Thanks for the mention of the fractalyze blog, Rexxar ! I am actually the owner of the blog, and I just would like to inform anybody interested in the subject to have a look at the XRVG Ruby library (I am the author), you may find it interesting. I actually went through a lot of different languages (from C++ to Clojure), and I am stuck now with Python and Javascript (You can have a look at the result at http://julienleonard.com if you wish). Thanks again, for the mention and the interesting thread !