Review: Lut1D/3D ops dont crash on nans


Jeremy Selan <jeremy...@...>
 

https://github.com/imageworks/OpenColorIO/pull/122

The lut1d/3d ops would crash if applied to images with nan values.
Now, nan values are preserved.

Further work needs to be done to unify handling of nan/inf values
across all code paths (such as SSE vs. non SSE lut1d), but not
crashing is a great start.

-- Jeremy