Shaders turned out to be super intuitive once I got the basics down. The tutorials on thebookofshaders.com were super clear. I went from nothing to making an interactive visual installation for our event (using touchdesigner for input processing) in about 5 days.
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This is just from playing around today, learning some more shader-fu: https://www.shadertoy.com/view/WtSSWz
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Oops, forgot the render