Cymatics -modal phenomena- occur when particles dance due to the beauty of music, or because they simply want to, and collect in certain nodes.
The question came up in one of the forums and I tried to simulate it in Houdini by using a ripple dop network to drive the waves and extracting a velocity field that then advects particles.
I should reduce the y motion completely and fake it with small vibrations. It looks unnatural as it is now.
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