Down-angle

Top-down view in a 1000-tree region.  Those tree canopies are really a problem for any sort of top-down view.

More experimenting with renderer speedups today.  But I feel like I’m grasping at tiny speed improvements now.  I’ve probably taken it all as far as it’s going to go, and I’d be better off working on optimising what I’m rendering, rather than how I’m rendering it.