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When feeding back texcoords, don't divide by W. See bug 10913.

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Brian
2007-05-11 08:39:18 -06:00
parent 86e4f52f3c
commit 6c342ad859
1 changed files with 3 additions and 15 deletions
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src/mesa/swrast/s_feedback.c
+3 -15
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@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 6.3
* Version: 7.0
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -48,7 +48,6 @@ static void feedback_vertex( GLcontext *ctx,
{
GLfloat win[4];
GLfloat color[4];
GLfloat tc[4];
const GLfloat *vtc = v->attrib[FRAG_ATTRIB_TEX0];
win[0] = v->win[0];
@@ -61,18 +60,7 @@ static void feedback_vertex( GLcontext *ctx,
color[2] = CHAN_TO_FLOAT(pv->color[2]);
color[3] = CHAN_TO_FLOAT(pv->color[3]);
if (vtc[3] != 1.0 && vtc[3] != 0.0) {
GLfloat invq = 1.0F / vtc[3];
tc[0] = vtc[0] * invq;
tc[1] = vtc[1] * invq;
tc[2] = vtc[2] * invq;
tc[3] = vtc[3];
}
else {
COPY_4V(tc, vtc);
}
_mesa_feedback_vertex( ctx, win, color, (GLfloat) v->index, tc );
_mesa_feedback_vertex( ctx, win, color, (GLfloat) v->index, vtc );
}