hello, i need to render some particles which move around in a swarm-like behaviour (like a fish swarm) so if the swarm moves in a specific direction, all the single particles basically also move in that direction but each at a slightly different speed and slightly different direction. which of course changes so that the swarm isn't split up and all the single particles remain together. are there any algorithms that describe an implementation of that behaviour? if so, i would be grateful if you could point me to some links or papers. thanks!

A - This is more of an AI related topic...

B - you want to look up flocking / boids

Boids (Flocks, Herds, and Schools: a Distributed Behavioral Model)
Boids pseudocode

thank you! that already helps a lot!