Sybixsus: Yeah, I was wondering about using very low poly hidden meshes with MeshesIntersect, but I wasn't convinced it would provide that much of a speed boost. Then I took a look at my models and realised just how many polys are in them. Fighters now use boxes (from 250 ploys to 12: not bad, huh?) and I managed to shave quite a few off the buildings. It's running, dare I say it, silkily, for now. But then, I'm not done making the world solid, yet!
Thanks for the suggestions, folks, you've all been most helpful. I expect I'll be using them all at some point.
Thanks for the suggestions, folks, you've all been most helpful. I expect I'll be using them all at some point.