loopcut_init crashes in background in view3d_operator_needs_opengl #112083

New Issue

Muhammad Abubakar Irshad · 2023-09-07T15:00:25+02:00

2023-09-07 15:00:25 +02:00

System Information
Operating system: Microsoft Windows 11 Home

Graphics card: Intel(R) UHD Graphics OK

I am trying To run Python file in background but it is giving error, but without background it works fine and script works.I have shared file and simlar issue is already posted but it didn't work for me

**System Information** Operating system: Microsoft Windows 11 Home Graphics card: Intel(R) UHD Graphics OK I am trying To run Python file in background but it is giving error, but without background it works fine and script works.I have shared file and simlar issue is already posted but it didn't work for me

blender.crash.txt

17 KiB

Muhammad Abubakar Irshad added the

labels 2023-09-07 15:00:26 +02:00

Muhammad Abubakar Irshad changed title from ~~Blender 3.6.2 ExceptionCode : EXCEPTION_ACCESS_VIOLATION~~ to Blender 3.6.2 ExceptionCode : EXCEPTION_ACCESS_VIOLATION

2023-09-07 15:03:41 +02:00

YimingWu commented

2023-09-08 04:07:37 +02:00

Looks like you are trying to call loop cut operator and that operator requires the user interface to run correctly.

If no user interaction is needed, or the argument made it so that the loop cut operator does not read anything from the viewport, there is then a chance we could improve on the operator to eliminate the need for viewport on that execution path.

Could you share the script file you are trying to run this in background? That way we can get an better idea of what it's supposed to be doing. Thanks!

Looks like you are trying to call loop cut operator and that operator requires the user interface to run correctly. If no user interaction is needed, or the argument made it so that the loop cut operator does not read anything from the viewport, there is then a chance we could improve on the operator to eliminate the need for viewport on that execution path. Could you share the script file you are trying to run this in background? That way we can get an better idea of what it's supposed to be doing. Thanks!

YimingWu added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-09-08 04:08:03 +02:00

YimingWu changed title from ~~Blender 3.6.2 ExceptionCode : EXCEPTION_ACCESS_VIOLATION~~ to `loopcut_init` crashes in background in `view3d_operator_needs_opengl`

2023-09-08 04:08:55 +02:00

YimingWu commented

2023-09-08 05:54:58 +02:00

Looks like view3d_operator_needs_opengl(C) call isn't enclosed inside is_interactive in loopcut_init(). Moving it inside should mitigate the issue.

Looks like `view3d_operator_needs_opengl(C)` call isn't enclosed inside `is_interactive` in `loopcut_init()`. Moving it inside _should_ mitigate the issue.

Muhammad Abubakar Irshad commented

2023-09-08 06:01:20 +02:00

@ChengduLittleA Thank You for your kind consideration. Thats true that we are using loop cut operator in the script.I have attached script.This Script makes a simple tyre with treads. iT works fine on UI Script but not on background. It also saves the result to output path which i have hard coded to my directory.

blender1.py

18 KiB

Muhammad Abubakar Irshad commented

2023-09-08 06:38:27 +02:00

Looks like view3d_operator_needs_opengl(C) call isn't enclosed inside is_interactive in loopcut_init(). Moving it inside should mitigate the issue.

I'm Beginner in Blender scripting Can you Kindly give me some hint that how can I achieve this in above script.A lot of code is just what blender info panel produced of an action.

> Looks like `view3d_operator_needs_opengl(C)` call isn't enclosed inside `is_interactive` in `loopcut_init()`. Moving it inside _should_ mitigate the issue. I'm Beginner in Blender scripting Can you Kindly give me some hint that how can I achieve this in above script.A lot of code is just what blender info panel produced of an action.

YimingWu commented

2023-09-08 07:27:33 +02:00

@Muhammad-Abubakar-2 Hi, thanks for the script. This requires fixing in blender internally, you don't need to personally do anything.

YimingWu referenced a pull request that will close this issue

2023-09-08 08:04:21 +02:00

Fix #112083: Loop cut requires GL only in interactive mode #112121

YimingWu referenced this issue from a commit

2023-09-18 15:45:25 +02:00

Fix #112083: Loop cut requires GL only in interactive mode

YimingWu closed this issue

2023-09-18 15:45:26 +02:00

Blender Bot added