Some adjustments

assets/scenes/cube.js

@@ -9,6 +9,11 @@ function CubeScene() {
   this.cam.position.lookAt(new Vec3(0, 0, 0));
 
   this.cube = new CubeEntity();
+
+  this.spriteEnt = new Entity();
+  this.spriteEnt.add(POSITION);
+  this.spriteEnt.position.position = new Vec3(16, 16, 0);
+  // this.spriteEnt.sprite.setTexture('ui/minogram.png');
 }
 
 CubeScene.prototype = Object.create(Scene.prototype);
@@ -21,6 +26,7 @@ CubeScene.prototype.update = function() {
 CubeScene.prototype.dispose = function() {
   this.cam.dispose();
   this.cube.dispose();
+  this.spriteEnt.dispose();
 };
 
 module = CubeScene;