[Mesa-dev] GLSL swizzle lowering

Luca Barbieri luca at luca-barbieri.com
Tue Aug 31 11:01:10 PDT 2010

nv30 and nv40 support SEQ everywhere, and Marek's SEQ/DP4 seems optimal.

BTW, the nVidia Cg compiler (which can tell us what nVidia does)
doesn't seem to accept my naive attempts to index a vector in GLSL: is
something special needed to do it? (some version directive, or special

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