This video from Benedek93 is a little slow to get going, but it’s well worth watching all the way through for a really tight demonstration of what you can achieve with OpenGL ES on the Pi. Benedek says: Recently I’ve started going through a tutorial for modern OpenGL programming again (I can recommend it: http://arcsynthesis.org/gltut/ ), and on the way I decided to re-do that function plotter program I have showed off in one of my videos (“OpenGL Shaders and Shadow Maps”). First I wrote it using the old, fixed-pipeline OpenGL specification so that I could run it on my laptop which didn’t support the newer versions.
See original here:
3D parametric plotter