[PyOpenGL-Users] Strange Errors

[Ian M. <geo...@gm...>]

Hi,

I've been doing a lot of inside work on my rendering library, and I've made
a whole bunch of changes that I don't fancy redoing.  However, recent code
that uses it is crashing in strange ways.  The program will run perfectly
for a few seconds, and then suddenly, it will crash, on simple calls, like
glCallList, glDisable, glUniform1f.  In some cases, calling the same
function immediately afterward works fine, but the program crashes on
subsequent opengl operations.

There's no repeatability--sometimes a program will work just fine for as
long as I test; then running the same program again later will cause an
error almost immediately.

It's incredibly strange, and I don't know what to do.  I think I must have
added a bind to a buffer or something that's not being balanced later.  At
the moment, I need help figuring out what general situations would cause
such problems.  I've noticed the errors in fairly complicated code, like
certain GPU cloth situations and shadowmapping.  Any possible ideas as to
what might possibly be causing these errors?

Ian