Texture baking produces only empty textures in 3.4.1 #103859
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Reference: blender/blender#103859
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System Information
Operating system: Ubuntu 20.04.4 LTS
Graphics card: NVIDIA GeForce RTX 3070
Blender Version
Broken: 3.4.1
Worked: 2 months ago?
Short description of error
Texture baking will finish immediately saying "Baking map saved to internal image, save it externally or pack it
" but only produce an empty texture.
Projects that are somewhat older, still seem to work.
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
Go to shading, select image texture node, press bake.
NotBaking.blend
Added subscriber: @Erik-Arndt
Ok, I just did a regular rendering and got the error message "OpenImageDenoiser is not supported on this CPU".
I turned denoising off and now texture baking works again. I think it would be good if such an error message would be shown during texture baking too.
Added subscriber: @lichtwerk
Changed status from 'Needs Triage' to: 'Needs User Info'
Thx reporting!
This could be improved, yes.
I think you would be getting this message with logging? https://docs.blender.org/manual/en/3.5/advanced/command_line/arguments.html#logging-options
Just to be clear though, does regular rendering finish (just without denoising?) Or does that produce blank images as well?
(if rendering has this "workaround" / "feature drop" then baking should probably have it as well...)
Yes that's the terminal output:
I also noticed, and it seems to match with "current value '4' matches no enum in 'CyclesRenderSettings', '', 'denoiser'" that the denoiser in the viewport settings has the "Automatic" option, while the render settings doesn't:
And no, rendering and baking won't even start, both produce an empty image.
Changed status from 'Needs User Info' to: 'Needs Triage'
Added subscriber: @PratikPB2123
Changed status from 'Needs Triage' to: 'Archived'
Hi, as said in the message, for OpenImageDenoiser to work, CPU with SSE 4.1 and up are required.
Rendering/baking is still possible on older CPUs without OpenImageDenoiser. see: #96651#1326281
Closing this ticket for now.
If there is any misunderstanding, feel free to comment or reopen the ticket.
Could you please read my description again?
The problem was never that the denoiser doesn't work, but that you don't get any warning when baking. You press bake and nothing happens. It took me a week to notice by coincidence that it was because an unsupported feature is turned on by default.
Changed status from 'Archived' to: 'Needs Developer To Reproduce'
Added subscriber: @ThomasDinges
@ThomasDinges hi, can we add a warning message which is more visible?
Changed status from 'Needs Developer To Reproduce' to: 'Confirmed'
I checked and there is an error when rendering, but indeed for baking this is only reported to the console.
While this can be improved, in practise we will likely require SSE4 for all of Blender sometimes this year, so wouldn't spend time on this now.
@Erik-Arndt I am curious what CPU do you use?
I ran this Blender instance in a VM.
Changed status from 'Confirmed' to: 'Archived'
I guess your host CPU is capable of SSE4 but in the vm it's emulated without it. Not a configuration we officially support. Therefore I am closing this.