Smoke generates with smoke solver and driven by particles.
Details : blog.stevebeaucamp.com/2013/02/28/houdini-fx-tornade/
Softwares: Houdini 12, After Effects CS5
Rendering engine: Mantra
Music: Vanguard – ECHO
soundcloud.com/levanguardfunk/e-c-h-o
Roles: Compositing, FX, Lighting, Rendering
Thanks to Causeret Maxime