Blender 2.8 crashes upon creating material in OpenGL mode #56239

New Issue

Petra Mogyorósi · 2018-08-05T12:10:54+02:00

Petra Mogyorósi commented

2018-08-05 12:10:54 +02:00

System Information
Pisi Linux 2.0 (x86_64) with AMD Radeon HD 833 with xorg-video-radeon driver
Error is also reproducible on Windows 10 Pro x86_64/AMD Radeon RX580 4GB with Radeon Software 18.8.1

Blender Version
Broken: 2.8 Alpha

Short description of error
Blender 2.8 crashes in OpenGL model whenever a new material slot is added and a new material is created in the slot.
Exact steps for others to reproduce the error
Load a .blend (the default cube will do it, too)
Set rendering to OpenGL
Unlink a material from an object
Add new material to the same object

blendrun.txt
test.blend
system-info.txt
test.crash.txt

EDIT:~~It looks like my system installed Nouveau by default. Will run experiment again with official drivers.~~
Pisi Linux seems to pre-install Nouveau by default, regardless of GPU type.

**System Information** Pisi Linux 2.0 (x86_64) with AMD Radeon HD 833 with xorg-video-radeon driver Error is also reproducible on Windows 10 Pro x86_64/AMD Radeon RX580 4GB with Radeon Software 18.8.1 **Blender Version** Broken: 2.8 Alpha **Short description of error** Blender 2.8 crashes in OpenGL model whenever a new material slot is added and a new material is created in the slot. **Exact steps for others to reproduce the error** Load a .blend (the default cube will do it, too) Set rendering to OpenGL Unlink a material from an object Add new material to the same object [blendrun.txt](https://archive.blender.org/developer/F4168455/blendrun.txt) [test.blend](https://archive.blender.org/developer/F4168458/test.blend) [system-info.txt](https://archive.blender.org/developer/F4168465/system-info.txt) [test.crash.txt](https://archive.blender.org/developer/F4168474/test.crash.txt) EDIT:~~It looks like my system installed Nouveau by default. Will run experiment again with official drivers.~~ Pisi Linux seems to pre-install Nouveau by default, regardless of GPU type.

Petra Mogyorósi commented

2018-08-05 12:10:54 +02:00

Added subscriber: @MiceAreVeryNice

Bastien Montagne commented

2018-08-05 16:35:56 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2018-08-05 16:35:56 +02:00

Cannot confirm any crash here, Please:

Give us your exact Blender, OS and GPU (including drivers) versions, as requested in the template!
Ensure both your OS and drivers are fully up-to-date (and use official GPU drivers, not those provided by windows or tablet/laptop maker or open source ones in linux distributions).
Try the latest build from our buildbot.
Try to start Blender in factory settings (--factory-startup commandline option) (this will ensure whether this is a userpref or addon issue or not).
Try to tweak OGL settings in UserPreferences, System tab.
Try to tweak your GPU driver settings (e.g. try different values between 'performance' and 'quality' if you have such slider, etc.).
Attach as text file here the report generated by Help -> System Info (do not paste it directly in comment).
Launch Blender from the command line with --debug-gpu option and attach as text file here any error printed out in the console (do not paste it directly in comment).
Try to start in software OpenGL mode (use the blender-softwaregl distributed with official blender, will be slow, but will show whether this is a driver issue or not).

Cannot confirm any crash here, Please: * Give us your exact Blender, OS and GPU (including drivers) versions, as requested in the template! * Ensure both your OS and drivers are fully up-to-date (and use official GPU drivers, not those provided by windows or tablet/laptop maker or open source ones in linux distributions). * Try the latest build from [our buildbot](https://builder.blender.org/download). * Try to start Blender in factory settings (`--factory-startup` commandline option) (this will ensure whether this is a userpref or addon issue or not). * Try to tweak OGL settings in UserPreferences, System tab. * Try to tweak your GPU driver settings (e.g. try different values between 'performance' and 'quality' if you have such slider, etc.). * **Attach as text file** here the report generated by Help -> System Info (**do not** paste it directly in comment). * Launch Blender from the command line with `--debug-gpu` option and **attach as text file** here any error printed out in the console (**do not** paste it directly in comment). * Try to start in software OpenGL mode (use the `blender-softwaregl` distributed with official blender, will be slow, but will show whether this is a driver issue or not).

s12a commented

2018-08-07 05:42:22 +02:00

Added subscriber: @s12a

s12a commented

2018-08-07 05:42:22 +02:00

I could reproduce on Blender 2.80 (sub 21), Commit date: 2018-08-06 19:55, Hash faf43ff9ad with:

Windows 10 Pro x64 (1803)
AMD Radeon RX580 4GB with Radeon Software 18.8.1

I have provided .blend file already setup to OpenGL render engine and output from a debug build.

unlink.blend
console-output.txt
unlink.crash.txt

Click X (unlink), then click the large "New" button. The program ends with a runtime error afterwards, or crashes.

