From 0139133dc39336f8c6e6801fc758e2437aa4cb0a Mon Sep 17 00:00:00 2001 From: Kevin Ngo Date: Wed, 7 Nov 2018 16:19:06 +0800 Subject: [PATCH] bump aframe (ngokevin/aframe/tree/overlay3) for mult. raycasters --- vendor/aframe-master.js | 1341 +++++++++++++++---------------- vendor/aframe-master.js.map | 48 +- vendor/aframe-master.min.js | 709 ++++++++++++++++ vendor/aframe-master.min.js.map | 1 + 4 files changed, 1390 insertions(+), 709 deletions(-) create mode 100644 vendor/aframe-master.min.js create mode 100644 vendor/aframe-master.min.js.map diff --git a/vendor/aframe-master.js b/vendor/aframe-master.js index a789c6f..d98b449 100644 --- a/vendor/aframe-master.js +++ b/vendor/aframe-master.js @@ -2218,7 +2218,7 @@ function isnan (val) { }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"base64-js":4,"ieee754":15,"isarray":9}],9:[function(_dereq_,module,exports){ +},{"base64-js":4,"ieee754":18,"isarray":9}],9:[function(_dereq_,module,exports){ var toString = {}.toString; module.exports = Array.isArray || function (arr) { @@ -2226,6 +2226,359 @@ module.exports = Array.isArray || function (arr) { }; },{}],10:[function(_dereq_,module,exports){ + +/** + * This is the web browser implementation of `debug()`. + * + * Expose `debug()` as the module. + */ + +exports = module.exports = _dereq_('./debug'); +exports.log = log; +exports.formatArgs = formatArgs; +exports.save = save; +exports.load = load; +exports.useColors = useColors; +exports.storage = 'undefined' != typeof chrome + && 'undefined' != typeof chrome.storage + ? chrome.storage.local + : localstorage(); + +/** + * Colors. + */ + +exports.colors = [ + 'lightseagreen', + 'forestgreen', + 'goldenrod', + 'dodgerblue', + 'darkorchid', + 'crimson' +]; + +/** + * Currently only WebKit-based Web Inspectors, Firefox >= v31, + * and the Firebug extension (any Firefox version) are known + * to support "%c" CSS customizations. + * + * TODO: add a `localStorage` variable to explicitly enable/disable colors + */ + +function useColors() { + // is webkit? http://stackoverflow.com/a/16459606/376773 + return ('WebkitAppearance' in document.documentElement.style) || + // is firebug? http://stackoverflow.com/a/398120/376773 + (window.console && (console.firebug || (console.exception && console.table))) || + // is firefox >= v31? + // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages + (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31); +} + +/** + * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default. + */ + +exports.formatters.j = function(v) { + return JSON.stringify(v); +}; + + +/** + * Colorize log arguments if enabled. + * + * @api public + */ + +function formatArgs() { + var args = arguments; + var useColors = this.useColors; + + args[0] = (useColors ? '%c' : '') + + this.namespace + + (useColors ? ' %c' : ' ') + + args[0] + + (useColors ? '%c ' : ' '); + + if (!useColors) return args; + + var c = 'color: ' + this.color; + args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1)); + + // the final "%c" is somewhat tricky, because there could be other + // arguments passed either before or after the %c, so we need to + // figure out the correct index to insert the CSS into + var index = 0; + var lastC = 0; + args[0].replace(/%[a-z%]/g, function(match) { + if ('%%' === match) return; + index++; + if ('%c' === match) { + // we only are interested in the *last* %c + // (the user may have provided their own) + lastC = index; + } + }); + + args.splice(lastC, 0, c); + return args; +} + +/** + * Invokes `console.log()` when available. + * No-op when `console.log` is not a "function". + * + * @api public + */ + +function log() { + // this hackery is required for IE8/9, where + // the `console.log` function doesn't have 'apply' + return 'object' === typeof console + && console.log + && Function.prototype.apply.call(console.log, console, arguments); +} + +/** + * Save `namespaces`. + * + * @param {String} namespaces + * @api private + */ + +function save(namespaces) { + try { + if (null == namespaces) { + exports.storage.removeItem('debug'); + } else { + exports.storage.debug = namespaces; + } + } catch(e) {} +} + +/** + * Load `namespaces`. + * + * @return {String} returns the previously persisted debug modes + * @api private + */ + +function load() { + var r; + try { + r = exports.storage.debug; + } catch(e) {} + return r; +} + +/** + * Enable namespaces listed in `localStorage.debug` initially. + */ + +exports.enable(load()); + +/** + * Localstorage attempts to return the localstorage. + * + * This is necessary because safari throws + * when a user disables cookies/localstorage + * and you attempt to access it. + * + * @return {LocalStorage} + * @api private + */ + +function localstorage(){ + try { + return window.localStorage; + } catch (e) {} +} + +},{"./debug":11}],11:[function(_dereq_,module,exports){ + +/** + * This is the common logic for both the Node.js and web browser + * implementations of `debug()`. + * + * Expose `debug()` as the module. + */ + +exports = module.exports = debug; +exports.coerce = coerce; +exports.disable = disable; +exports.enable = enable; +exports.enabled = enabled; + +/** + * The currently active debug mode names, and names to skip. + */ + +exports.names = []; +exports.skips = []; + +/** + * Map of special "%n" handling functions, for the debug "format" argument. + * + * Valid key names are a single, lowercased letter, i.e. "n". + */ + +exports.formatters = {}; + +/** + * Previously assigned color. + */ + +var prevColor = 0; + +/** + * Select a color. + * + * @return {Number} + * @api private + */ + +function selectColor() { + return exports.colors[prevColor++ % exports.colors.length]; +} + +/** + * Create a debugger with the given `namespace`. + * + * @param {String} namespace + * @return {Function} + * @api public + */ + +function debug(namespace) { + + // define the `disabled` version + function disabled() { + } + disabled.enabled = false; + + // define the `enabled` version + function enabled() { + + var self = enabled; + + // add the `color` if not set + if (null == self.useColors) self.useColors = exports.useColors(); + if (null == self.color && self.useColors) self.color = selectColor(); + + var args = Array.prototype.slice.call(arguments); + + args[0] = exports.coerce(args[0]); + + if ('string' !== typeof args[0]) { + // anything else let's inspect with %o + args = ['%o'].concat(args); + } + + // apply any `formatters` transformations + var index = 0; + args[0] = args[0].replace(/%([a-z%])/g, function(match, format) { + // if we encounter an escaped % then don't increase the array index + if (match === '%%') return match; + index++; + var formatter = exports.formatters[format]; + if ('function' === typeof formatter) { + var val = args[index]; + match = formatter.call(self, val); + + // now we need to remove `args[index]` since it's inlined in the `format` + args.splice(index, 1); + index--; + } + return match; + }); + + if ('function' === typeof exports.formatArgs) { + args = exports.formatArgs.apply(self, args); + } + var logFn = enabled.log || exports.log || console.log.bind(console); + logFn.apply(self, args); + } + enabled.enabled = true; + + var fn = exports.enabled(namespace) ? enabled : disabled; + + fn.namespace = namespace; + + return fn; +} + +/** + * Enables a debug mode by namespaces. This can include modes + * separated by a colon and wildcards. + * + * @param {String} namespaces + * @api public + */ + +function enable(namespaces) { + exports.save(namespaces); + + var split = (namespaces || '').split(/[\s,]+/); + var len = split.length; + + for (var i = 0; i < len; i++) { + if (!split[i]) continue; // ignore empty strings + namespaces = split[i].replace(/\*/g, '.*?'); + if (namespaces[0] === '-') { + exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$')); + } else { + exports.names.push(new RegExp('^' + namespaces + '$')); + } + } +} + +/** + * Disable debug output. + * + * @api public + */ + +function disable() { + exports.enable(''); +} + +/** + * Returns true if the given mode name is enabled, false otherwise. + * + * @param {String} name + * @return {Boolean} + * @api public + */ + +function enabled(name) { + var i, len; + for (i = 0, len = exports.skips.length; i < len; i++) { + if (exports.skips[i].test(name)) { + return false; + } + } + for (i = 0, len = exports.names.length; i < len; i++) { + if (exports.names[i].test(name)) { + return true; + } + } + return false; +} + +/** + * Coerce `val`. + * + * @param {Mixed} val + * @return {Mixed} + * @api private + */ + +function coerce(val) { + if (val instanceof Error) return val.stack || val.message; + return val; +} + +},{}],12:[function(_dereq_,module,exports){ 'use strict'; var isObj = _dereq_('is-obj'); var hasOwnProperty = Object.prototype.hasOwnProperty; @@ -2295,7 +2648,10 @@ module.exports = function deepAssign(target) { return target; }; -},{"is-obj":19}],11:[function(_dereq_,module,exports){ +},{"is-obj":22}],13:[function(_dereq_,module,exports){ +/*! (C) WebReflection Mit Style License */ +(function(t,n,r,i){"use strict";function st(e,t){for(var n=0,r=e.length;n>0),o="attached",u="detached",a="extends",f="ADDITION",l="MODIFICATION",c="REMOVAL",h="DOMAttrModified",p="DOMContentLoaded",d="DOMSubtreeModified",v="<",m="=",g=/^[A-Z][A-Z0-9]*(?:-[A-Z0-9]+)+$/,y=["ANNOTATION-XML","COLOR-PROFILE","FONT-FACE","FONT-FACE-SRC","FONT-FACE-URI","FONT-FACE-FORMAT","FONT-FACE-NAME","MISSING-GLYPH"],b=[],w=[],E="",S=n.documentElement,x=b.indexOf||function(e){for(var t=this.length;t--&&this[t]!==e;);return t},T=r.prototype,N=T.hasOwnProperty,C=T.isPrototypeOf,k=r.defineProperty,L=r.getOwnPropertyDescriptor,A=r.getOwnPropertyNames,O=r.getPrototypeOf,M=r.setPrototypeOf,_=!!r.__proto__,D=r.create||function yt(e){return e?(yt.prototype=e,new yt):this},P=M||(_?function(e,t){return e.__proto__=t,e}:A&&L?function(){function e(e,t){for(var n,r=A(t),i=0,s=r.length;i { this.playSound(); }; }, update: function (oldData) { @@ -70290,12 +70667,12 @@ module.exports.Component = registerComponent('sound', { */ updateEventListener: function (oldEvt) { var el = this.el; - if (oldEvt) { el.removeEventListener(oldEvt, this.playSound); } - el.addEventListener(this.data.on, this.playSound); + if (oldEvt) { el.removeEventListener(oldEvt, this.playSoundBound); } + el.addEventListener(this.data.on, this.playSoundBound); }, removeEventListener: function () { - this.el.removeEventListener(this.data.on, this.playSound); + this.el.removeEventListener(this.data.on, this.playSoundBound); }, /** @@ -70416,7 +70793,7 @@ module.exports.Component = registerComponent('sound', { } }); -},{"../core/component":104,"../lib/three":154,"../utils/bind":171,"../utils/debug":173}],90:[function(_dereq_,module,exports){ +},{"../core/component":107,"../lib/three":157,"../utils/debug":176}],93:[function(_dereq_,module,exports){ var createTextGeometry = _dereq_('three-bmfont-text'); var loadBMFont = _dereq_('load-bmfont'); @@ -70901,7 +71278,7 @@ function PromiseCache () { }; } -},{"../core/component":104,"../core/shader":115,"../lib/three":154,"../utils/":177,"load-bmfont":21,"three-bmfont-text":32}],91:[function(_dereq_,module,exports){ +},{"../core/component":107,"../core/shader":118,"../lib/three":157,"../utils/":180,"load-bmfont":24,"three-bmfont-text":35}],94:[function(_dereq_,module,exports){ var registerComponent = _dereq_('../core/component').registerComponent; var controllerUtils = _dereq_('../utils/tracked-controls'); var DEFAULT_CAMERA_HEIGHT = _dereq_('../constants').DEFAULT_CAMERA_HEIGHT; @@ -71235,7 +71612,7 @@ module.exports.Component = registerComponent('tracked-controls', { } }); -},{"../constants":96,"../core/component":104,"../lib/three":154,"../utils/tracked-controls":183}],92:[function(_dereq_,module,exports){ +},{"../constants":99,"../core/component":107,"../lib/three":157,"../utils/tracked-controls":186}],95:[function(_dereq_,module,exports){ var registerComponent = _dereq_('../core/component').registerComponent; /** @@ -71249,7 +71626,7 @@ module.exports.Component = registerComponent('visible', { } }); -},{"../core/component":104}],93:[function(_dereq_,module,exports){ +},{"../core/component":107}],96:[function(_dereq_,module,exports){ var registerComponent = _dereq_('../core/component').registerComponent; var utils = _dereq_('../utils/'); @@ -71478,7 +71855,7 @@ module.exports.Component = registerComponent('vive-controls', { } }); -},{"../core/component":104,"../utils/":177,"../utils/tracked-controls":183}],94:[function(_dereq_,module,exports){ +},{"../core/component":107,"../utils/":180,"../utils/tracked-controls":186}],97:[function(_dereq_,module,exports){ var KEYCODE_TO_CODE = _dereq_('../constants').keyboardevent.KEYCODE_TO_CODE; var registerComponent = _dereq_('../core/component').registerComponent; var THREE = _dereq_('../lib/three'); @@ -71687,7 +72064,7 @@ function isEmptyObject (keys) { return true; } -},{"../constants":96,"../core/component":104,"../lib/three":154,"../utils/":177}],95:[function(_dereq_,module,exports){ +},{"../constants":99,"../core/component":107,"../lib/three":157,"../utils/":180}],98:[function(_dereq_,module,exports){ /* global THREE */ var bind = _dereq_('../utils/bind'); var registerComponent = _dereq_('../core/component').registerComponent; @@ -72136,7 +72513,7 @@ module.exports.Component = registerComponent('windows-motion-controls', { } }); -},{"../constants":96,"../core/component":104,"../utils/":177,"../utils/bind":171,"../utils/tracked-controls":183}],96:[function(_dereq_,module,exports){ +},{"../constants":99,"../core/component":107,"../utils/":180,"../utils/bind":174,"../utils/tracked-controls":186}],99:[function(_dereq_,module,exports){ module.exports = { AFRAME_INJECTED: 'aframe-injected', DEFAULT_CAMERA_HEIGHT: 1.6, @@ -72144,7 +72521,7 @@ module.exports = { keyboardevent: _dereq_('./keyboardevent') }; -},{"./keyboardevent":97}],97:[function(_dereq_,module,exports){ +},{"./keyboardevent":100}],100:[function(_dereq_,module,exports){ module.exports = { // Tiny KeyboardEvent.code polyfill. KEYCODE_TO_CODE: { @@ -72159,7 +72536,7 @@ module.exports = { } }; -},{}],98:[function(_dereq_,module,exports){ +},{}],101:[function(_dereq_,module,exports){ var ANode = _dereq_('./a-node'); var bind = _dereq_('../utils/bind'); var debug = _dereq_('../utils/debug'); @@ -72424,7 +72801,7 @@ function inferResponseType (src) { } module.exports.inferResponseType = inferResponseType; -},{"../lib/three":154,"../utils/bind":171,"../utils/debug":173,"./a-node":102,"./a-register-element":103}],99:[function(_dereq_,module,exports){ +},{"../lib/three":157,"../utils/bind":174,"../utils/debug":176,"./a-node":105,"./a-register-element":106}],102:[function(_dereq_,module,exports){ var debug = _dereq_('../utils/debug'); var registerElement = _dereq_('./a-register-element').registerElement; @@ -72474,7 +72851,7 @@ module.exports = registerElement('a-cubemap', { }) }); -},{"../utils/debug":173,"./a-register-element":103}],100:[function(_dereq_,module,exports){ +},{"../utils/debug":176,"./a-register-element":106}],103:[function(_dereq_,module,exports){ var ANode = _dereq_('./a-node'); var COMPONENTS = _dereq_('./component').components; var registerElement = _dereq_('./a-register-element').registerElement; @@ -72588,19 +72965,6 @@ var proto = Object.create(ANode.prototype, { } }, - /** - * Apply mixin to component. - */ - handleMixinUpdate: { - value: function (attrName) { - if (!attrName) { - this.updateComponents(); - return; - } - this.updateComponent(attrName, this.getDOMAttribute(attrName)); - } - }, - getObject3D: { value: function (type) { return this.object3DMap[type]; @@ -73099,52 +73463,59 @@ var proto = Object.create(ANode.prototype, { * it is a boolean indicating whether to clobber previous values (defaults to false). */ setAttribute: { - value: function (attrName, arg1, arg2) { - var newAttrValue; - var clobber; - var componentName; - var delimiterIndex; - var isDebugMode; + value: (function () { + var singlePropUpdate = {}; - delimiterIndex = attrName.indexOf(MULTIPLE_COMPONENT_DELIMITER); - componentName = delimiterIndex > 0 ? attrName.substring(0, delimiterIndex) : attrName; + return function (attrName, arg1, arg2) { + var newAttrValue; + var clobber; + var componentName; + var delimiterIndex; + var isDebugMode; + var key; - // Not a component. Normal set attribute. - if (!COMPONENTS[componentName]) { - if (attrName === 'mixin') { this.mixinUpdate(arg1); } - ANode.prototype.setAttribute.call(this, attrName, arg1); - return; - } + delimiterIndex = attrName.indexOf(MULTIPLE_COMPONENT_DELIMITER); + componentName = delimiterIndex > 0 ? attrName.substring(0, delimiterIndex) : attrName; - // Initialize component first if not yet initialized. - if (!this.components[attrName] && this.hasAttribute(attrName)) { - this.updateComponent(attrName, - window.HTMLElement.prototype.getAttribute.call(this, attrName)); - } + // Not a component. Normal set attribute. + if (!COMPONENTS[componentName]) { + if (attrName === 'mixin') { this.mixinUpdate(arg1); } + ANode.prototype.setAttribute.call(this, attrName, arg1); + return; + } - // Determine new attributes from the arguments - if (typeof arg2 !== 'undefined' && - typeof arg1 === 'string' && - arg1.length > 0 && - typeof utils.styleParser.parse(arg1) === 'string') { - // Update a single property of a multi-property component - newAttrValue = {}; - newAttrValue[arg1] = arg2; - clobber = false; - } else { - // Update with a value, object, or CSS-style property string, with the possiblity - // of clobbering previous values. - newAttrValue = arg1; - clobber = (arg2 === true); - } + // Initialize component first if not yet initialized. + if (!this.components[attrName] && this.hasAttribute(attrName)) { + this.updateComponent( + attrName, + window.HTMLElement.prototype.getAttribute.call(this, attrName)); + } - // Update component - this.updateComponent(attrName, newAttrValue, clobber); + // Determine new attributes from the arguments + if (typeof arg2 !== 'undefined' && + typeof arg1 === 'string' && + arg1.length > 0 && + typeof utils.styleParser.parse(arg1) === 'string') { + // Update a single property of a multi-property component + for (key in singlePropUpdate) { delete singlePropUpdate[key]; } + newAttrValue = singlePropUpdate; + newAttrValue[arg1] = arg2; + clobber = false; + } else { + // Update with a value, object, or CSS-style property string, with the possiblity + // of clobbering previous values. + newAttrValue = arg1; + clobber = (arg2 === true); + } - // In debug mode, write component data up to the DOM. - isDebugMode = this.sceneEl && this.sceneEl.getAttribute('debug'); - if (isDebugMode) { this.components[attrName].flushToDOM(); } - }, + // Update component + this.updateComponent(attrName, newAttrValue, clobber); + + // In debug mode, write component data up to the DOM. + isDebugMode = this.sceneEl && this.sceneEl.getAttribute('debug'); + if (isDebugMode) { this.components[attrName].flushToDOM(); } + }; + })(), writable: window.debug }, @@ -73320,7 +73691,7 @@ function getRotation (entityEl) { AEntity = registerElement('a-entity', {prototype: proto}); module.exports = AEntity; -},{"../lib/three":154,"../utils/":177,"./a-node":102,"./a-register-element":103,"./component":104}],101:[function(_dereq_,module,exports){ +},{"../lib/three":157,"../utils/":180,"./a-node":105,"./a-register-element":106,"./component":107}],104:[function(_dereq_,module,exports){ var ANode = _dereq_('./a-node'); var registerElement = _dereq_('./a-register-element').registerElement; var components = _dereq_('./component').components; @@ -73345,6 +73716,7 @@ module.exports = registerElement('a-mixin', { attributeChangedCallback: { value: function (attr, oldVal, newVal) { this.cacheAttribute(attr, newVal); + this.updateEntities(); } }, @@ -73435,8 +73807,8 @@ module.exports = registerElement('a-mixin', { }) }); -},{"../utils":177,"./a-node":102,"./a-register-element":103,"./component":104}],102:[function(_dereq_,module,exports){ -/* global CustomEvent, MutationObserver */ +},{"../utils":180,"./a-node":105,"./a-register-element":106,"./component":107}],105:[function(_dereq_,module,exports){ +/* global CustomEvent */ var registerElement = _dereq_('./a-register-element').registerElement; var isNode = _dereq_('./a-register-element').isNode; var utils = _dereq_('../utils/'); @@ -73444,8 +73816,6 @@ var utils = _dereq_('../utils/'); var warn = utils.debug('core:a-node:warn'); var error = utils.debug('core:a-node:error'); -var MIXIN_OBSERVER_CONFIG = {attributes: true}; - /** * Base class for A-Frame that manages loading of objects. * @@ -73460,7 +73830,6 @@ module.exports = registerElement('a-node', { this.hasLoaded = false; this.isNode = true; this.mixinEls = []; - this.mixinObservers = {}; }, writable: window.debug }, @@ -73650,7 +74019,6 @@ module.exports = registerElement('a-node', { // Register mixin. this.computedMixinStr = this.computedMixinStr + ' ' + mixinEl.id; this.mixinEls.push(mixinEl); - this.attachMixinListener(mixinEl); } }, @@ -73673,48 +74041,9 @@ module.exports = registerElement('a-node', { break; } } - this.removeMixinListener(mixinId); } }, - removeMixinListener: { - value: function (mixinId) { - var observer = this.mixinObservers[mixinId]; - if (!observer) { return; } - observer.disconnect(); - this.mixinObservers[mixinId] = null; - } - }, - - /** - * Add mutation observer from entity to mixin. - */ - attachMixinListener: { - value: function (mixinEl) { - var currentObserver; - var mixinId; - var observer; - var self = this; - - if (!mixinEl) { return; } - - mixinId = mixinEl.id; - currentObserver = this.mixinObservers[mixinId]; - if (currentObserver) { return; } - - // Add observer. - observer = new MutationObserver(function (mutations) { - self.handleMixinUpdate(mutations[0].attributeName); - }); - observer.observe(mixinEl, MIXIN_OBSERVER_CONFIG); - this.mixinObservers[mixinId] = observer; - } - }, - - handleMixinUpdate: { - value: function () { /* no-op */ } - }, - /** * Emit a DOM event. * @@ -73743,7 +74072,7 @@ module.exports = registerElement('a-node', { }) }); -},{"../utils/":177,"./a-register-element":103}],103:[function(_dereq_,module,exports){ +},{"../utils/":180,"./a-register-element":106}],106:[function(_dereq_,module,exports){ /* ------------------------------------------------------------ ------------- WARNING WARNING WARNING WARNING -------------- @@ -73930,7 +74259,7 @@ function copyProperties (source, destination) { ANode = _dereq_('./a-node'); AEntity = _dereq_('./a-entity'); -},{"./a-entity":100,"./a-node":102,"document-register-element":201}],104:[function(_dereq_,module,exports){ +},{"./a-entity":103,"./a-node":105,"document-register-element":13}],107:[function(_dereq_,module,exports){ /* global Node */ var schema = _dereq_('./schema'); var scenes = _dereq_('./scene/scenes'); @@ -74228,15 +74557,10 @@ Component.prototype = { // Update previous attribute value to later decide if we skip type checking. this.previousAttrValue = attrValue; - if (this.updateSchema) { this.updateSchema(this.buildData(attrValue, false, true)); } - this.data = this.buildData(attrValue, clobber, false, skipTypeChecking); - // Cache current attrValue for future updates. this.updateCachedAttrValue(attrValue, clobber); - if (this.updateSchema) { - this.updateSchema(this.buildData(this.attrValue, false, true)); - } + if (this.updateSchema) { this.updateSchema(this.buildData(this.attrValue, false, true)); } this.data = this.buildData(this.attrValue, clobber, false, skipTypeChecking); if (!this.initialized) { @@ -74616,6 +74940,8 @@ function wrapRemove (removeMethod) { this.objectPool.recycle(this.attrValue); this.objectPool.recycle(this.oldData); this.objectPool.recycle(this.parsingAttrValue); + + this.attrValue = this.oldData = this.parsingAttrValue = undefined; }; } @@ -74627,7 +74953,7 @@ function isObjectOrArray (value) { return value && (value.constructor === Object || value.constructor === Array); } -},{"../utils/":177,"./scene/scenes":112,"./schema":114,"./system":116}],105:[function(_dereq_,module,exports){ +},{"../utils/":180,"./scene/scenes":115,"./schema":117,"./system":119}],108:[function(_dereq_,module,exports){ _dereq_('../../vendor/effects/EffectComposer'); _dereq_('../../vendor/effects/RenderPass'); @@ -74706,7 +75032,7 @@ module.exports.registerEffect = function (name, definition) { registerComponent('effect-' + name, proto); }; -},{"../../vendor/effects/EffectComposer":187,"../../vendor/effects/RenderPass":189,"../lib/three":154,"../utils/":177,"./component":104}],106:[function(_dereq_,module,exports){ +},{"../../vendor/effects/EffectComposer":190,"../../vendor/effects/RenderPass":192,"../lib/three":157,"../utils/":180,"./component":107}],109:[function(_dereq_,module,exports){ var schema = _dereq_('./schema'); var processSchema = schema.process; @@ -74780,7 +75106,7 @@ module.exports.registerGeometry = function (name, definition) { return NewGeometry; }; -},{"../lib/three":154,"./schema":114}],107:[function(_dereq_,module,exports){ +},{"../lib/three":157,"./schema":117}],110:[function(_dereq_,module,exports){ var coordinates = _dereq_('../utils/coordinates'); var debug = _dereq_('debug'); @@ -75004,7 +75330,7 @@ function isValidDefaultCoordinate (possibleCoordinates, dimensions) { } module.exports.isValidDefaultCoordinate = isValidDefaultCoordinate; -},{"../utils/coordinates":172,"debug":199}],108:[function(_dereq_,module,exports){ +},{"../utils/coordinates":175,"debug":10}],111:[function(_dereq_,module,exports){ /* global Promise, screen */ var initMetaTags = _dereq_('./metaTags').inject; var initWakelock = _dereq_('./wakelock'); @@ -75069,19 +75395,13 @@ module.exports.AScene = registerElement('a-scene', { addFullScreenStyles: { value: function () { - var htmlEl = document.documentElement; - htmlEl.classList.add('a-html'); - document.body.classList.add('a-body'); - this.classList.add('fullscreen'); + document.documentElement.classList.add('a-fullscreen'); } }, removeFullScreenStyles: { value: function () { - var htmlEl = document.documentElement; - htmlEl.classList.remove('a-html'); - document.body.classList.remove('a-body'); - this.classList.remove('fullscreen'); + document.documentElement.classList.remove('a-fullscreen'); } }, @@ -75536,9 +75856,9 @@ module.exports.AScene = registerElement('a-scene', { this.effect.autoSubmitFrame = false; renderer.setPixelRatio(window.devicePixelRatio); renderer.sortObjects = false; - renderer.vr.setPoseTarget(this.camera); + if (this.camera) { renderer.vr.setPoseTarget(this.camera.el.object3D); } this.addEventListener('camera-set-active', function () { - renderer.vr.setPoseTarget(self.camera); + renderer.vr.setPoseTarget(self.camera.el.object3D); }); loadingScreen.setup(this, getCanvasSize); }, @@ -75792,7 +76112,7 @@ function setupCanvas (sceneEl) { } module.exports.setupCanvas = setupCanvas; // For testing. -},{"../../lib/three":154,"../../utils/":177,"../a-entity":100,"../a-node":102,"../a-register-element":103,"../system":116,"./loadingScreen":109,"./metaTags":110,"./postMessage":111,"./scenes":112,"./wakelock":113}],109:[function(_dereq_,module,exports){ +},{"../../lib/three":157,"../../utils/":180,"../a-entity":103,"../a-node":105,"../a-register-element":106,"../system":119,"./loadingScreen":112,"./metaTags":113,"./postMessage":114,"./scenes":115,"./wakelock":116}],112:[function(_dereq_,module,exports){ /* global THREE */ var utils = _dereq_('../../utils/'); var styleParser = utils.styleParser; @@ -75900,7 +76220,7 @@ function setupTitle () { sceneEl.appendChild(titleEl); } -},{"../../utils/":177}],110:[function(_dereq_,module,exports){ +},{"../../utils/":180}],113:[function(_dereq_,module,exports){ var constants = _dereq_('../../constants/'); var extend = _dereq_('../../utils').extend; @@ -75981,7 +76301,7 @@ function createTag (tagObj) { return extend(meta, tagObj.attributes); } -},{"../../constants/":96,"../../utils":177}],111:[function(_dereq_,module,exports){ +},{"../../constants/":99,"../../utils":180}],114:[function(_dereq_,module,exports){ var bind = _dereq_('../../utils/bind'); var isIframed = _dereq_('../../utils/').isIframed; @@ -76014,13 +76334,13 @@ function postMessageAPIHandler (event) { } } -},{"../../utils/":177,"../../utils/bind":171}],112:[function(_dereq_,module,exports){ +},{"../../utils/":180,"../../utils/bind":174}],115:[function(_dereq_,module,exports){ /* Scene index for keeping track of created scenes. */ module.exports = []; -},{}],113:[function(_dereq_,module,exports){ +},{}],116:[function(_dereq_,module,exports){ var Wakelock = _dereq_('../../../vendor/wakelock/wakelock'); module.exports = function initWakelock (scene) { @@ -76031,7 +76351,7 @@ module.exports = function initWakelock (scene) { scene.addEventListener('exit-vr', function () { wakelock.release(); }); }; -},{"../../../vendor/wakelock/wakelock":198}],114:[function(_dereq_,module,exports){ +},{"../../../vendor/wakelock/wakelock":201}],117:[function(_dereq_,module,exports){ var utils = _dereq_('../utils/'); var PropertyTypes = _dereq_('./propertyTypes'); @@ -76232,7 +76552,7 @@ function stringifyProperty (value, propDefinition) { } module.exports.stringifyProperty = stringifyProperty; -},{"../utils/":177,"./propertyTypes":107}],115:[function(_dereq_,module,exports){ +},{"../utils/":180,"./propertyTypes":110}],118:[function(_dereq_,module,exports){ var schema = _dereq_('./schema'); var processSchema = schema.process; @@ -76421,7 +76741,7 @@ module.exports.registerShader = function (name, definition) { return NewShader; }; -},{"../lib/three":154,"../utils":177,"./schema":114}],116:[function(_dereq_,module,exports){ +},{"../lib/three":157,"../utils":180,"./schema":117}],119:[function(_dereq_,module,exports){ var components = _dereq_('./component'); var schema = _dereq_('./schema'); var utils = _dereq_('../utils/'); @@ -76579,10 +76899,10 @@ module.exports.registerSystem = function (name, definition) { for (i = 0; i < scenes.length; i++) { scenes[i].initSystem(name); } }; -},{"../utils/":177,"./component":104,"./schema":114}],117:[function(_dereq_,module,exports){ +},{"../utils/":180,"./component":107,"./schema":117}],120:[function(_dereq_,module,exports){ _dereq_('./pivot'); -},{"./pivot":118}],118:[function(_dereq_,module,exports){ +},{"./pivot":121}],121:[function(_dereq_,module,exports){ var registerComponent = _dereq_('../../core/component').registerComponent; var THREE = _dereq_('../../lib/three'); @@ -76631,7 +76951,7 @@ registerComponent('pivot', { } }); -},{"../../core/component":104,"../../lib/three":154}],119:[function(_dereq_,module,exports){ +},{"../../core/component":107,"../../lib/three":157}],122:[function(_dereq_,module,exports){ /** * Common mesh defaults, mappings, and transforms. */ @@ -76658,7 +76978,7 @@ module.exports = function getMeshMixin () { }; }; -},{"../../core/component":104,"../../core/shader":115,"../../utils/":177}],120:[function(_dereq_,module,exports){ +},{"../../core/component":107,"../../core/shader":118,"../../utils/":180}],123:[function(_dereq_,module,exports){ _dereq_('./primitives/a-camera'); _dereq_('./primitives/a-collada-model'); _dereq_('./primitives/a-cursor'); @@ -76675,7 +76995,7 @@ _dereq_('./primitives/a-video'); _dereq_('./primitives/a-videosphere'); _dereq_('./primitives/meshPrimitives'); -},{"./primitives/a-camera":122,"./primitives/a-collada-model":123,"./primitives/a-cursor":124,"./primitives/a-curvedimage":125,"./primitives/a-gltf-model":126,"./primitives/a-image":127,"./primitives/a-light":128,"./primitives/a-link":129,"./primitives/a-obj-model":130,"./primitives/a-sky":131,"./primitives/a-sound":132,"./primitives/a-text":133,"./primitives/a-video":134,"./primitives/a-videosphere":135,"./primitives/meshPrimitives":136}],121:[function(_dereq_,module,exports){ +},{"./primitives/a-camera":125,"./primitives/a-collada-model":126,"./primitives/a-cursor":127,"./primitives/a-curvedimage":128,"./primitives/a-gltf-model":129,"./primitives/a-image":130,"./primitives/a-light":131,"./primitives/a-link":132,"./primitives/a-obj-model":133,"./primitives/a-sky":134,"./primitives/a-sound":135,"./primitives/a-text":136,"./primitives/a-video":137,"./primitives/a-videosphere":138,"./primitives/meshPrimitives":139}],124:[function(_dereq_,module,exports){ var AEntity = _dereq_('../../core/a-entity'); var components = _dereq_('../../core/component').components; var registerElement = _dereq_('../../core/a-register-element').registerElement; @@ -76874,7 +77194,7 @@ function definePrimitive (tagName, defaultComponents, mappings) { } module.exports.definePrimitive = definePrimitive; -},{"../../core/a-entity":100,"../../core/a-register-element":103,"../../core/component":104,"../../utils/":177}],122:[function(_dereq_,module,exports){ +},{"../../core/a-entity":103,"../../core/a-register-element":106,"../../core/component":107,"../../utils/":180}],125:[function(_dereq_,module,exports){ var registerPrimitive = _dereq_('../primitives').registerPrimitive; registerPrimitive('a-camera', { @@ -76898,7 +77218,7 @@ registerPrimitive('a-camera', { } }); -},{"../primitives":121}],123:[function(_dereq_,module,exports){ +},{"../primitives":124}],126:[function(_dereq_,module,exports){ var registerPrimitive = _dereq_('../primitives').registerPrimitive; registerPrimitive('a-collada-model', { @@ -76907,7 +77227,7 @@ registerPrimitive('a-collada-model', { } }); -},{"../primitives":121}],124:[function(_dereq_,module,exports){ +},{"../primitives":124}],127:[function(_dereq_,module,exports){ var getMeshMixin = _dereq_('../getMeshMixin'); var registerPrimitive = _dereq_('../primitives').registerPrimitive; var utils = _dereq_('../../../utils/'); @@ -76942,7 +77262,7 @@ registerPrimitive('a-cursor', utils.extendDeep({}, getMeshMixin(), { } })); -},{"../../../utils/":177,"../getMeshMixin":119,"../primitives":121}],125:[function(_dereq_,module,exports){ +},{"../../../utils/":180,"../getMeshMixin":122,"../primitives":124}],128:[function(_dereq_,module,exports){ var getMeshMixin = _dereq_('../getMeshMixin'); var registerPrimitive = _dereq_('../primitives').registerPrimitive; var utils = _dereq_('../../../utils/'); @@ -76979,7 +77299,7 @@ registerPrimitive('a-curvedimage', utils.extendDeep({}, getMeshMixin(), { } })); -},{"../../../utils/":177,"../getMeshMixin":119,"../primitives":121}],126:[function(_dereq_,module,exports){ +},{"../../../utils/":180,"../getMeshMixin":122,"../primitives":124}],129:[function(_dereq_,module,exports){ var registerPrimitive = _dereq_('../primitives').registerPrimitive; registerPrimitive('a-gltf-model', { @@ -76988,7 +77308,7 @@ registerPrimitive('a-gltf-model', { } }); -},{"../primitives":121}],127:[function(_dereq_,module,exports){ +},{"../primitives":124}],130:[function(_dereq_,module,exports){ var getMeshMixin = _dereq_('../getMeshMixin'); var registerPrimitive = _dereq_('../primitives').registerPrimitive; var utils = _dereq_('../../../utils/'); @@ -77012,7 +77332,7 @@ registerPrimitive('a-image', utils.extendDeep({}, getMeshMixin(), { } })); -},{"../../../utils/":177,"../getMeshMixin":119,"../primitives":121}],128:[function(_dereq_,module,exports){ +},{"../../../utils/":180,"../getMeshMixin":122,"../primitives":124}],131:[function(_dereq_,module,exports){ var registerPrimitive = _dereq_('../primitives').registerPrimitive; registerPrimitive('a-light', { @@ -77033,11 +77353,15 @@ registerPrimitive('a-light', { } }); -},{"../primitives":121}],129:[function(_dereq_,module,exports){ +},{"../primitives":124}],132:[function(_dereq_,module,exports){ var registerPrimitive = _dereq_('../primitives').registerPrimitive; registerPrimitive('a-link', { - defaultComponents: {}, + defaultComponents: { + link: { + visualAspectEnabled: true + } + }, mappings: { href: 'link.href', @@ -77046,7 +77370,7 @@ registerPrimitive('a-link', { } }); -},{"../primitives":121}],130:[function(_dereq_,module,exports){ +},{"../primitives":124}],133:[function(_dereq_,module,exports){ var meshMixin = _dereq_('../getMeshMixin')(); var registerPrimitive = _dereq_('../primitives').registerPrimitive; var utils = _dereq_('../../../utils/'); @@ -77062,7 +77386,7 @@ registerPrimitive('a-obj-model', utils.extendDeep({}, meshMixin, { } })); -},{"../../../utils/":177,"../getMeshMixin":119,"../primitives":121}],131:[function(_dereq_,module,exports){ +},{"../../../utils/":180,"../getMeshMixin":122,"../primitives":124}],134:[function(_dereq_,module,exports){ var getMeshMixin = _dereq_('../getMeshMixin'); var registerPrimitive = _dereq_('../primitives').registerPrimitive; var utils = _dereq_('../../../utils/'); @@ -77088,7 +77412,7 @@ registerPrimitive('a-sky', utils.extendDeep({}, getMeshMixin(), { mappings: utils.extendDeep({}, meshPrimitives['a-sphere'].prototype.mappings) })); -},{"../../../utils/":177,"../getMeshMixin":119,"../primitives":121,"./meshPrimitives":136}],132:[function(_dereq_,module,exports){ +},{"../../../utils/":180,"../getMeshMixin":122,"../primitives":124,"./meshPrimitives":139}],135:[function(_dereq_,module,exports){ var registerPrimitive = _dereq_('../primitives').registerPrimitive; registerPrimitive('a-sound', { @@ -77105,12 +77429,12 @@ registerPrimitive('a-sound', { } }); -},{"../primitives":121}],133:[function(_dereq_,module,exports){ +},{"../primitives":124}],136:[function(_dereq_,module,exports){ // using `definePrimitive` helper. var definePrimitive = _dereq_('../primitives').definePrimitive; definePrimitive('a-text', {text: {anchor: 'align', width: 5}}); -},{"../primitives":121}],134:[function(_dereq_,module,exports){ +},{"../primitives":124}],137:[function(_dereq_,module,exports){ var getMeshMixin = _dereq_('../getMeshMixin'); var registerPrimitive = _dereq_('../primitives').registerPrimitive; var utils = _dereq_('../../../utils/'); @@ -77134,7 +77458,7 @@ registerPrimitive('a-video', utils.extendDeep({}, getMeshMixin(), { } })); -},{"../../../utils/":177,"../getMeshMixin":119,"../primitives":121}],135:[function(_dereq_,module,exports){ +},{"../../../utils/":180,"../getMeshMixin":122,"../primitives":124}],138:[function(_dereq_,module,exports){ var getMeshMixin = _dereq_('../getMeshMixin'); var registerPrimitive = _dereq_('../primitives').registerPrimitive; var utils = _dereq_('../../../utils/'); @@ -77163,7 +77487,7 @@ registerPrimitive('a-videosphere', utils.extendDeep({}, getMeshMixin(), { } })); -},{"../../../utils/":177,"../getMeshMixin":119,"../primitives":121}],136:[function(_dereq_,module,exports){ +},{"../../../utils/":180,"../getMeshMixin":122,"../primitives":124}],139:[function(_dereq_,module,exports){ /** * Automated mesh primitive registration. */ @@ -77203,7 +77527,7 @@ function unCamelCase (str) { return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase(); } -},{"../../../core/geometry":106,"../../../utils/":177,"../getMeshMixin":119,"../primitives":121}],137:[function(_dereq_,module,exports){ +},{"../../../core/geometry":109,"../../../utils/":180,"../getMeshMixin":122,"../primitives":124}],140:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77224,7 +77548,7 @@ registerGeometry('box', { } }); -},{"../core/geometry":106,"../lib/three":154}],138:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],141:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77244,7 +77568,7 @@ registerGeometry('circle', { } }); -},{"../core/geometry":106,"../lib/three":154}],139:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],142:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77270,7 +77594,7 @@ registerGeometry('cone', { } }); -},{"../core/geometry":106,"../lib/three":154}],140:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],143:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77294,7 +77618,7 @@ registerGeometry('cylinder', { } }); -},{"../core/geometry":106,"../lib/three":154}],141:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],144:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77309,7 +77633,7 @@ registerGeometry('dodecahedron', { } }); -},{"../core/geometry":106,"../lib/three":154}],142:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],145:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77324,7 +77648,7 @@ registerGeometry('icosahedron', { } }); -},{"../core/geometry":106,"../lib/three":154}],143:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],146:[function(_dereq_,module,exports){ _dereq_('./box.js'); _dereq_('./circle.js'); _dereq_('./cone.js'); @@ -77340,7 +77664,7 @@ _dereq_('./torus.js'); _dereq_('./torusKnot.js'); _dereq_('./triangle.js'); -},{"./box.js":137,"./circle.js":138,"./cone.js":139,"./cylinder.js":140,"./dodecahedron.js":141,"./icosahedron.js":142,"./octahedron.js":144,"./plane.js":145,"./ring.js":146,"./sphere.js":147,"./tetrahedron.js":148,"./torus.js":149,"./torusKnot.js":150,"./triangle.js":151}],144:[function(_dereq_,module,exports){ +},{"./box.js":140,"./circle.js":141,"./cone.js":142,"./cylinder.js":143,"./dodecahedron.js":144,"./icosahedron.js":145,"./octahedron.js":147,"./plane.js":148,"./ring.js":149,"./sphere.js":150,"./tetrahedron.js":151,"./torus.js":152,"./torusKnot.js":153,"./triangle.js":154}],147:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77355,7 +77679,7 @@ registerGeometry('octahedron', { } }); -},{"../core/geometry":106,"../lib/three":154}],145:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],148:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77372,7 +77696,7 @@ registerGeometry('plane', { } }); -},{"../core/geometry":106,"../lib/three":154}],146:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],149:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77395,7 +77719,7 @@ registerGeometry('ring', { } }); -},{"../core/geometry":106,"../lib/three":154}],147:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],150:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77419,7 +77743,7 @@ registerGeometry('sphere', { } }); -},{"../core/geometry":106,"../lib/three":154}],148:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],151:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77434,7 +77758,7 @@ registerGeometry('tetrahedron', { } }); -},{"../core/geometry":106,"../lib/three":154}],149:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],152:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77456,7 +77780,7 @@ registerGeometry('torus', { } }); -},{"../core/geometry":106,"../lib/three":154}],150:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],153:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77477,7 +77801,7 @@ registerGeometry('torusKnot', { } }); -},{"../core/geometry":106,"../lib/three":154}],151:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],154:[function(_dereq_,module,exports){ var registerGeometry = _dereq_('../core/geometry').registerGeometry; var THREE = _dereq_('../lib/three'); @@ -77532,7 +77856,7 @@ registerGeometry('triangle', { } }); -},{"../core/geometry":106,"../lib/three":154}],152:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../lib/three":157}],155:[function(_dereq_,module,exports){ // Check before the polyfill runs. window.hasNativeWebVRImplementation = !!window.navigator.getVRDisplays || !!window.navigator.getVRDevices; @@ -77613,7 +77937,7 @@ _dereq_('./core/a-mixin'); _dereq_('./extras/components/'); _dereq_('./extras/primitives/'); -console.log('A-Frame Version: 0.8.2 (Date 2018-10-12, Commit #4717599f)'); +console.log('A-Frame Version: 0.8.2 (Date 2018-11-07, Commit #ffa3bdf4)'); console.log('three Version:', pkg.dependencies['three']); console.log('WebVR Polyfill Version:', pkg.dependencies['webvr-polyfill']); @@ -77644,7 +77968,7 @@ module.exports = window.AFRAME = { version: pkg.version }; -},{"../package":48,"./components/index":58,"./core/a-assets":98,"./core/a-cubemap":99,"./core/a-entity":100,"./core/a-mixin":101,"./core/a-node":102,"./core/a-register-element":103,"./core/component":104,"./core/geometry":106,"./core/scene/a-scene":108,"./core/scene/scenes":112,"./core/schema":114,"./core/shader":115,"./core/system":116,"./extras/components/":117,"./extras/primitives/":120,"./extras/primitives/getMeshMixin":119,"./extras/primitives/primitives":121,"./geometries/index":143,"./lib/three":154,"./shaders/index":156,"./style/aframe.css":161,"./style/rStats.css":162,"./systems/index":166,"./utils/":177,"animejs":2,"present":29,"promise-polyfill":30,"webvr-polyfill":43}],153:[function(_dereq_,module,exports){ +},{"../package":51,"./components/index":61,"./core/a-assets":101,"./core/a-cubemap":102,"./core/a-entity":103,"./core/a-mixin":104,"./core/a-node":105,"./core/a-register-element":106,"./core/component":107,"./core/geometry":109,"./core/scene/a-scene":111,"./core/scene/scenes":115,"./core/schema":117,"./core/shader":118,"./core/system":119,"./extras/components/":120,"./extras/primitives/":123,"./extras/primitives/getMeshMixin":122,"./extras/primitives/primitives":124,"./geometries/index":146,"./lib/three":157,"./shaders/index":159,"./style/aframe.css":164,"./style/rStats.css":165,"./systems/index":169,"./utils/":180,"animejs":2,"present":32,"promise-polyfill":33,"webvr-polyfill":46}],156:[function(_dereq_,module,exports){ window.aframeStats = function (scene) { var _rS = null; var _scene = scene; @@ -77701,7 +78025,7 @@ if (typeof module === 'object') { }; } -},{}],154:[function(_dereq_,module,exports){ +},{}],157:[function(_dereq_,module,exports){ (function (global){ var THREE = global.THREE = _dereq_('three'); @@ -77741,7 +78065,7 @@ module.exports = THREE; }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"../../vendor/VRControls":184,"../../vendor/VREffect":185,"three":36,"three/examples/js/loaders/ColladaLoader":37,"three/examples/js/loaders/DRACOLoader":38,"three/examples/js/loaders/GLTFLoader":39,"three/examples/js/loaders/MTLLoader":40,"three/examples/js/loaders/OBJLoader":41}],155:[function(_dereq_,module,exports){ +},{"../../vendor/VRControls":187,"../../vendor/VREffect":188,"three":39,"three/examples/js/loaders/ColladaLoader":40,"three/examples/js/loaders/DRACOLoader":41,"three/examples/js/loaders/GLTFLoader":42,"three/examples/js/loaders/MTLLoader":43,"three/examples/js/loaders/OBJLoader":44}],158:[function(_dereq_,module,exports){ var registerShader = _dereq_('../core/shader').registerShader; var THREE = _dereq_('../lib/three'); var utils = _dereq_('../utils/'); @@ -77808,14 +78132,14 @@ function getMaterialData (data, materialData) { return materialData; } -},{"../core/shader":115,"../lib/three":154,"../utils/":177}],156:[function(_dereq_,module,exports){ +},{"../core/shader":118,"../lib/three":157,"../utils/":180}],159:[function(_dereq_,module,exports){ _dereq_('./flat'); _dereq_('./standard'); _dereq_('./sdf'); _dereq_('./msdf'); _dereq_('./ios10hls'); -},{"./flat":155,"./ios10hls":157,"./msdf":158,"./sdf":159,"./standard":160}],157:[function(_dereq_,module,exports){ +},{"./flat":158,"./ios10hls":160,"./msdf":161,"./sdf":162,"./standard":163}],160:[function(_dereq_,module,exports){ var registerShader = _dereq_('../core/shader').registerShader; /** @@ -77850,7 +78174,7 @@ module.exports.Shader = registerShader('ios10hls', { }); -},{"../core/shader":115}],158:[function(_dereq_,module,exports){ +},{"../core/shader":118}],161:[function(_dereq_,module,exports){ var registerShader = _dereq_('../core/shader').registerShader; /** @@ -77918,7 +78242,7 @@ module.exports.Shader = registerShader('msdf', { ].join('\n') }); -},{"../core/shader":115}],159:[function(_dereq_,module,exports){ +},{"../core/shader":118}],162:[function(_dereq_,module,exports){ var registerShader = _dereq_('../core/shader').registerShader; /** @@ -78025,7 +78349,7 @@ module.exports.Shader = registerShader('sdf', { ].join('\n') }); -},{"../core/shader":115}],160:[function(_dereq_,module,exports){ +},{"../core/shader":118}],163:[function(_dereq_,module,exports){ var registerShader = _dereq_('../core/shader').registerShader; var THREE = _dereq_('../lib/three'); var utils = _dereq_('../utils/'); @@ -78212,11 +78536,11 @@ function getMaterialData (data, materialData) { return materialData; } -},{"../core/shader":115,"../lib/three":154,"../utils/":177}],161:[function(_dereq_,module,exports){ -var css = 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button{background:url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%20version%3D%221.1%22%20x%3D%220px%22%20y%3D%220px%22%20viewBox%3D%220%200%20100%20100%22%20enable-background%3D%22new%200%200%20100%20100%22%20xml%3Aspace%3D%22preserve%22%3E%3Cpath%20fill%3D%22%23000000%22%20d%3D%22M55.209%2C50l17.803-17.803c1.416-1.416%2C1.416-3.713%2C0-5.129c-1.416-1.417-3.713-1.417-5.129%2C0L50.08%2C44.872%20%20L32.278%2C27.069c-1.416-1.417-3.714-1.417-5.129%2C0c-1.417%2C1.416-1.417%2C3.713%2C0%2C5.129L44.951%2C50L27.149%2C67.803%20%20c-1.417%2C1.416-1.417%2C3.713%2C0%2C5.129c0.708%2C0.708%2C1.636%2C1.062%2C2.564%2C1.062c0.928%2C0%2C1.856-0.354%2C2.564-1.062L50.08%2C55.13l17.803%2C17.802%20%20c0.708%2C0.708%2C1.637%2C1.062%2C2.564%2C1.062s1.856-0.354%2C2.564-1.062c1.416-1.416%2C1.416-3.713%2C0-5.129L55.209%2C50z%22%3E%3C/path%3E%3C/svg%3E) no-repeat;border:none;height:50px;text-indent:-9999px;width:50px}.a-loader-title{background-color:rgba(0,0,0,.6);font-family:sans-serif,monospace;text-align:center;font-size:20px;height:50px;font-weight:300;line-height:50px;position:absolute;right:0;left:0;top:0;color:#fff}"; (_dereq_("browserify-css").createStyle(css, { "href": "src/style/aframe.css"})); module.exports = css; +},{"browserify-css":5}],165:[function(_dereq_,module,exports){ var css = ".rs-base{background-color:#333;color:#fafafa;border-radius:0;font:10px monospace;left:5px;line-height:1em;opacity:.85;overflow:hidden;padding:10px;position:fixed;top:5px;width:300px;z-index:10000}.rs-base div.hidden{display:none}.rs-base h1{color:#fff;cursor:pointer;font-size:1.4em;font-weight:300;margin:0 0 5px;padding:0}.rs-group{display:-webkit-box;display:-webkit-flex;display:flex;-webkit-flex-direction:column-reverse;flex-direction:column-reverse;margin-bottom:5px}.rs-group:last-child{margin-bottom:0}.rs-counter-base{align-items:center;display:-webkit-box;display:-webkit-flex;display:flex;height:10px;-webkit-justify-content:space-between;justify-content:space-between;margin:2px 0}.rs-counter-base.alarm{color:#b70000;text-shadow:0 0 0 #b70000,0 0 1px #fff,0 0 1px #fff,0 0 2px #fff,0 0 2px #fff,0 0 3px #fff,0 0 3px #fff,0 0 4px #fff,0 0 4px #fff}.rs-counter-id{font-weight:300;-webkit-box-ordinal-group:0;-webkit-order:0;order:0;width:54px}.rs-counter-value{font-weight:300;-webkit-box-ordinal-group:1;-webkit-order:1;order:1;text-align:right;width:35px}.rs-canvas{-webkit-box-ordinal-group:2;-webkit-order:2;order:2}@media (min-width:480px){.rs-base{left:20px;top:20px}}"; (_dereq_("browserify-css").createStyle(css, { "href": "src/style/rStats.css"})); module.exports = css; -},{"browserify-css":5}],163:[function(_dereq_,module,exports){ +},{"browserify-css":5}],166:[function(_dereq_,module,exports){ var constants = _dereq_('../constants/'); var registerSystem = _dereq_('../core/system').registerSystem; @@ -78490,7 +78814,7 @@ function removeDefaultCamera (sceneEl) { sceneEl.removeChild(defaultCamera); } -},{"../constants/":96,"../core/system":116}],164:[function(_dereq_,module,exports){ +},{"../constants/":99,"../core/system":119}],167:[function(_dereq_,module,exports){ var geometries = _dereq_('../core/geometry').geometries; var registerSystem = _dereq_('../core/system').registerSystem; var THREE = _dereq_('../lib/three'); @@ -78630,7 +78954,7 @@ function toBufferGeometry (geometry, doBuffer) { return bufferGeometry; } -},{"../core/geometry":106,"../core/system":116,"../lib/three":154}],165:[function(_dereq_,module,exports){ +},{"../core/geometry":109,"../core/system":119,"../lib/three":157}],168:[function(_dereq_,module,exports){ var registerSystem = _dereq_('../core/system').registerSystem; var THREE = _dereq_('../lib/three'); @@ -78658,7 +78982,7 @@ module.exports.System = registerSystem('gltf-model', { } }); -},{"../core/system":116,"../lib/three":154}],166:[function(_dereq_,module,exports){ +},{"../core/system":119,"../lib/three":157}],169:[function(_dereq_,module,exports){ _dereq_('./camera'); _dereq_('./geometry'); _dereq_('./gltf-model'); @@ -78667,7 +78991,7 @@ _dereq_('./material'); _dereq_('./shadow'); _dereq_('./tracked-controls'); -},{"./camera":163,"./geometry":164,"./gltf-model":165,"./light":167,"./material":168,"./shadow":169,"./tracked-controls":170}],167:[function(_dereq_,module,exports){ +},{"./camera":166,"./geometry":167,"./gltf-model":168,"./light":170,"./material":171,"./shadow":172,"./tracked-controls":173}],170:[function(_dereq_,module,exports){ var registerSystem = _dereq_('../core/system').registerSystem; var bind = _dereq_('../utils/bind'); var constants = _dereq_('../constants/'); @@ -78753,7 +79077,7 @@ module.exports.System = registerSystem('light', { } }); -},{"../constants/":96,"../core/system":116,"../utils/bind":171}],168:[function(_dereq_,module,exports){ +},{"../constants/":99,"../core/system":119,"../utils/bind":174}],171:[function(_dereq_,module,exports){ var registerSystem = _dereq_('../core/system').registerSystem; var THREE = _dereq_('../lib/three'); var utils = _dereq_('../utils/'); @@ -79158,7 +79482,7 @@ function fixVideoAttributes (videoEl) { return videoEl; } -},{"../core/system":116,"../lib/three":154,"../utils/":177,"../utils/material":178}],169:[function(_dereq_,module,exports){ +},{"../core/system":119,"../lib/three":157,"../utils/":180,"../utils/material":181}],172:[function(_dereq_,module,exports){ var registerSystem = _dereq_('../core/system').registerSystem; var THREE = _dereq_('../lib/three'); @@ -79206,7 +79530,7 @@ module.exports.System = registerSystem('shadow', { } }); -},{"../core/system":116,"../lib/three":154}],170:[function(_dereq_,module,exports){ +},{"../core/system":119,"../lib/three":157}],173:[function(_dereq_,module,exports){ var registerSystem = _dereq_('../core/system').registerSystem; var utils = _dereq_('../utils'); @@ -79220,7 +79544,7 @@ module.exports.System = registerSystem('tracked-controls', { this.controllers = []; - this.updateControllerList(navigator.getGamepads && navigator.getGamepads()); + this.updateControllerList(); this.throttledUpdateControllerList = utils.throttle(this.updateControllerList, 500, this); if (!navigator.getVRDisplays) { return; } @@ -79233,21 +79557,24 @@ module.exports.System = registerSystem('tracked-controls', { }, tick: function () { - var gamepads; - // Call getGamepads for Chrome. - gamepads = navigator.getGamepads && navigator.getGamepads(); - this.throttledUpdateControllerList(gamepads); + if (navigator.userAgent.indexOf('Chrome') !== -1) { + // Call getGamepads for Chrome for it to update. Not sure if needed in future. + navigator.getGamepads && navigator.getGamepads(); + } + this.throttledUpdateControllerList(); }, /** * Update controller list. */ - updateControllerList: function (gamepads) { + updateControllerList: function () { var controllers = this.controllers; var gamepad; + var gamepads; var i; var prevCount; + gamepads = navigator.getGamepads && navigator.getGamepads(); if (!gamepads) { return; } prevCount = controllers.length; @@ -79265,7 +79592,7 @@ module.exports.System = registerSystem('tracked-controls', { } }); -},{"../core/system":116,"../utils":177}],171:[function(_dereq_,module,exports){ +},{"../core/system":119,"../utils":180}],174:[function(_dereq_,module,exports){ /** * Faster version of Function.prototype.bind * @param {Function} fn - Function to wrap. @@ -79282,7 +79609,7 @@ module.exports = function bind (fn, ctx/* , arg1, arg2 */) { })(Array.prototype.slice.call(arguments, 2)); }; -},{}],172:[function(_dereq_,module,exports){ +},{}],175:[function(_dereq_,module,exports){ /* global THREE */ var debug = _dereq_('./debug'); var extend = _dereq_('object-assign'); @@ -79380,7 +79707,7 @@ module.exports.toVector3 = function (vec3) { return new THREE.Vector3(vec3.x, vec3.y, vec3.z); }; -},{"./debug":173,"object-assign":23}],173:[function(_dereq_,module,exports){ +},{"./debug":176,"object-assign":26}],176:[function(_dereq_,module,exports){ (function (process){ var debugLib = _dereq_('debug'); var extend = _dereq_('object-assign'); @@ -79477,7 +79804,7 @@ module.exports = debug; }).call(this,_dereq_('_process')) -},{"_process":6,"debug":199,"object-assign":23}],174:[function(_dereq_,module,exports){ +},{"_process":6,"debug":10,"object-assign":26}],177:[function(_dereq_,module,exports){ (function (process){ var vrDisplay; @@ -79616,7 +79943,7 @@ module.exports.PolyfillControls = function PolyfillControls (object) { }).call(this,_dereq_('_process')) -},{"_process":6}],175:[function(_dereq_,module,exports){ +},{"_process":6}],178:[function(_dereq_,module,exports){ /** * Split a delimited component property string (e.g., `material.color`) to an object * containing `component` name and `property` name. If there is no delimiter, just return the @@ -79678,7 +80005,7 @@ module.exports.setComponentProperty = function (el, name, value, delimiter) { el.setAttribute(name, value); }; -},{}],176:[function(_dereq_,module,exports){ +},{}],179:[function(_dereq_,module,exports){ module.exports = function forceCanvasResizeSafariMobile (canvasEl) { var width = canvasEl.style.width; var height = canvasEl.style.height; @@ -79694,7 +80021,7 @@ module.exports = function forceCanvasResizeSafariMobile (canvasEl) { }, 200); }; -},{}],177:[function(_dereq_,module,exports){ +},{}],180:[function(_dereq_,module,exports){ /* global location */ /* Centralized place to reference utilities since utils is exposed to the user. */ @@ -80021,7 +80348,7 @@ module.exports.findAllScenes = function (el) { // Must be at bottom to avoid circular dependency. module.exports.srcLoader = _dereq_('./src-loader'); -},{"./bind":171,"./coordinates":172,"./debug":173,"./device":174,"./entity":175,"./forceCanvasResizeSafariMobile":176,"./material":178,"./object-pool":179,"./split":180,"./src-loader":181,"./styleParser":182,"./tracked-controls":183,"deep-assign":10,"object-assign":23}],178:[function(_dereq_,module,exports){ +},{"./bind":174,"./coordinates":175,"./debug":176,"./device":177,"./entity":178,"./forceCanvasResizeSafariMobile":179,"./material":181,"./object-pool":182,"./split":183,"./src-loader":184,"./styleParser":185,"./tracked-controls":186,"deep-assign":12,"object-assign":26}],181:[function(_dereq_,module,exports){ var THREE = _dereq_('../lib/three'); var HLS_MIMETYPES = ['application/x-mpegurl', 'application/vnd.apple.mpegurl']; @@ -80176,7 +80503,7 @@ module.exports.isHLS = function (src, type) { return false; }; -},{"../lib/three":154}],179:[function(_dereq_,module,exports){ +},{"../lib/three":157}],182:[function(_dereq_,module,exports){ /* Adapted deePool by Kyle Simpson. MIT License: http://getify.mit-license.org @@ -80256,7 +80583,7 @@ function clearObject (obj) { } module.exports.clearObject = clearObject; -},{}],180:[function(_dereq_,module,exports){ +},{}],183:[function(_dereq_,module,exports){ /** * String split with cached result. */ @@ -80273,7 +80600,7 @@ module.exports.split = (function () { }; })(); -},{}],181:[function(_dereq_,module,exports){ +},{}],184:[function(_dereq_,module,exports){ /* global Image, XMLHttpRequest */ var debug = _dereq_('./debug'); @@ -80432,7 +80759,7 @@ module.exports = { validateCubemapSrc: validateCubemapSrc }; -},{"./debug":173}],182:[function(_dereq_,module,exports){ +},{"./debug":176}],185:[function(_dereq_,module,exports){ /** * Utils for parsing style-like strings (e.g., "primitive: box; width: 5; height: 4.5"). * Some code adapted from `style-attr` (https://github.com/joshwnj/style-attr) @@ -80585,7 +80912,7 @@ function styleStringify (obj) { function upperCase (str) { return str[1].toUpperCase(); } -},{}],183:[function(_dereq_,module,exports){ +},{}],186:[function(_dereq_,module,exports){ var DEFAULT_HANDEDNESS = _dereq_('../constants').DEFAULT_HANDEDNESS; var AXIS_LABELS = ['x', 'y', 'z', 'w']; var NUM_HANDS = 2; // Number of hands in a pair. Should always be 2. @@ -80765,7 +81092,7 @@ module.exports.onButtonEvent = function (id, evtName, component, hand) { } }; -},{"../constants":96}],184:[function(_dereq_,module,exports){ +},{"../constants":99}],187:[function(_dereq_,module,exports){ /** * @author dmarcos / https://github.com/dmarcos * @author mrdoob / http://mrdoob.com @@ -80943,7 +81270,7 @@ THREE.VRControls = function ( object, onError ) { }; -},{}],185:[function(_dereq_,module,exports){ +},{}],188:[function(_dereq_,module,exports){ /** * @author dmarcos / https://github.com/dmarcos * @author mrdoob / http://mrdoob.com @@ -81462,7 +81789,7 @@ THREE.VREffect = function( renderer, onError ) { }; -},{}],186:[function(_dereq_,module,exports){ +},{}],189:[function(_dereq_,module,exports){ /** * @author alteredq / http://alteredqualia.com/ * @@ -81510,7 +81837,7 @@ THREE.CopyShader = { }; -},{}],187:[function(_dereq_,module,exports){ +},{}],190:[function(_dereq_,module,exports){ /** * @author alteredq / http://alteredqualia.com/ */ @@ -81715,7 +82042,7 @@ Object.assign( THREE.Pass.prototype, { } ); -},{}],188:[function(_dereq_,module,exports){ +},{}],191:[function(_dereq_,module,exports){ /** * @author bhouston / http://clara.io/ * @@ -81781,7 +82108,7 @@ THREE.LuminosityHighPassShader = { }; -},{}],189:[function(_dereq_,module,exports){ +},{}],192:[function(_dereq_,module,exports){ /** * @author alteredq / http://alteredqualia.com/ */ @@ -81846,7 +82173,7 @@ THREE.RenderPass.prototype = Object.assign( Object.create( THREE.Pass.prototype } ); -},{}],190:[function(_dereq_,module,exports){ +},{}],193:[function(_dereq_,module,exports){ 'use strict'; /** @@ -82005,7 +82332,7 @@ THREE.SSAOPass.prototype.setSize = function( width, height ) { }; -},{}],191:[function(_dereq_,module,exports){ +},{}],194:[function(_dereq_,module,exports){ /** * @author alteredq / http://alteredqualia.com/ * @@ -82240,7 +82567,7 @@ THREE.SSAOShader = { }; -},{}],192:[function(_dereq_,module,exports){ +},{}],195:[function(_dereq_,module,exports){ /** * @author alteredq / http://alteredqualia.com/ * @@ -82296,7 +82623,7 @@ THREE.SepiaShader = { }; -},{}],193:[function(_dereq_,module,exports){ +},{}],196:[function(_dereq_,module,exports){ /** * @author alteredq / http://alteredqualia.com/ */ @@ -82365,7 +82692,7 @@ THREE.ShaderPass.prototype = Object.assign( Object.create( THREE.Pass.prototype } ); -},{}],194:[function(_dereq_,module,exports){ +},{}],197:[function(_dereq_,module,exports){ /** * @author spidersharma / http://eduperiment.com/ * @@ -82748,7 +83075,7 @@ THREE.UnrealBloomPass.prototype = Object.assign( Object.create( THREE.Pass.proto THREE.UnrealBloomPass.BlurDirectionX = new THREE.Vector2( 1.0, 0.0 ); THREE.UnrealBloomPass.BlurDirectionY = new THREE.Vector2( 0.0, 1.0 ); -},{}],195:[function(_dereq_,module,exports){ +},{}],198:[function(_dereq_,module,exports){ window.glStats = function () { var _rS = null; @@ -83009,7 +83336,7 @@ if (typeof module === 'object') { }; } -},{}],196:[function(_dereq_,module,exports){ +},{}],199:[function(_dereq_,module,exports){ // performance.now() polyfill from https://gist.github.com/paulirish/5438650 'use strict'; @@ -83464,7 +83791,7 @@ if (typeof module === 'object') { module.exports = window.rStats; } -},{}],197:[function(_dereq_,module,exports){ +},{}],200:[function(_dereq_,module,exports){ /* * Copyright 2015 Google Inc. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); @@ -83526,7 +83853,7 @@ Util.isLandscapeMode = function() { module.exports = Util; -},{}],198:[function(_dereq_,module,exports){ +},{}],201:[function(_dereq_,module,exports){ /* * Copyright 2015 Google Inc. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); @@ -83602,362 +83929,6 @@ function getWakeLock() { module.exports = getWakeLock(); -},{"./util.js":197}],199:[function(_dereq_,module,exports){ - -/** - * This is the web browser implementation of `debug()`. - * - * Expose `debug()` as the module. - */ - -exports = module.exports = _dereq_('./debug'); -exports.log = log; -exports.formatArgs = formatArgs; -exports.save = save; -exports.load = load; -exports.useColors = useColors; -exports.storage = 'undefined' != typeof chrome - && 'undefined' != typeof chrome.storage - ? chrome.storage.local - : localstorage(); - -/** - * Colors. - */ - -exports.colors = [ - 'lightseagreen', - 'forestgreen', - 'goldenrod', - 'dodgerblue', - 'darkorchid', - 'crimson' -]; - -/** - * Currently only WebKit-based Web Inspectors, Firefox >= v31, - * and the Firebug extension (any Firefox version) are known - * to support "%c" CSS customizations. - * - * TODO: add a `localStorage` variable to explicitly enable/disable colors - */ - -function useColors() { - // is webkit? http://stackoverflow.com/a/16459606/376773 - return ('WebkitAppearance' in document.documentElement.style) || - // is firebug? http://stackoverflow.com/a/398120/376773 - (window.console && (console.firebug || (console.exception && console.table))) || - // is firefox >= v31? - // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages - (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31); -} - -/** - * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default. - */ - -exports.formatters.j = function(v) { - return JSON.stringify(v); -}; - - -/** - * Colorize log arguments if enabled. - * - * @api public - */ - -function formatArgs() { - var args = arguments; - var useColors = this.useColors; - - args[0] = (useColors ? '%c' : '') - + this.namespace - + (useColors ? ' %c' : ' ') - + args[0] - + (useColors ? '%c ' : ' '); - - if (!useColors) return args; - - var c = 'color: ' + this.color; - args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1)); - - // the final "%c" is somewhat tricky, because there could be other - // arguments passed either before or after the %c, so we need to - // figure out the correct index to insert the CSS into - var index = 0; - var lastC = 0; - args[0].replace(/%[a-z%]/g, function(match) { - if ('%%' === match) return; - index++; - if ('%c' === match) { - // we only are interested in the *last* %c - // (the user may have provided their own) - lastC = index; - } - }); - - args.splice(lastC, 0, c); - return args; -} - -/** - * Invokes `console.log()` when available. - * No-op when `console.log` is not a "function". - * - * @api public - */ - -function log() { - // this hackery is required for IE8/9, where - // the `console.log` function doesn't have 'apply' - return 'object' === typeof console - && console.log - && Function.prototype.apply.call(console.log, console, arguments); -} - -/** - * Save `namespaces`. - * - * @param {String} namespaces - * @api private - */ - -function save(namespaces) { - try { - if (null == namespaces) { - exports.storage.removeItem('debug'); - } else { - exports.storage.debug = namespaces; - } - } catch(e) {} -} - -/** - * Load `namespaces`. - * - * @return {String} returns the previously persisted debug modes - * @api private - */ - -function load() { - var r; - try { - r = exports.storage.debug; - } catch(e) {} - return r; -} - -/** - * Enable namespaces listed in `localStorage.debug` initially. - */ - -exports.enable(load()); - -/** - * Localstorage attempts to return the localstorage. - * - * This is necessary because safari throws - * when a user disables cookies/localstorage - * and you attempt to access it. - * - * @return {LocalStorage} - * @api private - */ - -function localstorage(){ - try { - return window.localStorage; - } catch (e) {} -} - -},{"./debug":200}],200:[function(_dereq_,module,exports){ - -/** - * This is the common logic for both the Node.js and web browser - * implementations of `debug()`. - * - * Expose `debug()` as the module. - */ - -exports = module.exports = debug; -exports.coerce = coerce; -exports.disable = disable; -exports.enable = enable; -exports.enabled = enabled; - -/** - * The currently active debug mode names, and names to skip. - */ - -exports.names = []; -exports.skips = []; - -/** - * Map of special "%n" handling functions, for the debug "format" argument. - * - * Valid key names are a single, lowercased letter, i.e. "n". - */ - -exports.formatters = {}; - -/** - * Previously assigned color. - */ - -var prevColor = 0; - -/** - * Select a color. - * - * @return {Number} - * @api private - */ - -function selectColor() { - return exports.colors[prevColor++ % exports.colors.length]; -} - -/** - * Create a debugger with the given `namespace`. - * - * @param {String} namespace - * @return {Function} - * @api public - */ - -function debug(namespace) { - - // define the `disabled` version - function disabled() { - } - disabled.enabled = false; - - // define the `enabled` version - function enabled() { - - var self = enabled; - - // add the `color` if not set - if (null == self.useColors) self.useColors = exports.useColors(); - if (null == self.color && self.useColors) self.color = selectColor(); - - var args = Array.prototype.slice.call(arguments); - - args[0] = exports.coerce(args[0]); - - if ('string' !== typeof args[0]) { - // anything else let's inspect with %o - args = ['%o'].concat(args); - } - - // apply any `formatters` transformations - var index = 0; - args[0] = args[0].replace(/%([a-z%])/g, function(match, format) { - // if we encounter an escaped % then don't increase the array index - if (match === '%%') return match; - index++; - var formatter = exports.formatters[format]; - if ('function' === typeof formatter) { - var val = args[index]; - match = formatter.call(self, val); - - // now we need to remove `args[index]` since it's inlined in the `format` - args.splice(index, 1); - index--; - } - return match; - }); - - if ('function' === typeof exports.formatArgs) { - args = exports.formatArgs.apply(self, args); - } - var logFn = enabled.log || exports.log || console.log.bind(console); - logFn.apply(self, args); - } - enabled.enabled = true; - - var fn = exports.enabled(namespace) ? enabled : disabled; - - fn.namespace = namespace; - - return fn; -} - -/** - * Enables a debug mode by namespaces. This can include modes - * separated by a colon and wildcards. - * - * @param {String} namespaces - * @api public - */ - -function enable(namespaces) { - exports.save(namespaces); - - var split = (namespaces || '').split(/[\s,]+/); - var len = split.length; - - for (var i = 0; i < len; i++) { - if (!split[i]) continue; // ignore empty strings - namespaces = split[i].replace(/\*/g, '.*?'); - if (namespaces[0] === '-') { - exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$')); - } else { - exports.names.push(new RegExp('^' + namespaces + '$')); - } - } -} - -/** - * Disable debug output. - * - * @api public - */ - -function disable() { - exports.enable(''); -} - -/** - * Returns true if the given mode name is enabled, false otherwise. - * - * @param {String} name - * @return {Boolean} - * @api public - */ - -function enabled(name) { - var i, len; - for (i = 0, len = exports.skips.length; i < len; i++) { - if (exports.skips[i].test(name)) { - return false; - } - } - for (i = 0, len = exports.names.length; i < len; i++) { - if (exports.names[i].test(name)) { - return true; - } - } - return false; -} - -/** - * Coerce `val`. - * - * @param {Mixed} val - * @return {Mixed} - * @api private - */ - -function coerce(val) { - if (val instanceof Error) return val.stack || val.message; - return val; -} - -},{}],201:[function(_dereq_,module,exports){ -/*! 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This\n // prevents accidentally sending in a number that would\n // be interpretted as a start offset.\n return typeof encoding === 'string'\n ? createBuffer(that, size).fill(fill, encoding)\n : createBuffer(that, size).fill(fill)\n }\n return createBuffer(that, size)\n}\n\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\nBuffer.alloc = function (size, fill, encoding) {\n return alloc(null, size, fill, encoding)\n}\n\nfunction allocUnsafe (that, size) {\n assertSize(size)\n that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)\n if (!Buffer.TYPED_ARRAY_SUPPORT) {\n for (var i = 0; i < size; ++i) {\n that[i] = 0\n }\n }\n return that\n}\n\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\nBuffer.allocUnsafe = function (size) {\n return allocUnsafe(null, size)\n}\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\nBuffer.allocUnsafeSlow = function (size) {\n return allocUnsafe(null, size)\n}\n\nfunction fromString (that, string, encoding) {\n if (typeof encoding !== 'string' || encoding === '') {\n encoding = 'utf8'\n }\n\n if (!Buffer.isEncoding(encoding)) {\n throw new TypeError('\"encoding\" must be a valid string encoding')\n }\n\n var length = byteLength(string, encoding) | 0\n that = createBuffer(that, length)\n\n var actual = that.write(string, encoding)\n\n if (actual !== length) {\n // Writing a hex string, for example, that contains invalid characters will\n // cause everything after the first invalid character to be ignored. (e.g.\n // 'abxxcd' will be treated as 'ab')\n that = that.slice(0, actual)\n }\n\n return that\n}\n\nfunction fromArrayLike (that, array) {\n var length = array.length < 0 ? 0 : checked(array.length) | 0\n that = createBuffer(that, length)\n for (var i = 0; i < length; i += 1) {\n that[i] = array[i] & 255\n }\n return that\n}\n\nfunction fromArrayBuffer (that, array, byteOffset, length) {\n array.byteLength // this throws if `array` is not a valid ArrayBuffer\n\n if (byteOffset < 0 || array.byteLength < byteOffset) {\n throw new RangeError('\\'offset\\' is out of bounds')\n }\n\n if (array.byteLength < byteOffset + (length || 0)) {\n throw new RangeError('\\'length\\' is out of bounds')\n }\n\n if (byteOffset === undefined && length === undefined) {\n array = new Uint8Array(array)\n } else if (length === undefined) {\n array = new Uint8Array(array, byteOffset)\n } else {\n array = new Uint8Array(array, byteOffset, length)\n }\n\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n // Return an augmented `Uint8Array` instance, for best performance\n that = array\n that.__proto__ = Buffer.prototype\n } else {\n // Fallback: Return an object instance of the Buffer class\n that = fromArrayLike(that, array)\n }\n return that\n}\n\nfunction fromObject (that, obj) {\n if (Buffer.isBuffer(obj)) {\n var len = checked(obj.length) | 0\n that = createBuffer(that, len)\n\n if (that.length === 0) {\n return that\n }\n\n obj.copy(that, 0, 0, len)\n return that\n }\n\n if (obj) {\n if ((typeof ArrayBuffer !== 'undefined' &&\n obj.buffer instanceof ArrayBuffer) || 'length' in obj) {\n if (typeof obj.length !== 'number' || isnan(obj.length)) {\n return createBuffer(that, 0)\n }\n return fromArrayLike(that, obj)\n }\n\n if (obj.type === 'Buffer' && isArray(obj.data)) {\n return fromArrayLike(that, obj.data)\n }\n }\n\n throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')\n}\n\nfunction checked (length) {\n // Note: cannot use `length < kMaxLength()` here because that fails when\n // length is NaN (which is otherwise coerced to zero.)\n if (length >= kMaxLength()) {\n throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n 'size: 0x' + kMaxLength().toString(16) + ' bytes')\n }\n return length | 0\n}\n\nfunction SlowBuffer (length) {\n if (+length != length) { // eslint-disable-line eqeqeq\n length = 0\n }\n return Buffer.alloc(+length)\n}\n\nBuffer.isBuffer = function isBuffer (b) {\n return !!(b != null && b._isBuffer)\n}\n\nBuffer.compare = function compare (a, b) {\n if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n throw new TypeError('Arguments must be Buffers')\n }\n\n if (a === b) return 0\n\n var x = a.length\n var y = b.length\n\n for (var i = 0, len = Math.min(x, y); i < len; ++i) {\n if (a[i] !== b[i]) {\n x = a[i]\n y = b[i]\n break\n }\n }\n\n if (x < y) return -1\n if (y < x) return 1\n return 0\n}\n\nBuffer.isEncoding = function isEncoding (encoding) {\n switch (String(encoding).toLowerCase()) {\n case 'hex':\n case 'utf8':\n case 'utf-8':\n case 'ascii':\n case 'latin1':\n case 'binary':\n case 'base64':\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return true\n default:\n return false\n }\n}\n\nBuffer.concat = function concat (list, length) {\n if (!isArray(list)) {\n throw new TypeError('\"list\" argument must be an Array of Buffers')\n }\n\n if (list.length === 0) {\n return Buffer.alloc(0)\n }\n\n var i\n if (length === undefined) {\n length = 0\n for (i = 0; i < list.length; ++i) {\n length += list[i].length\n }\n }\n\n var buffer = Buffer.allocUnsafe(length)\n var pos = 0\n for (i = 0; i < list.length; ++i) {\n var buf = list[i]\n if (!Buffer.isBuffer(buf)) {\n throw new TypeError('\"list\" argument must be an Array of Buffers')\n }\n buf.copy(buffer, pos)\n pos += buf.length\n }\n return buffer\n}\n\nfunction byteLength (string, encoding) {\n if (Buffer.isBuffer(string)) {\n return string.length\n }\n if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&\n (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {\n return string.byteLength\n }\n if (typeof string !== 'string') {\n string = '' + string\n }\n\n var len = string.length\n if (len === 0) return 0\n\n // Use a for loop to avoid recursion\n var loweredCase = false\n for (;;) {\n switch (encoding) {\n case 'ascii':\n case 'latin1':\n case 'binary':\n return len\n case 'utf8':\n case 'utf-8':\n case undefined:\n return utf8ToBytes(string).length\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return len * 2\n case 'hex':\n return len >>> 1\n case 'base64':\n return base64ToBytes(string).length\n default:\n if (loweredCase) return utf8ToBytes(string).length // assume utf8\n encoding = ('' + encoding).toLowerCase()\n loweredCase = true\n }\n }\n}\nBuffer.byteLength = byteLength\n\nfunction slowToString (encoding, start, end) {\n var loweredCase = false\n\n // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n // property of a typed array.\n\n // This behaves neither like String nor Uint8Array in that we set start/end\n // to their upper/lower bounds if the value passed is out of range.\n // undefined is handled specially as per ECMA-262 6th Edition,\n // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n if (start === undefined || start < 0) {\n start = 0\n }\n // Return early if start > this.length. Done here to prevent potential uint32\n // coercion fail below.\n if (start > this.length) {\n return ''\n }\n\n if (end === undefined || end > this.length) {\n end = this.length\n }\n\n if (end <= 0) {\n return ''\n }\n\n // Force coersion to uint32. This will also coerce falsey/NaN values to 0.\n end >>>= 0\n start >>>= 0\n\n if (end <= start) {\n return ''\n }\n\n if (!encoding) encoding = 'utf8'\n\n while (true) {\n switch (encoding) {\n case 'hex':\n return hexSlice(this, start, end)\n\n case 'utf8':\n case 'utf-8':\n return utf8Slice(this, start, end)\n\n case 'ascii':\n return asciiSlice(this, start, end)\n\n case 'latin1':\n case 'binary':\n return latin1Slice(this, start, end)\n\n case 'base64':\n return base64Slice(this, start, end)\n\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return utf16leSlice(this, start, end)\n\n default:\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n encoding = (encoding + '').toLowerCase()\n loweredCase = true\n }\n }\n}\n\n// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect\n// Buffer instances.\nBuffer.prototype._isBuffer = true\n\nfunction swap (b, n, m) {\n var i = b[n]\n b[n] = b[m]\n b[m] = i\n}\n\nBuffer.prototype.swap16 = function swap16 () {\n var len = this.length\n if (len % 2 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 16-bits')\n }\n for (var i = 0; i < len; i += 2) {\n swap(this, i, i + 1)\n }\n return this\n}\n\nBuffer.prototype.swap32 = function swap32 () {\n var len = this.length\n if (len % 4 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 32-bits')\n }\n for (var i = 0; i < len; i += 4) {\n swap(this, i, i + 3)\n swap(this, i + 1, i + 2)\n }\n return this\n}\n\nBuffer.prototype.swap64 = function swap64 () {\n var len = this.length\n if (len % 8 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 64-bits')\n }\n for (var i = 0; i < len; i += 8) {\n swap(this, i, i + 7)\n swap(this, i + 1, i + 6)\n swap(this, i + 2, i + 5)\n swap(this, i + 3, i + 4)\n }\n return this\n}\n\nBuffer.prototype.toString = function toString () {\n var length = this.length | 0\n if (length === 0) return ''\n if (arguments.length === 0) return utf8Slice(this, 0, length)\n return slowToString.apply(this, arguments)\n}\n\nBuffer.prototype.equals = function equals (b) {\n if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n if (this === b) return true\n return Buffer.compare(this, b) === 0\n}\n\nBuffer.prototype.inspect = function inspect () {\n var str = ''\n var max = exports.INSPECT_MAX_BYTES\n if (this.length > 0) {\n str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')\n if (this.length > max) str += ' ... '\n }\n return ''\n}\n\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n if (!Buffer.isBuffer(target)) {\n throw new TypeError('Argument must be a Buffer')\n }\n\n if (start === undefined) {\n start = 0\n }\n if (end === undefined) {\n end = target ? target.length : 0\n }\n if (thisStart === undefined) {\n thisStart = 0\n }\n if (thisEnd === undefined) {\n thisEnd = this.length\n }\n\n if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n throw new RangeError('out of range index')\n }\n\n if (thisStart >= thisEnd && start >= end) {\n return 0\n }\n if (thisStart >= thisEnd) {\n return -1\n }\n if (start >= end) {\n return 1\n }\n\n start >>>= 0\n end >>>= 0\n thisStart >>>= 0\n thisEnd >>>= 0\n\n if (this === target) return 0\n\n var x = thisEnd - thisStart\n var y = end - start\n var len = Math.min(x, y)\n\n var thisCopy = this.slice(thisStart, thisEnd)\n var targetCopy = target.slice(start, end)\n\n for (var i = 0; i < len; ++i) {\n if (thisCopy[i] !== targetCopy[i]) {\n x = thisCopy[i]\n y = targetCopy[i]\n break\n }\n }\n\n if (x < y) return -1\n if (y < x) return 1\n return 0\n}\n\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n // Empty buffer means no match\n if (buffer.length === 0) return -1\n\n // Normalize byteOffset\n if (typeof byteOffset === 'string') {\n encoding = byteOffset\n byteOffset = 0\n } else if (byteOffset > 0x7fffffff) {\n byteOffset = 0x7fffffff\n } else if (byteOffset < -0x80000000) {\n byteOffset = -0x80000000\n }\n byteOffset = +byteOffset // Coerce to Number.\n if (isNaN(byteOffset)) {\n // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n byteOffset = dir ? 0 : (buffer.length - 1)\n }\n\n // Normalize byteOffset: negative offsets start from the end of the buffer\n if (byteOffset < 0) byteOffset = buffer.length + byteOffset\n if (byteOffset >= buffer.length) {\n if (dir) return -1\n else byteOffset = buffer.length - 1\n } else if (byteOffset < 0) {\n if (dir) byteOffset = 0\n else return -1\n }\n\n // Normalize val\n if (typeof val === 'string') {\n val = Buffer.from(val, encoding)\n }\n\n // Finally, search either indexOf (if dir is true) or lastIndexOf\n if (Buffer.isBuffer(val)) {\n // Special case: looking for empty string/buffer always fails\n if (val.length === 0) {\n return -1\n }\n return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n } else if (typeof val === 'number') {\n val = val & 0xFF // Search for a byte value [0-255]\n if (Buffer.TYPED_ARRAY_SUPPORT &&\n typeof Uint8Array.prototype.indexOf === 'function') {\n if (dir) {\n return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n } else {\n return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n }\n }\n return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)\n }\n\n throw new TypeError('val must be string, number or Buffer')\n}\n\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n var indexSize = 1\n var arrLength = arr.length\n var valLength = val.length\n\n if (encoding !== undefined) {\n encoding = String(encoding).toLowerCase()\n if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n encoding === 'utf16le' || encoding === 'utf-16le') {\n if (arr.length < 2 || val.length < 2) {\n return -1\n }\n indexSize = 2\n arrLength /= 2\n valLength /= 2\n byteOffset /= 2\n }\n }\n\n function read (buf, i) {\n if (indexSize === 1) {\n return buf[i]\n } else {\n return buf.readUInt16BE(i * indexSize)\n }\n }\n\n var i\n if (dir) {\n var foundIndex = -1\n for (i = byteOffset; i < arrLength; i++) {\n if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n if (foundIndex === -1) foundIndex = i\n if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n } else {\n if (foundIndex !== -1) i -= i - foundIndex\n foundIndex = -1\n }\n }\n } else {\n if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\n for (i = byteOffset; i >= 0; i--) {\n var found = true\n for (var j = 0; j < valLength; j++) {\n if (read(arr, i + j) !== read(val, j)) {\n found = false\n break\n }\n }\n if (found) return i\n }\n }\n\n return -1\n}\n\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n return this.indexOf(val, byteOffset, encoding) !== -1\n}\n\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n}\n\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n}\n\nfunction hexWrite (buf, string, offset, length) {\n offset = Number(offset) || 0\n var remaining = buf.length - offset\n if (!length) {\n length = remaining\n } else {\n length = Number(length)\n if (length > remaining) {\n length = remaining\n }\n }\n\n // must be an even number of digits\n var strLen = string.length\n if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')\n\n if (length > strLen / 2) {\n length = strLen / 2\n }\n for (var i = 0; i < length; ++i) {\n var parsed = parseInt(string.substr(i * 2, 2), 16)\n if (isNaN(parsed)) return i\n buf[offset + i] = parsed\n }\n return i\n}\n\nfunction utf8Write (buf, string, offset, length) {\n return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nfunction asciiWrite (buf, string, offset, length) {\n return blitBuffer(asciiToBytes(string), buf, offset, length)\n}\n\nfunction latin1Write (buf, string, offset, length) {\n return asciiWrite(buf, string, offset, length)\n}\n\nfunction base64Write (buf, string, offset, length) {\n return blitBuffer(base64ToBytes(string), buf, offset, length)\n}\n\nfunction ucs2Write (buf, string, offset, length) {\n return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nBuffer.prototype.write = function write (string, offset, length, encoding) {\n // Buffer#write(string)\n if (offset === undefined) {\n encoding = 'utf8'\n length = this.length\n offset = 0\n // Buffer#write(string, encoding)\n } else if (length === undefined && typeof offset === 'string') {\n encoding = offset\n length = this.length\n offset = 0\n // Buffer#write(string, offset[, length][, encoding])\n } else if (isFinite(offset)) {\n offset = offset | 0\n if (isFinite(length)) {\n length = length | 0\n if (encoding === undefined) encoding = 'utf8'\n } else {\n encoding = length\n length = undefined\n }\n // legacy write(string, encoding, offset, length) - remove in v0.13\n } else {\n throw new Error(\n 'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n )\n }\n\n var remaining = this.length - offset\n if (length === undefined || length > remaining) length = remaining\n\n if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n throw new RangeError('Attempt to write outside buffer bounds')\n }\n\n if (!encoding) encoding = 'utf8'\n\n var loweredCase = false\n for (;;) {\n switch (encoding) {\n case 'hex':\n return hexWrite(this, string, offset, length)\n\n case 'utf8':\n case 'utf-8':\n return utf8Write(this, string, offset, length)\n\n case 'ascii':\n return asciiWrite(this, string, offset, length)\n\n case 'latin1':\n case 'binary':\n return latin1Write(this, string, offset, length)\n\n case 'base64':\n // Warning: maxLength not taken into account in base64Write\n return base64Write(this, string, offset, length)\n\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return ucs2Write(this, string, offset, length)\n\n default:\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n encoding = ('' + encoding).toLowerCase()\n loweredCase = true\n }\n }\n}\n\nBuffer.prototype.toJSON = function toJSON () {\n return {\n type: 'Buffer',\n data: Array.prototype.slice.call(this._arr || this, 0)\n }\n}\n\nfunction base64Slice (buf, start, end) {\n if (start === 0 && end === buf.length) {\n return base64.fromByteArray(buf)\n } else {\n return base64.fromByteArray(buf.slice(start, end))\n }\n}\n\nfunction utf8Slice (buf, start, end) {\n end = Math.min(buf.length, end)\n var res = []\n\n var i = start\n while (i < end) {\n var firstByte = buf[i]\n var codePoint = null\n var bytesPerSequence = (firstByte > 0xEF) ? 4\n : (firstByte > 0xDF) ? 3\n : (firstByte > 0xBF) ? 2\n : 1\n\n if (i + bytesPerSequence <= end) {\n var secondByte, thirdByte, fourthByte, tempCodePoint\n\n switch (bytesPerSequence) {\n case 1:\n if (firstByte < 0x80) {\n codePoint = firstByte\n }\n break\n case 2:\n secondByte = buf[i + 1]\n if ((secondByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\n if (tempCodePoint > 0x7F) {\n codePoint = tempCodePoint\n }\n }\n break\n case 3:\n secondByte = buf[i + 1]\n thirdByte = buf[i + 2]\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\n if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n codePoint = tempCodePoint\n }\n }\n break\n case 4:\n secondByte = buf[i + 1]\n thirdByte = buf[i + 2]\n fourthByte = buf[i + 3]\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\n if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n codePoint = tempCodePoint\n }\n }\n }\n }\n\n if (codePoint === null) {\n // we did not generate a valid codePoint so insert a\n // replacement char (U+FFFD) and advance only 1 byte\n codePoint = 0xFFFD\n bytesPerSequence = 1\n } else if (codePoint > 0xFFFF) {\n // encode to utf16 (surrogate pair dance)\n codePoint -= 0x10000\n res.push(codePoint >>> 10 & 0x3FF | 0xD800)\n codePoint = 0xDC00 | codePoint & 0x3FF\n }\n\n res.push(codePoint)\n i += bytesPerSequence\n }\n\n return decodeCodePointsArray(res)\n}\n\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\nvar MAX_ARGUMENTS_LENGTH = 0x1000\n\nfunction decodeCodePointsArray (codePoints) {\n var len = codePoints.length\n if (len <= MAX_ARGUMENTS_LENGTH) {\n return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n }\n\n // Decode in chunks to avoid \"call stack size exceeded\".\n var res = ''\n var i = 0\n while (i < len) {\n res += String.fromCharCode.apply(\n String,\n codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n )\n }\n return res\n}\n\nfunction asciiSlice (buf, start, end) {\n var ret = ''\n end = Math.min(buf.length, end)\n\n for (var i = start; i < end; ++i) {\n ret += String.fromCharCode(buf[i] & 0x7F)\n }\n return ret\n}\n\nfunction latin1Slice (buf, start, end) {\n var ret = ''\n end = Math.min(buf.length, end)\n\n for (var i = start; i < end; ++i) {\n ret += String.fromCharCode(buf[i])\n }\n return ret\n}\n\nfunction hexSlice (buf, start, end) {\n var len = buf.length\n\n if (!start || start < 0) start = 0\n if (!end || end < 0 || end > len) end = len\n\n var out = ''\n for (var i = start; i < end; ++i) {\n out += toHex(buf[i])\n }\n return out\n}\n\nfunction utf16leSlice (buf, start, end) {\n var bytes = buf.slice(start, end)\n var res = ''\n for (var i = 0; i < bytes.length; i += 2) {\n res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)\n }\n return res\n}\n\nBuffer.prototype.slice = function slice (start, end) {\n var len = this.length\n start = ~~start\n end = end === undefined ? len : ~~end\n\n if (start < 0) {\n start += len\n if (start < 0) start = 0\n } else if (start > len) {\n start = len\n }\n\n if (end < 0) {\n end += len\n if (end < 0) end = 0\n } else if (end > len) {\n end = len\n }\n\n if (end < start) end = start\n\n var newBuf\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n newBuf = this.subarray(start, end)\n newBuf.__proto__ = Buffer.prototype\n } else {\n var sliceLen = end - start\n newBuf = new Buffer(sliceLen, undefined)\n for (var i = 0; i < sliceLen; ++i) {\n newBuf[i] = this[i + start]\n }\n }\n\n return newBuf\n}\n\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\nfunction checkOffset (offset, ext, length) {\n if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n}\n\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n var val = this[offset]\n var mul = 1\n var i = 0\n while (++i < byteLength && (mul *= 0x100)) {\n val += this[offset + i] * mul\n }\n\n return val\n}\n\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) {\n checkOffset(offset, byteLength, this.length)\n }\n\n var val = this[offset + --byteLength]\n var mul = 1\n while (byteLength > 0 && (mul *= 0x100)) {\n val += this[offset + --byteLength] * mul\n }\n\n return val\n}\n\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 1, this.length)\n return this[offset]\n}\n\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n return this[offset] | (this[offset + 1] << 8)\n}\n\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n return (this[offset] << 8) | this[offset + 1]\n}\n\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return ((this[offset]) |\n (this[offset + 1] << 8) |\n (this[offset + 2] << 16)) +\n (this[offset + 3] * 0x1000000)\n}\n\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset] * 0x1000000) +\n ((this[offset + 1] << 16) |\n (this[offset + 2] << 8) |\n this[offset + 3])\n}\n\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n var val = this[offset]\n var mul = 1\n var i = 0\n while (++i < byteLength && (mul *= 0x100)) {\n val += this[offset + i] * mul\n }\n mul *= 0x80\n\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n return val\n}\n\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n var i = byteLength\n var mul = 1\n var val = this[offset + --i]\n while (i > 0 && (mul *= 0x100)) {\n val += this[offset + --i] * mul\n }\n mul *= 0x80\n\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n return val\n}\n\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 1, this.length)\n if (!(this[offset] & 0x80)) return (this[offset])\n return ((0xff - this[offset] + 1) * -1)\n}\n\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n var val = this[offset] | (this[offset + 1] << 8)\n return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n var val = this[offset + 1] | (this[offset] << 8)\n return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset]) |\n (this[offset + 1] << 8) |\n (this[offset + 2] << 16) |\n (this[offset + 3] << 24)\n}\n\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset] << 24) |\n (this[offset + 1] << 16) |\n (this[offset + 2] << 8) |\n (this[offset + 3])\n}\n\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n return ieee754.read(this, offset, true, 23, 4)\n}\n\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n return ieee754.read(this, offset, false, 23, 4)\n}\n\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 8, this.length)\n return ieee754.read(this, offset, true, 52, 8)\n}\n\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 8, this.length)\n return ieee754.read(this, offset, false, 52, 8)\n}\n\nfunction checkInt (buf, value, offset, ext, max, min) {\n if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\n}\n\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) {\n var maxBytes = Math.pow(2, 8 * byteLength) - 1\n checkInt(this, value, offset, byteLength, maxBytes, 0)\n }\n\n var mul = 1\n var i = 0\n this[offset] = value & 0xFF\n while (++i < byteLength && (mul *= 0x100)) {\n this[offset + i] = (value / mul) & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) {\n var maxBytes = Math.pow(2, 8 * byteLength) - 1\n checkInt(this, value, offset, byteLength, maxBytes, 0)\n }\n\n var i = byteLength - 1\n var mul = 1\n this[offset + i] = value & 0xFF\n while (--i >= 0 && (mul *= 0x100)) {\n this[offset + i] = (value / mul) & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\n if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n this[offset] = (value & 0xff)\n return offset + 1\n}\n\nfunction objectWriteUInt16 (buf, value, offset, littleEndian) {\n if (value < 0) value = 0xffff + value + 1\n for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {\n buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>\n (littleEndian ? i : 1 - i) * 8\n }\n}\n\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n } else {\n objectWriteUInt16(this, value, offset, true)\n }\n return offset + 2\n}\n\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 8)\n this[offset + 1] = (value & 0xff)\n } else {\n objectWriteUInt16(this, value, offset, false)\n }\n return offset + 2\n}\n\nfunction objectWriteUInt32 (buf, value, offset, littleEndian) {\n if (value < 0) value = 0xffffffff + value + 1\n for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {\n buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff\n }\n}\n\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset + 3] = (value >>> 24)\n this[offset + 2] = (value >>> 16)\n this[offset + 1] = (value >>> 8)\n this[offset] = (value & 0xff)\n } else {\n objectWriteUInt32(this, value, offset, true)\n }\n return offset + 4\n}\n\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 24)\n this[offset + 1] = (value >>> 16)\n this[offset + 2] = (value >>> 8)\n this[offset + 3] = (value & 0xff)\n } else {\n objectWriteUInt32(this, value, offset, false)\n }\n return offset + 4\n}\n\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) {\n var limit = Math.pow(2, 8 * byteLength - 1)\n\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\n }\n\n var i = 0\n var mul = 1\n var sub = 0\n this[offset] = value & 0xFF\n while (++i < byteLength && (mul *= 0x100)) {\n if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n sub = 1\n }\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) {\n var limit = Math.pow(2, 8 * byteLength - 1)\n\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\n }\n\n var i = byteLength - 1\n var mul = 1\n var sub = 0\n this[offset + i] = value & 0xFF\n while (--i >= 0 && (mul *= 0x100)) {\n if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n sub = 1\n }\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\n if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n if (value < 0) value = 0xff + value + 1\n this[offset] = (value & 0xff)\n return offset + 1\n}\n\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n } else {\n objectWriteUInt16(this, value, offset, true)\n }\n return offset + 2\n}\n\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 8)\n this[offset + 1] = (value & 0xff)\n } else {\n objectWriteUInt16(this, value, offset, false)\n }\n return offset + 2\n}\n\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n this[offset + 2] = (value >>> 16)\n this[offset + 3] = (value >>> 24)\n } else {\n objectWriteUInt32(this, value, offset, true)\n }\n return offset + 4\n}\n\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n if (value < 0) value = 0xffffffff + value + 1\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 24)\n this[offset + 1] = (value >>> 16)\n this[offset + 2] = (value >>> 8)\n this[offset + 3] = (value & 0xff)\n } else {\n objectWriteUInt32(this, value, offset, false)\n }\n return offset + 4\n}\n\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\n if (offset < 0) throw new RangeError('Index out of range')\n}\n\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\n if (!noAssert) {\n checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\n }\n ieee754.write(buf, value, offset, littleEndian, 23, 4)\n return offset + 4\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\n return writeFloat(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\n return writeFloat(this, value, offset, false, noAssert)\n}\n\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\n if (!noAssert) {\n checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\n }\n ieee754.write(buf, value, offset, littleEndian, 52, 8)\n return offset + 8\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\n return writeDouble(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\n return writeDouble(this, value, offset, false, noAssert)\n}\n\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\n if (!start) start = 0\n if (!end && end !== 0) end = this.length\n if (targetStart >= target.length) targetStart = target.length\n if (!targetStart) targetStart = 0\n if (end > 0 && end < start) end = start\n\n // Copy 0 bytes; we're done\n if (end === start) return 0\n if (target.length === 0 || this.length === 0) return 0\n\n // Fatal error conditions\n if (targetStart < 0) {\n throw new RangeError('targetStart out of bounds')\n }\n if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')\n if (end < 0) throw new RangeError('sourceEnd out of bounds')\n\n // Are we oob?\n if (end > this.length) end = this.length\n if (target.length - targetStart < end - start) {\n end = target.length - targetStart + start\n }\n\n var len = end - start\n var i\n\n if (this === target && start < targetStart && targetStart < end) {\n // descending copy from end\n for (i = len - 1; i >= 0; --i) {\n target[i + targetStart] = this[i + start]\n }\n } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {\n // ascending copy from start\n for (i = 0; i < len; ++i) {\n target[i + targetStart] = this[i + start]\n }\n } else {\n Uint8Array.prototype.set.call(\n target,\n this.subarray(start, start + len),\n targetStart\n )\n }\n\n return len\n}\n\n// Usage:\n// buffer.fill(number[, offset[, end]])\n// buffer.fill(buffer[, offset[, end]])\n// buffer.fill(string[, offset[, end]][, encoding])\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\n // Handle string cases:\n if (typeof val === 'string') {\n if (typeof start === 'string') {\n encoding = start\n start = 0\n end = this.length\n } else if (typeof end === 'string') {\n encoding = end\n end = this.length\n }\n if (val.length === 1) {\n var code = val.charCodeAt(0)\n if (code < 256) {\n val = code\n }\n }\n if (encoding !== undefined && typeof encoding !== 'string') {\n throw new TypeError('encoding must be a string')\n }\n if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n throw new TypeError('Unknown encoding: ' + encoding)\n }\n } else if (typeof val === 'number') {\n val = val & 255\n }\n\n // Invalid ranges are not set to a default, so can range check early.\n if (start < 0 || this.length < start || this.length < end) {\n throw new RangeError('Out of range index')\n }\n\n if (end <= start) {\n return this\n }\n\n start = start >>> 0\n end = end === undefined ? this.length : end >>> 0\n\n if (!val) val = 0\n\n var i\n if (typeof val === 'number') {\n for (i = start; i < end; ++i) {\n this[i] = val\n }\n } else {\n var bytes = Buffer.isBuffer(val)\n ? val\n : utf8ToBytes(new Buffer(val, encoding).toString())\n var len = bytes.length\n for (i = 0; i < end - start; ++i) {\n this[i + start] = bytes[i % len]\n }\n }\n\n return this\n}\n\n// HELPER FUNCTIONS\n// ================\n\nvar INVALID_BASE64_RE = /[^+\\/0-9A-Za-z-_]/g\n\nfunction base64clean (str) {\n // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n str = stringtrim(str).replace(INVALID_BASE64_RE, '')\n // Node converts strings with length < 2 to ''\n if (str.length < 2) return ''\n // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n while (str.length % 4 !== 0) {\n str = str + '='\n }\n return str\n}\n\nfunction stringtrim (str) {\n if (str.trim) return str.trim()\n return str.replace(/^\\s+|\\s+$/g, '')\n}\n\nfunction toHex (n) {\n if (n < 16) return '0' + n.toString(16)\n return n.toString(16)\n}\n\nfunction utf8ToBytes (string, units) {\n units = units || Infinity\n var codePoint\n var length = string.length\n var leadSurrogate = null\n var bytes = []\n\n for (var i = 0; i < length; ++i) {\n codePoint = string.charCodeAt(i)\n\n // is surrogate component\n if (codePoint > 0xD7FF && codePoint < 0xE000) {\n // last char was a lead\n if (!leadSurrogate) {\n // no lead yet\n if (codePoint > 0xDBFF) {\n // unexpected trail\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n continue\n } else if (i + 1 === length) {\n // unpaired lead\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n continue\n }\n\n // valid lead\n leadSurrogate = codePoint\n\n continue\n }\n\n // 2 leads in a row\n if (codePoint < 0xDC00) {\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n leadSurrogate = codePoint\n continue\n }\n\n // valid surrogate pair\n codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000\n } else if (leadSurrogate) {\n // valid bmp char, but last char was a lead\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n }\n\n leadSurrogate = null\n\n // encode utf8\n if (codePoint < 0x80) {\n if ((units -= 1) < 0) break\n bytes.push(codePoint)\n } else if (codePoint < 0x800) {\n if ((units -= 2) < 0) break\n bytes.push(\n codePoint >> 0x6 | 0xC0,\n codePoint & 0x3F | 0x80\n )\n } else if (codePoint < 0x10000) {\n if ((units -= 3) < 0) break\n bytes.push(\n codePoint >> 0xC | 0xE0,\n codePoint >> 0x6 & 0x3F | 0x80,\n codePoint & 0x3F | 0x80\n )\n } else if (codePoint < 0x110000) {\n if ((units -= 4) < 0) break\n bytes.push(\n codePoint >> 0x12 | 0xF0,\n codePoint >> 0xC & 0x3F | 0x80,\n codePoint >> 0x6 & 0x3F | 0x80,\n codePoint & 0x3F | 0x80\n )\n } else {\n throw new Error('Invalid code point')\n }\n }\n\n return bytes\n}\n\nfunction asciiToBytes (str) {\n var byteArray = []\n for (var i = 0; i < str.length; ++i) {\n // Node's code seems to be doing this and not & 0x7F..\n byteArray.push(str.charCodeAt(i) & 0xFF)\n }\n return byteArray\n}\n\nfunction utf16leToBytes (str, units) {\n var c, hi, lo\n var byteArray = []\n for (var i = 0; i < str.length; ++i) {\n if ((units -= 2) < 0) break\n\n c = str.charCodeAt(i)\n hi = c >> 8\n lo = c % 256\n byteArray.push(lo)\n byteArray.push(hi)\n }\n\n return byteArray\n}\n\nfunction base64ToBytes (str) {\n return base64.toByteArray(base64clean(str))\n}\n\nfunction blitBuffer (src, dst, offset, length) {\n for (var i = 0; i < length; ++i) {\n if ((i + offset >= dst.length) || (i >= src.length)) break\n dst[i + offset] = src[i]\n }\n return i\n}\n\nfunction isnan (val) {\n return val !== val // eslint-disable-line no-self-compare\n}\n", "var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n return toString.call(arr) == '[object Array]';\n};\n", + "\n/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n && 'undefined' != typeof chrome.storage\n ? chrome.storage.local\n : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n 'lightseagreen',\n 'forestgreen',\n 'goldenrod',\n 'dodgerblue',\n 'darkorchid',\n 'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n // is webkit? http://stackoverflow.com/a/16459606/376773\n return ('WebkitAppearance' in document.documentElement.style) ||\n // is firebug? http://stackoverflow.com/a/398120/376773\n (window.console && (console.firebug || (console.exception && console.table))) ||\n // is firefox >= v31?\n // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n (navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31);\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n return JSON.stringify(v);\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs() {\n var args = arguments;\n var useColors = this.useColors;\n\n args[0] = (useColors ? '%c' : '')\n + this.namespace\n + (useColors ? ' %c' : ' ')\n + args[0]\n + (useColors ? '%c ' : ' ');\n\n if (!useColors) return args;\n\n var c = 'color: ' + this.color;\n args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));\n\n // the final \"%c\" is somewhat tricky, because there could be other\n // arguments passed either before or after the %c, so we need to\n // figure out the correct index to insert the CSS into\n var index = 0;\n var lastC = 0;\n args[0].replace(/%[a-z%]/g, function(match) {\n if ('%%' === match) return;\n index++;\n if ('%c' === match) {\n // we only are interested in the *last* %c\n // (the user may have provided their own)\n lastC = index;\n }\n });\n\n args.splice(lastC, 0, c);\n return args;\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n // this hackery is required for IE8/9, where\n // the `console.log` function doesn't have 'apply'\n return 'object' === typeof console\n && console.log\n && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n try {\n if (null == namespaces) {\n exports.storage.removeItem('debug');\n } else {\n exports.storage.debug = namespaces;\n }\n } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n var r;\n try {\n r = exports.storage.debug;\n } catch(e) {}\n return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage(){\n try {\n return window.localStorage;\n } catch (e) {}\n}\n", + "\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = debug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lowercased letter, i.e. \"n\".\n */\n\nexports.formatters = {};\n\n/**\n * Previously assigned color.\n */\n\nvar prevColor = 0;\n\n/**\n * Select a color.\n *\n * @return {Number}\n * @api private\n */\n\nfunction selectColor() {\n return exports.colors[prevColor++ % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction debug(namespace) {\n\n // define the `disabled` version\n function disabled() {\n }\n disabled.enabled = false;\n\n // define the `enabled` version\n function enabled() {\n\n var self = enabled;\n\n // add the `color` if not set\n if (null == self.useColors) self.useColors = exports.useColors();\n if (null == self.color && self.useColors) self.color = selectColor();\n\n var args = Array.prototype.slice.call(arguments);\n\n args[0] = exports.coerce(args[0]);\n\n if ('string' !== typeof args[0]) {\n // anything else let's inspect with %o\n args = ['%o'].concat(args);\n }\n\n // apply any `formatters` transformations\n var index = 0;\n args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {\n // if we encounter an escaped % then don't increase the array index\n if (match === '%%') return match;\n index++;\n var formatter = exports.formatters[format];\n if ('function' === typeof formatter) {\n var val = args[index];\n match = formatter.call(self, val);\n\n // now we need to remove `args[index]` since it's inlined in the `format`\n args.splice(index, 1);\n index--;\n }\n return match;\n });\n\n if ('function' === typeof exports.formatArgs) {\n args = exports.formatArgs.apply(self, args);\n }\n var logFn = enabled.log || exports.log || console.log.bind(console);\n logFn.apply(self, args);\n }\n enabled.enabled = true;\n\n var fn = exports.enabled(namespace) ? enabled : disabled;\n\n fn.namespace = namespace;\n\n return fn;\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n exports.save(namespaces);\n\n var split = (namespaces || '').split(/[\\s,]+/);\n var len = split.length;\n\n for (var i = 0; i < len; i++) {\n if (!split[i]) continue; // ignore empty strings\n namespaces = split[i].replace(/\\*/g, '.*?');\n if (namespaces[0] === '-') {\n exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n } else {\n exports.names.push(new RegExp('^' + namespaces + '$'));\n }\n }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n var i, len;\n for (i = 0, len = exports.skips.length; i < len; i++) {\n if (exports.skips[i].test(name)) {\n return false;\n }\n }\n for (i = 0, len = exports.names.length; i < len; i++) {\n if (exports.names[i].test(name)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n if (val instanceof Error) return val.stack || val.message;\n return val;\n}\n", "'use strict';\nvar isObj = require('is-obj');\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nvar propIsEnumerable = Object.prototype.propertyIsEnumerable;\n\nfunction toObject(val) {\n\tif (val === null || val === undefined) {\n\t\tthrow new TypeError('Sources cannot be null or undefined');\n\t}\n\n\treturn Object(val);\n}\n\nfunction assignKey(to, from, key) {\n\tvar val = from[key];\n\n\tif (val === undefined || val === null) {\n\t\treturn;\n\t}\n\n\tif (hasOwnProperty.call(to, key)) {\n\t\tif (to[key] === undefined || to[key] === null) {\n\t\t\tthrow new TypeError('Cannot convert undefined or null to object (' + key + ')');\n\t\t}\n\t}\n\n\tif (!hasOwnProperty.call(to, key) || !isObj(val)) {\n\t\tto[key] = val;\n\t} else {\n\t\tto[key] = assign(Object(to[key]), from[key]);\n\t}\n}\n\nfunction assign(to, from) {\n\tif (to === from) {\n\t\treturn to;\n\t}\n\n\tfrom = Object(from);\n\n\tfor (var key in from) {\n\t\tif (hasOwnProperty.call(from, key)) {\n\t\t\tassignKey(to, from, key);\n\t\t}\n\t}\n\n\tif (Object.getOwnPropertySymbols) {\n\t\tvar symbols = Object.getOwnPropertySymbols(from);\n\n\t\tfor (var i = 0; i < symbols.length; i++) {\n\t\t\tif (propIsEnumerable.call(from, symbols[i])) {\n\t\t\t\tassignKey(to, from, symbols[i]);\n\t\t\t}\n\t\t}\n\t}\n\n\treturn to;\n}\n\nmodule.exports = function deepAssign(target) {\n\ttarget = toObject(target);\n\n\tfor (var s = 1; s < arguments.length; s++) {\n\t\tassign(target, arguments[s]);\n\t}\n\n\treturn target;\n};\n", + "/*! (C) WebReflection Mit Style License */\n(function(t,n,r,i){\"use strict\";function st(e,t){for(var n=0,r=e.length;n>0),o=\"attached\",u=\"detached\",a=\"extends\",f=\"ADDITION\",l=\"MODIFICATION\",c=\"REMOVAL\",h=\"DOMAttrModified\",p=\"DOMContentLoaded\",d=\"DOMSubtreeModified\",v=\"<\",m=\"=\",g=/^[A-Z][A-Z0-9]*(?:-[A-Z0-9]+)+$/,y=[\"ANNOTATION-XML\",\"COLOR-PROFILE\",\"FONT-FACE\",\"FONT-FACE-SRC\",\"FONT-FACE-URI\",\"FONT-FACE-FORMAT\",\"FONT-FACE-NAME\",\"MISSING-GLYPH\"],b=[],w=[],E=\"\",S=n.documentElement,x=b.indexOf||function(e){for(var t=this.length;t--&&this[t]!==e;);return t},T=r.prototype,N=T.hasOwnProperty,C=T.isPrototypeOf,k=r.defineProperty,L=r.getOwnPropertyDescriptor,A=r.getOwnPropertyNames,O=r.getPrototypeOf,M=r.setPrototypeOf,_=!!r.__proto__,D=r.create||function yt(e){return e?(yt.prototype=e,new yt):this},P=M||(_?function(e,t){return e.__proto__=t,e}:A&&L?function(){function e(e,t){for(var n,r=A(t),i=0,s=r.length;i 0 ) ? 1 : + x;\n\n\t\t};\n\n\t}\n\n\tif ( 'name' in Function.prototype === false ) {\n\n\t\t// Missing in IE\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name\n\n\t\tObject.defineProperty( Function.prototype, 'name', {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.toString().match( /^\\s*function\\s*([^\\(\\s]*)/ )[ 1 ];\n\n\t\t\t}\n\n\t\t} );\n\n\t}\n\n\tif ( Object.assign === undefined ) {\n\n\t\t// Missing in IE\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\n\n\t\t( function () {\n\n\t\t\tObject.assign = function ( target ) {\n\n\t\t\t\tif ( target === undefined || target === null ) {\n\n\t\t\t\t\tthrow new TypeError( 'Cannot convert undefined or null to object' );\n\n\t\t\t\t}\n\n\t\t\t\tvar output = Object( target );\n\n\t\t\t\tfor ( var index = 1; index < arguments.length; index ++ ) {\n\n\t\t\t\t\tvar source = arguments[ index ];\n\n\t\t\t\t\tif ( source !== undefined && source !== null ) {\n\n\t\t\t\t\t\tfor ( var nextKey in source ) {\n\n\t\t\t\t\t\t\tif ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {\n\n\t\t\t\t\t\t\t\toutput[ nextKey ] = source[ nextKey ];\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn output;\n\n\t\t\t};\n\n\t\t} )();\n\n\t}\n\n\t/**\n\t * https://github.com/mrdoob/eventdispatcher.js/\n\t */\n\n\tfunction EventDispatcher() {}\n\n\tObject.assign( EventDispatcher.prototype, {\n\n\t\taddEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) this._listeners = {};\n\n\t\t\tvar listeners = this._listeners;\n\n\t\t\tif ( listeners[ type ] === undefined ) {\n\n\t\t\t\tlisteners[ type ] = [];\n\n\t\t\t}\n\n\t\t\tif ( listeners[ type ].indexOf( listener ) === - 1 ) {\n\n\t\t\t\tlisteners[ type ].push( listener );\n\n\t\t\t}\n\n\t\t},\n\n\t\thasEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) return false;\n\n\t\t\tvar listeners = this._listeners;\n\n\t\t\treturn listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;\n\n\t\t},\n\n\t\tremoveEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) return;\n\n\t\t\tvar listeners = this._listeners;\n\t\t\tvar listenerArray = listeners[ type ];\n\n\t\t\tif ( listenerArray !== undefined ) {\n\n\t\t\t\tvar index = listenerArray.indexOf( listener );\n\n\t\t\t\tif ( index !== - 1 ) {\n\n\t\t\t\t\tlistenerArray.splice( index, 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tdispatchEvent: function ( event ) {\n\n\t\t\tif ( this._listeners === undefined ) return;\n\n\t\t\tvar listeners = this._listeners;\n\t\t\tvar listenerArray = listeners[ event.type ];\n\n\t\t\tif ( listenerArray !== undefined ) {\n\n\t\t\t\tevent.target = this;\n\n\t\t\t\tvar array = listenerArray.slice( 0 );\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i ++ ) {\n\n\t\t\t\t\tarray[ i ].call( this, event );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tvar REVISION = '95';\n\tvar MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };\n\tvar CullFaceNone = 0;\n\tvar CullFaceBack = 1;\n\tvar CullFaceFront = 2;\n\tvar CullFaceFrontBack = 3;\n\tvar FrontFaceDirectionCW = 0;\n\tvar FrontFaceDirectionCCW = 1;\n\tvar BasicShadowMap = 0;\n\tvar PCFShadowMap = 1;\n\tvar PCFSoftShadowMap = 2;\n\tvar FrontSide = 0;\n\tvar BackSide = 1;\n\tvar DoubleSide = 2;\n\tvar FlatShading = 1;\n\tvar SmoothShading = 2;\n\tvar NoColors = 0;\n\tvar FaceColors = 1;\n\tvar VertexColors = 2;\n\tvar NoBlending = 0;\n\tvar NormalBlending = 1;\n\tvar AdditiveBlending = 2;\n\tvar SubtractiveBlending = 3;\n\tvar MultiplyBlending = 4;\n\tvar CustomBlending = 5;\n\tvar AddEquation = 100;\n\tvar SubtractEquation = 101;\n\tvar ReverseSubtractEquation = 102;\n\tvar MinEquation = 103;\n\tvar MaxEquation = 104;\n\tvar ZeroFactor = 200;\n\tvar OneFactor = 201;\n\tvar SrcColorFactor = 202;\n\tvar OneMinusSrcColorFactor = 203;\n\tvar SrcAlphaFactor = 204;\n\tvar OneMinusSrcAlphaFactor = 205;\n\tvar DstAlphaFactor = 206;\n\tvar OneMinusDstAlphaFactor = 207;\n\tvar DstColorFactor = 208;\n\tvar OneMinusDstColorFactor = 209;\n\tvar SrcAlphaSaturateFactor = 210;\n\tvar NeverDepth = 0;\n\tvar AlwaysDepth = 1;\n\tvar LessDepth = 2;\n\tvar LessEqualDepth = 3;\n\tvar EqualDepth = 4;\n\tvar GreaterEqualDepth = 5;\n\tvar GreaterDepth = 6;\n\tvar NotEqualDepth = 7;\n\tvar MultiplyOperation = 0;\n\tvar MixOperation = 1;\n\tvar AddOperation = 2;\n\tvar NoToneMapping = 0;\n\tvar LinearToneMapping = 1;\n\tvar ReinhardToneMapping = 2;\n\tvar Uncharted2ToneMapping = 3;\n\tvar CineonToneMapping = 4;\n\tvar UVMapping = 300;\n\tvar CubeReflectionMapping = 301;\n\tvar CubeRefractionMapping = 302;\n\tvar EquirectangularReflectionMapping = 303;\n\tvar EquirectangularRefractionMapping = 304;\n\tvar SphericalReflectionMapping = 305;\n\tvar CubeUVReflectionMapping = 306;\n\tvar CubeUVRefractionMapping = 307;\n\tvar RepeatWrapping = 1000;\n\tvar ClampToEdgeWrapping = 1001;\n\tvar MirroredRepeatWrapping = 1002;\n\tvar NearestFilter = 1003;\n\tvar NearestMipMapNearestFilter = 1004;\n\tvar NearestMipMapLinearFilter = 1005;\n\tvar LinearFilter = 1006;\n\tvar LinearMipMapNearestFilter = 1007;\n\tvar LinearMipMapLinearFilter = 1008;\n\tvar UnsignedByteType = 1009;\n\tvar ByteType = 1010;\n\tvar ShortType = 1011;\n\tvar UnsignedShortType = 1012;\n\tvar IntType = 1013;\n\tvar UnsignedIntType = 1014;\n\tvar FloatType = 1015;\n\tvar HalfFloatType = 1016;\n\tvar UnsignedShort4444Type = 1017;\n\tvar UnsignedShort5551Type = 1018;\n\tvar UnsignedShort565Type = 1019;\n\tvar UnsignedInt248Type = 1020;\n\tvar AlphaFormat = 1021;\n\tvar RGBFormat = 1022;\n\tvar RGBAFormat = 1023;\n\tvar LuminanceFormat = 1024;\n\tvar LuminanceAlphaFormat = 1025;\n\tvar RGBEFormat = RGBAFormat;\n\tvar DepthFormat = 1026;\n\tvar DepthStencilFormat = 1027;\n\tvar RGB_S3TC_DXT1_Format = 33776;\n\tvar RGBA_S3TC_DXT1_Format = 33777;\n\tvar RGBA_S3TC_DXT3_Format = 33778;\n\tvar RGBA_S3TC_DXT5_Format = 33779;\n\tvar RGB_PVRTC_4BPPV1_Format = 35840;\n\tvar RGB_PVRTC_2BPPV1_Format = 35841;\n\tvar RGBA_PVRTC_4BPPV1_Format = 35842;\n\tvar RGBA_PVRTC_2BPPV1_Format = 35843;\n\tvar RGB_ETC1_Format = 36196;\n\tvar RGBA_ASTC_4x4_Format = 37808;\n\tvar RGBA_ASTC_5x4_Format = 37809;\n\tvar RGBA_ASTC_5x5_Format = 37810;\n\tvar RGBA_ASTC_6x5_Format = 37811;\n\tvar RGBA_ASTC_6x6_Format = 37812;\n\tvar RGBA_ASTC_8x5_Format = 37813;\n\tvar RGBA_ASTC_8x6_Format = 37814;\n\tvar RGBA_ASTC_8x8_Format = 37815;\n\tvar RGBA_ASTC_10x5_Format = 37816;\n\tvar RGBA_ASTC_10x6_Format = 37817;\n\tvar RGBA_ASTC_10x8_Format = 37818;\n\tvar RGBA_ASTC_10x10_Format = 37819;\n\tvar RGBA_ASTC_12x10_Format = 37820;\n\tvar RGBA_ASTC_12x12_Format = 37821;\n\tvar LoopOnce = 2200;\n\tvar LoopRepeat = 2201;\n\tvar LoopPingPong = 2202;\n\tvar InterpolateDiscrete = 2300;\n\tvar InterpolateLinear = 2301;\n\tvar InterpolateSmooth = 2302;\n\tvar ZeroCurvatureEnding = 2400;\n\tvar ZeroSlopeEnding = 2401;\n\tvar WrapAroundEnding = 2402;\n\tvar TrianglesDrawMode = 0;\n\tvar TriangleStripDrawMode = 1;\n\tvar TriangleFanDrawMode = 2;\n\tvar LinearEncoding = 3000;\n\tvar sRGBEncoding = 3001;\n\tvar GammaEncoding = 3007;\n\tvar RGBEEncoding = 3002;\n\tvar LogLuvEncoding = 3003;\n\tvar RGBM7Encoding = 3004;\n\tvar RGBM16Encoding = 3005;\n\tvar RGBDEncoding = 3006;\n\tvar BasicDepthPacking = 3200;\n\tvar RGBADepthPacking = 3201;\n\tvar TangentSpaceNormalMap = 0;\n\tvar ObjectSpaceNormalMap = 1;\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar _Math = {\n\n\t\tDEG2RAD: Math.PI / 180,\n\t\tRAD2DEG: 180 / Math.PI,\n\n\t\tgenerateUUID: ( function () {\n\n\t\t\t// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136\n\n\t\t\tvar lut = [];\n\n\t\t\tfor ( var i = 0; i < 256; i ++ ) {\n\n\t\t\t\tlut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 );\n\n\t\t\t}\n\n\t\t\treturn function generateUUID() {\n\n\t\t\t\tvar d0 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar d1 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar d2 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar d3 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar uuid = lut[ d0 & 0xff ] + lut[ d0 >> 8 & 0xff ] + lut[ d0 >> 16 & 0xff ] + lut[ d0 >> 24 & 0xff ] + '-' +\n\t\t\t\t\tlut[ d1 & 0xff ] + lut[ d1 >> 8 & 0xff ] + '-' + lut[ d1 >> 16 & 0x0f | 0x40 ] + lut[ d1 >> 24 & 0xff ] + '-' +\n\t\t\t\t\tlut[ d2 & 0x3f | 0x80 ] + lut[ d2 >> 8 & 0xff ] + '-' + lut[ d2 >> 16 & 0xff ] + lut[ d2 >> 24 & 0xff ] +\n\t\t\t\t\tlut[ d3 & 0xff ] + lut[ d3 >> 8 & 0xff ] + lut[ d3 >> 16 & 0xff ] + lut[ d3 >> 24 & 0xff ];\n\n\t\t\t\t// .toUpperCase() here flattens concatenated strings to save heap memory space.\n\t\t\t\treturn uuid.toUpperCase();\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tclamp: function ( value, min, max ) {\n\n\t\t\treturn Math.max( min, Math.min( max, value ) );\n\n\t\t},\n\n\t\t// compute euclidian modulo of m % n\n\t\t// https://en.wikipedia.org/wiki/Modulo_operation\n\n\t\teuclideanModulo: function ( n, m ) {\n\n\t\t\treturn ( ( n % m ) + m ) % m;\n\n\t\t},\n\n\t\t// Linear mapping from range to range \n\n\t\tmapLinear: function ( x, a1, a2, b1, b2 ) {\n\n\t\t\treturn b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );\n\n\t\t},\n\n\t\t// https://en.wikipedia.org/wiki/Linear_interpolation\n\n\t\tlerp: function ( x, y, t ) {\n\n\t\t\treturn ( 1 - t ) * x + t * y;\n\n\t\t},\n\n\t\t// http://en.wikipedia.org/wiki/Smoothstep\n\n\t\tsmoothstep: function ( x, min, max ) {\n\n\t\t\tif ( x <= min ) return 0;\n\t\t\tif ( x >= max ) return 1;\n\n\t\t\tx = ( x - min ) / ( max - min );\n\n\t\t\treturn x * x * ( 3 - 2 * x );\n\n\t\t},\n\n\t\tsmootherstep: function ( x, min, max ) {\n\n\t\t\tif ( x <= min ) return 0;\n\t\t\tif ( x >= max ) return 1;\n\n\t\t\tx = ( x - min ) / ( max - min );\n\n\t\t\treturn x * x * x * ( x * ( x * 6 - 15 ) + 10 );\n\n\t\t},\n\n\t\t// Random integer from interval\n\n\t\trandInt: function ( low, high ) {\n\n\t\t\treturn low + Math.floor( Math.random() * ( high - low + 1 ) );\n\n\t\t},\n\n\t\t// Random float from interval\n\n\t\trandFloat: function ( low, high ) {\n\n\t\t\treturn low + Math.random() * ( high - low );\n\n\t\t},\n\n\t\t// Random float from <-range/2, range/2> interval\n\n\t\trandFloatSpread: function ( range ) {\n\n\t\t\treturn range * ( 0.5 - Math.random() );\n\n\t\t},\n\n\t\tdegToRad: function ( degrees ) {\n\n\t\t\treturn degrees * _Math.DEG2RAD;\n\n\t\t},\n\n\t\tradToDeg: function ( radians ) {\n\n\t\t\treturn radians * _Math.RAD2DEG;\n\n\t\t},\n\n\t\tisPowerOfTwo: function ( value ) {\n\n\t\t\treturn ( value & ( value - 1 ) ) === 0 && value !== 0;\n\n\t\t},\n\n\t\tceilPowerOfTwo: function ( value ) {\n\n\t\t\treturn Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );\n\n\t\t},\n\n\t\tfloorPowerOfTwo: function ( value ) {\n\n\t\t\treturn Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author egraether / http://egraether.com/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t */\n\n\tfunction Vector2( x, y ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\n\t}\n\n\tObject.defineProperties( Vector2.prototype, {\n\n\t\t\"width\": {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.x;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis.x = value;\n\n\t\t\t}\n\n\t\t},\n\n\t\t\"height\": {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.y;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis.y = value;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector2.prototype, {\n\n\t\tisVector2: true,\n\n\t\tset: function ( x, y ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( v ) {\n\n\t\t\tthis.x *= v.x;\n\t\t\tthis.y *= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tthis.x *= scalar;\n\t\t\tthis.y *= scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivide: function ( v ) {\n\n\t\t\tthis.x /= v.x;\n\t\t\tthis.y /= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tapplyMatrix3: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];\n\t\t\tthis.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// assumes min < max, componentwise\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min = new Vector2();\n\t\t\tvar max = new Vector2();\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tmin.set( minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y;\n\n\t\t},\n\n\t\tcross: function ( v ) {\n\n\t\t\treturn this.x * v.y - this.y * v.x;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y );\n\n\t\t},\n\n\t\tmanhattanLength: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() || 1 );\n\n\t\t},\n\n\t\tangle: function () {\n\n\t\t\t// computes the angle in radians with respect to the positive x-axis\n\n\t\t\tvar angle = Math.atan2( this.y, this.x );\n\n\t\t\tif ( angle < 0 ) angle += 2 * Math.PI;\n\n\t\t\treturn angle;\n\n\t\t},\n\n\t\tdistanceTo: function ( v ) {\n\n\t\t\treturn Math.sqrt( this.distanceToSquared( v ) );\n\n\t\t},\n\n\t\tdistanceToSquared: function ( v ) {\n\n\t\t\tvar dx = this.x - v.x, dy = this.y - v.y;\n\t\t\treturn dx * dx + dy * dy;\n\n\t\t},\n\n\t\tmanhattanDistanceTo: function ( v ) {\n\n\t\t\treturn Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.normalize().multiplyScalar( length );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromBufferAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );\n\n\t\t\t}\n\n\t\t\tthis.x = attribute.getX( index );\n\t\t\tthis.y = attribute.getY( index );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateAround: function ( center, angle ) {\n\n\t\t\tvar c = Math.cos( angle ), s = Math.sin( angle );\n\n\t\t\tvar x = this.x - center.x;\n\t\t\tvar y = this.y - center.y;\n\n\t\t\tthis.x = x * c - y * s + center.x;\n\t\t\tthis.y = x * s + y * c + center.y;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author jordi_ros / http://plattsoft.com\n\t * @author D1plo1d / http://github.com/D1plo1d\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author timknip / http://www.floorplanner.com/\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Matrix4() {\n\n\t\tthis.elements = [\n\n\t\t\t1, 0, 0, 0,\n\t\t\t0, 1, 0, 0,\n\t\t\t0, 0, 1, 0,\n\t\t\t0, 0, 0, 1\n\n\t\t];\n\n\t\tif ( arguments.length > 0 ) {\n\n\t\t\tconsole.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );\n\n\t\t}\n\n\t}\n\n\tObject.assign( Matrix4.prototype, {\n\n\t\tisMatrix4: true,\n\n\t\tset: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;\n\t\t\tte[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;\n\t\t\tte[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;\n\t\t\tte[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tidentity: function () {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, 0,\n\t\t\t\t0, 1, 0, 0,\n\t\t\t\t0, 0, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new Matrix4().fromArray( this.elements );\n\n\t\t},\n\n\t\tcopy: function ( m ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = m.elements;\n\n\t\t\tte[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];\n\t\t\tte[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];\n\t\t\tte[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];\n\t\t\tte[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyPosition: function ( m ) {\n\n\t\t\tvar te = this.elements, me = m.elements;\n\n\t\t\tte[ 12 ] = me[ 12 ];\n\t\t\tte[ 13 ] = me[ 13 ];\n\t\t\tte[ 14 ] = me[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\textractBasis: function ( xAxis, yAxis, zAxis ) {\n\n\t\t\txAxis.setFromMatrixColumn( this, 0 );\n\t\t\tyAxis.setFromMatrixColumn( this, 1 );\n\t\t\tzAxis.setFromMatrixColumn( this, 2 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeBasis: function ( xAxis, yAxis, zAxis ) {\n\n\t\t\tthis.set(\n\t\t\t\txAxis.x, yAxis.x, zAxis.x, 0,\n\t\t\t\txAxis.y, yAxis.y, zAxis.y, 0,\n\t\t\t\txAxis.z, yAxis.z, zAxis.z, 0,\n\t\t\t\t0, 0, 0, 1\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\textractRotation: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function extractRotation( m ) {\n\n\t\t\t\t// this method does not support reflection matrices\n\n\t\t\t\tvar te = this.elements;\n\t\t\t\tvar me = m.elements;\n\n\t\t\t\tvar scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();\n\t\t\t\tvar scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();\n\t\t\t\tvar scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();\n\n\t\t\t\tte[ 0 ] = me[ 0 ] * scaleX;\n\t\t\t\tte[ 1 ] = me[ 1 ] * scaleX;\n\t\t\t\tte[ 2 ] = me[ 2 ] * scaleX;\n\t\t\t\tte[ 3 ] = 0;\n\n\t\t\t\tte[ 4 ] = me[ 4 ] * scaleY;\n\t\t\t\tte[ 5 ] = me[ 5 ] * scaleY;\n\t\t\t\tte[ 6 ] = me[ 6 ] * scaleY;\n\t\t\t\tte[ 7 ] = 0;\n\n\t\t\t\tte[ 8 ] = me[ 8 ] * scaleZ;\n\t\t\t\tte[ 9 ] = me[ 9 ] * scaleZ;\n\t\t\t\tte[ 10 ] = me[ 10 ] * scaleZ;\n\t\t\t\tte[ 11 ] = 0;\n\n\t\t\t\tte[ 12 ] = 0;\n\t\t\t\tte[ 13 ] = 0;\n\t\t\t\tte[ 14 ] = 0;\n\t\t\t\tte[ 15 ] = 1;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmakeRotationFromEuler: function ( euler ) {\n\n\t\t\tif ( ! ( euler && euler.isEuler ) ) {\n\n\t\t\t\tconsole.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t}\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar x = euler.x, y = euler.y, z = euler.z;\n\t\t\tvar a = Math.cos( x ), b = Math.sin( x );\n\t\t\tvar c = Math.cos( y ), d = Math.sin( y );\n\t\t\tvar e = Math.cos( z ), f = Math.sin( z );\n\n\t\t\tif ( euler.order === 'XYZ' ) {\n\n\t\t\t\tvar ae = a * e, af = a * f, be = b * e, bf = b * f;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = - c * f;\n\t\t\t\tte[ 8 ] = d;\n\n\t\t\t\tte[ 1 ] = af + be * d;\n\t\t\t\tte[ 5 ] = ae - bf * d;\n\t\t\t\tte[ 9 ] = - b * c;\n\n\t\t\t\tte[ 2 ] = bf - ae * d;\n\t\t\t\tte[ 6 ] = be + af * d;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'YXZ' ) {\n\n\t\t\t\tvar ce = c * e, cf = c * f, de = d * e, df = d * f;\n\n\t\t\t\tte[ 0 ] = ce + df * b;\n\t\t\t\tte[ 4 ] = de * b - cf;\n\t\t\t\tte[ 8 ] = a * d;\n\n\t\t\t\tte[ 1 ] = a * f;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = - b;\n\n\t\t\t\tte[ 2 ] = cf * b - de;\n\t\t\t\tte[ 6 ] = df + ce * b;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'ZXY' ) {\n\n\t\t\t\tvar ce = c * e, cf = c * f, de = d * e, df = d * f;\n\n\t\t\t\tte[ 0 ] = ce - df * b;\n\t\t\t\tte[ 4 ] = - a * f;\n\t\t\t\tte[ 8 ] = de + cf * b;\n\n\t\t\t\tte[ 1 ] = cf + de * b;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = df - ce * b;\n\n\t\t\t\tte[ 2 ] = - a * d;\n\t\t\t\tte[ 6 ] = b;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'ZYX' ) {\n\n\t\t\t\tvar ae = a * e, af = a * f, be = b * e, bf = b * f;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = be * d - af;\n\t\t\t\tte[ 8 ] = ae * d + bf;\n\n\t\t\t\tte[ 1 ] = c * f;\n\t\t\t\tte[ 5 ] = bf * d + ae;\n\t\t\t\tte[ 9 ] = af * d - be;\n\n\t\t\t\tte[ 2 ] = - d;\n\t\t\t\tte[ 6 ] = b * c;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'YZX' ) {\n\n\t\t\t\tvar ac = a * c, ad = a * d, bc = b * c, bd = b * d;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = bd - ac * f;\n\t\t\t\tte[ 8 ] = bc * f + ad;\n\n\t\t\t\tte[ 1 ] = f;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = - b * e;\n\n\t\t\t\tte[ 2 ] = - d * e;\n\t\t\t\tte[ 6 ] = ad * f + bc;\n\t\t\t\tte[ 10 ] = ac - bd * f;\n\n\t\t\t} else if ( euler.order === 'XZY' ) {\n\n\t\t\t\tvar ac = a * c, ad = a * d, bc = b * c, bd = b * d;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = - f;\n\t\t\t\tte[ 8 ] = d * e;\n\n\t\t\t\tte[ 1 ] = ac * f + bd;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = ad * f - bc;\n\n\t\t\t\tte[ 2 ] = bc * f - ad;\n\t\t\t\tte[ 6 ] = b * e;\n\t\t\t\tte[ 10 ] = bd * f + ac;\n\n\t\t\t}\n\n\t\t\t// bottom row\n\t\t\tte[ 3 ] = 0;\n\t\t\tte[ 7 ] = 0;\n\t\t\tte[ 11 ] = 0;\n\n\t\t\t// last column\n\t\t\tte[ 12 ] = 0;\n\t\t\tte[ 13 ] = 0;\n\t\t\tte[ 14 ] = 0;\n\t\t\tte[ 15 ] = 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationFromQuaternion: function () {\n\n\t\t\tvar zero = new Vector3( 0, 0, 0 );\n\t\t\tvar one = new Vector3( 1, 1, 1 );\n\n\t\t\treturn function makeRotationFromQuaternion( q ) {\n\n\t\t\t\treturn this.compose( zero, q, one );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar x = new Vector3();\n\t\t\tvar y = new Vector3();\n\t\t\tvar z = new Vector3();\n\n\t\t\treturn function lookAt( eye, target, up ) {\n\n\t\t\t\tvar te = this.elements;\n\n\t\t\t\tz.subVectors( eye, target );\n\n\t\t\t\tif ( z.lengthSq() === 0 ) {\n\n\t\t\t\t\t// eye and target are in the same position\n\n\t\t\t\t\tz.z = 1;\n\n\t\t\t\t}\n\n\t\t\t\tz.normalize();\n\t\t\t\tx.crossVectors( up, z );\n\n\t\t\t\tif ( x.lengthSq() === 0 ) {\n\n\t\t\t\t\t// up and z are parallel\n\n\t\t\t\t\tif ( Math.abs( up.z ) === 1 ) {\n\n\t\t\t\t\t\tz.x += 0.0001;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tz.z += 0.0001;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tz.normalize();\n\t\t\t\t\tx.crossVectors( up, z );\n\n\t\t\t\t}\n\n\t\t\t\tx.normalize();\n\t\t\t\ty.crossVectors( z, x );\n\n\t\t\t\tte[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;\n\t\t\t\tte[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;\n\t\t\t\tte[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmultiply: function ( m, n ) {\n\n\t\t\tif ( n !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );\n\t\t\t\treturn this.multiplyMatrices( m, n );\n\n\t\t\t}\n\n\t\t\treturn this.multiplyMatrices( this, m );\n\n\t\t},\n\n\t\tpremultiply: function ( m ) {\n\n\t\t\treturn this.multiplyMatrices( m, this );\n\n\t\t},\n\n\t\tmultiplyMatrices: function ( a, b ) {\n\n\t\t\tvar ae = a.elements;\n\t\t\tvar be = b.elements;\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];\n\t\t\tvar a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];\n\t\t\tvar a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];\n\t\t\tvar a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];\n\n\t\t\tvar b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];\n\t\t\tvar b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];\n\t\t\tvar b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];\n\t\t\tvar b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];\n\n\t\t\tte[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;\n\t\t\tte[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;\n\t\t\tte[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;\n\t\t\tte[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;\n\n\t\t\tte[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;\n\t\t\tte[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;\n\t\t\tte[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;\n\t\t\tte[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;\n\n\t\t\tte[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;\n\t\t\tte[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;\n\t\t\tte[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;\n\t\t\tte[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;\n\n\t\t\tte[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;\n\t\t\tte[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;\n\t\t\tte[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;\n\t\t\tte[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;\n\t\t\tte[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;\n\t\t\tte[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;\n\t\t\tte[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyToBufferAttribute: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function applyToBufferAttribute( attribute ) {\n\n\t\t\t\tfor ( var i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\t\tv1.x = attribute.getX( i );\n\t\t\t\t\tv1.y = attribute.getY( i );\n\t\t\t\t\tv1.z = attribute.getZ( i );\n\n\t\t\t\t\tv1.applyMatrix4( this );\n\n\t\t\t\t\tattribute.setXYZ( i, v1.x, v1.y, v1.z );\n\n\t\t\t\t}\n\n\t\t\t\treturn attribute;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tdeterminant: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];\n\t\t\tvar n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];\n\t\t\tvar n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];\n\t\t\tvar n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];\n\n\t\t\t//TODO: make this more efficient\n\t\t\t//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )\n\n\t\t\treturn (\n\t\t\t\tn41 * (\n\t\t\t\t\t+ n14 * n23 * n32\n\t\t\t\t\t - n13 * n24 * n32\n\t\t\t\t\t - n14 * n22 * n33\n\t\t\t\t\t + n12 * n24 * n33\n\t\t\t\t\t + n13 * n22 * n34\n\t\t\t\t\t - n12 * n23 * n34\n\t\t\t\t) +\n\t\t\t\tn42 * (\n\t\t\t\t\t+ n11 * n23 * n34\n\t\t\t\t\t - n11 * n24 * n33\n\t\t\t\t\t + n14 * n21 * n33\n\t\t\t\t\t - n13 * n21 * n34\n\t\t\t\t\t + n13 * n24 * n31\n\t\t\t\t\t - n14 * n23 * n31\n\t\t\t\t) +\n\t\t\t\tn43 * (\n\t\t\t\t\t+ n11 * n24 * n32\n\t\t\t\t\t - n11 * n22 * n34\n\t\t\t\t\t - n14 * n21 * n32\n\t\t\t\t\t + n12 * n21 * n34\n\t\t\t\t\t + n14 * n22 * n31\n\t\t\t\t\t - n12 * n24 * n31\n\t\t\t\t) +\n\t\t\t\tn44 * (\n\t\t\t\t\t- n13 * n22 * n31\n\t\t\t\t\t - n11 * n23 * n32\n\t\t\t\t\t + n11 * n22 * n33\n\t\t\t\t\t + n13 * n21 * n32\n\t\t\t\t\t - n12 * n21 * n33\n\t\t\t\t\t + n12 * n23 * n31\n\t\t\t\t)\n\n\t\t\t);\n\n\t\t},\n\n\t\ttranspose: function () {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar tmp;\n\n\t\t\ttmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;\n\t\t\ttmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;\n\t\t\ttmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;\n\n\t\t\ttmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;\n\t\t\ttmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;\n\t\t\ttmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPosition: function ( v ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 12 ] = v.x;\n\t\t\tte[ 13 ] = v.y;\n\t\t\tte[ 14 ] = v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetInverse: function ( m, throwOnDegenerate ) {\n\n\t\t\t// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm\n\t\t\tvar te = this.elements,\n\t\t\t\tme = m.elements,\n\n\t\t\t\tn11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],\n\t\t\t\tn12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],\n\t\t\t\tn13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],\n\t\t\t\tn14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],\n\n\t\t\t\tt11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,\n\t\t\t\tt12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,\n\t\t\t\tt13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,\n\t\t\t\tt14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;\n\n\t\t\tvar det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;\n\n\t\t\tif ( det === 0 ) {\n\n\t\t\t\tvar msg = \"THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0\";\n\n\t\t\t\tif ( throwOnDegenerate === true ) {\n\n\t\t\t\t\tthrow new Error( msg );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( msg );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.identity();\n\n\t\t\t}\n\n\t\t\tvar detInv = 1 / det;\n\n\t\t\tte[ 0 ] = t11 * detInv;\n\t\t\tte[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;\n\t\t\tte[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;\n\t\t\tte[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;\n\n\t\t\tte[ 4 ] = t12 * detInv;\n\t\t\tte[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;\n\t\t\tte[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;\n\t\t\tte[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;\n\n\t\t\tte[ 8 ] = t13 * detInv;\n\t\t\tte[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;\n\t\t\tte[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;\n\t\t\tte[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;\n\n\t\t\tte[ 12 ] = t14 * detInv;\n\t\t\tte[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;\n\t\t\tte[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;\n\t\t\tte[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tscale: function ( v ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar x = v.x, y = v.y, z = v.z;\n\n\t\t\tte[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;\n\t\t\tte[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;\n\t\t\tte[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;\n\t\t\tte[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetMaxScaleOnAxis: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];\n\t\t\tvar scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];\n\t\t\tvar scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];\n\n\t\t\treturn Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );\n\n\t\t},\n\n\t\tmakeTranslation: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, x,\n\t\t\t\t0, 1, 0, y,\n\t\t\t\t0, 0, 1, z,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationX: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, 0,\n\t\t\t\t0, c, - s, 0,\n\t\t\t\t0, s, c, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationY: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\t c, 0, s, 0,\n\t\t\t\t 0, 1, 0, 0,\n\t\t\t\t- s, 0, c, 0,\n\t\t\t\t 0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationZ: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\tc, - s, 0, 0,\n\t\t\t\ts, c, 0, 0,\n\t\t\t\t0, 0, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationAxis: function ( axis, angle ) {\n\n\t\t\t// Based on http://www.gamedev.net/reference/articles/article1199.asp\n\n\t\t\tvar c = Math.cos( angle );\n\t\t\tvar s = Math.sin( angle );\n\t\t\tvar t = 1 - c;\n\t\t\tvar x = axis.x, y = axis.y, z = axis.z;\n\t\t\tvar tx = t * x, ty = t * y;\n\n\t\t\tthis.set(\n\n\t\t\t\ttx * x + c, tx * y - s * z, tx * z + s * y, 0,\n\t\t\t\ttx * y + s * z, ty * y + c, ty * z - s * x, 0,\n\t\t\t\ttx * z - s * y, ty * z + s * x, t * z * z + c, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\t return this;\n\n\t\t},\n\n\t\tmakeScale: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\tx, 0, 0, 0,\n\t\t\t\t0, y, 0, 0,\n\t\t\t\t0, 0, z, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeShear: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, y, z, 0,\n\t\t\t\tx, 1, z, 0,\n\t\t\t\tx, y, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcompose: function ( position, quaternion, scale ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;\n\t\t\tvar x2 = x + x,\ty2 = y + y, z2 = z + z;\n\t\t\tvar xx = x * x2, xy = x * y2, xz = x * z2;\n\t\t\tvar yy = y * y2, yz = y * z2, zz = z * z2;\n\t\t\tvar wx = w * x2, wy = w * y2, wz = w * z2;\n\n\t\t\tvar sx = scale.x, sy = scale.y, sz = scale.z;\n\n\t\t te[ 0 ] = ( 1 - ( yy + zz ) ) * sx;\n\t\t te[ 1 ] = ( xy + wz ) * sx;\n\t\t te[ 2 ] = ( xz - wy ) * sx;\n\t\t te[ 3 ] = 0;\n\n\t\t te[ 4 ] = ( xy - wz ) * sy;\n\t\t te[ 5 ] = ( 1 - ( xx + zz ) ) * sy;\n\t\t te[ 6 ] = ( yz + wx ) * sy;\n\t\t te[ 7 ] = 0;\n\n\t\t te[ 8 ] = ( xz + wy ) * sz;\n\t\t te[ 9 ] = ( yz - wx ) * sz;\n\t\t te[ 10 ] = ( 1 - ( xx + yy ) ) * sz;\n\t\t te[ 11 ] = 0;\n\n\t\t te[ 12 ] = position.x;\n\t\t te[ 13 ] = position.y;\n\t\t te[ 14 ] = position.z;\n\t\t te[ 15 ] = 1;\n\n\t\t return this;\n\n\t\t},\n\n\t\tdecompose: function () {\n\n\t\t\tvar vector = new Vector3();\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function decompose( position, quaternion, scale ) {\n\n\t\t\t\tvar te = this.elements;\n\n\t\t\t\tvar sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();\n\t\t\t\tvar sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();\n\t\t\t\tvar sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();\n\n\t\t\t\t// if determine is negative, we need to invert one scale\n\t\t\t\tvar det = this.determinant();\n\t\t\t\tif ( det < 0 ) sx = - sx;\n\n\t\t\t\tposition.x = te[ 12 ];\n\t\t\t\tposition.y = te[ 13 ];\n\t\t\t\tposition.z = te[ 14 ];\n\n\t\t\t\t// scale the rotation part\n\t\t\t\tmatrix.copy( this );\n\n\t\t\t\tvar invSX = 1 / sx;\n\t\t\t\tvar invSY = 1 / sy;\n\t\t\t\tvar invSZ = 1 / sz;\n\n\t\t\t\tmatrix.elements[ 0 ] *= invSX;\n\t\t\t\tmatrix.elements[ 1 ] *= invSX;\n\t\t\t\tmatrix.elements[ 2 ] *= invSX;\n\n\t\t\t\tmatrix.elements[ 4 ] *= invSY;\n\t\t\t\tmatrix.elements[ 5 ] *= invSY;\n\t\t\t\tmatrix.elements[ 6 ] *= invSY;\n\n\t\t\t\tmatrix.elements[ 8 ] *= invSZ;\n\t\t\t\tmatrix.elements[ 9 ] *= invSZ;\n\t\t\t\tmatrix.elements[ 10 ] *= invSZ;\n\n\t\t\t\tquaternion.setFromRotationMatrix( matrix );\n\n\t\t\t\tscale.x = sx;\n\t\t\t\tscale.y = sy;\n\t\t\t\tscale.z = sz;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmakePerspective: function ( left, right, top, bottom, near, far ) {\n\n\t\t\tif ( far === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );\n\n\t\t\t}\n\n\t\t\tvar te = this.elements;\n\t\t\tvar x = 2 * near / ( right - left );\n\t\t\tvar y = 2 * near / ( top - bottom );\n\n\t\t\tvar a = ( right + left ) / ( right - left );\n\t\t\tvar b = ( top + bottom ) / ( top - bottom );\n\t\t\tvar c = - ( far + near ) / ( far - near );\n\t\t\tvar d = - 2 * far * near / ( far - near );\n\n\t\t\tte[ 0 ] = x;\tte[ 4 ] = 0;\tte[ 8 ] = a;\tte[ 12 ] = 0;\n\t\t\tte[ 1 ] = 0;\tte[ 5 ] = y;\tte[ 9 ] = b;\tte[ 13 ] = 0;\n\t\t\tte[ 2 ] = 0;\tte[ 6 ] = 0;\tte[ 10 ] = c;\tte[ 14 ] = d;\n\t\t\tte[ 3 ] = 0;\tte[ 7 ] = 0;\tte[ 11 ] = - 1;\tte[ 15 ] = 0;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeOrthographic: function ( left, right, top, bottom, near, far ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar w = 1.0 / ( right - left );\n\t\t\tvar h = 1.0 / ( top - bottom );\n\t\t\tvar p = 1.0 / ( far - near );\n\n\t\t\tvar x = ( right + left ) * w;\n\t\t\tvar y = ( top + bottom ) * h;\n\t\t\tvar z = ( far + near ) * p;\n\n\t\t\tte[ 0 ] = 2 * w;\tte[ 4 ] = 0;\tte[ 8 ] = 0;\tte[ 12 ] = - x;\n\t\t\tte[ 1 ] = 0;\tte[ 5 ] = 2 * h;\tte[ 9 ] = 0;\tte[ 13 ] = - y;\n\t\t\tte[ 2 ] = 0;\tte[ 6 ] = 0;\tte[ 10 ] = - 2 * p;\tte[ 14 ] = - z;\n\t\t\tte[ 3 ] = 0;\tte[ 7 ] = 0;\tte[ 11 ] = 0;\tte[ 15 ] = 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( matrix ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = matrix.elements;\n\n\t\t\tfor ( var i = 0; i < 16; i ++ ) {\n\n\t\t\t\tif ( te[ i ] !== me[ i ] ) return false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tfor ( var i = 0; i < 16; i ++ ) {\n\n\t\t\t\tthis.elements[ i ] = array[ i + offset ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tvar te = this.elements;\n\n\t\t\tarray[ offset ] = te[ 0 ];\n\t\t\tarray[ offset + 1 ] = te[ 1 ];\n\t\t\tarray[ offset + 2 ] = te[ 2 ];\n\t\t\tarray[ offset + 3 ] = te[ 3 ];\n\n\t\t\tarray[ offset + 4 ] = te[ 4 ];\n\t\t\tarray[ offset + 5 ] = te[ 5 ];\n\t\t\tarray[ offset + 6 ] = te[ 6 ];\n\t\t\tarray[ offset + 7 ] = te[ 7 ];\n\n\t\t\tarray[ offset + 8 ] = te[ 8 ];\n\t\t\tarray[ offset + 9 ] = te[ 9 ];\n\t\t\tarray[ offset + 10 ] = te[ 10 ];\n\t\t\tarray[ offset + 11 ] = te[ 11 ];\n\n\t\t\tarray[ offset + 12 ] = te[ 12 ];\n\t\t\tarray[ offset + 13 ] = te[ 13 ];\n\t\t\tarray[ offset + 14 ] = te[ 14 ];\n\t\t\tarray[ offset + 15 ] = te[ 15 ];\n\n\t\t\treturn array;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Quaternion( x, y, z, w ) {\n\n\t\tthis._x = x || 0;\n\t\tthis._y = y || 0;\n\t\tthis._z = z || 0;\n\t\tthis._w = ( w !== undefined ) ? w : 1;\n\n\t}\n\n\tObject.assign( Quaternion, {\n\n\t\tslerp: function ( qa, qb, qm, t ) {\n\n\t\t\treturn qm.copy( qa ).slerp( qb, t );\n\n\t\t},\n\n\t\tslerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {\n\n\t\t\t// fuzz-free, array-based Quaternion SLERP operation\n\n\t\t\tvar x0 = src0[ srcOffset0 + 0 ],\n\t\t\t\ty0 = src0[ srcOffset0 + 1 ],\n\t\t\t\tz0 = src0[ srcOffset0 + 2 ],\n\t\t\t\tw0 = src0[ srcOffset0 + 3 ],\n\n\t\t\t\tx1 = src1[ srcOffset1 + 0 ],\n\t\t\t\ty1 = src1[ srcOffset1 + 1 ],\n\t\t\t\tz1 = src1[ srcOffset1 + 2 ],\n\t\t\t\tw1 = src1[ srcOffset1 + 3 ];\n\n\t\t\tif ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {\n\n\t\t\t\tvar s = 1 - t,\n\n\t\t\t\t\tcos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,\n\n\t\t\t\t\tdir = ( cos >= 0 ? 1 : - 1 ),\n\t\t\t\t\tsqrSin = 1 - cos * cos;\n\n\t\t\t\t// Skip the Slerp for tiny steps to avoid numeric problems:\n\t\t\t\tif ( sqrSin > Number.EPSILON ) {\n\n\t\t\t\t\tvar sin = Math.sqrt( sqrSin ),\n\t\t\t\t\t\tlen = Math.atan2( sin, cos * dir );\n\n\t\t\t\t\ts = Math.sin( s * len ) / sin;\n\t\t\t\t\tt = Math.sin( t * len ) / sin;\n\n\t\t\t\t}\n\n\t\t\t\tvar tDir = t * dir;\n\n\t\t\t\tx0 = x0 * s + x1 * tDir;\n\t\t\t\ty0 = y0 * s + y1 * tDir;\n\t\t\t\tz0 = z0 * s + z1 * tDir;\n\t\t\t\tw0 = w0 * s + w1 * tDir;\n\n\t\t\t\t// Normalize in case we just did a lerp:\n\t\t\t\tif ( s === 1 - t ) {\n\n\t\t\t\t\tvar f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );\n\n\t\t\t\t\tx0 *= f;\n\t\t\t\t\ty0 *= f;\n\t\t\t\t\tz0 *= f;\n\t\t\t\t\tw0 *= f;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tdst[ dstOffset ] = x0;\n\t\t\tdst[ dstOffset + 1 ] = y0;\n\t\t\tdst[ dstOffset + 2 ] = z0;\n\t\t\tdst[ dstOffset + 3 ] = w0;\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( Quaternion.prototype, {\n\n\t\tx: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._x;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._x = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\ty: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._y;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._y = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\tz: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._z;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._z = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\tw: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._w;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._w = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Quaternion.prototype, {\n\n\t\tset: function ( x, y, z, w ) {\n\n\t\t\tthis._x = x;\n\t\t\tthis._y = y;\n\t\t\tthis._z = z;\n\t\t\tthis._w = w;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this._x, this._y, this._z, this._w );\n\n\t\t},\n\n\t\tcopy: function ( quaternion ) {\n\n\t\t\tthis._x = quaternion.x;\n\t\t\tthis._y = quaternion.y;\n\t\t\tthis._z = quaternion.z;\n\t\t\tthis._w = quaternion.w;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromEuler: function ( euler, update ) {\n\n\t\t\tif ( ! ( euler && euler.isEuler ) ) {\n\n\t\t\t\tthrow new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t}\n\n\t\t\tvar x = euler._x, y = euler._y, z = euler._z, order = euler.order;\n\n\t\t\t// http://www.mathworks.com/matlabcentral/fileexchange/\n\t\t\t// \t20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/\n\t\t\t//\tcontent/SpinCalc.m\n\n\t\t\tvar cos = Math.cos;\n\t\t\tvar sin = Math.sin;\n\n\t\t\tvar c1 = cos( x / 2 );\n\t\t\tvar c2 = cos( y / 2 );\n\t\t\tvar c3 = cos( z / 2 );\n\n\t\t\tvar s1 = sin( x / 2 );\n\t\t\tvar s2 = sin( y / 2 );\n\t\t\tvar s3 = sin( z / 2 );\n\n\t\t\tif ( order === 'XYZ' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'YXZ' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'ZXY' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'ZYX' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'YZX' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'XZY' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t}\n\n\t\t\tif ( update !== false ) this.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromAxisAngle: function ( axis, angle ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm\n\n\t\t\t// assumes axis is normalized\n\n\t\t\tvar halfAngle = angle / 2, s = Math.sin( halfAngle );\n\n\t\t\tthis._x = axis.x * s;\n\t\t\tthis._y = axis.y * s;\n\t\t\tthis._z = axis.z * s;\n\t\t\tthis._w = Math.cos( halfAngle );\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromRotationMatrix: function ( m ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar te = m.elements,\n\n\t\t\t\tm11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],\n\t\t\t\tm21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],\n\t\t\t\tm31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],\n\n\t\t\t\ttrace = m11 + m22 + m33,\n\t\t\t\ts;\n\n\t\t\tif ( trace > 0 ) {\n\n\t\t\t\ts = 0.5 / Math.sqrt( trace + 1.0 );\n\n\t\t\t\tthis._w = 0.25 / s;\n\t\t\t\tthis._x = ( m32 - m23 ) * s;\n\t\t\t\tthis._y = ( m13 - m31 ) * s;\n\t\t\t\tthis._z = ( m21 - m12 ) * s;\n\n\t\t\t} else if ( m11 > m22 && m11 > m33 ) {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );\n\n\t\t\t\tthis._w = ( m32 - m23 ) / s;\n\t\t\t\tthis._x = 0.25 * s;\n\t\t\t\tthis._y = ( m12 + m21 ) / s;\n\t\t\t\tthis._z = ( m13 + m31 ) / s;\n\n\t\t\t} else if ( m22 > m33 ) {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );\n\n\t\t\t\tthis._w = ( m13 - m31 ) / s;\n\t\t\t\tthis._x = ( m12 + m21 ) / s;\n\t\t\t\tthis._y = 0.25 * s;\n\t\t\t\tthis._z = ( m23 + m32 ) / s;\n\n\t\t\t} else {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );\n\n\t\t\t\tthis._w = ( m21 - m12 ) / s;\n\t\t\t\tthis._x = ( m13 + m31 ) / s;\n\t\t\t\tthis._y = ( m23 + m32 ) / s;\n\t\t\t\tthis._z = 0.25 * s;\n\n\t\t\t}\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromUnitVectors: function () {\n\n\t\t\t// assumes direction vectors vFrom and vTo are normalized\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar r;\n\n\t\t\tvar EPS = 0.000001;\n\n\t\t\treturn function setFromUnitVectors( vFrom, vTo ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\n\t\t\t\tr = vFrom.dot( vTo ) + 1;\n\n\t\t\t\tif ( r < EPS ) {\n\n\t\t\t\t\tr = 0;\n\n\t\t\t\t\tif ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {\n\n\t\t\t\t\t\tv1.set( - vFrom.y, vFrom.x, 0 );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tv1.set( 0, - vFrom.z, vFrom.y );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tv1.crossVectors( vFrom, vTo );\n\n\t\t\t\t}\n\n\t\t\t\tthis._x = v1.x;\n\t\t\t\tthis._y = v1.y;\n\t\t\t\tthis._z = v1.z;\n\t\t\t\tthis._w = r;\n\n\t\t\t\treturn this.normalize();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tangleTo: function ( q ) {\n\n\t\t\treturn 2 * Math.acos( Math.abs( _Math.clamp( this.dot( q ), - 1, 1 ) ) );\n\n\t\t},\n\n\t\trotateTowards: function ( q, step ) {\n\n\t\t\tvar angle = this.angleTo( q );\n\n\t\t\tif ( angle === 0 ) return this;\n\n\t\t\tvar t = Math.min( 1, step / angle );\n\n\t\t\tthis.slerp( q, t );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tinverse: function () {\n\n\t\t\t// quaternion is assumed to have unit length\n\n\t\t\treturn this.conjugate();\n\n\t\t},\n\n\t\tconjugate: function () {\n\n\t\t\tthis._x *= - 1;\n\t\t\tthis._y *= - 1;\n\t\t\tthis._z *= - 1;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\tvar l = this.length();\n\n\t\t\tif ( l === 0 ) {\n\n\t\t\t\tthis._x = 0;\n\t\t\t\tthis._y = 0;\n\t\t\t\tthis._z = 0;\n\t\t\t\tthis._w = 1;\n\n\t\t\t} else {\n\n\t\t\t\tl = 1 / l;\n\n\t\t\t\tthis._x = this._x * l;\n\t\t\t\tthis._y = this._y * l;\n\t\t\t\tthis._z = this._z * l;\n\t\t\t\tthis._w = this._w * l;\n\n\t\t\t}\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( q, p ) {\n\n\t\t\tif ( p !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );\n\t\t\t\treturn this.multiplyQuaternions( q, p );\n\n\t\t\t}\n\n\t\t\treturn this.multiplyQuaternions( this, q );\n\n\t\t},\n\n\t\tpremultiply: function ( q ) {\n\n\t\t\treturn this.multiplyQuaternions( q, this );\n\n\t\t},\n\n\t\tmultiplyQuaternions: function ( a, b ) {\n\n\t\t\t// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm\n\n\t\t\tvar qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;\n\t\t\tvar qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;\n\n\t\t\tthis._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;\n\t\t\tthis._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;\n\t\t\tthis._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;\n\t\t\tthis._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tslerp: function ( qb, t ) {\n\n\t\t\tif ( t === 0 ) return this;\n\t\t\tif ( t === 1 ) return this.copy( qb );\n\n\t\t\tvar x = this._x, y = this._y, z = this._z, w = this._w;\n\n\t\t\t// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/\n\n\t\t\tvar cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;\n\n\t\t\tif ( cosHalfTheta < 0 ) {\n\n\t\t\t\tthis._w = - qb._w;\n\t\t\t\tthis._x = - qb._x;\n\t\t\t\tthis._y = - qb._y;\n\t\t\t\tthis._z = - qb._z;\n\n\t\t\t\tcosHalfTheta = - cosHalfTheta;\n\n\t\t\t} else {\n\n\t\t\t\tthis.copy( qb );\n\n\t\t\t}\n\n\t\t\tif ( cosHalfTheta >= 1.0 ) {\n\n\t\t\t\tthis._w = w;\n\t\t\t\tthis._x = x;\n\t\t\t\tthis._y = y;\n\t\t\t\tthis._z = z;\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;\n\n\t\t\tif ( sqrSinHalfTheta <= Number.EPSILON ) {\n\n\t\t\t\tvar s = 1 - t;\n\t\t\t\tthis._w = s * w + t * this._w;\n\t\t\t\tthis._x = s * x + t * this._x;\n\t\t\t\tthis._y = s * y + t * this._y;\n\t\t\t\tthis._z = s * z + t * this._z;\n\n\t\t\t\treturn this.normalize();\n\n\t\t\t}\n\n\t\t\tvar sinHalfTheta = Math.sqrt( sqrSinHalfTheta );\n\t\t\tvar halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );\n\t\t\tvar ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,\n\t\t\t\tratioB = Math.sin( t * halfTheta ) / sinHalfTheta;\n\n\t\t\tthis._w = ( w * ratioA + this._w * ratioB );\n\t\t\tthis._x = ( x * ratioA + this._x * ratioB );\n\t\t\tthis._y = ( y * ratioA + this._y * ratioB );\n\t\t\tthis._z = ( z * ratioA + this._z * ratioB );\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( quaternion ) {\n\n\t\t\treturn ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis._x = array[ offset ];\n\t\t\tthis._y = array[ offset + 1 ];\n\t\t\tthis._z = array[ offset + 2 ];\n\t\t\tthis._w = array[ offset + 3 ];\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this._x;\n\t\t\tarray[ offset + 1 ] = this._y;\n\t\t\tarray[ offset + 2 ] = this._z;\n\t\t\tarray[ offset + 3 ] = this._w;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tonChange: function ( callback ) {\n\n\t\t\tthis.onChangeCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonChangeCallback: function () {}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author kile / http://kile.stravaganza.org/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author egraether / http://egraether.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Vector3( x, y, z ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\t\tthis.z = z || 0;\n\n\t}\n\n\tObject.assign( Vector3.prototype, {\n\n\t\tisVector3: true,\n\n\t\tset: function ( x, y, z ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\t\t\tthis.z = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( z ) {\n\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tcase 2: this.z = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tcase 2: return this.z;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y, this.z );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\t\t\tthis.z = v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\t\t\tthis.z += v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\t\t\tthis.z += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\t\t\tthis.z = a.z + b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\t\t\tthis.z += v.z * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\t\t\tthis.z -= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\t\t\tthis.z -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\t\t\tthis.z = a.z - b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );\n\t\t\t\treturn this.multiplyVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x *= v.x;\n\t\t\tthis.y *= v.y;\n\t\t\tthis.z *= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tthis.x *= scalar;\n\t\t\tthis.y *= scalar;\n\t\t\tthis.z *= scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x * b.x;\n\t\t\tthis.y = a.y * b.y;\n\t\t\tthis.z = a.z * b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyEuler: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function applyEuler( euler ) {\n\n\t\t\t\tif ( ! ( euler && euler.isEuler ) ) {\n\n\t\t\t\t\tconsole.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.applyQuaternion( quaternion.setFromEuler( euler ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyAxisAngle: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function applyAxisAngle( axis, angle ) {\n\n\t\t\t\treturn this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyMatrix3: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;\n\t\t\tthis.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;\n\t\t\tthis.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tvar w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );\n\n\t\t\tthis.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;\n\t\t\tthis.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;\n\t\t\tthis.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyQuaternion: function ( q ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar qx = q.x, qy = q.y, qz = q.z, qw = q.w;\n\n\t\t\t// calculate quat * vector\n\n\t\t\tvar ix = qw * x + qy * z - qz * y;\n\t\t\tvar iy = qw * y + qz * x - qx * z;\n\t\t\tvar iz = qw * z + qx * y - qy * x;\n\t\t\tvar iw = - qx * x - qy * y - qz * z;\n\n\t\t\t// calculate result * inverse quat\n\n\t\t\tthis.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;\n\t\t\tthis.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;\n\t\t\tthis.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tproject: function () {\n\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function project( camera ) {\n\n\t\t\t\tmatrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );\n\t\t\t\treturn this.applyMatrix4( matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tunproject: function () {\n\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function unproject( camera ) {\n\n\t\t\t\tmatrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );\n\t\t\t\treturn this.applyMatrix4( matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttransformDirection: function ( m ) {\n\n\t\t\t// input: THREE.Matrix4 affine matrix\n\t\t\t// vector interpreted as a direction\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;\n\t\t\tthis.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;\n\t\t\tthis.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;\n\n\t\t\treturn this.normalize();\n\n\t\t},\n\n\t\tdivide: function ( v ) {\n\n\t\t\tthis.x /= v.x;\n\t\t\tthis.y /= v.y;\n\t\t\tthis.z /= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\t\t\tthis.z = Math.min( this.z, v.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\t\t\tthis.z = Math.max( this.z, v.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// assumes min < max, componentwise\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\t\t\tthis.z = Math.max( min.z, Math.min( max.z, this.z ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min = new Vector3();\n\t\t\tvar max = new Vector3();\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tmin.set( minVal, minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\t\t\tthis.z = Math.floor( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\t\t\tthis.z = Math.ceil( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\t\t\tthis.z = Math.round( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\t\t\tthis.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\t\t\tthis.z = - this.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y + this.z * v.z;\n\n\t\t},\n\n\t\t// TODO lengthSquared?\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y + this.z * this.z;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );\n\n\t\t},\n\n\t\tmanhattanLength: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() || 1 );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.normalize().multiplyScalar( length );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\t\t\tthis.z += ( v.z - this.z ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tcross: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );\n\t\t\t\treturn this.crossVectors( v, w );\n\n\t\t\t}\n\n\t\t\treturn this.crossVectors( this, v );\n\n\t\t},\n\n\t\tcrossVectors: function ( a, b ) {\n\n\t\t\tvar ax = a.x, ay = a.y, az = a.z;\n\t\t\tvar bx = b.x, by = b.y, bz = b.z;\n\n\t\t\tthis.x = ay * bz - az * by;\n\t\t\tthis.y = az * bx - ax * bz;\n\t\t\tthis.z = ax * by - ay * bx;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tprojectOnVector: function ( vector ) {\n\n\t\t\tvar scalar = vector.dot( this ) / vector.lengthSq();\n\n\t\t\treturn this.copy( vector ).multiplyScalar( scalar );\n\n\t\t},\n\n\t\tprojectOnPlane: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function projectOnPlane( planeNormal ) {\n\n\t\t\t\tv1.copy( this ).projectOnVector( planeNormal );\n\n\t\t\t\treturn this.sub( v1 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\treflect: function () {\n\n\t\t\t// reflect incident vector off plane orthogonal to normal\n\t\t\t// normal is assumed to have unit length\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function reflect( normal ) {\n\n\t\t\t\treturn this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tangleTo: function ( v ) {\n\n\t\t\tvar theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );\n\n\t\t\t// clamp, to handle numerical problems\n\n\t\t\treturn Math.acos( _Math.clamp( theta, - 1, 1 ) );\n\n\t\t},\n\n\t\tdistanceTo: function ( v ) {\n\n\t\t\treturn Math.sqrt( this.distanceToSquared( v ) );\n\n\t\t},\n\n\t\tdistanceToSquared: function ( v ) {\n\n\t\t\tvar dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;\n\n\t\t\treturn dx * dx + dy * dy + dz * dz;\n\n\t\t},\n\n\t\tmanhattanDistanceTo: function ( v ) {\n\n\t\t\treturn Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );\n\n\t\t},\n\n\t\tsetFromSpherical: function ( s ) {\n\n\t\t\tvar sinPhiRadius = Math.sin( s.phi ) * s.radius;\n\n\t\t\tthis.x = sinPhiRadius * Math.sin( s.theta );\n\t\t\tthis.y = Math.cos( s.phi ) * s.radius;\n\t\t\tthis.z = sinPhiRadius * Math.cos( s.theta );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCylindrical: function ( c ) {\n\n\t\t\tthis.x = c.radius * Math.sin( c.theta );\n\t\t\tthis.y = c.y;\n\t\t\tthis.z = c.radius * Math.cos( c.theta );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixPosition: function ( m ) {\n\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 12 ];\n\t\t\tthis.y = e[ 13 ];\n\t\t\tthis.z = e[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixScale: function ( m ) {\n\n\t\t\tvar sx = this.setFromMatrixColumn( m, 0 ).length();\n\t\t\tvar sy = this.setFromMatrixColumn( m, 1 ).length();\n\t\t\tvar sz = this.setFromMatrixColumn( m, 2 ).length();\n\n\t\t\tthis.x = sx;\n\t\t\tthis.y = sy;\n\t\t\tthis.z = sz;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixColumn: function ( m, index ) {\n\n\t\t\treturn this.fromArray( m.elements, index * 4 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\t\t\tthis.z = array[ offset + 2 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\t\t\tarray[ offset + 2 ] = this.z;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromBufferAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );\n\n\t\t\t}\n\n\t\t\tthis.x = attribute.getX( index );\n\t\t\tthis.y = attribute.getY( index );\n\t\t\tthis.z = attribute.getZ( index );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t * @author tschw\n\t */\n\n\tfunction Matrix3() {\n\n\t\tthis.elements = [\n\n\t\t\t1, 0, 0,\n\t\t\t0, 1, 0,\n\t\t\t0, 0, 1\n\n\t\t];\n\n\t\tif ( arguments.length > 0 ) {\n\n\t\t\tconsole.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );\n\n\t\t}\n\n\t}\n\n\tObject.assign( Matrix3.prototype, {\n\n\t\tisMatrix3: true,\n\n\t\tset: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;\n\t\t\tte[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;\n\t\t\tte[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tidentity: function () {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0,\n\t\t\t\t0, 1, 0,\n\t\t\t\t0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().fromArray( this.elements );\n\n\t\t},\n\n\t\tcopy: function ( m ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = m.elements;\n\n\t\t\tte[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];\n\t\t\tte[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];\n\t\t\tte[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrix4: function ( m ) {\n\n\t\t\tvar me = m.elements;\n\n\t\t\tthis.set(\n\n\t\t\t\tme[ 0 ], me[ 4 ], me[ 8 ],\n\t\t\t\tme[ 1 ], me[ 5 ], me[ 9 ],\n\t\t\t\tme[ 2 ], me[ 6 ], me[ 10 ]\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyToBufferAttribute: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function applyToBufferAttribute( attribute ) {\n\n\t\t\t\tfor ( var i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\t\tv1.x = attribute.getX( i );\n\t\t\t\t\tv1.y = attribute.getY( i );\n\t\t\t\t\tv1.z = attribute.getZ( i );\n\n\t\t\t\t\tv1.applyMatrix3( this );\n\n\t\t\t\t\tattribute.setXYZ( i, v1.x, v1.y, v1.z );\n\n\t\t\t\t}\n\n\t\t\t\treturn attribute;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmultiply: function ( m ) {\n\n\t\t\treturn this.multiplyMatrices( this, m );\n\n\t\t},\n\n\t\tpremultiply: function ( m ) {\n\n\t\t\treturn this.multiplyMatrices( m, this );\n\n\t\t},\n\n\t\tmultiplyMatrices: function ( a, b ) {\n\n\t\t\tvar ae = a.elements;\n\t\t\tvar be = b.elements;\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];\n\t\t\tvar a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];\n\t\t\tvar a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];\n\n\t\t\tvar b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];\n\t\t\tvar b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];\n\t\t\tvar b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];\n\n\t\t\tte[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;\n\t\t\tte[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;\n\t\t\tte[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;\n\n\t\t\tte[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;\n\t\t\tte[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;\n\t\t\tte[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;\n\n\t\t\tte[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;\n\t\t\tte[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;\n\t\t\tte[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;\n\t\t\tte[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;\n\t\t\tte[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdeterminant: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],\n\t\t\t\td = te[ 3 ], e = te[ 4 ], f = te[ 5 ],\n\t\t\t\tg = te[ 6 ], h = te[ 7 ], i = te[ 8 ];\n\n\t\t\treturn a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;\n\n\t\t},\n\n\t\tgetInverse: function ( matrix, throwOnDegenerate ) {\n\n\t\t\tif ( matrix && matrix.isMatrix4 ) {\n\n\t\t\t\tconsole.error( \"THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument.\" );\n\n\t\t\t}\n\n\t\t\tvar me = matrix.elements,\n\t\t\t\tte = this.elements,\n\n\t\t\t\tn11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],\n\t\t\t\tn12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],\n\t\t\t\tn13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],\n\n\t\t\t\tt11 = n33 * n22 - n32 * n23,\n\t\t\t\tt12 = n32 * n13 - n33 * n12,\n\t\t\t\tt13 = n23 * n12 - n22 * n13,\n\n\t\t\t\tdet = n11 * t11 + n21 * t12 + n31 * t13;\n\n\t\t\tif ( det === 0 ) {\n\n\t\t\t\tvar msg = \"THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0\";\n\n\t\t\t\tif ( throwOnDegenerate === true ) {\n\n\t\t\t\t\tthrow new Error( msg );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( msg );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.identity();\n\n\t\t\t}\n\n\t\t\tvar detInv = 1 / det;\n\n\t\t\tte[ 0 ] = t11 * detInv;\n\t\t\tte[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;\n\t\t\tte[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;\n\n\t\t\tte[ 3 ] = t12 * detInv;\n\t\t\tte[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;\n\t\t\tte[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;\n\n\t\t\tte[ 6 ] = t13 * detInv;\n\t\t\tte[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;\n\t\t\tte[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranspose: function () {\n\n\t\t\tvar tmp, m = this.elements;\n\n\t\t\ttmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;\n\t\t\ttmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;\n\t\t\ttmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetNormalMatrix: function ( matrix4 ) {\n\n\t\t\treturn this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();\n\n\t\t},\n\n\t\ttransposeIntoArray: function ( r ) {\n\n\t\t\tvar m = this.elements;\n\n\t\t\tr[ 0 ] = m[ 0 ];\n\t\t\tr[ 1 ] = m[ 3 ];\n\t\t\tr[ 2 ] = m[ 6 ];\n\t\t\tr[ 3 ] = m[ 1 ];\n\t\t\tr[ 4 ] = m[ 4 ];\n\t\t\tr[ 5 ] = m[ 7 ];\n\t\t\tr[ 6 ] = m[ 2 ];\n\t\t\tr[ 7 ] = m[ 5 ];\n\t\t\tr[ 8 ] = m[ 8 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetUvTransform: function ( tx, ty, sx, sy, rotation, cx, cy ) {\n\n\t\t\tvar c = Math.cos( rotation );\n\t\t\tvar s = Math.sin( rotation );\n\n\t\t\tthis.set(\n\t\t\t\tsx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,\n\t\t\t\t- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,\n\t\t\t\t0, 0, 1\n\t\t\t);\n\n\t\t},\n\n\t\tscale: function ( sx, sy ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;\n\t\t\tte[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotate: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta );\n\t\t\tvar s = Math.sin( theta );\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];\n\t\t\tvar a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];\n\n\t\t\tte[ 0 ] = c * a11 + s * a21;\n\t\t\tte[ 3 ] = c * a12 + s * a22;\n\t\t\tte[ 6 ] = c * a13 + s * a23;\n\n\t\t\tte[ 1 ] = - s * a11 + c * a21;\n\t\t\tte[ 4 ] = - s * a12 + c * a22;\n\t\t\tte[ 7 ] = - s * a13 + c * a23;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( tx, ty ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];\n\t\t\tte[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( matrix ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = matrix.elements;\n\n\t\t\tfor ( var i = 0; i < 9; i ++ ) {\n\n\t\t\t\tif ( te[ i ] !== me[ i ] ) return false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tfor ( var i = 0; i < 9; i ++ ) {\n\n\t\t\t\tthis.elements[ i ] = array[ i + offset ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tvar te = this.elements;\n\n\t\t\tarray[ offset ] = te[ 0 ];\n\t\t\tarray[ offset + 1 ] = te[ 1 ];\n\t\t\tarray[ offset + 2 ] = te[ 2 ];\n\n\t\t\tarray[ offset + 3 ] = te[ 3 ];\n\t\t\tarray[ offset + 4 ] = te[ 4 ];\n\t\t\tarray[ offset + 5 ] = te[ 5 ];\n\n\t\t\tarray[ offset + 6 ] = te[ 6 ];\n\t\t\tarray[ offset + 7 ] = te[ 7 ];\n\t\t\tarray[ offset + 8 ] = te[ 8 ];\n\n\t\t\treturn array;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t */\n\n\tvar ImageUtils = {\n\n\t\tgetDataURL: function ( image ) {\n\n\t\t\tvar canvas;\n\n\t\t\tif ( image instanceof HTMLCanvasElement ) {\n\n\t\t\t\tcanvas = image;\n\n\t\t\t} else {\n\n\t\t\t\tif ( typeof OffscreenCanvas !== 'undefined' ) {\n\n\t\t\t\t\tcanvas = new OffscreenCanvas( image.width, image.height );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcanvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\t\t\tcanvas.width = image.width;\n\t\t\t\t\tcanvas.height = image.height;\n\n\t\t\t\t}\n\n\t\t\t\tvar context = canvas.getContext( '2d' );\n\n\t\t\t\tif ( image instanceof ImageData ) {\n\n\t\t\t\t\tcontext.putImageData( image, 0, 0 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcontext.drawImage( image, 0, 0, image.width, image.height );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( canvas.width > 2048 || canvas.height > 2048 ) {\n\n\t\t\t\treturn canvas.toDataURL( 'image/jpeg', 0.6 );\n\n\t\t\t} else {\n\n\t\t\t\treturn canvas.toDataURL( 'image/png' );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t */\n\n\tvar textureId = 0;\n\n\tfunction Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {\n\n\t\tObject.defineProperty( this, 'id', { value: textureId ++ } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\n\t\tthis.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;\n\t\tthis.mipmaps = [];\n\n\t\tthis.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;\n\n\t\tthis.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;\n\t\tthis.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : LinearFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;\n\n\t\tthis.anisotropy = anisotropy !== undefined ? anisotropy : 1;\n\n\t\tthis.format = format !== undefined ? format : RGBAFormat;\n\t\tthis.type = type !== undefined ? type : UnsignedByteType;\n\n\t\tthis.offset = new Vector2( 0, 0 );\n\t\tthis.repeat = new Vector2( 1, 1 );\n\t\tthis.center = new Vector2( 0, 0 );\n\t\tthis.rotation = 0;\n\n\t\tthis.matrixAutoUpdate = true;\n\t\tthis.matrix = new Matrix3();\n\n\t\tthis.generateMipmaps = true;\n\t\tthis.premultiplyAlpha = false;\n\t\tthis.flipY = true;\n\t\tthis.unpackAlignment = 4;\t// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)\n\n\t\t// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.\n\t\t//\n\t\t// Also changing the encoding after already used by a Material will not automatically make the Material\n\t\t// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.\n\t\tthis.encoding = encoding !== undefined ? encoding : LinearEncoding;\n\n\t\tthis.version = 0;\n\t\tthis.onUpdate = null;\n\n\t}\n\n\tTexture.DEFAULT_IMAGE = undefined;\n\tTexture.DEFAULT_MAPPING = UVMapping;\n\n\tTexture.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Texture,\n\n\t\tisTexture: true,\n\n\t\tupdateMatrix: function () {\n\n\t\t\tthis.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.image = source.image;\n\t\t\tthis.mipmaps = source.mipmaps.slice( 0 );\n\n\t\t\tthis.mapping = source.mapping;\n\n\t\t\tthis.wrapS = source.wrapS;\n\t\t\tthis.wrapT = source.wrapT;\n\n\t\t\tthis.magFilter = source.magFilter;\n\t\t\tthis.minFilter = source.minFilter;\n\n\t\t\tthis.anisotropy = source.anisotropy;\n\n\t\t\tthis.format = source.format;\n\t\t\tthis.type = source.type;\n\n\t\t\tthis.offset.copy( source.offset );\n\t\t\tthis.repeat.copy( source.repeat );\n\t\t\tthis.center.copy( source.center );\n\t\t\tthis.rotation = source.rotation;\n\n\t\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\t\t\tthis.matrix.copy( source.matrix );\n\n\t\t\tthis.generateMipmaps = source.generateMipmaps;\n\t\t\tthis.premultiplyAlpha = source.premultiplyAlpha;\n\t\t\tthis.flipY = source.flipY;\n\t\t\tthis.unpackAlignment = source.unpackAlignment;\n\t\t\tthis.encoding = source.encoding;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar isRootObject = ( meta === undefined || typeof meta === 'string' );\n\n\t\t\tif ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {\n\n\t\t\t\treturn meta.textures[ this.uuid ];\n\n\t\t\t}\n\n\t\t\tvar output = {\n\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Texture',\n\t\t\t\t\tgenerator: 'Texture.toJSON'\n\t\t\t\t},\n\n\t\t\t\tuuid: this.uuid,\n\t\t\t\tname: this.name,\n\n\t\t\t\tmapping: this.mapping,\n\n\t\t\t\trepeat: [ this.repeat.x, this.repeat.y ],\n\t\t\t\toffset: [ this.offset.x, this.offset.y ],\n\t\t\t\tcenter: [ this.center.x, this.center.y ],\n\t\t\t\trotation: this.rotation,\n\n\t\t\t\twrap: [ this.wrapS, this.wrapT ],\n\n\t\t\t\tformat: this.format,\n\t\t\t\tminFilter: this.minFilter,\n\t\t\t\tmagFilter: this.magFilter,\n\t\t\t\tanisotropy: this.anisotropy,\n\n\t\t\t\tflipY: this.flipY\n\n\t\t\t};\n\n\t\t\tif ( this.image !== undefined ) {\n\n\t\t\t\t// TODO: Move to THREE.Image\n\n\t\t\t\tvar image = this.image;\n\n\t\t\t\tif ( image.uuid === undefined ) {\n\n\t\t\t\t\timage.uuid = _Math.generateUUID(); // UGH\n\n\t\t\t\t}\n\n\t\t\t\tif ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {\n\n\t\t\t\t\tvar url;\n\n\t\t\t\t\tif ( Array.isArray( image ) ) {\n\n\t\t\t\t\t\t// process array of images e.g. CubeTexture\n\n\t\t\t\t\t\turl = [];\n\n\t\t\t\t\t\tfor ( var i = 0, l = image.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\turl.push( ImageUtils.getDataURL( image[ i ] ) );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// process single image\n\n\t\t\t\t\t\turl = ImageUtils.getDataURL( image );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tmeta.images[ image.uuid ] = {\n\t\t\t\t\t\tuuid: image.uuid,\n\t\t\t\t\t\turl: url\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t\toutput.image = image.uuid;\n\n\t\t\t}\n\n\t\t\tif ( ! isRootObject ) {\n\n\t\t\t\tmeta.textures[ this.uuid ] = output;\n\n\t\t\t}\n\n\t\t\treturn output;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t},\n\n\t\ttransformUv: function ( uv ) {\n\n\t\t\tif ( this.mapping !== UVMapping ) return;\n\n\t\t\tuv.applyMatrix3( this.matrix );\n\n\t\t\tif ( uv.x < 0 || uv.x > 1 ) {\n\n\t\t\t\tswitch ( this.wrapS ) {\n\n\t\t\t\t\tcase RepeatWrapping:\n\n\t\t\t\t\t\tuv.x = uv.x - Math.floor( uv.x );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase ClampToEdgeWrapping:\n\n\t\t\t\t\t\tuv.x = uv.x < 0 ? 0 : 1;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase MirroredRepeatWrapping:\n\n\t\t\t\t\t\tif ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {\n\n\t\t\t\t\t\t\tuv.x = Math.ceil( uv.x ) - uv.x;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tuv.x = uv.x - Math.floor( uv.x );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( uv.y < 0 || uv.y > 1 ) {\n\n\t\t\t\tswitch ( this.wrapT ) {\n\n\t\t\t\t\tcase RepeatWrapping:\n\n\t\t\t\t\t\tuv.y = uv.y - Math.floor( uv.y );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase ClampToEdgeWrapping:\n\n\t\t\t\t\t\tuv.y = uv.y < 0 ? 0 : 1;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase MirroredRepeatWrapping:\n\n\t\t\t\t\t\tif ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {\n\n\t\t\t\t\t\t\tuv.y = Math.ceil( uv.y ) - uv.y;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tuv.y = uv.y - Math.floor( uv.y );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.flipY ) {\n\n\t\t\t\tuv.y = 1 - uv.y;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperty( Texture.prototype, \"needsUpdate\", {\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author egraether / http://egraether.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Vector4( x, y, z, w ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\t\tthis.z = z || 0;\n\t\tthis.w = ( w !== undefined ) ? w : 1;\n\n\t}\n\n\tObject.assign( Vector4.prototype, {\n\n\t\tisVector4: true,\n\n\t\tset: function ( x, y, z, w ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\t\t\tthis.z = z;\n\t\t\tthis.w = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\t\t\tthis.z = scalar;\n\t\t\tthis.w = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( z ) {\n\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetW: function ( w ) {\n\n\t\t\tthis.w = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tcase 2: this.z = value; break;\n\t\t\t\tcase 3: this.w = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tcase 2: return this.z;\n\t\t\t\tcase 3: return this.w;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y, this.z, this.w );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\t\t\tthis.z = v.z;\n\t\t\tthis.w = ( v.w !== undefined ) ? v.w : 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\t\t\tthis.z += v.z;\n\t\t\tthis.w += v.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\t\t\tthis.z += s;\n\t\t\tthis.w += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\t\t\tthis.z = a.z + b.z;\n\t\t\tthis.w = a.w + b.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\t\t\tthis.z += v.z * s;\n\t\t\tthis.w += v.w * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\t\t\tthis.z -= v.z;\n\t\t\tthis.w -= v.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\t\t\tthis.z -= s;\n\t\t\tthis.w -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\t\t\tthis.z = a.z - b.z;\n\t\t\tthis.w = a.w - b.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tthis.x *= scalar;\n\t\t\tthis.y *= scalar;\n\t\t\tthis.z *= scalar;\n\t\t\tthis.w *= scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z, w = this.w;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;\n\t\t\tthis.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;\n\t\t\tthis.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;\n\t\t\tthis.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tsetAxisAngleFromQuaternion: function ( q ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm\n\n\t\t\t// q is assumed to be normalized\n\n\t\t\tthis.w = 2 * Math.acos( q.w );\n\n\t\t\tvar s = Math.sqrt( 1 - q.w * q.w );\n\n\t\t\tif ( s < 0.0001 ) {\n\n\t\t\t\tthis.x = 1;\n\t\t\t\tthis.y = 0;\n\t\t\t\tthis.z = 0;\n\n\t\t\t} else {\n\n\t\t\t\tthis.x = q.x / s;\n\t\t\t\tthis.y = q.y / s;\n\t\t\t\tthis.z = q.z / s;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetAxisAngleFromRotationMatrix: function ( m ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar angle, x, y, z,\t\t// variables for result\n\t\t\t\tepsilon = 0.01,\t\t// margin to allow for rounding errors\n\t\t\t\tepsilon2 = 0.1,\t\t// margin to distinguish between 0 and 180 degrees\n\n\t\t\t\tte = m.elements,\n\n\t\t\t\tm11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],\n\t\t\t\tm21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],\n\t\t\t\tm31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];\n\n\t\t\tif ( ( Math.abs( m12 - m21 ) < epsilon ) &&\n\t\t\t ( Math.abs( m13 - m31 ) < epsilon ) &&\n\t\t\t ( Math.abs( m23 - m32 ) < epsilon ) ) {\n\n\t\t\t\t// singularity found\n\t\t\t\t// first check for identity matrix which must have +1 for all terms\n\t\t\t\t// in leading diagonal and zero in other terms\n\n\t\t\t\tif ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m13 + m31 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m23 + m32 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {\n\n\t\t\t\t\t// this singularity is identity matrix so angle = 0\n\n\t\t\t\t\tthis.set( 1, 0, 0, 0 );\n\n\t\t\t\t\treturn this; // zero angle, arbitrary axis\n\n\t\t\t\t}\n\n\t\t\t\t// otherwise this singularity is angle = 180\n\n\t\t\t\tangle = Math.PI;\n\n\t\t\t\tvar xx = ( m11 + 1 ) / 2;\n\t\t\t\tvar yy = ( m22 + 1 ) / 2;\n\t\t\t\tvar zz = ( m33 + 1 ) / 2;\n\t\t\t\tvar xy = ( m12 + m21 ) / 4;\n\t\t\t\tvar xz = ( m13 + m31 ) / 4;\n\t\t\t\tvar yz = ( m23 + m32 ) / 4;\n\n\t\t\t\tif ( ( xx > yy ) && ( xx > zz ) ) {\n\n\t\t\t\t\t// m11 is the largest diagonal term\n\n\t\t\t\t\tif ( xx < epsilon ) {\n\n\t\t\t\t\t\tx = 0;\n\t\t\t\t\t\ty = 0.707106781;\n\t\t\t\t\t\tz = 0.707106781;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tx = Math.sqrt( xx );\n\t\t\t\t\t\ty = xy / x;\n\t\t\t\t\t\tz = xz / x;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( yy > zz ) {\n\n\t\t\t\t\t// m22 is the largest diagonal term\n\n\t\t\t\t\tif ( yy < epsilon ) {\n\n\t\t\t\t\t\tx = 0.707106781;\n\t\t\t\t\t\ty = 0;\n\t\t\t\t\t\tz = 0.707106781;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ty = Math.sqrt( yy );\n\t\t\t\t\t\tx = xy / y;\n\t\t\t\t\t\tz = yz / y;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// m33 is the largest diagonal term so base result on this\n\n\t\t\t\t\tif ( zz < epsilon ) {\n\n\t\t\t\t\t\tx = 0.707106781;\n\t\t\t\t\t\ty = 0.707106781;\n\t\t\t\t\t\tz = 0;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tz = Math.sqrt( zz );\n\t\t\t\t\t\tx = xz / z;\n\t\t\t\t\t\ty = yz / z;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.set( x, y, z, angle );\n\n\t\t\t\treturn this; // return 180 deg rotation\n\n\t\t\t}\n\n\t\t\t// as we have reached here there are no singularities so we can handle normally\n\n\t\t\tvar s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +\n\t\t\t ( m13 - m31 ) * ( m13 - m31 ) +\n\t\t\t ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize\n\n\t\t\tif ( Math.abs( s ) < 0.001 ) s = 1;\n\n\t\t\t// prevent divide by zero, should not happen if matrix is orthogonal and should be\n\t\t\t// caught by singularity test above, but I've left it in just in case\n\n\t\t\tthis.x = ( m32 - m23 ) / s;\n\t\t\tthis.y = ( m13 - m31 ) / s;\n\t\t\tthis.z = ( m21 - m12 ) / s;\n\t\t\tthis.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\t\t\tthis.z = Math.min( this.z, v.z );\n\t\t\tthis.w = Math.min( this.w, v.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\t\t\tthis.z = Math.max( this.z, v.z );\n\t\t\tthis.w = Math.max( this.w, v.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// assumes min < max, componentwise\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\t\t\tthis.z = Math.max( min.z, Math.min( max.z, this.z ) );\n\t\t\tthis.w = Math.max( min.w, Math.min( max.w, this.w ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min, max;\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tif ( min === undefined ) {\n\n\t\t\t\t\tmin = new Vector4();\n\t\t\t\t\tmax = new Vector4();\n\n\t\t\t\t}\n\n\t\t\t\tmin.set( minVal, minVal, minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal, maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\t\t\tthis.z = Math.floor( this.z );\n\t\t\tthis.w = Math.floor( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\t\t\tthis.z = Math.ceil( this.z );\n\t\t\tthis.w = Math.ceil( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\t\t\tthis.z = Math.round( this.z );\n\t\t\tthis.w = Math.round( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\t\t\tthis.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );\n\t\t\tthis.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\t\t\tthis.z = - this.z;\n\t\t\tthis.w = - this.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );\n\n\t\t},\n\n\t\tmanhattanLength: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() || 1 );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.normalize().multiplyScalar( length );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\t\t\tthis.z += ( v.z - this.z ) * alpha;\n\t\t\tthis.w += ( v.w - this.w ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\t\t\tthis.z = array[ offset + 2 ];\n\t\t\tthis.w = array[ offset + 3 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\t\t\tarray[ offset + 2 ] = this.z;\n\t\t\tarray[ offset + 3 ] = this.w;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromBufferAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );\n\n\t\t\t}\n\n\t\t\tthis.x = attribute.getX( index );\n\t\t\tthis.y = attribute.getY( index );\n\t\t\tthis.z = attribute.getZ( index );\n\t\t\tthis.w = attribute.getW( index );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author szimek / https://github.com/szimek/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author Marius Kintel / https://github.com/kintel\n\t */\n\n\t/*\n\t In options, we can specify:\n\t * Texture parameters for an auto-generated target texture\n\t * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers\n\t*/\n\tfunction WebGLRenderTarget( width, height, options ) {\n\n\t\tthis.width = width;\n\t\tthis.height = height;\n\n\t\tthis.scissor = new Vector4( 0, 0, width, height );\n\t\tthis.scissorTest = false;\n\n\t\tthis.viewport = new Vector4( 0, 0, width, height );\n\n\t\toptions = options || {};\n\n\t\tif ( options.minFilter === undefined ) options.minFilter = LinearFilter;\n\n\t\tthis.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );\n\n\t\tthis.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : true;\n\n\t\tthis.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;\n\t\tthis.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;\n\t\tthis.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;\n\n\t}\n\n\tWebGLRenderTarget.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: WebGLRenderTarget,\n\n\t\tisWebGLRenderTarget: true,\n\n\t\tsetSize: function ( width, height ) {\n\n\t\t\tif ( this.width !== width || this.height !== height ) {\n\n\t\t\t\tthis.width = width;\n\t\t\t\tthis.height = height;\n\n\t\t\t\tthis.dispose();\n\n\t\t\t}\n\n\t\t\tthis.viewport.set( 0, 0, width, height );\n\t\t\tthis.scissor.set( 0, 0, width, height );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.width = source.width;\n\t\t\tthis.height = source.height;\n\n\t\t\tthis.viewport.copy( source.viewport );\n\n\t\t\tthis.texture = source.texture.clone();\n\n\t\t\tthis.depthBuffer = source.depthBuffer;\n\t\t\tthis.stencilBuffer = source.stencilBuffer;\n\t\t\tthis.depthTexture = source.depthTexture;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com\n\t */\n\n\tfunction WebGLRenderTargetCube( width, height, options ) {\n\n\t\tWebGLRenderTarget.call( this, width, height, options );\n\n\t\tthis.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5\n\t\tthis.activeMipMapLevel = 0;\n\n\t}\n\n\tWebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );\n\tWebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;\n\n\tWebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.image = { data: data, width: width, height: height };\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : NearestFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : NearestFilter;\n\n\t\tthis.generateMipmaps = false;\n\t\tthis.flipY = false;\n\t\tthis.unpackAlignment = 1;\n\n\t}\n\n\tDataTexture.prototype = Object.create( Texture.prototype );\n\tDataTexture.prototype.constructor = DataTexture;\n\n\tDataTexture.prototype.isDataTexture = true;\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Box3( min, max ) {\n\n\t\tthis.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );\n\t\tthis.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );\n\n\t}\n\n\tObject.assign( Box3.prototype, {\n\n\t\tisBox3: true,\n\n\t\tset: function ( min, max ) {\n\n\t\t\tthis.min.copy( min );\n\t\t\tthis.max.copy( max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromArray: function ( array ) {\n\n\t\t\tvar minX = + Infinity;\n\t\t\tvar minY = + Infinity;\n\t\t\tvar minZ = + Infinity;\n\n\t\t\tvar maxX = - Infinity;\n\t\t\tvar maxY = - Infinity;\n\t\t\tvar maxZ = - Infinity;\n\n\t\t\tfor ( var i = 0, l = array.length; i < l; i += 3 ) {\n\n\t\t\t\tvar x = array[ i ];\n\t\t\t\tvar y = array[ i + 1 ];\n\t\t\t\tvar z = array[ i + 2 ];\n\n\t\t\t\tif ( x < minX ) minX = x;\n\t\t\t\tif ( y < minY ) minY = y;\n\t\t\t\tif ( z < minZ ) minZ = z;\n\n\t\t\t\tif ( x > maxX ) maxX = x;\n\t\t\t\tif ( y > maxY ) maxY = y;\n\t\t\t\tif ( z > maxZ ) maxZ = z;\n\n\t\t\t}\n\n\t\t\tthis.min.set( minX, minY, minZ );\n\t\t\tthis.max.set( maxX, maxY, maxZ );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromBufferAttribute: function ( attribute ) {\n\n\t\t\tvar minX = + Infinity;\n\t\t\tvar minY = + Infinity;\n\t\t\tvar minZ = + Infinity;\n\n\t\t\tvar maxX = - Infinity;\n\t\t\tvar maxY = - Infinity;\n\t\t\tvar maxZ = - Infinity;\n\n\t\t\tfor ( var i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\tvar x = attribute.getX( i );\n\t\t\t\tvar y = attribute.getY( i );\n\t\t\t\tvar z = attribute.getZ( i );\n\n\t\t\t\tif ( x < minX ) minX = x;\n\t\t\t\tif ( y < minY ) minY = y;\n\t\t\t\tif ( z < minZ ) minZ = z;\n\n\t\t\t\tif ( x > maxX ) maxX = x;\n\t\t\t\tif ( y > maxY ) maxY = y;\n\t\t\t\tif ( z > maxZ ) maxZ = z;\n\n\t\t\t}\n\n\t\t\tthis.min.set( minX, minY, minZ );\n\t\t\tthis.max.set( maxX, maxY, maxZ );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\tthis.expandByPoint( points[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCenterAndSize: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function setFromCenterAndSize( center, size ) {\n\n\t\t\t\tvar halfSize = v1.copy( size ).multiplyScalar( 0.5 );\n\n\t\t\t\tthis.min.copy( center ).sub( halfSize );\n\t\t\t\tthis.max.copy( center ).add( halfSize );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromObject: function ( object ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\treturn this.expandByObject( object );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( box ) {\n\n\t\t\tthis.min.copy( box.min );\n\t\t\tthis.max.copy( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeEmpty: function () {\n\n\t\t\tthis.min.x = this.min.y = this.min.z = + Infinity;\n\t\t\tthis.max.x = this.max.y = this.max.z = - Infinity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tisEmpty: function () {\n\n\t\t\t// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes\n\n\t\t\treturn ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );\n\n\t\t},\n\n\t\tgetCenter: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .getCenter() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tgetSize: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .getSize() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min );\n\n\t\t},\n\n\t\texpandByPoint: function ( point ) {\n\n\t\t\tthis.min.min( point );\n\t\t\tthis.max.max( point );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByVector: function ( vector ) {\n\n\t\t\tthis.min.sub( vector );\n\t\t\tthis.max.add( vector );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByScalar: function ( scalar ) {\n\n\t\t\tthis.min.addScalar( - scalar );\n\t\t\tthis.max.addScalar( scalar );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByObject: function () {\n\n\t\t\t// Computes the world-axis-aligned bounding box of an object (including its children),\n\t\t\t// accounting for both the object's, and children's, world transforms\n\n\t\t\tvar scope, i, l;\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\tfunction traverse( node ) {\n\n\t\t\t\tvar geometry = node.geometry;\n\n\t\t\t\tif ( geometry !== undefined ) {\n\n\t\t\t\t\tif ( geometry.isGeometry ) {\n\n\t\t\t\t\t\tvar vertices = geometry.vertices;\n\n\t\t\t\t\t\tfor ( i = 0, l = vertices.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tv1.copy( vertices[ i ] );\n\t\t\t\t\t\t\tv1.applyMatrix4( node.matrixWorld );\n\n\t\t\t\t\t\t\tscope.expandByPoint( v1 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\t\tvar attribute = geometry.attributes.position;\n\n\t\t\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\t\t\tfor ( i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\t\t\t\t\tv1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );\n\n\t\t\t\t\t\t\t\tscope.expandByPoint( v1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn function expandByObject( object ) {\n\n\t\t\t\tscope = this;\n\n\t\t\t\tobject.updateMatrixWorld( true );\n\n\t\t\t\tobject.traverse( traverse );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn point.x < this.min.x || point.x > this.max.x ||\n\t\t\t\tpoint.y < this.min.y || point.y > this.max.y ||\n\t\t\t\tpoint.z < this.min.z || point.z > this.max.z ? false : true;\n\n\t\t},\n\n\t\tcontainsBox: function ( box ) {\n\n\t\t\treturn this.min.x <= box.min.x && box.max.x <= this.max.x &&\n\t\t\t\tthis.min.y <= box.min.y && box.max.y <= this.max.y &&\n\t\t\t\tthis.min.z <= box.min.z && box.max.z <= this.max.z;\n\n\t\t},\n\n\t\tgetParameter: function ( point, target ) {\n\n\t\t\t// This can potentially have a divide by zero if the box\n\t\t\t// has a size dimension of 0.\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .getParameter() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.set(\n\t\t\t\t( point.x - this.min.x ) / ( this.max.x - this.min.x ),\n\t\t\t\t( point.y - this.min.y ) / ( this.max.y - this.min.y ),\n\t\t\t\t( point.z - this.min.z ) / ( this.max.z - this.min.z )\n\t\t\t);\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\t// using 6 splitting planes to rule out intersections.\n\t\t\treturn box.max.x < this.min.x || box.min.x > this.max.x ||\n\t\t\t\tbox.max.y < this.min.y || box.min.y > this.max.y ||\n\t\t\t\tbox.max.z < this.min.z || box.min.z > this.max.z ? false : true;\n\n\t\t},\n\n\t\tintersectsSphere: ( function () {\n\n\t\t\tvar closestPoint = new Vector3();\n\n\t\t\treturn function intersectsSphere( sphere ) {\n\n\t\t\t\t// Find the point on the AABB closest to the sphere center.\n\t\t\t\tthis.clampPoint( sphere.center, closestPoint );\n\n\t\t\t\t// If that point is inside the sphere, the AABB and sphere intersect.\n\t\t\t\treturn closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\t// We compute the minimum and maximum dot product values. If those values\n\t\t\t// are on the same side (back or front) of the plane, then there is no intersection.\n\n\t\t\tvar min, max;\n\n\t\t\tif ( plane.normal.x > 0 ) {\n\n\t\t\t\tmin = plane.normal.x * this.min.x;\n\t\t\t\tmax = plane.normal.x * this.max.x;\n\n\t\t\t} else {\n\n\t\t\t\tmin = plane.normal.x * this.max.x;\n\t\t\t\tmax = plane.normal.x * this.min.x;\n\n\t\t\t}\n\n\t\t\tif ( plane.normal.y > 0 ) {\n\n\t\t\t\tmin += plane.normal.y * this.min.y;\n\t\t\t\tmax += plane.normal.y * this.max.y;\n\n\t\t\t} else {\n\n\t\t\t\tmin += plane.normal.y * this.max.y;\n\t\t\t\tmax += plane.normal.y * this.min.y;\n\n\t\t\t}\n\n\t\t\tif ( plane.normal.z > 0 ) {\n\n\t\t\t\tmin += plane.normal.z * this.min.z;\n\t\t\t\tmax += plane.normal.z * this.max.z;\n\n\t\t\t} else {\n\n\t\t\t\tmin += plane.normal.z * this.max.z;\n\t\t\t\tmax += plane.normal.z * this.min.z;\n\n\t\t\t}\n\n\t\t\treturn ( min <= plane.constant && max >= plane.constant );\n\n\t\t},\n\n\t\tintersectsTriangle: ( function () {\n\n\t\t\t// triangle centered vertices\n\t\t\tvar v0 = new Vector3();\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\t// triangle edge vectors\n\t\t\tvar f0 = new Vector3();\n\t\t\tvar f1 = new Vector3();\n\t\t\tvar f2 = new Vector3();\n\n\t\t\tvar testAxis = new Vector3();\n\n\t\t\tvar center = new Vector3();\n\t\t\tvar extents = new Vector3();\n\n\t\t\tvar triangleNormal = new Vector3();\n\n\t\t\tfunction satForAxes( axes ) {\n\n\t\t\t\tvar i, j;\n\n\t\t\t\tfor ( i = 0, j = axes.length - 3; i <= j; i += 3 ) {\n\n\t\t\t\t\ttestAxis.fromArray( axes, i );\n\t\t\t\t\t// project the aabb onto the seperating axis\n\t\t\t\t\tvar r = extents.x * Math.abs( testAxis.x ) + extents.y * Math.abs( testAxis.y ) + extents.z * Math.abs( testAxis.z );\n\t\t\t\t\t// project all 3 vertices of the triangle onto the seperating axis\n\t\t\t\t\tvar p0 = v0.dot( testAxis );\n\t\t\t\t\tvar p1 = v1.dot( testAxis );\n\t\t\t\t\tvar p2 = v2.dot( testAxis );\n\t\t\t\t\t// actual test, basically see if either of the most extreme of the triangle points intersects r\n\t\t\t\t\tif ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {\n\n\t\t\t\t\t\t// points of the projected triangle are outside the projected half-length of the aabb\n\t\t\t\t\t\t// the axis is seperating and we can exit\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\treturn function intersectsTriangle( triangle ) {\n\n\t\t\t\tif ( this.isEmpty() ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t\t// compute box center and extents\n\t\t\t\tthis.getCenter( center );\n\t\t\t\textents.subVectors( this.max, center );\n\n\t\t\t\t// translate triangle to aabb origin\n\t\t\t\tv0.subVectors( triangle.a, center );\n\t\t\t\tv1.subVectors( triangle.b, center );\n\t\t\t\tv2.subVectors( triangle.c, center );\n\n\t\t\t\t// compute edge vectors for triangle\n\t\t\t\tf0.subVectors( v1, v0 );\n\t\t\t\tf1.subVectors( v2, v1 );\n\t\t\t\tf2.subVectors( v0, v2 );\n\n\t\t\t\t// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb\n\t\t\t\t// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation\n\t\t\t\t// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)\n\t\t\t\tvar axes = [\n\t\t\t\t\t0, - f0.z, f0.y, 0, - f1.z, f1.y, 0, - f2.z, f2.y,\n\t\t\t\t\tf0.z, 0, - f0.x, f1.z, 0, - f1.x, f2.z, 0, - f2.x,\n\t\t\t\t\t- f0.y, f0.x, 0, - f1.y, f1.x, 0, - f2.y, f2.x, 0\n\t\t\t\t];\n\t\t\t\tif ( ! satForAxes( axes ) ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t\t// test 3 face normals from the aabb\n\t\t\t\taxes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];\n\t\t\t\tif ( ! satForAxes( axes ) ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t\t// finally testing the face normal of the triangle\n\t\t\t\t// use already existing triangle edge vectors here\n\t\t\t\ttriangleNormal.crossVectors( f0, f1 );\n\t\t\t\taxes = [ triangleNormal.x, triangleNormal.y, triangleNormal.z ];\n\t\t\t\treturn satForAxes( axes );\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tclampPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .clampPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( point ).clamp( this.min, this.max );\n\n\t\t},\n\n\t\tdistanceToPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function distanceToPoint( point ) {\n\n\t\t\t\tvar clampedPoint = v1.copy( point ).clamp( this.min, this.max );\n\t\t\t\treturn clampedPoint.sub( point ).length();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetBoundingSphere: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function getBoundingSphere( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Box3: .getBoundingSphere() target is now required' );\n\t\t\t\t\ttarget = new Sphere();\n\n\t\t\t\t}\n\n\t\t\t\tthis.getCenter( target.center );\n\n\t\t\t\ttarget.radius = this.getSize( v1 ).length() * 0.5;\n\n\t\t\t\treturn target;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersect: function ( box ) {\n\n\t\t\tthis.min.max( box.min );\n\t\t\tthis.max.min( box.max );\n\n\t\t\t// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.\n\t\t\tif ( this.isEmpty() ) this.makeEmpty();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tunion: function ( box ) {\n\n\t\t\tthis.min.min( box.min );\n\t\t\tthis.max.max( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\t// transform of empty box is an empty box.\n\t\t\tif ( this.isEmpty( ) ) return this;\n\n\t\t\tvar m = matrix.elements;\n\n\t\t\tvar xax = m[ 0 ] * this.min.x, xay = m[ 1 ] * this.min.x, xaz = m[ 2 ] * this.min.x;\n\t\t\tvar xbx = m[ 0 ] * this.max.x, xby = m[ 1 ] * this.max.x, xbz = m[ 2 ] * this.max.x;\n\t\t\tvar yax = m[ 4 ] * this.min.y, yay = m[ 5 ] * this.min.y, yaz = m[ 6 ] * this.min.y;\n\t\t\tvar ybx = m[ 4 ] * this.max.y, yby = m[ 5 ] * this.max.y, ybz = m[ 6 ] * this.max.y;\n\t\t\tvar zax = m[ 8 ] * this.min.z, zay = m[ 9 ] * this.min.z, zaz = m[ 10 ] * this.min.z;\n\t\t\tvar zbx = m[ 8 ] * this.max.z, zby = m[ 9 ] * this.max.z, zbz = m[ 10 ] * this.max.z;\n\n\t\t\tthis.min.x = Math.min( xax, xbx ) + Math.min( yax, ybx ) + Math.min( zax, zbx ) + m[ 12 ];\n\t\t\tthis.min.y = Math.min( xay, xby ) + Math.min( yay, yby ) + Math.min( zay, zby ) + m[ 13 ];\n\t\t\tthis.min.z = Math.min( xaz, xbz ) + Math.min( yaz, ybz ) + Math.min( zaz, zbz ) + m[ 14 ];\n\t\t\tthis.max.x = Math.max( xax, xbx ) + Math.max( yax, ybx ) + Math.max( zax, zbx ) + m[ 12 ];\n\t\t\tthis.max.y = Math.max( xay, xby ) + Math.max( yay, yby ) + Math.max( zay, zby ) + m[ 13 ];\n\t\t\tthis.max.z = Math.max( xaz, xbz ) + Math.max( yaz, ybz ) + Math.max( zaz, zbz ) + m[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.min.add( offset );\n\t\t\tthis.max.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( box ) {\n\n\t\t\treturn box.min.equals( this.min ) && box.max.equals( this.max );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Sphere( center, radius ) {\n\n\t\tthis.center = ( center !== undefined ) ? center : new Vector3();\n\t\tthis.radius = ( radius !== undefined ) ? radius : 0;\n\n\t}\n\n\tObject.assign( Sphere.prototype, {\n\n\t\tset: function ( center, radius ) {\n\n\t\t\tthis.center.copy( center );\n\t\t\tthis.radius = radius;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function () {\n\n\t\t\tvar box = new Box3();\n\n\t\t\treturn function setFromPoints( points, optionalCenter ) {\n\n\t\t\t\tvar center = this.center;\n\n\t\t\t\tif ( optionalCenter !== undefined ) {\n\n\t\t\t\t\tcenter.copy( optionalCenter );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tbox.setFromPoints( points ).getCenter( center );\n\n\t\t\t\t}\n\n\t\t\t\tvar maxRadiusSq = 0;\n\n\t\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\t\tmaxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tthis.radius = Math.sqrt( maxRadiusSq );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( sphere ) {\n\n\t\t\tthis.center.copy( sphere.center );\n\t\t\tthis.radius = sphere.radius;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tempty: function () {\n\n\t\t\treturn ( this.radius <= 0 );\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn ( point.distanceTo( this.center ) - this.radius );\n\n\t\t},\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\tvar radiusSum = this.radius + sphere.radius;\n\n\t\t\treturn sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsSphere( this );\n\n\t\t},\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\treturn Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;\n\n\t\t},\n\n\t\tclampPoint: function ( point, target ) {\n\n\t\t\tvar deltaLengthSq = this.center.distanceToSquared( point );\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Sphere: .clampPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\ttarget.copy( point );\n\n\t\t\tif ( deltaLengthSq > ( this.radius * this.radius ) ) {\n\n\t\t\t\ttarget.sub( this.center ).normalize();\n\t\t\t\ttarget.multiplyScalar( this.radius ).add( this.center );\n\n\t\t\t}\n\n\t\t\treturn target;\n\n\t\t},\n\n\t\tgetBoundingBox: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Sphere: .getBoundingBox() target is now required' );\n\t\t\t\ttarget = new Box3();\n\n\t\t\t}\n\n\t\t\ttarget.set( this.center, this.center );\n\t\t\ttarget.expandByScalar( this.radius );\n\n\t\t\treturn target;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\tthis.center.applyMatrix4( matrix );\n\t\t\tthis.radius = this.radius * matrix.getMaxScaleOnAxis();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.center.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( sphere ) {\n\n\t\t\treturn sphere.center.equals( this.center ) && ( sphere.radius === this.radius );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Plane( normal, constant ) {\n\n\t\t// normal is assumed to be normalized\n\n\t\tthis.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );\n\t\tthis.constant = ( constant !== undefined ) ? constant : 0;\n\n\t}\n\n\tObject.assign( Plane.prototype, {\n\n\t\tset: function ( normal, constant ) {\n\n\t\t\tthis.normal.copy( normal );\n\t\t\tthis.constant = constant;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponents: function ( x, y, z, w ) {\n\n\t\t\tthis.normal.set( x, y, z );\n\t\t\tthis.constant = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromNormalAndCoplanarPoint: function ( normal, point ) {\n\n\t\t\tthis.normal.copy( normal );\n\t\t\tthis.constant = - point.dot( this.normal );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCoplanarPoints: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function setFromCoplanarPoints( a, b, c ) {\n\n\t\t\t\tvar normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();\n\n\t\t\t\t// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?\n\n\t\t\t\tthis.setFromNormalAndCoplanarPoint( normal, a );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( plane ) {\n\n\t\t\tthis.normal.copy( plane.normal );\n\t\t\tthis.constant = plane.constant;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\t// Note: will lead to a divide by zero if the plane is invalid.\n\n\t\t\tvar inverseNormalLength = 1.0 / this.normal.length();\n\t\t\tthis.normal.multiplyScalar( inverseNormalLength );\n\t\t\tthis.constant *= inverseNormalLength;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.constant *= - 1;\n\t\t\tthis.normal.negate();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn this.normal.dot( point ) + this.constant;\n\n\t\t},\n\n\t\tdistanceToSphere: function ( sphere ) {\n\n\t\t\treturn this.distanceToPoint( sphere.center ) - sphere.radius;\n\n\t\t},\n\n\t\tprojectPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Plane: .projectPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );\n\n\t\t},\n\n\t\tintersectLine: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function intersectLine( line, target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Plane: .intersectLine() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tvar direction = line.delta( v1 );\n\n\t\t\t\tvar denominator = this.normal.dot( direction );\n\n\t\t\t\tif ( denominator === 0 ) {\n\n\t\t\t\t\t// line is coplanar, return origin\n\t\t\t\t\tif ( this.distanceToPoint( line.start ) === 0 ) {\n\n\t\t\t\t\t\treturn target.copy( line.start );\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Unsure if this is the correct method to handle this case.\n\t\t\t\t\treturn undefined;\n\n\t\t\t\t}\n\n\t\t\t\tvar t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;\n\n\t\t\t\tif ( t < 0 || t > 1 ) {\n\n\t\t\t\t\treturn undefined;\n\n\t\t\t\t}\n\n\t\t\t\treturn target.copy( direction ).multiplyScalar( t ).add( line.start );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsLine: function ( line ) {\n\n\t\t\t// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.\n\n\t\t\tvar startSign = this.distanceToPoint( line.start );\n\t\t\tvar endSign = this.distanceToPoint( line.end );\n\n\t\t\treturn ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsPlane( this );\n\n\t\t},\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\treturn sphere.intersectsPlane( this );\n\n\t\t},\n\n\t\tcoplanarPoint: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Plane: .coplanarPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.normal ).multiplyScalar( - this.constant );\n\n\t\t},\n\n\t\tapplyMatrix4: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar m1 = new Matrix3();\n\n\t\t\treturn function applyMatrix4( matrix, optionalNormalMatrix ) {\n\n\t\t\t\tvar normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );\n\n\t\t\t\tvar referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );\n\n\t\t\t\tvar normal = this.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\tthis.constant = - referencePoint.dot( normal );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.constant -= offset.dot( this.normal );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( plane ) {\n\n\t\t\treturn plane.normal.equals( this.normal ) && ( plane.constant === this.constant );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Frustum( p0, p1, p2, p3, p4, p5 ) {\n\n\t\tthis.planes = [\n\n\t\t\t( p0 !== undefined ) ? p0 : new Plane(),\n\t\t\t( p1 !== undefined ) ? p1 : new Plane(),\n\t\t\t( p2 !== undefined ) ? p2 : new Plane(),\n\t\t\t( p3 !== undefined ) ? p3 : new Plane(),\n\t\t\t( p4 !== undefined ) ? p4 : new Plane(),\n\t\t\t( p5 !== undefined ) ? p5 : new Plane()\n\n\t\t];\n\n\t}\n\n\tObject.assign( Frustum.prototype, {\n\n\t\tset: function ( p0, p1, p2, p3, p4, p5 ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tplanes[ 0 ].copy( p0 );\n\t\t\tplanes[ 1 ].copy( p1 );\n\t\t\tplanes[ 2 ].copy( p2 );\n\t\t\tplanes[ 3 ].copy( p3 );\n\t\t\tplanes[ 4 ].copy( p4 );\n\t\t\tplanes[ 5 ].copy( p5 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( frustum ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tplanes[ i ].copy( frustum.planes[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrix: function ( m ) {\n\n\t\t\tvar planes = this.planes;\n\t\t\tvar me = m.elements;\n\t\t\tvar me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];\n\t\t\tvar me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];\n\t\t\tvar me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];\n\t\t\tvar me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];\n\n\t\t\tplanes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();\n\t\t\tplanes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();\n\t\t\tplanes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();\n\t\t\tplanes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();\n\t\t\tplanes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();\n\t\t\tplanes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tintersectsObject: function () {\n\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function intersectsObject( object ) {\n\n\t\t\t\tvar geometry = object.geometry;\n\n\t\t\t\tif ( geometry.boundingSphere === null )\n\t\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere )\n\t\t\t\t\t.applyMatrix4( object.matrixWorld );\n\n\t\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSprite: function () {\n\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function intersectsSprite( sprite ) {\n\n\t\t\t\tsphere.center.set( 0, 0, 0 );\n\t\t\t\tsphere.radius = 0.7071067811865476;\n\t\t\t\tsphere.applyMatrix4( sprite.matrixWorld );\n\n\t\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\tvar planes = this.planes;\n\t\t\tvar center = sphere.center;\n\t\t\tvar negRadius = - sphere.radius;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tvar distance = planes[ i ].distanceToPoint( center );\n\n\t\t\t\tif ( distance < negRadius ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tintersectsBox: function () {\n\n\t\t\tvar p = new Vector3();\n\n\t\t\treturn function intersectsBox( box ) {\n\n\t\t\t\tvar planes = this.planes;\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\tvar plane = planes[ i ];\n\n\t\t\t\t\t// corner at max distance\n\n\t\t\t\t\tp.x = plane.normal.x > 0 ? box.max.x : box.min.x;\n\t\t\t\t\tp.y = plane.normal.y > 0 ? box.max.y : box.min.y;\n\t\t\t\t\tp.z = plane.normal.z > 0 ? box.max.z : box.min.z;\n\n\t\t\t\t\tif ( plane.distanceToPoint( p ) < 0 ) {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tif ( planes[ i ].distanceToPoint( point ) < 0 ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t}\n\n\t} );\n\n\tvar alphamap_fragment = \"#ifdef USE_ALPHAMAP\\n\\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\\n#endif\\n\";\n\n\tvar alphamap_pars_fragment = \"#ifdef USE_ALPHAMAP\\n\\tuniform sampler2D alphaMap;\\n#endif\\n\";\n\n\tvar alphatest_fragment = \"#ifdef ALPHATEST\\n\\tif ( diffuseColor.a < ALPHATEST ) discard;\\n#endif\\n\";\n\n\tvar aomap_fragment = \"#ifdef USE_AOMAP\\n\\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\\n\\treflectedLight.indirectDiffuse *= ambientOcclusion;\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\\n\\t#endif\\n#endif\\n\";\n\n\tvar aomap_pars_fragment = \"#ifdef USE_AOMAP\\n\\tuniform sampler2D aoMap;\\n\\tuniform float aoMapIntensity;\\n#endif\";\n\n\tvar begin_vertex = \"\\nvec3 transformed = vec3( position );\\n\";\n\n\tvar beginnormal_vertex = \"\\nvec3 objectNormal = vec3( normal );\\n\";\n\n\tvar bsdfs = \"float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\\n\\tif( decayExponent > 0.0 ) {\\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\\n\\t\\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\\n\\t\\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\\n\\t\\treturn distanceFalloff * maxDistanceCutoffFactor;\\n#else\\n\\t\\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\\n#endif\\n\\t}\\n\\treturn 1.0;\\n}\\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\\n\\treturn RECIPROCAL_PI * diffuseColor;\\n}\\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\\n\\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\\n\\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\\n}\\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\treturn 1.0 / ( gl * gv );\\n}\\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\treturn 0.5 / max( gv + gl, EPSILON );\\n}\\nfloat D_GGX( const in float alpha, const in float dotNH ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\\n\\treturn RECIPROCAL_PI * a2 / pow2( denom );\\n}\\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat alpha = pow2( roughness );\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\\n\\tfloat D = D_GGX( alpha, dotNH );\\n\\treturn F * ( G * D );\\n}\\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\\n\\tconst float LUT_SIZE = 64.0;\\n\\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\\n\\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\\n\\tfloat dotNV = saturate( dot( N, V ) );\\n\\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\\n\\tuv = uv * LUT_SCALE + LUT_BIAS;\\n\\treturn uv;\\n}\\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\\n\\tfloat l = length( f );\\n\\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\\n}\\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\\n\\tfloat x = dot( v1, v2 );\\n\\tfloat y = abs( x );\\n\\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\\n\\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\\n\\tfloat v = a / b;\\n\\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\\n\\treturn cross( v1, v2 ) * theta_sintheta;\\n}\\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\\n\\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\\n\\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\\n\\tvec3 lightNormal = cross( v1, v2 );\\n\\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\\n\\tvec3 T1, T2;\\n\\tT1 = normalize( V - N * dot( V, N ) );\\n\\tT2 = - cross( N, T1 );\\n\\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\\n\\tvec3 coords[ 4 ];\\n\\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\\n\\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\\n\\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\\n\\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\\n\\tcoords[ 0 ] = normalize( coords[ 0 ] );\\n\\tcoords[ 1 ] = normalize( coords[ 1 ] );\\n\\tcoords[ 2 ] = normalize( coords[ 2 ] );\\n\\tcoords[ 3 ] = normalize( coords[ 3 ] );\\n\\tvec3 vectorFormFactor = vec3( 0.0 );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\\n\\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\\n\\treturn vec3( result );\\n}\\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\\n\\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\\n\\tvec4 r = roughness * c0 + c1;\\n\\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\\n\\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\\n\\treturn specularColor * AB.x + AB.y;\\n}\\nfloat G_BlinnPhong_Implicit( ) {\\n\\treturn 0.25;\\n}\\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\\n\\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\\n}\\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_BlinnPhong_Implicit( );\\n\\tfloat D = D_BlinnPhong( shininess, dotNH );\\n\\treturn F * ( G * D );\\n}\\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\\n\\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\\n}\\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\\n\\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\\n}\\n\";\n\n\tvar bumpmap_pars_fragment = \"#ifdef USE_BUMPMAP\\n\\tuniform sampler2D bumpMap;\\n\\tuniform float bumpScale;\\n\\tvec2 dHdxy_fwd() {\\n\\t\\tvec2 dSTdx = dFdx( vUv );\\n\\t\\tvec2 dSTdy = dFdy( vUv );\\n\\t\\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\\n\\t\\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\\n\\t\\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\\n\\t\\treturn vec2( dBx, dBy );\\n\\t}\\n\\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\\n\\t\\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\\n\\t\\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\\n\\t\\tvec3 vN = surf_norm;\\n\\t\\tvec3 R1 = cross( vSigmaY, vN );\\n\\t\\tvec3 R2 = cross( vN, vSigmaX );\\n\\t\\tfloat fDet = dot( vSigmaX, R1 );\\n\\t\\tfDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t\\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\\n\\t\\treturn normalize( abs( fDet ) * surf_norm - vGrad );\\n\\t}\\n#endif\\n\";\n\n\tvar clipping_planes_fragment = \"#if NUM_CLIPPING_PLANES > 0\\n\\tvec4 plane;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\\n\\t\\tplane = clippingPlanes[ i ];\\n\\t\\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\\n\\t}\\n\\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\\n\\t\\tbool clipped = true;\\n\\t\\t#pragma unroll_loop\\n\\t\\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\\n\\t\\t\\tplane = clippingPlanes[ i ];\\n\\t\\t\\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\\n\\t\\t}\\n\\t\\tif ( clipped ) discard;\\n\\t#endif\\n#endif\\n\";\n\n\tvar clipping_planes_pars_fragment = \"#if NUM_CLIPPING_PLANES > 0\\n\\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\t\\tvarying vec3 vViewPosition;\\n\\t#endif\\n\\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\\n#endif\\n\";\n\n\tvar clipping_planes_pars_vertex = \"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n\";\n\n\tvar clipping_planes_vertex = \"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvViewPosition = - mvPosition.xyz;\\n#endif\\n\";\n\n\tvar color_fragment = \"#ifdef USE_COLOR\\n\\tdiffuseColor.rgb *= vColor;\\n#endif\";\n\n\tvar color_pars_fragment = \"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\\n\";\n\n\tvar color_pars_vertex = \"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\";\n\n\tvar color_vertex = \"#ifdef USE_COLOR\\n\\tvColor.xyz = color.xyz;\\n#endif\";\n\n\tvar common = \"#define PI 3.14159265359\\n#define PI2 6.28318530718\\n#define PI_HALF 1.5707963267949\\n#define RECIPROCAL_PI 0.31830988618\\n#define RECIPROCAL_PI2 0.15915494\\n#define LOG2 1.442695\\n#define EPSILON 1e-6\\n#define saturate(a) clamp( a, 0.0, 1.0 )\\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\\nfloat pow2( const in float x ) { return x*x; }\\nfloat pow3( const in float x ) { return x*x*x; }\\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\\nhighp float rand( const in vec2 uv ) {\\n\\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\\n\\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\\n\\treturn fract(sin(sn) * c);\\n}\\nstruct IncidentLight {\\n\\tvec3 color;\\n\\tvec3 direction;\\n\\tbool visible;\\n};\\nstruct ReflectedLight {\\n\\tvec3 directDiffuse;\\n\\tvec3 directSpecular;\\n\\tvec3 indirectDiffuse;\\n\\tvec3 indirectSpecular;\\n};\\nstruct GeometricContext {\\n\\tvec3 position;\\n\\tvec3 normal;\\n\\tvec3 viewDir;\\n};\\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\\n}\\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\\n}\\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\tfloat distance = dot( planeNormal, point - pointOnPlane );\\n\\treturn - distance * planeNormal + point;\\n}\\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn sign( dot( point - pointOnPlane, planeNormal ) );\\n}\\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\\n}\\nmat3 transposeMat3( const in mat3 m ) {\\n\\tmat3 tmp;\\n\\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\\n\\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\\n\\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\\n\\treturn tmp;\\n}\\nfloat linearToRelativeLuminance( const in vec3 color ) {\\n\\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\\n\\treturn dot( weights, color.rgb );\\n}\\n\";\n\n\tvar cube_uv_reflection_fragment = \"#ifdef ENVMAP_TYPE_CUBE_UV\\n#define cubeUV_textureSize (1024.0)\\nint getFaceFromDirection(vec3 direction) {\\n\\tvec3 absDirection = abs(direction);\\n\\tint face = -1;\\n\\tif( absDirection.x > absDirection.z ) {\\n\\t\\tif(absDirection.x > absDirection.y )\\n\\t\\t\\tface = direction.x > 0.0 ? 0 : 3;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\telse {\\n\\t\\tif(absDirection.z > absDirection.y )\\n\\t\\t\\tface = direction.z > 0.0 ? 2 : 5;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\treturn face;\\n}\\n#define cubeUV_maxLods1 (log2(cubeUV_textureSize*0.25) - 1.0)\\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\\n\\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\\n\\tfloat dxRoughness = dFdx(roughness);\\n\\tfloat dyRoughness = dFdy(roughness);\\n\\tvec3 dx = dFdx( vec * scale * dxRoughness );\\n\\tvec3 dy = dFdy( vec * scale * dyRoughness );\\n\\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\\n\\td = clamp(d, 1.0, cubeUV_rangeClamp);\\n\\tfloat mipLevel = 0.5 * log2(d);\\n\\treturn vec2(floor(mipLevel), fract(mipLevel));\\n}\\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\\n\\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\\n\\tfloat a = 16.0 * cubeUV_rcpTextureSize;\\n\\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\\n\\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\\n\\tfloat powScale = exp2_packed.x * exp2_packed.y;\\n\\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\\n\\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\\n\\tbool bRes = mipLevel == 0.0;\\n\\tscale = bRes && (scale < a) ? a : scale;\\n\\tvec3 r;\\n\\tvec2 offset;\\n\\tint face = getFaceFromDirection(direction);\\n\\tfloat rcpPowScale = 1.0 / powScale;\\n\\tif( face == 0) {\\n\\t\\tr = vec3(direction.x, -direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 1) {\\n\\t\\tr = vec3(direction.y, direction.x, direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 2) {\\n\\t\\tr = vec3(direction.z, direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 3) {\\n\\t\\tr = vec3(direction.x, direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse if( face == 4) {\\n\\t\\tr = vec3(direction.y, direction.x, -direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse {\\n\\t\\tr = vec3(direction.z, -direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\tr = normalize(r);\\n\\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\\n\\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\\n\\tvec2 base = offset + vec2( texelOffset );\\n\\treturn base + s * ( scale - 2.0 * texelOffset );\\n}\\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\\nvec4 textureCubeUV( sampler2D envMap, vec3 reflectedDirection, float roughness ) {\\n\\tfloat roughnessVal = roughness* cubeUV_maxLods3;\\n\\tfloat r1 = floor(roughnessVal);\\n\\tfloat r2 = r1 + 1.0;\\n\\tfloat t = fract(roughnessVal);\\n\\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\\n\\tfloat s = mipInfo.y;\\n\\tfloat level0 = mipInfo.x;\\n\\tfloat level1 = level0 + 1.0;\\n\\tlevel1 = level1 > 5.0 ? 5.0 : level1;\\n\\tlevel0 += min( floor( s + 0.5 ), 5.0 );\\n\\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\\n\\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\\n\\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\\n\\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\\n\\tvec4 result = mix(color10, color20, t);\\n\\treturn vec4(result.rgb, 1.0);\\n}\\n#endif\\n\";\n\n\tvar defaultnormal_vertex = \"vec3 transformedNormal = normalMatrix * objectNormal;\\n#ifdef FLIP_SIDED\\n\\ttransformedNormal = - transformedNormal;\\n#endif\\n\";\n\n\tvar displacementmap_pars_vertex = \"#ifdef USE_DISPLACEMENTMAP\\n\\tuniform sampler2D displacementMap;\\n\\tuniform float displacementScale;\\n\\tuniform float displacementBias;\\n#endif\\n\";\n\n\tvar displacementmap_vertex = \"#ifdef USE_DISPLACEMENTMAP\\n\\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\\n#endif\\n\";\n\n\tvar emissivemap_fragment = \"#ifdef USE_EMISSIVEMAP\\n\\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\\n\\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\\n\\ttotalEmissiveRadiance *= emissiveColor.rgb;\\n#endif\\n\";\n\n\tvar emissivemap_pars_fragment = \"#ifdef USE_EMISSIVEMAP\\n\\tuniform sampler2D emissiveMap;\\n#endif\\n\";\n\n\tvar encodings_fragment = \" gl_FragColor = linearToOutputTexel( gl_FragColor );\\n\";\n\n\tvar encodings_pars_fragment = \"\\nvec4 LinearToLinear( in vec4 value ) {\\n\\treturn value;\\n}\\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\\n\\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\\n}\\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\\n\\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\\n}\\nvec4 sRGBToLinear( in vec4 value ) {\\n\\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\\n}\\nvec4 LinearTosRGB( in vec4 value ) {\\n\\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\\n}\\nvec4 RGBEToLinear( in vec4 value ) {\\n\\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\\n}\\nvec4 LinearToRGBE( in vec4 value ) {\\n\\tfloat maxComponent = max( max( value.r, value.g ), value.b );\\n\\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\\n\\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\\n}\\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\\n\\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\\n}\\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\\n\\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\\n\\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\\n\\tM = ceil( M * 255.0 ) / 255.0;\\n\\treturn vec4( value.rgb / ( M * maxRange ), M );\\n}\\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\\n\\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\\n}\\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\\n\\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\\n\\tfloat D = max( maxRange / maxRGB, 1.0 );\\n\\tD = min( floor( D ) / 255.0, 1.0 );\\n\\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\\n}\\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\\nvec4 LinearToLogLuv( in vec4 value ) {\\n\\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\\n\\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\\n\\tvec4 vResult;\\n\\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\\n\\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\\n\\tvResult.w = fract(Le);\\n\\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\\n\\treturn vResult;\\n}\\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\\nvec4 LogLuvToLinear( in vec4 value ) {\\n\\tfloat Le = value.z * 255.0 + value.w;\\n\\tvec3 Xp_Y_XYZp;\\n\\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\\n\\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\\n\\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\\n\\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\\n\\treturn vec4( max(vRGB, 0.0), 1.0 );\\n}\\n\";\n\n\tvar envmap_fragment = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#else\\n\\t\\tvec3 reflectVec = vReflect;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\\n\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\tvec2 sampleUV;\\n\\t\\treflectVec = normalize( reflectVec );\\n\\t\\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\t\\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\tvec4 envColor = texture2D( envMap, sampleUV );\\n\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\treflectVec = normalize( reflectVec );\\n\\t\\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\\n\\t\\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\\n\\t#else\\n\\t\\tvec4 envColor = vec4( 0.0 );\\n\\t#endif\\n\\tenvColor = envMapTexelToLinear( envColor );\\n\\t#ifdef ENVMAP_BLENDING_MULTIPLY\\n\\t\\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_MIX )\\n\\t\\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_ADD )\\n\\t\\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_pars_fragment = \"#if defined( USE_ENVMAP ) || defined( PHYSICAL )\\n\\tuniform float reflectivity;\\n\\tuniform float envMapIntensity;\\n#endif\\n#ifdef USE_ENVMAP\\n\\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tuniform samplerCube envMap;\\n\\t#else\\n\\t\\tuniform sampler2D envMap;\\n\\t#endif\\n\\tuniform float flipEnvMap;\\n\\tuniform int maxMipLevel;\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\\n\\t\\tuniform float refractionRatio;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_pars_vertex = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t\\tuniform float refractionRatio;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_vertex = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvWorldPosition = worldPosition.xyz;\\n\\t#else\\n\\t\\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvReflect = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#endif\\n#endif\\n\";\n\n\tvar fog_vertex = \"\\n#ifdef USE_FOG\\nfogDepth = -mvPosition.z;\\n#endif\";\n\n\tvar fog_pars_vertex = \"#ifdef USE_FOG\\n varying float fogDepth;\\n#endif\\n\";\n\n\tvar fog_fragment = \"#ifdef USE_FOG\\n\\t#ifdef FOG_EXP2\\n\\t\\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\\n\\t#else\\n\\t\\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\\n\\t#endif\\n\\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\\n#endif\\n\";\n\n\tvar fog_pars_fragment = \"#ifdef USE_FOG\\n\\tuniform vec3 fogColor;\\n\\tvarying float fogDepth;\\n\\t#ifdef FOG_EXP2\\n\\t\\tuniform float fogDensity;\\n\\t#else\\n\\t\\tuniform float fogNear;\\n\\t\\tuniform float fogFar;\\n\\t#endif\\n#endif\\n\";\n\n\tvar gradientmap_pars_fragment = \"#ifdef TOON\\n\\tuniform sampler2D gradientMap;\\n\\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\\n\\t\\tfloat dotNL = dot( normal, lightDirection );\\n\\t\\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\\n\\t\\t#ifdef USE_GRADIENTMAP\\n\\t\\t\\treturn texture2D( gradientMap, coord ).rgb;\\n\\t\\t#else\\n\\t\\t\\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar lightmap_fragment = \"#ifdef USE_LIGHTMAP\\n\\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n#endif\\n\";\n\n\tvar lightmap_pars_fragment = \"#ifdef USE_LIGHTMAP\\n\\tuniform sampler2D lightMap;\\n\\tuniform float lightMapIntensity;\\n#endif\";\n\n\tvar lights_lambert_vertex = \"vec3 diffuse = vec3( 1.0 );\\nGeometricContext geometry;\\ngeometry.position = mvPosition.xyz;\\ngeometry.normal = normalize( transformedNormal );\\ngeometry.viewDir = normalize( -mvPosition.xyz );\\nGeometricContext backGeometry;\\nbackGeometry.position = geometry.position;\\nbackGeometry.normal = -geometry.normal;\\nbackGeometry.viewDir = geometry.viewDir;\\nvLightFront = vec3( 0.0 );\\n#ifdef DOUBLE_SIDED\\n\\tvLightBack = vec3( 0.0 );\\n#endif\\nIncidentLight directLight;\\nfloat dotNL;\\nvec3 directLightColor_Diffuse;\\n#if NUM_POINT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_DIR_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar lights_pars_begin = \"uniform vec3 ambientLightColor;\\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\\n\\tvec3 irradiance = ambientLightColor;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treturn irradiance;\\n}\\n#if NUM_DIR_LIGHTS > 0\\n\\tstruct DirectionalLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\\n\\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tdirectLight.color = directionalLight.color;\\n\\t\\tdirectLight.direction = directionalLight.direction;\\n\\t\\tdirectLight.visible = true;\\n\\t}\\n#endif\\n#if NUM_POINT_LIGHTS > 0\\n\\tstruct PointLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t\\tfloat shadowCameraNear;\\n\\t\\tfloat shadowCameraFar;\\n\\t};\\n\\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\\n\\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tvec3 lVector = pointLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tdirectLight.color = pointLight.color;\\n\\t\\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\\n\\t\\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\tstruct SpotLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tfloat coneCos;\\n\\t\\tfloat penumbraCos;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\\n\\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tvec3 lVector = spotLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tfloat angleCos = dot( directLight.direction, spotLight.direction );\\n\\t\\tif ( angleCos > spotLight.coneCos ) {\\n\\t\\t\\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\\n\\t\\t\\tdirectLight.color = spotLight.color;\\n\\t\\t\\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\\n\\t\\t\\tdirectLight.visible = true;\\n\\t\\t} else {\\n\\t\\t\\tdirectLight.color = vec3( 0.0 );\\n\\t\\t\\tdirectLight.visible = false;\\n\\t\\t}\\n\\t}\\n#endif\\n#if NUM_RECT_AREA_LIGHTS > 0\\n\\tstruct RectAreaLight {\\n\\t\\tvec3 color;\\n\\t\\tvec3 position;\\n\\t\\tvec3 halfWidth;\\n\\t\\tvec3 halfHeight;\\n\\t};\\n\\tuniform sampler2D ltc_1;\\tuniform sampler2D ltc_2;\\n\\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\tstruct HemisphereLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 skyColor;\\n\\t\\tvec3 groundColor;\\n\\t};\\n\\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\\n\\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\\n\\t\\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\\n\\t\\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\\n\\t\\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tirradiance *= PI;\\n\\t\\t#endif\\n\\t\\treturn irradiance;\\n\\t}\\n#endif\\n\";\n\n\tvar envmap_physical_pars_fragment = \"#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\\n\\t\\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV( envMap, queryVec, 1.0 );\\n\\t\\t#else\\n\\t\\t\\tvec4 envMapColor = vec4( 0.0 );\\n\\t\\t#endif\\n\\t\\treturn PI * envMapColor.rgb * envMapIntensity;\\n\\t}\\n\\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\tfloat maxMIPLevelScalar = float( maxMIPLevel );\\n\\t\\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\\n\\t\\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\\n\\t}\\n\\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\\n\\t\\t#endif\\n\\t\\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\\n\\t\\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV( envMap, queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent ));\\n\\t\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\t\\tvec2 sampleUV;\\n\\t\\t\\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\t\\t\\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\t\\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#endif\\n\\t\\treturn envMapColor.rgb * envMapIntensity;\\n\\t}\\n#endif\\n\";\n\n\tvar lights_phong_fragment = \"BlinnPhongMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb;\\nmaterial.specularColor = specular;\\nmaterial.specularShininess = shininess;\\nmaterial.specularStrength = specularStrength;\\n\";\n\n\tvar lights_phong_pars_fragment = \"varying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\nstruct BlinnPhongMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tvec3\\tspecularColor;\\n\\tfloat\\tspecularShininess;\\n\\tfloat\\tspecularStrength;\\n};\\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t#ifdef TOON\\n\\t\\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\\n\\t#else\\n\\t\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\t\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#endif\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\\n}\\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_BlinnPhong\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_BlinnPhong\\n#define Material_LightProbeLOD( material )\\t(0)\\n\";\n\n\tvar lights_physical_fragment = \"PhysicalMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\\n#ifdef STANDARD\\n\\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\\n#else\\n\\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\\n\\tmaterial.clearCoat = saturate( clearCoat );\\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\\n#endif\\n\";\n\n\tvar lights_physical_pars_fragment = \"struct PhysicalMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tfloat\\tspecularRoughness;\\n\\tvec3\\tspecularColor;\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoat;\\n\\t\\tfloat clearCoatRoughness;\\n\\t#endif\\n};\\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\\n\\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\\n}\\n#if NUM_RECT_AREA_LIGHTS > 0\\n\\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t\\tvec3 normal = geometry.normal;\\n\\t\\tvec3 viewDir = geometry.viewDir;\\n\\t\\tvec3 position = geometry.position;\\n\\t\\tvec3 lightPos = rectAreaLight.position;\\n\\t\\tvec3 halfWidth = rectAreaLight.halfWidth;\\n\\t\\tvec3 halfHeight = rectAreaLight.halfHeight;\\n\\t\\tvec3 lightColor = rectAreaLight.color;\\n\\t\\tfloat roughness = material.specularRoughness;\\n\\t\\tvec3 rectCoords[ 4 ];\\n\\t\\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\\t\\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\\n\\t\\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\\n\\t\\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\\n\\t\\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\\n\\t\\tvec4 t1 = texture2D( ltc_1, uv );\\n\\t\\tvec4 t2 = texture2D( ltc_2, uv );\\n\\t\\tmat3 mInv = mat3(\\n\\t\\t\\tvec3( t1.x, 0, t1.y ),\\n\\t\\t\\tvec3( 0, 1, 0 ),\\n\\t\\t\\tvec3( t1.z, 0, t1.w )\\n\\t\\t);\\n\\t\\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\\n\\t\\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\\n\\t\\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\\n\\t}\\n#endif\\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\\n\\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t#ifndef STANDARD\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\tfloat dotNL = dotNV;\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_Physical\\n#define RE_Direct_RectArea\\t\\tRE_Direct_RectArea_Physical\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_Physical\\n#define RE_IndirectSpecular\\t\\tRE_IndirectSpecular_Physical\\n#define Material_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.specularRoughness )\\n#define Material_ClearCoat_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\\n\\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\\n}\\n\";\n\n\tvar lights_fragment_begin = \"\\nGeometricContext geometry;\\ngeometry.position = - vViewPosition;\\ngeometry.normal = normal;\\ngeometry.viewDir = normalize( vViewPosition );\\nIncidentLight directLight;\\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tPointLight pointLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tSpotLight spotLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tDirectionalLight directionalLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\\n\\tRectAreaLight rectAreaLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\\n\\t\\trectAreaLight = rectAreaLights[ i ];\\n\\t\\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if defined( RE_IndirectDiffuse )\\n\\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\\n\\t#if ( NUM_HEMI_LIGHTS > 0 )\\n\\t\\t#pragma unroll_loop\\n\\t\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\t\\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t}\\n\\t#endif\\n#endif\\n#if defined( RE_IndirectSpecular )\\n\\tvec3 radiance = vec3( 0.0 );\\n\\tvec3 clearCoatRadiance = vec3( 0.0 );\\n#endif\\n\";\n\n\tvar lights_fragment_maps = \"#if defined( RE_IndirectDiffuse )\\n\\t#ifdef USE_LIGHTMAP\\n\\t\\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tlightMapIrradiance *= PI;\\n\\t\\t#endif\\n\\t\\tirradiance += lightMapIrradiance;\\n\\t#endif\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\tirradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\\n\\t#endif\\n#endif\\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\\n\\tradiance += getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), maxMipLevel );\\n\\t#ifndef STANDARD\\n\\t\\tclearCoatRadiance += getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), maxMipLevel );\\n\\t#endif\\n#endif\\n\";\n\n\tvar lights_fragment_end = \"#if defined( RE_IndirectDiffuse )\\n\\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\\n#endif\\n#if defined( RE_IndirectSpecular )\\n\\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\\n#endif\\n\";\n\n\tvar logdepthbuf_fragment = \"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\\n\\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\\n#endif\";\n\n\tvar logdepthbuf_pars_fragment = \"#ifdef USE_LOGDEPTHBUF\\n\\tuniform float logDepthBufFC;\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n#endif\\n\";\n\n\tvar logdepthbuf_pars_vertex = \"#ifdef USE_LOGDEPTHBUF\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n\\tuniform float logDepthBufFC;\\n#endif\";\n\n\tvar logdepthbuf_vertex = \"#ifdef USE_LOGDEPTHBUF\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvFragDepth = 1.0 + gl_Position.w;\\n\\t#else\\n\\t\\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\\n\\t\\tgl_Position.z *= gl_Position.w;\\n\\t#endif\\n#endif\\n\";\n\n\tvar map_fragment = \"#ifdef USE_MAP\\n\\tvec4 texelColor = texture2D( map, vUv );\\n\\ttexelColor = mapTexelToLinear( texelColor );\\n\\tdiffuseColor *= texelColor;\\n#endif\\n\";\n\n\tvar map_pars_fragment = \"#ifdef USE_MAP\\n\\tuniform sampler2D map;\\n#endif\\n\";\n\n\tvar map_particle_fragment = \"#ifdef USE_MAP\\n\\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\\n\\tvec4 mapTexel = texture2D( map, uv );\\n\\tdiffuseColor *= mapTexelToLinear( mapTexel );\\n#endif\\n\";\n\n\tvar map_particle_pars_fragment = \"#ifdef USE_MAP\\n\\tuniform mat3 uvTransform;\\n\\tuniform sampler2D map;\\n#endif\\n\";\n\n\tvar metalnessmap_fragment = \"float metalnessFactor = metalness;\\n#ifdef USE_METALNESSMAP\\n\\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\\n\\tmetalnessFactor *= texelMetalness.b;\\n#endif\\n\";\n\n\tvar metalnessmap_pars_fragment = \"#ifdef USE_METALNESSMAP\\n\\tuniform sampler2D metalnessMap;\\n#endif\";\n\n\tvar morphnormal_vertex = \"#ifdef USE_MORPHNORMALS\\n\\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\\n\\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\\n\\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\\n\\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\\n#endif\\n\";\n\n\tvar morphtarget_pars_vertex = \"#ifdef USE_MORPHTARGETS\\n\\t#ifndef USE_MORPHNORMALS\\n\\tuniform float morphTargetInfluences[ 8 ];\\n\\t#else\\n\\tuniform float morphTargetInfluences[ 4 ];\\n\\t#endif\\n#endif\";\n\n\tvar morphtarget_vertex = \"#ifdef USE_MORPHTARGETS\\n\\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\\n\\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\\n\\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\\n\\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\\n\\t#ifndef USE_MORPHNORMALS\\n\\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\\n\\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\\n\\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\\n\\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\\n\\t#endif\\n#endif\\n\";\n\n\tvar normal_fragment_begin = \"#ifdef FLAT_SHADED\\n\\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\\n\\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\\n\\tvec3 normal = normalize( cross( fdx, fdy ) );\\n#else\\n\\tvec3 normal = normalize( vNormal );\\n\\t#ifdef DOUBLE_SIDED\\n\\t\\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t#endif\\n#endif\\n\";\n\n\tvar normal_fragment_maps = \"#ifdef USE_NORMALMAP\\n\\t#ifdef OBJECTSPACE_NORMALMAP\\n\\t\\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\\n\\t\\t#ifdef FLIP_SIDED\\n\\t\\t\\tnormal = - normal;\\n\\t\\t#endif\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t\\t#endif\\n\\t\\tnormal = normalize( normalMatrix * normal );\\n\\t#else\\n\\t\\tnormal = perturbNormal2Arb( -vViewPosition, normal );\\n\\t#endif\\n#elif defined( USE_BUMPMAP )\\n\\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\\n#endif\\n\";\n\n\tvar normalmap_pars_fragment = \"#ifdef USE_NORMALMAP\\n\\tuniform sampler2D normalMap;\\n\\tuniform vec2 normalScale;\\n\\t#ifdef OBJECTSPACE_NORMALMAP\\n\\t\\tuniform mat3 normalMatrix;\\n\\t#else\\n\\t\\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\\n\\t\\t\\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\\n\\t\\t\\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\\n\\t\\t\\tvec2 st0 = dFdx( vUv.st );\\n\\t\\t\\tvec2 st1 = dFdy( vUv.st );\\n\\t\\t\\tfloat scale = sign( st1.t * st0.s - st0.t * st1.s );\\n\\t\\t\\tvec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );\\n\\t\\t\\tvec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );\\n\\t\\t\\tvec3 N = normalize( surf_norm );\\n\\t\\t\\tmat3 tsn = mat3( S, T, N );\\n\\t\\t\\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\\n\\t\\t\\tmapN.xy *= normalScale;\\n\\t\\t\\tmapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t\\t\\treturn normalize( tsn * mapN );\\n\\t\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar packing = \"vec3 packNormalToRGB( const in vec3 normal ) {\\n\\treturn normalize( normal ) * 0.5 + 0.5;\\n}\\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\\n\\treturn 2.0 * rgb.xyz - 1.0;\\n}\\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\\nconst float ShiftRight8 = 1. / 256.;\\nvec4 packDepthToRGBA( const in float v ) {\\n\\tvec4 r = vec4( fract( v * PackFactors ), v );\\n\\tr.yzw -= r.xyz * ShiftRight8;\\treturn r * PackUpscale;\\n}\\nfloat unpackRGBAToDepth( const in vec4 v ) {\\n\\treturn dot( v, UnpackFactors );\\n}\\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\\n\\treturn ( viewZ + near ) / ( near - far );\\n}\\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\\n\\treturn linearClipZ * ( near - far ) - near;\\n}\\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\\n\\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\\n}\\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\\n\\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\\n}\\n\";\n\n\tvar premultiplied_alpha_fragment = \"#ifdef PREMULTIPLIED_ALPHA\\n\\tgl_FragColor.rgb *= gl_FragColor.a;\\n#endif\\n\";\n\n\tvar project_vertex = \"vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\\ngl_Position = projectionMatrix * mvPosition;\\n\";\n\n\tvar dithering_fragment = \"#if defined( DITHERING )\\n gl_FragColor.rgb = dithering( gl_FragColor.rgb );\\n#endif\\n\";\n\n\tvar dithering_pars_fragment = \"#if defined( DITHERING )\\n\\tvec3 dithering( vec3 color ) {\\n\\t\\tfloat grid_position = rand( gl_FragCoord.xy );\\n\\t\\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\\n\\t\\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\\n\\t\\treturn color + dither_shift_RGB;\\n\\t}\\n#endif\\n\";\n\n\tvar roughnessmap_fragment = \"float roughnessFactor = roughness;\\n#ifdef USE_ROUGHNESSMAP\\n\\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\\n\\troughnessFactor *= texelRoughness.g;\\n#endif\\n\";\n\n\tvar roughnessmap_pars_fragment = \"#ifdef USE_ROUGHNESSMAP\\n\\tuniform sampler2D roughnessMap;\\n#endif\";\n\n\tvar shadowmap_pars_fragment = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n\\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\\n\\t\\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\\n\\t}\\n\\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\\n\\t\\tconst vec2 offset = vec2( 0.0, 1.0 );\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / size;\\n\\t\\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\\n\\t\\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\\n\\t\\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\\n\\t\\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\\n\\t\\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\\n\\t\\tvec2 f = fract( uv * size + 0.5 );\\n\\t\\tfloat a = mix( lb, lt, f.y );\\n\\t\\tfloat b = mix( rb, rt, f.y );\\n\\t\\tfloat c = mix( a, b, f.x );\\n\\t\\treturn c;\\n\\t}\\n\\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\\n\\t\\tfloat shadow = 1.0;\\n\\t\\tshadowCoord.xyz /= shadowCoord.w;\\n\\t\\tshadowCoord.z += shadowBias;\\n\\t\\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\\n\\t\\tbool inFrustum = all( inFrustumVec );\\n\\t\\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\\n\\t\\tbool frustumTest = all( frustumTestVec );\\n\\t\\tif ( frustumTest ) {\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\tshadow = (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\tshadow = (\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\\n\\t\\t#endif\\n\\t\\t}\\n\\t\\treturn shadow;\\n\\t}\\n\\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\\n\\t\\tvec3 absV = abs( v );\\n\\t\\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\\n\\t\\tabsV *= scaleToCube;\\n\\t\\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\\n\\t\\tvec2 planar = v.xy;\\n\\t\\tfloat almostATexel = 1.5 * texelSizeY;\\n\\t\\tfloat almostOne = 1.0 - almostATexel;\\n\\t\\tif ( absV.z >= almostOne ) {\\n\\t\\t\\tif ( v.z > 0.0 )\\n\\t\\t\\t\\tplanar.x = 4.0 - v.x;\\n\\t\\t} else if ( absV.x >= almostOne ) {\\n\\t\\t\\tfloat signX = sign( v.x );\\n\\t\\t\\tplanar.x = v.z * signX + 2.0 * signX;\\n\\t\\t} else if ( absV.y >= almostOne ) {\\n\\t\\t\\tfloat signY = sign( v.y );\\n\\t\\t\\tplanar.x = v.x + 2.0 * signY + 2.0;\\n\\t\\t\\tplanar.y = v.z * signY - 2.0;\\n\\t\\t}\\n\\t\\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\\n\\t}\\n\\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\\n\\t\\tvec3 lightToPosition = shadowCoord.xyz;\\n\\t\\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\\t\\tdp += shadowBias;\\n\\t\\tvec3 bd3D = normalize( lightToPosition );\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\\n\\t\\t\\treturn (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar shadowmap_pars_vertex = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n#endif\\n\";\n\n\tvar shadowmap_vertex = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar shadowmask_pars_fragment = \"float getShadowMask() {\\n\\tfloat shadow = 1.0;\\n\\t#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\tDirectionalLight directionalLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\tSpotLight spotLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\tPointLight pointLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#endif\\n\\treturn shadow;\\n}\\n\";\n\n\tvar skinbase_vertex = \"#ifdef USE_SKINNING\\n\\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\\n\\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\\n\\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\\n\\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\\n#endif\";\n\n\tvar skinning_pars_vertex = \"#ifdef USE_SKINNING\\n\\tuniform mat4 bindMatrix;\\n\\tuniform mat4 bindMatrixInverse;\\n\\t#ifdef BONE_TEXTURE\\n\\t\\tuniform sampler2D boneTexture;\\n\\t\\tuniform int boneTextureSize;\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tfloat j = i * 4.0;\\n\\t\\t\\tfloat x = mod( j, float( boneTextureSize ) );\\n\\t\\t\\tfloat y = floor( j / float( boneTextureSize ) );\\n\\t\\t\\tfloat dx = 1.0 / float( boneTextureSize );\\n\\t\\t\\tfloat dy = 1.0 / float( boneTextureSize );\\n\\t\\t\\ty = dy * ( y + 0.5 );\\n\\t\\t\\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\\n\\t\\t\\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\\n\\t\\t\\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\\n\\t\\t\\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\\n\\t\\t\\tmat4 bone = mat4( v1, v2, v3, v4 );\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#else\\n\\t\\tuniform mat4 boneMatrices[ MAX_BONES ];\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tmat4 bone = boneMatrices[ int(i) ];\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar skinning_vertex = \"#ifdef USE_SKINNING\\n\\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\\n\\tvec4 skinned = vec4( 0.0 );\\n\\tskinned += boneMatX * skinVertex * skinWeight.x;\\n\\tskinned += boneMatY * skinVertex * skinWeight.y;\\n\\tskinned += boneMatZ * skinVertex * skinWeight.z;\\n\\tskinned += boneMatW * skinVertex * skinWeight.w;\\n\\ttransformed = ( bindMatrixInverse * skinned ).xyz;\\n#endif\\n\";\n\n\tvar skinnormal_vertex = \"#ifdef USE_SKINNING\\n\\tmat4 skinMatrix = mat4( 0.0 );\\n\\tskinMatrix += skinWeight.x * boneMatX;\\n\\tskinMatrix += skinWeight.y * boneMatY;\\n\\tskinMatrix += skinWeight.z * boneMatZ;\\n\\tskinMatrix += skinWeight.w * boneMatW;\\n\\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\\n\\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\\n#endif\\n\";\n\n\tvar specularmap_fragment = \"float specularStrength;\\n#ifdef USE_SPECULARMAP\\n\\tvec4 texelSpecular = texture2D( specularMap, vUv );\\n\\tspecularStrength = texelSpecular.r;\\n#else\\n\\tspecularStrength = 1.0;\\n#endif\";\n\n\tvar specularmap_pars_fragment = \"#ifdef USE_SPECULARMAP\\n\\tuniform sampler2D specularMap;\\n#endif\";\n\n\tvar tonemapping_fragment = \"#if defined( TONE_MAPPING )\\n gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\\n#endif\\n\";\n\n\tvar tonemapping_pars_fragment = \"#ifndef saturate\\n\\t#define saturate(a) clamp( a, 0.0, 1.0 )\\n#endif\\nuniform float toneMappingExposure;\\nuniform float toneMappingWhitePoint;\\nvec3 LinearToneMapping( vec3 color ) {\\n\\treturn toneMappingExposure * color;\\n}\\nvec3 ReinhardToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\treturn saturate( color / ( vec3( 1.0 ) + color ) );\\n}\\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\\nvec3 Uncharted2ToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\\n}\\nvec3 OptimizedCineonToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\tcolor = max( vec3( 0.0 ), color - 0.004 );\\n\\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\\n}\\n\";\n\n\tvar uv_pars_fragment = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n#endif\";\n\n\tvar uv_pars_vertex = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n\\tuniform mat3 uvTransform;\\n#endif\\n\";\n\n\tvar uv_vertex = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\\n#endif\";\n\n\tvar uv2_pars_fragment = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvarying vec2 vUv2;\\n#endif\";\n\n\tvar uv2_pars_vertex = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tattribute vec2 uv2;\\n\\tvarying vec2 vUv2;\\n#endif\";\n\n\tvar uv2_vertex = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvUv2 = uv2;\\n#endif\";\n\n\tvar worldpos_vertex = \"#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\\n\\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\\n#endif\\n\";\n\n\tvar cube_frag = \"uniform samplerCube tCube;\\nuniform float tFlip;\\nuniform float opacity;\\nvarying vec3 vWorldPosition;\\nvoid main() {\\n\\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\\n\\tgl_FragColor.a *= opacity;\\n}\\n\";\n\n\tvar cube_vert = \"varying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include \\n\\t#include \\n\\tgl_Position.z = gl_Position.w;\\n}\\n\";\n\n\tvar depth_frag = \"#if DEPTH_PACKING == 3200\\n\\tuniform float opacity;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( 1.0 );\\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tdiffuseColor.a = opacity;\\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tgl_FragColor = vec4( vec3( 1.0 - gl_FragCoord.z ), opacity );\\n\\t#elif DEPTH_PACKING == 3201\\n\\t\\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\\n\\t#endif\\n}\\n\";\n\n\tvar depth_vert = \"#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#ifdef USE_DISPLACEMENTMAP\\n\\t\\t#include \\n\\t\\t#include \\n\\t\\t#include \\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar distanceRGBA_frag = \"#define DISTANCE\\nuniform vec3 referencePosition;\\nuniform float nearDistance;\\nuniform float farDistance;\\nvarying vec3 vWorldPosition;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main () {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( 1.0 );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\tfloat dist = length( vWorldPosition - referencePosition );\\n\\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\\n\\tdist = saturate( dist );\\n\\tgl_FragColor = packDepthToRGBA( dist );\\n}\\n\";\n\n\tvar distanceRGBA_vert = \"#define DISTANCE\\nvarying vec3 vWorldPosition;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#ifdef USE_DISPLACEMENTMAP\\n\\t\\t#include \\n\\t\\t#include \\n\\t\\t#include \\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvWorldPosition = worldPosition.xyz;\\n}\\n\";\n\n\tvar equirect_frag = \"uniform sampler2D tEquirect;\\nvarying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvec3 direction = normalize( vWorldPosition );\\n\\tvec2 sampleUV;\\n\\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\\n\\tgl_FragColor = texture2D( tEquirect, sampleUV );\\n}\\n\";\n\n\tvar equirect_vert = \"varying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar linedashed_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\nuniform float dashSize;\\nuniform float totalSize;\\nvarying float vLineDistance;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\\n\\t\\tdiscard;\\n\\t}\\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar linedashed_vert = \"uniform float scale;\\nattribute float lineDistance;\\nvarying float vLineDistance;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvLineDistance = scale * lineDistance;\\n\\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\\n\\tgl_Position = projectionMatrix * mvPosition;\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshbasic_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\t#ifdef USE_LIGHTMAP\\n\\t\\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n\\t#else\\n\\t\\treflectedLight.indirectDiffuse += vec3( 1.0 );\\n\\t#endif\\n\\t#include \\n\\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\\n\\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshbasic_vert = \"#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#ifdef USE_ENVMAP\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshlambert_frag = \"uniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float opacity;\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\\n\\t#include \\n\\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\\n\\t#ifdef DOUBLE_SIDED\\n\\t\\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\\n\\t#else\\n\\t\\treflectedLight.directDiffuse = vLightFront;\\n\\t#endif\\n\\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshlambert_vert = \"#define LAMBERT\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphong_frag = \"#define PHONG\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform vec3 specular;\\nuniform float shininess;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphong_vert = \"#define PHONG\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphysical_frag = \"#define PHYSICAL\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float roughness;\\nuniform float metalness;\\nuniform float opacity;\\n#ifndef STANDARD\\n\\tuniform float clearCoat;\\n\\tuniform float clearCoatRoughness;\\n#endif\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphysical_vert = \"#define PHYSICAL\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar normal_frag = \"#define NORMAL\\nuniform float opacity;\\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\\n}\\n\";\n\n\tvar normal_vert = \"#define NORMAL\\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\\n\\tvViewPosition = - mvPosition.xyz;\\n#endif\\n}\\n\";\n\n\tvar points_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar points_vert = \"uniform float size;\\nuniform float scale;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#ifdef USE_SIZEATTENUATION\\n\\t\\tgl_PointSize = size * ( scale / - mvPosition.z );\\n\\t#else\\n\\t\\tgl_PointSize = size;\\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar shadow_frag = \"uniform vec3 color;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\\n\\t#include \\n}\\n\";\n\n\tvar shadow_vert = \"#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar sprite_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar sprite_vert = \"uniform float rotation;\\nuniform vec2 center;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec2 scale;\\n\\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\\n\\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\\n\\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\\n\\tvec2 rotatedPosition;\\n\\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\\n\\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\\n\\tvec4 mvPosition;\\n\\tmvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\\n\\tmvPosition.xy += rotatedPosition;\\n\\tgl_Position = projectionMatrix * mvPosition;\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar ShaderChunk = {\n\t\talphamap_fragment: alphamap_fragment,\n\t\talphamap_pars_fragment: alphamap_pars_fragment,\n\t\talphatest_fragment: alphatest_fragment,\n\t\taomap_fragment: aomap_fragment,\n\t\taomap_pars_fragment: aomap_pars_fragment,\n\t\tbegin_vertex: begin_vertex,\n\t\tbeginnormal_vertex: beginnormal_vertex,\n\t\tbsdfs: bsdfs,\n\t\tbumpmap_pars_fragment: bumpmap_pars_fragment,\n\t\tclipping_planes_fragment: clipping_planes_fragment,\n\t\tclipping_planes_pars_fragment: clipping_planes_pars_fragment,\n\t\tclipping_planes_pars_vertex: clipping_planes_pars_vertex,\n\t\tclipping_planes_vertex: clipping_planes_vertex,\n\t\tcolor_fragment: color_fragment,\n\t\tcolor_pars_fragment: color_pars_fragment,\n\t\tcolor_pars_vertex: color_pars_vertex,\n\t\tcolor_vertex: color_vertex,\n\t\tcommon: common,\n\t\tcube_uv_reflection_fragment: cube_uv_reflection_fragment,\n\t\tdefaultnormal_vertex: defaultnormal_vertex,\n\t\tdisplacementmap_pars_vertex: displacementmap_pars_vertex,\n\t\tdisplacementmap_vertex: displacementmap_vertex,\n\t\temissivemap_fragment: emissivemap_fragment,\n\t\temissivemap_pars_fragment: emissivemap_pars_fragment,\n\t\tencodings_fragment: encodings_fragment,\n\t\tencodings_pars_fragment: encodings_pars_fragment,\n\t\tenvmap_fragment: envmap_fragment,\n\t\tenvmap_pars_fragment: envmap_pars_fragment,\n\t\tenvmap_pars_vertex: envmap_pars_vertex,\n\t\tenvmap_physical_pars_fragment: envmap_physical_pars_fragment,\n\t\tenvmap_vertex: envmap_vertex,\n\t\tfog_vertex: fog_vertex,\n\t\tfog_pars_vertex: fog_pars_vertex,\n\t\tfog_fragment: fog_fragment,\n\t\tfog_pars_fragment: fog_pars_fragment,\n\t\tgradientmap_pars_fragment: gradientmap_pars_fragment,\n\t\tlightmap_fragment: lightmap_fragment,\n\t\tlightmap_pars_fragment: lightmap_pars_fragment,\n\t\tlights_lambert_vertex: lights_lambert_vertex,\n\t\tlights_pars_begin: lights_pars_begin,\n\t\tlights_phong_fragment: lights_phong_fragment,\n\t\tlights_phong_pars_fragment: lights_phong_pars_fragment,\n\t\tlights_physical_fragment: lights_physical_fragment,\n\t\tlights_physical_pars_fragment: lights_physical_pars_fragment,\n\t\tlights_fragment_begin: lights_fragment_begin,\n\t\tlights_fragment_maps: lights_fragment_maps,\n\t\tlights_fragment_end: lights_fragment_end,\n\t\tlogdepthbuf_fragment: logdepthbuf_fragment,\n\t\tlogdepthbuf_pars_fragment: logdepthbuf_pars_fragment,\n\t\tlogdepthbuf_pars_vertex: logdepthbuf_pars_vertex,\n\t\tlogdepthbuf_vertex: logdepthbuf_vertex,\n\t\tmap_fragment: map_fragment,\n\t\tmap_pars_fragment: map_pars_fragment,\n\t\tmap_particle_fragment: map_particle_fragment,\n\t\tmap_particle_pars_fragment: map_particle_pars_fragment,\n\t\tmetalnessmap_fragment: metalnessmap_fragment,\n\t\tmetalnessmap_pars_fragment: metalnessmap_pars_fragment,\n\t\tmorphnormal_vertex: morphnormal_vertex,\n\t\tmorphtarget_pars_vertex: morphtarget_pars_vertex,\n\t\tmorphtarget_vertex: morphtarget_vertex,\n\t\tnormal_fragment_begin: normal_fragment_begin,\n\t\tnormal_fragment_maps: normal_fragment_maps,\n\t\tnormalmap_pars_fragment: normalmap_pars_fragment,\n\t\tpacking: packing,\n\t\tpremultiplied_alpha_fragment: premultiplied_alpha_fragment,\n\t\tproject_vertex: project_vertex,\n\t\tdithering_fragment: dithering_fragment,\n\t\tdithering_pars_fragment: dithering_pars_fragment,\n\t\troughnessmap_fragment: roughnessmap_fragment,\n\t\troughnessmap_pars_fragment: roughnessmap_pars_fragment,\n\t\tshadowmap_pars_fragment: shadowmap_pars_fragment,\n\t\tshadowmap_pars_vertex: shadowmap_pars_vertex,\n\t\tshadowmap_vertex: shadowmap_vertex,\n\t\tshadowmask_pars_fragment: shadowmask_pars_fragment,\n\t\tskinbase_vertex: skinbase_vertex,\n\t\tskinning_pars_vertex: skinning_pars_vertex,\n\t\tskinning_vertex: skinning_vertex,\n\t\tskinnormal_vertex: skinnormal_vertex,\n\t\tspecularmap_fragment: specularmap_fragment,\n\t\tspecularmap_pars_fragment: specularmap_pars_fragment,\n\t\ttonemapping_fragment: tonemapping_fragment,\n\t\ttonemapping_pars_fragment: tonemapping_pars_fragment,\n\t\tuv_pars_fragment: uv_pars_fragment,\n\t\tuv_pars_vertex: uv_pars_vertex,\n\t\tuv_vertex: uv_vertex,\n\t\tuv2_pars_fragment: uv2_pars_fragment,\n\t\tuv2_pars_vertex: uv2_pars_vertex,\n\t\tuv2_vertex: uv2_vertex,\n\t\tworldpos_vertex: worldpos_vertex,\n\n\t\tcube_frag: cube_frag,\n\t\tcube_vert: cube_vert,\n\t\tdepth_frag: depth_frag,\n\t\tdepth_vert: depth_vert,\n\t\tdistanceRGBA_frag: distanceRGBA_frag,\n\t\tdistanceRGBA_vert: distanceRGBA_vert,\n\t\tequirect_frag: equirect_frag,\n\t\tequirect_vert: equirect_vert,\n\t\tlinedashed_frag: linedashed_frag,\n\t\tlinedashed_vert: linedashed_vert,\n\t\tmeshbasic_frag: meshbasic_frag,\n\t\tmeshbasic_vert: meshbasic_vert,\n\t\tmeshlambert_frag: meshlambert_frag,\n\t\tmeshlambert_vert: meshlambert_vert,\n\t\tmeshphong_frag: meshphong_frag,\n\t\tmeshphong_vert: meshphong_vert,\n\t\tmeshphysical_frag: meshphysical_frag,\n\t\tmeshphysical_vert: meshphysical_vert,\n\t\tnormal_frag: normal_frag,\n\t\tnormal_vert: normal_vert,\n\t\tpoints_frag: points_frag,\n\t\tpoints_vert: points_vert,\n\t\tshadow_frag: shadow_frag,\n\t\tshadow_vert: shadow_vert,\n\t\tsprite_frag: sprite_frag,\n\t\tsprite_vert: sprite_vert\n\t};\n\n\t/**\n\t * Uniform Utilities\n\t */\n\n\tvar UniformsUtils = {\n\n\t\tmerge: function ( uniforms ) {\n\n\t\t\tvar merged = {};\n\n\t\t\tfor ( var u = 0; u < uniforms.length; u ++ ) {\n\n\t\t\t\tvar tmp = this.clone( uniforms[ u ] );\n\n\t\t\t\tfor ( var p in tmp ) {\n\n\t\t\t\t\tmerged[ p ] = tmp[ p ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn merged;\n\n\t\t},\n\n\t\tclone: function ( uniforms_src ) {\n\n\t\t\tvar uniforms_dst = {};\n\n\t\t\tfor ( var u in uniforms_src ) {\n\n\t\t\t\tuniforms_dst[ u ] = {};\n\n\t\t\t\tfor ( var p in uniforms_src[ u ] ) {\n\n\t\t\t\t\tvar parameter_src = uniforms_src[ u ][ p ];\n\n\t\t\t\t\tif ( parameter_src && ( parameter_src.isColor ||\n\t\t\t\t\t\tparameter_src.isMatrix3 || parameter_src.isMatrix4 ||\n\t\t\t\t\t\tparameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 ||\n\t\t\t\t\t\tparameter_src.isTexture ) ) {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src.clone();\n\n\t\t\t\t\t} else if ( Array.isArray( parameter_src ) ) {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src.slice();\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn uniforms_dst;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,\n\t\t'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,\n\t\t'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,\n\t\t'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,\n\t\t'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,\n\t\t'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,\n\t\t'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,\n\t\t'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,\n\t\t'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,\n\t\t'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,\n\t\t'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,\n\t\t'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,\n\t\t'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,\n\t\t'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,\n\t\t'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,\n\t\t'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,\n\t\t'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,\n\t\t'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,\n\t\t'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,\n\t\t'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,\n\t\t'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,\n\t\t'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,\n\t\t'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,\n\t\t'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };\n\n\tfunction Color( r, g, b ) {\n\n\t\tif ( g === undefined && b === undefined ) {\n\n\t\t\t// r is THREE.Color, hex or string\n\t\t\treturn this.set( r );\n\n\t\t}\n\n\t\treturn this.setRGB( r, g, b );\n\n\t}\n\n\tObject.assign( Color.prototype, {\n\n\t\tisColor: true,\n\n\t\tr: 1, g: 1, b: 1,\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value && value.isColor ) {\n\n\t\t\t\tthis.copy( value );\n\n\t\t\t} else if ( typeof value === 'number' ) {\n\n\t\t\t\tthis.setHex( value );\n\n\t\t\t} else if ( typeof value === 'string' ) {\n\n\t\t\t\tthis.setStyle( value );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.r = scalar;\n\t\t\tthis.g = scalar;\n\t\t\tthis.b = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetHex: function ( hex ) {\n\n\t\t\thex = Math.floor( hex );\n\n\t\t\tthis.r = ( hex >> 16 & 255 ) / 255;\n\t\t\tthis.g = ( hex >> 8 & 255 ) / 255;\n\t\t\tthis.b = ( hex & 255 ) / 255;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetRGB: function ( r, g, b ) {\n\n\t\t\tthis.r = r;\n\t\t\tthis.g = g;\n\t\t\tthis.b = b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetHSL: function () {\n\n\t\t\tfunction hue2rgb( p, q, t ) {\n\n\t\t\t\tif ( t < 0 ) t += 1;\n\t\t\t\tif ( t > 1 ) t -= 1;\n\t\t\t\tif ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;\n\t\t\t\tif ( t < 1 / 2 ) return q;\n\t\t\t\tif ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );\n\t\t\t\treturn p;\n\n\t\t\t}\n\n\t\t\treturn function setHSL( h, s, l ) {\n\n\t\t\t\t// h,s,l ranges are in 0.0 - 1.0\n\t\t\t\th = _Math.euclideanModulo( h, 1 );\n\t\t\t\ts = _Math.clamp( s, 0, 1 );\n\t\t\t\tl = _Math.clamp( l, 0, 1 );\n\n\t\t\t\tif ( s === 0 ) {\n\n\t\t\t\t\tthis.r = this.g = this.b = l;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );\n\t\t\t\t\tvar q = ( 2 * l ) - p;\n\n\t\t\t\t\tthis.r = hue2rgb( q, p, h + 1 / 3 );\n\t\t\t\t\tthis.g = hue2rgb( q, p, h );\n\t\t\t\t\tthis.b = hue2rgb( q, p, h - 1 / 3 );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetStyle: function ( style ) {\n\n\t\t\tfunction handleAlpha( string ) {\n\n\t\t\t\tif ( string === undefined ) return;\n\n\t\t\t\tif ( parseFloat( string ) < 1 ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\tvar m;\n\n\t\t\tif ( m = /^((?:rgb|hsl)a?)\\(\\s*([^\\)]*)\\)/.exec( style ) ) {\n\n\t\t\t\t// rgb / hsl\n\n\t\t\t\tvar color;\n\t\t\t\tvar name = m[ 1 ];\n\t\t\t\tvar components = m[ 2 ];\n\n\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\tcase 'rgb':\n\t\t\t\t\tcase 'rgba':\n\n\t\t\t\t\t\tif ( color = /^(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// rgb(255,0,0) rgba(255,0,0,0.5)\n\t\t\t\t\t\t\tthis.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;\n\t\t\t\t\t\t\tthis.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;\n\t\t\t\t\t\t\tthis.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( color = /^(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)\n\t\t\t\t\t\t\tthis.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;\n\t\t\t\t\t\t\tthis.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;\n\t\t\t\t\t\t\tthis.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'hsl':\n\t\t\t\t\tcase 'hsla':\n\n\t\t\t\t\t\tif ( color = /^([0-9]*\\.?[0-9]+)\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// hsl(120,50%,50%) hsla(120,50%,50%,0.5)\n\t\t\t\t\t\t\tvar h = parseFloat( color[ 1 ] ) / 360;\n\t\t\t\t\t\t\tvar s = parseInt( color[ 2 ], 10 ) / 100;\n\t\t\t\t\t\t\tvar l = parseInt( color[ 3 ], 10 ) / 100;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this.setHSL( h, s, l );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t} else if ( m = /^\\#([A-Fa-f0-9]+)$/.exec( style ) ) {\n\n\t\t\t\t// hex color\n\n\t\t\t\tvar hex = m[ 1 ];\n\t\t\t\tvar size = hex.length;\n\n\t\t\t\tif ( size === 3 ) {\n\n\t\t\t\t\t// #ff0\n\t\t\t\t\tthis.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;\n\t\t\t\t\tthis.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;\n\t\t\t\t\tthis.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t} else if ( size === 6 ) {\n\n\t\t\t\t\t// #ff0000\n\t\t\t\t\tthis.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;\n\t\t\t\t\tthis.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;\n\t\t\t\t\tthis.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( style && style.length > 0 ) {\n\n\t\t\t\t// color keywords\n\t\t\t\tvar hex = ColorKeywords[ style ];\n\n\t\t\t\tif ( hex !== undefined ) {\n\n\t\t\t\t\t// red\n\t\t\t\t\tthis.setHex( hex );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// unknown color\n\t\t\t\t\tconsole.warn( 'THREE.Color: Unknown color ' + style );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.r, this.g, this.b );\n\n\t\t},\n\n\t\tcopy: function ( color ) {\n\n\t\t\tthis.r = color.r;\n\t\t\tthis.g = color.g;\n\t\t\tthis.b = color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyGammaToLinear: function ( color, gammaFactor ) {\n\n\t\t\tif ( gammaFactor === undefined ) gammaFactor = 2.0;\n\n\t\t\tthis.r = Math.pow( color.r, gammaFactor );\n\t\t\tthis.g = Math.pow( color.g, gammaFactor );\n\t\t\tthis.b = Math.pow( color.b, gammaFactor );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyLinearToGamma: function ( color, gammaFactor ) {\n\n\t\t\tif ( gammaFactor === undefined ) gammaFactor = 2.0;\n\n\t\t\tvar safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;\n\n\t\t\tthis.r = Math.pow( color.r, safeInverse );\n\t\t\tthis.g = Math.pow( color.g, safeInverse );\n\t\t\tthis.b = Math.pow( color.b, safeInverse );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertGammaToLinear: function ( gammaFactor ) {\n\n\t\t\tthis.copyGammaToLinear( this, gammaFactor );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertLinearToGamma: function ( gammaFactor ) {\n\n\t\t\tthis.copyLinearToGamma( this, gammaFactor );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopySRGBToLinear: function () {\n\n\t\t\tfunction SRGBToLinear( c ) {\n\n\t\t\t\treturn ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 );\n\n\t\t\t}\n\n\t\t\treturn function copySRGBToLinear( color ) {\n\n\t\t\t\tthis.r = SRGBToLinear( color.r );\n\t\t\t\tthis.g = SRGBToLinear( color.g );\n\t\t\t\tthis.b = SRGBToLinear( color.b );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcopyLinearToSRGB: function () {\n\n\t\t\tfunction LinearToSRGB( c ) {\n\n\t\t\t\treturn ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055;\n\n\t\t\t}\n\n\t\t\treturn function copyLinearToSRGB( color ) {\n\n\t\t\t\tthis.r = LinearToSRGB( color.r );\n\t\t\t\tthis.g = LinearToSRGB( color.g );\n\t\t\t\tthis.b = LinearToSRGB( color.b );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tconvertSRGBToLinear: function () {\n\n\t\t\tthis.copySRGBToLinear( this );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertLinearToSRGB: function () {\n\n\t\t\tthis.copyLinearToSRGB( this );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetHex: function () {\n\n\t\t\treturn ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;\n\n\t\t},\n\n\t\tgetHexString: function () {\n\n\t\t\treturn ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );\n\n\t\t},\n\n\t\tgetHSL: function ( target ) {\n\n\t\t\t// h,s,l ranges are in 0.0 - 1.0\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Color: .getHSL() target is now required' );\n\t\t\t\ttarget = { h: 0, s: 0, l: 0 };\n\n\t\t\t}\n\n\t\t\tvar r = this.r, g = this.g, b = this.b;\n\n\t\t\tvar max = Math.max( r, g, b );\n\t\t\tvar min = Math.min( r, g, b );\n\n\t\t\tvar hue, saturation;\n\t\t\tvar lightness = ( min + max ) / 2.0;\n\n\t\t\tif ( min === max ) {\n\n\t\t\t\thue = 0;\n\t\t\t\tsaturation = 0;\n\n\t\t\t} else {\n\n\t\t\t\tvar delta = max - min;\n\n\t\t\t\tsaturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );\n\n\t\t\t\tswitch ( max ) {\n\n\t\t\t\t\tcase r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;\n\t\t\t\t\tcase g: hue = ( b - r ) / delta + 2; break;\n\t\t\t\t\tcase b: hue = ( r - g ) / delta + 4; break;\n\n\t\t\t\t}\n\n\t\t\t\thue /= 6;\n\n\t\t\t}\n\n\t\t\ttarget.h = hue;\n\t\t\ttarget.s = saturation;\n\t\t\ttarget.l = lightness;\n\n\t\t\treturn target;\n\n\t\t},\n\n\t\tgetStyle: function () {\n\n\t\t\treturn 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';\n\n\t\t},\n\n\t\toffsetHSL: function () {\n\n\t\t\tvar hsl = {};\n\n\t\t\treturn function ( h, s, l ) {\n\n\t\t\t\tthis.getHSL( hsl );\n\n\t\t\t\thsl.h += h; hsl.s += s; hsl.l += l;\n\n\t\t\t\tthis.setHSL( hsl.h, hsl.s, hsl.l );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tadd: function ( color ) {\n\n\t\t\tthis.r += color.r;\n\t\t\tthis.g += color.g;\n\t\t\tthis.b += color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddColors: function ( color1, color2 ) {\n\n\t\t\tthis.r = color1.r + color2.r;\n\t\t\tthis.g = color1.g + color2.g;\n\t\t\tthis.b = color1.b + color2.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.r += s;\n\t\t\tthis.g += s;\n\t\t\tthis.b += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( color ) {\n\n\t\t\tthis.r = Math.max( 0, this.r - color.r );\n\t\t\tthis.g = Math.max( 0, this.g - color.g );\n\t\t\tthis.b = Math.max( 0, this.b - color.b );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( color ) {\n\n\t\t\tthis.r *= color.r;\n\t\t\tthis.g *= color.g;\n\t\t\tthis.b *= color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tthis.r *= s;\n\t\t\tthis.g *= s;\n\t\t\tthis.b *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerp: function ( color, alpha ) {\n\n\t\t\tthis.r += ( color.r - this.r ) * alpha;\n\t\t\tthis.g += ( color.g - this.g ) * alpha;\n\t\t\tthis.b += ( color.b - this.b ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( c ) {\n\n\t\t\treturn ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.r = array[ offset ];\n\t\t\tthis.g = array[ offset + 1 ];\n\t\t\tthis.b = array[ offset + 2 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.r;\n\t\t\tarray[ offset + 1 ] = this.g;\n\t\t\tarray[ offset + 2 ] = this.b;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\treturn this.getHex();\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * Uniforms library for shared webgl shaders\n\t */\n\n\tvar UniformsLib = {\n\n\t\tcommon: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\n\t\t\tmap: { value: null },\n\t\t\tuvTransform: { value: new Matrix3() },\n\n\t\t\talphaMap: { value: null },\n\n\t\t},\n\n\t\tspecularmap: {\n\n\t\t\tspecularMap: { value: null },\n\n\t\t},\n\n\t\tenvmap: {\n\n\t\t\tenvMap: { value: null },\n\t\t\tflipEnvMap: { value: - 1 },\n\t\t\treflectivity: { value: 1.0 },\n\t\t\trefractionRatio: { value: 0.98 },\n\t\t\tmaxMipLevel: { value: 0 }\n\n\t\t},\n\n\t\taomap: {\n\n\t\t\taoMap: { value: null },\n\t\t\taoMapIntensity: { value: 1 }\n\n\t\t},\n\n\t\tlightmap: {\n\n\t\t\tlightMap: { value: null },\n\t\t\tlightMapIntensity: { value: 1 }\n\n\t\t},\n\n\t\temissivemap: {\n\n\t\t\temissiveMap: { value: null }\n\n\t\t},\n\n\t\tbumpmap: {\n\n\t\t\tbumpMap: { value: null },\n\t\t\tbumpScale: { value: 1 }\n\n\t\t},\n\n\t\tnormalmap: {\n\n\t\t\tnormalMap: { value: null },\n\t\t\tnormalScale: { value: new Vector2( 1, 1 ) }\n\n\t\t},\n\n\t\tdisplacementmap: {\n\n\t\t\tdisplacementMap: { value: null },\n\t\t\tdisplacementScale: { value: 1 },\n\t\t\tdisplacementBias: { value: 0 }\n\n\t\t},\n\n\t\troughnessmap: {\n\n\t\t\troughnessMap: { value: null }\n\n\t\t},\n\n\t\tmetalnessmap: {\n\n\t\t\tmetalnessMap: { value: null }\n\n\t\t},\n\n\t\tgradientmap: {\n\n\t\t\tgradientMap: { value: null }\n\n\t\t},\n\n\t\tfog: {\n\n\t\t\tfogDensity: { value: 0.00025 },\n\t\t\tfogNear: { value: 1 },\n\t\t\tfogFar: { value: 2000 },\n\t\t\tfogColor: { value: new Color( 0xffffff ) }\n\n\t\t},\n\n\t\tlights: {\n\n\t\t\tambientLightColor: { value: [] },\n\n\t\t\tdirectionalLights: { value: [], properties: {\n\t\t\t\tdirection: {},\n\t\t\t\tcolor: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {}\n\t\t\t} },\n\n\t\t\tdirectionalShadowMap: { value: [] },\n\t\t\tdirectionalShadowMatrix: { value: [] },\n\n\t\t\tspotLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\tdirection: {},\n\t\t\t\tdistance: {},\n\t\t\t\tconeCos: {},\n\t\t\t\tpenumbraCos: {},\n\t\t\t\tdecay: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {}\n\t\t\t} },\n\n\t\t\tspotShadowMap: { value: [] },\n\t\t\tspotShadowMatrix: { value: [] },\n\n\t\t\tpointLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\tdecay: {},\n\t\t\t\tdistance: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {},\n\t\t\t\tshadowCameraNear: {},\n\t\t\t\tshadowCameraFar: {}\n\t\t\t} },\n\n\t\t\tpointShadowMap: { value: [] },\n\t\t\tpointShadowMatrix: { value: [] },\n\n\t\t\themisphereLights: { value: [], properties: {\n\t\t\t\tdirection: {},\n\t\t\t\tskyColor: {},\n\t\t\t\tgroundColor: {}\n\t\t\t} },\n\n\t\t\t// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src\n\t\t\trectAreaLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\twidth: {},\n\t\t\t\theight: {}\n\t\t\t} }\n\n\t\t},\n\n\t\tpoints: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\t\t\tsize: { value: 1.0 },\n\t\t\tscale: { value: 1.0 },\n\t\t\tmap: { value: null },\n\t\t\tuvTransform: { value: new Matrix3() }\n\n\t\t},\n\n\t\tsprite: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\t\t\tcenter: { value: new Vector2( 0.5, 0.5 ) },\n\t\t\trotation: { value: 0.0 },\n\t\t\tmap: { value: null },\n\t\t\tuvTransform: { value: new Matrix3() }\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t */\n\n\tvar ShaderLib = {\n\n\t\tbasic: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.specularmap,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.fog\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshbasic_vert,\n\t\t\tfragmentShader: ShaderChunk.meshbasic_frag\n\n\t\t},\n\n\t\tlambert: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.specularmap,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\t\t\t\t{\n\t\t\t\t\temissive: { value: new Color( 0x000000 ) }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshlambert_vert,\n\t\t\tfragmentShader: ShaderChunk.meshlambert_frag\n\n\t\t},\n\n\t\tphong: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.specularmap,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\tUniformsLib.gradientmap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\t\t\t\t{\n\t\t\t\t\temissive: { value: new Color( 0x000000 ) },\n\t\t\t\t\tspecular: { value: new Color( 0x111111 ) },\n\t\t\t\t\tshininess: { value: 30 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshphong_vert,\n\t\t\tfragmentShader: ShaderChunk.meshphong_frag\n\n\t\t},\n\n\t\tstandard: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\tUniformsLib.roughnessmap,\n\t\t\t\tUniformsLib.metalnessmap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\t\t\t\t{\n\t\t\t\t\temissive: { value: new Color( 0x000000 ) },\n\t\t\t\t\troughness: { value: 0.5 },\n\t\t\t\t\tmetalness: { value: 0.5 },\n\t\t\t\t\tenvMapIntensity: { value: 1 } // temporary\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshphysical_vert,\n\t\t\tfragmentShader: ShaderChunk.meshphysical_frag\n\n\t\t},\n\n\t\tpoints: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.points,\n\t\t\t\tUniformsLib.fog\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.points_vert,\n\t\t\tfragmentShader: ShaderChunk.points_frag\n\n\t\t},\n\n\t\tdashed: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\t{\n\t\t\t\t\tscale: { value: 1 },\n\t\t\t\t\tdashSize: { value: 1 },\n\t\t\t\t\ttotalSize: { value: 2 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.linedashed_vert,\n\t\t\tfragmentShader: ShaderChunk.linedashed_frag\n\n\t\t},\n\n\t\tdepth: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.displacementmap\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.depth_vert,\n\t\t\tfragmentShader: ShaderChunk.depth_frag\n\n\t\t},\n\n\t\tnormal: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\t{\n\t\t\t\t\topacity: { value: 1.0 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.normal_vert,\n\t\t\tfragmentShader: ShaderChunk.normal_frag\n\n\t\t},\n\n\t\tsprite: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.sprite,\n\t\t\t\tUniformsLib.fog\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.sprite_vert,\n\t\t\tfragmentShader: ShaderChunk.sprite_frag\n\n\t\t},\n\n\t\t/* -------------------------------------------------------------------------\n\t\t//\tCube map shader\n\t\t ------------------------------------------------------------------------- */\n\n\t\tcube: {\n\n\t\t\tuniforms: {\n\t\t\t\ttCube: { value: null },\n\t\t\t\ttFlip: { value: - 1 },\n\t\t\t\topacity: { value: 1.0 }\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.cube_vert,\n\t\t\tfragmentShader: ShaderChunk.cube_frag\n\n\t\t},\n\n\t\tequirect: {\n\n\t\t\tuniforms: {\n\t\t\t\ttEquirect: { value: null },\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.equirect_vert,\n\t\t\tfragmentShader: ShaderChunk.equirect_frag\n\n\t\t},\n\n\t\tdistanceRGBA: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\t{\n\t\t\t\t\treferencePosition: { value: new Vector3() },\n\t\t\t\t\tnearDistance: { value: 1 },\n\t\t\t\t\tfarDistance: { value: 1000 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.distanceRGBA_vert,\n\t\t\tfragmentShader: ShaderChunk.distanceRGBA_frag\n\n\t\t},\n\n\t\tshadow: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.lights,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\t{\n\t\t\t\t\tcolor: { value: new Color( 0x00000 ) },\n\t\t\t\t\topacity: { value: 1.0 }\n\t\t\t\t},\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.shadow_vert,\n\t\t\tfragmentShader: ShaderChunk.shadow_frag\n\n\t\t}\n\n\t};\n\n\tShaderLib.physical = {\n\n\t\tuniforms: UniformsUtils.merge( [\n\t\t\tShaderLib.standard.uniforms,\n\t\t\t{\n\t\t\t\tclearCoat: { value: 0 },\n\t\t\t\tclearCoatRoughness: { value: 0 }\n\t\t\t}\n\t\t] ),\n\n\t\tvertexShader: ShaderChunk.meshphysical_vert,\n\t\tfragmentShader: ShaderChunk.meshphysical_frag\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLAnimation() {\n\n\t\tvar context = null;\n\t\tvar isAnimating = false;\n\t\tvar animationLoop = null;\n\n\t\tfunction onAnimationFrame( time, frame ) {\n\n\t\t\tif ( isAnimating === false ) return;\n\n\t\t\tanimationLoop( time, frame );\n\n\t\t\tcontext.requestAnimationFrame( onAnimationFrame );\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tstart: function () {\n\n\t\t\t\tif ( isAnimating === true ) return;\n\t\t\t\tif ( animationLoop === null ) return;\n\n\t\t\t\tcontext.requestAnimationFrame( onAnimationFrame );\n\n\t\t\t\tisAnimating = true;\n\n\t\t\t},\n\n\t\t\tstop: function () {\n\n\t\t\t\tisAnimating = false;\n\n\t\t\t},\n\n\t\t\tsetAnimationLoop: function ( callback ) {\n\n\t\t\t\tanimationLoop = callback;\n\n\t\t\t},\n\n\t\t\tsetContext: function ( value ) {\n\n\t\t\t\tcontext = value;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLAttributes( gl ) {\n\n\t\tvar buffers = new WeakMap();\n\n\t\tfunction createBuffer( attribute, bufferType ) {\n\n\t\t\tvar array = attribute.array;\n\t\t\tvar usage = attribute.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;\n\n\t\t\tvar buffer = gl.createBuffer();\n\n\t\t\tgl.bindBuffer( bufferType, buffer );\n\t\t\tgl.bufferData( bufferType, array, usage );\n\n\t\t\tattribute.onUploadCallback();\n\n\t\t\tvar type = gl.FLOAT;\n\n\t\t\tif ( array instanceof Float32Array ) {\n\n\t\t\t\ttype = gl.FLOAT;\n\n\t\t\t} else if ( array instanceof Float64Array ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );\n\n\t\t\t} else if ( array instanceof Uint16Array ) {\n\n\t\t\t\ttype = gl.UNSIGNED_SHORT;\n\n\t\t\t} else if ( array instanceof Int16Array ) {\n\n\t\t\t\ttype = gl.SHORT;\n\n\t\t\t} else if ( array instanceof Uint32Array ) {\n\n\t\t\t\ttype = gl.UNSIGNED_INT;\n\n\t\t\t} else if ( array instanceof Int32Array ) {\n\n\t\t\t\ttype = gl.INT;\n\n\t\t\t} else if ( array instanceof Int8Array ) {\n\n\t\t\t\ttype = gl.BYTE;\n\n\t\t\t} else if ( array instanceof Uint8Array ) {\n\n\t\t\t\ttype = gl.UNSIGNED_BYTE;\n\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\tbuffer: buffer,\n\t\t\t\ttype: type,\n\t\t\t\tbytesPerElement: array.BYTES_PER_ELEMENT,\n\t\t\t\tversion: attribute.version\n\t\t\t};\n\n\t\t}\n\n\t\tfunction updateBuffer( buffer, attribute, bufferType ) {\n\n\t\t\tvar array = attribute.array;\n\t\t\tvar updateRange = attribute.updateRange;\n\n\t\t\tgl.bindBuffer( bufferType, buffer );\n\n\t\t\tif ( attribute.dynamic === false ) {\n\n\t\t\t\tgl.bufferData( bufferType, array, gl.STATIC_DRAW );\n\n\t\t\t} else if ( updateRange.count === - 1 ) {\n\n\t\t\t\t// Not using update ranges\n\n\t\t\t\tgl.bufferSubData( bufferType, 0, array );\n\n\t\t\t} else if ( updateRange.count === 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );\n\n\t\t\t} else {\n\n\t\t\t\tgl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,\n\t\t\t\t\tarray.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );\n\n\t\t\t\tupdateRange.count = - 1; // reset range\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tfunction get( attribute ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;\n\n\t\t\treturn buffers.get( attribute );\n\n\t\t}\n\n\t\tfunction remove( attribute ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;\n\n\t\t\tvar data = buffers.get( attribute );\n\n\t\t\tif ( data ) {\n\n\t\t\t\tgl.deleteBuffer( data.buffer );\n\n\t\t\t\tbuffers.delete( attribute );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction update( attribute, bufferType ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;\n\n\t\t\tvar data = buffers.get( attribute );\n\n\t\t\tif ( data === undefined ) {\n\n\t\t\t\tbuffers.set( attribute, createBuffer( attribute, bufferType ) );\n\n\t\t\t} else if ( data.version < attribute.version ) {\n\n\t\t\t\tupdateBuffer( data.buffer, attribute, bufferType );\n\n\t\t\t\tdata.version = attribute.version;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tget: get,\n\t\t\tremove: remove,\n\t\t\tupdate: update\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Euler( x, y, z, order ) {\n\n\t\tthis._x = x || 0;\n\t\tthis._y = y || 0;\n\t\tthis._z = z || 0;\n\t\tthis._order = order || Euler.DefaultOrder;\n\n\t}\n\n\tEuler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];\n\n\tEuler.DefaultOrder = 'XYZ';\n\n\tObject.defineProperties( Euler.prototype, {\n\n\t\tx: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._x;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._x = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\ty: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._y;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._y = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\tz: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._z;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._z = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\torder: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._order;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._order = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Euler.prototype, {\n\n\t\tisEuler: true,\n\n\t\tset: function ( x, y, z, order ) {\n\n\t\t\tthis._x = x;\n\t\t\tthis._y = y;\n\t\t\tthis._z = z;\n\t\t\tthis._order = order || this._order;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this._x, this._y, this._z, this._order );\n\n\t\t},\n\n\t\tcopy: function ( euler ) {\n\n\t\t\tthis._x = euler._x;\n\t\t\tthis._y = euler._y;\n\t\t\tthis._z = euler._z;\n\t\t\tthis._order = euler._order;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromRotationMatrix: function ( m, order, update ) {\n\n\t\t\tvar clamp = _Math.clamp;\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar te = m.elements;\n\t\t\tvar m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];\n\t\t\tvar m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];\n\t\t\tvar m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];\n\n\t\t\torder = order || this._order;\n\n\t\t\tif ( order === 'XYZ' ) {\n\n\t\t\t\tthis._y = Math.asin( clamp( m13, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m13 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m33 );\n\t\t\t\t\tthis._z = Math.atan2( - m12, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m22 );\n\t\t\t\t\tthis._z = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'YXZ' ) {\n\n\t\t\t\tthis._x = Math.asin( - clamp( m23, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m23 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._y = Math.atan2( m13, m33 );\n\t\t\t\t\tthis._z = Math.atan2( m21, m22 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._y = Math.atan2( - m31, m11 );\n\t\t\t\t\tthis._z = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'ZXY' ) {\n\n\t\t\t\tthis._x = Math.asin( clamp( m32, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m32 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._y = Math.atan2( - m31, m33 );\n\t\t\t\t\tthis._z = Math.atan2( - m12, m22 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._y = 0;\n\t\t\t\t\tthis._z = Math.atan2( m21, m11 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'ZYX' ) {\n\n\t\t\t\tthis._y = Math.asin( - clamp( m31, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m31 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m33 );\n\t\t\t\t\tthis._z = Math.atan2( m21, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = 0;\n\t\t\t\t\tthis._z = Math.atan2( - m12, m22 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'YZX' ) {\n\n\t\t\t\tthis._z = Math.asin( clamp( m21, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m21 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m22 );\n\t\t\t\t\tthis._y = Math.atan2( - m31, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = 0;\n\t\t\t\t\tthis._y = Math.atan2( m13, m33 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'XZY' ) {\n\n\t\t\t\tthis._z = Math.asin( - clamp( m12, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m12 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m22 );\n\t\t\t\t\tthis._y = Math.atan2( m13, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m33 );\n\t\t\t\t\tthis._y = 0;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );\n\n\t\t\t}\n\n\t\t\tthis._order = order;\n\n\t\t\tif ( update !== false ) this.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromQuaternion: function () {\n\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function setFromQuaternion( q, order, update ) {\n\n\t\t\t\tmatrix.makeRotationFromQuaternion( q );\n\n\t\t\t\treturn this.setFromRotationMatrix( matrix, order, update );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromVector3: function ( v, order ) {\n\n\t\t\treturn this.set( v.x, v.y, v.z, order || this._order );\n\n\t\t},\n\n\t\treorder: function () {\n\n\t\t\t// WARNING: this discards revolution information -bhouston\n\n\t\t\tvar q = new Quaternion();\n\n\t\t\treturn function reorder( newOrder ) {\n\n\t\t\t\tq.setFromEuler( this );\n\n\t\t\t\treturn this.setFromQuaternion( q, newOrder );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tequals: function ( euler ) {\n\n\t\t\treturn ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );\n\n\t\t},\n\n\t\tfromArray: function ( array ) {\n\n\t\t\tthis._x = array[ 0 ];\n\t\t\tthis._y = array[ 1 ];\n\t\t\tthis._z = array[ 2 ];\n\t\t\tif ( array[ 3 ] !== undefined ) this._order = array[ 3 ];\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this._x;\n\t\t\tarray[ offset + 1 ] = this._y;\n\t\t\tarray[ offset + 2 ] = this._z;\n\t\t\tarray[ offset + 3 ] = this._order;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\ttoVector3: function ( optionalResult ) {\n\n\t\t\tif ( optionalResult ) {\n\n\t\t\t\treturn optionalResult.set( this._x, this._y, this._z );\n\n\t\t\t} else {\n\n\t\t\t\treturn new Vector3( this._x, this._y, this._z );\n\n\t\t\t}\n\n\t\t},\n\n\t\tonChange: function ( callback ) {\n\n\t\t\tthis.onChangeCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonChangeCallback: function () {}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Layers() {\n\n\t\tthis.mask = 1 | 0;\n\n\t}\n\n\tObject.assign( Layers.prototype, {\n\n\t\tset: function ( channel ) {\n\n\t\t\tthis.mask = 1 << channel | 0;\n\n\t\t},\n\n\t\tenable: function ( channel ) {\n\n\t\t\tthis.mask |= 1 << channel | 0;\n\n\t\t},\n\n\t\ttoggle: function ( channel ) {\n\n\t\t\tthis.mask ^= 1 << channel | 0;\n\n\t\t},\n\n\t\tdisable: function ( channel ) {\n\n\t\t\tthis.mask &= ~ ( 1 << channel | 0 );\n\n\t\t},\n\n\t\ttest: function ( layers ) {\n\n\t\t\treturn ( this.mask & layers.mask ) !== 0;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author elephantatwork / www.elephantatwork.ch\n\t */\n\n\tvar object3DId = 0;\n\n\tfunction Object3D() {\n\n\t\tObject.defineProperty( this, 'id', { value: object3DId ++ } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Object3D';\n\n\t\tthis.parent = null;\n\t\tthis.children = [];\n\n\t\tthis.up = Object3D.DefaultUp.clone();\n\n\t\tvar position = new Vector3();\n\t\tvar rotation = new Euler();\n\t\tvar quaternion = new Quaternion();\n\t\tvar scale = new Vector3( 1, 1, 1 );\n\n\t\tfunction onRotationChange() {\n\n\t\t\tquaternion.setFromEuler( rotation, false );\n\n\t\t}\n\n\t\tfunction onQuaternionChange() {\n\n\t\t\trotation.setFromQuaternion( quaternion, undefined, false );\n\n\t\t}\n\n\t\trotation.onChange( onRotationChange );\n\t\tquaternion.onChange( onQuaternionChange );\n\n\t\tObject.defineProperties( this, {\n\t\t\tposition: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: position\n\t\t\t},\n\t\t\trotation: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: rotation\n\t\t\t},\n\t\t\tquaternion: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: quaternion\n\t\t\t},\n\t\t\tscale: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: scale\n\t\t\t},\n\t\t\tmodelViewMatrix: {\n\t\t\t\tvalue: new Matrix4()\n\t\t\t},\n\t\t\tnormalMatrix: {\n\t\t\t\tvalue: new Matrix3()\n\t\t\t}\n\t\t} );\n\n\t\tthis.matrix = new Matrix4();\n\t\tthis.matrixWorld = new Matrix4();\n\n\t\tthis.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;\n\t\tthis.matrixWorldNeedsUpdate = false;\n\n\t\tthis.layers = new Layers();\n\t\tthis.visible = true;\n\n\t\tthis.castShadow = false;\n\t\tthis.receiveShadow = false;\n\n\t\tthis.frustumCulled = true;\n\t\tthis.renderOrder = 0;\n\n\t\tthis.userData = {};\n\n\t}\n\n\tObject3D.DefaultUp = new Vector3( 0, 1, 0 );\n\tObject3D.DefaultMatrixAutoUpdate = true;\n\n\tObject3D.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Object3D,\n\n\t\tisObject3D: true,\n\n\t\tonBeforeRender: function () {},\n\t\tonAfterRender: function () {},\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tthis.matrix.multiplyMatrices( matrix, this.matrix );\n\n\t\t\tthis.matrix.decompose( this.position, this.quaternion, this.scale );\n\n\t\t},\n\n\t\tapplyQuaternion: function ( q ) {\n\n\t\t\tthis.quaternion.premultiply( q );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetRotationFromAxisAngle: function ( axis, angle ) {\n\n\t\t\t// assumes axis is normalized\n\n\t\t\tthis.quaternion.setFromAxisAngle( axis, angle );\n\n\t\t},\n\n\t\tsetRotationFromEuler: function ( euler ) {\n\n\t\t\tthis.quaternion.setFromEuler( euler, true );\n\n\t\t},\n\n\t\tsetRotationFromMatrix: function ( m ) {\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tthis.quaternion.setFromRotationMatrix( m );\n\n\t\t},\n\n\t\tsetRotationFromQuaternion: function ( q ) {\n\n\t\t\t// assumes q is normalized\n\n\t\t\tthis.quaternion.copy( q );\n\n\t\t},\n\n\t\trotateOnAxis: function () {\n\n\t\t\t// rotate object on axis in object space\n\t\t\t// axis is assumed to be normalized\n\n\t\t\tvar q1 = new Quaternion();\n\n\t\t\treturn function rotateOnAxis( axis, angle ) {\n\n\t\t\t\tq1.setFromAxisAngle( axis, angle );\n\n\t\t\t\tthis.quaternion.multiply( q1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateOnWorldAxis: function () {\n\n\t\t\t// rotate object on axis in world space\n\t\t\t// axis is assumed to be normalized\n\t\t\t// method assumes no rotated parent\n\n\t\t\tvar q1 = new Quaternion();\n\n\t\t\treturn function rotateOnWorldAxis( axis, angle ) {\n\n\t\t\t\tq1.setFromAxisAngle( axis, angle );\n\n\t\t\t\tthis.quaternion.premultiply( q1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateX: function () {\n\n\t\t\tvar v1 = new Vector3( 1, 0, 0 );\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 1, 0 );\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 0, 1 );\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateOnAxis: function () {\n\n\t\t\t// translate object by distance along axis in object space\n\t\t\t// axis is assumed to be normalized\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function translateOnAxis( axis, distance ) {\n\n\t\t\t\tv1.copy( axis ).applyQuaternion( this.quaternion );\n\n\t\t\t\tthis.position.add( v1.multiplyScalar( distance ) );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateX: function () {\n\n\t\t\tvar v1 = new Vector3( 1, 0, 0 );\n\n\t\t\treturn function translateX( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateY: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 1, 0 );\n\n\t\t\treturn function translateY( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateZ: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 0, 1 );\n\n\t\t\treturn function translateZ( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlocalToWorld: function ( vector ) {\n\n\t\t\treturn vector.applyMatrix4( this.matrixWorld );\n\n\t\t},\n\n\t\tworldToLocal: function () {\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function worldToLocal( vector ) {\n\n\t\t\t\treturn vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\t// This method does not support objects with rotated and/or translated parent(s)\n\n\t\t\tvar m1 = new Matrix4();\n\t\t\tvar vector = new Vector3();\n\n\t\t\treturn function lookAt( x, y, z ) {\n\n\t\t\t\tif ( x.isVector3 ) {\n\n\t\t\t\t\tvector.copy( x );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvector.set( x, y, z );\n\n\t\t\t\t}\n\n\t\t\t\tif ( this.isCamera ) {\n\n\t\t\t\t\tm1.lookAt( this.position, vector, this.up );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tm1.lookAt( vector, this.position, this.up );\n\n\t\t\t\t}\n\n\t\t\t\tthis.quaternion.setFromRotationMatrix( m1 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tadd: function ( object ) {\n\n\t\t\tif ( arguments.length > 1 ) {\n\n\t\t\t\tfor ( var i = 0; i < arguments.length; i ++ ) {\n\n\t\t\t\t\tthis.add( arguments[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tif ( object === this ) {\n\n\t\t\t\tconsole.error( \"THREE.Object3D.add: object can't be added as a child of itself.\", object );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tif ( ( object && object.isObject3D ) ) {\n\n\t\t\t\tif ( object.parent !== null ) {\n\n\t\t\t\t\tobject.parent.remove( object );\n\n\t\t\t\t}\n\n\t\t\t\tobject.parent = this;\n\t\t\t\tobject.dispatchEvent( { type: 'added' } );\n\n\t\t\t\tthis.children.push( object );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.error( \"THREE.Object3D.add: object not an instance of THREE.Object3D.\", object );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tremove: function ( object ) {\n\n\t\t\tif ( arguments.length > 1 ) {\n\n\t\t\t\tfor ( var i = 0; i < arguments.length; i ++ ) {\n\n\t\t\t\t\tthis.remove( arguments[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar index = this.children.indexOf( object );\n\n\t\t\tif ( index !== - 1 ) {\n\n\t\t\t\tobject.parent = null;\n\n\t\t\t\tobject.dispatchEvent( { type: 'removed' } );\n\n\t\t\t\tthis.children.splice( index, 1 );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetObjectById: function ( id ) {\n\n\t\t\treturn this.getObjectByProperty( 'id', id );\n\n\t\t},\n\n\t\tgetObjectByName: function ( name ) {\n\n\t\t\treturn this.getObjectByProperty( 'name', name );\n\n\t\t},\n\n\t\tgetObjectByProperty: function ( name, value ) {\n\n\t\t\tif ( this[ name ] === value ) return this;\n\n\t\t\tfor ( var i = 0, l = this.children.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = this.children[ i ];\n\t\t\t\tvar object = child.getObjectByProperty( name, value );\n\n\t\t\t\tif ( object !== undefined ) {\n\n\t\t\t\t\treturn object;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn undefined;\n\n\t\t},\n\n\t\tgetWorldPosition: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldPosition() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\treturn target.setFromMatrixPosition( this.matrixWorld );\n\n\t\t},\n\n\t\tgetWorldQuaternion: function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar scale = new Vector3();\n\n\t\t\treturn function getWorldQuaternion( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldQuaternion() target is now required' );\n\t\t\t\t\ttarget = new Quaternion();\n\n\t\t\t\t}\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.matrixWorld.decompose( position, target, scale );\n\n\t\t\t\treturn target;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetWorldScale: function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldScale( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldScale() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, target );\n\n\t\t\t\treturn target;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetWorldDirection: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldDirection( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldDirection() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tthis.getWorldQuaternion( quaternion );\n\n\t\t\t\treturn target.set( 0, 0, 1 ).applyQuaternion( quaternion );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\traycast: function () {},\n\n\t\ttraverse: function ( callback ) {\n\n\t\t\tcallback( this );\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].traverse( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttraverseVisible: function ( callback ) {\n\n\t\t\tif ( this.visible === false ) return;\n\n\t\t\tcallback( this );\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].traverseVisible( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttraverseAncestors: function ( callback ) {\n\n\t\t\tvar parent = this.parent;\n\n\t\t\tif ( parent !== null ) {\n\n\t\t\t\tcallback( parent );\n\n\t\t\t\tparent.traverseAncestors( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdateMatrix: function () {\n\n\t\t\tthis.matrix.compose( this.position, this.quaternion, this.scale );\n\n\t\t\tthis.matrixWorldNeedsUpdate = true;\n\n\t\t},\n\n\t\tupdateMatrixWorld: function ( force ) {\n\n\t\t\tif ( this.matrixAutoUpdate ) this.updateMatrix();\n\n\t\t\tif ( this.matrixWorldNeedsUpdate || force ) {\n\n\t\t\t\tif ( this.parent === null ) {\n\n\t\t\t\t\tthis.matrixWorld.copy( this.matrix );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );\n\n\t\t\t\t}\n\n\t\t\t\tthis.matrixWorldNeedsUpdate = false;\n\n\t\t\t\tforce = true;\n\n\t\t\t}\n\n\t\t\t// update children\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].updateMatrixWorld( force );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\t// meta is a string when called from JSON.stringify\n\t\t\tvar isRootObject = ( meta === undefined || typeof meta === 'string' );\n\n\t\t\tvar output = {};\n\n\t\t\t// meta is a hash used to collect geometries, materials.\n\t\t\t// not providing it implies that this is the root object\n\t\t\t// being serialized.\n\t\t\tif ( isRootObject ) {\n\n\t\t\t\t// initialize meta obj\n\t\t\t\tmeta = {\n\t\t\t\t\tgeometries: {},\n\t\t\t\t\tmaterials: {},\n\t\t\t\t\ttextures: {},\n\t\t\t\t\timages: {},\n\t\t\t\t\tshapes: {}\n\t\t\t\t};\n\n\t\t\t\toutput.metadata = {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Object',\n\t\t\t\t\tgenerator: 'Object3D.toJSON'\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\t// standard Object3D serialization\n\n\t\t\tvar object = {};\n\n\t\t\tobject.uuid = this.uuid;\n\t\t\tobject.type = this.type;\n\n\t\t\tif ( this.name !