diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2001-01-03 22:56:23 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2001-01-03 22:56:23 +0000 |
| commit | 1c768645c5449f3bb66edb198821cf4947998a68 (patch) | |
| tree | 34d9ad4cc78a8b29ba7468b25380b61d2d0bb556 /src/mesa/tnl/t_vb_fog.c | |
| parent | d14fce03f0b5db720cfc52a3c81f407626e28111 (diff) | |
added divide by zero check
Diffstat (limited to 'src/mesa/tnl/t_vb_fog.c')
| -rw-r--r-- | src/mesa/tnl/t_vb_fog.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mesa/tnl/t_vb_fog.c b/src/mesa/tnl/t_vb_fog.c index 38a80702ab..2adb8d1850 100644 --- a/src/mesa/tnl/t_vb_fog.c +++ b/src/mesa/tnl/t_vb_fog.c @@ -1,4 +1,4 @@ -/* $Id: t_vb_fog.c,v 1.1 2000/12/26 05:09:33 keithw Exp $ */ +/* $Id: t_vb_fog.c,v 1.2 2001/01/03 22:56:23 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -68,7 +68,10 @@ static void make_win_fog_coords( GLcontext *ctx, GLvector1f *out, switch (ctx->Fog.Mode) { case GL_LINEAR: - d = 1.0F / (ctx->Fog.End - ctx->Fog.Start); + if (ctx->Fog.Start == ctx->Fog.End) + d = 1.0F; + else + d = 1.0F / (ctx->Fog.End - ctx->Fog.Start); for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride)) data[i] = (end - ABSF(*v)) * d; break; |