Custom Katana exrheaders

[tim.goransson6XTRC]

Hello!

Is there a way to add custom EXR metadata in KtoA?

The Foundry has this page with instructions, but it only seems to work with Prman. I've confirmed that this does not work with Arnold, as when I bring the EXR into Nuke, none of my added exrheaders show up.

Any ideas?

Thank you!

[Stephen.Blair]

You need to set it using the "custom attributes" entry in the ArnoldOutputChannelDefine node.

There is more info on setting custom metadata at the bottom of this page: https://docs.arnoldrenderer.com/x/bwsdAg

custom_attributes 5 1 STRING "INT my_int -2323" "FLOAT \"my float\" -23.23" "POINT2 my_point2 -23.23 -23.23" "STRING my_string \"twentythree twentythree\"" "MATRIX my_matrix 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16"

[tim.goransson6XTRC]

@Stephen Blair Thanks for this! You wouldn't happen to have an example of setting an attribute for this would you? I might just have the syntax wrong, but it's still not working.

[Stephen.Blair]

@Tim Goransson Here's an example scene:
custom_metadata.katana.txt

[tim.goransson6XTRC]

@Stephen Blair Thanks for this example! Managed to get it to work when rendering locally and saving to a file. The metadata doesn't seem to show up when it comes off the farm though, but I think we can manage from here. Thanks again!