ColorMask

【ColorMask】

　　

　　

　　When using multiple render target (MRT) rendering, it is possible to set up different color masks for each render target, by adding index (0–7) at the end. For example, ColorMask RGB 3 would make render target #3 write only to RGB channels.

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原文地址：https://www.cnblogs.com/tekkaman/p/4126604.html