I've been trying to understand how it works, it looks like a lot of the math deals more with rotation and scaling. It appears there is a function for every object variation, and it looks like each one sets its own color, so I think you could change the colors of individual objects to see what they actually render. The object placement is too perfect, I'm betting the individual objects have a number of predefined places where other object would naturally be in relation, and then the the presence or variation of the object is randomized - and all the more impressive if something that simple yields such great results. I could just watch this scroll by for hours - nice alternative to watching fish tank videos while coding.