I made the above in a collaborative project with Jonathan McCabe. If you check his Flickr stream you can probably tell that he’s an awesome coder with ideas-aplenty.
The project was to build a generative system to model something from nature. We chose the human iris, and in particular the radial fibres that in some people split and clump to form these circular openings.
In case you’ve never noticed these fibrous openings before, see the image on the right. It comes from a book on the Rayid model of iris interpretation (not the same thing as iridology).