Full Portfolio: http://joshwedlake.com/proj_SPI.php
All the WIP blogposts along the way are at http://linetestjournals.blogspot.com/
My notes on the algorithms: http://www.scribd.com/doc/47412229/Crowd-Simulation-and-Auto-Walking-Algorithms
Even at HD the compression has really destroyed some of the shots here - I've enabled the video download.
A crash test dummy for my work in progress collection of scripts for auto-walking and flock simulation in blender. The crowd simulation system used for these was programmed from the ground up in python (not using blender's built in boids), as was the auto-walker (though I took a glance at the old 2.4x insect walker but decided to go down a different route for more flexibility with different numbers of legs etc.)
I also coded the 'scribbler' and the motion trails in python (thanks to this unofficial port of Python Image Library to Python3 http://www.lfd.uci.edu/~gohlke/pythonlibs/#pil which enabled me to use PIL inside blender to read pixels). Inspiration for the scribbler's algorithm comes in parts from mr doob's harmony http://mrdoob.com/projects/harmony/ and zefrank's original scribbler http://www.zefrank.com/scribbler/about.html .
The sound is a combination of my own python code (sampling differentiated fcurve data in blender) and audiopaint http://www.nicolasfournel.com/audiopaint.htm .