I have a scene from max 2014 where I’m using the above environment effect. It works sometimes and not others. All I did was change the HDRI in the dome light and the effect stopped working. I tried adjusting the parameters and nothing happens. This happened for the other HDRI but suddenly it started working so I’m not sure what is going on.
Do you have VRaySun in the scene ? The Aerial Perspective needs a VRaySun to work.
That works thanks. It seems I can turn the sun off and it will still work.
Yes, it needs only the position of the sun for the calculations.