Hi,

I'm working on an opengl plotting/visualization module for SymPy
(http://code.google.com/p/sympy/), a Pythonic CAS library. After a lot
of frustration with PyOpenGL and various UI front-ends, I discovered
Pyglet and have felt like a better person ever since ;-)

Through third-party bug reports and my own testing, I've found that
when using Linux on under-accelerated graphics hardware (various
laptops and VM environments), the refresh rate slows to about 3-5
seconds/frame. After profiling, I found the bottleneck to be in the
xlib implementation of window.flip() (the problem doesn't occur in
windows at all, haven't tried OS X).

It turns out there is something wrong with VSync in this situation, as
turning it off with window.set_vsync(False) radically improves the
framerate. So, my problem is basically fixed for now, but I thought it
might be something worth looking into or documenting.

Anyway, Pyglet is awesome!

Thanks,
Brian Jorgensen

SymPy Plot Development Blog: http://straightupcoding.blogspot.com/


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