It’s the same editing and animating toolset that Valve used to create all those Team Fortress 2 ‘Meet the…’ clips. The Source Filmmaker kit is entirely free to anyone who wants it.
It’s the ”movie-making tool built and used by us here at Valve to make movies inside the Source game engine,” says Valve. The SFM includes all base game assets from TF2.
Check out the Steam website for more information.
