After importing an OBJ with the UVs arranged as above and reprojecting the textures, when I export from RC I get the results as attached. At some point all the UVs are being moved into the 0-1 space and textures are baked on top of each other.
I honestly can’t understand how this can be caused by the OBJ. There’s nothing in the format that specifies a ‘UDIM’, they’re simply values outside the range 0-1. For example when opening an OBJ in a text editor, the UV coordinates of a ‘UDIM’ simply look like this:
- Code:
vt 4.54622 0.504682
vt 4.54185 0.500253
vt 4.55087 0.489552
vt 4.5559 0.493019
vt 4.55762 0.477589
vt 4.5631 0.480019
vt 4.56197 0.464828
vt 4.56769 0.466182
vt 4.56385 0.451732
vt 4.56961 0.452009
vt 4.56331 0.438754
vt 4.56892 0.437989
vt 4.56045 0.426306
vt 4.56576 0.424568
vt 4.55547 0.414718
vt 4.56034 0.412103
vt 4.54858 0.404228
vt 4.55294 0.400849