VBGamer

Help!, I've reached the performance bottle neck I've been trying to avoid, you see I'm writing a outdoor 3d engine and I want to do huge landscape but the problem is keeping the detail up without dropping the framerate to one redraw a week. I've been reading alot of whitepapers and the two most viable solutions would seem to be either some form of frustrum culling and/or some kind of quad tree/ roam type system. I think I understand the (very) basics of how these work but have had no luck with actually putting them into practice, has anyone got anyone got a working code examples (preferibly in vb) or even just some advice about how to get started?. . .