On Sat, Mar 7, 2009 at 8:11 AM, Richard Thomas <[email protected]> wrote:
>
> I've got it down to a much smaller test case, there's no effects or
> anything anymore, it just crashes within 10-15 seconds. There is a
> curious line though, commented out, that if uncommented will cause it
> not to crash. I will let the script speak for itself.
>
> http://www.chard.ath.cx/~richard/files/opengl_crash.py
>

The problem is probably due to the vertex data being freed by Python
while it's still being streamed to the CPU.  I can't reproduce the
problem on my macbook, but here are some things to try:

 - There is a glFlush() call near the end of
pyglet/graphics/__init__.py:draw().  Replace it with a call to
glFinish() or add a small time.sleep().

 - Replace your draw() call with a Batch draw (these keep vertex data
around indefinitely).

Alex.

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