couple of things that might be worth trying:
#1 flip the sphere's normals so that they point inwards
#2 map the sky texture to incandescence channel instead of color channel. The sky will then self illuminate.
#3 try with directional light instead of volume light.
#4 turn off the sphere's shadow casting and receiving.
Last edited by kbrown; 11-09-2003 at 12:01 PM.