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mesa: added comment about gl_PointCoord

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Brian Paul 2008-08-11 15:05:57 -06:00
parent ac0d19601c
commit 3a428aca93
1 changed files with 1 additions and 0 deletions
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src/mesa/swrast/s_fragprog.c
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@ -129,6 +129,7 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine,
if (ctx->Shader.CurrentProgram) {
/* Store front/back facing value in register FOGC.Y */
machine->Attribs[FRAG_ATTRIB_FOGC][col][1] = 1.0 - span->facing;
/* Note FOGC.ZW is gl_PointCoord if drawing a sprite */
}
machine->CurElement = col;