这三个反射层设置为添加模式，通过软件遮罩方式的处理，按照我希望出现的地方出现镜面反射或者是模糊反射，侧重于几何物体的边缘和老化模型的处理。

The three reflection layers were set to add transfer mode, using masks I could tell the software I wanted sharp or glossy reflections, focusing on geometry edges to age the models.

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应用高斯模糊到当前遮罩。

Apply gaussian blur on current mask.

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