fix parent scene

src/game-lib-d3-scene.js

@@ -194,6 +194,8 @@ GameLib.D3.Scene.prototype.createInstance = function() {
 
             this.instance.add(mesh.instance);
 
+            mesh.parentScene = this;
+
         }.bind(this)
     );
 
@@ -211,6 +213,8 @@ GameLib.D3.Scene.prototype.createInstance = function() {
 
             this.instance.add(light.instance);
 
+            light.parentScene = this;
+
         }.bind(this)
     );