When you look at nature and start to see patterns, the best way to imitate it, is to usually use noise textures. The clouds we will be creating today cover huge areas in the sky and it would be a waste to use our computing resources on simulating them.
Our main DCC software will be Houdini, for lighting and rendering we will use Arnold renderer and for compositing we will be using Davinci Fusion. For compositing we will need HDRIs and couple stock footages where necessary.
Why Arnold? Can’t I use gpu renderer for faster rendering?
Also here you can download 10 preset vdb cloud volumes that you guys can use with your scenes shared by Travis Davids. They can be used with any render engine that supports VDB, for example Octane Render and Arnold.