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Fix #27873: nan pixels in render with degenerate faces.

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This commit is contained in:
Brecht Van Lommel
2011-07-06 09:15:18 +00:00
parent 4260258bb3
commit febce577ba
1 changed files with 5 additions and 3 deletions
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8
source/blender/render/intern/source/shadeinput.c
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@@ -771,7 +771,8 @@ void shade_input_set_uv(ShadeInput *shi)
t00= v3[axis1]-v1[axis1]; t01= v3[axis2]-v1[axis2];
t10= v3[axis1]-v2[axis1]; t11= v3[axis2]-v2[axis2];
detsh= 1.0f/(t00*t11-t10*t01);
detsh= (t00*t11-t10*t01);
detsh= (detsh != 0.0f)? 1.0f/detsh: 0.0f;
t00*= detsh; t01*=detsh;
t10*=detsh; t11*=detsh;
@@ -1272,8 +1273,9 @@ void shade_input_set_shade_texco(ShadeInput *shi)
s11= ho3[1]/ho3[3] - ho2[1]/ho2[3];
detsh= s00*s11-s10*s01;
s00/= detsh; s01/=detsh;
s10/=detsh; s11/=detsh;
detsh= (detsh != 0.0f)? 1.0f/detsh: 0.0f;
s00*= detsh; s01*=detsh;
s10*=detsh; s11*=detsh;
/* recalc u and v again */
hox= x/Zmulx -1.0f;