Question regarding UDMIs and textures

Development Asset Creation Photogrammetry
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1

Hello,

I’m working on this cliff side with caves. I have a problem with the unwrap and texturing, when exporting from RC, the models are separated but UDIMs that’s fine by me but my problem is, each UDIM uses multiple textures/materials. I’m going to display this project on the web using Three.js, unfortunately it does not support UDIMs (not officially anyway) so I had to cut the parts by texture, making the new parts shredded and heaps of problems came with that!

01.PNG
01.PNG1920×1050 346 KB

so this is the project. As seen, there are 21 textures and 21 model part.

02.PNG
02.PNG1920×1050 226 KB

let’s take this part, it uses 3 sup-sections of 3 textures.

03.PNG
03.PNG1920×1050 525 KB

if I selected all faces that are included in 1 texture/UDIM it’s going to be shredded cheese! and as I said, that will produce a lot of problems.

My question is, is there a way to make RC cut the models into parts and keep all faces of said part in one UDIM? I think it has something to do with the “Gutter” setting but no clue!

Thanks.

2

You can cut models into parts - filter out triangles, or use the Cut by Box tool (it is not possible to separate into specific shape parts), but this will also remove the unwrap from those parts. Since the unwrap gets removed, you will have to create a new unwrap on those parts, and that means the textures too.