Here is a test I did this afternoon with material and global nodes. I only half know what I did exactly but I think it turned out pretty well.
The HD shot took about five minutes to render but I didn’t optimize much.
The smoothness of the texture is due to vector blur, it was originally going to be an animation but I think a still is better.
Tell me what you think, I’ve attached/linked a couple screenshots, the blend, and maybe a video.
dragon-egg.blend (225 KB)