started implementing bvh4hair
implemented bvh4hair_intersector, not yet compiling
updates
BVH4Hair compiles
bvh4hair builder runs, bvh4hair_intersector still crashes
cleaned up imagemagick loader code
bvh4hair working
added bvh4hair::Node type
bvh4hair builder creates also aligned nodes
some performance optimizations for bvh4hair
added variant with two downtraversal loops, one for aligned and unaligned nodes
fast transpose for AffineSpace3fa
updates
merge
added hack to make bvh4hair an 8-wide BVH
8 wide bvh4hair is working
modified SAH heuristic in bvh4hair builder to count blocks of 4/8 hairs
calculating better bezier curve bounds in bvh4hair builder
fixed ICC version output
updates