mixed bvh4 working with tris and hair, performance for tighten already slightly higher than old hair code
no longer loosing hair during build
using GeneralSplit
object type split working
bugfix in object type split
updates
first compiling version of spatial splits
added BuildTask to prepare for breadth first build
parallel breadth first build working
spatial split for triangles seems to work
updates
updates
spatial split performance of bvh4.triangle4_bezier1 builder2 matches reference implementation