Here is an art piece by Tom De Smedt written in NodeBox (Python) :
http://www.nodebox.net/code/index.php/Tendrils
It is in turn based on work done in Processing by a group ART+CODE.
Ported to Abstracting:
http://github.com/dharmatech/abstracting/blob/master/examples/tendrils/source.scm
Although Abstracting is OpenGL based, I made a NodeBox compatibility
library which allowed for a straightforward port.
Here is a rendering performed by Abstracting/Ypsilon :
http://proteus.freeshell.org/tendrils-ypsilon-2009-04-07.png
Ed
An abstraction a day
Keeps the patterns away