import com.threed.jpct.util.MemoryHelper; //导入依赖的package包/类
private void drawScene(){
	world = new World();

	Vector<EditorObject> objects = new Vector<EditorObject>();
	Vector<LightData> lights = new Vector<LightData>();

	
	String flagModeSetting = prefs.getString(Settings.FLAG_MODE_SETTING, Settings.FLAG_MODE_FULLSCREEN);
	String flagSpeedSetting = prefs.getString(Settings.FLAG_SPEED, "normal");
	
	AssetManager assetManager = FlagWallpaperService.context.getAssets();
	objects = Scene.loadSerializedLevel(flagModeSetting+"_"+flagSpeedSetting+".txt", objects, lights, null,null, world, assetManager);

	flag = (Scene.findObject(flagModeSetting+"0", objects));
	Animator.Play(flag, "wave", objects);

	float[] bb = flag.getMesh().getBoundingBox();
	float width = Math.abs(bb[0]-bb[1]);
	Camera cam = world.getCamera();
	float moveout;
	if(flagModeSetting.equals(Settings.FLAG_MODE_FULLSCREEN)){
		pole = null;
		moveout = 30; 
		cam.setPositionToCenter(flag);
		cam.moveCamera(Camera.CAMERA_MOVEOUT, moveout);
		//		cam.setYFOV(cam.convertRADAngleIntoFOV((float) Math.atan(height/(2*moveout))));
		cam.setFOV(cam.convertRADAngleIntoFOV((float) Math.atan(width/(2*moveout))));
		cam.lookAt(flag.getTransformedCenter());
	}else{
		pole = (Scene.findObject("pole", objects));
		float height = Math.abs(bb[2]-bb[3]);
		moveout = 35; 
		cam.setPosition(0, 0, 0);
		cam.moveCamera(Camera.CAMERA_MOVEOUT, moveout);
		cam.moveCamera(Camera.CAMERA_MOVEDOWN, height-5);
		cam.setFOV(cam.convertRADAngleIntoFOV((float) Math.atan(width/(2*moveout))));
		cam.lookAt(new SimpleVector(width/2, -height/2, 0));			
	}

	Light sun = new Light(world);
	SimpleVector sv = new SimpleVector();
	sv.set(flag.getTransformedCenter());
	sv.y += 100;
	sv.x -= 100;
	sv.z -= 30;
	sun.setPosition(sv);
	//		sun.disable();

	MemoryHelper.compact();

}
 

import com.threed.jpct.util.MemoryHelper; //导入依赖的package包/类
public void onSurfaceChanged(GL10 gl, int w, int h) {
            if (fb != null) {
                fb.dispose();
            }
            fb = new FrameBuffer(gl, w, h);

            if (master == null) {

                world = new World();
                world.setAmbientLight(20, 20, 20);

                sun = new Light(world);
                sun.setIntensity(250, 250, 250);

                // Create a texture out of the icon...:-)
                Texture texture = new Texture(BitmapHelper.rescale(BitmapHelper.convert(getResources().getDrawable(R.drawable.icon)), 64, 64));
                Texture sky_tex = new Texture(BitmapHelper.rescale(BitmapHelper.convert(getResources().getDrawable(R.raw.sky)), 64, 64));
                TextureManager.getInstance().addTexture("texture", texture);
                TextureManager.getInstance().addTexture("sky", sky_tex);

				/*cube = Primitives.getCube(10);
				cube.calcTextureWrapSpherical();
				cube.setTexture("texture");
				cube.strip();
				cube.build();
*/
                //world.addObject(cube);

                //sky = new SkyBox("sky", "sky", "sky", "sky", "sky", "sky", 90.0f);


                objects = Scene.loadLevelAE("test.txt", objects, world, assetManager);
                cube = Scene.findObject("barrel", objects);
                cube.scale(10.0f);
                world.addObject(cube);

                Camera cam = world.getCamera();
                cam.moveCamera(Camera.CAMERA_MOVEOUT, 50);
                cam.lookAt(cube.getTransformedCenter());

                SimpleVector sv = new SimpleVector();
                sv.set(cube.getTransformedCenter());
                sv.y -= 100;
                sv.z -= 100;
                sun.setPosition(sv);
                MemoryHelper.compact();

                if (master == null) {
                    Logger.log("Saving master Activity!");
                    master = MyWallpaperService.this;
                }
            }
        }