This modifier attempts to emulate the flocking effect seen in bird flocks and fish shoals. It uses the rules for “boids” developed by Craig Reynolds. If you want to know more, search for “boids” on Google and you will find many references.
When using this modifier, it is strongly recommended that the emitter emits only a single pulse of particles or emits them over a short period – say 10-30 frames. If you use a continuous stream of particles, the existing particles will be influenced by the new ones being