[LDCad] Model is too large for 3D rendering software

[Roland Melkert]

If you want to view the entire thing at once in a system like that, you'd have to put in some kind of LOD system that replaces the full resolution elements with low polygon analogues. It's what game engines do, so it's not a new problem and there's bound to be a ton of documentation on how to do such a thing.

LDCad currently only applies frustum culling to things behind the camera (so Z tests only).

And it disables rendering of edges for stuff at a certain distance.

The 2.0 engine was supposed to improve on this.