KtoA 4.3.5.0. custom metadata args file

[tim.goransson6XTRC]

Hello,

When using 4.3.5.0, we lose all our custom metadata attached to the EXRs. 

Is there more info about the args files to attach custom metadata to the EXRs? I have the folder with all the args files, but I don't know which one I should modify to add what I need. 

"it is possible to generate your own args files from the python utilities included in KtoA"

which python utilities would this be? 

• Args generated from Arnold metadata: The args files that Katana uses for shaders and shader parameters are now generated from Arnold metadata. KtoA ships with the args files pre-generated, but it is possible to generate your own args files from the python utilities included in KtoA. The args data is now much more unified with the shader presentation in other Arnold DCC plugins, making it easier for users to move among the various packages with familiarity. (KTOA-981, KTOA-513)

[Stephen.Blair · Accepted solution]

Duplicate? ReelFx asked the same question elsewhere...

We talked with John A about this and he's looking into it and whether we can get a repro

The args should not change metadata on rendered EXR, the args are for UI purposes. 
For example, the help string for openpbr_surface.base_color in ktoa-4.3.5.0-kat7.0-windows\Args\openpbr_surface.args comes from metadata on the openpbr_surface shader node (added with AiMetaDataSetStr).

If you had a custom shader with its own metadata, you could use ktoa-4.3.5.0-kat7.0-windows\python\ktoa_build\generateArgs.py to generate the args file for Katana.