forked from bartvdbraak/blender
9946cca146
The issue was caused by SSS intersection code gathering all intersections without check for duplicated ones. This caused situations when same intersection will be recorded twice in the case if triangle is shared by several BVH nodes. Usually this is handled by checking intersection distance after sorting intersections (in shadow_blocked for example) but for SSS we don't do such sorting and using number of intersections to calculate various things. Didn't find anything smarter than to check intersection distance in triangle_intersect_subsurface(). This solves render artifacts in the cost of 1.5% slowdown of extreme case rendering (SSS object filling in whole FullHD screen). Reviewers: brecht Reviewed By: brecht Differential Revision: https://developer.blender.org/D2105 |
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