== '' ) object.name = this.name;\n\t\t\tif ( this.castShadow === true ) object.castShadow = true;\n\t\t\tif ( this.receiveShadow === true ) object.receiveShadow = true;\n\t\t\tif ( this.visible === false ) object.visible = false;\n\t\t\tif ( this.frustumCulled === false ) object.frustumCulled = false;\n\t\t\tif ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder;\n\t\t\tif ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;\n\n\t\t\tobject.layers = this.layers.mask;\n\t\t\tobject.matrix = this.matrix.toArray();\n\n\t\t\tif ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false;\n\n\t\t\t//\n\n\t\t\tfunction serialize( library, element ) {\n\n\t\t\t\tif ( library[ element.uuid ] === undefined ) {\n\n\t\t\t\t\tlibrary[ element.uuid ] = element.toJSON( meta );\n\n\t\t\t\t}\n\n\t\t\t\treturn element.uuid;\n\n\t\t\t}\n\n\t\t\tif ( this.isMesh || this.isLine || this.isPoints ) {\n\n\t\t\t\tobject.geometry = serialize( meta.geometries, this.geometry );\n\n\t\t\t\tvar parameters = this.geometry.parameters;\n\n\t\t\t\tif ( parameters !== undefined && parameters.shapes !== undefined ) {\n\n\t\t\t\t\tvar shapes = parameters.shapes;\n\n\t\t\t\t\tif ( Array.isArray( shapes ) ) {\n\n\t\t\t\t\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tvar shape = shapes[ i ];\n\n\t\t\t\t\t\t\tserialize( meta.shapes, shape );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tserialize( meta.shapes, shapes );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.material !== undefined ) {\n\n\t\t\t\tif ( Array.isArray( this.material ) ) {\n\n\t\t\t\t\tvar uuids = [];\n\n\t\t\t\t\tfor ( var i = 0, l = this.material.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tuuids.push( serialize( meta.materials, this.material[ i ] ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tobject.material = uuids;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tobject.material = serialize( meta.materials, this.material );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( this.children.length > 0 ) {\n\n\t\t\t\tobject.children = [];\n\n\t\t\t\tfor ( var i = 0; i < this.children.length; i ++ ) {\n\n\t\t\t\t\tobject.children.push( this.children[ i ].toJSON( meta ).object );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( isRootObject ) {\n\n\t\t\t\tvar geometries = extractFromCache( meta.geometries );\n\t\t\t\tvar materials = extractFromCache( meta.materials );\n\t\t\t\tvar textures = extractFromCache( meta.textures );\n\t\t\t\tvar images = extractFromCache( meta.images );\n\t\t\t\tvar shapes = extractFromCache( meta.shapes );\n\n\t\t\t\tif ( geometries.length > 0 ) output.geometries = geometries;\n\t\t\t\tif ( materials.length > 0 ) output.materials = materials;\n\t\t\t\tif ( textures.length > 0 ) output.textures = textures;\n\t\t\t\tif ( images.length > 0 ) output.images = images;\n\t\t\t\tif ( shapes.length > 0 ) output.shapes = shapes;\n\n\t\t\t}\n\n\t\t\toutput.object = object;\n\n\t\t\treturn output;\n\n\t\t\t// extract data from the cache hash\n\t\t\t// remove metadata on each item\n\t\t\t// and return as array\n\t\t\tfunction extractFromCache( cache ) {\n\n\t\t\t\tvar values = [];\n\t\t\t\tfor ( var key in cache ) {\n\n\t\t\t\t\tvar data = cache[ key ];\n\t\t\t\t\tdelete data.metadata;\n\t\t\t\t\tvalues.push( data );\n\n\t\t\t\t}\n\t\t\t\treturn values;\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function ( recursive ) {\n\n\t\t\treturn new this.constructor().copy( this, recursive );\n\n\t\t},\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tif ( recursive === undefined ) recursive = true;\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.up.copy( source.up );\n\n\t\t\tthis.position.copy( source.position );\n\t\t\tthis.quaternion.copy( source.quaternion );\n\t\t\tthis.scale.copy( source.scale );\n\n\t\t\tthis.matrix.copy( source.matrix );\n\t\t\tthis.matrixWorld.copy( source.matrixWorld );\n\n\t\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\t\t\tthis.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;\n\n\t\t\tthis.layers.mask = source.layers.mask;\n\t\t\tthis.visible = source.visible;\n\n\t\t\tthis.castShadow = source.castShadow;\n\t\t\tthis.receiveShadow = source.receiveShadow;\n\n\t\t\tthis.frustumCulled = source.frustumCulled;\n\t\t\tthis.renderOrder = source.renderOrder;\n\n\t\t\tthis.userData = JSON.parse( JSON.stringify( source.userData ) );\n\n\t\t\tif ( recursive === true ) {\n\n\t\t\t\tfor ( var i = 0; i < source.children.length; i ++ ) {\n\n\t\t\t\t\tvar child = source.children[ i ];\n\t\t\t\t\tthis.add( child.clone() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author WestLangley / http://github.com/WestLangley\n\t*/\n\n\tfunction Camera() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Camera';\n\n\t\tthis.matrixWorldInverse = new Matrix4();\n\t\tthis.projectionMatrix = new Matrix4();\n\n\t}\n\n\tCamera.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Camera,\n\n\t\tisCamera: true,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source, recursive );\n\n\t\t\tthis.matrixWorldInverse.copy( source.matrixWorldInverse );\n\t\t\tthis.projectionMatrix.copy( source.projectionMatrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetWorldDirection: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldDirection( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Camera: .getWorldDirection() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tthis.getWorldQuaternion( quaternion );\n\n\t\t\t\treturn target.set( 0, 0, - 1 ).applyQuaternion( quaternion );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tupdateMatrixWorld: function ( force ) {\n\n\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\tthis.matrixWorldInverse.getInverse( this.matrixWorld );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author arose / http://github.com/arose\n\t */\n\n\tfunction OrthographicCamera( left, right, top, bottom, near, far ) {\n\n\t\tCamera.call( this );\n\n\t\tthis.type = 'OrthographicCamera';\n\n\t\tthis.zoom = 1;\n\t\tthis.view = null;\n\n\t\tthis.left = left;\n\t\tthis.right = right;\n\t\tthis.top = top;\n\t\tthis.bottom = bottom;\n\n\t\tthis.near = ( near !== undefined ) ? near : 0.1;\n\t\tthis.far = ( far !== undefined ) ? far : 2000;\n\n\t\tthis.updateProjectionMatrix();\n\n\t}\n\n\tOrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {\n\n\t\tconstructor: OrthographicCamera,\n\n\t\tisOrthographicCamera: true,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tCamera.prototype.copy.call( this, source, recursive );\n\n\t\t\tthis.left = source.left;\n\t\t\tthis.right = source.right;\n\t\t\tthis.top = source.top;\n\t\t\tthis.bottom = source.bottom;\n\t\t\tthis.near = source.near;\n\t\t\tthis.far = source.far;\n\n\t\t\tthis.zoom = source.zoom;\n\t\t\tthis.view = source.view === null ? null : Object.assign( {}, source.view );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {\n\n\t\t\tif ( this.view === null ) {\n\n\t\t\t\tthis.view = {\n\t\t\t\t\tenabled: true,\n\t\t\t\t\tfullWidth: 1,\n\t\t\t\t\tfullHeight: 1,\n\t\t\t\t\toffsetX: 0,\n\t\t\t\t\toffsetY: 0,\n\t\t\t\t\twidth: 1,\n\t\t\t\t\theight: 1\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tthis.view.enabled = true;\n\t\t\tthis.view.fullWidth = fullWidth;\n\t\t\tthis.view.fullHeight = fullHeight;\n\t\t\tthis.view.offsetX = x;\n\t\t\tthis.view.offsetY = y;\n\t\t\tthis.view.width = width;\n\t\t\tthis.view.height = height;\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tclearViewOffset: function () {\n\n\t\t\tif ( this.view !== null ) {\n\n\t\t\t\tthis.view.enabled = false;\n\n\t\t\t}\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tupdateProjectionMatrix: function () {\n\n\t\t\tvar dx = ( this.right - this.left ) / ( 2 * this.zoom );\n\t\t\tvar dy = ( this.top - this.bottom ) / ( 2 * this.zoom );\n\t\t\tvar cx = ( this.right + this.left ) / 2;\n\t\t\tvar cy = ( this.top + this.bottom ) / 2;\n\n\t\t\tvar left = cx - dx;\n\t\t\tvar right = cx + dx;\n\t\t\tvar top = cy + dy;\n\t\t\tvar bottom = cy - dy;\n\n\t\t\tif ( this.view !== null && this.view.enabled ) {\n\n\t\t\t\tvar zoomW = this.zoom / ( this.view.width / this.view.fullWidth );\n\t\t\t\tvar zoomH = this.zoom / ( this.view.height / this.view.fullHeight );\n\t\t\t\tvar scaleW = ( this.right - this.left ) / this.view.width;\n\t\t\t\tvar scaleH = ( this.top - this.bottom ) / this.view.height;\n\n\t\t\t\tleft += scaleW * ( this.view.offsetX / zoomW );\n\t\t\t\tright = left + scaleW * ( this.view.width / zoomW );\n\t\t\t\ttop -= scaleH * ( this.view.offsetY / zoomH );\n\t\t\t\tbottom = top - scaleH * ( this.view.height / zoomH );\n\n\t\t\t}\n\n\t\t\tthis.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.zoom = this.zoom;\n\t\t\tdata.object.left = this.left;\n\t\t\tdata.object.right = this.right;\n\t\t\tdata.object.top = this.top;\n\t\t\tdata.object.bottom = this.bottom;\n\t\t\tdata.object.near = this.near;\n\t\t\tdata.object.far = this.far;\n\n\t\t\tif ( this.view !== null ) data.object.view = Object.assign( {}, this.view );\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Face3( a, b, c, normal, color, materialIndex ) {\n\n\t\tthis.a = a;\n\t\tthis.b = b;\n\t\tthis.c = c;\n\n\t\tthis.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();\n\t\tthis.vertexNormals = Array.isArray( normal ) ? normal : [];\n\n\t\tthis.color = ( color && color.isColor ) ? color : new Color();\n\t\tthis.vertexColors = Array.isArray( color ) ? color : [];\n\n\t\tthis.materialIndex = materialIndex !== undefined ? materialIndex : 0;\n\n\t}\n\n\tObject.assign( Face3.prototype, {\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.a = source.a;\n\t\t\tthis.b = source.b;\n\t\t\tthis.c = source.c;\n\n\t\t\tthis.normal.copy( source.normal );\n\t\t\tthis.color.copy( source.color );\n\n\t\t\tthis.materialIndex = source.materialIndex;\n\n\t\t\tfor ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertexNormals[ i ] = source.vertexNormals[ i ].clone();\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertexColors[ i ] = source.vertexColors[ i ].clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author kile / http://kile.stravaganza.org/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author bhouston / http://clara.io\n\t */\n\n\tvar geometryId = 0; // Geometry uses even numbers as Id\n\n\tfunction Geometry() {\n\n\t\tObject.defineProperty( this, 'id', { value: geometryId += 2 } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Geometry';\n\n\t\tthis.vertices = [];\n\t\tthis.colors = [];\n\t\tthis.faces = [];\n\t\tthis.faceVertexUvs = [[]];\n\n\t\tthis.morphTargets = [];\n\t\tthis.morphNormals = [];\n\n\t\tthis.skinWeights = [];\n\t\tthis.skinIndices = [];\n\n\t\tthis.lineDistances = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\t// update flags\n\n\t\tthis.elementsNeedUpdate = false;\n\t\tthis.verticesNeedUpdate = false;\n\t\tthis.uvsNeedUpdate = false;\n\t\tthis.normalsNeedUpdate = false;\n\t\tthis.colorsNeedUpdate = false;\n\t\tthis.lineDistancesNeedUpdate = false;\n\t\tthis.groupsNeedUpdate = false;\n\n\t}\n\n\tGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Geometry,\n\n\t\tisGeometry: true,\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tvar normalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\tfor ( var i = 0, il = this.vertices.length; i < il; i ++ ) {\n\n\t\t\t\tvar vertex = this.vertices[ i ];\n\t\t\t\tvertex.applyMatrix4( matrix );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, il = this.faces.length; i < il; i ++ ) {\n\n\t\t\t\tvar face = this.faces[ i ];\n\t\t\t\tface.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\tfor ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\tface.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.boundingBox !== null ) {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tif ( this.boundingSphere !== null ) {\n\n\t\t\t\tthis.computeBoundingSphere();\n\n\t\t\t}\n\n\t\t\tthis.verticesNeedUpdate = true;\n\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateX: function () {\n\n\t\t\t// rotate geometry around world x-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\tm1.makeRotationX( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\t// rotate geometry around world y-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\tm1.makeRotationY( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\t// rotate geometry around world z-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\tm1.makeRotationZ( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function () {\n\n\t\t\t// translate geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function translate( x, y, z ) {\n\n\t\t\t\tm1.makeTranslation( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tscale: function () {\n\n\t\t\t// scale geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function scale( x, y, z ) {\n\n\t\t\t\tm1.makeScale( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar obj = new Object3D();\n\n\t\t\treturn function lookAt( vector ) {\n\n\t\t\t\tobj.lookAt( vector );\n\n\t\t\t\tobj.updateMatrix();\n\n\t\t\t\tthis.applyMatrix( obj.matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tfromBufferGeometry: function ( geometry ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar indices = geometry.index !== null ? geometry.index.array : undefined;\n\t\t\tvar attributes = geometry.attributes;\n\n\t\t\tvar positions = attributes.position.array;\n\t\t\tvar normals = attributes.normal !== undefined ? attributes.normal.array : undefined;\n\t\t\tvar colors = attributes.color !== undefined ? attributes.color.array : undefined;\n\t\t\tvar uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;\n\t\t\tvar uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;\n\n\t\t\tif ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];\n\n\t\t\tvar tempNormals = [];\n\t\t\tvar tempUVs = [];\n\t\t\tvar tempUVs2 = [];\n\n\t\t\tfor ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {\n\n\t\t\t\tscope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );\n\n\t\t\t\tif ( normals !== undefined ) {\n\n\t\t\t\t\ttempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( colors !== undefined ) {\n\n\t\t\t\t\tscope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs !== undefined ) {\n\n\t\t\t\t\ttempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs2 !== undefined ) {\n\n\t\t\t\t\ttempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction addFace( a, b, c, materialIndex ) {\n\n\t\t\t\tvar vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];\n\t\t\t\tvar vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];\n\n\t\t\t\tvar face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );\n\n\t\t\t\tscope.faces.push( face );\n\n\t\t\t\tif ( uvs !== undefined ) {\n\n\t\t\t\t\tscope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs2 !== undefined ) {\n\n\t\t\t\t\tscope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar groups = geometry.groups;\n\n\t\t\tif ( groups.length > 0 ) {\n\n\t\t\t\tfor ( var i = 0; i < groups.length; i ++ ) {\n\n\t\t\t\t\tvar group = groups[ i ];\n\n\t\t\t\t\tvar start = group.start;\n\t\t\t\t\tvar count = group.count;\n\n\t\t\t\t\tfor ( var j = start, jl = start + count; j < jl; j += 3 ) {\n\n\t\t\t\t\t\tif ( indices !== undefined ) {\n\n\t\t\t\t\t\t\taddFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\taddFace( j, j + 1, j + 2, group.materialIndex );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tif ( indices !== undefined ) {\n\n\t\t\t\t\tfor ( var i = 0; i < indices.length; i += 3 ) {\n\n\t\t\t\t\t\taddFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfor ( var i = 0; i < positions.length / 3; i += 3 ) {\n\n\t\t\t\t\t\taddFace( i, i + 1, i + 2 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.computeFaceNormals();\n\n\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t}\n\n\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcenter: function () {\n\n\t\t\tvar offset = new Vector3();\n\n\t\t\treturn function center() {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t\tthis.boundingBox.getCenter( offset ).negate();\n\n\t\t\t\tthis.translate( offset.x, offset.y, offset.z );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tnormalize: function () {\n\n\t\t\tthis.computeBoundingSphere();\n\n\t\t\tvar center = this.boundingSphere.center;\n\t\t\tvar radius = this.boundingSphere.radius;\n\n\t\t\tvar s = radius === 0 ? 1 : 1.0 / radius;\n\n\t\t\tvar matrix = new Matrix4();\n\t\t\tmatrix.set(\n\t\t\t\ts, 0, 0, - s * center.x,\n\t\t\t\t0, s, 0, - s * center.y,\n\t\t\t\t0, 0, s, - s * center.z,\n\t\t\t\t0, 0, 0, 1\n\t\t\t);\n\n\t\t\tthis.applyMatrix( matrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcomputeFaceNormals: function () {\n\n\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\tfor ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tvar face = this.faces[ f ];\n\n\t\t\t\tvar vA = this.vertices[ face.a ];\n\t\t\t\tvar vB = this.vertices[ face.b ];\n\t\t\t\tvar vC = this.vertices[ face.c ];\n\n\t\t\t\tcb.subVectors( vC, vB );\n\t\t\t\tab.subVectors( vA, vB );\n\t\t\t\tcb.cross( ab );\n\n\t\t\t\tcb.normalize();\n\n\t\t\t\tface.normal.copy( cb );\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeVertexNormals: function ( areaWeighted ) {\n\n\t\t\tif ( areaWeighted === undefined ) areaWeighted = true;\n\n\t\t\tvar v, vl, f, fl, face, vertices;\n\n\t\t\tvertices = new Array( this.vertices.length );\n\n\t\t\tfor ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {\n\n\t\t\t\tvertices[ v ] = new Vector3();\n\n\t\t\t}\n\n\t\t\tif ( areaWeighted ) {\n\n\t\t\t\t// vertex normals weighted by triangle areas\n\t\t\t\t// http://www.iquilezles.org/www/articles/normals/normals.htm\n\n\t\t\t\tvar vA, vB, vC;\n\t\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tvA = this.vertices[ face.a ];\n\t\t\t\t\tvB = this.vertices[ face.b ];\n\t\t\t\t\tvC = this.vertices[ face.c ];\n\n\t\t\t\t\tcb.subVectors( vC, vB );\n\t\t\t\t\tab.subVectors( vA, vB );\n\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\tvertices[ face.a ].add( cb );\n\t\t\t\t\tvertices[ face.b ].add( cb );\n\t\t\t\t\tvertices[ face.c ].add( cb );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tthis.computeFaceNormals();\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tvertices[ face.a ].add( face.normal );\n\t\t\t\t\tvertices[ face.b ].add( face.normal );\n\t\t\t\t\tvertices[ face.c ].add( face.normal );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {\n\n\t\t\t\tvertices[ v ].normalize();\n\n\t\t\t}\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tvertexNormals[ 0 ].copy( vertices[ face.a ] );\n\t\t\t\t\tvertexNormals[ 1 ].copy( vertices[ face.b ] );\n\t\t\t\t\tvertexNormals[ 2 ].copy( vertices[ face.c ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvertexNormals[ 0 ] = vertices[ face.a ].clone();\n\t\t\t\t\tvertexNormals[ 1 ] = vertices[ face.b ].clone();\n\t\t\t\t\tvertexNormals[ 2 ] = vertices[ face.c ].clone();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.faces.length > 0 ) {\n\n\t\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeFlatVertexNormals: function () {\n\n\t\t\tvar f, fl, face;\n\n\t\t\tthis.computeFaceNormals();\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tvertexNormals[ 0 ].copy( face.normal );\n\t\t\t\t\tvertexNormals[ 1 ].copy( face.normal );\n\t\t\t\t\tvertexNormals[ 2 ].copy( face.normal );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvertexNormals[ 0 ] = face.normal.clone();\n\t\t\t\t\tvertexNormals[ 1 ] = face.normal.clone();\n\t\t\t\t\tvertexNormals[ 2 ] = face.normal.clone();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.faces.length > 0 ) {\n\n\t\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeMorphNormals: function () {\n\n\t\t\tvar i, il, f, fl, face;\n\n\t\t\t// save original normals\n\t\t\t// - create temp variables on first access\n\t\t\t// otherwise just copy (for faster repeated calls)\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tif ( ! face.__originalFaceNormal ) {\n\n\t\t\t\t\tface.__originalFaceNormal = face.normal.clone();\n\n\t\t\t\t} else {\n\n\t\t\t\t\tface.__originalFaceNormal.copy( face.normal );\n\n\t\t\t\t}\n\n\t\t\t\tif ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];\n\n\t\t\t\tfor ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {\n\n\t\t\t\t\tif ( ! face.__originalVertexNormals[ i ] ) {\n\n\t\t\t\t\t\tface.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tface.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// use temp geometry to compute face and vertex normals for each morph\n\n\t\t\tvar tmpGeo = new Geometry();\n\t\t\ttmpGeo.faces = this.faces;\n\n\t\t\tfor ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\t// create on first access\n\n\t\t\t\tif ( ! this.morphNormals[ i ] ) {\n\n\t\t\t\t\tthis.morphNormals[ i ] = {};\n\t\t\t\t\tthis.morphNormals[ i ].faceNormals = [];\n\t\t\t\t\tthis.morphNormals[ i ].vertexNormals = [];\n\n\t\t\t\t\tvar dstNormalsFace = this.morphNormals[ i ].faceNormals;\n\t\t\t\t\tvar dstNormalsVertex = this.morphNormals[ i ].vertexNormals;\n\n\t\t\t\t\tvar faceNormal, vertexNormals;\n\n\t\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\t\tfaceNormal = new Vector3();\n\t\t\t\t\t\tvertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };\n\n\t\t\t\t\t\tdstNormalsFace.push( faceNormal );\n\t\t\t\t\t\tdstNormalsVertex.push( vertexNormals );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar morphNormals = this.morphNormals[ i ];\n\n\t\t\t\t// set vertices to morph target\n\n\t\t\t\ttmpGeo.vertices = this.morphTargets[ i ].vertices;\n\n\t\t\t\t// compute morph normals\n\n\t\t\t\ttmpGeo.computeFaceNormals();\n\t\t\t\ttmpGeo.computeVertexNormals();\n\n\t\t\t\t// store morph normals\n\n\t\t\t\tvar faceNormal, vertexNormals;\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tfaceNormal = morphNormals.faceNormals[ f ];\n\t\t\t\t\tvertexNormals = morphNormals.vertexNormals[ f ];\n\n\t\t\t\t\tfaceNormal.copy( face.normal );\n\n\t\t\t\t\tvertexNormals.a.copy( face.vertexNormals[ 0 ] );\n\t\t\t\t\tvertexNormals.b.copy( face.vertexNormals[ 1 ] );\n\t\t\t\t\tvertexNormals.c.copy( face.vertexNormals[ 2 ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// restore original normals\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tface.normal = face.__originalFaceNormal;\n\t\t\t\tface.vertexNormals = face.__originalVertexNormals;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeBoundingBox: function () {\n\n\t\t\tif ( this.boundingBox === null ) {\n\n\t\t\t\tthis.boundingBox = new Box3();\n\n\t\t\t}\n\n\t\t\tthis.boundingBox.setFromPoints( this.vertices );\n\n\t\t},\n\n\t\tcomputeBoundingSphere: function () {\n\n\t\t\tif ( this.boundingSphere === null ) {\n\n\t\t\t\tthis.boundingSphere = new Sphere();\n\n\t\t\t}\n\n\t\t\tthis.boundingSphere.setFromPoints( this.vertices );\n\n\t\t},\n\n\t\tmerge: function ( geometry, matrix, materialIndexOffset ) {\n\n\t\t\tif ( ! ( geometry && geometry.isGeometry ) ) {\n\n\t\t\t\tconsole.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar normalMatrix,\n\t\t\t\tvertexOffset = this.vertices.length,\n\t\t\t\tvertices1 = this.vertices,\n\t\t\t\tvertices2 = geometry.vertices,\n\t\t\t\tfaces1 = this.faces,\n\t\t\t\tfaces2 = geometry.faces,\n\t\t\t\tuvs1 = this.faceVertexUvs[ 0 ],\n\t\t\t\tuvs2 = geometry.faceVertexUvs[ 0 ],\n\t\t\t\tcolors1 = this.colors,\n\t\t\t\tcolors2 = geometry.colors;\n\n\t\t\tif ( materialIndexOffset === undefined ) materialIndexOffset = 0;\n\n\t\t\tif ( matrix !== undefined ) {\n\n\t\t\t\tnormalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\t}\n\n\t\t\t// vertices\n\n\t\t\tfor ( var i = 0, il = vertices2.length; i < il; i ++ ) {\n\n\t\t\t\tvar vertex = vertices2[ i ];\n\n\t\t\t\tvar vertexCopy = vertex.clone();\n\n\t\t\t\tif ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );\n\n\t\t\t\tvertices1.push( vertexCopy );\n\n\t\t\t}\n\n\t\t\t// colors\n\n\t\t\tfor ( var i = 0, il = colors2.length; i < il; i ++ ) {\n\n\t\t\t\tcolors1.push( colors2[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// faces\n\n\t\t\tfor ( i = 0, il = faces2.length; i < il; i ++ ) {\n\n\t\t\t\tvar face = faces2[ i ], faceCopy, normal, color,\n\t\t\t\t\tfaceVertexNormals = face.vertexNormals,\n\t\t\t\t\tfaceVertexColors = face.vertexColors;\n\n\t\t\t\tfaceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );\n\t\t\t\tfaceCopy.normal.copy( face.normal );\n\n\t\t\t\tif ( normalMatrix !== undefined ) {\n\n\t\t\t\t\tfaceCopy.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\tnormal = faceVertexNormals[ j ].clone();\n\n\t\t\t\t\tif ( normalMatrix !== undefined ) {\n\n\t\t\t\t\t\tnormal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfaceCopy.vertexNormals.push( normal );\n\n\t\t\t\t}\n\n\t\t\t\tfaceCopy.color.copy( face.color );\n\n\t\t\t\tfor ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {\n\n\t\t\t\t\tcolor = faceVertexColors[ j ];\n\t\t\t\t\tfaceCopy.vertexColors.push( color.clone() );\n\n\t\t\t\t}\n\n\t\t\t\tfaceCopy.materialIndex = face.materialIndex + materialIndexOffset;\n\n\t\t\t\tfaces1.push( faceCopy );\n\n\t\t\t}\n\n\t\t\t// uvs\n\n\t\t\tfor ( i = 0, il = uvs2.length; i < il; i ++ ) {\n\n\t\t\t\tvar uv = uvs2[ i ], uvCopy = [];\n\n\t\t\t\tif ( uv === undefined ) {\n\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0, jl = uv.length; j < jl; j ++ ) {\n\n\t\t\t\t\tuvCopy.push( uv[ j ].clone() );\n\n\t\t\t\t}\n\n\t\t\t\tuvs1.push( uvCopy );\n\n\t\t\t}\n\n\t\t},\n\n\t\tmergeMesh: function ( mesh ) {\n\n\t\t\tif ( ! ( mesh && mesh.isMesh ) ) {\n\n\t\t\t\tconsole.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( mesh.matrixAutoUpdate ) mesh.updateMatrix();\n\n\t\t\tthis.merge( mesh.geometry, mesh.matrix );\n\n\t\t},\n\n\t\t/*\n\t\t * Checks for duplicate vertices with hashmap.\n\t\t * Duplicated vertices are removed\n\t\t * and faces' vertices are updated.\n\t\t */\n\n\t\tmergeVertices: function () {\n\n\t\t\tvar verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)\n\t\t\tvar unique = [], changes = [];\n\n\t\t\tvar v, key;\n\t\t\tvar precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001\n\t\t\tvar precision = Math.pow( 10, precisionPoints );\n\t\t\tvar i, il, face;\n\t\t\tvar indices, j, jl;\n\n\t\t\tfor ( i = 0, il = this.vertices.length; i < il; i ++ ) {\n\n\t\t\t\tv = this.vertices[ i ];\n\t\t\t\tkey = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );\n\n\t\t\t\tif ( verticesMap[ key ] === undefined ) {\n\n\t\t\t\t\tverticesMap[ key ] = i;\n\t\t\t\t\tunique.push( this.vertices[ i ] );\n\t\t\t\t\tchanges[ i ] = unique.length - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\t//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);\n\t\t\t\t\tchanges[ i ] = changes[ verticesMap[ key ] ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\t// if faces are completely degenerate after merging vertices, we\n\t\t\t// have to remove them from the geometry.\n\t\t\tvar faceIndicesToRemove = [];\n\n\t\t\tfor ( i = 0, il = this.faces.length; i < il; i ++ ) {\n\n\t\t\t\tface = this.faces[ i ];\n\n\t\t\t\tface.a = changes[ face.a ];\n\t\t\t\tface.b = changes[ face.b ];\n\t\t\t\tface.c = changes[ face.c ];\n\n\t\t\t\tindices = [ face.a, face.b, face.c ];\n\n\t\t\t\t// if any duplicate vertices are found in a Face3\n\t\t\t\t// we have to remove the face as nothing can be saved\n\t\t\t\tfor ( var n = 0; n < 3; n ++ ) {\n\n\t\t\t\t\tif ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {\n\n\t\t\t\t\t\tfaceIndicesToRemove.push( i );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {\n\n\t\t\t\tvar idx = faceIndicesToRemove[ i ];\n\n\t\t\t\tthis.faces.splice( idx, 1 );\n\n\t\t\t\tfor ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {\n\n\t\t\t\t\tthis.faceVertexUvs[ j ].splice( idx, 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Use unique set of vertices\n\n\t\t\tvar diff = this.vertices.length - unique.length;\n\t\t\tthis.vertices = unique;\n\t\t\treturn diff;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.vertices = [];\n\n\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tvar point = points[ i ];\n\t\t\t\tthis.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsortFacesByMaterialIndex: function () {\n\n\t\t\tvar faces = this.faces;\n\t\t\tvar length = faces.length;\n\n\t\t\t// tag faces\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tfaces[ i ]._id = i;\n\n\t\t\t}\n\n\t\t\t// sort faces\n\n\t\t\tfunction materialIndexSort( a, b ) {\n\n\t\t\t\treturn a.materialIndex - b.materialIndex;\n\n\t\t\t}\n\n\t\t\tfaces.sort( materialIndexSort );\n\n\t\t\t// sort uvs\n\n\t\t\tvar uvs1 = this.faceVertexUvs[ 0 ];\n\t\t\tvar uvs2 = this.faceVertexUvs[ 1 ];\n\n\t\t\tvar newUvs1, newUvs2;\n\n\t\t\tif ( uvs1 && uvs1.length === length ) newUvs1 = [];\n\t\t\tif ( uvs2 && uvs2.length === length ) newUvs2 = [];\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tvar id = faces[ i ]._id;\n\n\t\t\t\tif ( newUvs1 ) newUvs1.push( uvs1[ id ] );\n\t\t\t\tif ( newUvs2 ) newUvs2.push( uvs2[ id ] );\n\n\t\t\t}\n\n\t\t\tif ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;\n\t\t\tif ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Geometry',\n\t\t\t\t\tgenerator: 'Geometry.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard Geometry serialization\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\n\t\t\tif ( this.parameters !== undefined ) {\n\n\t\t\t\tvar parameters = this.parameters;\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tif ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];\n\n\t\t\t\t}\n\n\t\t\t\treturn data;\n\n\t\t\t}\n\n\t\t\tvar vertices = [];\n\n\t\t\tfor ( var i = 0; i < this.vertices.length; i ++ ) {\n\n\t\t\t\tvar vertex = this.vertices[ i ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t\tvar faces = [];\n\t\t\tvar normals = [];\n\t\t\tvar normalsHash = {};\n\t\t\tvar colors = [];\n\t\t\tvar colorsHash = {};\n\t\t\tvar uvs = [];\n\t\t\tvar uvsHash = {};\n\n\t\t\tfor ( var i = 0; i < this.faces.length; i ++ ) {\n\n\t\t\t\tvar face = this.faces[ i ];\n\n\t\t\t\tvar hasMaterial = true;\n\t\t\t\tvar hasFaceUv = false; // deprecated\n\t\t\t\tvar hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;\n\t\t\t\tvar hasFaceNormal = face.normal.length() > 0;\n\t\t\t\tvar hasFaceVertexNormal = face.vertexNormals.length > 0;\n\t\t\t\tvar hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;\n\t\t\t\tvar hasFaceVertexColor = face.vertexColors.length > 0;\n\n\t\t\t\tvar faceType = 0;\n\n\t\t\t\tfaceType = setBit( faceType, 0, 0 ); // isQuad\n\t\t\t\tfaceType = setBit( faceType, 1, hasMaterial );\n\t\t\t\tfaceType = setBit( faceType, 2, hasFaceUv );\n\t\t\t\tfaceType = setBit( faceType, 3, hasFaceVertexUv );\n\t\t\t\tfaceType = setBit( faceType, 4, hasFaceNormal );\n\t\t\t\tfaceType = setBit( faceType, 5, hasFaceVertexNormal );\n\t\t\t\tfaceType = setBit( faceType, 6, hasFaceColor );\n\t\t\t\tfaceType = setBit( faceType, 7, hasFaceVertexColor );\n\n\t\t\t\tfaces.push( faceType );\n\t\t\t\tfaces.push( face.a, face.b, face.c );\n\t\t\t\tfaces.push( face.materialIndex );\n\n\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\tvar faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 0 ] ),\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 1 ] ),\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\tfaces.push( getNormalIndex( face.normal ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 0 ] ),\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 1 ] ),\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\tfaces.push( getColorIndex( face.color ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\tvar vertexColors = face.vertexColors;\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 0 ] ),\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 1 ] ),\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction setBit( value, position, enabled ) {\n\n\t\t\t\treturn enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );\n\n\t\t\t}\n\n\t\t\tfunction getNormalIndex( normal ) {\n\n\t\t\t\tvar hash = normal.x.toString() + normal.y.toString() + normal.z.toString();\n\n\t\t\t\tif ( normalsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn normalsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tnormalsHash[ hash ] = normals.length / 3;\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\treturn normalsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tfunction getColorIndex( color ) {\n\n\t\t\t\tvar hash = color.r.toString() + color.g.toString() + color.b.toString();\n\n\t\t\t\tif ( colorsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn colorsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tcolorsHash[ hash ] = colors.length;\n\t\t\t\tcolors.push( color.getHex() );\n\n\t\t\t\treturn colorsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tfunction getUvIndex( uv ) {\n\n\t\t\t\tvar hash = uv.x.toString() + uv.y.toString();\n\n\t\t\t\tif ( uvsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn uvsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tuvsHash[ hash ] = uvs.length / 2;\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\treturn uvsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tdata.data = {};\n\n\t\t\tdata.data.vertices = vertices;\n\t\t\tdata.data.normals = normals;\n\t\t\tif ( colors.length > 0 ) data.data.colors = colors;\n\t\t\tif ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility\n\t\t\tdata.data.faces = faces;\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\t/*\n\t\t\t // Handle primitives\n\n\t\t\t var parameters = this.parameters;\n\n\t\t\t if ( parameters !== undefined ) {\n\n\t\t\t var values = [];\n\n\t\t\t for ( var key in parameters ) {\n\n\t\t\t values.push( parameters[ key ] );\n\n\t\t\t }\n\n\t\t\t var geometry = Object.create( this.constructor.prototype );\n\t\t\t this.constructor.apply( geometry, values );\n\t\t\t return geometry;\n\n\t\t\t }\n\n\t\t\t return new this.constructor().copy( this );\n\t\t\t */\n\n\t\t\treturn new Geometry().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tvar i, il, j, jl, k, kl;\n\n\t\t\t// reset\n\n\t\t\tthis.vertices = [];\n\t\t\tthis.colors = [];\n\t\t\tthis.faces = [];\n\t\t\tthis.faceVertexUvs = [[]];\n\t\t\tthis.morphTargets = [];\n\t\t\tthis.morphNormals = [];\n\t\t\tthis.skinWeights = [];\n\t\t\tthis.skinIndices = [];\n\t\t\tthis.lineDistances = [];\n\t\t\tthis.boundingBox = null;\n\t\t\tthis.boundingSphere = null;\n\n\t\t\t// name\n\n\t\t\tthis.name = source.name;\n\n\t\t\t// vertices\n\n\t\t\tvar vertices = source.vertices;\n\n\t\t\tfor ( i = 0, il = vertices.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertices.push( vertices[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// colors\n\n\t\t\tvar colors = source.colors;\n\n\t\t\tfor ( i = 0, il = colors.length; i < il; i ++ ) {\n\n\t\t\t\tthis.colors.push( colors[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// faces\n\n\t\t\tvar faces = source.faces;\n\n\t\t\tfor ( i = 0, il = faces.length; i < il; i ++ ) {\n\n\t\t\t\tthis.faces.push( faces[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// face vertex uvs\n\n\t\t\tfor ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {\n\n\t\t\t\tvar faceVertexUvs = source.faceVertexUvs[ i ];\n\n\t\t\t\tif ( this.faceVertexUvs[ i ] === undefined ) {\n\n\t\t\t\t\tthis.faceVertexUvs[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tfor ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {\n\n\t\t\t\t\tvar uvs = faceVertexUvs[ j ], uvsCopy = [];\n\n\t\t\t\t\tfor ( k = 0, kl = uvs.length; k < kl; k ++ ) {\n\n\t\t\t\t\t\tvar uv = uvs[ k ];\n\n\t\t\t\t\t\tuvsCopy.push( uv.clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.faceVertexUvs[ i ].push( uvsCopy );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// morph targets\n\n\t\t\tvar morphTargets = source.morphTargets;\n\n\t\t\tfor ( i = 0, il = morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\tvar morphTarget = {};\n\t\t\t\tmorphTarget.name = morphTargets[ i ].name;\n\n\t\t\t\t// vertices\n\n\t\t\t\tif ( morphTargets[ i ].vertices !== undefined ) {\n\n\t\t\t\t\tmorphTarget.vertices = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tmorphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// normals\n\n\t\t\t\tif ( morphTargets[ i ].normals !== undefined ) {\n\n\t\t\t\t\tmorphTarget.normals = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tmorphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.push( morphTarget );\n\n\t\t\t}\n\n\t\t\t// morph normals\n\n\t\t\tvar morphNormals = source.morphNormals;\n\n\t\t\tfor ( i = 0, il = morphNormals.length; i < il; i ++ ) {\n\n\t\t\t\tvar morphNormal = {};\n\n\t\t\t\t// vertex normals\n\n\t\t\t\tif ( morphNormals[ i ].vertexNormals !== undefined ) {\n\n\t\t\t\t\tmorphNormal.vertexNormals = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];\n\t\t\t\t\t\tvar destVertexNormal = {};\n\n\t\t\t\t\t\tdestVertexNormal.a = srcVertexNormal.a.clone();\n\t\t\t\t\t\tdestVertexNormal.b = srcVertexNormal.b.clone();\n\t\t\t\t\t\tdestVertexNormal.c = srcVertexNormal.c.clone();\n\n\t\t\t\t\t\tmorphNormal.vertexNormals.push( destVertexNormal );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// face normals\n\n\t\t\t\tif ( morphNormals[ i ].faceNormals !== undefined ) {\n\n\t\t\t\t\tmorphNormal.faceNormals = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tmorphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphNormals.push( morphNormal );\n\n\t\t\t}\n\n\t\t\t// skin weights\n\n\t\t\tvar skinWeights = source.skinWeights;\n\n\t\t\tfor ( i = 0, il = skinWeights.length; i < il; i ++ ) {\n\n\t\t\t\tthis.skinWeights.push( skinWeights[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// skin indices\n\n\t\t\tvar skinIndices = source.skinIndices;\n\n\t\t\tfor ( i = 0, il = skinIndices.length; i < il; i ++ ) {\n\n\t\t\t\tthis.skinIndices.push( skinIndices[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// line distances\n\n\t\t\tvar lineDistances = source.lineDistances;\n\n\t\t\tfor ( i = 0, il = lineDistances.length; i < il; i ++ ) {\n\n\t\t\t\tthis.lineDistances.push( lineDistances[ i ] );\n\n\t\t\t}\n\n\t\t\t// bounding box\n\n\t\t\tvar boundingBox = source.boundingBox;\n\n\t\t\tif ( boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = boundingBox.clone();\n\n\t\t\t}\n\n\t\t\t// bounding sphere\n\n\t\t\tvar boundingSphere = source.boundingSphere;\n\n\t\t\tif ( boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\t// update flags\n\n\t\t\tthis.elementsNeedUpdate = source.elementsNeedUpdate;\n\t\t\tthis.verticesNeedUpdate = source.verticesNeedUpdate;\n\t\t\tthis.uvsNeedUpdate = source.uvsNeedUpdate;\n\t\t\tthis.normalsNeedUpdate = source.normalsNeedUpdate;\n\t\t\tthis.colorsNeedUpdate = source.colorsNeedUpdate;\n\t\t\tthis.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;\n\t\t\tthis.groupsNeedUpdate = source.groupsNeedUpdate;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BufferAttribute( array, itemSize, normalized ) {\n\n\t\tif ( Array.isArray( array ) ) {\n\n\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t}\n\n\t\tthis.name = '';\n\n\t\tthis.array = array;\n\t\tthis.itemSize = itemSize;\n\t\tthis.count = array !== undefined ? array.length / itemSize : 0;\n\t\tthis.normalized = normalized === true;\n\n\t\tthis.dynamic = false;\n\t\tthis.updateRange = { offset: 0, count: - 1 };\n\n\t\tthis.version = 0;\n\n\t}\n\n\tObject.defineProperty( BufferAttribute.prototype, 'needsUpdate', {\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( BufferAttribute.prototype, {\n\n\t\tisBufferAttribute: true,\n\n\t\tonUploadCallback: function () {},\n\n\t\tsetArray: function ( array ) {\n\n\t\t\tif ( Array.isArray( array ) ) {\n\n\t\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t\t}\n\n\t\t\tthis.count = array !== undefined ? array.length / this.itemSize : 0;\n\t\t\tthis.array = array;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetDynamic: function ( value ) {\n\n\t\t\tthis.dynamic = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.name = source.name;\n\t\t\tthis.array = new source.array.constructor( source.array );\n\t\t\tthis.itemSize = source.itemSize;\n\t\t\tthis.count = source.count;\n\t\t\tthis.normalized = source.normalized;\n\n\t\t\tthis.dynamic = source.dynamic;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyAt: function ( index1, attribute, index2 ) {\n\n\t\t\tindex1 *= this.itemSize;\n\t\t\tindex2 *= attribute.itemSize;\n\n\t\t\tfor ( var i = 0, l = this.itemSize; i < l; i ++ ) {\n\n\t\t\t\tthis.array[ index1 + i ] = attribute.array[ index2 + i ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyArray: function ( array ) {\n\n\t\t\tthis.array.set( array );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyColorsArray: function ( colors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = colors.length; i < l; i ++ ) {\n\n\t\t\t\tvar color = colors[ i ];\n\n\t\t\t\tif ( color === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );\n\t\t\t\t\tcolor = new Color();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = color.r;\n\t\t\t\tarray[ offset ++ ] = color.g;\n\t\t\t\tarray[ offset ++ ] = color.b;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector2sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector2();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector3sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\t\t\t\tarray[ offset ++ ] = vector.z;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector4sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector4();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\t\t\t\tarray[ offset ++ ] = vector.z;\n\t\t\t\tarray[ offset ++ ] = vector.w;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tset: function ( value, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.array.set( value, offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetX: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize ];\n\n\t\t},\n\n\t\tsetX: function ( index, x ) {\n\n\t\t\tthis.array[ index * this.itemSize ] = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetY: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 1 ];\n\n\t\t},\n\n\t\tsetY: function ( index, y ) {\n\n\t\t\tthis.array[ index * this.itemSize + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetZ: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 2 ];\n\n\t\t},\n\n\t\tsetZ: function ( index, z ) {\n\n\t\t\tthis.array[ index * this.itemSize + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetW: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 3 ];\n\n\t\t},\n\n\t\tsetW: function ( index, w ) {\n\n\t\t\tthis.array[ index * this.itemSize + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXY: function ( index, x, y ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZ: function ( index, x, y, z ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\t\t\tthis.array[ index + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZW: function ( index, x, y, z, w ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\t\t\tthis.array[ index + 2 ] = z;\n\t\t\tthis.array[ index + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonUpload: function ( callback ) {\n\n\t\t\tthis.onUploadCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.array, this.itemSize ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tfunction Int8BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );\n\n\t}\n\n\tInt8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tInt8BufferAttribute.prototype.constructor = Int8BufferAttribute;\n\n\n\tfunction Uint8BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );\n\n\t}\n\n\tUint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;\n\n\n\tfunction Uint8ClampedBufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );\n\n\t}\n\n\tUint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;\n\n\n\tfunction Int16BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );\n\n\t}\n\n\tInt16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tInt16BufferAttribute.prototype.constructor = Int16BufferAttribute;\n\n\n\tfunction Uint16BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );\n\n\t}\n\n\tUint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;\n\n\n\tfunction Int32BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );\n\n\t}\n\n\tInt32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tInt32BufferAttribute.prototype.constructor = Int32BufferAttribute;\n\n\n\tfunction Uint32BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );\n\n\t}\n\n\tUint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;\n\n\n\tfunction Float32BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );\n\n\t}\n\n\tFloat32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tFloat32BufferAttribute.prototype.constructor = Float32BufferAttribute;\n\n\n\tfunction Float64BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );\n\n\t}\n\n\tFloat64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tFloat64BufferAttribute.prototype.constructor = Float64BufferAttribute;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction DirectGeometry() {\n\n\t\tthis.vertices = [];\n\t\tthis.normals = [];\n\t\tthis.colors = [];\n\t\tthis.uvs = [];\n\t\tthis.uvs2 = [];\n\n\t\tthis.groups = [];\n\n\t\tthis.morphTargets = {};\n\n\t\tthis.skinWeights = [];\n\t\tthis.skinIndices = [];\n\n\t\t// this.lineDistances = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\t// update flags\n\n\t\tthis.verticesNeedUpdate = false;\n\t\tthis.normalsNeedUpdate = false;\n\t\tthis.colorsNeedUpdate = false;\n\t\tthis.uvsNeedUpdate = false;\n\t\tthis.groupsNeedUpdate = false;\n\n\t}\n\n\tObject.assign( DirectGeometry.prototype, {\n\n\t\tcomputeGroups: function ( geometry ) {\n\n\t\t\tvar group;\n\t\t\tvar groups = [];\n\t\t\tvar materialIndex = undefined;\n\n\t\t\tvar faces = geometry.faces;\n\n\t\t\tfor ( var i = 0; i < faces.length; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\t// materials\n\n\t\t\t\tif ( face.materialIndex !== materialIndex ) {\n\n\t\t\t\t\tmaterialIndex = face.materialIndex;\n\n\t\t\t\t\tif ( group !== undefined ) {\n\n\t\t\t\t\t\tgroup.count = ( i * 3 ) - group.start;\n\t\t\t\t\t\tgroups.push( group );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tgroup = {\n\t\t\t\t\t\tstart: i * 3,\n\t\t\t\t\t\tmaterialIndex: materialIndex\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( group !== undefined ) {\n\n\t\t\t\tgroup.count = ( i * 3 ) - group.start;\n\t\t\t\tgroups.push( group );\n\n\t\t\t}\n\n\t\t\tthis.groups = groups;\n\n\t\t},\n\n\t\tfromGeometry: function ( geometry ) {\n\n\t\t\tvar faces = geometry.faces;\n\t\t\tvar vertices = geometry.vertices;\n\t\t\tvar faceVertexUvs = geometry.faceVertexUvs;\n\n\t\t\tvar hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;\n\t\t\tvar hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;\n\n\t\t\t// morphs\n\n\t\t\tvar morphTargets = geometry.morphTargets;\n\t\t\tvar morphTargetsLength = morphTargets.length;\n\n\t\t\tvar morphTargetsPosition;\n\n\t\t\tif ( morphTargetsLength > 0 ) {\n\n\t\t\t\tmorphTargetsPosition = [];\n\n\t\t\t\tfor ( var i = 0; i < morphTargetsLength; i ++ ) {\n\n\t\t\t\t\tmorphTargetsPosition[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.position = morphTargetsPosition;\n\n\t\t\t}\n\n\t\t\tvar morphNormals = geometry.morphNormals;\n\t\t\tvar morphNormalsLength = morphNormals.length;\n\n\t\t\tvar morphTargetsNormal;\n\n\t\t\tif ( morphNormalsLength > 0 ) {\n\n\t\t\t\tmorphTargetsNormal = [];\n\n\t\t\t\tfor ( var i = 0; i < morphNormalsLength; i ++ ) {\n\n\t\t\t\t\tmorphTargetsNormal[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.normal = morphTargetsNormal;\n\n\t\t\t}\n\n\t\t\t// skins\n\n\t\t\tvar skinIndices = geometry.skinIndices;\n\t\t\tvar skinWeights = geometry.skinWeights;\n\n\t\t\tvar hasSkinIndices = skinIndices.length === vertices.length;\n\t\t\tvar hasSkinWeights = skinWeights.length === vertices.length;\n\n\t\t\t//\n\n\t\t\tif ( vertices.length > 0 && faces.length === 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.DirectGeometry: Faceless geometries are not supported.' );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < faces.length; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tthis.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tthis.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar normal = face.normal;\n\n\t\t\t\t\tthis.normals.push( normal, normal, normal );\n\n\t\t\t\t}\n\n\t\t\t\tvar vertexColors = face.vertexColors;\n\n\t\t\t\tif ( vertexColors.length === 3 ) {\n\n\t\t\t\t\tthis.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar color = face.color;\n\n\t\t\t\t\tthis.colors.push( color, color, color );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexUv === true ) {\n\n\t\t\t\t\tvar vertexUvs = faceVertexUvs[ 0 ][ i ];\n\n\t\t\t\t\tif ( vertexUvs !== undefined ) {\n\n\t\t\t\t\t\tthis.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );\n\n\t\t\t\t\t\tthis.uvs.push( new Vector2(), new Vector2(), new Vector2() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexUv2 === true ) {\n\n\t\t\t\t\tvar vertexUvs = faceVertexUvs[ 1 ][ i ];\n\n\t\t\t\t\tif ( vertexUvs !== undefined ) {\n\n\t\t\t\t\t\tthis.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );\n\n\t\t\t\t\t\tthis.uvs2.push( new Vector2(), new Vector2(), new Vector2() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// morphs\n\n\t\t\t\tfor ( var j = 0; j < morphTargetsLength; j ++ ) {\n\n\t\t\t\t\tvar morphTarget = morphTargets[ j ].vertices;\n\n\t\t\t\t\tmorphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0; j < morphNormalsLength; j ++ ) {\n\n\t\t\t\t\tvar morphNormal = morphNormals[ j ].vertexNormals[ i ];\n\n\t\t\t\t\tmorphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );\n\n\t\t\t\t}\n\n\t\t\t\t// skins\n\n\t\t\t\tif ( hasSkinIndices ) {\n\n\t\t\t\t\tthis.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasSkinWeights ) {\n\n\t\t\t\t\tthis.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.computeGroups( geometry );\n\n\t\t\tthis.verticesNeedUpdate = geometry.verticesNeedUpdate;\n\t\t\tthis.normalsNeedUpdate = geometry.normalsNeedUpdate;\n\t\t\tthis.colorsNeedUpdate = geometry.colorsNeedUpdate;\n\t\t\tthis.uvsNeedUpdate = geometry.uvsNeedUpdate;\n\t\t\tthis.groupsNeedUpdate = geometry.groupsNeedUpdate;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction arrayMax( array ) {\n\n\t\tif ( array.length === 0 ) return - Infinity;\n\n\t\tvar max = array[ 0 ];\n\n\t\tfor ( var i = 1, l = array.length; i < l; ++ i ) {\n\n\t\t\tif ( array[ i ] > max ) max = array[ i ];\n\n\t\t}\n\n\t\treturn max;\n\n\t}\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id\n\n\tfunction BufferGeometry() {\n\n\t\tObject.defineProperty( this, 'id', { value: bufferGeometryId += 2 } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'BufferGeometry';\n\n\t\tthis.index = null;\n\t\tthis.attributes = {};\n\n\t\tthis.morphAttributes = {};\n\n\t\tthis.groups = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\tthis.drawRange = { start: 0, count: Infinity };\n\n\t\tthis.userData = {};\n\n\t}\n\n\tBufferGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: BufferGeometry,\n\n\t\tisBufferGeometry: true,\n\n\t\tgetIndex: function () {\n\n\t\t\treturn this.index;\n\n\t\t},\n\n\t\tsetIndex: function ( index ) {\n\n\t\t\tif ( Array.isArray( index ) ) {\n\n\t\t\t\tthis.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );\n\n\t\t\t} else {\n\n\t\t\t\tthis.index = index;\n\n\t\t\t}\n\n\t\t},\n\n\t\taddAttribute: function ( name, attribute ) {\n\n\t\t\tif ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );\n\n\t\t\t\treturn this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );\n\n\t\t\t}\n\n\t\t\tif ( name === 'index' ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );\n\t\t\t\tthis.setIndex( attribute );\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tthis.attributes[ name ] = attribute;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetAttribute: function ( name ) {\n\n\t\t\treturn this.attributes[ name ];\n\n\t\t},\n\n\t\tremoveAttribute: function ( name ) {\n\n\t\t\tdelete this.attributes[ name ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddGroup: function ( start, count, materialIndex ) {\n\n\t\t\tthis.groups.push( {\n\n\t\t\t\tstart: start,\n\t\t\t\tcount: count,\n\t\t\t\tmaterialIndex: materialIndex !== undefined ? materialIndex : 0\n\n\t\t\t} );\n\n\t\t},\n\n\t\tclearGroups: function () {\n\n\t\t\tthis.groups = [];\n\n\t\t},\n\n\t\tsetDrawRange: function ( start, count ) {\n\n\t\t\tthis.drawRange.start = start;\n\t\t\tthis.drawRange.count = count;\n\n\t\t},\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tvar position = this.attributes.position;\n\n\t\t\tif ( position !== undefined ) {\n\n\t\t\t\tmatrix.applyToBufferAttribute( position );\n\t\t\t\tposition.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tvar normal = this.attributes.normal;\n\n\t\t\tif ( normal !== undefined ) {\n\n\t\t\t\tvar normalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\t\tnormalMatrix.applyToBufferAttribute( normal );\n\t\t\t\tnormal.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tif ( this.boundingBox !== null ) {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tif ( this.boundingSphere !== null ) {\n\n\t\t\t\tthis.computeBoundingSphere();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateX: function () {\n\n\t\t\t// rotate geometry around world x-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\tm1.makeRotationX( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\t// rotate geometry around world y-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\tm1.makeRotationY( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\t// rotate geometry around world z-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\tm1.makeRotationZ( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function () {\n\n\t\t\t// translate geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function translate( x, y, z ) {\n\n\t\t\t\tm1.makeTranslation( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tscale: function () {\n\n\t\t\t// scale geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function scale( x, y, z ) {\n\n\t\t\t\tm1.makeScale( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar obj = new Object3D();\n\n\t\t\treturn function lookAt( vector ) {\n\n\t\t\t\tobj.lookAt( vector );\n\n\t\t\t\tobj.updateMatrix();\n\n\t\t\t\tthis.applyMatrix( obj.matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcenter: function () {\n\n\t\t\tvar offset = new Vector3();\n\n\t\t\treturn function center() {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t\tthis.boundingBox.getCenter( offset ).negate();\n\n\t\t\t\tthis.translate( offset.x, offset.y, offset.z );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromObject: function ( object ) {\n\n\t\t\t// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( object.isPoints || object.isLine ) {\n\n\t\t\t\tvar positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );\n\t\t\t\tvar colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );\n\n\t\t\t\tthis.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );\n\t\t\t\tthis.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );\n\n\t\t\t\tif ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {\n\n\t\t\t\t\tvar lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );\n\n\t\t\t\t\tthis.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t\t}\n\n\t\t\t} else if ( object.isMesh ) {\n\n\t\t\t\tif ( geometry && geometry.isGeometry ) {\n\n\t\t\t\t\tthis.fromGeometry( geometry );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tvar position = [];\n\n\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tvar point = points[ i ];\n\t\t\t\tposition.push( point.x, point.y, point.z || 0 );\n\n\t\t\t}\n\n\t\t\tthis.addAttribute( 'position', new Float32BufferAttribute( position, 3 ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateFromObject: function ( object ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( object.isMesh ) {\n\n\t\t\t\tvar direct = geometry.__directGeometry;\n\n\t\t\t\tif ( geometry.elementsNeedUpdate === true ) {\n\n\t\t\t\t\tdirect = undefined;\n\t\t\t\t\tgeometry.elementsNeedUpdate = false;\n\n\t\t\t\t}\n\n\t\t\t\tif ( direct === undefined ) {\n\n\t\t\t\t\treturn this.fromGeometry( geometry );\n\n\t\t\t\t}\n\n\t\t\t\tdirect.verticesNeedUpdate = geometry.verticesNeedUpdate;\n\t\t\t\tdirect.normalsNeedUpdate = geometry.normalsNeedUpdate;\n\t\t\t\tdirect.colorsNeedUpdate = geometry.colorsNeedUpdate;\n\t\t\t\tdirect.uvsNeedUpdate = geometry.uvsNeedUpdate;\n\t\t\t\tdirect.groupsNeedUpdate = geometry.groupsNeedUpdate;\n\n\t\t\t\tgeometry.verticesNeedUpdate = false;\n\t\t\t\tgeometry.normalsNeedUpdate = false;\n\t\t\t\tgeometry.colorsNeedUpdate = false;\n\t\t\t\tgeometry.uvsNeedUpdate = false;\n\t\t\t\tgeometry.groupsNeedUpdate = false;\n\n\t\t\t\tgeometry = direct;\n\n\t\t\t}\n\n\t\t\tvar attribute;\n\n\t\t\tif ( geometry.verticesNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.position;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector3sArray( geometry.vertices );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.verticesNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.normalsNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.normal;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector3sArray( geometry.normals );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.normalsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.colorsNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.color;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyColorsArray( geometry.colors );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.colorsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvsNeedUpdate ) {\n\n\t\t\t\tattribute = this.attributes.uv;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector2sArray( geometry.uvs );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.uvsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.lineDistancesNeedUpdate ) {\n\n\t\t\t\tattribute = this.attributes.lineDistance;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyArray( geometry.lineDistances );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.lineDistancesNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.groupsNeedUpdate ) {\n\n\t\t\t\tgeometry.computeGroups( object.geometry );\n\t\t\t\tthis.groups = geometry.groups;\n\n\t\t\t\tgeometry.groupsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tfromGeometry: function ( geometry ) {\n\n\t\t\tgeometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );\n\n\t\t\treturn this.fromDirectGeometry( geometry.__directGeometry );\n\n\t\t},\n\n\t\tfromDirectGeometry: function ( geometry ) {\n\n\t\t\tvar positions = new Float32Array( geometry.vertices.length * 3 );\n\t\t\tthis.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );\n\n\t\t\tif ( geometry.normals.length > 0 ) {\n\n\t\t\t\tvar normals = new Float32Array( geometry.normals.length * 3 );\n\t\t\t\tthis.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.colors.length > 0 ) {\n\n\t\t\t\tvar colors = new Float32Array( geometry.colors.length * 3 );\n\t\t\t\tthis.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvs.length > 0 ) {\n\n\t\t\t\tvar uvs = new Float32Array( geometry.uvs.length * 2 );\n\t\t\t\tthis.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvs2.length > 0 ) {\n\n\t\t\t\tvar uvs2 = new Float32Array( geometry.uvs2.length * 2 );\n\t\t\t\tthis.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );\n\n\t\t\t}\n\n\t\t\t// groups\n\n\t\t\tthis.groups = geometry.groups;\n\n\t\t\t// morphs\n\n\t\t\tfor ( var name in geometry.morphTargets ) {\n\n\t\t\t\tvar array = [];\n\t\t\t\tvar morphTargets = geometry.morphTargets[ name ];\n\n\t\t\t\tfor ( var i = 0, l = morphTargets.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar morphTarget = morphTargets[ i ];\n\n\t\t\t\t\tvar attribute = new Float32BufferAttribute( morphTarget.length * 3, 3 );\n\n\t\t\t\t\tarray.push( attribute.copyVector3sArray( morphTarget ) );\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphAttributes[ name ] = array;\n\n\t\t\t}\n\n\t\t\t// skinning\n\n\t\t\tif ( geometry.skinIndices.length > 0 ) {\n\n\t\t\t\tvar skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );\n\t\t\t\tthis.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.skinWeights.length > 0 ) {\n\n\t\t\t\tvar skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );\n\t\t\t\tthis.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcomputeBoundingBox: function () {\n\n\t\t\tif ( this.boundingBox === null ) {\n\n\t\t\t\tthis.boundingBox = new Box3();\n\n\t\t\t}\n\n\t\t\tvar position = this.attributes.position;\n\n\t\t\tif ( position !== undefined ) {\n\n\t\t\t\tthis.boundingBox.setFromBufferAttribute( position );\n\n\t\t\t} else {\n\n\t\t\t\tthis.boundingBox.makeEmpty();\n\n\t\t\t}\n\n\t\t\tif ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The \"position\" attribute is likely to have NaN values.', this );\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeBoundingSphere: function () {\n\n\t\t\tvar box = new Box3();\n\t\t\tvar vector = new Vector3();\n\n\t\t\treturn function computeBoundingSphere() {\n\n\t\t\t\tif ( this.boundingSphere === null ) {\n\n\t\t\t\t\tthis.boundingSphere = new Sphere();\n\n\t\t\t\t}\n\n\t\t\t\tvar position = this.attributes.position;\n\n\t\t\t\tif ( position ) {\n\n\t\t\t\t\tvar center = this.boundingSphere.center;\n\n\t\t\t\t\tbox.setFromBufferAttribute( position );\n\t\t\t\t\tbox.getCenter( center );\n\n\t\t\t\t\t// hoping to find a boundingSphere with a radius smaller than the\n\t\t\t\t\t// boundingSphere of the boundingBox: sqrt(3) smaller in the best case\n\n\t\t\t\t\tvar maxRadiusSq = 0;\n\n\t\t\t\t\tfor ( var i = 0, il = position.count; i < il; i ++ ) {\n\n\t\t\t\t\t\tvector.x = position.getX( i );\n\t\t\t\t\t\tvector.y = position.getY( i );\n\t\t\t\t\t\tvector.z = position.getZ( i );\n\t\t\t\t\t\tmaxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.boundingSphere.radius = Math.sqrt( maxRadiusSq );\n\n\t\t\t\t\tif ( isNaN( this.boundingSphere.radius ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The \"position\" attribute is likely to have NaN values.', this );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcomputeFaceNormals: function () {\n\n\t\t\t// backwards compatibility\n\n\t\t},\n\n\t\tcomputeVertexNormals: function () {\n\n\t\t\tvar index = this.index;\n\t\t\tvar attributes = this.attributes;\n\t\t\tvar groups = this.groups;\n\n\t\t\tif ( attributes.position ) {\n\n\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\tif ( attributes.normal === undefined ) {\n\n\t\t\t\t\tthis.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// reset existing normals to zero\n\n\t\t\t\t\tvar array = attributes.normal.array;\n\n\t\t\t\t\tfor ( var i = 0, il = array.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tarray[ i ] = 0;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar normals = attributes.normal.array;\n\n\t\t\t\tvar vA, vB, vC;\n\t\t\t\tvar pA = new Vector3(), pB = new Vector3(), pC = new Vector3();\n\t\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\t\t// indexed elements\n\n\t\t\t\tif ( index ) {\n\n\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\tif ( groups.length === 0 ) {\n\n\t\t\t\t\t\tthis.addGroup( 0, indices.length );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( var j = 0, jl = groups.length; j < jl; ++ j ) {\n\n\t\t\t\t\t\tvar group = groups[ j ];\n\n\t\t\t\t\t\tvar start = group.start;\n\t\t\t\t\t\tvar count = group.count;\n\n\t\t\t\t\t\tfor ( var i = start, il = start + count; i < il; i += 3 ) {\n\n\t\t\t\t\t\t\tvA = indices[ i + 0 ] * 3;\n\t\t\t\t\t\t\tvB = indices[ i + 1 ] * 3;\n\t\t\t\t\t\t\tvC = indices[ i + 2 ] * 3;\n\n\t\t\t\t\t\t\tpA.fromArray( positions, vA );\n\t\t\t\t\t\t\tpB.fromArray( positions, vB );\n\t\t\t\t\t\t\tpC.fromArray( positions, vC );\n\n\t\t\t\t\t\t\tcb.subVectors( pC, pB );\n\t\t\t\t\t\t\tab.subVectors( pA, pB );\n\t\t\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\t\t\tnormals[ vA ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vA + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vA + 2 ] += cb.z;\n\n\t\t\t\t\t\t\tnormals[ vB ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vB + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vB + 2 ] += cb.z;\n\n\t\t\t\t\t\t\tnormals[ vC ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vC + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vC + 2 ] += cb.z;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// non-indexed elements (unconnected triangle soup)\n\n\t\t\t\t\tfor ( var i = 0, il = positions.length; i < il; i += 9 ) {\n\n\t\t\t\t\t\tpA.fromArray( positions, i );\n\t\t\t\t\t\tpB.fromArray( positions, i + 3 );\n\t\t\t\t\t\tpC.fromArray( positions, i + 6 );\n\n\t\t\t\t\t\tcb.subVectors( pC, pB );\n\t\t\t\t\t\tab.subVectors( pA, pB );\n\t\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\t\tnormals[ i ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 1 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 2 ] = cb.z;\n\n\t\t\t\t\t\tnormals[ i + 3 ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 4 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 5 ] = cb.z;\n\n\t\t\t\t\t\tnormals[ i + 6 ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 7 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 8 ] = cb.z;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.normalizeNormals();\n\n\t\t\t\tattributes.normal.needsUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tmerge: function ( geometry, offset ) {\n\n\t\t\tif ( ! ( geometry && geometry.isBufferGeometry ) ) {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( offset === undefined ) {\n\n\t\t\t\toffset = 0;\n\n\t\t\t\tconsole.warn(\n\t\t\t\t\t'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. '\n\t\t\t\t\t+ 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.'\n\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tif ( geometry.attributes[ key ] === undefined ) continue;\n\n\t\t\t\tvar attribute1 = attributes[ key ];\n\t\t\t\tvar attributeArray1 = attribute1.array;\n\n\t\t\t\tvar attribute2 = geometry.attributes[ key ];\n\t\t\t\tvar attributeArray2 = attribute2.array;\n\n\t\t\t\tvar attributeSize = attribute2.itemSize;\n\n\t\t\t\tfor ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {\n\n\t\t\t\t\tattributeArray1[ j ] = attributeArray2[ i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnormalizeNormals: function () {\n\n\t\t\tvar vector = new Vector3();\n\n\t\t\treturn function normalizeNormals() {\n\n\t\t\t\tvar normals = this.attributes.normal;\n\n\t\t\t\tfor ( var i = 0, il = normals.count; i < il; i ++ ) {\n\n\t\t\t\t\tvector.x = normals.getX( i );\n\t\t\t\t\tvector.y = normals.getY( i );\n\t\t\t\t\tvector.z = normals.getZ( i );\n\n\t\t\t\t\tvector.normalize();\n\n\t\t\t\t\tnormals.setXYZ( i, vector.x, vector.y, vector.z );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttoNonIndexed: function () {\n\n\t\t\tif ( this.index === null ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar geometry2 = new BufferGeometry();\n\n\t\t\tvar indices = this.index.array;\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var name in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ name ];\n\n\t\t\t\tvar array = attribute.array;\n\t\t\t\tvar itemSize = attribute.itemSize;\n\n\t\t\t\tvar array2 = new array.constructor( indices.length * itemSize );\n\n\t\t\t\tvar index = 0, index2 = 0;\n\n\t\t\t\tfor ( var i = 0, l = indices.length; i < l; i ++ ) {\n\n\t\t\t\t\tindex = indices[ i ] * itemSize;\n\n\t\t\t\t\tfor ( var j = 0; j < itemSize; j ++ ) {\n\n\t\t\t\t\t\tarray2[ index2 ++ ] = array[ index ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tgeometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) );\n\n\t\t\t}\n\n\t\t\tvar groups = this.groups;\n\n\t\t\tfor ( var i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\tvar group = groups[ i ];\n\t\t\t\tgeometry2.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t}\n\n\t\t\treturn geometry2;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'BufferGeometry',\n\t\t\t\t\tgenerator: 'BufferGeometry.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard BufferGeometry serialization\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\t\t\tif ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData;\n\n\t\t\tif ( this.parameters !== undefined ) {\n\n\t\t\t\tvar parameters = this.parameters;\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tif ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];\n\n\t\t\t\t}\n\n\t\t\t\treturn data;\n\n\t\t\t}\n\n\t\t\tdata.data = { attributes: {} };\n\n\t\t\tvar index = this.index;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tvar array = Array.prototype.slice.call( index.array );\n\n\t\t\t\tdata.data.index = {\n\t\t\t\t\ttype: index.array.constructor.name,\n\t\t\t\t\tarray: array\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ key ];\n\n\t\t\t\tvar array = Array.prototype.slice.call( attribute.array );\n\n\t\t\t\tdata.data.attributes[ key ] = {\n\t\t\t\t\titemSize: attribute.itemSize,\n\t\t\t\t\ttype: attribute.array.constructor.name,\n\t\t\t\t\tarray: array,\n\t\t\t\t\tnormalized: attribute.normalized\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar groups = this.groups;\n\n\t\t\tif ( groups.length > 0 ) {\n\n\t\t\t\tdata.data.groups = JSON.parse( JSON.stringify( groups ) );\n\n\t\t\t}\n\n\t\t\tvar boundingSphere = this.boundingSphere;\n\n\t\t\tif ( boundingSphere !== null ) {\n\n\t\t\t\tdata.data.boundingSphere = {\n\t\t\t\t\tcenter: boundingSphere.center.toArray(),\n\t\t\t\t\tradius: boundingSphere.radius\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\t/*\n\t\t\t // Handle primitives\n\n\t\t\t var parameters = this.parameters;\n\n\t\t\t if ( parameters !== undefined ) {\n\n\t\t\t var values = [];\n\n\t\t\t for ( var key in parameters ) {\n\n\t\t\t values.push( parameters[ key ] );\n\n\t\t\t }\n\n\t\t\t var geometry = Object.create( this.constructor.prototype );\n\t\t\t this.constructor.apply( geometry, values );\n\t\t\t return geometry;\n\n\t\t\t }\n\n\t\t\t return new this.constructor().copy( this );\n\t\t\t */\n\n\t\t\treturn new BufferGeometry().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tvar name, i, l;\n\n\t\t\t// reset\n\n\t\t\tthis.index = null;\n\t\t\tthis.attributes = {};\n\t\t\tthis.morphAttributes = {};\n\t\t\tthis.groups = [];\n\t\t\tthis.boundingBox = null;\n\t\t\tthis.boundingSphere = null;\n\n\t\t\t// name\n\n\t\t\tthis.name = source.name;\n\n\t\t\t// index\n\n\t\t\tvar index = source.index;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tthis.setIndex( index.clone() );\n\n\t\t\t}\n\n\t\t\t// attributes\n\n\t\t\tvar attributes = source.attributes;\n\n\t\t\tfor ( name in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ name ];\n\t\t\t\tthis.addAttribute( name, attribute.clone() );\n\n\t\t\t}\n\n\t\t\t// morph attributes\n\n\t\t\tvar morphAttributes = source.morphAttributes;\n\n\t\t\tfor ( name in morphAttributes ) {\n\n\t\t\t\tvar array = [];\n\t\t\t\tvar morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes\n\n\t\t\t\tfor ( i = 0, l = morphAttribute.length; i < l; i ++ ) {\n\n\t\t\t\t\tarray.push( morphAttribute[ i ].clone() );\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphAttributes[ name ] = array;\n\n\t\t\t}\n\n\t\t\t// groups\n\n\t\t\tvar groups = source.groups;\n\n\t\t\tfor ( i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\tvar group = groups[ i ];\n\t\t\t\tthis.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t}\n\n\t\t\t// bounding box\n\n\t\t\tvar boundingBox = source.boundingBox;\n\n\t\t\tif ( boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = boundingBox.clone();\n\n\t\t\t}\n\n\t\t\t// bounding sphere\n\n\t\t\tvar boundingSphere = source.boundingSphere;\n\n\t\t\tif ( boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\t// draw range\n\n\t\t\tthis.drawRange.start = source.drawRange.start;\n\t\t\tthis.drawRange.count = source.drawRange.count;\n\n\t\t\t// user data\n\n\t\t\tthis.userData = source.userData;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// BoxGeometry\n\n\tfunction BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'BoxGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\tdepth: depth,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tdepthSegments: depthSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tBoxGeometry.prototype = Object.create( Geometry.prototype );\n\tBoxGeometry.prototype.constructor = BoxGeometry;\n\n\t// BoxBufferGeometry\n\n\tfunction BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'BoxBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\tdepth: depth,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tdepthSegments: depthSegments\n\t\t};\n\n\t\tvar scope = this;\n\n\t\twidth = width || 1;\n\t\theight = height || 1;\n\t\tdepth = depth || 1;\n\n\t\t// segments\n\n\t\twidthSegments = Math.floor( widthSegments ) || 1;\n\t\theightSegments = Math.floor( heightSegments ) || 1;\n\t\tdepthSegments = Math.floor( depthSegments ) || 1;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar numberOfVertices = 0;\n\t\tvar groupStart = 0;\n\n\t\t// build each side of the box geometry\n\n\t\tbuildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px\n\t\tbuildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx\n\t\tbuildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py\n\t\tbuildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny\n\t\tbuildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz\n\t\tbuildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\tfunction buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {\n\n\t\t\tvar segmentWidth = width / gridX;\n\t\t\tvar segmentHeight = height / gridY;\n\n\t\t\tvar widthHalf = width / 2;\n\t\t\tvar heightHalf = height / 2;\n\t\t\tvar depthHalf = depth / 2;\n\n\t\t\tvar gridX1 = gridX + 1;\n\t\t\tvar gridY1 = gridY + 1;\n\n\t\t\tvar vertexCounter = 0;\n\t\t\tvar groupCount = 0;\n\n\t\t\tvar ix, iy;\n\n\t\t\tvar vector = new Vector3();\n\n\t\t\t// generate vertices, normals and uvs\n\n\t\t\tfor ( iy = 0; iy < gridY1; iy ++ ) {\n\n\t\t\t\tvar y = iy * segmentHeight - heightHalf;\n\n\t\t\t\tfor ( ix = 0; ix < gridX1; ix ++ ) {\n\n\t\t\t\t\tvar x = ix * segmentWidth - widthHalf;\n\n\t\t\t\t\t// set values to correct vector component\n\n\t\t\t\t\tvector[ u ] = x * udir;\n\t\t\t\t\tvector[ v ] = y * vdir;\n\t\t\t\t\tvector[ w ] = depthHalf;\n\n\t\t\t\t\t// now apply vector to vertex buffer\n\n\t\t\t\t\tvertices.push( vector.x, vector.y, vector.z );\n\n\t\t\t\t\t// set values to correct vector component\n\n\t\t\t\t\tvector[ u ] = 0;\n\t\t\t\t\tvector[ v ] = 0;\n\t\t\t\t\tvector[ w ] = depth > 0 ? 1 : - 1;\n\n\t\t\t\t\t// now apply vector to normal buffer\n\n\t\t\t\t\tnormals.push( vector.x, vector.y, vector.z );\n\n\t\t\t\t\t// uvs\n\n\t\t\t\t\tuvs.push( ix / gridX );\n\t\t\t\t\tuvs.push( 1 - ( iy / gridY ) );\n\n\t\t\t\t\t// counters\n\n\t\t\t\t\tvertexCounter += 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// indices\n\n\t\t\t// 1. you need three indices to draw a single face\n\t\t\t// 2. a single segment consists of two faces\n\t\t\t// 3. so we need to generate six (2*3) indices per segment\n\n\t\t\tfor ( iy = 0; iy < gridY; iy ++ ) {\n\n\t\t\t\tfor ( ix = 0; ix < gridX; ix ++ ) {\n\n\t\t\t\t\tvar a = numberOfVertices + ix + gridX1 * iy;\n\t\t\t\t\tvar b = numberOfVertices + ix + gridX1 * ( iy + 1 );\n\t\t\t\t\tvar c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );\n\t\t\t\t\tvar d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;\n\n\t\t\t\t\t// faces\n\n\t\t\t\t\tindices.push( a, b, d );\n\t\t\t\t\tindices.push( b, c, d );\n\n\t\t\t\t\t// increase counter\n\n\t\t\t\t\tgroupCount += 6;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\n\t\t\tscope.addGroup( groupStart, groupCount, materialIndex );\n\n\t\t\t// calculate new start value for groups\n\n\t\t\tgroupStart += groupCount;\n\n\t\t\t// update total number of vertices\n\n\t\t\tnumberOfVertices += vertexCounter;\n\n\t\t}\n\n\t}\n\n\tBoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tBoxBufferGeometry.prototype.constructor = BoxBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// PlaneGeometry\n\n\tfunction PlaneGeometry( width, height, widthSegments, heightSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'PlaneGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tPlaneGeometry.prototype = Object.create( Geometry.prototype );\n\tPlaneGeometry.prototype.constructor = PlaneGeometry;\n\n\t// PlaneBufferGeometry\n\n\tfunction PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'PlaneBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments\n\t\t};\n\n\t\twidth = width || 1;\n\t\theight = height || 1;\n\n\t\tvar width_half = width / 2;\n\t\tvar height_half = height / 2;\n\n\t\tvar gridX = Math.floor( widthSegments ) || 1;\n\t\tvar gridY = Math.floor( heightSegments ) || 1;\n\n\t\tvar gridX1 = gridX + 1;\n\t\tvar gridY1 = gridY + 1;\n\n\t\tvar segment_width = width / gridX;\n\t\tvar segment_height = height / gridY;\n\n\t\tvar ix, iy;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( iy = 0; iy < gridY1; iy ++ ) {\n\n\t\t\tvar y = iy * segment_height - height_half;\n\n\t\t\tfor ( ix = 0; ix < gridX1; ix ++ ) {\n\n\t\t\t\tvar x = ix * segment_width - width_half;\n\n\t\t\t\tvertices.push( x, - y, 0 );\n\n\t\t\t\tnormals.push( 0, 0, 1 );\n\n\t\t\t\tuvs.push( ix / gridX );\n\t\t\t\tuvs.push( 1 - ( iy / gridY ) );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( iy = 0; iy < gridY; iy ++ ) {\n\n\t\t\tfor ( ix = 0; ix < gridX; ix ++ ) {\n\n\t\t\t\tvar a = ix + gridX1 * iy;\n\t\t\t\tvar b = ix + gridX1 * ( iy + 1 );\n\t\t\t\tvar c = ( ix + 1 ) + gridX1 * ( iy + 1 );\n\t\t\t\tvar d = ( ix + 1 ) + gridX1 * iy;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tPlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tPlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tvar materialId = 0;\n\n\tfunction Material() {\n\n\t\tObject.defineProperty( this, 'id', { value: materialId ++ } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Material';\n\n\t\tthis.fog = true;\n\t\tthis.lights = true;\n\n\t\tthis.blending = NormalBlending;\n\t\tthis.side = FrontSide;\n\t\tthis.flatShading = false;\n\t\tthis.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors\n\n\t\tthis.opacity = 1;\n\t\tthis.transparent = false;\n\n\t\tthis.blendSrc = SrcAlphaFactor;\n\t\tthis.blendDst = OneMinusSrcAlphaFactor;\n\t\tthis.blendEquation = AddEquation;\n\t\tthis.blendSrcAlpha = null;\n\t\tthis.blendDstAlpha = null;\n\t\tthis.blendEquationAlpha = null;\n\n\t\tthis.depthFunc = LessEqualDepth;\n\t\tthis.depthTest = true;\n\t\tthis.depthWrite = true;\n\n\t\tthis.clippingPlanes = null;\n\t\tthis.clipIntersection = false;\n\t\tthis.clipShadows = false;\n\n\t\tthis.shadowSide = null;\n\n\t\tthis.colorWrite = true;\n\n\t\tthis.precision = null; // override the renderer's default precision for this material\n\n\t\tthis.polygonOffset = false;\n\t\tthis.polygonOffsetFactor = 0;\n\t\tthis.polygonOffsetUnits = 0;\n\n\t\tthis.dithering = false;\n\n\t\tthis.alphaTest = 0;\n\t\tthis.premultipliedAlpha = false;\n\n\t\tthis.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer\n\n\t\tthis.visible = true;\n\n\t\tthis.userData = {};\n\n\t\tthis.needsUpdate = true;\n\n\t}\n\n\tMaterial.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Material,\n\n\t\tisMaterial: true,\n\n\t\tonBeforeCompile: function () {},\n\n\t\tsetValues: function ( values ) {\n\n\t\t\tif ( values === undefined ) return;\n\n\t\t\tfor ( var key in values ) {\n\n\t\t\t\tvar newValue = values[ key ];\n\n\t\t\t\tif ( newValue === undefined ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.Material: '\" + key + \"' parameter is undefined.\" );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\t// for backward compatability if shading is set in the constructor\n\t\t\t\tif ( key === 'shading' ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );\n\t\t\t\t\tthis.flatShading = ( newValue === FlatShading ) ? true : false;\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tvar currentValue = this[ key ];\n\n\t\t\t\tif ( currentValue === undefined ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.\" + this.type + \": '\" + key + \"' is not a property of this material.\" );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tif ( currentValue && currentValue.isColor ) {\n\n\t\t\t\t\tcurrentValue.set( newValue );\n\n\t\t\t\t} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {\n\n\t\t\t\t\tcurrentValue.copy( newValue );\n\n\t\t\t\t} else if ( key === 'overdraw' ) {\n\n\t\t\t\t\t// ensure overdraw is backwards-compatible with legacy boolean type\n\t\t\t\t\tthis[ key ] = Number( newValue );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis[ key ] = newValue;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar isRoot = ( meta === undefined || typeof meta === 'string' );\n\n\t\t\tif ( isRoot ) {\n\n\t\t\t\tmeta = {\n\t\t\t\t\ttextures: {},\n\t\t\t\t\timages: {}\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Material',\n\t\t\t\t\tgenerator: 'Material.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard Material serialization\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\n\t\t\tif ( this.color && this.color.isColor ) data.color = this.color.getHex();\n\n\t\t\tif ( this.roughness !== undefined ) data.roughness = this.roughness;\n\t\t\tif ( this.metalness !== undefined ) data.metalness = this.metalness;\n\n\t\t\tif ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();\n\t\t\tif ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;\n\n\t\t\tif ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();\n\t\t\tif ( this.shininess !== undefined ) data.shininess = this.shininess;\n\t\t\tif ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;\n\t\t\tif ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;\n\n\t\t\tif ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;\n\t\t\tif ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;\n\t\t\tif ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;\n\n\t\t\tif ( this.aoMap && this.aoMap.isTexture ) {\n\n\t\t\t\tdata.aoMap = this.aoMap.toJSON( meta ).uuid;\n\t\t\t\tdata.aoMapIntensity = this.aoMapIntensity;\n\n\t\t\t}\n\n\t\t\tif ( this.bumpMap && this.bumpMap.isTexture ) {\n\n\t\t\t\tdata.bumpMap = this.bumpMap.toJSON( meta ).uuid;\n\t\t\t\tdata.bumpScale = this.bumpScale;\n\n\t\t\t}\n\n\t\t\tif ( this.normalMap && this.normalMap.isTexture ) {\n\n\t\t\t\tdata.normalMap = this.normalMap.toJSON( meta ).uuid;\n\t\t\t\tdata.normalMapType = this.normalMapType;\n\t\t\t\tdata.normalScale = this.normalScale.toArray();\n\n\t\t\t}\n\n\t\t\tif ( this.displacementMap && this.displacementMap.isTexture ) {\n\n\t\t\t\tdata.displacementMap = this.displacementMap.toJSON( meta ).uuid;\n\t\t\t\tdata.displacementScale = this.displacementScale;\n\t\t\t\tdata.displacementBias = this.displacementBias;\n\n\t\t\t}\n\n\t\t\tif ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;\n\t\t\tif ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;\n\n\t\t\tif ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;\n\t\t\tif ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;\n\n\t\t\tif ( this.envMap && this.envMap.isTexture ) {\n\n\t\t\t\tdata.envMap = this.envMap.toJSON( meta ).uuid;\n\t\t\t\tdata.reflectivity = this.reflectivity; // Scale behind envMap\n\n\t\t\t}\n\n\t\t\tif ( this.gradientMap && this.gradientMap.isTexture ) {\n\n\t\t\t\tdata.gradientMap = this.gradientMap.toJSON( meta ).uuid;\n\n\t\t\t}\n\n\t\t\tif ( this.size !== undefined ) data.size = this.size;\n\t\t\tif ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;\n\n\t\t\tif ( this.blending !== NormalBlending ) data.blending = this.blending;\n\t\t\tif ( this.flatShading === true ) data.flatShading = this.flatShading;\n\t\t\tif ( this.side !== FrontSide ) data.side = this.side;\n\t\t\tif ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;\n\n\t\t\tif ( this.opacity < 1 ) data.opacity = this.opacity;\n\t\t\tif ( this.transparent === true ) data.transparent = this.transparent;\n\n\t\t\tdata.depthFunc = this.depthFunc;\n\t\t\tdata.depthTest = this.depthTest;\n\t\t\tdata.depthWrite = this.depthWrite;\n\n\t\t\t// rotation (SpriteMaterial)\n\t\t\tif ( this.rotation !== 0 ) data.rotation = this.rotation;\n\n\t\t\tif ( this.linewidth !== 1 ) data.linewidth = this.linewidth;\n\t\t\tif ( this.dashSize !== undefined ) data.dashSize = this.dashSize;\n\t\t\tif ( this.gapSize !== undefined ) data.gapSize = this.gapSize;\n\t\t\tif ( this.scale !== undefined ) data.scale = this.scale;\n\n\t\t\tif ( this.dithering === true ) data.dithering = true;\n\n\t\t\tif ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;\n\t\t\tif ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;\n\n\t\t\tif ( this.wireframe === true ) data.wireframe = this.wireframe;\n\t\t\tif ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;\n\t\t\tif ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;\n\t\t\tif ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;\n\n\t\t\tif ( this.morphTargets === true ) data.morphTargets = true;\n\t\t\tif ( this.skinning === true ) data.skinning = true;\n\n\t\t\tif ( this.visible === false ) data.visible = false;\n\t\t\tif ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;\n\n\t\t\t// TODO: Copied from Object3D.toJSON\n\n\t\t\tfunction extractFromCache( cache ) {\n\n\t\t\t\tvar values = [];\n\n\t\t\t\tfor ( var key in cache ) {\n\n\t\t\t\t\tvar data = cache[ key ];\n\t\t\t\t\tdelete data.metadata;\n\t\t\t\t\tvalues.push( data );\n\n\t\t\t\t}\n\n\t\t\t\treturn values;\n\n\t\t\t}\n\n\t\t\tif ( isRoot ) {\n\n\t\t\t\tvar textures = extractFromCache( meta.textures );\n\t\t\t\tvar images = extractFromCache( meta.images );\n\n\t\t\t\tif ( textures.length > 0 ) data.textures = textures;\n\t\t\t\tif ( images.length > 0 ) data.images = images;\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.fog = source.fog;\n\t\t\tthis.lights = source.lights;\n\n\t\t\tthis.blending = source.blending;\n\t\t\tthis.side = source.side;\n\t\t\tthis.flatShading = source.flatShading;\n\t\t\tthis.vertexColors = source.vertexColors;\n\n\t\t\tthis.opacity = source.opacity;\n\t\t\tthis.transparent = source.transparent;\n\n\t\t\tthis.blendSrc = source.blendSrc;\n\t\t\tthis.blendDst = source.blendDst;\n\t\t\tthis.blendEquation = source.blendEquation;\n\t\t\tthis.blendSrcAlpha = source.blendSrcAlpha;\n\t\t\tthis.blendDstAlpha = source.blendDstAlpha;\n\t\t\tthis.blendEquationAlpha = source.blendEquationAlpha;\n\n\t\t\tthis.depthFunc = source.depthFunc;\n\t\t\tthis.depthTest = source.depthTest;\n\t\t\tthis.depthWrite = source.depthWrite;\n\n\t\t\tthis.colorWrite = source.colorWrite;\n\n\t\t\tthis.precision = source.precision;\n\n\t\t\tthis.polygonOffset = source.polygonOffset;\n\t\t\tthis.polygonOffsetFactor = source.polygonOffsetFactor;\n\t\t\tthis.polygonOffsetUnits = source.polygonOffsetUnits;\n\n\t\t\tthis.dithering = source.dithering;\n\n\t\t\tthis.alphaTest = source.alphaTest;\n\t\t\tthis.premultipliedAlpha = source.premultipliedAlpha;\n\n\t\t\tthis.overdraw = source.overdraw;\n\n\t\t\tthis.visible = source.visible;\n\t\t\tthis.userData = JSON.parse( JSON.stringify( source.userData ) );\n\n\t\t\tthis.clipShadows = source.clipShadows;\n\t\t\tthis.clipIntersection = source.clipIntersection;\n\n\t\t\tvar srcPlanes = source.clippingPlanes,\n\t\t\t\tdstPlanes = null;\n\n\t\t\tif ( srcPlanes !== null ) {\n\n\t\t\t\tvar n = srcPlanes.length;\n\t\t\t\tdstPlanes = new Array( n );\n\n\t\t\t\tfor ( var i = 0; i !== n; ++ i )\n\t\t\t\t\tdstPlanes[ i ] = srcPlanes[ i ].clone();\n\n\t\t\t}\n\n\t\t\tthis.clippingPlanes = dstPlanes;\n\n\t\t\tthis.shadowSide = source.shadowSide;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * depthTest: ,\n\t * depthWrite: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: \n\t * }\n\t */\n\n\tfunction MeshBasicMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshBasicMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // emissive\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshBasicMaterial.prototype = Object.create( Material.prototype );\n\tMeshBasicMaterial.prototype.constructor = MeshBasicMaterial;\n\n\tMeshBasicMaterial.prototype.isMeshBasicMaterial = true;\n\n\tMeshBasicMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * defines: { \"label\" : \"value\" },\n\t * uniforms: { \"parameter1\": { value: 1.0 }, \"parameter2\": { value2: 2 } },\n\t *\n\t * fragmentShader: ,\n\t * vertexShader: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * lights: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction ShaderMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'ShaderMaterial';\n\n\t\tthis.defines = {};\n\t\tthis.uniforms = {};\n\n\t\tthis.vertexShader = 'void main() {\\n\\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\\n}';\n\t\tthis.fragmentShader = 'void main() {\\n\\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\\n}';\n\n\t\tthis.linewidth = 1;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false; // set to use scene fog\n\t\tthis.lights = false; // set to use scene lights\n\t\tthis.clipping = false; // set to use user-defined clipping planes\n\n\t\tthis.skinning = false; // set to use skinning attribute streams\n\t\tthis.morphTargets = false; // set to use morph targets\n\t\tthis.morphNormals = false; // set to use morph normals\n\n\t\tthis.extensions = {\n\t\t\tderivatives: false, // set to use derivatives\n\t\t\tfragDepth: false, // set to use fragment depth values\n\t\t\tdrawBuffers: false, // set to use draw buffers\n\t\t\tshaderTextureLOD: false // set to use shader texture LOD\n\t\t};\n\n\t\t// When rendered geometry doesn't include these attributes but the material does,\n\t\t// use these default values in WebGL. This avoids errors when buffer data is missing.\n\t\tthis.defaultAttributeValues = {\n\t\t\t'color': [ 1, 1, 1 ],\n\t\t\t'uv': [ 0, 0 ],\n\t\t\t'uv2': [ 0, 0 ]\n\t\t};\n\n\t\tthis.index0AttributeName = undefined;\n\t\tthis.uniformsNeedUpdate = false;\n\n\t\tif ( parameters !== undefined ) {\n\n\t\t\tif ( parameters.attributes !== undefined ) {\n\n\t\t\t\tconsole.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );\n\n\t\t\t}\n\n\t\t\tthis.setValues( parameters );\n\n\t\t}\n\n\t}\n\n\tShaderMaterial.prototype = Object.create( Material.prototype );\n\tShaderMaterial.prototype.constructor = ShaderMaterial;\n\n\tShaderMaterial.prototype.isShaderMaterial = true;\n\n\tShaderMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.fragmentShader = source.fragmentShader;\n\t\tthis.vertexShader = source.vertexShader;\n\n\t\tthis.uniforms = UniformsUtils.clone( source.uniforms );\n\n\t\tthis.defines = Object.assign( {}, source.defines );\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\tthis.lights = source.lights;\n\t\tthis.clipping = source.clipping;\n\n\t\tthis.skinning = source.skinning;\n\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\tthis.extensions = source.extensions;\n\n\t\treturn this;\n\n\t};\n\n\tShaderMaterial.prototype.toJSON = function ( meta ) {\n\n\t\tvar data = Material.prototype.toJSON.call( this, meta );\n\n\t\tdata.uniforms = this.uniforms;\n\t\tdata.vertexShader = this.vertexShader;\n\t\tdata.fragmentShader = this.fragmentShader;\n\n\t\treturn data;\n\n\t};\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Ray( origin, direction ) {\n\n\t\tthis.origin = ( origin !== undefined ) ? origin : new Vector3();\n\t\tthis.direction = ( direction !== undefined ) ? direction : new Vector3();\n\n\t}\n\n\tObject.assign( Ray.prototype, {\n\n\t\tset: function ( origin, direction ) {\n\n\t\t\tthis.origin.copy( origin );\n\t\t\tthis.direction.copy( direction );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( ray ) {\n\n\t\t\tthis.origin.copy( ray.origin );\n\t\t\tthis.direction.copy( ray.direction );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tat: function ( t, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Ray: .at() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.direction ).multiplyScalar( t ).add( this.origin );\n\n\t\t},\n\n\t\tlookAt: function ( v ) {\n\n\t\t\tthis.direction.copy( v ).sub( this.origin ).normalize();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trecast: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function recast( t ) {\n\n\t\t\t\tthis.origin.copy( this.at( t, v1 ) );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclosestPointToPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Ray: .closestPointToPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\ttarget.subVectors( point, this.origin );\n\n\t\t\tvar directionDistance = target.dot( this.direction );\n\n\t\t\tif ( directionDistance < 0 ) {\n\n\t\t\t\treturn target.copy( this.origin );\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn Math.sqrt( this.distanceSqToPoint( point ) );\n\n\t\t},\n\n\t\tdistanceSqToPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function distanceSqToPoint( point ) {\n\n\t\t\t\tvar directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );\n\n\t\t\t\t// point behind the ray\n\n\t\t\t\tif ( directionDistance < 0 ) {\n\n\t\t\t\t\treturn this.origin.distanceToSquared( point );\n\n\t\t\t\t}\n\n\t\t\t\tv1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );\n\n\t\t\t\treturn v1.distanceToSquared( point );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tdistanceSqToSegment: function () {\n\n\t\t\tvar segCenter = new Vector3();\n\t\t\tvar segDir = new Vector3();\n\t\t\tvar diff = new Vector3();\n\n\t\t\treturn function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {\n\n\t\t\t\t// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h\n\t\t\t\t// It returns the min distance between the ray and the segment\n\t\t\t\t// defined by v0 and v1\n\t\t\t\t// It can also set two optional targets :\n\t\t\t\t// - The closest point on the ray\n\t\t\t\t// - The closest point on the segment\n\n\t\t\t\tsegCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );\n\t\t\t\tsegDir.copy( v1 ).sub( v0 ).normalize();\n\t\t\t\tdiff.copy( this.origin ).sub( segCenter );\n\n\t\t\t\tvar segExtent = v0.distanceTo( v1 ) * 0.5;\n\t\t\t\tvar a01 = - this.direction.dot( segDir );\n\t\t\t\tvar b0 = diff.dot( this.direction );\n\t\t\t\tvar b1 = - diff.dot( segDir );\n\t\t\t\tvar c = diff.lengthSq();\n\t\t\t\tvar det = Math.abs( 1 - a01 * a01 );\n\t\t\t\tvar s0, s1, sqrDist, extDet;\n\n\t\t\t\tif ( det > 0 ) {\n\n\t\t\t\t\t// The ray and segment are not parallel.\n\n\t\t\t\t\ts0 = a01 * b1 - b0;\n\t\t\t\t\ts1 = a01 * b0 - b1;\n\t\t\t\t\textDet = segExtent * det;\n\n\t\t\t\t\tif ( s0 >= 0 ) {\n\n\t\t\t\t\t\tif ( s1 >= - extDet ) {\n\n\t\t\t\t\t\t\tif ( s1 <= extDet ) {\n\n\t\t\t\t\t\t\t\t// region 0\n\t\t\t\t\t\t\t\t// Minimum at interior points of ray and segment.\n\n\t\t\t\t\t\t\t\tvar invDet = 1 / det;\n\t\t\t\t\t\t\t\ts0 *= invDet;\n\t\t\t\t\t\t\t\ts1 *= invDet;\n\t\t\t\t\t\t\t\tsqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t// region 1\n\n\t\t\t\t\t\t\t\ts1 = segExtent;\n\t\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// region 5\n\n\t\t\t\t\t\t\ts1 = - segExtent;\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( s1 <= - extDet ) {\n\n\t\t\t\t\t\t\t// region 4\n\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );\n\t\t\t\t\t\t\ts1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t} else if ( s1 <= extDet ) {\n\n\t\t\t\t\t\t\t// region 3\n\n\t\t\t\t\t\t\ts0 = 0;\n\t\t\t\t\t\t\ts1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// region 2\n\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * segExtent + b0 ) );\n\t\t\t\t\t\t\ts1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// Ray and segment are parallel.\n\n\t\t\t\t\ts1 = ( a01 > 0 ) ? - segExtent : segExtent;\n\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t}\n\n\t\t\t\tif ( optionalPointOnRay ) {\n\n\t\t\t\t\toptionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );\n\n\t\t\t\t}\n\n\t\t\t\tif ( optionalPointOnSegment ) {\n\n\t\t\t\t\toptionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );\n\n\t\t\t\t}\n\n\t\t\t\treturn sqrDist;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectSphere: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function intersectSphere( sphere, target ) {\n\n\t\t\t\tv1.subVectors( sphere.center, this.origin );\n\t\t\t\tvar tca = v1.dot( this.direction );\n\t\t\t\tvar d2 = v1.dot( v1 ) - tca * tca;\n\t\t\t\tvar radius2 = sphere.radius * sphere.radius;\n\n\t\t\t\tif ( d2 > radius2 ) return null;\n\n\t\t\t\tvar thc = Math.sqrt( radius2 - d2 );\n\n\t\t\t\t// t0 = first intersect point - entrance on front of sphere\n\t\t\t\tvar t0 = tca - thc;\n\n\t\t\t\t// t1 = second intersect point - exit point on back of sphere\n\t\t\t\tvar t1 = tca + thc;\n\n\t\t\t\t// test to see if both t0 and t1 are behind the ray - if so, return null\n\t\t\t\tif ( t0 < 0 && t1 < 0 ) return null;\n\n\t\t\t\t// test to see if t0 is behind the ray:\n\t\t\t\t// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,\n\t\t\t\t// in order to always return an intersect point that is in front of the ray.\n\t\t\t\tif ( t0 < 0 ) return this.at( t1, target );\n\n\t\t\t\t// else t0 is in front of the ray, so return the first collision point scaled by t0\n\t\t\t\treturn this.at( t0, target );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\treturn this.distanceToPoint( sphere.center ) <= sphere.radius;\n\n\t\t},\n\n\t\tdistanceToPlane: function ( plane ) {\n\n\t\t\tvar denominator = plane.normal.dot( this.direction );\n\n\t\t\tif ( denominator === 0 ) {\n\n\t\t\t\t// line is coplanar, return origin\n\t\t\t\tif ( plane.distanceToPoint( this.origin ) === 0 ) {\n\n\t\t\t\t\treturn 0;\n\n\t\t\t\t}\n\n\t\t\t\t// Null is preferable to undefined since undefined means.... it is undefined\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;\n\n\t\t\t// Return if the ray never intersects the plane\n\n\t\t\treturn t >= 0 ? t : null;\n\n\t\t},\n\n\t\tintersectPlane: function ( plane, target ) {\n\n\t\t\tvar t = this.distanceToPlane( plane );\n\n\t\t\tif ( t === null ) {\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\treturn this.at( t, target );\n\n\t\t},\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\t// check if the ray lies on the plane first\n\n\t\t\tvar distToPoint = plane.distanceToPoint( this.origin );\n\n\t\t\tif ( distToPoint === 0 ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\tvar denominator = plane.normal.dot( this.direction );\n\n\t\t\tif ( denominator * distToPoint < 0 ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\t// ray origin is behind the plane (and is pointing behind it)\n\n\t\t\treturn false;\n\n\t\t},\n\n\t\tintersectBox: function ( box, target ) {\n\n\t\t\tvar tmin, tmax, tymin, tymax, tzmin, tzmax;\n\n\t\t\tvar invdirx = 1 / this.direction.x,\n\t\t\t\tinvdiry = 1 / this.direction.y,\n\t\t\t\tinvdirz = 1 / this.direction.z;\n\n\t\t\tvar origin = this.origin;\n\n\t\t\tif ( invdirx >= 0 ) {\n\n\t\t\t\ttmin = ( box.min.x - origin.x ) * invdirx;\n\t\t\t\ttmax = ( box.max.x - origin.x ) * invdirx;\n\n\t\t\t} else {\n\n\t\t\t\ttmin = ( box.max.x - origin.x ) * invdirx;\n\t\t\t\ttmax = ( box.min.x - origin.x ) * invdirx;\n\n\t\t\t}\n\n\t\t\tif ( invdiry >= 0 ) {\n\n\t\t\t\ttymin = ( box.min.y - origin.y ) * invdiry;\n\t\t\t\ttymax = ( box.max.y - origin.y ) * invdiry;\n\n\t\t\t} else {\n\n\t\t\t\ttymin = ( box.max.y - origin.y ) * invdiry;\n\t\t\t\ttymax = ( box.min.y - origin.y ) * invdiry;\n\n\t\t\t}\n\n\t\t\tif ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;\n\n\t\t\t// These lines also handle the case where tmin or tmax is NaN\n\t\t\t// (result of 0 * Infinity). x !== x returns true if x is NaN\n\n\t\t\tif ( tymin > tmin || tmin !== tmin ) tmin = tymin;\n\n\t\t\tif ( tymax < tmax || tmax !== tmax ) tmax = tymax;\n\n\t\t\tif ( invdirz >= 0 ) {\n\n\t\t\t\ttzmin = ( box.min.z - origin.z ) * invdirz;\n\t\t\t\ttzmax = ( box.max.z - origin.z ) * invdirz;\n\n\t\t\t} else {\n\n\t\t\t\ttzmin = ( box.max.z - origin.z ) * invdirz;\n\t\t\t\ttzmax = ( box.min.z - origin.z ) * invdirz;\n\n\t\t\t}\n\n\t\t\tif ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;\n\n\t\t\tif ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;\n\n\t\t\tif ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;\n\n\t\t\t//return point closest to the ray (positive side)\n\n\t\t\tif ( tmax < 0 ) return null;\n\n\t\t\treturn this.at( tmin >= 0 ? tmin : tmax, target );\n\n\t\t},\n\n\t\tintersectsBox: ( function () {\n\n\t\t\tvar v = new Vector3();\n\n\t\t\treturn function intersectsBox( box ) {\n\n\t\t\t\treturn this.intersectBox( box, v ) !== null;\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tintersectTriangle: function () {\n\n\t\t\t// Compute the offset origin, edges, and normal.\n\t\t\tvar diff = new Vector3();\n\t\t\tvar edge1 = new Vector3();\n\t\t\tvar edge2 = new Vector3();\n\t\t\tvar normal = new Vector3();\n\n\t\t\treturn function intersectTriangle( a, b, c, backfaceCulling, target ) {\n\n\t\t\t\t// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h\n\n\t\t\t\tedge1.subVectors( b, a );\n\t\t\t\tedge2.subVectors( c, a );\n\t\t\t\tnormal.crossVectors( edge1, edge2 );\n\n\t\t\t\t// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,\n\t\t\t\t// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by\n\t\t\t\t// |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))\n\t\t\t\t// |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))\n\t\t\t\t// |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)\n\t\t\t\tvar DdN = this.direction.dot( normal );\n\t\t\t\tvar sign;\n\n\t\t\t\tif ( DdN > 0 ) {\n\n\t\t\t\t\tif ( backfaceCulling ) return null;\n\t\t\t\t\tsign = 1;\n\n\t\t\t\t} else if ( DdN < 0 ) {\n\n\t\t\t\t\tsign = - 1;\n\t\t\t\t\tDdN = - DdN;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\tdiff.subVectors( this.origin, a );\n\t\t\t\tvar DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );\n\n\t\t\t\t// b1 < 0, no intersection\n\t\t\t\tif ( DdQxE2 < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\tvar DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );\n\n\t\t\t\t// b2 < 0, no intersection\n\t\t\t\tif ( DdE1xQ < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// b1+b2 > 1, no intersection\n\t\t\t\tif ( DdQxE2 + DdE1xQ > DdN ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// Line intersects triangle, check if ray does.\n\t\t\t\tvar QdN = - sign * diff.dot( normal );\n\n\t\t\t\t// t < 0, no intersection\n\t\t\t\tif ( QdN < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// Ray intersects triangle.\n\t\t\t\treturn this.at( QdN / DdN, target );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyMatrix4: function ( matrix4 ) {\n\n\t\t\tthis.origin.applyMatrix4( matrix4 );\n\t\t\tthis.direction.transformDirection( matrix4 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( ray ) {\n\n\t\t\treturn ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Triangle( a, b, c ) {\n\n\t\tthis.a = ( a !== undefined ) ? a : new Vector3();\n\t\tthis.b = ( b !== undefined ) ? b : new Vector3();\n\t\tthis.c = ( c !== undefined ) ? c : new Vector3();\n\n\t}\n\n\tObject.assign( Triangle, {\n\n\t\tgetNormal: function () {\n\n\t\t\tvar v0 = new Vector3();\n\n\t\t\treturn function getNormal( a, b, c, target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Triangle: .getNormal() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\ttarget.subVectors( c, b );\n\t\t\t\tv0.subVectors( a, b );\n\t\t\t\ttarget.cross( v0 );\n\n\t\t\t\tvar targetLengthSq = target.lengthSq();\n\t\t\t\tif ( targetLengthSq > 0 ) {\n\n\t\t\t\t\treturn target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) );\n\n\t\t\t\t}\n\n\t\t\t\treturn target.set( 0, 0, 0 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\t// static/instance method to calculate barycentric coordinates\n\t\t// based on: http://www.blackpawn.com/texts/pointinpoly/default.html\n\t\tgetBarycoord: function () {\n\n\t\t\tvar v0 = new Vector3();\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function getBarycoord( point, a, b, c, target ) {\n\n\t\t\t\tv0.subVectors( c, a );\n\t\t\t\tv1.subVectors( b, a );\n\t\t\t\tv2.subVectors( point, a );\n\n\t\t\t\tvar dot00 = v0.dot( v0 );\n\t\t\t\tvar dot01 = v0.dot( v1 );\n\t\t\t\tvar dot02 = v0.dot( v2 );\n\t\t\t\tvar dot11 = v1.dot( v1 );\n\t\t\t\tvar dot12 = v1.dot( v2 );\n\n\t\t\t\tvar denom = ( dot00 * dot11 - dot01 * dot01 );\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Triangle: .getBarycoord() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\t// collinear or singular triangle\n\t\t\t\tif ( denom === 0 ) {\n\n\t\t\t\t\t// arbitrary location outside of triangle?\n\t\t\t\t\t// not sure if this is the best idea, maybe should be returning undefined\n\t\t\t\t\treturn target.set( - 2, - 1, - 1 );\n\n\t\t\t\t}\n\n\t\t\t\tvar invDenom = 1 / denom;\n\t\t\t\tvar u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;\n\t\t\t\tvar v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;\n\n\t\t\t\t// barycentric coordinates must always sum to 1\n\t\t\t\treturn target.set( 1 - u - v, v, u );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcontainsPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function containsPoint( point, a, b, c ) {\n\n\t\t\t\tTriangle.getBarycoord( point, a, b, c, v1 );\n\n\t\t\t\treturn ( v1.x >= 0 ) && ( v1.y >= 0 ) && ( ( v1.x + v1.y ) <= 1 );\n\n\t\t\t};\n\n\t\t}()\n\n\t} );\n\n\tObject.assign( Triangle.prototype, {\n\n\t\tset: function ( a, b, c ) {\n\n\t\t\tthis.a.copy( a );\n\t\t\tthis.b.copy( b );\n\t\t\tthis.c.copy( c );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPointsAndIndices: function ( points, i0, i1, i2 ) {\n\n\t\t\tthis.a.copy( points[ i0 ] );\n\t\t\tthis.b.copy( points[ i1 ] );\n\t\t\tthis.c.copy( points[ i2 ] );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( triangle ) {\n\n\t\t\tthis.a.copy( triangle.a );\n\t\t\tthis.b.copy( triangle.b );\n\t\t\tthis.c.copy( triangle.c );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetArea: function () {\n\n\t\t\tvar v0 = new Vector3();\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function getArea() {\n\n\t\t\t\tv0.subVectors( this.c, this.b );\n\t\t\t\tv1.subVectors( this.a, this.b );\n\n\t\t\t\treturn v0.cross( v1 ).length() * 0.5;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetMidpoint: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Triangle: .getMidpoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );\n\n\t\t},\n\n\t\tgetNormal: function ( target ) {\n\n\t\t\treturn Triangle.getNormal( this.a, this.b, this.c, target );\n\n\t\t},\n\n\t\tgetPlane: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Triangle: .getPlane() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.setFromCoplanarPoints( this.a, this.b, this.c );\n\n\t\t},\n\n\t\tgetBarycoord: function ( point, target ) {\n\n\t\t\treturn Triangle.getBarycoord( point, this.a, this.b, this.c, target );\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn Triangle.containsPoint( point, this.a, this.b, this.c );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsTriangle( this );\n\n\t\t},\n\n\t\tclosestPointToPoint: function () {\n\n\t\t\tvar vab = new Vector3();\n\t\t\tvar vac = new Vector3();\n\t\t\tvar vbc = new Vector3();\n\t\t\tvar vap = new Vector3();\n\t\t\tvar vbp = new Vector3();\n\t\t\tvar vcp = new Vector3();\n\n\t\t\treturn function closestPointToPoint( p, target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Triangle: .closestPointToPoint() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tvar a = this.a, b = this.b, c = this.c;\n\t\t\t\tvar v, w;\n\n\t\t\t\t// algorithm thanks to Real-Time Collision Detection by Christer Ericson,\n\t\t\t\t// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,\n\t\t\t\t// under the accompanying license; see chapter 5.1.5 for detailed explanation.\n\t\t\t\t// basically, we're distinguishing which of the voronoi regions of the triangle\n\t\t\t\t// the point lies in with the minimum amount of redundant computation.\n\n\t\t\t\tvab.subVectors( b, a );\n\t\t\t\tvac.subVectors( c, a );\n\t\t\t\tvap.subVectors( p, a );\n\t\t\t\tvar d1 = vab.dot( vap );\n\t\t\t\tvar d2 = vac.dot( vap );\n\t\t\t\tif ( d1 <= 0 && d2 <= 0 ) {\n\n\t\t\t\t\t// vertex region of A; barycentric coords (1, 0, 0)\n\t\t\t\t\treturn target.copy( a );\n\n\t\t\t\t}\n\n\t\t\t\tvbp.subVectors( p, b );\n\t\t\t\tvar d3 = vab.dot( vbp );\n\t\t\t\tvar d4 = vac.dot( vbp );\n\t\t\t\tif ( d3 >= 0 && d4 <= d3 ) {\n\n\t\t\t\t\t// vertex region of B; barycentric coords (0, 1, 0)\n\t\t\t\t\treturn target.copy( b );\n\n\t\t\t\t}\n\n\t\t\t\tvar vc = d1 * d4 - d3 * d2;\n\t\t\t\tif ( vc <= 0 && d1 >= 0 && d3 <= 0 ) {\n\n\t\t\t\t\tv = d1 / ( d1 - d3 );\n\t\t\t\t\t// edge region of AB; barycentric coords (1-v, v, 0)\n\t\t\t\t\treturn target.copy( a ).addScaledVector( vab, v );\n\n\t\t\t\t}\n\n\t\t\t\tvcp.subVectors( p, c );\n\t\t\t\tvar d5 = vab.dot( vcp );\n\t\t\t\tvar d6 = vac.dot( vcp );\n\t\t\t\tif ( d6 >= 0 && d5 <= d6 ) {\n\n\t\t\t\t\t// vertex region of C; barycentric coords (0, 0, 1)\n\t\t\t\t\treturn target.copy( c );\n\n\t\t\t\t}\n\n\t\t\t\tvar vb = d5 * d2 - d1 * d6;\n\t\t\t\tif ( vb <= 0 && d2 >= 0 && d6 <= 0 ) {\n\n\t\t\t\t\tw = d2 / ( d2 - d6 );\n\t\t\t\t\t// edge region of AC; barycentric coords (1-w, 0, w)\n\t\t\t\t\treturn target.copy( a ).addScaledVector( vac, w );\n\n\t\t\t\t}\n\n\t\t\t\tvar va = d3 * d6 - d5 * d4;\n\t\t\t\tif ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) {\n\n\t\t\t\t\tvbc.subVectors( c, b );\n\t\t\t\t\tw = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) );\n\t\t\t\t\t// edge region of BC; barycentric coords (0, 1-w, w)\n\t\t\t\t\treturn target.copy( b ).addScaledVector( vbc, w ); // edge region of BC\n\n\t\t\t\t}\n\n\t\t\t\t// face region\n\t\t\t\tvar denom = 1 / ( va + vb + vc );\n\t\t\t\t// u = va * denom\n\t\t\t\tv = vb * denom;\n\t\t\t\tw = vc * denom;\n\t\t\t\treturn target.copy( a ).addScaledVector( vab, v ).addScaledVector( vac, w );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tequals: function ( triangle ) {\n\n\t\t\treturn triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author jonobr1 / http://jonobr1.com/\n\t */\n\n\tfunction Mesh( geometry, material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Mesh';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );\n\n\t\tthis.drawMode = TrianglesDrawMode;\n\n\t\tthis.updateMorphTargets();\n\n\t}\n\n\tMesh.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Mesh,\n\n\t\tisMesh: true,\n\n\t\tsetDrawMode: function ( value ) {\n\n\t\t\tthis.drawMode = value;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.drawMode = source.drawMode;\n\n\t\t\tif ( source.morphTargetInfluences !== undefined ) {\n\n\t\t\t\tthis.morphTargetInfluences = source.morphTargetInfluences.slice();\n\n\t\t\t}\n\n\t\t\tif ( source.morphTargetDictionary !== undefined ) {\n\n\t\t\t\tthis.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateMorphTargets: function () {\n\n\t\t\tvar geometry = this.geometry;\n\t\t\tvar m, ml, name;\n\n\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\tvar morphAttributes = geometry.morphAttributes;\n\t\t\t\tvar keys = Object.keys( morphAttributes );\n\n\t\t\t\tif ( keys.length > 0 ) {\n\n\t\t\t\t\tvar morphAttribute = morphAttributes[ keys[ 0 ] ];\n\n\t\t\t\t\tif ( morphAttribute !== undefined ) {\n\n\t\t\t\t\t\tthis.morphTargetInfluences = [];\n\t\t\t\t\t\tthis.morphTargetDictionary = {};\n\n\t\t\t\t\t\tfor ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {\n\n\t\t\t\t\t\t\tname = morphAttribute[ m ].name || String( m );\n\n\t\t\t\t\t\t\tthis.morphTargetInfluences.push( 0 );\n\t\t\t\t\t\t\tthis.morphTargetDictionary[ name ] = m;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar morphTargets = geometry.morphTargets;\n\n\t\t\t\tif ( morphTargets !== undefined && morphTargets.length > 0 ) {\n\n\t\t\t\t\tthis.morphTargetInfluences = [];\n\t\t\t\t\tthis.morphTargetDictionary = {};\n\n\t\t\t\t\tfor ( m = 0, ml = morphTargets.length; m < ml; m ++ ) {\n\n\t\t\t\t\t\tname = morphTargets[ m ].name || String( m );\n\n\t\t\t\t\t\tthis.morphTargetInfluences.push( 0 );\n\t\t\t\t\t\tthis.morphTargetDictionary[ name ] = m;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\tvar vA = new Vector3();\n\t\t\tvar vB = new Vector3();\n\t\t\tvar vC = new Vector3();\n\n\t\t\tvar tempA = new Vector3();\n\t\t\tvar tempB = new Vector3();\n\t\t\tvar tempC = new Vector3();\n\n\t\t\tvar uvA = new Vector2();\n\t\t\tvar uvB = new Vector2();\n\t\t\tvar uvC = new Vector2();\n\n\t\t\tvar barycoord = new Vector3();\n\n\t\t\tvar intersectionPoint = new Vector3();\n\t\t\tvar intersectionPointWorld = new Vector3();\n\n\t\t\tfunction uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {\n\n\t\t\t\tTriangle.getBarycoord( point, p1, p2, p3, barycoord );\n\n\t\t\t\tuv1.multiplyScalar( barycoord.x );\n\t\t\t\tuv2.multiplyScalar( barycoord.y );\n\t\t\t\tuv3.multiplyScalar( barycoord.z );\n\n\t\t\t\tuv1.add( uv2 ).add( uv3 );\n\n\t\t\t\treturn uv1.clone();\n\n\t\t\t}\n\n\t\t\tfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\n\n\t\t\t\tvar intersect;\n\n\t\t\t\tif ( material.side === BackSide ) {\n\n\t\t\t\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\n\n\t\t\t\t}\n\n\t\t\t\tif ( intersect === null ) return null;\n\n\t\t\t\tintersectionPointWorld.copy( point );\n\t\t\t\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\n\n\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\n\n\t\t\t\treturn {\n\t\t\t\t\tdistance: distance,\n\t\t\t\t\tpoint: intersectionPointWorld.clone(),\n\t\t\t\t\tobject: object\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tfunction checkBufferGeometryIntersection( object, material, raycaster, ray, position, uv, a, b, c ) {\n\n\t\t\t\tvA.fromBufferAttribute( position, a );\n\t\t\t\tvB.fromBufferAttribute( position, b );\n\t\t\t\tvC.fromBufferAttribute( position, c );\n\n\t\t\t\tvar intersection = checkIntersection( object, material, raycaster, ray, vA, vB, vC, intersectionPoint );\n\n\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\tif ( uv ) {\n\n\t\t\t\t\t\tuvA.fromBufferAttribute( uv, a );\n\t\t\t\t\t\tuvB.fromBufferAttribute( uv, b );\n\t\t\t\t\t\tuvC.fromBufferAttribute( uv, c );\n\n\t\t\t\t\t\tintersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar face = new Face3( a, b, c );\n\t\t\t\t\tTriangle.getNormal( vA, vB, vC, face.normal );\n\n\t\t\t\t\tintersection.face = face;\n\n\t\t\t\t}\n\n\t\t\t\treturn intersection;\n\n\t\t\t}\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar material = this.material;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\n\t\t\t\tif ( material === undefined ) return;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\t// Check boundingBox before continuing\n\n\t\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\t\tif ( ray.intersectsBox( geometry.boundingBox ) === false ) return;\n\n\t\t\t\t}\n\n\t\t\t\tvar intersection;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\tvar a, b, c;\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar position = geometry.attributes.position;\n\t\t\t\t\tvar uv = geometry.attributes.uv;\n\t\t\t\t\tvar groups = geometry.groups;\n\t\t\t\t\tvar drawRange = geometry.drawRange;\n\t\t\t\t\tvar i, j, il, jl;\n\t\t\t\t\tvar group, groupMaterial;\n\t\t\t\t\tvar start, end;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\t// indexed buffer geometry\n\n\t\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\t\tfor ( i = 0, il = groups.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\t\tgroup = groups[ i ];\n\t\t\t\t\t\t\t\tgroupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\tstart = Math.max( group.start, drawRange.start );\n\t\t\t\t\t\t\t\tend = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\t\tfor ( j = start, jl = end; j < jl; j += 3 ) {\n\n\t\t\t\t\t\t\t\t\ta = index.getX( j );\n\t\t\t\t\t\t\t\t\tb = index.getX( j + 1 );\n\t\t\t\t\t\t\t\t\tc = index.getX( j + 2 );\n\n\t\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics\n\t\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tstart = Math.max( 0, drawRange.start );\n\t\t\t\t\t\t\tend = Math.min( index.count, ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\tfor ( i = start, il = end; i < il; i += 3 ) {\n\n\t\t\t\t\t\t\t\ta = index.getX( i );\n\t\t\t\t\t\t\t\tb = index.getX( i + 1 );\n\t\t\t\t\t\t\t\tc = index.getX( i + 2 );\n\n\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics\n\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( position !== undefined ) {\n\n\t\t\t\t\t\t// non-indexed buffer geometry\n\n\t\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\t\tfor ( i = 0, il = groups.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\t\tgroup = groups[ i ];\n\t\t\t\t\t\t\t\tgroupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\tstart = Math.max( group.start, drawRange.start );\n\t\t\t\t\t\t\t\tend = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\t\tfor ( j = start, jl = end; j < jl; j += 3 ) {\n\n\t\t\t\t\t\t\t\t\ta = j;\n\t\t\t\t\t\t\t\t\tb = j + 1;\n\t\t\t\t\t\t\t\t\tc = j + 2;\n\n\t\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics\n\t\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tstart = Math.max( 0, drawRange.start );\n\t\t\t\t\t\t\tend = Math.min( position.count, ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\tfor ( i = start, il = end; i < il; i += 3 ) {\n\n\t\t\t\t\t\t\t\ta = i;\n\t\t\t\t\t\t\t\tb = i + 1;\n\t\t\t\t\t\t\t\tc = i + 2;\n\n\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics\n\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar fvA, fvB, fvC;\n\t\t\t\t\tvar isMultiMaterial = Array.isArray( material );\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar faces = geometry.faces;\n\t\t\t\t\tvar uvs;\n\n\t\t\t\t\tvar faceVertexUvs = geometry.faceVertexUvs[ 0 ];\n\t\t\t\t\tif ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;\n\n\t\t\t\t\tfor ( var f = 0, fl = faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\t\tvar face = faces[ f ];\n\t\t\t\t\t\tvar faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;\n\n\t\t\t\t\t\tif ( faceMaterial === undefined ) continue;\n\n\t\t\t\t\t\tfvA = vertices[ face.a ];\n\t\t\t\t\t\tfvB = vertices[ face.b ];\n\t\t\t\t\t\tfvC = vertices[ face.c ];\n\n\t\t\t\t\t\tif ( faceMaterial.morphTargets === true ) {\n\n\t\t\t\t\t\t\tvar morphTargets = geometry.morphTargets;\n\t\t\t\t\t\t\tvar morphInfluences = this.morphTargetInfluences;\n\n\t\t\t\t\t\t\tvA.set( 0, 0, 0 );\n\t\t\t\t\t\t\tvB.set( 0, 0, 0 );\n\t\t\t\t\t\t\tvC.set( 0, 0, 0 );\n\n\t\t\t\t\t\t\tfor ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {\n\n\t\t\t\t\t\t\t\tvar influence = morphInfluences[ t ];\n\n\t\t\t\t\t\t\t\tif ( influence === 0 ) continue;\n\n\t\t\t\t\t\t\t\tvar targets = morphTargets[ t ].vertices;\n\n\t\t\t\t\t\t\t\tvA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );\n\t\t\t\t\t\t\t\tvB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );\n\t\t\t\t\t\t\t\tvC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tvA.add( fvA );\n\t\t\t\t\t\t\tvB.add( fvB );\n\t\t\t\t\t\t\tvC.add( fvC );\n\n\t\t\t\t\t\t\tfvA = vA;\n\t\t\t\t\t\t\tfvB = vB;\n\t\t\t\t\t\t\tfvC = vC;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tintersection = checkIntersection( this, faceMaterial, raycaster, ray, fvA, fvB, fvC, intersectionPoint );\n\n\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\tif ( uvs && uvs[ f ] ) {\n\n\t\t\t\t\t\t\t\tvar uvs_f = uvs[ f ];\n\t\t\t\t\t\t\t\tuvA.copy( uvs_f[ 0 ] );\n\t\t\t\t\t\t\t\tuvB.copy( uvs_f[ 1 ] );\n\t\t\t\t\t\t\t\tuvC.copy( uvs_f[ 2 ] );\n\n\t\t\t\t\t\t\t\tintersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tintersection.face = face;\n\t\t\t\t\t\t\tintersection.faceIndex = f;\n\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLBackground( renderer, state, objects, premultipliedAlpha ) {\n\n\t\tvar clearColor = new Color( 0x000000 );\n\t\tvar clearAlpha = 0;\n\n\t\tvar planeCamera, planeMesh;\n\t\tvar boxMesh;\n\n\t\tfunction render( renderList, scene, camera, forceClear ) {\n\n\t\t\tvar background = scene.background;\n\n\t\t\tif ( background === null ) {\n\n\t\t\t\tsetClear( clearColor, clearAlpha );\n\n\t\t\t} else if ( background && background.isColor ) {\n\n\t\t\t\tsetClear( background, 1 );\n\t\t\t\tforceClear = true;\n\n\t\t\t}\n\n\t\t\tif ( renderer.autoClear || forceClear ) {\n\n\t\t\t\trenderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );\n\n\t\t\t}\n\n\t\t\tif ( background && background.isCubeTexture ) {\n\n\t\t\t\tif ( boxMesh === undefined ) {\n\n\t\t\t\t\tboxMesh = new Mesh(\n\t\t\t\t\t\tnew BoxBufferGeometry( 1, 1, 1 ),\n\t\t\t\t\t\tnew ShaderMaterial( {\n\t\t\t\t\t\t\tuniforms: ShaderLib.cube.uniforms,\n\t\t\t\t\t\t\tvertexShader: ShaderLib.cube.vertexShader,\n\t\t\t\t\t\t\tfragmentShader: ShaderLib.cube.fragmentShader,\n\t\t\t\t\t\t\tside: BackSide,\n\t\t\t\t\t\t\tdepthTest: true,\n\t\t\t\t\t\t\tdepthWrite: false,\n\t\t\t\t\t\t\tfog: false\n\t\t\t\t\t\t} )\n\t\t\t\t\t);\n\n\t\t\t\t\tboxMesh.geometry.removeAttribute( 'normal' );\n\t\t\t\t\tboxMesh.geometry.removeAttribute( 'uv' );\n\n\t\t\t\t\tboxMesh.onBeforeRender = function ( renderer, scene, camera ) {\n\n\t\t\t\t\t\tthis.matrixWorld.copyPosition( camera.matrixWorld );\n\n\t\t\t\t\t};\n\n\t\t\t\t\tobjects.update( boxMesh );\n\n\t\t\t\t}\n\n\t\t\t\tboxMesh.material.uniforms.tCube.value = background;\n\n\t\t\t\trenderList.push( boxMesh, boxMesh.geometry, boxMesh.material, 0, null );\n\n\t\t\t} else if ( background && background.isTexture ) {\n\n\t\t\t\tif ( planeCamera === undefined ) {\n\n\t\t\t\t\tplaneCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );\n\n\t\t\t\t\tplaneMesh = new Mesh(\n\t\t\t\t\t\tnew PlaneBufferGeometry( 2, 2 ),\n\t\t\t\t\t\tnew MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } )\n\t\t\t\t\t);\n\n\t\t\t\t\tobjects.update( planeMesh );\n\n\t\t\t\t}\n\n\t\t\t\tplaneMesh.material.map = background;\n\n\t\t\t\t// TODO Push this to renderList\n\n\t\t\t\trenderer.renderBufferDirect( planeCamera, null, planeMesh.geometry, planeMesh.material, planeMesh, null );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setClear( color, alpha ) {\n\n\t\t\tstate.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tgetClearColor: function () {\n\n\t\t\t\treturn clearColor;\n\n\t\t\t},\n\t\t\tsetClearColor: function ( color, alpha ) {\n\n\t\t\t\tclearColor.set( color );\n\t\t\t\tclearAlpha = alpha !== undefined ? alpha : 1;\n\t\t\t\tsetClear( clearColor, clearAlpha );\n\n\t\t\t},\n\t\t\tgetClearAlpha: function () {\n\n\t\t\t\treturn clearAlpha;\n\n\t\t\t},\n\t\t\tsetClearAlpha: function ( alpha ) {\n\n\t\t\t\tclearAlpha = alpha;\n\t\t\t\tsetClear( clearColor, clearAlpha );\n\n\t\t\t},\n\t\t\trender: render\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLBufferRenderer( gl, extensions, info, capabilities ) {\n\n\t\tvar mode;\n\n\t\tfunction setMode( value ) {\n\n\t\t\tmode = value;\n\n\t\t}\n\n\t\tfunction render( start, count ) {\n\n\t\t\tgl.drawArrays( mode, start, count );\n\n\t\t\tinfo.update( count, mode );\n\n\t\t}\n\n\t\tfunction renderInstances( geometry, start, count ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( capabilities.isWebGL2 ) {\n\n\t\t\t\textension = gl;\n\n\t\t\t} else {\n\n\t\t\t\textension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\textension[ capabilities.isWebGL2 ? 'drawArraysInstanced' : 'drawArraysInstancedANGLE' ]( mode, start, count, geometry.maxInstancedCount );\n\n\t\t\tinfo.update( count, mode, geometry.maxInstancedCount );\n\n\t\t}\n\n\t\t//\n\n\t\tthis.setMode = setMode;\n\t\tthis.render = render;\n\t\tthis.renderInstances = renderInstances;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLCapabilities( gl, extensions, parameters ) {\n\n\t\tvar maxAnisotropy;\n\n\t\tfunction getMaxAnisotropy() {\n\n\t\t\tif ( maxAnisotropy !== undefined ) return maxAnisotropy;\n\n\t\t\tvar extension = extensions.get( 'EXT_texture_filter_anisotropic' );\n\n\t\t\tif ( extension !== null ) {\n\n\t\t\t\tmaxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );\n\n\t\t\t} else {\n\n\t\t\t\tmaxAnisotropy = 0;\n\n\t\t\t}\n\n\t\t\treturn maxAnisotropy;\n\n\t\t}\n\n\t\tfunction getMaxPrecision( precision ) {\n\n\t\t\tif ( precision === 'highp' ) {\n\n\t\t\t\tif ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&\n\t\t\t\t gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {\n\n\t\t\t\t\treturn 'highp';\n\n\t\t\t\t}\n\n\t\t\t\tprecision = 'mediump';\n\n\t\t\t}\n\n\t\t\tif ( precision === 'mediump' ) {\n\n\t\t\t\tif ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&\n\t\t\t\t gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {\n\n\t\t\t\t\treturn 'mediump';\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn 'lowp';\n\n\t\t}\n\n\t\tvar isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext;\n\n\t\tvar precision = parameters.precision !== undefined ? parameters.precision : 'highp';\n\t\tvar maxPrecision = getMaxPrecision( precision );\n\n\t\tif ( maxPrecision !== precision ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );\n\t\t\tprecision = maxPrecision;\n\n\t\t}\n\n\t\tvar logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;\n\n\t\tvar maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );\n\t\tvar maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );\n\t\tvar maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );\n\t\tvar maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );\n\n\t\tvar maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );\n\t\tvar maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );\n\t\tvar maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );\n\t\tvar maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );\n\n\t\tvar vertexTextures = maxVertexTextures > 0;\n\t\tvar floatFragmentTextures = isWebGL2 || !! extensions.get( 'OES_texture_float' );\n\t\tvar floatVertexTextures = vertexTextures && floatFragmentTextures;\n\n\t\treturn {\n\n\t\t\tisWebGL2: isWebGL2,\n\n\t\t\tgetMaxAnisotropy: getMaxAnisotropy,\n\t\t\tgetMaxPrecision: getMaxPrecision,\n\n\t\t\tprecision: precision,\n\t\t\tlogarithmicDepthBuffer: logarithmicDepthBuffer,\n\n\t\t\tmaxTextures: maxTextures,\n\t\t\tmaxVertexTextures: maxVertexTextures,\n\t\t\tmaxTextureSize: maxTextureSize,\n\t\t\tmaxCubemapSize: maxCubemapSize,\n\n\t\t\tmaxAttributes: maxAttributes,\n\t\t\tmaxVertexUniforms: maxVertexUniforms,\n\t\t\tmaxVaryings: maxVaryings,\n\t\t\tmaxFragmentUniforms: maxFragmentUniforms,\n\n\t\t\tvertexTextures: vertexTextures,\n\t\t\tfloatFragmentTextures: floatFragmentTextures,\n\t\t\tfloatVertexTextures: floatVertexTextures\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author tschw\n\t */\n\n\tfunction WebGLClipping() {\n\n\t\tvar scope = this,\n\n\t\t\tglobalState = null,\n\t\t\tnumGlobalPlanes = 0,\n\t\t\tlocalClippingEnabled = false,\n\t\t\trenderingShadows = false,\n\n\t\t\tplane = new Plane(),\n\t\t\tviewNormalMatrix = new Matrix3(),\n\n\t\t\tuniform = { value: null, needsUpdate: false };\n\n\t\tthis.uniform = uniform;\n\t\tthis.numPlanes = 0;\n\t\tthis.numIntersection = 0;\n\n\t\tthis.init = function ( planes, enableLocalClipping, camera ) {\n\n\t\t\tvar enabled =\n\t\t\t\tplanes.length !== 0 ||\n\t\t\t\tenableLocalClipping ||\n\t\t\t\t// enable state of previous frame - the clipping code has to\n\t\t\t\t// run another frame in order to reset the state:\n\t\t\t\tnumGlobalPlanes !== 0 ||\n\t\t\t\tlocalClippingEnabled;\n\n\t\t\tlocalClippingEnabled = enableLocalClipping;\n\n\t\t\tglobalState = projectPlanes( planes, camera, 0 );\n\t\t\tnumGlobalPlanes = planes.length;\n\n\t\t\treturn enabled;\n\n\t\t};\n\n\t\tthis.beginShadows = function () {\n\n\t\t\trenderingShadows = true;\n\t\t\tprojectPlanes( null );\n\n\t\t};\n\n\t\tthis.endShadows = function () {\n\n\t\t\trenderingShadows = false;\n\t\t\tresetGlobalState();\n\n\t\t};\n\n\t\tthis.setState = function ( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {\n\n\t\t\tif ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {\n\n\t\t\t\t// there's no local clipping\n\n\t\t\t\tif ( renderingShadows ) {\n\n\t\t\t\t\t// there's no global clipping\n\n\t\t\t\t\tprojectPlanes( null );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tresetGlobalState();\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar nGlobal = renderingShadows ? 0 : numGlobalPlanes,\n\t\t\t\t\tlGlobal = nGlobal * 4,\n\n\t\t\t\t\tdstArray = cache.clippingState || null;\n\n\t\t\t\tuniform.value = dstArray; // ensure unique state\n\n\t\t\t\tdstArray = projectPlanes( planes, camera, lGlobal, fromCache );\n\n\t\t\t\tfor ( var i = 0; i !== lGlobal; ++ i ) {\n\n\t\t\t\t\tdstArray[ i ] = globalState[ i ];\n\n\t\t\t\t}\n\n\t\t\t\tcache.clippingState = dstArray;\n\t\t\t\tthis.numIntersection = clipIntersection ? this.numPlanes : 0;\n\t\t\t\tthis.numPlanes += nGlobal;\n\n\t\t\t}\n\n\n\t\t};\n\n\t\tfunction resetGlobalState() {\n\n\t\t\tif ( uniform.value !== globalState ) {\n\n\t\t\t\tuniform.value = globalState;\n\t\t\t\tuniform.needsUpdate = numGlobalPlanes > 0;\n\n\t\t\t}\n\n\t\t\tscope.numPlanes = numGlobalPlanes;\n\t\t\tscope.numIntersection = 0;\n\n\t\t}\n\n\t\tfunction projectPlanes( planes, camera, dstOffset, skipTransform ) {\n\n\t\t\tvar nPlanes = planes !== null ? planes.length : 0,\n\t\t\t\tdstArray = null;\n\n\t\t\tif ( nPlanes !== 0 ) {\n\n\t\t\t\tdstArray = uniform.value;\n\n\t\t\t\tif ( skipTransform !== true || dstArray === null ) {\n\n\t\t\t\t\tvar flatSize = dstOffset + nPlanes * 4,\n\t\t\t\t\t\tviewMatrix = camera.matrixWorldInverse;\n\n\t\t\t\t\tviewNormalMatrix.getNormalMatrix( viewMatrix );\n\n\t\t\t\t\tif ( dstArray === null || dstArray.length < flatSize ) {\n\n\t\t\t\t\t\tdstArray = new Float32Array( flatSize );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( var i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {\n\n\t\t\t\t\t\tplane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );\n\n\t\t\t\t\t\tplane.normal.toArray( dstArray, i4 );\n\t\t\t\t\t\tdstArray[ i4 + 3 ] = plane.constant;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tuniform.value = dstArray;\n\t\t\t\tuniform.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tscope.numPlanes = nPlanes;\n\n\t\t\treturn dstArray;\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLExtensions( gl ) {\n\n\t\tvar extensions = {};\n\n\t\treturn {\n\n\t\t\tget: function ( name ) {\n\n\t\t\t\tif ( extensions[ name ] !== undefined ) {\n\n\t\t\t\t\treturn extensions[ name ];\n\n\t\t\t\t}\n\n\t\t\t\tvar extension;\n\n\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\tcase 'WEBGL_depth_texture':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'EXT_texture_filter_anisotropic':\n\t\t\t\t\t\textension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'WEBGL_compressed_texture_s3tc':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'WEBGL_compressed_texture_pvrtc':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\textension = gl.getExtension( name );\n\n\t\t\t\t}\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );\n\n\t\t\t\t}\n\n\t\t\t\textensions[ name ] = extension;\n\n\t\t\t\treturn extension;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLGeometries( gl, attributes, info ) {\n\n\t\tvar geometries = {};\n\t\tvar wireframeAttributes = {};\n\n\t\tfunction onGeometryDispose( event ) {\n\n\t\t\tvar geometry = event.target;\n\t\t\tvar buffergeometry = geometries[ geometry.id ];\n\n\t\t\tif ( buffergeometry.index !== null ) {\n\n\t\t\t\tattributes.remove( buffergeometry.index );\n\n\t\t\t}\n\n\t\t\tfor ( var name in buffergeometry.attributes ) {\n\n\t\t\t\tattributes.remove( buffergeometry.attributes[ name ] );\n\n\t\t\t}\n\n\t\t\tgeometry.removeEventListener( 'dispose', onGeometryDispose );\n\n\t\t\tdelete geometries[ geometry.id ];\n\n\t\t\tvar attribute = wireframeAttributes[ buffergeometry.id ];\n\n\t\t\tif ( attribute ) {\n\n\t\t\t\tattributes.remove( attribute );\n\t\t\t\tdelete wireframeAttributes[ buffergeometry.id ];\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tinfo.memory.geometries --;\n\n\t\t}\n\n\t\tfunction get( object, geometry ) {\n\n\t\t\tvar buffergeometry = geometries[ geometry.id ];\n\n\t\t\tif ( buffergeometry ) return buffergeometry;\n\n\t\t\tgeometry.addEventListener( 'dispose', onGeometryDispose );\n\n\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\tbuffergeometry = geometry;\n\n\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\tif ( geometry._bufferGeometry === undefined ) {\n\n\t\t\t\t\tgeometry._bufferGeometry = new BufferGeometry().setFromObject( object );\n\n\t\t\t\t}\n\n\t\t\t\tbuffergeometry = geometry._bufferGeometry;\n\n\t\t\t}\n\n\t\t\tgeometries[ geometry.id ] = buffergeometry;\n\n\t\t\tinfo.memory.geometries ++;\n\n\t\t\treturn buffergeometry;\n\n\t\t}\n\n\t\tfunction update( geometry ) {\n\n\t\t\tvar index = geometry.index;\n\t\t\tvar geometryAttributes = geometry.attributes;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tattributes.update( index, gl.ELEMENT_ARRAY_BUFFER );\n\n\t\t\t}\n\n\t\t\tfor ( var name in geometryAttributes ) {\n\n\t\t\t\tattributes.update( geometryAttributes[ name ], gl.ARRAY_BUFFER );\n\n\t\t\t}\n\n\t\t\t// morph targets\n\n\t\t\tvar morphAttributes = geometry.morphAttributes;\n\n\t\t\tfor ( var name in morphAttributes ) {\n\n\t\t\t\tvar array = morphAttributes[ name ];\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i ++ ) {\n\n\t\t\t\t\tattributes.update( array[ i ], gl.ARRAY_BUFFER );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getWireframeAttribute( geometry ) {\n\n\t\t\tvar attribute = wireframeAttributes[ geometry.id ];\n\n\t\t\tif ( attribute ) return attribute;\n\n\t\t\tvar indices = [];\n\n\t\t\tvar geometryIndex = geometry.index;\n\t\t\tvar geometryAttributes = geometry.attributes;\n\n\t\t\t// console.time( 'wireframe' );\n\n\t\t\tif ( geometryIndex !== null ) {\n\n\t\t\t\tvar array = geometryIndex.array;\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i += 3 ) {\n\n\t\t\t\t\tvar a = array[ i + 0 ];\n\t\t\t\t\tvar b = array[ i + 1 ];\n\t\t\t\t\tvar c = array[ i + 2 ];\n\n\t\t\t\t\tindices.push( a, b, b, c, c, a );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar array = geometryAttributes.position.array;\n\n\t\t\t\tfor ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {\n\n\t\t\t\t\tvar a = i + 0;\n\t\t\t\t\tvar b = i + 1;\n\t\t\t\t\tvar c = i + 2;\n\n\t\t\t\t\tindices.push( a, b, b, c, c, a );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// console.timeEnd( 'wireframe' );\n\n\t\t\tattribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );\n\n\t\t\tattributes.update( attribute, gl.ELEMENT_ARRAY_BUFFER );\n\n\t\t\twireframeAttributes[ geometry.id ] = attribute;\n\n\t\t\treturn attribute;\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tget: get,\n\t\t\tupdate: update,\n\n\t\t\tgetWireframeAttribute: getWireframeAttribute\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) {\n\n\t\tvar mode;\n\n\t\tfunction setMode( value ) {\n\n\t\t\tmode = value;\n\n\t\t}\n\n\t\tvar type, bytesPerElement;\n\n\t\tfunction setIndex( value ) {\n\n\t\t\ttype = value.type;\n\t\t\tbytesPerElement = value.bytesPerElement;\n\n\t\t}\n\n\t\tfunction render( start, count ) {\n\n\t\t\tgl.drawElements( mode, count, type, start * bytesPerElement );\n\n\t\t\tinfo.update( count, mode );\n\n\t\t}\n\n\t\tfunction renderInstances( geometry, start, count ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( capabilities.isWebGL2 ) {\n\n\t\t\t\textension = gl;\n\n\t\t\t} else {\n\n\t\t\t\tvar extension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\textension[ capabilities.isWebGL2 ? 'drawElementsInstanced' : 'drawElementsInstancedANGLE' ]( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );\n\n\t\t\tinfo.update( count, mode, geometry.maxInstancedCount );\n\n\t\t}\n\n\t\t//\n\n\t\tthis.setMode = setMode;\n\t\tthis.setIndex = setIndex;\n\t\tthis.render = render;\n\t\tthis.renderInstances = renderInstances;\n\n\t}\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction WebGLInfo( gl ) {\n\n\t\tvar memory = {\n\t\t\tgeometries: 0,\n\t\t\ttextures: 0\n\t\t};\n\n\t\tvar render = {\n\t\t\tframe: 0,\n\t\t\tcalls: 0,\n\t\t\ttriangles: 0,\n\t\t\tpoints: 0,\n\t\t\tlines: 0\n\t\t};\n\n\t\tfunction update( count, mode, instanceCount ) {\n\n\t\t\tinstanceCount = instanceCount || 1;\n\n\t\t\trender.calls ++;\n\n\t\t\tswitch ( mode ) {\n\n\t\t\t\tcase gl.TRIANGLES:\n\t\t\t\t\trender.triangles += instanceCount * ( count / 3 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.TRIANGLE_STRIP:\n\t\t\t\tcase gl.TRIANGLE_FAN:\n\t\t\t\t\trender.triangles += instanceCount * ( count - 2 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.LINES:\n\t\t\t\t\trender.lines += instanceCount * ( count / 2 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.LINE_STRIP:\n\t\t\t\t\trender.lines += instanceCount * ( count - 1 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.LINE_LOOP:\n\t\t\t\t\trender.lines += instanceCount * count;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.POINTS:\n\t\t\t\t\trender.points += instanceCount * count;\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tconsole.error( 'THREE.WebGLInfo: Unknown draw mode:', mode );\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction reset() {\n\n\t\t\trender.frame ++;\n\t\t\trender.calls = 0;\n\t\t\trender.triangles = 0;\n\t\t\trender.points = 0;\n\t\t\trender.lines = 0;\n\n\t\t}\n\n\t\treturn {\n\t\t\tmemory: memory,\n\t\t\trender: render,\n\t\t\tprograms: null,\n\t\t\tautoReset: true,\n\t\t\treset: reset,\n\t\t\tupdate: update\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction absNumericalSort( a, b ) {\n\n\t\treturn Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );\n\n\t}\n\n\tfunction WebGLMorphtargets( gl ) {\n\n\t\tvar influencesList = {};\n\t\tvar morphInfluences = new Float32Array( 8 );\n\n\t\tfunction update( object, geometry, material, program ) {\n\n\t\t\tvar objectInfluences = object.morphTargetInfluences;\n\n\t\t\tvar length = objectInfluences.length;\n\n\t\t\tvar influences = influencesList[ geometry.id ];\n\n\t\t\tif ( influences === undefined ) {\n\n\t\t\t\t// initialise list\n\n\t\t\t\tinfluences = [];\n\n\t\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\t\tinfluences[ i ] = [ i, 0 ];\n\n\t\t\t\t}\n\n\t\t\t\tinfluencesList[ geometry.id ] = influences;\n\n\t\t\t}\n\n\t\t\tvar morphTargets = material.morphTargets && geometry.morphAttributes.position;\n\t\t\tvar morphNormals = material.morphNormals && geometry.morphAttributes.normal;\n\n\t\t\t// Remove current morphAttributes\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tvar influence = influences[ i ];\n\n\t\t\t\tif ( influence[ 1 ] !== 0 ) {\n\n\t\t\t\t\tif ( morphTargets ) geometry.removeAttribute( 'morphTarget' + i );\n\t\t\t\t\tif ( morphNormals ) geometry.removeAttribute( 'morphNormal' + i );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Collect influences\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tvar influence = influences[ i ];\n\n\t\t\t\tinfluence[ 0 ] = i;\n\t\t\t\tinfluence[ 1 ] = objectInfluences[ i ];\n\n\t\t\t}\n\n\t\t\tinfluences.sort( absNumericalSort );\n\n\t\t\t// Add morphAttributes\n\n\t\t\tfor ( var i = 0; i < 8; i ++ ) {\n\n\t\t\t\tvar influence = influences[ i ];\n\n\t\t\t\tif ( influence ) {\n\n\t\t\t\t\tvar index = influence[ 0 ];\n\t\t\t\t\tvar value = influence[ 1 ];\n\n\t\t\t\t\tif ( value ) {\n\n\t\t\t\t\t\tif ( morphTargets ) geometry.addAttribute( 'morphTarget' + i, morphTargets[ index ] );\n\t\t\t\t\t\tif ( morphNormals ) geometry.addAttribute( 'morphNormal' + i, morphNormals[ index ] );\n\n\t\t\t\t\t\tmorphInfluences[ i ] = value;\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tmorphInfluences[ i ] = 0;\n\n\t\t\t}\n\n\t\t\tprogram.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tupdate: update\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLObjects( geometries, info ) {\n\n\t\tvar updateList = {};\n\n\t\tfunction update( object ) {\n\n\t\t\tvar frame = info.render.frame;\n\n\t\t\tvar geometry = object.geometry;\n\t\t\tvar buffergeometry = geometries.get( object, geometry );\n\n\t\t\t// Update once per frame\n\n\t\t\tif ( updateList[ buffergeometry.id ] !== frame ) {\n\n\t\t\t\tif ( geometry.isGeometry ) {\n\n\t\t\t\t\tbuffergeometry.updateFromObject( object );\n\n\t\t\t\t}\n\n\t\t\t\tgeometries.update( buffergeometry );\n\n\t\t\t\tupdateList[ buffergeometry.id ] = frame;\n\n\t\t\t}\n\n\t\t\treturn buffergeometry;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\tupdateList = {};\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tupdate: update,\n\t\t\tdispose: dispose\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {\n\n\t\timages = images !== undefined ? images : [];\n\t\tmapping = mapping !== undefined ? mapping : CubeReflectionMapping;\n\n\t\tTexture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.flipY = false;\n\n\t}\n\n\tCubeTexture.prototype = Object.create( Texture.prototype );\n\tCubeTexture.prototype.constructor = CubeTexture;\n\n\tCubeTexture.prototype.isCubeTexture = true;\n\n\tObject.defineProperty( CubeTexture.prototype, 'images', {\n\n\t\tget: function () {\n\n\t\t\treturn this.image;\n\n\t\t},\n\n\t\tset: function ( value ) {\n\n\t\t\tthis.image = value;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t * @author Mugen87 / https://github.com/Mugen87\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * Uniforms of a program.\n\t * Those form a tree structure with a special top-level container for the root,\n\t * which you get by calling 'new WebGLUniforms( gl, program, renderer )'.\n\t *\n\t *\n\t * Properties of inner nodes including the top-level container:\n\t *\n\t * .seq - array of nested uniforms\n\t * .map - nested uniforms by name\n\t *\n\t *\n\t * Methods of all nodes except the top-level container:\n\t *\n\t * .setValue( gl, value, [renderer] )\n\t *\n\t * \t\tuploads a uniform value(s)\n\t * \tthe 'renderer' parameter is needed for sampler uniforms\n\t *\n\t *\n\t * Static methods of the top-level container (renderer factorizations):\n\t *\n\t * .upload( gl, seq, values, renderer )\n\t *\n\t * \t\tsets uniforms in 'seq' to 'values[id].value'\n\t *\n\t * .seqWithValue( seq, values ) : filteredSeq\n\t *\n\t * \t\tfilters 'seq' entries with corresponding entry in values\n\t *\n\t *\n\t * Methods of the top-level container (renderer factorizations):\n\t *\n\t * .setValue( gl, name, value )\n\t *\n\t * \t\tsets uniform with name 'name' to 'value'\n\t *\n\t * .set( gl, obj, prop )\n\t *\n\t * \t\tsets uniform from object and property with same name than uniform\n\t *\n\t * .setOptional( gl, obj, prop )\n\t *\n\t * \t\tlike .set for an optional property of the object\n\t *\n\t */\n\n\tvar emptyTexture = new Texture();\n\tvar emptyCubeTexture = new CubeTexture();\n\n\t// --- Base for inner nodes (including the root) ---\n\n\tfunction UniformContainer() {\n\n\t\tthis.seq = [];\n\t\tthis.map = {};\n\n\t}\n\n\t// --- Utilities ---\n\n\t// Array Caches (provide typed arrays for temporary by size)\n\n\tvar arrayCacheF32 = [];\n\tvar arrayCacheI32 = [];\n\n\t// Float32Array caches used for uploading Matrix uniforms\n\n\tvar mat4array = new Float32Array( 16 );\n\tvar mat3array = new Float32Array( 9 );\n\tvar mat2array = new Float32Array( 4 );\n\n\t// Flattening for arrays of vectors and matrices\n\n\tfunction flatten( array, nBlocks, blockSize ) {\n\n\t\tvar firstElem = array[ 0 ];\n\n\t\tif ( firstElem <= 0 || firstElem > 0 ) return array;\n\t\t// unoptimized: ! isNaN( firstElem )\n\t\t// see http://jacksondunstan.com/articles/983\n\n\t\tvar n = nBlocks * blockSize,\n\t\t\tr = arrayCacheF32[ n ];\n\n\t\tif ( r === undefined ) {\n\n\t\t\tr = new Float32Array( n );\n\t\t\tarrayCacheF32[ n ] = r;\n\n\t\t}\n\n\t\tif ( nBlocks !== 0 ) {\n\n\t\t\tfirstElem.toArray( r, 0 );\n\n\t\t\tfor ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {\n\n\t\t\t\toffset += blockSize;\n\t\t\t\tarray[ i ].toArray( r, offset );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn r;\n\n\t}\n\n\tfunction arraysEqual( a, b ) {\n\n\t\tif ( a.length !== b.length ) return false;\n\n\t\tfor ( var i = 0, l = a.length; i < l; i ++ ) {\n\n\t\t\tif ( a[ i ] !== b[ i ] ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\tfunction copyArray( a, b ) {\n\n\t\tfor ( var i = 0, l = b.length; i < l; i ++ ) {\n\n\t\t\ta[ i ] = b[ i ];\n\n\t\t}\n\n\t}\n\n\t// Texture unit allocation\n\n\tfunction allocTexUnits( renderer, n ) {\n\n\t\tvar r = arrayCacheI32[ n ];\n\n\t\tif ( r === undefined ) {\n\n\t\t\tr = new Int32Array( n );\n\t\t\tarrayCacheI32[ n ] = r;\n\n\t\t}\n\n\t\tfor ( var i = 0; i !== n; ++ i )\n\t\t\tr[ i ] = renderer.allocTextureUnit();\n\n\t\treturn r;\n\n\t}\n\n\t// --- Setters ---\n\n\t// Note: Defining these methods externally, because they come in a bunch\n\t// and this way their names minify.\n\n\t// Single scalar\n\n\tfunction setValue1f( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( cache[ 0 ] === v ) return;\n\n\t\tgl.uniform1f( this.addr, v );\n\n\t\tcache[ 0 ] = v;\n\n\t}\n\n\tfunction setValue1i( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( cache[ 0 ] === v ) return;\n\n\t\tgl.uniform1i( this.addr, v );\n\n\t\tcache[ 0 ] = v;\n\n\t}\n\n\t// Single float vector (from flat array or THREE.VectorN)\n\n\tfunction setValue2fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( v.x !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) {\n\n\t\t\t\tgl.uniform2f( this.addr, v.x, v.y );\n\n\t\t\t\tcache[ 0 ] = v.x;\n\t\t\t\tcache[ 1 ] = v.y;\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniform2fv( this.addr, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t}\n\n\t}\n\n\tfunction setValue3fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( v.x !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) {\n\n\t\t\t\tgl.uniform3f( this.addr, v.x, v.y, v.z );\n\n\t\t\t\tcache[ 0 ] = v.x;\n\t\t\t\tcache[ 1 ] = v.y;\n\t\t\t\tcache[ 2 ] = v.z;\n\n\t\t\t}\n\n\t\t} else if ( v.r !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) {\n\n\t\t\t\tgl.uniform3f( this.addr, v.r, v.g, v.b );\n\n\t\t\t\tcache[ 0 ] = v.r;\n\t\t\t\tcache[ 1 ] = v.g;\n\t\t\t\tcache[ 2 ] = v.b;\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniform3fv( this.addr, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t}\n\n\t}\n\n\tfunction setValue4fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( v.x !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) {\n\n\t\t\t\tgl.uniform4f( this.addr, v.x, v.y, v.z, v.w );\n\n\t\t\t\tcache[ 0 ] = v.x;\n\t\t\t\tcache[ 1 ] = v.y;\n\t\t\t\tcache[ 2 ] = v.z;\n\t\t\t\tcache[ 3 ] = v.w;\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniform4fv( this.addr, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t}\n\n\t}\n\n\t// Single matrix (from flat array or MatrixN)\n\n\tfunction setValue2fm( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar elements = v.elements;\n\n\t\tif ( elements === undefined ) {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniformMatrix2fv( this.addr, false, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, elements ) ) return;\n\n\t\t\tmat2array.set( elements );\n\n\t\t\tgl.uniformMatrix2fv( this.addr, false, mat2array );\n\n\t\t\tcopyArray( cache, elements );\n\n\t\t}\n\n\t}\n\n\tfunction setValue3fm( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar elements = v.elements;\n\n\t\tif ( elements === undefined ) {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniformMatrix3fv( this.addr, false, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, elements ) ) return;\n\n\t\t\tmat3array.set( elements );\n\n\t\t\tgl.uniformMatrix3fv( this.addr, false, mat3array );\n\n\t\t\tcopyArray( cache, elements );\n\n\t\t}\n\n\t}\n\n\tfunction setValue4fm( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar elements = v.elements;\n\n\t\tif ( elements === undefined ) {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniformMatrix4fv( this.addr, false, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, elements ) ) return;\n\n\t\t\tmat4array.set( elements );\n\n\t\t\tgl.uniformMatrix4fv( this.addr, false, mat4array );\n\n\t\t\tcopyArray( cache, elements );\n\n\t\t}\n\n\t}\n\n\t// Single texture (2D / Cube)\n\n\tfunction setValueT1( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar unit = renderer.allocTextureUnit();\n\n\t\tif ( cache[ 0 ] !== unit ) {\n\n\t\t\tgl.uniform1i( this.addr, unit );\n\t\t\tcache[ 0 ] = unit;\n\n\t\t}\n\n\t\trenderer.setTexture2D( v || emptyTexture, unit );\n\n\t}\n\n\tfunction setValueT6( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar unit = renderer.allocTextureUnit();\n\n\t\tif ( cache[ 0 ] !== unit ) {\n\n\t\t\tgl.uniform1i( this.addr, unit );\n\t\t\tcache[ 0 ] = unit;\n\n\t\t}\n\n\t\trenderer.setTextureCube( v || emptyCubeTexture, unit );\n\n\t}\n\n\t// Integer / Boolean vectors or arrays thereof (always flat arrays)\n\n\tfunction setValue2iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform2iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\tfunction setValue3iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform3iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\tfunction setValue4iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform4iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\t// Helper to pick the right setter for the singular case\n\n\tfunction getSingularSetter( type ) {\n\n\t\tswitch ( type ) {\n\n\t\t\tcase 0x1406: return setValue1f; // FLOAT\n\t\t\tcase 0x8b50: return setValue2fv; // _VEC2\n\t\t\tcase 0x8b51: return setValue3fv; // _VEC3\n\t\t\tcase 0x8b52: return setValue4fv; // _VEC4\n\n\t\t\tcase 0x8b5a: return setValue2fm; // _MAT2\n\t\t\tcase 0x8b5b: return setValue3fm; // _MAT3\n\t\t\tcase 0x8b5c: return setValue4fm; // _MAT4\n\n\t\t\tcase 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES\n\t\t\tcase 0x8b60: return setValueT6; // SAMPLER_CUBE\n\n\t\t\tcase 0x1404: case 0x8b56: return setValue1i; // INT, BOOL\n\t\t\tcase 0x8b53: case 0x8b57: return setValue2iv; // _VEC2\n\t\t\tcase 0x8b54: case 0x8b58: return setValue3iv; // _VEC3\n\t\t\tcase 0x8b55: case 0x8b59: return setValue4iv; // _VEC4\n\n\t\t}\n\n\t}\n\n\t// Array of scalars\n\n\tfunction setValue1fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform1fv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\tfunction setValue1iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform1iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\t// Array of vectors (flat or from THREE classes)\n\n\tfunction setValueV2a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 2 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniform2fv( this.addr, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueV3a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 3 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniform3fv( this.addr, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueV4a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 4 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniform4fv( this.addr, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\t// Array of matrices (flat or from THREE clases)\n\n\tfunction setValueM2a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 4 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniformMatrix2fv( this.addr, false, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueM3a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 9 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniformMatrix3fv( this.addr, false, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueM4a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 16 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniformMatrix4fv( this.addr, false, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\t// Array of textures (2D / Cube)\n\n\tfunction setValueT1a( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar n = v.length;\n\n\t\tvar units = allocTexUnits( renderer, n );\n\n\t\tif ( arraysEqual( cache, units ) === false ) {\n\n\t\t\tgl.uniform1iv( this.addr, units );\n\t\t\tcopyArray( cache, units );\n\n\t\t}\n\n\t\tfor ( var i = 0; i !== n; ++ i ) {\n\n\t\t\trenderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] );\n\n\t\t}\n\n\t}\n\n\tfunction setValueT6a( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar n = v.length;\n\n\t\tvar units = allocTexUnits( renderer, n );\n\n\t\tif ( arraysEqual( cache, units ) === false ) {\n\n\t\t\tgl.uniform1iv( this.addr, units );\n\t\t\tcopyArray( cache, units );\n\n\t\t}\n\n\t\tfor ( var i = 0; i !== n; ++ i ) {\n\n\t\t\trenderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );\n\n\t\t}\n\n\t}\n\n\t// Helper to pick the right setter for a pure (bottom-level) array\n\n\tfunction getPureArraySetter( type ) {\n\n\t\tswitch ( type ) {\n\n\t\t\tcase 0x1406: return setValue1fv; // FLOAT\n\t\t\tcase 0x8b50: return setValueV2a; // _VEC2\n\t\t\tcase 0x8b51: return setValueV3a; // _VEC3\n\t\t\tcase 0x8b52: return setValueV4a; // _VEC4\n\n\t\t\tcase 0x8b5a: return setValueM2a; // _MAT2\n\t\t\tcase 0x8b5b: return setValueM3a; // _MAT3\n\t\t\tcase 0x8b5c: return setValueM4a; // _MAT4\n\n\t\t\tcase 0x8b5e: return setValueT1a; // SAMPLER_2D\n\t\t\tcase 0x8b60: return setValueT6a; // SAMPLER_CUBE\n\n\t\t\tcase 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL\n\t\t\tcase 0x8b53: case 0x8b57: return setValue2iv; // _VEC2\n\t\t\tcase 0x8b54: case 0x8b58: return setValue3iv; // _VEC3\n\t\t\tcase 0x8b55: case 0x8b59: return setValue4iv; // _VEC4\n\n\t\t}\n\n\t}\n\n\t// --- Uniform Classes ---\n\n\tfunction SingleUniform( id, activeInfo, addr ) {\n\n\t\tthis.id = id;\n\t\tthis.addr = addr;\n\t\tthis.cache = [];\n\t\tthis.setValue = getSingularSetter( activeInfo.type );\n\n\t\t// this.path = activeInfo.name; // DEBUG\n\n\t}\n\n\tfunction PureArrayUniform( id, activeInfo, addr ) {\n\n\t\tthis.id = id;\n\t\tthis.addr = addr;\n\t\tthis.cache = [];\n\t\tthis.size = activeInfo.size;\n\t\tthis.setValue = getPureArraySetter( activeInfo.type );\n\n\t\t// this.path = activeInfo.name; // DEBUG\n\n\t}\n\n\tPureArrayUniform.prototype.updateCache = function ( data ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( data instanceof Float32Array && cache.length !== data.length ) {\n\n\t\t\tthis.cache = new Float32Array( data.length );\n\n\t\t}\n\n\t\tcopyArray( cache, data );\n\n\t};\n\n\tfunction StructuredUniform( id ) {\n\n\t\tthis.id = id;\n\n\t\tUniformContainer.call( this ); // mix-in\n\n\t}\n\n\tStructuredUniform.prototype.setValue = function ( gl, value, renderer ) {\n\n\t\tvar seq = this.seq;\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ];\n\t\t\tu.setValue( gl, value[ u.id ], renderer );\n\n\t\t}\n\n\t};\n\n\t// --- Top-level ---\n\n\t// Parser - builds up the property tree from the path strings\n\n\tvar RePathPart = /([\\w\\d_]+)(\\])?(\\[|\\.)?/g;\n\n\t// extracts\n\t// \t- the identifier (member name or array index)\n\t// - followed by an optional right bracket (found when array index)\n\t// - followed by an optional left bracket or dot (type of subscript)\n\t//\n\t// Note: These portions can be read in a non-overlapping fashion and\n\t// allow straightforward parsing of the hierarchy that WebGL encodes\n\t// in the uniform names.\n\n\tfunction addUniform( container, uniformObject ) {\n\n\t\tcontainer.seq.push( uniformObject );\n\t\tcontainer.map[ uniformObject.id ] = uniformObject;\n\n\t}\n\n\tfunction parseUniform( activeInfo, addr, container ) {\n\n\t\tvar path = activeInfo.name,\n\t\t\tpathLength = path.length;\n\n\t\t// reset RegExp object, because of the early exit of a previous run\n\t\tRePathPart.lastIndex = 0;\n\n\t\twhile ( true ) {\n\n\t\t\tvar match = RePathPart.exec( path ),\n\t\t\t\tmatchEnd = RePathPart.lastIndex,\n\n\t\t\t\tid = match[ 1 ],\n\t\t\t\tidIsIndex = match[ 2 ] === ']',\n\t\t\t\tsubscript = match[ 3 ];\n\n\t\t\tif ( idIsIndex ) id = id | 0; // convert to integer\n\n\t\t\tif ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {\n\n\t\t\t\t// bare name or \"pure\" bottom-level array \"[0]\" suffix\n\n\t\t\t\taddUniform( container, subscript === undefined ?\n\t\t\t\t\tnew SingleUniform( id, activeInfo, addr ) :\n\t\t\t\t\tnew PureArrayUniform( id, activeInfo, addr ) );\n\n\t\t\t\tbreak;\n\n\t\t\t} else {\n\n\t\t\t\t// step into inner node / create it in case it doesn't exist\n\n\t\t\t\tvar map = container.map, next = map[ id ];\n\n\t\t\t\tif ( next === undefined ) {\n\n\t\t\t\t\tnext = new StructuredUniform( id );\n\t\t\t\t\taddUniform( container, next );\n\n\t\t\t\t}\n\n\t\t\t\tcontainer = next;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t// Root Container\n\n\tfunction WebGLUniforms( gl, program, renderer ) {\n\n\t\tUniformContainer.call( this );\n\n\t\tthis.renderer = renderer;\n\n\t\tvar n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );\n\n\t\tfor ( var i = 0; i < n; ++ i ) {\n\n\t\t\tvar info = gl.getActiveUniform( program, i ),\n\t\t\t\taddr = gl.getUniformLocation( program, info.name );\n\n\t\t\tparseUniform( info, addr, this );\n\n\t\t}\n\n\t}\n\n\tWebGLUniforms.prototype.setValue = function ( gl, name, value ) {\n\n\t\tvar u = this.map[ name ];\n\n\t\tif ( u !== undefined ) u.setValue( gl, value, this.renderer );\n\n\t};\n\n\tWebGLUniforms.prototype.setOptional = function ( gl, object, name ) {\n\n\t\tvar v = object[ name ];\n\n\t\tif ( v !== undefined ) this.setValue( gl, name, v );\n\n\t};\n\n\n\t// Static interface\n\n\tWebGLUniforms.upload = function ( gl, seq, values, renderer ) {\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ],\n\t\t\t\tv = values[ u.id ];\n\n\t\t\tif ( v.needsUpdate !== false ) {\n\n\t\t\t\t// note: always updating when .needsUpdate is undefined\n\t\t\t\tu.setValue( gl, v.value, renderer );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\tWebGLUniforms.seqWithValue = function ( seq, values ) {\n\n\t\tvar r = [];\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ];\n\t\t\tif ( u.id in values ) r.push( u );\n\n\t\t}\n\n\t\treturn r;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction addLineNumbers( string ) {\n\n\t\tvar lines = string.split( '\\n' );\n\n\t\tfor ( var i = 0; i < lines.length; i ++ ) {\n\n\t\t\tlines[ i ] = ( i + 1 ) + ': ' + lines[ i ];\n\n\t\t}\n\n\t\treturn lines.join( '\\n' );\n\n\t}\n\n\tfunction WebGLShader( gl, type, string ) {\n\n\t\tvar shader = gl.createShader( type );\n\n\t\tgl.shaderSource( shader, string );\n\t\tgl.compileShader( shader );\n\n\t\tif ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {\n\n\t\t\tconsole.error( 'THREE.WebGLShader: Shader couldn\\'t compile.' );\n\n\t\t}\n\n\t\tif ( gl.getShaderInfoLog( shader ) !== '' ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );\n\n\t\t}\n\n\t\t// --enable-privileged-webgl-extension\n\t\t// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );\n\n\t\treturn shader;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar programIdCount = 0;\n\n\tfunction getEncodingComponents( encoding ) {\n\n\t\tswitch ( encoding ) {\n\n\t\t\tcase LinearEncoding:\n\t\t\t\treturn [ 'Linear', '( value )' ];\n\t\t\tcase sRGBEncoding:\n\t\t\t\treturn [ 'sRGB', '( value )' ];\n\t\t\tcase RGBEEncoding:\n\t\t\t\treturn [ 'RGBE', '( value )' ];\n\t\t\tcase RGBM7Encoding:\n\t\t\t\treturn [ 'RGBM', '( value, 7.0 )' ];\n\t\t\tcase RGBM16Encoding:\n\t\t\t\treturn [ 'RGBM', '( value, 16.0 )' ];\n\t\t\tcase RGBDEncoding:\n\t\t\t\treturn [ 'RGBD', '( value, 256.0 )' ];\n\t\t\tcase GammaEncoding:\n\t\t\t\treturn [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ];\n\t\t\tdefault:\n\t\t\t\tthrow new Error( 'unsupported encoding: ' + encoding );\n\n\t\t}\n\n\t}\n\n\tfunction getTexelDecodingFunction( functionName, encoding ) {\n\n\t\tvar components = getEncodingComponents( encoding );\n\t\treturn 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }';\n\n\t}\n\n\tfunction getTexelEncodingFunction( functionName, encoding ) {\n\n\t\tvar components = getEncodingComponents( encoding );\n\t\treturn 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';\n\n\t}\n\n\tfunction getToneMappingFunction( functionName, toneMapping ) {\n\n\t\tvar toneMappingName;\n\n\t\tswitch ( toneMapping ) {\n\n\t\t\tcase LinearToneMapping:\n\t\t\t\ttoneMappingName = 'Linear';\n\t\t\t\tbreak;\n\n\t\t\tcase ReinhardToneMapping:\n\t\t\t\ttoneMappingName = 'Reinhard';\n\t\t\t\tbreak;\n\n\t\t\tcase Uncharted2ToneMapping:\n\t\t\t\ttoneMappingName = 'Uncharted2';\n\t\t\t\tbreak;\n\n\t\t\tcase CineonToneMapping:\n\t\t\t\ttoneMappingName = 'OptimizedCineon';\n\t\t\t\tbreak;\n\n\t\t\tdefault:\n\t\t\t\tthrow new Error( 'unsupported toneMapping: ' + toneMapping );\n\n\t\t}\n\n\t\treturn 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';\n\n\t}\n\n\tfunction generateExtensions( extensions, parameters, rendererExtensions ) {\n\n\t\textensions = extensions || {};\n\n\t\tvar chunks = [\n\t\t\t( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || ( parameters.normalMap && ! parameters.objectSpaceNormalMap ) || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',\n\t\t\t( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',\n\t\t\t( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',\n\t\t\t( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''\n\t\t];\n\n\t\treturn chunks.filter( filterEmptyLine ).join( '\\n' );\n\n\t}\n\n\tfunction generateDefines( defines ) {\n\n\t\tvar chunks = [];\n\n\t\tfor ( var name in defines ) {\n\n\t\t\tvar value = defines[ name ];\n\n\t\t\tif ( value === false ) continue;\n\n\t\t\tchunks.push( '#define ' + name + ' ' + value );\n\n\t\t}\n\n\t\treturn chunks.join( '\\n' );\n\n\t}\n\n\tfunction fetchAttributeLocations( gl, program ) {\n\n\t\tvar attributes = {};\n\n\t\tvar n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );\n\n\t\tfor ( var i = 0; i < n; i ++ ) {\n\n\t\t\tvar info = gl.getActiveAttrib( program, i );\n\t\t\tvar name = info.name;\n\n\t\t\t// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );\n\n\t\t\tattributes[ name ] = gl.getAttribLocation( program, name );\n\n\t\t}\n\n\t\treturn attributes;\n\n\t}\n\n\tfunction filterEmptyLine( string ) {\n\n\t\treturn string !== '';\n\n\t}\n\n\tfunction replaceLightNums( string, parameters ) {\n\n\t\treturn string\n\t\t\t.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )\n\t\t\t.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )\n\t\t\t.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )\n\t\t\t.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )\n\t\t\t.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );\n\n\t}\n\n\tfunction replaceClippingPlaneNums( string, parameters ) {\n\n\t\treturn string\n\t\t\t.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )\n\t\t\t.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );\n\n\t}\n\n\tfunction parseIncludes( string ) {\n\n\t\tvar pattern = /^[ \\t]*#include +<([\\w\\d./]+)>/gm;\n\n\t\tfunction replace( match, include ) {\n\n\t\t\tvar replace = ShaderChunk[ include ];\n\n\t\t\tif ( replace === undefined ) {\n\n\t\t\t\tthrow new Error( 'Can not resolve #include <' + include + '>' );\n\n\t\t\t}\n\n\t\t\treturn parseIncludes( replace );\n\n\t\t}\n\n\t\treturn string.replace( pattern, replace );\n\n\t}\n\n\tfunction unrollLoops( string ) {\n\n\t\tvar pattern = /#pragma unroll_loop[\\s]+?for \\( int i \\= (\\d+)\\; i < (\\d+)\\; i \\+\\+ \\) \\{([\\s\\S]+?)(?=\\})\\}/g;\n\n\t\tfunction replace( match, start, end, snippet ) {\n\n\t\t\tvar unroll = '';\n\n\t\t\tfor ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {\n\n\t\t\t\tunroll += snippet.replace( /\\[ i \\]/g, '[ ' + i + ' ]' );\n\n\t\t\t}\n\n\t\t\treturn unroll;\n\n\t\t}\n\n\t\treturn string.replace( pattern, replace );\n\n\t}\n\n\tfunction WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities ) {\n\n\t\tvar gl = renderer.context;\n\n\t\tvar defines = material.defines;\n\n\t\tvar vertexShader = shader.vertexShader;\n\t\tvar fragmentShader = shader.fragmentShader;\n\n\t\tvar shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';\n\n\t\tif ( parameters.shadowMapType === PCFShadowMap ) {\n\n\t\t\tshadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';\n\n\t\t} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {\n\n\t\t\tshadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';\n\n\t\t}\n\n\t\tvar envMapTypeDefine = 'ENVMAP_TYPE_CUBE';\n\t\tvar envMapModeDefine = 'ENVMAP_MODE_REFLECTION';\n\t\tvar envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';\n\n\t\tif ( parameters.envMap ) {\n\n\t\t\tswitch ( material.envMap.mapping ) {\n\n\t\t\t\tcase CubeReflectionMapping:\n\t\t\t\tcase CubeRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_CUBE';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase CubeUVReflectionMapping:\n\t\t\t\tcase CubeUVRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase EquirectangularReflectionMapping:\n\t\t\t\tcase EquirectangularRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase SphericalReflectionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_SPHERE';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tswitch ( material.envMap.mapping ) {\n\n\t\t\t\tcase CubeRefractionMapping:\n\t\t\t\tcase EquirectangularRefractionMapping:\n\t\t\t\t\tenvMapModeDefine = 'ENVMAP_MODE_REFRACTION';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tswitch ( material.combine ) {\n\n\t\t\t\tcase MultiplyOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase MixOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_MIX';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase AddOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_ADD';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;\n\n\t\t// console.log( 'building new program ' );\n\n\t\t//\n\n\t\tvar customExtensions = capabilities.isWebGL2 ? '' : generateExtensions( material.extensions, parameters, extensions );\n\n\t\tvar customDefines = generateDefines( defines );\n\n\t\t//\n\n\t\tvar program = gl.createProgram();\n\n\t\tvar prefixVertex, prefixFragment;\n\n\t\tif ( material.isRawShaderMaterial ) {\n\n\t\t\tprefixVertex = [\n\n\t\t\t\tcustomDefines\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tif ( prefixVertex.length > 0 ) {\n\n\t\t\t\tprefixVertex += '\\n';\n\n\t\t\t}\n\n\t\t\tprefixFragment = [\n\n\t\t\t\tcustomExtensions,\n\t\t\t\tcustomDefines\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tif ( prefixFragment.length > 0 ) {\n\n\t\t\t\tprefixFragment += '\\n';\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tprefixVertex = [\n\n\t\t\t\t'precision ' + parameters.precision + ' float;',\n\t\t\t\t'precision ' + parameters.precision + ' int;',\n\n\t\t\t\t'#define SHADER_NAME ' + shader.name,\n\n\t\t\t\tcustomDefines,\n\n\t\t\t\tparameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',\n\n\t\t\t\t'#define GAMMA_FACTOR ' + gammaFactorDefine,\n\n\t\t\t\t'#define MAX_BONES ' + parameters.maxBones,\n\t\t\t\t( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',\n\t\t\t\t( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',\n\n\t\t\t\tparameters.map ? '#define USE_MAP' : '',\n\t\t\t\tparameters.envMap ? '#define USE_ENVMAP' : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapModeDefine : '',\n\t\t\t\tparameters.lightMap ? '#define USE_LIGHTMAP' : '',\n\t\t\t\tparameters.aoMap ? '#define USE_AOMAP' : '',\n\t\t\t\tparameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',\n\t\t\t\tparameters.bumpMap ? '#define USE_BUMPMAP' : '',\n\t\t\t\tparameters.normalMap ? '#define USE_NORMALMAP' : '',\n\t\t\t\t( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',\n\t\t\t\tparameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',\n\t\t\t\tparameters.specularMap ? '#define USE_SPECULARMAP' : '',\n\t\t\t\tparameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',\n\t\t\t\tparameters.metalnessMap ? '#define USE_METALNESSMAP' : '',\n\t\t\t\tparameters.alphaMap ? '#define USE_ALPHAMAP' : '',\n\t\t\t\tparameters.vertexColors ? '#define USE_COLOR' : '',\n\n\t\t\t\tparameters.flatShading ? '#define FLAT_SHADED' : '',\n\n\t\t\t\tparameters.skinning ? '#define USE_SKINNING' : '',\n\t\t\t\tparameters.useVertexTexture ? '#define BONE_TEXTURE' : '',\n\n\t\t\t\tparameters.morphTargets ? '#define USE_MORPHTARGETS' : '',\n\t\t\t\tparameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',\n\t\t\t\tparameters.doubleSided ? '#define DOUBLE_SIDED' : '',\n\t\t\t\tparameters.flipSided ? '#define FLIP_SIDED' : '',\n\n\t\t\t\tparameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',\n\t\t\t\tparameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',\n\n\t\t\t\tparameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',\n\n\t\t\t\tparameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',\n\t\t\t\tparameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',\n\n\t\t\t\t'uniform mat4 modelMatrix;',\n\t\t\t\t'uniform mat4 modelViewMatrix;',\n\t\t\t\t'uniform mat4 projectionMatrix;',\n\t\t\t\t'uniform mat4 viewMatrix;',\n\t\t\t\t'uniform mat3 normalMatrix;',\n\t\t\t\t'uniform vec3 cameraPosition;',\n\n\t\t\t\t'attribute vec3 position;',\n\t\t\t\t'attribute vec3 normal;',\n\t\t\t\t'attribute vec2 uv;',\n\n\t\t\t\t'#ifdef USE_COLOR',\n\n\t\t\t\t'\tattribute vec3 color;',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'#ifdef USE_MORPHTARGETS',\n\n\t\t\t\t'\tattribute vec3 morphTarget0;',\n\t\t\t\t'\tattribute vec3 morphTarget1;',\n\t\t\t\t'\tattribute vec3 morphTarget2;',\n\t\t\t\t'\tattribute vec3 morphTarget3;',\n\n\t\t\t\t'\t#ifdef USE_MORPHNORMALS',\n\n\t\t\t\t'\t\tattribute vec3 morphNormal0;',\n\t\t\t\t'\t\tattribute vec3 morphNormal1;',\n\t\t\t\t'\t\tattribute vec3 morphNormal2;',\n\t\t\t\t'\t\tattribute vec3 morphNormal3;',\n\n\t\t\t\t'\t#else',\n\n\t\t\t\t'\t\tattribute vec3 morphTarget4;',\n\t\t\t\t'\t\tattribute vec3 morphTarget5;',\n\t\t\t\t'\t\tattribute vec3 morphTarget6;',\n\t\t\t\t'\t\tattribute vec3 morphTarget7;',\n\n\t\t\t\t'\t#endif',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'#ifdef USE_SKINNING',\n\n\t\t\t\t'\tattribute vec4 skinIndex;',\n\t\t\t\t'\tattribute vec4 skinWeight;',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tprefixFragment = [\n\n\t\t\t\tcustomExtensions,\n\n\t\t\t\t'precision ' + parameters.precision + ' float;',\n\t\t\t\t'precision ' + parameters.precision + ' int;',\n\n\t\t\t\t'#define SHADER_NAME ' + shader.name,\n\n\t\t\t\tcustomDefines,\n\n\t\t\t\tparameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + ( parameters.alphaTest % 1 ? '' : '.0' ) : '', // add '.0' if integer\n\n\t\t\t\t'#define GAMMA_FACTOR ' + gammaFactorDefine,\n\n\t\t\t\t( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',\n\t\t\t\t( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',\n\n\t\t\t\tparameters.map ? '#define USE_MAP' : '',\n\t\t\t\tparameters.envMap ? '#define USE_ENVMAP' : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapTypeDefine : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapModeDefine : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapBlendingDefine : '',\n\t\t\t\tparameters.lightMap ? '#define USE_LIGHTMAP' : '',\n\t\t\t\tparameters.aoMap ? '#define USE_AOMAP' : '',\n\t\t\t\tparameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',\n\t\t\t\tparameters.bumpMap ? '#define USE_BUMPMAP' : '',\n\t\t\t\tparameters.normalMap ? '#define USE_NORMALMAP' : '',\n\t\t\t\t( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',\n\t\t\t\tparameters.specularMap ? '#define USE_SPECULARMAP' : '',\n\t\t\t\tparameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',\n\t\t\t\tparameters.metalnessMap ? '#define USE_METALNESSMAP' : '',\n\t\t\t\tparameters.alphaMap ? '#define USE_ALPHAMAP' : '',\n\t\t\t\tparameters.vertexColors ? '#define USE_COLOR' : '',\n\n\t\t\t\tparameters.gradientMap ? '#define USE_GRADIENTMAP' : '',\n\n\t\t\t\tparameters.flatShading ? '#define FLAT_SHADED' : '',\n\n\t\t\t\tparameters.doubleSided ? '#define DOUBLE_SIDED' : '',\n\t\t\t\tparameters.flipSided ? '#define FLIP_SIDED' : '',\n\n\t\t\t\tparameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',\n\t\t\t\tparameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',\n\n\t\t\t\tparameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',\n\n\t\t\t\tparameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',\n\n\t\t\t\tparameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',\n\t\t\t\tparameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',\n\n\t\t\t\tparameters.envMap && ( capabilities.isWebGL2 || extensions.get( 'EXT_shader_texture_lod' ) ) ? '#define TEXTURE_LOD_EXT' : '',\n\n\t\t\t\t'uniform mat4 viewMatrix;',\n\t\t\t\t'uniform vec3 cameraPosition;',\n\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',\n\n\t\t\t\tparameters.dithering ? '#define DITHERING' : '',\n\n\t\t\t\t( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below\n\t\t\t\tparameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',\n\t\t\t\tparameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',\n\t\t\t\tparameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',\n\t\t\t\tparameters.outputEncoding ? getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ) : '',\n\n\t\t\t\tparameters.depthPacking ? '#define DEPTH_PACKING ' + material.depthPacking : '',\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t}\n\n\t\tvertexShader = parseIncludes( vertexShader );\n\t\tvertexShader = replaceLightNums( vertexShader, parameters );\n\t\tvertexShader = replaceClippingPlaneNums( vertexShader, parameters );\n\n\t\tfragmentShader = parseIncludes( fragmentShader );\n\t\tfragmentShader = replaceLightNums( fragmentShader, parameters );\n\t\tfragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );\n\n\t\tvertexShader = unrollLoops( vertexShader );\n\t\tfragmentShader = unrollLoops( fragmentShader );\n\n\t\tif ( capabilities.isWebGL2 && ! material.isRawShaderMaterial ) {\n\n\t\t\tvar isGLSL3ShaderMaterial = false;\n\n\t\t\tvar versionRegex = /^\\s*#version\\s+300\\s+es\\s*\\n/;\n\n\t\t\tif ( material.isShaderMaterial &&\n\t\t\t\tvertexShader.match( versionRegex ) !== null &&\n\t\t\t\tfragmentShader.match( versionRegex ) !== null ) {\n\n\t\t\t\tisGLSL3ShaderMaterial = true;\n\n\t\t\t\tvertexShader = vertexShader.replace( versionRegex, '' );\n\t\t\t\tfragmentShader = fragmentShader.replace( versionRegex, '' );\n\n\t\t\t}\n\n\t\t\t// GLSL 3.0 conversion\n\t\t\tprefixVertex = [\n\t\t\t\t'#version 300 es\\n',\n\t\t\t\t'#define attribute in',\n\t\t\t\t'#define varying out',\n\t\t\t\t'#define texture2D texture'\n\t\t\t].join( '\\n' ) + '\\n' + prefixVertex;\n\n\t\t\tprefixFragment = [\n\t\t\t\t'#version 300 es\\n',\n\t\t\t\t'#define varying in',\n\t\t\t\tisGLSL3ShaderMaterial ? '' : 'out highp vec4 pc_fragColor;',\n\t\t\t\tisGLSL3ShaderMaterial ? '' : '#define gl_FragColor pc_fragColor',\n\t\t\t\t'#define gl_FragDepthEXT gl_FragDepth',\n\t\t\t\t'#define texture2D texture',\n\t\t\t\t'#define textureCube texture',\n\t\t\t\t'#define texture2DProj textureProj',\n\t\t\t\t'#define texture2DLodEXT textureLod',\n\t\t\t\t'#define texture2DProjLodEXT textureProjLod',\n\t\t\t\t'#define textureCubeLodEXT textureLod',\n\t\t\t\t'#define texture2DGradEXT textureGrad',\n\t\t\t\t'#define texture2DProjGradEXT textureProjGrad',\n\t\t\t\t'#define textureCubeGradEXT textureGrad'\n\t\t\t].join( '\\n' ) + '\\n' + prefixFragment;\n\n\t\t}\n\n\t\tvar vertexGlsl = prefixVertex + vertexShader;\n\t\tvar fragmentGlsl = prefixFragment + fragmentShader;\n\n\t\t// console.log( '*VERTEX*', vertexGlsl );\n\t\t// console.log( '*FRAGMENT*', fragmentGlsl );\n\n\t\tvar glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );\n\t\tvar glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );\n\n\t\tgl.attachShader( program, glVertexShader );\n\t\tgl.attachShader( program, glFragmentShader );\n\n\t\t// Force a particular attribute to index 0.\n\n\t\tif ( material.index0AttributeName !== undefined ) {\n\n\t\t\tgl.bindAttribLocation( program, 0, material.index0AttributeName );\n\n\t\t} else if ( parameters.morphTargets === true ) {\n\n\t\t\t// programs with morphTargets displace position out of attribute 0\n\t\t\tgl.bindAttribLocation( program, 0, 'position' );\n\n\t\t}\n\n\t\tgl.linkProgram( program );\n\n\t\tvar programLog = gl.getProgramInfoLog( program ).trim();\n\t\tvar vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();\n\t\tvar fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();\n\n\t\tvar runnable = true;\n\t\tvar haveDiagnostics = true;\n\n\t\t// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );\n\t\t// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );\n\n\t\tif ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {\n\n\t\t\trunnable = false;\n\n\t\t\tconsole.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );\n\n\t\t} else if ( programLog !== '' ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );\n\n\t\t} else if ( vertexLog === '' || fragmentLog === '' ) {\n\n\t\t\thaveDiagnostics = false;\n\n\t\t}\n\n\t\tif ( haveDiagnostics ) {\n\n\t\t\tthis.diagnostics = {\n\n\t\t\t\trunnable: runnable,\n\t\t\t\tmaterial: material,\n\n\t\t\t\tprogramLog: programLog,\n\n\t\t\t\tvertexShader: {\n\n\t\t\t\t\tlog: vertexLog,\n\t\t\t\t\tprefix: prefixVertex\n\n\t\t\t\t},\n\n\t\t\t\tfragmentShader: {\n\n\t\t\t\t\tlog: fragmentLog,\n\t\t\t\t\tprefix: prefixFragment\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\t// clean up\n\n\t\tgl.deleteShader( glVertexShader );\n\t\tgl.deleteShader( glFragmentShader );\n\n\t\t// set up caching for uniform locations\n\n\t\tvar cachedUniforms;\n\n\t\tthis.getUniforms = function () {\n\n\t\t\tif ( cachedUniforms === undefined ) {\n\n\t\t\t\tcachedUniforms = new WebGLUniforms( gl, program, renderer );\n\n\t\t\t}\n\n\t\t\treturn cachedUniforms;\n\n\t\t};\n\n\t\t// set up caching for attribute locations\n\n\t\tvar cachedAttributes;\n\n\t\tthis.getAttributes = function () {\n\n\t\t\tif ( cachedAttributes === undefined ) {\n\n\t\t\t\tcachedAttributes = fetchAttributeLocations( gl, program );\n\n\t\t\t}\n\n\t\t\treturn cachedAttributes;\n\n\t\t};\n\n\t\t// free resource\n\n\t\tthis.destroy = function () {\n\n\t\t\tgl.deleteProgram( program );\n\t\t\tthis.program = undefined;\n\n\t\t};\n\n\t\t// DEPRECATED\n\n\t\tObject.defineProperties( this, {\n\n\t\t\tuniforms: {\n\t\t\t\tget: function () {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );\n\t\t\t\t\treturn this.getUniforms();\n\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tattributes: {\n\t\t\t\tget: function () {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );\n\t\t\t\t\treturn this.getAttributes();\n\n\t\t\t\t}\n\t\t\t}\n\n\t\t} );\n\n\n\t\t//\n\n\t\tthis.name = shader.name;\n\t\tthis.id = programIdCount ++;\n\t\tthis.code = code;\n\t\tthis.usedTimes = 1;\n\t\tthis.program = program;\n\t\tthis.vertexShader = glVertexShader;\n\t\tthis.fragmentShader = glFragmentShader;\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLPrograms( renderer, extensions, capabilities ) {\n\n\t\tvar programs = [];\n\n\t\tvar shaderIDs = {\n\t\t\tMeshDepthMaterial: 'depth',\n\t\t\tMeshDistanceMaterial: 'distanceRGBA',\n\t\t\tMeshNormalMaterial: 'normal',\n\t\t\tMeshBasicMaterial: 'basic',\n\t\t\tMeshLambertMaterial: 'lambert',\n\t\t\tMeshPhongMaterial: 'phong',\n\t\t\tMeshToonMaterial: 'phong',\n\t\t\tMeshStandardMaterial: 'physical',\n\t\t\tMeshPhysicalMaterial: 'physical',\n\t\t\tLineBasicMaterial: 'basic',\n\t\t\tLineDashedMaterial: 'dashed',\n\t\t\tPointsMaterial: 'points',\n\t\t\tShadowMaterial: 'shadow',\n\t\t\tSpriteMaterial: 'sprite'\n\t\t};\n\n\t\tvar parameterNames = [\n\t\t\t\"precision\", \"supportsVertexTextures\", \"map\", \"mapEncoding\", \"envMap\", \"envMapMode\", \"envMapEncoding\",\n\t\t\t\"lightMap\", \"aoMap\", \"emissiveMap\", \"emissiveMapEncoding\", \"bumpMap\", \"normalMap\", \"objectSpaceNormalMap\", \"displacementMap\", \"specularMap\",\n\t\t\t\"roughnessMap\", \"metalnessMap\", \"gradientMap\",\n\t\t\t\"alphaMap\", \"combine\", \"vertexColors\", \"fog\", \"useFog\", \"fogExp\",\n\t\t\t\"flatShading\", \"sizeAttenuation\", \"logarithmicDepthBuffer\", \"skinning\",\n\t\t\t\"maxBones\", \"useVertexTexture\", \"morphTargets\", \"morphNormals\",\n\t\t\t\"maxMorphTargets\", \"maxMorphNormals\", \"premultipliedAlpha\",\n\t\t\t\"numDirLights\", \"numPointLights\", \"numSpotLights\", \"numHemiLights\", \"numRectAreaLights\",\n\t\t\t\"shadowMapEnabled\", \"shadowMapType\", \"toneMapping\", 'physicallyCorrectLights',\n\t\t\t\"alphaTest\", \"doubleSided\", \"flipSided\", \"numClippingPlanes\", \"numClipIntersection\", \"depthPacking\", \"dithering\"\n\t\t];\n\n\n\t\tfunction allocateBones( object ) {\n\n\t\t\tvar skeleton = object.skeleton;\n\t\t\tvar bones = skeleton.bones;\n\n\t\t\tif ( capabilities.floatVertexTextures ) {\n\n\t\t\t\treturn 1024;\n\n\t\t\t} else {\n\n\t\t\t\t// default for when object is not specified\n\t\t\t\t// ( for example when prebuilding shader to be used with multiple objects )\n\t\t\t\t//\n\t\t\t\t// - leave some extra space for other uniforms\n\t\t\t\t// - limit here is ANGLE's 254 max uniform vectors\n\t\t\t\t// (up to 54 should be safe)\n\n\t\t\t\tvar nVertexUniforms = capabilities.maxVertexUniforms;\n\t\t\t\tvar nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );\n\n\t\t\t\tvar maxBones = Math.min( nVertexMatrices, bones.length );\n\n\t\t\t\tif ( maxBones < bones.length ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );\n\t\t\t\t\treturn 0;\n\n\t\t\t\t}\n\n\t\t\t\treturn maxBones;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getTextureEncodingFromMap( map, gammaOverrideLinear ) {\n\n\t\t\tvar encoding;\n\n\t\t\tif ( ! map ) {\n\n\t\t\t\tencoding = LinearEncoding;\n\n\t\t\t} else if ( map.isTexture ) {\n\n\t\t\t\tencoding = map.encoding;\n\n\t\t\t} else if ( map.isWebGLRenderTarget ) {\n\n\t\t\t\tconsole.warn( \"THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead.\" );\n\t\t\t\tencoding = map.texture.encoding;\n\n\t\t\t}\n\n\t\t\t// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.\n\t\t\tif ( encoding === LinearEncoding && gammaOverrideLinear ) {\n\n\t\t\t\tencoding = GammaEncoding;\n\n\t\t\t}\n\n\t\t\treturn encoding;\n\n\t\t}\n\n\t\tthis.getParameters = function ( material, lights, shadows, fog, nClipPlanes, nClipIntersection, object ) {\n\n\t\t\tvar shaderID = shaderIDs[ material.type ];\n\n\t\t\t// heuristics to create shader parameters according to lights in the scene\n\t\t\t// (not to blow over maxLights budget)\n\n\t\t\tvar maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;\n\t\t\tvar precision = capabilities.precision;\n\n\t\t\tif ( material.precision !== null ) {\n\n\t\t\t\tprecision = capabilities.getMaxPrecision( material.precision );\n\n\t\t\t\tif ( precision !== material.precision ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar currentRenderTarget = renderer.getRenderTarget();\n\n\t\t\tvar parameters = {\n\n\t\t\t\tshaderID: shaderID,\n\n\t\t\t\tprecision: precision,\n\t\t\t\tsupportsVertexTextures: capabilities.vertexTextures,\n\t\t\t\toutputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),\n\t\t\t\tmap: !! material.map,\n\t\t\t\tmapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),\n\t\t\t\tenvMap: !! material.envMap,\n\t\t\t\tenvMapMode: material.envMap && material.envMap.mapping,\n\t\t\t\tenvMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),\n\t\t\t\tenvMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),\n\t\t\t\tlightMap: !! material.lightMap,\n\t\t\t\taoMap: !! material.aoMap,\n\t\t\t\temissiveMap: !! material.emissiveMap,\n\t\t\t\temissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),\n\t\t\t\tbumpMap: !! material.bumpMap,\n\t\t\t\tnormalMap: !! material.normalMap,\n\t\t\t\tobjectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,\n\t\t\t\tdisplacementMap: !! material.displacementMap,\n\t\t\t\troughnessMap: !! material.roughnessMap,\n\t\t\t\tmetalnessMap: !! material.metalnessMap,\n\t\t\t\tspecularMap: !! material.specularMap,\n\t\t\t\talphaMap: !! material.alphaMap,\n\n\t\t\t\tgradientMap: !! material.gradientMap,\n\n\t\t\t\tcombine: material.combine,\n\n\t\t\t\tvertexColors: material.vertexColors,\n\n\t\t\t\tfog: !! fog,\n\t\t\t\tuseFog: material.fog,\n\t\t\t\tfogExp: ( fog && fog.isFogExp2 ),\n\n\t\t\t\tflatShading: material.flatShading,\n\n\t\t\t\tsizeAttenuation: material.sizeAttenuation,\n\t\t\t\tlogarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,\n\n\t\t\t\tskinning: material.skinning && maxBones > 0,\n\t\t\t\tmaxBones: maxBones,\n\t\t\t\tuseVertexTexture: capabilities.floatVertexTextures,\n\n\t\t\t\tmorphTargets: material.morphTargets,\n\t\t\t\tmorphNormals: material.morphNormals,\n\t\t\t\tmaxMorphTargets: renderer.maxMorphTargets,\n\t\t\t\tmaxMorphNormals: renderer.maxMorphNormals,\n\n\t\t\t\tnumDirLights: lights.directional.length,\n\t\t\t\tnumPointLights: lights.point.length,\n\t\t\t\tnumSpotLights: lights.spot.length,\n\t\t\t\tnumRectAreaLights: lights.rectArea.length,\n\t\t\t\tnumHemiLights: lights.hemi.length,\n\n\t\t\t\tnumClippingPlanes: nClipPlanes,\n\t\t\t\tnumClipIntersection: nClipIntersection,\n\n\t\t\t\tdithering: material.dithering,\n\n\t\t\t\tshadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && shadows.length > 0,\n\t\t\t\tshadowMapType: renderer.shadowMap.type,\n\n\t\t\t\ttoneMapping: renderer.toneMapping,\n\t\t\t\tphysicallyCorrectLights: renderer.physicallyCorrectLights,\n\n\t\t\t\tpremultipliedAlpha: material.premultipliedAlpha,\n\n\t\t\t\talphaTest: material.alphaTest,\n\t\t\t\tdoubleSided: material.side === DoubleSide,\n\t\t\t\tflipSided: material.side === BackSide,\n\n\t\t\t\tdepthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false\n\n\t\t\t};\n\n\t\t\treturn parameters;\n\n\t\t};\n\n\t\tthis.getProgramCode = function ( material, parameters ) {\n\n\t\t\tvar array = [];\n\n\t\t\tif ( parameters.shaderID ) {\n\n\t\t\t\tarray.push( parameters.shaderID );\n\n\t\t\t} else {\n\n\t\t\t\tarray.push( material.fragmentShader );\n\t\t\t\tarray.push( material.vertexShader );\n\n\t\t\t}\n\n\t\t\tif ( material.defines !== undefined ) {\n\n\t\t\t\tfor ( var name in material.defines ) {\n\n\t\t\t\t\tarray.push( name );\n\t\t\t\t\tarray.push( material.defines[ name ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < parameterNames.length; i ++ ) {\n\n\t\t\t\tarray.push( parameters[ parameterNames[ i ] ] );\n\n\t\t\t}\n\n\t\t\tarray.push( material.onBeforeCompile.toString() );\n\n\t\t\tarray.push( renderer.gammaOutput );\n\n\t\t\treturn array.join();\n\n\t\t};\n\n\t\tthis.acquireProgram = function ( material, shader, parameters, code ) {\n\n\t\t\tvar program;\n\n\t\t\t// Check if code has been already compiled\n\t\t\tfor ( var p = 0, pl = programs.length; p < pl; p ++ ) {\n\n\t\t\t\tvar programInfo = programs[ p ];\n\n\t\t\t\tif ( programInfo.code === code ) {\n\n\t\t\t\t\tprogram = programInfo;\n\t\t\t\t\t++ program.usedTimes;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\tprogram = new WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities );\n\t\t\t\tprograms.push( program );\n\n\t\t\t}\n\n\t\t\treturn program;\n\n\t\t};\n\n\t\tthis.releaseProgram = function ( program ) {\n\n\t\t\tif ( -- program.usedTimes === 0 ) {\n\n\t\t\t\t// Remove from unordered set\n\t\t\t\tvar i = programs.indexOf( program );\n\t\t\t\tprograms[ i ] = programs[ programs.length - 1 ];\n\t\t\t\tprograms.pop();\n\n\t\t\t\t// Free WebGL resources\n\t\t\t\tprogram.destroy();\n\n\t\t\t}\n\n\t\t};\n\n\t\t// Exposed for resource monitoring & error feedback via renderer.info:\n\t\tthis.programs = programs;\n\n\t}\n\n\t/**\n\t * @author fordacious / fordacious.github.io\n\t */\n\n\tfunction WebGLProperties() {\n\n\t\tvar properties = new WeakMap();\n\n\t\tfunction get( object ) {\n\n\t\t\tvar map = properties.get( object );\n\n\t\t\tif ( map === undefined ) {\n\n\t\t\t\tmap = {};\n\t\t\t\tproperties.set( object, map );\n\n\t\t\t}\n\n\t\t\treturn map;\n\n\t\t}\n\n\t\tfunction remove( object ) {\n\n\t\t\tproperties.delete( object );\n\n\t\t}\n\n\t\tfunction update( object, key, value ) {\n\n\t\t\tproperties.get( object )[ key ] = value;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\tproperties = new WeakMap();\n\n\t\t}\n\n\t\treturn {\n\t\t\tget: get,\n\t\t\tremove: remove,\n\t\t\tupdate: update,\n\t\t\tdispose: dispose\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction painterSortStable( a, b ) {\n\n\t\tif ( a.renderOrder !== b.renderOrder ) {\n\n\t\t\treturn a.renderOrder - b.renderOrder;\n\n\t\t} else if ( a.program && b.program && a.program !== b.program ) {\n\n\t\t\treturn a.program.id - b.program.id;\n\n\t\t} else if ( a.material.id !== b.material.id ) {\n\n\t\t\treturn a.material.id - b.material.id;\n\n\t\t} else if ( a.z !== b.z ) {\n\n\t\t\treturn a.z - b.z;\n\n\t\t} else {\n\n\t\t\treturn a.id - b.id;\n\n\t\t}\n\n\t}\n\n\tfunction reversePainterSortStable( a, b ) {\n\n\t\tif ( a.renderOrder !== b.renderOrder ) {\n\n\t\t\treturn a.renderOrder - b.renderOrder;\n\n\t\t} if ( a.z !== b.z ) {\n\n\t\t\treturn b.z - a.z;\n\n\t\t} else {\n\n\t\t\treturn a.id - b.id;\n\n\t\t}\n\n\t}\n\n\n\tfunction WebGLRenderList() {\n\n\t\tvar renderItems = [];\n\t\tvar renderItemsIndex = 0;\n\n\t\tvar opaque = [];\n\t\tvar transparent = [];\n\n\t\tfunction init() {\n\n\t\t\trenderItemsIndex = 0;\n\n\t\t\topaque.length = 0;\n\t\t\ttransparent.length = 0;\n\n\t\t}\n\n\t\tfunction push( object, geometry, material, z, group ) {\n\n\t\t\tvar renderItem = renderItems[ renderItemsIndex ];\n\n\t\t\tif ( renderItem === undefined ) {\n\n\t\t\t\trenderItem = {\n\t\t\t\t\tid: object.id,\n\t\t\t\t\tobject: object,\n\t\t\t\t\tgeometry: geometry,\n\t\t\t\t\tmaterial: material,\n\t\t\t\t\tprogram: material.program,\n\t\t\t\t\trenderOrder: object.renderOrder,\n\t\t\t\t\tz: z,\n\t\t\t\t\tgroup: group\n\t\t\t\t};\n\n\t\t\t\trenderItems[ renderItemsIndex ] = renderItem;\n\n\t\t\t} else {\n\n\t\t\t\trenderItem.id = object.id;\n\t\t\t\trenderItem.object = object;\n\t\t\t\trenderItem.geometry = geometry;\n\t\t\t\trenderItem.material = material;\n\t\t\t\trenderItem.program = material.program;\n\t\t\t\trenderItem.renderOrder = object.renderOrder;\n\t\t\t\trenderItem.z = z;\n\t\t\t\trenderItem.group = group;\n\n\t\t\t}\n\n\n\t\t\t( material.transparent === true ? transparent : opaque ).push( renderItem );\n\n\t\t\trenderItemsIndex ++;\n\n\t\t}\n\n\t\tfunction sort() {\n\n\t\t\tif ( opaque.length > 1 ) opaque.sort( painterSortStable );\n\t\t\tif ( transparent.length > 1 ) transparent.sort( reversePainterSortStable );\n\n\t\t}\n\n\t\treturn {\n\t\t\topaque: opaque,\n\t\t\ttransparent: transparent,\n\n\t\t\tinit: init,\n\t\t\tpush: push,\n\n\t\t\tsort: sort\n\t\t};\n\n\t}\n\n\tfunction WebGLRenderLists() {\n\n\t\tvar lists = {};\n\n\t\tfunction get( scene, camera ) {\n\n\t\t\tvar hash = scene.id + ',' + camera.id;\n\t\t\tvar list = lists[ hash ];\n\n\t\t\tif ( list === undefined ) {\n\n\t\t\t\t// console.log( 'THREE.WebGLRenderLists:', hash );\n\n\t\t\t\tlist = new WebGLRenderList();\n\t\t\t\tlists[ hash ] = list;\n\n\t\t\t}\n\n\t\t\treturn list;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\tlists = {};\n\n\t\t}\n\n\t\treturn {\n\t\t\tget: get,\n\t\t\tdispose: dispose\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction UniformsCache() {\n\n\t\tvar lights = {};\n\n\t\treturn {\n\n\t\t\tget: function ( light ) {\n\n\t\t\t\tif ( lights[ light.id ] !== undefined ) {\n\n\t\t\t\t\treturn lights[ light.id ];\n\n\t\t\t\t}\n\n\t\t\t\tvar uniforms;\n\n\t\t\t\tswitch ( light.type ) {\n\n\t\t\t\t\tcase 'DirectionalLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'SpotLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tdistance: 0,\n\t\t\t\t\t\t\tconeCos: 0,\n\t\t\t\t\t\t\tpenumbraCos: 0,\n\t\t\t\t\t\t\tdecay: 0,\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'PointLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tdistance: 0,\n\t\t\t\t\t\t\tdecay: 0,\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2(),\n\t\t\t\t\t\t\tshadowCameraNear: 1,\n\t\t\t\t\t\t\tshadowCameraFar: 1000\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'HemisphereLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tskyColor: new Color(),\n\t\t\t\t\t\t\tgroundColor: new Color()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'RectAreaLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\thalfWidth: new Vector3(),\n\t\t\t\t\t\t\thalfHeight: new Vector3()\n\t\t\t\t\t\t\t// TODO (abelnation): set RectAreaLight shadow uniforms\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tlights[ light.id ] = uniforms;\n\n\t\t\t\treturn uniforms;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\tvar count = 0;\n\n\tfunction WebGLLights() {\n\n\t\tvar cache = new UniformsCache();\n\n\t\tvar state = {\n\n\t\t\tid: count ++,\n\n\t\t\thash: {\n\t\t\t\tstateID: - 1,\n\t\t\t\tdirectionalLength: - 1,\n\t\t\t\tpointLength: - 1,\n\t\t\t\tspotLength: - 1,\n\t\t\t\trectAreaLength: - 1,\n\t\t\t\themiLength: - 1,\n\t\t\t\tshadowsLength: - 1\n\t\t\t},\n\n\t\t\tambient: [ 0, 0, 0 ],\n\t\t\tdirectional: [],\n\t\t\tdirectionalShadowMap: [],\n\t\t\tdirectionalShadowMatrix: [],\n\t\t\tspot: [],\n\t\t\tspotShadowMap: [],\n\t\t\tspotShadowMatrix: [],\n\t\t\trectArea: [],\n\t\t\tpoint: [],\n\t\t\tpointShadowMap: [],\n\t\t\tpointShadowMatrix: [],\n\t\t\themi: []\n\n\t\t};\n\n\t\tvar vector3 = new Vector3();\n\t\tvar matrix4 = new Matrix4();\n\t\tvar matrix42 = new Matrix4();\n\n\t\tfunction setup( lights, shadows, camera ) {\n\n\t\t\tvar r = 0, g = 0, b = 0;\n\n\t\t\tvar directionalLength = 0;\n\t\t\tvar pointLength = 0;\n\t\t\tvar spotLength = 0;\n\t\t\tvar rectAreaLength = 0;\n\t\t\tvar hemiLength = 0;\n\n\t\t\tvar viewMatrix = camera.matrixWorldInverse;\n\n\t\t\tfor ( var i = 0, l = lights.length; i < l; i ++ ) {\n\n\t\t\t\tvar light = lights[ i ];\n\n\t\t\t\tvar color = light.color;\n\t\t\t\tvar intensity = light.intensity;\n\t\t\t\tvar distance = light.distance;\n\n\t\t\t\tvar shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;\n\n\t\t\t\tif ( light.isAmbientLight ) {\n\n\t\t\t\t\tr += color.r * intensity;\n\t\t\t\t\tg += color.g * intensity;\n\t\t\t\t\tb += color.b * intensity;\n\n\t\t\t\t} else if ( light.isDirectionalLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.color.copy( light.color ).multiplyScalar( light.intensity );\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tvector3.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tuniforms.direction.sub( vector3 );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tvar shadow = light.shadow;\n\n\t\t\t\t\t\tuniforms.shadowBias = shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = shadow.mapSize;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.directionalShadowMap[ directionalLength ] = shadowMap;\n\t\t\t\t\tstate.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;\n\t\t\t\t\tstate.directional[ directionalLength ] = uniforms;\n\n\t\t\t\t\tdirectionalLength ++;\n\n\t\t\t\t} else if ( light.isSpotLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\tuniforms.color.copy( color ).multiplyScalar( intensity );\n\t\t\t\t\tuniforms.distance = distance;\n\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tvector3.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tuniforms.direction.sub( vector3 );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\n\t\t\t\t\tuniforms.coneCos = Math.cos( light.angle );\n\t\t\t\t\tuniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );\n\t\t\t\t\tuniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tvar shadow = light.shadow;\n\n\t\t\t\t\t\tuniforms.shadowBias = shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = shadow.mapSize;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.spotShadowMap[ spotLength ] = shadowMap;\n\t\t\t\t\tstate.spotShadowMatrix[ spotLength ] = light.shadow.matrix;\n\t\t\t\t\tstate.spot[ spotLength ] = uniforms;\n\n\t\t\t\t\tspotLength ++;\n\n\t\t\t\t} else if ( light.isRectAreaLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\t// (a) intensity is the total visible light emitted\n\t\t\t\t\t//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );\n\n\t\t\t\t\t// (b) intensity is the brightness of the light\n\t\t\t\t\tuniforms.color.copy( color ).multiplyScalar( intensity );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\t// extract local rotation of light to derive width/height half vectors\n\t\t\t\t\tmatrix42.identity();\n\t\t\t\t\tmatrix4.copy( light.matrixWorld );\n\t\t\t\t\tmatrix4.premultiply( viewMatrix );\n\t\t\t\t\tmatrix42.extractRotation( matrix4 );\n\n\t\t\t\t\tuniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );\n\t\t\t\t\tuniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );\n\n\t\t\t\t\tuniforms.halfWidth.applyMatrix4( matrix42 );\n\t\t\t\t\tuniforms.halfHeight.applyMatrix4( matrix42 );\n\n\t\t\t\t\t// TODO (abelnation): RectAreaLight distance?\n\t\t\t\t\t// uniforms.distance = distance;\n\n\t\t\t\t\tstate.rectArea[ rectAreaLength ] = uniforms;\n\n\t\t\t\t\trectAreaLength ++;\n\n\t\t\t\t} else if ( light.isPointLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\tuniforms.color.copy( light.color ).multiplyScalar( light.intensity );\n\t\t\t\t\tuniforms.distance = light.distance;\n\t\t\t\t\tuniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tvar shadow = light.shadow;\n\n\t\t\t\t\t\tuniforms.shadowBias = shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = shadow.mapSize;\n\t\t\t\t\t\tuniforms.shadowCameraNear = shadow.camera.near;\n\t\t\t\t\t\tuniforms.shadowCameraFar = shadow.camera.far;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.pointShadowMap[ pointLength ] = shadowMap;\n\t\t\t\t\tstate.pointShadowMatrix[ pointLength ] = light.shadow.matrix;\n\t\t\t\t\tstate.point[ pointLength ] = uniforms;\n\n\t\t\t\t\tpointLength ++;\n\n\t\t\t\t} else if ( light.isHemisphereLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\t\t\t\t\tuniforms.direction.normalize();\n\n\t\t\t\t\tuniforms.skyColor.copy( light.color ).multiplyScalar( intensity );\n\t\t\t\t\tuniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );\n\n\t\t\t\t\tstate.hemi[ hemiLength ] = uniforms;\n\n\t\t\t\t\themiLength ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.ambient[ 0 ] = r;\n\t\t\tstate.ambient[ 1 ] = g;\n\t\t\tstate.ambient[ 2 ] = b;\n\n\t\t\tstate.directional.length = directionalLength;\n\t\t\tstate.spot.length = spotLength;\n\t\t\tstate.rectArea.length = rectAreaLength;\n\t\t\tstate.point.length = pointLength;\n\t\t\tstate.hemi.length = hemiLength;\n\n\t\t\tstate.hash.stateID = state.id;\n\t\t\tstate.hash.directionalLength = directionalLength;\n\t\t\tstate.hash.pointLength = pointLength;\n\t\t\tstate.hash.spotLength = spotLength;\n\t\t\tstate.hash.rectAreaLength = rectAreaLength;\n\t\t\tstate.hash.hemiLength = hemiLength;\n\t\t\tstate.hash.shadowsLength = shadows.length;\n\n\t\t}\n\n\t\treturn {\n\t\t\tsetup: setup,\n\t\t\tstate: state\n\t\t};\n\n\t}\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction WebGLRenderState() {\n\n\t\tvar lights = new WebGLLights();\n\n\t\tvar lightsArray = [];\n\t\tvar shadowsArray = [];\n\n\t\tfunction init() {\n\n\t\t\tlightsArray.length = 0;\n\t\t\tshadowsArray.length = 0;\n\n\t\t}\n\n\t\tfunction pushLight( light ) {\n\n\t\t\tlightsArray.push( light );\n\n\t\t}\n\n\t\tfunction pushShadow( shadowLight ) {\n\n\t\t\tshadowsArray.push( shadowLight );\n\n\t\t}\n\n\t\tfunction setupLights( camera ) {\n\n\t\t\tlights.setup( lightsArray, shadowsArray, camera );\n\n\t\t}\n\n\t\tvar state = {\n\t\t\tlightsArray: lightsArray,\n\t\t\tshadowsArray: shadowsArray,\n\n\t\t\tlights: lights\n\t\t};\n\n\t\treturn {\n\t\t\tinit: init,\n\t\t\tstate: state,\n\t\t\tsetupLights: setupLights,\n\n\t\t\tpushLight: pushLight,\n\t\t\tpushShadow: pushShadow\n\t\t};\n\n\t}\n\n\tfunction WebGLRenderStates() {\n\n\t\tvar renderStates = {};\n\n\t\tfunction get( scene, camera ) {\n\n\t\t\tvar renderState;\n\n\t\t\tif ( renderStates[ scene.id ] === undefined ) {\n\n\t\t\t\trenderState = new WebGLRenderState();\n\t\t\t\trenderStates[ scene.id ] = {};\n\t\t\t\trenderStates[ scene.id ][ camera.id ] = renderState;\n\n\t\t\t} else {\n\n\t\t\t\tif ( renderStates[ scene.id ][ camera.id ] === undefined ) {\n\n\t\t\t\t\trenderState = new WebGLRenderState();\n\t\t\t\t\trenderStates[ scene.id ][ camera.id ] = renderState;\n\n\t\t\t\t} else {\n\n\t\t\t\t\trenderState = renderStates[ scene.id ][ camera.id ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn renderState;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\trenderStates = {};\n\n\t\t}\n\n\t\treturn {\n\t\t\tget: get,\n\t\t\tdispose: dispose\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author bhouston / https://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t *\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: \n\t * }\n\t */\n\n\tfunction MeshDepthMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshDepthMaterial';\n\n\t\tthis.depthPacking = BasicDepthPacking;\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.map = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshDepthMaterial.prototype = Object.create( Material.prototype );\n\tMeshDepthMaterial.prototype.constructor = MeshDepthMaterial;\n\n\tMeshDepthMaterial.prototype.isMeshDepthMaterial = true;\n\n\tMeshDepthMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.depthPacking = source.depthPacking;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\tthis.map = source.map;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t *\n\t * referencePosition: ,\n\t * nearDistance: ,\n\t * farDistance: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: \n\t *\n\t * }\n\t */\n\n\tfunction MeshDistanceMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshDistanceMaterial';\n\n\t\tthis.referencePosition = new Vector3();\n\t\tthis.nearDistance = 1;\n\t\tthis.farDistance = 1000;\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.map = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshDistanceMaterial.prototype = Object.create( Material.prototype );\n\tMeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial;\n\n\tMeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;\n\n\tMeshDistanceMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.referencePosition.copy( source.referencePosition );\n\t\tthis.nearDistance = source.nearDistance;\n\t\tthis.farDistance = source.farDistance;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\tthis.map = source.map;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLShadowMap( _renderer, _objects, maxTextureSize ) {\n\n\t\tvar _frustum = new Frustum(),\n\t\t\t_projScreenMatrix = new Matrix4(),\n\n\t\t\t_shadowMapSize = new Vector2(),\n\t\t\t_maxShadowMapSize = new Vector2( maxTextureSize, maxTextureSize ),\n\n\t\t\t_lookTarget = new Vector3(),\n\t\t\t_lightPositionWorld = new Vector3(),\n\n\t\t\t_MorphingFlag = 1,\n\t\t\t_SkinningFlag = 2,\n\n\t\t\t_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,\n\n\t\t\t_depthMaterials = new Array( _NumberOfMaterialVariants ),\n\t\t\t_distanceMaterials = new Array( _NumberOfMaterialVariants ),\n\n\t\t\t_materialCache = {};\n\n\t\tvar shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };\n\n\t\tvar cubeDirections = [\n\t\t\tnew Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),\n\t\t\tnew Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )\n\t\t];\n\n\t\tvar cubeUps = [\n\t\t\tnew Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),\n\t\t\tnew Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),\tnew Vector3( 0, 0, - 1 )\n\t\t];\n\n\t\tvar cube2DViewPorts = [\n\t\t\tnew Vector4(), new Vector4(), new Vector4(),\n\t\t\tnew Vector4(), new Vector4(), new Vector4()\n\t\t];\n\n\t\t// init\n\n\t\tfor ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {\n\n\t\t\tvar useMorphing = ( i & _MorphingFlag ) !== 0;\n\t\t\tvar useSkinning = ( i & _SkinningFlag ) !== 0;\n\n\t\t\tvar depthMaterial = new MeshDepthMaterial( {\n\n\t\t\t\tdepthPacking: RGBADepthPacking,\n\n\t\t\t\tmorphTargets: useMorphing,\n\t\t\t\tskinning: useSkinning\n\n\t\t\t} );\n\n\t\t\t_depthMaterials[ i ] = depthMaterial;\n\n\t\t\t//\n\n\t\t\tvar distanceMaterial = new MeshDistanceMaterial( {\n\n\t\t\t\tmorphTargets: useMorphing,\n\t\t\t\tskinning: useSkinning\n\n\t\t\t} );\n\n\t\t\t_distanceMaterials[ i ] = distanceMaterial;\n\n\t\t}\n\n\t\t//\n\n\t\tvar scope = this;\n\n\t\tthis.enabled = false;\n\n\t\tthis.autoUpdate = true;\n\t\tthis.needsUpdate = false;\n\n\t\tthis.type = PCFShadowMap;\n\n\t\tthis.render = function ( lights, scene, camera ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\t\t\tif ( scope.autoUpdate === false && scope.needsUpdate === false ) return;\n\n\t\t\tif ( lights.length === 0 ) return;\n\n\t\t\t// TODO Clean up (needed in case of contextlost)\n\t\t\tvar _gl = _renderer.context;\n\t\t\tvar _state = _renderer.state;\n\n\t\t\t// Set GL state for depth map.\n\t\t\t_state.disable( _gl.BLEND );\n\t\t\t_state.buffers.color.setClear( 1, 1, 1, 1 );\n\t\t\t_state.buffers.depth.setTest( true );\n\t\t\t_state.setScissorTest( false );\n\n\t\t\t// render depth map\n\n\t\t\tvar faceCount;\n\n\t\t\tfor ( var i = 0, il = lights.length; i < il; i ++ ) {\n\n\t\t\t\tvar light = lights[ i ];\n\t\t\t\tvar shadow = light.shadow;\n\t\t\t\tvar isPointLight = light && light.isPointLight;\n\n\t\t\t\tif ( shadow === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tvar shadowCamera = shadow.camera;\n\n\t\t\t\t_shadowMapSize.copy( shadow.mapSize );\n\t\t\t\t_shadowMapSize.min( _maxShadowMapSize );\n\n\t\t\t\tif ( isPointLight ) {\n\n\t\t\t\t\tvar vpWidth = _shadowMapSize.x;\n\t\t\t\t\tvar vpHeight = _shadowMapSize.y;\n\n\t\t\t\t\t// These viewports map a cube-map onto a 2D texture with the\n\t\t\t\t\t// following orientation:\n\t\t\t\t\t//\n\t\t\t\t\t// xzXZ\n\t\t\t\t\t// y Y\n\t\t\t\t\t//\n\t\t\t\t\t// X - Positive x direction\n\t\t\t\t\t// x - Negative x direction\n\t\t\t\t\t// Y - Positive y direction\n\t\t\t\t\t// y - Negative y direction\n\t\t\t\t\t// Z - Positive z direction\n\t\t\t\t\t// z - Negative z direction\n\n\t\t\t\t\t// positive X\n\t\t\t\t\tcube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// negative X\n\t\t\t\t\tcube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// positive Z\n\t\t\t\t\tcube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// negative Z\n\t\t\t\t\tcube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// positive Y\n\t\t\t\t\tcube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );\n\t\t\t\t\t// negative Y\n\t\t\t\t\tcube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );\n\n\t\t\t\t\t_shadowMapSize.x *= 4.0;\n\t\t\t\t\t_shadowMapSize.y *= 2.0;\n\n\t\t\t\t}\n\n\t\t\t\tif ( shadow.map === null ) {\n\n\t\t\t\t\tvar pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };\n\n\t\t\t\t\tshadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );\n\t\t\t\t\tshadow.map.texture.name = light.name + \".shadowMap\";\n\n\t\t\t\t\tshadowCamera.updateProjectionMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tif ( shadow.isSpotLightShadow ) {\n\n\t\t\t\t\tshadow.update( light );\n\n\t\t\t\t}\n\n\t\t\t\tvar shadowMap = shadow.map;\n\t\t\t\tvar shadowMatrix = shadow.matrix;\n\n\t\t\t\t_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\tshadowCamera.position.copy( _lightPositionWorld );\n\n\t\t\t\tif ( isPointLight ) {\n\n\t\t\t\t\tfaceCount = 6;\n\n\t\t\t\t\t// for point lights we set the shadow matrix to be a translation-only matrix\n\t\t\t\t\t// equal to inverse of the light's position\n\n\t\t\t\t\tshadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfaceCount = 1;\n\n\t\t\t\t\t_lookTarget.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tshadowCamera.lookAt( _lookTarget );\n\t\t\t\t\tshadowCamera.updateMatrixWorld();\n\n\t\t\t\t\t// compute shadow matrix\n\n\t\t\t\t\tshadowMatrix.set(\n\t\t\t\t\t\t0.5, 0.0, 0.0, 0.5,\n\t\t\t\t\t\t0.0, 0.5, 0.0, 0.5,\n\t\t\t\t\t\t0.0, 0.0, 0.5, 0.5,\n\t\t\t\t\t\t0.0, 0.0, 0.0, 1.0\n\t\t\t\t\t);\n\n\t\t\t\t\tshadowMatrix.multiply( shadowCamera.projectionMatrix );\n\t\t\t\t\tshadowMatrix.multiply( shadowCamera.matrixWorldInverse );\n\n\t\t\t\t}\n\n\t\t\t\t_renderer.setRenderTarget( shadowMap );\n\t\t\t\t_renderer.clear();\n\n\t\t\t\t// render shadow map for each cube face (if omni-directional) or\n\t\t\t\t// run a single pass if not\n\n\t\t\t\tfor ( var face = 0; face < faceCount; face ++ ) {\n\n\t\t\t\t\tif ( isPointLight ) {\n\n\t\t\t\t\t\t_lookTarget.copy( shadowCamera.position );\n\t\t\t\t\t\t_lookTarget.add( cubeDirections[ face ] );\n\t\t\t\t\t\tshadowCamera.up.copy( cubeUps[ face ] );\n\t\t\t\t\t\tshadowCamera.lookAt( _lookTarget );\n\t\t\t\t\t\tshadowCamera.updateMatrixWorld();\n\n\t\t\t\t\t\tvar vpDimensions = cube2DViewPorts[ face ];\n\t\t\t\t\t\t_state.viewport( vpDimensions );\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// update camera matrices and frustum\n\n\t\t\t\t\t_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );\n\t\t\t\t\t_frustum.setFromMatrix( _projScreenMatrix );\n\n\t\t\t\t\t// set object matrices & frustum culling\n\n\t\t\t\t\trenderObject( scene, camera, shadowCamera, isPointLight );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tscope.needsUpdate = false;\n\n\t\t};\n\n\t\tfunction getDepthMaterial( object, material, isPointLight, lightPositionWorld, shadowCameraNear, shadowCameraFar ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tvar result = null;\n\n\t\t\tvar materialVariants = _depthMaterials;\n\t\t\tvar customMaterial = object.customDepthMaterial;\n\n\t\t\tif ( isPointLight ) {\n\n\t\t\t\tmaterialVariants = _distanceMaterials;\n\t\t\t\tcustomMaterial = object.customDistanceMaterial;\n\n\t\t\t}\n\n\t\t\tif ( ! customMaterial ) {\n\n\t\t\t\tvar useMorphing = false;\n\n\t\t\t\tif ( material.morphTargets ) {\n\n\t\t\t\t\tif ( geometry && geometry.isBufferGeometry ) {\n\n\t\t\t\t\t\tuseMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;\n\n\t\t\t\t\t} else if ( geometry && geometry.isGeometry ) {\n\n\t\t\t\t\t\tuseMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( object.isSkinnedMesh && material.skinning === false ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );\n\n\t\t\t\t}\n\n\t\t\t\tvar useSkinning = object.isSkinnedMesh && material.skinning;\n\n\t\t\t\tvar variantIndex = 0;\n\n\t\t\t\tif ( useMorphing ) variantIndex |= _MorphingFlag;\n\t\t\t\tif ( useSkinning ) variantIndex |= _SkinningFlag;\n\n\t\t\t\tresult = materialVariants[ variantIndex ];\n\n\t\t\t} else {\n\n\t\t\t\tresult = customMaterial;\n\n\t\t\t}\n\n\t\t\tif ( _renderer.localClippingEnabled &&\n\t\t\t\t\tmaterial.clipShadows === true &&\n\t\t\t\t\tmaterial.clippingPlanes.length !== 0 ) {\n\n\t\t\t\t// in this case we need a unique material instance reflecting the\n\t\t\t\t// appropriate state\n\n\t\t\t\tvar keyA = result.uuid, keyB = material.uuid;\n\n\t\t\t\tvar materialsForVariant = _materialCache[ keyA ];\n\n\t\t\t\tif ( materialsForVariant === undefined ) {\n\n\t\t\t\t\tmaterialsForVariant = {};\n\t\t\t\t\t_materialCache[ keyA ] = materialsForVariant;\n\n\t\t\t\t}\n\n\t\t\t\tvar cachedMaterial = materialsForVariant[ keyB ];\n\n\t\t\t\tif ( cachedMaterial === undefined ) {\n\n\t\t\t\t\tcachedMaterial = result.clone();\n\t\t\t\t\tmaterialsForVariant[ keyB ] = cachedMaterial;\n\n\t\t\t\t}\n\n\t\t\t\tresult = cachedMaterial;\n\n\t\t\t}\n\n\t\t\tresult.visible = material.visible;\n\t\t\tresult.wireframe = material.wireframe;\n\n\t\t\tresult.side = ( material.shadowSide != null ) ? material.shadowSide : shadowSide[ material.side ];\n\n\t\t\tresult.clipShadows = material.clipShadows;\n\t\t\tresult.clippingPlanes = material.clippingPlanes;\n\t\t\tresult.clipIntersection = material.clipIntersection;\n\n\t\t\tresult.wireframeLinewidth = material.wireframeLinewidth;\n\t\t\tresult.linewidth = material.linewidth;\n\n\t\t\tif ( isPointLight && result.isMeshDistanceMaterial ) {\n\n\t\t\t\tresult.referencePosition.copy( lightPositionWorld );\n\t\t\t\tresult.nearDistance = shadowCameraNear;\n\t\t\t\tresult.farDistance = shadowCameraFar;\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t\tfunction renderObject( object, camera, shadowCamera, isPointLight ) {\n\n\t\t\tif ( object.visible === false ) return;\n\n\t\t\tvar visible = object.layers.test( camera.layers );\n\n\t\t\tif ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {\n\n\t\t\t\tif ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {\n\n\t\t\t\t\tobject.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );\n\n\t\t\t\t\tvar geometry = _objects.update( object );\n\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\tvar groups = geometry.groups;\n\n\t\t\t\t\t\tfor ( var k = 0, kl = groups.length; k < kl; k ++ ) {\n\n\t\t\t\t\t\t\tvar group = groups[ k ];\n\t\t\t\t\t\t\tvar groupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\tif ( groupMaterial && groupMaterial.visible ) {\n\n\t\t\t\t\t\t\t\tvar depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );\n\t\t\t\t\t\t\t\t_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( material.visible ) {\n\n\t\t\t\t\t\tvar depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );\n\t\t\t\t\t\t_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\trenderObject( children[ i ], camera, shadowCamera, isPointLight );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLState( gl, extensions, utils, capabilities ) {\n\n\t\tfunction ColorBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar color = new Vector4();\n\t\t\tvar currentColorMask = null;\n\t\t\tvar currentColorClear = new Vector4( 0, 0, 0, 0 );\n\n\t\t\treturn {\n\n\t\t\t\tsetMask: function ( colorMask ) {\n\n\t\t\t\t\tif ( currentColorMask !== colorMask && ! locked ) {\n\n\t\t\t\t\t\tgl.colorMask( colorMask, colorMask, colorMask, colorMask );\n\t\t\t\t\t\tcurrentColorMask = colorMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( r, g, b, a, premultipliedAlpha ) {\n\n\t\t\t\t\tif ( premultipliedAlpha === true ) {\n\n\t\t\t\t\t\tr *= a; g *= a; b *= a;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tcolor.set( r, g, b, a );\n\n\t\t\t\t\tif ( currentColorClear.equals( color ) === false ) {\n\n\t\t\t\t\t\tgl.clearColor( r, g, b, a );\n\t\t\t\t\t\tcurrentColorClear.copy( color );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentColorMask = null;\n\t\t\t\t\tcurrentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\tfunction DepthBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar currentDepthMask = null;\n\t\t\tvar currentDepthFunc = null;\n\t\t\tvar currentDepthClear = null;\n\n\t\t\treturn {\n\n\t\t\t\tsetTest: function ( depthTest ) {\n\n\t\t\t\t\tif ( depthTest ) {\n\n\t\t\t\t\t\tenable( gl.DEPTH_TEST );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tdisable( gl.DEPTH_TEST );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetMask: function ( depthMask ) {\n\n\t\t\t\t\tif ( currentDepthMask !== depthMask && ! locked ) {\n\n\t\t\t\t\t\tgl.depthMask( depthMask );\n\t\t\t\t\t\tcurrentDepthMask = depthMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetFunc: function ( depthFunc ) {\n\n\t\t\t\t\tif ( currentDepthFunc !== depthFunc ) {\n\n\t\t\t\t\t\tif ( depthFunc ) {\n\n\t\t\t\t\t\t\tswitch ( depthFunc ) {\n\n\t\t\t\t\t\t\t\tcase NeverDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.NEVER );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase AlwaysDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.ALWAYS );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase LessDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LESS );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase LessEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase EqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.EQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase GreaterEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.GEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase GreaterDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.GREATER );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase NotEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.NOTEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcurrentDepthFunc = depthFunc;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( depth ) {\n\n\t\t\t\t\tif ( currentDepthClear !== depth ) {\n\n\t\t\t\t\t\tgl.clearDepth( depth );\n\t\t\t\t\t\tcurrentDepthClear = depth;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentDepthMask = null;\n\t\t\t\t\tcurrentDepthFunc = null;\n\t\t\t\t\tcurrentDepthClear = null;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\tfunction StencilBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar currentStencilMask = null;\n\t\t\tvar currentStencilFunc = null;\n\t\t\tvar currentStencilRef = null;\n\t\t\tvar currentStencilFuncMask = null;\n\t\t\tvar currentStencilFail = null;\n\t\t\tvar currentStencilZFail = null;\n\t\t\tvar currentStencilZPass = null;\n\t\t\tvar currentStencilClear = null;\n\n\t\t\treturn {\n\n\t\t\t\tsetTest: function ( stencilTest ) {\n\n\t\t\t\t\tif ( stencilTest ) {\n\n\t\t\t\t\t\tenable( gl.STENCIL_TEST );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tdisable( gl.STENCIL_TEST );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetMask: function ( stencilMask ) {\n\n\t\t\t\t\tif ( currentStencilMask !== stencilMask && ! locked ) {\n\n\t\t\t\t\t\tgl.stencilMask( stencilMask );\n\t\t\t\t\t\tcurrentStencilMask = stencilMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetFunc: function ( stencilFunc, stencilRef, stencilMask ) {\n\n\t\t\t\t\tif ( currentStencilFunc !== stencilFunc ||\n\t\t\t\t\t currentStencilRef \t!== stencilRef \t||\n\t\t\t\t\t currentStencilFuncMask !== stencilMask ) {\n\n\t\t\t\t\t\tgl.stencilFunc( stencilFunc, stencilRef, stencilMask );\n\n\t\t\t\t\t\tcurrentStencilFunc = stencilFunc;\n\t\t\t\t\t\tcurrentStencilRef = stencilRef;\n\t\t\t\t\t\tcurrentStencilFuncMask = stencilMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetOp: function ( stencilFail, stencilZFail, stencilZPass ) {\n\n\t\t\t\t\tif ( currentStencilFail\t !== stencilFail \t||\n\t\t\t\t\t currentStencilZFail !== stencilZFail ||\n\t\t\t\t\t currentStencilZPass !== stencilZPass ) {\n\n\t\t\t\t\t\tgl.stencilOp( stencilFail, stencilZFail, stencilZPass );\n\n\t\t\t\t\t\tcurrentStencilFail = stencilFail;\n\t\t\t\t\t\tcurrentStencilZFail = stencilZFail;\n\t\t\t\t\t\tcurrentStencilZPass = stencilZPass;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( stencil ) {\n\n\t\t\t\t\tif ( currentStencilClear !== stencil ) {\n\n\t\t\t\t\t\tgl.clearStencil( stencil );\n\t\t\t\t\t\tcurrentStencilClear = stencil;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentStencilMask = null;\n\t\t\t\t\tcurrentStencilFunc = null;\n\t\t\t\t\tcurrentStencilRef = null;\n\t\t\t\t\tcurrentStencilFuncMask = null;\n\t\t\t\t\tcurrentStencilFail = null;\n\t\t\t\t\tcurrentStencilZFail = null;\n\t\t\t\t\tcurrentStencilZPass = null;\n\t\t\t\t\tcurrentStencilClear = null;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\t//\n\n\t\tvar colorBuffer = new ColorBuffer();\n\t\tvar depthBuffer = new DepthBuffer();\n\t\tvar stencilBuffer = new StencilBuffer();\n\n\t\tvar maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );\n\t\tvar newAttributes = new Uint8Array( maxVertexAttributes );\n\t\tvar enabledAttributes = new Uint8Array( maxVertexAttributes );\n\t\tvar attributeDivisors = new Uint8Array( maxVertexAttributes );\n\n\t\tvar enabledCapabilities = {};\n\n\t\tvar compressedTextureFormats = null;\n\n\t\tvar currentProgram = null;\n\n\t\tvar currentBlending = null;\n\t\tvar currentBlendEquation = null;\n\t\tvar currentBlendSrc = null;\n\t\tvar currentBlendDst = null;\n\t\tvar currentBlendEquationAlpha = null;\n\t\tvar currentBlendSrcAlpha = null;\n\t\tvar currentBlendDstAlpha = null;\n\t\tvar currentPremultipledAlpha = false;\n\n\t\tvar currentFlipSided = null;\n\t\tvar currentCullFace = null;\n\n\t\tvar currentLineWidth = null;\n\n\t\tvar currentPolygonOffsetFactor = null;\n\t\tvar currentPolygonOffsetUnits = null;\n\n\t\tvar maxTextures = gl.getParameter( gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS );\n\n\t\tvar lineWidthAvailable = false;\n\t\tvar version = 0;\n\t\tvar glVersion = gl.getParameter( gl.VERSION );\n\n\t\tif ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {\n\n\t\t\tversion = parseFloat( /^WebGL\\ ([0-9])/.exec( glVersion )[ 1 ] );\n\t\t\tlineWidthAvailable = ( version >= 1.0 );\n\n\t\t} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {\n\n\t\t\tversion = parseFloat( /^OpenGL\\ ES\\ ([0-9])/.exec( glVersion )[ 1 ] );\n\t\t\tlineWidthAvailable = ( version >= 2.0 );\n\n\t\t}\n\n\t\tvar currentTextureSlot = null;\n\t\tvar currentBoundTextures = {};\n\n\t\tvar currentScissor = new Vector4();\n\t\tvar currentViewport = new Vector4();\n\n\t\tfunction createTexture( type, target, count ) {\n\n\t\t\tvar data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.\n\t\t\tvar texture = gl.createTexture();\n\n\t\t\tgl.bindTexture( type, texture );\n\t\t\tgl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST );\n\t\t\tgl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST );\n\n\t\t\tfor ( var i = 0; i < count; i ++ ) {\n\n\t\t\t\tgl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t}\n\n\t\tvar emptyTextures = {};\n\t\temptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 );\n\t\temptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 );\n\n\t\t// init\n\n\t\tcolorBuffer.setClear( 0, 0, 0, 1 );\n\t\tdepthBuffer.setClear( 1 );\n\t\tstencilBuffer.setClear( 0 );\n\n\t\tenable( gl.DEPTH_TEST );\n\t\tdepthBuffer.setFunc( LessEqualDepth );\n\n\t\tsetFlipSided( false );\n\t\tsetCullFace( CullFaceBack );\n\t\tenable( gl.CULL_FACE );\n\n\t\tenable( gl.BLEND );\n\t\tsetBlending( NormalBlending );\n\n\t\t//\n\n\t\tfunction initAttributes() {\n\n\t\t\tfor ( var i = 0, l = newAttributes.length; i < l; i ++ ) {\n\n\t\t\t\tnewAttributes[ i ] = 0;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction enableAttribute( attribute ) {\n\n\t\t\tenableAttributeAndDivisor( attribute, 0 );\n\n\t\t}\n\n\t\tfunction enableAttributeAndDivisor( attribute, meshPerAttribute ) {\n\n\t\t\tnewAttributes[ attribute ] = 1;\n\n\t\t\tif ( enabledAttributes[ attribute ] === 0 ) {\n\n\t\t\t\tgl.enableVertexAttribArray( attribute );\n\t\t\t\tenabledAttributes[ attribute ] = 1;\n\n\t\t\t}\n\n\t\t\tif ( attributeDivisors[ attribute ] !== meshPerAttribute ) {\n\n\t\t\t\tvar extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\textension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute );\n\t\t\t\tattributeDivisors[ attribute ] = meshPerAttribute;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction disableUnusedAttributes() {\n\n\t\t\tfor ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {\n\n\t\t\t\tif ( enabledAttributes[ i ] !== newAttributes[ i ] ) {\n\n\t\t\t\t\tgl.disableVertexAttribArray( i );\n\t\t\t\t\tenabledAttributes[ i ] = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction enable( id ) {\n\n\t\t\tif ( enabledCapabilities[ id ] !== true ) {\n\n\t\t\t\tgl.enable( id );\n\t\t\t\tenabledCapabilities[ id ] = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction disable( id ) {\n\n\t\t\tif ( enabledCapabilities[ id ] !== false ) {\n\n\t\t\t\tgl.disable( id );\n\t\t\t\tenabledCapabilities[ id ] = false;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getCompressedTextureFormats() {\n\n\t\t\tif ( compressedTextureFormats === null ) {\n\n\t\t\t\tcompressedTextureFormats = [];\n\n\t\t\t\tif ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_etc1' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_astc' ) ) {\n\n\t\t\t\t\tvar formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );\n\n\t\t\t\t\tfor ( var i = 0; i < formats.length; i ++ ) {\n\n\t\t\t\t\t\tcompressedTextureFormats.push( formats[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn compressedTextureFormats;\n\n\t\t}\n\n\t\tfunction useProgram( program ) {\n\n\t\t\tif ( currentProgram !== program ) {\n\n\t\t\t\tgl.useProgram( program );\n\n\t\t\t\tcurrentProgram = program;\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\treturn false;\n\n\t\t}\n\n\t\tfunction setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {\n\n\t\t\tif ( blending !== NoBlending ) {\n\n\t\t\t\tenable( gl.BLEND );\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.BLEND );\n\n\t\t\t}\n\n\t\t\tif ( blending !== CustomBlending ) {\n\n\t\t\t\tif ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {\n\n\t\t\t\t\tswitch ( blending ) {\n\n\t\t\t\t\t\tcase AdditiveBlending:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ONE, gl.ONE, gl.ONE, gl.ONE );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFunc( gl.SRC_ALPHA, gl.ONE );\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase SubtractiveBlending:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase MultiplyBlending:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFunc( gl.ZERO, gl.SRC_COLOR );\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tcurrentBlendEquation = null;\n\t\t\t\tcurrentBlendSrc = null;\n\t\t\t\tcurrentBlendDst = null;\n\t\t\t\tcurrentBlendEquationAlpha = null;\n\t\t\t\tcurrentBlendSrcAlpha = null;\n\t\t\t\tcurrentBlendDstAlpha = null;\n\n\t\t\t} else {\n\n\t\t\t\tblendEquationAlpha = blendEquationAlpha || blendEquation;\n\t\t\t\tblendSrcAlpha = blendSrcAlpha || blendSrc;\n\t\t\t\tblendDstAlpha = blendDstAlpha || blendDst;\n\n\t\t\t\tif ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {\n\n\t\t\t\t\tgl.blendEquationSeparate( utils.convert( blendEquation ), utils.convert( blendEquationAlpha ) );\n\n\t\t\t\t\tcurrentBlendEquation = blendEquation;\n\t\t\t\t\tcurrentBlendEquationAlpha = blendEquationAlpha;\n\n\t\t\t\t}\n\n\t\t\t\tif ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {\n\n\t\t\t\t\tgl.blendFuncSeparate( utils.convert( blendSrc ), utils.convert( blendDst ), utils.convert( blendSrcAlpha ), utils.convert( blendDstAlpha ) );\n\n\t\t\t\t\tcurrentBlendSrc = blendSrc;\n\t\t\t\t\tcurrentBlendDst = blendDst;\n\t\t\t\t\tcurrentBlendSrcAlpha = blendSrcAlpha;\n\t\t\t\t\tcurrentBlendDstAlpha = blendDstAlpha;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tcurrentBlending = blending;\n\t\t\tcurrentPremultipledAlpha = premultipliedAlpha;\n\n\t\t}\n\n\t\tfunction setMaterial( material, frontFaceCW ) {\n\n\t\t\tmaterial.side === DoubleSide\n\t\t\t\t? disable( gl.CULL_FACE )\n\t\t\t\t: enable( gl.CULL_FACE );\n\n\t\t\tvar flipSided = ( material.side === BackSide );\n\t\t\tif ( frontFaceCW ) flipSided = ! flipSided;\n\n\t\t\tsetFlipSided( flipSided );\n\n\t\t\t( material.blending === NormalBlending && material.transparent === false )\n\t\t\t\t? setBlending( NoBlending )\n\t\t\t\t: setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );\n\n\t\t\tdepthBuffer.setFunc( material.depthFunc );\n\t\t\tdepthBuffer.setTest( material.depthTest );\n\t\t\tdepthBuffer.setMask( material.depthWrite );\n\t\t\tcolorBuffer.setMask( material.colorWrite );\n\n\t\t\tsetPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );\n\n\t\t}\n\n\t\t//\n\n\t\tfunction setFlipSided( flipSided ) {\n\n\t\t\tif ( currentFlipSided !== flipSided ) {\n\n\t\t\t\tif ( flipSided ) {\n\n\t\t\t\t\tgl.frontFace( gl.CW );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tgl.frontFace( gl.CCW );\n\n\t\t\t\t}\n\n\t\t\t\tcurrentFlipSided = flipSided;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setCullFace( cullFace ) {\n\n\t\t\tif ( cullFace !== CullFaceNone ) {\n\n\t\t\t\tenable( gl.CULL_FACE );\n\n\t\t\t\tif ( cullFace !== currentCullFace ) {\n\n\t\t\t\t\tif ( cullFace === CullFaceBack ) {\n\n\t\t\t\t\t\tgl.cullFace( gl.BACK );\n\n\t\t\t\t\t} else if ( cullFace === CullFaceFront ) {\n\n\t\t\t\t\t\tgl.cullFace( gl.FRONT );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tgl.cullFace( gl.FRONT_AND_BACK );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.CULL_FACE );\n\n\t\t\t}\n\n\t\t\tcurrentCullFace = cullFace;\n\n\t\t}\n\n\t\tfunction setLineWidth( width ) {\n\n\t\t\tif ( width !== currentLineWidth ) {\n\n\t\t\t\tif ( lineWidthAvailable ) gl.lineWidth( width );\n\n\t\t\t\tcurrentLineWidth = width;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setPolygonOffset( polygonOffset, factor, units ) {\n\n\t\t\tif ( polygonOffset ) {\n\n\t\t\t\tenable( gl.POLYGON_OFFSET_FILL );\n\n\t\t\t\tif ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {\n\n\t\t\t\t\tgl.polygonOffset( factor, units );\n\n\t\t\t\t\tcurrentPolygonOffsetFactor = factor;\n\t\t\t\t\tcurrentPolygonOffsetUnits = units;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.POLYGON_OFFSET_FILL );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setScissorTest( scissorTest ) {\n\n\t\t\tif ( scissorTest ) {\n\n\t\t\t\tenable( gl.SCISSOR_TEST );\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.SCISSOR_TEST );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// texture\n\n\t\tfunction activeTexture( webglSlot ) {\n\n\t\t\tif ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;\n\n\t\t\tif ( currentTextureSlot !== webglSlot ) {\n\n\t\t\t\tgl.activeTexture( webglSlot );\n\t\t\t\tcurrentTextureSlot = webglSlot;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction bindTexture( webglType, webglTexture ) {\n\n\t\t\tif ( currentTextureSlot === null ) {\n\n\t\t\t\tactiveTexture();\n\n\t\t\t}\n\n\t\t\tvar boundTexture = currentBoundTextures[ currentTextureSlot ];\n\n\t\t\tif ( boundTexture === undefined ) {\n\n\t\t\t\tboundTexture = { type: undefined, texture: undefined };\n\t\t\t\tcurrentBoundTextures[ currentTextureSlot ] = boundTexture;\n\n\t\t\t}\n\n\t\t\tif ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {\n\n\t\t\t\tgl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );\n\n\t\t\t\tboundTexture.type = webglType;\n\t\t\t\tboundTexture.texture = webglTexture;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction compressedTexImage2D() {\n\n\t\t\ttry {\n\n\t\t\t\tgl.compressedTexImage2D.apply( gl, arguments );\n\n\t\t\t} catch ( error ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLState:', error );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction texImage2D() {\n\n\t\t\ttry {\n\n\t\t\t\tgl.texImage2D.apply( gl, arguments );\n\n\t\t\t} catch ( error ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLState:', error );\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tfunction scissor( scissor ) {\n\n\t\t\tif ( currentScissor.equals( scissor ) === false ) {\n\n\t\t\t\tgl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );\n\t\t\t\tcurrentScissor.copy( scissor );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction viewport( viewport ) {\n\n\t\t\tif ( currentViewport.equals( viewport ) === false ) {\n\n\t\t\t\tgl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );\n\t\t\t\tcurrentViewport.copy( viewport );\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tfunction reset() {\n\n\t\t\tfor ( var i = 0; i < enabledAttributes.length; i ++ ) {\n\n\t\t\t\tif ( enabledAttributes[ i ] === 1 ) {\n\n\t\t\t\t\tgl.disableVertexAttribArray( i );\n\t\t\t\t\tenabledAttributes[ i ] = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tenabledCapabilities = {};\n\n\t\t\tcompressedTextureFormats = null;\n\n\t\t\tcurrentTextureSlot = null;\n\t\t\tcurrentBoundTextures = {};\n\n\t\t\tcurrentProgram = null;\n\n\t\t\tcurrentBlending = null;\n\n\t\t\tcurrentFlipSided = null;\n\t\t\tcurrentCullFace = null;\n\n\t\t\tcolorBuffer.reset();\n\t\t\tdepthBuffer.reset();\n\t\t\tstencilBuffer.reset();\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tbuffers: {\n\t\t\t\tcolor: colorBuffer,\n\t\t\t\tdepth: depthBuffer,\n\t\t\t\tstencil: stencilBuffer\n\t\t\t},\n\n\t\t\tinitAttributes: initAttributes,\n\t\t\tenableAttribute: enableAttribute,\n\t\t\tenableAttributeAndDivisor: enableAttributeAndDivisor,\n\t\t\tdisableUnusedAttributes: disableUnusedAttributes,\n\t\t\tenable: enable,\n\t\t\tdisable: disable,\n\t\t\tgetCompressedTextureFormats: getCompressedTextureFormats,\n\n\t\t\tuseProgram: useProgram,\n\n\t\t\tsetBlending: setBlending,\n\t\t\tsetMaterial: setMaterial,\n\n\t\t\tsetFlipSided: setFlipSided,\n\t\t\tsetCullFace: setCullFace,\n\n\t\t\tsetLineWidth: setLineWidth,\n\t\t\tsetPolygonOffset: setPolygonOffset,\n\n\t\t\tsetScissorTest: setScissorTest,\n\n\t\t\tactiveTexture: activeTexture,\n\t\t\tbindTexture: bindTexture,\n\t\t\tcompressedTexImage2D: compressedTexImage2D,\n\t\t\ttexImage2D: texImage2D,\n\n\t\t\tscissor: scissor,\n\t\t\tviewport: viewport,\n\n\t\t\treset: reset\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) {\n\n\t\tvar _videoTextures = {};\n\t\tvar _canvas;\n\n\t\t//\n\n\t\tfunction clampToMaxSize( image, maxSize ) {\n\n\t\t\tif ( image.width > maxSize || image.height > maxSize ) {\n\n\t\t\t\tif ( 'data' in image ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image in DataTexture is too big (' + image.width + 'x' + image.height + ').' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\t// Warning: Scaling through the canvas will only work with images that use\n\t\t\t\t// premultiplied alpha.\n\n\t\t\t\tvar scale = maxSize / Math.max( image.width, image.height );\n\n\t\t\t\tvar canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\t\tcanvas.width = Math.floor( image.width * scale );\n\t\t\t\tcanvas.height = Math.floor( image.height * scale );\n\n\t\t\t\tvar context = canvas.getContext( '2d' );\n\t\t\t\tcontext.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height );\n\n\t\t\t\treturn canvas;\n\n\t\t\t}\n\n\t\t\treturn image;\n\n\t\t}\n\n\t\tfunction isPowerOfTwo( image ) {\n\n\t\t\treturn _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );\n\n\t\t}\n\n\t\tfunction makePowerOfTwo( image ) {\n\n\t\t\tif ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement || image instanceof ImageBitmap ) {\n\n\t\t\t\tif ( _canvas === undefined ) _canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\n\t\t\t\t_canvas.width = _Math.floorPowerOfTwo( image.width );\n\t\t\t\t_canvas.height = _Math.floorPowerOfTwo( image.height );\n\n\t\t\t\tvar context = _canvas.getContext( '2d' );\n\t\t\t\tcontext.drawImage( image, 0, 0, _canvas.width, _canvas.height );\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + _canvas.width + 'x' + _canvas.height, image );\n\n\t\t\t\treturn _canvas;\n\n\t\t\t}\n\n\t\t\treturn image;\n\n\t\t}\n\n\t\tfunction textureNeedsPowerOfTwo( texture ) {\n\n\t\t\tif ( capabilities.isWebGL2 ) return false;\n\n\t\t\treturn ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||\n\t\t\t\t( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );\n\n\t\t}\n\n\t\tfunction textureNeedsGenerateMipmaps( texture, isPowerOfTwo ) {\n\n\t\t\treturn texture.generateMipmaps && isPowerOfTwo &&\n\t\t\t\ttexture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;\n\n\t\t}\n\n\t\tfunction generateMipmap( target, texture, width, height ) {\n\n\t\t\t_gl.generateMipmap( target );\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\t// Note: Math.log( x ) * Math.LOG2E used instead of Math.log2( x ) which is not supported by IE11\n\t\t\ttextureProperties.__maxMipLevel = Math.log( Math.max( width, height ) ) * Math.LOG2E;\n\n\t\t}\n\n\t\tfunction getInternalFormat( glFormat, glType ) {\n\n\t\t\tif ( ! capabilities.isWebGL2 ) return glFormat;\n\n\t\t\tif ( glFormat === _gl.RGB ) {\n\n\t\t\t\tif ( glType === _gl.FLOAT ) return _gl.RGB32F;\n\t\t\t\tif ( glType === _gl.HALF_FLOAT ) return _gl.RGB16F;\n\t\t\t\tif ( glType === _gl.UNSIGNED_BYTE ) return _gl.RGB8;\n\n\t\t\t}\n\n\t\t\tif ( glFormat === _gl.RGBA ) {\n\n\t\t\t\tif ( glType === _gl.FLOAT ) return _gl.RGBA32F;\n\t\t\t\tif ( glType === _gl.HALF_FLOAT ) return _gl.RGBA16F;\n\t\t\t\tif ( glType === _gl.UNSIGNED_BYTE ) return _gl.RGBA8;\n\n\t\t\t}\n\n\t\t\treturn glFormat;\n\n\t\t}\n\n\t\t// Fallback filters for non-power-of-2 textures\n\n\t\tfunction filterFallback( f ) {\n\n\t\t\tif ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {\n\n\t\t\t\treturn _gl.NEAREST;\n\n\t\t\t}\n\n\t\t\treturn _gl.LINEAR;\n\n\t\t}\n\n\t\t//\n\n\t\tfunction onTextureDispose( event ) {\n\n\t\t\tvar texture = event.target;\n\n\t\t\ttexture.removeEventListener( 'dispose', onTextureDispose );\n\n\t\t\tdeallocateTexture( texture );\n\n\t\t\tif ( texture.isVideoTexture ) {\n\n\t\t\t\tdelete _videoTextures[ texture.id ];\n\n\t\t\t}\n\n\t\t\tinfo.memory.textures --;\n\n\t\t}\n\n\t\tfunction onRenderTargetDispose( event ) {\n\n\t\t\tvar renderTarget = event.target;\n\n\t\t\trenderTarget.removeEventListener( 'dispose', onRenderTargetDispose );\n\n\t\t\tdeallocateRenderTarget( renderTarget );\n\n\t\t\tinfo.memory.textures --;\n\n\t\t}\n\n\t\t//\n\n\t\tfunction deallocateTexture( texture ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.image && textureProperties.__image__webglTextureCube ) {\n\n\t\t\t\t// cube texture\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__image__webglTextureCube );\n\n\t\t\t} else {\n\n\t\t\t\t// 2D texture\n\n\t\t\t\tif ( textureProperties.__webglInit === undefined ) return;\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__webglTexture );\n\n\t\t\t}\n\n\t\t\t// remove all webgl properties\n\t\t\tproperties.remove( texture );\n\n\t\t}\n\n\t\tfunction deallocateRenderTarget( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\n\t\t\tif ( ! renderTarget ) return;\n\n\t\t\tif ( textureProperties.__webglTexture !== undefined ) {\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__webglTexture );\n\n\t\t\t}\n\n\t\t\tif ( renderTarget.depthTexture ) {\n\n\t\t\t\trenderTarget.depthTexture.dispose();\n\n\t\t\t}\n\n\t\t\tif ( renderTarget.isWebGLRenderTargetCube ) {\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );\n\t\t\t\t\tif ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );\n\t\t\t\tif ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );\n\n\t\t\t}\n\n\t\t\tproperties.remove( renderTarget.texture );\n\t\t\tproperties.remove( renderTarget );\n\n\t\t}\n\n\t\t//\n\n\n\n\t\tfunction setTexture2D( texture, slot ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.isVideoTexture ) updateVideoTexture( texture );\n\n\t\t\tif ( texture.version > 0 && textureProperties.__version !== texture.version ) {\n\n\t\t\t\tvar image = texture.image;\n\n\t\t\t\tif ( image === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' );\n\n\t\t\t\t} else if ( image.complete === false ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tuploadTexture( textureProperties, texture, slot );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\n\t\t}\n\n\t\tfunction setTextureCube( texture, slot ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.image.length === 6 ) {\n\n\t\t\t\tif ( texture.version > 0 && textureProperties.__version !== texture.version ) {\n\n\t\t\t\t\tif ( ! textureProperties.__image__webglTextureCube ) {\n\n\t\t\t\t\t\ttexture.addEventListener( 'dispose', onTextureDispose );\n\n\t\t\t\t\t\ttextureProperties.__image__webglTextureCube = _gl.createTexture();\n\n\t\t\t\t\t\tinfo.memory.textures ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );\n\n\t\t\t\t\t_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );\n\n\t\t\t\t\tvar isCompressed = ( texture && texture.isCompressedTexture );\n\t\t\t\t\tvar isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );\n\n\t\t\t\t\tvar cubeImage = [];\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\tif ( ! isCompressed && ! isDataTexture ) {\n\n\t\t\t\t\t\t\tcubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tcubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar image = cubeImage[ 0 ],\n\t\t\t\t\t\tisPowerOfTwoImage = isPowerOfTwo( image ),\n\t\t\t\t\t\tglFormat = utils.convert( texture.format ),\n\t\t\t\t\t\tglType = utils.convert( texture.type ),\n\t\t\t\t\t\tglInternalFormat = getInternalFormat( glFormat, glType );\n\n\t\t\t\t\tsetTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage );\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\tif ( ! isCompressed ) {\n\n\t\t\t\t\t\t\tif ( isDataTexture ) {\n\n\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar mipmap, mipmaps = cubeImage[ i ].mipmaps;\n\n\t\t\t\t\t\t\tfor ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tmipmap = mipmaps[ j ];\n\n\t\t\t\t\t\t\t\tif ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {\n\n\t\t\t\t\t\t\t\t\tif ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {\n\n\t\t\t\t\t\t\t\t\t\tstate.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );\n\n\t\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( ! isCompressed ) {\n\n\t\t\t\t\t\ttextureProperties.__maxMipLevel = 0;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {\n\n\t\t\t\t\t\t// We assume images for cube map have the same size.\n\t\t\t\t\t\tgenerateMipmap( _gl.TEXTURE_CUBE_MAP, texture, image.width, image.height );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttextureProperties.__version = texture.version;\n\n\t\t\t\t\tif ( texture.onUpdate ) texture.onUpdate( texture );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setTextureCubeDynamic( texture, slot ) {\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );\n\n\t\t}\n\n\t\tfunction setTextureParameters( textureType, texture, isPowerOfTwoImage ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( isPowerOfTwoImage ) {\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, utils.convert( texture.wrapS ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, utils.convert( texture.wrapT ) );\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, utils.convert( texture.magFilter ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, utils.convert( texture.minFilter ) );\n\n\t\t\t} else {\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );\n\n\t\t\t\tif ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' );\n\n\t\t\t\t}\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );\n\n\t\t\t\tif ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\textension = extensions.get( 'EXT_texture_filter_anisotropic' );\n\n\t\t\tif ( extension ) {\n\n\t\t\t\tif ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;\n\t\t\t\tif ( texture.type === HalfFloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_half_float_linear' ) ) === null ) return;\n\n\t\t\t\tif ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {\n\n\t\t\t\t\t_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );\n\t\t\t\t\tproperties.get( texture ).__currentAnisotropy = texture.anisotropy;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction uploadTexture( textureProperties, texture, slot ) {\n\n\t\t\tif ( textureProperties.__webglInit === undefined ) {\n\n\t\t\t\ttextureProperties.__webglInit = true;\n\n\t\t\t\ttexture.addEventListener( 'dispose', onTextureDispose );\n\n\t\t\t\ttextureProperties.__webglTexture = _gl.createTexture();\n\n\t\t\t\tinfo.memory.textures ++;\n\n\t\t\t}\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\n\t\t\t_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );\n\t\t\t_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );\n\t\t\t_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );\n\n\t\t\tvar image = clampToMaxSize( texture.image, capabilities.maxTextureSize );\n\n\t\t\tif ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) {\n\n\t\t\t\timage = makePowerOfTwo( image );\n\n\t\t\t}\n\n\t\t\tvar isPowerOfTwoImage = isPowerOfTwo( image ),\n\t\t\t\tglFormat = utils.convert( texture.format ),\n\t\t\t\tglType = utils.convert( texture.type ),\n\t\t\t\tglInternalFormat = getInternalFormat( glFormat, glType );\n\n\t\t\tsetTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage );\n\n\t\t\tvar mipmap, mipmaps = texture.mipmaps;\n\n\t\t\tif ( texture.isDepthTexture ) {\n\n\t\t\t\t// populate depth texture with dummy data\n\n\t\t\t\tglInternalFormat = _gl.DEPTH_COMPONENT;\n\n\t\t\t\tif ( texture.type === FloatType ) {\n\n\t\t\t\t\tif ( ! capabilities.isWebGL2 ) throw new Error( 'Float Depth Texture only supported in WebGL2.0' );\n\t\t\t\t\tglInternalFormat = _gl.DEPTH_COMPONENT32F;\n\n\t\t\t\t} else if ( capabilities.isWebGL2 ) {\n\n\t\t\t\t\t// WebGL 2.0 requires signed internalformat for glTexImage2D\n\t\t\t\t\tglInternalFormat = _gl.DEPTH_COMPONENT16;\n\n\t\t\t\t}\n\n\t\t\t\tif ( texture.format === DepthFormat && glInternalFormat === _gl.DEPTH_COMPONENT ) {\n\n\t\t\t\t\t// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are\n\t\t\t\t\t// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT\n\t\t\t\t\t// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)\n\t\t\t\t\tif ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );\n\n\t\t\t\t\t\ttexture.type = UnsignedShortType;\n\t\t\t\t\t\tglType = utils.convert( texture.type );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// Depth stencil textures need the DEPTH_STENCIL internal format\n\t\t\t\t// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)\n\t\t\t\tif ( texture.format === DepthStencilFormat ) {\n\n\t\t\t\t\tglInternalFormat = _gl.DEPTH_STENCIL;\n\n\t\t\t\t\t// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are\n\t\t\t\t\t// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.\n\t\t\t\t\t// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)\n\t\t\t\t\tif ( texture.type !== UnsignedInt248Type ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );\n\n\t\t\t\t\t\ttexture.type = UnsignedInt248Type;\n\t\t\t\t\t\tglType = utils.convert( texture.type );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );\n\n\t\t\t} else if ( texture.isDataTexture ) {\n\n\t\t\t\t// use manually created mipmaps if available\n\t\t\t\t// if there are no manual mipmaps\n\t\t\t\t// set 0 level mipmap and then use GL to generate other mipmap levels\n\n\t\t\t\tif ( mipmaps.length > 0 && isPowerOfTwoImage ) {\n\n\t\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tmipmap = mipmaps[ i ];\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.generateMipmaps = false;\n\t\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data );\n\t\t\t\t\ttextureProperties.__maxMipLevel = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( texture.isCompressedTexture ) {\n\n\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\tmipmap = mipmaps[ i ];\n\n\t\t\t\t\tif ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {\n\n\t\t\t\t\t\tif ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {\n\n\t\t\t\t\t\t\tstate.compressedTexImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t} else {\n\n\t\t\t\t// regular Texture (image, video, canvas)\n\n\t\t\t\t// use manually created mipmaps if available\n\t\t\t\t// if there are no manual mipmaps\n\t\t\t\t// set 0 level mipmap and then use GL to generate other mipmap levels\n\n\t\t\t\tif ( mipmaps.length > 0 && isPowerOfTwoImage ) {\n\n\t\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tmipmap = mipmaps[ i ];\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, glFormat, glType, mipmap );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.generateMipmaps = false;\n\t\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, glFormat, glType, image );\n\t\t\t\t\ttextureProperties.__maxMipLevel = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {\n\n\t\t\t\tgenerateMipmap( _gl.TEXTURE_2D, texture, image.width, image.height );\n\n\t\t\t}\n\n\t\t\ttextureProperties.__version = texture.version;\n\n\t\t\tif ( texture.onUpdate ) texture.onUpdate( texture );\n\n\t\t}\n\n\t\t// Render targets\n\n\t\t// Setup storage for target texture and bind it to correct framebuffer\n\t\tfunction setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {\n\n\t\t\tvar glFormat = utils.convert( renderTarget.texture.format );\n\t\t\tvar glType = utils.convert( renderTarget.texture.type );\n\t\t\tvar glInternalFormat = getInternalFormat( glFormat, glType );\n\t\t\tstate.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );\n\n\t\t}\n\n\t\t// Setup storage for internal depth/stencil buffers and bind to correct framebuffer\n\t\tfunction setupRenderBufferStorage( renderbuffer, renderTarget ) {\n\n\t\t\t_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\tif ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {\n\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );\n\t\t\t\t_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\t} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {\n\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );\n\t\t\t\t_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\t} else {\n\n\t\t\t\t// FIXME: We don't support !depth !stencil\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );\n\n\t\t\t}\n\n\t\t\t_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );\n\n\t\t}\n\n\t\t// Setup resources for a Depth Texture for a FBO (needs an extension)\n\t\tfunction setupDepthTexture( framebuffer, renderTarget ) {\n\n\t\t\tvar isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );\n\t\t\tif ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );\n\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\n\t\t\tif ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {\n\n\t\t\t\tthrow new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );\n\n\t\t\t}\n\n\t\t\t// upload an empty depth texture with framebuffer size\n\t\t\tif ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||\n\t\t\t\t\trenderTarget.depthTexture.image.width !== renderTarget.width ||\n\t\t\t\t\trenderTarget.depthTexture.image.height !== renderTarget.height ) {\n\n\t\t\t\trenderTarget.depthTexture.image.width = renderTarget.width;\n\t\t\t\trenderTarget.depthTexture.image.height = renderTarget.height;\n\t\t\t\trenderTarget.depthTexture.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tsetTexture2D( renderTarget.depthTexture, 0 );\n\n\t\t\tvar webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;\n\n\t\t\tif ( renderTarget.depthTexture.format === DepthFormat ) {\n\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );\n\n\t\t\t} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {\n\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );\n\n\t\t\t} else {\n\n\t\t\t\tthrow new Error( 'Unknown depthTexture format' );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Setup GL resources for a non-texture depth buffer\n\t\tfunction setupDepthRenderbuffer( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\n\t\t\tvar isCube = ( renderTarget.isWebGLRenderTargetCube === true );\n\n\t\t\tif ( renderTarget.depthTexture ) {\n\n\t\t\t\tif ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );\n\n\t\t\t\tsetupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );\n\n\t\t\t} else {\n\n\t\t\t\tif ( isCube ) {\n\n\t\t\t\t\trenderTargetProperties.__webglDepthbuffer = [];\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );\n\t\t\t\t\t\trenderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();\n\t\t\t\t\t\tsetupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );\n\t\t\t\t\trenderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();\n\t\t\t\t\tsetupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );\n\n\t\t}\n\n\t\t// Set up GL resources for the render target\n\t\tfunction setupRenderTarget( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\n\t\t\trenderTarget.addEventListener( 'dispose', onRenderTargetDispose );\n\n\t\t\ttextureProperties.__webglTexture = _gl.createTexture();\n\n\t\t\tinfo.memory.textures ++;\n\n\t\t\tvar isCube = ( renderTarget.isWebGLRenderTargetCube === true );\n\t\t\tvar isTargetPowerOfTwo = isPowerOfTwo( renderTarget );\n\n\t\t\t// Setup framebuffer\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\trenderTargetProperties.__webglFramebuffer = [];\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\trenderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\trenderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();\n\n\t\t\t}\n\n\t\t\t// Setup color buffer\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );\n\t\t\t\tsetTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\tsetupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );\n\n\t\t\t\t}\n\n\t\t\t\tif ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) {\n\n\t\t\t\t\tgenerateMipmap( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, renderTarget.width, renderTarget.height );\n\n\t\t\t\t}\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, null );\n\n\t\t\t} else {\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\t\t\t\tsetTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );\n\t\t\t\tsetupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );\n\n\t\t\t\tif ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) {\n\n\t\t\t\t\tgenerateMipmap( _gl.TEXTURE_2D, renderTarget.texture, renderTarget.width, renderTarget.height );\n\n\t\t\t\t}\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_2D, null );\n\n\t\t\t}\n\n\t\t\t// Setup depth and stencil buffers\n\n\t\t\tif ( renderTarget.depthBuffer ) {\n\n\t\t\t\tsetupDepthRenderbuffer( renderTarget );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction updateRenderTargetMipmap( renderTarget ) {\n\n\t\t\tvar texture = renderTarget.texture;\n\t\t\tvar isTargetPowerOfTwo = isPowerOfTwo( renderTarget );\n\n\t\t\tif ( textureNeedsGenerateMipmaps( texture, isTargetPowerOfTwo ) ) {\n\n\t\t\t\tvar target = renderTarget.isWebGLRenderTargetCube ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;\n\t\t\t\tvar webglTexture = properties.get( texture ).__webglTexture;\n\n\t\t\t\tstate.bindTexture( target, webglTexture );\n\t\t\t\tgenerateMipmap( target, texture, renderTarget.width, renderTarget.height );\n\t\t\t\tstate.bindTexture( target, null );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction updateVideoTexture( texture ) {\n\n\t\t\tvar id = texture.id;\n\t\t\tvar frame = info.render.frame;\n\n\t\t\t// Check the last frame we updated the VideoTexture\n\n\t\t\tif ( _videoTextures[ id ] !== frame ) {\n\n\t\t\t\t_videoTextures[ id ] = frame;\n\t\t\t\ttexture.update();\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.setTexture2D = setTexture2D;\n\t\tthis.setTextureCube = setTextureCube;\n\t\tthis.setTextureCubeDynamic = setTextureCubeDynamic;\n\t\tthis.setupRenderTarget = setupRenderTarget;\n\t\tthis.updateRenderTargetMipmap = updateRenderTargetMipmap;\n\n\t}\n\n\t/**\n\t * @author thespite / http://www.twitter.com/thespite\n\t */\n\n\tfunction WebGLUtils( gl, extensions, capabilities ) {\n\n\t\tfunction convert( p ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( p === RepeatWrapping ) return gl.REPEAT;\n\t\t\tif ( p === ClampToEdgeWrapping ) return gl.CLAMP_TO_EDGE;\n\t\t\tif ( p === MirroredRepeatWrapping ) return gl.MIRRORED_REPEAT;\n\n\t\t\tif ( p === NearestFilter ) return gl.NEAREST;\n\t\t\tif ( p === NearestMipMapNearestFilter ) return gl.NEAREST_MIPMAP_NEAREST;\n\t\t\tif ( p === NearestMipMapLinearFilter ) return gl.NEAREST_MIPMAP_LINEAR;\n\n\t\t\tif ( p === LinearFilter ) return gl.LINEAR;\n\t\t\tif ( p === LinearMipMapNearestFilter ) return gl.LINEAR_MIPMAP_NEAREST;\n\t\t\tif ( p === LinearMipMapLinearFilter ) return gl.LINEAR_MIPMAP_LINEAR;\n\n\t\t\tif ( p === UnsignedByteType ) return gl.UNSIGNED_BYTE;\n\t\t\tif ( p === UnsignedShort4444Type ) return gl.UNSIGNED_SHORT_4_4_4_4;\n\t\t\tif ( p === UnsignedShort5551Type ) return gl.UNSIGNED_SHORT_5_5_5_1;\n\t\t\tif ( p === UnsignedShort565Type ) return gl.UNSIGNED_SHORT_5_6_5;\n\n\t\t\tif ( p === ByteType ) return gl.BYTE;\n\t\t\tif ( p === ShortType ) return gl.SHORT;\n\t\t\tif ( p === UnsignedShortType ) return gl.UNSIGNED_SHORT;\n\t\t\tif ( p === IntType ) return gl.INT;\n\t\t\tif ( p === UnsignedIntType ) return gl.UNSIGNED_INT;\n\t\t\tif ( p === FloatType ) return gl.FLOAT;\n\n\t\t\tif ( p === HalfFloatType ) {\n\n\t\t\t\tif ( capabilities.isWebGL2 ) return gl.HALF_FLOAT;\n\n\t\t\t\textension = extensions.get( 'OES_texture_half_float' );\n\n\t\t\t\tif ( extension !== null ) return extension.HALF_FLOAT_OES;\n\n\t\t\t}\n\n\t\t\tif ( p === AlphaFormat ) return gl.ALPHA;\n\t\t\tif ( p === RGBFormat ) return gl.RGB;\n\t\t\tif ( p === RGBAFormat ) return gl.RGBA;\n\t\t\tif ( p === LuminanceFormat ) return gl.LUMINANCE;\n\t\t\tif ( p === LuminanceAlphaFormat ) return gl.LUMINANCE_ALPHA;\n\t\t\tif ( p === DepthFormat ) return gl.DEPTH_COMPONENT;\n\t\t\tif ( p === DepthStencilFormat ) return gl.DEPTH_STENCIL;\n\n\t\t\tif ( p === AddEquation ) return gl.FUNC_ADD;\n\t\t\tif ( p === SubtractEquation ) return gl.FUNC_SUBTRACT;\n\t\t\tif ( p === ReverseSubtractEquation ) return gl.FUNC_REVERSE_SUBTRACT;\n\n\t\t\tif ( p === ZeroFactor ) return gl.ZERO;\n\t\t\tif ( p === OneFactor ) return gl.ONE;\n\t\t\tif ( p === SrcColorFactor ) return gl.SRC_COLOR;\n\t\t\tif ( p === OneMinusSrcColorFactor ) return gl.ONE_MINUS_SRC_COLOR;\n\t\t\tif ( p === SrcAlphaFactor ) return gl.SRC_ALPHA;\n\t\t\tif ( p === OneMinusSrcAlphaFactor ) return gl.ONE_MINUS_SRC_ALPHA;\n\t\t\tif ( p === DstAlphaFactor ) return gl.DST_ALPHA;\n\t\t\tif ( p === OneMinusDstAlphaFactor ) return gl.ONE_MINUS_DST_ALPHA;\n\n\t\t\tif ( p === DstColorFactor ) return gl.DST_COLOR;\n\t\t\tif ( p === OneMinusDstColorFactor ) return gl.ONE_MINUS_DST_COLOR;\n\t\t\tif ( p === SrcAlphaSaturateFactor ) return gl.SRC_ALPHA_SATURATE;\n\n\t\t\tif ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||\n\t\t\t\tp === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_s3tc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||\n\t\t\t\tp === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;\n\t\t\t\t\tif ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;\n\t\t\t\t\tif ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;\n\t\t\t\t\tif ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === RGB_ETC1_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_etc1' );\n\n\t\t\t\tif ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;\n\n\t\t\t}\n\n\t\t\tif ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||\n\t\t\t\tp === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||\n\t\t\t\tp === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||\n\t\t\t\tp === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||\n\t\t\t\tp === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_astc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\treturn p;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === MinEquation || p === MaxEquation ) {\n\n\t\t\t\tif ( capabilities.isWebGL2 ) {\n\n\t\t\t\t\tif ( p === MinEquation ) return gl.MIN;\n\t\t\t\t\tif ( p === MaxEquation ) return gl.MAX;\n\n\t\t\t\t}\n\n\t\t\t\textension = extensions.get( 'EXT_blend_minmax' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === MinEquation ) return extension.MIN_EXT;\n\t\t\t\t\tif ( p === MaxEquation ) return extension.MAX_EXT;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === UnsignedInt248Type ) {\n\n\t\t\t\tif ( capabilities.isWebGL2 ) return gl.UNSIGNED_INT_24_8;\n\n\t\t\t\textension = extensions.get( 'WEBGL_depth_texture' );\n\n\t\t\t\tif ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;\n\n\t\t\t}\n\n\t\t\treturn 0;\n\n\t\t}\n\n\t\treturn { convert: convert };\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Group() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Group';\n\n\t}\n\n\tGroup.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Group,\n\n\t\tisGroup: true\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author greggman / http://games.greggman.com/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author tschw\n\t */\n\n\tfunction PerspectiveCamera( fov, aspect, near, far ) {\n\n\t\tCamera.call( this );\n\n\t\tthis.type = 'PerspectiveCamera';\n\n\t\tthis.fov = fov !== undefined ? fov : 50;\n\t\tthis.zoom = 1;\n\n\t\tthis.near = near !== undefined ? near : 0.1;\n\t\tthis.far = far !== undefined ? far : 2000;\n\t\tthis.focus = 10;\n\n\t\tthis.aspect = aspect !== undefined ? aspect : 1;\n\t\tthis.view = null;\n\n\t\tthis.filmGauge = 35;\t// width of the film (default in millimeters)\n\t\tthis.filmOffset = 0;\t// horizontal film offset (same unit as gauge)\n\n\t\tthis.updateProjectionMatrix();\n\n\t}\n\n\tPerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {\n\n\t\tconstructor: PerspectiveCamera,\n\n\t\tisPerspectiveCamera: true,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tCamera.prototype.copy.call( this, source, recursive );\n\n\t\t\tthis.fov = source.fov;\n\t\t\tthis.zoom = source.zoom;\n\n\t\t\tthis.near = source.near;\n\t\t\tthis.far = source.far;\n\t\t\tthis.focus = source.focus;\n\n\t\t\tthis.aspect = source.aspect;\n\t\t\tthis.view = source.view === null ? null : Object.assign( {}, source.view );\n\n\t\t\tthis.filmGauge = source.filmGauge;\n\t\t\tthis.filmOffset = source.filmOffset;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t/**\n\t\t * Sets the FOV by focal length in respect to the current .filmGauge.\n\t\t *\n\t\t * The default film gauge is 35, so that the focal length can be specified for\n\t\t * a 35mm (full frame) camera.\n\t\t *\n\t\t * Values for focal length and film gauge must have the same unit.\n\t\t */\n\t\tsetFocalLength: function ( focalLength ) {\n\n\t\t\t// see http://www.bobatkins.com/photography/technical/field_of_view.html\n\t\t\tvar vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;\n\n\t\t\tthis.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\t/**\n\t\t * Calculates the focal length from the current .fov and .filmGauge.\n\t\t */\n\t\tgetFocalLength: function () {\n\n\t\t\tvar vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );\n\n\t\t\treturn 0.5 * this.getFilmHeight() / vExtentSlope;\n\n\t\t},\n\n\t\tgetEffectiveFOV: function () {\n\n\t\t\treturn _Math.RAD2DEG * 2 * Math.atan(\n\t\t\t\tMath.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );\n\n\t\t},\n\n\t\tgetFilmWidth: function () {\n\n\t\t\t// film not completely covered in portrait format (aspect < 1)\n\t\t\treturn this.filmGauge * Math.min( this.aspect, 1 );\n\n\t\t},\n\n\t\tgetFilmHeight: function () {\n\n\t\t\t// film not completely covered in landscape format (aspect > 1)\n\t\t\treturn this.filmGauge / Math.max( this.aspect, 1 );\n\n\t\t},\n\n\t\t/**\n\t\t * Sets an offset in a larger frustum. This is useful for multi-window or\n\t\t * multi-monitor/multi-machine setups.\n\t\t *\n\t\t * For example, if you have 3x2 monitors and each monitor is 1920x1080 and\n\t\t * the monitors are in grid like this\n\t\t *\n\t\t * +---+---+---+\n\t\t * | A | B | C |\n\t\t * +---+---+---+\n\t\t * | D | E | F |\n\t\t * +---+---+---+\n\t\t *\n\t\t * then for each monitor you would call it like this\n\t\t *\n\t\t * var w = 1920;\n\t\t * var h = 1080;\n\t\t * var fullWidth = w * 3;\n\t\t * var fullHeight = h * 2;\n\t\t *\n\t\t * --A--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );\n\t\t * --B--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );\n\t\t * --C--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );\n\t\t * --D--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );\n\t\t * --E--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );\n\t\t * --F--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );\n\t\t *\n\t\t * Note there is no reason monitors have to be the same size or in a grid.\n\t\t */\n\t\tsetViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {\n\n\t\t\tthis.aspect = fullWidth / fullHeight;\n\n\t\t\tif ( this.view === null ) {\n\n\t\t\t\tthis.view = {\n\t\t\t\t\tenabled: true,\n\t\t\t\t\tfullWidth: 1,\n\t\t\t\t\tfullHeight: 1,\n\t\t\t\t\toffsetX: 0,\n\t\t\t\t\toffsetY: 0,\n\t\t\t\t\twidth: 1,\n\t\t\t\t\theight: 1\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tthis.view.enabled = true;\n\t\t\tthis.view.fullWidth = fullWidth;\n\t\t\tthis.view.fullHeight = fullHeight;\n\t\t\tthis.view.offsetX = x;\n\t\t\tthis.view.offsetY = y;\n\t\t\tthis.view.width = width;\n\t\t\tthis.view.height = height;\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tclearViewOffset: function () {\n\n\t\t\tif ( this.view !== null ) {\n\n\t\t\t\tthis.view.enabled = false;\n\n\t\t\t}\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tupdateProjectionMatrix: function () {\n\n\t\t\tvar near = this.near,\n\t\t\t\ttop = near * Math.tan(\n\t\t\t\t\t_Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,\n\t\t\t\theight = 2 * top,\n\t\t\t\twidth = this.aspect * height,\n\t\t\t\tleft = - 0.5 * width,\n\t\t\t\tview = this.view;\n\n\t\t\tif ( this.view !== null && this.view.enabled ) {\n\n\t\t\t\tvar fullWidth = view.fullWidth,\n\t\t\t\t\tfullHeight = view.fullHeight;\n\n\t\t\t\tleft += view.offsetX * width / fullWidth;\n\t\t\t\ttop -= view.offsetY * height / fullHeight;\n\t\t\t\twidth *= view.width / fullWidth;\n\t\t\t\theight *= view.height / fullHeight;\n\n\t\t\t}\n\n\t\t\tvar skew = this.filmOffset;\n\t\t\tif ( skew !== 0 ) left += near * skew / this.getFilmWidth();\n\n\t\t\tthis.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.fov = this.fov;\n\t\t\tdata.object.zoom = this.zoom;\n\n\t\t\tdata.object.near = this.near;\n\t\t\tdata.object.far = this.far;\n\t\t\tdata.object.focus = this.focus;\n\n\t\t\tdata.object.aspect = this.aspect;\n\n\t\t\tif ( this.view !== null ) data.object.view = Object.assign( {}, this.view );\n\n\t\t\tdata.object.filmGauge = this.filmGauge;\n\t\t\tdata.object.filmOffset = this.filmOffset;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction ArrayCamera( array ) {\n\n\t\tPerspectiveCamera.call( this );\n\n\t\tthis.cameras = array || [];\n\n\t}\n\n\tArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {\n\n\t\tconstructor: ArrayCamera,\n\n\t\tisArrayCamera: true\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebVRManager( renderer ) {\n\n\t\tvar scope = this;\n\n\t\tvar device = null;\n\t\tvar frameData = null;\n\n\t\tvar poseTarget = null;\n\n\t\tvar controllers = [];\n\t\tvar standingMatrix = new Matrix4();\n\t\tvar standingMatrixInverse = new Matrix4();\n\n\t\tif ( typeof window !== 'undefined' && 'VRFrameData' in window ) {\n\n\t\t\tframeData = new window.VRFrameData();\n\t\t\twindow.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );\n\n\t\t}\n\n\t\tvar matrixWorldInverse = new Matrix4();\n\t\tvar tempQuaternion = new Quaternion();\n\t\tvar tempPosition = new Vector3();\n\n\t\tvar cameraL = new PerspectiveCamera();\n\t\tcameraL.bounds = new Vector4( 0.0, 0.0, 0.5, 1.0 );\n\t\tcameraL.layers.enable( 1 );\n\n\t\tvar cameraR = new PerspectiveCamera();\n\t\tcameraR.bounds = new Vector4( 0.5, 0.0, 0.5, 1.0 );\n\t\tcameraR.layers.enable( 2 );\n\n\t\tvar cameraVR = new ArrayCamera( [ cameraL, cameraR ] );\n\t\tcameraVR.layers.enable( 1 );\n\t\tcameraVR.layers.enable( 2 );\n\n\t\t//\n\n\t\tfunction isPresenting() {\n\n\t\t\treturn device !== null && device.isPresenting === true;\n\n\t\t}\n\n\t\tvar currentSize, currentPixelRatio;\n\n\t\tfunction onVRDisplayPresentChange() {\n\n\t\t\tif ( isPresenting() ) {\n\n\t\t\t\tvar eyeParameters = device.getEyeParameters( 'left' );\n\t\t\t\tvar renderWidth = eyeParameters.renderWidth;\n\t\t\t\tvar renderHeight = eyeParameters.renderHeight;\n\n\t\t\t\tcurrentPixelRatio = renderer.getPixelRatio();\n\t\t\t\tcurrentSize = renderer.getSize();\n\n\t\t\t\trenderer.setDrawingBufferSize( renderWidth * 2, renderHeight, 1 );\n\n\t\t\t\tanimation.start();\n\n\t\t\t} else if ( scope.enabled ) {\n\n\t\t\t\trenderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );\n\n\t\t\t\tanimation.stop();\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tvar triggers = [];\n\n\t\tfunction findGamepad( id ) {\n\n\t\t\tvar gamepads = navigator.getGamepads && navigator.getGamepads();\n\n\t\t\tfor ( var i = 0, j = 0, l = gamepads.length; i < l; i ++ ) {\n\n\t\t\t\tvar gamepad = gamepads[ i ];\n\n\t\t\t\tif ( gamepad && ( gamepad.id === 'Daydream Controller' ||\n\t\t\t\t\tgamepad.id === 'Gear VR Controller' || gamepad.id === 'Oculus Go Controller' ||\n\t\t\t\t\tgamepad.id === 'OpenVR Gamepad' || gamepad.id.startsWith( 'Oculus Touch' ) ||\n\t\t\t\t\tgamepad.id.startsWith( 'Spatial Controller' ) ) ) {\n\n\t\t\t\t\tif ( j === id ) return gamepad;\n\n\t\t\t\t\tj ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction updateControllers() {\n\n\t\t\tfor ( var i = 0; i < controllers.length; i ++ ) {\n\n\t\t\t\tvar controller = controllers[ i ];\n\n\t\t\t\tvar gamepad = findGamepad( i );\n\n\t\t\t\tif ( gamepad !== undefined && gamepad.pose !== undefined ) {\n\n\t\t\t\t\tif ( gamepad.pose === null ) return;\n\n\t\t\t\t\t// Pose\n\n\t\t\t\t\tvar pose = gamepad.pose;\n\n\t\t\t\t\tif ( pose.hasPosition === false ) controller.position.set( 0.2, - 0.6, - 0.05 );\n\n\t\t\t\t\tif ( pose.position !== null ) controller.position.fromArray( pose.position );\n\t\t\t\t\tif ( pose.orientation !== null ) controller.quaternion.fromArray( pose.orientation );\n\t\t\t\t\tcontroller.matrix.compose( controller.position, controller.quaternion, controller.scale );\n\t\t\t\t\tcontroller.matrix.premultiply( standingMatrix );\n\t\t\t\t\tcontroller.matrix.decompose( controller.position, controller.quaternion, controller.scale );\n\t\t\t\t\tcontroller.matrixWorldNeedsUpdate = true;\n\t\t\t\t\tcontroller.visible = true;\n\n\t\t\t\t\t// Trigger\n\n\t\t\t\t\tvar buttonId = gamepad.id === 'Daydream Controller' ? 0 : 1;\n\n\t\t\t\t\tif ( triggers[ i ] !== gamepad.buttons[ buttonId ].pressed ) {\n\n\t\t\t\t\t\ttriggers[ i ] = gamepad.buttons[ buttonId ].pressed;\n\n\t\t\t\t\t\tif ( triggers[ i ] === true ) {\n\n\t\t\t\t\t\t\tcontroller.dispatchEvent( { type: 'selectstart' } );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tcontroller.dispatchEvent( { type: 'selectend' } );\n\t\t\t\t\t\t\tcontroller.dispatchEvent( { type: 'select' } );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcontroller.visible = false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tthis.enabled = false;\n\t\tthis.userHeight = 1.6;\n\n\t\tthis.getController = function ( id ) {\n\n\t\t\tvar controller = controllers[ id ];\n\n\t\t\tif ( controller === undefined ) {\n\n\t\t\t\tcontroller = new Group();\n\t\t\t\tcontroller.matrixAutoUpdate = false;\n\t\t\t\tcontroller.visible = false;\n\n\t\t\t\tcontrollers[ id ] = controller;\n\n\t\t\t}\n\n\t\t\treturn controller;\n\n\t\t};\n\n\t\tthis.getDevice = function () {\n\n\t\t\treturn device;\n\n\t\t};\n\n\t\tthis.setDevice = function ( value ) {\n\n\t\t\tif ( value !== undefined ) device = value;\n\n\t\t\tanimation.setContext( value );\n\n\t\t};\n\n\t\tthis.setPoseTarget = function ( object ) {\n\n\t\t\tif ( object !== undefined ) poseTarget = object;\n\n\t\t};\n\n\t\tthis.getCamera = function ( camera ) {\n\n\t\t\tif ( device === null ) {\n\n\t\t\t\tcamera.position.set( 0, scope.userHeight, 0 );\n\t\t\t\treturn camera;\n\n\t\t\t}\n\n\t\t\tdevice.depthNear = camera.near;\n\t\t\tdevice.depthFar = camera.far;\n\n\t\t\tdevice.getFrameData( frameData );\n\n\t\t\t//\n\n\t\t\tvar stageParameters = device.stageParameters;\n\n\t\t\tif ( stageParameters ) {\n\n\t\t\t\tstandingMatrix.fromArray( stageParameters.sittingToStandingTransform );\n\n\t\t\t} else {\n\n\t\t\t\tstandingMatrix.makeTranslation( 0, scope.userHeight, 0 );\n\n\t\t\t}\n\n\n\t\t\tvar pose = frameData.pose;\n\t\t\tvar poseObject = poseTarget !== null ? poseTarget : camera;\n\n\t\t\t// We want to manipulate poseObject by its position and quaternion components since users may rely on them.\n\t\t\tposeObject.matrix.copy( standingMatrix );\n\t\t\tposeObject.matrix.decompose( poseObject.position, poseObject.quaternion, poseObject.scale );\n\n\t\t\tif ( pose.orientation !== null ) {\n\n\t\t\t\ttempQuaternion.fromArray( pose.orientation );\n\t\t\t\tposeObject.quaternion.multiply( tempQuaternion );\n\n\t\t\t}\n\n\t\t\tif ( pose.position !== null ) {\n\n\t\t\t\ttempQuaternion.setFromRotationMatrix( standingMatrix );\n\t\t\t\ttempPosition.fromArray( pose.position );\n\t\t\t\ttempPosition.applyQuaternion( tempQuaternion );\n\t\t\t\tposeObject.position.add( tempPosition );\n\n\t\t\t}\n\n\t\t\tposeObject.updateMatrixWorld();\n\n\t\t\tif ( device.isPresenting === false ) return camera;\n\n\t\t\t//\n\n\t\t\tcameraL.near = camera.near;\n\t\t\tcameraR.near = camera.near;\n\n\t\t\tcameraL.far = camera.far;\n\t\t\tcameraR.far = camera.far;\n\n\t\t\tcameraVR.matrixWorld.copy( camera.matrixWorld );\n\t\t\tcameraVR.matrixWorldInverse.copy( camera.matrixWorldInverse );\n\n\t\t\tcameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );\n\t\t\tcameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );\n\n\t\t\t// TODO (mrdoob) Double check this code\n\n\t\t\tstandingMatrixInverse.getInverse( standingMatrix );\n\n\t\t\tcameraL.matrixWorldInverse.multiply( standingMatrixInverse );\n\t\t\tcameraR.matrixWorldInverse.multiply( standingMatrixInverse );\n\n\t\t\tvar parent = poseObject.parent;\n\n\t\t\tif ( parent !== null ) {\n\n\t\t\t\tmatrixWorldInverse.getInverse( parent.matrixWorld );\n\n\t\t\t\tcameraL.matrixWorldInverse.multiply( matrixWorldInverse );\n\t\t\t\tcameraR.matrixWorldInverse.multiply( matrixWorldInverse );\n\n\t\t\t}\n\n\t\t\t// envMap and Mirror needs camera.matrixWorld\n\n\t\t\tcameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );\n\t\t\tcameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );\n\n\t\t\tcameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );\n\t\t\tcameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );\n\n\t\t\t// HACK (mrdoob)\n\t\t\t// https://github.com/w3c/webvr/issues/203\n\n\t\t\tcameraVR.projectionMatrix.copy( cameraL.projectionMatrix );\n\n\t\t\t//\n\n\t\t\tvar layers = device.getLayers();\n\n\t\t\tif ( layers.length ) {\n\n\t\t\t\tvar layer = layers[ 0 ];\n\n\t\t\t\tif ( layer.leftBounds !== null && layer.leftBounds.length === 4 ) {\n\n\t\t\t\t\tcameraL.bounds.fromArray( layer.leftBounds );\n\n\t\t\t\t}\n\n\t\t\t\tif ( layer.rightBounds !== null && layer.rightBounds.length === 4 ) {\n\n\t\t\t\t\tcameraR.bounds.fromArray( layer.rightBounds );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tupdateControllers();\n\n\t\t\treturn cameraVR;\n\n\t\t};\n\n\t\tthis.getStandingMatrix = function () {\n\n\t\t\treturn standingMatrix;\n\n\t\t};\n\n\t\tthis.isPresenting = isPresenting;\n\n\t\t// Animation Loop\n\n\t\tvar animation = new WebGLAnimation();\n\n\t\tthis.setAnimationLoop = function ( callback ) {\n\n\t\t\tanimation.setAnimationLoop( callback );\n\n\t\t};\n\n\t\tthis.submitFrame = function () {\n\n\t\t\tif ( isPresenting() ) device.submitFrame();\n\n\t\t};\n\n\t\tthis.dispose = function () {\n\n\t\t\tif ( typeof window !== 'undefined' ) {\n\n\t\t\t\twindow.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange );\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebXRManager( renderer ) {\n\n\t\tvar gl = renderer.context;\n\n\t\tvar device = null;\n\t\tvar session = null;\n\n\t\tvar frameOfRef = null;\n\n\t\tvar pose = null;\n\n\t\tvar controllers = [];\n\t\tvar inputSources = [];\n\n\t\tfunction isPresenting() {\n\n\t\t\treturn session !== null && frameOfRef !== null;\n\n\n\t\t}\n\n\t\t//\n\n\t\tvar cameraL = new PerspectiveCamera();\n\t\tcameraL.layers.enable( 1 );\n\t\tcameraL.viewport = new Vector4();\n\n\t\tvar cameraR = new PerspectiveCamera();\n\t\tcameraR.layers.enable( 2 );\n\t\tcameraR.viewport = new Vector4();\n\n\t\tvar cameraVR = new ArrayCamera( [ cameraL, cameraR ] );\n\t\tcameraVR.layers.enable( 1 );\n\t\tcameraVR.layers.enable( 2 );\n\n\t\t//\n\n\t\tthis.enabled = false;\n\n\t\tthis.getController = function ( id ) {\n\n\t\t\tvar controller = controllers[ id ];\n\n\t\t\tif ( controller === undefined ) {\n\n\t\t\t\tcontroller = new Group();\n\t\t\t\tcontroller.matrixAutoUpdate = false;\n\t\t\t\tcontroller.visible = false;\n\n\t\t\t\tcontrollers[ id ] = controller;\n\n\t\t\t}\n\n\t\t\treturn controller;\n\n\t\t};\n\n\t\tthis.getDevice = function () {\n\n\t\t\treturn device;\n\n\t\t};\n\n\t\tthis.setDevice = function ( value ) {\n\n\t\t\tif ( value !== undefined ) device = value;\n\t\t\tif ( value instanceof XRDevice ) gl.setCompatibleXRDevice( value );\n\n\t\t};\n\n\t\t//\n\n\t\tfunction onSessionEvent( event ) {\n\n\t\t\tvar controller = controllers[ inputSources.indexOf( event.inputSource ) ];\n\t\t\tif ( controller ) controller.dispatchEvent( { type: event.type } );\n\n\t\t}\n\n\t\tfunction onSessionEnd() {\n\n\t\t\trenderer.setFramebuffer( null );\n\t\t\tanimation.stop();\n\n\t\t}\n\n\t\tthis.setSession = function ( value, options ) {\n\n\t\t\tsession = value;\n\n\t\t\tif ( session !== null ) {\n\n\t\t\t\tsession.addEventListener( 'select', onSessionEvent );\n\t\t\t\tsession.addEventListener( 'selectstart', onSessionEvent );\n\t\t\t\tsession.addEventListener( 'selectend', onSessionEvent );\n\t\t\t\tsession.addEventListener( 'end', onSessionEnd );\n\n\t\t\t\tsession.baseLayer = new XRWebGLLayer( session, gl );\n\t\t\t\tsession.requestFrameOfReference( options.frameOfReferenceType ).then( function ( value ) {\n\n\t\t\t\t\tframeOfRef = value;\n\n\t\t\t\t\trenderer.setFramebuffer( session.baseLayer.framebuffer );\n\n\t\t\t\t\tanimation.setContext( session );\n\t\t\t\t\tanimation.start();\n\n\t\t\t\t} );\n\n\t\t\t\t//\n\n\t\t\t\tinputSources = session.getInputSources();\n\n\t\t\t\tsession.addEventListener( 'inputsourceschange', function () {\n\n\t\t\t\t\tinputSources = session.getInputSources();\n\t\t\t\t\tconsole.log( inputSources );\n\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t};\n\n\t\tfunction updateCamera( camera, parent ) {\n\n\t\t\tif ( parent === null ) {\n\n\t\t\t\tcamera.matrixWorld.copy( camera.matrix );\n\n\t\t\t} else {\n\n\t\t\t\tcamera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix );\n\n\t\t\t}\n\n\t\t\tcamera.matrixWorldInverse.getInverse( camera.matrixWorld );\n\n\t\t}\n\n\t\tthis.getCamera = function ( camera ) {\n\n\t\t\tif ( isPresenting() ) {\n\n\t\t\t\tvar parent = camera.parent;\n\t\t\t\tvar cameras = cameraVR.cameras;\n\n\t\t\t\t// apply camera.parent to cameraVR\n\n\t\t\t\tupdateCamera( cameraVR, parent );\n\n\t\t\t\tfor ( var i = 0; i < cameras.length; i ++ ) {\n\n\t\t\t\t\tupdateCamera( cameras[ i ], parent );\n\n\t\t\t\t}\n\n\t\t\t\t// update camera and its children\n\n\t\t\t\tcamera.matrixWorld.copy( cameraVR.matrixWorld );\n\n\t\t\t\tvar children = camera.children;\n\n\t\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\t\tchildren[ i ].updateMatrixWorld( true );\n\n\t\t\t\t}\n\n\t\t\t\treturn cameraVR;\n\n\t\t\t}\n\n\t\t\treturn camera;\n\n\t\t};\n\n\t\tthis.isPresenting = isPresenting;\n\n\t\t// Animation Loop\n\n\t\tvar onAnimationFrameCallback = null;\n\n\t\tfunction onAnimationFrame( time, frame ) {\n\n\t\t\tpose = frame.getDevicePose( frameOfRef );\n\n\t\t\tif ( pose !== null ) {\n\n\t\t\t\tvar layer = session.baseLayer;\n\t\t\t\tvar views = frame.views;\n\n\t\t\t\tfor ( var i = 0; i < views.length; i ++ ) {\n\n\t\t\t\t\tvar view = views[ i ];\n\t\t\t\t\tvar viewport = layer.getViewport( view );\n\t\t\t\t\tvar viewMatrix = pose.getViewMatrix( view );\n\n\t\t\t\t\tvar camera = cameraVR.cameras[ i ];\n\t\t\t\t\tcamera.matrix.fromArray( viewMatrix ).getInverse( camera.matrix );\n\t\t\t\t\tcamera.projectionMatrix.fromArray( view.projectionMatrix );\n\t\t\t\t\tcamera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height );\n\n\t\t\t\t\tif ( i === 0 ) {\n\n\t\t\t\t\t\tcameraVR.matrix.copy( camera.matrix );\n\n\t\t\t\t\t\t// HACK (mrdoob)\n\t\t\t\t\t\t// https://github.com/w3c/webvr/issues/203\n\n\t\t\t\t\t\tcameraVR.projectionMatrix.copy( camera.projectionMatrix );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tfor ( var i = 0; i < controllers.length; i ++ ) {\n\n\t\t\t\tvar controller = controllers[ i ];\n\n\t\t\t\tvar inputSource = inputSources[ i ];\n\n\t\t\t\tif ( inputSource ) {\n\n\t\t\t\t\tvar inputPose = frame.getInputPose( inputSource, frameOfRef );\n\n\t\t\t\t\tif ( inputPose !== null ) {\n\n\t\t\t\t\t\tcontroller.matrix.elements = inputPose.pointerMatrix;\n\t\t\t\t\t\tcontroller.matrix.decompose( controller.position, controller.rotation, controller.scale );\n\t\t\t\t\t\tcontroller.visible = true;\n\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tcontroller.visible = false;\n\n\t\t\t}\n\n\t\t\tif ( onAnimationFrameCallback ) onAnimationFrameCallback( time );\n\n\t\t}\n\n\t\tvar animation = new WebGLAnimation();\n\t\tanimation.setAnimationLoop( onAnimationFrame );\n\n\t\tthis.setAnimationLoop = function ( callback ) {\n\n\t\t\tonAnimationFrameCallback = callback;\n\n\t\t};\n\n\t\tthis.dispose = function () {};\n\n\t\t// DEPRECATED\n\n\t\tthis.getStandingMatrix = function () {\n\n\t\t\tconsole.warn( 'THREE.WebXRManager: getStandingMatrix() is no longer needed.' );\n\t\t\treturn new THREE.Matrix4();\n\n\t\t};\n\n\t\tthis.submitFrame = function () {};\n\n\t}\n\n\t/**\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t * @author tschw\n\t */\n\n\tfunction WebGLRenderer( parameters ) {\n\n\t\tconsole.log( 'THREE.WebGLRenderer', REVISION );\n\n\t\tparameters = parameters || {};\n\n\t\tvar _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),\n\t\t\t_context = parameters.context !== undefined ? parameters.context : null,\n\n\t\t\t_alpha = parameters.alpha !== undefined ? parameters.alpha : false,\n\t\t\t_depth = parameters.depth !== undefined ? parameters.depth : true,\n\t\t\t_stencil = parameters.stencil !== undefined ? parameters.stencil : true,\n\t\t\t_antialias = parameters.antialias !== undefined ? parameters.antialias : false,\n\t\t\t_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,\n\t\t\t_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,\n\t\t\t_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default';\n\n\t\tvar currentRenderList = null;\n\t\tvar currentRenderState = null;\n\n\t\t// public properties\n\n\t\tthis.domElement = _canvas;\n\t\tthis.context = null;\n\n\t\t// clearing\n\n\t\tthis.autoClear = true;\n\t\tthis.autoClearColor = true;\n\t\tthis.autoClearDepth = true;\n\t\tthis.autoClearStencil = true;\n\n\t\t// scene graph\n\n\t\tthis.sortObjects = true;\n\n\t\t// user-defined clipping\n\n\t\tthis.clippingPlanes = [];\n\t\tthis.localClippingEnabled = false;\n\n\t\t// physically based shading\n\n\t\tthis.gammaFactor = 2.0;\t// for backwards compatibility\n\t\tthis.gammaInput = false;\n\t\tthis.gammaOutput = false;\n\n\t\t// physical lights\n\n\t\tthis.physicallyCorrectLights = false;\n\n\t\t// tone mapping\n\n\t\tthis.toneMapping = LinearToneMapping;\n\t\tthis.toneMappingExposure = 1.0;\n\t\tthis.toneMappingWhitePoint = 1.0;\n\n\t\t// morphs\n\n\t\tthis.maxMorphTargets = 8;\n\t\tthis.maxMorphNormals = 4;\n\n\t\t// internal properties\n\n\t\tvar _this = this,\n\n\t\t\t_isContextLost = false,\n\n\t\t\t// internal state cache\n\n\t\t\t_framebuffer = null,\n\n\t\t\t_currentRenderTarget = null,\n\t\t\t_currentFramebuffer = null,\n\t\t\t_currentMaterialId = - 1,\n\n\t\t\t// geometry and program caching\n\n\t\t\t_currentGeometryProgram = {\n\t\t\t\tgeometry: null,\n\t\t\t\tprogram: null,\n\t\t\t\twireframe: false\n\t\t\t},\n\n\t\t\t_currentCamera = null,\n\t\t\t_currentArrayCamera = null,\n\n\t\t\t_currentViewport = new Vector4(),\n\t\t\t_currentScissor = new Vector4(),\n\t\t\t_currentScissorTest = null,\n\n\t\t\t//\n\n\t\t\t_usedTextureUnits = 0,\n\n\t\t\t//\n\n\t\t\t_width = _canvas.width,\n\t\t\t_height = _canvas.height,\n\n\t\t\t_pixelRatio = 1,\n\n\t\t\t_viewport = new Vector4( 0, 0, _width, _height ),\n\t\t\t_scissor = new Vector4( 0, 0, _width, _height ),\n\t\t\t_scissorTest = false,\n\n\t\t\t// frustum\n\n\t\t\t_frustum = new Frustum(),\n\n\t\t\t// clipping\n\n\t\t\t_clipping = new WebGLClipping(),\n\t\t\t_clippingEnabled = false,\n\t\t\t_localClippingEnabled = false,\n\n\t\t\t// camera matrices cache\n\n\t\t\t_projScreenMatrix = new Matrix4(),\n\n\t\t\t_vector3 = new Vector3();\n\n\t\tfunction getTargetPixelRatio() {\n\n\t\t\treturn _currentRenderTarget === null ? _pixelRatio : 1;\n\n\t\t}\n\n\t\t// initialize\n\n\t\tvar _gl;\n\n\t\ttry {\n\n\t\t\tvar contextAttributes = {\n\t\t\t\talpha: _alpha,\n\t\t\t\tdepth: _depth,\n\t\t\t\tstencil: _stencil,\n\t\t\t\tantialias: _antialias,\n\t\t\t\tpremultipliedAlpha: _premultipliedAlpha,\n\t\t\t\tpreserveDrawingBuffer: _preserveDrawingBuffer,\n\t\t\t\tpowerPreference: _powerPreference\n\t\t\t};\n\n\t\t\t// event listeners must be registered before WebGL context is created, see #12753\n\n\t\t\t_canvas.addEventListener( 'webglcontextlost', onContextLost, false );\n\t\t\t_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );\n\n\t\t\t_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );\n\n\t\t\tif ( _gl === null ) {\n\n\t\t\t\tif ( _canvas.getContext( 'webgl' ) !== null ) {\n\n\t\t\t\t\tthrow new Error( 'Error creating WebGL context with your selected attributes.' );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthrow new Error( 'Error creating WebGL context.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Some experimental-webgl implementations do not have getShaderPrecisionFormat\n\n\t\t\tif ( _gl.getShaderPrecisionFormat === undefined ) {\n\n\t\t\t\t_gl.getShaderPrecisionFormat = function () {\n\n\t\t\t\t\treturn { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t} catch ( error ) {\n\n\t\t\tconsole.error( 'THREE.WebGLRenderer: ' + error.message );\n\n\t\t}\n\n\t\tvar extensions, capabilities, state, info;\n\t\tvar properties, textures, attributes, geometries, objects;\n\t\tvar programCache, renderLists, renderStates;\n\n\t\tvar background, morphtargets, bufferRenderer, indexedBufferRenderer;\n\n\t\tvar utils;\n\n\t\tfunction initGLContext() {\n\n\t\t\textensions = new WebGLExtensions( _gl );\n\n\t\t\tcapabilities = new WebGLCapabilities( _gl, extensions, parameters );\n\n\t\t\tif ( ! capabilities.isWebGL2 ) {\n\n\t\t\t\textensions.get( 'WEBGL_depth_texture' );\n\t\t\t\textensions.get( 'OES_texture_float' );\n\t\t\t\textensions.get( 'OES_texture_half_float' );\n\t\t\t\textensions.get( 'OES_texture_half_float_linear' );\n\t\t\t\textensions.get( 'OES_standard_derivatives' );\n\t\t\t\textensions.get( 'OES_element_index_uint' );\n\t\t\t\textensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t}\n\n\t\t\textensions.get( 'OES_texture_float_linear' );\n\n\t\t\tutils = new WebGLUtils( _gl, extensions, capabilities );\n\n\t\t\tstate = new WebGLState( _gl, extensions, utils, capabilities );\n\t\t\tstate.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );\n\t\t\tstate.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );\n\n\t\t\tinfo = new WebGLInfo( _gl );\n\t\t\tproperties = new WebGLProperties();\n\t\t\ttextures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );\n\t\t\tattributes = new WebGLAttributes( _gl );\n\t\t\tgeometries = new WebGLGeometries( _gl, attributes, info );\n\t\t\tobjects = new WebGLObjects( geometries, info );\n\t\t\tmorphtargets = new WebGLMorphtargets( _gl );\n\t\t\tprogramCache = new WebGLPrograms( _this, extensions, capabilities );\n\t\t\trenderLists = new WebGLRenderLists();\n\t\t\trenderStates = new WebGLRenderStates();\n\n\t\t\tbackground = new WebGLBackground( _this, state, objects, _premultipliedAlpha );\n\n\t\t\tbufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities );\n\t\t\tindexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities );\n\n\t\t\tinfo.programs = programCache.programs;\n\n\t\t\t_this.context = _gl;\n\t\t\t_this.capabilities = capabilities;\n\t\t\t_this.extensions = extensions;\n\t\t\t_this.properties = properties;\n\t\t\t_this.renderLists = renderLists;\n\t\t\t_this.state = state;\n\t\t\t_this.info = info;\n\n\t\t}\n\n\t\tinitGLContext();\n\n\t\t// vr\n\n\t\tvar vr = ( 'xr' in navigator ) ? new WebXRManager( _this ) : new WebVRManager( _this );\n\n\t\tthis.vr = vr;\n\n\t\t// shadow map\n\n\t\tvar shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize );\n\n\t\tthis.shadowMap = shadowMap;\n\n\t\t// API\n\n\t\tthis.getContext = function () {\n\n\t\t\treturn _gl;\n\n\t\t};\n\n\t\tthis.getContextAttributes = function () {\n\n\t\t\treturn _gl.getContextAttributes();\n\n\t\t};\n\n\t\tthis.forceContextLoss = function () {\n\n\t\t\tvar extension = extensions.get( 'WEBGL_lose_context' );\n\t\t\tif ( extension ) extension.loseContext();\n\n\t\t};\n\n\t\tthis.forceContextRestore = function () {\n\n\t\t\tvar extension = extensions.get( 'WEBGL_lose_context' );\n\t\t\tif ( extension ) extension.restoreContext();\n\n\t\t};\n\n\t\tthis.getPixelRatio = function () {\n\n\t\t\treturn _pixelRatio;\n\n\t\t};\n\n\t\tthis.setPixelRatio = function ( value ) {\n\n\t\t\tif ( value === undefined ) return;\n\n\t\t\t_pixelRatio = value;\n\n\t\t\tthis.setSize( _width, _height, false );\n\n\t\t};\n\n\t\tthis.getSize = function () {\n\n\t\t\treturn {\n\t\t\t\twidth: _width,\n\t\t\t\theight: _height\n\t\t\t};\n\n\t\t};\n\n\t\tthis.setSize = function ( width, height, updateStyle ) {\n\n\t\t\tif ( vr.isPresenting() ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Can\\'t change size while VR device is presenting.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t_width = width;\n\t\t\t_height = height;\n\n\t\t\t_canvas.width = width * _pixelRatio;\n\t\t\t_canvas.height = height * _pixelRatio;\n\n\t\t\tif ( updateStyle !== false ) {\n\n\t\t\t\t_canvas.style.width = width + 'px';\n\t\t\t\t_canvas.style.height = height + 'px';\n\n\t\t\t}\n\n\t\t\tthis.setViewport( 0, 0, width, height );\n\n\t\t};\n\n\t\tthis.getDrawingBufferSize = function () {\n\n\t\t\treturn {\n\t\t\t\twidth: _width * _pixelRatio,\n\t\t\t\theight: _height * _pixelRatio\n\t\t\t};\n\n\t\t};\n\n\t\tthis.setDrawingBufferSize = function ( width, height, pixelRatio ) {\n\n\t\t\t_width = width;\n\t\t\t_height = height;\n\n\t\t\t_pixelRatio = pixelRatio;\n\n\t\t\t_canvas.width = width * pixelRatio;\n\t\t\t_canvas.height = height * pixelRatio;\n\n\t\t\tthis.setViewport( 0, 0, width, height );\n\n\t\t};\n\n\t\tthis.getCurrentViewport = function () {\n\n\t\t\treturn _currentViewport;\n\n\t\t};\n\n\t\tthis.setViewport = function ( x, y, width, height ) {\n\n\t\t\t_viewport.set( x, _height - y - height, width, height );\n\t\t\tstate.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );\n\n\t\t};\n\n\t\tthis.setScissor = function ( x, y, width, height ) {\n\n\t\t\t_scissor.set( x, _height - y - height, width, height );\n\t\t\tstate.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );\n\n\t\t};\n\n\t\tthis.setScissorTest = function ( boolean ) {\n\n\t\t\tstate.setScissorTest( _scissorTest = boolean );\n\n\t\t};\n\n\t\t// Clearing\n\n\t\tthis.getClearColor = function () {\n\n\t\t\treturn background.getClearColor();\n\n\t\t};\n\n\t\tthis.setClearColor = function () {\n\n\t\t\tbackground.setClearColor.apply( background, arguments );\n\n\t\t};\n\n\t\tthis.getClearAlpha = function () {\n\n\t\t\treturn background.getClearAlpha();\n\n\t\t};\n\n\t\tthis.setClearAlpha = function () {\n\n\t\t\tbackground.setClearAlpha.apply( background, arguments );\n\n\t\t};\n\n\t\tthis.clear = function ( color, depth, stencil ) {\n\n\t\t\tvar bits = 0;\n\n\t\t\tif ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;\n\t\t\tif ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;\n\t\t\tif ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;\n\n\t\t\t_gl.clear( bits );\n\n\t\t};\n\n\t\tthis.clearColor = function () {\n\n\t\t\tthis.clear( true, false, false );\n\n\t\t};\n\n\t\tthis.clearDepth = function () {\n\n\t\t\tthis.clear( false, true, false );\n\n\t\t};\n\n\t\tthis.clearStencil = function () {\n\n\t\t\tthis.clear( false, false, true );\n\n\t\t};\n\n\t\tthis.clearTarget = function ( renderTarget, color, depth, stencil ) {\n\n\t\t\tthis.setRenderTarget( renderTarget );\n\t\t\tthis.clear( color, depth, stencil );\n\n\t\t};\n\n\t\t//\n\n\t\tthis.dispose = function () {\n\n\t\t\t_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );\n\t\t\t_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );\n\n\t\t\trenderLists.dispose();\n\t\t\trenderStates.dispose();\n\t\t\tproperties.dispose();\n\t\t\tobjects.dispose();\n\n\t\t\tvr.dispose();\n\n\t\t\tanimation.stop();\n\n\t\t};\n\n\t\t// Events\n\n\t\tfunction onContextLost( event ) {\n\n\t\t\tevent.preventDefault();\n\n\t\t\tconsole.log( 'THREE.WebGLRenderer: Context Lost.' );\n\n\t\t\t_isContextLost = true;\n\n\t\t}\n\n\t\tfunction onContextRestore( /* event */ ) {\n\n\t\t\tconsole.log( 'THREE.WebGLRenderer: Context Restored.' );\n\n\t\t\t_isContextLost = false;\n\n\t\t\tinitGLContext();\n\n\t\t}\n\n\t\tfunction onMaterialDispose( event ) {\n\n\t\t\tvar material = event.target;\n\n\t\t\tmaterial.removeEventListener( 'dispose', onMaterialDispose );\n\n\t\t\tdeallocateMaterial( material );\n\n\t\t}\n\n\t\t// Buffer deallocation\n\n\t\tfunction deallocateMaterial( material ) {\n\n\t\t\treleaseMaterialProgramReference( material );\n\n\t\t\tproperties.remove( material );\n\n\t\t}\n\n\n\t\tfunction releaseMaterialProgramReference( material ) {\n\n\t\t\tvar programInfo = properties.get( material ).program;\n\n\t\t\tmaterial.program = undefined;\n\n\t\t\tif ( programInfo !== undefined ) {\n\n\t\t\t\tprogramCache.releaseProgram( programInfo );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Buffer rendering\n\n\t\tfunction renderObjectImmediate( object, program ) {\n\n\t\t\tobject.render( function ( object ) {\n\n\t\t\t\t_this.renderBufferImmediate( object, program );\n\n\t\t\t} );\n\n\t\t}\n\n\t\tthis.renderBufferImmediate = function ( object, program ) {\n\n\t\t\tstate.initAttributes();\n\n\t\t\tvar buffers = properties.get( object );\n\n\t\t\tif ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();\n\t\t\tif ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();\n\t\t\tif ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();\n\t\t\tif ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();\n\n\t\t\tvar programAttributes = program.getAttributes();\n\n\t\t\tif ( object.hasPositions ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.position );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.position, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasNormals ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.normal );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.normal, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasUvs ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.uv );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.uv, 2, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasColors ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.color );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.color, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t\t_gl.drawArrays( _gl.TRIANGLES, 0, object.count );\n\n\t\t\tobject.count = 0;\n\n\t\t};\n\n\t\tthis.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {\n\n\t\t\tvar frontFaceCW = ( object.isMesh && object.normalMatrix.determinant() < 0 );\n\n\t\t\tstate.setMaterial( material, frontFaceCW );\n\n\t\t\tvar program = setProgram( camera, fog, material, object );\n\n\t\t\tvar updateBuffers = false;\n\n\t\t\tif ( _currentGeometryProgram.geometry !== geometry.id ||\n\t\t\t\t_currentGeometryProgram.program !== program.id ||\n\t\t\t\t_currentGeometryProgram.wireframe !== ( material.wireframe === true ) ) {\n\n\t\t\t\t_currentGeometryProgram.geometry = geometry.id;\n\t\t\t\t_currentGeometryProgram.program = program.id;\n\t\t\t\t_currentGeometryProgram.wireframe = material.wireframe === true;\n\t\t\t\tupdateBuffers = true;\n\n\t\t\t}\n\n\t\t\tif ( object.morphTargetInfluences ) {\n\n\t\t\t\tmorphtargets.update( object, geometry, material, program );\n\n\t\t\t\tupdateBuffers = true;\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar index = geometry.index;\n\t\t\tvar position = geometry.attributes.position;\n\t\t\tvar rangeFactor = 1;\n\n\t\t\tif ( material.wireframe === true ) {\n\n\t\t\t\tindex = geometries.getWireframeAttribute( geometry );\n\t\t\t\trangeFactor = 2;\n\n\t\t\t}\n\n\t\t\tvar attribute;\n\t\t\tvar renderer = bufferRenderer;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tattribute = attributes.get( index );\n\n\t\t\t\trenderer = indexedBufferRenderer;\n\t\t\t\trenderer.setIndex( attribute );\n\n\t\t\t}\n\n\t\t\tif ( updateBuffers ) {\n\n\t\t\t\tsetupVertexAttributes( material, program, geometry );\n\n\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, attribute.buffer );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar dataCount = Infinity;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tdataCount = index.count;\n\n\t\t\t} else if ( position !== undefined ) {\n\n\t\t\t\tdataCount = position.count;\n\n\t\t\t}\n\n\t\t\tvar rangeStart = geometry.drawRange.start * rangeFactor;\n\t\t\tvar rangeCount = geometry.drawRange.count * rangeFactor;\n\n\t\t\tvar groupStart = group !== null ? group.start * rangeFactor : 0;\n\t\t\tvar groupCount = group !== null ? group.count * rangeFactor : Infinity;\n\n\t\t\tvar drawStart = Math.max( rangeStart, groupStart );\n\t\t\tvar drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;\n\n\t\t\tvar drawCount = Math.max( 0, drawEnd - drawStart + 1 );\n\n\t\t\tif ( drawCount === 0 ) return;\n\n\t\t\t//\n\n\t\t\tif ( object.isMesh ) {\n\n\t\t\t\tif ( material.wireframe === true ) {\n\n\t\t\t\t\tstate.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );\n\t\t\t\t\trenderer.setMode( _gl.LINES );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tswitch ( object.drawMode ) {\n\n\t\t\t\t\t\tcase TrianglesDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLES );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TriangleStripDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLE_STRIP );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TriangleFanDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLE_FAN );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\n\t\t\t} else if ( object.isLine ) {\n\n\t\t\t\tvar lineWidth = material.linewidth;\n\n\t\t\t\tif ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material\n\n\t\t\t\tstate.setLineWidth( lineWidth * getTargetPixelRatio() );\n\n\t\t\t\tif ( object.isLineSegments ) {\n\n\t\t\t\t\trenderer.setMode( _gl.LINES );\n\n\t\t\t\t} else if ( object.isLineLoop ) {\n\n\t\t\t\t\trenderer.setMode( _gl.LINE_LOOP );\n\n\t\t\t\t} else {\n\n\t\t\t\t\trenderer.setMode( _gl.LINE_STRIP );\n\n\t\t\t\t}\n\n\t\t\t} else if ( object.isPoints ) {\n\n\t\t\t\trenderer.setMode( _gl.POINTS );\n\n\t\t\t} else if ( object.isSprite ) {\n\n\t\t\t\trenderer.setMode( _gl.TRIANGLES );\n\n\t\t\t}\n\n\t\t\tif ( geometry && geometry.isInstancedBufferGeometry ) {\n\n\t\t\t\tif ( geometry.maxInstancedCount > 0 ) {\n\n\t\t\t\t\trenderer.renderInstances( geometry, drawStart, drawCount );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\trenderer.render( drawStart, drawCount );\n\n\t\t\t}\n\n\t\t};\n\n\t\tfunction setupVertexAttributes( material, program, geometry ) {\n\n\t\t\tif ( geometry && geometry.isInstancedBufferGeometry & ! capabilities.isWebGL2 ) {\n\n\t\t\t\tif ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {\n\n\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.initAttributes();\n\n\t\t\tvar geometryAttributes = geometry.attributes;\n\n\t\t\tvar programAttributes = program.getAttributes();\n\n\t\t\tvar materialDefaultAttributeValues = material.defaultAttributeValues;\n\n\t\t\tfor ( var name in programAttributes ) {\n\n\t\t\t\tvar programAttribute = programAttributes[ name ];\n\n\t\t\t\tif ( programAttribute >= 0 ) {\n\n\t\t\t\t\tvar geometryAttribute = geometryAttributes[ name ];\n\n\t\t\t\t\tif ( geometryAttribute !== undefined ) {\n\n\t\t\t\t\t\tvar normalized = geometryAttribute.normalized;\n\t\t\t\t\t\tvar size = geometryAttribute.itemSize;\n\n\t\t\t\t\t\tvar attribute = attributes.get( geometryAttribute );\n\n\t\t\t\t\t\t// TODO Attribute may not be available on context restore\n\n\t\t\t\t\t\tif ( attribute === undefined ) continue;\n\n\t\t\t\t\t\tvar buffer = attribute.buffer;\n\t\t\t\t\t\tvar type = attribute.type;\n\t\t\t\t\t\tvar bytesPerElement = attribute.bytesPerElement;\n\n\t\t\t\t\t\tif ( geometryAttribute.isInterleavedBufferAttribute ) {\n\n\t\t\t\t\t\t\tvar data = geometryAttribute.data;\n\t\t\t\t\t\t\tvar stride = data.stride;\n\t\t\t\t\t\t\tvar offset = geometryAttribute.offset;\n\n\t\t\t\t\t\t\tif ( data && data.isInstancedInterleavedBuffer ) {\n\n\t\t\t\t\t\t\t\tstate.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );\n\n\t\t\t\t\t\t\t\tif ( geometry.maxInstancedCount === undefined ) {\n\n\t\t\t\t\t\t\t\t\tgeometry.maxInstancedCount = data.meshPerAttribute * data.count;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.enableAttribute( programAttribute );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );\n\t\t\t\t\t\t\t_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tif ( geometryAttribute.isInstancedBufferAttribute ) {\n\n\t\t\t\t\t\t\t\tstate.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );\n\n\t\t\t\t\t\t\t\tif ( geometry.maxInstancedCount === undefined ) {\n\n\t\t\t\t\t\t\t\t\tgeometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.enableAttribute( programAttribute );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );\n\t\t\t\t\t\t\t_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, 0 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( materialDefaultAttributeValues !== undefined ) {\n\n\t\t\t\t\t\tvar value = materialDefaultAttributeValues[ name ];\n\n\t\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\t\tswitch ( value.length ) {\n\n\t\t\t\t\t\t\t\tcase 2:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib2fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase 3:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib3fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase 4:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib4fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib1fv( programAttribute, value );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t}\n\n\t\t// Compile\n\n\t\tthis.compile = function ( scene, camera ) {\n\n\t\t\tcurrentRenderState = renderStates.get( scene, camera );\n\t\t\tcurrentRenderState.init();\n\n\t\t\tscene.traverse( function ( object ) {\n\n\t\t\t\tif ( object.isLight ) {\n\n\t\t\t\t\tcurrentRenderState.pushLight( object );\n\n\t\t\t\t\tif ( object.castShadow ) {\n\n\t\t\t\t\t\tcurrentRenderState.pushShadow( object );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} );\n\n\t\t\tcurrentRenderState.setupLights( camera );\n\n\t\t\tscene.traverse( function ( object ) {\n\n\t\t\t\tif ( object.material ) {\n\n\t\t\t\t\tif ( Array.isArray( object.material ) ) {\n\n\t\t\t\t\t\tfor ( var i = 0; i < object.material.length; i ++ ) {\n\n\t\t\t\t\t\t\tinitMaterial( object.material[ i ], scene.fog, object );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tinitMaterial( object.material, scene.fog, object );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} );\n\n\t\t};\n\n\t\t// Animation Loop\n\n\t\tvar onAnimationFrameCallback = null;\n\n\t\tfunction onAnimationFrame( time ) {\n\n\t\t\tif ( vr.isPresenting() ) return;\n\t\t\tif ( onAnimationFrameCallback ) onAnimationFrameCallback( time );\n\n\t\t}\n\n\t\tvar animation = new WebGLAnimation();\n\t\tanimation.setAnimationLoop( onAnimationFrame );\n\n\t\tif ( typeof window !== 'undefined' ) animation.setContext( window );\n\n\t\tthis.setAnimationLoop = function ( callback ) {\n\n\t\t\tonAnimationFrameCallback = callback;\n\t\t\tvr.setAnimationLoop( callback );\n\n\t\t\tanimation.start();\n\n\t\t};\n\n\t\t// Rendering\n\n\t\tthis.render = function ( scene, camera, renderTarget, forceClear ) {\n\n\t\t\tif ( ! ( camera && camera.isCamera ) ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( _isContextLost ) return;\n\n\t\t\t// reset caching for this frame\n\n\t\t\t_currentGeometryProgram.geometry = null;\n\t\t\t_currentGeometryProgram.program = null;\n\t\t\t_currentGeometryProgram.wireframe = false;\n\t\t\t_currentMaterialId = - 1;\n\t\t\t_currentCamera = null;\n\n\t\t\t// update scene graph\n\n\t\t\tif ( scene.autoUpdate === true ) scene.updateMatrixWorld();\n\n\t\t\t// update camera matrices and frustum\n\n\t\t\tif ( camera.parent === null ) camera.updateMatrixWorld();\n\n\t\t\tif ( vr.enabled ) {\n\n\t\t\t\tcamera = vr.getCamera( camera );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tcurrentRenderState = renderStates.get( scene, camera );\n\t\t\tcurrentRenderState.init();\n\n\t\t\tscene.onBeforeRender( _this, scene, camera, renderTarget );\n\n\t\t\t_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );\n\t\t\t_frustum.setFromMatrix( _projScreenMatrix );\n\n\t\t\t_localClippingEnabled = this.localClippingEnabled;\n\t\t\t_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );\n\n\t\t\tcurrentRenderList = renderLists.get( scene, camera );\n\t\t\tcurrentRenderList.init();\n\n\t\t\tprojectObject( scene, camera, _this.sortObjects );\n\n\t\t\tif ( _this.sortObjects === true ) {\n\n\t\t\t\tcurrentRenderList.sort();\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( _clippingEnabled ) _clipping.beginShadows();\n\n\t\t\tvar shadowsArray = currentRenderState.state.shadowsArray;\n\n\t\t\tshadowMap.render( shadowsArray, scene, camera );\n\n\t\t\tcurrentRenderState.setupLights( camera );\n\n\t\t\tif ( _clippingEnabled ) _clipping.endShadows();\n\n\t\t\t//\n\n\t\t\tif ( this.info.autoReset ) this.info.reset();\n\n\t\t\tif ( renderTarget === undefined ) {\n\n\t\t\t\trenderTarget = null;\n\n\t\t\t}\n\n\t\t\tthis.setRenderTarget( renderTarget );\n\n\t\t\t//\n\n\t\t\tbackground.render( currentRenderList, scene, camera, forceClear );\n\n\t\t\t// render scene\n\n\t\t\tvar opaqueObjects = currentRenderList.opaque;\n\t\t\tvar transparentObjects = currentRenderList.transparent;\n\n\t\t\tif ( scene.overrideMaterial ) {\n\n\t\t\t\tvar overrideMaterial = scene.overrideMaterial;\n\n\t\t\t\tif ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );\n\t\t\t\tif ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );\n\n\t\t\t} else {\n\n\t\t\t\t// opaque pass (front-to-back order)\n\n\t\t\t\tif ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );\n\n\t\t\t\t// transparent pass (back-to-front order)\n\n\t\t\t\tif ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );\n\n\t\t\t}\n\n\t\t\t// Generate mipmap if we're using any kind of mipmap filtering\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\ttextures.updateRenderTargetMipmap( renderTarget );\n\n\t\t\t}\n\n\t\t\t// Ensure depth buffer writing is enabled so it can be cleared on next render\n\n\t\t\tstate.buffers.depth.setTest( true );\n\t\t\tstate.buffers.depth.setMask( true );\n\t\t\tstate.buffers.color.setMask( true );\n\n\t\t\tstate.setPolygonOffset( false );\n\n\t\t\tscene.onAfterRender( _this, scene, camera );\n\n\t\t\tif ( vr.enabled ) {\n\n\t\t\t\tvr.submitFrame();\n\n\t\t\t}\n\n\t\t\t// _gl.finish();\n\n\t\t\tcurrentRenderList = null;\n\t\t\tcurrentRenderState = null;\n\n\t\t};\n\n\t\t/*\n\t\t// TODO Duplicated code (Frustum)\n\n\t\tvar _sphere = new Sphere();\n\n\t\tfunction isObjectViewable( object ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( geometry.boundingSphere === null )\n\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t_sphere.copy( geometry.boundingSphere ).\n\t\t\tapplyMatrix4( object.matrixWorld );\n\n\t\t\treturn isSphereViewable( _sphere );\n\n\t\t}\n\n\t\tfunction isSpriteViewable( sprite ) {\n\n\t\t\t_sphere.center.set( 0, 0, 0 );\n\t\t\t_sphere.radius = 0.7071067811865476;\n\t\t\t_sphere.applyMatrix4( sprite.matrixWorld );\n\n\t\t\treturn isSphereViewable( _sphere );\n\n\t\t}\n\n\t\tfunction isSphereViewable( sphere ) {\n\n\t\t\tif ( ! _frustum.intersectsSphere( sphere ) ) return false;\n\n\t\t\tvar numPlanes = _clipping.numPlanes;\n\n\t\t\tif ( numPlanes === 0 ) return true;\n\n\t\t\tvar planes = _this.clippingPlanes,\n\n\t\t\t\tcenter = sphere.center,\n\t\t\t\tnegRad = - sphere.radius,\n\t\t\t\ti = 0;\n\n\t\t\tdo {\n\n\t\t\t\t// out when deeper than radius in the negative halfspace\n\t\t\t\tif ( planes[ i ].distanceToPoint( center ) < negRad ) return false;\n\n\t\t\t} while ( ++ i !== numPlanes );\n\n\t\t\treturn true;\n\n\t\t}\n\t\t*/\n\n\t\tfunction projectObject( object, camera, sortObjects ) {\n\n\t\t\tif ( object.visible === false ) return;\n\n\t\t\tvar visible = object.layers.test( camera.layers );\n\n\t\t\tif ( visible ) {\n\n\t\t\t\tif ( object.isLight ) {\n\n\t\t\t\t\tcurrentRenderState.pushLight( object );\n\n\t\t\t\t\tif ( object.castShadow ) {\n\n\t\t\t\t\t\tcurrentRenderState.pushShadow( object );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( object.isSprite ) {\n\n\t\t\t\t\tif ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {\n\n\t\t\t\t\t\tif ( sortObjects ) {\n\n\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld )\n\t\t\t\t\t\t\t\t.applyMatrix4( _projScreenMatrix );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar geometry = objects.update( object );\n\t\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\t\tcurrentRenderList.push( object, geometry, material, _vector3.z, null );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( object.isImmediateRenderObject ) {\n\n\t\t\t\t\tif ( sortObjects ) {\n\n\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld )\n\t\t\t\t\t\t\t.applyMatrix4( _projScreenMatrix );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tcurrentRenderList.push( object, null, object.material, _vector3.z, null );\n\n\t\t\t\t} else if ( object.isMesh || object.isLine || object.isPoints ) {\n\n\t\t\t\t\tif ( object.isSkinnedMesh ) {\n\n\t\t\t\t\t\tobject.skeleton.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {\n\n\t\t\t\t\t\tif ( sortObjects ) {\n\n\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld )\n\t\t\t\t\t\t\t\t.applyMatrix4( _projScreenMatrix );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar geometry = objects.update( object );\n\t\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\t\tvar groups = geometry.groups;\n\n\t\t\t\t\t\t\tfor ( var i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\t\tvar group = groups[ i ];\n\t\t\t\t\t\t\t\tvar groupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\tif ( groupMaterial && groupMaterial.visible ) {\n\n\t\t\t\t\t\t\t\t\tcurrentRenderList.push( object, geometry, groupMaterial, _vector3.z, group );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else if ( material.visible ) {\n\n\t\t\t\t\t\t\tcurrentRenderList.push( object, geometry, material, _vector3.z, null );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tprojectObject( children[ i ], camera, sortObjects );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction renderObjects( renderList, scene, camera, overrideMaterial ) {\n\n\t\t\tfor ( var i = 0, l = renderList.length; i < l; i ++ ) {\n\n\t\t\t\tvar renderItem = renderList[ i ];\n\n\t\t\t\tvar object = renderItem.object;\n\t\t\t\tvar geometry = renderItem.geometry;\n\t\t\t\tvar material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;\n\t\t\t\tvar group = renderItem.group;\n\n\t\t\t\tif ( camera.isArrayCamera ) {\n\n\t\t\t\t\t_currentArrayCamera = camera;\n\n\t\t\t\t\tvar cameras = camera.cameras;\n\n\t\t\t\t\tfor ( var j = 0, jl = cameras.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar camera2 = cameras[ j ];\n\n\t\t\t\t\t\tif ( object.layers.test( camera2.layers ) ) {\n\n\t\t\t\t\t\t\tif ( 'viewport' in camera2 ) { // XR\n\n\t\t\t\t\t\t\t\tstate.viewport( _currentViewport.copy( camera2.viewport ) );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tvar bounds = camera2.bounds;\n\n\t\t\t\t\t\t\t\tvar x = bounds.x * _width;\n\t\t\t\t\t\t\t\tvar y = bounds.y * _height;\n\t\t\t\t\t\t\t\tvar width = bounds.z * _width;\n\t\t\t\t\t\t\t\tvar height = bounds.w * _height;\n\n\t\t\t\t\t\t\t\tstate.viewport( _currentViewport.set( x, y, width, height ).multiplyScalar( _pixelRatio ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\trenderObject( object, scene, camera2, geometry, material, group );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t_currentArrayCamera = null;\n\n\t\t\t\t\trenderObject( object, scene, camera, geometry, material, group );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction renderObject( object, scene, camera, geometry, material, group ) {\n\n\t\t\tobject.onBeforeRender( _this, scene, camera, geometry, material, group );\n\t\t\tcurrentRenderState = renderStates.get( scene, _currentArrayCamera || camera );\n\n\t\t\tobject.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );\n\t\t\tobject.normalMatrix.getNormalMatrix( object.modelViewMatrix );\n\n\t\t\tif ( object.isImmediateRenderObject ) {\n\n\t\t\t\tstate.setMaterial( material );\n\n\t\t\t\tvar program = setProgram( camera, scene.fog, material, object );\n\n\t\t\t\t_currentGeometryProgram.geometry = null;\n\t\t\t\t_currentGeometryProgram.program = null;\n\t\t\t\t_currentGeometryProgram.wireframe = false;\n\n\t\t\t\trenderObjectImmediate( object, program );\n\n\t\t\t} else {\n\n\t\t\t\t_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );\n\n\t\t\t}\n\n\t\t\tobject.onAfterRender( _this, scene, camera, geometry, material, group );\n\t\t\tcurrentRenderState = renderStates.get( scene, _currentArrayCamera || camera );\n\n\t\t}\n\n\t\tfunction initMaterial( material, fog, object ) {\n\n\t\t\tvar materialProperties = properties.get( material );\n\n\t\t\tvar lights = currentRenderState.state.lights;\n\t\t\tvar shadowsArray = currentRenderState.state.shadowsArray;\n\n\t\t\tvar lightsHash = materialProperties.lightsHash;\n\t\t\tvar lightsStateHash = lights.state.hash;\n\n\t\t\tvar parameters = programCache.getParameters(\n\t\t\t\tmaterial, lights.state, shadowsArray, fog, _clipping.numPlanes, _clipping.numIntersection, object );\n\n\t\t\tvar code = programCache.getProgramCode( material, parameters );\n\n\t\t\tvar program = materialProperties.program;\n\t\t\tvar programChange = true;\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\t// new material\n\t\t\t\tmaterial.addEventListener( 'dispose', onMaterialDispose );\n\n\t\t\t} else if ( program.code !== code ) {\n\n\t\t\t\t// changed glsl or parameters\n\t\t\t\treleaseMaterialProgramReference( material );\n\n\t\t\t} else if ( lightsHash.stateID !== lightsStateHash.stateID ||\n\t\t\t\tlightsHash.directionalLength !== lightsStateHash.directionalLength ||\n\t\t\t\tlightsHash.pointLength !== lightsStateHash.pointLength ||\n\t\t\t\tlightsHash.spotLength !== lightsStateHash.spotLength ||\n\t\t\t\tlightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||\n\t\t\t\tlightsHash.hemiLength !== lightsStateHash.hemiLength ||\n\t\t\t\tlightsHash.shadowsLength !== lightsStateHash.shadowsLength ) {\n\n\t\t\t\tlightsHash.stateID = lightsStateHash.stateID;\n\t\t\t\tlightsHash.directionalLength = lightsStateHash.directionalLength;\n\t\t\t\tlightsHash.pointLength = lightsStateHash.pointLength;\n\t\t\t\tlightsHash.spotLength = lightsStateHash.spotLength;\n\t\t\t\tlightsHash.rectAreaLength = lightsStateHash.rectAreaLength;\n\t\t\t\tlightsHash.hemiLength = lightsStateHash.hemiLength;\n\t\t\t\tlightsHash.shadowsLength = lightsStateHash.shadowsLength;\n\n\t\t\t\tprogramChange = false;\n\n\t\t\t} else if ( parameters.shaderID !