Pure clouds atmospheric environment.
This CGI footage was created as a part of Cartier Retail Shop interior design
Clouds were separated into two parts: single stand alone clouds close to the camera and filling all around cloud scape.
Light rig was also split into 3 lights to have controllable result at compositing stage.
All the cloud voxels have default speed of zero. Any of them getting velocity become visible. The higher speed the more density visible for the render.