Reality Factory

Awsome, thank you all for the explanations! Much appreciated =]

ahh cool thank you very much =] so i can theoretically make the shell of my game using the standard rfedit level maker and fill it with 3D models of things such as walls and realistic ground terrain? Like say i want to make a cave with rock formations, i could essentially make a standard rectangular...

I am new to game design and programming and the such but i do know how to do some 3D modeling. Well anyways, what i was wondering is if it was possible to make models of environments such as grass or hills and have them placed over the BSP for a more realistic environment? I don't really know how to...