sandey/blender
1
0
Fork 0
forked from bartvdbraak/blender
Code Pull Requests Activity

don't divide by zero in get_ss_weights() which would set values - only to be overwritten.

Browse Source 
useful when using --debug-fpe since this isnt and exceptional case.
This commit is contained in:
Campbell Barton 2012-09-18 12:53:41 +00:00
parent 3069db2216
commit a53351d204
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
source/blender/blenkernel/intern/subsurf_ccg.c
View File

@ -513,10 +513,14 @@ static float *get_ss_weights(WeightTable *wtable, int gridCuts, int faceLen)
w2 = (1.0f - fx + fac2 * fx * -fac) * (fy);
w4 = (fx) * (1.0f - fy + -fac2 * fy * fac);
fac2 = 1.0f - (w1 + w2 + w4);
fac2 = fac2 / (float)(faceLen - 3);
for (j = 0; j < faceLen; j++)
w[j] = fac2;
/* these values aren't used for tri's and cause divide by zero */
if (faceLen > 3) {
fac2 = 1.0f - (w1 + w2 + w4);
fac2 = fac2 / (float)(faceLen - 3);
for (j = 0; j < faceLen; j++) {
w[j] = fac2;
}
}
w[i] = w1;
w[(i - 1 + faceLen) % faceLen] = w2;