Cycles Render Light Paths #89199
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Reference: blender/blender#89199
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System Information
Operating system: Windows 10
Graphics card: Intel UHD Graphics 620
Blender Version
Broken: 2.93
Worked: Not Known
Short description of error
Render Properties/Light Paths/New Preset
Create a new preset results in the following error message:
Error Message: Python: Traceback (most recent call last): File: "C:\Program Files\Blender Foundation\Blender 2.93\2.92\scripts\startup\bl_operators\presets.py" line 171, in execute value=eval(rna_path) Files ", line 1, in AttributeError: 'CylesREnderSettings' object has not attribute 'blur_glossycycles' location:
Following which the New Preset is not set.
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
Added subscriber: @CornishGrandad
Added subscriber: @PratikPB2123
Changed status from 'Needs Triage' to: 'Confirmed'
Can confirm. Will bisect that or may be I will try to find solution shortly. (Can replicate in 2.93.0LTS and also with 3.0.0)
Added subscriber: @Harvester
Here on:
System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.59
Blender Version
2.93.0, branch: master, commit date: 2021-06-02 11:21, hash:
84da05a8b8
I can replicate the issue, and I get the same error message related to the attribute "blur_glossycycles" not available for the "CyclesRenderSettings".
Writing Preset: 'D:\Blender_2.93_stable\2.93\scripts\presets\cycles/integrator\TEST_PRESET.py'
Python: Traceback (most recent call last):
AttributeError: 'CyclesRenderSettings' object has no attribute 'blur_glossycycles'
In effect, the full datapath of the Filter Glossy option is: bpy.data.scenes["Scene"].cycles.blur_glossy.
Furthermore, despite the above error message, the preset is saved but selecting it doesn't seems to work (non changes in the attributes), and I cannot delete it getting this error message, even after having selected another preset in the list:
Traceback (most recent call last):
PermissionError: [WinError 32] Impossibile accedere al file. Il file è utilizzato da un altro processo: 'D:\Blender_2.93_stable\2.93\scripts\presets\cycles/integrator\TEST_PRESET.py'
The message says that the file is being used by another process and it cannot be accessed or deleted in this case. To be able to delete that preset I had to close and restart Blender, then I can delete it.
Just a brief update. While this issue is still present in 2.93.7 LTS (and possibly 2.93.8), it's no longer happening in version 3.0.1, nor in 3.1 Alpha, and neither in 3.2 Alpha.
Changed status from 'Confirmed' to: 'Resolved'
Added subscriber: @ThomasDinges
This has been fixed by @ThomasDinges :
1c0be7da4c
Thomas, can we backport this commit to 2.93?
Backported to 2.93
dd444323f3