On Sun, Mar 9, 2008 at 2:16 PM, Ian <[EMAIL PROTECTED]> wrote:
>
> Does anyone have a working code example for a working wxPython app
> with a wx.GLCanvas window that has opengl calls made for rendering by
> pyglet?
I haven't used wxPython, so the following is just theoretical...
>
> I basically just want to use pyglet as a drop in replacement for
> PyOpenGL (obviously with the requisite argument type and function name
> changes) to implement the wx.EVT_PAINT event of wx.GLCanvas.
>
> I found an example from last year on the group, but it fails on
> windows (with invalid operation) errors. I've hacked together an
> example myself, but it claims there's no context when using ARB
> extensions (though it seems to work with regular gl calls when I
> disable debug mode). And I've tried several permutations of pyglet and
> wx.Python's contexts.
Ok, on Windows pyglet goes through WGL to get the extension function
pointers (this is the only way to get > 1.1 OpenGL functionality); and
needs a (pyglet) context of certain capabilities. Some hacks that
come to mind:
* Let pyglet create its context first (create dummy window if using
pyglet 1.0), then create and switch to the wxPython context.
* I can't think why that wouldn't work, but if it doesn't, start
hacking pyglet/gl/lib_wgl.py to bypass pyglet's context checks.
If a simple hack is all that's needed I'll consider adding it as a
pyglet.option ("assume a context is always available") in pyglet 1.1
or later.
Alex.
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