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谈谈法线图的压缩
source link: http://gad.qq.com/article/detail/43289
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| 导语 贴图压缩是游戏开发中常见的一个问题，不过说到法线图的压缩，其实里面就有一些特殊的问题要处理。前段时间做了一次贴图通道的优化，打算用两个通道表示法线图并且和其他通道合并到一张图里，以
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