Planet atmosphere tricks?

Yeah. I’ve been working on a planet, and I was wondering if anyone has ideas for doing the glow of the atmosphere? At the moment I’m using a 200-vert circle with a Halo material around the planet and tracked to the camera to make the glow, but it’s on the shadowed side of the planet so it doesn’t work very well…

I was thinking maybe a volumetric atmosphere using a whole bunch of spheres with ramps and fresnell transparency, but I don’t want to bother duplicating and scaling 20 spheres and giving them all different Alpha values… :rolleyes:

you can get good results with a few spheres 3 or 4 should work ok.