The patch is available at github.com/evgenykochet...

It also works in #plugdata (but requires a tiny tweak that is described in the README)

Thanks! The audio is generated with Pure Data, then grabbed with Godot's AudioEffectCapture and sent to a shader that moves the vertices and "forms" the blade, so the overall amount of wizardry is pretty small. And yes, a rhythm game is exactly what I'm planning to use it for!

Yep, the video got absolutely destroyed. Maybe a youtube link will work better? youtu.be/2vQkGvqNLgQ