Adding NaN support for the shader, to allow masking
Adding NaN support for the shader, to allow masking

smerdis/pycortex,gallantlab/pycortex,CVML/pycortex,gallantlab/pycortex,smerdis/pycortex,CVML/pycortex,gallantlab/pycortex,smerdis/pycortex,CVML/pycortex,CVML/pycortex,smerdis/pycortex,gallantlab/pycortex,smerdis/pycortex,CVML/pycortex,gallantlab/pycortex