- primitive clipping is now more paranoid about roundoff errors
- significantly improved the kd-tree benchmark "kdbench"
- fixed a parallelization-related bug in the kd-tree builder
- fixed some remaining floating point issues in the min-max binning code
- completely moved TriMesh over to a more compact SoA representation
- the OpenGL renderer now sends smaller packets of geometry to the GPU, which
helps keep the operating system more responsive (NVidia drivers didn't like
the previous behavior much).