stage.stage3Ds[0].viewPort=new Rectangle(0, 0, 1024, 1024);
stage.stage3Ds[0].addEventListener(Event.CONTEXT3D_CREATE, onContextCreation);
stage.stage3Ds[0].requestContext3D(Context3DRenderMode.AUTO);
      
addEventListener(Event.ENTER_FRAME, onRender);

scene=new DisplayContext3D(stage, stage.stage3Ds[0]);
for(var i:int = 0; i < 500; i ++)
{
  var mc:TexturedMovie = new TexturedMovie(schools, 30);
  mc.play();
  mc.position = new Vector3D(Math.random()*1000 - 500, Math.random()*1000-500);
  scene.addChild(mc);
}  

royalcottage12 = new TexturedQuad(defaultTextureData, defaultTextureData.width, defaultTextureData.height);
royalcottage12.addEventListener(Mouse2DEvent.ON_MOUSE_DOWN, onMouseDown);
royalcottage12.addEventListener(Mouse2DEvent.ON_MOUSE_UP, onMouseUp);
royalcottage12.addEventListener(Mouse2DEvent.ON_MOUSE_OUT, onMouseUp);
royalcottage12.x = 32;
royalcottage12.y = 144;
scene.addChild(royalcottage12);

//libgdx自带的test，调整为100个sprite：
spriteBatch = new SpriteBatch(1000); //batch size

Pixmap pixmap = Gdx.graphics.newPixmap(Gdx.files.getFileHandle("data/badlogicsmall.jpg", FileType.Internal));
texture = Gdx.graphics.newUnmanagedTexture(32, 32, Format.RGB565, TextureFilter.Linear, TextureFilter.Linear,
  TextureWrap.ClampToEdge, TextureWrap.ClampToEdge);
texture.draw(pixmap, 0, 0);
pixmap.dispose();

pixmap = Gdx.graphics.newPixmap(32, 32, Format.RGBA8888);
pixmap.setColor(1, 1, 0, 0.5f);
pixmap.fill();
texture2 = Gdx.graphics.newUnmanagedTexture(pixmap, TextureFilter.Nearest, TextureFilter.Nearest, TextureWrap.ClampToEdge,
  TextureWrap.ClampToEdge);
pixmap.dispose();

for (int i = 0; i < sprites.length; i += 6) { // sprites.length = 100
  sprites[i] = (int)(Math.random() * (Gdx.graphics.getWidth() - 32));
  sprites[i + 1] = (int)(Math.random() * (Gdx.graphics.getHeight() - 32));
  sprites[i + 2] = 0;
  sprites[i + 3] = 0;
  sprites[i + 4] = 32;
  sprites[i + 5] = 32;
  sprites2[i] = (int)(Math.random() * (Gdx.graphics.getWidth() - 32));
  sprites2[i + 1] = (int)(Math.random() * (Gdx.graphics.getHeight() - 32));
  sprites2[i + 2] = 0;
  sprites2[i + 3] = 0;
  sprites2[i + 4] = 32;
  sprites2[i + 5] = 32;
}

for (int i = 0; i < SPRITES * 2; i++) {
  int x = (int)(Math.random() * (Gdx.graphics.getWidth() - 32));
  int y = (int)(Math.random() * (Gdx.graphics.getHeight() - 32));

  if (i >= SPRITES)
    sprites3[i] = new Sprite(texture2, 32, 32);
  else
    sprites3[i] = new Sprite(texture, 32, 32);
  sprites3[i].setPosition(x, y);
  sprites3[i].setOrigin(16, 16);
}