(yes, i haven't done anything with this idea in the past year. *sigh*)
sorry, no source code yet. as i just assimilated this cool tutorial:
and i don't (yet) really know how to modify that to my needs, so the code is horrible.
look mom, i can draw a slider and make my computer do the calculations
oh yeah, SVG UI is getting more popular.
here's some cool projects that i have found (or found me) since then: