Cheers for that, check out that shader I linked above what you think. Apart from that I'm not to fond of billboarding, I personally would like to stay away from it for this project, apart from my particle effects :D

Well this shader gives some results but something is still wrong. You can only ever see it on the weirdest angles. I'm taking a guess it may be how i'm getting the vecViewPos:

float4 vecViewPos;
vecViewPos = xView[3];

float3 Viewer = wpos.xyz - vecViewPos.xyz;
Output.View=Viewer;

I added the AtmoPS and AtmoVS to my shader so it looks like this now:
http://pastebin.com/wZQ0PYe0

On a weird angle from the outside. Can only be seen on this angle really:


Inside the planet:


[Edited by - Scottehy on October 22, 2010 5:21:50 AM]

I've seen some of this stuff by Eric, it's beautiful isn't it. The other link you gave me looks perfect. Pretty much exactly what I wanted. Thanks :)

I dont get it, how does it get the blurry light around the outside of the planet?!?!?