Too Long; Didn't Read
Hydra was created by Olivia Jack who wanted to build a visualization engine that took its inspiration from analog televisions. In Hydra, you typically start with a basic visual preset or texture, like noise, voronoi, or oscillation. With Hydra you can connect to other machines and each output your own video stream that can then be modified by others. The hardest thing about starting out with Hydra is wrapping your head around some of the paradigms, which are pretty different from your typical application.