A cluster of colourful boids that follow your fingers
This demo is intended to run in a mobile device, like a mobile phone or a tablet. Should work on Firefox, Chrome and Safari. If there are no touch events, just use your mouse and click to disturb the boids.
There's an option to use the Fullscreen API. It's a bit screwy on some mobile browsers.
You can add a number in the URL hash to change the number of boids (e.g. #100 or #250).