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added fog coord clamping

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This commit is contained in:
Brian Paul 2001-02-27 21:58:59 +00:00
parent 8753b1c397
commit 2eb801cda2
1 changed files with 5 additions and 3 deletions
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8
src/mesa/tnl/t_vb_fog.c
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@ -1,4 +1,4 @@
/* $Id: t_vb_fog.c,v 1.3 2001/02/06 04:06:36 keithw Exp $ */
/* $Id: t_vb_fog.c,v 1.4 2001/02/27 21:58:59 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -104,8 +104,10 @@ static void make_win_fog_coords( GLcontext *ctx, GLvector1f *out,
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;
for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride)) {
GLfloat f = (end - ABSF(*v)) * d;
data[i] = CLAMP(f, 0.0F, 1.0F);
}
break;
case GL_EXP:
d = ctx->Fog.Density;