Cryptomatte is here - Amazing!

Support Compositing and Post Processing
3

It’s working perfectly so far. There are a few caveats though that I partly mentioned in this older Cryptomatte thread.

  1. Use multichannel EXR with 32-bit float depth. 16-bit half-float is going to mangle the insanely high and low color values that Cryptomatte needs to store all the info. 32-bit should be forced by Blender if one uses Cryptomatte.

  2. Don’t use a lossy compression type in EXR (like e.g. DWAA) because this will also destroy the info Cryptomatte needs.

  3. Apart from that the previous post before mine in this thread shows all the “magic” needed :wink:

  4. I tried the EXRs from Blender in Nuke, Fusion, Natron and Houdini in combination with their either native Cryptomatte support or the official plugins. None of them worked out-of-the-box. I guess it’s because of the naming scheme of Blender which is somewhat odd.