[QGIS-Developer] Info about a 3D view's renderer, version, extensions via PyQt/PyQGIS?

[Johannes Kröger (WhereGroup)]

Hi list,

I am trying to get info on a client's machine 3D capabilities, where the 
3D views are showing nothing, via Python in QGIS. I'd like to find their 
GL_RENDERER, GL_VERSION etc.

Basically debugging https://github.com/qgis/QGIS/issues/40324 but 
without the possibility to use third-party tools on the system.

It looks like QGIS uses a shared OpenGL context: 
https://github.com/qgis/QGIS/blob/e8b8108f3f013d96014bbde50e6935bf1dc4414a/src/app/main.cpp#L961

Checking it out on my system yields:

 >>> 
QCoreApplication.testAttribute(Qt.ApplicationAttribute.AA_ShareOpenGLContexts)
True

but there are no extensions for example:

 >>> QOpenGLContext.globalShareContext().extensions()
set()

While that set is empty, if I enable the "GL info" debug overlay in a 3D 
view, it does show a list of many supported extensions.

Maybe I am using it wrong?
Does the 3D view actually use a different OpenGL context?
Is there a way to access info about that context from PyQGIS?

Cheers, Hannes

Johannes Kröger

GIS-Consulting/-Entwicklung


WhereGroup Logo


WhereGroup GmbH
Lange Reihe 29
20099 Hamburg
Germany

+49 228 90 90 38 36

johannes.kroeger at wheregroup.com
www.wheregroup.com

Geschäftsführer:
Olaf Knopp, Peter Stamm
Amtsgericht Bonn, HRB 9885
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20260210/091d0bc9/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: KsMMzXXyFaFbXYxP.png
Type: image/png
Size: 5856 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20260210/091d0bc9/attachment.png>