There's sample code in PyOpenGL and OpenGLContext for saving canvases to
PNG or JPEG formats using PIL. Saving to Postscript requires
considerably more work (if you're implying saving as triangles, lines
and the like). There is a GPL library which lets you do this, and I
have an old SWIG wrapper for it sitting around somewhere (I think,
haven't touched it in years), but even then, it's fairly poor quality
compared to capturing a bitmap image.
Anyway, the function for reading a buffer is glReadPixels:
http://pyopengl.sourceforge.net/documentation/manual/glReadPixels.3G.xml
see the end of that man page for pointers to Python sample code.
Good luck,
Mike
Zunbeltz Izaola wrote:
Hi,
I've a drawing made in an OpenGL canvas. I want to save it to a file
(preferibly PostScript format). Somebody knows how to do it?
TIA
Zunbeltz
________________________________________________
Mike C. Fletcher
Designer, VR Plumber, Coder
http://www.vrplumber.com
http://blog.vrplumber.com
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