Multiple UDIM tiles are not baked #95190
Operating system: Windows-10-10.0.19042-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 496.49
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash:
Worked: (newest version of Blender that worked as expected)
Short description of error
Dalai Felinto asked me to report this as a bug via blender.chat
When trying to bake to an object with uv's outside of UDIM 1001 (outside 0-1 space), only the pixels in UDIM 1001 (inside 0-1 space) is baked. This happens even when the target texture contains multiple UDIM tiles
Exact steps for others to reproduce the error
- Open the attached .blend
bake to udims.blend
- Press "fill tile" in the uv editor
- Select the text objects and then the mesh object "bake target"
- Press bake in the render properties
- You should now be able to see an incorrect bake result in the uv ediors image
Changed status from 'Needs Triage' to: 'Needs User Info'
UDIM baking still remains to be implemented and, I think, has never worked correctly. 2.93.x shows a slightly different result but ultimately the same. See #72390/T85815
@DanielBystedt Did prior versions work better and/or more completely than 3.0?
Ah, I should have added that info. You are correct. UDIM has never worked when it comes to baking. I asked Dalai Felinto if I should add it as a design task or similair, but he suggested I'd add it as a bug.
It looks like the documentation is all there in #72390 (Improve UDIM functionality) / #85815 (can't bake udims texture). Perhaps this bug report just becomes an annoying duplicate. Feel free to remove it or flag as duplicate if you like.
Changed status from 'Needs User Info' to: 'Confirmed'
Making this report the primary "To Do" item since it is more complete vs the older one. When someone attempts to implement baking properly they can use this report for verification etc.
This issue was referenced by
Amazing! You are my hero Brecht!
It seems that UDIM baking now works just fine with setup in the shading editor. However UDIM baking still does not seem to work with the multi resolution modifier
My mistake. Bake from multires works. I must have been tired when I tried it last night
No due date set.
No dependencies set.
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?