PORTABLEGL

In a nutshell, PortableGL is an implementation of OpenGL 3.x core in clean C99 as a single header library (in the style of the stb libraries)... PortableGL started as a very simple wireframe software renderer based on a tutorial in summer 2011. I kept playing with it, adding minor features over the next year, until in early 2013 I decided I should turn it into a software implementation of OpenGL. This would save me a huge amount of time and energy on API design since I'd just be implementing an existing good API (though some disagree) and also make the project more useful both to me and potentially others. Also, at the time Mesa3D was still years away from full 3.x support, not that I'm really competing, and the fact that there was no finished implementation was a little motivating. I made a lot of progress that year and had a few bursts here and there since, but once I got it mostly working, I was less motivated and when I did work on it I spent my time on creating new demos/examples..

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