On Sat, 5 Nov 2011 17:57:04 -0700, Michael Broxton wrote: > I wanted to send another quick request for help in case any PyQt devs or > users can help me with the QGLWidget multi-threaded rendering bug I posted > about below... I've done a little more testing this week and found that > this issue occurs on Linux as well, so the problem does appear to be truly > cross-platform (confirmed on Mac/Win/Linux).
The code you posted earlier crashed for me using both the Python threading module and QThread. The OpenGL context also caused the GUI to block, so perhaps that's a clue you can follow. > Once again, I have a C++ > implementation of the test program in pure Qt that does not crash when > rendering multiple QGLWidgets from multiple threads, so I don't think that > my approach is fundamentally flawed. However, the PyQt test program > (https://gist.github.com/1318290) does crash shortly after multiple render > threads are up and running. Any clues as to why this is happening in PyQt > but not pure Qt would be greatly appreciated. I wonder if there's a race condition somewhere that lets you get away with it in C++ but not in Python. In any case, I'd be concerned that there's some interaction with the main thread that you're not aware of. David _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
