Add terrain heights

app/three/CustomMapHeightNodeShader.ts

@@ -84,9 +84,6 @@ export class CustomMapHeightNodeShader extends MapHeightNode {
       new MeshPhongMaterial({
         map: MapNode.defaultTexture,
         color: 0xffffff,
-        transparent: true,
-        opacity: 1.0,
-        depthTest: true,
       })
     );
 
@@ -109,7 +106,7 @@ export class CustomMapHeightNodeShader extends MapHeightNode {
       material
     );
 
-    this.frustumCulled = false;
+    this.frustumCulled = true;
   }
 
   /**
@@ -147,9 +144,10 @@ export class CustomMapHeightNodeShader extends MapHeightNode {
       vec4 _theight = texture(heightMap, vMapUv);
       float _height = ((_theight.r * 255.0 * 65536.0 + _theight.g * 255.0 * 256.0 + _theight.b * 255.0) * 0.1) - 10000.0;
       
+      // Apply height displacement
       vec3 _transformed = position + _height * normal;
-  
-      // Vertex position based on height
+
+
       gl_Position = projectionMatrix * modelViewMatrix * vec4(_transformed, 1.0);
 			`
       );