I left my midi keyboard in another state (why!?) but i didn't want that to stop me from making some weird noises. As well as working on some generative patterns. This particular process video was a very long session so i condensed it down to less than a minute to capture the main patterns that i was getting into. What i like about this video is you can see the evolution of the visuals pretty clearly and get a sense for how they are built.
VCVRack is an open source software modular synthesis program. One of my favorite creative opensource programs I first found VCVRACK through 
Resolume is a paid program, but if you are interested they have a demo you can play with. It is one of the more popular live visuals software, although honestly there are more powerful programs out there. Resolume has a nice balance of usability for speed, it's limitations are in it's flexibility.
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