== undefined ) {\n\n\t\t\t\t// same glsl and uniform list\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\t// only rebuild uniform list\n\t\t\t\tprogramChange = false;\n\n\t\t\t}\n\n\t\t\tif ( programChange ) {\n\n\t\t\t\tif ( parameters.shaderID ) {\n\n\t\t\t\t\tvar shader = ShaderLib[ parameters.shaderID ];\n\n\t\t\t\t\tmaterialProperties.shader = {\n\t\t\t\t\t\tname: material.type,\n\t\t\t\t\t\tuniforms: UniformsUtils.clone( shader.uniforms ),\n\t\t\t\t\t\tvertexShader: shader.vertexShader,\n\t\t\t\t\t\tfragmentShader: shader.fragmentShader\n\t\t\t\t\t};\n\n\t\t\t\t} else {\n\n\t\t\t\t\tmaterialProperties.shader = {\n\t\t\t\t\t\tname: material.type,\n\t\t\t\t\t\tuniforms: material.uniforms,\n\t\t\t\t\t\tvertexShader: material.vertexShader,\n\t\t\t\t\t\tfragmentShader: material.fragmentShader\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t\tmaterial.onBeforeCompile( materialProperties.shader, _this );\n\n\t\t\t\t// Computing code again as onBeforeCompile may have changed the shaders\n\t\t\t\tcode = programCache.getProgramCode( material, parameters );\n\n\t\t\t\tprogram = programCache.acquireProgram( material, materialProperties.shader, parameters, code );\n\n\t\t\t\tmaterialProperties.program = program;\n\t\t\t\tmaterial.program = program;\n\n\t\t\t}\n\n\t\t\tvar programAttributes = program.getAttributes();\n\n\t\t\tif ( material.morphTargets ) {\n\n\t\t\t\tmaterial.numSupportedMorphTargets = 0;\n\n\t\t\t\tfor ( var i = 0; i < _this.maxMorphTargets; i ++ ) {\n\n\t\t\t\t\tif ( programAttributes[ 'morphTarget' + i ] >= 0 ) {\n\n\t\t\t\t\t\tmaterial.numSupportedMorphTargets ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.morphNormals ) {\n\n\t\t\t\tmaterial.numSupportedMorphNormals = 0;\n\n\t\t\t\tfor ( var i = 0; i < _this.maxMorphNormals; i ++ ) {\n\n\t\t\t\t\tif ( programAttributes[ 'morphNormal' + i ] >= 0 ) {\n\n\t\t\t\t\t\tmaterial.numSupportedMorphNormals ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar uniforms = materialProperties.shader.uniforms;\n\n\t\t\tif ( ! material.isShaderMaterial &&\n\t\t\t\t! material.isRawShaderMaterial ||\n\t\t\t\tmaterial.clipping === true ) {\n\n\t\t\t\tmaterialProperties.numClippingPlanes = _clipping.numPlanes;\n\t\t\t\tmaterialProperties.numIntersection = _clipping.numIntersection;\n\t\t\t\tuniforms.clippingPlanes = _clipping.uniform;\n\n\t\t\t}\n\n\t\t\tmaterialProperties.fog = fog;\n\n\t\t\t// store the light setup it was created for\n\t\t\tif ( lightsHash === undefined ) {\n\n\t\t\t\tmaterialProperties.lightsHash = lightsHash = {};\n\n\t\t\t}\n\n\t\t\tlightsHash.stateID = lightsStateHash.stateID;\n\t\t\tlightsHash.directionalLength = lightsStateHash.directionalLength;\n\t\t\tlightsHash.pointLength = lightsStateHash.pointLength;\n\t\t\tlightsHash.spotLength = lightsStateHash.spotLength;\n\t\t\tlightsHash.rectAreaLength = lightsStateHash.rectAreaLength;\n\t\t\tlightsHash.hemiLength = lightsStateHash.hemiLength;\n\t\t\tlightsHash.shadowsLength = lightsStateHash.shadowsLength;\n\n\t\t\tif ( material.lights ) {\n\n\t\t\t\t// wire up the material to this renderer's lighting state\n\n\t\t\t\tuniforms.ambientLightColor.value = lights.state.ambient;\n\t\t\t\tuniforms.directionalLights.value = lights.state.directional;\n\t\t\t\tuniforms.spotLights.value = lights.state.spot;\n\t\t\t\tuniforms.rectAreaLights.value = lights.state.rectArea;\n\t\t\t\tuniforms.pointLights.value = lights.state.point;\n\t\t\t\tuniforms.hemisphereLights.value = lights.state.hemi;\n\n\t\t\t\tuniforms.directionalShadowMap.value = lights.state.directionalShadowMap;\n\t\t\t\tuniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;\n\t\t\t\tuniforms.spotShadowMap.value = lights.state.spotShadowMap;\n\t\t\t\tuniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;\n\t\t\t\tuniforms.pointShadowMap.value = lights.state.pointShadowMap;\n\t\t\t\tuniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;\n\t\t\t\t// TODO (abelnation): add area lights shadow info to uniforms\n\n\t\t\t}\n\n\t\t\tvar progUniforms = materialProperties.program.getUniforms(),\n\t\t\t\tuniformsList =\n\t\t\t\t\tWebGLUniforms.seqWithValue( progUniforms.seq, uniforms );\n\n\t\t\tmaterialProperties.uniformsList = uniformsList;\n\n\t\t}\n\n\t\tfunction setProgram( camera, fog, material, object ) {\n\n\t\t\t_usedTextureUnits = 0;\n\n\t\t\tvar materialProperties = properties.get( material );\n\t\t\tvar lights = currentRenderState.state.lights;\n\n\t\t\tvar lightsHash = materialProperties.lightsHash;\n\t\t\tvar lightsStateHash = lights.state.hash;\n\n\t\t\tif ( _clippingEnabled ) {\n\n\t\t\t\tif ( _localClippingEnabled || camera !== _currentCamera ) {\n\n\t\t\t\t\tvar useCache =\n\t\t\t\t\t\tcamera === _currentCamera &&\n\t\t\t\t\t\tmaterial.id === _currentMaterialId;\n\n\t\t\t\t\t// we might want to call this function with some ClippingGroup\n\t\t\t\t\t// object instead of the material, once it becomes feasible\n\t\t\t\t\t// (#8465, #8379)\n\t\t\t\t\t_clipping.setState(\n\t\t\t\t\t\tmaterial.clippingPlanes, material.clipIntersection, material.clipShadows,\n\t\t\t\t\t\tcamera, materialProperties, useCache );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.needsUpdate === false ) {\n\n\t\t\t\tif ( materialProperties.program === undefined ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( material.fog && materialProperties.fog !== fog ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( material.lights && ( lightsHash.stateID !== lightsStateHash.stateID ||\n\t\t\t\t\tlightsHash.directionalLength !== lightsStateHash.directionalLength ||\n\t\t\t\t\tlightsHash.pointLength !== lightsStateHash.pointLength ||\n\t\t\t\t\tlightsHash.spotLength !== lightsStateHash.spotLength ||\n\t\t\t\t\tlightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||\n\t\t\t\t\tlightsHash.hemiLength !== lightsStateHash.hemiLength ||\n\t\t\t\t\tlightsHash.shadowsLength !== lightsStateHash.shadowsLength ) ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( materialProperties.numClippingPlanes !== undefined &&\n\t\t\t\t\t( materialProperties.numClippingPlanes !== _clipping.numPlanes ||\n\t\t\t\t\tmaterialProperties.numIntersection !== _clipping.numIntersection ) ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.needsUpdate ) {\n\n\t\t\t\tinitMaterial( material, fog, object );\n\t\t\t\tmaterial.needsUpdate = false;\n\n\t\t\t}\n\n\t\t\tvar refreshProgram = false;\n\t\t\tvar refreshMaterial = false;\n\t\t\tvar refreshLights = false;\n\n\t\t\tvar program = materialProperties.program,\n\t\t\t\tp_uniforms = program.getUniforms(),\n\t\t\t\tm_uniforms = materialProperties.shader.uniforms;\n\n\t\t\tif ( state.useProgram( program.program ) ) {\n\n\t\t\t\trefreshProgram = true;\n\t\t\t\trefreshMaterial = true;\n\t\t\t\trefreshLights = true;\n\n\t\t\t}\n\n\t\t\tif ( material.id !== _currentMaterialId ) {\n\n\t\t\t\t_currentMaterialId = material.id;\n\n\t\t\t\trefreshMaterial = true;\n\n\t\t\t}\n\n\t\t\tif ( refreshProgram || camera !== _currentCamera ) {\n\n\t\t\t\tp_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );\n\n\t\t\t\tif ( capabilities.logarithmicDepthBuffer ) {\n\n\t\t\t\t\tp_uniforms.setValue( _gl, 'logDepthBufFC',\n\t\t\t\t\t\t2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );\n\n\t\t\t\t}\n\n\t\t\t\t// Avoid unneeded uniform updates per ArrayCamera's sub-camera\n\n\t\t\t\tif ( _currentCamera !== ( _currentArrayCamera || camera ) ) {\n\n\t\t\t\t\t_currentCamera = ( _currentArrayCamera || camera );\n\n\t\t\t\t\t// lighting uniforms depend on the camera so enforce an update\n\t\t\t\t\t// now, in case this material supports lights - or later, when\n\t\t\t\t\t// the next material that does gets activated:\n\n\t\t\t\t\trefreshMaterial = true;\t\t// set to true on material change\n\t\t\t\t\trefreshLights = true;\t\t// remains set until update done\n\n\t\t\t\t}\n\n\t\t\t\t// load material specific uniforms\n\t\t\t\t// (shader material also gets them for the sake of genericity)\n\n\t\t\t\tif ( material.isShaderMaterial ||\n\t\t\t\t\tmaterial.isMeshPhongMaterial ||\n\t\t\t\t\tmaterial.isMeshStandardMaterial ||\n\t\t\t\t\tmaterial.envMap ) {\n\n\t\t\t\t\tvar uCamPos = p_uniforms.map.cameraPosition;\n\n\t\t\t\t\tif ( uCamPos !== undefined ) {\n\n\t\t\t\t\t\tuCamPos.setValue( _gl,\n\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( camera.matrixWorld ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( material.isMeshPhongMaterial ||\n\t\t\t\t\tmaterial.isMeshLambertMaterial ||\n\t\t\t\t\tmaterial.isMeshBasicMaterial ||\n\t\t\t\t\tmaterial.isMeshStandardMaterial ||\n\t\t\t\t\tmaterial.isShaderMaterial ||\n\t\t\t\t\tmaterial.skinning ) {\n\n\t\t\t\t\tp_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// skinning uniforms must be set even if material didn't change\n\t\t\t// auto-setting of texture unit for bone texture must go before other textures\n\t\t\t// not sure why, but otherwise weird things happen\n\n\t\t\tif ( material.skinning ) {\n\n\t\t\t\tp_uniforms.setOptional( _gl, object, 'bindMatrix' );\n\t\t\t\tp_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );\n\n\t\t\t\tvar skeleton = object.skeleton;\n\n\t\t\t\tif ( skeleton ) {\n\n\t\t\t\t\tvar bones = skeleton.bones;\n\n\t\t\t\t\tif ( capabilities.floatVertexTextures ) {\n\n\t\t\t\t\t\tif ( skeleton.boneTexture === undefined ) {\n\n\t\t\t\t\t\t\t// layout (1 matrix = 4 pixels)\n\t\t\t\t\t\t\t// RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)\n\t\t\t\t\t\t\t// with 8x8 pixel texture max 16 bones * 4 pixels = (8 * 8)\n\t\t\t\t\t\t\t// 16x16 pixel texture max 64 bones * 4 pixels = (16 * 16)\n\t\t\t\t\t\t\t// 32x32 pixel texture max 256 bones * 4 pixels = (32 * 32)\n\t\t\t\t\t\t\t// 64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)\n\n\n\t\t\t\t\t\t\tvar size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix\n\t\t\t\t\t\t\tsize = _Math.ceilPowerOfTwo( size );\n\t\t\t\t\t\t\tsize = Math.max( size, 4 );\n\n\t\t\t\t\t\t\tvar boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel\n\t\t\t\t\t\t\tboneMatrices.set( skeleton.boneMatrices ); // copy current values\n\n\t\t\t\t\t\t\tvar boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );\n\t\t\t\t\t\t\tboneTexture.needsUpdate = true;\n\n\t\t\t\t\t\t\tskeleton.boneMatrices = boneMatrices;\n\t\t\t\t\t\t\tskeleton.boneTexture = boneTexture;\n\t\t\t\t\t\t\tskeleton.boneTextureSize = size;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tp_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture );\n\t\t\t\t\t\tp_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tp_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( refreshMaterial ) {\n\n\t\t\t\tp_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );\n\t\t\t\tp_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );\n\n\t\t\t\tif ( material.lights ) {\n\n\t\t\t\t\t// the current material requires lighting info\n\n\t\t\t\t\t// note: all lighting uniforms are always set correctly\n\t\t\t\t\t// they simply reference the renderer's state for their\n\t\t\t\t\t// values\n\t\t\t\t\t//\n\t\t\t\t\t// use the current material's .needsUpdate flags to set\n\t\t\t\t\t// the GL state when required\n\n\t\t\t\t\tmarkUniformsLightsNeedsUpdate( m_uniforms, refreshLights );\n\n\t\t\t\t}\n\n\t\t\t\t// refresh uniforms common to several materials\n\n\t\t\t\tif ( fog && material.fog ) {\n\n\t\t\t\t\trefreshUniformsFog( m_uniforms, fog );\n\n\t\t\t\t}\n\n\t\t\t\tif ( material.isMeshBasicMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshLambertMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsLambert( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshPhongMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\n\t\t\t\t\tif ( material.isMeshToonMaterial ) {\n\n\t\t\t\t\t\trefreshUniformsToon( m_uniforms, material );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\trefreshUniformsPhong( m_uniforms, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( material.isMeshStandardMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\n\t\t\t\t\tif ( material.isMeshPhysicalMaterial ) {\n\n\t\t\t\t\t\trefreshUniformsPhysical( m_uniforms, material );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\trefreshUniformsStandard( m_uniforms, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( material.isMeshDepthMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsDepth( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshDistanceMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsDistance( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshNormalMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsNormal( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isLineBasicMaterial ) {\n\n\t\t\t\t\trefreshUniformsLine( m_uniforms, material );\n\n\t\t\t\t\tif ( material.isLineDashedMaterial ) {\n\n\t\t\t\t\t\trefreshUniformsDash( m_uniforms, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( material.isPointsMaterial ) {\n\n\t\t\t\t\trefreshUniformsPoints( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isSpriteMaterial ) {\n\n\t\t\t\t\trefreshUniformsSprites( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isShadowMaterial ) {\n\n\t\t\t\t\tm_uniforms.color.value = material.color;\n\t\t\t\t\tm_uniforms.opacity.value = material.opacity;\n\n\t\t\t\t}\n\n\t\t\t\t// RectAreaLight Texture\n\t\t\t\t// TODO (mrdoob): Find a nicer implementation\n\n\t\t\t\tif ( m_uniforms.ltc_1 !== undefined ) m_uniforms.ltc_1.value = UniformsLib.LTC_1;\n\t\t\t\tif ( m_uniforms.ltc_2 !== undefined ) m_uniforms.ltc_2.value = UniformsLib.LTC_2;\n\n\t\t\t\tWebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );\n\n\t\t\t}\n\n\t\t\tif ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {\n\n\t\t\t\tWebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );\n\t\t\t\tmaterial.uniformsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( material.isSpriteMaterial ) {\n\n\t\t\t\tp_uniforms.setValue( _gl, 'center', object.center );\n\n\t\t\t}\n\n\t\t\t// common matrices\n\n\t\t\tp_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );\n\t\t\tp_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );\n\t\t\tp_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );\n\n\t\t\treturn program;\n\n\t\t}\n\n\t\t// Uniforms (refresh uniforms objects)\n\n\t\tfunction refreshUniformsCommon( uniforms, material ) {\n\n\t\t\tuniforms.opacity.value = material.opacity;\n\n\t\t\tif ( material.color ) {\n\n\t\t\t\tuniforms.diffuse.value = material.color;\n\n\t\t\t}\n\n\t\t\tif ( material.emissive ) {\n\n\t\t\t\tuniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );\n\n\t\t\t}\n\n\t\t\tif ( material.map ) {\n\n\t\t\t\tuniforms.map.value = material.map;\n\n\t\t\t}\n\n\t\t\tif ( material.alphaMap ) {\n\n\t\t\t\tuniforms.alphaMap.value = material.alphaMap;\n\n\t\t\t}\n\n\t\t\tif ( material.specularMap ) {\n\n\t\t\t\tuniforms.specularMap.value = material.specularMap;\n\n\t\t\t}\n\n\t\t\tif ( material.envMap ) {\n\n\t\t\t\tuniforms.envMap.value = material.envMap;\n\n\t\t\t\t// don't flip CubeTexture envMaps, flip everything else:\n\t\t\t\t// WebGLRenderTargetCube will be flipped for backwards compatibility\n\t\t\t\t// WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture\n\t\t\t\t// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future\n\t\t\t\tuniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1;\n\n\t\t\t\tuniforms.reflectivity.value = material.reflectivity;\n\t\t\t\tuniforms.refractionRatio.value = material.refractionRatio;\n\n\t\t\t\tuniforms.maxMipLevel.value = properties.get( material.envMap ).__maxMipLevel;\n\n\t\t\t}\n\n\t\t\tif ( material.lightMap ) {\n\n\t\t\t\tuniforms.lightMap.value = material.lightMap;\n\t\t\t\tuniforms.lightMapIntensity.value = material.lightMapIntensity;\n\n\t\t\t}\n\n\t\t\tif ( material.aoMap ) {\n\n\t\t\t\tuniforms.aoMap.value = material.aoMap;\n\t\t\t\tuniforms.aoMapIntensity.value = material.aoMapIntensity;\n\n\t\t\t}\n\n\t\t\t// uv repeat and offset setting priorities\n\t\t\t// 1. color map\n\t\t\t// 2. specular map\n\t\t\t// 3. normal map\n\t\t\t// 4. bump map\n\t\t\t// 5. alpha map\n\t\t\t// 6. emissive map\n\n\t\t\tvar uvScaleMap;\n\n\t\t\tif ( material.map ) {\n\n\t\t\t\tuvScaleMap = material.map;\n\n\t\t\t} else if ( material.specularMap ) {\n\n\t\t\t\tuvScaleMap = material.specularMap;\n\n\t\t\t} else if ( material.displacementMap ) {\n\n\t\t\t\tuvScaleMap = material.displacementMap;\n\n\t\t\t} else if ( material.normalMap ) {\n\n\t\t\t\tuvScaleMap = material.normalMap;\n\n\t\t\t} else if ( material.bumpMap ) {\n\n\t\t\t\tuvScaleMap = material.bumpMap;\n\n\t\t\t} else if ( material.roughnessMap ) {\n\n\t\t\t\tuvScaleMap = material.roughnessMap;\n\n\t\t\t} else if ( material.metalnessMap ) {\n\n\t\t\t\tuvScaleMap = material.metalnessMap;\n\n\t\t\t} else if ( material.alphaMap ) {\n\n\t\t\t\tuvScaleMap = material.alphaMap;\n\n\t\t\t} else if ( material.emissiveMap ) {\n\n\t\t\t\tuvScaleMap = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( uvScaleMap !== undefined ) {\n\n\t\t\t\t// backwards compatibility\n\t\t\t\tif ( uvScaleMap.isWebGLRenderTarget ) {\n\n\t\t\t\t\tuvScaleMap = uvScaleMap.texture;\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvScaleMap.matrixAutoUpdate === true ) {\n\n\t\t\t\t\tuvScaleMap.updateMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tuniforms.uvTransform.value.copy( uvScaleMap.matrix );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsLine( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\n\t\t}\n\n\t\tfunction refreshUniformsDash( uniforms, material ) {\n\n\t\t\tuniforms.dashSize.value = material.dashSize;\n\t\t\tuniforms.totalSize.value = material.dashSize + material.gapSize;\n\t\t\tuniforms.scale.value = material.scale;\n\n\t\t}\n\n\t\tfunction refreshUniformsPoints( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\t\t\tuniforms.size.value = material.size * _pixelRatio;\n\t\t\tuniforms.scale.value = _height * 0.5;\n\n\t\t\tuniforms.map.value = material.map;\n\n\t\t\tif ( material.map !== null ) {\n\n\t\t\t\tif ( material.map.matrixAutoUpdate === true ) {\n\n\t\t\t\t\tmaterial.map.updateMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tuniforms.uvTransform.value.copy( material.map.matrix );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsSprites( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\t\t\tuniforms.rotation.value = material.rotation;\n\t\t\tuniforms.map.value = material.map;\n\n\t\t\tif ( material.map !== null ) {\n\n\t\t\t\tif ( material.map.matrixAutoUpdate === true ) {\n\n\t\t\t\t\tmaterial.map.updateMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tuniforms.uvTransform.value.copy( material.map.matrix );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsFog( uniforms, fog ) {\n\n\t\t\tuniforms.fogColor.value = fog.color;\n\n\t\t\tif ( fog.isFog ) {\n\n\t\t\t\tuniforms.fogNear.value = fog.near;\n\t\t\t\tuniforms.fogFar.value = fog.far;\n\n\t\t\t} else if ( fog.isFogExp2 ) {\n\n\t\t\t\tuniforms.fogDensity.value = fog.density;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsLambert( uniforms, material ) {\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsPhong( uniforms, material ) {\n\n\t\t\tuniforms.specular.value = material.specular;\n\t\t\tuniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\t\t\t\tif ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\t\t\t\tif ( material.side === BackSide ) uniforms.normalScale.value.negate();\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsToon( uniforms, material ) {\n\n\t\t\trefreshUniformsPhong( uniforms, material );\n\n\t\t\tif ( material.gradientMap ) {\n\n\t\t\t\tuniforms.gradientMap.value = material.gradientMap;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsStandard( uniforms, material ) {\n\n\t\t\tuniforms.roughness.value = material.roughness;\n\t\t\tuniforms.metalness.value = material.metalness;\n\n\t\t\tif ( material.roughnessMap ) {\n\n\t\t\t\tuniforms.roughnessMap.value = material.roughnessMap;\n\n\t\t\t}\n\n\t\t\tif ( material.metalnessMap ) {\n\n\t\t\t\tuniforms.metalnessMap.value = material.metalnessMap;\n\n\t\t\t}\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\t\t\t\tif ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\t\t\t\tif ( material.side === BackSide ) uniforms.normalScale.value.negate();\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t\tif ( material.envMap ) {\n\n\t\t\t\t//uniforms.envMap.value = material.envMap; // part of uniforms common\n\t\t\t\tuniforms.envMapIntensity.value = material.envMapIntensity;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsPhysical( uniforms, material ) {\n\n\t\t\trefreshUniformsStandard( uniforms, material );\n\n\t\t\tuniforms.reflectivity.value = material.reflectivity; // also part of uniforms common\n\n\t\t\tuniforms.clearCoat.value = material.clearCoat;\n\t\t\tuniforms.clearCoatRoughness.value = material.clearCoatRoughness;\n\n\t\t}\n\n\t\tfunction refreshUniformsDepth( uniforms, material ) {\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsDistance( uniforms, material ) {\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t\tuniforms.referencePosition.value.copy( material.referencePosition );\n\t\t\tuniforms.nearDistance.value = material.nearDistance;\n\t\t\tuniforms.farDistance.value = material.farDistance;\n\n\t\t}\n\n\t\tfunction refreshUniformsNormal( uniforms, material ) {\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\t\t\t\tif ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\t\t\t\tif ( material.side === BackSide ) uniforms.normalScale.value.negate();\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// If uniforms are marked as clean, they don't need to be loaded to the GPU.\n\n\t\tfunction markUniformsLightsNeedsUpdate( uniforms, value ) {\n\n\t\t\tuniforms.ambientLightColor.needsUpdate = value;\n\n\t\t\tuniforms.directionalLights.needsUpdate = value;\n\t\t\tuniforms.pointLights.needsUpdate = value;\n\t\t\tuniforms.spotLights.needsUpdate = value;\n\t\t\tuniforms.rectAreaLights.needsUpdate = value;\n\t\t\tuniforms.hemisphereLights.needsUpdate = value;\n\n\t\t}\n\n\t\t// Textures\n\n\t\tfunction allocTextureUnit() {\n\n\t\t\tvar textureUnit = _usedTextureUnits;\n\n\t\t\tif ( textureUnit >= capabilities.maxTextures ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );\n\n\t\t\t}\n\n\t\t\t_usedTextureUnits += 1;\n\n\t\t\treturn textureUnit;\n\n\t\t}\n\n\t\tthis.allocTextureUnit = allocTextureUnit;\n\n\t\t// this.setTexture2D = setTexture2D;\n\t\tthis.setTexture2D = ( function () {\n\n\t\t\tvar warned = false;\n\n\t\t\t// backwards compatibility: peel texture.texture\n\t\t\treturn function setTexture2D( texture, slot ) {\n\n\t\t\t\tif ( texture && texture.isWebGLRenderTarget ) {\n\n\t\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead.\" );\n\t\t\t\t\t\twarned = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture = texture.texture;\n\n\t\t\t\t}\n\n\t\t\t\ttextures.setTexture2D( texture, slot );\n\n\t\t\t};\n\n\t\t}() );\n\n\t\tthis.setTexture = ( function () {\n\n\t\t\tvar warned = false;\n\n\t\t\treturn function setTexture( texture, slot ) {\n\n\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead.\" );\n\t\t\t\t\twarned = true;\n\n\t\t\t\t}\n\n\t\t\t\ttextures.setTexture2D( texture, slot );\n\n\t\t\t};\n\n\t\t}() );\n\n\t\tthis.setTextureCube = ( function () {\n\n\t\t\tvar warned = false;\n\n\t\t\treturn function setTextureCube( texture, slot ) {\n\n\t\t\t\t// backwards compatibility: peel texture.texture\n\t\t\t\tif ( texture && texture.isWebGLRenderTargetCube ) {\n\n\t\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead.\" );\n\t\t\t\t\t\twarned = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture = texture.texture;\n\n\t\t\t\t}\n\n\t\t\t\t// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture\n\t\t\t\t// TODO: unify these code paths\n\t\t\t\tif ( ( texture && texture.isCubeTexture ) ||\n\t\t\t\t\t( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {\n\n\t\t\t\t\t// CompressedTexture can have Array in image :/\n\n\t\t\t\t\t// this function alone should take care of cube textures\n\t\t\t\t\ttextures.setTextureCube( texture, slot );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// assumed: texture property of THREE.WebGLRenderTargetCube\n\n\t\t\t\t\ttextures.setTextureCubeDynamic( texture, slot );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() );\n\n\t\t//\n\n\t\tthis.setFramebuffer = function ( value ) {\n\n\t\t\t_framebuffer = value;\n\n\t\t};\n\n\t\tthis.getRenderTarget = function () {\n\n\t\t\treturn _currentRenderTarget;\n\n\t\t};\n\n\t\tthis.setRenderTarget = function ( renderTarget ) {\n\n\t\t\t_currentRenderTarget = renderTarget;\n\n\t\t\tif ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {\n\n\t\t\t\ttextures.setupRenderTarget( renderTarget );\n\n\t\t\t}\n\n\t\t\tvar framebuffer = _framebuffer;\n\t\t\tvar isCube = false;\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\tvar __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;\n\n\t\t\t\tif ( renderTarget.isWebGLRenderTargetCube ) {\n\n\t\t\t\t\tframebuffer = __webglFramebuffer[ renderTarget.activeCubeFace ];\n\t\t\t\t\tisCube = true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tframebuffer = __webglFramebuffer;\n\n\t\t\t\t}\n\n\t\t\t\t_currentViewport.copy( renderTarget.viewport );\n\t\t\t\t_currentScissor.copy( renderTarget.scissor );\n\t\t\t\t_currentScissorTest = renderTarget.scissorTest;\n\n\t\t\t} else {\n\n\t\t\t\t_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );\n\t\t\t\t_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );\n\t\t\t\t_currentScissorTest = _scissorTest;\n\n\t\t\t}\n\n\t\t\tif ( _currentFramebuffer !== framebuffer ) {\n\n\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\t\t\t\t_currentFramebuffer = framebuffer;\n\n\t\t\t}\n\n\t\t\tstate.viewport( _currentViewport );\n\t\t\tstate.scissor( _currentScissor );\n\t\t\tstate.setScissorTest( _currentScissorTest );\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel );\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {\n\n\t\t\tif ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar framebuffer = properties.get( renderTarget ).__webglFramebuffer;\n\n\t\t\tif ( framebuffer ) {\n\n\t\t\t\tvar restore = false;\n\n\t\t\t\tif ( framebuffer !== _currentFramebuffer ) {\n\n\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\n\t\t\t\t\trestore = true;\n\n\t\t\t\t}\n\n\t\t\t\ttry {\n\n\t\t\t\t\tvar texture = renderTarget.texture;\n\t\t\t\t\tvar textureFormat = texture.format;\n\t\t\t\t\tvar textureType = texture.type;\n\n\t\t\t\t\tif ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513)\n\t\t\t\t\t\t! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox\n\t\t\t\t\t\t! ( textureType === HalfFloatType && ( capabilities.isWebGL2 ? extensions.get( 'EXT_color_buffer_float' ) : extensions.get( 'EXT_color_buffer_half_float' ) ) ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {\n\n\t\t\t\t\t\t// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)\n\n\t\t\t\t\t\tif ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {\n\n\t\t\t\t\t\t\t_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t} finally {\n\n\t\t\t\t\tif ( restore ) {\n\n\t\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.copyFramebufferToTexture = function ( position, texture, level ) {\n\n\t\t\tvar width = texture.image.width;\n\t\t\tvar height = texture.image.height;\n\t\t\tvar glFormat = utils.convert( texture.format );\n\n\t\t\tthis.setTexture2D( texture, 0 );\n\n\t\t\t_gl.copyTexImage2D( _gl.TEXTURE_2D, level || 0, glFormat, position.x, position.y, width, height, 0 );\n\n\t\t};\n\n\t\tthis.copyTextureToTexture = function ( position, srcTexture, dstTexture, level ) {\n\n\t\t\tvar width = srcTexture.image.width;\n\t\t\tvar height = srcTexture.image.height;\n\t\t\tvar glFormat = utils.convert( dstTexture.format );\n\t\t\tvar glType = utils.convert( dstTexture.type );\n\n\t\t\tthis.setTexture2D( dstTexture, 0 );\n\n\t\t\tif ( srcTexture.isDataTexture ) {\n\n\t\t\t\t_gl.texSubImage2D( _gl.TEXTURE_2D, level || 0, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );\n\n\t\t\t} else {\n\n\t\t\t\t_gl.texSubImage2D( _gl.TEXTURE_2D, level || 0, position.x, position.y, glFormat, glType, srcTexture.image );\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction FogExp2( color, density ) {\n\n\t\tthis.name = '';\n\n\t\tthis.color = new Color( color );\n\t\tthis.density = ( density !== undefined ) ? density : 0.00025;\n\n\t}\n\n\tFogExp2.prototype.isFogExp2 = true;\n\n\tFogExp2.prototype.clone = function () {\n\n\t\treturn new FogExp2( this.color, this.density );\n\n\t};\n\n\tFogExp2.prototype.toJSON = function ( /* meta */ ) {\n\n\t\treturn {\n\t\t\ttype: 'FogExp2',\n\t\t\tcolor: this.color.getHex(),\n\t\t\tdensity: this.density\n\t\t};\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Fog( color, near, far ) {\n\n\t\tthis.name = '';\n\n\t\tthis.color = new Color( color );\n\n\t\tthis.near = ( near !== undefined ) ? near : 1;\n\t\tthis.far = ( far !== undefined ) ? far : 1000;\n\n\t}\n\n\tFog.prototype.isFog = true;\n\n\tFog.prototype.clone = function () {\n\n\t\treturn new Fog( this.color, this.near, this.far );\n\n\t};\n\n\tFog.prototype.toJSON = function ( /* meta */ ) {\n\n\t\treturn {\n\t\t\ttype: 'Fog',\n\t\t\tcolor: this.color.getHex(),\n\t\t\tnear: this.near,\n\t\t\tfar: this.far\n\t\t};\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Scene() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Scene';\n\n\t\tthis.background = null;\n\t\tthis.fog = null;\n\t\tthis.overrideMaterial = null;\n\n\t\tthis.autoUpdate = true; // checked by the renderer\n\n\t}\n\n\tScene.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Scene,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source, recursive );\n\n\t\t\tif ( source.background !== null ) this.background = source.background.clone();\n\t\t\tif ( source.fog !== null ) this.fog = source.fog.clone();\n\t\t\tif ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();\n\n\t\t\tthis.autoUpdate = source.autoUpdate;\n\t\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tif ( this.background !== null ) data.object.background = this.background.toJSON( meta );\n\t\t\tif ( this.fog !== null ) data.object.fog = this.fog.toJSON();\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InterleavedBuffer( array, stride ) {\n\n\t\tthis.array = array;\n\t\tthis.stride = stride;\n\t\tthis.count = array !== undefined ? array.length / stride : 0;\n\n\t\tthis.dynamic = false;\n\t\tthis.updateRange = { offset: 0, count: - 1 };\n\n\t\tthis.version = 0;\n\n\t}\n\n\tObject.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( InterleavedBuffer.prototype, {\n\n\t\tisInterleavedBuffer: true,\n\n\t\tonUploadCallback: function () {},\n\n\t\tsetArray: function ( array ) {\n\n\t\t\tif ( Array.isArray( array ) ) {\n\n\t\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t\t}\n\n\t\t\tthis.count = array !== undefined ? array.length / this.stride : 0;\n\t\t\tthis.array = array;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetDynamic: function ( value ) {\n\n\t\t\tthis.dynamic = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.array = new source.array.constructor( source.array );\n\t\t\tthis.count = source.count;\n\t\t\tthis.stride = source.stride;\n\t\t\tthis.dynamic = source.dynamic;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyAt: function ( index1, attribute, index2 ) {\n\n\t\t\tindex1 *= this.stride;\n\t\t\tindex2 *= attribute.stride;\n\n\t\t\tfor ( var i = 0, l = this.stride; i < l; i ++ ) {\n\n\t\t\t\tthis.array[ index1 + i ] = attribute.array[ index2 + i ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tset: function ( value, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.array.set( value, offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tonUpload: function ( callback ) {\n\n\t\t\tthis.onUploadCallback = callback;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {\n\n\t\tthis.data = interleavedBuffer;\n\t\tthis.itemSize = itemSize;\n\t\tthis.offset = offset;\n\n\t\tthis.normalized = normalized === true;\n\n\t}\n\n\tObject.defineProperties( InterleavedBufferAttribute.prototype, {\n\n\t\tcount: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.data.count;\n\n\t\t\t}\n\n\t\t},\n\n\t\tarray: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.data.array;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( InterleavedBufferAttribute.prototype, {\n\n\t\tisInterleavedBufferAttribute: true,\n\n\t\tsetX: function ( index, x ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset ] = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( index, y ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( index, z ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetW: function ( index, w ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetX: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset ];\n\n\t\t},\n\n\t\tgetY: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 1 ];\n\n\t\t},\n\n\t\tgetZ: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 2 ];\n\n\t\t},\n\n\t\tgetW: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 3 ];\n\n\t\t},\n\n\t\tsetXY: function ( index, x, y ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZ: function ( index, x, y, z ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\t\t\tthis.data.array[ index + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZW: function ( index, x, y, z, w ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\t\t\tthis.data.array[ index + 2 ] = z;\n\t\t\tthis.data.array[ index + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t *\tuvOffset: new THREE.Vector2(),\n\t *\tuvScale: new THREE.Vector2()\n\t * }\n\t */\n\n\tfunction SpriteMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'SpriteMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\t\tthis.map = null;\n\n\t\tthis.rotation = 0;\n\n\t\tthis.lights = false;\n\t\tthis.transparent = true;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tSpriteMaterial.prototype = Object.create( Material.prototype );\n\tSpriteMaterial.prototype.constructor = SpriteMaterial;\n\tSpriteMaterial.prototype.isSpriteMaterial = true;\n\n\tSpriteMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\t\tthis.map = source.map;\n\n\t\tthis.rotation = source.rotation;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tvar geometry;\n\n\tfunction Sprite( material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Sprite';\n\n\t\tif ( geometry === undefined ) {\n\n\t\t\tgeometry = new BufferGeometry();\n\n\t\t\tvar float32Array = new Float32Array( [\n\t\t\t\t- 0.5, - 0.5, 0, 0, 0,\n\t\t\t\t0.5, - 0.5, 0, 1, 0,\n\t\t\t\t0.5, 0.5, 0, 1, 1,\n\t\t\t\t- 0.5, 0.5, 0, 0, 1\n\t\t\t] );\n\n\t\t\tvar interleavedBuffer = new InterleavedBuffer( float32Array, 5 );\n\n\t\t\tgeometry.setIndex( [ 0, 1, 2,\t0, 2, 3 ] );\n\t\t\tgeometry.addAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) );\n\t\t\tgeometry.addAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) );\n\n\t\t}\n\n\t\tthis.geometry = geometry;\n\t\tthis.material = ( material !== undefined ) ? material : new SpriteMaterial();\n\n\t\tthis.center = new Vector2( 0.5, 0.5 );\n\n\t}\n\n\tSprite.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Sprite,\n\n\t\tisSprite: true,\n\n\t\traycast: ( function () {\n\n\t\t\tvar intersectPoint = new Vector3();\n\t\t\tvar worldScale = new Vector3();\n\t\t\tvar mvPosition = new Vector3();\n\n\t\t\tvar alignedPosition = new Vector2();\n\t\t\tvar rotatedPosition = new Vector2();\n\t\t\tvar viewWorldMatrix = new Matrix4();\n\n\t\t\tvar vA = new Vector3();\n\t\t\tvar vB = new Vector3();\n\t\t\tvar vC = new Vector3();\n\n\t\t\tfunction transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) {\n\n\t\t\t\t// compute position in camera space\n\t\t\t\talignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale );\n\n\t\t\t\t// to check if rotation is not zero\n\t\t\t\tif ( sin !== undefined ) {\n\n\t\t\t\t\trotatedPosition.x = ( cos * alignedPosition.x ) - ( sin * alignedPosition.y );\n\t\t\t\t\trotatedPosition.y = ( sin * alignedPosition.x ) + ( cos * alignedPosition.y );\n\n\t\t\t\t} else {\n\n\t\t\t\t\trotatedPosition.copy( alignedPosition );\n\n\t\t\t\t}\n\n\n\t\t\t\tvertexPosition.copy( mvPosition );\n\t\t\t\tvertexPosition.x += rotatedPosition.x;\n\t\t\t\tvertexPosition.y += rotatedPosition.y;\n\n\t\t\t\t// transform to world space\n\t\t\t\tvertexPosition.applyMatrix4( viewWorldMatrix );\n\n\t\t\t}\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tworldScale.setFromMatrixScale( this.matrixWorld );\n\t\t\t\tviewWorldMatrix.getInverse( this.modelViewMatrix ).premultiply( this.matrixWorld );\n\t\t\t\tmvPosition.setFromMatrixPosition( this.modelViewMatrix );\n\n\t\t\t\tvar rotation = this.material.rotation;\n\t\t\t\tvar sin, cos;\n\t\t\t\tif ( rotation !== 0 ) {\n\n\t\t\t\t\tcos = Math.cos( rotation );\n\t\t\t\t\tsin = Math.sin( rotation );\n\n\t\t\t\t}\n\n\t\t\t\tvar center = this.center;\n\n\t\t\t\ttransformVertex( vA.set( - 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\t\t\t\ttransformVertex( vB.set( 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\t\t\t\ttransformVertex( vC.set( 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\n\t\t\t\t// check first triangle\n\t\t\t\tvar intersect = raycaster.ray.intersectTriangle( vA, vB, vC, false, intersectPoint );\n\n\t\t\t\tif ( intersect === null ) {\n\n\t\t\t\t\t// check second triangle\n\t\t\t\t\ttransformVertex( vB.set( - 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\t\t\t\t\tintersect = raycaster.ray.intersectTriangle( vA, vC, vB, false, intersectPoint );\n\t\t\t\t\tif ( intersect === null ) {\n\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectPoint );\n\n\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return;\n\n\t\t\t\tintersects.push( {\n\n\t\t\t\t\tdistance: distance,\n\t\t\t\t\tpoint: intersectPoint.clone(),\n\t\t\t\t\tface: null,\n\t\t\t\t\tobject: this\n\n\t\t\t\t} );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.material ).copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tif ( source.center !== undefined ) this.center.copy( source.center );\n\n\t\t\treturn this;\n\n\t\t}\n\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LOD() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'LOD';\n\n\t\tObject.defineProperties( this, {\n\t\t\tlevels: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: []\n\t\t\t}\n\t\t} );\n\n\t}\n\n\tLOD.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: LOD,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source, false );\n\n\t\t\tvar levels = source.levels;\n\n\t\t\tfor ( var i = 0, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tvar level = levels[ i ];\n\n\t\t\t\tthis.addLevel( level.object.clone(), level.distance );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddLevel: function ( object, distance ) {\n\n\t\t\tif ( distance === undefined ) distance = 0;\n\n\t\t\tdistance = Math.abs( distance );\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var l = 0; l < levels.length; l ++ ) {\n\n\t\t\t\tif ( distance < levels[ l ].distance ) {\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlevels.splice( l, 0, { distance: distance, object: object } );\n\n\t\t\tthis.add( object );\n\n\t\t},\n\n\t\tgetObjectForDistance: function ( distance ) {\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var i = 1, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tif ( distance < levels[ i ].distance ) {\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn levels[ i - 1 ].object;\n\n\t\t},\n\n\t\traycast: ( function () {\n\n\t\t\tvar matrixPosition = new Vector3();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tmatrixPosition.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( matrixPosition );\n\n\t\t\t\tthis.getObjectForDistance( distance ).raycast( raycaster, intersects );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tupdate: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function update( camera ) {\n\n\t\t\t\tvar levels = this.levels;\n\n\t\t\t\tif ( levels.length > 1 ) {\n\n\t\t\t\t\tv1.setFromMatrixPosition( camera.matrixWorld );\n\t\t\t\t\tv2.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\t\tvar distance = v1.distanceTo( v2 );\n\n\t\t\t\t\tlevels[ 0 ].object.visible = true;\n\n\t\t\t\t\tfor ( var i = 1, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tif ( distance >= levels[ i ].distance ) {\n\n\t\t\t\t\t\t\tlevels[ i - 1 ].object.visible = false;\n\t\t\t\t\t\t\tlevels[ i ].object.visible = true;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( ; i < l; i ++ ) {\n\n\t\t\t\t\t\tlevels[ i ].object.visible = false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.levels = [];\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var i = 0, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tvar level = levels[ i ];\n\n\t\t\t\tdata.object.levels.push( {\n\t\t\t\t\tobject: level.object.uuid,\n\t\t\t\t\tdistance: level.distance\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author michael guerrero / http://realitymeltdown.com\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction Skeleton( bones, boneInverses ) {\n\n\t\t// copy the bone array\n\n\t\tbones = bones || [];\n\n\t\tthis.bones = bones.slice( 0 );\n\t\tthis.boneMatrices = new Float32Array( this.bones.length * 16 );\n\n\t\t// use the supplied bone inverses or calculate the inverses\n\n\t\tif ( boneInverses === undefined ) {\n\n\t\t\tthis.calculateInverses();\n\n\t\t} else {\n\n\t\t\tif ( this.bones.length === boneInverses.length ) {\n\n\t\t\t\tthis.boneInverses = boneInverses.slice( 0 );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.Skeleton boneInverses is the wrong length.' );\n\n\t\t\t\tthis.boneInverses = [];\n\n\t\t\t\tfor ( var i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\t\tthis.boneInverses.push( new Matrix4() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tObject.assign( Skeleton.prototype, {\n\n\t\tcalculateInverses: function () {\n\n\t\t\tthis.boneInverses = [];\n\n\t\t\tfor ( var i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tvar inverse = new Matrix4();\n\n\t\t\t\tif ( this.bones[ i ] ) {\n\n\t\t\t\t\tinverse.getInverse( this.bones[ i ].matrixWorld );\n\n\t\t\t\t}\n\n\t\t\t\tthis.boneInverses.push( inverse );\n\n\t\t\t}\n\n\t\t},\n\n\t\tpose: function () {\n\n\t\t\tvar bone, i, il;\n\n\t\t\t// recover the bind-time world matrices\n\n\t\t\tfor ( i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tbone = this.bones[ i ];\n\n\t\t\t\tif ( bone ) {\n\n\t\t\t\t\tbone.matrixWorld.getInverse( this.boneInverses[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// compute the local matrices, positions, rotations and scales\n\n\t\t\tfor ( i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tbone = this.bones[ i ];\n\n\t\t\t\tif ( bone ) {\n\n\t\t\t\t\tif ( bone.parent && bone.parent.isBone ) {\n\n\t\t\t\t\t\tbone.matrix.getInverse( bone.parent.matrixWorld );\n\t\t\t\t\t\tbone.matrix.multiply( bone.matrixWorld );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tbone.matrix.copy( bone.matrixWorld );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbone.matrix.decompose( bone.position, bone.quaternion, bone.scale );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdate: ( function () {\n\n\t\t\tvar offsetMatrix = new Matrix4();\n\t\t\tvar identityMatrix = new Matrix4();\n\n\t\t\treturn function update() {\n\n\t\t\t\tvar bones = this.bones;\n\t\t\t\tvar boneInverses = this.boneInverses;\n\t\t\t\tvar boneMatrices = this.boneMatrices;\n\t\t\t\tvar boneTexture = this.boneTexture;\n\n\t\t\t\t// flatten bone matrices to array\n\n\t\t\t\tfor ( var i = 0, il = bones.length; i < il; i ++ ) {\n\n\t\t\t\t\t// compute the offset between the current and the original transform\n\n\t\t\t\t\tvar matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;\n\n\t\t\t\t\toffsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );\n\t\t\t\t\toffsetMatrix.toArray( boneMatrices, i * 16 );\n\n\t\t\t\t}\n\n\t\t\t\tif ( boneTexture !== undefined ) {\n\n\t\t\t\t\tboneTexture.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tclone: function () {\n\n\t\t\treturn new Skeleton( this.bones, this.boneInverses );\n\n\t\t},\n\n\t\tgetBoneByName: function ( name ) {\n\n\t\t\tfor ( var i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tvar bone = this.bones[ i ];\n\n\t\t\t\tif ( bone.name === name ) {\n\n\t\t\t\t\treturn bone;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn undefined;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction Bone() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Bone';\n\n\t}\n\n\tBone.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Bone,\n\n\t\tisBone: true\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction SkinnedMesh( geometry, material ) {\n\n\t\tMesh.call( this, geometry, material );\n\n\t\tthis.type = 'SkinnedMesh';\n\n\t\tthis.bindMode = 'attached';\n\t\tthis.bindMatrix = new Matrix4();\n\t\tthis.bindMatrixInverse = new Matrix4();\n\n\t\tvar bones = this.initBones();\n\t\tvar skeleton = new Skeleton( bones );\n\n\t\tthis.bind( skeleton, this.matrixWorld );\n\n\t\tthis.normalizeSkinWeights();\n\n\t}\n\n\tSkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {\n\n\t\tconstructor: SkinnedMesh,\n\n\t\tisSkinnedMesh: true,\n\n\t\tinitBones: function () {\n\n\t\t\tvar bones = [], bone, gbone;\n\t\t\tvar i, il;\n\n\t\t\tif ( this.geometry && this.geometry.bones !== undefined ) {\n\n\t\t\t\t// first, create array of 'Bone' objects from geometry data\n\n\t\t\t\tfor ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {\n\n\t\t\t\t\tgbone = this.geometry.bones[ i ];\n\n\t\t\t\t\t// create new 'Bone' object\n\n\t\t\t\t\tbone = new Bone();\n\t\t\t\t\tbones.push( bone );\n\n\t\t\t\t\t// apply values\n\n\t\t\t\t\tbone.name = gbone.name;\n\t\t\t\t\tbone.position.fromArray( gbone.pos );\n\t\t\t\t\tbone.quaternion.fromArray( gbone.rotq );\n\t\t\t\t\tif ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );\n\n\t\t\t\t}\n\n\t\t\t\t// second, create bone hierarchy\n\n\t\t\t\tfor ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {\n\n\t\t\t\t\tgbone = this.geometry.bones[ i ];\n\n\t\t\t\t\tif ( ( gbone.parent !== - 1 ) && ( gbone.parent !== null ) && ( bones[ gbone.parent ] !== undefined ) ) {\n\n\t\t\t\t\t\t// subsequent bones in the hierarchy\n\n\t\t\t\t\t\tbones[ gbone.parent ].add( bones[ i ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// topmost bone, immediate child of the skinned mesh\n\n\t\t\t\t\t\tthis.add( bones[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// now the bones are part of the scene graph and children of the skinned mesh.\n\t\t\t// let's update the corresponding matrices\n\n\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\treturn bones;\n\n\t\t},\n\n\t\tbind: function ( skeleton, bindMatrix ) {\n\n\t\t\tthis.skeleton = skeleton;\n\n\t\t\tif ( bindMatrix === undefined ) {\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.skeleton.calculateInverses();\n\n\t\t\t\tbindMatrix = this.matrixWorld;\n\n\t\t\t}\n\n\t\t\tthis.bindMatrix.copy( bindMatrix );\n\t\t\tthis.bindMatrixInverse.getInverse( bindMatrix );\n\n\t\t},\n\n\t\tpose: function () {\n\n\t\t\tthis.skeleton.pose();\n\n\t\t},\n\n\t\tnormalizeSkinWeights: function () {\n\n\t\t\tvar scale, i;\n\n\t\t\tif ( this.geometry && this.geometry.isGeometry ) {\n\n\t\t\t\tfor ( i = 0; i < this.geometry.skinWeights.length; i ++ ) {\n\n\t\t\t\t\tvar sw = this.geometry.skinWeights[ i ];\n\n\t\t\t\t\tscale = 1.0 / sw.manhattanLength();\n\n\t\t\t\t\tif ( scale !== Infinity ) {\n\n\t\t\t\t\t\tsw.multiplyScalar( scale );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tsw.set( 1, 0, 0, 0 ); // do something reasonable\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else if ( this.geometry && this.geometry.isBufferGeometry ) {\n\n\t\t\t\tvar vec = new Vector4();\n\n\t\t\t\tvar skinWeight = this.geometry.attributes.skinWeight;\n\n\t\t\t\tfor ( i = 0; i < skinWeight.count; i ++ ) {\n\n\t\t\t\t\tvec.x = skinWeight.getX( i );\n\t\t\t\t\tvec.y = skinWeight.getY( i );\n\t\t\t\t\tvec.z = skinWeight.getZ( i );\n\t\t\t\t\tvec.w = skinWeight.getW( i );\n\n\t\t\t\t\tscale = 1.0 / vec.manhattanLength();\n\n\t\t\t\t\tif ( scale !== Infinity ) {\n\n\t\t\t\t\t\tvec.multiplyScalar( scale );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tvec.set( 1, 0, 0, 0 ); // do something reasonable\n\n\t\t\t\t\t}\n\n\t\t\t\t\tskinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdateMatrixWorld: function ( force ) {\n\n\t\t\tMesh.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\tif ( this.bindMode === 'attached' ) {\n\n\t\t\t\tthis.bindMatrixInverse.getInverse( this.matrixWorld );\n\n\t\t\t} else if ( this.bindMode === 'detached' ) {\n\n\t\t\t\tthis.bindMatrixInverse.getInverse( this.bindMatrix );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * linewidth: ,\n\t * linecap: \"round\",\n\t * linejoin: \"round\"\n\t * }\n\t */\n\n\tfunction LineBasicMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'LineBasicMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\n\t\tthis.linewidth = 1;\n\t\tthis.linecap = 'round';\n\t\tthis.linejoin = 'round';\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tLineBasicMaterial.prototype = Object.create( Material.prototype );\n\tLineBasicMaterial.prototype.constructor = LineBasicMaterial;\n\n\tLineBasicMaterial.prototype.isLineBasicMaterial = true;\n\n\tLineBasicMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.linewidth = source.linewidth;\n\t\tthis.linecap = source.linecap;\n\t\tthis.linejoin = source.linejoin;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Line( geometry, material, mode ) {\n\n\t\tif ( mode === 1 ) {\n\n\t\t\tconsole.error( 'THREE.Line: parameter THREE.LinePieces no longer supported. Use THREE.LineSegments instead.' );\n\n\t\t}\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Line';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );\n\n\t}\n\n\tLine.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Line,\n\n\t\tisLine: true,\n\n\t\tcomputeLineDistances: ( function () {\n\n\t\t\tvar start = new Vector3();\n\t\t\tvar end = new Vector3();\n\n\t\t\treturn function computeLineDistances() {\n\n\t\t\t\tvar geometry = this.geometry;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\t// we assume non-indexed geometry\n\n\t\t\t\t\tif ( geometry.index === null ) {\n\n\t\t\t\t\t\tvar positionAttribute = geometry.attributes.position;\n\t\t\t\t\t\tvar lineDistances = [ 0 ];\n\n\t\t\t\t\t\tfor ( var i = 1, l = positionAttribute.count; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tstart.fromBufferAttribute( positionAttribute, i - 1 );\n\t\t\t\t\t\t\tend.fromBufferAttribute( positionAttribute, i );\n\n\t\t\t\t\t\t\tlineDistances[ i ] = lineDistances[ i - 1 ];\n\t\t\t\t\t\t\tlineDistances[ i ] += start.distanceTo( end );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar lineDistances = geometry.lineDistances;\n\n\t\t\t\t\tlineDistances[ 0 ] = 0;\n\n\t\t\t\t\tfor ( var i = 1, l = vertices.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tlineDistances[ i ] = lineDistances[ i - 1 ];\n\t\t\t\t\t\tlineDistances[ i ] += vertices[ i - 1 ].distanceTo( vertices[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar precision = raycaster.linePrecision;\n\t\t\t\tvar precisionSq = precision * precision;\n\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\tvar vStart = new Vector3();\n\t\t\t\tvar vEnd = new Vector3();\n\t\t\t\tvar interSegment = new Vector3();\n\t\t\t\tvar interRay = new Vector3();\n\t\t\t\tvar step = ( this && this.isLineSegments ) ? 2 : 1;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar attributes = geometry.attributes;\n\t\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\t\tfor ( var i = 0, l = indices.length - 1; i < l; i += step ) {\n\n\t\t\t\t\t\t\tvar a = indices[ i ];\n\t\t\t\t\t\t\tvar b = indices[ i + 1 ];\n\n\t\t\t\t\t\t\tvStart.fromArray( positions, a * 3 );\n\t\t\t\t\t\t\tvEnd.fromArray( positions, b * 3 );\n\n\t\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );\n\n\t\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {\n\n\t\t\t\t\t\t\tvStart.fromArray( positions, 3 * i );\n\t\t\t\t\t\t\tvEnd.fromArray( positions, 3 * i + 3 );\n\n\t\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );\n\n\t\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar nbVertices = vertices.length;\n\n\t\t\t\t\tfor ( var i = 0; i < nbVertices - 1; i += step ) {\n\n\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );\n\n\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LineSegments( geometry, material ) {\n\n\t\tLine.call( this, geometry, material );\n\n\t\tthis.type = 'LineSegments';\n\n\t}\n\n\tLineSegments.prototype = Object.assign( Object.create( Line.prototype ), {\n\n\t\tconstructor: LineSegments,\n\n\t\tisLineSegments: true,\n\n\t\tcomputeLineDistances: ( function () {\n\n\t\t\tvar start = new Vector3();\n\t\t\tvar end = new Vector3();\n\n\t\t\treturn function computeLineDistances() {\n\n\t\t\t\tvar geometry = this.geometry;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\t// we assume non-indexed geometry\n\n\t\t\t\t\tif ( geometry.index === null ) {\n\n\t\t\t\t\t\tvar positionAttribute = geometry.attributes.position;\n\t\t\t\t\t\tvar lineDistances = [];\n\n\t\t\t\t\t\tfor ( var i = 0, l = positionAttribute.count; i < l; i += 2 ) {\n\n\t\t\t\t\t\t\tstart.fromBufferAttribute( positionAttribute, i );\n\t\t\t\t\t\t\tend.fromBufferAttribute( positionAttribute, i + 1 );\n\n\t\t\t\t\t\t\tlineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];\n\t\t\t\t\t\t\tlineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar lineDistances = geometry.lineDistances;\n\n\t\t\t\t\tfor ( var i = 0, l = vertices.length; i < l; i += 2 ) {\n\n\t\t\t\t\t\tstart.copy( vertices[ i ] );\n\t\t\t\t\t\tend.copy( vertices[ i + 1 ] );\n\n\t\t\t\t\t\tlineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];\n\t\t\t\t\t\tlineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}() )\n\n\t} );\n\n\t/**\n\t * @author mgreter / http://github.com/mgreter\n\t */\n\n\tfunction LineLoop( geometry, material ) {\n\n\t\tLine.call( this, geometry, material );\n\n\t\tthis.type = 'LineLoop';\n\n\t}\n\n\tLineLoop.prototype = Object.assign( Object.create( Line.prototype ), {\n\n\t\tconstructor: LineLoop,\n\n\t\tisLineLoop: true,\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t * size: ,\n\t * sizeAttenuation: \n\t *\n\t * morphTargets: \n\t * }\n\t */\n\n\tfunction PointsMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'PointsMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\n\t\tthis.map = null;\n\n\t\tthis.size = 1;\n\t\tthis.sizeAttenuation = true;\n\n\t\tthis.morphTargets = false;\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tPointsMaterial.prototype = Object.create( Material.prototype );\n\tPointsMaterial.prototype.constructor = PointsMaterial;\n\n\tPointsMaterial.prototype.isPointsMaterial = true;\n\n\tPointsMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.size = source.size;\n\t\tthis.sizeAttenuation = source.sizeAttenuation;\n\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Points( geometry, material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Points';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );\n\n\t}\n\n\tPoints.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Points,\n\n\t\tisPoints: true,\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar object = this;\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\t\t\t\tvar threshold = raycaster.params.Points.threshold;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\t\t\t\tsphere.radius += threshold;\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\tvar localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );\n\t\t\t\tvar localThresholdSq = localThreshold * localThreshold;\n\t\t\t\tvar position = new Vector3();\n\t\t\t\tvar intersectPoint = new Vector3();\n\n\t\t\t\tfunction testPoint( point, index ) {\n\n\t\t\t\t\tvar rayPointDistanceSq = ray.distanceSqToPoint( point );\n\n\t\t\t\t\tif ( rayPointDistanceSq < localThresholdSq ) {\n\n\t\t\t\t\t\tray.closestPointToPoint( point, intersectPoint );\n\t\t\t\t\t\tintersectPoint.applyMatrix4( matrixWorld );\n\n\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectPoint );\n\n\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return;\n\n\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\tdistanceToRay: Math.sqrt( rayPointDistanceSq ),\n\t\t\t\t\t\t\tpoint: intersectPoint.clone(),\n\t\t\t\t\t\t\tindex: index,\n\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\tobject: object\n\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar attributes = geometry.attributes;\n\t\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\t\tfor ( var i = 0, il = indices.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\tvar a = indices[ i ];\n\n\t\t\t\t\t\t\tposition.fromArray( positions, a * 3 );\n\n\t\t\t\t\t\t\ttestPoint( position, a );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, l = positions.length / 3; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tposition.fromArray( positions, i * 3 );\n\n\t\t\t\t\t\t\ttestPoint( position, i );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\n\t\t\t\t\tfor ( var i = 0, l = vertices.length; i < l; i ++ ) {\n\n\t\t\t\t\t\ttestPoint( vertices[ i ], i );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {\n\n\t\tTexture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.generateMipmaps = false;\n\n\t}\n\n\tVideoTexture.prototype = Object.assign( Object.create( Texture.prototype ), {\n\n\t\tconstructor: VideoTexture,\n\n\t\tisVideoTexture: true,\n\n\t\tupdate: function () {\n\n\t\t\tvar video = this.image;\n\n\t\t\tif ( video.readyState >= video.HAVE_CURRENT_DATA ) {\n\n\t\t\t\tthis.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.image = { width: width, height: height };\n\t\tthis.mipmaps = mipmaps;\n\n\t\t// no flipping for cube textures\n\t\t// (also flipping doesn't work for compressed textures )\n\n\t\tthis.flipY = false;\n\n\t\t// can't generate mipmaps for compressed textures\n\t\t// mips must be embedded in DDS files\n\n\t\tthis.generateMipmaps = false;\n\n\t}\n\n\tCompressedTexture.prototype = Object.create( Texture.prototype );\n\tCompressedTexture.prototype.constructor = CompressedTexture;\n\n\tCompressedTexture.prototype.isCompressedTexture = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {\n\n\t\tTexture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.needsUpdate = true;\n\n\t}\n\n\tCanvasTexture.prototype = Object.create( Texture.prototype );\n\tCanvasTexture.prototype.constructor = CanvasTexture;\n\tCanvasTexture.prototype.isCanvasTexture = true;\n\n\t/**\n\t * @author Matt DesLauriers / @mattdesl\n\t * @author atix / arthursilber.de\n\t */\n\n\tfunction DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {\n\n\t\tformat = format !== undefined ? format : DepthFormat;\n\n\t\tif ( format !== DepthFormat && format !== DepthStencilFormat ) {\n\n\t\t\tthrow new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );\n\n\t\t}\n\n\t\tif ( type === undefined && format === DepthFormat ) type = UnsignedShortType;\n\t\tif ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.image = { width: width, height: height };\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : NearestFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : NearestFilter;\n\n\t\tthis.flipY = false;\n\t\tthis.generateMipmaps\t= false;\n\n\t}\n\n\tDepthTexture.prototype = Object.create( Texture.prototype );\n\tDepthTexture.prototype.constructor = DepthTexture;\n\tDepthTexture.prototype.isDepthTexture = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction WireframeGeometry( geometry ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'WireframeGeometry';\n\n\t\t// buffer\n\n\t\tvar vertices = [];\n\n\t\t// helper variables\n\n\t\tvar i, j, l, o, ol;\n\t\tvar edge = [ 0, 0 ], edges = {}, e, edge1, edge2;\n\t\tvar key, keys = [ 'a', 'b', 'c' ];\n\t\tvar vertex;\n\n\t\t// different logic for Geometry and BufferGeometry\n\n\t\tif ( geometry && geometry.isGeometry ) {\n\n\t\t\t// create a data structure that contains all edges without duplicates\n\n\t\t\tvar faces = geometry.faces;\n\n\t\t\tfor ( i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\tedge1 = face[ keys[ j ] ];\n\t\t\t\t\tedge2 = face[ keys[ ( j + 1 ) % 3 ] ];\n\t\t\t\t\tedge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates\n\t\t\t\t\tedge[ 1 ] = Math.max( edge1, edge2 );\n\n\t\t\t\t\tkey = edge[ 0 ] + ',' + edge[ 1 ];\n\n\t\t\t\t\tif ( edges[ key ] === undefined ) {\n\n\t\t\t\t\t\tedges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// generate vertices\n\n\t\t\tfor ( key in edges ) {\n\n\t\t\t\te = edges[ key ];\n\n\t\t\t\tvertex = geometry.vertices[ e.index1 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\tvertex = geometry.vertices[ e.index2 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t} else if ( geometry && geometry.isBufferGeometry ) {\n\n\t\t\tvar position, indices, groups;\n\t\t\tvar group, start, count;\n\t\t\tvar index1, index2;\n\n\t\t\tvertex = new Vector3();\n\n\t\t\tif ( geometry.index !== null ) {\n\n\t\t\t\t// indexed BufferGeometry\n\n\t\t\t\tposition = geometry.attributes.position;\n\t\t\t\tindices = geometry.index;\n\t\t\t\tgroups = geometry.groups;\n\n\t\t\t\tif ( groups.length === 0 ) {\n\n\t\t\t\t\tgroups = [ { start: 0, count: indices.count, materialIndex: 0 } ];\n\n\t\t\t\t}\n\n\t\t\t\t// create a data structure that contains all eges without duplicates\n\n\t\t\t\tfor ( o = 0, ol = groups.length; o < ol; ++ o ) {\n\n\t\t\t\t\tgroup = groups[ o ];\n\n\t\t\t\t\tstart = group.start;\n\t\t\t\t\tcount = group.count;\n\n\t\t\t\t\tfor ( i = start, l = ( start + count ); i < l; i += 3 ) {\n\n\t\t\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t\tedge1 = indices.getX( i + j );\n\t\t\t\t\t\t\tedge2 = indices.getX( i + ( j + 1 ) % 3 );\n\t\t\t\t\t\t\tedge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates\n\t\t\t\t\t\t\tedge[ 1 ] = Math.max( edge1, edge2 );\n\n\t\t\t\t\t\t\tkey = edge[ 0 ] + ',' + edge[ 1 ];\n\n\t\t\t\t\t\t\tif ( edges[ key ] === undefined ) {\n\n\t\t\t\t\t\t\t\tedges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// generate vertices\n\n\t\t\t\tfor ( key in edges ) {\n\n\t\t\t\t\te = edges[ key ];\n\n\t\t\t\t\tvertex.fromBufferAttribute( position, e.index1 );\n\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\tvertex.fromBufferAttribute( position, e.index2 );\n\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// non-indexed BufferGeometry\n\n\t\t\t\tposition = geometry.attributes.position;\n\n\t\t\t\tfor ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {\n\n\t\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t// three edges per triangle, an edge is represented as (index1, index2)\n\t\t\t\t\t\t// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)\n\n\t\t\t\t\t\tindex1 = 3 * i + j;\n\t\t\t\t\t\tvertex.fromBufferAttribute( position, index1 );\n\t\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\t\tindex2 = 3 * i + ( ( j + 1 ) % 3 );\n\t\t\t\t\t\tvertex.fromBufferAttribute( position, index2 );\n\t\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\n\t}\n\n\tWireframeGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tWireframeGeometry.prototype.constructor = WireframeGeometry;\n\n\t/**\n\t * @author zz85 / https://github.com/zz85\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * Parametric Surfaces Geometry\n\t * based on the brilliant article by @prideout http://prideout.net/blog/?p=44\n\t */\n\n\t// ParametricGeometry\n\n\tfunction ParametricGeometry( func, slices, stacks ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ParametricGeometry';\n\n\t\tthis.parameters = {\n\t\t\tfunc: func,\n\t\t\tslices: slices,\n\t\t\tstacks: stacks\n\t\t};\n\n\t\tthis.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tParametricGeometry.prototype = Object.create( Geometry.prototype );\n\tParametricGeometry.prototype.constructor = ParametricGeometry;\n\n\t// ParametricBufferGeometry\n\n\tfunction ParametricBufferGeometry( func, slices, stacks ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'ParametricBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tfunc: func,\n\t\t\tslices: slices,\n\t\t\tstacks: stacks\n\t\t};\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\tvar EPS = 0.00001;\n\n\t\tvar normal = new Vector3();\n\n\t\tvar p0 = new Vector3(), p1 = new Vector3();\n\t\tvar pu = new Vector3(), pv = new Vector3();\n\n\t\tvar i, j;\n\n\t\tif ( func.length < 3 ) {\n\n\t\t\tconsole.error( 'THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.' );\n\n\t\t}\n\n\t\t// generate vertices, normals and uvs\n\n\t\tvar sliceCount = slices + 1;\n\n\t\tfor ( i = 0; i <= stacks; i ++ ) {\n\n\t\t\tvar v = i / stacks;\n\n\t\t\tfor ( j = 0; j <= slices; j ++ ) {\n\n\t\t\t\tvar u = j / slices;\n\n\t\t\t\t// vertex\n\n\t\t\t\tfunc( u, v, p0 );\n\t\t\t\tvertices.push( p0.x, p0.y, p0.z );\n\n\t\t\t\t// normal\n\n\t\t\t\t// approximate tangent vectors via finite differences\n\n\t\t\t\tif ( u - EPS >= 0 ) {\n\n\t\t\t\t\tfunc( u - EPS, v, p1 );\n\t\t\t\t\tpu.subVectors( p0, p1 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfunc( u + EPS, v, p1 );\n\t\t\t\t\tpu.subVectors( p1, p0 );\n\n\t\t\t\t}\n\n\t\t\t\tif ( v - EPS >= 0 ) {\n\n\t\t\t\t\tfunc( u, v - EPS, p1 );\n\t\t\t\t\tpv.subVectors( p0, p1 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfunc( u, v + EPS, p1 );\n\t\t\t\t\tpv.subVectors( p1, p0 );\n\n\t\t\t\t}\n\n\t\t\t\t// cross product of tangent vectors returns surface normal\n\n\t\t\t\tnormal.crossVectors( pu, pv ).normalize();\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( u, v );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( i = 0; i < stacks; i ++ ) {\n\n\t\t\tfor ( j = 0; j < slices; j ++ ) {\n\n\t\t\t\tvar a = i * sliceCount + j;\n\t\t\t\tvar b = i * sliceCount + j + 1;\n\t\t\t\tvar c = ( i + 1 ) * sliceCount + j + 1;\n\t\t\t\tvar d = ( i + 1 ) * sliceCount + j;\n\n\t\t\t\t// faces one and two\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;\n\n\t/**\n\t * @author clockworkgeek / https://github.com/clockworkgeek\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// PolyhedronGeometry\n\n\tfunction PolyhedronGeometry( vertices, indices, radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'PolyhedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tvertices: vertices,\n\t\t\tindices: indices,\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tPolyhedronGeometry.prototype = Object.create( Geometry.prototype );\n\tPolyhedronGeometry.prototype.constructor = PolyhedronGeometry;\n\n\t// PolyhedronBufferGeometry\n\n\tfunction PolyhedronBufferGeometry( vertices, indices, radius, detail ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'PolyhedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tvertices: vertices,\n\t\t\tindices: indices,\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tradius = radius || 1;\n\t\tdetail = detail || 0;\n\n\t\t// default buffer data\n\n\t\tvar vertexBuffer = [];\n\t\tvar uvBuffer = [];\n\n\t\t// the subdivision creates the vertex buffer data\n\n\t\tsubdivide( detail );\n\n\t\t// all vertices should lie on a conceptual sphere with a given radius\n\n\t\tappplyRadius( radius );\n\n\t\t// finally, create the uv data\n\n\t\tgenerateUVs();\n\n\t\t// build non-indexed geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );\n\n\t\tif ( detail === 0 ) {\n\n\t\t\tthis.computeVertexNormals(); // flat normals\n\n\t\t} else {\n\n\t\t\tthis.normalizeNormals(); // smooth normals\n\n\t\t}\n\n\t\t// helper functions\n\n\t\tfunction subdivide( detail ) {\n\n\t\t\tvar a = new Vector3();\n\t\t\tvar b = new Vector3();\n\t\t\tvar c = new Vector3();\n\n\t\t\t// iterate over all faces and apply a subdivison with the given detail value\n\n\t\t\tfor ( var i = 0; i < indices.length; i += 3 ) {\n\n\t\t\t\t// get the vertices of the face\n\n\t\t\t\tgetVertexByIndex( indices[ i + 0 ], a );\n\t\t\t\tgetVertexByIndex( indices[ i + 1 ], b );\n\t\t\t\tgetVertexByIndex( indices[ i + 2 ], c );\n\n\t\t\t\t// perform subdivision\n\n\t\t\t\tsubdivideFace( a, b, c, detail );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction subdivideFace( a, b, c, detail ) {\n\n\t\t\tvar cols = Math.pow( 2, detail );\n\n\t\t\t// we use this multidimensional array as a data structure for creating the subdivision\n\n\t\t\tvar v = [];\n\n\t\t\tvar i, j;\n\n\t\t\t// construct all of the vertices for this subdivision\n\n\t\t\tfor ( i = 0; i <= cols; i ++ ) {\n\n\t\t\t\tv[ i ] = [];\n\n\t\t\t\tvar aj = a.clone().lerp( c, i / cols );\n\t\t\t\tvar bj = b.clone().lerp( c, i / cols );\n\n\t\t\t\tvar rows = cols - i;\n\n\t\t\t\tfor ( j = 0; j <= rows; j ++ ) {\n\n\t\t\t\t\tif ( j === 0 && i === cols ) {\n\n\t\t\t\t\t\tv[ i ][ j ] = aj;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tv[ i ][ j ] = aj.clone().lerp( bj, j / rows );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// construct all of the faces\n\n\t\t\tfor ( i = 0; i < cols; i ++ ) {\n\n\t\t\t\tfor ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {\n\n\t\t\t\t\tvar k = Math.floor( j / 2 );\n\n\t\t\t\t\tif ( j % 2 === 0 ) {\n\n\t\t\t\t\t\tpushVertex( v[ i ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k ] );\n\t\t\t\t\t\tpushVertex( v[ i ][ k ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tpushVertex( v[ i ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction appplyRadius( radius ) {\n\n\t\t\tvar vertex = new Vector3();\n\n\t\t\t// iterate over the entire buffer and apply the radius to each vertex\n\n\t\t\tfor ( var i = 0; i < vertexBuffer.length; i += 3 ) {\n\n\t\t\t\tvertex.x = vertexBuffer[ i + 0 ];\n\t\t\t\tvertex.y = vertexBuffer[ i + 1 ];\n\t\t\t\tvertex.z = vertexBuffer[ i + 2 ];\n\n\t\t\t\tvertex.normalize().multiplyScalar( radius );\n\n\t\t\t\tvertexBuffer[ i + 0 ] = vertex.x;\n\t\t\t\tvertexBuffer[ i + 1 ] = vertex.y;\n\t\t\t\tvertexBuffer[ i + 2 ] = vertex.z;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateUVs() {\n\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tfor ( var i = 0; i < vertexBuffer.length; i += 3 ) {\n\n\t\t\t\tvertex.x = vertexBuffer[ i + 0 ];\n\t\t\t\tvertex.y = vertexBuffer[ i + 1 ];\n\t\t\t\tvertex.z = vertexBuffer[ i + 2 ];\n\n\t\t\t\tvar u = azimuth( vertex ) / 2 / Math.PI + 0.5;\n\t\t\t\tvar v = inclination( vertex ) / Math.PI + 0.5;\n\t\t\t\tuvBuffer.push( u, 1 - v );\n\n\t\t\t}\n\n\t\t\tcorrectUVs();\n\n\t\t\tcorrectSeam();\n\n\t\t}\n\n\t\tfunction correctSeam() {\n\n\t\t\t// handle case when face straddles the seam, see #3269\n\n\t\t\tfor ( var i = 0; i < uvBuffer.length; i += 6 ) {\n\n\t\t\t\t// uv data of a single face\n\n\t\t\t\tvar x0 = uvBuffer[ i + 0 ];\n\t\t\t\tvar x1 = uvBuffer[ i + 2 ];\n\t\t\t\tvar x2 = uvBuffer[ i + 4 ];\n\n\t\t\t\tvar max = Math.max( x0, x1, x2 );\n\t\t\t\tvar min = Math.min( x0, x1, x2 );\n\n\t\t\t\t// 0.9 is somewhat arbitrary\n\n\t\t\t\tif ( max > 0.9 && min < 0.1 ) {\n\n\t\t\t\t\tif ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;\n\t\t\t\t\tif ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;\n\t\t\t\t\tif ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction pushVertex( vertex ) {\n\n\t\t\tvertexBuffer.push( vertex.x, vertex.y, vertex.z );\n\n\t\t}\n\n\t\tfunction getVertexByIndex( index, vertex ) {\n\n\t\t\tvar stride = index * 3;\n\n\t\t\tvertex.x = vertices[ stride + 0 ];\n\t\t\tvertex.y = vertices[ stride + 1 ];\n\t\t\tvertex.z = vertices[ stride + 2 ];\n\n\t\t}\n\n\t\tfunction correctUVs() {\n\n\t\t\tvar a = new Vector3();\n\t\t\tvar b = new Vector3();\n\t\t\tvar c = new Vector3();\n\n\t\t\tvar centroid = new Vector3();\n\n\t\t\tvar uvA = new Vector2();\n\t\t\tvar uvB = new Vector2();\n\t\t\tvar uvC = new Vector2();\n\n\t\t\tfor ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {\n\n\t\t\t\ta.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );\n\t\t\t\tb.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );\n\t\t\t\tc.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );\n\n\t\t\t\tuvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );\n\t\t\t\tuvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );\n\t\t\t\tuvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );\n\n\t\t\t\tcentroid.copy( a ).add( b ).add( c ).divideScalar( 3 );\n\n\t\t\t\tvar azi = azimuth( centroid );\n\n\t\t\t\tcorrectUV( uvA, j + 0, a, azi );\n\t\t\t\tcorrectUV( uvB, j + 2, b, azi );\n\t\t\t\tcorrectUV( uvC, j + 4, c, azi );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction correctUV( uv, stride, vector, azimuth ) {\n\n\t\t\tif ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {\n\n\t\t\t\tuvBuffer[ stride ] = uv.x - 1;\n\n\t\t\t}\n\n\t\t\tif ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {\n\n\t\t\t\tuvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Angle around the Y axis, counter-clockwise when looking from above.\n\n\t\tfunction azimuth( vector ) {\n\n\t\t\treturn Math.atan2( vector.z, - vector.x );\n\n\t\t}\n\n\n\t\t// Angle above the XZ plane.\n\n\t\tfunction inclination( vector ) {\n\n\t\t\treturn Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );\n\n\t\t}\n\n\t}\n\n\tPolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tPolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// TetrahedronGeometry\n\n\tfunction TetrahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TetrahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTetrahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tTetrahedronGeometry.prototype.constructor = TetrahedronGeometry;\n\n\t// TetrahedronBufferGeometry\n\n\tfunction TetrahedronBufferGeometry( radius, detail ) {\n\n\t\tvar vertices = [\n\t\t\t1, 1, 1, \t- 1, - 1, 1, \t- 1, 1, - 1, \t1, - 1, - 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t2, 1, 0, \t0, 3, 2,\t1, 3, 0,\t2, 3, 1\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'TetrahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tTetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tTetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// OctahedronGeometry\n\n\tfunction OctahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'OctahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tOctahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tOctahedronGeometry.prototype.constructor = OctahedronGeometry;\n\n\t// OctahedronBufferGeometry\n\n\tfunction OctahedronBufferGeometry( radius, detail ) {\n\n\t\tvar vertices = [\n\t\t\t1, 0, 0, \t- 1, 0, 0,\t0, 1, 0,\n\t\t\t0, - 1, 0, \t0, 0, 1,\t0, 0, - 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t0, 2, 4,\t0, 4, 3,\t0, 3, 5,\n\t\t\t0, 5, 2,\t1, 2, 5,\t1, 5, 3,\n\t\t\t1, 3, 4,\t1, 4, 2\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'OctahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tOctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tOctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// IcosahedronGeometry\n\n\tfunction IcosahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'IcosahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tIcosahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tIcosahedronGeometry.prototype.constructor = IcosahedronGeometry;\n\n\t// IcosahedronBufferGeometry\n\n\tfunction IcosahedronBufferGeometry( radius, detail ) {\n\n\t\tvar t = ( 1 + Math.sqrt( 5 ) ) / 2;\n\n\t\tvar vertices = [\n\t\t\t- 1, t, 0, \t1, t, 0, \t- 1, - t, 0, \t1, - t, 0,\n\t\t\t 0, - 1, t, \t0, 1, t,\t0, - 1, - t, \t0, 1, - t,\n\t\t\t t, 0, - 1, \tt, 0, 1, \t- t, 0, - 1, \t- t, 0, 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t 0, 11, 5, \t0, 5, 1, \t0, 1, 7, \t0, 7, 10, \t0, 10, 11,\n\t\t\t 1, 5, 9, \t5, 11, 4,\t11, 10, 2,\t10, 7, 6,\t7, 1, 8,\n\t\t\t 3, 9, 4, \t3, 4, 2,\t3, 2, 6,\t3, 6, 8,\t3, 8, 9,\n\t\t\t 4, 9, 5, \t2, 4, 11,\t6, 2, 10,\t8, 6, 7,\t9, 8, 1\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'IcosahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tIcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tIcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;\n\n\t/**\n\t * @author Abe Pazos / https://hamoid.com\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// DodecahedronGeometry\n\n\tfunction DodecahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'DodecahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tDodecahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tDodecahedronGeometry.prototype.constructor = DodecahedronGeometry;\n\n\t// DodecahedronBufferGeometry\n\n\tfunction DodecahedronBufferGeometry( radius, detail ) {\n\n\t\tvar t = ( 1 + Math.sqrt( 5 ) ) / 2;\n\t\tvar r = 1 / t;\n\n\t\tvar vertices = [\n\n\t\t\t// (±1, ±1, ±1)\n\t\t\t- 1, - 1, - 1,\t- 1, - 1, 1,\n\t\t\t- 1, 1, - 1, - 1, 1, 1,\n\t\t\t1, - 1, - 1, 1, - 1, 1,\n\t\t\t1, 1, - 1, 1, 1, 1,\n\n\t\t\t// (0, ±1/φ, ±φ)\n\t\t\t 0, - r, - t, 0, - r, t,\n\t\t\t 0, r, - t, 0, r, t,\n\n\t\t\t// (±1/φ, ±φ, 0)\n\t\t\t- r, - t, 0, - r, t, 0,\n\t\t\t r, - t, 0, r, t, 0,\n\n\t\t\t// (±φ, 0, ±1/φ)\n\t\t\t- t, 0, - r, t, 0, - r,\n\t\t\t- t, 0, r, t, 0, r\n\t\t];\n\n\t\tvar indices = [\n\t\t\t3, 11, 7, \t3, 7, 15, \t3, 15, 13,\n\t\t\t7, 19, 17, \t7, 17, 6, \t7, 6, 15,\n\t\t\t17, 4, 8, \t17, 8, 10, \t17, 10, 6,\n\t\t\t8, 0, 16, \t8, 16, 2, \t8, 2, 10,\n\t\t\t0, 12, 1, \t0, 1, 18, \t0, 18, 16,\n\t\t\t6, 10, 2, \t6, 2, 13, \t6, 13, 15,\n\t\t\t2, 16, 18, \t2, 18, 3, \t2, 3, 13,\n\t\t\t18, 1, 9, \t18, 9, 11, \t18, 11, 3,\n\t\t\t4, 14, 12, \t4, 12, 0, \t4, 0, 8,\n\t\t\t11, 9, 5, \t11, 5, 19, \t11, 19, 7,\n\t\t\t19, 5, 14, \t19, 14, 4, \t19, 4, 17,\n\t\t\t1, 12, 14, \t1, 14, 5, \t1, 5, 9\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'DodecahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tDodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tDodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode / https://github.com/oosmoxiecode\n\t * @author WestLangley / https://github.com/WestLangley\n\t * @author zz85 / https://github.com/zz85\n\t * @author miningold / https://github.com/miningold\n\t * @author jonobr1 / https://github.com/jonobr1\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t */\n\n\t// TubeGeometry\n\n\tfunction TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TubeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpath: path,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradius: radius,\n\t\t\tradialSegments: radialSegments,\n\t\t\tclosed: closed\n\t\t};\n\n\t\tif ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );\n\n\t\tvar bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );\n\n\t\t// expose internals\n\n\t\tthis.tangents = bufferGeometry.tangents;\n\t\tthis.normals = bufferGeometry.normals;\n\t\tthis.binormals = bufferGeometry.binormals;\n\n\t\t// create geometry\n\n\t\tthis.fromBufferGeometry( bufferGeometry );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTubeGeometry.prototype = Object.create( Geometry.prototype );\n\tTubeGeometry.prototype.constructor = TubeGeometry;\n\n\t// TubeBufferGeometry\n\n\tfunction TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TubeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpath: path,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradius: radius,\n\t\t\tradialSegments: radialSegments,\n\t\t\tclosed: closed\n\t\t};\n\n\t\ttubularSegments = tubularSegments || 64;\n\t\tradius = radius || 1;\n\t\tradialSegments = radialSegments || 8;\n\t\tclosed = closed || false;\n\n\t\tvar frames = path.computeFrenetFrames( tubularSegments, closed );\n\n\t\t// expose internals\n\n\t\tthis.tangents = frames.tangents;\n\t\tthis.normals = frames.normals;\n\t\tthis.binormals = frames.binormals;\n\n\t\t// helper variables\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar P = new Vector3();\n\n\t\tvar i, j;\n\n\t\t// buffer\n\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\t\tvar indices = [];\n\n\t\t// create buffer data\n\n\t\tgenerateBufferData();\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\t// functions\n\n\t\tfunction generateBufferData() {\n\n\t\t\tfor ( i = 0; i < tubularSegments; i ++ ) {\n\n\t\t\t\tgenerateSegment( i );\n\n\t\t\t}\n\n\t\t\t// if the geometry is not closed, generate the last row of vertices and normals\n\t\t\t// at the regular position on the given path\n\t\t\t//\n\t\t\t// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)\n\n\t\t\tgenerateSegment( ( closed === false ) ? tubularSegments : 0 );\n\n\t\t\t// uvs are generated in a separate function.\n\t\t\t// this makes it easy compute correct values for closed geometries\n\n\t\t\tgenerateUVs();\n\n\t\t\t// finally create faces\n\n\t\t\tgenerateIndices();\n\n\t\t}\n\n\t\tfunction generateSegment( i ) {\n\n\t\t\t// we use getPointAt to sample evenly distributed points from the given path\n\n\t\t\tP = path.getPointAt( i / tubularSegments, P );\n\n\t\t\t// retrieve corresponding normal and binormal\n\n\t\t\tvar N = frames.normals[ i ];\n\t\t\tvar B = frames.binormals[ i ];\n\n\t\t\t// generate normals and vertices for the current segment\n\n\t\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\n\t\t\t\tvar sin = Math.sin( v );\n\t\t\t\tvar cos = - Math.cos( v );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormal.x = ( cos * N.x + sin * B.x );\n\t\t\t\tnormal.y = ( cos * N.y + sin * B.y );\n\t\t\t\tnormal.z = ( cos * N.z + sin * B.z );\n\t\t\t\tnormal.normalize();\n\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = P.x + radius * normal.x;\n\t\t\t\tvertex.y = P.y + radius * normal.y;\n\t\t\t\tvertex.z = P.z + radius * normal.z;\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateIndices() {\n\n\t\t\tfor ( j = 1; j <= tubularSegments; j ++ ) {\n\n\t\t\t\tfor ( i = 1; i <= radialSegments; i ++ ) {\n\n\t\t\t\t\tvar a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );\n\t\t\t\t\tvar b = ( radialSegments + 1 ) * j + ( i - 1 );\n\t\t\t\t\tvar c = ( radialSegments + 1 ) * j + i;\n\t\t\t\t\tvar d = ( radialSegments + 1 ) * ( j - 1 ) + i;\n\n\t\t\t\t\t// faces\n\n\t\t\t\t\tindices.push( a, b, d );\n\t\t\t\t\tindices.push( b, c, d );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateUVs() {\n\n\t\t\tfor ( i = 0; i <= tubularSegments; i ++ ) {\n\n\t\t\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\t\t\tuv.x = i / tubularSegments;\n\t\t\t\t\tuv.y = j / radialSegments;\n\n\t\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tTubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTubeBufferGeometry.prototype.constructor = TubeBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * based on http://www.blackpawn.com/texts/pqtorus/\n\t */\n\n\t// TorusKnotGeometry\n\n\tfunction TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TorusKnotGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradialSegments: radialSegments,\n\t\t\tp: p,\n\t\t\tq: q\n\t\t};\n\n\t\tif ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );\n\n\t\tthis.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTorusKnotGeometry.prototype = Object.create( Geometry.prototype );\n\tTorusKnotGeometry.prototype.constructor = TorusKnotGeometry;\n\n\t// TorusKnotBufferGeometry\n\n\tfunction TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TorusKnotBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradialSegments: radialSegments,\n\t\t\tp: p,\n\t\t\tq: q\n\t\t};\n\n\t\tradius = radius || 1;\n\t\ttube = tube || 0.4;\n\t\ttubularSegments = Math.floor( tubularSegments ) || 64;\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\tp = p || 2;\n\t\tq = q || 3;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar i, j;\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\n\t\tvar P1 = new Vector3();\n\t\tvar P2 = new Vector3();\n\n\t\tvar B = new Vector3();\n\t\tvar T = new Vector3();\n\t\tvar N = new Vector3();\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( i = 0; i <= tubularSegments; ++ i ) {\n\n\t\t\t// the radian \"u\" is used to calculate the position on the torus curve of the current tubular segement\n\n\t\t\tvar u = i / tubularSegments * p * Math.PI * 2;\n\n\t\t\t// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.\n\t\t\t// these points are used to create a special \"coordinate space\", which is necessary to calculate the correct vertex positions\n\n\t\t\tcalculatePositionOnCurve( u, p, q, radius, P1 );\n\t\t\tcalculatePositionOnCurve( u + 0.01, p, q, radius, P2 );\n\n\t\t\t// calculate orthonormal basis\n\n\t\t\tT.subVectors( P2, P1 );\n\t\t\tN.addVectors( P2, P1 );\n\t\t\tB.crossVectors( T, N );\n\t\t\tN.crossVectors( B, T );\n\n\t\t\t// normalize B, N. T can be ignored, we don't use it\n\n\t\t\tB.normalize();\n\t\t\tN.normalize();\n\n\t\t\tfor ( j = 0; j <= radialSegments; ++ j ) {\n\n\t\t\t\t// now calculate the vertices. they are nothing more than an extrusion of the torus curve.\n\t\t\t\t// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.\n\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\t\t\t\tvar cx = - tube * Math.cos( v );\n\t\t\t\tvar cy = tube * Math.sin( v );\n\n\t\t\t\t// now calculate the final vertex position.\n\t\t\t\t// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve\n\n\t\t\t\tvertex.x = P1.x + ( cx * N.x + cy * B.x );\n\t\t\t\tvertex.y = P1.y + ( cx * N.y + cy * B.y );\n\t\t\t\tvertex.z = P1.z + ( cx * N.z + cy * B.z );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)\n\n\t\t\t\tnormal.subVectors( vertex, P1 ).normalize();\n\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( i / tubularSegments );\n\t\t\t\tuvs.push( j / radialSegments );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( j = 1; j <= tubularSegments; j ++ ) {\n\n\t\t\tfor ( i = 1; i <= radialSegments; i ++ ) {\n\n\t\t\t\t// indices\n\n\t\t\t\tvar a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );\n\t\t\t\tvar b = ( radialSegments + 1 ) * j + ( i - 1 );\n\t\t\t\tvar c = ( radialSegments + 1 ) * j + i;\n\t\t\t\tvar d = ( radialSegments + 1 ) * ( j - 1 ) + i;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\t// this function calculates the current position on the torus curve\n\n\t\tfunction calculatePositionOnCurve( u, p, q, radius, position ) {\n\n\t\t\tvar cu = Math.cos( u );\n\t\t\tvar su = Math.sin( u );\n\t\t\tvar quOverP = q / p * u;\n\t\t\tvar cs = Math.cos( quOverP );\n\n\t\t\tposition.x = radius * ( 2 + cs ) * 0.5 * cu;\n\t\t\tposition.y = radius * ( 2 + cs ) * su * 0.5;\n\t\t\tposition.z = radius * Math.sin( quOverP ) * 0.5;\n\n\t\t}\n\n\t}\n\n\tTorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// TorusGeometry\n\n\tfunction TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TorusGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\tradialSegments: radialSegments,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tarc: arc\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTorusGeometry.prototype = Object.create( Geometry.prototype );\n\tTorusGeometry.prototype.constructor = TorusGeometry;\n\n\t// TorusBufferGeometry\n\n\tfunction TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TorusBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\tradialSegments: radialSegments,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tarc: arc\n\t\t};\n\n\t\tradius = radius || 1;\n\t\ttube = tube || 0.4;\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\ttubularSegments = Math.floor( tubularSegments ) || 6;\n\t\tarc = arc || Math.PI * 2;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar center = new Vector3();\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\n\t\tvar j, i;\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\tfor ( i = 0; i <= tubularSegments; i ++ ) {\n\n\t\t\t\tvar u = i / tubularSegments * arc;\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );\n\t\t\t\tvertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );\n\t\t\t\tvertex.z = tube * Math.sin( v );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tcenter.x = radius * Math.cos( u );\n\t\t\t\tcenter.y = radius * Math.sin( u );\n\t\t\t\tnormal.subVectors( vertex, center ).normalize();\n\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( i / tubularSegments );\n\t\t\t\tuvs.push( j / radialSegments );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( j = 1; j <= radialSegments; j ++ ) {\n\n\t\t\tfor ( i = 1; i <= tubularSegments; i ++ ) {\n\n\t\t\t\t// indices\n\n\t\t\t\tvar a = ( tubularSegments + 1 ) * j + i - 1;\n\t\t\t\tvar b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;\n\t\t\t\tvar c = ( tubularSegments + 1 ) * ( j - 1 ) + i;\n\t\t\t\tvar d = ( tubularSegments + 1 ) * j + i;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tTorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTorusBufferGeometry.prototype.constructor = TorusBufferGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t * Port from https://github.com/mapbox/earcut (v2.1.2)\n\t */\n\n\tvar Earcut = {\n\n\t\ttriangulate: function ( data, holeIndices, dim ) {\n\n\t\t\tdim = dim || 2;\n\n\t\t\tvar hasHoles = holeIndices && holeIndices.length,\n\t\t\t\touterLen = hasHoles ? holeIndices[ 0 ] * dim : data.length,\n\t\t\t\touterNode = linkedList( data, 0, outerLen, dim, true ),\n\t\t\t\ttriangles = [];\n\n\t\t\tif ( ! outerNode ) return triangles;\n\n\t\t\tvar minX, minY, maxX, maxY, x, y, invSize;\n\n\t\t\tif ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );\n\n\t\t\t// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox\n\n\t\t\tif ( data.length > 80 * dim ) {\n\n\t\t\t\tminX = maxX = data[ 0 ];\n\t\t\t\tminY = maxY = data[ 1 ];\n\n\t\t\t\tfor ( var i = dim; i < outerLen; i += dim ) {\n\n\t\t\t\t\tx = data[ i ];\n\t\t\t\t\ty = data[ i + 1 ];\n\t\t\t\t\tif ( x < minX ) minX = x;\n\t\t\t\t\tif ( y < minY ) minY = y;\n\t\t\t\t\tif ( x > maxX ) maxX = x;\n\t\t\t\t\tif ( y > maxY ) maxY = y;\n\n\t\t\t\t}\n\n\t\t\t\t// minX, minY and invSize are later used to transform coords into integers for z-order calculation\n\n\t\t\t\tinvSize = Math.max( maxX - minX, maxY - minY );\n\t\t\t\tinvSize = invSize !== 0 ? 1 / invSize : 0;\n\n\t\t\t}\n\n\t\t\tearcutLinked( outerNode, triangles, dim, minX, minY, invSize );\n\n\t\t\treturn triangles;\n\n\t\t}\n\n\t};\n\n\t// create a circular doubly linked list from polygon points in the specified winding order\n\n\tfunction linkedList( data, start, end, dim, clockwise ) {\n\n\t\tvar i, last;\n\n\t\tif ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {\n\n\t\t\tfor ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );\n\n\t\t} else {\n\n\t\t\tfor ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );\n\n\t\t}\n\n\t\tif ( last && equals( last, last.next ) ) {\n\n\t\t\tremoveNode( last );\n\t\t\tlast = last.next;\n\n\t\t}\n\n\t\treturn last;\n\n\t}\n\n\t// eliminate colinear or duplicate points\n\n\tfunction filterPoints( start, end ) {\n\n\t\tif ( ! start ) return start;\n\t\tif ( ! end ) end = start;\n\n\t\tvar p = start, again;\n\n\t\tdo {\n\n\t\t\tagain = false;\n\n\t\t\tif ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {\n\n\t\t\t\tremoveNode( p );\n\t\t\t\tp = end = p.prev;\n\t\t\t\tif ( p === p.next ) break;\n\t\t\t\tagain = true;\n\n\t\t\t} else {\n\n\t\t\t\tp = p.next;\n\n\t\t\t}\n\n\t\t} while ( again || p !== end );\n\n\t\treturn end;\n\n\t}\n\n\t// main ear slicing loop which triangulates a polygon (given as a linked list)\n\n\tfunction earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {\n\n\t\tif ( ! ear ) return;\n\n\t\t// interlink polygon nodes in z-order\n\n\t\tif ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );\n\n\t\tvar stop = ear, prev, next;\n\n\t\t// iterate through ears, slicing them one by one\n\n\t\twhile ( ear.prev !== ear.next ) {\n\n\t\t\tprev = ear.prev;\n\t\t\tnext = ear.next;\n\n\t\t\tif ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {\n\n\t\t\t\t// cut off the triangle\n\t\t\t\ttriangles.push( prev.i / dim );\n\t\t\t\ttriangles.push( ear.i / dim );\n\t\t\t\ttriangles.push( next.i / dim );\n\n\t\t\t\tremoveNode( ear );\n\n\t\t\t\t// skipping the next vertice leads to less sliver triangles\n\t\t\t\tear = next.next;\n\t\t\t\tstop = next.next;\n\n\t\t\t\tcontinue;\n\n\t\t\t}\n\n\t\t\tear = next;\n\n\t\t\t// if we looped through the whole remaining polygon and can't find any more ears\n\n\t\t\tif ( ear === stop ) {\n\n\t\t\t\t// try filtering points and slicing again\n\n\t\t\t\tif ( ! pass ) {\n\n\t\t\t\t\tearcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );\n\n\t\t\t\t\t// if this didn't work, try curing all small self-intersections locally\n\n\t\t\t\t} else if ( pass === 1 ) {\n\n\t\t\t\t\tear = cureLocalIntersections( ear, triangles, dim );\n\t\t\t\t\tearcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );\n\n\t\t\t\t// as a last resort, try splitting the remaining polygon into two\n\n\t\t\t\t} else if ( pass === 2 ) {\n\n\t\t\t\t\tsplitEarcut( ear, triangles, dim, minX, minY, invSize );\n\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t// check whether a polygon node forms a valid ear with adjacent nodes\n\n\tfunction isEar( ear ) {\n\n\t\tvar a = ear.prev,\n\t\t\tb = ear,\n\t\t\tc = ear.next;\n\n\t\tif ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear\n\n\t\t// now make sure we don't have other points inside the potential ear\n\t\tvar p = ear.next.next;\n\n\t\twhile ( p !== ear.prev ) {\n\n\t\t\tif ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && area( p.prev, p, p.next ) >= 0 ) {\n\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\tfunction isEarHashed( ear, minX, minY, invSize ) {\n\n\t\tvar a = ear.prev,\n\t\t\tb = ear,\n\t\t\tc = ear.next;\n\n\t\tif ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear\n\n\t\t// triangle bbox; min & max are calculated like this for speed\n\n\t\tvar minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),\n\t\t\tminTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),\n\t\t\tmaxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),\n\t\t\tmaxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );\n\n\t\t// z-order range for the current triangle bbox;\n\n\t\tvar minZ = zOrder( minTX, minTY, minX, minY, invSize ),\n\t\t\tmaxZ = zOrder( maxTX, maxTY, minX, minY, invSize );\n\n\t\t// first look for points inside the triangle in increasing z-order\n\n\t\tvar p = ear.nextZ;\n\n\t\twhile ( p && p.z <= maxZ ) {\n\n\t\t\tif ( p !== ear.prev && p !== ear.next &&\n\t\t\t\t\tpointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&\n\t\t\t\t\tarea( p.prev, p, p.next ) >= 0 ) return false;\n\t\t\tp = p.nextZ;\n\n\t\t}\n\n\t\t// then look for points in decreasing z-order\n\n\t\tp = ear.prevZ;\n\n\t\twhile ( p && p.z >= minZ ) {\n\n\t\t\tif ( p !== ear.prev && p !== ear.next &&\n\t\t\t\t\tpointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&\n\t\t\t\t\tarea( p.prev, p, p.next ) >= 0 ) return false;\n\n\t\t\tp = p.prevZ;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\t// go through all polygon nodes and cure small local self-intersections\n\n\tfunction cureLocalIntersections( start, triangles, dim ) {\n\n\t\tvar p = start;\n\n\t\tdo {\n\n\t\t\tvar a = p.prev, b = p.next.next;\n\n\t\t\tif ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {\n\n\t\t\t\ttriangles.push( a.i / dim );\n\t\t\t\ttriangles.push( p.i / dim );\n\t\t\t\ttriangles.push( b.i / dim );\n\n\t\t\t\t// remove two nodes involved\n\n\t\t\t\tremoveNode( p );\n\t\t\t\tremoveNode( p.next );\n\n\t\t\t\tp = start = b;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== start );\n\n\t\treturn p;\n\n\t}\n\n\t// try splitting polygon into two and triangulate them independently\n\n\tfunction splitEarcut( start, triangles, dim, minX, minY, invSize ) {\n\n\t\t// look for a valid diagonal that divides the polygon into two\n\n\t\tvar a = start;\n\n\t\tdo {\n\n\t\t\tvar b = a.next.next;\n\n\t\t\twhile ( b !== a.prev ) {\n\n\t\t\t\tif ( a.i !== b.i && isValidDiagonal( a, b ) ) {\n\n\t\t\t\t\t// split the polygon in two by the diagonal\n\n\t\t\t\t\tvar c = splitPolygon( a, b );\n\n\t\t\t\t\t// filter colinear points around the cuts\n\n\t\t\t\t\ta = filterPoints( a, a.next );\n\t\t\t\t\tc = filterPoints( c, c.next );\n\n\t\t\t\t\t// run earcut on each half\n\n\t\t\t\t\tearcutLinked( a, triangles, dim, minX, minY, invSize );\n\t\t\t\t\tearcutLinked( c, triangles, dim, minX, minY, invSize );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tb = b.next;\n\n\t\t\t}\n\n\t\t\ta = a.next;\n\n\t\t} while ( a !== start );\n\n\t}\n\n\t// link every hole into the outer loop, producing a single-ring polygon without holes\n\n\tfunction eliminateHoles( data, holeIndices, outerNode, dim ) {\n\n\t\tvar queue = [], i, len, start, end, list;\n\n\t\tfor ( i = 0, len = holeIndices.length; i < len; i ++ ) {\n\n\t\t\tstart = holeIndices[ i ] * dim;\n\t\t\tend = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;\n\t\t\tlist = linkedList( data, start, end, dim, false );\n\t\t\tif ( list === list.next ) list.steiner = true;\n\t\t\tqueue.push( getLeftmost( list ) );\n\n\t\t}\n\n\t\tqueue.sort( compareX );\n\n\t\t// process holes from left to right\n\n\t\tfor ( i = 0; i < queue.length; i ++ ) {\n\n\t\t\teliminateHole( queue[ i ], outerNode );\n\t\t\touterNode = filterPoints( outerNode, outerNode.next );\n\n\t\t}\n\n\t\treturn outerNode;\n\n\t}\n\n\tfunction compareX( a, b ) {\n\n\t\treturn a.x - b.x;\n\n\t}\n\n\t// find a bridge between vertices that connects hole with an outer ring and and link it\n\n\tfunction eliminateHole( hole, outerNode ) {\n\n\t\touterNode = findHoleBridge( hole, outerNode );\n\n\t\tif ( outerNode ) {\n\n\t\t\tvar b = splitPolygon( outerNode, hole );\n\n\t\t\tfilterPoints( b, b.next );\n\n\t\t}\n\n\t}\n\n\t// David Eberly's algorithm for finding a bridge between hole and outer polygon\n\n\tfunction findHoleBridge( hole, outerNode ) {\n\n\t\tvar p = outerNode,\n\t\t\thx = hole.x,\n\t\t\thy = hole.y,\n\t\t\tqx = - Infinity,\n\t\t\tm;\n\n\t\t// find a segment intersected by a ray from the hole's leftmost point to the left;\n\t\t// segment's endpoint with lesser x will be potential connection point\n\n\t\tdo {\n\n\t\t\tif ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {\n\n\t\t\t\tvar x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );\n\n\t\t\t\tif ( x <= hx && x > qx ) {\n\n\t\t\t\t\tqx = x;\n\n\t\t\t\t\tif ( x === hx ) {\n\n\t\t\t\t\t\tif ( hy === p.y ) return p;\n\t\t\t\t\t\tif ( hy === p.next.y ) return p.next;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tm = p.x < p.next.x ? p : p.next;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== outerNode );\n\n\t\tif ( ! m ) return null;\n\n\t\tif ( hx === qx ) return m.prev; // hole touches outer segment; pick lower endpoint\n\n\t\t// look for points inside the triangle of hole point, segment intersection and endpoint;\n\t\t// if there are no points found, we have a valid connection;\n\t\t// otherwise choose the point of the minimum angle with the ray as connection point\n\n\t\tvar stop = m,\n\t\t\tmx = m.x,\n\t\t\tmy = m.y,\n\t\t\ttanMin = Infinity,\n\t\t\ttan;\n\n\t\tp = m.next;\n\n\t\twhile ( p !== stop ) {\n\n\t\t\tif ( hx >= p.x && p.x >= mx && hx !== p.x &&\n\t\t\t\t\t\t\tpointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {\n\n\t\t\t\ttan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential\n\n\t\t\t\tif ( ( tan < tanMin || ( tan === tanMin && p.x > m.x ) ) && locallyInside( p, hole ) ) {\n\n\t\t\t\t\tm = p;\n\t\t\t\t\ttanMin = tan;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t}\n\n\t\treturn m;\n\n\t}\n\n\t// interlink polygon nodes in z-order\n\n\tfunction indexCurve( start, minX, minY, invSize ) {\n\n\t\tvar p = start;\n\n\t\tdo {\n\n\t\t\tif ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );\n\t\t\tp.prevZ = p.prev;\n\t\t\tp.nextZ = p.next;\n\t\t\tp = p.next;\n\n\t\t} while ( p !== start );\n\n\t\tp.prevZ.nextZ = null;\n\t\tp.prevZ = null;\n\n\t\tsortLinked( p );\n\n\t}\n\n\t// Simon Tatham's linked list merge sort algorithm\n\t// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html\n\n\tfunction sortLinked( list ) {\n\n\t\tvar i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1;\n\n\t\tdo {\n\n\t\t\tp = list;\n\t\t\tlist = null;\n\t\t\ttail = null;\n\t\t\tnumMerges = 0;\n\n\t\t\twhile ( p ) {\n\n\t\t\t\tnumMerges ++;\n\t\t\t\tq = p;\n\t\t\t\tpSize = 0;\n\n\t\t\t\tfor ( i = 0; i < inSize; i ++ ) {\n\n\t\t\t\t\tpSize ++;\n\t\t\t\t\tq = q.nextZ;\n\t\t\t\t\tif ( ! q ) break;\n\n\t\t\t\t}\n\n\t\t\t\tqSize = inSize;\n\n\t\t\t\twhile ( pSize > 0 || ( qSize > 0 && q ) ) {\n\n\t\t\t\t\tif ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {\n\n\t\t\t\t\t\te = p;\n\t\t\t\t\t\tp = p.nextZ;\n\t\t\t\t\t\tpSize --;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\te = q;\n\t\t\t\t\t\tq = q.nextZ;\n\t\t\t\t\t\tqSize --;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( tail ) tail.nextZ = e;\n\t\t\t\t\telse list = e;\n\n\t\t\t\t\te.prevZ = tail;\n\t\t\t\t\ttail = e;\n\n\t\t\t\t}\n\n\t\t\t\tp = q;\n\n\t\t\t}\n\n\t\t\ttail.nextZ = null;\n\t\t\tinSize *= 2;\n\n\t\t} while ( numMerges > 1 );\n\n\t\treturn list;\n\n\t}\n\n\t// z-order of a point given coords and inverse of the longer side of data bbox\n\n\tfunction zOrder( x, y, minX, minY, invSize ) {\n\n\t\t// coords are transformed into non-negative 15-bit integer range\n\n\t\tx = 32767 * ( x - minX ) * invSize;\n\t\ty = 32767 * ( y - minY ) * invSize;\n\n\t\tx = ( x | ( x << 8 ) ) & 0x00FF00FF;\n\t\tx = ( x | ( x << 4 ) ) & 0x0F0F0F0F;\n\t\tx = ( x | ( x << 2 ) ) & 0x33333333;\n\t\tx = ( x | ( x << 1 ) ) & 0x55555555;\n\n\t\ty = ( y | ( y << 8 ) ) & 0x00FF00FF;\n\t\ty = ( y | ( y << 4 ) ) & 0x0F0F0F0F;\n\t\ty = ( y | ( y << 2 ) ) & 0x33333333;\n\t\ty = ( y | ( y << 1 ) ) & 0x55555555;\n\n\t\treturn x | ( y << 1 );\n\n\t}\n\n\t// find the leftmost node of a polygon ring\n\n\tfunction getLeftmost( start ) {\n\n\t\tvar p = start, leftmost = start;\n\n\t\tdo {\n\n\t\t\tif ( p.x < leftmost.x ) leftmost = p;\n\t\t\tp = p.next;\n\n\t\t} while ( p !== start );\n\n\t\treturn leftmost;\n\n\t}\n\n\t// check if a point lies within a convex triangle\n\n\tfunction pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {\n\n\t\treturn ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&\n\t\t ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&\n\t\t ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;\n\n\t}\n\n\t// check if a diagonal between two polygon nodes is valid (lies in polygon interior)\n\n\tfunction isValidDiagonal( a, b ) {\n\n\t\treturn a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) &&\n\t\t\tlocallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b );\n\n\t}\n\n\t// signed area of a triangle\n\n\tfunction area( p, q, r ) {\n\n\t\treturn ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );\n\n\t}\n\n\t// check if two points are equal\n\n\tfunction equals( p1, p2 ) {\n\n\t\treturn p1.x === p2.x && p1.y === p2.y;\n\n\t}\n\n\t// check if two segments intersect\n\n\tfunction intersects( p1, q1, p2, q2 ) {\n\n\t\tif ( ( equals( p1, q1 ) && equals( p2, q2 ) ) ||\n\t\t\t\t( equals( p1, q2 ) && equals( p2, q1 ) ) ) return true;\n\n\t\treturn area( p1, q1, p2 ) > 0 !== area( p1, q1, q2 ) > 0 &&\n\t\t\t\t\t area( p2, q2, p1 ) > 0 !== area( p2, q2, q1 ) > 0;\n\n\t}\n\n\t// check if a polygon diagonal intersects any polygon segments\n\n\tfunction intersectsPolygon( a, b ) {\n\n\t\tvar p = a;\n\n\t\tdo {\n\n\t\t\tif ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&\n\t\t\t\t\t\t\tintersects( p, p.next, a, b ) ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== a );\n\n\t\treturn false;\n\n\t}\n\n\t// check if a polygon diagonal is locally inside the polygon\n\n\tfunction locallyInside( a, b ) {\n\n\t\treturn area( a.prev, a, a.next ) < 0 ?\n\t\t\tarea( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :\n\t\t\tarea( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;\n\n\t}\n\n\t// check if the middle point of a polygon diagonal is inside the polygon\n\n\tfunction middleInside( a, b ) {\n\n\t\tvar p = a,\n\t\t\tinside = false,\n\t\t\tpx = ( a.x + b.x ) / 2,\n\t\t\tpy = ( a.y + b.y ) / 2;\n\n\t\tdo {\n\n\t\t\tif ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&\n\t\t\t\t\t\t\t( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) {\n\n\t\t\t\tinside = ! inside;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== a );\n\n\t\treturn inside;\n\n\t}\n\n\t// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;\n\t// if one belongs to the outer ring and another to a hole, it merges it into a single ring\n\n\tfunction splitPolygon( a, b ) {\n\n\t\tvar a2 = new Node( a.i, a.x, a.y ),\n\t\t\tb2 = new Node( b.i, b.x, b.y ),\n\t\t\tan = a.next,\n\t\t\tbp = b.prev;\n\n\t\ta.next = b;\n\t\tb.prev = a;\n\n\t\ta2.next = an;\n\t\tan.prev = a2;\n\n\t\tb2.next = a2;\n\t\ta2.prev = b2;\n\n\t\tbp.next = b2;\n\t\tb2.prev = bp;\n\n\t\treturn b2;\n\n\t}\n\n\t// create a node and optionally link it with previous one (in a circular doubly linked list)\n\n\tfunction insertNode( i, x, y, last ) {\n\n\t\tvar p = new Node( i, x, y );\n\n\t\tif ( ! last ) {\n\n\t\t\tp.prev = p;\n\t\t\tp.next = p;\n\n\t\t} else {\n\n\t\t\tp.next = last.next;\n\t\t\tp.prev = last;\n\t\t\tlast.next.prev = p;\n\t\t\tlast.next = p;\n\n\t\t}\n\n\t\treturn p;\n\n\t}\n\n\tfunction removeNode( p ) {\n\n\t\tp.next.prev = p.prev;\n\t\tp.prev.next = p.next;\n\n\t\tif ( p.prevZ ) p.prevZ.nextZ = p.nextZ;\n\t\tif ( p.nextZ ) p.nextZ.prevZ = p.prevZ;\n\n\t}\n\n\tfunction Node( i, x, y ) {\n\n\t\t// vertice index in coordinates array\n\t\tthis.i = i;\n\n\t\t// vertex coordinates\n\t\tthis.x = x;\n\t\tthis.y = y;\n\n\t\t// previous and next vertice nodes in a polygon ring\n\t\tthis.prev = null;\n\t\tthis.next = null;\n\n\t\t// z-order curve value\n\t\tthis.z = null;\n\n\t\t// previous and next nodes in z-order\n\t\tthis.prevZ = null;\n\t\tthis.nextZ = null;\n\n\t\t// indicates whether this is a steiner point\n\t\tthis.steiner = false;\n\n\t}\n\n\tfunction signedArea( data, start, end, dim ) {\n\n\t\tvar sum = 0;\n\n\t\tfor ( var i = start, j = end - dim; i < end; i += dim ) {\n\n\t\t\tsum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );\n\t\t\tj = i;\n\n\t\t}\n\n\t\treturn sum;\n\n\t}\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t */\n\n\tvar ShapeUtils = {\n\n\t\t// calculate area of the contour polygon\n\n\t\tarea: function ( contour ) {\n\n\t\t\tvar n = contour.length;\n\t\t\tvar a = 0.0;\n\n\t\t\tfor ( var p = n - 1, q = 0; q < n; p = q ++ ) {\n\n\t\t\t\ta += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;\n\n\t\t\t}\n\n\t\t\treturn a * 0.5;\n\n\t\t},\n\n\t\tisClockWise: function ( pts ) {\n\n\t\t\treturn ShapeUtils.area( pts ) < 0;\n\n\t\t},\n\n\t\ttriangulateShape: function ( contour, holes ) {\n\n\t\t\tvar vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]\n\t\t\tvar holeIndices = []; // array of hole indices\n\t\t\tvar faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]\n\n\t\t\tremoveDupEndPts( contour );\n\t\t\taddContour( vertices, contour );\n\n\t\t\t//\n\n\t\t\tvar holeIndex = contour.length;\n\n\t\t\tholes.forEach( removeDupEndPts );\n\n\t\t\tfor ( var i = 0; i < holes.length; i ++ ) {\n\n\t\t\t\tholeIndices.push( holeIndex );\n\t\t\t\tholeIndex += holes[ i ].length;\n\t\t\t\taddContour( vertices, holes[ i ] );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar triangles = Earcut.triangulate( vertices, holeIndices );\n\n\t\t\t//\n\n\t\t\tfor ( var i = 0; i < triangles.length; i += 3 ) {\n\n\t\t\t\tfaces.push( triangles.slice( i, i + 3 ) );\n\n\t\t\t}\n\n\t\t\treturn faces;\n\n\t\t}\n\n\t};\n\n\tfunction removeDupEndPts( points ) {\n\n\t\tvar l = points.length;\n\n\t\tif ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {\n\n\t\t\tpoints.pop();\n\n\t\t}\n\n\t}\n\n\tfunction addContour( vertices, contour ) {\n\n\t\tfor ( var i = 0; i < contour.length; i ++ ) {\n\n\t\t\tvertices.push( contour[ i ].x );\n\t\t\tvertices.push( contour[ i ].y );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t * Creates extruded geometry from a path shape.\n\t *\n\t * parameters = {\n\t *\n\t * curveSegments: , // number of points on the curves\n\t * steps: , // number of points for z-side extrusions / used for subdividing segments of extrude spline too\n\t * depth: , // Depth to extrude the shape\n\t *\n\t * bevelEnabled: , // turn on bevel\n\t * bevelThickness: , // how deep into the original shape bevel goes\n\t * bevelSize: , // how far from shape outline is bevel\n\t * bevelSegments: , // number of bevel layers\n\t *\n\t * extrudePath: // curve to extrude shape along\n\t *\n\t * UVGenerator: // object that provides UV generator functions\n\t *\n\t * }\n\t */\n\n\t// ExtrudeGeometry\n\n\tfunction ExtrudeGeometry( shapes, options ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ExtrudeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\toptions: options\n\t\t};\n\n\t\tthis.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tExtrudeGeometry.prototype = Object.create( Geometry.prototype );\n\tExtrudeGeometry.prototype.constructor = ExtrudeGeometry;\n\n\tExtrudeGeometry.prototype.toJSON = function () {\n\n\t\tvar data = Geometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\t\tvar options = this.parameters.options;\n\n\t\treturn toJSON( shapes, options, data );\n\n\t};\n\n\t// ExtrudeBufferGeometry\n\n\tfunction ExtrudeBufferGeometry( shapes, options ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'ExtrudeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\toptions: options\n\t\t};\n\n\t\tshapes = Array.isArray( shapes ) ? shapes : [ shapes ];\n\n\t\tvar scope = this;\n\n\t\tvar verticesArray = [];\n\t\tvar uvArray = [];\n\n\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\tvar shape = shapes[ i ];\n\t\t\taddShape( shape );\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );\n\n\t\tthis.computeVertexNormals();\n\n\t\t// functions\n\n\t\tfunction addShape( shape ) {\n\n\t\t\tvar placeholder = [];\n\n\t\t\t// options\n\n\t\t\tvar curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;\n\t\t\tvar steps = options.steps !== undefined ? options.steps : 1;\n\t\t\tvar depth = options.depth !== undefined ? options.depth : 100;\n\n\t\t\tvar bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;\n\t\t\tvar bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6;\n\t\t\tvar bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2;\n\t\t\tvar bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;\n\n\t\t\tvar extrudePath = options.extrudePath;\n\n\t\t\tvar uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator;\n\n\t\t\t// deprecated options\n\n\t\t\tif ( options.amount !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' );\n\t\t\t\tdepth = options.amount;\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar extrudePts, extrudeByPath = false;\n\t\t\tvar splineTube, binormal, normal, position2;\n\n\t\t\tif ( extrudePath ) {\n\n\t\t\t\textrudePts = extrudePath.getSpacedPoints( steps );\n\n\t\t\t\textrudeByPath = true;\n\t\t\t\tbevelEnabled = false; // bevels not supported for path extrusion\n\n\t\t\t\t// SETUP TNB variables\n\n\t\t\t\t// TODO1 - have a .isClosed in spline?\n\n\t\t\t\tsplineTube = extrudePath.computeFrenetFrames( steps, false );\n\n\t\t\t\t// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);\n\n\t\t\t\tbinormal = new Vector3();\n\t\t\t\tnormal = new Vector3();\n\t\t\t\tposition2 = new Vector3();\n\n\t\t\t}\n\n\t\t\t// Safeguards if bevels are not enabled\n\n\t\t\tif ( ! bevelEnabled ) {\n\n\t\t\t\tbevelSegments = 0;\n\t\t\t\tbevelThickness = 0;\n\t\t\t\tbevelSize = 0;\n\n\t\t\t}\n\n\t\t\t// Variables initialization\n\n\t\t\tvar ahole, h, hl; // looping of holes\n\n\t\t\tvar shapePoints = shape.extractPoints( curveSegments );\n\n\t\t\tvar vertices = shapePoints.shape;\n\t\t\tvar holes = shapePoints.holes;\n\n\t\t\tvar reverse = ! ShapeUtils.isClockWise( vertices );\n\n\t\t\tif ( reverse ) {\n\n\t\t\t\tvertices = vertices.reverse();\n\n\t\t\t\t// Maybe we should also check if holes are in the opposite direction, just to be safe ...\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\n\t\t\t\t\tif ( ShapeUtils.isClockWise( ahole ) ) {\n\n\t\t\t\t\t\tholes[ h ] = ahole.reverse();\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\tvar faces = ShapeUtils.triangulateShape( vertices, holes );\n\n\t\t\t/* Vertices */\n\n\t\t\tvar contour = vertices; // vertices has all points but contour has only points of circumference\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\n\t\t\t\tvertices = vertices.concat( ahole );\n\n\t\t\t}\n\n\n\t\t\tfunction scalePt2( pt, vec, size ) {\n\n\t\t\t\tif ( ! vec ) console.error( \"THREE.ExtrudeGeometry: vec does not exist\" );\n\n\t\t\t\treturn vec.clone().multiplyScalar( size ).add( pt );\n\n\t\t\t}\n\n\t\t\tvar b, bs, t, z,\n\t\t\t\tvert, vlen = vertices.length,\n\t\t\t\tface, flen = faces.length;\n\n\n\t\t\t// Find directions for point movement\n\n\n\t\t\tfunction getBevelVec( inPt, inPrev, inNext ) {\n\n\t\t\t\t// computes for inPt the corresponding point inPt' on a new contour\n\t\t\t\t// shifted by 1 unit (length of normalized vector) to the left\n\t\t\t\t// if we walk along contour clockwise, this new contour is outside the old one\n\t\t\t\t//\n\t\t\t\t// inPt' is the intersection of the two lines parallel to the two\n\t\t\t\t// adjacent edges of inPt at a distance of 1 unit on the left side.\n\n\t\t\t\tvar v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt\n\n\t\t\t\t// good reading for geometry algorithms (here: line-line intersection)\n\t\t\t\t// http://geomalgorithms.com/a05-_intersect-1.html\n\n\t\t\t\tvar v_prev_x = inPt.x - inPrev.x,\n\t\t\t\t\tv_prev_y = inPt.y - inPrev.y;\n\t\t\t\tvar v_next_x = inNext.x - inPt.x,\n\t\t\t\t\tv_next_y = inNext.y - inPt.y;\n\n\t\t\t\tvar v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );\n\n\t\t\t\t// check for collinear edges\n\t\t\t\tvar collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );\n\n\t\t\t\tif ( Math.abs( collinear0 ) > Number.EPSILON ) {\n\n\t\t\t\t\t// not collinear\n\n\t\t\t\t\t// length of vectors for normalizing\n\n\t\t\t\t\tvar v_prev_len = Math.sqrt( v_prev_lensq );\n\t\t\t\t\tvar v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );\n\n\t\t\t\t\t// shift adjacent points by unit vectors to the left\n\n\t\t\t\t\tvar ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );\n\t\t\t\t\tvar ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );\n\n\t\t\t\t\tvar ptNextShift_x = ( inNext.x - v_next_y / v_next_len );\n\t\t\t\t\tvar ptNextShift_y = ( inNext.y + v_next_x / v_next_len );\n\n\t\t\t\t\t// scaling factor for v_prev to intersection point\n\n\t\t\t\t\tvar sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -\n\t\t\t\t\t\t\t( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /\n\t\t\t\t\t\t( v_prev_x * v_next_y - v_prev_y * v_next_x );\n\n\t\t\t\t\t// vector from inPt to intersection point\n\n\t\t\t\t\tv_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );\n\t\t\t\t\tv_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );\n\n\t\t\t\t\t// Don't normalize!, otherwise sharp corners become ugly\n\t\t\t\t\t// but prevent crazy spikes\n\t\t\t\t\tvar v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );\n\t\t\t\t\tif ( v_trans_lensq <= 2 ) {\n\n\t\t\t\t\t\treturn new Vector2( v_trans_x, v_trans_y );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tshrink_by = Math.sqrt( v_trans_lensq / 2 );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// handle special case of collinear edges\n\n\t\t\t\t\tvar direction_eq = false; // assumes: opposite\n\t\t\t\t\tif ( v_prev_x > Number.EPSILON ) {\n\n\t\t\t\t\t\tif ( v_next_x > Number.EPSILON ) {\n\n\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( v_prev_x < - Number.EPSILON ) {\n\n\t\t\t\t\t\t\tif ( v_next_x < - Number.EPSILON ) {\n\n\t\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tif ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {\n\n\t\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( direction_eq ) {\n\n\t\t\t\t\t\t// console.log(\"Warning: lines are a straight sequence\");\n\t\t\t\t\t\tv_trans_x = - v_prev_y;\n\t\t\t\t\t\tv_trans_y = v_prev_x;\n\t\t\t\t\t\tshrink_by = Math.sqrt( v_prev_lensq );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// console.log(\"Warning: lines are a straight spike\");\n\t\t\t\t\t\tv_trans_x = v_prev_x;\n\t\t\t\t\t\tv_trans_y = v_prev_y;\n\t\t\t\t\t\tshrink_by = Math.sqrt( v_prev_lensq / 2 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );\n\n\t\t\t}\n\n\n\t\t\tvar contourMovements = [];\n\n\t\t\tfor ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {\n\n\t\t\t\tif ( j === il ) j = 0;\n\t\t\t\tif ( k === il ) k = 0;\n\n\t\t\t\t// (j)---(i)---(k)\n\t\t\t\t// console.log('i,j,k', i, j , k)\n\n\t\t\t\tcontourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );\n\n\t\t\t}\n\n\t\t\tvar holesMovements = [],\n\t\t\t\toneHoleMovements, verticesMovements = contourMovements.concat();\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\n\t\t\t\toneHoleMovements = [];\n\n\t\t\t\tfor ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {\n\n\t\t\t\t\tif ( j === il ) j = 0;\n\t\t\t\t\tif ( k === il ) k = 0;\n\n\t\t\t\t\t// (j)---(i)---(k)\n\t\t\t\t\toneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );\n\n\t\t\t\t}\n\n\t\t\t\tholesMovements.push( oneHoleMovements );\n\t\t\t\tverticesMovements = verticesMovements.concat( oneHoleMovements );\n\n\t\t\t}\n\n\n\t\t\t// Loop bevelSegments, 1 for the front, 1 for the back\n\n\t\t\tfor ( b = 0; b < bevelSegments; b ++ ) {\n\n\t\t\t\t//for ( b = bevelSegments; b > 0; b -- ) {\n\n\t\t\t\tt = b / bevelSegments;\n\t\t\t\tz = bevelThickness * Math.cos( t * Math.PI / 2 );\n\t\t\t\tbs = bevelSize * Math.sin( t * Math.PI / 2 );\n\n\t\t\t\t// contract shape\n\n\t\t\t\tfor ( i = 0, il = contour.length; i < il; i ++ ) {\n\n\t\t\t\t\tvert = scalePt2( contour[ i ], contourMovements[ i ], bs );\n\n\t\t\t\t\tv( vert.x, vert.y, - z );\n\n\t\t\t\t}\n\n\t\t\t\t// expand holes\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\t\t\t\t\toneHoleMovements = holesMovements[ h ];\n\n\t\t\t\t\tfor ( i = 0, il = ahole.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );\n\n\t\t\t\t\t\tv( vert.x, vert.y, - z );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tbs = bevelSize;\n\n\t\t\t// Back facing vertices\n\n\t\t\tfor ( i = 0; i < vlen; i ++ ) {\n\n\t\t\t\tvert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];\n\n\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\tv( vert.x, vert.y, 0 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );\n\n\t\t\t\t\tnormal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );\n\t\t\t\t\tbinormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );\n\n\t\t\t\t\tposition2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );\n\n\t\t\t\t\tv( position2.x, position2.y, position2.z );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Add stepped vertices...\n\t\t\t// Including front facing vertices\n\n\t\t\tvar s;\n\n\t\t\tfor ( s = 1; s <= steps; s ++ ) {\n\n\t\t\t\tfor ( i = 0; i < vlen; i ++ ) {\n\n\t\t\t\t\tvert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];\n\n\t\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\t\tv( vert.x, vert.y, depth / steps * s );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );\n\n\t\t\t\t\t\tnormal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );\n\t\t\t\t\t\tbinormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );\n\n\t\t\t\t\t\tposition2.copy( extrudePts[ s ] ).add( normal ).add( binormal );\n\n\t\t\t\t\t\tv( position2.x, position2.y, position2.z );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\t// Add bevel segments planes\n\n\t\t\t//for ( b = 1; b <= bevelSegments; b ++ ) {\n\t\t\tfor ( b = bevelSegments - 1; b >= 0; b -- ) {\n\n\t\t\t\tt = b / bevelSegments;\n\t\t\t\tz = bevelThickness * Math.cos( t * Math.PI / 2 );\n\t\t\t\tbs = bevelSize * Math.sin( t * Math.PI / 2 );\n\n\t\t\t\t// contract shape\n\n\t\t\t\tfor ( i = 0, il = contour.length; i < il; i ++ ) {\n\n\t\t\t\t\tvert = scalePt2( contour[ i ], contourMovements[ i ], bs );\n\t\t\t\t\tv( vert.x, vert.y, depth + z );\n\n\t\t\t\t}\n\n\t\t\t\t// expand holes\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\t\t\t\t\toneHoleMovements = holesMovements[ h ];\n\n\t\t\t\t\tfor ( i = 0, il = ahole.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );\n\n\t\t\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\t\t\tv( vert.x, vert.y, depth + z );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tv( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t/* Faces */\n\n\t\t\t// Top and bottom faces\n\n\t\t\tbuildLidFaces();\n\n\t\t\t// Sides faces\n\n\t\t\tbuildSideFaces();\n\n\n\t\t\t///// Internal functions\n\n\t\t\tfunction buildLidFaces() {\n\n\t\t\t\tvar start = verticesArray.length / 3;\n\n\t\t\t\tif ( bevelEnabled ) {\n\n\t\t\t\t\tvar layer = 0; // steps + 1\n\t\t\t\t\tvar offset = vlen * layer;\n\n\t\t\t\t\t// Bottom faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tlayer = steps + bevelSegments * 2;\n\t\t\t\t\toffset = vlen * layer;\n\n\t\t\t\t\t// Top faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// Bottom faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 2 ], face[ 1 ], face[ 0 ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Top faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tscope.addGroup( start, verticesArray.length / 3 - start, 0 );\n\n\t\t\t}\n\n\t\t\t// Create faces for the z-sides of the shape\n\n\t\t\tfunction buildSideFaces() {\n\n\t\t\t\tvar start = verticesArray.length / 3;\n\t\t\t\tvar layeroffset = 0;\n\t\t\t\tsidewalls( contour, layeroffset );\n\t\t\t\tlayeroffset += contour.length;\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\t\t\t\t\tsidewalls( ahole, layeroffset );\n\n\t\t\t\t\t//, true\n\t\t\t\t\tlayeroffset += ahole.length;\n\n\t\t\t\t}\n\n\n\t\t\t\tscope.addGroup( start, verticesArray.length / 3 - start, 1 );\n\n\n\t\t\t}\n\n\t\t\tfunction sidewalls( contour, layeroffset ) {\n\n\t\t\t\tvar j, k;\n\t\t\t\ti = contour.length;\n\n\t\t\t\twhile ( -- i >= 0 ) {\n\n\t\t\t\t\tj = i;\n\t\t\t\t\tk = i - 1;\n\t\t\t\t\tif ( k < 0 ) k = contour.length - 1;\n\n\t\t\t\t\t//console.log('b', i,j, i-1, k,vertices.length);\n\n\t\t\t\t\tvar s = 0,\n\t\t\t\t\t\tsl = steps + bevelSegments * 2;\n\n\t\t\t\t\tfor ( s = 0; s < sl; s ++ ) {\n\n\t\t\t\t\t\tvar slen1 = vlen * s;\n\t\t\t\t\t\tvar slen2 = vlen * ( s + 1 );\n\n\t\t\t\t\t\tvar a = layeroffset + j + slen1,\n\t\t\t\t\t\t\tb = layeroffset + k + slen1,\n\t\t\t\t\t\t\tc = layeroffset + k + slen2,\n\t\t\t\t\t\t\td = layeroffset + j + slen2;\n\n\t\t\t\t\t\tf4( a, b, c, d );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction v( x, y, z ) {\n\n\t\t\t\tplaceholder.push( x );\n\t\t\t\tplaceholder.push( y );\n\t\t\t\tplaceholder.push( z );\n\n\t\t\t}\n\n\n\t\t\tfunction f3( a, b, c ) {\n\n\t\t\t\taddVertex( a );\n\t\t\t\taddVertex( b );\n\t\t\t\taddVertex( c );\n\n\t\t\t\tvar nextIndex = verticesArray.length / 3;\n\t\t\t\tvar uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );\n\n\t\t\t\taddUV( uvs[ 0 ] );\n\t\t\t\taddUV( uvs[ 1 ] );\n\t\t\t\taddUV( uvs[ 2 ] );\n\n\t\t\t}\n\n\t\t\tfunction f4( a, b, c, d ) {\n\n\t\t\t\taddVertex( a );\n\t\t\t\taddVertex( b );\n\t\t\t\taddVertex( d );\n\n\t\t\t\taddVertex( b );\n\t\t\t\taddVertex( c );\n\t\t\t\taddVertex( d );\n\n\n\t\t\t\tvar nextIndex = verticesArray.length / 3;\n\t\t\t\tvar uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );\n\n\t\t\t\taddUV( uvs[ 0 ] );\n\t\t\t\taddUV( uvs[ 1 ] );\n\t\t\t\taddUV( uvs[ 3 ] );\n\n\t\t\t\taddUV( uvs[ 1 ] );\n\t\t\t\taddUV( uvs[ 2 ] );\n\t\t\t\taddUV( uvs[ 3 ] );\n\n\t\t\t}\n\n\t\t\tfunction addVertex( index ) {\n\n\t\t\t\tverticesArray.push( placeholder[ index * 3 + 0 ] );\n\t\t\t\tverticesArray.push( placeholder[ index * 3 + 1 ] );\n\t\t\t\tverticesArray.push( placeholder[ index * 3 + 2 ] );\n\n\t\t\t}\n\n\n\t\t\tfunction addUV( vector2 ) {\n\n\t\t\t\tuvArray.push( vector2.x );\n\t\t\t\tuvArray.push( vector2.y );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;\n\n\tExtrudeBufferGeometry.prototype.toJSON = function () {\n\n\t\tvar data = BufferGeometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\t\tvar options = this.parameters.options;\n\n\t\treturn toJSON( shapes, options, data );\n\n\t};\n\n\t//\n\n\tvar WorldUVGenerator = {\n\n\t\tgenerateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {\n\n\t\t\tvar a_x = vertices[ indexA * 3 ];\n\t\t\tvar a_y = vertices[ indexA * 3 + 1 ];\n\t\t\tvar b_x = vertices[ indexB * 3 ];\n\t\t\tvar b_y = vertices[ indexB * 3 + 1 ];\n\t\t\tvar c_x = vertices[ indexC * 3 ];\n\t\t\tvar c_y = vertices[ indexC * 3 + 1 ];\n\n\t\t\treturn [\n\t\t\t\tnew Vector2( a_x, a_y ),\n\t\t\t\tnew Vector2( b_x, b_y ),\n\t\t\t\tnew Vector2( c_x, c_y )\n\t\t\t];\n\n\t\t},\n\n\t\tgenerateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {\n\n\t\t\tvar a_x = vertices[ indexA * 3 ];\n\t\t\tvar a_y = vertices[ indexA * 3 + 1 ];\n\t\t\tvar a_z = vertices[ indexA * 3 + 2 ];\n\t\t\tvar b_x = vertices[ indexB * 3 ];\n\t\t\tvar b_y = vertices[ indexB * 3 + 1 ];\n\t\t\tvar b_z = vertices[ indexB * 3 + 2 ];\n\t\t\tvar c_x = vertices[ indexC * 3 ];\n\t\t\tvar c_y = vertices[ indexC * 3 + 1 ];\n\t\t\tvar c_z = vertices[ indexC * 3 + 2 ];\n\t\t\tvar d_x = vertices[ indexD * 3 ];\n\t\t\tvar d_y = vertices[ indexD * 3 + 1 ];\n\t\t\tvar d_z = vertices[ indexD * 3 + 2 ];\n\n\t\t\tif ( Math.abs( a_y - b_y ) < 0.01 ) {\n\n\t\t\t\treturn [\n\t\t\t\t\tnew Vector2( a_x, 1 - a_z ),\n\t\t\t\t\tnew Vector2( b_x, 1 - b_z ),\n\t\t\t\t\tnew Vector2( c_x, 1 - c_z ),\n\t\t\t\t\tnew Vector2( d_x, 1 - d_z )\n\t\t\t\t];\n\n\t\t\t} else {\n\n\t\t\t\treturn [\n\t\t\t\t\tnew Vector2( a_y, 1 - a_z ),\n\t\t\t\t\tnew Vector2( b_y, 1 - b_z ),\n\t\t\t\t\tnew Vector2( c_y, 1 - c_z ),\n\t\t\t\t\tnew Vector2( d_y, 1 - d_z )\n\t\t\t\t];\n\n\t\t\t}\n\n\t\t}\n\t};\n\n\tfunction toJSON( shapes, options, data ) {\n\n\t\t//\n\n\t\tdata.shapes = [];\n\n\t\tif ( Array.isArray( shapes ) ) {\n\n\t\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\t\tvar shape = shapes[ i ];\n\n\t\t\t\tdata.shapes.push( shape.uuid );\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tdata.shapes.push( shapes.uuid );\n\n\t\t}\n\n\t\t//\n\n\t\tif ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON();\n\n\t\treturn data;\n\n\t}\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * Text = 3D Text\n\t *\n\t * parameters = {\n\t * font: , // font\n\t *\n\t * size: , // size of the text\n\t * height: , // thickness to extrude text\n\t * curveSegments: , // number of points on the curves\n\t *\n\t * bevelEnabled: , // turn on bevel\n\t * bevelThickness: , // how deep into text bevel goes\n\t * bevelSize: // how far from text outline is bevel\n\t * }\n\t */\n\n\t// TextGeometry\n\n\tfunction TextGeometry( text, parameters ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TextGeometry';\n\n\t\tthis.parameters = {\n\t\t\ttext: text,\n\t\t\tparameters: parameters\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTextGeometry.prototype = Object.create( Geometry.prototype );\n\tTextGeometry.prototype.constructor = TextGeometry;\n\n\t// TextBufferGeometry\n\n\tfunction TextBufferGeometry( text, parameters ) {\n\n\t\tparameters = parameters || {};\n\n\t\tvar font = parameters.font;\n\n\t\tif ( ! ( font && font.isFont ) ) {\n\n\t\t\tconsole.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );\n\t\t\treturn new Geometry();\n\n\t\t}\n\n\t\tvar shapes = font.generateShapes( text, parameters.size );\n\n\t\t// translate parameters to ExtrudeGeometry API\n\n\t\tparameters.depth = parameters.height !== undefined ? parameters.height : 50;\n\n\t\t// defaults\n\n\t\tif ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;\n\t\tif ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;\n\t\tif ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;\n\n\t\tExtrudeBufferGeometry.call( this, shapes, parameters );\n\n\t\tthis.type = 'TextBufferGeometry';\n\n\t}\n\n\tTextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );\n\tTextBufferGeometry.prototype.constructor = TextBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// SphereGeometry\n\n\tfunction SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'SphereGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tSphereGeometry.prototype = Object.create( Geometry.prototype );\n\tSphereGeometry.prototype.constructor = SphereGeometry;\n\n\t// SphereBufferGeometry\n\n\tfunction SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'SphereBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tradius = radius || 1;\n\n\t\twidthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );\n\t\theightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );\n\n\t\tphiStart = phiStart !== undefined ? phiStart : 0;\n\t\tphiLength = phiLength !== undefined ? phiLength : Math.PI * 2;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI;\n\n\t\tvar thetaEnd = thetaStart + thetaLength;\n\n\t\tvar ix, iy;\n\n\t\tvar index = 0;\n\t\tvar grid = [];\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( iy = 0; iy <= heightSegments; iy ++ ) {\n\n\t\t\tvar verticesRow = [];\n\n\t\t\tvar v = iy / heightSegments;\n\n\t\t\tfor ( ix = 0; ix <= widthSegments; ix ++ ) {\n\n\t\t\t\tvar u = ix / widthSegments;\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );\n\t\t\t\tvertex.y = radius * Math.cos( thetaStart + v * thetaLength );\n\t\t\t\tvertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormal.set( vertex.x, vertex.y, vertex.z ).normalize();\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( u, 1 - v );\n\n\t\t\t\tverticesRow.push( index ++ );\n\n\t\t\t}\n\n\t\t\tgrid.push( verticesRow );\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( iy = 0; iy < heightSegments; iy ++ ) {\n\n\t\t\tfor ( ix = 0; ix < widthSegments; ix ++ ) {\n\n\t\t\t\tvar a = grid[ iy ][ ix + 1 ];\n\t\t\t\tvar b = grid[ iy ][ ix ];\n\t\t\t\tvar c = grid[ iy + 1 ][ ix ];\n\t\t\t\tvar d = grid[ iy + 1 ][ ix + 1 ];\n\n\t\t\t\tif ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );\n\t\t\t\tif ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tSphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tSphereBufferGeometry.prototype.constructor = SphereBufferGeometry;\n\n\t/**\n\t * @author Kaleb Murphy\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// RingGeometry\n\n\tfunction RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'RingGeometry';\n\n\t\tthis.parameters = {\n\t\t\tinnerRadius: innerRadius,\n\t\t\touterRadius: outerRadius,\n\t\t\tthetaSegments: thetaSegments,\n\t\t\tphiSegments: phiSegments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tRingGeometry.prototype = Object.create( Geometry.prototype );\n\tRingGeometry.prototype.constructor = RingGeometry;\n\n\t// RingBufferGeometry\n\n\tfunction RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'RingBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tinnerRadius: innerRadius,\n\t\t\touterRadius: outerRadius,\n\t\t\tthetaSegments: thetaSegments,\n\t\t\tphiSegments: phiSegments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tinnerRadius = innerRadius || 0.5;\n\t\touterRadius = outerRadius || 1;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\tthetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;\n\t\tphiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// some helper variables\n\n\t\tvar segment;\n\t\tvar radius = innerRadius;\n\t\tvar radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar j, i;\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( j = 0; j <= phiSegments; j ++ ) {\n\n\t\t\tfor ( i = 0; i <= thetaSegments; i ++ ) {\n\n\t\t\t\t// values are generate from the inside of the ring to the outside\n\n\t\t\t\tsegment = thetaStart + i / thetaSegments * thetaLength;\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = radius * Math.cos( segment );\n\t\t\t\tvertex.y = radius * Math.sin( segment );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormals.push( 0, 0, 1 );\n\n\t\t\t\t// uv\n\n\t\t\t\tuv.x = ( vertex.x / outerRadius + 1 ) / 2;\n\t\t\t\tuv.y = ( vertex.y / outerRadius + 1 ) / 2;\n\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t}\n\n\t\t\t// increase the radius for next row of vertices\n\n\t\t\tradius += radiusStep;\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( j = 0; j < phiSegments; j ++ ) {\n\n\t\t\tvar thetaSegmentLevel = j * ( thetaSegments + 1 );\n\n\t\t\tfor ( i = 0; i < thetaSegments; i ++ ) {\n\n\t\t\t\tsegment = i + thetaSegmentLevel;\n\n\t\t\t\tvar a = segment;\n\t\t\t\tvar b = segment + thetaSegments + 1;\n\t\t\t\tvar c = segment + thetaSegments + 2;\n\t\t\t\tvar d = segment + 1;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tRingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tRingBufferGeometry.prototype.constructor = RingBufferGeometry;\n\n\t/**\n\t * @author astrodud / http://astrodud.isgreat.org/\n\t * @author zz85 / https://github.com/zz85\n\t * @author bhouston / http://clara.io\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// LatheGeometry\n\n\tfunction LatheGeometry( points, segments, phiStart, phiLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'LatheGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpoints: points,\n\t\t\tsegments: segments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tLatheGeometry.prototype = Object.create( Geometry.prototype );\n\tLatheGeometry.prototype.constructor = LatheGeometry;\n\n\t// LatheBufferGeometry\n\n\tfunction LatheBufferGeometry( points, segments, phiStart, phiLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'LatheBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpoints: points,\n\t\t\tsegments: segments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength\n\t\t};\n\n\t\tsegments = Math.floor( segments ) || 12;\n\t\tphiStart = phiStart || 0;\n\t\tphiLength = phiLength || Math.PI * 2;\n\n\t\t// clamp phiLength so it's in range of [ 0, 2PI ]\n\n\t\tphiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );\n\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar base;\n\t\tvar inverseSegments = 1.0 / segments;\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar i, j;\n\n\t\t// generate vertices and uvs\n\n\t\tfor ( i = 0; i <= segments; i ++ ) {\n\n\t\t\tvar phi = phiStart + i * inverseSegments * phiLength;\n\n\t\t\tvar sin = Math.sin( phi );\n\t\t\tvar cos = Math.cos( phi );\n\n\t\t\tfor ( j = 0; j <= ( points.length - 1 ); j ++ ) {\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = points[ j ].x * sin;\n\t\t\t\tvertex.y = points[ j ].y;\n\t\t\t\tvertex.z = points[ j ].x * cos;\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuv.x = i / segments;\n\t\t\t\tuv.y = j / ( points.length - 1 );\n\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\n\t\t\t}\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( i = 0; i < segments; i ++ ) {\n\n\t\t\tfor ( j = 0; j < ( points.length - 1 ); j ++ ) {\n\n\t\t\t\tbase = j + i * points.length;\n\n\t\t\t\tvar a = base;\n\t\t\t\tvar b = base + points.length;\n\t\t\t\tvar c = base + points.length + 1;\n\t\t\t\tvar d = base + 1;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\t// generate normals\n\n\t\tthis.computeVertexNormals();\n\n\t\t// if the geometry is closed, we need to average the normals along the seam.\n\t\t// because the corresponding vertices are identical (but still have different UVs).\n\n\t\tif ( phiLength === Math.PI * 2 ) {\n\n\t\t\tvar normals = this.attributes.normal.array;\n\t\t\tvar n1 = new Vector3();\n\t\t\tvar n2 = new Vector3();\n\t\t\tvar n = new Vector3();\n\n\t\t\t// this is the buffer offset for the last line of vertices\n\n\t\t\tbase = segments * points.length * 3;\n\n\t\t\tfor ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {\n\n\t\t\t\t// select the normal of the vertex in the first line\n\n\t\t\t\tn1.x = normals[ j + 0 ];\n\t\t\t\tn1.y = normals[ j + 1 ];\n\t\t\t\tn1.z = normals[ j + 2 ];\n\n\t\t\t\t// select the normal of the vertex in the last line\n\n\t\t\t\tn2.x = normals[ base + j + 0 ];\n\t\t\t\tn2.y = normals[ base + j + 1 ];\n\t\t\t\tn2.z = normals[ base + j + 2 ];\n\n\t\t\t\t// average normals\n\n\t\t\t\tn.addVectors( n1, n2 ).normalize();\n\n\t\t\t\t// assign the new values to both normals\n\n\t\t\t\tnormals[ j + 0 ] = normals[ base + j + 0 ] = n.x;\n\t\t\t\tnormals[ j + 1 ] = normals[ base + j + 1 ] = n.y;\n\t\t\t\tnormals[ j + 2 ] = normals[ base + j + 2 ] = n.z;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tLatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tLatheBufferGeometry.prototype.constructor = LatheBufferGeometry;\n\n\t/**\n\t * @author jonobr1 / http://jonobr1.com\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// ShapeGeometry\n\n\tfunction ShapeGeometry( shapes, curveSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ShapeGeometry';\n\n\t\tif ( typeof curveSegments === 'object' ) {\n\n\t\t\tconsole.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );\n\n\t\t\tcurveSegments = curveSegments.curveSegments;\n\n\t\t}\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\tcurveSegments: curveSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tShapeGeometry.prototype = Object.create( Geometry.prototype );\n\tShapeGeometry.prototype.constructor = ShapeGeometry;\n\n\tShapeGeometry.prototype.toJSON = function () {\n\n\t\tvar data = Geometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\n\t\treturn toJSON$1( shapes, data );\n\n\t};\n\n\t// ShapeBufferGeometry\n\n\tfunction ShapeBufferGeometry( shapes, curveSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'ShapeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\tcurveSegments: curveSegments\n\t\t};\n\n\t\tcurveSegments = curveSegments || 12;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar groupStart = 0;\n\t\tvar groupCount = 0;\n\n\t\t// allow single and array values for \"shapes\" parameter\n\n\t\tif ( Array.isArray( shapes ) === false ) {\n\n\t\t\taddShape( shapes );\n\n\t\t} else {\n\n\t\t\tfor ( var i = 0; i < shapes.length; i ++ ) {\n\n\t\t\t\taddShape( shapes[ i ] );\n\n\t\t\t\tthis.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support\n\n\t\t\t\tgroupStart += groupCount;\n\t\t\t\tgroupCount = 0;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\n\t\t// helper functions\n\n\t\tfunction addShape( shape ) {\n\n\t\t\tvar i, l, shapeHole;\n\n\t\t\tvar indexOffset = vertices.length / 3;\n\t\t\tvar points = shape.extractPoints( curveSegments );\n\n\t\t\tvar shapeVertices = points.shape;\n\t\t\tvar shapeHoles = points.holes;\n\n\t\t\t// check direction of vertices\n\n\t\t\tif ( ShapeUtils.isClockWise( shapeVertices ) === false ) {\n\n\t\t\t\tshapeVertices = shapeVertices.reverse();\n\n\t\t\t\t// also check if holes are in the opposite direction\n\n\t\t\t\tfor ( i = 0, l = shapeHoles.length; i < l; i ++ ) {\n\n\t\t\t\t\tshapeHole = shapeHoles[ i ];\n\n\t\t\t\t\tif ( ShapeUtils.isClockWise( shapeHole ) === true ) {\n\n\t\t\t\t\t\tshapeHoles[ i ] = shapeHole.reverse();\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );\n\n\t\t\t// join vertices of inner and outer paths to a single array\n\n\t\t\tfor ( i = 0, l = shapeHoles.length; i < l; i ++ ) {\n\n\t\t\t\tshapeHole = shapeHoles[ i ];\n\t\t\t\tshapeVertices = shapeVertices.concat( shapeHole );\n\n\t\t\t}\n\n\t\t\t// vertices, normals, uvs\n\n\t\t\tfor ( i = 0, l = shapeVertices.length; i < l; i ++ ) {\n\n\t\t\t\tvar vertex = shapeVertices[ i ];\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, 0 );\n\t\t\t\tnormals.push( 0, 0, 1 );\n\t\t\t\tuvs.push( vertex.x, vertex.y ); // world uvs\n\n\t\t\t}\n\n\t\t\t// incides\n\n\t\t\tfor ( i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tvar a = face[ 0 ] + indexOffset;\n\t\t\t\tvar b = face[ 1 ] + indexOffset;\n\t\t\t\tvar c = face[ 2 ] + indexOffset;\n\n\t\t\t\tindices.push( a, b, c );\n\t\t\t\tgroupCount += 3;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;\n\n\tShapeBufferGeometry.prototype.toJSON = function () {\n\n\t\tvar data = BufferGeometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\n\t\treturn toJSON$1( shapes, data );\n\n\t};\n\n\t//\n\n\tfunction toJSON$1( shapes, data ) {\n\n\t\tdata.shapes = [];\n\n\t\tif ( Array.isArray( shapes ) ) {\n\n\t\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\t\tvar shape = shapes[ i ];\n\n\t\t\t\tdata.shapes.push( shape.uuid );\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tdata.shapes.push( shapes.uuid );\n\n\t\t}\n\n\t\treturn data;\n\n\t}\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction EdgesGeometry( geometry, thresholdAngle ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'EdgesGeometry';\n\n\t\tthis.parameters = {\n\t\t\tthresholdAngle: thresholdAngle\n\t\t};\n\n\t\tthresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;\n\n\t\t// buffer\n\n\t\tvar vertices = [];\n\n\t\t// helper variables\n\n\t\tvar thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );\n\t\tvar edge = [ 0, 0 ], edges = {}, edge1, edge2;\n\t\tvar key, keys = [ 'a', 'b', 'c' ];\n\n\t\t// prepare source geometry\n\n\t\tvar geometry2;\n\n\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\tgeometry2 = new Geometry();\n\t\t\tgeometry2.fromBufferGeometry( geometry );\n\n\t\t} else {\n\n\t\t\tgeometry2 = geometry.clone();\n\n\t\t}\n\n\t\tgeometry2.mergeVertices();\n\t\tgeometry2.computeFaceNormals();\n\n\t\tvar sourceVertices = geometry2.vertices;\n\t\tvar faces = geometry2.faces;\n\n\t\t// now create a data structure where each entry represents an edge with its adjoining faces\n\n\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\tvar face = faces[ i ];\n\n\t\t\tfor ( var j = 0; j < 3; j ++ ) {\n\n\t\t\t\tedge1 = face[ keys[ j ] ];\n\t\t\t\tedge2 = face[ keys[ ( j + 1 ) % 3 ] ];\n\t\t\t\tedge[ 0 ] = Math.min( edge1, edge2 );\n\t\t\t\tedge[ 1 ] = Math.max( edge1, edge2 );\n\n\t\t\t\tkey = edge[ 0 ] + ',' + edge[ 1 ];\n\n\t\t\t\tif ( edges[ key ] === undefined ) {\n\n\t\t\t\t\tedges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };\n\n\t\t\t\t} else {\n\n\t\t\t\t\tedges[ key ].face2 = i;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate vertices\n\n\t\tfor ( key in edges ) {\n\n\t\t\tvar e = edges[ key ];\n\n\t\t\t// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.\n\n\t\t\tif ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {\n\n\t\t\t\tvar vertex = sourceVertices[ e.index1 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\tvertex = sourceVertices[ e.index2 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\n\t}\n\n\tEdgesGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tEdgesGeometry.prototype.constructor = EdgesGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// CylinderGeometry\n\n\tfunction CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'CylinderGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradiusTop: radiusTop,\n\t\t\tradiusBottom: radiusBottom,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tCylinderGeometry.prototype = Object.create( Geometry.prototype );\n\tCylinderGeometry.prototype.constructor = CylinderGeometry;\n\n\t// CylinderBufferGeometry\n\n\tfunction CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'CylinderBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradiusTop: radiusTop,\n\t\t\tradiusBottom: radiusBottom,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tvar scope = this;\n\n\t\tradiusTop = radiusTop !== undefined ? radiusTop : 1;\n\t\tradiusBottom = radiusBottom !== undefined ? radiusBottom : 1;\n\t\theight = height || 1;\n\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\theightSegments = Math.floor( heightSegments ) || 1;\n\n\t\topenEnded = openEnded !== undefined ? openEnded : false;\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0.0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar index = 0;\n\t\tvar indexArray = [];\n\t\tvar halfHeight = height / 2;\n\t\tvar groupStart = 0;\n\n\t\t// generate geometry\n\n\t\tgenerateTorso();\n\n\t\tif ( openEnded === false ) {\n\n\t\t\tif ( radiusTop > 0 ) generateCap( true );\n\t\t\tif ( radiusBottom > 0 ) generateCap( false );\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\tfunction generateTorso() {\n\n\t\t\tvar x, y;\n\t\t\tvar normal = new Vector3();\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tvar groupCount = 0;\n\n\t\t\t// this will be used to calculate the normal\n\t\t\tvar slope = ( radiusBottom - radiusTop ) / height;\n\n\t\t\t// generate vertices, normals and uvs\n\n\t\t\tfor ( y = 0; y <= heightSegments; y ++ ) {\n\n\t\t\t\tvar indexRow = [];\n\n\t\t\t\tvar v = y / heightSegments;\n\n\t\t\t\t// calculate the radius of the current row\n\n\t\t\t\tvar radius = v * ( radiusBottom - radiusTop ) + radiusTop;\n\n\t\t\t\tfor ( x = 0; x <= radialSegments; x ++ ) {\n\n\t\t\t\t\tvar u = x / radialSegments;\n\n\t\t\t\t\tvar theta = u * thetaLength + thetaStart;\n\n\t\t\t\t\tvar sinTheta = Math.sin( theta );\n\t\t\t\t\tvar cosTheta = Math.cos( theta );\n\n\t\t\t\t\t// vertex\n\n\t\t\t\t\tvertex.x = radius * sinTheta;\n\t\t\t\t\tvertex.y = - v * height + halfHeight;\n\t\t\t\t\tvertex.z = radius * cosTheta;\n\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\t// normal\n\n\t\t\t\t\tnormal.set( sinTheta, slope, cosTheta ).normalize();\n\t\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t\t// uv\n\n\t\t\t\t\tuvs.push( u, 1 - v );\n\n\t\t\t\t\t// save index of vertex in respective row\n\n\t\t\t\t\tindexRow.push( index ++ );\n\n\t\t\t\t}\n\n\t\t\t\t// now save vertices of the row in our index array\n\n\t\t\t\tindexArray.push( indexRow );\n\n\t\t\t}\n\n\t\t\t// generate indices\n\n\t\t\tfor ( x = 0; x < radialSegments; x ++ ) {\n\n\t\t\t\tfor ( y = 0; y < heightSegments; y ++ ) {\n\n\t\t\t\t\t// we use the index array to access the correct indices\n\n\t\t\t\t\tvar a = indexArray[ y ][ x ];\n\t\t\t\t\tvar b = indexArray[ y + 1 ][ x ];\n\t\t\t\t\tvar c = indexArray[ y + 1 ][ x + 1 ];\n\t\t\t\t\tvar d = indexArray[ y ][ x + 1 ];\n\n\t\t\t\t\t// faces\n\n\t\t\t\t\tindices.push( a, b, d );\n\t\t\t\t\tindices.push( b, c, d );\n\n\t\t\t\t\t// update group counter\n\n\t\t\t\t\tgroupCount += 6;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\n\t\t\tscope.addGroup( groupStart, groupCount, 0 );\n\n\t\t\t// calculate new start value for groups\n\n\t\t\tgroupStart += groupCount;\n\n\t\t}\n\n\t\tfunction generateCap( top ) {\n\n\t\t\tvar x, centerIndexStart, centerIndexEnd;\n\n\t\t\tvar uv = new Vector2();\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tvar groupCount = 0;\n\n\t\t\tvar radius = ( top === true ) ? radiusTop : radiusBottom;\n\t\t\tvar sign = ( top === true ) ? 1 : - 1;\n\n\t\t\t// save the index of the first center vertex\n\t\t\tcenterIndexStart = index;\n\n\t\t\t// first we generate the center vertex data of the cap.\n\t\t\t// because the geometry needs one set of uvs per face,\n\t\t\t// we must generate a center vertex per face/segment\n\n\t\t\tfor ( x = 1; x <= radialSegments; x ++ ) {\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertices.push( 0, halfHeight * sign, 0 );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormals.push( 0, sign, 0 );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( 0.5, 0.5 );\n\n\t\t\t\t// increase index\n\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t\t// save the index of the last center vertex\n\n\t\t\tcenterIndexEnd = index;\n\n\t\t\t// now we generate the surrounding vertices, normals and uvs\n\n\t\t\tfor ( x = 0; x <= radialSegments; x ++ ) {\n\n\t\t\t\tvar u = x / radialSegments;\n\t\t\t\tvar theta = u * thetaLength + thetaStart;\n\n\t\t\t\tvar cosTheta = Math.cos( theta );\n\t\t\t\tvar sinTheta = Math.sin( theta );\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = radius * sinTheta;\n\t\t\t\tvertex.y = halfHeight * sign;\n\t\t\t\tvertex.z = radius * cosTheta;\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormals.push( 0, sign, 0 );\n\n\t\t\t\t// uv\n\n\t\t\t\tuv.x = ( cosTheta * 0.5 ) + 0.5;\n\t\t\t\tuv.y = ( sinTheta * 0.5 * sign ) + 0.5;\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\t// increase index\n\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t\t// generate indices\n\n\t\t\tfor ( x = 0; x < radialSegments; x ++ ) {\n\n\t\t\t\tvar c = centerIndexStart + x;\n\t\t\t\tvar i = centerIndexEnd + x;\n\n\t\t\t\tif ( top === true ) {\n\n\t\t\t\t\t// face top\n\n\t\t\t\t\tindices.push( i, i + 1, c );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// face bottom\n\n\t\t\t\t\tindices.push( i + 1, i, c );\n\n\t\t\t\t}\n\n\t\t\t\tgroupCount += 3;\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\n\t\t\tscope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );\n\n\t\t\t// calculate new start value for groups\n\n\t\t\tgroupStart += groupCount;\n\n\t\t}\n\n\t}\n\n\tCylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tCylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;\n\n\t/**\n\t * @author abelnation / http://github.com/abelnation\n\t */\n\n\t// ConeGeometry\n\n\tfunction ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tCylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );\n\n\t\tthis.type = 'ConeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t}\n\n\tConeGeometry.prototype = Object.create( CylinderGeometry.prototype );\n\tConeGeometry.prototype.constructor = ConeGeometry;\n\n\t// ConeBufferGeometry\n\n\tfunction ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tCylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );\n\n\t\tthis.type = 'ConeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t}\n\n\tConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );\n\tConeBufferGeometry.prototype.constructor = ConeBufferGeometry;\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t * @author Mugen87 / https://github.com/Mugen87\n\t * @author hughes\n\t */\n\n\t// CircleGeometry\n\n\tfunction CircleGeometry( radius, segments, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'CircleGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tsegments: segments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tCircleGeometry.prototype = Object.create( Geometry.prototype );\n\tCircleGeometry.prototype.constructor = CircleGeometry;\n\n\t// CircleBufferGeometry\n\n\tfunction CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'CircleBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tsegments: segments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tradius = radius || 1;\n\t\tsegments = segments !== undefined ? Math.max( 3, segments ) : 8;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar i, s;\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\n\t\t// center point\n\n\t\tvertices.push( 0, 0, 0 );\n\t\tnormals.push( 0, 0, 1 );\n\t\tuvs.push( 0.5, 0.5 );\n\n\t\tfor ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {\n\n\t\t\tvar segment = thetaStart + s / segments * thetaLength;\n\n\t\t\t// vertex\n\n\t\t\tvertex.x = radius * Math.cos( segment );\n\t\t\tvertex.y = radius * Math.sin( segment );\n\n\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t// normal\n\n\t\t\tnormals.push( 0, 0, 1 );\n\n\t\t\t// uvs\n\n\t\t\tuv.x = ( vertices[ i ] / radius + 1 ) / 2;\n\t\t\tuv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;\n\n\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\tindices.push( i, i + 1, 0 );\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tCircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tCircleBufferGeometry.prototype.constructor = CircleBufferGeometry;\n\n\n\n\tvar Geometries = /*#__PURE__*/Object.freeze({\n\t\tWireframeGeometry: WireframeGeometry,\n\t\tParametricGeometry: ParametricGeometry,\n\t\tParametricBufferGeometry: ParametricBufferGeometry,\n\t\tTetrahedronGeometry: TetrahedronGeometry,\n\t\tTetrahedronBufferGeometry: TetrahedronBufferGeometry,\n\t\tOctahedronGeometry: OctahedronGeometry,\n\t\tOctahedronBufferGeometry: OctahedronBufferGeometry,\n\t\tIcosahedronGeometry: IcosahedronGeometry,\n\t\tIcosahedronBufferGeometry: IcosahedronBufferGeometry,\n\t\tDodecahedronGeometry: DodecahedronGeometry,\n\t\tDodecahedronBufferGeometry: DodecahedronBufferGeometry,\n\t\tPolyhedronGeometry: PolyhedronGeometry,\n\t\tPolyhedronBufferGeometry: PolyhedronBufferGeometry,\n\t\tTubeGeometry: TubeGeometry,\n\t\tTubeBufferGeometry: TubeBufferGeometry,\n\t\tTorusKnotGeometry: TorusKnotGeometry,\n\t\tTorusKnotBufferGeometry: TorusKnotBufferGeometry,\n\t\tTorusGeometry: TorusGeometry,\n\t\tTorusBufferGeometry: TorusBufferGeometry,\n\t\tTextGeometry: TextGeometry,\n\t\tTextBufferGeometry: TextBufferGeometry,\n\t\tSphereGeometry: SphereGeometry,\n\t\tSphereBufferGeometry: SphereBufferGeometry,\n\t\tRingGeometry: RingGeometry,\n\t\tRingBufferGeometry: RingBufferGeometry,\n\t\tPlaneGeometry: PlaneGeometry,\n\t\tPlaneBufferGeometry: PlaneBufferGeometry,\n\t\tLatheGeometry: LatheGeometry,\n\t\tLatheBufferGeometry: LatheBufferGeometry,\n\t\tShapeGeometry: ShapeGeometry,\n\t\tShapeBufferGeometry: ShapeBufferGeometry,\n\t\tExtrudeGeometry: ExtrudeGeometry,\n\t\tExtrudeBufferGeometry: ExtrudeBufferGeometry,\n\t\tEdgesGeometry: EdgesGeometry,\n\t\tConeGeometry: ConeGeometry,\n\t\tConeBufferGeometry: ConeBufferGeometry,\n\t\tCylinderGeometry: CylinderGeometry,\n\t\tCylinderBufferGeometry: CylinderBufferGeometry,\n\t\tCircleGeometry: CircleGeometry,\n\t\tCircleBufferGeometry: CircleBufferGeometry,\n\t\tBoxGeometry: BoxGeometry,\n\t\tBoxBufferGeometry: BoxBufferGeometry\n\t});\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * parameters = {\n\t * color: \n\t * }\n\t */\n\n\tfunction ShadowMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'ShadowMaterial';\n\n\t\tthis.color = new Color( 0x000000 );\n\t\tthis.transparent = true;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tShadowMaterial.prototype = Object.create( Material.prototype );\n\tShadowMaterial.prototype.constructor = ShadowMaterial;\n\n\tShadowMaterial.prototype.isShadowMaterial = true;\n\n\tShadowMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction RawShaderMaterial( parameters ) {\n\n\t\tShaderMaterial.call( this, parameters );\n\n\t\tthis.type = 'RawShaderMaterial';\n\n\t}\n\n\tRawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );\n\tRawShaderMaterial.prototype.constructor = RawShaderMaterial;\n\n\tRawShaderMaterial.prototype.isRawShaderMaterial = true;\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * color: ,\n\t * roughness: ,\n\t * metalness: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalMapType: THREE.TangentSpaceNormalMap,\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * roughnessMap: new THREE.Texture( ),\n\t *\n\t * metalnessMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * envMapIntensity: \n\t *\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshStandardMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.defines = { 'STANDARD': '' };\n\n\t\tthis.type = 'MeshStandardMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\t\tthis.roughness = 0.5;\n\t\tthis.metalness = 0.5;\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalMapType = TangentSpaceNormalMap;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.roughnessMap = null;\n\n\t\tthis.metalnessMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.envMapIntensity = 1.0;\n\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshStandardMaterial.prototype = Object.create( Material.prototype );\n\tMeshStandardMaterial.prototype.constructor = MeshStandardMaterial;\n\n\tMeshStandardMaterial.prototype.isMeshStandardMaterial = true;\n\n\tMeshStandardMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.defines = { 'STANDARD': '' };\n\n\t\tthis.color.copy( source.color );\n\t\tthis.roughness = source.roughness;\n\t\tthis.metalness = source.metalness;\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalMapType = source.normalMapType;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.roughnessMap = source.roughnessMap;\n\n\t\tthis.metalnessMap = source.metalnessMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.envMapIntensity = source.envMapIntensity;\n\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * reflectivity: \n\t * }\n\t */\n\n\tfunction MeshPhysicalMaterial( parameters ) {\n\n\t\tMeshStandardMaterial.call( this );\n\n\t\tthis.defines = { 'PHYSICAL': '' };\n\n\t\tthis.type = 'MeshPhysicalMaterial';\n\n\t\tthis.reflectivity = 0.5; // maps to F0 = 0.04\n\n\t\tthis.clearCoat = 0.0;\n\t\tthis.clearCoatRoughness = 0.0;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );\n\tMeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;\n\n\tMeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;\n\n\tMeshPhysicalMaterial.prototype.copy = function ( source ) {\n\n\t\tMeshStandardMaterial.prototype.copy.call( this, source );\n\n\t\tthis.defines = { 'PHYSICAL': '' };\n\n\t\tthis.reflectivity = source.reflectivity;\n\n\t\tthis.clearCoat = source.clearCoat;\n\t\tthis.clearCoatRoughness = source.clearCoatRoughness;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * specular: ,\n\t * shininess: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalMapType: THREE.TangentSpaceNormalMap,\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshPhongMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshPhongMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\t\tthis.specular = new Color( 0x111111 );\n\t\tthis.shininess = 30;\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalMapType = TangentSpaceNormalMap;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshPhongMaterial.prototype = Object.create( Material.prototype );\n\tMeshPhongMaterial.prototype.constructor = MeshPhongMaterial;\n\n\tMeshPhongMaterial.prototype.isMeshPhongMaterial = true;\n\n\tMeshPhongMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\t\tthis.specular.copy( source.specular );\n\t\tthis.shininess = source.shininess;\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalMapType = source.normalMapType;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author takahirox / http://github.com/takahirox\n\t *\n\t * parameters = {\n\t * gradientMap: new THREE.Texture( )\n\t * }\n\t */\n\n\tfunction MeshToonMaterial( parameters ) {\n\n\t\tMeshPhongMaterial.call( this );\n\n\t\tthis.defines = { 'TOON': '' };\n\n\t\tthis.type = 'MeshToonMaterial';\n\n\t\tthis.gradientMap = null;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );\n\tMeshToonMaterial.prototype.constructor = MeshToonMaterial;\n\n\tMeshToonMaterial.prototype.isMeshToonMaterial = true;\n\n\tMeshToonMaterial.prototype.copy = function ( source ) {\n\n\t\tMeshPhongMaterial.prototype.copy.call( this, source );\n\n\t\tthis.gradientMap = source.gradientMap;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * opacity: ,\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalMapType: THREE.TangentSpaceNormalMap,\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: \n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshNormalMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshNormalMaterial';\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalMapType = TangentSpaceNormalMap;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshNormalMaterial.prototype = Object.create( Material.prototype );\n\tMeshNormalMaterial.prototype.constructor = MeshNormalMaterial;\n\n\tMeshNormalMaterial.prototype.isMeshNormalMaterial = true;\n\n\tMeshNormalMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalMapType = source.normalMapType;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshLambertMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshLambertMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshLambertMaterial.prototype = Object.create( Material.prototype );\n\tMeshLambertMaterial.prototype.constructor = MeshLambertMaterial;\n\n\tMeshLambertMaterial.prototype.isMeshLambertMaterial = true;\n\n\tMeshLambertMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * linewidth: ,\n\t *\n\t * scale: ,\n\t * dashSize: ,\n\t * gapSize: \n\t * }\n\t */\n\n\tfunction LineDashedMaterial( parameters ) {\n\n\t\tLineBasicMaterial.call( this );\n\n\t\tthis.type = 'LineDashedMaterial';\n\n\t\tthis.scale = 1;\n\t\tthis.dashSize = 3;\n\t\tthis.gapSize = 1;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tLineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype );\n\tLineDashedMaterial.prototype.constructor = LineDashedMaterial;\n\n\tLineDashedMaterial.prototype.isLineDashedMaterial = true;\n\n\tLineDashedMaterial.prototype.copy = function ( source ) {\n\n\t\tLineBasicMaterial.prototype.copy.call( this, source );\n\n\t\tthis.scale = source.scale;\n\t\tthis.dashSize = source.dashSize;\n\t\tthis.gapSize = source.gapSize;\n\n\t\treturn this;\n\n\t};\n\n\n\n\tvar Materials = /*#__PURE__*/Object.freeze({\n\t\tShadowMaterial: ShadowMaterial,\n\t\tSpriteMaterial: SpriteMaterial,\n\t\tRawShaderMaterial: RawShaderMaterial,\n\t\tShaderMaterial: ShaderMaterial,\n\t\tPointsMaterial: PointsMaterial,\n\t\tMeshPhysicalMaterial: MeshPhysicalMaterial,\n\t\tMeshStandardMaterial: MeshStandardMaterial,\n\t\tMeshPhongMaterial: MeshPhongMaterial,\n\t\tMeshToonMaterial: MeshToonMaterial,\n\t\tMeshNormalMaterial: MeshNormalMaterial,\n\t\tMeshLambertMaterial: MeshLambertMaterial,\n\t\tMeshDepthMaterial: MeshDepthMaterial,\n\t\tMeshDistanceMaterial: MeshDistanceMaterial,\n\t\tMeshBasicMaterial: MeshBasicMaterial,\n\t\tLineDashedMaterial: LineDashedMaterial,\n\t\tLineBasicMaterial: LineBasicMaterial,\n\t\tMaterial: Material\n\t});\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar Cache = {\n\n\t\tenabled: false,\n\n\t\tfiles: {},\n\n\t\tadd: function ( key, file ) {\n\n\t\t\tif ( this.enabled === false ) return;\n\n\t\t\t// console.log( 'THREE.Cache', 'Adding key:', key );\n\n\t\t\tthis.files[ key ] = file;\n\n\t\t},\n\n\t\tget: function ( key ) {\n\n\t\t\tif ( this.enabled === false ) return;\n\n\t\t\t// console.log( 'THREE.Cache', 'Checking key:', key );\n\n\t\t\treturn this.files[ key ];\n\n\t\t},\n\n\t\tremove: function ( key ) {\n\n\t\t\tdelete this.files[ key ];\n\n\t\t},\n\n\t\tclear: function () {\n\n\t\t\tthis.files = {};\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LoadingManager( onLoad, onProgress, onError ) {\n\n\t\tvar scope = this;\n\n\t\tvar isLoading = false;\n\t\tvar itemsLoaded = 0;\n\t\tvar itemsTotal = 0;\n\t\tvar urlModifier = undefined;\n\n\t\tthis.onStart = undefined;\n\t\tthis.onLoad = onLoad;\n\t\tthis.onProgress = onProgress;\n\t\tthis.onError = onError;\n\n\t\tthis.itemStart = function ( url ) {\n\n\t\t\titemsTotal ++;\n\n\t\t\tif ( isLoading === false ) {\n\n\t\t\t\tif ( scope.onStart !== undefined ) {\n\n\t\t\t\t\tscope.onStart( url, itemsLoaded, itemsTotal );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tisLoading = true;\n\n\t\t};\n\n\t\tthis.itemEnd = function ( url ) {\n\n\t\t\titemsLoaded ++;\n\n\t\t\tif ( scope.onProgress !== undefined ) {\n\n\t\t\t\tscope.onProgress( url, itemsLoaded, itemsTotal );\n\n\t\t\t}\n\n\t\t\tif ( itemsLoaded === itemsTotal ) {\n\n\t\t\t\tisLoading = false;\n\n\t\t\t\tif ( scope.onLoad !== undefined ) {\n\n\t\t\t\t\tscope.onLoad();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.itemError = function ( url ) {\n\n\t\t\tif ( scope.onError !== undefined ) {\n\n\t\t\t\tscope.onError( url );\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.resolveURL = function ( url ) {\n\n\t\t\tif ( urlModifier ) {\n\n\t\t\t\treturn urlModifier( url );\n\n\t\t\t}\n\n\t\t\treturn url;\n\n\t\t};\n\n\t\tthis.setURLModifier = function ( transform ) {\n\n\t\t\turlModifier = transform;\n\t\t\treturn this;\n\n\t\t};\n\n\t}\n\n\tvar DefaultLoadingManager = new LoadingManager();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar loading = {};\n\n\tfunction FileLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( FileLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( url === undefined ) url = '';\n\n\t\t\tif ( this.path !== undefined ) url = this.path + url;\n\n\t\t\turl = this.manager.resolveURL( url );\n\n\t\t\tvar scope = this;\n\n\t\t\tvar cached = Cache.get( url );\n\n\t\t\tif ( cached !== undefined ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\tsetTimeout( function () {\n\n\t\t\t\t\tif ( onLoad ) onLoad( cached );\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, 0 );\n\n\t\t\t\treturn cached;\n\n\t\t\t}\n\n\t\t\t// Check if request is duplicate\n\n\t\t\tif ( loading[ url ] !== undefined ) {\n\n\t\t\t\tloading[ url ].push( {\n\n\t\t\t\t\tonLoad: onLoad,\n\t\t\t\t\tonProgress: onProgress,\n\t\t\t\t\tonError: onError\n\n\t\t\t\t} );\n\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t// Check for data: URI\n\t\t\tvar dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;\n\t\t\tvar dataUriRegexResult = url.match( dataUriRegex );\n\n\t\t\t// Safari can not handle Data URIs through XMLHttpRequest so process manually\n\t\t\tif ( dataUriRegexResult ) {\n\n\t\t\t\tvar mimeType = dataUriRegexResult[ 1 ];\n\t\t\t\tvar isBase64 = !! dataUriRegexResult[ 2 ];\n\t\t\t\tvar data = dataUriRegexResult[ 3 ];\n\n\t\t\t\tdata = window.decodeURIComponent( data );\n\n\t\t\t\tif ( isBase64 ) data = window.atob( data );\n\n\t\t\t\ttry {\n\n\t\t\t\t\tvar response;\n\t\t\t\t\tvar responseType = ( this.responseType || '' ).toLowerCase();\n\n\t\t\t\t\tswitch ( responseType ) {\n\n\t\t\t\t\t\tcase 'arraybuffer':\n\t\t\t\t\t\tcase 'blob':\n\n\t\t\t\t\t\t\tvar view = new Uint8Array( data.length );\n\n\t\t\t\t\t\t\tfor ( var i = 0; i < data.length; i ++ ) {\n\n\t\t\t\t\t\t\t\tview[ i ] = data.charCodeAt( i );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( responseType === 'blob' ) {\n\n\t\t\t\t\t\t\t\tresponse = new Blob( [ view.buffer ], { type: mimeType } );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tresponse = view.buffer;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'document':\n\n\t\t\t\t\t\t\tvar parser = new DOMParser();\n\t\t\t\t\t\t\tresponse = parser.parseFromString( data, mimeType );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'json':\n\n\t\t\t\t\t\t\tresponse = JSON.parse( data );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault: // 'text' or other\n\n\t\t\t\t\t\t\tresponse = data;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Wait for next browser tick like standard XMLHttpRequest event dispatching does\n\t\t\t\t\twindow.setTimeout( function () {\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( response );\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t\t}, 0 );\n\n\t\t\t\t} catch ( error ) {\n\n\t\t\t\t\t// Wait for next browser tick like standard XMLHttpRequest event dispatching does\n\t\t\t\t\twindow.setTimeout( function () {\n\n\t\t\t\t\t\tif ( onError ) onError( error );\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t\t}, 0 );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// Initialise array for duplicate requests\n\n\t\t\t\tloading[ url ] = [];\n\n\t\t\t\tloading[ url ].push( {\n\n\t\t\t\t\tonLoad: onLoad,\n\t\t\t\t\tonProgress: onProgress,\n\t\t\t\t\tonError: onError\n\n\t\t\t\t} );\n\n\t\t\t\tvar request = new XMLHttpRequest();\n\n\t\t\t\trequest.open( 'GET', url, true );\n\n\t\t\t\trequest.addEventListener( 'load', function ( event ) {\n\n\t\t\t\t\tvar response = this.response;\n\n\t\t\t\t\tCache.add( url, response );\n\n\t\t\t\t\tvar callbacks = loading[ url ];\n\n\t\t\t\t\tdelete loading[ url ];\n\n\t\t\t\t\tif ( this.status === 200 || this.status === 0 ) {\n\n\t\t\t\t\t\t// Some browsers return HTTP Status 0 when using non-http protocol\n\t\t\t\t\t\t// e.g. 'file://' or 'data://'. Handle as success.\n\n\t\t\t\t\t\tif ( this.status === 0 ) console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );\n\n\t\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\t\tif ( callback.onLoad ) callback.onLoad( response );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\t\tif ( callback.onError ) callback.onError( event );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, false );\n\n\t\t\t\trequest.addEventListener( 'progress', function ( event ) {\n\n\t\t\t\t\tvar callbacks = loading[ url ];\n console.log('three.js fileload progress', url);\n\n\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\tif ( callback.onProgress ) callback.onProgress( event );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, false );\n\n\t\t\t\trequest.addEventListener( 'error', function ( event ) {\n\n\t\t\t\t\tvar callbacks = loading[ url ];\n\n console.log('three.js fileload error', url);\n\t\t\t\t\tdelete loading[ url ];\n\n\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\tif ( callback.onError ) callback.onError( event );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t}, false );\n\n\t\t\t\tif ( this.responseType !== undefined ) request.responseType = this.responseType;\n\t\t\t\tif ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;\n\n\t\t\t\tif ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );\n\n\t\t\t\tfor ( var header in this.requestHeader ) {\n\n\t\t\t\t\trequest.setRequestHeader( header, this.requestHeader[ header ] );\n\n\t\t\t\t}\n\n\t\t\t\trequest.send( null );\n\n\t\t\t}\n\n\t\t\tscope.manager.itemStart( url );\n\n\t\t\treturn request;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetResponseType: function ( value ) {\n\n\t\t\tthis.responseType = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetWithCredentials: function ( value ) {\n\n\t\t\tthis.withCredentials = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetMimeType: function ( value ) {\n\n\t\t\tthis.mimeType = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetRequestHeader: function ( value ) {\n\n\t\t\tthis.requestHeader = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * Abstract Base class to block based textures loader (dds, pvr, ...)\n\t */\n\n\tfunction CompressedTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\t// override in sub classes\n\t\tthis._parser = null;\n\n\t}\n\n\tObject.assign( CompressedTextureLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar images = [];\n\n\t\t\tvar texture = new CompressedTexture();\n\t\t\ttexture.image = images;\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setPath( this.path );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\n\t\t\tfunction loadTexture( i ) {\n\n\t\t\t\tloader.load( url[ i ], function ( buffer ) {\n\n\t\t\t\t\tvar texDatas = scope._parser( buffer, true );\n\n\t\t\t\t\timages[ i ] = {\n\t\t\t\t\t\twidth: texDatas.width,\n\t\t\t\t\t\theight: texDatas.height,\n\t\t\t\t\t\tformat: texDatas.format,\n\t\t\t\t\t\tmipmaps: texDatas.mipmaps\n\t\t\t\t\t};\n\n\t\t\t\t\tloaded += 1;\n\n\t\t\t\t\tif ( loaded === 6 ) {\n\n\t\t\t\t\t\tif ( texDatas.mipmapCount === 1 )\n\t\t\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t\t\ttexture.format = texDatas.format;\n\t\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, onProgress, onError );\n\n\t\t\t}\n\n\t\t\tif ( Array.isArray( url ) ) {\n\n\t\t\t\tvar loaded = 0;\n\n\t\t\t\tfor ( var i = 0, il = url.length; i < il; ++ i ) {\n\n\t\t\t\t\tloadTexture( i );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// compressed cubemap texture stored in a single DDS file\n\n\t\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\t\tvar texDatas = scope._parser( buffer, true );\n\n\t\t\t\t\tif ( texDatas.isCubemap ) {\n\n\t\t\t\t\t\tvar faces = texDatas.mipmaps.length / texDatas.mipmapCount;\n\n\t\t\t\t\t\tfor ( var f = 0; f < faces; f ++ ) {\n\n\t\t\t\t\t\t\timages[ f ] = { mipmaps: [] };\n\n\t\t\t\t\t\t\tfor ( var i = 0; i < texDatas.mipmapCount; i ++ ) {\n\n\t\t\t\t\t\t\t\timages[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );\n\t\t\t\t\t\t\t\timages[ f ].format = texDatas.format;\n\t\t\t\t\t\t\t\timages[ f ].width = texDatas.width;\n\t\t\t\t\t\t\t\timages[ f ].height = texDatas.height;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttexture.image.width = texDatas.width;\n\t\t\t\t\t\ttexture.image.height = texDatas.height;\n\t\t\t\t\t\ttexture.mipmaps = texDatas.mipmaps;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( texDatas.mipmapCount === 1 ) {\n\n\t\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.format = texDatas.format;\n\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t}, onProgress, onError );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author Nikos M. / https://github.com/foo123/\n\t *\n\t * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)\n\t */\n\n\tfunction DataTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\t// override in sub classes\n\t\tthis._parser = null;\n\n\t}\n\n\tObject.assign( DataTextureLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar texture = new DataTexture();\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\n\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\tvar texData = scope._parser( buffer );\n\n\t\t\t\tif ( ! texData ) return;\n\n\t\t\t\tif ( undefined !== texData.image ) {\n\n\t\t\t\t\ttexture.image = texData.image;\n\n\t\t\t\t} else if ( undefined !== texData.data ) {\n\n\t\t\t\t\ttexture.image.width = texData.width;\n\t\t\t\t\ttexture.image.height = texData.height;\n\t\t\t\t\ttexture.image.data = texData.data;\n\n\t\t\t\t}\n\n\t\t\t\ttexture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;\n\t\t\t\ttexture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;\n\n\t\t\t\ttexture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;\n\t\t\t\ttexture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;\n\n\t\t\t\ttexture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;\n\n\t\t\t\tif ( undefined !== texData.format ) {\n\n\t\t\t\t\ttexture.format = texData.format;\n\n\t\t\t\t}\n\t\t\t\tif ( undefined !== texData.type ) {\n\n\t\t\t\t\ttexture.type = texData.type;\n\n\t\t\t\t}\n\n\t\t\t\tif ( undefined !== texData.mipmaps ) {\n\n\t\t\t\t\ttexture.mipmaps = texData.mipmaps;\n\n\t\t\t\t}\n\n\t\t\t\tif ( 1 === texData.mipmapCount ) {\n\n\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t}\n\n\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\tif ( onLoad ) onLoad( texture, texData );\n\n\t\t\t}, onProgress, onError );\n\n\n\t\t\treturn texture;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction ImageLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( ImageLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( url === undefined ) url = '';\n\n\t\t\tif ( this.path !== undefined ) url = this.path + url;\n\n\t\t\turl = this.manager.resolveURL( url );\n\n\t\t\tvar scope = this;\n\n\t\t\tvar cached = Cache.get( url );\n\n\t\t\tif ( cached !== undefined ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\tsetTimeout( function () {\n\n\t\t\t\t\tif ( onLoad ) onLoad( cached );\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, 0 );\n\n\t\t\t\treturn cached;\n\n\t\t\t}\n\n\t\t\tvar image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );\n\n\t\t\tfunction onImageLoad() {\n\n\t\t\t\timage.removeEventListener( 'load', onImageLoad, false );\n\t\t\t\timage.removeEventListener( 'error', onImageError, false );\n\n\t\t\t\tCache.add( url, this );\n\n\t\t\t\tif ( onLoad ) onLoad( this );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t}\n\n\t\t\tfunction onImageError( event ) {\n\n\t\t\t\timage.removeEventListener( 'load', onImageLoad, false );\n\t\t\t\timage.removeEventListener( 'error', onImageError, false );\n\n\t\t\t\tif ( onError ) onError( event );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t}\n\n\t\t\timage.addEventListener( 'load', onImageLoad, false );\n\t\t\timage.addEventListener( 'error', onImageError, false );\n\n\t\t\tif ( url.substr( 0, 5 ) !== 'data:' ) {\n\n\t\t\t\tif ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;\n\n\t\t\t}\n\n\t\t\tscope.manager.itemStart( url );\n\n\t\t\timage.src = url;\n\n\t\t\treturn image;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction CubeTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( CubeTextureLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( urls, onLoad, onProgress, onError ) {\n\n\t\t\tvar texture = new CubeTexture();\n\n\t\t\tvar loader = new ImageLoader( this.manager );\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\t\t\tloader.setPath( this.path );\n\n\t\t\tvar loaded = 0;\n\n\t\t\tfunction loadTexture( i ) {\n\n\t\t\t\tloader.load( urls[ i ], function ( image ) {\n\n\t\t\t\t\ttexture.images[ i ] = image;\n\n\t\t\t\t\tloaded ++;\n\n\t\t\t\t\tif ( loaded === 6 ) {\n\n\t\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, undefined, onError );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < urls.length; ++ i ) {\n\n\t\t\t\tloadTexture( i );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction TextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( TextureLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar texture = new Texture();\n\n\t\t\tvar loader = new ImageLoader( this.manager );\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\t\t\tloader.setPath( this.path );\n\n\t\t\tloader.load( url, function ( image ) {\n\n\t\t\t\ttexture.image = image;\n\n\t\t\t\t// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.\n\t\t\t\tvar isJPEG = url.search( /\\.(jpg|jpeg)$/ ) > 0 || url.search( /^data\\:image\\/jpeg/ ) === 0;\n\n\t\t\t\ttexture.format = isJPEG ? RGBFormat : RGBAFormat;\n\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\tif ( onLoad !== undefined ) {\n\n\t\t\t\t\tonLoad( texture );\n\n\t\t\t\t}\n\n\t\t\t}, onProgress, onError );\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Extensible curve object\n\t *\n\t * Some common of curve methods:\n\t * .getPoint( t, optionalTarget ), .getTangent( t )\n\t * .getPointAt( u, optionalTarget ), .getTangentAt( u )\n\t * .getPoints(), .getSpacedPoints()\n\t * .getLength()\n\t * .updateArcLengths()\n\t *\n\t * This following curves inherit from THREE.Curve:\n\t *\n\t * -- 2D curves --\n\t * THREE.ArcCurve\n\t * THREE.CubicBezierCurve\n\t * THREE.EllipseCurve\n\t * THREE.LineCurve\n\t * THREE.QuadraticBezierCurve\n\t * THREE.SplineCurve\n\t *\n\t * -- 3D curves --\n\t * THREE.CatmullRomCurve3\n\t * THREE.CubicBezierCurve3\n\t * THREE.LineCurve3\n\t * THREE.QuadraticBezierCurve3\n\t *\n\t * A series of curves can be represented as a THREE.CurvePath.\n\t *\n\t **/\n\n\t/**************************************************************\n\t *\tAbstract Curve base class\n\t **************************************************************/\n\n\tfunction Curve() {\n\n\t\tthis.type = 'Curve';\n\n\t\tthis.arcLengthDivisions = 200;\n\n\t}\n\n\tObject.assign( Curve.prototype, {\n\n\t\t// Virtual base class method to overwrite and implement in subclasses\n\t\t//\t- t [0 .. 1]\n\n\t\tgetPoint: function ( /* t, optionalTarget */ ) {\n\n\t\t\tconsole.warn( 'THREE.Curve: .getPoint() not implemented.' );\n\t\t\treturn null;\n\n\t\t},\n\n\t\t// Get point at relative position in curve according to arc length\n\t\t// - u [0 .. 1]\n\n\t\tgetPointAt: function ( u, optionalTarget ) {\n\n\t\t\tvar t = this.getUtoTmapping( u );\n\t\t\treturn this.getPoint( t, optionalTarget );\n\n\t\t},\n\n\t\t// Get sequence of points using getPoint( t )\n\n\t\tgetPoints: function ( divisions ) {\n\n\t\t\tif ( divisions === undefined ) divisions = 5;\n\n\t\t\tvar points = [];\n\n\t\t\tfor ( var d = 0; d <= divisions; d ++ ) {\n\n\t\t\t\tpoints.push( this.getPoint( d / divisions ) );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\t// Get sequence of points using getPointAt( u )\n\n\t\tgetSpacedPoints: function ( divisions ) {\n\n\t\t\tif ( divisions === undefined ) divisions = 5;\n\n\t\t\tvar points = [];\n\n\t\t\tfor ( var d = 0; d <= divisions; d ++ ) {\n\n\t\t\t\tpoints.push( this.getPointAt( d / divisions ) );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\t// Get total curve arc length\n\n\t\tgetLength: function () {\n\n\t\t\tvar lengths = this.getLengths();\n\t\t\treturn lengths[ lengths.length - 1 ];\n\n\t\t},\n\n\t\t// Get list of cumulative segment lengths\n\n\t\tgetLengths: function ( divisions ) {\n\n\t\t\tif ( divisions === undefined ) divisions = this.arcLengthDivisions;\n\n\t\t\tif ( this.cacheArcLengths &&\n\t\t\t\t( this.cacheArcLengths.length === divisions + 1 ) &&\n\t\t\t\t! this.needsUpdate ) {\n\n\t\t\t\treturn this.cacheArcLengths;\n\n\t\t\t}\n\n\t\t\tthis.needsUpdate = false;\n\n\t\t\tvar cache = [];\n\t\t\tvar current, last = this.getPoint( 0 );\n\t\t\tvar p, sum = 0;\n\n\t\t\tcache.push( 0 );\n\n\t\t\tfor ( p = 1; p <= divisions; p ++ ) {\n\n\t\t\t\tcurrent = this.getPoint( p / divisions );\n\t\t\t\tsum += current.distanceTo( last );\n\t\t\t\tcache.push( sum );\n\t\t\t\tlast = current;\n\n\t\t\t}\n\n\t\t\tthis.cacheArcLengths = cache;\n\n\t\t\treturn cache; // { sums: cache, sum: sum }; Sum is in the last element.\n\n\t\t},\n\n\t\tupdateArcLengths: function () {\n\n\t\t\tthis.needsUpdate = true;\n\t\t\tthis.getLengths();\n\n\t\t},\n\n\t\t// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant\n\n\t\tgetUtoTmapping: function ( u, distance ) {\n\n\t\t\tvar arcLengths = this.getLengths();\n\n\t\t\tvar i = 0, il = arcLengths.length;\n\n\t\t\tvar targetArcLength; // The targeted u distance value to get\n\n\t\t\tif ( distance ) {\n\n\t\t\t\ttargetArcLength = distance;\n\n\t\t\t} else {\n\n\t\t\t\ttargetArcLength = u * arcLengths[ il - 1 ];\n\n\t\t\t}\n\n\t\t\t// binary search for the index with largest value smaller than target u distance\n\n\t\t\tvar low = 0, high = il - 1, comparison;\n\n\t\t\twhile ( low <= high ) {\n\n\t\t\t\ti = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats\n\n\t\t\t\tcomparison = arcLengths[ i ] - targetArcLength;\n\n\t\t\t\tif ( comparison < 0 ) {\n\n\t\t\t\t\tlow = i + 1;\n\n\t\t\t\t} else if ( comparison > 0 ) {\n\n\t\t\t\t\thigh = i - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\thigh = i;\n\t\t\t\t\tbreak;\n\n\t\t\t\t\t// DONE\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\ti = high;\n\n\t\t\tif ( arcLengths[ i ] === targetArcLength ) {\n\n\t\t\t\treturn i / ( il - 1 );\n\n\t\t\t}\n\n\t\t\t// we could get finer grain at lengths, or use simple interpolation between two points\n\n\t\t\tvar lengthBefore = arcLengths[ i ];\n\t\t\tvar lengthAfter = arcLengths[ i + 1 ];\n\n\t\t\tvar segmentLength = lengthAfter - lengthBefore;\n\n\t\t\t// determine where we are between the 'before' and 'after' points\n\n\t\t\tvar segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;\n\n\t\t\t// add that fractional amount to t\n\n\t\t\tvar t = ( i + segmentFraction ) / ( il - 1 );\n\n\t\t\treturn t;\n\n\t\t},\n\n\t\t// Returns a unit vector tangent at t\n\t\t// In case any sub curve does not implement its tangent derivation,\n\t\t// 2 points a small delta apart will be used to find its gradient\n\t\t// which seems to give a reasonable approximation\n\n\t\tgetTangent: function ( t ) {\n\n\t\t\tvar delta = 0.0001;\n\t\t\tvar t1 = t - delta;\n\t\t\tvar t2 = t + delta;\n\n\t\t\t// Capping in case of danger\n\n\t\t\tif ( t1 < 0 ) t1 = 0;\n\t\t\tif ( t2 > 1 ) t2 = 1;\n\n\t\t\tvar pt1 = this.getPoint( t1 );\n\t\t\tvar pt2 = this.getPoint( t2 );\n\n\t\t\tvar vec = pt2.clone().sub( pt1 );\n\t\t\treturn vec.normalize();\n\n\t\t},\n\n\t\tgetTangentAt: function ( u ) {\n\n\t\t\tvar t = this.getUtoTmapping( u );\n\t\t\treturn this.getTangent( t );\n\n\t\t},\n\n\t\tcomputeFrenetFrames: function ( segments, closed ) {\n\n\t\t\t// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf\n\n\t\t\tvar normal = new Vector3();\n\n\t\t\tvar tangents = [];\n\t\t\tvar normals = [];\n\t\t\tvar binormals = [];\n\n\t\t\tvar vec = new Vector3();\n\t\t\tvar mat = new Matrix4();\n\n\t\t\tvar i, u, theta;\n\n\t\t\t// compute the tangent vectors for each segment on the curve\n\n\t\t\tfor ( i = 0; i <= segments; i ++ ) {\n\n\t\t\t\tu = i / segments;\n\n\t\t\t\ttangents[ i ] = this.getTangentAt( u );\n\t\t\t\ttangents[ i ].normalize();\n\n\t\t\t}\n\n\t\t\t// select an initial normal vector perpendicular to the first tangent vector,\n\t\t\t// and in the direction of the minimum tangent xyz component\n\n\t\t\tnormals[ 0 ] = new Vector3();\n\t\t\tbinormals[ 0 ] = new Vector3();\n\t\t\tvar min = Number.MAX_VALUE;\n\t\t\tvar tx = Math.abs( tangents[ 0 ].x );\n\t\t\tvar ty = Math.abs( tangents[ 0 ].y );\n\t\t\tvar tz = Math.abs( tangents[ 0 ].z );\n\n\t\t\tif ( tx <= min ) {\n\n\t\t\t\tmin = tx;\n\t\t\t\tnormal.set( 1, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( ty <= min ) {\n\n\t\t\t\tmin = ty;\n\t\t\t\tnormal.set( 0, 1, 0 );\n\n\t\t\t}\n\n\t\t\tif ( tz <= min ) {\n\n\t\t\t\tnormal.set( 0, 0, 1 );\n\n\t\t\t}\n\n\t\t\tvec.crossVectors( tangents[ 0 ], normal ).normalize();\n\n\t\t\tnormals[ 0 ].crossVectors( tangents[ 0 ], vec );\n\t\t\tbinormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );\n\n\n\t\t\t// compute the slowly-varying normal and binormal vectors for each segment on the curve\n\n\t\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\t\tnormals[ i ] = normals[ i - 1 ].clone();\n\n\t\t\t\tbinormals[ i ] = binormals[ i - 1 ].clone();\n\n\t\t\t\tvec.crossVectors( tangents[ i - 1 ], tangents[ i ] );\n\n\t\t\t\tif ( vec.length() > Number.EPSILON ) {\n\n\t\t\t\t\tvec.normalize();\n\n\t\t\t\t\ttheta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors\n\n\t\t\t\t\tnormals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );\n\n\t\t\t\t}\n\n\t\t\t\tbinormals[ i ].crossVectors( tangents[ i ], normals[ i ] );\n\n\t\t\t}\n\n\t\t\t// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same\n\n\t\t\tif ( closed === true ) {\n\n\t\t\t\ttheta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );\n\t\t\t\ttheta /= segments;\n\n\t\t\t\tif ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {\n\n\t\t\t\t\ttheta = - theta;\n\n\t\t\t\t}\n\n\t\t\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\t\t\t// twist a little...\n\t\t\t\t\tnormals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );\n\t\t\t\t\tbinormals[ i ].crossVectors( tangents[ i ], normals[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\ttangents: tangents,\n\t\t\t\tnormals: normals,\n\t\t\t\tbinormals: binormals\n\t\t\t};\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.arcLengthDivisions = source.arcLengthDivisions;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Curve',\n\t\t\t\t\tgenerator: 'Curve.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\tdata.arcLengthDivisions = this.arcLengthDivisions;\n\t\t\tdata.type = this.type;\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tthis.arcLengthDivisions = json.arcLengthDivisions;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\tfunction EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'EllipseCurve';\n\n\t\tthis.aX = aX || 0;\n\t\tthis.aY = aY || 0;\n\n\t\tthis.xRadius = xRadius || 1;\n\t\tthis.yRadius = yRadius || 1;\n\n\t\tthis.aStartAngle = aStartAngle || 0;\n\t\tthis.aEndAngle = aEndAngle || 2 * Math.PI;\n\n\t\tthis.aClockwise = aClockwise || false;\n\n\t\tthis.aRotation = aRotation || 0;\n\n\t}\n\n\tEllipseCurve.prototype = Object.create( Curve.prototype );\n\tEllipseCurve.prototype.constructor = EllipseCurve;\n\n\tEllipseCurve.prototype.isEllipseCurve = true;\n\n\tEllipseCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar twoPi = Math.PI * 2;\n\t\tvar deltaAngle = this.aEndAngle - this.aStartAngle;\n\t\tvar samePoints = Math.abs( deltaAngle ) < Number.EPSILON;\n\n\t\t// ensures that deltaAngle is 0 .. 2 PI\n\t\twhile ( deltaAngle < 0 ) deltaAngle += twoPi;\n\t\twhile ( deltaAngle > twoPi ) deltaAngle -= twoPi;\n\n\t\tif ( deltaAngle < Number.EPSILON ) {\n\n\t\t\tif ( samePoints ) {\n\n\t\t\t\tdeltaAngle = 0;\n\n\t\t\t} else {\n\n\t\t\t\tdeltaAngle = twoPi;\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( this.aClockwise === true && ! samePoints ) {\n\n\t\t\tif ( deltaAngle === twoPi ) {\n\n\t\t\t\tdeltaAngle = - twoPi;\n\n\t\t\t} else {\n\n\t\t\t\tdeltaAngle = deltaAngle - twoPi;\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar angle = this.aStartAngle + t * deltaAngle;\n\t\tvar x = this.aX + this.xRadius * Math.cos( angle );\n\t\tvar y = this.aY + this.yRadius * Math.sin( angle );\n\n\t\tif ( this.aRotation !== 0 ) {\n\n\t\t\tvar cos = Math.cos( this.aRotation );\n\t\t\tvar sin = Math.sin( this.aRotation );\n\n\t\t\tvar tx = x - this.aX;\n\t\t\tvar ty = y - this.aY;\n\n\t\t\t// Rotate the point about the center of the ellipse.\n\t\t\tx = tx * cos - ty * sin + this.aX;\n\t\t\ty = tx * sin + ty * cos + this.aY;\n\n\t\t}\n\n\t\treturn point.set( x, y );\n\n\t};\n\n\tEllipseCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.aX = source.aX;\n\t\tthis.aY = source.aY;\n\n\t\tthis.xRadius = source.xRadius;\n\t\tthis.yRadius = source.yRadius;\n\n\t\tthis.aStartAngle = source.aStartAngle;\n\t\tthis.aEndAngle = source.aEndAngle;\n\n\t\tthis.aClockwise = source.aClockwise;\n\n\t\tthis.aRotation = source.aRotation;\n\n\t\treturn this;\n\n\t};\n\n\n\tEllipseCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.aX = this.aX;\n\t\tdata.aY = this.aY;\n\n\t\tdata.xRadius = this.xRadius;\n\t\tdata.yRadius = this.yRadius;\n\n\t\tdata.aStartAngle = this.aStartAngle;\n\t\tdata.aEndAngle = this.aEndAngle;\n\n\t\tdata.aClockwise = this.aClockwise;\n\n\t\tdata.aRotation = this.aRotation;\n\n\t\treturn data;\n\n\t};\n\n\tEllipseCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.aX = json.aX;\n\t\tthis.aY = json.aY;\n\n\t\tthis.xRadius = json.xRadius;\n\t\tthis.yRadius = json.yRadius;\n\n\t\tthis.aStartAngle = json.aStartAngle;\n\t\tthis.aEndAngle = json.aEndAngle;\n\n\t\tthis.aClockwise = json.aClockwise;\n\n\t\tthis.aRotation = json.aRotation;\n\n\t\treturn this;\n\n\t};\n\n\tfunction ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\tEllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );\n\n\t\tthis.type = 'ArcCurve';\n\n\t}\n\n\tArcCurve.prototype = Object.create( EllipseCurve.prototype );\n\tArcCurve.prototype.constructor = ArcCurve;\n\n\tArcCurve.prototype.isArcCurve = true;\n\n\t/**\n\t * @author zz85 https://github.com/zz85\n\t *\n\t * Centripetal CatmullRom Curve - which is useful for avoiding\n\t * cusps and self-intersections in non-uniform catmull rom curves.\n\t * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf\n\t *\n\t * curve.type accepts centripetal(default), chordal and catmullrom\n\t * curve.tension is used for catmullrom which defaults to 0.5\n\t */\n\n\n\t/*\n\tBased on an optimized c++ solution in\n\t - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/\n\t - http://ideone.com/NoEbVM\n\n\tThis CubicPoly class could be used for reusing some variables and calculations,\n\tbut for three.js curve use, it could be possible inlined and flatten into a single function call\n\twhich can be placed in CurveUtils.\n\t*/\n\n\tfunction CubicPoly() {\n\n\t\tvar c0 = 0, c1 = 0, c2 = 0, c3 = 0;\n\n\t\t/*\n\t\t * Compute coefficients for a cubic polynomial\n\t\t * p(s) = c0 + c1*s + c2*s^2 + c3*s^3\n\t\t * such that\n\t\t * p(0) = x0, p(1) = x1\n\t\t * and\n\t\t * p'(0) = t0, p'(1) = t1.\n\t\t */\n\t\tfunction init( x0, x1, t0, t1 ) {\n\n\t\t\tc0 = x0;\n\t\t\tc1 = t0;\n\t\t\tc2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;\n\t\t\tc3 = 2 * x0 - 2 * x1 + t0 + t1;\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tinitCatmullRom: function ( x0, x1, x2, x3, tension ) {\n\n\t\t\t\tinit( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );\n\n\t\t\t},\n\n\t\t\tinitNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {\n\n\t\t\t\t// compute tangents when parameterized in [t1,t2]\n\t\t\t\tvar t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;\n\t\t\t\tvar t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;\n\n\t\t\t\t// rescale tangents for parametrization in [0,1]\n\t\t\t\tt1 *= dt1;\n\t\t\t\tt2 *= dt1;\n\n\t\t\t\tinit( x1, x2, t1, t2 );\n\n\t\t\t},\n\n\t\t\tcalc: function ( t ) {\n\n\t\t\t\tvar t2 = t * t;\n\t\t\t\tvar t3 = t2 * t;\n\t\t\t\treturn c0 + c1 * t + c2 * t2 + c3 * t3;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t//\n\n\tvar tmp = new Vector3();\n\tvar px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly();\n\n\tfunction CatmullRomCurve3( points, closed, curveType, tension ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CatmullRomCurve3';\n\n\t\tthis.points = points || [];\n\t\tthis.closed = closed || false;\n\t\tthis.curveType = curveType || 'centripetal';\n\t\tthis.tension = tension || 0.5;\n\n\t}\n\n\tCatmullRomCurve3.prototype = Object.create( Curve.prototype );\n\tCatmullRomCurve3.prototype.constructor = CatmullRomCurve3;\n\n\tCatmullRomCurve3.prototype.isCatmullRomCurve3 = true;\n\n\tCatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tvar points = this.points;\n\t\tvar l = points.length;\n\n\t\tvar p = ( l - ( this.closed ? 0 : 1 ) ) * t;\n\t\tvar intPoint = Math.floor( p );\n\t\tvar weight = p - intPoint;\n\n\t\tif ( this.closed ) {\n\n\t\t\tintPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l;\n\n\t\t} else if ( weight === 0 && intPoint === l - 1 ) {\n\n\t\t\tintPoint = l - 2;\n\t\t\tweight = 1;\n\n\t\t}\n\n\t\tvar p0, p1, p2, p3; // 4 points\n\n\t\tif ( this.closed || intPoint > 0 ) {\n\n\t\t\tp0 = points[ ( intPoint - 1 ) % l ];\n\n\t\t} else {\n\n\t\t\t// extrapolate first point\n\t\t\ttmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );\n\t\t\tp0 = tmp;\n\n\t\t}\n\n\t\tp1 = points[ intPoint % l ];\n\t\tp2 = points[ ( intPoint + 1 ) % l ];\n\n\t\tif ( this.closed || intPoint + 2 < l ) {\n\n\t\t\tp3 = points[ ( intPoint + 2 ) % l ];\n\n\t\t} else {\n\n\t\t\t// extrapolate last point\n\t\t\ttmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );\n\t\t\tp3 = tmp;\n\n\t\t}\n\n\t\tif ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {\n\n\t\t\t// init Centripetal / Chordal Catmull-Rom\n\t\t\tvar pow = this.curveType === 'chordal' ? 0.5 : 0.25;\n\t\t\tvar dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );\n\t\t\tvar dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );\n\t\t\tvar dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );\n\n\t\t\t// safety check for repeated points\n\t\t\tif ( dt1 < 1e-4 ) dt1 = 1.0;\n\t\t\tif ( dt0 < 1e-4 ) dt0 = dt1;\n\t\t\tif ( dt2 < 1e-4 ) dt2 = dt1;\n\n\t\t\tpx.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );\n\t\t\tpy.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );\n\t\t\tpz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );\n\n\t\t} else if ( this.curveType === 'catmullrom' ) {\n\n\t\t\tpx.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );\n\t\t\tpy.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );\n\t\t\tpz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );\n\n\t\t}\n\n\t\tpoint.set(\n\t\t\tpx.calc( weight ),\n\t\t\tpy.calc( weight ),\n\t\t\tpz.calc( weight )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tCatmullRomCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = source.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = source.points[ i ];\n\n\t\t\tthis.points.push( point.clone() );\n\n\t\t}\n\n\t\tthis.closed = source.closed;\n\t\tthis.curveType = source.curveType;\n\t\tthis.tension = source.tension;\n\n\t\treturn this;\n\n\t};\n\n\tCatmullRomCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.points = [];\n\n\t\tfor ( var i = 0, l = this.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = this.points[ i ];\n\t\t\tdata.points.push( point.toArray() );\n\n\t\t}\n\n\t\tdata.closed = this.closed;\n\t\tdata.curveType = this.curveType;\n\t\tdata.tension = this.tension;\n\n\t\treturn data;\n\n\t};\n\n\tCatmullRomCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = json.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = json.points[ i ];\n\t\t\tthis.points.push( new Vector3().fromArray( point ) );\n\n\t\t}\n\n\t\tthis.closed = json.closed;\n\t\tthis.curveType = json.curveType;\n\t\tthis.tension = json.tension;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t * Bezier Curves formulas obtained from\n\t * http://en.wikipedia.org/wiki/Bézier_curve\n\t */\n\n\tfunction CatmullRom( t, p0, p1, p2, p3 ) {\n\n\t\tvar v0 = ( p2 - p0 ) * 0.5;\n\t\tvar v1 = ( p3 - p1 ) * 0.5;\n\t\tvar t2 = t * t;\n\t\tvar t3 = t * t2;\n\t\treturn ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;\n\n\t}\n\n\t//\n\n\tfunction QuadraticBezierP0( t, p ) {\n\n\t\tvar k = 1 - t;\n\t\treturn k * k * p;\n\n\t}\n\n\tfunction QuadraticBezierP1( t, p ) {\n\n\t\treturn 2 * ( 1 - t ) * t * p;\n\n\t}\n\n\tfunction QuadraticBezierP2( t, p ) {\n\n\t\treturn t * t * p;\n\n\t}\n\n\tfunction QuadraticBezier( t, p0, p1, p2 ) {\n\n\t\treturn QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +\n\t\t\tQuadraticBezierP2( t, p2 );\n\n\t}\n\n\t//\n\n\tfunction CubicBezierP0( t, p ) {\n\n\t\tvar k = 1 - t;\n\t\treturn k * k * k * p;\n\n\t}\n\n\tfunction CubicBezierP1( t, p ) {\n\n\t\tvar k = 1 - t;\n\t\treturn 3 * k * k * t * p;\n\n\t}\n\n\tfunction CubicBezierP2( t, p ) {\n\n\t\treturn 3 * ( 1 - t ) * t * t * p;\n\n\t}\n\n\tfunction CubicBezierP3( t, p ) {\n\n\t\treturn t * t * t * p;\n\n\t}\n\n\tfunction CubicBezier( t, p0, p1, p2, p3 ) {\n\n\t\treturn CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +\n\t\t\tCubicBezierP3( t, p3 );\n\n\t}\n\n\tfunction CubicBezierCurve( v0, v1, v2, v3 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CubicBezierCurve';\n\n\t\tthis.v0 = v0 || new Vector2();\n\t\tthis.v1 = v1 || new Vector2();\n\t\tthis.v2 = v2 || new Vector2();\n\t\tthis.v3 = v3 || new Vector2();\n\n\t}\n\n\tCubicBezierCurve.prototype = Object.create( Curve.prototype );\n\tCubicBezierCurve.prototype.constructor = CubicBezierCurve;\n\n\tCubicBezierCurve.prototype.isCubicBezierCurve = true;\n\n\tCubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;\n\n\t\tpoint.set(\n\t\t\tCubicBezier( t, v0.x, v1.x, v2.x, v3.x ),\n\t\t\tCubicBezier( t, v0.y, v1.y, v2.y, v3.y )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tCubicBezierCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\t\tthis.v3.copy( source.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tCubicBezierCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\t\tdata.v3 = this.v3.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tCubicBezierCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\t\tthis.v3.fromArray( json.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction CubicBezierCurve3( v0, v1, v2, v3 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CubicBezierCurve3';\n\n\t\tthis.v0 = v0 || new Vector3();\n\t\tthis.v1 = v1 || new Vector3();\n\t\tthis.v2 = v2 || new Vector3();\n\t\tthis.v3 = v3 || new Vector3();\n\n\t}\n\n\tCubicBezierCurve3.prototype = Object.create( Curve.prototype );\n\tCubicBezierCurve3.prototype.constructor = CubicBezierCurve3;\n\n\tCubicBezierCurve3.prototype.isCubicBezierCurve3 = true;\n\n\tCubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;\n\n\t\tpoint.set(\n\t\t\tCubicBezier( t, v0.x, v1.x, v2.x, v3.x ),\n\t\t\tCubicBezier( t, v0.y, v1.y, v2.y, v3.y ),\n\t\t\tCubicBezier( t, v0.z, v1.z, v2.z, v3.z )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tCubicBezierCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\t\tthis.v3.copy( source.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tCubicBezierCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\t\tdata.v3 = this.v3.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tCubicBezierCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\t\tthis.v3.fromArray( json.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction LineCurve( v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'LineCurve';\n\n\t\tthis.v1 = v1 || new Vector2();\n\t\tthis.v2 = v2 || new Vector2();\n\n\t}\n\n\tLineCurve.prototype = Object.create( Curve.prototype );\n\tLineCurve.prototype.constructor = LineCurve;\n\n\tLineCurve.prototype.isLineCurve = true;\n\n\tLineCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tif ( t === 1 ) {\n\n\t\t\tpoint.copy( this.v2 );\n\n\t\t} else {\n\n\t\t\tpoint.copy( this.v2 ).sub( this.v1 );\n\t\t\tpoint.multiplyScalar( t ).add( this.v1 );\n\n\t\t}\n\n\t\treturn point;\n\n\t};\n\n\t// Line curve is linear, so we can overwrite default getPointAt\n\n\tLineCurve.prototype.getPointAt = function ( u, optionalTarget ) {\n\n\t\treturn this.getPoint( u, optionalTarget );\n\n\t};\n\n\tLineCurve.prototype.getTangent = function ( /* t */ ) {\n\n\t\tvar tangent = this.v2.clone().sub( this.v1 );\n\n\t\treturn tangent.normalize();\n\n\t};\n\n\tLineCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tLineCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tLineCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction LineCurve3( v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'LineCurve3';\n\n\t\tthis.v1 = v1 || new Vector3();\n\t\tthis.v2 = v2 || new Vector3();\n\n\t}\n\n\tLineCurve3.prototype = Object.create( Curve.prototype );\n\tLineCurve3.prototype.constructor = LineCurve3;\n\n\tLineCurve3.prototype.isLineCurve3 = true;\n\n\tLineCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tif ( t === 1 ) {\n\n\t\t\tpoint.copy( this.v2 );\n\n\t\t} else {\n\n\t\t\tpoint.copy( this.v2 ).sub( this.v1 );\n\t\t\tpoint.multiplyScalar( t ).add( this.v1 );\n\n\t\t}\n\n\t\treturn point;\n\n\t};\n\n\t// Line curve is linear, so we can overwrite default getPointAt\n\n\tLineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {\n\n\t\treturn this.getPoint( u, optionalTarget );\n\n\t};\n\n\tLineCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tLineCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tLineCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction QuadraticBezierCurve( v0, v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'QuadraticBezierCurve';\n\n\t\tthis.v0 = v0 || new Vector2();\n\t\tthis.v1 = v1 || new Vector2();\n\t\tthis.v2 = v2 || new Vector2();\n\n\t}\n\n\tQuadraticBezierCurve.prototype = Object.create( Curve.prototype );\n\tQuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;\n\n\tQuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;\n\n\tQuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2;\n\n\t\tpoint.set(\n\t\t\tQuadraticBezier( t, v0.x, v1.x, v2.x ),\n\t\t\tQuadraticBezier( t, v0.y, v1.y, v2.y )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tQuadraticBezierCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tQuadraticBezierCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tQuadraticBezierCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction QuadraticBezierCurve3( v0, v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'QuadraticBezierCurve3';\n\n\t\tthis.v0 = v0 || new Vector3();\n\t\tthis.v1 = v1 || new Vector3();\n\t\tthis.v2 = v2 || new Vector3();\n\n\t}\n\n\tQuadraticBezierCurve3.prototype = Object.create( Curve.prototype );\n\tQuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;\n\n\tQuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;\n\n\tQuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2;\n\n\t\tpoint.set(\n\t\t\tQuadraticBezier( t, v0.x, v1.x, v2.x ),\n\t\t\tQuadraticBezier( t, v0.y, v1.y, v2.y ),\n\t\t\tQuadraticBezier( t, v0.z, v1.z, v2.z )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tQuadraticBezierCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tQuadraticBezierCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tQuadraticBezierCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction SplineCurve( points /* array of Vector2 */ ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'SplineCurve';\n\n\t\tthis.points = points || [];\n\n\t}\n\n\tSplineCurve.prototype = Object.create( Curve.prototype );\n\tSplineCurve.prototype.constructor = SplineCurve;\n\n\tSplineCurve.prototype.isSplineCurve = true;\n\n\tSplineCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar points = this.points;\n\t\tvar p = ( points.length - 1 ) * t;\n\n\t\tvar intPoint = Math.floor( p );\n\t\tvar weight = p - intPoint;\n\n\t\tvar p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];\n\t\tvar p1 = points[ intPoint ];\n\t\tvar p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];\n\t\tvar p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];\n\n\t\tpoint.set(\n\t\t\tCatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),\n\t\t\tCatmullRom( weight, p0.y, p1.y, p2.y, p3.y )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tSplineCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = source.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = source.points[ i ];\n\n\t\t\tthis.points.push( point.clone() );\n\n\t\t}\n\n\t\treturn this;\n\n\t};\n\n\tSplineCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.points = [];\n\n\t\tfor ( var i = 0, l = this.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = this.points[ i ];\n\t\t\tdata.points.push( point.toArray() );\n\n\t\t}\n\n\t\treturn data;\n\n\t};\n\n\tSplineCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = json.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = json.points[ i ];\n\t\t\tthis.points.push( new Vector2().fromArray( point ) );\n\n\t\t}\n\n\t\treturn this;\n\n\t};\n\n\n\n\tvar Curves = /*#__PURE__*/Object.freeze({\n\t\tArcCurve: ArcCurve,\n\t\tCatmullRomCurve3: CatmullRomCurve3,\n\t\tCubicBezierCurve: CubicBezierCurve,\n\t\tCubicBezierCurve3: CubicBezierCurve3,\n\t\tEllipseCurve: EllipseCurve,\n\t\tLineCurve: LineCurve,\n\t\tLineCurve3: LineCurve3,\n\t\tQuadraticBezierCurve: QuadraticBezierCurve,\n\t\tQuadraticBezierCurve3: QuadraticBezierCurve3,\n\t\tSplineCurve: SplineCurve\n\t});\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t **/\n\n\t/**************************************************************\n\t *\tCurved Path - a curve path is simply a array of connected\n\t * curves, but retains the api of a curve\n\t **************************************************************/\n\n\tfunction CurvePath() {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CurvePath';\n\n\t\tthis.curves = [];\n\t\tthis.autoClose = false; // Automatically closes the path\n\n\t}\n\n\tCurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {\n\n\t\tconstructor: CurvePath,\n\n\t\tadd: function ( curve ) {\n\n\t\t\tthis.curves.push( curve );\n\n\t\t},\n\n\t\tclosePath: function () {\n\n\t\t\t// Add a line curve if start and end of lines are not connected\n\t\t\tvar startPoint = this.curves[ 0 ].getPoint( 0 );\n\t\t\tvar endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );\n\n\t\t\tif ( ! startPoint.equals( endPoint ) ) {\n\n\t\t\t\tthis.curves.push( new LineCurve( endPoint, startPoint ) );\n\n\t\t\t}\n\n\t\t},\n\n\t\t// To get accurate point with reference to\n\t\t// entire path distance at time t,\n\t\t// following has to be done:\n\n\t\t// 1. Length of each sub path have to be known\n\t\t// 2. Locate and identify type of curve\n\t\t// 3. Get t for the curve\n\t\t// 4. Return curve.getPointAt(t')\n\n\t\tgetPoint: function ( t ) {\n\n\t\t\tvar d = t * this.getLength();\n\t\t\tvar curveLengths = this.getCurveLengths();\n\t\t\tvar i = 0;\n\n\t\t\t// To think about boundaries points.\n\n\t\t\twhile ( i < curveLengths.length ) {\n\n\t\t\t\tif ( curveLengths[ i ] >= d ) {\n\n\t\t\t\t\tvar diff = curveLengths[ i ] - d;\n\t\t\t\t\tvar curve = this.curves[ i ];\n\n\t\t\t\t\tvar segmentLength = curve.getLength();\n\t\t\t\t\tvar u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;\n\n\t\t\t\t\treturn curve.getPointAt( u );\n\n\t\t\t\t}\n\n\t\t\t\ti ++;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t\t// loop where sum != 0, sum > d , sum+1 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {\n\n\t\t\t\tpoints.push( points[ 0 ] );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tCurve.prototype.copy.call( this, source );\n\n\t\t\tthis.curves = [];\n\n\t\t\tfor ( var i = 0, l = source.curves.length; i < l; i ++ ) {\n\n\t\t\t\tvar curve = source.curves[ i ];\n\n\t\t\t\tthis.curves.push( curve.clone() );\n\n\t\t\t}\n\n\t\t\tthis.autoClose = source.autoClose;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\t\tdata.autoClose = this.autoClose;\n\t\t\tdata.curves = [];\n\n\t\t\tfor ( var i = 0, l = this.curves.length; i < l; i ++ ) {\n\n\t\t\t\tvar curve = this.curves[ i ];\n\t\t\t\tdata.curves.push( curve.toJSON() );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\t\tthis.autoClose = json.autoClose;\n\t\t\tthis.curves = [];\n\n\t\t\tfor ( var i = 0, l = json.curves.length; i < l; i ++ ) {\n\n\t\t\t\tvar curve = json.curves[ i ];\n\t\t\t\tthis.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Creates free form 2d path using series of points, lines or curves.\n\t **/\n\n\tfunction Path( points ) {\n\n\t\tCurvePath.call( this );\n\n\t\tthis.type = 'Path';\n\n\t\tthis.currentPoint = new Vector2();\n\n\t\tif ( points ) {\n\n\t\t\tthis.setFromPoints( points );\n\n\t\t}\n\n\t}\n\n\tPath.prototype = Object.assign( Object.create( CurvePath.prototype ), {\n\n\t\tconstructor: Path,\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.moveTo( points[ 0 ].x, points[ 0 ].y );\n\n\t\t\tfor ( var i = 1, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tthis.lineTo( points[ i ].x, points[ i ].y );\n\n\t\t\t}\n\n\t\t},\n\n\t\tmoveTo: function ( x, y ) {\n\n\t\t\tthis.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?\n\n\t\t},\n\n\t\tlineTo: function ( x, y ) {\n\n\t\t\tvar curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( x, y );\n\n\t\t},\n\n\t\tquadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {\n\n\t\t\tvar curve = new QuadraticBezierCurve(\n\t\t\t\tthis.currentPoint.clone(),\n\t\t\t\tnew Vector2( aCPx, aCPy ),\n\t\t\t\tnew Vector2( aX, aY )\n\t\t\t);\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( aX, aY );\n\n\t\t},\n\n\t\tbezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {\n\n\t\t\tvar curve = new CubicBezierCurve(\n\t\t\t\tthis.currentPoint.clone(),\n\t\t\t\tnew Vector2( aCP1x, aCP1y ),\n\t\t\t\tnew Vector2( aCP2x, aCP2y ),\n\t\t\t\tnew Vector2( aX, aY )\n\t\t\t);\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( aX, aY );\n\n\t\t},\n\n\t\tsplineThru: function ( pts /*Array of Vector*/ ) {\n\n\t\t\tvar npts = [ this.currentPoint.clone() ].concat( pts );\n\n\t\t\tvar curve = new SplineCurve( npts );\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.copy( pts[ pts.length - 1 ] );\n\n\t\t},\n\n\t\tarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\t\tvar x0 = this.currentPoint.x;\n\t\t\tvar y0 = this.currentPoint.y;\n\n\t\t\tthis.absarc( aX + x0, aY + y0, aRadius,\n\t\t\t\taStartAngle, aEndAngle, aClockwise );\n\n\t\t},\n\n\t\tabsarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\t\tthis.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );\n\n\t\t},\n\n\t\tellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\t\tvar x0 = this.currentPoint.x;\n\t\t\tvar y0 = this.currentPoint.y;\n\n\t\t\tthis.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );\n\n\t\t},\n\n\t\tabsellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\t\tvar curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );\n\n\t\t\tif ( this.curves.length > 0 ) {\n\n\t\t\t\t// if a previous curve is present, attempt to join\n\t\t\t\tvar firstPoint = curve.getPoint( 0 );\n\n\t\t\t\tif ( ! firstPoint.equals( this.currentPoint ) ) {\n\n\t\t\t\t\tthis.lineTo( firstPoint.x, firstPoint.y );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tvar lastPoint = curve.getPoint( 1 );\n\t\t\tthis.currentPoint.copy( lastPoint );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tCurvePath.prototype.copy.call( this, source );\n\n\t\t\tthis.currentPoint.copy( source.currentPoint );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = CurvePath.prototype.toJSON.call( this );\n\n\t\t\tdata.currentPoint = this.currentPoint.toArray();\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tCurvePath.prototype.fromJSON.call( this, json );\n\n\t\t\tthis.currentPoint.fromArray( json.currentPoint );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Defines a 2d shape plane using paths.\n\t **/\n\n\t// STEP 1 Create a path.\n\t// STEP 2 Turn path into shape.\n\t// STEP 3 ExtrudeGeometry takes in Shape/Shapes\n\t// STEP 3a - Extract points from each shape, turn to vertices\n\t// STEP 3b - Triangulate each shape, add faces.\n\n\tfunction Shape( points ) {\n\n\t\tPath.call( this, points );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.type = 'Shape';\n\n\t\tthis.holes = [];\n\n\t}\n\n\tShape.prototype = Object.assign( Object.create( Path.prototype ), {\n\n\t\tconstructor: Shape,\n\n\t\tgetPointsHoles: function ( divisions ) {\n\n\t\t\tvar holesPts = [];\n\n\t\t\tfor ( var i = 0, l = this.holes.length; i < l; i ++ ) {\n\n\t\t\t\tholesPts[ i ] = this.holes[ i ].getPoints( divisions );\n\n\t\t\t}\n\n\t\t\treturn holesPts;\n\n\t\t},\n\n\t\t// get points of shape and holes (keypoints based on segments parameter)\n\n\t\textractPoints: function ( divisions ) {\n\n\t\t\treturn {\n\n\t\t\t\tshape: this.getPoints( divisions ),\n\t\t\t\tholes: this.getPointsHoles( divisions )\n\n\t\t\t};\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tPath.prototype.copy.call( this, source );\n\n\t\t\tthis.holes = [];\n\n\t\t\tfor ( var i = 0, l = source.holes.length; i < l; i ++ ) {\n\n\t\t\t\tvar hole = source.holes[ i ];\n\n\t\t\t\tthis.holes.push( hole.clone() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = Path.prototype.toJSON.call( this );\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.holes = [];\n\n\t\t\tfor ( var i = 0, l = this.holes.length; i < l; i ++ ) {\n\n\t\t\t\tvar hole = this.holes[ i ];\n\t\t\t\tdata.holes.push( hole.toJSON() );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tPath.prototype.fromJSON.call( this, json );\n\n\t\t\tthis.uuid = json.uuid;\n\t\t\tthis.holes = [];\n\n\t\t\tfor ( var i = 0, l = json.holes.length; i < l; i ++ ) {\n\n\t\t\t\tvar hole = json.holes[ i ];\n\t\t\t\tthis.holes.push( new Path().fromJSON( hole ) );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Light( color, intensity ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Light';\n\n\t\tthis.color = new Color( color );\n\t\tthis.intensity = intensity !== undefined ? intensity : 1;\n\n\t\tthis.receiveShadow = undefined;\n\n\t}\n\n\tLight.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Light,\n\n\t\tisLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.color.copy( source.color );\n\t\t\tthis.intensity = source.intensity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.color = this.color.getHex();\n\t\t\tdata.object.intensity = this.intensity;\n\n\t\t\tif ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();\n\n\t\t\tif ( this.distance !== undefined ) data.object.distance = this.distance;\n\t\t\tif ( this.angle !== undefined ) data.object.angle = this.angle;\n\t\t\tif ( this.decay !== undefined ) data.object.decay = this.decay;\n\t\t\tif ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;\n\n\t\t\tif ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction HemisphereLight( skyColor, groundColor, intensity ) {\n\n\t\tLight.call( this, skyColor, intensity );\n\n\t\tthis.type = 'HemisphereLight';\n\n\t\tthis.castShadow = undefined;\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.groundColor = new Color( groundColor );\n\n\t}\n\n\tHemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: HemisphereLight,\n\n\t\tisHemisphereLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.groundColor.copy( source.groundColor );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LightShadow( camera ) {\n\n\t\tthis.camera = camera;\n\n\t\tthis.bias = 0;\n\t\tthis.radius = 1;\n\n\t\tthis.mapSize = new Vector2( 512, 512 );\n\n\t\tthis.map = null;\n\t\tthis.matrix = new Matrix4();\n\n\t}\n\n\tObject.assign( LightShadow.prototype, {\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.camera = source.camera.clone();\n\n\t\t\tthis.bias = source.bias;\n\t\t\tthis.radius = source.radius;\n\n\t\t\tthis.mapSize.copy( source.mapSize );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar object = {};\n\n\t\t\tif ( this.bias !== 0 ) object.bias = this.bias;\n\t\t\tif ( this.radius !== 1 ) object.radius = this.radius;\n\t\t\tif ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();\n\n\t\t\tobject.camera = this.camera.toJSON( false ).object;\n\t\t\tdelete object.camera.matrix;\n\n\t\t\treturn object;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction SpotLightShadow() {\n\n\t\tLightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );\n\n\t}\n\n\tSpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {\n\n\t\tconstructor: SpotLightShadow,\n\n\t\tisSpotLightShadow: true,\n\n\t\tupdate: function ( light ) {\n\n\t\t\tvar camera = this.camera;\n\n\t\t\tvar fov = _Math.RAD2DEG * 2 * light.angle;\n\t\t\tvar aspect = this.mapSize.width / this.mapSize.height;\n\t\t\tvar far = light.distance || camera.far;\n\n\t\t\tif ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {\n\n\t\t\t\tcamera.fov = fov;\n\t\t\t\tcamera.aspect = aspect;\n\t\t\t\tcamera.far = far;\n\t\t\t\tcamera.updateProjectionMatrix();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction SpotLight( color, intensity, distance, angle, penumbra, decay ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'SpotLight';\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.target = new Object3D();\n\n\t\tObject.defineProperty( this, 'power', {\n\t\t\tget: function () {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\treturn this.intensity * Math.PI;\n\n\t\t\t},\n\t\t\tset: function ( power ) {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\tthis.intensity = power / Math.PI;\n\n\t\t\t}\n\t\t} );\n\n\t\tthis.distance = ( distance !== undefined ) ? distance : 0;\n\t\tthis.angle = ( angle !== undefined ) ? angle : Math.PI / 3;\n\t\tthis.penumbra = ( penumbra !== undefined ) ? penumbra : 0;\n\t\tthis.decay = ( decay !== undefined ) ? decay : 1;\t// for physically correct lights, should be 2.\n\n\t\tthis.shadow = new SpotLightShadow();\n\n\t}\n\n\tSpotLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: SpotLight,\n\n\t\tisSpotLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.distance = source.distance;\n\t\t\tthis.angle = source.angle;\n\t\t\tthis.penumbra = source.penumbra;\n\t\t\tthis.decay = source.decay;\n\n\t\t\tthis.target = source.target.clone();\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction PointLight( color, intensity, distance, decay ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'PointLight';\n\n\t\tObject.defineProperty( this, 'power', {\n\t\t\tget: function () {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\treturn this.intensity * 4 * Math.PI;\n\n\t\t\t},\n\t\t\tset: function ( power ) {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\tthis.intensity = power / ( 4 * Math.PI );\n\n\t\t\t}\n\t\t} );\n\n\t\tthis.distance = ( distance !== undefined ) ? distance : 0;\n\t\tthis.decay = ( decay !== undefined ) ? decay : 1;\t// for physically correct lights, should be 2.\n\n\t\tthis.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );\n\n\t}\n\n\tPointLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: PointLight,\n\n\t\tisPointLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.distance = source.distance;\n\t\t\tthis.decay = source.decay;\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction DirectionalLightShadow( ) {\n\n\t\tLightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );\n\n\t}\n\n\tDirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {\n\n\t\tconstructor: DirectionalLightShadow\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction DirectionalLight( color, intensity ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'DirectionalLight';\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.target = new Object3D();\n\n\t\tthis.shadow = new DirectionalLightShadow();\n\n\t}\n\n\tDirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: DirectionalLight,\n\n\t\tisDirectionalLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.target = source.target.clone();\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AmbientLight( color, intensity ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'AmbientLight';\n\n\t\tthis.castShadow = undefined;\n\n\t}\n\n\tAmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: AmbientLight,\n\n\t\tisAmbientLight: true\n\n\t} );\n\n\t/**\n\t * @author abelnation / http://github.com/abelnation\n\t */\n\n\tfunction RectAreaLight( color, intensity, width, height ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'RectAreaLight';\n\n\t\tthis.width = ( width !== undefined ) ? width : 10;\n\t\tthis.height = ( height !== undefined ) ? height : 10;\n\n\t}\n\n\tRectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: RectAreaLight,\n\n\t\tisRectAreaLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.width = source.width;\n\t\t\tthis.height = source.height;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Light.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.width = this.width;\n\t\t\tdata.object.height = this.height;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t */\n\n\tvar AnimationUtils = {\n\n\t\t// same as Array.prototype.slice, but also works on typed arrays\n\t\tarraySlice: function ( array, from, to ) {\n\n\t\t\tif ( AnimationUtils.isTypedArray( array ) ) {\n\n\t\t\t\t// in ios9 array.subarray(from, undefined) will return empty array\n\t\t\t\t// but array.subarray(from) or array.subarray(from, len) is correct\n\t\t\t\treturn new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );\n\n\t\t\t}\n\n\t\t\treturn array.slice( from, to );\n\n\t\t},\n\n\t\t// converts an array to a specific type\n\t\tconvertArray: function ( array, type, forceClone ) {\n\n\t\t\tif ( ! array || // let 'undefined' and 'null' pass\n\t\t\t\t\t! forceClone && array.constructor === type ) return array;\n\n\t\t\tif ( typeof type.BYTES_PER_ELEMENT === 'number' ) {\n\n\t\t\t\treturn new type( array ); // create typed array\n\n\t\t\t}\n\n\t\t\treturn Array.prototype.slice.call( array ); // create Array\n\n\t\t},\n\n\t\tisTypedArray: function ( object ) {\n\n\t\t\treturn ArrayBuffer.isView( object ) &&\n\t\t\t\t\t! ( object instanceof DataView );\n\n\t\t},\n\n\t\t// returns an array by which times and values can be sorted\n\t\tgetKeyframeOrder: function ( times ) {\n\n\t\t\tfunction compareTime( i, j ) {\n\n\t\t\t\treturn times[ i ] - times[ j ];\n\n\t\t\t}\n\n\t\t\tvar n = times.length;\n\t\t\tvar result = new Array( n );\n\t\t\tfor ( var i = 0; i !== n; ++ i ) result[ i ] = i;\n\n\t\t\tresult.sort( compareTime );\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// uses the array previously returned by 'getKeyframeOrder' to sort data\n\t\tsortedArray: function ( values, stride, order ) {\n\n\t\t\tvar nValues = values.length;\n\t\t\tvar result = new values.constructor( nValues );\n\n\t\t\tfor ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {\n\n\t\t\t\tvar srcOffset = order[ i ] * stride;\n\n\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\tresult[ dstOffset ++ ] = values[ srcOffset + j ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// function for parsing AOS keyframe formats\n\t\tflattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {\n\n\t\t\tvar i = 1, key = jsonKeys[ 0 ];\n\n\t\t\twhile ( key !== undefined && key[ valuePropertyName ] === undefined ) {\n\n\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t}\n\n\t\t\tif ( key === undefined ) return; // no data\n\n\t\t\tvar value = key[ valuePropertyName ];\n\t\t\tif ( value === undefined ) return; // no data\n\n\t\t\tif ( Array.isArray( value ) ) {\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalues.push.apply( values, value ); // push all elements\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t} else if ( value.toArray !== undefined ) {\n\n\t\t\t\t// ...assume THREE.Math-ish\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalue.toArray( values, values.length );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t} else {\n\n\t\t\t\t// otherwise push as-is\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalues.push( value );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\t/**\n\t * Abstract base class of interpolants over parametric samples.\n\t *\n\t * The parameter domain is one dimensional, typically the time or a path\n\t * along a curve defined by the data.\n\t *\n\t * The sample values can have any dimensionality and derived classes may\n\t * apply special interpretations to the data.\n\t *\n\t * This class provides the interval seek in a Template Method, deferring\n\t * the actual interpolation to derived classes.\n\t *\n\t * Time complexity is O(1) for linear access crossing at most two points\n\t * and O(log N) for random access, where N is the number of positions.\n\t *\n\t * References:\n\t *\n\t * \t\thttp://www.oodesign.com/template-method-pattern.html\n\t *\n\t * @author tschw\n\t */\n\n\tfunction Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tthis.parameterPositions = parameterPositions;\n\t\tthis._cachedIndex = 0;\n\n\t\tthis.resultBuffer = resultBuffer !== undefined ?\n\t\t\tresultBuffer : new sampleValues.constructor( sampleSize );\n\t\tthis.sampleValues = sampleValues;\n\t\tthis.valueSize = sampleSize;\n\n\t}\n\n\tObject.assign( Interpolant.prototype, {\n\n\t\tevaluate: function ( t ) {\n\n\t\t\tvar pp = this.parameterPositions,\n\t\t\t\ti1 = this._cachedIndex,\n\n\t\t\t\tt1 = pp[ i1 ],\n\t\t\t\tt0 = pp[ i1 - 1 ];\n\n\t\t\tvalidate_interval: {\n\n\t\t\t\tseek: {\n\n\t\t\t\t\tvar right;\n\n\t\t\t\t\tlinear_scan: {\n\n\t\t\t\t\t\t//- See http://jsperf.com/comparison-to-undefined/3\n\t\t\t\t\t\t//- slower code:\n\t\t\t\t\t\t//-\n\t\t\t\t\t\t//- \t\t\t\tif ( t >= t1 || t1 === undefined ) {\n\t\t\t\t\t\tforward_scan: if ( ! ( t < t1 ) ) {\n\n\t\t\t\t\t\t\tfor ( var giveUpAt = i1 + 2; ; ) {\n\n\t\t\t\t\t\t\t\tif ( t1 === undefined ) {\n\n\t\t\t\t\t\t\t\t\tif ( t < t0 ) break forward_scan;\n\n\t\t\t\t\t\t\t\t\t// after end\n\n\t\t\t\t\t\t\t\t\ti1 = pp.length;\n\t\t\t\t\t\t\t\t\tthis._cachedIndex = i1;\n\t\t\t\t\t\t\t\t\treturn this.afterEnd_( i1 - 1, t, t0 );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif ( i1 === giveUpAt ) break; // this loop\n\n\t\t\t\t\t\t\t\tt0 = t1;\n\t\t\t\t\t\t\t\tt1 = pp[ ++ i1 ];\n\n\t\t\t\t\t\t\t\tif ( t < t1 ) {\n\n\t\t\t\t\t\t\t\t\t// we have arrived at the sought interval\n\t\t\t\t\t\t\t\t\tbreak seek;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// prepare binary search on the right side of the index\n\t\t\t\t\t\t\tright = pp.length;\n\t\t\t\t\t\t\tbreak linear_scan;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t//- slower code:\n\t\t\t\t\t\t//-\t\t\t\t\tif ( t < t0 || t0 === undefined ) {\n\t\t\t\t\t\tif ( ! ( t >= t0 ) ) {\n\n\t\t\t\t\t\t\t// looping?\n\n\t\t\t\t\t\t\tvar t1global = pp[ 1 ];\n\n\t\t\t\t\t\t\tif ( t < t1global ) {\n\n\t\t\t\t\t\t\t\ti1 = 2; // + 1, using the scan for the details\n\t\t\t\t\t\t\t\tt0 = t1global;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// linear reverse scan\n\n\t\t\t\t\t\t\tfor ( var giveUpAt = i1 - 2; ; ) {\n\n\t\t\t\t\t\t\t\tif ( t0 === undefined ) {\n\n\t\t\t\t\t\t\t\t\t// before start\n\n\t\t\t\t\t\t\t\t\tthis._cachedIndex = 0;\n\t\t\t\t\t\t\t\t\treturn this.beforeStart_( 0, t, t1 );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif ( i1 === giveUpAt ) break; // this loop\n\n\t\t\t\t\t\t\t\tt1 = t0;\n\t\t\t\t\t\t\t\tt0 = pp[ -- i1 - 1 ];\n\n\t\t\t\t\t\t\t\tif ( t >= t0 ) {\n\n\t\t\t\t\t\t\t\t\t// we have arrived at the sought interval\n\t\t\t\t\t\t\t\t\tbreak seek;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// prepare binary search on the left side of the index\n\t\t\t\t\t\t\tright = i1;\n\t\t\t\t\t\t\ti1 = 0;\n\t\t\t\t\t\t\tbreak linear_scan;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// the interval is valid\n\n\t\t\t\t\t\tbreak validate_interval;\n\n\t\t\t\t\t} // linear scan\n\n\t\t\t\t\t// binary search\n\n\t\t\t\t\twhile ( i1 < right ) {\n\n\t\t\t\t\t\tvar mid = ( i1 + right ) >>> 1;\n\n\t\t\t\t\t\tif ( t < pp[ mid ] ) {\n\n\t\t\t\t\t\t\tright = mid;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\ti1 = mid + 1;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tt1 = pp[ i1 ];\n\t\t\t\t\tt0 = pp[ i1 - 1 ];\n\n\t\t\t\t\t// check boundary cases, again\n\n\t\t\t\t\tif ( t0 === undefined ) {\n\n\t\t\t\t\t\tthis._cachedIndex = 0;\n\t\t\t\t\t\treturn this.beforeStart_( 0, t, t1 );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( t1 === undefined ) {\n\n\t\t\t\t\t\ti1 = pp.length;\n\t\t\t\t\t\tthis._cachedIndex = i1;\n\t\t\t\t\t\treturn this.afterEnd_( i1 - 1, t0, t );\n\n\t\t\t\t\t}\n\n\t\t\t\t} // seek\n\n\t\t\t\tthis._cachedIndex = i1;\n\n\t\t\t\tthis.intervalChanged_( i1, t0, t1 );\n\n\t\t\t} // validate_interval\n\n\t\t\treturn this.interpolate_( i1, t0, t, t1 );\n\n\t\t},\n\n\t\tsettings: null, // optional, subclass-specific settings structure\n\t\t// Note: The indirection allows central control of many interpolants.\n\n\t\t// --- Protected interface\n\n\t\tDefaultSettings_: {},\n\n\t\tgetSettings_: function () {\n\n\t\t\treturn this.settings || this.DefaultSettings_;\n\n\t\t},\n\n\t\tcopySampleValue_: function ( index ) {\n\n\t\t\t// copies a sample value to the result buffer\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\t\t\t\toffset = index * stride;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] = values[ offset + i ];\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// Template methods for derived classes:\n\n\t\tinterpolate_: function ( /* i1, t0, t, t1 */ ) {\n\n\t\t\tthrow new Error( 'call to abstract method' );\n\t\t\t// implementations shall return this.resultBuffer\n\n\t\t},\n\n\t\tintervalChanged_: function ( /* i1, t0, t1 */ ) {\n\n\t\t\t// empty\n\n\t\t}\n\n\t} );\n\n\t//!\\ DECLARE ALIAS AFTER assign prototype !\n\tObject.assign( Interpolant.prototype, {\n\n\t\t//( 0, t, t0 ), returns this.resultBuffer\n\t\tbeforeStart_: Interpolant.prototype.copySampleValue_,\n\n\t\t//( N-1, tN-1, t ), returns this.resultBuffer\n\t\tafterEnd_: Interpolant.prototype.copySampleValue_,\n\n\t} );\n\n\t/**\n\t * Fast and simple cubic spline interpolant.\n\t *\n\t * It was derived from a Hermitian construction setting the first derivative\n\t * at each sample position to the linear slope between neighboring positions\n\t * over their parameter interval.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t\tthis._weightPrev = - 0;\n\t\tthis._offsetPrev = - 0;\n\t\tthis._weightNext = - 0;\n\t\tthis._offsetNext = - 0;\n\n\t}\n\n\tCubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: CubicInterpolant,\n\n\t\tDefaultSettings_: {\n\n\t\t\tendingStart: ZeroCurvatureEnding,\n\t\t\tendingEnd: ZeroCurvatureEnding\n\n\t\t},\n\n\t\tintervalChanged_: function ( i1, t0, t1 ) {\n\n\t\t\tvar pp = this.parameterPositions,\n\t\t\t\tiPrev = i1 - 2,\n\t\t\t\tiNext = i1 + 1,\n\n\t\t\t\ttPrev = pp[ iPrev ],\n\t\t\t\ttNext = pp[ iNext ];\n\n\t\t\tif ( tPrev === undefined ) {\n\n\t\t\t\tswitch ( this.getSettings_().endingStart ) {\n\n\t\t\t\t\tcase ZeroSlopeEnding:\n\n\t\t\t\t\t\t// f'(t0) = 0\n\t\t\t\t\t\tiPrev = i1;\n\t\t\t\t\t\ttPrev = 2 * t0 - t1;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase WrapAroundEnding:\n\n\t\t\t\t\t\t// use the other end of the curve\n\t\t\t\t\t\tiPrev = pp.length - 2;\n\t\t\t\t\t\ttPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault: // ZeroCurvatureEnding\n\n\t\t\t\t\t\t// f''(t0) = 0 a.k.a. Natural Spline\n\t\t\t\t\t\tiPrev = i1;\n\t\t\t\t\t\ttPrev = t1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( tNext === undefined ) {\n\n\t\t\t\tswitch ( this.getSettings_().endingEnd ) {\n\n\t\t\t\t\tcase ZeroSlopeEnding:\n\n\t\t\t\t\t\t// f'(tN) = 0\n\t\t\t\t\t\tiNext = i1;\n\t\t\t\t\t\ttNext = 2 * t1 - t0;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase WrapAroundEnding:\n\n\t\t\t\t\t\t// use the other end of the curve\n\t\t\t\t\t\tiNext = 1;\n\t\t\t\t\t\ttNext = t1 + pp[ 1 ] - pp[ 0 ];\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault: // ZeroCurvatureEnding\n\n\t\t\t\t\t\t// f''(tN) = 0, a.k.a. Natural Spline\n\t\t\t\t\t\tiNext = i1 - 1;\n\t\t\t\t\t\ttNext = t0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar halfDt = ( t1 - t0 ) * 0.5,\n\t\t\t\tstride = this.valueSize;\n\n\t\t\tthis._weightPrev = halfDt / ( t0 - tPrev );\n\t\t\tthis._weightNext = halfDt / ( tNext - t1 );\n\t\t\tthis._offsetPrev = iPrev * stride;\n\t\t\tthis._offsetNext = iNext * stride;\n\n\t\t},\n\n\t\tinterpolate_: function ( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\to1 = i1 * stride,\t\to0 = o1 - stride,\n\t\t\t\toP = this._offsetPrev, \toN = this._offsetNext,\n\t\t\t\twP = this._weightPrev,\twN = this._weightNext,\n\n\t\t\t\tp = ( t - t0 ) / ( t1 - t0 ),\n\t\t\t\tpp = p * p,\n\t\t\t\tppp = pp * p;\n\n\t\t\t// evaluate polynomials\n\n\t\t\tvar sP = - wP * ppp + 2 * wP * pp - wP * p;\n\t\t\tvar s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;\n\t\t\tvar s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;\n\t\t\tvar sN = wN * ppp - wN * pp;\n\n\t\t\t// combine data linearly\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] =\n\t\t\t\t\t\tsP * values[ oP + i ] +\n\t\t\t\t\t\ts0 * values[ o0 + i ] +\n\t\t\t\t\t\ts1 * values[ o1 + i ] +\n\t\t\t\t\t\tsN * values[ oN + i ];\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t */\n\n\tfunction LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: LinearInterpolant,\n\n\t\tinterpolate_: function ( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toffset1 = i1 * stride,\n\t\t\t\toffset0 = offset1 - stride,\n\n\t\t\t\tweight1 = ( t - t0 ) / ( t1 - t0 ),\n\t\t\t\tweight0 = 1 - weight1;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] =\n\t\t\t\t\t\tvalues[ offset0 + i ] * weight0 +\n\t\t\t\t\t\tvalues[ offset1 + i ] * weight1;\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Interpolant that evaluates to the sample value at the position preceeding\n\t * the parameter.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tDiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: DiscreteInterpolant,\n\n\t\tinterpolate_: function ( i1 /*, t0, t, t1 */ ) {\n\n\t\t\treturn this.copySampleValue_( i1 - 1 );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A timed sequence of keyframes for a specific property.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction KeyframeTrack( name, times, values, interpolation ) {\n\n\t\tif ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );\n\t\tif ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );\n\n\t\tthis.name = name;\n\n\t\tthis.times = AnimationUtils.convertArray( times, this.TimeBufferType );\n\t\tthis.values = AnimationUtils.convertArray( values, this.ValueBufferType );\n\n\t\tthis.setInterpolation( interpolation || this.DefaultInterpolation );\n\n\t}\n\n\t// Static methods\n\n\tObject.assign( KeyframeTrack, {\n\n\t\t// Serialization (in static context, because of constructor invocation\n\t\t// and automatic invocation of .toJSON):\n\n\t\ttoJSON: function ( track ) {\n\n\t\t\tvar trackType = track.constructor;\n\n\t\t\tvar json;\n\n\t\t\t// derived classes can define a static toJSON method\n\t\t\tif ( trackType.toJSON !== undefined ) {\n\n\t\t\t\tjson = trackType.toJSON( track );\n\n\t\t\t} else {\n\n\t\t\t\t// by default, we assume the data can be serialized as-is\n\t\t\t\tjson = {\n\n\t\t\t\t\t'name': track.name,\n\t\t\t\t\t'times': AnimationUtils.convertArray( track.times, Array ),\n\t\t\t\t\t'values': AnimationUtils.convertArray( track.values, Array )\n\n\t\t\t\t};\n\n\t\t\t\tvar interpolation = track.getInterpolation();\n\n\t\t\t\tif ( interpolation !== track.DefaultInterpolation ) {\n\n\t\t\t\t\tjson.interpolation = interpolation;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tjson.type = track.ValueTypeName; // mandatory\n\n\t\t\treturn json;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( KeyframeTrack.prototype, {\n\n\t\tconstructor: KeyframeTrack,\n\n\t\tTimeBufferType: Float32Array,\n\n\t\tValueBufferType: Float32Array,\n\n\t\tDefaultInterpolation: InterpolateLinear,\n\n\t\tInterpolantFactoryMethodDiscrete: function ( result ) {\n\n\t\t\treturn new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodLinear: function ( result ) {\n\n\t\t\treturn new LinearInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodSmooth: function ( result ) {\n\n\t\t\treturn new CubicInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tsetInterpolation: function ( interpolation ) {\n\n\t\t\tvar factoryMethod;\n\n\t\t\tswitch ( interpolation ) {\n\n\t\t\t\tcase InterpolateDiscrete:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodDiscrete;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase InterpolateLinear:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodLinear;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase InterpolateSmooth:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodSmooth;\n\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tif ( factoryMethod === undefined ) {\n\n\t\t\t\tvar message = \"unsupported interpolation for \" +\n\t\t\t\t\tthis.ValueTypeName + \" keyframe track named \" + this.name;\n\n\t\t\t\tif ( this.createInterpolant === undefined ) {\n\n\t\t\t\t\t// fall back to default, unless the default itself is messed up\n\t\t\t\t\tif ( interpolation !== this.DefaultInterpolation ) {\n\n\t\t\t\t\t\tthis.setInterpolation( this.DefaultInterpolation );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tthrow new Error( message ); // fatal, in this case\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tconsole.warn( 'THREE.KeyframeTrack:', message );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tthis.createInterpolant = factoryMethod;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetInterpolation: function () {\n\n\t\t\tswitch ( this.createInterpolant ) {\n\n\t\t\t\tcase this.InterpolantFactoryMethodDiscrete:\n\n\t\t\t\t\treturn InterpolateDiscrete;\n\n\t\t\t\tcase this.InterpolantFactoryMethodLinear:\n\n\t\t\t\t\treturn InterpolateLinear;\n\n\t\t\t\tcase this.InterpolantFactoryMethodSmooth:\n\n\t\t\t\t\treturn InterpolateSmooth;\n\n\t\t\t}\n\n\t\t},\n\n\t\tgetValueSize: function () {\n\n\t\t\treturn this.values.length / this.times.length;\n\n\t\t},\n\n\t\t// move all keyframes either forwards or backwards in time\n\t\tshift: function ( timeOffset ) {\n\n\t\t\tif ( timeOffset !== 0.0 ) {\n\n\t\t\t\tvar times = this.times;\n\n\t\t\t\tfor ( var i = 0, n = times.length; i !== n; ++ i ) {\n\n\t\t\t\t\ttimes[ i ] += timeOffset;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// scale all keyframe times by a factor (useful for frame <-> seconds conversions)\n\t\tscale: function ( timeScale ) {\n\n\t\t\tif ( timeScale !== 1.0 ) {\n\n\t\t\t\tvar times = this.times;\n\n\t\t\t\tfor ( var i = 0, n = times.length; i !== n; ++ i ) {\n\n\t\t\t\t\ttimes[ i ] *= timeScale;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// removes keyframes before and after animation without changing any values within the range [startTime, endTime].\n\t\t// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values\n\t\ttrim: function ( startTime, endTime ) {\n\n\t\t\tvar times = this.times,\n\t\t\t\tnKeys = times.length,\n\t\t\t\tfrom = 0,\n\t\t\t\tto = nKeys - 1;\n\n\t\t\twhile ( from !== nKeys && times[ from ] < startTime ) {\n\n\t\t\t\t++ from;\n\n\t\t\t}\n\n\t\t\twhile ( to !== - 1 && times[ to ] > endTime ) {\n\n\t\t\t\t-- to;\n\n\t\t\t}\n\n\t\t\t++ to; // inclusive -> exclusive bound\n\n\t\t\tif ( from !== 0 || to !== nKeys ) {\n\n\t\t\t\t// empty tracks are forbidden, so keep at least one keyframe\n\t\t\t\tif ( from >= to ) to = Math.max( to, 1 ), from = to - 1;\n\n\t\t\t\tvar stride = this.getValueSize();\n\t\t\t\tthis.times = AnimationUtils.arraySlice( times, from, to );\n\t\t\t\tthis.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable\n\t\tvalidate: function () {\n\n\t\t\tvar valid = true;\n\n\t\t\tvar valueSize = this.getValueSize();\n\t\t\tif ( valueSize - Math.floor( valueSize ) !== 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );\n\t\t\t\tvalid = false;\n\n\t\t\t}\n\n\t\t\tvar times = this.times,\n\t\t\t\tvalues = this.values,\n\n\t\t\t\tnKeys = times.length;\n\n\t\t\tif ( nKeys === 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Track is empty.', this );\n\t\t\t\tvalid = false;\n\n\t\t\t}\n\n\t\t\tvar prevTime = null;\n\n\t\t\tfor ( var i = 0; i !== nKeys; i ++ ) {\n\n\t\t\t\tvar currTime = times[ i ];\n\n\t\t\t\tif ( typeof currTime === 'number' && isNaN( currTime ) ) {\n\n\t\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );\n\t\t\t\t\tvalid = false;\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tif ( prevTime !== null && prevTime > currTime ) {\n\n\t\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );\n\t\t\t\t\tvalid = false;\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tprevTime = currTime;\n\n\t\t\t}\n\n\t\t\tif ( values !== undefined ) {\n\n\t\t\t\tif ( AnimationUtils.isTypedArray( values ) ) {\n\n\t\t\t\t\tfor ( var i = 0, n = values.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tvar value = values[ i ];\n\n\t\t\t\t\t\tif ( isNaN( value ) ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );\n\t\t\t\t\t\t\tvalid = false;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn valid;\n\n\t\t},\n\n\t\t// removes equivalent sequential keys as common in morph target sequences\n\t\t// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)\n\t\toptimize: function () {\n\n\t\t\tvar times = this.times,\n\t\t\t\tvalues = this.values,\n\t\t\t\tstride = this.getValueSize(),\n\n\t\t\t\tsmoothInterpolation = this.getInterpolation() === InterpolateSmooth,\n\n\t\t\t\twriteIndex = 1,\n\t\t\t\tlastIndex = times.length - 1;\n\n\t\t\tfor ( var i = 1; i < lastIndex; ++ i ) {\n\n\t\t\t\tvar keep = false;\n\n\t\t\t\tvar time = times[ i ];\n\t\t\t\tvar timeNext = times[ i + 1 ];\n\n\t\t\t\t// remove adjacent keyframes scheduled at the same time\n\n\t\t\t\tif ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {\n\n\t\t\t\t\tif ( ! smoothInterpolation ) {\n\n\t\t\t\t\t\t// remove unnecessary keyframes same as their neighbors\n\n\t\t\t\t\t\tvar offset = i * stride,\n\t\t\t\t\t\t\toffsetP = offset - stride,\n\t\t\t\t\t\t\toffsetN = offset + stride;\n\n\t\t\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\t\t\tvar value = values[ offset + j ];\n\n\t\t\t\t\t\t\tif ( value !== values[ offsetP + j ] ||\n\t\t\t\t\t\t\t\tvalue !== values[ offsetN + j ] ) {\n\n\t\t\t\t\t\t\t\tkeep = true;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tkeep = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// in-place compaction\n\n\t\t\t\tif ( keep ) {\n\n\t\t\t\t\tif ( i !== writeIndex ) {\n\n\t\t\t\t\t\ttimes[ writeIndex ] = times[ i ];\n\n\t\t\t\t\t\tvar readOffset = i * stride,\n\t\t\t\t\t\t\twriteOffset = writeIndex * stride;\n\n\t\t\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\t\t\tvalues[ writeOffset + j ] = values[ readOffset + j ];\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\t++ writeIndex;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// flush last keyframe (compaction looks ahead)\n\n\t\t\tif ( lastIndex > 0 ) {\n\n\t\t\t\ttimes[ writeIndex ] = times[ lastIndex ];\n\n\t\t\t\tfor ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\tvalues[ writeOffset + j ] = values[ readOffset + j ];\n\n\t\t\t\t}\n\n\t\t\t\t++ writeIndex;\n\n\t\t\t}\n\n\t\t\tif ( writeIndex !== times.length ) {\n\n\t\t\t\tthis.times = AnimationUtils.arraySlice( times, 0, writeIndex );\n\t\t\t\tthis.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of Boolean keyframe values.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction BooleanKeyframeTrack( name, times, values ) {\n\n\t\tKeyframeTrack.call( this, name, times, values );\n\n\t}\n\n\tBooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: BooleanKeyframeTrack,\n\n\t\tValueTypeName: 'bool',\n\t\tValueBufferType: Array,\n\n\t\tDefaultInterpolation: InterpolateDiscrete,\n\n\t\tInterpolantFactoryMethodLinear: undefined,\n\t\tInterpolantFactoryMethodSmooth: undefined\n\n\t\t// Note: Actually this track could have a optimized / compressed\n\t\t// representation of a single value and a custom interpolant that\n\t\t// computes \"firstValue ^ isOdd( index )\".\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of keyframe values that represent color.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction ColorKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: ColorKeyframeTrack,\n\n\t\tValueTypeName: 'color'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t\t// Note: Very basic implementation and nothing special yet.\n\t\t// However, this is the place for color space parameterization.\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of numeric keyframe values.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction NumberKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tNumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: NumberKeyframeTrack,\n\n\t\tValueTypeName: 'number'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t} );\n\n\t/**\n\t * Spherical linear unit quaternion interpolant.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tQuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: QuaternionLinearInterpolant,\n\n\t\tinterpolate_: function ( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toffset = i1 * stride,\n\n\t\t\t\talpha = ( t - t0 ) / ( t1 - t0 );\n\n\t\t\tfor ( var end = offset + stride; offset !== end; offset += 4 ) {\n\n\t\t\t\tQuaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of quaternion keyframe values.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction QuaternionKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tQuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: QuaternionKeyframeTrack,\n\n\t\tValueTypeName: 'quaternion',\n\n\t\t// ValueBufferType is inherited\n\n\t\tDefaultInterpolation: InterpolateLinear,\n\n\t\tInterpolantFactoryMethodLinear: function ( result ) {\n\n\t\t\treturn new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodSmooth: undefined // not yet implemented\n\n\t} );\n\n\t/**\n\t *\n\t * A Track that interpolates Strings\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction StringKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tStringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: StringKeyframeTrack,\n\n\t\tValueTypeName: 'string',\n\t\tValueBufferType: Array,\n\n\t\tDefaultInterpolation: InterpolateDiscrete,\n\n\t\tInterpolantFactoryMethodLinear: undefined,\n\n\t\tInterpolantFactoryMethodSmooth: undefined\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of vectored keyframe values.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction VectorKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tVectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: VectorKeyframeTrack,\n\n\t\tValueTypeName: 'vector'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t} );\n\n\t/**\n\t *\n\t * Reusable set of Tracks that represent an animation.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t */\n\n\tfunction AnimationClip( name, duration, tracks ) {\n\n\t\tthis.name = name;\n\t\tthis.tracks = tracks;\n\t\tthis.duration = ( duration !== undefined ) ? duration : - 1;\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\t// this means it should figure out its duration by scanning the tracks\n\t\tif ( this.duration < 0 ) {\n\n\t\t\tthis.resetDuration();\n\n\t\t}\n\n\t}\n\n\tfunction getTrackTypeForValueTypeName( typeName ) {\n\n\t\tswitch ( typeName.toLowerCase() ) {\n\n\t\t\tcase 'scalar':\n\t\t\tcase 'double':\n\t\t\tcase 'float':\n\t\t\tcase 'number':\n\t\t\tcase 'integer':\n\n\t\t\t\treturn NumberKeyframeTrack;\n\n\t\t\tcase 'vector':\n\t\t\tcase 'vector2':\n\t\t\tcase 'vector3':\n\t\t\tcase 'vector4':\n\n\t\t\t\treturn VectorKeyframeTrack;\n\n\t\t\tcase 'color':\n\n\t\t\t\treturn ColorKeyframeTrack;\n\n\t\t\tcase 'quaternion':\n\n\t\t\t\treturn QuaternionKeyframeTrack;\n\n\t\t\tcase 'bool':\n\t\t\tcase 'boolean':\n\n\t\t\t\treturn BooleanKeyframeTrack;\n\n\t\t\tcase 'string':\n\n\t\t\t\treturn StringKeyframeTrack;\n\n\t\t}\n\n\t\tthrow new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );\n\n\t}\n\n\tfunction parseKeyframeTrack( json ) {\n\n\t\tif ( json.type === undefined ) {\n\n\t\t\tthrow new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );\n\n\t\t}\n\n\t\tvar trackType = getTrackTypeForValueTypeName( json.type );\n\n\t\tif ( json.times === undefined ) {\n\n\t\t\tvar times = [], values = [];\n\n\t\t\tAnimationUtils.flattenJSON( json.keys, times, values, 'value' );\n\n\t\t\tjson.times = times;\n\t\t\tjson.values = values;\n\n\t\t}\n\n\t\t// derived classes can define a static parse method\n\t\tif ( trackType.parse !== undefined ) {\n\n\t\t\treturn trackType.parse( json );\n\n\t\t} else {\n\n\t\t\t// by default, we assume a constructor compatible with the base\n\t\t\treturn new trackType( json.name, json.times, json.values, json.interpolation );\n\n\t\t}\n\n\t}\n\n\tObject.assign( AnimationClip, {\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar tracks = [],\n\t\t\t\tjsonTracks = json.tracks,\n\t\t\t\tframeTime = 1.0 / ( json.fps || 1.0 );\n\n\t\t\tfor ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {\n\n\t\t\t\ttracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) );\n\n\t\t\t}\n\n\t\t\treturn new AnimationClip( json.name, json.duration, tracks );\n\n\t\t},\n\n\t\ttoJSON: function ( clip ) {\n\n\t\t\tvar tracks = [],\n\t\t\t\tclipTracks = clip.tracks;\n\n\t\t\tvar json = {\n\n\t\t\t\t'name': clip.name,\n\t\t\t\t'duration': clip.duration,\n\t\t\t\t'tracks': tracks,\n\t\t\t\t'uuid': clip.uuid\n\n\t\t\t};\n\n\t\t\tfor ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {\n\n\t\t\t\ttracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );\n\n\t\t\t}\n\n\t\t\treturn json;\n\n\t\t},\n\n\t\tCreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {\n\n\t\t\tvar numMorphTargets = morphTargetSequence.length;\n\t\t\tvar tracks = [];\n\n\t\t\tfor ( var i = 0; i < numMorphTargets; i ++ ) {\n\n\t\t\t\tvar times = [];\n\t\t\t\tvar values = [];\n\n\t\t\t\ttimes.push(\n\t\t\t\t\t( i + numMorphTargets - 1 ) % numMorphTargets,\n\t\t\t\t\ti,\n\t\t\t\t\t( i + 1 ) % numMorphTargets );\n\n\t\t\t\tvalues.push( 0, 1, 0 );\n\n\t\t\t\tvar order = AnimationUtils.getKeyframeOrder( times );\n\t\t\t\ttimes = AnimationUtils.sortedArray( times, 1, order );\n\t\t\t\tvalues = AnimationUtils.sortedArray( values, 1, order );\n\n\t\t\t\t// if there is a key at the first frame, duplicate it as the\n\t\t\t\t// last frame as well for perfect loop.\n\t\t\t\tif ( ! noLoop && times[ 0 ] === 0 ) {\n\n\t\t\t\t\ttimes.push( numMorphTargets );\n\t\t\t\t\tvalues.push( values[ 0 ] );\n\n\t\t\t\t}\n\n\t\t\t\ttracks.push(\n\t\t\t\t\tnew NumberKeyframeTrack(\n\t\t\t\t\t\t'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',\n\t\t\t\t\t\ttimes, values\n\t\t\t\t\t).scale( 1.0 / fps ) );\n\n\t\t\t}\n\n\t\t\treturn new AnimationClip( name, - 1, tracks );\n\n\t\t},\n\n\t\tfindByName: function ( objectOrClipArray, name ) {\n\n\t\t\tvar clipArray = objectOrClipArray;\n\n\t\t\tif ( ! Array.isArray( objectOrClipArray ) ) {\n\n\t\t\t\tvar o = objectOrClipArray;\n\t\t\t\tclipArray = o.geometry && o.geometry.animations || o.animations;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < clipArray.length; i ++ ) {\n\n\t\t\t\tif ( clipArray[ i ].name === name ) {\n\n\t\t\t\t\treturn clipArray[ i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t},\n\n\t\tCreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {\n\n\t\t\tvar animationToMorphTargets = {};\n\n\t\t\t// tested with https://regex101.com/ on trick sequences\n\t\t\t// such flamingo_flyA_003, flamingo_run1_003, crdeath0059\n\t\t\tvar pattern = /^([\\w-]*?)([\\d]+)$/;\n\n\t\t\t// sort morph target names into animation groups based\n\t\t\t// patterns like Walk_001, Walk_002, Run_001, Run_002\n\t\t\tfor ( var i = 0, il = morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\tvar morphTarget = morphTargets[ i ];\n\t\t\t\tvar parts = morphTarget.name.match( pattern );\n\n\t\t\t\tif ( parts && parts.length > 1 ) {\n\n\t\t\t\t\tvar name = parts[ 1 ];\n\n\t\t\t\t\tvar animationMorphTargets = animationToMorphTargets[ name ];\n\t\t\t\t\tif ( ! animationMorphTargets ) {\n\n\t\t\t\t\t\tanimationToMorphTargets[ name ] = animationMorphTargets = [];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tanimationMorphTargets.push( morphTarget );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar clips = [];\n\n\t\t\tfor ( var name in animationToMorphTargets ) {\n\n\t\t\t\tclips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );\n\n\t\t\t}\n\n\t\t\treturn clips;\n\n\t\t},\n\n\t\t// parse the animation.hierarchy format\n\t\tparseAnimation: function ( animation, bones ) {\n\n\t\t\tif ( ! animation ) {\n\n\t\t\t\tconsole.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {\n\n\t\t\t\t// only return track if there are actually keys.\n\t\t\t\tif ( animationKeys.length !== 0 ) {\n\n\t\t\t\t\tvar times = [];\n\t\t\t\t\tvar values = [];\n\n\t\t\t\t\tAnimationUtils.flattenJSON( animationKeys, times, values, propertyName );\n\n\t\t\t\t\t// empty keys are filtered out, so check again\n\t\t\t\t\tif ( times.length !== 0 ) {\n\n\t\t\t\t\t\tdestTracks.push( new trackType( trackName, times, values ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t\tvar tracks = [];\n\n\t\t\tvar clipName = animation.name || 'default';\n\t\t\t// automatic length determination in AnimationClip.\n\t\t\tvar duration = animation.length || - 1;\n\t\t\tvar fps = animation.fps || 30;\n\n\t\t\tvar hierarchyTracks = animation.hierarchy || [];\n\n\t\t\tfor ( var h = 0; h < hierarchyTracks.length; h ++ ) {\n\n\t\t\t\tvar animationKeys = hierarchyTracks[ h ].keys;\n\n\t\t\t\t// skip empty tracks\n\t\t\t\tif ( ! animationKeys || animationKeys.length === 0 ) continue;\n\n\t\t\t\t// process morph targets\n\t\t\t\tif ( animationKeys[ 0 ].morphTargets ) {\n\n\t\t\t\t\t// figure out all morph targets used in this track\n\t\t\t\t\tvar morphTargetNames = {};\n\n\t\t\t\t\tfor ( var k = 0; k < animationKeys.length; k ++ ) {\n\n\t\t\t\t\t\tif ( animationKeys[ k ].morphTargets ) {\n\n\t\t\t\t\t\t\tfor ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {\n\n\t\t\t\t\t\t\t\tmorphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// create a track for each morph target with all zero\n\t\t\t\t\t// morphTargetInfluences except for the keys in which\n\t\t\t\t\t// the morphTarget is named.\n\t\t\t\t\tfor ( var morphTargetName in morphTargetNames ) {\n\n\t\t\t\t\t\tvar times = [];\n\t\t\t\t\t\tvar values = [];\n\n\t\t\t\t\t\tfor ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {\n\n\t\t\t\t\t\t\tvar animationKey = animationKeys[ k ];\n\n\t\t\t\t\t\t\ttimes.push( animationKey.time );\n\t\t\t\t\t\t\tvalues.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tduration = morphTargetNames.length * ( fps || 1.0 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// ...assume skeletal animation\n\n\t\t\t\t\tvar boneName = '.bones[' + bones[ h ].name + ']';\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\tVectorKeyframeTrack, boneName + '.position',\n\t\t\t\t\t\tanimationKeys, 'pos', tracks );\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\tQuaternionKeyframeTrack, boneName + '.quaternion',\n\t\t\t\t\t\tanimationKeys, 'rot', tracks );\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\tVectorKeyframeTrack, boneName + '.scale',\n\t\t\t\t\t\tanimationKeys, 'scl', tracks );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( tracks.length === 0 ) {\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar clip = new AnimationClip( clipName, duration, tracks );\n\n\t\t\treturn clip;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( AnimationClip.prototype, {\n\n\t\tresetDuration: function () {\n\n\t\t\tvar tracks = this.tracks, duration = 0;\n\n\t\t\tfor ( var i = 0, n = tracks.length; i !== n; ++ i ) {\n\n\t\t\t\tvar track = this.tracks[ i ];\n\n\t\t\t\tduration = Math.max( duration, track.times[ track.times.length - 1 ] );\n\n\t\t\t}\n\n\t\t\tthis.duration = duration;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttrim: function () {\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tthis.tracks[ i ].trim( 0, this.duration );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tvalidate: function () {\n\n\t\t\tvar valid = true;\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tvalid = valid && this.tracks[ i ].validate();\n\n\t\t\t}\n\n\t\t\treturn valid;\n\n\t\t},\n\n\t\toptimize: function () {\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tthis.tracks[ i ].optimize();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction MaterialLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\t\tthis.textures = {};\n\n\t}\n\n\tObject.assign( MaterialLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tonLoad( scope.parse( JSON.parse( text ) ) );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetTextures: function ( value ) {\n\n\t\t\tthis.textures = value;\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar textures = this.textures;\n\n\t\t\tfunction getTexture( name ) {\n\n\t\t\t\tif ( textures[ name ] === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.MaterialLoader: Undefined texture', name );\n\n\t\t\t\t}\n\n\t\t\t\treturn textures[ name ];\n\n\t\t\t}\n\n\t\t\tvar material = new Materials[ json.type ]();\n\n\t\t\tif ( json.uuid !== undefined ) material.uuid = json.uuid;\n\t\t\tif ( json.name !== undefined ) material.name = json.name;\n\t\t\tif ( json.color !== undefined ) material.color.setHex( json.color );\n\t\t\tif ( json.roughness !== undefined ) material.roughness = json.roughness;\n\t\t\tif ( json.metalness !== undefined ) material.metalness = json.metalness;\n\t\t\tif ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );\n\t\t\tif ( json.specular !== undefined ) material.specular.setHex( json.specular );\n\t\t\tif ( json.shininess !== undefined ) material.shininess = json.shininess;\n\t\t\tif ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;\n\t\t\tif ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;\n\t\t\tif ( json.uniforms !== undefined ) material.uniforms = json.uniforms;\n\t\t\tif ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;\n\t\t\tif ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;\n\t\t\tif ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;\n\t\t\tif ( json.fog !== undefined ) material.fog = json.fog;\n\t\t\tif ( json.flatShading !== undefined ) material.flatShading = json.flatShading;\n\t\t\tif ( json.blending !== undefined ) material.blending = json.blending;\n\t\t\tif ( json.side !== undefined ) material.side = json.side;\n\t\t\tif ( json.opacity !== undefined ) material.opacity = json.opacity;\n\t\t\tif ( json.transparent !== undefined ) material.transparent = json.transparent;\n\t\t\tif ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;\n\t\t\tif ( json.depthTest !== undefined ) material.depthTest = json.depthTest;\n\t\t\tif ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;\n\t\t\tif ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;\n\t\t\tif ( json.wireframe !== undefined ) material.wireframe = json.wireframe;\n\t\t\tif ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;\n\t\t\tif ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;\n\t\t\tif ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;\n\n\t\t\tif ( json.rotation !== undefined ) material.rotation = json.rotation;\n\n\t\t\tif ( json.linewidth !== 1 ) material.linewidth = json.linewidth;\n\t\t\tif ( json.dashSize !== undefined ) material.dashSize = json.dashSize;\n\t\t\tif ( json.gapSize !== undefined ) material.gapSize = json.gapSize;\n\t\t\tif ( json.scale !== undefined ) material.scale = json.scale;\n\n\t\t\tif ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset;\n\t\t\tif ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor;\n\t\t\tif ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits;\n\n\t\t\tif ( json.skinning !== undefined ) material.skinning = json.skinning;\n\t\t\tif ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;\n\t\t\tif ( json.dithering !== undefined ) material.dithering = json.dithering;\n\n\t\t\tif ( json.visible !== undefined ) material.visible = json.visible;\n\t\t\tif ( json.userData !== undefined ) material.userData = json.userData;\n\n\t\t\t// Deprecated\n\n\t\t\tif ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading\n\n\t\t\t// for PointsMaterial\n\n\t\t\tif ( json.size !== undefined ) material.size = json.size;\n\t\t\tif ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;\n\n\t\t\t// maps\n\n\t\t\tif ( json.map !== undefined ) material.map = getTexture( json.map );\n\n\t\t\tif ( json.alphaMap !== undefined ) {\n\n\t\t\t\tmaterial.alphaMap = getTexture( json.alphaMap );\n\t\t\t\tmaterial.transparent = true;\n\n\t\t\t}\n\n\t\t\tif ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );\n\t\t\tif ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;\n\n\t\t\tif ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );\n\t\t\tif ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType;\n\t\t\tif ( json.normalScale !== undefined ) {\n\n\t\t\t\tvar normalScale = json.normalScale;\n\n\t\t\t\tif ( Array.isArray( normalScale ) === false ) {\n\n\t\t\t\t\t// Blender exporter used to export a scalar. See #7459\n\n\t\t\t\t\tnormalScale = [ normalScale, normalScale ];\n\n\t\t\t\t}\n\n\t\t\t\tmaterial.normalScale = new Vector2().fromArray( normalScale );\n\n\t\t\t}\n\n\t\t\tif ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );\n\t\t\tif ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;\n\t\t\tif ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;\n\n\t\t\tif ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );\n\t\t\tif ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );\n\n\t\t\tif ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );\n\t\t\tif ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;\n\n\t\t\tif ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );\n\n\t\t\tif ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );\n\n\t\t\tif ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;\n\n\t\t\tif ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );\n\t\t\tif ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;\n\n\t\t\tif ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );\n\t\t\tif ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;\n\n\t\t\tif ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );\n\n\t\t\treturn material;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BufferGeometryLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( BufferGeometryLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tonLoad( scope.parse( JSON.parse( text ) ) );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar geometry = new BufferGeometry();\n\n\t\t\tvar index = json.data.index;\n\n\t\t\tif ( index !== undefined ) {\n\n\t\t\t\tvar typedArray = new TYPED_ARRAYS[ index.type ]( index.array );\n\t\t\t\tgeometry.setIndex( new BufferAttribute( typedArray, 1 ) );\n\n\t\t\t}\n\n\t\t\tvar attributes = json.data.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ key ];\n\t\t\t\tvar typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );\n\n\t\t\t\tgeometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );\n\n\t\t\t}\n\n\t\t\tvar groups = json.data.groups || json.data.drawcalls || json.data.offsets;\n\n\t\t\tif ( groups !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, n = groups.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar group = groups[ i ];\n\n\t\t\t\t\tgeometry.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar boundingSphere = json.data.boundingSphere;\n\n\t\t\tif ( boundingSphere !== undefined ) {\n\n\t\t\t\tvar center = new Vector3();\n\n\t\t\t\tif ( boundingSphere.center !== undefined ) {\n\n\t\t\t\t\tcenter.fromArray( boundingSphere.center );\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.boundingSphere = new Sphere( center, boundingSphere.radius );\n\n\t\t\t}\n\n\t\t\treturn geometry;\n\n\t\t}\n\n\t} );\n\n\tvar TYPED_ARRAYS = {\n\t\tInt8Array: Int8Array,\n\t\tUint8Array: Uint8Array,\n\t\t// Workaround for IE11 pre KB2929437. See #11440\n\t\tUint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,\n\t\tInt16Array: Int16Array,\n\t\tUint16Array: Uint16Array,\n\t\tInt32Array: Int32Array,\n\t\tUint32Array: Uint32Array,\n\t\tFloat32Array: Float32Array,\n\t\tFloat64Array: Float64Array\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Loader() {}\n\n\tLoader.Handlers = {\n\n\t\thandlers: [],\n\n\t\tadd: function ( regex, loader ) {\n\n\t\t\tthis.handlers.push( regex, loader );\n\n\t\t},\n\n\t\tget: function ( file ) {\n\n\t\t\tvar handlers = this.handlers;\n\n\t\t\tfor ( var i = 0, l = handlers.length; i < l; i += 2 ) {\n\n\t\t\t\tvar regex = handlers[ i ];\n\t\t\t\tvar loader = handlers[ i + 1 ];\n\n\t\t\t\tif ( regex.test( file ) ) {\n\n\t\t\t\t\treturn loader;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t}\n\n\t};\n\n\tObject.assign( Loader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tonLoadStart: function () {},\n\n\t\tonLoadProgress: function () {},\n\n\t\tonLoadComplete: function () {},\n\n\t\tinitMaterials: function ( materials, texturePath, crossOrigin ) {\n\n\t\t\tvar array = [];\n\n\t\t\tfor ( var i = 0; i < materials.length; ++ i ) {\n\n\t\t\t\tarray[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );\n\n\t\t\t}\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tcreateMaterial: ( function () {\n\n\t\t\tvar BlendingMode = {\n\t\t\t\tNoBlending: NoBlending,\n\t\t\t\tNormalBlending: NormalBlending,\n\t\t\t\tAdditiveBlending: AdditiveBlending,\n\t\t\t\tSubtractiveBlending: SubtractiveBlending,\n\t\t\t\tMultiplyBlending: MultiplyBlending,\n\t\t\t\tCustomBlending: CustomBlending\n\t\t\t};\n\n\t\t\tvar color = new Color();\n\t\t\tvar textureLoader = new TextureLoader();\n\t\t\tvar materialLoader = new MaterialLoader();\n\n\t\t\treturn function createMaterial( m, texturePath, crossOrigin ) {\n\n\t\t\t\t// convert from old material format\n\n\t\t\t\tvar textures = {};\n\n\t\t\t\tfunction loadTexture( path, repeat, offset, wrap, anisotropy ) {\n\n\t\t\t\t\tvar fullPath = texturePath + path;\n\t\t\t\t\tvar loader = Loader.Handlers.get( fullPath );\n\n\t\t\t\t\tvar texture;\n\n\t\t\t\t\tif ( loader !== null ) {\n\n\t\t\t\t\t\ttexture = loader.load( fullPath );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttextureLoader.setCrossOrigin( crossOrigin );\n\t\t\t\t\t\ttexture = textureLoader.load( fullPath );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( repeat !== undefined ) {\n\n\t\t\t\t\t\ttexture.repeat.fromArray( repeat );\n\n\t\t\t\t\t\tif ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;\n\t\t\t\t\t\tif ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\t\t\ttexture.offset.fromArray( offset );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( wrap !== undefined ) {\n\n\t\t\t\t\t\tif ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;\n\t\t\t\t\t\tif ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;\n\n\t\t\t\t\t\tif ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;\n\t\t\t\t\t\tif ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( anisotropy !== undefined ) {\n\n\t\t\t\t\t\ttexture.anisotropy = anisotropy;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar uuid = _Math.generateUUID();\n\n\t\t\t\t\ttextures[ uuid ] = texture;\n\n\t\t\t\t\treturn uuid;\n\n\t\t\t\t}\n\n\t\t\t\t//\n\n\t\t\t\tvar json = {\n\t\t\t\t\tuuid: _Math.generateUUID(),\n\t\t\t\t\ttype: 'MeshLambertMaterial'\n\t\t\t\t};\n\n\t\t\t\tfor ( var name in m ) {\n\n\t\t\t\t\tvar value = m[ name ];\n\n\t\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\t\tcase 'DbgColor':\n\t\t\t\t\t\tcase 'DbgIndex':\n\t\t\t\t\t\tcase 'opticalDensity':\n\t\t\t\t\t\tcase 'illumination':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'DbgName':\n\t\t\t\t\t\t\tjson.name = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'blending':\n\t\t\t\t\t\t\tjson.blending = BlendingMode[ value ];\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorAmbient':\n\t\t\t\t\t\tcase 'mapAmbient':\n\t\t\t\t\t\t\tconsole.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorDiffuse':\n\t\t\t\t\t\t\tjson.color = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorSpecular':\n\t\t\t\t\t\t\tjson.specular = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorEmissive':\n\t\t\t\t\t\t\tjson.emissive = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'specularCoef':\n\t\t\t\t\t\t\tjson.shininess = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'shading':\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapDiffuse':\n\t\t\t\t\t\t\tjson.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapDiffuseRepeat':\n\t\t\t\t\t\tcase 'mapDiffuseOffset':\n\t\t\t\t\t\tcase 'mapDiffuseWrap':\n\t\t\t\t\t\tcase 'mapDiffuseAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapEmissive':\n\t\t\t\t\t\t\tjson.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapEmissiveRepeat':\n\t\t\t\t\t\tcase 'mapEmissiveOffset':\n\t\t\t\t\t\tcase 'mapEmissiveWrap':\n\t\t\t\t\t\tcase 'mapEmissiveAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapLight':\n\t\t\t\t\t\t\tjson.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapLightRepeat':\n\t\t\t\t\t\tcase 'mapLightOffset':\n\t\t\t\t\t\tcase 'mapLightWrap':\n\t\t\t\t\t\tcase 'mapLightAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAO':\n\t\t\t\t\t\t\tjson.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAORepeat':\n\t\t\t\t\t\tcase 'mapAOOffset':\n\t\t\t\t\t\tcase 'mapAOWrap':\n\t\t\t\t\t\tcase 'mapAOAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBump':\n\t\t\t\t\t\t\tjson.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBumpScale':\n\t\t\t\t\t\t\tjson.bumpScale = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBumpRepeat':\n\t\t\t\t\t\tcase 'mapBumpOffset':\n\t\t\t\t\t\tcase 'mapBumpWrap':\n\t\t\t\t\t\tcase 'mapBumpAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormal':\n\t\t\t\t\t\t\tjson.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormalFactor':\n\t\t\t\t\t\t\tjson.normalScale = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormalRepeat':\n\t\t\t\t\t\tcase 'mapNormalOffset':\n\t\t\t\t\t\tcase 'mapNormalWrap':\n\t\t\t\t\t\tcase 'mapNormalAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapSpecular':\n\t\t\t\t\t\t\tjson.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapSpecularRepeat':\n\t\t\t\t\t\tcase 'mapSpecularOffset':\n\t\t\t\t\t\tcase 'mapSpecularWrap':\n\t\t\t\t\t\tcase 'mapSpecularAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapMetalness':\n\t\t\t\t\t\t\tjson.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapMetalnessRepeat':\n\t\t\t\t\t\tcase 'mapMetalnessOffset':\n\t\t\t\t\t\tcase 'mapMetalnessWrap':\n\t\t\t\t\t\tcase 'mapMetalnessAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapRoughness':\n\t\t\t\t\t\t\tjson.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapRoughnessRepeat':\n\t\t\t\t\t\tcase 'mapRoughnessOffset':\n\t\t\t\t\t\tcase 'mapRoughnessWrap':\n\t\t\t\t\t\tcase 'mapRoughnessAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAlpha':\n\t\t\t\t\t\t\tjson.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAlphaRepeat':\n\t\t\t\t\t\tcase 'mapAlphaOffset':\n\t\t\t\t\t\tcase 'mapAlphaWrap':\n\t\t\t\t\t\tcase 'mapAlphaAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'flipSided':\n\t\t\t\t\t\t\tjson.side = BackSide;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'doubleSided':\n\t\t\t\t\t\t\tjson.side = DoubleSide;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'transparency':\n\t\t\t\t\t\t\tconsole.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );\n\t\t\t\t\t\t\tjson.opacity = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'depthTest':\n\t\t\t\t\t\tcase 'depthWrite':\n\t\t\t\t\t\tcase 'colorWrite':\n\t\t\t\t\t\tcase 'opacity':\n\t\t\t\t\t\tcase 'reflectivity':\n\t\t\t\t\t\tcase 'transparent':\n\t\t\t\t\t\tcase 'visible':\n\t\t\t\t\t\tcase 'wireframe':\n\t\t\t\t\t\t\tjson[ name ] = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'vertexColors':\n\t\t\t\t\t\t\tif ( value === true ) json.vertexColors = VertexColors;\n\t\t\t\t\t\t\tif ( value === 'face' ) json.vertexColors = FaceColors;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\tconsole.error( 'THREE.Loader.createMaterial: Unsupported', name, value );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.type === 'MeshBasicMaterial' ) delete json.emissive;\n\t\t\t\tif ( json.type !== 'MeshPhongMaterial' ) delete json.specular;\n\n\t\t\t\tif ( json.opacity < 1 ) json.transparent = true;\n\n\t\t\t\tmaterialLoader.setTextures( textures );\n\n\t\t\t\treturn materialLoader.parse( json );\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * @author Don McCurdy / https://www.donmccurdy.com\n\t */\n\n\tvar LoaderUtils = {\n\n\t\tdecodeText: function ( array ) {\n\n\t\t\tif ( typeof TextDecoder !== 'undefined' ) {\n\n\t\t\t\treturn new TextDecoder().decode( array );\n\n\t\t\t}\n\n\t\t\t// Avoid the String.fromCharCode.apply(null, array) shortcut, which\n\t\t\t// throws a \"maximum call stack size exceeded\" error for large arrays.\n\n\t\t\tvar s = '';\n\n\t\t\tfor ( var i = 0, il = array.length; i < il; i ++ ) {\n\n\t\t\t\t// Implicitly assumes little-endian.\n\t\t\t\ts += String.fromCharCode( array[ i ] );\n\n\t\t\t}\n\n\t\t\t// Merges multi-byte utf-8 characters.\n\t\t\treturn decodeURIComponent( escape( s ) );\n\n\t\t},\n\n\t\textractUrlBase: function ( url ) {\n\n\t\t\tvar index = url.lastIndexOf( '/' );\n\n\t\t\tif ( index === - 1 ) return './';\n\n\t\t\treturn url.substr( 0, index + 1 );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction JSONLoader( manager ) {\n\n\t\tif ( typeof manager === 'boolean' ) {\n\n\t\t\tconsole.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );\n\t\t\tmanager = undefined;\n\n\t\t}\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\tthis.withCredentials = false;\n\n\t}\n\n\tObject.assign( JSONLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar texturePath = this.texturePath && ( typeof this.texturePath === 'string' ) ? this.texturePath : LoaderUtils.extractUrlBase( url );\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setWithCredentials( this.withCredentials );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json = JSON.parse( text );\n\t\t\t\tvar metadata = json.metadata;\n\n\t\t\t\tif ( metadata !== undefined ) {\n\n\t\t\t\t\tvar type = metadata.type;\n\n\t\t\t\t\tif ( type !== undefined ) {\n\n\t\t\t\t\t\tif ( type.toLowerCase() === 'object' ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar object = scope.parse( json, texturePath );\n\t\t\t\tonLoad( object.geometry, object.materials );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetTexturePath: function ( value ) {\n\n\t\t\tthis.texturePath = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tparse: ( function () {\n\n\t\t\tfunction parseModel( json, geometry ) {\n\n\t\t\t\tfunction isBitSet( value, position ) {\n\n\t\t\t\t\treturn value & ( 1 << position );\n\n\t\t\t\t}\n\n\t\t\t\tvar i, j, fi,\n\n\t\t\t\t\toffset, zLength,\n\n\t\t\t\t\tcolorIndex, normalIndex, uvIndex, materialIndex,\n\n\t\t\t\t\ttype,\n\t\t\t\t\tisQuad,\n\t\t\t\t\thasMaterial,\n\t\t\t\t\thasFaceVertexUv,\n\t\t\t\t\thasFaceNormal, hasFaceVertexNormal,\n\t\t\t\t\thasFaceColor, hasFaceVertexColor,\n\n\t\t\t\t\tvertex, face, faceA, faceB, hex, normal,\n\n\t\t\t\t\tuvLayer, uv, u, v,\n\n\t\t\t\t\tfaces = json.faces,\n\t\t\t\t\tvertices = json.vertices,\n\t\t\t\t\tnormals = json.normals,\n\t\t\t\t\tcolors = json.colors,\n\n\t\t\t\t\tscale = json.scale,\n\n\t\t\t\t\tnUvLayers = 0;\n\n\n\t\t\t\tif ( json.uvs !== undefined ) {\n\n\t\t\t\t\t// disregard empty arrays\n\n\t\t\t\t\tfor ( i = 0; i < json.uvs.length; i ++ ) {\n\n\t\t\t\t\t\tif ( json.uvs[ i ].length ) nUvLayers ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\tgeometry.faceVertexUvs[ i ] = [];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\toffset = 0;\n\t\t\t\tzLength = vertices.length;\n\n\t\t\t\twhile ( offset < zLength ) {\n\n\t\t\t\t\tvertex = new Vector3();\n\n\t\t\t\t\tvertex.x = vertices[ offset ++ ] * scale;\n\t\t\t\t\tvertex.y = vertices[ offset ++ ] * scale;\n\t\t\t\t\tvertex.z = vertices[ offset ++ ] * scale;\n\n\t\t\t\t\tgeometry.vertices.push( vertex );\n\n\t\t\t\t}\n\n\t\t\t\toffset = 0;\n\t\t\t\tzLength = faces.length;\n\n\t\t\t\twhile ( offset < zLength ) {\n\n\t\t\t\t\ttype = faces[ offset ++ ];\n\n\t\t\t\t\tisQuad = isBitSet( type, 0 );\n\t\t\t\t\thasMaterial = isBitSet( type, 1 );\n\t\t\t\t\thasFaceVertexUv = isBitSet( type, 3 );\n\t\t\t\t\thasFaceNormal = isBitSet( type, 4 );\n\t\t\t\t\thasFaceVertexNormal = isBitSet( type, 5 );\n\t\t\t\t\thasFaceColor = isBitSet( type, 6 );\n\t\t\t\t\thasFaceVertexColor = isBitSet( type, 7 );\n\n\t\t\t\t\t// console.log(\"type\", type, \"bits\", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);\n\n\t\t\t\t\tif ( isQuad ) {\n\n\t\t\t\t\t\tfaceA = new Face3();\n\t\t\t\t\t\tfaceA.a = faces[ offset ];\n\t\t\t\t\t\tfaceA.b = faces[ offset + 1 ];\n\t\t\t\t\t\tfaceA.c = faces[ offset + 3 ];\n\n\t\t\t\t\t\tfaceB = new Face3();\n\t\t\t\t\t\tfaceB.a = faces[ offset + 1 ];\n\t\t\t\t\t\tfaceB.b = faces[ offset + 2 ];\n\t\t\t\t\t\tfaceB.c = faces[ offset + 3 ];\n\n\t\t\t\t\t\toffset += 4;\n\n\t\t\t\t\t\tif ( hasMaterial ) {\n\n\t\t\t\t\t\t\tmaterialIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tfaceA.materialIndex = materialIndex;\n\t\t\t\t\t\t\tfaceB.materialIndex = materialIndex;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// to get face <=> uv index correspondence\n\n\t\t\t\t\t\tfi = geometry.faces.length;\n\n\t\t\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\t\t\tuvLayer = json.uvs[ i ];\n\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ] = [];\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi + 1 ] = [];\n\n\t\t\t\t\t\t\t\tfor ( j = 0; j < 4; j ++ ) {\n\n\t\t\t\t\t\t\t\t\tuvIndex = faces[ offset ++ ];\n\n\t\t\t\t\t\t\t\t\tu = uvLayer[ uvIndex * 2 ];\n\t\t\t\t\t\t\t\t\tv = uvLayer[ uvIndex * 2 + 1 ];\n\n\t\t\t\t\t\t\t\t\tuv = new Vector2( u, v );\n\n\t\t\t\t\t\t\t\t\tif ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );\n\t\t\t\t\t\t\t\t\tif ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\tfaceA.normal.set(\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tfaceB.normal.copy( faceA.normal );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 4; i ++ ) {\n\n\t\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\t\tnormal = new Vector3(\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t\t);\n\n\n\t\t\t\t\t\t\t\tif ( i !== 2 ) faceA.vertexNormals.push( normal );\n\t\t\t\t\t\t\t\tif ( i !== 0 ) faceB.vertexNormals.push( normal );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\thex = colors[ colorIndex ];\n\n\t\t\t\t\t\t\tfaceA.color.setHex( hex );\n\t\t\t\t\t\t\tfaceB.color.setHex( hex );\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 4; i ++ ) {\n\n\t\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\t\thex = colors[ colorIndex ];\n\n\t\t\t\t\t\t\t\tif ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) );\n\t\t\t\t\t\t\t\tif ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.faces.push( faceA );\n\t\t\t\t\t\tgeometry.faces.push( faceB );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tface = new Face3();\n\t\t\t\t\t\tface.a = faces[ offset ++ ];\n\t\t\t\t\t\tface.b = faces[ offset ++ ];\n\t\t\t\t\t\tface.c = faces[ offset ++ ];\n\n\t\t\t\t\t\tif ( hasMaterial ) {\n\n\t\t\t\t\t\t\tmaterialIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tface.materialIndex = materialIndex;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// to get face <=> uv index correspondence\n\n\t\t\t\t\t\tfi = geometry.faces.length;\n\n\t\t\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\t\t\tuvLayer = json.uvs[ i ];\n\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ] = [];\n\n\t\t\t\t\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t\t\t\tuvIndex = faces[ offset ++ ];\n\n\t\t\t\t\t\t\t\t\tu = uvLayer[ uvIndex * 2 ];\n\t\t\t\t\t\t\t\t\tv = uvLayer[ uvIndex * 2 + 1 ];\n\n\t\t\t\t\t\t\t\t\tuv = new Vector2( u, v );\n\n\t\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ].push( uv );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\tface.normal.set(\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\t\tnormal = new Vector3(\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\t\tface.vertexNormals.push( normal );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tface.color.setHex( colors[ colorIndex ] );\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\t\tface.vertexColors.push( new Color( colors[ colorIndex ] ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.faces.push( face );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseSkin( json, geometry ) {\n\n\t\t\t\tvar influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;\n\n\t\t\t\tif ( json.skinWeights ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {\n\n\t\t\t\t\t\tvar x = json.skinWeights[ i ];\n\t\t\t\t\t\tvar y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;\n\t\t\t\t\t\tvar z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;\n\t\t\t\t\t\tvar w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;\n\n\t\t\t\t\t\tgeometry.skinWeights.push( new Vector4( x, y, z, w ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.skinIndices ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {\n\n\t\t\t\t\t\tvar a = json.skinIndices[ i ];\n\t\t\t\t\t\tvar b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;\n\t\t\t\t\t\tvar c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;\n\t\t\t\t\t\tvar d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;\n\n\t\t\t\t\t\tgeometry.skinIndices.push( new Vector4( a, b, c, d ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.bones = json.bones;\n\n\t\t\t\tif ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {\n\n\t\t\t\t\tconsole.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +\n\t\t\t\t\t\tgeometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseMorphing( json, geometry ) {\n\n\t\t\t\tvar scale = json.scale;\n\n\t\t\t\tif ( json.morphTargets !== undefined ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tgeometry.morphTargets[ i ] = {};\n\t\t\t\t\t\tgeometry.morphTargets[ i ].name = json.morphTargets[ i ].name;\n\t\t\t\t\t\tgeometry.morphTargets[ i ].vertices = [];\n\n\t\t\t\t\t\tvar dstVertices = geometry.morphTargets[ i ].vertices;\n\t\t\t\t\t\tvar srcVertices = json.morphTargets[ i ].vertices;\n\n\t\t\t\t\t\tfor ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {\n\n\t\t\t\t\t\t\tvar vertex = new Vector3();\n\t\t\t\t\t\t\tvertex.x = srcVertices[ v ] * scale;\n\t\t\t\t\t\t\tvertex.y = srcVertices[ v + 1 ] * scale;\n\t\t\t\t\t\t\tvertex.z = srcVertices[ v + 2 ] * scale;\n\n\t\t\t\t\t\t\tdstVertices.push( vertex );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.morphColors !== undefined && json.morphColors.length > 0 ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.JSONLoader: \"morphColors\" no longer supported. Using them as face colors.' );\n\n\t\t\t\t\tvar faces = geometry.faces;\n\t\t\t\t\tvar morphColors = json.morphColors[ 0 ].colors;\n\n\t\t\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tfaces[ i ].color.fromArray( morphColors, i * 3 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseAnimations( json, geometry ) {\n\n\t\t\t\tvar outputAnimations = [];\n\n\t\t\t\t// parse old style Bone/Hierarchy animations\n\t\t\t\tvar animations = [];\n\n\t\t\t\tif ( json.animation !== undefined ) {\n\n\t\t\t\t\tanimations.push( json.animation );\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.animations !== undefined ) {\n\n\t\t\t\t\tif ( json.animations.length ) {\n\n\t\t\t\t\t\tanimations = animations.concat( json.animations );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tanimations.push( json.animations );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var i = 0; i < animations.length; i ++ ) {\n\n\t\t\t\t\tvar clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones );\n\t\t\t\t\tif ( clip ) outputAnimations.push( clip );\n\n\t\t\t\t}\n\n\t\t\t\t// parse implicit morph animations\n\t\t\t\tif ( geometry.morphTargets ) {\n\n\t\t\t\t\t// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.\n\t\t\t\t\tvar morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );\n\t\t\t\t\toutputAnimations = outputAnimations.concat( morphAnimationClips );\n\n\t\t\t\t}\n\n\t\t\t\tif ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;\n\n\t\t\t}\n\n\t\t\treturn function parse( json, texturePath ) {\n\n\t\t\t\tif ( json.data !== undefined ) {\n\n\t\t\t\t\t// Geometry 4.0 spec\n\t\t\t\t\tjson = json.data;\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.scale !== undefined ) {\n\n\t\t\t\t\tjson.scale = 1.0 / json.scale;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tjson.scale = 1.0;\n\n\t\t\t\t}\n\n\t\t\t\tvar geometry = new Geometry();\n\n\t\t\t\tparseModel( json, geometry );\n\t\t\t\tparseSkin( json, geometry );\n\t\t\t\tparseMorphing( json, geometry );\n\t\t\t\tparseAnimations( json, geometry );\n\n\t\t\t\tgeometry.computeFaceNormals();\n\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t\tif ( json.materials === undefined || json.materials.length === 0 ) {\n\n\t\t\t\t\treturn { geometry: geometry };\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );\n\n\t\t\t\t\treturn { geometry: geometry, materials: materials };\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction ObjectLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\t\tthis.texturePath = '';\n\n\t}\n\n\tObject.assign( ObjectLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( this.texturePath === '' ) {\n\n\t\t\t\tthis.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );\n\n\t\t\t}\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json = null;\n\n\t\t\t\ttry {\n\n\t\t\t\t\tjson = JSON.parse( text );\n\n\t\t\t\t} catch ( error ) {\n\n\t\t\t\t\tif ( onError !== undefined ) onError( error );\n\n\t\t\t\t\tconsole.error( 'THREE:ObjectLoader: Can\\'t parse ' + url + '.', error.message );\n\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tvar metadata = json.metadata;\n\n\t\t\t\tif ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {\n\n\t\t\t\t\tconsole.error( 'THREE.ObjectLoader: Can\\'t load ' + url + '. Use THREE.JSONLoader instead.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tscope.parse( json, onLoad );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetTexturePath: function ( value ) {\n\n\t\t\tthis.texturePath = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tparse: function ( json, onLoad ) {\n\n\t\t\tvar shapes = this.parseShape( json.shapes );\n\t\t\tvar geometries = this.parseGeometries( json.geometries, shapes );\n\n\t\t\tvar images = this.parseImages( json.images, function () {\n\n\t\t\t\tif ( onLoad !== undefined ) onLoad( object );\n\n\t\t\t} );\n\n\t\t\tvar textures = this.parseTextures( json.textures, images );\n\t\t\tvar materials = this.parseMaterials( json.materials, textures );\n\n\t\t\tvar object = this.parseObject( json.object, geometries, materials );\n\n\t\t\tif ( json.animations ) {\n\n\t\t\t\tobject.animations = this.parseAnimations( json.animations );\n\n\t\t\t}\n\n\t\t\tif ( json.images === undefined || json.images.length === 0 ) {\n\n\t\t\t\tif ( onLoad !== undefined ) onLoad( object );\n\n\t\t\t}\n\n\t\t\treturn object;\n\n\t\t},\n\n\t\tparseShape: function ( json ) {\n\n\t\t\tvar shapes = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar shape = new Shape().fromJSON( json[ i ] );\n\n\t\t\t\t\tshapes[ shape.uuid ] = shape;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn shapes;\n\n\t\t},\n\n\t\tparseGeometries: function ( json, shapes ) {\n\n\t\t\tvar geometries = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tvar geometryLoader = new JSONLoader();\n\t\t\t\tvar bufferGeometryLoader = new BufferGeometryLoader();\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar geometry;\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tswitch ( data.type ) {\n\n\t\t\t\t\t\tcase 'PlaneGeometry':\n\t\t\t\t\t\tcase 'PlaneBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.width,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'BoxGeometry':\n\t\t\t\t\t\tcase 'BoxBufferGeometry':\n\t\t\t\t\t\tcase 'CubeGeometry': // backwards compatible\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.width,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.depth,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.depthSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'CircleGeometry':\n\t\t\t\t\t\tcase 'CircleBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.segments,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'CylinderGeometry':\n\t\t\t\t\t\tcase 'CylinderBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radiusTop,\n\t\t\t\t\t\t\t\tdata.radiusBottom,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.openEnded,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'ConeGeometry':\n\t\t\t\t\t\tcase 'ConeBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.openEnded,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'SphereGeometry':\n\t\t\t\t\t\tcase 'SphereBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.phiStart,\n\t\t\t\t\t\t\t\tdata.phiLength,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'DodecahedronGeometry':\n\t\t\t\t\t\tcase 'DodecahedronBufferGeometry':\n\t\t\t\t\t\tcase 'IcosahedronGeometry':\n\t\t\t\t\t\tcase 'IcosahedronBufferGeometry':\n\t\t\t\t\t\tcase 'OctahedronGeometry':\n\t\t\t\t\t\tcase 'OctahedronBufferGeometry':\n\t\t\t\t\t\tcase 'TetrahedronGeometry':\n\t\t\t\t\t\tcase 'TetrahedronBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.detail\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'RingGeometry':\n\t\t\t\t\t\tcase 'RingBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.innerRadius,\n\t\t\t\t\t\t\t\tdata.outerRadius,\n\t\t\t\t\t\t\t\tdata.thetaSegments,\n\t\t\t\t\t\t\t\tdata.phiSegments,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'TorusGeometry':\n\t\t\t\t\t\tcase 'TorusBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.tube,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.tubularSegments,\n\t\t\t\t\t\t\t\tdata.arc\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'TorusKnotGeometry':\n\t\t\t\t\t\tcase 'TorusKnotBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.tube,\n\t\t\t\t\t\t\t\tdata.tubularSegments,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.p,\n\t\t\t\t\t\t\t\tdata.q\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'LatheGeometry':\n\t\t\t\t\t\tcase 'LatheBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.points,\n\t\t\t\t\t\t\t\tdata.segments,\n\t\t\t\t\t\t\t\tdata.phiStart,\n\t\t\t\t\t\t\t\tdata.phiLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'PolyhedronGeometry':\n\t\t\t\t\t\tcase 'PolyhedronBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.vertices,\n\t\t\t\t\t\t\t\tdata.indices,\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.details\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'ShapeGeometry':\n\t\t\t\t\t\tcase 'ShapeBufferGeometry':\n\n\t\t\t\t\t\t\tvar geometryShapes = [];\n\n\t\t\t\t\t\t\tfor ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tvar shape = shapes[ data.shapes[ j ] ];\n\n\t\t\t\t\t\t\t\tgeometryShapes.push( shape );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tgeometryShapes,\n\t\t\t\t\t\t\t\tdata.curveSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\n\t\t\t\t\t\tcase 'ExtrudeGeometry':\n\t\t\t\t\t\tcase 'ExtrudeBufferGeometry':\n\n\t\t\t\t\t\t\tvar geometryShapes = [];\n\n\t\t\t\t\t\t\tfor ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tvar shape = shapes[ data.shapes[ j ] ];\n\n\t\t\t\t\t\t\t\tgeometryShapes.push( shape );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tvar extrudePath = data.options.extrudePath;\n\n\t\t\t\t\t\t\tif ( extrudePath !== undefined ) {\n\n\t\t\t\t\t\t\t\tdata.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tgeometryShapes,\n\t\t\t\t\t\t\t\tdata.options\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'BufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = bufferGeometryLoader.parse( data );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'Geometry':\n\n\t\t\t\t\t\t\tgeometry = geometryLoader.parse( data, this.texturePath ).geometry;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Unsupported geometry type \"' + data.type + '\"' );\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tgeometry.uuid = data.uuid;\n\n\t\t\t\t\tif ( data.name !== undefined ) geometry.name = data.name;\n\t\t\t\t\tif ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData;\n\n\t\t\t\t\tgeometries[ data.uuid ] = geometry;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn geometries;\n\n\t\t},\n\n\t\tparseMaterials: function ( json, textures ) {\n\n\t\t\tvar materials = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tvar loader = new MaterialLoader();\n\t\t\t\tloader.setTextures( textures );\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tif ( data.type === 'MultiMaterial' ) {\n\n\t\t\t\t\t\t// Deprecated\n\n\t\t\t\t\t\tvar array = [];\n\n\t\t\t\t\t\tfor ( var j = 0; j < data.materials.length; j ++ ) {\n\n\t\t\t\t\t\t\tarray.push( loader.parse( data.materials[ j ] ) );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tmaterials[ data.uuid ] = array;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tmaterials[ data.uuid ] = loader.parse( data );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn materials;\n\n\t\t},\n\n\t\tparseAnimations: function ( json ) {\n\n\t\t\tvar animations = [];\n\n\t\t\tfor ( var i = 0; i < json.length; i ++ ) {\n\n\t\t\t\tvar data = json[ i ];\n\n\t\t\t\tvar clip = AnimationClip.parse( data );\n\n\t\t\t\tif ( data.uuid !== undefined ) clip.uuid = data.uuid;\n\n\t\t\t\tanimations.push( clip );\n\n\t\t\t}\n\n\t\t\treturn animations;\n\n\t\t},\n\n\t\tparseImages: function ( json, onLoad ) {\n\n\t\t\tvar scope = this;\n\t\t\tvar images = {};\n\n\t\t\tfunction loadImage( url ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\treturn loader.load( url, function () {\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, undefined, function () {\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t\tif ( json !== undefined && json.length > 0 ) {\n\n\t\t\t\tvar manager = new LoadingManager( onLoad );\n\n\t\t\t\tvar loader = new ImageLoader( manager );\n\t\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\t\t\tfor ( var i = 0, il = json.length; i < il; i ++ ) {\n\n\t\t\t\t\tvar image = json[ i ];\n\t\t\t\t\tvar url = image.url;\n\n\t\t\t\t\tif ( Array.isArray( url ) ) {\n\n\t\t\t\t\t\t// load array of images e.g CubeTexture\n\n\t\t\t\t\t\timages[ image.uuid ] = [];\n\n\t\t\t\t\t\tfor ( var j = 0, jl = url.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\tvar currentUrl = url[ j ];\n\n\t\t\t\t\t\t\tvar path = /^(\\/\\/)|([a-z]+:(\\/\\/)?)/i.test( currentUrl ) ? currentUrl : scope.texturePath + currentUrl;\n\n\t\t\t\t\t\t\timages[ image.uuid ].push( loadImage( path ) );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// load single image\n\n\t\t\t\t\t\tvar path = /^(\\/\\/)|([a-z]+:(\\/\\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;\n\n\t\t\t\t\t\timages[ image.uuid ] = loadImage( path );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn images;\n\n\t\t},\n\n\t\tparseTextures: function ( json, images ) {\n\n\t\t\tfunction parseConstant( value, type ) {\n\n\t\t\t\tif ( typeof value === 'number' ) return value;\n\n\t\t\t\tconsole.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );\n\n\t\t\t\treturn type[ value ];\n\n\t\t\t}\n\n\t\t\tvar textures = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tif ( data.image === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: No \"image\" specified for', data.uuid );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( images[ data.image ] === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined image', data.image );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar texture;\n\n\t\t\t\t\tif ( Array.isArray( images[ data.image ] ) ) {\n\n\t\t\t\t\t\ttexture = new CubeTexture( images[ data.image ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttexture = new Texture( images[ data.image ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\ttexture.uuid = data.uuid;\n\n\t\t\t\t\tif ( data.name !== undefined ) texture.name = data.name;\n\n\t\t\t\t\tif ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );\n\n\t\t\t\t\tif ( data.offset !== undefined ) texture.offset.fromArray( data.offset );\n\t\t\t\t\tif ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );\n\t\t\t\t\tif ( data.center !== undefined ) texture.center.fromArray( data.center );\n\t\t\t\t\tif ( data.rotation !== undefined ) texture.rotation = data.rotation;\n\n\t\t\t\t\tif ( data.wrap !== undefined ) {\n\n\t\t\t\t\t\ttexture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );\n\t\t\t\t\t\ttexture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( data.format !== undefined ) texture.format = data.format;\n\n\t\t\t\t\tif ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );\n\t\t\t\t\tif ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );\n\t\t\t\t\tif ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;\n\n\t\t\t\t\tif ( data.flipY !== undefined ) texture.flipY = data.flipY;\n\n\t\t\t\t\ttextures[ data.uuid ] = texture;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn textures;\n\n\t\t},\n\n\t\tparseObject: function ( data, geometries, materials ) {\n\n\t\t\tvar object;\n\n\t\t\tfunction getGeometry( name ) {\n\n\t\t\t\tif ( geometries[ name ] === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined geometry', name );\n\n\t\t\t\t}\n\n\t\t\t\treturn geometries[ name ];\n\n\t\t\t}\n\n\t\t\tfunction getMaterial( name ) {\n\n\t\t\t\tif ( name === undefined ) return undefined;\n\n\t\t\t\tif ( Array.isArray( name ) ) {\n\n\t\t\t\t\tvar array = [];\n\n\t\t\t\t\tfor ( var i = 0, l = name.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tvar uuid = name[ i ];\n\n\t\t\t\t\t\tif ( materials[ uuid ] === undefined ) {\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined material', uuid );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tarray.push( materials[ uuid ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn array;\n\n\t\t\t\t}\n\n\t\t\t\tif ( materials[ name ] === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined material', name );\n\n\t\t\t\t}\n\n\t\t\t\treturn materials[ name ];\n\n\t\t\t}\n\n\t\t\tswitch ( data.type ) {\n\n\t\t\t\tcase 'Scene':\n\n\t\t\t\t\tobject = new Scene();\n\n\t\t\t\t\tif ( data.background !== undefined ) {\n\n\t\t\t\t\t\tif ( Number.isInteger( data.background ) ) {\n\n\t\t\t\t\t\t\tobject.background = new Color( data.background );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( data.fog !== undefined ) {\n\n\t\t\t\t\t\tif ( data.fog.type === 'Fog' ) {\n\n\t\t\t\t\t\t\tobject.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );\n\n\t\t\t\t\t\t} else if ( data.fog.type === 'FogExp2' ) {\n\n\t\t\t\t\t\t\tobject.fog = new FogExp2( data.fog.color, data.fog.density );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'PerspectiveCamera':\n\n\t\t\t\t\tobject = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );\n\n\t\t\t\t\tif ( data.focus !== undefined ) object.focus = data.focus;\n\t\t\t\t\tif ( data.zoom !== undefined ) object.zoom = data.zoom;\n\t\t\t\t\tif ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;\n\t\t\t\t\tif ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;\n\t\t\t\t\tif ( data.view !== undefined ) object.view = Object.assign( {}, data.view );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'OrthographicCamera':\n\n\t\t\t\t\tobject = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );\n\n\t\t\t\t\tif ( data.zoom !== undefined ) object.zoom = data.zoom;\n\t\t\t\t\tif ( data.view !== undefined ) object.view = Object.assign( {}, data.view );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'AmbientLight':\n\n\t\t\t\t\tobject = new AmbientLight( data.color, data.intensity );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'DirectionalLight':\n\n\t\t\t\t\tobject = new DirectionalLight( data.color, data.intensity );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'PointLight':\n\n\t\t\t\t\tobject = new PointLight( data.color, data.intensity, data.distance, data.decay );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'RectAreaLight':\n\n\t\t\t\t\tobject = new RectAreaLight( data.color, data.intensity, data.width, data.height );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'SpotLight':\n\n\t\t\t\t\tobject = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'HemisphereLight':\n\n\t\t\t\t\tobject = new HemisphereLight( data.color, data.groundColor, data.intensity );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'SkinnedMesh':\n\n\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );\n\n\t\t\t\tcase 'Mesh':\n\n\t\t\t\t\tvar geometry = getGeometry( data.geometry );\n\t\t\t\t\tvar material = getMaterial( data.material );\n\n\t\t\t\t\tif ( geometry.bones && geometry.bones.length > 0 ) {\n\n\t\t\t\t\t\tobject = new SkinnedMesh( geometry, material );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tobject = new Mesh( geometry, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'LOD':\n\n\t\t\t\t\tobject = new LOD();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'Line':\n\n\t\t\t\t\tobject = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'LineLoop':\n\n\t\t\t\t\tobject = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'LineSegments':\n\n\t\t\t\t\tobject = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'PointCloud':\n\t\t\t\tcase 'Points':\n\n\t\t\t\t\tobject = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'Sprite':\n\n\t\t\t\t\tobject = new Sprite( getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'Group':\n\n\t\t\t\t\tobject = new Group();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tobject = new Object3D();\n\n\t\t\t}\n\n\t\t\tobject.uuid = data.uuid;\n\n\t\t\tif ( data.name !== undefined ) object.name = data.name;\n\n\t\t\tif ( data.matrix !== undefined ) {\n\n\t\t\t\tobject.matrix.fromArray( data.matrix );\n\n\t\t\t\tif ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate;\n\t\t\t\tif ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale );\n\n\t\t\t} else {\n\n\t\t\t\tif ( data.position !== undefined ) object.position.fromArray( data.position );\n\t\t\t\tif ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );\n\t\t\t\tif ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );\n\t\t\t\tif ( data.scale !== undefined ) object.scale.fromArray( data.scale );\n\n\t\t\t}\n\n\t\t\tif ( data.castShadow !== undefined ) object.castShadow = data.castShadow;\n\t\t\tif ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;\n\n\t\t\tif ( data.shadow ) {\n\n\t\t\t\tif ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;\n\t\t\t\tif ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;\n\t\t\t\tif ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );\n\t\t\t\tif ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );\n\n\t\t\t}\n\n\t\t\tif ( data.visible !== undefined ) object.visible = data.visible;\n\t\t\tif ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled;\n\t\t\tif ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder;\n\t\t\tif ( data.userData !== undefined ) object.userData = data.userData;\n\t\t\tif ( data.layers !== undefined ) object.layers.mask = data.layers;\n\n\t\t\tif ( data.children !== undefined ) {\n\n\t\t\t\tvar children = data.children;\n\n\t\t\t\tfor ( var i = 0; i < children.length; i ++ ) {\n\n\t\t\t\t\tobject.add( this.parseObject( children[ i ], geometries, materials ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( data.type === 'LOD' ) {\n\n\t\t\t\tvar levels = data.levels;\n\n\t\t\t\tfor ( var l = 0; l < levels.length; l ++ ) {\n\n\t\t\t\t\tvar level = levels[ l ];\n\t\t\t\t\tvar child = object.getObjectByProperty( 'uuid', level.object );\n\n\t\t\t\t\tif ( child !== undefined ) {\n\n\t\t\t\t\t\tobject.addLevel( child, level.distance );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn object;\n\n\t\t}\n\n\t} );\n\n\tvar TEXTURE_MAPPING = {\n\t\tUVMapping: UVMapping,\n\t\tCubeReflectionMapping: CubeReflectionMapping,\n\t\tCubeRefractionMapping: CubeRefractionMapping,\n\t\tEquirectangularReflectionMapping: EquirectangularReflectionMapping,\n\t\tEquirectangularRefractionMapping: EquirectangularRefractionMapping,\n\t\tSphericalReflectionMapping: SphericalReflectionMapping,\n\t\tCubeUVReflectionMapping: CubeUVReflectionMapping,\n\t\tCubeUVRefractionMapping: CubeUVRefractionMapping\n\t};\n\n\tvar TEXTURE_WRAPPING = {\n\t\tRepeatWrapping: RepeatWrapping,\n\t\tClampToEdgeWrapping: ClampToEdgeWrapping,\n\t\tMirroredRepeatWrapping: MirroredRepeatWrapping\n\t};\n\n\tvar TEXTURE_FILTER = {\n\t\tNearestFilter: NearestFilter,\n\t\tNearestMipMapNearestFilter: NearestMipMapNearestFilter,\n\t\tNearestMipMapLinearFilter: NearestMipMapLinearFilter,\n\t\tLinearFilter: LinearFilter,\n\t\tLinearMipMapNearestFilter: LinearMipMapNearestFilter,\n\t\tLinearMipMapLinearFilter: LinearMipMapLinearFilter\n\t};\n\n\t/**\n\t * @author thespite / http://clicktorelease.com/\n\t */\n\n\n\tfunction ImageBitmapLoader( manager ) {\n\n\t\tif ( typeof createImageBitmap === 'undefined' ) {\n\n\t\t\tconsole.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );\n\n\t\t}\n\n\t\tif ( typeof fetch === 'undefined' ) {\n\n\t\t\tconsole.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );\n\n\t\t}\n\n\t\tthis.manager = manager !== undefined ? manager : DefaultLoadingManager;\n\t\tthis.options = undefined;\n\n\t}\n\n\tImageBitmapLoader.prototype = {\n\n\t\tconstructor: ImageBitmapLoader,\n\n\t\tsetOptions: function setOptions( options ) {\n\n\t\t\tthis.options = options;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( url === undefined ) url = '';\n\n\t\t\tif ( this.path !== undefined ) url = this.path + url;\n\n\t\t\turl = this.manager.resolveURL( url );\n\n\t\t\tvar scope = this;\n\n\t\t\tvar cached = Cache.get( url );\n\n\t\t\tif ( cached !== undefined ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\tsetTimeout( function () {\n\n\t\t\t\t\tif ( onLoad ) onLoad( cached );\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, 0 );\n\n\t\t\t\treturn cached;\n\n\t\t\t}\n\n\t\t\tfetch( url ).then( function ( res ) {\n\n\t\t\t\treturn res.blob();\n\n\t\t\t} ).then( function ( blob ) {\n\n\t\t\t\treturn createImageBitmap( blob, scope.options );\n\n\t\t\t} ).then( function ( imageBitmap ) {\n\n\t\t\t\tCache.add( url, imageBitmap );\n\n\t\t\t\tif ( onLoad ) onLoad( imageBitmap );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t} ).catch( function ( e ) {\n\n\t\t\t\tif ( onError ) onError( e );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t} );\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( /* value */ ) {\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * minimal class for proxing functions to Path. Replaces old \"extractSubpaths()\"\n\t **/\n\n\tfunction ShapePath() {\n\n\t\tthis.type = 'ShapePath';\n\n\t\tthis.color = new Color();\n\n\t\tthis.subPaths = [];\n\t\tthis.currentPath = null;\n\n\t}\n\n\tObject.assign( ShapePath.prototype, {\n\n\t\tmoveTo: function ( x, y ) {\n\n\t\t\tthis.currentPath = new Path();\n\t\t\tthis.subPaths.push( this.currentPath );\n\t\t\tthis.currentPath.moveTo( x, y );\n\n\t\t},\n\n\t\tlineTo: function ( x, y ) {\n\n\t\t\tthis.currentPath.lineTo( x, y );\n\n\t\t},\n\n\t\tquadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {\n\n\t\t\tthis.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );\n\n\t\t},\n\n\t\tbezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {\n\n\t\t\tthis.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );\n\n\t\t},\n\n\t\tsplineThru: function ( pts ) {\n\n\t\t\tthis.currentPath.splineThru( pts );\n\n\t\t},\n\n\t\ttoShapes: function ( isCCW, noHoles ) {\n\n\t\t\tfunction toShapesNoHoles( inSubpaths ) {\n\n\t\t\t\tvar shapes = [];\n\n\t\t\t\tfor ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar tmpPath = inSubpaths[ i ];\n\n\t\t\t\t\tvar tmpShape = new Shape();\n\t\t\t\t\ttmpShape.curves = tmpPath.curves;\n\n\t\t\t\t\tshapes.push( tmpShape );\n\n\t\t\t\t}\n\n\t\t\t\treturn shapes;\n\n\t\t\t}\n\n\t\t\tfunction isPointInsidePolygon( inPt, inPolygon ) {\n\n\t\t\t\tvar polyLen = inPolygon.length;\n\n\t\t\t\t// inPt on polygon contour => immediate success or\n\t\t\t\t// toggling of inside/outside at every single! intersection point of an edge\n\t\t\t\t// with the horizontal line through inPt, left of inPt\n\t\t\t\t// not counting lowerY endpoints of edges and whole edges on that line\n\t\t\t\tvar inside = false;\n\t\t\t\tfor ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {\n\n\t\t\t\t\tvar edgeLowPt = inPolygon[ p ];\n\t\t\t\t\tvar edgeHighPt = inPolygon[ q ];\n\n\t\t\t\t\tvar edgeDx = edgeHighPt.x - edgeLowPt.x;\n\t\t\t\t\tvar edgeDy = edgeHighPt.y - edgeLowPt.y;\n\n\t\t\t\t\tif ( Math.abs( edgeDy ) > Number.EPSILON ) {\n\n\t\t\t\t\t\t// not parallel\n\t\t\t\t\t\tif ( edgeDy < 0 ) {\n\n\t\t\t\t\t\t\tedgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;\n\t\t\t\t\t\t\tedgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) \t\tcontinue;\n\n\t\t\t\t\t\tif ( inPt.y === edgeLowPt.y ) {\n\n\t\t\t\t\t\t\tif ( inPt.x === edgeLowPt.x )\t\treturn\ttrue;\t\t// inPt is on contour ?\n\t\t\t\t\t\t\t// continue;\t\t\t\t// no intersection or edgeLowPt => doesn't count !!!\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );\n\t\t\t\t\t\t\tif ( perpEdge === 0 )\t\t\t\treturn\ttrue;\t\t// inPt is on contour ?\n\t\t\t\t\t\t\tif ( perpEdge < 0 ) \t\t\t\tcontinue;\n\t\t\t\t\t\t\tinside = ! inside;\t\t// true intersection left of inPt\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// parallel or collinear\n\t\t\t\t\t\tif ( inPt.y !== edgeLowPt.y ) \t\tcontinue;\t\t\t// parallel\n\t\t\t\t\t\t// edge lies on the same horizontal line as inPt\n\t\t\t\t\t\tif ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||\n\t\t\t\t\t\t\t ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )\t\treturn\ttrue;\t// inPt: Point on contour !\n\t\t\t\t\t\t// continue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn\tinside;\n\n\t\t\t}\n\n\t\t\tvar isClockWise = ShapeUtils.isClockWise;\n\n\t\t\tvar subPaths = this.subPaths;\n\t\t\tif ( subPaths.length === 0 ) return [];\n\n\t\t\tif ( noHoles === true )\treturn\ttoShapesNoHoles( subPaths );\n\n\n\t\t\tvar solid, tmpPath, tmpShape, shapes = [];\n\n\t\t\tif ( subPaths.length === 1 ) {\n\n\t\t\t\ttmpPath = subPaths[ 0 ];\n\t\t\t\ttmpShape = new Shape();\n\t\t\t\ttmpShape.curves = tmpPath.curves;\n\t\t\t\tshapes.push( tmpShape );\n\t\t\t\treturn shapes;\n\n\t\t\t}\n\n\t\t\tvar holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );\n\t\t\tholesFirst = isCCW ? ! holesFirst : holesFirst;\n\n\t\t\t// console.log(\"Holes first\", holesFirst);\n\n\t\t\tvar betterShapeHoles = [];\n\t\t\tvar newShapes = [];\n\t\t\tvar newShapeHoles = [];\n\t\t\tvar mainIdx = 0;\n\t\t\tvar tmpPoints;\n\n\t\t\tnewShapes[ mainIdx ] = undefined;\n\t\t\tnewShapeHoles[ mainIdx ] = [];\n\n\t\t\tfor ( var i = 0, l = subPaths.length; i < l; i ++ ) {\n\n\t\t\t\ttmpPath = subPaths[ i ];\n\t\t\t\ttmpPoints = tmpPath.getPoints();\n\t\t\t\tsolid = isClockWise( tmpPoints );\n\t\t\t\tsolid = isCCW ? ! solid : solid;\n\n\t\t\t\tif ( solid ) {\n\n\t\t\t\t\tif ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )\tmainIdx ++;\n\n\t\t\t\t\tnewShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };\n\t\t\t\t\tnewShapes[ mainIdx ].s.curves = tmpPath.curves;\n\n\t\t\t\t\tif ( holesFirst )\tmainIdx ++;\n\t\t\t\t\tnewShapeHoles[ mainIdx ] = [];\n\n\t\t\t\t\t//console.log('cw', i);\n\n\t\t\t\t} else {\n\n\t\t\t\t\tnewShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );\n\n\t\t\t\t\t//console.log('ccw', i);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// only Holes? -> probably all Shapes with wrong orientation\n\t\t\tif ( ! newShapes[ 0 ] )\treturn\ttoShapesNoHoles( subPaths );\n\n\n\t\t\tif ( newShapes.length > 1 ) {\n\n\t\t\t\tvar ambiguous = false;\n\t\t\t\tvar toChange = [];\n\n\t\t\t\tfor ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {\n\n\t\t\t\t\tbetterShapeHoles[ sIdx ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {\n\n\t\t\t\t\tvar sho = newShapeHoles[ sIdx ];\n\n\t\t\t\t\tfor ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {\n\n\t\t\t\t\t\tvar ho = sho[ hIdx ];\n\t\t\t\t\t\tvar hole_unassigned = true;\n\n\t\t\t\t\t\tfor ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {\n\n\t\t\t\t\t\t\tif ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {\n\n\t\t\t\t\t\t\t\tif ( sIdx !== s2Idx )\ttoChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );\n\t\t\t\t\t\t\t\tif ( hole_unassigned ) {\n\n\t\t\t\t\t\t\t\t\thole_unassigned = false;\n\t\t\t\t\t\t\t\t\tbetterShapeHoles[ s2Idx ].push( ho );\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tambiguous = true;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( hole_unassigned ) {\n\n\t\t\t\t\t\t\tbetterShapeHoles[ sIdx ].push( ho );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\t\t\t\t// console.log(\"ambiguous: \", ambiguous);\n\t\t\t\tif ( toChange.length > 0 ) {\n\n\t\t\t\t\t// console.log(\"to change: \", toChange);\n\t\t\t\t\tif ( ! ambiguous )\tnewShapeHoles = betterShapeHoles;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar tmpHoles;\n\n\t\t\tfor ( var i = 0, il = newShapes.length; i < il; i ++ ) {\n\n\t\t\t\ttmpShape = newShapes[ i ].s;\n\t\t\t\tshapes.push( tmpShape );\n\t\t\t\ttmpHoles = newShapeHoles[ i ];\n\n\t\t\t\tfor ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {\n\n\t\t\t\t\ttmpShape.holes.push( tmpHoles[ j ].h );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//console.log(\"shape\", shapes);\n\n\t\t\treturn shapes;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction Font( data ) {\n\n\t\tthis.type = 'Font';\n\n\t\tthis.data = data;\n\n\t}\n\n\tObject.assign( Font.prototype, {\n\n\t\tisFont: true,\n\n\t\tgenerateShapes: function ( text, size ) {\n\n\t\t\tif ( size === undefined ) size = 100;\n\n\t\t\tvar shapes = [];\n\t\t\tvar paths = createPaths( text, size, this.data );\n\n\t\t\tfor ( var p = 0, pl = paths.length; p < pl; p ++ ) {\n\n\t\t\t\tArray.prototype.push.apply( shapes, paths[ p ].toShapes() );\n\n\t\t\t}\n\n\t\t\treturn shapes;\n\n\t\t}\n\n\t} );\n\n\tfunction createPaths( text, size, data ) {\n\n\t\tvar chars = Array.from ? Array.from( text ) : String( text ).split( '' ); // see #13988\n\t\tvar scale = size / data.resolution;\n\t\tvar line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;\n\n\t\tvar paths = [];\n\n\t\tvar offsetX = 0, offsetY = 0;\n\n\t\tfor ( var i = 0; i < chars.length; i ++ ) {\n\n\t\t\tvar char = chars[ i ];\n\n\t\t\tif ( char === '\\n' ) {\n\n\t\t\t\toffsetX = 0;\n\t\t\t\toffsetY -= line_height;\n\n\t\t\t} else {\n\n\t\t\t\tvar ret = createPath( char, scale, offsetX, offsetY, data );\n\t\t\t\toffsetX += ret.offsetX;\n\t\t\t\tpaths.push( ret.path );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn paths;\n\n\t}\n\n\tfunction createPath( char, scale, offsetX, offsetY, data ) {\n\n\t\tvar glyph = data.glyphs[ char ] || data.glyphs[ '?' ];\n\n\t\tif ( ! glyph ) return;\n\n\t\tvar path = new ShapePath();\n\n\t\tvar x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;\n\n\t\tif ( glyph.o ) {\n\n\t\t\tvar outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );\n\n\t\t\tfor ( var i = 0, l = outline.length; i < l; ) {\n\n\t\t\t\tvar action = outline[ i ++ ];\n\n\t\t\t\tswitch ( action ) {\n\n\t\t\t\t\tcase 'm': // moveTo\n\n\t\t\t\t\t\tx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\ty = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.moveTo( x, y );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'l': // lineTo\n\n\t\t\t\t\t\tx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\ty = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.lineTo( x, y );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'q': // quadraticCurveTo\n\n\t\t\t\t\t\tcpx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy = outline[ i ++ ] * scale + offsetY;\n\t\t\t\t\t\tcpx1 = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy1 = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.quadraticCurveTo( cpx1, cpy1, cpx, cpy );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'b': // bezierCurveTo\n\n\t\t\t\t\t\tcpx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy = outline[ i ++ ] * scale + offsetY;\n\t\t\t\t\t\tcpx1 = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy1 = outline[ i ++ ] * scale + offsetY;\n\t\t\t\t\t\tcpx2 = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy2 = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn { offsetX: glyph.ha * scale, path: path };\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction FontLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( FontLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setPath( this.path );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json;\n\n\t\t\t\ttry {\n\n\t\t\t\t\tjson = JSON.parse( text );\n\n\t\t\t\t} catch ( e ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );\n\t\t\t\t\tjson = JSON.parse( text.substring( 65, text.length - 2 ) );\n\n\t\t\t\t}\n\n\t\t\t\tvar font = scope.parse( json );\n\n\t\t\t\tif ( onLoad ) onLoad( font );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\treturn new Font( json );\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar context;\n\n\tvar AudioContext = {\n\n\t\tgetContext: function () {\n\n\t\t\tif ( context === undefined ) {\n\n\t\t\t\tcontext = new ( window.AudioContext || window.webkitAudioContext )();\n\n\t\t\t}\n\n\t\t\treturn context;\n\n\t\t},\n\n\t\tsetContext: function ( value ) {\n\n\t\t\tcontext = value;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author Reece Aaron Lecrivain / http://reecenotes.com/\n\t */\n\n\tfunction AudioLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( AudioLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\t// Create a copy of the buffer. The `decodeAudioData` method\n\t\t\t\t// detaches the buffer when complete, preventing reuse.