Karma Cryptomatte Nuke

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Hello,

I rendered a crypotmatte with Karma in Houdini19. In Houdinis Compositor everything is working as expected but in Nuke, the crypto plugin doesnt find any layers.


Cryptomatte in Houdini Comp. Working as expected.


This is how the channels end up in Nuke with the Karma rendering.


Mantra crypto channels


After copying the CryptoObject channels to CryptoObject00 , Nukes plugin finds the layer but gives noisy results.

Is this a known problem or am I doing something fundamentally wrong?
Cheers martin
Edited by louisx - Nov. 5, 2021 08:46:29

Attachments:
crypto_channels.png (37.3 KB)
mantraCryptoChannels.png (21.2 KB)
nukeCrypto_copy.png (64.0 KB)
houdinicomp.png (44.4 KB)

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This is a bug in Nuke. The Foundry are aware of the issue and are working with Sidefx to support cryptomatte in multipart exr.
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As a workaround, you may pass '--exrmode 0' into husk commandline argument (or use 'icp' tool post render) to output old fashioned non-multipart EXR.
Edited by dlee - Nov. 5, 2021 12:24:29
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Hi. I submitted it as a bug during the Beta of H19 to Foundry. They have given it a high priority to fix but I have not heard anything back since. If I do I'll repost here.

Best

Mark
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Thanks for the Answers!

dlee
As a workaround, you may pass '--exrmode 0' into husk commandline argument (or use 'icp' tool post render) to output old fashioned non-multipart EXR.

This was very helpful, thanks again.
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Does anyone know a workaround in Fusion Studio? The same problem exists. No layer/index/channel information for layer: 'CryptoObject' can be found.
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