Libgdx - 从对象播放动画

Question

我正在 Libgdx 中开发桌面/Android 应用程序，我想导入我在 Blender 中完成的动画。我已经从 Blender 中导出了 .obj 文件并成功地将它导入到 libgdx 中，所以现在我启动了应用程序，我可以看到模型但它没有移动。我应该怎么做才能让它根据关键帧移动？先感谢您！这是我的代码：

public void create () {
    modelBatch = new ModelBatch();
    environment = new Environment();
    environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0.4f, 0.4f, 0.4f, 1f));
    environment.add(new DirectionalLight().set(0.50f, 0.8f, 0.8f, -1f, -0.8f, -0.2f));

    cam = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
    cam.position.set(20f, 20f, 20f);
    cam.lookAt(0,0,0);
    cam.near = 0.1f;
    cam.far = 300f;
    cam.update();

    camController = new CameraInputController(cam);
    Gdx.input.setInputProcessor(camController);

    assets = new AssetManager();
    assets.load("mod1.obj", Model.class);
    loading = true;
   }

private void doneLoading() {        
    Model mod1_model = assets.get("mod1.obj", Model.class);
    ModelInstance mod1_instance= new ModelInstance(mod1_model);
    mod1_instance.transform.setToTranslation(10f, 0, -10f);
    instances.add(mod1_instance);

    loading = false;
}

@Override
public void render () {
    if (loading && assets.update())
        doneLoading();
    camController.update();

    Gdx.gl.glViewport(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
    Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

    modelBatch.begin(cam);
    modelBatch.render(instances, environment);
    modelBatch.end();
}

Answer 1

使用3d包的AnimationController控制动画

private AnimationController animation;

在 create() 或 show() 方法中：

//Note you can get animation information by Animation Description
animationDescription = new AnimationController(modelInstance);
//when you export from blender to fbx the animation name is "new take" but here I used 'Walk'
animation.animate("Walk", 2, 1f, null, 0.2f);

在 render() 方法中：

//Note Gdx graphic delta
animation.update(delta);
//then render your instance