import OpenGLOpenGL.USE_ACCELERATE = Falsefrom OpenGL.GL import *
Could you also test 2.7 + PyOpenGL 3.1.0b1 so we can see whether we have a problem with PyOpenGL 3.1 + Optimus or just with PyOpenGL 3.1 + Optimus + Python 3.x. Testing PyOpenGL 3.1.0b1 without the Accelerate module on Python 2.7 would also help to narrow down failure cases.On 14-03-03 05:09 PM, Ákos Tóth wrote:
I recently started using pyOpenGL with Python 3.3 on Ubuntu 13.10. I am in the unfortunate situation of owning a laptop with a switchable (Optimus technology) dedicated video card. With the most recent version of pyOpenGL (3.1.0b1) installed, the program crashes quite seriously when running the line "from OpenGL.GL import *" - to the point where Ubuntu actually opens an error dialog for this. This problem is specific to Python 3 with optirun - in C++, OpenGL works on the optimus card without any hiccups, and version 3.0.2 with Python 2.7 also works without a problem.
Tests concluded so far:
- Python 2.7, pyOpenGL and accelerate version 3.0.2 with or without optirun. No problems.
- Python 3.3, pyOpenGL and accelerate version 3.1.0b1 without optirun - no problems but the intel card only supports openGL contexts up to version 3.1, which is far behind what I require.
- Python 3.3, pyOpenGL and accelerate version 3.1.0b1 with optirun, crash on import. In the pastebin link below is the output of python3 -vvvvvc "from OpenGL.GL import *".
If you could do a trace of the import to see what line fails, that would help. To do that, create a file with just the import statement, then run:
python -m trace --trace -f yourfile.py
it should print out each line as it executes and the last line printed should be the one that causes the crash.
The most likely cause of a crash is that we have something doing GL calls before there's a GL context.
Mike C. Fletcher
Designer, VR Plumber, Coder