Cuda failing to respect texture coordinate for image vector in principle Hair BSDF #92128
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Reference: blender/blender#92128
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System Information
Operating system: Windows 10
Graphics card: GTX 1080
Blender Version
Broken: 3.0
Worked: 2.93.5
Cuda would map to the first point in a UV because when I use a mapping node and use location I can move it across to parts of my image to an individual pixel on that image.
OptiX and CPU/only works without issue.
https://i.imgur.com/Ea4DNep.png
https://i.imgur.com/NrG5gfU.png
https://i.imgur.com/68OHWHp.png
Cuda Hair Test.blend
Added subscriber: @Marcus-Stange
The issue still present in :
Added subscriber: @iss
Changed status from 'Needs Triage' to: 'Confirmed'
Can confirm 3.0 not working, can't open this file with 2.93.4 - it says file format not supported. I am not aware of such break in compatibility though @Marcus-Stange is this something that happens on your end too?
Added subscriber: @antoine_510
@iss I would believe they added no compatibility patch temporally to prevent 3.0 blend files from breaking unexpectedly. They might add it back in a later patch. I also tested that you can still back port if needed with copy and pasting data blocks between blenders usually with a version number at a time. I did a 3.0->2.95->2.94->2.93->2.90 testing to see if it was bugged in any earlier versions.
Removed subscriber: @antoine_510
Well I can open files saved with 3.0 in older versions, that's why I am wondering. In any case it's not relevant to this issue.
Added subscriber: @leesonw
Does anyone know when this first occurred or has it always happened with CyclesX?
Added subscriber: @brecht
I came across this in the victor benchmark scene, I have a fix in the works.
So tried testing with the eariler verisons that in blender builds
blender-3.0.0-alpha+cycles-x.b8238733598d-windows.amd64-releasealso have the issue where it says file not supported. Still can copy and paste into blender without issue. And it does render correctly in blender with cuda. But funny enough that EVEE did not work correctly. https://i.imgur.com/3dZd1lX.pnghttps://i.imgur.com/ONVvKQE.jpeg
Will test more later.
This issue was referenced by blender/cycles@ba645a61ca
This issue was referenced by
53f25df5bcChanged status from 'Confirmed' to: 'Resolved'