Ok. So I am trying to figure out if it would be possible to replace substance with Copernicus. And I am kind of at an impasse trying to figure out a good look dev environment particularly since Copernicus does not seem to handle UDIM workflow. I feel like cops is almoooost there.
Have anyone have experimented on UDIM workflow with cops?
The info out there is not that great.

while I personally havent used it, COPs since 21 support UDIMs to certain extend

if you already tried it and hitting issues, you may want to be more specific

Absolutely.
Right now I am trying to figure out how to set up a proper workflow.
The issue now is that cops has no way to preview all UDIMs at once, the way you will preview it on Painter. I will say that workflow wise Cops is closer to Designer but the potential to make it closer to painter is almost there.

Right now I am thinking a cop network to work but the scene viewer set on the stage to preview the final outputs. But as other mentions that will probably mean constantly rendering the maps before previewing. I am pretty sure this probably happens in the background in painter anyway. As multiple UDIMs is not something you want to constantly cook.

Will try to set up a test case and share. I started this post just in part to start the conversation.

Yeah, this is a use case we have on our radar but definitely didn't get completed for H21 :<

We have a lot of the pieces but are frustratingly close to being able to answer well.

In an ideal world, you'd just wire into the Preview Material COP and see your multiple UDIMs. But we weren't able to get the viewport to cook the separate UDIMs live.

So currently the "workflow" involves saving out your UDIMs to update. If they are contiguous, this can be done with the ROP Image Output with a single click; but this is not the smooth live update we desire.

Glad to see it’s in your radar. No complaints here,you guys did an amazing job with Copernicus. So thanks for the hard work.

I will find a work around then for the time being.