Shader Toy for the Very Large LED Array (VLLA).
Some friends made the VLLA and then later I connected it to a Raspberry Pi and wrote various pieces of software (like this project, and 1, 2, 3, 4, 5, 6) to create effects on it. It used a library called libvlla that I made to pump the pixels out over two serial ports to Teensy boards which then shifted the data out to the custom LED boards.
I worked on it in 2014 while I was in school.