Regression: Cycles render crash using F12 render after running script that uses bpy.ops.render #109718

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John · 2023-07-04T22:53:17+02:00

John commented

2023-07-04 22:53:17 +02:00

First-time contributor

System Information
Operating system: Windows 10
Graphics card: NVIDIA GeForce GTX 1080

Blender Version
Broken: 3.5.0
Broken: 3.4.0
Worked: 3.3 LTS

Caused by 21acfbe348

I have an operator in a script which automates the process of rendering sprites by rendering an image on a frame of animation in blender multiple times, once for each desired camera angle. In some (but not all) projects, after this script is run and performs its task successfully, from that point onward, if at any point you execute a regular render operation via F12, Blender will crash when the first image finishes compositing. As of yet I've been unable to identify a marker for a project which does, and one which does not have this crash.

A few extra notes:

This crash is specific to the Cycles renderer. Eevee renderer does not produce the crash.
Repeating the operation does not produce the crash.
Using Rendered view mode in the 3D viewport does not produce the crash.

Exact steps for others to reproduce the error

Open the attached .blend file
Run the attached script
Navigate to the Output properties window and run the GRP Tools > Output GRPs operation
After the operation is completed, render the scene using F12
You should expect a crash

109718_ASAN.txt

**System Information** Operating system: Windows 10 Graphics card: NVIDIA GeForce GTX 1080 **Blender Version** Broken: 3.5.0 Broken: 3.4.0 Worked: 3.3 LTS Caused by 21acfbe348a433cb6ef5c422b1da232355fa51ab I have an operator in a script which automates the process of rendering sprites by rendering an image on a frame of animation in blender multiple times, once for each desired camera angle. In some (but not all) projects, after this script is run and performs its task successfully, from that point onward, if at any point you execute a regular render operation via F12, Blender will crash when the first image finishes compositing. As of yet I've been unable to identify a marker for a project which does, and one which does not have this crash. A few extra notes: - This crash is specific to the Cycles renderer. Eevee renderer does not produce the crash. - Repeating the operation does not produce the crash. - Using Rendered view mode in the 3D viewport does not produce the crash. **Exact steps for others to reproduce the error** - Open the attached .blend file - Run the attached script - Navigate to the Output properties window and run the GRP Tools > Output GRPs operation - After the operation is completed, render the scene using F12 - You should expect a crash [109718_ASAN.txt](/attachments/980706a4-586a-48bf-8817-3f4962df89f5)

cyclescrashreport.blend

21 MiB

grptools.py

11 KiB

John added the

labels 2023-07-04 22:53:18 +02:00

John changed title from ~~Cycles render crash using F12 render after running script using bpy.ops.render~~ to Cycles render crash using F12 render after running script that uses bpy.ops.render

2023-07-04 23:15:38 +02:00

Richard Antalik commented

2023-07-05 04:17:42 +02:00

I've got error when running script.

Python: Traceback (most recent call last):
  File "C:\Users\John\Desktop\work\bugs\109718.blend\Text", line 379, in <module>
  File "C:\Users\John\Desktop\work\bugs\109718.blend\Text", line 363, in register
TypeError: validating class: AddonPreferences.bl_idname doesn't support None from string types

Can you provide .crash.txt file? Can you perhaps simplify the script to be a simple procedure?

I've got error when running script. ``` Python: Traceback (most recent call last): File "C:\Users\John\Desktop\work\bugs\109718.blend\Text", line 379, in <module> File "C:\Users\John\Desktop\work\bugs\109718.blend\Text", line 363, in register TypeError: validating class: AddonPreferences.bl_idname doesn't support None from string types ``` Can you provide .crash.txt file? Can you perhaps simplify the script to be a simple procedure?

Richard Antalik added

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Needs Triage

labels 2023-07-05 04:17:53 +02:00

John commented

2023-07-05 08:49:09 +02:00

First-time contributor

Sorry, I don't know exactly what would cause that error for you where it did not for me. Merely removing everything under the class definition PREFERENCE_PT_grpt should resolve it though, which is fine since it isn't pertinent to the test. Hopefully this is sufficient.

grptools.py

11 KiB

John commented

2023-07-05 08:59:56 +02:00

First-time contributor

Here is a relevant crash log

cyprian.crash.txt

76 KiB

Richard Antalik commented

2023-07-06 02:34:09 +02:00

Sorry, I don't know exactly what would cause that error for you where it did not for me. Merely removing everything under the class definition PREFERENCE_PT_grpt should resolve it though, which is fine since it isn't pertinent to the test. Hopefully this is sufficient.

Could be, that I am running Blender 4.0. That said, I wasn't able to reproduce this issue with 3.5 or 4.0. Tried CPU or GPU rendering.
From crash file I can imagine this may be due to outdated GPU driver, but other than that I have no idea. So please update GPU driver if possible and recheck.

> Sorry, I don't know exactly what would cause that error for you where it did not for me. Merely removing everything under the class definition PREFERENCE_PT_grpt should resolve it though, which is fine since it isn't pertinent to the test. Hopefully this is sufficient. Could be, that I am running Blender 4.0. That said, I wasn't able to reproduce this issue with 3.5 or 4.0. Tried CPU or GPU rendering. From crash file I can imagine this may be due to outdated GPU driver, but other than that I have no idea. So please update GPU driver if possible and recheck.

John commented

2023-07-06 02:41:08 +02:00

First-time contributor

I feel like I updated my drivers relatively recently, but I'll go ahead and get the absolute latest and report back.

John commented

2023-07-06 04:28:43 +02:00

First-time contributor

Got the latest drivers, and I still have the same problem. I tried the CPU based render as well (with OSL off and on), and experienced the same problem I've described, so that ought to rule out GPU drivers as the primary cause.

Richard Antalik added

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labels 2023-07-11 00:22:19 +02:00

Philipp Oeser commented

2023-07-11 12:45:37 +02:00

Can confirm (even in 4.0), will check

Philipp Oeser added