I've been playing around with the Siege Editor and enjoy the very straightforward way of editing terrain. I was wondering what you call this approach of a scenery engine. I was also wondering if the same approach is used for other games. For those who don't know the editor: you start the map with one root node, and attach nodes to it using both nodes' doors. The doors are simple face edges and they must fit to make the terrain work. Much like one of thos minature race tracks. If you create a circle (or patch) of nodes, the last and first are automaticly attached if they fit, which actually turns the tree into a graph. I'm asking because I want to figure out how to do this for my own game. Thanks!

mattnewport,

thanks for that link, it is an interesting read and exactly what I was looking for