Blender does not sufficiently check OpenGL implementation’s capabilities #41324

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Martijn Berger · 2014-08-05T09:06:28+02:00

Martijn Berger commented

2014-08-05 09:06:28 +02:00

Blender can run on the GDI windows OpenGL without any vendor driver (OpenGL 1.1) but it crashes in various cases.

I think we should find a way to check and warn users that their configuration is lacking rather then crashing. Also it would be good to have a central place where we actually check and thereby specify what parts of OpenGL we actually need.

Blender can run on the GDI windows OpenGL without any vendor driver (OpenGL 1.1) but it crashes in various cases. I think we should find a way to check and warn users that their configuration is lacking rather then crashing. Also it would be good to have a central place where we actually check and thereby specify what parts of OpenGL we actually need.

Martijn Berger commented

2014-08-05 09:06:28 +02:00

Changed status to: 'Open'

Martijn Berger commented

2014-08-05 09:06:28 +02:00

Added subscribers: @MartijnBerger, @JasonWilkins, @Psy-Fi, @ideasman42

Jason Wilkins commented

2014-08-05 09:13:33 +02:00

See https://developer.blender.org/D699

Jason Wilkins commented

2014-08-05 09:16:40 +02:00

One thing that I mean to do in the above patch is do further checking to make sure that extensions and versions are always checked, but it already creates a central place to handle this.

Jason Wilkins commented

2014-08-05 09:29:27 +02:00

I don't mean to spam, but the glreport.py script that used to be in the tools directory will be useful here since it will tell you the version of every gl function that is used in blender.

Martijn Berger commented

2014-08-05 10:18:28 +02:00

@JasonWilkins thx for feedback.

Besides technical ( the actual detecting ) we should also figure out the communication with the user (UI) side of things.

@JasonWilkins thx for feedback. Besides technical ( the actual detecting ) we should also figure out the communication with the user (UI) side of things.

Antonis Ryakiotakis commented

2014-08-05 10:29:29 +02:00

I checked a bit on that yesterday and it may be possible to just destroy the window with a loud pop-up (a simple message box should do) in such cases. (The crappy thing being that we need to initialize the GL context first to get the GL version)

Jason Wilkins commented

2014-08-05 10:32:20 +02:00

In https://developer.blender.org/D706 I have a GPU_print_error function that prints to the console, but maybe a hook could be setup to send errors to a place a user can see more easily.

I need to fix it so that it takes a format string, so I can route all gpu error through it (there are still a few fprintf left)

I could also add severity flags if we only want to send certain errors to the user and reserve others for debugging.

In https://developer.blender.org/D706 I have a GPU_print_error function that prints to the console, but maybe a hook could be setup to send errors to a place a user can see more easily. I need to fix it so that it takes a format string, so I can route all gpu error through it (there are still a few fprintf left) I could also add severity flags if we only want to send certain errors to the user and reserve others for debugging.

Bastien Montagne commented

2014-08-07 15:35:50 +02:00

Added subscriber: @mont29

Mike Erwin commented

2014-09-20 22:29:57 +02:00

Added subscriber: @MikeErwin

Aaron Carlisle commented

2016-10-18 17:23:08 +02:00

Added subscriber: @Blendify

Aaron Carlisle commented

2016-10-18 17:23:08 +02:00

@MikeErwin can this be closed?

Mike Erwin commented

2016-10-18 17:55:02 +02:00

Changed status from 'Open' to: 'Resolved'

Mike Erwin closed this issue

2016-10-18 17:55:02 +02:00

Mike Erwin self-assigned this 2016-10-18 17:55:02 +02:00

Mike Erwin commented

2016-10-18 17:55:02 +02:00

Yes, as of Blender 2.77 we are very clear about what GL version is supported. Extension checks seem to be complete. Blender closes with a message if the host system can't run it.

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Blender does not sufficiently check OpenGL implementation’s capabilities #41324