I'm trying to figure out how to output exr files with proper cryptomattes, that I can use in After Effects. Unfortunately there is not much information out there on how to render them using Cinema 4D.
Inside Octane LV I can see the cryptomattes (nice pastel colours), so I think they are properly set up and I selected "EXR (Octane)" in the Octane render settings.
Hey all, I'm just updating this post (16.12.2019) , because I've got some new information. I now know, that the Windows version of R21 has a bug with DWAA, that's what caused the issue with the images in the first place using C4Ds multilayer output. Also we currently need to use the Octane EXR output and "CryptoMaterialNodeName" for stable matte generation between renderjobs.
You can still find the original post below for reference.
Can somebody share their Cryptomatte workflow?If I render using the picture viewer with no output path in the Octane render settings, they show up as completely green and yellow in the PV. If I import these renderings in AE using ProEXR 2.0 there is something wrong, they appear black without any effect and using EXtractoR (without choosing a layer) the beauty layer is displayed messed up.
When I try to use the Cryptomatte effect I get the error "No cryptomatte layers found." Most of the time AE crashes afterwards.
- Messed up beauty layer
When I specify an output path in the Octane render settings there is a second exr file and in AE it seems to contain cryptomatte layers, but the result is completely unusable, I can see some jumbled up outlines, but that's it.
- Octane EXR cryptomatte
Here are some questions, that are important to us:
Can cryptomattes be rendered and saved without specifying a path in the Octane render settings and without using Octane standalone? No.
Can you render cryptomattes using DWAA compression? Yes (using EXR (Octane))
Can you render cryptomattes using the "half-float" option? Seems to work fine.
Does tonemapping work with cryptomattes?
Thank you!
