VDM sculpting: 'Apply Sculpt' fails

[Michaelknubben]

Blender: 4.3.2
Ucupaint: 2.1.5
OS: Windows 11

During sculpting:

After clicking 'Apply Sculpt to Image':

The object is a subdivided (and applied) cube with automatic uv's that look like this:

Certainly not great, but this was just a test of the new feature.

I can send the file to aid in reproducing the issue, hopefully it's helpful. Uploading here fails, but if you give me an email I can send a drive link.

Michael

[ucupumar]

I see, you can put the file link here.

[Michaelknubben]

https://drive.google.com/file/d/1AAyxIIZlFIpIvWOgAWJZWjnPfUxHFdHm/view?usp=sharing

[ucupumar]

Yeah I can confirm the result is broken. I'll check what's the problem there later

[ucupumar]

The main problem with your file is there are overlapped UVs. Please make sure you use the proper UV while using ucupaint.

I still found a few other bugs while testing your files tho, like in Ucupaint 2.1.5, you should use 'Standard' color view transform to correctly apply sculpt as VDM. I already made a fix in the master branch so that you can use any color transform.