I remember a post (which i can't find again) where the person had used the Ring Clouds technique that njen posted to make a volcano image which had a very nice atmo. It might have been njen himself. The info i was looking for in the post was about how they had made the inside of the volcano glow, as if it was full of lava.
Can anyone point me to the post or give some advice on how to do this?
I've been trying to use light sources and luminous surfaces but i can't get this technique to work.
