MENOZ Posted May 30, 2011 Share Posted May 30, 2011 Hi, I discovered City engine, this is the page of it's creators http://www.vision.ee.ethz.ch/~pmueller/wiki/Main/Front. I'm interested to the road generation, it uses a L-system approach.. I found this paper http://www.vision.ee.ethz.ch/~pmueller/documents/procedural_modeling_of_cities__siggraph2001.pdf I just read quickly now, at 3.3.1 it talks about Self-sensitive L-Systems. I don't think that this could be made in houdini right? The idea of L-system branches growing together and forming closed loops could not be found in existing applications Quote Link to comment Share on other sites More sharing options...
hopbin9 Posted May 30, 2011 Share Posted May 30, 2011 Thanks for the link. Very interesting stuff. The l-system in Houdini can't do what he's talking about, as far I know, cause there is no back reference in the language to make changes to future generations. It works basically by doing search/replaces on each generation from variables created by the previous generation. You'd have to go back and make changes when conditions are raised. Still, road generation is only one part of the procedural city pipeline. Creating the buildings is a lot harder in my mind. Doesn't matter how good your road paths are if the city is populated by crappy looking buildings. Quote Link to comment Share on other sites More sharing options...
edward Posted May 31, 2011 Share Posted May 31, 2011 Some Houdini related links for procedural city generation: http://ggg.udg.edu/skylineEngine/ http://nccastaff.bou...Sc09/Ilangovan/ http://www.cmivfx.co...ocedural+Cities Quote Link to comment Share on other sites More sharing options...
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