public class MyWallpaperRenderer extends RajawaliRenderer {

    private final int MAX_CUBE=64;
    private Animation3D[] mAnims=new Animation3D[MAX_CUBE];
    private RotateAnimation3D mCameraAnim;

    public MyWallpaperRenderer(Context context) {
        super(context);
        setFrameRate(60);
    }

    public void initScene() {
        ALight light = new DirectionalLight();
        light.setPower(1);
        light.setPosition(0, 0, -5);


        mCamera.setPosition(0, 0, -20);
        mCamera.setLookAt(0, 0, 0);

        Cube[] cubes=new Cube[MAX_CUBE];

        int k=-1;

        for (int i=0; i<Math.sqrt(MAX_CUBE); i++) {
            for (int j=0; j<Math.sqrt(MAX_CUBE); j++) {
                k++;

                Cube cube=(cubes[k]= new Cube(0.6f));

                DiffuseMaterial material = new DiffuseMaterial();
                material.setUseColor(true);
                cube.setMaterial(material);
                cube.addLight(light);

                cube.setColor(0xff00ff00);
                //cube.setColor(Color.argb(255, (int)Math.random()*255, (int)Math.random()*255, (int)Math.random()*255));

                cube.setPosition(i-(int)(Math.sqrt(MAX_CUBE)/2), j-(int)(Math.sqrt(MAX_CUBE)/2), 0);
                addChild(cube);

                Number3D axis = new Number3D(3, 1, 6);
                axis.normalize();

                mAnims[k] = new RotateAnimation3D(axis, 360);
                mAnims[k].setDuration(1000+k*50);
                mAnims[k].setRepeatCount(Animation3D.INFINITE);
                mAnims[k].setInterpolator(new AccelerateDecelerateInterpolator());
                mAnims[k].setTransformable3D(cube);
            }
        }

        Number3D axis = new Number3D(0, 1, 6);
        mCameraAnim = new RotateAnimation3D(axis, 360);
        mCameraAnim.setDuration(2000);
        mCameraAnim.setRepeatCount(Animation3D.INFINITE);
        mCameraAnim.setInterpolator(new AccelerateDecelerateInterpolator());
        mCameraAnim.setTransformable3D(mCamera);


    }

    public void onSurfaceCreated(GL10 gl, EGLConfig config) {
        super.onSurfaceCreated(gl, config);

        for (int i=0; i<MAX_CUBE; i++) {
            Animation3D mAnim=mAnims[i];
            mAnim.start();
        }

        mCameraAnim.start();

    }

    public void onDrawFrame(GL10 glUnused) {
        super.onDrawFrame(glUnused);
    }
}