\n\t\t\t\tvar bufferCopy = buffer.slice( 0 );\n\n\t\t\t\tvar context = AudioContext.getContext();\n\t\t\t\tcontext.decodeAudioData( bufferCopy, function ( audioBuffer ) {\n\n\t\t\t\t\tonLoad( audioBuffer );\n\n\t\t\t\t} );\n\n\t\t\t}, onProgress, onError );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction StereoCamera() {\n\n\t\tthis.type = 'StereoCamera';\n\n\t\tthis.aspect = 1;\n\n\t\tthis.eyeSep = 0.064;\n\n\t\tthis.cameraL = new PerspectiveCamera();\n\t\tthis.cameraL.layers.enable( 1 );\n\t\tthis.cameraL.matrixAutoUpdate = false;\n\n\t\tthis.cameraR = new PerspectiveCamera();\n\t\tthis.cameraR.layers.enable( 2 );\n\t\tthis.cameraR.matrixAutoUpdate = false;\n\n\t}\n\n\tObject.assign( StereoCamera.prototype, {\n\n\t\tupdate: ( function () {\n\n\t\t\tvar instance, focus, fov, aspect, near, far, zoom, eyeSep;\n\n\t\t\tvar eyeRight = new Matrix4();\n\t\t\tvar eyeLeft = new Matrix4();\n\n\t\t\treturn function update( camera ) {\n\n\t\t\t\tvar needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||\n\t\t\t\t\t\t\t\t\t\t\t\t\taspect !== camera.aspect * this.aspect || near !== camera.near ||\n\t\t\t\t\t\t\t\t\t\t\t\t\tfar !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;\n\n\t\t\t\tif ( needsUpdate ) {\n\n\t\t\t\t\tinstance = this;\n\t\t\t\t\tfocus = camera.focus;\n\t\t\t\t\tfov = camera.fov;\n\t\t\t\t\taspect = camera.aspect * this.aspect;\n\t\t\t\t\tnear = camera.near;\n\t\t\t\t\tfar = camera.far;\n\t\t\t\t\tzoom = camera.zoom;\n\n\t\t\t\t\t// Off-axis stereoscopic effect based on\n\t\t\t\t\t// http://paulbourke.net/stereographics/stereorender/\n\n\t\t\t\t\tvar projectionMatrix = camera.projectionMatrix.clone();\n\t\t\t\t\teyeSep = this.eyeSep / 2;\n\t\t\t\t\tvar eyeSepOnProjection = eyeSep * near / focus;\n\t\t\t\t\tvar ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;\n\t\t\t\t\tvar xmin, xmax;\n\n\t\t\t\t\t// translate xOffset\n\n\t\t\t\t\teyeLeft.elements[ 12 ] = - eyeSep;\n\t\t\t\t\teyeRight.elements[ 12 ] = eyeSep;\n\n\t\t\t\t\t// for left eye\n\n\t\t\t\t\txmin = - ymax * aspect + eyeSepOnProjection;\n\t\t\t\t\txmax = ymax * aspect + eyeSepOnProjection;\n\n\t\t\t\t\tprojectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );\n\t\t\t\t\tprojectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );\n\n\t\t\t\t\tthis.cameraL.projectionMatrix.copy( projectionMatrix );\n\n\t\t\t\t\t// for right eye\n\n\t\t\t\t\txmin = - ymax * aspect - eyeSepOnProjection;\n\t\t\t\t\txmax = ymax * aspect - eyeSepOnProjection;\n\n\t\t\t\t\tprojectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );\n\t\t\t\t\tprojectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );\n\n\t\t\t\t\tthis.cameraR.projectionMatrix.copy( projectionMatrix );\n\n\t\t\t\t}\n\n\t\t\t\tthis.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );\n\t\t\t\tthis.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * Camera for rendering cube maps\n\t *\t- renders scene into axis-aligned cube\n\t *\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction CubeCamera( near, far, cubeResolution ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'CubeCamera';\n\n\t\tvar fov = 90, aspect = 1;\n\n\t\tvar cameraPX = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPX.up.set( 0, - 1, 0 );\n\t\tcameraPX.lookAt( new Vector3( 1, 0, 0 ) );\n\t\tthis.add( cameraPX );\n\n\t\tvar cameraNX = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNX.up.set( 0, - 1, 0 );\n\t\tcameraNX.lookAt( new Vector3( - 1, 0, 0 ) );\n\t\tthis.add( cameraNX );\n\n\t\tvar cameraPY = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPY.up.set( 0, 0, 1 );\n\t\tcameraPY.lookAt( new Vector3( 0, 1, 0 ) );\n\t\tthis.add( cameraPY );\n\n\t\tvar cameraNY = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNY.up.set( 0, 0, - 1 );\n\t\tcameraNY.lookAt( new Vector3( 0, - 1, 0 ) );\n\t\tthis.add( cameraNY );\n\n\t\tvar cameraPZ = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPZ.up.set( 0, - 1, 0 );\n\t\tcameraPZ.lookAt( new Vector3( 0, 0, 1 ) );\n\t\tthis.add( cameraPZ );\n\n\t\tvar cameraNZ = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNZ.up.set( 0, - 1, 0 );\n\t\tcameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );\n\t\tthis.add( cameraNZ );\n\n\t\tvar options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };\n\n\t\tthis.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );\n\t\tthis.renderTarget.texture.name = \"CubeCamera\";\n\n\t\tthis.update = function ( renderer, scene ) {\n\n\t\t\tif ( this.parent === null ) this.updateMatrixWorld();\n\n\t\t\tvar renderTarget = this.renderTarget;\n\t\t\tvar generateMipmaps = renderTarget.texture.generateMipmaps;\n\n\t\t\trenderTarget.texture.generateMipmaps = false;\n\n\t\t\trenderTarget.activeCubeFace = 0;\n\t\t\trenderer.render( scene, cameraPX, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 1;\n\t\t\trenderer.render( scene, cameraNX, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 2;\n\t\t\trenderer.render( scene, cameraPY, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 3;\n\t\t\trenderer.render( scene, cameraNY, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 4;\n\t\t\trenderer.render( scene, cameraPZ, renderTarget );\n\n\t\t\trenderTarget.texture.generateMipmaps = generateMipmaps;\n\n\t\t\trenderTarget.activeCubeFace = 5;\n\t\t\trenderer.render( scene, cameraNZ, renderTarget );\n\n\t\t\trenderer.setRenderTarget( null );\n\n\t\t};\n\n\t\tthis.clear = function ( renderer, color, depth, stencil ) {\n\n\t\t\tvar renderTarget = this.renderTarget;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\trenderTarget.activeCubeFace = i;\n\t\t\t\trenderer.setRenderTarget( renderTarget );\n\n\t\t\t\trenderer.clear( color, depth, stencil );\n\n\t\t\t}\n\n\t\t\trenderer.setRenderTarget( null );\n\n\t\t};\n\n\t}\n\n\tCubeCamera.prototype = Object.create( Object3D.prototype );\n\tCubeCamera.prototype.constructor = CubeCamera;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AudioListener() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'AudioListener';\n\n\t\tthis.context = AudioContext.getContext();\n\n\t\tthis.gain = this.context.createGain();\n\t\tthis.gain.connect( this.context.destination );\n\n\t\tthis.filter = null;\n\n\t}\n\n\tAudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: AudioListener,\n\n\t\tgetInput: function () {\n\n\t\t\treturn this.gain;\n\n\t\t},\n\n\t\tremoveFilter: function ( ) {\n\n\t\t\tif ( this.filter !== null ) {\n\n\t\t\t\tthis.gain.disconnect( this.filter );\n\t\t\t\tthis.filter.disconnect( this.context.destination );\n\t\t\t\tthis.gain.connect( this.context.destination );\n\t\t\t\tthis.filter = null;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilter: function () {\n\n\t\t\treturn this.filter;\n\n\t\t},\n\n\t\tsetFilter: function ( value ) {\n\n\t\t\tif ( this.filter !== null ) {\n\n\t\t\t\tthis.gain.disconnect( this.filter );\n\t\t\t\tthis.filter.disconnect( this.context.destination );\n\n\t\t\t} else {\n\n\t\t\t\tthis.gain.disconnect( this.context.destination );\n\n\t\t\t}\n\n\t\t\tthis.filter = value;\n\t\t\tthis.gain.connect( this.filter );\n\t\t\tthis.filter.connect( this.context.destination );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetMasterVolume: function () {\n\n\t\t\treturn this.gain.gain.value;\n\n\t\t},\n\n\t\tsetMasterVolume: function ( value ) {\n\n\t\t\tthis.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateMatrixWorld: ( function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\t\t\tvar scale = new Vector3();\n\n\t\t\tvar orientation = new Vector3();\n\n\t\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\t\tvar listener = this.context.listener;\n\t\t\t\tvar up = this.up;\n\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, scale );\n\n\t\t\t\torientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );\n\n\t\t\t\tif ( listener.positionX ) {\n\n\t\t\t\t\tlistener.positionX.setValueAtTime( position.x, this.context.currentTime );\n\t\t\t\t\tlistener.positionY.setValueAtTime( position.y, this.context.currentTime );\n\t\t\t\t\tlistener.positionZ.setValueAtTime( position.z, this.context.currentTime );\n\t\t\t\t\tlistener.forwardX.setValueAtTime( orientation.x, this.context.currentTime );\n\t\t\t\t\tlistener.forwardY.setValueAtTime( orientation.y, this.context.currentTime );\n\t\t\t\t\tlistener.forwardZ.setValueAtTime( orientation.z, this.context.currentTime );\n\t\t\t\t\tlistener.upX.setValueAtTime( up.x, this.context.currentTime );\n\t\t\t\t\tlistener.upY.setValueAtTime( up.y, this.context.currentTime );\n\t\t\t\t\tlistener.upZ.setValueAtTime( up.z, this.context.currentTime );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tlistener.setPosition( position.x, position.y, position.z );\n\t\t\t\t\tlistener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Reece Aaron Lecrivain / http://reecenotes.com/\n\t */\n\n\tfunction Audio( listener ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Audio';\n\n\t\tthis.context = listener.context;\n\n\t\tthis.gain = this.context.createGain();\n\t\tthis.gain.connect( listener.getInput() );\n\n\t\tthis.autoplay = false;\n\n\t\tthis.buffer = null;\n\t\tthis.loop = false;\n\t\tthis.startTime = 0;\n\t\tthis.offset = 0;\n\t\tthis.playbackRate = 1;\n\t\tthis.isPlaying = false;\n\t\tthis.hasPlaybackControl = true;\n\t\tthis.sourceType = 'empty';\n\n\t\tthis.filters = [];\n\n\t}\n\n\tAudio.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Audio,\n\n\t\tgetOutput: function () {\n\n\t\t\treturn this.gain;\n\n\t\t},\n\n\t\tsetNodeSource: function ( audioNode ) {\n\n\t\t\tthis.hasPlaybackControl = false;\n\t\t\tthis.sourceType = 'audioNode';\n\t\t\tthis.source = audioNode;\n\t\t\tthis.connect();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetMediaElementSource: function ( mediaElement ) {\n\n\t\t\tthis.hasPlaybackControl = false;\n\t\t\tthis.sourceType = 'mediaNode';\n\t\t\tthis.source = this.context.createMediaElementSource( mediaElement );\n\t\t\tthis.connect();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetBuffer: function ( audioBuffer ) {\n\n\t\t\tthis.buffer = audioBuffer;\n\t\t\tthis.sourceType = 'buffer';\n\n\t\t\tif ( this.autoplay ) this.play();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tplay: function () {\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: Audio is already playing.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar source = this.context.createBufferSource();\n\n\t\t\tsource.buffer = this.buffer;\n\t\t\tsource.loop = this.loop;\n\t\t\tsource.onended = this.onEnded.bind( this );\n\t\t\tsource.playbackRate.setValueAtTime( this.playbackRate, this.startTime );\n\t\t\tthis.startTime = this.context.currentTime;\n\t\t\tsource.start( this.startTime, this.offset );\n\n\t\t\tthis.isPlaying = true;\n\n\t\t\tthis.source = source;\n\n\t\t\treturn this.connect();\n\n\t\t},\n\n\t\tpause: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.source.stop();\n\t\t\t\tthis.source.onended = null;\n\t\t\t\tthis.offset += ( this.context.currentTime - this.startTime ) * this.playbackRate;\n\t\t\t\tthis.isPlaying = false;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.source.stop();\n\t\t\tthis.source.onended = null;\n\t\t\tthis.offset = 0;\n\t\t\tthis.isPlaying = false;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconnect: function () {\n\n\t\t\tif ( this.filters.length > 0 ) {\n\n\t\t\t\tthis.source.connect( this.filters[ 0 ] );\n\n\t\t\t\tfor ( var i = 1, l = this.filters.length; i < l; i ++ ) {\n\n\t\t\t\t\tthis.filters[ i - 1 ].connect( this.filters[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\tthis.filters[ this.filters.length - 1 ].connect( this.getOutput() );\n\n\t\t\t} else {\n\n\t\t\t\tthis.source.connect( this.getOutput() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdisconnect: function () {\n\n\t\t\tif ( this.filters.length > 0 ) {\n\n\t\t\t\tthis.source.disconnect( this.filters[ 0 ] );\n\n\t\t\t\tfor ( var i = 1, l = this.filters.length; i < l; i ++ ) {\n\n\t\t\t\t\tthis.filters[ i - 1 ].disconnect( this.filters[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\tthis.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );\n\n\t\t\t} else {\n\n\t\t\t\tthis.source.disconnect( this.getOutput() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilters: function () {\n\n\t\t\treturn this.filters;\n\n\t\t},\n\n\t\tsetFilters: function ( value ) {\n\n\t\t\tif ( ! value ) value = [];\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.disconnect();\n\t\t\t\tthis.filters = value;\n\t\t\t\tthis.connect();\n\n\t\t\t} else {\n\n\t\t\t\tthis.filters = value;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilter: function () {\n\n\t\t\treturn this.getFilters()[ 0 ];\n\n\t\t},\n\n\t\tsetFilter: function ( filter ) {\n\n\t\t\treturn this.setFilters( filter ? [ filter ] : [] );\n\n\t\t},\n\n\t\tsetPlaybackRate: function ( value ) {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.playbackRate = value;\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.source.playbackRate.setValueAtTime( this.playbackRate, this.context.currentTime );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetPlaybackRate: function () {\n\n\t\t\treturn this.playbackRate;\n\n\t\t},\n\n\t\tonEnded: function () {\n\n\t\t\tthis.isPlaying = false;\n\n\t\t},\n\n\t\tgetLoop: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\treturn this.loop;\n\n\t\t},\n\n\t\tsetLoop: function ( value ) {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.loop = value;\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.source.loop = this.loop;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetVolume: function () {\n\n\t\t\treturn this.gain.gain.value;\n\n\t\t},\n\n\t\tsetVolume: function ( value ) {\n\n\t\t\tthis.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction PositionalAudio( listener ) {\n\n\t\tAudio.call( this, listener );\n\n\t\tthis.panner = this.context.createPanner();\n\t\tthis.panner.connect( this.gain );\n\n\t}\n\n\tPositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {\n\n\t\tconstructor: PositionalAudio,\n\n\t\tgetOutput: function () {\n\n\t\t\treturn this.panner;\n\n\t\t},\n\n\t\tgetRefDistance: function () {\n\n\t\t\treturn this.panner.refDistance;\n\n\t\t},\n\n\t\tsetRefDistance: function ( value ) {\n\n\t\t\tthis.panner.refDistance = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetRolloffFactor: function () {\n\n\t\t\treturn this.panner.rolloffFactor;\n\n\t\t},\n\n\t\tsetRolloffFactor: function ( value ) {\n\n\t\t\tthis.panner.rolloffFactor = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetDistanceModel: function () {\n\n\t\t\treturn this.panner.distanceModel;\n\n\t\t},\n\n\t\tsetDistanceModel: function ( value ) {\n\n\t\t\tthis.panner.distanceModel = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetMaxDistance: function () {\n\n\t\t\treturn this.panner.maxDistance;\n\n\t\t},\n\n\t\tsetMaxDistance: function ( value ) {\n\n\t\t\tthis.panner.maxDistance = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetDirectionalCone: function ( coneInnerAngle, coneOuterAngle, coneOuterGain ) {\n\n\t\t\tthis.panner.coneInnerAngle = coneInnerAngle;\n\t\t\tthis.panner.coneOuterAngle = coneOuterAngle;\n\t\t\tthis.panner.coneOuterGain = coneOuterGain;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateMatrixWorld: ( function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\t\t\tvar scale = new Vector3();\n\n\t\t\tvar orientation = new Vector3();\n\n\t\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\t\tvar panner = this.panner;\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, scale );\n\n\t\t\t\torientation.set( 0, 0, 1 ).applyQuaternion( quaternion );\n\n\t\t\t\tpanner.setPosition( position.x, position.y, position.z );\n\t\t\t\tpanner.setOrientation( orientation.x, orientation.y, orientation.z );\n\n\t\t\t};\n\n\t\t} )()\n\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AudioAnalyser( audio, fftSize ) {\n\n\t\tthis.analyser = audio.context.createAnalyser();\n\t\tthis.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;\n\n\t\tthis.data = new Uint8Array( this.analyser.frequencyBinCount );\n\n\t\taudio.getOutput().connect( this.analyser );\n\n\t}\n\n\tObject.assign( AudioAnalyser.prototype, {\n\n\t\tgetFrequencyData: function () {\n\n\t\t\tthis.analyser.getByteFrequencyData( this.data );\n\n\t\t\treturn this.data;\n\n\t\t},\n\n\t\tgetAverageFrequency: function () {\n\n\t\t\tvar value = 0, data = this.getFrequencyData();\n\n\t\t\tfor ( var i = 0; i < data.length; i ++ ) {\n\n\t\t\t\tvalue += data[ i ];\n\n\t\t\t}\n\n\t\t\treturn value / data.length;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Buffered scene graph property that allows weighted accumulation.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction PropertyMixer( binding, typeName, valueSize ) {\n\n\t\tthis.binding = binding;\n\t\tthis.valueSize = valueSize;\n\n\t\tvar bufferType = Float64Array,\n\t\t\tmixFunction;\n\n\t\tswitch ( typeName ) {\n\n\t\t\tcase 'quaternion':\n\t\t\t\tmixFunction = this._slerp;\n\t\t\t\tbreak;\n\n\t\t\tcase 'string':\n\t\t\tcase 'bool':\n\t\t\t\tbufferType = Array;\n\t\t\t\tmixFunction = this._select;\n\t\t\t\tbreak;\n\n\t\t\tdefault:\n\t\t\t\tmixFunction = this._lerp;\n\n\t\t}\n\n\t\tthis.buffer = new bufferType( valueSize * 4 );\n\t\t// layout: [ incoming | accu0 | accu1 | orig ]\n\t\t//\n\t\t// interpolators can use .buffer as their .result\n\t\t// the data then goes to 'incoming'\n\t\t//\n\t\t// 'accu0' and 'accu1' are used frame-interleaved for\n\t\t// the cumulative result and are compared to detect\n\t\t// changes\n\t\t//\n\t\t// 'orig' stores the original state of the property\n\n\t\tthis._mixBufferRegion = mixFunction;\n\n\t\tthis.cumulativeWeight = 0;\n\n\t\tthis.useCount = 0;\n\t\tthis.referenceCount = 0;\n\n\t}\n\n\tObject.assign( PropertyMixer.prototype, {\n\n\t\t// accumulate data in the 'incoming' region into 'accu'\n\t\taccumulate: function ( accuIndex, weight ) {\n\n\t\t\t// note: happily accumulating nothing when weight = 0, the caller knows\n\t\t\t// the weight and shouldn't have made the call in the first place\n\n\t\t\tvar buffer = this.buffer,\n\t\t\t\tstride = this.valueSize,\n\t\t\t\toffset = accuIndex * stride + stride,\n\n\t\t\t\tcurrentWeight = this.cumulativeWeight;\n\n\t\t\tif ( currentWeight === 0 ) {\n\n\t\t\t\t// accuN := incoming * weight\n\n\t\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\t\tbuffer[ offset + i ] = buffer[ i ];\n\n\t\t\t\t}\n\n\t\t\t\tcurrentWeight = weight;\n\n\t\t\t} else {\n\n\t\t\t\t// accuN := accuN + incoming * weight\n\n\t\t\t\tcurrentWeight += weight;\n\t\t\t\tvar mix = weight / currentWeight;\n\t\t\t\tthis._mixBufferRegion( buffer, offset, 0, mix, stride );\n\n\t\t\t}\n\n\t\t\tthis.cumulativeWeight = currentWeight;\n\n\t\t},\n\n\t\t// apply the state of 'accu' to the binding when accus differ\n\t\tapply: function ( accuIndex ) {\n\n\t\t\tvar stride = this.valueSize,\n\t\t\t\tbuffer = this.buffer,\n\t\t\t\toffset = accuIndex * stride + stride,\n\n\t\t\t\tweight = this.cumulativeWeight,\n\n\t\t\t\tbinding = this.binding;\n\n\t\t\tthis.cumulativeWeight = 0;\n\n\t\t\tif ( weight < 1 ) {\n\n\t\t\t\t// accuN := accuN + original * ( 1 - cumulativeWeight )\n\n\t\t\t\tvar originalValueOffset = stride * 3;\n\n\t\t\t\tthis._mixBufferRegion(\n\t\t\t\t\tbuffer, offset, originalValueOffset, 1 - weight, stride );\n\n\t\t\t}\n\n\t\t\tfor ( var i = stride, e = stride + stride; i !== e; ++ i ) {\n\n\t\t\t\tif ( buffer[ i ] !== buffer[ i + stride ] ) {\n\n\t\t\t\t\t// value has changed -> update scene graph\n\n\t\t\t\t\tbinding.setValue( buffer, offset );\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t// remember the state of the bound property and copy it to both accus\n\t\tsaveOriginalState: function () {\n\n\t\t\tvar binding = this.binding;\n\n\t\t\tvar buffer = this.buffer,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toriginalValueOffset = stride * 3;\n\n\t\t\tbinding.getValue( buffer, originalValueOffset );\n\n\t\t\t// accu[0..1] := orig -- initially detect changes against the original\n\t\t\tfor ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {\n\n\t\t\t\tbuffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];\n\n\t\t\t}\n\n\t\t\tthis.cumulativeWeight = 0;\n\n\t\t},\n\n\t\t// apply the state previously taken via 'saveOriginalState' to the binding\n\t\trestoreOriginalState: function () {\n\n\t\t\tvar originalValueOffset = this.valueSize * 3;\n\t\t\tthis.binding.setValue( this.buffer, originalValueOffset );\n\n\t\t},\n\n\n\t\t// mix functions\n\n\t\t_select: function ( buffer, dstOffset, srcOffset, t, stride ) {\n\n\t\t\tif ( t >= 0.5 ) {\n\n\t\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\t\tbuffer[ dstOffset + i ] = buffer[ srcOffset + i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_slerp: function ( buffer, dstOffset, srcOffset, t ) {\n\n\t\t\tQuaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );\n\n\t\t},\n\n\t\t_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {\n\n\t\t\tvar s = 1 - t;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tvar j = dstOffset + i;\n\n\t\t\t\tbuffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A reference to a real property in the scene graph.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\t// Characters [].:/ are reserved for track binding syntax.\n\tvar RESERVED_CHARS_RE = '\\\\[\\\\]\\\\.:\\\\/';\n\n\tfunction Composite( targetGroup, path, optionalParsedPath ) {\n\n\t\tvar parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );\n\n\t\tthis._targetGroup = targetGroup;\n\t\tthis._bindings = targetGroup.subscribe_( path, parsedPath );\n\n\t}\n\n\tObject.assign( Composite.prototype, {\n\n\t\tgetValue: function ( array, offset ) {\n\n\t\t\tthis.bind(); // bind all binding\n\n\t\t\tvar firstValidIndex = this._targetGroup.nCachedObjects_,\n\t\t\t\tbinding = this._bindings[ firstValidIndex ];\n\n\t\t\t// and only call .getValue on the first\n\t\t\tif ( binding !== undefined ) binding.getValue( array, offset );\n\n\t\t},\n\n\t\tsetValue: function ( array, offset ) {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\t n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].setValue( array, offset );\n\n\t\t\t}\n\n\t\t},\n\n\t\tbind: function () {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\t n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].bind();\n\n\t\t\t}\n\n\t\t},\n\n\t\tunbind: function () {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\t n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].unbind();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\n\tfunction PropertyBinding( rootNode, path, parsedPath ) {\n\n\t\tthis.path = path;\n\t\tthis.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );\n\n\t\tthis.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;\n\n\t\tthis.rootNode = rootNode;\n\n\t}\n\n\tObject.assign( PropertyBinding, {\n\n\t\tComposite: Composite,\n\n\t\tcreate: function ( root, path, parsedPath ) {\n\n\t\t\tif ( ! ( root && root.isAnimationObjectGroup ) ) {\n\n\t\t\t\treturn new PropertyBinding( root, path, parsedPath );\n\n\t\t\t} else {\n\n\t\t\t\treturn new PropertyBinding.Composite( root, path, parsedPath );\n\n\t\t\t}\n\n\t\t},\n\n\t\t/**\n\t\t * Replaces spaces with underscores and removes unsupported characters from\n\t\t * node names, to ensure compatibility with parseTrackName().\n\t\t *\n\t\t * @param {string} name Node name to be sanitized.\n\t\t * @return {string}\n\t\t */\n\t\tsanitizeNodeName: ( function () {\n\n\t\t\tvar reservedRe = new RegExp( '[' + RESERVED_CHARS_RE + ']', 'g' );\n\n\t\t\treturn function sanitizeNodeName( name ) {\n\n\t\t\t\treturn name.replace( /\\s/g, '_' ).replace( reservedRe, '' );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tparseTrackName: function () {\n\n\t\t\t// Attempts to allow node names from any language. ES5's `\\w` regexp matches\n\t\t\t// only latin characters, and the unicode \\p{L} is not yet supported. So\n\t\t\t// instead, we exclude reserved characters and match everything else.\n\t\t\tvar wordChar = '[^' + RESERVED_CHARS_RE + ']';\n\t\t\tvar wordCharOrDot = '[^' + RESERVED_CHARS_RE.replace( '\\\\.', '' ) + ']';\n\n\t\t\t// Parent directories, delimited by '/' or ':'. Currently unused, but must\n\t\t\t// be matched to parse the rest of the track name.\n\t\t\tvar directoryRe = /((?:WC+[\\/:])*)/.source.replace( 'WC', wordChar );\n\n\t\t\t// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.\n\t\t\tvar nodeRe = /(WCOD+)?/.source.replace( 'WCOD', wordCharOrDot );\n\n\t\t\t// Object on target node, and accessor. May not contain reserved\n\t\t\t// characters. Accessor may contain any character except closing bracket.\n\t\t\tvar objectRe = /(?:\\.(WC+)(?:\\[(.+)\\])?)?/.source.replace( 'WC', wordChar );\n\n\t\t\t// Property and accessor. May not contain reserved characters. Accessor may\n\t\t\t// contain any non-bracket characters.\n\t\t\tvar propertyRe = /\\.(WC+)(?:\\[(.+)\\])?/.source.replace( 'WC', wordChar );\n\n\t\t\tvar trackRe = new RegExp( ''\n\t\t\t\t+ '^'\n\t\t\t\t+ directoryRe\n\t\t\t\t+ nodeRe\n\t\t\t\t+ objectRe\n\t\t\t\t+ propertyRe\n\t\t\t\t+ '$'\n\t\t\t);\n\n\t\t\tvar supportedObjectNames = [ 'material', 'materials', 'bones' ];\n\n\t\t\treturn function parseTrackName( trackName ) {\n\n\t\t\t\tvar matches = trackRe.exec( trackName );\n\n\t\t\t\tif ( ! matches ) {\n\n\t\t\t\t\tthrow new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );\n\n\t\t\t\t}\n\n\t\t\t\tvar results = {\n\t\t\t\t\t// directoryName: matches[ 1 ], // (tschw) currently unused\n\t\t\t\t\tnodeName: matches[ 2 ],\n\t\t\t\t\tobjectName: matches[ 3 ],\n\t\t\t\t\tobjectIndex: matches[ 4 ],\n\t\t\t\t\tpropertyName: matches[ 5 ], // required\n\t\t\t\t\tpropertyIndex: matches[ 6 ]\n\t\t\t\t};\n\n\t\t\t\tvar lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );\n\n\t\t\t\tif ( lastDot !== undefined && lastDot !== - 1 ) {\n\n\t\t\t\t\tvar objectName = results.nodeName.substring( lastDot + 1 );\n\n\t\t\t\t\t// Object names must be checked against a whitelist. Otherwise, there\n\t\t\t\t\t// is no way to parse 'foo.bar.baz': 'baz' must be a property, but\n\t\t\t\t\t// 'bar' could be the objectName, or part of a nodeName (which can\n\t\t\t\t\t// include '.' characters).\n\t\t\t\t\tif ( supportedObjectNames.indexOf( objectName ) !== - 1 ) {\n\n\t\t\t\t\t\tresults.nodeName = results.nodeName.substring( 0, lastDot );\n\t\t\t\t\t\tresults.objectName = objectName;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( results.propertyName === null || results.propertyName.length === 0 ) {\n\n\t\t\t\t\tthrow new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );\n\n\t\t\t\t}\n\n\t\t\t\treturn results;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tfindNode: function ( root, nodeName ) {\n\n\t\t\tif ( ! nodeName || nodeName === \"\" || nodeName === \"root\" || nodeName === \".\" || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {\n\n\t\t\t\treturn root;\n\n\t\t\t}\n\n\t\t\t// search into skeleton bones.\n\t\t\tif ( root.skeleton ) {\n\n\t\t\t\tvar bone = root.skeleton.getBoneByName( nodeName );\n\n\t\t\t\tif ( bone !== undefined ) {\n\n\t\t\t\t\treturn bone;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// search into node subtree.\n\t\t\tif ( root.children ) {\n\n\t\t\t\tvar searchNodeSubtree = function ( children ) {\n\n\t\t\t\t\tfor ( var i = 0; i < children.length; i ++ ) {\n\n\t\t\t\t\t\tvar childNode = children[ i ];\n\n\t\t\t\t\t\tif ( childNode.name === nodeName || childNode.uuid === nodeName ) {\n\n\t\t\t\t\t\t\treturn childNode;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar result = searchNodeSubtree( childNode.children );\n\n\t\t\t\t\t\tif ( result ) return result;\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t};\n\n\t\t\t\tvar subTreeNode = searchNodeSubtree( root.children );\n\n\t\t\t\tif ( subTreeNode ) {\n\n\t\t\t\t\treturn subTreeNode;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( PropertyBinding.prototype, { // prototype, continued\n\n\t\t// these are used to \"bind\" a nonexistent property\n\t\t_getValue_unavailable: function () {},\n\t\t_setValue_unavailable: function () {},\n\n\t\tBindingType: {\n\t\t\tDirect: 0,\n\t\t\tEntireArray: 1,\n\t\t\tArrayElement: 2,\n\t\t\tHasFromToArray: 3\n\t\t},\n\n\t\tVersioning: {\n\t\t\tNone: 0,\n\t\t\tNeedsUpdate: 1,\n\t\t\tMatrixWorldNeedsUpdate: 2\n\t\t},\n\n\t\tGetterByBindingType: [\n\n\t\t\tfunction getValue_direct( buffer, offset ) {\n\n\t\t\t\tbuffer[ offset ] = this.node[ this.propertyName ];\n\n\t\t\t},\n\n\t\t\tfunction getValue_array( buffer, offset ) {\n\n\t\t\t\tvar source = this.resolvedProperty;\n\n\t\t\t\tfor ( var i = 0, n = source.length; i !== n; ++ i ) {\n\n\t\t\t\t\tbuffer[ offset ++ ] = source[ i ];\n\n\t\t\t\t}\n\n\t\t\t},\n\n\t\t\tfunction getValue_arrayElement( buffer, offset ) {\n\n\t\t\t\tbuffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];\n\n\t\t\t},\n\n\t\t\tfunction getValue_toArray( buffer, offset ) {\n\n\t\t\t\tthis.resolvedProperty.toArray( buffer, offset );\n\n\t\t\t}\n\n\t\t],\n\n\t\tSetterByBindingTypeAndVersioning: [\n\n\t\t\t[\n\t\t\t\t// Direct\n\n\t\t\t\tfunction setValue_direct( buffer, offset ) {\n\n\t\t\t\t\tthis.targetObject[ this.propertyName ] = buffer[ offset ];\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_direct_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.targetObject[ this.propertyName ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.targetObject[ this.propertyName ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// EntireArray\n\n\t\t\t\tfunction setValue_array( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_array_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// ArrayElement\n\n\t\t\t\tfunction setValue_arrayElement( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_arrayElement_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// HasToFromArray\n\n\t\t\t\tfunction setValue_fromArray( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_fromArray_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t]\n\n\t\t],\n\n\t\tgetValue: function getValue_unbound( targetArray, offset ) {\n\n\t\t\tthis.bind();\n\t\t\tthis.getValue( targetArray, offset );\n\n\t\t\t// Note: This class uses a State pattern on a per-method basis:\n\t\t\t// 'bind' sets 'this.getValue' / 'setValue' and shadows the\n\t\t\t// prototype version of these methods with one that represents\n\t\t\t// the bound state. When the property is not found, the methods\n\t\t\t// become no-ops.\n\n\t\t},\n\n\t\tsetValue: function getValue_unbound( sourceArray, offset ) {\n\n\t\t\tthis.bind();\n\t\t\tthis.setValue( sourceArray, offset );\n\n\t\t},\n\n\t\t// create getter / setter pair for a property in the scene graph\n\t\tbind: function () {\n\n\t\t\tvar targetObject = this.node,\n\t\t\t\tparsedPath = this.parsedPath,\n\n\t\t\t\tobjectName = parsedPath.objectName,\n\t\t\t\tpropertyName = parsedPath.propertyName,\n\t\t\t\tpropertyIndex = parsedPath.propertyIndex;\n\n\t\t\tif ( ! targetObject ) {\n\n\t\t\t\ttargetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;\n\n\t\t\t\tthis.node = targetObject;\n\n\t\t\t}\n\n\t\t\t// set fail state so we can just 'return' on error\n\t\t\tthis.getValue = this._getValue_unavailable;\n\t\t\tthis.setValue = this._setValue_unavailable;\n\n\t\t\t// ensure there is a value node\n\t\t\tif ( ! targetObject ) {\n\n\t\t\t\tconsole.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\\'t found.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( objectName ) {\n\n\t\t\t\tvar objectIndex = parsedPath.objectIndex;\n\n\t\t\t\t// special cases were we need to reach deeper into the hierarchy to get the face materials....\n\t\t\t\tswitch ( objectName ) {\n\n\t\t\t\t\tcase 'materials':\n\n\t\t\t\t\t\tif ( ! targetObject.material ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( ! targetObject.material.materials ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttargetObject = targetObject.material.materials;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'bones':\n\n\t\t\t\t\t\tif ( ! targetObject.skeleton ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// potential future optimization: skip this if propertyIndex is already an integer\n\t\t\t\t\t\t// and convert the integer string to a true integer.\n\n\t\t\t\t\t\ttargetObject = targetObject.skeleton.bones;\n\n\t\t\t\t\t\t// support resolving morphTarget names into indices.\n\t\t\t\t\t\tfor ( var i = 0; i < targetObject.length; i ++ ) {\n\n\t\t\t\t\t\t\tif ( targetObject[ i ].name === objectIndex ) {\n\n\t\t\t\t\t\t\t\tobjectIndex = i;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\n\t\t\t\t\t\tif ( targetObject[ objectName ] === undefined ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttargetObject = targetObject[ objectName ];\n\n\t\t\t\t}\n\n\n\t\t\t\tif ( objectIndex !== undefined ) {\n\n\t\t\t\t\tif ( targetObject[ objectIndex ] === undefined ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttargetObject = targetObject[ objectIndex ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// resolve property\n\t\t\tvar nodeProperty = targetObject[ propertyName ];\n\n\t\t\tif ( nodeProperty === undefined ) {\n\n\t\t\t\tvar nodeName = parsedPath.nodeName;\n\n\t\t\t\tconsole.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +\n\t\t\t\t\t'.' + propertyName + ' but it wasn\\'t found.', targetObject );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t// determine versioning scheme\n\t\t\tvar versioning = this.Versioning.None;\n\n\t\t\tif ( targetObject.needsUpdate !== undefined ) { // material\n\n\t\t\t\tversioning = this.Versioning.NeedsUpdate;\n\t\t\t\tthis.targetObject = targetObject;\n\n\t\t\t} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform\n\n\t\t\t\tversioning = this.Versioning.MatrixWorldNeedsUpdate;\n\t\t\t\tthis.targetObject = targetObject;\n\n\t\t\t}\n\n\t\t\t// determine how the property gets bound\n\t\t\tvar bindingType = this.BindingType.Direct;\n\n\t\t\tif ( propertyIndex !== undefined ) {\n\n\t\t\t\t// access a sub element of the property array (only primitives are supported right now)\n\n\t\t\t\tif ( propertyName === \"morphTargetInfluences\" ) {\n\n\t\t\t\t\t// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.\n\n\t\t\t\t\t// support resolving morphTarget names into indices.\n\t\t\t\t\tif ( ! targetObject.geometry ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( targetObject.geometry.isBufferGeometry ) {\n\n\t\t\t\t\t\tif ( ! targetObject.geometry.morphAttributes ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {\n\n\t\t\t\t\t\t\tif ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {\n\n\t\t\t\t\t\t\t\tpropertyIndex = i;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( ! targetObject.geometry.morphTargets ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {\n\n\t\t\t\t\t\t\tif ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {\n\n\t\t\t\t\t\t\t\tpropertyIndex = i;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tbindingType = this.BindingType.ArrayElement;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\t\t\t\tthis.propertyIndex = propertyIndex;\n\n\t\t\t} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {\n\n\t\t\t\t// must use copy for Object3D.Euler/Quaternion\n\n\t\t\t\tbindingType = this.BindingType.HasFromToArray;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\n\t\t\t} else if ( Array.isArray( nodeProperty ) ) {\n\n\t\t\t\tbindingType = this.BindingType.EntireArray;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\n\t\t\t} else {\n\n\t\t\t\tthis.propertyName = propertyName;\n\n\t\t\t}\n\n\t\t\t// select getter / setter\n\t\t\tthis.getValue = this.GetterByBindingType[ bindingType ];\n\t\t\tthis.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];\n\n\t\t},\n\n\t\tunbind: function () {\n\n\t\t\tthis.node = null;\n\n\t\t\t// back to the prototype version of getValue / setValue\n\t\t\t// note: avoiding to mutate the shape of 'this' via 'delete'\n\t\t\tthis.getValue = this._getValue_unbound;\n\t\t\tthis.setValue = this._setValue_unbound;\n\n\t\t}\n\n\t} );\n\n\t//!\\ DECLARE ALIAS AFTER assign prototype !\n\tObject.assign( PropertyBinding.prototype, {\n\n\t\t// initial state of these methods that calls 'bind'\n\t\t_getValue_unbound: PropertyBinding.prototype.getValue,\n\t\t_setValue_unbound: PropertyBinding.prototype.setValue,\n\n\t} );\n\n\t/**\n\t *\n\t * A group of objects that receives a shared animation state.\n\t *\n\t * Usage:\n\t *\n\t * \t-\tAdd objects you would otherwise pass as 'root' to the\n\t * \t\tconstructor or the .clipAction method of AnimationMixer.\n\t *\n\t * \t-\tInstead pass this object as 'root'.\n\t *\n\t * \t-\tYou can also add and remove objects later when the mixer\n\t * \t\tis running.\n\t *\n\t * Note:\n\t *\n\t * \tObjects of this class appear as one object to the mixer,\n\t * \tso cache control of the individual objects must be done\n\t * \ton the group.\n\t *\n\t * Limitation:\n\t *\n\t * \t- \tThe animated properties must be compatible among the\n\t * \t\tall objects in the group.\n\t *\n\t * -\tA single property can either be controlled through a\n\t * \ttarget group or directly, but not both.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction AnimationObjectGroup() {\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\t// cached objects followed by the active ones\n\t\tthis._objects = Array.prototype.slice.call( arguments );\n\n\t\tthis.nCachedObjects_ = 0;\t\t\t// threshold\n\t\t// note: read by PropertyBinding.Composite\n\n\t\tvar indices = {};\n\t\tthis._indicesByUUID = indices;\t\t// for bookkeeping\n\n\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\tindices[ arguments[ i ].uuid ] = i;\n\n\t\t}\n\n\t\tthis._paths = [];\t\t\t\t\t// inside: string\n\t\tthis._parsedPaths = [];\t\t\t\t// inside: { we don't care, here }\n\t\tthis._bindings = []; \t\t\t\t// inside: Array< PropertyBinding >\n\t\tthis._bindingsIndicesByPath = {}; \t// inside: indices in these arrays\n\n\t\tvar scope = this;\n\n\t\tthis.stats = {\n\n\t\t\tobjects: {\n\t\t\t\tget total() {\n\n\t\t\t\t\treturn scope._objects.length;\n\n\t\t\t\t},\n\t\t\t\tget inUse() {\n\n\t\t\t\t\treturn this.total - scope.nCachedObjects_;\n\n\t\t\t\t}\n\t\t\t},\n\t\t\tget bindingsPerObject() {\n\n\t\t\t\treturn scope._bindings.length;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\tObject.assign( AnimationObjectGroup.prototype, {\n\n\t\tisAnimationObjectGroup: true,\n\n\t\tadd: function () {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tpaths = this._paths,\n\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length,\n\t\t\t\tknownObject = undefined;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index === undefined ) {\n\n\t\t\t\t\t// unknown object -> add it to the ACTIVE region\n\n\t\t\t\t\tindex = nObjects ++;\n\t\t\t\t\tindicesByUUID[ uuid ] = index;\n\t\t\t\t\tobjects.push( object );\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tbindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( index < nCachedObjects ) {\n\n\t\t\t\t\tknownObject = objects[ index ];\n\n\t\t\t\t\t// move existing object to the ACTIVE region\n\n\t\t\t\t\tvar firstActiveIndex = -- nCachedObjects,\n\t\t\t\t\t\tlastCachedObject = objects[ firstActiveIndex ];\n\n\t\t\t\t\tindicesByUUID[ lastCachedObject.uuid ] = index;\n\t\t\t\t\tobjects[ index ] = lastCachedObject;\n\n\t\t\t\t\tindicesByUUID[ uuid ] = firstActiveIndex;\n\t\t\t\t\tobjects[ firstActiveIndex ] = object;\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\tlastCached = bindingsForPath[ firstActiveIndex ],\n\t\t\t\t\t\t\tbinding = bindingsForPath[ index ];\n\n\t\t\t\t\t\tbindingsForPath[ index ] = lastCached;\n\n\t\t\t\t\t\tif ( binding === undefined ) {\n\n\t\t\t\t\t\t\t// since we do not bother to create new bindings\n\t\t\t\t\t\t\t// for objects that are cached, the binding may\n\t\t\t\t\t\t\t// or may not exist\n\n\t\t\t\t\t\t\tbinding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbindingsForPath[ firstActiveIndex ] = binding;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( objects[ index ] !== knownObject ) {\n\n\t\t\t\t\tconsole.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +\n\t\t\t\t\t\t\t'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );\n\n\t\t\t\t} // else the object is already where we want it to be\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\tremove: function () {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index !== undefined && index >= nCachedObjects ) {\n\n\t\t\t\t\t// move existing object into the CACHED region\n\n\t\t\t\t\tvar lastCachedIndex = nCachedObjects ++,\n\t\t\t\t\t\tfirstActiveObject = objects[ lastCachedIndex ];\n\n\t\t\t\t\tindicesByUUID[ firstActiveObject.uuid ] = index;\n\t\t\t\t\tobjects[ index ] = firstActiveObject;\n\n\t\t\t\t\tindicesByUUID[ uuid ] = lastCachedIndex;\n\t\t\t\t\tobjects[ lastCachedIndex ] = object;\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\tfirstActive = bindingsForPath[ lastCachedIndex ],\n\t\t\t\t\t\t\tbinding = bindingsForPath[ index ];\n\n\t\t\t\t\t\tbindingsForPath[ index ] = firstActive;\n\t\t\t\t\t\tbindingsForPath[ lastCachedIndex ] = binding;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\t// remove & forget\n\t\tuncache: function () {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index !== undefined ) {\n\n\t\t\t\t\tdelete indicesByUUID[ uuid ];\n\n\t\t\t\t\tif ( index < nCachedObjects ) {\n\n\t\t\t\t\t\t// object is cached, shrink the CACHED region\n\n\t\t\t\t\t\tvar firstActiveIndex = -- nCachedObjects,\n\t\t\t\t\t\t\tlastCachedObject = objects[ firstActiveIndex ],\n\t\t\t\t\t\t\tlastIndex = -- nObjects,\n\t\t\t\t\t\t\tlastObject = objects[ lastIndex ];\n\n\t\t\t\t\t\t// last cached object takes this object's place\n\t\t\t\t\t\tindicesByUUID[ lastCachedObject.uuid ] = index;\n\t\t\t\t\t\tobjects[ index ] = lastCachedObject;\n\n\t\t\t\t\t\t// last object goes to the activated slot and pop\n\t\t\t\t\t\tindicesByUUID[ lastObject.uuid ] = firstActiveIndex;\n\t\t\t\t\t\tobjects[ firstActiveIndex ] = lastObject;\n\t\t\t\t\t\tobjects.pop();\n\n\t\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\t\tlastCached = bindingsForPath[ firstActiveIndex ],\n\t\t\t\t\t\t\t\tlast = bindingsForPath[ lastIndex ];\n\n\t\t\t\t\t\t\tbindingsForPath[ index ] = lastCached;\n\t\t\t\t\t\t\tbindingsForPath[ firstActiveIndex ] = last;\n\t\t\t\t\t\t\tbindingsForPath.pop();\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// object is active, just swap with the last and pop\n\n\t\t\t\t\t\tvar lastIndex = -- nObjects,\n\t\t\t\t\t\t\tlastObject = objects[ lastIndex ];\n\n\t\t\t\t\t\tindicesByUUID[ lastObject.uuid ] = index;\n\t\t\t\t\t\tobjects[ index ] = lastObject;\n\t\t\t\t\t\tobjects.pop();\n\n\t\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\t\tvar bindingsForPath = bindings[ j ];\n\n\t\t\t\t\t\t\tbindingsForPath[ index ] = bindingsForPath[ lastIndex ];\n\t\t\t\t\t\t\tbindingsForPath.pop();\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} // cached or active\n\n\t\t\t\t} // if object is known\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\t// Internal interface used by befriended PropertyBinding.Composite:\n\n\t\tsubscribe_: function ( path, parsedPath ) {\n\n\t\t\t// returns an array of bindings for the given path that is changed\n\t\t\t// according to the contained objects in the group\n\n\t\t\tvar indicesByPath = this._bindingsIndicesByPath,\n\t\t\t\tindex = indicesByPath[ path ],\n\t\t\t\tbindings = this._bindings;\n\n\t\t\tif ( index !== undefined ) return bindings[ index ];\n\n\t\t\tvar paths = this._paths,\n\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\tobjects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tbindingsForPath = new Array( nObjects );\n\n\t\t\tindex = bindings.length;\n\n\t\t\tindicesByPath[ path ] = index;\n\n\t\t\tpaths.push( path );\n\t\t\tparsedPaths.push( parsedPath );\n\t\t\tbindings.push( bindingsForPath );\n\n\t\t\tfor ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = objects[ i ];\n\t\t\t\tbindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );\n\n\t\t\t}\n\n\t\t\treturn bindingsForPath;\n\n\t\t},\n\n\t\tunsubscribe_: function ( path ) {\n\n\t\t\t// tells the group to forget about a property path and no longer\n\t\t\t// update the array previously obtained with 'subscribe_'\n\n\t\t\tvar indicesByPath = this._bindingsIndicesByPath,\n\t\t\t\tindex = indicesByPath[ path ];\n\n\t\t\tif ( index !== undefined ) {\n\n\t\t\t\tvar paths = this._paths,\n\t\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\t\tbindings = this._bindings,\n\t\t\t\t\tlastBindingsIndex = bindings.length - 1,\n\t\t\t\t\tlastBindings = bindings[ lastBindingsIndex ],\n\t\t\t\t\tlastBindingsPath = path[ lastBindingsIndex ];\n\n\t\t\t\tindicesByPath[ lastBindingsPath ] = index;\n\n\t\t\t\tbindings[ index ] = lastBindings;\n\t\t\t\tbindings.pop();\n\n\t\t\t\tparsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];\n\t\t\t\tparsedPaths.pop();\n\n\t\t\t\tpaths[ index ] = paths[ lastBindingsIndex ];\n\t\t\t\tpaths.pop();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Action provided by AnimationMixer for scheduling clip playback on specific\n\t * objects.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t *\n\t */\n\n\tfunction AnimationAction( mixer, clip, localRoot ) {\n\n\t\tthis._mixer = mixer;\n\t\tthis._clip = clip;\n\t\tthis._localRoot = localRoot || null;\n\n\t\tvar tracks = clip.tracks,\n\t\t\tnTracks = tracks.length,\n\t\t\tinterpolants = new Array( nTracks );\n\n\t\tvar interpolantSettings = {\n\t\t\tendingStart: ZeroCurvatureEnding,\n\t\t\tendingEnd: ZeroCurvatureEnding\n\t\t};\n\n\t\tfor ( var i = 0; i !== nTracks; ++ i ) {\n\n\t\t\tvar interpolant = tracks[ i ].createInterpolant( null );\n\t\t\tinterpolants[ i ] = interpolant;\n\t\t\tinterpolant.settings = interpolantSettings;\n\n\t\t}\n\n\t\tthis._interpolantSettings = interpolantSettings;\n\n\t\tthis._interpolants = interpolants;\t// bound by the mixer\n\n\t\t// inside: PropertyMixer (managed by the mixer)\n\t\tthis._propertyBindings = new Array( nTracks );\n\n\t\tthis._cacheIndex = null;\t\t\t// for the memory manager\n\t\tthis._byClipCacheIndex = null;\t\t// for the memory manager\n\n\t\tthis._timeScaleInterpolant = null;\n\t\tthis._weightInterpolant = null;\n\n\t\tthis.loop = LoopRepeat;\n\t\tthis._loopCount = - 1;\n\n\t\t// global mixer time when the action is to be started\n\t\t// it's set back to 'null' upon start of the action\n\t\tthis._startTime = null;\n\n\t\t// scaled local time of the action\n\t\t// gets clamped or wrapped to 0..clip.duration according to loop\n\t\tthis.time = 0;\n\n\t\tthis.timeScale = 1;\n\t\tthis._effectiveTimeScale = 1;\n\n\t\tthis.weight = 1;\n\t\tthis._effectiveWeight = 1;\n\n\t\tthis.repetitions = Infinity; \t\t// no. of repetitions when looping\n\n\t\tthis.paused = false;\t\t\t\t// true -> zero effective time scale\n\t\tthis.enabled = true;\t\t\t\t// false -> zero effective weight\n\n\t\tthis.clampWhenFinished \t= false;\t// keep feeding the last frame?\n\n\t\tthis.zeroSlopeAtStart \t= true;\t\t// for smooth interpolation w/o separate\n\t\tthis.zeroSlopeAtEnd\t\t= true;\t\t// clips for start, loop and end\n\n\t}\n\n\tObject.assign( AnimationAction.prototype, {\n\n\t\t// State & Scheduling\n\n\t\tplay: function () {\n\n\t\t\tthis._mixer._activateAction( this );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tthis._mixer._deactivateAction( this );\n\n\t\t\treturn this.reset();\n\n\t\t},\n\n\t\treset: function () {\n\n\t\t\tthis.paused = false;\n\t\t\tthis.enabled = true;\n\n\t\t\tthis.time = 0;\t\t\t// restart clip\n\t\t\tthis._loopCount = - 1;\t// forget previous loops\n\t\t\tthis._startTime = null;\t// forget scheduling\n\n\t\t\treturn this.stopFading().stopWarping();\n\n\t\t},\n\n\t\tisRunning: function () {\n\n\t\t\treturn this.enabled && ! this.paused && this.timeScale !== 0 &&\n\t\t\t\t\tthis._startTime === null && this._mixer._isActiveAction( this );\n\n\t\t},\n\n\t\t// return true when play has been called\n\t\tisScheduled: function () {\n\n\t\t\treturn this._mixer._isActiveAction( this );\n\n\t\t},\n\n\t\tstartAt: function ( time ) {\n\n\t\t\tthis._startTime = time;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetLoop: function ( mode, repetitions ) {\n\n\t\t\tthis.loop = mode;\n\t\t\tthis.repetitions = repetitions;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Weight\n\n\t\t// set the weight stopping any scheduled fading\n\t\t// although .enabled = false yields an effective weight of zero, this\n\t\t// method does *not* change .enabled, because it would be confusing\n\t\tsetEffectiveWeight: function ( weight ) {\n\n\t\t\tthis.weight = weight;\n\n\t\t\t// note: same logic as when updated at runtime\n\t\t\tthis._effectiveWeight = this.enabled ? weight : 0;\n\n\t\t\treturn this.stopFading();\n\n\t\t},\n\n\t\t// return the weight considering fading and .enabled\n\t\tgetEffectiveWeight: function () {\n\n\t\t\treturn this._effectiveWeight;\n\n\t\t},\n\n\t\tfadeIn: function ( duration ) {\n\n\t\t\treturn this._scheduleFading( duration, 0, 1 );\n\n\t\t},\n\n\t\tfadeOut: function ( duration ) {\n\n\t\t\treturn this._scheduleFading( duration, 1, 0 );\n\n\t\t},\n\n\t\tcrossFadeFrom: function ( fadeOutAction, duration, warp ) {\n\n\t\t\tfadeOutAction.fadeOut( duration );\n\t\t\tthis.fadeIn( duration );\n\n\t\t\tif ( warp ) {\n\n\t\t\t\tvar fadeInDuration = this._clip.duration,\n\t\t\t\t\tfadeOutDuration = fadeOutAction._clip.duration,\n\n\t\t\t\t\tstartEndRatio = fadeOutDuration / fadeInDuration,\n\t\t\t\t\tendStartRatio = fadeInDuration / fadeOutDuration;\n\n\t\t\t\tfadeOutAction.warp( 1.0, startEndRatio, duration );\n\t\t\t\tthis.warp( endStartRatio, 1.0, duration );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcrossFadeTo: function ( fadeInAction, duration, warp ) {\n\n\t\t\treturn fadeInAction.crossFadeFrom( this, duration, warp );\n\n\t\t},\n\n\t\tstopFading: function () {\n\n\t\t\tvar weightInterpolant = this._weightInterpolant;\n\n\t\t\tif ( weightInterpolant !== null ) {\n\n\t\t\t\tthis._weightInterpolant = null;\n\t\t\t\tthis._mixer._takeBackControlInterpolant( weightInterpolant );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Time Scale Control\n\n\t\t// set the time scale stopping any scheduled warping\n\t\t// although .paused = true yields an effective time scale of zero, this\n\t\t// method does *not* change .paused, because it would be confusing\n\t\tsetEffectiveTimeScale: function ( timeScale ) {\n\n\t\t\tthis.timeScale = timeScale;\n\t\t\tthis._effectiveTimeScale = this.paused ? 0 : timeScale;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\t// return the time scale considering warping and .paused\n\t\tgetEffectiveTimeScale: function () {\n\n\t\t\treturn this._effectiveTimeScale;\n\n\t\t},\n\n\t\tsetDuration: function ( duration ) {\n\n\t\t\tthis.timeScale = this._clip.duration / duration;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\tsyncWith: function ( action ) {\n\n\t\t\tthis.time = action.time;\n\t\t\tthis.timeScale = action.timeScale;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\thalt: function ( duration ) {\n\n\t\t\treturn this.warp( this._effectiveTimeScale, 0, duration );\n\n\t\t},\n\n\t\twarp: function ( startTimeScale, endTimeScale, duration ) {\n\n\t\t\tvar mixer = this._mixer, now = mixer.time,\n\t\t\t\tinterpolant = this._timeScaleInterpolant,\n\n\t\t\t\ttimeScale = this.timeScale;\n\n\t\t\tif ( interpolant === null ) {\n\n\t\t\t\tinterpolant = mixer._lendControlInterpolant();\n\t\t\t\tthis._timeScaleInterpolant = interpolant;\n\n\t\t\t}\n\n\t\t\tvar times = interpolant.parameterPositions,\n\t\t\t\tvalues = interpolant.sampleValues;\n\n\t\t\ttimes[ 0 ] = now;\n\t\t\ttimes[ 1 ] = now + duration;\n\n\t\t\tvalues[ 0 ] = startTimeScale / timeScale;\n\t\t\tvalues[ 1 ] = endTimeScale / timeScale;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstopWarping: function () {\n\n\t\t\tvar timeScaleInterpolant = this._timeScaleInterpolant;\n\n\t\t\tif ( timeScaleInterpolant !== null ) {\n\n\t\t\t\tthis._timeScaleInterpolant = null;\n\t\t\t\tthis._mixer._takeBackControlInterpolant( timeScaleInterpolant );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Object Accessors\n\n\t\tgetMixer: function () {\n\n\t\t\treturn this._mixer;\n\n\t\t},\n\n\t\tgetClip: function () {\n\n\t\t\treturn this._clip;\n\n\t\t},\n\n\t\tgetRoot: function () {\n\n\t\t\treturn this._localRoot || this._mixer._root;\n\n\t\t},\n\n\t\t// Interna\n\n\t\t_update: function ( time, deltaTime, timeDirection, accuIndex ) {\n\n\t\t\t// called by the mixer\n\n\t\t\tif ( ! this.enabled ) {\n\n\t\t\t\t// call ._updateWeight() to update ._effectiveWeight\n\n\t\t\t\tthis._updateWeight( time );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar startTime = this._startTime;\n\n\t\t\tif ( startTime !== null ) {\n\n\t\t\t\t// check for scheduled start of action\n\n\t\t\t\tvar timeRunning = ( time - startTime ) * timeDirection;\n\t\t\t\tif ( timeRunning < 0 || timeDirection === 0 ) {\n\n\t\t\t\t\treturn; // yet to come / don't decide when delta = 0\n\n\t\t\t\t}\n\n\t\t\t\t// start\n\n\t\t\t\tthis._startTime = null; // unschedule\n\t\t\t\tdeltaTime = timeDirection * timeRunning;\n\n\t\t\t}\n\n\t\t\t// apply time scale and advance time\n\n\t\t\tdeltaTime *= this._updateTimeScale( time );\n\t\t\tvar clipTime = this._updateTime( deltaTime );\n\n\t\t\t// note: _updateTime may disable the action resulting in\n\t\t\t// an effective weight of 0\n\n\t\t\tvar weight = this._updateWeight( time );\n\n\t\t\tif ( weight > 0 ) {\n\n\t\t\t\tvar interpolants = this._interpolants;\n\t\t\t\tvar propertyMixers = this._propertyBindings;\n\n\t\t\t\tfor ( var j = 0, m = interpolants.length; j !== m; ++ j ) {\n\n\t\t\t\t\tinterpolants[ j ].evaluate( clipTime );\n\t\t\t\t\tpropertyMixers[ j ].accumulate( accuIndex, weight );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_updateWeight: function ( time ) {\n\n\t\t\tvar weight = 0;\n\n\t\t\tif ( this.enabled ) {\n\n\t\t\t\tweight = this.weight;\n\t\t\t\tvar interpolant = this._weightInterpolant;\n\n\t\t\t\tif ( interpolant !== null ) {\n\n\t\t\t\t\tvar interpolantValue = interpolant.evaluate( time )[ 0 ];\n\n\t\t\t\t\tweight *= interpolantValue;\n\n\t\t\t\t\tif ( time > interpolant.parameterPositions[ 1 ] ) {\n\n\t\t\t\t\t\tthis.stopFading();\n\n\t\t\t\t\t\tif ( interpolantValue === 0 ) {\n\n\t\t\t\t\t\t\t// faded out, disable\n\t\t\t\t\t\t\tthis.enabled = false;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis._effectiveWeight = weight;\n\t\t\treturn weight;\n\n\t\t},\n\n\t\t_updateTimeScale: function ( time ) {\n\n\t\t\tvar timeScale = 0;\n\n\t\t\tif ( ! this.paused ) {\n\n\t\t\t\ttimeScale = this.timeScale;\n\n\t\t\t\tvar interpolant = this._timeScaleInterpolant;\n\n\t\t\t\tif ( interpolant !== null ) {\n\n\t\t\t\t\tvar interpolantValue = interpolant.evaluate( time )[ 0 ];\n\n\t\t\t\t\ttimeScale *= interpolantValue;\n\n\t\t\t\t\tif ( time > interpolant.parameterPositions[ 1 ] ) {\n\n\t\t\t\t\t\tthis.stopWarping();\n\n\t\t\t\t\t\tif ( timeScale === 0 ) {\n\n\t\t\t\t\t\t\t// motion has halted, pause\n\t\t\t\t\t\t\tthis.paused = true;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// warp done - apply final time scale\n\t\t\t\t\t\t\tthis.timeScale = timeScale;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis._effectiveTimeScale = timeScale;\n\t\t\treturn timeScale;\n\n\t\t},\n\n\t\t_updateTime: function ( deltaTime ) {\n\n\t\t\tvar time = this.time + deltaTime;\n\t\t\tvar duration = this._clip.duration;\n\t\t\tvar loop = this.loop;\n\t\t\tvar loopCount = this._loopCount;\n\n\t\t\tvar pingPong = ( loop === LoopPingPong );\n\n\t\t\tif ( deltaTime === 0 ) {\n\n\t\t\t\tif ( loopCount === - 1 ) return time;\n\n\t\t\t\treturn ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time;\n\n\t\t\t}\n\n\t\t\tif ( loop === LoopOnce ) {\n\n\t\t\t\tif ( loopCount === - 1 ) {\n\n\t\t\t\t\t// just started\n\n\t\t\t\t\tthis._loopCount = 0;\n\t\t\t\t\tthis._setEndings( true, true, false );\n\n\t\t\t\t}\n\n\t\t\t\thandle_stop: {\n\n\t\t\t\t\tif ( time >= duration ) {\n\n\t\t\t\t\t\ttime = duration;\n\n\t\t\t\t\t} else if ( time < 0 ) {\n\n\t\t\t\t\t\ttime = 0;\n\n\t\t\t\t\t} else break handle_stop;\n\n\t\t\t\t\tif ( this.clampWhenFinished ) this.paused = true;\n\t\t\t\t\telse this.enabled = false;\n\n\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\ttype: 'finished', action: this,\n\t\t\t\t\t\tdirection: deltaTime < 0 ? - 1 : 1\n\t\t\t\t\t} );\n\n\t\t\t\t}\n\n\t\t\t} else { // repetitive Repeat or PingPong\n\n\t\t\t\tif ( loopCount === - 1 ) {\n\n\t\t\t\t\t// just started\n\n\t\t\t\t\tif ( deltaTime >= 0 ) {\n\n\t\t\t\t\t\tloopCount = 0;\n\n\t\t\t\t\t\tthis._setEndings( true, this.repetitions === 0, pingPong );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// when looping in reverse direction, the initial\n\t\t\t\t\t\t// transition through zero counts as a repetition,\n\t\t\t\t\t\t// so leave loopCount at -1\n\n\t\t\t\t\t\tthis._setEndings( this.repetitions === 0, true, pingPong );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( time >= duration || time < 0 ) {\n\n\t\t\t\t\t// wrap around\n\n\t\t\t\t\tvar loopDelta = Math.floor( time / duration ); // signed\n\t\t\t\t\ttime -= duration * loopDelta;\n\n\t\t\t\t\tloopCount += Math.abs( loopDelta );\n\n\t\t\t\t\tvar pending = this.repetitions - loopCount;\n\n\t\t\t\t\tif ( pending <= 0 ) {\n\n\t\t\t\t\t\t// have to stop (switch state, clamp time, fire event)\n\n\t\t\t\t\t\tif ( this.clampWhenFinished ) this.paused = true;\n\t\t\t\t\t\telse this.enabled = false;\n\n\t\t\t\t\t\ttime = deltaTime > 0 ? duration : 0;\n\n\t\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\t\ttype: 'finished', action: this,\n\t\t\t\t\t\t\tdirection: deltaTime > 0 ? 1 : - 1\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// keep running\n\n\t\t\t\t\t\tif ( pending === 1 ) {\n\n\t\t\t\t\t\t\t// entering the last round\n\n\t\t\t\t\t\t\tvar atStart = deltaTime < 0;\n\t\t\t\t\t\t\tthis._setEndings( atStart, ! atStart, pingPong );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tthis._setEndings( false, false, pingPong );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tthis._loopCount = loopCount;\n\n\t\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\t\ttype: 'loop', action: this, loopDelta: loopDelta\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( pingPong && ( loopCount & 1 ) === 1 ) {\n\n\t\t\t\t\t// invert time for the \"pong round\"\n\n\t\t\t\t\tthis.time = time;\n\t\t\t\t\treturn duration - time;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.time = time;\n\t\t\treturn time;\n\n\t\t},\n\n\t\t_setEndings: function ( atStart, atEnd, pingPong ) {\n\n\t\t\tvar settings = this._interpolantSettings;\n\n\t\t\tif ( pingPong ) {\n\n\t\t\t\tsettings.endingStart \t= ZeroSlopeEnding;\n\t\t\t\tsettings.endingEnd\t\t= ZeroSlopeEnding;\n\n\t\t\t} else {\n\n\t\t\t\t// assuming for LoopOnce atStart == atEnd == true\n\n\t\t\t\tif ( atStart ) {\n\n\t\t\t\t\tsettings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsettings.endingStart = WrapAroundEnding;\n\n\t\t\t\t}\n\n\t\t\t\tif ( atEnd ) {\n\n\t\t\t\t\tsettings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsettings.endingEnd \t = WrapAroundEnding;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_scheduleFading: function ( duration, weightNow, weightThen ) {\n\n\t\t\tvar mixer = this._mixer, now = mixer.time,\n\t\t\t\tinterpolant = this._weightInterpolant;\n\n\t\t\tif ( interpolant === null ) {\n\n\t\t\t\tinterpolant = mixer._lendControlInterpolant();\n\t\t\t\tthis._weightInterpolant = interpolant;\n\n\t\t\t}\n\n\t\t\tvar times = interpolant.parameterPositions,\n\t\t\t\tvalues = interpolant.sampleValues;\n\n\t\t\ttimes[ 0 ] = now; \t\t\t\tvalues[ 0 ] = weightNow;\n\t\t\ttimes[ 1 ] = now + duration;\tvalues[ 1 ] = weightThen;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Player for AnimationClips.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction AnimationMixer( root ) {\n\n\t\tthis._root = root;\n\t\tthis._initMemoryManager();\n\t\tthis._accuIndex = 0;\n\n\t\tthis.time = 0;\n\n\t\tthis.timeScale = 1.0;\n\n\t}\n\n\tAnimationMixer.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: AnimationMixer,\n\n\t\t_bindAction: function ( action, prototypeAction ) {\n\n\t\t\tvar root = action._localRoot || this._root,\n\t\t\t\ttracks = action._clip.tracks,\n\t\t\t\tnTracks = tracks.length,\n\t\t\t\tbindings = action._propertyBindings,\n\t\t\t\tinterpolants = action._interpolants,\n\t\t\t\trootUuid = root.uuid,\n\t\t\t\tbindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingsByName = bindingsByRoot[ rootUuid ];\n\n\t\t\tif ( bindingsByName === undefined ) {\n\n\t\t\t\tbindingsByName = {};\n\t\t\t\tbindingsByRoot[ rootUuid ] = bindingsByName;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i !== nTracks; ++ i ) {\n\n\t\t\t\tvar track = tracks[ i ],\n\t\t\t\t\ttrackName = track.name,\n\t\t\t\t\tbinding = bindingsByName[ trackName ];\n\n\t\t\t\tif ( binding !== undefined ) {\n\n\t\t\t\t\tbindings[ i ] = binding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tbinding = bindings[ i ];\n\n\t\t\t\t\tif ( binding !== undefined ) {\n\n\t\t\t\t\t\t// existing binding, make sure the cache knows\n\n\t\t\t\t\t\tif ( binding._cacheIndex === null ) {\n\n\t\t\t\t\t\t\t++ binding.referenceCount;\n\t\t\t\t\t\t\tthis._addInactiveBinding( binding, rootUuid, trackName );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar path = prototypeAction && prototypeAction.\n\t\t\t\t\t\t_propertyBindings[ i ].binding.parsedPath;\n\n\t\t\t\t\tbinding = new PropertyMixer(\n\t\t\t\t\t\tPropertyBinding.create( root, trackName, path ),\n\t\t\t\t\t\ttrack.ValueTypeName, track.getValueSize() );\n\n\t\t\t\t\t++ binding.referenceCount;\n\t\t\t\t\tthis._addInactiveBinding( binding, rootUuid, trackName );\n\n\t\t\t\t\tbindings[ i ] = binding;\n\n\t\t\t\t}\n\n\t\t\t\tinterpolants[ i ].resultBuffer = binding.buffer;\n\n\t\t\t}\n\n\t\t},\n\n\t\t_activateAction: function ( action ) {\n\n\t\t\tif ( ! this._isActiveAction( action ) ) {\n\n\t\t\t\tif ( action._cacheIndex === null ) {\n\n\t\t\t\t\t// this action has been forgotten by the cache, but the user\n\t\t\t\t\t// appears to be still using it -> rebind\n\n\t\t\t\t\tvar rootUuid = ( action._localRoot || this._root ).uuid,\n\t\t\t\t\t\tclipUuid = action._clip.uuid,\n\t\t\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ];\n\n\t\t\t\t\tthis._bindAction( action,\n\t\t\t\t\t\tactionsForClip && actionsForClip.knownActions[ 0 ] );\n\n\t\t\t\t\tthis._addInactiveAction( action, clipUuid, rootUuid );\n\n\t\t\t\t}\n\n\t\t\t\tvar bindings = action._propertyBindings;\n\n\t\t\t\t// increment reference counts / sort out state\n\t\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\t\tif ( binding.useCount ++ === 0 ) {\n\n\t\t\t\t\t\tthis._lendBinding( binding );\n\t\t\t\t\t\tbinding.saveOriginalState();\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis._lendAction( action );\n\n\t\t\t}\n\n\t\t},\n\n\t\t_deactivateAction: function ( action ) {\n\n\t\t\tif ( this._isActiveAction( action ) ) {\n\n\t\t\t\tvar bindings = action._propertyBindings;\n\n\t\t\t\t// decrement reference counts / sort out state\n\t\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\t\tif ( -- binding.useCount === 0 ) {\n\n\t\t\t\t\t\tbinding.restoreOriginalState();\n\t\t\t\t\t\tthis._takeBackBinding( binding );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis._takeBackAction( action );\n\n\t\t\t}\n\n\t\t},\n\n\t\t// Memory manager\n\n\t\t_initMemoryManager: function () {\n\n\t\t\tthis._actions = []; // 'nActiveActions' followed by inactive ones\n\t\t\tthis._nActiveActions = 0;\n\n\t\t\tthis._actionsByClip = {};\n\t\t\t// inside:\n\t\t\t// {\n\t\t\t// \t\tknownActions: Array< AnimationAction >\t- used as prototypes\n\t\t\t// \t\tactionByRoot: AnimationAction\t\t\t- lookup\n\t\t\t// }\n\n\n\t\t\tthis._bindings = []; // 'nActiveBindings' followed by inactive ones\n\t\t\tthis._nActiveBindings = 0;\n\n\t\t\tthis._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >\n\n\n\t\t\tthis._controlInterpolants = []; // same game as above\n\t\t\tthis._nActiveControlInterpolants = 0;\n\n\t\t\tvar scope = this;\n\n\t\t\tthis.stats = {\n\n\t\t\t\tactions: {\n\t\t\t\t\tget total() {\n\n\t\t\t\t\t\treturn scope._actions.length;\n\n\t\t\t\t\t},\n\t\t\t\t\tget inUse() {\n\n\t\t\t\t\t\treturn scope._nActiveActions;\n\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tbindings: {\n\t\t\t\t\tget total() {\n\n\t\t\t\t\t\treturn scope._bindings.length;\n\n\t\t\t\t\t},\n\t\t\t\t\tget inUse() {\n\n\t\t\t\t\t\treturn scope._nActiveBindings;\n\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tcontrolInterpolants: {\n\t\t\t\t\tget total() {\n\n\t\t\t\t\t\treturn scope._controlInterpolants.length;\n\n\t\t\t\t\t},\n\t\t\t\t\tget inUse() {\n\n\t\t\t\t\t\treturn scope._nActiveControlInterpolants;\n\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t},\n\n\t\t// Memory management for AnimationAction objects\n\n\t\t_isActiveAction: function ( action ) {\n\n\t\t\tvar index = action._cacheIndex;\n\t\t\treturn index !== null && index < this._nActiveActions;\n\n\t\t},\n\n\t\t_addInactiveAction: function ( action, clipUuid, rootUuid ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip === undefined ) {\n\n\t\t\t\tactionsForClip = {\n\n\t\t\t\t\tknownActions: [ action ],\n\t\t\t\t\tactionByRoot: {}\n\n\t\t\t\t};\n\n\t\t\t\taction._byClipCacheIndex = 0;\n\n\t\t\t\tactionsByClip[ clipUuid ] = actionsForClip;\n\n\t\t\t} else {\n\n\t\t\t\tvar knownActions = actionsForClip.knownActions;\n\n\t\t\t\taction._byClipCacheIndex = knownActions.length;\n\t\t\t\tknownActions.push( action );\n\n\t\t\t}\n\n\t\t\taction._cacheIndex = actions.length;\n\t\t\tactions.push( action );\n\n\t\t\tactionsForClip.actionByRoot[ rootUuid ] = action;\n\n\t\t},\n\n\t\t_removeInactiveAction: function ( action ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tlastInactiveAction = actions[ actions.length - 1 ],\n\t\t\t\tcacheIndex = action._cacheIndex;\n\n\t\t\tlastInactiveAction._cacheIndex = cacheIndex;\n\t\t\tactions[ cacheIndex ] = lastInactiveAction;\n\t\t\tactions.pop();\n\n\t\t\taction._cacheIndex = null;\n\n\n\t\t\tvar clipUuid = action._clip.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ],\n\t\t\t\tknownActionsForClip = actionsForClip.knownActions,\n\n\t\t\t\tlastKnownAction =\n\t\t\t\t\tknownActionsForClip[ knownActionsForClip.length - 1 ],\n\n\t\t\t\tbyClipCacheIndex = action._byClipCacheIndex;\n\n\t\t\tlastKnownAction._byClipCacheIndex = byClipCacheIndex;\n\t\t\tknownActionsForClip[ byClipCacheIndex ] = lastKnownAction;\n\t\t\tknownActionsForClip.pop();\n\n\t\t\taction._byClipCacheIndex = null;\n\n\n\t\t\tvar actionByRoot = actionsForClip.actionByRoot,\n\t\t\t\trootUuid = ( action._localRoot || this._root ).uuid;\n\n\t\t\tdelete actionByRoot[ rootUuid ];\n\n\t\t\tif ( knownActionsForClip.length === 0 ) {\n\n\t\t\t\tdelete actionsByClip[ clipUuid ];\n\n\t\t\t}\n\n\t\t\tthis._removeInactiveBindingsForAction( action );\n\n\t\t},\n\n\t\t_removeInactiveBindingsForAction: function ( action ) {\n\n\t\t\tvar bindings = action._propertyBindings;\n\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\tif ( -- binding.referenceCount === 0 ) {\n\n\t\t\t\t\tthis._removeInactiveBinding( binding );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_lendAction: function ( action ) {\n\n\t\t\t// [ active actions | inactive actions ]\n\t\t\t// [ active actions >| inactive actions ]\n\t\t\t// s a\n\t\t\t// <-swap->\n\t\t\t// a s\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tprevIndex = action._cacheIndex,\n\n\t\t\t\tlastActiveIndex = this._nActiveActions ++,\n\n\t\t\t\tfirstInactiveAction = actions[ lastActiveIndex ];\n\n\t\t\taction._cacheIndex = lastActiveIndex;\n\t\t\tactions[ lastActiveIndex ] = action;\n\n\t\t\tfirstInactiveAction._cacheIndex = prevIndex;\n\t\t\tactions[ prevIndex ] = firstInactiveAction;\n\n\t\t},\n\n\t\t_takeBackAction: function ( action ) {\n\n\t\t\t// [ active actions | inactive actions ]\n\t\t\t// [ active actions |< inactive actions ]\n\t\t\t// a s\n\t\t\t// <-swap->\n\t\t\t// s a\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tprevIndex = action._cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveActions,\n\n\t\t\t\tlastActiveAction = actions[ firstInactiveIndex ];\n\n\t\t\taction._cacheIndex = firstInactiveIndex;\n\t\t\tactions[ firstInactiveIndex ] = action;\n\n\t\t\tlastActiveAction._cacheIndex = prevIndex;\n\t\t\tactions[ prevIndex ] = lastActiveAction;\n\n\t\t},\n\n\t\t// Memory management for PropertyMixer objects\n\n\t\t_addInactiveBinding: function ( binding, rootUuid, trackName ) {\n\n\t\t\tvar bindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ],\n\n\t\t\t\tbindings = this._bindings;\n\n\t\t\tif ( bindingByName === undefined ) {\n\n\t\t\t\tbindingByName = {};\n\t\t\t\tbindingsByRoot[ rootUuid ] = bindingByName;\n\n\t\t\t}\n\n\t\t\tbindingByName[ trackName ] = binding;\n\n\t\t\tbinding._cacheIndex = bindings.length;\n\t\t\tbindings.push( binding );\n\n\t\t},\n\n\t\t_removeInactiveBinding: function ( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tpropBinding = binding.binding,\n\t\t\t\trootUuid = propBinding.rootNode.uuid,\n\t\t\t\ttrackName = propBinding.path,\n\t\t\t\tbindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ],\n\n\t\t\t\tlastInactiveBinding = bindings[ bindings.length - 1 ],\n\t\t\t\tcacheIndex = binding._cacheIndex;\n\n\t\t\tlastInactiveBinding._cacheIndex = cacheIndex;\n\t\t\tbindings[ cacheIndex ] = lastInactiveBinding;\n\t\t\tbindings.pop();\n\n\t\t\tdelete bindingByName[ trackName ];\n\n\t\t\tremove_empty_map: {\n\n\t\t\t\tfor ( var _ in bindingByName ) break remove_empty_map; // eslint-disable-line no-unused-vars\n\n\t\t\t\tdelete bindingsByRoot[ rootUuid ];\n\n\t\t\t}\n\n\t\t},\n\n\t\t_lendBinding: function ( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tprevIndex = binding._cacheIndex,\n\n\t\t\t\tlastActiveIndex = this._nActiveBindings ++,\n\n\t\t\t\tfirstInactiveBinding = bindings[ lastActiveIndex ];\n\n\t\t\tbinding._cacheIndex = lastActiveIndex;\n\t\t\tbindings[ lastActiveIndex ] = binding;\n\n\t\t\tfirstInactiveBinding._cacheIndex = prevIndex;\n\t\t\tbindings[ prevIndex ] = firstInactiveBinding;\n\n\t\t},\n\n\t\t_takeBackBinding: function ( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tprevIndex = binding._cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveBindings,\n\n\t\t\t\tlastActiveBinding = bindings[ firstInactiveIndex ];\n\n\t\t\tbinding._cacheIndex = firstInactiveIndex;\n\t\t\tbindings[ firstInactiveIndex ] = binding;\n\n\t\t\tlastActiveBinding._cacheIndex = prevIndex;\n\t\t\tbindings[ prevIndex ] = lastActiveBinding;\n\n\t\t},\n\n\n\t\t// Memory management of Interpolants for weight and time scale\n\n\t\t_lendControlInterpolant: function () {\n\n\t\t\tvar interpolants = this._controlInterpolants,\n\t\t\t\tlastActiveIndex = this._nActiveControlInterpolants ++,\n\t\t\t\tinterpolant = interpolants[ lastActiveIndex ];\n\n\t\t\tif ( interpolant === undefined ) {\n\n\t\t\t\tinterpolant = new LinearInterpolant(\n\t\t\t\t\tnew Float32Array( 2 ), new Float32Array( 2 ),\n\t\t\t\t\t1, this._controlInterpolantsResultBuffer );\n\n\t\t\t\tinterpolant.__cacheIndex = lastActiveIndex;\n\t\t\t\tinterpolants[ lastActiveIndex ] = interpolant;\n\n\t\t\t}\n\n\t\t\treturn interpolant;\n\n\t\t},\n\n\t\t_takeBackControlInterpolant: function ( interpolant ) {\n\n\t\t\tvar interpolants = this._controlInterpolants,\n\t\t\t\tprevIndex = interpolant.__cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveControlInterpolants,\n\n\t\t\t\tlastActiveInterpolant = interpolants[ firstInactiveIndex ];\n\n\t\t\tinterpolant.__cacheIndex = firstInactiveIndex;\n\t\t\tinterpolants[ firstInactiveIndex ] = interpolant;\n\n\t\t\tlastActiveInterpolant.__cacheIndex = prevIndex;\n\t\t\tinterpolants[ prevIndex ] = lastActiveInterpolant;\n\n\t\t},\n\n\t\t_controlInterpolantsResultBuffer: new Float32Array( 1 ),\n\n\t\t// return an action for a clip optionally using a custom root target\n\t\t// object (this method allocates a lot of dynamic memory in case a\n\t\t// previously unknown clip/root combination is specified)\n\t\tclipAction: function ( clip, optionalRoot ) {\n\n\t\t\tvar root = optionalRoot || this._root,\n\t\t\t\trootUuid = root.uuid,\n\n\t\t\t\tclipObject = typeof clip === 'string' ?\n\t\t\t\t\tAnimationClip.findByName( root, clip ) : clip,\n\n\t\t\t\tclipUuid = clipObject !== null ? clipObject.uuid : clip,\n\n\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ],\n\t\t\t\tprototypeAction = null;\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\tvar existingAction =\n\t\t\t\t\t\tactionsForClip.actionByRoot[ rootUuid ];\n\n\t\t\t\tif ( existingAction !== undefined ) {\n\n\t\t\t\t\treturn existingAction;\n\n\t\t\t\t}\n\n\t\t\t\t// we know the clip, so we don't have to parse all\n\t\t\t\t// the bindings again but can just copy\n\t\t\t\tprototypeAction = actionsForClip.knownActions[ 0 ];\n\n\t\t\t\t// also, take the clip from the prototype action\n\t\t\t\tif ( clipObject === null )\n\t\t\t\t\tclipObject = prototypeAction._clip;\n\n\t\t\t}\n\n\t\t\t// clip must be known when specified via string\n\t\t\tif ( clipObject === null ) return null;\n\n\t\t\t// allocate all resources required to run it\n\t\t\tvar newAction = new AnimationAction( this, clipObject, optionalRoot );\n\n\t\t\tthis._bindAction( newAction, prototypeAction );\n\n\t\t\t// and make the action known to the memory manager\n\t\t\tthis._addInactiveAction( newAction, clipUuid, rootUuid );\n\n\t\t\treturn newAction;\n\n\t\t},\n\n\t\t// get an existing action\n\t\texistingAction: function ( clip, optionalRoot ) {\n\n\t\t\tvar root = optionalRoot || this._root,\n\t\t\t\trootUuid = root.uuid,\n\n\t\t\t\tclipObject = typeof clip === 'string' ?\n\t\t\t\t\tAnimationClip.findByName( root, clip ) : clip,\n\n\t\t\t\tclipUuid = clipObject ? clipObject.uuid : clip,\n\n\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\treturn actionsForClip.actionByRoot[ rootUuid ] || null;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t},\n\n\t\t// deactivates all previously scheduled actions\n\t\tstopAllAction: function () {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tnActions = this._nActiveActions,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = this._nActiveBindings;\n\n\t\t\tthis._nActiveActions = 0;\n\t\t\tthis._nActiveBindings = 0;\n\n\t\t\tfor ( var i = 0; i !== nActions; ++ i ) {\n\n\t\t\t\tactions[ i ].reset();\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i !== nBindings; ++ i ) {\n\n\t\t\t\tbindings[ i ].useCount = 0;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// advance the time and update apply the animation\n\t\tupdate: function ( deltaTime ) {\n\n\t\t\tdeltaTime *= this.timeScale;\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tnActions = this._nActiveActions,\n\n\t\t\t\ttime = this.time += deltaTime,\n\t\t\t\ttimeDirection = Math.sign( deltaTime ),\n\n\t\t\t\taccuIndex = this._accuIndex ^= 1;\n\n\t\t\t// run active actions\n\n\t\t\tfor ( var i = 0; i !== nActions; ++ i ) {\n\n\t\t\t\tvar action = actions[ i ];\n\n\t\t\t\taction._update( time, deltaTime, timeDirection, accuIndex );\n\n\t\t\t}\n\n\t\t\t// update scene graph\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tnBindings = this._nActiveBindings;\n\n\t\t\tfor ( var i = 0; i !== nBindings; ++ i ) {\n\n\t\t\t\tbindings[ i ].apply( accuIndex );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// return this mixer's root target object\n\t\tgetRoot: function () {\n\n\t\t\treturn this._root;\n\n\t\t},\n\n\t\t// free all resources specific to a particular clip\n\t\tuncacheClip: function ( clip ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tclipUuid = clip.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\t// note: just calling _removeInactiveAction would mess up the\n\t\t\t\t// iteration state and also require updating the state we can\n\t\t\t\t// just throw away\n\n\t\t\t\tvar actionsToRemove = actionsForClip.knownActions;\n\n\t\t\t\tfor ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar action = actionsToRemove[ i ];\n\n\t\t\t\t\tthis._deactivateAction( action );\n\n\t\t\t\t\tvar cacheIndex = action._cacheIndex,\n\t\t\t\t\t\tlastInactiveAction = actions[ actions.length - 1 ];\n\n\t\t\t\t\taction._cacheIndex = null;\n\t\t\t\t\taction._byClipCacheIndex = null;\n\n\t\t\t\t\tlastInactiveAction._cacheIndex = cacheIndex;\n\t\t\t\t\tactions[ cacheIndex ] = lastInactiveAction;\n\t\t\t\t\tactions.pop();\n\n\t\t\t\t\tthis._removeInactiveBindingsForAction( action );\n\n\t\t\t\t}\n\n\t\t\t\tdelete actionsByClip[ clipUuid ];\n\n\t\t\t}\n\n\t\t},\n\n\t\t// free all resources specific to a particular root target object\n\t\tuncacheRoot: function ( root ) {\n\n\t\t\tvar rootUuid = root.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip;\n\n\t\t\tfor ( var clipUuid in actionsByClip ) {\n\n\t\t\t\tvar actionByRoot = actionsByClip[ clipUuid ].actionByRoot,\n\t\t\t\t\taction = actionByRoot[ rootUuid ];\n\n\t\t\t\tif ( action !== undefined ) {\n\n\t\t\t\t\tthis._deactivateAction( action );\n\t\t\t\t\tthis._removeInactiveAction( action );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar bindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ];\n\n\t\t\tif ( bindingByName !== undefined ) {\n\n\t\t\t\tfor ( var trackName in bindingByName ) {\n\n\t\t\t\t\tvar binding = bindingByName[ trackName ];\n\t\t\t\t\tbinding.restoreOriginalState();\n\t\t\t\t\tthis._removeInactiveBinding( binding );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t// remove a targeted clip from the cache\n\t\tuncacheAction: function ( clip, optionalRoot ) {\n\n\t\t\tvar action = this.existingAction( clip, optionalRoot );\n\n\t\t\tif ( action !== null ) {\n\n\t\t\t\tthis._deactivateAction( action );\n\t\t\t\tthis._removeInactiveAction( action );\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Uniform( value ) {\n\n\t\tif ( typeof value === 'string' ) {\n\n\t\t\tconsole.warn( 'THREE.Uniform: Type parameter is no longer needed.' );\n\t\t\tvalue = arguments[ 1 ];\n\n\t\t}\n\n\t\tthis.value = value;\n\n\t}\n\n\tUniform.prototype.clone = function () {\n\n\t\treturn new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );\n\n\t};\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedBufferGeometry() {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'InstancedBufferGeometry';\n\t\tthis.maxInstancedCount = undefined;\n\n\t}\n\n\tInstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {\n\n\t\tconstructor: InstancedBufferGeometry,\n\n\t\tisInstancedBufferGeometry: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tBufferGeometry.prototype.copy.call( this, source );\n\n\t\t\tthis.maxInstancedCount = source.maxInstancedCount;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {\n\n\t\tInterleavedBuffer.call( this, array, stride );\n\n\t\tthis.meshPerAttribute = meshPerAttribute || 1;\n\n\t}\n\n\tInstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {\n\n\t\tconstructor: InstancedInterleavedBuffer,\n\n\t\tisInstancedInterleavedBuffer: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tInterleavedBuffer.prototype.copy.call( this, source );\n\n\t\t\tthis.meshPerAttribute = source.meshPerAttribute;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedBufferAttribute( array, itemSize, meshPerAttribute ) {\n\n\t\tBufferAttribute.call( this, array, itemSize );\n\n\t\tthis.meshPerAttribute = meshPerAttribute || 1;\n\n\t}\n\n\tInstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {\n\n\t\tconstructor: InstancedBufferAttribute,\n\n\t\tisInstancedBufferAttribute: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tBufferAttribute.prototype.copy.call( this, source );\n\n\t\t\tthis.meshPerAttribute = source.meshPerAttribute;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author bhouston / http://clara.io/\n\t * @author stephomi / http://stephaneginier.com/\n\t */\n\n\tfunction Raycaster( origin, direction, near, far ) {\n\n\t\tthis.ray = new Ray( origin, direction );\n\t\t// direction is assumed to be normalized (for accurate distance calculations)\n\n\t\tthis.near = near || 0;\n\t\tthis.far = far || Infinity;\n\n\t\tthis.params = {\n\t\t\tMesh: {},\n\t\t\tLine: {},\n\t\t\tLOD: {},\n\t\t\tPoints: { threshold: 1 },\n\t\t\tSprite: {}\n\t\t};\n\n\t\tObject.defineProperties( this.params, {\n\t\t\tPointCloud: {\n\t\t\t\tget: function () {\n\n\t\t\t\t\tconsole.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );\n\t\t\t\t\treturn this.Points;\n\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t}\n\n\tfunction ascSort( a, b ) {\n\n\t\treturn a.distance - b.distance;\n\n\t}\n\n\tfunction intersectObject( object, raycaster, intersects, recursive ) {\n\n\t\tif ( object.visible === false ) return;\n\n\t\tobject.raycast( raycaster, intersects );\n\n\t\tif ( recursive === true ) {\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tintersectObject( children[ i ], raycaster, intersects, true );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tObject.assign( Raycaster.prototype, {\n\n\t\tlinePrecision: 1,\n\n\t\tset: function ( origin, direction ) {\n\n\t\t\t// direction is assumed to be normalized (for accurate distance calculations)\n\n\t\t\tthis.ray.set( origin, direction );\n\n\t\t},\n\n\t\tsetFromCamera: function ( coords, camera ) {\n\n\t\t\tif ( ( camera && camera.isPerspectiveCamera ) ) {\n\n\t\t\t\tthis.ray.origin.setFromMatrixPosition( camera.matrixWorld );\n\t\t\t\tthis.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();\n\n\t\t\t} else if ( ( camera && camera.isOrthographicCamera ) ) {\n\n\t\t\t\tthis.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera\n\t\t\t\tthis.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.error( 'THREE.Raycaster: Unsupported camera type.' );\n\n\t\t\t}\n\n\t\t},\n\n\t\tintersectObject: function ( object, recursive, optionalTarget ) {\n\n\t\t\tvar intersects = optionalTarget || [];\n\n\t\t\tintersectObject( object, this, intersects, recursive );\n\n\t\t\tintersects.sort( ascSort );\n\n\t\t\treturn intersects;\n\n\t\t},\n\n\t\tintersectObjects: function ( objects, recursive, optionalTarget ) {\n\n\t\t\tvar intersects = optionalTarget || [];\n\n\t\t\tif ( Array.isArray( objects ) === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );\n\t\t\t\treturn intersects;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, l = objects.length; i < l; i ++ ) {\n\n\t\t\t\tintersectObject( objects[ i ], this, intersects, recursive );\n\n\t\t\t}\n\n\t\t\tintersects.sort( ascSort );\n\n\t\t\treturn intersects;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Clock( autoStart ) {\n\n\t\tthis.autoStart = ( autoStart !== undefined ) ? autoStart : true;\n\n\t\tthis.startTime = 0;\n\t\tthis.oldTime = 0;\n\t\tthis.elapsedTime = 0;\n\n\t\tthis.running = false;\n\n\t}\n\n\tObject.assign( Clock.prototype, {\n\n\t\tstart: function () {\n\n\t\t\tthis.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732\n\n\t\t\tthis.oldTime = this.startTime;\n\t\t\tthis.elapsedTime = 0;\n\t\t\tthis.running = true;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tthis.getElapsedTime();\n\t\t\tthis.running = false;\n\t\t\tthis.autoStart = false;\n\n\t\t},\n\n\t\tgetElapsedTime: function () {\n\n\t\t\tthis.getDelta();\n\t\t\treturn this.elapsedTime;\n\n\t\t},\n\n\t\tgetDelta: function () {\n\n\t\t\tvar diff = 0;\n\n\t\t\tif ( this.autoStart && ! this.running ) {\n\n\t\t\t\tthis.start();\n\t\t\t\treturn 0;\n\n\t\t\t}\n\n\t\t\tif ( this.running ) {\n\n\t\t\t\tvar newTime = ( typeof performance === 'undefined' ? Date : performance ).now();\n\n\t\t\t\tdiff = ( newTime - this.oldTime ) / 1000;\n\t\t\t\tthis.oldTime = newTime;\n\n\t\t\t\tthis.elapsedTime += diff;\n\n\t\t\t}\n\n\t\t\treturn diff;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system\n\t *\n\t * The poles (phi) are at the positive and negative y axis.\n\t * The equator starts at positive z.\n\t */\n\n\tfunction Spherical( radius, phi, theta ) {\n\n\t\tthis.radius = ( radius !== undefined ) ? radius : 1.0;\n\t\tthis.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole\n\t\tthis.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere\n\n\t\treturn this;\n\n\t}\n\n\tObject.assign( Spherical.prototype, {\n\n\t\tset: function ( radius, phi, theta ) {\n\n\t\t\tthis.radius = radius;\n\t\t\tthis.phi = phi;\n\t\t\tthis.theta = theta;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( other ) {\n\n\t\t\tthis.radius = other.radius;\n\t\t\tthis.phi = other.phi;\n\t\t\tthis.theta = other.theta;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// restrict phi to be betwee EPS and PI-EPS\n\t\tmakeSafe: function () {\n\n\t\t\tvar EPS = 0.000001;\n\t\t\tthis.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromVector3: function ( vec3 ) {\n\n\t\t\tthis.radius = vec3.length();\n\n\t\t\tif ( this.radius === 0 ) {\n\n\t\t\t\tthis.theta = 0;\n\t\t\t\tthis.phi = 0;\n\n\t\t\t} else {\n\n\t\t\t\tthis.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis\n\t\t\t\tthis.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system\n\t *\n\t */\n\n\tfunction Cylindrical( radius, theta, y ) {\n\n\t\tthis.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane\n\t\tthis.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis\n\t\tthis.y = ( y !== undefined ) ? y : 0; // height above the x-z plane\n\n\t\treturn this;\n\n\t}\n\n\tObject.assign( Cylindrical.prototype, {\n\n\t\tset: function ( radius, theta, y ) {\n\n\t\t\tthis.radius = radius;\n\t\t\tthis.theta = theta;\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( other ) {\n\n\t\t\tthis.radius = other.radius;\n\t\t\tthis.theta = other.theta;\n\t\t\tthis.y = other.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromVector3: function ( vec3 ) {\n\n\t\t\tthis.radius = Math.sqrt( vec3.x * vec3.x + vec3.z * vec3.z );\n\t\t\tthis.theta = Math.atan2( vec3.x, vec3.z );\n\t\t\tthis.y = vec3.y;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Box2( min, max ) {\n\n\t\tthis.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );\n\t\tthis.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );\n\n\t}\n\n\tObject.assign( Box2.prototype, {\n\n\t\tset: function ( min, max ) {\n\n\t\t\tthis.min.copy( min );\n\t\t\tthis.max.copy( max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\tthis.expandByPoint( points[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCenterAndSize: function () {\n\n\t\t\tvar v1 = new Vector2();\n\n\t\t\treturn function setFromCenterAndSize( center, size ) {\n\n\t\t\t\tvar halfSize = v1.copy( size ).multiplyScalar( 0.5 );\n\t\t\t\tthis.min.copy( center ).sub( halfSize );\n\t\t\t\tthis.max.copy( center ).add( halfSize );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( box ) {\n\n\t\t\tthis.min.copy( box.min );\n\t\t\tthis.max.copy( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeEmpty: function () {\n\n\t\t\tthis.min.x = this.min.y = + Infinity;\n\t\t\tthis.max.x = this.max.y = - Infinity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tisEmpty: function () {\n\n\t\t\t// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes\n\n\t\t\treturn ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );\n\n\t\t},\n\n\t\tgetCenter: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .getCenter() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tgetSize: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .getSize() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min );\n\n\t\t},\n\n\t\texpandByPoint: function ( point ) {\n\n\t\t\tthis.min.min( point );\n\t\t\tthis.max.max( point );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByVector: function ( vector ) {\n\n\t\t\tthis.min.sub( vector );\n\t\t\tthis.max.add( vector );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByScalar: function ( scalar ) {\n\n\t\t\tthis.min.addScalar( - scalar );\n\t\t\tthis.max.addScalar( scalar );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn point.x < this.min.x || point.x > this.max.x ||\n\t\t\t\tpoint.y < this.min.y || point.y > this.max.y ? false : true;\n\n\t\t},\n\n\t\tcontainsBox: function ( box ) {\n\n\t\t\treturn this.min.x <= box.min.x && box.max.x <= this.max.x &&\n\t\t\t\tthis.min.y <= box.min.y && box.max.y <= this.max.y;\n\n\t\t},\n\n\t\tgetParameter: function ( point, target ) {\n\n\t\t\t// This can potentially have a divide by zero if the box\n\t\t\t// has a size dimension of 0.\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .getParameter() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn target.set(\n\t\t\t\t( point.x - this.min.x ) / ( this.max.x - this.min.x ),\n\t\t\t\t( point.y - this.min.y ) / ( this.max.y - this.min.y )\n\t\t\t);\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\t// using 4 splitting planes to rule out intersections\n\n\t\t\treturn box.max.x < this.min.x || box.min.x > this.max.x ||\n\t\t\t\tbox.max.y < this.min.y || box.min.y > this.max.y ? false : true;\n\n\t\t},\n\n\t\tclampPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .clampPoint() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn target.copy( point ).clamp( this.min, this.max );\n\n\t\t},\n\n\t\tdistanceToPoint: function () {\n\n\t\t\tvar v1 = new Vector2();\n\n\t\t\treturn function distanceToPoint( point ) {\n\n\t\t\t\tvar clampedPoint = v1.copy( point ).clamp( this.min, this.max );\n\t\t\t\treturn clampedPoint.sub( point ).length();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersect: function ( box ) {\n\n\t\t\tthis.min.max( box.min );\n\t\t\tthis.max.min( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tunion: function ( box ) {\n\n\t\t\tthis.min.min( box.min );\n\t\t\tthis.max.max( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.min.add( offset );\n\t\t\tthis.max.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( box ) {\n\n\t\t\treturn box.min.equals( this.min ) && box.max.equals( this.max );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Line3( start, end ) {\n\n\t\tthis.start = ( start !== undefined ) ? start : new Vector3();\n\t\tthis.end = ( end !== undefined ) ? end : new Vector3();\n\n\t}\n\n\tObject.assign( Line3.prototype, {\n\n\t\tset: function ( start, end ) {\n\n\t\t\tthis.start.copy( start );\n\t\t\tthis.end.copy( end );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( line ) {\n\n\t\t\tthis.start.copy( line.start );\n\t\t\tthis.end.copy( line.end );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetCenter: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .getCenter() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tdelta: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .delta() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.subVectors( this.end, this.start );\n\n\t\t},\n\n\t\tdistanceSq: function () {\n\n\t\t\treturn this.start.distanceToSquared( this.end );\n\n\t\t},\n\n\t\tdistance: function () {\n\n\t\t\treturn this.start.distanceTo( this.end );\n\n\t\t},\n\n\t\tat: function ( t, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .at() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.delta( target ).multiplyScalar( t ).add( this.start );\n\n\t\t},\n\n\t\tclosestPointToPointParameter: function () {\n\n\t\t\tvar startP = new Vector3();\n\t\t\tvar startEnd = new Vector3();\n\n\t\t\treturn function closestPointToPointParameter( point, clampToLine ) {\n\n\t\t\t\tstartP.subVectors( point, this.start );\n\t\t\t\tstartEnd.subVectors( this.end, this.start );\n\n\t\t\t\tvar startEnd2 = startEnd.dot( startEnd );\n\t\t\t\tvar startEnd_startP = startEnd.dot( startP );\n\n\t\t\t\tvar t = startEnd_startP / startEnd2;\n\n\t\t\t\tif ( clampToLine ) {\n\n\t\t\t\t\tt = _Math.clamp( t, 0, 1 );\n\n\t\t\t\t}\n\n\t\t\t\treturn t;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclosestPointToPoint: function ( point, clampToLine, target ) {\n\n\t\t\tvar t = this.closestPointToPointParameter( point, clampToLine );\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .closestPointToPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.delta( target ).multiplyScalar( t ).add( this.start );\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\tthis.start.applyMatrix4( matrix );\n\t\t\tthis.end.applyMatrix4( matrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( line ) {\n\n\t\t\treturn line.start.equals( this.start ) && line.end.equals( this.end );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction ImmediateRenderObject( material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.material = material;\n\t\tthis.render = function ( /* renderCallback */ ) {};\n\n\t}\n\n\tImmediateRenderObject.prototype = Object.create( Object3D.prototype );\n\tImmediateRenderObject.prototype.constructor = ImmediateRenderObject;\n\n\tImmediateRenderObject.prototype.isImmediateRenderObject = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction VertexNormalsHelper( object, size, hex, linewidth ) {\n\n\t\tthis.object = object;\n\n\t\tthis.size = ( size !== undefined ) ? size : 1;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xff0000;\n\n\t\tvar width = ( linewidth !== undefined ) ? linewidth : 1;\n\n\t\t//\n\n\t\tvar nNormals = 0;\n\n\t\tvar objGeometry = this.object.geometry;\n\n\t\tif ( objGeometry && objGeometry.isGeometry ) {\n\n\t\t\tnNormals = objGeometry.faces.length * 3;\n\n\t\t} else if ( objGeometry && objGeometry.isBufferGeometry ) {\n\n\t\t\tnNormals = objGeometry.attributes.normal.count;\n\n\t\t}\n\n\t\t//\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );\n\n\t\tgeometry.addAttribute( 'position', positions );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );\n\n\t\t//\n\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\t}\n\n\tVertexNormalsHelper.prototype = Object.create( LineSegments.prototype );\n\tVertexNormalsHelper.prototype.constructor = VertexNormalsHelper;\n\n\tVertexNormalsHelper.prototype.update = ( function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar normalMatrix = new Matrix3();\n\n\t\treturn function update() {\n\n\t\t\tvar keys = [ 'a', 'b', 'c' ];\n\n\t\t\tthis.object.updateMatrixWorld( true );\n\n\t\t\tnormalMatrix.getNormalMatrix( this.object.matrixWorld );\n\n\t\t\tvar matrixWorld = this.object.matrixWorld;\n\n\t\t\tvar position = this.geometry.attributes.position;\n\n\t\t\t//\n\n\t\t\tvar objGeometry = this.object.geometry;\n\n\t\t\tif ( objGeometry && objGeometry.isGeometry ) {\n\n\t\t\t\tvar vertices = objGeometry.vertices;\n\n\t\t\t\tvar faces = objGeometry.faces;\n\n\t\t\t\tvar idx = 0;\n\n\t\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\t\tfor ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar vertex = vertices[ face[ keys[ j ] ] ];\n\n\t\t\t\t\t\tvar normal = face.vertexNormals[ j ];\n\n\t\t\t\t\t\tv1.copy( vertex ).applyMatrix4( matrixWorld );\n\n\t\t\t\t\t\tv2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else if ( objGeometry && objGeometry.isBufferGeometry ) {\n\n\t\t\t\tvar objPos = objGeometry.attributes.position;\n\n\t\t\t\tvar objNorm = objGeometry.attributes.normal;\n\n\t\t\t\tvar idx = 0;\n\n\t\t\t\t// for simplicity, ignore index and drawcalls, and render every normal\n\n\t\t\t\tfor ( var j = 0, jl = objPos.count; j < jl; j ++ ) {\n\n\t\t\t\t\tv1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );\n\n\t\t\t\t\tv2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );\n\n\t\t\t\t\tv2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t};\n\n\t}() );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction SpotLightHelper( light, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = [\n\t\t\t0, 0, 0, \t0, 0, 1,\n\t\t\t0, 0, 0, \t1, 0, 1,\n\t\t\t0, 0, 0,\t- 1, 0, 1,\n\t\t\t0, 0, 0, \t0, 1, 1,\n\t\t\t0, 0, 0, \t0, - 1, 1\n\t\t];\n\n\t\tfor ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {\n\n\t\t\tvar p1 = ( i / l ) * Math.PI * 2;\n\t\t\tvar p2 = ( j / l ) * Math.PI * 2;\n\n\t\t\tpositions.push(\n\t\t\t\tMath.cos( p1 ), Math.sin( p1 ), 1,\n\t\t\t\tMath.cos( p2 ), Math.sin( p2 ), 1\n\t\t\t);\n\n\t\t}\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tthis.cone = new LineSegments( geometry, material );\n\t\tthis.add( this.cone );\n\n\t\tthis.update();\n\n\t}\n\n\tSpotLightHelper.prototype = Object.create( Object3D.prototype );\n\tSpotLightHelper.prototype.constructor = SpotLightHelper;\n\n\tSpotLightHelper.prototype.dispose = function () {\n\n\t\tthis.cone.geometry.dispose();\n\t\tthis.cone.material.dispose();\n\n\t};\n\n\tSpotLightHelper.prototype.update = function () {\n\n\t\tvar vector = new Vector3();\n\t\tvar vector2 = new Vector3();\n\n\t\treturn function update() {\n\n\t\t\tthis.light.updateMatrixWorld();\n\n\t\t\tvar coneLength = this.light.distance ? this.light.distance : 1000;\n\t\t\tvar coneWidth = coneLength * Math.tan( this.light.angle );\n\n\t\t\tthis.cone.scale.set( coneWidth, coneWidth, coneLength );\n\n\t\t\tvector.setFromMatrixPosition( this.light.matrixWorld );\n\t\t\tvector2.setFromMatrixPosition( this.light.target.matrixWorld );\n\n\t\t\tthis.cone.lookAt( vector2.sub( vector ) );\n\n\t\t\tif ( this.color !== undefined ) {\n\n\t\t\t\tthis.cone.material.color.set( this.color );\n\n\t\t\t} else {\n\n\t\t\t\tthis.cone.material.color.copy( this.light.color );\n\n\t\t\t}\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author Sean Griffin / http://twitter.com/sgrif\n\t * @author Michael Guerrero / http://realitymeltdown.com\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author ikerr / http://verold.com\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction getBoneList( object ) {\n\n\t\tvar boneList = [];\n\n\t\tif ( object && object.isBone ) {\n\n\t\t\tboneList.push( object );\n\n\t\t}\n\n\t\tfor ( var i = 0; i < object.children.length; i ++ ) {\n\n\t\t\tboneList.push.apply( boneList, getBoneList( object.children[ i ] ) );\n\n\t\t}\n\n\t\treturn boneList;\n\n\t}\n\n\tfunction SkeletonHelper( object ) {\n\n\t\tvar bones = getBoneList( object );\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar vertices = [];\n\t\tvar colors = [];\n\n\t\tvar color1 = new Color( 0, 0, 1 );\n\t\tvar color2 = new Color( 0, 1, 0 );\n\n\t\tfor ( var i = 0; i < bones.length; i ++ ) {\n\n\t\t\tvar bone = bones[ i ];\n\n\t\t\tif ( bone.parent && bone.parent.isBone ) {\n\n\t\t\t\tvertices.push( 0, 0, 0 );\n\t\t\t\tvertices.push( 0, 0, 0 );\n\t\t\t\tcolors.push( color1.r, color1.g, color1.b );\n\t\t\t\tcolors.push( color2.r, color2.g, color2.b );\n\n\t\t\t}\n\n\t\t}\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t\tthis.root = object;\n\t\tthis.bones = bones;\n\n\t\tthis.matrix = object.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t}\n\n\tSkeletonHelper.prototype = Object.create( LineSegments.prototype );\n\tSkeletonHelper.prototype.constructor = SkeletonHelper;\n\n\tSkeletonHelper.prototype.updateMatrixWorld = function () {\n\n\t\tvar vector = new Vector3();\n\n\t\tvar boneMatrix = new Matrix4();\n\t\tvar matrixWorldInv = new Matrix4();\n\n\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\tvar bones = this.bones;\n\n\t\t\tvar geometry = this.geometry;\n\t\t\tvar position = geometry.getAttribute( 'position' );\n\n\t\t\tmatrixWorldInv.getInverse( this.root.matrixWorld );\n\n\t\t\tfor ( var i = 0, j = 0; i < bones.length; i ++ ) {\n\n\t\t\t\tvar bone = bones[ i ];\n\n\t\t\t\tif ( bone.parent && bone.parent.isBone ) {\n\n\t\t\t\t\tboneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );\n\t\t\t\t\tvector.setFromMatrixPosition( boneMatrix );\n\t\t\t\t\tposition.setXYZ( j, vector.x, vector.y, vector.z );\n\n\t\t\t\t\tboneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );\n\t\t\t\t\tvector.setFromMatrixPosition( boneMatrix );\n\t\t\t\t\tposition.setXYZ( j + 1, vector.x, vector.y, vector.z );\n\n\t\t\t\t\tj += 2;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tgeometry.getAttribute( 'position' ).needsUpdate = true;\n\n\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction PointLightHelper( light, sphereSize, color ) {\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.color = color;\n\n\t\tvar geometry = new SphereBufferGeometry( sphereSize, 4, 2 );\n\t\tvar material = new MeshBasicMaterial( { wireframe: true, fog: false } );\n\n\t\tMesh.call( this, geometry, material );\n\n\t\tthis.matrix = this.light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\n\t\t/*\n\t\tvar distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );\n\t\tvar distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );\n\n\t\tthis.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );\n\t\tthis.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );\n\n\t\tvar d = light.distance;\n\n\t\tif ( d === 0.0 ) {\n\n\t\t\tthis.lightDistance.visible = false;\n\n\t\t} else {\n\n\t\t\tthis.lightDistance.scale.set( d, d, d );\n\n\t\t}\n\n\t\tthis.add( this.lightDistance );\n\t\t*/\n\n\t}\n\n\tPointLightHelper.prototype = Object.create( Mesh.prototype );\n\tPointLightHelper.prototype.constructor = PointLightHelper;\n\n\tPointLightHelper.prototype.dispose = function () {\n\n\t\tthis.geometry.dispose();\n\t\tthis.material.dispose();\n\n\t};\n\n\tPointLightHelper.prototype.update = function () {\n\n\t\tif ( this.color !== undefined ) {\n\n\t\t\tthis.material.color.set( this.color );\n\n\t\t} else {\n\n\t\t\tthis.material.color.copy( this.light.color );\n\n\t\t}\n\n\t\t/*\n\t\tvar d = this.light.distance;\n\n\t\tif ( d === 0.0 ) {\n\n\t\t\tthis.lightDistance.visible = false;\n\n\t\t} else {\n\n\t\t\tthis.lightDistance.visible = true;\n\t\t\tthis.lightDistance.scale.set( d, d, d );\n\n\t\t}\n\t\t*/\n\n\t};\n\n\t/**\n\t * @author abelnation / http://github.com/abelnation\n\t * @author Mugen87 / http://github.com/Mugen87\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction RectAreaLightHelper( light, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tgeometry.addAttribute( 'position', new BufferAttribute( new Float32Array( 5 * 3 ), 3 ) );\n\n\t\tthis.line = new Line( geometry, material );\n\t\tthis.add( this.line );\n\n\n\t\tthis.update();\n\n\t}\n\n\tRectAreaLightHelper.prototype = Object.create( Object3D.prototype );\n\tRectAreaLightHelper.prototype.constructor = RectAreaLightHelper;\n\n\tRectAreaLightHelper.prototype.dispose = function () {\n\n\t\tthis.children[ 0 ].geometry.dispose();\n\t\tthis.children[ 0 ].material.dispose();\n\n\t};\n\n\tRectAreaLightHelper.prototype.update = function () {\n\n\t\t// calculate new dimensions of the helper\n\n\t\tvar hx = this.light.width * 0.5;\n\t\tvar hy = this.light.height * 0.5;\n\n\t\tvar position = this.line.geometry.attributes.position;\n\t\tvar array = position.array;\n\n\t\t// update vertices\n\n\t\tarray[ 0 ] = hx; array[ 1 ] = - hy; array[ 2 ] = 0;\n\t\tarray[ 3 ] = hx; array[ 4 ] = hy; array[ 5 ] = 0;\n\t\tarray[ 6 ] = - hx; array[ 7 ] = hy; array[ 8 ] = 0;\n\t\tarray[ 9 ] = - hx; array[ 10 ] = - hy; array[ 11 ] = 0;\n\t\tarray[ 12 ] = hx; array[ 13 ] = - hy; array[ 14 ] = 0;\n\n\t\tposition.needsUpdate = true;\n\n\t\tif ( this.color !== undefined ) {\n\n\t\t\tthis.line.material.color.set( this.color );\n\n\t\t} else {\n\n\t\t\tthis.line.material.color.copy( this.light.color );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction HemisphereLightHelper( light, size, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tvar geometry = new OctahedronBufferGeometry( size );\n\t\tgeometry.rotateY( Math.PI * 0.5 );\n\n\t\tthis.material = new MeshBasicMaterial( { wireframe: true, fog: false } );\n\t\tif ( this.color === undefined ) this.material.vertexColors = VertexColors;\n\n\t\tvar position = geometry.getAttribute( 'position' );\n\t\tvar colors = new Float32Array( position.count * 3 );\n\n\t\tgeometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );\n\n\t\tthis.add( new Mesh( geometry, this.material ) );\n\n\t\tthis.update();\n\n\t}\n\n\tHemisphereLightHelper.prototype = Object.create( Object3D.prototype );\n\tHemisphereLightHelper.prototype.constructor = HemisphereLightHelper;\n\n\tHemisphereLightHelper.prototype.dispose = function () {\n\n\t\tthis.children[ 0 ].geometry.dispose();\n\t\tthis.children[ 0 ].material.dispose();\n\n\t};\n\n\tHemisphereLightHelper.prototype.update = function () {\n\n\t\tvar vector = new Vector3();\n\n\t\tvar color1 = new Color();\n\t\tvar color2 = new Color();\n\n\t\treturn function update() {\n\n\t\t\tvar mesh = this.children[ 0 ];\n\n\t\t\tif ( this.color !== undefined ) {\n\n\t\t\t\tthis.material.color.set( this.color );\n\n\t\t\t} else {\n\n\t\t\t\tvar colors = mesh.geometry.getAttribute( 'color' );\n\n\t\t\t\tcolor1.copy( this.light.color );\n\t\t\t\tcolor2.copy( this.light.groundColor );\n\n\t\t\t\tfor ( var i = 0, l = colors.count; i < l; i ++ ) {\n\n\t\t\t\t\tvar color = ( i < ( l / 2 ) ) ? color1 : color2;\n\n\t\t\t\t\tcolors.setXYZ( i, color.r, color.g, color.b );\n\n\t\t\t\t}\n\n\t\t\t\tcolors.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tmesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction GridHelper( size, divisions, color1, color2 ) {\n\n\t\tsize = size || 10;\n\t\tdivisions = divisions || 10;\n\t\tcolor1 = new Color( color1 !== undefined ? color1 : 0x444444 );\n\t\tcolor2 = new Color( color2 !== undefined ? color2 : 0x888888 );\n\n\t\tvar center = divisions / 2;\n\t\tvar step = size / divisions;\n\t\tvar halfSize = size / 2;\n\n\t\tvar vertices = [], colors = [];\n\n\t\tfor ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {\n\n\t\t\tvertices.push( - halfSize, 0, k, halfSize, 0, k );\n\t\t\tvertices.push( k, 0, - halfSize, k, 0, halfSize );\n\n\t\t\tvar color = i === center ? color1 : color2;\n\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\n\t\t}\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tGridHelper.prototype = Object.create( LineSegments.prototype );\n\tGridHelper.prototype.constructor = GridHelper;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / http://github.com/Mugen87\n\t * @author Hectate / http://www.github.com/Hectate\n\t */\n\n\tfunction PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {\n\n\t\tradius = radius || 10;\n\t\tradials = radials || 16;\n\t\tcircles = circles || 8;\n\t\tdivisions = divisions || 64;\n\t\tcolor1 = new Color( color1 !== undefined ? color1 : 0x444444 );\n\t\tcolor2 = new Color( color2 !== undefined ? color2 : 0x888888 );\n\n\t\tvar vertices = [];\n\t\tvar colors = [];\n\n\t\tvar x, z;\n\t\tvar v, i, j, r, color;\n\n\t\t// create the radials\n\n\t\tfor ( i = 0; i <= radials; i ++ ) {\n\n\t\t\tv = ( i / radials ) * ( Math.PI * 2 );\n\n\t\t\tx = Math.sin( v ) * radius;\n\t\t\tz = Math.cos( v ) * radius;\n\n\t\t\tvertices.push( 0, 0, 0 );\n\t\t\tvertices.push( x, 0, z );\n\n\t\t\tcolor = ( i & 1 ) ? color1 : color2;\n\n\t\t\tcolors.push( color.r, color.g, color.b );\n\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t}\n\n\t\t// create the circles\n\n\t\tfor ( i = 0; i <= circles; i ++ ) {\n\n\t\t\tcolor = ( i & 1 ) ? color1 : color2;\n\n\t\t\tr = radius - ( radius / circles * i );\n\n\t\t\tfor ( j = 0; j < divisions; j ++ ) {\n\n\t\t\t\t// first vertex\n\n\t\t\t\tv = ( j / divisions ) * ( Math.PI * 2 );\n\n\t\t\t\tx = Math.sin( v ) * r;\n\t\t\t\tz = Math.cos( v ) * r;\n\n\t\t\t\tvertices.push( x, 0, z );\n\t\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t\t\t// second vertex\n\n\t\t\t\tv = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );\n\n\t\t\t\tx = Math.sin( v ) * r;\n\t\t\t\tz = Math.cos( v ) * r;\n\n\t\t\t\tvertices.push( x, 0, z );\n\t\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tPolarGridHelper.prototype = Object.create( LineSegments.prototype );\n\tPolarGridHelper.prototype.constructor = PolarGridHelper;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction FaceNormalsHelper( object, size, hex, linewidth ) {\n\n\t\t// FaceNormalsHelper only supports THREE.Geometry\n\n\t\tthis.object = object;\n\n\t\tthis.size = ( size !== undefined ) ? size : 1;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xffff00;\n\n\t\tvar width = ( linewidth !== undefined ) ? linewidth : 1;\n\n\t\t//\n\n\t\tvar nNormals = 0;\n\n\t\tvar objGeometry = this.object.geometry;\n\n\t\tif ( objGeometry && objGeometry.isGeometry ) {\n\n\t\t\tnNormals = objGeometry.faces.length;\n\n\t\t} else {\n\n\t\t\tconsole.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );\n\n\t\t}\n\n\t\t//\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );\n\n\t\tgeometry.addAttribute( 'position', positions );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );\n\n\t\t//\n\n\t\tthis.matrixAutoUpdate = false;\n\t\tthis.update();\n\n\t}\n\n\tFaceNormalsHelper.prototype = Object.create( LineSegments.prototype );\n\tFaceNormalsHelper.prototype.constructor = FaceNormalsHelper;\n\n\tFaceNormalsHelper.prototype.update = ( function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar normalMatrix = new Matrix3();\n\n\t\treturn function update() {\n\n\t\t\tthis.object.updateMatrixWorld( true );\n\n\t\t\tnormalMatrix.getNormalMatrix( this.object.matrixWorld );\n\n\t\t\tvar matrixWorld = this.object.matrixWorld;\n\n\t\t\tvar position = this.geometry.attributes.position;\n\n\t\t\t//\n\n\t\t\tvar objGeometry = this.object.geometry;\n\n\t\t\tvar vertices = objGeometry.vertices;\n\n\t\t\tvar faces = objGeometry.faces;\n\n\t\t\tvar idx = 0;\n\n\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tvar normal = face.normal;\n\n\t\t\t\tv1.copy( vertices[ face.a ] )\n\t\t\t\t\t.add( vertices[ face.b ] )\n\t\t\t\t\t.add( vertices[ face.c ] )\n\t\t\t\t\t.divideScalar( 3 )\n\t\t\t\t\t.applyMatrix4( matrixWorld );\n\n\t\t\t\tv2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\tidx = idx + 1;\n\n\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\tidx = idx + 1;\n\n\t\t\t}\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t};\n\n\t}() );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction DirectionalLightHelper( light, size, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tif ( size === undefined ) size = 1;\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( [\n\t\t\t- size, size, 0,\n\t\t\tsize, size, 0,\n\t\t\tsize, - size, 0,\n\t\t\t- size, - size, 0,\n\t\t\t- size, size, 0\n\t\t], 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tthis.lightPlane = new Line( geometry, material );\n\t\tthis.add( this.lightPlane );\n\n\t\tgeometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );\n\n\t\tthis.targetLine = new Line( geometry, material );\n\t\tthis.add( this.targetLine );\n\n\t\tthis.update();\n\n\t}\n\n\tDirectionalLightHelper.prototype = Object.create( Object3D.prototype );\n\tDirectionalLightHelper.prototype.constructor = DirectionalLightHelper;\n\n\tDirectionalLightHelper.prototype.dispose = function () {\n\n\t\tthis.lightPlane.geometry.dispose();\n\t\tthis.lightPlane.material.dispose();\n\t\tthis.targetLine.geometry.dispose();\n\t\tthis.targetLine.material.dispose();\n\n\t};\n\n\tDirectionalLightHelper.prototype.update = function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar v3 = new Vector3();\n\n\t\treturn function update() {\n\n\t\t\tv1.setFromMatrixPosition( this.light.matrixWorld );\n\t\t\tv2.setFromMatrixPosition( this.light.target.matrixWorld );\n\t\t\tv3.subVectors( v2, v1 );\n\n\t\t\tthis.lightPlane.lookAt( v3 );\n\n\t\t\tif ( this.color !== undefined ) {\n\n\t\t\t\tthis.lightPlane.material.color.set( this.color );\n\t\t\t\tthis.targetLine.material.color.set( this.color );\n\n\t\t\t} else {\n\n\t\t\t\tthis.lightPlane.material.color.copy( this.light.color );\n\t\t\t\tthis.targetLine.material.color.copy( this.light.color );\n\n\t\t\t}\n\n\t\t\tthis.targetLine.lookAt( v3 );\n\t\t\tthis.targetLine.scale.z = v3.length();\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t *\t- shows frustum, line of sight and up of the camera\n\t *\t- suitable for fast updates\n\t * \t- based on frustum visualization in lightgl.js shadowmap example\n\t *\t\thttp://evanw.github.com/lightgl.js/tests/shadowmap.html\n\t */\n\n\tfunction CameraHelper( camera ) {\n\n\t\tvar geometry = new BufferGeometry();\n\t\tvar material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );\n\n\t\tvar vertices = [];\n\t\tvar colors = [];\n\n\t\tvar pointMap = {};\n\n\t\t// colors\n\n\t\tvar colorFrustum = new Color( 0xffaa00 );\n\t\tvar colorCone = new Color( 0xff0000 );\n\t\tvar colorUp = new Color( 0x00aaff );\n\t\tvar colorTarget = new Color( 0xffffff );\n\t\tvar colorCross = new Color( 0x333333 );\n\n\t\t// near\n\n\t\taddLine( 'n1', 'n2', colorFrustum );\n\t\taddLine( 'n2', 'n4', colorFrustum );\n\t\taddLine( 'n4', 'n3', colorFrustum );\n\t\taddLine( 'n3', 'n1', colorFrustum );\n\n\t\t// far\n\n\t\taddLine( 'f1', 'f2', colorFrustum );\n\t\taddLine( 'f2', 'f4', colorFrustum );\n\t\taddLine( 'f4', 'f3', colorFrustum );\n\t\taddLine( 'f3', 'f1', colorFrustum );\n\n\t\t// sides\n\n\t\taddLine( 'n1', 'f1', colorFrustum );\n\t\taddLine( 'n2', 'f2', colorFrustum );\n\t\taddLine( 'n3', 'f3', colorFrustum );\n\t\taddLine( 'n4', 'f4', colorFrustum );\n\n\t\t// cone\n\n\t\taddLine( 'p', 'n1', colorCone );\n\t\taddLine( 'p', 'n2', colorCone );\n\t\taddLine( 'p', 'n3', colorCone );\n\t\taddLine( 'p', 'n4', colorCone );\n\n\t\t// up\n\n\t\taddLine( 'u1', 'u2', colorUp );\n\t\taddLine( 'u2', 'u3', colorUp );\n\t\taddLine( 'u3', 'u1', colorUp );\n\n\t\t// target\n\n\t\taddLine( 'c', 't', colorTarget );\n\t\taddLine( 'p', 'c', colorCross );\n\n\t\t// cross\n\n\t\taddLine( 'cn1', 'cn2', colorCross );\n\t\taddLine( 'cn3', 'cn4', colorCross );\n\n\t\taddLine( 'cf1', 'cf2', colorCross );\n\t\taddLine( 'cf3', 'cf4', colorCross );\n\n\t\tfunction addLine( a, b, color ) {\n\n\t\t\taddPoint( a, color );\n\t\t\taddPoint( b, color );\n\n\t\t}\n\n\t\tfunction addPoint( id, color ) {\n\n\t\t\tvertices.push( 0, 0, 0 );\n\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t\tif ( pointMap[ id ] === undefined ) {\n\n\t\t\t\tpointMap[ id ] = [];\n\n\t\t\t}\n\n\t\t\tpointMap[ id ].push( ( vertices.length / 3 ) - 1 );\n\n\t\t}\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t\tthis.camera = camera;\n\t\tif ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();\n\n\t\tthis.matrix = camera.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.pointMap = pointMap;\n\n\t\tthis.update();\n\n\t}\n\n\tCameraHelper.prototype = Object.create( LineSegments.prototype );\n\tCameraHelper.prototype.constructor = CameraHelper;\n\n\tCameraHelper.prototype.update = function () {\n\n\t\tvar geometry, pointMap;\n\n\t\tvar vector = new Vector3();\n\t\tvar camera = new Camera();\n\n\t\tfunction setPoint( point, x, y, z ) {\n\n\t\t\tvector.set( x, y, z ).unproject( camera );\n\n\t\t\tvar points = pointMap[ point ];\n\n\t\t\tif ( points !== undefined ) {\n\n\t\t\t\tvar position = geometry.getAttribute( 'position' );\n\n\t\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\t\tposition.setXYZ( points[ i ], vector.x, vector.y, vector.z );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn function update() {\n\n\t\t\tgeometry = this.geometry;\n\t\t\tpointMap = this.pointMap;\n\n\t\t\tvar w = 1, h = 1;\n\n\t\t\t// we need just camera projection matrix\n\t\t\t// world matrix must be identity\n\n\t\t\tcamera.projectionMatrix.copy( this.camera.projectionMatrix );\n\n\t\t\t// center / target\n\n\t\t\tsetPoint( 'c', 0, 0, - 1 );\n\t\t\tsetPoint( 't', 0, 0, 1 );\n\n\t\t\t// near\n\n\t\t\tsetPoint( 'n1', - w, - h, - 1 );\n\t\t\tsetPoint( 'n2', w, - h, - 1 );\n\t\t\tsetPoint( 'n3', - w, h, - 1 );\n\t\t\tsetPoint( 'n4', w, h, - 1 );\n\n\t\t\t// far\n\n\t\t\tsetPoint( 'f1', - w, - h, 1 );\n\t\t\tsetPoint( 'f2', w, - h, 1 );\n\t\t\tsetPoint( 'f3', - w, h, 1 );\n\t\t\tsetPoint( 'f4', w, h, 1 );\n\n\t\t\t// up\n\n\t\t\tsetPoint( 'u1', w * 0.7, h * 1.1, - 1 );\n\t\t\tsetPoint( 'u2', - w * 0.7, h * 1.1, - 1 );\n\t\t\tsetPoint( 'u3', 0, h * 2, - 1 );\n\n\t\t\t// cross\n\n\t\t\tsetPoint( 'cf1', - w, 0, 1 );\n\t\t\tsetPoint( 'cf2', w, 0, 1 );\n\t\t\tsetPoint( 'cf3', 0, - h, 1 );\n\t\t\tsetPoint( 'cf4', 0, h, 1 );\n\n\t\t\tsetPoint( 'cn1', - w, 0, - 1 );\n\t\t\tsetPoint( 'cn2', w, 0, - 1 );\n\t\t\tsetPoint( 'cn3', 0, - h, - 1 );\n\t\t\tsetPoint( 'cn4', 0, h, - 1 );\n\n\t\t\tgeometry.getAttribute( 'position' ).needsUpdate = true;\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / http://github.com/Mugen87\n\t */\n\n\tfunction BoxHelper( object, color ) {\n\n\t\tthis.object = object;\n\n\t\tif ( color === undefined ) color = 0xffff00;\n\n\t\tvar indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );\n\t\tvar positions = new Float32Array( 8 * 3 );\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.setIndex( new BufferAttribute( indices, 1 ) );\n\t\tgeometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );\n\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\t}\n\n\tBoxHelper.prototype = Object.create( LineSegments.prototype );\n\tBoxHelper.prototype.constructor = BoxHelper;\n\n\tBoxHelper.prototype.update = ( function () {\n\n\t\tvar box = new Box3();\n\n\t\treturn function update( object ) {\n\n\t\t\tif ( object !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );\n\n\t\t\t}\n\n\t\t\tif ( this.object !== undefined ) {\n\n\t\t\t\tbox.setFromObject( this.object );\n\n\t\t\t}\n\n\t\t\tif ( box.isEmpty() ) return;\n\n\t\t\tvar min = box.min;\n\t\t\tvar max = box.max;\n\n\t\t\t/*\n\t\t\t 5____4\n\t\t\t1/___0/|\n\t\t\t| 6__|_7\n\t\t\t2/___3/\n\n\t\t\t0: max.x, max.y, max.z\n\t\t\t1: min.x, max.y, max.z\n\t\t\t2: min.x, min.y, max.z\n\t\t\t3: max.x, min.y, max.z\n\t\t\t4: max.x, max.y, min.z\n\t\t\t5: min.x, max.y, min.z\n\t\t\t6: min.x, min.y, min.z\n\t\t\t7: max.x, min.y, min.z\n\t\t\t*/\n\n\t\t\tvar position = this.geometry.attributes.position;\n\t\t\tvar array = position.array;\n\n\t\t\tarray[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;\n\t\t\tarray[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;\n\t\t\tarray[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;\n\t\t\tarray[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;\n\t\t\tarray[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;\n\t\t\tarray[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;\n\t\t\tarray[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;\n\t\t\tarray[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t\tthis.geometry.computeBoundingSphere();\n\n\t\t};\n\n\t} )();\n\n\tBoxHelper.prototype.setFromObject = function ( object ) {\n\n\t\tthis.object = object;\n\t\tthis.update();\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Box3Helper( box, hex ) {\n\n\t\tthis.type = 'Box3Helper';\n\n\t\tthis.box = box;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xffff00;\n\n\t\tvar indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );\n\n\t\tvar positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tgeometry.setIndex( new BufferAttribute( indices, 1 ) );\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );\n\n\t\tthis.geometry.computeBoundingSphere();\n\n\t}\n\n\tBox3Helper.prototype = Object.create( LineSegments.prototype );\n\tBox3Helper.prototype.constructor = Box3Helper;\n\n\tBox3Helper.prototype.updateMatrixWorld = function ( force ) {\n\n\t\tvar box = this.box;\n\n\t\tif ( box.isEmpty() ) return;\n\n\t\tbox.getCenter( this.position );\n\n\t\tbox.getSize( this.scale );\n\n\t\tthis.scale.multiplyScalar( 0.5 );\n\n\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction PlaneHelper( plane, size, hex ) {\n\n\t\tthis.type = 'PlaneHelper';\n\n\t\tthis.plane = plane;\n\n\t\tthis.size = ( size === undefined ) ? 1 : size;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xffff00;\n\n\t\tvar positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );\n\t\tgeometry.computeBoundingSphere();\n\n\t\tLine.call( this, geometry, new LineBasicMaterial( { color: color } ) );\n\n\t\t//\n\n\t\tvar positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];\n\n\t\tvar geometry2 = new BufferGeometry();\n\t\tgeometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );\n\t\tgeometry2.computeBoundingSphere();\n\n\t\tthis.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false } ) ) );\n\n\t}\n\n\tPlaneHelper.prototype = Object.create( Line.prototype );\n\tPlaneHelper.prototype.constructor = PlaneHelper;\n\n\tPlaneHelper.prototype.updateMatrixWorld = function ( force ) {\n\n\t\tvar scale = - this.plane.constant;\n\n\t\tif ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter\n\n\t\tthis.scale.set( 0.5 * this.size, 0.5 * this.size, scale );\n\n\t\tthis.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here\n\n\t\tthis.lookAt( this.plane.normal );\n\n\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author zz85 / http://github.com/zz85\n\t * @author bhouston / http://clara.io\n\t *\n\t * Creates an arrow for visualizing directions\n\t *\n\t * Parameters:\n\t * dir - Vector3\n\t * origin - Vector3\n\t * length - Number\n\t * color - color in hex value\n\t * headLength - Number\n\t * headWidth - Number\n\t */\n\n\tvar lineGeometry, coneGeometry;\n\n\tfunction ArrowHelper( dir, origin, length, color, headLength, headWidth ) {\n\n\t\t// dir is assumed to be normalized\n\n\t\tObject3D.call( this );\n\n\t\tif ( color === undefined ) color = 0xffff00;\n\t\tif ( length === undefined ) length = 1;\n\t\tif ( headLength === undefined ) headLength = 0.2 * length;\n\t\tif ( headWidth === undefined ) headWidth = 0.2 * headLength;\n\n\t\tif ( lineGeometry === undefined ) {\n\n\t\t\tlineGeometry = new BufferGeometry();\n\t\t\tlineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );\n\n\t\t\tconeGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );\n\t\t\tconeGeometry.translate( 0, - 0.5, 0 );\n\n\t\t}\n\n\t\tthis.position.copy( origin );\n\n\t\tthis.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );\n\t\tthis.line.matrixAutoUpdate = false;\n\t\tthis.add( this.line );\n\n\t\tthis.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );\n\t\tthis.cone.matrixAutoUpdate = false;\n\t\tthis.add( this.cone );\n\n\t\tthis.setDirection( dir );\n\t\tthis.setLength( length, headLength, headWidth );\n\n\t}\n\n\tArrowHelper.prototype = Object.create( Object3D.prototype );\n\tArrowHelper.prototype.constructor = ArrowHelper;\n\n\tArrowHelper.prototype.setDirection = ( function () {\n\n\t\tvar axis = new Vector3();\n\t\tvar radians;\n\n\t\treturn function setDirection( dir ) {\n\n\t\t\t// dir is assumed to be normalized\n\n\t\t\tif ( dir.y > 0.99999 ) {\n\n\t\t\t\tthis.quaternion.set( 0, 0, 0, 1 );\n\n\t\t\t} else if ( dir.y < - 0.99999 ) {\n\n\t\t\t\tthis.quaternion.set( 1, 0, 0, 0 );\n\n\t\t\t} else {\n\n\t\t\t\taxis.set( dir.z, 0, - dir.x ).normalize();\n\n\t\t\t\tradians = Math.acos( dir.y );\n\n\t\t\t\tthis.quaternion.setFromAxisAngle( axis, radians );\n\n\t\t\t}\n\n\t\t};\n\n\t}() );\n\n\tArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {\n\n\t\tif ( headLength === undefined ) headLength = 0.2 * length;\n\t\tif ( headWidth === undefined ) headWidth = 0.2 * headLength;\n\n\t\tthis.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );\n\t\tthis.line.updateMatrix();\n\n\t\tthis.cone.scale.set( headWidth, headLength, headWidth );\n\t\tthis.cone.position.y = length;\n\t\tthis.cone.updateMatrix();\n\n\t};\n\n\tArrowHelper.prototype.setColor = function ( color ) {\n\n\t\tthis.line.material.color.copy( color );\n\t\tthis.cone.material.color.copy( color );\n\n\t};\n\n\t/**\n\t * @author sroucheray / http://sroucheray.org/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AxesHelper( size ) {\n\n\t\tsize = size || 1;\n\n\t\tvar vertices = [\n\t\t\t0, 0, 0,\tsize, 0, 0,\n\t\t\t0, 0, 0,\t0, size, 0,\n\t\t\t0, 0, 0,\t0, 0, size\n\t\t];\n\n\t\tvar colors = [\n\t\t\t1, 0, 0,\t1, 0.6, 0,\n\t\t\t0, 1, 0,\t0.6, 1, 0,\n\t\t\t0, 0, 1,\t0, 0.6, 1\n\t\t];\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tAxesHelper.prototype = Object.create( LineSegments.prototype );\n\tAxesHelper.prototype.constructor = AxesHelper;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Face4( a, b, c, d, normal, color, materialIndex ) {\n\n\t\tconsole.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );\n\t\treturn new Face3( a, b, c, normal, color, materialIndex );\n\n\t}\n\n\tvar LineStrip = 0;\n\n\tvar LinePieces = 1;\n\n\tfunction MeshFaceMaterial( materials ) {\n\n\t\tconsole.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );\n\t\treturn materials;\n\n\t}\n\n\tfunction MultiMaterial( materials ) {\n\n\t\tif ( materials === undefined ) materials = [];\n\n\t\tconsole.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );\n\t\tmaterials.isMultiMaterial = true;\n\t\tmaterials.materials = materials;\n\t\tmaterials.clone = function () {\n\n\t\t\treturn materials.slice();\n\n\t\t};\n\t\treturn materials;\n\n\t}\n\n\tfunction PointCloud( geometry, material ) {\n\n\t\tconsole.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );\n\t\treturn new Points( geometry, material );\n\n\t}\n\n\tfunction Particle( material ) {\n\n\t\tconsole.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );\n\t\treturn new Sprite( material );\n\n\t}\n\n\tfunction ParticleSystem( geometry, material ) {\n\n\t\tconsole.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );\n\t\treturn new Points( geometry, material );\n\n\t}\n\n\tfunction PointCloudMaterial( parameters ) {\n\n\t\tconsole.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\n\t}\n\n\tfunction ParticleBasicMaterial( parameters ) {\n\n\t\tconsole.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\n\t}\n\n\tfunction ParticleSystemMaterial( parameters ) {\n\n\t\tconsole.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\n\t}\n\n\tfunction Vertex( x, y, z ) {\n\n\t\tconsole.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );\n\t\treturn new Vector3( x, y, z );\n\n\t}\n\n\t//\n\n\tfunction DynamicBufferAttribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );\n\t\treturn new BufferAttribute( array, itemSize ).setDynamic( true );\n\n\t}\n\n\tfunction Int8Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );\n\t\treturn new Int8BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint8Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );\n\t\treturn new Uint8BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint8ClampedAttribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );\n\t\treturn new Uint8ClampedBufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Int16Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );\n\t\treturn new Int16BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint16Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );\n\t\treturn new Uint16BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Int32Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );\n\t\treturn new Int32BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint32Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );\n\t\treturn new Uint32BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Float32Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );\n\t\treturn new Float32BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Float64Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );\n\t\treturn new Float64BufferAttribute( array, itemSize );\n\n\t}\n\n\t//\n\n\tCurve.create = function ( construct, getPoint ) {\n\n\t\tconsole.log( 'THREE.Curve.create() has been deprecated' );\n\n\t\tconstruct.prototype = Object.create( Curve.prototype );\n\t\tconstruct.prototype.constructor = construct;\n\t\tconstruct.prototype.getPoint = getPoint;\n\n\t\treturn construct;\n\n\t};\n\n\t//\n\n\tObject.assign( CurvePath.prototype, {\n\n\t\tcreatePointsGeometry: function ( divisions ) {\n\n\t\t\tconsole.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );\n\n\t\t\t// generate geometry from path points (for Line or Points objects)\n\n\t\t\tvar pts = this.getPoints( divisions );\n\t\t\treturn this.createGeometry( pts );\n\n\t\t},\n\n\t\tcreateSpacedPointsGeometry: function ( divisions ) {\n\n\t\t\tconsole.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );\n\n\t\t\t// generate geometry from equidistant sampling along the path\n\n\t\t\tvar pts = this.getSpacedPoints( divisions );\n\t\t\treturn this.createGeometry( pts );\n\n\t\t},\n\n\t\tcreateGeometry: function ( points ) {\n\n\t\t\tconsole.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );\n\n\t\t\tvar geometry = new Geometry();\n\n\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tvar point = points[ i ];\n\t\t\t\tgeometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );\n\n\t\t\t}\n\n\t\t\treturn geometry;\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( Path.prototype, {\n\n\t\tfromPoints: function ( points ) {\n\n\t\t\tconsole.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );\n\t\t\tthis.setFromPoints( points );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tfunction ClosedSplineCurve3( points ) {\n\n\t\tconsole.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );\n\n\t\tCatmullRomCurve3.call( this, points );\n\t\tthis.type = 'catmullrom';\n\t\tthis.closed = true;\n\n\t}\n\n\tClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );\n\n\t//\n\n\tfunction SplineCurve3( points ) {\n\n\t\tconsole.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );\n\n\t\tCatmullRomCurve3.call( this, points );\n\t\tthis.type = 'catmullrom';\n\n\t}\n\n\tSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );\n\n\t//\n\n\tfunction Spline( points ) {\n\n\t\tconsole.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );\n\n\t\tCatmullRomCurve3.call( this, points );\n\t\tthis.type = 'catmullrom';\n\n\t}\n\n\tSpline.prototype = Object.create( CatmullRomCurve3.prototype );\n\n\tObject.assign( Spline.prototype, {\n\n\t\tinitFromArray: function ( /* a */ ) {\n\n\t\t\tconsole.error( 'THREE.Spline: .initFromArray() has been removed.' );\n\n\t\t},\n\t\tgetControlPointsArray: function ( /* optionalTarget */ ) {\n\n\t\t\tconsole.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );\n\n\t\t},\n\t\treparametrizeByArcLength: function ( /* samplingCoef */ ) {\n\n\t\t\tconsole.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tfunction AxisHelper( size ) {\n\n\t\tconsole.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );\n\t\treturn new AxesHelper( size );\n\n\t}\n\n\tfunction BoundingBoxHelper( object, color ) {\n\n\t\tconsole.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );\n\t\treturn new BoxHelper( object, color );\n\n\t}\n\n\tfunction EdgesHelper( object, hex ) {\n\n\t\tconsole.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );\n\t\treturn new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );\n\n\t}\n\n\tGridHelper.prototype.setColors = function () {\n\n\t\tconsole.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );\n\n\t};\n\n\tSkeletonHelper.prototype.update = function () {\n\n\t\tconsole.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );\n\n\t};\n\n\tfunction WireframeHelper( object, hex ) {\n\n\t\tconsole.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );\n\t\treturn new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );\n\n\t}\n\n\t//\n\n\tObject.assign( Loader.prototype, {\n\n\t\textractUrlBase: function ( url ) {\n\n\t\t\tconsole.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' );\n\t\t\treturn LoaderUtils.extractUrlBase( url );\n\n\t\t}\n\n\t} );\n\n\tfunction XHRLoader( manager ) {\n\n\t\tconsole.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );\n\t\treturn new FileLoader( manager );\n\n\t}\n\n\tfunction BinaryTextureLoader( manager ) {\n\n\t\tconsole.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );\n\t\treturn new DataTextureLoader( manager );\n\n\t}\n\n\t//\n\n\tObject.assign( Box2.prototype, {\n\n\t\tcenter: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );\n\t\t\treturn this.getCenter( optionalTarget );\n\n\t\t},\n\t\tempty: function () {\n\n\t\t\tconsole.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );\n\t\t\treturn this.isEmpty();\n\n\t\t},\n\t\tisIntersectionBox: function ( box ) {\n\n\t\t\tconsole.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\n\t\t},\n\t\tsize: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );\n\t\t\treturn this.getSize( optionalTarget );\n\n\t\t}\n\t} );\n\n\tObject.assign( Box3.prototype, {\n\n\t\tcenter: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );\n\t\t\treturn this.getCenter( optionalTarget );\n\n\t\t},\n\t\tempty: function () {\n\n\t\t\tconsole.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );\n\t\t\treturn this.isEmpty();\n\n\t\t},\n\t\tisIntersectionBox: function ( box ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\n\t\t},\n\t\tisIntersectionSphere: function ( sphere ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );\n\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t},\n\t\tsize: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );\n\t\t\treturn this.getSize( optionalTarget );\n\n\t\t}\n\t} );\n\n\tLine3.prototype.center = function ( optionalTarget ) {\n\n\t\tconsole.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );\n\t\treturn this.getCenter( optionalTarget );\n\n\t};\n\n\tObject.assign( _Math, {\n\n\t\trandom16: function () {\n\n\t\t\tconsole.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' );\n\t\t\treturn Math.random();\n\n\t\t},\n\n\t\tnearestPowerOfTwo: function ( value ) {\n\n\t\t\tconsole.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' );\n\t\t\treturn _Math.floorPowerOfTwo( value );\n\n\t\t},\n\n\t\tnextPowerOfTwo: function ( value ) {\n\n\t\t\tconsole.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' );\n\t\t\treturn _Math.ceilPowerOfTwo( value );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Matrix3.prototype, {\n\n\t\tflattenToArrayOffset: function ( array, offset ) {\n\n\t\t\tconsole.warn( \"THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.\" );\n\t\t\treturn this.toArray( array, offset );\n\n\t\t},\n\t\tmultiplyVector3: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix3( this );\n\n\t\t},\n\t\tmultiplyVector3Array: function ( /* a */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );\n\n\t\t},\n\t\tapplyToBuffer: function ( buffer /*, offset, length */ ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );\n\t\t\treturn this.applyToBufferAttribute( buffer );\n\n\t\t},\n\t\tapplyToVector3Array: function ( /* array, offset, length */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Matrix4.prototype, {\n\n\t\textractPosition: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );\n\t\t\treturn this.copyPosition( m );\n\n\t\t},\n\t\tflattenToArrayOffset: function ( array, offset ) {\n\n\t\t\tconsole.warn( \"THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.\" );\n\t\t\treturn this.toArray( array, offset );\n\n\t\t},\n\t\tgetPosition: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function getPosition() {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );\n\t\t\t\treturn v1.setFromMatrixColumn( this, 3 );\n\n\t\t\t};\n\n\t\t}(),\n\t\tsetRotationFromQuaternion: function ( q ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );\n\t\t\treturn this.makeRotationFromQuaternion( q );\n\n\t\t},\n\t\tmultiplyToArray: function () {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );\n\n\t\t},\n\t\tmultiplyVector3: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\n\t\t},\n\t\tmultiplyVector4: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\n\t\t},\n\t\tmultiplyVector3Array: function ( /* a */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );\n\n\t\t},\n\t\trotateAxis: function ( v ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );\n\t\t\tv.transformDirection( this );\n\n\t\t},\n\t\tcrossVector: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\n\t\t},\n\t\ttranslate: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .translate() has been removed.' );\n\n\t\t},\n\t\trotateX: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateX() has been removed.' );\n\n\t\t},\n\t\trotateY: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateY() has been removed.' );\n\n\t\t},\n\t\trotateZ: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateZ() has been removed.' );\n\n\t\t},\n\t\trotateByAxis: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );\n\n\t\t},\n\t\tapplyToBuffer: function ( buffer /*, offset, length */ ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );\n\t\t\treturn this.applyToBufferAttribute( buffer );\n\n\t\t},\n\t\tapplyToVector3Array: function ( /* array, offset, length */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );\n\n\t\t},\n\t\tmakeFrustum: function ( left, right, bottom, top, near, far ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );\n\t\t\treturn this.makePerspective( left, right, top, bottom, near, far );\n\n\t\t}\n\n\t} );\n\n\tPlane.prototype.isIntersectionLine = function ( line ) {\n\n\t\tconsole.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );\n\t\treturn this.intersectsLine( line );\n\n\t};\n\n\tQuaternion.prototype.multiplyVector3 = function ( vector ) {\n\n\t\tconsole.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );\n\t\treturn vector.applyQuaternion( this );\n\n\t};\n\n\tObject.assign( Ray.prototype, {\n\n\t\tisIntersectionBox: function ( box ) {\n\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\n\t\t},\n\t\tisIntersectionPlane: function ( plane ) {\n\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );\n\t\t\treturn this.intersectsPlane( plane );\n\n\t\t},\n\t\tisIntersectionSphere: function ( sphere ) {\n\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );\n\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Triangle.prototype, {\n\n\t\tarea: function () {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' );\n\t\t\treturn this.getArea();\n\n\t\t},\n\t\tbarycoordFromPoint: function ( point, target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );\n\t\t\treturn this.getBarycoord( point, target );\n\n\t\t},\n\t\tmidpoint: function ( target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' );\n\t\t\treturn this.getMidpoint( target );\n\n\t\t},\n\t\tnormal: function ( target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );\n\t\t\treturn this.getNormal( target );\n\n\t\t},\n\t\tplane: function ( target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' );\n\t\t\treturn this.getPlane( target );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Triangle, {\n\n\t\tbarycoordFromPoint: function ( point, a, b, c, target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );\n\t\t\treturn Triangle.getBarycoord( point, a, b, c, target );\n\n\t\t},\n\t\tnormal: function ( a, b, c, target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );\n\t\t\treturn Triangle.getNormal( a, b, c, target );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Shape.prototype, {\n\n\t\textractAllPoints: function ( divisions ) {\n\n\t\t\tconsole.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );\n\t\t\treturn this.extractPoints( divisions );\n\n\t\t},\n\t\textrude: function ( options ) {\n\n\t\t\tconsole.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );\n\t\t\treturn new ExtrudeGeometry( this, options );\n\n\t\t},\n\t\tmakeGeometry: function ( options ) {\n\n\t\t\tconsole.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );\n\t\t\treturn new ShapeGeometry( this, options );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector2.prototype, {\n\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tconsole.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );\n\t\t\treturn this.fromBufferAttribute( attribute, index, offset );\n\n\t\t},\n\t\tdistanceToManhattan: function ( v ) {\n\n\t\t\tconsole.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );\n\t\t\treturn this.manhattanDistanceTo( v );\n\n\t\t},\n\t\tlengthManhattan: function () {\n\n\t\t\tconsole.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );\n\t\t\treturn this.manhattanLength();\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector3.prototype, {\n\n\t\tsetEulerFromRotationMatrix: function () {\n\n\t\t\tconsole.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );\n\n\t\t},\n\t\tsetEulerFromQuaternion: function () {\n\n\t\t\tconsole.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );\n\n\t\t},\n\t\tgetPositionFromMatrix: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );\n\t\t\treturn this.setFromMatrixPosition( m );\n\n\t\t},\n\t\tgetScaleFromMatrix: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );\n\t\t\treturn this.setFromMatrixScale( m );\n\n\t\t},\n\t\tgetColumnFromMatrix: function ( index, matrix ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );\n\t\t\treturn this.setFromMatrixColumn( matrix, index );\n\n\t\t},\n\t\tapplyProjection: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );\n\t\t\treturn this.applyMatrix4( m );\n\n\t\t},\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );\n\t\t\treturn this.fromBufferAttribute( attribute, index, offset );\n\n\t\t},\n\t\tdistanceToManhattan: function ( v ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );\n\t\t\treturn this.manhattanDistanceTo( v );\n\n\t\t},\n\t\tlengthManhattan: function () {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );\n\t\t\treturn this.manhattanLength();\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector4.prototype, {\n\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tconsole.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );\n\t\t\treturn this.fromBufferAttribute( attribute, index, offset );\n\n\t\t},\n\t\tlengthManhattan: function () {\n\n\t\t\tconsole.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );\n\t\t\treturn this.manhattanLength();\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( Geometry.prototype, {\n\n\t\tcomputeTangents: function () {\n\n\t\t\tconsole.error( 'THREE.Geometry: .computeTangents() has been removed.' );\n\n\t\t},\n\t\tcomputeLineDistances: function () {\n\n\t\t\tconsole.error( 'THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.' );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Object3D.prototype, {\n\n\t\tgetChildByName: function ( name ) {\n\n\t\t\tconsole.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );\n\t\t\treturn this.getObjectByName( name );\n\n\t\t},\n\t\trenderDepth: function () {\n\n\t\t\tconsole.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );\n\n\t\t},\n\t\ttranslate: function ( distance, axis ) {\n\n\t\t\tconsole.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );\n\t\t\treturn this.translateOnAxis( axis, distance );\n\n\t\t},\n\t\tgetWorldRotation: function () {\n\n\t\t\tconsole.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( Object3D.prototype, {\n\n\t\teulerOrder: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );\n\t\t\t\treturn this.rotation.order;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );\n\t\t\t\tthis.rotation.order = value;\n\n\t\t\t}\n\t\t},\n\t\tuseQuaternion: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( LOD.prototype, {\n\n\t\tobjects: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.LOD: .objects has been renamed to .levels.' );\n\t\t\t\treturn this.levels;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperty( Skeleton.prototype, 'useVertexTexture', {\n\n\t\tget: function () {\n\n\t\t\tconsole.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );\n\n\t\t},\n\t\tset: function () {\n\n\t\t\tconsole.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperty( Curve.prototype, '__arcLengthDivisions', {\n\n\t\tget: function () {\n\n\t\t\tconsole.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );\n\t\t\treturn this.arcLengthDivisions;\n\n\t\t},\n\t\tset: function ( value ) {\n\n\t\t\tconsole.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );\n\t\t\tthis.arcLengthDivisions = value;\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tPerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {\n\n\t\tconsole.warn( \"THREE.PerspectiveCamera.setLens is deprecated. \" +\n\t\t\t\t\"Use .setFocalLength and .filmGauge for a photographic setup.\" );\n\n\t\tif ( filmGauge !== undefined ) this.filmGauge = filmGauge;\n\t\tthis.setFocalLength( focalLength );\n\n\t};\n\n\t//\n\n\tObject.defineProperties( Light.prototype, {\n\t\tonlyShadow: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .onlyShadow has been removed.' );\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraFov: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );\n\t\t\t\tthis.shadow.camera.fov = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraLeft: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );\n\t\t\t\tthis.shadow.camera.left = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraRight: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );\n\t\t\t\tthis.shadow.camera.right = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraTop: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );\n\t\t\t\tthis.shadow.camera.top = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraBottom: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );\n\t\t\t\tthis.shadow.camera.bottom = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraNear: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );\n\t\t\t\tthis.shadow.camera.near = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraFar: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );\n\t\t\t\tthis.shadow.camera.far = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraVisible: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );\n\n\t\t\t}\n\t\t},\n\t\tshadowBias: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );\n\t\t\t\tthis.shadow.bias = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowDarkness: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowDarkness has been removed.' );\n\n\t\t\t}\n\t\t},\n\t\tshadowMapWidth: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );\n\t\t\t\tthis.shadow.mapSize.width = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowMapHeight: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );\n\t\t\t\tthis.shadow.mapSize.height = value;\n\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tObject.defineProperties( BufferAttribute.prototype, {\n\n\t\tlength: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );\n\t\t\t\treturn this.array.length;\n\n\t\t\t}\n\t\t},\n\t\tcopyIndicesArray: function ( /* indices */ ) {\n\n\t\t\tconsole.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( BufferGeometry.prototype, {\n\n\t\taddIndex: function ( index ) {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );\n\t\t\tthis.setIndex( index );\n\n\t\t},\n\t\taddDrawCall: function ( start, count, indexOffset ) {\n\n\t\t\tif ( indexOffset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );\n\n\t\t\t}\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );\n\t\t\tthis.addGroup( start, count );\n\n\t\t},\n\t\tclearDrawCalls: function () {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );\n\t\t\tthis.clearGroups();\n\n\t\t},\n\t\tcomputeTangents: function () {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );\n\n\t\t},\n\t\tcomputeOffsets: function () {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( BufferGeometry.prototype, {\n\n\t\tdrawcalls: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );\n\t\t\t\treturn this.groups;\n\n\t\t\t}\n\t\t},\n\t\toffsets: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );\n\t\t\t\treturn this.groups;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( ExtrudeBufferGeometry.prototype, {\n\n\t\tgetArrays: function () {\n\n\t\t\tconsole.error( 'THREE.ExtrudeBufferGeometry: .getArrays() has been removed.' );\n\n\t\t},\n\n\t\taddShapeList: function () {\n\n\t\t\tconsole.error( 'THREE.ExtrudeBufferGeometry: .addShapeList() has been removed.' );\n\n\t\t},\n\n\t\taddShape: function () {\n\n\t\t\tconsole.error( 'THREE.ExtrudeBufferGeometry: .addShape() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( Uniform.prototype, {\n\n\t\tdynamic: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );\n\n\t\t\t}\n\t\t},\n\t\tonUpdate: {\n\t\t\tvalue: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );\n\t\t\t\treturn this;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( Material.prototype, {\n\n\t\twrapAround: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Material: .wrapAround has been removed.' );\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Material: .wrapAround has been removed.' );\n\n\t\t\t}\n\t\t},\n\t\twrapRGB: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Material: .wrapRGB has been removed.' );\n\t\t\t\treturn new Color();\n\n\t\t\t}\n\t\t},\n\n\t\tshading: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );\n\t\t\t\tthis.flatShading = ( value === FlatShading );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( MeshPhongMaterial.prototype, {\n\n\t\tmetal: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );\n\t\t\t\treturn false;\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( ShaderMaterial.prototype, {\n\n\t\tderivatives: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );\n\t\t\t\treturn this.extensions.derivatives;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );\n\t\t\t\tthis.extensions.derivatives = value;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( WebGLRenderer.prototype, {\n\n\t\tanimate: function ( callback ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' );\n\t\t\tthis.setAnimationLoop( callback );\n\n\t\t},\n\n\t\tgetCurrentRenderTarget: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );\n\t\t\treturn this.getRenderTarget();\n\n\t\t},\n\n\t\tgetMaxAnisotropy: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );\n\t\t\treturn this.capabilities.getMaxAnisotropy();\n\n\t\t},\n\n\t\tgetPrecision: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );\n\t\t\treturn this.capabilities.precision;\n\n\t\t},\n\n\t\tresetGLState: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );\n\t\t\treturn this.state.reset();\n\n\t\t},\n\n\t\tsupportsFloatTextures: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \\'OES_texture_float\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_texture_float' );\n\n\t\t},\n\t\tsupportsHalfFloatTextures: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \\'OES_texture_half_float\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_texture_half_float' );\n\n\t\t},\n\t\tsupportsStandardDerivatives: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \\'OES_standard_derivatives\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_standard_derivatives' );\n\n\t\t},\n\t\tsupportsCompressedTextureS3TC: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \\'WEBGL_compressed_texture_s3tc\\' ).' );\n\t\t\treturn this.extensions.get( 'WEBGL_compressed_texture_s3tc' );\n\n\t\t},\n\t\tsupportsCompressedTexturePVRTC: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \\'WEBGL_compressed_texture_pvrtc\\' ).' );\n\t\t\treturn this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );\n\n\t\t},\n\t\tsupportsBlendMinMax: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \\'EXT_blend_minmax\\' ).' );\n\t\t\treturn this.extensions.get( 'EXT_blend_minmax' );\n\n\t\t},\n\t\tsupportsVertexTextures: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );\n\t\t\treturn this.capabilities.vertexTextures;\n\n\t\t},\n\t\tsupportsInstancedArrays: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \\'ANGLE_instanced_arrays\\' ).' );\n\t\t\treturn this.extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t},\n\t\tenableScissorTest: function ( boolean ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );\n\t\t\tthis.setScissorTest( boolean );\n\n\t\t},\n\t\tinitMaterial: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );\n\n\t\t},\n\t\taddPrePlugin: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );\n\n\t\t},\n\t\taddPostPlugin: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );\n\n\t\t},\n\t\tupdateShadowMap: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );\n\n\t\t},\n\t\tsetFaceCulling: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( WebGLRenderer.prototype, {\n\n\t\tshadowMapEnabled: {\n\t\t\tget: function () {\n\n\t\t\t\treturn this.shadowMap.enabled;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );\n\t\t\t\tthis.shadowMap.enabled = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowMapType: {\n\t\t\tget: function () {\n\n\t\t\t\treturn this.shadowMap.type;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );\n\t\t\t\tthis.shadowMap.type = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowMapCullFace: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function ( /* value */ ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t}\n\t} );\n\n\tObject.defineProperties( WebGLShadowMap.prototype, {\n\n\t\tcullFace: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function ( /* cullFace */ ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t},\n\t\trenderReverseSided: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t},\n\t\trenderSingleSided: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( WebGLRenderTarget.prototype, {\n\n\t\twrapS: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );\n\t\t\t\treturn this.texture.wrapS;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );\n\t\t\t\tthis.texture.wrapS = value;\n\n\t\t\t}\n\t\t},\n\t\twrapT: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );\n\t\t\t\treturn this.texture.wrapT;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );\n\t\t\t\tthis.texture.wrapT = value;\n\n\t\t\t}\n\t\t},\n\t\tmagFilter: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );\n\t\t\t\treturn this.texture.magFilter;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );\n\t\t\t\tthis.texture.magFilter = value;\n\n\t\t\t}\n\t\t},\n\t\tminFilter: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );\n\t\t\t\treturn this.texture.minFilter;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );\n\t\t\t\tthis.texture.minFilter = value;\n\n\t\t\t}\n\t\t},\n\t\tanisotropy: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );\n\t\t\t\treturn this.texture.anisotropy;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );\n\t\t\t\tthis.texture.anisotropy = value;\n\n\t\t\t}\n\t\t},\n\t\toffset: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );\n\t\t\t\treturn this.texture.offset;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );\n\t\t\t\tthis.texture.offset = value;\n\n\t\t\t}\n\t\t},\n\t\trepeat: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );\n\t\t\t\treturn this.texture.repeat;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );\n\t\t\t\tthis.texture.repeat = value;\n\n\t\t\t}\n\t\t},\n\t\tformat: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );\n\t\t\t\treturn this.texture.format;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );\n\t\t\t\tthis.texture.format = value;\n\n\t\t\t}\n\t\t},\n\t\ttype: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );\n\t\t\t\treturn this.texture.type;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );\n\t\t\t\tthis.texture.type = value;\n\n\t\t\t}\n\t\t},\n\t\tgenerateMipmaps: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );\n\t\t\t\treturn this.texture.generateMipmaps;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );\n\t\t\t\tthis.texture.generateMipmaps = value;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( WebVRManager.prototype, {\n\n\t\tstanding: {\n\t\t\tset: function ( /* value */ ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebVRManager: .standing has been removed.' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tAudio.prototype.load = function ( file ) {\n\n\t\tconsole.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );\n\t\tvar scope = this;\n\t\tvar audioLoader = new AudioLoader();\n\t\taudioLoader.load( file, function ( buffer ) {\n\n\t\t\tscope.setBuffer( buffer );\n\n\t\t} );\n\t\treturn this;\n\n\t};\n\n\tAudioAnalyser.prototype.getData = function () {\n\n\t\tconsole.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );\n\t\treturn this.getFrequencyData();\n\n\t};\n\n\t//\n\n\tCubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {\n\n\t\tconsole.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );\n\t\treturn this.update( renderer, scene );\n\n\t};\n\n\t//\n\n\tvar GeometryUtils = {\n\n\t\tmerge: function ( geometry1, geometry2, materialIndexOffset ) {\n\n\t\t\tconsole.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );\n\t\t\tvar matrix;\n\n\t\t\tif ( geometry2.isMesh ) {\n\n\t\t\t\tgeometry2.matrixAutoUpdate && geometry2.updateMatrix();\n\n\t\t\t\tmatrix = geometry2.matrix;\n\t\t\t\tgeometry2 = geometry2.geometry;\n\n\t\t\t}\n\n\t\t\tgeometry1.merge( geometry2, matrix, materialIndexOffset );\n\n\t\t},\n\n\t\tcenter: function ( geometry ) {\n\n\t\t\tconsole.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );\n\t\t\treturn geometry.center();\n\n\t\t}\n\n\t};\n\n\tImageUtils.crossOrigin = undefined;\n\n\tImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) {\n\n\t\tconsole.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );\n\n\t\tvar loader = new TextureLoader();\n\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\tvar texture = loader.load( url, onLoad, undefined, onError );\n\n\t\tif ( mapping ) texture.mapping = mapping;\n\n\t\treturn texture;\n\n\t};\n\n\tImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) {\n\n\t\tconsole.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );\n\n\t\tvar loader = new CubeTextureLoader();\n\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\tvar texture = loader.load( urls, onLoad, undefined, onError );\n\n\t\tif ( mapping ) texture.mapping = mapping;\n\n\t\treturn texture;\n\n\t};\n\n\tImageUtils.loadCompressedTexture = function () {\n\n\t\tconsole.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );\n\n\t};\n\n\tImageUtils.loadCompressedTextureCube = function () {\n\n\t\tconsole.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );\n\n\t};\n\n\t//\n\n\tfunction Projector() {\n\n\t\tconsole.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );\n\n\t\tthis.projectVector = function ( vector, camera ) {\n\n\t\t\tconsole.warn( 'THREE.Projector: .projectVector() is now vector.project().' );\n\t\t\tvector.project( camera );\n\n\t\t};\n\n\t\tthis.unprojectVector = function ( vector, camera ) {\n\n\t\t\tconsole.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );\n\t\t\tvector.unproject( camera );\n\n\t\t};\n\n\t\tthis.pickingRay = function () {\n\n\t\t\tconsole.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );\n\n\t\t};\n\n\t}\n\n\t//\n\n\tfunction CanvasRenderer() {\n\n\t\tconsole.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );\n\n\t\tthis.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\tthis.clear = function () {};\n\t\tthis.render = function () {};\n\t\tthis.setClearColor = function () {};\n\t\tthis.setSize = function () {};\n\n\t}\n\n\t//\n\n\tvar SceneUtils = {\n\n\t\tcreateMultiMaterialObject: function ( /* geometry, materials */ ) {\n\n\t\t\tconsole.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );\n\n\t\t},\n\n\t\tdetach: function ( /* child, parent, scene */ ) {\n\n\t\t\tconsole.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );\n\n\t\t},\n\n\t\tattach: function ( /* child, scene, parent */ ) {\n\n\t\t\tconsole.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );\n\n\t\t}\n\n\t};\n\n\t//\n\n\tfunction LensFlare() {\n\n\t\tconsole.error( 'THREE.LensFlare has been moved to /examples/js/objects/Lensflare.js' );\n\n\t}\n\n\texports.WebGLRenderTargetCube = WebGLRenderTargetCube;\n\texports.WebGLRenderTarget = WebGLRenderTarget;\n\texports.WebGLRenderer = WebGLRenderer;\n\texports.ShaderLib = ShaderLib;\n\texports.UniformsLib = UniformsLib;\n\texports.UniformsUtils = UniformsUtils;\n\texports.ShaderChunk = ShaderChunk;\n\texports.FogExp2 = FogExp2;\n\texports.Fog = Fog;\n\texports.Scene = Scene;\n\texports.Sprite = Sprite;\n\texports.LOD = LOD;\n\texports.SkinnedMesh = SkinnedMesh;\n\texports.Skeleton = Skeleton;\n\texports.Bone = Bone;\n\texports.Mesh = Mesh;\n\texports.LineSegments = LineSegments;\n\texports.LineLoop = LineLoop;\n\texports.Line = Line;\n\texports.Points = Points;\n\texports.Group = Group;\n\texports.VideoTexture = VideoTexture;\n\texports.DataTexture = DataTexture;\n\texports.CompressedTexture = CompressedTexture;\n\texports.CubeTexture = CubeTexture;\n\texports.CanvasTexture = CanvasTexture;\n\texports.DepthTexture = DepthTexture;\n\texports.Texture = Texture;\n\texports.CompressedTextureLoader = CompressedTextureLoader;\n\texports.DataTextureLoader = DataTextureLoader;\n\texports.CubeTextureLoader = CubeTextureLoader;\n\texports.TextureLoader = TextureLoader;\n\texports.ObjectLoader = ObjectLoader;\n\texports.MaterialLoader = MaterialLoader;\n\texports.BufferGeometryLoader = BufferGeometryLoader;\n\texports.DefaultLoadingManager = DefaultLoadingManager;\n\texports.LoadingManager = LoadingManager;\n\texports.JSONLoader = JSONLoader;\n\texports.ImageLoader = ImageLoader;\n\texports.ImageBitmapLoader = ImageBitmapLoader;\n\texports.FontLoader = FontLoader;\n\texports.FileLoader = FileLoader;\n\texports.Loader = Loader;\n\texports.LoaderUtils = LoaderUtils;\n\texports.Cache = Cache;\n\texports.AudioLoader = AudioLoader;\n\texports.SpotLightShadow = SpotLightShadow;\n\texports.SpotLight = SpotLight;\n\texports.PointLight = PointLight;\n\texports.RectAreaLight = RectAreaLight;\n\texports.HemisphereLight = HemisphereLight;\n\texports.DirectionalLightShadow = DirectionalLightShadow;\n\texports.DirectionalLight = DirectionalLight;\n\texports.AmbientLight = AmbientLight;\n\texports.LightShadow = LightShadow;\n\texports.Light = Light;\n\texports.StereoCamera = StereoCamera;\n\texports.PerspectiveCamera = PerspectiveCamera;\n\texports.OrthographicCamera = OrthographicCamera;\n\texports.CubeCamera = CubeCamera;\n\texports.ArrayCamera = ArrayCamera;\n\texports.Camera = Camera;\n\texports.AudioListener = AudioListener;\n\texports.PositionalAudio = PositionalAudio;\n\texports.AudioContext = AudioContext;\n\texports.AudioAnalyser = AudioAnalyser;\n\texports.Audio = Audio;\n\texports.VectorKeyframeTrack = VectorKeyframeTrack;\n\texports.StringKeyframeTrack = StringKeyframeTrack;\n\texports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;\n\texports.NumberKeyframeTrack = NumberKeyframeTrack;\n\texports.ColorKeyframeTrack = ColorKeyframeTrack;\n\texports.BooleanKeyframeTrack = BooleanKeyframeTrack;\n\texports.PropertyMixer = PropertyMixer;\n\texports.PropertyBinding = PropertyBinding;\n\texports.KeyframeTrack = KeyframeTrack;\n\texports.AnimationUtils = AnimationUtils;\n\texports.AnimationObjectGroup = AnimationObjectGroup;\n\texports.AnimationMixer = AnimationMixer;\n\texports.AnimationClip = AnimationClip;\n\texports.Uniform = Uniform;\n\texports.InstancedBufferGeometry = InstancedBufferGeometry;\n\texports.BufferGeometry = BufferGeometry;\n\texports.Geometry = Geometry;\n\texports.InterleavedBufferAttribute = InterleavedBufferAttribute;\n\texports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;\n\texports.InterleavedBuffer = InterleavedBuffer;\n\texports.InstancedBufferAttribute = InstancedBufferAttribute;\n\texports.Face3 = Face3;\n\texports.Object3D = Object3D;\n\texports.Raycaster = Raycaster;\n\texports.Layers = Layers;\n\texports.EventDispatcher = EventDispatcher;\n\texports.Clock = Clock;\n\texports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;\n\texports.LinearInterpolant = LinearInterpolant;\n\texports.DiscreteInterpolant = DiscreteInterpolant;\n\texports.CubicInterpolant = CubicInterpolant;\n\texports.Interpolant = Interpolant;\n\texports.Triangle = Triangle;\n\texports.Math = _Math;\n\texports.Spherical = Spherical;\n\texports.Cylindrical = Cylindrical;\n\texports.Plane = Plane;\n\texports.Frustum = Frustum;\n\texports.Sphere = Sphere;\n\texports.Ray = Ray;\n\texports.Matrix4 = Matrix4;\n\texports.Matrix3 = Matrix3;\n\texports.Box3 = Box3;\n\texports.Box2 = Box2;\n\texports.Line3 = Line3;\n\texports.Euler = Euler;\n\texports.Vector4 = Vector4;\n\texports.Vector3 = Vector3;\n\texports.Vector2 = Vector2;\n\texports.Quaternion = Quaternion;\n\texports.Color = Color;\n\texports.ImmediateRenderObject = ImmediateRenderObject;\n\texports.VertexNormalsHelper = VertexNormalsHelper;\n\texports.SpotLightHelper = SpotLightHelper;\n\texports.SkeletonHelper = SkeletonHelper;\n\texports.PointLightHelper = PointLightHelper;\n\texports.RectAreaLightHelper = RectAreaLightHelper;\n\texports.HemisphereLightHelper = HemisphereLightHelper;\n\texports.GridHelper = GridHelper;\n\texports.PolarGridHelper = PolarGridHelper;\n\texports.FaceNormalsHelper = FaceNormalsHelper;\n\texports.DirectionalLightHelper = DirectionalLightHelper;\n\texports.CameraHelper = CameraHelper;\n\texports.BoxHelper = BoxHelper;\n\texports.Box3Helper = Box3Helper;\n\texports.PlaneHelper = PlaneHelper;\n\texports.ArrowHelper = ArrowHelper;\n\texports.AxesHelper = AxesHelper;\n\texports.Shape = Shape;\n\texports.Path = Path;\n\texports.ShapePath = ShapePath;\n\texports.Font = Font;\n\texports.CurvePath = CurvePath;\n\texports.Curve = Curve;\n\texports.ImageUtils = ImageUtils;\n\texports.ShapeUtils = ShapeUtils;\n\texports.WebGLUtils = WebGLUtils;\n\texports.WireframeGeometry = WireframeGeometry;\n\texports.ParametricGeometry = ParametricGeometry;\n\texports.ParametricBufferGeometry = ParametricBufferGeometry;\n\texports.TetrahedronGeometry = TetrahedronGeometry;\n\texports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;\n\texports.OctahedronGeometry = OctahedronGeometry;\n\texports.OctahedronBufferGeometry = OctahedronBufferGeometry;\n\texports.IcosahedronGeometry = IcosahedronGeometry;\n\texports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;\n\texports.DodecahedronGeometry = DodecahedronGeometry;\n\texports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;\n\texports.PolyhedronGeometry = PolyhedronGeometry;\n\texports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;\n\texports.TubeGeometry = TubeGeometry;\n\texports.TubeBufferGeometry = TubeBufferGeometry;\n\texports.TorusKnotGeometry = TorusKnotGeometry;\n\texports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;\n\texports.TorusGeometry = TorusGeometry;\n\texports.TorusBufferGeometry = TorusBufferGeometry;\n\texports.TextGeometry = TextGeometry;\n\texports.TextBufferGeometry = TextBufferGeometry;\n\texports.SphereGeometry = SphereGeometry;\n\texports.SphereBufferGeometry = SphereBufferGeometry;\n\texports.RingGeometry = RingGeometry;\n\texports.RingBufferGeometry = RingBufferGeometry;\n\texports.PlaneGeometry = PlaneGeometry;\n\texports.PlaneBufferGeometry = PlaneBufferGeometry;\n\texports.LatheGeometry = LatheGeometry;\n\texports.LatheBufferGeometry = LatheBufferGeometry;\n\texports.ShapeGeometry = ShapeGeometry;\n\texports.ShapeBufferGeometry = ShapeBufferGeometry;\n\texports.ExtrudeGeometry = ExtrudeGeometry;\n\texports.ExtrudeBufferGeometry = ExtrudeBufferGeometry;\n\texports.EdgesGeometry = EdgesGeometry;\n\texports.ConeGeometry = ConeGeometry;\n\texports.ConeBufferGeometry = ConeBufferGeometry;\n\texports.CylinderGeometry = CylinderGeometry;\n\texports.CylinderBufferGeometry = CylinderBufferGeometry;\n\texports.CircleGeometry = CircleGeometry;\n\texports.CircleBufferGeometry = CircleBufferGeometry;\n\texports.BoxGeometry = BoxGeometry;\n\texports.BoxBufferGeometry = BoxBufferGeometry;\n\texports.ShadowMaterial = ShadowMaterial;\n\texports.SpriteMaterial = SpriteMaterial;\n\texports.RawShaderMaterial = RawShaderMaterial;\n\texports.ShaderMaterial = ShaderMaterial;\n\texports.PointsMaterial = PointsMaterial;\n\texports.MeshPhysicalMaterial = MeshPhysicalMaterial;\n\texports.MeshStandardMaterial = MeshStandardMaterial;\n\texports.MeshPhongMaterial = MeshPhongMaterial;\n\texports.MeshToonMaterial = MeshToonMaterial;\n\texports.MeshNormalMaterial = MeshNormalMaterial;\n\texports.MeshLambertMaterial = MeshLambertMaterial;\n\texports.MeshDepthMaterial = MeshDepthMaterial;\n\texports.MeshDistanceMaterial = MeshDistanceMaterial;\n\texports.MeshBasicMaterial = MeshBasicMaterial;\n\texports.LineDashedMaterial = LineDashedMaterial;\n\texports.LineBasicMaterial = LineBasicMaterial;\n\texports.Material = Material;\n\texports.Float64BufferAttribute = Float64BufferAttribute;\n\texports.Float32BufferAttribute = Float32BufferAttribute;\n\texports.Uint32BufferAttribute = Uint32BufferAttribute;\n\texports.Int32BufferAttribute = Int32BufferAttribute;\n\texports.Uint16BufferAttribute = Uint16BufferAttribute;\n\texports.Int16BufferAttribute = Int16BufferAttribute;\n\texports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;\n\texports.Uint8BufferAttribute = Uint8BufferAttribute;\n\texports.Int8BufferAttribute = Int8BufferAttribute;\n\texports.BufferAttribute = BufferAttribute;\n\texports.ArcCurve = ArcCurve;\n\texports.CatmullRomCurve3 = CatmullRomCurve3;\n\texports.CubicBezierCurve = CubicBezierCurve;\n\texports.CubicBezierCurve3 = CubicBezierCurve3;\n\texports.EllipseCurve = EllipseCurve;\n\texports.LineCurve = LineCurve;\n\texports.LineCurve3 = LineCurve3;\n\texports.QuadraticBezierCurve = QuadraticBezierCurve;\n\texports.QuadraticBezierCurve3 = QuadraticBezierCurve3;\n\texports.SplineCurve = SplineCurve;\n\texports.REVISION = REVISION;\n\texports.MOUSE = MOUSE;\n\texports.CullFaceNone = CullFaceNone;\n\texports.CullFaceBack = CullFaceBack;\n\texports.CullFaceFront = CullFaceFront;\n\texports.CullFaceFrontBack = CullFaceFrontBack;\n\texports.FrontFaceDirectionCW = FrontFaceDirectionCW;\n\texports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;\n\texports.BasicShadowMap = BasicShadowMap;\n\texports.PCFShadowMap = PCFShadowMap;\n\texports.PCFSoftShadowMap = PCFSoftShadowMap;\n\texports.FrontSide = FrontSide;\n\texports.BackSide = BackSide;\n\texports.DoubleSide = DoubleSide;\n\texports.FlatShading = FlatShading;\n\texports.SmoothShading = SmoothShading;\n\texports.NoColors = NoColors;\n\texports.FaceColors = FaceColors;\n\texports.VertexColors = VertexColors;\n\texports.NoBlending = NoBlending;\n\texports.NormalBlending = NormalBlending;\n\texports.AdditiveBlending = AdditiveBlending;\n\texports.SubtractiveBlending = SubtractiveBlending;\n\texports.MultiplyBlending = MultiplyBlending;\n\texports.CustomBlending = CustomBlending;\n\texports.AddEquation = AddEquation;\n\texports.SubtractEquation = SubtractEquation;\n\texports.ReverseSubtractEquation = ReverseSubtractEquation;\n\texports.MinEquation = MinEquation;\n\texports.MaxEquation = MaxEquation;\n\texports.ZeroFactor = ZeroFactor;\n\texports.OneFactor = OneFactor;\n\texports.SrcColorFactor = SrcColorFactor;\n\texports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;\n\texports.SrcAlphaFactor = SrcAlphaFactor;\n\texports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;\n\texports.DstAlphaFactor = DstAlphaFactor;\n\texports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;\n\texports.DstColorFactor = DstColorFactor;\n\texports.OneMinusDstColorFactor = OneMinusDstColorFactor;\n\texports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;\n\texports.NeverDepth = NeverDepth;\n\texports.AlwaysDepth = AlwaysDepth;\n\texports.LessDepth = LessDepth;\n\texports.LessEqualDepth = LessEqualDepth;\n\texports.EqualDepth = EqualDepth;\n\texports.GreaterEqualDepth = GreaterEqualDepth;\n\texports.GreaterDepth = GreaterDepth;\n\texports.NotEqualDepth = NotEqualDepth;\n\texports.MultiplyOperation = MultiplyOperation;\n\texports.MixOperation = MixOperation;\n\texports.AddOperation = AddOperation;\n\texports.NoToneMapping = NoToneMapping;\n\texports.LinearToneMapping = LinearToneMapping;\n\texports.ReinhardToneMapping = ReinhardToneMapping;\n\texports.Uncharted2ToneMapping = Uncharted2ToneMapping;\n\texports.CineonToneMapping = CineonToneMapping;\n\texports.UVMapping = UVMapping;\n\texports.CubeReflectionMapping = CubeReflectionMapping;\n\texports.CubeRefractionMapping = CubeRefractionMapping;\n\texports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;\n\texports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;\n\texports.SphericalReflectionMapping = SphericalReflectionMapping;\n\texports.CubeUVReflectionMapping = CubeUVReflectionMapping;\n\texports.CubeUVRefractionMapping = CubeUVRefractionMapping;\n\texports.RepeatWrapping = RepeatWrapping;\n\texports.ClampToEdgeWrapping = ClampToEdgeWrapping;\n\texports.MirroredRepeatWrapping = MirroredRepeatWrapping;\n\texports.NearestFilter = NearestFilter;\n\texports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;\n\texports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;\n\texports.LinearFilter = LinearFilter;\n\texports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;\n\texports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;\n\texports.UnsignedByteType = UnsignedByteType;\n\texports.ByteType = ByteType;\n\texports.ShortType = ShortType;\n\texports.UnsignedShortType = UnsignedShortType;\n\texports.IntType = IntType;\n\texports.UnsignedIntType = UnsignedIntType;\n\texports.FloatType = FloatType;\n\texports.HalfFloatType = HalfFloatType;\n\texports.UnsignedShort4444Type = UnsignedShort4444Type;\n\texports.UnsignedShort5551Type = UnsignedShort5551Type;\n\texports.UnsignedShort565Type = UnsignedShort565Type;\n\texports.UnsignedInt248Type = UnsignedInt248Type;\n\texports.AlphaFormat = AlphaFormat;\n\texports.RGBFormat = RGBFormat;\n\texports.RGBAFormat = RGBAFormat;\n\texports.LuminanceFormat = LuminanceFormat;\n\texports.LuminanceAlphaFormat = LuminanceAlphaFormat;\n\texports.RGBEFormat = RGBEFormat;\n\texports.DepthFormat = DepthFormat;\n\texports.DepthStencilFormat = DepthStencilFormat;\n\texports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;\n\texports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;\n\texports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;\n\texports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;\n\texports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;\n\texports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;\n\texports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;\n\texports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;\n\texports.RGB_ETC1_Format = RGB_ETC1_Format;\n\texports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;\n\texports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;\n\texports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;\n\texports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;\n\texports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;\n\texports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;\n\texports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;\n\texports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;\n\texports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;\n\texports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;\n\texports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;\n\texports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;\n\texports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;\n\texports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;\n\texports.LoopOnce = LoopOnce;\n\texports.LoopRepeat = LoopRepeat;\n\texports.LoopPingPong = LoopPingPong;\n\texports.InterpolateDiscrete = InterpolateDiscrete;\n\texports.InterpolateLinear = InterpolateLinear;\n\texports.InterpolateSmooth = InterpolateSmooth;\n\texports.ZeroCurvatureEnding = ZeroCurvatureEnding;\n\texports.ZeroSlopeEnding = ZeroSlopeEnding;\n\texports.WrapAroundEnding = WrapAroundEnding;\n\texports.TrianglesDrawMode = TrianglesDrawMode;\n\texports.TriangleStripDrawMode = TriangleStripDrawMode;\n\texports.TriangleFanDrawMode = TriangleFanDrawMode;\n\texports.LinearEncoding = LinearEncoding;\n\texports.sRGBEncoding = sRGBEncoding;\n\texports.GammaEncoding = GammaEncoding;\n\texports.RGBEEncoding = RGBEEncoding;\n\texports.LogLuvEncoding = LogLuvEncoding;\n\texports.RGBM7Encoding = RGBM7Encoding;\n\texports.RGBM16Encoding = RGBM16Encoding;\n\texports.RGBDEncoding = RGBDEncoding;\n\texports.BasicDepthPacking = BasicDepthPacking;\n\texports.RGBADepthPacking = RGBADepthPacking;\n\texports.TangentSpaceNormalMap = TangentSpaceNormalMap;\n\texports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;\n\texports.CubeGeometry = BoxGeometry;\n\texports.Face4 = Face4;\n\texports.LineStrip = LineStrip;\n\texports.LinePieces = LinePieces;\n\texports.MeshFaceMaterial = MeshFaceMaterial;\n\texports.MultiMaterial = MultiMaterial;\n\texports.PointCloud = PointCloud;\n\texports.Particle = Particle;\n\texports.ParticleSystem = ParticleSystem;\n\texports.PointCloudMaterial = PointCloudMaterial;\n\texports.ParticleBasicMaterial = ParticleBasicMaterial;\n\texports.ParticleSystemMaterial = ParticleSystemMaterial;\n\texports.Vertex = Vertex;\n\texports.DynamicBufferAttribute = DynamicBufferAttribute;\n\texports.Int8Attribute = Int8Attribute;\n\texports.Uint8Attribute = Uint8Attribute;\n\texports.Uint8ClampedAttribute = Uint8ClampedAttribute;\n\texports.Int16Attribute = Int16Attribute;\n\texports.Uint16Attribute = Uint16Attribute;\n\texports.Int32Attribute = Int32Attribute;\n\texports.Uint32Attribute = Uint32Attribute;\n\texports.Float32Attribute = Float32Attribute;\n\texports.Float64Attribute = Float64Attribute;\n\texports.ClosedSplineCurve3 = ClosedSplineCurve3;\n\texports.SplineCurve3 = SplineCurve3;\n\texports.Spline = Spline;\n\texports.AxisHelper = AxisHelper;\n\texports.BoundingBoxHelper = BoundingBoxHelper;\n\texports.EdgesHelper = EdgesHelper;\n\texports.WireframeHelper = WireframeHelper;\n\texports.XHRLoader = XHRLoader;\n\texports.BinaryTextureLoader = BinaryTextureLoader;\n\texports.GeometryUtils = GeometryUtils;\n\texports.Projector = Projector;\n\texports.CanvasRenderer = CanvasRenderer;\n\texports.SceneUtils = SceneUtils;\n\texports.LensFlare = LensFlare;\n\n\tObject.defineProperty(exports, '__esModule', { value: true });\n\n})));\n", + "(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n\ttypeof define === 'function' && define.amd ? define(['exports'], factory) :\n\t(factory((global.THREE = {})));\n}(this, (function (exports) { 'use strict';\n\n\t// Polyfills\n\n\tif ( Number.EPSILON === undefined ) {\n\n\t\tNumber.EPSILON = Math.pow( 2, - 52 );\n\n\t}\n\n\tif ( Number.isInteger === undefined ) {\n\n\t\t// Missing in IE\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger\n\n\t\tNumber.isInteger = function ( value ) {\n\n\t\t\treturn typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;\n\n\t\t};\n\n\t}\n\n\t//\n\n\tif ( Math.sign === undefined ) {\n\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign\n\n\t\tMath.sign = function ( x ) {\n\n\t\t\treturn ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;\n\n\t\t};\n\n\t}\n\n\tif ( 'name' in Function.prototype === false ) {\n\n\t\t// Missing in IE\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name\n\n\t\tObject.defineProperty( Function.prototype, 'name', {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.toString().match( /^\\s*function\\s*([^\\(\\s]*)/ )[ 1 ];\n\n\t\t\t}\n\n\t\t} );\n\n\t}\n\n\tif ( Object.assign === undefined ) {\n\n\t\t// Missing in IE\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\n\n\t\t( function () {\n\n\t\t\tObject.assign = function ( target ) {\n\n\t\t\t\tif ( target === undefined || target === null ) {\n\n\t\t\t\t\tthrow new TypeError( 'Cannot convert undefined or null to object' );\n\n\t\t\t\t}\n\n\t\t\t\tvar output = Object( target );\n\n\t\t\t\tfor ( var index = 1; index < arguments.length; index ++ ) {\n\n\t\t\t\t\tvar source = arguments[ index ];\n\n\t\t\t\t\tif ( source !== undefined && source !== null ) {\n\n\t\t\t\t\t\tfor ( var nextKey in source ) {\n\n\t\t\t\t\t\t\tif ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {\n\n\t\t\t\t\t\t\t\toutput[ nextKey ] = source[ nextKey ];\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn output;\n\n\t\t\t};\n\n\t\t} )();\n\n\t}\n\n\t/**\n\t * https://github.com/mrdoob/eventdispatcher.js/\n\t */\n\n\tfunction EventDispatcher() {}\n\n\tObject.assign( EventDispatcher.prototype, {\n\n\t\taddEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) this._listeners = {};\n\n\t\t\tvar listeners = this._listeners;\n\n\t\t\tif ( listeners[ type ] === undefined ) {\n\n\t\t\t\tlisteners[ type ] = [];\n\n\t\t\t}\n\n\t\t\tif ( listeners[ type ].indexOf( listener ) === - 1 ) {\n\n\t\t\t\tlisteners[ type ].push( listener );\n\n\t\t\t}\n\n\t\t},\n\n\t\thasEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) return false;\n\n\t\t\tvar listeners = this._listeners;\n\n\t\t\treturn listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;\n\n\t\t},\n\n\t\tremoveEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) return;\n\n\t\t\tvar listeners = this._listeners;\n\t\t\tvar listenerArray = listeners[ type ];\n\n\t\t\tif ( listenerArray !== undefined ) {\n\n\t\t\t\tvar index = listenerArray.indexOf( listener );\n\n\t\t\t\tif ( index !== - 1 ) {\n\n\t\t\t\t\tlistenerArray.splice( index, 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tdispatchEvent: function ( event ) {\n\n\t\t\tif ( this._listeners === undefined ) return;\n\n\t\t\tvar listeners = this._listeners;\n\t\t\tvar listenerArray = listeners[ event.type ];\n\n\t\t\tif ( listenerArray !== undefined ) {\n\n\t\t\t\tevent.target = this;\n\n\t\t\t\tvar array = listenerArray.slice( 0 );\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i ++ ) {\n\n\t\t\t\t\tarray[ i ].call( this, event );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tvar REVISION = '95';\n\tvar MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };\n\tvar CullFaceNone = 0;\n\tvar CullFaceBack = 1;\n\tvar CullFaceFront = 2;\n\tvar CullFaceFrontBack = 3;\n\tvar FrontFaceDirectionCW = 0;\n\tvar FrontFaceDirectionCCW = 1;\n\tvar BasicShadowMap = 0;\n\tvar PCFShadowMap = 1;\n\tvar PCFSoftShadowMap = 2;\n\tvar FrontSide = 0;\n\tvar BackSide = 1;\n\tvar DoubleSide = 2;\n\tvar FlatShading = 1;\n\tvar SmoothShading = 2;\n\tvar NoColors = 0;\n\tvar FaceColors = 1;\n\tvar VertexColors = 2;\n\tvar NoBlending = 0;\n\tvar NormalBlending = 1;\n\tvar AdditiveBlending = 2;\n\tvar SubtractiveBlending = 3;\n\tvar MultiplyBlending = 4;\n\tvar CustomBlending = 5;\n\tvar AddEquation = 100;\n\tvar SubtractEquation = 101;\n\tvar ReverseSubtractEquation = 102;\n\tvar MinEquation = 103;\n\tvar MaxEquation = 104;\n\tvar ZeroFactor = 200;\n\tvar OneFactor = 201;\n\tvar SrcColorFactor = 202;\n\tvar OneMinusSrcColorFactor = 203;\n\tvar SrcAlphaFactor = 204;\n\tvar OneMinusSrcAlphaFactor = 205;\n\tvar DstAlphaFactor = 206;\n\tvar OneMinusDstAlphaFactor = 207;\n\tvar DstColorFactor = 208;\n\tvar OneMinusDstColorFactor = 209;\n\tvar SrcAlphaSaturateFactor = 210;\n\tvar NeverDepth = 0;\n\tvar AlwaysDepth = 1;\n\tvar LessDepth = 2;\n\tvar LessEqualDepth = 3;\n\tvar EqualDepth = 4;\n\tvar GreaterEqualDepth = 5;\n\tvar GreaterDepth = 6;\n\tvar NotEqualDepth = 7;\n\tvar MultiplyOperation = 0;\n\tvar MixOperation = 1;\n\tvar AddOperation = 2;\n\tvar NoToneMapping = 0;\n\tvar LinearToneMapping = 1;\n\tvar ReinhardToneMapping = 2;\n\tvar Uncharted2ToneMapping = 3;\n\tvar CineonToneMapping = 4;\n\tvar UVMapping = 300;\n\tvar CubeReflectionMapping = 301;\n\tvar CubeRefractionMapping = 302;\n\tvar EquirectangularReflectionMapping = 303;\n\tvar EquirectangularRefractionMapping = 304;\n\tvar SphericalReflectionMapping = 305;\n\tvar CubeUVReflectionMapping = 306;\n\tvar CubeUVRefractionMapping = 307;\n\tvar RepeatWrapping = 1000;\n\tvar ClampToEdgeWrapping = 1001;\n\tvar MirroredRepeatWrapping = 1002;\n\tvar NearestFilter = 1003;\n\tvar NearestMipMapNearestFilter = 1004;\n\tvar NearestMipMapLinearFilter = 1005;\n\tvar LinearFilter = 1006;\n\tvar LinearMipMapNearestFilter = 1007;\n\tvar LinearMipMapLinearFilter = 1008;\n\tvar UnsignedByteType = 1009;\n\tvar ByteType = 1010;\n\tvar ShortType = 1011;\n\tvar UnsignedShortType = 1012;\n\tvar IntType = 1013;\n\tvar UnsignedIntType = 1014;\n\tvar FloatType = 1015;\n\tvar HalfFloatType = 1016;\n\tvar UnsignedShort4444Type = 1017;\n\tvar UnsignedShort5551Type = 1018;\n\tvar UnsignedShort565Type = 1019;\n\tvar UnsignedInt248Type = 1020;\n\tvar AlphaFormat = 1021;\n\tvar RGBFormat = 1022;\n\tvar RGBAFormat = 1023;\n\tvar LuminanceFormat = 1024;\n\tvar LuminanceAlphaFormat = 1025;\n\tvar RGBEFormat = RGBAFormat;\n\tvar DepthFormat = 1026;\n\tvar DepthStencilFormat = 1027;\n\tvar RGB_S3TC_DXT1_Format = 33776;\n\tvar RGBA_S3TC_DXT1_Format = 33777;\n\tvar RGBA_S3TC_DXT3_Format = 33778;\n\tvar RGBA_S3TC_DXT5_Format = 33779;\n\tvar RGB_PVRTC_4BPPV1_Format = 35840;\n\tvar RGB_PVRTC_2BPPV1_Format = 35841;\n\tvar RGBA_PVRTC_4BPPV1_Format = 35842;\n\tvar RGBA_PVRTC_2BPPV1_Format = 35843;\n\tvar RGB_ETC1_Format = 36196;\n\tvar RGBA_ASTC_4x4_Format = 37808;\n\tvar RGBA_ASTC_5x4_Format = 37809;\n\tvar RGBA_ASTC_5x5_Format = 37810;\n\tvar RGBA_ASTC_6x5_Format = 37811;\n\tvar RGBA_ASTC_6x6_Format = 37812;\n\tvar RGBA_ASTC_8x5_Format = 37813;\n\tvar RGBA_ASTC_8x6_Format = 37814;\n\tvar RGBA_ASTC_8x8_Format = 37815;\n\tvar RGBA_ASTC_10x5_Format = 37816;\n\tvar RGBA_ASTC_10x6_Format = 37817;\n\tvar RGBA_ASTC_10x8_Format = 37818;\n\tvar RGBA_ASTC_10x10_Format = 37819;\n\tvar RGBA_ASTC_12x10_Format = 37820;\n\tvar RGBA_ASTC_12x12_Format = 37821;\n\tvar LoopOnce = 2200;\n\tvar LoopRepeat = 2201;\n\tvar LoopPingPong = 2202;\n\tvar InterpolateDiscrete = 2300;\n\tvar InterpolateLinear = 2301;\n\tvar InterpolateSmooth = 2302;\n\tvar ZeroCurvatureEnding = 2400;\n\tvar ZeroSlopeEnding = 2401;\n\tvar WrapAroundEnding = 2402;\n\tvar TrianglesDrawMode = 0;\n\tvar TriangleStripDrawMode = 1;\n\tvar TriangleFanDrawMode = 2;\n\tvar LinearEncoding = 3000;\n\tvar sRGBEncoding = 3001;\n\tvar GammaEncoding = 3007;\n\tvar RGBEEncoding = 3002;\n\tvar LogLuvEncoding = 3003;\n\tvar RGBM7Encoding = 3004;\n\tvar RGBM16Encoding = 3005;\n\tvar RGBDEncoding = 3006;\n\tvar BasicDepthPacking = 3200;\n\tvar RGBADepthPacking = 3201;\n\tvar TangentSpaceNormalMap = 0;\n\tvar ObjectSpaceNormalMap = 1;\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar _Math = {\n\n\t\tDEG2RAD: Math.PI / 180,\n\t\tRAD2DEG: 180 / Math.PI,\n\n\t\tgenerateUUID: ( function () {\n\n\t\t\t// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136\n\n\t\t\tvar lut = [];\n\n\t\t\tfor ( var i = 0; i < 256; i ++ ) {\n\n\t\t\t\tlut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 );\n\n\t\t\t}\n\n\t\t\treturn function generateUUID() {\n\n\t\t\t\tvar d0 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar d1 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar d2 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar d3 = Math.random() * 0xffffffff | 0;\n\t\t\t\tvar uuid = lut[ d0 & 0xff ] + lut[ d0 >> 8 & 0xff ] + lut[ d0 >> 16 & 0xff ] + lut[ d0 >> 24 & 0xff ] + '-' +\n\t\t\t\t\tlut[ d1 & 0xff ] + lut[ d1 >> 8 & 0xff ] + '-' + lut[ d1 >> 16 & 0x0f | 0x40 ] + lut[ d1 >> 24 & 0xff ] + '-' +\n\t\t\t\t\tlut[ d2 & 0x3f | 0x80 ] + lut[ d2 >> 8 & 0xff ] + '-' + lut[ d2 >> 16 & 0xff ] + lut[ d2 >> 24 & 0xff ] +\n\t\t\t\t\tlut[ d3 & 0xff ] + lut[ d3 >> 8 & 0xff ] + lut[ d3 >> 16 & 0xff ] + lut[ d3 >> 24 & 0xff ];\n\n\t\t\t\t// .toUpperCase() here flattens concatenated strings to save heap memory space.\n\t\t\t\treturn uuid.toUpperCase();\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tclamp: function ( value, min, max ) {\n\n\t\t\treturn Math.max( min, Math.min( max, value ) );\n\n\t\t},\n\n\t\t// compute euclidian modulo of m % n\n\t\t// https://en.wikipedia.org/wiki/Modulo_operation\n\n\t\teuclideanModulo: function ( n, m ) {\n\n\t\t\treturn ( ( n % m ) + m ) % m;\n\n\t\t},\n\n\t\t// Linear mapping from range to range \n\n\t\tmapLinear: function ( x, a1, a2, b1, b2 ) {\n\n\t\t\treturn b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );\n\n\t\t},\n\n\t\t// https://en.wikipedia.org/wiki/Linear_interpolation\n\n\t\tlerp: function ( x, y, t ) {\n\n\t\t\treturn ( 1 - t ) * x + t * y;\n\n\t\t},\n\n\t\t// http://en.wikipedia.org/wiki/Smoothstep\n\n\t\tsmoothstep: function ( x, min, max ) {\n\n\t\t\tif ( x <= min ) return 0;\n\t\t\tif ( x >= max ) return 1;\n\n\t\t\tx = ( x - min ) / ( max - min );\n\n\t\t\treturn x * x * ( 3 - 2 * x );\n\n\t\t},\n\n\t\tsmootherstep: function ( x, min, max ) {\n\n\t\t\tif ( x <= min ) return 0;\n\t\t\tif ( x >= max ) return 1;\n\n\t\t\tx = ( x - min ) / ( max - min );\n\n\t\t\treturn x * x * x * ( x * ( x * 6 - 15 ) + 10 );\n\n\t\t},\n\n\t\t// Random integer from interval\n\n\t\trandInt: function ( low, high ) {\n\n\t\t\treturn low + Math.floor( Math.random() * ( high - low + 1 ) );\n\n\t\t},\n\n\t\t// Random float from interval\n\n\t\trandFloat: function ( low, high ) {\n\n\t\t\treturn low + Math.random() * ( high - low );\n\n\t\t},\n\n\t\t// Random float from <-range/2, range/2> interval\n\n\t\trandFloatSpread: function ( range ) {\n\n\t\t\treturn range * ( 0.5 - Math.random() );\n\n\t\t},\n\n\t\tdegToRad: function ( degrees ) {\n\n\t\t\treturn degrees * _Math.DEG2RAD;\n\n\t\t},\n\n\t\tradToDeg: function ( radians ) {\n\n\t\t\treturn radians * _Math.RAD2DEG;\n\n\t\t},\n\n\t\tisPowerOfTwo: function ( value ) {\n\n\t\t\treturn ( value & ( value - 1 ) ) === 0 && value !== 0;\n\n\t\t},\n\n\t\tceilPowerOfTwo: function ( value ) {\n\n\t\t\treturn Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );\n\n\t\t},\n\n\t\tfloorPowerOfTwo: function ( value ) {\n\n\t\t\treturn Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author egraether / http://egraether.com/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t */\n\n\tfunction Vector2( x, y ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\n\t}\n\n\tObject.defineProperties( Vector2.prototype, {\n\n\t\t\"width\": {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.x;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis.x = value;\n\n\t\t\t}\n\n\t\t},\n\n\t\t\"height\": {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.y;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis.y = value;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector2.prototype, {\n\n\t\tisVector2: true,\n\n\t\tset: function ( x, y ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( v ) {\n\n\t\t\tthis.x *= v.x;\n\t\t\tthis.y *= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tthis.x *= scalar;\n\t\t\tthis.y *= scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivide: function ( v ) {\n\n\t\t\tthis.x /= v.x;\n\t\t\tthis.y /= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tapplyMatrix3: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];\n\t\t\tthis.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// assumes min < max, componentwise\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min = new Vector2();\n\t\t\tvar max = new Vector2();\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tmin.set( minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y;\n\n\t\t},\n\n\t\tcross: function ( v ) {\n\n\t\t\treturn this.x * v.y - this.y * v.x;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y );\n\n\t\t},\n\n\t\tmanhattanLength: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() || 1 );\n\n\t\t},\n\n\t\tangle: function () {\n\n\t\t\t// computes the angle in radians with respect to the positive x-axis\n\n\t\t\tvar angle = Math.atan2( this.y, this.x );\n\n\t\t\tif ( angle < 0 ) angle += 2 * Math.PI;\n\n\t\t\treturn angle;\n\n\t\t},\n\n\t\tdistanceTo: function ( v ) {\n\n\t\t\treturn Math.sqrt( this.distanceToSquared( v ) );\n\n\t\t},\n\n\t\tdistanceToSquared: function ( v ) {\n\n\t\t\tvar dx = this.x - v.x, dy = this.y - v.y;\n\t\t\treturn dx * dx + dy * dy;\n\n\t\t},\n\n\t\tmanhattanDistanceTo: function ( v ) {\n\n\t\t\treturn Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.normalize().multiplyScalar( length );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromBufferAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );\n\n\t\t\t}\n\n\t\t\tthis.x = attribute.getX( index );\n\t\t\tthis.y = attribute.getY( index );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateAround: function ( center, angle ) {\n\n\t\t\tvar c = Math.cos( angle ), s = Math.sin( angle );\n\n\t\t\tvar x = this.x - center.x;\n\t\t\tvar y = this.y - center.y;\n\n\t\t\tthis.x = x * c - y * s + center.x;\n\t\t\tthis.y = x * s + y * c + center.y;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author jordi_ros / http://plattsoft.com\n\t * @author D1plo1d / http://github.com/D1plo1d\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author timknip / http://www.floorplanner.com/\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Matrix4() {\n\n\t\tthis.elements = [\n\n\t\t\t1, 0, 0, 0,\n\t\t\t0, 1, 0, 0,\n\t\t\t0, 0, 1, 0,\n\t\t\t0, 0, 0, 1\n\n\t\t];\n\n\t\tif ( arguments.length > 0 ) {\n\n\t\t\tconsole.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );\n\n\t\t}\n\n\t}\n\n\tObject.assign( Matrix4.prototype, {\n\n\t\tisMatrix4: true,\n\n\t\tset: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;\n\t\t\tte[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;\n\t\t\tte[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;\n\t\t\tte[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tidentity: function () {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, 0,\n\t\t\t\t0, 1, 0, 0,\n\t\t\t\t0, 0, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new Matrix4().fromArray( this.elements );\n\n\t\t},\n\n\t\tcopy: function ( m ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = m.elements;\n\n\t\t\tte[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];\n\t\t\tte[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];\n\t\t\tte[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];\n\t\t\tte[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyPosition: function ( m ) {\n\n\t\t\tvar te = this.elements, me = m.elements;\n\n\t\t\tte[ 12 ] = me[ 12 ];\n\t\t\tte[ 13 ] = me[ 13 ];\n\t\t\tte[ 14 ] = me[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\textractBasis: function ( xAxis, yAxis, zAxis ) {\n\n\t\t\txAxis.setFromMatrixColumn( this, 0 );\n\t\t\tyAxis.setFromMatrixColumn( this, 1 );\n\t\t\tzAxis.setFromMatrixColumn( this, 2 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeBasis: function ( xAxis, yAxis, zAxis ) {\n\n\t\t\tthis.set(\n\t\t\t\txAxis.x, yAxis.x, zAxis.x, 0,\n\t\t\t\txAxis.y, yAxis.y, zAxis.y, 0,\n\t\t\t\txAxis.z, yAxis.z, zAxis.z, 0,\n\t\t\t\t0, 0, 0, 1\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\textractRotation: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function extractRotation( m ) {\n\n\t\t\t\t// this method does not support reflection matrices\n\n\t\t\t\tvar te = this.elements;\n\t\t\t\tvar me = m.elements;\n\n\t\t\t\tvar scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();\n\t\t\t\tvar scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();\n\t\t\t\tvar scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();\n\n\t\t\t\tte[ 0 ] = me[ 0 ] * scaleX;\n\t\t\t\tte[ 1 ] = me[ 1 ] * scaleX;\n\t\t\t\tte[ 2 ] = me[ 2 ] * scaleX;\n\t\t\t\tte[ 3 ] = 0;\n\n\t\t\t\tte[ 4 ] = me[ 4 ] * scaleY;\n\t\t\t\tte[ 5 ] = me[ 5 ] * scaleY;\n\t\t\t\tte[ 6 ] = me[ 6 ] * scaleY;\n\t\t\t\tte[ 7 ] = 0;\n\n\t\t\t\tte[ 8 ] = me[ 8 ] * scaleZ;\n\t\t\t\tte[ 9 ] = me[ 9 ] * scaleZ;\n\t\t\t\tte[ 10 ] = me[ 10 ] * scaleZ;\n\t\t\t\tte[ 11 ] = 0;\n\n\t\t\t\tte[ 12 ] = 0;\n\t\t\t\tte[ 13 ] = 0;\n\t\t\t\tte[ 14 ] = 0;\n\t\t\t\tte[ 15 ] = 1;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmakeRotationFromEuler: function ( euler ) {\n\n\t\t\tif ( ! ( euler && euler.isEuler ) ) {\n\n\t\t\t\tconsole.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t}\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar x = euler.x, y = euler.y, z = euler.z;\n\t\t\tvar a = Math.cos( x ), b = Math.sin( x );\n\t\t\tvar c = Math.cos( y ), d = Math.sin( y );\n\t\t\tvar e = Math.cos( z ), f = Math.sin( z );\n\n\t\t\tif ( euler.order === 'XYZ' ) {\n\n\t\t\t\tvar ae = a * e, af = a * f, be = b * e, bf = b * f;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = - c * f;\n\t\t\t\tte[ 8 ] = d;\n\n\t\t\t\tte[ 1 ] = af + be * d;\n\t\t\t\tte[ 5 ] = ae - bf * d;\n\t\t\t\tte[ 9 ] = - b * c;\n\n\t\t\t\tte[ 2 ] = bf - ae * d;\n\t\t\t\tte[ 6 ] = be + af * d;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'YXZ' ) {\n\n\t\t\t\tvar ce = c * e, cf = c * f, de = d * e, df = d * f;\n\n\t\t\t\tte[ 0 ] = ce + df * b;\n\t\t\t\tte[ 4 ] = de * b - cf;\n\t\t\t\tte[ 8 ] = a * d;\n\n\t\t\t\tte[ 1 ] = a * f;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = - b;\n\n\t\t\t\tte[ 2 ] = cf * b - de;\n\t\t\t\tte[ 6 ] = df + ce * b;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'ZXY' ) {\n\n\t\t\t\tvar ce = c * e, cf = c * f, de = d * e, df = d * f;\n\n\t\t\t\tte[ 0 ] = ce - df * b;\n\t\t\t\tte[ 4 ] = - a * f;\n\t\t\t\tte[ 8 ] = de + cf * b;\n\n\t\t\t\tte[ 1 ] = cf + de * b;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = df - ce * b;\n\n\t\t\t\tte[ 2 ] = - a * d;\n\t\t\t\tte[ 6 ] = b;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'ZYX' ) {\n\n\t\t\t\tvar ae = a * e, af = a * f, be = b * e, bf = b * f;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = be * d - af;\n\t\t\t\tte[ 8 ] = ae * d + bf;\n\n\t\t\t\tte[ 1 ] = c * f;\n\t\t\t\tte[ 5 ] = bf * d + ae;\n\t\t\t\tte[ 9 ] = af * d - be;\n\n\t\t\t\tte[ 2 ] = - d;\n\t\t\t\tte[ 6 ] = b * c;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'YZX' ) {\n\n\t\t\t\tvar ac = a * c, ad = a * d, bc = b * c, bd = b * d;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = bd - ac * f;\n\t\t\t\tte[ 8 ] = bc * f + ad;\n\n\t\t\t\tte[ 1 ] = f;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = - b * e;\n\n\t\t\t\tte[ 2 ] = - d * e;\n\t\t\t\tte[ 6 ] = ad * f + bc;\n\t\t\t\tte[ 10 ] = ac - bd * f;\n\n\t\t\t} else if ( euler.order === 'XZY' ) {\n\n\t\t\t\tvar ac = a * c, ad = a * d, bc = b * c, bd = b * d;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = - f;\n\t\t\t\tte[ 8 ] = d * e;\n\n\t\t\t\tte[ 1 ] = ac * f + bd;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = ad * f - bc;\n\n\t\t\t\tte[ 2 ] = bc * f - ad;\n\t\t\t\tte[ 6 ] = b * e;\n\t\t\t\tte[ 10 ] = bd * f + ac;\n\n\t\t\t}\n\n\t\t\t// bottom row\n\t\t\tte[ 3 ] = 0;\n\t\t\tte[ 7 ] = 0;\n\t\t\tte[ 11 ] = 0;\n\n\t\t\t// last column\n\t\t\tte[ 12 ] = 0;\n\t\t\tte[ 13 ] = 0;\n\t\t\tte[ 14 ] = 0;\n\t\t\tte[ 15 ] = 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationFromQuaternion: function () {\n\n\t\t\tvar zero = new Vector3( 0, 0, 0 );\n\t\t\tvar one = new Vector3( 1, 1, 1 );\n\n\t\t\treturn function makeRotationFromQuaternion( q ) {\n\n\t\t\t\treturn this.compose( zero, q, one );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar x = new Vector3();\n\t\t\tvar y = new Vector3();\n\t\t\tvar z = new Vector3();\n\n\t\t\treturn function lookAt( eye, target, up ) {\n\n\t\t\t\tvar te = this.elements;\n\n\t\t\t\tz.subVectors( eye, target );\n\n\t\t\t\tif ( z.lengthSq() === 0 ) {\n\n\t\t\t\t\t// eye and target are in the same position\n\n\t\t\t\t\tz.z = 1;\n\n\t\t\t\t}\n\n\t\t\t\tz.normalize();\n\t\t\t\tx.crossVectors( up, z );\n\n\t\t\t\tif ( x.lengthSq() === 0 ) {\n\n\t\t\t\t\t// up and z are parallel\n\n\t\t\t\t\tif ( Math.abs( up.z ) === 1 ) {\n\n\t\t\t\t\t\tz.x += 0.0001;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tz.z += 0.0001;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tz.normalize();\n\t\t\t\t\tx.crossVectors( up, z );\n\n\t\t\t\t}\n\n\t\t\t\tx.normalize();\n\t\t\t\ty.crossVectors( z, x );\n\n\t\t\t\tte[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;\n\t\t\t\tte[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;\n\t\t\t\tte[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmultiply: function ( m, n ) {\n\n\t\t\tif ( n !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );\n\t\t\t\treturn this.multiplyMatrices( m, n );\n\n\t\t\t}\n\n\t\t\treturn this.multiplyMatrices( this, m );\n\n\t\t},\n\n\t\tpremultiply: function ( m ) {\n\n\t\t\treturn this.multiplyMatrices( m, this );\n\n\t\t},\n\n\t\tmultiplyMatrices: function ( a, b ) {\n\n\t\t\tvar ae = a.elements;\n\t\t\tvar be = b.elements;\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];\n\t\t\tvar a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];\n\t\t\tvar a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];\n\t\t\tvar a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];\n\n\t\t\tvar b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];\n\t\t\tvar b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];\n\t\t\tvar b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];\n\t\t\tvar b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];\n\n\t\t\tte[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;\n\t\t\tte[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;\n\t\t\tte[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;\n\t\t\tte[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;\n\n\t\t\tte[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;\n\t\t\tte[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;\n\t\t\tte[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;\n\t\t\tte[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;\n\n\t\t\tte[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;\n\t\t\tte[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;\n\t\t\tte[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;\n\t\t\tte[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;\n\n\t\t\tte[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;\n\t\t\tte[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;\n\t\t\tte[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;\n\t\t\tte[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;\n\t\t\tte[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;\n\t\t\tte[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;\n\t\t\tte[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyToBufferAttribute: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function applyToBufferAttribute( attribute ) {\n\n\t\t\t\tfor ( var i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\t\tv1.x = attribute.getX( i );\n\t\t\t\t\tv1.y = attribute.getY( i );\n\t\t\t\t\tv1.z = attribute.getZ( i );\n\n\t\t\t\t\tv1.applyMatrix4( this );\n\n\t\t\t\t\tattribute.setXYZ( i, v1.x, v1.y, v1.z );\n\n\t\t\t\t}\n\n\t\t\t\treturn attribute;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tdeterminant: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];\n\t\t\tvar n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];\n\t\t\tvar n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];\n\t\t\tvar n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];\n\n\t\t\t//TODO: make this more efficient\n\t\t\t//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )\n\n\t\t\treturn (\n\t\t\t\tn41 * (\n\t\t\t\t\t+ n14 * n23 * n32\n\t\t\t\t\t - n13 * n24 * n32\n\t\t\t\t\t - n14 * n22 * n33\n\t\t\t\t\t + n12 * n24 * n33\n\t\t\t\t\t + n13 * n22 * n34\n\t\t\t\t\t - n12 * n23 * n34\n\t\t\t\t) +\n\t\t\t\tn42 * (\n\t\t\t\t\t+ n11 * n23 * n34\n\t\t\t\t\t - n11 * n24 * n33\n\t\t\t\t\t + n14 * n21 * n33\n\t\t\t\t\t - n13 * n21 * n34\n\t\t\t\t\t + n13 * n24 * n31\n\t\t\t\t\t - n14 * n23 * n31\n\t\t\t\t) +\n\t\t\t\tn43 * (\n\t\t\t\t\t+ n11 * n24 * n32\n\t\t\t\t\t - n11 * n22 * n34\n\t\t\t\t\t - n14 * n21 * n32\n\t\t\t\t\t + n12 * n21 * n34\n\t\t\t\t\t + n14 * n22 * n31\n\t\t\t\t\t - n12 * n24 * n31\n\t\t\t\t) +\n\t\t\t\tn44 * (\n\t\t\t\t\t- n13 * n22 * n31\n\t\t\t\t\t - n11 * n23 * n32\n\t\t\t\t\t + n11 * n22 * n33\n\t\t\t\t\t + n13 * n21 * n32\n\t\t\t\t\t - n12 * n21 * n33\n\t\t\t\t\t + n12 * n23 * n31\n\t\t\t\t)\n\n\t\t\t);\n\n\t\t},\n\n\t\ttranspose: function () {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar tmp;\n\n\t\t\ttmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;\n\t\t\ttmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;\n\t\t\ttmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;\n\n\t\t\ttmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;\n\t\t\ttmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;\n\t\t\ttmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPosition: function ( v ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 12 ] = v.x;\n\t\t\tte[ 13 ] = v.y;\n\t\t\tte[ 14 ] = v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetInverse: function ( m, throwOnDegenerate ) {\n\n\t\t\t// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm\n\t\t\tvar te = this.elements,\n\t\t\t\tme = m.elements,\n\n\t\t\t\tn11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],\n\t\t\t\tn12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],\n\t\t\t\tn13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],\n\t\t\t\tn14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],\n\n\t\t\t\tt11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,\n\t\t\t\tt12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,\n\t\t\t\tt13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,\n\t\t\t\tt14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;\n\n\t\t\tvar det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;\n\n\t\t\tif ( det === 0 ) {\n\n\t\t\t\tvar msg = \"THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0\";\n\n\t\t\t\tif ( throwOnDegenerate === true ) {\n\n\t\t\t\t\tthrow new Error( msg );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( msg );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.identity();\n\n\t\t\t}\n\n\t\t\tvar detInv = 1 / det;\n\n\t\t\tte[ 0 ] = t11 * detInv;\n\t\t\tte[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;\n\t\t\tte[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;\n\t\t\tte[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;\n\n\t\t\tte[ 4 ] = t12 * detInv;\n\t\t\tte[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;\n\t\t\tte[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;\n\t\t\tte[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;\n\n\t\t\tte[ 8 ] = t13 * detInv;\n\t\t\tte[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;\n\t\t\tte[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;\n\t\t\tte[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;\n\n\t\t\tte[ 12 ] = t14 * detInv;\n\t\t\tte[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;\n\t\t\tte[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;\n\t\t\tte[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tscale: function ( v ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar x = v.x, y = v.y, z = v.z;\n\n\t\t\tte[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;\n\t\t\tte[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;\n\t\t\tte[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;\n\t\t\tte[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetMaxScaleOnAxis: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];\n\t\t\tvar scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];\n\t\t\tvar scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];\n\n\t\t\treturn Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );\n\n\t\t},\n\n\t\tmakeTranslation: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, x,\n\t\t\t\t0, 1, 0, y,\n\t\t\t\t0, 0, 1, z,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationX: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, 0,\n\t\t\t\t0, c, - s, 0,\n\t\t\t\t0, s, c, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationY: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\t c, 0, s, 0,\n\t\t\t\t 0, 1, 0, 0,\n\t\t\t\t- s, 0, c, 0,\n\t\t\t\t 0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationZ: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\tc, - s, 0, 0,\n\t\t\t\ts, c, 0, 0,\n\t\t\t\t0, 0, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationAxis: function ( axis, angle ) {\n\n\t\t\t// Based on http://www.gamedev.net/reference/articles/article1199.asp\n\n\t\t\tvar c = Math.cos( angle );\n\t\t\tvar s = Math.sin( angle );\n\t\t\tvar t = 1 - c;\n\t\t\tvar x = axis.x, y = axis.y, z = axis.z;\n\t\t\tvar tx = t * x, ty = t * y;\n\n\t\t\tthis.set(\n\n\t\t\t\ttx * x + c, tx * y - s * z, tx * z + s * y, 0,\n\t\t\t\ttx * y + s * z, ty * y + c, ty * z - s * x, 0,\n\t\t\t\ttx * z - s * y, ty * z + s * x, t * z * z + c, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\t return this;\n\n\t\t},\n\n\t\tmakeScale: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\tx, 0, 0, 0,\n\t\t\t\t0, y, 0, 0,\n\t\t\t\t0, 0, z, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeShear: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, y, z, 0,\n\t\t\t\tx, 1, z, 0,\n\t\t\t\tx, y, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcompose: function ( position, quaternion, scale ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;\n\t\t\tvar x2 = x + x,\ty2 = y + y, z2 = z + z;\n\t\t\tvar xx = x * x2, xy = x * y2, xz = x * z2;\n\t\t\tvar yy = y * y2, yz = y * z2, zz = z * z2;\n\t\t\tvar wx = w * x2, wy = w * y2, wz = w * z2;\n\n\t\t\tvar sx = scale.x, sy = scale.y, sz = scale.z;\n\n\t\t te[ 0 ] = ( 1 - ( yy + zz ) ) * sx;\n\t\t te[ 1 ] = ( xy + wz ) * sx;\n\t\t te[ 2 ] = ( xz - wy ) * sx;\n\t\t te[ 3 ] = 0;\n\n\t\t te[ 4 ] = ( xy - wz ) * sy;\n\t\t te[ 5 ] = ( 1 - ( xx + zz ) ) * sy;\n\t\t te[ 6 ] = ( yz + wx ) * sy;\n\t\t te[ 7 ] = 0;\n\n\t\t te[ 8 ] = ( xz + wy ) * sz;\n\t\t te[ 9 ] = ( yz - wx ) * sz;\n\t\t te[ 10 ] = ( 1 - ( xx + yy ) ) * sz;\n\t\t te[ 11 ] = 0;\n\n\t\t te[ 12 ] = position.x;\n\t\t te[ 13 ] = position.y;\n\t\t te[ 14 ] = position.z;\n\t\t te[ 15 ] = 1;\n\n\t\t return this;\n\n\t\t},\n\n\t\tdecompose: function () {\n\n\t\t\tvar vector = new Vector3();\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function decompose( position, quaternion, scale ) {\n\n\t\t\t\tvar te = this.elements;\n\n\t\t\t\tvar sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();\n\t\t\t\tvar sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();\n\t\t\t\tvar sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();\n\n\t\t\t\t// if determine is negative, we need to invert one scale\n\t\t\t\tvar det = this.determinant();\n\t\t\t\tif ( det < 0 ) sx = - sx;\n\n\t\t\t\tposition.x = te[ 12 ];\n\t\t\t\tposition.y = te[ 13 ];\n\t\t\t\tposition.z = te[ 14 ];\n\n\t\t\t\t// scale the rotation part\n\t\t\t\tmatrix.copy( this );\n\n\t\t\t\tvar invSX = 1 / sx;\n\t\t\t\tvar invSY = 1 / sy;\n\t\t\t\tvar invSZ = 1 / sz;\n\n\t\t\t\tmatrix.elements[ 0 ] *= invSX;\n\t\t\t\tmatrix.elements[ 1 ] *= invSX;\n\t\t\t\tmatrix.elements[ 2 ] *= invSX;\n\n\t\t\t\tmatrix.elements[ 4 ] *= invSY;\n\t\t\t\tmatrix.elements[ 5 ] *= invSY;\n\t\t\t\tmatrix.elements[ 6 ] *= invSY;\n\n\t\t\t\tmatrix.elements[ 8 ] *= invSZ;\n\t\t\t\tmatrix.elements[ 9 ] *= invSZ;\n\t\t\t\tmatrix.elements[ 10 ] *= invSZ;\n\n\t\t\t\tquaternion.setFromRotationMatrix( matrix );\n\n\t\t\t\tscale.x = sx;\n\t\t\t\tscale.y = sy;\n\t\t\t\tscale.z = sz;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmakePerspective: function ( left, right, top, bottom, near, far ) {\n\n\t\t\tif ( far === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );\n\n\t\t\t}\n\n\t\t\tvar te = this.elements;\n\t\t\tvar x = 2 * near / ( right - left );\n\t\t\tvar y = 2 * near / ( top - bottom );\n\n\t\t\tvar a = ( right + left ) / ( right - left );\n\t\t\tvar b = ( top + bottom ) / ( top - bottom );\n\t\t\tvar c = - ( far + near ) / ( far - near );\n\t\t\tvar d = - 2 * far * near / ( far - near );\n\n\t\t\tte[ 0 ] = x;\tte[ 4 ] = 0;\tte[ 8 ] = a;\tte[ 12 ] = 0;\n\t\t\tte[ 1 ] = 0;\tte[ 5 ] = y;\tte[ 9 ] = b;\tte[ 13 ] = 0;\n\t\t\tte[ 2 ] = 0;\tte[ 6 ] = 0;\tte[ 10 ] = c;\tte[ 14 ] = d;\n\t\t\tte[ 3 ] = 0;\tte[ 7 ] = 0;\tte[ 11 ] = - 1;\tte[ 15 ] = 0;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeOrthographic: function ( left, right, top, bottom, near, far ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar w = 1.0 / ( right - left );\n\t\t\tvar h = 1.0 / ( top - bottom );\n\t\t\tvar p = 1.0 / ( far - near );\n\n\t\t\tvar x = ( right + left ) * w;\n\t\t\tvar y = ( top + bottom ) * h;\n\t\t\tvar z = ( far + near ) * p;\n\n\t\t\tte[ 0 ] = 2 * w;\tte[ 4 ] = 0;\tte[ 8 ] = 0;\tte[ 12 ] = - x;\n\t\t\tte[ 1 ] = 0;\tte[ 5 ] = 2 * h;\tte[ 9 ] = 0;\tte[ 13 ] = - y;\n\t\t\tte[ 2 ] = 0;\tte[ 6 ] = 0;\tte[ 10 ] = - 2 * p;\tte[ 14 ] = - z;\n\t\t\tte[ 3 ] = 0;\tte[ 7 ] = 0;\tte[ 11 ] = 0;\tte[ 15 ] = 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( matrix ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = matrix.elements;\n\n\t\t\tfor ( var i = 0; i < 16; i ++ ) {\n\n\t\t\t\tif ( te[ i ] !== me[ i ] ) return false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tfor ( var i = 0; i < 16; i ++ ) {\n\n\t\t\t\tthis.elements[ i ] = array[ i + offset ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tvar te = this.elements;\n\n\t\t\tarray[ offset ] = te[ 0 ];\n\t\t\tarray[ offset + 1 ] = te[ 1 ];\n\t\t\tarray[ offset + 2 ] = te[ 2 ];\n\t\t\tarray[ offset + 3 ] = te[ 3 ];\n\n\t\t\tarray[ offset + 4 ] = te[ 4 ];\n\t\t\tarray[ offset + 5 ] = te[ 5 ];\n\t\t\tarray[ offset + 6 ] = te[ 6 ];\n\t\t\tarray[ offset + 7 ] = te[ 7 ];\n\n\t\t\tarray[ offset + 8 ] = te[ 8 ];\n\t\t\tarray[ offset + 9 ] = te[ 9 ];\n\t\t\tarray[ offset + 10 ] = te[ 10 ];\n\t\t\tarray[ offset + 11 ] = te[ 11 ];\n\n\t\t\tarray[ offset + 12 ] = te[ 12 ];\n\t\t\tarray[ offset + 13 ] = te[ 13 ];\n\t\t\tarray[ offset + 14 ] = te[ 14 ];\n\t\t\tarray[ offset + 15 ] = te[ 15 ];\n\n\t\t\treturn array;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Quaternion( x, y, z, w ) {\n\n\t\tthis._x = x || 0;\n\t\tthis._y = y || 0;\n\t\tthis._z = z || 0;\n\t\tthis._w = ( w !== undefined ) ? w : 1;\n\n\t}\n\n\tObject.assign( Quaternion, {\n\n\t\tslerp: function ( qa, qb, qm, t ) {\n\n\t\t\treturn qm.copy( qa ).slerp( qb, t );\n\n\t\t},\n\n\t\tslerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {\n\n\t\t\t// fuzz-free, array-based Quaternion SLERP operation\n\n\t\t\tvar x0 = src0[ srcOffset0 + 0 ],\n\t\t\t\ty0 = src0[ srcOffset0 + 1 ],\n\t\t\t\tz0 = src0[ srcOffset0 + 2 ],\n\t\t\t\tw0 = src0[ srcOffset0 + 3 ],\n\n\t\t\t\tx1 = src1[ srcOffset1 + 0 ],\n\t\t\t\ty1 = src1[ srcOffset1 + 1 ],\n\t\t\t\tz1 = src1[ srcOffset1 + 2 ],\n\t\t\t\tw1 = src1[ srcOffset1 + 3 ];\n\n\t\t\tif ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {\n\n\t\t\t\tvar s = 1 - t,\n\n\t\t\t\t\tcos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,\n\n\t\t\t\t\tdir = ( cos >= 0 ? 1 : - 1 ),\n\t\t\t\t\tsqrSin = 1 - cos * cos;\n\n\t\t\t\t// Skip the Slerp for tiny steps to avoid numeric problems:\n\t\t\t\tif ( sqrSin > Number.EPSILON ) {\n\n\t\t\t\t\tvar sin = Math.sqrt( sqrSin ),\n\t\t\t\t\t\tlen = Math.atan2( sin, cos * dir );\n\n\t\t\t\t\ts = Math.sin( s * len ) / sin;\n\t\t\t\t\tt = Math.sin( t * len ) / sin;\n\n\t\t\t\t}\n\n\t\t\t\tvar tDir = t * dir;\n\n\t\t\t\tx0 = x0 * s + x1 * tDir;\n\t\t\t\ty0 = y0 * s + y1 * tDir;\n\t\t\t\tz0 = z0 * s + z1 * tDir;\n\t\t\t\tw0 = w0 * s + w1 * tDir;\n\n\t\t\t\t// Normalize in case we just did a lerp:\n\t\t\t\tif ( s === 1 - t ) {\n\n\t\t\t\t\tvar f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );\n\n\t\t\t\t\tx0 *= f;\n\t\t\t\t\ty0 *= f;\n\t\t\t\t\tz0 *= f;\n\t\t\t\t\tw0 *= f;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tdst[ dstOffset ] = x0;\n\t\t\tdst[ dstOffset + 1 ] = y0;\n\t\t\tdst[ dstOffset + 2 ] = z0;\n\t\t\tdst[ dstOffset + 3 ] = w0;\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( Quaternion.prototype, {\n\n\t\tx: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._x;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._x = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\ty: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._y;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._y = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\tz: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._z;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._z = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\tw: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._w;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._w = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Quaternion.prototype, {\n\n\t\tset: function ( x, y, z, w ) {\n\n\t\t\tthis._x = x;\n\t\t\tthis._y = y;\n\t\t\tthis._z = z;\n\t\t\tthis._w = w;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this._x, this._y, this._z, this._w );\n\n\t\t},\n\n\t\tcopy: function ( quaternion ) {\n\n\t\t\tthis._x = quaternion.x;\n\t\t\tthis._y = quaternion.y;\n\t\t\tthis._z = quaternion.z;\n\t\t\tthis._w = quaternion.w;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromEuler: function ( euler, update ) {\n\n\t\t\tif ( ! ( euler && euler.isEuler ) ) {\n\n\t\t\t\tthrow new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t}\n\n\t\t\tvar x = euler._x, y = euler._y, z = euler._z, order = euler.order;\n\n\t\t\t// http://www.mathworks.com/matlabcentral/fileexchange/\n\t\t\t// \t20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/\n\t\t\t//\tcontent/SpinCalc.m\n\n\t\t\tvar cos = Math.cos;\n\t\t\tvar sin = Math.sin;\n\n\t\t\tvar c1 = cos( x / 2 );\n\t\t\tvar c2 = cos( y / 2 );\n\t\t\tvar c3 = cos( z / 2 );\n\n\t\t\tvar s1 = sin( x / 2 );\n\t\t\tvar s2 = sin( y / 2 );\n\t\t\tvar s3 = sin( z / 2 );\n\n\t\t\tif ( order === 'XYZ' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'YXZ' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'ZXY' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'ZYX' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'YZX' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'XZY' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t}\n\n\t\t\tif ( update !== false ) this.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromAxisAngle: function ( axis, angle ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm\n\n\t\t\t// assumes axis is normalized\n\n\t\t\tvar halfAngle = angle / 2, s = Math.sin( halfAngle );\n\n\t\t\tthis._x = axis.x * s;\n\t\t\tthis._y = axis.y * s;\n\t\t\tthis._z = axis.z * s;\n\t\t\tthis._w = Math.cos( halfAngle );\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromRotationMatrix: function ( m ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar te = m.elements,\n\n\t\t\t\tm11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],\n\t\t\t\tm21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],\n\t\t\t\tm31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],\n\n\t\t\t\ttrace = m11 + m22 + m33,\n\t\t\t\ts;\n\n\t\t\tif ( trace > 0 ) {\n\n\t\t\t\ts = 0.5 / Math.sqrt( trace + 1.0 );\n\n\t\t\t\tthis._w = 0.25 / s;\n\t\t\t\tthis._x = ( m32 - m23 ) * s;\n\t\t\t\tthis._y = ( m13 - m31 ) * s;\n\t\t\t\tthis._z = ( m21 - m12 ) * s;\n\n\t\t\t} else if ( m11 > m22 && m11 > m33 ) {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );\n\n\t\t\t\tthis._w = ( m32 - m23 ) / s;\n\t\t\t\tthis._x = 0.25 * s;\n\t\t\t\tthis._y = ( m12 + m21 ) / s;\n\t\t\t\tthis._z = ( m13 + m31 ) / s;\n\n\t\t\t} else if ( m22 > m33 ) {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );\n\n\t\t\t\tthis._w = ( m13 - m31 ) / s;\n\t\t\t\tthis._x = ( m12 + m21 ) / s;\n\t\t\t\tthis._y = 0.25 * s;\n\t\t\t\tthis._z = ( m23 + m32 ) / s;\n\n\t\t\t} else {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );\n\n\t\t\t\tthis._w = ( m21 - m12 ) / s;\n\t\t\t\tthis._x = ( m13 + m31 ) / s;\n\t\t\t\tthis._y = ( m23 + m32 ) / s;\n\t\t\t\tthis._z = 0.25 * s;\n\n\t\t\t}\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromUnitVectors: function () {\n\n\t\t\t// assumes direction vectors vFrom and vTo are normalized\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar r;\n\n\t\t\tvar EPS = 0.000001;\n\n\t\t\treturn function setFromUnitVectors( vFrom, vTo ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\n\t\t\t\tr = vFrom.dot( vTo ) + 1;\n\n\t\t\t\tif ( r < EPS ) {\n\n\t\t\t\t\tr = 0;\n\n\t\t\t\t\tif ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {\n\n\t\t\t\t\t\tv1.set( - vFrom.y, vFrom.x, 0 );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tv1.set( 0, - vFrom.z, vFrom.y );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tv1.crossVectors( vFrom, vTo );\n\n\t\t\t\t}\n\n\t\t\t\tthis._x = v1.x;\n\t\t\t\tthis._y = v1.y;\n\t\t\t\tthis._z = v1.z;\n\t\t\t\tthis._w = r;\n\n\t\t\t\treturn this.normalize();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tangleTo: function ( q ) {\n\n\t\t\treturn 2 * Math.acos( Math.abs( _Math.clamp( this.dot( q ), - 1, 1 ) ) );\n\n\t\t},\n\n\t\trotateTowards: function ( q, step ) {\n\n\t\t\tvar angle = this.angleTo( q );\n\n\t\t\tif ( angle === 0 ) return this;\n\n\t\t\tvar t = Math.min( 1, step / angle );\n\n\t\t\tthis.slerp( q, t );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tinverse: function () {\n\n\t\t\t// quaternion is assumed to have unit length\n\n\t\t\treturn this.conjugate();\n\n\t\t},\n\n\t\tconjugate: function () {\n\n\t\t\tthis._x *= - 1;\n\t\t\tthis._y *= - 1;\n\t\t\tthis._z *= - 1;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\tvar l = this.length();\n\n\t\t\tif ( l === 0 ) {\n\n\t\t\t\tthis._x = 0;\n\t\t\t\tthis._y = 0;\n\t\t\t\tthis._z = 0;\n\t\t\t\tthis._w = 1;\n\n\t\t\t} else {\n\n\t\t\t\tl = 1 / l;\n\n\t\t\t\tthis._x = this._x * l;\n\t\t\t\tthis._y = this._y * l;\n\t\t\t\tthis._z = this._z * l;\n\t\t\t\tthis._w = this._w * l;\n\n\t\t\t}\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( q, p ) {\n\n\t\t\tif ( p !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );\n\t\t\t\treturn this.multiplyQuaternions( q, p );\n\n\t\t\t}\n\n\t\t\treturn this.multiplyQuaternions( this, q );\n\n\t\t},\n\n\t\tpremultiply: function ( q ) {\n\n\t\t\treturn this.multiplyQuaternions( q, this );\n\n\t\t},\n\n\t\tmultiplyQuaternions: function ( a, b ) {\n\n\t\t\t// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm\n\n\t\t\tvar qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;\n\t\t\tvar qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;\n\n\t\t\tthis._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;\n\t\t\tthis._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;\n\t\t\tthis._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;\n\t\t\tthis._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tslerp: function ( qb, t ) {\n\n\t\t\tif ( t === 0 ) return this;\n\t\t\tif ( t === 1 ) return this.copy( qb );\n\n\t\t\tvar x = this._x, y = this._y, z = this._z, w = this._w;\n\n\t\t\t// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/\n\n\t\t\tvar cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;\n\n\t\t\tif ( cosHalfTheta < 0 ) {\n\n\t\t\t\tthis._w = - qb._w;\n\t\t\t\tthis._x = - qb._x;\n\t\t\t\tthis._y = - qb._y;\n\t\t\t\tthis._z = - qb._z;\n\n\t\t\t\tcosHalfTheta = - cosHalfTheta;\n\n\t\t\t} else {\n\n\t\t\t\tthis.copy( qb );\n\n\t\t\t}\n\n\t\t\tif ( cosHalfTheta >= 1.0 ) {\n\n\t\t\t\tthis._w = w;\n\t\t\t\tthis._x = x;\n\t\t\t\tthis._y = y;\n\t\t\t\tthis._z = z;\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;\n\n\t\t\tif ( sqrSinHalfTheta <= Number.EPSILON ) {\n\n\t\t\t\tvar s = 1 - t;\n\t\t\t\tthis._w = s * w + t * this._w;\n\t\t\t\tthis._x = s * x + t * this._x;\n\t\t\t\tthis._y = s * y + t * this._y;\n\t\t\t\tthis._z = s * z + t * this._z;\n\n\t\t\t\treturn this.normalize();\n\n\t\t\t}\n\n\t\t\tvar sinHalfTheta = Math.sqrt( sqrSinHalfTheta );\n\t\t\tvar halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );\n\t\t\tvar ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,\n\t\t\t\tratioB = Math.sin( t * halfTheta ) / sinHalfTheta;\n\n\t\t\tthis._w = ( w * ratioA + this._w * ratioB );\n\t\t\tthis._x = ( x * ratioA + this._x * ratioB );\n\t\t\tthis._y = ( y * ratioA + this._y * ratioB );\n\t\t\tthis._z = ( z * ratioA + this._z * ratioB );\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( quaternion ) {\n\n\t\t\treturn ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis._x = array[ offset ];\n\t\t\tthis._y = array[ offset + 1 ];\n\t\t\tthis._z = array[ offset + 2 ];\n\t\t\tthis._w = array[ offset + 3 ];\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this._x;\n\t\t\tarray[ offset + 1 ] = this._y;\n\t\t\tarray[ offset + 2 ] = this._z;\n\t\t\tarray[ offset + 3 ] = this._w;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tonChange: function ( callback ) {\n\n\t\t\tthis.onChangeCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonChangeCallback: function () {}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author kile / http://kile.stravaganza.org/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author egraether / http://egraether.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Vector3( x, y, z ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\t\tthis.z = z || 0;\n\n\t}\n\n\tObject.assign( Vector3.prototype, {\n\n\t\tisVector3: true,\n\n\t\tset: function ( x, y, z ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\t\t\tthis.z = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( z ) {\n\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tcase 2: this.z = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tcase 2: return this.z;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y, this.z );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\t\t\tthis.z = v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\t\t\tthis.z += v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\t\t\tthis.z += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\t\t\tthis.z = a.z + b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\t\t\tthis.z += v.z * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\t\t\tthis.z -= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\t\t\tthis.z -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\t\t\tthis.z = a.z - b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );\n\t\t\t\treturn this.multiplyVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x *= v.x;\n\t\t\tthis.y *= v.y;\n\t\t\tthis.z *= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tthis.x *= scalar;\n\t\t\tthis.y *= scalar;\n\t\t\tthis.z *= scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x * b.x;\n\t\t\tthis.y = a.y * b.y;\n\t\t\tthis.z = a.z * b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyEuler: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function applyEuler( euler ) {\n\n\t\t\t\tif ( ! ( euler && euler.isEuler ) ) {\n\n\t\t\t\t\tconsole.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.applyQuaternion( quaternion.setFromEuler( euler ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyAxisAngle: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function applyAxisAngle( axis, angle ) {\n\n\t\t\t\treturn this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyMatrix3: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;\n\t\t\tthis.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;\n\t\t\tthis.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tvar w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );\n\n\t\t\tthis.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;\n\t\t\tthis.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;\n\t\t\tthis.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyQuaternion: function ( q ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar qx = q.x, qy = q.y, qz = q.z, qw = q.w;\n\n\t\t\t// calculate quat * vector\n\n\t\t\tvar ix = qw * x + qy * z - qz * y;\n\t\t\tvar iy = qw * y + qz * x - qx * z;\n\t\t\tvar iz = qw * z + qx * y - qy * x;\n\t\t\tvar iw = - qx * x - qy * y - qz * z;\n\n\t\t\t// calculate result * inverse quat\n\n\t\t\tthis.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;\n\t\t\tthis.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;\n\t\t\tthis.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tproject: function () {\n\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function project( camera ) {\n\n\t\t\t\tmatrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );\n\t\t\t\treturn this.applyMatrix4( matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tunproject: function () {\n\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function unproject( camera ) {\n\n\t\t\t\tmatrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );\n\t\t\t\treturn this.applyMatrix4( matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttransformDirection: function ( m ) {\n\n\t\t\t// input: THREE.Matrix4 affine matrix\n\t\t\t// vector interpreted as a direction\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;\n\t\t\tthis.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;\n\t\t\tthis.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;\n\n\t\t\treturn this.normalize();\n\n\t\t},\n\n\t\tdivide: function ( v ) {\n\n\t\t\tthis.x /= v.x;\n\t\t\tthis.y /= v.y;\n\t\t\tthis.z /= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\t\t\tthis.z = Math.min( this.z, v.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\t\t\tthis.z = Math.max( this.z, v.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// assumes min < max, componentwise\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\t\t\tthis.z = Math.max( min.z, Math.min( max.z, this.z ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min = new Vector3();\n\t\t\tvar max = new Vector3();\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tmin.set( minVal, minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\t\t\tthis.z = Math.floor( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\t\t\tthis.z = Math.ceil( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\t\t\tthis.z = Math.round( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\t\t\tthis.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\t\t\tthis.z = - this.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y + this.z * v.z;\n\n\t\t},\n\n\t\t// TODO lengthSquared?\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y + this.z * this.z;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );\n\n\t\t},\n\n\t\tmanhattanLength: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() || 1 );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.normalize().multiplyScalar( length );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\t\t\tthis.z += ( v.z - this.z ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tcross: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );\n\t\t\t\treturn this.crossVectors( v, w );\n\n\t\t\t}\n\n\t\t\treturn this.crossVectors( this, v );\n\n\t\t},\n\n\t\tcrossVectors: function ( a, b ) {\n\n\t\t\tvar ax = a.x, ay = a.y, az = a.z;\n\t\t\tvar bx = b.x, by = b.y, bz = b.z;\n\n\t\t\tthis.x = ay * bz - az * by;\n\t\t\tthis.y = az * bx - ax * bz;\n\t\t\tthis.z = ax * by - ay * bx;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tprojectOnVector: function ( vector ) {\n\n\t\t\tvar scalar = vector.dot( this ) / vector.lengthSq();\n\n\t\t\treturn this.copy( vector ).multiplyScalar( scalar );\n\n\t\t},\n\n\t\tprojectOnPlane: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function projectOnPlane( planeNormal ) {\n\n\t\t\t\tv1.copy( this ).projectOnVector( planeNormal );\n\n\t\t\t\treturn this.sub( v1 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\treflect: function () {\n\n\t\t\t// reflect incident vector off plane orthogonal to normal\n\t\t\t// normal is assumed to have unit length\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function reflect( normal ) {\n\n\t\t\t\treturn this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tangleTo: function ( v ) {\n\n\t\t\tvar theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );\n\n\t\t\t// clamp, to handle numerical problems\n\n\t\t\treturn Math.acos( _Math.clamp( theta, - 1, 1 ) );\n\n\t\t},\n\n\t\tdistanceTo: function ( v ) {\n\n\t\t\treturn Math.sqrt( this.distanceToSquared( v ) );\n\n\t\t},\n\n\t\tdistanceToSquared: function ( v ) {\n\n\t\t\tvar dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;\n\n\t\t\treturn dx * dx + dy * dy + dz * dz;\n\n\t\t},\n\n\t\tmanhattanDistanceTo: function ( v ) {\n\n\t\t\treturn Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );\n\n\t\t},\n\n\t\tsetFromSpherical: function ( s ) {\n\n\t\t\tvar sinPhiRadius = Math.sin( s.phi ) * s.radius;\n\n\t\t\tthis.x = sinPhiRadius * Math.sin( s.theta );\n\t\t\tthis.y = Math.cos( s.phi ) * s.radius;\n\t\t\tthis.z = sinPhiRadius * Math.cos( s.theta );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCylindrical: function ( c ) {\n\n\t\t\tthis.x = c.radius * Math.sin( c.theta );\n\t\t\tthis.y = c.y;\n\t\t\tthis.z = c.radius * Math.cos( c.theta );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixPosition: function ( m ) {\n\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 12 ];\n\t\t\tthis.y = e[ 13 ];\n\t\t\tthis.z = e[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixScale: function ( m ) {\n\n\t\t\tvar sx = this.setFromMatrixColumn( m, 0 ).length();\n\t\t\tvar sy = this.setFromMatrixColumn( m, 1 ).length();\n\t\t\tvar sz = this.setFromMatrixColumn( m, 2 ).length();\n\n\t\t\tthis.x = sx;\n\t\t\tthis.y = sy;\n\t\t\tthis.z = sz;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixColumn: function ( m, index ) {\n\n\t\t\treturn this.fromArray( m.elements, index * 4 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\t\t\tthis.z = array[ offset + 2 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\t\t\tarray[ offset + 2 ] = this.z;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromBufferAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );\n\n\t\t\t}\n\n\t\t\tthis.x = attribute.getX( index );\n\t\t\tthis.y = attribute.getY( index );\n\t\t\tthis.z = attribute.getZ( index );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t * @author tschw\n\t */\n\n\tfunction Matrix3() {\n\n\t\tthis.elements = [\n\n\t\t\t1, 0, 0,\n\t\t\t0, 1, 0,\n\t\t\t0, 0, 1\n\n\t\t];\n\n\t\tif ( arguments.length > 0 ) {\n\n\t\t\tconsole.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );\n\n\t\t}\n\n\t}\n\n\tObject.assign( Matrix3.prototype, {\n\n\t\tisMatrix3: true,\n\n\t\tset: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;\n\t\t\tte[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;\n\t\t\tte[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tidentity: function () {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0,\n\t\t\t\t0, 1, 0,\n\t\t\t\t0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().fromArray( this.elements );\n\n\t\t},\n\n\t\tcopy: function ( m ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = m.elements;\n\n\t\t\tte[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];\n\t\t\tte[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];\n\t\t\tte[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrix4: function ( m ) {\n\n\t\t\tvar me = m.elements;\n\n\t\t\tthis.set(\n\n\t\t\t\tme[ 0 ], me[ 4 ], me[ 8 ],\n\t\t\t\tme[ 1 ], me[ 5 ], me[ 9 ],\n\t\t\t\tme[ 2 ], me[ 6 ], me[ 10 ]\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyToBufferAttribute: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function applyToBufferAttribute( attribute ) {\n\n\t\t\t\tfor ( var i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\t\tv1.x = attribute.getX( i );\n\t\t\t\t\tv1.y = attribute.getY( i );\n\t\t\t\t\tv1.z = attribute.getZ( i );\n\n\t\t\t\t\tv1.applyMatrix3( this );\n\n\t\t\t\t\tattribute.setXYZ( i, v1.x, v1.y, v1.z );\n\n\t\t\t\t}\n\n\t\t\t\treturn attribute;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmultiply: function ( m ) {\n\n\t\t\treturn this.multiplyMatrices( this, m );\n\n\t\t},\n\n\t\tpremultiply: function ( m ) {\n\n\t\t\treturn this.multiplyMatrices( m, this );\n\n\t\t},\n\n\t\tmultiplyMatrices: function ( a, b ) {\n\n\t\t\tvar ae = a.elements;\n\t\t\tvar be = b.elements;\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];\n\t\t\tvar a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];\n\t\t\tvar a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];\n\n\t\t\tvar b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];\n\t\t\tvar b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];\n\t\t\tvar b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];\n\n\t\t\tte[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;\n\t\t\tte[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;\n\t\t\tte[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;\n\n\t\t\tte[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;\n\t\t\tte[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;\n\t\t\tte[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;\n\n\t\t\tte[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;\n\t\t\tte[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;\n\t\t\tte[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;\n\t\t\tte[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;\n\t\t\tte[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdeterminant: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],\n\t\t\t\td = te[ 3 ], e = te[ 4 ], f = te[ 5 ],\n\t\t\t\tg = te[ 6 ], h = te[ 7 ], i = te[ 8 ];\n\n\t\t\treturn a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;\n\n\t\t},\n\n\t\tgetInverse: function ( matrix, throwOnDegenerate ) {\n\n\t\t\tif ( matrix && matrix.isMatrix4 ) {\n\n\t\t\t\tconsole.error( \"THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument.\" );\n\n\t\t\t}\n\n\t\t\tvar me = matrix.elements,\n\t\t\t\tte = this.elements,\n\n\t\t\t\tn11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],\n\t\t\t\tn12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],\n\t\t\t\tn13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],\n\n\t\t\t\tt11 = n33 * n22 - n32 * n23,\n\t\t\t\tt12 = n32 * n13 - n33 * n12,\n\t\t\t\tt13 = n23 * n12 - n22 * n13,\n\n\t\t\t\tdet = n11 * t11 + n21 * t12 + n31 * t13;\n\n\t\t\tif ( det === 0 ) {\n\n\t\t\t\tvar msg = \"THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0\";\n\n\t\t\t\tif ( throwOnDegenerate === true ) {\n\n\t\t\t\t\tthrow new Error( msg );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( msg );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.identity();\n\n\t\t\t}\n\n\t\t\tvar detInv = 1 / det;\n\n\t\t\tte[ 0 ] = t11 * detInv;\n\t\t\tte[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;\n\t\t\tte[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;\n\n\t\t\tte[ 3 ] = t12 * detInv;\n\t\t\tte[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;\n\t\t\tte[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;\n\n\t\t\tte[ 6 ] = t13 * detInv;\n\t\t\tte[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;\n\t\t\tte[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranspose: function () {\n\n\t\t\tvar tmp, m = this.elements;\n\n\t\t\ttmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;\n\t\t\ttmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;\n\t\t\ttmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetNormalMatrix: function ( matrix4 ) {\n\n\t\t\treturn this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();\n\n\t\t},\n\n\t\ttransposeIntoArray: function ( r ) {\n\n\t\t\tvar m = this.elements;\n\n\t\t\tr[ 0 ] = m[ 0 ];\n\t\t\tr[ 1 ] = m[ 3 ];\n\t\t\tr[ 2 ] = m[ 6 ];\n\t\t\tr[ 3 ] = m[ 1 ];\n\t\t\tr[ 4 ] = m[ 4 ];\n\t\t\tr[ 5 ] = m[ 7 ];\n\t\t\tr[ 6 ] = m[ 2 ];\n\t\t\tr[ 7 ] = m[ 5 ];\n\t\t\tr[ 8 ] = m[ 8 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetUvTransform: function ( tx, ty, sx, sy, rotation, cx, cy ) {\n\n\t\t\tvar c = Math.cos( rotation );\n\t\t\tvar s = Math.sin( rotation );\n\n\t\t\tthis.set(\n\t\t\t\tsx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,\n\t\t\t\t- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,\n\t\t\t\t0, 0, 1\n\t\t\t);\n\n\t\t},\n\n\t\tscale: function ( sx, sy ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;\n\t\t\tte[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotate: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta );\n\t\t\tvar s = Math.sin( theta );\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];\n\t\t\tvar a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];\n\n\t\t\tte[ 0 ] = c * a11 + s * a21;\n\t\t\tte[ 3 ] = c * a12 + s * a22;\n\t\t\tte[ 6 ] = c * a13 + s * a23;\n\n\t\t\tte[ 1 ] = - s * a11 + c * a21;\n\t\t\tte[ 4 ] = - s * a12 + c * a22;\n\t\t\tte[ 7 ] = - s * a13 + c * a23;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( tx, ty ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];\n\t\t\tte[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( matrix ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = matrix.elements;\n\n\t\t\tfor ( var i = 0; i < 9; i ++ ) {\n\n\t\t\t\tif ( te[ i ] !== me[ i ] ) return false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tfor ( var i = 0; i < 9; i ++ ) {\n\n\t\t\t\tthis.elements[ i ] = array[ i + offset ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tvar te = this.elements;\n\n\t\t\tarray[ offset ] = te[ 0 ];\n\t\t\tarray[ offset + 1 ] = te[ 1 ];\n\t\t\tarray[ offset + 2 ] = te[ 2 ];\n\n\t\t\tarray[ offset + 3 ] = te[ 3 ];\n\t\t\tarray[ offset + 4 ] = te[ 4 ];\n\t\t\tarray[ offset + 5 ] = te[ 5 ];\n\n\t\t\tarray[ offset + 6 ] = te[ 6 ];\n\t\t\tarray[ offset + 7 ] = te[ 7 ];\n\t\t\tarray[ offset + 8 ] = te[ 8 ];\n\n\t\t\treturn array;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t */\n\n\tvar ImageUtils = {\n\n\t\tgetDataURL: function ( image ) {\n\n\t\t\tvar canvas;\n\n\t\t\tif ( image instanceof HTMLCanvasElement ) {\n\n\t\t\t\tcanvas = image;\n\n\t\t\t} else {\n\n\t\t\t\tif ( typeof OffscreenCanvas !== 'undefined' ) {\n\n\t\t\t\t\tcanvas = new OffscreenCanvas( image.width, image.height );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcanvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\t\t\tcanvas.width = image.width;\n\t\t\t\t\tcanvas.height = image.height;\n\n\t\t\t\t}\n\n\t\t\t\tvar context = canvas.getContext( '2d' );\n\n\t\t\t\tif ( image instanceof ImageData ) {\n\n\t\t\t\t\tcontext.putImageData( image, 0, 0 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcontext.drawImage( image, 0, 0, image.width, image.height );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( canvas.width > 2048 || canvas.height > 2048 ) {\n\n\t\t\t\treturn canvas.toDataURL( 'image/jpeg', 0.6 );\n\n\t\t\t} else {\n\n\t\t\t\treturn canvas.toDataURL( 'image/png' );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t */\n\n\tvar textureId = 0;\n\n\tfunction Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {\n\n\t\tObject.defineProperty( this, 'id', { value: textureId ++ } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\n\t\tthis.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;\n\t\tthis.mipmaps = [];\n\n\t\tthis.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;\n\n\t\tthis.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;\n\t\tthis.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : LinearFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;\n\n\t\tthis.anisotropy = anisotropy !== undefined ? anisotropy : 1;\n\n\t\tthis.format = format !== undefined ? format : RGBAFormat;\n\t\tthis.type = type !== undefined ? type : UnsignedByteType;\n\n\t\tthis.offset = new Vector2( 0, 0 );\n\t\tthis.repeat = new Vector2( 1, 1 );\n\t\tthis.center = new Vector2( 0, 0 );\n\t\tthis.rotation = 0;\n\n\t\tthis.matrixAutoUpdate = true;\n\t\tthis.matrix = new Matrix3();\n\n\t\tthis.generateMipmaps = true;\n\t\tthis.premultiplyAlpha = false;\n\t\tthis.flipY = true;\n\t\tthis.unpackAlignment = 4;\t// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)\n\n\t\t// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.\n\t\t//\n\t\t// Also changing the encoding after already used by a Material will not automatically make the Material\n\t\t// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.\n\t\tthis.encoding = encoding !== undefined ? encoding : LinearEncoding;\n\n\t\tthis.version = 0;\n\t\tthis.onUpdate = null;\n\n\t}\n\n\tTexture.DEFAULT_IMAGE = undefined;\n\tTexture.DEFAULT_MAPPING = UVMapping;\n\n\tTexture.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Texture,\n\n\t\tisTexture: true,\n\n\t\tupdateMatrix: function () {\n\n\t\t\tthis.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.image = source.image;\n\t\t\tthis.mipmaps = source.mipmaps.slice( 0 );\n\n\t\t\tthis.mapping = source.mapping;\n\n\t\t\tthis.wrapS = source.wrapS;\n\t\t\tthis.wrapT = source.wrapT;\n\n\t\t\tthis.magFilter = source.magFilter;\n\t\t\tthis.minFilter = source.minFilter;\n\n\t\t\tthis.anisotropy = source.anisotropy;\n\n\t\t\tthis.format = source.format;\n\t\t\tthis.type = source.type;\n\n\t\t\tthis.offset.copy( source.offset );\n\t\t\tthis.repeat.copy( source.repeat );\n\t\t\tthis.center.copy( source.center );\n\t\t\tthis.rotation = source.rotation;\n\n\t\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\t\t\tthis.matrix.copy( source.matrix );\n\n\t\t\tthis.generateMipmaps = source.generateMipmaps;\n\t\t\tthis.premultiplyAlpha = source.premultiplyAlpha;\n\t\t\tthis.flipY = source.flipY;\n\t\t\tthis.unpackAlignment = source.unpackAlignment;\n\t\t\tthis.encoding = source.encoding;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar isRootObject = ( meta === undefined || typeof meta === 'string' );\n\n\t\t\tif ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {\n\n\t\t\t\treturn meta.textures[ this.uuid ];\n\n\t\t\t}\n\n\t\t\tvar output = {\n\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Texture',\n\t\t\t\t\tgenerator: 'Texture.toJSON'\n\t\t\t\t},\n\n\t\t\t\tuuid: this.uuid,\n\t\t\t\tname: this.name,\n\n\t\t\t\tmapping: this.mapping,\n\n\t\t\t\trepeat: [ this.repeat.x, this.repeat.y ],\n\t\t\t\toffset: [ this.offset.x, this.offset.y ],\n\t\t\t\tcenter: [ this.center.x, this.center.y ],\n\t\t\t\trotation: this.rotation,\n\n\t\t\t\twrap: [ this.wrapS, this.wrapT ],\n\n\t\t\t\tformat: this.format,\n\t\t\t\tminFilter: this.minFilter,\n\t\t\t\tmagFilter: this.magFilter,\n\t\t\t\tanisotropy: this.anisotropy,\n\n\t\t\t\tflipY: this.flipY\n\n\t\t\t};\n\n\t\t\tif ( this.image !== undefined ) {\n\n\t\t\t\t// TODO: Move to THREE.Image\n\n\t\t\t\tvar image = this.image;\n\n\t\t\t\tif ( image.uuid === undefined ) {\n\n\t\t\t\t\timage.uuid = _Math.generateUUID(); // UGH\n\n\t\t\t\t}\n\n\t\t\t\tif ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {\n\n\t\t\t\t\tvar url;\n\n\t\t\t\t\tif ( Array.isArray( image ) ) {\n\n\t\t\t\t\t\t// process array of images e.g. CubeTexture\n\n\t\t\t\t\t\turl = [];\n\n\t\t\t\t\t\tfor ( var i = 0, l = image.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\turl.push( ImageUtils.getDataURL( image[ i ] ) );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// process single image\n\n\t\t\t\t\t\turl = ImageUtils.getDataURL( image );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tmeta.images[ image.uuid ] = {\n\t\t\t\t\t\tuuid: image.uuid,\n\t\t\t\t\t\turl: url\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t\toutput.image = image.uuid;\n\n\t\t\t}\n\n\t\t\tif ( ! isRootObject ) {\n\n\t\t\t\tmeta.textures[ this.uuid ] = output;\n\n\t\t\t}\n\n\t\t\treturn output;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t},\n\n\t\ttransformUv: function ( uv ) {\n\n\t\t\tif ( this.mapping !== UVMapping ) return;\n\n\t\t\tuv.applyMatrix3( this.matrix );\n\n\t\t\tif ( uv.x < 0 || uv.x > 1 ) {\n\n\t\t\t\tswitch ( this.wrapS ) {\n\n\t\t\t\t\tcase RepeatWrapping:\n\n\t\t\t\t\t\tuv.x = uv.x - Math.floor( uv.x );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase ClampToEdgeWrapping:\n\n\t\t\t\t\t\tuv.x = uv.x < 0 ? 0 : 1;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase MirroredRepeatWrapping:\n\n\t\t\t\t\t\tif ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {\n\n\t\t\t\t\t\t\tuv.x = Math.ceil( uv.x ) - uv.x;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tuv.x = uv.x - Math.floor( uv.x );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( uv.y < 0 || uv.y > 1 ) {\n\n\t\t\t\tswitch ( this.wrapT ) {\n\n\t\t\t\t\tcase RepeatWrapping:\n\n\t\t\t\t\t\tuv.y = uv.y - Math.floor( uv.y );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase ClampToEdgeWrapping:\n\n\t\t\t\t\t\tuv.y = uv.y < 0 ? 0 : 1;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase MirroredRepeatWrapping:\n\n\t\t\t\t\t\tif ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {\n\n\t\t\t\t\t\t\tuv.y = Math.ceil( uv.y ) - uv.y;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tuv.y = uv.y - Math.floor( uv.y );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.flipY ) {\n\n\t\t\t\tuv.y = 1 - uv.y;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperty( Texture.prototype, \"needsUpdate\", {\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author egraether / http://egraether.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Vector4( x, y, z, w ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\t\tthis.z = z || 0;\n\t\tthis.w = ( w !== undefined ) ? w : 1;\n\n\t}\n\n\tObject.assign( Vector4.prototype, {\n\n\t\tisVector4: true,\n\n\t\tset: function ( x, y, z, w ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\t\t\tthis.z = z;\n\t\t\tthis.w = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\t\t\tthis.z = scalar;\n\t\t\tthis.w = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( z ) {\n\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetW: function ( w ) {\n\n\t\t\tthis.w = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tcase 2: this.z = value; break;\n\t\t\t\tcase 3: this.w = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tcase 2: return this.z;\n\t\t\t\tcase 3: return this.w;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y, this.z, this.w );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\t\t\tthis.z = v.z;\n\t\t\tthis.w = ( v.w !== undefined ) ? v.w : 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\t\t\tthis.z += v.z;\n\t\t\tthis.w += v.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\t\t\tthis.z += s;\n\t\t\tthis.w += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\t\t\tthis.z = a.z + b.z;\n\t\t\tthis.w = a.w + b.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\t\t\tthis.z += v.z * s;\n\t\t\tthis.w += v.w * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\t\t\tthis.z -= v.z;\n\t\t\tthis.w -= v.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\t\t\tthis.z -= s;\n\t\t\tthis.w -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\t\t\tthis.z = a.z - b.z;\n\t\t\tthis.w = a.w - b.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tthis.x *= scalar;\n\t\t\tthis.y *= scalar;\n\t\t\tthis.z *= scalar;\n\t\t\tthis.w *= scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z, w = this.w;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;\n\t\t\tthis.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;\n\t\t\tthis.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;\n\t\t\tthis.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tsetAxisAngleFromQuaternion: function ( q ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm\n\n\t\t\t// q is assumed to be normalized\n\n\t\t\tthis.w = 2 * Math.acos( q.w );\n\n\t\t\tvar s = Math.sqrt( 1 - q.w * q.w );\n\n\t\t\tif ( s < 0.0001 ) {\n\n\t\t\t\tthis.x = 1;\n\t\t\t\tthis.y = 0;\n\t\t\t\tthis.z = 0;\n\n\t\t\t} else {\n\n\t\t\t\tthis.x = q.x / s;\n\t\t\t\tthis.y = q.y / s;\n\t\t\t\tthis.z = q.z / s;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetAxisAngleFromRotationMatrix: function ( m ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar angle, x, y, z,\t\t// variables for result\n\t\t\t\tepsilon = 0.01,\t\t// margin to allow for rounding errors\n\t\t\t\tepsilon2 = 0.1,\t\t// margin to distinguish between 0 and 180 degrees\n\n\t\t\t\tte = m.elements,\n\n\t\t\t\tm11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],\n\t\t\t\tm21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],\n\t\t\t\tm31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];\n\n\t\t\tif ( ( Math.abs( m12 - m21 ) < epsilon ) &&\n\t\t\t ( Math.abs( m13 - m31 ) < epsilon ) &&\n\t\t\t ( Math.abs( m23 - m32 ) < epsilon ) ) {\n\n\t\t\t\t// singularity found\n\t\t\t\t// first check for identity matrix which must have +1 for all terms\n\t\t\t\t// in leading diagonal and zero in other terms\n\n\t\t\t\tif ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m13 + m31 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m23 + m32 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {\n\n\t\t\t\t\t// this singularity is identity matrix so angle = 0\n\n\t\t\t\t\tthis.set( 1, 0, 0, 0 );\n\n\t\t\t\t\treturn this; // zero angle, arbitrary axis\n\n\t\t\t\t}\n\n\t\t\t\t// otherwise this singularity is angle = 180\n\n\t\t\t\tangle = Math.PI;\n\n\t\t\t\tvar xx = ( m11 + 1 ) / 2;\n\t\t\t\tvar yy = ( m22 + 1 ) / 2;\n\t\t\t\tvar zz = ( m33 + 1 ) / 2;\n\t\t\t\tvar xy = ( m12 + m21 ) / 4;\n\t\t\t\tvar xz = ( m13 + m31 ) / 4;\n\t\t\t\tvar yz = ( m23 + m32 ) / 4;\n\n\t\t\t\tif ( ( xx > yy ) && ( xx > zz ) ) {\n\n\t\t\t\t\t// m11 is the largest diagonal term\n\n\t\t\t\t\tif ( xx < epsilon ) {\n\n\t\t\t\t\t\tx = 0;\n\t\t\t\t\t\ty = 0.707106781;\n\t\t\t\t\t\tz = 0.707106781;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tx = Math.sqrt( xx );\n\t\t\t\t\t\ty = xy / x;\n\t\t\t\t\t\tz = xz / x;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( yy > zz ) {\n\n\t\t\t\t\t// m22 is the largest diagonal term\n\n\t\t\t\t\tif ( yy < epsilon ) {\n\n\t\t\t\t\t\tx = 0.707106781;\n\t\t\t\t\t\ty = 0;\n\t\t\t\t\t\tz = 0.707106781;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ty = Math.sqrt( yy );\n\t\t\t\t\t\tx = xy / y;\n\t\t\t\t\t\tz = yz / y;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// m33 is the largest diagonal term so base result on this\n\n\t\t\t\t\tif ( zz < epsilon ) {\n\n\t\t\t\t\t\tx = 0.707106781;\n\t\t\t\t\t\ty = 0.707106781;\n\t\t\t\t\t\tz = 0;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tz = Math.sqrt( zz );\n\t\t\t\t\t\tx = xz / z;\n\t\t\t\t\t\ty = yz / z;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.set( x, y, z, angle );\n\n\t\t\t\treturn this; // return 180 deg rotation\n\n\t\t\t}\n\n\t\t\t// as we have reached here there are no singularities so we can handle normally\n\n\t\t\tvar s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +\n\t\t\t ( m13 - m31 ) * ( m13 - m31 ) +\n\t\t\t ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize\n\n\t\t\tif ( Math.abs( s ) < 0.001 ) s = 1;\n\n\t\t\t// prevent divide by zero, should not happen if matrix is orthogonal and should be\n\t\t\t// caught by singularity test above, but I've left it in just in case\n\n\t\t\tthis.x = ( m32 - m23 ) / s;\n\t\t\tthis.y = ( m13 - m31 ) / s;\n\t\t\tthis.z = ( m21 - m12 ) / s;\n\t\t\tthis.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\t\t\tthis.z = Math.min( this.z, v.z );\n\t\t\tthis.w = Math.min( this.w, v.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\t\t\tthis.z = Math.max( this.z, v.z );\n\t\t\tthis.w = Math.max( this.w, v.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// assumes min < max, componentwise\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\t\t\tthis.z = Math.max( min.z, Math.min( max.z, this.z ) );\n\t\t\tthis.w = Math.max( min.w, Math.min( max.w, this.w ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min, max;\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tif ( min === undefined ) {\n\n\t\t\t\t\tmin = new Vector4();\n\t\t\t\t\tmax = new Vector4();\n\n\t\t\t\t}\n\n\t\t\t\tmin.set( minVal, minVal, minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal, maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\t\t\tthis.z = Math.floor( this.z );\n\t\t\tthis.w = Math.floor( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\t\t\tthis.z = Math.ceil( this.z );\n\t\t\tthis.w = Math.ceil( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\t\t\tthis.z = Math.round( this.z );\n\t\t\tthis.w = Math.round( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\t\t\tthis.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );\n\t\t\tthis.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\t\t\tthis.z = - this.z;\n\t\t\tthis.w = - this.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );\n\n\t\t},\n\n\t\tmanhattanLength: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() || 1 );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.normalize().multiplyScalar( length );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\t\t\tthis.z += ( v.z - this.z ) * alpha;\n\t\t\tthis.w += ( v.w - this.w ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\t\t\tthis.z = array[ offset + 2 ];\n\t\t\tthis.w = array[ offset + 3 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\t\t\tarray[ offset + 2 ] = this.z;\n\t\t\tarray[ offset + 3 ] = this.w;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromBufferAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );\n\n\t\t\t}\n\n\t\t\tthis.x = attribute.getX( index );\n\t\t\tthis.y = attribute.getY( index );\n\t\t\tthis.z = attribute.getZ( index );\n\t\t\tthis.w = attribute.getW( index );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author szimek / https://github.com/szimek/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author Marius Kintel / https://github.com/kintel\n\t */\n\n\t/*\n\t In options, we can specify:\n\t * Texture parameters for an auto-generated target texture\n\t * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers\n\t*/\n\tfunction WebGLRenderTarget( width, height, options ) {\n\n\t\tthis.width = width;\n\t\tthis.height = height;\n\n\t\tthis.scissor = new Vector4( 0, 0, width, height );\n\t\tthis.scissorTest = false;\n\n\t\tthis.viewport = new Vector4( 0, 0, width, height );\n\n\t\toptions = options || {};\n\n\t\tif ( options.minFilter === undefined ) options.minFilter = LinearFilter;\n\n\t\tthis.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );\n\n\t\tthis.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : true;\n\n\t\tthis.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;\n\t\tthis.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;\n\t\tthis.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;\n\n\t}\n\n\tWebGLRenderTarget.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: WebGLRenderTarget,\n\n\t\tisWebGLRenderTarget: true,\n\n\t\tsetSize: function ( width, height ) {\n\n\t\t\tif ( this.width !== width || this.height !== height ) {\n\n\t\t\t\tthis.width = width;\n\t\t\t\tthis.height = height;\n\n\t\t\t\tthis.dispose();\n\n\t\t\t}\n\n\t\t\tthis.viewport.set( 0, 0, width, height );\n\t\t\tthis.scissor.set( 0, 0, width, height );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.width = source.width;\n\t\t\tthis.height = source.height;\n\n\t\t\tthis.viewport.copy( source.viewport );\n\n\t\t\tthis.texture = source.texture.clone();\n\n\t\t\tthis.depthBuffer = source.depthBuffer;\n\t\t\tthis.stencilBuffer = source.stencilBuffer;\n\t\t\tthis.depthTexture = source.depthTexture;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com\n\t */\n\n\tfunction WebGLRenderTargetCube( width, height, options ) {\n\n\t\tWebGLRenderTarget.call( this, width, height, options );\n\n\t\tthis.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5\n\t\tthis.activeMipMapLevel = 0;\n\n\t}\n\n\tWebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );\n\tWebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;\n\n\tWebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.image = { data: data, width: width, height: height };\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : NearestFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : NearestFilter;\n\n\t\tthis.generateMipmaps = false;\n\t\tthis.flipY = false;\n\t\tthis.unpackAlignment = 1;\n\n\t}\n\n\tDataTexture.prototype = Object.create( Texture.prototype );\n\tDataTexture.prototype.constructor = DataTexture;\n\n\tDataTexture.prototype.isDataTexture = true;\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Box3( min, max ) {\n\n\t\tthis.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );\n\t\tthis.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );\n\n\t}\n\n\tObject.assign( Box3.prototype, {\n\n\t\tisBox3: true,\n\n\t\tset: function ( min, max ) {\n\n\t\t\tthis.min.copy( min );\n\t\t\tthis.max.copy( max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromArray: function ( array ) {\n\n\t\t\tvar minX = + Infinity;\n\t\t\tvar minY = + Infinity;\n\t\t\tvar minZ = + Infinity;\n\n\t\t\tvar maxX = - Infinity;\n\t\t\tvar maxY = - Infinity;\n\t\t\tvar maxZ = - Infinity;\n\n\t\t\tfor ( var i = 0, l = array.length; i < l; i += 3 ) {\n\n\t\t\t\tvar x = array[ i ];\n\t\t\t\tvar y = array[ i + 1 ];\n\t\t\t\tvar z = array[ i + 2 ];\n\n\t\t\t\tif ( x < minX ) minX = x;\n\t\t\t\tif ( y < minY ) minY = y;\n\t\t\t\tif ( z < minZ ) minZ = z;\n\n\t\t\t\tif ( x > maxX ) maxX = x;\n\t\t\t\tif ( y > maxY ) maxY = y;\n\t\t\t\tif ( z > maxZ ) maxZ = z;\n\n\t\t\t}\n\n\t\t\tthis.min.set( minX, minY, minZ );\n\t\t\tthis.max.set( maxX, maxY, maxZ );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromBufferAttribute: function ( attribute ) {\n\n\t\t\tvar minX = + Infinity;\n\t\t\tvar minY = + Infinity;\n\t\t\tvar minZ = + Infinity;\n\n\t\t\tvar maxX = - Infinity;\n\t\t\tvar maxY = - Infinity;\n\t\t\tvar maxZ = - Infinity;\n\n\t\t\tfor ( var i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\tvar x = attribute.getX( i );\n\t\t\t\tvar y = attribute.getY( i );\n\t\t\t\tvar z = attribute.getZ( i );\n\n\t\t\t\tif ( x < minX ) minX = x;\n\t\t\t\tif ( y < minY ) minY = y;\n\t\t\t\tif ( z < minZ ) minZ = z;\n\n\t\t\t\tif ( x > maxX ) maxX = x;\n\t\t\t\tif ( y > maxY ) maxY = y;\n\t\t\t\tif ( z > maxZ ) maxZ = z;\n\n\t\t\t}\n\n\t\t\tthis.min.set( minX, minY, minZ );\n\t\t\tthis.max.set( maxX, maxY, maxZ );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\tthis.expandByPoint( points[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCenterAndSize: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function setFromCenterAndSize( center, size ) {\n\n\t\t\t\tvar halfSize = v1.copy( size ).multiplyScalar( 0.5 );\n\n\t\t\t\tthis.min.copy( center ).sub( halfSize );\n\t\t\t\tthis.max.copy( center ).add( halfSize );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromObject: function ( object ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\treturn this.expandByObject( object );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( box ) {\n\n\t\t\tthis.min.copy( box.min );\n\t\t\tthis.max.copy( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeEmpty: function () {\n\n\t\t\tthis.min.x = this.min.y = this.min.z = + Infinity;\n\t\t\tthis.max.x = this.max.y = this.max.z = - Infinity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tisEmpty: function () {\n\n\t\t\t// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes\n\n\t\t\treturn ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );\n\n\t\t},\n\n\t\tgetCenter: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .getCenter() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tgetSize: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .getSize() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min );\n\n\t\t},\n\n\t\texpandByPoint: function ( point ) {\n\n\t\t\tthis.min.min( point );\n\t\t\tthis.max.max( point );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByVector: function ( vector ) {\n\n\t\t\tthis.min.sub( vector );\n\t\t\tthis.max.add( vector );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByScalar: function ( scalar ) {\n\n\t\t\tthis.min.addScalar( - scalar );\n\t\t\tthis.max.addScalar( scalar );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByObject: function () {\n\n\t\t\t// Computes the world-axis-aligned bounding box of an object (including its children),\n\t\t\t// accounting for both the object's, and children's, world transforms\n\n\t\t\tvar scope, i, l;\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\tfunction traverse( node ) {\n\n\t\t\t\tvar geometry = node.geometry;\n\n\t\t\t\tif ( geometry !== undefined ) {\n\n\t\t\t\t\tif ( geometry.isGeometry ) {\n\n\t\t\t\t\t\tvar vertices = geometry.vertices;\n\n\t\t\t\t\t\tfor ( i = 0, l = vertices.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tv1.copy( vertices[ i ] );\n\t\t\t\t\t\t\tv1.applyMatrix4( node.matrixWorld );\n\n\t\t\t\t\t\t\tscope.expandByPoint( v1 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\t\tvar attribute = geometry.attributes.position;\n\n\t\t\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\t\t\tfor ( i = 0, l = attribute.count; i < l; i ++ ) {\n\n\t\t\t\t\t\t\t\tv1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );\n\n\t\t\t\t\t\t\t\tscope.expandByPoint( v1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn function expandByObject( object ) {\n\n\t\t\t\tscope = this;\n\n\t\t\t\tobject.updateMatrixWorld( true );\n\n\t\t\t\tobject.traverse( traverse );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn point.x < this.min.x || point.x > this.max.x ||\n\t\t\t\tpoint.y < this.min.y || point.y > this.max.y ||\n\t\t\t\tpoint.z < this.min.z || point.z > this.max.z ? false : true;\n\n\t\t},\n\n\t\tcontainsBox: function ( box ) {\n\n\t\t\treturn this.min.x <= box.min.x && box.max.x <= this.max.x &&\n\t\t\t\tthis.min.y <= box.min.y && box.max.y <= this.max.y &&\n\t\t\t\tthis.min.z <= box.min.z && box.max.z <= this.max.z;\n\n\t\t},\n\n\t\tgetParameter: function ( point, target ) {\n\n\t\t\t// This can potentially have a divide by zero if the box\n\t\t\t// has a size dimension of 0.\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .getParameter() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.set(\n\t\t\t\t( point.x - this.min.x ) / ( this.max.x - this.min.x ),\n\t\t\t\t( point.y - this.min.y ) / ( this.max.y - this.min.y ),\n\t\t\t\t( point.z - this.min.z ) / ( this.max.z - this.min.z )\n\t\t\t);\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\t// using 6 splitting planes to rule out intersections.\n\t\t\treturn box.max.x < this.min.x || box.min.x > this.max.x ||\n\t\t\t\tbox.max.y < this.min.y || box.min.y > this.max.y ||\n\t\t\t\tbox.max.z < this.min.z || box.min.z > this.max.z ? false : true;\n\n\t\t},\n\n\t\tintersectsSphere: ( function () {\n\n\t\t\tvar closestPoint = new Vector3();\n\n\t\t\treturn function intersectsSphere( sphere ) {\n\n\t\t\t\t// Find the point on the AABB closest to the sphere center.\n\t\t\t\tthis.clampPoint( sphere.center, closestPoint );\n\n\t\t\t\t// If that point is inside the sphere, the AABB and sphere intersect.\n\t\t\t\treturn closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\t// We compute the minimum and maximum dot product values. If those values\n\t\t\t// are on the same side (back or front) of the plane, then there is no intersection.\n\n\t\t\tvar min, max;\n\n\t\t\tif ( plane.normal.x > 0 ) {\n\n\t\t\t\tmin = plane.normal.x * this.min.x;\n\t\t\t\tmax = plane.normal.x * this.max.x;\n\n\t\t\t} else {\n\n\t\t\t\tmin = plane.normal.x * this.max.x;\n\t\t\t\tmax = plane.normal.x * this.min.x;\n\n\t\t\t}\n\n\t\t\tif ( plane.normal.y > 0 ) {\n\n\t\t\t\tmin += plane.normal.y * this.min.y;\n\t\t\t\tmax += plane.normal.y * this.max.y;\n\n\t\t\t} else {\n\n\t\t\t\tmin += plane.normal.y * this.max.y;\n\t\t\t\tmax += plane.normal.y * this.min.y;\n\n\t\t\t}\n\n\t\t\tif ( plane.normal.z > 0 ) {\n\n\t\t\t\tmin += plane.normal.z * this.min.z;\n\t\t\t\tmax += plane.normal.z * this.max.z;\n\n\t\t\t} else {\n\n\t\t\t\tmin += plane.normal.z * this.max.z;\n\t\t\t\tmax += plane.normal.z * this.min.z;\n\n\t\t\t}\n\n\t\t\treturn ( min <= plane.constant && max >= plane.constant );\n\n\t\t},\n\n\t\tintersectsTriangle: ( function () {\n\n\t\t\t// triangle centered vertices\n\t\t\tvar v0 = new Vector3();\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\t// triangle edge vectors\n\t\t\tvar f0 = new Vector3();\n\t\t\tvar f1 = new Vector3();\n\t\t\tvar f2 = new Vector3();\n\n\t\t\tvar testAxis = new Vector3();\n\n\t\t\tvar center = new Vector3();\n\t\t\tvar extents = new Vector3();\n\n\t\t\tvar triangleNormal = new Vector3();\n\n\t\t\tfunction satForAxes( axes ) {\n\n\t\t\t\tvar i, j;\n\n\t\t\t\tfor ( i = 0, j = axes.length - 3; i <= j; i += 3 ) {\n\n\t\t\t\t\ttestAxis.fromArray( axes, i );\n\t\t\t\t\t// project the aabb onto the seperating axis\n\t\t\t\t\tvar r = extents.x * Math.abs( testAxis.x ) + extents.y * Math.abs( testAxis.y ) + extents.z * Math.abs( testAxis.z );\n\t\t\t\t\t// project all 3 vertices of the triangle onto the seperating axis\n\t\t\t\t\tvar p0 = v0.dot( testAxis );\n\t\t\t\t\tvar p1 = v1.dot( testAxis );\n\t\t\t\t\tvar p2 = v2.dot( testAxis );\n\t\t\t\t\t// actual test, basically see if either of the most extreme of the triangle points intersects r\n\t\t\t\t\tif ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {\n\n\t\t\t\t\t\t// points of the projected triangle are outside the projected half-length of the aabb\n\t\t\t\t\t\t// the axis is seperating and we can exit\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\treturn function intersectsTriangle( triangle ) {\n\n\t\t\t\tif ( this.isEmpty() ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t\t// compute box center and extents\n\t\t\t\tthis.getCenter( center );\n\t\t\t\textents.subVectors( this.max, center );\n\n\t\t\t\t// translate triangle to aabb origin\n\t\t\t\tv0.subVectors( triangle.a, center );\n\t\t\t\tv1.subVectors( triangle.b, center );\n\t\t\t\tv2.subVectors( triangle.c, center );\n\n\t\t\t\t// compute edge vectors for triangle\n\t\t\t\tf0.subVectors( v1, v0 );\n\t\t\t\tf1.subVectors( v2, v1 );\n\t\t\t\tf2.subVectors( v0, v2 );\n\n\t\t\t\t// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb\n\t\t\t\t// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation\n\t\t\t\t// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)\n\t\t\t\tvar axes = [\n\t\t\t\t\t0, - f0.z, f0.y, 0, - f1.z, f1.y, 0, - f2.z, f2.y,\n\t\t\t\t\tf0.z, 0, - f0.x, f1.z, 0, - f1.x, f2.z, 0, - f2.x,\n\t\t\t\t\t- f0.y, f0.x, 0, - f1.y, f1.x, 0, - f2.y, f2.x, 0\n\t\t\t\t];\n\t\t\t\tif ( ! satForAxes( axes ) ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t\t// test 3 face normals from the aabb\n\t\t\t\taxes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];\n\t\t\t\tif ( ! satForAxes( axes ) ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t\t// finally testing the face normal of the triangle\n\t\t\t\t// use already existing triangle edge vectors here\n\t\t\t\ttriangleNormal.crossVectors( f0, f1 );\n\t\t\t\taxes = [ triangleNormal.x, triangleNormal.y, triangleNormal.z ];\n\t\t\t\treturn satForAxes( axes );\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tclampPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box3: .clampPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( point ).clamp( this.min, this.max );\n\n\t\t},\n\n\t\tdistanceToPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function distanceToPoint( point ) {\n\n\t\t\t\tvar clampedPoint = v1.copy( point ).clamp( this.min, this.max );\n\t\t\t\treturn clampedPoint.sub( point ).length();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetBoundingSphere: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function getBoundingSphere( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Box3: .getBoundingSphere() target is now required' );\n\t\t\t\t\ttarget = new Sphere();\n\n\t\t\t\t}\n\n\t\t\t\tthis.getCenter( target.center );\n\n\t\t\t\ttarget.radius = this.getSize( v1 ).length() * 0.5;\n\n\t\t\t\treturn target;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersect: function ( box ) {\n\n\t\t\tthis.min.max( box.min );\n\t\t\tthis.max.min( box.max );\n\n\t\t\t// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.\n\t\t\tif ( this.isEmpty() ) this.makeEmpty();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tunion: function ( box ) {\n\n\t\t\tthis.min.min( box.min );\n\t\t\tthis.max.max( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\t// transform of empty box is an empty box.\n\t\t\tif ( this.isEmpty( ) ) return this;\n\n\t\t\tvar m = matrix.elements;\n\n\t\t\tvar xax = m[ 0 ] * this.min.x, xay = m[ 1 ] * this.min.x, xaz = m[ 2 ] * this.min.x;\n\t\t\tvar xbx = m[ 0 ] * this.max.x, xby = m[ 1 ] * this.max.x, xbz = m[ 2 ] * this.max.x;\n\t\t\tvar yax = m[ 4 ] * this.min.y, yay = m[ 5 ] * this.min.y, yaz = m[ 6 ] * this.min.y;\n\t\t\tvar ybx = m[ 4 ] * this.max.y, yby = m[ 5 ] * this.max.y, ybz = m[ 6 ] * this.max.y;\n\t\t\tvar zax = m[ 8 ] * this.min.z, zay = m[ 9 ] * this.min.z, zaz = m[ 10 ] * this.min.z;\n\t\t\tvar zbx = m[ 8 ] * this.max.z, zby = m[ 9 ] * this.max.z, zbz = m[ 10 ] * this.max.z;\n\n\t\t\tthis.min.x = Math.min( xax, xbx ) + Math.min( yax, ybx ) + Math.min( zax, zbx ) + m[ 12 ];\n\t\t\tthis.min.y = Math.min( xay, xby ) + Math.min( yay, yby ) + Math.min( zay, zby ) + m[ 13 ];\n\t\t\tthis.min.z = Math.min( xaz, xbz ) + Math.min( yaz, ybz ) + Math.min( zaz, zbz ) + m[ 14 ];\n\t\t\tthis.max.x = Math.max( xax, xbx ) + Math.max( yax, ybx ) + Math.max( zax, zbx ) + m[ 12 ];\n\t\t\tthis.max.y = Math.max( xay, xby ) + Math.max( yay, yby ) + Math.max( zay, zby ) + m[ 13 ];\n\t\t\tthis.max.z = Math.max( xaz, xbz ) + Math.max( yaz, ybz ) + Math.max( zaz, zbz ) + m[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.min.add( offset );\n\t\t\tthis.max.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( box ) {\n\n\t\t\treturn box.min.equals( this.min ) && box.max.equals( this.max );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Sphere( center, radius ) {\n\n\t\tthis.center = ( center !== undefined ) ? center : new Vector3();\n\t\tthis.radius = ( radius !== undefined ) ? radius : 0;\n\n\t}\n\n\tObject.assign( Sphere.prototype, {\n\n\t\tset: function ( center, radius ) {\n\n\t\t\tthis.center.copy( center );\n\t\t\tthis.radius = radius;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function () {\n\n\t\t\tvar box = new Box3();\n\n\t\t\treturn function setFromPoints( points, optionalCenter ) {\n\n\t\t\t\tvar center = this.center;\n\n\t\t\t\tif ( optionalCenter !== undefined ) {\n\n\t\t\t\t\tcenter.copy( optionalCenter );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tbox.setFromPoints( points ).getCenter( center );\n\n\t\t\t\t}\n\n\t\t\t\tvar maxRadiusSq = 0;\n\n\t\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\t\tmaxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tthis.radius = Math.sqrt( maxRadiusSq );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( sphere ) {\n\n\t\t\tthis.center.copy( sphere.center );\n\t\t\tthis.radius = sphere.radius;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tempty: function () {\n\n\t\t\treturn ( this.radius <= 0 );\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn ( point.distanceTo( this.center ) - this.radius );\n\n\t\t},\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\tvar radiusSum = this.radius + sphere.radius;\n\n\t\t\treturn sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsSphere( this );\n\n\t\t},\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\treturn Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;\n\n\t\t},\n\n\t\tclampPoint: function ( point, target ) {\n\n\t\t\tvar deltaLengthSq = this.center.distanceToSquared( point );\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Sphere: .clampPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\ttarget.copy( point );\n\n\t\t\tif ( deltaLengthSq > ( this.radius * this.radius ) ) {\n\n\t\t\t\ttarget.sub( this.center ).normalize();\n\t\t\t\ttarget.multiplyScalar( this.radius ).add( this.center );\n\n\t\t\t}\n\n\t\t\treturn target;\n\n\t\t},\n\n\t\tgetBoundingBox: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Sphere: .getBoundingBox() target is now required' );\n\t\t\t\ttarget = new Box3();\n\n\t\t\t}\n\n\t\t\ttarget.set( this.center, this.center );\n\t\t\ttarget.expandByScalar( this.radius );\n\n\t\t\treturn target;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\tthis.center.applyMatrix4( matrix );\n\t\t\tthis.radius = this.radius * matrix.getMaxScaleOnAxis();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.center.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( sphere ) {\n\n\t\t\treturn sphere.center.equals( this.center ) && ( sphere.radius === this.radius );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Plane( normal, constant ) {\n\n\t\t// normal is assumed to be normalized\n\n\t\tthis.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );\n\t\tthis.constant = ( constant !== undefined ) ? constant : 0;\n\n\t}\n\n\tObject.assign( Plane.prototype, {\n\n\t\tset: function ( normal, constant ) {\n\n\t\t\tthis.normal.copy( normal );\n\t\t\tthis.constant = constant;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponents: function ( x, y, z, w ) {\n\n\t\t\tthis.normal.set( x, y, z );\n\t\t\tthis.constant = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromNormalAndCoplanarPoint: function ( normal, point ) {\n\n\t\t\tthis.normal.copy( normal );\n\t\t\tthis.constant = - point.dot( this.normal );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCoplanarPoints: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function setFromCoplanarPoints( a, b, c ) {\n\n\t\t\t\tvar normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();\n\n\t\t\t\t// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?\n\n\t\t\t\tthis.setFromNormalAndCoplanarPoint( normal, a );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( plane ) {\n\n\t\t\tthis.normal.copy( plane.normal );\n\t\t\tthis.constant = plane.constant;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\t// Note: will lead to a divide by zero if the plane is invalid.\n\n\t\t\tvar inverseNormalLength = 1.0 / this.normal.length();\n\t\t\tthis.normal.multiplyScalar( inverseNormalLength );\n\t\t\tthis.constant *= inverseNormalLength;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.constant *= - 1;\n\t\t\tthis.normal.negate();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn this.normal.dot( point ) + this.constant;\n\n\t\t},\n\n\t\tdistanceToSphere: function ( sphere ) {\n\n\t\t\treturn this.distanceToPoint( sphere.center ) - sphere.radius;\n\n\t\t},\n\n\t\tprojectPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Plane: .projectPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );\n\n\t\t},\n\n\t\tintersectLine: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function intersectLine( line, target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Plane: .intersectLine() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tvar direction = line.delta( v1 );\n\n\t\t\t\tvar denominator = this.normal.dot( direction );\n\n\t\t\t\tif ( denominator === 0 ) {\n\n\t\t\t\t\t// line is coplanar, return origin\n\t\t\t\t\tif ( this.distanceToPoint( line.start ) === 0 ) {\n\n\t\t\t\t\t\treturn target.copy( line.start );\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Unsure if this is the correct method to handle this case.\n\t\t\t\t\treturn undefined;\n\n\t\t\t\t}\n\n\t\t\t\tvar t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;\n\n\t\t\t\tif ( t < 0 || t > 1 ) {\n\n\t\t\t\t\treturn undefined;\n\n\t\t\t\t}\n\n\t\t\t\treturn target.copy( direction ).multiplyScalar( t ).add( line.start );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsLine: function ( line ) {\n\n\t\t\t// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.\n\n\t\t\tvar startSign = this.distanceToPoint( line.start );\n\t\t\tvar endSign = this.distanceToPoint( line.end );\n\n\t\t\treturn ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsPlane( this );\n\n\t\t},\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\treturn sphere.intersectsPlane( this );\n\n\t\t},\n\n\t\tcoplanarPoint: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Plane: .coplanarPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.normal ).multiplyScalar( - this.constant );\n\n\t\t},\n\n\t\tapplyMatrix4: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar m1 = new Matrix3();\n\n\t\t\treturn function applyMatrix4( matrix, optionalNormalMatrix ) {\n\n\t\t\t\tvar normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );\n\n\t\t\t\tvar referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );\n\n\t\t\t\tvar normal = this.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\tthis.constant = - referencePoint.dot( normal );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.constant -= offset.dot( this.normal );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( plane ) {\n\n\t\t\treturn plane.normal.equals( this.normal ) && ( plane.constant === this.constant );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Frustum( p0, p1, p2, p3, p4, p5 ) {\n\n\t\tthis.planes = [\n\n\t\t\t( p0 !== undefined ) ? p0 : new Plane(),\n\t\t\t( p1 !== undefined ) ? p1 : new Plane(),\n\t\t\t( p2 !== undefined ) ? p2 : new Plane(),\n\t\t\t( p3 !== undefined ) ? p3 : new Plane(),\n\t\t\t( p4 !== undefined ) ? p4 : new Plane(),\n\t\t\t( p5 !== undefined ) ? p5 : new Plane()\n\n\t\t];\n\n\t}\n\n\tObject.assign( Frustum.prototype, {\n\n\t\tset: function ( p0, p1, p2, p3, p4, p5 ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tplanes[ 0 ].copy( p0 );\n\t\t\tplanes[ 1 ].copy( p1 );\n\t\t\tplanes[ 2 ].copy( p2 );\n\t\t\tplanes[ 3 ].copy( p3 );\n\t\t\tplanes[ 4 ].copy( p4 );\n\t\t\tplanes[ 5 ].copy( p5 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( frustum ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tplanes[ i ].copy( frustum.planes[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrix: function ( m ) {\n\n\t\t\tvar planes = this.planes;\n\t\t\tvar me = m.elements;\n\t\t\tvar me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];\n\t\t\tvar me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];\n\t\t\tvar me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];\n\t\t\tvar me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];\n\n\t\t\tplanes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();\n\t\t\tplanes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();\n\t\t\tplanes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();\n\t\t\tplanes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();\n\t\t\tplanes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();\n\t\t\tplanes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tintersectsObject: function () {\n\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function intersectsObject( object ) {\n\n\t\t\t\tvar geometry = object.geometry;\n\n\t\t\t\tif ( geometry.boundingSphere === null )\n\t\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere )\n\t\t\t\t\t.applyMatrix4( object.matrixWorld );\n\n\t\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSprite: function () {\n\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function intersectsSprite( sprite ) {\n\n\t\t\t\tsphere.center.set( 0, 0, 0 );\n\t\t\t\tsphere.radius = 0.7071067811865476;\n\t\t\t\tsphere.applyMatrix4( sprite.matrixWorld );\n\n\t\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\tvar planes = this.planes;\n\t\t\tvar center = sphere.center;\n\t\t\tvar negRadius = - sphere.radius;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tvar distance = planes[ i ].distanceToPoint( center );\n\n\t\t\t\tif ( distance < negRadius ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tintersectsBox: function () {\n\n\t\t\tvar p = new Vector3();\n\n\t\t\treturn function intersectsBox( box ) {\n\n\t\t\t\tvar planes = this.planes;\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\tvar plane = planes[ i ];\n\n\t\t\t\t\t// corner at max distance\n\n\t\t\t\t\tp.x = plane.normal.x > 0 ? box.max.x : box.min.x;\n\t\t\t\t\tp.y = plane.normal.y > 0 ? box.max.y : box.min.y;\n\t\t\t\t\tp.z = plane.normal.z > 0 ? box.max.z : box.min.z;\n\n\t\t\t\t\tif ( plane.distanceToPoint( p ) < 0 ) {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tif ( planes[ i ].distanceToPoint( point ) < 0 ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t}\n\n\t} );\n\n\tvar alphamap_fragment = \"#ifdef USE_ALPHAMAP\\n\\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\\n#endif\\n\";\n\n\tvar alphamap_pars_fragment = \"#ifdef USE_ALPHAMAP\\n\\tuniform sampler2D alphaMap;\\n#endif\\n\";\n\n\tvar alphatest_fragment = \"#ifdef ALPHATEST\\n\\tif ( diffuseColor.a < ALPHATEST ) discard;\\n#endif\\n\";\n\n\tvar aomap_fragment = \"#ifdef USE_AOMAP\\n\\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\\n\\treflectedLight.indirectDiffuse *= ambientOcclusion;\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\\n\\t#endif\\n#endif\\n\";\n\n\tvar aomap_pars_fragment = \"#ifdef USE_AOMAP\\n\\tuniform sampler2D aoMap;\\n\\tuniform float aoMapIntensity;\\n#endif\";\n\n\tvar begin_vertex = \"\\nvec3 transformed = vec3( position );\\n\";\n\n\tvar beginnormal_vertex = \"\\nvec3 objectNormal = vec3( normal );\\n\";\n\n\tvar bsdfs = \"float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\\n\\tif( decayExponent > 0.0 ) {\\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\\n\\t\\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\\n\\t\\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\\n\\t\\treturn distanceFalloff * maxDistanceCutoffFactor;\\n#else\\n\\t\\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\\n#endif\\n\\t}\\n\\treturn 1.0;\\n}\\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\\n\\treturn RECIPROCAL_PI * diffuseColor;\\n}\\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\\n\\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\\n\\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\\n}\\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\treturn 1.0 / ( gl * gv );\\n}\\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\treturn 0.5 / max( gv + gl, EPSILON );\\n}\\nfloat D_GGX( const in float alpha, const in float dotNH ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\\n\\treturn RECIPROCAL_PI * a2 / pow2( denom );\\n}\\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat alpha = pow2( roughness );\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\\n\\tfloat D = D_GGX( alpha, dotNH );\\n\\treturn F * ( G * D );\\n}\\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\\n\\tconst float LUT_SIZE = 64.0;\\n\\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\\n\\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\\n\\tfloat dotNV = saturate( dot( N, V ) );\\n\\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\\n\\tuv = uv * LUT_SCALE + LUT_BIAS;\\n\\treturn uv;\\n}\\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\\n\\tfloat l = length( f );\\n\\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\\n}\\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\\n\\tfloat x = dot( v1, v2 );\\n\\tfloat y = abs( x );\\n\\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\\n\\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\\n\\tfloat v = a / b;\\n\\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\\n\\treturn cross( v1, v2 ) * theta_sintheta;\\n}\\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\\n\\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\\n\\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\\n\\tvec3 lightNormal = cross( v1, v2 );\\n\\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\\n\\tvec3 T1, T2;\\n\\tT1 = normalize( V - N * dot( V, N ) );\\n\\tT2 = - cross( N, T1 );\\n\\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\\n\\tvec3 coords[ 4 ];\\n\\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\\n\\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\\n\\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\\n\\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\\n\\tcoords[ 0 ] = normalize( coords[ 0 ] );\\n\\tcoords[ 1 ] = normalize( coords[ 1 ] );\\n\\tcoords[ 2 ] = normalize( coords[ 2 ] );\\n\\tcoords[ 3 ] = normalize( coords[ 3 ] );\\n\\tvec3 vectorFormFactor = vec3( 0.0 );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\\n\\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\\n\\treturn vec3( result );\\n}\\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\\n\\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\\n\\tvec4 r = roughness * c0 + c1;\\n\\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\\n\\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\\n\\treturn specularColor * AB.x + AB.y;\\n}\\nfloat G_BlinnPhong_Implicit( ) {\\n\\treturn 0.25;\\n}\\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\\n\\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\\n}\\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_BlinnPhong_Implicit( );\\n\\tfloat D = D_BlinnPhong( shininess, dotNH );\\n\\treturn F * ( G * D );\\n}\\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\\n\\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\\n}\\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\\n\\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\\n}\\n\";\n\n\tvar bumpmap_pars_fragment = \"#ifdef USE_BUMPMAP\\n\\tuniform sampler2D bumpMap;\\n\\tuniform float bumpScale;\\n\\tvec2 dHdxy_fwd() {\\n\\t\\tvec2 dSTdx = dFdx( vUv );\\n\\t\\tvec2 dSTdy = dFdy( vUv );\\n\\t\\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\\n\\t\\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\\n\\t\\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\\n\\t\\treturn vec2( dBx, dBy );\\n\\t}\\n\\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\\n\\t\\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\\n\\t\\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\\n\\t\\tvec3 vN = surf_norm;\\n\\t\\tvec3 R1 = cross( vSigmaY, vN );\\n\\t\\tvec3 R2 = cross( vN, vSigmaX );\\n\\t\\tfloat fDet = dot( vSigmaX, R1 );\\n\\t\\tfDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t\\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\\n\\t\\treturn normalize( abs( fDet ) * surf_norm - vGrad );\\n\\t}\\n#endif\\n\";\n\n\tvar clipping_planes_fragment = \"#if NUM_CLIPPING_PLANES > 0\\n\\tvec4 plane;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\\n\\t\\tplane = clippingPlanes[ i ];\\n\\t\\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\\n\\t}\\n\\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\\n\\t\\tbool clipped = true;\\n\\t\\t#pragma unroll_loop\\n\\t\\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\\n\\t\\t\\tplane = clippingPlanes[ i ];\\n\\t\\t\\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\\n\\t\\t}\\n\\t\\tif ( clipped ) discard;\\n\\t#endif\\n#endif\\n\";\n\n\tvar clipping_planes_pars_fragment = \"#if NUM_CLIPPING_PLANES > 0\\n\\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\t\\tvarying vec3 vViewPosition;\\n\\t#endif\\n\\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\\n#endif\\n\";\n\n\tvar clipping_planes_pars_vertex = \"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n\";\n\n\tvar clipping_planes_vertex = \"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvViewPosition = - mvPosition.xyz;\\n#endif\\n\";\n\n\tvar color_fragment = \"#ifdef USE_COLOR\\n\\tdiffuseColor.rgb *= vColor;\\n#endif\";\n\n\tvar color_pars_fragment = \"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\\n\";\n\n\tvar color_pars_vertex = \"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\";\n\n\tvar color_vertex = \"#ifdef USE_COLOR\\n\\tvColor.xyz = color.xyz;\\n#endif\";\n\n\tvar common = \"#define PI 3.14159265359\\n#define PI2 6.28318530718\\n#define PI_HALF 1.5707963267949\\n#define RECIPROCAL_PI 0.31830988618\\n#define RECIPROCAL_PI2 0.15915494\\n#define LOG2 1.442695\\n#define EPSILON 1e-6\\n#define saturate(a) clamp( a, 0.0, 1.0 )\\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\\nfloat pow2( const in float x ) { return x*x; }\\nfloat pow3( const in float x ) { return x*x*x; }\\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\\nhighp float rand( const in vec2 uv ) {\\n\\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\\n\\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\\n\\treturn fract(sin(sn) * c);\\n}\\nstruct IncidentLight {\\n\\tvec3 color;\\n\\tvec3 direction;\\n\\tbool visible;\\n};\\nstruct ReflectedLight {\\n\\tvec3 directDiffuse;\\n\\tvec3 directSpecular;\\n\\tvec3 indirectDiffuse;\\n\\tvec3 indirectSpecular;\\n};\\nstruct GeometricContext {\\n\\tvec3 position;\\n\\tvec3 normal;\\n\\tvec3 viewDir;\\n};\\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\\n}\\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\\n}\\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\tfloat distance = dot( planeNormal, point - pointOnPlane );\\n\\treturn - distance * planeNormal + point;\\n}\\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn sign( dot( point - pointOnPlane, planeNormal ) );\\n}\\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\\n}\\nmat3 transposeMat3( const in mat3 m ) {\\n\\tmat3 tmp;\\n\\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\\n\\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\\n\\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\\n\\treturn tmp;\\n}\\nfloat linearToRelativeLuminance( const in vec3 color ) {\\n\\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\\n\\treturn dot( weights, color.rgb );\\n}\\n\";\n\n\tvar cube_uv_reflection_fragment = \"#ifdef ENVMAP_TYPE_CUBE_UV\\n#define cubeUV_textureSize (1024.0)\\nint getFaceFromDirection(vec3 direction) {\\n\\tvec3 absDirection = abs(direction);\\n\\tint face = -1;\\n\\tif( absDirection.x > absDirection.z ) {\\n\\t\\tif(absDirection.x > absDirection.y )\\n\\t\\t\\tface = direction.x > 0.0 ? 0 : 3;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\telse {\\n\\t\\tif(absDirection.z > absDirection.y )\\n\\t\\t\\tface = direction.z > 0.0 ? 2 : 5;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\treturn face;\\n}\\n#define cubeUV_maxLods1 (log2(cubeUV_textureSize*0.25) - 1.0)\\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\\n\\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\\n\\tfloat dxRoughness = dFdx(roughness);\\n\\tfloat dyRoughness = dFdy(roughness);\\n\\tvec3 dx = dFdx( vec * scale * dxRoughness );\\n\\tvec3 dy = dFdy( vec * scale * dyRoughness );\\n\\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\\n\\td = clamp(d, 1.0, cubeUV_rangeClamp);\\n\\tfloat mipLevel = 0.5 * log2(d);\\n\\treturn vec2(floor(mipLevel), fract(mipLevel));\\n}\\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\\n\\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\\n\\tfloat a = 16.0 * cubeUV_rcpTextureSize;\\n\\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\\n\\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\\n\\tfloat powScale = exp2_packed.x * exp2_packed.y;\\n\\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\\n\\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\\n\\tbool bRes = mipLevel == 0.0;\\n\\tscale = bRes && (scale < a) ? a : scale;\\n\\tvec3 r;\\n\\tvec2 offset;\\n\\tint face = getFaceFromDirection(direction);\\n\\tfloat rcpPowScale = 1.0 / powScale;\\n\\tif( face == 0) {\\n\\t\\tr = vec3(direction.x, -direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 1) {\\n\\t\\tr = vec3(direction.y, direction.x, direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 2) {\\n\\t\\tr = vec3(direction.z, direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 3) {\\n\\t\\tr = vec3(direction.x, direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse if( face == 4) {\\n\\t\\tr = vec3(direction.y, direction.x, -direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse {\\n\\t\\tr = vec3(direction.z, -direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\tr = normalize(r);\\n\\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\\n\\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\\n\\tvec2 base = offset + vec2( texelOffset );\\n\\treturn base + s * ( scale - 2.0 * texelOffset );\\n}\\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\\nvec4 textureCubeUV( sampler2D envMap, vec3 reflectedDirection, float roughness ) {\\n\\tfloat roughnessVal = roughness* cubeUV_maxLods3;\\n\\tfloat r1 = floor(roughnessVal);\\n\\tfloat r2 = r1 + 1.0;\\n\\tfloat t = fract(roughnessVal);\\n\\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\\n\\tfloat s = mipInfo.y;\\n\\tfloat level0 = mipInfo.x;\\n\\tfloat level1 = level0 + 1.0;\\n\\tlevel1 = level1 > 5.0 ? 