Hi all !
I have similar problems with my light rays... when I increase haze density to achieve those rays the render becomes very grainy.
Quality settings just seem to have little effect on it.
I used following settings for my last render:
512x384 res, Detail 0.8(!), 4 AA, GI 4-4 , Atmosphere Quality - 50 Samples(which is quite a high value)
(see attached image)
I'am now trying same settings with 64 Samples for the atmospheric quality (as considered by buzzzz in this thread) and hope this will eliminate the grainyness... if so, I just wonder why 14 samples more make such a big difference... but we'll see
rendering is in progress^^
Michael