You could also use an exponential height fog using voronoi noise texture. Asher has a nice guide on this with a few example maps. He also has a talk, where he explains some more stuff about exponential height fog and volumetric clouds.
You could also use an exponential height fog using voronoi noise texture. Asher has a nice guide on this with a few example maps. He also has a talk, where he explains some more stuff about exponential height fog and volumetric clouds.