Small graphics and physics experiments built with OpenGL.
- http://chrishecker.com/Rigid_Body_Dynamics#Physics_Articles
- https://gafferongames.com/post/integration_basics/
- http://allenchou.net/game-physics-series/
- https://github.com/RandyGaul/qu3e
- https://gafferongames.com/post/fix_your_timestep/