hi blender foundation fun. My name is Paolo from Catania (Italy). For supporting develop used pyCuda for Cuda support. http://mathema.tician.de/software/pycuda/ https://www.youtube.com/watch?v=5XjxTBgETfU I have imac late 2009 and don't support this. Another library for OpenCV. (For tracking) *opencv*.org/ I hope for help for develop.