libGDX 3D阴影 [英] libGDX 3D Shadows

问题描述

即时通讯使用libGDX，这是一个桌面项目。

Im using libGDX and this is a Desktop project.

我有2个型号，一个是性格，其他的地图，你可以在下面的图片中看到：

I have 2 models, one is the character and the other is the map, as you can see in the image below:

我的问题是：

我如何突出人物的地板上的影子？

How do I project the shadow of the character on the floor?

正如你所看到的字符没有阴影，因此周围环境光。我有什么用，或我怎么做到这一点？我应该假的阴影还是有实际的方式来投射阴影？

As you can see the character doesn't have a shadow, thus the Ambience Light. What do I have to use or how do I achieve this? Should I fake a shadow or is there a real way to project shadows?

有任何意见或sugestions欢迎。

Any comments or sugestions are welcome.

推荐答案

您可以使用下面的code：

You can use following code:

Environment environment;
DirectionalShadowLight shadowLight;

@Override
public void show() {
    modelBatch = new ModelBatch(); 
    environment = new Environment();
    environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 1.0f, 1f, .6f, 1f));
    environment.add((shadowLight = new DirectionalShadowLight(1024, 1024, 60f, 60f, .1f, 50f))                  
                .set(1f, 1f, 1f, 40.0f, -35f, -35f));   
    environment.shadowMap = shadowLight; 

    shadowBatch = new ModelBatch(new DepthShaderProvider());
}

@Override
public void render(float delta) {
        //create shadow texture
        shadowLight.begin(Vector3.Zero, camera.direction);
        shadowBatch.begin(shadowLight.getCamera());

        shadowBatch.render(instances);

        shadowBatch.end();
        shadowLight.end();

        //render scene
        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);


        modelBatch.begin(cam);      
        modelBatch.render(instances, environment);  //environment has shadowMap!
        modelBatch.end();
}

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