A reiteration of what is on GitHub.
Nonlinear Dynamics and Chaos in Processing (Link)
A Processing suite of codes to interactively visualize dynamical systems, chaos, fractals etc. Developed to supplement the lectures for the course IDC601 - Nonlinear Dynamics and Chaos. Can be useful if you are studying the topic on your own.
Flockworks (Link)
An interactive Processing visualization of finite-sized, disk-like particles with steric-repulsion flocking. Used for demos of active matter models, and also to make physics-driven artworks.