Demoscene: Function, WeCan, and Geeks can dance Demoparties

Beginning by Elude (Android demo, WeCan 2012)
Python Primer for the Impatient |
Lua Primer for the Impatient |
OpenGL interpolation qualifiers (GLSL) |
GLSL Hacker 0.5.0 |
OpenGL 4 Tessellation on Mac OS X |
GpuTest 0.4.0 for Windows Mac OS X and Linux |

Beginning by Elude (Android demo, WeCan 2012)