multiple materials merged in one udim

[janshao]

Hi.

I was wondering if that is an issue or if I am using a wrong workflow.
I have an asset with lets say 1 udim, but in maya I am assigning materials onto different object parts.
When loading in substance I will get my materials separated but sharing the same udim. So far so good.

When exporting I expected that all materials merge into the same udim map, but instead I'll get a map for each material, even its sharing the same udim?
Can I somehow merge them together in one udim during export?

Or is it intended to work this way?

Thanks
Jan

[volker]

It is intended to work this way. If you set up your scene using multiple materials/ TextureSets, you cannot merge them upon export. You need to either combine the exported textures afterwards manually, use a tool ( https://share.substance3d.com/libraries/2325 , not sure if this still works with new versions of Painter though), or set up the scene so it only uses 1 TextureSet in the first place.

[daniel0711@web.de]

I assume I have the same Problem then?
I thought I could sub "divide" the Texture sets by materials to even have it easier to isolate them in SP.
On export i realized it wont merge them into their relating UDIM sets but just name them exactly with the texture sets name. (_laces.diff ect.. so no UDIM tag).

So how can we keep the UDIM tags at the end? using legacy workflow or unassign materials before importing a mesh?

[ochtupus]

Hi, i have the same problem.

It would be nice and somehow expected to be able to export udim maps / udim centric texture sets.
Especially if you have complex models e.g. a car, shading the model beforehand makes the texturing process 1000x faster/easier.

Maybe you could look into that for future updates.

Is there a best practice to merge those textures outside of SP?

[daniel0711@web.de]

I was wondering too but found it. Its not $uvtile or $textureSet (legacy workfflow) set but

$udim

sure makes sense - only confusing if you used substance since years and used $textureSet