Originally posted by MaestroMaus
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S3TC Support For Mesa Brought Up Again
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Originally posted by Remco View PostCan't AMD, NVIDIA and Intel just come up with an unpatented method of compressing textures? It's not like we're playing the backwards compatibility game, with updates like DX10, DX11, OpenGL 3 and OpenGL 4.
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Originally posted by Remco View PostCan't AMD, NVIDIA and Intel just come up with an unpatented method of compressing textures? It's not like we're playing the backwards compatibility game, with updates like DX10, DX11, OpenGL 3 and OpenGL 4.
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Originally posted by NeoBrain View PostThere has actually been proposed an alternative, but apparently it was inferior to S3TC and wasn't adopted by anyone: http://en.wikipedia.org/wiki/FXT1
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The reason GPUs still have S3TC onboard is because DXTC, a mandatory part of Direct3D since DirectX 6, is the exact same as S3TC's 1, 3, and 5 formats. (2 and 4 are premultiplied-alpha formats, not terribly useful. They're also omitted from the GL extension.) GPU makers license this stuff from Microsoft as part of their DirectX support; you won't be able to do anything about that.
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