Procedural, audioreactive particle flow setup with surface constrained and noise driven movement.

Video here.

The blend contains all necessary parts to have fun, use or reuse the setup. Nodes, materials, and scene. It contains detailed explanations and a quick "How to use ?" guide.

The input doesn't have to be audio, it can be whatever value you choose. The concept is the point.

Enjoy !

Quicktutorial here.

NOTE - The product utilizes the Animation Nodes addon and its extensions. It is recommended to have a basic understanding of how the AN works. (If you need pure Geometry Nodes version, see "Surface Flow" and "Surface Flow Swirl"). If you dont have AN installed, the Animation Nodes tab wont appear ! So install the addon, enable it, then open the Animation Nodes tab to see the node tree (called "An Node setup") ! You need AN plus Extra nodes. The link inside has the two combined in one addon. If you have other AN installed, delete it first ! (It is worth it, for the added functionality :) )