5.0 : level1;\\n\\tlevel0 += min( floor( s + 0.5 ), 5.0 );\\n\\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\\n\\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\\n\\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\\n\\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\\n\\tvec4 result = mix(color10, color20, t);\\n\\treturn vec4(result.rgb, 1.0);\\n}\\n#endif\\n\";\n\n\tvar defaultnormal_vertex = \"vec3 transformedNormal = normalMatrix * objectNormal;\\n#ifdef FLIP_SIDED\\n\\ttransformedNormal = - transformedNormal;\\n#endif\\n\";\n\n\tvar displacementmap_pars_vertex = \"#ifdef USE_DISPLACEMENTMAP\\n\\tuniform sampler2D displacementMap;\\n\\tuniform float displacementScale;\\n\\tuniform float displacementBias;\\n#endif\\n\";\n\n\tvar displacementmap_vertex = \"#ifdef USE_DISPLACEMENTMAP\\n\\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\\n#endif\\n\";\n\n\tvar emissivemap_fragment = \"#ifdef USE_EMISSIVEMAP\\n\\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\\n\\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\\n\\ttotalEmissiveRadiance *= emissiveColor.rgb;\\n#endif\\n\";\n\n\tvar emissivemap_pars_fragment = \"#ifdef USE_EMISSIVEMAP\\n\\tuniform sampler2D emissiveMap;\\n#endif\\n\";\n\n\tvar encodings_fragment = \" gl_FragColor = linearToOutputTexel( gl_FragColor );\\n\";\n\n\tvar encodings_pars_fragment = \"\\nvec4 LinearToLinear( in vec4 value ) {\\n\\treturn value;\\n}\\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\\n\\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\\n}\\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\\n\\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\\n}\\nvec4 sRGBToLinear( in vec4 value ) {\\n\\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\\n}\\nvec4 LinearTosRGB( in vec4 value ) {\\n\\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\\n}\\nvec4 RGBEToLinear( in vec4 value ) {\\n\\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\\n}\\nvec4 LinearToRGBE( in vec4 value ) {\\n\\tfloat maxComponent = max( max( value.r, value.g ), value.b );\\n\\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\\n\\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\\n}\\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\\n\\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\\n}\\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\\n\\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\\n\\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\\n\\tM = ceil( M * 255.0 ) / 255.0;\\n\\treturn vec4( value.rgb / ( M * maxRange ), M );\\n}\\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\\n\\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\\n}\\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\\n\\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\\n\\tfloat D = max( maxRange / maxRGB, 1.0 );\\n\\tD = min( floor( D ) / 255.0, 1.0 );\\n\\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\\n}\\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\\nvec4 LinearToLogLuv( in vec4 value ) {\\n\\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\\n\\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\\n\\tvec4 vResult;\\n\\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\\n\\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\\n\\tvResult.w = fract(Le);\\n\\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\\n\\treturn vResult;\\n}\\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\\nvec4 LogLuvToLinear( in vec4 value ) {\\n\\tfloat Le = value.z * 255.0 + value.w;\\n\\tvec3 Xp_Y_XYZp;\\n\\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\\n\\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\\n\\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\\n\\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\\n\\treturn vec4( max(vRGB, 0.0), 1.0 );\\n}\\n\";\n\n\tvar envmap_fragment = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#else\\n\\t\\tvec3 reflectVec = vReflect;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\\n\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\tvec2 sampleUV;\\n\\t\\treflectVec = normalize( reflectVec );\\n\\t\\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\t\\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\tvec4 envColor = texture2D( envMap, sampleUV );\\n\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\treflectVec = normalize( reflectVec );\\n\\t\\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\\n\\t\\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\\n\\t#else\\n\\t\\tvec4 envColor = vec4( 0.0 );\\n\\t#endif\\n\\tenvColor = envMapTexelToLinear( envColor );\\n\\t#ifdef ENVMAP_BLENDING_MULTIPLY\\n\\t\\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_MIX )\\n\\t\\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_ADD )\\n\\t\\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_pars_fragment = \"#if defined( USE_ENVMAP ) || defined( PHYSICAL )\\n\\tuniform float reflectivity;\\n\\tuniform float envMapIntensity;\\n#endif\\n#ifdef USE_ENVMAP\\n\\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tuniform samplerCube envMap;\\n\\t#else\\n\\t\\tuniform sampler2D envMap;\\n\\t#endif\\n\\tuniform float flipEnvMap;\\n\\tuniform int maxMipLevel;\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\\n\\t\\tuniform float refractionRatio;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_pars_vertex = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t\\tuniform float refractionRatio;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_vertex = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvWorldPosition = worldPosition.xyz;\\n\\t#else\\n\\t\\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvReflect = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#endif\\n#endif\\n\";\n\n\tvar fog_vertex = \"\\n#ifdef USE_FOG\\nfogDepth = -mvPosition.z;\\n#endif\";\n\n\tvar fog_pars_vertex = \"#ifdef USE_FOG\\n varying float fogDepth;\\n#endif\\n\";\n\n\tvar fog_fragment = \"#ifdef USE_FOG\\n\\t#ifdef FOG_EXP2\\n\\t\\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\\n\\t#else\\n\\t\\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\\n\\t#endif\\n\\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\\n#endif\\n\";\n\n\tvar fog_pars_fragment = \"#ifdef USE_FOG\\n\\tuniform vec3 fogColor;\\n\\tvarying float fogDepth;\\n\\t#ifdef FOG_EXP2\\n\\t\\tuniform float fogDensity;\\n\\t#else\\n\\t\\tuniform float fogNear;\\n\\t\\tuniform float fogFar;\\n\\t#endif\\n#endif\\n\";\n\n\tvar gradientmap_pars_fragment = \"#ifdef TOON\\n\\tuniform sampler2D gradientMap;\\n\\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\\n\\t\\tfloat dotNL = dot( normal, lightDirection );\\n\\t\\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\\n\\t\\t#ifdef USE_GRADIENTMAP\\n\\t\\t\\treturn texture2D( gradientMap, coord ).rgb;\\n\\t\\t#else\\n\\t\\t\\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar lightmap_fragment = \"#ifdef USE_LIGHTMAP\\n\\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n#endif\\n\";\n\n\tvar lightmap_pars_fragment = \"#ifdef USE_LIGHTMAP\\n\\tuniform sampler2D lightMap;\\n\\tuniform float lightMapIntensity;\\n#endif\";\n\n\tvar lights_lambert_vertex = \"vec3 diffuse = vec3( 1.0 );\\nGeometricContext geometry;\\ngeometry.position = mvPosition.xyz;\\ngeometry.normal = normalize( transformedNormal );\\ngeometry.viewDir = normalize( -mvPosition.xyz );\\nGeometricContext backGeometry;\\nbackGeometry.position = geometry.position;\\nbackGeometry.normal = -geometry.normal;\\nbackGeometry.viewDir = geometry.viewDir;\\nvLightFront = vec3( 0.0 );\\n#ifdef DOUBLE_SIDED\\n\\tvLightBack = vec3( 0.0 );\\n#endif\\nIncidentLight directLight;\\nfloat dotNL;\\nvec3 directLightColor_Diffuse;\\n#if NUM_POINT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_DIR_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar lights_pars_begin = \"uniform vec3 ambientLightColor;\\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\\n\\tvec3 irradiance = ambientLightColor;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treturn irradiance;\\n}\\n#if NUM_DIR_LIGHTS > 0\\n\\tstruct DirectionalLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\\n\\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tdirectLight.color = directionalLight.color;\\n\\t\\tdirectLight.direction = directionalLight.direction;\\n\\t\\tdirectLight.visible = true;\\n\\t}\\n#endif\\n#if NUM_POINT_LIGHTS > 0\\n\\tstruct PointLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t\\tfloat shadowCameraNear;\\n\\t\\tfloat shadowCameraFar;\\n\\t};\\n\\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\\n\\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tvec3 lVector = pointLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tdirectLight.color = pointLight.color;\\n\\t\\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\\n\\t\\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\tstruct SpotLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tfloat coneCos;\\n\\t\\tfloat penumbraCos;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\\n\\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tvec3 lVector = spotLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tfloat angleCos = dot( directLight.direction, spotLight.direction );\\n\\t\\tif ( angleCos > spotLight.coneCos ) {\\n\\t\\t\\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\\n\\t\\t\\tdirectLight.color = spotLight.color;\\n\\t\\t\\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\\n\\t\\t\\tdirectLight.visible = true;\\n\\t\\t} else {\\n\\t\\t\\tdirectLight.color = vec3( 0.0 );\\n\\t\\t\\tdirectLight.visible = false;\\n\\t\\t}\\n\\t}\\n#endif\\n#if NUM_RECT_AREA_LIGHTS > 0\\n\\tstruct RectAreaLight {\\n\\t\\tvec3 color;\\n\\t\\tvec3 position;\\n\\t\\tvec3 halfWidth;\\n\\t\\tvec3 halfHeight;\\n\\t};\\n\\tuniform sampler2D ltc_1;\\tuniform sampler2D ltc_2;\\n\\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\tstruct HemisphereLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 skyColor;\\n\\t\\tvec3 groundColor;\\n\\t};\\n\\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\\n\\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\\n\\t\\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\\n\\t\\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\\n\\t\\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tirradiance *= PI;\\n\\t\\t#endif\\n\\t\\treturn irradiance;\\n\\t}\\n#endif\\n\";\n\n\tvar envmap_physical_pars_fragment = \"#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\\n\\t\\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV( envMap, queryVec, 1.0 );\\n\\t\\t#else\\n\\t\\t\\tvec4 envMapColor = vec4( 0.0 );\\n\\t\\t#endif\\n\\t\\treturn PI * envMapColor.rgb * envMapIntensity;\\n\\t}\\n\\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\tfloat maxMIPLevelScalar = float( maxMIPLevel );\\n\\t\\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\\n\\t\\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\\n\\t}\\n\\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\\n\\t\\t#endif\\n\\t\\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\\n\\t\\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV( envMap, queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent ));\\n\\t\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\t\\tvec2 sampleUV;\\n\\t\\t\\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\t\\t\\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\t\\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#endif\\n\\t\\treturn envMapColor.rgb * envMapIntensity;\\n\\t}\\n#endif\\n\";\n\n\tvar lights_phong_fragment = \"BlinnPhongMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb;\\nmaterial.specularColor = specular;\\nmaterial.specularShininess = shininess;\\nmaterial.specularStrength = specularStrength;\\n\";\n\n\tvar lights_phong_pars_fragment = \"varying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\nstruct BlinnPhongMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tvec3\\tspecularColor;\\n\\tfloat\\tspecularShininess;\\n\\tfloat\\tspecularStrength;\\n};\\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t#ifdef TOON\\n\\t\\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\\n\\t#else\\n\\t\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\t\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#endif\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\\n}\\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_BlinnPhong\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_BlinnPhong\\n#define Material_LightProbeLOD( material )\\t(0)\\n\";\n\n\tvar lights_physical_fragment = \"PhysicalMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\\n#ifdef STANDARD\\n\\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\\n#else\\n\\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\\n\\tmaterial.clearCoat = saturate( clearCoat );\\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\\n#endif\\n\";\n\n\tvar lights_physical_pars_fragment = \"struct PhysicalMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tfloat\\tspecularRoughness;\\n\\tvec3\\tspecularColor;\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoat;\\n\\t\\tfloat clearCoatRoughness;\\n\\t#endif\\n};\\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\\n\\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\\n}\\n#if NUM_RECT_AREA_LIGHTS > 0\\n\\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t\\tvec3 normal = geometry.normal;\\n\\t\\tvec3 viewDir = geometry.viewDir;\\n\\t\\tvec3 position = geometry.position;\\n\\t\\tvec3 lightPos = rectAreaLight.position;\\n\\t\\tvec3 halfWidth = rectAreaLight.halfWidth;\\n\\t\\tvec3 halfHeight = rectAreaLight.halfHeight;\\n\\t\\tvec3 lightColor = rectAreaLight.color;\\n\\t\\tfloat roughness = material.specularRoughness;\\n\\t\\tvec3 rectCoords[ 4 ];\\n\\t\\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\\t\\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\\n\\t\\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\\n\\t\\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\\n\\t\\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\\n\\t\\tvec4 t1 = texture2D( ltc_1, uv );\\n\\t\\tvec4 t2 = texture2D( ltc_2, uv );\\n\\t\\tmat3 mInv = mat3(\\n\\t\\t\\tvec3( t1.x, 0, t1.y ),\\n\\t\\t\\tvec3( 0, 1, 0 ),\\n\\t\\t\\tvec3( t1.z, 0, t1.w )\\n\\t\\t);\\n\\t\\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\\n\\t\\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\\n\\t\\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\\n\\t}\\n#endif\\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\\n\\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t#ifndef STANDARD\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\tfloat dotNL = dotNV;\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_Physical\\n#define RE_Direct_RectArea\\t\\tRE_Direct_RectArea_Physical\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_Physical\\n#define RE_IndirectSpecular\\t\\tRE_IndirectSpecular_Physical\\n#define Material_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.specularRoughness )\\n#define Material_ClearCoat_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\\n\\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\\n}\\n\";\n\n\tvar lights_fragment_begin = \"\\nGeometricContext geometry;\\ngeometry.position = - vViewPosition;\\ngeometry.normal = normal;\\ngeometry.viewDir = normalize( vViewPosition );\\nIncidentLight directLight;\\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tPointLight pointLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tSpotLight spotLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tDirectionalLight directionalLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\\n\\tRectAreaLight rectAreaLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\\n\\t\\trectAreaLight = rectAreaLights[ i ];\\n\\t\\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if defined( RE_IndirectDiffuse )\\n\\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\\n\\t#if ( NUM_HEMI_LIGHTS > 0 )\\n\\t\\t#pragma unroll_loop\\n\\t\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\t\\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t}\\n\\t#endif\\n#endif\\n#if defined( RE_IndirectSpecular )\\n\\tvec3 radiance = vec3( 0.0 );\\n\\tvec3 clearCoatRadiance = vec3( 0.0 );\\n#endif\\n\";\n\n\tvar lights_fragment_maps = \"#if defined( RE_IndirectDiffuse )\\n\\t#ifdef USE_LIGHTMAP\\n\\t\\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tlightMapIrradiance *= PI;\\n\\t\\t#endif\\n\\t\\tirradiance += lightMapIrradiance;\\n\\t#endif\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\tirradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\\n\\t#endif\\n#endif\\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\\n\\tradiance += getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), maxMipLevel );\\n\\t#ifndef STANDARD\\n\\t\\tclearCoatRadiance += getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), maxMipLevel );\\n\\t#endif\\n#endif\\n\";\n\n\tvar lights_fragment_end = \"#if defined( RE_IndirectDiffuse )\\n\\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\\n#endif\\n#if defined( RE_IndirectSpecular )\\n\\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\\n#endif\\n\";\n\n\tvar logdepthbuf_fragment = \"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\\n\\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\\n#endif\";\n\n\tvar logdepthbuf_pars_fragment = \"#ifdef USE_LOGDEPTHBUF\\n\\tuniform float logDepthBufFC;\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n#endif\\n\";\n\n\tvar logdepthbuf_pars_vertex = \"#ifdef USE_LOGDEPTHBUF\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n\\tuniform float logDepthBufFC;\\n#endif\";\n\n\tvar logdepthbuf_vertex = \"#ifdef USE_LOGDEPTHBUF\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvFragDepth = 1.0 + gl_Position.w;\\n\\t#else\\n\\t\\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\\n\\t\\tgl_Position.z *= gl_Position.w;\\n\\t#endif\\n#endif\\n\";\n\n\tvar map_fragment = \"#ifdef USE_MAP\\n\\tvec4 texelColor = texture2D( map, vUv );\\n\\ttexelColor = mapTexelToLinear( texelColor );\\n\\tdiffuseColor *= texelColor;\\n#endif\\n\";\n\n\tvar map_pars_fragment = \"#ifdef USE_MAP\\n\\tuniform sampler2D map;\\n#endif\\n\";\n\n\tvar map_particle_fragment = \"#ifdef USE_MAP\\n\\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\\n\\tvec4 mapTexel = texture2D( map, uv );\\n\\tdiffuseColor *= mapTexelToLinear( mapTexel );\\n#endif\\n\";\n\n\tvar map_particle_pars_fragment = \"#ifdef USE_MAP\\n\\tuniform mat3 uvTransform;\\n\\tuniform sampler2D map;\\n#endif\\n\";\n\n\tvar metalnessmap_fragment = \"float metalnessFactor = metalness;\\n#ifdef USE_METALNESSMAP\\n\\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\\n\\tmetalnessFactor *= texelMetalness.b;\\n#endif\\n\";\n\n\tvar metalnessmap_pars_fragment = \"#ifdef USE_METALNESSMAP\\n\\tuniform sampler2D metalnessMap;\\n#endif\";\n\n\tvar morphnormal_vertex = \"#ifdef USE_MORPHNORMALS\\n\\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\\n\\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\\n\\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\\n\\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\\n#endif\\n\";\n\n\tvar morphtarget_pars_vertex = \"#ifdef USE_MORPHTARGETS\\n\\t#ifndef USE_MORPHNORMALS\\n\\tuniform float morphTargetInfluences[ 8 ];\\n\\t#else\\n\\tuniform float morphTargetInfluences[ 4 ];\\n\\t#endif\\n#endif\";\n\n\tvar morphtarget_vertex = \"#ifdef USE_MORPHTARGETS\\n\\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\\n\\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\\n\\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\\n\\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\\n\\t#ifndef USE_MORPHNORMALS\\n\\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\\n\\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\\n\\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\\n\\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\\n\\t#endif\\n#endif\\n\";\n\n\tvar normal_fragment_begin = \"#ifdef FLAT_SHADED\\n\\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\\n\\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\\n\\tvec3 normal = normalize( cross( fdx, fdy ) );\\n#else\\n\\tvec3 normal = normalize( vNormal );\\n\\t#ifdef DOUBLE_SIDED\\n\\t\\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t#endif\\n#endif\\n\";\n\n\tvar normal_fragment_maps = \"#ifdef USE_NORMALMAP\\n\\t#ifdef OBJECTSPACE_NORMALMAP\\n\\t\\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\\n\\t\\t#ifdef FLIP_SIDED\\n\\t\\t\\tnormal = - normal;\\n\\t\\t#endif\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t\\t#endif\\n\\t\\tnormal = normalize( normalMatrix * normal );\\n\\t#else\\n\\t\\tnormal = perturbNormal2Arb( -vViewPosition, normal );\\n\\t#endif\\n#elif defined( USE_BUMPMAP )\\n\\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\\n#endif\\n\";\n\n\tvar normalmap_pars_fragment = \"#ifdef USE_NORMALMAP\\n\\tuniform sampler2D normalMap;\\n\\tuniform vec2 normalScale;\\n\\t#ifdef OBJECTSPACE_NORMALMAP\\n\\t\\tuniform mat3 normalMatrix;\\n\\t#else\\n\\t\\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\\n\\t\\t\\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\\n\\t\\t\\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\\n\\t\\t\\tvec2 st0 = dFdx( vUv.st );\\n\\t\\t\\tvec2 st1 = dFdy( vUv.st );\\n\\t\\t\\tfloat scale = sign( st1.t * st0.s - st0.t * st1.s );\\n\\t\\t\\tvec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );\\n\\t\\t\\tvec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );\\n\\t\\t\\tvec3 N = normalize( surf_norm );\\n\\t\\t\\tmat3 tsn = mat3( S, T, N );\\n\\t\\t\\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\\n\\t\\t\\tmapN.xy *= normalScale;\\n\\t\\t\\tmapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t\\t\\treturn normalize( tsn * mapN );\\n\\t\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar packing = \"vec3 packNormalToRGB( const in vec3 normal ) {\\n\\treturn normalize( normal ) * 0.5 + 0.5;\\n}\\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\\n\\treturn 2.0 * rgb.xyz - 1.0;\\n}\\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\\nconst float ShiftRight8 = 1. / 256.;\\nvec4 packDepthToRGBA( const in float v ) {\\n\\tvec4 r = vec4( fract( v * PackFactors ), v );\\n\\tr.yzw -= r.xyz * ShiftRight8;\\treturn r * PackUpscale;\\n}\\nfloat unpackRGBAToDepth( const in vec4 v ) {\\n\\treturn dot( v, UnpackFactors );\\n}\\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\\n\\treturn ( viewZ + near ) / ( near - far );\\n}\\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\\n\\treturn linearClipZ * ( near - far ) - near;\\n}\\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\\n\\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\\n}\\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\\n\\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\\n}\\n\";\n\n\tvar premultiplied_alpha_fragment = \"#ifdef PREMULTIPLIED_ALPHA\\n\\tgl_FragColor.rgb *= gl_FragColor.a;\\n#endif\\n\";\n\n\tvar project_vertex = \"vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\\ngl_Position = projectionMatrix * mvPosition;\\n\";\n\n\tvar dithering_fragment = \"#if defined( DITHERING )\\n gl_FragColor.rgb = dithering( gl_FragColor.rgb );\\n#endif\\n\";\n\n\tvar dithering_pars_fragment = \"#if defined( DITHERING )\\n\\tvec3 dithering( vec3 color ) {\\n\\t\\tfloat grid_position = rand( gl_FragCoord.xy );\\n\\t\\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\\n\\t\\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\\n\\t\\treturn color + dither_shift_RGB;\\n\\t}\\n#endif\\n\";\n\n\tvar roughnessmap_fragment = \"float roughnessFactor = roughness;\\n#ifdef USE_ROUGHNESSMAP\\n\\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\\n\\troughnessFactor *= texelRoughness.g;\\n#endif\\n\";\n\n\tvar roughnessmap_pars_fragment = \"#ifdef USE_ROUGHNESSMAP\\n\\tuniform sampler2D roughnessMap;\\n#endif\";\n\n\tvar shadowmap_pars_fragment = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n\\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\\n\\t\\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\\n\\t}\\n\\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\\n\\t\\tconst vec2 offset = vec2( 0.0, 1.0 );\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / size;\\n\\t\\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\\n\\t\\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\\n\\t\\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\\n\\t\\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\\n\\t\\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\\n\\t\\tvec2 f = fract( uv * size + 0.5 );\\n\\t\\tfloat a = mix( lb, lt, f.y );\\n\\t\\tfloat b = mix( rb, rt, f.y );\\n\\t\\tfloat c = mix( a, b, f.x );\\n\\t\\treturn c;\\n\\t}\\n\\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\\n\\t\\tfloat shadow = 1.0;\\n\\t\\tshadowCoord.xyz /= shadowCoord.w;\\n\\t\\tshadowCoord.z += shadowBias;\\n\\t\\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\\n\\t\\tbool inFrustum = all( inFrustumVec );\\n\\t\\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\\n\\t\\tbool frustumTest = all( frustumTestVec );\\n\\t\\tif ( frustumTest ) {\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\tshadow = (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\tshadow = (\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\\n\\t\\t#endif\\n\\t\\t}\\n\\t\\treturn shadow;\\n\\t}\\n\\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\\n\\t\\tvec3 absV = abs( v );\\n\\t\\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\\n\\t\\tabsV *= scaleToCube;\\n\\t\\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\\n\\t\\tvec2 planar = v.xy;\\n\\t\\tfloat almostATexel = 1.5 * texelSizeY;\\n\\t\\tfloat almostOne = 1.0 - almostATexel;\\n\\t\\tif ( absV.z >= almostOne ) {\\n\\t\\t\\tif ( v.z > 0.0 )\\n\\t\\t\\t\\tplanar.x = 4.0 - v.x;\\n\\t\\t} else if ( absV.x >= almostOne ) {\\n\\t\\t\\tfloat signX = sign( v.x );\\n\\t\\t\\tplanar.x = v.z * signX + 2.0 * signX;\\n\\t\\t} else if ( absV.y >= almostOne ) {\\n\\t\\t\\tfloat signY = sign( v.y );\\n\\t\\t\\tplanar.x = v.x + 2.0 * signY + 2.0;\\n\\t\\t\\tplanar.y = v.z * signY - 2.0;\\n\\t\\t}\\n\\t\\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\\n\\t}\\n\\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\\n\\t\\tvec3 lightToPosition = shadowCoord.xyz;\\n\\t\\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\\t\\tdp += shadowBias;\\n\\t\\tvec3 bd3D = normalize( lightToPosition );\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\\n\\t\\t\\treturn (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar shadowmap_pars_vertex = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n#endif\\n\";\n\n\tvar shadowmap_vertex = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar shadowmask_pars_fragment = \"float getShadowMask() {\\n\\tfloat shadow = 1.0;\\n\\t#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\tDirectionalLight directionalLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\tSpotLight spotLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\tPointLight pointLight;\\n\\t#pragma unroll_loop\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#endif\\n\\treturn shadow;\\n}\\n\";\n\n\tvar skinbase_vertex = \"#ifdef USE_SKINNING\\n\\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\\n\\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\\n\\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\\n\\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\\n#endif\";\n\n\tvar skinning_pars_vertex = \"#ifdef USE_SKINNING\\n\\tuniform mat4 bindMatrix;\\n\\tuniform mat4 bindMatrixInverse;\\n\\t#ifdef BONE_TEXTURE\\n\\t\\tuniform sampler2D boneTexture;\\n\\t\\tuniform int boneTextureSize;\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tfloat j = i * 4.0;\\n\\t\\t\\tfloat x = mod( j, float( boneTextureSize ) );\\n\\t\\t\\tfloat y = floor( j / float( boneTextureSize ) );\\n\\t\\t\\tfloat dx = 1.0 / float( boneTextureSize );\\n\\t\\t\\tfloat dy = 1.0 / float( boneTextureSize );\\n\\t\\t\\ty = dy * ( y + 0.5 );\\n\\t\\t\\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\\n\\t\\t\\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\\n\\t\\t\\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\\n\\t\\t\\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\\n\\t\\t\\tmat4 bone = mat4( v1, v2, v3, v4 );\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#else\\n\\t\\tuniform mat4 boneMatrices[ MAX_BONES ];\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tmat4 bone = boneMatrices[ int(i) ];\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar skinning_vertex = \"#ifdef USE_SKINNING\\n\\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\\n\\tvec4 skinned = vec4( 0.0 );\\n\\tskinned += boneMatX * skinVertex * skinWeight.x;\\n\\tskinned += boneMatY * skinVertex * skinWeight.y;\\n\\tskinned += boneMatZ * skinVertex * skinWeight.z;\\n\\tskinned += boneMatW * skinVertex * skinWeight.w;\\n\\ttransformed = ( bindMatrixInverse * skinned ).xyz;\\n#endif\\n\";\n\n\tvar skinnormal_vertex = \"#ifdef USE_SKINNING\\n\\tmat4 skinMatrix = mat4( 0.0 );\\n\\tskinMatrix += skinWeight.x * boneMatX;\\n\\tskinMatrix += skinWeight.y * boneMatY;\\n\\tskinMatrix += skinWeight.z * boneMatZ;\\n\\tskinMatrix += skinWeight.w * boneMatW;\\n\\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\\n\\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\\n#endif\\n\";\n\n\tvar specularmap_fragment = \"float specularStrength;\\n#ifdef USE_SPECULARMAP\\n\\tvec4 texelSpecular = texture2D( specularMap, vUv );\\n\\tspecularStrength = texelSpecular.r;\\n#else\\n\\tspecularStrength = 1.0;\\n#endif\";\n\n\tvar specularmap_pars_fragment = \"#ifdef USE_SPECULARMAP\\n\\tuniform sampler2D specularMap;\\n#endif\";\n\n\tvar tonemapping_fragment = \"#if defined( TONE_MAPPING )\\n gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\\n#endif\\n\";\n\n\tvar tonemapping_pars_fragment = \"#ifndef saturate\\n\\t#define saturate(a) clamp( a, 0.0, 1.0 )\\n#endif\\nuniform float toneMappingExposure;\\nuniform float toneMappingWhitePoint;\\nvec3 LinearToneMapping( vec3 color ) {\\n\\treturn toneMappingExposure * color;\\n}\\nvec3 ReinhardToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\treturn saturate( color / ( vec3( 1.0 ) + color ) );\\n}\\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\\nvec3 Uncharted2ToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\\n}\\nvec3 OptimizedCineonToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\tcolor = max( vec3( 0.0 ), color - 0.004 );\\n\\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\\n}\\n\";\n\n\tvar uv_pars_fragment = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n#endif\";\n\n\tvar uv_pars_vertex = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n\\tuniform mat3 uvTransform;\\n#endif\\n\";\n\n\tvar uv_vertex = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\\n#endif\";\n\n\tvar uv2_pars_fragment = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvarying vec2 vUv2;\\n#endif\";\n\n\tvar uv2_pars_vertex = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tattribute vec2 uv2;\\n\\tvarying vec2 vUv2;\\n#endif\";\n\n\tvar uv2_vertex = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvUv2 = uv2;\\n#endif\";\n\n\tvar worldpos_vertex = \"#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\\n\\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\\n#endif\\n\";\n\n\tvar cube_frag = \"uniform samplerCube tCube;\\nuniform float tFlip;\\nuniform float opacity;\\nvarying vec3 vWorldPosition;\\nvoid main() {\\n\\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\\n\\tgl_FragColor.a *= opacity;\\n}\\n\";\n\n\tvar cube_vert = \"varying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include \\n\\t#include \\n\\tgl_Position.z = gl_Position.w;\\n}\\n\";\n\n\tvar depth_frag = \"#if DEPTH_PACKING == 3200\\n\\tuniform float opacity;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( 1.0 );\\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tdiffuseColor.a = opacity;\\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tgl_FragColor = vec4( vec3( 1.0 - gl_FragCoord.z ), opacity );\\n\\t#elif DEPTH_PACKING == 3201\\n\\t\\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\\n\\t#endif\\n}\\n\";\n\n\tvar depth_vert = \"#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#ifdef USE_DISPLACEMENTMAP\\n\\t\\t#include \\n\\t\\t#include \\n\\t\\t#include \\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar distanceRGBA_frag = \"#define DISTANCE\\nuniform vec3 referencePosition;\\nuniform float nearDistance;\\nuniform float farDistance;\\nvarying vec3 vWorldPosition;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main () {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( 1.0 );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\tfloat dist = length( vWorldPosition - referencePosition );\\n\\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\\n\\tdist = saturate( dist );\\n\\tgl_FragColor = packDepthToRGBA( dist );\\n}\\n\";\n\n\tvar distanceRGBA_vert = \"#define DISTANCE\\nvarying vec3 vWorldPosition;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#ifdef USE_DISPLACEMENTMAP\\n\\t\\t#include \\n\\t\\t#include \\n\\t\\t#include \\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvWorldPosition = worldPosition.xyz;\\n}\\n\";\n\n\tvar equirect_frag = \"uniform sampler2D tEquirect;\\nvarying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvec3 direction = normalize( vWorldPosition );\\n\\tvec2 sampleUV;\\n\\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\\n\\tgl_FragColor = texture2D( tEquirect, sampleUV );\\n}\\n\";\n\n\tvar equirect_vert = \"varying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar linedashed_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\nuniform float dashSize;\\nuniform float totalSize;\\nvarying float vLineDistance;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\\n\\t\\tdiscard;\\n\\t}\\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar linedashed_vert = \"uniform float scale;\\nattribute float lineDistance;\\nvarying float vLineDistance;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvLineDistance = scale * lineDistance;\\n\\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\\n\\tgl_Position = projectionMatrix * mvPosition;\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshbasic_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\t#ifdef USE_LIGHTMAP\\n\\t\\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n\\t#else\\n\\t\\treflectedLight.indirectDiffuse += vec3( 1.0 );\\n\\t#endif\\n\\t#include \\n\\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\\n\\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshbasic_vert = \"#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#ifdef USE_ENVMAP\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshlambert_frag = \"uniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float opacity;\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\\n\\t#include \\n\\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\\n\\t#ifdef DOUBLE_SIDED\\n\\t\\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\\n\\t#else\\n\\t\\treflectedLight.directDiffuse = vLightFront;\\n\\t#endif\\n\\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshlambert_vert = \"#define LAMBERT\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphong_frag = \"#define PHONG\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform vec3 specular;\\nuniform float shininess;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphong_vert = \"#define PHONG\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphysical_frag = \"#define PHYSICAL\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float roughness;\\nuniform float metalness;\\nuniform float opacity;\\n#ifndef STANDARD\\n\\tuniform float clearCoat;\\n\\tuniform float clearCoatRoughness;\\n#endif\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphysical_vert = \"#define PHYSICAL\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar normal_frag = \"#define NORMAL\\nuniform float opacity;\\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\\n}\\n\";\n\n\tvar normal_vert = \"#define NORMAL\\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\\n\\tvViewPosition = - mvPosition.xyz;\\n#endif\\n}\\n\";\n\n\tvar points_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar points_vert = \"uniform float size;\\nuniform float scale;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#ifdef USE_SIZEATTENUATION\\n\\t\\tgl_PointSize = size * ( scale / - mvPosition.z );\\n\\t#else\\n\\t\\tgl_PointSize = size;\\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar shadow_frag = \"uniform vec3 color;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\\n\\t#include \\n}\\n\";\n\n\tvar shadow_vert = \"#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar sprite_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar sprite_vert = \"uniform float rotation;\\nuniform vec2 center;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec2 scale;\\n\\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\\n\\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\\n\\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\\n\\tvec2 rotatedPosition;\\n\\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\\n\\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\\n\\tvec4 mvPosition;\\n\\tmvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\\n\\tmvPosition.xy += rotatedPosition;\\n\\tgl_Position = projectionMatrix * mvPosition;\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar ShaderChunk = {\n\t\talphamap_fragment: alphamap_fragment,\n\t\talphamap_pars_fragment: alphamap_pars_fragment,\n\t\talphatest_fragment: alphatest_fragment,\n\t\taomap_fragment: aomap_fragment,\n\t\taomap_pars_fragment: aomap_pars_fragment,\n\t\tbegin_vertex: begin_vertex,\n\t\tbeginnormal_vertex: beginnormal_vertex,\n\t\tbsdfs: bsdfs,\n\t\tbumpmap_pars_fragment: bumpmap_pars_fragment,\n\t\tclipping_planes_fragment: clipping_planes_fragment,\n\t\tclipping_planes_pars_fragment: clipping_planes_pars_fragment,\n\t\tclipping_planes_pars_vertex: clipping_planes_pars_vertex,\n\t\tclipping_planes_vertex: clipping_planes_vertex,\n\t\tcolor_fragment: color_fragment,\n\t\tcolor_pars_fragment: color_pars_fragment,\n\t\tcolor_pars_vertex: color_pars_vertex,\n\t\tcolor_vertex: color_vertex,\n\t\tcommon: common,\n\t\tcube_uv_reflection_fragment: cube_uv_reflection_fragment,\n\t\tdefaultnormal_vertex: defaultnormal_vertex,\n\t\tdisplacementmap_pars_vertex: displacementmap_pars_vertex,\n\t\tdisplacementmap_vertex: displacementmap_vertex,\n\t\temissivemap_fragment: emissivemap_fragment,\n\t\temissivemap_pars_fragment: emissivemap_pars_fragment,\n\t\tencodings_fragment: encodings_fragment,\n\t\tencodings_pars_fragment: encodings_pars_fragment,\n\t\tenvmap_fragment: envmap_fragment,\n\t\tenvmap_pars_fragment: envmap_pars_fragment,\n\t\tenvmap_pars_vertex: envmap_pars_vertex,\n\t\tenvmap_physical_pars_fragment: envmap_physical_pars_fragment,\n\t\tenvmap_vertex: envmap_vertex,\n\t\tfog_vertex: fog_vertex,\n\t\tfog_pars_vertex: fog_pars_vertex,\n\t\tfog_fragment: fog_fragment,\n\t\tfog_pars_fragment: fog_pars_fragment,\n\t\tgradientmap_pars_fragment: gradientmap_pars_fragment,\n\t\tlightmap_fragment: lightmap_fragment,\n\t\tlightmap_pars_fragment: lightmap_pars_fragment,\n\t\tlights_lambert_vertex: lights_lambert_vertex,\n\t\tlights_pars_begin: lights_pars_begin,\n\t\tlights_phong_fragment: lights_phong_fragment,\n\t\tlights_phong_pars_fragment: lights_phong_pars_fragment,\n\t\tlights_physical_fragment: lights_physical_fragment,\n\t\tlights_physical_pars_fragment: lights_physical_pars_fragment,\n\t\tlights_fragment_begin: lights_fragment_begin,\n\t\tlights_fragment_maps: lights_fragment_maps,\n\t\tlights_fragment_end: lights_fragment_end,\n\t\tlogdepthbuf_fragment: logdepthbuf_fragment,\n\t\tlogdepthbuf_pars_fragment: logdepthbuf_pars_fragment,\n\t\tlogdepthbuf_pars_vertex: logdepthbuf_pars_vertex,\n\t\tlogdepthbuf_vertex: logdepthbuf_vertex,\n\t\tmap_fragment: map_fragment,\n\t\tmap_pars_fragment: map_pars_fragment,\n\t\tmap_particle_fragment: map_particle_fragment,\n\t\tmap_particle_pars_fragment: map_particle_pars_fragment,\n\t\tmetalnessmap_fragment: metalnessmap_fragment,\n\t\tmetalnessmap_pars_fragment: metalnessmap_pars_fragment,\n\t\tmorphnormal_vertex: morphnormal_vertex,\n\t\tmorphtarget_pars_vertex: morphtarget_pars_vertex,\n\t\tmorphtarget_vertex: morphtarget_vertex,\n\t\tnormal_fragment_begin: normal_fragment_begin,\n\t\tnormal_fragment_maps: normal_fragment_maps,\n\t\tnormalmap_pars_fragment: normalmap_pars_fragment,\n\t\tpacking: packing,\n\t\tpremultiplied_alpha_fragment: premultiplied_alpha_fragment,\n\t\tproject_vertex: project_vertex,\n\t\tdithering_fragment: dithering_fragment,\n\t\tdithering_pars_fragment: dithering_pars_fragment,\n\t\troughnessmap_fragment: roughnessmap_fragment,\n\t\troughnessmap_pars_fragment: roughnessmap_pars_fragment,\n\t\tshadowmap_pars_fragment: shadowmap_pars_fragment,\n\t\tshadowmap_pars_vertex: shadowmap_pars_vertex,\n\t\tshadowmap_vertex: shadowmap_vertex,\n\t\tshadowmask_pars_fragment: shadowmask_pars_fragment,\n\t\tskinbase_vertex: skinbase_vertex,\n\t\tskinning_pars_vertex: skinning_pars_vertex,\n\t\tskinning_vertex: skinning_vertex,\n\t\tskinnormal_vertex: skinnormal_vertex,\n\t\tspecularmap_fragment: specularmap_fragment,\n\t\tspecularmap_pars_fragment: specularmap_pars_fragment,\n\t\ttonemapping_fragment: tonemapping_fragment,\n\t\ttonemapping_pars_fragment: tonemapping_pars_fragment,\n\t\tuv_pars_fragment: uv_pars_fragment,\n\t\tuv_pars_vertex: uv_pars_vertex,\n\t\tuv_vertex: uv_vertex,\n\t\tuv2_pars_fragment: uv2_pars_fragment,\n\t\tuv2_pars_vertex: uv2_pars_vertex,\n\t\tuv2_vertex: uv2_vertex,\n\t\tworldpos_vertex: worldpos_vertex,\n\n\t\tcube_frag: cube_frag,\n\t\tcube_vert: cube_vert,\n\t\tdepth_frag: depth_frag,\n\t\tdepth_vert: depth_vert,\n\t\tdistanceRGBA_frag: distanceRGBA_frag,\n\t\tdistanceRGBA_vert: distanceRGBA_vert,\n\t\tequirect_frag: equirect_frag,\n\t\tequirect_vert: equirect_vert,\n\t\tlinedashed_frag: linedashed_frag,\n\t\tlinedashed_vert: linedashed_vert,\n\t\tmeshbasic_frag: meshbasic_frag,\n\t\tmeshbasic_vert: meshbasic_vert,\n\t\tmeshlambert_frag: meshlambert_frag,\n\t\tmeshlambert_vert: meshlambert_vert,\n\t\tmeshphong_frag: meshphong_frag,\n\t\tmeshphong_vert: meshphong_vert,\n\t\tmeshphysical_frag: meshphysical_frag,\n\t\tmeshphysical_vert: meshphysical_vert,\n\t\tnormal_frag: normal_frag,\n\t\tnormal_vert: normal_vert,\n\t\tpoints_frag: points_frag,\n\t\tpoints_vert: points_vert,\n\t\tshadow_frag: shadow_frag,\n\t\tshadow_vert: shadow_vert,\n\t\tsprite_frag: sprite_frag,\n\t\tsprite_vert: sprite_vert\n\t};\n\n\t/**\n\t * Uniform Utilities\n\t */\n\n\tvar UniformsUtils = {\n\n\t\tmerge: function ( uniforms ) {\n\n\t\t\tvar merged = {};\n\n\t\t\tfor ( var u = 0; u < uniforms.length; u ++ ) {\n\n\t\t\t\tvar tmp = this.clone( uniforms[ u ] );\n\n\t\t\t\tfor ( var p in tmp ) {\n\n\t\t\t\t\tmerged[ p ] = tmp[ p ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn merged;\n\n\t\t},\n\n\t\tclone: function ( uniforms_src ) {\n\n\t\t\tvar uniforms_dst = {};\n\n\t\t\tfor ( var u in uniforms_src ) {\n\n\t\t\t\tuniforms_dst[ u ] = {};\n\n\t\t\t\tfor ( var p in uniforms_src[ u ] ) {\n\n\t\t\t\t\tvar parameter_src = uniforms_src[ u ][ p ];\n\n\t\t\t\t\tif ( parameter_src && ( parameter_src.isColor ||\n\t\t\t\t\t\tparameter_src.isMatrix3 || parameter_src.isMatrix4 ||\n\t\t\t\t\t\tparameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 ||\n\t\t\t\t\t\tparameter_src.isTexture ) ) {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src.clone();\n\n\t\t\t\t\t} else if ( Array.isArray( parameter_src ) ) {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src.slice();\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn uniforms_dst;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,\n\t\t'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,\n\t\t'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,\n\t\t'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,\n\t\t'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,\n\t\t'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,\n\t\t'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,\n\t\t'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,\n\t\t'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,\n\t\t'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,\n\t\t'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,\n\t\t'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,\n\t\t'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,\n\t\t'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,\n\t\t'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,\n\t\t'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,\n\t\t'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,\n\t\t'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,\n\t\t'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,\n\t\t'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,\n\t\t'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,\n\t\t'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,\n\t\t'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,\n\t\t'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };\n\n\tfunction Color( r, g, b ) {\n\n\t\tif ( g === undefined && b === undefined ) {\n\n\t\t\t// r is THREE.Color, hex or string\n\t\t\treturn this.set( r );\n\n\t\t}\n\n\t\treturn this.setRGB( r, g, b );\n\n\t}\n\n\tObject.assign( Color.prototype, {\n\n\t\tisColor: true,\n\n\t\tr: 1, g: 1, b: 1,\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value && value.isColor ) {\n\n\t\t\t\tthis.copy( value );\n\n\t\t\t} else if ( typeof value === 'number' ) {\n\n\t\t\t\tthis.setHex( value );\n\n\t\t\t} else if ( typeof value === 'string' ) {\n\n\t\t\t\tthis.setStyle( value );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.r = scalar;\n\t\t\tthis.g = scalar;\n\t\t\tthis.b = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetHex: function ( hex ) {\n\n\t\t\thex = Math.floor( hex );\n\n\t\t\tthis.r = ( hex >> 16 & 255 ) / 255;\n\t\t\tthis.g = ( hex >> 8 & 255 ) / 255;\n\t\t\tthis.b = ( hex & 255 ) / 255;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetRGB: function ( r, g, b ) {\n\n\t\t\tthis.r = r;\n\t\t\tthis.g = g;\n\t\t\tthis.b = b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetHSL: function () {\n\n\t\t\tfunction hue2rgb( p, q, t ) {\n\n\t\t\t\tif ( t < 0 ) t += 1;\n\t\t\t\tif ( t > 1 ) t -= 1;\n\t\t\t\tif ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;\n\t\t\t\tif ( t < 1 / 2 ) return q;\n\t\t\t\tif ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );\n\t\t\t\treturn p;\n\n\t\t\t}\n\n\t\t\treturn function setHSL( h, s, l ) {\n\n\t\t\t\t// h,s,l ranges are in 0.0 - 1.0\n\t\t\t\th = _Math.euclideanModulo( h, 1 );\n\t\t\t\ts = _Math.clamp( s, 0, 1 );\n\t\t\t\tl = _Math.clamp( l, 0, 1 );\n\n\t\t\t\tif ( s === 0 ) {\n\n\t\t\t\t\tthis.r = this.g = this.b = l;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );\n\t\t\t\t\tvar q = ( 2 * l ) - p;\n\n\t\t\t\t\tthis.r = hue2rgb( q, p, h + 1 / 3 );\n\t\t\t\t\tthis.g = hue2rgb( q, p, h );\n\t\t\t\t\tthis.b = hue2rgb( q, p, h - 1 / 3 );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetStyle: function ( style ) {\n\n\t\t\tfunction handleAlpha( string ) {\n\n\t\t\t\tif ( string === undefined ) return;\n\n\t\t\t\tif ( parseFloat( string ) < 1 ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\tvar m;\n\n\t\t\tif ( m = /^((?:rgb|hsl)a?)\\(\\s*([^\\)]*)\\)/.exec( style ) ) {\n\n\t\t\t\t// rgb / hsl\n\n\t\t\t\tvar color;\n\t\t\t\tvar name = m[ 1 ];\n\t\t\t\tvar components = m[ 2 ];\n\n\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\tcase 'rgb':\n\t\t\t\t\tcase 'rgba':\n\n\t\t\t\t\t\tif ( color = /^(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// rgb(255,0,0) rgba(255,0,0,0.5)\n\t\t\t\t\t\t\tthis.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;\n\t\t\t\t\t\t\tthis.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;\n\t\t\t\t\t\t\tthis.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( color = /^(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)\n\t\t\t\t\t\t\tthis.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;\n\t\t\t\t\t\t\tthis.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;\n\t\t\t\t\t\t\tthis.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'hsl':\n\t\t\t\t\tcase 'hsla':\n\n\t\t\t\t\t\tif ( color = /^([0-9]*\\.?[0-9]+)\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// hsl(120,50%,50%) hsla(120,50%,50%,0.5)\n\t\t\t\t\t\t\tvar h = parseFloat( color[ 1 ] ) / 360;\n\t\t\t\t\t\t\tvar s = parseInt( color[ 2 ], 10 ) / 100;\n\t\t\t\t\t\t\tvar l = parseInt( color[ 3 ], 10 ) / 100;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this.setHSL( h, s, l );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t} else if ( m = /^\\#([A-Fa-f0-9]+)$/.exec( style ) ) {\n\n\t\t\t\t// hex color\n\n\t\t\t\tvar hex = m[ 1 ];\n\t\t\t\tvar size = hex.length;\n\n\t\t\t\tif ( size === 3 ) {\n\n\t\t\t\t\t// #ff0\n\t\t\t\t\tthis.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;\n\t\t\t\t\tthis.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;\n\t\t\t\t\tthis.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t} else if ( size === 6 ) {\n\n\t\t\t\t\t// #ff0000\n\t\t\t\t\tthis.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;\n\t\t\t\t\tthis.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;\n\t\t\t\t\tthis.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( style && style.length > 0 ) {\n\n\t\t\t\t// color keywords\n\t\t\t\tvar hex = ColorKeywords[ style ];\n\n\t\t\t\tif ( hex !== undefined ) {\n\n\t\t\t\t\t// red\n\t\t\t\t\tthis.setHex( hex );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// unknown color\n\t\t\t\t\tconsole.warn( 'THREE.Color: Unknown color ' + style );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.r, this.g, this.b );\n\n\t\t},\n\n\t\tcopy: function ( color ) {\n\n\t\t\tthis.r = color.r;\n\t\t\tthis.g = color.g;\n\t\t\tthis.b = color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyGammaToLinear: function ( color, gammaFactor ) {\n\n\t\t\tif ( gammaFactor === undefined ) gammaFactor = 2.0;\n\n\t\t\tthis.r = Math.pow( color.r, gammaFactor );\n\t\t\tthis.g = Math.pow( color.g, gammaFactor );\n\t\t\tthis.b = Math.pow( color.b, gammaFactor );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyLinearToGamma: function ( color, gammaFactor ) {\n\n\t\t\tif ( gammaFactor === undefined ) gammaFactor = 2.0;\n\n\t\t\tvar safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;\n\n\t\t\tthis.r = Math.pow( color.r, safeInverse );\n\t\t\tthis.g = Math.pow( color.g, safeInverse );\n\t\t\tthis.b = Math.pow( color.b, safeInverse );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertGammaToLinear: function ( gammaFactor ) {\n\n\t\t\tthis.copyGammaToLinear( this, gammaFactor );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertLinearToGamma: function ( gammaFactor ) {\n\n\t\t\tthis.copyLinearToGamma( this, gammaFactor );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopySRGBToLinear: function () {\n\n\t\t\tfunction SRGBToLinear( c ) {\n\n\t\t\t\treturn ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 );\n\n\t\t\t}\n\n\t\t\treturn function copySRGBToLinear( color ) {\n\n\t\t\t\tthis.r = SRGBToLinear( color.r );\n\t\t\t\tthis.g = SRGBToLinear( color.g );\n\t\t\t\tthis.b = SRGBToLinear( color.b );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcopyLinearToSRGB: function () {\n\n\t\t\tfunction LinearToSRGB( c ) {\n\n\t\t\t\treturn ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055;\n\n\t\t\t}\n\n\t\t\treturn function copyLinearToSRGB( color ) {\n\n\t\t\t\tthis.r = LinearToSRGB( color.r );\n\t\t\t\tthis.g = LinearToSRGB( color.g );\n\t\t\t\tthis.b = LinearToSRGB( color.b );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tconvertSRGBToLinear: function () {\n\n\t\t\tthis.copySRGBToLinear( this );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertLinearToSRGB: function () {\n\n\t\t\tthis.copyLinearToSRGB( this );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetHex: function () {\n\n\t\t\treturn ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;\n\n\t\t},\n\n\t\tgetHexString: function () {\n\n\t\t\treturn ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );\n\n\t\t},\n\n\t\tgetHSL: function ( target ) {\n\n\t\t\t// h,s,l ranges are in 0.0 - 1.0\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Color: .getHSL() target is now required' );\n\t\t\t\ttarget = { h: 0, s: 0, l: 0 };\n\n\t\t\t}\n\n\t\t\tvar r = this.r, g = this.g, b = this.b;\n\n\t\t\tvar max = Math.max( r, g, b );\n\t\t\tvar min = Math.min( r, g, b );\n\n\t\t\tvar hue, saturation;\n\t\t\tvar lightness = ( min + max ) / 2.0;\n\n\t\t\tif ( min === max ) {\n\n\t\t\t\thue = 0;\n\t\t\t\tsaturation = 0;\n\n\t\t\t} else {\n\n\t\t\t\tvar delta = max - min;\n\n\t\t\t\tsaturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );\n\n\t\t\t\tswitch ( max ) {\n\n\t\t\t\t\tcase r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;\n\t\t\t\t\tcase g: hue = ( b - r ) / delta + 2; break;\n\t\t\t\t\tcase b: hue = ( r - g ) / delta + 4; break;\n\n\t\t\t\t}\n\n\t\t\t\thue /= 6;\n\n\t\t\t}\n\n\t\t\ttarget.h = hue;\n\t\t\ttarget.s = saturation;\n\t\t\ttarget.l = lightness;\n\n\t\t\treturn target;\n\n\t\t},\n\n\t\tgetStyle: function () {\n\n\t\t\treturn 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';\n\n\t\t},\n\n\t\toffsetHSL: function () {\n\n\t\t\tvar hsl = {};\n\n\t\t\treturn function ( h, s, l ) {\n\n\t\t\t\tthis.getHSL( hsl );\n\n\t\t\t\thsl.h += h; hsl.s += s; hsl.l += l;\n\n\t\t\t\tthis.setHSL( hsl.h, hsl.s, hsl.l );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tadd: function ( color ) {\n\n\t\t\tthis.r += color.r;\n\t\t\tthis.g += color.g;\n\t\t\tthis.b += color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddColors: function ( color1, color2 ) {\n\n\t\t\tthis.r = color1.r + color2.r;\n\t\t\tthis.g = color1.g + color2.g;\n\t\t\tthis.b = color1.b + color2.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.r += s;\n\t\t\tthis.g += s;\n\t\t\tthis.b += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( color ) {\n\n\t\t\tthis.r = Math.max( 0, this.r - color.r );\n\t\t\tthis.g = Math.max( 0, this.g - color.g );\n\t\t\tthis.b = Math.max( 0, this.b - color.b );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( color ) {\n\n\t\t\tthis.r *= color.r;\n\t\t\tthis.g *= color.g;\n\t\t\tthis.b *= color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tthis.r *= s;\n\t\t\tthis.g *= s;\n\t\t\tthis.b *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerp: function ( color, alpha ) {\n\n\t\t\tthis.r += ( color.r - this.r ) * alpha;\n\t\t\tthis.g += ( color.g - this.g ) * alpha;\n\t\t\tthis.b += ( color.b - this.b ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( c ) {\n\n\t\t\treturn ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.r = array[ offset ];\n\t\t\tthis.g = array[ offset + 1 ];\n\t\t\tthis.b = array[ offset + 2 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.r;\n\t\t\tarray[ offset + 1 ] = this.g;\n\t\t\tarray[ offset + 2 ] = this.b;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\treturn this.getHex();\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * Uniforms library for shared webgl shaders\n\t */\n\n\tvar UniformsLib = {\n\n\t\tcommon: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\n\t\t\tmap: { value: null },\n\t\t\tuvTransform: { value: new Matrix3() },\n\n\t\t\talphaMap: { value: null },\n\n\t\t},\n\n\t\tspecularmap: {\n\n\t\t\tspecularMap: { value: null },\n\n\t\t},\n\n\t\tenvmap: {\n\n\t\t\tenvMap: { value: null },\n\t\t\tflipEnvMap: { value: - 1 },\n\t\t\treflectivity: { value: 1.0 },\n\t\t\trefractionRatio: { value: 0.98 },\n\t\t\tmaxMipLevel: { value: 0 }\n\n\t\t},\n\n\t\taomap: {\n\n\t\t\taoMap: { value: null },\n\t\t\taoMapIntensity: { value: 1 }\n\n\t\t},\n\n\t\tlightmap: {\n\n\t\t\tlightMap: { value: null },\n\t\t\tlightMapIntensity: { value: 1 }\n\n\t\t},\n\n\t\temissivemap: {\n\n\t\t\temissiveMap: { value: null }\n\n\t\t},\n\n\t\tbumpmap: {\n\n\t\t\tbumpMap: { value: null },\n\t\t\tbumpScale: { value: 1 }\n\n\t\t},\n\n\t\tnormalmap: {\n\n\t\t\tnormalMap: { value: null },\n\t\t\tnormalScale: { value: new Vector2( 1, 1 ) }\n\n\t\t},\n\n\t\tdisplacementmap: {\n\n\t\t\tdisplacementMap: { value: null },\n\t\t\tdisplacementScale: { value: 1 },\n\t\t\tdisplacementBias: { value: 0 }\n\n\t\t},\n\n\t\troughnessmap: {\n\n\t\t\troughnessMap: { value: null }\n\n\t\t},\n\n\t\tmetalnessmap: {\n\n\t\t\tmetalnessMap: { value: null }\n\n\t\t},\n\n\t\tgradientmap: {\n\n\t\t\tgradientMap: { value: null }\n\n\t\t},\n\n\t\tfog: {\n\n\t\t\tfogDensity: { value: 0.00025 },\n\t\t\tfogNear: { value: 1 },\n\t\t\tfogFar: { value: 2000 },\n\t\t\tfogColor: { value: new Color( 0xffffff ) }\n\n\t\t},\n\n\t\tlights: {\n\n\t\t\tambientLightColor: { value: [] },\n\n\t\t\tdirectionalLights: { value: [], properties: {\n\t\t\t\tdirection: {},\n\t\t\t\tcolor: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {}\n\t\t\t} },\n\n\t\t\tdirectionalShadowMap: { value: [] },\n\t\t\tdirectionalShadowMatrix: { value: [] },\n\n\t\t\tspotLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\tdirection: {},\n\t\t\t\tdistance: {},\n\t\t\t\tconeCos: {},\n\t\t\t\tpenumbraCos: {},\n\t\t\t\tdecay: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {}\n\t\t\t} },\n\n\t\t\tspotShadowMap: { value: [] },\n\t\t\tspotShadowMatrix: { value: [] },\n\n\t\t\tpointLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\tdecay: {},\n\t\t\t\tdistance: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {},\n\t\t\t\tshadowCameraNear: {},\n\t\t\t\tshadowCameraFar: {}\n\t\t\t} },\n\n\t\t\tpointShadowMap: { value: [] },\n\t\t\tpointShadowMatrix: { value: [] },\n\n\t\t\themisphereLights: { value: [], properties: {\n\t\t\t\tdirection: {},\n\t\t\t\tskyColor: {},\n\t\t\t\tgroundColor: {}\n\t\t\t} },\n\n\t\t\t// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src\n\t\t\trectAreaLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\twidth: {},\n\t\t\t\theight: {}\n\t\t\t} }\n\n\t\t},\n\n\t\tpoints: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\t\t\tsize: { value: 1.0 },\n\t\t\tscale: { value: 1.0 },\n\t\t\tmap: { value: null },\n\t\t\tuvTransform: { value: new Matrix3() }\n\n\t\t},\n\n\t\tsprite: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\t\t\tcenter: { value: new Vector2( 0.5, 0.5 ) },\n\t\t\trotation: { value: 0.0 },\n\t\t\tmap: { value: null },\n\t\t\tuvTransform: { value: new Matrix3() }\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t */\n\n\tvar ShaderLib = {\n\n\t\tbasic: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.specularmap,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.fog\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshbasic_vert,\n\t\t\tfragmentShader: ShaderChunk.meshbasic_frag\n\n\t\t},\n\n\t\tlambert: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.specularmap,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\t\t\t\t{\n\t\t\t\t\temissive: { value: new Color( 0x000000 ) }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshlambert_vert,\n\t\t\tfragmentShader: ShaderChunk.meshlambert_frag\n\n\t\t},\n\n\t\tphong: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.specularmap,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\tUniformsLib.gradientmap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\t\t\t\t{\n\t\t\t\t\temissive: { value: new Color( 0x000000 ) },\n\t\t\t\t\tspecular: { value: new Color( 0x111111 ) },\n\t\t\t\t\tshininess: { value: 30 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshphong_vert,\n\t\t\tfragmentShader: ShaderChunk.meshphong_frag\n\n\t\t},\n\n\t\tstandard: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.envmap,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\tUniformsLib.roughnessmap,\n\t\t\t\tUniformsLib.metalnessmap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\t\t\t\t{\n\t\t\t\t\temissive: { value: new Color( 0x000000 ) },\n\t\t\t\t\troughness: { value: 0.5 },\n\t\t\t\t\tmetalness: { value: 0.5 },\n\t\t\t\t\tenvMapIntensity: { value: 1 } // temporary\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshphysical_vert,\n\t\t\tfragmentShader: ShaderChunk.meshphysical_frag\n\n\t\t},\n\n\t\tpoints: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.points,\n\t\t\t\tUniformsLib.fog\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.points_vert,\n\t\t\tfragmentShader: ShaderChunk.points_frag\n\n\t\t},\n\n\t\tdashed: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\t{\n\t\t\t\t\tscale: { value: 1 },\n\t\t\t\t\tdashSize: { value: 1 },\n\t\t\t\t\ttotalSize: { value: 2 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.linedashed_vert,\n\t\t\tfragmentShader: ShaderChunk.linedashed_frag\n\n\t\t},\n\n\t\tdepth: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.displacementmap\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.depth_vert,\n\t\t\tfragmentShader: ShaderChunk.depth_frag\n\n\t\t},\n\n\t\tnormal: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\t{\n\t\t\t\t\topacity: { value: 1.0 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.normal_vert,\n\t\t\tfragmentShader: ShaderChunk.normal_frag\n\n\t\t},\n\n\t\tsprite: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.sprite,\n\t\t\t\tUniformsLib.fog\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.sprite_vert,\n\t\t\tfragmentShader: ShaderChunk.sprite_frag\n\n\t\t},\n\n\t\t/* -------------------------------------------------------------------------\n\t\t//\tCube map shader\n\t\t ------------------------------------------------------------------------- */\n\n\t\tcube: {\n\n\t\t\tuniforms: {\n\t\t\t\ttCube: { value: null },\n\t\t\t\ttFlip: { value: - 1 },\n\t\t\t\topacity: { value: 1.0 }\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.cube_vert,\n\t\t\tfragmentShader: ShaderChunk.cube_frag\n\n\t\t},\n\n\t\tequirect: {\n\n\t\t\tuniforms: {\n\t\t\t\ttEquirect: { value: null },\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.equirect_vert,\n\t\t\tfragmentShader: ShaderChunk.equirect_frag\n\n\t\t},\n\n\t\tdistanceRGBA: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\t{\n\t\t\t\t\treferencePosition: { value: new Vector3() },\n\t\t\t\t\tnearDistance: { value: 1 },\n\t\t\t\t\tfarDistance: { value: 1000 }\n\t\t\t\t}\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.distanceRGBA_vert,\n\t\t\tfragmentShader: ShaderChunk.distanceRGBA_frag\n\n\t\t},\n\n\t\tshadow: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib.lights,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\t{\n\t\t\t\t\tcolor: { value: new Color( 0x00000 ) },\n\t\t\t\t\topacity: { value: 1.0 }\n\t\t\t\t},\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.shadow_vert,\n\t\t\tfragmentShader: ShaderChunk.shadow_frag\n\n\t\t}\n\n\t};\n\n\tShaderLib.physical = {\n\n\t\tuniforms: UniformsUtils.merge( [\n\t\t\tShaderLib.standard.uniforms,\n\t\t\t{\n\t\t\t\tclearCoat: { value: 0 },\n\t\t\t\tclearCoatRoughness: { value: 0 }\n\t\t\t}\n\t\t] ),\n\n\t\tvertexShader: ShaderChunk.meshphysical_vert,\n\t\tfragmentShader: ShaderChunk.meshphysical_frag\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLAnimation() {\n\n\t\tvar context = null;\n\t\tvar isAnimating = false;\n\t\tvar animationLoop = null;\n\n\t\tfunction onAnimationFrame( time, frame ) {\n\n\t\t\tif ( isAnimating === false ) return;\n\n\t\t\tanimationLoop( time, frame );\n\n\t\t\tcontext.requestAnimationFrame( onAnimationFrame );\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tstart: function () {\n\n\t\t\t\tif ( isAnimating === true ) return;\n\t\t\t\tif ( animationLoop === null ) return;\n\n\t\t\t\tcontext.requestAnimationFrame( onAnimationFrame );\n\n\t\t\t\tisAnimating = true;\n\n\t\t\t},\n\n\t\t\tstop: function () {\n\n\t\t\t\tisAnimating = false;\n\n\t\t\t},\n\n\t\t\tsetAnimationLoop: function ( callback ) {\n\n\t\t\t\tanimationLoop = callback;\n\n\t\t\t},\n\n\t\t\tsetContext: function ( value ) {\n\n\t\t\t\tcontext = value;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLAttributes( gl ) {\n\n\t\tvar buffers = new WeakMap();\n\n\t\tfunction createBuffer( attribute, bufferType ) {\n\n\t\t\tvar array = attribute.array;\n\t\t\tvar usage = attribute.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;\n\n\t\t\tvar buffer = gl.createBuffer();\n\n\t\t\tgl.bindBuffer( bufferType, buffer );\n\t\t\tgl.bufferData( bufferType, array, usage );\n\n\t\t\tattribute.onUploadCallback();\n\n\t\t\tvar type = gl.FLOAT;\n\n\t\t\tif ( array instanceof Float32Array ) {\n\n\t\t\t\ttype = gl.FLOAT;\n\n\t\t\t} else if ( array instanceof Float64Array ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );\n\n\t\t\t} else if ( array instanceof Uint16Array ) {\n\n\t\t\t\ttype = gl.UNSIGNED_SHORT;\n\n\t\t\t} else if ( array instanceof Int16Array ) {\n\n\t\t\t\ttype = gl.SHORT;\n\n\t\t\t} else if ( array instanceof Uint32Array ) {\n\n\t\t\t\ttype = gl.UNSIGNED_INT;\n\n\t\t\t} else if ( array instanceof Int32Array ) {\n\n\t\t\t\ttype = gl.INT;\n\n\t\t\t} else if ( array instanceof Int8Array ) {\n\n\t\t\t\ttype = gl.BYTE;\n\n\t\t\t} else if ( array instanceof Uint8Array ) {\n\n\t\t\t\ttype = gl.UNSIGNED_BYTE;\n\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\tbuffer: buffer,\n\t\t\t\ttype: type,\n\t\t\t\tbytesPerElement: array.BYTES_PER_ELEMENT,\n\t\t\t\tversion: attribute.version\n\t\t\t};\n\n\t\t}\n\n\t\tfunction updateBuffer( buffer, attribute, bufferType ) {\n\n\t\t\tvar array = attribute.array;\n\t\t\tvar updateRange = attribute.updateRange;\n\n\t\t\tgl.bindBuffer( bufferType, buffer );\n\n\t\t\tif ( attribute.dynamic === false ) {\n\n\t\t\t\tgl.bufferData( bufferType, array, gl.STATIC_DRAW );\n\n\t\t\t} else if ( updateRange.count === - 1 ) {\n\n\t\t\t\t// Not using update ranges\n\n\t\t\t\tgl.bufferSubData( bufferType, 0, array );\n\n\t\t\t} else if ( updateRange.count === 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );\n\n\t\t\t} else {\n\n\t\t\t\tgl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,\n\t\t\t\t\tarray.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );\n\n\t\t\t\tupdateRange.count = - 1; // reset range\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tfunction get( attribute ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;\n\n\t\t\treturn buffers.get( attribute );\n\n\t\t}\n\n\t\tfunction remove( attribute ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;\n\n\t\t\tvar data = buffers.get( attribute );\n\n\t\t\tif ( data ) {\n\n\t\t\t\tgl.deleteBuffer( data.buffer );\n\n\t\t\t\tbuffers.delete( attribute );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction update( attribute, bufferType ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;\n\n\t\t\tvar data = buffers.get( attribute );\n\n\t\t\tif ( data === undefined ) {\n\n\t\t\t\tbuffers.set( attribute, createBuffer( attribute, bufferType ) );\n\n\t\t\t} else if ( data.version < attribute.version ) {\n\n\t\t\t\tupdateBuffer( data.buffer, attribute, bufferType );\n\n\t\t\t\tdata.version = attribute.version;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tget: get,\n\t\t\tremove: remove,\n\t\t\tupdate: update\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Euler( x, y, z, order ) {\n\n\t\tthis._x = x || 0;\n\t\tthis._y = y || 0;\n\t\tthis._z = z || 0;\n\t\tthis._order = order || Euler.DefaultOrder;\n\n\t}\n\n\tEuler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];\n\n\tEuler.DefaultOrder = 'XYZ';\n\n\tObject.defineProperties( Euler.prototype, {\n\n\t\tx: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._x;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._x = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\ty: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._y;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._y = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\tz: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._z;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._z = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t},\n\n\t\torder: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this._order;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tthis._order = value;\n\t\t\t\tthis.onChangeCallback();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Euler.prototype, {\n\n\t\tisEuler: true,\n\n\t\tset: function ( x, y, z, order ) {\n\n\t\t\tthis._x = x;\n\t\t\tthis._y = y;\n\t\t\tthis._z = z;\n\t\t\tthis._order = order || this._order;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this._x, this._y, this._z, this._order );\n\n\t\t},\n\n\t\tcopy: function ( euler ) {\n\n\t\t\tthis._x = euler._x;\n\t\t\tthis._y = euler._y;\n\t\t\tthis._z = euler._z;\n\t\t\tthis._order = euler._order;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromRotationMatrix: function ( m, order, update ) {\n\n\t\t\tvar clamp = _Math.clamp;\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar te = m.elements;\n\t\t\tvar m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];\n\t\t\tvar m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];\n\t\t\tvar m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];\n\n\t\t\torder = order || this._order;\n\n\t\t\tif ( order === 'XYZ' ) {\n\n\t\t\t\tthis._y = Math.asin( clamp( m13, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m13 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m33 );\n\t\t\t\t\tthis._z = Math.atan2( - m12, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m22 );\n\t\t\t\t\tthis._z = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'YXZ' ) {\n\n\t\t\t\tthis._x = Math.asin( - clamp( m23, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m23 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._y = Math.atan2( m13, m33 );\n\t\t\t\t\tthis._z = Math.atan2( m21, m22 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._y = Math.atan2( - m31, m11 );\n\t\t\t\t\tthis._z = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'ZXY' ) {\n\n\t\t\t\tthis._x = Math.asin( clamp( m32, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m32 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._y = Math.atan2( - m31, m33 );\n\t\t\t\t\tthis._z = Math.atan2( - m12, m22 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._y = 0;\n\t\t\t\t\tthis._z = Math.atan2( m21, m11 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'ZYX' ) {\n\n\t\t\t\tthis._y = Math.asin( - clamp( m31, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m31 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m33 );\n\t\t\t\t\tthis._z = Math.atan2( m21, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = 0;\n\t\t\t\t\tthis._z = Math.atan2( - m12, m22 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'YZX' ) {\n\n\t\t\t\tthis._z = Math.asin( clamp( m21, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m21 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m22 );\n\t\t\t\t\tthis._y = Math.atan2( - m31, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = 0;\n\t\t\t\t\tthis._y = Math.atan2( m13, m33 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'XZY' ) {\n\n\t\t\t\tthis._z = Math.asin( - clamp( m12, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m12 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m22 );\n\t\t\t\t\tthis._y = Math.atan2( m13, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m33 );\n\t\t\t\t\tthis._y = 0;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );\n\n\t\t\t}\n\n\t\t\tthis._order = order;\n\n\t\t\tif ( update !== false ) this.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromQuaternion: function () {\n\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function setFromQuaternion( q, order, update ) {\n\n\t\t\t\tmatrix.makeRotationFromQuaternion( q );\n\n\t\t\t\treturn this.setFromRotationMatrix( matrix, order, update );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromVector3: function ( v, order ) {\n\n\t\t\treturn this.set( v.x, v.y, v.z, order || this._order );\n\n\t\t},\n\n\t\treorder: function () {\n\n\t\t\t// WARNING: this discards revolution information -bhouston\n\n\t\t\tvar q = new Quaternion();\n\n\t\t\treturn function reorder( newOrder ) {\n\n\t\t\t\tq.setFromEuler( this );\n\n\t\t\t\treturn this.setFromQuaternion( q, newOrder );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tequals: function ( euler ) {\n\n\t\t\treturn ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );\n\n\t\t},\n\n\t\tfromArray: function ( array ) {\n\n\t\t\tthis._x = array[ 0 ];\n\t\t\tthis._y = array[ 1 ];\n\t\t\tthis._z = array[ 2 ];\n\t\t\tif ( array[ 3 ] !== undefined ) this._order = array[ 3 ];\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this._x;\n\t\t\tarray[ offset + 1 ] = this._y;\n\t\t\tarray[ offset + 2 ] = this._z;\n\t\t\tarray[ offset + 3 ] = this._order;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\ttoVector3: function ( optionalResult ) {\n\n\t\t\tif ( optionalResult ) {\n\n\t\t\t\treturn optionalResult.set( this._x, this._y, this._z );\n\n\t\t\t} else {\n\n\t\t\t\treturn new Vector3( this._x, this._y, this._z );\n\n\t\t\t}\n\n\t\t},\n\n\t\tonChange: function ( callback ) {\n\n\t\t\tthis.onChangeCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonChangeCallback: function () {}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Layers() {\n\n\t\tthis.mask = 1 | 0;\n\n\t}\n\n\tObject.assign( Layers.prototype, {\n\n\t\tset: function ( channel ) {\n\n\t\t\tthis.mask = 1 << channel | 0;\n\n\t\t},\n\n\t\tenable: function ( channel ) {\n\n\t\t\tthis.mask |= 1 << channel | 0;\n\n\t\t},\n\n\t\ttoggle: function ( channel ) {\n\n\t\t\tthis.mask ^= 1 << channel | 0;\n\n\t\t},\n\n\t\tdisable: function ( channel ) {\n\n\t\t\tthis.mask &= ~ ( 1 << channel | 0 );\n\n\t\t},\n\n\t\ttest: function ( layers ) {\n\n\t\t\treturn ( this.mask & layers.mask ) !== 0;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author elephantatwork / www.elephantatwork.ch\n\t */\n\n\tvar object3DId = 0;\n\n\tfunction Object3D() {\n\n\t\tObject.defineProperty( this, 'id', { value: object3DId ++ } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Object3D';\n\n\t\tthis.parent = null;\n\t\tthis.children = [];\n\n\t\tthis.up = Object3D.DefaultUp.clone();\n\n\t\tvar position = new Vector3();\n\t\tvar rotation = new Euler();\n\t\tvar quaternion = new Quaternion();\n\t\tvar scale = new Vector3( 1, 1, 1 );\n\n\t\tfunction onRotationChange() {\n\n\t\t\tquaternion.setFromEuler( rotation, false );\n\n\t\t}\n\n\t\tfunction onQuaternionChange() {\n\n\t\t\trotation.setFromQuaternion( quaternion, undefined, false );\n\n\t\t}\n\n\t\trotation.onChange( onRotationChange );\n\t\tquaternion.onChange( onQuaternionChange );\n\n\t\tObject.defineProperties( this, {\n\t\t\tposition: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: position\n\t\t\t},\n\t\t\trotation: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: rotation\n\t\t\t},\n\t\t\tquaternion: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: quaternion\n\t\t\t},\n\t\t\tscale: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: scale\n\t\t\t},\n\t\t\tmodelViewMatrix: {\n\t\t\t\tvalue: new Matrix4()\n\t\t\t},\n\t\t\tnormalMatrix: {\n\t\t\t\tvalue: new Matrix3()\n\t\t\t}\n\t\t} );\n\n\t\tthis.matrix = new Matrix4();\n\t\tthis.matrixWorld = new Matrix4();\n\n\t\tthis.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;\n\t\tthis.matrixWorldNeedsUpdate = false;\n\n\t\tthis.layers = new Layers();\n\t\tthis.visible = true;\n\n\t\tthis.castShadow = false;\n\t\tthis.receiveShadow = false;\n\n\t\tthis.frustumCulled = true;\n\t\tthis.renderOrder = 0;\n\n\t\tthis.userData = {};\n\n\t}\n\n\tObject3D.DefaultUp = new Vector3( 0, 1, 0 );\n\tObject3D.DefaultMatrixAutoUpdate = true;\n\n\tObject3D.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Object3D,\n\n\t\tisObject3D: true,\n\n\t\tonBeforeRender: function () {},\n\t\tonAfterRender: function () {},\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tthis.matrix.multiplyMatrices( matrix, this.matrix );\n\n\t\t\tthis.matrix.decompose( this.position, this.quaternion, this.scale );\n\n\t\t},\n\n\t\tapplyQuaternion: function ( q ) {\n\n\t\t\tthis.quaternion.premultiply( q );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetRotationFromAxisAngle: function ( axis, angle ) {\n\n\t\t\t// assumes axis is normalized\n\n\t\t\tthis.quaternion.setFromAxisAngle( axis, angle );\n\n\t\t},\n\n\t\tsetRotationFromEuler: function ( euler ) {\n\n\t\t\tthis.quaternion.setFromEuler( euler, true );\n\n\t\t},\n\n\t\tsetRotationFromMatrix: function ( m ) {\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tthis.quaternion.setFromRotationMatrix( m );\n\n\t\t},\n\n\t\tsetRotationFromQuaternion: function ( q ) {\n\n\t\t\t// assumes q is normalized\n\n\t\t\tthis.quaternion.copy( q );\n\n\t\t},\n\n\t\trotateOnAxis: function () {\n\n\t\t\t// rotate object on axis in object space\n\t\t\t// axis is assumed to be normalized\n\n\t\t\tvar q1 = new Quaternion();\n\n\t\t\treturn function rotateOnAxis( axis, angle ) {\n\n\t\t\t\tq1.setFromAxisAngle( axis, angle );\n\n\t\t\t\tthis.quaternion.multiply( q1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateOnWorldAxis: function () {\n\n\t\t\t// rotate object on axis in world space\n\t\t\t// axis is assumed to be normalized\n\t\t\t// method assumes no rotated parent\n\n\t\t\tvar q1 = new Quaternion();\n\n\t\t\treturn function rotateOnWorldAxis( axis, angle ) {\n\n\t\t\t\tq1.setFromAxisAngle( axis, angle );\n\n\t\t\t\tthis.quaternion.premultiply( q1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateX: function () {\n\n\t\t\tvar v1 = new Vector3( 1, 0, 0 );\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 1, 0 );\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 0, 1 );\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateOnAxis: function () {\n\n\t\t\t// translate object by distance along axis in object space\n\t\t\t// axis is assumed to be normalized\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function translateOnAxis( axis, distance ) {\n\n\t\t\t\tv1.copy( axis ).applyQuaternion( this.quaternion );\n\n\t\t\t\tthis.position.add( v1.multiplyScalar( distance ) );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateX: function () {\n\n\t\t\tvar v1 = new Vector3( 1, 0, 0 );\n\n\t\t\treturn function translateX( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateY: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 1, 0 );\n\n\t\t\treturn function translateY( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateZ: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 0, 1 );\n\n\t\t\treturn function translateZ( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlocalToWorld: function ( vector ) {\n\n\t\t\treturn vector.applyMatrix4( this.matrixWorld );\n\n\t\t},\n\n\t\tworldToLocal: function () {\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function worldToLocal( vector ) {\n\n\t\t\t\treturn vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\t// This method does not support objects with rotated and/or translated parent(s)\n\n\t\t\tvar m1 = new Matrix4();\n\t\t\tvar vector = new Vector3();\n\n\t\t\treturn function lookAt( x, y, z ) {\n\n\t\t\t\tif ( x.isVector3 ) {\n\n\t\t\t\t\tvector.copy( x );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvector.set( x, y, z );\n\n\t\t\t\t}\n\n\t\t\t\tif ( this.isCamera ) {\n\n\t\t\t\t\tm1.lookAt( this.position, vector, this.up );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tm1.lookAt( vector, this.position, this.up );\n\n\t\t\t\t}\n\n\t\t\t\tthis.quaternion.setFromRotationMatrix( m1 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tadd: function ( object ) {\n\n\t\t\tif ( arguments.length > 1 ) {\n\n\t\t\t\tfor ( var i = 0; i < arguments.length; i ++ ) {\n\n\t\t\t\t\tthis.add( arguments[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tif ( object === this ) {\n\n\t\t\t\tconsole.error( \"THREE.Object3D.add: object can't be added as a child of itself.\", object );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tif ( ( object && object.isObject3D ) ) {\n\n\t\t\t\tif ( object.parent !== null ) {\n\n\t\t\t\t\tobject.parent.remove( object );\n\n\t\t\t\t}\n\n\t\t\t\tobject.parent = this;\n\t\t\t\tobject.dispatchEvent( { type: 'added' } );\n\n\t\t\t\tthis.children.push( object );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.error( \"THREE.Object3D.add: object not an instance of THREE.Object3D.\", object );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tremove: function ( object ) {\n\n\t\t\tif ( arguments.length > 1 ) {\n\n\t\t\t\tfor ( var i = 0; i < arguments.length; i ++ ) {\n\n\t\t\t\t\tthis.remove( arguments[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar index = this.children.indexOf( object );\n\n\t\t\tif ( index !== - 1 ) {\n\n\t\t\t\tobject.parent = null;\n\n\t\t\t\tobject.dispatchEvent( { type: 'removed' } );\n\n\t\t\t\tthis.children.splice( index, 1 );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetObjectById: function ( id ) {\n\n\t\t\treturn this.getObjectByProperty( 'id', id );\n\n\t\t},\n\n\t\tgetObjectByName: function ( name ) {\n\n\t\t\treturn this.getObjectByProperty( 'name', name );\n\n\t\t},\n\n\t\tgetObjectByProperty: function ( name, value ) {\n\n\t\t\tif ( this[ name ] === value ) return this;\n\n\t\t\tfor ( var i = 0, l = this.children.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = this.children[ i ];\n\t\t\t\tvar object = child.getObjectByProperty( name, value );\n\n\t\t\t\tif ( object !== undefined ) {\n\n\t\t\t\t\treturn object;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn undefined;\n\n\t\t},\n\n\t\tgetWorldPosition: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldPosition() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\treturn target.setFromMatrixPosition( this.matrixWorld );\n\n\t\t},\n\n\t\tgetWorldQuaternion: function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar scale = new Vector3();\n\n\t\t\treturn function getWorldQuaternion( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldQuaternion() target is now required' );\n\t\t\t\t\ttarget = new Quaternion();\n\n\t\t\t\t}\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.matrixWorld.decompose( position, target, scale );\n\n\t\t\t\treturn target;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetWorldScale: function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldScale( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldScale() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, target );\n\n\t\t\t\treturn target;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetWorldDirection: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldDirection( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Object3D: .getWorldDirection() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tthis.getWorldQuaternion( quaternion );\n\n\t\t\t\treturn target.set( 0, 0, 1 ).applyQuaternion( quaternion );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\traycast: function () {},\n\n\t\ttraverse: function ( callback ) {\n\n\t\t\tcallback( this );\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].traverse( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttraverseVisible: function ( callback ) {\n\n\t\t\tif ( this.visible === false ) return;\n\n\t\t\tcallback( this );\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].traverseVisible( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttraverseAncestors: function ( callback ) {\n\n\t\t\tvar parent = this.parent;\n\n\t\t\tif ( parent !== null ) {\n\n\t\t\t\tcallback( parent );\n\n\t\t\t\tparent.traverseAncestors( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdateMatrix: function () {\n\n\t\t\tthis.matrix.compose( this.position, this.quaternion, this.scale );\n\n\t\t\tthis.matrixWorldNeedsUpdate = true;\n\n\t\t},\n\n\t\tupdateMatrixWorld: function ( force ) {\n\n\t\t\tif ( this.matrixAutoUpdate ) this.updateMatrix();\n\n\t\t\tif ( this.matrixWorldNeedsUpdate || force ) {\n\n\t\t\t\tif ( this.parent === null ) {\n\n\t\t\t\t\tthis.matrixWorld.copy( this.matrix );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );\n\n\t\t\t\t}\n\n\t\t\t\tthis.matrixWorldNeedsUpdate = false;\n\n\t\t\t\tforce = true;\n\n\t\t\t}\n\n\t\t\t// update children\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].updateMatrixWorld( force );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\t// meta is a string when called from JSON.stringify\n\t\t\tvar isRootObject = ( meta === undefined || typeof meta === 'string' );\n\n\t\t\tvar output = {};\n\n\t\t\t// meta is a hash used to collect geometries, materials.\n\t\t\t// not providing it implies that this is the root object\n\t\t\t// being serialized.\n\t\t\tif ( isRootObject ) {\n\n\t\t\t\t// initialize meta obj\n\t\t\t\tmeta = {\n\t\t\t\t\tgeometries: {},\n\t\t\t\t\tmaterials: {},\n\t\t\t\t\ttextures: {},\n\t\t\t\t\timages: {},\n\t\t\t\t\tshapes: {}\n\t\t\t\t};\n\n\t\t\t\toutput.metadata = {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Object',\n\t\t\t\t\tgenerator: 'Object3D.toJSON'\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\t// standard Object3D serialization\n\n\t\t\tvar object = {};\n\n\t\t\tobject.uuid = this.uuid;\n\t\t\tobject.type = this.type;\n\n\t\t\tif ( this.name !== '' ) object.name = this.name;\n\t\t\tif ( this.castShadow === true ) object.castShadow = true;\n\t\t\tif ( this.receiveShadow === true ) object.receiveShadow = true;\n\t\t\tif ( this.visible === false ) object.visible = false;\n\t\t\tif ( this.frustumCulled === false ) object.frustumCulled = false;\n\t\t\tif ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder;\n\t\t\tif ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;\n\n\t\t\tobject.layers = this.layers.mask;\n\t\t\tobject.matrix = this.matrix.toArray();\n\n\t\t\tif ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false;\n\n\t\t\t//\n\n\t\t\tfunction serialize( library, element ) {\n\n\t\t\t\tif ( library[ element.uuid ] === undefined ) {\n\n\t\t\t\t\tlibrary[ element.uuid ] = element.toJSON( meta );\n\n\t\t\t\t}\n\n\t\t\t\treturn element.uuid;\n\n\t\t\t}\n\n\t\t\tif ( this.isMesh || this.isLine || this.isPoints ) {\n\n\t\t\t\tobject.geometry = serialize( meta.geometries, this.geometry );\n\n\t\t\t\tvar parameters = this.geometry.parameters;\n\n\t\t\t\tif ( parameters !== undefined && parameters.shapes !== undefined ) {\n\n\t\t\t\t\tvar shapes = parameters.shapes;\n\n\t\t\t\t\tif ( Array.isArray( shapes ) ) {\n\n\t\t\t\t\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tvar shape = shapes[ i ];\n\n\t\t\t\t\t\t\tserialize( meta.shapes, shape );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tserialize( meta.shapes, shapes );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.material !== undefined ) {\n\n\t\t\t\tif ( Array.isArray( this.material ) ) {\n\n\t\t\t\t\tvar uuids = [];\n\n\t\t\t\t\tfor ( var i = 0, l = this.material.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tuuids.push( serialize( meta.materials, this.material[ i ] ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tobject.material = uuids;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tobject.material = serialize( meta.materials, this.material );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( this.children.length > 0 ) {\n\n\t\t\t\tobject.children = [];\n\n\t\t\t\tfor ( var i = 0; i < this.children.length; i ++ ) {\n\n\t\t\t\t\tobject.children.push( this.children[ i ].toJSON( meta ).object );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( isRootObject ) {\n\n\t\t\t\tvar geometries = extractFromCache( meta.geometries );\n\t\t\t\tvar materials = extractFromCache( meta.materials );\n\t\t\t\tvar textures = extractFromCache( meta.textures );\n\t\t\t\tvar images = extractFromCache( meta.images );\n\t\t\t\tvar shapes = extractFromCache( meta.shapes );\n\n\t\t\t\tif ( geometries.length > 0 ) output.geometries = geometries;\n\t\t\t\tif ( materials.length > 0 ) output.materials = materials;\n\t\t\t\tif ( textures.length > 0 ) output.textures = textures;\n\t\t\t\tif ( images.length > 0 ) output.images = images;\n\t\t\t\tif ( shapes.length > 0 ) output.shapes = shapes;\n\n\t\t\t}\n\n\t\t\toutput.object = object;\n\n\t\t\treturn output;\n\n\t\t\t// extract data from the cache hash\n\t\t\t// remove metadata on each item\n\t\t\t// and return as array\n\t\t\tfunction extractFromCache( cache ) {\n\n\t\t\t\tvar values = [];\n\t\t\t\tfor ( var key in cache ) {\n\n\t\t\t\t\tvar data = cache[ key ];\n\t\t\t\t\tdelete data.metadata;\n\t\t\t\t\tvalues.push( data );\n\n\t\t\t\t}\n\t\t\t\treturn values;\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function ( recursive ) {\n\n\t\t\treturn new this.constructor().copy( this, recursive );\n\n\t\t},\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tif ( recursive === undefined ) recursive = true;\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.up.copy( source.up );\n\n\t\t\tthis.position.copy( source.position );\n\t\t\tthis.quaternion.copy( source.quaternion );\n\t\t\tthis.scale.copy( source.scale );\n\n\t\t\tthis.matrix.copy( source.matrix );\n\t\t\tthis.matrixWorld.copy( source.matrixWorld );\n\n\t\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\t\t\tthis.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;\n\n\t\t\tthis.layers.mask = source.layers.mask;\n\t\t\tthis.visible = source.visible;\n\n\t\t\tthis.castShadow = source.castShadow;\n\t\t\tthis.receiveShadow = source.receiveShadow;\n\n\t\t\tthis.frustumCulled = source.frustumCulled;\n\t\t\tthis.renderOrder = source.renderOrder;\n\n\t\t\tthis.userData = JSON.parse( JSON.stringify( source.userData ) );\n\n\t\t\tif ( recursive === true ) {\n\n\t\t\t\tfor ( var i = 0; i < source.children.length; i ++ ) {\n\n\t\t\t\t\tvar child = source.children[ i ];\n\t\t\t\t\tthis.add( child.clone() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author WestLangley / http://github.com/WestLangley\n\t*/\n\n\tfunction Camera() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Camera';\n\n\t\tthis.matrixWorldInverse = new Matrix4();\n\t\tthis.projectionMatrix = new Matrix4();\n\n\t}\n\n\tCamera.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Camera,\n\n\t\tisCamera: true,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source, recursive );\n\n\t\t\tthis.matrixWorldInverse.copy( source.matrixWorldInverse );\n\t\t\tthis.projectionMatrix.copy( source.projectionMatrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetWorldDirection: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldDirection( target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Camera: .getWorldDirection() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tthis.getWorldQuaternion( quaternion );\n\n\t\t\t\treturn target.set( 0, 0, - 1 ).applyQuaternion( quaternion );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tupdateMatrixWorld: function ( force ) {\n\n\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\tthis.matrixWorldInverse.getInverse( this.matrixWorld );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author arose / http://github.com/arose\n\t */\n\n\tfunction OrthographicCamera( left, right, top, bottom, near, far ) {\n\n\t\tCamera.call( this );\n\n\t\tthis.type = 'OrthographicCamera';\n\n\t\tthis.zoom = 1;\n\t\tthis.view = null;\n\n\t\tthis.left = left;\n\t\tthis.right = right;\n\t\tthis.top = top;\n\t\tthis.bottom = bottom;\n\n\t\tthis.near = ( near !== undefined ) ? near : 0.1;\n\t\tthis.far = ( far !== undefined ) ? far : 2000;\n\n\t\tthis.updateProjectionMatrix();\n\n\t}\n\n\tOrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {\n\n\t\tconstructor: OrthographicCamera,\n\n\t\tisOrthographicCamera: true,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tCamera.prototype.copy.call( this, source, recursive );\n\n\t\t\tthis.left = source.left;\n\t\t\tthis.right = source.right;\n\t\t\tthis.top = source.top;\n\t\t\tthis.bottom = source.bottom;\n\t\t\tthis.near = source.near;\n\t\t\tthis.far = source.far;\n\n\t\t\tthis.zoom = source.zoom;\n\t\t\tthis.view = source.view === null ? null : Object.assign( {}, source.view );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {\n\n\t\t\tif ( this.view === null ) {\n\n\t\t\t\tthis.view = {\n\t\t\t\t\tenabled: true,\n\t\t\t\t\tfullWidth: 1,\n\t\t\t\t\tfullHeight: 1,\n\t\t\t\t\toffsetX: 0,\n\t\t\t\t\toffsetY: 0,\n\t\t\t\t\twidth: 1,\n\t\t\t\t\theight: 1\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tthis.view.enabled = true;\n\t\t\tthis.view.fullWidth = fullWidth;\n\t\t\tthis.view.fullHeight = fullHeight;\n\t\t\tthis.view.offsetX = x;\n\t\t\tthis.view.offsetY = y;\n\t\t\tthis.view.width = width;\n\t\t\tthis.view.height = height;\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tclearViewOffset: function () {\n\n\t\t\tif ( this.view !== null ) {\n\n\t\t\t\tthis.view.enabled = false;\n\n\t\t\t}\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tupdateProjectionMatrix: function () {\n\n\t\t\tvar dx = ( this.right - this.left ) / ( 2 * this.zoom );\n\t\t\tvar dy = ( this.top - this.bottom ) / ( 2 * this.zoom );\n\t\t\tvar cx = ( this.right + this.left ) / 2;\n\t\t\tvar cy = ( this.top + this.bottom ) / 2;\n\n\t\t\tvar left = cx - dx;\n\t\t\tvar right = cx + dx;\n\t\t\tvar top = cy + dy;\n\t\t\tvar bottom = cy - dy;\n\n\t\t\tif ( this.view !== null && this.view.enabled ) {\n\n\t\t\t\tvar zoomW = this.zoom / ( this.view.width / this.view.fullWidth );\n\t\t\t\tvar zoomH = this.zoom / ( this.view.height / this.view.fullHeight );\n\t\t\t\tvar scaleW = ( this.right - this.left ) / this.view.width;\n\t\t\t\tvar scaleH = ( this.top - this.bottom ) / this.view.height;\n\n\t\t\t\tleft += scaleW * ( this.view.offsetX / zoomW );\n\t\t\t\tright = left + scaleW * ( this.view.width / zoomW );\n\t\t\t\ttop -= scaleH * ( this.view.offsetY / zoomH );\n\t\t\t\tbottom = top - scaleH * ( this.view.height / zoomH );\n\n\t\t\t}\n\n\t\t\tthis.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.zoom = this.zoom;\n\t\t\tdata.object.left = this.left;\n\t\t\tdata.object.right = this.right;\n\t\t\tdata.object.top = this.top;\n\t\t\tdata.object.bottom = this.bottom;\n\t\t\tdata.object.near = this.near;\n\t\t\tdata.object.far = this.far;\n\n\t\t\tif ( this.view !== null ) data.object.view = Object.assign( {}, this.view );\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Face3( a, b, c, normal, color, materialIndex ) {\n\n\t\tthis.a = a;\n\t\tthis.b = b;\n\t\tthis.c = c;\n\n\t\tthis.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();\n\t\tthis.vertexNormals = Array.isArray( normal ) ? normal : [];\n\n\t\tthis.color = ( color && color.isColor ) ? color : new Color();\n\t\tthis.vertexColors = Array.isArray( color ) ? color : [];\n\n\t\tthis.materialIndex = materialIndex !== undefined ? materialIndex : 0;\n\n\t}\n\n\tObject.assign( Face3.prototype, {\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.a = source.a;\n\t\t\tthis.b = source.b;\n\t\t\tthis.c = source.c;\n\n\t\t\tthis.normal.copy( source.normal );\n\t\t\tthis.color.copy( source.color );\n\n\t\t\tthis.materialIndex = source.materialIndex;\n\n\t\t\tfor ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertexNormals[ i ] = source.vertexNormals[ i ].clone();\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertexColors[ i ] = source.vertexColors[ i ].clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author kile / http://kile.stravaganza.org/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author bhouston / http://clara.io\n\t */\n\n\tvar geometryId = 0; // Geometry uses even numbers as Id\n\n\tfunction Geometry() {\n\n\t\tObject.defineProperty( this, 'id', { value: geometryId += 2 } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Geometry';\n\n\t\tthis.vertices = [];\n\t\tthis.colors = [];\n\t\tthis.faces = [];\n\t\tthis.faceVertexUvs = [[]];\n\n\t\tthis.morphTargets = [];\n\t\tthis.morphNormals = [];\n\n\t\tthis.skinWeights = [];\n\t\tthis.skinIndices = [];\n\n\t\tthis.lineDistances = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\t// update flags\n\n\t\tthis.elementsNeedUpdate = false;\n\t\tthis.verticesNeedUpdate = false;\n\t\tthis.uvsNeedUpdate = false;\n\t\tthis.normalsNeedUpdate = false;\n\t\tthis.colorsNeedUpdate = false;\n\t\tthis.lineDistancesNeedUpdate = false;\n\t\tthis.groupsNeedUpdate = false;\n\n\t}\n\n\tGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Geometry,\n\n\t\tisGeometry: true,\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tvar normalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\tfor ( var i = 0, il = this.vertices.length; i < il; i ++ ) {\n\n\t\t\t\tvar vertex = this.vertices[ i ];\n\t\t\t\tvertex.applyMatrix4( matrix );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, il = this.faces.length; i < il; i ++ ) {\n\n\t\t\t\tvar face = this.faces[ i ];\n\t\t\t\tface.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\tfor ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\tface.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.boundingBox !== null ) {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tif ( this.boundingSphere !== null ) {\n\n\t\t\t\tthis.computeBoundingSphere();\n\n\t\t\t}\n\n\t\t\tthis.verticesNeedUpdate = true;\n\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateX: function () {\n\n\t\t\t// rotate geometry around world x-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\tm1.makeRotationX( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\t// rotate geometry around world y-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\tm1.makeRotationY( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\t// rotate geometry around world z-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\tm1.makeRotationZ( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function () {\n\n\t\t\t// translate geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function translate( x, y, z ) {\n\n\t\t\t\tm1.makeTranslation( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tscale: function () {\n\n\t\t\t// scale geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function scale( x, y, z ) {\n\n\t\t\t\tm1.makeScale( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar obj = new Object3D();\n\n\t\t\treturn function lookAt( vector ) {\n\n\t\t\t\tobj.lookAt( vector );\n\n\t\t\t\tobj.updateMatrix();\n\n\t\t\t\tthis.applyMatrix( obj.matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tfromBufferGeometry: function ( geometry ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar indices = geometry.index !== null ? geometry.index.array : undefined;\n\t\t\tvar attributes = geometry.attributes;\n\n\t\t\tvar positions = attributes.position.array;\n\t\t\tvar normals = attributes.normal !== undefined ? attributes.normal.array : undefined;\n\t\t\tvar colors = attributes.color !== undefined ? attributes.color.array : undefined;\n\t\t\tvar uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;\n\t\t\tvar uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;\n\n\t\t\tif ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];\n\n\t\t\tvar tempNormals = [];\n\t\t\tvar tempUVs = [];\n\t\t\tvar tempUVs2 = [];\n\n\t\t\tfor ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {\n\n\t\t\t\tscope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );\n\n\t\t\t\tif ( normals !== undefined ) {\n\n\t\t\t\t\ttempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( colors !== undefined ) {\n\n\t\t\t\t\tscope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs !== undefined ) {\n\n\t\t\t\t\ttempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs2 !== undefined ) {\n\n\t\t\t\t\ttempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction addFace( a, b, c, materialIndex ) {\n\n\t\t\t\tvar vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];\n\t\t\t\tvar vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];\n\n\t\t\t\tvar face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );\n\n\t\t\t\tscope.faces.push( face );\n\n\t\t\t\tif ( uvs !== undefined ) {\n\n\t\t\t\t\tscope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs2 !== undefined ) {\n\n\t\t\t\t\tscope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar groups = geometry.groups;\n\n\t\t\tif ( groups.length > 0 ) {\n\n\t\t\t\tfor ( var i = 0; i < groups.length; i ++ ) {\n\n\t\t\t\t\tvar group = groups[ i ];\n\n\t\t\t\t\tvar start = group.start;\n\t\t\t\t\tvar count = group.count;\n\n\t\t\t\t\tfor ( var j = start, jl = start + count; j < jl; j += 3 ) {\n\n\t\t\t\t\t\tif ( indices !== undefined ) {\n\n\t\t\t\t\t\t\taddFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\taddFace( j, j + 1, j + 2, group.materialIndex );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tif ( indices !== undefined ) {\n\n\t\t\t\t\tfor ( var i = 0; i < indices.length; i += 3 ) {\n\n\t\t\t\t\t\taddFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfor ( var i = 0; i < positions.length / 3; i += 3 ) {\n\n\t\t\t\t\t\taddFace( i, i + 1, i + 2 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.computeFaceNormals();\n\n\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t}\n\n\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcenter: function () {\n\n\t\t\tvar offset = new Vector3();\n\n\t\t\treturn function center() {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t\tthis.boundingBox.getCenter( offset ).negate();\n\n\t\t\t\tthis.translate( offset.x, offset.y, offset.z );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tnormalize: function () {\n\n\t\t\tthis.computeBoundingSphere();\n\n\t\t\tvar center = this.boundingSphere.center;\n\t\t\tvar radius = this.boundingSphere.radius;\n\n\t\t\tvar s = radius === 0 ? 1 : 1.0 / radius;\n\n\t\t\tvar matrix = new Matrix4();\n\t\t\tmatrix.set(\n\t\t\t\ts, 0, 0, - s * center.x,\n\t\t\t\t0, s, 0, - s * center.y,\n\t\t\t\t0, 0, s, - s * center.z,\n\t\t\t\t0, 0, 0, 1\n\t\t\t);\n\n\t\t\tthis.applyMatrix( matrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcomputeFaceNormals: function () {\n\n\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\tfor ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tvar face = this.faces[ f ];\n\n\t\t\t\tvar vA = this.vertices[ face.a ];\n\t\t\t\tvar vB = this.vertices[ face.b ];\n\t\t\t\tvar vC = this.vertices[ face.c ];\n\n\t\t\t\tcb.subVectors( vC, vB );\n\t\t\t\tab.subVectors( vA, vB );\n\t\t\t\tcb.cross( ab );\n\n\t\t\t\tcb.normalize();\n\n\t\t\t\tface.normal.copy( cb );\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeVertexNormals: function ( areaWeighted ) {\n\n\t\t\tif ( areaWeighted === undefined ) areaWeighted = true;\n\n\t\t\tvar v, vl, f, fl, face, vertices;\n\n\t\t\tvertices = new Array( this.vertices.length );\n\n\t\t\tfor ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {\n\n\t\t\t\tvertices[ v ] = new Vector3();\n\n\t\t\t}\n\n\t\t\tif ( areaWeighted ) {\n\n\t\t\t\t// vertex normals weighted by triangle areas\n\t\t\t\t// http://www.iquilezles.org/www/articles/normals/normals.htm\n\n\t\t\t\tvar vA, vB, vC;\n\t\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tvA = this.vertices[ face.a ];\n\t\t\t\t\tvB = this.vertices[ face.b ];\n\t\t\t\t\tvC = this.vertices[ face.c ];\n\n\t\t\t\t\tcb.subVectors( vC, vB );\n\t\t\t\t\tab.subVectors( vA, vB );\n\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\tvertices[ face.a ].add( cb );\n\t\t\t\t\tvertices[ face.b ].add( cb );\n\t\t\t\t\tvertices[ face.c ].add( cb );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tthis.computeFaceNormals();\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tvertices[ face.a ].add( face.normal );\n\t\t\t\t\tvertices[ face.b ].add( face.normal );\n\t\t\t\t\tvertices[ face.c ].add( face.normal );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {\n\n\t\t\t\tvertices[ v ].normalize();\n\n\t\t\t}\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tvertexNormals[ 0 ].copy( vertices[ face.a ] );\n\t\t\t\t\tvertexNormals[ 1 ].copy( vertices[ face.b ] );\n\t\t\t\t\tvertexNormals[ 2 ].copy( vertices[ face.c ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvertexNormals[ 0 ] = vertices[ face.a ].clone();\n\t\t\t\t\tvertexNormals[ 1 ] = vertices[ face.b ].clone();\n\t\t\t\t\tvertexNormals[ 2 ] = vertices[ face.c ].clone();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.faces.length > 0 ) {\n\n\t\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeFlatVertexNormals: function () {\n\n\t\t\tvar f, fl, face;\n\n\t\t\tthis.computeFaceNormals();\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tvertexNormals[ 0 ].copy( face.normal );\n\t\t\t\t\tvertexNormals[ 1 ].copy( face.normal );\n\t\t\t\t\tvertexNormals[ 2 ].copy( face.normal );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvertexNormals[ 0 ] = face.normal.clone();\n\t\t\t\t\tvertexNormals[ 1 ] = face.normal.clone();\n\t\t\t\t\tvertexNormals[ 2 ] = face.normal.clone();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.faces.length > 0 ) {\n\n\t\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeMorphNormals: function () {\n\n\t\t\tvar i, il, f, fl, face;\n\n\t\t\t// save original normals\n\t\t\t// - create temp variables on first access\n\t\t\t// otherwise just copy (for faster repeated calls)\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tif ( ! face.__originalFaceNormal ) {\n\n\t\t\t\t\tface.__originalFaceNormal = face.normal.clone();\n\n\t\t\t\t} else {\n\n\t\t\t\t\tface.__originalFaceNormal.copy( face.normal );\n\n\t\t\t\t}\n\n\t\t\t\tif ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];\n\n\t\t\t\tfor ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {\n\n\t\t\t\t\tif ( ! face.__originalVertexNormals[ i ] ) {\n\n\t\t\t\t\t\tface.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tface.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// use temp geometry to compute face and vertex normals for each morph\n\n\t\t\tvar tmpGeo = new Geometry();\n\t\t\ttmpGeo.faces = this.faces;\n\n\t\t\tfor ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\t// create on first access\n\n\t\t\t\tif ( ! this.morphNormals[ i ] ) {\n\n\t\t\t\t\tthis.morphNormals[ i ] = {};\n\t\t\t\t\tthis.morphNormals[ i ].faceNormals = [];\n\t\t\t\t\tthis.morphNormals[ i ].vertexNormals = [];\n\n\t\t\t\t\tvar dstNormalsFace = this.morphNormals[ i ].faceNormals;\n\t\t\t\t\tvar dstNormalsVertex = this.morphNormals[ i ].vertexNormals;\n\n\t\t\t\t\tvar faceNormal, vertexNormals;\n\n\t\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\t\tfaceNormal = new Vector3();\n\t\t\t\t\t\tvertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };\n\n\t\t\t\t\t\tdstNormalsFace.push( faceNormal );\n\t\t\t\t\t\tdstNormalsVertex.push( vertexNormals );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar morphNormals = this.morphNormals[ i ];\n\n\t\t\t\t// set vertices to morph target\n\n\t\t\t\ttmpGeo.vertices = this.morphTargets[ i ].vertices;\n\n\t\t\t\t// compute morph normals\n\n\t\t\t\ttmpGeo.computeFaceNormals();\n\t\t\t\ttmpGeo.computeVertexNormals();\n\n\t\t\t\t// store morph normals\n\n\t\t\t\tvar faceNormal, vertexNormals;\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tfaceNormal = morphNormals.faceNormals[ f ];\n\t\t\t\t\tvertexNormals = morphNormals.vertexNormals[ f ];\n\n\t\t\t\t\tfaceNormal.copy( face.normal );\n\n\t\t\t\t\tvertexNormals.a.copy( face.vertexNormals[ 0 ] );\n\t\t\t\t\tvertexNormals.b.copy( face.vertexNormals[ 1 ] );\n\t\t\t\t\tvertexNormals.c.copy( face.vertexNormals[ 2 ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// restore original normals\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tface.normal = face.__originalFaceNormal;\n\t\t\t\tface.vertexNormals = face.__originalVertexNormals;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeBoundingBox: function () {\n\n\t\t\tif ( this.boundingBox === null ) {\n\n\t\t\t\tthis.boundingBox = new Box3();\n\n\t\t\t}\n\n\t\t\tthis.boundingBox.setFromPoints( this.vertices );\n\n\t\t},\n\n\t\tcomputeBoundingSphere: function () {\n\n\t\t\tif ( this.boundingSphere === null ) {\n\n\t\t\t\tthis.boundingSphere = new Sphere();\n\n\t\t\t}\n\n\t\t\tthis.boundingSphere.setFromPoints( this.vertices );\n\n\t\t},\n\n\t\tmerge: function ( geometry, matrix, materialIndexOffset ) {\n\n\t\t\tif ( ! ( geometry && geometry.isGeometry ) ) {\n\n\t\t\t\tconsole.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar normalMatrix,\n\t\t\t\tvertexOffset = this.vertices.length,\n\t\t\t\tvertices1 = this.vertices,\n\t\t\t\tvertices2 = geometry.vertices,\n\t\t\t\tfaces1 = this.faces,\n\t\t\t\tfaces2 = geometry.faces,\n\t\t\t\tuvs1 = this.faceVertexUvs[ 0 ],\n\t\t\t\tuvs2 = geometry.faceVertexUvs[ 0 ],\n\t\t\t\tcolors1 = this.colors,\n\t\t\t\tcolors2 = geometry.colors;\n\n\t\t\tif ( materialIndexOffset === undefined ) materialIndexOffset = 0;\n\n\t\t\tif ( matrix !== undefined ) {\n\n\t\t\t\tnormalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\t}\n\n\t\t\t// vertices\n\n\t\t\tfor ( var i = 0, il = vertices2.length; i < il; i ++ ) {\n\n\t\t\t\tvar vertex = vertices2[ i ];\n\n\t\t\t\tvar vertexCopy = vertex.clone();\n\n\t\t\t\tif ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );\n\n\t\t\t\tvertices1.push( vertexCopy );\n\n\t\t\t}\n\n\t\t\t// colors\n\n\t\t\tfor ( var i = 0, il = colors2.length; i < il; i ++ ) {\n\n\t\t\t\tcolors1.push( colors2[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// faces\n\n\t\t\tfor ( i = 0, il = faces2.length; i < il; i ++ ) {\n\n\t\t\t\tvar face = faces2[ i ], faceCopy, normal, color,\n\t\t\t\t\tfaceVertexNormals = face.vertexNormals,\n\t\t\t\t\tfaceVertexColors = face.vertexColors;\n\n\t\t\t\tfaceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );\n\t\t\t\tfaceCopy.normal.copy( face.normal );\n\n\t\t\t\tif ( normalMatrix !== undefined ) {\n\n\t\t\t\t\tfaceCopy.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\tnormal = faceVertexNormals[ j ].clone();\n\n\t\t\t\t\tif ( normalMatrix !== undefined ) {\n\n\t\t\t\t\t\tnormal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfaceCopy.vertexNormals.push( normal );\n\n\t\t\t\t}\n\n\t\t\t\tfaceCopy.color.copy( face.color );\n\n\t\t\t\tfor ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {\n\n\t\t\t\t\tcolor = faceVertexColors[ j ];\n\t\t\t\t\tfaceCopy.vertexColors.push( color.clone() );\n\n\t\t\t\t}\n\n\t\t\t\tfaceCopy.materialIndex = face.materialIndex + materialIndexOffset;\n\n\t\t\t\tfaces1.push( faceCopy );\n\n\t\t\t}\n\n\t\t\t// uvs\n\n\t\t\tfor ( i = 0, il = uvs2.length; i < il; i ++ ) {\n\n\t\t\t\tvar uv = uvs2[ i ], uvCopy = [];\n\n\t\t\t\tif ( uv === undefined ) {\n\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0, jl = uv.length; j < jl; j ++ ) {\n\n\t\t\t\t\tuvCopy.push( uv[ j ].clone() );\n\n\t\t\t\t}\n\n\t\t\t\tuvs1.push( uvCopy );\n\n\t\t\t}\n\n\t\t},\n\n\t\tmergeMesh: function ( mesh ) {\n\n\t\t\tif ( ! ( mesh && mesh.isMesh ) ) {\n\n\t\t\t\tconsole.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( mesh.matrixAutoUpdate ) mesh.updateMatrix();\n\n\t\t\tthis.merge( mesh.geometry, mesh.matrix );\n\n\t\t},\n\n\t\t/*\n\t\t * Checks for duplicate vertices with hashmap.\n\t\t * Duplicated vertices are removed\n\t\t * and faces' vertices are updated.\n\t\t */\n\n\t\tmergeVertices: function () {\n\n\t\t\tvar verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)\n\t\t\tvar unique = [], changes = [];\n\n\t\t\tvar v, key;\n\t\t\tvar precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001\n\t\t\tvar precision = Math.pow( 10, precisionPoints );\n\t\t\tvar i, il, face;\n\t\t\tvar indices, j, jl;\n\n\t\t\tfor ( i = 0, il = this.vertices.length; i < il; i ++ ) {\n\n\t\t\t\tv = this.vertices[ i ];\n\t\t\t\tkey = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );\n\n\t\t\t\tif ( verticesMap[ key ] === undefined ) {\n\n\t\t\t\t\tverticesMap[ key ] = i;\n\t\t\t\t\tunique.push( this.vertices[ i ] );\n\t\t\t\t\tchanges[ i ] = unique.length - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\t//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);\n\t\t\t\t\tchanges[ i ] = changes[ verticesMap[ key ] ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\t// if faces are completely degenerate after merging vertices, we\n\t\t\t// have to remove them from the geometry.\n\t\t\tvar faceIndicesToRemove = [];\n\n\t\t\tfor ( i = 0, il = this.faces.length; i < il; i ++ ) {\n\n\t\t\t\tface = this.faces[ i ];\n\n\t\t\t\tface.a = changes[ face.a ];\n\t\t\t\tface.b = changes[ face.b ];\n\t\t\t\tface.c = changes[ face.c ];\n\n\t\t\t\tindices = [ face.a, face.b, face.c ];\n\n\t\t\t\t// if any duplicate vertices are found in a Face3\n\t\t\t\t// we have to remove the face as nothing can be saved\n\t\t\t\tfor ( var n = 0; n < 3; n ++ ) {\n\n\t\t\t\t\tif ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {\n\n\t\t\t\t\t\tfaceIndicesToRemove.push( i );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {\n\n\t\t\t\tvar idx = faceIndicesToRemove[ i ];\n\n\t\t\t\tthis.faces.splice( idx, 1 );\n\n\t\t\t\tfor ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {\n\n\t\t\t\t\tthis.faceVertexUvs[ j ].splice( idx, 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Use unique set of vertices\n\n\t\t\tvar diff = this.vertices.length - unique.length;\n\t\t\tthis.vertices = unique;\n\t\t\treturn diff;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.vertices = [];\n\n\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tvar point = points[ i ];\n\t\t\t\tthis.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsortFacesByMaterialIndex: function () {\n\n\t\t\tvar faces = this.faces;\n\t\t\tvar length = faces.length;\n\n\t\t\t// tag faces\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tfaces[ i ]._id = i;\n\n\t\t\t}\n\n\t\t\t// sort faces\n\n\t\t\tfunction materialIndexSort( a, b ) {\n\n\t\t\t\treturn a.materialIndex - b.materialIndex;\n\n\t\t\t}\n\n\t\t\tfaces.sort( materialIndexSort );\n\n\t\t\t// sort uvs\n\n\t\t\tvar uvs1 = this.faceVertexUvs[ 0 ];\n\t\t\tvar uvs2 = this.faceVertexUvs[ 1 ];\n\n\t\t\tvar newUvs1, newUvs2;\n\n\t\t\tif ( uvs1 && uvs1.length === length ) newUvs1 = [];\n\t\t\tif ( uvs2 && uvs2.length === length ) newUvs2 = [];\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tvar id = faces[ i ]._id;\n\n\t\t\t\tif ( newUvs1 ) newUvs1.push( uvs1[ id ] );\n\t\t\t\tif ( newUvs2 ) newUvs2.push( uvs2[ id ] );\n\n\t\t\t}\n\n\t\t\tif ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;\n\t\t\tif ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Geometry',\n\t\t\t\t\tgenerator: 'Geometry.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard Geometry serialization\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\n\t\t\tif ( this.parameters !== undefined ) {\n\n\t\t\t\tvar parameters = this.parameters;\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tif ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];\n\n\t\t\t\t}\n\n\t\t\t\treturn data;\n\n\t\t\t}\n\n\t\t\tvar vertices = [];\n\n\t\t\tfor ( var i = 0; i < this.vertices.length; i ++ ) {\n\n\t\t\t\tvar vertex = this.vertices[ i ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t\tvar faces = [];\n\t\t\tvar normals = [];\n\t\t\tvar normalsHash = {};\n\t\t\tvar colors = [];\n\t\t\tvar colorsHash = {};\n\t\t\tvar uvs = [];\n\t\t\tvar uvsHash = {};\n\n\t\t\tfor ( var i = 0; i < this.faces.length; i ++ ) {\n\n\t\t\t\tvar face = this.faces[ i ];\n\n\t\t\t\tvar hasMaterial = true;\n\t\t\t\tvar hasFaceUv = false; // deprecated\n\t\t\t\tvar hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;\n\t\t\t\tvar hasFaceNormal = face.normal.length() > 0;\n\t\t\t\tvar hasFaceVertexNormal = face.vertexNormals.length > 0;\n\t\t\t\tvar hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;\n\t\t\t\tvar hasFaceVertexColor = face.vertexColors.length > 0;\n\n\t\t\t\tvar faceType = 0;\n\n\t\t\t\tfaceType = setBit( faceType, 0, 0 ); // isQuad\n\t\t\t\tfaceType = setBit( faceType, 1, hasMaterial );\n\t\t\t\tfaceType = setBit( faceType, 2, hasFaceUv );\n\t\t\t\tfaceType = setBit( faceType, 3, hasFaceVertexUv );\n\t\t\t\tfaceType = setBit( faceType, 4, hasFaceNormal );\n\t\t\t\tfaceType = setBit( faceType, 5, hasFaceVertexNormal );\n\t\t\t\tfaceType = setBit( faceType, 6, hasFaceColor );\n\t\t\t\tfaceType = setBit( faceType, 7, hasFaceVertexColor );\n\n\t\t\t\tfaces.push( faceType );\n\t\t\t\tfaces.push( face.a, face.b, face.c );\n\t\t\t\tfaces.push( face.materialIndex );\n\n\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\tvar faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 0 ] ),\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 1 ] ),\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\tfaces.push( getNormalIndex( face.normal ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 0 ] ),\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 1 ] ),\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\tfaces.push( getColorIndex( face.color ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\tvar vertexColors = face.vertexColors;\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 0 ] ),\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 1 ] ),\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction setBit( value, position, enabled ) {\n\n\t\t\t\treturn enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );\n\n\t\t\t}\n\n\t\t\tfunction getNormalIndex( normal ) {\n\n\t\t\t\tvar hash = normal.x.toString() + normal.y.toString() + normal.z.toString();\n\n\t\t\t\tif ( normalsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn normalsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tnormalsHash[ hash ] = normals.length / 3;\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\treturn normalsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tfunction getColorIndex( color ) {\n\n\t\t\t\tvar hash = color.r.toString() + color.g.toString() + color.b.toString();\n\n\t\t\t\tif ( colorsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn colorsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tcolorsHash[ hash ] = colors.length;\n\t\t\t\tcolors.push( color.getHex() );\n\n\t\t\t\treturn colorsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tfunction getUvIndex( uv ) {\n\n\t\t\t\tvar hash = uv.x.toString() + uv.y.toString();\n\n\t\t\t\tif ( uvsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn uvsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tuvsHash[ hash ] = uvs.length / 2;\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\treturn uvsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tdata.data = {};\n\n\t\t\tdata.data.vertices = vertices;\n\t\t\tdata.data.normals = normals;\n\t\t\tif ( colors.length > 0 ) data.data.colors = colors;\n\t\t\tif ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility\n\t\t\tdata.data.faces = faces;\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\t/*\n\t\t\t // Handle primitives\n\n\t\t\t var parameters = this.parameters;\n\n\t\t\t if ( parameters !== undefined ) {\n\n\t\t\t var values = [];\n\n\t\t\t for ( var key in parameters ) {\n\n\t\t\t values.push( parameters[ key ] );\n\n\t\t\t }\n\n\t\t\t var geometry = Object.create( this.constructor.prototype );\n\t\t\t this.constructor.apply( geometry, values );\n\t\t\t return geometry;\n\n\t\t\t }\n\n\t\t\t return new this.constructor().copy( this );\n\t\t\t */\n\n\t\t\treturn new Geometry().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tvar i, il, j, jl, k, kl;\n\n\t\t\t// reset\n\n\t\t\tthis.vertices = [];\n\t\t\tthis.colors = [];\n\t\t\tthis.faces = [];\n\t\t\tthis.faceVertexUvs = [[]];\n\t\t\tthis.morphTargets = [];\n\t\t\tthis.morphNormals = [];\n\t\t\tthis.skinWeights = [];\n\t\t\tthis.skinIndices = [];\n\t\t\tthis.lineDistances = [];\n\t\t\tthis.boundingBox = null;\n\t\t\tthis.boundingSphere = null;\n\n\t\t\t// name\n\n\t\t\tthis.name = source.name;\n\n\t\t\t// vertices\n\n\t\t\tvar vertices = source.vertices;\n\n\t\t\tfor ( i = 0, il = vertices.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertices.push( vertices[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// colors\n\n\t\t\tvar colors = source.colors;\n\n\t\t\tfor ( i = 0, il = colors.length; i < il; i ++ ) {\n\n\t\t\t\tthis.colors.push( colors[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// faces\n\n\t\t\tvar faces = source.faces;\n\n\t\t\tfor ( i = 0, il = faces.length; i < il; i ++ ) {\n\n\t\t\t\tthis.faces.push( faces[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// face vertex uvs\n\n\t\t\tfor ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {\n\n\t\t\t\tvar faceVertexUvs = source.faceVertexUvs[ i ];\n\n\t\t\t\tif ( this.faceVertexUvs[ i ] === undefined ) {\n\n\t\t\t\t\tthis.faceVertexUvs[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tfor ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {\n\n\t\t\t\t\tvar uvs = faceVertexUvs[ j ], uvsCopy = [];\n\n\t\t\t\t\tfor ( k = 0, kl = uvs.length; k < kl; k ++ ) {\n\n\t\t\t\t\t\tvar uv = uvs[ k ];\n\n\t\t\t\t\t\tuvsCopy.push( uv.clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.faceVertexUvs[ i ].push( uvsCopy );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// morph targets\n\n\t\t\tvar morphTargets = source.morphTargets;\n\n\t\t\tfor ( i = 0, il = morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\tvar morphTarget = {};\n\t\t\t\tmorphTarget.name = morphTargets[ i ].name;\n\n\t\t\t\t// vertices\n\n\t\t\t\tif ( morphTargets[ i ].vertices !== undefined ) {\n\n\t\t\t\t\tmorphTarget.vertices = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tmorphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// normals\n\n\t\t\t\tif ( morphTargets[ i ].normals !== undefined ) {\n\n\t\t\t\t\tmorphTarget.normals = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tmorphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.push( morphTarget );\n\n\t\t\t}\n\n\t\t\t// morph normals\n\n\t\t\tvar morphNormals = source.morphNormals;\n\n\t\t\tfor ( i = 0, il = morphNormals.length; i < il; i ++ ) {\n\n\t\t\t\tvar morphNormal = {};\n\n\t\t\t\t// vertex normals\n\n\t\t\t\tif ( morphNormals[ i ].vertexNormals !== undefined ) {\n\n\t\t\t\t\tmorphNormal.vertexNormals = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];\n\t\t\t\t\t\tvar destVertexNormal = {};\n\n\t\t\t\t\t\tdestVertexNormal.a = srcVertexNormal.a.clone();\n\t\t\t\t\t\tdestVertexNormal.b = srcVertexNormal.b.clone();\n\t\t\t\t\t\tdestVertexNormal.c = srcVertexNormal.c.clone();\n\n\t\t\t\t\t\tmorphNormal.vertexNormals.push( destVertexNormal );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// face normals\n\n\t\t\t\tif ( morphNormals[ i ].faceNormals !== undefined ) {\n\n\t\t\t\t\tmorphNormal.faceNormals = [];\n\n\t\t\t\t\tfor ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tmorphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphNormals.push( morphNormal );\n\n\t\t\t}\n\n\t\t\t// skin weights\n\n\t\t\tvar skinWeights = source.skinWeights;\n\n\t\t\tfor ( i = 0, il = skinWeights.length; i < il; i ++ ) {\n\n\t\t\t\tthis.skinWeights.push( skinWeights[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// skin indices\n\n\t\t\tvar skinIndices = source.skinIndices;\n\n\t\t\tfor ( i = 0, il = skinIndices.length; i < il; i ++ ) {\n\n\t\t\t\tthis.skinIndices.push( skinIndices[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// line distances\n\n\t\t\tvar lineDistances = source.lineDistances;\n\n\t\t\tfor ( i = 0, il = lineDistances.length; i < il; i ++ ) {\n\n\t\t\t\tthis.lineDistances.push( lineDistances[ i ] );\n\n\t\t\t}\n\n\t\t\t// bounding box\n\n\t\t\tvar boundingBox = source.boundingBox;\n\n\t\t\tif ( boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = boundingBox.clone();\n\n\t\t\t}\n\n\t\t\t// bounding sphere\n\n\t\t\tvar boundingSphere = source.boundingSphere;\n\n\t\t\tif ( boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\t// update flags\n\n\t\t\tthis.elementsNeedUpdate = source.elementsNeedUpdate;\n\t\t\tthis.verticesNeedUpdate = source.verticesNeedUpdate;\n\t\t\tthis.uvsNeedUpdate = source.uvsNeedUpdate;\n\t\t\tthis.normalsNeedUpdate = source.normalsNeedUpdate;\n\t\t\tthis.colorsNeedUpdate = source.colorsNeedUpdate;\n\t\t\tthis.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;\n\t\t\tthis.groupsNeedUpdate = source.groupsNeedUpdate;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BufferAttribute( array, itemSize, normalized ) {\n\n\t\tif ( Array.isArray( array ) ) {\n\n\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t}\n\n\t\tthis.name = '';\n\n\t\tthis.array = array;\n\t\tthis.itemSize = itemSize;\n\t\tthis.count = array !== undefined ? array.length / itemSize : 0;\n\t\tthis.normalized = normalized === true;\n\n\t\tthis.dynamic = false;\n\t\tthis.updateRange = { offset: 0, count: - 1 };\n\n\t\tthis.version = 0;\n\n\t}\n\n\tObject.defineProperty( BufferAttribute.prototype, 'needsUpdate', {\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( BufferAttribute.prototype, {\n\n\t\tisBufferAttribute: true,\n\n\t\tonUploadCallback: function () {},\n\n\t\tsetArray: function ( array ) {\n\n\t\t\tif ( Array.isArray( array ) ) {\n\n\t\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t\t}\n\n\t\t\tthis.count = array !== undefined ? array.length / this.itemSize : 0;\n\t\t\tthis.array = array;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetDynamic: function ( value ) {\n\n\t\t\tthis.dynamic = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.name = source.name;\n\t\t\tthis.array = new source.array.constructor( source.array );\n\t\t\tthis.itemSize = source.itemSize;\n\t\t\tthis.count = source.count;\n\t\t\tthis.normalized = source.normalized;\n\n\t\t\tthis.dynamic = source.dynamic;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyAt: function ( index1, attribute, index2 ) {\n\n\t\t\tindex1 *= this.itemSize;\n\t\t\tindex2 *= attribute.itemSize;\n\n\t\t\tfor ( var i = 0, l = this.itemSize; i < l; i ++ ) {\n\n\t\t\t\tthis.array[ index1 + i ] = attribute.array[ index2 + i ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyArray: function ( array ) {\n\n\t\t\tthis.array.set( array );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyColorsArray: function ( colors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = colors.length; i < l; i ++ ) {\n\n\t\t\t\tvar color = colors[ i ];\n\n\t\t\t\tif ( color === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );\n\t\t\t\t\tcolor = new Color();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = color.r;\n\t\t\t\tarray[ offset ++ ] = color.g;\n\t\t\t\tarray[ offset ++ ] = color.b;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector2sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector2();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector3sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\t\t\t\tarray[ offset ++ ] = vector.z;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector4sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector4();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\t\t\t\tarray[ offset ++ ] = vector.z;\n\t\t\t\tarray[ offset ++ ] = vector.w;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tset: function ( value, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.array.set( value, offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetX: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize ];\n\n\t\t},\n\n\t\tsetX: function ( index, x ) {\n\n\t\t\tthis.array[ index * this.itemSize ] = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetY: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 1 ];\n\n\t\t},\n\n\t\tsetY: function ( index, y ) {\n\n\t\t\tthis.array[ index * this.itemSize + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetZ: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 2 ];\n\n\t\t},\n\n\t\tsetZ: function ( index, z ) {\n\n\t\t\tthis.array[ index * this.itemSize + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetW: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 3 ];\n\n\t\t},\n\n\t\tsetW: function ( index, w ) {\n\n\t\t\tthis.array[ index * this.itemSize + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXY: function ( index, x, y ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZ: function ( index, x, y, z ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\t\t\tthis.array[ index + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZW: function ( index, x, y, z, w ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\t\t\tthis.array[ index + 2 ] = z;\n\t\t\tthis.array[ index + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonUpload: function ( callback ) {\n\n\t\t\tthis.onUploadCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.array, this.itemSize ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tfunction Int8BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );\n\n\t}\n\n\tInt8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tInt8BufferAttribute.prototype.constructor = Int8BufferAttribute;\n\n\n\tfunction Uint8BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );\n\n\t}\n\n\tUint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;\n\n\n\tfunction Uint8ClampedBufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );\n\n\t}\n\n\tUint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;\n\n\n\tfunction Int16BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );\n\n\t}\n\n\tInt16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tInt16BufferAttribute.prototype.constructor = Int16BufferAttribute;\n\n\n\tfunction Uint16BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );\n\n\t}\n\n\tUint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;\n\n\n\tfunction Int32BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );\n\n\t}\n\n\tInt32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tInt32BufferAttribute.prototype.constructor = Int32BufferAttribute;\n\n\n\tfunction Uint32BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );\n\n\t}\n\n\tUint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tUint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;\n\n\n\tfunction Float32BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );\n\n\t}\n\n\tFloat32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tFloat32BufferAttribute.prototype.constructor = Float32BufferAttribute;\n\n\n\tfunction Float64BufferAttribute( array, itemSize, normalized ) {\n\n\t\tBufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );\n\n\t}\n\n\tFloat64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tFloat64BufferAttribute.prototype.constructor = Float64BufferAttribute;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction DirectGeometry() {\n\n\t\tthis.vertices = [];\n\t\tthis.normals = [];\n\t\tthis.colors = [];\n\t\tthis.uvs = [];\n\t\tthis.uvs2 = [];\n\n\t\tthis.groups = [];\n\n\t\tthis.morphTargets = {};\n\n\t\tthis.skinWeights = [];\n\t\tthis.skinIndices = [];\n\n\t\t// this.lineDistances = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\t// update flags\n\n\t\tthis.verticesNeedUpdate = false;\n\t\tthis.normalsNeedUpdate = false;\n\t\tthis.colorsNeedUpdate = false;\n\t\tthis.uvsNeedUpdate = false;\n\t\tthis.groupsNeedUpdate = false;\n\n\t}\n\n\tObject.assign( DirectGeometry.prototype, {\n\n\t\tcomputeGroups: function ( geometry ) {\n\n\t\t\tvar group;\n\t\t\tvar groups = [];\n\t\t\tvar materialIndex = undefined;\n\n\t\t\tvar faces = geometry.faces;\n\n\t\t\tfor ( var i = 0; i < faces.length; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\t// materials\n\n\t\t\t\tif ( face.materialIndex !== materialIndex ) {\n\n\t\t\t\t\tmaterialIndex = face.materialIndex;\n\n\t\t\t\t\tif ( group !== undefined ) {\n\n\t\t\t\t\t\tgroup.count = ( i * 3 ) - group.start;\n\t\t\t\t\t\tgroups.push( group );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tgroup = {\n\t\t\t\t\t\tstart: i * 3,\n\t\t\t\t\t\tmaterialIndex: materialIndex\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( group !== undefined ) {\n\n\t\t\t\tgroup.count = ( i * 3 ) - group.start;\n\t\t\t\tgroups.push( group );\n\n\t\t\t}\n\n\t\t\tthis.groups = groups;\n\n\t\t},\n\n\t\tfromGeometry: function ( geometry ) {\n\n\t\t\tvar faces = geometry.faces;\n\t\t\tvar vertices = geometry.vertices;\n\t\t\tvar faceVertexUvs = geometry.faceVertexUvs;\n\n\t\t\tvar hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;\n\t\t\tvar hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;\n\n\t\t\t// morphs\n\n\t\t\tvar morphTargets = geometry.morphTargets;\n\t\t\tvar morphTargetsLength = morphTargets.length;\n\n\t\t\tvar morphTargetsPosition;\n\n\t\t\tif ( morphTargetsLength > 0 ) {\n\n\t\t\t\tmorphTargetsPosition = [];\n\n\t\t\t\tfor ( var i = 0; i < morphTargetsLength; i ++ ) {\n\n\t\t\t\t\tmorphTargetsPosition[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.position = morphTargetsPosition;\n\n\t\t\t}\n\n\t\t\tvar morphNormals = geometry.morphNormals;\n\t\t\tvar morphNormalsLength = morphNormals.length;\n\n\t\t\tvar morphTargetsNormal;\n\n\t\t\tif ( morphNormalsLength > 0 ) {\n\n\t\t\t\tmorphTargetsNormal = [];\n\n\t\t\t\tfor ( var i = 0; i < morphNormalsLength; i ++ ) {\n\n\t\t\t\t\tmorphTargetsNormal[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.normal = morphTargetsNormal;\n\n\t\t\t}\n\n\t\t\t// skins\n\n\t\t\tvar skinIndices = geometry.skinIndices;\n\t\t\tvar skinWeights = geometry.skinWeights;\n\n\t\t\tvar hasSkinIndices = skinIndices.length === vertices.length;\n\t\t\tvar hasSkinWeights = skinWeights.length === vertices.length;\n\n\t\t\t//\n\n\t\t\tif ( vertices.length > 0 && faces.length === 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.DirectGeometry: Faceless geometries are not supported.' );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < faces.length; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tthis.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tthis.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar normal = face.normal;\n\n\t\t\t\t\tthis.normals.push( normal, normal, normal );\n\n\t\t\t\t}\n\n\t\t\t\tvar vertexColors = face.vertexColors;\n\n\t\t\t\tif ( vertexColors.length === 3 ) {\n\n\t\t\t\t\tthis.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar color = face.color;\n\n\t\t\t\t\tthis.colors.push( color, color, color );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexUv === true ) {\n\n\t\t\t\t\tvar vertexUvs = faceVertexUvs[ 0 ][ i ];\n\n\t\t\t\t\tif ( vertexUvs !== undefined ) {\n\n\t\t\t\t\t\tthis.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );\n\n\t\t\t\t\t\tthis.uvs.push( new Vector2(), new Vector2(), new Vector2() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexUv2 === true ) {\n\n\t\t\t\t\tvar vertexUvs = faceVertexUvs[ 1 ][ i ];\n\n\t\t\t\t\tif ( vertexUvs !== undefined ) {\n\n\t\t\t\t\t\tthis.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );\n\n\t\t\t\t\t\tthis.uvs2.push( new Vector2(), new Vector2(), new Vector2() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// morphs\n\n\t\t\t\tfor ( var j = 0; j < morphTargetsLength; j ++ ) {\n\n\t\t\t\t\tvar morphTarget = morphTargets[ j ].vertices;\n\n\t\t\t\t\tmorphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0; j < morphNormalsLength; j ++ ) {\n\n\t\t\t\t\tvar morphNormal = morphNormals[ j ].vertexNormals[ i ];\n\n\t\t\t\t\tmorphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );\n\n\t\t\t\t}\n\n\t\t\t\t// skins\n\n\t\t\t\tif ( hasSkinIndices ) {\n\n\t\t\t\t\tthis.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasSkinWeights ) {\n\n\t\t\t\t\tthis.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.computeGroups( geometry );\n\n\t\t\tthis.verticesNeedUpdate = geometry.verticesNeedUpdate;\n\t\t\tthis.normalsNeedUpdate = geometry.normalsNeedUpdate;\n\t\t\tthis.colorsNeedUpdate = geometry.colorsNeedUpdate;\n\t\t\tthis.uvsNeedUpdate = geometry.uvsNeedUpdate;\n\t\t\tthis.groupsNeedUpdate = geometry.groupsNeedUpdate;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction arrayMax( array ) {\n\n\t\tif ( array.length === 0 ) return - Infinity;\n\n\t\tvar max = array[ 0 ];\n\n\t\tfor ( var i = 1, l = array.length; i < l; ++ i ) {\n\n\t\t\tif ( array[ i ] > max ) max = array[ i ];\n\n\t\t}\n\n\t\treturn max;\n\n\t}\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id\n\n\tfunction BufferGeometry() {\n\n\t\tObject.defineProperty( this, 'id', { value: bufferGeometryId += 2 } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'BufferGeometry';\n\n\t\tthis.index = null;\n\t\tthis.attributes = {};\n\n\t\tthis.morphAttributes = {};\n\n\t\tthis.groups = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\tthis.drawRange = { start: 0, count: Infinity };\n\n\t\tthis.userData = {};\n\n\t}\n\n\tBufferGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: BufferGeometry,\n\n\t\tisBufferGeometry: true,\n\n\t\tgetIndex: function () {\n\n\t\t\treturn this.index;\n\n\t\t},\n\n\t\tsetIndex: function ( index ) {\n\n\t\t\tif ( Array.isArray( index ) ) {\n\n\t\t\t\tthis.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );\n\n\t\t\t} else {\n\n\t\t\t\tthis.index = index;\n\n\t\t\t}\n\n\t\t},\n\n\t\taddAttribute: function ( name, attribute ) {\n\n\t\t\tif ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );\n\n\t\t\t\treturn this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );\n\n\t\t\t}\n\n\t\t\tif ( name === 'index' ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );\n\t\t\t\tthis.setIndex( attribute );\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tthis.attributes[ name ] = attribute;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetAttribute: function ( name ) {\n\n\t\t\treturn this.attributes[ name ];\n\n\t\t},\n\n\t\tremoveAttribute: function ( name ) {\n\n\t\t\tdelete this.attributes[ name ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddGroup: function ( start, count, materialIndex ) {\n\n\t\t\tthis.groups.push( {\n\n\t\t\t\tstart: start,\n\t\t\t\tcount: count,\n\t\t\t\tmaterialIndex: materialIndex !== undefined ? materialIndex : 0\n\n\t\t\t} );\n\n\t\t},\n\n\t\tclearGroups: function () {\n\n\t\t\tthis.groups = [];\n\n\t\t},\n\n\t\tsetDrawRange: function ( start, count ) {\n\n\t\t\tthis.drawRange.start = start;\n\t\t\tthis.drawRange.count = count;\n\n\t\t},\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tvar position = this.attributes.position;\n\n\t\t\tif ( position !== undefined ) {\n\n\t\t\t\tmatrix.applyToBufferAttribute( position );\n\t\t\t\tposition.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tvar normal = this.attributes.normal;\n\n\t\t\tif ( normal !== undefined ) {\n\n\t\t\t\tvar normalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\t\tnormalMatrix.applyToBufferAttribute( normal );\n\t\t\t\tnormal.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tif ( this.boundingBox !== null ) {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tif ( this.boundingSphere !== null ) {\n\n\t\t\t\tthis.computeBoundingSphere();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateX: function () {\n\n\t\t\t// rotate geometry around world x-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\tm1.makeRotationX( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\t// rotate geometry around world y-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\tm1.makeRotationY( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\t// rotate geometry around world z-axis\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\tm1.makeRotationZ( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function () {\n\n\t\t\t// translate geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function translate( x, y, z ) {\n\n\t\t\t\tm1.makeTranslation( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tscale: function () {\n\n\t\t\t// scale geometry\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function scale( x, y, z ) {\n\n\t\t\t\tm1.makeScale( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar obj = new Object3D();\n\n\t\t\treturn function lookAt( vector ) {\n\n\t\t\t\tobj.lookAt( vector );\n\n\t\t\t\tobj.updateMatrix();\n\n\t\t\t\tthis.applyMatrix( obj.matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcenter: function () {\n\n\t\t\tvar offset = new Vector3();\n\n\t\t\treturn function center() {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t\tthis.boundingBox.getCenter( offset ).negate();\n\n\t\t\t\tthis.translate( offset.x, offset.y, offset.z );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromObject: function ( object ) {\n\n\t\t\t// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( object.isPoints || object.isLine ) {\n\n\t\t\t\tvar positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );\n\t\t\t\tvar colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );\n\n\t\t\t\tthis.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );\n\t\t\t\tthis.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );\n\n\t\t\t\tif ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {\n\n\t\t\t\t\tvar lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );\n\n\t\t\t\t\tthis.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t\t}\n\n\t\t\t} else if ( object.isMesh ) {\n\n\t\t\t\tif ( geometry && geometry.isGeometry ) {\n\n\t\t\t\t\tthis.fromGeometry( geometry );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tvar position = [];\n\n\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tvar point = points[ i ];\n\t\t\t\tposition.push( point.x, point.y, point.z || 0 );\n\n\t\t\t}\n\n\t\t\tthis.addAttribute( 'position', new Float32BufferAttribute( position, 3 ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateFromObject: function ( object ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( object.isMesh ) {\n\n\t\t\t\tvar direct = geometry.__directGeometry;\n\n\t\t\t\tif ( geometry.elementsNeedUpdate === true ) {\n\n\t\t\t\t\tdirect = undefined;\n\t\t\t\t\tgeometry.elementsNeedUpdate = false;\n\n\t\t\t\t}\n\n\t\t\t\tif ( direct === undefined ) {\n\n\t\t\t\t\treturn this.fromGeometry( geometry );\n\n\t\t\t\t}\n\n\t\t\t\tdirect.verticesNeedUpdate = geometry.verticesNeedUpdate;\n\t\t\t\tdirect.normalsNeedUpdate = geometry.normalsNeedUpdate;\n\t\t\t\tdirect.colorsNeedUpdate = geometry.colorsNeedUpdate;\n\t\t\t\tdirect.uvsNeedUpdate = geometry.uvsNeedUpdate;\n\t\t\t\tdirect.groupsNeedUpdate = geometry.groupsNeedUpdate;\n\n\t\t\t\tgeometry.verticesNeedUpdate = false;\n\t\t\t\tgeometry.normalsNeedUpdate = false;\n\t\t\t\tgeometry.colorsNeedUpdate = false;\n\t\t\t\tgeometry.uvsNeedUpdate = false;\n\t\t\t\tgeometry.groupsNeedUpdate = false;\n\n\t\t\t\tgeometry = direct;\n\n\t\t\t}\n\n\t\t\tvar attribute;\n\n\t\t\tif ( geometry.verticesNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.position;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector3sArray( geometry.vertices );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.verticesNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.normalsNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.normal;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector3sArray( geometry.normals );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.normalsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.colorsNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.color;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyColorsArray( geometry.colors );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.colorsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvsNeedUpdate ) {\n\n\t\t\t\tattribute = this.attributes.uv;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector2sArray( geometry.uvs );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.uvsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.lineDistancesNeedUpdate ) {\n\n\t\t\t\tattribute = this.attributes.lineDistance;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyArray( geometry.lineDistances );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.lineDistancesNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.groupsNeedUpdate ) {\n\n\t\t\t\tgeometry.computeGroups( object.geometry );\n\t\t\t\tthis.groups = geometry.groups;\n\n\t\t\t\tgeometry.groupsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tfromGeometry: function ( geometry ) {\n\n\t\t\tgeometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );\n\n\t\t\treturn this.fromDirectGeometry( geometry.__directGeometry );\n\n\t\t},\n\n\t\tfromDirectGeometry: function ( geometry ) {\n\n\t\t\tvar positions = new Float32Array( geometry.vertices.length * 3 );\n\t\t\tthis.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );\n\n\t\t\tif ( geometry.normals.length > 0 ) {\n\n\t\t\t\tvar normals = new Float32Array( geometry.normals.length * 3 );\n\t\t\t\tthis.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.colors.length > 0 ) {\n\n\t\t\t\tvar colors = new Float32Array( geometry.colors.length * 3 );\n\t\t\t\tthis.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvs.length > 0 ) {\n\n\t\t\t\tvar uvs = new Float32Array( geometry.uvs.length * 2 );\n\t\t\t\tthis.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvs2.length > 0 ) {\n\n\t\t\t\tvar uvs2 = new Float32Array( geometry.uvs2.length * 2 );\n\t\t\t\tthis.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );\n\n\t\t\t}\n\n\t\t\t// groups\n\n\t\t\tthis.groups = geometry.groups;\n\n\t\t\t// morphs\n\n\t\t\tfor ( var name in geometry.morphTargets ) {\n\n\t\t\t\tvar array = [];\n\t\t\t\tvar morphTargets = geometry.morphTargets[ name ];\n\n\t\t\t\tfor ( var i = 0, l = morphTargets.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar morphTarget = morphTargets[ i ];\n\n\t\t\t\t\tvar attribute = new Float32BufferAttribute( morphTarget.length * 3, 3 );\n\n\t\t\t\t\tarray.push( attribute.copyVector3sArray( morphTarget ) );\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphAttributes[ name ] = array;\n\n\t\t\t}\n\n\t\t\t// skinning\n\n\t\t\tif ( geometry.skinIndices.length > 0 ) {\n\n\t\t\t\tvar skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );\n\t\t\t\tthis.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.skinWeights.length > 0 ) {\n\n\t\t\t\tvar skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );\n\t\t\t\tthis.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcomputeBoundingBox: function () {\n\n\t\t\tif ( this.boundingBox === null ) {\n\n\t\t\t\tthis.boundingBox = new Box3();\n\n\t\t\t}\n\n\t\t\tvar position = this.attributes.position;\n\n\t\t\tif ( position !== undefined ) {\n\n\t\t\t\tthis.boundingBox.setFromBufferAttribute( position );\n\n\t\t\t} else {\n\n\t\t\t\tthis.boundingBox.makeEmpty();\n\n\t\t\t}\n\n\t\t\tif ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The \"position\" attribute is likely to have NaN values.', this );\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeBoundingSphere: function () {\n\n\t\t\tvar box = new Box3();\n\t\t\tvar vector = new Vector3();\n\n\t\t\treturn function computeBoundingSphere() {\n\n\t\t\t\tif ( this.boundingSphere === null ) {\n\n\t\t\t\t\tthis.boundingSphere = new Sphere();\n\n\t\t\t\t}\n\n\t\t\t\tvar position = this.attributes.position;\n\n\t\t\t\tif ( position ) {\n\n\t\t\t\t\tvar center = this.boundingSphere.center;\n\n\t\t\t\t\tbox.setFromBufferAttribute( position );\n\t\t\t\t\tbox.getCenter( center );\n\n\t\t\t\t\t// hoping to find a boundingSphere with a radius smaller than the\n\t\t\t\t\t// boundingSphere of the boundingBox: sqrt(3) smaller in the best case\n\n\t\t\t\t\tvar maxRadiusSq = 0;\n\n\t\t\t\t\tfor ( var i = 0, il = position.count; i < il; i ++ ) {\n\n\t\t\t\t\t\tvector.x = position.getX( i );\n\t\t\t\t\t\tvector.y = position.getY( i );\n\t\t\t\t\t\tvector.z = position.getZ( i );\n\t\t\t\t\t\tmaxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.boundingSphere.radius = Math.sqrt( maxRadiusSq );\n\n\t\t\t\t\tif ( isNaN( this.boundingSphere.radius ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The \"position\" attribute is likely to have NaN values.', this );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcomputeFaceNormals: function () {\n\n\t\t\t// backwards compatibility\n\n\t\t},\n\n\t\tcomputeVertexNormals: function () {\n\n\t\t\tvar index = this.index;\n\t\t\tvar attributes = this.attributes;\n\t\t\tvar groups = this.groups;\n\n\t\t\tif ( attributes.position ) {\n\n\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\tif ( attributes.normal === undefined ) {\n\n\t\t\t\t\tthis.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// reset existing normals to zero\n\n\t\t\t\t\tvar array = attributes.normal.array;\n\n\t\t\t\t\tfor ( var i = 0, il = array.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tarray[ i ] = 0;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar normals = attributes.normal.array;\n\n\t\t\t\tvar vA, vB, vC;\n\t\t\t\tvar pA = new Vector3(), pB = new Vector3(), pC = new Vector3();\n\t\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\t\t// indexed elements\n\n\t\t\t\tif ( index ) {\n\n\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\tif ( groups.length === 0 ) {\n\n\t\t\t\t\t\tthis.addGroup( 0, indices.length );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( var j = 0, jl = groups.length; j < jl; ++ j ) {\n\n\t\t\t\t\t\tvar group = groups[ j ];\n\n\t\t\t\t\t\tvar start = group.start;\n\t\t\t\t\t\tvar count = group.count;\n\n\t\t\t\t\t\tfor ( var i = start, il = start + count; i < il; i += 3 ) {\n\n\t\t\t\t\t\t\tvA = indices[ i + 0 ] * 3;\n\t\t\t\t\t\t\tvB = indices[ i + 1 ] * 3;\n\t\t\t\t\t\t\tvC = indices[ i + 2 ] * 3;\n\n\t\t\t\t\t\t\tpA.fromArray( positions, vA );\n\t\t\t\t\t\t\tpB.fromArray( positions, vB );\n\t\t\t\t\t\t\tpC.fromArray( positions, vC );\n\n\t\t\t\t\t\t\tcb.subVectors( pC, pB );\n\t\t\t\t\t\t\tab.subVectors( pA, pB );\n\t\t\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\t\t\tnormals[ vA ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vA + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vA + 2 ] += cb.z;\n\n\t\t\t\t\t\t\tnormals[ vB ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vB + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vB + 2 ] += cb.z;\n\n\t\t\t\t\t\t\tnormals[ vC ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vC + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vC + 2 ] += cb.z;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// non-indexed elements (unconnected triangle soup)\n\n\t\t\t\t\tfor ( var i = 0, il = positions.length; i < il; i += 9 ) {\n\n\t\t\t\t\t\tpA.fromArray( positions, i );\n\t\t\t\t\t\tpB.fromArray( positions, i + 3 );\n\t\t\t\t\t\tpC.fromArray( positions, i + 6 );\n\n\t\t\t\t\t\tcb.subVectors( pC, pB );\n\t\t\t\t\t\tab.subVectors( pA, pB );\n\t\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\t\tnormals[ i ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 1 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 2 ] = cb.z;\n\n\t\t\t\t\t\tnormals[ i + 3 ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 4 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 5 ] = cb.z;\n\n\t\t\t\t\t\tnormals[ i + 6 ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 7 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 8 ] = cb.z;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.normalizeNormals();\n\n\t\t\t\tattributes.normal.needsUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tmerge: function ( geometry, offset ) {\n\n\t\t\tif ( ! ( geometry && geometry.isBufferGeometry ) ) {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( offset === undefined ) {\n\n\t\t\t\toffset = 0;\n\n\t\t\t\tconsole.warn(\n\t\t\t\t\t'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. '\n\t\t\t\t\t+ 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.'\n\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tif ( geometry.attributes[ key ] === undefined ) continue;\n\n\t\t\t\tvar attribute1 = attributes[ key ];\n\t\t\t\tvar attributeArray1 = attribute1.array;\n\n\t\t\t\tvar attribute2 = geometry.attributes[ key ];\n\t\t\t\tvar attributeArray2 = attribute2.array;\n\n\t\t\t\tvar attributeSize = attribute2.itemSize;\n\n\t\t\t\tfor ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {\n\n\t\t\t\t\tattributeArray1[ j ] = attributeArray2[ i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnormalizeNormals: function () {\n\n\t\t\tvar vector = new Vector3();\n\n\t\t\treturn function normalizeNormals() {\n\n\t\t\t\tvar normals = this.attributes.normal;\n\n\t\t\t\tfor ( var i = 0, il = normals.count; i < il; i ++ ) {\n\n\t\t\t\t\tvector.x = normals.getX( i );\n\t\t\t\t\tvector.y = normals.getY( i );\n\t\t\t\t\tvector.z = normals.getZ( i );\n\n\t\t\t\t\tvector.normalize();\n\n\t\t\t\t\tnormals.setXYZ( i, vector.x, vector.y, vector.z );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttoNonIndexed: function () {\n\n\t\t\tif ( this.index === null ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar geometry2 = new BufferGeometry();\n\n\t\t\tvar indices = this.index.array;\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var name in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ name ];\n\n\t\t\t\tvar array = attribute.array;\n\t\t\t\tvar itemSize = attribute.itemSize;\n\n\t\t\t\tvar array2 = new array.constructor( indices.length * itemSize );\n\n\t\t\t\tvar index = 0, index2 = 0;\n\n\t\t\t\tfor ( var i = 0, l = indices.length; i < l; i ++ ) {\n\n\t\t\t\t\tindex = indices[ i ] * itemSize;\n\n\t\t\t\t\tfor ( var j = 0; j < itemSize; j ++ ) {\n\n\t\t\t\t\t\tarray2[ index2 ++ ] = array[ index ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tgeometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) );\n\n\t\t\t}\n\n\t\t\tvar groups = this.groups;\n\n\t\t\tfor ( var i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\tvar group = groups[ i ];\n\t\t\t\tgeometry2.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t}\n\n\t\t\treturn geometry2;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'BufferGeometry',\n\t\t\t\t\tgenerator: 'BufferGeometry.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard BufferGeometry serialization\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\t\t\tif ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData;\n\n\t\t\tif ( this.parameters !== undefined ) {\n\n\t\t\t\tvar parameters = this.parameters;\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tif ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];\n\n\t\t\t\t}\n\n\t\t\t\treturn data;\n\n\t\t\t}\n\n\t\t\tdata.data = { attributes: {} };\n\n\t\t\tvar index = this.index;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tvar array = Array.prototype.slice.call( index.array );\n\n\t\t\t\tdata.data.index = {\n\t\t\t\t\ttype: index.array.constructor.name,\n\t\t\t\t\tarray: array\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ key ];\n\n\t\t\t\tvar array = Array.prototype.slice.call( attribute.array );\n\n\t\t\t\tdata.data.attributes[ key ] = {\n\t\t\t\t\titemSize: attribute.itemSize,\n\t\t\t\t\ttype: attribute.array.constructor.name,\n\t\t\t\t\tarray: array,\n\t\t\t\t\tnormalized: attribute.normalized\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar groups = this.groups;\n\n\t\t\tif ( groups.length > 0 ) {\n\n\t\t\t\tdata.data.groups = JSON.parse( JSON.stringify( groups ) );\n\n\t\t\t}\n\n\t\t\tvar boundingSphere = this.boundingSphere;\n\n\t\t\tif ( boundingSphere !== null ) {\n\n\t\t\t\tdata.data.boundingSphere = {\n\t\t\t\t\tcenter: boundingSphere.center.toArray(),\n\t\t\t\t\tradius: boundingSphere.radius\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\t/*\n\t\t\t // Handle primitives\n\n\t\t\t var parameters = this.parameters;\n\n\t\t\t if ( parameters !== undefined ) {\n\n\t\t\t var values = [];\n\n\t\t\t for ( var key in parameters ) {\n\n\t\t\t values.push( parameters[ key ] );\n\n\t\t\t }\n\n\t\t\t var geometry = Object.create( this.constructor.prototype );\n\t\t\t this.constructor.apply( geometry, values );\n\t\t\t return geometry;\n\n\t\t\t }\n\n\t\t\t return new this.constructor().copy( this );\n\t\t\t */\n\n\t\t\treturn new BufferGeometry().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tvar name, i, l;\n\n\t\t\t// reset\n\n\t\t\tthis.index = null;\n\t\t\tthis.attributes = {};\n\t\t\tthis.morphAttributes = {};\n\t\t\tthis.groups = [];\n\t\t\tthis.boundingBox = null;\n\t\t\tthis.boundingSphere = null;\n\n\t\t\t// name\n\n\t\t\tthis.name = source.name;\n\n\t\t\t// index\n\n\t\t\tvar index = source.index;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tthis.setIndex( index.clone() );\n\n\t\t\t}\n\n\t\t\t// attributes\n\n\t\t\tvar attributes = source.attributes;\n\n\t\t\tfor ( name in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ name ];\n\t\t\t\tthis.addAttribute( name, attribute.clone() );\n\n\t\t\t}\n\n\t\t\t// morph attributes\n\n\t\t\tvar morphAttributes = source.morphAttributes;\n\n\t\t\tfor ( name in morphAttributes ) {\n\n\t\t\t\tvar array = [];\n\t\t\t\tvar morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes\n\n\t\t\t\tfor ( i = 0, l = morphAttribute.length; i < l; i ++ ) {\n\n\t\t\t\t\tarray.push( morphAttribute[ i ].clone() );\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphAttributes[ name ] = array;\n\n\t\t\t}\n\n\t\t\t// groups\n\n\t\t\tvar groups = source.groups;\n\n\t\t\tfor ( i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\tvar group = groups[ i ];\n\t\t\t\tthis.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t}\n\n\t\t\t// bounding box\n\n\t\t\tvar boundingBox = source.boundingBox;\n\n\t\t\tif ( boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = boundingBox.clone();\n\n\t\t\t}\n\n\t\t\t// bounding sphere\n\n\t\t\tvar boundingSphere = source.boundingSphere;\n\n\t\t\tif ( boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\t// draw range\n\n\t\t\tthis.drawRange.start = source.drawRange.start;\n\t\t\tthis.drawRange.count = source.drawRange.count;\n\n\t\t\t// user data\n\n\t\t\tthis.userData = source.userData;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// BoxGeometry\n\n\tfunction BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'BoxGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\tdepth: depth,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tdepthSegments: depthSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tBoxGeometry.prototype = Object.create( Geometry.prototype );\n\tBoxGeometry.prototype.constructor = BoxGeometry;\n\n\t// BoxBufferGeometry\n\n\tfunction BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'BoxBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\tdepth: depth,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tdepthSegments: depthSegments\n\t\t};\n\n\t\tvar scope = this;\n\n\t\twidth = width || 1;\n\t\theight = height || 1;\n\t\tdepth = depth || 1;\n\n\t\t// segments\n\n\t\twidthSegments = Math.floor( widthSegments ) || 1;\n\t\theightSegments = Math.floor( heightSegments ) || 1;\n\t\tdepthSegments = Math.floor( depthSegments ) || 1;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar numberOfVertices = 0;\n\t\tvar groupStart = 0;\n\n\t\t// build each side of the box geometry\n\n\t\tbuildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px\n\t\tbuildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx\n\t\tbuildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py\n\t\tbuildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny\n\t\tbuildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz\n\t\tbuildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\tfunction buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {\n\n\t\t\tvar segmentWidth = width / gridX;\n\t\t\tvar segmentHeight = height / gridY;\n\n\t\t\tvar widthHalf = width / 2;\n\t\t\tvar heightHalf = height / 2;\n\t\t\tvar depthHalf = depth / 2;\n\n\t\t\tvar gridX1 = gridX + 1;\n\t\t\tvar gridY1 = gridY + 1;\n\n\t\t\tvar vertexCounter = 0;\n\t\t\tvar groupCount = 0;\n\n\t\t\tvar ix, iy;\n\n\t\t\tvar vector = new Vector3();\n\n\t\t\t// generate vertices, normals and uvs\n\n\t\t\tfor ( iy = 0; iy < gridY1; iy ++ ) {\n\n\t\t\t\tvar y = iy * segmentHeight - heightHalf;\n\n\t\t\t\tfor ( ix = 0; ix < gridX1; ix ++ ) {\n\n\t\t\t\t\tvar x = ix * segmentWidth - widthHalf;\n\n\t\t\t\t\t// set values to correct vector component\n\n\t\t\t\t\tvector[ u ] = x * udir;\n\t\t\t\t\tvector[ v ] = y * vdir;\n\t\t\t\t\tvector[ w ] = depthHalf;\n\n\t\t\t\t\t// now apply vector to vertex buffer\n\n\t\t\t\t\tvertices.push( vector.x, vector.y, vector.z );\n\n\t\t\t\t\t// set values to correct vector component\n\n\t\t\t\t\tvector[ u ] = 0;\n\t\t\t\t\tvector[ v ] = 0;\n\t\t\t\t\tvector[ w ] = depth > 0 ? 1 : - 1;\n\n\t\t\t\t\t// now apply vector to normal buffer\n\n\t\t\t\t\tnormals.push( vector.x, vector.y, vector.z );\n\n\t\t\t\t\t// uvs\n\n\t\t\t\t\tuvs.push( ix / gridX );\n\t\t\t\t\tuvs.push( 1 - ( iy / gridY ) );\n\n\t\t\t\t\t// counters\n\n\t\t\t\t\tvertexCounter += 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// indices\n\n\t\t\t// 1. you need three indices to draw a single face\n\t\t\t// 2. a single segment consists of two faces\n\t\t\t// 3. so we need to generate six (2*3) indices per segment\n\n\t\t\tfor ( iy = 0; iy < gridY; iy ++ ) {\n\n\t\t\t\tfor ( ix = 0; ix < gridX; ix ++ ) {\n\n\t\t\t\t\tvar a = numberOfVertices + ix + gridX1 * iy;\n\t\t\t\t\tvar b = numberOfVertices + ix + gridX1 * ( iy + 1 );\n\t\t\t\t\tvar c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );\n\t\t\t\t\tvar d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;\n\n\t\t\t\t\t// faces\n\n\t\t\t\t\tindices.push( a, b, d );\n\t\t\t\t\tindices.push( b, c, d );\n\n\t\t\t\t\t// increase counter\n\n\t\t\t\t\tgroupCount += 6;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\n\t\t\tscope.addGroup( groupStart, groupCount, materialIndex );\n\n\t\t\t// calculate new start value for groups\n\n\t\t\tgroupStart += groupCount;\n\n\t\t\t// update total number of vertices\n\n\t\t\tnumberOfVertices += vertexCounter;\n\n\t\t}\n\n\t}\n\n\tBoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tBoxBufferGeometry.prototype.constructor = BoxBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// PlaneGeometry\n\n\tfunction PlaneGeometry( width, height, widthSegments, heightSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'PlaneGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tPlaneGeometry.prototype = Object.create( Geometry.prototype );\n\tPlaneGeometry.prototype.constructor = PlaneGeometry;\n\n\t// PlaneBufferGeometry\n\n\tfunction PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'PlaneBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments\n\t\t};\n\n\t\twidth = width || 1;\n\t\theight = height || 1;\n\n\t\tvar width_half = width / 2;\n\t\tvar height_half = height / 2;\n\n\t\tvar gridX = Math.floor( widthSegments ) || 1;\n\t\tvar gridY = Math.floor( heightSegments ) || 1;\n\n\t\tvar gridX1 = gridX + 1;\n\t\tvar gridY1 = gridY + 1;\n\n\t\tvar segment_width = width / gridX;\n\t\tvar segment_height = height / gridY;\n\n\t\tvar ix, iy;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( iy = 0; iy < gridY1; iy ++ ) {\n\n\t\t\tvar y = iy * segment_height - height_half;\n\n\t\t\tfor ( ix = 0; ix < gridX1; ix ++ ) {\n\n\t\t\t\tvar x = ix * segment_width - width_half;\n\n\t\t\t\tvertices.push( x, - y, 0 );\n\n\t\t\t\tnormals.push( 0, 0, 1 );\n\n\t\t\t\tuvs.push( ix / gridX );\n\t\t\t\tuvs.push( 1 - ( iy / gridY ) );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( iy = 0; iy < gridY; iy ++ ) {\n\n\t\t\tfor ( ix = 0; ix < gridX; ix ++ ) {\n\n\t\t\t\tvar a = ix + gridX1 * iy;\n\t\t\t\tvar b = ix + gridX1 * ( iy + 1 );\n\t\t\t\tvar c = ( ix + 1 ) + gridX1 * ( iy + 1 );\n\t\t\t\tvar d = ( ix + 1 ) + gridX1 * iy;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tPlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tPlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tvar materialId = 0;\n\n\tfunction Material() {\n\n\t\tObject.defineProperty( this, 'id', { value: materialId ++ } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Material';\n\n\t\tthis.fog = true;\n\t\tthis.lights = true;\n\n\t\tthis.blending = NormalBlending;\n\t\tthis.side = FrontSide;\n\t\tthis.flatShading = false;\n\t\tthis.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors\n\n\t\tthis.opacity = 1;\n\t\tthis.transparent = false;\n\n\t\tthis.blendSrc = SrcAlphaFactor;\n\t\tthis.blendDst = OneMinusSrcAlphaFactor;\n\t\tthis.blendEquation = AddEquation;\n\t\tthis.blendSrcAlpha = null;\n\t\tthis.blendDstAlpha = null;\n\t\tthis.blendEquationAlpha = null;\n\n\t\tthis.depthFunc = LessEqualDepth;\n\t\tthis.depthTest = true;\n\t\tthis.depthWrite = true;\n\n\t\tthis.clippingPlanes = null;\n\t\tthis.clipIntersection = false;\n\t\tthis.clipShadows = false;\n\n\t\tthis.shadowSide = null;\n\n\t\tthis.colorWrite = true;\n\n\t\tthis.precision = null; // override the renderer's default precision for this material\n\n\t\tthis.polygonOffset = false;\n\t\tthis.polygonOffsetFactor = 0;\n\t\tthis.polygonOffsetUnits = 0;\n\n\t\tthis.dithering = false;\n\n\t\tthis.alphaTest = 0;\n\t\tthis.premultipliedAlpha = false;\n\n\t\tthis.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer\n\n\t\tthis.visible = true;\n\n\t\tthis.userData = {};\n\n\t\tthis.needsUpdate = true;\n\n\t}\n\n\tMaterial.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: Material,\n\n\t\tisMaterial: true,\n\n\t\tonBeforeCompile: function () {},\n\n\t\tsetValues: function ( values ) {\n\n\t\t\tif ( values === undefined ) return;\n\n\t\t\tfor ( var key in values ) {\n\n\t\t\t\tvar newValue = values[ key ];\n\n\t\t\t\tif ( newValue === undefined ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.Material: '\" + key + \"' parameter is undefined.\" );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\t// for backward compatability if shading is set in the constructor\n\t\t\t\tif ( key === 'shading' ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );\n\t\t\t\t\tthis.flatShading = ( newValue === FlatShading ) ? true : false;\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tvar currentValue = this[ key ];\n\n\t\t\t\tif ( currentValue === undefined ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.\" + this.type + \": '\" + key + \"' is not a property of this material.\" );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tif ( currentValue && currentValue.isColor ) {\n\n\t\t\t\t\tcurrentValue.set( newValue );\n\n\t\t\t\t} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {\n\n\t\t\t\t\tcurrentValue.copy( newValue );\n\n\t\t\t\t} else if ( key === 'overdraw' ) {\n\n\t\t\t\t\t// ensure overdraw is backwards-compatible with legacy boolean type\n\t\t\t\t\tthis[ key ] = Number( newValue );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis[ key ] = newValue;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar isRoot = ( meta === undefined || typeof meta === 'string' );\n\n\t\t\tif ( isRoot ) {\n\n\t\t\t\tmeta = {\n\t\t\t\t\ttextures: {},\n\t\t\t\t\timages: {}\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Material',\n\t\t\t\t\tgenerator: 'Material.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard Material serialization\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\n\t\t\tif ( this.color && this.color.isColor ) data.color = this.color.getHex();\n\n\t\t\tif ( this.roughness !== undefined ) data.roughness = this.roughness;\n\t\t\tif ( this.metalness !== undefined ) data.metalness = this.metalness;\n\n\t\t\tif ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();\n\t\t\tif ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;\n\n\t\t\tif ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();\n\t\t\tif ( this.shininess !== undefined ) data.shininess = this.shininess;\n\t\t\tif ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;\n\t\t\tif ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;\n\n\t\t\tif ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;\n\t\t\tif ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;\n\t\t\tif ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;\n\n\t\t\tif ( this.aoMap && this.aoMap.isTexture ) {\n\n\t\t\t\tdata.aoMap = this.aoMap.toJSON( meta ).uuid;\n\t\t\t\tdata.aoMapIntensity = this.aoMapIntensity;\n\n\t\t\t}\n\n\t\t\tif ( this.bumpMap && this.bumpMap.isTexture ) {\n\n\t\t\t\tdata.bumpMap = this.bumpMap.toJSON( meta ).uuid;\n\t\t\t\tdata.bumpScale = this.bumpScale;\n\n\t\t\t}\n\n\t\t\tif ( this.normalMap && this.normalMap.isTexture ) {\n\n\t\t\t\tdata.normalMap = this.normalMap.toJSON( meta ).uuid;\n\t\t\t\tdata.normalMapType = this.normalMapType;\n\t\t\t\tdata.normalScale = this.normalScale.toArray();\n\n\t\t\t}\n\n\t\t\tif ( this.displacementMap && this.displacementMap.isTexture ) {\n\n\t\t\t\tdata.displacementMap = this.displacementMap.toJSON( meta ).uuid;\n\t\t\t\tdata.displacementScale = this.displacementScale;\n\t\t\t\tdata.displacementBias = this.displacementBias;\n\n\t\t\t}\n\n\t\t\tif ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;\n\t\t\tif ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;\n\n\t\t\tif ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;\n\t\t\tif ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;\n\n\t\t\tif ( this.envMap && this.envMap.isTexture ) {\n\n\t\t\t\tdata.envMap = this.envMap.toJSON( meta ).uuid;\n\t\t\t\tdata.reflectivity = this.reflectivity; // Scale behind envMap\n\n\t\t\t}\n\n\t\t\tif ( this.gradientMap && this.gradientMap.isTexture ) {\n\n\t\t\t\tdata.gradientMap = this.gradientMap.toJSON( meta ).uuid;\n\n\t\t\t}\n\n\t\t\tif ( this.size !== undefined ) data.size = this.size;\n\t\t\tif ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;\n\n\t\t\tif ( this.blending !== NormalBlending ) data.blending = this.blending;\n\t\t\tif ( this.flatShading === true ) data.flatShading = this.flatShading;\n\t\t\tif ( this.side !== FrontSide ) data.side = this.side;\n\t\t\tif ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;\n\n\t\t\tif ( this.opacity < 1 ) data.opacity = this.opacity;\n\t\t\tif ( this.transparent === true ) data.transparent = this.transparent;\n\n\t\t\tdata.depthFunc = this.depthFunc;\n\t\t\tdata.depthTest = this.depthTest;\n\t\t\tdata.depthWrite = this.depthWrite;\n\n\t\t\t// rotation (SpriteMaterial)\n\t\t\tif ( this.rotation !== 0 ) data.rotation = this.rotation;\n\n\t\t\tif ( this.linewidth !== 1 ) data.linewidth = this.linewidth;\n\t\t\tif ( this.dashSize !== undefined ) data.dashSize = this.dashSize;\n\t\t\tif ( this.gapSize !== undefined ) data.gapSize = this.gapSize;\n\t\t\tif ( this.scale !== undefined ) data.scale = this.scale;\n\n\t\t\tif ( this.dithering === true ) data.dithering = true;\n\n\t\t\tif ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;\n\t\t\tif ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;\n\n\t\t\tif ( this.wireframe === true ) data.wireframe = this.wireframe;\n\t\t\tif ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;\n\t\t\tif ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;\n\t\t\tif ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;\n\n\t\t\tif ( this.morphTargets === true ) data.morphTargets = true;\n\t\t\tif ( this.skinning === true ) data.skinning = true;\n\n\t\t\tif ( this.visible === false ) data.visible = false;\n\t\t\tif ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;\n\n\t\t\t// TODO: Copied from Object3D.toJSON\n\n\t\t\tfunction extractFromCache( cache ) {\n\n\t\t\t\tvar values = [];\n\n\t\t\t\tfor ( var key in cache ) {\n\n\t\t\t\t\tvar data = cache[ key ];\n\t\t\t\t\tdelete data.metadata;\n\t\t\t\t\tvalues.push( data );\n\n\t\t\t\t}\n\n\t\t\t\treturn values;\n\n\t\t\t}\n\n\t\t\tif ( isRoot ) {\n\n\t\t\t\tvar textures = extractFromCache( meta.textures );\n\t\t\t\tvar images = extractFromCache( meta.images );\n\n\t\t\t\tif ( textures.length > 0 ) data.textures = textures;\n\t\t\t\tif ( images.length > 0 ) data.images = images;\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.fog = source.fog;\n\t\t\tthis.lights = source.lights;\n\n\t\t\tthis.blending = source.blending;\n\t\t\tthis.side = source.side;\n\t\t\tthis.flatShading = source.flatShading;\n\t\t\tthis.vertexColors = source.vertexColors;\n\n\t\t\tthis.opacity = source.opacity;\n\t\t\tthis.transparent = source.transparent;\n\n\t\t\tthis.blendSrc = source.blendSrc;\n\t\t\tthis.blendDst = source.blendDst;\n\t\t\tthis.blendEquation = source.blendEquation;\n\t\t\tthis.blendSrcAlpha = source.blendSrcAlpha;\n\t\t\tthis.blendDstAlpha = source.blendDstAlpha;\n\t\t\tthis.blendEquationAlpha = source.blendEquationAlpha;\n\n\t\t\tthis.depthFunc = source.depthFunc;\n\t\t\tthis.depthTest = source.depthTest;\n\t\t\tthis.depthWrite = source.depthWrite;\n\n\t\t\tthis.colorWrite = source.colorWrite;\n\n\t\t\tthis.precision = source.precision;\n\n\t\t\tthis.polygonOffset = source.polygonOffset;\n\t\t\tthis.polygonOffsetFactor = source.polygonOffsetFactor;\n\t\t\tthis.polygonOffsetUnits = source.polygonOffsetUnits;\n\n\t\t\tthis.dithering = source.dithering;\n\n\t\t\tthis.alphaTest = source.alphaTest;\n\t\t\tthis.premultipliedAlpha = source.premultipliedAlpha;\n\n\t\t\tthis.overdraw = source.overdraw;\n\n\t\t\tthis.visible = source.visible;\n\t\t\tthis.userData = JSON.parse( JSON.stringify( source.userData ) );\n\n\t\t\tthis.clipShadows = source.clipShadows;\n\t\t\tthis.clipIntersection = source.clipIntersection;\n\n\t\t\tvar srcPlanes = source.clippingPlanes,\n\t\t\t\tdstPlanes = null;\n\n\t\t\tif ( srcPlanes !== null ) {\n\n\t\t\t\tvar n = srcPlanes.length;\n\t\t\t\tdstPlanes = new Array( n );\n\n\t\t\t\tfor ( var i = 0; i !== n; ++ i )\n\t\t\t\t\tdstPlanes[ i ] = srcPlanes[ i ].clone();\n\n\t\t\t}\n\n\t\t\tthis.clippingPlanes = dstPlanes;\n\n\t\t\tthis.shadowSide = source.shadowSide;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * depthTest: ,\n\t * depthWrite: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: \n\t * }\n\t */\n\n\tfunction MeshBasicMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshBasicMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // emissive\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshBasicMaterial.prototype = Object.create( Material.prototype );\n\tMeshBasicMaterial.prototype.constructor = MeshBasicMaterial;\n\n\tMeshBasicMaterial.prototype.isMeshBasicMaterial = true;\n\n\tMeshBasicMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * defines: { \"label\" : \"value\" },\n\t * uniforms: { \"parameter1\": { value: 1.0 }, \"parameter2\": { value2: 2 } },\n\t *\n\t * fragmentShader: ,\n\t * vertexShader: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * lights: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction ShaderMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'ShaderMaterial';\n\n\t\tthis.defines = {};\n\t\tthis.uniforms = {};\n\n\t\tthis.vertexShader = 'void main() {\\n\\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\\n}';\n\t\tthis.fragmentShader = 'void main() {\\n\\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\\n}';\n\n\t\tthis.linewidth = 1;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false; // set to use scene fog\n\t\tthis.lights = false; // set to use scene lights\n\t\tthis.clipping = false; // set to use user-defined clipping planes\n\n\t\tthis.skinning = false; // set to use skinning attribute streams\n\t\tthis.morphTargets = false; // set to use morph targets\n\t\tthis.morphNormals = false; // set to use morph normals\n\n\t\tthis.extensions = {\n\t\t\tderivatives: false, // set to use derivatives\n\t\t\tfragDepth: false, // set to use fragment depth values\n\t\t\tdrawBuffers: false, // set to use draw buffers\n\t\t\tshaderTextureLOD: false // set to use shader texture LOD\n\t\t};\n\n\t\t// When rendered geometry doesn't include these attributes but the material does,\n\t\t// use these default values in WebGL. This avoids errors when buffer data is missing.\n\t\tthis.defaultAttributeValues = {\n\t\t\t'color': [ 1, 1, 1 ],\n\t\t\t'uv': [ 0, 0 ],\n\t\t\t'uv2': [ 0, 0 ]\n\t\t};\n\n\t\tthis.index0AttributeName = undefined;\n\t\tthis.uniformsNeedUpdate = false;\n\n\t\tif ( parameters !== undefined ) {\n\n\t\t\tif ( parameters.attributes !== undefined ) {\n\n\t\t\t\tconsole.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );\n\n\t\t\t}\n\n\t\t\tthis.setValues( parameters );\n\n\t\t}\n\n\t}\n\n\tShaderMaterial.prototype = Object.create( Material.prototype );\n\tShaderMaterial.prototype.constructor = ShaderMaterial;\n\n\tShaderMaterial.prototype.isShaderMaterial = true;\n\n\tShaderMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.fragmentShader = source.fragmentShader;\n\t\tthis.vertexShader = source.vertexShader;\n\n\t\tthis.uniforms = UniformsUtils.clone( source.uniforms );\n\n\t\tthis.defines = Object.assign( {}, source.defines );\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\tthis.lights = source.lights;\n\t\tthis.clipping = source.clipping;\n\n\t\tthis.skinning = source.skinning;\n\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\tthis.extensions = source.extensions;\n\n\t\treturn this;\n\n\t};\n\n\tShaderMaterial.prototype.toJSON = function ( meta ) {\n\n\t\tvar data = Material.prototype.toJSON.call( this, meta );\n\n\t\tdata.uniforms = this.uniforms;\n\t\tdata.vertexShader = this.vertexShader;\n\t\tdata.fragmentShader = this.fragmentShader;\n\n\t\treturn data;\n\n\t};\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Ray( origin, direction ) {\n\n\t\tthis.origin = ( origin !== undefined ) ? origin : new Vector3();\n\t\tthis.direction = ( direction !== undefined ) ? direction : new Vector3();\n\n\t}\n\n\tObject.assign( Ray.prototype, {\n\n\t\tset: function ( origin, direction ) {\n\n\t\t\tthis.origin.copy( origin );\n\t\t\tthis.direction.copy( direction );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( ray ) {\n\n\t\t\tthis.origin.copy( ray.origin );\n\t\t\tthis.direction.copy( ray.direction );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tat: function ( t, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Ray: .at() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.direction ).multiplyScalar( t ).add( this.origin );\n\n\t\t},\n\n\t\tlookAt: function ( v ) {\n\n\t\t\tthis.direction.copy( v ).sub( this.origin ).normalize();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trecast: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function recast( t ) {\n\n\t\t\t\tthis.origin.copy( this.at( t, v1 ) );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclosestPointToPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Ray: .closestPointToPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\ttarget.subVectors( point, this.origin );\n\n\t\t\tvar directionDistance = target.dot( this.direction );\n\n\t\t\tif ( directionDistance < 0 ) {\n\n\t\t\t\treturn target.copy( this.origin );\n\n\t\t\t}\n\n\t\t\treturn target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn Math.sqrt( this.distanceSqToPoint( point ) );\n\n\t\t},\n\n\t\tdistanceSqToPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function distanceSqToPoint( point ) {\n\n\t\t\t\tvar directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );\n\n\t\t\t\t// point behind the ray\n\n\t\t\t\tif ( directionDistance < 0 ) {\n\n\t\t\t\t\treturn this.origin.distanceToSquared( point );\n\n\t\t\t\t}\n\n\t\t\t\tv1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );\n\n\t\t\t\treturn v1.distanceToSquared( point );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tdistanceSqToSegment: function () {\n\n\t\t\tvar segCenter = new Vector3();\n\t\t\tvar segDir = new Vector3();\n\t\t\tvar diff = new Vector3();\n\n\t\t\treturn function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {\n\n\t\t\t\t// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h\n\t\t\t\t// It returns the min distance between the ray and the segment\n\t\t\t\t// defined by v0 and v1\n\t\t\t\t// It can also set two optional targets :\n\t\t\t\t// - The closest point on the ray\n\t\t\t\t// - The closest point on the segment\n\n\t\t\t\tsegCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );\n\t\t\t\tsegDir.copy( v1 ).sub( v0 ).normalize();\n\t\t\t\tdiff.copy( this.origin ).sub( segCenter );\n\n\t\t\t\tvar segExtent = v0.distanceTo( v1 ) * 0.5;\n\t\t\t\tvar a01 = - this.direction.dot( segDir );\n\t\t\t\tvar b0 = diff.dot( this.direction );\n\t\t\t\tvar b1 = - diff.dot( segDir );\n\t\t\t\tvar c = diff.lengthSq();\n\t\t\t\tvar det = Math.abs( 1 - a01 * a01 );\n\t\t\t\tvar s0, s1, sqrDist, extDet;\n\n\t\t\t\tif ( det > 0 ) {\n\n\t\t\t\t\t// The ray and segment are not parallel.\n\n\t\t\t\t\ts0 = a01 * b1 - b0;\n\t\t\t\t\ts1 = a01 * b0 - b1;\n\t\t\t\t\textDet = segExtent * det;\n\n\t\t\t\t\tif ( s0 >= 0 ) {\n\n\t\t\t\t\t\tif ( s1 >= - extDet ) {\n\n\t\t\t\t\t\t\tif ( s1 <= extDet ) {\n\n\t\t\t\t\t\t\t\t// region 0\n\t\t\t\t\t\t\t\t// Minimum at interior points of ray and segment.\n\n\t\t\t\t\t\t\t\tvar invDet = 1 / det;\n\t\t\t\t\t\t\t\ts0 *= invDet;\n\t\t\t\t\t\t\t\ts1 *= invDet;\n\t\t\t\t\t\t\t\tsqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t// region 1\n\n\t\t\t\t\t\t\t\ts1 = segExtent;\n\t\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// region 5\n\n\t\t\t\t\t\t\ts1 = - segExtent;\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( s1 <= - extDet ) {\n\n\t\t\t\t\t\t\t// region 4\n\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );\n\t\t\t\t\t\t\ts1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t} else if ( s1 <= extDet ) {\n\n\t\t\t\t\t\t\t// region 3\n\n\t\t\t\t\t\t\ts0 = 0;\n\t\t\t\t\t\t\ts1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// region 2\n\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * segExtent + b0 ) );\n\t\t\t\t\t\t\ts1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// Ray and segment are parallel.\n\n\t\t\t\t\ts1 = ( a01 > 0 ) ? - segExtent : segExtent;\n\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t}\n\n\t\t\t\tif ( optionalPointOnRay ) {\n\n\t\t\t\t\toptionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );\n\n\t\t\t\t}\n\n\t\t\t\tif ( optionalPointOnSegment ) {\n\n\t\t\t\t\toptionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );\n\n\t\t\t\t}\n\n\t\t\t\treturn sqrDist;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectSphere: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function intersectSphere( sphere, target ) {\n\n\t\t\t\tv1.subVectors( sphere.center, this.origin );\n\t\t\t\tvar tca = v1.dot( this.direction );\n\t\t\t\tvar d2 = v1.dot( v1 ) - tca * tca;\n\t\t\t\tvar radius2 = sphere.radius * sphere.radius;\n\n\t\t\t\tif ( d2 > radius2 ) return null;\n\n\t\t\t\tvar thc = Math.sqrt( radius2 - d2 );\n\n\t\t\t\t// t0 = first intersect point - entrance on front of sphere\n\t\t\t\tvar t0 = tca - thc;\n\n\t\t\t\t// t1 = second intersect point - exit point on back of sphere\n\t\t\t\tvar t1 = tca + thc;\n\n\t\t\t\t// test to see if both t0 and t1 are behind the ray - if so, return null\n\t\t\t\tif ( t0 < 0 && t1 < 0 ) return null;\n\n\t\t\t\t// test to see if t0 is behind the ray:\n\t\t\t\t// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,\n\t\t\t\t// in order to always return an intersect point that is in front of the ray.\n\t\t\t\tif ( t0 < 0 ) return this.at( t1, target );\n\n\t\t\t\t// else t0 is in front of the ray, so return the first collision point scaled by t0\n\t\t\t\treturn this.at( t0, target );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\treturn this.distanceToPoint( sphere.center ) <= sphere.radius;\n\n\t\t},\n\n\t\tdistanceToPlane: function ( plane ) {\n\n\t\t\tvar denominator = plane.normal.dot( this.direction );\n\n\t\t\tif ( denominator === 0 ) {\n\n\t\t\t\t// line is coplanar, return origin\n\t\t\t\tif ( plane.distanceToPoint( this.origin ) === 0 ) {\n\n\t\t\t\t\treturn 0;\n\n\t\t\t\t}\n\n\t\t\t\t// Null is preferable to undefined since undefined means.... it is undefined\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;\n\n\t\t\t// Return if the ray never intersects the plane\n\n\t\t\treturn t >= 0 ? t : null;\n\n\t\t},\n\n\t\tintersectPlane: function ( plane, target ) {\n\n\t\t\tvar t = this.distanceToPlane( plane );\n\n\t\t\tif ( t === null ) {\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\treturn this.at( t, target );\n\n\t\t},\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\t// check if the ray lies on the plane first\n\n\t\t\tvar distToPoint = plane.distanceToPoint( this.origin );\n\n\t\t\tif ( distToPoint === 0 ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\tvar denominator = plane.normal.dot( this.direction );\n\n\t\t\tif ( denominator * distToPoint < 0 ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\t// ray origin is behind the plane (and is pointing behind it)\n\n\t\t\treturn false;\n\n\t\t},\n\n\t\tintersectBox: function ( box, target ) {\n\n\t\t\tvar tmin, tmax, tymin, tymax, tzmin, tzmax;\n\n\t\t\tvar invdirx = 1 / this.direction.x,\n\t\t\t\tinvdiry = 1 / this.direction.y,\n\t\t\t\tinvdirz = 1 / this.direction.z;\n\n\t\t\tvar origin = this.origin;\n\n\t\t\tif ( invdirx >= 0 ) {\n\n\t\t\t\ttmin = ( box.min.x - origin.x ) * invdirx;\n\t\t\t\ttmax = ( box.max.x - origin.x ) * invdirx;\n\n\t\t\t} else {\n\n\t\t\t\ttmin = ( box.max.x - origin.x ) * invdirx;\n\t\t\t\ttmax = ( box.min.x - origin.x ) * invdirx;\n\n\t\t\t}\n\n\t\t\tif ( invdiry >= 0 ) {\n\n\t\t\t\ttymin = ( box.min.y - origin.y ) * invdiry;\n\t\t\t\ttymax = ( box.max.y - origin.y ) * invdiry;\n\n\t\t\t} else {\n\n\t\t\t\ttymin = ( box.max.y - origin.y ) * invdiry;\n\t\t\t\ttymax = ( box.min.y - origin.y ) * invdiry;\n\n\t\t\t}\n\n\t\t\tif ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;\n\n\t\t\t// These lines also handle the case where tmin or tmax is NaN\n\t\t\t// (result of 0 * Infinity). x !== x returns true if x is NaN\n\n\t\t\tif ( tymin > tmin || tmin !== tmin ) tmin = tymin;\n\n\t\t\tif ( tymax < tmax || tmax !== tmax ) tmax = tymax;\n\n\t\t\tif ( invdirz >= 0 ) {\n\n\t\t\t\ttzmin = ( box.min.z - origin.z ) * invdirz;\n\t\t\t\ttzmax = ( box.max.z - origin.z ) * invdirz;\n\n\t\t\t} else {\n\n\t\t\t\ttzmin = ( box.max.z - origin.z ) * invdirz;\n\t\t\t\ttzmax = ( box.min.z - origin.z ) * invdirz;\n\n\t\t\t}\n\n\t\t\tif ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;\n\n\t\t\tif ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;\n\n\t\t\tif ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;\n\n\t\t\t//return point closest to the ray (positive side)\n\n\t\t\tif ( tmax < 0 ) return null;\n\n\t\t\treturn this.at( tmin >= 0 ? tmin : tmax, target );\n\n\t\t},\n\n\t\tintersectsBox: ( function () {\n\n\t\t\tvar v = new Vector3();\n\n\t\t\treturn function intersectsBox( box ) {\n\n\t\t\t\treturn this.intersectBox( box, v ) !== null;\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tintersectTriangle: function () {\n\n\t\t\t// Compute the offset origin, edges, and normal.\n\t\t\tvar diff = new Vector3();\n\t\t\tvar edge1 = new Vector3();\n\t\t\tvar edge2 = new Vector3();\n\t\t\tvar normal = new Vector3();\n\n\t\t\treturn function intersectTriangle( a, b, c, backfaceCulling, target ) {\n\n\t\t\t\t// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h\n\n\t\t\t\tedge1.subVectors( b, a );\n\t\t\t\tedge2.subVectors( c, a );\n\t\t\t\tnormal.crossVectors( edge1, edge2 );\n\n\t\t\t\t// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,\n\t\t\t\t// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by\n\t\t\t\t// |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))\n\t\t\t\t// |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))\n\t\t\t\t// |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)\n\t\t\t\tvar DdN = this.direction.dot( normal );\n\t\t\t\tvar sign;\n\n\t\t\t\tif ( DdN > 0 ) {\n\n\t\t\t\t\tif ( backfaceCulling ) return null;\n\t\t\t\t\tsign = 1;\n\n\t\t\t\t} else if ( DdN < 0 ) {\n\n\t\t\t\t\tsign = - 1;\n\t\t\t\t\tDdN = - DdN;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\tdiff.subVectors( this.origin, a );\n\t\t\t\tvar DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );\n\n\t\t\t\t// b1 < 0, no intersection\n\t\t\t\tif ( DdQxE2 < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\tvar DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );\n\n\t\t\t\t// b2 < 0, no intersection\n\t\t\t\tif ( DdE1xQ < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// b1+b2 > 1, no intersection\n\t\t\t\tif ( DdQxE2 + DdE1xQ > DdN ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// Line intersects triangle, check if ray does.\n\t\t\t\tvar QdN = - sign * diff.dot( normal );\n\n\t\t\t\t// t < 0, no intersection\n\t\t\t\tif ( QdN < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// Ray intersects triangle.\n\t\t\t\treturn this.at( QdN / DdN, target );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyMatrix4: function ( matrix4 ) {\n\n\t\t\tthis.origin.applyMatrix4( matrix4 );\n\t\t\tthis.direction.transformDirection( matrix4 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( ray ) {\n\n\t\t\treturn ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Triangle( a, b, c ) {\n\n\t\tthis.a = ( a !== undefined ) ? a : new Vector3();\n\t\tthis.b = ( b !== undefined ) ? b : new Vector3();\n\t\tthis.c = ( c !== undefined ) ? c : new Vector3();\n\n\t}\n\n\tObject.assign( Triangle, {\n\n\t\tgetNormal: function () {\n\n\t\t\tvar v0 = new Vector3();\n\n\t\t\treturn function getNormal( a, b, c, target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Triangle: .getNormal() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\ttarget.subVectors( c, b );\n\t\t\t\tv0.subVectors( a, b );\n\t\t\t\ttarget.cross( v0 );\n\n\t\t\t\tvar targetLengthSq = target.lengthSq();\n\t\t\t\tif ( targetLengthSq > 0 ) {\n\n\t\t\t\t\treturn target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) );\n\n\t\t\t\t}\n\n\t\t\t\treturn target.set( 0, 0, 0 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\t// static/instance method to calculate barycentric coordinates\n\t\t// based on: http://www.blackpawn.com/texts/pointinpoly/default.html\n\t\tgetBarycoord: function () {\n\n\t\t\tvar v0 = new Vector3();\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function getBarycoord( point, a, b, c, target ) {\n\n\t\t\t\tv0.subVectors( c, a );\n\t\t\t\tv1.subVectors( b, a );\n\t\t\t\tv2.subVectors( point, a );\n\n\t\t\t\tvar dot00 = v0.dot( v0 );\n\t\t\t\tvar dot01 = v0.dot( v1 );\n\t\t\t\tvar dot02 = v0.dot( v2 );\n\t\t\t\tvar dot11 = v1.dot( v1 );\n\t\t\t\tvar dot12 = v1.dot( v2 );\n\n\t\t\t\tvar denom = ( dot00 * dot11 - dot01 * dot01 );\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Triangle: .getBarycoord() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\t// collinear or singular triangle\n\t\t\t\tif ( denom === 0 ) {\n\n\t\t\t\t\t// arbitrary location outside of triangle?\n\t\t\t\t\t// not sure if this is the best idea, maybe should be returning undefined\n\t\t\t\t\treturn target.set( - 2, - 1, - 1 );\n\n\t\t\t\t}\n\n\t\t\t\tvar invDenom = 1 / denom;\n\t\t\t\tvar u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;\n\t\t\t\tvar v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;\n\n\t\t\t\t// barycentric coordinates must always sum to 1\n\t\t\t\treturn target.set( 1 - u - v, v, u );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcontainsPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function containsPoint( point, a, b, c ) {\n\n\t\t\t\tTriangle.getBarycoord( point, a, b, c, v1 );\n\n\t\t\t\treturn ( v1.x >= 0 ) && ( v1.y >= 0 ) && ( ( v1.x + v1.y ) <= 1 );\n\n\t\t\t};\n\n\t\t}()\n\n\t} );\n\n\tObject.assign( Triangle.prototype, {\n\n\t\tset: function ( a, b, c ) {\n\n\t\t\tthis.a.copy( a );\n\t\t\tthis.b.copy( b );\n\t\t\tthis.c.copy( c );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPointsAndIndices: function ( points, i0, i1, i2 ) {\n\n\t\t\tthis.a.copy( points[ i0 ] );\n\t\t\tthis.b.copy( points[ i1 ] );\n\t\t\tthis.c.copy( points[ i2 ] );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( triangle ) {\n\n\t\t\tthis.a.copy( triangle.a );\n\t\t\tthis.b.copy( triangle.b );\n\t\t\tthis.c.copy( triangle.c );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetArea: function () {\n\n\t\t\tvar v0 = new Vector3();\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function getArea() {\n\n\t\t\t\tv0.subVectors( this.c, this.b );\n\t\t\t\tv1.subVectors( this.a, this.b );\n\n\t\t\t\treturn v0.cross( v1 ).length() * 0.5;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetMidpoint: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Triangle: .getMidpoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );\n\n\t\t},\n\n\t\tgetNormal: function ( target ) {\n\n\t\t\treturn Triangle.getNormal( this.a, this.b, this.c, target );\n\n\t\t},\n\n\t\tgetPlane: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Triangle: .getPlane() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.setFromCoplanarPoints( this.a, this.b, this.c );\n\n\t\t},\n\n\t\tgetBarycoord: function ( point, target ) {\n\n\t\t\treturn Triangle.getBarycoord( point, this.a, this.b, this.c, target );\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn Triangle.containsPoint( point, this.a, this.b, this.c );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsTriangle( this );\n\n\t\t},\n\n\t\tclosestPointToPoint: function () {\n\n\t\t\tvar vab = new Vector3();\n\t\t\tvar vac = new Vector3();\n\t\t\tvar vbc = new Vector3();\n\t\t\tvar vap = new Vector3();\n\t\t\tvar vbp = new Vector3();\n\t\t\tvar vcp = new Vector3();\n\n\t\t\treturn function closestPointToPoint( p, target ) {\n\n\t\t\t\tif ( target === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Triangle: .closestPointToPoint() target is now required' );\n\t\t\t\t\ttarget = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tvar a = this.a, b = this.b, c = this.c;\n\t\t\t\tvar v, w;\n\n\t\t\t\t// algorithm thanks to Real-Time Collision Detection by Christer Ericson,\n\t\t\t\t// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,\n\t\t\t\t// under the accompanying license; see chapter 5.1.5 for detailed explanation.\n\t\t\t\t// basically, we're distinguishing which of the voronoi regions of the triangle\n\t\t\t\t// the point lies in with the minimum amount of redundant computation.\n\n\t\t\t\tvab.subVectors( b, a );\n\t\t\t\tvac.subVectors( c, a );\n\t\t\t\tvap.subVectors( p, a );\n\t\t\t\tvar d1 = vab.dot( vap );\n\t\t\t\tvar d2 = vac.dot( vap );\n\t\t\t\tif ( d1 <= 0 && d2 <= 0 ) {\n\n\t\t\t\t\t// vertex region of A; barycentric coords (1, 0, 0)\n\t\t\t\t\treturn target.copy( a );\n\n\t\t\t\t}\n\n\t\t\t\tvbp.subVectors( p, b );\n\t\t\t\tvar d3 = vab.dot( vbp );\n\t\t\t\tvar d4 = vac.dot( vbp );\n\t\t\t\tif ( d3 >= 0 && d4 <= d3 ) {\n\n\t\t\t\t\t// vertex region of B; barycentric coords (0, 1, 0)\n\t\t\t\t\treturn target.copy( b );\n\n\t\t\t\t}\n\n\t\t\t\tvar vc = d1 * d4 - d3 * d2;\n\t\t\t\tif ( vc <= 0 && d1 >= 0 && d3 <= 0 ) {\n\n\t\t\t\t\tv = d1 / ( d1 - d3 );\n\t\t\t\t\t// edge region of AB; barycentric coords (1-v, v, 0)\n\t\t\t\t\treturn target.copy( a ).addScaledVector( vab, v );\n\n\t\t\t\t}\n\n\t\t\t\tvcp.subVectors( p, c );\n\t\t\t\tvar d5 = vab.dot( vcp );\n\t\t\t\tvar d6 = vac.dot( vcp );\n\t\t\t\tif ( d6 >= 0 && d5 <= d6 ) {\n\n\t\t\t\t\t// vertex region of C; barycentric coords (0, 0, 1)\n\t\t\t\t\treturn target.copy( c );\n\n\t\t\t\t}\n\n\t\t\t\tvar vb = d5 * d2 - d1 * d6;\n\t\t\t\tif ( vb <= 0 && d2 >= 0 && d6 <= 0 ) {\n\n\t\t\t\t\tw = d2 / ( d2 - d6 );\n\t\t\t\t\t// edge region of AC; barycentric coords (1-w, 0, w)\n\t\t\t\t\treturn target.copy( a ).addScaledVector( vac, w );\n\n\t\t\t\t}\n\n\t\t\t\tvar va = d3 * d6 - d5 * d4;\n\t\t\t\tif ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) {\n\n\t\t\t\t\tvbc.subVectors( c, b );\n\t\t\t\t\tw = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) );\n\t\t\t\t\t// edge region of BC; barycentric coords (0, 1-w, w)\n\t\t\t\t\treturn target.copy( b ).addScaledVector( vbc, w ); // edge region of BC\n\n\t\t\t\t}\n\n\t\t\t\t// face region\n\t\t\t\tvar denom = 1 / ( va + vb + vc );\n\t\t\t\t// u = va * denom\n\t\t\t\tv = vb * denom;\n\t\t\t\tw = vc * denom;\n\t\t\t\treturn target.copy( a ).addScaledVector( vab, v ).addScaledVector( vac, w );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tequals: function ( triangle ) {\n\n\t\t\treturn triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author jonobr1 / http://jonobr1.com/\n\t */\n\n\tfunction Mesh( geometry, material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Mesh';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );\n\n\t\tthis.drawMode = TrianglesDrawMode;\n\n\t\tthis.updateMorphTargets();\n\n\t}\n\n\tMesh.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Mesh,\n\n\t\tisMesh: true,\n\n\t\tsetDrawMode: function ( value ) {\n\n\t\t\tthis.drawMode = value;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.drawMode = source.drawMode;\n\n\t\t\tif ( source.morphTargetInfluences !== undefined ) {\n\n\t\t\t\tthis.morphTargetInfluences = source.morphTargetInfluences.slice();\n\n\t\t\t}\n\n\t\t\tif ( source.morphTargetDictionary !== undefined ) {\n\n\t\t\t\tthis.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateMorphTargets: function () {\n\n\t\t\tvar geometry = this.geometry;\n\t\t\tvar m, ml, name;\n\n\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\tvar morphAttributes = geometry.morphAttributes;\n\t\t\t\tvar keys = Object.keys( morphAttributes );\n\n\t\t\t\tif ( keys.length > 0 ) {\n\n\t\t\t\t\tvar morphAttribute = morphAttributes[ keys[ 0 ] ];\n\n\t\t\t\t\tif ( morphAttribute !== undefined ) {\n\n\t\t\t\t\t\tthis.morphTargetInfluences = [];\n\t\t\t\t\t\tthis.morphTargetDictionary = {};\n\n\t\t\t\t\t\tfor ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {\n\n\t\t\t\t\t\t\tname = morphAttribute[ m ].name || String( m );\n\n\t\t\t\t\t\t\tthis.morphTargetInfluences.push( 0 );\n\t\t\t\t\t\t\tthis.morphTargetDictionary[ name ] = m;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar morphTargets = geometry.morphTargets;\n\n\t\t\t\tif ( morphTargets !== undefined && morphTargets.length > 0 ) {\n\n\t\t\t\t\tthis.morphTargetInfluences = [];\n\t\t\t\t\tthis.morphTargetDictionary = {};\n\n\t\t\t\t\tfor ( m = 0, ml = morphTargets.length; m < ml; m ++ ) {\n\n\t\t\t\t\t\tname = morphTargets[ m ].name || String( m );\n\n\t\t\t\t\t\tthis.morphTargetInfluences.push( 0 );\n\t\t\t\t\t\tthis.morphTargetDictionary[ name ] = m;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\tvar vA = new Vector3();\n\t\t\tvar vB = new Vector3();\n\t\t\tvar vC = new Vector3();\n\n\t\t\tvar tempA = new Vector3();\n\t\t\tvar tempB = new Vector3();\n\t\t\tvar tempC = new Vector3();\n\n\t\t\tvar uvA = new Vector2();\n\t\t\tvar uvB = new Vector2();\n\t\t\tvar uvC = new Vector2();\n\n\t\t\tvar barycoord = new Vector3();\n\n\t\t\tvar intersectionPoint = new Vector3();\n\t\t\tvar intersectionPointWorld = new Vector3();\n\n\t\t\tfunction uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {\n\n\t\t\t\tTriangle.getBarycoord( point, p1, p2, p3, barycoord );\n\n\t\t\t\tuv1.multiplyScalar( barycoord.x );\n\t\t\t\tuv2.multiplyScalar( barycoord.y );\n\t\t\t\tuv3.multiplyScalar( barycoord.z );\n\n\t\t\t\tuv1.add( uv2 ).add( uv3 );\n\n\t\t\t\treturn uv1.clone();\n\n\t\t\t}\n\n\t\t\tfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\n\n\t\t\t\tvar intersect;\n\n\t\t\t\tif ( material.side === BackSide ) {\n\n\t\t\t\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\n\n\t\t\t\t}\n\n\t\t\t\tif ( intersect === null ) return null;\n\n\t\t\t\tintersectionPointWorld.copy( point );\n\t\t\t\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\n\n\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\n\n\t\t\t\treturn {\n\t\t\t\t\tdistance: distance,\n\t\t\t\t\tpoint: intersectionPointWorld.clone(),\n\t\t\t\t\tobject: object\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tfunction checkBufferGeometryIntersection( object, material, raycaster, ray, position, uv, a, b, c ) {\n\n\t\t\t\tvA.fromBufferAttribute( position, a );\n\t\t\t\tvB.fromBufferAttribute( position, b );\n\t\t\t\tvC.fromBufferAttribute( position, c );\n\n\t\t\t\tvar intersection = checkIntersection( object, material, raycaster, ray, vA, vB, vC, intersectionPoint );\n\n\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\tif ( uv ) {\n\n\t\t\t\t\t\tuvA.fromBufferAttribute( uv, a );\n\t\t\t\t\t\tuvB.fromBufferAttribute( uv, b );\n\t\t\t\t\t\tuvC.fromBufferAttribute( uv, c );\n\n\t\t\t\t\t\tintersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar face = new Face3( a, b, c );\n\t\t\t\t\tTriangle.getNormal( vA, vB, vC, face.normal );\n\n\t\t\t\t\tintersection.face = face;\n\n\t\t\t\t}\n\n\t\t\t\treturn intersection;\n\n\t\t\t}\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar material = this.material;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\n\t\t\t\tif ( material === undefined ) return;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\t// Check boundingBox before continuing\n\n\t\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\t\tif ( ray.intersectsBox( geometry.boundingBox ) === false ) return;\n\n\t\t\t\t}\n\n\t\t\t\tvar intersection;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\tvar a, b, c;\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar position = geometry.attributes.position;\n\t\t\t\t\tvar uv = geometry.attributes.uv;\n\t\t\t\t\tvar groups = geometry.groups;\n\t\t\t\t\tvar drawRange = geometry.drawRange;\n\t\t\t\t\tvar i, j, il, jl;\n\t\t\t\t\tvar group, groupMaterial;\n\t\t\t\t\tvar start, end;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\t// indexed buffer geometry\n\n\t\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\t\tfor ( i = 0, il = groups.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\t\tgroup = groups[ i ];\n\t\t\t\t\t\t\t\tgroupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\tstart = Math.max( group.start, drawRange.start );\n\t\t\t\t\t\t\t\tend = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\t\tfor ( j = start, jl = end; j < jl; j += 3 ) {\n\n\t\t\t\t\t\t\t\t\ta = index.getX( j );\n\t\t\t\t\t\t\t\t\tb = index.getX( j + 1 );\n\t\t\t\t\t\t\t\t\tc = index.getX( j + 2 );\n\n\t\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics\n\t\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tstart = Math.max( 0, drawRange.start );\n\t\t\t\t\t\t\tend = Math.min( index.count, ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\tfor ( i = start, il = end; i < il; i += 3 ) {\n\n\t\t\t\t\t\t\t\ta = index.getX( i );\n\t\t\t\t\t\t\t\tb = index.getX( i + 1 );\n\t\t\t\t\t\t\t\tc = index.getX( i + 2 );\n\n\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics\n\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( position !== undefined ) {\n\n\t\t\t\t\t\t// non-indexed buffer geometry\n\n\t\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\t\tfor ( i = 0, il = groups.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\t\tgroup = groups[ i ];\n\t\t\t\t\t\t\t\tgroupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\tstart = Math.max( group.start, drawRange.start );\n\t\t\t\t\t\t\t\tend = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\t\tfor ( j = start, jl = end; j < jl; j += 3 ) {\n\n\t\t\t\t\t\t\t\t\ta = j;\n\t\t\t\t\t\t\t\t\tb = j + 1;\n\t\t\t\t\t\t\t\t\tc = j + 2;\n\n\t\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics\n\t\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tstart = Math.max( 0, drawRange.start );\n\t\t\t\t\t\t\tend = Math.min( position.count, ( drawRange.start + drawRange.count ) );\n\n\t\t\t\t\t\t\tfor ( i = start, il = end; i < il; i += 3 ) {\n\n\t\t\t\t\t\t\t\ta = i;\n\t\t\t\t\t\t\t\tb = i + 1;\n\t\t\t\t\t\t\t\tc = i + 2;\n\n\t\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, uv, a, b, c );\n\n\t\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics\n\t\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar fvA, fvB, fvC;\n\t\t\t\t\tvar isMultiMaterial = Array.isArray( material );\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar faces = geometry.faces;\n\t\t\t\t\tvar uvs;\n\n\t\t\t\t\tvar faceVertexUvs = geometry.faceVertexUvs[ 0 ];\n\t\t\t\t\tif ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;\n\n\t\t\t\t\tfor ( var f = 0, fl = faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\t\tvar face = faces[ f ];\n\t\t\t\t\t\tvar faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;\n\n\t\t\t\t\t\tif ( faceMaterial === undefined ) continue;\n\n\t\t\t\t\t\tfvA = vertices[ face.a ];\n\t\t\t\t\t\tfvB = vertices[ face.b ];\n\t\t\t\t\t\tfvC = vertices[ face.c ];\n\n\t\t\t\t\t\tif ( faceMaterial.morphTargets === true ) {\n\n\t\t\t\t\t\t\tvar morphTargets = geometry.morphTargets;\n\t\t\t\t\t\t\tvar morphInfluences = this.morphTargetInfluences;\n\n\t\t\t\t\t\t\tvA.set( 0, 0, 0 );\n\t\t\t\t\t\t\tvB.set( 0, 0, 0 );\n\t\t\t\t\t\t\tvC.set( 0, 0, 0 );\n\n\t\t\t\t\t\t\tfor ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {\n\n\t\t\t\t\t\t\t\tvar influence = morphInfluences[ t ];\n\n\t\t\t\t\t\t\t\tif ( influence === 0 ) continue;\n\n\t\t\t\t\t\t\t\tvar targets = morphTargets[ t ].vertices;\n\n\t\t\t\t\t\t\t\tvA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );\n\t\t\t\t\t\t\t\tvB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );\n\t\t\t\t\t\t\t\tvC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tvA.add( fvA );\n\t\t\t\t\t\t\tvB.add( fvB );\n\t\t\t\t\t\t\tvC.add( fvC );\n\n\t\t\t\t\t\t\tfvA = vA;\n\t\t\t\t\t\t\tfvB = vB;\n\t\t\t\t\t\t\tfvC = vC;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tintersection = checkIntersection( this, faceMaterial, raycaster, ray, fvA, fvB, fvC, intersectionPoint );\n\n\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\tif ( uvs && uvs[ f ] ) {\n\n\t\t\t\t\t\t\t\tvar uvs_f = uvs[ f ];\n\t\t\t\t\t\t\t\tuvA.copy( uvs_f[ 0 ] );\n\t\t\t\t\t\t\t\tuvB.copy( uvs_f[ 1 ] );\n\t\t\t\t\t\t\t\tuvC.copy( uvs_f[ 2 ] );\n\n\t\t\t\t\t\t\t\tintersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tintersection.face = face;\n\t\t\t\t\t\t\tintersection.faceIndex = f;\n\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLBackground( renderer, state, objects, premultipliedAlpha ) {\n\n\t\tvar clearColor = new Color( 0x000000 );\n\t\tvar clearAlpha = 0;\n\n\t\tvar planeCamera, planeMesh;\n\t\tvar boxMesh;\n\n\t\tfunction render( renderList, scene, camera, forceClear ) {\n\n\t\t\tvar background = scene.background;\n\n\t\t\tif ( background === null ) {\n\n\t\t\t\tsetClear( clearColor, clearAlpha );\n\n\t\t\t} else if ( background && background.isColor ) {\n\n\t\t\t\tsetClear( background, 1 );\n\t\t\t\tforceClear = true;\n\n\t\t\t}\n\n\t\t\tif ( renderer.autoClear || forceClear ) {\n\n\t\t\t\trenderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );\n\n\t\t\t}\n\n\t\t\tif ( background && background.isCubeTexture ) {\n\n\t\t\t\tif ( boxMesh === undefined ) {\n\n\t\t\t\t\tboxMesh = new Mesh(\n\t\t\t\t\t\tnew BoxBufferGeometry( 1, 1, 1 ),\n\t\t\t\t\t\tnew ShaderMaterial( {\n\t\t\t\t\t\t\tuniforms: ShaderLib.cube.uniforms,\n\t\t\t\t\t\t\tvertexShader: ShaderLib.cube.vertexShader,\n\t\t\t\t\t\t\tfragmentShader: ShaderLib.cube.fragmentShader,\n\t\t\t\t\t\t\tside: BackSide,\n\t\t\t\t\t\t\tdepthTest: true,\n\t\t\t\t\t\t\tdepthWrite: false,\n\t\t\t\t\t\t\tfog: false\n\t\t\t\t\t\t} )\n\t\t\t\t\t);\n\n\t\t\t\t\tboxMesh.geometry.removeAttribute( 'normal' );\n\t\t\t\t\tboxMesh.geometry.removeAttribute( 'uv' );\n\n\t\t\t\t\tboxMesh.onBeforeRender = function ( renderer, scene, camera ) {\n\n\t\t\t\t\t\tthis.matrixWorld.copyPosition( camera.matrixWorld );\n\n\t\t\t\t\t};\n\n\t\t\t\t\tobjects.update( boxMesh );\n\n\t\t\t\t}\n\n\t\t\t\tboxMesh.material.uniforms.tCube.value = background;\n\n\t\t\t\trenderList.push( boxMesh, boxMesh.geometry, boxMesh.material, 0, null );\n\n\t\t\t} else if ( background && background.isTexture ) {\n\n\t\t\t\tif ( planeCamera === undefined ) {\n\n\t\t\t\t\tplaneCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );\n\n\t\t\t\t\tplaneMesh = new Mesh(\n\t\t\t\t\t\tnew PlaneBufferGeometry( 2, 2 ),\n\t\t\t\t\t\tnew MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } )\n\t\t\t\t\t);\n\n\t\t\t\t\tobjects.update( planeMesh );\n\n\t\t\t\t}\n\n\t\t\t\tplaneMesh.material.map = background;\n\n\t\t\t\t// TODO Push this to renderList\n\n\t\t\t\trenderer.renderBufferDirect( planeCamera, null, planeMesh.geometry, planeMesh.material, planeMesh, null );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setClear( color, alpha ) {\n\n\t\t\tstate.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tgetClearColor: function () {\n\n\t\t\t\treturn clearColor;\n\n\t\t\t},\n\t\t\tsetClearColor: function ( color, alpha ) {\n\n\t\t\t\tclearColor.set( color );\n\t\t\t\tclearAlpha = alpha !== undefined ? alpha : 1;\n\t\t\t\tsetClear( clearColor, clearAlpha );\n\n\t\t\t},\n\t\t\tgetClearAlpha: function () {\n\n\t\t\t\treturn clearAlpha;\n\n\t\t\t},\n\t\t\tsetClearAlpha: function ( alpha ) {\n\n\t\t\t\tclearAlpha = alpha;\n\t\t\t\tsetClear( clearColor, clearAlpha );\n\n\t\t\t},\n\t\t\trender: render\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLBufferRenderer( gl, extensions, info, capabilities ) {\n\n\t\tvar mode;\n\n\t\tfunction setMode( value ) {\n\n\t\t\tmode = value;\n\n\t\t}\n\n\t\tfunction render( start, count ) {\n\n\t\t\tgl.drawArrays( mode, start, count );\n\n\t\t\tinfo.update( count, mode );\n\n\t\t}\n\n\t\tfunction renderInstances( geometry, start, count ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( capabilities.isWebGL2 ) {\n\n\t\t\t\textension = gl;\n\n\t\t\t} else {\n\n\t\t\t\textension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\textension[ capabilities.isWebGL2 ? 'drawArraysInstanced' : 'drawArraysInstancedANGLE' ]( mode, start, count, geometry.maxInstancedCount );\n\n\t\t\tinfo.update( count, mode, geometry.maxInstancedCount );\n\n\t\t}\n\n\t\t//\n\n\t\tthis.setMode = setMode;\n\t\tthis.render = render;\n\t\tthis.renderInstances = renderInstances;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLCapabilities( gl, extensions, parameters ) {\n\n\t\tvar maxAnisotropy;\n\n\t\tfunction getMaxAnisotropy() {\n\n\t\t\tif ( maxAnisotropy !== undefined ) return maxAnisotropy;\n\n\t\t\tvar extension = extensions.get( 'EXT_texture_filter_anisotropic' );\n\n\t\t\tif ( extension !== null ) {\n\n\t\t\t\tmaxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );\n\n\t\t\t} else {\n\n\t\t\t\tmaxAnisotropy = 0;\n\n\t\t\t}\n\n\t\t\treturn maxAnisotropy;\n\n\t\t}\n\n\t\tfunction getMaxPrecision( precision ) {\n\n\t\t\tif ( precision === 'highp' ) {\n\n\t\t\t\tif ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&\n\t\t\t\t gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {\n\n\t\t\t\t\treturn 'highp';\n\n\t\t\t\t}\n\n\t\t\t\tprecision = 'mediump';\n\n\t\t\t}\n\n\t\t\tif ( precision === 'mediump' ) {\n\n\t\t\t\tif ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&\n\t\t\t\t gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {\n\n\t\t\t\t\treturn 'mediump';\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn 'lowp';\n\n\t\t}\n\n\t\tvar isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext;\n\n\t\tvar precision = parameters.precision !== undefined ? parameters.precision : 'highp';\n\t\tvar maxPrecision = getMaxPrecision( precision );\n\n\t\tif ( maxPrecision !== precision ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );\n\t\t\tprecision = maxPrecision;\n\n\t\t}\n\n\t\tvar logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;\n\n\t\tvar maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );\n\t\tvar maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );\n\t\tvar maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );\n\t\tvar maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );\n\n\t\tvar maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );\n\t\tvar maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );\n\t\tvar maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );\n\t\tvar maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );\n\n\t\tvar vertexTextures = maxVertexTextures > 0;\n\t\tvar floatFragmentTextures = isWebGL2 || !! extensions.get( 'OES_texture_float' );\n\t\tvar floatVertexTextures = vertexTextures && floatFragmentTextures;\n\n\t\treturn {\n\n\t\t\tisWebGL2: isWebGL2,\n\n\t\t\tgetMaxAnisotropy: getMaxAnisotropy,\n\t\t\tgetMaxPrecision: getMaxPrecision,\n\n\t\t\tprecision: precision,\n\t\t\tlogarithmicDepthBuffer: logarithmicDepthBuffer,\n\n\t\t\tmaxTextures: maxTextures,\n\t\t\tmaxVertexTextures: maxVertexTextures,\n\t\t\tmaxTextureSize: maxTextureSize,\n\t\t\tmaxCubemapSize: maxCubemapSize,\n\n\t\t\tmaxAttributes: maxAttributes,\n\t\t\tmaxVertexUniforms: maxVertexUniforms,\n\t\t\tmaxVaryings: maxVaryings,\n\t\t\tmaxFragmentUniforms: maxFragmentUniforms,\n\n\t\t\tvertexTextures: vertexTextures,\n\t\t\tfloatFragmentTextures: floatFragmentTextures,\n\t\t\tfloatVertexTextures: floatVertexTextures\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author tschw\n\t */\n\n\tfunction WebGLClipping() {\n\n\t\tvar scope = this,\n\n\t\t\tglobalState = null,\n\t\t\tnumGlobalPlanes = 0,\n\t\t\tlocalClippingEnabled = false,\n\t\t\trenderingShadows = false,\n\n\t\t\tplane = new Plane(),\n\t\t\tviewNormalMatrix = new Matrix3(),\n\n\t\t\tuniform = { value: null, needsUpdate: false };\n\n\t\tthis.uniform = uniform;\n\t\tthis.numPlanes = 0;\n\t\tthis.numIntersection = 0;\n\n\t\tthis.init = function ( planes, enableLocalClipping, camera ) {\n\n\t\t\tvar enabled =\n\t\t\t\tplanes.length !== 0 ||\n\t\t\t\tenableLocalClipping ||\n\t\t\t\t// enable state of previous frame - the clipping code has to\n\t\t\t\t// run another frame in order to reset the state:\n\t\t\t\tnumGlobalPlanes !== 0 ||\n\t\t\t\tlocalClippingEnabled;\n\n\t\t\tlocalClippingEnabled = enableLocalClipping;\n\n\t\t\tglobalState = projectPlanes( planes, camera, 0 );\n\t\t\tnumGlobalPlanes = planes.length;\n\n\t\t\treturn enabled;\n\n\t\t};\n\n\t\tthis.beginShadows = function () {\n\n\t\t\trenderingShadows = true;\n\t\t\tprojectPlanes( null );\n\n\t\t};\n\n\t\tthis.endShadows = function () {\n\n\t\t\trenderingShadows = false;\n\t\t\tresetGlobalState();\n\n\t\t};\n\n\t\tthis.setState = function ( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {\n\n\t\t\tif ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {\n\n\t\t\t\t// there's no local clipping\n\n\t\t\t\tif ( renderingShadows ) {\n\n\t\t\t\t\t// there's no global clipping\n\n\t\t\t\t\tprojectPlanes( null );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tresetGlobalState();\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar nGlobal = renderingShadows ? 0 : numGlobalPlanes,\n\t\t\t\t\tlGlobal = nGlobal * 4,\n\n\t\t\t\t\tdstArray = cache.clippingState || null;\n\n\t\t\t\tuniform.value = dstArray; // ensure unique state\n\n\t\t\t\tdstArray = projectPlanes( planes, camera, lGlobal, fromCache );\n\n\t\t\t\tfor ( var i = 0; i !== lGlobal; ++ i ) {\n\n\t\t\t\t\tdstArray[ i ] = globalState[ i ];\n\n\t\t\t\t}\n\n\t\t\t\tcache.clippingState = dstArray;\n\t\t\t\tthis.numIntersection = clipIntersection ? this.numPlanes : 0;\n\t\t\t\tthis.numPlanes += nGlobal;\n\n\t\t\t}\n\n\n\t\t};\n\n\t\tfunction resetGlobalState() {\n\n\t\t\tif ( uniform.value !== globalState ) {\n\n\t\t\t\tuniform.value = globalState;\n\t\t\t\tuniform.needsUpdate = numGlobalPlanes > 0;\n\n\t\t\t}\n\n\t\t\tscope.numPlanes = numGlobalPlanes;\n\t\t\tscope.numIntersection = 0;\n\n\t\t}\n\n\t\tfunction projectPlanes( planes, camera, dstOffset, skipTransform ) {\n\n\t\t\tvar nPlanes = planes !== null ? planes.length : 0,\n\t\t\t\tdstArray = null;\n\n\t\t\tif ( nPlanes !== 0 ) {\n\n\t\t\t\tdstArray = uniform.value;\n\n\t\t\t\tif ( skipTransform !== true || dstArray === null ) {\n\n\t\t\t\t\tvar flatSize = dstOffset + nPlanes * 4,\n\t\t\t\t\t\tviewMatrix = camera.matrixWorldInverse;\n\n\t\t\t\t\tviewNormalMatrix.getNormalMatrix( viewMatrix );\n\n\t\t\t\t\tif ( dstArray === null || dstArray.length < flatSize ) {\n\n\t\t\t\t\t\tdstArray = new Float32Array( flatSize );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( var i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {\n\n\t\t\t\t\t\tplane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );\n\n\t\t\t\t\t\tplane.normal.toArray( dstArray, i4 );\n\t\t\t\t\t\tdstArray[ i4 + 3 ] = plane.constant;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tuniform.value = dstArray;\n\t\t\t\tuniform.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tscope.numPlanes = nPlanes;\n\n\t\t\treturn dstArray;\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLExtensions( gl ) {\n\n\t\tvar extensions = {};\n\n\t\treturn {\n\n\t\t\tget: function ( name ) {\n\n\t\t\t\tif ( extensions[ name ] !== undefined ) {\n\n\t\t\t\t\treturn extensions[ name ];\n\n\t\t\t\t}\n\n\t\t\t\tvar extension;\n\n\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\tcase 'WEBGL_depth_texture':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'EXT_texture_filter_anisotropic':\n\t\t\t\t\t\textension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'WEBGL_compressed_texture_s3tc':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'WEBGL_compressed_texture_pvrtc':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\textension = gl.getExtension( name );\n\n\t\t\t\t}\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );\n\n\t\t\t\t}\n\n\t\t\t\textensions[ name ] = extension;\n\n\t\t\t\treturn extension;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLGeometries( gl, attributes, info ) {\n\n\t\tvar geometries = {};\n\t\tvar wireframeAttributes = {};\n\n\t\tfunction onGeometryDispose( event ) {\n\n\t\t\tvar geometry = event.target;\n\t\t\tvar buffergeometry = geometries[ geometry.id ];\n\n\t\t\tif ( buffergeometry.index !== null ) {\n\n\t\t\t\tattributes.remove( buffergeometry.index );\n\n\t\t\t}\n\n\t\t\tfor ( var name in buffergeometry.attributes ) {\n\n\t\t\t\tattributes.remove( buffergeometry.attributes[ name ] );\n\n\t\t\t}\n\n\t\t\tgeometry.removeEventListener( 'dispose', onGeometryDispose );\n\n\t\t\tdelete geometries[ geometry.id ];\n\n\t\t\tvar attribute = wireframeAttributes[ buffergeometry.id ];\n\n\t\t\tif ( attribute ) {\n\n\t\t\t\tattributes.remove( attribute );\n\t\t\t\tdelete wireframeAttributes[ buffergeometry.id ];\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tinfo.memory.geometries --;\n\n\t\t}\n\n\t\tfunction get( object, geometry ) {\n\n\t\t\tvar buffergeometry = geometries[ geometry.id ];\n\n\t\t\tif ( buffergeometry ) return buffergeometry;\n\n\t\t\tgeometry.addEventListener( 'dispose', onGeometryDispose );\n\n\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\tbuffergeometry = geometry;\n\n\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\tif ( geometry._bufferGeometry === undefined ) {\n\n\t\t\t\t\tgeometry._bufferGeometry = new BufferGeometry().setFromObject( object );\n\n\t\t\t\t}\n\n\t\t\t\tbuffergeometry = geometry._bufferGeometry;\n\n\t\t\t}\n\n\t\t\tgeometries[ geometry.id ] = buffergeometry;\n\n\t\t\tinfo.memory.geometries ++;\n\n\t\t\treturn buffergeometry;\n\n\t\t}\n\n\t\tfunction update( geometry ) {\n\n\t\t\tvar index = geometry.index;\n\t\t\tvar geometryAttributes = geometry.attributes;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tattributes.update( index, gl.ELEMENT_ARRAY_BUFFER );\n\n\t\t\t}\n\n\t\t\tfor ( var name in geometryAttributes ) {\n\n\t\t\t\tattributes.update( geometryAttributes[ name ], gl.ARRAY_BUFFER );\n\n\t\t\t}\n\n\t\t\t// morph targets\n\n\t\t\tvar morphAttributes = geometry.morphAttributes;\n\n\t\t\tfor ( var name in morphAttributes ) {\n\n\t\t\t\tvar array = morphAttributes[ name ];\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i ++ ) {\n\n\t\t\t\t\tattributes.update( array[ i ], gl.ARRAY_BUFFER );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getWireframeAttribute( geometry ) {\n\n\t\t\tvar attribute = wireframeAttributes[ geometry.id ];\n\n\t\t\tif ( attribute ) return attribute;\n\n\t\t\tvar indices = [];\n\n\t\t\tvar geometryIndex = geometry.index;\n\t\t\tvar geometryAttributes = geometry.attributes;\n\n\t\t\t// console.time( 'wireframe' );\n\n\t\t\tif ( geometryIndex !== null ) {\n\n\t\t\t\tvar array = geometryIndex.array;\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i += 3 ) {\n\n\t\t\t\t\tvar a = array[ i + 0 ];\n\t\t\t\t\tvar b = array[ i + 1 ];\n\t\t\t\t\tvar c = array[ i + 2 ];\n\n\t\t\t\t\tindices.push( a, b, b, c, c, a );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar array = geometryAttributes.position.array;\n\n\t\t\t\tfor ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {\n\n\t\t\t\t\tvar a = i + 0;\n\t\t\t\t\tvar b = i + 1;\n\t\t\t\t\tvar c = i + 2;\n\n\t\t\t\t\tindices.push( a, b, b, c, c, a );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// console.timeEnd( 'wireframe' );\n\n\t\t\tattribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );\n\n\t\t\tattributes.update( attribute, gl.ELEMENT_ARRAY_BUFFER );\n\n\t\t\twireframeAttributes[ geometry.id ] = attribute;\n\n\t\t\treturn attribute;\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tget: get,\n\t\t\tupdate: update,\n\n\t\t\tgetWireframeAttribute: getWireframeAttribute\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) {\n\n\t\tvar mode;\n\n\t\tfunction setMode( value ) {\n\n\t\t\tmode = value;\n\n\t\t}\n\n\t\tvar type, bytesPerElement;\n\n\t\tfunction setIndex( value ) {\n\n\t\t\ttype = value.type;\n\t\t\tbytesPerElement = value.bytesPerElement;\n\n\t\t}\n\n\t\tfunction render( start, count ) {\n\n\t\t\tgl.drawElements( mode, count, type, start * bytesPerElement );\n\n\t\t\tinfo.update( count, mode );\n\n\t\t}\n\n\t\tfunction renderInstances( geometry, start, count ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( capabilities.isWebGL2 ) {\n\n\t\t\t\textension = gl;\n\n\t\t\t} else {\n\n\t\t\t\tvar extension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\textension[ capabilities.isWebGL2 ? 'drawElementsInstanced' : 'drawElementsInstancedANGLE' ]( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );\n\n\t\t\tinfo.update( count, mode, geometry.maxInstancedCount );\n\n\t\t}\n\n\t\t//\n\n\t\tthis.setMode = setMode;\n\t\tthis.setIndex = setIndex;\n\t\tthis.render = render;\n\t\tthis.renderInstances = renderInstances;\n\n\t}\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction WebGLInfo( gl ) {\n\n\t\tvar memory = {\n\t\t\tgeometries: 0,\n\t\t\ttextures: 0\n\t\t};\n\n\t\tvar render = {\n\t\t\tframe: 0,\n\t\t\tcalls: 0,\n\t\t\ttriangles: 0,\n\t\t\tpoints: 0,\n\t\t\tlines: 0\n\t\t};\n\n\t\tfunction update( count, mode, instanceCount ) {\n\n\t\t\tinstanceCount = instanceCount || 1;\n\n\t\t\trender.calls ++;\n\n\t\t\tswitch ( mode ) {\n\n\t\t\t\tcase gl.TRIANGLES:\n\t\t\t\t\trender.triangles += instanceCount * ( count / 3 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.TRIANGLE_STRIP:\n\t\t\t\tcase gl.TRIANGLE_FAN:\n\t\t\t\t\trender.triangles += instanceCount * ( count - 2 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.LINES:\n\t\t\t\t\trender.lines += instanceCount * ( count / 2 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.LINE_STRIP:\n\t\t\t\t\trender.lines += instanceCount * ( count - 1 );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.LINE_LOOP:\n\t\t\t\t\trender.lines += instanceCount * count;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase gl.POINTS:\n\t\t\t\t\trender.points += instanceCount * count;\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tconsole.error( 'THREE.WebGLInfo: Unknown draw mode:', mode );\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction reset() {\n\n\t\t\trender.frame ++;\n\t\t\trender.calls = 0;\n\t\t\trender.triangles = 0;\n\t\t\trender.points = 0;\n\t\t\trender.lines = 0;\n\n\t\t}\n\n\t\treturn {\n\t\t\tmemory: memory,\n\t\t\trender: render,\n\t\t\tprograms: null,\n\t\t\tautoReset: true,\n\t\t\treset: reset,\n\t\t\tupdate: update\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction absNumericalSort( a, b ) {\n\n\t\treturn Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );\n\n\t}\n\n\tfunction WebGLMorphtargets( gl ) {\n\n\t\tvar influencesList = {};\n\t\tvar morphInfluences = new Float32Array( 8 );\n\n\t\tfunction update( object, geometry, material, program ) {\n\n\t\t\tvar objectInfluences = object.morphTargetInfluences;\n\n\t\t\tvar length = objectInfluences.length;\n\n\t\t\tvar influences = influencesList[ geometry.id ];\n\n\t\t\tif ( influences === undefined ) {\n\n\t\t\t\t// initialise list\n\n\t\t\t\tinfluences = [];\n\n\t\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\t\tinfluences[ i ] = [ i, 0 ];\n\n\t\t\t\t}\n\n\t\t\t\tinfluencesList[ geometry.id ] = influences;\n\n\t\t\t}\n\n\t\t\tvar morphTargets = material.morphTargets && geometry.morphAttributes.position;\n\t\t\tvar morphNormals = material.morphNormals && geometry.morphAttributes.normal;\n\n\t\t\t// Remove current morphAttributes\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tvar influence = influences[ i ];\n\n\t\t\t\tif ( influence[ 1 ] !== 0 ) {\n\n\t\t\t\t\tif ( morphTargets ) geometry.removeAttribute( 'morphTarget' + i );\n\t\t\t\t\tif ( morphNormals ) geometry.removeAttribute( 'morphNormal' + i );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Collect influences\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tvar influence = influences[ i ];\n\n\t\t\t\tinfluence[ 0 ] = i;\n\t\t\t\tinfluence[ 1 ] = objectInfluences[ i ];\n\n\t\t\t}\n\n\t\t\tinfluences.sort( absNumericalSort );\n\n\t\t\t// Add morphAttributes\n\n\t\t\tfor ( var i = 0; i < 8; i ++ ) {\n\n\t\t\t\tvar influence = influences[ i ];\n\n\t\t\t\tif ( influence ) {\n\n\t\t\t\t\tvar index = influence[ 0 ];\n\t\t\t\t\tvar value = influence[ 1 ];\n\n\t\t\t\t\tif ( value ) {\n\n\t\t\t\t\t\tif ( morphTargets ) geometry.addAttribute( 'morphTarget' + i, morphTargets[ index ] );\n\t\t\t\t\t\tif ( morphNormals ) geometry.addAttribute( 'morphNormal' + i, morphNormals[ index ] );\n\n\t\t\t\t\t\tmorphInfluences[ i ] = value;\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tmorphInfluences[ i ] = 0;\n\n\t\t\t}\n\n\t\t\tprogram.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tupdate: update\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLObjects( geometries, info ) {\n\n\t\tvar updateList = {};\n\n\t\tfunction update( object ) {\n\n\t\t\tvar frame = info.render.frame;\n\n\t\t\tvar geometry = object.geometry;\n\t\t\tvar buffergeometry = geometries.get( object, geometry );\n\n\t\t\t// Update once per frame\n\n\t\t\tif ( updateList[ buffergeometry.id ] !== frame ) {\n\n\t\t\t\tif ( geometry.isGeometry ) {\n\n\t\t\t\t\tbuffergeometry.updateFromObject( object );\n\n\t\t\t\t}\n\n\t\t\t\tgeometries.update( buffergeometry );\n\n\t\t\t\tupdateList[ buffergeometry.id ] = frame;\n\n\t\t\t}\n\n\t\t\treturn buffergeometry;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\tupdateList = {};\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tupdate: update,\n\t\t\tdispose: dispose\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {\n\n\t\timages = images !== undefined ? images : [];\n\t\tmapping = mapping !== undefined ? mapping : CubeReflectionMapping;\n\n\t\tTexture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.flipY = false;\n\n\t}\n\n\tCubeTexture.prototype = Object.create( Texture.prototype );\n\tCubeTexture.prototype.constructor = CubeTexture;\n\n\tCubeTexture.prototype.isCubeTexture = true;\n\n\tObject.defineProperty( CubeTexture.prototype, 'images', {\n\n\t\tget: function () {\n\n\t\t\treturn this.image;\n\n\t\t},\n\n\t\tset: function ( value ) {\n\n\t\t\tthis.image = value;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t * @author Mugen87 / https://github.com/Mugen87\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * Uniforms of a program.\n\t * Those form a tree structure with a special top-level container for the root,\n\t * which you get by calling 'new WebGLUniforms( gl, program, renderer )'.\n\t *\n\t *\n\t * Properties of inner nodes including the top-level container:\n\t *\n\t * .seq - array of nested uniforms\n\t * .map - nested uniforms by name\n\t *\n\t *\n\t * Methods of all nodes except the top-level container:\n\t *\n\t * .setValue( gl, value, [renderer] )\n\t *\n\t * \t\tuploads a uniform value(s)\n\t * \tthe 'renderer' parameter is needed for sampler uniforms\n\t *\n\t *\n\t * Static methods of the top-level container (renderer factorizations):\n\t *\n\t * .upload( gl, seq, values, renderer )\n\t *\n\t * \t\tsets uniforms in 'seq' to 'values[id].value'\n\t *\n\t * .seqWithValue( seq, values ) : filteredSeq\n\t *\n\t * \t\tfilters 'seq' entries with corresponding entry in values\n\t *\n\t *\n\t * Methods of the top-level container (renderer factorizations):\n\t *\n\t * .setValue( gl, name, value )\n\t *\n\t * \t\tsets uniform with name 'name' to 'value'\n\t *\n\t * .set( gl, obj, prop )\n\t *\n\t * \t\tsets uniform from object and property with same name than uniform\n\t *\n\t * .setOptional( gl, obj, prop )\n\t *\n\t * \t\tlike .set for an optional property of the object\n\t *\n\t */\n\n\tvar emptyTexture = new Texture();\n\tvar emptyCubeTexture = new CubeTexture();\n\n\t// --- Base for inner nodes (including the root) ---\n\n\tfunction UniformContainer() {\n\n\t\tthis.seq = [];\n\t\tthis.map = {};\n\n\t}\n\n\t// --- Utilities ---\n\n\t// Array Caches (provide typed arrays for temporary by size)\n\n\tvar arrayCacheF32 = [];\n\tvar arrayCacheI32 = [];\n\n\t// Float32Array caches used for uploading Matrix uniforms\n\n\tvar mat4array = new Float32Array( 16 );\n\tvar mat3array = new Float32Array( 9 );\n\tvar mat2array = new Float32Array( 4 );\n\n\t// Flattening for arrays of vectors and matrices\n\n\tfunction flatten( array, nBlocks, blockSize ) {\n\n\t\tvar firstElem = array[ 0 ];\n\n\t\tif ( firstElem <= 0 || firstElem > 0 ) return array;\n\t\t// unoptimized: ! isNaN( firstElem )\n\t\t// see http://jacksondunstan.com/articles/983\n\n\t\tvar n = nBlocks * blockSize,\n\t\t\tr = arrayCacheF32[ n ];\n\n\t\tif ( r === undefined ) {\n\n\t\t\tr = new Float32Array( n );\n\t\t\tarrayCacheF32[ n ] = r;\n\n\t\t}\n\n\t\tif ( nBlocks !== 0 ) {\n\n\t\t\tfirstElem.toArray( r, 0 );\n\n\t\t\tfor ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {\n\n\t\t\t\toffset += blockSize;\n\t\t\t\tarray[ i ].toArray( r, offset );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn r;\n\n\t}\n\n\tfunction arraysEqual( a, b ) {\n\n\t\tif ( a.length !== b.length ) return false;\n\n\t\tfor ( var i = 0, l = a.length; i < l; i ++ ) {\n\n\t\t\tif ( a[ i ] !== b[ i ] ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\tfunction copyArray( a, b ) {\n\n\t\tfor ( var i = 0, l = b.length; i < l; i ++ ) {\n\n\t\t\ta[ i ] = b[ i ];\n\n\t\t}\n\n\t}\n\n\t// Texture unit allocation\n\n\tfunction allocTexUnits( renderer, n ) {\n\n\t\tvar r = arrayCacheI32[ n ];\n\n\t\tif ( r === undefined ) {\n\n\t\t\tr = new Int32Array( n );\n\t\t\tarrayCacheI32[ n ] = r;\n\n\t\t}\n\n\t\tfor ( var i = 0; i !== n; ++ i )\n\t\t\tr[ i ] = renderer.allocTextureUnit();\n\n\t\treturn r;\n\n\t}\n\n\t// --- Setters ---\n\n\t// Note: Defining these methods externally, because they come in a bunch\n\t// and this way their names minify.\n\n\t// Single scalar\n\n\tfunction setValue1f( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( cache[ 0 ] === v ) return;\n\n\t\tgl.uniform1f( this.addr, v );\n\n\t\tcache[ 0 ] = v;\n\n\t}\n\n\tfunction setValue1i( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( cache[ 0 ] === v ) return;\n\n\t\tgl.uniform1i( this.addr, v );\n\n\t\tcache[ 0 ] = v;\n\n\t}\n\n\t// Single float vector (from flat array or THREE.VectorN)\n\n\tfunction setValue2fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( v.x !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) {\n\n\t\t\t\tgl.uniform2f( this.addr, v.x, v.y );\n\n\t\t\t\tcache[ 0 ] = v.x;\n\t\t\t\tcache[ 1 ] = v.y;\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniform2fv( this.addr, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t}\n\n\t}\n\n\tfunction setValue3fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( v.x !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) {\n\n\t\t\t\tgl.uniform3f( this.addr, v.x, v.y, v.z );\n\n\t\t\t\tcache[ 0 ] = v.x;\n\t\t\t\tcache[ 1 ] = v.y;\n\t\t\t\tcache[ 2 ] = v.z;\n\n\t\t\t}\n\n\t\t} else if ( v.r !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) {\n\n\t\t\t\tgl.uniform3f( this.addr, v.r, v.g, v.b );\n\n\t\t\t\tcache[ 0 ] = v.r;\n\t\t\t\tcache[ 1 ] = v.g;\n\t\t\t\tcache[ 2 ] = v.b;\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniform3fv( this.addr, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t}\n\n\t}\n\n\tfunction setValue4fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( v.x !== undefined ) {\n\n\t\t\tif ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) {\n\n\t\t\t\tgl.uniform4f( this.addr, v.x, v.y, v.z, v.w );\n\n\t\t\t\tcache[ 0 ] = v.x;\n\t\t\t\tcache[ 1 ] = v.y;\n\t\t\t\tcache[ 2 ] = v.z;\n\t\t\t\tcache[ 3 ] = v.w;\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniform4fv( this.addr, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t}\n\n\t}\n\n\t// Single matrix (from flat array or MatrixN)\n\n\tfunction setValue2fm( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar elements = v.elements;\n\n\t\tif ( elements === undefined ) {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniformMatrix2fv( this.addr, false, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, elements ) ) return;\n\n\t\t\tmat2array.set( elements );\n\n\t\t\tgl.uniformMatrix2fv( this.addr, false, mat2array );\n\n\t\t\tcopyArray( cache, elements );\n\n\t\t}\n\n\t}\n\n\tfunction setValue3fm( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar elements = v.elements;\n\n\t\tif ( elements === undefined ) {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniformMatrix3fv( this.addr, false, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, elements ) ) return;\n\n\t\t\tmat3array.set( elements );\n\n\t\t\tgl.uniformMatrix3fv( this.addr, false, mat3array );\n\n\t\t\tcopyArray( cache, elements );\n\n\t\t}\n\n\t}\n\n\tfunction setValue4fm( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar elements = v.elements;\n\n\t\tif ( elements === undefined ) {\n\n\t\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\t\tgl.uniformMatrix4fv( this.addr, false, v );\n\n\t\t\tcopyArray( cache, v );\n\n\t\t} else {\n\n\t\t\tif ( arraysEqual( cache, elements ) ) return;\n\n\t\t\tmat4array.set( elements );\n\n\t\t\tgl.uniformMatrix4fv( this.addr, false, mat4array );\n\n\t\t\tcopyArray( cache, elements );\n\n\t\t}\n\n\t}\n\n\t// Single texture (2D / Cube)\n\n\tfunction setValueT1( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar unit = renderer.allocTextureUnit();\n\n\t\tif ( cache[ 0 ] !== unit ) {\n\n\t\t\tgl.uniform1i( this.addr, unit );\n\t\t\tcache[ 0 ] = unit;\n\n\t\t}\n\n\t\trenderer.setTexture2D( v || emptyTexture, unit );\n\n\t}\n\n\tfunction setValueT6( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar unit = renderer.allocTextureUnit();\n\n\t\tif ( cache[ 0 ] !== unit ) {\n\n\t\t\tgl.uniform1i( this.addr, unit );\n\t\t\tcache[ 0 ] = unit;\n\n\t\t}\n\n\t\trenderer.setTextureCube( v || emptyCubeTexture, unit );\n\n\t}\n\n\t// Integer / Boolean vectors or arrays thereof (always flat arrays)\n\n\tfunction setValue2iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform2iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\tfunction setValue3iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform3iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\tfunction setValue4iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform4iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\t// Helper to pick the right setter for the singular case\n\n\tfunction getSingularSetter( type ) {\n\n\t\tswitch ( type ) {\n\n\t\t\tcase 0x1406: return setValue1f; // FLOAT\n\t\t\tcase 0x8b50: return setValue2fv; // _VEC2\n\t\t\tcase 0x8b51: return setValue3fv; // _VEC3\n\t\t\tcase 0x8b52: return setValue4fv; // _VEC4\n\n\t\t\tcase 0x8b5a: return setValue2fm; // _MAT2\n\t\t\tcase 0x8b5b: return setValue3fm; // _MAT3\n\t\t\tcase 0x8b5c: return setValue4fm; // _MAT4\n\n\t\t\tcase 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES\n\t\t\tcase 0x8b60: return setValueT6; // SAMPLER_CUBE\n\n\t\t\tcase 0x1404: case 0x8b56: return setValue1i; // INT, BOOL\n\t\t\tcase 0x8b53: case 0x8b57: return setValue2iv; // _VEC2\n\t\t\tcase 0x8b54: case 0x8b58: return setValue3iv; // _VEC3\n\t\t\tcase 0x8b55: case 0x8b59: return setValue4iv; // _VEC4\n\n\t\t}\n\n\t}\n\n\t// Array of scalars\n\n\tfunction setValue1fv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform1fv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\tfunction setValue1iv( gl, v ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( arraysEqual( cache, v ) ) return;\n\n\t\tgl.uniform1iv( this.addr, v );\n\n\t\tcopyArray( cache, v );\n\n\t}\n\n\t// Array of vectors (flat or from THREE classes)\n\n\tfunction setValueV2a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 2 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniform2fv( this.addr, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueV3a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 3 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniform3fv( this.addr, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueV4a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 4 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniform4fv( this.addr, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\t// Array of matrices (flat or from THREE clases)\n\n\tfunction setValueM2a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 4 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniformMatrix2fv( this.addr, false, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueM3a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 9 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniformMatrix3fv( this.addr, false, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\tfunction setValueM4a( gl, v ) {\n\n\t\tvar cache = this.cache;\n\t\tvar data = flatten( v, this.size, 16 );\n\n\t\tif ( arraysEqual( cache, data ) ) return;\n\n\t\tgl.uniformMatrix4fv( this.addr, false, data );\n\n\t\tthis.updateCache( data );\n\n\t}\n\n\t// Array of textures (2D / Cube)\n\n\tfunction setValueT1a( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar n = v.length;\n\n\t\tvar units = allocTexUnits( renderer, n );\n\n\t\tif ( arraysEqual( cache, units ) === false ) {\n\n\t\t\tgl.uniform1iv( this.addr, units );\n\t\t\tcopyArray( cache, units );\n\n\t\t}\n\n\t\tfor ( var i = 0; i !== n; ++ i ) {\n\n\t\t\trenderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] );\n\n\t\t}\n\n\t}\n\n\tfunction setValueT6a( gl, v, renderer ) {\n\n\t\tvar cache = this.cache;\n\t\tvar n = v.length;\n\n\t\tvar units = allocTexUnits( renderer, n );\n\n\t\tif ( arraysEqual( cache, units ) === false ) {\n\n\t\t\tgl.uniform1iv( this.addr, units );\n\t\t\tcopyArray( cache, units );\n\n\t\t}\n\n\t\tfor ( var i = 0; i !== n; ++ i ) {\n\n\t\t\trenderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );\n\n\t\t}\n\n\t}\n\n\t// Helper to pick the right setter for a pure (bottom-level) array\n\n\tfunction getPureArraySetter( type ) {\n\n\t\tswitch ( type ) {\n\n\t\t\tcase 0x1406: return setValue1fv; // FLOAT\n\t\t\tcase 0x8b50: return setValueV2a; // _VEC2\n\t\t\tcase 0x8b51: return setValueV3a; // _VEC3\n\t\t\tcase 0x8b52: return setValueV4a; // _VEC4\n\n\t\t\tcase 0x8b5a: return setValueM2a; // _MAT2\n\t\t\tcase 0x8b5b: return setValueM3a; // _MAT3\n\t\t\tcase 0x8b5c: return setValueM4a; // _MAT4\n\n\t\t\tcase 0x8b5e: return setValueT1a; // SAMPLER_2D\n\t\t\tcase 0x8b60: return setValueT6a; // SAMPLER_CUBE\n\n\t\t\tcase 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL\n\t\t\tcase 0x8b53: case 0x8b57: return setValue2iv; // _VEC2\n\t\t\tcase 0x8b54: case 0x8b58: return setValue3iv; // _VEC3\n\t\t\tcase 0x8b55: case 0x8b59: return setValue4iv; // _VEC4\n\n\t\t}\n\n\t}\n\n\t// --- Uniform Classes ---\n\n\tfunction SingleUniform( id, activeInfo, addr ) {\n\n\t\tthis.id = id;\n\t\tthis.addr = addr;\n\t\tthis.cache = [];\n\t\tthis.setValue = getSingularSetter( activeInfo.type );\n\n\t\t// this.path = activeInfo.name; // DEBUG\n\n\t}\n\n\tfunction PureArrayUniform( id, activeInfo, addr ) {\n\n\t\tthis.id = id;\n\t\tthis.addr = addr;\n\t\tthis.cache = [];\n\t\tthis.size = activeInfo.size;\n\t\tthis.setValue = getPureArraySetter( activeInfo.type );\n\n\t\t// this.path = activeInfo.name; // DEBUG\n\n\t}\n\n\tPureArrayUniform.prototype.updateCache = function ( data ) {\n\n\t\tvar cache = this.cache;\n\n\t\tif ( data instanceof Float32Array && cache.length !== data.length ) {\n\n\t\t\tthis.cache = new Float32Array( data.length );\n\n\t\t}\n\n\t\tcopyArray( cache, data );\n\n\t};\n\n\tfunction StructuredUniform( id ) {\n\n\t\tthis.id = id;\n\n\t\tUniformContainer.call( this ); // mix-in\n\n\t}\n\n\tStructuredUniform.prototype.setValue = function ( gl, value, renderer ) {\n\n\t\tvar seq = this.seq;\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ];\n\t\t\tu.setValue( gl, value[ u.id ], renderer );\n\n\t\t}\n\n\t};\n\n\t// --- Top-level ---\n\n\t// Parser - builds up the property tree from the path strings\n\n\tvar RePathPart = /([\\w\\d_]+)(\\])?(\\[|\\.)?/g;\n\n\t// extracts\n\t// \t- the identifier (member name or array index)\n\t// - followed by an optional right bracket (found when array index)\n\t// - followed by an optional left bracket or dot (type of subscript)\n\t//\n\t// Note: These portions can be read in a non-overlapping fashion and\n\t// allow straightforward parsing of the hierarchy that WebGL encodes\n\t// in the uniform names.\n\n\tfunction addUniform( container, uniformObject ) {\n\n\t\tcontainer.seq.push( uniformObject );\n\t\tcontainer.map[ uniformObject.id ] = uniformObject;\n\n\t}\n\n\tfunction parseUniform( activeInfo, addr, container ) {\n\n\t\tvar path = activeInfo.name,\n\t\t\tpathLength = path.length;\n\n\t\t// reset RegExp object, because of the early exit of a previous run\n\t\tRePathPart.lastIndex = 0;\n\n\t\twhile ( true ) {\n\n\t\t\tvar match = RePathPart.exec( path ),\n\t\t\t\tmatchEnd = RePathPart.lastIndex,\n\n\t\t\t\tid = match[ 1 ],\n\t\t\t\tidIsIndex = match[ 2 ] === ']',\n\t\t\t\tsubscript = match[ 3 ];\n\n\t\t\tif ( idIsIndex ) id = id | 0; // convert to integer\n\n\t\t\tif ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {\n\n\t\t\t\t// bare name or \"pure\" bottom-level array \"[0]\" suffix\n\n\t\t\t\taddUniform( container, subscript === undefined ?\n\t\t\t\t\tnew SingleUniform( id, activeInfo, addr ) :\n\t\t\t\t\tnew PureArrayUniform( id, activeInfo, addr ) );\n\n\t\t\t\tbreak;\n\n\t\t\t} else {\n\n\t\t\t\t// step into inner node / create it in case it doesn't exist\n\n\t\t\t\tvar map = container.map, next = map[ id ];\n\n\t\t\t\tif ( next === undefined ) {\n\n\t\t\t\t\tnext = new StructuredUniform( id );\n\t\t\t\t\taddUniform( container, next );\n\n\t\t\t\t}\n\n\t\t\t\tcontainer = next;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t// Root Container\n\n\tfunction WebGLUniforms( gl, program, renderer ) {\n\n\t\tUniformContainer.call( this );\n\n\t\tthis.renderer = renderer;\n\n\t\tvar n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );\n\n\t\tfor ( var i = 0; i < n; ++ i ) {\n\n\t\t\tvar info = gl.getActiveUniform( program, i ),\n\t\t\t\taddr = gl.getUniformLocation( program, info.name );\n\n\t\t\tparseUniform( info, addr, this );\n\n\t\t}\n\n\t}\n\n\tWebGLUniforms.prototype.setValue = function ( gl, name, value ) {\n\n\t\tvar u = this.map[ name ];\n\n\t\tif ( u !== undefined ) u.setValue( gl, value, this.renderer );\n\n\t};\n\n\tWebGLUniforms.prototype.setOptional = function ( gl, object, name ) {\n\n\t\tvar v = object[ name ];\n\n\t\tif ( v !== undefined ) this.setValue( gl, name, v );\n\n\t};\n\n\n\t// Static interface\n\n\tWebGLUniforms.upload = function ( gl, seq, values, renderer ) {\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ],\n\t\t\t\tv = values[ u.id ];\n\n\t\t\tif ( v.needsUpdate !== false ) {\n\n\t\t\t\t// note: always updating when .needsUpdate is undefined\n\t\t\t\tu.setValue( gl, v.value, renderer );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\tWebGLUniforms.seqWithValue = function ( seq, values ) {\n\n\t\tvar r = [];\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ];\n\t\t\tif ( u.id in values ) r.push( u );\n\n\t\t}\n\n\t\treturn r;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction addLineNumbers( string ) {\n\n\t\tvar lines = string.split( '\\n' );\n\n\t\tfor ( var i = 0; i < lines.length; i ++ ) {\n\n\t\t\tlines[ i ] = ( i + 1 ) + ': ' + lines[ i ];\n\n\t\t}\n\n\t\treturn lines.join( '\\n' );\n\n\t}\n\n\tfunction WebGLShader( gl, type, string ) {\n\n\t\tvar shader = gl.createShader( type );\n\n\t\tgl.shaderSource( shader, string );\n\t\tgl.compileShader( shader );\n\n\t\tif ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {\n\n\t\t\tconsole.error( 'THREE.WebGLShader: Shader couldn\\'t compile.' );\n\n\t\t}\n\n\t\tif ( gl.getShaderInfoLog( shader ) !== '' ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );\n\n\t\t}\n\n\t\t// --enable-privileged-webgl-extension\n\t\t// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );\n\n\t\treturn shader;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar programIdCount = 0;\n\n\tfunction getEncodingComponents( encoding ) {\n\n\t\tswitch ( encoding ) {\n\n\t\t\tcase LinearEncoding:\n\t\t\t\treturn [ 'Linear', '( value )' ];\n\t\t\tcase sRGBEncoding:\n\t\t\t\treturn [ 'sRGB', '( value )' ];\n\t\t\tcase RGBEEncoding:\n\t\t\t\treturn [ 'RGBE', '( value )' ];\n\t\t\tcase RGBM7Encoding:\n\t\t\t\treturn [ 'RGBM', '( value, 7.0 )' ];\n\t\t\tcase RGBM16Encoding:\n\t\t\t\treturn [ 'RGBM', '( value, 16.0 )' ];\n\t\t\tcase RGBDEncoding:\n\t\t\t\treturn [ 'RGBD', '( value, 256.0 )' ];\n\t\t\tcase GammaEncoding:\n\t\t\t\treturn [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ];\n\t\t\tdefault:\n\t\t\t\tthrow new Error( 'unsupported encoding: ' + encoding );\n\n\t\t}\n\n\t}\n\n\tfunction getTexelDecodingFunction( functionName, encoding ) {\n\n\t\tvar components = getEncodingComponents( encoding );\n\t\treturn 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }';\n\n\t}\n\n\tfunction getTexelEncodingFunction( functionName, encoding ) {\n\n\t\tvar components = getEncodingComponents( encoding );\n\t\treturn 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';\n\n\t}\n\n\tfunction getToneMappingFunction( functionName, toneMapping ) {\n\n\t\tvar toneMappingName;\n\n\t\tswitch ( toneMapping ) {\n\n\t\t\tcase LinearToneMapping:\n\t\t\t\ttoneMappingName = 'Linear';\n\t\t\t\tbreak;\n\n\t\t\tcase ReinhardToneMapping:\n\t\t\t\ttoneMappingName = 'Reinhard';\n\t\t\t\tbreak;\n\n\t\t\tcase Uncharted2ToneMapping:\n\t\t\t\ttoneMappingName = 'Uncharted2';\n\t\t\t\tbreak;\n\n\t\t\tcase CineonToneMapping:\n\t\t\t\ttoneMappingName = 'OptimizedCineon';\n\t\t\t\tbreak;\n\n\t\t\tdefault:\n\t\t\t\tthrow new Error( 'unsupported toneMapping: ' + toneMapping );\n\n\t\t}\n\n\t\treturn 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';\n\n\t}\n\n\tfunction generateExtensions( extensions, parameters, rendererExtensions ) {\n\n\t\textensions = extensions || {};\n\n\t\tvar chunks = [\n\t\t\t( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || ( parameters.normalMap && ! parameters.objectSpaceNormalMap ) || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',\n\t\t\t( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',\n\t\t\t( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',\n\t\t\t( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''\n\t\t];\n\n\t\treturn chunks.filter( filterEmptyLine ).join( '\\n' );\n\n\t}\n\n\tfunction generateDefines( defines ) {\n\n\t\tvar chunks = [];\n\n\t\tfor ( var name in defines ) {\n\n\t\t\tvar value = defines[ name ];\n\n\t\t\tif ( value === false ) continue;\n\n\t\t\tchunks.push( '#define ' + name + ' ' + value );\n\n\t\t}\n\n\t\treturn chunks.join( '\\n' );\n\n\t}\n\n\tfunction fetchAttributeLocations( gl, program ) {\n\n\t\tvar attributes = {};\n\n\t\tvar n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );\n\n\t\tfor ( var i = 0; i < n; i ++ ) {\n\n\t\t\tvar info = gl.getActiveAttrib( program, i );\n\t\t\tvar name = info.name;\n\n\t\t\t// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );\n\n\t\t\tattributes[ name ] = gl.getAttribLocation( program, name );\n\n\t\t}\n\n\t\treturn attributes;\n\n\t}\n\n\tfunction filterEmptyLine( string ) {\n\n\t\treturn string !== '';\n\n\t}\n\n\tfunction replaceLightNums( string, parameters ) {\n\n\t\treturn string\n\t\t\t.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )\n\t\t\t.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )\n\t\t\t.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )\n\t\t\t.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )\n\t\t\t.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );\n\n\t}\n\n\tfunction replaceClippingPlaneNums( string, parameters ) {\n\n\t\treturn string\n\t\t\t.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )\n\t\t\t.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );\n\n\t}\n\n\tfunction parseIncludes( string ) {\n\n\t\tvar pattern = /^[ \\t]*#include +<([\\w\\d./]+)>/gm;\n\n\t\tfunction replace( match, include ) {\n\n\t\t\tvar replace = ShaderChunk[ include ];\n\n\t\t\tif ( replace === undefined ) {\n\n\t\t\t\tthrow new Error( 'Can not resolve #include <' + include + '>' );\n\n\t\t\t}\n\n\t\t\treturn parseIncludes( replace );\n\n\t\t}\n\n\t\treturn string.replace( pattern, replace );\n\n\t}\n\n\tfunction unrollLoops( string ) {\n\n\t\tvar pattern = /#pragma unroll_loop[\\s]+?for \\( int i \\= (\\d+)\\; i < (\\d+)\\; i \\+\\+ \\) \\{([\\s\\S]+?)(?=\\})\\}/g;\n\n\t\tfunction replace( match, start, end, snippet ) {\n\n\t\t\tvar unroll = '';\n\n\t\t\tfor ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {\n\n\t\t\t\tunroll += snippet.replace( /\\[ i \\]/g, '[ ' + i + ' ]' );\n\n\t\t\t}\n\n\t\t\treturn unroll;\n\n\t\t}\n\n\t\treturn string.replace( pattern, replace );\n\n\t}\n\n\tfunction WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities ) {\n\n\t\tvar gl = renderer.context;\n\n\t\tvar defines = material.defines;\n\n\t\tvar vertexShader = shader.vertexShader;\n\t\tvar fragmentShader = shader.fragmentShader;\n\n\t\tvar shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';\n\n\t\tif ( parameters.shadowMapType === PCFShadowMap ) {\n\n\t\t\tshadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';\n\n\t\t} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {\n\n\t\t\tshadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';\n\n\t\t}\n\n\t\tvar envMapTypeDefine = 'ENVMAP_TYPE_CUBE';\n\t\tvar envMapModeDefine = 'ENVMAP_MODE_REFLECTION';\n\t\tvar envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';\n\n\t\tif ( parameters.envMap ) {\n\n\t\t\tswitch ( material.envMap.mapping ) {\n\n\t\t\t\tcase CubeReflectionMapping:\n\t\t\t\tcase CubeRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_CUBE';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase CubeUVReflectionMapping:\n\t\t\t\tcase CubeUVRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase EquirectangularReflectionMapping:\n\t\t\t\tcase EquirectangularRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase SphericalReflectionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_SPHERE';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tswitch ( material.envMap.mapping ) {\n\n\t\t\t\tcase CubeRefractionMapping:\n\t\t\t\tcase EquirectangularRefractionMapping:\n\t\t\t\t\tenvMapModeDefine = 'ENVMAP_MODE_REFRACTION';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tswitch ( material.combine ) {\n\n\t\t\t\tcase MultiplyOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase MixOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_MIX';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase AddOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_ADD';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;\n\n\t\t// console.log( 'building new program ' );\n\n\t\t//\n\n\t\tvar customExtensions = capabilities.isWebGL2 ? '' : generateExtensions( material.extensions, parameters, extensions );\n\n\t\tvar customDefines = generateDefines( defines );\n\n\t\t//\n\n\t\tvar program = gl.createProgram();\n\n\t\tvar prefixVertex, prefixFragment;\n\n\t\tif ( material.isRawShaderMaterial ) {\n\n\t\t\tprefixVertex = [\n\n\t\t\t\tcustomDefines\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tif ( prefixVertex.length > 0 ) {\n\n\t\t\t\tprefixVertex += '\\n';\n\n\t\t\t}\n\n\t\t\tprefixFragment = [\n\n\t\t\t\tcustomExtensions,\n\t\t\t\tcustomDefines\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tif ( prefixFragment.length > 0 ) {\n\n\t\t\t\tprefixFragment += '\\n';\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tprefixVertex = [\n\n\t\t\t\t'precision ' + parameters.precision + ' float;',\n\t\t\t\t'precision ' + parameters.precision + ' int;',\n\n\t\t\t\t'#define SHADER_NAME ' + shader.name,\n\n\t\t\t\tcustomDefines,\n\n\t\t\t\tparameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',\n\n\t\t\t\t'#define GAMMA_FACTOR ' + gammaFactorDefine,\n\n\t\t\t\t'#define MAX_BONES ' + parameters.maxBones,\n\t\t\t\t( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',\n\t\t\t\t( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',\n\n\t\t\t\tparameters.map ? '#define USE_MAP' : '',\n\t\t\t\tparameters.envMap ? '#define USE_ENVMAP' : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapModeDefine : '',\n\t\t\t\tparameters.lightMap ? '#define USE_LIGHTMAP' : '',\n\t\t\t\tparameters.aoMap ? '#define USE_AOMAP' : '',\n\t\t\t\tparameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',\n\t\t\t\tparameters.bumpMap ? '#define USE_BUMPMAP' : '',\n\t\t\t\tparameters.normalMap ? '#define USE_NORMALMAP' : '',\n\t\t\t\t( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',\n\t\t\t\tparameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',\n\t\t\t\tparameters.specularMap ? '#define USE_SPECULARMAP' : '',\n\t\t\t\tparameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',\n\t\t\t\tparameters.metalnessMap ? '#define USE_METALNESSMAP' : '',\n\t\t\t\tparameters.alphaMap ? '#define USE_ALPHAMAP' : '',\n\t\t\t\tparameters.vertexColors ? '#define USE_COLOR' : '',\n\n\t\t\t\tparameters.flatShading ? '#define FLAT_SHADED' : '',\n\n\t\t\t\tparameters.skinning ? '#define USE_SKINNING' : '',\n\t\t\t\tparameters.useVertexTexture ? '#define BONE_TEXTURE' : '',\n\n\t\t\t\tparameters.morphTargets ? '#define USE_MORPHTARGETS' : '',\n\t\t\t\tparameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',\n\t\t\t\tparameters.doubleSided ? '#define DOUBLE_SIDED' : '',\n\t\t\t\tparameters.flipSided ? '#define FLIP_SIDED' : '',\n\n\t\t\t\tparameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',\n\t\t\t\tparameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',\n\n\t\t\t\tparameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',\n\n\t\t\t\tparameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',\n\t\t\t\tparameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',\n\n\t\t\t\t'uniform mat4 modelMatrix;',\n\t\t\t\t'uniform mat4 modelViewMatrix;',\n\t\t\t\t'uniform mat4 projectionMatrix;',\n\t\t\t\t'uniform mat4 viewMatrix;',\n\t\t\t\t'uniform mat3 normalMatrix;',\n\t\t\t\t'uniform vec3 cameraPosition;',\n\n\t\t\t\t'attribute vec3 position;',\n\t\t\t\t'attribute vec3 normal;',\n\t\t\t\t'attribute vec2 uv;',\n\n\t\t\t\t'#ifdef USE_COLOR',\n\n\t\t\t\t'\tattribute vec3 color;',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'#ifdef USE_MORPHTARGETS',\n\n\t\t\t\t'\tattribute vec3 morphTarget0;',\n\t\t\t\t'\tattribute vec3 morphTarget1;',\n\t\t\t\t'\tattribute vec3 morphTarget2;',\n\t\t\t\t'\tattribute vec3 morphTarget3;',\n\n\t\t\t\t'\t#ifdef USE_MORPHNORMALS',\n\n\t\t\t\t'\t\tattribute vec3 morphNormal0;',\n\t\t\t\t'\t\tattribute vec3 morphNormal1;',\n\t\t\t\t'\t\tattribute vec3 morphNormal2;',\n\t\t\t\t'\t\tattribute vec3 morphNormal3;',\n\n\t\t\t\t'\t#else',\n\n\t\t\t\t'\t\tattribute vec3 morphTarget4;',\n\t\t\t\t'\t\tattribute vec3 morphTarget5;',\n\t\t\t\t'\t\tattribute vec3 morphTarget6;',\n\t\t\t\t'\t\tattribute vec3 morphTarget7;',\n\n\t\t\t\t'\t#endif',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'#ifdef USE_SKINNING',\n\n\t\t\t\t'\tattribute vec4 skinIndex;',\n\t\t\t\t'\tattribute vec4 skinWeight;',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tprefixFragment = [\n\n\t\t\t\tcustomExtensions,\n\n\t\t\t\t'precision ' + parameters.precision + ' float;',\n\t\t\t\t'precision ' + parameters.precision + ' int;',\n\n\t\t\t\t'#define SHADER_NAME ' + shader.name,\n\n\t\t\t\tcustomDefines,\n\n\t\t\t\tparameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + ( parameters.alphaTest % 1 ? '' : '.0' ) : '', // add '.0' if integer\n\n\t\t\t\t'#define GAMMA_FACTOR ' + gammaFactorDefine,\n\n\t\t\t\t( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',\n\t\t\t\t( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',\n\n\t\t\t\tparameters.map ? '#define USE_MAP' : '',\n\t\t\t\tparameters.envMap ? '#define USE_ENVMAP' : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapTypeDefine : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapModeDefine : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapBlendingDefine : '',\n\t\t\t\tparameters.lightMap ? '#define USE_LIGHTMAP' : '',\n\t\t\t\tparameters.aoMap ? '#define USE_AOMAP' : '',\n\t\t\t\tparameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',\n\t\t\t\tparameters.bumpMap ? '#define USE_BUMPMAP' : '',\n\t\t\t\tparameters.normalMap ? '#define USE_NORMALMAP' : '',\n\t\t\t\t( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',\n\t\t\t\tparameters.specularMap ? '#define USE_SPECULARMAP' : '',\n\t\t\t\tparameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',\n\t\t\t\tparameters.metalnessMap ? '#define USE_METALNESSMAP' : '',\n\t\t\t\tparameters.alphaMap ? '#define USE_ALPHAMAP' : '',\n\t\t\t\tparameters.vertexColors ? '#define USE_COLOR' : '',\n\n\t\t\t\tparameters.gradientMap ? '#define USE_GRADIENTMAP' : '',\n\n\t\t\t\tparameters.flatShading ? '#define FLAT_SHADED' : '',\n\n\t\t\t\tparameters.doubleSided ? '#define DOUBLE_SIDED' : '',\n\t\t\t\tparameters.flipSided ? '#define FLIP_SIDED' : '',\n\n\t\t\t\tparameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',\n\t\t\t\tparameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',\n\n\t\t\t\tparameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',\n\n\t\t\t\tparameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',\n\n\t\t\t\tparameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',\n\t\t\t\tparameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',\n\n\t\t\t\tparameters.envMap && ( capabilities.isWebGL2 || extensions.get( 'EXT_shader_texture_lod' ) ) ? '#define TEXTURE_LOD_EXT' : '',\n\n\t\t\t\t'uniform mat4 viewMatrix;',\n\t\t\t\t'uniform vec3 cameraPosition;',\n\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',\n\n\t\t\t\tparameters.dithering ? '#define DITHERING' : '',\n\n\t\t\t\t( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below\n\t\t\t\tparameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',\n\t\t\t\tparameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',\n\t\t\t\tparameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',\n\t\t\t\tparameters.outputEncoding ? getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ) : '',\n\n\t\t\t\tparameters.depthPacking ? '#define DEPTH_PACKING ' + material.depthPacking : '',\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t}\n\n\t\tvertexShader = parseIncludes( vertexShader );\n\t\tvertexShader = replaceLightNums( vertexShader, parameters );\n\t\tvertexShader = replaceClippingPlaneNums( vertexShader, parameters );\n\n\t\tfragmentShader = parseIncludes( fragmentShader );\n\t\tfragmentShader = replaceLightNums( fragmentShader, parameters );\n\t\tfragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );\n\n\t\tvertexShader = unrollLoops( vertexShader );\n\t\tfragmentShader = unrollLoops( fragmentShader );\n\n\t\tif ( capabilities.isWebGL2 && ! material.isRawShaderMaterial ) {\n\n\t\t\tvar isGLSL3ShaderMaterial = false;\n\n\t\t\tvar versionRegex = /^\\s*#version\\s+300\\s+es\\s*\\n/;\n\n\t\t\tif ( material.isShaderMaterial &&\n\t\t\t\tvertexShader.match( versionRegex ) !== null &&\n\t\t\t\tfragmentShader.match( versionRegex ) !== null ) {\n\n\t\t\t\tisGLSL3ShaderMaterial = true;\n\n\t\t\t\tvertexShader = vertexShader.replace( versionRegex, '' );\n\t\t\t\tfragmentShader = fragmentShader.replace( versionRegex, '' );\n\n\t\t\t}\n\n\t\t\t// GLSL 3.0 conversion\n\t\t\tprefixVertex = [\n\t\t\t\t'#version 300 es\\n',\n\t\t\t\t'#define attribute in',\n\t\t\t\t'#define varying out',\n\t\t\t\t'#define texture2D texture'\n\t\t\t].join( '\\n' ) + '\\n' + prefixVertex;\n\n\t\t\tprefixFragment = [\n\t\t\t\t'#version 300 es\\n',\n\t\t\t\t'#define varying in',\n\t\t\t\tisGLSL3ShaderMaterial ? '' : 'out highp vec4 pc_fragColor;',\n\t\t\t\tisGLSL3ShaderMaterial ? '' : '#define gl_FragColor pc_fragColor',\n\t\t\t\t'#define gl_FragDepthEXT gl_FragDepth',\n\t\t\t\t'#define texture2D texture',\n\t\t\t\t'#define textureCube texture',\n\t\t\t\t'#define texture2DProj textureProj',\n\t\t\t\t'#define texture2DLodEXT textureLod',\n\t\t\t\t'#define texture2DProjLodEXT textureProjLod',\n\t\t\t\t'#define textureCubeLodEXT textureLod',\n\t\t\t\t'#define texture2DGradEXT textureGrad',\n\t\t\t\t'#define texture2DProjGradEXT textureProjGrad',\n\t\t\t\t'#define textureCubeGradEXT textureGrad'\n\t\t\t].join( '\\n' ) + '\\n' + prefixFragment;\n\n\t\t}\n\n\t\tvar vertexGlsl = prefixVertex + vertexShader;\n\t\tvar fragmentGlsl = prefixFragment + fragmentShader;\n\n\t\t// console.log( '*VERTEX*', vertexGlsl );\n\t\t// console.log( '*FRAGMENT*', fragmentGlsl );\n\n\t\tvar glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );\n\t\tvar glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );\n\n\t\tgl.attachShader( program, glVertexShader );\n\t\tgl.attachShader( program, glFragmentShader );\n\n\t\t// Force a particular attribute to index 0.\n\n\t\tif ( material.index0AttributeName !== undefined ) {\n\n\t\t\tgl.bindAttribLocation( program, 0, material.index0AttributeName );\n\n\t\t} else if ( parameters.morphTargets === true ) {\n\n\t\t\t// programs with morphTargets displace position out of attribute 0\n\t\t\tgl.bindAttribLocation( program, 0, 'position' );\n\n\t\t}\n\n\t\tgl.linkProgram( program );\n\n\t\tvar programLog = gl.getProgramInfoLog( program ).trim();\n\t\tvar vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();\n\t\tvar fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();\n\n\t\tvar runnable = true;\n\t\tvar haveDiagnostics = true;\n\n\t\t// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );\n\t\t// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );\n\n\t\tif ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {\n\n\t\t\trunnable = false;\n\n\t\t\tconsole.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );\n\n\t\t} else if ( programLog !== '' ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );\n\n\t\t} else if ( vertexLog === '' || fragmentLog === '' ) {\n\n\t\t\thaveDiagnostics = false;\n\n\t\t}\n\n\t\tif ( haveDiagnostics ) {\n\n\t\t\tthis.diagnostics = {\n\n\t\t\t\trunnable: runnable,\n\t\t\t\tmaterial: material,\n\n\t\t\t\tprogramLog: programLog,\n\n\t\t\t\tvertexShader: {\n\n\t\t\t\t\tlog: vertexLog,\n\t\t\t\t\tprefix: prefixVertex\n\n\t\t\t\t},\n\n\t\t\t\tfragmentShader: {\n\n\t\t\t\t\tlog: fragmentLog,\n\t\t\t\t\tprefix: prefixFragment\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\t// clean up\n\n\t\tgl.deleteShader( glVertexShader );\n\t\tgl.deleteShader( glFragmentShader );\n\n\t\t// set up caching for uniform locations\n\n\t\tvar cachedUniforms;\n\n\t\tthis.getUniforms = function () {\n\n\t\t\tif ( cachedUniforms === undefined ) {\n\n\t\t\t\tcachedUniforms = new WebGLUniforms( gl, program, renderer );\n\n\t\t\t}\n\n\t\t\treturn cachedUniforms;\n\n\t\t};\n\n\t\t// set up caching for attribute locations\n\n\t\tvar cachedAttributes;\n\n\t\tthis.getAttributes = function () {\n\n\t\t\tif ( cachedAttributes === undefined ) {\n\n\t\t\t\tcachedAttributes = fetchAttributeLocations( gl, program );\n\n\t\t\t}\n\n\t\t\treturn cachedAttributes;\n\n\t\t};\n\n\t\t// free resource\n\n\t\tthis.destroy = function () {\n\n\t\t\tgl.deleteProgram( program );\n\t\t\tthis.program = undefined;\n\n\t\t};\n\n\t\t// DEPRECATED\n\n\t\tObject.defineProperties( this, {\n\n\t\t\tuniforms: {\n\t\t\t\tget: function () {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );\n\t\t\t\t\treturn this.getUniforms();\n\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tattributes: {\n\t\t\t\tget: function () {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );\n\t\t\t\t\treturn this.getAttributes();\n\n\t\t\t\t}\n\t\t\t}\n\n\t\t} );\n\n\n\t\t//\n\n\t\tthis.name = shader.name;\n\t\tthis.id = programIdCount ++;\n\t\tthis.code = code;\n\t\tthis.usedTimes = 1;\n\t\tthis.program = program;\n\t\tthis.vertexShader = glVertexShader;\n\t\tthis.fragmentShader = glFragmentShader;\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLPrograms( renderer, extensions, capabilities ) {\n\n\t\tvar programs = [];\n\n\t\tvar shaderIDs = {\n\t\t\tMeshDepthMaterial: 'depth',\n\t\t\tMeshDistanceMaterial: 'distanceRGBA',\n\t\t\tMeshNormalMaterial: 'normal',\n\t\t\tMeshBasicMaterial: 'basic',\n\t\t\tMeshLambertMaterial: 'lambert',\n\t\t\tMeshPhongMaterial: 'phong',\n\t\t\tMeshToonMaterial: 'phong',\n\t\t\tMeshStandardMaterial: 'physical',\n\t\t\tMeshPhysicalMaterial: 'physical',\n\t\t\tLineBasicMaterial: 'basic',\n\t\t\tLineDashedMaterial: 'dashed',\n\t\t\tPointsMaterial: 'points',\n\t\t\tShadowMaterial: 'shadow',\n\t\t\tSpriteMaterial: 'sprite'\n\t\t};\n\n\t\tvar parameterNames = [\n\t\t\t\"precision\", \"supportsVertexTextures\", \"map\", \"mapEncoding\", \"envMap\", \"envMapMode\", \"envMapEncoding\",\n\t\t\t\"lightMap\", \"aoMap\", \"emissiveMap\", \"emissiveMapEncoding\", \"bumpMap\", \"normalMap\", \"objectSpaceNormalMap\", \"displacementMap\", \"specularMap\",\n\t\t\t\"roughnessMap\", \"metalnessMap\", \"gradientMap\",\n\t\t\t\"alphaMap\", \"combine\", \"vertexColors\", \"fog\", \"useFog\", \"fogExp\",\n\t\t\t\"flatShading\", \"sizeAttenuation\", \"logarithmicDepthBuffer\", \"skinning\",\n\t\t\t\"maxBones\", \"useVertexTexture\", \"morphTargets\", \"morphNormals\",\n\t\t\t\"maxMorphTargets\", \"maxMorphNormals\", \"premultipliedAlpha\",\n\t\t\t\"numDirLights\", \"numPointLights\", \"numSpotLights\", \"numHemiLights\", \"numRectAreaLights\",\n\t\t\t\"shadowMapEnabled\", \"shadowMapType\", \"toneMapping\", 'physicallyCorrectLights',\n\t\t\t\"alphaTest\", \"doubleSided\", \"flipSided\", \"numClippingPlanes\", \"numClipIntersection\", \"depthPacking\", \"dithering\"\n\t\t];\n\n\n\t\tfunction allocateBones( object ) {\n\n\t\t\tvar skeleton = object.skeleton;\n\t\t\tvar bones = skeleton.bones;\n\n\t\t\tif ( capabilities.floatVertexTextures ) {\n\n\t\t\t\treturn 1024;\n\n\t\t\t} else {\n\n\t\t\t\t// default for when object is not specified\n\t\t\t\t// ( for example when prebuilding shader to be used with multiple objects )\n\t\t\t\t//\n\t\t\t\t// - leave some extra space for other uniforms\n\t\t\t\t// - limit here is ANGLE's 254 max uniform vectors\n\t\t\t\t// (up to 54 should be safe)\n\n\t\t\t\tvar nVertexUniforms = capabilities.maxVertexUniforms;\n\t\t\t\tvar nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );\n\n\t\t\t\tvar maxBones = Math.min( nVertexMatrices, bones.length );\n\n\t\t\t\tif ( maxBones < bones.length ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );\n\t\t\t\t\treturn 0;\n\n\t\t\t\t}\n\n\t\t\t\treturn maxBones;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getTextureEncodingFromMap( map, gammaOverrideLinear ) {\n\n\t\t\tvar encoding;\n\n\t\t\tif ( ! map ) {\n\n\t\t\t\tencoding = LinearEncoding;\n\n\t\t\t} else if ( map.isTexture ) {\n\n\t\t\t\tencoding = map.encoding;\n\n\t\t\t} else if ( map.isWebGLRenderTarget ) {\n\n\t\t\t\tconsole.warn( \"THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead.\" );\n\t\t\t\tencoding = map.texture.encoding;\n\n\t\t\t}\n\n\t\t\t// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.\n\t\t\tif ( encoding === LinearEncoding && gammaOverrideLinear ) {\n\n\t\t\t\tencoding = GammaEncoding;\n\n\t\t\t}\n\n\t\t\treturn encoding;\n\n\t\t}\n\n\t\tthis.getParameters = function ( material, lights, shadows, fog, nClipPlanes, nClipIntersection, object ) {\n\n\t\t\tvar shaderID = shaderIDs[ material.type ];\n\n\t\t\t// heuristics to create shader parameters according to lights in the scene\n\t\t\t// (not to blow over maxLights budget)\n\n\t\t\tvar maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;\n\t\t\tvar precision = capabilities.precision;\n\n\t\t\tif ( material.precision !== null ) {\n\n\t\t\t\tprecision = capabilities.getMaxPrecision( material.precision );\n\n\t\t\t\tif ( precision !== material.precision ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar currentRenderTarget = renderer.getRenderTarget();\n\n\t\t\tvar parameters = {\n\n\t\t\t\tshaderID: shaderID,\n\n\t\t\t\tprecision: precision,\n\t\t\t\tsupportsVertexTextures: capabilities.vertexTextures,\n\t\t\t\toutputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),\n\t\t\t\tmap: !! material.map,\n\t\t\t\tmapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),\n\t\t\t\tenvMap: !! material.envMap,\n\t\t\t\tenvMapMode: material.envMap && material.envMap.mapping,\n\t\t\t\tenvMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),\n\t\t\t\tenvMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),\n\t\t\t\tlightMap: !! material.lightMap,\n\t\t\t\taoMap: !! material.aoMap,\n\t\t\t\temissiveMap: !! material.emissiveMap,\n\t\t\t\temissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),\n\t\t\t\tbumpMap: !! material.bumpMap,\n\t\t\t\tnormalMap: !! material.normalMap,\n\t\t\t\tobjectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,\n\t\t\t\tdisplacementMap: !! material.displacementMap,\n\t\t\t\troughnessMap: !! material.roughnessMap,\n\t\t\t\tmetalnessMap: !! material.metalnessMap,\n\t\t\t\tspecularMap: !! material.specularMap,\n\t\t\t\talphaMap: !! material.alphaMap,\n\n\t\t\t\tgradientMap: !! material.gradientMap,\n\n\t\t\t\tcombine: material.combine,\n\n\t\t\t\tvertexColors: material.vertexColors,\n\n\t\t\t\tfog: !! fog,\n\t\t\t\tuseFog: material.fog,\n\t\t\t\tfogExp: ( fog && fog.isFogExp2 ),\n\n\t\t\t\tflatShading: material.flatShading,\n\n\t\t\t\tsizeAttenuation: material.sizeAttenuation,\n\t\t\t\tlogarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,\n\n\t\t\t\tskinning: material.skinning && maxBones > 0,\n\t\t\t\tmaxBones: maxBones,\n\t\t\t\tuseVertexTexture: capabilities.floatVertexTextures,\n\n\t\t\t\tmorphTargets: material.morphTargets,\n\t\t\t\tmorphNormals: material.morphNormals,\n\t\t\t\tmaxMorphTargets: renderer.maxMorphTargets,\n\t\t\t\tmaxMorphNormals: renderer.maxMorphNormals,\n\n\t\t\t\tnumDirLights: lights.directional.length,\n\t\t\t\tnumPointLights: lights.point.length,\n\t\t\t\tnumSpotLights: lights.spot.length,\n\t\t\t\tnumRectAreaLights: lights.rectArea.length,\n\t\t\t\tnumHemiLights: lights.hemi.length,\n\n\t\t\t\tnumClippingPlanes: nClipPlanes,\n\t\t\t\tnumClipIntersection: nClipIntersection,\n\n\t\t\t\tdithering: material.dithering,\n\n\t\t\t\tshadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && shadows.length > 0,\n\t\t\t\tshadowMapType: renderer.shadowMap.type,\n\n\t\t\t\ttoneMapping: renderer.toneMapping,\n\t\t\t\tphysicallyCorrectLights: renderer.physicallyCorrectLights,\n\n\t\t\t\tpremultipliedAlpha: material.premultipliedAlpha,\n\n\t\t\t\talphaTest: material.alphaTest,\n\t\t\t\tdoubleSided: material.side === DoubleSide,\n\t\t\t\tflipSided: material.side === BackSide,\n\n\t\t\t\tdepthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false\n\n\t\t\t};\n\n\t\t\treturn parameters;\n\n\t\t};\n\n\t\tthis.getProgramCode = function ( material, parameters ) {\n\n\t\t\tvar array = [];\n\n\t\t\tif ( parameters.shaderID ) {\n\n\t\t\t\tarray.push( parameters.shaderID );\n\n\t\t\t} else {\n\n\t\t\t\tarray.push( material.fragmentShader );\n\t\t\t\tarray.push( material.vertexShader );\n\n\t\t\t}\n\n\t\t\tif ( material.defines !== undefined ) {\n\n\t\t\t\tfor ( var name in material.defines ) {\n\n\t\t\t\t\tarray.push( name );\n\t\t\t\t\tarray.push( material.defines[ name ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < parameterNames.length; i ++ ) {\n\n\t\t\t\tarray.push( parameters[ parameterNames[ i ] ] );\n\n\t\t\t}\n\n\t\t\tarray.push( material.onBeforeCompile.toString() );\n\n\t\t\tarray.push( renderer.gammaOutput );\n\n\t\t\treturn array.join();\n\n\t\t};\n\n\t\tthis.acquireProgram = function ( material, shader, parameters, code ) {\n\n\t\t\tvar program;\n\n\t\t\t// Check if code has been already compiled\n\t\t\tfor ( var p = 0, pl = programs.length; p < pl; p ++ ) {\n\n\t\t\t\tvar programInfo = programs[ p ];\n\n\t\t\t\tif ( programInfo.code === code ) {\n\n\t\t\t\t\tprogram = programInfo;\n\t\t\t\t\t++ program.usedTimes;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\tprogram = new WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities );\n\t\t\t\tprograms.push( program );\n\n\t\t\t}\n\n\t\t\treturn program;\n\n\t\t};\n\n\t\tthis.releaseProgram = function ( program ) {\n\n\t\t\tif ( -- program.usedTimes === 0 ) {\n\n\t\t\t\t// Remove from unordered set\n\t\t\t\tvar i = programs.indexOf( program );\n\t\t\t\tprograms[ i ] = programs[ programs.length - 1 ];\n\t\t\t\tprograms.pop();\n\n\t\t\t\t// Free WebGL resources\n\t\t\t\tprogram.destroy();\n\n\t\t\t}\n\n\t\t};\n\n\t\t// Exposed for resource monitoring & error feedback via renderer.info:\n\t\tthis.programs = programs;\n\n\t}\n\n\t/**\n\t * @author fordacious / fordacious.github.io\n\t */\n\n\tfunction WebGLProperties() {\n\n\t\tvar properties = new WeakMap();\n\n\t\tfunction get( object ) {\n\n\t\t\tvar map = properties.get( object );\n\n\t\t\tif ( map === undefined ) {\n\n\t\t\t\tmap = {};\n\t\t\t\tproperties.set( object, map );\n\n\t\t\t}\n\n\t\t\treturn map;\n\n\t\t}\n\n\t\tfunction remove( object ) {\n\n\t\t\tproperties.delete( object );\n\n\t\t}\n\n\t\tfunction update( object, key, value ) {\n\n\t\t\tproperties.get( object )[ key ] = value;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\tproperties = new WeakMap();\n\n\t\t}\n\n\t\treturn {\n\t\t\tget: get,\n\t\t\tremove: remove,\n\t\t\tupdate: update,\n\t\t\tdispose: dispose\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction painterSortStable( a, b ) {\n\n\t\tif ( a.renderOrder !== b.renderOrder ) {\n\n\t\t\treturn a.renderOrder - b.renderOrder;\n\n\t\t} else if ( a.program && b.program && a.program !== b.program ) {\n\n\t\t\treturn a.program.id - b.program.id;\n\n\t\t} else if ( a.material.id !== b.material.id ) {\n\n\t\t\treturn a.material.id - b.material.id;\n\n\t\t} else if ( a.z !== b.z ) {\n\n\t\t\treturn a.z - b.z;\n\n\t\t} else {\n\n\t\t\treturn a.id - b.id;\n\n\t\t}\n\n\t}\n\n\tfunction reversePainterSortStable( a, b ) {\n\n\t\tif ( a.renderOrder !== b.renderOrder ) {\n\n\t\t\treturn a.renderOrder - b.renderOrder;\n\n\t\t} if ( a.z !== b.z ) {\n\n\t\t\treturn b.z - a.z;\n\n\t\t} else {\n\n\t\t\treturn a.id - b.id;\n\n\t\t}\n\n\t}\n\n\n\tfunction WebGLRenderList() {\n\n\t\tvar renderItems = [];\n\t\tvar renderItemsIndex = 0;\n\n\t\tvar opaque = [];\n\t\tvar transparent = [];\n\n\t\tfunction init() {\n\n\t\t\trenderItemsIndex = 0;\n\n\t\t\topaque.length = 0;\n\t\t\ttransparent.length = 0;\n\n\t\t}\n\n\t\tfunction push( object, geometry, material, z, group ) {\n\n\t\t\tvar renderItem = renderItems[ renderItemsIndex ];\n\n\t\t\tif ( renderItem === undefined ) {\n\n\t\t\t\trenderItem = {\n\t\t\t\t\tid: object.id,\n\t\t\t\t\tobject: object,\n\t\t\t\t\tgeometry: geometry,\n\t\t\t\t\tmaterial: material,\n\t\t\t\t\tprogram: material.program,\n\t\t\t\t\trenderOrder: object.renderOrder,\n\t\t\t\t\tz: z,\n\t\t\t\t\tgroup: group\n\t\t\t\t};\n\n\t\t\t\trenderItems[ renderItemsIndex ] = renderItem;\n\n\t\t\t} else {\n\n\t\t\t\trenderItem.id = object.id;\n\t\t\t\trenderItem.object = object;\n\t\t\t\trenderItem.geometry = geometry;\n\t\t\t\trenderItem.material = material;\n\t\t\t\trenderItem.program = material.program;\n\t\t\t\trenderItem.renderOrder = object.renderOrder;\n\t\t\t\trenderItem.z = z;\n\t\t\t\trenderItem.group = group;\n\n\t\t\t}\n\n\n\t\t\t( material.transparent === true ? transparent : opaque ).push( renderItem );\n\n\t\t\trenderItemsIndex ++;\n\n\t\t}\n\n\t\tfunction sort() {\n\n\t\t\tif ( opaque.length > 1 ) opaque.sort( painterSortStable );\n\t\t\tif ( transparent.length > 1 ) transparent.sort( reversePainterSortStable );\n\n\t\t}\n\n\t\treturn {\n\t\t\topaque: opaque,\n\t\t\ttransparent: transparent,\n\n\t\t\tinit: init,\n\t\t\tpush: push,\n\n\t\t\tsort: sort\n\t\t};\n\n\t}\n\n\tfunction WebGLRenderLists() {\n\n\t\tvar lists = {};\n\n\t\tfunction get( scene, camera ) {\n\n\t\t\tvar hash = scene.id + ',' + camera.id;\n\t\t\tvar list = lists[ hash ];\n\n\t\t\tif ( list === undefined ) {\n\n\t\t\t\t// console.log( 'THREE.WebGLRenderLists:', hash );\n\n\t\t\t\tlist = new WebGLRenderList();\n\t\t\t\tlists[ hash ] = list;\n\n\t\t\t}\n\n\t\t\treturn list;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\tlists = {};\n\n\t\t}\n\n\t\treturn {\n\t\t\tget: get,\n\t\t\tdispose: dispose\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction UniformsCache() {\n\n\t\tvar lights = {};\n\n\t\treturn {\n\n\t\t\tget: function ( light ) {\n\n\t\t\t\tif ( lights[ light.id ] !== undefined ) {\n\n\t\t\t\t\treturn lights[ light.id ];\n\n\t\t\t\t}\n\n\t\t\t\tvar uniforms;\n\n\t\t\t\tswitch ( light.type ) {\n\n\t\t\t\t\tcase 'DirectionalLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'SpotLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tdistance: 0,\n\t\t\t\t\t\t\tconeCos: 0,\n\t\t\t\t\t\t\tpenumbraCos: 0,\n\t\t\t\t\t\t\tdecay: 0,\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'PointLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tdistance: 0,\n\t\t\t\t\t\t\tdecay: 0,\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2(),\n\t\t\t\t\t\t\tshadowCameraNear: 1,\n\t\t\t\t\t\t\tshadowCameraFar: 1000\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'HemisphereLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tskyColor: new Color(),\n\t\t\t\t\t\t\tgroundColor: new Color()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'RectAreaLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\thalfWidth: new Vector3(),\n\t\t\t\t\t\t\thalfHeight: new Vector3()\n\t\t\t\t\t\t\t// TODO (abelnation): set RectAreaLight shadow uniforms\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tlights[ light.id ] = uniforms;\n\n\t\t\t\treturn uniforms;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\tvar count = 0;\n\n\tfunction WebGLLights() {\n\n\t\tvar cache = new UniformsCache();\n\n\t\tvar state = {\n\n\t\t\tid: count ++,\n\n\t\t\thash: {\n\t\t\t\tstateID: - 1,\n\t\t\t\tdirectionalLength: - 1,\n\t\t\t\tpointLength: - 1,\n\t\t\t\tspotLength: - 1,\n\t\t\t\trectAreaLength: - 1,\n\t\t\t\themiLength: - 1,\n\t\t\t\tshadowsLength: - 1\n\t\t\t},\n\n\t\t\tambient: [ 0, 0, 0 ],\n\t\t\tdirectional: [],\n\t\t\tdirectionalShadowMap: [],\n\t\t\tdirectionalShadowMatrix: [],\n\t\t\tspot: [],\n\t\t\tspotShadowMap: [],\n\t\t\tspotShadowMatrix: [],\n\t\t\trectArea: [],\n\t\t\tpoint: [],\n\t\t\tpointShadowMap: [],\n\t\t\tpointShadowMatrix: [],\n\t\t\themi: []\n\n\t\t};\n\n\t\tvar vector3 = new Vector3();\n\t\tvar matrix4 = new Matrix4();\n\t\tvar matrix42 = new Matrix4();\n\n\t\tfunction setup( lights, shadows, camera ) {\n\n\t\t\tvar r = 0, g = 0, b = 0;\n\n\t\t\tvar directionalLength = 0;\n\t\t\tvar pointLength = 0;\n\t\t\tvar spotLength = 0;\n\t\t\tvar rectAreaLength = 0;\n\t\t\tvar hemiLength = 0;\n\n\t\t\tvar viewMatrix = camera.matrixWorldInverse;\n\n\t\t\tfor ( var i = 0, l = lights.length; i < l; i ++ ) {\n\n\t\t\t\tvar light = lights[ i ];\n\n\t\t\t\tvar color = light.color;\n\t\t\t\tvar intensity = light.intensity;\n\t\t\t\tvar distance = light.distance;\n\n\t\t\t\tvar shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;\n\n\t\t\t\tif ( light.isAmbientLight ) {\n\n\t\t\t\t\tr += color.r * intensity;\n\t\t\t\t\tg += color.g * intensity;\n\t\t\t\t\tb += color.b * intensity;\n\n\t\t\t\t} else if ( light.isDirectionalLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.color.copy( light.color ).multiplyScalar( light.intensity );\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tvector3.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tuniforms.direction.sub( vector3 );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tvar shadow = light.shadow;\n\n\t\t\t\t\t\tuniforms.shadowBias = shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = shadow.mapSize;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.directionalShadowMap[ directionalLength ] = shadowMap;\n\t\t\t\t\tstate.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;\n\t\t\t\t\tstate.directional[ directionalLength ] = uniforms;\n\n\t\t\t\t\tdirectionalLength ++;\n\n\t\t\t\t} else if ( light.isSpotLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\tuniforms.color.copy( color ).multiplyScalar( intensity );\n\t\t\t\t\tuniforms.distance = distance;\n\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tvector3.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tuniforms.direction.sub( vector3 );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\n\t\t\t\t\tuniforms.coneCos = Math.cos( light.angle );\n\t\t\t\t\tuniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );\n\t\t\t\t\tuniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tvar shadow = light.shadow;\n\n\t\t\t\t\t\tuniforms.shadowBias = shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = shadow.mapSize;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.spotShadowMap[ spotLength ] = shadowMap;\n\t\t\t\t\tstate.spotShadowMatrix[ spotLength ] = light.shadow.matrix;\n\t\t\t\t\tstate.spot[ spotLength ] = uniforms;\n\n\t\t\t\t\tspotLength ++;\n\n\t\t\t\t} else if ( light.isRectAreaLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\t// (a) intensity is the total visible light emitted\n\t\t\t\t\t//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );\n\n\t\t\t\t\t// (b) intensity is the brightness of the light\n\t\t\t\t\tuniforms.color.copy( color ).multiplyScalar( intensity );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\t// extract local rotation of light to derive width/height half vectors\n\t\t\t\t\tmatrix42.identity();\n\t\t\t\t\tmatrix4.copy( light.matrixWorld );\n\t\t\t\t\tmatrix4.premultiply( viewMatrix );\n\t\t\t\t\tmatrix42.extractRotation( matrix4 );\n\n\t\t\t\t\tuniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );\n\t\t\t\t\tuniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );\n\n\t\t\t\t\tuniforms.halfWidth.applyMatrix4( matrix42 );\n\t\t\t\t\tuniforms.halfHeight.applyMatrix4( matrix42 );\n\n\t\t\t\t\t// TODO (abelnation): RectAreaLight distance?\n\t\t\t\t\t// uniforms.distance = distance;\n\n\t\t\t\t\tstate.rectArea[ rectAreaLength ] = uniforms;\n\n\t\t\t\t\trectAreaLength ++;\n\n\t\t\t\t} else if ( light.isPointLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\tuniforms.color.copy( light.color ).multiplyScalar( light.intensity );\n\t\t\t\t\tuniforms.distance = light.distance;\n\t\t\t\t\tuniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tvar shadow = light.shadow;\n\n\t\t\t\t\t\tuniforms.shadowBias = shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = shadow.mapSize;\n\t\t\t\t\t\tuniforms.shadowCameraNear = shadow.camera.near;\n\t\t\t\t\t\tuniforms.shadowCameraFar = shadow.camera.far;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.pointShadowMap[ pointLength ] = shadowMap;\n\t\t\t\t\tstate.pointShadowMatrix[ pointLength ] = light.shadow.matrix;\n\t\t\t\t\tstate.point[ pointLength ] = uniforms;\n\n\t\t\t\t\tpointLength ++;\n\n\t\t\t\t} else if ( light.isHemisphereLight ) {\n\n\t\t\t\t\tvar uniforms = cache.get( light );\n\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\t\t\t\t\tuniforms.direction.normalize();\n\n\t\t\t\t\tuniforms.skyColor.copy( light.color ).multiplyScalar( intensity );\n\t\t\t\t\tuniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );\n\n\t\t\t\t\tstate.hemi[ hemiLength ] = uniforms;\n\n\t\t\t\t\themiLength ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.ambient[ 0 ] = r;\n\t\t\tstate.ambient[ 1 ] = g;\n\t\t\tstate.ambient[ 2 ] = b;\n\n\t\t\tstate.directional.length = directionalLength;\n\t\t\tstate.spot.length = spotLength;\n\t\t\tstate.rectArea.length = rectAreaLength;\n\t\t\tstate.point.length = pointLength;\n\t\t\tstate.hemi.length = hemiLength;\n\n\t\t\tstate.hash.stateID = state.id;\n\t\t\tstate.hash.directionalLength = directionalLength;\n\t\t\tstate.hash.pointLength = pointLength;\n\t\t\tstate.hash.spotLength = spotLength;\n\t\t\tstate.hash.rectAreaLength = rectAreaLength;\n\t\t\tstate.hash.hemiLength = hemiLength;\n\t\t\tstate.hash.shadowsLength = shadows.length;\n\n\t\t}\n\n\t\treturn {\n\t\t\tsetup: setup,\n\t\t\tstate: state\n\t\t};\n\n\t}\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction WebGLRenderState() {\n\n\t\tvar lights = new WebGLLights();\n\n\t\tvar lightsArray = [];\n\t\tvar shadowsArray = [];\n\n\t\tfunction init() {\n\n\t\t\tlightsArray.length = 0;\n\t\t\tshadowsArray.length = 0;\n\n\t\t}\n\n\t\tfunction pushLight( light ) {\n\n\t\t\tlightsArray.push( light );\n\n\t\t}\n\n\t\tfunction pushShadow( shadowLight ) {\n\n\t\t\tshadowsArray.push( shadowLight );\n\n\t\t}\n\n\t\tfunction setupLights( camera ) {\n\n\t\t\tlights.setup( lightsArray, shadowsArray, camera );\n\n\t\t}\n\n\t\tvar state = {\n\t\t\tlightsArray: lightsArray,\n\t\t\tshadowsArray: shadowsArray,\n\n\t\t\tlights: lights\n\t\t};\n\n\t\treturn {\n\t\t\tinit: init,\n\t\t\tstate: state,\n\t\t\tsetupLights: setupLights,\n\n\t\t\tpushLight: pushLight,\n\t\t\tpushShadow: pushShadow\n\t\t};\n\n\t}\n\n\tfunction WebGLRenderStates() {\n\n\t\tvar renderStates = {};\n\n\t\tfunction get( scene, camera ) {\n\n\t\t\tvar renderState;\n\n\t\t\tif ( renderStates[ scene.id ] === undefined ) {\n\n\t\t\t\trenderState = new WebGLRenderState();\n\t\t\t\trenderStates[ scene.id ] = {};\n\t\t\t\trenderStates[ scene.id ][ camera.id ] = renderState;\n\n\t\t\t} else {\n\n\t\t\t\tif ( renderStates[ scene.id ][ camera.id ] === undefined ) {\n\n\t\t\t\t\trenderState = new WebGLRenderState();\n\t\t\t\t\trenderStates[ scene.id ][ camera.id ] = renderState;\n\n\t\t\t\t} else {\n\n\t\t\t\t\trenderState = renderStates[ scene.id ][ camera.id ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn renderState;\n\n\t\t}\n\n\t\tfunction dispose() {\n\n\t\t\trenderStates = {};\n\n\t\t}\n\n\t\treturn {\n\t\t\tget: get,\n\t\t\tdispose: dispose\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author bhouston / https://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t *\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: \n\t * }\n\t */\n\n\tfunction MeshDepthMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshDepthMaterial';\n\n\t\tthis.depthPacking = BasicDepthPacking;\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.map = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshDepthMaterial.prototype = Object.create( Material.prototype );\n\tMeshDepthMaterial.prototype.constructor = MeshDepthMaterial;\n\n\tMeshDepthMaterial.prototype.isMeshDepthMaterial = true;\n\n\tMeshDepthMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.depthPacking = source.depthPacking;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\tthis.map = source.map;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t *\n\t * referencePosition: ,\n\t * nearDistance: ,\n\t * farDistance: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: \n\t *\n\t * }\n\t */\n\n\tfunction MeshDistanceMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshDistanceMaterial';\n\n\t\tthis.referencePosition = new Vector3();\n\t\tthis.nearDistance = 1;\n\t\tthis.farDistance = 1000;\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.map = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshDistanceMaterial.prototype = Object.create( Material.prototype );\n\tMeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial;\n\n\tMeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;\n\n\tMeshDistanceMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.referencePosition.copy( source.referencePosition );\n\t\tthis.nearDistance = source.nearDistance;\n\t\tthis.farDistance = source.farDistance;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\tthis.map = source.map;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLShadowMap( _renderer, _objects, maxTextureSize ) {\n\n\t\tvar _frustum = new Frustum(),\n\t\t\t_projScreenMatrix = new Matrix4(),\n\n\t\t\t_shadowMapSize = new Vector2(),\n\t\t\t_maxShadowMapSize = new Vector2( maxTextureSize, maxTextureSize ),\n\n\t\t\t_lookTarget = new Vector3(),\n\t\t\t_lightPositionWorld = new Vector3(),\n\n\t\t\t_MorphingFlag = 1,\n\t\t\t_SkinningFlag = 2,\n\n\t\t\t_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,\n\n\t\t\t_depthMaterials = new Array( _NumberOfMaterialVariants ),\n\t\t\t_distanceMaterials = new Array( _NumberOfMaterialVariants ),\n\n\t\t\t_materialCache = {};\n\n\t\tvar shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };\n\n\t\tvar cubeDirections = [\n\t\t\tnew Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),\n\t\t\tnew Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )\n\t\t];\n\n\t\tvar cubeUps = [\n\t\t\tnew Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),\n\t\t\tnew Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),\tnew Vector3( 0, 0, - 1 )\n\t\t];\n\n\t\tvar cube2DViewPorts = [\n\t\t\tnew Vector4(), new Vector4(), new Vector4(),\n\t\t\tnew Vector4(), new Vector4(), new Vector4()\n\t\t];\n\n\t\t// init\n\n\t\tfor ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {\n\n\t\t\tvar useMorphing = ( i & _MorphingFlag ) !== 0;\n\t\t\tvar useSkinning = ( i & _SkinningFlag ) !== 0;\n\n\t\t\tvar depthMaterial = new MeshDepthMaterial( {\n\n\t\t\t\tdepthPacking: RGBADepthPacking,\n\n\t\t\t\tmorphTargets: useMorphing,\n\t\t\t\tskinning: useSkinning\n\n\t\t\t} );\n\n\t\t\t_depthMaterials[ i ] = depthMaterial;\n\n\t\t\t//\n\n\t\t\tvar distanceMaterial = new MeshDistanceMaterial( {\n\n\t\t\t\tmorphTargets: useMorphing,\n\t\t\t\tskinning: useSkinning\n\n\t\t\t} );\n\n\t\t\t_distanceMaterials[ i ] = distanceMaterial;\n\n\t\t}\n\n\t\t//\n\n\t\tvar scope = this;\n\n\t\tthis.enabled = false;\n\n\t\tthis.autoUpdate = true;\n\t\tthis.needsUpdate = false;\n\n\t\tthis.type = PCFShadowMap;\n\n\t\tthis.render = function ( lights, scene, camera ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\t\t\tif ( scope.autoUpdate === false && scope.needsUpdate === false ) return;\n\n\t\t\tif ( lights.length === 0 ) return;\n\n\t\t\t// TODO Clean up (needed in case of contextlost)\n\t\t\tvar _gl = _renderer.context;\n\t\t\tvar _state = _renderer.state;\n\n\t\t\t// Set GL state for depth map.\n\t\t\t_state.disable( _gl.BLEND );\n\t\t\t_state.buffers.color.setClear( 1, 1, 1, 1 );\n\t\t\t_state.buffers.depth.setTest( true );\n\t\t\t_state.setScissorTest( false );\n\n\t\t\t// render depth map\n\n\t\t\tvar faceCount;\n\n\t\t\tfor ( var i = 0, il = lights.length; i < il; i ++ ) {\n\n\t\t\t\tvar light = lights[ i ];\n\t\t\t\tvar shadow = light.shadow;\n\t\t\t\tvar isPointLight = light && light.isPointLight;\n\n\t\t\t\tif ( shadow === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tvar shadowCamera = shadow.camera;\n\n\t\t\t\t_shadowMapSize.copy( shadow.mapSize );\n\t\t\t\t_shadowMapSize.min( _maxShadowMapSize );\n\n\t\t\t\tif ( isPointLight ) {\n\n\t\t\t\t\tvar vpWidth = _shadowMapSize.x;\n\t\t\t\t\tvar vpHeight = _shadowMapSize.y;\n\n\t\t\t\t\t// These viewports map a cube-map onto a 2D texture with the\n\t\t\t\t\t// following orientation:\n\t\t\t\t\t//\n\t\t\t\t\t// xzXZ\n\t\t\t\t\t// y Y\n\t\t\t\t\t//\n\t\t\t\t\t// X - Positive x direction\n\t\t\t\t\t// x - Negative x direction\n\t\t\t\t\t// Y - Positive y direction\n\t\t\t\t\t// y - Negative y direction\n\t\t\t\t\t// Z - Positive z direction\n\t\t\t\t\t// z - Negative z direction\n\n\t\t\t\t\t// positive X\n\t\t\t\t\tcube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// negative X\n\t\t\t\t\tcube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// positive Z\n\t\t\t\t\tcube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// negative Z\n\t\t\t\t\tcube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// positive Y\n\t\t\t\t\tcube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );\n\t\t\t\t\t// negative Y\n\t\t\t\t\tcube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );\n\n\t\t\t\t\t_shadowMapSize.x *= 4.0;\n\t\t\t\t\t_shadowMapSize.y *= 2.0;\n\n\t\t\t\t}\n\n\t\t\t\tif ( shadow.map === null ) {\n\n\t\t\t\t\tvar pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };\n\n\t\t\t\t\tshadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );\n\t\t\t\t\tshadow.map.texture.name = light.name + \".shadowMap\";\n\n\t\t\t\t\tshadowCamera.updateProjectionMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tif ( shadow.isSpotLightShadow ) {\n\n\t\t\t\t\tshadow.update( light );\n\n\t\t\t\t}\n\n\t\t\t\tvar shadowMap = shadow.map;\n\t\t\t\tvar shadowMatrix = shadow.matrix;\n\n\t\t\t\t_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\tshadowCamera.position.copy( _lightPositionWorld );\n\n\t\t\t\tif ( isPointLight ) {\n\n\t\t\t\t\tfaceCount = 6;\n\n\t\t\t\t\t// for point lights we set the shadow matrix to be a translation-only matrix\n\t\t\t\t\t// equal to inverse of the light's position\n\n\t\t\t\t\tshadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfaceCount = 1;\n\n\t\t\t\t\t_lookTarget.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tshadowCamera.lookAt( _lookTarget );\n\t\t\t\t\tshadowCamera.updateMatrixWorld();\n\n\t\t\t\t\t// compute shadow matrix\n\n\t\t\t\t\tshadowMatrix.set(\n\t\t\t\t\t\t0.5, 0.0, 0.0, 0.5,\n\t\t\t\t\t\t0.0, 0.5, 0.0, 0.5,\n\t\t\t\t\t\t0.0, 0.0, 0.5, 0.5,\n\t\t\t\t\t\t0.0, 0.0, 0.0, 1.0\n\t\t\t\t\t);\n\n\t\t\t\t\tshadowMatrix.multiply( shadowCamera.projectionMatrix );\n\t\t\t\t\tshadowMatrix.multiply( shadowCamera.matrixWorldInverse );\n\n\t\t\t\t}\n\n\t\t\t\t_renderer.setRenderTarget( shadowMap );\n\t\t\t\t_renderer.clear();\n\n\t\t\t\t// render shadow map for each cube face (if omni-directional) or\n\t\t\t\t// run a single pass if not\n\n\t\t\t\tfor ( var face = 0; face < faceCount; face ++ ) {\n\n\t\t\t\t\tif ( isPointLight ) {\n\n\t\t\t\t\t\t_lookTarget.copy( shadowCamera.position );\n\t\t\t\t\t\t_lookTarget.add( cubeDirections[ face ] );\n\t\t\t\t\t\tshadowCamera.up.copy( cubeUps[ face ] );\n\t\t\t\t\t\tshadowCamera.lookAt( _lookTarget );\n\t\t\t\t\t\tshadowCamera.updateMatrixWorld();\n\n\t\t\t\t\t\tvar vpDimensions = cube2DViewPorts[ face ];\n\t\t\t\t\t\t_state.viewport( vpDimensions );\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// update camera matrices and frustum\n\n\t\t\t\t\t_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );\n\t\t\t\t\t_frustum.setFromMatrix( _projScreenMatrix );\n\n\t\t\t\t\t// set object matrices & frustum culling\n\n\t\t\t\t\trenderObject( scene, camera, shadowCamera, isPointLight );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tscope.needsUpdate = false;\n\n\t\t};\n\n\t\tfunction getDepthMaterial( object, material, isPointLight, lightPositionWorld, shadowCameraNear, shadowCameraFar ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tvar result = null;\n\n\t\t\tvar materialVariants = _depthMaterials;\n\t\t\tvar customMaterial = object.customDepthMaterial;\n\n\t\t\tif ( isPointLight ) {\n\n\t\t\t\tmaterialVariants = _distanceMaterials;\n\t\t\t\tcustomMaterial = object.customDistanceMaterial;\n\n\t\t\t}\n\n\t\t\tif ( ! customMaterial ) {\n\n\t\t\t\tvar useMorphing = false;\n\n\t\t\t\tif ( material.morphTargets ) {\n\n\t\t\t\t\tif ( geometry && geometry.isBufferGeometry ) {\n\n\t\t\t\t\t\tuseMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;\n\n\t\t\t\t\t} else if ( geometry && geometry.isGeometry ) {\n\n\t\t\t\t\t\tuseMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( object.isSkinnedMesh && material.skinning === false ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );\n\n\t\t\t\t}\n\n\t\t\t\tvar useSkinning = object.isSkinnedMesh && material.skinning;\n\n\t\t\t\tvar variantIndex = 0;\n\n\t\t\t\tif ( useMorphing ) variantIndex |= _MorphingFlag;\n\t\t\t\tif ( useSkinning ) variantIndex |= _SkinningFlag;\n\n\t\t\t\tresult = materialVariants[ variantIndex ];\n\n\t\t\t} else {\n\n\t\t\t\tresult = customMaterial;\n\n\t\t\t}\n\n\t\t\tif ( _renderer.localClippingEnabled &&\n\t\t\t\t\tmaterial.clipShadows === true &&\n\t\t\t\t\tmaterial.clippingPlanes.length !== 0 ) {\n\n\t\t\t\t// in this case we need a unique material instance reflecting the\n\t\t\t\t// appropriate state\n\n\t\t\t\tvar keyA = result.uuid, keyB = material.uuid;\n\n\t\t\t\tvar materialsForVariant = _materialCache[ keyA ];\n\n\t\t\t\tif ( materialsForVariant === undefined ) {\n\n\t\t\t\t\tmaterialsForVariant = {};\n\t\t\t\t\t_materialCache[ keyA ] = materialsForVariant;\n\n\t\t\t\t}\n\n\t\t\t\tvar cachedMaterial = materialsForVariant[ keyB ];\n\n\t\t\t\tif ( cachedMaterial === undefined ) {\n\n\t\t\t\t\tcachedMaterial = result.clone();\n\t\t\t\t\tmaterialsForVariant[ keyB ] = cachedMaterial;\n\n\t\t\t\t}\n\n\t\t\t\tresult = cachedMaterial;\n\n\t\t\t}\n\n\t\t\tresult.visible = material.visible;\n\t\t\tresult.wireframe = material.wireframe;\n\n\t\t\tresult.side = ( material.shadowSide != null ) ? material.shadowSide : shadowSide[ material.side ];\n\n\t\t\tresult.clipShadows = material.clipShadows;\n\t\t\tresult.clippingPlanes = material.clippingPlanes;\n\t\t\tresult.clipIntersection = material.clipIntersection;\n\n\t\t\tresult.wireframeLinewidth = material.wireframeLinewidth;\n\t\t\tresult.linewidth = material.linewidth;\n\n\t\t\tif ( isPointLight && result.isMeshDistanceMaterial ) {\n\n\t\t\t\tresult.referencePosition.copy( lightPositionWorld );\n\t\t\t\tresult.nearDistance = shadowCameraNear;\n\t\t\t\tresult.farDistance = shadowCameraFar;\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t\tfunction renderObject( object, camera, shadowCamera, isPointLight ) {\n\n\t\t\tif ( object.visible === false ) return;\n\n\t\t\tvar visible = object.layers.test( camera.layers );\n\n\t\t\tif ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {\n\n\t\t\t\tif ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {\n\n\t\t\t\t\tobject.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );\n\n\t\t\t\t\tvar geometry = _objects.update( object );\n\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\tvar groups = geometry.groups;\n\n\t\t\t\t\t\tfor ( var k = 0, kl = groups.length; k < kl; k ++ ) {\n\n\t\t\t\t\t\t\tvar group = groups[ k ];\n\t\t\t\t\t\t\tvar groupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\tif ( groupMaterial && groupMaterial.visible ) {\n\n\t\t\t\t\t\t\t\tvar depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );\n\t\t\t\t\t\t\t\t_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( material.visible ) {\n\n\t\t\t\t\t\tvar depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );\n\t\t\t\t\t\t_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\trenderObject( children[ i ], camera, shadowCamera, isPointLight );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLState( gl, extensions, utils, capabilities ) {\n\n\t\tfunction ColorBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar color = new Vector4();\n\t\t\tvar currentColorMask = null;\n\t\t\tvar currentColorClear = new Vector4( 0, 0, 0, 0 );\n\n\t\t\treturn {\n\n\t\t\t\tsetMask: function ( colorMask ) {\n\n\t\t\t\t\tif ( currentColorMask !== colorMask && ! locked ) {\n\n\t\t\t\t\t\tgl.colorMask( colorMask, colorMask, colorMask, colorMask );\n\t\t\t\t\t\tcurrentColorMask = colorMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( r, g, b, a, premultipliedAlpha ) {\n\n\t\t\t\t\tif ( premultipliedAlpha === true ) {\n\n\t\t\t\t\t\tr *= a; g *= a; b *= a;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tcolor.set( r, g, b, a );\n\n\t\t\t\t\tif ( currentColorClear.equals( color ) === false ) {\n\n\t\t\t\t\t\tgl.clearColor( r, g, b, a );\n\t\t\t\t\t\tcurrentColorClear.copy( color );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentColorMask = null;\n\t\t\t\t\tcurrentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\tfunction DepthBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar currentDepthMask = null;\n\t\t\tvar currentDepthFunc = null;\n\t\t\tvar currentDepthClear = null;\n\n\t\t\treturn {\n\n\t\t\t\tsetTest: function ( depthTest ) {\n\n\t\t\t\t\tif ( depthTest ) {\n\n\t\t\t\t\t\tenable( gl.DEPTH_TEST );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tdisable( gl.DEPTH_TEST );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetMask: function ( depthMask ) {\n\n\t\t\t\t\tif ( currentDepthMask !== depthMask && ! locked ) {\n\n\t\t\t\t\t\tgl.depthMask( depthMask );\n\t\t\t\t\t\tcurrentDepthMask = depthMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetFunc: function ( depthFunc ) {\n\n\t\t\t\t\tif ( currentDepthFunc !== depthFunc ) {\n\n\t\t\t\t\t\tif ( depthFunc ) {\n\n\t\t\t\t\t\t\tswitch ( depthFunc ) {\n\n\t\t\t\t\t\t\t\tcase NeverDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.NEVER );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase AlwaysDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.ALWAYS );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase LessDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LESS );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase LessEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase EqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.EQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase GreaterEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.GEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase GreaterDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.GREATER );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase NotEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.NOTEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcurrentDepthFunc = depthFunc;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( depth ) {\n\n\t\t\t\t\tif ( currentDepthClear !== depth ) {\n\n\t\t\t\t\t\tgl.clearDepth( depth );\n\t\t\t\t\t\tcurrentDepthClear = depth;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentDepthMask = null;\n\t\t\t\t\tcurrentDepthFunc = null;\n\t\t\t\t\tcurrentDepthClear = null;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\tfunction StencilBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar currentStencilMask = null;\n\t\t\tvar currentStencilFunc = null;\n\t\t\tvar currentStencilRef = null;\n\t\t\tvar currentStencilFuncMask = null;\n\t\t\tvar currentStencilFail = null;\n\t\t\tvar currentStencilZFail = null;\n\t\t\tvar currentStencilZPass = null;\n\t\t\tvar currentStencilClear = null;\n\n\t\t\treturn {\n\n\t\t\t\tsetTest: function ( stencilTest ) {\n\n\t\t\t\t\tif ( stencilTest ) {\n\n\t\t\t\t\t\tenable( gl.STENCIL_TEST );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tdisable( gl.STENCIL_TEST );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetMask: function ( stencilMask ) {\n\n\t\t\t\t\tif ( currentStencilMask !== stencilMask && ! locked ) {\n\n\t\t\t\t\t\tgl.stencilMask( stencilMask );\n\t\t\t\t\t\tcurrentStencilMask = stencilMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetFunc: function ( stencilFunc, stencilRef, stencilMask ) {\n\n\t\t\t\t\tif ( currentStencilFunc !== stencilFunc ||\n\t\t\t\t\t currentStencilRef \t!== stencilRef \t||\n\t\t\t\t\t currentStencilFuncMask !== stencilMask ) {\n\n\t\t\t\t\t\tgl.stencilFunc( stencilFunc, stencilRef, stencilMask );\n\n\t\t\t\t\t\tcurrentStencilFunc = stencilFunc;\n\t\t\t\t\t\tcurrentStencilRef = stencilRef;\n\t\t\t\t\t\tcurrentStencilFuncMask = stencilMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetOp: function ( stencilFail, stencilZFail, stencilZPass ) {\n\n\t\t\t\t\tif ( currentStencilFail\t !== stencilFail \t||\n\t\t\t\t\t currentStencilZFail !== stencilZFail ||\n\t\t\t\t\t currentStencilZPass !== stencilZPass ) {\n\n\t\t\t\t\t\tgl.stencilOp( stencilFail, stencilZFail, stencilZPass );\n\n\t\t\t\t\t\tcurrentStencilFail = stencilFail;\n\t\t\t\t\t\tcurrentStencilZFail = stencilZFail;\n\t\t\t\t\t\tcurrentStencilZPass = stencilZPass;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( stencil ) {\n\n\t\t\t\t\tif ( currentStencilClear !== stencil ) {\n\n\t\t\t\t\t\tgl.clearStencil( stencil );\n\t\t\t\t\t\tcurrentStencilClear = stencil;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentStencilMask = null;\n\t\t\t\t\tcurrentStencilFunc = null;\n\t\t\t\t\tcurrentStencilRef = null;\n\t\t\t\t\tcurrentStencilFuncMask = null;\n\t\t\t\t\tcurrentStencilFail = null;\n\t\t\t\t\tcurrentStencilZFail = null;\n\t\t\t\t\tcurrentStencilZPass = null;\n\t\t\t\t\tcurrentStencilClear = null;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\t//\n\n\t\tvar colorBuffer = new ColorBuffer();\n\t\tvar depthBuffer = new DepthBuffer();\n\t\tvar stencilBuffer = new StencilBuffer();\n\n\t\tvar maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );\n\t\tvar newAttributes = new Uint8Array( maxVertexAttributes );\n\t\tvar enabledAttributes = new Uint8Array( maxVertexAttributes );\n\t\tvar attributeDivisors = new Uint8Array( maxVertexAttributes );\n\n\t\tvar enabledCapabilities = {};\n\n\t\tvar compressedTextureFormats = null;\n\n\t\tvar currentProgram = null;\n\n\t\tvar currentBlending = null;\n\t\tvar currentBlendEquation = null;\n\t\tvar currentBlendSrc = null;\n\t\tvar currentBlendDst = null;\n\t\tvar currentBlendEquationAlpha = null;\n\t\tvar currentBlendSrcAlpha = null;\n\t\tvar currentBlendDstAlpha = null;\n\t\tvar currentPremultipledAlpha = false;\n\n\t\tvar currentFlipSided = null;\n\t\tvar currentCullFace = null;\n\n\t\tvar currentLineWidth = null;\n\n\t\tvar currentPolygonOffsetFactor = null;\n\t\tvar currentPolygonOffsetUnits = null;\n\n\t\tvar maxTextures = gl.getParameter( gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS );\n\n\t\tvar lineWidthAvailable = false;\n\t\tvar version = 0;\n\t\tvar glVersion = gl.getParameter( gl.VERSION );\n\n\t\tif ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {\n\n\t\t\tversion = parseFloat( /^WebGL\\ ([0-9])/.exec( glVersion )[ 1 ] );\n\t\t\tlineWidthAvailable = ( version >= 1.0 );\n\n\t\t} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {\n\n\t\t\tversion = parseFloat( /^OpenGL\\ ES\\ ([0-9])/.exec( glVersion )[ 1 ] );\n\t\t\tlineWidthAvailable = ( version >= 2.0 );\n\n\t\t}\n\n\t\tvar currentTextureSlot = null;\n\t\tvar currentBoundTextures = {};\n\n\t\tvar currentScissor = new Vector4();\n\t\tvar currentViewport = new Vector4();\n\n\t\tfunction createTexture( type, target, count ) {\n\n\t\t\tvar data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.\n\t\t\tvar texture = gl.createTexture();\n\n\t\t\tgl.bindTexture( type, texture );\n\t\t\tgl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST );\n\t\t\tgl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST );\n\n\t\t\tfor ( var i = 0; i < count; i ++ ) {\n\n\t\t\t\tgl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t}\n\n\t\tvar emptyTextures = {};\n\t\temptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 );\n\t\temptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 );\n\n\t\t// init\n\n\t\tcolorBuffer.setClear( 0, 0, 0, 1 );\n\t\tdepthBuffer.setClear( 1 );\n\t\tstencilBuffer.setClear( 0 );\n\n\t\tenable( gl.DEPTH_TEST );\n\t\tdepthBuffer.setFunc( LessEqualDepth );\n\n\t\tsetFlipSided( false );\n\t\tsetCullFace( CullFaceBack );\n\t\tenable( gl.CULL_FACE );\n\n\t\tenable( gl.BLEND );\n\t\tsetBlending( NormalBlending );\n\n\t\t//\n\n\t\tfunction initAttributes() {\n\n\t\t\tfor ( var i = 0, l = newAttributes.length; i < l; i ++ ) {\n\n\t\t\t\tnewAttributes[ i ] = 0;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction enableAttribute( attribute ) {\n\n\t\t\tenableAttributeAndDivisor( attribute, 0 );\n\n\t\t}\n\n\t\tfunction enableAttributeAndDivisor( attribute, meshPerAttribute ) {\n\n\t\t\tnewAttributes[ attribute ] = 1;\n\n\t\t\tif ( enabledAttributes[ attribute ] === 0 ) {\n\n\t\t\t\tgl.enableVertexAttribArray( attribute );\n\t\t\t\tenabledAttributes[ attribute ] = 1;\n\n\t\t\t}\n\n\t\t\tif ( attributeDivisors[ attribute ] !== meshPerAttribute ) {\n\n\t\t\t\tvar extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\textension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute );\n\t\t\t\tattributeDivisors[ attribute ] = meshPerAttribute;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction disableUnusedAttributes() {\n\n\t\t\tfor ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {\n\n\t\t\t\tif ( enabledAttributes[ i ] !== newAttributes[ i ] ) {\n\n\t\t\t\t\tgl.disableVertexAttribArray( i );\n\t\t\t\t\tenabledAttributes[ i ] = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction enable( id ) {\n\n\t\t\tif ( enabledCapabilities[ id ] !== true ) {\n\n\t\t\t\tgl.enable( id );\n\t\t\t\tenabledCapabilities[ id ] = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction disable( id ) {\n\n\t\t\tif ( enabledCapabilities[ id ] !== false ) {\n\n\t\t\t\tgl.disable( id );\n\t\t\t\tenabledCapabilities[ id ] = false;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getCompressedTextureFormats() {\n\n\t\t\tif ( compressedTextureFormats === null ) {\n\n\t\t\t\tcompressedTextureFormats = [];\n\n\t\t\t\tif ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_etc1' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_astc' ) ) {\n\n\t\t\t\t\tvar formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );\n\n\t\t\t\t\tfor ( var i = 0; i < formats.length; i ++ ) {\n\n\t\t\t\t\t\tcompressedTextureFormats.push( formats[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn compressedTextureFormats;\n\n\t\t}\n\n\t\tfunction useProgram( program ) {\n\n\t\t\tif ( currentProgram !== program ) {\n\n\t\t\t\tgl.useProgram( program );\n\n\t\t\t\tcurrentProgram = program;\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\treturn false;\n\n\t\t}\n\n\t\tfunction setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {\n\n\t\t\tif ( blending !== NoBlending ) {\n\n\t\t\t\tenable( gl.BLEND );\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.BLEND );\n\n\t\t\t}\n\n\t\t\tif ( blending !== CustomBlending ) {\n\n\t\t\t\tif ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {\n\n\t\t\t\t\tswitch ( blending ) {\n\n\t\t\t\t\t\tcase AdditiveBlending:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ONE, gl.ONE, gl.ONE, gl.ONE );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFunc( gl.SRC_ALPHA, gl.ONE );\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase SubtractiveBlending:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase MultiplyBlending:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFunc( gl.ZERO, gl.SRC_COLOR );\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\t\t\tgl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tcurrentBlendEquation = null;\n\t\t\t\tcurrentBlendSrc = null;\n\t\t\t\tcurrentBlendDst = null;\n\t\t\t\tcurrentBlendEquationAlpha = null;\n\t\t\t\tcurrentBlendSrcAlpha = null;\n\t\t\t\tcurrentBlendDstAlpha = null;\n\n\t\t\t} else {\n\n\t\t\t\tblendEquationAlpha = blendEquationAlpha || blendEquation;\n\t\t\t\tblendSrcAlpha = blendSrcAlpha || blendSrc;\n\t\t\t\tblendDstAlpha = blendDstAlpha || blendDst;\n\n\t\t\t\tif ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {\n\n\t\t\t\t\tgl.blendEquationSeparate( utils.convert( blendEquation ), utils.convert( blendEquationAlpha ) );\n\n\t\t\t\t\tcurrentBlendEquation = blendEquation;\n\t\t\t\t\tcurrentBlendEquationAlpha = blendEquationAlpha;\n\n\t\t\t\t}\n\n\t\t\t\tif ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {\n\n\t\t\t\t\tgl.blendFuncSeparate( utils.convert( blendSrc ), utils.convert( blendDst ), utils.convert( blendSrcAlpha ), utils.convert( blendDstAlpha ) );\n\n\t\t\t\t\tcurrentBlendSrc = blendSrc;\n\t\t\t\t\tcurrentBlendDst = blendDst;\n\t\t\t\t\tcurrentBlendSrcAlpha = blendSrcAlpha;\n\t\t\t\t\tcurrentBlendDstAlpha = blendDstAlpha;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tcurrentBlending = blending;\n\t\t\tcurrentPremultipledAlpha = premultipliedAlpha;\n\n\t\t}\n\n\t\tfunction setMaterial( material, frontFaceCW ) {\n\n\t\t\tmaterial.side === DoubleSide\n\t\t\t\t? disable( gl.CULL_FACE )\n\t\t\t\t: enable( gl.CULL_FACE );\n\n\t\t\tvar flipSided = ( material.side === BackSide );\n\t\t\tif ( frontFaceCW ) flipSided = ! flipSided;\n\n\t\t\tsetFlipSided( flipSided );\n\n\t\t\t( material.blending === NormalBlending && material.transparent === false )\n\t\t\t\t? setBlending( NoBlending )\n\t\t\t\t: setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );\n\n\t\t\tdepthBuffer.setFunc( material.depthFunc );\n\t\t\tdepthBuffer.setTest( material.depthTest );\n\t\t\tdepthBuffer.setMask( material.depthWrite );\n\t\t\tcolorBuffer.setMask( material.colorWrite );\n\n\t\t\tsetPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );\n\n\t\t}\n\n\t\t//\n\n\t\tfunction setFlipSided( flipSided ) {\n\n\t\t\tif ( currentFlipSided !== flipSided ) {\n\n\t\t\t\tif ( flipSided ) {\n\n\t\t\t\t\tgl.frontFace( gl.CW );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tgl.frontFace( gl.CCW );\n\n\t\t\t\t}\n\n\t\t\t\tcurrentFlipSided = flipSided;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setCullFace( cullFace ) {\n\n\t\t\tif ( cullFace !== CullFaceNone ) {\n\n\t\t\t\tenable( gl.CULL_FACE );\n\n\t\t\t\tif ( cullFace !== currentCullFace ) {\n\n\t\t\t\t\tif ( cullFace === CullFaceBack ) {\n\n\t\t\t\t\t\tgl.cullFace( gl.BACK );\n\n\t\t\t\t\t} else if ( cullFace === CullFaceFront ) {\n\n\t\t\t\t\t\tgl.cullFace( gl.FRONT );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tgl.cullFace( gl.FRONT_AND_BACK );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.CULL_FACE );\n\n\t\t\t}\n\n\t\t\tcurrentCullFace = cullFace;\n\n\t\t}\n\n\t\tfunction setLineWidth( width ) {\n\n\t\t\tif ( width !== currentLineWidth ) {\n\n\t\t\t\tif ( lineWidthAvailable ) gl.lineWidth( width );\n\n\t\t\t\tcurrentLineWidth = width;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setPolygonOffset( polygonOffset, factor, units ) {\n\n\t\t\tif ( polygonOffset ) {\n\n\t\t\t\tenable( gl.POLYGON_OFFSET_FILL );\n\n\t\t\t\tif ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {\n\n\t\t\t\t\tgl.polygonOffset( factor, units );\n\n\t\t\t\t\tcurrentPolygonOffsetFactor = factor;\n\t\t\t\t\tcurrentPolygonOffsetUnits = units;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.POLYGON_OFFSET_FILL );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setScissorTest( scissorTest ) {\n\n\t\t\tif ( scissorTest ) {\n\n\t\t\t\tenable( gl.SCISSOR_TEST );\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.SCISSOR_TEST );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// texture\n\n\t\tfunction activeTexture( webglSlot ) {\n\n\t\t\tif ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;\n\n\t\t\tif ( currentTextureSlot !== webglSlot ) {\n\n\t\t\t\tgl.activeTexture( webglSlot );\n\t\t\t\tcurrentTextureSlot = webglSlot;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction bindTexture( webglType, webglTexture ) {\n\n\t\t\tif ( currentTextureSlot === null ) {\n\n\t\t\t\tactiveTexture();\n\n\t\t\t}\n\n\t\t\tvar boundTexture = currentBoundTextures[ currentTextureSlot ];\n\n\t\t\tif ( boundTexture === undefined ) {\n\n\t\t\t\tboundTexture = { type: undefined, texture: undefined };\n\t\t\t\tcurrentBoundTextures[ currentTextureSlot ] = boundTexture;\n\n\t\t\t}\n\n\t\t\tif ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {\n\n\t\t\t\tgl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );\n\n\t\t\t\tboundTexture.type = webglType;\n\t\t\t\tboundTexture.texture = webglTexture;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction compressedTexImage2D() {\n\n\t\t\ttry {\n\n\t\t\t\tgl.compressedTexImage2D.apply( gl, arguments );\n\n\t\t\t} catch ( error ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLState:', error );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction texImage2D() {\n\n\t\t\ttry {\n\n\t\t\t\tgl.texImage2D.apply( gl, arguments );\n\n\t\t\t} catch ( error ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLState:', error );\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tfunction scissor( scissor ) {\n\n\t\t\tif ( currentScissor.equals( scissor ) === false ) {\n\n\t\t\t\tgl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );\n\t\t\t\tcurrentScissor.copy( scissor );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction viewport( viewport ) {\n\n\t\t\tif ( currentViewport.equals( viewport ) === false ) {\n\n\t\t\t\tgl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );\n\t\t\t\tcurrentViewport.copy( viewport );\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tfunction reset() {\n\n\t\t\tfor ( var i = 0; i < enabledAttributes.length; i ++ ) {\n\n\t\t\t\tif ( enabledAttributes[ i ] === 1 ) {\n\n\t\t\t\t\tgl.disableVertexAttribArray( i );\n\t\t\t\t\tenabledAttributes[ i ] = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tenabledCapabilities = {};\n\n\t\t\tcompressedTextureFormats = null;\n\n\t\t\tcurrentTextureSlot = null;\n\t\t\tcurrentBoundTextures = {};\n\n\t\t\tcurrentProgram = null;\n\n\t\t\tcurrentBlending = null;\n\n\t\t\tcurrentFlipSided = null;\n\t\t\tcurrentCullFace = null;\n\n\t\t\tcolorBuffer.reset();\n\t\t\tdepthBuffer.reset();\n\t\t\tstencilBuffer.reset();\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tbuffers: {\n\t\t\t\tcolor: colorBuffer,\n\t\t\t\tdepth: depthBuffer,\n\t\t\t\tstencil: stencilBuffer\n\t\t\t},\n\n\t\t\tinitAttributes: initAttributes,\n\t\t\tenableAttribute: enableAttribute,\n\t\t\tenableAttributeAndDivisor: enableAttributeAndDivisor,\n\t\t\tdisableUnusedAttributes: disableUnusedAttributes,\n\t\t\tenable: enable,\n\t\t\tdisable: disable,\n\t\t\tgetCompressedTextureFormats: getCompressedTextureFormats,\n\n\t\t\tuseProgram: useProgram,\n\n\t\t\tsetBlending: setBlending,\n\t\t\tsetMaterial: setMaterial,\n\n\t\t\tsetFlipSided: setFlipSided,\n\t\t\tsetCullFace: setCullFace,\n\n\t\t\tsetLineWidth: setLineWidth,\n\t\t\tsetPolygonOffset: setPolygonOffset,\n\n\t\t\tsetScissorTest: setScissorTest,\n\n\t\t\tactiveTexture: activeTexture,\n\t\t\tbindTexture: bindTexture,\n\t\t\tcompressedTexImage2D: compressedTexImage2D,\n\t\t\ttexImage2D: texImage2D,\n\n\t\t\tscissor: scissor,\n\t\t\tviewport: viewport,\n\n\t\t\treset: reset\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) {\n\n\t\tvar _videoTextures = {};\n\t\tvar _canvas;\n\n\t\t//\n\n\t\tfunction clampToMaxSize( image, maxSize ) {\n\n\t\t\tif ( image.width > maxSize || image.height > maxSize ) {\n\n\t\t\t\tif ( 'data' in image ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image in DataTexture is too big (' + image.width + 'x' + image.height + ').' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\t// Warning: Scaling through the canvas will only work with images that use\n\t\t\t\t// premultiplied alpha.\n\n\t\t\t\tvar scale = maxSize / Math.max( image.width, image.height );\n\n\t\t\t\tvar canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\t\tcanvas.width = Math.floor( image.width * scale );\n\t\t\t\tcanvas.height = Math.floor( image.height * scale );\n\n\t\t\t\tvar context = canvas.getContext( '2d' );\n\t\t\t\tcontext.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height );\n\n\t\t\t\treturn canvas;\n\n\t\t\t}\n\n\t\t\treturn image;\n\n\t\t}\n\n\t\tfunction isPowerOfTwo( image ) {\n\n\t\t\treturn _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );\n\n\t\t}\n\n\t\tfunction makePowerOfTwo( image ) {\n\n\t\t\tif ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement || image instanceof ImageBitmap ) {\n\n\t\t\t\tif ( _canvas === undefined ) _canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\n\t\t\t\t_canvas.width = _Math.floorPowerOfTwo( image.width );\n\t\t\t\t_canvas.height = _Math.floorPowerOfTwo( image.height );\n\n\t\t\t\tvar context = _canvas.getContext( '2d' );\n\t\t\t\tcontext.drawImage( image, 0, 0, _canvas.width, _canvas.height );\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + _canvas.width + 'x' + _canvas.height );\n\n\t\t\t\treturn _canvas;\n\n\t\t\t}\n\n\t\t\treturn image;\n\n\t\t}\n\n\t\tfunction textureNeedsPowerOfTwo( texture ) {\n\n\t\t\tif ( capabilities.isWebGL2 ) return false;\n\n\t\t\treturn ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||\n\t\t\t\t( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );\n\n\t\t}\n\n\t\tfunction textureNeedsGenerateMipmaps( texture, isPowerOfTwo ) {\n\n\t\t\treturn texture.generateMipmaps && isPowerOfTwo &&\n\t\t\t\ttexture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;\n\n\t\t}\n\n\t\tfunction generateMipmap( target, texture, width, height ) {\n\n\t\t\t_gl.generateMipmap( target );\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\t// Note: Math.log( x ) * Math.LOG2E used instead of Math.log2( x ) which is not supported by IE11\n\t\t\ttextureProperties.__maxMipLevel = Math.log( Math.max( width, height ) ) * Math.LOG2E;\n\n\t\t}\n\n\t\tfunction getInternalFormat( glFormat, glType ) {\n\n\t\t\tif ( ! capabilities.isWebGL2 ) return glFormat;\n\n\t\t\tif ( glFormat === _gl.RGB ) {\n\n\t\t\t\tif ( glType === _gl.FLOAT ) return _gl.RGB32F;\n\t\t\t\tif ( glType === _gl.HALF_FLOAT ) return _gl.RGB16F;\n\t\t\t\tif ( glType === _gl.UNSIGNED_BYTE ) return _gl.RGB8;\n\n\t\t\t}\n\n\t\t\tif ( glFormat === _gl.RGBA ) {\n\n\t\t\t\tif ( glType === _gl.FLOAT ) return _gl.RGBA32F;\n\t\t\t\tif ( glType === _gl.HALF_FLOAT ) return _gl.RGBA16F;\n\t\t\t\tif ( glType === _gl.UNSIGNED_BYTE ) return _gl.RGBA8;\n\n\t\t\t}\n\n\t\t\treturn glFormat;\n\n\t\t}\n\n\t\t// Fallback filters for non-power-of-2 textures\n\n\t\tfunction filterFallback( f ) {\n\n\t\t\tif ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {\n\n\t\t\t\treturn _gl.NEAREST;\n\n\t\t\t}\n\n\t\t\treturn _gl.LINEAR;\n\n\t\t}\n\n\t\t//\n\n\t\tfunction onTextureDispose( event ) {\n\n\t\t\tvar texture = event.target;\n\n\t\t\ttexture.removeEventListener( 'dispose', onTextureDispose );\n\n\t\t\tdeallocateTexture( texture );\n\n\t\t\tif ( texture.isVideoTexture ) {\n\n\t\t\t\tdelete _videoTextures[ texture.id ];\n\n\t\t\t}\n\n\t\t\tinfo.memory.textures --;\n\n\t\t}\n\n\t\tfunction onRenderTargetDispose( event ) {\n\n\t\t\tvar renderTarget = event.target;\n\n\t\t\trenderTarget.removeEventListener( 'dispose', onRenderTargetDispose );\n\n\t\t\tdeallocateRenderTarget( renderTarget );\n\n\t\t\tinfo.memory.textures --;\n\n\t\t}\n\n\t\t//\n\n\t\tfunction deallocateTexture( texture ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.image && textureProperties.__image__webglTextureCube ) {\n\n\t\t\t\t// cube texture\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__image__webglTextureCube );\n\n\t\t\t} else {\n\n\t\t\t\t// 2D texture\n\n\t\t\t\tif ( textureProperties.__webglInit === undefined ) return;\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__webglTexture );\n\n\t\t\t}\n\n\t\t\t// remove all webgl properties\n\t\t\tproperties.remove( texture );\n\n\t\t}\n\n\t\tfunction deallocateRenderTarget( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\n\t\t\tif ( ! renderTarget ) return;\n\n\t\t\tif ( textureProperties.__webglTexture !== undefined ) {\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__webglTexture );\n\n\t\t\t}\n\n\t\t\tif ( renderTarget.depthTexture ) {\n\n\t\t\t\trenderTarget.depthTexture.dispose();\n\n\t\t\t}\n\n\t\t\tif ( renderTarget.isWebGLRenderTargetCube ) {\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );\n\t\t\t\t\tif ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );\n\t\t\t\tif ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );\n\n\t\t\t}\n\n\t\t\tproperties.remove( renderTarget.texture );\n\t\t\tproperties.remove( renderTarget );\n\n\t\t}\n\n\t\t//\n\n\n\n\t\tfunction setTexture2D( texture, slot ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.isVideoTexture ) updateVideoTexture( texture );\n\n\t\t\tif ( texture.version > 0 && textureProperties.__version !== texture.version ) {\n\n\t\t\t\tvar image = texture.image;\n\n\t\t\t\tif ( image === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' );\n\n\t\t\t\t} else if ( image.complete === false ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tuploadTexture( textureProperties, texture, slot );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\n\t\t}\n\n\t\tfunction setTextureCube( texture, slot ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.image.length === 6 ) {\n\n\t\t\t\tif ( texture.version > 0 && textureProperties.__version !== texture.version ) {\n\n\t\t\t\t\tif ( ! textureProperties.__image__webglTextureCube ) {\n\n\t\t\t\t\t\ttexture.addEventListener( 'dispose', onTextureDispose );\n\n\t\t\t\t\t\ttextureProperties.__image__webglTextureCube = _gl.createTexture();\n\n\t\t\t\t\t\tinfo.memory.textures ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );\n\n\t\t\t\t\t_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );\n\n\t\t\t\t\tvar isCompressed = ( texture && texture.isCompressedTexture );\n\t\t\t\t\tvar isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );\n\n\t\t\t\t\tvar cubeImage = [];\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\tif ( ! isCompressed && ! isDataTexture ) {\n\n\t\t\t\t\t\t\tcubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tcubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar image = cubeImage[ 0 ],\n\t\t\t\t\t\tisPowerOfTwoImage = isPowerOfTwo( image ),\n\t\t\t\t\t\tglFormat = utils.convert( texture.format ),\n\t\t\t\t\t\tglType = utils.convert( texture.type ),\n\t\t\t\t\t\tglInternalFormat = getInternalFormat( glFormat, glType );\n\n\t\t\t\t\tsetTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage );\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\tif ( ! isCompressed ) {\n\n\t\t\t\t\t\t\tif ( isDataTexture ) {\n\n\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar mipmap, mipmaps = cubeImage[ i ].mipmaps;\n\n\t\t\t\t\t\t\tfor ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tmipmap = mipmaps[ j ];\n\n\t\t\t\t\t\t\t\tif ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {\n\n\t\t\t\t\t\t\t\t\tif ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {\n\n\t\t\t\t\t\t\t\t\t\tstate.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );\n\n\t\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( ! isCompressed ) {\n\n\t\t\t\t\t\ttextureProperties.__maxMipLevel = 0;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {\n\n\t\t\t\t\t\t// We assume images for cube map have the same size.\n\t\t\t\t\t\tgenerateMipmap( _gl.TEXTURE_CUBE_MAP, texture, image.width, image.height );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttextureProperties.__version = texture.version;\n\n\t\t\t\t\tif ( texture.onUpdate ) texture.onUpdate( texture );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setTextureCubeDynamic( texture, slot ) {\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );\n\n\t\t}\n\n\t\tfunction setTextureParameters( textureType, texture, isPowerOfTwoImage ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( isPowerOfTwoImage ) {\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, utils.convert( texture.wrapS ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, utils.convert( texture.wrapT ) );\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, utils.convert( texture.magFilter ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, utils.convert( texture.minFilter ) );\n\n\t\t\t} else {\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );\n\n\t\t\t\tif ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' );\n\n\t\t\t\t}\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );\n\n\t\t\t\tif ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\textension = extensions.get( 'EXT_texture_filter_anisotropic' );\n\n\t\t\tif ( extension ) {\n\n\t\t\t\tif ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;\n\t\t\t\tif ( texture.type === HalfFloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_half_float_linear' ) ) === null ) return;\n\n\t\t\t\tif ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {\n\n\t\t\t\t\t_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );\n\t\t\t\t\tproperties.get( texture ).__currentAnisotropy = texture.anisotropy;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction uploadTexture( textureProperties, texture, slot ) {\n\n\t\t\tif ( textureProperties.__webglInit === undefined ) {\n\n\t\t\t\ttextureProperties.__webglInit = true;\n\n\t\t\t\ttexture.addEventListener( 'dispose', onTextureDispose );\n\n\t\t\t\ttextureProperties.__webglTexture = _gl.createTexture();\n\n\t\t\t\tinfo.memory.textures ++;\n\n\t\t\t}\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\n\t\t\t_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );\n\t\t\t_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );\n\t\t\t_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );\n\n\t\t\tvar image = clampToMaxSize( texture.image, capabilities.maxTextureSize );\n\n\t\t\tif ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) {\n\n\t\t\t\timage = makePowerOfTwo( image );\n\n\t\t\t}\n\n\t\t\tvar isPowerOfTwoImage = isPowerOfTwo( image ),\n\t\t\t\tglFormat = utils.convert( texture.format ),\n\t\t\t\tglType = utils.convert( texture.type ),\n\t\t\t\tglInternalFormat = getInternalFormat( glFormat, glType );\n\n\t\t\tsetTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage );\n\n\t\t\tvar mipmap, mipmaps = texture.mipmaps;\n\n\t\t\tif ( texture.isDepthTexture ) {\n\n\t\t\t\t// populate depth texture with dummy data\n\n\t\t\t\tglInternalFormat = _gl.DEPTH_COMPONENT;\n\n\t\t\t\tif ( texture.type === FloatType ) {\n\n\t\t\t\t\tif ( ! capabilities.isWebGL2 ) throw new Error( 'Float Depth Texture only supported in WebGL2.0' );\n\t\t\t\t\tglInternalFormat = _gl.DEPTH_COMPONENT32F;\n\n\t\t\t\t} else if ( capabilities.isWebGL2 ) {\n\n\t\t\t\t\t// WebGL 2.0 requires signed internalformat for glTexImage2D\n\t\t\t\t\tglInternalFormat = _gl.DEPTH_COMPONENT16;\n\n\t\t\t\t}\n\n\t\t\t\tif ( texture.format === DepthFormat && glInternalFormat === _gl.DEPTH_COMPONENT ) {\n\n\t\t\t\t\t// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are\n\t\t\t\t\t// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT\n\t\t\t\t\t// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)\n\t\t\t\t\tif ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );\n\n\t\t\t\t\t\ttexture.type = UnsignedShortType;\n\t\t\t\t\t\tglType = utils.convert( texture.type );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// Depth stencil textures need the DEPTH_STENCIL internal format\n\t\t\t\t// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)\n\t\t\t\tif ( texture.format === DepthStencilFormat ) {\n\n\t\t\t\t\tglInternalFormat = _gl.DEPTH_STENCIL;\n\n\t\t\t\t\t// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are\n\t\t\t\t\t// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.\n\t\t\t\t\t// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)\n\t\t\t\t\tif ( texture.type !== UnsignedInt248Type ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );\n\n\t\t\t\t\t\ttexture.type = UnsignedInt248Type;\n\t\t\t\t\t\tglType = utils.convert( texture.type );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );\n\n\t\t\t} else if ( texture.isDataTexture ) {\n\n\t\t\t\t// use manually created mipmaps if available\n\t\t\t\t// if there are no manual mipmaps\n\t\t\t\t// set 0 level mipmap and then use GL to generate other mipmap levels\n\n\t\t\t\tif ( mipmaps.length > 0 && isPowerOfTwoImage ) {\n\n\t\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tmipmap = mipmaps[ i ];\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.generateMipmaps = false;\n\t\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data );\n\t\t\t\t\ttextureProperties.__maxMipLevel = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( texture.isCompressedTexture ) {\n\n\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\tmipmap = mipmaps[ i ];\n\n\t\t\t\t\tif ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {\n\n\t\t\t\t\t\tif ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {\n\n\t\t\t\t\t\t\tstate.compressedTexImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t} else {\n\n\t\t\t\t// regular Texture (image, video, canvas)\n\n\t\t\t\t// use manually created mipmaps if available\n\t\t\t\t// if there are no manual mipmaps\n\t\t\t\t// set 0 level mipmap and then use GL to generate other mipmap levels\n\n\t\t\t\tif ( mipmaps.length > 0 && isPowerOfTwoImage ) {\n\n\t\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tmipmap = mipmaps[ i ];\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, glFormat, glType, mipmap );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.generateMipmaps = false;\n\t\t\t\t\ttextureProperties.__maxMipLevel = mipmaps.length - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, glFormat, glType, image );\n\t\t\t\t\ttextureProperties.__maxMipLevel = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {\n\n\t\t\t\tgenerateMipmap( _gl.TEXTURE_2D, texture, image.width, image.height );\n\n\t\t\t}\n\n\t\t\ttextureProperties.__version = texture.version;\n\n\t\t\tif ( texture.onUpdate ) texture.onUpdate( texture );\n\n\t\t}\n\n\t\t// Render targets\n\n\t\t// Setup storage for target texture and bind it to correct framebuffer\n\t\tfunction setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {\n\n\t\t\tvar glFormat = utils.convert( renderTarget.texture.format );\n\t\t\tvar glType = utils.convert( renderTarget.texture.type );\n\t\t\tvar glInternalFormat = getInternalFormat( glFormat, glType );\n\t\t\tstate.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );\n\n\t\t}\n\n\t\t// Setup storage for internal depth/stencil buffers and bind to correct framebuffer\n\t\tfunction setupRenderBufferStorage( renderbuffer, renderTarget ) {\n\n\t\t\t_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\tif ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {\n\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );\n\t\t\t\t_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\t} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {\n\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );\n\t\t\t\t_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\t} else {\n\n\t\t\t\t// FIXME: We don't support !depth !stencil\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );\n\n\t\t\t}\n\n\t\t\t_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );\n\n\t\t}\n\n\t\t// Setup resources for a Depth Texture for a FBO (needs an extension)\n\t\tfunction setupDepthTexture( framebuffer, renderTarget ) {\n\n\t\t\tvar isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );\n\t\t\tif ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );\n\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\n\t\t\tif ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {\n\n\t\t\t\tthrow new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );\n\n\t\t\t}\n\n\t\t\t// upload an empty depth texture with framebuffer size\n\t\t\tif ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||\n\t\t\t\t\trenderTarget.depthTexture.image.width !== renderTarget.width ||\n\t\t\t\t\trenderTarget.depthTexture.image.height !== renderTarget.height ) {\n\n\t\t\t\trenderTarget.depthTexture.image.width = renderTarget.width;\n\t\t\t\trenderTarget.depthTexture.image.height = renderTarget.height;\n\t\t\t\trenderTarget.depthTexture.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tsetTexture2D( renderTarget.depthTexture, 0 );\n\n\t\t\tvar webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;\n\n\t\t\tif ( renderTarget.depthTexture.format === DepthFormat ) {\n\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );\n\n\t\t\t} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {\n\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );\n\n\t\t\t} else {\n\n\t\t\t\tthrow new Error( 'Unknown depthTexture format' );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Setup GL resources for a non-texture depth buffer\n\t\tfunction setupDepthRenderbuffer( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\n\t\t\tvar isCube = ( renderTarget.isWebGLRenderTargetCube === true );\n\n\t\t\tif ( renderTarget.depthTexture ) {\n\n\t\t\t\tif ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );\n\n\t\t\t\tsetupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );\n\n\t\t\t} else {\n\n\t\t\t\tif ( isCube ) {\n\n\t\t\t\t\trenderTargetProperties.__webglDepthbuffer = [];\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );\n\t\t\t\t\t\trenderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();\n\t\t\t\t\t\tsetupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );\n\t\t\t\t\trenderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();\n\t\t\t\t\tsetupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );\n\n\t\t}\n\n\t\t// Set up GL resources for the render target\n\t\tfunction setupRenderTarget( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\n\t\t\trenderTarget.addEventListener( 'dispose', onRenderTargetDispose );\n\n\t\t\ttextureProperties.__webglTexture = _gl.createTexture();\n\n\t\t\tinfo.memory.textures ++;\n\n\t\t\tvar isCube = ( renderTarget.isWebGLRenderTargetCube === true );\n\t\t\tvar isTargetPowerOfTwo = isPowerOfTwo( renderTarget );\n\n\t\t\t// Setup framebuffer\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\trenderTargetProperties.