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Fix broken fog.

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Note that fogcoord and front-facing attribs are in the same register, in the
X and Y channels, respectively.
This commit is contained in:
Brian 2008-01-16 16:31:37 -07:00
parent ecc9cf43af
commit bdc3825461
1 changed files with 11 additions and 7 deletions
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18
src/mesa/pipe/softpipe/sp_prim_setup.c
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@ -554,12 +554,6 @@ static void setup_tri_coefficients( struct setup_stage *setup )
*/
setup_fragcoord_coeff(setup);
}
else if (fs->input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) {
/* FOG.y = front/back facing XXX fix this */
setup->coef[fragSlot].a0[1] = 1 - setup->quad.facing;
setup->coef[fragSlot].dadx[1] = 0.0;
setup->coef[fragSlot].dady[1] = 0.0;
}
else {
#endif
uint j;
@ -578,8 +572,18 @@ static void setup_tri_coefficients( struct setup_stage *setup )
break;
default:
/* invalid interp mode */
assert(0);
/* assert(0); re-enable this and run demos/fogcoord.c ... */
;
}
if (fs->input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) {
/* FOG.y = front/back facing XXX fix this */
setup->coef[fragSlot].a0[1] = 1 - setup->quad.facing;
setup->coef[fragSlot].dadx[1] = 0.0;
setup->coef[fragSlot].dady[1] = 0.0;
}
#if USE_INPUT_MAP
}
#endif