forked from bartvdbraak/blender
Fix T49478: triangulate of face hangs Blender.
Another case of float imprecision leading to endless loop. INcreasing a bit 'noise threashold' seems to work OK. Not a regression, but might be nice to have in 2.78a.
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@ -239,8 +239,9 @@ static void polyedge_beauty_cost_update_single(
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const float cost = polyedge_rotate_beauty_calc(coords, tris, e);
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/* We can get cases where both choices generate very small negative costs, which leads to infinite loop.
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* Anyway, costs above that are not worth recomputing, maybe we could even optimize it to a smaller limit?
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* See T43578. */
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if (cost < -FLT_EPSILON) {
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* Actually, FLT_EPSILON is too small in some cases, 1e-6f seems to work OK hopefully?
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* See T43578, T49478. */
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if (cost < -1e-6f) {
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eheap_table[i] = BLI_heap_insert(eheap, cost, e);
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}
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else {
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