Thanks very much guys.
Ulco, yes I would very much like there to be options for all sorts of atmospheric distortions and phenomena. Mirages, sun dogs, ice halos, coronas and so much more would be amazing to be rendered internally - but I would imagine it would be a pretty huge amount of work for some very edge case situations. Can always hope though.
I've got a great book that describes in detail the science of all sorts of atmospheric oddities that I would highly recommend anyone pick up if you can find a used copy. It is called Out of the Blue: A 24 Hour Skywatcher's Guide by John Naylor. Purchased new it is stupidly expensive, but there are lots of used copies around.