Current GL Compatibility

In progress

First, if you haven't seen our dev days presentation on vogl then go here and skip to slide ~44:

http://media.steampowered.com/apps/steamdevdays/slides/movingtoopengl.pdf

Here's the bonus content I didn't have time to cover:

http://richg42.blogspot.com/2014/01/vogl-opengl-tracerdebugger-bonus-content.html

Summary:

• OpenGL v3.3, with a lot of extensions actually used by games, and some API's and most texture target types supported by v4.x
• Compatibility or core profiles, multiple contexts with sharelists, display lists, client side arrays arrays, glBegin/glEnd, ARB assembly shaders, fixed function pipeline