JT Nimoy is a procedural artist who let loose a bit of a bomb blast over the weekend: he revealed much of his process and sketches from six months of work for Tron Legacy. I wanted to link to this yesterday, but frankly, it was impossibly to even connect to his server with all the traffic it was getting from other sources.
His work for the film is fascinating. It utilizes Openframeworks, (which I covered last year from SxSW Interactive) but he goes much deeper with other technologies and other artists around him. The page is laden with beautiful film stills and isolated imagery of effects used in the film.