[Mesa-dev] Mesa (master): mesa/st: ask GLSL to not emit noise since we have a dummy implementation
aras at unity3d.com
Tue Sep 14 01:05:36 PDT 2010
> Yes, in fact, nothing seems to use the NOISE opcodes at all.
> Also, I can't find evidence of any hardware ever having implemented it.
> AMD IL has Perlin noise opcodes, but it looks like they are lowered to
> normal instructions since the ISA docs don't say anything about it.
FWIW, HLSL in theory has noise() function, but it does not work in any real
shaders (it only works in software shader kind used to fill in procedural
textures aka "tx_*" shaders).
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