try

Content.Client/_CP14/Displacement/CP14SimpleDisplacementMapSystem.cs

@@ -0,0 +1,36 @@
+using Content.Client.DisplacementMap;
+using Content.Shared.Item;
+using Robust.Client.GameObjects;
+
+namespace Content.Client._CP14.Displacement;
+
+public sealed class CP14SimpleDisplacementMapSystem : EntitySystem
+{
+    [Dependency] private readonly DisplacementMapSystem _displacement = default!;
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<CP14SimpleDisplacementMapComponent, VisualsChangedEvent>(OnVisualChanged);
+    }
+
+    private void OnVisualChanged(Entity<CP14SimpleDisplacementMapComponent> ent, ref VisualsChangedEvent args)
+    {
+        if (!TryComp<SpriteComponent>(ent, out var sprite))
+            return;
+
+        foreach (var key in ent.Comp.RevealedLayers)
+        {
+            sprite.RemoveLayer(key);
+        }
+        ent.Comp.RevealedLayers.Clear();
+
+        foreach (var (key, dData) in ent.Comp.Displacements)
+        {
+            if (!sprite.LayerMapTryGet(key, out var index))
+                continue;
+
+            _displacement.TryAddDisplacement(dData, sprite, index, key, ent.Comp.RevealedLayers);
+        }
+    }
+}