Another math-based animation built with Fnk, this time simulating snowflakes with circles and using it as a full-screen visualization near the end (not fully shown because the video capture area was restricted to part of the screen). Also shown is the comment feature which allows text annotations to be added to the patch.

Download the source for a higher-quality video.

Screenshots: flickr.com/photos/zehfernando/sets/72157607450972330/
More information: ffnnkk.org/about/