what is sfm

SFM stands for Source Filmmaker, which is a 3D computer graphics software tool published by Valve for creating animated films that uses the Source game engine. It was developed internally at Valve in 2005 and forked from the in-game demo playback tool found in Source. SFM has been used to create many community-based animated shorts for popular Source games, including Team Fortress 2, the Left 4 Dead series, and Half-Life 2. The tool was used extensively for certain promotional materials for the release of Team Fortress 2, particularly the Meet the Team featurettes. The Replay Editor also allowed users to upload completed videos to YouTube. SFM can be downloaded through Steam. It is important to note that SFM can also stand for Surface Feet per Minute, which is a unit of measurement for a concept in machining called "Surface Speed".