__webglFramebuffer = [];\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\trenderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\trenderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();\n\n\t\t\t}\n\n\t\t\t// Setup color buffer\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );\n\t\t\t\tsetTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\tsetupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );\n\n\t\t\t\t}\n\n\t\t\t\tif ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) {\n\n\t\t\t\t\tgenerateMipmap( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, renderTarget.width, renderTarget.height );\n\n\t\t\t\t}\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, null );\n\n\t\t\t} else {\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\t\t\t\tsetTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );\n\t\t\t\tsetupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );\n\n\t\t\t\tif ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) {\n\n\t\t\t\t\tgenerateMipmap( _gl.TEXTURE_2D, renderTarget.texture, renderTarget.width, renderTarget.height );\n\n\t\t\t\t}\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_2D, null );\n\n\t\t\t}\n\n\t\t\t// Setup depth and stencil buffers\n\n\t\t\tif ( renderTarget.depthBuffer ) {\n\n\t\t\t\tsetupDepthRenderbuffer( renderTarget );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction updateRenderTargetMipmap( renderTarget ) {\n\n\t\t\tvar texture = renderTarget.texture;\n\t\t\tvar isTargetPowerOfTwo = isPowerOfTwo( renderTarget );\n\n\t\t\tif ( textureNeedsGenerateMipmaps( texture, isTargetPowerOfTwo ) ) {\n\n\t\t\t\tvar target = renderTarget.isWebGLRenderTargetCube ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;\n\t\t\t\tvar webglTexture = properties.get( texture ).__webglTexture;\n\n\t\t\t\tstate.bindTexture( target, webglTexture );\n\t\t\t\tgenerateMipmap( target, texture, renderTarget.width, renderTarget.height );\n\t\t\t\tstate.bindTexture( target, null );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction updateVideoTexture( texture ) {\n\n\t\t\tvar id = texture.id;\n\t\t\tvar frame = info.render.frame;\n\n\t\t\t// Check the last frame we updated the VideoTexture\n\n\t\t\tif ( _videoTextures[ id ] !== frame ) {\n\n\t\t\t\t_videoTextures[ id ] = frame;\n\t\t\t\ttexture.update();\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.setTexture2D = setTexture2D;\n\t\tthis.setTextureCube = setTextureCube;\n\t\tthis.setTextureCubeDynamic = setTextureCubeDynamic;\n\t\tthis.setupRenderTarget = setupRenderTarget;\n\t\tthis.updateRenderTargetMipmap = updateRenderTargetMipmap;\n\n\t}\n\n\t/**\n\t * @author thespite / http://www.twitter.com/thespite\n\t */\n\n\tfunction WebGLUtils( gl, extensions, capabilities ) {\n\n\t\tfunction convert( p ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( p === RepeatWrapping ) return gl.REPEAT;\n\t\t\tif ( p === ClampToEdgeWrapping ) return gl.CLAMP_TO_EDGE;\n\t\t\tif ( p === MirroredRepeatWrapping ) return gl.MIRRORED_REPEAT;\n\n\t\t\tif ( p === NearestFilter ) return gl.NEAREST;\n\t\t\tif ( p === NearestMipMapNearestFilter ) return gl.NEAREST_MIPMAP_NEAREST;\n\t\t\tif ( p === NearestMipMapLinearFilter ) return gl.NEAREST_MIPMAP_LINEAR;\n\n\t\t\tif ( p === LinearFilter ) return gl.LINEAR;\n\t\t\tif ( p === LinearMipMapNearestFilter ) return gl.LINEAR_MIPMAP_NEAREST;\n\t\t\tif ( p === LinearMipMapLinearFilter ) return gl.LINEAR_MIPMAP_LINEAR;\n\n\t\t\tif ( p === UnsignedByteType ) return gl.UNSIGNED_BYTE;\n\t\t\tif ( p === UnsignedShort4444Type ) return gl.UNSIGNED_SHORT_4_4_4_4;\n\t\t\tif ( p === UnsignedShort5551Type ) return gl.UNSIGNED_SHORT_5_5_5_1;\n\t\t\tif ( p === UnsignedShort565Type ) return gl.UNSIGNED_SHORT_5_6_5;\n\n\t\t\tif ( p === ByteType ) return gl.BYTE;\n\t\t\tif ( p === ShortType ) return gl.SHORT;\n\t\t\tif ( p === UnsignedShortType ) return gl.UNSIGNED_SHORT;\n\t\t\tif ( p === IntType ) return gl.INT;\n\t\t\tif ( p === UnsignedIntType ) return gl.UNSIGNED_INT;\n\t\t\tif ( p === FloatType ) return gl.FLOAT;\n\n\t\t\tif ( p === HalfFloatType ) {\n\n\t\t\t\tif ( capabilities.isWebGL2 ) return gl.HALF_FLOAT;\n\n\t\t\t\textension = extensions.get( 'OES_texture_half_float' );\n\n\t\t\t\tif ( extension !== null ) return extension.HALF_FLOAT_OES;\n\n\t\t\t}\n\n\t\t\tif ( p === AlphaFormat ) return gl.ALPHA;\n\t\t\tif ( p === RGBFormat ) return gl.RGB;\n\t\t\tif ( p === RGBAFormat ) return gl.RGBA;\n\t\t\tif ( p === LuminanceFormat ) return gl.LUMINANCE;\n\t\t\tif ( p === LuminanceAlphaFormat ) return gl.LUMINANCE_ALPHA;\n\t\t\tif ( p === DepthFormat ) return gl.DEPTH_COMPONENT;\n\t\t\tif ( p === DepthStencilFormat ) return gl.DEPTH_STENCIL;\n\n\t\t\tif ( p === AddEquation ) return gl.FUNC_ADD;\n\t\t\tif ( p === SubtractEquation ) return gl.FUNC_SUBTRACT;\n\t\t\tif ( p === ReverseSubtractEquation ) return gl.FUNC_REVERSE_SUBTRACT;\n\n\t\t\tif ( p === ZeroFactor ) return gl.ZERO;\n\t\t\tif ( p === OneFactor ) return gl.ONE;\n\t\t\tif ( p === SrcColorFactor ) return gl.SRC_COLOR;\n\t\t\tif ( p === OneMinusSrcColorFactor ) return gl.ONE_MINUS_SRC_COLOR;\n\t\t\tif ( p === SrcAlphaFactor ) return gl.SRC_ALPHA;\n\t\t\tif ( p === OneMinusSrcAlphaFactor ) return gl.ONE_MINUS_SRC_ALPHA;\n\t\t\tif ( p === DstAlphaFactor ) return gl.DST_ALPHA;\n\t\t\tif ( p === OneMinusDstAlphaFactor ) return gl.ONE_MINUS_DST_ALPHA;\n\n\t\t\tif ( p === DstColorFactor ) return gl.DST_COLOR;\n\t\t\tif ( p === OneMinusDstColorFactor ) return gl.ONE_MINUS_DST_COLOR;\n\t\t\tif ( p === SrcAlphaSaturateFactor ) return gl.SRC_ALPHA_SATURATE;\n\n\t\t\tif ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||\n\t\t\t\tp === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_s3tc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||\n\t\t\t\tp === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;\n\t\t\t\t\tif ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;\n\t\t\t\t\tif ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;\n\t\t\t\t\tif ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === RGB_ETC1_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_etc1' );\n\n\t\t\t\tif ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;\n\n\t\t\t}\n\n\t\t\tif ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||\n\t\t\t\tp === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||\n\t\t\t\tp === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||\n\t\t\t\tp === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||\n\t\t\t\tp === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_astc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\treturn p;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === MinEquation || p === MaxEquation ) {\n\n\t\t\t\tif ( capabilities.isWebGL2 ) {\n\n\t\t\t\t\tif ( p === MinEquation ) return gl.MIN;\n\t\t\t\t\tif ( p === MaxEquation ) return gl.MAX;\n\n\t\t\t\t}\n\n\t\t\t\textension = extensions.get( 'EXT_blend_minmax' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === MinEquation ) return extension.MIN_EXT;\n\t\t\t\t\tif ( p === MaxEquation ) return extension.MAX_EXT;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === UnsignedInt248Type ) {\n\n\t\t\t\tif ( capabilities.isWebGL2 ) return gl.UNSIGNED_INT_24_8;\n\n\t\t\t\textension = extensions.get( 'WEBGL_depth_texture' );\n\n\t\t\t\tif ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;\n\n\t\t\t}\n\n\t\t\treturn 0;\n\n\t\t}\n\n\t\treturn { convert: convert };\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Group() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Group';\n\n\t}\n\n\tGroup.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Group,\n\n\t\tisGroup: true\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author greggman / http://games.greggman.com/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author tschw\n\t */\n\n\tfunction PerspectiveCamera( fov, aspect, near, far ) {\n\n\t\tCamera.call( this );\n\n\t\tthis.type = 'PerspectiveCamera';\n\n\t\tthis.fov = fov !== undefined ? fov : 50;\n\t\tthis.zoom = 1;\n\n\t\tthis.near = near !== undefined ? near : 0.1;\n\t\tthis.far = far !== undefined ? far : 2000;\n\t\tthis.focus = 10;\n\n\t\tthis.aspect = aspect !== undefined ? aspect : 1;\n\t\tthis.view = null;\n\n\t\tthis.filmGauge = 35;\t// width of the film (default in millimeters)\n\t\tthis.filmOffset = 0;\t// horizontal film offset (same unit as gauge)\n\n\t\tthis.updateProjectionMatrix();\n\n\t}\n\n\tPerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {\n\n\t\tconstructor: PerspectiveCamera,\n\n\t\tisPerspectiveCamera: true,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tCamera.prototype.copy.call( this, source, recursive );\n\n\t\t\tthis.fov = source.fov;\n\t\t\tthis.zoom = source.zoom;\n\n\t\t\tthis.near = source.near;\n\t\t\tthis.far = source.far;\n\t\t\tthis.focus = source.focus;\n\n\t\t\tthis.aspect = source.aspect;\n\t\t\tthis.view = source.view === null ? null : Object.assign( {}, source.view );\n\n\t\t\tthis.filmGauge = source.filmGauge;\n\t\t\tthis.filmOffset = source.filmOffset;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t/**\n\t\t * Sets the FOV by focal length in respect to the current .filmGauge.\n\t\t *\n\t\t * The default film gauge is 35, so that the focal length can be specified for\n\t\t * a 35mm (full frame) camera.\n\t\t *\n\t\t * Values for focal length and film gauge must have the same unit.\n\t\t */\n\t\tsetFocalLength: function ( focalLength ) {\n\n\t\t\t// see http://www.bobatkins.com/photography/technical/field_of_view.html\n\t\t\tvar vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;\n\n\t\t\tthis.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\t/**\n\t\t * Calculates the focal length from the current .fov and .filmGauge.\n\t\t */\n\t\tgetFocalLength: function () {\n\n\t\t\tvar vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );\n\n\t\t\treturn 0.5 * this.getFilmHeight() / vExtentSlope;\n\n\t\t},\n\n\t\tgetEffectiveFOV: function () {\n\n\t\t\treturn _Math.RAD2DEG * 2 * Math.atan(\n\t\t\t\tMath.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );\n\n\t\t},\n\n\t\tgetFilmWidth: function () {\n\n\t\t\t// film not completely covered in portrait format (aspect < 1)\n\t\t\treturn this.filmGauge * Math.min( this.aspect, 1 );\n\n\t\t},\n\n\t\tgetFilmHeight: function () {\n\n\t\t\t// film not completely covered in landscape format (aspect > 1)\n\t\t\treturn this.filmGauge / Math.max( this.aspect, 1 );\n\n\t\t},\n\n\t\t/**\n\t\t * Sets an offset in a larger frustum. This is useful for multi-window or\n\t\t * multi-monitor/multi-machine setups.\n\t\t *\n\t\t * For example, if you have 3x2 monitors and each monitor is 1920x1080 and\n\t\t * the monitors are in grid like this\n\t\t *\n\t\t * +---+---+---+\n\t\t * | A | B | C |\n\t\t * +---+---+---+\n\t\t * | D | E | F |\n\t\t * +---+---+---+\n\t\t *\n\t\t * then for each monitor you would call it like this\n\t\t *\n\t\t * var w = 1920;\n\t\t * var h = 1080;\n\t\t * var fullWidth = w * 3;\n\t\t * var fullHeight = h * 2;\n\t\t *\n\t\t * --A--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );\n\t\t * --B--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );\n\t\t * --C--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );\n\t\t * --D--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );\n\t\t * --E--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );\n\t\t * --F--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );\n\t\t *\n\t\t * Note there is no reason monitors have to be the same size or in a grid.\n\t\t */\n\t\tsetViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {\n\n\t\t\tthis.aspect = fullWidth / fullHeight;\n\n\t\t\tif ( this.view === null ) {\n\n\t\t\t\tthis.view = {\n\t\t\t\t\tenabled: true,\n\t\t\t\t\tfullWidth: 1,\n\t\t\t\t\tfullHeight: 1,\n\t\t\t\t\toffsetX: 0,\n\t\t\t\t\toffsetY: 0,\n\t\t\t\t\twidth: 1,\n\t\t\t\t\theight: 1\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tthis.view.enabled = true;\n\t\t\tthis.view.fullWidth = fullWidth;\n\t\t\tthis.view.fullHeight = fullHeight;\n\t\t\tthis.view.offsetX = x;\n\t\t\tthis.view.offsetY = y;\n\t\t\tthis.view.width = width;\n\t\t\tthis.view.height = height;\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tclearViewOffset: function () {\n\n\t\t\tif ( this.view !== null ) {\n\n\t\t\t\tthis.view.enabled = false;\n\n\t\t\t}\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tupdateProjectionMatrix: function () {\n\n\t\t\tvar near = this.near,\n\t\t\t\ttop = near * Math.tan(\n\t\t\t\t\t_Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,\n\t\t\t\theight = 2 * top,\n\t\t\t\twidth = this.aspect * height,\n\t\t\t\tleft = - 0.5 * width,\n\t\t\t\tview = this.view;\n\n\t\t\tif ( this.view !== null && this.view.enabled ) {\n\n\t\t\t\tvar fullWidth = view.fullWidth,\n\t\t\t\t\tfullHeight = view.fullHeight;\n\n\t\t\t\tleft += view.offsetX * width / fullWidth;\n\t\t\t\ttop -= view.offsetY * height / fullHeight;\n\t\t\t\twidth *= view.width / fullWidth;\n\t\t\t\theight *= view.height / fullHeight;\n\n\t\t\t}\n\n\t\t\tvar skew = this.filmOffset;\n\t\t\tif ( skew !== 0 ) left += near * skew / this.getFilmWidth();\n\n\t\t\tthis.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.fov = this.fov;\n\t\t\tdata.object.zoom = this.zoom;\n\n\t\t\tdata.object.near = this.near;\n\t\t\tdata.object.far = this.far;\n\t\t\tdata.object.focus = this.focus;\n\n\t\t\tdata.object.aspect = this.aspect;\n\n\t\t\tif ( this.view !== null ) data.object.view = Object.assign( {}, this.view );\n\n\t\t\tdata.object.filmGauge = this.filmGauge;\n\t\t\tdata.object.filmOffset = this.filmOffset;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction ArrayCamera( array ) {\n\n\t\tPerspectiveCamera.call( this );\n\n\t\tthis.cameras = array || [];\n\n\t}\n\n\tArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {\n\n\t\tconstructor: ArrayCamera,\n\n\t\tisArrayCamera: true\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebVRManager( renderer ) {\n\n\t\tvar scope = this;\n\n\t\tvar device = null;\n\t\tvar frameData = null;\n\n\t\tvar poseTarget = null;\n\n\t\tvar controllers = [];\n\t\tvar standingMatrix = new Matrix4();\n\t\tvar standingMatrixInverse = new Matrix4();\n\n\t\tif ( typeof window !== 'undefined' && 'VRFrameData' in window ) {\n\n\t\t\tframeData = new window.VRFrameData();\n\t\t\twindow.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );\n\n\t\t}\n\n\t\tvar matrixWorldInverse = new Matrix4();\n\t\tvar tempQuaternion = new Quaternion();\n\t\tvar tempPosition = new Vector3();\n\n\t\tvar cameraL = new PerspectiveCamera();\n\t\tcameraL.bounds = new Vector4( 0.0, 0.0, 0.5, 1.0 );\n\t\tcameraL.layers.enable( 1 );\n\n\t\tvar cameraR = new PerspectiveCamera();\n\t\tcameraR.bounds = new Vector4( 0.5, 0.0, 0.5, 1.0 );\n\t\tcameraR.layers.enable( 2 );\n\n\t\tvar cameraVR = new ArrayCamera( [ cameraL, cameraR ] );\n\t\tcameraVR.layers.enable( 1 );\n\t\tcameraVR.layers.enable( 2 );\n\n\t\t//\n\n\t\tfunction isPresenting() {\n\n\t\t\treturn device !== null && device.isPresenting === true;\n\n\t\t}\n\n\t\tvar currentSize, currentPixelRatio;\n\n\t\tfunction onVRDisplayPresentChange() {\n\n\t\t\tif ( isPresenting() ) {\n\n\t\t\t\tvar eyeParameters = device.getEyeParameters( 'left' );\n\t\t\t\tvar renderWidth = eyeParameters.renderWidth;\n\t\t\t\tvar renderHeight = eyeParameters.renderHeight;\n\n\t\t\t\tcurrentPixelRatio = renderer.getPixelRatio();\n\t\t\t\tcurrentSize = renderer.getSize();\n\n\t\t\t\trenderer.setDrawingBufferSize( renderWidth * 2, renderHeight, 1 );\n\n\t\t\t\tanimation.start();\n\n\t\t\t} else if ( scope.enabled ) {\n\n\t\t\t\trenderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );\n\n\t\t\t\tanimation.stop();\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tvar triggers = [];\n\n\t\tfunction findGamepad( id ) {\n\n\t\t\tvar gamepads = navigator.getGamepads && navigator.getGamepads();\n\n\t\t\tfor ( var i = 0, j = 0, l = gamepads.length; i < l; i ++ ) {\n\n\t\t\t\tvar gamepad = gamepads[ i ];\n\n\t\t\t\tif ( gamepad && ( gamepad.id === 'Daydream Controller' ||\n\t\t\t\t\tgamepad.id === 'Gear VR Controller' || gamepad.id === 'Oculus Go Controller' ||\n\t\t\t\t\tgamepad.id === 'OpenVR Gamepad' || gamepad.id.startsWith( 'Oculus Touch' ) ||\n\t\t\t\t\tgamepad.id.startsWith( 'Spatial Controller' ) ) ) {\n\n\t\t\t\t\tif ( j === id ) return gamepad;\n\n\t\t\t\t\tj ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction updateControllers() {\n\n\t\t\tfor ( var i = 0; i < controllers.length; i ++ ) {\n\n\t\t\t\tvar controller = controllers[ i ];\n\n\t\t\t\tvar gamepad = findGamepad( i );\n\n\t\t\t\tif ( gamepad !== undefined && gamepad.pose !== undefined ) {\n\n\t\t\t\t\tif ( gamepad.pose === null ) return;\n\n\t\t\t\t\t// Pose\n\n\t\t\t\t\tvar pose = gamepad.pose;\n\n\t\t\t\t\tif ( pose.hasPosition === false ) controller.position.set( 0.2, - 0.6, - 0.05 );\n\n\t\t\t\t\tif ( pose.position !== null ) controller.position.fromArray( pose.position );\n\t\t\t\t\tif ( pose.orientation !== null ) controller.quaternion.fromArray( pose.orientation );\n\t\t\t\t\tcontroller.matrix.compose( controller.position, controller.quaternion, controller.scale );\n\t\t\t\t\tcontroller.matrix.premultiply( standingMatrix );\n\t\t\t\t\tcontroller.matrix.decompose( controller.position, controller.quaternion, controller.scale );\n\t\t\t\t\tcontroller.matrixWorldNeedsUpdate = true;\n\t\t\t\t\tcontroller.visible = true;\n\n\t\t\t\t\t// Trigger\n\n\t\t\t\t\tvar buttonId = gamepad.id === 'Daydream Controller' ? 0 : 1;\n\n\t\t\t\t\tif ( triggers[ i ] !== gamepad.buttons[ buttonId ].pressed ) {\n\n\t\t\t\t\t\ttriggers[ i ] = gamepad.buttons[ buttonId ].pressed;\n\n\t\t\t\t\t\tif ( triggers[ i ] === true ) {\n\n\t\t\t\t\t\t\tcontroller.dispatchEvent( { type: 'selectstart' } );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tcontroller.dispatchEvent( { type: 'selectend' } );\n\t\t\t\t\t\t\tcontroller.dispatchEvent( { type: 'select' } );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcontroller.visible = false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tthis.enabled = false;\n\t\tthis.userHeight = 1.6;\n\n\t\tthis.getController = function ( id ) {\n\n\t\t\tvar controller = controllers[ id ];\n\n\t\t\tif ( controller === undefined ) {\n\n\t\t\t\tcontroller = new Group();\n\t\t\t\tcontroller.matrixAutoUpdate = false;\n\t\t\t\tcontroller.visible = false;\n\n\t\t\t\tcontrollers[ id ] = controller;\n\n\t\t\t}\n\n\t\t\treturn controller;\n\n\t\t};\n\n\t\tthis.getDevice = function () {\n\n\t\t\treturn device;\n\n\t\t};\n\n\t\tthis.setDevice = function ( value ) {\n\n\t\t\tif ( value !== undefined ) device = value;\n\n\t\t\tanimation.setContext( value );\n\n\t\t};\n\n\t\tthis.setPoseTarget = function ( object ) {\n\n\t\t\tif ( object !== undefined ) poseTarget = object;\n\n\t\t};\n\n\t\tthis.getCamera = function ( camera ) {\n\n\t\t\tif ( device === null ) {\n\n\t\t\t\tcamera.position.set( 0, scope.userHeight, 0 );\n\t\t\t\treturn camera;\n\n\t\t\t}\n\n\t\t\tdevice.depthNear = camera.near;\n\t\t\tdevice.depthFar = camera.far;\n\n\t\t\tdevice.getFrameData( frameData );\n\n\t\t\t//\n\n\t\t\tvar stageParameters = device.stageParameters;\n\n\t\t\tif ( stageParameters ) {\n\n\t\t\t\tstandingMatrix.fromArray( stageParameters.sittingToStandingTransform );\n\n\t\t\t} else {\n\n\t\t\t\tstandingMatrix.makeTranslation( 0, scope.userHeight, 0 );\n\n\t\t\t}\n\n\n\t\t\tvar pose = frameData.pose;\n\t\t\tvar poseObject = poseTarget !== null ? poseTarget : camera;\n\n\t\t\t// We want to manipulate poseObject by its position and quaternion components since users may rely on them.\n\t\t\tposeObject.matrix.copy( standingMatrix );\n\t\t\tposeObject.matrix.decompose( poseObject.position, poseObject.quaternion, poseObject.scale );\n\n\t\t\tif ( pose.orientation !== null ) {\n\n\t\t\t\ttempQuaternion.fromArray( pose.orientation );\n\t\t\t\tposeObject.quaternion.multiply( tempQuaternion );\n\n\t\t\t}\n\n\t\t\tif ( pose.position !== null ) {\n\n\t\t\t\ttempQuaternion.setFromRotationMatrix( standingMatrix );\n\t\t\t\ttempPosition.fromArray( pose.position );\n\t\t\t\ttempPosition.applyQuaternion( tempQuaternion );\n\t\t\t\tposeObject.position.add( tempPosition );\n\n\t\t\t}\n\n\t\t\tposeObject.updateMatrixWorld();\n\n\t\t\tif ( device.isPresenting === false ) return camera;\n\n\t\t\t//\n\n\t\t\tcameraL.near = camera.near;\n\t\t\tcameraR.near = camera.near;\n\n\t\t\tcameraL.far = camera.far;\n\t\t\tcameraR.far = camera.far;\n\n\t\t\tcameraVR.matrixWorld.copy( camera.matrixWorld );\n\t\t\tcameraVR.matrixWorldInverse.copy( camera.matrixWorldInverse );\n\n\t\t\tcameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );\n\t\t\tcameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );\n\n\t\t\t// TODO (mrdoob) Double check this code\n\n\t\t\tstandingMatrixInverse.getInverse( standingMatrix );\n\n\t\t\tcameraL.matrixWorldInverse.multiply( standingMatrixInverse );\n\t\t\tcameraR.matrixWorldInverse.multiply( standingMatrixInverse );\n\n\t\t\tvar parent = poseObject.parent;\n\n\t\t\tif ( parent !== null ) {\n\n\t\t\t\tmatrixWorldInverse.getInverse( parent.matrixWorld );\n\n\t\t\t\tcameraL.matrixWorldInverse.multiply( matrixWorldInverse );\n\t\t\t\tcameraR.matrixWorldInverse.multiply( matrixWorldInverse );\n\n\t\t\t}\n\n\t\t\t// envMap and Mirror needs camera.matrixWorld\n\n\t\t\tcameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );\n\t\t\tcameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );\n\n\t\t\tcameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );\n\t\t\tcameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );\n\n\t\t\t// HACK (mrdoob)\n\t\t\t// https://github.com/w3c/webvr/issues/203\n\n\t\t\tcameraVR.projectionMatrix.copy( cameraL.projectionMatrix );\n\n\t\t\t//\n\n\t\t\tvar layers = device.getLayers();\n\n\t\t\tif ( layers.length ) {\n\n\t\t\t\tvar layer = layers[ 0 ];\n\n\t\t\t\tif ( layer.leftBounds !== null && layer.leftBounds.length === 4 ) {\n\n\t\t\t\t\tcameraL.bounds.fromArray( layer.leftBounds );\n\n\t\t\t\t}\n\n\t\t\t\tif ( layer.rightBounds !== null && layer.rightBounds.length === 4 ) {\n\n\t\t\t\t\tcameraR.bounds.fromArray( layer.rightBounds );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tupdateControllers();\n\n\t\t\treturn cameraVR;\n\n\t\t};\n\n\t\tthis.getStandingMatrix = function () {\n\n\t\t\treturn standingMatrix;\n\n\t\t};\n\n\t\tthis.isPresenting = isPresenting;\n\n\t\t// Animation Loop\n\n\t\tvar animation = new WebGLAnimation();\n\n\t\tthis.setAnimationLoop = function ( callback ) {\n\n\t\t\tanimation.setAnimationLoop( callback );\n\n\t\t};\n\n\t\tthis.submitFrame = function () {\n\n\t\t\tif ( isPresenting() ) device.submitFrame();\n\n\t\t};\n\n\t\tthis.dispose = function () {\n\n\t\t\tif ( typeof window !== 'undefined' ) {\n\n\t\t\t\twindow.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange );\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebXRManager( renderer ) {\n\n\t\tvar gl = renderer.context;\n\n\t\tvar device = null;\n\t\tvar session = null;\n\n\t\tvar frameOfRef = null;\n\n\t\tvar pose = null;\n\n\t\tvar controllers = [];\n\t\tvar inputSources = [];\n\n\t\tfunction isPresenting() {\n\n\t\t\treturn session !== null && frameOfRef !== null;\n\n\n\t\t}\n\n\t\t//\n\n\t\tvar cameraL = new PerspectiveCamera();\n\t\tcameraL.layers.enable( 1 );\n\t\tcameraL.viewport = new Vector4();\n\n\t\tvar cameraR = new PerspectiveCamera();\n\t\tcameraR.layers.enable( 2 );\n\t\tcameraR.viewport = new Vector4();\n\n\t\tvar cameraVR = new ArrayCamera( [ cameraL, cameraR ] );\n\t\tcameraVR.layers.enable( 1 );\n\t\tcameraVR.layers.enable( 2 );\n\n\t\t//\n\n\t\tthis.enabled = false;\n\n\t\tthis.getController = function ( id ) {\n\n\t\t\tvar controller = controllers[ id ];\n\n\t\t\tif ( controller === undefined ) {\n\n\t\t\t\tcontroller = new Group();\n\t\t\t\tcontroller.matrixAutoUpdate = false;\n\t\t\t\tcontroller.visible = false;\n\n\t\t\t\tcontrollers[ id ] = controller;\n\n\t\t\t}\n\n\t\t\treturn controller;\n\n\t\t};\n\n\t\tthis.getDevice = function () {\n\n\t\t\treturn device;\n\n\t\t};\n\n\t\tthis.setDevice = function ( value ) {\n\n\t\t\tif ( value !== undefined ) device = value;\n\t\t\tif ( value instanceof XRDevice ) gl.setCompatibleXRDevice( value );\n\n\t\t};\n\n\t\t//\n\n\t\tfunction onSessionEvent( event ) {\n\n\t\t\tvar controller = controllers[ inputSources.indexOf( event.inputSource ) ];\n\t\t\tif ( controller ) controller.dispatchEvent( { type: event.type } );\n\n\t\t}\n\n\t\tfunction onSessionEnd() {\n\n\t\t\trenderer.setFramebuffer( null );\n\t\t\tanimation.stop();\n\n\t\t}\n\n\t\tthis.setSession = function ( value, options ) {\n\n\t\t\tsession = value;\n\n\t\t\tif ( session !== null ) {\n\n\t\t\t\tsession.addEventListener( 'select', onSessionEvent );\n\t\t\t\tsession.addEventListener( 'selectstart', onSessionEvent );\n\t\t\t\tsession.addEventListener( 'selectend', onSessionEvent );\n\t\t\t\tsession.addEventListener( 'end', onSessionEnd );\n\n\t\t\t\tsession.baseLayer = new XRWebGLLayer( session, gl );\n\t\t\t\tsession.requestFrameOfReference( options.frameOfReferenceType ).then( function ( value ) {\n\n\t\t\t\t\tframeOfRef = value;\n\n\t\t\t\t\trenderer.setFramebuffer( session.baseLayer.framebuffer );\n\n\t\t\t\t\tanimation.setContext( session );\n\t\t\t\t\tanimation.start();\n\n\t\t\t\t} );\n\n\t\t\t\t//\n\n\t\t\t\tinputSources = session.getInputSources();\n\n\t\t\t\tsession.addEventListener( 'inputsourceschange', function () {\n\n\t\t\t\t\tinputSources = session.getInputSources();\n\t\t\t\t\tconsole.log( inputSources );\n\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t};\n\n\t\tfunction updateCamera( camera, parent ) {\n\n\t\t\tif ( parent === null ) {\n\n\t\t\t\tcamera.matrixWorld.copy( camera.matrix );\n\n\t\t\t} else {\n\n\t\t\t\tcamera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix );\n\n\t\t\t}\n\n\t\t\tcamera.matrixWorldInverse.getInverse( camera.matrixWorld );\n\n\t\t}\n\n\t\tthis.getCamera = function ( camera ) {\n\n\t\t\tif ( isPresenting() ) {\n\n\t\t\t\tvar parent = camera.parent;\n\t\t\t\tvar cameras = cameraVR.cameras;\n\n\t\t\t\t// apply camera.parent to cameraVR\n\n\t\t\t\tupdateCamera( cameraVR, parent );\n\n\t\t\t\tfor ( var i = 0; i < cameras.length; i ++ ) {\n\n\t\t\t\t\tupdateCamera( cameras[ i ], parent );\n\n\t\t\t\t}\n\n\t\t\t\t// update camera and its children\n\n\t\t\t\tcamera.matrixWorld.copy( cameraVR.matrixWorld );\n\n\t\t\t\tvar children = camera.children;\n\n\t\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\t\tchildren[ i ].updateMatrixWorld( true );\n\n\t\t\t\t}\n\n\t\t\t\treturn cameraVR;\n\n\t\t\t}\n\n\t\t\treturn camera;\n\n\t\t};\n\n\t\tthis.isPresenting = isPresenting;\n\n\t\t// Animation Loop\n\n\t\tvar onAnimationFrameCallback = null;\n\n\t\tfunction onAnimationFrame( time, frame ) {\n\n\t\t\tpose = frame.getDevicePose( frameOfRef );\n\n\t\t\tif ( pose !== null ) {\n\n\t\t\t\tvar layer = session.baseLayer;\n\t\t\t\tvar views = frame.views;\n\n\t\t\t\tfor ( var i = 0; i < views.length; i ++ ) {\n\n\t\t\t\t\tvar view = views[ i ];\n\t\t\t\t\tvar viewport = layer.getViewport( view );\n\t\t\t\t\tvar viewMatrix = pose.getViewMatrix( view );\n\n\t\t\t\t\tvar camera = cameraVR.cameras[ i ];\n\t\t\t\t\tcamera.matrix.fromArray( viewMatrix ).getInverse( camera.matrix );\n\t\t\t\t\tcamera.projectionMatrix.fromArray( view.projectionMatrix );\n\t\t\t\t\tcamera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height );\n\n\t\t\t\t\tif ( i === 0 ) {\n\n\t\t\t\t\t\tcameraVR.matrix.copy( camera.matrix );\n\n\t\t\t\t\t\t// HACK (mrdoob)\n\t\t\t\t\t\t// https://github.com/w3c/webvr/issues/203\n\n\t\t\t\t\t\tcameraVR.projectionMatrix.copy( camera.projectionMatrix );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tfor ( var i = 0; i < controllers.length; i ++ ) {\n\n\t\t\t\tvar controller = controllers[ i ];\n\n\t\t\t\tvar inputSource = inputSources[ i ];\n\n\t\t\t\tif ( inputSource ) {\n\n\t\t\t\t\tvar inputPose = frame.getInputPose( inputSource, frameOfRef );\n\n\t\t\t\t\tif ( inputPose !== null ) {\n\n\t\t\t\t\t\tcontroller.matrix.elements = inputPose.pointerMatrix;\n\t\t\t\t\t\tcontroller.matrix.decompose( controller.position, controller.rotation, controller.scale );\n\t\t\t\t\t\tcontroller.visible = true;\n\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tcontroller.visible = false;\n\n\t\t\t}\n\n\t\t\tif ( onAnimationFrameCallback ) onAnimationFrameCallback( time );\n\n\t\t}\n\n\t\tvar animation = new WebGLAnimation();\n\t\tanimation.setAnimationLoop( onAnimationFrame );\n\n\t\tthis.setAnimationLoop = function ( callback ) {\n\n\t\t\tonAnimationFrameCallback = callback;\n\n\t\t};\n\n\t\tthis.dispose = function () {};\n\n\t\t// DEPRECATED\n\n\t\tthis.getStandingMatrix = function () {\n\n\t\t\tconsole.warn( 'THREE.WebXRManager: getStandingMatrix() is no longer needed.' );\n\t\t\treturn new THREE.Matrix4();\n\n\t\t};\n\n\t\tthis.submitFrame = function () {};\n\n\t}\n\n\t/**\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t * @author tschw\n\t */\n\n\tfunction WebGLRenderer( parameters ) {\n\n\t\tconsole.log( 'THREE.WebGLRenderer', REVISION );\n\n\t\tparameters = parameters || {};\n\n\t\tvar _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),\n\t\t\t_context = parameters.context !== undefined ? parameters.context : null,\n\n\t\t\t_alpha = parameters.alpha !== undefined ? parameters.alpha : false,\n\t\t\t_depth = parameters.depth !== undefined ? parameters.depth : true,\n\t\t\t_stencil = parameters.stencil !== undefined ? parameters.stencil : true,\n\t\t\t_antialias = parameters.antialias !== undefined ? parameters.antialias : false,\n\t\t\t_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,\n\t\t\t_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,\n\t\t\t_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default';\n\n\t\tvar currentRenderList = null;\n\t\tvar currentRenderState = null;\n\n\t\t// public properties\n\n\t\tthis.domElement = _canvas;\n\t\tthis.context = null;\n\n\t\t// clearing\n\n\t\tthis.autoClear = true;\n\t\tthis.autoClearColor = true;\n\t\tthis.autoClearDepth = true;\n\t\tthis.autoClearStencil = true;\n\n\t\t// scene graph\n\n\t\tthis.sortObjects = true;\n\n\t\t// user-defined clipping\n\n\t\tthis.clippingPlanes = [];\n\t\tthis.localClippingEnabled = false;\n\n\t\t// physically based shading\n\n\t\tthis.gammaFactor = 2.0;\t// for backwards compatibility\n\t\tthis.gammaInput = false;\n\t\tthis.gammaOutput = false;\n\n\t\t// physical lights\n\n\t\tthis.physicallyCorrectLights = false;\n\n\t\t// tone mapping\n\n\t\tthis.toneMapping = LinearToneMapping;\n\t\tthis.toneMappingExposure = 1.0;\n\t\tthis.toneMappingWhitePoint = 1.0;\n\n\t\t// morphs\n\n\t\tthis.maxMorphTargets = 8;\n\t\tthis.maxMorphNormals = 4;\n\n\t\t// internal properties\n\n\t\tvar _this = this,\n\n\t\t\t_isContextLost = false,\n\n\t\t\t// internal state cache\n\n\t\t\t_framebuffer = null,\n\n\t\t\t_currentRenderTarget = null,\n\t\t\t_currentFramebuffer = null,\n\t\t\t_currentMaterialId = - 1,\n\n\t\t\t// geometry and program caching\n\n\t\t\t_currentGeometryProgram = {\n\t\t\t\tgeometry: null,\n\t\t\t\tprogram: null,\n\t\t\t\twireframe: false\n\t\t\t},\n\n\t\t\t_currentCamera = null,\n\t\t\t_currentArrayCamera = null,\n\n\t\t\t_currentViewport = new Vector4(),\n\t\t\t_currentScissor = new Vector4(),\n\t\t\t_currentScissorTest = null,\n\n\t\t\t//\n\n\t\t\t_usedTextureUnits = 0,\n\n\t\t\t//\n\n\t\t\t_width = _canvas.width,\n\t\t\t_height = _canvas.height,\n\n\t\t\t_pixelRatio = 1,\n\n\t\t\t_viewport = new Vector4( 0, 0, _width, _height ),\n\t\t\t_scissor = new Vector4( 0, 0, _width, _height ),\n\t\t\t_scissorTest = false,\n\n\t\t\t// frustum\n\n\t\t\t_frustum = new Frustum(),\n\n\t\t\t// clipping\n\n\t\t\t_clipping = new WebGLClipping(),\n\t\t\t_clippingEnabled = false,\n\t\t\t_localClippingEnabled = false,\n\n\t\t\t// camera matrices cache\n\n\t\t\t_projScreenMatrix = new Matrix4(),\n\n\t\t\t_vector3 = new Vector3();\n\n\t\tfunction getTargetPixelRatio() {\n\n\t\t\treturn _currentRenderTarget === null ? _pixelRatio : 1;\n\n\t\t}\n\n\t\t// initialize\n\n\t\tvar _gl;\n\n\t\ttry {\n\n\t\t\tvar contextAttributes = {\n\t\t\t\talpha: _alpha,\n\t\t\t\tdepth: _depth,\n\t\t\t\tstencil: _stencil,\n\t\t\t\tantialias: _antialias,\n\t\t\t\tpremultipliedAlpha: _premultipliedAlpha,\n\t\t\t\tpreserveDrawingBuffer: _preserveDrawingBuffer,\n\t\t\t\tpowerPreference: _powerPreference\n\t\t\t};\n\n\t\t\t// event listeners must be registered before WebGL context is created, see #12753\n\n\t\t\t_canvas.addEventListener( 'webglcontextlost', onContextLost, false );\n\t\t\t_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );\n\n\t\t\t_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );\n\n\t\t\tif ( _gl === null ) {\n\n\t\t\t\tif ( _canvas.getContext( 'webgl' ) !== null ) {\n\n\t\t\t\t\tthrow new Error( 'Error creating WebGL context with your selected attributes.' );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthrow new Error( 'Error creating WebGL context.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Some experimental-webgl implementations do not have getShaderPrecisionFormat\n\n\t\t\tif ( _gl.getShaderPrecisionFormat === undefined ) {\n\n\t\t\t\t_gl.getShaderPrecisionFormat = function () {\n\n\t\t\t\t\treturn { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t} catch ( error ) {\n\n\t\t\tconsole.error( 'THREE.WebGLRenderer: ' + error.message );\n\n\t\t}\n\n\t\tvar extensions, capabilities, state, info;\n\t\tvar properties, textures, attributes, geometries, objects;\n\t\tvar programCache, renderLists, renderStates;\n\n\t\tvar background, morphtargets, bufferRenderer, indexedBufferRenderer;\n\n\t\tvar utils;\n\n\t\tfunction initGLContext() {\n\n\t\t\textensions = new WebGLExtensions( _gl );\n\n\t\t\tcapabilities = new WebGLCapabilities( _gl, extensions, parameters );\n\n\t\t\tif ( ! capabilities.isWebGL2 ) {\n\n\t\t\t\textensions.get( 'WEBGL_depth_texture' );\n\t\t\t\textensions.get( 'OES_texture_float' );\n\t\t\t\textensions.get( 'OES_texture_half_float' );\n\t\t\t\textensions.get( 'OES_texture_half_float_linear' );\n\t\t\t\textensions.get( 'OES_standard_derivatives' );\n\t\t\t\textensions.get( 'OES_element_index_uint' );\n\t\t\t\textensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t}\n\n\t\t\textensions.get( 'OES_texture_float_linear' );\n\n\t\t\tutils = new WebGLUtils( _gl, extensions, capabilities );\n\n\t\t\tstate = new WebGLState( _gl, extensions, utils, capabilities );\n\t\t\tstate.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );\n\t\t\tstate.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );\n\n\t\t\tinfo = new WebGLInfo( _gl );\n\t\t\tproperties = new WebGLProperties();\n\t\t\ttextures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );\n\t\t\tattributes = new WebGLAttributes( _gl );\n\t\t\tgeometries = new WebGLGeometries( _gl, attributes, info );\n\t\t\tobjects = new WebGLObjects( geometries, info );\n\t\t\tmorphtargets = new WebGLMorphtargets( _gl );\n\t\t\tprogramCache = new WebGLPrograms( _this, extensions, capabilities );\n\t\t\trenderLists = new WebGLRenderLists();\n\t\t\trenderStates = new WebGLRenderStates();\n\n\t\t\tbackground = new WebGLBackground( _this, state, objects, _premultipliedAlpha );\n\n\t\t\tbufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities );\n\t\t\tindexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities );\n\n\t\t\tinfo.programs = programCache.programs;\n\n\t\t\t_this.context = _gl;\n\t\t\t_this.capabilities = capabilities;\n\t\t\t_this.extensions = extensions;\n\t\t\t_this.properties = properties;\n\t\t\t_this.renderLists = renderLists;\n\t\t\t_this.state = state;\n\t\t\t_this.info = info;\n\n\t\t}\n\n\t\tinitGLContext();\n\n\t\t// vr\n\n\t\tvar vr = ( 'xr' in navigator ) ? new WebXRManager( _this ) : new WebVRManager( _this );\n\n\t\tthis.vr = vr;\n\n\t\t// shadow map\n\n\t\tvar shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize );\n\n\t\tthis.shadowMap = shadowMap;\n\n\t\t// API\n\n\t\tthis.getContext = function () {\n\n\t\t\treturn _gl;\n\n\t\t};\n\n\t\tthis.getContextAttributes = function () {\n\n\t\t\treturn _gl.getContextAttributes();\n\n\t\t};\n\n\t\tthis.forceContextLoss = function () {\n\n\t\t\tvar extension = extensions.get( 'WEBGL_lose_context' );\n\t\t\tif ( extension ) extension.loseContext();\n\n\t\t};\n\n\t\tthis.forceContextRestore = function () {\n\n\t\t\tvar extension = extensions.get( 'WEBGL_lose_context' );\n\t\t\tif ( extension ) extension.restoreContext();\n\n\t\t};\n\n\t\tthis.getPixelRatio = function () {\n\n\t\t\treturn _pixelRatio;\n\n\t\t};\n\n\t\tthis.setPixelRatio = function ( value ) {\n\n\t\t\tif ( value === undefined ) return;\n\n\t\t\t_pixelRatio = value;\n\n\t\t\tthis.setSize( _width, _height, false );\n\n\t\t};\n\n\t\tthis.getSize = function () {\n\n\t\t\treturn {\n\t\t\t\twidth: _width,\n\t\t\t\theight: _height\n\t\t\t};\n\n\t\t};\n\n\t\tthis.setSize = function ( width, height, updateStyle ) {\n\n\t\t\tif ( vr.isPresenting() ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Can\\'t change size while VR device is presenting.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t_width = width;\n\t\t\t_height = height;\n\n\t\t\t_canvas.width = width * _pixelRatio;\n\t\t\t_canvas.height = height * _pixelRatio;\n\n\t\t\tif ( updateStyle !== false ) {\n\n\t\t\t\t_canvas.style.width = width + 'px';\n\t\t\t\t_canvas.style.height = height + 'px';\n\n\t\t\t}\n\n\t\t\tthis.setViewport( 0, 0, width, height );\n\n\t\t};\n\n\t\tthis.getDrawingBufferSize = function () {\n\n\t\t\treturn {\n\t\t\t\twidth: _width * _pixelRatio,\n\t\t\t\theight: _height * _pixelRatio\n\t\t\t};\n\n\t\t};\n\n\t\tthis.setDrawingBufferSize = function ( width, height, pixelRatio ) {\n\n\t\t\t_width = width;\n\t\t\t_height = height;\n\n\t\t\t_pixelRatio = pixelRatio;\n\n\t\t\t_canvas.width = width * pixelRatio;\n\t\t\t_canvas.height = height * pixelRatio;\n\n\t\t\tthis.setViewport( 0, 0, width, height );\n\n\t\t};\n\n\t\tthis.getCurrentViewport = function () {\n\n\t\t\treturn _currentViewport;\n\n\t\t};\n\n\t\tthis.setViewport = function ( x, y, width, height ) {\n\n\t\t\t_viewport.set( x, _height - y - height, width, height );\n\t\t\tstate.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );\n\n\t\t};\n\n\t\tthis.setScissor = function ( x, y, width, height ) {\n\n\t\t\t_scissor.set( x, _height - y - height, width, height );\n\t\t\tstate.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );\n\n\t\t};\n\n\t\tthis.setScissorTest = function ( boolean ) {\n\n\t\t\tstate.setScissorTest( _scissorTest = boolean );\n\n\t\t};\n\n\t\t// Clearing\n\n\t\tthis.getClearColor = function () {\n\n\t\t\treturn background.getClearColor();\n\n\t\t};\n\n\t\tthis.setClearColor = function () {\n\n\t\t\tbackground.setClearColor.apply( background, arguments );\n\n\t\t};\n\n\t\tthis.getClearAlpha = function () {\n\n\t\t\treturn background.getClearAlpha();\n\n\t\t};\n\n\t\tthis.setClearAlpha = function () {\n\n\t\t\tbackground.setClearAlpha.apply( background, arguments );\n\n\t\t};\n\n\t\tthis.clear = function ( color, depth, stencil ) {\n\n\t\t\tvar bits = 0;\n\n\t\t\tif ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;\n\t\t\tif ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;\n\t\t\tif ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;\n\n\t\t\t_gl.clear( bits );\n\n\t\t};\n\n\t\tthis.clearColor = function () {\n\n\t\t\tthis.clear( true, false, false );\n\n\t\t};\n\n\t\tthis.clearDepth = function () {\n\n\t\t\tthis.clear( false, true, false );\n\n\t\t};\n\n\t\tthis.clearStencil = function () {\n\n\t\t\tthis.clear( false, false, true );\n\n\t\t};\n\n\t\tthis.clearTarget = function ( renderTarget, color, depth, stencil ) {\n\n\t\t\tthis.setRenderTarget( renderTarget );\n\t\t\tthis.clear( color, depth, stencil );\n\n\t\t};\n\n\t\t//\n\n\t\tthis.dispose = function () {\n\n\t\t\t_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );\n\t\t\t_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );\n\n\t\t\trenderLists.dispose();\n\t\t\trenderStates.dispose();\n\t\t\tproperties.dispose();\n\t\t\tobjects.dispose();\n\n\t\t\tvr.dispose();\n\n\t\t\tanimation.stop();\n\n\t\t};\n\n\t\t// Events\n\n\t\tfunction onContextLost( event ) {\n\n\t\t\tevent.preventDefault();\n\n\t\t\tconsole.log( 'THREE.WebGLRenderer: Context Lost.' );\n\n\t\t\t_isContextLost = true;\n\n\t\t}\n\n\t\tfunction onContextRestore( /* event */ ) {\n\n\t\t\tconsole.log( 'THREE.WebGLRenderer: Context Restored.' );\n\n\t\t\t_isContextLost = false;\n\n\t\t\tinitGLContext();\n\n\t\t}\n\n\t\tfunction onMaterialDispose( event ) {\n\n\t\t\tvar material = event.target;\n\n\t\t\tmaterial.removeEventListener( 'dispose', onMaterialDispose );\n\n\t\t\tdeallocateMaterial( material );\n\n\t\t}\n\n\t\t// Buffer deallocation\n\n\t\tfunction deallocateMaterial( material ) {\n\n\t\t\treleaseMaterialProgramReference( material );\n\n\t\t\tproperties.remove( material );\n\n\t\t}\n\n\n\t\tfunction releaseMaterialProgramReference( material ) {\n\n\t\t\tvar programInfo = properties.get( material ).program;\n\n\t\t\tmaterial.program = undefined;\n\n\t\t\tif ( programInfo !== undefined ) {\n\n\t\t\t\tprogramCache.releaseProgram( programInfo );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Buffer rendering\n\n\t\tfunction renderObjectImmediate( object, program ) {\n\n\t\t\tobject.render( function ( object ) {\n\n\t\t\t\t_this.renderBufferImmediate( object, program );\n\n\t\t\t} );\n\n\t\t}\n\n\t\tthis.renderBufferImmediate = function ( object, program ) {\n\n\t\t\tstate.initAttributes();\n\n\t\t\tvar buffers = properties.get( object );\n\n\t\t\tif ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();\n\t\t\tif ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();\n\t\t\tif ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();\n\t\t\tif ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();\n\n\t\t\tvar programAttributes = program.getAttributes();\n\n\t\t\tif ( object.hasPositions ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.position );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.position, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasNormals ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.normal );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.normal, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasUvs ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.uv );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.uv, 2, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasColors ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( programAttributes.color );\n\t\t\t\t_gl.vertexAttribPointer( programAttributes.color, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t\t_gl.drawArrays( _gl.TRIANGLES, 0, object.count );\n\n\t\t\tobject.count = 0;\n\n\t\t};\n\n\t\tthis.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {\n\n\t\t\tvar frontFaceCW = ( object.isMesh && object.normalMatrix.determinant() < 0 );\n\n\t\t\tstate.setMaterial( material, frontFaceCW );\n\n\t\t\tvar program = setProgram( camera, fog, material, object );\n\n\t\t\tvar updateBuffers = false;\n\n\t\t\tif ( _currentGeometryProgram.geometry !== geometry.id ||\n\t\t\t\t_currentGeometryProgram.program !== program.id ||\n\t\t\t\t_currentGeometryProgram.wireframe !== ( material.wireframe === true ) ) {\n\n\t\t\t\t_currentGeometryProgram.geometry = geometry.id;\n\t\t\t\t_currentGeometryProgram.program = program.id;\n\t\t\t\t_currentGeometryProgram.wireframe = material.wireframe === true;\n\t\t\t\tupdateBuffers = true;\n\n\t\t\t}\n\n\t\t\tif ( object.morphTargetInfluences ) {\n\n\t\t\t\tmorphtargets.update( object, geometry, material, program );\n\n\t\t\t\tupdateBuffers = true;\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar index = geometry.index;\n\t\t\tvar position = geometry.attributes.position;\n\t\t\tvar rangeFactor = 1;\n\n\t\t\tif ( material.wireframe === true ) {\n\n\t\t\t\tindex = geometries.getWireframeAttribute( geometry );\n\t\t\t\trangeFactor = 2;\n\n\t\t\t}\n\n\t\t\tvar attribute;\n\t\t\tvar renderer = bufferRenderer;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tattribute = attributes.get( index );\n\n\t\t\t\trenderer = indexedBufferRenderer;\n\t\t\t\trenderer.setIndex( attribute );\n\n\t\t\t}\n\n\t\t\tif ( updateBuffers ) {\n\n\t\t\t\tsetupVertexAttributes( material, program, geometry );\n\n\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, attribute.buffer );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar dataCount = Infinity;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tdataCount = index.count;\n\n\t\t\t} else if ( position !== undefined ) {\n\n\t\t\t\tdataCount = position.count;\n\n\t\t\t}\n\n\t\t\tvar rangeStart = geometry.drawRange.start * rangeFactor;\n\t\t\tvar rangeCount = geometry.drawRange.count * rangeFactor;\n\n\t\t\tvar groupStart = group !== null ? group.start * rangeFactor : 0;\n\t\t\tvar groupCount = group !== null ? group.count * rangeFactor : Infinity;\n\n\t\t\tvar drawStart = Math.max( rangeStart, groupStart );\n\t\t\tvar drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;\n\n\t\t\tvar drawCount = Math.max( 0, drawEnd - drawStart + 1 );\n\n\t\t\tif ( drawCount === 0 ) return;\n\n\t\t\t//\n\n\t\t\tif ( object.isMesh ) {\n\n\t\t\t\tif ( material.wireframe === true ) {\n\n\t\t\t\t\tstate.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );\n\t\t\t\t\trenderer.setMode( _gl.LINES );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tswitch ( object.drawMode ) {\n\n\t\t\t\t\t\tcase TrianglesDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLES );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TriangleStripDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLE_STRIP );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TriangleFanDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLE_FAN );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\n\t\t\t} else if ( object.isLine ) {\n\n\t\t\t\tvar lineWidth = material.linewidth;\n\n\t\t\t\tif ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material\n\n\t\t\t\tstate.setLineWidth( lineWidth * getTargetPixelRatio() );\n\n\t\t\t\tif ( object.isLineSegments ) {\n\n\t\t\t\t\trenderer.setMode( _gl.LINES );\n\n\t\t\t\t} else if ( object.isLineLoop ) {\n\n\t\t\t\t\trenderer.setMode( _gl.LINE_LOOP );\n\n\t\t\t\t} else {\n\n\t\t\t\t\trenderer.setMode( _gl.LINE_STRIP );\n\n\t\t\t\t}\n\n\t\t\t} else if ( object.isPoints ) {\n\n\t\t\t\trenderer.setMode( _gl.POINTS );\n\n\t\t\t} else if ( object.isSprite ) {\n\n\t\t\t\trenderer.setMode( _gl.TRIANGLES );\n\n\t\t\t}\n\n\t\t\tif ( geometry && geometry.isInstancedBufferGeometry ) {\n\n\t\t\t\tif ( geometry.maxInstancedCount > 0 ) {\n\n\t\t\t\t\trenderer.renderInstances( geometry, drawStart, drawCount );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\trenderer.render( drawStart, drawCount );\n\n\t\t\t}\n\n\t\t};\n\n\t\tfunction setupVertexAttributes( material, program, geometry ) {\n\n\t\t\tif ( geometry && geometry.isInstancedBufferGeometry & ! capabilities.isWebGL2 ) {\n\n\t\t\t\tif ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {\n\n\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.initAttributes();\n\n\t\t\tvar geometryAttributes = geometry.attributes;\n\n\t\t\tvar programAttributes = program.getAttributes();\n\n\t\t\tvar materialDefaultAttributeValues = material.defaultAttributeValues;\n\n\t\t\tfor ( var name in programAttributes ) {\n\n\t\t\t\tvar programAttribute = programAttributes[ name ];\n\n\t\t\t\tif ( programAttribute >= 0 ) {\n\n\t\t\t\t\tvar geometryAttribute = geometryAttributes[ name ];\n\n\t\t\t\t\tif ( geometryAttribute !== undefined ) {\n\n\t\t\t\t\t\tvar normalized = geometryAttribute.normalized;\n\t\t\t\t\t\tvar size = geometryAttribute.itemSize;\n\n\t\t\t\t\t\tvar attribute = attributes.get( geometryAttribute );\n\n\t\t\t\t\t\t// TODO Attribute may not be available on context restore\n\n\t\t\t\t\t\tif ( attribute === undefined ) continue;\n\n\t\t\t\t\t\tvar buffer = attribute.buffer;\n\t\t\t\t\t\tvar type = attribute.type;\n\t\t\t\t\t\tvar bytesPerElement = attribute.bytesPerElement;\n\n\t\t\t\t\t\tif ( geometryAttribute.isInterleavedBufferAttribute ) {\n\n\t\t\t\t\t\t\tvar data = geometryAttribute.data;\n\t\t\t\t\t\t\tvar stride = data.stride;\n\t\t\t\t\t\t\tvar offset = geometryAttribute.offset;\n\n\t\t\t\t\t\t\tif ( data && data.isInstancedInterleavedBuffer ) {\n\n\t\t\t\t\t\t\t\tstate.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );\n\n\t\t\t\t\t\t\t\tif ( geometry.maxInstancedCount === undefined ) {\n\n\t\t\t\t\t\t\t\t\tgeometry.maxInstancedCount = data.meshPerAttribute * data.count;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.enableAttribute( programAttribute );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );\n\t\t\t\t\t\t\t_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tif ( geometryAttribute.isInstancedBufferAttribute ) {\n\n\t\t\t\t\t\t\t\tstate.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );\n\n\t\t\t\t\t\t\t\tif ( geometry.maxInstancedCount === undefined ) {\n\n\t\t\t\t\t\t\t\t\tgeometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.enableAttribute( programAttribute );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );\n\t\t\t\t\t\t\t_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, 0 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( materialDefaultAttributeValues !== undefined ) {\n\n\t\t\t\t\t\tvar value = materialDefaultAttributeValues[ name ];\n\n\t\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\t\tswitch ( value.length ) {\n\n\t\t\t\t\t\t\t\tcase 2:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib2fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase 3:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib3fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase 4:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib4fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib1fv( programAttribute, value );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t}\n\n\t\t// Compile\n\n\t\tthis.compile = function ( scene, camera ) {\n\n\t\t\tcurrentRenderState = renderStates.get( scene, camera );\n\t\t\tcurrentRenderState.init();\n\n\t\t\tscene.traverse( function ( object ) {\n\n\t\t\t\tif ( object.isLight ) {\n\n\t\t\t\t\tcurrentRenderState.pushLight( object );\n\n\t\t\t\t\tif ( object.castShadow ) {\n\n\t\t\t\t\t\tcurrentRenderState.pushShadow( object );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} );\n\n\t\t\tcurrentRenderState.setupLights( camera );\n\n\t\t\tscene.traverse( function ( object ) {\n\n\t\t\t\tif ( object.material ) {\n\n\t\t\t\t\tif ( Array.isArray( object.material ) ) {\n\n\t\t\t\t\t\tfor ( var i = 0; i < object.material.length; i ++ ) {\n\n\t\t\t\t\t\t\tinitMaterial( object.material[ i ], scene.fog, object );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tinitMaterial( object.material, scene.fog, object );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} );\n\n\t\t};\n\n\t\t// Animation Loop\n\n\t\tvar onAnimationFrameCallback = null;\n\n\t\tfunction onAnimationFrame( time ) {\n\n\t\t\tif ( vr.isPresenting() ) return;\n\t\t\tif ( onAnimationFrameCallback ) onAnimationFrameCallback( time );\n\n\t\t}\n\n\t\tvar animation = new WebGLAnimation();\n\t\tanimation.setAnimationLoop( onAnimationFrame );\n\n\t\tif ( typeof window !== 'undefined' ) animation.setContext( window );\n\n\t\tthis.setAnimationLoop = function ( callback ) {\n\n\t\t\tonAnimationFrameCallback = callback;\n\t\t\tvr.setAnimationLoop( callback );\n\n\t\t\tanimation.start();\n\n\t\t};\n\n\t\t// Rendering\n\n\t\tthis.render = function ( scene, camera, renderTarget, forceClear ) {\n\n\t\t\tif ( ! ( camera && camera.isCamera ) ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( _isContextLost ) return;\n\n\t\t\t// reset caching for this frame\n\n\t\t\t_currentGeometryProgram.geometry = null;\n\t\t\t_currentGeometryProgram.program = null;\n\t\t\t_currentGeometryProgram.wireframe = false;\n\t\t\t_currentMaterialId = - 1;\n\t\t\t_currentCamera = null;\n\n\t\t\t// update scene graph\n\n\t\t\tif ( scene.autoUpdate === true ) scene.updateMatrixWorld();\n\n\t\t\t// update camera matrices and frustum\n\n\t\t\tif ( camera.parent === null ) camera.updateMatrixWorld();\n\n\t\t\tif ( vr.enabled ) {\n\n\t\t\t\tcamera = vr.getCamera( camera );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tcurrentRenderState = renderStates.get( scene, camera );\n\t\t\tcurrentRenderState.init();\n\n\t\t\tscene.onBeforeRender( _this, scene, camera, renderTarget );\n\n\t\t\t_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );\n\t\t\t_frustum.setFromMatrix( _projScreenMatrix );\n\n\t\t\t_localClippingEnabled = this.localClippingEnabled;\n\t\t\t_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );\n\n\t\t\tcurrentRenderList = renderLists.get( scene, camera );\n\t\t\tcurrentRenderList.init();\n\n\t\t\tprojectObject( scene, camera, _this.sortObjects );\n\n\t\t\tif ( _this.sortObjects === true ) {\n\n\t\t\t\tcurrentRenderList.sort();\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( _clippingEnabled ) _clipping.beginShadows();\n\n\t\t\tvar shadowsArray = currentRenderState.state.shadowsArray;\n\n\t\t\tshadowMap.render( shadowsArray, scene, camera );\n\n\t\t\tcurrentRenderState.setupLights( camera );\n\n\t\t\tif ( _clippingEnabled ) _clipping.endShadows();\n\n\t\t\t//\n\n\t\t\tif ( this.info.autoReset ) this.info.reset();\n\n\t\t\tif ( renderTarget === undefined ) {\n\n\t\t\t\trenderTarget = null;\n\n\t\t\t}\n\n\t\t\tthis.setRenderTarget( renderTarget );\n\n\t\t\t//\n\n\t\t\tbackground.render( currentRenderList, scene, camera, forceClear );\n\n\t\t\t// render scene\n\n\t\t\tvar opaqueObjects = currentRenderList.opaque;\n\t\t\tvar transparentObjects = currentRenderList.transparent;\n\n\t\t\tif ( scene.overrideMaterial ) {\n\n\t\t\t\tvar overrideMaterial = scene.overrideMaterial;\n\n\t\t\t\tif ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );\n\t\t\t\tif ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );\n\n\t\t\t} else {\n\n\t\t\t\t// opaque pass (front-to-back order)\n\n\t\t\t\tif ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );\n\n\t\t\t\t// transparent pass (back-to-front order)\n\n\t\t\t\tif ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );\n\n\t\t\t}\n\n\t\t\t// Generate mipmap if we're using any kind of mipmap filtering\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\ttextures.updateRenderTargetMipmap( renderTarget );\n\n\t\t\t}\n\n\t\t\t// Ensure depth buffer writing is enabled so it can be cleared on next render\n\n\t\t\tstate.buffers.depth.setTest( true );\n\t\t\tstate.buffers.depth.setMask( true );\n\t\t\tstate.buffers.color.setMask( true );\n\n\t\t\tstate.setPolygonOffset( false );\n\n\t\t\tscene.onAfterRender( _this, scene, camera );\n\n\t\t\tif ( vr.enabled ) {\n\n\t\t\t\tvr.submitFrame();\n\n\t\t\t}\n\n\t\t\t// _gl.finish();\n\n\t\t\tcurrentRenderList = null;\n\t\t\tcurrentRenderState = null;\n\n\t\t};\n\n\t\t/*\n\t\t// TODO Duplicated code (Frustum)\n\n\t\tvar _sphere = new Sphere();\n\n\t\tfunction isObjectViewable( object ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( geometry.boundingSphere === null )\n\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t_sphere.copy( geometry.boundingSphere ).\n\t\t\tapplyMatrix4( object.matrixWorld );\n\n\t\t\treturn isSphereViewable( _sphere );\n\n\t\t}\n\n\t\tfunction isSpriteViewable( sprite ) {\n\n\t\t\t_sphere.center.set( 0, 0, 0 );\n\t\t\t_sphere.radius = 0.7071067811865476;\n\t\t\t_sphere.applyMatrix4( sprite.matrixWorld );\n\n\t\t\treturn isSphereViewable( _sphere );\n\n\t\t}\n\n\t\tfunction isSphereViewable( sphere ) {\n\n\t\t\tif ( ! _frustum.intersectsSphere( sphere ) ) return false;\n\n\t\t\tvar numPlanes = _clipping.numPlanes;\n\n\t\t\tif ( numPlanes === 0 ) return true;\n\n\t\t\tvar planes = _this.clippingPlanes,\n\n\t\t\t\tcenter = sphere.center,\n\t\t\t\tnegRad = - sphere.radius,\n\t\t\t\ti = 0;\n\n\t\t\tdo {\n\n\t\t\t\t// out when deeper than radius in the negative halfspace\n\t\t\t\tif ( planes[ i ].distanceToPoint( center ) < negRad ) return false;\n\n\t\t\t} while ( ++ i !== numPlanes );\n\n\t\t\treturn true;\n\n\t\t}\n\t\t*/\n\n\t\tfunction projectObject( object, camera, sortObjects ) {\n\n\t\t\tif ( object.visible === false ) return;\n\n\t\t\tvar visible = object.layers.test( camera.layers );\n\n\t\t\tif ( visible ) {\n\n\t\t\t\tif ( object.isLight ) {\n\n\t\t\t\t\tcurrentRenderState.pushLight( object );\n\n\t\t\t\t\tif ( object.castShadow ) {\n\n\t\t\t\t\t\tcurrentRenderState.pushShadow( object );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( object.isSprite ) {\n\n\t\t\t\t\tif ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {\n\n\t\t\t\t\t\tif ( sortObjects ) {\n\n\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld )\n\t\t\t\t\t\t\t\t.applyMatrix4( _projScreenMatrix );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar geometry = objects.update( object );\n\t\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\t\tcurrentRenderList.push( object, geometry, material, _vector3.z, null );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( object.isImmediateRenderObject ) {\n\n\t\t\t\t\tif ( sortObjects ) {\n\n\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld )\n\t\t\t\t\t\t\t.applyMatrix4( _projScreenMatrix );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tcurrentRenderList.push( object, null, object.material, _vector3.z, null );\n\n\t\t\t\t} else if ( object.isMesh || object.isLine || object.isPoints ) {\n\n\t\t\t\t\tif ( object.isSkinnedMesh ) {\n\n\t\t\t\t\t\tobject.skeleton.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {\n\n\t\t\t\t\t\tif ( sortObjects ) {\n\n\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld )\n\t\t\t\t\t\t\t\t.applyMatrix4( _projScreenMatrix );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar geometry = objects.update( object );\n\t\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\t\tif ( Array.isArray( material ) ) {\n\n\t\t\t\t\t\t\tvar groups = geometry.groups;\n\n\t\t\t\t\t\t\tfor ( var i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\t\tvar group = groups[ i ];\n\t\t\t\t\t\t\t\tvar groupMaterial = material[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\tif ( groupMaterial && groupMaterial.visible ) {\n\n\t\t\t\t\t\t\t\t\tcurrentRenderList.push( object, geometry, groupMaterial, _vector3.z, group );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else if ( material.visible ) {\n\n\t\t\t\t\t\t\tcurrentRenderList.push( object, geometry, material, _vector3.z, null );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tprojectObject( children[ i ], camera, sortObjects );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction renderObjects( renderList, scene, camera, overrideMaterial ) {\n\n\t\t\tfor ( var i = 0, l = renderList.length; i < l; i ++ ) {\n\n\t\t\t\tvar renderItem = renderList[ i ];\n\n\t\t\t\tvar object = renderItem.object;\n\t\t\t\tvar geometry = renderItem.geometry;\n\t\t\t\tvar material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;\n\t\t\t\tvar group = renderItem.group;\n\n\t\t\t\tif ( camera.isArrayCamera ) {\n\n\t\t\t\t\t_currentArrayCamera = camera;\n\n\t\t\t\t\tvar cameras = camera.cameras;\n\n\t\t\t\t\tfor ( var j = 0, jl = cameras.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar camera2 = cameras[ j ];\n\n\t\t\t\t\t\tif ( object.layers.test( camera2.layers ) ) {\n\n\t\t\t\t\t\t\tif ( 'viewport' in camera2 ) { // XR\n\n\t\t\t\t\t\t\t\tstate.viewport( _currentViewport.copy( camera2.viewport ) );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tvar bounds = camera2.bounds;\n\n\t\t\t\t\t\t\t\tvar x = bounds.x * _width;\n\t\t\t\t\t\t\t\tvar y = bounds.y * _height;\n\t\t\t\t\t\t\t\tvar width = bounds.z * _width;\n\t\t\t\t\t\t\t\tvar height = bounds.w * _height;\n\n\t\t\t\t\t\t\t\tstate.viewport( _currentViewport.set( x, y, width, height ).multiplyScalar( _pixelRatio ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\trenderObject( object, scene, camera2, geometry, material, group );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t_currentArrayCamera = null;\n\n\t\t\t\t\trenderObject( object, scene, camera, geometry, material, group );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction renderObject( object, scene, camera, geometry, material, group ) {\n\n\t\t\tobject.onBeforeRender( _this, scene, camera, geometry, material, group );\n\t\t\tcurrentRenderState = renderStates.get( scene, _currentArrayCamera || camera );\n\n\t\t\tobject.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );\n\t\t\tobject.normalMatrix.getNormalMatrix( object.modelViewMatrix );\n\n\t\t\tif ( object.isImmediateRenderObject ) {\n\n\t\t\t\tstate.setMaterial( material );\n\n\t\t\t\tvar program = setProgram( camera, scene.fog, material, object );\n\n\t\t\t\t_currentGeometryProgram.geometry = null;\n\t\t\t\t_currentGeometryProgram.program = null;\n\t\t\t\t_currentGeometryProgram.wireframe = false;\n\n\t\t\t\trenderObjectImmediate( object, program );\n\n\t\t\t} else {\n\n\t\t\t\t_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );\n\n\t\t\t}\n\n\t\t\tobject.onAfterRender( _this, scene, camera, geometry, material, group );\n\t\t\tcurrentRenderState = renderStates.get( scene, _currentArrayCamera || camera );\n\n\t\t}\n\n\t\tfunction initMaterial( material, fog, object ) {\n\n\t\t\tvar materialProperties = properties.get( material );\n\n\t\t\tvar lights = currentRenderState.state.lights;\n\t\t\tvar shadowsArray = currentRenderState.state.shadowsArray;\n\n\t\t\tvar lightsHash = materialProperties.lightsHash;\n\t\t\tvar lightsStateHash = lights.state.hash;\n\n\t\t\tvar parameters = programCache.getParameters(\n\t\t\t\tmaterial, lights.state, shadowsArray, fog, _clipping.numPlanes, _clipping.numIntersection, object );\n\n\t\t\tvar code = programCache.getProgramCode( material, parameters );\n\n\t\t\tvar program = materialProperties.program;\n\t\t\tvar programChange = true;\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\t// new material\n\t\t\t\tmaterial.addEventListener( 'dispose', onMaterialDispose );\n\n\t\t\t} else if ( program.code !== code ) {\n\n\t\t\t\t// changed glsl or parameters\n\t\t\t\treleaseMaterialProgramReference( material );\n\n\t\t\t} else if ( lightsHash.stateID !== lightsStateHash.stateID ||\n\t\t\t\tlightsHash.directionalLength !== lightsStateHash.directionalLength ||\n\t\t\t\tlightsHash.pointLength !== lightsStateHash.pointLength ||\n\t\t\t\tlightsHash.spotLength !== lightsStateHash.spotLength ||\n\t\t\t\tlightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||\n\t\t\t\tlightsHash.hemiLength !== lightsStateHash.hemiLength ||\n\t\t\t\tlightsHash.shadowsLength !== lightsStateHash.shadowsLength ) {\n\n\t\t\t\tlightsHash.stateID = lightsStateHash.stateID;\n\t\t\t\tlightsHash.directionalLength = lightsStateHash.directionalLength;\n\t\t\t\tlightsHash.pointLength = lightsStateHash.pointLength;\n\t\t\t\tlightsHash.spotLength = lightsStateHash.spotLength;\n\t\t\t\tlightsHash.rectAreaLength = lightsStateHash.rectAreaLength;\n\t\t\t\tlightsHash.hemiLength = lightsStateHash.hemiLength;\n\t\t\t\tlightsHash.shadowsLength = lightsStateHash.shadowsLength;\n\n\t\t\t\tprogramChange = false;\n\n\t\t\t} else if ( parameters.shaderID !== undefined ) {\n\n\t\t\t\t// same glsl and uniform list\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\t// only rebuild uniform list\n\t\t\t\tprogramChange = false;\n\n\t\t\t}\n\n\t\t\tif ( programChange ) {\n\n\t\t\t\tif ( parameters.shaderID ) {\n\n\t\t\t\t\tvar shader = ShaderLib[ parameters.shaderID ];\n\n\t\t\t\t\tmaterialProperties.shader = {\n\t\t\t\t\t\tname: material.type,\n\t\t\t\t\t\tuniforms: UniformsUtils.clone( shader.uniforms ),\n\t\t\t\t\t\tvertexShader: shader.vertexShader,\n\t\t\t\t\t\tfragmentShader: shader.fragmentShader\n\t\t\t\t\t};\n\n\t\t\t\t} else {\n\n\t\t\t\t\tmaterialProperties.shader = {\n\t\t\t\t\t\tname: material.type,\n\t\t\t\t\t\tuniforms: material.uniforms,\n\t\t\t\t\t\tvertexShader: material.vertexShader,\n\t\t\t\t\t\tfragmentShader: material.fragmentShader\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t\tmaterial.onBeforeCompile( materialProperties.shader, _this );\n\n\t\t\t\t// Computing code again as onBeforeCompile may have changed the shaders\n\t\t\t\tcode = programCache.getProgramCode( material, parameters );\n\n\t\t\t\tprogram = programCache.acquireProgram( material, materialProperties.shader, parameters, code );\n\n\t\t\t\tmaterialProperties.program = program;\n\t\t\t\tmaterial.program = program;\n\n\t\t\t}\n\n\t\t\tvar programAttributes = program.getAttributes();\n\n\t\t\tif ( material.morphTargets ) {\n\n\t\t\t\tmaterial.numSupportedMorphTargets = 0;\n\n\t\t\t\tfor ( var i = 0; i < _this.maxMorphTargets; i ++ ) {\n\n\t\t\t\t\tif ( programAttributes[ 'morphTarget' + i ] >= 0 ) {\n\n\t\t\t\t\t\tmaterial.numSupportedMorphTargets ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.morphNormals ) {\n\n\t\t\t\tmaterial.numSupportedMorphNormals = 0;\n\n\t\t\t\tfor ( var i = 0; i < _this.maxMorphNormals; i ++ ) {\n\n\t\t\t\t\tif ( programAttributes[ 'morphNormal' + i ] >= 0 ) {\n\n\t\t\t\t\t\tmaterial.numSupportedMorphNormals ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar uniforms = materialProperties.shader.uniforms;\n\n\t\t\tif ( ! material.isShaderMaterial &&\n\t\t\t\t! material.isRawShaderMaterial ||\n\t\t\t\tmaterial.clipping === true ) {\n\n\t\t\t\tmaterialProperties.numClippingPlanes = _clipping.numPlanes;\n\t\t\t\tmaterialProperties.numIntersection = _clipping.numIntersection;\n\t\t\t\tuniforms.clippingPlanes = _clipping.uniform;\n\n\t\t\t}\n\n\t\t\tmaterialProperties.fog = fog;\n\n\t\t\t// store the light setup it was created for\n\t\t\tif ( lightsHash === undefined ) {\n\n\t\t\t\tmaterialProperties.lightsHash = lightsHash = {};\n\n\t\t\t}\n\n\t\t\tlightsHash.stateID = lightsStateHash.stateID;\n\t\t\tlightsHash.directionalLength = lightsStateHash.directionalLength;\n\t\t\tlightsHash.pointLength = lightsStateHash.pointLength;\n\t\t\tlightsHash.spotLength = lightsStateHash.spotLength;\n\t\t\tlightsHash.rectAreaLength = lightsStateHash.rectAreaLength;\n\t\t\tlightsHash.hemiLength = lightsStateHash.hemiLength;\n\t\t\tlightsHash.shadowsLength = lightsStateHash.shadowsLength;\n\n\t\t\tif ( material.lights ) {\n\n\t\t\t\t// wire up the material to this renderer's lighting state\n\n\t\t\t\tuniforms.ambientLightColor.value = lights.state.ambient;\n\t\t\t\tuniforms.directionalLights.value = lights.state.directional;\n\t\t\t\tuniforms.spotLights.value = lights.state.spot;\n\t\t\t\tuniforms.rectAreaLights.value = lights.state.rectArea;\n\t\t\t\tuniforms.pointLights.value = lights.state.point;\n\t\t\t\tuniforms.hemisphereLights.value = lights.state.hemi;\n\n\t\t\t\tuniforms.directionalShadowMap.value = lights.state.directionalShadowMap;\n\t\t\t\tuniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;\n\t\t\t\tuniforms.spotShadowMap.value = lights.state.spotShadowMap;\n\t\t\t\tuniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;\n\t\t\t\tuniforms.pointShadowMap.value = lights.state.pointShadowMap;\n\t\t\t\tuniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;\n\t\t\t\t// TODO (abelnation): add area lights shadow info to uniforms\n\n\t\t\t}\n\n\t\t\tvar progUniforms = materialProperties.program.getUniforms(),\n\t\t\t\tuniformsList =\n\t\t\t\t\tWebGLUniforms.seqWithValue( progUniforms.seq, uniforms );\n\n\t\t\tmaterialProperties.uniformsList = uniformsList;\n\n\t\t}\n\n\t\tfunction setProgram( camera, fog, material, object ) {\n\n\t\t\t_usedTextureUnits = 0;\n\n\t\t\tvar materialProperties = properties.get( material );\n\t\t\tvar lights = currentRenderState.state.lights;\n\n\t\t\tvar lightsHash = materialProperties.lightsHash;\n\t\t\tvar lightsStateHash = lights.state.hash;\n\n\t\t\tif ( _clippingEnabled ) {\n\n\t\t\t\tif ( _localClippingEnabled || camera !== _currentCamera ) {\n\n\t\t\t\t\tvar useCache =\n\t\t\t\t\t\tcamera === _currentCamera &&\n\t\t\t\t\t\tmaterial.id === _currentMaterialId;\n\n\t\t\t\t\t// we might want to call this function with some ClippingGroup\n\t\t\t\t\t// object instead of the material, once it becomes feasible\n\t\t\t\t\t// (#8465, #8379)\n\t\t\t\t\t_clipping.setState(\n\t\t\t\t\t\tmaterial.clippingPlanes, material.clipIntersection, material.clipShadows,\n\t\t\t\t\t\tcamera, materialProperties, useCache );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.needsUpdate === false ) {\n\n\t\t\t\tif ( materialProperties.program === undefined ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( material.fog && materialProperties.fog !== fog ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( material.lights && ( lightsHash.stateID !== lightsStateHash.stateID ||\n\t\t\t\t\tlightsHash.directionalLength !== lightsStateHash.directionalLength ||\n\t\t\t\t\tlightsHash.pointLength !== lightsStateHash.pointLength ||\n\t\t\t\t\tlightsHash.spotLength !== lightsStateHash.spotLength ||\n\t\t\t\t\tlightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||\n\t\t\t\t\tlightsHash.hemiLength !== lightsStateHash.hemiLength ||\n\t\t\t\t\tlightsHash.shadowsLength !== lightsStateHash.shadowsLength ) ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( materialProperties.numClippingPlanes !== undefined &&\n\t\t\t\t\t( materialProperties.numClippingPlanes !== _clipping.numPlanes ||\n\t\t\t\t\tmaterialProperties.numIntersection !== _clipping.numIntersection ) ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.needsUpdate ) {\n\n\t\t\t\tinitMaterial( material, fog, object );\n\t\t\t\tmaterial.needsUpdate = false;\n\n\t\t\t}\n\n\t\t\tvar refreshProgram = false;\n\t\t\tvar refreshMaterial = false;\n\t\t\tvar refreshLights = false;\n\n\t\t\tvar program = materialProperties.program,\n\t\t\t\tp_uniforms = program.getUniforms(),\n\t\t\t\tm_uniforms = materialProperties.shader.uniforms;\n\n\t\t\tif ( state.useProgram( program.program ) ) {\n\n\t\t\t\trefreshProgram = true;\n\t\t\t\trefreshMaterial = true;\n\t\t\t\trefreshLights = true;\n\n\t\t\t}\n\n\t\t\tif ( material.id !== _currentMaterialId ) {\n\n\t\t\t\t_currentMaterialId = material.id;\n\n\t\t\t\trefreshMaterial = true;\n\n\t\t\t}\n\n\t\t\tif ( refreshProgram || camera !== _currentCamera ) {\n\n\t\t\t\tp_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );\n\n\t\t\t\tif ( capabilities.logarithmicDepthBuffer ) {\n\n\t\t\t\t\tp_uniforms.setValue( _gl, 'logDepthBufFC',\n\t\t\t\t\t\t2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );\n\n\t\t\t\t}\n\n\t\t\t\t// Avoid unneeded uniform updates per ArrayCamera's sub-camera\n\n\t\t\t\tif ( _currentCamera !== ( _currentArrayCamera || camera ) ) {\n\n\t\t\t\t\t_currentCamera = ( _currentArrayCamera || camera );\n\n\t\t\t\t\t// lighting uniforms depend on the camera so enforce an update\n\t\t\t\t\t// now, in case this material supports lights - or later, when\n\t\t\t\t\t// the next material that does gets activated:\n\n\t\t\t\t\trefreshMaterial = true;\t\t// set to true on material change\n\t\t\t\t\trefreshLights = true;\t\t// remains set until update done\n\n\t\t\t\t}\n\n\t\t\t\t// load material specific uniforms\n\t\t\t\t// (shader material also gets them for the sake of genericity)\n\n\t\t\t\tif ( material.isShaderMaterial ||\n\t\t\t\t\tmaterial.isMeshPhongMaterial ||\n\t\t\t\t\tmaterial.isMeshStandardMaterial ||\n\t\t\t\t\tmaterial.envMap ) {\n\n\t\t\t\t\tvar uCamPos = p_uniforms.map.cameraPosition;\n\n\t\t\t\t\tif ( uCamPos !== undefined ) {\n\n\t\t\t\t\t\tuCamPos.setValue( _gl,\n\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( camera.matrixWorld ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( material.isMeshPhongMaterial ||\n\t\t\t\t\tmaterial.isMeshLambertMaterial ||\n\t\t\t\t\tmaterial.isMeshBasicMaterial ||\n\t\t\t\t\tmaterial.isMeshStandardMaterial ||\n\t\t\t\t\tmaterial.isShaderMaterial ||\n\t\t\t\t\tmaterial.skinning ) {\n\n\t\t\t\t\tp_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// skinning uniforms must be set even if material didn't change\n\t\t\t// auto-setting of texture unit for bone texture must go before other textures\n\t\t\t// not sure why, but otherwise weird things happen\n\n\t\t\tif ( material.skinning ) {\n\n\t\t\t\tp_uniforms.setOptional( _gl, object, 'bindMatrix' );\n\t\t\t\tp_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );\n\n\t\t\t\tvar skeleton = object.skeleton;\n\n\t\t\t\tif ( skeleton ) {\n\n\t\t\t\t\tvar bones = skeleton.bones;\n\n\t\t\t\t\tif ( capabilities.floatVertexTextures ) {\n\n\t\t\t\t\t\tif ( skeleton.boneTexture === undefined ) {\n\n\t\t\t\t\t\t\t// layout (1 matrix = 4 pixels)\n\t\t\t\t\t\t\t// RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)\n\t\t\t\t\t\t\t// with 8x8 pixel texture max 16 bones * 4 pixels = (8 * 8)\n\t\t\t\t\t\t\t// 16x16 pixel texture max 64 bones * 4 pixels = (16 * 16)\n\t\t\t\t\t\t\t// 32x32 pixel texture max 256 bones * 4 pixels = (32 * 32)\n\t\t\t\t\t\t\t// 64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)\n\n\n\t\t\t\t\t\t\tvar size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix\n\t\t\t\t\t\t\tsize = _Math.ceilPowerOfTwo( size );\n\t\t\t\t\t\t\tsize = Math.max( size, 4 );\n\n\t\t\t\t\t\t\tvar boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel\n\t\t\t\t\t\t\tboneMatrices.set( skeleton.boneMatrices ); // copy current values\n\n\t\t\t\t\t\t\tvar boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );\n\t\t\t\t\t\t\tboneTexture.needsUpdate = true;\n\n\t\t\t\t\t\t\tskeleton.boneMatrices = boneMatrices;\n\t\t\t\t\t\t\tskeleton.boneTexture = boneTexture;\n\t\t\t\t\t\t\tskeleton.boneTextureSize = size;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tp_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture );\n\t\t\t\t\t\tp_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tp_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( refreshMaterial ) {\n\n\t\t\t\tp_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );\n\t\t\t\tp_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );\n\n\t\t\t\tif ( material.lights ) {\n\n\t\t\t\t\t// the current material requires lighting info\n\n\t\t\t\t\t// note: all lighting uniforms are always set correctly\n\t\t\t\t\t// they simply reference the renderer's state for their\n\t\t\t\t\t// values\n\t\t\t\t\t//\n\t\t\t\t\t// use the current material's .needsUpdate flags to set\n\t\t\t\t\t// the GL state when required\n\n\t\t\t\t\tmarkUniformsLightsNeedsUpdate( m_uniforms, refreshLights );\n\n\t\t\t\t}\n\n\t\t\t\t// refresh uniforms common to several materials\n\n\t\t\t\tif ( fog && material.fog ) {\n\n\t\t\t\t\trefreshUniformsFog( m_uniforms, fog );\n\n\t\t\t\t}\n\n\t\t\t\tif ( material.isMeshBasicMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshLambertMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsLambert( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshPhongMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\n\t\t\t\t\tif ( material.isMeshToonMaterial ) {\n\n\t\t\t\t\t\trefreshUniformsToon( m_uniforms, material );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\trefreshUniformsPhong( m_uniforms, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( material.isMeshStandardMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\n\t\t\t\t\tif ( material.isMeshPhysicalMaterial ) {\n\n\t\t\t\t\t\trefreshUniformsPhysical( m_uniforms, material );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\trefreshUniformsStandard( m_uniforms, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( material.isMeshDepthMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsDepth( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshDistanceMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsDistance( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshNormalMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\t\t\t\t\trefreshUniformsNormal( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isLineBasicMaterial ) {\n\n\t\t\t\t\trefreshUniformsLine( m_uniforms, material );\n\n\t\t\t\t\tif ( material.isLineDashedMaterial ) {\n\n\t\t\t\t\t\trefreshUniformsDash( m_uniforms, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( material.isPointsMaterial ) {\n\n\t\t\t\t\trefreshUniformsPoints( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isSpriteMaterial ) {\n\n\t\t\t\t\trefreshUniformsSprites( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isShadowMaterial ) {\n\n\t\t\t\t\tm_uniforms.color.value = material.color;\n\t\t\t\t\tm_uniforms.opacity.value = material.opacity;\n\n\t\t\t\t}\n\n\t\t\t\t// RectAreaLight Texture\n\t\t\t\t// TODO (mrdoob): Find a nicer implementation\n\n\t\t\t\tif ( m_uniforms.ltc_1 !== undefined ) m_uniforms.ltc_1.value = UniformsLib.LTC_1;\n\t\t\t\tif ( m_uniforms.ltc_2 !== undefined ) m_uniforms.ltc_2.value = UniformsLib.LTC_2;\n\n\t\t\t\tWebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );\n\n\t\t\t}\n\n\t\t\tif ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {\n\n\t\t\t\tWebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );\n\t\t\t\tmaterial.uniformsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( material.isSpriteMaterial ) {\n\n\t\t\t\tp_uniforms.setValue( _gl, 'center', object.center );\n\n\t\t\t}\n\n\t\t\t// common matrices\n\n\t\t\tp_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );\n\t\t\tp_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );\n\t\t\tp_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );\n\n\t\t\treturn program;\n\n\t\t}\n\n\t\t// Uniforms (refresh uniforms objects)\n\n\t\tfunction refreshUniformsCommon( uniforms, material ) {\n\n\t\t\tuniforms.opacity.value = material.opacity;\n\n\t\t\tif ( material.color ) {\n\n\t\t\t\tuniforms.diffuse.value = material.color;\n\n\t\t\t}\n\n\t\t\tif ( material.emissive ) {\n\n\t\t\t\tuniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );\n\n\t\t\t}\n\n\t\t\tif ( material.map ) {\n\n\t\t\t\tuniforms.map.value = material.map;\n\n\t\t\t}\n\n\t\t\tif ( material.alphaMap ) {\n\n\t\t\t\tuniforms.alphaMap.value = material.alphaMap;\n\n\t\t\t}\n\n\t\t\tif ( material.specularMap ) {\n\n\t\t\t\tuniforms.specularMap.value = material.specularMap;\n\n\t\t\t}\n\n\t\t\tif ( material.envMap ) {\n\n\t\t\t\tuniforms.envMap.value = material.envMap;\n\n\t\t\t\t// don't flip CubeTexture envMaps, flip everything else:\n\t\t\t\t// WebGLRenderTargetCube will be flipped for backwards compatibility\n\t\t\t\t// WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture\n\t\t\t\t// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future\n\t\t\t\tuniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1;\n\n\t\t\t\tuniforms.reflectivity.value = material.reflectivity;\n\t\t\t\tuniforms.refractionRatio.value = material.refractionRatio;\n\n\t\t\t\tuniforms.maxMipLevel.value = properties.get( material.envMap ).__maxMipLevel;\n\n\t\t\t}\n\n\t\t\tif ( material.lightMap ) {\n\n\t\t\t\tuniforms.lightMap.value = material.lightMap;\n\t\t\t\tuniforms.lightMapIntensity.value = material.lightMapIntensity;\n\n\t\t\t}\n\n\t\t\tif ( material.aoMap ) {\n\n\t\t\t\tuniforms.aoMap.value = material.aoMap;\n\t\t\t\tuniforms.aoMapIntensity.value = material.aoMapIntensity;\n\n\t\t\t}\n\n\t\t\t// uv repeat and offset setting priorities\n\t\t\t// 1. color map\n\t\t\t// 2. specular map\n\t\t\t// 3. normal map\n\t\t\t// 4. bump map\n\t\t\t// 5. alpha map\n\t\t\t// 6. emissive map\n\n\t\t\tvar uvScaleMap;\n\n\t\t\tif ( material.map ) {\n\n\t\t\t\tuvScaleMap = material.map;\n\n\t\t\t} else if ( material.specularMap ) {\n\n\t\t\t\tuvScaleMap = material.specularMap;\n\n\t\t\t} else if ( material.displacementMap ) {\n\n\t\t\t\tuvScaleMap = material.displacementMap;\n\n\t\t\t} else if ( material.normalMap ) {\n\n\t\t\t\tuvScaleMap = material.normalMap;\n\n\t\t\t} else if ( material.bumpMap ) {\n\n\t\t\t\tuvScaleMap = material.bumpMap;\n\n\t\t\t} else if ( material.roughnessMap ) {\n\n\t\t\t\tuvScaleMap = material.roughnessMap;\n\n\t\t\t} else if ( material.metalnessMap ) {\n\n\t\t\t\tuvScaleMap = material.metalnessMap;\n\n\t\t\t} else if ( material.alphaMap ) {\n\n\t\t\t\tuvScaleMap = material.alphaMap;\n\n\t\t\t} else if ( material.emissiveMap ) {\n\n\t\t\t\tuvScaleMap = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( uvScaleMap !== undefined ) {\n\n\t\t\t\t// backwards compatibility\n\t\t\t\tif ( uvScaleMap.isWebGLRenderTarget ) {\n\n\t\t\t\t\tuvScaleMap = uvScaleMap.texture;\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvScaleMap.matrixAutoUpdate === true ) {\n\n\t\t\t\t\tuvScaleMap.updateMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tuniforms.uvTransform.value.copy( uvScaleMap.matrix );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsLine( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\n\t\t}\n\n\t\tfunction refreshUniformsDash( uniforms, material ) {\n\n\t\t\tuniforms.dashSize.value = material.dashSize;\n\t\t\tuniforms.totalSize.value = material.dashSize + material.gapSize;\n\t\t\tuniforms.scale.value = material.scale;\n\n\t\t}\n\n\t\tfunction refreshUniformsPoints( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\t\t\tuniforms.size.value = material.size * _pixelRatio;\n\t\t\tuniforms.scale.value = _height * 0.5;\n\n\t\t\tuniforms.map.value = material.map;\n\n\t\t\tif ( material.map !== null ) {\n\n\t\t\t\tif ( material.map.matrixAutoUpdate === true ) {\n\n\t\t\t\t\tmaterial.map.updateMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tuniforms.uvTransform.value.copy( material.map.matrix );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsSprites( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\t\t\tuniforms.rotation.value = material.rotation;\n\t\t\tuniforms.map.value = material.map;\n\n\t\t\tif ( material.map !== null ) {\n\n\t\t\t\tif ( material.map.matrixAutoUpdate === true ) {\n\n\t\t\t\t\tmaterial.map.updateMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tuniforms.uvTransform.value.copy( material.map.matrix );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsFog( uniforms, fog ) {\n\n\t\t\tuniforms.fogColor.value = fog.color;\n\n\t\t\tif ( fog.isFog ) {\n\n\t\t\t\tuniforms.fogNear.value = fog.near;\n\t\t\t\tuniforms.fogFar.value = fog.far;\n\n\t\t\t} else if ( fog.isFogExp2 ) {\n\n\t\t\t\tuniforms.fogDensity.value = fog.density;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsLambert( uniforms, material ) {\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsPhong( uniforms, material ) {\n\n\t\t\tuniforms.specular.value = material.specular;\n\t\t\tuniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\t\t\t\tif ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\t\t\t\tif ( material.side === BackSide ) uniforms.normalScale.value.negate();\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsToon( uniforms, material ) {\n\n\t\t\trefreshUniformsPhong( uniforms, material );\n\n\t\t\tif ( material.gradientMap ) {\n\n\t\t\t\tuniforms.gradientMap.value = material.gradientMap;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsStandard( uniforms, material ) {\n\n\t\t\tuniforms.roughness.value = material.roughness;\n\t\t\tuniforms.metalness.value = material.metalness;\n\n\t\t\tif ( material.roughnessMap ) {\n\n\t\t\t\tuniforms.roughnessMap.value = material.roughnessMap;\n\n\t\t\t}\n\n\t\t\tif ( material.metalnessMap ) {\n\n\t\t\t\tuniforms.metalnessMap.value = material.metalnessMap;\n\n\t\t\t}\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\t\t\t\tif ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\t\t\t\tif ( material.side === BackSide ) uniforms.normalScale.value.negate();\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t\tif ( material.envMap ) {\n\n\t\t\t\t//uniforms.envMap.value = material.envMap; // part of uniforms common\n\t\t\t\tuniforms.envMapIntensity.value = material.envMapIntensity;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsPhysical( uniforms, material ) {\n\n\t\t\trefreshUniformsStandard( uniforms, material );\n\n\t\t\tuniforms.reflectivity.value = material.reflectivity; // also part of uniforms common\n\n\t\t\tuniforms.clearCoat.value = material.clearCoat;\n\t\t\tuniforms.clearCoatRoughness.value = material.clearCoatRoughness;\n\n\t\t}\n\n\t\tfunction refreshUniformsDepth( uniforms, material ) {\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsDistance( uniforms, material ) {\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t\tuniforms.referencePosition.value.copy( material.referencePosition );\n\t\t\tuniforms.nearDistance.value = material.nearDistance;\n\t\t\tuniforms.farDistance.value = material.farDistance;\n\n\t\t}\n\n\t\tfunction refreshUniformsNormal( uniforms, material ) {\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\t\t\t\tif ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\t\t\t\tif ( material.side === BackSide ) uniforms.normalScale.value.negate();\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// If uniforms are marked as clean, they don't need to be loaded to the GPU.\n\n\t\tfunction markUniformsLightsNeedsUpdate( uniforms, value ) {\n\n\t\t\tuniforms.ambientLightColor.needsUpdate = value;\n\n\t\t\tuniforms.directionalLights.needsUpdate = value;\n\t\t\tuniforms.pointLights.needsUpdate = value;\n\t\t\tuniforms.spotLights.needsUpdate = value;\n\t\t\tuniforms.rectAreaLights.needsUpdate = value;\n\t\t\tuniforms.hemisphereLights.needsUpdate = value;\n\n\t\t}\n\n\t\t// Textures\n\n\t\tfunction allocTextureUnit() {\n\n\t\t\tvar textureUnit = _usedTextureUnits;\n\n\t\t\tif ( textureUnit >= capabilities.maxTextures ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );\n\n\t\t\t}\n\n\t\t\t_usedTextureUnits += 1;\n\n\t\t\treturn textureUnit;\n\n\t\t}\n\n\t\tthis.allocTextureUnit = allocTextureUnit;\n\n\t\t// this.setTexture2D = setTexture2D;\n\t\tthis.setTexture2D = ( function () {\n\n\t\t\tvar warned = false;\n\n\t\t\t// backwards compatibility: peel texture.texture\n\t\t\treturn function setTexture2D( texture, slot ) {\n\n\t\t\t\tif ( texture && texture.isWebGLRenderTarget ) {\n\n\t\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead.\" );\n\t\t\t\t\t\twarned = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture = texture.texture;\n\n\t\t\t\t}\n\n\t\t\t\ttextures.setTexture2D( texture, slot );\n\n\t\t\t};\n\n\t\t}() );\n\n\t\tthis.setTexture = ( function () {\n\n\t\t\tvar warned = false;\n\n\t\t\treturn function setTexture( texture, slot ) {\n\n\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead.\" );\n\t\t\t\t\twarned = true;\n\n\t\t\t\t}\n\n\t\t\t\ttextures.setTexture2D( texture, slot );\n\n\t\t\t};\n\n\t\t}() );\n\n\t\tthis.setTextureCube = ( function () {\n\n\t\t\tvar warned = false;\n\n\t\t\treturn function setTextureCube( texture, slot ) {\n\n\t\t\t\t// backwards compatibility: peel texture.texture\n\t\t\t\tif ( texture && texture.isWebGLRenderTargetCube ) {\n\n\t\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead.\" );\n\t\t\t\t\t\twarned = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture = texture.texture;\n\n\t\t\t\t}\n\n\t\t\t\t// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture\n\t\t\t\t// TODO: unify these code paths\n\t\t\t\tif ( ( texture && texture.isCubeTexture ) ||\n\t\t\t\t\t( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {\n\n\t\t\t\t\t// CompressedTexture can have Array in image :/\n\n\t\t\t\t\t// this function alone should take care of cube textures\n\t\t\t\t\ttextures.setTextureCube( texture, slot );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// assumed: texture property of THREE.WebGLRenderTargetCube\n\n\t\t\t\t\ttextures.setTextureCubeDynamic( texture, slot );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() );\n\n\t\t//\n\n\t\tthis.setFramebuffer = function ( value ) {\n\n\t\t\t_framebuffer = value;\n\n\t\t};\n\n\t\tthis.getRenderTarget = function () {\n\n\t\t\treturn _currentRenderTarget;\n\n\t\t};\n\n\t\tthis.setRenderTarget = function ( renderTarget ) {\n\n\t\t\t_currentRenderTarget = renderTarget;\n\n\t\t\tif ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {\n\n\t\t\t\ttextures.setupRenderTarget( renderTarget );\n\n\t\t\t}\n\n\t\t\tvar framebuffer = _framebuffer;\n\t\t\tvar isCube = false;\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\tvar __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;\n\n\t\t\t\tif ( renderTarget.isWebGLRenderTargetCube ) {\n\n\t\t\t\t\tframebuffer = __webglFramebuffer[ renderTarget.activeCubeFace ];\n\t\t\t\t\tisCube = true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tframebuffer = __webglFramebuffer;\n\n\t\t\t\t}\n\n\t\t\t\t_currentViewport.copy( renderTarget.viewport );\n\t\t\t\t_currentScissor.copy( renderTarget.scissor );\n\t\t\t\t_currentScissorTest = renderTarget.scissorTest;\n\n\t\t\t} else {\n\n\t\t\t\t_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );\n\t\t\t\t_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );\n\t\t\t\t_currentScissorTest = _scissorTest;\n\n\t\t\t}\n\n\t\t\tif ( _currentFramebuffer !== framebuffer ) {\n\n\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\t\t\t\t_currentFramebuffer = framebuffer;\n\n\t\t\t}\n\n\t\t\tstate.viewport( _currentViewport );\n\t\t\tstate.scissor( _currentScissor );\n\t\t\tstate.setScissorTest( _currentScissorTest );\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel );\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {\n\n\t\t\tif ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar framebuffer = properties.get( renderTarget ).__webglFramebuffer;\n\n\t\t\tif ( framebuffer ) {\n\n\t\t\t\tvar restore = false;\n\n\t\t\t\tif ( framebuffer !== _currentFramebuffer ) {\n\n\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\n\t\t\t\t\trestore = true;\n\n\t\t\t\t}\n\n\t\t\t\ttry {\n\n\t\t\t\t\tvar texture = renderTarget.texture;\n\t\t\t\t\tvar textureFormat = texture.format;\n\t\t\t\t\tvar textureType = texture.type;\n\n\t\t\t\t\tif ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513)\n\t\t\t\t\t\t! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox\n\t\t\t\t\t\t! ( textureType === HalfFloatType && ( capabilities.isWebGL2 ? extensions.get( 'EXT_color_buffer_float' ) : extensions.get( 'EXT_color_buffer_half_float' ) ) ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {\n\n\t\t\t\t\t\t// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)\n\n\t\t\t\t\t\tif ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {\n\n\t\t\t\t\t\t\t_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t} finally {\n\n\t\t\t\t\tif ( restore ) {\n\n\t\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.copyFramebufferToTexture = function ( position, texture, level ) {\n\n\t\t\tvar width = texture.image.width;\n\t\t\tvar height = texture.image.height;\n\t\t\tvar glFormat = utils.convert( texture.format );\n\n\t\t\tthis.setTexture2D( texture, 0 );\n\n\t\t\t_gl.copyTexImage2D( _gl.TEXTURE_2D, level || 0, glFormat, position.x, position.y, width, height, 0 );\n\n\t\t};\n\n\t\tthis.copyTextureToTexture = function ( position, srcTexture, dstTexture, level ) {\n\n\t\t\tvar width = srcTexture.image.width;\n\t\t\tvar height = srcTexture.image.height;\n\t\t\tvar glFormat = utils.convert( dstTexture.format );\n\t\t\tvar glType = utils.convert( dstTexture.type );\n\n\t\t\tthis.setTexture2D( dstTexture, 0 );\n\n\t\t\tif ( srcTexture.isDataTexture ) {\n\n\t\t\t\t_gl.texSubImage2D( _gl.TEXTURE_2D, level || 0, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );\n\n\t\t\t} else {\n\n\t\t\t\t_gl.texSubImage2D( _gl.TEXTURE_2D, level || 0, position.x, position.y, glFormat, glType, srcTexture.image );\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction FogExp2( color, density ) {\n\n\t\tthis.name = '';\n\n\t\tthis.color = new Color( color );\n\t\tthis.density = ( density !== undefined ) ? density : 0.00025;\n\n\t}\n\n\tFogExp2.prototype.isFogExp2 = true;\n\n\tFogExp2.prototype.clone = function () {\n\n\t\treturn new FogExp2( this.color, this.density );\n\n\t};\n\n\tFogExp2.prototype.toJSON = function ( /* meta */ ) {\n\n\t\treturn {\n\t\t\ttype: 'FogExp2',\n\t\t\tcolor: this.color.getHex(),\n\t\t\tdensity: this.density\n\t\t};\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Fog( color, near, far ) {\n\n\t\tthis.name = '';\n\n\t\tthis.color = new Color( color );\n\n\t\tthis.near = ( near !== undefined ) ? near : 1;\n\t\tthis.far = ( far !== undefined ) ? far : 1000;\n\n\t}\n\n\tFog.prototype.isFog = true;\n\n\tFog.prototype.clone = function () {\n\n\t\treturn new Fog( this.color, this.near, this.far );\n\n\t};\n\n\tFog.prototype.toJSON = function ( /* meta */ ) {\n\n\t\treturn {\n\t\t\ttype: 'Fog',\n\t\t\tcolor: this.color.getHex(),\n\t\t\tnear: this.near,\n\t\t\tfar: this.far\n\t\t};\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Scene() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Scene';\n\n\t\tthis.background = null;\n\t\tthis.fog = null;\n\t\tthis.overrideMaterial = null;\n\n\t\tthis.autoUpdate = true; // checked by the renderer\n\n\t}\n\n\tScene.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Scene,\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source, recursive );\n\n\t\t\tif ( source.background !== null ) this.background = source.background.clone();\n\t\t\tif ( source.fog !== null ) this.fog = source.fog.clone();\n\t\t\tif ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();\n\n\t\t\tthis.autoUpdate = source.autoUpdate;\n\t\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tif ( this.background !== null ) data.object.background = this.background.toJSON( meta );\n\t\t\tif ( this.fog !== null ) data.object.fog = this.fog.toJSON();\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InterleavedBuffer( array, stride ) {\n\n\t\tthis.array = array;\n\t\tthis.stride = stride;\n\t\tthis.count = array !== undefined ? array.length / stride : 0;\n\n\t\tthis.dynamic = false;\n\t\tthis.updateRange = { offset: 0, count: - 1 };\n\n\t\tthis.version = 0;\n\n\t}\n\n\tObject.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( InterleavedBuffer.prototype, {\n\n\t\tisInterleavedBuffer: true,\n\n\t\tonUploadCallback: function () {},\n\n\t\tsetArray: function ( array ) {\n\n\t\t\tif ( Array.isArray( array ) ) {\n\n\t\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t\t}\n\n\t\t\tthis.count = array !== undefined ? array.length / this.stride : 0;\n\t\t\tthis.array = array;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetDynamic: function ( value ) {\n\n\t\t\tthis.dynamic = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.array = new source.array.constructor( source.array );\n\t\t\tthis.count = source.count;\n\t\t\tthis.stride = source.stride;\n\t\t\tthis.dynamic = source.dynamic;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyAt: function ( index1, attribute, index2 ) {\n\n\t\t\tindex1 *= this.stride;\n\t\t\tindex2 *= attribute.stride;\n\n\t\t\tfor ( var i = 0, l = this.stride; i < l; i ++ ) {\n\n\t\t\t\tthis.array[ index1 + i ] = attribute.array[ index2 + i ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tset: function ( value, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.array.set( value, offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tonUpload: function ( callback ) {\n\n\t\t\tthis.onUploadCallback = callback;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {\n\n\t\tthis.data = interleavedBuffer;\n\t\tthis.itemSize = itemSize;\n\t\tthis.offset = offset;\n\n\t\tthis.normalized = normalized === true;\n\n\t}\n\n\tObject.defineProperties( InterleavedBufferAttribute.prototype, {\n\n\t\tcount: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.data.count;\n\n\t\t\t}\n\n\t\t},\n\n\t\tarray: {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.data.array;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tObject.assign( InterleavedBufferAttribute.prototype, {\n\n\t\tisInterleavedBufferAttribute: true,\n\n\t\tsetX: function ( index, x ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset ] = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( index, y ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( index, z ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetW: function ( index, w ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetX: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset ];\n\n\t\t},\n\n\t\tgetY: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 1 ];\n\n\t\t},\n\n\t\tgetZ: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 2 ];\n\n\t\t},\n\n\t\tgetW: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 3 ];\n\n\t\t},\n\n\t\tsetXY: function ( index, x, y ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZ: function ( index, x, y, z ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\t\t\tthis.data.array[ index + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZW: function ( index, x, y, z, w ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\t\t\tthis.data.array[ index + 2 ] = z;\n\t\t\tthis.data.array[ index + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t *\tuvOffset: new THREE.Vector2(),\n\t *\tuvScale: new THREE.Vector2()\n\t * }\n\t */\n\n\tfunction SpriteMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'SpriteMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\t\tthis.map = null;\n\n\t\tthis.rotation = 0;\n\n\t\tthis.lights = false;\n\t\tthis.transparent = true;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tSpriteMaterial.prototype = Object.create( Material.prototype );\n\tSpriteMaterial.prototype.constructor = SpriteMaterial;\n\tSpriteMaterial.prototype.isSpriteMaterial = true;\n\n\tSpriteMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\t\tthis.map = source.map;\n\n\t\tthis.rotation = source.rotation;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tvar geometry;\n\n\tfunction Sprite( material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Sprite';\n\n\t\tif ( geometry === undefined ) {\n\n\t\t\tgeometry = new BufferGeometry();\n\n\t\t\tvar float32Array = new Float32Array( [\n\t\t\t\t- 0.5, - 0.5, 0, 0, 0,\n\t\t\t\t0.5, - 0.5, 0, 1, 0,\n\t\t\t\t0.5, 0.5, 0, 1, 1,\n\t\t\t\t- 0.5, 0.5, 0, 0, 1\n\t\t\t] );\n\n\t\t\tvar interleavedBuffer = new InterleavedBuffer( float32Array, 5 );\n\n\t\t\tgeometry.setIndex( [ 0, 1, 2,\t0, 2, 3 ] );\n\t\t\tgeometry.addAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) );\n\t\t\tgeometry.addAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) );\n\n\t\t}\n\n\t\tthis.geometry = geometry;\n\t\tthis.material = ( material !== undefined ) ? material : new SpriteMaterial();\n\n\t\tthis.center = new Vector2( 0.5, 0.5 );\n\n\t}\n\n\tSprite.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Sprite,\n\n\t\tisSprite: true,\n\n\t\traycast: ( function () {\n\n\t\t\tvar intersectPoint = new Vector3();\n\t\t\tvar worldScale = new Vector3();\n\t\t\tvar mvPosition = new Vector3();\n\n\t\t\tvar alignedPosition = new Vector2();\n\t\t\tvar rotatedPosition = new Vector2();\n\t\t\tvar viewWorldMatrix = new Matrix4();\n\n\t\t\tvar vA = new Vector3();\n\t\t\tvar vB = new Vector3();\n\t\t\tvar vC = new Vector3();\n\n\t\t\tfunction transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) {\n\n\t\t\t\t// compute position in camera space\n\t\t\t\talignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale );\n\n\t\t\t\t// to check if rotation is not zero\n\t\t\t\tif ( sin !== undefined ) {\n\n\t\t\t\t\trotatedPosition.x = ( cos * alignedPosition.x ) - ( sin * alignedPosition.y );\n\t\t\t\t\trotatedPosition.y = ( sin * alignedPosition.x ) + ( cos * alignedPosition.y );\n\n\t\t\t\t} else {\n\n\t\t\t\t\trotatedPosition.copy( alignedPosition );\n\n\t\t\t\t}\n\n\n\t\t\t\tvertexPosition.copy( mvPosition );\n\t\t\t\tvertexPosition.x += rotatedPosition.x;\n\t\t\t\tvertexPosition.y += rotatedPosition.y;\n\n\t\t\t\t// transform to world space\n\t\t\t\tvertexPosition.applyMatrix4( viewWorldMatrix );\n\n\t\t\t}\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tworldScale.setFromMatrixScale( this.matrixWorld );\n\t\t\t\tviewWorldMatrix.getInverse( this.modelViewMatrix ).premultiply( this.matrixWorld );\n\t\t\t\tmvPosition.setFromMatrixPosition( this.modelViewMatrix );\n\n\t\t\t\tvar rotation = this.material.rotation;\n\t\t\t\tvar sin, cos;\n\t\t\t\tif ( rotation !== 0 ) {\n\n\t\t\t\t\tcos = Math.cos( rotation );\n\t\t\t\t\tsin = Math.sin( rotation );\n\n\t\t\t\t}\n\n\t\t\t\tvar center = this.center;\n\n\t\t\t\ttransformVertex( vA.set( - 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\t\t\t\ttransformVertex( vB.set( 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\t\t\t\ttransformVertex( vC.set( 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\n\t\t\t\t// check first triangle\n\t\t\t\tvar intersect = raycaster.ray.intersectTriangle( vA, vB, vC, false, intersectPoint );\n\n\t\t\t\tif ( intersect === null ) {\n\n\t\t\t\t\t// check second triangle\n\t\t\t\t\ttransformVertex( vB.set( - 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );\n\t\t\t\t\tintersect = raycaster.ray.intersectTriangle( vA, vC, vB, false, intersectPoint );\n\t\t\t\t\tif ( intersect === null ) {\n\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectPoint );\n\n\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return;\n\n\t\t\t\tintersects.push( {\n\n\t\t\t\t\tdistance: distance,\n\t\t\t\t\tpoint: intersectPoint.clone(),\n\t\t\t\t\tface: null,\n\t\t\t\t\tobject: this\n\n\t\t\t\t} );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.material ).copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tif ( source.center !== undefined ) this.center.copy( source.center );\n\n\t\t\treturn this;\n\n\t\t}\n\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LOD() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'LOD';\n\n\t\tObject.defineProperties( this, {\n\t\t\tlevels: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: []\n\t\t\t}\n\t\t} );\n\n\t}\n\n\tLOD.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: LOD,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source, false );\n\n\t\t\tvar levels = source.levels;\n\n\t\t\tfor ( var i = 0, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tvar level = levels[ i ];\n\n\t\t\t\tthis.addLevel( level.object.clone(), level.distance );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddLevel: function ( object, distance ) {\n\n\t\t\tif ( distance === undefined ) distance = 0;\n\n\t\t\tdistance = Math.abs( distance );\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var l = 0; l < levels.length; l ++ ) {\n\n\t\t\t\tif ( distance < levels[ l ].distance ) {\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlevels.splice( l, 0, { distance: distance, object: object } );\n\n\t\t\tthis.add( object );\n\n\t\t},\n\n\t\tgetObjectForDistance: function ( distance ) {\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var i = 1, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tif ( distance < levels[ i ].distance ) {\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn levels[ i - 1 ].object;\n\n\t\t},\n\n\t\traycast: ( function () {\n\n\t\t\tvar matrixPosition = new Vector3();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tmatrixPosition.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( matrixPosition );\n\n\t\t\t\tthis.getObjectForDistance( distance ).raycast( raycaster, intersects );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tupdate: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function update( camera ) {\n\n\t\t\t\tvar levels = this.levels;\n\n\t\t\t\tif ( levels.length > 1 ) {\n\n\t\t\t\t\tv1.setFromMatrixPosition( camera.matrixWorld );\n\t\t\t\t\tv2.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\t\tvar distance = v1.distanceTo( v2 );\n\n\t\t\t\t\tlevels[ 0 ].object.visible = true;\n\n\t\t\t\t\tfor ( var i = 1, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tif ( distance >= levels[ i ].distance ) {\n\n\t\t\t\t\t\t\tlevels[ i - 1 ].object.visible = false;\n\t\t\t\t\t\t\tlevels[ i ].object.visible = true;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( ; i < l; i ++ ) {\n\n\t\t\t\t\t\tlevels[ i ].object.visible = false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.levels = [];\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var i = 0, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tvar level = levels[ i ];\n\n\t\t\t\tdata.object.levels.push( {\n\t\t\t\t\tobject: level.object.uuid,\n\t\t\t\t\tdistance: level.distance\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author michael guerrero / http://realitymeltdown.com\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction Skeleton( bones, boneInverses ) {\n\n\t\t// copy the bone array\n\n\t\tbones = bones || [];\n\n\t\tthis.bones = bones.slice( 0 );\n\t\tthis.boneMatrices = new Float32Array( this.bones.length * 16 );\n\n\t\t// use the supplied bone inverses or calculate the inverses\n\n\t\tif ( boneInverses === undefined ) {\n\n\t\t\tthis.calculateInverses();\n\n\t\t} else {\n\n\t\t\tif ( this.bones.length === boneInverses.length ) {\n\n\t\t\t\tthis.boneInverses = boneInverses.slice( 0 );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.Skeleton boneInverses is the wrong length.' );\n\n\t\t\t\tthis.boneInverses = [];\n\n\t\t\t\tfor ( var i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\t\tthis.boneInverses.push( new Matrix4() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tObject.assign( Skeleton.prototype, {\n\n\t\tcalculateInverses: function () {\n\n\t\t\tthis.boneInverses = [];\n\n\t\t\tfor ( var i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tvar inverse = new Matrix4();\n\n\t\t\t\tif ( this.bones[ i ] ) {\n\n\t\t\t\t\tinverse.getInverse( this.bones[ i ].matrixWorld );\n\n\t\t\t\t}\n\n\t\t\t\tthis.boneInverses.push( inverse );\n\n\t\t\t}\n\n\t\t},\n\n\t\tpose: function () {\n\n\t\t\tvar bone, i, il;\n\n\t\t\t// recover the bind-time world matrices\n\n\t\t\tfor ( i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tbone = this.bones[ i ];\n\n\t\t\t\tif ( bone ) {\n\n\t\t\t\t\tbone.matrixWorld.getInverse( this.boneInverses[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// compute the local matrices, positions, rotations and scales\n\n\t\t\tfor ( i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tbone = this.bones[ i ];\n\n\t\t\t\tif ( bone ) {\n\n\t\t\t\t\tif ( bone.parent && bone.parent.isBone ) {\n\n\t\t\t\t\t\tbone.matrix.getInverse( bone.parent.matrixWorld );\n\t\t\t\t\t\tbone.matrix.multiply( bone.matrixWorld );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tbone.matrix.copy( bone.matrixWorld );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbone.matrix.decompose( bone.position, bone.quaternion, bone.scale );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdate: ( function () {\n\n\t\t\tvar offsetMatrix = new Matrix4();\n\t\t\tvar identityMatrix = new Matrix4();\n\n\t\t\treturn function update() {\n\n\t\t\t\tvar bones = this.bones;\n\t\t\t\tvar boneInverses = this.boneInverses;\n\t\t\t\tvar boneMatrices = this.boneMatrices;\n\t\t\t\tvar boneTexture = this.boneTexture;\n\n\t\t\t\t// flatten bone matrices to array\n\n\t\t\t\tfor ( var i = 0, il = bones.length; i < il; i ++ ) {\n\n\t\t\t\t\t// compute the offset between the current and the original transform\n\n\t\t\t\t\tvar matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;\n\n\t\t\t\t\toffsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );\n\t\t\t\t\toffsetMatrix.toArray( boneMatrices, i * 16 );\n\n\t\t\t\t}\n\n\t\t\t\tif ( boneTexture !== undefined ) {\n\n\t\t\t\t\tboneTexture.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tclone: function () {\n\n\t\t\treturn new Skeleton( this.bones, this.boneInverses );\n\n\t\t},\n\n\t\tgetBoneByName: function ( name ) {\n\n\t\t\tfor ( var i = 0, il = this.bones.length; i < il; i ++ ) {\n\n\t\t\t\tvar bone = this.bones[ i ];\n\n\t\t\t\tif ( bone.name === name ) {\n\n\t\t\t\t\treturn bone;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn undefined;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction Bone() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Bone';\n\n\t}\n\n\tBone.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Bone,\n\n\t\tisBone: true\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction SkinnedMesh( geometry, material ) {\n\n\t\tMesh.call( this, geometry, material );\n\n\t\tthis.type = 'SkinnedMesh';\n\n\t\tthis.bindMode = 'attached';\n\t\tthis.bindMatrix = new Matrix4();\n\t\tthis.bindMatrixInverse = new Matrix4();\n\n\t\tvar bones = this.initBones();\n\t\tvar skeleton = new Skeleton( bones );\n\n\t\tthis.bind( skeleton, this.matrixWorld );\n\n\t\tthis.normalizeSkinWeights();\n\n\t}\n\n\tSkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {\n\n\t\tconstructor: SkinnedMesh,\n\n\t\tisSkinnedMesh: true,\n\n\t\tinitBones: function () {\n\n\t\t\tvar bones = [], bone, gbone;\n\t\t\tvar i, il;\n\n\t\t\tif ( this.geometry && this.geometry.bones !== undefined ) {\n\n\t\t\t\t// first, create array of 'Bone' objects from geometry data\n\n\t\t\t\tfor ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {\n\n\t\t\t\t\tgbone = this.geometry.bones[ i ];\n\n\t\t\t\t\t// create new 'Bone' object\n\n\t\t\t\t\tbone = new Bone();\n\t\t\t\t\tbones.push( bone );\n\n\t\t\t\t\t// apply values\n\n\t\t\t\t\tbone.name = gbone.name;\n\t\t\t\t\tbone.position.fromArray( gbone.pos );\n\t\t\t\t\tbone.quaternion.fromArray( gbone.rotq );\n\t\t\t\t\tif ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );\n\n\t\t\t\t}\n\n\t\t\t\t// second, create bone hierarchy\n\n\t\t\t\tfor ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {\n\n\t\t\t\t\tgbone = this.geometry.bones[ i ];\n\n\t\t\t\t\tif ( ( gbone.parent !== - 1 ) && ( gbone.parent !== null ) && ( bones[ gbone.parent ] !== undefined ) ) {\n\n\t\t\t\t\t\t// subsequent bones in the hierarchy\n\n\t\t\t\t\t\tbones[ gbone.parent ].add( bones[ i ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// topmost bone, immediate child of the skinned mesh\n\n\t\t\t\t\t\tthis.add( bones[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// now the bones are part of the scene graph and children of the skinned mesh.\n\t\t\t// let's update the corresponding matrices\n\n\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\treturn bones;\n\n\t\t},\n\n\t\tbind: function ( skeleton, bindMatrix ) {\n\n\t\t\tthis.skeleton = skeleton;\n\n\t\t\tif ( bindMatrix === undefined ) {\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.skeleton.calculateInverses();\n\n\t\t\t\tbindMatrix = this.matrixWorld;\n\n\t\t\t}\n\n\t\t\tthis.bindMatrix.copy( bindMatrix );\n\t\t\tthis.bindMatrixInverse.getInverse( bindMatrix );\n\n\t\t},\n\n\t\tpose: function () {\n\n\t\t\tthis.skeleton.pose();\n\n\t\t},\n\n\t\tnormalizeSkinWeights: function () {\n\n\t\t\tvar scale, i;\n\n\t\t\tif ( this.geometry && this.geometry.isGeometry ) {\n\n\t\t\t\tfor ( i = 0; i < this.geometry.skinWeights.length; i ++ ) {\n\n\t\t\t\t\tvar sw = this.geometry.skinWeights[ i ];\n\n\t\t\t\t\tscale = 1.0 / sw.manhattanLength();\n\n\t\t\t\t\tif ( scale !== Infinity ) {\n\n\t\t\t\t\t\tsw.multiplyScalar( scale );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tsw.set( 1, 0, 0, 0 ); // do something reasonable\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else if ( this.geometry && this.geometry.isBufferGeometry ) {\n\n\t\t\t\tvar vec = new Vector4();\n\n\t\t\t\tvar skinWeight = this.geometry.attributes.skinWeight;\n\n\t\t\t\tfor ( i = 0; i < skinWeight.count; i ++ ) {\n\n\t\t\t\t\tvec.x = skinWeight.getX( i );\n\t\t\t\t\tvec.y = skinWeight.getY( i );\n\t\t\t\t\tvec.z = skinWeight.getZ( i );\n\t\t\t\t\tvec.w = skinWeight.getW( i );\n\n\t\t\t\t\tscale = 1.0 / vec.manhattanLength();\n\n\t\t\t\t\tif ( scale !== Infinity ) {\n\n\t\t\t\t\t\tvec.multiplyScalar( scale );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tvec.set( 1, 0, 0, 0 ); // do something reasonable\n\n\t\t\t\t\t}\n\n\t\t\t\t\tskinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdateMatrixWorld: function ( force ) {\n\n\t\t\tMesh.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\tif ( this.bindMode === 'attached' ) {\n\n\t\t\t\tthis.bindMatrixInverse.getInverse( this.matrixWorld );\n\n\t\t\t} else if ( this.bindMode === 'detached' ) {\n\n\t\t\t\tthis.bindMatrixInverse.getInverse( this.bindMatrix );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * linewidth: ,\n\t * linecap: \"round\",\n\t * linejoin: \"round\"\n\t * }\n\t */\n\n\tfunction LineBasicMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'LineBasicMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\n\t\tthis.linewidth = 1;\n\t\tthis.linecap = 'round';\n\t\tthis.linejoin = 'round';\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tLineBasicMaterial.prototype = Object.create( Material.prototype );\n\tLineBasicMaterial.prototype.constructor = LineBasicMaterial;\n\n\tLineBasicMaterial.prototype.isLineBasicMaterial = true;\n\n\tLineBasicMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.linewidth = source.linewidth;\n\t\tthis.linecap = source.linecap;\n\t\tthis.linejoin = source.linejoin;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Line( geometry, material, mode ) {\n\n\t\tif ( mode === 1 ) {\n\n\t\t\tconsole.error( 'THREE.Line: parameter THREE.LinePieces no longer supported. Use THREE.LineSegments instead.' );\n\n\t\t}\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Line';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );\n\n\t}\n\n\tLine.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Line,\n\n\t\tisLine: true,\n\n\t\tcomputeLineDistances: ( function () {\n\n\t\t\tvar start = new Vector3();\n\t\t\tvar end = new Vector3();\n\n\t\t\treturn function computeLineDistances() {\n\n\t\t\t\tvar geometry = this.geometry;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\t// we assume non-indexed geometry\n\n\t\t\t\t\tif ( geometry.index === null ) {\n\n\t\t\t\t\t\tvar positionAttribute = geometry.attributes.position;\n\t\t\t\t\t\tvar lineDistances = [ 0 ];\n\n\t\t\t\t\t\tfor ( var i = 1, l = positionAttribute.count; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tstart.fromBufferAttribute( positionAttribute, i - 1 );\n\t\t\t\t\t\t\tend.fromBufferAttribute( positionAttribute, i );\n\n\t\t\t\t\t\t\tlineDistances[ i ] = lineDistances[ i - 1 ];\n\t\t\t\t\t\t\tlineDistances[ i ] += start.distanceTo( end );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar lineDistances = geometry.lineDistances;\n\n\t\t\t\t\tlineDistances[ 0 ] = 0;\n\n\t\t\t\t\tfor ( var i = 1, l = vertices.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tlineDistances[ i ] = lineDistances[ i - 1 ];\n\t\t\t\t\t\tlineDistances[ i ] += vertices[ i - 1 ].distanceTo( vertices[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar precision = raycaster.linePrecision;\n\t\t\t\tvar precisionSq = precision * precision;\n\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\tvar vStart = new Vector3();\n\t\t\t\tvar vEnd = new Vector3();\n\t\t\t\tvar interSegment = new Vector3();\n\t\t\t\tvar interRay = new Vector3();\n\t\t\t\tvar step = ( this && this.isLineSegments ) ? 2 : 1;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar attributes = geometry.attributes;\n\t\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\t\tfor ( var i = 0, l = indices.length - 1; i < l; i += step ) {\n\n\t\t\t\t\t\t\tvar a = indices[ i ];\n\t\t\t\t\t\t\tvar b = indices[ i + 1 ];\n\n\t\t\t\t\t\t\tvStart.fromArray( positions, a * 3 );\n\t\t\t\t\t\t\tvEnd.fromArray( positions, b * 3 );\n\n\t\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );\n\n\t\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {\n\n\t\t\t\t\t\t\tvStart.fromArray( positions, 3 * i );\n\t\t\t\t\t\t\tvEnd.fromArray( positions, 3 * i + 3 );\n\n\t\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );\n\n\t\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar nbVertices = vertices.length;\n\n\t\t\t\t\tfor ( var i = 0; i < nbVertices - 1; i += step ) {\n\n\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );\n\n\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LineSegments( geometry, material ) {\n\n\t\tLine.call( this, geometry, material );\n\n\t\tthis.type = 'LineSegments';\n\n\t}\n\n\tLineSegments.prototype = Object.assign( Object.create( Line.prototype ), {\n\n\t\tconstructor: LineSegments,\n\n\t\tisLineSegments: true,\n\n\t\tcomputeLineDistances: ( function () {\n\n\t\t\tvar start = new Vector3();\n\t\t\tvar end = new Vector3();\n\n\t\t\treturn function computeLineDistances() {\n\n\t\t\t\tvar geometry = this.geometry;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\t// we assume non-indexed geometry\n\n\t\t\t\t\tif ( geometry.index === null ) {\n\n\t\t\t\t\t\tvar positionAttribute = geometry.attributes.position;\n\t\t\t\t\t\tvar lineDistances = [];\n\n\t\t\t\t\t\tfor ( var i = 0, l = positionAttribute.count; i < l; i += 2 ) {\n\n\t\t\t\t\t\t\tstart.fromBufferAttribute( positionAttribute, i );\n\t\t\t\t\t\t\tend.fromBufferAttribute( positionAttribute, i + 1 );\n\n\t\t\t\t\t\t\tlineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];\n\t\t\t\t\t\t\tlineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar lineDistances = geometry.lineDistances;\n\n\t\t\t\t\tfor ( var i = 0, l = vertices.length; i < l; i += 2 ) {\n\n\t\t\t\t\t\tstart.copy( vertices[ i ] );\n\t\t\t\t\t\tend.copy( vertices[ i + 1 ] );\n\n\t\t\t\t\t\tlineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];\n\t\t\t\t\t\tlineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}() )\n\n\t} );\n\n\t/**\n\t * @author mgreter / http://github.com/mgreter\n\t */\n\n\tfunction LineLoop( geometry, material ) {\n\n\t\tLine.call( this, geometry, material );\n\n\t\tthis.type = 'LineLoop';\n\n\t}\n\n\tLineLoop.prototype = Object.assign( Object.create( Line.prototype ), {\n\n\t\tconstructor: LineLoop,\n\n\t\tisLineLoop: true,\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t * size: ,\n\t * sizeAttenuation: \n\t *\n\t * morphTargets: \n\t * }\n\t */\n\n\tfunction PointsMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'PointsMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\n\t\tthis.map = null;\n\n\t\tthis.size = 1;\n\t\tthis.sizeAttenuation = true;\n\n\t\tthis.morphTargets = false;\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tPointsMaterial.prototype = Object.create( Material.prototype );\n\tPointsMaterial.prototype.constructor = PointsMaterial;\n\n\tPointsMaterial.prototype.isPointsMaterial = true;\n\n\tPointsMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.size = source.size;\n\t\tthis.sizeAttenuation = source.sizeAttenuation;\n\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Points( geometry, material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Points';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );\n\n\t}\n\n\tPoints.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Points,\n\n\t\tisPoints: true,\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar object = this;\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\t\t\t\tvar threshold = raycaster.params.Points.threshold;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\t\t\t\tsphere.radius += threshold;\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\tvar localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );\n\t\t\t\tvar localThresholdSq = localThreshold * localThreshold;\n\t\t\t\tvar position = new Vector3();\n\t\t\t\tvar intersectPoint = new Vector3();\n\n\t\t\t\tfunction testPoint( point, index ) {\n\n\t\t\t\t\tvar rayPointDistanceSq = ray.distanceSqToPoint( point );\n\n\t\t\t\t\tif ( rayPointDistanceSq < localThresholdSq ) {\n\n\t\t\t\t\t\tray.closestPointToPoint( point, intersectPoint );\n\t\t\t\t\t\tintersectPoint.applyMatrix4( matrixWorld );\n\n\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectPoint );\n\n\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return;\n\n\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\tdistanceToRay: Math.sqrt( rayPointDistanceSq ),\n\t\t\t\t\t\t\tpoint: intersectPoint.clone(),\n\t\t\t\t\t\t\tindex: index,\n\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\tobject: object\n\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar attributes = geometry.attributes;\n\t\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\t\tfor ( var i = 0, il = indices.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\tvar a = indices[ i ];\n\n\t\t\t\t\t\t\tposition.fromArray( positions, a * 3 );\n\n\t\t\t\t\t\t\ttestPoint( position, a );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, l = positions.length / 3; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tposition.fromArray( positions, i * 3 );\n\n\t\t\t\t\t\t\ttestPoint( position, i );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\n\t\t\t\t\tfor ( var i = 0, l = vertices.length; i < l; i ++ ) {\n\n\t\t\t\t\t\ttestPoint( vertices[ i ], i );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {\n\n\t\tTexture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.generateMipmaps = false;\n\n\t}\n\n\tVideoTexture.prototype = Object.assign( Object.create( Texture.prototype ), {\n\n\t\tconstructor: VideoTexture,\n\n\t\tisVideoTexture: true,\n\n\t\tupdate: function () {\n\n\t\t\tvar video = this.image;\n\n\t\t\tif ( video.readyState >= video.HAVE_CURRENT_DATA ) {\n\n\t\t\t\tthis.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.image = { width: width, height: height };\n\t\tthis.mipmaps = mipmaps;\n\n\t\t// no flipping for cube textures\n\t\t// (also flipping doesn't work for compressed textures )\n\n\t\tthis.flipY = false;\n\n\t\t// can't generate mipmaps for compressed textures\n\t\t// mips must be embedded in DDS files\n\n\t\tthis.generateMipmaps = false;\n\n\t}\n\n\tCompressedTexture.prototype = Object.create( Texture.prototype );\n\tCompressedTexture.prototype.constructor = CompressedTexture;\n\n\tCompressedTexture.prototype.isCompressedTexture = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {\n\n\t\tTexture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.needsUpdate = true;\n\n\t}\n\n\tCanvasTexture.prototype = Object.create( Texture.prototype );\n\tCanvasTexture.prototype.constructor = CanvasTexture;\n\tCanvasTexture.prototype.isCanvasTexture = true;\n\n\t/**\n\t * @author Matt DesLauriers / @mattdesl\n\t * @author atix / arthursilber.de\n\t */\n\n\tfunction DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {\n\n\t\tformat = format !== undefined ? format : DepthFormat;\n\n\t\tif ( format !== DepthFormat && format !== DepthStencilFormat ) {\n\n\t\t\tthrow new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );\n\n\t\t}\n\n\t\tif ( type === undefined && format === DepthFormat ) type = UnsignedShortType;\n\t\tif ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.image = { width: width, height: height };\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : NearestFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : NearestFilter;\n\n\t\tthis.flipY = false;\n\t\tthis.generateMipmaps\t= false;\n\n\t}\n\n\tDepthTexture.prototype = Object.create( Texture.prototype );\n\tDepthTexture.prototype.constructor = DepthTexture;\n\tDepthTexture.prototype.isDepthTexture = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction WireframeGeometry( geometry ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'WireframeGeometry';\n\n\t\t// buffer\n\n\t\tvar vertices = [];\n\n\t\t// helper variables\n\n\t\tvar i, j, l, o, ol;\n\t\tvar edge = [ 0, 0 ], edges = {}, e, edge1, edge2;\n\t\tvar key, keys = [ 'a', 'b', 'c' ];\n\t\tvar vertex;\n\n\t\t// different logic for Geometry and BufferGeometry\n\n\t\tif ( geometry && geometry.isGeometry ) {\n\n\t\t\t// create a data structure that contains all edges without duplicates\n\n\t\t\tvar faces = geometry.faces;\n\n\t\t\tfor ( i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\tedge1 = face[ keys[ j ] ];\n\t\t\t\t\tedge2 = face[ keys[ ( j + 1 ) % 3 ] ];\n\t\t\t\t\tedge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates\n\t\t\t\t\tedge[ 1 ] = Math.max( edge1, edge2 );\n\n\t\t\t\t\tkey = edge[ 0 ] + ',' + edge[ 1 ];\n\n\t\t\t\t\tif ( edges[ key ] === undefined ) {\n\n\t\t\t\t\t\tedges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// generate vertices\n\n\t\t\tfor ( key in edges ) {\n\n\t\t\t\te = edges[ key ];\n\n\t\t\t\tvertex = geometry.vertices[ e.index1 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\tvertex = geometry.vertices[ e.index2 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t} else if ( geometry && geometry.isBufferGeometry ) {\n\n\t\t\tvar position, indices, groups;\n\t\t\tvar group, start, count;\n\t\t\tvar index1, index2;\n\n\t\t\tvertex = new Vector3();\n\n\t\t\tif ( geometry.index !== null ) {\n\n\t\t\t\t// indexed BufferGeometry\n\n\t\t\t\tposition = geometry.attributes.position;\n\t\t\t\tindices = geometry.index;\n\t\t\t\tgroups = geometry.groups;\n\n\t\t\t\tif ( groups.length === 0 ) {\n\n\t\t\t\t\tgroups = [ { start: 0, count: indices.count, materialIndex: 0 } ];\n\n\t\t\t\t}\n\n\t\t\t\t// create a data structure that contains all eges without duplicates\n\n\t\t\t\tfor ( o = 0, ol = groups.length; o < ol; ++ o ) {\n\n\t\t\t\t\tgroup = groups[ o ];\n\n\t\t\t\t\tstart = group.start;\n\t\t\t\t\tcount = group.count;\n\n\t\t\t\t\tfor ( i = start, l = ( start + count ); i < l; i += 3 ) {\n\n\t\t\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t\tedge1 = indices.getX( i + j );\n\t\t\t\t\t\t\tedge2 = indices.getX( i + ( j + 1 ) % 3 );\n\t\t\t\t\t\t\tedge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates\n\t\t\t\t\t\t\tedge[ 1 ] = Math.max( edge1, edge2 );\n\n\t\t\t\t\t\t\tkey = edge[ 0 ] + ',' + edge[ 1 ];\n\n\t\t\t\t\t\t\tif ( edges[ key ] === undefined ) {\n\n\t\t\t\t\t\t\t\tedges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// generate vertices\n\n\t\t\t\tfor ( key in edges ) {\n\n\t\t\t\t\te = edges[ key ];\n\n\t\t\t\t\tvertex.fromBufferAttribute( position, e.index1 );\n\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\tvertex.fromBufferAttribute( position, e.index2 );\n\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// non-indexed BufferGeometry\n\n\t\t\t\tposition = geometry.attributes.position;\n\n\t\t\t\tfor ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {\n\n\t\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t// three edges per triangle, an edge is represented as (index1, index2)\n\t\t\t\t\t\t// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)\n\n\t\t\t\t\t\tindex1 = 3 * i + j;\n\t\t\t\t\t\tvertex.fromBufferAttribute( position, index1 );\n\t\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\t\tindex2 = 3 * i + ( ( j + 1 ) % 3 );\n\t\t\t\t\t\tvertex.fromBufferAttribute( position, index2 );\n\t\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\n\t}\n\n\tWireframeGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tWireframeGeometry.prototype.constructor = WireframeGeometry;\n\n\t/**\n\t * @author zz85 / https://github.com/zz85\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * Parametric Surfaces Geometry\n\t * based on the brilliant article by @prideout http://prideout.net/blog/?p=44\n\t */\n\n\t// ParametricGeometry\n\n\tfunction ParametricGeometry( func, slices, stacks ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ParametricGeometry';\n\n\t\tthis.parameters = {\n\t\t\tfunc: func,\n\t\t\tslices: slices,\n\t\t\tstacks: stacks\n\t\t};\n\n\t\tthis.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tParametricGeometry.prototype = Object.create( Geometry.prototype );\n\tParametricGeometry.prototype.constructor = ParametricGeometry;\n\n\t// ParametricBufferGeometry\n\n\tfunction ParametricBufferGeometry( func, slices, stacks ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'ParametricBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tfunc: func,\n\t\t\tslices: slices,\n\t\t\tstacks: stacks\n\t\t};\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\tvar EPS = 0.00001;\n\n\t\tvar normal = new Vector3();\n\n\t\tvar p0 = new Vector3(), p1 = new Vector3();\n\t\tvar pu = new Vector3(), pv = new Vector3();\n\n\t\tvar i, j;\n\n\t\tif ( func.length < 3 ) {\n\n\t\t\tconsole.error( 'THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.' );\n\n\t\t}\n\n\t\t// generate vertices, normals and uvs\n\n\t\tvar sliceCount = slices + 1;\n\n\t\tfor ( i = 0; i <= stacks; i ++ ) {\n\n\t\t\tvar v = i / stacks;\n\n\t\t\tfor ( j = 0; j <= slices; j ++ ) {\n\n\t\t\t\tvar u = j / slices;\n\n\t\t\t\t// vertex\n\n\t\t\t\tfunc( u, v, p0 );\n\t\t\t\tvertices.push( p0.x, p0.y, p0.z );\n\n\t\t\t\t// normal\n\n\t\t\t\t// approximate tangent vectors via finite differences\n\n\t\t\t\tif ( u - EPS >= 0 ) {\n\n\t\t\t\t\tfunc( u - EPS, v, p1 );\n\t\t\t\t\tpu.subVectors( p0, p1 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfunc( u + EPS, v, p1 );\n\t\t\t\t\tpu.subVectors( p1, p0 );\n\n\t\t\t\t}\n\n\t\t\t\tif ( v - EPS >= 0 ) {\n\n\t\t\t\t\tfunc( u, v - EPS, p1 );\n\t\t\t\t\tpv.subVectors( p0, p1 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfunc( u, v + EPS, p1 );\n\t\t\t\t\tpv.subVectors( p1, p0 );\n\n\t\t\t\t}\n\n\t\t\t\t// cross product of tangent vectors returns surface normal\n\n\t\t\t\tnormal.crossVectors( pu, pv ).normalize();\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( u, v );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( i = 0; i < stacks; i ++ ) {\n\n\t\t\tfor ( j = 0; j < slices; j ++ ) {\n\n\t\t\t\tvar a = i * sliceCount + j;\n\t\t\t\tvar b = i * sliceCount + j + 1;\n\t\t\t\tvar c = ( i + 1 ) * sliceCount + j + 1;\n\t\t\t\tvar d = ( i + 1 ) * sliceCount + j;\n\n\t\t\t\t// faces one and two\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;\n\n\t/**\n\t * @author clockworkgeek / https://github.com/clockworkgeek\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// PolyhedronGeometry\n\n\tfunction PolyhedronGeometry( vertices, indices, radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'PolyhedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tvertices: vertices,\n\t\t\tindices: indices,\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tPolyhedronGeometry.prototype = Object.create( Geometry.prototype );\n\tPolyhedronGeometry.prototype.constructor = PolyhedronGeometry;\n\n\t// PolyhedronBufferGeometry\n\n\tfunction PolyhedronBufferGeometry( vertices, indices, radius, detail ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'PolyhedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tvertices: vertices,\n\t\t\tindices: indices,\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tradius = radius || 1;\n\t\tdetail = detail || 0;\n\n\t\t// default buffer data\n\n\t\tvar vertexBuffer = [];\n\t\tvar uvBuffer = [];\n\n\t\t// the subdivision creates the vertex buffer data\n\n\t\tsubdivide( detail );\n\n\t\t// all vertices should lie on a conceptual sphere with a given radius\n\n\t\tappplyRadius( radius );\n\n\t\t// finally, create the uv data\n\n\t\tgenerateUVs();\n\n\t\t// build non-indexed geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );\n\n\t\tif ( detail === 0 ) {\n\n\t\t\tthis.computeVertexNormals(); // flat normals\n\n\t\t} else {\n\n\t\t\tthis.normalizeNormals(); // smooth normals\n\n\t\t}\n\n\t\t// helper functions\n\n\t\tfunction subdivide( detail ) {\n\n\t\t\tvar a = new Vector3();\n\t\t\tvar b = new Vector3();\n\t\t\tvar c = new Vector3();\n\n\t\t\t// iterate over all faces and apply a subdivison with the given detail value\n\n\t\t\tfor ( var i = 0; i < indices.length; i += 3 ) {\n\n\t\t\t\t// get the vertices of the face\n\n\t\t\t\tgetVertexByIndex( indices[ i + 0 ], a );\n\t\t\t\tgetVertexByIndex( indices[ i + 1 ], b );\n\t\t\t\tgetVertexByIndex( indices[ i + 2 ], c );\n\n\t\t\t\t// perform subdivision\n\n\t\t\t\tsubdivideFace( a, b, c, detail );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction subdivideFace( a, b, c, detail ) {\n\n\t\t\tvar cols = Math.pow( 2, detail );\n\n\t\t\t// we use this multidimensional array as a data structure for creating the subdivision\n\n\t\t\tvar v = [];\n\n\t\t\tvar i, j;\n\n\t\t\t// construct all of the vertices for this subdivision\n\n\t\t\tfor ( i = 0; i <= cols; i ++ ) {\n\n\t\t\t\tv[ i ] = [];\n\n\t\t\t\tvar aj = a.clone().lerp( c, i / cols );\n\t\t\t\tvar bj = b.clone().lerp( c, i / cols );\n\n\t\t\t\tvar rows = cols - i;\n\n\t\t\t\tfor ( j = 0; j <= rows; j ++ ) {\n\n\t\t\t\t\tif ( j === 0 && i === cols ) {\n\n\t\t\t\t\t\tv[ i ][ j ] = aj;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tv[ i ][ j ] = aj.clone().lerp( bj, j / rows );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// construct all of the faces\n\n\t\t\tfor ( i = 0; i < cols; i ++ ) {\n\n\t\t\t\tfor ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {\n\n\t\t\t\t\tvar k = Math.floor( j / 2 );\n\n\t\t\t\t\tif ( j % 2 === 0 ) {\n\n\t\t\t\t\t\tpushVertex( v[ i ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k ] );\n\t\t\t\t\t\tpushVertex( v[ i ][ k ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tpushVertex( v[ i ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction appplyRadius( radius ) {\n\n\t\t\tvar vertex = new Vector3();\n\n\t\t\t// iterate over the entire buffer and apply the radius to each vertex\n\n\t\t\tfor ( var i = 0; i < vertexBuffer.length; i += 3 ) {\n\n\t\t\t\tvertex.x = vertexBuffer[ i + 0 ];\n\t\t\t\tvertex.y = vertexBuffer[ i + 1 ];\n\t\t\t\tvertex.z = vertexBuffer[ i + 2 ];\n\n\t\t\t\tvertex.normalize().multiplyScalar( radius );\n\n\t\t\t\tvertexBuffer[ i + 0 ] = vertex.x;\n\t\t\t\tvertexBuffer[ i + 1 ] = vertex.y;\n\t\t\t\tvertexBuffer[ i + 2 ] = vertex.z;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateUVs() {\n\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tfor ( var i = 0; i < vertexBuffer.length; i += 3 ) {\n\n\t\t\t\tvertex.x = vertexBuffer[ i + 0 ];\n\t\t\t\tvertex.y = vertexBuffer[ i + 1 ];\n\t\t\t\tvertex.z = vertexBuffer[ i + 2 ];\n\n\t\t\t\tvar u = azimuth( vertex ) / 2 / Math.PI + 0.5;\n\t\t\t\tvar v = inclination( vertex ) / Math.PI + 0.5;\n\t\t\t\tuvBuffer.push( u, 1 - v );\n\n\t\t\t}\n\n\t\t\tcorrectUVs();\n\n\t\t\tcorrectSeam();\n\n\t\t}\n\n\t\tfunction correctSeam() {\n\n\t\t\t// handle case when face straddles the seam, see #3269\n\n\t\t\tfor ( var i = 0; i < uvBuffer.length; i += 6 ) {\n\n\t\t\t\t// uv data of a single face\n\n\t\t\t\tvar x0 = uvBuffer[ i + 0 ];\n\t\t\t\tvar x1 = uvBuffer[ i + 2 ];\n\t\t\t\tvar x2 = uvBuffer[ i + 4 ];\n\n\t\t\t\tvar max = Math.max( x0, x1, x2 );\n\t\t\t\tvar min = Math.min( x0, x1, x2 );\n\n\t\t\t\t// 0.9 is somewhat arbitrary\n\n\t\t\t\tif ( max > 0.9 && min < 0.1 ) {\n\n\t\t\t\t\tif ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;\n\t\t\t\t\tif ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;\n\t\t\t\t\tif ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction pushVertex( vertex ) {\n\n\t\t\tvertexBuffer.push( vertex.x, vertex.y, vertex.z );\n\n\t\t}\n\n\t\tfunction getVertexByIndex( index, vertex ) {\n\n\t\t\tvar stride = index * 3;\n\n\t\t\tvertex.x = vertices[ stride + 0 ];\n\t\t\tvertex.y = vertices[ stride + 1 ];\n\t\t\tvertex.z = vertices[ stride + 2 ];\n\n\t\t}\n\n\t\tfunction correctUVs() {\n\n\t\t\tvar a = new Vector3();\n\t\t\tvar b = new Vector3();\n\t\t\tvar c = new Vector3();\n\n\t\t\tvar centroid = new Vector3();\n\n\t\t\tvar uvA = new Vector2();\n\t\t\tvar uvB = new Vector2();\n\t\t\tvar uvC = new Vector2();\n\n\t\t\tfor ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {\n\n\t\t\t\ta.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );\n\t\t\t\tb.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );\n\t\t\t\tc.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );\n\n\t\t\t\tuvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );\n\t\t\t\tuvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );\n\t\t\t\tuvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );\n\n\t\t\t\tcentroid.copy( a ).add( b ).add( c ).divideScalar( 3 );\n\n\t\t\t\tvar azi = azimuth( centroid );\n\n\t\t\t\tcorrectUV( uvA, j + 0, a, azi );\n\t\t\t\tcorrectUV( uvB, j + 2, b, azi );\n\t\t\t\tcorrectUV( uvC, j + 4, c, azi );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction correctUV( uv, stride, vector, azimuth ) {\n\n\t\t\tif ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {\n\n\t\t\t\tuvBuffer[ stride ] = uv.x - 1;\n\n\t\t\t}\n\n\t\t\tif ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {\n\n\t\t\t\tuvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Angle around the Y axis, counter-clockwise when looking from above.\n\n\t\tfunction azimuth( vector ) {\n\n\t\t\treturn Math.atan2( vector.z, - vector.x );\n\n\t\t}\n\n\n\t\t// Angle above the XZ plane.\n\n\t\tfunction inclination( vector ) {\n\n\t\t\treturn Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );\n\n\t\t}\n\n\t}\n\n\tPolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tPolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// TetrahedronGeometry\n\n\tfunction TetrahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TetrahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTetrahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tTetrahedronGeometry.prototype.constructor = TetrahedronGeometry;\n\n\t// TetrahedronBufferGeometry\n\n\tfunction TetrahedronBufferGeometry( radius, detail ) {\n\n\t\tvar vertices = [\n\t\t\t1, 1, 1, \t- 1, - 1, 1, \t- 1, 1, - 1, \t1, - 1, - 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t2, 1, 0, \t0, 3, 2,\t1, 3, 0,\t2, 3, 1\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'TetrahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tTetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tTetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// OctahedronGeometry\n\n\tfunction OctahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'OctahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tOctahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tOctahedronGeometry.prototype.constructor = OctahedronGeometry;\n\n\t// OctahedronBufferGeometry\n\n\tfunction OctahedronBufferGeometry( radius, detail ) {\n\n\t\tvar vertices = [\n\t\t\t1, 0, 0, \t- 1, 0, 0,\t0, 1, 0,\n\t\t\t0, - 1, 0, \t0, 0, 1,\t0, 0, - 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t0, 2, 4,\t0, 4, 3,\t0, 3, 5,\n\t\t\t0, 5, 2,\t1, 2, 5,\t1, 5, 3,\n\t\t\t1, 3, 4,\t1, 4, 2\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'OctahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tOctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tOctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// IcosahedronGeometry\n\n\tfunction IcosahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'IcosahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tIcosahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tIcosahedronGeometry.prototype.constructor = IcosahedronGeometry;\n\n\t// IcosahedronBufferGeometry\n\n\tfunction IcosahedronBufferGeometry( radius, detail ) {\n\n\t\tvar t = ( 1 + Math.sqrt( 5 ) ) / 2;\n\n\t\tvar vertices = [\n\t\t\t- 1, t, 0, \t1, t, 0, \t- 1, - t, 0, \t1, - t, 0,\n\t\t\t 0, - 1, t, \t0, 1, t,\t0, - 1, - t, \t0, 1, - t,\n\t\t\t t, 0, - 1, \tt, 0, 1, \t- t, 0, - 1, \t- t, 0, 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t 0, 11, 5, \t0, 5, 1, \t0, 1, 7, \t0, 7, 10, \t0, 10, 11,\n\t\t\t 1, 5, 9, \t5, 11, 4,\t11, 10, 2,\t10, 7, 6,\t7, 1, 8,\n\t\t\t 3, 9, 4, \t3, 4, 2,\t3, 2, 6,\t3, 6, 8,\t3, 8, 9,\n\t\t\t 4, 9, 5, \t2, 4, 11,\t6, 2, 10,\t8, 6, 7,\t9, 8, 1\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'IcosahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tIcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tIcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;\n\n\t/**\n\t * @author Abe Pazos / https://hamoid.com\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// DodecahedronGeometry\n\n\tfunction DodecahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'DodecahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tDodecahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tDodecahedronGeometry.prototype.constructor = DodecahedronGeometry;\n\n\t// DodecahedronBufferGeometry\n\n\tfunction DodecahedronBufferGeometry( radius, detail ) {\n\n\t\tvar t = ( 1 + Math.sqrt( 5 ) ) / 2;\n\t\tvar r = 1 / t;\n\n\t\tvar vertices = [\n\n\t\t\t// (±1, ±1, ±1)\n\t\t\t- 1, - 1, - 1,\t- 1, - 1, 1,\n\t\t\t- 1, 1, - 1, - 1, 1, 1,\n\t\t\t1, - 1, - 1, 1, - 1, 1,\n\t\t\t1, 1, - 1, 1, 1, 1,\n\n\t\t\t// (0, ±1/φ, ±φ)\n\t\t\t 0, - r, - t, 0, - r, t,\n\t\t\t 0, r, - t, 0, r, t,\n\n\t\t\t// (±1/φ, ±φ, 0)\n\t\t\t- r, - t, 0, - r, t, 0,\n\t\t\t r, - t, 0, r, t, 0,\n\n\t\t\t// (±φ, 0, ±1/φ)\n\t\t\t- t, 0, - r, t, 0, - r,\n\t\t\t- t, 0, r, t, 0, r\n\t\t];\n\n\t\tvar indices = [\n\t\t\t3, 11, 7, \t3, 7, 15, \t3, 15, 13,\n\t\t\t7, 19, 17, \t7, 17, 6, \t7, 6, 15,\n\t\t\t17, 4, 8, \t17, 8, 10, \t17, 10, 6,\n\t\t\t8, 0, 16, \t8, 16, 2, \t8, 2, 10,\n\t\t\t0, 12, 1, \t0, 1, 18, \t0, 18, 16,\n\t\t\t6, 10, 2, \t6, 2, 13, \t6, 13, 15,\n\t\t\t2, 16, 18, \t2, 18, 3, \t2, 3, 13,\n\t\t\t18, 1, 9, \t18, 9, 11, \t18, 11, 3,\n\t\t\t4, 14, 12, \t4, 12, 0, \t4, 0, 8,\n\t\t\t11, 9, 5, \t11, 5, 19, \t11, 19, 7,\n\t\t\t19, 5, 14, \t19, 14, 4, \t19, 4, 17,\n\t\t\t1, 12, 14, \t1, 14, 5, \t1, 5, 9\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'DodecahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tDodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tDodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode / https://github.com/oosmoxiecode\n\t * @author WestLangley / https://github.com/WestLangley\n\t * @author zz85 / https://github.com/zz85\n\t * @author miningold / https://github.com/miningold\n\t * @author jonobr1 / https://github.com/jonobr1\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t */\n\n\t// TubeGeometry\n\n\tfunction TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TubeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpath: path,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradius: radius,\n\t\t\tradialSegments: radialSegments,\n\t\t\tclosed: closed\n\t\t};\n\n\t\tif ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );\n\n\t\tvar bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );\n\n\t\t// expose internals\n\n\t\tthis.tangents = bufferGeometry.tangents;\n\t\tthis.normals = bufferGeometry.normals;\n\t\tthis.binormals = bufferGeometry.binormals;\n\n\t\t// create geometry\n\n\t\tthis.fromBufferGeometry( bufferGeometry );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTubeGeometry.prototype = Object.create( Geometry.prototype );\n\tTubeGeometry.prototype.constructor = TubeGeometry;\n\n\t// TubeBufferGeometry\n\n\tfunction TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TubeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpath: path,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradius: radius,\n\t\t\tradialSegments: radialSegments,\n\t\t\tclosed: closed\n\t\t};\n\n\t\ttubularSegments = tubularSegments || 64;\n\t\tradius = radius || 1;\n\t\tradialSegments = radialSegments || 8;\n\t\tclosed = closed || false;\n\n\t\tvar frames = path.computeFrenetFrames( tubularSegments, closed );\n\n\t\t// expose internals\n\n\t\tthis.tangents = frames.tangents;\n\t\tthis.normals = frames.normals;\n\t\tthis.binormals = frames.binormals;\n\n\t\t// helper variables\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar P = new Vector3();\n\n\t\tvar i, j;\n\n\t\t// buffer\n\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\t\tvar indices = [];\n\n\t\t// create buffer data\n\n\t\tgenerateBufferData();\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\t// functions\n\n\t\tfunction generateBufferData() {\n\n\t\t\tfor ( i = 0; i < tubularSegments; i ++ ) {\n\n\t\t\t\tgenerateSegment( i );\n\n\t\t\t}\n\n\t\t\t// if the geometry is not closed, generate the last row of vertices and normals\n\t\t\t// at the regular position on the given path\n\t\t\t//\n\t\t\t// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)\n\n\t\t\tgenerateSegment( ( closed === false ) ? tubularSegments : 0 );\n\n\t\t\t// uvs are generated in a separate function.\n\t\t\t// this makes it easy compute correct values for closed geometries\n\n\t\t\tgenerateUVs();\n\n\t\t\t// finally create faces\n\n\t\t\tgenerateIndices();\n\n\t\t}\n\n\t\tfunction generateSegment( i ) {\n\n\t\t\t// we use getPointAt to sample evenly distributed points from the given path\n\n\t\t\tP = path.getPointAt( i / tubularSegments, P );\n\n\t\t\t// retrieve corresponding normal and binormal\n\n\t\t\tvar N = frames.normals[ i ];\n\t\t\tvar B = frames.binormals[ i ];\n\n\t\t\t// generate normals and vertices for the current segment\n\n\t\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\n\t\t\t\tvar sin = Math.sin( v );\n\t\t\t\tvar cos = - Math.cos( v );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormal.x = ( cos * N.x + sin * B.x );\n\t\t\t\tnormal.y = ( cos * N.y + sin * B.y );\n\t\t\t\tnormal.z = ( cos * N.z + sin * B.z );\n\t\t\t\tnormal.normalize();\n\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = P.x + radius * normal.x;\n\t\t\t\tvertex.y = P.y + radius * normal.y;\n\t\t\t\tvertex.z = P.z + radius * normal.z;\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateIndices() {\n\n\t\t\tfor ( j = 1; j <= tubularSegments; j ++ ) {\n\n\t\t\t\tfor ( i = 1; i <= radialSegments; i ++ ) {\n\n\t\t\t\t\tvar a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );\n\t\t\t\t\tvar b = ( radialSegments + 1 ) * j + ( i - 1 );\n\t\t\t\t\tvar c = ( radialSegments + 1 ) * j + i;\n\t\t\t\t\tvar d = ( radialSegments + 1 ) * ( j - 1 ) + i;\n\n\t\t\t\t\t// faces\n\n\t\t\t\t\tindices.push( a, b, d );\n\t\t\t\t\tindices.push( b, c, d );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateUVs() {\n\n\t\t\tfor ( i = 0; i <= tubularSegments; i ++ ) {\n\n\t\t\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\t\t\tuv.x = i / tubularSegments;\n\t\t\t\t\tuv.y = j / radialSegments;\n\n\t\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tTubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTubeBufferGeometry.prototype.constructor = TubeBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * based on http://www.blackpawn.com/texts/pqtorus/\n\t */\n\n\t// TorusKnotGeometry\n\n\tfunction TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TorusKnotGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradialSegments: radialSegments,\n\t\t\tp: p,\n\t\t\tq: q\n\t\t};\n\n\t\tif ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );\n\n\t\tthis.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTorusKnotGeometry.prototype = Object.create( Geometry.prototype );\n\tTorusKnotGeometry.prototype.constructor = TorusKnotGeometry;\n\n\t// TorusKnotBufferGeometry\n\n\tfunction TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TorusKnotBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradialSegments: radialSegments,\n\t\t\tp: p,\n\t\t\tq: q\n\t\t};\n\n\t\tradius = radius || 1;\n\t\ttube = tube || 0.4;\n\t\ttubularSegments = Math.floor( tubularSegments ) || 64;\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\tp = p || 2;\n\t\tq = q || 3;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar i, j;\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\n\t\tvar P1 = new Vector3();\n\t\tvar P2 = new Vector3();\n\n\t\tvar B = new Vector3();\n\t\tvar T = new Vector3();\n\t\tvar N = new Vector3();\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( i = 0; i <= tubularSegments; ++ i ) {\n\n\t\t\t// the radian \"u\" is used to calculate the position on the torus curve of the current tubular segement\n\n\t\t\tvar u = i / tubularSegments * p * Math.PI * 2;\n\n\t\t\t// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.\n\t\t\t// these points are used to create a special \"coordinate space\", which is necessary to calculate the correct vertex positions\n\n\t\t\tcalculatePositionOnCurve( u, p, q, radius, P1 );\n\t\t\tcalculatePositionOnCurve( u + 0.01, p, q, radius, P2 );\n\n\t\t\t// calculate orthonormal basis\n\n\t\t\tT.subVectors( P2, P1 );\n\t\t\tN.addVectors( P2, P1 );\n\t\t\tB.crossVectors( T, N );\n\t\t\tN.crossVectors( B, T );\n\n\t\t\t// normalize B, N. T can be ignored, we don't use it\n\n\t\t\tB.normalize();\n\t\t\tN.normalize();\n\n\t\t\tfor ( j = 0; j <= radialSegments; ++ j ) {\n\n\t\t\t\t// now calculate the vertices. they are nothing more than an extrusion of the torus curve.\n\t\t\t\t// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.\n\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\t\t\t\tvar cx = - tube * Math.cos( v );\n\t\t\t\tvar cy = tube * Math.sin( v );\n\n\t\t\t\t// now calculate the final vertex position.\n\t\t\t\t// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve\n\n\t\t\t\tvertex.x = P1.x + ( cx * N.x + cy * B.x );\n\t\t\t\tvertex.y = P1.y + ( cx * N.y + cy * B.y );\n\t\t\t\tvertex.z = P1.z + ( cx * N.z + cy * B.z );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)\n\n\t\t\t\tnormal.subVectors( vertex, P1 ).normalize();\n\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( i / tubularSegments );\n\t\t\t\tuvs.push( j / radialSegments );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( j = 1; j <= tubularSegments; j ++ ) {\n\n\t\t\tfor ( i = 1; i <= radialSegments; i ++ ) {\n\n\t\t\t\t// indices\n\n\t\t\t\tvar a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );\n\t\t\t\tvar b = ( radialSegments + 1 ) * j + ( i - 1 );\n\t\t\t\tvar c = ( radialSegments + 1 ) * j + i;\n\t\t\t\tvar d = ( radialSegments + 1 ) * ( j - 1 ) + i;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\t// this function calculates the current position on the torus curve\n\n\t\tfunction calculatePositionOnCurve( u, p, q, radius, position ) {\n\n\t\t\tvar cu = Math.cos( u );\n\t\t\tvar su = Math.sin( u );\n\t\t\tvar quOverP = q / p * u;\n\t\t\tvar cs = Math.cos( quOverP );\n\n\t\t\tposition.x = radius * ( 2 + cs ) * 0.5 * cu;\n\t\t\tposition.y = radius * ( 2 + cs ) * su * 0.5;\n\t\t\tposition.z = radius * Math.sin( quOverP ) * 0.5;\n\n\t\t}\n\n\t}\n\n\tTorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// TorusGeometry\n\n\tfunction TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TorusGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\tradialSegments: radialSegments,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tarc: arc\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTorusGeometry.prototype = Object.create( Geometry.prototype );\n\tTorusGeometry.prototype.constructor = TorusGeometry;\n\n\t// TorusBufferGeometry\n\n\tfunction TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TorusBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\tradialSegments: radialSegments,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tarc: arc\n\t\t};\n\n\t\tradius = radius || 1;\n\t\ttube = tube || 0.4;\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\ttubularSegments = Math.floor( tubularSegments ) || 6;\n\t\tarc = arc || Math.PI * 2;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar center = new Vector3();\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\n\t\tvar j, i;\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\tfor ( i = 0; i <= tubularSegments; i ++ ) {\n\n\t\t\t\tvar u = i / tubularSegments * arc;\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );\n\t\t\t\tvertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );\n\t\t\t\tvertex.z = tube * Math.sin( v );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tcenter.x = radius * Math.cos( u );\n\t\t\t\tcenter.y = radius * Math.sin( u );\n\t\t\t\tnormal.subVectors( vertex, center ).normalize();\n\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( i / tubularSegments );\n\t\t\t\tuvs.push( j / radialSegments );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( j = 1; j <= radialSegments; j ++ ) {\n\n\t\t\tfor ( i = 1; i <= tubularSegments; i ++ ) {\n\n\t\t\t\t// indices\n\n\t\t\t\tvar a = ( tubularSegments + 1 ) * j + i - 1;\n\t\t\t\tvar b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;\n\t\t\t\tvar c = ( tubularSegments + 1 ) * ( j - 1 ) + i;\n\t\t\t\tvar d = ( tubularSegments + 1 ) * j + i;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tTorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTorusBufferGeometry.prototype.constructor = TorusBufferGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t * Port from https://github.com/mapbox/earcut (v2.1.2)\n\t */\n\n\tvar Earcut = {\n\n\t\ttriangulate: function ( data, holeIndices, dim ) {\n\n\t\t\tdim = dim || 2;\n\n\t\t\tvar hasHoles = holeIndices && holeIndices.length,\n\t\t\t\touterLen = hasHoles ? holeIndices[ 0 ] * dim : data.length,\n\t\t\t\touterNode = linkedList( data, 0, outerLen, dim, true ),\n\t\t\t\ttriangles = [];\n\n\t\t\tif ( ! outerNode ) return triangles;\n\n\t\t\tvar minX, minY, maxX, maxY, x, y, invSize;\n\n\t\t\tif ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );\n\n\t\t\t// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox\n\n\t\t\tif ( data.length > 80 * dim ) {\n\n\t\t\t\tminX = maxX = data[ 0 ];\n\t\t\t\tminY = maxY = data[ 1 ];\n\n\t\t\t\tfor ( var i = dim; i < outerLen; i += dim ) {\n\n\t\t\t\t\tx = data[ i ];\n\t\t\t\t\ty = data[ i + 1 ];\n\t\t\t\t\tif ( x < minX ) minX = x;\n\t\t\t\t\tif ( y < minY ) minY = y;\n\t\t\t\t\tif ( x > maxX ) maxX = x;\n\t\t\t\t\tif ( y > maxY ) maxY = y;\n\n\t\t\t\t}\n\n\t\t\t\t// minX, minY and invSize are later used to transform coords into integers for z-order calculation\n\n\t\t\t\tinvSize = Math.max( maxX - minX, maxY - minY );\n\t\t\t\tinvSize = invSize !== 0 ? 1 / invSize : 0;\n\n\t\t\t}\n\n\t\t\tearcutLinked( outerNode, triangles, dim, minX, minY, invSize );\n\n\t\t\treturn triangles;\n\n\t\t}\n\n\t};\n\n\t// create a circular doubly linked list from polygon points in the specified winding order\n\n\tfunction linkedList( data, start, end, dim, clockwise ) {\n\n\t\tvar i, last;\n\n\t\tif ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {\n\n\t\t\tfor ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );\n\n\t\t} else {\n\n\t\t\tfor ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );\n\n\t\t}\n\n\t\tif ( last && equals( last, last.next ) ) {\n\n\t\t\tremoveNode( last );\n\t\t\tlast = last.next;\n\n\t\t}\n\n\t\treturn last;\n\n\t}\n\n\t// eliminate colinear or duplicate points\n\n\tfunction filterPoints( start, end ) {\n\n\t\tif ( ! start ) return start;\n\t\tif ( ! end ) end = start;\n\n\t\tvar p = start, again;\n\n\t\tdo {\n\n\t\t\tagain = false;\n\n\t\t\tif ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {\n\n\t\t\t\tremoveNode( p );\n\t\t\t\tp = end = p.prev;\n\t\t\t\tif ( p === p.next ) break;\n\t\t\t\tagain = true;\n\n\t\t\t} else {\n\n\t\t\t\tp = p.next;\n\n\t\t\t}\n\n\t\t} while ( again || p !== end );\n\n\t\treturn end;\n\n\t}\n\n\t// main ear slicing loop which triangulates a polygon (given as a linked list)\n\n\tfunction earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {\n\n\t\tif ( ! ear ) return;\n\n\t\t// interlink polygon nodes in z-order\n\n\t\tif ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );\n\n\t\tvar stop = ear, prev, next;\n\n\t\t// iterate through ears, slicing them one by one\n\n\t\twhile ( ear.prev !== ear.next ) {\n\n\t\t\tprev = ear.prev;\n\t\t\tnext = ear.next;\n\n\t\t\tif ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {\n\n\t\t\t\t// cut off the triangle\n\t\t\t\ttriangles.push( prev.i / dim );\n\t\t\t\ttriangles.push( ear.i / dim );\n\t\t\t\ttriangles.push( next.i / dim );\n\n\t\t\t\tremoveNode( ear );\n\n\t\t\t\t// skipping the next vertice leads to less sliver triangles\n\t\t\t\tear = next.next;\n\t\t\t\tstop = next.next;\n\n\t\t\t\tcontinue;\n\n\t\t\t}\n\n\t\t\tear = next;\n\n\t\t\t// if we looped through the whole remaining polygon and can't find any more ears\n\n\t\t\tif ( ear === stop ) {\n\n\t\t\t\t// try filtering points and slicing again\n\n\t\t\t\tif ( ! pass ) {\n\n\t\t\t\t\tearcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );\n\n\t\t\t\t\t// if this didn't work, try curing all small self-intersections locally\n\n\t\t\t\t} else if ( pass === 1 ) {\n\n\t\t\t\t\tear = cureLocalIntersections( ear, triangles, dim );\n\t\t\t\t\tearcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );\n\n\t\t\t\t// as a last resort, try splitting the remaining polygon into two\n\n\t\t\t\t} else if ( pass === 2 ) {\n\n\t\t\t\t\tsplitEarcut( ear, triangles, dim, minX, minY, invSize );\n\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t// check whether a polygon node forms a valid ear with adjacent nodes\n\n\tfunction isEar( ear ) {\n\n\t\tvar a = ear.prev,\n\t\t\tb = ear,\n\t\t\tc = ear.next;\n\n\t\tif ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear\n\n\t\t// now make sure we don't have other points inside the potential ear\n\t\tvar p = ear.next.next;\n\n\t\twhile ( p !== ear.prev ) {\n\n\t\t\tif ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && area( p.prev, p, p.next ) >= 0 ) {\n\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\tfunction isEarHashed( ear, minX, minY, invSize ) {\n\n\t\tvar a = ear.prev,\n\t\t\tb = ear,\n\t\t\tc = ear.next;\n\n\t\tif ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear\n\n\t\t// triangle bbox; min & max are calculated like this for speed\n\n\t\tvar minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),\n\t\t\tminTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),\n\t\t\tmaxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),\n\t\t\tmaxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );\n\n\t\t// z-order range for the current triangle bbox;\n\n\t\tvar minZ = zOrder( minTX, minTY, minX, minY, invSize ),\n\t\t\tmaxZ = zOrder( maxTX, maxTY, minX, minY, invSize );\n\n\t\t// first look for points inside the triangle in increasing z-order\n\n\t\tvar p = ear.nextZ;\n\n\t\twhile ( p && p.z <= maxZ ) {\n\n\t\t\tif ( p !== ear.prev && p !== ear.next &&\n\t\t\t\t\tpointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&\n\t\t\t\t\tarea( p.prev, p, p.next ) >= 0 ) return false;\n\t\t\tp = p.nextZ;\n\n\t\t}\n\n\t\t// then look for points in decreasing z-order\n\n\t\tp = ear.prevZ;\n\n\t\twhile ( p && p.z >= minZ ) {\n\n\t\t\tif ( p !== ear.prev && p !== ear.next &&\n\t\t\t\t\tpointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&\n\t\t\t\t\tarea( p.prev, p, p.next ) >= 0 ) return false;\n\n\t\t\tp = p.prevZ;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\t// go through all polygon nodes and cure small local self-intersections\n\n\tfunction cureLocalIntersections( start, triangles, dim ) {\n\n\t\tvar p = start;\n\n\t\tdo {\n\n\t\t\tvar a = p.prev, b = p.next.next;\n\n\t\t\tif ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {\n\n\t\t\t\ttriangles.push( a.i / dim );\n\t\t\t\ttriangles.push( p.i / dim );\n\t\t\t\ttriangles.push( b.i / dim );\n\n\t\t\t\t// remove two nodes involved\n\n\t\t\t\tremoveNode( p );\n\t\t\t\tremoveNode( p.next );\n\n\t\t\t\tp = start = b;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== start );\n\n\t\treturn p;\n\n\t}\n\n\t// try splitting polygon into two and triangulate them independently\n\n\tfunction splitEarcut( start, triangles, dim, minX, minY, invSize ) {\n\n\t\t// look for a valid diagonal that divides the polygon into two\n\n\t\tvar a = start;\n\n\t\tdo {\n\n\t\t\tvar b = a.next.next;\n\n\t\t\twhile ( b !== a.prev ) {\n\n\t\t\t\tif ( a.i !== b.i && isValidDiagonal( a, b ) ) {\n\n\t\t\t\t\t// split the polygon in two by the diagonal\n\n\t\t\t\t\tvar c = splitPolygon( a, b );\n\n\t\t\t\t\t// filter colinear points around the cuts\n\n\t\t\t\t\ta = filterPoints( a, a.next );\n\t\t\t\t\tc = filterPoints( c, c.next );\n\n\t\t\t\t\t// run earcut on each half\n\n\t\t\t\t\tearcutLinked( a, triangles, dim, minX, minY, invSize );\n\t\t\t\t\tearcutLinked( c, triangles, dim, minX, minY, invSize );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tb = b.next;\n\n\t\t\t}\n\n\t\t\ta = a.next;\n\n\t\t} while ( a !== start );\n\n\t}\n\n\t// link every hole into the outer loop, producing a single-ring polygon without holes\n\n\tfunction eliminateHoles( data, holeIndices, outerNode, dim ) {\n\n\t\tvar queue = [], i, len, start, end, list;\n\n\t\tfor ( i = 0, len = holeIndices.length; i < len; i ++ ) {\n\n\t\t\tstart = holeIndices[ i ] * dim;\n\t\t\tend = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;\n\t\t\tlist = linkedList( data, start, end, dim, false );\n\t\t\tif ( list === list.next ) list.steiner = true;\n\t\t\tqueue.push( getLeftmost( list ) );\n\n\t\t}\n\n\t\tqueue.sort( compareX );\n\n\t\t// process holes from left to right\n\n\t\tfor ( i = 0; i < queue.length; i ++ ) {\n\n\t\t\teliminateHole( queue[ i ], outerNode );\n\t\t\touterNode = filterPoints( outerNode, outerNode.next );\n\n\t\t}\n\n\t\treturn outerNode;\n\n\t}\n\n\tfunction compareX( a, b ) {\n\n\t\treturn a.x - b.x;\n\n\t}\n\n\t// find a bridge between vertices that connects hole with an outer ring and and link it\n\n\tfunction eliminateHole( hole, outerNode ) {\n\n\t\touterNode = findHoleBridge( hole, outerNode );\n\n\t\tif ( outerNode ) {\n\n\t\t\tvar b = splitPolygon( outerNode, hole );\n\n\t\t\tfilterPoints( b, b.next );\n\n\t\t}\n\n\t}\n\n\t// David Eberly's algorithm for finding a bridge between hole and outer polygon\n\n\tfunction findHoleBridge( hole, outerNode ) {\n\n\t\tvar p = outerNode,\n\t\t\thx = hole.x,\n\t\t\thy = hole.y,\n\t\t\tqx = - Infinity,\n\t\t\tm;\n\n\t\t// find a segment intersected by a ray from the hole's leftmost point to the left;\n\t\t// segment's endpoint with lesser x will be potential connection point\n\n\t\tdo {\n\n\t\t\tif ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {\n\n\t\t\t\tvar x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );\n\n\t\t\t\tif ( x <= hx && x > qx ) {\n\n\t\t\t\t\tqx = x;\n\n\t\t\t\t\tif ( x === hx ) {\n\n\t\t\t\t\t\tif ( hy === p.y ) return p;\n\t\t\t\t\t\tif ( hy === p.next.y ) return p.next;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tm = p.x < p.next.x ? p : p.next;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== outerNode );\n\n\t\tif ( ! m ) return null;\n\n\t\tif ( hx === qx ) return m.prev; // hole touches outer segment; pick lower endpoint\n\n\t\t// look for points inside the triangle of hole point, segment intersection and endpoint;\n\t\t// if there are no points found, we have a valid connection;\n\t\t// otherwise choose the point of the minimum angle with the ray as connection point\n\n\t\tvar stop = m,\n\t\t\tmx = m.x,\n\t\t\tmy = m.y,\n\t\t\ttanMin = Infinity,\n\t\t\ttan;\n\n\t\tp = m.next;\n\n\t\twhile ( p !== stop ) {\n\n\t\t\tif ( hx >= p.x && p.x >= mx && hx !== p.x &&\n\t\t\t\t\t\t\tpointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {\n\n\t\t\t\ttan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential\n\n\t\t\t\tif ( ( tan < tanMin || ( tan === tanMin && p.x > m.x ) ) && locallyInside( p, hole ) ) {\n\n\t\t\t\t\tm = p;\n\t\t\t\t\ttanMin = tan;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t}\n\n\t\treturn m;\n\n\t}\n\n\t// interlink polygon nodes in z-order\n\n\tfunction indexCurve( start, minX, minY, invSize ) {\n\n\t\tvar p = start;\n\n\t\tdo {\n\n\t\t\tif ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );\n\t\t\tp.prevZ = p.prev;\n\t\t\tp.nextZ = p.next;\n\t\t\tp = p.next;\n\n\t\t} while ( p !== start );\n\n\t\tp.prevZ.nextZ = null;\n\t\tp.prevZ = null;\n\n\t\tsortLinked( p );\n\n\t}\n\n\t// Simon Tatham's linked list merge sort algorithm\n\t// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html\n\n\tfunction sortLinked( list ) {\n\n\t\tvar i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1;\n\n\t\tdo {\n\n\t\t\tp = list;\n\t\t\tlist = null;\n\t\t\ttail = null;\n\t\t\tnumMerges = 0;\n\n\t\t\twhile ( p ) {\n\n\t\t\t\tnumMerges ++;\n\t\t\t\tq = p;\n\t\t\t\tpSize = 0;\n\n\t\t\t\tfor ( i = 0; i < inSize; i ++ ) {\n\n\t\t\t\t\tpSize ++;\n\t\t\t\t\tq = q.nextZ;\n\t\t\t\t\tif ( ! q ) break;\n\n\t\t\t\t}\n\n\t\t\t\tqSize = inSize;\n\n\t\t\t\twhile ( pSize > 0 || ( qSize > 0 && q ) ) {\n\n\t\t\t\t\tif ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {\n\n\t\t\t\t\t\te = p;\n\t\t\t\t\t\tp = p.nextZ;\n\t\t\t\t\t\tpSize --;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\te = q;\n\t\t\t\t\t\tq = q.nextZ;\n\t\t\t\t\t\tqSize --;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( tail ) tail.nextZ = e;\n\t\t\t\t\telse list = e;\n\n\t\t\t\t\te.prevZ = tail;\n\t\t\t\t\ttail = e;\n\n\t\t\t\t}\n\n\t\t\t\tp = q;\n\n\t\t\t}\n\n\t\t\ttail.nextZ = null;\n\t\t\tinSize *= 2;\n\n\t\t} while ( numMerges > 1 );\n\n\t\treturn list;\n\n\t}\n\n\t// z-order of a point given coords and inverse of the longer side of data bbox\n\n\tfunction zOrder( x, y, minX, minY, invSize ) {\n\n\t\t// coords are transformed into non-negative 15-bit integer range\n\n\t\tx = 32767 * ( x - minX ) * invSize;\n\t\ty = 32767 * ( y - minY ) * invSize;\n\n\t\tx = ( x | ( x << 8 ) ) & 0x00FF00FF;\n\t\tx = ( x | ( x << 4 ) ) & 0x0F0F0F0F;\n\t\tx = ( x | ( x << 2 ) ) & 0x33333333;\n\t\tx = ( x | ( x << 1 ) ) & 0x55555555;\n\n\t\ty = ( y | ( y << 8 ) ) & 0x00FF00FF;\n\t\ty = ( y | ( y << 4 ) ) & 0x0F0F0F0F;\n\t\ty = ( y | ( y << 2 ) ) & 0x33333333;\n\t\ty = ( y | ( y << 1 ) ) & 0x55555555;\n\n\t\treturn x | ( y << 1 );\n\n\t}\n\n\t// find the leftmost node of a polygon ring\n\n\tfunction getLeftmost( start ) {\n\n\t\tvar p = start, leftmost = start;\n\n\t\tdo {\n\n\t\t\tif ( p.x < leftmost.x ) leftmost = p;\n\t\t\tp = p.next;\n\n\t\t} while ( p !== start );\n\n\t\treturn leftmost;\n\n\t}\n\n\t// check if a point lies within a convex triangle\n\n\tfunction pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {\n\n\t\treturn ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&\n\t\t ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&\n\t\t ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;\n\n\t}\n\n\t// check if a diagonal between two polygon nodes is valid (lies in polygon interior)\n\n\tfunction isValidDiagonal( a, b ) {\n\n\t\treturn a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) &&\n\t\t\tlocallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b );\n\n\t}\n\n\t// signed area of a triangle\n\n\tfunction area( p, q, r ) {\n\n\t\treturn ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );\n\n\t}\n\n\t// check if two points are equal\n\n\tfunction equals( p1, p2 ) {\n\n\t\treturn p1.x === p2.x && p1.y === p2.y;\n\n\t}\n\n\t// check if two segments intersect\n\n\tfunction intersects( p1, q1, p2, q2 ) {\n\n\t\tif ( ( equals( p1, q1 ) && equals( p2, q2 ) ) ||\n\t\t\t\t( equals( p1, q2 ) && equals( p2, q1 ) ) ) return true;\n\n\t\treturn area( p1, q1, p2 ) > 0 !== area( p1, q1, q2 ) > 0 &&\n\t\t\t\t\t area( p2, q2, p1 ) > 0 !== area( p2, q2, q1 ) > 0;\n\n\t}\n\n\t// check if a polygon diagonal intersects any polygon segments\n\n\tfunction intersectsPolygon( a, b ) {\n\n\t\tvar p = a;\n\n\t\tdo {\n\n\t\t\tif ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&\n\t\t\t\t\t\t\tintersects( p, p.next, a, b ) ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== a );\n\n\t\treturn false;\n\n\t}\n\n\t// check if a polygon diagonal is locally inside the polygon\n\n\tfunction locallyInside( a, b ) {\n\n\t\treturn area( a.prev, a, a.next ) < 0 ?\n\t\t\tarea( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :\n\t\t\tarea( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;\n\n\t}\n\n\t// check if the middle point of a polygon diagonal is inside the polygon\n\n\tfunction middleInside( a, b ) {\n\n\t\tvar p = a,\n\t\t\tinside = false,\n\t\t\tpx = ( a.x + b.x ) / 2,\n\t\t\tpy = ( a.y + b.y ) / 2;\n\n\t\tdo {\n\n\t\t\tif ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&\n\t\t\t\t\t\t\t( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) {\n\n\t\t\t\tinside = ! inside;\n\n\t\t\t}\n\n\t\t\tp = p.next;\n\n\t\t} while ( p !== a );\n\n\t\treturn inside;\n\n\t}\n\n\t// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;\n\t// if one belongs to the outer ring and another to a hole, it merges it into a single ring\n\n\tfunction splitPolygon( a, b ) {\n\n\t\tvar a2 = new Node( a.i, a.x, a.y ),\n\t\t\tb2 = new Node( b.i, b.x, b.y ),\n\t\t\tan = a.next,\n\t\t\tbp = b.prev;\n\n\t\ta.next = b;\n\t\tb.prev = a;\n\n\t\ta2.next = an;\n\t\tan.prev = a2;\n\n\t\tb2.next = a2;\n\t\ta2.prev = b2;\n\n\t\tbp.next = b2;\n\t\tb2.prev = bp;\n\n\t\treturn b2;\n\n\t}\n\n\t// create a node and optionally link it with previous one (in a circular doubly linked list)\n\n\tfunction insertNode( i, x, y, last ) {\n\n\t\tvar p = new Node( i, x, y );\n\n\t\tif ( ! last ) {\n\n\t\t\tp.prev = p;\n\t\t\tp.next = p;\n\n\t\t} else {\n\n\t\t\tp.next = last.next;\n\t\t\tp.prev = last;\n\t\t\tlast.next.prev = p;\n\t\t\tlast.next = p;\n\n\t\t}\n\n\t\treturn p;\n\n\t}\n\n\tfunction removeNode( p ) {\n\n\t\tp.next.prev = p.prev;\n\t\tp.prev.next = p.next;\n\n\t\tif ( p.prevZ ) p.prevZ.nextZ = p.nextZ;\n\t\tif ( p.nextZ ) p.nextZ.prevZ = p.prevZ;\n\n\t}\n\n\tfunction Node( i, x, y ) {\n\n\t\t// vertice index in coordinates array\n\t\tthis.i = i;\n\n\t\t// vertex coordinates\n\t\tthis.x = x;\n\t\tthis.y = y;\n\n\t\t// previous and next vertice nodes in a polygon ring\n\t\tthis.prev = null;\n\t\tthis.next = null;\n\n\t\t// z-order curve value\n\t\tthis.z = null;\n\n\t\t// previous and next nodes in z-order\n\t\tthis.prevZ = null;\n\t\tthis.nextZ = null;\n\n\t\t// indicates whether this is a steiner point\n\t\tthis.steiner = false;\n\n\t}\n\n\tfunction signedArea( data, start, end, dim ) {\n\n\t\tvar sum = 0;\n\n\t\tfor ( var i = start, j = end - dim; i < end; i += dim ) {\n\n\t\t\tsum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );\n\t\t\tj = i;\n\n\t\t}\n\n\t\treturn sum;\n\n\t}\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t */\n\n\tvar ShapeUtils = {\n\n\t\t// calculate area of the contour polygon\n\n\t\tarea: function ( contour ) {\n\n\t\t\tvar n = contour.length;\n\t\t\tvar a = 0.0;\n\n\t\t\tfor ( var p = n - 1, q = 0; q < n; p = q ++ ) {\n\n\t\t\t\ta += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;\n\n\t\t\t}\n\n\t\t\treturn a * 0.5;\n\n\t\t},\n\n\t\tisClockWise: function ( pts ) {\n\n\t\t\treturn ShapeUtils.area( pts ) < 0;\n\n\t\t},\n\n\t\ttriangulateShape: function ( contour, holes ) {\n\n\t\t\tvar vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]\n\t\t\tvar holeIndices = []; // array of hole indices\n\t\t\tvar faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]\n\n\t\t\tremoveDupEndPts( contour );\n\t\t\taddContour( vertices, contour );\n\n\t\t\t//\n\n\t\t\tvar holeIndex = contour.length;\n\n\t\t\tholes.forEach( removeDupEndPts );\n\n\t\t\tfor ( var i = 0; i < holes.length; i ++ ) {\n\n\t\t\t\tholeIndices.push( holeIndex );\n\t\t\t\tholeIndex += holes[ i ].length;\n\t\t\t\taddContour( vertices, holes[ i ] );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar triangles = Earcut.triangulate( vertices, holeIndices );\n\n\t\t\t//\n\n\t\t\tfor ( var i = 0; i < triangles.length; i += 3 ) {\n\n\t\t\t\tfaces.push( triangles.slice( i, i + 3 ) );\n\n\t\t\t}\n\n\t\t\treturn faces;\n\n\t\t}\n\n\t};\n\n\tfunction removeDupEndPts( points ) {\n\n\t\tvar l = points.length;\n\n\t\tif ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {\n\n\t\t\tpoints.pop();\n\n\t\t}\n\n\t}\n\n\tfunction addContour( vertices, contour ) {\n\n\t\tfor ( var i = 0; i < contour.length; i ++ ) {\n\n\t\t\tvertices.push( contour[ i ].x );\n\t\t\tvertices.push( contour[ i ].y );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t * Creates extruded geometry from a path shape.\n\t *\n\t * parameters = {\n\t *\n\t * curveSegments: , // number of points on the curves\n\t * steps: , // number of points for z-side extrusions / used for subdividing segments of extrude spline too\n\t * depth: , // Depth to extrude the shape\n\t *\n\t * bevelEnabled: , // turn on bevel\n\t * bevelThickness: , // how deep into the original shape bevel goes\n\t * bevelSize: , // how far from shape outline is bevel\n\t * bevelSegments: , // number of bevel layers\n\t *\n\t * extrudePath: // curve to extrude shape along\n\t *\n\t * UVGenerator: // object that provides UV generator functions\n\t *\n\t * }\n\t */\n\n\t// ExtrudeGeometry\n\n\tfunction ExtrudeGeometry( shapes, options ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ExtrudeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\toptions: options\n\t\t};\n\n\t\tthis.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tExtrudeGeometry.prototype = Object.create( Geometry.prototype );\n\tExtrudeGeometry.prototype.constructor = ExtrudeGeometry;\n\n\tExtrudeGeometry.prototype.toJSON = function () {\n\n\t\tvar data = Geometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\t\tvar options = this.parameters.options;\n\n\t\treturn toJSON( shapes, options, data );\n\n\t};\n\n\t// ExtrudeBufferGeometry\n\n\tfunction ExtrudeBufferGeometry( shapes, options ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'ExtrudeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\toptions: options\n\t\t};\n\n\t\tshapes = Array.isArray( shapes ) ? shapes : [ shapes ];\n\n\t\tvar scope = this;\n\n\t\tvar verticesArray = [];\n\t\tvar uvArray = [];\n\n\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\tvar shape = shapes[ i ];\n\t\t\taddShape( shape );\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );\n\n\t\tthis.computeVertexNormals();\n\n\t\t// functions\n\n\t\tfunction addShape( shape ) {\n\n\t\t\tvar placeholder = [];\n\n\t\t\t// options\n\n\t\t\tvar curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;\n\t\t\tvar steps = options.steps !== undefined ? options.steps : 1;\n\t\t\tvar depth = options.depth !== undefined ? options.depth : 100;\n\n\t\t\tvar bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;\n\t\t\tvar bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6;\n\t\t\tvar bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2;\n\t\t\tvar bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;\n\n\t\t\tvar extrudePath = options.extrudePath;\n\n\t\t\tvar uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator;\n\n\t\t\t// deprecated options\n\n\t\t\tif ( options.amount !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' );\n\t\t\t\tdepth = options.amount;\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar extrudePts, extrudeByPath = false;\n\t\t\tvar splineTube, binormal, normal, position2;\n\n\t\t\tif ( extrudePath ) {\n\n\t\t\t\textrudePts = extrudePath.getSpacedPoints( steps );\n\n\t\t\t\textrudeByPath = true;\n\t\t\t\tbevelEnabled = false; // bevels not supported for path extrusion\n\n\t\t\t\t// SETUP TNB variables\n\n\t\t\t\t// TODO1 - have a .isClosed in spline?\n\n\t\t\t\tsplineTube = extrudePath.computeFrenetFrames( steps, false );\n\n\t\t\t\t// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);\n\n\t\t\t\tbinormal = new Vector3();\n\t\t\t\tnormal = new Vector3();\n\t\t\t\tposition2 = new Vector3();\n\n\t\t\t}\n\n\t\t\t// Safeguards if bevels are not enabled\n\n\t\t\tif ( ! bevelEnabled ) {\n\n\t\t\t\tbevelSegments = 0;\n\t\t\t\tbevelThickness = 0;\n\t\t\t\tbevelSize = 0;\n\n\t\t\t}\n\n\t\t\t// Variables initialization\n\n\t\t\tvar ahole, h, hl; // looping of holes\n\n\t\t\tvar shapePoints = shape.extractPoints( curveSegments );\n\n\t\t\tvar vertices = shapePoints.shape;\n\t\t\tvar holes = shapePoints.holes;\n\n\t\t\tvar reverse = ! ShapeUtils.isClockWise( vertices );\n\n\t\t\tif ( reverse ) {\n\n\t\t\t\tvertices = vertices.reverse();\n\n\t\t\t\t// Maybe we should also check if holes are in the opposite direction, just to be safe ...\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\n\t\t\t\t\tif ( ShapeUtils.isClockWise( ahole ) ) {\n\n\t\t\t\t\t\tholes[ h ] = ahole.reverse();\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\tvar faces = ShapeUtils.triangulateShape( vertices, holes );\n\n\t\t\t/* Vertices */\n\n\t\t\tvar contour = vertices; // vertices has all points but contour has only points of circumference\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\n\t\t\t\tvertices = vertices.concat( ahole );\n\n\t\t\t}\n\n\n\t\t\tfunction scalePt2( pt, vec, size ) {\n\n\t\t\t\tif ( ! vec ) console.error( \"THREE.ExtrudeGeometry: vec does not exist\" );\n\n\t\t\t\treturn vec.clone().multiplyScalar( size ).add( pt );\n\n\t\t\t}\n\n\t\t\tvar b, bs, t, z,\n\t\t\t\tvert, vlen = vertices.length,\n\t\t\t\tface, flen = faces.length;\n\n\n\t\t\t// Find directions for point movement\n\n\n\t\t\tfunction getBevelVec( inPt, inPrev, inNext ) {\n\n\t\t\t\t// computes for inPt the corresponding point inPt' on a new contour\n\t\t\t\t// shifted by 1 unit (length of normalized vector) to the left\n\t\t\t\t// if we walk along contour clockwise, this new contour is outside the old one\n\t\t\t\t//\n\t\t\t\t// inPt' is the intersection of the two lines parallel to the two\n\t\t\t\t// adjacent edges of inPt at a distance of 1 unit on the left side.\n\n\t\t\t\tvar v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt\n\n\t\t\t\t// good reading for geometry algorithms (here: line-line intersection)\n\t\t\t\t// http://geomalgorithms.com/a05-_intersect-1.html\n\n\t\t\t\tvar v_prev_x = inPt.x - inPrev.x,\n\t\t\t\t\tv_prev_y = inPt.y - inPrev.y;\n\t\t\t\tvar v_next_x = inNext.x - inPt.x,\n\t\t\t\t\tv_next_y = inNext.y - inPt.y;\n\n\t\t\t\tvar v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );\n\n\t\t\t\t// check for collinear edges\n\t\t\t\tvar collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );\n\n\t\t\t\tif ( Math.abs( collinear0 ) > Number.EPSILON ) {\n\n\t\t\t\t\t// not collinear\n\n\t\t\t\t\t// length of vectors for normalizing\n\n\t\t\t\t\tvar v_prev_len = Math.sqrt( v_prev_lensq );\n\t\t\t\t\tvar v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );\n\n\t\t\t\t\t// shift adjacent points by unit vectors to the left\n\n\t\t\t\t\tvar ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );\n\t\t\t\t\tvar ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );\n\n\t\t\t\t\tvar ptNextShift_x = ( inNext.x - v_next_y / v_next_len );\n\t\t\t\t\tvar ptNextShift_y = ( inNext.y + v_next_x / v_next_len );\n\n\t\t\t\t\t// scaling factor for v_prev to intersection point\n\n\t\t\t\t\tvar sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -\n\t\t\t\t\t\t\t( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /\n\t\t\t\t\t\t( v_prev_x * v_next_y - v_prev_y * v_next_x );\n\n\t\t\t\t\t// vector from inPt to intersection point\n\n\t\t\t\t\tv_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );\n\t\t\t\t\tv_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );\n\n\t\t\t\t\t// Don't normalize!, otherwise sharp corners become ugly\n\t\t\t\t\t// but prevent crazy spikes\n\t\t\t\t\tvar v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );\n\t\t\t\t\tif ( v_trans_lensq <= 2 ) {\n\n\t\t\t\t\t\treturn new Vector2( v_trans_x, v_trans_y );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tshrink_by = Math.sqrt( v_trans_lensq / 2 );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// handle special case of collinear edges\n\n\t\t\t\t\tvar direction_eq = false; // assumes: opposite\n\t\t\t\t\tif ( v_prev_x > Number.EPSILON ) {\n\n\t\t\t\t\t\tif ( v_next_x > Number.EPSILON ) {\n\n\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( v_prev_x < - Number.EPSILON ) {\n\n\t\t\t\t\t\t\tif ( v_next_x < - Number.EPSILON ) {\n\n\t\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tif ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {\n\n\t\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( direction_eq ) {\n\n\t\t\t\t\t\t// console.log(\"Warning: lines are a straight sequence\");\n\t\t\t\t\t\tv_trans_x = - v_prev_y;\n\t\t\t\t\t\tv_trans_y = v_prev_x;\n\t\t\t\t\t\tshrink_by = Math.sqrt( v_prev_lensq );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// console.log(\"Warning: lines are a straight spike\");\n\t\t\t\t\t\tv_trans_x = v_prev_x;\n\t\t\t\t\t\tv_trans_y = v_prev_y;\n\t\t\t\t\t\tshrink_by = Math.sqrt( v_prev_lensq / 2 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );\n\n\t\t\t}\n\n\n\t\t\tvar contourMovements = [];\n\n\t\t\tfor ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {\n\n\t\t\t\tif ( j === il ) j = 0;\n\t\t\t\tif ( k === il ) k = 0;\n\n\t\t\t\t// (j)---(i)---(k)\n\t\t\t\t// console.log('i,j,k', i, j , k)\n\n\t\t\t\tcontourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );\n\n\t\t\t}\n\n\t\t\tvar holesMovements = [],\n\t\t\t\toneHoleMovements, verticesMovements = contourMovements.concat();\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\n\t\t\t\toneHoleMovements = [];\n\n\t\t\t\tfor ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {\n\n\t\t\t\t\tif ( j === il ) j = 0;\n\t\t\t\t\tif ( k === il ) k = 0;\n\n\t\t\t\t\t// (j)---(i)---(k)\n\t\t\t\t\toneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );\n\n\t\t\t\t}\n\n\t\t\t\tholesMovements.push( oneHoleMovements );\n\t\t\t\tverticesMovements = verticesMovements.concat( oneHoleMovements );\n\n\t\t\t}\n\n\n\t\t\t// Loop bevelSegments, 1 for the front, 1 for the back\n\n\t\t\tfor ( b = 0; b < bevelSegments; b ++ ) {\n\n\t\t\t\t//for ( b = bevelSegments; b > 0; b -- ) {\n\n\t\t\t\tt = b / bevelSegments;\n\t\t\t\tz = bevelThickness * Math.cos( t * Math.PI / 2 );\n\t\t\t\tbs = bevelSize * Math.sin( t * Math.PI / 2 );\n\n\t\t\t\t// contract shape\n\n\t\t\t\tfor ( i = 0, il = contour.length; i < il; i ++ ) {\n\n\t\t\t\t\tvert = scalePt2( contour[ i ], contourMovements[ i ], bs );\n\n\t\t\t\t\tv( vert.x, vert.y, - z );\n\n\t\t\t\t}\n\n\t\t\t\t// expand holes\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\t\t\t\t\toneHoleMovements = holesMovements[ h ];\n\n\t\t\t\t\tfor ( i = 0, il = ahole.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );\n\n\t\t\t\t\t\tv( vert.x, vert.y, - z );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tbs = bevelSize;\n\n\t\t\t// Back facing vertices\n\n\t\t\tfor ( i = 0; i < vlen; i ++ ) {\n\n\t\t\t\tvert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];\n\n\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\tv( vert.x, vert.y, 0 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );\n\n\t\t\t\t\tnormal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );\n\t\t\t\t\tbinormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );\n\n\t\t\t\t\tposition2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );\n\n\t\t\t\t\tv( position2.x, position2.y, position2.z );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Add stepped vertices...\n\t\t\t// Including front facing vertices\n\n\t\t\tvar s;\n\n\t\t\tfor ( s = 1; s <= steps; s ++ ) {\n\n\t\t\t\tfor ( i = 0; i < vlen; i ++ ) {\n\n\t\t\t\t\tvert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];\n\n\t\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\t\tv( vert.x, vert.y, depth / steps * s );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );\n\n\t\t\t\t\t\tnormal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );\n\t\t\t\t\t\tbinormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );\n\n\t\t\t\t\t\tposition2.copy( extrudePts[ s ] ).add( normal ).add( binormal );\n\n\t\t\t\t\t\tv( position2.x, position2.y, position2.z );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\t// Add bevel segments planes\n\n\t\t\t//for ( b = 1; b <= bevelSegments; b ++ ) {\n\t\t\tfor ( b = bevelSegments - 1; b >= 0; b -- ) {\n\n\t\t\t\tt = b / bevelSegments;\n\t\t\t\tz = bevelThickness * Math.cos( t * Math.PI / 2 );\n\t\t\t\tbs = bevelSize * Math.sin( t * Math.PI / 2 );\n\n\t\t\t\t// contract shape\n\n\t\t\t\tfor ( i = 0, il = contour.length; i < il; i ++ ) {\n\n\t\t\t\t\tvert = scalePt2( contour[ i ], contourMovements[ i ], bs );\n\t\t\t\t\tv( vert.x, vert.y, depth + z );\n\n\t\t\t\t}\n\n\t\t\t\t// expand holes\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\t\t\t\t\toneHoleMovements = holesMovements[ h ];\n\n\t\t\t\t\tfor ( i = 0, il = ahole.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );\n\n\t\t\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\t\t\tv( vert.x, vert.y, depth + z );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tv( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t/* Faces */\n\n\t\t\t// Top and bottom faces\n\n\t\t\tbuildLidFaces();\n\n\t\t\t// Sides faces\n\n\t\t\tbuildSideFaces();\n\n\n\t\t\t///// Internal functions\n\n\t\t\tfunction buildLidFaces() {\n\n\t\t\t\tvar start = verticesArray.length / 3;\n\n\t\t\t\tif ( bevelEnabled ) {\n\n\t\t\t\t\tvar layer = 0; // steps + 1\n\t\t\t\t\tvar offset = vlen * layer;\n\n\t\t\t\t\t// Bottom faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tlayer = steps + bevelSegments * 2;\n\t\t\t\t\toffset = vlen * layer;\n\n\t\t\t\t\t// Top faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// Bottom faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 2 ], face[ 1 ], face[ 0 ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Top faces\n\n\t\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\t\tf3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tscope.addGroup( start, verticesArray.length / 3 - start, 0 );\n\n\t\t\t}\n\n\t\t\t// Create faces for the z-sides of the shape\n\n\t\t\tfunction buildSideFaces() {\n\n\t\t\t\tvar start = verticesArray.length / 3;\n\t\t\t\tvar layeroffset = 0;\n\t\t\t\tsidewalls( contour, layeroffset );\n\t\t\t\tlayeroffset += contour.length;\n\n\t\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tahole = holes[ h ];\n\t\t\t\t\tsidewalls( ahole, layeroffset );\n\n\t\t\t\t\t//, true\n\t\t\t\t\tlayeroffset += ahole.length;\n\n\t\t\t\t}\n\n\n\t\t\t\tscope.addGroup( start, verticesArray.length / 3 - start, 1 );\n\n\n\t\t\t}\n\n\t\t\tfunction sidewalls( contour, layeroffset ) {\n\n\t\t\t\tvar j, k;\n\t\t\t\ti = contour.length;\n\n\t\t\t\twhile ( -- i >= 0 ) {\n\n\t\t\t\t\tj = i;\n\t\t\t\t\tk = i - 1;\n\t\t\t\t\tif ( k < 0 ) k = contour.length - 1;\n\n\t\t\t\t\t//console.log('b', i,j, i-1, k,vertices.length);\n\n\t\t\t\t\tvar s = 0,\n\t\t\t\t\t\tsl = steps + bevelSegments * 2;\n\n\t\t\t\t\tfor ( s = 0; s < sl; s ++ ) {\n\n\t\t\t\t\t\tvar slen1 = vlen * s;\n\t\t\t\t\t\tvar slen2 = vlen * ( s + 1 );\n\n\t\t\t\t\t\tvar a = layeroffset + j + slen1,\n\t\t\t\t\t\t\tb = layeroffset + k + slen1,\n\t\t\t\t\t\t\tc = layeroffset + k + slen2,\n\t\t\t\t\t\t\td = layeroffset + j + slen2;\n\n\t\t\t\t\t\tf4( a, b, c, d );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction v( x, y, z ) {\n\n\t\t\t\tplaceholder.push( x );\n\t\t\t\tplaceholder.push( y );\n\t\t\t\tplaceholder.push( z );\n\n\t\t\t}\n\n\n\t\t\tfunction f3( a, b, c ) {\n\n\t\t\t\taddVertex( a );\n\t\t\t\taddVertex( b );\n\t\t\t\taddVertex( c );\n\n\t\t\t\tvar nextIndex = verticesArray.length / 3;\n\t\t\t\tvar uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );\n\n\t\t\t\taddUV( uvs[ 0 ] );\n\t\t\t\taddUV( uvs[ 1 ] );\n\t\t\t\taddUV( uvs[ 2 ] );\n\n\t\t\t}\n\n\t\t\tfunction f4( a, b, c, d ) {\n\n\t\t\t\taddVertex( a );\n\t\t\t\taddVertex( b );\n\t\t\t\taddVertex( d );\n\n\t\t\t\taddVertex( b );\n\t\t\t\taddVertex( c );\n\t\t\t\taddVertex( d );\n\n\n\t\t\t\tvar nextIndex = verticesArray.length / 3;\n\t\t\t\tvar uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );\n\n\t\t\t\taddUV( uvs[ 0 ] );\n\t\t\t\taddUV( uvs[ 1 ] );\n\t\t\t\taddUV( uvs[ 3 ] );\n\n\t\t\t\taddUV( uvs[ 1 ] );\n\t\t\t\taddUV( uvs[ 2 ] );\n\t\t\t\taddUV( uvs[ 3 ] );\n\n\t\t\t}\n\n\t\t\tfunction addVertex( index ) {\n\n\t\t\t\tverticesArray.push( placeholder[ index * 3 + 0 ] );\n\t\t\t\tverticesArray.push( placeholder[ index * 3 + 1 ] );\n\t\t\t\tverticesArray.push( placeholder[ index * 3 + 2 ] );\n\n\t\t\t}\n\n\n\t\t\tfunction addUV( vector2 ) {\n\n\t\t\t\tuvArray.push( vector2.x );\n\t\t\t\tuvArray.push( vector2.y );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;\n\n\tExtrudeBufferGeometry.prototype.toJSON = function () {\n\n\t\tvar data = BufferGeometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\t\tvar options = this.parameters.options;\n\n\t\treturn toJSON( shapes, options, data );\n\n\t};\n\n\t//\n\n\tvar WorldUVGenerator = {\n\n\t\tgenerateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {\n\n\t\t\tvar a_x = vertices[ indexA * 3 ];\n\t\t\tvar a_y = vertices[ indexA * 3 + 1 ];\n\t\t\tvar b_x = vertices[ indexB * 3 ];\n\t\t\tvar b_y = vertices[ indexB * 3 + 1 ];\n\t\t\tvar c_x = vertices[ indexC * 3 ];\n\t\t\tvar c_y = vertices[ indexC * 3 + 1 ];\n\n\t\t\treturn [\n\t\t\t\tnew Vector2( a_x, a_y ),\n\t\t\t\tnew Vector2( b_x, b_y ),\n\t\t\t\tnew Vector2( c_x, c_y )\n\t\t\t];\n\n\t\t},\n\n\t\tgenerateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {\n\n\t\t\tvar a_x = vertices[ indexA * 3 ];\n\t\t\tvar a_y = vertices[ indexA * 3 + 1 ];\n\t\t\tvar a_z = vertices[ indexA * 3 + 2 ];\n\t\t\tvar b_x = vertices[ indexB * 3 ];\n\t\t\tvar b_y = vertices[ indexB * 3 + 1 ];\n\t\t\tvar b_z = vertices[ indexB * 3 + 2 ];\n\t\t\tvar c_x = vertices[ indexC * 3 ];\n\t\t\tvar c_y = vertices[ indexC * 3 + 1 ];\n\t\t\tvar c_z = vertices[ indexC * 3 + 2 ];\n\t\t\tvar d_x = vertices[ indexD * 3 ];\n\t\t\tvar d_y = vertices[ indexD * 3 + 1 ];\n\t\t\tvar d_z = vertices[ indexD * 3 + 2 ];\n\n\t\t\tif ( Math.abs( a_y - b_y ) < 0.01 ) {\n\n\t\t\t\treturn [\n\t\t\t\t\tnew Vector2( a_x, 1 - a_z ),\n\t\t\t\t\tnew Vector2( b_x, 1 - b_z ),\n\t\t\t\t\tnew Vector2( c_x, 1 - c_z ),\n\t\t\t\t\tnew Vector2( d_x, 1 - d_z )\n\t\t\t\t];\n\n\t\t\t} else {\n\n\t\t\t\treturn [\n\t\t\t\t\tnew Vector2( a_y, 1 - a_z ),\n\t\t\t\t\tnew Vector2( b_y, 1 - b_z ),\n\t\t\t\t\tnew Vector2( c_y, 1 - c_z ),\n\t\t\t\t\tnew Vector2( d_y, 1 - d_z )\n\t\t\t\t];\n\n\t\t\t}\n\n\t\t}\n\t};\n\n\tfunction toJSON( shapes, options, data ) {\n\n\t\t//\n\n\t\tdata.shapes = [];\n\n\t\tif ( Array.isArray( shapes ) ) {\n\n\t\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\t\tvar shape = shapes[ i ];\n\n\t\t\t\tdata.shapes.push( shape.uuid );\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tdata.shapes.push( shapes.uuid );\n\n\t\t}\n\n\t\t//\n\n\t\tif ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON();\n\n\t\treturn data;\n\n\t}\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * Text = 3D Text\n\t *\n\t * parameters = {\n\t * font: , // font\n\t *\n\t * size: , // size of the text\n\t * height: , // thickness to extrude text\n\t * curveSegments: , // number of points on the curves\n\t *\n\t * bevelEnabled: , // turn on bevel\n\t * bevelThickness: , // how deep into text bevel goes\n\t * bevelSize: // how far from text outline is bevel\n\t * }\n\t */\n\n\t// TextGeometry\n\n\tfunction TextGeometry( text, parameters ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TextGeometry';\n\n\t\tthis.parameters = {\n\t\t\ttext: text,\n\t\t\tparameters: parameters\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTextGeometry.prototype = Object.create( Geometry.prototype );\n\tTextGeometry.prototype.constructor = TextGeometry;\n\n\t// TextBufferGeometry\n\n\tfunction TextBufferGeometry( text, parameters ) {\n\n\t\tparameters = parameters || {};\n\n\t\tvar font = parameters.font;\n\n\t\tif ( ! ( font && font.isFont ) ) {\n\n\t\t\tconsole.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );\n\t\t\treturn new Geometry();\n\n\t\t}\n\n\t\tvar shapes = font.generateShapes( text, parameters.size );\n\n\t\t// translate parameters to ExtrudeGeometry API\n\n\t\tparameters.depth = parameters.height !== undefined ? parameters.height : 50;\n\n\t\t// defaults\n\n\t\tif ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;\n\t\tif ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;\n\t\tif ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;\n\n\t\tExtrudeBufferGeometry.call( this, shapes, parameters );\n\n\t\tthis.type = 'TextBufferGeometry';\n\n\t}\n\n\tTextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );\n\tTextBufferGeometry.prototype.constructor = TextBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// SphereGeometry\n\n\tfunction SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'SphereGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tSphereGeometry.prototype = Object.create( Geometry.prototype );\n\tSphereGeometry.prototype.constructor = SphereGeometry;\n\n\t// SphereBufferGeometry\n\n\tfunction SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'SphereBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tradius = radius || 1;\n\n\t\twidthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );\n\t\theightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );\n\n\t\tphiStart = phiStart !== undefined ? phiStart : 0;\n\t\tphiLength = phiLength !== undefined ? phiLength : Math.PI * 2;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI;\n\n\t\tvar thetaEnd = thetaStart + thetaLength;\n\n\t\tvar ix, iy;\n\n\t\tvar index = 0;\n\t\tvar grid = [];\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( iy = 0; iy <= heightSegments; iy ++ ) {\n\n\t\t\tvar verticesRow = [];\n\n\t\t\tvar v = iy / heightSegments;\n\n\t\t\tfor ( ix = 0; ix <= widthSegments; ix ++ ) {\n\n\t\t\t\tvar u = ix / widthSegments;\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );\n\t\t\t\tvertex.y = radius * Math.cos( thetaStart + v * thetaLength );\n\t\t\t\tvertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormal.set( vertex.x, vertex.y, vertex.z ).normalize();\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( u, 1 - v );\n\n\t\t\t\tverticesRow.push( index ++ );\n\n\t\t\t}\n\n\t\t\tgrid.push( verticesRow );\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( iy = 0; iy < heightSegments; iy ++ ) {\n\n\t\t\tfor ( ix = 0; ix < widthSegments; ix ++ ) {\n\n\t\t\t\tvar a = grid[ iy ][ ix + 1 ];\n\t\t\t\tvar b = grid[ iy ][ ix ];\n\t\t\t\tvar c = grid[ iy + 1 ][ ix ];\n\t\t\t\tvar d = grid[ iy + 1 ][ ix + 1 ];\n\n\t\t\t\tif ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );\n\t\t\t\tif ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tSphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tSphereBufferGeometry.prototype.constructor = SphereBufferGeometry;\n\n\t/**\n\t * @author Kaleb Murphy\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// RingGeometry\n\n\tfunction RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'RingGeometry';\n\n\t\tthis.parameters = {\n\t\t\tinnerRadius: innerRadius,\n\t\t\touterRadius: outerRadius,\n\t\t\tthetaSegments: thetaSegments,\n\t\t\tphiSegments: phiSegments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tRingGeometry.prototype = Object.create( Geometry.prototype );\n\tRingGeometry.prototype.constructor = RingGeometry;\n\n\t// RingBufferGeometry\n\n\tfunction RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'RingBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tinnerRadius: innerRadius,\n\t\t\touterRadius: outerRadius,\n\t\t\tthetaSegments: thetaSegments,\n\t\t\tphiSegments: phiSegments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tinnerRadius = innerRadius || 0.5;\n\t\touterRadius = outerRadius || 1;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\tthetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;\n\t\tphiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// some helper variables\n\n\t\tvar segment;\n\t\tvar radius = innerRadius;\n\t\tvar radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar j, i;\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( j = 0; j <= phiSegments; j ++ ) {\n\n\t\t\tfor ( i = 0; i <= thetaSegments; i ++ ) {\n\n\t\t\t\t// values are generate from the inside of the ring to the outside\n\n\t\t\t\tsegment = thetaStart + i / thetaSegments * thetaLength;\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = radius * Math.cos( segment );\n\t\t\t\tvertex.y = radius * Math.sin( segment );\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormals.push( 0, 0, 1 );\n\n\t\t\t\t// uv\n\n\t\t\t\tuv.x = ( vertex.x / outerRadius + 1 ) / 2;\n\t\t\t\tuv.y = ( vertex.y / outerRadius + 1 ) / 2;\n\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t}\n\n\t\t\t// increase the radius for next row of vertices\n\n\t\t\tradius += radiusStep;\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( j = 0; j < phiSegments; j ++ ) {\n\n\t\t\tvar thetaSegmentLevel = j * ( thetaSegments + 1 );\n\n\t\t\tfor ( i = 0; i < thetaSegments; i ++ ) {\n\n\t\t\t\tsegment = i + thetaSegmentLevel;\n\n\t\t\t\tvar a = segment;\n\t\t\t\tvar b = segment + thetaSegments + 1;\n\t\t\t\tvar c = segment + thetaSegments + 2;\n\t\t\t\tvar d = segment + 1;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tRingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tRingBufferGeometry.prototype.constructor = RingBufferGeometry;\n\n\t/**\n\t * @author astrodud / http://astrodud.isgreat.org/\n\t * @author zz85 / https://github.com/zz85\n\t * @author bhouston / http://clara.io\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// LatheGeometry\n\n\tfunction LatheGeometry( points, segments, phiStart, phiLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'LatheGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpoints: points,\n\t\t\tsegments: segments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tLatheGeometry.prototype = Object.create( Geometry.prototype );\n\tLatheGeometry.prototype.constructor = LatheGeometry;\n\n\t// LatheBufferGeometry\n\n\tfunction LatheBufferGeometry( points, segments, phiStart, phiLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'LatheBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpoints: points,\n\t\t\tsegments: segments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength\n\t\t};\n\n\t\tsegments = Math.floor( segments ) || 12;\n\t\tphiStart = phiStart || 0;\n\t\tphiLength = phiLength || Math.PI * 2;\n\n\t\t// clamp phiLength so it's in range of [ 0, 2PI ]\n\n\t\tphiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );\n\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar base;\n\t\tvar inverseSegments = 1.0 / segments;\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar i, j;\n\n\t\t// generate vertices and uvs\n\n\t\tfor ( i = 0; i <= segments; i ++ ) {\n\n\t\t\tvar phi = phiStart + i * inverseSegments * phiLength;\n\n\t\t\tvar sin = Math.sin( phi );\n\t\t\tvar cos = Math.cos( phi );\n\n\t\t\tfor ( j = 0; j <= ( points.length - 1 ); j ++ ) {\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = points[ j ].x * sin;\n\t\t\t\tvertex.y = points[ j ].y;\n\t\t\t\tvertex.z = points[ j ].x * cos;\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// uv\n\n\t\t\t\tuv.x = i / segments;\n\t\t\t\tuv.y = j / ( points.length - 1 );\n\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\n\t\t\t}\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( i = 0; i < segments; i ++ ) {\n\n\t\t\tfor ( j = 0; j < ( points.length - 1 ); j ++ ) {\n\n\t\t\t\tbase = j + i * points.length;\n\n\t\t\t\tvar a = base;\n\t\t\t\tvar b = base + points.length;\n\t\t\t\tvar c = base + points.length + 1;\n\t\t\t\tvar d = base + 1;\n\n\t\t\t\t// faces\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\t// generate normals\n\n\t\tthis.computeVertexNormals();\n\n\t\t// if the geometry is closed, we need to average the normals along the seam.\n\t\t// because the corresponding vertices are identical (but still have different UVs).\n\n\t\tif ( phiLength === Math.PI * 2 ) {\n\n\t\t\tvar normals = this.attributes.normal.array;\n\t\t\tvar n1 = new Vector3();\n\t\t\tvar n2 = new Vector3();\n\t\t\tvar n = new Vector3();\n\n\t\t\t// this is the buffer offset for the last line of vertices\n\n\t\t\tbase = segments * points.length * 3;\n\n\t\t\tfor ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {\n\n\t\t\t\t// select the normal of the vertex in the first line\n\n\t\t\t\tn1.x = normals[ j + 0 ];\n\t\t\t\tn1.y = normals[ j + 1 ];\n\t\t\t\tn1.z = normals[ j + 2 ];\n\n\t\t\t\t// select the normal of the vertex in the last line\n\n\t\t\t\tn2.x = normals[ base + j + 0 ];\n\t\t\t\tn2.y = normals[ base + j + 1 ];\n\t\t\t\tn2.z = normals[ base + j + 2 ];\n\n\t\t\t\t// average normals\n\n\t\t\t\tn.addVectors( n1, n2 ).normalize();\n\n\t\t\t\t// assign the new values to both normals\n\n\t\t\t\tnormals[ j + 0 ] = normals[ base + j + 0 ] = n.x;\n\t\t\t\tnormals[ j + 1 ] = normals[ base + j + 1 ] = n.y;\n\t\t\t\tnormals[ j + 2 ] = normals[ base + j + 2 ] = n.z;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tLatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tLatheBufferGeometry.prototype.constructor = LatheBufferGeometry;\n\n\t/**\n\t * @author jonobr1 / http://jonobr1.com\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// ShapeGeometry\n\n\tfunction ShapeGeometry( shapes, curveSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ShapeGeometry';\n\n\t\tif ( typeof curveSegments === 'object' ) {\n\n\t\t\tconsole.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );\n\n\t\t\tcurveSegments = curveSegments.curveSegments;\n\n\t\t}\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\tcurveSegments: curveSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tShapeGeometry.prototype = Object.create( Geometry.prototype );\n\tShapeGeometry.prototype.constructor = ShapeGeometry;\n\n\tShapeGeometry.prototype.toJSON = function () {\n\n\t\tvar data = Geometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\n\t\treturn toJSON$1( shapes, data );\n\n\t};\n\n\t// ShapeBufferGeometry\n\n\tfunction ShapeBufferGeometry( shapes, curveSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'ShapeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tshapes: shapes,\n\t\t\tcurveSegments: curveSegments\n\t\t};\n\n\t\tcurveSegments = curveSegments || 12;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar groupStart = 0;\n\t\tvar groupCount = 0;\n\n\t\t// allow single and array values for \"shapes\" parameter\n\n\t\tif ( Array.isArray( shapes ) === false ) {\n\n\t\t\taddShape( shapes );\n\n\t\t} else {\n\n\t\t\tfor ( var i = 0; i < shapes.length; i ++ ) {\n\n\t\t\t\taddShape( shapes[ i ] );\n\n\t\t\t\tthis.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support\n\n\t\t\t\tgroupStart += groupCount;\n\t\t\t\tgroupCount = 0;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\n\t\t// helper functions\n\n\t\tfunction addShape( shape ) {\n\n\t\t\tvar i, l, shapeHole;\n\n\t\t\tvar indexOffset = vertices.length / 3;\n\t\t\tvar points = shape.extractPoints( curveSegments );\n\n\t\t\tvar shapeVertices = points.shape;\n\t\t\tvar shapeHoles = points.holes;\n\n\t\t\t// check direction of vertices\n\n\t\t\tif ( ShapeUtils.isClockWise( shapeVertices ) === false ) {\n\n\t\t\t\tshapeVertices = shapeVertices.reverse();\n\n\t\t\t\t// also check if holes are in the opposite direction\n\n\t\t\t\tfor ( i = 0, l = shapeHoles.length; i < l; i ++ ) {\n\n\t\t\t\t\tshapeHole = shapeHoles[ i ];\n\n\t\t\t\t\tif ( ShapeUtils.isClockWise( shapeHole ) === true ) {\n\n\t\t\t\t\t\tshapeHoles[ i ] = shapeHole.reverse();\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );\n\n\t\t\t// join vertices of inner and outer paths to a single array\n\n\t\t\tfor ( i = 0, l = shapeHoles.length; i < l; i ++ ) {\n\n\t\t\t\tshapeHole = shapeHoles[ i ];\n\t\t\t\tshapeVertices = shapeVertices.concat( shapeHole );\n\n\t\t\t}\n\n\t\t\t// vertices, normals, uvs\n\n\t\t\tfor ( i = 0, l = shapeVertices.length; i < l; i ++ ) {\n\n\t\t\t\tvar vertex = shapeVertices[ i ];\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, 0 );\n\t\t\t\tnormals.push( 0, 0, 1 );\n\t\t\t\tuvs.push( vertex.x, vertex.y ); // world uvs\n\n\t\t\t}\n\n\t\t\t// incides\n\n\t\t\tfor ( i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tvar a = face[ 0 ] + indexOffset;\n\t\t\t\tvar b = face[ 1 ] + indexOffset;\n\t\t\t\tvar c = face[ 2 ] + indexOffset;\n\n\t\t\t\tindices.push( a, b, c );\n\t\t\t\tgroupCount += 3;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;\n\n\tShapeBufferGeometry.prototype.toJSON = function () {\n\n\t\tvar data = BufferGeometry.prototype.toJSON.call( this );\n\n\t\tvar shapes = this.parameters.shapes;\n\n\t\treturn toJSON$1( shapes, data );\n\n\t};\n\n\t//\n\n\tfunction toJSON$1( shapes, data ) {\n\n\t\tdata.shapes = [];\n\n\t\tif ( Array.isArray( shapes ) ) {\n\n\t\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\t\tvar shape = shapes[ i ];\n\n\t\t\t\tdata.shapes.push( shape.uuid );\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tdata.shapes.push( shapes.uuid );\n\n\t\t}\n\n\t\treturn data;\n\n\t}\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction EdgesGeometry( geometry, thresholdAngle ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'EdgesGeometry';\n\n\t\tthis.parameters = {\n\t\t\tthresholdAngle: thresholdAngle\n\t\t};\n\n\t\tthresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;\n\n\t\t// buffer\n\n\t\tvar vertices = [];\n\n\t\t// helper variables\n\n\t\tvar thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );\n\t\tvar edge = [ 0, 0 ], edges = {}, edge1, edge2;\n\t\tvar key, keys = [ 'a', 'b', 'c' ];\n\n\t\t// prepare source geometry\n\n\t\tvar geometry2;\n\n\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\tgeometry2 = new Geometry();\n\t\t\tgeometry2.fromBufferGeometry( geometry );\n\n\t\t} else {\n\n\t\t\tgeometry2 = geometry.clone();\n\n\t\t}\n\n\t\tgeometry2.mergeVertices();\n\t\tgeometry2.computeFaceNormals();\n\n\t\tvar sourceVertices = geometry2.vertices;\n\t\tvar faces = geometry2.faces;\n\n\t\t// now create a data structure where each entry represents an edge with its adjoining faces\n\n\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\tvar face = faces[ i ];\n\n\t\t\tfor ( var j = 0; j < 3; j ++ ) {\n\n\t\t\t\tedge1 = face[ keys[ j ] ];\n\t\t\t\tedge2 = face[ keys[ ( j + 1 ) % 3 ] ];\n\t\t\t\tedge[ 0 ] = Math.min( edge1, edge2 );\n\t\t\t\tedge[ 1 ] = Math.max( edge1, edge2 );\n\n\t\t\t\tkey = edge[ 0 ] + ',' + edge[ 1 ];\n\n\t\t\t\tif ( edges[ key ] === undefined ) {\n\n\t\t\t\t\tedges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };\n\n\t\t\t\t} else {\n\n\t\t\t\t\tedges[ key ].face2 = i;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate vertices\n\n\t\tfor ( key in edges ) {\n\n\t\t\tvar e = edges[ key ];\n\n\t\t\t// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.\n\n\t\t\tif ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {\n\n\t\t\t\tvar vertex = sourceVertices[ e.index1 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\tvertex = sourceVertices[ e.index2 ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\n\t}\n\n\tEdgesGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tEdgesGeometry.prototype.constructor = EdgesGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t// CylinderGeometry\n\n\tfunction CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'CylinderGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradiusTop: radiusTop,\n\t\t\tradiusBottom: radiusBottom,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tCylinderGeometry.prototype = Object.create( Geometry.prototype );\n\tCylinderGeometry.prototype.constructor = CylinderGeometry;\n\n\t// CylinderBufferGeometry\n\n\tfunction CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'CylinderBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradiusTop: radiusTop,\n\t\t\tradiusBottom: radiusBottom,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tvar scope = this;\n\n\t\tradiusTop = radiusTop !== undefined ? radiusTop : 1;\n\t\tradiusBottom = radiusBottom !== undefined ? radiusBottom : 1;\n\t\theight = height || 1;\n\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\theightSegments = Math.floor( heightSegments ) || 1;\n\n\t\topenEnded = openEnded !== undefined ? openEnded : false;\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0.0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar index = 0;\n\t\tvar indexArray = [];\n\t\tvar halfHeight = height / 2;\n\t\tvar groupStart = 0;\n\n\t\t// generate geometry\n\n\t\tgenerateTorso();\n\n\t\tif ( openEnded === false ) {\n\n\t\t\tif ( radiusTop > 0 ) generateCap( true );\n\t\t\tif ( radiusBottom > 0 ) generateCap( false );\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t\tfunction generateTorso() {\n\n\t\t\tvar x, y;\n\t\t\tvar normal = new Vector3();\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tvar groupCount = 0;\n\n\t\t\t// this will be used to calculate the normal\n\t\t\tvar slope = ( radiusBottom - radiusTop ) / height;\n\n\t\t\t// generate vertices, normals and uvs\n\n\t\t\tfor ( y = 0; y <= heightSegments; y ++ ) {\n\n\t\t\t\tvar indexRow = [];\n\n\t\t\t\tvar v = y / heightSegments;\n\n\t\t\t\t// calculate the radius of the current row\n\n\t\t\t\tvar radius = v * ( radiusBottom - radiusTop ) + radiusTop;\n\n\t\t\t\tfor ( x = 0; x <= radialSegments; x ++ ) {\n\n\t\t\t\t\tvar u = x / radialSegments;\n\n\t\t\t\t\tvar theta = u * thetaLength + thetaStart;\n\n\t\t\t\t\tvar sinTheta = Math.sin( theta );\n\t\t\t\t\tvar cosTheta = Math.cos( theta );\n\n\t\t\t\t\t// vertex\n\n\t\t\t\t\tvertex.x = radius * sinTheta;\n\t\t\t\t\tvertex.y = - v * height + halfHeight;\n\t\t\t\t\tvertex.z = radius * cosTheta;\n\t\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\t// normal\n\n\t\t\t\t\tnormal.set( sinTheta, slope, cosTheta ).normalize();\n\t\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t\t// uv\n\n\t\t\t\t\tuvs.push( u, 1 - v );\n\n\t\t\t\t\t// save index of vertex in respective row\n\n\t\t\t\t\tindexRow.push( index ++ );\n\n\t\t\t\t}\n\n\t\t\t\t// now save vertices of the row in our index array\n\n\t\t\t\tindexArray.push( indexRow );\n\n\t\t\t}\n\n\t\t\t// generate indices\n\n\t\t\tfor ( x = 0; x < radialSegments; x ++ ) {\n\n\t\t\t\tfor ( y = 0; y < heightSegments; y ++ ) {\n\n\t\t\t\t\t// we use the index array to access the correct indices\n\n\t\t\t\t\tvar a = indexArray[ y ][ x ];\n\t\t\t\t\tvar b = indexArray[ y + 1 ][ x ];\n\t\t\t\t\tvar c = indexArray[ y + 1 ][ x + 1 ];\n\t\t\t\t\tvar d = indexArray[ y ][ x + 1 ];\n\n\t\t\t\t\t// faces\n\n\t\t\t\t\tindices.push( a, b, d );\n\t\t\t\t\tindices.push( b, c, d );\n\n\t\t\t\t\t// update group counter\n\n\t\t\t\t\tgroupCount += 6;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\n\t\t\tscope.addGroup( groupStart, groupCount, 0 );\n\n\t\t\t// calculate new start value for groups\n\n\t\t\tgroupStart += groupCount;\n\n\t\t}\n\n\t\tfunction generateCap( top ) {\n\n\t\t\tvar x, centerIndexStart, centerIndexEnd;\n\n\t\t\tvar uv = new Vector2();\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tvar groupCount = 0;\n\n\t\t\tvar radius = ( top === true ) ? radiusTop : radiusBottom;\n\t\t\tvar sign = ( top === true ) ? 1 : - 1;\n\n\t\t\t// save the index of the first center vertex\n\t\t\tcenterIndexStart = index;\n\n\t\t\t// first we generate the center vertex data of the cap.\n\t\t\t// because the geometry needs one set of uvs per face,\n\t\t\t// we must generate a center vertex per face/segment\n\n\t\t\tfor ( x = 1; x <= radialSegments; x ++ ) {\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertices.push( 0, halfHeight * sign, 0 );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormals.push( 0, sign, 0 );\n\n\t\t\t\t// uv\n\n\t\t\t\tuvs.push( 0.5, 0.5 );\n\n\t\t\t\t// increase index\n\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t\t// save the index of the last center vertex\n\n\t\t\tcenterIndexEnd = index;\n\n\t\t\t// now we generate the surrounding vertices, normals and uvs\n\n\t\t\tfor ( x = 0; x <= radialSegments; x ++ ) {\n\n\t\t\t\tvar u = x / radialSegments;\n\t\t\t\tvar theta = u * thetaLength + thetaStart;\n\n\t\t\t\tvar cosTheta = Math.cos( theta );\n\t\t\t\tvar sinTheta = Math.sin( theta );\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = radius * sinTheta;\n\t\t\t\tvertex.y = halfHeight * sign;\n\t\t\t\tvertex.z = radius * cosTheta;\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormals.push( 0, sign, 0 );\n\n\t\t\t\t// uv\n\n\t\t\t\tuv.x = ( cosTheta * 0.5 ) + 0.5;\n\t\t\t\tuv.y = ( sinTheta * 0.5 * sign ) + 0.5;\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\t// increase index\n\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t\t// generate indices\n\n\t\t\tfor ( x = 0; x < radialSegments; x ++ ) {\n\n\t\t\t\tvar c = centerIndexStart + x;\n\t\t\t\tvar i = centerIndexEnd + x;\n\n\t\t\t\tif ( top === true ) {\n\n\t\t\t\t\t// face top\n\n\t\t\t\t\tindices.push( i, i + 1, c );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// face bottom\n\n\t\t\t\t\tindices.push( i + 1, i, c );\n\n\t\t\t\t}\n\n\t\t\t\tgroupCount += 3;\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\n\t\t\tscope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );\n\n\t\t\t// calculate new start value for groups\n\n\t\t\tgroupStart += groupCount;\n\n\t\t}\n\n\t}\n\n\tCylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tCylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;\n\n\t/**\n\t * @author abelnation / http://github.com/abelnation\n\t */\n\n\t// ConeGeometry\n\n\tfunction ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tCylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );\n\n\t\tthis.type = 'ConeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t}\n\n\tConeGeometry.prototype = Object.create( CylinderGeometry.prototype );\n\tConeGeometry.prototype.constructor = ConeGeometry;\n\n\t// ConeBufferGeometry\n\n\tfunction ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tCylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );\n\n\t\tthis.type = 'ConeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t}\n\n\tConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );\n\tConeBufferGeometry.prototype.constructor = ConeBufferGeometry;\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t * @author Mugen87 / https://github.com/Mugen87\n\t * @author hughes\n\t */\n\n\t// CircleGeometry\n\n\tfunction CircleGeometry( radius, segments, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'CircleGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tsegments: segments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tCircleGeometry.prototype = Object.create( Geometry.prototype );\n\tCircleGeometry.prototype.constructor = CircleGeometry;\n\n\t// CircleBufferGeometry\n\n\tfunction CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'CircleBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tsegments: segments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tradius = radius || 1;\n\t\tsegments = segments !== undefined ? Math.max( 3, segments ) : 8;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\t// buffers\n\n\t\tvar indices = [];\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\n\t\t// helper variables\n\n\t\tvar i, s;\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\n\t\t// center point\n\n\t\tvertices.push( 0, 0, 0 );\n\t\tnormals.push( 0, 0, 1 );\n\t\tuvs.push( 0.5, 0.5 );\n\n\t\tfor ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {\n\n\t\t\tvar segment = thetaStart + s / segments * thetaLength;\n\n\t\t\t// vertex\n\n\t\t\tvertex.x = radius * Math.cos( segment );\n\t\t\tvertex.y = radius * Math.sin( segment );\n\n\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t// normal\n\n\t\t\tnormals.push( 0, 0, 1 );\n\n\t\t\t// uvs\n\n\t\t\tuv.x = ( vertices[ i ] / radius + 1 ) / 2;\n\t\t\tuv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;\n\n\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t}\n\n\t\t// indices\n\n\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\tindices.push( i, i + 1, 0 );\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tCircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tCircleBufferGeometry.prototype.constructor = CircleBufferGeometry;\n\n\n\n\tvar Geometries = /*#__PURE__*/Object.freeze({\n\t\tWireframeGeometry: WireframeGeometry,\n\t\tParametricGeometry: ParametricGeometry,\n\t\tParametricBufferGeometry: ParametricBufferGeometry,\n\t\tTetrahedronGeometry: TetrahedronGeometry,\n\t\tTetrahedronBufferGeometry: TetrahedronBufferGeometry,\n\t\tOctahedronGeometry: OctahedronGeometry,\n\t\tOctahedronBufferGeometry: OctahedronBufferGeometry,\n\t\tIcosahedronGeometry: IcosahedronGeometry,\n\t\tIcosahedronBufferGeometry: IcosahedronBufferGeometry,\n\t\tDodecahedronGeometry: DodecahedronGeometry,\n\t\tDodecahedronBufferGeometry: DodecahedronBufferGeometry,\n\t\tPolyhedronGeometry: PolyhedronGeometry,\n\t\tPolyhedronBufferGeometry: PolyhedronBufferGeometry,\n\t\tTubeGeometry: TubeGeometry,\n\t\tTubeBufferGeometry: TubeBufferGeometry,\n\t\tTorusKnotGeometry: TorusKnotGeometry,\n\t\tTorusKnotBufferGeometry: TorusKnotBufferGeometry,\n\t\tTorusGeometry: TorusGeometry,\n\t\tTorusBufferGeometry: TorusBufferGeometry,\n\t\tTextGeometry: TextGeometry,\n\t\tTextBufferGeometry: TextBufferGeometry,\n\t\tSphereGeometry: SphereGeometry,\n\t\tSphereBufferGeometry: SphereBufferGeometry,\n\t\tRingGeometry: RingGeometry,\n\t\tRingBufferGeometry: RingBufferGeometry,\n\t\tPlaneGeometry: PlaneGeometry,\n\t\tPlaneBufferGeometry: PlaneBufferGeometry,\n\t\tLatheGeometry: LatheGeometry,\n\t\tLatheBufferGeometry: LatheBufferGeometry,\n\t\tShapeGeometry: ShapeGeometry,\n\t\tShapeBufferGeometry: ShapeBufferGeometry,\n\t\tExtrudeGeometry: ExtrudeGeometry,\n\t\tExtrudeBufferGeometry: ExtrudeBufferGeometry,\n\t\tEdgesGeometry: EdgesGeometry,\n\t\tConeGeometry: ConeGeometry,\n\t\tConeBufferGeometry: ConeBufferGeometry,\n\t\tCylinderGeometry: CylinderGeometry,\n\t\tCylinderBufferGeometry: CylinderBufferGeometry,\n\t\tCircleGeometry: CircleGeometry,\n\t\tCircleBufferGeometry: CircleBufferGeometry,\n\t\tBoxGeometry: BoxGeometry,\n\t\tBoxBufferGeometry: BoxBufferGeometry\n\t});\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * parameters = {\n\t * color: \n\t * }\n\t */\n\n\tfunction ShadowMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'ShadowMaterial';\n\n\t\tthis.color = new Color( 0x000000 );\n\t\tthis.transparent = true;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tShadowMaterial.prototype = Object.create( Material.prototype );\n\tShadowMaterial.prototype.constructor = ShadowMaterial;\n\n\tShadowMaterial.prototype.isShadowMaterial = true;\n\n\tShadowMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction RawShaderMaterial( parameters ) {\n\n\t\tShaderMaterial.call( this, parameters );\n\n\t\tthis.type = 'RawShaderMaterial';\n\n\t}\n\n\tRawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );\n\tRawShaderMaterial.prototype.constructor = RawShaderMaterial;\n\n\tRawShaderMaterial.prototype.isRawShaderMaterial = true;\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * color: ,\n\t * roughness: ,\n\t * metalness: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalMapType: THREE.TangentSpaceNormalMap,\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * roughnessMap: new THREE.Texture( ),\n\t *\n\t * metalnessMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * envMapIntensity: \n\t *\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshStandardMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.defines = { 'STANDARD': '' };\n\n\t\tthis.type = 'MeshStandardMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\t\tthis.roughness = 0.5;\n\t\tthis.metalness = 0.5;\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalMapType = TangentSpaceNormalMap;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.roughnessMap = null;\n\n\t\tthis.metalnessMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.envMapIntensity = 1.0;\n\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshStandardMaterial.prototype = Object.create( Material.prototype );\n\tMeshStandardMaterial.prototype.constructor = MeshStandardMaterial;\n\n\tMeshStandardMaterial.prototype.isMeshStandardMaterial = true;\n\n\tMeshStandardMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.defines = { 'STANDARD': '' };\n\n\t\tthis.color.copy( source.color );\n\t\tthis.roughness = source.roughness;\n\t\tthis.metalness = source.metalness;\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalMapType = source.normalMapType;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.roughnessMap = source.roughnessMap;\n\n\t\tthis.metalnessMap = source.metalnessMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.envMapIntensity = source.envMapIntensity;\n\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * reflectivity: \n\t * }\n\t */\n\n\tfunction MeshPhysicalMaterial( parameters ) {\n\n\t\tMeshStandardMaterial.call( this );\n\n\t\tthis.defines = { 'PHYSICAL': '' };\n\n\t\tthis.type = 'MeshPhysicalMaterial';\n\n\t\tthis.reflectivity = 0.5; // maps to F0 = 0.04\n\n\t\tthis.clearCoat = 0.0;\n\t\tthis.clearCoatRoughness = 0.0;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );\n\tMeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;\n\n\tMeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;\n\n\tMeshPhysicalMaterial.prototype.copy = function ( source ) {\n\n\t\tMeshStandardMaterial.prototype.copy.call( this, source );\n\n\t\tthis.defines = { 'PHYSICAL': '' };\n\n\t\tthis.reflectivity = source.reflectivity;\n\n\t\tthis.clearCoat = source.clearCoat;\n\t\tthis.clearCoatRoughness = source.clearCoatRoughness;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * specular: ,\n\t * shininess: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalMapType: THREE.TangentSpaceNormalMap,\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshPhongMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshPhongMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\t\tthis.specular = new Color( 0x111111 );\n\t\tthis.shininess = 30;\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalMapType = TangentSpaceNormalMap;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshPhongMaterial.prototype = Object.create( Material.prototype );\n\tMeshPhongMaterial.prototype.constructor = MeshPhongMaterial;\n\n\tMeshPhongMaterial.prototype.isMeshPhongMaterial = true;\n\n\tMeshPhongMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\t\tthis.specular.copy( source.specular );\n\t\tthis.shininess = source.shininess;\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalMapType = source.normalMapType;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author takahirox / http://github.com/takahirox\n\t *\n\t * parameters = {\n\t * gradientMap: new THREE.Texture( )\n\t * }\n\t */\n\n\tfunction MeshToonMaterial( parameters ) {\n\n\t\tMeshPhongMaterial.call( this );\n\n\t\tthis.defines = { 'TOON': '' };\n\n\t\tthis.type = 'MeshToonMaterial';\n\n\t\tthis.gradientMap = null;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );\n\tMeshToonMaterial.prototype.constructor = MeshToonMaterial;\n\n\tMeshToonMaterial.prototype.isMeshToonMaterial = true;\n\n\tMeshToonMaterial.prototype.copy = function ( source ) {\n\n\t\tMeshPhongMaterial.prototype.copy.call( this, source );\n\n\t\tthis.gradientMap = source.gradientMap;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * opacity: ,\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalMapType: THREE.TangentSpaceNormalMap,\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: \n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshNormalMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshNormalMaterial';\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalMapType = TangentSpaceNormalMap;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshNormalMaterial.prototype = Object.create( Material.prototype );\n\tMeshNormalMaterial.prototype.constructor = MeshNormalMaterial;\n\n\tMeshNormalMaterial.prototype.isMeshNormalMaterial = true;\n\n\tMeshNormalMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalMapType = source.normalMapType;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshLambertMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshLambertMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshLambertMaterial.prototype = Object.create( Material.prototype );\n\tMeshLambertMaterial.prototype.constructor = MeshLambertMaterial;\n\n\tMeshLambertMaterial.prototype.isMeshLambertMaterial = true;\n\n\tMeshLambertMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * linewidth: ,\n\t *\n\t * scale: ,\n\t * dashSize: ,\n\t * gapSize: \n\t * }\n\t */\n\n\tfunction LineDashedMaterial( parameters ) {\n\n\t\tLineBasicMaterial.call( this );\n\n\t\tthis.type = 'LineDashedMaterial';\n\n\t\tthis.scale = 1;\n\t\tthis.dashSize = 3;\n\t\tthis.gapSize = 1;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tLineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype );\n\tLineDashedMaterial.prototype.constructor = LineDashedMaterial;\n\n\tLineDashedMaterial.prototype.isLineDashedMaterial = true;\n\n\tLineDashedMaterial.prototype.copy = function ( source ) {\n\n\t\tLineBasicMaterial.prototype.copy.call( this, source );\n\n\t\tthis.scale = source.scale;\n\t\tthis.dashSize = source.dashSize;\n\t\tthis.gapSize = source.gapSize;\n\n\t\treturn this;\n\n\t};\n\n\n\n\tvar Materials = /*#__PURE__*/Object.freeze({\n\t\tShadowMaterial: ShadowMaterial,\n\t\tSpriteMaterial: SpriteMaterial,\n\t\tRawShaderMaterial: RawShaderMaterial,\n\t\tShaderMaterial: ShaderMaterial,\n\t\tPointsMaterial: PointsMaterial,\n\t\tMeshPhysicalMaterial: MeshPhysicalMaterial,\n\t\tMeshStandardMaterial: MeshStandardMaterial,\n\t\tMeshPhongMaterial: MeshPhongMaterial,\n\t\tMeshToonMaterial: MeshToonMaterial,\n\t\tMeshNormalMaterial: MeshNormalMaterial,\n\t\tMeshLambertMaterial: MeshLambertMaterial,\n\t\tMeshDepthMaterial: MeshDepthMaterial,\n\t\tMeshDistanceMaterial: MeshDistanceMaterial,\n\t\tMeshBasicMaterial: MeshBasicMaterial,\n\t\tLineDashedMaterial: LineDashedMaterial,\n\t\tLineBasicMaterial: LineBasicMaterial,\n\t\tMaterial: Material\n\t});\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar Cache = {\n\n\t\tenabled: false,\n\n\t\tfiles: {},\n\n\t\tadd: function ( key, file ) {\n\n\t\t\tif ( this.enabled === false ) return;\n\n\t\t\t// console.log( 'THREE.Cache', 'Adding key:', key );\n\n\t\t\tthis.files[ key ] = file;\n\n\t\t},\n\n\t\tget: function ( key ) {\n\n\t\t\tif ( this.enabled === false ) return;\n\n\t\t\t// console.log( 'THREE.Cache', 'Checking key:', key );\n\n\t\t\treturn this.files[ key ];\n\n\t\t},\n\n\t\tremove: function ( key ) {\n\n\t\t\tdelete this.files[ key ];\n\n\t\t},\n\n\t\tclear: function () {\n\n\t\t\tthis.files = {};\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LoadingManager( onLoad, onProgress, onError ) {\n\n\t\tvar scope = this;\n\n\t\tvar isLoading = false;\n\t\tvar itemsLoaded = 0;\n\t\tvar itemsTotal = 0;\n\t\tvar urlModifier = undefined;\n\n\t\tthis.onStart = undefined;\n\t\tthis.onLoad = onLoad;\n\t\tthis.onProgress = onProgress;\n\t\tthis.onError = onError;\n\n\t\tthis.itemStart = function ( url ) {\n\n\t\t\titemsTotal ++;\n\n\t\t\tif ( isLoading === false ) {\n\n\t\t\t\tif ( scope.onStart !== undefined ) {\n\n\t\t\t\t\tscope.onStart( url, itemsLoaded, itemsTotal );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tisLoading = true;\n\n\t\t};\n\n\t\tthis.itemEnd = function ( url ) {\n\n\t\t\titemsLoaded ++;\n\n\t\t\tif ( scope.onProgress !== undefined ) {\n\n\t\t\t\tscope.onProgress( url, itemsLoaded, itemsTotal );\n\n\t\t\t}\n\n\t\t\tif ( itemsLoaded === itemsTotal ) {\n\n\t\t\t\tisLoading = false;\n\n\t\t\t\tif ( scope.onLoad !== undefined ) {\n\n\t\t\t\t\tscope.onLoad();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.itemError = function ( url ) {\n\n\t\t\tif ( scope.onError !== undefined ) {\n\n\t\t\t\tscope.onError( url );\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.resolveURL = function ( url ) {\n\n\t\t\tif ( urlModifier ) {\n\n\t\t\t\treturn urlModifier( url );\n\n\t\t\t}\n\n\t\t\treturn url;\n\n\t\t};\n\n\t\tthis.setURLModifier = function ( transform ) {\n\n\t\t\turlModifier = transform;\n\t\t\treturn this;\n\n\t\t};\n\n\t}\n\n\tvar DefaultLoadingManager = new LoadingManager();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar loading = {};\n\n\tfunction FileLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( FileLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( url === undefined ) url = '';\n\n\t\t\tif ( this.path !== undefined ) url = this.path + url;\n\n\t\t\turl = this.manager.resolveURL( url );\n\n\t\t\tvar scope = this;\n\n\t\t\tvar cached = Cache.get( url );\n\n\t\t\tif ( cached !== undefined ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\tsetTimeout( function () {\n\n\t\t\t\t\tif ( onLoad ) onLoad( cached );\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, 0 );\n\n\t\t\t\treturn cached;\n\n\t\t\t}\n\n\t\t\t// Check if request is duplicate\n\n\t\t\tif ( loading[ url ] !== undefined ) {\n\n\t\t\t\tloading[ url ].push( {\n\n\t\t\t\t\tonLoad: onLoad,\n\t\t\t\t\tonProgress: onProgress,\n\t\t\t\t\tonError: onError\n\n\t\t\t\t} );\n\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t// Check for data: URI\n\t\t\tvar dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;\n\t\t\tvar dataUriRegexResult = url.match( dataUriRegex );\n\n\t\t\t// Safari can not handle Data URIs through XMLHttpRequest so process manually\n\t\t\tif ( dataUriRegexResult ) {\n\n\t\t\t\tvar mimeType = dataUriRegexResult[ 1 ];\n\t\t\t\tvar isBase64 = !! dataUriRegexResult[ 2 ];\n\t\t\t\tvar data = dataUriRegexResult[ 3 ];\n\n\t\t\t\tdata = window.decodeURIComponent( data );\n\n\t\t\t\tif ( isBase64 ) data = window.atob( data );\n\n\t\t\t\ttry {\n\n\t\t\t\t\tvar response;\n\t\t\t\t\tvar responseType = ( this.responseType || '' ).toLowerCase();\n\n\t\t\t\t\tswitch ( responseType ) {\n\n\t\t\t\t\t\tcase 'arraybuffer':\n\t\t\t\t\t\tcase 'blob':\n\n\t\t\t\t\t\t\tvar view = new Uint8Array( data.length );\n\n\t\t\t\t\t\t\tfor ( var i = 0; i < data.length; i ++ ) {\n\n\t\t\t\t\t\t\t\tview[ i ] = data.charCodeAt( i );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( responseType === 'blob' ) {\n\n\t\t\t\t\t\t\t\tresponse = new Blob( [ view.buffer ], { type: mimeType } );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tresponse = view.buffer;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'document':\n\n\t\t\t\t\t\t\tvar parser = new DOMParser();\n\t\t\t\t\t\t\tresponse = parser.parseFromString( data, mimeType );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'json':\n\n\t\t\t\t\t\t\tresponse = JSON.parse( data );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault: // 'text' or other\n\n\t\t\t\t\t\t\tresponse = data;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Wait for next browser tick like standard XMLHttpRequest event dispatching does\n\t\t\t\t\twindow.setTimeout( function () {\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( response );\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t\t}, 0 );\n\n\t\t\t\t} catch ( error ) {\n\n\t\t\t\t\t// Wait for next browser tick like standard XMLHttpRequest event dispatching does\n\t\t\t\t\twindow.setTimeout( function () {\n\n\t\t\t\t\t\tif ( onError ) onError( error );\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t\t}, 0 );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// Initialise array for duplicate requests\n\n\t\t\t\tloading[ url ] = [];\n\n\t\t\t\tloading[ url ].push( {\n\n\t\t\t\t\tonLoad: onLoad,\n\t\t\t\t\tonProgress: onProgress,\n\t\t\t\t\tonError: onError\n\n\t\t\t\t} );\n\n\t\t\t\tvar request = new XMLHttpRequest();\n\n\t\t\t\trequest.open( 'GET', url, true );\n\n\t\t\t\trequest.addEventListener( 'load', function ( event ) {\n\n\t\t\t\t\tvar response = this.response;\n\n\t\t\t\t\tCache.add( url, response );\n\n\t\t\t\t\tvar callbacks = loading[ url ];\n\n\t\t\t\t\tdelete loading[ url ];\n\n\t\t\t\t\tif ( this.status === 200 || this.status === 0 ) {\n\n\t\t\t\t\t\t// Some browsers return HTTP Status 0 when using non-http protocol\n\t\t\t\t\t\t// e.g. 'file://' or 'data://'. Handle as success.\n\n\t\t\t\t\t\tif ( this.status === 0 ) console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );\n\n\t\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\t\tif ( callback.onLoad ) callback.onLoad( response );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\t\tif ( callback.onError ) callback.onError( event );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, false );\n\n\t\t\t\trequest.addEventListener( 'progress', function ( event ) {\n\n\t\t\t\t\tvar callbacks = loading[ url ];\n\n\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\tif ( callback.onProgress ) callback.onProgress( event );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, false );\n\n\t\t\t\trequest.addEventListener( 'error', function ( event ) {\n\n\t\t\t\t\tvar callbacks = loading[ url ];\n\n\t\t\t\t\tdelete loading[ url ];\n\n\t\t\t\t\tfor ( var i = 0, il = callbacks.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvar callback = callbacks[ i ];\n\t\t\t\t\t\tif ( callback.onError ) callback.onError( event );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t}, false );\n\n\t\t\t\tif ( this.responseType !== undefined ) request.responseType = this.responseType;\n\t\t\t\tif ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;\n\n\t\t\t\tif ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );\n\n\t\t\t\tfor ( var header in this.requestHeader ) {\n\n\t\t\t\t\trequest.setRequestHeader( header, this.requestHeader[ header ] );\n\n\t\t\t\t}\n\n\t\t\t\trequest.send( null );\n\n\t\t\t}\n\n\t\t\tscope.manager.itemStart( url );\n\n\t\t\treturn request;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetResponseType: function ( value ) {\n\n\t\t\tthis.responseType = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetWithCredentials: function ( value ) {\n\n\t\t\tthis.withCredentials = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetMimeType: function ( value ) {\n\n\t\t\tthis.mimeType = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetRequestHeader: function ( value ) {\n\n\t\t\tthis.requestHeader = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * Abstract Base class to block based textures loader (dds, pvr, ...)\n\t */\n\n\tfunction CompressedTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\t// override in sub classes\n\t\tthis._parser = null;\n\n\t}\n\n\tObject.assign( CompressedTextureLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar images = [];\n\n\t\t\tvar texture = new CompressedTexture();\n\t\t\ttexture.image = images;\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setPath( this.path );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\n\t\t\tfunction loadTexture( i ) {\n\n\t\t\t\tloader.load( url[ i ], function ( buffer ) {\n\n\t\t\t\t\tvar texDatas = scope._parser( buffer, true );\n\n\t\t\t\t\timages[ i ] = {\n\t\t\t\t\t\twidth: texDatas.width,\n\t\t\t\t\t\theight: texDatas.height,\n\t\t\t\t\t\tformat: texDatas.format,\n\t\t\t\t\t\tmipmaps: texDatas.mipmaps\n\t\t\t\t\t};\n\n\t\t\t\t\tloaded += 1;\n\n\t\t\t\t\tif ( loaded === 6 ) {\n\n\t\t\t\t\t\tif ( texDatas.mipmapCount === 1 )\n\t\t\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t\t\ttexture.format = texDatas.format;\n\t\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, onProgress, onError );\n\n\t\t\t}\n\n\t\t\tif ( Array.isArray( url ) ) {\n\n\t\t\t\tvar loaded = 0;\n\n\t\t\t\tfor ( var i = 0, il = url.length; i < il; ++ i ) {\n\n\t\t\t\t\tloadTexture( i );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// compressed cubemap texture stored in a single DDS file\n\n\t\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\t\tvar texDatas = scope._parser( buffer, true );\n\n\t\t\t\t\tif ( texDatas.isCubemap ) {\n\n\t\t\t\t\t\tvar faces = texDatas.mipmaps.length / texDatas.mipmapCount;\n\n\t\t\t\t\t\tfor ( var f = 0; f < faces; f ++ ) {\n\n\t\t\t\t\t\t\timages[ f ] = { mipmaps: [] };\n\n\t\t\t\t\t\t\tfor ( var i = 0; i < texDatas.mipmapCount; i ++ ) {\n\n\t\t\t\t\t\t\t\timages[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );\n\t\t\t\t\t\t\t\timages[ f ].format = texDatas.format;\n\t\t\t\t\t\t\t\timages[ f ].width = texDatas.width;\n\t\t\t\t\t\t\t\timages[ f ].height = texDatas.height;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttexture.image.width = texDatas.width;\n\t\t\t\t\t\ttexture.image.height = texDatas.height;\n\t\t\t\t\t\ttexture.mipmaps = texDatas.mipmaps;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( texDatas.mipmapCount === 1 ) {\n\n\t\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.format = texDatas.format;\n\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t}, onProgress, onError );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author Nikos M. / https://github.com/foo123/\n\t *\n\t * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)\n\t */\n\n\tfunction DataTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\t// override in sub classes\n\t\tthis._parser = null;\n\n\t}\n\n\tObject.assign( DataTextureLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar texture = new DataTexture();\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\n\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\tvar texData = scope._parser( buffer );\n\n\t\t\t\tif ( ! texData ) return;\n\n\t\t\t\tif ( undefined !== texData.image ) {\n\n\t\t\t\t\ttexture.image = texData.image;\n\n\t\t\t\t} else if ( undefined !== texData.data ) {\n\n\t\t\t\t\ttexture.image.width = texData.width;\n\t\t\t\t\ttexture.image.height = texData.height;\n\t\t\t\t\ttexture.image.data = texData.data;\n\n\t\t\t\t}\n\n\t\t\t\ttexture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;\n\t\t\t\ttexture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;\n\n\t\t\t\ttexture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;\n\t\t\t\ttexture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;\n\n\t\t\t\ttexture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;\n\n\t\t\t\tif ( undefined !== texData.format ) {\n\n\t\t\t\t\ttexture.format = texData.format;\n\n\t\t\t\t}\n\t\t\t\tif ( undefined !== texData.type ) {\n\n\t\t\t\t\ttexture.type = texData.type;\n\n\t\t\t\t}\n\n\t\t\t\tif ( undefined !== texData.mipmaps ) {\n\n\t\t\t\t\ttexture.mipmaps = texData.mipmaps;\n\n\t\t\t\t}\n\n\t\t\t\tif ( 1 === texData.mipmapCount ) {\n\n\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t}\n\n\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\tif ( onLoad ) onLoad( texture, texData );\n\n\t\t\t}, onProgress, onError );\n\n\n\t\t\treturn texture;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction ImageLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( ImageLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( url === undefined ) url = '';\n\n\t\t\tif ( this.path !== undefined ) url = this.path + url;\n\n\t\t\turl = this.manager.resolveURL( url );\n\n\t\t\tvar scope = this;\n\n\t\t\tvar cached = Cache.get( url );\n\n\t\t\tif ( cached !== undefined ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\tsetTimeout( function () {\n\n\t\t\t\t\tif ( onLoad ) onLoad( cached );\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, 0 );\n\n\t\t\t\treturn cached;\n\n\t\t\t}\n\n\t\t\tvar image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );\n\n\t\t\tfunction onImageLoad() {\n\n\t\t\t\timage.removeEventListener( 'load', onImageLoad, false );\n\t\t\t\timage.removeEventListener( 'error', onImageError, false );\n\n\t\t\t\tCache.add( url, this );\n\n\t\t\t\tif ( onLoad ) onLoad( this );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t}\n\n\t\t\tfunction onImageError( event ) {\n\n\t\t\t\timage.removeEventListener( 'load', onImageLoad, false );\n\t\t\t\timage.removeEventListener( 'error', onImageError, false );\n\n\t\t\t\tif ( onError ) onError( event );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t}\n\n\t\t\timage.addEventListener( 'load', onImageLoad, false );\n\t\t\timage.addEventListener( 'error', onImageError, false );\n\n\t\t\tif ( url.substr( 0, 5 ) !== 'data:' ) {\n\n\t\t\t\tif ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;\n\n\t\t\t}\n\n\t\t\tscope.manager.itemStart( url );\n\n\t\t\timage.src = url;\n\n\t\t\treturn image;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction CubeTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( CubeTextureLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( urls, onLoad, onProgress, onError ) {\n\n\t\t\tvar texture = new CubeTexture();\n\n\t\t\tvar loader = new ImageLoader( this.manager );\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\t\t\tloader.setPath( this.path );\n\n\t\t\tvar loaded = 0;\n\n\t\t\tfunction loadTexture( i ) {\n\n\t\t\t\tloader.load( urls[ i ], function ( image ) {\n\n\t\t\t\t\ttexture.images[ i ] = image;\n\n\t\t\t\t\tloaded ++;\n\n\t\t\t\t\tif ( loaded === 6 ) {\n\n\t\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, undefined, onError );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < urls.length; ++ i ) {\n\n\t\t\t\tloadTexture( i );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction TextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( TextureLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar texture = new Texture();\n\n\t\t\tvar loader = new ImageLoader( this.manager );\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\t\t\tloader.setPath( this.path );\n\n\t\t\tloader.load( url, function ( image ) {\n\n\t\t\t\ttexture.image = image;\n\n\t\t\t\t// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.\n\t\t\t\tvar isJPEG = url.search( /\\.(jpg|jpeg)$/ ) > 0 || url.search( /^data\\:image\\/jpeg/ ) === 0;\n\n\t\t\t\ttexture.format = isJPEG ? RGBFormat : RGBAFormat;\n\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\tif ( onLoad !== undefined ) {\n\n\t\t\t\t\tonLoad( texture );\n\n\t\t\t\t}\n\n\t\t\t}, onProgress, onError );\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Extensible curve object\n\t *\n\t * Some common of curve methods:\n\t * .getPoint( t, optionalTarget ), .getTangent( t )\n\t * .getPointAt( u, optionalTarget ), .getTangentAt( u )\n\t * .getPoints(), .getSpacedPoints()\n\t * .getLength()\n\t * .updateArcLengths()\n\t *\n\t * This following curves inherit from THREE.Curve:\n\t *\n\t * -- 2D curves --\n\t * THREE.ArcCurve\n\t * THREE.CubicBezierCurve\n\t * THREE.EllipseCurve\n\t * THREE.LineCurve\n\t * THREE.QuadraticBezierCurve\n\t * THREE.SplineCurve\n\t *\n\t * -- 3D curves --\n\t * THREE.CatmullRomCurve3\n\t * THREE.CubicBezierCurve3\n\t * THREE.LineCurve3\n\t * THREE.QuadraticBezierCurve3\n\t *\n\t * A series of curves can be represented as a THREE.CurvePath.\n\t *\n\t **/\n\n\t/**************************************************************\n\t *\tAbstract Curve base class\n\t **************************************************************/\n\n\tfunction Curve() {\n\n\t\tthis.type = 'Curve';\n\n\t\tthis.arcLengthDivisions = 200;\n\n\t}\n\n\tObject.assign( Curve.prototype, {\n\n\t\t// Virtual base class method to overwrite and implement in subclasses\n\t\t//\t- t [0 .. 1]\n\n\t\tgetPoint: function ( /* t, optionalTarget */ ) {\n\n\t\t\tconsole.warn( 'THREE.Curve: .getPoint() not implemented.' );\n\t\t\treturn null;\n\n\t\t},\n\n\t\t// Get point at relative position in curve according to arc length\n\t\t// - u [0 .. 1]\n\n\t\tgetPointAt: function ( u, optionalTarget ) {\n\n\t\t\tvar t = this.getUtoTmapping( u );\n\t\t\treturn this.getPoint( t, optionalTarget );\n\n\t\t},\n\n\t\t// Get sequence of points using getPoint( t )\n\n\t\tgetPoints: function ( divisions ) {\n\n\t\t\tif ( divisions === undefined ) divisions = 5;\n\n\t\t\tvar points = [];\n\n\t\t\tfor ( var d = 0; d <= divisions; d ++ ) {\n\n\t\t\t\tpoints.push( this.getPoint( d / divisions ) );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\t// Get sequence of points using getPointAt( u )\n\n\t\tgetSpacedPoints: function ( divisions ) {\n\n\t\t\tif ( divisions === undefined ) divisions = 5;\n\n\t\t\tvar points = [];\n\n\t\t\tfor ( var d = 0; d <= divisions; d ++ ) {\n\n\t\t\t\tpoints.push( this.getPointAt( d / divisions ) );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\t// Get total curve arc length\n\n\t\tgetLength: function () {\n\n\t\t\tvar lengths = this.getLengths();\n\t\t\treturn lengths[ lengths.length - 1 ];\n\n\t\t},\n\n\t\t// Get list of cumulative segment lengths\n\n\t\tgetLengths: function ( divisions ) {\n\n\t\t\tif ( divisions === undefined ) divisions = this.arcLengthDivisions;\n\n\t\t\tif ( this.cacheArcLengths &&\n\t\t\t\t( this.cacheArcLengths.length === divisions + 1 ) &&\n\t\t\t\t! this.needsUpdate ) {\n\n\t\t\t\treturn this.cacheArcLengths;\n\n\t\t\t}\n\n\t\t\tthis.needsUpdate = false;\n\n\t\t\tvar cache = [];\n\t\t\tvar current, last = this.getPoint( 0 );\n\t\t\tvar p, sum = 0;\n\n\t\t\tcache.push( 0 );\n\n\t\t\tfor ( p = 1; p <= divisions; p ++ ) {\n\n\t\t\t\tcurrent = this.getPoint( p / divisions );\n\t\t\t\tsum += current.distanceTo( last );\n\t\t\t\tcache.push( sum );\n\t\t\t\tlast = current;\n\n\t\t\t}\n\n\t\t\tthis.cacheArcLengths = cache;\n\n\t\t\treturn cache; // { sums: cache, sum: sum }; Sum is in the last element.\n\n\t\t},\n\n\t\tupdateArcLengths: function () {\n\n\t\t\tthis.needsUpdate = true;\n\t\t\tthis.getLengths();\n\n\t\t},\n\n\t\t// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant\n\n\t\tgetUtoTmapping: function ( u, distance ) {\n\n\t\t\tvar arcLengths = this.getLengths();\n\n\t\t\tvar i = 0, il = arcLengths.length;\n\n\t\t\tvar targetArcLength; // The targeted u distance value to get\n\n\t\t\tif ( distance ) {\n\n\t\t\t\ttargetArcLength = distance;\n\n\t\t\t} else {\n\n\t\t\t\ttargetArcLength = u * arcLengths[ il - 1 ];\n\n\t\t\t}\n\n\t\t\t// binary search for the index with largest value smaller than target u distance\n\n\t\t\tvar low = 0, high = il - 1, comparison;\n\n\t\t\twhile ( low <= high ) {\n\n\t\t\t\ti = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats\n\n\t\t\t\tcomparison = arcLengths[ i ] - targetArcLength;\n\n\t\t\t\tif ( comparison < 0 ) {\n\n\t\t\t\t\tlow = i + 1;\n\n\t\t\t\t} else if ( comparison > 0 ) {\n\n\t\t\t\t\thigh = i - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\thigh = i;\n\t\t\t\t\tbreak;\n\n\t\t\t\t\t// DONE\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\ti = high;\n\n\t\t\tif ( arcLengths[ i ] === targetArcLength ) {\n\n\t\t\t\treturn i / ( il - 1 );\n\n\t\t\t}\n\n\t\t\t// we could get finer grain at lengths, or use simple interpolation between two points\n\n\t\t\tvar lengthBefore = arcLengths[ i ];\n\t\t\tvar lengthAfter = arcLengths[ i + 1 ];\n\n\t\t\tvar segmentLength = lengthAfter - lengthBefore;\n\n\t\t\t// determine where we are between the 'before' and 'after' points\n\n\t\t\tvar segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;\n\n\t\t\t// add that fractional amount to t\n\n\t\t\tvar t = ( i + segmentFraction ) / ( il - 1 );\n\n\t\t\treturn t;\n\n\t\t},\n\n\t\t// Returns a unit vector tangent at t\n\t\t// In case any sub curve does not implement its tangent derivation,\n\t\t// 2 points a small delta apart will be used to find its gradient\n\t\t// which seems to give a reasonable approximation\n\n\t\tgetTangent: function ( t ) {\n\n\t\t\tvar delta = 0.0001;\n\t\t\tvar t1 = t - delta;\n\t\t\tvar t2 = t + delta;\n\n\t\t\t// Capping in case of danger\n\n\t\t\tif ( t1 < 0 ) t1 = 0;\n\t\t\tif ( t2 > 1 ) t2 = 1;\n\n\t\t\tvar pt1 = this.getPoint( t1 );\n\t\t\tvar pt2 = this.getPoint( t2 );\n\n\t\t\tvar vec = pt2.clone().sub( pt1 );\n\t\t\treturn vec.normalize();\n\n\t\t},\n\n\t\tgetTangentAt: function ( u ) {\n\n\t\t\tvar t = this.getUtoTmapping( u );\n\t\t\treturn this.getTangent( t );\n\n\t\t},\n\n\t\tcomputeFrenetFrames: function ( segments, closed ) {\n\n\t\t\t// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf\n\n\t\t\tvar normal = new Vector3();\n\n\t\t\tvar tangents = [];\n\t\t\tvar normals = [];\n\t\t\tvar binormals = [];\n\n\t\t\tvar vec = new Vector3();\n\t\t\tvar mat = new Matrix4();\n\n\t\t\tvar i, u, theta;\n\n\t\t\t// compute the tangent vectors for each segment on the curve\n\n\t\t\tfor ( i = 0; i <= segments; i ++ ) {\n\n\t\t\t\tu = i / segments;\n\n\t\t\t\ttangents[ i ] = this.getTangentAt( u );\n\t\t\t\ttangents[ i ].normalize();\n\n\t\t\t}\n\n\t\t\t// select an initial normal vector perpendicular to the first tangent vector,\n\t\t\t// and in the direction of the minimum tangent xyz component\n\n\t\t\tnormals[ 0 ] = new Vector3();\n\t\t\tbinormals[ 0 ] = new Vector3();\n\t\t\tvar min = Number.MAX_VALUE;\n\t\t\tvar tx = Math.abs( tangents[ 0 ].x );\n\t\t\tvar ty = Math.abs( tangents[ 0 ].y );\n\t\t\tvar tz = Math.abs( tangents[ 0 ].z );\n\n\t\t\tif ( tx <= min ) {\n\n\t\t\t\tmin = tx;\n\t\t\t\tnormal.set( 1, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( ty <= min ) {\n\n\t\t\t\tmin = ty;\n\t\t\t\tnormal.set( 0, 1, 0 );\n\n\t\t\t}\n\n\t\t\tif ( tz <= min ) {\n\n\t\t\t\tnormal.set( 0, 0, 1 );\n\n\t\t\t}\n\n\t\t\tvec.crossVectors( tangents[ 0 ], normal ).normalize();\n\n\t\t\tnormals[ 0 ].crossVectors( tangents[ 0 ], vec );\n\t\t\tbinormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );\n\n\n\t\t\t// compute the slowly-varying normal and binormal vectors for each segment on the curve\n\n\t\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\t\tnormals[ i ] = normals[ i - 1 ].clone();\n\n\t\t\t\tbinormals[ i ] = binormals[ i - 1 ].clone();\n\n\t\t\t\tvec.crossVectors( tangents[ i - 1 ], tangents[ i ] );\n\n\t\t\t\tif ( vec.length() > Number.EPSILON ) {\n\n\t\t\t\t\tvec.normalize();\n\n\t\t\t\t\ttheta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors\n\n\t\t\t\t\tnormals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );\n\n\t\t\t\t}\n\n\t\t\t\tbinormals[ i ].crossVectors( tangents[ i ], normals[ i ] );\n\n\t\t\t}\n\n\t\t\t// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same\n\n\t\t\tif ( closed === true ) {\n\n\t\t\t\ttheta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );\n\t\t\t\ttheta /= segments;\n\n\t\t\t\tif ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {\n\n\t\t\t\t\ttheta = - theta;\n\n\t\t\t\t}\n\n\t\t\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\t\t\t// twist a little...\n\t\t\t\t\tnormals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );\n\t\t\t\t\tbinormals[ i ].crossVectors( tangents[ i ], normals[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\ttangents: tangents,\n\t\t\t\tnormals: normals,\n\t\t\t\tbinormals: binormals\n\t\t\t};\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.arcLengthDivisions = source.arcLengthDivisions;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.5,\n\t\t\t\t\ttype: 'Curve',\n\t\t\t\t\tgenerator: 'Curve.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\tdata.arcLengthDivisions = this.arcLengthDivisions;\n\t\t\tdata.type = this.type;\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tthis.arcLengthDivisions = json.arcLengthDivisions;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\tfunction EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'EllipseCurve';\n\n\t\tthis.aX = aX || 0;\n\t\tthis.aY = aY || 0;\n\n\t\tthis.xRadius = xRadius || 1;\n\t\tthis.yRadius = yRadius || 1;\n\n\t\tthis.aStartAngle = aStartAngle || 0;\n\t\tthis.aEndAngle = aEndAngle || 2 * Math.PI;\n\n\t\tthis.aClockwise = aClockwise || false;\n\n\t\tthis.aRotation = aRotation || 0;\n\n\t}\n\n\tEllipseCurve.prototype = Object.create( Curve.prototype );\n\tEllipseCurve.prototype.constructor = EllipseCurve;\n\n\tEllipseCurve.prototype.isEllipseCurve = true;\n\n\tEllipseCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar twoPi = Math.PI * 2;\n\t\tvar deltaAngle = this.aEndAngle - this.aStartAngle;\n\t\tvar samePoints = Math.abs( deltaAngle ) < Number.EPSILON;\n\n\t\t// ensures that deltaAngle is 0 .. 2 PI\n\t\twhile ( deltaAngle < 0 ) deltaAngle += twoPi;\n\t\twhile ( deltaAngle > twoPi ) deltaAngle -= twoPi;\n\n\t\tif ( deltaAngle < Number.EPSILON ) {\n\n\t\t\tif ( samePoints ) {\n\n\t\t\t\tdeltaAngle = 0;\n\n\t\t\t} else {\n\n\t\t\t\tdeltaAngle = twoPi;\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( this.aClockwise === true && ! samePoints ) {\n\n\t\t\tif ( deltaAngle === twoPi ) {\n\n\t\t\t\tdeltaAngle = - twoPi;\n\n\t\t\t} else {\n\n\t\t\t\tdeltaAngle = deltaAngle - twoPi;\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar angle = this.aStartAngle + t * deltaAngle;\n\t\tvar x = this.aX + this.xRadius * Math.cos( angle );\n\t\tvar y = this.aY + this.yRadius * Math.sin( angle );\n\n\t\tif ( this.aRotation !== 0 ) {\n\n\t\t\tvar cos = Math.cos( this.aRotation );\n\t\t\tvar sin = Math.sin( this.aRotation );\n\n\t\t\tvar tx = x - this.aX;\n\t\t\tvar ty = y - this.aY;\n\n\t\t\t// Rotate the point about the center of the ellipse.\n\t\t\tx = tx * cos - ty * sin + this.aX;\n\t\t\ty = tx * sin + ty * cos + this.aY;\n\n\t\t}\n\n\t\treturn point.set( x, y );\n\n\t};\n\n\tEllipseCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.aX = source.aX;\n\t\tthis.aY = source.aY;\n\n\t\tthis.xRadius = source.xRadius;\n\t\tthis.yRadius = source.yRadius;\n\n\t\tthis.aStartAngle = source.aStartAngle;\n\t\tthis.aEndAngle = source.aEndAngle;\n\n\t\tthis.aClockwise = source.aClockwise;\n\n\t\tthis.aRotation = source.aRotation;\n\n\t\treturn this;\n\n\t};\n\n\n\tEllipseCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.aX = this.aX;\n\t\tdata.aY = this.aY;\n\n\t\tdata.xRadius = this.xRadius;\n\t\tdata.yRadius = this.yRadius;\n\n\t\tdata.aStartAngle = this.aStartAngle;\n\t\tdata.aEndAngle = this.aEndAngle;\n\n\t\tdata.aClockwise = this.aClockwise;\n\n\t\tdata.aRotation = this.aRotation;\n\n\t\treturn data;\n\n\t};\n\n\tEllipseCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.aX = json.aX;\n\t\tthis.aY = json.aY;\n\n\t\tthis.xRadius = json.xRadius;\n\t\tthis.yRadius = json.yRadius;\n\n\t\tthis.aStartAngle = json.aStartAngle;\n\t\tthis.aEndAngle = json.aEndAngle;\n\n\t\tthis.aClockwise = json.aClockwise;\n\n\t\tthis.aRotation = json.aRotation;\n\n\t\treturn this;\n\n\t};\n\n\tfunction ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\tEllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );\n\n\t\tthis.type = 'ArcCurve';\n\n\t}\n\n\tArcCurve.prototype = Object.create( EllipseCurve.prototype );\n\tArcCurve.prototype.constructor = ArcCurve;\n\n\tArcCurve.prototype.isArcCurve = true;\n\n\t/**\n\t * @author zz85 https://github.com/zz85\n\t *\n\t * Centripetal CatmullRom Curve - which is useful for avoiding\n\t * cusps and self-intersections in non-uniform catmull rom curves.\n\t * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf\n\t *\n\t * curve.type accepts centripetal(default), chordal and catmullrom\n\t * curve.tension is used for catmullrom which defaults to 0.5\n\t */\n\n\n\t/*\n\tBased on an optimized c++ solution in\n\t - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/\n\t - http://ideone.com/NoEbVM\n\n\tThis CubicPoly class could be used for reusing some variables and calculations,\n\tbut for three.js curve use, it could be possible inlined and flatten into a single function call\n\twhich can be placed in CurveUtils.\n\t*/\n\n\tfunction CubicPoly() {\n\n\t\tvar c0 = 0, c1 = 0, c2 = 0, c3 = 0;\n\n\t\t/*\n\t\t * Compute coefficients for a cubic polynomial\n\t\t * p(s) = c0 + c1*s + c2*s^2 + c3*s^3\n\t\t * such that\n\t\t * p(0) = x0, p(1) = x1\n\t\t * and\n\t\t * p'(0) = t0, p'(1) = t1.\n\t\t */\n\t\tfunction init( x0, x1, t0, t1 ) {\n\n\t\t\tc0 = x0;\n\t\t\tc1 = t0;\n\t\t\tc2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;\n\t\t\tc3 = 2 * x0 - 2 * x1 + t0 + t1;\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tinitCatmullRom: function ( x0, x1, x2, x3, tension ) {\n\n\t\t\t\tinit( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );\n\n\t\t\t},\n\n\t\t\tinitNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {\n\n\t\t\t\t// compute tangents when parameterized in [t1,t2]\n\t\t\t\tvar t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;\n\t\t\t\tvar t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;\n\n\t\t\t\t// rescale tangents for parametrization in [0,1]\n\t\t\t\tt1 *= dt1;\n\t\t\t\tt2 *= dt1;\n\n\t\t\t\tinit( x1, x2, t1, t2 );\n\n\t\t\t},\n\n\t\t\tcalc: function ( t ) {\n\n\t\t\t\tvar t2 = t * t;\n\t\t\t\tvar t3 = t2 * t;\n\t\t\t\treturn c0 + c1 * t + c2 * t2 + c3 * t3;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t//\n\n\tvar tmp = new Vector3();\n\tvar px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly();\n\n\tfunction CatmullRomCurve3( points, closed, curveType, tension ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CatmullRomCurve3';\n\n\t\tthis.points = points || [];\n\t\tthis.closed = closed || false;\n\t\tthis.curveType = curveType || 'centripetal';\n\t\tthis.tension = tension || 0.5;\n\n\t}\n\n\tCatmullRomCurve3.prototype = Object.create( Curve.prototype );\n\tCatmullRomCurve3.prototype.constructor = CatmullRomCurve3;\n\n\tCatmullRomCurve3.prototype.isCatmullRomCurve3 = true;\n\n\tCatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tvar points = this.points;\n\t\tvar l = points.length;\n\n\t\tvar p = ( l - ( this.closed ? 0 : 1 ) ) * t;\n\t\tvar intPoint = Math.floor( p );\n\t\tvar weight = p - intPoint;\n\n\t\tif ( this.closed ) {\n\n\t\t\tintPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l;\n\n\t\t} else if ( weight === 0 && intPoint === l - 1 ) {\n\n\t\t\tintPoint = l - 2;\n\t\t\tweight = 1;\n\n\t\t}\n\n\t\tvar p0, p1, p2, p3; // 4 points\n\n\t\tif ( this.closed || intPoint > 0 ) {\n\n\t\t\tp0 = points[ ( intPoint - 1 ) % l ];\n\n\t\t} else {\n\n\t\t\t// extrapolate first point\n\t\t\ttmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );\n\t\t\tp0 = tmp;\n\n\t\t}\n\n\t\tp1 = points[ intPoint % l ];\n\t\tp2 = points[ ( intPoint + 1 ) % l ];\n\n\t\tif ( this.closed || intPoint + 2 < l ) {\n\n\t\t\tp3 = points[ ( intPoint + 2 ) % l ];\n\n\t\t} else {\n\n\t\t\t// extrapolate last point\n\t\t\ttmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );\n\t\t\tp3 = tmp;\n\n\t\t}\n\n\t\tif ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {\n\n\t\t\t// init Centripetal / Chordal Catmull-Rom\n\t\t\tvar pow = this.curveType === 'chordal' ? 0.5 : 0.25;\n\t\t\tvar dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );\n\t\t\tvar dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );\n\t\t\tvar dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );\n\n\t\t\t// safety check for repeated points\n\t\t\tif ( dt1 < 1e-4 ) dt1 = 1.0;\n\t\t\tif ( dt0 < 1e-4 ) dt0 = dt1;\n\t\t\tif ( dt2 < 1e-4 ) dt2 = dt1;\n\n\t\t\tpx.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );\n\t\t\tpy.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );\n\t\t\tpz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );\n\n\t\t} else if ( this.curveType === 'catmullrom' ) {\n\n\t\t\tpx.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );\n\t\t\tpy.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );\n\t\t\tpz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );\n\n\t\t}\n\n\t\tpoint.set(\n\t\t\tpx.calc( weight ),\n\t\t\tpy.calc( weight ),\n\t\t\tpz.calc( weight )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tCatmullRomCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = source.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = source.points[ i ];\n\n\t\t\tthis.points.push( point.clone() );\n\n\t\t}\n\n\t\tthis.closed = source.closed;\n\t\tthis.curveType = source.curveType;\n\t\tthis.tension = source.tension;\n\n\t\treturn this;\n\n\t};\n\n\tCatmullRomCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.points = [];\n\n\t\tfor ( var i = 0, l = this.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = this.points[ i ];\n\t\t\tdata.points.push( point.toArray() );\n\n\t\t}\n\n\t\tdata.closed = this.closed;\n\t\tdata.curveType = this.curveType;\n\t\tdata.tension = this.tension;\n\n\t\treturn data;\n\n\t};\n\n\tCatmullRomCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = json.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = json.points[ i ];\n\t\t\tthis.points.push( new Vector3().fromArray( point ) );\n\n\t\t}\n\n\t\tthis.closed = json.closed;\n\t\tthis.curveType = json.curveType;\n\t\tthis.tension = json.tension;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t * Bezier Curves formulas obtained from\n\t * http://en.wikipedia.org/wiki/Bézier_curve\n\t */\n\n\tfunction CatmullRom( t, p0, p1, p2, p3 ) {\n\n\t\tvar v0 = ( p2 - p0 ) * 0.5;\n\t\tvar v1 = ( p3 - p1 ) * 0.5;\n\t\tvar t2 = t * t;\n\t\tvar t3 = t * t2;\n\t\treturn ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;\n\n\t}\n\n\t//\n\n\tfunction QuadraticBezierP0( t, p ) {\n\n\t\tvar k = 1 - t;\n\t\treturn k * k * p;\n\n\t}\n\n\tfunction QuadraticBezierP1( t, p ) {\n\n\t\treturn 2 * ( 1 - t ) * t * p;\n\n\t}\n\n\tfunction QuadraticBezierP2( t, p ) {\n\n\t\treturn t * t * p;\n\n\t}\n\n\tfunction QuadraticBezier( t, p0, p1, p2 ) {\n\n\t\treturn QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +\n\t\t\tQuadraticBezierP2( t, p2 );\n\n\t}\n\n\t//\n\n\tfunction CubicBezierP0( t, p ) {\n\n\t\tvar k = 1 - t;\n\t\treturn k * k * k * p;\n\n\t}\n\n\tfunction CubicBezierP1( t, p ) {\n\n\t\tvar k = 1 - t;\n\t\treturn 3 * k * k * t * p;\n\n\t}\n\n\tfunction CubicBezierP2( t, p ) {\n\n\t\treturn 3 * ( 1 - t ) * t * t * p;\n\n\t}\n\n\tfunction CubicBezierP3( t, p ) {\n\n\t\treturn t * t * t * p;\n\n\t}\n\n\tfunction CubicBezier( t, p0, p1, p2, p3 ) {\n\n\t\treturn CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +\n\t\t\tCubicBezierP3( t, p3 );\n\n\t}\n\n\tfunction CubicBezierCurve( v0, v1, v2, v3 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CubicBezierCurve';\n\n\t\tthis.v0 = v0 || new Vector2();\n\t\tthis.v1 = v1 || new Vector2();\n\t\tthis.v2 = v2 || new Vector2();\n\t\tthis.v3 = v3 || new Vector2();\n\n\t}\n\n\tCubicBezierCurve.prototype = Object.create( Curve.prototype );\n\tCubicBezierCurve.prototype.constructor = CubicBezierCurve;\n\n\tCubicBezierCurve.prototype.isCubicBezierCurve = true;\n\n\tCubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;\n\n\t\tpoint.set(\n\t\t\tCubicBezier( t, v0.x, v1.x, v2.x, v3.x ),\n\t\t\tCubicBezier( t, v0.y, v1.y, v2.y, v3.y )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tCubicBezierCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\t\tthis.v3.copy( source.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tCubicBezierCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\t\tdata.v3 = this.v3.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tCubicBezierCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\t\tthis.v3.fromArray( json.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction CubicBezierCurve3( v0, v1, v2, v3 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CubicBezierCurve3';\n\n\t\tthis.v0 = v0 || new Vector3();\n\t\tthis.v1 = v1 || new Vector3();\n\t\tthis.v2 = v2 || new Vector3();\n\t\tthis.v3 = v3 || new Vector3();\n\n\t}\n\n\tCubicBezierCurve3.prototype = Object.create( Curve.prototype );\n\tCubicBezierCurve3.prototype.constructor = CubicBezierCurve3;\n\n\tCubicBezierCurve3.prototype.isCubicBezierCurve3 = true;\n\n\tCubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;\n\n\t\tpoint.set(\n\t\t\tCubicBezier( t, v0.x, v1.x, v2.x, v3.x ),\n\t\t\tCubicBezier( t, v0.y, v1.y, v2.y, v3.y ),\n\t\t\tCubicBezier( t, v0.z, v1.z, v2.z, v3.z )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tCubicBezierCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\t\tthis.v3.copy( source.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tCubicBezierCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\t\tdata.v3 = this.v3.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tCubicBezierCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\t\tthis.v3.fromArray( json.v3 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction LineCurve( v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'LineCurve';\n\n\t\tthis.v1 = v1 || new Vector2();\n\t\tthis.v2 = v2 || new Vector2();\n\n\t}\n\n\tLineCurve.prototype = Object.create( Curve.prototype );\n\tLineCurve.prototype.constructor = LineCurve;\n\n\tLineCurve.prototype.isLineCurve = true;\n\n\tLineCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tif ( t === 1 ) {\n\n\t\t\tpoint.copy( this.v2 );\n\n\t\t} else {\n\n\t\t\tpoint.copy( this.v2 ).sub( this.v1 );\n\t\t\tpoint.multiplyScalar( t ).add( this.v1 );\n\n\t\t}\n\n\t\treturn point;\n\n\t};\n\n\t// Line curve is linear, so we can overwrite default getPointAt\n\n\tLineCurve.prototype.getPointAt = function ( u, optionalTarget ) {\n\n\t\treturn this.getPoint( u, optionalTarget );\n\n\t};\n\n\tLineCurve.prototype.getTangent = function ( /* t */ ) {\n\n\t\tvar tangent = this.v2.clone().sub( this.v1 );\n\n\t\treturn tangent.normalize();\n\n\t};\n\n\tLineCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tLineCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tLineCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction LineCurve3( v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'LineCurve3';\n\n\t\tthis.v1 = v1 || new Vector3();\n\t\tthis.v2 = v2 || new Vector3();\n\n\t}\n\n\tLineCurve3.prototype = Object.create( Curve.prototype );\n\tLineCurve3.prototype.constructor = LineCurve3;\n\n\tLineCurve3.prototype.isLineCurve3 = true;\n\n\tLineCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tif ( t === 1 ) {\n\n\t\t\tpoint.copy( this.v2 );\n\n\t\t} else {\n\n\t\t\tpoint.copy( this.v2 ).sub( this.v1 );\n\t\t\tpoint.multiplyScalar( t ).add( this.v1 );\n\n\t\t}\n\n\t\treturn point;\n\n\t};\n\n\t// Line curve is linear, so we can overwrite default getPointAt\n\n\tLineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {\n\n\t\treturn this.getPoint( u, optionalTarget );\n\n\t};\n\n\tLineCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tLineCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tLineCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction QuadraticBezierCurve( v0, v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'QuadraticBezierCurve';\n\n\t\tthis.v0 = v0 || new Vector2();\n\t\tthis.v1 = v1 || new Vector2();\n\t\tthis.v2 = v2 || new Vector2();\n\n\t}\n\n\tQuadraticBezierCurve.prototype = Object.create( Curve.prototype );\n\tQuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;\n\n\tQuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;\n\n\tQuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2;\n\n\t\tpoint.set(\n\t\t\tQuadraticBezier( t, v0.x, v1.x, v2.x ),\n\t\t\tQuadraticBezier( t, v0.y, v1.y, v2.y )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tQuadraticBezierCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tQuadraticBezierCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tQuadraticBezierCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction QuadraticBezierCurve3( v0, v1, v2 ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'QuadraticBezierCurve3';\n\n\t\tthis.v0 = v0 || new Vector3();\n\t\tthis.v1 = v1 || new Vector3();\n\t\tthis.v2 = v2 || new Vector3();\n\n\t}\n\n\tQuadraticBezierCurve3.prototype = Object.create( Curve.prototype );\n\tQuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;\n\n\tQuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;\n\n\tQuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector3();\n\n\t\tvar v0 = this.v0, v1 = this.v1, v2 = this.v2;\n\n\t\tpoint.set(\n\t\t\tQuadraticBezier( t, v0.x, v1.x, v2.x ),\n\t\t\tQuadraticBezier( t, v0.y, v1.y, v2.y ),\n\t\t\tQuadraticBezier( t, v0.z, v1.z, v2.z )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tQuadraticBezierCurve3.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.v0.copy( source.v0 );\n\t\tthis.v1.copy( source.v1 );\n\t\tthis.v2.copy( source.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tQuadraticBezierCurve3.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.v0 = this.v0.toArray();\n\t\tdata.v1 = this.v1.toArray();\n\t\tdata.v2 = this.v2.toArray();\n\n\t\treturn data;\n\n\t};\n\n\tQuadraticBezierCurve3.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.v0.fromArray( json.v0 );\n\t\tthis.v1.fromArray( json.v1 );\n\t\tthis.v2.fromArray( json.v2 );\n\n\t\treturn this;\n\n\t};\n\n\tfunction SplineCurve( points /* array of Vector2 */ ) {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'SplineCurve';\n\n\t\tthis.points = points || [];\n\n\t}\n\n\tSplineCurve.prototype = Object.create( Curve.prototype );\n\tSplineCurve.prototype.constructor = SplineCurve;\n\n\tSplineCurve.prototype.isSplineCurve = true;\n\n\tSplineCurve.prototype.getPoint = function ( t, optionalTarget ) {\n\n\t\tvar point = optionalTarget || new Vector2();\n\n\t\tvar points = this.points;\n\t\tvar p = ( points.length - 1 ) * t;\n\n\t\tvar intPoint = Math.floor( p );\n\t\tvar weight = p - intPoint;\n\n\t\tvar p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];\n\t\tvar p1 = points[ intPoint ];\n\t\tvar p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];\n\t\tvar p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];\n\n\t\tpoint.set(\n\t\t\tCatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),\n\t\t\tCatmullRom( weight, p0.y, p1.y, p2.y, p3.y )\n\t\t);\n\n\t\treturn point;\n\n\t};\n\n\tSplineCurve.prototype.copy = function ( source ) {\n\n\t\tCurve.prototype.copy.call( this, source );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = source.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = source.points[ i ];\n\n\t\t\tthis.points.push( point.clone() );\n\n\t\t}\n\n\t\treturn this;\n\n\t};\n\n\tSplineCurve.prototype.toJSON = function () {\n\n\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\tdata.points = [];\n\n\t\tfor ( var i = 0, l = this.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = this.points[ i ];\n\t\t\tdata.points.push( point.toArray() );\n\n\t\t}\n\n\t\treturn data;\n\n\t};\n\n\tSplineCurve.prototype.fromJSON = function ( json ) {\n\n\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\tthis.points = [];\n\n\t\tfor ( var i = 0, l = json.points.length; i < l; i ++ ) {\n\n\t\t\tvar point = json.points[ i ];\n\t\t\tthis.points.push( new Vector2().fromArray( point ) );\n\n\t\t}\n\n\t\treturn this;\n\n\t};\n\n\n\n\tvar Curves = /*#__PURE__*/Object.freeze({\n\t\tArcCurve: ArcCurve,\n\t\tCatmullRomCurve3: CatmullRomCurve3,\n\t\tCubicBezierCurve: CubicBezierCurve,\n\t\tCubicBezierCurve3: CubicBezierCurve3,\n\t\tEllipseCurve: EllipseCurve,\n\t\tLineCurve: LineCurve,\n\t\tLineCurve3: LineCurve3,\n\t\tQuadraticBezierCurve: QuadraticBezierCurve,\n\t\tQuadraticBezierCurve3: QuadraticBezierCurve3,\n\t\tSplineCurve: SplineCurve\n\t});\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t **/\n\n\t/**************************************************************\n\t *\tCurved Path - a curve path is simply a array of connected\n\t * curves, but retains the api of a curve\n\t **************************************************************/\n\n\tfunction CurvePath() {\n\n\t\tCurve.call( this );\n\n\t\tthis.type = 'CurvePath';\n\n\t\tthis.curves = [];\n\t\tthis.autoClose = false; // Automatically closes the path\n\n\t}\n\n\tCurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {\n\n\t\tconstructor: CurvePath,\n\n\t\tadd: function ( curve ) {\n\n\t\t\tthis.curves.push( curve );\n\n\t\t},\n\n\t\tclosePath: function () {\n\n\t\t\t// Add a line curve if start and end of lines are not connected\n\t\t\tvar startPoint = this.curves[ 0 ].getPoint( 0 );\n\t\t\tvar endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );\n\n\t\t\tif ( ! startPoint.equals( endPoint ) ) {\n\n\t\t\t\tthis.curves.push( new LineCurve( endPoint, startPoint ) );\n\n\t\t\t}\n\n\t\t},\n\n\t\t// To get accurate point with reference to\n\t\t// entire path distance at time t,\n\t\t// following has to be done:\n\n\t\t// 1. Length of each sub path have to be known\n\t\t// 2. Locate and identify type of curve\n\t\t// 3. Get t for the curve\n\t\t// 4. Return curve.getPointAt(t')\n\n\t\tgetPoint: function ( t ) {\n\n\t\t\tvar d = t * this.getLength();\n\t\t\tvar curveLengths = this.getCurveLengths();\n\t\t\tvar i = 0;\n\n\t\t\t// To think about boundaries points.\n\n\t\t\twhile ( i < curveLengths.length ) {\n\n\t\t\t\tif ( curveLengths[ i ] >= d ) {\n\n\t\t\t\t\tvar diff = curveLengths[ i ] - d;\n\t\t\t\t\tvar curve = this.curves[ i ];\n\n\t\t\t\t\tvar segmentLength = curve.getLength();\n\t\t\t\t\tvar u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;\n\n\t\t\t\t\treturn curve.getPointAt( u );\n\n\t\t\t\t}\n\n\t\t\t\ti ++;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t\t// loop where sum != 0, sum > d , sum+1 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {\n\n\t\t\t\tpoints.push( points[ 0 ] );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tCurve.prototype.copy.call( this, source );\n\n\t\t\tthis.curves = [];\n\n\t\t\tfor ( var i = 0, l = source.curves.length; i < l; i ++ ) {\n\n\t\t\t\tvar curve = source.curves[ i ];\n\n\t\t\t\tthis.curves.push( curve.clone() );\n\n\t\t\t}\n\n\t\t\tthis.autoClose = source.autoClose;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = Curve.prototype.toJSON.call( this );\n\n\t\t\tdata.autoClose = this.autoClose;\n\t\t\tdata.curves = [];\n\n\t\t\tfor ( var i = 0, l = this.curves.length; i < l; i ++ ) {\n\n\t\t\t\tvar curve = this.curves[ i ];\n\t\t\t\tdata.curves.push( curve.toJSON() );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tCurve.prototype.fromJSON.call( this, json );\n\n\t\t\tthis.autoClose = json.autoClose;\n\t\t\tthis.curves = [];\n\n\t\t\tfor ( var i = 0, l = json.curves.length; i < l; i ++ ) {\n\n\t\t\t\tvar curve = json.curves[ i ];\n\t\t\t\tthis.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Creates free form 2d path using series of points, lines or curves.\n\t **/\n\n\tfunction Path( points ) {\n\n\t\tCurvePath.call( this );\n\n\t\tthis.type = 'Path';\n\n\t\tthis.currentPoint = new Vector2();\n\n\t\tif ( points ) {\n\n\t\t\tthis.setFromPoints( points );\n\n\t\t}\n\n\t}\n\n\tPath.prototype = Object.assign( Object.create( CurvePath.prototype ), {\n\n\t\tconstructor: Path,\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.moveTo( points[ 0 ].x, points[ 0 ].y );\n\n\t\t\tfor ( var i = 1, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tthis.lineTo( points[ i ].x, points[ i ].y );\n\n\t\t\t}\n\n\t\t},\n\n\t\tmoveTo: function ( x, y ) {\n\n\t\t\tthis.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?\n\n\t\t},\n\n\t\tlineTo: function ( x, y ) {\n\n\t\t\tvar curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( x, y );\n\n\t\t},\n\n\t\tquadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {\n\n\t\t\tvar curve = new QuadraticBezierCurve(\n\t\t\t\tthis.currentPoint.clone(),\n\t\t\t\tnew Vector2( aCPx, aCPy ),\n\t\t\t\tnew Vector2( aX, aY )\n\t\t\t);\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( aX, aY );\n\n\t\t},\n\n\t\tbezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {\n\n\t\t\tvar curve = new CubicBezierCurve(\n\t\t\t\tthis.currentPoint.clone(),\n\t\t\t\tnew Vector2( aCP1x, aCP1y ),\n\t\t\t\tnew Vector2( aCP2x, aCP2y ),\n\t\t\t\tnew Vector2( aX, aY )\n\t\t\t);\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( aX, aY );\n\n\t\t},\n\n\t\tsplineThru: function ( pts /*Array of Vector*/ ) {\n\n\t\t\tvar npts = [ this.currentPoint.clone() ].concat( pts );\n\n\t\t\tvar curve = new SplineCurve( npts );\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.copy( pts[ pts.length - 1 ] );\n\n\t\t},\n\n\t\tarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\t\tvar x0 = this.currentPoint.x;\n\t\t\tvar y0 = this.currentPoint.y;\n\n\t\t\tthis.absarc( aX + x0, aY + y0, aRadius,\n\t\t\t\taStartAngle, aEndAngle, aClockwise );\n\n\t\t},\n\n\t\tabsarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\t\tthis.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );\n\n\t\t},\n\n\t\tellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\t\tvar x0 = this.currentPoint.x;\n\t\t\tvar y0 = this.currentPoint.y;\n\n\t\t\tthis.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );\n\n\t\t},\n\n\t\tabsellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\t\tvar curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );\n\n\t\t\tif ( this.curves.length > 0 ) {\n\n\t\t\t\t// if a previous curve is present, attempt to join\n\t\t\t\tvar firstPoint = curve.getPoint( 0 );\n\n\t\t\t\tif ( ! firstPoint.equals( this.currentPoint ) ) {\n\n\t\t\t\t\tthis.lineTo( firstPoint.x, firstPoint.y );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tvar lastPoint = curve.getPoint( 1 );\n\t\t\tthis.currentPoint.copy( lastPoint );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tCurvePath.prototype.copy.call( this, source );\n\n\t\t\tthis.currentPoint.copy( source.currentPoint );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = CurvePath.prototype.toJSON.call( this );\n\n\t\t\tdata.currentPoint = this.currentPoint.toArray();\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tCurvePath.prototype.fromJSON.call( this, json );\n\n\t\t\tthis.currentPoint.fromArray( json.currentPoint );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Defines a 2d shape plane using paths.\n\t **/\n\n\t// STEP 1 Create a path.\n\t// STEP 2 Turn path into shape.\n\t// STEP 3 ExtrudeGeometry takes in Shape/Shapes\n\t// STEP 3a - Extract points from each shape, turn to vertices\n\t// STEP 3b - Triangulate each shape, add faces.\n\n\tfunction Shape( points ) {\n\n\t\tPath.call( this, points );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.type = 'Shape';\n\n\t\tthis.holes = [];\n\n\t}\n\n\tShape.prototype = Object.assign( Object.create( Path.prototype ), {\n\n\t\tconstructor: Shape,\n\n\t\tgetPointsHoles: function ( divisions ) {\n\n\t\t\tvar holesPts = [];\n\n\t\t\tfor ( var i = 0, l = this.holes.length; i < l; i ++ ) {\n\n\t\t\t\tholesPts[ i ] = this.holes[ i ].getPoints( divisions );\n\n\t\t\t}\n\n\t\t\treturn holesPts;\n\n\t\t},\n\n\t\t// get points of shape and holes (keypoints based on segments parameter)\n\n\t\textractPoints: function ( divisions ) {\n\n\t\t\treturn {\n\n\t\t\t\tshape: this.getPoints( divisions ),\n\t\t\t\tholes: this.getPointsHoles( divisions )\n\n\t\t\t};\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tPath.prototype.copy.call( this, source );\n\n\t\t\tthis.holes = [];\n\n\t\t\tfor ( var i = 0, l = source.holes.length; i < l; i ++ ) {\n\n\t\t\t\tvar hole = source.holes[ i ];\n\n\t\t\t\tthis.holes.push( hole.clone() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = Path.prototype.toJSON.call( this );\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.holes = [];\n\n\t\t\tfor ( var i = 0, l = this.holes.length; i < l; i ++ ) {\n\n\t\t\t\tvar hole = this.holes[ i ];\n\t\t\t\tdata.holes.push( hole.toJSON() );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tfromJSON: function ( json ) {\n\n\t\t\tPath.prototype.fromJSON.call( this, json );\n\n\t\t\tthis.uuid = json.uuid;\n\t\t\tthis.holes = [];\n\n\t\t\tfor ( var i = 0, l = json.holes.length; i < l; i ++ ) {\n\n\t\t\t\tvar hole = json.holes[ i ];\n\t\t\t\tthis.holes.push( new Path().fromJSON( hole ) );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Light( color, intensity ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Light';\n\n\t\tthis.color = new Color( color );\n\t\tthis.intensity = intensity !== undefined ? intensity : 1;\n\n\t\tthis.receiveShadow = undefined;\n\n\t}\n\n\tLight.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Light,\n\n\t\tisLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.color.copy( source.color );\n\t\t\tthis.intensity = source.intensity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.color = this.color.getHex();\n\t\t\tdata.object.intensity = this.intensity;\n\n\t\t\tif ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();\n\n\t\t\tif ( this.distance !== undefined ) data.object.distance = this.distance;\n\t\t\tif ( this.angle !== undefined ) data.object.angle = this.angle;\n\t\t\tif ( this.decay !== undefined ) data.object.decay = this.decay;\n\t\t\tif ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;\n\n\t\t\tif ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction HemisphereLight( skyColor, groundColor, intensity ) {\n\n\t\tLight.call( this, skyColor, intensity );\n\n\t\tthis.type = 'HemisphereLight';\n\n\t\tthis.castShadow = undefined;\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.groundColor = new Color( groundColor );\n\n\t}\n\n\tHemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: HemisphereLight,\n\n\t\tisHemisphereLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.groundColor.copy( source.groundColor );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LightShadow( camera ) {\n\n\t\tthis.camera = camera;\n\n\t\tthis.bias = 0;\n\t\tthis.radius = 1;\n\n\t\tthis.mapSize = new Vector2( 512, 512 );\n\n\t\tthis.map = null;\n\t\tthis.matrix = new Matrix4();\n\n\t}\n\n\tObject.assign( LightShadow.prototype, {\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.camera = source.camera.clone();\n\n\t\t\tthis.bias = source.bias;\n\t\t\tthis.radius = source.radius;\n\n\t\t\tthis.mapSize.copy( source.mapSize );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar object = {};\n\n\t\t\tif ( this.bias !== 0 ) object.bias = this.bias;\n\t\t\tif ( this.radius !== 1 ) object.radius = this.radius;\n\t\t\tif ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();\n\n\t\t\tobject.camera = this.camera.toJSON( false ).object;\n\t\t\tdelete object.camera.matrix;\n\n\t\t\treturn object;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction SpotLightShadow() {\n\n\t\tLightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );\n\n\t}\n\n\tSpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {\n\n\t\tconstructor: SpotLightShadow,\n\n\t\tisSpotLightShadow: true,\n\n\t\tupdate: function ( light ) {\n\n\t\t\tvar camera = this.camera;\n\n\t\t\tvar fov = _Math.RAD2DEG * 2 * light.angle;\n\t\t\tvar aspect = this.mapSize.width / this.mapSize.height;\n\t\t\tvar far = light.distance || camera.far;\n\n\t\t\tif ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {\n\n\t\t\t\tcamera.fov = fov;\n\t\t\t\tcamera.aspect = aspect;\n\t\t\t\tcamera.far = far;\n\t\t\t\tcamera.updateProjectionMatrix();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction SpotLight( color, intensity, distance, angle, penumbra, decay ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'SpotLight';\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.target = new Object3D();\n\n\t\tObject.defineProperty( this, 'power', {\n\t\t\tget: function () {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\treturn this.intensity * Math.PI;\n\n\t\t\t},\n\t\t\tset: function ( power ) {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\tthis.intensity = power / Math.PI;\n\n\t\t\t}\n\t\t} );\n\n\t\tthis.distance = ( distance !== undefined ) ? distance : 0;\n\t\tthis.angle = ( angle !== undefined ) ? angle : Math.PI / 3;\n\t\tthis.penumbra = ( penumbra !== undefined ) ? penumbra : 0;\n\t\tthis.decay = ( decay !== undefined ) ? decay : 1;\t// for physically correct lights, should be 2.\n\n\t\tthis.shadow = new SpotLightShadow();\n\n\t}\n\n\tSpotLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: SpotLight,\n\n\t\tisSpotLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.distance = source.distance;\n\t\t\tthis.angle = source.angle;\n\t\t\tthis.penumbra = source.penumbra;\n\t\t\tthis.decay = source.decay;\n\n\t\t\tthis.target = source.target.clone();\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction PointLight( color, intensity, distance, decay ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'PointLight';\n\n\t\tObject.defineProperty( this, 'power', {\n\t\t\tget: function () {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\treturn this.intensity * 4 * Math.PI;\n\n\t\t\t},\n\t\t\tset: function ( power ) {\n\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf\n\t\t\t\tthis.intensity = power / ( 4 * Math.PI );\n\n\t\t\t}\n\t\t} );\n\n\t\tthis.distance = ( distance !== undefined ) ? distance : 0;\n\t\tthis.decay = ( decay !== undefined ) ? decay : 1;\t// for physically correct lights, should be 2.\n\n\t\tthis.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );\n\n\t}\n\n\tPointLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: PointLight,\n\n\t\tisPointLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.distance = source.distance;\n\t\t\tthis.decay = source.decay;\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction DirectionalLightShadow( ) {\n\n\t\tLightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );\n\n\t}\n\n\tDirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {\n\n\t\tconstructor: DirectionalLightShadow\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction DirectionalLight( color, intensity ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'DirectionalLight';\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.target = new Object3D();\n\n\t\tthis.shadow = new DirectionalLightShadow();\n\n\t}\n\n\tDirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: DirectionalLight,\n\n\t\tisDirectionalLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.target = source.target.clone();\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AmbientLight( color, intensity ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'AmbientLight';\n\n\t\tthis.castShadow = undefined;\n\n\t}\n\n\tAmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: AmbientLight,\n\n\t\tisAmbientLight: true\n\n\t} );\n\n\t/**\n\t * @author abelnation / http://github.com/abelnation\n\t */\n\n\tfunction RectAreaLight( color, intensity, width, height ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'RectAreaLight';\n\n\t\tthis.width = ( width !== undefined ) ? width : 10;\n\t\tthis.height = ( height !== undefined ) ? height : 10;\n\n\t}\n\n\tRectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: RectAreaLight,\n\n\t\tisRectAreaLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.width = source.width;\n\t\t\tthis.height = source.height;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Light.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.width = this.width;\n\t\t\tdata.object.height = this.height;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t */\n\n\tvar AnimationUtils = {\n\n\t\t// same as Array.prototype.slice, but also works on typed arrays\n\t\tarraySlice: function ( array, from, to ) {\n\n\t\t\tif ( AnimationUtils.isTypedArray( array ) ) {\n\n\t\t\t\t// in ios9 array.subarray(from, undefined) will return empty array\n\t\t\t\t// but array.subarray(from) or array.subarray(from, len) is correct\n\t\t\t\treturn new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );\n\n\t\t\t}\n\n\t\t\treturn array.slice( from, to );\n\n\t\t},\n\n\t\t// converts an array to a specific type\n\t\tconvertArray: function ( array, type, forceClone ) {\n\n\t\t\tif ( ! array || // let 'undefined' and 'null' pass\n\t\t\t\t\t! forceClone && array.constructor === type ) return array;\n\n\t\t\tif ( typeof type.BYTES_PER_ELEMENT === 'number' ) {\n\n\t\t\t\treturn new type( array ); // create typed array\n\n\t\t\t}\n\n\t\t\treturn Array.prototype.slice.call( array ); // create Array\n\n\t\t},\n\n\t\tisTypedArray: function ( object ) {\n\n\t\t\treturn ArrayBuffer.isView( object ) &&\n\t\t\t\t\t! ( object instanceof DataView );\n\n\t\t},\n\n\t\t// returns an array by which times and values can be sorted\n\t\tgetKeyframeOrder: function ( times ) {\n\n\t\t\tfunction compareTime( i, j ) {\n\n\t\t\t\treturn times[ i ] - times[ j ];\n\n\t\t\t}\n\n\t\t\tvar n = times.length;\n\t\t\tvar result = new Array( n );\n\t\t\tfor ( var i = 0; i !== n; ++ i ) result[ i ] = i;\n\n\t\t\tresult.sort( compareTime );\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// uses the array previously returned by 'getKeyframeOrder' to sort data\n\t\tsortedArray: function ( values, stride, order ) {\n\n\t\t\tvar nValues = values.length;\n\t\t\tvar result = new values.constructor( nValues );\n\n\t\t\tfor ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {\n\n\t\t\t\tvar srcOffset = order[ i ] * stride;\n\n\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\tresult[ dstOffset ++ ] = values[ srcOffset + j ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// function for parsing AOS keyframe formats\n\t\tflattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {\n\n\t\t\tvar i = 1, key = jsonKeys[ 0 ];\n\n\t\t\twhile ( key !== undefined && key[ valuePropertyName ] === undefined ) {\n\n\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t}\n\n\t\t\tif ( key === undefined ) return; // no data\n\n\t\t\tvar value = key[ valuePropertyName ];\n\t\t\tif ( value === undefined ) return; // no data\n\n\t\t\tif ( Array.isArray( value ) ) {\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalues.push.apply( values, value ); // push all elements\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t} else if ( value.toArray !== undefined ) {\n\n\t\t\t\t// ...assume THREE.Math-ish\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalue.toArray( values, values.length );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t} else {\n\n\t\t\t\t// otherwise push as-is\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalues.push( value );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\t/**\n\t * Abstract base class of interpolants over parametric samples.\n\t *\n\t * The parameter domain is one dimensional, typically the time or a path\n\t * along a curve defined by the data.\n\t *\n\t * The sample values can have any dimensionality and derived classes may\n\t * apply special interpretations to the data.\n\t *\n\t * This class provides the interval seek in a Template Method, deferring\n\t * the actual interpolation to derived classes.\n\t *\n\t * Time complexity is O(1) for linear access crossing at most two points\n\t * and O(log N) for random access, where N is the number of positions.\n\t *\n\t * References:\n\t *\n\t * \t\thttp://www.oodesign.com/template-method-pattern.html\n\t *\n\t * @author tschw\n\t */\n\n\tfunction Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tthis.parameterPositions = parameterPositions;\n\t\tthis._cachedIndex = 0;\n\n\t\tthis.resultBuffer = resultBuffer !== undefined ?\n\t\t\tresultBuffer : new sampleValues.constructor( sampleSize );\n\t\tthis.sampleValues = sampleValues;\n\t\tthis.valueSize = sampleSize;\n\n\t}\n\n\tObject.assign( Interpolant.prototype, {\n\n\t\tevaluate: function ( t ) {\n\n\t\t\tvar pp = this.parameterPositions,\n\t\t\t\ti1 = this._cachedIndex,\n\n\t\t\t\tt1 = pp[ i1 ],\n\t\t\t\tt0 = pp[ i1 - 1 ];\n\n\t\t\tvalidate_interval: {\n\n\t\t\t\tseek: {\n\n\t\t\t\t\tvar right;\n\n\t\t\t\t\tlinear_scan: {\n\n\t\t\t\t\t\t//- See http://jsperf.com/comparison-to-undefined/3\n\t\t\t\t\t\t//- slower code:\n\t\t\t\t\t\t//-\n\t\t\t\t\t\t//- \t\t\t\tif ( t >= t1 || t1 === undefined ) {\n\t\t\t\t\t\tforward_scan: if ( ! ( t < t1 ) ) {\n\n\t\t\t\t\t\t\tfor ( var giveUpAt = i1 + 2; ; ) {\n\n\t\t\t\t\t\t\t\tif ( t1 === undefined ) {\n\n\t\t\t\t\t\t\t\t\tif ( t < t0 ) break forward_scan;\n\n\t\t\t\t\t\t\t\t\t// after end\n\n\t\t\t\t\t\t\t\t\ti1 = pp.length;\n\t\t\t\t\t\t\t\t\tthis._cachedIndex = i1;\n\t\t\t\t\t\t\t\t\treturn this.afterEnd_( i1 - 1, t, t0 );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif ( i1 === giveUpAt ) break; // this loop\n\n\t\t\t\t\t\t\t\tt0 = t1;\n\t\t\t\t\t\t\t\tt1 = pp[ ++ i1 ];\n\n\t\t\t\t\t\t\t\tif ( t < t1 ) {\n\n\t\t\t\t\t\t\t\t\t// we have arrived at the sought interval\n\t\t\t\t\t\t\t\t\tbreak seek;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// prepare binary search on the right side of the index\n\t\t\t\t\t\t\tright = pp.length;\n\t\t\t\t\t\t\tbreak linear_scan;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t//- slower code:\n\t\t\t\t\t\t//-\t\t\t\t\tif ( t < t0 || t0 === undefined ) {\n\t\t\t\t\t\tif ( ! ( t >= t0 ) ) {\n\n\t\t\t\t\t\t\t// looping?\n\n\t\t\t\t\t\t\tvar t1global = pp[ 1 ];\n\n\t\t\t\t\t\t\tif ( t < t1global ) {\n\n\t\t\t\t\t\t\t\ti1 = 2; // + 1, using the scan for the details\n\t\t\t\t\t\t\t\tt0 = t1global;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// linear reverse scan\n\n\t\t\t\t\t\t\tfor ( var giveUpAt = i1 - 2; ; ) {\n\n\t\t\t\t\t\t\t\tif ( t0 === undefined ) {\n\n\t\t\t\t\t\t\t\t\t// before start\n\n\t\t\t\t\t\t\t\t\tthis._cachedIndex = 0;\n\t\t\t\t\t\t\t\t\treturn this.beforeStart_( 0, t, t1 );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif ( i1 === giveUpAt ) break; // this loop\n\n\t\t\t\t\t\t\t\tt1 = t0;\n\t\t\t\t\t\t\t\tt0 = pp[ -- i1 - 1 ];\n\n\t\t\t\t\t\t\t\tif ( t >= t0 ) {\n\n\t\t\t\t\t\t\t\t\t// we have arrived at the sought interval\n\t\t\t\t\t\t\t\t\tbreak seek;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// prepare binary search on the left side of the index\n\t\t\t\t\t\t\tright = i1;\n\t\t\t\t\t\t\ti1 = 0;\n\t\t\t\t\t\t\tbreak linear_scan;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// the interval is valid\n\n\t\t\t\t\t\tbreak validate_interval;\n\n\t\t\t\t\t} // linear scan\n\n\t\t\t\t\t// binary search\n\n\t\t\t\t\twhile ( i1 < right ) {\n\n\t\t\t\t\t\tvar mid = ( i1 + right ) >>> 1;\n\n\t\t\t\t\t\tif ( t < pp[ mid ] ) {\n\n\t\t\t\t\t\t\tright = mid;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\ti1 = mid + 1;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tt1 = pp[ i1 ];\n\t\t\t\t\tt0 = pp[ i1 - 1 ];\n\n\t\t\t\t\t// check boundary cases, again\n\n\t\t\t\t\tif ( t0 === undefined ) {\n\n\t\t\t\t\t\tthis._cachedIndex = 0;\n\t\t\t\t\t\treturn this.beforeStart_( 0, t, t1 );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( t1 === undefined ) {\n\n\t\t\t\t\t\ti1 = pp.length;\n\t\t\t\t\t\tthis._cachedIndex = i1;\n\t\t\t\t\t\treturn this.afterEnd_( i1 - 1, t0, t );\n\n\t\t\t\t\t}\n\n\t\t\t\t} // seek\n\n\t\t\t\tthis._cachedIndex = i1;\n\n\t\t\t\tthis.intervalChanged_( i1, t0, t1 );\n\n\t\t\t} // validate_interval\n\n\t\t\treturn this.interpolate_( i1, t0, t, t1 );\n\n\t\t},\n\n\t\tsettings: null, // optional, subclass-specific settings structure\n\t\t// Note: The indirection allows central control of many interpolants.\n\n\t\t// --- Protected interface\n\n\t\tDefaultSettings_: {},\n\n\t\tgetSettings_: function () {\n\n\t\t\treturn this.settings || this.DefaultSettings_;\n\n\t\t},\n\n\t\tcopySampleValue_: function ( index ) {\n\n\t\t\t// copies a sample value to the result buffer\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\t\t\t\toffset = index * stride;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] = values[ offset + i ];\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// Template methods for derived classes:\n\n\t\tinterpolate_: function ( /* i1, t0, t, t1 */ ) {\n\n\t\t\tthrow new Error( 'call to abstract method' );\n\t\t\t// implementations shall return this.resultBuffer\n\n\t\t},\n\n\t\tintervalChanged_: function ( /* i1, t0, t1 */ ) {\n\n\t\t\t// empty\n\n\t\t}\n\n\t} );\n\n\t//!\\ DECLARE ALIAS AFTER assign prototype !\n\tObject.assign( Interpolant.prototype, {\n\n\t\t//( 0, t, t0 ), returns this.resultBuffer\n\t\tbeforeStart_: Interpolant.prototype.copySampleValue_,\n\n\t\t//( N-1, tN-1, t ), returns this.resultBuffer\n\t\tafterEnd_: Interpolant.prototype.copySampleValue_,\n\n\t} );\n\n\t/**\n\t * Fast and simple cubic spline interpolant.\n\t *\n\t * It was derived from a Hermitian construction setting the first derivative\n\t * at each sample position to the linear slope between neighboring positions\n\t * over their parameter interval.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t\tthis._weightPrev = - 0;\n\t\tthis._offsetPrev = - 0;\n\t\tthis._weightNext = - 0;\n\t\tthis._offsetNext = - 0;\n\n\t}\n\n\tCubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: CubicInterpolant,\n\n\t\tDefaultSettings_: {\n\n\t\t\tendingStart: ZeroCurvatureEnding,\n\t\t\tendingEnd: ZeroCurvatureEnding\n\n\t\t},\n\n\t\tintervalChanged_: function ( i1, t0, t1 ) {\n\n\t\t\tvar pp = this.parameterPositions,\n\t\t\t\tiPrev = i1 - 2,\n\t\t\t\tiNext = i1 + 1,\n\n\t\t\t\ttPrev = pp[ iPrev ],\n\t\t\t\ttNext = pp[ iNext ];\n\n\t\t\tif ( tPrev === undefined ) {\n\n\t\t\t\tswitch ( this.getSettings_().endingStart ) {\n\n\t\t\t\t\tcase ZeroSlopeEnding:\n\n\t\t\t\t\t\t// f'(t0) = 0\n\t\t\t\t\t\tiPrev = i1;\n\t\t\t\t\t\ttPrev = 2 * t0 - t1;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase WrapAroundEnding:\n\n\t\t\t\t\t\t// use the other end of the curve\n\t\t\t\t\t\tiPrev = pp.length - 2;\n\t\t\t\t\t\ttPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault: // ZeroCurvatureEnding\n\n\t\t\t\t\t\t// f''(t0) = 0 a.k.a. Natural Spline\n\t\t\t\t\t\tiPrev = i1;\n\t\t\t\t\t\ttPrev = t1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( tNext === undefined ) {\n\n\t\t\t\tswitch ( this.getSettings_().endingEnd ) {\n\n\t\t\t\t\tcase ZeroSlopeEnding:\n\n\t\t\t\t\t\t// f'(tN) = 0\n\t\t\t\t\t\tiNext = i1;\n\t\t\t\t\t\ttNext = 2 * t1 - t0;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase WrapAroundEnding:\n\n\t\t\t\t\t\t// use the other end of the curve\n\t\t\t\t\t\tiNext = 1;\n\t\t\t\t\t\ttNext = t1 + pp[ 1 ] - pp[ 0 ];\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault: // ZeroCurvatureEnding\n\n\t\t\t\t\t\t// f''(tN) = 0, a.k.a. Natural Spline\n\t\t\t\t\t\tiNext = i1 - 1;\n\t\t\t\t\t\ttNext = t0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar halfDt = ( t1 - t0 ) * 0.5,\n\t\t\t\tstride = this.valueSize;\n\n\t\t\tthis._weightPrev = halfDt / ( t0 - tPrev );\n\t\t\tthis._weightNext = halfDt / ( tNext - t1 );\n\t\t\tthis._offsetPrev = iPrev * stride;\n\t\t\tthis._offsetNext = iNext * stride;\n\n\t\t},\n\n\t\tinterpolate_: function ( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\to1 = i1 * stride,\t\to0 = o1 - stride,\n\t\t\t\toP = this._offsetPrev, \toN = this._offsetNext,\n\t\t\t\twP = this._weightPrev,\twN = this._weightNext,\n\n\t\t\t\tp = ( t - t0 ) / ( t1 - t0 ),\n\t\t\t\tpp = p * p,\n\t\t\t\tppp = pp * p;\n\n\t\t\t// evaluate polynomials\n\n\t\t\tvar sP = - wP * ppp + 2 * wP * pp - wP * p;\n\t\t\tvar s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;\n\t\t\tvar s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;\n\t\t\tvar sN = wN * ppp - wN * pp;\n\n\t\t\t// combine data linearly\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] =\n\t\t\t\t\t\tsP * values[ oP + i ] +\n\t\t\t\t\t\ts0 * values[ o0 + i ] +\n\t\t\t\t\t\ts1 * values[ o1 + i ] +\n\t\t\t\t\t\tsN * values[ oN + i ];\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t */\n\n\tfunction LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: LinearInterpolant,\n\n\t\tinterpolate_: function ( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toffset1 = i1 * stride,\n\t\t\t\toffset0 = offset1 - stride,\n\n\t\t\t\tweight1 = ( t - t0 ) / ( t1 - t0 ),\n\t\t\t\tweight0 = 1 - weight1;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] =\n\t\t\t\t\t\tvalues[ offset0 + i ] * weight0 +\n\t\t\t\t\t\tvalues[ offset1 + i ] * weight1;\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Interpolant that evaluates to the sample value at the position preceeding\n\t * the parameter.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tDiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: DiscreteInterpolant,\n\n\t\tinterpolate_: function ( i1 /*, t0, t, t1 */ ) {\n\n\t\t\treturn this.copySampleValue_( i1 - 1 );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A timed sequence of keyframes for a specific property.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction KeyframeTrack( name, times, values, interpolation ) {\n\n\t\tif ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );\n\t\tif ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );\n\n\t\tthis.name = name;\n\n\t\tthis.times = AnimationUtils.convertArray( times, this.TimeBufferType );\n\t\tthis.values = AnimationUtils.convertArray( values, this.ValueBufferType );\n\n\t\tthis.setInterpolation( interpolation || this.DefaultInterpolation );\n\n\t}\n\n\t// Static methods\n\n\tObject.assign( KeyframeTrack, {\n\n\t\t// Serialization (in static context, because of constructor invocation\n\t\t// and automatic invocation of .toJSON):\n\n\t\ttoJSON: function ( track ) {\n\n\t\t\tvar trackType = track.constructor;\n\n\t\t\tvar json;\n\n\t\t\t// derived classes can define a static toJSON method\n\t\t\tif ( trackType.toJSON !== undefined ) {\n\n\t\t\t\tjson = trackType.toJSON( track );\n\n\t\t\t} else {\n\n\t\t\t\t// by default, we assume the data can be serialized as-is\n\t\t\t\tjson = {\n\n\t\t\t\t\t'name': track.name,\n\t\t\t\t\t'times': AnimationUtils.convertArray( track.times, Array ),\n\t\t\t\t\t'values': AnimationUtils.convertArray( track.values, Array )\n\n\t\t\t\t};\n\n\t\t\t\tvar interpolation = track.getInterpolation();\n\n\t\t\t\tif ( interpolation !== track.DefaultInterpolation ) {\n\n\t\t\t\t\tjson.interpolation = interpolation;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tjson.type = track.ValueTypeName; // mandatory\n\n\t\t\treturn json;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( KeyframeTrack.prototype, {\n\n\t\tconstructor: KeyframeTrack,\n\n\t\tTimeBufferType: Float32Array,\n\n\t\tValueBufferType: Float32Array,\n\n\t\tDefaultInterpolation: InterpolateLinear,\n\n\t\tInterpolantFactoryMethodDiscrete: function ( result ) {\n\n\t\t\treturn new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodLinear: function ( result ) {\n\n\t\t\treturn new LinearInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodSmooth: function ( result ) {\n\n\t\t\treturn new CubicInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tsetInterpolation: function ( interpolation ) {\n\n\t\t\tvar factoryMethod;\n\n\t\t\tswitch ( interpolation ) {\n\n\t\t\t\tcase InterpolateDiscrete:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodDiscrete;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase InterpolateLinear:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodLinear;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase InterpolateSmooth:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodSmooth;\n\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tif ( factoryMethod === undefined ) {\n\n\t\t\t\tvar message = \"unsupported interpolation for \" +\n\t\t\t\t\tthis.ValueTypeName + \" keyframe track named \" + this.name;\n\n\t\t\t\tif ( this.createInterpolant === undefined ) {\n\n\t\t\t\t\t// fall back to default, unless the default itself is messed up\n\t\t\t\t\tif ( interpolation !== this.DefaultInterpolation ) {\n\n\t\t\t\t\t\tthis.setInterpolation( this.DefaultInterpolation );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tthrow new Error( message ); // fatal, in this case\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tconsole.warn( 'THREE.KeyframeTrack:', message );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tthis.createInterpolant = factoryMethod;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetInterpolation: function () {\n\n\t\t\tswitch ( this.createInterpolant ) {\n\n\t\t\t\tcase this.InterpolantFactoryMethodDiscrete:\n\n\t\t\t\t\treturn InterpolateDiscrete;\n\n\t\t\t\tcase this.InterpolantFactoryMethodLinear:\n\n\t\t\t\t\treturn InterpolateLinear;\n\n\t\t\t\tcase this.InterpolantFactoryMethodSmooth:\n\n\t\t\t\t\treturn InterpolateSmooth;\n\n\t\t\t}\n\n\t\t},\n\n\t\tgetValueSize: function () {\n\n\t\t\treturn this.values.length / this.times.length;\n\n\t\t},\n\n\t\t// move all keyframes either forwards or backwards in time\n\t\tshift: function ( timeOffset ) {\n\n\t\t\tif ( timeOffset !== 0.0 ) {\n\n\t\t\t\tvar times = this.times;\n\n\t\t\t\tfor ( var i = 0, n = times.length; i !== n; ++ i ) {\n\n\t\t\t\t\ttimes[ i ] += timeOffset;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// scale all keyframe times by a factor (useful for frame <-> seconds conversions)\n\t\tscale: function ( timeScale ) {\n\n\t\t\tif ( timeScale !== 1.0 ) {\n\n\t\t\t\tvar times = this.times;\n\n\t\t\t\tfor ( var i = 0, n = times.length; i !== n; ++ i ) {\n\n\t\t\t\t\ttimes[ i ] *= timeScale;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// removes keyframes before and after animation without changing any values within the range [startTime, endTime].\n\t\t// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values\n\t\ttrim: function ( startTime, endTime ) {\n\n\t\t\tvar times = this.times,\n\t\t\t\tnKeys = times.length,\n\t\t\t\tfrom = 0,\n\t\t\t\tto = nKeys - 1;\n\n\t\t\twhile ( from !== nKeys && times[ from ] < startTime ) {\n\n\t\t\t\t++ from;\n\n\t\t\t}\n\n\t\t\twhile ( to !== - 1 && times[ to ] > endTime ) {\n\n\t\t\t\t-- to;\n\n\t\t\t}\n\n\t\t\t++ to; // inclusive -> exclusive bound\n\n\t\t\tif ( from !== 0 || to !== nKeys ) {\n\n\t\t\t\t// empty tracks are forbidden, so keep at least one keyframe\n\t\t\t\tif ( from >= to ) to = Math.max( to, 1 ), from = to - 1;\n\n\t\t\t\tvar stride = this.getValueSize();\n\t\t\t\tthis.times = AnimationUtils.arraySlice( times, from, to );\n\t\t\t\tthis.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable\n\t\tvalidate: function () {\n\n\t\t\tvar valid = true;\n\n\t\t\tvar valueSize = this.getValueSize();\n\t\t\tif ( valueSize - Math.floor( valueSize ) !== 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );\n\t\t\t\tvalid = false;\n\n\t\t\t}\n\n\t\t\tvar times = this.times,\n\t\t\t\tvalues = this.values,\n\n\t\t\t\tnKeys = times.length;\n\n\t\t\tif ( nKeys === 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Track is empty.', this );\n\t\t\t\tvalid = false;\n\n\t\t\t}\n\n\t\t\tvar prevTime = null;\n\n\t\t\tfor ( var i = 0; i !== nKeys; i ++ ) {\n\n\t\t\t\tvar currTime = times[ i ];\n\n\t\t\t\tif ( typeof currTime === 'number' && isNaN( currTime ) ) {\n\n\t\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );\n\t\t\t\t\tvalid = false;\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tif ( prevTime !== null && prevTime > currTime ) {\n\n\t\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );\n\t\t\t\t\tvalid = false;\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tprevTime = currTime;\n\n\t\t\t}\n\n\t\t\tif ( values !== undefined ) {\n\n\t\t\t\tif ( AnimationUtils.isTypedArray( values ) ) {\n\n\t\t\t\t\tfor ( var i = 0, n = values.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tvar value = values[ i ];\n\n\t\t\t\t\t\tif ( isNaN( value ) ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );\n\t\t\t\t\t\t\tvalid = false;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn valid;\n\n\t\t},\n\n\t\t// removes equivalent sequential keys as common in morph target sequences\n\t\t// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)\n\t\toptimize: function () {\n\n\t\t\tvar times = this.times,\n\t\t\t\tvalues = this.values,\n\t\t\t\tstride = this.getValueSize(),\n\n\t\t\t\tsmoothInterpolation = this.getInterpolation() === InterpolateSmooth,\n\n\t\t\t\twriteIndex = 1,\n\t\t\t\tlastIndex = times.length - 1;\n\n\t\t\tfor ( var i = 1; i < lastIndex; ++ i ) {\n\n\t\t\t\tvar keep = false;\n\n\t\t\t\tvar time = times[ i ];\n\t\t\t\tvar timeNext = times[ i + 1 ];\n\n\t\t\t\t// remove adjacent keyframes scheduled at the same time\n\n\t\t\t\tif ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {\n\n\t\t\t\t\tif ( ! smoothInterpolation ) {\n\n\t\t\t\t\t\t// remove unnecessary keyframes same as their neighbors\n\n\t\t\t\t\t\tvar offset = i * stride,\n\t\t\t\t\t\t\toffsetP = offset - stride,\n\t\t\t\t\t\t\toffsetN = offset + stride;\n\n\t\t\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\t\t\tvar value = values[ offset + j ];\n\n\t\t\t\t\t\t\tif ( value !== values[ offsetP + j ] ||\n\t\t\t\t\t\t\t\tvalue !== values[ offsetN + j ] ) {\n\n\t\t\t\t\t\t\t\tkeep = true;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tkeep = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// in-place compaction\n\n\t\t\t\tif ( keep ) {\n\n\t\t\t\t\tif ( i !== writeIndex ) {\n\n\t\t\t\t\t\ttimes[ writeIndex ] = times[ i ];\n\n\t\t\t\t\t\tvar readOffset = i * stride,\n\t\t\t\t\t\t\twriteOffset = writeIndex * stride;\n\n\t\t\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\t\t\tvalues[ writeOffset + j ] = values[ readOffset + j ];\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\t++ writeIndex;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// flush last keyframe (compaction looks ahead)\n\n\t\t\tif ( lastIndex > 0 ) {\n\n\t\t\t\ttimes[ writeIndex ] = times[ lastIndex ];\n\n\t\t\t\tfor ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\tvalues[ writeOffset + j ] = values[ readOffset + j ];\n\n\t\t\t\t}\n\n\t\t\t\t++ writeIndex;\n\n\t\t\t}\n\n\t\t\tif ( writeIndex !== times.length ) {\n\n\t\t\t\tthis.times = AnimationUtils.arraySlice( times, 0, writeIndex );\n\t\t\t\tthis.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of Boolean keyframe values.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction BooleanKeyframeTrack( name, times, values ) {\n\n\t\tKeyframeTrack.call( this, name, times, values );\n\n\t}\n\n\tBooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: BooleanKeyframeTrack,\n\n\t\tValueTypeName: 'bool',\n\t\tValueBufferType: Array,\n\n\t\tDefaultInterpolation: InterpolateDiscrete,\n\n\t\tInterpolantFactoryMethodLinear: undefined,\n\t\tInterpolantFactoryMethodSmooth: undefined\n\n\t\t// Note: Actually this track could have a optimized / compressed\n\t\t// representation of a single value and a custom interpolant that\n\t\t// computes \"firstValue ^ isOdd( index )\".\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of keyframe values that represent color.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction ColorKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: ColorKeyframeTrack,\n\n\t\tValueTypeName: 'color'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t\t// Note: Very basic implementation and nothing special yet.\n\t\t// However, this is the place for color space parameterization.\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of numeric keyframe values.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction NumberKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tNumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: NumberKeyframeTrack,\n\n\t\tValueTypeName: 'number'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t} );\n\n\t/**\n\t * Spherical linear unit quaternion interpolant.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tQuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: QuaternionLinearInterpolant,\n\n\t\tinterpolate_: function ( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toffset = i1 * stride,\n\n\t\t\t\talpha = ( t - t0 ) / ( t1 - t0 );\n\n\t\t\tfor ( var end = offset + stride; offset !== end; offset += 4 ) {\n\n\t\t\t\tQuaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of quaternion keyframe values.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction QuaternionKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tQuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: QuaternionKeyframeTrack,\n\n\t\tValueTypeName: 'quaternion',\n\n\t\t// ValueBufferType is inherited\n\n\t\tDefaultInterpolation: InterpolateLinear,\n\n\t\tInterpolantFactoryMethodLinear: function ( result ) {\n\n\t\t\treturn new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodSmooth: undefined // not yet implemented\n\n\t} );\n\n\t/**\n\t *\n\t * A Track that interpolates Strings\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction StringKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tStringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: StringKeyframeTrack,\n\n\t\tValueTypeName: 'string',\n\t\tValueBufferType: Array,\n\n\t\tDefaultInterpolation: InterpolateDiscrete,\n\n\t\tInterpolantFactoryMethodLinear: undefined,\n\n\t\tInterpolantFactoryMethodSmooth: undefined\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of vectored keyframe values.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction VectorKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrack.call( this, name, times, values, interpolation );\n\n\t}\n\n\tVectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {\n\n\t\tconstructor: VectorKeyframeTrack,\n\n\t\tValueTypeName: 'vector'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t} );\n\n\t/**\n\t *\n\t * Reusable set of Tracks that represent an animation.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t */\n\n\tfunction AnimationClip( name, duration, tracks ) {\n\n\t\tthis.name = name;\n\t\tthis.tracks = tracks;\n\t\tthis.duration = ( duration !== undefined ) ? duration : - 1;\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\t// this means it should figure out its duration by scanning the tracks\n\t\tif ( this.duration < 0 ) {\n\n\t\t\tthis.resetDuration();\n\n\t\t}\n\n\t}\n\n\tfunction getTrackTypeForValueTypeName( typeName ) {\n\n\t\tswitch ( typeName.toLowerCase() ) {\n\n\t\t\tcase 'scalar':\n\t\t\tcase 'double':\n\t\t\tcase 'float':\n\t\t\tcase 'number':\n\t\t\tcase 'integer':\n\n\t\t\t\treturn NumberKeyframeTrack;\n\n\t\t\tcase 'vector':\n\t\t\tcase 'vector2':\n\t\t\tcase 'vector3':\n\t\t\tcase 'vector4':\n\n\t\t\t\treturn VectorKeyframeTrack;\n\n\t\t\tcase 'color':\n\n\t\t\t\treturn ColorKeyframeTrack;\n\n\t\t\tcase 'quaternion':\n\n\t\t\t\treturn QuaternionKeyframeTrack;\n\n\t\t\tcase 'bool':\n\t\t\tcase 'boolean':\n\n\t\t\t\treturn BooleanKeyframeTrack;\n\n\t\t\tcase 'string':\n\n\t\t\t\treturn StringKeyframeTrack;\n\n\t\t}\n\n\t\tthrow new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );\n\n\t}\n\n\tfunction parseKeyframeTrack( json ) {\n\n\t\tif ( json.type === undefined ) {\n\n\t\t\tthrow new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );\n\n\t\t}\n\n\t\tvar trackType = getTrackTypeForValueTypeName( json.type );\n\n\t\tif ( json.times === undefined ) {\n\n\t\t\tvar times = [], values = [];\n\n\t\t\tAnimationUtils.flattenJSON( json.keys, times, values, 'value' );\n\n\t\t\tjson.times = times;\n\t\t\tjson.values = values;\n\n\t\t}\n\n\t\t// derived classes can define a static parse method\n\t\tif ( trackType.parse !== undefined ) {\n\n\t\t\treturn trackType.parse( json );\n\n\t\t} else {\n\n\t\t\t// by default, we assume a constructor compatible with the base\n\t\t\treturn new trackType( json.name, json.times, json.values, json.interpolation );\n\n\t\t}\n\n\t}\n\n\tObject.assign( AnimationClip, {\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar tracks = [],\n\t\t\t\tjsonTracks = json.tracks,\n\t\t\t\tframeTime = 1.0 / ( json.fps || 1.0 );\n\n\t\t\tfor ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {\n\n\t\t\t\ttracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) );\n\n\t\t\t}\n\n\t\t\treturn new AnimationClip( json.name, json.duration, tracks );\n\n\t\t},\n\n\t\ttoJSON: function ( clip ) {\n\n\t\t\tvar tracks = [],\n\t\t\t\tclipTracks = clip.tracks;\n\n\t\t\tvar json = {\n\n\t\t\t\t'name': clip.name,\n\t\t\t\t'duration': clip.duration,\n\t\t\t\t'tracks': tracks,\n\t\t\t\t'uuid': clip.uuid\n\n\t\t\t};\n\n\t\t\tfor ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {\n\n\t\t\t\ttracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );\n\n\t\t\t}\n\n\t\t\treturn json;\n\n\t\t},\n\n\t\tCreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {\n\n\t\t\tvar numMorphTargets = morphTargetSequence.length;\n\t\t\tvar tracks = [];\n\n\t\t\tfor ( var i = 0; i < numMorphTargets; i ++ ) {\n\n\t\t\t\tvar times = [];\n\t\t\t\tvar values = [];\n\n\t\t\t\ttimes.push(\n\t\t\t\t\t( i + numMorphTargets - 1 ) % numMorphTargets,\n\t\t\t\t\ti,\n\t\t\t\t\t( i + 1 ) % numMorphTargets );\n\n\t\t\t\tvalues.push( 0, 1, 0 );\n\n\t\t\t\tvar order = AnimationUtils.getKeyframeOrder( times );\n\t\t\t\ttimes = AnimationUtils.sortedArray( times, 1, order );\n\t\t\t\tvalues = AnimationUtils.sortedArray( values, 1, order );\n\n\t\t\t\t// if there is a key at the first frame, duplicate it as the\n\t\t\t\t// last frame as well for perfect loop.\n\t\t\t\tif ( ! noLoop && times[ 0 ] === 0 ) {\n\n\t\t\t\t\ttimes.push( numMorphTargets );\n\t\t\t\t\tvalues.push( values[ 0 ] );\n\n\t\t\t\t}\n\n\t\t\t\ttracks.push(\n\t\t\t\t\tnew NumberKeyframeTrack(\n\t\t\t\t\t\t'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',\n\t\t\t\t\t\ttimes, values\n\t\t\t\t\t).scale( 1.0 / fps ) );\n\n\t\t\t}\n\n\t\t\treturn new AnimationClip( name, - 1, tracks );\n\n\t\t},\n\n\t\tfindByName: function ( objectOrClipArray, name ) {\n\n\t\t\tvar clipArray = objectOrClipArray;\n\n\t\t\tif ( ! Array.isArray( objectOrClipArray ) ) {\n\n\t\t\t\tvar o = objectOrClipArray;\n\t\t\t\tclipArray = o.geometry && o.geometry.animations || o.animations;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < clipArray.length; i ++ ) {\n\n\t\t\t\tif ( clipArray[ i ].name === name ) {\n\n\t\t\t\t\treturn clipArray[ i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t},\n\n\t\tCreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {\n\n\t\t\tvar animationToMorphTargets = {};\n\n\t\t\t// tested with https://regex101.com/ on trick sequences\n\t\t\t// such flamingo_flyA_003, flamingo_run1_003, crdeath0059\n\t\t\tvar pattern = /^([\\w-]*?)([\\d]+)$/;\n\n\t\t\t// sort morph target names into animation groups based\n\t\t\t// patterns like Walk_001, Walk_002, Run_001, Run_002\n\t\t\tfor ( var i = 0, il = morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\tvar morphTarget = morphTargets[ i ];\n\t\t\t\tvar parts = morphTarget.name.match( pattern );\n\n\t\t\t\tif ( parts && parts.length > 1 ) {\n\n\t\t\t\t\tvar name = parts[ 1 ];\n\n\t\t\t\t\tvar animationMorphTargets = animationToMorphTargets[ name ];\n\t\t\t\t\tif ( ! animationMorphTargets ) {\n\n\t\t\t\t\t\tanimationToMorphTargets[ name ] = animationMorphTargets = [];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tanimationMorphTargets.push( morphTarget );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar clips = [];\n\n\t\t\tfor ( var name in animationToMorphTargets ) {\n\n\t\t\t\tclips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );\n\n\t\t\t}\n\n\t\t\treturn clips;\n\n\t\t},\n\n\t\t// parse the animation.hierarchy format\n\t\tparseAnimation: function ( animation, bones ) {\n\n\t\t\tif ( ! animation ) {\n\n\t\t\t\tconsole.