I have been trying to export motion vectors from 3ds max to nuke. I have tried the p_motion_to_rgb shader numerous settings(raster space, camera space, reelsmart) raster space is supposed to be the solution! but it doesn't seem to work.
I have tried with the velocity pass in render elements and/or motion blur on with 1 sample to force the motion vectors into the buffer.
Also tried max 2010 connection extensions mental ray velocoty frame buffer saved to exr files (rgb,rgba,xyz,xy,uv) to no avail.
Has anyone been clever enough to get the right vectors into nuke?