Quads ptex improvements.  Looks fairly correct on kava leaves.
Quads ptex improvements.  Looks fairly correct on kava leaves.

# Conflicts:
#	ospray/render/scivis/SciVisRenderer.ispc

ospray/OSPRay,ospray/OSPRay,ospray/OSPRay,wilsonCernWq/ospray,ospray/OSPRay,wilsonCernWq/ospray,wilsonCernWq/ospray