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L_dot_N

DX9 Vertex Shader 2.0-3.0 in Software

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In DX9 are the Vertex Shader 1.0-3.0 in Software avalible.(SW Vertex Processing) Has someone used the VS 3.0 allready ???(for what are they good ?) Is Displacement Mapping avalible in Software too ?????

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Back in DX8 anyway, VS1.0 and 1.1 ran rather efficiently in software. Pixel shading is another story though.

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My experience that VS2 is pretty slow in SW. A (VERY) Simple shader to transform coords is approximately 1.5x slower in SW than the EXACT SAME VS code in VS1.1. Obviously you would probably not use VS2 for such a simple thing at the moment (limited HW support is one good reason) but I did it for experimental purposes.

Neil

WHATCHA GONNA DO WHEN THE LARGEST ARMS IN THE WORLD RUN WILD ON YOU?!?!

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