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {\n\n\t\t\t\t// only return track if there are actually keys.\n\t\t\t\tif ( animationKeys.length !== 0 ) {\n\n\t\t\t\t\tvar times = [];\n\t\t\t\t\tvar values = [];\n\n\t\t\t\t\tAnimationUtils.flattenJSON( animationKeys, times, values, propertyName );\n\n\t\t\t\t\t// empty keys are filtered out, so check again\n\t\t\t\t\tif ( times.length !== 0 ) {\n\n\t\t\t\t\t\tdestTracks.push( new trackType( trackName, times, values ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t\tvar tracks = [];\n\n\t\t\tvar clipName = animation.name || 'default';\n\t\t\t// automatic length determination in AnimationClip.\n\t\t\tvar duration = animation.length || - 1;\n\t\t\tvar fps = animation.fps || 30;\n\n\t\t\tvar hierarchyTracks = animation.hierarchy || [];\n\n\t\t\tfor ( var h = 0; h < hierarchyTracks.length; h ++ ) {\n\n\t\t\t\tvar animationKeys = hierarchyTracks[ h ].keys;\n\n\t\t\t\t// skip empty tracks\n\t\t\t\tif ( ! animationKeys || animationKeys.length === 0 ) continue;\n\n\t\t\t\t// process morph targets\n\t\t\t\tif ( animationKeys[ 0 ].morphTargets ) {\n\n\t\t\t\t\t// figure out all morph targets used in this track\n\t\t\t\t\tvar morphTargetNames = {};\n\n\t\t\t\t\tfor ( var k = 0; k < animationKeys.length; k ++ ) {\n\n\t\t\t\t\t\tif ( animationKeys[ k ].morphTargets ) {\n\n\t\t\t\t\t\t\tfor ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {\n\n\t\t\t\t\t\t\t\tmorphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// create a track for each morph target with all zero\n\t\t\t\t\t// morphTargetInfluences except for the keys in which\n\t\t\t\t\t// the morphTarget is named.\n\t\t\t\t\tfor ( var morphTargetName in morphTargetNames ) {\n\n\t\t\t\t\t\tvar times = [];\n\t\t\t\t\t\tvar values = [];\n\n\t\t\t\t\t\tfor ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {\n\n\t\t\t\t\t\t\tvar animationKey = animationKeys[ k ];\n\n\t\t\t\t\t\t\ttimes.push( animationKey.time );\n\t\t\t\t\t\t\tvalues.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tduration = morphTargetNames.length * ( fps || 1.0 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// ...assume skeletal animation\n\n\t\t\t\t\tvar boneName = '.bones[' + bones[ h ].name + ']';\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\tVectorKeyframeTrack, boneName + '.position',\n\t\t\t\t\t\tanimationKeys, 'pos', tracks );\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\tQuaternionKeyframeTrack, boneName + '.quaternion',\n\t\t\t\t\t\tanimationKeys, 'rot', tracks );\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\tVectorKeyframeTrack, boneName + '.scale',\n\t\t\t\t\t\tanimationKeys, 'scl', tracks );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( tracks.length === 0 ) {\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar clip = new AnimationClip( clipName, duration, tracks );\n\n\t\t\treturn clip;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( AnimationClip.prototype, {\n\n\t\tresetDuration: function () {\n\n\t\t\tvar tracks = this.tracks, duration = 0;\n\n\t\t\tfor ( var i = 0, n = tracks.length; i !== n; ++ i ) {\n\n\t\t\t\tvar track = this.tracks[ i ];\n\n\t\t\t\tduration = Math.max( duration, track.times[ track.times.length - 1 ] );\n\n\t\t\t}\n\n\t\t\tthis.duration = duration;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttrim: function () {\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tthis.tracks[ i ].trim( 0, this.duration );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tvalidate: function () {\n\n\t\t\tvar valid = true;\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tvalid = valid && this.tracks[ i ].validate();\n\n\t\t\t}\n\n\t\t\treturn valid;\n\n\t\t},\n\n\t\toptimize: function () {\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tthis.tracks[ i ].optimize();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction MaterialLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\t\tthis.textures = {};\n\n\t}\n\n\tObject.assign( MaterialLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tonLoad( scope.parse( JSON.parse( text ) ) );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetTextures: function ( value ) {\n\n\t\t\tthis.textures = value;\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar textures = this.textures;\n\n\t\t\tfunction getTexture( name ) {\n\n\t\t\t\tif ( textures[ name ] === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.MaterialLoader: Undefined texture', name );\n\n\t\t\t\t}\n\n\t\t\t\treturn textures[ name ];\n\n\t\t\t}\n\n\t\t\tvar material = new Materials[ json.type ]();\n\n\t\t\tif ( json.uuid !== undefined ) material.uuid = json.uuid;\n\t\t\tif ( json.name !== undefined ) material.name = json.name;\n\t\t\tif ( json.color !== undefined ) material.color.setHex( json.color );\n\t\t\tif ( json.roughness !== undefined ) material.roughness = json.roughness;\n\t\t\tif ( json.metalness !== undefined ) material.metalness = json.metalness;\n\t\t\tif ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );\n\t\t\tif ( json.specular !== undefined ) material.specular.setHex( json.specular );\n\t\t\tif ( json.shininess !== undefined ) material.shininess = json.shininess;\n\t\t\tif ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;\n\t\t\tif ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;\n\t\t\tif ( json.uniforms !== undefined ) material.uniforms = json.uniforms;\n\t\t\tif ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;\n\t\t\tif ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;\n\t\t\tif ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;\n\t\t\tif ( json.fog !== undefined ) material.fog = json.fog;\n\t\t\tif ( json.flatShading !== undefined ) material.flatShading = json.flatShading;\n\t\t\tif ( json.blending !== undefined ) material.blending = json.blending;\n\t\t\tif ( json.side !== undefined ) material.side = json.side;\n\t\t\tif ( json.opacity !== undefined ) material.opacity = json.opacity;\n\t\t\tif ( json.transparent !== undefined ) material.transparent = json.transparent;\n\t\t\tif ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;\n\t\t\tif ( json.depthTest !== undefined ) material.depthTest = json.depthTest;\n\t\t\tif ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;\n\t\t\tif ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;\n\t\t\tif ( json.wireframe !== undefined ) material.wireframe = json.wireframe;\n\t\t\tif ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;\n\t\t\tif ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;\n\t\t\tif ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;\n\n\t\t\tif ( json.rotation !== undefined ) material.rotation = json.rotation;\n\n\t\t\tif ( json.linewidth !== 1 ) material.linewidth = json.linewidth;\n\t\t\tif ( json.dashSize !== undefined ) material.dashSize = json.dashSize;\n\t\t\tif ( json.gapSize !== undefined ) material.gapSize = json.gapSize;\n\t\t\tif ( json.scale !== undefined ) material.scale = json.scale;\n\n\t\t\tif ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset;\n\t\t\tif ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor;\n\t\t\tif ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits;\n\n\t\t\tif ( json.skinning !== undefined ) material.skinning = json.skinning;\n\t\t\tif ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;\n\t\t\tif ( json.dithering !== undefined ) material.dithering = json.dithering;\n\n\t\t\tif ( json.visible !== undefined ) material.visible = json.visible;\n\t\t\tif ( json.userData !== undefined ) material.userData = json.userData;\n\n\t\t\t// Deprecated\n\n\t\t\tif ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading\n\n\t\t\t// for PointsMaterial\n\n\t\t\tif ( json.size !== undefined ) material.size = json.size;\n\t\t\tif ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;\n\n\t\t\t// maps\n\n\t\t\tif ( json.map !== undefined ) material.map = getTexture( json.map );\n\n\t\t\tif ( json.alphaMap !== undefined ) {\n\n\t\t\t\tmaterial.alphaMap = getTexture( json.alphaMap );\n\t\t\t\tmaterial.transparent = true;\n\n\t\t\t}\n\n\t\t\tif ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );\n\t\t\tif ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;\n\n\t\t\tif ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );\n\t\t\tif ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType;\n\t\t\tif ( json.normalScale !== undefined ) {\n\n\t\t\t\tvar normalScale = json.normalScale;\n\n\t\t\t\tif ( Array.isArray( normalScale ) === false ) {\n\n\t\t\t\t\t// Blender exporter used to export a scalar. See #7459\n\n\t\t\t\t\tnormalScale = [ normalScale, normalScale ];\n\n\t\t\t\t}\n\n\t\t\t\tmaterial.normalScale = new Vector2().fromArray( normalScale );\n\n\t\t\t}\n\n\t\t\tif ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );\n\t\t\tif ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;\n\t\t\tif ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;\n\n\t\t\tif ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );\n\t\t\tif ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );\n\n\t\t\tif ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );\n\t\t\tif ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;\n\n\t\t\tif ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );\n\n\t\t\tif ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );\n\n\t\t\tif ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;\n\n\t\t\tif ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );\n\t\t\tif ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;\n\n\t\t\tif ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );\n\t\t\tif ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;\n\n\t\t\tif ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );\n\n\t\t\treturn material;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BufferGeometryLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( BufferGeometryLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tonLoad( scope.parse( JSON.parse( text ) ) );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar geometry = new BufferGeometry();\n\n\t\t\tvar index = json.data.index;\n\n\t\t\tif ( index !== undefined ) {\n\n\t\t\t\tvar typedArray = new TYPED_ARRAYS[ index.type ]( index.array );\n\t\t\t\tgeometry.setIndex( new BufferAttribute( typedArray, 1 ) );\n\n\t\t\t}\n\n\t\t\tvar attributes = json.data.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ key ];\n\t\t\t\tvar typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );\n\n\t\t\t\tgeometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );\n\n\t\t\t}\n\n\t\t\tvar groups = json.data.groups || json.data.drawcalls || json.data.offsets;\n\n\t\t\tif ( groups !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, n = groups.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar group = groups[ i ];\n\n\t\t\t\t\tgeometry.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar boundingSphere = json.data.boundingSphere;\n\n\t\t\tif ( boundingSphere !== undefined ) {\n\n\t\t\t\tvar center = new Vector3();\n\n\t\t\t\tif ( boundingSphere.center !== undefined ) {\n\n\t\t\t\t\tcenter.fromArray( boundingSphere.center );\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.boundingSphere = new Sphere( center, boundingSphere.radius );\n\n\t\t\t}\n\n\t\t\treturn geometry;\n\n\t\t}\n\n\t} );\n\n\tvar TYPED_ARRAYS = {\n\t\tInt8Array: Int8Array,\n\t\tUint8Array: Uint8Array,\n\t\t// Workaround for IE11 pre KB2929437. See #11440\n\t\tUint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,\n\t\tInt16Array: Int16Array,\n\t\tUint16Array: Uint16Array,\n\t\tInt32Array: Int32Array,\n\t\tUint32Array: Uint32Array,\n\t\tFloat32Array: Float32Array,\n\t\tFloat64Array: Float64Array\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Loader() {}\n\n\tLoader.Handlers = {\n\n\t\thandlers: [],\n\n\t\tadd: function ( regex, loader ) {\n\n\t\t\tthis.handlers.push( regex, loader );\n\n\t\t},\n\n\t\tget: function ( file ) {\n\n\t\t\tvar handlers = this.handlers;\n\n\t\t\tfor ( var i = 0, l = handlers.length; i < l; i += 2 ) {\n\n\t\t\t\tvar regex = handlers[ i ];\n\t\t\t\tvar loader = handlers[ i + 1 ];\n\n\t\t\t\tif ( regex.test( file ) ) {\n\n\t\t\t\t\treturn loader;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t}\n\n\t};\n\n\tObject.assign( Loader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tonLoadStart: function () {},\n\n\t\tonLoadProgress: function () {},\n\n\t\tonLoadComplete: function () {},\n\n\t\tinitMaterials: function ( materials, texturePath, crossOrigin ) {\n\n\t\t\tvar array = [];\n\n\t\t\tfor ( var i = 0; i < materials.length; ++ i ) {\n\n\t\t\t\tarray[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );\n\n\t\t\t}\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tcreateMaterial: ( function () {\n\n\t\t\tvar BlendingMode = {\n\t\t\t\tNoBlending: NoBlending,\n\t\t\t\tNormalBlending: NormalBlending,\n\t\t\t\tAdditiveBlending: AdditiveBlending,\n\t\t\t\tSubtractiveBlending: SubtractiveBlending,\n\t\t\t\tMultiplyBlending: MultiplyBlending,\n\t\t\t\tCustomBlending: CustomBlending\n\t\t\t};\n\n\t\t\tvar color = new Color();\n\t\t\tvar textureLoader = new TextureLoader();\n\t\t\tvar materialLoader = new MaterialLoader();\n\n\t\t\treturn function createMaterial( m, texturePath, crossOrigin ) {\n\n\t\t\t\t// convert from old material format\n\n\t\t\t\tvar textures = {};\n\n\t\t\t\tfunction loadTexture( path, repeat, offset, wrap, anisotropy ) {\n\n\t\t\t\t\tvar fullPath = texturePath + path;\n\t\t\t\t\tvar loader = Loader.Handlers.get( fullPath );\n\n\t\t\t\t\tvar texture;\n\n\t\t\t\t\tif ( loader !== null ) {\n\n\t\t\t\t\t\ttexture = loader.load( fullPath );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttextureLoader.setCrossOrigin( crossOrigin );\n\t\t\t\t\t\ttexture = textureLoader.load( fullPath );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( repeat !== undefined ) {\n\n\t\t\t\t\t\ttexture.repeat.fromArray( repeat );\n\n\t\t\t\t\t\tif ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;\n\t\t\t\t\t\tif ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\t\t\ttexture.offset.fromArray( offset );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( wrap !== undefined ) {\n\n\t\t\t\t\t\tif ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;\n\t\t\t\t\t\tif ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;\n\n\t\t\t\t\t\tif ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;\n\t\t\t\t\t\tif ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( anisotropy !== undefined ) {\n\n\t\t\t\t\t\ttexture.anisotropy = anisotropy;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar uuid = _Math.generateUUID();\n\n\t\t\t\t\ttextures[ uuid ] = texture;\n\n\t\t\t\t\treturn uuid;\n\n\t\t\t\t}\n\n\t\t\t\t//\n\n\t\t\t\tvar json = {\n\t\t\t\t\tuuid: _Math.generateUUID(),\n\t\t\t\t\ttype: 'MeshLambertMaterial'\n\t\t\t\t};\n\n\t\t\t\tfor ( var name in m ) {\n\n\t\t\t\t\tvar value = m[ name ];\n\n\t\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\t\tcase 'DbgColor':\n\t\t\t\t\t\tcase 'DbgIndex':\n\t\t\t\t\t\tcase 'opticalDensity':\n\t\t\t\t\t\tcase 'illumination':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'DbgName':\n\t\t\t\t\t\t\tjson.name = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'blending':\n\t\t\t\t\t\t\tjson.blending = BlendingMode[ value ];\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorAmbient':\n\t\t\t\t\t\tcase 'mapAmbient':\n\t\t\t\t\t\t\tconsole.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorDiffuse':\n\t\t\t\t\t\t\tjson.color = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorSpecular':\n\t\t\t\t\t\t\tjson.specular = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorEmissive':\n\t\t\t\t\t\t\tjson.emissive = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'specularCoef':\n\t\t\t\t\t\t\tjson.shininess = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'shading':\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapDiffuse':\n\t\t\t\t\t\t\tjson.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapDiffuseRepeat':\n\t\t\t\t\t\tcase 'mapDiffuseOffset':\n\t\t\t\t\t\tcase 'mapDiffuseWrap':\n\t\t\t\t\t\tcase 'mapDiffuseAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapEmissive':\n\t\t\t\t\t\t\tjson.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapEmissiveRepeat':\n\t\t\t\t\t\tcase 'mapEmissiveOffset':\n\t\t\t\t\t\tcase 'mapEmissiveWrap':\n\t\t\t\t\t\tcase 'mapEmissiveAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapLight':\n\t\t\t\t\t\t\tjson.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapLightRepeat':\n\t\t\t\t\t\tcase 'mapLightOffset':\n\t\t\t\t\t\tcase 'mapLightWrap':\n\t\t\t\t\t\tcase 'mapLightAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAO':\n\t\t\t\t\t\t\tjson.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAORepeat':\n\t\t\t\t\t\tcase 'mapAOOffset':\n\t\t\t\t\t\tcase 'mapAOWrap':\n\t\t\t\t\t\tcase 'mapAOAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBump':\n\t\t\t\t\t\t\tjson.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBumpScale':\n\t\t\t\t\t\t\tjson.bumpScale = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBumpRepeat':\n\t\t\t\t\t\tcase 'mapBumpOffset':\n\t\t\t\t\t\tcase 'mapBumpWrap':\n\t\t\t\t\t\tcase 'mapBumpAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormal':\n\t\t\t\t\t\t\tjson.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormalFactor':\n\t\t\t\t\t\t\tjson.normalScale = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormalRepeat':\n\t\t\t\t\t\tcase 'mapNormalOffset':\n\t\t\t\t\t\tcase 'mapNormalWrap':\n\t\t\t\t\t\tcase 'mapNormalAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapSpecular':\n\t\t\t\t\t\t\tjson.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapSpecularRepeat':\n\t\t\t\t\t\tcase 'mapSpecularOffset':\n\t\t\t\t\t\tcase 'mapSpecularWrap':\n\t\t\t\t\t\tcase 'mapSpecularAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapMetalness':\n\t\t\t\t\t\t\tjson.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapMetalnessRepeat':\n\t\t\t\t\t\tcase 'mapMetalnessOffset':\n\t\t\t\t\t\tcase 'mapMetalnessWrap':\n\t\t\t\t\t\tcase 'mapMetalnessAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapRoughness':\n\t\t\t\t\t\t\tjson.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapRoughnessRepeat':\n\t\t\t\t\t\tcase 'mapRoughnessOffset':\n\t\t\t\t\t\tcase 'mapRoughnessWrap':\n\t\t\t\t\t\tcase 'mapRoughnessAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAlpha':\n\t\t\t\t\t\t\tjson.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAlphaRepeat':\n\t\t\t\t\t\tcase 'mapAlphaOffset':\n\t\t\t\t\t\tcase 'mapAlphaWrap':\n\t\t\t\t\t\tcase 'mapAlphaAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'flipSided':\n\t\t\t\t\t\t\tjson.side = BackSide;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'doubleSided':\n\t\t\t\t\t\t\tjson.side = DoubleSide;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'transparency':\n\t\t\t\t\t\t\tconsole.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );\n\t\t\t\t\t\t\tjson.opacity = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'depthTest':\n\t\t\t\t\t\tcase 'depthWrite':\n\t\t\t\t\t\tcase 'colorWrite':\n\t\t\t\t\t\tcase 'opacity':\n\t\t\t\t\t\tcase 'reflectivity':\n\t\t\t\t\t\tcase 'transparent':\n\t\t\t\t\t\tcase 'visible':\n\t\t\t\t\t\tcase 'wireframe':\n\t\t\t\t\t\t\tjson[ name ] = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'vertexColors':\n\t\t\t\t\t\t\tif ( value === true ) json.vertexColors = VertexColors;\n\t\t\t\t\t\t\tif ( value === 'face' ) json.vertexColors = FaceColors;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\tconsole.error( 'THREE.Loader.createMaterial: Unsupported', name, value );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.type === 'MeshBasicMaterial' ) delete json.emissive;\n\t\t\t\tif ( json.type !== 'MeshPhongMaterial' ) delete json.specular;\n\n\t\t\t\tif ( json.opacity < 1 ) json.transparent = true;\n\n\t\t\t\tmaterialLoader.setTextures( textures );\n\n\t\t\t\treturn materialLoader.parse( json );\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * @author Don McCurdy / https://www.donmccurdy.com\n\t */\n\n\tvar LoaderUtils = {\n\n\t\tdecodeText: function ( array ) {\n\n\t\t\tif ( typeof TextDecoder !== 'undefined' ) {\n\n\t\t\t\treturn new TextDecoder().decode( array );\n\n\t\t\t}\n\n\t\t\t// Avoid the String.fromCharCode.apply(null, array) shortcut, which\n\t\t\t// throws a \"maximum call stack size exceeded\" error for large arrays.\n\n\t\t\tvar s = '';\n\n\t\t\tfor ( var i = 0, il = array.length; i < il; i ++ ) {\n\n\t\t\t\t// Implicitly assumes little-endian.\n\t\t\t\ts += String.fromCharCode( array[ i ] );\n\n\t\t\t}\n\n\t\t\t// Merges multi-byte utf-8 characters.\n\t\t\treturn decodeURIComponent( escape( s ) );\n\n\t\t},\n\n\t\textractUrlBase: function ( url ) {\n\n\t\t\tvar index = url.lastIndexOf( '/' );\n\n\t\t\tif ( index === - 1 ) return './';\n\n\t\t\treturn url.substr( 0, index + 1 );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction JSONLoader( manager ) {\n\n\t\tif ( typeof manager === 'boolean' ) {\n\n\t\t\tconsole.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );\n\t\t\tmanager = undefined;\n\n\t\t}\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\tthis.withCredentials = false;\n\n\t}\n\n\tObject.assign( JSONLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar texturePath = this.texturePath && ( typeof this.texturePath === 'string' ) ? this.texturePath : LoaderUtils.extractUrlBase( url );\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setWithCredentials( this.withCredentials );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json = JSON.parse( text );\n\t\t\t\tvar metadata = json.metadata;\n\n\t\t\t\tif ( metadata !== undefined ) {\n\n\t\t\t\t\tvar type = metadata.type;\n\n\t\t\t\t\tif ( type !== undefined ) {\n\n\t\t\t\t\t\tif ( type.toLowerCase() === 'object' ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar object = scope.parse( json, texturePath );\n\t\t\t\tonLoad( object.geometry, object.materials );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetTexturePath: function ( value ) {\n\n\t\t\tthis.texturePath = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tparse: ( function () {\n\n\t\t\tfunction parseModel( json, geometry ) {\n\n\t\t\t\tfunction isBitSet( value, position ) {\n\n\t\t\t\t\treturn value & ( 1 << position );\n\n\t\t\t\t}\n\n\t\t\t\tvar i, j, fi,\n\n\t\t\t\t\toffset, zLength,\n\n\t\t\t\t\tcolorIndex, normalIndex, uvIndex, materialIndex,\n\n\t\t\t\t\ttype,\n\t\t\t\t\tisQuad,\n\t\t\t\t\thasMaterial,\n\t\t\t\t\thasFaceVertexUv,\n\t\t\t\t\thasFaceNormal, hasFaceVertexNormal,\n\t\t\t\t\thasFaceColor, hasFaceVertexColor,\n\n\t\t\t\t\tvertex, face, faceA, faceB, hex, normal,\n\n\t\t\t\t\tuvLayer, uv, u, v,\n\n\t\t\t\t\tfaces = json.faces,\n\t\t\t\t\tvertices = json.vertices,\n\t\t\t\t\tnormals = json.normals,\n\t\t\t\t\tcolors = json.colors,\n\n\t\t\t\t\tscale = json.scale,\n\n\t\t\t\t\tnUvLayers = 0;\n\n\n\t\t\t\tif ( json.uvs !== undefined ) {\n\n\t\t\t\t\t// disregard empty arrays\n\n\t\t\t\t\tfor ( i = 0; i < json.uvs.length; i ++ ) {\n\n\t\t\t\t\t\tif ( json.uvs[ i ].length ) nUvLayers ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\tgeometry.faceVertexUvs[ i ] = [];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\toffset = 0;\n\t\t\t\tzLength = vertices.length;\n\n\t\t\t\twhile ( offset < zLength ) {\n\n\t\t\t\t\tvertex = new Vector3();\n\n\t\t\t\t\tvertex.x = vertices[ offset ++ ] * scale;\n\t\t\t\t\tvertex.y = vertices[ offset ++ ] * scale;\n\t\t\t\t\tvertex.z = vertices[ offset ++ ] * scale;\n\n\t\t\t\t\tgeometry.vertices.push( vertex );\n\n\t\t\t\t}\n\n\t\t\t\toffset = 0;\n\t\t\t\tzLength = faces.length;\n\n\t\t\t\twhile ( offset < zLength ) {\n\n\t\t\t\t\ttype = faces[ offset ++ ];\n\n\t\t\t\t\tisQuad = isBitSet( type, 0 );\n\t\t\t\t\thasMaterial = isBitSet( type, 1 );\n\t\t\t\t\thasFaceVertexUv = isBitSet( type, 3 );\n\t\t\t\t\thasFaceNormal = isBitSet( type, 4 );\n\t\t\t\t\thasFaceVertexNormal = isBitSet( type, 5 );\n\t\t\t\t\thasFaceColor = isBitSet( type, 6 );\n\t\t\t\t\thasFaceVertexColor = isBitSet( type, 7 );\n\n\t\t\t\t\t// console.log(\"type\", type, \"bits\", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);\n\n\t\t\t\t\tif ( isQuad ) {\n\n\t\t\t\t\t\tfaceA = new Face3();\n\t\t\t\t\t\tfaceA.a = faces[ offset ];\n\t\t\t\t\t\tfaceA.b = faces[ offset + 1 ];\n\t\t\t\t\t\tfaceA.c = faces[ offset + 3 ];\n\n\t\t\t\t\t\tfaceB = new Face3();\n\t\t\t\t\t\tfaceB.a = faces[ offset + 1 ];\n\t\t\t\t\t\tfaceB.b = faces[ offset + 2 ];\n\t\t\t\t\t\tfaceB.c = faces[ offset + 3 ];\n\n\t\t\t\t\t\toffset += 4;\n\n\t\t\t\t\t\tif ( hasMaterial ) {\n\n\t\t\t\t\t\t\tmaterialIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tfaceA.materialIndex = materialIndex;\n\t\t\t\t\t\t\tfaceB.materialIndex = materialIndex;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// to get face <=> uv index correspondence\n\n\t\t\t\t\t\tfi = geometry.faces.length;\n\n\t\t\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\t\t\tuvLayer = json.uvs[ i ];\n\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ] = [];\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi + 1 ] = [];\n\n\t\t\t\t\t\t\t\tfor ( j = 0; j < 4; j ++ ) {\n\n\t\t\t\t\t\t\t\t\tuvIndex = faces[ offset ++ ];\n\n\t\t\t\t\t\t\t\t\tu = uvLayer[ uvIndex * 2 ];\n\t\t\t\t\t\t\t\t\tv = uvLayer[ uvIndex * 2 + 1 ];\n\n\t\t\t\t\t\t\t\t\tuv = new Vector2( u, v );\n\n\t\t\t\t\t\t\t\t\tif ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );\n\t\t\t\t\t\t\t\t\tif ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\tfaceA.normal.set(\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tfaceB.normal.copy( faceA.normal );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 4; i ++ ) {\n\n\t\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\t\tnormal = new Vector3(\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t\t);\n\n\n\t\t\t\t\t\t\t\tif ( i !== 2 ) faceA.vertexNormals.push( normal );\n\t\t\t\t\t\t\t\tif ( i !== 0 ) faceB.vertexNormals.push( normal );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\thex = colors[ colorIndex ];\n\n\t\t\t\t\t\t\tfaceA.color.setHex( hex );\n\t\t\t\t\t\t\tfaceB.color.setHex( hex );\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 4; i ++ ) {\n\n\t\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\t\thex = colors[ colorIndex ];\n\n\t\t\t\t\t\t\t\tif ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) );\n\t\t\t\t\t\t\t\tif ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.faces.push( faceA );\n\t\t\t\t\t\tgeometry.faces.push( faceB );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tface = new Face3();\n\t\t\t\t\t\tface.a = faces[ offset ++ ];\n\t\t\t\t\t\tface.b = faces[ offset ++ ];\n\t\t\t\t\t\tface.c = faces[ offset ++ ];\n\n\t\t\t\t\t\tif ( hasMaterial ) {\n\n\t\t\t\t\t\t\tmaterialIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tface.materialIndex = materialIndex;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// to get face <=> uv index correspondence\n\n\t\t\t\t\t\tfi = geometry.faces.length;\n\n\t\t\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\t\t\tuvLayer = json.uvs[ i ];\n\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ] = [];\n\n\t\t\t\t\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t\t\t\tuvIndex = faces[ offset ++ ];\n\n\t\t\t\t\t\t\t\t\tu = uvLayer[ uvIndex * 2 ];\n\t\t\t\t\t\t\t\t\tv = uvLayer[ uvIndex * 2 + 1 ];\n\n\t\t\t\t\t\t\t\t\tuv = new Vector2( u, v );\n\n\t\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ].push( uv );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\tface.normal.set(\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\t\tnormal = new Vector3(\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\t\tface.vertexNormals.push( normal );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tface.color.setHex( colors[ colorIndex ] );\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\t\tface.vertexColors.push( new Color( colors[ colorIndex ] ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.faces.push( face );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseSkin( json, geometry ) {\n\n\t\t\t\tvar influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;\n\n\t\t\t\tif ( json.skinWeights ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {\n\n\t\t\t\t\t\tvar x = json.skinWeights[ i ];\n\t\t\t\t\t\tvar y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;\n\t\t\t\t\t\tvar z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;\n\t\t\t\t\t\tvar w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;\n\n\t\t\t\t\t\tgeometry.skinWeights.push( new Vector4( x, y, z, w ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.skinIndices ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {\n\n\t\t\t\t\t\tvar a = json.skinIndices[ i ];\n\t\t\t\t\t\tvar b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;\n\t\t\t\t\t\tvar c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;\n\t\t\t\t\t\tvar d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;\n\n\t\t\t\t\t\tgeometry.skinIndices.push( new Vector4( a, b, c, d ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.bones = json.bones;\n\n\t\t\t\tif ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {\n\n\t\t\t\t\tconsole.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +\n\t\t\t\t\t\tgeometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseMorphing( json, geometry ) {\n\n\t\t\t\tvar scale = json.scale;\n\n\t\t\t\tif ( json.morphTargets !== undefined ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tgeometry.morphTargets[ i ] = {};\n\t\t\t\t\t\tgeometry.morphTargets[ i ].name = json.morphTargets[ i ].name;\n\t\t\t\t\t\tgeometry.morphTargets[ i ].vertices = [];\n\n\t\t\t\t\t\tvar dstVertices = geometry.morphTargets[ i ].vertices;\n\t\t\t\t\t\tvar srcVertices = json.morphTargets[ i ].vertices;\n\n\t\t\t\t\t\tfor ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {\n\n\t\t\t\t\t\t\tvar vertex = new Vector3();\n\t\t\t\t\t\t\tvertex.x = srcVertices[ v ] * scale;\n\t\t\t\t\t\t\tvertex.y = srcVertices[ v + 1 ] * scale;\n\t\t\t\t\t\t\tvertex.z = srcVertices[ v + 2 ] * scale;\n\n\t\t\t\t\t\t\tdstVertices.push( vertex );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.morphColors !== undefined && json.morphColors.length > 0 ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.JSONLoader: \"morphColors\" no longer supported. Using them as face colors.' );\n\n\t\t\t\t\tvar faces = geometry.faces;\n\t\t\t\t\tvar morphColors = json.morphColors[ 0 ].colors;\n\n\t\t\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tfaces[ i ].color.fromArray( morphColors, i * 3 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseAnimations( json, geometry ) {\n\n\t\t\t\tvar outputAnimations = [];\n\n\t\t\t\t// parse old style Bone/Hierarchy animations\n\t\t\t\tvar animations = [];\n\n\t\t\t\tif ( json.animation !== undefined ) {\n\n\t\t\t\t\tanimations.push( json.animation );\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.animations !== undefined ) {\n\n\t\t\t\t\tif ( json.animations.length ) {\n\n\t\t\t\t\t\tanimations = animations.concat( json.animations );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tanimations.push( json.animations );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var i = 0; i < animations.length; i ++ ) {\n\n\t\t\t\t\tvar clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones );\n\t\t\t\t\tif ( clip ) outputAnimations.push( clip );\n\n\t\t\t\t}\n\n\t\t\t\t// parse implicit morph animations\n\t\t\t\tif ( geometry.morphTargets ) {\n\n\t\t\t\t\t// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.\n\t\t\t\t\tvar morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );\n\t\t\t\t\toutputAnimations = outputAnimations.concat( morphAnimationClips );\n\n\t\t\t\t}\n\n\t\t\t\tif ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;\n\n\t\t\t}\n\n\t\t\treturn function parse( json, texturePath ) {\n\n\t\t\t\tif ( json.data !== undefined ) {\n\n\t\t\t\t\t// Geometry 4.0 spec\n\t\t\t\t\tjson = json.data;\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.scale !== undefined ) {\n\n\t\t\t\t\tjson.scale = 1.0 / json.scale;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tjson.scale = 1.0;\n\n\t\t\t\t}\n\n\t\t\t\tvar geometry = new Geometry();\n\n\t\t\t\tparseModel( json, geometry );\n\t\t\t\tparseSkin( json, geometry );\n\t\t\t\tparseMorphing( json, geometry );\n\t\t\t\tparseAnimations( json, geometry );\n\n\t\t\t\tgeometry.computeFaceNormals();\n\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t\tif ( json.materials === undefined || json.materials.length === 0 ) {\n\n\t\t\t\t\treturn { geometry: geometry };\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );\n\n\t\t\t\t\treturn { geometry: geometry, materials: materials };\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction ObjectLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\t\tthis.texturePath = '';\n\n\t}\n\n\tObject.assign( ObjectLoader.prototype, {\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( this.texturePath === '' ) {\n\n\t\t\t\tthis.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );\n\n\t\t\t}\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json = null;\n\n\t\t\t\ttry {\n\n\t\t\t\t\tjson = JSON.parse( text );\n\n\t\t\t\t} catch ( error ) {\n\n\t\t\t\t\tif ( onError !== undefined ) onError( error );\n\n\t\t\t\t\tconsole.error( 'THREE:ObjectLoader: Can\\'t parse ' + url + '.', error.message );\n\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tvar metadata = json.metadata;\n\n\t\t\t\tif ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {\n\n\t\t\t\t\tconsole.error( 'THREE.ObjectLoader: Can\\'t load ' + url + '. Use THREE.JSONLoader instead.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tscope.parse( json, onLoad );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetTexturePath: function ( value ) {\n\n\t\t\tthis.texturePath = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tparse: function ( json, onLoad ) {\n\n\t\t\tvar shapes = this.parseShape( json.shapes );\n\t\t\tvar geometries = this.parseGeometries( json.geometries, shapes );\n\n\t\t\tvar images = this.parseImages( json.images, function () {\n\n\t\t\t\tif ( onLoad !== undefined ) onLoad( object );\n\n\t\t\t} );\n\n\t\t\tvar textures = this.parseTextures( json.textures, images );\n\t\t\tvar materials = this.parseMaterials( json.materials, textures );\n\n\t\t\tvar object = this.parseObject( json.object, geometries, materials );\n\n\t\t\tif ( json.animations ) {\n\n\t\t\t\tobject.animations = this.parseAnimations( json.animations );\n\n\t\t\t}\n\n\t\t\tif ( json.images === undefined || json.images.length === 0 ) {\n\n\t\t\t\tif ( onLoad !== undefined ) onLoad( object );\n\n\t\t\t}\n\n\t\t\treturn object;\n\n\t\t},\n\n\t\tparseShape: function ( json ) {\n\n\t\t\tvar shapes = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar shape = new Shape().fromJSON( json[ i ] );\n\n\t\t\t\t\tshapes[ shape.uuid ] = shape;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn shapes;\n\n\t\t},\n\n\t\tparseGeometries: function ( json, shapes ) {\n\n\t\t\tvar geometries = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tvar geometryLoader = new JSONLoader();\n\t\t\t\tvar bufferGeometryLoader = new BufferGeometryLoader();\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar geometry;\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tswitch ( data.type ) {\n\n\t\t\t\t\t\tcase 'PlaneGeometry':\n\t\t\t\t\t\tcase 'PlaneBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.width,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'BoxGeometry':\n\t\t\t\t\t\tcase 'BoxBufferGeometry':\n\t\t\t\t\t\tcase 'CubeGeometry': // backwards compatible\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.width,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.depth,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.depthSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'CircleGeometry':\n\t\t\t\t\t\tcase 'CircleBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.segments,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'CylinderGeometry':\n\t\t\t\t\t\tcase 'CylinderBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radiusTop,\n\t\t\t\t\t\t\t\tdata.radiusBottom,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.openEnded,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'ConeGeometry':\n\t\t\t\t\t\tcase 'ConeBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.openEnded,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'SphereGeometry':\n\t\t\t\t\t\tcase 'SphereBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.phiStart,\n\t\t\t\t\t\t\t\tdata.phiLength,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'DodecahedronGeometry':\n\t\t\t\t\t\tcase 'DodecahedronBufferGeometry':\n\t\t\t\t\t\tcase 'IcosahedronGeometry':\n\t\t\t\t\t\tcase 'IcosahedronBufferGeometry':\n\t\t\t\t\t\tcase 'OctahedronGeometry':\n\t\t\t\t\t\tcase 'OctahedronBufferGeometry':\n\t\t\t\t\t\tcase 'TetrahedronGeometry':\n\t\t\t\t\t\tcase 'TetrahedronBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.detail\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'RingGeometry':\n\t\t\t\t\t\tcase 'RingBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.innerRadius,\n\t\t\t\t\t\t\t\tdata.outerRadius,\n\t\t\t\t\t\t\t\tdata.thetaSegments,\n\t\t\t\t\t\t\t\tdata.phiSegments,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'TorusGeometry':\n\t\t\t\t\t\tcase 'TorusBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.tube,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.tubularSegments,\n\t\t\t\t\t\t\t\tdata.arc\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'TorusKnotGeometry':\n\t\t\t\t\t\tcase 'TorusKnotBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.tube,\n\t\t\t\t\t\t\t\tdata.tubularSegments,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.p,\n\t\t\t\t\t\t\t\tdata.q\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'LatheGeometry':\n\t\t\t\t\t\tcase 'LatheBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.points,\n\t\t\t\t\t\t\t\tdata.segments,\n\t\t\t\t\t\t\t\tdata.phiStart,\n\t\t\t\t\t\t\t\tdata.phiLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'PolyhedronGeometry':\n\t\t\t\t\t\tcase 'PolyhedronBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.vertices,\n\t\t\t\t\t\t\t\tdata.indices,\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.details\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'ShapeGeometry':\n\t\t\t\t\t\tcase 'ShapeBufferGeometry':\n\n\t\t\t\t\t\t\tvar geometryShapes = [];\n\n\t\t\t\t\t\t\tfor ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tvar shape = shapes[ data.shapes[ j ] ];\n\n\t\t\t\t\t\t\t\tgeometryShapes.push( shape );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tgeometryShapes,\n\t\t\t\t\t\t\t\tdata.curveSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\n\t\t\t\t\t\tcase 'ExtrudeGeometry':\n\t\t\t\t\t\tcase 'ExtrudeBufferGeometry':\n\n\t\t\t\t\t\t\tvar geometryShapes = [];\n\n\t\t\t\t\t\t\tfor ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tvar shape = shapes[ data.shapes[ j ] ];\n\n\t\t\t\t\t\t\t\tgeometryShapes.push( shape );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tvar extrudePath = data.options.extrudePath;\n\n\t\t\t\t\t\t\tif ( extrudePath !== undefined ) {\n\n\t\t\t\t\t\t\t\tdata.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tgeometryShapes,\n\t\t\t\t\t\t\t\tdata.options\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'BufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = bufferGeometryLoader.parse( data );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'Geometry':\n\n\t\t\t\t\t\t\tgeometry = geometryLoader.parse( data, this.texturePath ).geometry;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Unsupported geometry type \"' + data.type + '\"' );\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tgeometry.uuid = data.uuid;\n\n\t\t\t\t\tif ( data.name !== undefined ) geometry.name = data.name;\n\t\t\t\t\tif ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData;\n\n\t\t\t\t\tgeometries[ data.uuid ] = geometry;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn geometries;\n\n\t\t},\n\n\t\tparseMaterials: function ( json, textures ) {\n\n\t\t\tvar materials = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tvar loader = new MaterialLoader();\n\t\t\t\tloader.setTextures( textures );\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tif ( data.type === 'MultiMaterial' ) {\n\n\t\t\t\t\t\t// Deprecated\n\n\t\t\t\t\t\tvar array = [];\n\n\t\t\t\t\t\tfor ( var j = 0; j < data.materials.length; j ++ ) {\n\n\t\t\t\t\t\t\tarray.push( loader.parse( data.materials[ j ] ) );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tmaterials[ data.uuid ] = array;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tmaterials[ data.uuid ] = loader.parse( data );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn materials;\n\n\t\t},\n\n\t\tparseAnimations: function ( json ) {\n\n\t\t\tvar animations = [];\n\n\t\t\tfor ( var i = 0; i < json.length; i ++ ) {\n\n\t\t\t\tvar data = json[ i ];\n\n\t\t\t\tvar clip = AnimationClip.parse( data );\n\n\t\t\t\tif ( data.uuid !== undefined ) clip.uuid = data.uuid;\n\n\t\t\t\tanimations.push( clip );\n\n\t\t\t}\n\n\t\t\treturn animations;\n\n\t\t},\n\n\t\tparseImages: function ( json, onLoad ) {\n\n\t\t\tvar scope = this;\n\t\t\tvar images = {};\n\n\t\t\tfunction loadImage( url ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\treturn loader.load( url, function () {\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, undefined, function () {\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t\tif ( json !== undefined && json.length > 0 ) {\n\n\t\t\t\tvar manager = new LoadingManager( onLoad );\n\n\t\t\t\tvar loader = new ImageLoader( manager );\n\t\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\t\t\tfor ( var i = 0, il = json.length; i < il; i ++ ) {\n\n\t\t\t\t\tvar image = json[ i ];\n\t\t\t\t\tvar url = image.url;\n\n\t\t\t\t\tif ( Array.isArray( url ) ) {\n\n\t\t\t\t\t\t// load array of images e.g CubeTexture\n\n\t\t\t\t\t\timages[ image.uuid ] = [];\n\n\t\t\t\t\t\tfor ( var j = 0, jl = url.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\tvar currentUrl = url[ j ];\n\n\t\t\t\t\t\t\tvar path = /^(\\/\\/)|([a-z]+:(\\/\\/)?)/i.test( currentUrl ) ? currentUrl : scope.texturePath + currentUrl;\n\n\t\t\t\t\t\t\timages[ image.uuid ].push( loadImage( path ) );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// load single image\n\n\t\t\t\t\t\tvar path = /^(\\/\\/)|([a-z]+:(\\/\\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;\n\n\t\t\t\t\t\timages[ image.uuid ] = loadImage( path );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn images;\n\n\t\t},\n\n\t\tparseTextures: function ( json, images ) {\n\n\t\t\tfunction parseConstant( value, type ) {\n\n\t\t\t\tif ( typeof value === 'number' ) return value;\n\n\t\t\t\tconsole.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );\n\n\t\t\t\treturn type[ value ];\n\n\t\t\t}\n\n\t\t\tvar textures = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tif ( data.image === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: No \"image\" specified for', data.uuid );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( images[ data.image ] === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined image', data.image );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar texture;\n\n\t\t\t\t\tif ( Array.isArray( images[ data.image ] ) ) {\n\n\t\t\t\t\t\ttexture = new CubeTexture( images[ data.image ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttexture = new Texture( images[ data.image ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\ttexture.uuid = data.uuid;\n\n\t\t\t\t\tif ( data.name !== undefined ) texture.name = data.name;\n\n\t\t\t\t\tif ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );\n\n\t\t\t\t\tif ( data.offset !== undefined ) texture.offset.fromArray( data.offset );\n\t\t\t\t\tif ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );\n\t\t\t\t\tif ( data.center !== undefined ) texture.center.fromArray( data.center );\n\t\t\t\t\tif ( data.rotation !== undefined ) texture.rotation = data.rotation;\n\n\t\t\t\t\tif ( data.wrap !== undefined ) {\n\n\t\t\t\t\t\ttexture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );\n\t\t\t\t\t\ttexture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( data.format !== undefined ) texture.format = data.format;\n\n\t\t\t\t\tif ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );\n\t\t\t\t\tif ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );\n\t\t\t\t\tif ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;\n\n\t\t\t\t\tif ( data.flipY !== undefined ) texture.flipY = data.flipY;\n\n\t\t\t\t\ttextures[ data.uuid ] = texture;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn textures;\n\n\t\t},\n\n\t\tparseObject: function ( data, geometries, materials ) {\n\n\t\t\tvar object;\n\n\t\t\tfunction getGeometry( name ) {\n\n\t\t\t\tif ( geometries[ name ] === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined geometry', name );\n\n\t\t\t\t}\n\n\t\t\t\treturn geometries[ name ];\n\n\t\t\t}\n\n\t\t\tfunction getMaterial( name ) {\n\n\t\t\t\tif ( name === undefined ) return undefined;\n\n\t\t\t\tif ( Array.isArray( name ) ) {\n\n\t\t\t\t\tvar array = [];\n\n\t\t\t\t\tfor ( var i = 0, l = name.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tvar uuid = name[ i ];\n\n\t\t\t\t\t\tif ( materials[ uuid ] === undefined ) {\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined material', uuid );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tarray.push( materials[ uuid ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn array;\n\n\t\t\t\t}\n\n\t\t\t\tif ( materials[ name ] === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined material', name );\n\n\t\t\t\t}\n\n\t\t\t\treturn materials[ name ];\n\n\t\t\t}\n\n\t\t\tswitch ( data.type ) {\n\n\t\t\t\tcase 'Scene':\n\n\t\t\t\t\tobject = new Scene();\n\n\t\t\t\t\tif ( data.background !== undefined ) {\n\n\t\t\t\t\t\tif ( Number.isInteger( data.background ) ) {\n\n\t\t\t\t\t\t\tobject.background = new Color( data.background );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( data.fog !== undefined ) {\n\n\t\t\t\t\t\tif ( data.fog.type === 'Fog' ) {\n\n\t\t\t\t\t\t\tobject.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );\n\n\t\t\t\t\t\t} else if ( data.fog.type === 'FogExp2' ) {\n\n\t\t\t\t\t\t\tobject.fog = new FogExp2( data.fog.color, data.fog.density );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'PerspectiveCamera':\n\n\t\t\t\t\tobject = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );\n\n\t\t\t\t\tif ( data.focus !== undefined ) object.focus = data.focus;\n\t\t\t\t\tif ( data.zoom !== undefined ) object.zoom = data.zoom;\n\t\t\t\t\tif ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;\n\t\t\t\t\tif ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;\n\t\t\t\t\tif ( data.view !== undefined ) object.view = Object.assign( {}, data.view );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'OrthographicCamera':\n\n\t\t\t\t\tobject = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );\n\n\t\t\t\t\tif ( data.zoom !== undefined ) object.zoom = data.zoom;\n\t\t\t\t\tif ( data.view !== undefined ) object.view = Object.assign( {}, data.view );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'AmbientLight':\n\n\t\t\t\t\tobject = new AmbientLight( data.color, data.intensity );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'DirectionalLight':\n\n\t\t\t\t\tobject = new DirectionalLight( data.color, data.intensity );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'PointLight':\n\n\t\t\t\t\tobject = new PointLight( data.color, data.intensity, data.distance, data.decay );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'RectAreaLight':\n\n\t\t\t\t\tobject = new RectAreaLight( data.color, data.intensity, data.width, data.height );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'SpotLight':\n\n\t\t\t\t\tobject = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'HemisphereLight':\n\n\t\t\t\t\tobject = new HemisphereLight( data.color, data.groundColor, data.intensity );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'SkinnedMesh':\n\n\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );\n\n\t\t\t\tcase 'Mesh':\n\n\t\t\t\t\tvar geometry = getGeometry( data.geometry );\n\t\t\t\t\tvar material = getMaterial( data.material );\n\n\t\t\t\t\tif ( geometry.bones && geometry.bones.length > 0 ) {\n\n\t\t\t\t\t\tobject = new SkinnedMesh( geometry, material );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tobject = new Mesh( geometry, material );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'LOD':\n\n\t\t\t\t\tobject = new LOD();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'Line':\n\n\t\t\t\t\tobject = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'LineLoop':\n\n\t\t\t\t\tobject = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'LineSegments':\n\n\t\t\t\t\tobject = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'PointCloud':\n\t\t\t\tcase 'Points':\n\n\t\t\t\t\tobject = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'Sprite':\n\n\t\t\t\t\tobject = new Sprite( getMaterial( data.material ) );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'Group':\n\n\t\t\t\t\tobject = new Group();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tobject = new Object3D();\n\n\t\t\t}\n\n\t\t\tobject.uuid = data.uuid;\n\n\t\t\tif ( data.name !== undefined ) object.name = data.name;\n\n\t\t\tif ( data.matrix !== undefined ) {\n\n\t\t\t\tobject.matrix.fromArray( data.matrix );\n\n\t\t\t\tif ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate;\n\t\t\t\tif ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale );\n\n\t\t\t} else {\n\n\t\t\t\tif ( data.position !== undefined ) object.position.fromArray( data.position );\n\t\t\t\tif ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );\n\t\t\t\tif ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );\n\t\t\t\tif ( data.scale !== undefined ) object.scale.fromArray( data.scale );\n\n\t\t\t}\n\n\t\t\tif ( data.castShadow !== undefined ) object.castShadow = data.castShadow;\n\t\t\tif ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;\n\n\t\t\tif ( data.shadow ) {\n\n\t\t\t\tif ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;\n\t\t\t\tif ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;\n\t\t\t\tif ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );\n\t\t\t\tif ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );\n\n\t\t\t}\n\n\t\t\tif ( data.visible !== undefined ) object.visible = data.visible;\n\t\t\tif ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled;\n\t\t\tif ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder;\n\t\t\tif ( data.userData !== undefined ) object.userData = data.userData;\n\t\t\tif ( data.layers !== undefined ) object.layers.mask = data.layers;\n\n\t\t\tif ( data.children !== undefined ) {\n\n\t\t\t\tvar children = data.children;\n\n\t\t\t\tfor ( var i = 0; i < children.length; i ++ ) {\n\n\t\t\t\t\tobject.add( this.parseObject( children[ i ], geometries, materials ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( data.type === 'LOD' ) {\n\n\t\t\t\tvar levels = data.levels;\n\n\t\t\t\tfor ( var l = 0; l < levels.length; l ++ ) {\n\n\t\t\t\t\tvar level = levels[ l ];\n\t\t\t\t\tvar child = object.getObjectByProperty( 'uuid', level.object );\n\n\t\t\t\t\tif ( child !== undefined ) {\n\n\t\t\t\t\t\tobject.addLevel( child, level.distance );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn object;\n\n\t\t}\n\n\t} );\n\n\tvar TEXTURE_MAPPING = {\n\t\tUVMapping: UVMapping,\n\t\tCubeReflectionMapping: CubeReflectionMapping,\n\t\tCubeRefractionMapping: CubeRefractionMapping,\n\t\tEquirectangularReflectionMapping: EquirectangularReflectionMapping,\n\t\tEquirectangularRefractionMapping: EquirectangularRefractionMapping,\n\t\tSphericalReflectionMapping: SphericalReflectionMapping,\n\t\tCubeUVReflectionMapping: CubeUVReflectionMapping,\n\t\tCubeUVRefractionMapping: CubeUVRefractionMapping\n\t};\n\n\tvar TEXTURE_WRAPPING = {\n\t\tRepeatWrapping: RepeatWrapping,\n\t\tClampToEdgeWrapping: ClampToEdgeWrapping,\n\t\tMirroredRepeatWrapping: MirroredRepeatWrapping\n\t};\n\n\tvar TEXTURE_FILTER = {\n\t\tNearestFilter: NearestFilter,\n\t\tNearestMipMapNearestFilter: NearestMipMapNearestFilter,\n\t\tNearestMipMapLinearFilter: NearestMipMapLinearFilter,\n\t\tLinearFilter: LinearFilter,\n\t\tLinearMipMapNearestFilter: LinearMipMapNearestFilter,\n\t\tLinearMipMapLinearFilter: LinearMipMapLinearFilter\n\t};\n\n\t/**\n\t * @author thespite / http://clicktorelease.com/\n\t */\n\n\n\tfunction ImageBitmapLoader( manager ) {\n\n\t\tif ( typeof createImageBitmap === 'undefined' ) {\n\n\t\t\tconsole.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );\n\n\t\t}\n\n\t\tif ( typeof fetch === 'undefined' ) {\n\n\t\t\tconsole.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );\n\n\t\t}\n\n\t\tthis.manager = manager !== undefined ? manager : DefaultLoadingManager;\n\t\tthis.options = undefined;\n\n\t}\n\n\tImageBitmapLoader.prototype = {\n\n\t\tconstructor: ImageBitmapLoader,\n\n\t\tsetOptions: function setOptions( options ) {\n\n\t\t\tthis.options = options;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( url === undefined ) url = '';\n\n\t\t\tif ( this.path !== undefined ) url = this.path + url;\n\n\t\t\turl = this.manager.resolveURL( url );\n\n\t\t\tvar scope = this;\n\n\t\t\tvar cached = Cache.get( url );\n\n\t\t\tif ( cached !== undefined ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\tsetTimeout( function () {\n\n\t\t\t\t\tif ( onLoad ) onLoad( cached );\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, 0 );\n\n\t\t\t\treturn cached;\n\n\t\t\t}\n\n\t\t\tfetch( url ).then( function ( res ) {\n\n\t\t\t\treturn res.blob();\n\n\t\t\t} ).then( function ( blob ) {\n\n\t\t\t\treturn createImageBitmap( blob, scope.options );\n\n\t\t\t} ).then( function ( imageBitmap ) {\n\n\t\t\t\tCache.add( url, imageBitmap );\n\n\t\t\t\tif ( onLoad ) onLoad( imageBitmap );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t} ).catch( function ( e ) {\n\n\t\t\t\tif ( onError ) onError( e );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t} );\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( /* value */ ) {\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * minimal class for proxing functions to Path. Replaces old \"extractSubpaths()\"\n\t **/\n\n\tfunction ShapePath() {\n\n\t\tthis.type = 'ShapePath';\n\n\t\tthis.color = new Color();\n\n\t\tthis.subPaths = [];\n\t\tthis.currentPath = null;\n\n\t}\n\n\tObject.assign( ShapePath.prototype, {\n\n\t\tmoveTo: function ( x, y ) {\n\n\t\t\tthis.currentPath = new Path();\n\t\t\tthis.subPaths.push( this.currentPath );\n\t\t\tthis.currentPath.moveTo( x, y );\n\n\t\t},\n\n\t\tlineTo: function ( x, y ) {\n\n\t\t\tthis.currentPath.lineTo( x, y );\n\n\t\t},\n\n\t\tquadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {\n\n\t\t\tthis.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );\n\n\t\t},\n\n\t\tbezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {\n\n\t\t\tthis.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );\n\n\t\t},\n\n\t\tsplineThru: function ( pts ) {\n\n\t\t\tthis.currentPath.splineThru( pts );\n\n\t\t},\n\n\t\ttoShapes: function ( isCCW, noHoles ) {\n\n\t\t\tfunction toShapesNoHoles( inSubpaths ) {\n\n\t\t\t\tvar shapes = [];\n\n\t\t\t\tfor ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar tmpPath = inSubpaths[ i ];\n\n\t\t\t\t\tvar tmpShape = new Shape();\n\t\t\t\t\ttmpShape.curves = tmpPath.curves;\n\n\t\t\t\t\tshapes.push( tmpShape );\n\n\t\t\t\t}\n\n\t\t\t\treturn shapes;\n\n\t\t\t}\n\n\t\t\tfunction isPointInsidePolygon( inPt, inPolygon ) {\n\n\t\t\t\tvar polyLen = inPolygon.length;\n\n\t\t\t\t// inPt on polygon contour => immediate success or\n\t\t\t\t// toggling of inside/outside at every single! intersection point of an edge\n\t\t\t\t// with the horizontal line through inPt, left of inPt\n\t\t\t\t// not counting lowerY endpoints of edges and whole edges on that line\n\t\t\t\tvar inside = false;\n\t\t\t\tfor ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {\n\n\t\t\t\t\tvar edgeLowPt = inPolygon[ p ];\n\t\t\t\t\tvar edgeHighPt = inPolygon[ q ];\n\n\t\t\t\t\tvar edgeDx = edgeHighPt.x - edgeLowPt.x;\n\t\t\t\t\tvar edgeDy = edgeHighPt.y - edgeLowPt.y;\n\n\t\t\t\t\tif ( Math.abs( edgeDy ) > Number.EPSILON ) {\n\n\t\t\t\t\t\t// not parallel\n\t\t\t\t\t\tif ( edgeDy < 0 ) {\n\n\t\t\t\t\t\t\tedgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;\n\t\t\t\t\t\t\tedgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) \t\tcontinue;\n\n\t\t\t\t\t\tif ( inPt.y === edgeLowPt.y ) {\n\n\t\t\t\t\t\t\tif ( inPt.x === edgeLowPt.x )\t\treturn\ttrue;\t\t// inPt is on contour ?\n\t\t\t\t\t\t\t// continue;\t\t\t\t// no intersection or edgeLowPt => doesn't count !!!\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );\n\t\t\t\t\t\t\tif ( perpEdge === 0 )\t\t\t\treturn\ttrue;\t\t// inPt is on contour ?\n\t\t\t\t\t\t\tif ( perpEdge < 0 ) \t\t\t\tcontinue;\n\t\t\t\t\t\t\tinside = ! inside;\t\t// true intersection left of inPt\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// parallel or collinear\n\t\t\t\t\t\tif ( inPt.y !== edgeLowPt.y ) \t\tcontinue;\t\t\t// parallel\n\t\t\t\t\t\t// edge lies on the same horizontal line as inPt\n\t\t\t\t\t\tif ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||\n\t\t\t\t\t\t\t ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )\t\treturn\ttrue;\t// inPt: Point on contour !\n\t\t\t\t\t\t// continue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn\tinside;\n\n\t\t\t}\n\n\t\t\tvar isClockWise = ShapeUtils.isClockWise;\n\n\t\t\tvar subPaths = this.subPaths;\n\t\t\tif ( subPaths.length === 0 ) return [];\n\n\t\t\tif ( noHoles === true )\treturn\ttoShapesNoHoles( subPaths );\n\n\n\t\t\tvar solid, tmpPath, tmpShape, shapes = [];\n\n\t\t\tif ( subPaths.length === 1 ) {\n\n\t\t\t\ttmpPath = subPaths[ 0 ];\n\t\t\t\ttmpShape = new Shape();\n\t\t\t\ttmpShape.curves = tmpPath.curves;\n\t\t\t\tshapes.push( tmpShape );\n\t\t\t\treturn shapes;\n\n\t\t\t}\n\n\t\t\tvar holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );\n\t\t\tholesFirst = isCCW ? ! holesFirst : holesFirst;\n\n\t\t\t// console.log(\"Holes first\", holesFirst);\n\n\t\t\tvar betterShapeHoles = [];\n\t\t\tvar newShapes = [];\n\t\t\tvar newShapeHoles = [];\n\t\t\tvar mainIdx = 0;\n\t\t\tvar tmpPoints;\n\n\t\t\tnewShapes[ mainIdx ] = undefined;\n\t\t\tnewShapeHoles[ mainIdx ] = [];\n\n\t\t\tfor ( var i = 0, l = subPaths.length; i < l; i ++ ) {\n\n\t\t\t\ttmpPath = subPaths[ i ];\n\t\t\t\ttmpPoints = tmpPath.getPoints();\n\t\t\t\tsolid = isClockWise( tmpPoints );\n\t\t\t\tsolid = isCCW ? ! solid : solid;\n\n\t\t\t\tif ( solid ) {\n\n\t\t\t\t\tif ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )\tmainIdx ++;\n\n\t\t\t\t\tnewShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };\n\t\t\t\t\tnewShapes[ mainIdx ].s.curves = tmpPath.curves;\n\n\t\t\t\t\tif ( holesFirst )\tmainIdx ++;\n\t\t\t\t\tnewShapeHoles[ mainIdx ] = [];\n\n\t\t\t\t\t//console.log('cw', i);\n\n\t\t\t\t} else {\n\n\t\t\t\t\tnewShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );\n\n\t\t\t\t\t//console.log('ccw', i);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// only Holes? -> probably all Shapes with wrong orientation\n\t\t\tif ( ! newShapes[ 0 ] )\treturn\ttoShapesNoHoles( subPaths );\n\n\n\t\t\tif ( newShapes.length > 1 ) {\n\n\t\t\t\tvar ambiguous = false;\n\t\t\t\tvar toChange = [];\n\n\t\t\t\tfor ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {\n\n\t\t\t\t\tbetterShapeHoles[ sIdx ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {\n\n\t\t\t\t\tvar sho = newShapeHoles[ sIdx ];\n\n\t\t\t\t\tfor ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {\n\n\t\t\t\t\t\tvar ho = sho[ hIdx ];\n\t\t\t\t\t\tvar hole_unassigned = true;\n\n\t\t\t\t\t\tfor ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {\n\n\t\t\t\t\t\t\tif ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {\n\n\t\t\t\t\t\t\t\tif ( sIdx !== s2Idx )\ttoChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );\n\t\t\t\t\t\t\t\tif ( hole_unassigned ) {\n\n\t\t\t\t\t\t\t\t\thole_unassigned = false;\n\t\t\t\t\t\t\t\t\tbetterShapeHoles[ s2Idx ].push( ho );\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tambiguous = true;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( hole_unassigned ) {\n\n\t\t\t\t\t\t\tbetterShapeHoles[ sIdx ].push( ho );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\t\t\t\t// console.log(\"ambiguous: \", ambiguous);\n\t\t\t\tif ( toChange.length > 0 ) {\n\n\t\t\t\t\t// console.log(\"to change: \", toChange);\n\t\t\t\t\tif ( ! ambiguous )\tnewShapeHoles = betterShapeHoles;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar tmpHoles;\n\n\t\t\tfor ( var i = 0, il = newShapes.length; i < il; i ++ ) {\n\n\t\t\t\ttmpShape = newShapes[ i ].s;\n\t\t\t\tshapes.push( tmpShape );\n\t\t\t\ttmpHoles = newShapeHoles[ i ];\n\n\t\t\t\tfor ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {\n\n\t\t\t\t\ttmpShape.holes.push( tmpHoles[ j ].h );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//console.log(\"shape\", shapes);\n\n\t\t\treturn shapes;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction Font( data ) {\n\n\t\tthis.type = 'Font';\n\n\t\tthis.data = data;\n\n\t}\n\n\tObject.assign( Font.prototype, {\n\n\t\tisFont: true,\n\n\t\tgenerateShapes: function ( text, size ) {\n\n\t\t\tif ( size === undefined ) size = 100;\n\n\t\t\tvar shapes = [];\n\t\t\tvar paths = createPaths( text, size, this.data );\n\n\t\t\tfor ( var p = 0, pl = paths.length; p < pl; p ++ ) {\n\n\t\t\t\tArray.prototype.push.apply( shapes, paths[ p ].toShapes() );\n\n\t\t\t}\n\n\t\t\treturn shapes;\n\n\t\t}\n\n\t} );\n\n\tfunction createPaths( text, size, data ) {\n\n\t\tvar chars = Array.from ? Array.from( text ) : String( text ).split( '' ); // see #13988\n\t\tvar scale = size / data.resolution;\n\t\tvar line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;\n\n\t\tvar paths = [];\n\n\t\tvar offsetX = 0, offsetY = 0;\n\n\t\tfor ( var i = 0; i < chars.length; i ++ ) {\n\n\t\t\tvar char = chars[ i ];\n\n\t\t\tif ( char === '\\n' ) {\n\n\t\t\t\toffsetX = 0;\n\t\t\t\toffsetY -= line_height;\n\n\t\t\t} else {\n\n\t\t\t\tvar ret = createPath( char, scale, offsetX, offsetY, data );\n\t\t\t\toffsetX += ret.offsetX;\n\t\t\t\tpaths.push( ret.path );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn paths;\n\n\t}\n\n\tfunction createPath( char, scale, offsetX, offsetY, data ) {\n\n\t\tvar glyph = data.glyphs[ char ] || data.glyphs[ '?' ];\n\n\t\tif ( ! glyph ) return;\n\n\t\tvar path = new ShapePath();\n\n\t\tvar x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;\n\n\t\tif ( glyph.o ) {\n\n\t\t\tvar outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );\n\n\t\t\tfor ( var i = 0, l = outline.length; i < l; ) {\n\n\t\t\t\tvar action = outline[ i ++ ];\n\n\t\t\t\tswitch ( action ) {\n\n\t\t\t\t\tcase 'm': // moveTo\n\n\t\t\t\t\t\tx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\ty = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.moveTo( x, y );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'l': // lineTo\n\n\t\t\t\t\t\tx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\ty = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.lineTo( x, y );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'q': // quadraticCurveTo\n\n\t\t\t\t\t\tcpx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy = outline[ i ++ ] * scale + offsetY;\n\t\t\t\t\t\tcpx1 = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy1 = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.quadraticCurveTo( cpx1, cpy1, cpx, cpy );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'b': // bezierCurveTo\n\n\t\t\t\t\t\tcpx = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy = outline[ i ++ ] * scale + offsetY;\n\t\t\t\t\t\tcpx1 = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy1 = outline[ i ++ ] * scale + offsetY;\n\t\t\t\t\t\tcpx2 = outline[ i ++ ] * scale + offsetX;\n\t\t\t\t\t\tcpy2 = outline[ i ++ ] * scale + offsetY;\n\n\t\t\t\t\t\tpath.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn { offsetX: glyph.ha * scale, path: path };\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction FontLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( FontLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setPath( this.path );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json;\n\n\t\t\t\ttry {\n\n\t\t\t\t\tjson = JSON.parse( text );\n\n\t\t\t\t} catch ( e ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );\n\t\t\t\t\tjson = JSON.parse( text.substring( 65, text.length - 2 ) );\n\n\t\t\t\t}\n\n\t\t\t\tvar font = scope.parse( json );\n\n\t\t\t\tif ( onLoad ) onLoad( font );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\treturn new Font( json );\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar context;\n\n\tvar AudioContext = {\n\n\t\tgetContext: function () {\n\n\t\t\tif ( context === undefined ) {\n\n\t\t\t\tcontext = new ( window.AudioContext || window.webkitAudioContext )();\n\n\t\t\t}\n\n\t\t\treturn context;\n\n\t\t},\n\n\t\tsetContext: function ( value ) {\n\n\t\t\tcontext = value;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author Reece Aaron Lecrivain / http://reecenotes.com/\n\t */\n\n\tfunction AudioLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( AudioLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar loader = new FileLoader( this.manager );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\t// Create a copy of the buffer. The `decodeAudioData` method\n\t\t\t\t// detaches the buffer when complete, preventing reuse.\n\t\t\t\tvar bufferCopy = buffer.slice( 0 );\n\n\t\t\t\tvar context = AudioContext.getContext();\n\t\t\t\tcontext.decodeAudioData( bufferCopy, function ( audioBuffer ) {\n\n\t\t\t\t\tonLoad( audioBuffer );\n\n\t\t\t\t} );\n\n\t\t\t}, onProgress, onError );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction StereoCamera() {\n\n\t\tthis.type = 'StereoCamera';\n\n\t\tthis.aspect = 1;\n\n\t\tthis.eyeSep = 0.064;\n\n\t\tthis.cameraL = new PerspectiveCamera();\n\t\tthis.cameraL.layers.enable( 1 );\n\t\tthis.cameraL.matrixAutoUpdate = false;\n\n\t\tthis.cameraR = new PerspectiveCamera();\n\t\tthis.cameraR.layers.enable( 2 );\n\t\tthis.cameraR.matrixAutoUpdate = false;\n\n\t}\n\n\tObject.assign( StereoCamera.prototype, {\n\n\t\tupdate: ( function () {\n\n\t\t\tvar instance, focus, fov, aspect, near, far, zoom, eyeSep;\n\n\t\t\tvar eyeRight = new Matrix4();\n\t\t\tvar eyeLeft = new Matrix4();\n\n\t\t\treturn function update( camera ) {\n\n\t\t\t\tvar needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||\n\t\t\t\t\t\t\t\t\t\t\t\t\taspect !== camera.aspect * this.aspect || near !== camera.near ||\n\t\t\t\t\t\t\t\t\t\t\t\t\tfar !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;\n\n\t\t\t\tif ( needsUpdate ) {\n\n\t\t\t\t\tinstance = this;\n\t\t\t\t\tfocus = camera.focus;\n\t\t\t\t\tfov = camera.fov;\n\t\t\t\t\taspect = camera.aspect * this.aspect;\n\t\t\t\t\tnear = camera.near;\n\t\t\t\t\tfar = camera.far;\n\t\t\t\t\tzoom = camera.zoom;\n\n\t\t\t\t\t// Off-axis stereoscopic effect based on\n\t\t\t\t\t// http://paulbourke.net/stereographics/stereorender/\n\n\t\t\t\t\tvar projectionMatrix = camera.projectionMatrix.clone();\n\t\t\t\t\teyeSep = this.eyeSep / 2;\n\t\t\t\t\tvar eyeSepOnProjection = eyeSep * near / focus;\n\t\t\t\t\tvar ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;\n\t\t\t\t\tvar xmin, xmax;\n\n\t\t\t\t\t// translate xOffset\n\n\t\t\t\t\teyeLeft.elements[ 12 ] = - eyeSep;\n\t\t\t\t\teyeRight.elements[ 12 ] = eyeSep;\n\n\t\t\t\t\t// for left eye\n\n\t\t\t\t\txmin = - ymax * aspect + eyeSepOnProjection;\n\t\t\t\t\txmax = ymax * aspect + eyeSepOnProjection;\n\n\t\t\t\t\tprojectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );\n\t\t\t\t\tprojectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );\n\n\t\t\t\t\tthis.cameraL.projectionMatrix.copy( projectionMatrix );\n\n\t\t\t\t\t// for right eye\n\n\t\t\t\t\txmin = - ymax * aspect - eyeSepOnProjection;\n\t\t\t\t\txmax = ymax * aspect - eyeSepOnProjection;\n\n\t\t\t\t\tprojectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );\n\t\t\t\t\tprojectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );\n\n\t\t\t\t\tthis.cameraR.projectionMatrix.copy( projectionMatrix );\n\n\t\t\t\t}\n\n\t\t\t\tthis.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );\n\t\t\t\tthis.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * Camera for rendering cube maps\n\t *\t- renders scene into axis-aligned cube\n\t *\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction CubeCamera( near, far, cubeResolution ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'CubeCamera';\n\n\t\tvar fov = 90, aspect = 1;\n\n\t\tvar cameraPX = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPX.up.set( 0, - 1, 0 );\n\t\tcameraPX.lookAt( new Vector3( 1, 0, 0 ) );\n\t\tthis.add( cameraPX );\n\n\t\tvar cameraNX = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNX.up.set( 0, - 1, 0 );\n\t\tcameraNX.lookAt( new Vector3( - 1, 0, 0 ) );\n\t\tthis.add( cameraNX );\n\n\t\tvar cameraPY = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPY.up.set( 0, 0, 1 );\n\t\tcameraPY.lookAt( new Vector3( 0, 1, 0 ) );\n\t\tthis.add( cameraPY );\n\n\t\tvar cameraNY = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNY.up.set( 0, 0, - 1 );\n\t\tcameraNY.lookAt( new Vector3( 0, - 1, 0 ) );\n\t\tthis.add( cameraNY );\n\n\t\tvar cameraPZ = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPZ.up.set( 0, - 1, 0 );\n\t\tcameraPZ.lookAt( new Vector3( 0, 0, 1 ) );\n\t\tthis.add( cameraPZ );\n\n\t\tvar cameraNZ = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNZ.up.set( 0, - 1, 0 );\n\t\tcameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );\n\t\tthis.add( cameraNZ );\n\n\t\tvar options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };\n\n\t\tthis.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );\n\t\tthis.renderTarget.texture.name = \"CubeCamera\";\n\n\t\tthis.update = function ( renderer, scene ) {\n\n\t\t\tif ( this.parent === null ) this.updateMatrixWorld();\n\n\t\t\tvar renderTarget = this.renderTarget;\n\t\t\tvar generateMipmaps = renderTarget.texture.generateMipmaps;\n\n\t\t\trenderTarget.texture.generateMipmaps = false;\n\n\t\t\trenderTarget.activeCubeFace = 0;\n\t\t\trenderer.render( scene, cameraPX, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 1;\n\t\t\trenderer.render( scene, cameraNX, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 2;\n\t\t\trenderer.render( scene, cameraPY, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 3;\n\t\t\trenderer.render( scene, cameraNY, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 4;\n\t\t\trenderer.render( scene, cameraPZ, renderTarget );\n\n\t\t\trenderTarget.texture.generateMipmaps = generateMipmaps;\n\n\t\t\trenderTarget.activeCubeFace = 5;\n\t\t\trenderer.render( scene, cameraNZ, renderTarget );\n\n\t\t\trenderer.setRenderTarget( null );\n\n\t\t};\n\n\t\tthis.clear = function ( renderer, color, depth, stencil ) {\n\n\t\t\tvar renderTarget = this.renderTarget;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\trenderTarget.activeCubeFace = i;\n\t\t\t\trenderer.setRenderTarget( renderTarget );\n\n\t\t\t\trenderer.clear( color, depth, stencil );\n\n\t\t\t}\n\n\t\t\trenderer.setRenderTarget( null );\n\n\t\t};\n\n\t}\n\n\tCubeCamera.prototype = Object.create( Object3D.prototype );\n\tCubeCamera.prototype.constructor = CubeCamera;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AudioListener() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'AudioListener';\n\n\t\tthis.context = AudioContext.getContext();\n\n\t\tthis.gain = this.context.createGain();\n\t\tthis.gain.connect( this.context.destination );\n\n\t\tthis.filter = null;\n\n\t}\n\n\tAudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: AudioListener,\n\n\t\tgetInput: function () {\n\n\t\t\treturn this.gain;\n\n\t\t},\n\n\t\tremoveFilter: function ( ) {\n\n\t\t\tif ( this.filter !== null ) {\n\n\t\t\t\tthis.gain.disconnect( this.filter );\n\t\t\t\tthis.filter.disconnect( this.context.destination );\n\t\t\t\tthis.gain.connect( this.context.destination );\n\t\t\t\tthis.filter = null;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilter: function () {\n\n\t\t\treturn this.filter;\n\n\t\t},\n\n\t\tsetFilter: function ( value ) {\n\n\t\t\tif ( this.filter !== null ) {\n\n\t\t\t\tthis.gain.disconnect( this.filter );\n\t\t\t\tthis.filter.disconnect( this.context.destination );\n\n\t\t\t} else {\n\n\t\t\t\tthis.gain.disconnect( this.context.destination );\n\n\t\t\t}\n\n\t\t\tthis.filter = value;\n\t\t\tthis.gain.connect( this.filter );\n\t\t\tthis.filter.connect( this.context.destination );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetMasterVolume: function () {\n\n\t\t\treturn this.gain.gain.value;\n\n\t\t},\n\n\t\tsetMasterVolume: function ( value ) {\n\n\t\t\tthis.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateMatrixWorld: ( function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\t\t\tvar scale = new Vector3();\n\n\t\t\tvar orientation = new Vector3();\n\n\t\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\t\tvar listener = this.context.listener;\n\t\t\t\tvar up = this.up;\n\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, scale );\n\n\t\t\t\torientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );\n\n\t\t\t\tif ( listener.positionX ) {\n\n\t\t\t\t\tlistener.positionX.setValueAtTime( position.x, this.context.currentTime );\n\t\t\t\t\tlistener.positionY.setValueAtTime( position.y, this.context.currentTime );\n\t\t\t\t\tlistener.positionZ.setValueAtTime( position.z, this.context.currentTime );\n\t\t\t\t\tlistener.forwardX.setValueAtTime( orientation.x, this.context.currentTime );\n\t\t\t\t\tlistener.forwardY.setValueAtTime( orientation.y, this.context.currentTime );\n\t\t\t\t\tlistener.forwardZ.setValueAtTime( orientation.z, this.context.currentTime );\n\t\t\t\t\tlistener.upX.setValueAtTime( up.x, this.context.currentTime );\n\t\t\t\t\tlistener.upY.setValueAtTime( up.y, this.context.currentTime );\n\t\t\t\t\tlistener.upZ.setValueAtTime( up.z, this.context.currentTime );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tlistener.setPosition( position.x, position.y, position.z );\n\t\t\t\t\tlistener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Reece Aaron Lecrivain / http://reecenotes.com/\n\t */\n\n\tfunction Audio( listener ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Audio';\n\n\t\tthis.context = listener.context;\n\n\t\tthis.gain = this.context.createGain();\n\t\tthis.gain.connect( listener.getInput() );\n\n\t\tthis.autoplay = false;\n\n\t\tthis.buffer = null;\n\t\tthis.loop = false;\n\t\tthis.startTime = 0;\n\t\tthis.offset = 0;\n\t\tthis.playbackRate = 1;\n\t\tthis.isPlaying = false;\n\t\tthis.hasPlaybackControl = true;\n\t\tthis.sourceType = 'empty';\n\n\t\tthis.filters = [];\n\n\t}\n\n\tAudio.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Audio,\n\n\t\tgetOutput: function () {\n\n\t\t\treturn this.gain;\n\n\t\t},\n\n\t\tsetNodeSource: function ( audioNode ) {\n\n\t\t\tthis.hasPlaybackControl = false;\n\t\t\tthis.sourceType = 'audioNode';\n\t\t\tthis.source = audioNode;\n\t\t\tthis.connect();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetMediaElementSource: function ( mediaElement ) {\n\n\t\t\tthis.hasPlaybackControl = false;\n\t\t\tthis.sourceType = 'mediaNode';\n\t\t\tthis.source = this.context.createMediaElementSource( mediaElement );\n\t\t\tthis.connect();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetBuffer: function ( audioBuffer ) {\n\n\t\t\tthis.buffer = audioBuffer;\n\t\t\tthis.sourceType = 'buffer';\n\n\t\t\tif ( this.autoplay ) this.play();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tplay: function () {\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: Audio is already playing.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar source = this.context.createBufferSource();\n\n\t\t\tsource.buffer = this.buffer;\n\t\t\tsource.loop = this.loop;\n\t\t\tsource.onended = this.onEnded.bind( this );\n\t\t\tsource.playbackRate.setValueAtTime( this.playbackRate, this.startTime );\n\t\t\tthis.startTime = this.context.currentTime;\n\t\t\tsource.start( this.startTime, this.offset );\n\n\t\t\tthis.isPlaying = true;\n\n\t\t\tthis.source = source;\n\n\t\t\treturn this.connect();\n\n\t\t},\n\n\t\tpause: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.source.stop();\n\t\t\t\tthis.source.onended = null;\n\t\t\t\tthis.offset += ( this.context.currentTime - this.startTime ) * this.playbackRate;\n\t\t\t\tthis.isPlaying = false;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.source.stop();\n\t\t\tthis.source.onended = null;\n\t\t\tthis.offset = 0;\n\t\t\tthis.isPlaying = false;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconnect: function () {\n\n\t\t\tif ( this.filters.length > 0 ) {\n\n\t\t\t\tthis.source.connect( this.filters[ 0 ] );\n\n\t\t\t\tfor ( var i = 1, l = this.filters.length; i < l; i ++ ) {\n\n\t\t\t\t\tthis.filters[ i - 1 ].connect( this.filters[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\tthis.filters[ this.filters.length - 1 ].connect( this.getOutput() );\n\n\t\t\t} else {\n\n\t\t\t\tthis.source.connect( this.getOutput() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdisconnect: function () {\n\n\t\t\tif ( this.filters.length > 0 ) {\n\n\t\t\t\tthis.source.disconnect( this.filters[ 0 ] );\n\n\t\t\t\tfor ( var i = 1, l = this.filters.length; i < l; i ++ ) {\n\n\t\t\t\t\tthis.filters[ i - 1 ].disconnect( this.filters[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\tthis.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );\n\n\t\t\t} else {\n\n\t\t\t\tthis.source.disconnect( this.getOutput() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilters: function () {\n\n\t\t\treturn this.filters;\n\n\t\t},\n\n\t\tsetFilters: function ( value ) {\n\n\t\t\tif ( ! value ) value = [];\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.disconnect();\n\t\t\t\tthis.filters = value;\n\t\t\t\tthis.connect();\n\n\t\t\t} else {\n\n\t\t\t\tthis.filters = value;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilter: function () {\n\n\t\t\treturn this.getFilters()[ 0 ];\n\n\t\t},\n\n\t\tsetFilter: function ( filter ) {\n\n\t\t\treturn this.setFilters( filter ? [ filter ] : [] );\n\n\t\t},\n\n\t\tsetPlaybackRate: function ( value ) {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.playbackRate = value;\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.source.playbackRate.setValueAtTime( this.playbackRate, this.context.currentTime );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetPlaybackRate: function () {\n\n\t\t\treturn this.playbackRate;\n\n\t\t},\n\n\t\tonEnded: function () {\n\n\t\t\tthis.isPlaying = false;\n\n\t\t},\n\n\t\tgetLoop: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\treturn this.loop;\n\n\t\t},\n\n\t\tsetLoop: function ( value ) {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.loop = value;\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.source.loop = this.loop;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetVolume: function () {\n\n\t\t\treturn this.gain.gain.value;\n\n\t\t},\n\n\t\tsetVolume: function ( value ) {\n\n\t\t\tthis.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction PositionalAudio( listener ) {\n\n\t\tAudio.call( this, listener );\n\n\t\tthis.panner = this.context.createPanner();\n\t\tthis.panner.connect( this.gain );\n\n\t}\n\n\tPositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {\n\n\t\tconstructor: PositionalAudio,\n\n\t\tgetOutput: function () {\n\n\t\t\treturn this.panner;\n\n\t\t},\n\n\t\tgetRefDistance: function () {\n\n\t\t\treturn this.panner.refDistance;\n\n\t\t},\n\n\t\tsetRefDistance: function ( value ) {\n\n\t\t\tthis.panner.refDistance = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetRolloffFactor: function () {\n\n\t\t\treturn this.panner.rolloffFactor;\n\n\t\t},\n\n\t\tsetRolloffFactor: function ( value ) {\n\n\t\t\tthis.panner.rolloffFactor = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetDistanceModel: function () {\n\n\t\t\treturn this.panner.distanceModel;\n\n\t\t},\n\n\t\tsetDistanceModel: function ( value ) {\n\n\t\t\tthis.panner.distanceModel = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetMaxDistance: function () {\n\n\t\t\treturn this.panner.maxDistance;\n\n\t\t},\n\n\t\tsetMaxDistance: function ( value ) {\n\n\t\t\tthis.panner.maxDistance = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetDirectionalCone: function ( coneInnerAngle, coneOuterAngle, coneOuterGain ) {\n\n\t\t\tthis.panner.coneInnerAngle = coneInnerAngle;\n\t\t\tthis.panner.coneOuterAngle = coneOuterAngle;\n\t\t\tthis.panner.coneOuterGain = coneOuterGain;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateMatrixWorld: ( function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\t\t\tvar scale = new Vector3();\n\n\t\t\tvar orientation = new Vector3();\n\n\t\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\t\tvar panner = this.panner;\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, scale );\n\n\t\t\t\torientation.set( 0, 0, 1 ).applyQuaternion( quaternion );\n\n\t\t\t\tpanner.setPosition( position.x, position.y, position.z );\n\t\t\t\tpanner.setOrientation( orientation.x, orientation.y, orientation.z );\n\n\t\t\t};\n\n\t\t} )()\n\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AudioAnalyser( audio, fftSize ) {\n\n\t\tthis.analyser = audio.context.createAnalyser();\n\t\tthis.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;\n\n\t\tthis.data = new Uint8Array( this.analyser.frequencyBinCount );\n\n\t\taudio.getOutput().connect( this.analyser );\n\n\t}\n\n\tObject.assign( AudioAnalyser.prototype, {\n\n\t\tgetFrequencyData: function () {\n\n\t\t\tthis.analyser.getByteFrequencyData( this.data );\n\n\t\t\treturn this.data;\n\n\t\t},\n\n\t\tgetAverageFrequency: function () {\n\n\t\t\tvar value = 0, data = this.getFrequencyData();\n\n\t\t\tfor ( var i = 0; i < data.length; i ++ ) {\n\n\t\t\t\tvalue += data[ i ];\n\n\t\t\t}\n\n\t\t\treturn value / data.length;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Buffered scene graph property that allows weighted accumulation.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction PropertyMixer( binding, typeName, valueSize ) {\n\n\t\tthis.binding = binding;\n\t\tthis.valueSize = valueSize;\n\n\t\tvar bufferType = Float64Array,\n\t\t\tmixFunction;\n\n\t\tswitch ( typeName ) {\n\n\t\t\tcase 'quaternion':\n\t\t\t\tmixFunction = this._slerp;\n\t\t\t\tbreak;\n\n\t\t\tcase 'string':\n\t\t\tcase 'bool':\n\t\t\t\tbufferType = Array;\n\t\t\t\tmixFunction = this._select;\n\t\t\t\tbreak;\n\n\t\t\tdefault:\n\t\t\t\tmixFunction = this._lerp;\n\n\t\t}\n\n\t\tthis.buffer = new bufferType( valueSize * 4 );\n\t\t// layout: [ incoming | accu0 | accu1 | orig ]\n\t\t//\n\t\t// interpolators can use .buffer as their .result\n\t\t// the data then goes to 'incoming'\n\t\t//\n\t\t// 'accu0' and 'accu1' are used frame-interleaved for\n\t\t// the cumulative result and are compared to detect\n\t\t// changes\n\t\t//\n\t\t// 'orig' stores the original state of the property\n\n\t\tthis._mixBufferRegion = mixFunction;\n\n\t\tthis.cumulativeWeight = 0;\n\n\t\tthis.useCount = 0;\n\t\tthis.referenceCount = 0;\n\n\t}\n\n\tObject.assign( PropertyMixer.prototype, {\n\n\t\t// accumulate data in the 'incoming' region into 'accu'\n\t\taccumulate: function ( accuIndex, weight ) {\n\n\t\t\t// note: happily accumulating nothing when weight = 0, the caller knows\n\t\t\t// the weight and shouldn't have made the call in the first place\n\n\t\t\tvar buffer = this.buffer,\n\t\t\t\tstride = this.valueSize,\n\t\t\t\toffset = accuIndex * stride + stride,\n\n\t\t\t\tcurrentWeight = this.cumulativeWeight;\n\n\t\t\tif ( currentWeight === 0 ) {\n\n\t\t\t\t// accuN := incoming * weight\n\n\t\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\t\tbuffer[ offset + i ] = buffer[ i ];\n\n\t\t\t\t}\n\n\t\t\t\tcurrentWeight = weight;\n\n\t\t\t} else {\n\n\t\t\t\t// accuN := accuN + incoming * weight\n\n\t\t\t\tcurrentWeight += weight;\n\t\t\t\tvar mix = weight / currentWeight;\n\t\t\t\tthis._mixBufferRegion( buffer, offset, 0, mix, stride );\n\n\t\t\t}\n\n\t\t\tthis.cumulativeWeight = currentWeight;\n\n\t\t},\n\n\t\t// apply the state of 'accu' to the binding when accus differ\n\t\tapply: function ( accuIndex ) {\n\n\t\t\tvar stride = this.valueSize,\n\t\t\t\tbuffer = this.buffer,\n\t\t\t\toffset = accuIndex * stride + stride,\n\n\t\t\t\tweight = this.cumulativeWeight,\n\n\t\t\t\tbinding = this.binding;\n\n\t\t\tthis.cumulativeWeight = 0;\n\n\t\t\tif ( weight < 1 ) {\n\n\t\t\t\t// accuN := accuN + original * ( 1 - cumulativeWeight )\n\n\t\t\t\tvar originalValueOffset = stride * 3;\n\n\t\t\t\tthis._mixBufferRegion(\n\t\t\t\t\tbuffer, offset, originalValueOffset, 1 - weight, stride );\n\n\t\t\t}\n\n\t\t\tfor ( var i = stride, e = stride + stride; i !== e; ++ i ) {\n\n\t\t\t\tif ( buffer[ i ] !== buffer[ i + stride ] ) {\n\n\t\t\t\t\t// value has changed -> update scene graph\n\n\t\t\t\t\tbinding.setValue( buffer, offset );\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t// remember the state of the bound property and copy it to both accus\n\t\tsaveOriginalState: function () {\n\n\t\t\tvar binding = this.binding;\n\n\t\t\tvar buffer = this.buffer,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toriginalValueOffset = stride * 3;\n\n\t\t\tbinding.getValue( buffer, originalValueOffset );\n\n\t\t\t// accu[0..1] := orig -- initially detect changes against the original\n\t\t\tfor ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {\n\n\t\t\t\tbuffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];\n\n\t\t\t}\n\n\t\t\tthis.cumulativeWeight = 0;\n\n\t\t},\n\n\t\t// apply the state previously taken via 'saveOriginalState' to the binding\n\t\trestoreOriginalState: function () {\n\n\t\t\tvar originalValueOffset = this.valueSize * 3;\n\t\t\tthis.binding.setValue( this.buffer, originalValueOffset );\n\n\t\t},\n\n\n\t\t// mix functions\n\n\t\t_select: function ( buffer, dstOffset, srcOffset, t, stride ) {\n\n\t\t\tif ( t >= 0.5 ) {\n\n\t\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\t\tbuffer[ dstOffset + i ] = buffer[ srcOffset + i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_slerp: function ( buffer, dstOffset, srcOffset, t ) {\n\n\t\t\tQuaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );\n\n\t\t},\n\n\t\t_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {\n\n\t\t\tvar s = 1 - t;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tvar j = dstOffset + i;\n\n\t\t\t\tbuffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A reference to a real property in the scene graph.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\t// Characters [].:/ are reserved for track binding syntax.\n\tvar RESERVED_CHARS_RE = '\\\\[\\\\]\\\\.:\\\\/';\n\n\tfunction Composite( targetGroup, path, optionalParsedPath ) {\n\n\t\tvar parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );\n\n\t\tthis._targetGroup = targetGroup;\n\t\tthis._bindings = targetGroup.subscribe_( path, parsedPath );\n\n\t}\n\n\tObject.assign( Composite.prototype, {\n\n\t\tgetValue: function ( array, offset ) {\n\n\t\t\tthis.bind(); // bind all binding\n\n\t\t\tvar firstValidIndex = this._targetGroup.nCachedObjects_,\n\t\t\t\tbinding = this._bindings[ firstValidIndex ];\n\n\t\t\t// and only call .getValue on the first\n\t\t\tif ( binding !== undefined ) binding.getValue( array, offset );\n\n\t\t},\n\n\t\tsetValue: function ( array, offset ) {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\t n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].setValue( array, offset );\n\n\t\t\t}\n\n\t\t},\n\n\t\tbind: function () {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\t n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].bind();\n\n\t\t\t}\n\n\t\t},\n\n\t\tunbind: function () {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\t n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].unbind();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\n\tfunction PropertyBinding( rootNode, path, parsedPath ) {\n\n\t\tthis.path = path;\n\t\tthis.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );\n\n\t\tthis.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;\n\n\t\tthis.rootNode = rootNode;\n\n\t}\n\n\tObject.assign( PropertyBinding, {\n\n\t\tComposite: Composite,\n\n\t\tcreate: function ( root, path, parsedPath ) {\n\n\t\t\tif ( ! ( root && root.isAnimationObjectGroup ) ) {\n\n\t\t\t\treturn new PropertyBinding( root, path, parsedPath );\n\n\t\t\t} else {\n\n\t\t\t\treturn new PropertyBinding.Composite( root, path, parsedPath );\n\n\t\t\t}\n\n\t\t},\n\n\t\t/**\n\t\t * Replaces spaces with underscores and removes unsupported characters from\n\t\t * node names, to ensure compatibility with parseTrackName().\n\t\t *\n\t\t * @param {string} name Node name to be sanitized.\n\t\t * @return {string}\n\t\t */\n\t\tsanitizeNodeName: ( function () {\n\n\t\t\tvar reservedRe = new RegExp( '[' + RESERVED_CHARS_RE + ']', 'g' );\n\n\t\t\treturn function sanitizeNodeName( name ) {\n\n\t\t\t\treturn name.replace( /\\s/g, '_' ).replace( reservedRe, '' );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tparseTrackName: function () {\n\n\t\t\t// Attempts to allow node names from any language. ES5's `\\w` regexp matches\n\t\t\t// only latin characters, and the unicode \\p{L} is not yet supported. So\n\t\t\t// instead, we exclude reserved characters and match everything else.\n\t\t\tvar wordChar = '[^' + RESERVED_CHARS_RE + ']';\n\t\t\tvar wordCharOrDot = '[^' + RESERVED_CHARS_RE.replace( '\\\\.', '' ) + ']';\n\n\t\t\t// Parent directories, delimited by '/' or ':'. Currently unused, but must\n\t\t\t// be matched to parse the rest of the track name.\n\t\t\tvar directoryRe = /((?:WC+[\\/:])*)/.source.replace( 'WC', wordChar );\n\n\t\t\t// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.\n\t\t\tvar nodeRe = /(WCOD+)?/.source.replace( 'WCOD', wordCharOrDot );\n\n\t\t\t// Object on target node, and accessor. May not contain reserved\n\t\t\t// characters. Accessor may contain any character except closing bracket.\n\t\t\tvar objectRe = /(?:\\.(WC+)(?:\\[(.+)\\])?)?/.source.replace( 'WC', wordChar );\n\n\t\t\t// Property and accessor. May not contain reserved characters. Accessor may\n\t\t\t// contain any non-bracket characters.\n\t\t\tvar propertyRe = /\\.(WC+)(?:\\[(.+)\\])?/.source.replace( 'WC', wordChar );\n\n\t\t\tvar trackRe = new RegExp( ''\n\t\t\t\t+ '^'\n\t\t\t\t+ directoryRe\n\t\t\t\t+ nodeRe\n\t\t\t\t+ objectRe\n\t\t\t\t+ propertyRe\n\t\t\t\t+ '$'\n\t\t\t);\n\n\t\t\tvar supportedObjectNames = [ 'material', 'materials', 'bones' ];\n\n\t\t\treturn function parseTrackName( trackName ) {\n\n\t\t\t\tvar matches = trackRe.exec( trackName );\n\n\t\t\t\tif ( ! matches ) {\n\n\t\t\t\t\tthrow new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );\n\n\t\t\t\t}\n\n\t\t\t\tvar results = {\n\t\t\t\t\t// directoryName: matches[ 1 ], // (tschw) currently unused\n\t\t\t\t\tnodeName: matches[ 2 ],\n\t\t\t\t\tobjectName: matches[ 3 ],\n\t\t\t\t\tobjectIndex: matches[ 4 ],\n\t\t\t\t\tpropertyName: matches[ 5 ], // required\n\t\t\t\t\tpropertyIndex: matches[ 6 ]\n\t\t\t\t};\n\n\t\t\t\tvar lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );\n\n\t\t\t\tif ( lastDot !== undefined && lastDot !== - 1 ) {\n\n\t\t\t\t\tvar objectName = results.nodeName.substring( lastDot + 1 );\n\n\t\t\t\t\t// Object names must be checked against a whitelist. Otherwise, there\n\t\t\t\t\t// is no way to parse 'foo.bar.baz': 'baz' must be a property, but\n\t\t\t\t\t// 'bar' could be the objectName, or part of a nodeName (which can\n\t\t\t\t\t// include '.' characters).\n\t\t\t\t\tif ( supportedObjectNames.indexOf( objectName ) !== - 1 ) {\n\n\t\t\t\t\t\tresults.nodeName = results.nodeName.substring( 0, lastDot );\n\t\t\t\t\t\tresults.objectName = objectName;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( results.propertyName === null || results.propertyName.length === 0 ) {\n\n\t\t\t\t\tthrow new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );\n\n\t\t\t\t}\n\n\t\t\t\treturn results;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tfindNode: function ( root, nodeName ) {\n\n\t\t\tif ( ! nodeName || nodeName === \"\" || nodeName === \"root\" || nodeName === \".\" || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {\n\n\t\t\t\treturn root;\n\n\t\t\t}\n\n\t\t\t// search into skeleton bones.\n\t\t\tif ( root.skeleton ) {\n\n\t\t\t\tvar bone = root.skeleton.getBoneByName( nodeName );\n\n\t\t\t\tif ( bone !== undefined ) {\n\n\t\t\t\t\treturn bone;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// search into node subtree.\n\t\t\tif ( root.children ) {\n\n\t\t\t\tvar searchNodeSubtree = function ( children ) {\n\n\t\t\t\t\tfor ( var i = 0; i < children.length; i ++ ) {\n\n\t\t\t\t\t\tvar childNode = children[ i ];\n\n\t\t\t\t\t\tif ( childNode.name === nodeName || childNode.uuid === nodeName ) {\n\n\t\t\t\t\t\t\treturn childNode;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar result = searchNodeSubtree( childNode.children );\n\n\t\t\t\t\t\tif ( result ) return result;\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t};\n\n\t\t\t\tvar subTreeNode = searchNodeSubtree( root.children );\n\n\t\t\t\tif ( subTreeNode ) {\n\n\t\t\t\t\treturn subTreeNode;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t}\n\n\t} );\n\n\tObject.assign( PropertyBinding.prototype, { // prototype, continued\n\n\t\t// these are used to \"bind\" a nonexistent property\n\t\t_getValue_unavailable: function () {},\n\t\t_setValue_unavailable: function () {},\n\n\t\tBindingType: {\n\t\t\tDirect: 0,\n\t\t\tEntireArray: 1,\n\t\t\tArrayElement: 2,\n\t\t\tHasFromToArray: 3\n\t\t},\n\n\t\tVersioning: {\n\t\t\tNone: 0,\n\t\t\tNeedsUpdate: 1,\n\t\t\tMatrixWorldNeedsUpdate: 2\n\t\t},\n\n\t\tGetterByBindingType: [\n\n\t\t\tfunction getValue_direct( buffer, offset ) {\n\n\t\t\t\tbuffer[ offset ] = this.node[ this.propertyName ];\n\n\t\t\t},\n\n\t\t\tfunction getValue_array( buffer, offset ) {\n\n\t\t\t\tvar source = this.resolvedProperty;\n\n\t\t\t\tfor ( var i = 0, n = source.length; i !== n; ++ i ) {\n\n\t\t\t\t\tbuffer[ offset ++ ] = source[ i ];\n\n\t\t\t\t}\n\n\t\t\t},\n\n\t\t\tfunction getValue_arrayElement( buffer, offset ) {\n\n\t\t\t\tbuffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];\n\n\t\t\t},\n\n\t\t\tfunction getValue_toArray( buffer, offset ) {\n\n\t\t\t\tthis.resolvedProperty.toArray( buffer, offset );\n\n\t\t\t}\n\n\t\t],\n\n\t\tSetterByBindingTypeAndVersioning: [\n\n\t\t\t[\n\t\t\t\t// Direct\n\n\t\t\t\tfunction setValue_direct( buffer, offset ) {\n\n\t\t\t\t\tthis.targetObject[ this.propertyName ] = buffer[ offset ];\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_direct_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.targetObject[ this.propertyName ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.targetObject[ this.propertyName ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// EntireArray\n\n\t\t\t\tfunction setValue_array( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_array_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// ArrayElement\n\n\t\t\t\tfunction setValue_arrayElement( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_arrayElement_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// HasToFromArray\n\n\t\t\t\tfunction setValue_fromArray( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_fromArray_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t]\n\n\t\t],\n\n\t\tgetValue: function getValue_unbound( targetArray, offset ) {\n\n\t\t\tthis.bind();\n\t\t\tthis.getValue( targetArray, offset );\n\n\t\t\t// Note: This class uses a State pattern on a per-method basis:\n\t\t\t// 'bind' sets 'this.getValue' / 'setValue' and shadows the\n\t\t\t// prototype version of these methods with one that represents\n\t\t\t// the bound state. When the property is not found, the methods\n\t\t\t// become no-ops.\n\n\t\t},\n\n\t\tsetValue: function getValue_unbound( sourceArray, offset ) {\n\n\t\t\tthis.bind();\n\t\t\tthis.setValue( sourceArray, offset );\n\n\t\t},\n\n\t\t// create getter / setter pair for a property in the scene graph\n\t\tbind: function () {\n\n\t\t\tvar targetObject = this.node,\n\t\t\t\tparsedPath = this.parsedPath,\n\n\t\t\t\tobjectName = parsedPath.objectName,\n\t\t\t\tpropertyName = parsedPath.propertyName,\n\t\t\t\tpropertyIndex = parsedPath.propertyIndex;\n\n\t\t\tif ( ! targetObject ) {\n\n\t\t\t\ttargetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;\n\n\t\t\t\tthis.node = targetObject;\n\n\t\t\t}\n\n\t\t\t// set fail state so we can just 'return' on error\n\t\t\tthis.getValue = this._getValue_unavailable;\n\t\t\tthis.setValue = this._setValue_unavailable;\n\n\t\t\t// ensure there is a value node\n\t\t\tif ( ! targetObject ) {\n\n\t\t\t\tconsole.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\\'t found.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( objectName ) {\n\n\t\t\t\tvar objectIndex = parsedPath.objectIndex;\n\n\t\t\t\t// special cases were we need to reach deeper into the hierarchy to get the face materials....\n\t\t\t\tswitch ( objectName ) {\n\n\t\t\t\t\tcase 'materials':\n\n\t\t\t\t\t\tif ( ! targetObject.material ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( ! targetObject.material.materials ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttargetObject = targetObject.material.materials;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'bones':\n\n\t\t\t\t\t\tif ( ! targetObject.skeleton ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// potential future optimization: skip this if propertyIndex is already an integer\n\t\t\t\t\t\t// and convert the integer string to a true integer.\n\n\t\t\t\t\t\ttargetObject = targetObject.skeleton.bones;\n\n\t\t\t\t\t\t// support resolving morphTarget names into indices.\n\t\t\t\t\t\tfor ( var i = 0; i < targetObject.length; i ++ ) {\n\n\t\t\t\t\t\t\tif ( targetObject[ i ].name === objectIndex ) {\n\n\t\t\t\t\t\t\t\tobjectIndex = i;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\n\t\t\t\t\t\tif ( targetObject[ objectName ] === undefined ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttargetObject = targetObject[ objectName ];\n\n\t\t\t\t}\n\n\n\t\t\t\tif ( objectIndex !== undefined ) {\n\n\t\t\t\t\tif ( targetObject[ objectIndex ] === undefined ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttargetObject = targetObject[ objectIndex ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// resolve property\n\t\t\tvar nodeProperty = targetObject[ propertyName ];\n\n\t\t\tif ( nodeProperty === undefined ) {\n\n\t\t\t\tvar nodeName = parsedPath.nodeName;\n\n\t\t\t\tconsole.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +\n\t\t\t\t\t'.' + propertyName + ' but it wasn\\'t found.', targetObject );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t// determine versioning scheme\n\t\t\tvar versioning = this.Versioning.None;\n\n\t\t\tif ( targetObject.needsUpdate !== undefined ) { // material\n\n\t\t\t\tversioning = this.Versioning.NeedsUpdate;\n\t\t\t\tthis.targetObject = targetObject;\n\n\t\t\t} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform\n\n\t\t\t\tversioning = this.Versioning.MatrixWorldNeedsUpdate;\n\t\t\t\tthis.targetObject = targetObject;\n\n\t\t\t}\n\n\t\t\t// determine how the property gets bound\n\t\t\tvar bindingType = this.BindingType.Direct;\n\n\t\t\tif ( propertyIndex !== undefined ) {\n\n\t\t\t\t// access a sub element of the property array (only primitives are supported right now)\n\n\t\t\t\tif ( propertyName === \"morphTargetInfluences\" ) {\n\n\t\t\t\t\t// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.\n\n\t\t\t\t\t// support resolving morphTarget names into indices.\n\t\t\t\t\tif ( ! targetObject.geometry ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( targetObject.geometry.isBufferGeometry ) {\n\n\t\t\t\t\t\tif ( ! targetObject.geometry.morphAttributes ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {\n\n\t\t\t\t\t\t\tif ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {\n\n\t\t\t\t\t\t\t\tpropertyIndex = i;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( ! targetObject.geometry.morphTargets ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {\n\n\t\t\t\t\t\t\tif ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {\n\n\t\t\t\t\t\t\t\tpropertyIndex = i;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tbindingType = this.BindingType.ArrayElement;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\t\t\t\tthis.propertyIndex = propertyIndex;\n\n\t\t\t} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {\n\n\t\t\t\t// must use copy for Object3D.Euler/Quaternion\n\n\t\t\t\tbindingType = this.BindingType.HasFromToArray;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\n\t\t\t} else if ( Array.isArray( nodeProperty ) ) {\n\n\t\t\t\tbindingType = this.BindingType.EntireArray;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\n\t\t\t} else {\n\n\t\t\t\tthis.propertyName = propertyName;\n\n\t\t\t}\n\n\t\t\t// select getter / setter\n\t\t\tthis.getValue = this.GetterByBindingType[ bindingType ];\n\t\t\tthis.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];\n\n\t\t},\n\n\t\tunbind: function () {\n\n\t\t\tthis.node = null;\n\n\t\t\t// back to the prototype version of getValue / setValue\n\t\t\t// note: avoiding to mutate the shape of 'this' via 'delete'\n\t\t\tthis.getValue = this._getValue_unbound;\n\t\t\tthis.setValue = this._setValue_unbound;\n\n\t\t}\n\n\t} );\n\n\t//!\\ DECLARE ALIAS AFTER assign prototype !\n\tObject.assign( PropertyBinding.prototype, {\n\n\t\t// initial state of these methods that calls 'bind'\n\t\t_getValue_unbound: PropertyBinding.prototype.getValue,\n\t\t_setValue_unbound: PropertyBinding.prototype.setValue,\n\n\t} );\n\n\t/**\n\t *\n\t * A group of objects that receives a shared animation state.\n\t *\n\t * Usage:\n\t *\n\t * \t-\tAdd objects you would otherwise pass as 'root' to the\n\t * \t\tconstructor or the .clipAction method of AnimationMixer.\n\t *\n\t * \t-\tInstead pass this object as 'root'.\n\t *\n\t * \t-\tYou can also add and remove objects later when the mixer\n\t * \t\tis running.\n\t *\n\t * Note:\n\t *\n\t * \tObjects of this class appear as one object to the mixer,\n\t * \tso cache control of the individual objects must be done\n\t * \ton the group.\n\t *\n\t * Limitation:\n\t *\n\t * \t- \tThe animated properties must be compatible among the\n\t * \t\tall objects in the group.\n\t *\n\t * -\tA single property can either be controlled through a\n\t * \ttarget group or directly, but not both.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction AnimationObjectGroup() {\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\t// cached objects followed by the active ones\n\t\tthis._objects = Array.prototype.slice.call( arguments );\n\n\t\tthis.nCachedObjects_ = 0;\t\t\t// threshold\n\t\t// note: read by PropertyBinding.Composite\n\n\t\tvar indices = {};\n\t\tthis._indicesByUUID = indices;\t\t// for bookkeeping\n\n\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\tindices[ arguments[ i ].uuid ] = i;\n\n\t\t}\n\n\t\tthis._paths = [];\t\t\t\t\t// inside: string\n\t\tthis._parsedPaths = [];\t\t\t\t// inside: { we don't care, here }\n\t\tthis._bindings = []; \t\t\t\t// inside: Array< PropertyBinding >\n\t\tthis._bindingsIndicesByPath = {}; \t// inside: indices in these arrays\n\n\t\tvar scope = this;\n\n\t\tthis.stats = {\n\n\t\t\tobjects: {\n\t\t\t\tget total() {\n\n\t\t\t\t\treturn scope._objects.length;\n\n\t\t\t\t},\n\t\t\t\tget inUse() {\n\n\t\t\t\t\treturn this.total - scope.nCachedObjects_;\n\n\t\t\t\t}\n\t\t\t},\n\t\t\tget bindingsPerObject() {\n\n\t\t\t\treturn scope._bindings.length;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\tObject.assign( AnimationObjectGroup.prototype, {\n\n\t\tisAnimationObjectGroup: true,\n\n\t\tadd: function () {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tpaths = this._paths,\n\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length,\n\t\t\t\tknownObject = undefined;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index === undefined ) {\n\n\t\t\t\t\t// unknown object -> add it to the ACTIVE region\n\n\t\t\t\t\tindex = nObjects ++;\n\t\t\t\t\tindicesByUUID[ uuid ] = index;\n\t\t\t\t\tobjects.push( object );\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tbindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( index < nCachedObjects ) {\n\n\t\t\t\t\tknownObject = objects[ index ];\n\n\t\t\t\t\t// move existing object to the ACTIVE region\n\n\t\t\t\t\tvar firstActiveIndex = -- nCachedObjects,\n\t\t\t\t\t\tlastCachedObject = objects[ firstActiveIndex ];\n\n\t\t\t\t\tindicesByUUID[ lastCachedObject.uuid ] = index;\n\t\t\t\t\tobjects[ index ] = lastCachedObject;\n\n\t\t\t\t\tindicesByUUID[ uuid ] = firstActiveIndex;\n\t\t\t\t\tobjects[ firstActiveIndex ] = object;\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\tlastCached = bindingsForPath[ firstActiveIndex ],\n\t\t\t\t\t\t\tbinding = bindingsForPath[ index ];\n\n\t\t\t\t\t\tbindingsForPath[ index ] = lastCached;\n\n\t\t\t\t\t\tif ( binding === undefined ) {\n\n\t\t\t\t\t\t\t// since we do not bother to create new bindings\n\t\t\t\t\t\t\t// for objects that are cached, the binding may\n\t\t\t\t\t\t\t// or may not exist\n\n\t\t\t\t\t\t\tbinding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbindingsForPath[ firstActiveIndex ] = binding;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( objects[ index ] !== knownObject ) {\n\n\t\t\t\t\tconsole.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +\n\t\t\t\t\t\t\t'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );\n\n\t\t\t\t} // else the object is already where we want it to be\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\tremove: function () {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index !== undefined && index >= nCachedObjects ) {\n\n\t\t\t\t\t// move existing object into the CACHED region\n\n\t\t\t\t\tvar lastCachedIndex = nCachedObjects ++,\n\t\t\t\t\t\tfirstActiveObject = objects[ lastCachedIndex ];\n\n\t\t\t\t\tindicesByUUID[ firstActiveObject.uuid ] = index;\n\t\t\t\t\tobjects[ index ] = firstActiveObject;\n\n\t\t\t\t\tindicesByUUID[ uuid ] = lastCachedIndex;\n\t\t\t\t\tobjects[ lastCachedIndex ] = object;\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\tfirstActive = bindingsForPath[ lastCachedIndex ],\n\t\t\t\t\t\t\tbinding = bindingsForPath[ index ];\n\n\t\t\t\t\t\tbindingsForPath[ index ] = firstActive;\n\t\t\t\t\t\tbindingsForPath[ lastCachedIndex ] = binding;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\t// remove & forget\n\t\tuncache: function () {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index !== undefined ) {\n\n\t\t\t\t\tdelete indicesByUUID[ uuid ];\n\n\t\t\t\t\tif ( index < nCachedObjects ) {\n\n\t\t\t\t\t\t// object is cached, shrink the CACHED region\n\n\t\t\t\t\t\tvar firstActiveIndex = -- nCachedObjects,\n\t\t\t\t\t\t\tlastCachedObject = objects[ firstActiveIndex ],\n\t\t\t\t\t\t\tlastIndex = -- nObjects,\n\t\t\t\t\t\t\tlastObject = objects[ lastIndex ];\n\n\t\t\t\t\t\t// last cached object takes this object's place\n\t\t\t\t\t\tindicesByUUID[ lastCachedObject.uuid ] = index;\n\t\t\t\t\t\tobjects[ index ] = lastCachedObject;\n\n\t\t\t\t\t\t// last object goes to the activated slot and pop\n\t\t\t\t\t\tindicesByUUID[ lastObject.uuid ] = firstActiveIndex;\n\t\t\t\t\t\tobjects[ firstActiveIndex ] = lastObject;\n\t\t\t\t\t\tobjects.pop();\n\n\t\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\t\tlastCached = bindingsForPath[ firstActiveIndex ],\n\t\t\t\t\t\t\t\tlast = bindingsForPath[ lastIndex ];\n\n\t\t\t\t\t\t\tbindingsForPath[ index ] = lastCached;\n\t\t\t\t\t\t\tbindingsForPath[ firstActiveIndex ] = last;\n\t\t\t\t\t\t\tbindingsForPath.pop();\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// object is active, just swap with the last and pop\n\n\t\t\t\t\t\tvar lastIndex = -- nObjects,\n\t\t\t\t\t\t\tlastObject = objects[ lastIndex ];\n\n\t\t\t\t\t\tindicesByUUID[ lastObject.uuid ] = index;\n\t\t\t\t\t\tobjects[ index ] = lastObject;\n\t\t\t\t\t\tobjects.pop();\n\n\t\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\t\tvar bindingsForPath = bindings[ j ];\n\n\t\t\t\t\t\t\tbindingsForPath[ index ] = bindingsForPath[ lastIndex ];\n\t\t\t\t\t\t\tbindingsForPath.pop();\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} // cached or active\n\n\t\t\t\t} // if object is known\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\t// Internal interface used by befriended PropertyBinding.Composite:\n\n\t\tsubscribe_: function ( path, parsedPath ) {\n\n\t\t\t// returns an array of bindings for the given path that is changed\n\t\t\t// according to the contained objects in the group\n\n\t\t\tvar indicesByPath = this._bindingsIndicesByPath,\n\t\t\t\tindex = indicesByPath[ path ],\n\t\t\t\tbindings = this._bindings;\n\n\t\t\tif ( index !== undefined ) return bindings[ index ];\n\n\t\t\tvar paths = this._paths,\n\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\tobjects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tbindingsForPath = new Array( nObjects );\n\n\t\t\tindex = bindings.length;\n\n\t\t\tindicesByPath[ path ] = index;\n\n\t\t\tpaths.push( path );\n\t\t\tparsedPaths.push( parsedPath );\n\t\t\tbindings.push( bindingsForPath );\n\n\t\t\tfor ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = objects[ i ];\n\t\t\t\tbindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );\n\n\t\t\t}\n\n\t\t\treturn bindingsForPath;\n\n\t\t},\n\n\t\tunsubscribe_: function ( path ) {\n\n\t\t\t// tells the group to forget about a property path and no longer\n\t\t\t// update the array previously obtained with 'subscribe_'\n\n\t\t\tvar indicesByPath = this._bindingsIndicesByPath,\n\t\t\t\tindex = indicesByPath[ path ];\n\n\t\t\tif ( index !== undefined ) {\n\n\t\t\t\tvar paths = this._paths,\n\t\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\t\tbindings = this._bindings,\n\t\t\t\t\tlastBindingsIndex = bindings.length - 1,\n\t\t\t\t\tlastBindings = bindings[ lastBindingsIndex ],\n\t\t\t\t\tlastBindingsPath = path[ lastBindingsIndex ];\n\n\t\t\t\tindicesByPath[ lastBindingsPath ] = index;\n\n\t\t\t\tbindings[ index ] = lastBindings;\n\t\t\t\tbindings.pop();\n\n\t\t\t\tparsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];\n\t\t\t\tparsedPaths.pop();\n\n\t\t\t\tpaths[ index ] = paths[ lastBindingsIndex ];\n\t\t\t\tpaths.pop();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Action provided by AnimationMixer for scheduling clip playback on specific\n\t * objects.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t *\n\t */\n\n\tfunction AnimationAction( mixer, clip, localRoot ) {\n\n\t\tthis._mixer = mixer;\n\t\tthis._clip = clip;\n\t\tthis._localRoot = localRoot || null;\n\n\t\tvar tracks = clip.tracks,\n\t\t\tnTracks = tracks.length,\n\t\t\tinterpolants = new Array( nTracks );\n\n\t\tvar interpolantSettings = {\n\t\t\tendingStart: ZeroCurvatureEnding,\n\t\t\tendingEnd: ZeroCurvatureEnding\n\t\t};\n\n\t\tfor ( var i = 0; i !== nTracks; ++ i ) {\n\n\t\t\tvar interpolant = tracks[ i ].createInterpolant( null );\n\t\t\tinterpolants[ i ] = interpolant;\n\t\t\tinterpolant.settings = interpolantSettings;\n\n\t\t}\n\n\t\tthis._interpolantSettings = interpolantSettings;\n\n\t\tthis._interpolants = interpolants;\t// bound by the mixer\n\n\t\t// inside: PropertyMixer (managed by the mixer)\n\t\tthis._propertyBindings = new Array( nTracks );\n\n\t\tthis._cacheIndex = null;\t\t\t// for the memory manager\n\t\tthis._byClipCacheIndex = null;\t\t// for the memory manager\n\n\t\tthis._timeScaleInterpolant = null;\n\t\tthis._weightInterpolant = null;\n\n\t\tthis.loop = LoopRepeat;\n\t\tthis._loopCount = - 1;\n\n\t\t// global mixer time when the action is to be started\n\t\t// it's set back to 'null' upon start of the action\n\t\tthis._startTime = null;\n\n\t\t// scaled local time of the action\n\t\t// gets clamped or wrapped to 0..clip.duration according to loop\n\t\tthis.time = 0;\n\n\t\tthis.timeScale = 1;\n\t\tthis._effectiveTimeScale = 1;\n\n\t\tthis.weight = 1;\n\t\tthis._effectiveWeight = 1;\n\n\t\tthis.repetitions = Infinity; \t\t// no. of repetitions when looping\n\n\t\tthis.paused = false;\t\t\t\t// true -> zero effective time scale\n\t\tthis.enabled = true;\t\t\t\t// false -> zero effective weight\n\n\t\tthis.clampWhenFinished \t= false;\t// keep feeding the last frame?\n\n\t\tthis.zeroSlopeAtStart \t= true;\t\t// for smooth interpolation w/o separate\n\t\tthis.zeroSlopeAtEnd\t\t= true;\t\t// clips for start, loop and end\n\n\t}\n\n\tObject.assign( AnimationAction.prototype, {\n\n\t\t// State & Scheduling\n\n\t\tplay: function () {\n\n\t\t\tthis._mixer._activateAction( this );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tthis._mixer._deactivateAction( this );\n\n\t\t\treturn this.reset();\n\n\t\t},\n\n\t\treset: function () {\n\n\t\t\tthis.paused = false;\n\t\t\tthis.enabled = true;\n\n\t\t\tthis.time = 0;\t\t\t// restart clip\n\t\t\tthis._loopCount = - 1;\t// forget previous loops\n\t\t\tthis._startTime = null;\t// forget scheduling\n\n\t\t\treturn this.stopFading().stopWarping();\n\n\t\t},\n\n\t\tisRunning: function () {\n\n\t\t\treturn this.enabled && ! this.paused && this.timeScale !== 0 &&\n\t\t\t\t\tthis._startTime === null && this._mixer._isActiveAction( this );\n\n\t\t},\n\n\t\t// return true when play has been called\n\t\tisScheduled: function () {\n\n\t\t\treturn this._mixer._isActiveAction( this );\n\n\t\t},\n\n\t\tstartAt: function ( time ) {\n\n\t\t\tthis._startTime = time;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetLoop: function ( mode, repetitions ) {\n\n\t\t\tthis.loop = mode;\n\t\t\tthis.repetitions = repetitions;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Weight\n\n\t\t// set the weight stopping any scheduled fading\n\t\t// although .enabled = false yields an effective weight of zero, this\n\t\t// method does *not* change .enabled, because it would be confusing\n\t\tsetEffectiveWeight: function ( weight ) {\n\n\t\t\tthis.weight = weight;\n\n\t\t\t// note: same logic as when updated at runtime\n\t\t\tthis._effectiveWeight = this.enabled ? weight : 0;\n\n\t\t\treturn this.stopFading();\n\n\t\t},\n\n\t\t// return the weight considering fading and .enabled\n\t\tgetEffectiveWeight: function () {\n\n\t\t\treturn this._effectiveWeight;\n\n\t\t},\n\n\t\tfadeIn: function ( duration ) {\n\n\t\t\treturn this._scheduleFading( duration, 0, 1 );\n\n\t\t},\n\n\t\tfadeOut: function ( duration ) {\n\n\t\t\treturn this._scheduleFading( duration, 1, 0 );\n\n\t\t},\n\n\t\tcrossFadeFrom: function ( fadeOutAction, duration, warp ) {\n\n\t\t\tfadeOutAction.fadeOut( duration );\n\t\t\tthis.fadeIn( duration );\n\n\t\t\tif ( warp ) {\n\n\t\t\t\tvar fadeInDuration = this._clip.duration,\n\t\t\t\t\tfadeOutDuration = fadeOutAction._clip.duration,\n\n\t\t\t\t\tstartEndRatio = fadeOutDuration / fadeInDuration,\n\t\t\t\t\tendStartRatio = fadeInDuration / fadeOutDuration;\n\n\t\t\t\tfadeOutAction.warp( 1.0, startEndRatio, duration );\n\t\t\t\tthis.warp( endStartRatio, 1.0, duration );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcrossFadeTo: function ( fadeInAction, duration, warp ) {\n\n\t\t\treturn fadeInAction.crossFadeFrom( this, duration, warp );\n\n\t\t},\n\n\t\tstopFading: function () {\n\n\t\t\tvar weightInterpolant = this._weightInterpolant;\n\n\t\t\tif ( weightInterpolant !== null ) {\n\n\t\t\t\tthis._weightInterpolant = null;\n\t\t\t\tthis._mixer._takeBackControlInterpolant( weightInterpolant );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Time Scale Control\n\n\t\t// set the time scale stopping any scheduled warping\n\t\t// although .paused = true yields an effective time scale of zero, this\n\t\t// method does *not* change .paused, because it would be confusing\n\t\tsetEffectiveTimeScale: function ( timeScale ) {\n\n\t\t\tthis.timeScale = timeScale;\n\t\t\tthis._effectiveTimeScale = this.paused ? 0 : timeScale;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\t// return the time scale considering warping and .paused\n\t\tgetEffectiveTimeScale: function () {\n\n\t\t\treturn this._effectiveTimeScale;\n\n\t\t},\n\n\t\tsetDuration: function ( duration ) {\n\n\t\t\tthis.timeScale = this._clip.duration / duration;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\tsyncWith: function ( action ) {\n\n\t\t\tthis.time = action.time;\n\t\t\tthis.timeScale = action.timeScale;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\thalt: function ( duration ) {\n\n\t\t\treturn this.warp( this._effectiveTimeScale, 0, duration );\n\n\t\t},\n\n\t\twarp: function ( startTimeScale, endTimeScale, duration ) {\n\n\t\t\tvar mixer = this._mixer, now = mixer.time,\n\t\t\t\tinterpolant = this._timeScaleInterpolant,\n\n\t\t\t\ttimeScale = this.timeScale;\n\n\t\t\tif ( interpolant === null ) {\n\n\t\t\t\tinterpolant = mixer._lendControlInterpolant();\n\t\t\t\tthis._timeScaleInterpolant = interpolant;\n\n\t\t\t}\n\n\t\t\tvar times = interpolant.parameterPositions,\n\t\t\t\tvalues = interpolant.sampleValues;\n\n\t\t\ttimes[ 0 ] = now;\n\t\t\ttimes[ 1 ] = now + duration;\n\n\t\t\tvalues[ 0 ] = startTimeScale / timeScale;\n\t\t\tvalues[ 1 ] = endTimeScale / timeScale;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstopWarping: function () {\n\n\t\t\tvar timeScaleInterpolant = this._timeScaleInterpolant;\n\n\t\t\tif ( timeScaleInterpolant !== null ) {\n\n\t\t\t\tthis._timeScaleInterpolant = null;\n\t\t\t\tthis._mixer._takeBackControlInterpolant( timeScaleInterpolant );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Object Accessors\n\n\t\tgetMixer: function () {\n\n\t\t\treturn this._mixer;\n\n\t\t},\n\n\t\tgetClip: function () {\n\n\t\t\treturn this._clip;\n\n\t\t},\n\n\t\tgetRoot: function () {\n\n\t\t\treturn this._localRoot || this._mixer._root;\n\n\t\t},\n\n\t\t// Interna\n\n\t\t_update: function ( time, deltaTime, timeDirection, accuIndex ) {\n\n\t\t\t// called by the mixer\n\n\t\t\tif ( ! this.enabled ) {\n\n\t\t\t\t// call ._updateWeight() to update ._effectiveWeight\n\n\t\t\t\tthis._updateWeight( time );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar startTime = this._startTime;\n\n\t\t\tif ( startTime !== null ) {\n\n\t\t\t\t// check for scheduled start of action\n\n\t\t\t\tvar timeRunning = ( time - startTime ) * timeDirection;\n\t\t\t\tif ( timeRunning < 0 || timeDirection === 0 ) {\n\n\t\t\t\t\treturn; // yet to come / don't decide when delta = 0\n\n\t\t\t\t}\n\n\t\t\t\t// start\n\n\t\t\t\tthis._startTime = null; // unschedule\n\t\t\t\tdeltaTime = timeDirection * timeRunning;\n\n\t\t\t}\n\n\t\t\t// apply time scale and advance time\n\n\t\t\tdeltaTime *= this._updateTimeScale( time );\n\t\t\tvar clipTime = this._updateTime( deltaTime );\n\n\t\t\t// note: _updateTime may disable the action resulting in\n\t\t\t// an effective weight of 0\n\n\t\t\tvar weight = this._updateWeight( time );\n\n\t\t\tif ( weight > 0 ) {\n\n\t\t\t\tvar interpolants = this._interpolants;\n\t\t\t\tvar propertyMixers = this._propertyBindings;\n\n\t\t\t\tfor ( var j = 0, m = interpolants.length; j !== m; ++ j ) {\n\n\t\t\t\t\tinterpolants[ j ].evaluate( clipTime );\n\t\t\t\t\tpropertyMixers[ j ].accumulate( accuIndex, weight );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_updateWeight: function ( time ) {\n\n\t\t\tvar weight = 0;\n\n\t\t\tif ( this.enabled ) {\n\n\t\t\t\tweight = this.weight;\n\t\t\t\tvar interpolant = this._weightInterpolant;\n\n\t\t\t\tif ( interpolant !== null ) {\n\n\t\t\t\t\tvar interpolantValue = interpolant.evaluate( time )[ 0 ];\n\n\t\t\t\t\tweight *= interpolantValue;\n\n\t\t\t\t\tif ( time > interpolant.parameterPositions[ 1 ] ) {\n\n\t\t\t\t\t\tthis.stopFading();\n\n\t\t\t\t\t\tif ( interpolantValue === 0 ) {\n\n\t\t\t\t\t\t\t// faded out, disable\n\t\t\t\t\t\t\tthis.enabled = false;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis._effectiveWeight = weight;\n\t\t\treturn weight;\n\n\t\t},\n\n\t\t_updateTimeScale: function ( time ) {\n\n\t\t\tvar timeScale = 0;\n\n\t\t\tif ( ! this.paused ) {\n\n\t\t\t\ttimeScale = this.timeScale;\n\n\t\t\t\tvar interpolant = this._timeScaleInterpolant;\n\n\t\t\t\tif ( interpolant !== null ) {\n\n\t\t\t\t\tvar interpolantValue = interpolant.evaluate( time )[ 0 ];\n\n\t\t\t\t\ttimeScale *= interpolantValue;\n\n\t\t\t\t\tif ( time > interpolant.parameterPositions[ 1 ] ) {\n\n\t\t\t\t\t\tthis.stopWarping();\n\n\t\t\t\t\t\tif ( timeScale === 0 ) {\n\n\t\t\t\t\t\t\t// motion has halted, pause\n\t\t\t\t\t\t\tthis.paused = true;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// warp done - apply final time scale\n\t\t\t\t\t\t\tthis.timeScale = timeScale;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis._effectiveTimeScale = timeScale;\n\t\t\treturn timeScale;\n\n\t\t},\n\n\t\t_updateTime: function ( deltaTime ) {\n\n\t\t\tvar time = this.time + deltaTime;\n\t\t\tvar duration = this._clip.duration;\n\t\t\tvar loop = this.loop;\n\t\t\tvar loopCount = this._loopCount;\n\n\t\t\tvar pingPong = ( loop === LoopPingPong );\n\n\t\t\tif ( deltaTime === 0 ) {\n\n\t\t\t\tif ( loopCount === - 1 ) return time;\n\n\t\t\t\treturn ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time;\n\n\t\t\t}\n\n\t\t\tif ( loop === LoopOnce ) {\n\n\t\t\t\tif ( loopCount === - 1 ) {\n\n\t\t\t\t\t// just started\n\n\t\t\t\t\tthis._loopCount = 0;\n\t\t\t\t\tthis._setEndings( true, true, false );\n\n\t\t\t\t}\n\n\t\t\t\thandle_stop: {\n\n\t\t\t\t\tif ( time >= duration ) {\n\n\t\t\t\t\t\ttime = duration;\n\n\t\t\t\t\t} else if ( time < 0 ) {\n\n\t\t\t\t\t\ttime = 0;\n\n\t\t\t\t\t} else break handle_stop;\n\n\t\t\t\t\tif ( this.clampWhenFinished ) this.paused = true;\n\t\t\t\t\telse this.enabled = false;\n\n\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\ttype: 'finished', action: this,\n\t\t\t\t\t\tdirection: deltaTime < 0 ? - 1 : 1\n\t\t\t\t\t} );\n\n\t\t\t\t}\n\n\t\t\t} else { // repetitive Repeat or PingPong\n\n\t\t\t\tif ( loopCount === - 1 ) {\n\n\t\t\t\t\t// just started\n\n\t\t\t\t\tif ( deltaTime >= 0 ) {\n\n\t\t\t\t\t\tloopCount = 0;\n\n\t\t\t\t\t\tthis._setEndings( true, this.repetitions === 0, pingPong );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// when looping in reverse direction, the initial\n\t\t\t\t\t\t// transition through zero counts as a repetition,\n\t\t\t\t\t\t// so leave loopCount at -1\n\n\t\t\t\t\t\tthis._setEndings( this.repetitions === 0, true, pingPong );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( time >= duration || time < 0 ) {\n\n\t\t\t\t\t// wrap around\n\n\t\t\t\t\tvar loopDelta = Math.floor( time / duration ); // signed\n\t\t\t\t\ttime -= duration * loopDelta;\n\n\t\t\t\t\tloopCount += Math.abs( loopDelta );\n\n\t\t\t\t\tvar pending = this.repetitions - loopCount;\n\n\t\t\t\t\tif ( pending <= 0 ) {\n\n\t\t\t\t\t\t// have to stop (switch state, clamp time, fire event)\n\n\t\t\t\t\t\tif ( this.clampWhenFinished ) this.paused = true;\n\t\t\t\t\t\telse this.enabled = false;\n\n\t\t\t\t\t\ttime = deltaTime > 0 ? duration : 0;\n\n\t\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\t\ttype: 'finished', action: this,\n\t\t\t\t\t\t\tdirection: deltaTime > 0 ? 1 : - 1\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// keep running\n\n\t\t\t\t\t\tif ( pending === 1 ) {\n\n\t\t\t\t\t\t\t// entering the last round\n\n\t\t\t\t\t\t\tvar atStart = deltaTime < 0;\n\t\t\t\t\t\t\tthis._setEndings( atStart, ! atStart, pingPong );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tthis._setEndings( false, false, pingPong );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tthis._loopCount = loopCount;\n\n\t\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\t\ttype: 'loop', action: this, loopDelta: loopDelta\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( pingPong && ( loopCount & 1 ) === 1 ) {\n\n\t\t\t\t\t// invert time for the \"pong round\"\n\n\t\t\t\t\tthis.time = time;\n\t\t\t\t\treturn duration - time;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.time = time;\n\t\t\treturn time;\n\n\t\t},\n\n\t\t_setEndings: function ( atStart, atEnd, pingPong ) {\n\n\t\t\tvar settings = this._interpolantSettings;\n\n\t\t\tif ( pingPong ) {\n\n\t\t\t\tsettings.endingStart \t= ZeroSlopeEnding;\n\t\t\t\tsettings.endingEnd\t\t= ZeroSlopeEnding;\n\n\t\t\t} else {\n\n\t\t\t\t// assuming for LoopOnce atStart == atEnd == true\n\n\t\t\t\tif ( atStart ) {\n\n\t\t\t\t\tsettings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsettings.endingStart = WrapAroundEnding;\n\n\t\t\t\t}\n\n\t\t\t\tif ( atEnd ) {\n\n\t\t\t\t\tsettings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsettings.endingEnd \t = WrapAroundEnding;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_scheduleFading: function ( duration, weightNow, weightThen ) {\n\n\t\t\tvar mixer = this._mixer, now = mixer.time,\n\t\t\t\tinterpolant = this._weightInterpolant;\n\n\t\t\tif ( interpolant === null ) {\n\n\t\t\t\tinterpolant = mixer._lendControlInterpolant();\n\t\t\t\tthis._weightInterpolant = interpolant;\n\n\t\t\t}\n\n\t\t\tvar times = interpolant.parameterPositions,\n\t\t\t\tvalues = interpolant.sampleValues;\n\n\t\t\ttimes[ 0 ] = now; \t\t\t\tvalues[ 0 ] = weightNow;\n\t\t\ttimes[ 1 ] = now + duration;\tvalues[ 1 ] = weightThen;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Player for AnimationClips.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction AnimationMixer( root ) {\n\n\t\tthis._root = root;\n\t\tthis._initMemoryManager();\n\t\tthis._accuIndex = 0;\n\n\t\tthis.time = 0;\n\n\t\tthis.timeScale = 1.0;\n\n\t}\n\n\tAnimationMixer.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {\n\n\t\tconstructor: AnimationMixer,\n\n\t\t_bindAction: function ( action, prototypeAction ) {\n\n\t\t\tvar root = action._localRoot || this._root,\n\t\t\t\ttracks = action._clip.tracks,\n\t\t\t\tnTracks = tracks.length,\n\t\t\t\tbindings = action._propertyBindings,\n\t\t\t\tinterpolants = action._interpolants,\n\t\t\t\trootUuid = root.uuid,\n\t\t\t\tbindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingsByName = bindingsByRoot[ rootUuid ];\n\n\t\t\tif ( bindingsByName === undefined ) {\n\n\t\t\t\tbindingsByName = {};\n\t\t\t\tbindingsByRoot[ rootUuid ] = bindingsByName;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i !== nTracks; ++ i ) {\n\n\t\t\t\tvar track = tracks[ i ],\n\t\t\t\t\ttrackName = track.name,\n\t\t\t\t\tbinding = bindingsByName[ trackName ];\n\n\t\t\t\tif ( binding !== undefined ) {\n\n\t\t\t\t\tbindings[ i ] = binding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tbinding = bindings[ i ];\n\n\t\t\t\t\tif ( binding !== undefined ) {\n\n\t\t\t\t\t\t// existing binding, make sure the cache knows\n\n\t\t\t\t\t\tif ( binding._cacheIndex === null ) {\n\n\t\t\t\t\t\t\t++ binding.referenceCount;\n\t\t\t\t\t\t\tthis._addInactiveBinding( binding, rootUuid, trackName );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar path = prototypeAction && prototypeAction.\n\t\t\t\t\t\t_propertyBindings[ i ].binding.parsedPath;\n\n\t\t\t\t\tbinding = new PropertyMixer(\n\t\t\t\t\t\tPropertyBinding.create( root, trackName, path ),\n\t\t\t\t\t\ttrack.ValueTypeName, track.getValueSize() );\n\n\t\t\t\t\t++ binding.referenceCount;\n\t\t\t\t\tthis._addInactiveBinding( binding, rootUuid, trackName );\n\n\t\t\t\t\tbindings[ i ] = binding;\n\n\t\t\t\t}\n\n\t\t\t\tinterpolants[ i ].resultBuffer = binding.buffer;\n\n\t\t\t}\n\n\t\t},\n\n\t\t_activateAction: function ( action ) {\n\n\t\t\tif ( ! this._isActiveAction( action ) ) {\n\n\t\t\t\tif ( action._cacheIndex === null ) {\n\n\t\t\t\t\t// this action has been forgotten by the cache, but the user\n\t\t\t\t\t// appears to be still using it -> rebind\n\n\t\t\t\t\tvar rootUuid = ( action._localRoot || this._root ).uuid,\n\t\t\t\t\t\tclipUuid = action._clip.uuid,\n\t\t\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ];\n\n\t\t\t\t\tthis._bindAction( action,\n\t\t\t\t\t\tactionsForClip && actionsForClip.knownActions[ 0 ] );\n\n\t\t\t\t\tthis._addInactiveAction( action, clipUuid, rootUuid );\n\n\t\t\t\t}\n\n\t\t\t\tvar bindings = action._propertyBindings;\n\n\t\t\t\t// increment reference counts / sort out state\n\t\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\t\tif ( binding.useCount ++ === 0 ) {\n\n\t\t\t\t\t\tthis._lendBinding( binding );\n\t\t\t\t\t\tbinding.saveOriginalState();\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis._lendAction( action );\n\n\t\t\t}\n\n\t\t},\n\n\t\t_deactivateAction: function ( action ) {\n\n\t\t\tif ( this._isActiveAction( action ) ) {\n\n\t\t\t\tvar bindings = action._propertyBindings;\n\n\t\t\t\t// decrement reference counts / sort out state\n\t\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\t\tif ( -- binding.useCount === 0 ) {\n\n\t\t\t\t\t\tbinding.restoreOriginalState();\n\t\t\t\t\t\tthis._takeBackBinding( binding );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis._takeBackAction( action );\n\n\t\t\t}\n\n\t\t},\n\n\t\t// Memory manager\n\n\t\t_initMemoryManager: function () {\n\n\t\t\tthis._actions = []; // 'nActiveActions' followed by inactive ones\n\t\t\tthis._nActiveActions = 0;\n\n\t\t\tthis._actionsByClip = {};\n\t\t\t// inside:\n\t\t\t// {\n\t\t\t// \t\tknownActions: Array< AnimationAction >\t- used as prototypes\n\t\t\t// \t\tactionByRoot: AnimationAction\t\t\t- lookup\n\t\t\t// }\n\n\n\t\t\tthis._bindings = []; // 'nActiveBindings' followed by inactive ones\n\t\t\tthis._nActiveBindings = 0;\n\n\t\t\tthis._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >\n\n\n\t\t\tthis._controlInterpolants = []; // same game as above\n\t\t\tthis._nActiveControlInterpolants = 0;\n\n\t\t\tvar scope = this;\n\n\t\t\tthis.stats = {\n\n\t\t\t\tactions: {\n\t\t\t\t\tget total() {\n\n\t\t\t\t\t\treturn scope._actions.length;\n\n\t\t\t\t\t},\n\t\t\t\t\tget inUse() {\n\n\t\t\t\t\t\treturn scope._nActiveActions;\n\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tbindings: {\n\t\t\t\t\tget total() {\n\n\t\t\t\t\t\treturn scope._bindings.length;\n\n\t\t\t\t\t},\n\t\t\t\t\tget inUse() {\n\n\t\t\t\t\t\treturn scope._nActiveBindings;\n\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tcontrolInterpolants: {\n\t\t\t\t\tget total() {\n\n\t\t\t\t\t\treturn scope._controlInterpolants.length;\n\n\t\t\t\t\t},\n\t\t\t\t\tget inUse() {\n\n\t\t\t\t\t\treturn scope._nActiveControlInterpolants;\n\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t},\n\n\t\t// Memory management for AnimationAction objects\n\n\t\t_isActiveAction: function ( action ) {\n\n\t\t\tvar index = action._cacheIndex;\n\t\t\treturn index !== null && index < this._nActiveActions;\n\n\t\t},\n\n\t\t_addInactiveAction: function ( action, clipUuid, rootUuid ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip === undefined ) {\n\n\t\t\t\tactionsForClip = {\n\n\t\t\t\t\tknownActions: [ action ],\n\t\t\t\t\tactionByRoot: {}\n\n\t\t\t\t};\n\n\t\t\t\taction._byClipCacheIndex = 0;\n\n\t\t\t\tactionsByClip[ clipUuid ] = actionsForClip;\n\n\t\t\t} else {\n\n\t\t\t\tvar knownActions = actionsForClip.knownActions;\n\n\t\t\t\taction._byClipCacheIndex = knownActions.length;\n\t\t\t\tknownActions.push( action );\n\n\t\t\t}\n\n\t\t\taction._cacheIndex = actions.length;\n\t\t\tactions.push( action );\n\n\t\t\tactionsForClip.actionByRoot[ rootUuid ] = action;\n\n\t\t},\n\n\t\t_removeInactiveAction: function ( action ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tlastInactiveAction = actions[ actions.length - 1 ],\n\t\t\t\tcacheIndex = action._cacheIndex;\n\n\t\t\tlastInactiveAction._cacheIndex = cacheIndex;\n\t\t\tactions[ cacheIndex ] = lastInactiveAction;\n\t\t\tactions.pop();\n\n\t\t\taction._cacheIndex = null;\n\n\n\t\t\tvar clipUuid = action._clip.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ],\n\t\t\t\tknownActionsForClip = actionsForClip.knownActions,\n\n\t\t\t\tlastKnownAction =\n\t\t\t\t\tknownActionsForClip[ knownActionsForClip.length - 1 ],\n\n\t\t\t\tbyClipCacheIndex = action._byClipCacheIndex;\n\n\t\t\tlastKnownAction._byClipCacheIndex = byClipCacheIndex;\n\t\t\tknownActionsForClip[ byClipCacheIndex ] = lastKnownAction;\n\t\t\tknownActionsForClip.pop();\n\n\t\t\taction._byClipCacheIndex = null;\n\n\n\t\t\tvar actionByRoot = actionsForClip.actionByRoot,\n\t\t\t\trootUuid = ( action._localRoot || this._root ).uuid;\n\n\t\t\tdelete actionByRoot[ rootUuid ];\n\n\t\t\tif ( knownActionsForClip.length === 0 ) {\n\n\t\t\t\tdelete actionsByClip[ clipUuid ];\n\n\t\t\t}\n\n\t\t\tthis._removeInactiveBindingsForAction( action );\n\n\t\t},\n\n\t\t_removeInactiveBindingsForAction: function ( action ) {\n\n\t\t\tvar bindings = action._propertyBindings;\n\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\tif ( -- binding.referenceCount === 0 ) {\n\n\t\t\t\t\tthis._removeInactiveBinding( binding );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_lendAction: function ( action ) {\n\n\t\t\t// [ active actions | inactive actions ]\n\t\t\t// [ active actions >| inactive actions ]\n\t\t\t// s a\n\t\t\t// <-swap->\n\t\t\t// a s\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tprevIndex = action._cacheIndex,\n\n\t\t\t\tlastActiveIndex = this._nActiveActions ++,\n\n\t\t\t\tfirstInactiveAction = actions[ lastActiveIndex ];\n\n\t\t\taction._cacheIndex = lastActiveIndex;\n\t\t\tactions[ lastActiveIndex ] = action;\n\n\t\t\tfirstInactiveAction._cacheIndex = prevIndex;\n\t\t\tactions[ prevIndex ] = firstInactiveAction;\n\n\t\t},\n\n\t\t_takeBackAction: function ( action ) {\n\n\t\t\t// [ active actions | inactive actions ]\n\t\t\t// [ active actions |< inactive actions ]\n\t\t\t// a s\n\t\t\t// <-swap->\n\t\t\t// s a\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tprevIndex = action._cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveActions,\n\n\t\t\t\tlastActiveAction = actions[ firstInactiveIndex ];\n\n\t\t\taction._cacheIndex = firstInactiveIndex;\n\t\t\tactions[ firstInactiveIndex ] = action;\n\n\t\t\tlastActiveAction._cacheIndex = prevIndex;\n\t\t\tactions[ prevIndex ] = lastActiveAction;\n\n\t\t},\n\n\t\t// Memory management for PropertyMixer objects\n\n\t\t_addInactiveBinding: function ( binding, rootUuid, trackName ) {\n\n\t\t\tvar bindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ],\n\n\t\t\t\tbindings = this._bindings;\n\n\t\t\tif ( bindingByName === undefined ) {\n\n\t\t\t\tbindingByName = {};\n\t\t\t\tbindingsByRoot[ rootUuid ] = bindingByName;\n\n\t\t\t}\n\n\t\t\tbindingByName[ trackName ] = binding;\n\n\t\t\tbinding._cacheIndex = bindings.length;\n\t\t\tbindings.push( binding );\n\n\t\t},\n\n\t\t_removeInactiveBinding: function ( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tpropBinding = binding.binding,\n\t\t\t\trootUuid = propBinding.rootNode.uuid,\n\t\t\t\ttrackName = propBinding.path,\n\t\t\t\tbindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ],\n\n\t\t\t\tlastInactiveBinding = bindings[ bindings.length - 1 ],\n\t\t\t\tcacheIndex = binding._cacheIndex;\n\n\t\t\tlastInactiveBinding._cacheIndex = cacheIndex;\n\t\t\tbindings[ cacheIndex ] = lastInactiveBinding;\n\t\t\tbindings.pop();\n\n\t\t\tdelete bindingByName[ trackName ];\n\n\t\t\tremove_empty_map: {\n\n\t\t\t\tfor ( var _ in bindingByName ) break remove_empty_map; // eslint-disable-line no-unused-vars\n\n\t\t\t\tdelete bindingsByRoot[ rootUuid ];\n\n\t\t\t}\n\n\t\t},\n\n\t\t_lendBinding: function ( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tprevIndex = binding._cacheIndex,\n\n\t\t\t\tlastActiveIndex = this._nActiveBindings ++,\n\n\t\t\t\tfirstInactiveBinding = bindings[ lastActiveIndex ];\n\n\t\t\tbinding._cacheIndex = lastActiveIndex;\n\t\t\tbindings[ lastActiveIndex ] = binding;\n\n\t\t\tfirstInactiveBinding._cacheIndex = prevIndex;\n\t\t\tbindings[ prevIndex ] = firstInactiveBinding;\n\n\t\t},\n\n\t\t_takeBackBinding: function ( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tprevIndex = binding._cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveBindings,\n\n\t\t\t\tlastActiveBinding = bindings[ firstInactiveIndex ];\n\n\t\t\tbinding._cacheIndex = firstInactiveIndex;\n\t\t\tbindings[ firstInactiveIndex ] = binding;\n\n\t\t\tlastActiveBinding._cacheIndex = prevIndex;\n\t\t\tbindings[ prevIndex ] = lastActiveBinding;\n\n\t\t},\n\n\n\t\t// Memory management of Interpolants for weight and time scale\n\n\t\t_lendControlInterpolant: function () {\n\n\t\t\tvar interpolants = this._controlInterpolants,\n\t\t\t\tlastActiveIndex = this._nActiveControlInterpolants ++,\n\t\t\t\tinterpolant = interpolants[ lastActiveIndex ];\n\n\t\t\tif ( interpolant === undefined ) {\n\n\t\t\t\tinterpolant = new LinearInterpolant(\n\t\t\t\t\tnew Float32Array( 2 ), new Float32Array( 2 ),\n\t\t\t\t\t1, this._controlInterpolantsResultBuffer );\n\n\t\t\t\tinterpolant.__cacheIndex = lastActiveIndex;\n\t\t\t\tinterpolants[ lastActiveIndex ] = interpolant;\n\n\t\t\t}\n\n\t\t\treturn interpolant;\n\n\t\t},\n\n\t\t_takeBackControlInterpolant: function ( interpolant ) {\n\n\t\t\tvar interpolants = this._controlInterpolants,\n\t\t\t\tprevIndex = interpolant.__cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveControlInterpolants,\n\n\t\t\t\tlastActiveInterpolant = interpolants[ firstInactiveIndex ];\n\n\t\t\tinterpolant.__cacheIndex = firstInactiveIndex;\n\t\t\tinterpolants[ firstInactiveIndex ] = interpolant;\n\n\t\t\tlastActiveInterpolant.__cacheIndex = prevIndex;\n\t\t\tinterpolants[ prevIndex ] = lastActiveInterpolant;\n\n\t\t},\n\n\t\t_controlInterpolantsResultBuffer: new Float32Array( 1 ),\n\n\t\t// return an action for a clip optionally using a custom root target\n\t\t// object (this method allocates a lot of dynamic memory in case a\n\t\t// previously unknown clip/root combination is specified)\n\t\tclipAction: function ( clip, optionalRoot ) {\n\n\t\t\tvar root = optionalRoot || this._root,\n\t\t\t\trootUuid = root.uuid,\n\n\t\t\t\tclipObject = typeof clip === 'string' ?\n\t\t\t\t\tAnimationClip.findByName( root, clip ) : clip,\n\n\t\t\t\tclipUuid = clipObject !== null ? clipObject.uuid : clip,\n\n\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ],\n\t\t\t\tprototypeAction = null;\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\tvar existingAction =\n\t\t\t\t\t\tactionsForClip.actionByRoot[ rootUuid ];\n\n\t\t\t\tif ( existingAction !== undefined ) {\n\n\t\t\t\t\treturn existingAction;\n\n\t\t\t\t}\n\n\t\t\t\t// we know the clip, so we don't have to parse all\n\t\t\t\t// the bindings again but can just copy\n\t\t\t\tprototypeAction = actionsForClip.knownActions[ 0 ];\n\n\t\t\t\t// also, take the clip from the prototype action\n\t\t\t\tif ( clipObject === null )\n\t\t\t\t\tclipObject = prototypeAction._clip;\n\n\t\t\t}\n\n\t\t\t// clip must be known when specified via string\n\t\t\tif ( clipObject === null ) return null;\n\n\t\t\t// allocate all resources required to run it\n\t\t\tvar newAction = new AnimationAction( this, clipObject, optionalRoot );\n\n\t\t\tthis._bindAction( newAction, prototypeAction );\n\n\t\t\t// and make the action known to the memory manager\n\t\t\tthis._addInactiveAction( newAction, clipUuid, rootUuid );\n\n\t\t\treturn newAction;\n\n\t\t},\n\n\t\t// get an existing action\n\t\texistingAction: function ( clip, optionalRoot ) {\n\n\t\t\tvar root = optionalRoot || this._root,\n\t\t\t\trootUuid = root.uuid,\n\n\t\t\t\tclipObject = typeof clip === 'string' ?\n\t\t\t\t\tAnimationClip.findByName( root, clip ) : clip,\n\n\t\t\t\tclipUuid = clipObject ? clipObject.uuid : clip,\n\n\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\treturn actionsForClip.actionByRoot[ rootUuid ] || null;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t},\n\n\t\t// deactivates all previously scheduled actions\n\t\tstopAllAction: function () {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tnActions = this._nActiveActions,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = this._nActiveBindings;\n\n\t\t\tthis._nActiveActions = 0;\n\t\t\tthis._nActiveBindings = 0;\n\n\t\t\tfor ( var i = 0; i !== nActions; ++ i ) {\n\n\t\t\t\tactions[ i ].reset();\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i !== nBindings; ++ i ) {\n\n\t\t\t\tbindings[ i ].useCount = 0;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// advance the time and update apply the animation\n\t\tupdate: function ( deltaTime ) {\n\n\t\t\tdeltaTime *= this.timeScale;\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tnActions = this._nActiveActions,\n\n\t\t\t\ttime = this.time += deltaTime,\n\t\t\t\ttimeDirection = Math.sign( deltaTime ),\n\n\t\t\t\taccuIndex = this._accuIndex ^= 1;\n\n\t\t\t// run active actions\n\n\t\t\tfor ( var i = 0; i !== nActions; ++ i ) {\n\n\t\t\t\tvar action = actions[ i ];\n\n\t\t\t\taction._update( time, deltaTime, timeDirection, accuIndex );\n\n\t\t\t}\n\n\t\t\t// update scene graph\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tnBindings = this._nActiveBindings;\n\n\t\t\tfor ( var i = 0; i !== nBindings; ++ i ) {\n\n\t\t\t\tbindings[ i ].apply( accuIndex );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// return this mixer's root target object\n\t\tgetRoot: function () {\n\n\t\t\treturn this._root;\n\n\t\t},\n\n\t\t// free all resources specific to a particular clip\n\t\tuncacheClip: function ( clip ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tclipUuid = clip.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\t// note: just calling _removeInactiveAction would mess up the\n\t\t\t\t// iteration state and also require updating the state we can\n\t\t\t\t// just throw away\n\n\t\t\t\tvar actionsToRemove = actionsForClip.knownActions;\n\n\t\t\t\tfor ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar action = actionsToRemove[ i ];\n\n\t\t\t\t\tthis._deactivateAction( action );\n\n\t\t\t\t\tvar cacheIndex = action._cacheIndex,\n\t\t\t\t\t\tlastInactiveAction = actions[ actions.length - 1 ];\n\n\t\t\t\t\taction._cacheIndex = null;\n\t\t\t\t\taction._byClipCacheIndex = null;\n\n\t\t\t\t\tlastInactiveAction._cacheIndex = cacheIndex;\n\t\t\t\t\tactions[ cacheIndex ] = lastInactiveAction;\n\t\t\t\t\tactions.pop();\n\n\t\t\t\t\tthis._removeInactiveBindingsForAction( action );\n\n\t\t\t\t}\n\n\t\t\t\tdelete actionsByClip[ clipUuid ];\n\n\t\t\t}\n\n\t\t},\n\n\t\t// free all resources specific to a particular root target object\n\t\tuncacheRoot: function ( root ) {\n\n\t\t\tvar rootUuid = root.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip;\n\n\t\t\tfor ( var clipUuid in actionsByClip ) {\n\n\t\t\t\tvar actionByRoot = actionsByClip[ clipUuid ].actionByRoot,\n\t\t\t\t\taction = actionByRoot[ rootUuid ];\n\n\t\t\t\tif ( action !== undefined ) {\n\n\t\t\t\t\tthis._deactivateAction( action );\n\t\t\t\t\tthis._removeInactiveAction( action );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar bindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ];\n\n\t\t\tif ( bindingByName !== undefined ) {\n\n\t\t\t\tfor ( var trackName in bindingByName ) {\n\n\t\t\t\t\tvar binding = bindingByName[ trackName ];\n\t\t\t\t\tbinding.restoreOriginalState();\n\t\t\t\t\tthis._removeInactiveBinding( binding );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t// remove a targeted clip from the cache\n\t\tuncacheAction: function ( clip, optionalRoot ) {\n\n\t\t\tvar action = this.existingAction( clip, optionalRoot );\n\n\t\t\tif ( action !== null ) {\n\n\t\t\t\tthis._deactivateAction( action );\n\t\t\t\tthis._removeInactiveAction( action );\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Uniform( value ) {\n\n\t\tif ( typeof value === 'string' ) {\n\n\t\t\tconsole.warn( 'THREE.Uniform: Type parameter is no longer needed.' );\n\t\t\tvalue = arguments[ 1 ];\n\n\t\t}\n\n\t\tthis.value = value;\n\n\t}\n\n\tUniform.prototype.clone = function () {\n\n\t\treturn new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );\n\n\t};\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedBufferGeometry() {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'InstancedBufferGeometry';\n\t\tthis.maxInstancedCount = undefined;\n\n\t}\n\n\tInstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {\n\n\t\tconstructor: InstancedBufferGeometry,\n\n\t\tisInstancedBufferGeometry: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tBufferGeometry.prototype.copy.call( this, source );\n\n\t\t\tthis.maxInstancedCount = source.maxInstancedCount;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {\n\n\t\tInterleavedBuffer.call( this, array, stride );\n\n\t\tthis.meshPerAttribute = meshPerAttribute || 1;\n\n\t}\n\n\tInstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {\n\n\t\tconstructor: InstancedInterleavedBuffer,\n\n\t\tisInstancedInterleavedBuffer: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tInterleavedBuffer.prototype.copy.call( this, source );\n\n\t\t\tthis.meshPerAttribute = source.meshPerAttribute;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedBufferAttribute( array, itemSize, meshPerAttribute ) {\n\n\t\tBufferAttribute.call( this, array, itemSize );\n\n\t\tthis.meshPerAttribute = meshPerAttribute || 1;\n\n\t}\n\n\tInstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {\n\n\t\tconstructor: InstancedBufferAttribute,\n\n\t\tisInstancedBufferAttribute: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tBufferAttribute.prototype.copy.call( this, source );\n\n\t\t\tthis.meshPerAttribute = source.meshPerAttribute;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author bhouston / http://clara.io/\n\t * @author stephomi / http://stephaneginier.com/\n\t */\n\n\tfunction Raycaster( origin, direction, near, far ) {\n\n\t\tthis.ray = new Ray( origin, direction );\n\t\t// direction is assumed to be normalized (for accurate distance calculations)\n\n\t\tthis.near = near || 0;\n\t\tthis.far = far || Infinity;\n\n\t\tthis.params = {\n\t\t\tMesh: {},\n\t\t\tLine: {},\n\t\t\tLOD: {},\n\t\t\tPoints: { threshold: 1 },\n\t\t\tSprite: {}\n\t\t};\n\n\t\tObject.defineProperties( this.params, {\n\t\t\tPointCloud: {\n\t\t\t\tget: function () {\n\n\t\t\t\t\tconsole.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );\n\t\t\t\t\treturn this.Points;\n\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t}\n\n\tfunction ascSort( a, b ) {\n\n\t\treturn a.distance - b.distance;\n\n\t}\n\n\tfunction intersectObject( object, raycaster, intersects, recursive ) {\n\n\t\tif ( object.visible === false ) return;\n\n\t\tobject.raycast( raycaster, intersects );\n\n\t\tif ( recursive === true ) {\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tintersectObject( children[ i ], raycaster, intersects, true );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tObject.assign( Raycaster.prototype, {\n\n\t\tlinePrecision: 1,\n\n\t\tset: function ( origin, direction ) {\n\n\t\t\t// direction is assumed to be normalized (for accurate distance calculations)\n\n\t\t\tthis.ray.set( origin, direction );\n\n\t\t},\n\n\t\tsetFromCamera: function ( coords, camera ) {\n\n\t\t\tif ( ( camera && camera.isPerspectiveCamera ) ) {\n\n\t\t\t\tthis.ray.origin.setFromMatrixPosition( camera.matrixWorld );\n\t\t\t\tthis.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();\n\n\t\t\t} else if ( ( camera && camera.isOrthographicCamera ) ) {\n\n\t\t\t\tthis.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera\n\t\t\t\tthis.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.error( 'THREE.Raycaster: Unsupported camera type.' );\n\n\t\t\t}\n\n\t\t},\n\n\t\tintersectObject: function ( object, recursive, optionalTarget ) {\n\n\t\t\tvar intersects = optionalTarget || [];\n\n\t\t\tintersectObject( object, this, intersects, recursive );\n\n\t\t\tintersects.sort( ascSort );\n\n\t\t\treturn intersects;\n\n\t\t},\n\n\t\tintersectObjects: function ( objects, recursive, optionalTarget ) {\n\n\t\t\tvar intersects = optionalTarget || [];\n\n\t\t\tif ( Array.isArray( objects ) === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );\n\t\t\t\treturn intersects;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, l = objects.length; i < l; i ++ ) {\n\n\t\t\t\tintersectObject( objects[ i ], this, intersects, recursive );\n\n\t\t\t}\n\n\t\t\tintersects.sort( ascSort );\n\n\t\t\treturn intersects;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Clock( autoStart ) {\n\n\t\tthis.autoStart = ( autoStart !== undefined ) ? autoStart : true;\n\n\t\tthis.startTime = 0;\n\t\tthis.oldTime = 0;\n\t\tthis.elapsedTime = 0;\n\n\t\tthis.running = false;\n\n\t}\n\n\tObject.assign( Clock.prototype, {\n\n\t\tstart: function () {\n\n\t\t\tthis.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732\n\n\t\t\tthis.oldTime = this.startTime;\n\t\t\tthis.elapsedTime = 0;\n\t\t\tthis.running = true;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tthis.getElapsedTime();\n\t\t\tthis.running = false;\n\t\t\tthis.autoStart = false;\n\n\t\t},\n\n\t\tgetElapsedTime: function () {\n\n\t\t\tthis.getDelta();\n\t\t\treturn this.elapsedTime;\n\n\t\t},\n\n\t\tgetDelta: function () {\n\n\t\t\tvar diff = 0;\n\n\t\t\tif ( this.autoStart && ! this.running ) {\n\n\t\t\t\tthis.start();\n\t\t\t\treturn 0;\n\n\t\t\t}\n\n\t\t\tif ( this.running ) {\n\n\t\t\t\tvar newTime = ( typeof performance === 'undefined' ? Date : performance ).now();\n\n\t\t\t\tdiff = ( newTime - this.oldTime ) / 1000;\n\t\t\t\tthis.oldTime = newTime;\n\n\t\t\t\tthis.elapsedTime += diff;\n\n\t\t\t}\n\n\t\t\treturn diff;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system\n\t *\n\t * The poles (phi) are at the positive and negative y axis.\n\t * The equator starts at positive z.\n\t */\n\n\tfunction Spherical( radius, phi, theta ) {\n\n\t\tthis.radius = ( radius !== undefined ) ? radius : 1.0;\n\t\tthis.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole\n\t\tthis.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere\n\n\t\treturn this;\n\n\t}\n\n\tObject.assign( Spherical.prototype, {\n\n\t\tset: function ( radius, phi, theta ) {\n\n\t\t\tthis.radius = radius;\n\t\t\tthis.phi = phi;\n\t\t\tthis.theta = theta;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( other ) {\n\n\t\t\tthis.radius = other.radius;\n\t\t\tthis.phi = other.phi;\n\t\t\tthis.theta = other.theta;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// restrict phi to be betwee EPS and PI-EPS\n\t\tmakeSafe: function () {\n\n\t\t\tvar EPS = 0.000001;\n\t\t\tthis.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromVector3: function ( vec3 ) {\n\n\t\t\tthis.radius = vec3.length();\n\n\t\t\tif ( this.radius === 0 ) {\n\n\t\t\t\tthis.theta = 0;\n\t\t\t\tthis.phi = 0;\n\n\t\t\t} else {\n\n\t\t\t\tthis.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis\n\t\t\t\tthis.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system\n\t *\n\t */\n\n\tfunction Cylindrical( radius, theta, y ) {\n\n\t\tthis.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane\n\t\tthis.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis\n\t\tthis.y = ( y !== undefined ) ? y : 0; // height above the x-z plane\n\n\t\treturn this;\n\n\t}\n\n\tObject.assign( Cylindrical.prototype, {\n\n\t\tset: function ( radius, theta, y ) {\n\n\t\t\tthis.radius = radius;\n\t\t\tthis.theta = theta;\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( other ) {\n\n\t\t\tthis.radius = other.radius;\n\t\t\tthis.theta = other.theta;\n\t\t\tthis.y = other.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromVector3: function ( vec3 ) {\n\n\t\t\tthis.radius = Math.sqrt( vec3.x * vec3.x + vec3.z * vec3.z );\n\t\t\tthis.theta = Math.atan2( vec3.x, vec3.z );\n\t\t\tthis.y = vec3.y;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Box2( min, max ) {\n\n\t\tthis.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );\n\t\tthis.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );\n\n\t}\n\n\tObject.assign( Box2.prototype, {\n\n\t\tset: function ( min, max ) {\n\n\t\t\tthis.min.copy( min );\n\t\t\tthis.max.copy( max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\tthis.expandByPoint( points[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCenterAndSize: function () {\n\n\t\t\tvar v1 = new Vector2();\n\n\t\t\treturn function setFromCenterAndSize( center, size ) {\n\n\t\t\t\tvar halfSize = v1.copy( size ).multiplyScalar( 0.5 );\n\t\t\t\tthis.min.copy( center ).sub( halfSize );\n\t\t\t\tthis.max.copy( center ).add( halfSize );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( box ) {\n\n\t\t\tthis.min.copy( box.min );\n\t\t\tthis.max.copy( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeEmpty: function () {\n\n\t\t\tthis.min.x = this.min.y = + Infinity;\n\t\t\tthis.max.x = this.max.y = - Infinity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tisEmpty: function () {\n\n\t\t\t// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes\n\n\t\t\treturn ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );\n\n\t\t},\n\n\t\tgetCenter: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .getCenter() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tgetSize: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .getSize() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min );\n\n\t\t},\n\n\t\texpandByPoint: function ( point ) {\n\n\t\t\tthis.min.min( point );\n\t\t\tthis.max.max( point );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByVector: function ( vector ) {\n\n\t\t\tthis.min.sub( vector );\n\t\t\tthis.max.add( vector );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByScalar: function ( scalar ) {\n\n\t\t\tthis.min.addScalar( - scalar );\n\t\t\tthis.max.addScalar( scalar );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn point.x < this.min.x || point.x > this.max.x ||\n\t\t\t\tpoint.y < this.min.y || point.y > this.max.y ? false : true;\n\n\t\t},\n\n\t\tcontainsBox: function ( box ) {\n\n\t\t\treturn this.min.x <= box.min.x && box.max.x <= this.max.x &&\n\t\t\t\tthis.min.y <= box.min.y && box.max.y <= this.max.y;\n\n\t\t},\n\n\t\tgetParameter: function ( point, target ) {\n\n\t\t\t// This can potentially have a divide by zero if the box\n\t\t\t// has a size dimension of 0.\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .getParameter() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn target.set(\n\t\t\t\t( point.x - this.min.x ) / ( this.max.x - this.min.x ),\n\t\t\t\t( point.y - this.min.y ) / ( this.max.y - this.min.y )\n\t\t\t);\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\t// using 4 splitting planes to rule out intersections\n\n\t\t\treturn box.max.x < this.min.x || box.min.x > this.max.x ||\n\t\t\t\tbox.max.y < this.min.y || box.min.y > this.max.y ? false : true;\n\n\t\t},\n\n\t\tclampPoint: function ( point, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Box2: .clampPoint() target is now required' );\n\t\t\t\ttarget = new Vector2();\n\n\t\t\t}\n\n\t\t\treturn target.copy( point ).clamp( this.min, this.max );\n\n\t\t},\n\n\t\tdistanceToPoint: function () {\n\n\t\t\tvar v1 = new Vector2();\n\n\t\t\treturn function distanceToPoint( point ) {\n\n\t\t\t\tvar clampedPoint = v1.copy( point ).clamp( this.min, this.max );\n\t\t\t\treturn clampedPoint.sub( point ).length();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersect: function ( box ) {\n\n\t\t\tthis.min.max( box.min );\n\t\t\tthis.max.min( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tunion: function ( box ) {\n\n\t\t\tthis.min.min( box.min );\n\t\t\tthis.max.max( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.min.add( offset );\n\t\t\tthis.max.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( box ) {\n\n\t\t\treturn box.min.equals( this.min ) && box.max.equals( this.max );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Line3( start, end ) {\n\n\t\tthis.start = ( start !== undefined ) ? start : new Vector3();\n\t\tthis.end = ( end !== undefined ) ? end : new Vector3();\n\n\t}\n\n\tObject.assign( Line3.prototype, {\n\n\t\tset: function ( start, end ) {\n\n\t\t\tthis.start.copy( start );\n\t\t\tthis.end.copy( end );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( line ) {\n\n\t\t\tthis.start.copy( line.start );\n\t\t\tthis.end.copy( line.end );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetCenter: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .getCenter() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tdelta: function ( target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .delta() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn target.subVectors( this.end, this.start );\n\n\t\t},\n\n\t\tdistanceSq: function () {\n\n\t\t\treturn this.start.distanceToSquared( this.end );\n\n\t\t},\n\n\t\tdistance: function () {\n\n\t\t\treturn this.start.distanceTo( this.end );\n\n\t\t},\n\n\t\tat: function ( t, target ) {\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .at() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.delta( target ).multiplyScalar( t ).add( this.start );\n\n\t\t},\n\n\t\tclosestPointToPointParameter: function () {\n\n\t\t\tvar startP = new Vector3();\n\t\t\tvar startEnd = new Vector3();\n\n\t\t\treturn function closestPointToPointParameter( point, clampToLine ) {\n\n\t\t\t\tstartP.subVectors( point, this.start );\n\t\t\t\tstartEnd.subVectors( this.end, this.start );\n\n\t\t\t\tvar startEnd2 = startEnd.dot( startEnd );\n\t\t\t\tvar startEnd_startP = startEnd.dot( startP );\n\n\t\t\t\tvar t = startEnd_startP / startEnd2;\n\n\t\t\t\tif ( clampToLine ) {\n\n\t\t\t\t\tt = _Math.clamp( t, 0, 1 );\n\n\t\t\t\t}\n\n\t\t\t\treturn t;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclosestPointToPoint: function ( point, clampToLine, target ) {\n\n\t\t\tvar t = this.closestPointToPointParameter( point, clampToLine );\n\n\t\t\tif ( target === undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Line3: .closestPointToPoint() target is now required' );\n\t\t\t\ttarget = new Vector3();\n\n\t\t\t}\n\n\t\t\treturn this.delta( target ).multiplyScalar( t ).add( this.start );\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\tthis.start.applyMatrix4( matrix );\n\t\t\tthis.end.applyMatrix4( matrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( line ) {\n\n\t\t\treturn line.start.equals( this.start ) && line.end.equals( this.end );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction ImmediateRenderObject( material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.material = material;\n\t\tthis.render = function ( /* renderCallback */ ) {};\n\n\t}\n\n\tImmediateRenderObject.prototype = Object.create( Object3D.prototype );\n\tImmediateRenderObject.prototype.constructor = ImmediateRenderObject;\n\n\tImmediateRenderObject.prototype.isImmediateRenderObject = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction VertexNormalsHelper( object, size, hex, linewidth ) {\n\n\t\tthis.object = object;\n\n\t\tthis.size = ( size !== undefined ) ? size : 1;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xff0000;\n\n\t\tvar width = ( linewidth !== undefined ) ? linewidth : 1;\n\n\t\t//\n\n\t\tvar nNormals = 0;\n\n\t\tvar objGeometry = this.object.geometry;\n\n\t\tif ( objGeometry && objGeometry.isGeometry ) {\n\n\t\t\tnNormals = objGeometry.faces.length * 3;\n\n\t\t} else if ( objGeometry && objGeometry.isBufferGeometry ) {\n\n\t\t\tnNormals = objGeometry.attributes.normal.count;\n\n\t\t}\n\n\t\t//\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );\n\n\t\tgeometry.addAttribute( 'position', positions );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );\n\n\t\t//\n\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\t}\n\n\tVertexNormalsHelper.prototype = Object.create( LineSegments.prototype );\n\tVertexNormalsHelper.prototype.constructor = VertexNormalsHelper;\n\n\tVertexNormalsHelper.prototype.update = ( function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar normalMatrix = new Matrix3();\n\n\t\treturn function update() {\n\n\t\t\tvar keys = [ 'a', 'b', 'c' ];\n\n\t\t\tthis.object.updateMatrixWorld( true );\n\n\t\t\tnormalMatrix.getNormalMatrix( this.object.matrixWorld );\n\n\t\t\tvar matrixWorld = this.object.matrixWorld;\n\n\t\t\tvar position = this.geometry.attributes.position;\n\n\t\t\t//\n\n\t\t\tvar objGeometry = this.object.geometry;\n\n\t\t\tif ( objGeometry && objGeometry.isGeometry ) {\n\n\t\t\t\tvar vertices = objGeometry.vertices;\n\n\t\t\t\tvar faces = objGeometry.faces;\n\n\t\t\t\tvar idx = 0;\n\n\t\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\t\tfor ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar vertex = vertices[ face[ keys[ j ] ] ];\n\n\t\t\t\t\t\tvar normal = face.vertexNormals[ j ];\n\n\t\t\t\t\t\tv1.copy( vertex ).applyMatrix4( matrixWorld );\n\n\t\t\t\t\t\tv2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else if ( objGeometry && objGeometry.isBufferGeometry ) {\n\n\t\t\t\tvar objPos = objGeometry.attributes.position;\n\n\t\t\t\tvar objNorm = objGeometry.attributes.normal;\n\n\t\t\t\tvar idx = 0;\n\n\t\t\t\t// for simplicity, ignore index and drawcalls, and render every normal\n\n\t\t\t\tfor ( var j = 0, jl = objPos.count; j < jl; j ++ ) {\n\n\t\t\t\t\tv1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );\n\n\t\t\t\t\tv2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );\n\n\t\t\t\t\tv2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t};\n\n\t}() );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction SpotLightHelper( light, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = [\n\t\t\t0, 0, 0, \t0, 0, 1,\n\t\t\t0, 0, 0, \t1, 0, 1,\n\t\t\t0, 0, 0,\t- 1, 0, 1,\n\t\t\t0, 0, 0, \t0, 1, 1,\n\t\t\t0, 0, 0, \t0, - 1, 1\n\t\t];\n\n\t\tfor ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {\n\n\t\t\tvar p1 = ( i / l ) * Math.PI * 2;\n\t\t\tvar p2 = ( j / l ) * Math.PI * 2;\n\n\t\t\tpositions.push(\n\t\t\t\tMath.cos( p1 ), Math.sin( p1 ), 1,\n\t\t\t\tMath.cos( p2 ), Math.sin( p2 ), 1\n\t\t\t);\n\n\t\t}\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tthis.cone = new LineSegments( geometry, material );\n\t\tthis.add( this.cone );\n\n\t\tthis.update();\n\n\t}\n\n\tSpotLightHelper.prototype = Object.create( Object3D.prototype );\n\tSpotLightHelper.prototype.constructor = SpotLightHelper;\n\n\tSpotLightHelper.prototype.dispose = function () {\n\n\t\tthis.cone.geometry.dispose();\n\t\tthis.cone.material.dispose();\n\n\t};\n\n\tSpotLightHelper.prototype.update = function () {\n\n\t\tvar vector = new Vector3();\n\t\tvar vector2 = new Vector3();\n\n\t\treturn function update() {\n\n\t\t\tthis.light.updateMatrixWorld();\n\n\t\t\tvar coneLength = this.light.distance ? this.light.distance : 1000;\n\t\t\tvar coneWidth = coneLength * Math.tan( this.light.angle );\n\n\t\t\tthis.cone.scale.set( coneWidth, coneWidth, coneLength );\n\n\t\t\tvector.setFromMatrixPosition( this.light.matrixWorld );\n\t\t\tvector2.setFromMatrixPosition( this.light.target.matrixWorld );\n\n\t\t\tthis.cone.lookAt( vector2.sub( vector ) );\n\n\t\t\tif ( this.color !== undefined ) {\n\n\t\t\t\tthis.cone.material.color.set( this.color );\n\n\t\t\t} else {\n\n\t\t\t\tthis.cone.material.color.copy( this.light.color );\n\n\t\t\t}\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author Sean Griffin / http://twitter.com/sgrif\n\t * @author Michael Guerrero / http://realitymeltdown.com\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author ikerr / http://verold.com\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction getBoneList( object ) {\n\n\t\tvar boneList = [];\n\n\t\tif ( object && object.isBone ) {\n\n\t\t\tboneList.push( object );\n\n\t\t}\n\n\t\tfor ( var i = 0; i < object.children.length; i ++ ) {\n\n\t\t\tboneList.push.apply( boneList, getBoneList( object.children[ i ] ) );\n\n\t\t}\n\n\t\treturn boneList;\n\n\t}\n\n\tfunction SkeletonHelper( object ) {\n\n\t\tvar bones = getBoneList( object );\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar vertices = [];\n\t\tvar colors = [];\n\n\t\tvar color1 = new Color( 0, 0, 1 );\n\t\tvar color2 = new Color( 0, 1, 0 );\n\n\t\tfor ( var i = 0; i < bones.length; i ++ ) {\n\n\t\t\tvar bone = bones[ i ];\n\n\t\t\tif ( bone.parent && bone.parent.isBone ) {\n\n\t\t\t\tvertices.push( 0, 0, 0 );\n\t\t\t\tvertices.push( 0, 0, 0 );\n\t\t\t\tcolors.push( color1.r, color1.g, color1.b );\n\t\t\t\tcolors.push( color2.r, color2.g, color2.b );\n\n\t\t\t}\n\n\t\t}\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t\tthis.root = object;\n\t\tthis.bones = bones;\n\n\t\tthis.matrix = object.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t}\n\n\tSkeletonHelper.prototype = Object.create( LineSegments.prototype );\n\tSkeletonHelper.prototype.constructor = SkeletonHelper;\n\n\tSkeletonHelper.prototype.updateMatrixWorld = function () {\n\n\t\tvar vector = new Vector3();\n\n\t\tvar boneMatrix = new Matrix4();\n\t\tvar matrixWorldInv = new Matrix4();\n\n\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\tvar bones = this.bones;\n\n\t\t\tvar geometry = this.geometry;\n\t\t\tvar position = geometry.getAttribute( 'position' );\n\n\t\t\tmatrixWorldInv.getInverse( this.root.matrixWorld );\n\n\t\t\tfor ( var i = 0, j = 0; i < bones.length; i ++ ) {\n\n\t\t\t\tvar bone = bones[ i ];\n\n\t\t\t\tif ( bone.parent && bone.parent.isBone ) {\n\n\t\t\t\t\tboneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );\n\t\t\t\t\tvector.setFromMatrixPosition( boneMatrix );\n\t\t\t\t\tposition.setXYZ( j, vector.x, vector.y, vector.z );\n\n\t\t\t\t\tboneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );\n\t\t\t\t\tvector.setFromMatrixPosition( boneMatrix );\n\t\t\t\t\tposition.setXYZ( j + 1, vector.x, vector.y, vector.z );\n\n\t\t\t\t\tj += 2;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tgeometry.getAttribute( 'position' ).needsUpdate = true;\n\n\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction PointLightHelper( light, sphereSize, color ) {\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.color = color;\n\n\t\tvar geometry = new SphereBufferGeometry( sphereSize, 4, 2 );\n\t\tvar material = new MeshBasicMaterial( { wireframe: true, fog: false } );\n\n\t\tMesh.call( this, geometry, material );\n\n\t\tthis.matrix = this.light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\n\t\t/*\n\t\tvar distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );\n\t\tvar distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );\n\n\t\tthis.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );\n\t\tthis.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );\n\n\t\tvar d = light.distance;\n\n\t\tif ( d === 0.0 ) {\n\n\t\t\tthis.lightDistance.visible = false;\n\n\t\t} else {\n\n\t\t\tthis.lightDistance.scale.set( d, d, d );\n\n\t\t}\n\n\t\tthis.add( this.lightDistance );\n\t\t*/\n\n\t}\n\n\tPointLightHelper.prototype = Object.create( Mesh.prototype );\n\tPointLightHelper.prototype.constructor = PointLightHelper;\n\n\tPointLightHelper.prototype.dispose = function () {\n\n\t\tthis.geometry.dispose();\n\t\tthis.material.dispose();\n\n\t};\n\n\tPointLightHelper.prototype.update = function () {\n\n\t\tif ( this.color !== undefined ) {\n\n\t\t\tthis.material.color.set( this.color );\n\n\t\t} else {\n\n\t\t\tthis.material.color.copy( this.light.color );\n\n\t\t}\n\n\t\t/*\n\t\tvar d = this.light.distance;\n\n\t\tif ( d === 0.0 ) {\n\n\t\t\tthis.lightDistance.visible = false;\n\n\t\t} else {\n\n\t\t\tthis.lightDistance.visible = true;\n\t\t\tthis.lightDistance.scale.set( d, d, d );\n\n\t\t}\n\t\t*/\n\n\t};\n\n\t/**\n\t * @author abelnation / http://github.com/abelnation\n\t * @author Mugen87 / http://github.com/Mugen87\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction RectAreaLightHelper( light, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tgeometry.addAttribute( 'position', new BufferAttribute( new Float32Array( 5 * 3 ), 3 ) );\n\n\t\tthis.line = new Line( geometry, material );\n\t\tthis.add( this.line );\n\n\n\t\tthis.update();\n\n\t}\n\n\tRectAreaLightHelper.prototype = Object.create( Object3D.prototype );\n\tRectAreaLightHelper.prototype.constructor = RectAreaLightHelper;\n\n\tRectAreaLightHelper.prototype.dispose = function () {\n\n\t\tthis.children[ 0 ].geometry.dispose();\n\t\tthis.children[ 0 ].material.dispose();\n\n\t};\n\n\tRectAreaLightHelper.prototype.update = function () {\n\n\t\t// calculate new dimensions of the helper\n\n\t\tvar hx = this.light.width * 0.5;\n\t\tvar hy = this.light.height * 0.5;\n\n\t\tvar position = this.line.geometry.attributes.position;\n\t\tvar array = position.array;\n\n\t\t// update vertices\n\n\t\tarray[ 0 ] = hx; array[ 1 ] = - hy; array[ 2 ] = 0;\n\t\tarray[ 3 ] = hx; array[ 4 ] = hy; array[ 5 ] = 0;\n\t\tarray[ 6 ] = - hx; array[ 7 ] = hy; array[ 8 ] = 0;\n\t\tarray[ 9 ] = - hx; array[ 10 ] = - hy; array[ 11 ] = 0;\n\t\tarray[ 12 ] = hx; array[ 13 ] = - hy; array[ 14 ] = 0;\n\n\t\tposition.needsUpdate = true;\n\n\t\tif ( this.color !== undefined ) {\n\n\t\t\tthis.line.material.color.set( this.color );\n\n\t\t} else {\n\n\t\t\tthis.line.material.color.copy( this.light.color );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction HemisphereLightHelper( light, size, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tvar geometry = new OctahedronBufferGeometry( size );\n\t\tgeometry.rotateY( Math.PI * 0.5 );\n\n\t\tthis.material = new MeshBasicMaterial( { wireframe: true, fog: false } );\n\t\tif ( this.color === undefined ) this.material.vertexColors = VertexColors;\n\n\t\tvar position = geometry.getAttribute( 'position' );\n\t\tvar colors = new Float32Array( position.count * 3 );\n\n\t\tgeometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );\n\n\t\tthis.add( new Mesh( geometry, this.material ) );\n\n\t\tthis.update();\n\n\t}\n\n\tHemisphereLightHelper.prototype = Object.create( Object3D.prototype );\n\tHemisphereLightHelper.prototype.constructor = HemisphereLightHelper;\n\n\tHemisphereLightHelper.prototype.dispose = function () {\n\n\t\tthis.children[ 0 ].geometry.dispose();\n\t\tthis.children[ 0 ].material.dispose();\n\n\t};\n\n\tHemisphereLightHelper.prototype.update = function () {\n\n\t\tvar vector = new Vector3();\n\n\t\tvar color1 = new Color();\n\t\tvar color2 = new Color();\n\n\t\treturn function update() {\n\n\t\t\tvar mesh = this.children[ 0 ];\n\n\t\t\tif ( this.color !== undefined ) {\n\n\t\t\t\tthis.material.color.set( this.color );\n\n\t\t\t} else {\n\n\t\t\t\tvar colors = mesh.geometry.getAttribute( 'color' );\n\n\t\t\t\tcolor1.copy( this.light.color );\n\t\t\t\tcolor2.copy( this.light.groundColor );\n\n\t\t\t\tfor ( var i = 0, l = colors.count; i < l; i ++ ) {\n\n\t\t\t\t\tvar color = ( i < ( l / 2 ) ) ? color1 : color2;\n\n\t\t\t\t\tcolors.setXYZ( i, color.r, color.g, color.b );\n\n\t\t\t\t}\n\n\t\t\t\tcolors.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tmesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction GridHelper( size, divisions, color1, color2 ) {\n\n\t\tsize = size || 10;\n\t\tdivisions = divisions || 10;\n\t\tcolor1 = new Color( color1 !== undefined ? color1 : 0x444444 );\n\t\tcolor2 = new Color( color2 !== undefined ? color2 : 0x888888 );\n\n\t\tvar center = divisions / 2;\n\t\tvar step = size / divisions;\n\t\tvar halfSize = size / 2;\n\n\t\tvar vertices = [], colors = [];\n\n\t\tfor ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {\n\n\t\t\tvertices.push( - halfSize, 0, k, halfSize, 0, k );\n\t\t\tvertices.push( k, 0, - halfSize, k, 0, halfSize );\n\n\t\t\tvar color = i === center ? color1 : color2;\n\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\n\t\t}\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tGridHelper.prototype = Object.create( LineSegments.prototype );\n\tGridHelper.prototype.constructor = GridHelper;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / http://github.com/Mugen87\n\t * @author Hectate / http://www.github.com/Hectate\n\t */\n\n\tfunction PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {\n\n\t\tradius = radius || 10;\n\t\tradials = radials || 16;\n\t\tcircles = circles || 8;\n\t\tdivisions = divisions || 64;\n\t\tcolor1 = new Color( color1 !== undefined ? color1 : 0x444444 );\n\t\tcolor2 = new Color( color2 !== undefined ? color2 : 0x888888 );\n\n\t\tvar vertices = [];\n\t\tvar colors = [];\n\n\t\tvar x, z;\n\t\tvar v, i, j, r, color;\n\n\t\t// create the radials\n\n\t\tfor ( i = 0; i <= radials; i ++ ) {\n\n\t\t\tv = ( i / radials ) * ( Math.PI * 2 );\n\n\t\t\tx = Math.sin( v ) * radius;\n\t\t\tz = Math.cos( v ) * radius;\n\n\t\t\tvertices.push( 0, 0, 0 );\n\t\t\tvertices.push( x, 0, z );\n\n\t\t\tcolor = ( i & 1 ) ? color1 : color2;\n\n\t\t\tcolors.push( color.r, color.g, color.b );\n\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t}\n\n\t\t// create the circles\n\n\t\tfor ( i = 0; i <= circles; i ++ ) {\n\n\t\t\tcolor = ( i & 1 ) ? color1 : color2;\n\n\t\t\tr = radius - ( radius / circles * i );\n\n\t\t\tfor ( j = 0; j < divisions; j ++ ) {\n\n\t\t\t\t// first vertex\n\n\t\t\t\tv = ( j / divisions ) * ( Math.PI * 2 );\n\n\t\t\t\tx = Math.sin( v ) * r;\n\t\t\t\tz = Math.cos( v ) * r;\n\n\t\t\t\tvertices.push( x, 0, z );\n\t\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t\t\t// second vertex\n\n\t\t\t\tv = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );\n\n\t\t\t\tx = Math.sin( v ) * r;\n\t\t\t\tz = Math.cos( v ) * r;\n\n\t\t\t\tvertices.push( x, 0, z );\n\t\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tPolarGridHelper.prototype = Object.create( LineSegments.prototype );\n\tPolarGridHelper.prototype.constructor = PolarGridHelper;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction FaceNormalsHelper( object, size, hex, linewidth ) {\n\n\t\t// FaceNormalsHelper only supports THREE.Geometry\n\n\t\tthis.object = object;\n\n\t\tthis.size = ( size !== undefined ) ? size : 1;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xffff00;\n\n\t\tvar width = ( linewidth !== undefined ) ? linewidth : 1;\n\n\t\t//\n\n\t\tvar nNormals = 0;\n\n\t\tvar objGeometry = this.object.geometry;\n\n\t\tif ( objGeometry && objGeometry.isGeometry ) {\n\n\t\t\tnNormals = objGeometry.faces.length;\n\n\t\t} else {\n\n\t\t\tconsole.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );\n\n\t\t}\n\n\t\t//\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );\n\n\t\tgeometry.addAttribute( 'position', positions );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );\n\n\t\t//\n\n\t\tthis.matrixAutoUpdate = false;\n\t\tthis.update();\n\n\t}\n\n\tFaceNormalsHelper.prototype = Object.create( LineSegments.prototype );\n\tFaceNormalsHelper.prototype.constructor = FaceNormalsHelper;\n\n\tFaceNormalsHelper.prototype.update = ( function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar normalMatrix = new Matrix3();\n\n\t\treturn function update() {\n\n\t\t\tthis.object.updateMatrixWorld( true );\n\n\t\t\tnormalMatrix.getNormalMatrix( this.object.matrixWorld );\n\n\t\t\tvar matrixWorld = this.object.matrixWorld;\n\n\t\t\tvar position = this.geometry.attributes.position;\n\n\t\t\t//\n\n\t\t\tvar objGeometry = this.object.geometry;\n\n\t\t\tvar vertices = objGeometry.vertices;\n\n\t\t\tvar faces = objGeometry.faces;\n\n\t\t\tvar idx = 0;\n\n\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tvar normal = face.normal;\n\n\t\t\t\tv1.copy( vertices[ face.a ] )\n\t\t\t\t\t.add( vertices[ face.b ] )\n\t\t\t\t\t.add( vertices[ face.c ] )\n\t\t\t\t\t.divideScalar( 3 )\n\t\t\t\t\t.applyMatrix4( matrixWorld );\n\n\t\t\t\tv2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\tidx = idx + 1;\n\n\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\tidx = idx + 1;\n\n\t\t\t}\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t};\n\n\t}() );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction DirectionalLightHelper( light, size, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.color = color;\n\n\t\tif ( size === undefined ) size = 1;\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( [\n\t\t\t- size, size, 0,\n\t\t\tsize, size, 0,\n\t\t\tsize, - size, 0,\n\t\t\t- size, - size, 0,\n\t\t\t- size, size, 0\n\t\t], 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tthis.lightPlane = new Line( geometry, material );\n\t\tthis.add( this.lightPlane );\n\n\t\tgeometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );\n\n\t\tthis.targetLine = new Line( geometry, material );\n\t\tthis.add( this.targetLine );\n\n\t\tthis.update();\n\n\t}\n\n\tDirectionalLightHelper.prototype = Object.create( Object3D.prototype );\n\tDirectionalLightHelper.prototype.constructor = DirectionalLightHelper;\n\n\tDirectionalLightHelper.prototype.dispose = function () {\n\n\t\tthis.lightPlane.geometry.dispose();\n\t\tthis.lightPlane.material.dispose();\n\t\tthis.targetLine.geometry.dispose();\n\t\tthis.targetLine.material.dispose();\n\n\t};\n\n\tDirectionalLightHelper.prototype.update = function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar v3 = new Vector3();\n\n\t\treturn function update() {\n\n\t\t\tv1.setFromMatrixPosition( this.light.matrixWorld );\n\t\t\tv2.setFromMatrixPosition( this.light.target.matrixWorld );\n\t\t\tv3.subVectors( v2, v1 );\n\n\t\t\tthis.lightPlane.lookAt( v3 );\n\n\t\t\tif ( this.color !== undefined ) {\n\n\t\t\t\tthis.lightPlane.material.color.set( this.color );\n\t\t\t\tthis.targetLine.material.color.set( this.color );\n\n\t\t\t} else {\n\n\t\t\t\tthis.lightPlane.material.color.copy( this.light.color );\n\t\t\t\tthis.targetLine.material.color.copy( this.light.color );\n\n\t\t\t}\n\n\t\t\tthis.targetLine.lookAt( v3 );\n\t\t\tthis.targetLine.scale.z = v3.length();\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t *\t- shows frustum, line of sight and up of the camera\n\t *\t- suitable for fast updates\n\t * \t- based on frustum visualization in lightgl.js shadowmap example\n\t *\t\thttp://evanw.github.com/lightgl.js/tests/shadowmap.html\n\t */\n\n\tfunction CameraHelper( camera ) {\n\n\t\tvar geometry = new BufferGeometry();\n\t\tvar material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );\n\n\t\tvar vertices = [];\n\t\tvar colors = [];\n\n\t\tvar pointMap = {};\n\n\t\t// colors\n\n\t\tvar colorFrustum = new Color( 0xffaa00 );\n\t\tvar colorCone = new Color( 0xff0000 );\n\t\tvar colorUp = new Color( 0x00aaff );\n\t\tvar colorTarget = new Color( 0xffffff );\n\t\tvar colorCross = new Color( 0x333333 );\n\n\t\t// near\n\n\t\taddLine( 'n1', 'n2', colorFrustum );\n\t\taddLine( 'n2', 'n4', colorFrustum );\n\t\taddLine( 'n4', 'n3', colorFrustum );\n\t\taddLine( 'n3', 'n1', colorFrustum );\n\n\t\t// far\n\n\t\taddLine( 'f1', 'f2', colorFrustum );\n\t\taddLine( 'f2', 'f4', colorFrustum );\n\t\taddLine( 'f4', 'f3', colorFrustum );\n\t\taddLine( 'f3', 'f1', colorFrustum );\n\n\t\t// sides\n\n\t\taddLine( 'n1', 'f1', colorFrustum );\n\t\taddLine( 'n2', 'f2', colorFrustum );\n\t\taddLine( 'n3', 'f3', colorFrustum );\n\t\taddLine( 'n4', 'f4', colorFrustum );\n\n\t\t// cone\n\n\t\taddLine( 'p', 'n1', colorCone );\n\t\taddLine( 'p', 'n2', colorCone );\n\t\taddLine( 'p', 'n3', colorCone );\n\t\taddLine( 'p', 'n4', colorCone );\n\n\t\t// up\n\n\t\taddLine( 'u1', 'u2', colorUp );\n\t\taddLine( 'u2', 'u3', colorUp );\n\t\taddLine( 'u3', 'u1', colorUp );\n\n\t\t// target\n\n\t\taddLine( 'c', 't', colorTarget );\n\t\taddLine( 'p', 'c', colorCross );\n\n\t\t// cross\n\n\t\taddLine( 'cn1', 'cn2', colorCross );\n\t\taddLine( 'cn3', 'cn4', colorCross );\n\n\t\taddLine( 'cf1', 'cf2', colorCross );\n\t\taddLine( 'cf3', 'cf4', colorCross );\n\n\t\tfunction addLine( a, b, color ) {\n\n\t\t\taddPoint( a, color );\n\t\t\taddPoint( b, color );\n\n\t\t}\n\n\t\tfunction addPoint( id, color ) {\n\n\t\t\tvertices.push( 0, 0, 0 );\n\t\t\tcolors.push( color.r, color.g, color.b );\n\n\t\t\tif ( pointMap[ id ] === undefined ) {\n\n\t\t\t\tpointMap[ id ] = [];\n\n\t\t\t}\n\n\t\t\tpointMap[ id ].push( ( vertices.length / 3 ) - 1 );\n\n\t\t}\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t\tthis.camera = camera;\n\t\tif ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();\n\n\t\tthis.matrix = camera.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.pointMap = pointMap;\n\n\t\tthis.update();\n\n\t}\n\n\tCameraHelper.prototype = Object.create( LineSegments.prototype );\n\tCameraHelper.prototype.constructor = CameraHelper;\n\n\tCameraHelper.prototype.update = function () {\n\n\t\tvar geometry, pointMap;\n\n\t\tvar vector = new Vector3();\n\t\tvar camera = new Camera();\n\n\t\tfunction setPoint( point, x, y, z ) {\n\n\t\t\tvector.set( x, y, z ).unproject( camera );\n\n\t\t\tvar points = pointMap[ point ];\n\n\t\t\tif ( points !== undefined ) {\n\n\t\t\t\tvar position = geometry.getAttribute( 'position' );\n\n\t\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\t\tposition.setXYZ( points[ i ], vector.x, vector.y, vector.z );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn function update() {\n\n\t\t\tgeometry = this.geometry;\n\t\t\tpointMap = this.pointMap;\n\n\t\t\tvar w = 1, h = 1;\n\n\t\t\t// we need just camera projection matrix\n\t\t\t// world matrix must be identity\n\n\t\t\tcamera.projectionMatrix.copy( this.camera.projectionMatrix );\n\n\t\t\t// center / target\n\n\t\t\tsetPoint( 'c', 0, 0, - 1 );\n\t\t\tsetPoint( 't', 0, 0, 1 );\n\n\t\t\t// near\n\n\t\t\tsetPoint( 'n1', - w, - h, - 1 );\n\t\t\tsetPoint( 'n2', w, - h, - 1 );\n\t\t\tsetPoint( 'n3', - w, h, - 1 );\n\t\t\tsetPoint( 'n4', w, h, - 1 );\n\n\t\t\t// far\n\n\t\t\tsetPoint( 'f1', - w, - h, 1 );\n\t\t\tsetPoint( 'f2', w, - h, 1 );\n\t\t\tsetPoint( 'f3', - w, h, 1 );\n\t\t\tsetPoint( 'f4', w, h, 1 );\n\n\t\t\t// up\n\n\t\t\tsetPoint( 'u1', w * 0.7, h * 1.1, - 1 );\n\t\t\tsetPoint( 'u2', - w * 0.7, h * 1.1, - 1 );\n\t\t\tsetPoint( 'u3', 0, h * 2, - 1 );\n\n\t\t\t// cross\n\n\t\t\tsetPoint( 'cf1', - w, 0, 1 );\n\t\t\tsetPoint( 'cf2', w, 0, 1 );\n\t\t\tsetPoint( 'cf3', 0, - h, 1 );\n\t\t\tsetPoint( 'cf4', 0, h, 1 );\n\n\t\t\tsetPoint( 'cn1', - w, 0, - 1 );\n\t\t\tsetPoint( 'cn2', w, 0, - 1 );\n\t\t\tsetPoint( 'cn3', 0, - h, - 1 );\n\t\t\tsetPoint( 'cn4', 0, h, - 1 );\n\n\t\t\tgeometry.getAttribute( 'position' ).needsUpdate = true;\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Mugen87 / http://github.com/Mugen87\n\t */\n\n\tfunction BoxHelper( object, color ) {\n\n\t\tthis.object = object;\n\n\t\tif ( color === undefined ) color = 0xffff00;\n\n\t\tvar indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );\n\t\tvar positions = new Float32Array( 8 * 3 );\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.setIndex( new BufferAttribute( indices, 1 ) );\n\t\tgeometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );\n\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\t}\n\n\tBoxHelper.prototype = Object.create( LineSegments.prototype );\n\tBoxHelper.prototype.constructor = BoxHelper;\n\n\tBoxHelper.prototype.update = ( function () {\n\n\t\tvar box = new Box3();\n\n\t\treturn function update( object ) {\n\n\t\t\tif ( object !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );\n\n\t\t\t}\n\n\t\t\tif ( this.object !== undefined ) {\n\n\t\t\t\tbox.setFromObject( this.object );\n\n\t\t\t}\n\n\t\t\tif ( box.isEmpty() ) return;\n\n\t\t\tvar min = box.min;\n\t\t\tvar max = box.max;\n\n\t\t\t/*\n\t\t\t 5____4\n\t\t\t1/___0/|\n\t\t\t| 6__|_7\n\t\t\t2/___3/\n\n\t\t\t0: max.x, max.y, max.z\n\t\t\t1: min.x, max.y, max.z\n\t\t\t2: min.x, min.y, max.z\n\t\t\t3: max.x, min.y, max.z\n\t\t\t4: max.x, max.y, min.z\n\t\t\t5: min.x, max.y, min.z\n\t\t\t6: min.x, min.y, min.z\n\t\t\t7: max.x, min.y, min.z\n\t\t\t*/\n\n\t\t\tvar position = this.geometry.attributes.position;\n\t\t\tvar array = position.array;\n\n\t\t\tarray[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;\n\t\t\tarray[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;\n\t\t\tarray[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;\n\t\t\tarray[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;\n\t\t\tarray[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;\n\t\t\tarray[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;\n\t\t\tarray[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;\n\t\t\tarray[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t\tthis.geometry.computeBoundingSphere();\n\n\t\t};\n\n\t} )();\n\n\tBoxHelper.prototype.setFromObject = function ( object ) {\n\n\t\tthis.object = object;\n\t\tthis.update();\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Box3Helper( box, hex ) {\n\n\t\tthis.type = 'Box3Helper';\n\n\t\tthis.box = box;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xffff00;\n\n\t\tvar indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );\n\n\t\tvar positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tgeometry.setIndex( new BufferAttribute( indices, 1 ) );\n\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );\n\n\t\tthis.geometry.computeBoundingSphere();\n\n\t}\n\n\tBox3Helper.prototype = Object.create( LineSegments.prototype );\n\tBox3Helper.prototype.constructor = Box3Helper;\n\n\tBox3Helper.prototype.updateMatrixWorld = function ( force ) {\n\n\t\tvar box = this.box;\n\n\t\tif ( box.isEmpty() ) return;\n\n\t\tbox.getCenter( this.position );\n\n\t\tbox.getSize( this.scale );\n\n\t\tthis.scale.multiplyScalar( 0.5 );\n\n\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction PlaneHelper( plane, size, hex ) {\n\n\t\tthis.type = 'PlaneHelper';\n\n\t\tthis.plane = plane;\n\n\t\tthis.size = ( size === undefined ) ? 1 : size;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xffff00;\n\n\t\tvar positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );\n\t\tgeometry.computeBoundingSphere();\n\n\t\tLine.call( this, geometry, new LineBasicMaterial( { color: color } ) );\n\n\t\t//\n\n\t\tvar positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];\n\n\t\tvar geometry2 = new BufferGeometry();\n\t\tgeometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );\n\t\tgeometry2.computeBoundingSphere();\n\n\t\tthis.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false } ) ) );\n\n\t}\n\n\tPlaneHelper.prototype = Object.create( Line.prototype );\n\tPlaneHelper.prototype.constructor = PlaneHelper;\n\n\tPlaneHelper.prototype.updateMatrixWorld = function ( force ) {\n\n\t\tvar scale = - this.plane.constant;\n\n\t\tif ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter\n\n\t\tthis.scale.set( 0.5 * this.size, 0.5 * this.size, scale );\n\n\t\tthis.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here\n\n\t\tthis.lookAt( this.plane.normal );\n\n\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author zz85 / http://github.com/zz85\n\t * @author bhouston / http://clara.io\n\t *\n\t * Creates an arrow for visualizing directions\n\t *\n\t * Parameters:\n\t * dir - Vector3\n\t * origin - Vector3\n\t * length - Number\n\t * color - color in hex value\n\t * headLength - Number\n\t * headWidth - Number\n\t */\n\n\tvar lineGeometry, coneGeometry;\n\n\tfunction ArrowHelper( dir, origin, length, color, headLength, headWidth ) {\n\n\t\t// dir is assumed to be normalized\n\n\t\tObject3D.call( this );\n\n\t\tif ( color === undefined ) color = 0xffff00;\n\t\tif ( length === undefined ) length = 1;\n\t\tif ( headLength === undefined ) headLength = 0.2 * length;\n\t\tif ( headWidth === undefined ) headWidth = 0.2 * headLength;\n\n\t\tif ( lineGeometry === undefined ) {\n\n\t\t\tlineGeometry = new BufferGeometry();\n\t\t\tlineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );\n\n\t\t\tconeGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );\n\t\t\tconeGeometry.translate( 0, - 0.5, 0 );\n\n\t\t}\n\n\t\tthis.position.copy( origin );\n\n\t\tthis.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );\n\t\tthis.line.matrixAutoUpdate = false;\n\t\tthis.add( this.line );\n\n\t\tthis.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );\n\t\tthis.cone.matrixAutoUpdate = false;\n\t\tthis.add( this.cone );\n\n\t\tthis.setDirection( dir );\n\t\tthis.setLength( length, headLength, headWidth );\n\n\t}\n\n\tArrowHelper.prototype = Object.create( Object3D.prototype );\n\tArrowHelper.prototype.constructor = ArrowHelper;\n\n\tArrowHelper.prototype.setDirection = ( function () {\n\n\t\tvar axis = new Vector3();\n\t\tvar radians;\n\n\t\treturn function setDirection( dir ) {\n\n\t\t\t// dir is assumed to be normalized\n\n\t\t\tif ( dir.y > 0.99999 ) {\n\n\t\t\t\tthis.quaternion.set( 0, 0, 0, 1 );\n\n\t\t\t} else if ( dir.y < - 0.99999 ) {\n\n\t\t\t\tthis.quaternion.set( 1, 0, 0, 0 );\n\n\t\t\t} else {\n\n\t\t\t\taxis.set( dir.z, 0, - dir.x ).normalize();\n\n\t\t\t\tradians = Math.acos( dir.y );\n\n\t\t\t\tthis.quaternion.setFromAxisAngle( axis, radians );\n\n\t\t\t}\n\n\t\t};\n\n\t}() );\n\n\tArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {\n\n\t\tif ( headLength === undefined ) headLength = 0.2 * length;\n\t\tif ( headWidth === undefined ) headWidth = 0.2 * headLength;\n\n\t\tthis.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );\n\t\tthis.line.updateMatrix();\n\n\t\tthis.cone.scale.set( headWidth, headLength, headWidth );\n\t\tthis.cone.position.y = length;\n\t\tthis.cone.updateMatrix();\n\n\t};\n\n\tArrowHelper.prototype.setColor = function ( color ) {\n\n\t\tthis.line.material.color.copy( color );\n\t\tthis.cone.material.color.copy( color );\n\n\t};\n\n\t/**\n\t * @author sroucheray / http://sroucheray.org/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AxesHelper( size ) {\n\n\t\tsize = size || 1;\n\n\t\tvar vertices = [\n\t\t\t0, 0, 0,\tsize, 0, 0,\n\t\t\t0, 0, 0,\t0, size, 0,\n\t\t\t0, 0, 0,\t0, 0, size\n\t\t];\n\n\t\tvar colors = [\n\t\t\t1, 0, 0,\t1, 0.6, 0,\n\t\t\t0, 1, 0,\t0.6, 1, 0,\n\t\t\t0, 0, 1,\t0, 0.6, 1\n\t\t];\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tAxesHelper.prototype = Object.create( LineSegments.prototype );\n\tAxesHelper.prototype.constructor = AxesHelper;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Face4( a, b, c, d, normal, color, materialIndex ) {\n\n\t\tconsole.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );\n\t\treturn new Face3( a, b, c, normal, color, materialIndex );\n\n\t}\n\n\tvar LineStrip = 0;\n\n\tvar LinePieces = 1;\n\n\tfunction MeshFaceMaterial( materials ) {\n\n\t\tconsole.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );\n\t\treturn materials;\n\n\t}\n\n\tfunction MultiMaterial( materials ) {\n\n\t\tif ( materials === undefined ) materials = [];\n\n\t\tconsole.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );\n\t\tmaterials.isMultiMaterial = true;\n\t\tmaterials.materials = materials;\n\t\tmaterials.clone = function () {\n\n\t\t\treturn materials.slice();\n\n\t\t};\n\t\treturn materials;\n\n\t}\n\n\tfunction PointCloud( geometry, material ) {\n\n\t\tconsole.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );\n\t\treturn new Points( geometry, material );\n\n\t}\n\n\tfunction Particle( material ) {\n\n\t\tconsole.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );\n\t\treturn new Sprite( material );\n\n\t}\n\n\tfunction ParticleSystem( geometry, material ) {\n\n\t\tconsole.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );\n\t\treturn new Points( geometry, material );\n\n\t}\n\n\tfunction PointCloudMaterial( parameters ) {\n\n\t\tconsole.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\n\t}\n\n\tfunction ParticleBasicMaterial( parameters ) {\n\n\t\tconsole.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\n\t}\n\n\tfunction ParticleSystemMaterial( parameters ) {\n\n\t\tconsole.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\n\t}\n\n\tfunction Vertex( x, y, z ) {\n\n\t\tconsole.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );\n\t\treturn new Vector3( x, y, z );\n\n\t}\n\n\t//\n\n\tfunction DynamicBufferAttribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );\n\t\treturn new BufferAttribute( array, itemSize ).setDynamic( true );\n\n\t}\n\n\tfunction Int8Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );\n\t\treturn new Int8BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint8Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );\n\t\treturn new Uint8BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint8ClampedAttribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );\n\t\treturn new Uint8ClampedBufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Int16Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );\n\t\treturn new Int16BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint16Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );\n\t\treturn new Uint16BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Int32Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );\n\t\treturn new Int32BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Uint32Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );\n\t\treturn new Uint32BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Float32Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );\n\t\treturn new Float32BufferAttribute( array, itemSize );\n\n\t}\n\n\tfunction Float64Attribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );\n\t\treturn new Float64BufferAttribute( array, itemSize );\n\n\t}\n\n\t//\n\n\tCurve.create = function ( construct, getPoint ) {\n\n\t\tconsole.log( 'THREE.Curve.create() has been deprecated' );\n\n\t\tconstruct.prototype = Object.create( Curve.prototype );\n\t\tconstruct.prototype.constructor = construct;\n\t\tconstruct.prototype.getPoint = getPoint;\n\n\t\treturn construct;\n\n\t};\n\n\t//\n\n\tObject.assign( CurvePath.prototype, {\n\n\t\tcreatePointsGeometry: function ( divisions ) {\n\n\t\t\tconsole.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );\n\n\t\t\t// generate geometry from path points (for Line or Points objects)\n\n\t\t\tvar pts = this.getPoints( divisions );\n\t\t\treturn this.createGeometry( pts );\n\n\t\t},\n\n\t\tcreateSpacedPointsGeometry: function ( divisions ) {\n\n\t\t\tconsole.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );\n\n\t\t\t// generate geometry from equidistant sampling along the path\n\n\t\t\tvar pts = this.getSpacedPoints( divisions );\n\t\t\treturn this.createGeometry( pts );\n\n\t\t},\n\n\t\tcreateGeometry: function ( points ) {\n\n\t\t\tconsole.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );\n\n\t\t\tvar geometry = new Geometry();\n\n\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tvar point = points[ i ];\n\t\t\t\tgeometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );\n\n\t\t\t}\n\n\t\t\treturn geometry;\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( Path.prototype, {\n\n\t\tfromPoints: function ( points ) {\n\n\t\t\tconsole.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );\n\t\t\tthis.setFromPoints( points );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tfunction ClosedSplineCurve3( points ) {\n\n\t\tconsole.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );\n\n\t\tCatmullRomCurve3.call( this, points );\n\t\tthis.type = 'catmullrom';\n\t\tthis.closed = true;\n\n\t}\n\n\tClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );\n\n\t//\n\n\tfunction SplineCurve3( points ) {\n\n\t\tconsole.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );\n\n\t\tCatmullRomCurve3.call( this, points );\n\t\tthis.type = 'catmullrom';\n\n\t}\n\n\tSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );\n\n\t//\n\n\tfunction Spline( points ) {\n\n\t\tconsole.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );\n\n\t\tCatmullRomCurve3.call( this, points );\n\t\tthis.type = 'catmullrom';\n\n\t}\n\n\tSpline.prototype = Object.create( CatmullRomCurve3.prototype );\n\n\tObject.assign( Spline.prototype, {\n\n\t\tinitFromArray: function ( /* a */ ) {\n\n\t\t\tconsole.error( 'THREE.Spline: .initFromArray() has been removed.' );\n\n\t\t},\n\t\tgetControlPointsArray: function ( /* optionalTarget */ ) {\n\n\t\t\tconsole.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );\n\n\t\t},\n\t\treparametrizeByArcLength: function ( /* samplingCoef */ ) {\n\n\t\t\tconsole.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tfunction AxisHelper( size ) {\n\n\t\tconsole.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );\n\t\treturn new AxesHelper( size );\n\n\t}\n\n\tfunction BoundingBoxHelper( object, color ) {\n\n\t\tconsole.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );\n\t\treturn new BoxHelper( object, color );\n\n\t}\n\n\tfunction EdgesHelper( object, hex ) {\n\n\t\tconsole.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );\n\t\treturn new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );\n\n\t}\n\n\tGridHelper.prototype.setColors = function () {\n\n\t\tconsole.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );\n\n\t};\n\n\tSkeletonHelper.prototype.update = function () {\n\n\t\tconsole.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );\n\n\t};\n\n\tfunction WireframeHelper( object, hex ) {\n\n\t\tconsole.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );\n\t\treturn new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );\n\n\t}\n\n\t//\n\n\tObject.assign( Loader.prototype, {\n\n\t\textractUrlBase: function ( url ) {\n\n\t\t\tconsole.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' );\n\t\t\treturn LoaderUtils.extractUrlBase( url );\n\n\t\t}\n\n\t} );\n\n\tfunction XHRLoader( manager ) {\n\n\t\tconsole.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );\n\t\treturn new FileLoader( manager );\n\n\t}\n\n\tfunction BinaryTextureLoader( manager ) {\n\n\t\tconsole.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );\n\t\treturn new DataTextureLoader( manager );\n\n\t}\n\n\t//\n\n\tObject.assign( Box2.prototype, {\n\n\t\tcenter: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );\n\t\t\treturn this.getCenter( optionalTarget );\n\n\t\t},\n\t\tempty: function () {\n\n\t\t\tconsole.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );\n\t\t\treturn this.isEmpty();\n\n\t\t},\n\t\tisIntersectionBox: function ( box ) {\n\n\t\t\tconsole.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\n\t\t},\n\t\tsize: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );\n\t\t\treturn this.getSize( optionalTarget );\n\n\t\t}\n\t} );\n\n\tObject.assign( Box3.prototype, {\n\n\t\tcenter: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );\n\t\t\treturn this.getCenter( optionalTarget );\n\n\t\t},\n\t\tempty: function () {\n\n\t\t\tconsole.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );\n\t\t\treturn this.isEmpty();\n\n\t\t},\n\t\tisIntersectionBox: function ( box ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\n\t\t},\n\t\tisIntersectionSphere: function ( sphere ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );\n\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t},\n\t\tsize: function ( optionalTarget ) {\n\n\t\t\tconsole.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );\n\t\t\treturn this.getSize( optionalTarget );\n\n\t\t}\n\t} );\n\n\tLine3.prototype.center = function ( optionalTarget ) {\n\n\t\tconsole.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );\n\t\treturn this.getCenter( optionalTarget );\n\n\t};\n\n\tObject.assign( _Math, {\n\n\t\trandom16: function () {\n\n\t\t\tconsole.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' );\n\t\t\treturn Math.random();\n\n\t\t},\n\n\t\tnearestPowerOfTwo: function ( value ) {\n\n\t\t\tconsole.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' );\n\t\t\treturn _Math.floorPowerOfTwo( value );\n\n\t\t},\n\n\t\tnextPowerOfTwo: function ( value ) {\n\n\t\t\tconsole.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' );\n\t\t\treturn _Math.ceilPowerOfTwo( value );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Matrix3.prototype, {\n\n\t\tflattenToArrayOffset: function ( array, offset ) {\n\n\t\t\tconsole.warn( \"THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.\" );\n\t\t\treturn this.toArray( array, offset );\n\n\t\t},\n\t\tmultiplyVector3: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix3( this );\n\n\t\t},\n\t\tmultiplyVector3Array: function ( /* a */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );\n\n\t\t},\n\t\tapplyToBuffer: function ( buffer /*, offset, length */ ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );\n\t\t\treturn this.applyToBufferAttribute( buffer );\n\n\t\t},\n\t\tapplyToVector3Array: function ( /* array, offset, length */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Matrix4.prototype, {\n\n\t\textractPosition: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );\n\t\t\treturn this.copyPosition( m );\n\n\t\t},\n\t\tflattenToArrayOffset: function ( array, offset ) {\n\n\t\t\tconsole.warn( \"THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.\" );\n\t\t\treturn this.toArray( array, offset );\n\n\t\t},\n\t\tgetPosition: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function getPosition() {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );\n\t\t\t\treturn v1.setFromMatrixColumn( this, 3 );\n\n\t\t\t};\n\n\t\t}(),\n\t\tsetRotationFromQuaternion: function ( q ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );\n\t\t\treturn this.makeRotationFromQuaternion( q );\n\n\t\t},\n\t\tmultiplyToArray: function () {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );\n\n\t\t},\n\t\tmultiplyVector3: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\n\t\t},\n\t\tmultiplyVector4: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\n\t\t},\n\t\tmultiplyVector3Array: function ( /* a */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );\n\n\t\t},\n\t\trotateAxis: function ( v ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );\n\t\t\tv.transformDirection( this );\n\n\t\t},\n\t\tcrossVector: function ( vector ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\n\t\t},\n\t\ttranslate: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .translate() has been removed.' );\n\n\t\t},\n\t\trotateX: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateX() has been removed.' );\n\n\t\t},\n\t\trotateY: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateY() has been removed.' );\n\n\t\t},\n\t\trotateZ: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateZ() has been removed.' );\n\n\t\t},\n\t\trotateByAxis: function () {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );\n\n\t\t},\n\t\tapplyToBuffer: function ( buffer /*, offset, length */ ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );\n\t\t\treturn this.applyToBufferAttribute( buffer );\n\n\t\t},\n\t\tapplyToVector3Array: function ( /* array, offset, length */ ) {\n\n\t\t\tconsole.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );\n\n\t\t},\n\t\tmakeFrustum: function ( left, right, bottom, top, near, far ) {\n\n\t\t\tconsole.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );\n\t\t\treturn this.makePerspective( left, right, top, bottom, near, far );\n\n\t\t}\n\n\t} );\n\n\tPlane.prototype.isIntersectionLine = function ( line ) {\n\n\t\tconsole.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );\n\t\treturn this.intersectsLine( line );\n\n\t};\n\n\tQuaternion.prototype.multiplyVector3 = function ( vector ) {\n\n\t\tconsole.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );\n\t\treturn vector.applyQuaternion( this );\n\n\t};\n\n\tObject.assign( Ray.prototype, {\n\n\t\tisIntersectionBox: function ( box ) {\n\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\n\t\t},\n\t\tisIntersectionPlane: function ( plane ) {\n\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );\n\t\t\treturn this.intersectsPlane( plane );\n\n\t\t},\n\t\tisIntersectionSphere: function ( sphere ) {\n\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );\n\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Triangle.prototype, {\n\n\t\tarea: function () {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' );\n\t\t\treturn this.getArea();\n\n\t\t},\n\t\tbarycoordFromPoint: function ( point, target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );\n\t\t\treturn this.getBarycoord( point, target );\n\n\t\t},\n\t\tmidpoint: function ( target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' );\n\t\t\treturn this.getMidpoint( target );\n\n\t\t},\n\t\tnormal: function ( target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );\n\t\t\treturn this.getNormal( target );\n\n\t\t},\n\t\tplane: function ( target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' );\n\t\t\treturn this.getPlane( target );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Triangle, {\n\n\t\tbarycoordFromPoint: function ( point, a, b, c, target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );\n\t\t\treturn Triangle.getBarycoord( point, a, b, c, target );\n\n\t\t},\n\t\tnormal: function ( a, b, c, target ) {\n\n\t\t\tconsole.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );\n\t\t\treturn Triangle.getNormal( a, b, c, target );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Shape.prototype, {\n\n\t\textractAllPoints: function ( divisions ) {\n\n\t\t\tconsole.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );\n\t\t\treturn this.extractPoints( divisions );\n\n\t\t},\n\t\textrude: function ( options ) {\n\n\t\t\tconsole.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );\n\t\t\treturn new ExtrudeGeometry( this, options );\n\n\t\t},\n\t\tmakeGeometry: function ( options ) {\n\n\t\t\tconsole.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );\n\t\t\treturn new ShapeGeometry( this, options );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector2.prototype, {\n\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tconsole.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );\n\t\t\treturn this.fromBufferAttribute( attribute, index, offset );\n\n\t\t},\n\t\tdistanceToManhattan: function ( v ) {\n\n\t\t\tconsole.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );\n\t\t\treturn this.manhattanDistanceTo( v );\n\n\t\t},\n\t\tlengthManhattan: function () {\n\n\t\t\tconsole.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );\n\t\t\treturn this.manhattanLength();\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector3.prototype, {\n\n\t\tsetEulerFromRotationMatrix: function () {\n\n\t\t\tconsole.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );\n\n\t\t},\n\t\tsetEulerFromQuaternion: function () {\n\n\t\t\tconsole.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );\n\n\t\t},\n\t\tgetPositionFromMatrix: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );\n\t\t\treturn this.setFromMatrixPosition( m );\n\n\t\t},\n\t\tgetScaleFromMatrix: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );\n\t\t\treturn this.setFromMatrixScale( m );\n\n\t\t},\n\t\tgetColumnFromMatrix: function ( index, matrix ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );\n\t\t\treturn this.setFromMatrixColumn( matrix, index );\n\n\t\t},\n\t\tapplyProjection: function ( m ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );\n\t\t\treturn this.applyMatrix4( m );\n\n\t\t},\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );\n\t\t\treturn this.fromBufferAttribute( attribute, index, offset );\n\n\t\t},\n\t\tdistanceToManhattan: function ( v ) {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );\n\t\t\treturn this.manhattanDistanceTo( v );\n\n\t\t},\n\t\tlengthManhattan: function () {\n\n\t\t\tconsole.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );\n\t\t\treturn this.manhattanLength();\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Vector4.prototype, {\n\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tconsole.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );\n\t\t\treturn this.fromBufferAttribute( attribute, index, offset );\n\n\t\t},\n\t\tlengthManhattan: function () {\n\n\t\t\tconsole.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );\n\t\t\treturn this.manhattanLength();\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( Geometry.prototype, {\n\n\t\tcomputeTangents: function () {\n\n\t\t\tconsole.error( 'THREE.Geometry: .computeTangents() has been removed.' );\n\n\t\t},\n\t\tcomputeLineDistances: function () {\n\n\t\t\tconsole.error( 'THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.' );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( Object3D.prototype, {\n\n\t\tgetChildByName: function ( name ) {\n\n\t\t\tconsole.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );\n\t\t\treturn this.getObjectByName( name );\n\n\t\t},\n\t\trenderDepth: function () {\n\n\t\t\tconsole.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );\n\n\t\t},\n\t\ttranslate: function ( distance, axis ) {\n\n\t\t\tconsole.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );\n\t\t\treturn this.translateOnAxis( axis, distance );\n\n\t\t},\n\t\tgetWorldRotation: function () {\n\n\t\t\tconsole.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( Object3D.prototype, {\n\n\t\teulerOrder: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );\n\t\t\t\treturn this.rotation.order;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );\n\t\t\t\tthis.rotation.order = value;\n\n\t\t\t}\n\t\t},\n\t\tuseQuaternion: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( LOD.prototype, {\n\n\t\tobjects: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.LOD: .objects has been renamed to .levels.' );\n\t\t\t\treturn this.levels;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperty( Skeleton.prototype, 'useVertexTexture', {\n\n\t\tget: function () {\n\n\t\t\tconsole.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );\n\n\t\t},\n\t\tset: function () {\n\n\t\t\tconsole.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperty( Curve.prototype, '__arcLengthDivisions', {\n\n\t\tget: function () {\n\n\t\t\tconsole.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );\n\t\t\treturn this.arcLengthDivisions;\n\n\t\t},\n\t\tset: function ( value ) {\n\n\t\t\tconsole.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );\n\t\t\tthis.arcLengthDivisions = value;\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tPerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {\n\n\t\tconsole.warn( \"THREE.PerspectiveCamera.setLens is deprecated. \" +\n\t\t\t\t\"Use .setFocalLength and .filmGauge for a photographic setup.\" );\n\n\t\tif ( filmGauge !== undefined ) this.filmGauge = filmGauge;\n\t\tthis.setFocalLength( focalLength );\n\n\t};\n\n\t//\n\n\tObject.defineProperties( Light.prototype, {\n\t\tonlyShadow: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .onlyShadow has been removed.' );\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraFov: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );\n\t\t\t\tthis.shadow.camera.fov = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraLeft: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );\n\t\t\t\tthis.shadow.camera.left = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraRight: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );\n\t\t\t\tthis.shadow.camera.right = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraTop: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );\n\t\t\t\tthis.shadow.camera.top = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraBottom: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );\n\t\t\t\tthis.shadow.camera.bottom = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraNear: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );\n\t\t\t\tthis.shadow.camera.near = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraFar: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );\n\t\t\t\tthis.shadow.camera.far = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowCameraVisible: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );\n\n\t\t\t}\n\t\t},\n\t\tshadowBias: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );\n\t\t\t\tthis.shadow.bias = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowDarkness: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowDarkness has been removed.' );\n\n\t\t\t}\n\t\t},\n\t\tshadowMapWidth: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );\n\t\t\t\tthis.shadow.mapSize.width = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowMapHeight: {\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );\n\t\t\t\tthis.shadow.mapSize.height = value;\n\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tObject.defineProperties( BufferAttribute.prototype, {\n\n\t\tlength: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );\n\t\t\t\treturn this.array.length;\n\n\t\t\t}\n\t\t},\n\t\tcopyIndicesArray: function ( /* indices */ ) {\n\n\t\t\tconsole.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.assign( BufferGeometry.prototype, {\n\n\t\taddIndex: function ( index ) {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );\n\t\t\tthis.setIndex( index );\n\n\t\t},\n\t\taddDrawCall: function ( start, count, indexOffset ) {\n\n\t\t\tif ( indexOffset !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );\n\n\t\t\t}\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );\n\t\t\tthis.addGroup( start, count );\n\n\t\t},\n\t\tclearDrawCalls: function () {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );\n\t\t\tthis.clearGroups();\n\n\t\t},\n\t\tcomputeTangents: function () {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );\n\n\t\t},\n\t\tcomputeOffsets: function () {\n\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( BufferGeometry.prototype, {\n\n\t\tdrawcalls: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );\n\t\t\t\treturn this.groups;\n\n\t\t\t}\n\t\t},\n\t\toffsets: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );\n\t\t\t\treturn this.groups;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( ExtrudeBufferGeometry.prototype, {\n\n\t\tgetArrays: function () {\n\n\t\t\tconsole.error( 'THREE.ExtrudeBufferGeometry: .getArrays() has been removed.' );\n\n\t\t},\n\n\t\taddShapeList: function () {\n\n\t\t\tconsole.error( 'THREE.ExtrudeBufferGeometry: .addShapeList() has been removed.' );\n\n\t\t},\n\n\t\taddShape: function () {\n\n\t\t\tconsole.error( 'THREE.ExtrudeBufferGeometry: .addShape() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( Uniform.prototype, {\n\n\t\tdynamic: {\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );\n\n\t\t\t}\n\t\t},\n\t\tonUpdate: {\n\t\t\tvalue: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );\n\t\t\t\treturn this;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( Material.prototype, {\n\n\t\twrapAround: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Material: .wrapAround has been removed.' );\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Material: .wrapAround has been removed.' );\n\n\t\t\t}\n\t\t},\n\t\twrapRGB: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.Material: .wrapRGB has been removed.' );\n\t\t\t\treturn new Color();\n\n\t\t\t}\n\t\t},\n\n\t\tshading: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );\n\t\t\t\tthis.flatShading = ( value === FlatShading );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( MeshPhongMaterial.prototype, {\n\n\t\tmetal: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );\n\t\t\t\treturn false;\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( ShaderMaterial.prototype, {\n\n\t\tderivatives: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );\n\t\t\t\treturn this.extensions.derivatives;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );\n\t\t\t\tthis.extensions.derivatives = value;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.assign( WebGLRenderer.prototype, {\n\n\t\tanimate: function ( callback ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' );\n\t\t\tthis.setAnimationLoop( callback );\n\n\t\t},\n\n\t\tgetCurrentRenderTarget: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );\n\t\t\treturn this.getRenderTarget();\n\n\t\t},\n\n\t\tgetMaxAnisotropy: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );\n\t\t\treturn this.capabilities.getMaxAnisotropy();\n\n\t\t},\n\n\t\tgetPrecision: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );\n\t\t\treturn this.capabilities.precision;\n\n\t\t},\n\n\t\tresetGLState: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );\n\t\t\treturn this.state.reset();\n\n\t\t},\n\n\t\tsupportsFloatTextures: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \\'OES_texture_float\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_texture_float' );\n\n\t\t},\n\t\tsupportsHalfFloatTextures: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \\'OES_texture_half_float\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_texture_half_float' );\n\n\t\t},\n\t\tsupportsStandardDerivatives: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \\'OES_standard_derivatives\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_standard_derivatives' );\n\n\t\t},\n\t\tsupportsCompressedTextureS3TC: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \\'WEBGL_compressed_texture_s3tc\\' ).' );\n\t\t\treturn this.extensions.get( 'WEBGL_compressed_texture_s3tc' );\n\n\t\t},\n\t\tsupportsCompressedTexturePVRTC: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \\'WEBGL_compressed_texture_pvrtc\\' ).' );\n\t\t\treturn this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );\n\n\t\t},\n\t\tsupportsBlendMinMax: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \\'EXT_blend_minmax\\' ).' );\n\t\t\treturn this.extensions.get( 'EXT_blend_minmax' );\n\n\t\t},\n\t\tsupportsVertexTextures: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );\n\t\t\treturn this.capabilities.vertexTextures;\n\n\t\t},\n\t\tsupportsInstancedArrays: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \\'ANGLE_instanced_arrays\\' ).' );\n\t\t\treturn this.extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t},\n\t\tenableScissorTest: function ( boolean ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );\n\t\t\tthis.setScissorTest( boolean );\n\n\t\t},\n\t\tinitMaterial: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );\n\n\t\t},\n\t\taddPrePlugin: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );\n\n\t\t},\n\t\taddPostPlugin: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );\n\n\t\t},\n\t\tupdateShadowMap: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );\n\n\t\t},\n\t\tsetFaceCulling: function () {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' );\n\n\t\t}\n\n\t} );\n\n\tObject.defineProperties( WebGLRenderer.prototype, {\n\n\t\tshadowMapEnabled: {\n\t\t\tget: function () {\n\n\t\t\t\treturn this.shadowMap.enabled;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );\n\t\t\t\tthis.shadowMap.enabled = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowMapType: {\n\t\t\tget: function () {\n\n\t\t\t\treturn this.shadowMap.type;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );\n\t\t\t\tthis.shadowMap.type = value;\n\n\t\t\t}\n\t\t},\n\t\tshadowMapCullFace: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function ( /* value */ ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t}\n\t} );\n\n\tObject.defineProperties( WebGLShadowMap.prototype, {\n\n\t\tcullFace: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function ( /* cullFace */ ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t},\n\t\trenderReverseSided: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t},\n\t\trenderSingleSided: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );\n\t\t\t\treturn undefined;\n\n\t\t\t},\n\t\t\tset: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( WebGLRenderTarget.prototype, {\n\n\t\twrapS: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );\n\t\t\t\treturn this.texture.wrapS;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );\n\t\t\t\tthis.texture.wrapS = value;\n\n\t\t\t}\n\t\t},\n\t\twrapT: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );\n\t\t\t\treturn this.texture.wrapT;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );\n\t\t\t\tthis.texture.wrapT = value;\n\n\t\t\t}\n\t\t},\n\t\tmagFilter: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );\n\t\t\t\treturn this.texture.magFilter;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );\n\t\t\t\tthis.texture.magFilter = value;\n\n\t\t\t}\n\t\t},\n\t\tminFilter: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );\n\t\t\t\treturn this.texture.minFilter;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );\n\t\t\t\tthis.texture.minFilter = value;\n\n\t\t\t}\n\t\t},\n\t\tanisotropy: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );\n\t\t\t\treturn this.texture.anisotropy;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );\n\t\t\t\tthis.texture.anisotropy = value;\n\n\t\t\t}\n\t\t},\n\t\toffset: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );\n\t\t\t\treturn this.texture.offset;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );\n\t\t\t\tthis.texture.offset = value;\n\n\t\t\t}\n\t\t},\n\t\trepeat: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );\n\t\t\t\treturn this.texture.repeat;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );\n\t\t\t\tthis.texture.repeat = value;\n\n\t\t\t}\n\t\t},\n\t\tformat: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );\n\t\t\t\treturn this.texture.format;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );\n\t\t\t\tthis.texture.format = value;\n\n\t\t\t}\n\t\t},\n\t\ttype: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );\n\t\t\t\treturn this.texture.type;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );\n\t\t\t\tthis.texture.type = value;\n\n\t\t\t}\n\t\t},\n\t\tgenerateMipmaps: {\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );\n\t\t\t\treturn this.texture.generateMipmaps;\n\n\t\t\t},\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );\n\t\t\t\tthis.texture.generateMipmaps = value;\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tObject.defineProperties( WebVRManager.prototype, {\n\n\t\tstanding: {\n\t\t\tset: function ( /* value */ ) {\n\n\t\t\t\tconsole.warn( 'THREE.WebVRManager: .standing has been removed.' );\n\n\t\t\t}\n\t\t}\n\n\t} );\n\n\t//\n\n\tAudio.prototype.load = function ( file ) {\n\n\t\tconsole.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );\n\t\tvar scope = this;\n\t\tvar audioLoader = new AudioLoader();\n\t\taudioLoader.load( file, function ( buffer ) {\n\n\t\t\tscope.setBuffer( buffer );\n\n\t\t} );\n\t\treturn this;\n\n\t};\n\n\tAudioAnalyser.prototype.getData = function () {\n\n\t\tconsole.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );\n\t\treturn this.getFrequencyData();\n\n\t};\n\n\t//\n\n\tCubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {\n\n\t\tconsole.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );\n\t\treturn this.update( renderer, scene );\n\n\t};\n\n\t//\n\n\tvar GeometryUtils = {\n\n\t\tmerge: function ( geometry1, geometry2, materialIndexOffset ) {\n\n\t\t\tconsole.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );\n\t\t\tvar matrix;\n\n\t\t\tif ( geometry2.isMesh ) {\n\n\t\t\t\tgeometry2.matrixAutoUpdate && geometry2.updateMatrix();\n\n\t\t\t\tmatrix = geometry2.matrix;\n\t\t\t\tgeometry2 = geometry2.geometry;\n\n\t\t\t}\n\n\t\t\tgeometry1.merge( geometry2, matrix, materialIndexOffset );\n\n\t\t},\n\n\t\tcenter: function ( geometry ) {\n\n\t\t\tconsole.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );\n\t\t\treturn geometry.center();\n\n\t\t}\n\n\t};\n\n\tImageUtils.crossOrigin = undefined;\n\n\tImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) {\n\n\t\tconsole.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );\n\n\t\tvar loader = new TextureLoader();\n\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\tvar texture = loader.load( url, onLoad, undefined, onError );\n\n\t\tif ( mapping ) texture.mapping = mapping;\n\n\t\treturn texture;\n\n\t};\n\n\tImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) {\n\n\t\tconsole.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );\n\n\t\tvar loader = new CubeTextureLoader();\n\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\tvar texture = loader.load( urls, onLoad, undefined, onError );\n\n\t\tif ( mapping ) texture.mapping = mapping;\n\n\t\treturn texture;\n\n\t};\n\n\tImageUtils.loadCompressedTexture = function () {\n\n\t\tconsole.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );\n\n\t};\n\n\tImageUtils.loadCompressedTextureCube = function () {\n\n\t\tconsole.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );\n\n\t};\n\n\t//\n\n\tfunction Projector() {\n\n\t\tconsole.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );\n\n\t\tthis.projectVector = function ( vector, camera ) {\n\n\t\t\tconsole.warn( 'THREE.Projector: .projectVector() is now vector.project().' );\n\t\t\tvector.project( camera );\n\n\t\t};\n\n\t\tthis.unprojectVector = function ( vector, camera ) {\n\n\t\t\tconsole.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );\n\t\t\tvector.unproject( camera );\n\n\t\t};\n\n\t\tthis.pickingRay = function () {\n\n\t\t\tconsole.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );\n\n\t\t};\n\n\t}\n\n\t//\n\n\tfunction CanvasRenderer() {\n\n\t\tconsole.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );\n\n\t\tthis.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\tthis.clear = function () {};\n\t\tthis.render = function () {};\n\t\tthis.setClearColor = function () {};\n\t\tthis.setSize = function () {};\n\n\t}\n\n\t//\n\n\tvar SceneUtils = {\n\n\t\tcreateMultiMaterialObject: function ( /* geometry, materials */ ) {\n\n\t\t\tconsole.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );\n\n\t\t},\n\n\t\tdetach: function ( /* child, parent, scene */ ) {\n\n\t\t\tconsole.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );\n\n\t\t},\n\n\t\tattach: function ( /* child, scene, parent */ ) {\n\n\t\t\tconsole.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );\n\n\t\t}\n\n\t};\n\n\t//\n\n\tfunction LensFlare() {\n\n\t\tconsole.error( 'THREE.LensFlare has been moved to /examples/js/objects/Lensflare.js' );\n\n\t}\n\n\texports.WebGLRenderTargetCube = WebGLRenderTargetCube;\n\texports.WebGLRenderTarget = WebGLRenderTarget;\n\texports.WebGLRenderer = WebGLRenderer;\n\texports.ShaderLib = ShaderLib;\n\texports.UniformsLib = UniformsLib;\n\texports.UniformsUtils = UniformsUtils;\n\texports.ShaderChunk = ShaderChunk;\n\texports.FogExp2 = FogExp2;\n\texports.Fog = Fog;\n\texports.Scene = Scene;\n\texports.Sprite = Sprite;\n\texports.LOD = LOD;\n\texports.SkinnedMesh = SkinnedMesh;\n\texports.Skeleton = Skeleton;\n\texports.Bone = Bone;\n\texports.Mesh = Mesh;\n\texports.LineSegments = LineSegments;\n\texports.LineLoop = LineLoop;\n\texports.Line = Line;\n\texports.Points = Points;\n\texports.Group = Group;\n\texports.VideoTexture = VideoTexture;\n\texports.DataTexture = DataTexture;\n\texports.CompressedTexture = CompressedTexture;\n\texports.CubeTexture = CubeTexture;\n\texports.CanvasTexture = CanvasTexture;\n\texports.DepthTexture = DepthTexture;\n\texports.Texture = Texture;\n\texports.CompressedTextureLoader = CompressedTextureLoader;\n\texports.DataTextureLoader = DataTextureLoader;\n\texports.CubeTextureLoader = CubeTextureLoader;\n\texports.TextureLoader = TextureLoader;\n\texports.ObjectLoader = ObjectLoader;\n\texports.MaterialLoader = MaterialLoader;\n\texports.BufferGeometryLoader = BufferGeometryLoader;\n\texports.DefaultLoadingManager = DefaultLoadingManager;\n\texports.LoadingManager = LoadingManager;\n\texports.JSONLoader = JSONLoader;\n\texports.ImageLoader = ImageLoader;\n\texports.ImageBitmapLoader = ImageBitmapLoader;\n\texports.FontLoader = FontLoader;\n\texports.FileLoader = FileLoader;\n\texports.Loader = Loader;\n\texports.LoaderUtils = LoaderUtils;\n\texports.Cache = Cache;\n\texports.AudioLoader = AudioLoader;\n\texports.SpotLightShadow = SpotLightShadow;\n\texports.SpotLight = SpotLight;\n\texports.PointLight = PointLight;\n\texports.RectAreaLight = RectAreaLight;\n\texports.HemisphereLight = HemisphereLight;\n\texports.DirectionalLightShadow = DirectionalLightShadow;\n\texports.DirectionalLight = DirectionalLight;\n\texports.AmbientLight = AmbientLight;\n\texports.LightShadow = LightShadow;\n\texports.Light = Light;\n\texports.StereoCamera = StereoCamera;\n\texports.PerspectiveCamera = PerspectiveCamera;\n\texports.OrthographicCamera = OrthographicCamera;\n\texports.CubeCamera = CubeCamera;\n\texports.ArrayCamera = ArrayCamera;\n\texports.Camera = Camera;\n\texports.AudioListener = AudioListener;\n\texports.PositionalAudio = PositionalAudio;\n\texports.AudioContext = AudioContext;\n\texports.AudioAnalyser = AudioAnalyser;\n\texports.Audio = Audio;\n\texports.VectorKeyframeTrack = VectorKeyframeTrack;\n\texports.StringKeyframeTrack = StringKeyframeTrack;\n\texports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;\n\texports.NumberKeyframeTrack = NumberKeyframeTrack;\n\texports.ColorKeyframeTrack = ColorKeyframeTrack;\n\texports.BooleanKeyframeTrack = BooleanKeyframeTrack;\n\texports.PropertyMixer = PropertyMixer;\n\texports.PropertyBinding = PropertyBinding;\n\texports.KeyframeTrack = KeyframeTrack;\n\texports.AnimationUtils = AnimationUtils;\n\texports.AnimationObjectGroup = AnimationObjectGroup;\n\texports.AnimationMixer = AnimationMixer;\n\texports.AnimationClip = AnimationClip;\n\texports.Uniform = Uniform;\n\texports.InstancedBufferGeometry = InstancedBufferGeometry;\n\texports.BufferGeometry = BufferGeometry;\n\texports.Geometry = Geometry;\n\texports.InterleavedBufferAttribute = InterleavedBufferAttribute;\n\texports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;\n\texports.InterleavedBuffer = InterleavedBuffer;\n\texports.InstancedBufferAttribute = InstancedBufferAttribute;\n\texports.Face3 = Face3;\n\texports.Object3D = Object3D;\n\texports.Raycaster = Raycaster;\n\texports.Layers = Layers;\n\texports.EventDispatcher = EventDispatcher;\n\texports.Clock = Clock;\n\texports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;\n\texports.LinearInterpolant = LinearInterpolant;\n\texports.DiscreteInterpolant = DiscreteInterpolant;\n\texports.CubicInterpolant = CubicInterpolant;\n\texports.Interpolant = Interpolant;\n\texports.Triangle = Triangle;\n\texports.Math = _Math;\n\texports.Spherical = Spherical;\n\texports.Cylindrical = Cylindrical;\n\texports.Plane = Plane;\n\texports.Frustum = Frustum;\n\texports.Sphere = Sphere;\n\texports.Ray = Ray;\n\texports.Matrix4 = Matrix4;\n\texports.Matrix3 = Matrix3;\n\texports.Box3 = Box3;\n\texports.Box2 = Box2;\n\texports.Line3 = Line3;\n\texports.Euler = Euler;\n\texports.Vector4 = Vector4;\n\texports.Vector3 = Vector3;\n\texports.Vector2 = Vector2;\n\texports.Quaternion = Quaternion;\n\texports.Color = Color;\n\texports.ImmediateRenderObject = ImmediateRenderObject;\n\texports.VertexNormalsHelper = VertexNormalsHelper;\n\texports.SpotLightHelper = SpotLightHelper;\n\texports.SkeletonHelper = SkeletonHelper;\n\texports.PointLightHelper = PointLightHelper;\n\texports.RectAreaLightHelper = RectAreaLightHelper;\n\texports.HemisphereLightHelper = HemisphereLightHelper;\n\texports.GridHelper = GridHelper;\n\texports.PolarGridHelper = PolarGridHelper;\n\texports.FaceNormalsHelper = FaceNormalsHelper;\n\texports.DirectionalLightHelper = DirectionalLightHelper;\n\texports.CameraHelper = CameraHelper;\n\texports.BoxHelper = BoxHelper;\n\texports.Box3Helper = Box3Helper;\n\texports.PlaneHelper = PlaneHelper;\n\texports.ArrowHelper = ArrowHelper;\n\texports.AxesHelper = AxesHelper;\n\texports.Shape = Shape;\n\texports.Path = Path;\n\texports.ShapePath = ShapePath;\n\texports.Font = Font;\n\texports.CurvePath = CurvePath;\n\texports.Curve = Curve;\n\texports.ImageUtils = ImageUtils;\n\texports.ShapeUtils = ShapeUtils;\n\texports.WebGLUtils = WebGLUtils;\n\texports.WireframeGeometry = WireframeGeometry;\n\texports.ParametricGeometry = ParametricGeometry;\n\texports.ParametricBufferGeometry = ParametricBufferGeometry;\n\texports.TetrahedronGeometry = TetrahedronGeometry;\n\texports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;\n\texports.OctahedronGeometry = OctahedronGeometry;\n\texports.OctahedronBufferGeometry = OctahedronBufferGeometry;\n\texports.IcosahedronGeometry = IcosahedronGeometry;\n\texports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;\n\texports.DodecahedronGeometry = DodecahedronGeometry;\n\texports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;\n\texports.PolyhedronGeometry = PolyhedronGeometry;\n\texports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;\n\texports.TubeGeometry = TubeGeometry;\n\texports.TubeBufferGeometry = TubeBufferGeometry;\n\texports.TorusKnotGeometry = TorusKnotGeometry;\n\texports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;\n\texports.TorusGeometry = TorusGeometry;\n\texports.TorusBufferGeometry = TorusBufferGeometry;\n\texports.TextGeometry = TextGeometry;\n\texports.TextBufferGeometry = TextBufferGeometry;\n\texports.SphereGeometry = SphereGeometry;\n\texports.SphereBufferGeometry = SphereBufferGeometry;\n\texports.RingGeometry = RingGeometry;\n\texports.RingBufferGeometry = RingBufferGeometry;\n\texports.PlaneGeometry = PlaneGeometry;\n\texports.PlaneBufferGeometry = PlaneBufferGeometry;\n\texports.LatheGeometry = LatheGeometry;\n\texports.LatheBufferGeometry = LatheBufferGeometry;\n\texports.ShapeGeometry = ShapeGeometry;\n\texports.ShapeBufferGeometry = ShapeBufferGeometry;\n\texports.ExtrudeGeometry = ExtrudeGeometry;\n\texports.ExtrudeBufferGeometry = ExtrudeBufferGeometry;\n\texports.EdgesGeometry = EdgesGeometry;\n\texports.ConeGeometry = ConeGeometry;\n\texports.ConeBufferGeometry = ConeBufferGeometry;\n\texports.CylinderGeometry = CylinderGeometry;\n\texports.CylinderBufferGeometry = CylinderBufferGeometry;\n\texports.CircleGeometry = CircleGeometry;\n\texports.CircleBufferGeometry = CircleBufferGeometry;\n\texports.BoxGeometry = BoxGeometry;\n\texports.BoxBufferGeometry = BoxBufferGeometry;\n\texports.ShadowMaterial = ShadowMaterial;\n\texports.SpriteMaterial = SpriteMaterial;\n\texports.RawShaderMaterial = RawShaderMaterial;\n\texports.ShaderMaterial = ShaderMaterial;\n\texports.PointsMaterial = PointsMaterial;\n\texports.MeshPhysicalMaterial = MeshPhysicalMaterial;\n\texports.MeshStandardMaterial = MeshStandardMaterial;\n\texports.MeshPhongMaterial = MeshPhongMaterial;\n\texports.MeshToonMaterial = MeshToonMaterial;\n\texports.MeshNormalMaterial = MeshNormalMaterial;\n\texports.MeshLambertMaterial = MeshLambertMaterial;\n\texports.MeshDepthMaterial = MeshDepthMaterial;\n\texports.MeshDistanceMaterial = MeshDistanceMaterial;\n\texports.MeshBasicMaterial = MeshBasicMaterial;\n\texports.LineDashedMaterial = LineDashedMaterial;\n\texports.LineBasicMaterial = LineBasicMaterial;\n\texports.Material = Material;\n\texports.Float64BufferAttribute = Float64BufferAttribute;\n\texports.Float32BufferAttribute = Float32BufferAttribute;\n\texports.Uint32BufferAttribute = Uint32BufferAttribute;\n\texports.Int32BufferAttribute = Int32BufferAttribute;\n\texports.Uint16BufferAttribute = Uint16BufferAttribute;\n\texports.Int16BufferAttribute = Int16BufferAttribute;\n\texports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;\n\texports.Uint8BufferAttribute = Uint8BufferAttribute;\n\texports.Int8BufferAttribute = Int8BufferAttribute;\n\texports.BufferAttribute = BufferAttribute;\n\texports.ArcCurve = ArcCurve;\n\texports.CatmullRomCurve3 = CatmullRomCurve3;\n\texports.CubicBezierCurve = CubicBezierCurve;\n\texports.CubicBezierCurve3 = CubicBezierCurve3;\n\texports.EllipseCurve = EllipseCurve;\n\texports.LineCurve = LineCurve;\n\texports.LineCurve3 = LineCurve3;\n\texports.QuadraticBezierCurve = QuadraticBezierCurve;\n\texports.QuadraticBezierCurve3 = QuadraticBezierCurve3;\n\texports.SplineCurve = SplineCurve;\n\texports.REVISION = REVISION;\n\texports.MOUSE = MOUSE;\n\texports.CullFaceNone = CullFaceNone;\n\texports.CullFaceBack = CullFaceBack;\n\texports.CullFaceFront = CullFaceFront;\n\texports.CullFaceFrontBack = CullFaceFrontBack;\n\texports.FrontFaceDirectionCW = FrontFaceDirectionCW;\n\texports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;\n\texports.BasicShadowMap = BasicShadowMap;\n\texports.PCFShadowMap = PCFShadowMap;\n\texports.PCFSoftShadowMap = PCFSoftShadowMap;\n\texports.FrontSide = FrontSide;\n\texports.BackSide = BackSide;\n\texports.DoubleSide = DoubleSide;\n\texports.FlatShading = FlatShading;\n\texports.SmoothShading = SmoothShading;\n\texports.NoColors = NoColors;\n\texports.FaceColors = FaceColors;\n\texports.VertexColors = VertexColors;\n\texports.NoBlending = NoBlending;\n\texports.NormalBlending = NormalBlending;\n\texports.AdditiveBlending = AdditiveBlending;\n\texports.SubtractiveBlending = SubtractiveBlending;\n\texports.MultiplyBlending = MultiplyBlending;\n\texports.CustomBlending = CustomBlending;\n\texports.AddEquation = AddEquation;\n\texports.SubtractEquation = SubtractEquation;\n\texports.ReverseSubtractEquation = ReverseSubtractEquation;\n\texports.MinEquation = MinEquation;\n\texports.MaxEquation = MaxEquation;\n\texports.ZeroFactor = ZeroFactor;\n\texports.OneFactor = OneFactor;\n\texports.SrcColorFactor = SrcColorFactor;\n\texports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;\n\texports.SrcAlphaFactor = SrcAlphaFactor;\n\texports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;\n\texports.DstAlphaFactor = DstAlphaFactor;\n\texports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;\n\texports.DstColorFactor = DstColorFactor;\n\texports.OneMinusDstColorFactor = OneMinusDstColorFactor;\n\texports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;\n\texports.NeverDepth = NeverDepth;\n\texports.AlwaysDepth = AlwaysDepth;\n\texports.LessDepth = LessDepth;\n\texports.LessEqualDepth = LessEqualDepth;\n\texports.EqualDepth = EqualDepth;\n\texports.GreaterEqualDepth = GreaterEqualDepth;\n\texports.GreaterDepth = GreaterDepth;\n\texports.NotEqualDepth = NotEqualDepth;\n\texports.MultiplyOperation = MultiplyOperation;\n\texports.MixOperation = MixOperation;\n\texports.AddOperation = AddOperation;\n\texports.NoToneMapping = NoToneMapping;\n\texports.LinearToneMapping = LinearToneMapping;\n\texports.ReinhardToneMapping = ReinhardToneMapping;\n\texports.Uncharted2ToneMapping = Uncharted2ToneMapping;\n\texports.CineonToneMapping = CineonToneMapping;\n\texports.UVMapping = UVMapping;\n\texports.CubeReflectionMapping = CubeReflectionMapping;\n\texports.CubeRefractionMapping = CubeRefractionMapping;\n\texports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;\n\texports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;\n\texports.SphericalReflectionMapping = SphericalReflectionMapping;\n\texports.CubeUVReflectionMapping = CubeUVReflectionMapping;\n\texports.CubeUVRefractionMapping = CubeUVRefractionMapping;\n\texports.RepeatWrapping = RepeatWrapping;\n\texports.ClampToEdgeWrapping = ClampToEdgeWrapping;\n\texports.MirroredRepeatWrapping = MirroredRepeatWrapping;\n\texports.NearestFilter = NearestFilter;\n\texports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;\n\texports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;\n\texports.LinearFilter = LinearFilter;\n\texports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;\n\texports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;\n\texports.UnsignedByteType = UnsignedByteType;\n\texports.ByteType = ByteType;\n\texports.ShortType = ShortType;\n\texports.UnsignedShortType = UnsignedShortType;\n\texports.IntType = IntType;\n\texports.UnsignedIntType = UnsignedIntType;\n\texports.FloatType = FloatType;\n\texports.HalfFloatType = HalfFloatType;\n\texports.UnsignedShort4444Type = UnsignedShort4444Type;\n\texports.UnsignedShort5551Type = UnsignedShort5551Type;\n\texports.UnsignedShort565Type = UnsignedShort565Type;\n\texports.UnsignedInt248Type = UnsignedInt248Type;\n\texports.AlphaFormat = AlphaFormat;\n\texports.RGBFormat = RGBFormat;\n\texports.RGBAFormat = RGBAFormat;\n\texports.LuminanceFormat = LuminanceFormat;\n\texports.LuminanceAlphaFormat = LuminanceAlphaFormat;\n\texports.RGBEFormat = RGBEFormat;\n\texports.DepthFormat = DepthFormat;\n\texports.DepthStencilFormat = DepthStencilFormat;\n\texports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;\n\texports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;\n\texports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;\n\texports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;\n\texports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;\n\texports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;\n\texports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;\n\texports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;\n\texports.RGB_ETC1_Format = RGB_ETC1_Format;\n\texports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;\n\texports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;\n\texports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;\n\texports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;\n\texports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;\n\texports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;\n\texports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;\n\texports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;\n\texports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;\n\texports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;\n\texports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;\n\texports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;\n\texports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;\n\texports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;\n\texports.LoopOnce = LoopOnce;\n\texports.LoopRepeat = LoopRepeat;\n\texports.LoopPingPong = LoopPingPong;\n\texports.InterpolateDiscrete = InterpolateDiscrete;\n\texports.InterpolateLinear = InterpolateLinear;\n\texports.InterpolateSmooth = InterpolateSmooth;\n\texports.ZeroCurvatureEnding = ZeroCurvatureEnding;\n\texports.ZeroSlopeEnding = ZeroSlopeEnding;\n\texports.WrapAroundEnding = WrapAroundEnding;\n\texports.TrianglesDrawMode = TrianglesDrawMode;\n\texports.TriangleStripDrawMode = TriangleStripDrawMode;\n\texports.TriangleFanDrawMode = TriangleFanDrawMode;\n\texports.LinearEncoding = LinearEncoding;\n\texports.sRGBEncoding = sRGBEncoding;\n\texports.GammaEncoding = GammaEncoding;\n\texports.RGBEEncoding = RGBEEncoding;\n\texports.LogLuvEncoding = LogLuvEncoding;\n\texports.RGBM7Encoding = RGBM7Encoding;\n\texports.RGBM16Encoding = RGBM16Encoding;\n\texports.RGBDEncoding = RGBDEncoding;\n\texports.BasicDepthPacking = BasicDepthPacking;\n\texports.RGBADepthPacking = RGBADepthPacking;\n\texports.TangentSpaceNormalMap = TangentSpaceNormalMap;\n\texports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;\n\texports.CubeGeometry = BoxGeometry;\n\texports.Face4 = Face4;\n\texports.LineStrip = LineStrip;\n\texports.LinePieces = LinePieces;\n\texports.MeshFaceMaterial = MeshFaceMaterial;\n\texports.MultiMaterial = MultiMaterial;\n\texports.PointCloud = PointCloud;\n\texports.Particle = Particle;\n\texports.ParticleSystem = ParticleSystem;\n\texports.PointCloudMaterial = PointCloudMaterial;\n\texports.ParticleBasicMaterial = ParticleBasicMaterial;\n\texports.ParticleSystemMaterial = ParticleSystemMaterial;\n\texports.Vertex = Vertex;\n\texports.DynamicBufferAttribute = DynamicBufferAttribute;\n\texports.Int8Attribute = Int8Attribute;\n\texports.Uint8Attribute = Uint8Attribute;\n\texports.Uint8ClampedAttribute = Uint8ClampedAttribute;\n\texports.Int16Attribute = Int16Attribute;\n\texports.Uint16Attribute = Uint16Attribute;\n\texports.Int32Attribute = Int32Attribute;\n\texports.Uint32Attribute = Uint32Attribute;\n\texports.Float32Attribute = Float32Attribute;\n\texports.Float64Attribute = Float64Attribute;\n\texports.ClosedSplineCurve3 = ClosedSplineCurve3;\n\texports.SplineCurve3 = SplineCurve3;\n\texports.Spline = Spline;\n\texports.AxisHelper = AxisHelper;\n\texports.BoundingBoxHelper = BoundingBoxHelper;\n\texports.EdgesHelper = EdgesHelper;\n\texports.WireframeHelper = WireframeHelper;\n\texports.XHRLoader = XHRLoader;\n\texports.BinaryTextureLoader = BinaryTextureLoader;\n\texports.GeometryUtils = GeometryUtils;\n\texports.Projector = Projector;\n\texports.CanvasRenderer = CanvasRenderer;\n\texports.SceneUtils = SceneUtils;\n\texports.LensFlare = LensFlare;\n\n\tObject.defineProperty(exports, '__esModule', { value: true });\n\n})));\n", "/**\n * @author mrdoob / http://mrdoob.com/\n * @author Mugen87 / https://github.com/Mugen87\n */\n\nTHREE.ColladaLoader = function ( manager ) {\n\n\tthis.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;\n\n};\n\nTHREE.ColladaLoader.prototype = {\n\n\tconstructor: THREE.ColladaLoader,\n\n\tcrossOrigin: 'anonymous',\n\n\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\tvar scope = this;\n\n\t\tvar path = scope.path === undefined ? THREE.LoaderUtils.extractUrlBase( url ) : scope.path;\n\n\t\tvar loader = new THREE.FileLoader( scope.manager );\n\t\tloader.load( url, function ( text ) {\n\n\t\t\tonLoad( scope.parse( text, path ) );\n\n\t\t}, onProgress, onError );\n\n\t},\n\n\tsetPath: function ( value ) {\n\n\t\tthis.path = value;\n\t\treturn this;\n\n\t},\n\n\toptions: {\n\n\t\tset convertUpAxis( value ) {\n\n\t\t\tconsole.warn( 'THREE.ColladaLoader: options.convertUpAxis() has been removed. Up axis is converted automatically.' );\n\n\t\t}\n\n\t},\n\n\tsetCrossOrigin: function ( value ) {\n\n\t\tthis.crossOrigin = value;\n\t\treturn this;\n\n\t},\n\n\tparse: function ( text, path ) {\n\n\t\tfunction getElementsByTagName( xml, name ) {\n\n\t\t\t// Non recursive xml.getElementsByTagName() ...\n\n\t\t\tvar array = [];\n\t\t\tvar childNodes = xml.childNodes;\n\n\t\t\tfor ( var i = 0, l = childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = childNodes[ i ];\n\n\t\t\t\tif ( child.nodeName === name ) {\n\n\t\t\t\t\tarray.push( child );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn array;\n\n\t\t}\n\n\t\tfunction parseStrings( text ) {\n\n\t\t\tif ( text.length === 0 ) return [];\n\n\t\t\tvar parts = text.trim().split( /\\s+/ );\n\t\t\tvar array = new Array( parts.length );\n\n\t\t\tfor ( var i = 0, l = parts.length; i < l; i ++ ) {\n\n\t\t\t\tarray[ i ] = parts[ i ];\n\n\t\t\t}\n\n\t\t\treturn array;\n\n\t\t}\n\n\t\tfunction parseFloats( text ) {\n\n\t\t\tif ( text.length === 0 ) return [];\n\n\t\t\tvar parts = text.trim().split( /\\s+/ );\n\t\t\tvar array = new Array( parts.length );\n\n\t\t\tfor ( var i = 0, l = parts.length; i < l; i ++ ) {\n\n\t\t\t\tarray[ i ] = parseFloat( parts[ i ] );\n\n\t\t\t}\n\n\t\t\treturn array;\n\n\t\t}\n\n\t\tfunction parseInts( text ) {\n\n\t\t\tif ( text.length === 0 ) return [];\n\n\t\t\tvar parts = text.trim().split( /\\s+/ );\n\t\t\tvar array = new Array( parts.length );\n\n\t\t\tfor ( var i = 0, l = parts.length; i < l; i ++ ) {\n\n\t\t\t\tarray[ i ] = parseInt( parts[ i ] );\n\n\t\t\t}\n\n\t\t\treturn array;\n\n\t\t}\n\n\t\tfunction parseId( text ) {\n\n\t\t\treturn text.substring( 1 );\n\n\t\t}\n\n\t\tfunction generateId() {\n\n\t\t\treturn 'three_default_' + ( count ++ );\n\n\t\t}\n\n\t\tfunction isEmpty( object ) {\n\n\t\t\treturn Object.keys( object ).length === 0;\n\n\t\t}\n\n\t\t// asset\n\n\t\tfunction parseAsset( xml ) {\n\n\t\t\treturn {\n\t\t\t\tunit: parseAssetUnit( getElementsByTagName( xml, 'unit' )[ 0 ] ),\n\t\t\t\tupAxis: parseAssetUpAxis( getElementsByTagName( xml, 'up_axis' )[ 0 ] )\n\t\t\t};\n\n\t\t}\n\n\t\tfunction parseAssetUnit( xml ) {\n\n\t\t\tif ( ( xml !== undefined ) && ( xml.hasAttribute( 'meter' ) === true ) ) {\n\n\t\t\t\treturn parseFloat( xml.getAttribute( 'meter' ) );\n\n\t\t\t} else {\n\n\t\t\t\treturn 1; // default 1 meter\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction parseAssetUpAxis( xml ) {\n\n\t\t\treturn xml !== undefined ? xml.textContent : 'Y_UP';\n\n\t\t}\n\n\t\t// library\n\n\t\tfunction parseLibrary( xml, libraryName, nodeName, parser ) {\n\n\t\t\tvar library = getElementsByTagName( xml, libraryName )[ 0 ];\n\n\t\t\tif ( library !== undefined ) {\n\n\t\t\t\tvar elements = getElementsByTagName( library, nodeName );\n\n\t\t\t\tfor ( var i = 0; i < elements.length; i ++ ) {\n\n\t\t\t\t\tparser( elements[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction buildLibrary( data, builder ) {\n\n\t\t\tfor ( var name in data ) {\n\n\t\t\t\tvar object = data[ name ];\n\t\t\t\tobject.build = builder( data[ name ] );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// get\n\n\t\tfunction getBuild( data, builder ) {\n\n\t\t\tif ( data.build !== undefined ) return data.build;\n\n\t\t\tdata.build = builder( data );\n\n\t\t\treturn data.build;\n\n\t\t}\n\n\t\t// animation\n\n\t\tfunction parseAnimation( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tsources: {},\n\t\t\t\tsamplers: {},\n\t\t\t\tchannels: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tvar id;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'source':\n\t\t\t\t\t\tid = child.getAttribute( 'id' );\n\t\t\t\t\t\tdata.sources[ id ] = parseSource( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'sampler':\n\t\t\t\t\t\tid = child.getAttribute( 'id' );\n\t\t\t\t\t\tdata.samplers[ id ] = parseAnimationSampler( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'channel':\n\t\t\t\t\t\tid = child.getAttribute( 'target' );\n\t\t\t\t\t\tdata.channels[ id ] = parseAnimationChannel( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\tconsole.log( child );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.animations[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction parseAnimationSampler( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tinputs: {},\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'input':\n\t\t\t\t\t\tvar id = parseId( child.getAttribute( 'source' ) );\n\t\t\t\t\t\tvar semantic = child.getAttribute( 'semantic' );\n\t\t\t\t\t\tdata.inputs[ semantic ] = id;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseAnimationChannel( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tvar target = xml.getAttribute( 'target' );\n\n\t\t\t// parsing SID Addressing Syntax\n\n\t\t\tvar parts = target.split( '/' );\n\n\t\t\tvar id = parts.shift();\n\t\t\tvar sid = parts.shift();\n\n\t\t\t// check selection syntax\n\n\t\t\tvar arraySyntax = ( sid.indexOf( '(' ) !== - 1 );\n\t\t\tvar memberSyntax = ( sid.indexOf( '.' ) !== - 1 );\n\n\t\t\tif ( memberSyntax ) {\n\n\t\t\t\t// member selection access\n\n\t\t\t\tparts = sid.split( '.' );\n\t\t\t\tsid = parts.shift();\n\t\t\t\tdata.member = parts.shift();\n\n\t\t\t} else if ( arraySyntax ) {\n\n\t\t\t\t// array-access syntax. can be used to express fields in one-dimensional vectors or two-dimensional matrices.\n\n\t\t\t\tvar indices = sid.split( '(' );\n\t\t\t\tsid = indices.shift();\n\n\t\t\t\tfor ( var i = 0; i < indices.length; i ++ ) {\n\n\t\t\t\t\tindices[ i ] = parseInt( indices[ i ].replace( /\\)/, '' ) );\n\n\t\t\t\t}\n\n\t\t\t\tdata.indices = indices;\n\n\t\t\t}\n\n\t\t\tdata.id = id;\n\t\t\tdata.sid = sid;\n\n\t\t\tdata.arraySyntax = arraySyntax;\n\t\t\tdata.memberSyntax = memberSyntax;\n\n\t\t\tdata.sampler = parseId( xml.getAttribute( 'source' ) );\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction buildAnimation( data ) {\n\n\t\t\tvar tracks = [];\n\n\t\t\tvar channels = data.channels;\n\t\t\tvar samplers = data.samplers;\n\t\t\tvar sources = data.sources;\n\n\t\t\tfor ( var target in channels ) {\n\n\t\t\t\tif ( channels.hasOwnProperty( target ) ) {\n\n\t\t\t\t\tvar channel = channels[ target ];\n\t\t\t\t\tvar sampler = samplers[ channel.sampler ];\n\n\t\t\t\t\tvar inputId = sampler.inputs.INPUT;\n\t\t\t\t\tvar outputId = sampler.inputs.OUTPUT;\n\n\t\t\t\t\tvar inputSource = sources[ inputId ];\n\t\t\t\t\tvar outputSource = sources[ outputId ];\n\n\t\t\t\t\tvar animation = buildAnimationChannel( channel, inputSource, outputSource );\n\n\t\t\t\t\tcreateKeyframeTracks( animation, tracks );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn tracks;\n\n\t\t}\n\n\t\tfunction getAnimation( id ) {\n\n\t\t\treturn getBuild( library.animations[ id ], buildAnimation );\n\n\t\t}\n\n\t\tfunction buildAnimationChannel( channel, inputSource, outputSource ) {\n\n\t\t\tvar node = library.nodes[ channel.id ];\n\t\t\tvar object3D = getNode( node.id );\n\n\t\t\tvar transform = node.transforms[ channel.sid ];\n\t\t\tvar defaultMatrix = node.matrix.clone().transpose();\n\n\t\t\tvar time, stride;\n\t\t\tvar i, il, j, jl;\n\n\t\t\tvar data = {};\n\n\t\t\t// the collada spec allows the animation of data in various ways.\n\t\t\t// depending on the transform type (matrix, translate, rotate, scale), we execute different logic\n\n\t\t\tswitch ( transform ) {\n\n\t\t\t\tcase 'matrix':\n\n\t\t\t\t\tfor ( i = 0, il = inputSource.array.length; i < il; i ++ ) {\n\n\t\t\t\t\t\ttime = inputSource.array[ i ];\n\t\t\t\t\t\tstride = i * outputSource.stride;\n\n\t\t\t\t\t\tif ( data[ time ] === undefined ) data[ time ] = {};\n\n\t\t\t\t\t\tif ( channel.arraySyntax === true ) {\n\n\t\t\t\t\t\t\tvar value = outputSource.array[ stride ];\n\t\t\t\t\t\t\tvar index = channel.indices[ 0 ] + 4 * channel.indices[ 1 ];\n\n\t\t\t\t\t\t\tdata[ time ][ index ] = value;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tfor ( j = 0, jl = outputSource.stride; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tdata[ time ][ j ] = outputSource.array[ stride + j ];\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'translate':\n\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Animation transform type \"%s\" not yet implemented.', transform );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'rotate':\n\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Animation transform type \"%s\" not yet implemented.', transform );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'scale':\n\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Animation transform type \"%s\" not yet implemented.', transform );\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tvar keyframes = prepareAnimationData( data, defaultMatrix );\n\n\t\t\tvar animation = {\n\t\t\t\tname: object3D.uuid,\n\t\t\t\tkeyframes: keyframes\n\t\t\t};\n\n\t\t\treturn animation;\n\n\t\t}\n\n\t\tfunction prepareAnimationData( data, defaultMatrix ) {\n\n\t\t\tvar keyframes = [];\n\n\t\t\t// transfer data into a sortable array\n\n\t\t\tfor ( var time in data ) {\n\n\t\t\t\tkeyframes.push( { time: parseFloat( time ), value: data[ time ] } );\n\n\t\t\t}\n\n\t\t\t// ensure keyframes are sorted by time\n\n\t\t\tkeyframes.sort( ascending );\n\n\t\t\t// now we clean up all animation data, so we can use them for keyframe tracks\n\n\t\t\tfor ( var i = 0; i < 16; i ++ ) {\n\n\t\t\t\ttransformAnimationData( keyframes, i, defaultMatrix.elements[ i ] );\n\n\t\t\t}\n\n\t\t\treturn keyframes;\n\n\t\t\t// array sort function\n\n\t\t\tfunction ascending( a, b ) {\n\n\t\t\t\treturn a.time - b.time;\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar position = new THREE.Vector3();\n\t\tvar scale = new THREE.Vector3();\n\t\tvar quaternion = new THREE.Quaternion();\n\n\t\tfunction createKeyframeTracks( animation, tracks ) {\n\n\t\t\tvar keyframes = animation.keyframes;\n\t\t\tvar name = animation.name;\n\n\t\t\tvar times = [];\n\t\t\tvar positionData = [];\n\t\t\tvar quaternionData = [];\n\t\t\tvar scaleData = [];\n\n\t\t\tfor ( var i = 0, l = keyframes.length; i < l; i ++ ) {\n\n\t\t\t\tvar keyframe = keyframes[ i ];\n\n\t\t\t\tvar time = keyframe.time;\n\t\t\t\tvar value = keyframe.value;\n\n\t\t\t\tmatrix.fromArray( value ).transpose();\n\t\t\t\tmatrix.decompose( position, quaternion, scale );\n\n\t\t\t\ttimes.push( time );\n\t\t\t\tpositionData.push( position.x, position.y, position.z );\n\t\t\t\tquaternionData.push( quaternion.x, quaternion.y, quaternion.z, quaternion.w );\n\t\t\t\tscaleData.push( scale.x, scale.y, scale.z );\n\n\t\t\t}\n\n\t\t\tif ( positionData.length > 0 ) tracks.push( new THREE.VectorKeyframeTrack( name + '.position', times, positionData ) );\n\t\t\tif ( quaternionData.length > 0 ) tracks.push( new THREE.QuaternionKeyframeTrack( name + '.quaternion', times, quaternionData ) );\n\t\t\tif ( scaleData.length > 0 ) tracks.push( new THREE.VectorKeyframeTrack( name + '.scale', times, scaleData ) );\n\n\t\t\treturn tracks;\n\n\t\t}\n\n\t\tfunction transformAnimationData( keyframes, property, defaultValue ) {\n\n\t\t\tvar keyframe;\n\n\t\t\tvar empty = true;\n\t\t\tvar i, l;\n\n\t\t\t// check, if values of a property are missing in our keyframes\n\n\t\t\tfor ( i = 0, l = keyframes.length; i < l; i ++ ) {\n\n\t\t\t\tkeyframe = keyframes[ i ];\n\n\t\t\t\tif ( keyframe.value[ property ] === undefined ) {\n\n\t\t\t\t\tkeyframe.value[ property ] = null; // mark as missing\n\n\t\t\t\t} else {\n\n\t\t\t\t\tempty = false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( empty === true ) {\n\n\t\t\t\t// no values at all, so we set a default value\n\n\t\t\t\tfor ( i = 0, l = keyframes.length; i < l; i ++ ) {\n\n\t\t\t\t\tkeyframe = keyframes[ i ];\n\n\t\t\t\t\tkeyframe.value[ property ] = defaultValue;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// filling gaps\n\n\t\t\t\tcreateMissingKeyframes( keyframes, property );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction createMissingKeyframes( keyframes, property ) {\n\n\t\t\tvar prev, next;\n\n\t\t\tfor ( var i = 0, l = keyframes.length; i < l; i ++ ) {\n\n\t\t\t\tvar keyframe = keyframes[ i ];\n\n\t\t\t\tif ( keyframe.value[ property ] === null ) {\n\n\t\t\t\t\tprev = getPrev( keyframes, i, property );\n\t\t\t\t\tnext = getNext( keyframes, i, property );\n\n\t\t\t\t\tif ( prev === null ) {\n\n\t\t\t\t\t\tkeyframe.value[ property ] = next.value[ property ];\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( next === null ) {\n\n\t\t\t\t\t\tkeyframe.value[ property ] = prev.value[ property ];\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tinterpolate( keyframe, prev, next, property );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getPrev( keyframes, i, property ) {\n\n\t\t\twhile ( i >= 0 ) {\n\n\t\t\t\tvar keyframe = keyframes[ i ];\n\n\t\t\t\tif ( keyframe.value[ property ] !== null ) return keyframe;\n\n\t\t\t\ti --;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t}\n\n\t\tfunction getNext( keyframes, i, property ) {\n\n\t\t\twhile ( i < keyframes.length ) {\n\n\t\t\t\tvar keyframe = keyframes[ i ];\n\n\t\t\t\tif ( keyframe.value[ property ] !== null ) return keyframe;\n\n\t\t\t\ti ++;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t}\n\n\t\tfunction interpolate( key, prev, next, property ) {\n\n\t\t\tif ( ( next.time - prev.time ) === 0 ) {\n\n\t\t\t\tkey.value[ property ] = prev.value[ property ];\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tkey.value[ property ] = ( ( key.time - prev.time ) * ( next.value[ property ] - prev.value[ property ] ) / ( next.time - prev.time ) ) + prev.value[ property ];\n\n\t\t}\n\n\t\t// animation clips\n\n\t\tfunction parseAnimationClip( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'id' ) || 'default',\n\t\t\t\tstart: parseFloat( xml.getAttribute( 'start' ) || 0 ),\n\t\t\t\tend: parseFloat( xml.getAttribute( 'end' ) || 0 ),\n\t\t\t\tanimations: []\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'instance_animation':\n\t\t\t\t\t\tdata.animations.push( parseId( child.getAttribute( 'url' ) ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.clips[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction buildAnimationClip( data ) {\n\n\t\t\tvar tracks = [];\n\n\t\t\tvar name = data.name;\n\t\t\tvar duration = ( data.end - data.start ) || - 1;\n\t\t\tvar animations = data.animations;\n\n\t\t\tfor ( var i = 0, il = animations.length; i < il; i ++ ) {\n\n\t\t\t\tvar animationTracks = getAnimation( animations[ i ] );\n\n\t\t\t\tfor ( var j = 0, jl = animationTracks.length; j < jl; j ++ ) {\n\n\t\t\t\t\ttracks.push( animationTracks[ j ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn new THREE.AnimationClip( name, duration, tracks );\n\n\t\t}\n\n\t\tfunction getAnimationClip( id ) {\n\n\t\t\treturn getBuild( library.clips[ id ], buildAnimationClip );\n\n\t\t}\n\n\t\t// controller\n\n\t\tfunction parseController( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'skin':\n\t\t\t\t\t\t// there is exactly one skin per controller\n\t\t\t\t\t\tdata.id = parseId( child.getAttribute( 'source' ) );\n\t\t\t\t\t\tdata.skin = parseSkin( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'morph':\n\t\t\t\t\t\tdata.id = parseId( child.getAttribute( 'source' ) );\n\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Morph target animation not supported yet.' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.controllers[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction parseSkin( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tsources: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'bind_shape_matrix':\n\t\t\t\t\t\tdata.bindShapeMatrix = parseFloats( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'source':\n\t\t\t\t\t\tvar id = child.getAttribute( 'id' );\n\t\t\t\t\t\tdata.sources[ id ] = parseSource( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'joints':\n\t\t\t\t\t\tdata.joints = parseJoints( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'vertex_weights':\n\t\t\t\t\t\tdata.vertexWeights = parseVertexWeights( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseJoints( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tinputs: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'input':\n\t\t\t\t\t\tvar semantic = child.getAttribute( 'semantic' );\n\t\t\t\t\t\tvar id = parseId( child.getAttribute( 'source' ) );\n\t\t\t\t\t\tdata.inputs[ semantic ] = id;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseVertexWeights( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tinputs: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'input':\n\t\t\t\t\t\tvar semantic = child.getAttribute( 'semantic' );\n\t\t\t\t\t\tvar id = parseId( child.getAttribute( 'source' ) );\n\t\t\t\t\t\tvar offset = parseInt( child.getAttribute( 'offset' ) );\n\t\t\t\t\t\tdata.inputs[ semantic ] = { id: id, offset: offset };\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'vcount':\n\t\t\t\t\t\tdata.vcount = parseInts( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'v':\n\t\t\t\t\t\tdata.v = parseInts( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction buildController( data ) {\n\n\t\t\tvar build = {\n\t\t\t\tid: data.id\n\t\t\t};\n\n\t\t\tvar geometry = library.geometries[ build.id ];\n\n\t\t\tif ( data.skin !== undefined ) {\n\n\t\t\t\tbuild.skin = buildSkin( data.skin );\n\n\t\t\t\t// we enhance the 'sources' property of the corresponding geometry with our skin data\n\n\t\t\t\tgeometry.sources.skinIndices = build.skin.indices;\n\t\t\t\tgeometry.sources.skinWeights = build.skin.weights;\n\n\t\t\t}\n\n\t\t\treturn build;\n\n\t\t}\n\n\t\tfunction buildSkin( data ) {\n\n\t\t\tvar BONE_LIMIT = 4;\n\n\t\t\tvar build = {\n\t\t\t\tjoints: [], // this must be an array to preserve the joint order\n\t\t\t\tindices: {\n\t\t\t\t\tarray: [],\n\t\t\t\t\tstride: BONE_LIMIT\n\t\t\t\t},\n\t\t\t\tweights: {\n\t\t\t\t\tarray: [],\n\t\t\t\t\tstride: BONE_LIMIT\n\t\t\t\t}\n\t\t\t};\n\n\t\t\tvar sources = data.sources;\n\t\t\tvar vertexWeights = data.vertexWeights;\n\n\t\t\tvar vcount = vertexWeights.vcount;\n\t\t\tvar v = vertexWeights.v;\n\t\t\tvar jointOffset = vertexWeights.inputs.JOINT.offset;\n\t\t\tvar weightOffset = vertexWeights.inputs.WEIGHT.offset;\n\n\t\t\tvar jointSource = data.sources[ data.joints.inputs.JOINT ];\n\t\t\tvar inverseSource = data.sources[ data.joints.inputs.INV_BIND_MATRIX ];\n\n\t\t\tvar weights = sources[ vertexWeights.inputs.WEIGHT.id ].array;\n\t\t\tvar stride = 0;\n\n\t\t\tvar i, j, l;\n\n\t\t\t// procces skin data for each vertex\n\n\t\t\tfor ( i = 0, l = vcount.length; i < l; i ++ ) {\n\n\t\t\t\tvar jointCount = vcount[ i ]; // this is the amount of joints that affect a single vertex\n\t\t\t\tvar vertexSkinData = [];\n\n\t\t\t\tfor ( j = 0; j < jointCount; j ++ ) {\n\n\t\t\t\t\tvar skinIndex = v[ stride + jointOffset ];\n\t\t\t\t\tvar weightId = v[ stride + weightOffset ];\n\t\t\t\t\tvar skinWeight = weights[ weightId ];\n\n\t\t\t\t\tvertexSkinData.push( { index: skinIndex, weight: skinWeight } );\n\n\t\t\t\t\tstride += 2;\n\n\t\t\t\t}\n\n\t\t\t\t// we sort the joints in descending order based on the weights.\n\t\t\t\t// this ensures, we only procced the most important joints of the vertex\n\n\t\t\t\tvertexSkinData.sort( descending );\n\n\t\t\t\t// now we provide for each vertex a set of four index and weight values.\n\t\t\t\t// the order of the skin data matches the order of vertices\n\n\t\t\t\tfor ( j = 0; j < BONE_LIMIT; j ++ ) {\n\n\t\t\t\t\tvar d = vertexSkinData[ j ];\n\n\t\t\t\t\tif ( d !== undefined ) {\n\n\t\t\t\t\t\tbuild.indices.array.push( d.index );\n\t\t\t\t\t\tbuild.weights.array.push( d.weight );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tbuild.indices.array.push( 0 );\n\t\t\t\t\t\tbuild.weights.array.push( 0 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// setup bind matrix\n\n\t\t\tif ( data.bindShapeMatrix ) {\n\n\t\t\t\tbuild.bindMatrix = new THREE.Matrix4().fromArray( data.bindShapeMatrix ).transpose();\n\n\t\t\t} else {\n\n\t\t\t\tbuild.bindMatrix = new THREE.Matrix4().identity();\n\n\t\t\t}\n\n\t\t\t// process bones and inverse bind matrix data\n\n\t\t\tfor ( i = 0, l = jointSource.array.length; i < l; i ++ ) {\n\n\t\t\t\tvar name = jointSource.array[ i ];\n\t\t\t\tvar boneInverse = new THREE.Matrix4().fromArray( inverseSource.array, i * inverseSource.stride ).transpose();\n\n\t\t\t\tbuild.joints.push( { name: name, boneInverse: boneInverse } );\n\n\t\t\t}\n\n\t\t\treturn build;\n\n\t\t\t// array sort function\n\n\t\t\tfunction descending( a, b ) {\n\n\t\t\t\treturn b.weight - a.weight;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getController( id ) {\n\n\t\t\treturn getBuild( library.controllers[ id ], buildController );\n\n\t\t}\n\n\t\t// image\n\n\t\tfunction parseImage( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tinit_from: getElementsByTagName( xml, 'init_from' )[ 0 ].textContent\n\t\t\t};\n\n\t\t\tlibrary.images[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction buildImage( data ) {\n\n\t\t\tif ( data.build !== undefined ) return data.build;\n\n\t\t\treturn data.init_from;\n\n\t\t}\n\n\t\tfunction getImage( id ) {\n\n\t\t\tvar data = library.images[ id ];\n\n\t\t\tif ( data !== undefined ) {\n\n\t\t\t\treturn getBuild( data, buildImage );\n\n\t\t\t}\n\n\t\t\tconsole.warn( 'THREE.ColladaLoader: Couldn\\'t find image with ID:', id );\n\n\t\t\treturn null;\n\n\t\t}\n\n\t\t// effect\n\n\t\tfunction parseEffect( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'profile_COMMON':\n\t\t\t\t\t\tdata.profile = parseEffectProfileCOMMON( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.effects[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction parseEffectProfileCOMMON( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tsurfaces: {},\n\t\t\t\tsamplers: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'newparam':\n\t\t\t\t\t\tparseEffectNewparam( child, data );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'technique':\n\t\t\t\t\t\tdata.technique = parseEffectTechnique( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'extra':\n\t\t\t\t\t\tdata.extra = parseEffectExtra( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectNewparam( xml, data ) {\n\n\t\t\tvar sid = xml.getAttribute( 'sid' );\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'surface':\n\t\t\t\t\t\tdata.surfaces[ sid ] = parseEffectSurface( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'sampler2D':\n\t\t\t\t\t\tdata.samplers[ sid ] = parseEffectSampler( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction parseEffectSurface( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'init_from':\n\t\t\t\t\t\tdata.init_from = child.textContent;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectSampler( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'source':\n\t\t\t\t\t\tdata.source = child.textContent;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectTechnique( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'constant':\n\t\t\t\t\tcase 'lambert':\n\t\t\t\t\tcase 'blinn':\n\t\t\t\t\tcase 'phong':\n\t\t\t\t\t\tdata.type = child.nodeName;\n\t\t\t\t\t\tdata.parameters = parseEffectParameters( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectParameters( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'emission':\n\t\t\t\t\tcase 'diffuse':\n\t\t\t\t\tcase 'specular':\n\t\t\t\t\tcase 'shininess':\n\t\t\t\t\tcase 'transparency':\n\t\t\t\t\t\tdata[ child.nodeName ] = parseEffectParameter( child );\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase 'transparent':\n\t\t\t\t\t\tdata[ child.nodeName ] = {\n\t\t\t\t\t\t\topaque: child.getAttribute( 'opaque' ),\n\t\t\t\t\t\t\tdata: parseEffectParameter( child )\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectParameter( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'color':\n\t\t\t\t\t\tdata[ child.nodeName ] = parseFloats( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'float':\n\t\t\t\t\t\tdata[ child.nodeName ] = parseFloat( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'texture':\n\t\t\t\t\t\tdata[ child.nodeName ] = { id: child.getAttribute( 'texture' ), extra: parseEffectParameterTexture( child ) };\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectParameterTexture( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\ttechnique: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'extra':\n\t\t\t\t\t\tparseEffectParameterTextureExtra( child, data );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectParameterTextureExtra( xml, data ) {\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'technique':\n\t\t\t\t\t\tparseEffectParameterTextureExtraTechnique( child, data );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction parseEffectParameterTextureExtraTechnique( xml, data ) {\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'repeatU':\n\t\t\t\t\tcase 'repeatV':\n\t\t\t\t\tcase 'offsetU':\n\t\t\t\t\tcase 'offsetV':\n\t\t\t\t\t\tdata.technique[ child.nodeName ] = parseFloat( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'wrapU':\n\t\t\t\t\tcase 'wrapV':\n\n\t\t\t\t\t\t// some files have values for wrapU/wrapV which become NaN via parseInt\n\n\t\t\t\t\t\tif ( child.textContent.toUpperCase() === 'TRUE' ) {\n\n\t\t\t\t\t\t\tdata.technique[ child.nodeName ] = 1;\n\n\t\t\t\t\t\t} else if ( child.textContent.toUpperCase() === 'FALSE' ) {\n\n\t\t\t\t\t\t\tdata.technique[ child.nodeName ] = 0;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tdata.technique[ child.nodeName ] = parseInt( child.textContent );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction parseEffectExtra( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'technique':\n\t\t\t\t\t\tdata.technique = parseEffectExtraTechnique( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseEffectExtraTechnique( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'double_sided':\n\t\t\t\t\t\tdata[ child.nodeName ] = parseInt( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction buildEffect( data ) {\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction getEffect( id ) {\n\n\t\t\treturn getBuild( library.effects[ id ], buildEffect );\n\n\t\t}\n\n\t\t// material\n\n\t\tfunction parseMaterial( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'name' )\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'instance_effect':\n\t\t\t\t\t\tdata.url = parseId( child.getAttribute( 'url' ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.materials[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction getTextureLoader( image ) {\n\n\t\t\tvar loader;\n\n\t\t\tvar extension = image.slice( ( image.lastIndexOf( '.' ) - 1 >>> 0 ) + 2 ); // http://www.jstips.co/en/javascript/get-file-extension/\n\t\t\textension = extension.toLowerCase();\n\n\t\t\tswitch ( extension ) {\n\n\t\t\t\tcase 'tga':\n\t\t\t\t\tloader = tgaLoader;\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tloader = textureLoader;\n\n\t\t\t}\n\n\t\t\treturn loader;\n\n\t\t}\n\n\t\tfunction buildMaterial( data ) {\n\n\t\t\tvar effect = getEffect( data.url );\n\t\t\tvar technique = effect.profile.technique;\n\t\t\tvar extra = effect.profile.extra;\n\n\t\t\tvar material;\n\n\t\t\tswitch ( technique.type ) {\n\n\t\t\t\tcase 'phong':\n\t\t\t\tcase 'blinn':\n\t\t\t\t\tmaterial = new THREE.MeshPhongMaterial();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'lambert':\n\t\t\t\t\tmaterial = new THREE.MeshLambertMaterial();\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tmaterial = new THREE.MeshBasicMaterial();\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tmaterial.name = data.name;\n\n\t\t\tfunction getTexture( textureObject ) {\n\n\t\t\t\tvar sampler = effect.profile.samplers[ textureObject.id ];\n\t\t\t\tvar image = null;\n\n\t\t\t\t// get image\n\n\t\t\t\tif ( sampler !== undefined ) {\n\n\t\t\t\t\tvar surface = effect.profile.surfaces[ sampler.source ];\n\t\t\t\t\timage = getImage( surface.init_from );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Undefined sampler. Access image directly (see #12530).' );\n\t\t\t\t\timage = getImage( textureObject.id );\n\n\t\t\t\t}\n\n\t\t\t\t// create texture if image is avaiable\n\n\t\t\t\tif ( image !== null ) {\n\n\t\t\t\t\tvar loader = getTextureLoader( image );\n\n\t\t\t\t\tif ( loader !== undefined ) {\n\n\t\t\t\t\t\tvar texture = loader.load( image );\n\n\t\t\t\t\t\tvar extra = textureObject.extra;\n\n\t\t\t\t\t\tif ( extra !== undefined && extra.technique !== undefined && isEmpty( extra.technique ) === false ) {\n\n\t\t\t\t\t\t\tvar technique = extra.technique;\n\n\t\t\t\t\t\t\ttexture.wrapS = technique.wrapU ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;\n\t\t\t\t\t\t\ttexture.wrapT = technique.wrapV ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;\n\n\t\t\t\t\t\t\ttexture.offset.set( technique.offsetU || 0, technique.offsetV || 0 );\n\t\t\t\t\t\t\ttexture.repeat.set( technique.repeatU || 1, technique.repeatV || 1 );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\ttexture.wrapS = THREE.RepeatWrapping;\n\t\t\t\t\t\t\ttexture.wrapT = THREE.RepeatWrapping;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\treturn texture;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Loader for texture %s not found.', image );\n\n\t\t\t\t\t\treturn null;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Couldn\\'t create texture with ID:', textureObject.id );\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar parameters = technique.parameters;\n\n\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\tvar parameter = parameters[ key ];\n\n\t\t\t\tswitch ( key ) {\n\n\t\t\t\t\tcase 'diffuse':\n\t\t\t\t\t\tif ( parameter.color ) material.color.fromArray( parameter.color );\n\t\t\t\t\t\tif ( parameter.texture ) material.map = getTexture( parameter.texture );\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase 'specular':\n\t\t\t\t\t\tif ( parameter.color && material.specular ) material.specular.fromArray( parameter.color );\n\t\t\t\t\t\tif ( parameter.texture ) material.specularMap = getTexture( parameter.texture );\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase 'shininess':\n\t\t\t\t\t\tif ( parameter.float && material.shininess ) material.shininess = parameter.float;\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase 'emission':\n\t\t\t\t\t\tif ( parameter.color && material.emissive ) material.emissive.fromArray( parameter.color );\n\t\t\t\t\t\tif ( parameter.texture ) material.emissiveMap = getTexture( parameter.texture );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar transparent = parameters[ 'transparent' ];\n\t\t\tvar transparency = parameters[ 'transparency' ];\n\n\t\t\t// does not exist but \n\n\t\t\tif ( transparency === undefined && transparent ) {\n\n\t\t\t\ttransparency = {\n\t\t\t\t\tfloat: 1\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\t// does not exist but \n\n\t\t\tif ( transparent === undefined && transparency ) {\n\n\t\t\t\ttransparent = {\n\t\t\t\t\topaque: 'A_ONE',\n\t\t\t\t\tdata: {\n\t\t\t\t\t\tcolor: [ 1, 1, 1, 1 ]\n\t\t\t\t\t} };\n\n\t\t\t}\n\n\t\t\tif ( transparent && transparency ) {\n\n\t\t\t\t// handle case if a texture exists but no color\n\n\t\t\t\tif ( transparent.data.texture ) {\n\n\t\t\t\t\t// we do not set an alpha map (see #13792)\n\n\t\t\t\t\tmaterial.transparent = true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar color = transparent.data.color;\n\n\t\t\t\t\tswitch ( transparent.opaque ) {\n\n\t\t\t\t\t\tcase 'A_ONE':\n\t\t\t\t\t\t\tmaterial.opacity = color[ 3 ] * transparency.float;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'RGB_ZERO':\n\t\t\t\t\t\t\tmaterial.opacity = 1 - ( color[ 0 ] * transparency.float );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'A_ZERO':\n\t\t\t\t\t\t\tmaterial.opacity = 1 - ( color[ 3 ] * transparency.float );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'RGB_ONE':\n\t\t\t\t\t\t\tmaterial.opacity = color[ 0 ] * transparency.float;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Invalid opaque type \"%s\" of transparent tag.', transparent.opaque );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( material.opacity < 1 ) material.transparent = true;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( extra !== undefined && extra.technique !== undefined && extra.technique.double_sided === 1 ) {\n\n\t\t\t\tmaterial.side = THREE.DoubleSide;\n\n\t\t\t}\n\n\t\t\treturn material;\n\n\t\t}\n\n\t\tfunction getMaterial( id ) {\n\n\t\t\treturn getBuild( library.materials[ id ], buildMaterial );\n\n\t\t}\n\n\t\t// camera\n\n\t\tfunction parseCamera( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'name' )\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'optics':\n\t\t\t\t\t\tdata.optics = parseCameraOptics( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.cameras[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction parseCameraOptics( xml ) {\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'technique_common':\n\t\t\t\t\t\treturn parseCameraTechnique( child );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn {};\n\n\t\t}\n\n\t\tfunction parseCameraTechnique( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'perspective':\n\t\t\t\t\tcase 'orthographic':\n\n\t\t\t\t\t\tdata.technique = child.nodeName;\n\t\t\t\t\t\tdata.parameters = parseCameraParameters( child );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseCameraParameters( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'xfov':\n\t\t\t\t\tcase 'yfov':\n\t\t\t\t\tcase 'xmag':\n\t\t\t\t\tcase 'ymag':\n\t\t\t\t\tcase 'znear':\n\t\t\t\t\tcase 'zfar':\n\t\t\t\t\tcase 'aspect_ratio':\n\t\t\t\t\t\tdata[ child.nodeName ] = parseFloat( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction buildCamera( data ) {\n\n\t\t\tvar camera;\n\n\t\t\tswitch ( data.optics.technique ) {\n\n\t\t\t\tcase 'perspective':\n\t\t\t\t\tcamera = new THREE.PerspectiveCamera(\n\t\t\t\t\t\tdata.optics.parameters.yfov,\n\t\t\t\t\t\tdata.optics.parameters.aspect_ratio,\n\t\t\t\t\t\tdata.optics.parameters.znear,\n\t\t\t\t\t\tdata.optics.parameters.zfar\n\t\t\t\t\t);\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'orthographic':\n\t\t\t\t\tvar ymag = data.optics.parameters.ymag;\n\t\t\t\t\tvar xmag = data.optics.parameters.xmag;\n\t\t\t\t\tvar aspectRatio = data.optics.parameters.aspect_ratio;\n\n\t\t\t\t\txmag = ( xmag === undefined ) ? ( ymag * aspectRatio ) : xmag;\n\t\t\t\t\tymag = ( ymag === undefined ) ? ( xmag / aspectRatio ) : ymag;\n\n\t\t\t\t\txmag *= 0.5;\n\t\t\t\t\tymag *= 0.5;\n\n\t\t\t\t\tcamera = new THREE.OrthographicCamera(\n\t\t\t\t\t\t- xmag, xmag, ymag, - ymag, // left, right, top, bottom\n\t\t\t\t\t\tdata.optics.parameters.znear,\n\t\t\t\t\t\tdata.optics.parameters.zfar\n\t\t\t\t\t);\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tcamera = new THREE.PerspectiveCamera();\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tcamera.name = data.name;\n\n\t\t\treturn camera;\n\n\t\t}\n\n\t\tfunction getCamera( id ) {\n\n\t\t\tvar data = library.cameras[ id ];\n\n\t\t\tif ( data !== undefined ) {\n\n\t\t\t\treturn getBuild( data, buildCamera );\n\n\t\t\t}\n\n\t\t\tconsole.warn( 'THREE.ColladaLoader: Couldn\\'t find camera with ID:', id );\n\n\t\t\treturn null;\n\n\t\t}\n\n\t\t// light\n\n\t\tfunction parseLight( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'technique_common':\n\t\t\t\t\t\tdata = parseLightTechnique( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.lights[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction parseLightTechnique( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'directional':\n\t\t\t\t\tcase 'point':\n\t\t\t\t\tcase 'spot':\n\t\t\t\t\tcase 'ambient':\n\n\t\t\t\t\t\tdata.technique = child.nodeName;\n\t\t\t\t\t\tdata.parameters = parseLightParameters( child );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseLightParameters( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'color':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tdata.color = new THREE.Color().fromArray( array );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'falloff_angle':\n\t\t\t\t\t\tdata.falloffAngle = parseFloat( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'quadratic_attenuation':\n\t\t\t\t\t\tvar f = parseFloat( child.textContent );\n\t\t\t\t\t\tdata.distance = f ? Math.sqrt( 1 / f ) : 0;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction buildLight( data ) {\n\n\t\t\tvar light;\n\n\t\t\tswitch ( data.technique ) {\n\n\t\t\t\tcase 'directional':\n\t\t\t\t\tlight = new THREE.DirectionalLight();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'point':\n\t\t\t\t\tlight = new THREE.PointLight();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'spot':\n\t\t\t\t\tlight = new THREE.SpotLight();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'ambient':\n\t\t\t\t\tlight = new THREE.AmbientLight();\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tif ( data.parameters.color ) light.color.copy( data.parameters.color );\n\t\t\tif ( data.parameters.distance ) light.distance = data.parameters.distance;\n\n\t\t\treturn light;\n\n\t\t}\n\n\t\tfunction getLight( id ) {\n\n\t\t\tvar data = library.lights[ id ];\n\n\t\t\tif ( data !== undefined ) {\n\n\t\t\t\treturn getBuild( data, buildLight );\n\n\t\t\t}\n\n\t\t\tconsole.warn( 'THREE.ColladaLoader: Couldn\\'t find light with ID:', id );\n\n\t\t\treturn null;\n\n\t\t}\n\n\t\t// geometry\n\n\t\tfunction parseGeometry( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'name' ),\n\t\t\t\tsources: {},\n\t\t\t\tvertices: {},\n\t\t\t\tprimitives: []\n\t\t\t};\n\n\t\t\tvar mesh = getElementsByTagName( xml, 'mesh' )[ 0 ];\n\n\t\t\t// the following tags inside geometry are not supported yet (see https://github.com/mrdoob/three.js/pull/12606): convex_mesh, spline, brep\n\t\t\tif ( mesh === undefined ) return;\n\n\t\t\tfor ( var i = 0; i < mesh.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = mesh.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tvar id = child.getAttribute( 'id' );\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'source':\n\t\t\t\t\t\tdata.sources[ id ] = parseSource( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'vertices':\n\t\t\t\t\t\t// data.sources[ id ] = data.sources[ parseId( getElementsByTagName( child, 'input' )[ 0 ].getAttribute( 'source' ) ) ];\n\t\t\t\t\t\tdata.vertices = parseGeometryVertices( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'polygons':\n\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Unsupported primitive type: ', child.nodeName );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'lines':\n\t\t\t\t\tcase 'linestrips':\n\t\t\t\t\tcase 'polylist':\n\t\t\t\t\tcase 'triangles':\n\t\t\t\t\t\tdata.primitives.push( parseGeometryPrimitive( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\tconsole.log( child );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.geometries[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction parseSource( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tarray: [],\n\t\t\t\tstride: 3\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'float_array':\n\t\t\t\t\t\tdata.array = parseFloats( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'Name_array':\n\t\t\t\t\t\tdata.array = parseStrings( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'technique_common':\n\t\t\t\t\t\tvar accessor = getElementsByTagName( child, 'accessor' )[ 0 ];\n\n\t\t\t\t\t\tif ( accessor !== undefined ) {\n\n\t\t\t\t\t\t\tdata.stride = parseInt( accessor.getAttribute( 'stride' ) );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseGeometryVertices( xml ) {\n\n\t\t\tvar data = {};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tdata[ child.getAttribute( 'semantic' ) ] = parseId( child.getAttribute( 'source' ) );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseGeometryPrimitive( xml ) {\n\n\t\t\tvar primitive = {\n\t\t\t\ttype: xml.nodeName,\n\t\t\t\tmaterial: xml.getAttribute( 'material' ),\n\t\t\t\tcount: parseInt( xml.getAttribute( 'count' ) ),\n\t\t\t\tinputs: {},\n\t\t\t\tstride: 0,\n\t\t\t\thasUV: false\n\t\t\t};\n\n\t\t\tfor ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'input':\n\t\t\t\t\t\tvar id = parseId( child.getAttribute( 'source' ) );\n\t\t\t\t\t\tvar semantic = child.getAttribute( 'semantic' );\n\t\t\t\t\t\tvar offset = parseInt( child.getAttribute( 'offset' ) );\n\t\t\t\t\t\tprimitive.inputs[ semantic ] = { id: id, offset: offset };\n\t\t\t\t\t\tprimitive.stride = Math.max( primitive.stride, offset + 1 );\n\t\t\t\t\t\tif ( semantic === 'TEXCOORD' ) primitive.hasUV = true;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'vcount':\n\t\t\t\t\t\tprimitive.vcount = parseInts( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'p':\n\t\t\t\t\t\tprimitive.p = parseInts( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn primitive;\n\n\t\t}\n\n\t\tfunction groupPrimitives( primitives ) {\n\n\t\t\tvar build = {};\n\n\t\t\tfor ( var i = 0; i < primitives.length; i ++ ) {\n\n\t\t\t\tvar primitive = primitives[ i ];\n\n\t\t\t\tif ( build[ primitive.type ] === undefined ) build[ primitive.type ] = [];\n\n\t\t\t\tbuild[ primitive.type ].push( primitive );\n\n\t\t\t}\n\n\t\t\treturn build;\n\n\t\t}\n\n\t\tfunction checkUVCoordinates( primitives ) {\n\n\t\t\tvar count = 0;\n\n\t\t\tfor ( var i = 0, l = primitives.length; i < l; i ++ ) {\n\n\t\t\t\tvar primitive = primitives[ i ];\n\n\t\t\t\tif ( primitive.hasUV === true ) {\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( count > 0 && count < primitives.length ) {\n\n\t\t\t\tprimitives.uvsNeedsFix = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction buildGeometry( data ) {\n\n\t\t\tvar build = {};\n\n\t\t\tvar sources = data.sources;\n\t\t\tvar vertices = data.vertices;\n\t\t\tvar primitives = data.primitives;\n\n\t\t\tif ( primitives.length === 0 ) return {};\n\n\t\t\t// our goal is to create one buffer geometry for a single type of primitives\n\t\t\t// first, we group all primitives by their type\n\n\t\t\tvar groupedPrimitives = groupPrimitives( primitives );\n\n\t\t\tfor ( var type in groupedPrimitives ) {\n\n\t\t\t\tvar primitiveType = groupedPrimitives[ type ];\n\n\t\t\t\t// second, ensure consistent uv coordinates for each type of primitives (polylist,triangles or lines)\n\n\t\t\t\tcheckUVCoordinates( primitiveType );\n\n\t\t\t\t// third, create a buffer geometry for each type of primitives\n\n\t\t\t\tbuild[ type ] = buildGeometryType( primitiveType, sources, vertices );\n\n\t\t\t}\n\n\t\t\treturn build;\n\n\t\t}\n\n\t\tfunction buildGeometryType( primitives, sources, vertices ) {\n\n\t\t\tvar build = {};\n\n\t\t\tvar position = { array: [], stride: 0 };\n\t\t\tvar normal = { array: [], stride: 0 };\n\t\t\tvar uv = { array: [], stride: 0 };\n\t\t\tvar color = { array: [], stride: 0 };\n\n\t\t\tvar skinIndex = { array: [], stride: 4 };\n\t\t\tvar skinWeight = { array: [], stride: 4 };\n\n\t\t\tvar geometry = new THREE.BufferGeometry();\n\n\t\t\tvar materialKeys = [];\n\n\t\t\tvar start = 0;\n\n\t\t\tfor ( var p = 0; p < primitives.length; p ++ ) {\n\n\t\t\t\tvar primitive = primitives[ p ];\n\t\t\t\tvar inputs = primitive.inputs;\n\n\t\t\t\t// groups\n\n\t\t\t\tvar count = 0;\n\n\t\t\t\tswitch ( primitive.type ) {\n\n\t\t\t\t\tcase 'lines':\n\t\t\t\t\tcase 'linestrips':\n\t\t\t\t\t\tcount = primitive.count * 2;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'triangles':\n\t\t\t\t\t\tcount = primitive.count * 3;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'polylist':\n\n\t\t\t\t\t\tfor ( var g = 0; g < primitive.count; g ++ ) {\n\n\t\t\t\t\t\t\tvar vc = primitive.vcount[ g ];\n\n\t\t\t\t\t\t\tswitch ( vc ) {\n\n\t\t\t\t\t\t\t\tcase 3:\n\t\t\t\t\t\t\t\t\tcount += 3; // single triangle\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase 4:\n\t\t\t\t\t\t\t\t\tcount += 6; // quad, subdivided into two triangles\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\t\tcount += ( vc - 2 ) * 3; // polylist with more than four vertices\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Unknow primitive type:', primitive.type );\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.addGroup( start, count, p );\n\t\t\t\tstart += count;\n\n\t\t\t\t// material\n\n\t\t\t\tif ( primitive.material ) {\n\n\t\t\t\t\tmaterialKeys.push( primitive.material );\n\n\t\t\t\t}\n\n\t\t\t\t// geometry data\n\n\t\t\t\tfor ( var name in inputs ) {\n\n\t\t\t\t\tvar input = inputs[ name ];\n\n\t\t\t\t\tswitch ( name )\t{\n\n\t\t\t\t\t\tcase 'VERTEX':\n\t\t\t\t\t\t\tfor ( var key in vertices ) {\n\n\t\t\t\t\t\t\t\tvar id = vertices[ key ];\n\n\t\t\t\t\t\t\t\tswitch ( key ) {\n\n\t\t\t\t\t\t\t\t\tcase 'POSITION':\n\t\t\t\t\t\t\t\t\t\tvar prevLength = position.array.length;\n\t\t\t\t\t\t\t\t\t\tbuildGeometryData( primitive, sources[ id ], input.offset, position.array );\n\t\t\t\t\t\t\t\t\t\tposition.stride = sources[ id ].stride;\n\n\t\t\t\t\t\t\t\t\t\tif ( sources.skinWeights && sources.skinIndices ) {\n\n\t\t\t\t\t\t\t\t\t\t\tbuildGeometryData( primitive, sources.skinIndices, input.offset, skinIndex.array );\n\t\t\t\t\t\t\t\t\t\t\tbuildGeometryData( primitive, sources.skinWeights, input.offset, skinWeight.array );\n\n\t\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t\t// see #3803\n\n\t\t\t\t\t\t\t\t\t\tif ( primitive.hasUV === false && primitives.uvsNeedsFix === true ) {\n\n\t\t\t\t\t\t\t\t\t\t\tvar count = ( position.array.length - prevLength ) / position.stride;\n\n\t\t\t\t\t\t\t\t\t\t\tfor ( var i = 0; i < count; i ++ ) {\n\n\t\t\t\t\t\t\t\t\t\t\t\t// fill missing uv coordinates\n\n\t\t\t\t\t\t\t\t\t\t\t\tuv.array.push( 0, 0 );\n\n\t\t\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\tcase 'NORMAL':\n\t\t\t\t\t\t\t\t\t\tbuildGeometryData( primitive, sources[ id ], input.offset, normal.array );\n\t\t\t\t\t\t\t\t\t\tnormal.stride = sources[ id ].stride;\n\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\tcase 'COLOR':\n\t\t\t\t\t\t\t\t\t\tbuildGeometryData( primitive, sources[ id ], input.offset, color.array );\n\t\t\t\t\t\t\t\t\t\tcolor.stride = sources[ id ].stride;\n\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\tcase 'TEXCOORD':\n\t\t\t\t\t\t\t\t\t\tbuildGeometryData( primitive, sources[ id ], input.offset, uv.array );\n\t\t\t\t\t\t\t\t\t\tuv.stride = sources[ id ].stride;\n\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Semantic \"%s\" not handled in geometry build process.', key );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'NORMAL':\n\t\t\t\t\t\t\tbuildGeometryData( primitive, sources[ input.id ], input.offset, normal.array );\n\t\t\t\t\t\t\tnormal.stride = sources[ input.id ].stride;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'COLOR':\n\t\t\t\t\t\t\tbuildGeometryData( primitive, sources[ input.id ], input.offset, color.array );\n\t\t\t\t\t\t\tcolor.stride = sources[ input.id ].stride;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'TEXCOORD':\n\t\t\t\t\t\t\tbuildGeometryData( primitive, sources[ input.id ], input.offset, uv.array );\n\t\t\t\t\t\t\tuv.stride = sources[ input.id ].stride;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// build geometry\n\n\t\t\tif ( position.array.length > 0 ) geometry.addAttribute( 'position', new THREE.Float32BufferAttribute( position.array, position.stride ) );\n\t\t\tif ( normal.array.length > 0 ) geometry.addAttribute( 'normal', new THREE.Float32BufferAttribute( normal.array, normal.stride ) );\n\t\t\tif ( color.array.length > 0 ) geometry.addAttribute( 'color', new THREE.Float32BufferAttribute( color.array, color.stride ) );\n\t\t\tif ( uv.array.length > 0 ) geometry.addAttribute( 'uv', new THREE.Float32BufferAttribute( uv.array, uv.stride ) );\n\n\t\t\tif ( skinIndex.array.length > 0 ) geometry.addAttribute( 'skinIndex', new THREE.Float32BufferAttribute( skinIndex.array, skinIndex.stride ) );\n\t\t\tif ( skinWeight.array.length > 0 ) geometry.addAttribute( 'skinWeight', new THREE.Float32BufferAttribute( skinWeight.array, skinWeight.stride ) );\n\n\t\t\tbuild.data = geometry;\n\t\t\tbuild.type = primitives[ 0 ].type;\n\t\t\tbuild.materialKeys = materialKeys;\n\n\t\t\treturn build;\n\n\t\t}\n\n\t\tfunction buildGeometryData( primitive, source, offset, array ) {\n\n\t\t\tvar indices = primitive.p;\n\t\t\tvar stride = primitive.stride;\n\t\t\tvar vcount = primitive.vcount;\n\n\t\t\tfunction pushVector( i ) {\n\n\t\t\t\tvar index = indices[ i + offset ] * sourceStride;\n\t\t\t\tvar length = index + sourceStride;\n\n\t\t\t\tfor ( ; index < length; index ++ ) {\n\n\t\t\t\t\tarray.push( sourceArray[ index ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar sourceArray = source.array;\n\t\t\tvar sourceStride = source.stride;\n\n\t\t\tif ( primitive.vcount !== undefined ) {\n\n\t\t\t\tvar index = 0;\n\n\t\t\t\tfor ( var i = 0, l = vcount.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar count = vcount[ i ];\n\n\t\t\t\t\tif ( count === 4 ) {\n\n\t\t\t\t\t\tvar a = index + stride * 0;\n\t\t\t\t\t\tvar b = index + stride * 1;\n\t\t\t\t\t\tvar c = index + stride * 2;\n\t\t\t\t\t\tvar d = index + stride * 3;\n\n\t\t\t\t\t\tpushVector( a ); pushVector( b ); pushVector( d );\n\t\t\t\t\t\tpushVector( b ); pushVector( c ); pushVector( d );\n\n\t\t\t\t\t} else if ( count === 3 ) {\n\n\t\t\t\t\t\tvar a = index + stride * 0;\n\t\t\t\t\t\tvar b = index + stride * 1;\n\t\t\t\t\t\tvar c = index + stride * 2;\n\n\t\t\t\t\t\tpushVector( a ); pushVector( b ); pushVector( c );\n\n\t\t\t\t\t} else if ( count > 4 ) {\n\n\t\t\t\t\t\tfor ( var k = 1, kl = ( count - 2 ); k <= kl; k ++ ) {\n\n\t\t\t\t\t\t\tvar a = index + stride * 0;\n\t\t\t\t\t\t\tvar b = index + stride * k;\n\t\t\t\t\t\t\tvar c = index + stride * ( k + 1 );\n\n\t\t\t\t\t\t\tpushVector( a ); pushVector( b ); pushVector( c );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tindex += stride * count;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tfor ( var i = 0, l = indices.length; i < l; i += stride ) {\n\n\t\t\t\t\tpushVector( i );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getGeometry( id ) {\n\n\t\t\treturn getBuild( library.geometries[ id ], buildGeometry );\n\n\t\t}\n\n\t\t// kinematics\n\n\t\tfunction parseKinematicsModel( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'name' ) || '',\n\t\t\t\tjoints: {},\n\t\t\t\tlinks: []\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'technique_common':\n\t\t\t\t\t\tparseKinematicsTechniqueCommon( child, data );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.kinematicsModels[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction buildKinematicsModel( data ) {\n\n\t\t\tif ( data.build !== undefined ) return data.build;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction getKinematicsModel( id ) {\n\n\t\t\treturn getBuild( library.kinematicsModels[ id ], buildKinematicsModel );\n\n\t\t}\n\n\t\tfunction parseKinematicsTechniqueCommon( xml, data ) {\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'joint':\n\t\t\t\t\t\tdata.joints[ child.getAttribute( 'sid' ) ] = parseKinematicsJoint( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'link':\n\t\t\t\t\t\tdata.links.push( parseKinematicsLink( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction parseKinematicsJoint( xml ) {\n\n\t\t\tvar data;\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'prismatic':\n\t\t\t\t\tcase 'revolute':\n\t\t\t\t\t\tdata = parseKinematicsJointParameter( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseKinematicsJointParameter( xml, data ) {\n\n\t\t\tvar data = {\n\t\t\t\tsid: xml.getAttribute( 'sid' ),\n\t\t\t\tname: xml.getAttribute( 'name' ) || '',\n\t\t\t\taxis: new THREE.Vector3(),\n\t\t\t\tlimits: {\n\t\t\t\t\tmin: 0,\n\t\t\t\t\tmax: 0\n\t\t\t\t},\n\t\t\t\ttype: xml.nodeName,\n\t\t\t\tstatic: false,\n\t\t\t\tzeroPosition: 0,\n\t\t\t\tmiddlePosition: 0\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'axis':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tdata.axis.fromArray( array );\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase 'limits':\n\t\t\t\t\t\tvar max = child.getElementsByTagName( 'max' )[ 0 ];\n\t\t\t\t\t\tvar min = child.getElementsByTagName( 'min' )[ 0 ];\n\n\t\t\t\t\t\tdata.limits.max = parseFloat( max.textContent );\n\t\t\t\t\t\tdata.limits.min = parseFloat( min.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// if min is equal to or greater than max, consider the joint static\n\n\t\t\tif ( data.limits.min >= data.limits.max ) {\n\n\t\t\t\tdata.static = true;\n\n\t\t\t}\n\n\t\t\t// calculate middle position\n\n\t\t\tdata.middlePosition = ( data.limits.min + data.limits.max ) / 2.0;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseKinematicsLink( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tsid: xml.getAttribute( 'sid' ),\n\t\t\t\tname: xml.getAttribute( 'name' ) || '',\n\t\t\t\tattachments: [],\n\t\t\t\ttransforms: []\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'attachment_full':\n\t\t\t\t\t\tdata.attachments.push( parseKinematicsAttachment( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'matrix':\n\t\t\t\t\tcase 'translate':\n\t\t\t\t\tcase 'rotate':\n\t\t\t\t\t\tdata.transforms.push( parseKinematicsTransform( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseKinematicsAttachment( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tjoint: xml.getAttribute( 'joint' ).split( '/' ).pop(),\n\t\t\t\ttransforms: [],\n\t\t\t\tlinks: []\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'link':\n\t\t\t\t\t\tdata.links.push( parseKinematicsLink( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'matrix':\n\t\t\t\t\tcase 'translate':\n\t\t\t\t\tcase 'rotate':\n\t\t\t\t\t\tdata.transforms.push( parseKinematicsTransform( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseKinematicsTransform( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\ttype: xml.nodeName\n\t\t\t};\n\n\t\t\tvar array = parseFloats( xml.textContent );\n\n\t\t\tswitch ( data.type ) {\n\n\t\t\t\tcase 'matrix':\n\t\t\t\t\tdata.obj = new THREE.Matrix4();\n\t\t\t\t\tdata.obj.fromArray( array ).transpose();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'translate':\n\t\t\t\t\tdata.obj = new THREE.Vector3();\n\t\t\t\t\tdata.obj.fromArray( array );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'rotate':\n\t\t\t\t\tdata.obj = new THREE.Vector3();\n\t\t\t\t\tdata.obj.fromArray( array );\n\t\t\t\t\tdata.angle = THREE.Math.degToRad( array[ 3 ] );\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\t// physics\n\n\t\tfunction parsePhysicsModel( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'name' ) || '',\n\t\t\t\trigidBodies: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'rigid_body':\n\t\t\t\t\t\tdata.rigidBodies[ child.getAttribute( 'name' ) ] = {};\n\t\t\t\t\t\tparsePhysicsRigidBody( child, data.rigidBodies[ child.getAttribute( 'name' ) ] );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.physicsModels[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction parsePhysicsRigidBody( xml, data ) {\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'technique_common':\n\t\t\t\t\t\tparsePhysicsTechniqueCommon( child, data );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction parsePhysicsTechniqueCommon( xml, data ) {\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'inertia':\n\t\t\t\t\t\tdata.inertia = parseFloats( child.textContent );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'mass':\n\t\t\t\t\t\tdata.mass = parseFloats( child.textContent )[0];\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// scene\n\n\t\tfunction parseKinematicsScene( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tbindJointAxis: []\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'bind_joint_axis':\n\t\t\t\t\t\tdata.bindJointAxis.push( parseKinematicsBindJointAxis( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlibrary.kinematicsScenes[ parseId( xml.getAttribute( 'url' ) ) ] = data;\n\n\t\t}\n\n\t\tfunction parseKinematicsBindJointAxis( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\ttarget: xml.getAttribute( 'target' ).split( '/' ).pop()\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'axis':\n\t\t\t\t\t\tvar param = child.getElementsByTagName( 'param' )[ 0 ];\n\t\t\t\t\t\tdata.axis = param.textContent;\n\t\t\t\t\t\tvar tmpJointIndex = data.axis.split( 'inst_' ).pop().split( 'axis' )[ 0 ];\n\t\t\t\t\t\tdata.jointIndex = tmpJointIndex.substr( 0, tmpJointIndex.length - 1 );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction buildKinematicsScene( data ) {\n\n\t\t\tif ( data.build !== undefined ) return data.build;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction getKinematicsScene( id ) {\n\n\t\t\treturn getBuild( library.kinematicsScenes[ id ], buildKinematicsScene );\n\n\t\t}\n\n\t\tfunction setupKinematics() {\n\n\t\t\tvar kinematicsModelId = Object.keys( library.kinematicsModels )[ 0 ];\n\t\t\tvar kinematicsSceneId = Object.keys( library.kinematicsScenes )[ 0 ];\n\t\t\tvar visualSceneId = Object.keys( library.visualScenes )[ 0 ];\n\n\t\t\tif ( kinematicsModelId === undefined || kinematicsSceneId === undefined ) return;\n\n\t\t\tvar kinematicsModel = getKinematicsModel( kinematicsModelId );\n\t\t\tvar kinematicsScene = getKinematicsScene( kinematicsSceneId );\n\t\t\tvar visualScene = getVisualScene( visualSceneId );\n\n\t\t\tvar bindJointAxis = kinematicsScene.bindJointAxis;\n\t\t\tvar jointMap = {};\n\n\t\t\tfor ( var i = 0, l = bindJointAxis.length; i < l; i ++ ) {\n\n\t\t\t\tvar axis = bindJointAxis[ i ];\n\n\t\t\t\t// the result of the following query is an element of type 'translate', 'rotate','scale' or 'matrix'\n\n\t\t\t\tvar targetElement = collada.querySelector( '[sid=\"' + axis.target + '\"]' );\n\n\t\t\t\tif ( targetElement ) {\n\n\t\t\t\t\t// get the parent of the transfrom element\n\n\t\t\t\t\tvar parentVisualElement = targetElement.parentElement;\n\n\t\t\t\t\t// connect the joint of the kinematics model with the element in the visual scene\n\n\t\t\t\t\tconnect( axis.jointIndex, parentVisualElement );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction connect( jointIndex, visualElement ) {\n\n\t\t\t\tvar visualElementName = visualElement.getAttribute( 'name' );\n\t\t\t\tvar joint = kinematicsModel.joints[ jointIndex ];\n\n\t\t\t\tvisualScene.traverse( function ( object ) {\n\n\t\t\t\t\tif ( object.name === visualElementName ) {\n\n\t\t\t\t\t\tjointMap[ jointIndex ] = {\n\t\t\t\t\t\t\tobject: object,\n\t\t\t\t\t\t\ttransforms: buildTransformList( visualElement ),\n\t\t\t\t\t\t\tjoint: joint,\n\t\t\t\t\t\t\tposition: joint.zeroPosition\n\t\t\t\t\t\t};\n\n\t\t\t\t\t}\n\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t\tvar m0 = new THREE.Matrix4();\n\n\t\t\tkinematics = {\n\n\t\t\t\tjoints: kinematicsModel && kinematicsModel.joints,\n\n\t\t\t\tgetJointValue: function ( jointIndex ) {\n\n\t\t\t\t\tvar jointData = jointMap[ jointIndex ];\n\n\t\t\t\t\tif ( jointData ) {\n\n\t\t\t\t\t\treturn jointData.position;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Joint ' + jointIndex + ' doesn\\'t exist.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetJointValue: function ( jointIndex, value ) {\n\n\t\t\t\t\tvar jointData = jointMap[ jointIndex ];\n\n\t\t\t\t\tif ( jointData ) {\n\n\t\t\t\t\t\tvar joint = jointData.joint;\n\n\t\t\t\t\t\tif ( value > joint.limits.max || value < joint.limits.min ) {\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Joint ' + jointIndex + ' value ' + value + ' outside of limits (min: ' + joint.limits.min + ', max: ' + joint.limits.max + ').' );\n\n\t\t\t\t\t\t} else if ( joint.static ) {\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Joint ' + jointIndex + ' is static.' );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar object = jointData.object;\n\t\t\t\t\t\t\tvar axis = joint.axis;\n\t\t\t\t\t\t\tvar transforms = jointData.transforms;\n\n\t\t\t\t\t\t\tmatrix.identity();\n\n\t\t\t\t\t\t\t// each update, we have to apply all transforms in the correct order\n\n\t\t\t\t\t\t\tfor ( var i = 0; i < transforms.length; i ++ ) {\n\n\t\t\t\t\t\t\t\tvar transform = transforms[ i ];\n\n\t\t\t\t\t\t\t\t// if there is a connection of the transform node with a joint, apply the joint value\n\n\t\t\t\t\t\t\t\tif ( transform.sid && transform.sid.indexOf( jointIndex ) !== - 1 ) {\n\n\t\t\t\t\t\t\t\t\tswitch ( joint.type ) {\n\n\t\t\t\t\t\t\t\t\t\tcase 'revolute':\n\t\t\t\t\t\t\t\t\t\t\tmatrix.multiply( m0.makeRotationAxis( axis, THREE.Math.degToRad( value ) ) );\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\t\tcase 'prismatic':\n\t\t\t\t\t\t\t\t\t\t\tmatrix.multiply( m0.makeTranslation( axis.x * value, axis.y * value, axis.z * value ) );\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Unknown joint type: ' + joint.type );\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tswitch ( transform.type ) {\n\n\t\t\t\t\t\t\t\t\t\tcase 'matrix':\n\t\t\t\t\t\t\t\t\t\t\tmatrix.multiply( transform.obj );\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\t\tcase 'translate':\n\t\t\t\t\t\t\t\t\t\t\tmatrix.multiply( m0.makeTranslation( transform.obj.x, transform.obj.y, transform.obj.z ) );\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\t\tcase 'scale':\n\t\t\t\t\t\t\t\t\t\t\tmatrix.scale( transform.obj );\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\t\tcase 'rotate':\n\t\t\t\t\t\t\t\t\t\t\tmatrix.multiply( m0.makeRotationAxis( transform.obj, transform.angle ) );\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tobject.matrix.copy( matrix );\n\t\t\t\t\t\t\tobject.matrix.decompose( object.position, object.quaternion, object.scale );\n\n\t\t\t\t\t\t\tjointMap[ jointIndex ].position = value;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.log( 'THREE.ColladaLoader: ' + jointIndex + ' does not exist.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\tfunction buildTransformList( node ) {\n\n\t\t\tvar transforms = [];\n\n\t\t\tvar xml = collada.querySelector( '[id=\"' + node.id + '\"]' );\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'matrix':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tvar matrix = new THREE.Matrix4().fromArray( array ).transpose();\n\t\t\t\t\t\ttransforms.push( {\n\t\t\t\t\t\t\tsid: child.getAttribute( 'sid' ),\n\t\t\t\t\t\t\ttype: child.nodeName,\n\t\t\t\t\t\t\tobj: matrix\n\t\t\t\t\t\t} );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'translate':\n\t\t\t\t\tcase 'scale':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tvar vector = new THREE.Vector3().fromArray( array );\n\t\t\t\t\t\ttransforms.push( {\n\t\t\t\t\t\t\tsid: child.getAttribute( 'sid' ),\n\t\t\t\t\t\t\ttype: child.nodeName,\n\t\t\t\t\t\t\tobj: vector\n\t\t\t\t\t\t} );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'rotate':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tvar vector = new THREE.Vector3().fromArray( array );\n\t\t\t\t\t\tvar angle = THREE.Math.degToRad( array[ 3 ] );\n\t\t\t\t\t\ttransforms.push( {\n\t\t\t\t\t\t\tsid: child.getAttribute( 'sid' ),\n\t\t\t\t\t\t\ttype: child.nodeName,\n\t\t\t\t\t\t\tobj: vector,\n\t\t\t\t\t\t\tangle: angle\n\t\t\t\t\t\t} );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn transforms;\n\n\t\t}\n\n\t\t// nodes\n\n\t\tfunction prepareNodes( xml ) {\n\n\t\t\tvar elements = xml.getElementsByTagName( 'node' );\n\n\t\t\t// ensure all node elements have id attributes\n\n\t\t\tfor ( var i = 0; i < elements.length; i ++ ) {\n\n\t\t\t\tvar element = elements[ i ];\n\n\t\t\t\tif ( element.hasAttribute( 'id' ) === false ) {\n\n\t\t\t\t\telement.setAttribute( 'id', generateId() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar matrix = new THREE.Matrix4();\n\t\tvar vector = new THREE.Vector3();\n\n\t\tfunction parseNode( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'name' ) || '',\n\t\t\t\ttype: xml.getAttribute( 'type' ),\n\t\t\t\tid: xml.getAttribute( 'id' ),\n\t\t\t\tsid: xml.getAttribute( 'sid' ),\n\t\t\t\tmatrix: new THREE.Matrix4(),\n\t\t\t\tnodes: [],\n\t\t\t\tinstanceCameras: [],\n\t\t\t\tinstanceControllers: [],\n\t\t\t\tinstanceLights: [],\n\t\t\t\tinstanceGeometries: [],\n\t\t\t\tinstanceNodes: [],\n\t\t\t\ttransforms: {}\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tif ( child.nodeType !== 1 ) continue;\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'node':\n\t\t\t\t\t\tdata.nodes.push( child.getAttribute( 'id' ) );\n\t\t\t\t\t\tparseNode( child );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'instance_camera':\n\t\t\t\t\t\tdata.instanceCameras.push( parseId( child.getAttribute( 'url' ) ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'instance_controller':\n\t\t\t\t\t\tdata.instanceControllers.push( parseNodeInstance( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'instance_light':\n\t\t\t\t\t\tdata.instanceLights.push( parseId( child.getAttribute( 'url' ) ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'instance_geometry':\n\t\t\t\t\t\tdata.instanceGeometries.push( parseNodeInstance( child ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'instance_node':\n\t\t\t\t\t\tdata.instanceNodes.push( parseId( child.getAttribute( 'url' ) ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'matrix':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tdata.matrix.multiply( matrix.fromArray( array ).transpose() );\n\t\t\t\t\t\tdata.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'translate':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tvector.fromArray( array );\n\t\t\t\t\t\tdata.matrix.multiply( matrix.makeTranslation( vector.x, vector.y, vector.z ) );\n\t\t\t\t\t\tdata.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'rotate':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tvar angle = THREE.Math.degToRad( array[ 3 ] );\n\t\t\t\t\t\tdata.matrix.multiply( matrix.makeRotationAxis( vector.fromArray( array ), angle ) );\n\t\t\t\t\t\tdata.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'scale':\n\t\t\t\t\t\tvar array = parseFloats( child.textContent );\n\t\t\t\t\t\tdata.matrix.scale( vector.fromArray( array ) );\n\t\t\t\t\t\tdata.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'extra':\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\tconsole.log( child );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( hasNode( data.id ) ) {\n\n\t\t\t\tconsole.warn( 'THREE.ColladaLoader: There is already a node with ID %s. Exclude current node from further processing.', data.id );\n\n\t\t\t} else {\n\n\t\t\t\tlibrary.nodes[ data.id ] = data;\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction parseNodeInstance( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tid: parseId( xml.getAttribute( 'url' ) ),\n\t\t\t\tmaterials: {},\n\t\t\t\tskeletons: []\n\t\t\t};\n\n\t\t\tfor ( var i = 0; i < xml.childNodes.length; i ++ ) {\n\n\t\t\t\tvar child = xml.childNodes[ i ];\n\n\t\t\t\tswitch ( child.nodeName ) {\n\n\t\t\t\t\tcase 'bind_material':\n\t\t\t\t\t\tvar instances = child.getElementsByTagName( 'instance_material' );\n\n\t\t\t\t\t\tfor ( var j = 0; j < instances.length; j ++ ) {\n\n\t\t\t\t\t\t\tvar instance = instances[ j ];\n\t\t\t\t\t\t\tvar symbol = instance.getAttribute( 'symbol' );\n\t\t\t\t\t\t\tvar target = instance.getAttribute( 'target' );\n\n\t\t\t\t\t\t\tdata.materials[ symbol ] = parseId( target );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'skeleton':\n\t\t\t\t\t\tdata.skeletons.push( parseId( child.textContent ) );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t\tfunction buildSkeleton( skeletons, joints ) {\n\n\t\t\tvar boneData = [];\n\t\t\tvar sortedBoneData = [];\n\n\t\t\tvar i, j, data;\n\n\t\t\t// a skeleton can have multiple root bones. collada expresses this\n\t\t\t// situtation with multiple \"skeleton\" tags per controller instance\n\n\t\t\tfor ( i = 0; i < skeletons.length; i ++ ) {\n\n\t\t\t\tvar skeleton = skeletons[ i ];\n\n\t\t\t\tvar root;\n\n\t\t\t\tif ( hasNode( skeleton ) ) {\n\n\t\t\t\t\troot = getNode( skeleton );\n\t\t\t\t\tbuildBoneHierarchy( root, joints, boneData );\n\n\t\t\t\t} else if ( hasVisualScene( skeleton ) ) {\n\n\t\t\t\t\t// handle case where the skeleton refers to the visual scene (#13335)\n\n\t\t\t\t\tvar visualScene = library.visualScenes[ skeleton ];\n\t\t\t\t\tvar children = visualScene.children;\n\n\t\t\t\t\tfor ( var j = 0; j < children.length; j ++ ) {\n\n\t\t\t\t\t\tvar child = children[ j ];\n\n\t\t\t\t\t\tif ( child.type === 'JOINT' ) {\n\n\t\t\t\t\t\t\tvar root = getNode( child.id );\n\t\t\t\t\t\t\tbuildBoneHierarchy( root, joints, boneData );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.error( 'THREE.ColladaLoader: Unable to find root bone of skeleton with ID:', skeleton );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// sort bone data (the order is defined in the corresponding controller)\n\n\t\t\tfor ( i = 0; i < joints.length; i ++ ) {\n\n\t\t\t\tfor ( j = 0; j < boneData.length; j ++ ) {\n\n\t\t\t\t\tdata = boneData[ j ];\n\n\t\t\t\t\tif ( data.bone.name === joints[ i ].name ) {\n\n\t\t\t\t\t\tsortedBoneData[ i ] = data;\n\t\t\t\t\t\tdata.processed = true;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// add unprocessed bone data at the end of the list\n\n\t\t\tfor ( i = 0; i < boneData.length; i ++ ) {\n\n\t\t\t\tdata = boneData[ i ];\n\n\t\t\t\tif ( data.processed === false ) {\n\n\t\t\t\t\tsortedBoneData.push( data );\n\t\t\t\t\tdata.processed = true;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// setup arrays for skeleton creation\n\n\t\t\tvar bones = [];\n\t\t\tvar boneInverses = [];\n\n\t\t\tfor ( i = 0; i < sortedBoneData.length; i ++ ) {\n\n\t\t\t\tdata = sortedBoneData[ i ];\n\n\t\t\t\tbones.push( data.bone );\n\t\t\t\tboneInverses.push( data.boneInverse );\n\n\t\t\t}\n\n\t\t\treturn new THREE.Skeleton( bones, boneInverses );\n\n\t\t}\n\n\t\tfunction buildBoneHierarchy( root, joints, boneData ) {\n\n\t\t\t// setup bone data from visual scene\n\n\t\t\troot.traverse( function ( object ) {\n\n\t\t\t\tif ( object.isBone === true ) {\n\n\t\t\t\t\tvar boneInverse;\n\n\t\t\t\t\t// retrieve the boneInverse from the controller data\n\n\t\t\t\t\tfor ( var i = 0; i < joints.length; i ++ ) {\n\n\t\t\t\t\t\tvar joint = joints[ i ];\n\n\t\t\t\t\t\tif ( joint.name === object.name ) {\n\n\t\t\t\t\t\t\tboneInverse = joint.boneInverse;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( boneInverse === undefined ) {\n\n\t\t\t\t\t\t// Unfortunately, there can be joints in the visual scene that are not part of the\n\t\t\t\t\t\t// corresponding controller. In this case, we have to create a dummy boneInverse matrix\n\t\t\t\t\t\t// for the respective bone. This bone won't affect any vertices, because there are no skin indices\n\t\t\t\t\t\t// and weights defined for it. But we still have to add the bone to the sorted bone list in order to\n\t\t\t\t\t\t// ensure a correct animation of the model.