It’s an app! Play with the sliders to change the effects. Warning: on older machines it can get slow. Reduce the width or height to make it go faster. Click on the save gif button to start recording, then again to stop and save. Enjoy!
My friend Max showed me Quasicrystals for the first time recently. If you’re interested the theory behind them, in the this guy explains it really well. There have been a lot of different versions online, so it can be a bit of a challenge to make something different. I’m using time delay to make it, so the faster the movement, the more colourful. I’ve got a couple of my favourites on my tumblr site, but I’d love to see what you can do too!