Higher precision numbers. Instead of using an infinite plane, I want a sphere 6,378,000 m in diameter. I want to put up an actual moon 1,738,000 m in diameter 384,401,000 m distant. While we're at it shader trees, collision detection, and waves in water that respond to edges. A faster renderer is always a good thing. I use tg2 a lot, so bryce render times don't bother me that much. Oh yeah, I want a terrain editor with capabilities on the order of Daylon Leveller. I'm on a mac so...