Going down a new path

I have decided to rewrite everything, now using quadtrees , well its actually based on oneal's sandbox example, i havent quite got the quadtree working 100% but i got some pretty neat effects, which i would like to show off. Here is a few  screenshots of my current progress.

Before terrain shading

 atmosphere from the ground

 a nice sunset

 atmosphere from space with terrain shading.

I havent quite got the hang of the split merge funtionality , but its working to an aceptable level for now.