Trims panels in UDIMs best way to Substance Painter?

Support Materials and Textures
1

image
image487×905 34.6 KB

I have a few trim sheet panels that I want to bake and detail in Substance Painter;

  • all the texture sets will have to be in a single material
  • I want to have them sorted vertically in in the UV space
  • I know how to bake UDIMs on a single object already, but I’m a bit confused when it comes to trim sheets and UDIMs.

Questions:

  • is it best to bake each panel individually and then import each texture set in the final UDIM in Blender, or do I export from Blender all the highpoly in a single FBX, and the lowpoly in a single FBX, UV unwrapped to the UDIM tiles, and texture it all together?
  • if I go with the first way, are there any blunders in the importation that I have to be aware of?
  • if I go with the second way, is best that the lowpoly is merged in a single mesh in Blender, before exporting, or I can export them in a single FBX but as separate meshes (is there a difference?)

Thanks!