[QUOTE=JBaldwin;330015]
Just updating this thread (which I initially forgot to do).
I have recently released a Gas Planet Kit for UE4. Within this free package, there is a much better implementation of this atmosphere system (and is still cheap in terms of performance).
You may download it here:
[/QUOTE]
Awesome, I will study the shaders to improve my own. I really appreciate your hard work and you sharing it to everyone.