added Bezier1i class
added first simple version of bezier curve intersection, not tested yet
added tutorial07 for hair
first experiments with hair generation on cube, still not compiling nor working
hair generation does not crash anymore
Merge branch 'master' into swoop
hair accel gets built
first simple ray/hair intersection working
first curved hair working
hair works even better
Merge branch 'master' into swoop
Merge branch 'master' into swoop
plane with hair working
updates
avx subdivision of 3 levels at once working
added support for per ray precalculations of intersectors
some optimizations
transparent shadows for hair working
simple hair shading
added intersection filter support to bezier intersector