diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2001-02-07 18:36:52 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2001-02-07 18:36:52 +0000 |
| commit | 5c55aa4e61adcf136a18f2aea08a44f69840c4a0 (patch) | |
| tree | 7c0372d41d498dbde5d7760d9925b26b5294f1bb /src/mesa/swrast/s_linetemp.h | |
| parent | a1f1586bcb9fcd4a30930fd14b73323642ce85c5 (diff) | |
fixed divide by zero problem
Diffstat (limited to 'src/mesa/swrast/s_linetemp.h')
| -rw-r--r-- | src/mesa/swrast/s_linetemp.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_linetemp.h b/src/mesa/swrast/s_linetemp.h index 8de9f8ee9dd..e451f448557 100644 --- a/src/mesa/swrast/s_linetemp.h +++ b/src/mesa/swrast/s_linetemp.h @@ -1,4 +1,4 @@ -/* $Id: s_linetemp.h,v 1.4 2001/01/23 23:39:37 brianp Exp $ */ +/* $Id: s_linetemp.h,v 1.5 2001/02/07 18:36:52 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -349,10 +349,11 @@ #endif #ifdef INTERP_TEX { - const GLfloat invQ = 1.0F / tex[3]; + const GLfloat invQ = tex[3] ? (1.0F / tex[3]) : 1.0F; fragTexcoord[0] = tex[0] * invQ; fragTexcoord[1] = tex[1] * invQ; fragTexcoord[2] = tex[2] * invQ; + fragTexcoord[3] = tex[3]; } #endif #ifdef INTERP_MULTITEX @@ -364,6 +365,7 @@ fragTexcoord[u][0] = tex[u][0] * invQ; fragTexcoord[u][1] = tex[u][1] * invQ; fragTexcoord[u][2] = tex[u][2] * invQ; + fragTexcoord[u][3] = tex[u][3]; } } } @@ -518,10 +520,11 @@ #endif #ifdef INTERP_TEX { - const GLfloat invQ = 1.0F / tex[3]; + const GLfloat invQ = tex[3] ? (1.0F / tex[3]) : 1.0F; fragTexcoord[0] = tex[0] * invQ; fragTexcoord[1] = tex[1] * invQ; fragTexcoord[2] = tex[2] * invQ; + fragTexcoord[3] = tex[3]; } #endif #ifdef INTERP_MULTITEX @@ -533,6 +536,7 @@ fragTexcoord[u][0] = tex[u][0] * invQ; fragTexcoord[u][1] = tex[u][1] * invQ; fragTexcoord[u][2] = tex[u][2] * invQ; + fragTexcoord[u][3] = tex[u][3]; } } } |