cryptomatte not working on render

[Anonymous]

hi, i´m tryting to get the cryptomatte aov working but i can´t, its suposed to be correctly but when i start to render it appear black

its arnold 5, and i dont know what i´m doing wrong... if you can help me would be apreciated!

[sean.heasley]

Hi @Anonymous and welcome to the community!

For starters, have you tried increasing the intensity of your light and or using a different light like a SkyDome?

If that doesn't work, can you try rendering without the cryptomatte shaders? I just want to make sure the issue is specifically from the cryptomatte and not something else with Arnold.

Let me know if anything changes!

[Stephen.Blair]

Exactly what version of Arnold?

And check the Arnold log (with verbosity level = Warnings + Info) for errors and warnings. That's the first thing you should do, to avoid wasting time troubleshooting.

[sean.heasley]

Hi @Anonymous

I'm just checking in to see if you need more help with this. Did the suggestions that @Stephen.Blair and I provided work for you?

If so, please click Accept as Solution on the posts that helped you so others in the community can find them easily.

[Anonymous · Accepted solution]

I encountered the same issue with Arnold 5.0.1.0, upon upgrading to Arnold 5.0.2.3, it works fine.