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Can't get Blender/Octane to generate cryptomatte

Posted: Thu Sep 21, 2023 6:33 pm
by Yngvai
I'm trying to set up a cryptomatte with RenderLayer ID. I have these options selected for my output:

Image
Image

The render is generating two files, one with Beauty in the name and the other with Combined in the name. However, no cryptomatte EXR file is being generated. And the "Combined" one has no cryptomatte info in it, because when I import it into AE and apply the cryptomatte effect, it says there is no cryptomatte layer information.

Not sure what I'm doing wrong?

Re: Can't get Blender/Octane to generate cryptomatte

Posted: Thu Sep 21, 2023 8:35 pm
by Yngvai
Further information...if I click "InstanceID", it will generate a cryptomatte EXR file for InstanceID. But it won't generate one for RenderLayer.

If I check all the cryptomatte boxes, I'll get cryptomattes for:

InstanceID
MatNode
MatNodeName
MatPinNode
ObjNode
ObjNodeName
ObjPinNode

Not sure why I won't get one for RenderLayer?

Re: Can't get Blender/Octane to generate cryptomatte

Posted: Fri Oct 06, 2023 8:29 am
by J.C
Have you enabled Octane Render Layers?

Re: Can't get Blender/Octane to generate cryptomatte

Posted: Sat Oct 07, 2023 1:32 pm
by Yngvai
Yes I had but still wasn't working. But I ended up finding a different strategy to accomplish the same thing (rendering a LayerID pass and then using Keylight to key out the colored ID's I didn't want and then using the layers as track mattes in AE).