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mesa/main: set PREFER_DP4 to match position_invarient code

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This is a quick fix for z fighting in quake4 caused by the mismatch
between vertex transformation here and in the position_invarient code.
Full fix would be to make this driver-tunable and adjust both
position_invarient and ffvertex_prog.c code to respect driver
preferences.
This commit is contained in:
Keith Whitwell
2009-05-01 18:20:42 +01:00
parent 1ed90091be
commit 751f73e281
1 changed files with 1 additions and 1 deletions
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src/mesa/main/ffvertex_prog.c
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@@ -319,7 +319,7 @@ static void make_state_key( GLcontext *ctx, struct state_key *key )
* multiplications with DP4's or with MUL/MAD's? SSE works better
* with the latter, drivers may differ.
*/
#define PREFER_DP4 0
#define PREFER_DP4 1
/* Use uregs to represent registers internally, translate to Mesa's