oke I put myself on a “test” project. Goal… low rendertime and no post preduction. I setup an emitting billboard at the back, with an omni infront of it. Gave the ship a darkblue (near black texture). The rock model I got from Michalis (SketchUcation form). He made it with baked textures. I just added some bump to it. Oke so here it is:
Well I set up an emitting billboard at the back (with and radial gradient ALPHA map) and infront of the sun position I added an yellow/orange omni light. I could have use it as HDRI but I don’t know how to position it as I want so I used this method.