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(parent: fcccf89) | patch
optimize per-pixel fog program
authorRoland Scheidegger <sroland@tungstengraphics.com>
Fri, 9 Feb 2007 18:21:29 +0000 (19:21 +0100)
committerRoland Scheidegger <sroland@tungstengraphics.com>
Fri, 9 Feb 2007 18:21:29 +0000 (19:21 +0100)
commitb2d30ca0cb01a80ff440a4a07b293daa16486e12
treeca1cc1841bc3bda1a4830994a27a5a3a59b71519tree
parentfcccf8943213a20957f305161e8aae7fef55baabcommit | diff
optimize per-pixel fog program

use the same internal state as for vertex fog. From the old implemenentation,
this changes a SUB+MUL into a MAD for linear fog, and saves a MUL for EXP/EXP2,
plus saves a (constant) parameter. While here, fix the broken (forgotten)
swizzling. (untested)
src/mesa/shader/program.c diff | blob | history
src/mesa/shader/programopt.c diff | blob | history