d7e4f920fd
This commits implements threaded sorting of references when looking for object spatial split. It mainly useful when doing initial binning, which happens from main thread. Gives nice speedup of BVH build for Bunny.blend: 36sec vs. 55sec for the Rabbit mesh BVH build. On more complex scenes the speedup is probably minimal, but still nice to have more instant rendering for simplier scenes. Some further tests with production scenes would be interesting. Reviewers: juicyfruit, dingto, lukasstockner97, brecht Reviewed By: brecht Differential Revision: https://developer.blender.org/D1928