Hey erikparr, I had been trying to modify the source code to use live video like you have but must be doing it wrong because in my code it starts out fine and then slowly starts to choke.
Would u be able to post ur source so I can have a look how you did that.
Hi Josh, well I actually started out by modifying Kyle McDonald´s particle system and particle classes so you can pass color information to the particles and update the color info each time. (see here: http://forum.openframeworks.cc/t/quadtree-particle-system/2860/0 )
It was just an experiment so my code is pretty sloppy… but if you dont mind I can post all the code later today.