I could reproduce on Blender 2.80 (sub 21), Commit date: 2018-08-06 19:55, Hash faf43ff9ad8 with: - Windows 10 Pro x64 (1803) - AMD Radeon RX580 4GB with Radeon Software 18.8.1 I have provided .blend file already setup to OpenGL render engine and output from a debug build. [unlink.blend](https://archive.blender.org/developer/F4142811/unlink.blend) [console-output.txt](https://archive.blender.org/developer/F4142810/console-output.txt) [unlink.crash.txt](https://archive.blender.org/developer/F4142809/unlink.crash.txt) Click X (unlink), then click the large "New" button. The program ends with a runtime error afterwards, or crashes. ![image.png](https://archive.blender.org/developer/F4142814/image.png) ![image.png](https://archive.blender.org/developer/F4142819/image.png)

Petra Mogyorósi commented

2018-08-08 22:10:41 +02:00

This error can be reproduced by adding and creating any new material in OpenGL mode. I retested this with today's build (hash 6fbd210b91, x64)
system-info.txt
test.crash.txt
test.blend
blendrun.txt

This error can be reproduced by adding and creating any new material in OpenGL mode. I retested this with today's build (hash 6fbd210b915, x64) [system-info.txt](https://archive.blender.org/developer/F4161577/system-info.txt) [test.crash.txt](https://archive.blender.org/developer/F4161661/test.crash.txt) [test.blend](https://archive.blender.org/developer/F4161666/test.blend) [blendrun.txt](https://archive.blender.org/developer/F4161670/blendrun.txt)

Petra Mogyorósi changed title from ~~Blender 2.8 crashes upon changing material~~ to Blender 2.8 crashes upon creating material in OpenGL mode

2018-08-08 22:55:59 +02:00

Jhonny knaak de Vargas commented

2018-08-09 01:41:03 +02:00

Added subscriber: @JKVargas

Jhonny knaak de Vargas commented

2018-08-09 01:41:03 +02:00

Hey guys, I am new to blender development.
But I found out that when in opengl rendering mode, while inside the external_engine.c's RE_engine_render(...) the render->result is not being set because the render->scemode has R_BUTS_PREVIEW;

Now if someone can explain to me what scemode does and what's its purpose, or some englighment would be nice.

)

Hey guys, I am new to blender development. But I found out that when in opengl rendering mode, while inside the external_engine.c's RE_engine_render(...) the render->result is not being set because the render->scemode has R_BUTS_PREVIEW; Now if someone can explain to me what scemode does and what's its purpose, or some englighment would be nice. # )

Petra Mogyorósi commented

2018-08-09 11:16:57 +02:00

In #56239#525484, @JKVargas wrote:
Hey guys, I am new to blender development.
But I found out that when in opengl rendering mode, while inside the external_engine.c's RE_engine_render(...) the render->result is not being set because the render->scemode has R_BUTS_PREVIEW;

Now if someone can explain to me what scemode does and what's its purpose, or some englighment would be nice.
=)

Is OpenGL mode an external renderer? I doubt it. The issue stands, no matter whether Rendered mode is on or not.
Please file a different bug report instead of offing in this thread.

> In #56239#525484, @JKVargas wrote: > Hey guys, I am new to blender development. > But I found out that when in opengl rendering mode, while inside the external_engine.c's RE_engine_render(...) the render->result is not being set because the render->scemode has R_BUTS_PREVIEW; > > Now if someone can explain to me what scemode does and what's its purpose, or some englighment would be nice. > =) Is OpenGL mode an external renderer? I doubt it. The issue stands, no matter whether Rendered mode is on or not. Please file a different bug report instead of offing in this thread.

Brecht Van Lommel self-assigned this 2018-08-09 11:34:58 +02:00

blender-admin commented

2018-08-09 12:04:00 +02:00

This issue was referenced by 0de50a98e3

This issue was referenced by 0de50a98e384012628ea38dfceebd99f64bcea47

Brecht Van Lommel commented

2018-08-09 12:06:02 +02:00

@JKVargas is right about the cause of this bug, external_engine.c is a bit of a confusing name now that all renderers go through this system.

The OpenGL render engine does not currently support preview renders, so there is no render result. The solution is to avoid doing the preview render if the engine does not support it.

@JKVargas is right about the cause of this bug, external_engine.c is a bit of a confusing name now that all renderers go through this system. The OpenGL render engine does not currently support preview renders, so there is no render result. The solution is to avoid doing the preview render if the engine does not support it.

Brecht Van Lommel commented

2018-08-09 12:06:24 +02:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue

2018-08-09 12:06:24 +02:00

Jhonny knaak de Vargas commented

2018-08-10 03:12:07 +02:00

I am sorry if I did something wrong hehe.
Like I say, I am new to this stuff... But I really want to help.
I found out that stuff because I was debugging.

I am going to check what was the solution.
But still, if you guys don't mind, can you explain me what render->scemode does? =)
Thanks and good job Brecht =)

I am sorry if I did something wrong hehe. Like I say, I am new to this stuff... But I really want to help. I found out that stuff because I was debugging. I am going to check what was the solution. But still, if you guys don't mind, can you explain me what render->scemode does? =) Thanks and good job Brecht =)

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Blender 2.8 crashes upon creating material in OpenGL mode #56239

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