UDIMs not packing to blend file and causing color artifacts #117411
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Reference: blender/blender#117411
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System Information
Operating system: Linux-6.7.0-gentoo-x86_64-AMD_Ryzen_9_5950X_16-Core_Processor-with-glibc2.38 64 Bits, X11 UI
Graphics card: NVIDIA RTX A6000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 545.29.06
Blender Version
Broken: version: 4.1.0 Alpha, branch: main, commit date: 2024-01-22 11:27, hash:
29aaa2922d1dWorked: (newest version of Blender that worked as expected)
Short description of error
Packing UDIM image textures in the blend file is not working. Additionally, when loading such a file there are colored artifacts visible around the edge of each UDIM tile. These artifacts don't show up in the image editor, but they do not disappear when painting over them.
Exact steps for others to reproduce the error
File:
geonodes_udim.blend
From scratch:
I'll take a look but I'm not able to reproduce the scenario from scratch. How did you perform the initial packing step for that image?
Typically you would see something like
Packed to memory image "the path"as the UI message and you would also see the following UI:I'm guessing the problem is that I didn't start with a UDIM on disk, but created it directly in Blender, so there is no path on disk to reference. I'll add my exact steps to the description