Champion is a Swedish western short film set during Winter. As it does'nt always snow on cue my job was to add snow where the story neeeded it.
The challenge was to match the physics of the scene to create a realistic snowfall. This is a breakdown of the process in After Effects relying heavily on the '3D Camera tracker', 'Rotobrush' and Red Giant's 'Particular'.
Here's a tutorial for the snow effect: http://www.premiumbeat.com/blog/after-effects-snow/
The film is created by Måns Berthas and Daniel Burman.
More on my blog: http://3rdeye.se/realistic-snow-effects/