Hello Serif,
As a 3D artist we have to use many automatic created masks from our 3d apps, which are embedded in the exr or sometime in a seperate exr.
For this we mostly use Cryptomatte, which is open source (https://github.com/Psyop/Cryptomatte) . There are some implementations for Photoshop, but these plugin don't seem to work in Photo 1.8 . As Photo is really great in working with 32-Bit EXRs, this would be a really nice addition and another step forward.
More information about cryptomatte at the start of this tutorial: https://vimeo.com/261112430
Thanks a lot for your great software
Helge
