Perlin Particle 02 code: Now, rather than generating three buffer images for the x, y, and speed Perlin values, it calculates them on the fly. This has the added advantage of being able to animate time, which you can see in the above movie. However, it's also exponentially slower. This movie took about a second a frame, or ten minutes on my 5 year old laptop.
Find source code on my Processing Wiki HERE.
My other Processing imagery\video on Flickr