\n\n\t\t\t\t\t\tboneInverse = new THREE.Matrix4();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tboneData.push( { bone: object, boneInverse: boneInverse, processed: false } );\n\n\t\t\t\t}\n\n\t\t\t} );\n\n\t\t}\n\n\t\tfunction buildNode( data ) {\n\n\t\t\tvar objects = [];\n\n\t\t\tvar matrix = data.matrix;\n\t\t\tvar nodes = data.nodes;\n\t\t\tvar type = data.type;\n\t\t\tvar instanceCameras = data.instanceCameras;\n\t\t\tvar instanceControllers = data.instanceControllers;\n\t\t\tvar instanceLights = data.instanceLights;\n\t\t\tvar instanceGeometries = data.instanceGeometries;\n\t\t\tvar instanceNodes = data.instanceNodes;\n\n\t\t\t// nodes\n\n\t\t\tfor ( var i = 0, l = nodes.length; i < l; i ++ ) {\n\n\t\t\t\tobjects.push( getNode( nodes[ i ] ) );\n\n\t\t\t}\n\n\t\t\t// instance cameras\n\n\t\t\tfor ( var i = 0, l = instanceCameras.length; i < l; i ++ ) {\n\n\t\t\t\tvar instanceCamera = getCamera( instanceCameras[ i ] );\n\n\t\t\t\tif ( instanceCamera !== null ) {\n\n\t\t\t\t\tobjects.push( instanceCamera.clone() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// instance controllers\n\n\t\t\tfor ( var i = 0, l = instanceControllers.length; i < l; i ++ ) {\n\n\t\t\t\tvar instance = instanceControllers[ i ];\n\t\t\t\tvar controller = getController( instance.id );\n\t\t\t\tvar geometries = getGeometry( controller.id );\n\t\t\t\tvar newObjects = buildObjects( geometries, instance.materials );\n\n\t\t\t\tvar skeletons = instance.skeletons;\n\t\t\t\tvar joints = controller.skin.joints;\n\n\t\t\t\tvar skeleton = buildSkeleton( skeletons, joints );\n\n\t\t\t\tfor ( var j = 0, jl = newObjects.length; j < jl; j ++ ) {\n\n\t\t\t\t\tvar object = newObjects[ j ];\n\n\t\t\t\t\tif ( object.isSkinnedMesh ) {\n\n\t\t\t\t\t\tobject.bind( skeleton, controller.skin.bindMatrix );\n\t\t\t\t\t\tobject.normalizeSkinWeights();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tobjects.push( object );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// instance lights\n\n\t\t\tfor ( var i = 0, l = instanceLights.length; i < l; i ++ ) {\n\n\t\t\t\tvar instanceLight = getLight( instanceLights[ i ] );\n\n\t\t\t\tif ( instanceLight !== null ) {\n\n\t\t\t\t\tobjects.push( instanceLight.clone() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// instance geometries\n\n\t\t\tfor ( var i = 0, l = instanceGeometries.length; i < l; i ++ ) {\n\n\t\t\t\tvar instance = instanceGeometries[ i ];\n\n\t\t\t\t// a single geometry instance in collada can lead to multiple object3Ds.\n\t\t\t\t// this is the case when primitives are combined like triangles and lines\n\n\t\t\t\tvar geometries = getGeometry( instance.id );\n\t\t\t\tvar newObjects = buildObjects( geometries, instance.materials );\n\n\t\t\t\tfor ( var j = 0, jl = newObjects.length; j < jl; j ++ ) {\n\n\t\t\t\t\tobjects.push( newObjects[ j ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// instance nodes\n\n\t\t\tfor ( var i = 0, l = instanceNodes.length; i < l; i ++ ) {\n\n\t\t\t\tobjects.push( getNode( instanceNodes[ i ] ).clone() );\n\n\t\t\t}\n\n\t\t\tvar object;\n\n\t\t\tif ( nodes.length === 0 && objects.length === 1 ) {\n\n\t\t\t\tobject = objects[ 0 ];\n\n\t\t\t} else {\n\n\t\t\t\tobject = ( type === 'JOINT' ) ? new THREE.Bone() : new THREE.Group();\n\n\t\t\t\tfor ( var i = 0; i < objects.length; i ++ ) {\n\n\t\t\t\t\tobject.add( objects[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( object.name === '' ) {\n\n\t\t\t\tobject.name = ( type === 'JOINT' ) ? data.sid : data.name;\n\n\t\t\t}\n\n\t\t\tobject.matrix.copy( matrix );\n\t\t\tobject.matrix.decompose( object.position, object.quaternion, object.scale );\n\n\t\t\treturn object;\n\n\t\t}\n\n\t\tvar fallbackMaterial = new THREE.MeshBasicMaterial( { color: 0xff00ff } );\n\n\t\tfunction resolveMaterialBinding( keys, instanceMaterials ) {\n\n\t\t\tvar materials = [];\n\n\t\t\tfor ( var i = 0, l = keys.length; i < l; i ++ ) {\n\n\t\t\t\tvar id = instanceMaterials[ keys[ i ] ];\n\n\t\t\t\tif ( id === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.ColladaLoader: Material with key %s not found. Apply fallback material.', keys[ i ] );\n\t\t\t\t\tmaterials.push( fallbackMaterial );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tmaterials.push( getMaterial( id ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn materials;\n\n\t\t}\n\n\t\tfunction buildObjects( geometries, instanceMaterials ) {\n\n\t\t\tvar objects = [];\n\n\t\t\tfor ( var type in geometries ) {\n\n\t\t\t\tvar geometry = geometries[ type ];\n\n\t\t\t\tvar materials = resolveMaterialBinding( geometry.materialKeys, instanceMaterials );\n\n\t\t\t\t// handle case if no materials are defined\n\n\t\t\t\tif ( materials.length === 0 ) {\n\n\t\t\t\t\tif ( type === 'lines' || type === 'linestrips' ) {\n\n\t\t\t\t\t\tmaterials.push( new THREE.LineBasicMaterial() );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tmaterials.push( new THREE.MeshPhongMaterial() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// regard skinning\n\n\t\t\t\tvar skinning = ( geometry.data.attributes.skinIndex !== undefined );\n\n\t\t\t\tif ( skinning ) {\n\n\t\t\t\t\tfor ( var i = 0, l = materials.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tmaterials[ i ].skinning = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// choose between a single or multi materials (material array)\n\n\t\t\t\tvar material = ( materials.length === 1 ) ? materials[ 0 ] : materials;\n\n\t\t\t\t// now create a specific 3D object\n\n\t\t\t\tvar object;\n\n\t\t\t\tswitch ( type ) {\n\n\t\t\t\t\tcase 'lines':\n\t\t\t\t\t\tobject = new THREE.LineSegments( geometry.data, material );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'linestrips':\n\t\t\t\t\t\tobject = new THREE.Line( geometry.data, material );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'triangles':\n\t\t\t\t\tcase 'polylist':\n\t\t\t\t\t\tif ( skinning ) {\n\n\t\t\t\t\t\t\tobject = new THREE.SkinnedMesh( geometry.data, material );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tobject = new THREE.Mesh( geometry.data, material );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tobjects.push( object );\n\n\t\t\t}\n\n\t\t\treturn objects;\n\n\t\t}\n\n\t\tfunction hasNode( id ) {\n\n\t\t\treturn library.nodes[ id ] !== undefined;\n\n\t\t}\n\n\t\tfunction getNode( id ) {\n\n\t\t\treturn getBuild( library.nodes[ id ], buildNode );\n\n\t\t}\n\n\t\t// visual scenes\n\n\t\tfunction parseVisualScene( xml ) {\n\n\t\t\tvar data = {\n\t\t\t\tname: xml.getAttribute( 'name' ),\n\t\t\t\tchildren: []\n\t\t\t};\n\n\t\t\tprepareNodes( xml );\n\n\t\t\tvar elements = getElementsByTagName( xml, 'node' );\n\n\t\t\tfor ( var i = 0; i < elements.length; i ++ ) {\n\n\t\t\t\tdata.children.push( parseNode( elements[ i ] ) );\n\n\t\t\t}\n\n\t\t\tlibrary.visualScenes[ xml.getAttribute( 'id' ) ] = data;\n\n\t\t}\n\n\t\tfunction buildVisualScene( data ) {\n\n\t\t\tvar group = new THREE.Group();\n\t\t\tgroup.name = data.name;\n\n\t\t\tvar children = data.children;\n\n\t\t\tfor ( var i = 0; i < children.length; i ++ ) {\n\n\t\t\t\tvar child = children[ i ];\n\n\t\t\t\tgroup.add( getNode( child.id ) );\n\n\t\t\t}\n\n\t\t\treturn group;\n\n\t\t}\n\n\t\tfunction hasVisualScene( id ) {\n\n\t\t\treturn library.visualScenes[ id ] !== undefined;\n\n\t\t}\n\n\t\tfunction getVisualScene( id ) {\n\n\t\t\treturn getBuild( library.visualScenes[ id ], buildVisualScene );\n\n\t\t}\n\n\t\t// scenes\n\n\t\tfunction parseScene( xml ) {\n\n\t\t\tvar instance = getElementsByTagName( xml, 'instance_visual_scene' )[ 0 ];\n\t\t\treturn getVisualScene( parseId( instance.getAttribute( 'url' ) ) );\n\n\t\t}\n\n\t\tfunction setupAnimations() {\n\n\t\t\tvar clips = library.clips;\n\n\t\t\tif ( isEmpty( clips ) === true ) {\n\n\t\t\t\tif ( isEmpty( library.animations ) === false ) {\n\n\t\t\t\t\t// if there are animations but no clips, we create a default clip for playback\n\n\t\t\t\t\tvar tracks = [];\n\n\t\t\t\t\tfor ( var id in library.animations ) {\n\n\t\t\t\t\t\tvar animationTracks = getAnimation( id );\n\n\t\t\t\t\t\tfor ( var i = 0, l = animationTracks.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\ttracks.push( animationTracks[ i ] );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tanimations.push( new THREE.AnimationClip( 'default', - 1, tracks ) );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tfor ( var id in clips ) {\n\n\t\t\t\t\tanimations.push( getAnimationClip( id ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( text.length === 0 ) {\n\n\t\t\treturn { scene: new THREE.Scene() };\n\n\t\t}\n\n\t\tvar xml = new DOMParser().parseFromString( text, 'application/xml' );\n\n\t\tvar collada = getElementsByTagName( xml, 'COLLADA' )[ 0 ];\n\n\t\t// metadata\n\n\t\tvar version = collada.getAttribute( 'version' );\n\t\tconsole.log( 'THREE.ColladaLoader: File version', version );\n\n\t\tvar asset = parseAsset( getElementsByTagName( collada, 'asset' )[ 0 ] );\n\t\tvar textureLoader = new THREE.TextureLoader( this.manager );\n\t\ttextureLoader.setPath( path ).setCrossOrigin( this.crossOrigin );\n\n\t\tvar tgaLoader;\n\n\t\tif ( THREE.TGALoader ) {\n\n\t\t\ttgaLoader = new THREE.TGALoader( this.manager );\n\t\t\ttgaLoader.setPath( path );\n\n\t\t}\n\n\t\t//\n\n\t\tvar animations = [];\n\t\tvar kinematics = {};\n\t\tvar count = 0;\n\n\t\t//\n\n\t\tvar library = {\n\t\t\tanimations: {},\n\t\t\tclips: {},\n\t\t\tcontrollers: {},\n\t\t\timages: {},\n\t\t\teffects: {},\n\t\t\tmaterials: {},\n\t\t\tcameras: {},\n\t\t\tlights: {},\n\t\t\tgeometries: {},\n\t\t\tnodes: {},\n\t\t\tvisualScenes: {},\n\t\t\tkinematicsModels: {},\n\t\t\tphysicsModels: {},\n\t\t\tkinematicsScenes: {}\n\t\t};\n\n\t\tparseLibrary( collada, 'library_animations', 'animation', parseAnimation );\n\t\tparseLibrary( collada, 'library_animation_clips', 'animation_clip', parseAnimationClip );\n\t\tparseLibrary( collada, 'library_controllers', 'controller', parseController );\n\t\tparseLibrary( collada, 'library_images', 'image', parseImage );\n\t\tparseLibrary( collada, 'library_effects', 'effect', parseEffect );\n\t\tparseLibrary( collada, 'library_materials', 'material', parseMaterial );\n\t\tparseLibrary( collada, 'library_cameras', 'camera', parseCamera );\n\t\tparseLibrary( collada, 'library_lights', 'light', parseLight );\n\t\tparseLibrary( collada, 'library_geometries', 'geometry', parseGeometry );\n\t\tparseLibrary( collada, 'library_nodes', 'node', parseNode );\n\t\tparseLibrary( collada, 'library_visual_scenes', 'visual_scene', parseVisualScene );\n\t\tparseLibrary( collada, 'library_kinematics_models', 'kinematics_model', parseKinematicsModel );\n\t\tparseLibrary( collada, 'library_physics_models', 'physics_model', parsePhysicsModel );\n\t\tparseLibrary( collada, 'scene', 'instance_kinematics_scene', parseKinematicsScene );\n\n\t\tbuildLibrary( library.animations, buildAnimation );\n\t\tbuildLibrary( library.clips, buildAnimationClip );\n\t\tbuildLibrary( library.controllers, buildController );\n\t\tbuildLibrary( library.images, buildImage );\n\t\tbuildLibrary( library.effects, buildEffect );\n\t\tbuildLibrary( library.materials, buildMaterial );\n\t\tbuildLibrary( library.cameras, buildCamera );\n\t\tbuildLibrary( library.lights, buildLight );\n\t\tbuildLibrary( library.geometries, buildGeometry );\n\t\tbuildLibrary( library.visualScenes, buildVisualScene );\n\n\t\tsetupAnimations();\n\t\tsetupKinematics();\n\n\t\tvar scene = parseScene( getElementsByTagName( collada, 'scene' )[ 0 ] );\n\n\t\tif ( asset.upAxis === 'Z_UP' ) {\n\n\t\t\tscene.quaternion.setFromEuler( new THREE.Euler( - Math.PI / 2, 0, 0 ) );\n\n\t\t}\n\n\t\tscene.scale.multiplyScalar( asset.unit );\n\n\t\treturn {\n\t\t\tanimations: animations,\n\t\t\tkinematics: kinematics,\n\t\t\tlibrary: library,\n\t\t\tscene: scene\n\t\t};\n\n\t}\n\n};\n", "// Copyright 2016 The Draco Authors.\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n// http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n//\n'use strict';\n\n/**\n * @param {THREE.LoadingManager} manager\n */\nTHREE.DRACOLoader = function(manager) {\n this.timeLoaded = 0;\n this.manager = manager || THREE.DefaultLoadingManager;\n this.materials = null;\n this.verbosity = 0;\n this.attributeOptions = {};\n this.drawMode = THREE.TrianglesDrawMode;\n // Native Draco attribute type to Three.JS attribute type.\n this.nativeAttributeMap = {\n 'position' : 'POSITION',\n 'normal' : 'NORMAL',\n 'color' : 'COLOR',\n 'uv' : 'TEX_COORD'\n };\n};\n\nTHREE.DRACOLoader.prototype = {\n\n constructor: THREE.DRACOLoader,\n\n load: function(url, onLoad, onProgress, onError) {\n var scope = this;\n var loader = new THREE.FileLoader(scope.manager);\n loader.setPath(this.path);\n loader.setResponseType('arraybuffer');\n loader.load(url, function(blob) {\n scope.decodeDracoFile(blob, onLoad);\n }, onProgress, onError);\n },\n\n setPath: function(value) {\n this.path = value;\n return this;\n },\n\n setVerbosity: function(level) {\n this.verbosity = level;\n return this;\n },\n\n /**\n * Sets desired mode for generated geometry indices.\n * Can be either:\n * THREE.TrianglesDrawMode\n * THREE.TriangleStripDrawMode\n */\n setDrawMode: function(drawMode) {\n this.drawMode = drawMode;\n return this;\n },\n\n /**\n * Skips dequantization for a specific attribute.\n * |attributeName| is the THREE.js name of the given attribute type.\n * The only currently supported |attributeName| is 'position', more may be\n * added in future.\n */\n setSkipDequantization: function(attributeName, skip) {\n var skipDequantization = true;\n if (typeof skip !== 'undefined')\n skipDequantization = skip;\n this.getAttributeOptions(attributeName).skipDequantization =\n skipDequantization;\n return this;\n },\n\n /**\n * |attributeUniqueIdMap| specifies attribute unique id for an attribute in\n * the geometry to be decoded. The name of the attribute must be one of the\n * supported attribute type in Three.JS, including:\n * 'position',\n * 'color',\n * 'normal',\n * 'uv',\n * 'uv2',\n * 'skinIndex',\n * 'skinWeight'.\n * The format is:\n * attributeUniqueIdMap[attributeName] = attributeId\n */\n decodeDracoFile: function(rawBuffer, callback, attributeUniqueIdMap,\n attributeTypeMap) {\n var scope = this;\n THREE.DRACOLoader.getDecoderModule()\n .then( function ( module ) {\n scope.decodeDracoFileInternal( rawBuffer, module.decoder, callback,\n attributeUniqueIdMap || {}, attributeTypeMap || {});\n });\n },\n\n decodeDracoFileInternal: function(rawBuffer, dracoDecoder, callback,\n attributeUniqueIdMap, attributeTypeMap) {\n /*\n * Here is how to use Draco Javascript decoder and get the geometry.\n */\n var buffer = new dracoDecoder.DecoderBuffer();\n buffer.Init(new Int8Array(rawBuffer), rawBuffer.byteLength);\n var decoder = new dracoDecoder.Decoder();\n\n /*\n * Determine what type is this file: mesh or point cloud.\n */\n var geometryType = decoder.GetEncodedGeometryType(buffer);\n if (geometryType == dracoDecoder.TRIANGULAR_MESH) {\n if (this.verbosity > 0) {\n console.log('Loaded a mesh.');\n }\n } else if (geometryType == dracoDecoder.POINT_CLOUD) {\n if (this.verbosity > 0) {\n console.log('Loaded a point cloud.');\n }\n } else {\n var errorMsg = 'THREE.DRACOLoader: Unknown geometry type.'\n console.error(errorMsg);\n throw new Error(errorMsg);\n }\n callback(this.convertDracoGeometryTo3JS(dracoDecoder, decoder,\n geometryType, buffer, attributeUniqueIdMap, attributeTypeMap));\n },\n\n addAttributeToGeometry: function(dracoDecoder, decoder, dracoGeometry,\n attributeName, attributeType, attribute,\n geometry, geometryBuffer) {\n if (attribute.ptr === 0) {\n var errorMsg = 'THREE.DRACOLoader: No attribute ' + attributeName;\n console.error(errorMsg);\n throw new Error(errorMsg);\n }\n\n var numComponents = attribute.num_components();\n var numPoints = dracoGeometry.num_points();\n var numValues = numPoints * numComponents;\n var attributeData;\n var TypedBufferAttribute;\n\n switch ( attributeType ) {\n\n case Float32Array:\n attributeData = new dracoDecoder.DracoFloat32Array();\n decoder.GetAttributeFloatForAllPoints(\n dracoGeometry, attribute, attributeData);\n geometryBuffer[ attributeName ] = new Float32Array( numValues );\n TypedBufferAttribute = THREE.Float32BufferAttribute;\n break;\n\n case Int8Array:\n attributeData = new dracoDecoder.DracoInt8Array();\n decoder.GetAttributeInt8ForAllPoints(\n dracoGeometry, attribute, attributeData );\n geometryBuffer[ attributeName ] = new Int8Array( numValues );\n TypedBufferAttribute = THREE.Int8BufferAttribute;\n break;\n\n case Int16Array:\n attributeData = new dracoDecoder.DracoInt16Array();\n decoder.GetAttributeInt16ForAllPoints(\n dracoGeometry, attribute, attributeData);\n geometryBuffer[ attributeName ] = new Int16Array( numValues );\n TypedBufferAttribute = THREE.Int16BufferAttribute;\n break;\n\n case Int32Array:\n attributeData = new dracoDecoder.DracoInt32Array();\n decoder.GetAttributeInt32ForAllPoints(\n dracoGeometry, attribute, attributeData);\n geometryBuffer[ attributeName ] = new Int32Array( numValues );\n TypedBufferAttribute = THREE.Int32BufferAttribute;\n break;\n\n case Uint8Array:\n attributeData = new dracoDecoder.DracoUInt8Array();\n decoder.GetAttributeUInt8ForAllPoints(\n dracoGeometry, attribute, attributeData);\n geometryBuffer[ attributeName ] = new Uint8Array( numValues );\n TypedBufferAttribute = THREE.Uint8BufferAttribute;\n break;\n\n case Uint16Array:\n attributeData = new dracoDecoder.DracoUInt16Array();\n decoder.GetAttributeUInt16ForAllPoints(\n dracoGeometry, attribute, attributeData);\n geometryBuffer[ attributeName ] = new Uint16Array( numValues );\n TypedBufferAttribute = THREE.Uint16BufferAttribute;\n break;\n\n case Uint32Array:\n attributeData = new dracoDecoder.DracoUInt32Array();\n decoder.GetAttributeUInt32ForAllPoints(\n dracoGeometry, attribute, attributeData);\n geometryBuffer[ attributeName ] = new Uint32Array( numValues );\n TypedBufferAttribute = THREE.Uint32BufferAttribute;\n break;\n\n default:\n var errorMsg = 'THREE.DRACOLoader: Unexpected attribute type.';\n console.error( errorMsg );\n throw new Error( errorMsg );\n\n }\n\n // Copy data from decoder.\n for (var i = 0; i < numValues; i++) {\n geometryBuffer[attributeName][i] = attributeData.GetValue(i);\n }\n // Add attribute to THREEJS geometry for rendering.\n geometry.addAttribute(attributeName,\n new TypedBufferAttribute(geometryBuffer[attributeName],\n numComponents));\n dracoDecoder.destroy(attributeData);\n },\n\n convertDracoGeometryTo3JS: function(dracoDecoder, decoder, geometryType,\n buffer, attributeUniqueIdMap,\n attributeTypeMap) {\n if (this.getAttributeOptions('position').skipDequantization === true) {\n decoder.SkipAttributeTransform(dracoDecoder.POSITION);\n }\n var dracoGeometry;\n var decodingStatus;\n const start_time = performance.now();\n if (geometryType === dracoDecoder.TRIANGULAR_MESH) {\n dracoGeometry = new dracoDecoder.Mesh();\n decodingStatus = decoder.DecodeBufferToMesh(buffer, dracoGeometry);\n } else {\n dracoGeometry = new dracoDecoder.PointCloud();\n decodingStatus =\n decoder.DecodeBufferToPointCloud(buffer, dracoGeometry);\n }\n if (!decodingStatus.ok() || dracoGeometry.ptr == 0) {\n var errorMsg = 'THREE.DRACOLoader: Decoding failed: ';\n errorMsg += decodingStatus.error_msg();\n console.error(errorMsg);\n dracoDecoder.destroy(decoder);\n dracoDecoder.destroy(dracoGeometry);\n throw new Error(errorMsg);\n }\n\n var decode_end = performance.now();\n dracoDecoder.destroy(buffer);\n /*\n * Example on how to retrieve mesh and attributes.\n */\n var numFaces;\n if (geometryType == dracoDecoder.TRIANGULAR_MESH) {\n numFaces = dracoGeometry.num_faces();\n if (this.verbosity > 0) {\n console.log('Number of faces loaded: ' + numFaces.toString());\n }\n } else {\n numFaces = 0;\n }\n\n var numPoints = dracoGeometry.num_points();\n var numAttributes = dracoGeometry.num_attributes();\n if (this.verbosity > 0) {\n console.log('Number of points loaded: ' + numPoints.toString());\n console.log('Number of attributes loaded: ' +\n numAttributes.toString());\n }\n\n // Verify if there is position attribute.\n var posAttId = decoder.GetAttributeId(dracoGeometry,\n dracoDecoder.POSITION);\n if (posAttId == -1) {\n var errorMsg = 'THREE.DRACOLoader: No position attribute found.';\n console.error(errorMsg);\n dracoDecoder.destroy(decoder);\n dracoDecoder.destroy(dracoGeometry);\n throw new Error(errorMsg);\n }\n var posAttribute = decoder.GetAttribute(dracoGeometry, posAttId);\n\n // Structure for converting to THREEJS geometry later.\n var geometryBuffer = {};\n // Import data to Three JS geometry.\n var geometry = new THREE.BufferGeometry();\n\n // Add native Draco attribute type to geometry.\n for (var attributeName in this.nativeAttributeMap) {\n // The native attribute type is only used when no unique Id is\n // provided. For example, loading .drc files.\n if (attributeUniqueIdMap[attributeName] === undefined) {\n var attId = decoder.GetAttributeId(dracoGeometry,\n dracoDecoder[this.nativeAttributeMap[attributeName]]);\n if (attId !== -1) {\n if (this.verbosity > 0) {\n console.log('Loaded ' + attributeName + ' attribute.');\n }\n var attribute = decoder.GetAttribute(dracoGeometry, attId);\n this.addAttributeToGeometry(dracoDecoder, decoder, dracoGeometry,\n attributeName, Float32Array, attribute, geometry, geometryBuffer);\n }\n }\n }\n\n // Add attributes of user specified unique id. E.g. GLTF models.\n for (var attributeName in attributeUniqueIdMap) {\n var attributeType = attributeTypeMap[attributeName] || Float32Array;\n var attributeId = attributeUniqueIdMap[attributeName];\n var attribute = decoder.GetAttributeByUniqueId(dracoGeometry,\n attributeId);\n this.addAttributeToGeometry(dracoDecoder, decoder, dracoGeometry,\n attributeName, attributeType, attribute, geometry, geometryBuffer);\n }\n\n // For mesh, we need to generate the faces.\n if (geometryType == dracoDecoder.TRIANGULAR_MESH) {\n if (this.drawMode === THREE.TriangleStripDrawMode) {\n var stripsArray = new dracoDecoder.DracoInt32Array();\n var numStrips = decoder.GetTriangleStripsFromMesh(\n dracoGeometry, stripsArray);\n geometryBuffer.indices = new Uint32Array(stripsArray.size());\n for (var i = 0; i < stripsArray.size(); ++i) {\n geometryBuffer.indices[i] = stripsArray.GetValue(i);\n }\n dracoDecoder.destroy(stripsArray);\n } else {\n var numIndices = numFaces * 3;\n geometryBuffer.indices = new Uint32Array(numIndices);\n var ia = new dracoDecoder.DracoInt32Array();\n for (var i = 0; i < numFaces; ++i) {\n decoder.GetFaceFromMesh(dracoGeometry, i, ia);\n var index = i * 3;\n geometryBuffer.indices[index] = ia.GetValue(0);\n geometryBuffer.indices[index + 1] = ia.GetValue(1);\n geometryBuffer.indices[index + 2] = ia.GetValue(2);\n }\n dracoDecoder.destroy(ia);\n }\n }\n\n geometry.drawMode = this.drawMode;\n if (geometryType == dracoDecoder.TRIANGULAR_MESH) {\n geometry.setIndex(new(geometryBuffer.indices.length > 65535 ?\n THREE.Uint32BufferAttribute : THREE.Uint16BufferAttribute)\n (geometryBuffer.indices, 1));\n }\n var posTransform = new dracoDecoder.AttributeQuantizationTransform();\n if (posTransform.InitFromAttribute(posAttribute)) {\n // Quantized attribute. Store the quantization parameters into the\n // THREE.js attribute.\n geometry.attributes['position'].isQuantized = true;\n geometry.attributes['position'].maxRange = posTransform.range();\n geometry.attributes['position'].numQuantizationBits =\n posTransform.quantization_bits();\n geometry.attributes['position'].minValues = new Float32Array(3);\n for (var i = 0; i < 3; ++i) {\n geometry.attributes['position'].minValues[i] =\n posTransform.min_value(i);\n }\n }\n dracoDecoder.destroy(posTransform);\n dracoDecoder.destroy(decoder);\n dracoDecoder.destroy(dracoGeometry);\n\n this.decode_time = decode_end - start_time;\n this.import_time = performance.now() - decode_end;\n\n if (this.verbosity > 0) {\n console.log('Decode time: ' + this.decode_time);\n console.log('Import time: ' + this.import_time);\n }\n return geometry;\n },\n\n isVersionSupported: function(version, callback) {\n THREE.DRACOLoader.getDecoderModule()\n .then( function ( module ) {\n callback( module.decoder.isVersionSupported( version ) );\n });\n },\n\n getAttributeOptions: function(attributeName) {\n if (typeof this.attributeOptions[attributeName] === 'undefined')\n this.attributeOptions[attributeName] = {};\n return this.attributeOptions[attributeName];\n }\n};\n\nTHREE.DRACOLoader.decoderPath = './';\nTHREE.DRACOLoader.decoderConfig = {};\nTHREE.DRACOLoader.decoderModulePromise = null;\n\n/**\n * Sets the base path for decoder source files.\n * @param {string} path\n */\nTHREE.DRACOLoader.setDecoderPath = function ( path ) {\n THREE.DRACOLoader.decoderPath = path;\n};\n\n/**\n * Sets decoder configuration and releases singleton decoder module. Module\n * will be recreated with the next decoding call.\n * @param {Object} config\n */\nTHREE.DRACOLoader.setDecoderConfig = function ( config ) {\n var wasmBinary = THREE.DRACOLoader.decoderConfig.wasmBinary;\n THREE.DRACOLoader.decoderConfig = config || {};\n THREE.DRACOLoader.releaseDecoderModule();\n\n // Reuse WASM binary.\n if ( wasmBinary ) THREE.DRACOLoader.decoderConfig.wasmBinary = wasmBinary;\n};\n\n/**\n * Releases the singleton DracoDecoderModule instance. Module will be recreated\n * with the next decoding call.\n */\nTHREE.DRACOLoader.releaseDecoderModule = function () {\n THREE.DRACOLoader.decoderModulePromise = null;\n};\n\n/**\n * Gets WebAssembly or asm.js singleton instance of DracoDecoderModule\n * after testing for browser support. Returns Promise that resolves when\n * module is available.\n * @return {Promise<{decoder: DracoDecoderModule}>}\n */\nTHREE.DRACOLoader.getDecoderModule = function () {\n var scope = this;\n var path = THREE.DRACOLoader.decoderPath;\n var config = THREE.DRACOLoader.decoderConfig;\n var promise = THREE.DRACOLoader.decoderModulePromise;\n\n if ( promise ) return promise;\n\n // Load source files.\n if ( typeof DracoDecoderModule !== 'undefined' ) {\n // Loaded externally.\n promise = Promise.resolve();\n } else if ( typeof WebAssembly !== 'object' || config.type === 'js' ) {\n // Load with asm.js.\n promise = THREE.DRACOLoader._loadScript( path + 'draco_decoder.js' );\n } else {\n // Load with WebAssembly.\n config.wasmBinaryFile = path + 'draco_decoder.wasm';\n promise = THREE.DRACOLoader._loadScript( path + 'draco_wasm_wrapper.js' )\n .then( function () {\n return THREE.DRACOLoader._loadArrayBuffer( config.wasmBinaryFile );\n } )\n .then( function ( wasmBinary ) {\n config.wasmBinary = wasmBinary;\n } );\n }\n\n // Wait for source files, then create and return a decoder.\n promise = promise.then( function () {\n return new Promise( function ( resolve ) {\n config.onModuleLoaded = function ( decoder ) {\n scope.timeLoaded = performance.now();\n // Module is Promise-like. Wrap before resolving to avoid loop.\n resolve( { decoder: decoder } );\n };\n DracoDecoderModule( config );\n } );\n } );\n\n THREE.DRACOLoader.decoderModulePromise = promise;\n return promise;\n};\n\n/**\n * @param {string} src\n * @return {Promise}\n */\nTHREE.DRACOLoader._loadScript = function ( src ) {\n var prevScript = document.getElementById( 'decoder_script' );\n if ( prevScript !== null ) {\n prevScript.parentNode.removeChild( prevScript );\n }\n var head = document.getElementsByTagName( 'head' )[ 0 ];\n var script = document.createElement( 'script' );\n script.id = 'decoder_script';\n script.type = 'text/javascript';\n script.src = src;\n return new Promise( function ( resolve ) {\n script.onload = resolve;\n head.appendChild( script );\n });\n};\n\n/**\n * @param {string} src\n * @return {Promise}\n */\nTHREE.DRACOLoader._loadArrayBuffer = function ( src ) {\n var loader = new THREE.FileLoader();\n loader.setResponseType( 'arraybuffer' );\n return new Promise( function( resolve, reject ) {\n loader.load( src, resolve, undefined, reject );\n });\n};\n", "/**\n * @author Rich Tibbett / https://github.com/richtr\n * @author mrdoob / http://mrdoob.com/\n * @author Tony Parisi / http://www.tonyparisi.com/\n * @author Takahiro / https://github.com/takahirox\n * @author Don McCurdy / https://www.donmccurdy.com\n */\n\nTHREE.GLTFLoader = ( function () {\n\n\tfunction GLTFLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;\n\t\tthis.dracoLoader = null;\n\n\t}\n\n\tGLTFLoader.prototype = {\n\n\t\tconstructor: GLTFLoader,\n\n\t\tcrossOrigin: 'anonymous',\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar path = this.path !== undefined ? this.path : THREE.LoaderUtils.extractUrlBase( url );\n\n\t\t\tvar loader = new THREE.FileLoader( scope.manager );\n\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\n\t\t\tloader.load( url, function ( data ) {\n\n\t\t\t\ttry {\n\n\t\t\t\t\tscope.parse( data, path, onLoad, onError );\n\n\t\t\t\t} catch ( e ) {\n\n\t\t\t\t\tif ( onError !== undefined ) {\n\n\t\t\t\t\t\tonError( e );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tthrow e;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetDRACOLoader: function ( dracoLoader ) {\n\n\t\t\tthis.dracoLoader = dracoLoader;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tparse: function ( data, path, onLoad, onError ) {\n\n\t\t\tvar content;\n\t\t\tvar extensions = {};\n\n\t\t\tif ( typeof data === 'string' ) {\n\n\t\t\t\tcontent = data;\n\n\t\t\t} else {\n\n\t\t\t\tvar magic = THREE.LoaderUtils.decodeText( new Uint8Array( data, 0, 4 ) );\n\n\t\t\t\tif ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {\n\n\t\t\t\t\ttry {\n\n\t\t\t\t\t\textensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );\n\n\t\t\t\t\t} catch ( error ) {\n\n\t\t\t\t\t\tif ( onError ) onError( error );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tcontent = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcontent = THREE.LoaderUtils.decodeText( new Uint8Array( data ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar json = JSON.parse( content );\n\n\t\t\tif ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {\n\n\t\t\t\tif ( onError ) onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.' ) );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( json.extensionsUsed ) {\n\n\t\t\t\tfor ( var i = 0; i < json.extensionsUsed.length; ++ i ) {\n\n\t\t\t\t\tvar extensionName = json.extensionsUsed[ i ];\n\t\t\t\t\tvar extensionsRequired = json.extensionsRequired || [];\n\n\t\t\t\t\tswitch ( extensionName ) {\n\n\t\t\t\t\t\tcase EXTENSIONS.KHR_LIGHTS_PUNCTUAL:\n\t\t\t\t\t\t\textensions[ extensionName ] = new GLTFLightsExtension( json );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase EXTENSIONS.KHR_MATERIALS_UNLIT:\n\t\t\t\t\t\t\textensions[ extensionName ] = new GLTFMaterialsUnlitExtension( json );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:\n\t\t\t\t\t\t\textensions[ extensionName ] = new GLTFMaterialsPbrSpecularGlossinessExtension();\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:\n\t\t\t\t\t\t\textensions[ extensionName ] = new GLTFDracoMeshCompressionExtension( json, this.dracoLoader );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase EXTENSIONS.MSFT_TEXTURE_DDS:\n\t\t\t\t\t\t\textensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] = new GLTFTextureDDSExtension();\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tif ( extensionsRequired.indexOf( extensionName ) >= 0 ) {\n\n\t\t\t\t\t\t\t\tconsole.warn( 'THREE.GLTFLoader: Unknown extension \"' + extensionName + '\".' );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar parser = new GLTFParser( json, extensions, {\n\n\t\t\t\tpath: path || this.path || '',\n\t\t\t\tcrossOrigin: this.crossOrigin,\n\t\t\t\tmanager: this.manager\n\n\t\t\t} );\n\n\t\t\tparser.parse( function ( scene, scenes, cameras, animations, json ) {\n\n\t\t\t\tvar glTF = {\n\t\t\t\t\tscene: scene,\n\t\t\t\t\tscenes: scenes,\n\t\t\t\t\tcameras: cameras,\n\t\t\t\t\tanimations: animations,\n\t\t\t\t\tasset: json.asset,\n\t\t\t\t\tparser: parser,\n\t\t\t\t\tuserData: {}\n\t\t\t\t};\n\n\t\t\t\taddUnknownExtensionsToUserData( extensions, glTF, json );\n\n\t\t\t\tonLoad( glTF );\n\n\t\t\t}, onError );\n\n\t\t}\n\n\t};\n\n\t/* GLTFREGISTRY */\n\n\tfunction GLTFRegistry() {\n\n\t\tvar objects = {};\n\n\t\treturn\t{\n\n\t\t\tget: function ( key ) {\n\n\t\t\t\treturn objects[ key ];\n\n\t\t\t},\n\n\t\t\tadd: function ( key, object ) {\n\n\t\t\t\tobjects[ key ] = object;\n\n\t\t\t},\n\n\t\t\tremove: function ( key ) {\n\n\t\t\t\tdelete objects[ key ];\n\n\t\t\t},\n\n\t\t\tremoveAll: function () {\n\n\t\t\t\tobjects = {};\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/*********************************/\n\t/********** EXTENSIONS ***********/\n\t/*********************************/\n\n\tvar EXTENSIONS = {\n\t\tKHR_BINARY_GLTF: 'KHR_binary_glTF',\n\t\tKHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',\n\t\tKHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',\n\t\tKHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',\n\t\tKHR_MATERIALS_UNLIT: 'KHR_materials_unlit',\n\t\tMSFT_TEXTURE_DDS: 'MSFT_texture_dds'\n\t};\n\n\t/**\n\t * DDS Texture Extension\n\t *\n\t * Specification:\n\t * https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_texture_dds\n\t *\n\t */\n\tfunction GLTFTextureDDSExtension() {\n\n\t\tif ( ! THREE.DDSLoader ) {\n\n\t\t\tthrow new Error( 'THREE.GLTFLoader: Attempting to load .dds texture without importing THREE.DDSLoader' );\n\n\t\t}\n\n\t\tthis.name = EXTENSIONS.MSFT_TEXTURE_DDS;\n\t\tthis.ddsLoader = new THREE.DDSLoader();\n\n\t}\n\n\t/**\n\t * Lights Extension\n\t *\n\t * Specification: PENDING\n\t */\n\tfunction GLTFLightsExtension( json ) {\n\n\t\tthis.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;\n\n\t\tthis.lights = [];\n\n\t\tvar extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ] ) || {};\n\t\tvar lightDefs = extension.lights || [];\n\n\t\tfor ( var i = 0; i < lightDefs.length; i ++ ) {\n\n\t\t\tvar lightDef = lightDefs[ i ];\n\t\t\tvar lightNode;\n\n\t\t\tvar color = new THREE.Color( 0xffffff );\n\t\t\tif ( lightDef.color !== undefined ) color.fromArray( lightDef.color );\n\n\t\t\tvar range = lightDef.range !== undefined ? lightDef.range : 0;\n\n\t\t\tswitch ( lightDef.type ) {\n\n\t\t\t\tcase 'directional':\n\t\t\t\t\tlightNode = new THREE.DirectionalLight( color );\n\t\t\t\t\tlightNode.target.position.set( 0, 0, 1 );\n\t\t\t\t\tlightNode.add( lightNode.target );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'point':\n\t\t\t\t\tlightNode = new THREE.PointLight( color );\n\t\t\t\t\tlightNode.distance = range;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'spot':\n\t\t\t\t\tlightNode = new THREE.SpotLight( color );\n\t\t\t\t\tlightNode.distance = range;\n\t\t\t\t\t// Handle spotlight properties.\n\t\t\t\t\tlightDef.spot = lightDef.spot || {};\n\t\t\t\t\tlightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;\n\t\t\t\t\tlightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;\n\t\t\t\t\tlightNode.angle = lightDef.spot.outerConeAngle;\n\t\t\t\t\tlightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;\n\t\t\t\t\tlightNode.target.position.set( 0, 0, 1 );\n\t\t\t\t\tlightNode.add( lightNode.target );\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tthrow new Error( 'THREE.GLTFLoader: Unexpected light type, \"' + lightDef.type + '\".' );\n\n\t\t\t}\n\n\t\t\tlightNode.decay = 2;\n\n\t\t\tif ( lightDef.intensity !== undefined ) lightNode.intensity = lightDef.intensity;\n\n\t\t\tlightNode.name = lightDef.name || ( 'light_' + i );\n\n\t\t\tthis.lights.push( lightNode );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Unlit Materials Extension (pending)\n\t *\n\t * PR: https://github.com/KhronosGroup/glTF/pull/1163\n\t */\n\tfunction GLTFMaterialsUnlitExtension( json ) {\n\n\t\tthis.name = EXTENSIONS.KHR_MATERIALS_UNLIT;\n\n\t}\n\n\tGLTFMaterialsUnlitExtension.prototype.getMaterialType = function ( material ) {\n\n\t\treturn THREE.MeshBasicMaterial;\n\n\t};\n\n\tGLTFMaterialsUnlitExtension.prototype.extendParams = function ( materialParams, material, parser ) {\n\n\t\tvar pending = [];\n\n\t\tmaterialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );\n\t\tmaterialParams.opacity = 1.0;\n\n\t\tvar metallicRoughness = material.pbrMetallicRoughness;\n\n\t\tif ( metallicRoughness ) {\n\n\t\t\tif ( Array.isArray( metallicRoughness.baseColorFactor ) ) {\n\n\t\t\t\tvar array = metallicRoughness.baseColorFactor;\n\n\t\t\t\tmaterialParams.color.fromArray( array );\n\t\t\t\tmaterialParams.opacity = array[ 3 ];\n\n\t\t\t}\n\n\t\t\tif ( metallicRoughness.baseColorTexture !== undefined ) {\n\n\t\t\t\tpending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture.index ) );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Promise.all( pending );\n\n\t};\n\n\t/* BINARY EXTENSION */\n\n\tvar BINARY_EXTENSION_BUFFER_NAME = 'binary_glTF';\n\tvar BINARY_EXTENSION_HEADER_MAGIC = 'glTF';\n\tvar BINARY_EXTENSION_HEADER_LENGTH = 12;\n\tvar BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };\n\n\tfunction GLTFBinaryExtension( data ) {\n\n\t\tthis.name = EXTENSIONS.KHR_BINARY_GLTF;\n\t\tthis.content = null;\n\t\tthis.body = null;\n\n\t\tvar headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );\n\n\t\tthis.header = {\n\t\t\tmagic: THREE.LoaderUtils.decodeText( new Uint8Array( data.slice( 0, 4 ) ) ),\n\t\t\tversion: headerView.getUint32( 4, true ),\n\t\t\tlength: headerView.getUint32( 8, true )\n\t\t};\n\n\t\tif ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) {\n\n\t\t\tthrow new Error( 'THREE.GLTFLoader: Unsupported glTF-Binary header.' );\n\n\t\t} else if ( this.header.version < 2.0 ) {\n\n\t\t\tthrow new Error( 'THREE.GLTFLoader: Legacy binary file detected. Use LegacyGLTFLoader instead.' );\n\n\t\t}\n\n\t\tvar chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );\n\t\tvar chunkIndex = 0;\n\n\t\twhile ( chunkIndex < chunkView.byteLength ) {\n\n\t\t\tvar chunkLength = chunkView.getUint32( chunkIndex, true );\n\t\t\tchunkIndex += 4;\n\n\t\t\tvar chunkType = chunkView.getUint32( chunkIndex, true );\n\t\t\tchunkIndex += 4;\n\n\t\t\tif ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {\n\n\t\t\t\tvar contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );\n\t\t\t\tthis.content = THREE.LoaderUtils.decodeText( contentArray );\n\n\t\t\t} else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {\n\n\t\t\t\tvar byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;\n\t\t\t\tthis.body = data.slice( byteOffset, byteOffset + chunkLength );\n\n\t\t\t}\n\n\t\t\t// Clients must ignore chunks with unknown types.\n\n\t\t\tchunkIndex += chunkLength;\n\n\t\t}\n\n\t\tif ( this.content === null ) {\n\n\t\t\tthrow new Error( 'THREE.GLTFLoader: JSON content not found.' );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * DRACO Mesh Compression Extension\n\t *\n\t * Specification: https://github.com/KhronosGroup/glTF/pull/874\n\t */\n\tfunction GLTFDracoMeshCompressionExtension( json, dracoLoader ) {\n\n\t\tif ( ! dracoLoader ) {\n\n\t\t\tthrow new Error( 'THREE.GLTFLoader: No DRACOLoader instance provided.' );\n\n\t\t}\n\n\t\tthis.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;\n\t\tthis.json = json;\n\t\tthis.dracoLoader = dracoLoader;\n\n\t}\n\n\tGLTFDracoMeshCompressionExtension.prototype.decodePrimitive = function ( primitive, parser ) {\n\n\t\tvar json = this.json;\n\t\tvar dracoLoader = this.dracoLoader;\n\t\tvar bufferViewIndex = primitive.extensions[ this.name ].bufferView;\n\t\tvar gltfAttributeMap = primitive.extensions[ this.name ].attributes;\n\t\tvar threeAttributeMap = {};\n\t\tvar attributeNormalizedMap = {};\n\t\tvar attributeTypeMap = {};\n\n\t\tfor ( var attributeName in gltfAttributeMap ) {\n\n\t\t\tif ( ! ( attributeName in ATTRIBUTES ) ) continue;\n\n\t\t\tthreeAttributeMap[ ATTRIBUTES[ attributeName ] ] = gltfAttributeMap[ attributeName ];\n\n\t\t}\n\n\t\tfor ( attributeName in primitive.attributes ) {\n\n\t\t\tif ( ATTRIBUTES[ attributeName ] !== undefined && gltfAttributeMap[ attributeName ] !== undefined ) {\n\n\t\t\t\tvar accessorDef = json.accessors[ primitive.attributes[ attributeName ] ];\n\t\t\t\tvar componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];\n\n\t\t\t\tattributeTypeMap[ ATTRIBUTES[ attributeName ] ] = componentType;\n\t\t\t\tattributeNormalizedMap[ ATTRIBUTES[ attributeName ] ] = accessorDef.normalized === true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) {\n\n\t\t\treturn new Promise( function ( resolve ) {\n\n\t\t\t\tdracoLoader.decodeDracoFile( bufferView, function ( geometry ) {\n\n\t\t\t\t\tfor ( var attributeName in geometry.attributes ) {\n\n\t\t\t\t\t\tvar attribute = geometry.attributes[ attributeName ];\n\t\t\t\t\t\tvar normalized = attributeNormalizedMap[ attributeName ];\n\n\t\t\t\t\t\tif ( normalized !== undefined ) attribute.normalized = normalized;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tresolve( geometry );\n\n\t\t\t\t}, threeAttributeMap, attributeTypeMap );\n\n\t\t\t} );\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specular-Glossiness Extension\n\t *\n\t * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness\n\t */\n\tfunction GLTFMaterialsPbrSpecularGlossinessExtension() {\n\n\t\treturn {\n\n\t\t\tname: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,\n\n\t\t\tspecularGlossinessParams: [\n\t\t\t\t'color',\n\t\t\t\t'map',\n\t\t\t\t'lightMap',\n\t\t\t\t'lightMapIntensity',\n\t\t\t\t'aoMap',\n\t\t\t\t'aoMapIntensity',\n\t\t\t\t'emissive',\n\t\t\t\t'emissiveIntensity',\n\t\t\t\t'emissiveMap',\n\t\t\t\t'bumpMap',\n\t\t\t\t'bumpScale',\n\t\t\t\t'normalMap',\n\t\t\t\t'displacementMap',\n\t\t\t\t'displacementScale',\n\t\t\t\t'displacementBias',\n\t\t\t\t'specularMap',\n\t\t\t\t'specular',\n\t\t\t\t'glossinessMap',\n\t\t\t\t'glossiness',\n\t\t\t\t'alphaMap',\n\t\t\t\t'envMap',\n\t\t\t\t'envMapIntensity',\n\t\t\t\t'refractionRatio',\n\t\t\t],\n\n\t\t\tgetMaterialType: function () {\n\n\t\t\t\treturn THREE.ShaderMaterial;\n\n\t\t\t},\n\n\t\t\textendParams: function ( params, material, parser ) {\n\n\t\t\t\tvar pbrSpecularGlossiness = material.extensions[ this.name ];\n\n\t\t\t\tvar shader = THREE.ShaderLib[ 'standard' ];\n\n\t\t\t\tvar uniforms = THREE.UniformsUtils.clone( shader.uniforms );\n\n\t\t\t\tvar specularMapParsFragmentChunk = [\n\t\t\t\t\t'#ifdef USE_SPECULARMAP',\n\t\t\t\t\t'\tuniform sampler2D specularMap;',\n\t\t\t\t\t'#endif'\n\t\t\t\t].join( '\\n' );\n\n\t\t\t\tvar glossinessMapParsFragmentChunk = [\n\t\t\t\t\t'#ifdef USE_GLOSSINESSMAP',\n\t\t\t\t\t'\tuniform sampler2D glossinessMap;',\n\t\t\t\t\t'#endif'\n\t\t\t\t].join( '\\n' );\n\n\t\t\t\tvar specularMapFragmentChunk = [\n\t\t\t\t\t'vec3 specularFactor = specular;',\n\t\t\t\t\t'#ifdef USE_SPECULARMAP',\n\t\t\t\t\t'\tvec4 texelSpecular = texture2D( specularMap, vUv );',\n\t\t\t\t\t'\ttexelSpecular = sRGBToLinear( texelSpecular );',\n\t\t\t\t\t'\t// reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture',\n\t\t\t\t\t'\tspecularFactor *= texelSpecular.rgb;',\n\t\t\t\t\t'#endif'\n\t\t\t\t].join( '\\n' );\n\n\t\t\t\tvar glossinessMapFragmentChunk = [\n\t\t\t\t\t'float glossinessFactor = glossiness;',\n\t\t\t\t\t'#ifdef USE_GLOSSINESSMAP',\n\t\t\t\t\t'\tvec4 texelGlossiness = texture2D( glossinessMap, vUv );',\n\t\t\t\t\t'\t// reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture',\n\t\t\t\t\t'\tglossinessFactor *= texelGlossiness.a;',\n\t\t\t\t\t'#endif'\n\t\t\t\t].join( '\\n' );\n\n\t\t\t\tvar lightPhysicalFragmentChunk = [\n\t\t\t\t\t'PhysicalMaterial material;',\n\t\t\t\t\t'material.diffuseColor = diffuseColor.rgb;',\n\t\t\t\t\t'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );',\n\t\t\t\t\t'material.specularColor = specularFactor.rgb;',\n\t\t\t\t].join( '\\n' );\n\n\t\t\t\tvar fragmentShader = shader.fragmentShader\n\t\t\t\t\t.replace( 'uniform float roughness;', 'uniform vec3 specular;' )\n\t\t\t\t\t.replace( 'uniform float metalness;', 'uniform float glossiness;' )\n\t\t\t\t\t.replace( '#include ', specularMapParsFragmentChunk )\n\t\t\t\t\t.replace( '#include ', glossinessMapParsFragmentChunk )\n\t\t\t\t\t.replace( '#include ', specularMapFragmentChunk )\n\t\t\t\t\t.replace( '#include ', glossinessMapFragmentChunk )\n\t\t\t\t\t.replace( '#include ', lightPhysicalFragmentChunk );\n\n\t\t\t\tdelete uniforms.roughness;\n\t\t\t\tdelete uniforms.metalness;\n\t\t\t\tdelete uniforms.roughnessMap;\n\t\t\t\tdelete uniforms.metalnessMap;\n\n\t\t\t\tuniforms.specular = { value: new THREE.Color().setHex( 0x111111 ) };\n\t\t\t\tuniforms.glossiness = { value: 0.5 };\n\t\t\t\tuniforms.specularMap = { value: null };\n\t\t\t\tuniforms.glossinessMap = { value: null };\n\n\t\t\t\tparams.vertexShader = shader.vertexShader;\n\t\t\t\tparams.fragmentShader = fragmentShader;\n\t\t\t\tparams.uniforms = uniforms;\n\t\t\t\tparams.defines = { 'STANDARD': '' };\n\n\t\t\t\tparams.color = new THREE.Color( 1.0, 1.0, 1.0 );\n\t\t\t\tparams.opacity = 1.0;\n\n\t\t\t\tvar pending = [];\n\n\t\t\t\tif ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {\n\n\t\t\t\t\tvar array = pbrSpecularGlossiness.diffuseFactor;\n\n\t\t\t\t\tparams.color.fromArray( array );\n\t\t\t\t\tparams.opacity = array[ 3 ];\n\n\t\t\t\t}\n\n\t\t\t\tif ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {\n\n\t\t\t\t\tpending.push( parser.assignTexture( params, 'map', pbrSpecularGlossiness.diffuseTexture.index ) );\n\n\t\t\t\t}\n\n\t\t\t\tparams.emissive = new THREE.Color( 0.0, 0.0, 0.0 );\n\t\t\t\tparams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;\n\t\t\t\tparams.specular = new THREE.Color( 1.0, 1.0, 1.0 );\n\n\t\t\t\tif ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {\n\n\t\t\t\t\tparams.specular.fromArray( pbrSpecularGlossiness.specularFactor );\n\n\t\t\t\t}\n\n\t\t\t\tif ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {\n\n\t\t\t\t\tvar specGlossIndex = pbrSpecularGlossiness.specularGlossinessTexture.index;\n\t\t\t\t\tpending.push( parser.assignTexture( params, 'glossinessMap', specGlossIndex ) );\n\t\t\t\t\tpending.push( parser.assignTexture( params, 'specularMap', specGlossIndex ) );\n\n\t\t\t\t}\n\n\t\t\t\treturn Promise.all( pending );\n\n\t\t\t},\n\n\t\t\tcreateMaterial: function ( params ) {\n\n\t\t\t\t// setup material properties based on MeshStandardMaterial for Specular-Glossiness\n\n\t\t\t\tvar material = new THREE.ShaderMaterial( {\n\t\t\t\t\tdefines: params.defines,\n\t\t\t\t\tvertexShader: params.vertexShader,\n\t\t\t\t\tfragmentShader: params.fragmentShader,\n\t\t\t\t\tuniforms: params.uniforms,\n\t\t\t\t\tfog: true,\n\t\t\t\t\tlights: true,\n\t\t\t\t\topacity: params.opacity,\n\t\t\t\t\ttransparent: params.transparent\n\t\t\t\t} );\n\n\t\t\t\tmaterial.isGLTFSpecularGlossinessMaterial = true;\n\n\t\t\t\tmaterial.color = params.color;\n\n\t\t\t\tmaterial.map = params.map === undefined ? null : params.map;\n\n\t\t\t\tmaterial.lightMap = null;\n\t\t\t\tmaterial.lightMapIntensity = 1.0;\n\n\t\t\t\tmaterial.aoMap = params.aoMap === undefined ? null : params.aoMap;\n\t\t\t\tmaterial.aoMapIntensity = 1.0;\n\n\t\t\t\tmaterial.emissive = params.emissive;\n\t\t\t\tmaterial.emissiveIntensity = 1.0;\n\t\t\t\tmaterial.emissiveMap = params.emissiveMap === undefined ? null : params.emissiveMap;\n\n\t\t\t\tmaterial.bumpMap = params.bumpMap === undefined ? null : params.bumpMap;\n\t\t\t\tmaterial.bumpScale = 1;\n\n\t\t\t\tmaterial.normalMap = params.normalMap === undefined ? null : params.normalMap;\n\t\t\t\tif ( params.normalScale ) material.normalScale = params.normalScale;\n\n\t\t\t\tmaterial.displacementMap = null;\n\t\t\t\tmaterial.displacementScale = 1;\n\t\t\t\tmaterial.displacementBias = 0;\n\n\t\t\t\tmaterial.specularMap = params.specularMap === undefined ? null : params.specularMap;\n\t\t\t\tmaterial.specular = params.specular;\n\n\t\t\t\tmaterial.glossinessMap = params.glossinessMap === undefined ? null : params.glossinessMap;\n\t\t\t\tmaterial.glossiness = params.glossiness;\n\n\t\t\t\tmaterial.alphaMap = null;\n\n\t\t\t\tmaterial.envMap = params.envMap === undefined ? null : params.envMap;\n\t\t\t\tmaterial.envMapIntensity = 1.0;\n\n\t\t\t\tmaterial.refractionRatio = 0.98;\n\n\t\t\t\tmaterial.extensions.derivatives = true;\n\n\t\t\t\treturn material;\n\n\t\t\t},\n\n\t\t\t/**\n\t\t\t * Clones a GLTFSpecularGlossinessMaterial instance. The ShaderMaterial.copy() method can\n\t\t\t * copy only properties it knows about or inherits, and misses many properties that would\n\t\t\t * normally be defined by MeshStandardMaterial.\n\t\t\t *\n\t\t\t * This method allows GLTFSpecularGlossinessMaterials to be cloned in the process of\n\t\t\t * loading a glTF model, but cloning later (e.g. by the user) would require these changes\n\t\t\t * AND also updating `.onBeforeRender` on the parent mesh.\n\t\t\t *\n\t\t\t * @param {THREE.ShaderMaterial} source\n\t\t\t * @return {THREE.ShaderMaterial}\n\t\t\t */\n\t\t\tcloneMaterial: function ( source ) {\n\n\t\t\t\tvar target = source.clone();\n\n\t\t\t\ttarget.isGLTFSpecularGlossinessMaterial = true;\n\n\t\t\t\tvar params = this.specularGlossinessParams;\n\n\t\t\t\tfor ( var i = 0, il = params.length; i < il; i ++ ) {\n\n\t\t\t\t\ttarget[ params[ i ] ] = source[ params[ i ] ];\n\n\t\t\t\t}\n\n\t\t\t\treturn target;\n\n\t\t\t},\n\n\t\t\t// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.\n\t\t\trefreshUniforms: function ( renderer, scene, camera, geometry, material, group ) {\n\n\t\t\t\tif ( material.isGLTFSpecularGlossinessMaterial !== true ) {\n\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tvar uniforms = material.uniforms;\n\t\t\t\tvar defines = material.defines;\n\n\t\t\t\tuniforms.opacity.value = material.opacity;\n\n\t\t\t\tuniforms.diffuse.value.copy( material.color );\n\t\t\t\tuniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );\n\n\t\t\t\tuniforms.map.value = material.map;\n\t\t\t\tuniforms.specularMap.value = material.specularMap;\n\t\t\t\tuniforms.alphaMap.value = material.alphaMap;\n\n\t\t\t\tuniforms.lightMap.value = material.lightMap;\n\t\t\t\tuniforms.lightMapIntensity.value = material.lightMapIntensity;\n\n\t\t\t\tuniforms.aoMap.value = material.aoMap;\n\t\t\t\tuniforms.aoMapIntensity.value = material.aoMapIntensity;\n\n\t\t\t\t// uv repeat and offset setting priorities\n\t\t\t\t// 1. color map\n\t\t\t\t// 2. specular map\n\t\t\t\t// 3. normal map\n\t\t\t\t// 4. bump map\n\t\t\t\t// 5. alpha map\n\t\t\t\t// 6. emissive map\n\n\t\t\t\tvar uvScaleMap;\n\n\t\t\t\tif ( material.map ) {\n\n\t\t\t\t\tuvScaleMap = material.map;\n\n\t\t\t\t} else if ( material.specularMap ) {\n\n\t\t\t\t\tuvScaleMap = material.specularMap;\n\n\t\t\t\t} else if ( material.displacementMap ) {\n\n\t\t\t\t\tuvScaleMap = material.displacementMap;\n\n\t\t\t\t} else if ( material.normalMap ) {\n\n\t\t\t\t\tuvScaleMap = material.normalMap;\n\n\t\t\t\t} else if ( material.bumpMap ) {\n\n\t\t\t\t\tuvScaleMap = material.bumpMap;\n\n\t\t\t\t} else if ( material.glossinessMap ) {\n\n\t\t\t\t\tuvScaleMap = material.glossinessMap;\n\n\t\t\t\t} else if ( material.alphaMap ) {\n\n\t\t\t\t\tuvScaleMap = material.alphaMap;\n\n\t\t\t\t} else if ( material.emissiveMap ) {\n\n\t\t\t\t\tuvScaleMap = material.emissiveMap;\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvScaleMap !== undefined ) {\n\n\t\t\t\t\t// backwards compatibility\n\t\t\t\t\tif ( uvScaleMap.isWebGLRenderTarget ) {\n\n\t\t\t\t\t\tuvScaleMap = uvScaleMap.texture;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( uvScaleMap.matrixAutoUpdate === true ) {\n\n\t\t\t\t\t\tuvScaleMap.updateMatrix();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tuniforms.uvTransform.value.copy( uvScaleMap.matrix );\n\n\t\t\t\t}\n\n\t\t\t\tuniforms.envMap.value = material.envMap;\n\t\t\t\tuniforms.envMapIntensity.value = material.envMapIntensity;\n\t\t\t\tuniforms.flipEnvMap.value = ( material.envMap && material.envMap.isCubeTexture ) ? - 1 : 1;\n\n\t\t\t\tuniforms.refractionRatio.value = material.refractionRatio;\n\n\t\t\t\tuniforms.specular.value.copy( material.specular );\n\t\t\t\tuniforms.glossiness.value = material.glossiness;\n\n\t\t\t\tuniforms.glossinessMap.value = material.glossinessMap;\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t\tif ( uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined ) {\n\n\t\t\t\t\tdefines.USE_GLOSSINESSMAP = '';\n\t\t\t\t\t// set USE_ROUGHNESSMAP to enable vUv\n\t\t\t\t\tdefines.USE_ROUGHNESSMAP = '';\n\n\t\t\t\t}\n\n\t\t\t\tif ( uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined ) {\n\n\t\t\t\t\tdelete defines.USE_GLOSSINESSMAP;\n\t\t\t\t\tdelete defines.USE_ROUGHNESSMAP;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/*********************************/\n\t/********** INTERPOLATION ********/\n\t/*********************************/\n\n\t// Spline Interpolation\n\t// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation\n\tfunction GLTFCubicSplineInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tTHREE.Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tGLTFCubicSplineInterpolant.prototype = Object.create( THREE.Interpolant.prototype );\n\tGLTFCubicSplineInterpolant.prototype.constructor = GLTFCubicSplineInterpolant;\n\n\tGLTFCubicSplineInterpolant.prototype.interpolate_ = function ( i1, t0, t, t1 ) {\n\n\t\tvar result = this.resultBuffer;\n\t\tvar values = this.sampleValues;\n\t\tvar stride = this.valueSize;\n\n\t\tvar stride2 = stride * 2;\n\t\tvar stride3 = stride * 3;\n\n\t\tvar td = t1 - t0;\n\n\t\tvar p = ( t - t0 ) / td;\n\t\tvar pp = p * p;\n\t\tvar ppp = pp * p;\n\n\t\tvar offset1 = i1 * stride3;\n\t\tvar offset0 = offset1 - stride3;\n\n\t\tvar s0 = 2 * ppp - 3 * pp + 1;\n\t\tvar s1 = ppp - 2 * pp + p;\n\t\tvar s2 = - 2 * ppp + 3 * pp;\n\t\tvar s3 = ppp - pp;\n\n\t\t// Layout of keyframe output values for CUBICSPLINE animations:\n\t\t// [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]\n\t\tfor ( var i = 0; i !== stride; i ++ ) {\n\n\t\t\tvar p0 = values[ offset0 + i + stride ]; // splineVertex_k\n\t\t\tvar m0 = values[ offset0 + i + stride2 ] * td; // outTangent_k * (t_k+1 - t_k)\n\t\t\tvar p1 = values[ offset1 + i + stride ]; // splineVertex_k+1\n\t\t\tvar m1 = values[ offset1 + i ] * td; // inTangent_k+1 * (t_k+1 - t_k)\n\n\t\t\tresult[ i ] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;\n\n\t\t}\n\n\t\treturn result;\n\n\t};\n\n\t/*********************************/\n\t/********** INTERNALS ************/\n\t/*********************************/\n\n\t/* CONSTANTS */\n\n\tvar WEBGL_CONSTANTS = {\n\t\tFLOAT: 5126,\n\t\t//FLOAT_MAT2: 35674,\n\t\tFLOAT_MAT3: 35675,\n\t\tFLOAT_MAT4: 35676,\n\t\tFLOAT_VEC2: 35664,\n\t\tFLOAT_VEC3: 35665,\n\t\tFLOAT_VEC4: 35666,\n\t\tLINEAR: 9729,\n\t\tREPEAT: 10497,\n\t\tSAMPLER_2D: 35678,\n\t\tPOINTS: 0,\n\t\tLINES: 1,\n\t\tLINE_LOOP: 2,\n\t\tLINE_STRIP: 3,\n\t\tTRIANGLES: 4,\n\t\tTRIANGLE_STRIP: 5,\n\t\tTRIANGLE_FAN: 6,\n\t\tUNSIGNED_BYTE: 5121,\n\t\tUNSIGNED_SHORT: 5123\n\t};\n\n\tvar WEBGL_TYPE = {\n\t\t5126: Number,\n\t\t//35674: THREE.Matrix2,\n\t\t35675: THREE.Matrix3,\n\t\t35676: THREE.Matrix4,\n\t\t35664: THREE.Vector2,\n\t\t35665: THREE.Vector3,\n\t\t35666: THREE.Vector4,\n\t\t35678: THREE.Texture\n\t};\n\n\tvar WEBGL_COMPONENT_TYPES = {\n\t\t5120: Int8Array,\n\t\t5121: Uint8Array,\n\t\t5122: Int16Array,\n\t\t5123: Uint16Array,\n\t\t5125: Uint32Array,\n\t\t5126: Float32Array\n\t};\n\n\tvar WEBGL_FILTERS = {\n\t\t9728: THREE.NearestFilter,\n\t\t9729: THREE.LinearFilter,\n\t\t9984: THREE.NearestMipMapNearestFilter,\n\t\t9985: THREE.LinearMipMapNearestFilter,\n\t\t9986: THREE.NearestMipMapLinearFilter,\n\t\t9987: THREE.LinearMipMapLinearFilter\n\t};\n\n\tvar WEBGL_WRAPPINGS = {\n\t\t33071: THREE.ClampToEdgeWrapping,\n\t\t33648: THREE.MirroredRepeatWrapping,\n\t\t10497: THREE.RepeatWrapping\n\t};\n\n\tvar WEBGL_SIDES = {\n\t\t1028: THREE.BackSide, // Culling front\n\t\t1029: THREE.FrontSide // Culling back\n\t\t//1032: THREE.NoSide // Culling front and back, what to do?\n\t};\n\n\tvar WEBGL_DEPTH_FUNCS = {\n\t\t512: THREE.NeverDepth,\n\t\t513: THREE.LessDepth,\n\t\t514: THREE.EqualDepth,\n\t\t515: THREE.LessEqualDepth,\n\t\t516: THREE.GreaterEqualDepth,\n\t\t517: THREE.NotEqualDepth,\n\t\t518: THREE.GreaterEqualDepth,\n\t\t519: THREE.AlwaysDepth\n\t};\n\n\tvar WEBGL_BLEND_EQUATIONS = {\n\t\t32774: THREE.AddEquation,\n\t\t32778: THREE.SubtractEquation,\n\t\t32779: THREE.ReverseSubtractEquation\n\t};\n\n\tvar WEBGL_BLEND_FUNCS = {\n\t\t0: THREE.ZeroFactor,\n\t\t1: THREE.OneFactor,\n\t\t768: THREE.SrcColorFactor,\n\t\t769: THREE.OneMinusSrcColorFactor,\n\t\t770: THREE.SrcAlphaFactor,\n\t\t771: THREE.OneMinusSrcAlphaFactor,\n\t\t772: THREE.DstAlphaFactor,\n\t\t773: THREE.OneMinusDstAlphaFactor,\n\t\t774: THREE.DstColorFactor,\n\t\t775: THREE.OneMinusDstColorFactor,\n\t\t776: THREE.SrcAlphaSaturateFactor\n\t\t// The followings are not supported by Three.js yet\n\t\t//32769: CONSTANT_COLOR,\n\t\t//32770: ONE_MINUS_CONSTANT_COLOR,\n\t\t//32771: CONSTANT_ALPHA,\n\t\t//32772: ONE_MINUS_CONSTANT_COLOR\n\t};\n\n\tvar WEBGL_TYPE_SIZES = {\n\t\t'SCALAR': 1,\n\t\t'VEC2': 2,\n\t\t'VEC3': 3,\n\t\t'VEC4': 4,\n\t\t'MAT2': 4,\n\t\t'MAT3': 9,\n\t\t'MAT4': 16\n\t};\n\n\tvar ATTRIBUTES = {\n\t\tPOSITION: 'position',\n\t\tNORMAL: 'normal',\n\t\tTEXCOORD_0: 'uv',\n\t\tTEXCOORD0: 'uv', // deprecated\n\t\tTEXCOORD: 'uv', // deprecated\n\t\tTEXCOORD_1: 'uv2',\n\t\tCOLOR_0: 'color',\n\t\tCOLOR0: 'color', // deprecated\n\t\tCOLOR: 'color', // deprecated\n\t\tWEIGHTS_0: 'skinWeight',\n\t\tWEIGHT: 'skinWeight', // deprecated\n\t\tJOINTS_0: 'skinIndex',\n\t\tJOINT: 'skinIndex' // deprecated\n\t};\n\n\tvar PATH_PROPERTIES = {\n\t\tscale: 'scale',\n\t\ttranslation: 'position',\n\t\trotation: 'quaternion',\n\t\tweights: 'morphTargetInfluences'\n\t};\n\n\tvar INTERPOLATION = {\n\t\tCUBICSPLINE: THREE.InterpolateSmooth, // We use custom interpolation GLTFCubicSplineInterpolation for CUBICSPLINE.\n\t\t // KeyframeTrack.optimize() can't handle glTF Cubic Spline output values layout,\n\t\t // using THREE.InterpolateSmooth for KeyframeTrack instantiation to prevent optimization.\n\t\t // See KeyframeTrack.optimize() for the detail.\n\t\tLINEAR: THREE.InterpolateLinear,\n\t\tSTEP: THREE.InterpolateDiscrete\n\t};\n\n\tvar STATES_ENABLES = {\n\t\t2884: 'CULL_FACE',\n\t\t2929: 'DEPTH_TEST',\n\t\t3042: 'BLEND',\n\t\t3089: 'SCISSOR_TEST',\n\t\t32823: 'POLYGON_OFFSET_FILL',\n\t\t32926: 'SAMPLE_ALPHA_TO_COVERAGE'\n\t};\n\n\tvar ALPHA_MODES = {\n\t\tOPAQUE: 'OPAQUE',\n\t\tMASK: 'MASK',\n\t\tBLEND: 'BLEND'\n\t};\n\n\t/* UTILITY FUNCTIONS */\n\n\tfunction resolveURL( url, path ) {\n\n\t\t// Invalid URL\n\t\tif ( typeof url !== 'string' || url === '' ) return '';\n\n\t\t// Absolute URL http://,https://,//\n\t\tif ( /^(https?:)?\\/\\//i.test( url ) ) return url;\n\n\t\t// Data URI\n\t\tif ( /^data:.*,.*$/i.test( url ) ) return url;\n\n\t\t// Blob URL\n\t\tif ( /^blob:.*$/i.test( url ) ) return url;\n\n\t\t// Relative URL\n\t\treturn path + url;\n\n\t}\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material\n\t */\n\tfunction createDefaultMaterial() {\n\n\t\treturn new THREE.MeshStandardMaterial( {\n\t\t\tcolor: 0xFFFFFF,\n\t\t\temissive: 0x000000,\n\t\t\tmetalness: 1,\n\t\t\troughness: 1,\n\t\t\ttransparent: false,\n\t\t\tdepthTest: true,\n\t\t\tside: THREE.FrontSide\n\t\t} );\n\n\t}\n\n\tfunction addUnknownExtensionsToUserData( knownExtensions, object, objectDef ) {\n\n\t\t// Add unknown glTF extensions to an object's userData.\n\n\t\tfor ( var name in objectDef.extensions ) {\n\n\t\t\tif ( knownExtensions[ name ] === undefined ) {\n\n\t\t\t\tobject.userData.gltfExtensions = object.userData.gltfExtensions || {};\n\t\t\t\tobject.userData.gltfExtensions[ name ] = objectDef.extensions[ name ];\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @param {THREE.Object3D|THREE.Material|THREE.BufferGeometry} object\n\t * @param {GLTF.definition} def\n\t */\n\tfunction assignExtrasToUserData( object, gltfDef ) {\n\n\t\tif ( gltfDef.extras !== undefined ) {\n\n\t\t\tif ( typeof gltfDef.extras === 'object' ) {\n\n\t\t\t\tobject.userData = gltfDef.extras;\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets\n\t *\n\t * @param {THREE.BufferGeometry} geometry\n\t * @param {Array} targets\n\t * @param {Array} accessors\n\t */\n\tfunction addMorphTargets( geometry, targets, accessors ) {\n\n\t\tvar hasMorphPosition = false;\n\t\tvar hasMorphNormal = false;\n\n\t\tfor ( var i = 0, il = targets.length; i < il; i ++ ) {\n\n\t\t\tvar target = targets[ i ];\n\n\t\t\tif ( target.POSITION !== undefined ) hasMorphPosition = true;\n\t\t\tif ( target.NORMAL !== undefined ) hasMorphNormal = true;\n\n\t\t\tif ( hasMorphPosition && hasMorphNormal ) break;\n\n\t\t}\n\n\t\tif ( ! hasMorphPosition && ! hasMorphNormal ) return;\n\n\t\tvar morphPositions = [];\n\t\tvar morphNormals = [];\n\n\t\tfor ( var i = 0, il = targets.length; i < il; i ++ ) {\n\n\t\t\tvar target = targets[ i ];\n\t\t\tvar attributeName = 'morphTarget' + i;\n\n\t\t\tif ( hasMorphPosition ) {\n\n\t\t\t\t// Three.js morph position is absolute value. The formula is\n\t\t\t\t// basePosition\n\t\t\t\t// + weight0 * ( morphPosition0 - basePosition )\n\t\t\t\t// + weight1 * ( morphPosition1 - basePosition )\n\t\t\t\t// ...\n\t\t\t\t// while the glTF one is relative\n\t\t\t\t// basePosition\n\t\t\t\t// + weight0 * glTFmorphPosition0\n\t\t\t\t// + weight1 * glTFmorphPosition1\n\t\t\t\t// ...\n\t\t\t\t// then we need to convert from relative to absolute here.\n\n\t\t\t\tif ( target.POSITION !== undefined ) {\n\n\t\t\t\t\t// Cloning not to pollute original accessor\n\t\t\t\t\tvar positionAttribute = cloneBufferAttribute( accessors[ target.POSITION ] );\n\t\t\t\t\tpositionAttribute.name = attributeName;\n\n\t\t\t\t\tvar position = geometry.attributes.position;\n\n\t\t\t\t\tfor ( var j = 0, jl = positionAttribute.count; j < jl; j ++ ) {\n\n\t\t\t\t\t\tpositionAttribute.setXYZ(\n\t\t\t\t\t\t\tj,\n\t\t\t\t\t\t\tpositionAttribute.getX( j ) + position.getX( j ),\n\t\t\t\t\t\t\tpositionAttribute.getY( j ) + position.getY( j ),\n\t\t\t\t\t\t\tpositionAttribute.getZ( j ) + position.getZ( j )\n\t\t\t\t\t\t);\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tpositionAttribute = geometry.attributes.position;\n\n\t\t\t\t}\n\n\t\t\t\tmorphPositions.push( positionAttribute );\n\n\t\t\t}\n\n\t\t\tif ( hasMorphNormal ) {\n\n\t\t\t\t// see target.POSITION's comment\n\n\t\t\t\tvar normalAttribute;\n\n\t\t\t\tif ( target.NORMAL !== undefined ) {\n\n\t\t\t\t\tvar normalAttribute = cloneBufferAttribute( accessors[ target.NORMAL ] );\n\t\t\t\t\tnormalAttribute.name = attributeName;\n\n\t\t\t\t\tvar normal = geometry.attributes.normal;\n\n\t\t\t\t\tfor ( var j = 0, jl = normalAttribute.count; j < jl; j ++ ) {\n\n\t\t\t\t\t\tnormalAttribute.setXYZ(\n\t\t\t\t\t\t\tj,\n\t\t\t\t\t\t\tnormalAttribute.getX( j ) + normal.getX( j ),\n\t\t\t\t\t\t\tnormalAttribute.getY( j ) + normal.getY( j ),\n\t\t\t\t\t\t\tnormalAttribute.getZ( j ) + normal.getZ( j )\n\t\t\t\t\t\t);\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tnormalAttribute = geometry.attributes.normal;\n\n\t\t\t\t}\n\n\t\t\t\tmorphNormals.push( normalAttribute );\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions;\n\t\tif ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals;\n\n\t}\n\n\t/**\n\t * @param {THREE.Mesh} mesh\n\t * @param {GLTF.Mesh} meshDef\n\t */\n\tfunction updateMorphTargets( mesh, meshDef ) {\n\n\t\tmesh.updateMorphTargets();\n\n\t\tif ( meshDef.weights !== undefined ) {\n\n\t\t\tfor ( var i = 0, il = meshDef.weights.length; i < il; i ++ ) {\n\n\t\t\t\tmesh.morphTargetInfluences[ i ] = meshDef.weights[ i ];\n\n\t\t\t}\n\n\t\t}\n\n\t\t// .extras has user-defined data, so check that .extras.targetNames is an array.\n\t\tif ( meshDef.extras && Array.isArray( meshDef.extras.targetNames ) ) {\n\n\t\t\tvar targetNames = meshDef.extras.targetNames;\n\n\t\t\tif ( mesh.morphTargetInfluences.length === targetNames.length ) {\n\n\t\t\t\tmesh.morphTargetDictionary = {};\n\n\t\t\t\tfor ( var i = 0, il = targetNames.length; i < il; i ++ ) {\n\n\t\t\t\t\tmesh.morphTargetDictionary[ targetNames[ i ] ] = i;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.' );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tfunction isPrimitiveEqual( a, b ) {\n\n\t\tif ( a.indices !== b.indices ) {\n\n\t\t\treturn false;\n\n\t\t}\n\n\t\treturn isObjectEqual( a.attributes, b.attributes );\n\n\t}\n\n\tfunction isObjectEqual( a, b ) {\n\n\t\tif ( Object.keys( a ).length !== Object.keys( b ).length ) return false;\n\n\t\tfor ( var key in a ) {\n\n\t\t\tif ( a[ key ] !== b[ key ] ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\tfunction isArrayEqual( a, b ) {\n\n\t\tif ( a.length !== b.length ) return false;\n\n\t\tfor ( var i = 0, il = a.length; i < il; i ++ ) {\n\n\t\t\tif ( a[ i ] !== b[ i ] ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\tfunction getCachedGeometry( cache, newPrimitive ) {\n\n\t\tfor ( var i = 0, il = cache.length; i < il; i ++ ) {\n\n\t\t\tvar cached = cache[ i ];\n\n\t\t\tif ( isPrimitiveEqual( cached.primitive, newPrimitive ) ) return cached.promise;\n\n\t\t}\n\n\t\treturn null;\n\n\t}\n\n\tfunction getCachedCombinedGeometry( cache, geometries ) {\n\n\t\tfor ( var i = 0, il = cache.length; i < il; i ++ ) {\n\n\t\t\tvar cached = cache[ i ];\n\n\t\t\tif ( isArrayEqual( geometries, cached.baseGeometries ) ) return cached.geometry;\n\n\t\t}\n\n\t\treturn null;\n\n\t}\n\n\tfunction getCachedMultiPassGeometry( cache, geometry, primitives ) {\n\n\t\tfor ( var i = 0, il = cache.length; i < il; i ++ ) {\n\n\t\t\tvar cached = cache[ i ];\n\n\t\t\tif ( geometry === cached.baseGeometry && isArrayEqual( primitives, cached.primitives ) ) return cached.geometry;\n\n\t\t}\n\n\t\treturn null;\n\n\t}\n\n\tfunction cloneBufferAttribute( attribute ) {\n\n\t\tif ( attribute.isInterleavedBufferAttribute ) {\n\n\t\t\tvar count = attribute.count;\n\t\t\tvar itemSize = attribute.itemSize;\n\t\t\tvar array = attribute.array.slice( 0, count * itemSize );\n\n\t\t\tfor ( var i = 0; i < count; ++ i ) {\n\n\t\t\t\tarray[ i ] = attribute.getX( i );\n\t\t\t\tif ( itemSize >= 2 ) array[ i + 1 ] = attribute.getY( i );\n\t\t\t\tif ( itemSize >= 3 ) array[ i + 2 ] = attribute.getZ( i );\n\t\t\t\tif ( itemSize >= 4 ) array[ i + 3 ] = attribute.getW( i );\n\n\t\t\t}\n\n\t\t\treturn new THREE.BufferAttribute( array, itemSize, attribute.normalized );\n\n\t\t}\n\n\t\treturn attribute.clone();\n\n\t}\n\n\t/**\n\t * Checks if we can build a single Mesh with MultiMaterial from multiple primitives.\n\t * Returns true if all primitives use the same attributes/morphAttributes/mode\n\t * and also have index. Otherwise returns false.\n\t *\n\t * @param {Array} primitives\n\t * @return {Boolean}\n\t */\n\tfunction isMultiPassGeometry( primitives ) {\n\n\t\tif ( primitives.length < 2 ) return false;\n\n\t\tvar primitive0 = primitives[ 0 ];\n\t\tvar targets0 = primitive0.targets || [];\n\n\t\tif ( primitive0.indices === undefined ) return false;\n\n\t\tfor ( var i = 1, il = primitives.length; i < il; i ++ ) {\n\n\t\t\tvar primitive = primitives[ i ];\n\n\t\t\tif ( primitive0.mode !== primitive.mode ) return false;\n\t\t\tif ( primitive.indices === undefined ) return false;\n\t\t\tif ( ! isObjectEqual( primitive0.attributes, primitive.attributes ) ) return false;\n\n\t\t\tvar targets = primitive.targets || [];\n\n\t\t\tif ( targets0.length !== targets.length ) return false;\n\n\t\t\tfor ( var j = 0, jl = targets0.length; j < jl; j ++ ) {\n\n\t\t\t\tif ( ! isObjectEqual( targets0[ j ], targets[ j ] ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n\n\t/* GLTF PARSER */\n\n\tfunction GLTFParser( json, extensions, options ) {\n\n\t\tthis.json = json || {};\n\t\tthis.extensions = extensions || {};\n\t\tthis.options = options || {};\n\n\t\t// loader object cache\n\t\tthis.cache = new GLTFRegistry();\n\n\t\t// BufferGeometry caching\n\t\tthis.primitiveCache = [];\n\t\tthis.multiplePrimitivesCache = [];\n\t\tthis.multiPassGeometryCache = [];\n\n\t\tthis.textureLoader = new THREE.TextureLoader( this.options.manager );\n\t\tthis.textureLoader.setCrossOrigin( this.options.crossOrigin );\n\n\t\tthis.fileLoader = new THREE.FileLoader( this.options.manager );\n\t\tthis.fileLoader.setResponseType( 'arraybuffer' );\n\n\t}\n\n\tGLTFParser.prototype.parse = function ( onLoad, onError ) {\n\n\t\tvar json = this.json;\n\n\t\t// Clear the loader cache\n\t\tthis.cache.removeAll();\n\n\t\t// Mark the special nodes/meshes in json for efficient parse\n\t\tthis.markDefs();\n\n\t\t// Fire the callback on complete\n\t\tthis.getMultiDependencies( [\n\n\t\t\t'scene',\n\t\t\t'animation',\n\t\t\t'camera'\n\n\t\t] ).then( function ( dependencies ) {\n\n\t\t\tvar scenes = dependencies.scenes || [];\n\t\t\tvar scene = scenes[ json.scene || 0 ];\n\t\t\tvar animations = dependencies.animations || [];\n\t\t\tvar cameras = dependencies.cameras || [];\n\n\t\t\tonLoad( scene, scenes, cameras, animations, json );\n\n\t\t} ).catch( onError );\n\n\t};\n\n\t/**\n\t * Marks the special nodes/meshes in json for efficient parse.\n\t */\n\tGLTFParser.prototype.markDefs = function () {\n\n\t\tvar nodeDefs = this.json.nodes || [];\n\t\tvar skinDefs = this.json.skins || [];\n\t\tvar meshDefs = this.json.meshes || [];\n\n\t\tvar meshReferences = {};\n\t\tvar meshUses = {};\n\n\t\t// Nothing in the node definition indicates whether it is a Bone or an\n\t\t// Object3D. Use the skins' joint references to mark bones.\n\t\tfor ( var skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) {\n\n\t\t\tvar joints = skinDefs[ skinIndex ].joints;\n\n\t\t\tfor ( var i = 0, il = joints.length; i < il; i ++ ) {\n\n\t\t\t\tnodeDefs[ joints[ i ] ].isBone = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Meshes can (and should) be reused by multiple nodes in a glTF asset. To\n\t\t// avoid having more than one THREE.Mesh with the same name, count\n\t\t// references and rename instances below.\n\t\t//\n\t\t// Example: CesiumMilkTruck sample model reuses \"Wheel\" meshes.\n\t\tfor ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {\n\n\t\t\tvar nodeDef = nodeDefs[ nodeIndex ];\n\n\t\t\tif ( nodeDef.mesh !== undefined ) {\n\n\t\t\t\tif ( meshReferences[ nodeDef.mesh ] === undefined ) {\n\n\t\t\t\t\tmeshReferences[ nodeDef.mesh ] = meshUses[ nodeDef.mesh ] = 0;\n\n\t\t\t\t}\n\n\t\t\t\tmeshReferences[ nodeDef.mesh ] ++;\n\n\t\t\t\t// Nothing in the mesh definition indicates whether it is\n\t\t\t\t// a SkinnedMesh or Mesh. Use the node's mesh reference\n\t\t\t\t// to mark SkinnedMesh if node has skin.\n\t\t\t\tif ( nodeDef.skin !== undefined ) {\n\n\t\t\t\t\tmeshDefs[ nodeDef.mesh ].isSkinnedMesh = true;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.json.meshReferences = meshReferences;\n\t\tthis.json.meshUses = meshUses;\n\n\t};\n\n\t/**\n\t * Requests the specified dependency asynchronously, with caching.\n\t * @param {string} type\n\t * @param {number} index\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.getDependency = function ( type, index ) {\n\n\t\tvar cacheKey = type + ':' + index;\n\t\tvar dependency = this.cache.get( cacheKey );\n\n\t\tif ( ! dependency ) {\n\n\t\t\tswitch ( type ) {\n\n\t\t\t\tcase 'scene':\n\t\t\t\t\tdependency = this.loadScene( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'node':\n\t\t\t\t\tdependency = this.loadNode( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'mesh':\n\t\t\t\t\tdependency = this.loadMesh( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'accessor':\n\t\t\t\t\tdependency = this.loadAccessor( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'bufferView':\n\t\t\t\t\tdependency = this.loadBufferView( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'buffer':\n\t\t\t\t\tdependency = this.loadBuffer( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'material':\n\t\t\t\t\tdependency = this.loadMaterial( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'texture':\n\t\t\t\t\tdependency = this.loadTexture( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'skin':\n\t\t\t\t\tdependency = this.loadSkin( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'animation':\n\t\t\t\t\tdependency = this.loadAnimation( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 'camera':\n\t\t\t\t\tdependency = this.loadCamera( index );\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tthrow new Error( 'Unknown type: ' + type );\n\n\t\t\t}\n\n\t\t\tthis.cache.add( cacheKey, dependency );\n\n\t\t}\n\n\t\treturn dependency;\n\n\t};\n\n\t/**\n\t * Requests all dependencies of the specified type asynchronously, with caching.\n\t * @param {string} type\n\t * @return {Promise>}\n\t */\n\tGLTFParser.prototype.getDependencies = function ( type ) {\n\n\t\tvar dependencies = this.cache.get( type );\n\n\t\tif ( ! dependencies ) {\n\n\t\t\tvar parser = this;\n\t\t\tvar defs = this.json[ type + ( type === 'mesh' ? 'es' : 's' ) ] || [];\n\n\t\t\tdependencies = Promise.all( defs.map( function ( def, index ) {\n\n\t\t\t\treturn parser.getDependency( type, index );\n\n\t\t\t} ) );\n\n\t\t\tthis.cache.add( type, dependencies );\n\n\t\t}\n\n\t\treturn dependencies;\n\n\t};\n\n\t/**\n\t * Requests all multiple dependencies of the specified types asynchronously, with caching.\n\t * @param {Array} types\n\t * @return {Promise>>}\n\t */\n\tGLTFParser.prototype.getMultiDependencies = function ( types ) {\n\n\t\tvar results = {};\n\t\tvar pendings = [];\n\n\t\tfor ( var i = 0, il = types.length; i < il; i ++ ) {\n\n\t\t\tvar type = types[ i ];\n\t\t\tvar value = this.getDependencies( type );\n\n\t\t\tvalue = value.then( function ( key, value ) {\n\n\t\t\t\tresults[ key ] = value;\n\n\t\t\t}.bind( this, type + ( type === 'mesh' ? 'es' : 's' ) ) );\n\n\t\t\tpendings.push( value );\n\n\t\t}\n\n\t\treturn Promise.all( pendings ).then( function () {\n\n\t\t\treturn results;\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views\n\t * @param {number} bufferIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadBuffer = function ( bufferIndex ) {\n\n\t\tvar bufferDef = this.json.buffers[ bufferIndex ];\n\t\tvar loader = this.fileLoader;\n\n\t\tif ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) {\n\n\t\t\tthrow new Error( 'THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.' );\n\n\t\t}\n\n\t\t// If present, GLB container is required to be the first buffer.\n\t\tif ( bufferDef.uri === undefined && bufferIndex === 0 ) {\n\n\t\t\treturn Promise.resolve( this.extensions[ EXTENSIONS.KHR_BINARY_GLTF ].body );\n\n\t\t}\n\n\t\tvar options = this.options;\n\n\t\treturn new Promise( function ( resolve, reject ) {\n\n\t\t\tloader.load( resolveURL( bufferDef.uri, options.path ), resolve, undefined, function () {\n\n\t\t\t\treject( new Error( 'THREE.GLTFLoader: Failed to load buffer \"' + bufferDef.uri + '\".' ) );\n\n\t\t\t} );\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views\n\t * @param {number} bufferViewIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadBufferView = function ( bufferViewIndex ) {\n\n\t\tvar bufferViewDef = this.json.bufferViews[ bufferViewIndex ];\n\n\t\treturn this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) {\n\n\t\t\tvar byteLength = bufferViewDef.byteLength || 0;\n\t\t\tvar byteOffset = bufferViewDef.byteOffset || 0;\n\t\t\treturn buffer.slice( byteOffset, byteOffset + byteLength );\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors\n\t * @param {number} accessorIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadAccessor = function ( accessorIndex ) {\n\n\t\tvar parser = this;\n\t\tvar json = this.json;\n\n\t\tvar accessorDef = this.json.accessors[ accessorIndex ];\n\n\t\tif ( accessorDef.bufferView === undefined && accessorDef.sparse === undefined ) {\n\n\t\t\t// Ignore empty accessors, which may be used to declare runtime\n\t\t\t// information about attributes coming from another source (e.g. Draco\n\t\t\t// compression extension).\n\t\t\treturn null;\n\n\t\t}\n\n\t\tvar pendingBufferViews = [];\n\n\t\tif ( accessorDef.bufferView !== undefined ) {\n\n\t\t\tpendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.bufferView ) );\n\n\t\t} else {\n\n\t\t\tpendingBufferViews.push( null );\n\n\t\t}\n\n\t\tif ( accessorDef.sparse !== undefined ) {\n\n\t\t\tpendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.indices.bufferView ) );\n\t\t\tpendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.values.bufferView ) );\n\n\t\t}\n\n\t\treturn Promise.all( pendingBufferViews ).then( function ( bufferViews ) {\n\n\t\t\tvar bufferView = bufferViews[ 0 ];\n\n\t\t\tvar itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];\n\t\t\tvar TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];\n\n\t\t\t// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.\n\t\t\tvar elementBytes = TypedArray.BYTES_PER_ELEMENT;\n\t\t\tvar itemBytes = elementBytes * itemSize;\n\t\t\tvar byteOffset = accessorDef.byteOffset || 0;\n\t\t\tvar byteStride = json.bufferViews[ accessorDef.bufferView ].byteStride;\n\t\t\tvar normalized = accessorDef.normalized === true;\n\t\t\tvar array, bufferAttribute;\n\n\t\t\t// The buffer is not interleaved if the stride is the item size in bytes.\n\t\t\tif ( byteStride && byteStride !== itemBytes ) {\n\n\t\t\t\tvar ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType;\n\t\t\t\tvar ib = parser.cache.get( ibCacheKey );\n\n\t\t\t\tif ( ! ib ) {\n\n\t\t\t\t\t// Use the full buffer if it's interleaved.\n\t\t\t\t\tarray = new TypedArray( bufferView );\n\n\t\t\t\t\t// Integer parameters to IB/IBA are in array elements, not bytes.\n\t\t\t\t\tib = new THREE.InterleavedBuffer( array, byteStride / elementBytes );\n\n\t\t\t\t\tparser.cache.add( ibCacheKey, ib );\n\n\t\t\t\t}\n\n\t\t\t\tbufferAttribute = new THREE.InterleavedBufferAttribute( ib, itemSize, byteOffset / elementBytes, normalized );\n\n\t\t\t} else {\n\n\t\t\t\tif ( bufferView === null ) {\n\n\t\t\t\t\tarray = new TypedArray( accessorDef.count * itemSize );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tarray = new TypedArray( bufferView, byteOffset, accessorDef.count * itemSize );\n\n\t\t\t\t}\n\n\t\t\t\tbufferAttribute = new THREE.BufferAttribute( array, itemSize, normalized );\n\n\t\t\t}\n\n\t\t\t// https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors\n\t\t\tif ( accessorDef.sparse !== undefined ) {\n\n\t\t\t\tvar itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;\n\t\t\t\tvar TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ];\n\n\t\t\t\tvar byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;\n\t\t\t\tvar byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;\n\n\t\t\t\tvar sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices );\n\t\t\t\tvar sparseValues = new TypedArray( bufferViews[ 2 ], byteOffsetValues, accessorDef.sparse.count * itemSize );\n\n\t\t\t\tif ( bufferView !== null ) {\n\n\t\t\t\t\t// Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.\n\t\t\t\t\tbufferAttribute.setArray( bufferAttribute.array.slice() );\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var i = 0, il = sparseIndices.length; i < il; i ++ ) {\n\n\t\t\t\t\tvar index = sparseIndices[ i ];\n\n\t\t\t\t\tbufferAttribute.setX( index, sparseValues[ i * itemSize ] );\n\t\t\t\t\tif ( itemSize >= 2 ) bufferAttribute.setY( index, sparseValues[ i * itemSize + 1 ] );\n\t\t\t\t\tif ( itemSize >= 3 ) bufferAttribute.setZ( index, sparseValues[ i * itemSize + 2 ] );\n\t\t\t\t\tif ( itemSize >= 4 ) bufferAttribute.setW( index, sparseValues[ i * itemSize + 3 ] );\n\t\t\t\t\tif ( itemSize >= 5 ) throw new Error( 'THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn bufferAttribute;\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures\n\t * @param {number} textureIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadTexture = function ( textureIndex ) {\n\n\t\tvar parser = this;\n\t\tvar json = this.json;\n\t\tvar options = this.options;\n\t\tvar textureLoader = this.textureLoader;\n\n\t\tvar URL = window.URL || window.webkitURL;\n\n\t\tvar textureDef = json.textures[ textureIndex ];\n\n\t\tvar textureExtensions = textureDef.extensions || {};\n\n\t\tvar source;\n\n\t\tif ( textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] ) {\n\n\t\t\tsource = json.images[ textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].source ];\n\n\t\t} else {\n\n\t\t\tsource = json.images[ textureDef.source ];\n\n\t\t}\n\n\t\tvar sourceURI = source.uri;\n\t\tvar isObjectURL = false;\n\n\t\tif ( source.bufferView !== undefined ) {\n\n\t\t\t// Load binary image data from bufferView, if provided.\n\n\t\t\tsourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) {\n\n\t\t\t\tisObjectURL = true;\n\t\t\t\tvar blob = new Blob( [ bufferView ], { type: source.mimeType } );\n\t\t\t\tsourceURI = URL.createObjectURL( blob );\n\t\t\t\treturn sourceURI;\n\n\t\t\t} );\n\n\t\t}\n\n\t\treturn Promise.resolve( sourceURI ).then( function ( sourceURI ) {\n\n\t\t\t// Load Texture resource.\n\n\t\t\tvar loader = THREE.Loader.Handlers.get( sourceURI );\n\n\t\t\tif ( ! loader ) {\n\n\t\t\t\tloader = textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ]\n\t\t\t\t\t? parser.extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].ddsLoader\n\t\t\t\t\t: textureLoader;\n\n\t\t\t}\n\n\t\t\treturn new Promise( function ( resolve, reject ) {\n\n\t\t\t\tloader.load( resolveURL( sourceURI, options.path ), resolve, undefined, reject );\n\n\t\t\t} );\n\n\t\t} ).then( function ( texture ) {\n\n\t\t\t// Clean up resources and configure Texture.\n\n\t\t\tif ( isObjectURL === true ) {\n\n\t\t\t\tURL.revokeObjectURL( sourceURI );\n\n\t\t\t}\n\n\t\t\ttexture.flipY = false;\n\n\t\t\tif ( textureDef.name !== undefined ) texture.name = textureDef.name;\n\n\t\t\tvar samplers = json.samplers || {};\n\t\t\tvar sampler = samplers[ textureDef.sampler ] || {};\n\n\t\t\ttexture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || THREE.LinearFilter;\n\t\t\ttexture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || THREE.LinearMipMapLinearFilter;\n\t\t\ttexture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || THREE.RepeatWrapping;\n\t\t\ttexture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || THREE.RepeatWrapping;\n\n\t\t\treturn texture;\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Asynchronously assigns a texture to the given material parameters.\n\t * @param {Object} materialParams\n\t * @param {string} textureName\n\t * @param {number} textureIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.assignTexture = function ( materialParams, textureName, textureIndex ) {\n\n\t\treturn this.getDependency( 'texture', textureIndex ).then( function ( texture ) {\n\n\t\t\tmaterialParams[ textureName ] = texture;\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials\n\t * @param {number} materialIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadMaterial = function ( materialIndex ) {\n\n\t\tvar parser = this;\n\t\tvar json = this.json;\n\t\tvar extensions = this.extensions;\n\t\tvar materialDef = this.json.materials[ materialIndex ];\n\n\t\tvar materialType;\n\t\tvar materialParams = {};\n\t\tvar materialExtensions = materialDef.extensions || {};\n\n\t\tvar pending = [];\n\n\t\tif ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {\n\n\t\t\tvar sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];\n\t\t\tmaterialType = sgExtension.getMaterialType( materialDef );\n\t\t\tpending.push( sgExtension.extendParams( materialParams, materialDef, parser ) );\n\n\t\t} else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) {\n\n\t\t\tvar kmuExtension = extensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ];\n\t\t\tmaterialType = kmuExtension.getMaterialType( materialDef );\n\t\t\tpending.push( kmuExtension.extendParams( materialParams, materialDef, parser ) );\n\n\t\t} else {\n\n\t\t\t// Specification:\n\t\t\t// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material\n\n\t\t\tmaterialType = THREE.MeshStandardMaterial;\n\n\t\t\tvar metallicRoughness = materialDef.pbrMetallicRoughness || {};\n\n\t\t\tmaterialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );\n\t\t\tmaterialParams.opacity = 1.0;\n\n\t\t\tif ( Array.isArray( metallicRoughness.baseColorFactor ) ) {\n\n\t\t\t\tvar array = metallicRoughness.baseColorFactor;\n\n\t\t\t\tmaterialParams.color.fromArray( array );\n\t\t\t\tmaterialParams.opacity = array[ 3 ];\n\n\t\t\t}\n\n\t\t\tif ( metallicRoughness.baseColorTexture !== undefined ) {\n\n\t\t\t\tpending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture.index ) );\n\n\t\t\t}\n\n\t\t\tmaterialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;\n\t\t\tmaterialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;\n\n\t\t\tif ( metallicRoughness.metallicRoughnessTexture !== undefined ) {\n\n\t\t\t\tvar textureIndex = metallicRoughness.metallicRoughnessTexture.index;\n\t\t\t\tpending.push( parser.assignTexture( materialParams, 'metalnessMap', textureIndex ) );\n\t\t\t\tpending.push( parser.assignTexture( materialParams, 'roughnessMap', textureIndex ) );\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( materialDef.doubleSided === true ) {\n\n\t\t\tmaterialParams.side = THREE.DoubleSide;\n\n\t\t}\n\n\t\tvar alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;\n\n\t\tif ( alphaMode === ALPHA_MODES.BLEND ) {\n\n\t\t\tmaterialParams.transparent = true;\n\n\t\t} else {\n\n\t\t\tmaterialParams.transparent = false;\n\n\t\t\tif ( alphaMode === ALPHA_MODES.MASK ) {\n\n\t\t\t\tmaterialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( materialDef.normalTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {\n\n\t\t\tpending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture.index ) );\n\n\t\t\tmaterialParams.normalScale = new THREE.Vector2( 1, 1 );\n\n\t\t\tif ( materialDef.normalTexture.scale !== undefined ) {\n\n\t\t\t\tmaterialParams.normalScale.set( materialDef.normalTexture.scale, materialDef.normalTexture.scale );\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( materialDef.occlusionTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {\n\n\t\t\tpending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture.index ) );\n\n\t\t\tif ( materialDef.occlusionTexture.strength !== undefined ) {\n\n\t\t\t\tmaterialParams.aoMapIntensity = materialDef.occlusionTexture.strength;\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( materialDef.emissiveFactor !== undefined && materialType !== THREE.MeshBasicMaterial ) {\n\n\t\t\tmaterialParams.emissive = new THREE.Color().fromArray( materialDef.emissiveFactor );\n\n\t\t}\n\n\t\tif ( materialDef.emissiveTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {\n\n\t\t\tpending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture.index ) );\n\n\t\t}\n\n\t\treturn Promise.all( pending ).then( function () {\n\n\t\t\tvar material;\n\n\t\t\tif ( materialType === THREE.ShaderMaterial ) {\n\n\t\t\t\tmaterial = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );\n\n\t\t\t} else {\n\n\t\t\t\tmaterial = new materialType( materialParams );\n\n\t\t\t}\n\n\t\t\tif ( materialDef.name !== undefined ) material.name = materialDef.name;\n\n\t\t\t// Normal map textures use OpenGL conventions:\n\t\t\t// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#materialnormaltexture\n\t\t\tif ( material.normalScale ) {\n\n\t\t\t\tmaterial.normalScale.y = - material.normalScale.y;\n\n\t\t\t}\n\n\t\t\t// baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.\n\t\t\tif ( material.map ) material.map.encoding = THREE.sRGBEncoding;\n\t\t\tif ( material.emissiveMap ) material.emissiveMap.encoding = THREE.sRGBEncoding;\n\t\t\tif ( material.specularMap ) material.specularMap.encoding = THREE.sRGBEncoding;\n\n\t\t\tassignExtrasToUserData( material, materialDef );\n\n\t\t\tif ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef );\n\n\t\t\treturn material;\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * @param {THREE.BufferGeometry} geometry\n\t * @param {GLTF.Primitive} primitiveDef\n\t * @param {Array} accessors\n\t */\n\tfunction addPrimitiveAttributes( geometry, primitiveDef, accessors ) {\n\n\t\tvar attributes = primitiveDef.attributes;\n\n\t\tfor ( var gltfAttributeName in attributes ) {\n\n\t\t\tvar threeAttributeName = ATTRIBUTES[ gltfAttributeName ];\n\t\t\tvar bufferAttribute = accessors[ attributes[ gltfAttributeName ] ];\n\n\t\t\t// Skip attributes already provided by e.g. Draco extension.\n\t\t\tif ( ! threeAttributeName ) continue;\n\t\t\tif ( threeAttributeName in geometry.attributes ) continue;\n\n\t\t\tgeometry.addAttribute( threeAttributeName, bufferAttribute );\n\n\t\t}\n\n\t\tif ( primitiveDef.indices !== undefined && ! geometry.index ) {\n\n\t\t\tgeometry.setIndex( accessors[ primitiveDef.indices ] );\n\n\t\t}\n\n\t\tif ( primitiveDef.targets !== undefined ) {\n\n\t\t\taddMorphTargets( geometry, primitiveDef.targets, accessors );\n\n\t\t}\n\n\t\tassignExtrasToUserData( geometry, primitiveDef );\n\n\t}\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry\n\t *\n\t * Creates BufferGeometries from primitives.\n\t * If we can build a single BufferGeometry with .groups from multiple primitives, returns one BufferGeometry.\n\t * Otherwise, returns BufferGeometries without .groups as many as primitives.\n\t *\n\t * @param {Array} primitives\n\t * @return {Promise>}\n\t */\n\tGLTFParser.prototype.loadGeometries = function ( primitives ) {\n\n\t\tvar parser = this;\n\t\tvar extensions = this.extensions;\n\t\tvar cache = this.primitiveCache;\n\n\t\tvar isMultiPass = isMultiPassGeometry( primitives );\n\t\tvar originalPrimitives;\n\n\t\tif ( isMultiPass ) {\n\n\t\t\toriginalPrimitives = primitives; // save original primitives and use later\n\n\t\t\t// We build a single BufferGeometry with .groups from multiple primitives\n\t\t\t// because all primitives share the same attributes/morph/mode and have indices.\n\n\t\t\tprimitives = [ primitives[ 0 ] ];\n\n\t\t\t// Sets .groups and combined indices to a geometry later in this method.\n\n\t\t}\n\n\t\treturn this.getDependencies( 'accessor' ).then( function ( accessors ) {\n\n\t\t\tvar pending = [];\n\n\t\t\tfor ( var i = 0, il = primitives.length; i < il; i ++ ) {\n\n\t\t\t\tvar primitive = primitives[ i ];\n\n\t\t\t\t// See if we've already created this geometry\n\t\t\t\tvar cached = getCachedGeometry( cache, primitive );\n\n\t\t\t\tif ( cached ) {\n\n\t\t\t\t\t// Use the cached geometry if it exists\n\t\t\t\t\tpending.push( cached );\n\n\t\t\t\t} else if ( primitive.extensions && primitive.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ] ) {\n\n\t\t\t\t\t// Use DRACO geometry if available\n\t\t\t\t\tvar geometryPromise = extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]\n\t\t\t\t\t\t.decodePrimitive( primitive, parser )\n\t\t\t\t\t\t.then( function ( geometry ) {\n\n\t\t\t\t\t\t\taddPrimitiveAttributes( geometry, primitive, accessors );\n\n\t\t\t\t\t\t\treturn geometry;\n\n\t\t\t\t\t\t} );\n\n\t\t\t\t\tcache.push( { primitive: primitive, promise: geometryPromise } );\n\n\t\t\t\t\tpending.push( geometryPromise );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// Otherwise create a new geometry\n\t\t\t\t\tvar geometry = new THREE.BufferGeometry();\n\n\t\t\t\t\taddPrimitiveAttributes( geometry, primitive, accessors );\n\n\t\t\t\t\tvar geometryPromise = Promise.resolve( geometry );\n\n\t\t\t\t\t// Cache this geometry\n\t\t\t\t\tcache.push( { primitive: primitive, promise: geometryPromise } );\n\n\t\t\t\t\tpending.push( geometryPromise );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn Promise.all( pending ).then( function ( geometries ) {\n\n\t\t\t\tif ( isMultiPass ) {\n\n\t\t\t\t\tvar baseGeometry = geometries[ 0 ];\n\n\t\t\t\t\t// See if we've already created this combined geometry\n\t\t\t\t\tvar cache = parser.multiPassGeometryCache;\n\t\t\t\t\tvar cached = getCachedMultiPassGeometry( cache, baseGeometry, originalPrimitives );\n\n\t\t\t\t\tif ( cached !== null ) return [ cached.geometry ];\n\n\t\t\t\t\t// Cloning geometry because of index override.\n\t\t\t\t\t// Attributes can be reused so cloning by myself here.\n\t\t\t\t\tvar geometry = new THREE.BufferGeometry();\n\n\t\t\t\t\tgeometry.name = baseGeometry.name;\n\t\t\t\t\tgeometry.userData = baseGeometry.userData;\n\n\t\t\t\t\tfor ( var key in baseGeometry.attributes ) geometry.addAttribute( key, baseGeometry.attributes[ key ] );\n\t\t\t\t\tfor ( var key in baseGeometry.morphAttributes ) geometry.morphAttributes[ key ] = baseGeometry.morphAttributes[ key ];\n\n\t\t\t\t\tvar indices = [];\n\t\t\t\t\tvar offset = 0;\n\n\t\t\t\t\tfor ( var i = 0, il = originalPrimitives.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tvar accessor = accessors[ originalPrimitives[ i ].indices ];\n\n\t\t\t\t\t\tfor ( var j = 0, jl = accessor.count; j < jl; j ++ ) indices.push( accessor.array[ j ] );\n\n\t\t\t\t\t\tgeometry.addGroup( offset, accessor.count, i );\n\n\t\t\t\t\t\toffset += accessor.count;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tgeometry.setIndex( indices );\n\n\t\t\t\t\tcache.push( { geometry: geometry, baseGeometry: baseGeometry, primitives: originalPrimitives } );\n\n\t\t\t\t\treturn [ geometry ];\n\n\t\t\t\t} else if ( geometries.length > 1 && THREE.BufferGeometryUtils !== undefined ) {\n\n\t\t\t\t\t// Tries to merge geometries with BufferGeometryUtils if possible\n\n\t\t\t\t\tfor ( var i = 1, il = primitives.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t// can't merge if draw mode is different\n\t\t\t\t\t\tif ( primitives[ 0 ].mode !== primitives[ i ].mode ) return geometries;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// See if we've already created this combined geometry\n\t\t\t\t\tvar cache = parser.multiplePrimitivesCache;\n\t\t\t\t\tvar cached = getCachedCombinedGeometry( cache, geometries );\n\n\t\t\t\t\tif ( cached ) {\n\n\t\t\t\t\t\tif ( cached.geometry !== null ) return [ cached.geometry ];\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tvar geometry = THREE.BufferGeometryUtils.mergeBufferGeometries( geometries, true );\n\n\t\t\t\t\t\tcache.push( { geometry: geometry, baseGeometries: geometries } );\n\n\t\t\t\t\t\tif ( geometry !== null ) return [ geometry ];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn geometries;\n\n\t\t\t} );\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes\n\t * @param {number} meshIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadMesh = function ( meshIndex ) {\n\n\t\tvar scope = this;\n\t\tvar json = this.json;\n\t\tvar extensions = this.extensions;\n\n\t\tvar meshDef = this.json.meshes[ meshIndex ];\n\n\t\treturn this.getMultiDependencies( [\n\n\t\t\t'accessor',\n\t\t\t'material'\n\n\t\t] ).then( function ( dependencies ) {\n\n\t\t\tvar primitives = meshDef.primitives;\n\t\t\tvar originalMaterials = [];\n\n\t\t\tfor ( var i = 0, il = primitives.length; i < il; i ++ ) {\n\n\t\t\t\toriginalMaterials[ i ] = primitives[ i ].material === undefined\n\t\t\t\t\t? createDefaultMaterial()\n\t\t\t\t\t: dependencies.materials[ primitives[ i ].material ];\n\n\t\t\t}\n\n\t\t\treturn scope.loadGeometries( primitives ).then( function ( geometries ) {\n\n\t\t\t\tvar isMultiMaterial = geometries.length === 1 && geometries[ 0 ].groups.length > 0;\n\n\t\t\t\tvar meshes = [];\n\n\t\t\t\tfor ( var i = 0, il = geometries.length; i < il; i ++ ) {\n\n\t\t\t\t\tvar geometry = geometries[ i ];\n\t\t\t\t\tvar primitive = primitives[ i ];\n\n\t\t\t\t\t// 1. create Mesh\n\n\t\t\t\t\tvar mesh;\n\n\t\t\t\t\tvar material = isMultiMaterial ? originalMaterials : originalMaterials[ i ];\n\n\t\t\t\t\tif ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES ||\n\t\t\t\t\t\tprimitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ||\n\t\t\t\t\t\tprimitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ||\n\t\t\t\t\t\tprimitive.mode === undefined ) {\n\n\t\t\t\t\t\t// .isSkinnedMesh isn't in glTF spec. See .markDefs()\n\t\t\t\t\t\tmesh = meshDef.isSkinnedMesh === true\n\t\t\t\t\t\t\t? new THREE.SkinnedMesh( geometry, material )\n\t\t\t\t\t\t\t: new THREE.Mesh( geometry, material );\n\n\t\t\t\t\t\tif ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) {\n\n\t\t\t\t\t\t\tmesh.drawMode = THREE.TriangleStripDrawMode;\n\n\t\t\t\t\t\t} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {\n\n\t\t\t\t\t\t\tmesh.drawMode = THREE.TriangleFanDrawMode;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) {\n\n\t\t\t\t\t\tmesh = new THREE.LineSegments( geometry, material );\n\n\t\t\t\t\t} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) {\n\n\t\t\t\t\t\tmesh = new THREE.Line( geometry, material );\n\n\t\t\t\t\t} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) {\n\n\t\t\t\t\t\tmesh = new THREE.LineLoop( geometry, material );\n\n\t\t\t\t\t} else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) {\n\n\t\t\t\t\t\tmesh = new THREE.Points( geometry, material );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tthrow new Error( 'THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( Object.keys( mesh.geometry.morphAttributes ).length > 0 ) {\n\n\t\t\t\t\t\tupdateMorphTargets( mesh, meshDef );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tmesh.name = meshDef.name || ( 'mesh_' + meshIndex );\n\n\t\t\t\t\tif ( geometries.length > 1 ) mesh.name += '_' + i;\n\n\t\t\t\t\tassignExtrasToUserData( mesh, meshDef );\n\n\t\t\t\t\tmeshes.push( mesh );\n\n\t\t\t\t\t// 2. update Material depending on Mesh and BufferGeometry\n\n\t\t\t\t\tvar materials = isMultiMaterial ? mesh.material : [ mesh.material ];\n\n\t\t\t\t\tvar useVertexColors = geometry.attributes.color !== undefined;\n\t\t\t\t\tvar useFlatShading = geometry.attributes.normal === undefined;\n\t\t\t\t\tvar useSkinning = mesh.isSkinnedMesh === true;\n\t\t\t\t\tvar useMorphTargets = Object.keys( geometry.morphAttributes ).length > 0;\n\t\t\t\t\tvar useMorphNormals = useMorphTargets && geometry.morphAttributes.normal !== undefined;\n\n\t\t\t\t\tfor ( var j = 0, jl = materials.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar material = materials[ j ];\n\n\t\t\t\t\t\tif ( mesh.isPoints ) {\n\n\t\t\t\t\t\t\tvar cacheKey = 'PointsMaterial:' + material.uuid;\n\n\t\t\t\t\t\t\tvar pointsMaterial = scope.cache.get( cacheKey );\n\n\t\t\t\t\t\t\tif ( ! pointsMaterial ) {\n\n\t\t\t\t\t\t\t\tpointsMaterial = new THREE.PointsMaterial();\n\t\t\t\t\t\t\t\tTHREE.Material.prototype.copy.call( pointsMaterial, material );\n\t\t\t\t\t\t\t\tpointsMaterial.color.copy( material.color );\n\t\t\t\t\t\t\t\tpointsMaterial.map = material.map;\n\t\t\t\t\t\t\t\tpointsMaterial.lights = false; // PointsMaterial doesn't support lights yet\n\n\t\t\t\t\t\t\t\tscope.cache.add( cacheKey, pointsMaterial );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tmaterial = pointsMaterial;\n\n\t\t\t\t\t\t} else if ( mesh.isLine ) {\n\n\t\t\t\t\t\t\tvar cacheKey = 'LineBasicMaterial:' + material.uuid;\n\n\t\t\t\t\t\t\tvar lineMaterial = scope.cache.get( cacheKey );\n\n\t\t\t\t\t\t\tif ( ! lineMaterial ) {\n\n\t\t\t\t\t\t\t\tlineMaterial = new THREE.LineBasicMaterial();\n\t\t\t\t\t\t\t\tTHREE.Material.prototype.copy.call( lineMaterial, material );\n\t\t\t\t\t\t\t\tlineMaterial.color.copy( material.color );\n\t\t\t\t\t\t\t\tlineMaterial.lights = false; // LineBasicMaterial doesn't support lights yet\n\n\t\t\t\t\t\t\t\tscope.cache.add( cacheKey, lineMaterial );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tmaterial = lineMaterial;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Clone the material if it will be modified\n\t\t\t\t\t\tif ( useVertexColors || useFlatShading || useSkinning || useMorphTargets ) {\n\n\t\t\t\t\t\t\tvar cacheKey = 'ClonedMaterial:' + material.uuid + ':';\n\n\t\t\t\t\t\t\tif ( material.isGLTFSpecularGlossinessMaterial ) cacheKey += 'specular-glossiness:';\n\t\t\t\t\t\t\tif ( useSkinning ) cacheKey += 'skinning:';\n\t\t\t\t\t\t\tif ( useVertexColors ) cacheKey += 'vertex-colors:';\n\t\t\t\t\t\t\tif ( useFlatShading ) cacheKey += 'flat-shading:';\n\t\t\t\t\t\t\tif ( useMorphTargets ) cacheKey += 'morph-targets:';\n\t\t\t\t\t\t\tif ( useMorphNormals ) cacheKey += 'morph-normals:';\n\n\t\t\t\t\t\t\tvar cachedMaterial = scope.cache.get( cacheKey );\n\n\t\t\t\t\t\t\tif ( ! cachedMaterial ) {\n\n\t\t\t\t\t\t\t\tcachedMaterial = material.isGLTFSpecularGlossinessMaterial\n\t\t\t\t\t\t\t\t\t? extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].cloneMaterial( material )\n\t\t\t\t\t\t\t\t\t: material.clone();\n\n\t\t\t\t\t\t\t\tif ( useSkinning ) cachedMaterial.skinning = true;\n\t\t\t\t\t\t\t\tif ( useVertexColors ) cachedMaterial.vertexColors = THREE.VertexColors;\n\t\t\t\t\t\t\t\tif ( useFlatShading ) cachedMaterial.flatShading = true;\n\t\t\t\t\t\t\t\tif ( useMorphTargets ) cachedMaterial.morphTargets = true;\n\t\t\t\t\t\t\t\tif ( useMorphNormals ) cachedMaterial.morphNormals = true;\n\n\t\t\t\t\t\t\t\tscope.cache.add( cacheKey, cachedMaterial );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tmaterial = cachedMaterial;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tmaterials[ j ] = material;\n\n\t\t\t\t\t\t// workarounds for mesh and geometry\n\n\t\t\t\t\t\tif ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) {\n\n\t\t\t\t\t\t\tconsole.log( 'THREE.GLTFLoader: Duplicating UVs to support aoMap.' );\n\t\t\t\t\t\t\tgeometry.addAttribute( 'uv2', new THREE.BufferAttribute( geometry.attributes.uv.array, 2 ) );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( material.isGLTFSpecularGlossinessMaterial ) {\n\n\t\t\t\t\t\t\t// for GLTFSpecularGlossinessMaterial(ShaderMaterial) uniforms runtime update\n\t\t\t\t\t\t\tmesh.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tmesh.material = isMultiMaterial ? materials : materials[ 0 ];\n\n\t\t\t\t}\n\n\t\t\t\tif ( meshes.length === 1 ) {\n\n\t\t\t\t\treturn meshes[ 0 ];\n\n\t\t\t\t}\n\n\t\t\t\tvar group = new THREE.Group();\n\n\t\t\t\tfor ( var i = 0, il = meshes.length; i < il; i ++ ) {\n\n\t\t\t\t\tgroup.add( meshes[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\treturn group;\n\n\t\t\t} );\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras\n\t * @param {number} cameraIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadCamera = function ( cameraIndex ) {\n\n\t\tvar camera;\n\t\tvar cameraDef = this.json.cameras[ cameraIndex ];\n\t\tvar params = cameraDef[ cameraDef.type ];\n\n\t\tif ( ! params ) {\n\n\t\t\tconsole.warn( 'THREE.GLTFLoader: Missing camera parameters.' );\n\t\t\treturn;\n\n\t\t}\n\n\t\tif ( cameraDef.type === 'perspective' ) {\n\n\t\t\tcamera = new THREE.PerspectiveCamera( THREE.Math.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 );\n\n\t\t} else if ( cameraDef.type === 'orthographic' ) {\n\n\t\t\tcamera = new THREE.OrthographicCamera( params.xmag / - 2, params.xmag / 2, params.ymag / 2, params.ymag / - 2, params.znear, params.zfar );\n\n\t\t}\n\n\t\tif ( cameraDef.name !== undefined ) camera.name = cameraDef.name;\n\n\t\tassignExtrasToUserData( camera, cameraDef );\n\n\t\treturn Promise.resolve( camera );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins\n\t * @param {number} skinIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadSkin = function ( skinIndex ) {\n\n\t\tvar skinDef = this.json.skins[ skinIndex ];\n\n\t\tvar skinEntry = { joints: skinDef.joints };\n\n\t\tif ( skinDef.inverseBindMatrices === undefined ) {\n\n\t\t\treturn Promise.resolve( skinEntry );\n\n\t\t}\n\n\t\treturn this.getDependency( 'accessor', skinDef.inverseBindMatrices ).then( function ( accessor ) {\n\n\t\t\tskinEntry.inverseBindMatrices = accessor;\n\n\t\t\treturn skinEntry;\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations\n\t * @param {number} animationIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadAnimation = function ( animationIndex ) {\n\n\t\tvar json = this.json;\n\n\t\tvar animationDef = this.json.animations[ animationIndex ];\n\n\t\treturn this.getMultiDependencies( [\n\n\t\t\t'accessor',\n\t\t\t'node'\n\n\t\t] ).then( function ( dependencies ) {\n\n\t\t\tvar tracks = [];\n\n\t\t\tfor ( var i = 0, il = animationDef.channels.length; i < il; i ++ ) {\n\n\t\t\t\tvar channel = animationDef.channels[ i ];\n\t\t\t\tvar sampler = animationDef.samplers[ channel.sampler ];\n\n\t\t\t\tif ( sampler ) {\n\n\t\t\t\t\tvar target = channel.target;\n\t\t\t\t\tvar name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.\n\t\t\t\t\tvar input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input;\n\t\t\t\t\tvar output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output;\n\n\t\t\t\t\tvar inputAccessor = dependencies.accessors[ input ];\n\t\t\t\t\tvar outputAccessor = dependencies.accessors[ output ];\n\n\t\t\t\t\tvar node = dependencies.nodes[ name ];\n\n\t\t\t\t\tif ( node ) {\n\n\t\t\t\t\t\tnode.updateMatrix();\n\t\t\t\t\t\tnode.matrixAutoUpdate = true;\n\n\t\t\t\t\t\tvar TypedKeyframeTrack;\n\n\t\t\t\t\t\tswitch ( PATH_PROPERTIES[ target.path ] ) {\n\n\t\t\t\t\t\t\tcase PATH_PROPERTIES.weights:\n\n\t\t\t\t\t\t\t\tTypedKeyframeTrack = THREE.NumberKeyframeTrack;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\tcase PATH_PROPERTIES.rotation:\n\n\t\t\t\t\t\t\t\tTypedKeyframeTrack = THREE.QuaternionKeyframeTrack;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\tcase PATH_PROPERTIES.position:\n\t\t\t\t\t\t\tcase PATH_PROPERTIES.scale:\n\t\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\t\tTypedKeyframeTrack = THREE.VectorKeyframeTrack;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar targetName = node.name ? node.name : node.uuid;\n\n\t\t\t\t\t\tvar interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : THREE.InterpolateLinear;\n\n\t\t\t\t\t\tvar targetNames = [];\n\n\t\t\t\t\t\tif ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {\n\n\t\t\t\t\t\t\t// node can be THREE.Group here but\n\t\t\t\t\t\t\t// PATH_PROPERTIES.weights(morphTargetInfluences) should be\n\t\t\t\t\t\t\t// the property of a mesh object under group.\n\n\t\t\t\t\t\t\tnode.traverse( function ( object ) {\n\n\t\t\t\t\t\t\t\tif ( object.isMesh === true && object.morphTargetInfluences ) {\n\n\t\t\t\t\t\t\t\t\ttargetNames.push( object.name ? object.name : object.uuid );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\ttargetNames.push( targetName );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// KeyframeTrack.optimize() will modify given 'times' and 'values'\n\t\t\t\t\t\t// buffers before creating a truncated copy to keep. Because buffers may\n\t\t\t\t\t\t// be reused by other tracks, make copies here.\n\t\t\t\t\t\tfor ( var j = 0, jl = targetNames.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\tvar track = new TypedKeyframeTrack(\n\t\t\t\t\t\t\t\ttargetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],\n\t\t\t\t\t\t\t\tTHREE.AnimationUtils.arraySlice( inputAccessor.array, 0 ),\n\t\t\t\t\t\t\t\tTHREE.AnimationUtils.arraySlice( outputAccessor.array, 0 ),\n\t\t\t\t\t\t\t\tinterpolation\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\t// Here is the trick to enable custom interpolation.\n\t\t\t\t\t\t\t// Overrides .createInterpolant in a factory method which creates custom interpolation.\n\t\t\t\t\t\t\tif ( sampler.interpolation === 'CUBICSPLINE' ) {\n\n\t\t\t\t\t\t\t\ttrack.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline( result ) {\n\n\t\t\t\t\t\t\t\t\t// A CUBICSPLINE keyframe in glTF has three output values for each input value,\n\t\t\t\t\t\t\t\t\t// representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize()\n\t\t\t\t\t\t\t\t\t// must be divided by three to get the interpolant's sampleSize argument.\n\n\t\t\t\t\t\t\t\t\treturn new GLTFCubicSplineInterpolant( this.times, this.values, this.getValueSize() / 3, result );\n\n\t\t\t\t\t\t\t\t};\n\n\t\t\t\t\t\t\t\t// Workaround, provide an alternate way to know if the interpolant type is cubis spline to track.\n\t\t\t\t\t\t\t\t// track.getInterpolation() doesn't return valid value for custom interpolant.\n\t\t\t\t\t\t\t\ttrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\ttracks.push( track );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar name = animationDef.name !== undefined ? animationDef.name : 'animation_' + animationIndex;\n\n\t\t\treturn new THREE.AnimationClip( name, undefined, tracks );\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy\n\t * @param {number} nodeIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadNode = function ( nodeIndex ) {\n\n\t\tvar json = this.json;\n\t\tvar extensions = this.extensions;\n\n\t\tvar meshReferences = this.json.meshReferences;\n\t\tvar meshUses = this.json.meshUses;\n\n\t\tvar nodeDef = this.json.nodes[ nodeIndex ];\n\n\t\treturn this.getMultiDependencies( [\n\n\t\t\t'mesh',\n\t\t\t'skin',\n\t\t\t'camera',\n\t\t\t'light'\n\n\t\t] ).then( function ( dependencies ) {\n\n\t\t\tvar node;\n\n\t\t\t// .isBone isn't in glTF spec. See .markDefs\n\t\t\tif ( nodeDef.isBone === true ) {\n\n\t\t\t\tnode = new THREE.Bone();\n\n\t\t\t} else if ( nodeDef.mesh !== undefined ) {\n\n\t\t\t\tvar mesh = dependencies.meshes[ nodeDef.mesh ];\n\n\t\t\t\tif ( meshReferences[ nodeDef.mesh ] > 1 ) {\n\n\t\t\t\t\tvar instanceNum = meshUses[ nodeDef.mesh ] ++;\n\n\t\t\t\t\tnode = mesh.clone();\n\t\t\t\t\tnode.name += '_instance_' + instanceNum;\n\n\t\t\t\t\t// onBeforeRender copy for Specular-Glossiness\n\t\t\t\t\tnode.onBeforeRender = mesh.onBeforeRender;\n\n\t\t\t\t\tfor ( var i = 0, il = node.children.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tnode.children[ i ].name += '_instance_' + instanceNum;\n\t\t\t\t\t\tnode.children[ i ].onBeforeRender = mesh.children[ i ].onBeforeRender;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tnode = mesh;\n\n\t\t\t\t}\n\n\t\t\t} else if ( nodeDef.camera !== undefined ) {\n\n\t\t\t\tnode = dependencies.cameras[ nodeDef.camera ];\n\n\t\t\t} else if ( nodeDef.extensions\n\t\t\t\t\t && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ]\n\t\t\t\t\t && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light !== undefined ) {\n\n\t\t\t\tvar lights = extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].lights;\n\t\t\t\tnode = lights[ nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light ];\n\n\t\t\t} else {\n\n\t\t\t\tnode = new THREE.Object3D();\n\n\t\t\t}\n\n\t\t\tif ( nodeDef.name !== undefined ) {\n\n\t\t\t\tnode.name = THREE.PropertyBinding.sanitizeNodeName( nodeDef.name );\n\n\t\t\t}\n\n\t\t\tassignExtrasToUserData( node, nodeDef );\n\n\t\t\tif ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef );\n\n\t\t\tif ( nodeDef.matrix !== undefined ) {\n\n\t\t\t\tvar matrix = new THREE.Matrix4();\n\t\t\t\tmatrix.fromArray( nodeDef.matrix );\n\t\t\t\tnode.applyMatrix( matrix );\n\n\t\t\t} else {\n\n\t\t\t\tif ( nodeDef.translation !== undefined ) {\n\n\t\t\t\t\tnode.position.fromArray( nodeDef.translation );\n\n\t\t\t\t}\n\n\t\t\t\tif ( nodeDef.rotation !== undefined ) {\n\n\t\t\t\t\tnode.quaternion.fromArray( nodeDef.rotation );\n\n\t\t\t\t}\n\n\t\t\t\tif ( nodeDef.scale !== undefined ) {\n\n\t\t\t\t\tnode.scale.fromArray( nodeDef.scale );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn node;\n\n\t\t} );\n\n\t};\n\n\t/**\n\t * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes\n\t * @param {number} sceneIndex\n\t * @return {Promise}\n\t */\n\tGLTFParser.prototype.loadScene = function () {\n\n\t\t// scene node hierachy builder\n\n\t\tfunction buildNodeHierachy( nodeId, parentObject, json, allNodes, skins ) {\n\n\t\t\tvar node = allNodes[ nodeId ];\n\t\t\tvar nodeDef = json.nodes[ nodeId ];\n\n\t\t\t// build skeleton here as well\n\n\t\t\tif ( nodeDef.skin !== undefined ) {\n\n\t\t\t\tvar meshes = node.isGroup === true ? node.children : [ node ];\n\n\t\t\t\tfor ( var i = 0, il = meshes.length; i < il; i ++ ) {\n\n\t\t\t\t\tvar mesh = meshes[ i ];\n\t\t\t\t\tvar skinEntry = skins[ nodeDef.skin ];\n\n\t\t\t\t\tvar bones = [];\n\t\t\t\t\tvar boneInverses = [];\n\n\t\t\t\t\tfor ( var j = 0, jl = skinEntry.joints.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar jointId = skinEntry.joints[ j ];\n\t\t\t\t\t\tvar jointNode = allNodes[ jointId ];\n\n\t\t\t\t\t\tif ( jointNode ) {\n\n\t\t\t\t\t\t\tbones.push( jointNode );\n\n\t\t\t\t\t\t\tvar mat = new THREE.Matrix4();\n\n\t\t\t\t\t\t\tif ( skinEntry.inverseBindMatrices !== undefined ) {\n\n\t\t\t\t\t\t\t\tmat.fromArray( skinEntry.inverseBindMatrices.array, j * 16 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tboneInverses.push( mat );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.GLTFLoader: Joint \"%s\" could not be found.', jointId );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tmesh.bind( new THREE.Skeleton( bones, boneInverses ), mesh.matrixWorld );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// build node hierachy\n\n\t\t\tparentObject.add( node );\n\n\t\t\tif ( nodeDef.children ) {\n\n\t\t\t\tvar children = nodeDef.children;\n\n\t\t\t\tfor ( var i = 0, il = children.length; i < il; i ++ ) {\n\n\t\t\t\t\tvar child = children[ i ];\n\t\t\t\t\tbuildNodeHierachy( child, node, json, allNodes, skins );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn function loadScene( sceneIndex ) {\n\n\t\t\tvar json = this.json;\n\t\t\tvar extensions = this.extensions;\n\t\t\tvar sceneDef = this.json.scenes[ sceneIndex ];\n\n\t\t\treturn this.getMultiDependencies( [\n\n\t\t\t\t'node',\n\t\t\t\t'skin'\n\n\t\t\t] ).then( function ( dependencies ) {\n\n\t\t\t\tvar scene = new THREE.Scene();\n\t\t\t\tif ( sceneDef.name !== undefined ) scene.name = sceneDef.name;\n\n\t\t\t\tassignExtrasToUserData( scene, sceneDef );\n\n\t\t\t\tif ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef );\n\n\t\t\t\tvar nodeIds = sceneDef.nodes || [];\n\n\t\t\t\tfor ( var i = 0, il = nodeIds.length; i < il; i ++ ) {\n\n\t\t\t\t\tbuildNodeHierachy( nodeIds[ i ], scene, json, dependencies.nodes, dependencies.skins );\n\n\t\t\t\t}\n\n\t\t\t\treturn scene;\n\n\t\t\t} );\n\n\t\t};\n\n\t}();\n\n\treturn GLTFLoader;\n\n} )();\n", @@ -257,7 +260,7 @@ "\"use strict\";\nvar window = require(\"global/window\")\nvar isFunction = require(\"is-function\")\nvar parseHeaders = require(\"parse-headers\")\nvar xtend = require(\"xtend\")\n\nmodule.exports = createXHR\ncreateXHR.XMLHttpRequest = window.XMLHttpRequest || noop\ncreateXHR.XDomainRequest = \"withCredentials\" in (new createXHR.XMLHttpRequest()) ? createXHR.XMLHttpRequest : window.XDomainRequest\n\nforEachArray([\"get\", \"put\", \"post\", \"patch\", \"head\", \"delete\"], function(method) {\n createXHR[method === \"delete\" ? \"del\" : method] = function(uri, options, callback) {\n options = initParams(uri, options, callback)\n options.method = method.toUpperCase()\n return _createXHR(options)\n }\n})\n\nfunction forEachArray(array, iterator) {\n for (var i = 0; i < array.length; i++) {\n iterator(array[i])\n }\n}\n\nfunction isEmpty(obj){\n for(var i in obj){\n if(obj.hasOwnProperty(i)) return false\n }\n return true\n}\n\nfunction initParams(uri, options, callback) {\n var params = uri\n\n if (isFunction(options)) {\n callback = options\n if (typeof uri === \"string\") {\n params = {uri:uri}\n }\n } else {\n params = xtend(options, {uri: uri})\n }\n\n params.callback = callback\n return params\n}\n\nfunction createXHR(uri, options, callback) {\n options = initParams(uri, options, callback)\n return _createXHR(options)\n}\n\nfunction _createXHR(options) {\n if(typeof options.callback === \"undefined\"){\n throw new Error(\"callback argument missing\")\n }\n\n var called = false\n var callback = function cbOnce(err, response, body){\n if(!called){\n called = true\n options.callback(err, response, body)\n }\n }\n\n function readystatechange() {\n if (xhr.readyState === 4) {\n setTimeout(loadFunc, 0)\n }\n }\n\n function getBody() {\n // Chrome with requestType=blob throws errors arround when even testing access to responseText\n var body = undefined\n\n if (xhr.response) {\n body = xhr.response\n } else {\n body = xhr.responseText || getXml(xhr)\n }\n\n if (isJson) {\n try {\n body = JSON.parse(body)\n } catch (e) {}\n }\n\n return body\n }\n\n function errorFunc(evt) {\n clearTimeout(timeoutTimer)\n if(!(evt instanceof Error)){\n evt = new Error(\"\" + (evt || \"Unknown XMLHttpRequest Error\") )\n }\n evt.statusCode = 0\n return callback(evt, failureResponse)\n }\n\n // will load the data & process the response in a special response object\n function loadFunc() {\n if (aborted) return\n var status\n clearTimeout(timeoutTimer)\n if(options.useXDR && xhr.status===undefined) {\n //IE8 CORS GET successful response doesn't have a status field, but body is fine\n status = 200\n } else {\n status = (xhr.status === 1223 ? 204 : xhr.status)\n }\n var response = failureResponse\n var err = null\n\n if (status !== 0){\n response = {\n body: getBody(),\n statusCode: status,\n method: method,\n headers: {},\n url: uri,\n rawRequest: xhr\n }\n if(xhr.getAllResponseHeaders){ //remember xhr can in fact be XDR for CORS in IE\n response.headers = parseHeaders(xhr.getAllResponseHeaders())\n }\n } else {\n err = new Error(\"Internal XMLHttpRequest Error\")\n }\n return callback(err, response, response.body)\n }\n\n var xhr = options.xhr || null\n\n if (!xhr) {\n if (options.cors || options.useXDR) {\n xhr = new createXHR.XDomainRequest()\n }else{\n xhr = new createXHR.XMLHttpRequest()\n }\n }\n\n var key\n var aborted\n var uri = xhr.url = options.uri || options.url\n var method = xhr.method = options.method || \"GET\"\n var body = options.body || options.data\n var headers = xhr.headers = options.headers || {}\n var sync = !!options.sync\n var isJson = false\n var timeoutTimer\n var failureResponse = {\n body: undefined,\n headers: {},\n statusCode: 0,\n method: method,\n url: uri,\n rawRequest: xhr\n }\n\n if (\"json\" in options && options.json !== false) {\n isJson = true\n headers[\"accept\"] || headers[\"Accept\"] || (headers[\"Accept\"] = \"application/json\") //Don't override existing accept header declared by user\n if (method !== \"GET\" && method !== \"HEAD\") {\n headers[\"content-type\"] || headers[\"Content-Type\"] || (headers[\"Content-Type\"] = \"application/json\") //Don't override existing accept header declared by user\n body = JSON.stringify(options.json === true ? body : options.json)\n }\n }\n\n xhr.onreadystatechange = readystatechange\n xhr.onload = loadFunc\n xhr.onerror = errorFunc\n // IE9 must have onprogress be set to a unique function.\n xhr.onprogress = function () {\n // IE must die\n }\n xhr.onabort = function(){\n aborted = true;\n }\n xhr.ontimeout = errorFunc\n xhr.open(method, uri, !sync, options.username, options.password)\n //has to be after open\n if(!sync) {\n xhr.withCredentials = !!options.withCredentials\n }\n // Cannot set timeout with sync request\n // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly\n // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent\n if (!sync && options.timeout > 0 ) {\n timeoutTimer = setTimeout(function(){\n if (aborted) return\n aborted = true//IE9 may still call readystatechange\n xhr.abort(\"timeout\")\n var e = new Error(\"XMLHttpRequest timeout\")\n e.code = \"ETIMEDOUT\"\n errorFunc(e)\n }, options.timeout )\n }\n\n if (xhr.setRequestHeader) {\n for(key in headers){\n if(headers.hasOwnProperty(key)){\n xhr.setRequestHeader(key, headers[key])\n }\n }\n } else if (options.headers && !isEmpty(options.headers)) {\n throw new Error(\"Headers cannot be set on an XDomainRequest object\")\n }\n\n if (\"responseType\" in options) {\n xhr.responseType = options.responseType\n }\n\n if (\"beforeSend\" in options &&\n typeof options.beforeSend === \"function\"\n ) {\n options.beforeSend(xhr)\n }\n\n // Microsoft Edge browser sends \"undefined\" when send is called with undefined value.\n // XMLHttpRequest spec says to pass null as body to indicate no body\n // See https://github.com/naugtur/xhr/issues/100.\n xhr.send(body || null)\n\n return xhr\n\n\n}\n\nfunction getXml(xhr) {\n // xhr.responseXML will throw Exception \"InvalidStateError\" or \"DOMException\"\n // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.\n try {\n if (xhr.responseType === \"document\") {\n return xhr.responseXML\n }\n var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === \"parsererror\"\n if (xhr.responseType === \"\" && !firefoxBugTakenEffect) {\n return xhr.responseXML\n }\n } catch (e) {}\n\n return null\n}\n\nfunction noop() {}\n", "module.exports = (function xmlparser() {\n //common browsers\n if (typeof self.DOMParser !== 'undefined') {\n return function(str) {\n var parser = new self.DOMParser()\n return parser.parseFromString(str, 'application/xml')\n }\n } \n\n //IE8 fallback\n if (typeof self.ActiveXObject !== 'undefined'\n && new self.ActiveXObject('Microsoft.XMLDOM')) {\n return function(str) {\n var xmlDoc = new self.ActiveXObject(\"Microsoft.XMLDOM\")\n xmlDoc.async = \"false\"\n xmlDoc.loadXML(str)\n return xmlDoc\n }\n }\n\n //last resort fallback\n return function(str) {\n var div = document.createElement('div')\n div.innerHTML = str\n return div\n }\n})()\n", "module.exports = extend\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nfunction extend() {\n var target = {}\n\n for (var i = 0; i < arguments.length; i++) {\n var source = arguments[i]\n\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n target[key] = source[key]\n }\n }\n }\n\n return target\n}\n", - "module.exports={\n \"name\": \"aframe\",\n \"version\": \"0.8.2\",\n \"description\": \"A web framework for building virtual reality experiences.\",\n \"homepage\": \"https://aframe.io/\",\n \"main\": \"dist/aframe-master.js\",\n \"scripts\": {\n \"browserify\": \"browserify src/index.js -s 'AFRAME' -p browserify-derequire\",\n \"build\": \"shx mkdir -p build/ && npm run browserify -- --debug -t [envify --INSPECTOR_VERSION dev] -o build/aframe.js\",\n \"codecov\": \"codecov\",\n \"dev\": \"npm run build && cross-env INSPECTOR_VERSION=dev node ./scripts/budo -t envify\",\n \"dist\": \"node scripts/updateVersionLog.js && npm run dist:min && npm run dist:max\",\n \"dist:max\": \"npm run browserify -s -- --debug | exorcist dist/aframe-master.js.map > dist/aframe-master.js\",\n \"dist:min\": \"npm run browserify -s -- --debug -p [minifyify --map aframe-master.min.js.map --output dist/aframe-master.min.js.map] -o dist/aframe-master.min.js\",\n \"docs\": \"markserv --dir docs --port 9001\",\n \"preghpages\": \"node ./scripts/preghpages.js\",\n \"ghpages\": \"ghpages -p gh-pages/\",\n \"lint\": \"semistandard -v | snazzy\",\n \"lint:fix\": \"semistandard --fix\",\n \"precommit\": \"npm run lint\",\n \"prepush\": \"node scripts/testOnlyCheck.js\",\n \"prerelease\": \"node scripts/release.js 0.7.1 0.8.0\",\n \"start\": \"npm run dev\",\n \"test\": \"karma start ./tests/karma.conf.js\",\n \"test:docs\": \"node scripts/docsLint.js\",\n \"test:firefox\": \"npm test -- --browsers Firefox\",\n \"test:chrome\": \"npm test -- --browsers Chrome\",\n \"test:nobrowser\": \"NO_BROWSER=true npm test\",\n \"test:node\": \"mocha --ui tdd tests/node\"\n },\n \"repository\": \"aframevr/aframe\",\n \"license\": \"MIT\",\n \"files\": [\n \"dist/*\",\n \"docs/**/*\",\n \"src/**/*\",\n \"vendor/**/*\"\n ],\n \"dependencies\": {\n \"animejs\": \"^2.2.0\",\n \"browserify-css\": \"^0.8.2\",\n \"debug\": \"ngokevin/debug#noTimestamp\",\n \"deep-assign\": \"^2.0.0\",\n \"document-register-element\": \"dmarcos/document-register-element#8ccc532b7f3744be954574caf3072a5fd260ca90\",\n \"envify\": \"^3.4.1\",\n \"load-bmfont\": \"^1.2.3\",\n \"object-assign\": \"^4.0.1\",\n \"present\": \"0.0.6\",\n \"promise-polyfill\": \"^3.1.0\",\n \"style-attr\": \"^1.0.2\",\n \"three\": \"0.95.0\",\n \"three-bmfont-text\": \"^2.1.0\",\n \"webvr-polyfill\": \"^0.10.5\"\n },\n \"devDependencies\": {\n \"browserify\": \"^13.1.0\",\n \"browserify-derequire\": \"^0.9.4\",\n \"browserify-istanbul\": \"^2.0.0\",\n \"budo\": \"^9.2.0\",\n \"chai\": \"^3.5.0\",\n \"chai-shallow-deep-equal\": \"^1.4.0\",\n \"chalk\": \"^1.1.3\",\n \"codecov\": \"^1.0.1\",\n \"cross-env\": \"^5.0.1\",\n \"exorcist\": \"^0.4.0\",\n \"ghpages\": \"0.0.8\",\n \"git-rev\": \"^0.2.1\",\n \"glob\": \"^7.1.1\",\n \"husky\": \"^0.11.7\",\n \"istanbul\": \"^0.4.5\",\n \"jsdom\": \"^9.11.0\",\n \"karma\": \"1.4.1\",\n \"karma-browserify\": \"^5.1.0\",\n \"karma-chai-shallow-deep-equal\": \"0.0.4\",\n \"karma-chrome-launcher\": \"^2.0.0\",\n \"karma-coverage\": \"^1.1.1\",\n \"karma-env-preprocessor\": \"^0.1.1\",\n \"karma-firefox-launcher\": \"^1.0.0\",\n \"karma-mocha\": \"^1.1.1\",\n \"karma-mocha-reporter\": \"^2.1.0\",\n \"karma-sinon-chai\": \"1.2.4\",\n \"lolex\": \"^1.5.1\",\n \"markserv\": \"github:sukima/markserv#feature/fix-broken-websoketio-link\",\n \"minifyify\": \"^7.3.3\",\n \"mocha\": \"^3.0.2\",\n \"mozilla-download\": \"^1.1.1\",\n \"replace-in-file\": \"^2.5.3\",\n \"semistandard\": \"^9.0.0\",\n \"shelljs\": \"^0.7.7\",\n \"shx\": \"^0.2.2\",\n \"sinon\": \"^1.17.5\",\n \"sinon-chai\": \"2.8.0\",\n \"snazzy\": \"^5.0.0\",\n \"too-wordy\": \"ngokevin/too-wordy\",\n \"uglifyjs\": \"^2.4.10\",\n \"write-good\": \"^0.9.1\"\n },\n \"link\": true,\n \"browserify\": {\n \"transform\": [\n \"browserify-css\",\n \"envify\"\n ]\n },\n \"semistandard\": {\n \"ignore\": [\n \"build/**\",\n \"dist/**\",\n \"examples/**/shaders/*.js\",\n \"**/vendor/**\"\n ]\n },\n \"keywords\": [\n \"3d\",\n \"aframe\",\n \"cardboard\",\n \"components\",\n \"oculus\",\n \"three\",\n \"three.js\",\n \"rift\",\n \"vive\",\n \"vr\",\n \"web-components\",\n \"webvr\"\n ],\n \"browserify-css\": {\n \"minify\": true\n },\n \"engines\": {\n \"node\": \">= 4.6.0\",\n \"npm\": \"^2.15.9\"\n }\n}\n", + "module.exports={\n \"name\": \"aframe\",\n \"version\": \"0.8.2\",\n \"description\": \"A web framework for building virtual reality experiences.\",\n \"homepage\": \"https://aframe.io/\",\n \"main\": \"dist/aframe-master.js\",\n \"scripts\": {\n \"browserify\": \"browserify src/index.js -s 'AFRAME' -p browserify-derequire\",\n \"build\": \"shx mkdir -p build/ && npm run browserify -- --debug -t [envify --INSPECTOR_VERSION dev] -o build/aframe.js\",\n \"codecov\": \"codecov\",\n \"dev\": \"npm run build && cross-env INSPECTOR_VERSION=dev node ./scripts/budo -t envify\",\n \"dist\": \"node scripts/updateVersionLog.js && npm run dist:min && npm run dist:max\",\n \"dist:max\": \"npm run browserify -s -- --debug | exorcist dist/aframe-master.js.map > dist/aframe-master.js\",\n \"dist:min\": \"npm run browserify -s -- --debug -p [minifyify --map aframe-master.min.js.map --output dist/aframe-master.min.js.map] -o dist/aframe-master.min.js\",\n \"docs\": \"markserv --dir docs --port 9001\",\n \"preghpages\": \"node ./scripts/preghpages.js\",\n \"ghpages\": \"ghpages -p gh-pages/\",\n \"lint\": \"semistandard -v | snazzy\",\n \"lint:fix\": \"semistandard --fix\",\n \"precommit\": \"npm run lint\",\n \"prepush\": \"node scripts/testOnlyCheck.js\",\n \"prerelease\": \"node scripts/release.js 0.7.1 0.8.0\",\n \"start\": \"npm run dev\",\n \"test\": \"karma start ./tests/karma.conf.js\",\n \"test:docs\": \"node scripts/docsLint.js\",\n \"test:firefox\": \"npm test -- --browsers Firefox\",\n \"test:chrome\": \"npm test -- --browsers Chrome\",\n \"test:nobrowser\": \"NO_BROWSER=true npm test\",\n \"test:node\": \"mocha --ui tdd tests/node\"\n },\n \"repository\": \"aframevr/aframe\",\n \"license\": \"MIT\",\n \"files\": [\n \"dist/*\",\n \"docs/**/*\",\n \"src/**/*\",\n \"vendor/**/*\"\n ],\n \"dependencies\": {\n \"animejs\": \"^2.2.0\",\n \"browserify-css\": \"^0.8.4\",\n \"debug\": \"ngokevin/debug#noTimestamp\",\n \"deep-assign\": \"^2.0.0\",\n \"document-register-element\": \"dmarcos/document-register-element#8ccc532b7f3744be954574caf3072a5fd260ca90\",\n \"envify\": \"^3.4.1\",\n \"load-bmfont\": \"^1.2.3\",\n \"object-assign\": \"^4.0.1\",\n \"present\": \"0.0.6\",\n \"promise-polyfill\": \"^3.1.0\",\n \"style-attr\": \"^1.0.2\",\n \"three\": \"0.95.0\",\n \"three-bmfont-text\": \"^2.1.0\",\n \"webvr-polyfill\": \"^0.10.5\"\n },\n \"devDependencies\": {\n \"browserify\": \"^13.1.0\",\n \"browserify-derequire\": \"^0.9.4\",\n \"browserify-istanbul\": \"^2.0.0\",\n \"budo\": \"^9.2.0\",\n \"chai\": \"^3.5.0\",\n \"chai-shallow-deep-equal\": \"^1.4.0\",\n \"chalk\": \"^1.1.3\",\n \"codecov\": \"^1.0.1\",\n \"cross-env\": \"^5.0.1\",\n \"exorcist\": \"^0.4.0\",\n \"ghpages\": \"0.0.8\",\n \"git-rev\": \"^0.2.1\",\n \"glob\": \"^7.1.1\",\n \"husky\": \"^0.11.7\",\n \"istanbul\": \"^0.4.5\",\n \"jsdom\": \"^9.11.0\",\n \"karma\": \"1.4.1\",\n \"karma-browserify\": \"^5.1.0\",\n \"karma-chai-shallow-deep-equal\": \"0.0.4\",\n \"karma-chrome-launcher\": \"^2.0.0\",\n \"karma-coverage\": \"^1.1.1\",\n \"karma-env-preprocessor\": \"^0.1.1\",\n \"karma-firefox-launcher\": \"^1.0.0\",\n \"karma-mocha\": \"^1.1.1\",\n \"karma-mocha-reporter\": \"^2.1.0\",\n \"karma-sinon-chai\": \"1.2.4\",\n \"lolex\": \"^1.5.1\",\n \"markserv\": \"github:sukima/markserv#feature/fix-broken-websoketio-link\",\n \"minifyify\": \"^7.3.3\",\n \"mocha\": \"^3.0.2\",\n \"mozilla-download\": \"^1.1.1\",\n \"replace-in-file\": \"^2.5.3\",\n \"semistandard\": \"^9.0.0\",\n \"shelljs\": \"^0.7.7\",\n \"shx\": \"^0.2.2\",\n \"sinon\": \"^1.17.5\",\n \"sinon-chai\": \"2.8.0\",\n \"snazzy\": \"^5.0.0\",\n \"too-wordy\": \"ngokevin/too-wordy\",\n \"uglifyjs\": \"^2.4.10\",\n \"write-good\": \"^0.9.1\"\n },\n \"link\": true,\n \"browserify\": {\n \"transform\": [\n \"browserify-css\",\n \"envify\"\n ]\n },\n \"semistandard\": {\n \"ignore\": [\n \"build/**\",\n \"dist/**\",\n \"examples/**/shaders/*.js\",\n \"**/vendor/**\"\n ]\n },\n \"keywords\": [\n \"3d\",\n \"aframe\",\n \"cardboard\",\n \"components\",\n \"oculus\",\n \"three\",\n \"three.js\",\n \"rift\",\n \"vive\",\n \"vr\",\n \"web-components\",\n \"webvr\"\n ],\n \"browserify-css\": {\n \"minify\": true\n },\n \"engines\": {\n \"node\": \">= 4.6.0\",\n \"npm\": \"^2.15.9\"\n }\n}\n", "var anime = require('animejs');\nvar components = require('../core/component').components;\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils');\n\nvar colorHelperFrom = new THREE.Color();\nvar colorHelperTo = new THREE.Color();\n\nvar getComponentProperty = utils.entity.getComponentProperty;\nvar setComponentProperty = utils.entity.setComponentProperty;\nvar splitCache = {};\n\nvar TYPE_COLOR = 'color';\nvar PROP_POSITION = 'position';\nvar PROP_ROTATION = 'rotation';\nvar PROP_SCALE = 'scale';\nvar STRING_COMPONENTS = 'components';\nvar STRING_OBJECT3D = 'object3D';\n\n/**\n * Animation component for A-Frame using anime.js.\n *\n * The component manually controls the tick by setting `autoplay: false` on anime.js and\n * manually * calling `animation.tick()` in the tick handler. To pause or resume, we toggle a\n * boolean * flag * `isAnimationPlaying`.\n *\n * anime.js animation config for tweenining Javascript objects and values works as:\n *\n * config = {\n * targets: {foo: 0.0, bar: '#000'},\n * foo: 1.0,\n * bar: '#FFF'\n * }\n *\n * The above will tween each property in `targets`. The `to` values are set in the root of\n * the config.\n *\n * @member {object} animation - anime.js instance.\n * @member {boolean} animationIsPlaying - Control if animation is playing.\n */\nmodule.exports.Component = registerComponent('animation', {\n schema: {\n autoplay: {default: true},\n delay: {default: 0},\n dir: {default: ''},\n dur: {default: 1000},\n easing: {default: 'easeInQuad'},\n elasticity: {default: 400},\n enabled: {default: true},\n from: {default: ''},\n loop: {\n default: 0,\n parse: function (value) {\n // Boolean or integer.\n if (value === true || value === 'true') { return true; }\n if (value === false || value === 'false') { return false; }\n return parseInt(value, 10);\n }\n },\n property: {default: ''},\n startEvents: {type: 'array'},\n pauseEvents: {type: 'array'},\n resumeEvents: {type: 'array'},\n round: {default: false},\n to: {default: ''},\n type: {default: ''},\n isRawProperty: {default: false}\n },\n\n multiple: true,\n\n init: function () {\n var self = this;\n\n this.eventDetail = {name: this.attrName};\n this.time = 0;\n\n this.animation = null;\n this.animationIsPlaying = false;\n this.onStartEvent = this.onStartEvent.bind(this);\n this.beginAnimation = this.beginAnimation.bind(this);\n this.pauseAnimation = this.pauseAnimation.bind(this);\n this.resumeAnimation = this.resumeAnimation.bind(this);\n\n this.fromColor = {};\n this.toColor = {};\n this.targets = {};\n this.targetsArray = [];\n\n this.updateConfigForDefault = this.updateConfigForDefault.bind(this);\n this.updateConfigForRawColor = this.updateConfigForRawColor.bind(this);\n\n this.config = {\n complete: function () {\n self.animationIsPlaying = false;\n self.el.emit('animationcomplete', self.eventDetail, false);\n if (self.id) {\n self.el.emit('animationcomplete__' + self.id, self.eventDetail, false);\n }\n }\n };\n },\n\n update: function (oldData) {\n var config = this.config;\n var data = this.data;\n\n this.animationIsPlaying = false;\n\n if (oldData.enabled && !this.data.enabled) { return; }\n\n if (!data.property) { return; }\n\n // Base config.\n config.autoplay = false;\n config.direction = data.dir;\n config.duration = data.dur;\n config.easing = data.easing;\n config.elasticity = data.elasticity;\n config.loop = data.loop;\n config.round = data.round;\n\n // Start new animation.\n this.createAndStartAnimation();\n },\n\n tick: function (t, dt) {\n if (!this.animationIsPlaying) { return; }\n this.time += dt;\n this.animation.tick(this.time);\n },\n\n remove: function () {\n this.pauseAnimation();\n this.removeEventListeners();\n },\n\n pause: function () {\n this.paused = true;\n this.pausedWasPlaying = this.animationIsPlaying;\n this.pauseAnimation();\n this.removeEventListeners();\n },\n\n /**\n * `play` handler only for resuming scene.\n */\n play: function () {\n if (!this.paused) { return; }\n this.paused = false;\n this.addEventListeners();\n if (this.pausedWasPlaying) {\n this.resumeAnimation();\n this.pausedWasPlaying = false;\n }\n },\n\n /**\n * Start animation from scratch.\n */\n createAndStartAnimation: function () {\n var data = this.data;\n\n this.updateConfig();\n this.animationIsPlaying = false;\n this.animation = anime(this.config);\n\n this.removeEventListeners();\n this.addEventListeners();\n\n // Wait for start events for animation.\n if (!data.autoplay || data.startEvents && data.startEvents.length) { return; }\n\n // Delay animation.\n if (data.delay) {\n setTimeout(this.beginAnimation, data.delay);\n return;\n }\n\n // Play animation.\n this.beginAnimation();\n },\n\n /**\n * This is before animation start (including from startEvents).\n * Set to initial state (config.from, time = 0, seekTime = 0).\n */\n beginAnimation: function () {\n this.updateConfig();\n this.time = 0;\n this.animationIsPlaying = true;\n this.stopRelatedAnimations();\n this.el.emit('animationbegin', this.eventDetail);\n },\n\n pauseAnimation: function () {\n this.animationIsPlaying = false;\n },\n\n resumeAnimation: function () {\n this.animationIsPlaying = true;\n },\n\n /**\n * startEvents callback.\n */\n onStartEvent: function () {\n if (!this.data.enabled) { return; }\n\n this.updateConfig();\n if (this.animation) {\n this.animation.pause();\n }\n this.animation = anime(this.config);\n\n // Include the delay before each start event.\n if (this.data.delay) {\n setTimeout(this.beginAnimation, this.data.delay);\n return;\n }\n this.beginAnimation();\n },\n\n /**\n * rawProperty: true and type: color;\n */\n updateConfigForRawColor: function () {\n var config = this.config;\n var data = this.data;\n var el = this.el;\n var from;\n var key;\n var to;\n\n if (this.waitComponentInitRawProperty(this.updateConfigForRawColor)) {\n return;\n }\n\n from = data.from === '' ? getRawProperty(el, data.property) : data.from;\n to = data.to;\n\n // Use r/g/b vector for color type.\n this.setColorConfig(from, to);\n from = this.fromColor;\n to = this.toColor;\n\n this.targetsArray.length = 0;\n this.targetsArray.push(from);\n config.targets = this.targetsArray;\n for (key in to) { config[key] = to[key]; }\n\n config.update = (function () {\n var lastValue = {};\n return function (anim) {\n var value;\n value = anim.animatables[0].target;\n // For animation timeline.\n if (value.r === lastValue.r &&\n value.g === lastValue.g &&\n value.b === lastValue.b) { return; }\n\n setRawProperty(el, data.property, value, data.type);\n };\n })();\n },\n\n /**\n * Stuff property into generic `property` key.\n */\n updateConfigForDefault: function () {\n var config = this.config;\n var data = this.data;\n var el = this.el;\n var from;\n var isBoolean;\n var isNumber;\n var to;\n\n if (this.waitComponentInitRawProperty(this.updateConfigForDefault)) {\n return;\n }\n\n if (data.from === '') {\n // Infer from.\n from = isRawProperty(data)\n ? getRawProperty(el, data.property)\n : getComponentProperty(el, data.property);\n } else {\n // Explicit from.\n from = data.from;\n }\n\n to = data.to;\n\n isNumber = !isNaN(from || to);\n if (isNumber) {\n from = parseFloat(from);\n to = parseFloat(to);\n } else {\n from = from ? from.toString() : from;\n to = to ? to.toString() : to;\n }\n\n // Convert booleans to integer to allow boolean flipping.\n isBoolean = data.to === 'true' || data.to === 'false' ||\n data.to === true || data.to === false;\n if (isBoolean) {\n from = data.from === 'true' || data.from === true ? 1 : 0;\n to = data.to === 'true' || data.to === true ? 1 : 0;\n }\n\n this.targets.aframeProperty = from;\n config.targets = this.targets;\n config.aframeProperty = to;\n config.update = (function () {\n var lastValue;\n\n return function (anim) {\n var value;\n value = anim.animatables[0].target.aframeProperty;\n\n // Need to do a last value check for animation timeline since all the tweening\n // begins simultaenously even if the value has not changed. Also better for perf\n // anyways.\n if (value === lastValue) { return; }\n lastValue = value;\n\n if (isBoolean) { value = value >= 1; }\n\n if (isRawProperty(data)) {\n setRawProperty(el, data.property, value, data.type);\n } else {\n setComponentProperty(el, data.property, value);\n }\n };\n })();\n },\n\n /**\n * Extend x/y/z/w onto the config.\n * Update vector by modifying object3D.\n */\n updateConfigForVector: function () {\n var config = this.config;\n var data = this.data;\n var el = this.el;\n var key;\n var from;\n var to;\n\n // Parse coordinates.\n from = data.from !== ''\n ? utils.coordinates.parse(data.from) // If data.from defined, use that.\n : getComponentProperty(el, data.property); // If data.from not defined, get on the fly.\n to = utils.coordinates.parse(data.to);\n\n if (data.property === PROP_ROTATION) {\n toRadians(from);\n toRadians(to);\n }\n\n // Set to and from.\n this.targetsArray.length = 0;\n this.targetsArray.push(from);\n config.targets = this.targetsArray;\n for (key in to) { config[key] = to[key]; }\n\n // If animating object3D transformation, run more optimized updater.\n if (data.property === PROP_POSITION || data.property === PROP_ROTATION ||\n data.property === PROP_SCALE) {\n config.update = (function () {\n var lastValue = {};\n return function (anim) {\n var value = anim.animatables[0].target;\n\n if (data.property === PROP_SCALE) {\n value.x = Math.max(0.0001, value.x);\n value.y = Math.max(0.0001, value.y);\n value.z = Math.max(0.0001, value.z);\n }\n\n // For animation timeline.\n if (value.x === lastValue.x &&\n value.y === lastValue.y &&\n value.z === lastValue.z) { return; }\n\n lastValue.x = value.x;\n lastValue.y = value.y;\n lastValue.z = value.z;\n\n el.object3D[data.property].set(value.x, value.y, value.z);\n };\n })();\n return;\n }\n\n // Animating some vector.\n config.update = (function () {\n var lastValue = {};\n return function (anim) {\n var value = anim.animations[0].target;\n\n // Animate rotation through radians.\n // For animation timeline.\n if (value.x === lastValue.x &&\n value.y === lastValue.y &&\n value.z === lastValue.z) { return; }\n lastValue.x = value.x;\n lastValue.y = value.y;\n lastValue.z = value.z;\n setComponentProperty(el, data.property, value);\n };\n })();\n },\n\n /**\n * Update the config before each run.\n */\n updateConfig: function () {\n var propType;\n\n // Route config type.\n propType = getPropertyType(this.el, this.data.property);\n if (isRawProperty(this.data) && this.data.type === TYPE_COLOR) {\n this.updateConfigForRawColor();\n } else if (propType === 'vec2' || propType === 'vec3' || propType === 'vec4') {\n this.updateConfigForVector();\n } else {\n this.updateConfigForDefault();\n }\n },\n\n /**\n * Wait for component to initialize.\n */\n waitComponentInitRawProperty: function (cb) {\n var componentName;\n var data = this.data;\n var el = this.el;\n var self = this;\n\n if (data.from !== '') { return false; }\n\n if (!data.property.startsWith(STRING_COMPONENTS)) { return false; }\n\n componentName = splitDot(data.property)[1];\n if (el.components[componentName]) { return false; }\n\n el.addEventListener('componentinitialized', function wait (evt) {\n if (evt.detail.name !== componentName) { return; }\n cb();\n // Since the config was created async, create the animation now since we missed it\n // earlier.\n self.animation = anime(self.config);\n el.removeEventListener('componentinitialized', wait);\n });\n return true;\n },\n\n /**\n * Make sure two animations on the same property don't fight each other.\n * e.g., animation__mouseenter=\"property: material.opacity\"\n * animation__mouseleave=\"property: material.opacity\"\n */\n stopRelatedAnimations: function () {\n var component;\n var componentName;\n for (componentName in this.el.components) {\n component = this.el.components[componentName];\n if (componentName === this.attrName) { continue; }\n if (component.name !== 'animation') { continue; }\n if (!component.animationIsPlaying) { continue; }\n if (component.data.property !== this.data.property) { continue; }\n component.animationIsPlaying = false;\n }\n },\n\n addEventListeners: function () {\n var data = this.data;\n var el = this.el;\n addEventListeners(el, data.startEvents, this.onStartEvent);\n addEventListeners(el, data.pauseEvents, this.pauseAnimation);\n addEventListeners(el, data.resumeEvents, this.resumeAnimation);\n },\n\n removeEventListeners: function () {\n var data = this.data;\n var el = this.el;\n removeEventListeners(el, data.startEvents, this.onStartEvent);\n removeEventListeners(el, data.pauseEvents, this.pauseAnimation);\n removeEventListeners(el, data.resumeEvents, this.resumeAnimation);\n },\n\n setColorConfig: function (from, to) {\n colorHelperFrom.set(from);\n colorHelperTo.set(to);\n from = this.fromColor;\n to = this.toColor;\n from.r = colorHelperFrom.r;\n from.g = colorHelperFrom.g;\n from.b = colorHelperFrom.b;\n to.r = colorHelperTo.r;\n to.g = colorHelperTo.g;\n to.b = colorHelperTo.b;\n }\n});\n\n/**\n * Given property name, check schema to see what type we are animating.\n * We just care whether the property is a vector.\n */\nfunction getPropertyType (el, property) {\n var component;\n var componentName;\n var split;\n var propertyName;\n\n split = property.split('.');\n componentName = split[0];\n propertyName = split[1];\n component = el.components[componentName] || components[componentName];\n\n // Primitives.\n if (!component) { return null; }\n\n // Dynamic schema. We only care about vectors anyways.\n if (propertyName && !component.schema[propertyName]) { return null; }\n\n // Multi-prop.\n if (propertyName) { return component.schema[propertyName].type; }\n\n // Single-prop.\n return component.schema.type;\n}\n\n/**\n * Convert object to radians.\n */\nfunction toRadians (obj) {\n obj.x = THREE.Math.degToRad(obj.x);\n obj.y = THREE.Math.degToRad(obj.y);\n obj.z = THREE.Math.degToRad(obj.z);\n}\n\nfunction addEventListeners (el, eventNames, handler) {\n var i;\n for (i = 0; i < eventNames.length; i++) {\n el.addEventListener(eventNames[i], handler);\n }\n}\n\nfunction removeEventListeners (el, eventNames, handler) {\n var i;\n for (i = 0; i < eventNames.length; i++) {\n el.removeEventListener(eventNames[i], handler);\n }\n}\n\nfunction getRawProperty (el, path) {\n var i;\n var split;\n var value;\n split = splitDot(path);\n value = el;\n for (i = 0; i < split.length; i++) {\n value = value[split[i]];\n }\n return value;\n}\n\nfunction setRawProperty (el, path, value, type) {\n var i;\n var split;\n var propertyName;\n var targetValue;\n\n if (path.startsWith('object3D.rotation')) {\n value = THREE.Math.degToRad(value);\n }\n\n // Walk.\n split = splitDot(path);\n targetValue = el;\n for (i = 0; i < split.length - 1; i++) { targetValue = targetValue[split[i]]; }\n propertyName = split[split.length - 1];\n\n // Raw color.\n if (type === TYPE_COLOR) {\n if ('r' in targetValue[propertyName]) {\n targetValue[propertyName].r = value.r;\n targetValue[propertyName].g = value.g;\n targetValue[propertyName].b = value.b;\n } else {\n targetValue[propertyName].x = value.r;\n targetValue[propertyName].y = value.g;\n targetValue[propertyName].z = value.b;\n }\n return;\n }\n\n targetValue[propertyName] = value;\n}\n\nfunction splitDot (path) {\n if (path in splitCache) { return splitCache[path]; }\n splitCache[path] = path.split('.');\n return splitCache[path];\n}\n\nfunction isRawProperty (data) {\n return data.isRawProperty || data.property.startsWith(STRING_COMPONENTS) ||\n data.property.startsWith(STRING_OBJECT3D);\n}\n", "var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\n/**\n * Camera component.\n * Pairs along with camera system to handle tracking the active camera.\n */\nmodule.exports.Component = registerComponent('camera', {\n schema: {\n active: {default: true},\n far: {default: 10000},\n fov: {default: 80, min: 0},\n near: {default: 0.005, min: 0},\n spectator: {default: false},\n zoom: {default: 1, min: 0}\n },\n\n /**\n * Initialize three.js camera and add it to the entity.\n * Add reference from scene to this entity as the camera.\n */\n init: function () {\n var camera;\n var el = this.el;\n\n // Create camera.\n camera = this.camera = new THREE.PerspectiveCamera();\n el.setObject3D('camera', camera);\n },\n\n /**\n * Update three.js camera.\n */\n update: function (oldData) {\n var data = this.data;\n var camera = this.camera;\n\n // Update properties.\n camera.aspect = data.aspect || (window.innerWidth / window.innerHeight);\n camera.far = data.far;\n camera.fov = data.fov;\n camera.near = data.near;\n camera.zoom = data.zoom;\n camera.updateProjectionMatrix();\n\n this.updateActiveCamera(oldData);\n this.updateSpectatorCamera(oldData);\n },\n\n updateActiveCamera: function (oldData) {\n var data = this.data;\n var el = this.el;\n var system = this.system;\n // Active property did not change.\n if (oldData && oldData.active === data.active || data.spectator) { return; }\n\n // If `active` property changes, or first update, handle active camera with system.\n if (data.active && system.activeCameraEl !== el) {\n // Camera enabled. Set camera to this camera.\n system.setActiveCamera(el);\n } else if (!data.active && system.activeCameraEl === el) {\n // Camera disabled. Set camera to another camera.\n system.disableActiveCamera();\n }\n },\n\n updateSpectatorCamera: function (oldData) {\n var data = this.data;\n var el = this.el;\n var system = this.system;\n // spectator property did not change.\n if (oldData && oldData.spectator === data.spectator) { return; }\n\n // If `spectator` property changes, or first update, handle spectator camera with system.\n if (data.spectator && system.spectatorCameraEl !== el) {\n // Camera enabled. Set camera to this camera.\n system.setSpectatorCamera(el);\n } else if (!data.spectator && system.spectatorCameraEl === el) {\n // Camera disabled. Set camera to another camera.\n system.disableSpectatorCamera();\n }\n },\n\n /**\n * Remove camera on remove (callback).\n */\n remove: function () {\n this.el.removeObject3D('camera');\n }\n});\n", "var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\nmodule.exports.Component = registerComponent('collada-model', {\n schema: {type: 'asset'},\n\n init: function () {\n this.model = null;\n this.loader = new THREE.ColladaLoader();\n },\n\n update: function () {\n var self = this;\n var el = this.el;\n var src = this.data;\n\n if (!src) { return; }\n\n this.remove();\n\n this.loader.load(src, function (colladaModel) {\n self.model = colladaModel.scene;\n el.setObject3D('mesh', self.model);\n el.emit('model-loaded', {format: 'collada', model: self.model});\n });\n },\n\n remove: function () {\n if (!this.model) { return; }\n this.el.removeObject3D('mesh');\n }\n});\n", @@ -268,17 +271,17 @@ "var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\nvar warn = utils.debug('components:gltf-model:warn');\n\n/**\n * glTF model loader.\n */\nmodule.exports.Component = registerComponent('gltf-model', {\n schema: {type: 'model'},\n\n init: function () {\n var dracoLoader = this.system.getDRACOLoader();\n this.model = null;\n this.loader = new THREE.GLTFLoader();\n if (dracoLoader) {\n this.loader.setDRACOLoader(dracoLoader);\n }\n },\n\n update: function () {\n var self = this;\n var el = this.el;\n var src = this.data;\n\n if (!src) { return; }\n\n this.remove();\n\n this.loader.load(src, function gltfLoaded (gltfModel) {\n self.model = gltfModel.scene || gltfModel.scenes[0];\n self.model.animations = gltfModel.animations;\n el.setObject3D('mesh', self.model);\n el.emit('model-loaded', {format: 'gltf', model: self.model});\n }, undefined /* onProgress */, function gltfFailed (error) {\n var message = (error && error.message) ? error.message : 'Failed to load glTF model';\n warn(message);\n el.emit('model-error', {format: 'gltf', src: src});\n });\n },\n\n remove: function () {\n if (!this.model) { return; }\n this.el.removeObject3D('mesh');\n }\n});\n", "/* global THREE */\nvar registerComponent = require('../core/component').registerComponent;\n\n// Found at https://github.com/aframevr/assets.\nvar MODEL_URLS = {\n left: 'https://cdn.aframe.io/controllers/oculus-hands/v2/leftHand.json',\n right: 'https://cdn.aframe.io/controllers/oculus-hands/v2/rightHand.json'\n};\n\n// Poses.\nvar ANIMATIONS = {\n open: 'Open',\n // point: grip active, trackpad surface active, trigger inactive.\n point: 'Point',\n // pointThumb: grip active, trigger inactive, trackpad surface inactive.\n pointThumb: 'Point + Thumb',\n // fist: grip active, trigger active, trackpad surface active.\n fist: 'Fist',\n // hold: trigger active, grip inactive.\n hold: 'Hold',\n // thumbUp: grip active, trigger active, trackpad surface inactive.\n thumbUp: 'Thumb Up'\n};\n\n// Map animation to public events for the API.\nvar EVENTS = {};\nEVENTS[ANIMATIONS.fist] = 'grip';\nEVENTS[ANIMATIONS.thumbUp] = 'pistol';\nEVENTS[ANIMATIONS.point] = 'pointing';\nEVENTS[ANIMATIONS.thumb] = 'thumb';\n\n/**\n * Hand controls component that abstracts 6DoF controls:\n * oculus-touch-controls, vive-controls, windows-motion-controls.\n *\n * Originally meant to be a sample implementation of applications-specific controls that\n * abstracts multiple types of controllers.\n *\n * Auto-detect appropriate controller.\n * Handle common events coming from the detected vendor-specific controls.\n * Translate button events to semantic hand-related event names:\n * (gripclose, gripopen, thumbup, thumbdown, pointup, pointdown)\n * Load hand model with gestures that are applied based on the button pressed.\n *\n * @property {string} Hand mapping (`left`, `right`).\n */\nmodule.exports.Component = registerComponent('hand-controls', {\n schema: {default: 'left'},\n\n init: function () {\n var self = this;\n var el = this.el;\n // Current pose.\n this.gesture = ANIMATIONS.open;\n // Active buttons populated by events provided by the attached controls.\n this.pressedButtons = {};\n this.touchedButtons = {};\n this.loader = new THREE.ObjectLoader();\n this.loader.setCrossOrigin('anonymous');\n\n this.onGripDown = function () { self.handleButton('grip', 'down'); };\n this.onGripUp = function () { self.handleButton('grip', 'up'); };\n this.onTrackpadDown = function () { self.handleButton('trackpad', 'down'); };\n this.onTrackpadUp = function () { self.handleButton('trackpad', 'up'); };\n this.onTrackpadTouchStart = function () { self.handleButton('trackpad', 'touchstart'); };\n this.onTrackpadTouchEnd = function () { self.handleButton('trackpad', 'touchend'); };\n this.onTriggerDown = function () { self.handleButton('trigger', 'down'); };\n this.onTriggerUp = function () { self.handleButton('trigger', 'up'); };\n this.onTriggerTouchStart = function () { self.handleButton('trigger', 'touchstart'); };\n this.onTriggerTouchEnd = function () { self.handleButton('trigger', 'touchend'); };\n this.onGripTouchStart = function () { self.handleButton('grip', 'touchstart'); };\n this.onGripTouchEnd = function () { self.handleButton('grip', 'touchend'); };\n this.onThumbstickDown = function () { self.handleButton('thumbstick', 'down'); };\n this.onThumbstickUp = function () { self.handleButton('thumbstick', 'up'); };\n this.onAorXTouchStart = function () { self.handleButton('AorX', 'touchstart'); };\n this.onAorXTouchEnd = function () { self.handleButton('AorX', 'touchend'); };\n this.onBorYTouchStart = function () { self.handleButton('BorY', 'touchstart'); };\n this.onBorYTouchEnd = function () { self.handleButton('BorY', 'touchend'); };\n this.onSurfaceTouchStart = function () { self.handleButton('surface', 'touchstart'); };\n this.onSurfaceTouchEnd = function () { self.handleButton('surface', 'touchend'); };\n this.onControllerConnected = function () { self.setModelVisibility(true); };\n this.onControllerDisconnected = function () { self.setModelVisibility(false); };\n\n el.addEventListener('controllerconnected', this.onControllerConnected);\n el.addEventListener('controllerdisconnected', this.onControllerDisconnected);\n },\n\n play: function () {\n this.addEventListeners();\n },\n\n pause: function () {\n this.removeEventListeners();\n },\n\n tick: function (time, delta) {\n var mesh = this.el.getObject3D('mesh');\n\n if (!mesh || !mesh.mixer) { return; }\n\n mesh.mixer.update(delta / 1000);\n },\n\n addEventListeners: function () {\n var el = this.el;\n el.addEventListener('gripdown', this.onGripDown);\n el.addEventListener('gripup', this.onGripUp);\n el.addEventListener('trackpaddown', this.onTrackpadDown);\n el.addEventListener('trackpadup', this.onTrackpadUp);\n el.addEventListener('trackpadtouchstart', this.onTrackpadTouchStart);\n el.addEventListener('trackpadtouchend', this.onTrackpadTouchEnd);\n el.addEventListener('triggerdown', this.onTriggerDown);\n el.addEventListener('triggerup', this.onTriggerUp);\n el.addEventListener('triggertouchstart', this.onTriggerTouchStart);\n el.addEventListener('triggertouchend', this.onTriggerTouchEnd);\n el.addEventListener('griptouchstart', this.onGripTouchStart);\n el.addEventListener('griptouchend', this.onGripTouchEnd);\n el.addEventListener('thumbstickdown', this.onThumbstickDown);\n el.addEventListener('thumbstickup', this.onThumbstickUp);\n el.addEventListener('abuttontouchstart', this.onAorXTouchStart);\n el.addEventListener('abuttontouchend', this.onAorXTouchEnd);\n el.addEventListener('bbuttontouchstart', this.onBorYTouchStart);\n el.addEventListener('bbuttontouchend', this.onBorYTouchEnd);\n el.addEventListener('xbuttontouchstart', this.onAorXTouchStart);\n el.addEventListener('xbuttontouchend', this.onAorXTouchEnd);\n el.addEventListener('ybuttontouchstart', this.onBorYTouchStart);\n el.addEventListener('ybuttontouchend', this.onBorYTouchEnd);\n el.addEventListener('surfacetouchstart', this.onSurfaceTouchStart);\n el.addEventListener('surfacetouchend', this.onSurfaceTouchEnd);\n },\n\n removeEventListeners: function () {\n var el = this.el;\n el.removeEventListener('gripdown', this.onGripDown);\n el.removeEventListener('gripup', this.onGripUp);\n el.removeEventListener('trackpaddown', this.onTrackpadDown);\n el.removeEventListener('trackpadup', this.onTrackpadUp);\n el.removeEventListener('trackpadtouchstart', this.onTrackpadTouchStart);\n el.removeEventListener('trackpadtouchend', this.onTrackpadTouchEnd);\n el.removeEventListener('triggerdown', this.onTriggerDown);\n el.removeEventListener('triggerup', this.onTriggerUp);\n el.removeEventListener('triggertouchstart', this.onTriggerTouchStart);\n el.removeEventListener('triggertouchend', this.onTriggerTouchEnd);\n el.removeEventListener('griptouchstart', this.onGripTouchStart);\n el.removeEventListener('griptouchend', this.onGripTouchEnd);\n el.removeEventListener('thumbstickdown', this.onThumbstickDown);\n el.removeEventListener('thumbstickup', this.onThumbstickUp);\n el.removeEventListener('abuttontouchstart', this.onAorXTouchStart);\n el.removeEventListener('abuttontouchend', this.onAorXTouchEnd);\n el.removeEventListener('bbuttontouchstart', this.onBorYTouchStart);\n el.removeEventListener('bbuttontouchend', this.onBorYTouchEnd);\n el.removeEventListener('xbuttontouchstart', this.onAorXTouchStart);\n el.removeEventListener('xbuttontouchend', this.onAorXTouchEnd);\n el.removeEventListener('ybuttontouchstart', this.onBorYTouchStart);\n el.removeEventListener('ybuttontouchend', this.onBorYTouchEnd);\n el.removeEventListener('surfacetouchstart', this.onSurfaceTouchStart);\n el.removeEventListener('surfacetouchend', this.onSurfaceTouchEnd);\n },\n\n /**\n * Update handler. More like the `init` handler since the only property is the hand, and\n * that won't be changing much.\n */\n update: function (previousHand) {\n var controlConfiguration;\n var el = this.el;\n var hand = this.data;\n\n // Get common configuration to abstract different vendor controls.\n controlConfiguration = {\n hand: hand,\n model: false,\n orientationOffset: {x: 0, y: 0, z: hand === 'left' ? 90 : -90}\n };\n\n // Set model.\n if (hand !== previousHand) {\n this.loader.load(MODEL_URLS[hand], function (scene) {\n var mesh = scene.getObjectByName('Hand');\n mesh.material.skinning = true;\n mesh.mixer = new THREE.AnimationMixer(mesh);\n el.setObject3D('mesh', mesh);\n mesh.position.set(0, 0, 0);\n mesh.rotation.set(0, 0, 0);\n // hidden by default\n mesh.visible = false;\n el.setAttribute('vive-controls', controlConfiguration);\n el.setAttribute('oculus-touch-controls', controlConfiguration);\n el.setAttribute('windows-motion-controls', controlConfiguration);\n });\n }\n },\n\n remove: function () {\n this.el.removeObject3D('mesh');\n },\n\n /**\n * Play model animation, based on which button was pressed and which kind of event.\n *\n * 1. Process buttons.\n * 2. Determine gesture (this.determineGesture()).\n * 3. Animation gesture (this.animationGesture()).\n * 4. Emit gesture events (this.emitGestureEvents()).\n *\n * @param {string} button - Name of the button.\n * @param {string} evt - Type of event for the button (i.e., down/up/touchstart/touchend).\n */\n handleButton: function (button, evt) {\n var lastGesture;\n var isPressed = evt === 'down';\n var isTouched = evt === 'touchstart';\n\n // Update objects.\n if (evt.indexOf('touch') === 0) {\n // Update touch object.\n if (isTouched === this.touchedButtons[button]) { return; }\n this.touchedButtons[button] = isTouched;\n } else {\n // Update button object.\n if (isPressed === this.pressedButtons[button]) { return; }\n this.pressedButtons[button] = isPressed;\n }\n\n // Determine the gesture.\n lastGesture = this.gesture;\n this.gesture = this.determineGesture();\n\n // Same gesture.\n if (this.gesture === lastGesture) { return; }\n\n // Animate gesture.\n this.animateGesture(this.gesture, lastGesture);\n\n // Emit events.\n this.emitGestureEvents(this.gesture, lastGesture);\n },\n\n /**\n * Determine which pose hand should be in considering active and touched buttons.\n */\n determineGesture: function () {\n var gesture;\n var isGripActive = this.pressedButtons['grip'];\n var isSurfaceActive = this.pressedButtons['surface'] || this.touchedButtons['surface'];\n var isTrackpadActive = this.pressedButtons['trackpad'] || this.touchedButtons['trackpad'];\n var isTriggerActive = this.pressedButtons['trigger'] || this.touchedButtons['trigger'];\n var isABXYActive = this.touchedButtons['AorX'] || this.touchedButtons['BorY'];\n var isVive = isViveController(this.el.components['tracked-controls']);\n\n // Works well with Oculus Touch and Windows Motion Controls, but Vive needs tweaks.\n if (isGripActive) {\n if (isVive) {\n gesture = ANIMATIONS.fist;\n } else\n if (isSurfaceActive || isABXYActive || isTrackpadActive) {\n gesture = isTriggerActive ? ANIMATIONS.fist : ANIMATIONS.point;\n } else {\n gesture = isTriggerActive ? ANIMATIONS.thumbUp : ANIMATIONS.pointThumb;\n }\n } else {\n if (isTriggerActive) {\n gesture = !isVive ? ANIMATIONS.hold : ANIMATIONS.fist;\n } else if (isVive && isTrackpadActive) {\n gesture = ANIMATIONS.point;\n }\n }\n\n return gesture;\n },\n\n /**\n * Play gesture animation.\n *\n * @param {string} gesture - Which pose to animate to. If absent, then animate to open.\n * @param {string} lastGesture - Previous gesture, to reverse back to open if needed.\n */\n animateGesture: function (gesture, lastGesture) {\n if (gesture) {\n this.playAnimation(gesture || ANIMATIONS.open, lastGesture, false);\n return;\n }\n // If no gesture, then reverse the current gesture back to open pose.\n this.playAnimation(lastGesture, lastGesture, true);\n },\n\n /**\n * Emit `hand-controls`-specific events.\n */\n emitGestureEvents: function (gesture, lastGesture) {\n var el = this.el;\n var eventName;\n\n if (lastGesture === gesture) { return; }\n\n // Emit event for lastGesture not inactive.\n eventName = getGestureEventName(lastGesture, false);\n if (eventName) { el.emit(eventName); }\n\n // Emit event for current gesture now active.\n eventName = getGestureEventName(gesture, true);\n if (eventName) { el.emit(eventName); }\n },\n\n/**\n * Play hand animation based on button state.\n *\n * @param {string} gesture - Name of the animation as specified by the model.\n * @param {string} lastGesture - Previous pose.\n * @param {boolean} reverse - Whether animation should play in reverse.\n */\n playAnimation: function (gesture, lastGesture, reverse) {\n var fromAction;\n var mesh = this.el.getObject3D('mesh');\n var toAction;\n\n if (!mesh) { return; }\n\n // Grab clip action.\n toAction = mesh.mixer.clipAction(gesture);\n toAction.clampWhenFinished = true;\n toAction.loop = THREE.LoopRepeat;\n toAction.repetitions = 0;\n toAction.timeScale = reverse ? -1 : 1;\n toAction.weight = 1;\n\n // No gesture to gesture or gesture to no gesture.\n if (!lastGesture || gesture === lastGesture) {\n // Stop all current animations.\n mesh.mixer.stopAllAction();\n\n // Play animation.\n toAction.play();\n return;\n }\n\n // Animate or crossfade from gesture to gesture.\n fromAction = mesh.mixer.clipAction(lastGesture);\n mesh.mixer.stopAllAction();\n fromAction.weight = 0.15;\n fromAction.play();\n toAction.play();\n fromAction.crossFadeTo(toAction, 0.15, true);\n },\n\n setModelVisibility: function (visible) {\n var model = this.el.getObject3D('mesh');\n if (!model) { return; }\n model.visible = visible;\n }\n});\n\n/**\n * Suffix gestures based on toggle state (e.g., open/close, up/down, start/end).\n *\n * @param {string} gesture\n * @param {boolean} active\n */\nfunction getGestureEventName (gesture, active) {\n var eventName;\n\n if (!gesture) { return; }\n\n eventName = EVENTS[gesture];\n if (eventName === 'grip') {\n return eventName + (active ? 'close' : 'open');\n }\n if (eventName === 'point' || eventName === 'thumb') {\n return eventName + (active ? 'up' : 'down');\n }\n if (eventName === 'pointing' || eventName === 'pistol') {\n return eventName + (active ? 'start' : 'end');\n }\n return;\n}\n\nfunction isViveController (trackedControls) {\n var controllerId = trackedControls && trackedControls.controller &&\n trackedControls.controller.id;\n return controllerId && controllerId.indexOf('OpenVR ') === 0;\n}\n", "require('./animation');\nrequire('./camera');\nrequire('./collada-model');\nrequire('./cursor');\nrequire('./daydream-controls');\nrequire('./gearvr-controls');\nrequire('./geometry');\nrequire('./gltf-model');\nrequire('./hand-controls');\nrequire('./laser-controls');\nrequire('./light');\nrequire('./line');\nrequire('./link');\nrequire('./look-controls');\nrequire('./material');\nrequire('./obj-model');\nrequire('./oculus-go-controls');\nrequire('./oculus-touch-controls');\nrequire('./position');\nrequire('./raycaster');\nrequire('./rotation');\nrequire('./scale');\nrequire('./shadow');\nrequire('./sound');\nrequire('./text');\nrequire('./tracked-controls');\nrequire('./visible');\nrequire('./vive-controls');\nrequire('./wasd-controls');\nrequire('./windows-motion-controls');\n\nrequire('./scene/background');\nrequire('./scene/debug');\nrequire('./scene/effects');\nrequire('./scene/embedded');\nrequire('./scene/inspector');\nrequire('./scene/fog');\nrequire('./scene/keyboard-shortcuts');\nrequire('./scene/overlay');\nrequire('./scene/pool');\nrequire('./scene/renderer');\nrequire('./scene/screenshot');\nrequire('./scene/stats');\nrequire('./scene/vr-mode-ui');\n", - "var registerComponent = require('../core/component').registerComponent;\nvar utils = require('../utils/');\n\nregisterComponent('laser-controls', {\n schema: {\n hand: {default: 'right'}\n },\n\n init: function () {\n var config = this.config;\n var data = this.data;\n var el = this.el;\n var self = this;\n\n // Set all controller models.\n el.setAttribute('daydream-controls', {hand: data.hand});\n el.setAttribute('gearvr-controls', {hand: data.hand});\n el.setAttribute('oculus-go-controls', {hand: data.hand});\n el.setAttribute('oculus-touch-controls', {hand: data.hand});\n el.setAttribute('vive-controls', {hand: data.hand});\n el.setAttribute('windows-motion-controls', {hand: data.hand});\n\n // Wait for controller to connect, or have a valid pointing pose, before creating ray\n el.addEventListener('controllerconnected', createRay);\n el.addEventListener('controllerdisconnected', hideRay);\n el.addEventListener('controllermodelready', function (evt) {\n createRay(evt);\n self.modelReady = true;\n });\n\n function createRay (evt) {\n var controllerConfig = config[evt.detail.name];\n\n if (!controllerConfig) { return; }\n\n // Show the line unless a particular config opts to hide it, until a controllermodelready\n // event comes through.\n var raycasterConfig = utils.extend({\n showLine: true\n }, controllerConfig.raycaster || {});\n\n // The controllermodelready event contains a rayOrigin that takes into account\n // offsets specific to the loaded model.\n if (evt.detail.rayOrigin) {\n raycasterConfig.origin = evt.detail.rayOrigin.origin;\n raycasterConfig.direction = evt.detail.rayOrigin.direction;\n raycasterConfig.showLine = true;\n }\n\n // Only apply a default raycaster if it does not yet exist. This prevents it overwriting\n // config applied from a controllermodelready event.\n if (evt.detail.rayOrigin || !self.modelReady) {\n el.setAttribute('raycaster', raycasterConfig);\n } else {\n el.setAttribute('raycaster', 'showLine', true);\n }\n\n el.setAttribute('cursor', utils.extend({\n fuse: false\n }, controllerConfig.cursor));\n }\n\n function hideRay () {\n el.setAttribute('raycaster', 'showLine', false);\n }\n },\n\n config: {\n 'daydream-controls': {\n cursor: {downEvents: ['trackpaddown'], upEvents: ['trackpadup']}\n },\n\n 'gearvr-controls': {\n cursor: {downEvents: ['trackpaddown', 'triggerdown'], upEvents: ['trackpadup', 'triggerup']},\n raycaster: {origin: {x: 0, y: 0.0005, z: 0}}\n },\n\n 'oculus-go-controls': {\n cursor: {downEvents: ['trackpaddown', 'triggerdown'], upEvents: ['trackpadup', 'triggerup']},\n raycaster: {origin: {x: 0, y: 0.0005, z: 0}}\n },\n\n 'oculus-touch-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n raycaster: {origin: {x: 0, y: 0, z: 0}}\n },\n\n 'vive-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']}\n },\n\n 'windows-motion-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n raycaster: {showLine: false}\n }\n }\n});\n", + "var registerComponent = require('../core/component').registerComponent;\nvar utils = require('../utils/');\n\nregisterComponent('laser-controls', {\n schema: {\n hand: {default: 'right'}\n },\n\n init: function () {\n var config = this.config;\n var data = this.data;\n var el = this.el;\n var self = this;\n\n // Set all controller models.\n el.setAttribute('daydream-controls', {hand: data.hand});\n el.setAttribute('gearvr-controls', {hand: data.hand});\n el.setAttribute('oculus-go-controls', {hand: data.hand});\n el.setAttribute('oculus-touch-controls', {hand: data.hand});\n el.setAttribute('vive-controls', {hand: data.hand});\n el.setAttribute('windows-motion-controls', {hand: data.hand});\n\n // Wait for controller to connect, or have a valid pointing pose, before creating ray\n el.addEventListener('controllerconnected', createRay);\n el.addEventListener('controllerdisconnected', hideRay);\n el.addEventListener('controllermodelready', function (evt) {\n createRay(evt);\n self.modelReady = true;\n });\n\n function createRay (evt) {\n var controllerConfig = config[evt.detail.name];\n\n if (!controllerConfig) { return; }\n\n // Show the line unless a particular config opts to hide it, until a controllermodelready\n // event comes through.\n var raycasterConfig = utils.extend({\n showLine: true\n }, controllerConfig.raycaster || {});\n\n // The controllermodelready event contains a rayOrigin that takes into account\n // offsets specific to the loaded model.\n if (evt.detail.rayOrigin) {\n raycasterConfig.origin = evt.detail.rayOrigin.origin;\n raycasterConfig.direction = evt.detail.rayOrigin.direction;\n raycasterConfig.showLine = true;\n }\n\n // Only apply a default raycaster if it does not yet exist. This prevents it overwriting\n // config applied from a controllermodelready event.\n if (evt.detail.rayOrigin || !self.modelReady) {\n el.setAttribute('raycaster', raycasterConfig);\n } else {\n el.setAttribute('raycaster', 'showLine', true);\n }\n\n el.setAttribute('cursor', utils.extend({\n fuse: false\n }, controllerConfig.cursor));\n }\n\n function hideRay () {\n el.setAttribute('raycaster', 'showLine', false);\n }\n },\n\n config: {\n 'daydream-controls': {\n cursor: {downEvents: ['trackpaddown'], upEvents: ['trackpadup']}\n },\n\n 'gearvr-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n raycaster: {origin: {x: 0, y: 0.0005, z: 0}}\n },\n\n 'oculus-go-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n raycaster: {origin: {x: 0, y: 0.0005, z: 0}}\n },\n\n 'oculus-touch-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n raycaster: {origin: {x: 0, y: 0, z: 0}}\n },\n\n 'vive-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']}\n },\n\n 'windows-motion-controls': {\n cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n raycaster: {showLine: false}\n }\n }\n});\n", "var bind = require('../utils/bind');\nvar diff = require('../utils').diff;\nvar debug = require('../utils/debug');\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\nvar warn = debug('components:light:warn');\n\n/**\n * Light component.\n */\nmodule.exports.Component = registerComponent('light', {\n schema: {\n angle: {default: 60, if: {type: ['spot']}},\n color: {type: 'color'},\n groundColor: {type: 'color', if: {type: ['hemisphere']}},\n decay: {default: 1, if: {type: ['point', 'spot']}},\n distance: {default: 0.0, min: 0, if: {type: ['point', 'spot']}},\n intensity: {default: 1.0, min: 0, if: {type: ['ambient', 'directional', 'hemisphere', 'point', 'spot']}},\n penumbra: {default: 0, min: 0, max: 1, if: {type: ['spot']}},\n type: {default: 'directional', oneOf: ['ambient', 'directional', 'hemisphere', 'point', 'spot']},\n target: {type: 'selector', if: {type: ['spot', 'directional']}},\n\n // Shadows.\n castShadow: {default: false, if: {type: ['point', 'spot', 'directional']}},\n shadowBias: {default: 0, if: {castShadow: true}},\n shadowCameraFar: {default: 500, if: {castShadow: true}},\n shadowCameraFov: {default: 90, if: {castShadow: true}},\n shadowCameraNear: {default: 0.5, if: {castShadow: true}},\n shadowCameraTop: {default: 5, if: {castShadow: true}},\n shadowCameraRight: {default: 5, if: {castShadow: true}},\n shadowCameraBottom: {default: -5, if: {castShadow: true}},\n shadowCameraLeft: {default: -5, if: {castShadow: true}},\n shadowCameraVisible: {default: false, if: {castShadow: true}},\n shadowMapHeight: {default: 512, if: {castShadow: true}},\n shadowMapWidth: {default: 512, if: {castShadow: true}},\n shadowRadius: {default: 1, if: {castShadow: true}}\n },\n\n /**\n * Notifies scene a light has been added to remove default lighting.\n */\n init: function () {\n var el = this.el;\n this.light = null;\n this.defaultTarget = null;\n this.system.registerLight(el);\n },\n\n /**\n * (Re)create or update light.\n */\n update: function (oldData) {\n var data = this.data;\n var diffData = diff(data, oldData);\n var light = this.light;\n var self = this;\n\n // Existing light.\n if (light && !('type' in diffData)) {\n var shadowsLoaded = false;\n // Light type has not changed. Update light.\n Object.keys(diffData).forEach(function (key) {\n var value = data[key];\n\n switch (key) {\n case 'color': {\n light.color.set(value);\n break;\n }\n\n case 'groundColor': {\n light.groundColor.set(value);\n break;\n }\n\n case 'angle': {\n light.angle = degToRad(value);\n break;\n }\n\n case 'target': {\n // Reset target if selector is null.\n if (value === null) {\n if (data.type === 'spot' || data.type === 'directional') {\n light.target = self.defaultTarget;\n }\n } else {\n // Target specified, set target to entity's `object3D` when it is loaded.\n if (value.hasLoaded) {\n self.onSetTarget(value, light);\n } else {\n value.addEventListener('loaded', bind(self.onSetTarget, self, value, light));\n }\n }\n break;\n }\n\n case 'castShadow':\n case 'shadowBias':\n case 'shadowCameraFar':\n case 'shadowCameraFov':\n case 'shadowCameraNear':\n case 'shadowCameraTop':\n case 'shadowCameraRight':\n case 'shadowCameraBottom':\n case 'shadowCameraLeft':\n case 'shadowCameraVisible':\n case 'shadowMapHeight':\n case 'shadowMapWidth':\n case 'shadowRadius':\n if (!shadowsLoaded) {\n self.updateShadow();\n shadowsLoaded = true;\n }\n break;\n\n default: {\n light[key] = value;\n }\n }\n });\n return;\n }\n\n // No light yet or light type has changed. Create and add light.\n this.setLight(this.data);\n this.updateShadow();\n },\n\n setLight: function (data) {\n var el = this.el;\n var newLight = this.getLight(data);\n if (newLight) {\n if (this.light) {\n el.removeObject3D('light');\n }\n\n this.light = newLight;\n this.light.el = el;\n el.setObject3D('light', this.light);\n\n // HACK solution for issue #1624\n if (data.type === 'spot' || data.type === 'directional' || data.type === 'hemisphere') {\n el.getObject3D('light').translateY(-1);\n }\n\n // set and position default lighttarget as a child to enable spotlight orientation\n if (data.type === 'spot') {\n el.setObject3D('light-target', this.defaultTarget);\n el.getObject3D('light-target').position.set(0, 0, -1);\n }\n }\n },\n\n /**\n * Updates shadow-related properties on the current light.\n */\n updateShadow: function () {\n var el = this.el;\n var data = this.data;\n var light = this.light;\n\n light.castShadow = data.castShadow;\n\n // Shadow camera helper.\n var cameraHelper = el.getObject3D('cameraHelper');\n if (data.shadowCameraVisible && !cameraHelper) {\n el.setObject3D('cameraHelper', new THREE.CameraHelper(light.shadow.camera));\n } else if (!data.shadowCameraVisible && cameraHelper) {\n el.removeObject3D('cameraHelper');\n }\n\n if (!data.castShadow) { return light; }\n\n // Shadow appearance.\n light.shadow.bias = data.shadowBias;\n light.shadow.radius = data.shadowRadius;\n light.shadow.mapSize.height = data.shadowMapHeight;\n light.shadow.mapSize.width = data.shadowMapWidth;\n\n // Shadow camera.\n light.shadow.camera.near = data.shadowCameraNear;\n light.shadow.camera.far = data.shadowCameraFar;\n if (light.shadow.camera instanceof THREE.OrthographicCamera) {\n light.shadow.camera.top = data.shadowCameraTop;\n light.shadow.camera.right = data.shadowCameraRight;\n light.shadow.camera.bottom = data.shadowCameraBottom;\n light.shadow.camera.left = data.shadowCameraLeft;\n } else {\n light.shadow.camera.fov = data.shadowCameraFov;\n }\n light.shadow.camera.updateProjectionMatrix();\n\n if (cameraHelper) { cameraHelper.update(); }\n },\n\n /**\n * Creates a new three.js light object given data object defining the light.\n *\n * @param {object} data\n */\n getLight: function (data) {\n var angle = data.angle;\n var color = new THREE.Color(data.color).getHex();\n var decay = data.decay;\n var distance = data.distance;\n var groundColor = new THREE.Color(data.groundColor).getHex();\n var intensity = data.intensity;\n var type = data.type;\n var target = data.target;\n var light = null;\n\n switch (type.toLowerCase()) {\n case 'ambient': {\n return new THREE.AmbientLight(color, intensity);\n }\n\n case 'directional': {\n light = new THREE.DirectionalLight(color, intensity);\n this.defaultTarget = light.target;\n if (target) {\n if (target.hasLoaded) {\n this.onSetTarget(target, light);\n } else {\n target.addEventListener('loaded', bind(this.onSetTarget, this, target, light));\n }\n }\n return light;\n }\n\n case 'hemisphere': {\n return new THREE.HemisphereLight(color, groundColor, intensity);\n }\n\n case 'point': {\n return new THREE.PointLight(color, intensity, distance, decay);\n }\n\n case 'spot': {\n light = new THREE.SpotLight(color, intensity, distance, degToRad(angle), data.penumbra, decay);\n this.defaultTarget = light.target;\n if (target) {\n if (target.hasLoaded) {\n this.onSetTarget(target, light);\n } else {\n target.addEventListener('loaded', bind(this.onSetTarget, this, target, light));\n }\n }\n return light;\n }\n\n default: {\n warn('%s is not a valid light type. ' +\n 'Choose from ambient, directional, hemisphere, point, spot.', type);\n }\n }\n },\n\n onSetTarget: function (targetEl, light) {\n light.target = targetEl.object3D;\n },\n\n /**\n * Remove light on remove (callback).\n */\n remove: function () {\n var el = this.el;\n el.removeObject3D('light');\n if (el.getObject3D('cameraHelper')) {\n el.removeObject3D('cameraHelper');\n }\n }\n});\n", "/* global THREE */\nvar registerComponent = require('../core/component').registerComponent;\n\nmodule.exports.Component = registerComponent('line', {\n schema: {\n start: {type: 'vec3', default: {x: 0, y: 0, z: 0}},\n end: {type: 'vec3', default: {x: 0, y: 0, z: 0}},\n color: {type: 'color', default: '#74BEC1'},\n opacity: {type: 'number', default: 1},\n visible: {default: true}\n },\n\n multiple: true,\n\n init: function () {\n var data = this.data;\n var geometry;\n var material;\n material = this.material = new THREE.LineBasicMaterial({\n color: data.color,\n opacity: data.opacity,\n transparent: data.opacity < 1,\n visible: data.visible\n });\n geometry = this.geometry = new THREE.BufferGeometry();\n geometry.addAttribute('position', new THREE.BufferAttribute(new Float32Array(2 * 3), 3));\n\n this.line = new THREE.Line(geometry, material);\n this.el.setObject3D(this.attrName, this.line);\n },\n\n update: function (oldData) {\n var data = this.data;\n var geometry = this.geometry;\n var geoNeedsUpdate = false;\n var material = this.material;\n var positionArray = geometry.attributes.position.array;\n\n // Update geometry.\n if (!isEqualVec3(data.start, oldData.start)) {\n positionArray[0] = data.start.x;\n positionArray[1] = data.start.y;\n positionArray[2] = data.start.z;\n geoNeedsUpdate = true;\n }\n\n if (!isEqualVec3(data.end, oldData.end)) {\n positionArray[3] = data.end.x;\n positionArray[4] = data.end.y;\n positionArray[5] = data.end.z;\n geoNeedsUpdate = true;\n }\n\n if (geoNeedsUpdate) {\n geometry.attributes.position.needsUpdate = true;\n geometry.computeBoundingSphere();\n }\n\n material.color.setStyle(data.color);\n material.opacity = data.opacity;\n material.transparent = data.opacity < 1;\n material.visible = data.visible;\n },\n\n remove: function () {\n this.el.removeObject3D('line', this.line);\n }\n});\n\nfunction isEqualVec3 (a, b) {\n if (!a || !b) { return false; }\n return (a.x === b.x && a.y === b.y && a.z === b.z);\n}\n", "var registerComponent = require('../core/component').registerComponent;\nvar registerShader = require('../core/shader').registerShader;\nvar THREE = require('../lib/three');\n\n/**\n * Link component. Connect experiences and traverse between them in VR\n *\n * @member {object} hiddenEls - Store the hidden elements during peek mode.\n */\nmodule.exports.Component = registerComponent('link', {\n schema: {\n backgroundColor: {default: 'red', type: 'color'},\n borderColor: {default: 'white', type: 'color'},\n highlighted: {default: false},\n highlightedColor: {default: '#24CAFF', type: 'color'},\n href: {default: ''},\n image: {type: 'asset'},\n on: {default: 'click'},\n peekMode: {default: false},\n title: {default: ''},\n titleColor: {default: 'white', type: 'color'},\n visualAspectEnabled: {default: false}\n },\n\n init: function () {\n this.navigate = this.navigate.bind(this);\n this.previousQuaternion = undefined;\n this.quaternionClone = new THREE.Quaternion();\n // Store hidden elements during peek mode so we can show them again later.\n this.hiddenEls = [];\n },\n\n update: function (oldData) {\n var data = this.data;\n var el = this.el;\n var backgroundColor;\n var strokeColor;\n\n if (!data.visualAspectEnabled) { return; }\n\n this.initVisualAspect();\n\n backgroundColor = data.highlighted ? data.highlightedColor : data.backgroundColor;\n strokeColor = data.highlighted ? data.highlightedColor : data.borderColor;\n el.setAttribute('material', 'backgroundColor', backgroundColor);\n el.setAttribute('material', 'strokeColor', strokeColor);\n\n if (data.on !== oldData.on) { this.updateEventListener(); }\n\n if (oldData.peekMode !== undefined &&\n data.peekMode !== oldData.peekMode) { this.updatePeekMode(); }\n\n if (!data.image || oldData.image === data.image) { return; }\n\n el.setAttribute('material', 'pano',\n typeof data.image === 'string' ? data.image : data.image.src);\n },\n\n /*\n * Toggle all elements and full 360 preview of the linked page.\n */\n updatePeekMode: function () {\n var el = this.el;\n var sphereEl = this.sphereEl;\n if (this.data.peekMode) {\n this.hideAll();\n el.getObject3D('mesh').visible = false;\n sphereEl.setAttribute('visible', true);\n } else {\n this.showAll();\n el.getObject3D('mesh').visible = true;\n sphereEl.setAttribute('visible', false);\n }\n },\n\n play: function () {\n this.updateEventListener();\n },\n\n pause: function () {\n this.removeEventListener();\n },\n\n updateEventListener: function () {\n var el = this.el;\n if (!el.isPlaying) { return; }\n this.removeEventListener();\n el.addEventListener(this.data.on, this.navigate);\n },\n\n removeEventListener: function () {\n var on = this.data.on;\n if (!on) { return; }\n this.el.removeEventListener(on, this.navigate);\n },\n\n initVisualAspect: function () {\n var el = this.el;\n var semiSphereEl;\n var sphereEl;\n var textEl;\n\n if (!this.data.visualAspectEnabled || this.visualAspectInitialized) { return; }\n\n textEl = this.textEl = this.textEl || document.createElement('a-entity');\n sphereEl = this.sphereEl = this.sphereEl || document.createElement('a-entity');\n semiSphereEl = this.semiSphereEl = this.semiSphereEl || document.createElement('a-entity');\n\n // Set portal.\n el.setAttribute('geometry', {primitive: 'circle', radius: 1.0, segments: 64});\n el.setAttribute('material', {shader: 'portal', pano: this.data.image, side: 'double'});\n\n // Set text that displays the link title and URL.\n textEl.setAttribute('text', {\n color: this.data.titleColor,\n align: 'center',\n font: 'kelsonsans',\n value: this.data.title || this.data.href,\n width: 4\n });\n textEl.setAttribute('position', '0 1.5 0');\n el.appendChild(textEl);\n\n // Set sphere rendered when camera is close to portal to allow user to peek inside.\n semiSphereEl.setAttribute('geometry', {\n primitive: 'sphere',\n radius: 1.0,\n phiStart: 0,\n segmentsWidth: 64,\n segmentsHeight: 64,\n phiLength: 180,\n thetaStart: 0,\n thetaLength: 360\n });\n semiSphereEl.setAttribute('material', {\n shader: 'portal',\n borderEnabled: 0.0,\n pano: this.data.image,\n side: 'back'\n });\n semiSphereEl.setAttribute('rotation', '0 180 0');\n semiSphereEl.setAttribute('position', '0 0 0');\n semiSphereEl.setAttribute('visible', false);\n el.appendChild(semiSphereEl);\n\n // Set sphere rendered when camera is close to portal to allow user to peek inside.\n sphereEl.setAttribute('geometry', {\n primitive: 'sphere',\n radius: 10,\n segmentsWidth: 64,\n segmentsHeight: 64\n });\n sphereEl.setAttribute('material', {\n shader: 'portal',\n borderEnabled: 0.0,\n pano: this.data.image,\n side: 'back'\n });\n sphereEl.setAttribute('visible', false);\n el.appendChild(sphereEl);\n\n this.visualAspectInitialized = true;\n },\n\n navigate: function () {\n window.location = this.data.href;\n },\n\n /**\n * 1. Swap plane that represents portal with sphere with a hole when the camera is close\n * so user can peek inside portal. Sphere is rendered on oposite side of portal\n * from where user enters.\n * 2. Place the url/title above or inside portal depending on distance to camera.\n * 3. Face portal to camera when far away from user.\n */\n tick: (function () {\n var cameraWorldPosition = new THREE.Vector3();\n var elWorldPosition = new THREE.Vector3();\n var quaternion = new THREE.Quaternion();\n var scale = new THREE.Vector3();\n\n return function () {\n var el = this.el;\n var object3D = el.object3D;\n var camera = el.sceneEl.camera;\n var cameraPortalOrientation;\n var distance;\n var textEl = this.textEl;\n\n if (!this.data.visualAspectEnabled) { return; }\n\n // Update matrices\n object3D.updateMatrixWorld();\n camera.parent.updateMatrixWorld();\n camera.updateMatrixWorld();\n\n object3D.matrix.decompose(elWorldPosition, quaternion, scale);\n elWorldPosition.setFromMatrixPosition(object3D.matrixWorld);\n cameraWorldPosition.setFromMatrixPosition(camera.matrixWorld);\n distance = elWorldPosition.distanceTo(cameraWorldPosition);\n\n if (distance > 20) {\n // Store original orientation to be restored when the portal stops facing the camera.\n if (!this.previousQuaternion) {\n this.quaternionClone.copy(quaternion);\n this.previousQuaternion = this.quaternionClone;\n }\n // If the portal is far away from the user, face portal to camera.\n object3D.lookAt(cameraWorldPosition);\n } else {\n // When portal is close to the user/camera.\n cameraPortalOrientation = this.calculateCameraPortalOrientation();\n // If user gets very close to portal, replace with holed sphere they can peek in.\n if (distance < 0.5) {\n // Configure text size and sphere orientation depending side user approaches portal.\n if (this.semiSphereEl.getAttribute('visible') === true) { return; }\n textEl.setAttribute('text', 'width', 1.5);\n if (cameraPortalOrientation <= 0.0) {\n textEl.setAttribute('position', '0 0 0.75');\n textEl.setAttribute('rotation', '0 180 0');\n this.semiSphereEl.setAttribute('rotation', '0 0 0');\n } else {\n textEl.setAttribute('position', '0 0 -0.75');\n textEl.setAttribute('rotation', '0 0 0');\n this.semiSphereEl.setAttribute('rotation', '0 180 0');\n }\n el.getObject3D('mesh').visible = false;\n this.semiSphereEl.setAttribute('visible', true);\n this.peekCameraPortalOrientation = cameraPortalOrientation;\n } else {\n // Calculate wich side the camera is approaching the camera (back / front).\n // Adjust text orientation based on camera position.\n if (cameraPortalOrientation <= 0.0) {\n textEl.setAttribute('rotation', '0 180 0');\n } else {\n textEl.setAttribute('rotation', '0 0 0');\n }\n textEl.setAttribute('text', 'width', 5);\n textEl.setAttribute('position', '0 1.5 0');\n el.getObject3D('mesh').visible = true;\n this.semiSphereEl.setAttribute('visible', false);\n this.peekCameraPortalOrientation = undefined;\n }\n if (this.previousQuaternion) {\n object3D.quaternion.copy(this.previousQuaternion);\n this.previousQuaternion = undefined;\n }\n }\n };\n })(),\n\n hideAll: function () {\n var el = this.el;\n var hiddenEls = this.hiddenEls;\n var self = this;\n if (hiddenEls.length > 0) { return; }\n el.sceneEl.object3D.traverse(function (object) {\n if (object && object.el && object.el.hasAttribute('link-controls')) { return; }\n if (!object.el || object === el.sceneEl.object3D || object.el === el ||\n object.el === self.sphereEl || object.el === el.sceneEl.cameraEl ||\n object.el.getAttribute('visible') === false || object.el === self.textEl ||\n object.el === self.semiSphereEl) {\n return;\n }\n object.el.setAttribute('visible', false);\n hiddenEls.push(object.el);\n });\n },\n\n showAll: function () {\n this.hiddenEls.forEach(function (el) { el.setAttribute('visible', true); });\n this.hiddenEls = [];\n },\n\n /**\n * Calculate whether the camera faces the front or back face of the portal.\n * @returns {number} > 0 if camera faces front of portal, < 0 if it faces back of portal.\n */\n calculateCameraPortalOrientation: (function () {\n var mat4 = new THREE.Matrix4();\n var cameraPosition = new THREE.Vector3();\n var portalNormal = new THREE.Vector3(0, 0, 1);\n var portalPosition = new THREE.Vector3(0, 0, 0);\n\n return function () {\n var el = this.el;\n var camera = el.sceneEl.camera;\n\n // Reset tmp variables.\n cameraPosition.set(0, 0, 0);\n portalNormal.set(0, 0, 1);\n portalPosition.set(0, 0, 0);\n\n // Apply portal orientation to the normal.\n el.object3D.matrixWorld.extractRotation(mat4);\n portalNormal.applyMatrix4(mat4);\n\n // Calculate portal world position.\n el.object3D.updateMatrixWorld();\n el.object3D.localToWorld(portalPosition);\n\n // Calculate camera world position.\n camera.parent.parent.updateMatrixWorld();\n camera.parent.updateMatrixWorld();\n camera.updateMatrixWorld();\n camera.localToWorld(cameraPosition);\n\n // Calculate vector from portal to camera.\n // (portal) -------> (camera)\n cameraPosition.sub(portalPosition).normalize();\n portalNormal.normalize();\n\n // Side where camera approaches portal is given by sign of dot product of portal normal\n // and portal to camera vectors.\n return Math.sign(portalNormal.dot(cameraPosition));\n };\n })(),\n\n remove: function () {\n this.removeEventListener();\n }\n});\n\n/* eslint-disable */\nregisterShader('portal', {\n schema: {\n borderEnabled: {default: 1.0, type: 'int', is: 'uniform'},\n backgroundColor: {default: 'red', type: 'color', is: 'uniform'},\n pano: {type: 'map', is: 'uniform'},\n strokeColor: {default: 'white', type: 'color', is: 'uniform'}\n },\n\n vertexShader: [\n 'vec3 portalPosition;',\n 'varying vec3 vWorldPosition;',\n 'varying float vDistanceToCenter;',\n 'varying float vDistance;',\n 'void main() {',\n 'vDistanceToCenter = clamp(length(position - vec3(0.0, 0.0, 0.0)), 0.0, 1.0);',\n 'portalPosition = (modelMatrix * vec4(0.0, 0.0, 0.0, 1.0)).xyz;',\n 'vDistance = length(portalPosition - cameraPosition);',\n 'vWorldPosition = (modelMatrix * vec4(position, 1.0)).xyz;',\n 'gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',\n '}'\n ].join('\\n'),\n\n fragmentShader: [\n '#define RECIPROCAL_PI2 0.15915494',\n 'uniform sampler2D pano;',\n 'uniform vec3 strokeColor;',\n 'uniform vec3 backgroundColor;',\n 'uniform float borderEnabled;',\n 'varying float vDistanceToCenter;',\n 'varying float vDistance;',\n 'varying vec3 vWorldPosition;',\n 'void main() {',\n 'vec3 direction = normalize(vWorldPosition - cameraPosition);',\n 'vec2 sampleUV;',\n 'float borderThickness = clamp(exp(-vDistance / 50.0), 0.6, 0.95);',\n 'sampleUV.y = saturate(direction.y * 0.5 + 0.5);',\n 'sampleUV.x = atan(direction.z, -direction.x) * -RECIPROCAL_PI2 + 0.5;',\n 'if (vDistanceToCenter > borderThickness && borderEnabled == 1.0) {',\n 'gl_FragColor = vec4(strokeColor, 1.0);',\n '} else {',\n 'gl_FragColor = mix(texture2D(pano, sampleUV), vec4(backgroundColor, 1.0), clamp(pow((vDistance / 15.0), 2.0), 0.0, 1.0));',\n '}',\n '}'\n ].join('\\n')\n});\n/* eslint-enable */\n", - "var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\nvar bind = utils.bind;\nvar PolyfillControls = require('../utils').device.PolyfillControls;\n\n// To avoid recalculation at every mouse movement tick\nvar GRABBING_CLASS = 'a-grabbing';\nvar PI_2 = Math.PI / 2;\n\nvar checkHasPositionalTracking = utils.device.checkHasPositionalTracking;\n\n/**\n * look-controls. Update entity pose, factoring mouse, touch, and WebVR API data.\n */\nmodule.exports.Component = registerComponent('look-controls', {\n dependencies: ['position', 'rotation'],\n\n schema: {\n enabled: {default: true},\n hmdEnabled: {default: true},\n pointerLockEnabled: {default: false},\n reverseMouseDrag: {default: false},\n reverseTouchDrag: {default: false},\n touchEnabled: {default: true}\n },\n\n init: function () {\n this.previousHMDPosition = new THREE.Vector3();\n this.hmdQuaternion = new THREE.Quaternion();\n this.hmdEuler = new THREE.Euler();\n this.position = new THREE.Vector3();\n // To save / restore camera pose\n this.savedRotation = new THREE.Vector3();\n this.savedPosition = new THREE.Vector3();\n this.polyfillObject = new THREE.Object3D();\n this.polyfillControls = new PolyfillControls(this.polyfillObject);\n this.rotation = {};\n this.deltaRotation = {};\n this.savedPose = null;\n this.pointerLocked = false;\n this.setupMouseControls();\n this.setupHMDControls();\n this.bindMethods();\n\n this.savedPose = {\n position: new THREE.Vector3(),\n rotation: new THREE.Euler()\n };\n\n // Call enter VR handler if the scene has entered VR before the event listeners attached.\n if (this.el.sceneEl.is('vr-mode')) { this.onEnterVR(); }\n },\n\n update: function (oldData) {\n var data = this.data;\n\n // Disable grab cursor classes if no longer enabled.\n if (data.enabled !== oldData.enabled) {\n this.updateGrabCursor(data.enabled);\n }\n\n // Reset pitch and yaw if disabling HMD.\n if (oldData && !data.hmdEnabled && !oldData.hmdEnabled) {\n this.pitchObject.rotation.set(0, 0, 0);\n this.yawObject.rotation.set(0, 0, 0);\n }\n\n if (oldData && !data.pointerLockEnabled !== oldData.pointerLockEnabled) {\n this.removeEventListeners();\n this.addEventListeners();\n if (this.pointerLocked) { document.exitPointerLock(); }\n }\n },\n\n tick: function (t) {\n var data = this.data;\n if (!data.enabled) { return; }\n this.controls.update();\n this.updateOrientation();\n this.updatePosition();\n },\n\n play: function () {\n this.addEventListeners();\n },\n\n pause: function () {\n this.removeEventListeners();\n },\n\n remove: function () {\n this.removeEventListeners();\n },\n\n bindMethods: function () {\n this.onMouseDown = bind(this.onMouseDown, this);\n this.onMouseMove = bind(this.onMouseMove, this);\n this.onMouseUp = bind(this.onMouseUp, this);\n this.onTouchStart = bind(this.onTouchStart, this);\n this.onTouchMove = bind(this.onTouchMove, this);\n this.onTouchEnd = bind(this.onTouchEnd, this);\n this.onEnterVR = bind(this.onEnterVR, this);\n this.onExitVR = bind(this.onExitVR, this);\n this.onPointerLockChange = bind(this.onPointerLockChange, this);\n this.onPointerLockError = bind(this.onPointerLockError, this);\n },\n\n /**\n * Set up states and Object3Ds needed to store rotation data.\n */\n setupMouseControls: function () {\n this.mouseDown = false;\n this.pitchObject = new THREE.Object3D();\n this.yawObject = new THREE.Object3D();\n this.yawObject.position.y = 10;\n this.yawObject.add(this.pitchObject);\n },\n\n /**\n * Set up VR controls that will copy data to the dolly.\n */\n setupHMDControls: function () {\n this.dolly = new THREE.Object3D();\n this.euler = new THREE.Euler();\n this.hmdQuaternion = new THREE.Quaternion();\n this.controls = new THREE.VRControls(this.dolly);\n this.controls.userHeight = 0.0;\n },\n\n /**\n * Add mouse and touch event listeners to canvas.\n */\n addEventListeners: function () {\n var sceneEl = this.el.sceneEl;\n var canvasEl = sceneEl.canvas;\n\n // Wait for canvas to load.\n if (!canvasEl) {\n sceneEl.addEventListener('render-target-loaded', bind(this.addEventListeners, this));\n return;\n }\n\n // Mouse events.\n canvasEl.addEventListener('mousedown', this.onMouseDown, false);\n window.addEventListener('mousemove', this.onMouseMove, false);\n window.addEventListener('mouseup', this.onMouseUp, false);\n\n // Touch events.\n canvasEl.addEventListener('touchstart', this.onTouchStart);\n window.addEventListener('touchmove', this.onTouchMove);\n window.addEventListener('touchend', this.onTouchEnd);\n\n // sceneEl events.\n sceneEl.addEventListener('enter-vr', this.onEnterVR);\n sceneEl.addEventListener('exit-vr', this.onExitVR);\n\n // Pointer Lock events.\n if (this.data.pointerLockEnabled) {\n document.addEventListener('pointerlockchange', this.onPointerLockChange, false);\n document.addEventListener('mozpointerlockchange', this.onPointerLockChange, false);\n document.addEventListener('pointerlockerror', this.onPointerLockError, false);\n }\n },\n\n /**\n * Remove mouse and touch event listeners from canvas.\n */\n removeEventListeners: function () {\n var sceneEl = this.el.sceneEl;\n var canvasEl = sceneEl && sceneEl.canvas;\n\n if (!canvasEl) { return; }\n\n // Mouse events.\n canvasEl.removeEventListener('mousedown', this.onMouseDown);\n window.removeEventListener('mousemove', this.onMouseMove);\n window.removeEventListener('mouseup', this.onMouseUp);\n\n // Touch events.\n canvasEl.removeEventListener('touchstart', this.onTouchStart);\n window.removeEventListener('touchmove', this.onTouchMove);\n window.removeEventListener('touchend', this.onTouchEnd);\n\n // sceneEl events.\n sceneEl.removeEventListener('enter-vr', this.onEnterVR);\n sceneEl.removeEventListener('exit-vr', this.onExitVR);\n\n // Pointer Lock events.\n document.removeEventListener('pointerlockchange', this.onPointerLockChange, false);\n document.removeEventListener('mozpointerlockchange', this.onPointerLockChange, false);\n document.removeEventListener('pointerlockerror', this.onPointerLockError, false);\n },\n\n /**\n * Update orientation for mobile, mouse drag, and headset.\n * Mouse-drag only enabled if HMD is not active.\n */\n updateOrientation: function () {\n var el = this.el;\n var hmdEuler = this.hmdEuler;\n var hmdQuaternion = this.hmdQuaternion;\n var pitchObject = this.pitchObject;\n var yawObject = this.yawObject;\n var sceneEl = this.el.sceneEl;\n\n // In VR mode, THREE is in charge of updating the camera rotation.\n if (sceneEl.is('vr-mode') && sceneEl.checkHeadsetConnected()) {\n hmdQuaternion = hmdQuaternion.copy(this.dolly.quaternion);\n hmdEuler.setFromQuaternion(hmdQuaternion, 'YXZ');\n el.object3D.rotation.copy(hmdEuler);\n return;\n }\n\n // Calculate polyfilled HMD quaternion.\n this.polyfillControls.update();\n hmdEuler.setFromQuaternion(this.polyfillObject.quaternion, 'YXZ');\n // On mobile, do camera rotation with touch events and sensors.\n el.object3D.rotation.x = hmdEuler.x + pitchObject.rotation.x;\n el.object3D.rotation.y = hmdEuler.y + yawObject.rotation.y;\n },\n\n updatePosition: (function () {\n var position = new THREE.Vector3();\n return function () {\n var el = this.el;\n if (!el.sceneEl.is('vr-mode')) { return; }\n this.dolly.updateMatrix();\n position.setFromMatrixPosition(this.dolly.matrix);\n el.object3D.position.copy(position);\n };\n })(),\n\n /**\n * Translate mouse drag into rotation.\n *\n * Dragging up and down rotates the camera around the X-axis (yaw).\n * Dragging left and right rotates the camera around the Y-axis (pitch).\n */\n onMouseMove: function (event) {\n var direction;\n var movementX;\n var movementY;\n var pitchObject = this.pitchObject;\n var previousMouseEvent = this.previousMouseEvent;\n var yawObject = this.yawObject;\n\n // Not dragging or not enabled.\n if (!this.data.enabled || (!this.mouseDown && !this.pointerLocked)) { return; }\n\n // Calculate delta.\n if (this.pointerLocked) {\n movementX = event.movementX || event.mozMovementX || 0;\n movementY = event.movementY || event.mozMovementY || 0;\n } else {\n movementX = event.screenX - previousMouseEvent.screenX;\n movementY = event.screenY - previousMouseEvent.screenY;\n }\n this.previousMouseEvent = event;\n\n // Calculate rotation.\n direction = this.data.reverseMouseDrag ? 1 : -1;\n yawObject.rotation.y += movementX * 0.002 * direction;\n pitchObject.rotation.x += movementY * 0.002 * direction;\n pitchObject.rotation.x = Math.max(-PI_2, Math.min(PI_2, pitchObject.rotation.x));\n },\n\n /**\n * Register mouse down to detect mouse drag.\n */\n onMouseDown: function (evt) {\n if (!this.data.enabled) { return; }\n // Handle only primary button.\n if (evt.button !== 0) { return; }\n\n var sceneEl = this.el.sceneEl;\n var canvasEl = sceneEl && sceneEl.canvas;\n\n this.mouseDown = true;\n this.previousMouseEvent = evt;\n document.body.classList.add(GRABBING_CLASS);\n\n if (this.data.pointerLockEnabled && !this.pointerLocked) {\n if (canvasEl.requestPointerLock) {\n canvasEl.requestPointerLock();\n } else if (canvasEl.mozRequestPointerLock) {\n canvasEl.mozRequestPointerLock();\n }\n }\n },\n\n /**\n * Register mouse up to detect release of mouse drag.\n */\n onMouseUp: function () {\n this.mouseDown = false;\n document.body.classList.remove(GRABBING_CLASS);\n },\n\n /**\n * Register touch down to detect touch drag.\n */\n onTouchStart: function (evt) {\n if (evt.touches.length !== 1 || !this.data.touchEnabled) { return; }\n this.touchStart = {\n x: evt.touches[0].pageX,\n y: evt.touches[0].pageY\n };\n this.touchStarted = true;\n },\n\n /**\n * Translate touch move to Y-axis rotation.\n */\n onTouchMove: function (evt) {\n var direction;\n var canvas = this.el.sceneEl.canvas;\n var deltaY;\n var yawObject = this.yawObject;\n\n if (!this.touchStarted || !this.data.touchEnabled) { return; }\n\n deltaY = 2 * Math.PI * (evt.touches[0].pageX - this.touchStart.x) / canvas.clientWidth;\n\n direction = this.data.reverseTouchDrag ? 1 : -1;\n // Limit touch orientaion to to yaw (y axis).\n yawObject.rotation.y -= deltaY * 0.5 * direction;\n this.touchStart = {\n x: evt.touches[0].pageX,\n y: evt.touches[0].pageY\n };\n },\n\n /**\n * Register touch end to detect release of touch drag.\n */\n onTouchEnd: function () {\n this.touchStarted = false;\n },\n\n /**\n * Save pose.\n */\n onEnterVR: function () {\n this.saveCameraPose();\n },\n\n /**\n * Restore the pose.\n */\n onExitVR: function () {\n this.restoreCameraPose();\n this.previousHMDPosition.set(0, 0, 0);\n },\n\n /**\n * Update Pointer Lock state.\n */\n onPointerLockChange: function () {\n this.pointerLocked = !!(document.pointerLockElement || document.mozPointerLockElement);\n },\n\n /**\n * Recover from Pointer Lock error.\n */\n onPointerLockError: function () {\n this.pointerLocked = false;\n },\n\n /**\n * Toggle the feature of showing/hiding the grab cursor.\n */\n updateGrabCursor: function (enabled) {\n var sceneEl = this.el.sceneEl;\n\n function enableGrabCursor () { sceneEl.canvas.classList.add('a-grab-cursor'); }\n function disableGrabCursor () { sceneEl.canvas.classList.remove('a-grab-cursor'); }\n\n if (!sceneEl.canvas) {\n if (enabled) {\n sceneEl.addEventListener('render-target-loaded', enableGrabCursor);\n } else {\n sceneEl.addEventListener('render-target-loaded', disableGrabCursor);\n }\n return;\n }\n\n if (enabled) {\n enableGrabCursor();\n return;\n }\n disableGrabCursor();\n },\n\n /**\n * Save camera pose before entering VR to restore later if exiting.\n */\n saveCameraPose: function () {\n var el = this.el;\n var hasPositionalTracking = this.hasPositionalTracking !== undefined\n ? this.hasPositionalTracking\n : checkHasPositionalTracking();\n\n if (this.hasSavedPose || !hasPositionalTracking) { return; }\n\n this.savedPose.position.copy(el.object3D.position);\n this.savedPose.rotation.copy(el.object3D.rotation);\n this.hasSavedPose = true;\n },\n\n /**\n * Reset camera pose to before entering VR.\n */\n restoreCameraPose: function () {\n var el = this.el;\n var savedPose = this.savedPose;\n var hasPositionalTracking = this.hasPositionalTracking !== undefined\n ? this.hasPositionalTracking\n : checkHasPositionalTracking();\n\n if (!this.hasSavedPose || !hasPositionalTracking) { return; }\n\n // Reset camera orientation.\n el.object3D.position.copy(savedPose.position);\n el.object3D.rotation.copy(savedPose.rotation);\n this.hasSavedPose = false;\n }\n});\n", + "var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\nvar bind = utils.bind;\nvar PolyfillControls = require('../utils').device.PolyfillControls;\n\n// To avoid recalculation at every mouse movement tick\nvar PI_2 = Math.PI / 2;\n\nvar checkHasPositionalTracking = utils.device.checkHasPositionalTracking;\n\n/**\n * look-controls. Update entity pose, factoring mouse, touch, and WebVR API data.\n */\nmodule.exports.Component = registerComponent('look-controls', {\n dependencies: ['position', 'rotation'],\n\n schema: {\n enabled: {default: true},\n hmdEnabled: {default: true},\n pointerLockEnabled: {default: false},\n reverseMouseDrag: {default: false},\n reverseTouchDrag: {default: false},\n touchEnabled: {default: true}\n },\n\n init: function () {\n this.previousHMDPosition = new THREE.Vector3();\n this.hmdQuaternion = new THREE.Quaternion();\n this.hmdEuler = new THREE.Euler();\n this.position = new THREE.Vector3();\n // To save / restore camera pose\n this.savedRotation = new THREE.Vector3();\n this.savedPosition = new THREE.Vector3();\n this.polyfillObject = new THREE.Object3D();\n this.polyfillControls = new PolyfillControls(this.polyfillObject);\n this.rotation = {};\n this.deltaRotation = {};\n this.savedPose = null;\n this.pointerLocked = false;\n this.setupMouseControls();\n this.setupHMDControls();\n this.bindMethods();\n\n this.savedPose = {\n position: new THREE.Vector3(),\n rotation: new THREE.Euler()\n };\n\n // Call enter VR handler if the scene has entered VR before the event listeners attached.\n if (this.el.sceneEl.is('vr-mode')) { this.onEnterVR(); }\n },\n\n update: function (oldData) {\n var data = this.data;\n\n // Disable grab cursor classes if no longer enabled.\n if (data.enabled !== oldData.enabled) {\n this.updateGrabCursor(data.enabled);\n }\n\n // Reset pitch and yaw if disabling HMD.\n if (oldData && !data.hmdEnabled && !oldData.hmdEnabled) {\n this.pitchObject.rotation.set(0, 0, 0);\n this.yawObject.rotation.set(0, 0, 0);\n }\n\n if (oldData && !data.pointerLockEnabled !== oldData.pointerLockEnabled) {\n this.removeEventListeners();\n this.addEventListeners();\n if (this.pointerLocked) { document.exitPointerLock(); }\n }\n },\n\n tick: function (t) {\n var data = this.data;\n if (!data.enabled) { return; }\n this.controls.update();\n this.updateOrientation();\n this.updatePosition();\n },\n\n play: function () {\n this.addEventListeners();\n },\n\n pause: function () {\n this.removeEventListeners();\n },\n\n remove: function () {\n this.removeEventListeners();\n },\n\n bindMethods: function () {\n this.onMouseDown = bind(this.onMouseDown, this);\n this.onMouseMove = bind(this.onMouseMove, this);\n this.onMouseUp = bind(this.onMouseUp, this);\n this.onTouchStart = bind(this.onTouchStart, this);\n this.onTouchMove = bind(this.onTouchMove, this);\n this.onTouchEnd = bind(this.onTouchEnd, this);\n this.onEnterVR = bind(this.onEnterVR, this);\n this.onExitVR = bind(this.onExitVR, this);\n this.onPointerLockChange = bind(this.onPointerLockChange, this);\n this.onPointerLockError = bind(this.onPointerLockError, this);\n },\n\n /**\n * Set up states and Object3Ds needed to store rotation data.\n */\n setupMouseControls: function () {\n this.mouseDown = false;\n this.pitchObject = new THREE.Object3D();\n this.yawObject = new THREE.Object3D();\n this.yawObject.position.y = 10;\n this.yawObject.add(this.pitchObject);\n },\n\n /**\n * Set up VR controls that will copy data to the dolly.\n */\n setupHMDControls: function () {\n this.dolly = new THREE.Object3D();\n this.euler = new THREE.Euler();\n this.hmdQuaternion = new THREE.Quaternion();\n this.controls = new THREE.VRControls(this.dolly);\n this.controls.userHeight = 0.0;\n },\n\n /**\n * Add mouse and touch event listeners to canvas.\n */\n addEventListeners: function () {\n var sceneEl = this.el.sceneEl;\n var canvasEl = sceneEl.canvas;\n\n // Wait for canvas to load.\n if (!canvasEl) {\n sceneEl.addEventListener('render-target-loaded', bind(this.addEventListeners, this));\n return;\n }\n\n // Mouse events.\n canvasEl.addEventListener('mousedown', this.onMouseDown, false);\n window.addEventListener('mousemove', this.onMouseMove, false);\n window.addEventListener('mouseup', this.onMouseUp, false);\n\n // Touch events.\n canvasEl.addEventListener('touchstart', this.onTouchStart);\n window.addEventListener('touchmove', this.onTouchMove);\n window.addEventListener('touchend', this.onTouchEnd);\n\n // sceneEl events.\n sceneEl.addEventListener('enter-vr', this.onEnterVR);\n sceneEl.addEventListener('exit-vr', this.onExitVR);\n\n // Pointer Lock events.\n if (this.data.pointerLockEnabled) {\n document.addEventListener('pointerlockchange', this.onPointerLockChange, false);\n document.addEventListener('mozpointerlockchange', this.onPointerLockChange, false);\n document.addEventListener('pointerlockerror', this.onPointerLockError, false);\n }\n },\n\n /**\n * Remove mouse and touch event listeners from canvas.\n */\n removeEventListeners: function () {\n var sceneEl = this.el.sceneEl;\n var canvasEl = sceneEl && sceneEl.canvas;\n\n if (!canvasEl) { return; }\n\n // Mouse events.\n canvasEl.removeEventListener('mousedown', this.onMouseDown);\n window.removeEventListener('mousemove', this.onMouseMove);\n window.removeEventListener('mouseup', this.onMouseUp);\n\n // Touch events.\n canvasEl.removeEventListener('touchstart', this.onTouchStart);\n window.removeEventListener('touchmove', this.onTouchMove);\n window.removeEventListener('touchend', this.onTouchEnd);\n\n // sceneEl events.\n sceneEl.removeEventListener('enter-vr', this.onEnterVR);\n sceneEl.removeEventListener('exit-vr', this.onExitVR);\n\n // Pointer Lock events.\n document.removeEventListener('pointerlockchange', this.onPointerLockChange, false);\n document.removeEventListener('mozpointerlockchange', this.onPointerLockChange, false);\n document.removeEventListener('pointerlockerror', this.onPointerLockError, false);\n },\n\n /**\n * Update orientation for mobile, mouse drag, and headset.\n * Mouse-drag only enabled if HMD is not active.\n */\n updateOrientation: function () {\n var el = this.el;\n var hmdEuler = this.hmdEuler;\n var hmdQuaternion = this.hmdQuaternion;\n var pitchObject = this.pitchObject;\n var yawObject = this.yawObject;\n var sceneEl = this.el.sceneEl;\n\n // In VR mode, THREE is in charge of updating the camera rotation.\n if (sceneEl.is('vr-mode') && sceneEl.checkHeadsetConnected()) {\n hmdQuaternion = hmdQuaternion.copy(this.dolly.quaternion);\n hmdEuler.setFromQuaternion(hmdQuaternion, 'YXZ');\n el.object3D.rotation.copy(hmdEuler);\n return;\n }\n\n // Calculate polyfilled HMD quaternion.\n this.polyfillControls.update();\n hmdEuler.setFromQuaternion(this.polyfillObject.quaternion, 'YXZ');\n // On mobile, do camera rotation with touch events and sensors.\n el.object3D.rotation.x = hmdEuler.x + pitchObject.rotation.x;\n el.object3D.rotation.y = hmdEuler.y + yawObject.rotation.y;\n },\n\n updatePosition: (function () {\n var position = new THREE.Vector3();\n return function () {\n var el = this.el;\n if (!el.sceneEl.is('vr-mode')) { return; }\n this.dolly.updateMatrix();\n position.setFromMatrixPosition(this.dolly.matrix);\n el.object3D.position.copy(position);\n };\n })(),\n\n /**\n * Translate mouse drag into rotation.\n *\n * Dragging up and down rotates the camera around the X-axis (yaw).\n * Dragging left and right rotates the camera around the Y-axis (pitch).\n */\n onMouseMove: function (event) {\n var direction;\n var movementX;\n var movementY;\n var pitchObject = this.pitchObject;\n var previousMouseEvent = this.previousMouseEvent;\n var yawObject = this.yawObject;\n\n // Not dragging or not enabled.\n if (!this.data.enabled || (!this.mouseDown && !this.pointerLocked)) { return; }\n\n // Calculate delta.\n if (this.pointerLocked) {\n movementX = event.movementX || event.mozMovementX || 0;\n movementY = event.movementY || event.mozMovementY || 0;\n } else {\n movementX = event.screenX - previousMouseEvent.screenX;\n movementY = event.screenY - previousMouseEvent.screenY;\n }\n this.previousMouseEvent = event;\n\n // Calculate rotation.\n direction = this.data.reverseMouseDrag ? 1 : -1;\n yawObject.rotation.y += movementX * 0.002 * direction;\n pitchObject.rotation.x += movementY * 0.002 * direction;\n pitchObject.rotation.x = Math.max(-PI_2, Math.min(PI_2, pitchObject.rotation.x));\n },\n\n /**\n * Register mouse down to detect mouse drag.\n */\n onMouseDown: function (evt) {\n if (!this.data.enabled) { return; }\n // Handle only primary button.\n if (evt.button !== 0) { return; }\n\n var sceneEl = this.el.sceneEl;\n var canvasEl = sceneEl && sceneEl.canvas;\n\n this.mouseDown = true;\n this.previousMouseEvent = evt;\n this.showGrabbingCursor();\n\n if (this.data.pointerLockEnabled && !this.pointerLocked) {\n if (canvasEl.requestPointerLock) {\n canvasEl.requestPointerLock();\n } else if (canvasEl.mozRequestPointerLock) {\n canvasEl.mozRequestPointerLock();\n }\n }\n },\n\n /**\n * Shows grabbing cursor on scene\n */\n showGrabbingCursor: function () {\n this.el.sceneEl.canvas.style.cursor = 'grabbing';\n },\n\n /**\n * Hides grabbing cursor on scene\n */\n hideGrabbingCursor: function () {\n this.el.sceneEl.canvas.style.cursor = '';\n },\n\n /**\n * Register mouse up to detect release of mouse drag.\n */\n onMouseUp: function () {\n this.mouseDown = false;\n this.hideGrabbingCursor();\n },\n\n /**\n * Register touch down to detect touch drag.\n */\n onTouchStart: function (evt) {\n if (evt.touches.length !== 1 || !this.data.touchEnabled) { return; }\n this.touchStart = {\n x: evt.touches[0].pageX,\n y: evt.touches[0].pageY\n };\n this.touchStarted = true;\n },\n\n /**\n * Translate touch move to Y-axis rotation.\n */\n onTouchMove: function (evt) {\n var direction;\n var canvas = this.el.sceneEl.canvas;\n var deltaY;\n var yawObject = this.yawObject;\n\n if (!this.touchStarted || !this.data.touchEnabled) { return; }\n\n deltaY = 2 * Math.PI * (evt.touches[0].pageX - this.touchStart.x) / canvas.clientWidth;\n\n direction = this.data.reverseTouchDrag ? 1 : -1;\n // Limit touch orientaion to to yaw (y axis).\n yawObject.rotation.y -= deltaY * 0.5 * direction;\n this.touchStart = {\n x: evt.touches[0].pageX,\n y: evt.touches[0].pageY\n };\n },\n\n /**\n * Register touch end to detect release of touch drag.\n */\n onTouchEnd: function () {\n this.touchStarted = false;\n },\n\n /**\n * Save pose.\n */\n onEnterVR: function () {\n this.saveCameraPose();\n },\n\n /**\n * Restore the pose.\n */\n onExitVR: function () {\n this.restoreCameraPose();\n this.previousHMDPosition.set(0, 0, 0);\n },\n\n /**\n * Update Pointer Lock state.\n */\n onPointerLockChange: function () {\n this.pointerLocked = !!(document.pointerLockElement || document.mozPointerLockElement);\n },\n\n /**\n * Recover from Pointer Lock error.\n */\n onPointerLockError: function () {\n this.pointerLocked = false;\n },\n\n /**\n * Toggle the feature of showing/hiding the grab cursor.\n */\n updateGrabCursor: function (enabled) {\n var sceneEl = this.el.sceneEl;\n\n function enableGrabCursor () { sceneEl.canvas.classList.add('a-grab-cursor'); }\n function disableGrabCursor () { sceneEl.canvas.classList.remove('a-grab-cursor'); }\n\n if (!sceneEl.canvas) {\n if (enabled) {\n sceneEl.addEventListener('render-target-loaded', enableGrabCursor);\n } else {\n sceneEl.addEventListener('render-target-loaded', disableGrabCursor);\n }\n return;\n }\n\n if (enabled) {\n enableGrabCursor();\n return;\n }\n disableGrabCursor();\n },\n\n /**\n * Save camera pose before entering VR to restore later if exiting.\n */\n saveCameraPose: function () {\n var el = this.el;\n var hasPositionalTracking = this.hasPositionalTracking !== undefined\n ? this.hasPositionalTracking\n : checkHasPositionalTracking();\n\n if (this.hasSavedPose || !hasPositionalTracking) { return; }\n\n this.savedPose.position.copy(el.object3D.position);\n this.savedPose.rotation.copy(el.object3D.rotation);\n this.hasSavedPose = true;\n },\n\n /**\n * Reset camera pose to before entering VR.\n */\n restoreCameraPose: function () {\n var el = this.el;\n var savedPose = this.savedPose;\n var hasPositionalTracking = this.hasPositionalTracking !== undefined\n ? this.hasPositionalTracking\n : checkHasPositionalTracking();\n\n if (!this.hasSavedPose || !hasPositionalTracking) { return; }\n\n // Reset camera orientation.\n el.object3D.position.copy(savedPose.position);\n el.object3D.rotation.copy(savedPose.rotation);\n this.hasSavedPose = false;\n }\n});\n", "/* global Promise */\nvar utils = require('../utils/');\nvar component = require('../core/component');\nvar THREE = require('../lib/three');\nvar shader = require('../core/shader');\n\nvar error = utils.debug('components:material:error');\nvar registerComponent = component.registerComponent;\nvar shaders = shader.shaders;\nvar shaderNames = shader.shaderNames;\n\n/**\n * Material component.\n *\n * @member {object} shader - Determines how material is shaded. Defaults to `standard`,\n * three.js's implementation of PBR. Another standard shading model is `flat` which\n * uses MeshBasicMaterial.\n */\nmodule.exports.Component = registerComponent('material', {\n schema: {\n alphaTest: {default: 0.0, min: 0.0, max: 1.0},\n depthTest: {default: true},\n depthWrite: {default: true},\n flatShading: {default: false},\n npot: {default: false},\n offset: {type: 'vec2', default: {x: 0, y: 0}},\n opacity: {default: 1.0, min: 0.0, max: 1.0},\n repeat: {type: 'vec2', default: {x: 1, y: 1}},\n shader: {default: 'standard', oneOf: shaderNames},\n side: {default: 'front', oneOf: ['front', 'back', 'double']},\n transparent: {default: false},\n vertexColors: {type: 'string', default: 'none', oneOf: ['face', 'vertex']},\n visible: {default: true},\n blending: {default: 'normal', oneOf: ['none', 'normal', 'additive', 'subtractive', 'multiply']}\n },\n\n init: function () {\n this.material = null;\n },\n\n /**\n * Update or create material.\n *\n * @param {object|null} oldData\n */\n update: function (oldData) {\n var data = this.data;\n if (!this.shader || data.shader !== oldData.shader) {\n this.updateShader(data.shader);\n }\n this.shader.update(this.data);\n this.updateMaterial(oldData);\n },\n\n updateSchema: function (data) {\n var currentShader;\n var newShader;\n var schema;\n var shader;\n\n newShader = data && data.shader;\n currentShader = this.oldData && this.oldData.shader;\n shader = newShader || currentShader;\n schema = shaders[shader] && shaders[shader].schema;\n\n if (!schema) { error('Unknown shader schema ' + shader); }\n if (currentShader && newShader === currentShader) { return; }\n this.extendSchema(schema);\n this.updateBehavior();\n },\n\n updateBehavior: function () {\n var key;\n var sceneEl = this.el.sceneEl;\n var schema = this.schema;\n var self = this;\n var tickProperties;\n\n function tickTime (time, delta) {\n var key;\n for (key in tickProperties) {\n tickProperties[key] = time;\n }\n self.shader.update(tickProperties);\n }\n\n this.tick = undefined;\n\n tickProperties = {};\n for (key in schema) {\n if (schema[key].type === 'time') {\n this.tick = tickTime;\n tickProperties[key] = true;\n }\n }\n\n if (!sceneEl) { return; }\n if (this.tick) {\n sceneEl.addBehavior(this);\n } else {\n sceneEl.removeBehavior(this);\n }\n },\n\n updateShader: function (shaderName) {\n var data = this.data;\n var Shader = shaders[shaderName] && shaders[shaderName].Shader;\n var shaderInstance;\n\n if (!Shader) { throw new Error('Unknown shader ' + shaderName); }\n\n // Get material from A-Frame shader.\n shaderInstance = this.shader = new Shader();\n shaderInstance.el = this.el;\n shaderInstance.init(data);\n this.setMaterial(shaderInstance.material);\n this.updateSchema(data);\n },\n\n /**\n * Set and update base material properties.\n * Set `needsUpdate` when needed.\n */\n updateMaterial: function (oldData) {\n var data = this.data;\n var material = this.material;\n var oldDataHasKeys;\n\n // Base material properties.\n material.alphaTest = data.alphaTest;\n material.depthTest = data.depthTest !== false;\n material.depthWrite = data.depthWrite !== false;\n material.opacity = data.opacity;\n material.flatShading = data.flatShading;\n material.side = parseSide(data.side);\n material.transparent = data.transparent !== false || data.opacity < 1.0;\n material.vertexColors = parseVertexColors(data.vertexColors);\n material.visible = data.visible;\n material.blending = parseBlending(data.blending);\n\n // Check if material needs update.\n for (oldDataHasKeys in oldData) { break; }\n if (oldDataHasKeys &&\n (oldData.alphaTest !== data.alphaTest ||\n oldData.side !== data.side ||\n oldData.vertexColors !== data.vertexColors)) {\n material.needsUpdate = true;\n }\n },\n\n /**\n * Remove material on remove (callback).\n * Dispose of it from memory and unsubscribe from scene updates.\n */\n remove: function () {\n var defaultMaterial = new THREE.MeshBasicMaterial();\n var material = this.material;\n var object3D = this.el.getObject3D('mesh');\n if (object3D) { object3D.material = defaultMaterial; }\n disposeMaterial(material, this.system);\n },\n\n /**\n * (Re)create new material. Has side-effects of setting `this.material` and updating\n * material registration in scene.\n *\n * @param {object} data - Material component data.\n * @param {object} type - Material type to create.\n * @returns {object} Material.\n */\n setMaterial: function (material) {\n var el = this.el;\n var mesh;\n var system = this.system;\n\n if (this.material) { disposeMaterial(this.material, system); }\n\n this.material = material;\n system.registerMaterial(material);\n\n // Set on mesh. If mesh does not exist, wait for it.\n mesh = el.getObject3D('mesh');\n if (mesh) {\n mesh.material = material;\n } else {\n el.addEventListener('object3dset', function waitForMesh (evt) {\n if (evt.detail.type !== 'mesh' || evt.target !== el) { return; }\n el.getObject3D('mesh').material = material;\n el.removeEventListener('object3dset', waitForMesh);\n });\n }\n }\n});\n\n/**\n * Return a three.js constant determining which material face sides to render\n * based on the side parameter (passed as a component property).\n *\n * @param {string} [side=front] - `front`, `back`, or `double`.\n * @returns {number} THREE.FrontSide, THREE.BackSide, or THREE.DoubleSide.\n */\nfunction parseSide (side) {\n switch (side) {\n case 'back': {\n return THREE.BackSide;\n }\n case 'double': {\n return THREE.DoubleSide;\n }\n default: {\n // Including case `front`.\n return THREE.FrontSide;\n }\n }\n}\n\n/**\n * Return a three.js constant determining vertex coloring.\n */\nfunction parseVertexColors (coloring) {\n switch (coloring) {\n case 'face': {\n return THREE.FaceColors;\n }\n case 'vertex': {\n return THREE.VertexColors;\n }\n default: {\n return THREE.NoColors;\n }\n }\n}\n\n/**\n * Return a three.js constant determining blending\n *\n * @param {string} [blending=normal]\n * - `none`, additive`, `subtractive`,`multiply` or `normal`.\n * @returns {number}\n */\nfunction parseBlending (blending) {\n switch (blending) {\n case 'none': {\n return THREE.NoBlending;\n }\n case 'additive': {\n return THREE.AdditiveBlending;\n }\n case 'subtractive': {\n return THREE.SubtractiveBlending;\n }\n case 'multiply': {\n return THREE.MultiplyBlending;\n }\n default: {\n return THREE.NormalBlending;\n }\n }\n}\n\n/**\n * Dispose of material from memory and unsubscribe material from scene updates like fog.\n */\nfunction disposeMaterial (material, system) {\n material.dispose();\n system.unregisterMaterial(material);\n}\n", "var debug = require('../utils/debug');\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\nvar warn = debug('components:obj-model:warn');\n\nmodule.exports.Component = registerComponent('obj-model', {\n schema: {\n mtl: {type: 'model'},\n obj: {type: 'model'}\n },\n\n init: function () {\n this.model = null;\n this.objLoader = new THREE.OBJLoader();\n this.mtlLoader = new THREE.MTLLoader(this.objLoader.manager);\n // Allow cross-origin images to be loaded.\n this.mtlLoader.crossOrigin = '';\n },\n\n update: function () {\n var data = this.data;\n if (!data.obj) { return; }\n this.resetMesh();\n this.loadObj(data.obj, data.mtl);\n },\n\n remove: function () {\n if (!this.model) { return; }\n this.resetMesh();\n },\n\n resetMesh: function () {\n this.el.removeObject3D('mesh');\n },\n\n loadObj: function (objUrl, mtlUrl) {\n var self = this;\n var el = this.el;\n var mtlLoader = this.mtlLoader;\n var objLoader = this.objLoader;\n\n if (mtlUrl) {\n // .OBJ with an .MTL.\n if (el.hasAttribute('material')) {\n warn('Material component properties are ignored when a .MTL is provided');\n }\n mtlLoader.setTexturePath(mtlUrl.substr(0, mtlUrl.lastIndexOf('/') + 1));\n mtlLoader.load(mtlUrl, function (materials) {\n materials.preload();\n objLoader.setMaterials(materials);\n objLoader.load(objUrl, function (objModel) {\n self.model = objModel;\n el.setObject3D('mesh', objModel);\n el.emit('model-loaded', {format: 'obj', model: objModel});\n });\n });\n return;\n }\n\n // .OBJ only.\n objLoader.load(objUrl, function loadObjOnly (objModel) {\n // Apply material.\n var material = el.components.material;\n if (material) {\n objModel.traverse(function (child) {\n if (child instanceof THREE.Mesh) {\n child.material = material.material;\n }\n });\n }\n\n self.model = objModel;\n el.setObject3D('mesh', objModel);\n el.emit('model-loaded', {format: 'obj', model: objModel});\n });\n }\n});\n", "var registerComponent = require('../core/component').registerComponent;\nvar bind = require('../utils/bind');\nvar trackedControlsUtils = require('../utils/tracked-controls');\nvar checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;\nvar emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;\nvar onButtonEvent = trackedControlsUtils.onButtonEvent;\n\nvar GAMEPAD_ID_PREFIX = 'Oculus Go';\n\nvar OCULUS_GO_CONTROLLER_MODEL_URL = 'https://cdn.aframe.io/controllers/oculus/go/oculus-go-controller.gltf';\n\n/**\n * Oculus Go controls.\n * Interface with Oculus Go controller and map Gamepad events to\n * controller buttons: trackpad, trigger\n * Load a controller model and highlight the pressed buttons.\n */\nmodule.exports.Component = registerComponent('oculus-go-controls', {\n schema: {\n hand: {default: ''}, // This informs the degenerate arm model.\n buttonColor: {type: 'color', default: '#FFFFFF'},\n buttonTouchedColor: {type: 'color', default: '#BBBBBB'},\n buttonHighlightColor: {type: 'color', default: '#7A7A7A'},\n model: {default: true},\n rotationOffset: {default: 0},\n armModel: {default: true}\n },\n\n /**\n * Button IDs:\n * 0 - trackpad\n * 1 - trigger\n */\n mapping: {\n axes: {trackpad: [0, 1]},\n buttons: ['trackpad', 'trigger']\n },\n\n bindMethods: function () {\n this.onModelLoaded = bind(this.onModelLoaded, this);\n this.onControllersUpdate = bind(this.onControllersUpdate, this);\n this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);\n this.removeControllersUpdateListener = bind(this.removeControllersUpdateListener, this);\n this.onAxisMoved = bind(this.onAxisMoved, this);\n },\n\n init: function () {\n var self = this;\n this.animationActive = 'pointing';\n this.onButtonChanged = bind(this.onButtonChanged, this);\n this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };\n this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };\n this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };\n this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };\n this.onAxisMoved = bind(this.onAxisMoved, this);\n this.controllerPresent = false;\n this.lastControllerCheck = 0;\n this.bindMethods();\n this.checkControllerPresentAndSetup = checkControllerPresentAndSetup; // To allow mock.\n this.emitIfAxesChanged = emitIfAxesChanged; // To allow mock.\n },\n\n addEventListeners: function () {\n var el = this.el;\n el.addEventListener('buttonchanged', this.onButtonChanged);\n el.addEventListener('buttondown', this.onButtonDown);\n el.addEventListener('buttonup', this.onButtonUp);\n el.addEventListener('touchstart', this.onButtonTouchStart);\n el.addEventListener('touchend', this.onButtonTouchEnd);\n el.addEventListener('model-loaded', this.onModelLoaded);\n el.addEventListener('axismove', this.onAxisMoved);\n this.controllerEventsActive = true;\n },\n\n removeEventListeners: function () {\n var el = this.el;\n el.removeEventListener('buttonchanged', this.onButtonChanged);\n el.removeEventListener('buttondown', this.onButtonDown);\n el.removeEventListener('buttonup', this.onButtonUp);\n el.removeEventListener('touchstart', this.onButtonTouchStart);\n el.removeEventListener('touchend', this.onButtonTouchEnd);\n el.removeEventListener('model-loaded', this.onModelLoaded);\n el.removeEventListener('axismove', this.onAxisMoved);\n this.controllerEventsActive = false;\n },\n\n checkIfControllerPresent: function () {\n this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX,\n this.data.hand ? {hand: this.data.hand} : {});\n },\n\n play: function () {\n this.checkIfControllerPresent();\n this.addControllersUpdateListener();\n },\n\n pause: function () {\n this.removeEventListeners();\n this.removeControllersUpdateListener();\n },\n\n injectTrackedControls: function () {\n var el = this.el;\n var data = this.data;\n el.setAttribute('tracked-controls', {\n armModel: data.armModel,\n idPrefix: GAMEPAD_ID_PREFIX,\n rotationOffset: data.rotationOffset\n });\n if (!this.data.model) { return; }\n this.el.setAttribute('gltf-model', OCULUS_GO_CONTROLLER_MODEL_URL);\n },\n\n addControllersUpdateListener: function () {\n this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);\n },\n\n removeControllersUpdateListener: function () {\n this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);\n },\n\n onControllersUpdate: function () {\n this.checkIfControllerPresent();\n },\n\n // No need for onButtonChanged, since Oculus Go controller has no analog buttons.\n\n onModelLoaded: function (evt) {\n var controllerObject3D = evt.detail.model;\n var buttonMeshes;\n\n if (!this.data.model) { return; }\n buttonMeshes = this.buttonMeshes = {};\n buttonMeshes.trigger = controllerObject3D.getObjectByName('oculus_go_button_trigger');\n buttonMeshes.trackpad = controllerObject3D.getObjectByName('oculus_go_touchpad');\n },\n\n onButtonChanged: function (evt) {\n var button = this.mapping.buttons[evt.detail.id];\n if (!button) return;\n // Pass along changed event with button state, using button mapping for convenience.\n this.el.emit(button + 'changed', evt.detail.state);\n },\n\n onAxisMoved: function (evt) {\n this.emitIfAxesChanged(this, this.mapping.axes, evt);\n },\n\n updateModel: function (buttonName, evtName) {\n if (!this.data.model) { return; }\n this.updateButtonModel(buttonName, evtName);\n },\n\n updateButtonModel: function (buttonName, state) {\n var buttonMeshes = this.buttonMeshes;\n if (!buttonMeshes || !buttonMeshes[buttonName]) { return; }\n var color;\n switch (state) {\n case 'down':\n color = this.data.buttonHighlightColor;\n break;\n case 'touchstart':\n color = this.data.buttonTouchedColor;\n break;\n default:\n color = this.data.buttonColor;\n }\n buttonMeshes[buttonName].material.color.set(color);\n }\n});\n", "var bind = require('../utils/bind');\nvar registerComponent = require('../core/component').registerComponent;\nvar trackedControlsUtils = require('../utils/tracked-controls');\nvar THREE = require('../lib/three');\nvar onButtonEvent = trackedControlsUtils.onButtonEvent;\n\nvar TOUCH_CONTROLLER_MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/oculus/oculus-touch-controller-';\nvar TOUCH_CONTROLLER_MODEL_URL = {\n left: TOUCH_CONTROLLER_MODEL_BASE_URL + 'left.gltf',\n right: TOUCH_CONTROLLER_MODEL_BASE_URL + 'right.gltf'\n};\n\nvar GAMEPAD_ID_PREFIX = 'Oculus Touch';\n\nvar DEFAULT_MODEL_PIVOT_OFFSET = new THREE.Vector3(0, 0, -0.053);\nvar RAY_ORIGIN = {\n left: {origin: {x: 0.008, y: -0.004, z: 0}, direction: {x: 0, y: -0.8, z: -1}},\n right: {origin: {x: -0.008, y: -0.004, z: 0}, direction: {x: 0, y: -0.8, z: -1}}\n};\n\n/**\n * Oculus Touch controls.\n * Interface with Oculus Touch controllers and map Gamepad events to\n * controller buttons: thumbstick, trigger, grip, xbutton, ybutton, surface\n * Load a controller model and highlight the pressed buttons.\n */\nmodule.exports.Component = registerComponent('oculus-touch-controls', {\n schema: {\n hand: {default: 'left'},\n buttonColor: {type: 'color', default: '#999'}, // Off-white.\n buttonTouchColor: {type: 'color', default: '#8AB'},\n buttonHighlightColor: {type: 'color', default: '#2DF'}, // Light blue.\n model: {default: true},\n orientationOffset: {type: 'vec3', default: {x: 43, y: 0, z: 0}}\n },\n\n /**\n * Button IDs:\n * 0 - thumbstick (which has separate axismove / thumbstickmoved events)\n * 1 - trigger (with analog value, which goes up to 1)\n * 2 - grip (with analog value, which goes up to 1)\n * 3 - X (left) or A (right)\n * 4 - Y (left) or B (right)\n * 5 - surface (touch only)\n */\n mapping: {\n left: {\n axes: {thumbstick: [0, 1]},\n buttons: ['thumbstick', 'trigger', 'grip', 'xbutton', 'ybutton', 'surface']\n },\n right: {\n axes: {thumbstick: [0, 1]},\n buttons: ['thumbstick', 'trigger', 'grip', 'abutton', 'bbutton', 'surface']\n }\n },\n\n bindMethods: function () {\n this.onModelLoaded = bind(this.onModelLoaded, this);\n this.onControllersUpdate = bind(this.onControllersUpdate, this);\n this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);\n this.onAxisMoved = bind(this.onAxisMoved, this);\n },\n\n init: function () {\n var self = this;\n this.onButtonChanged = bind(this.onButtonChanged, this);\n this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self, self.data.hand); };\n this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self, self.data.hand); };\n this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self, self.data.hand); };\n this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self, self.data.hand); };\n this.controllerPresent = false;\n this.lastControllerCheck = 0;\n this.previousButtonValues = {};\n this.bindMethods();\n\n // Allow mock.\n this.emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;\n this.checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;\n },\n\n addEventListeners: function () {\n var el = this.el;\n el.addEventListener('buttonchanged', this.onButtonChanged);\n el.addEventListener('buttondown', this.onButtonDown);\n el.addEventListener('buttonup', this.onButtonUp);\n el.addEventListener('touchstart', this.onButtonTouchStart);\n el.addEventListener('touchend', this.onButtonTouchEnd);\n el.addEventListener('axismove', this.onAxisMoved);\n el.addEventListener('model-loaded', this.onModelLoaded);\n this.controllerEventsActive = true;\n },\n\n removeEventListeners: function () {\n var el = this.el;\n el.removeEventListener('buttonchanged', this.onButtonChanged);\n el.removeEventListener('buttondown', this.onButtonDown);\n el.removeEventListener('buttonup', this.onButtonUp);\n el.removeEventListener('touchstart', this.onButtonTouchStart);\n el.removeEventListener('touchend', this.onButtonTouchEnd);\n el.removeEventListener('axismove', this.onAxisMoved);\n el.removeEventListener('model-loaded', this.onModelLoaded);\n this.controllerEventsActive = false;\n },\n\n checkIfControllerPresent: function () {\n this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {\n hand: this.data.hand\n });\n },\n\n play: function () {\n this.checkIfControllerPresent();\n this.addControllersUpdateListener();\n },\n\n pause: function () {\n this.removeEventListeners();\n this.removeControllersUpdateListener();\n },\n\n loadModel: function () {\n var data = this.data;\n if (!data.model) { return; }\n this.el.setAttribute('gltf-model', 'url(' + TOUCH_CONTROLLER_MODEL_URL[data.hand] + ')');\n },\n\n injectTrackedControls: function () {\n var data = this.data;\n this.el.setAttribute('tracked-controls', {\n id: data.hand === 'right' ? 'Oculus Touch (Right)' : 'Oculus Touch (Left)',\n controller: 0,\n orientationOffset: data.orientationOffset\n });\n this.loadModel();\n },\n\n addControllersUpdateListener: function () {\n this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);\n },\n\n removeControllersUpdateListener: function () {\n this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);\n },\n\n onControllersUpdate: function () {\n // Note that due to gamepadconnected event propagation issues, we don't rely on events.\n this.checkIfControllerPresent();\n },\n\n onButtonChanged: function (evt) {\n var button = this.mapping[this.data.hand].buttons[evt.detail.id];\n var buttonMeshes = this.buttonMeshes;\n var analogValue;\n\n if (!button) { return; }\n\n if (button === 'trigger' || button === 'grip') { analogValue = evt.detail.state.value; }\n\n // Update trigger and/or grip meshes, if any.\n if (buttonMeshes) {\n if (button === 'trigger' && buttonMeshes.trigger) {\n buttonMeshes.trigger.rotation.x = -analogValue * (Math.PI / 24);\n }\n if (button === 'grip' && buttonMeshes.grip) {\n buttonMeshes.grip.rotation.y = (this.data.hand === 'left' ? -1 : 1) * analogValue * (Math.PI / 60);\n }\n }\n\n // Pass along changed event with button state, using the buttom mapping for convenience.\n this.el.emit(button + 'changed', evt.detail.state);\n },\n\n onModelLoaded: function (evt) {\n var controllerObject3D = evt.detail.model;\n var buttonMeshes;\n if (!this.data.model) { return; }\n\n var leftHand = this.data.hand === 'left';\n buttonMeshes = this.buttonMeshes = {};\n\n buttonMeshes.grip = controllerObject3D.getObjectByName(leftHand ? 'buttonHand_oculus-touch-controller-left.004' : 'buttonHand_oculus-touch-controller-right.005');\n buttonMeshes.thumbstick = controllerObject3D.getObjectByName(leftHand ? 'stick_oculus-touch-controller-left.007' : 'stick_oculus-touch-controller-right.004');\n buttonMeshes.trigger = controllerObject3D.getObjectByName(leftHand ? 'buttonTrigger_oculus-touch-controller-left.005' : 'buttonTrigger_oculus-touch-controller-right.006');\n buttonMeshes.xbutton = controllerObject3D.getObjectByName('buttonX_oculus-touch-controller-left.002');\n buttonMeshes.abutton = controllerObject3D.getObjectByName('buttonA_oculus-touch-controller-right.002');\n buttonMeshes.ybutton = controllerObject3D.getObjectByName('buttonY_oculus-touch-controller-left.001');\n buttonMeshes.bbutton = controllerObject3D.getObjectByName('buttonB_oculus-touch-controller-right.003');\n\n // Offset pivot point\n controllerObject3D.position.copy(DEFAULT_MODEL_PIVOT_OFFSET);\n\n this.el.emit('controllermodelready', {\n name: 'oculus-touch-controls',\n model: this.data.model,\n rayOrigin: RAY_ORIGIN[this.data.hand]\n });\n },\n\n onAxisMoved: function (evt) {\n this.emitIfAxesChanged(this, this.mapping[this.data.hand].axes, evt);\n },\n\n updateModel: function (buttonName, evtName) {\n if (!this.data.model) { return; }\n this.updateButtonModel(buttonName, evtName);\n },\n\n updateButtonModel: function (buttonName, state) {\n var color = (state === 'up' || state === 'touchend') ? this.data.buttonColor : state === 'touchstart' ? this.data.buttonTouchColor : this.data.buttonHighlightColor;\n var buttonMeshes = this.buttonMeshes;\n if (!this.data.model) { return; }\n if (buttonMeshes && buttonMeshes[buttonName]) {\n buttonMeshes[buttonName].material.color.set(color);\n }\n }\n});\n", "var registerComponent = require('../core/component').registerComponent;\n\nmodule.exports.Component = registerComponent('position', {\n schema: {type: 'vec3'},\n\n update: function () {\n var object3D = this.el.object3D;\n var data = this.data;\n object3D.position.set(data.x, data.y, data.z);\n },\n\n remove: function () {\n // Pretty much for mixins.\n this.el.object3D.position.set(0, 0, 0);\n }\n});\n", - "/* global MutationObserver */\n\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar warn = utils.debug('components:raycaster:warn');\n\n// Defines selectors that should be 'safe' for the MutationObserver used to\n// refresh the whitelist. Matches classnames, IDs, and presence of attributes.\n// Selectors for the value of an attribute, like [position=0 2 0], cannot be\n// reliably detected and are therefore disallowed.\nvar OBSERVER_SELECTOR_RE = /^[\\w\\s-.,[\\]#]*$/;\n\n// Configuration for the MutationObserver used to refresh the whitelist.\n// Listens for addition/removal of elements and attributes within the scene.\nvar OBSERVER_CONFIG = {\n childList: true,\n attributes: true,\n subtree: true\n};\n\nvar EVENTS = {\n INTERSECT: 'raycaster-intersected',\n INTERSECTION: 'raycaster-intersection',\n INTERSECT_CLEAR: 'raycaster-intersected-cleared',\n INTERSECTION_CLEAR: 'raycaster-intersection-cleared'\n};\n\n/**\n * Raycaster component.\n *\n * Pass options to three.js Raycaster including which objects to test.\n * Poll for intersections.\n * Emit event on origin entity and on target entity on intersect.\n *\n * @member {array} intersectedEls - List of currently intersected entities.\n * @member {array} objects - Cached list of meshes to intersect.\n * @member {number} prevCheckTime - Previous time intersection was checked. To help interval.\n * @member {object} raycaster - three.js Raycaster.\n */\nmodule.exports.Component = registerComponent('raycaster', {\n schema: {\n autoRefresh: {default: true},\n direction: {type: 'vec3', default: {x: 0, y: 0, z: -1}},\n enabled: {default: true},\n far: {default: 1000},\n interval: {default: 0},\n near: {default: 0},\n objects: {default: ''},\n origin: {type: 'vec3'},\n recursive: {default: true},\n showLine: {default: false},\n useWorldCoordinates: {default: false}\n },\n\n init: function () {\n this.clearedIntersectedEls = [];\n this.unitLineEndVec3 = new THREE.Vector3();\n this.intersectedEls = [];\n this.intersections = [];\n this.newIntersectedEls = [];\n this.newIntersections = [];\n this.objects = [];\n this.prevCheckTime = undefined;\n this.prevIntersectedEls = [];\n this.rawIntersections = [];\n this.raycaster = new THREE.Raycaster();\n this.updateOriginDirection();\n this.setDirty = this.setDirty.bind(this);\n this.updateLine = this.updateLine.bind(this);\n this.observer = new MutationObserver(this.setDirty);\n this.dirty = true;\n this.lineEndVec3 = new THREE.Vector3();\n this.otherLineEndVec3 = new THREE.Vector3();\n this.lineData = {end: this.lineEndVec3};\n\n this.getIntersection = this.getIntersection.bind(this);\n this.intersectedDetail = {el: this.el, getIntersection: this.getIntersection};\n this.intersectedClearedDetail = {el: this.el};\n this.intersectionClearedDetail = {clearedEls: this.clearedIntersectedEls};\n this.intersectionDetail = {};\n },\n\n /**\n * Create or update raycaster object.\n */\n update: function (oldData) {\n var data = this.data;\n var el = this.el;\n var raycaster = this.raycaster;\n\n // Set raycaster properties.\n raycaster.far = data.far;\n raycaster.near = data.near;\n\n // Draw line.\n if (data.showLine &&\n (data.far !== oldData.far || data.origin !== oldData.origin ||\n data.direction !== oldData.direction || !oldData.showLine)) {\n // Calculate unit vector for line direction. Can be multiplied via scalar to performantly\n // adjust line length.\n this.unitLineEndVec3.copy(data.origin).add(data.direction).normalize();\n this.drawLine();\n }\n\n if (!data.showLine && oldData.showLine) {\n el.removeAttribute('line');\n }\n\n if (data.objects !== oldData.objects && !OBSERVER_SELECTOR_RE.test(data.objects)) {\n warn('Selector \"' + data.objects + '\" may not update automatically with DOM changes.');\n }\n\n if (data.autoRefresh !== oldData.autoRefresh && el.isPlaying) {\n data.autoRefresh\n ? this.addEventListeners()\n : this.removeEventListeners();\n }\n\n if (oldData.enabled && !data.enabled) { this.clearAllIntersections(); }\n\n this.setDirty();\n },\n\n play: function () {\n this.addEventListeners();\n },\n\n pause: function () {\n this.removeEventListeners();\n },\n\n remove: function () {\n if (this.data.showLine) {\n this.el.removeAttribute('line');\n }\n this.clearAllIntersections();\n },\n\n addEventListeners: function () {\n if (!this.data.autoRefresh) { return; }\n this.observer.observe(this.el.sceneEl, OBSERVER_CONFIG);\n this.el.sceneEl.addEventListener('object3dset', this.setDirty);\n this.el.sceneEl.addEventListener('object3dremove', this.setDirty);\n },\n\n removeEventListeners: function () {\n this.observer.disconnect();\n this.el.sceneEl.removeEventListener('object3dset', this.setDirty);\n this.el.sceneEl.removeEventListener('object3dremove', this.setDirty);\n },\n\n /**\n * Mark the object list as dirty, to be refreshed before next raycast.\n */\n setDirty: function () {\n this.dirty = true;\n },\n\n /**\n * Update list of objects to test for intersection.\n */\n refreshObjects: function () {\n var data = this.data;\n var els;\n\n // If objects not defined, intersect with everything.\n els = data.objects\n ? this.el.sceneEl.querySelectorAll(data.objects)\n : this.el.sceneEl.children;\n this.objects = this.flattenObject3DMaps(els);\n this.dirty = false;\n },\n\n /**\n * Check for intersections and cleared intersections on an interval.\n */\n tick: function (time) {\n var data = this.data;\n var prevCheckTime = this.prevCheckTime;\n\n // Only check for intersection if interval time has passed.\n if (prevCheckTime && (time - prevCheckTime < data.interval)) { return; }\n\n // Update check time.\n this.prevCheckTime = time;\n this.checkIntersections();\n },\n\n /**\n * Raycast for intersections and emit events for current and cleared inersections.\n */\n checkIntersections: function () {\n var clearedIntersectedEls = this.clearedIntersectedEls;\n var el = this.el;\n var data = this.data;\n var i;\n var intersectedEls = this.intersectedEls;\n var intersection;\n var intersections = this.intersections;\n var newIntersectedEls = this.newIntersectedEls;\n var newIntersections = this.newIntersections;\n var prevIntersectedEls = this.prevIntersectedEls;\n var rawIntersections = this.rawIntersections;\n\n if (!this.data.enabled) { return; }\n\n // Refresh the object whitelist if needed.\n if (this.dirty) { this.refreshObjects(); }\n\n // Store old previously intersected entities.\n copyArray(this.prevIntersectedEls, this.intersectedEls);\n\n // Raycast.\n this.updateOriginDirection();\n rawIntersections.length = 0;\n this.raycaster.intersectObjects(this.objects, data.recursive, rawIntersections);\n\n // Only keep intersections against objects that have a reference to an entity.\n intersections.length = 0;\n intersectedEls.length = 0;\n for (i = 0; i < rawIntersections.length; i++) {\n intersection = rawIntersections[i];\n // Don't intersect with own line.\n if (data.showLine && intersection.object === el.getObject3D('line')) {\n continue;\n }\n if (intersection.object.el) {\n intersections.push(intersection);\n intersectedEls.push(intersection.object.el);\n }\n }\n\n // Get newly intersected entities.\n newIntersections.length = 0;\n newIntersectedEls.length = 0;\n for (i = 0; i < intersections.length; i++) {\n if (prevIntersectedEls.indexOf(intersections[i].object.el) === -1) {\n newIntersections.push(intersections[i]);\n newIntersectedEls.push(intersections[i].object.el);\n }\n }\n\n // Emit intersection cleared on both entities per formerly intersected entity.\n clearedIntersectedEls.length = 0;\n for (i = 0; i < prevIntersectedEls.length; i++) {\n if (intersectedEls.indexOf(prevIntersectedEls[i]) !== -1) { continue; }\n prevIntersectedEls[i].emit(EVENTS.INTERSECT_CLEAR,\n this.intersectedClearedDetail);\n clearedIntersectedEls.push(prevIntersectedEls[i]);\n }\n if (clearedIntersectedEls.length) {\n el.emit(EVENTS.INTERSECTION_CLEAR, this.intersectionClearedDetail);\n }\n\n // Emit intersected on intersected entity per intersected entity.\n for (i = 0; i < newIntersectedEls.length; i++) {\n newIntersectedEls[i].emit(EVENTS.INTERSECT, this.intersectedDetail);\n }\n\n // Emit all intersections at once on raycasting entity.\n if (newIntersections.length) {\n this.intersectionDetail.els = newIntersectedEls;\n this.intersectionDetail.intersections = newIntersections;\n el.emit(EVENTS.INTERSECTION, this.intersectionDetail);\n }\n\n // Update line length.\n setTimeout(this.updateLine);\n },\n\n updateLine: function () {\n var el = this.el;\n var intersections = this.intersections;\n var lineLength;\n\n if (this.data.showLine) {\n if (intersections.length) {\n if (intersections[0].object.el === el && intersections[1]) {\n lineLength = intersections[1].distance;\n } else {\n lineLength = intersections[0].distance;\n }\n }\n this.drawLine(lineLength);\n }\n },\n\n /**\n * Return the most recent intersection details for a given entity, if any.\n * @param {AEntity} el\n * @return {Object}\n */\n getIntersection: function (el) {\n var i;\n var intersection;\n for (i = 0; i < this.intersections.length; i++) {\n intersection = this.intersections[i];\n if (intersection.object.el === el) { return intersection; }\n }\n return null;\n },\n\n /**\n * Update origin and direction of raycaster using entity transforms and supplied origin or\n * direction offsets.\n */\n updateOriginDirection: (function () {\n var direction = new THREE.Vector3();\n var originVec3 = new THREE.Vector3();\n\n // Closure to make quaternion/vector3 objects private.\n return function updateOriginDirection () {\n var el = this.el;\n var data = this.data;\n\n if (data.useWorldCoordinates) {\n this.raycaster.set(data.origin, data.direction);\n return;\n }\n\n // Grab the position and rotation. (As a side effect, this updates el.object3D.matrixWorld.)\n el.object3D.getWorldPosition(originVec3);\n\n // If non-zero origin, translate the origin into world space.\n if (data.origin.x !== 0 || data.origin.y !== 0 || data.origin.z !== 0) {\n originVec3 = el.object3D.localToWorld(originVec3.copy(data.origin));\n }\n\n // three.js raycaster direction is relative to 0, 0, 0 NOT the origin / offset we\n // provide. Apply the offset to the direction, then rotation from the object,\n // and normalize.\n direction.copy(data.direction).transformDirection(el.object3D.matrixWorld).normalize();\n\n // Apply offset and direction, in world coordinates.\n this.raycaster.set(originVec3, direction);\n };\n })(),\n\n /**\n * Create or update line to give raycaster visual representation.\n * Customize the line through through line component.\n * We draw the line in the raycaster component to customize the line to the\n * raycaster's origin, direction, and far.\n *\n * Unlike the raycaster, we create the line as a child of the object. The line will\n * be affected by the transforms of the objects, so we don't have to calculate transforms\n * like we do with the raycaster.\n *\n * @param {number} length - Length of line. Pass in to shorten the line to the intersection\n * point. If not provided, length will default to the max length, `raycaster.far`.\n */\n drawLine: function (length) {\n var data = this.data;\n var el = this.el;\n var endVec3;\n\n // Switch each time vector so line update triggered and to avoid unnecessary vector clone.\n endVec3 = this.lineData.end === this.lineEndVec3\n ? this.otherLineEndVec3\n : this.lineEndVec3;\n\n // Treat Infinity as 1000m for the line.\n if (length === undefined) {\n length = data.far === Infinity ? 1000 : data.far;\n }\n\n // Update the length of the line if given. `unitLineEndVec3` is the direction\n // given by data.direction, then we apply a scalar to give it a length.\n this.lineData.start = data.origin;\n this.lineData.end = endVec3.copy(this.unitLineEndVec3).multiplyScalar(length);\n el.setAttribute('line', this.lineData);\n },\n\n /**\n * Return A-Frame attachments of each element's object3D group (e.g., mesh).\n * Children are flattened by one level, removing the THREE.Group wrapper,\n * so that non-recursive raycasting remains useful.\n *\n * Only push children defined as component attachemnts (e.g., setObject3D),\n * not actual children in the scene graph hierarchy.\n *\n * @param {Array} els\n * @return {Array}\n */\n flattenObject3DMaps: function (els) {\n var key;\n var i;\n var objects = this.objects;\n\n // Push meshes and other attachments onto list of objects to intersect.\n objects.length = 0;\n for (i = 0; i < els.length; i++) {\n if (els[i].object3D) {\n for (key in els[i].object3DMap) {\n objects.push(els[i].getObject3D(key));\n }\n }\n }\n\n return objects;\n },\n\n clearAllIntersections: function () {\n var i;\n for (i = 0; i < this.intersectedEls.length; i++) {\n this.intersectedEls[i].emit(EVENTS.INTERSECT_CLEAR,\n this.intersectedClearedDetail);\n }\n copyArray(this.clearedIntersectedEls, this.intersectedEls);\n this.intersectedEls.length = 0;\n this.intersections.length = 0;\n this.el.emit(EVENTS.INTERSECTION_CLEAR, this.intersectionClearedDetail);\n }\n});\n\n/**\n * Copy contents of one array to another without allocating new array.\n */\nfunction copyArray (a, b) {\n var i;\n a.length = b.length;\n for (i = 0; i < b.length; i++) {\n a[i] = b[i];\n }\n}\n", + "/* global MutationObserver */\n\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar warn = utils.debug('components:raycaster:warn');\n\n// Defines selectors that should be 'safe' for the MutationObserver used to\n// refresh the whitelist. Matches classnames, IDs, and presence of attributes.\n// Selectors for the value of an attribute, like [position=0 2 0], cannot be\n// reliably detected and are therefore disallowed.\nvar OBSERVER_SELECTOR_RE = /^[\\w\\s-.,[\\]#]*$/;\n\n// Configuration for the MutationObserver used to refresh the whitelist.\n// Listens for addition/removal of elements and attributes within the scene.\nvar OBSERVER_CONFIG = {\n childList: true,\n attributes: true,\n subtree: true\n};\n\nvar EVENTS = {\n INTERSECT: 'raycaster-intersected',\n INTERSECTION: 'raycaster-intersection',\n INTERSECT_CLEAR: 'raycaster-intersected-cleared',\n INTERSECTION_CLEAR: 'raycaster-intersection-cleared'\n};\n\n/**\n * Raycaster component.\n *\n * Pass options to three.js Raycaster including which objects to test.\n * Poll for intersections.\n * Emit event on origin entity and on target entity on intersect.\n *\n * @member {array} intersectedEls - List of currently intersected entities.\n * @member {array} objects - Cached list of meshes to intersect.\n * @member {number} prevCheckTime - Previous time intersection was checked. To help interval.\n * @member {object} raycaster - three.js Raycaster.\n */\nmodule.exports.Component = registerComponent('raycaster', {\n schema: {\n autoRefresh: {default: true},\n direction: {type: 'vec3', default: {x: 0, y: 0, z: -1}},\n enabled: {default: true},\n far: {default: 1000},\n interval: {default: 0},\n near: {default: 0},\n objects: {default: ''},\n origin: {type: 'vec3'},\n recursive: {default: true},\n showLine: {default: false},\n useWorldCoordinates: {default: false}\n },\n\n multiple: true,\n\n init: function () {\n this.clearedIntersectedEls = [];\n this.unitLineEndVec3 = new THREE.Vector3();\n this.intersectedEls = [];\n this.intersections = [];\n this.newIntersectedEls = [];\n this.newIntersections = [];\n this.objects = [];\n this.prevCheckTime = undefined;\n this.prevIntersectedEls = [];\n this.rawIntersections = [];\n this.raycaster = new THREE.Raycaster();\n this.updateOriginDirection();\n this.setDirty = this.setDirty.bind(this);\n this.updateLine = this.updateLine.bind(this);\n this.observer = new MutationObserver(this.setDirty);\n this.dirty = true;\n this.lineEndVec3 = new THREE.Vector3();\n this.otherLineEndVec3 = new THREE.Vector3();\n this.lineData = {end: this.lineEndVec3};\n\n this.getIntersection = this.getIntersection.bind(this);\n this.intersectedDetail = {el: this.el, getIntersection: this.getIntersection};\n this.intersectedClearedDetail = {el: this.el};\n this.intersectionClearedDetail = {clearedEls: this.clearedIntersectedEls};\n this.intersectionDetail = {};\n },\n\n /**\n * Create or update raycaster object.\n */\n update: function (oldData) {\n var data = this.data;\n var el = this.el;\n var raycaster = this.raycaster;\n\n // Set raycaster properties.\n raycaster.far = data.far;\n raycaster.near = data.near;\n\n // Draw line.\n if (data.showLine &&\n (data.far !== oldData.far || data.origin !== oldData.origin ||\n data.direction !== oldData.direction || !oldData.showLine)) {\n // Calculate unit vector for line direction. Can be multiplied via scalar to performantly\n // adjust line length.\n this.unitLineEndVec3.copy(data.origin).add(data.direction).normalize();\n this.drawLine();\n }\n\n if (!data.showLine && oldData.showLine) {\n el.removeAttribute('line');\n }\n\n if (data.objects !== oldData.objects && !OBSERVER_SELECTOR_RE.test(data.objects)) {\n warn('[raycaster] Selector \"' + data.objects +\n '\" may not update automatically with DOM changes.');\n }\n\n if (!data.objects) {\n warn('[raycaster] For performance, please define raycaster.objects when using ' +\n 'raycaster or cursor components to whitelist which entities to intersect with. ' +\n 'e.g., raycaster=\"objects: [data-raycastable]\".');\n }\n\n if (data.autoRefresh !== oldData.autoRefresh && el.isPlaying) {\n data.autoRefresh\n ? this.addEventListeners()\n : this.removeEventListeners();\n }\n\n if (oldData.enabled && !data.enabled) { this.clearAllIntersections(); }\n\n this.setDirty();\n },\n\n play: function () {\n this.addEventListeners();\n },\n\n pause: function () {\n this.removeEventListeners();\n },\n\n remove: function () {\n if (this.data.showLine) {\n this.el.removeAttribute('line');\n }\n this.clearAllIntersections();\n },\n\n addEventListeners: function () {\n if (!this.data.autoRefresh) { return; }\n this.observer.observe(this.el.sceneEl, OBSERVER_CONFIG);\n this.el.sceneEl.addEventListener('object3dset', this.setDirty);\n this.el.sceneEl.addEventListener('object3dremove', this.setDirty);\n },\n\n removeEventListeners: function () {\n this.observer.disconnect();\n this.el.sceneEl.removeEventListener('object3dset', this.setDirty);\n this.el.sceneEl.removeEventListener('object3dremove', this.setDirty);\n },\n\n /**\n * Mark the object list as dirty, to be refreshed before next raycast.\n */\n setDirty: function () {\n this.dirty = true;\n },\n\n /**\n * Update list of objects to test for intersection.\n */\n refreshObjects: function () {\n var data = this.data;\n var els;\n\n // If objects not defined, intersect with everything.\n els = data.objects\n ? this.el.sceneEl.querySelectorAll(data.objects)\n : this.el.sceneEl.children;\n this.objects = this.flattenObject3DMaps(els);\n this.dirty = false;\n },\n\n /**\n * Check for intersections and cleared intersections on an interval.\n */\n tick: function (time) {\n var data = this.data;\n var prevCheckTime = this.prevCheckTime;\n\n if (!data.enabled) { return; }\n\n // Only check for intersection if interval time has passed.\n if (prevCheckTime && (time - prevCheckTime < data.interval)) { return; }\n\n // Update check time.\n this.prevCheckTime = time;\n this.checkIntersections();\n },\n\n /**\n * Raycast for intersections and emit events for current and cleared inersections.\n */\n checkIntersections: function () {\n var clearedIntersectedEls = this.clearedIntersectedEls;\n var el = this.el;\n var data = this.data;\n var i;\n var intersectedEls = this.intersectedEls;\n var intersection;\n var intersections = this.intersections;\n var newIntersectedEls = this.newIntersectedEls;\n var newIntersections = this.newIntersections;\n var prevIntersectedEls = this.prevIntersectedEls;\n var rawIntersections = this.rawIntersections;\n\n // Refresh the object whitelist if needed.\n if (this.dirty) { this.refreshObjects(); }\n\n // Store old previously intersected entities.\n copyArray(this.prevIntersectedEls, this.intersectedEls);\n\n // Raycast.\n this.updateOriginDirection();\n rawIntersections.length = 0;\n this.raycaster.intersectObjects(this.objects, data.recursive, rawIntersections);\n\n // Only keep intersections against objects that have a reference to an entity.\n intersections.length = 0;\n intersectedEls.length = 0;\n for (i = 0; i < rawIntersections.length; i++) {\n intersection = rawIntersections[i];\n // Don't intersect with own line.\n if (data.showLine && intersection.object === el.getObject3D('line')) {\n continue;\n }\n if (intersection.object.el) {\n intersections.push(intersection);\n intersectedEls.push(intersection.object.el);\n }\n }\n\n // Get newly intersected entities.\n newIntersections.length = 0;\n newIntersectedEls.length = 0;\n for (i = 0; i < intersections.length; i++) {\n if (prevIntersectedEls.indexOf(intersections[i].object.el) === -1) {\n newIntersections.push(intersections[i]);\n newIntersectedEls.push(intersections[i].object.el);\n }\n }\n\n // Emit intersection cleared on both entities per formerly intersected entity.\n clearedIntersectedEls.length = 0;\n for (i = 0; i < prevIntersectedEls.length; i++) {\n if (intersectedEls.indexOf(prevIntersectedEls[i]) !== -1) { continue; }\n prevIntersectedEls[i].emit(EVENTS.INTERSECT_CLEAR,\n this.intersectedClearedDetail);\n clearedIntersectedEls.push(prevIntersectedEls[i]);\n }\n if (clearedIntersectedEls.length) {\n el.emit(EVENTS.INTERSECTION_CLEAR, this.intersectionClearedDetail);\n }\n\n // Emit intersected on intersected entity per intersected entity.\n for (i = 0; i < newIntersectedEls.length; i++) {\n newIntersectedEls[i].emit(EVENTS.INTERSECT, this.intersectedDetail);\n }\n\n // Emit all intersections at once on raycasting entity.\n if (newIntersections.length) {\n this.intersectionDetail.els = newIntersectedEls;\n this.intersectionDetail.intersections = newIntersections;\n el.emit(EVENTS.INTERSECTION, this.intersectionDetail);\n }\n\n // Update line length.\n setTimeout(this.updateLine);\n },\n\n updateLine: function () {\n var el = this.el;\n var intersections = this.intersections;\n var lineLength;\n\n if (this.data.showLine) {\n if (intersections.length) {\n if (intersections[0].object.el === el && intersections[1]) {\n lineLength = intersections[1].distance;\n } else {\n lineLength = intersections[0].distance;\n }\n }\n this.drawLine(lineLength);\n }\n },\n\n /**\n * Return the most recent intersection details for a given entity, if any.\n * @param {AEntity} el\n * @return {Object}\n */\n getIntersection: function (el) {\n var i;\n var intersection;\n for (i = 0; i < this.intersections.length; i++) {\n intersection = this.intersections[i];\n if (intersection.object.el === el) { return intersection; }\n }\n return null;\n },\n\n /**\n * Update origin and direction of raycaster using entity transforms and supplied origin or\n * direction offsets.\n */\n updateOriginDirection: (function () {\n var direction = new THREE.Vector3();\n var originVec3 = new THREE.Vector3();\n\n // Closure to make quaternion/vector3 objects private.\n return function updateOriginDirection () {\n var el = this.el;\n var data = this.data;\n\n if (data.useWorldCoordinates) {\n this.raycaster.set(data.origin, data.direction);\n return;\n }\n\n // Grab the position and rotation. (As a side effect, this updates el.object3D.matrixWorld.)\n el.object3D.getWorldPosition(originVec3);\n\n // If non-zero origin, translate the origin into world space.\n if (data.origin.x !== 0 || data.origin.y !== 0 || data.origin.z !== 0) {\n originVec3 = el.object3D.localToWorld(originVec3.copy(data.origin));\n }\n\n // three.js raycaster direction is relative to 0, 0, 0 NOT the origin / offset we\n // provide. Apply the offset to the direction, then rotation from the object,\n // and normalize.\n direction.copy(data.direction).transformDirection(el.object3D.matrixWorld).normalize();\n\n // Apply offset and direction, in world coordinates.\n this.raycaster.set(originVec3, direction);\n };\n })(),\n\n /**\n * Create or update line to give raycaster visual representation.\n * Customize the line through through line component.\n * We draw the line in the raycaster component to customize the line to the\n * raycaster's origin, direction, and far.\n *\n * Unlike the raycaster, we create the line as a child of the object. The line will\n * be affected by the transforms of the objects, so we don't have to calculate transforms\n * like we do with the raycaster.\n *\n * @param {number} length - Length of line. Pass in to shorten the line to the intersection\n * point. If not provided, length will default to the max length, `raycaster.far`.\n */\n drawLine: function (length) {\n var data = this.data;\n var el = this.el;\n var endVec3;\n\n // Switch each time vector so line update triggered and to avoid unnecessary vector clone.\n endVec3 = this.lineData.end === this.lineEndVec3\n ? this.otherLineEndVec3\n : this.lineEndVec3;\n\n // Treat Infinity as 1000m for the line.\n if (length === undefined) {\n length = data.far === Infinity ? 1000 : data.far;\n }\n\n // Update the length of the line if given. `unitLineEndVec3` is the direction\n // given by data.direction, then we apply a scalar to give it a length.\n this.lineData.start = data.origin;\n this.lineData.end = endVec3.copy(this.unitLineEndVec3).multiplyScalar(length);\n el.setAttribute('line', this.lineData);\n },\n\n /**\n * Return A-Frame attachments of each element's object3D group (e.g., mesh).\n * Children are flattened by one level, removing the THREE.Group wrapper,\n * so that non-recursive raycasting remains useful.\n *\n * Only push children defined as component attachemnts (e.g., setObject3D),\n * not actual children in the scene graph hierarchy.\n *\n * @param {Array} els\n * @return {Array}\n */\n flattenObject3DMaps: function (els) {\n var key;\n var i;\n var objects = this.objects;\n\n // Push meshes and other attachments onto list of objects to intersect.\n objects.length = 0;\n for (i = 0; i < els.length; i++) {\n if (els[i].object3D) {\n for (key in els[i].object3DMap) {\n objects.push(els[i].getObject3D(key));\n }\n }\n }\n\n return objects;\n },\n\n clearAllIntersections: function () {\n var i;\n for (i = 0; i < this.intersectedEls.length; i++) {\n this.intersectedEls[i].emit(EVENTS.INTERSECT_CLEAR,\n this.intersectedClearedDetail);\n }\n copyArray(this.clearedIntersectedEls, this.intersectedEls);\n this.intersectedEls.length = 0;\n this.intersections.length = 0;\n this.el.emit(EVENTS.INTERSECTION_CLEAR, this.intersectionClearedDetail);\n }\n});\n\n/**\n * Copy contents of one array to another without allocating new array.\n */\nfunction copyArray (a, b) {\n var i;\n a.length = b.length;\n for (i = 0; i < b.length; i++) {\n a[i] = b[i];\n }\n}\n", "var degToRad = require('../lib/three').Math.degToRad;\nvar registerComponent = require('../core/component').registerComponent;\n\nmodule.exports.Component = registerComponent('rotation', {\n schema: {type: 'vec3'},\n\n /**\n * Updates object3D rotation.\n */\n update: function () {\n var data = this.data;\n var object3D = this.el.object3D;\n object3D.rotation.set(degToRad(data.x), degToRad(data.y), degToRad(data.z));\n object3D.rotation.order = 'YXZ';\n },\n\n remove: function () {\n // Pretty much for mixins.\n this.el.object3D.rotation.set(0, 0, 0);\n }\n});\n", "var registerComponent = require('../core/component').registerComponent;\n\n// Avoids triggering a zero-determinant which makes object3D matrix non-invertible.\nvar zeroScale = 0.00001;\n\nmodule.exports.Component = registerComponent('scale', {\n schema: {\n type: 'vec3',\n default: {x: 1, y: 1, z: 1}\n },\n\n update: function () {\n var data = this.data;\n var object3D = this.el.object3D;\n var x = data.x === 0 ? zeroScale : data.x;\n var y = data.y === 0 ? zeroScale : data.y;\n var z = data.z === 0 ? zeroScale : data.z;\n object3D.scale.set(x, y, z);\n },\n\n remove: function () {\n // Pretty much for mixins.\n this.el.object3D.scale.set(1, 1, 1);\n }\n});\n", "/* global THREE */\nvar register = require('../../core/component').registerComponent;\n\nmodule.exports.Component = register('background', {\n schema: {\n color: {type: 'color', default: 'black'},\n transparent: {default: false}\n },\n update: function () {\n var data = this.data;\n var object3D = this.el.object3D;\n if (data.transparent) {\n object3D.background = null;\n return;\n }\n object3D.background = new THREE.Color(data.color);\n }\n});\n", @@ -298,7 +301,7 @@ "var registerComponent = require('../../core/component').registerComponent;\nvar RStats = require('../../../vendor/rStats');\nvar utils = require('../../utils');\nrequire('../../../vendor/rStats.extras');\nrequire('../../lib/rStatsAframe');\n\nvar AFrameStats = window.aframeStats;\nvar bind = utils.bind;\nvar HIDDEN_CLASS = 'a-hidden';\nvar ThreeStats = window.threeStats;\n\n/**\n * Stats appended to document.body by RStats.\n */\nmodule.exports.Component = registerComponent('stats', {\n schema: {default: true},\n\n init: function () {\n var scene = this.el;\n\n if (utils.getUrlParameter('stats') === 'false') { return; }\n\n this.stats = createStats(scene);\n this.statsEl = document.querySelector('.rs-base');\n\n this.hideBound = bind(this.hide, this);\n this.showBound = bind(this.show, this);\n\n scene.addEventListener('enter-vr', this.hideBound);\n scene.addEventListener('exit-vr', this.showBound);\n },\n\n update: function () {\n if (!this.stats) { return; }\n return (!this.data) ? this.hide() : this.show();\n },\n\n remove: function () {\n this.el.removeEventListener('enter-vr', this.hideBound);\n this.el.removeEventListener('exit-vr', this.showBound);\n if (!this.statsEl) { return; } // Scene detached.\n this.statsEl.parentNode.removeChild(this.statsEl);\n },\n\n tick: function () {\n var stats = this.stats;\n\n if (!stats) { return; }\n\n stats('rAF').tick();\n stats('FPS').frame();\n stats().update();\n },\n\n hide: function () {\n this.statsEl.classList.add(HIDDEN_CLASS);\n },\n\n show: function () {\n this.statsEl.classList.remove(HIDDEN_CLASS);\n }\n});\n\nfunction createStats (scene) {\n var threeStats = new ThreeStats(scene.renderer);\n var aframeStats = new AFrameStats(scene);\n var plugins = scene.isMobile ? [] : [threeStats, aframeStats];\n return new RStats({\n css: [], // Our stylesheet is injected from `src/index.js`.\n values: {\n fps: {caption: 'fps', below: 30}\n },\n groups: [\n {caption: 'Framerate', values: ['fps', 'raf']}\n ],\n plugins: plugins\n });\n}\n", "var registerComponent = require('../../core/component').registerComponent;\nvar constants = require('../../constants/');\nvar utils = require('../../utils/');\nvar bind = utils.bind;\n\nvar ENTER_VR_CLASS = 'a-enter-vr';\nvar ENTER_VR_BTN_CLASS = 'a-enter-vr-button';\nvar HIDDEN_CLASS = 'a-hidden';\nvar ORIENTATION_MODAL_CLASS = 'a-orientation-modal';\n\n/**\n * UI for entering VR mode.\n */\nmodule.exports.Component = registerComponent('vr-mode-ui', {\n dependencies: ['canvas'],\n\n schema: {\n enabled: {default: true},\n enterVRButton: {default: ''}\n },\n\n init: function () {\n var self = this;\n var sceneEl = this.el;\n\n if (utils.getUrlParameter('ui') === 'false') { return; }\n\n this.insideLoader = false;\n this.enterVREl = null;\n this.orientationModalEl = null;\n this.bindMethods();\n\n // Hide/show VR UI when entering/exiting VR mode.\n sceneEl.addEventListener('enter-vr', this.updateEnterVRInterface);\n sceneEl.addEventListener('exit-vr', this.updateEnterVRInterface);\n\n window.addEventListener('message', function (event) {\n if (event.data.type === 'loaderReady') {\n self.insideLoader = true;\n self.remove();\n }\n });\n\n // Modal that tells the user to change orientation if in portrait.\n window.addEventListener('orientationchange', this.toggleOrientationModalIfNeeded);\n },\n\n bindMethods: function () {\n this.onEnterVRButtonClick = bind(this.onEnterVRButtonClick, this);\n this.onModalClick = bind(this.onModalClick, this);\n this.toggleOrientationModalIfNeeded = bind(this.toggleOrientationModalIfNeeded, this);\n this.updateEnterVRInterface = bind(this.updateEnterVRInterface, this);\n },\n\n /**\n * Exit VR when modal clicked.\n */\n onModalClick: function () {\n this.el.exitVR();\n },\n\n /**\n * Enter VR when modal clicked.\n */\n onEnterVRButtonClick: function () {\n this.el.enterVR();\n },\n\n update: function () {\n var data = this.data;\n var sceneEl = this.el;\n\n if (!data.enabled || this.insideLoader || utils.getUrlParameter('ui') === 'false') {\n return this.remove();\n }\n if (this.enterVREl || this.orientationModalEl) { return; }\n\n // Add UI if enabled and not already present.\n if (data.enterVRButton) {\n // Custom button.\n this.enterVREl = document.querySelector(data.enterVRButton);\n this.enterVREl.addEventListener('click', this.onEnterVRButtonClick);\n } else {\n this.enterVREl = createEnterVRButton(this.onEnterVRButtonClick);\n sceneEl.appendChild(this.enterVREl);\n }\n\n this.orientationModalEl = createOrientationModal(this.onModalClick);\n sceneEl.appendChild(this.orientationModalEl);\n\n this.updateEnterVRInterface();\n },\n\n remove: function () {\n [this.enterVREl, this.orientationModalEl].forEach(function (uiElement) {\n if (uiElement && uiElement.parentNode) {\n uiElement.parentNode.removeChild(uiElement);\n }\n });\n },\n\n updateEnterVRInterface: function () {\n this.toggleEnterVRButtonIfNeeded();\n this.toggleOrientationModalIfNeeded();\n },\n\n toggleEnterVRButtonIfNeeded: function () {\n var sceneEl = this.el;\n if (!this.enterVREl) { return; }\n if (sceneEl.is('vr-mode')) {\n this.enterVREl.classList.add(HIDDEN_CLASS);\n } else {\n this.enterVREl.classList.remove(HIDDEN_CLASS);\n }\n },\n\n toggleOrientationModalIfNeeded: function () {\n var sceneEl = this.el;\n var orientationModalEl = this.orientationModalEl;\n if (!orientationModalEl || !sceneEl.isMobile) { return; }\n if (!utils.device.isLandscape() && sceneEl.is('vr-mode')) {\n // Show if in VR mode on portrait.\n orientationModalEl.classList.remove(HIDDEN_CLASS);\n } else {\n orientationModalEl.classList.add(HIDDEN_CLASS);\n }\n }\n});\n\n/**\n * Create a button that when clicked will enter into stereo-rendering mode for VR.\n *\n * Structure:
\n *\n * @param {function} onClick - click event handler\n * @returns {Element} Wrapper
.\n */\nfunction createEnterVRButton (onClick) {\n var vrButton;\n var wrapper;\n\n // Create elements.\n wrapper = document.createElement('div');\n wrapper.classList.add(ENTER_VR_CLASS);\n wrapper.setAttribute(constants.AFRAME_INJECTED, '');\n vrButton = document.createElement('button');\n vrButton.className = ENTER_VR_BTN_CLASS;\n vrButton.setAttribute('title',\n 'Enter VR mode with a headset or fullscreen mode on a desktop. ' +\n 'Visit https://webvr.rocks or https://webvr.info for more information.');\n vrButton.setAttribute(constants.AFRAME_INJECTED, '');\n\n // Insert elements.\n wrapper.appendChild(vrButton);\n vrButton.addEventListener('click', function (evt) {\n onClick();\n evt.stopPropagation();\n });\n return wrapper;\n}\n\n/**\n * Creates a modal dialog to request the user to switch to landscape orientation.\n *\n * @param {function} onClick - click event handler\n * @returns {Element} Wrapper
.\n */\nfunction createOrientationModal (onClick) {\n var modal = document.createElement('div');\n modal.className = ORIENTATION_MODAL_CLASS;\n modal.classList.add(HIDDEN_CLASS);\n modal.setAttribute(constants.AFRAME_INJECTED, '');\n\n var exit = document.createElement('button');\n exit.setAttribute(constants.AFRAME_INJECTED, '');\n exit.innerHTML = 'Exit VR';\n\n // Exit VR on close.\n exit.addEventListener('click', onClick);\n\n modal.appendChild(exit);\n\n return modal;\n}\n", "var component = require('../core/component');\nvar THREE = require('../lib/three');\nvar bind = require('../utils/bind');\nvar registerComponent = component.registerComponent;\n\n/**\n * Shadow component.\n *\n * When applied to an entity, that entity's geometry and any descendants will cast or receive\n * shadows as specified by the `cast` and `receive` properties.\n */\nmodule.exports.Component = registerComponent('shadow', {\n schema: {\n cast: {default: true},\n receive: {default: true}\n },\n\n init: function () {\n this.onMeshChanged = bind(this.update, this);\n this.el.addEventListener('object3dset', this.onMeshChanged);\n this.system.setShadowMapEnabled(true);\n },\n\n update: function () {\n var data = this.data;\n this.updateDescendants(data.cast, data.receive);\n },\n\n remove: function () {\n var el = this.el;\n el.removeEventListener('object3dset', this.onMeshChanged);\n this.updateDescendants(false, false);\n },\n\n updateDescendants: function (cast, receive) {\n var sceneEl = this.el.sceneEl;\n this.el.object3D.traverse(function (node) {\n if (!(node instanceof THREE.Mesh)) { return; }\n\n node.castShadow = cast;\n node.receiveShadow = receive;\n\n // If scene has already rendered, materials must be updated.\n if (sceneEl.hasLoaded && node.material) {\n var materials = Array.isArray(node.material) ? node.material : [node.material];\n for (var i = 0; i < materials.length; i++) {\n materials[i].needsUpdate = true;\n }\n }\n });\n }\n});\n", - "var registerComponent = require('../core/component').registerComponent;\nvar debug = require('../utils/debug');\nvar bind = require('../utils/bind');\nvar THREE = require('../lib/three');\n\nvar warn = debug('components:sound:warn');\n\n/**\n * Sound component.\n */\nmodule.exports.Component = registerComponent('sound', {\n schema: {\n autoplay: {default: false},\n distanceModel: {default: 'inverse', oneOf: ['linear', 'inverse', 'exponential']},\n loop: {default: false},\n maxDistance: {default: 10000},\n on: {default: ''},\n poolSize: {default: 1},\n positional: {default: true},\n refDistance: {default: 1},\n rolloffFactor: {default: 1},\n src: {type: 'audio'},\n volume: {default: 1}\n },\n\n multiple: true,\n\n init: function () {\n this.listener = null;\n this.audioLoader = new THREE.AudioLoader();\n this.pool = new THREE.Group();\n this.loaded = false;\n this.mustPlay = false;\n this.playSound = bind(this.playSound, this);\n },\n\n update: function (oldData) {\n var data = this.data;\n var i;\n var sound;\n var srcChanged = data.src !== oldData.src;\n\n // Create new sound if not yet created or changing `src`.\n if (srcChanged) {\n if (!data.src) {\n warn('Audio source was not specified with `src`');\n return;\n }\n this.setupSound();\n }\n\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (data.positional) {\n sound.setDistanceModel(data.distanceModel);\n sound.setMaxDistance(data.maxDistance);\n sound.setRefDistance(data.refDistance);\n sound.setRolloffFactor(data.rolloffFactor);\n }\n sound.setLoop(data.loop);\n sound.setVolume(data.volume);\n sound.isPaused = false;\n }\n\n if (data.on !== oldData.on) {\n this.updateEventListener(oldData.on);\n }\n\n // All sound values set. Load in `src`.\n if (srcChanged) {\n var self = this;\n\n this.loaded = false;\n this.audioLoader.load(data.src, function (buffer) {\n for (i = 0; i < self.pool.children.length; i++) {\n sound = self.pool.children[i];\n sound.setBuffer(buffer);\n }\n self.loaded = true;\n\n // Remove this key from cache, otherwise we can't play it again\n THREE.Cache.remove(data.src);\n if (self.data.autoplay || self.mustPlay) { self.playSound(); }\n self.el.emit('sound-loaded', self.evtDetail, false);\n });\n }\n },\n\n pause: function () {\n this.stopSound();\n this.removeEventListener();\n },\n\n play: function () {\n if (this.data.autoplay) { this.playSound(); }\n this.updateEventListener();\n },\n\n remove: function () {\n var i;\n var sound;\n\n this.removeEventListener();\n this.el.removeObject3D(this.attrName);\n\n try {\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n sound.disconnect();\n }\n } catch (e) {\n // disconnect() will throw if it was never connected initially.\n warn('Audio source not properly disconnected');\n }\n },\n\n /**\n * Update listener attached to the user defined on event.\n */\n updateEventListener: function (oldEvt) {\n var el = this.el;\n if (oldEvt) { el.removeEventListener(oldEvt, this.playSound); }\n el.addEventListener(this.data.on, this.playSound);\n },\n\n removeEventListener: function () {\n this.el.removeEventListener(this.data.on, this.playSound);\n },\n\n /**\n * Removes current sound object, creates new sound object, adds to entity.\n *\n * @returns {object} sound\n */\n setupSound: function () {\n var self = this;\n var el = this.el;\n var i;\n var sceneEl = el.sceneEl;\n var sound;\n\n if (this.pool.children.length > 0) {\n this.stopSound();\n el.removeObject3D('sound');\n }\n\n // Only want one AudioListener. Cache it on the scene.\n var listener = this.listener = sceneEl.audioListener || new THREE.AudioListener();\n sceneEl.audioListener = listener;\n\n if (sceneEl.camera) {\n sceneEl.camera.add(listener);\n }\n\n // Wait for camera if necessary.\n sceneEl.addEventListener('camera-set-active', function (evt) {\n evt.detail.cameraEl.getObject3D('camera').add(listener);\n });\n\n // Create [poolSize] audio instances and attach them to pool\n this.pool = new THREE.Group();\n for (i = 0; i < this.data.poolSize; i++) {\n sound = this.data.positional\n ? new THREE.PositionalAudio(listener)\n : new THREE.Audio(listener);\n this.pool.add(sound);\n }\n el.setObject3D(this.attrName, this.pool);\n\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n sound.onEnded = function () {\n this.isPlaying = false;\n el.emit('sound-ended', self.evtDetail, false);\n };\n }\n },\n\n /**\n * Pause all the sounds in the pool.\n */\n pauseSound: function () {\n var i;\n var sound;\n\n this.isPlaying = false;\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (!sound.source || !sound.source.buffer || !sound.isPlaying || sound.isPaused) {\n continue;\n }\n sound.isPaused = true;\n sound.pause();\n }\n },\n\n /**\n * Look for an unused sound in the pool and play it if found.\n */\n playSound: function (processSound) {\n var found;\n var i;\n var sound;\n\n if (!this.loaded) {\n warn('Sound not loaded yet. It will be played once it finished loading');\n this.mustPlay = true;\n return;\n }\n\n found = false;\n this.isPlaying = true;\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (!sound.isPlaying && sound.buffer && !found) {\n if (processSound) { processSound(sound); }\n sound.play();\n sound.isPaused = false;\n found = true;\n continue;\n }\n }\n\n if (!found) {\n warn('All the sounds are playing. If you need to play more sounds simultaneously ' +\n 'consider increasing the size of pool with the `poolSize` attribute.', this.el);\n return;\n }\n\n this.mustPlay = false;\n },\n\n /**\n * Stop all the sounds in the pool.\n */\n stopSound: function () {\n var i;\n var sound;\n this.isPlaying = false;\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (!sound.source || !sound.source.buffer) { return; }\n sound.stop();\n }\n }\n});\n", + "var registerComponent = require('../core/component').registerComponent;\nvar debug = require('../utils/debug');\nvar THREE = require('../lib/three');\n\nvar warn = debug('components:sound:warn');\n\n/**\n * Sound component.\n */\nmodule.exports.Component = registerComponent('sound', {\n schema: {\n autoplay: {default: false},\n distanceModel: {default: 'inverse', oneOf: ['linear', 'inverse', 'exponential']},\n loop: {default: false},\n maxDistance: {default: 10000},\n on: {default: ''},\n poolSize: {default: 1},\n positional: {default: true},\n refDistance: {default: 1},\n rolloffFactor: {default: 1},\n src: {type: 'audio'},\n volume: {default: 1}\n },\n\n multiple: true,\n\n init: function () {\n this.listener = null;\n this.audioLoader = new THREE.AudioLoader();\n this.pool = new THREE.Group();\n this.loaded = false;\n this.mustPlay = false;\n\n // Don't pass evt because playSound takes a function as parameter.\n this.playSoundBound = () => { this.playSound(); };\n },\n\n update: function (oldData) {\n var data = this.data;\n var i;\n var sound;\n var srcChanged = data.src !== oldData.src;\n\n // Create new sound if not yet created or changing `src`.\n if (srcChanged) {\n if (!data.src) {\n warn('Audio source was not specified with `src`');\n return;\n }\n this.setupSound();\n }\n\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (data.positional) {\n sound.setDistanceModel(data.distanceModel);\n sound.setMaxDistance(data.maxDistance);\n sound.setRefDistance(data.refDistance);\n sound.setRolloffFactor(data.rolloffFactor);\n }\n sound.setLoop(data.loop);\n sound.setVolume(data.volume);\n sound.isPaused = false;\n }\n\n if (data.on !== oldData.on) {\n this.updateEventListener(oldData.on);\n }\n\n // All sound values set. Load in `src`.\n if (srcChanged) {\n var self = this;\n\n this.loaded = false;\n this.audioLoader.load(data.src, function (buffer) {\n for (i = 0; i < self.pool.children.length; i++) {\n sound = self.pool.children[i];\n sound.setBuffer(buffer);\n }\n self.loaded = true;\n\n // Remove this key from cache, otherwise we can't play it again\n THREE.Cache.remove(data.src);\n if (self.data.autoplay || self.mustPlay) { self.playSound(); }\n self.el.emit('sound-loaded', self.evtDetail, false);\n });\n }\n },\n\n pause: function () {\n this.stopSound();\n this.removeEventListener();\n },\n\n play: function () {\n if (this.data.autoplay) { this.playSound(); }\n this.updateEventListener();\n },\n\n remove: function () {\n var i;\n var sound;\n\n this.removeEventListener();\n this.el.removeObject3D(this.attrName);\n\n try {\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n sound.disconnect();\n }\n } catch (e) {\n // disconnect() will throw if it was never connected initially.\n warn('Audio source not properly disconnected');\n }\n },\n\n /**\n * Update listener attached to the user defined on event.\n */\n updateEventListener: function (oldEvt) {\n var el = this.el;\n if (oldEvt) { el.removeEventListener(oldEvt, this.playSoundBound); }\n el.addEventListener(this.data.on, this.playSoundBound);\n },\n\n removeEventListener: function () {\n this.el.removeEventListener(this.data.on, this.playSoundBound);\n },\n\n /**\n * Removes current sound object, creates new sound object, adds to entity.\n *\n * @returns {object} sound\n */\n setupSound: function () {\n var self = this;\n var el = this.el;\n var i;\n var sceneEl = el.sceneEl;\n var sound;\n\n if (this.pool.children.length > 0) {\n this.stopSound();\n el.removeObject3D('sound');\n }\n\n // Only want one AudioListener. Cache it on the scene.\n var listener = this.listener = sceneEl.audioListener || new THREE.AudioListener();\n sceneEl.audioListener = listener;\n\n if (sceneEl.camera) {\n sceneEl.camera.add(listener);\n }\n\n // Wait for camera if necessary.\n sceneEl.addEventListener('camera-set-active', function (evt) {\n evt.detail.cameraEl.getObject3D('camera').add(listener);\n });\n\n // Create [poolSize] audio instances and attach them to pool\n this.pool = new THREE.Group();\n for (i = 0; i < this.data.poolSize; i++) {\n sound = this.data.positional\n ? new THREE.PositionalAudio(listener)\n : new THREE.Audio(listener);\n this.pool.add(sound);\n }\n el.setObject3D(this.attrName, this.pool);\n\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n sound.onEnded = function () {\n this.isPlaying = false;\n el.emit('sound-ended', self.evtDetail, false);\n };\n }\n },\n\n /**\n * Pause all the sounds in the pool.\n */\n pauseSound: function () {\n var i;\n var sound;\n\n this.isPlaying = false;\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (!sound.source || !sound.source.buffer || !sound.isPlaying || sound.isPaused) {\n continue;\n }\n sound.isPaused = true;\n sound.pause();\n }\n },\n\n /**\n * Look for an unused sound in the pool and play it if found.\n */\n playSound: function (processSound) {\n var found;\n var i;\n var sound;\n\n if (!this.loaded) {\n warn('Sound not loaded yet. It will be played once it finished loading');\n this.mustPlay = true;\n return;\n }\n\n found = false;\n this.isPlaying = true;\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (!sound.isPlaying && sound.buffer && !found) {\n if (processSound) { processSound(sound); }\n sound.play();\n sound.isPaused = false;\n found = true;\n continue;\n }\n }\n\n if (!found) {\n warn('All the sounds are playing. If you need to play more sounds simultaneously ' +\n 'consider increasing the size of pool with the `poolSize` attribute.', this.el);\n return;\n }\n\n this.mustPlay = false;\n },\n\n /**\n * Stop all the sounds in the pool.\n */\n stopSound: function () {\n var i;\n var sound;\n this.isPlaying = false;\n for (i = 0; i < this.pool.children.length; i++) {\n sound = this.pool.children[i];\n if (!sound.source || !sound.source.buffer) { return; }\n sound.stop();\n }\n }\n});\n", "var createTextGeometry = require('three-bmfont-text');\nvar loadBMFont = require('load-bmfont');\n\nvar registerComponent = require('../core/component').registerComponent;\nvar coreShader = require('../core/shader');\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar error = utils.debug('components:text:error');\nvar shaders = coreShader.shaders;\nvar warn = utils.debug('components:text:warn');\n\n// 1 to match other A-Frame default widths.\nvar DEFAULT_WIDTH = 1;\n\n// @bryik set anisotropy to 16. Improves look of large amounts of text when viewed from angle.\nvar MAX_ANISOTROPY = 16;\n\nvar FONT_BASE_URL = 'https://cdn.aframe.io/fonts/';\nvar FONTS = {\n aileronsemibold: FONT_BASE_URL + 'Aileron-Semibold.fnt',\n dejavu: FONT_BASE_URL + 'DejaVu-sdf.fnt',\n exo2bold: FONT_BASE_URL + 'Exo2Bold.fnt',\n exo2semibold: FONT_BASE_URL + 'Exo2SemiBold.fnt',\n kelsonsans: FONT_BASE_URL + 'KelsonSans.fnt',\n monoid: FONT_BASE_URL + 'Monoid.fnt',\n mozillavr: FONT_BASE_URL + 'mozillavr.fnt',\n roboto: FONT_BASE_URL + 'Roboto-msdf.json',\n sourcecodepro: FONT_BASE_URL + 'SourceCodePro.fnt'\n};\nvar MSDF_FONTS = ['roboto'];\nvar DEFAULT_FONT = 'roboto';\nmodule.exports.FONTS = FONTS;\n\nvar cache = new PromiseCache();\nvar fontWidthFactors = {};\nvar textures = {};\n\n// Regular expression for detecting a URLs with a protocol prefix.\nvar protocolRe = /^\\w+:/;\n\n/**\n * SDF-based text component.\n * Based on https://github.com/Jam3/three-bmfont-text.\n *\n * All the stock fonts are for the `sdf` registered shader, an improved version of jam3's\n * original `sdf` shader.\n */\nmodule.exports.Component = registerComponent('text', {\n multiple: true,\n\n schema: {\n align: {type: 'string', default: 'left', oneOf: ['left', 'right', 'center']},\n alphaTest: {default: 0.5},\n // `anchor` defaults to center to match geometries.\n anchor: {default: 'center', oneOf: ['left', 'right', 'center', 'align']},\n baseline: {default: 'center', oneOf: ['top', 'center', 'bottom']},\n color: {type: 'color', default: '#FFF'},\n font: {type: 'string', default: DEFAULT_FONT},\n // `fontImage` defaults to the font name as a .png (e.g., mozillavr.fnt -> mozillavr.png).\n fontImage: {type: 'string'},\n // `height` has no default, will be populated at layout.\n height: {type: 'number'},\n letterSpacing: {type: 'number', default: 0},\n // `lineHeight` defaults to font's `lineHeight` value.\n lineHeight: {type: 'number'},\n // `negate` must be true for fonts generated with older versions of msdfgen (white background).\n negate: {type: 'boolean', default: true},\n opacity: {type: 'number', default: 1.0},\n shader: {default: 'sdf', oneOf: shaders},\n side: {default: 'front', oneOf: ['front', 'back', 'double']},\n tabSize: {default: 4},\n transparent: {default: true},\n value: {type: 'string'},\n whiteSpace: {default: 'normal', oneOf: ['normal', 'pre', 'nowrap']},\n // `width` defaults to geometry width if present, else `DEFAULT_WIDTH`.\n width: {type: 'number'},\n // `wrapCount` units are about one default font character. Wrap roughly at this number.\n wrapCount: {type: 'number', default: 40},\n // `wrapPixels` will wrap using bmfont pixel units (e.g., dejavu's is 32 pixels).\n wrapPixels: {type: 'number'},\n // `xOffset` to add padding.\n xOffset: {type: 'number', default: 0},\n // `yOffset` to adjust generated fonts from tools that may have incorrect metrics.\n yOffset: {type: 'number', default: 0},\n // `zOffset` will provide a small z offset to avoid z-fighting.\n zOffset: {type: 'number', default: 0.001}\n },\n\n init: function () {\n this.shaderData = {};\n this.geometry = createTextGeometry();\n this.createOrUpdateMaterial();\n this.mesh = new THREE.Mesh(this.geometry, this.material);\n this.el.setObject3D(this.attrName, this.mesh);\n },\n\n update: function (oldData) {\n var data = this.data;\n var font = this.currentFont;\n\n if (textures[data.font]) {\n this.texture = textures[data.font];\n } else {\n // Create texture per font.\n this.texture = textures[data.font] = new THREE.Texture();\n this.texture.anisotropy = MAX_ANISOTROPY;\n }\n\n // Update material.\n this.createOrUpdateMaterial();\n\n // New font. `updateFont` will later change data and layout.\n if (oldData.font !== data.font) {\n this.updateFont();\n return;\n }\n\n // Update geometry and layout.\n if (font) {\n this.updateGeometry(this.geometry, font);\n this.updateLayout();\n }\n },\n\n /**\n * Clean up geometry, material, texture, mesh, objects.\n */\n remove: function () {\n this.geometry.dispose();\n this.geometry = null;\n this.el.removeObject3D(this.attrName);\n this.material.dispose();\n this.material = null;\n this.texture.dispose();\n this.texture = null;\n if (this.shaderObject) {\n delete this.shaderObject;\n }\n },\n\n /**\n * Update the shader of the material.\n */\n createOrUpdateMaterial: function () {\n var data = this.data;\n var hasChangedShader;\n var material = this.material;\n var NewShader;\n var shaderData = this.shaderData;\n var shaderName;\n\n // Infer shader if using a stock font (or from `-msdf` filename convention).\n shaderName = data.shader;\n if (MSDF_FONTS.indexOf(data.font) !== -1 || data.font.indexOf('-msdf.') >= 0) {\n shaderName = 'msdf';\n } else if (data.font in FONTS && MSDF_FONTS.indexOf(data.font) === -1) {\n shaderName = 'sdf';\n }\n\n hasChangedShader = (this.shaderObject && this.shaderObject.name) !== shaderName;\n\n shaderData.alphaTest = data.alphaTest;\n shaderData.color = data.color;\n shaderData.map = this.texture;\n shaderData.opacity = data.opacity;\n shaderData.side = parseSide(data.side);\n shaderData.transparent = data.transparent;\n shaderData.negate = data.negate;\n\n // Shader has not changed, do an update.\n if (!hasChangedShader) {\n // Update shader material.\n this.shaderObject.update(shaderData);\n // Apparently, was not set on `init` nor `update`.\n material.transparent = shaderData.transparent;\n material.side = shaderData.side;\n return;\n }\n\n // Shader has changed. Create a shader material.\n NewShader = createShader(this.el, shaderName, shaderData);\n this.material = NewShader.material;\n this.shaderObject = NewShader.shader;\n\n // Set new shader material.\n this.material.side = shaderData.side;\n if (this.mesh) { this.mesh.material = this.material; }\n },\n\n /**\n * Load font for geometry, load font image for material, and apply.\n */\n updateFont: function () {\n var data = this.data;\n var el = this.el;\n var fontSrc;\n var geometry = this.geometry;\n var self = this;\n\n if (!data.font) { warn('No font specified. Using the default font.'); }\n\n // Make invisible during font swap.\n this.mesh.visible = false;\n\n // Look up font URL to use, and perform cached load.\n fontSrc = this.lookupFont(data.font || DEFAULT_FONT) || data.font;\n cache.get(fontSrc, function doLoadFont () {\n return loadFont(fontSrc, data.yOffset);\n }).then(function setFont (font) {\n var fontImgSrc;\n\n if (font.pages.length !== 1) {\n throw new Error('Currently only single-page bitmap fonts are supported.');\n }\n\n if (!fontWidthFactors[fontSrc]) {\n font.widthFactor = fontWidthFactors[font] = computeFontWidthFactor(font);\n }\n\n // Update geometry given font metrics.\n self.updateGeometry(geometry, font);\n\n // Set font and update layout.\n self.currentFont = font;\n self.updateLayout();\n\n // Look up font image URL to use, and perform cached load.\n fontImgSrc = self.getFontImageSrc();\n cache.get(fontImgSrc, function () {\n return loadTexture(fontImgSrc);\n }).then(function (image) {\n // Make mesh visible and apply font image as texture.\n var texture = self.texture;\n texture.image = image;\n texture.needsUpdate = true;\n textures[data.font] = texture;\n self.texture = texture;\n self.mesh.visible = true;\n el.emit('textfontset', {font: data.font, fontObj: font});\n }).catch(function (err) {\n error(err);\n throw err;\n });\n }).catch(function (err) {\n error(err);\n throw err;\n });\n },\n\n getFontImageSrc: function () {\n if (this.data.fontImage) { return this.data.fontImage; }\n var fontSrc = this.lookupFont(this.data.font || DEFAULT_FONT) || this.data.font;\n var imageSrc = this.currentFont.pages[0];\n // If the image URL contains a non-HTTP(S) protocol, assume it's an absolute\n // path on disk and try to infer the path from the font source instead.\n if (imageSrc.match(protocolRe) && imageSrc.indexOf('http') !== 0) {\n return fontSrc.replace(/(\\.fnt)|(\\.json)/, '.png');\n }\n return THREE.LoaderUtils.extractUrlBase(fontSrc) + imageSrc;\n },\n\n /**\n * Update layout with anchor, alignment, baseline, and considering any meshes.\n */\n updateLayout: function () {\n var anchor;\n var baseline;\n var el = this.el;\n var data = this.data;\n var geometry = this.geometry;\n var geometryComponent;\n var height;\n var layout;\n var mesh = this.mesh;\n var textRenderWidth;\n var textScale;\n var width;\n var x;\n var y;\n\n if (!geometry.layout) { return; }\n\n // Determine width to use (defined width, geometry's width, or default width).\n geometryComponent = el.getAttribute('geometry');\n width = data.width || (geometryComponent && geometryComponent.width) || DEFAULT_WIDTH;\n\n // Determine wrap pixel count. Either specified or by experimental fudge factor.\n // Note that experimental factor will never be correct for variable width fonts.\n textRenderWidth = computeWidth(data.wrapPixels, data.wrapCount,\n this.currentFont.widthFactor);\n textScale = width / textRenderWidth;\n\n // Determine height to use.\n layout = geometry.layout;\n height = textScale * (layout.height + layout.descender);\n\n // Update geometry dimensions to match text layout if width and height are set to 0.\n // For example, scales a plane to fit text.\n if (geometryComponent) {\n if (!geometryComponent.width) { el.setAttribute('geometry', 'width', width); }\n if (!geometryComponent.height) { el.setAttribute('geometry', 'height', height); }\n }\n\n // Calculate X position to anchor text left, center, or right.\n anchor = data.anchor === 'align' ? data.align : data.anchor;\n if (anchor === 'left') {\n x = 0;\n } else if (anchor === 'right') {\n x = -1 * layout.width;\n } else if (anchor === 'center') {\n x = -1 * layout.width / 2;\n } else {\n throw new TypeError('Invalid text.anchor property value', anchor);\n }\n\n // Calculate Y position to anchor text top, center, or bottom.\n baseline = data.baseline;\n if (baseline === 'bottom') {\n y = 0;\n } else if (baseline === 'top') {\n y = -1 * layout.height + layout.ascender;\n } else if (baseline === 'center') {\n y = -1 * layout.height / 2;\n } else {\n throw new TypeError('Invalid text.baseline property value', baseline);\n }\n\n // Position and scale mesh to apply layout.\n mesh.position.x = x * textScale + data.xOffset;\n mesh.position.y = y * textScale;\n // Place text slightly in front to avoid Z-fighting.\n mesh.position.z = data.zOffset;\n mesh.scale.set(textScale, -1 * textScale, textScale);\n },\n\n /**\n * Grab font from the constant.\n * Set as a method for test stubbing purposes.\n */\n lookupFont: function (key) {\n return FONTS[key];\n },\n\n /**\n * Update the text geometry using `three-bmfont-text.update`.\n */\n updateGeometry: (function () {\n var geometryUpdateBase = {};\n var geometryUpdateData = {};\n var newLineRegex = /\\\\n/g;\n var tabRegex = /\\\\t/g;\n\n return function (geometry, font) {\n var data = this.data;\n\n geometryUpdateData.font = font;\n geometryUpdateData.lineHeight = data.lineHeight && isFinite(data.lineHeight)\n ? data.lineHeight\n : font.common.lineHeight;\n geometryUpdateData.text = data.value.toString().replace(newLineRegex, '\\n')\n .replace(tabRegex, '\\t');\n geometryUpdateData.width = computeWidth(data.wrapPixels, data.wrapCount,\n font.widthFactor);\n geometry.update(utils.extend(geometryUpdateBase, data, geometryUpdateData));\n };\n })()\n});\n\n/**\n * Due to using negative scale, we return the opposite side specified.\n * https://github.com/mrdoob/three.js/pull/12787/\n */\nfunction parseSide (side) {\n switch (side) {\n case 'back': {\n return THREE.FrontSide;\n }\n case 'double': {\n return THREE.DoubleSide;\n }\n default: {\n return THREE.BackSide;\n }\n }\n}\n\n/**\n * @returns {Promise}\n */\nfunction loadFont (src, yOffset) {\n return new Promise(function (resolve, reject) {\n loadBMFont(src, function (err, font) {\n if (err) {\n error('Error loading font', src);\n reject(err);\n return;\n }\n\n // Fix negative Y offsets for Roboto MSDF font from tool. Experimentally determined.\n if (src.indexOf('/Roboto-msdf.json') >= 0) { yOffset = 30; }\n if (yOffset) { font.chars.map(function doOffset (ch) { ch.yoffset += yOffset; }); }\n\n resolve(font);\n });\n });\n}\n\n/**\n * @returns {Promise}\n */\nfunction loadTexture (src) {\n return new Promise(function (resolve, reject) {\n new THREE.ImageLoader().load(src, function (image) {\n resolve(image);\n }, undefined, function () {\n error('Error loading font image', src);\n reject(null);\n });\n });\n}\n\nfunction createShader (el, shaderName, data) {\n var shader;\n var shaderObject;\n\n // Set up Shader.\n shaderObject = new shaders[shaderName].Shader();\n shaderObject.el = el;\n shaderObject.init(data);\n shaderObject.update(data);\n\n // Get material.\n shader = shaderObject.material;\n // Apparently, was not set on `init` nor `update`.\n shader.transparent = data.transparent;\n\n return {\n material: shader,\n shader: shaderObject\n };\n}\n\n/**\n * Determine wrap pixel count. Either specified or by experimental fudge factor.\n * Note that experimental factor will never be correct for variable width fonts.\n */\nfunction computeWidth (wrapPixels, wrapCount, widthFactor) {\n return wrapPixels || ((0.5 + wrapCount) * widthFactor);\n}\n\n/**\n * Compute default font width factor to use.\n */\nfunction computeFontWidthFactor (font) {\n var sum = 0;\n var digitsum = 0;\n var digits = 0;\n font.chars.map(function (ch) {\n sum += ch.xadvance;\n if (ch.id >= 48 && ch.id <= 57) {\n digits++;\n digitsum += ch.xadvance;\n }\n });\n return digits ? digitsum / digits : sum / font.chars.length;\n}\n\n/**\n * Get or create a promise given a key and promise generator.\n * @todo Move to a utility and use in other parts of A-Frame.\n */\nfunction PromiseCache () {\n var cache = this.cache = {};\n\n this.get = function (key, promiseGenerator) {\n if (key in cache) {\n return cache[key];\n }\n cache[key] = promiseGenerator();\n return cache[key];\n };\n}\n", "var registerComponent = require('../core/component').registerComponent;\nvar controllerUtils = require('../utils/tracked-controls');\nvar DEFAULT_CAMERA_HEIGHT = require('../constants').DEFAULT_CAMERA_HEIGHT;\nvar THREE = require('../lib/three');\n\nvar DEFAULT_HANDEDNESS = require('../constants').DEFAULT_HANDEDNESS;\n// Vector from eyes to elbow (divided by user height).\nvar EYES_TO_ELBOW = {x: 0.175, y: -0.3, z: -0.03};\n// Vector from eyes to elbow (divided by user height).\nvar FOREARM = {x: 0, y: 0, z: -0.175};\n\n// Due to unfortunate name collision, add empty touches array to avoid Daydream error.\nvar EMPTY_DAYDREAM_TOUCHES = {touches: []};\n\nvar EVENTS = {\n AXISMOVE: 'axismove',\n BUTTONCHANGED: 'buttonchanged',\n BUTTONDOWN: 'buttondown',\n BUTTONUP: 'buttonup',\n TOUCHSTART: 'touchstart',\n TOUCHEND: 'touchend'\n};\n\n/**\n * Tracked controls component.\n * Wrap the gamepad API for pose and button states.\n * Select the appropriate controller and apply pose to the entity.\n * Observe button states and emit appropriate events.\n *\n * @property {number} controller - Index of controller in array returned by Gamepad API.\n * Only used if hand property is not set.\n * @property {string} id - Selected controller among those returned by Gamepad API.\n * @property {number} hand - If multiple controllers found with id, choose the one with the\n * given value for hand. If set, we ignore 'controller' property\n */\nmodule.exports.Component = registerComponent('tracked-controls', {\n schema: {\n controller: {default: 0},\n id: {type: 'string', default: ''},\n hand: {type: 'string', default: ''},\n idPrefix: {type: 'string', default: ''},\n orientationOffset: {type: 'vec3'},\n // Arm model parameters when not 6DoF.\n armModel: {default: true},\n headElement: {type: 'selector'}\n },\n\n init: function () {\n this.axis = [0, 0, 0];\n this.buttonStates = {};\n this.changedAxes = [];\n this.targetControllerNumber = this.data.controller;\n\n this.axisMoveEventDetail = {axis: this.axis, changed: this.changedAxes};\n this.deltaControllerPosition = new THREE.Vector3();\n this.controllerQuaternion = new THREE.Quaternion();\n this.controllerEuler = new THREE.Euler();\n\n this.updateGamepad();\n\n this.buttonEventDetails = {};\n },\n\n tick: function (time, delta) {\n var mesh = this.el.getObject3D('mesh');\n // Update mesh animations.\n if (mesh && mesh.update) { mesh.update(delta / 1000); }\n this.updateGamepad();\n this.updatePose();\n this.updateButtons();\n },\n\n /**\n * Return default user height to use for non-6DOF arm model.\n */\n defaultUserHeight: function () {\n return DEFAULT_CAMERA_HEIGHT;\n },\n\n /**\n * Return head element to use for non-6DOF arm model.\n */\n getHeadElement: function () {\n return this.data.headElement || this.el.sceneEl.camera.el;\n },\n\n /**\n * Handle update controller match criteria (such as `id`, `idPrefix`, `hand`, `controller`)\n */\n updateGamepad: function () {\n var data = this.data;\n var controller = controllerUtils.findMatchingController(\n this.system.controllers,\n data.id,\n data.idPrefix,\n data.hand,\n data.controller\n );\n\n this.controller = controller;\n },\n\n /**\n * Applies an artificial arm model to simulate elbow to wrist positioning\n * based on the orientation of the controller.\n *\n * @param {object} controllerPosition - Existing vector to update with controller position.\n */\n applyArmModel: function (controllerPosition) {\n // Use controllerPosition and deltaControllerPosition to avoid creating variables.\n var controller = this.controller;\n var controllerEuler = this.controllerEuler;\n var controllerQuaternion = this.controllerQuaternion;\n var deltaControllerPosition = this.deltaControllerPosition;\n var hand;\n var headEl;\n var headObject3D;\n var pose;\n var userHeight;\n\n headEl = this.getHeadElement();\n headObject3D = headEl.object3D;\n userHeight = this.defaultUserHeight();\n\n pose = controller.pose;\n hand = (controller ? controller.hand : undefined) || DEFAULT_HANDEDNESS;\n\n // Use camera position as head position.\n controllerPosition.copy(headObject3D.position);\n // Set offset for degenerate \"arm model\" to elbow.\n deltaControllerPosition.set(\n EYES_TO_ELBOW.x * (hand === 'left' ? -1 : hand === 'right' ? 1 : 0),\n EYES_TO_ELBOW.y, // Lower than our eyes.\n EYES_TO_ELBOW.z); // Slightly out in front.\n // Scale offset by user height.\n deltaControllerPosition.multiplyScalar(userHeight);\n // Apply camera Y rotation (not X or Z, so you can look down at your hand).\n deltaControllerPosition.applyAxisAngle(headObject3D.up, headObject3D.rotation.y);\n // Apply rotated offset to position.\n controllerPosition.add(deltaControllerPosition);\n\n // Set offset for degenerate \"arm model\" forearm. Forearm sticking out from elbow.\n deltaControllerPosition.set(FOREARM.x, FOREARM.y, FOREARM.z);\n // Scale offset by user height.\n deltaControllerPosition.multiplyScalar(userHeight);\n // Apply controller X/Y rotation (tilting up/down/left/right is usually moving the arm).\n if (pose.orientation) {\n controllerQuaternion.fromArray(pose.orientation);\n } else {\n controllerQuaternion.copy(headObject3D.quaternion);\n }\n controllerEuler.setFromQuaternion(controllerQuaternion);\n controllerEuler.set(controllerEuler.x, controllerEuler.y, 0);\n deltaControllerPosition.applyEuler(controllerEuler);\n // Apply rotated offset to position.\n controllerPosition.add(deltaControllerPosition);\n },\n\n /**\n * Read pose from controller (from Gamepad API), apply transforms, apply to entity.\n */\n updatePose: function () {\n var controller = this.controller;\n var data = this.data;\n var object3D = this.el.object3D;\n var pose;\n var vrDisplay = this.system.vrDisplay;\n var standingMatrix;\n\n if (!controller) { return; }\n\n // Compose pose from Gamepad.\n pose = controller.pose;\n\n if (pose.position) {\n object3D.position.fromArray(pose.position);\n } else {\n // Controller not 6DOF, apply arm model.\n if (data.armModel) { this.applyArmModel(object3D.position); }\n }\n\n if (pose.orientation) {\n object3D.quaternion.fromArray(pose.orientation);\n }\n\n // Apply transforms, if 6DOF and in VR.\n if (vrDisplay && pose.position) {\n standingMatrix = this.el.sceneEl.camera.el.components['look-controls'].controls.getStandingMatrix();\n object3D.matrixAutoUpdate = false;\n object3D.matrix.compose(object3D.position, object3D.quaternion, object3D.scale);\n object3D.matrix.multiplyMatrices(standingMatrix, object3D.matrix);\n object3D.matrix.decompose(object3D.position, object3D.quaternion, object3D.scale);\n }\n\n object3D.rotateX(this.data.orientationOffset.x * THREE.Math.DEG2RAD);\n object3D.rotateY(this.data.orientationOffset.y * THREE.Math.DEG2RAD);\n object3D.rotateZ(this.data.orientationOffset.z * THREE.Math.DEG2RAD);\n\n object3D.updateMatrix();\n object3D.matrixWorldNeedsUpdate = true;\n },\n\n /**\n * Handle button changes including axes, presses, touches, values.\n */\n updateButtons: function () {\n var buttonState;\n var controller = this.controller;\n var id;\n\n if (!controller) { return; }\n\n // Check every button.\n for (id = 0; id < controller.buttons.length; ++id) {\n // Initialize button state.\n if (!this.buttonStates[id]) {\n this.buttonStates[id] = {pressed: false, touched: false, value: 0};\n }\n if (!this.buttonEventDetails[id]) {\n this.buttonEventDetails[id] = {id: id, state: this.buttonStates[id]};\n }\n\n buttonState = controller.buttons[id];\n this.handleButton(id, buttonState);\n }\n // Check axes.\n this.handleAxes();\n },\n\n /**\n * Handle presses and touches for a single button.\n *\n * @param {number} id - Index of button in Gamepad button array.\n * @param {number} buttonState - Value of button state from 0 to 1.\n * @returns {boolean} Whether button has changed in any way.\n */\n handleButton: function (id, buttonState) {\n var changed;\n changed = this.handlePress(id, buttonState) |\n this.handleTouch(id, buttonState) |\n this.handleValue(id, buttonState);\n if (!changed) { return false; }\n this.el.emit(EVENTS.BUTTONCHANGED, this.buttonEventDetails[id], false);\n return true;\n },\n\n /**\n * An axis is an array of values from -1 (up, left) to 1 (down, right).\n * Compare each component of the axis to the previous value to determine change.\n *\n * @returns {boolean} Whether axes changed.\n */\n handleAxes: function () {\n var changed = false;\n var controllerAxes = this.controller.axes;\n var i;\n var previousAxis = this.axis;\n var changedAxes = this.changedAxes;\n\n // Check if axis changed.\n this.changedAxes.length = 0;\n for (i = 0; i < controllerAxes.length; ++i) {\n changedAxes.push(previousAxis[i] !== controllerAxes[i]);\n if (changedAxes[i]) { changed = true; }\n }\n if (!changed) { return false; }\n\n this.axis.length = 0;\n for (i = 0; i < controllerAxes.length; i++) {\n this.axis.push(controllerAxes[i]);\n }\n this.el.emit(EVENTS.AXISMOVE, this.axisMoveEventDetail, false);\n return true;\n },\n\n /**\n * Determine whether a button press has occured and emit events as appropriate.\n *\n * @param {string} id - ID of the button to check.\n * @param {object} buttonState - State of the button to check.\n * @returns {boolean} Whether button press state changed.\n */\n handlePress: function (id, buttonState) {\n var evtName;\n var previousButtonState = this.buttonStates[id];\n\n // Not changed.\n if (buttonState.pressed === previousButtonState.pressed) { return false; }\n\n evtName = buttonState.pressed ? EVENTS.BUTTONDOWN : EVENTS.BUTTONUP;\n this.el.emit(evtName, this.buttonEventDetails[id], false);\n previousButtonState.pressed = buttonState.pressed;\n return true;\n },\n\n /**\n * Determine whether a button touch has occured and emit events as appropriate.\n *\n * @param {string} id - ID of the button to check.\n * @param {object} buttonState - State of the button to check.\n * @returns {boolean} Whether button touch state changed.\n */\n handleTouch: function (id, buttonState) {\n var evtName;\n var previousButtonState = this.buttonStates[id];\n\n // Not changed.\n if (buttonState.touched === previousButtonState.touched) { return false; }\n\n evtName = buttonState.touched ? EVENTS.TOUCHSTART : EVENTS.TOUCHEND;\n this.el.emit(evtName, this.buttonEventDetails[id], false, EMPTY_DAYDREAM_TOUCHES);\n previousButtonState.touched = buttonState.touched;\n return true;\n },\n\n /**\n * Determine whether a button value has changed.\n *\n * @param {string} id - Id of the button to check.\n * @param {object} buttonState - State of the button to check.\n * @returns {boolean} Whether button value changed.\n */\n handleValue: function (id, buttonState) {\n var previousButtonState = this.buttonStates[id];\n\n // Not changed.\n if (buttonState.value === previousButtonState.value) { return false; }\n\n previousButtonState.value = buttonState.value;\n return true;\n }\n});\n", "var registerComponent = require('../core/component').registerComponent;\n\n/**\n * Visibility component.\n */\nmodule.exports.Component = registerComponent('visible', {\n schema: {default: true},\n\n update: function () {\n this.el.object3D.visible = this.data;\n }\n});\n", @@ -309,15 +312,15 @@ "module.exports = {\n // Tiny KeyboardEvent.code polyfill.\n KEYCODE_TO_CODE: {\n '38': 'ArrowUp',\n '37': 'ArrowLeft',\n '40': 'ArrowDown',\n '39': 'ArrowRight',\n '87': 'KeyW',\n '65': 'KeyA',\n '83': 'KeyS',\n '68': 'KeyD'\n }\n};\n", "var ANode = require('./a-node');\nvar bind = require('../utils/bind');\nvar debug = require('../utils/debug');\nvar registerElement = require('./a-register-element').registerElement;\nvar THREE = require('../lib/three');\n\nvar fileLoader = new THREE.FileLoader();\nvar warn = debug('core:a-assets:warn');\n\n/**\n * Asset management system. Handles blocking on asset loading.\n */\nmodule.exports = registerElement('a-assets', {\n prototype: Object.create(ANode.prototype, {\n createdCallback: {\n value: function () {\n this.isAssets = true;\n this.fileLoader = fileLoader;\n this.timeout = null;\n }\n },\n\n attachedCallback: {\n value: function () {\n var self = this;\n var i;\n var loaded = [];\n var mediaEl;\n var mediaEls;\n var imgEl;\n var imgEls;\n var timeout;\n\n if (!this.parentNode.isScene) {\n throw new Error(' must be a child of a .');\n }\n\n // Wait for s.\n imgEls = this.querySelectorAll('img');\n for (i = 0; i < imgEls.length; i++) {\n imgEl = fixUpMediaElement(imgEls[i]);\n loaded.push(new Promise(function (resolve, reject) {\n // Set in cache because we won't be needing to call three.js loader if we have.\n // a loaded media element.\n THREE.Cache.files[imgEls[i].getAttribute('src')] = imgEl;\n imgEl.onload = resolve;\n imgEl.onerror = reject;\n }));\n }\n\n // Wait for