I just realized something about rendering 3d objects in blitz 3d. The big problem with rendering large 3d scenes (from what I hear) is that every polygon renders at once as long as the object they belong to is partially seen. I just realized that, using stuff from the explosion demo in the blitz 3d samples (for textures), you could convert a loaded 3d model to a bunch of meshes. These would only be rendered if they are seen by the camera.
It's just another idea, but it could be less bothersome than portals and the other methods of doing this.
It's just another idea, but it could be less bothersome than portals and the other methods of doing this.