TD Anisotropic Kuwahara v1.0
https://github.com/yeataro/TD-Anisotropic-Kuwahara
Migrate Jan Eric Kyprianidis' Anisotropic Kuwahara filter to TouchDesigner.
Original code by Jan Eric Kyprianidis <www.kyprianidis.com>
https://code.google.com/p/gpuakf/
https://code.google.com/p/polyakf/
Unfinished features: Kernel generation
