doppac_cc: Photo: [Quadtree collision regions](http://www.openprocessing.org/visuals/?visualID=10797)… http://tumblr.com/xife804tl
blog: http://collisions.doppac.cc/
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twitter: http://twitter.com/dotimpact
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July 26, 2010
doppac_cc: Photo: [Quadtree collision regions](http://www.openprocessing.org/visuals/?visualID=10797)... http://tumblr.com/xife804tl
