Sergey Sharybin
8e35a968c5
This switches evaluation of vertices which are on the boundaries of PTex faces to a single threaded one. While this introduces some slowdown it fixes ambiguity of PTex index used to evaluate particular vertex. Possible alternative solutions would be: - Do some pre-calculation of index, then do evaluation in threads. - Try using Gregory patches and see if that makes any affect. Fix T60235: Flickering of object instances