One of the most common tasks once your colour textures are painted is going to Zbrush or Mudbox to sculpt some heavy details based on what you have painted in your colour textures.
We all use UDIMs of course, but importing UDIMs in Zbrush is not that easy. Let's see how this works.
- Export all your colour UDIMs out of Mari.
- Import your 3D asset in Zbrush and go to Polygroups -> UV Groups. This will create a polygroups based on UDIMs.
- With ctrl+shift you can isolate UDIMs.
- Now you have to import the texture that corresponds to the isolated UDIM.
- Go to Texture -> Import. Do not forget to flip it vertically.
- Go to Texture Map and activate the texture.
- At this point you are only viewing the texture, not applying it.
- Go to Polypaint, enable Colorize and click on Polypaint from texture.
- This will apply the texture to the mesh. As it's based on polypaint, the resolution of the texture will be based on the resolution of the mesh. If it doesn't look right, just go and subdivide the mesh.
- Repeat the same process for all the UDIMs and you'll be ready to start sculpting.