Great tip Arjo! Until now, I finetuned the fog and skydome size but this offers much more control. On my first attempt nothing happened because the skydome was outside the fog object, so beware of that.
Thanks! Mark H PS volumetric fog without volume shadows is fast, I prefer that to post effect fog because reflections etc are correct. To get this done, add the following line in the properties shader of your sky material, stuck on the sphere representing the skydome: Distance=Constant(0) This will make the camera think that the skydome is close to the camera so it will not get washed out by the fog.
