New graphics toy: Varychase

Varychase is a graphics toy I just published. Runs in the browser; wave your mouse around and it makes curly patterns.

I originally wrote the option-less version May 29, 2010; yesterday I finally got around to adding a bunch of stuff, polishing the presentation, and publishing it.

It uses <canvas> for the optional line-drawing (I should compare the performance to using SVG instead, as well as also putting the dots in the canvas), and a few miscellaneous HTML5/CSS3 features for optional refinements. I've tested in Safari, Chrome, and Firefox on Mac.