此通道还负责渲染着色器中的光照贴图，环境光和自发光。

This pass also adds any lightmaps, ambient and emissive lighting from the shader.

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给自发光的颜色通道指定一个噪波贴图，贴图设置如下。

Apply a "noise map" in the "Filter Color" slot and set it like on img.

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漫反射，高光，自发光纹理或光照贴图将被压缩到PVR4格式。

Diffuse, specular, emission textures or light maps will be compressed into PVR4 format.

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