Sergey Sharybin 6b6c27694e Subsurf: Implement foreach traversal for subdivsion topology
This makes it more generic process to perform actions which
depend on ptex face + (u, v) and on subdivided vertex index.

Currently it is still just a subdivision calculation process,
but same foreach callbacks can easily be used to propagate
displacement from known vertex locations back to displacement
grids.
2018-08-22 10:21:45 +02:00
2018-04-24 12:26:37 +02:00
2010-10-13 14:44:22 +00:00
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