Hmmm... This super render wasnt as good as I hoped it would be. But maybe it has to do with something other than the settings I have been working on.

The pic below is compressed to jpeg, but the original has a bad/less good transition betweent the shifting hues of the light.

FG rays = 4000
MinRad= 0.01
MaxRad=0.1

DirectionalLight Intensity = 3

MinSample = 1
MaxSample = 2