Access Violation Exception upon import the geometry via python #65921

New Issue

Mian Ajwad Imran · 2019-06-19T10:47:12+02:00

Mian Ajwad Imran commented

2019-06-19 10:47:12 +02:00

System Information
Operating system: Windows 10 Home v1803 Build 17134.706
Graphics card: NVIDIA GeForce GTX 1050 Ti

Blender Version
Broken: 2.80, e73647bf5b, 2019-06-18
Worked: 2.80, d525c76003, blender 2.7 (branch), 2019-05-26

Whenever I try to import a mesh (fbx/obj) using bpy.ops.import_scene.fbx(filepath=meshPath) I get the access violation exception and the blender crashes afterward.

It is happening with an add-on that is communicating with one of our apps.

**System Information** Operating system: Windows 10 Home v1803 Build 17134.706 Graphics card: NVIDIA GeForce GTX 1050 Ti **Blender Version** Broken: 2.80, e73647bf5b44, 2019-06-18 Worked: 2.80, d525c76003b3, blender 2.7 (branch), 2019-05-26 Whenever I try to import a mesh (fbx/obj) using bpy.ops.import_scene.fbx(filepath=meshPath) I get the access violation exception and the blender crashes afterward. It is happening with an add-on that is communicating with one of our apps.

Mian Ajwad Imran commented

2019-06-19 10:47:12 +02:00

Added subscriber: @ajwad_quixel

blender-admin commented

2019-06-19 10:47:12 +02:00

#66098 was marked as duplicate of this issue

Brecht Van Lommel commented

2019-06-19 13:25:06 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2019-06-19 13:25:06 +02:00

I can't reproduce this.

Please attach an example .fbx file that causes the crash. And make sure the bug can be reproduced by running bpy.ops.import_scene.fbx() in the console in Blender, outside the add-on.

I can't reproduce this. Please attach an example .fbx file that causes the crash. And make sure the bug can be reproduced by running `bpy.ops.import_scene.fbx()` in the console in Blender, outside the add-on.

Mian Ajwad Imran commented

2019-06-19 13:46:35 +02:00

Running the command from the console in Blender successfully imports the file.
And if I comment out the line of code in my add-on then the blender doesn't crash. Am I missing something here? Were there any changes made to the Addons API?

Running the command from the console in Blender successfully imports the file. And if I comment out the line of code in my add-on then the blender doesn't crash. Am I missing something here? Were there any changes made to the Addons API?

Brecht Van Lommel commented

2019-06-19 14:00:44 +02:00

There were many bugfixes, those might have caused a problem here but it's hard to say which one.

Regardless, we need a way to reproduce this on our side to be able to investigate bug reports.

There were many bugfixes, those might have caused a problem here but it's hard to say which one. Regardless, we need a way to reproduce this on our side to be able to investigate bug reports.

Mian Ajwad Imran commented

2019-06-19 14:22:38 +02:00

Reproducing the problem would require you to sign up for a Quixel trial account here: https://quixel.com/signup
then download the Quixel Bridge from: https://quixel.com/bridge
then down any free 3d asset in Bridge
and lastly export it to blender by following this tutorial: https://www.youtube.com/watch?v=u6RqgbiZ3ts&

It is a bit tedious process but I would really appreciate it if you go through with it! :)

Reproducing the problem would require you to sign up for a Quixel trial account here: https://quixel.com/signup then download the Quixel Bridge from: https://quixel.com/bridge then down any free 3d asset in Bridge and lastly export it to blender by following this tutorial: https://www.youtube.com/watch?v=u6RqgbiZ3ts& It is a bit tedious process but I would really appreciate it if you go through with it! :)

Brecht Van Lommel commented

2019-06-19 14:42:48 +02:00

We will not sign up for an account like that, you can try to extract a test case from your add-on code. We don't time have the time to debug full add-ons to figure out if it's an issue on our side or in the add-on.

Mian Ajwad Imran commented

2019-06-19 15:17:15 +02:00

Can I share the entire log after running the addon operation.
(I have to use blender.exe -debug-all to print out all the log information right?)

Can I share the entire log after running the addon operation. (I have to use blender.exe -debug-all to print out all the log information right?)

Brecht Van Lommel commented

2019-06-21 11:53:11 +02:00

You can share the log, but it's not really what we need to investigate this bug. We need exact steps to redo the problem.

Brecht Van Lommel commented

2019-06-25 12:49:20 +02:00

Added subscriber: @jonbragado

Jon Be commented

2019-06-25 17:28:32 +02:00

Steps are there and those are the way to reproduce the error. What else can we do or give you that may help?

Brecht Van Lommel commented

2019-06-25 18:40:26 +02:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue

2019-06-25 18:40:26 +02:00

Brecht Van Lommel self-assigned this 2019-06-25 18:40:26 +02:00

Brecht Van Lommel commented

2019-06-25 18:40:26 +02:00

Normally we require a .blend file and Python script that we can just run to reproduce the issue, rather than debugging an add-on to figure out if it's a bug in Blender or the add-on.

Anyway, it appears this was fixed by: a4c907af77.

I can reproduce the crash before that, but not anymore after.

Normally we require a .blend file and Python script that we can just run to reproduce the issue, rather than debugging an add-on to figure out if it's a bug in Blender or the add-on. Anyway, it appears this was fixed by: a4c907af77. I can reproduce the crash before that, but not anymore after.

Mian Ajwad Imran commented

2019-06-25 18:42:42 +02:00

Hi,
Yes, It has been fixed by the recent update. Thanks for all the help and your time! :)

Hi, Yes, It has been fixed by the recent update. Thanks for all the help and your time! :)

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Access Violation Exception upon import the geometry via python #65921