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Bugfix #3526

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Division with zero caused wrong pixels to be rendered with Ortho camera.
This commit is contained in:
Ton Roosendaal
2005-12-09 17:22:50 +00:00
parent 7b2f1d4776
commit ccb285006c
1 changed files with 12 additions and 3 deletions
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15
source/blender/render/intern/source/rendercore.c
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@@ -2156,18 +2156,27 @@ void *shadepixel(float x, float y, int z, int facenr, int mask, float *col)
shi.co[1]= (0.5 + y - 0.5*R.recty)*fy - R.winmat[3][1]/R.winmat[1][1];
/* using a*x + b*y + c*z = d equation, (a b c) is normal */
shi.co[2]= (dface - shi.facenor[0]*shi.co[0] - shi.facenor[1]*shi.co[1])/shi.facenor[2];
if(shi.facenor[2]!=0.0f)
shi.co[2]= (dface - shi.facenor[0]*shi.co[0] - shi.facenor[1]*shi.co[1])/shi.facenor[2];
else
shi.co[2]= 0.0f;
zcor= 1.0; // only to prevent not-initialize
if(shi.osatex || (R.r.mode & R_SHADOW) ) {
shi.dxco[0]= fx;
shi.dxco[1]= 0.0;
shi.dxco[2]= (shi.facenor[0]*fx)/shi.facenor[2];
if(shi.facenor[2]!=0.0f)
shi.dxco[2]= (shi.facenor[0]*fx)/shi.facenor[2];
else
shi.dxco[2]= 0.0f;
shi.dyco[0]= 0.0;
shi.dyco[1]= fy;
shi.dyco[2]= (shi.facenor[1]*fy)/shi.facenor[2];
if(shi.facenor[2]!=0.0f)
shi.dyco[2]= (shi.facenor[1]*fy)/shi.facenor[2];
else
shi.dyco[2]= 0.0f;
}
}
else {