I'm also really going to have to parse the visiblity information, the start map is 32486 vertices and 64122 indices, which is rather a lot to render in one go. Probably.
Anyway, not much more progress from the last entry, but at least this looks impressive [smile]
(Click to enlarge)
(Click to enlarge)
The FPS is from a debug build, but I doubt it makes that much of a difference.