Use DTX1 compression for textures #418
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DXT1 does incur a quality drop in normal maps with embedded alpha channels for specular maps. Its sufficient for Diffuse maps with no alpha channel or in cases where you are using $alphatest, but it should not be used on normal maps. I would recommend at least DXT5 for normal maps, and for best quality, BGRA8888 |
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Reduces addon by 36.12 mbs (35.09%) with no quality drop. It simply uses a more optimized and modern compression technique for the vtfs.