Command-line startup options

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You can launch the SFM directly from Steam, as you would any other game. If you like, when you launch the SFM, you can use certain command-line switches, such as for loading a specific session or for loading a file that specifies certain movie settings or render settings. To do this, in Steam, right-click Source Filmmaker, click Properties, click the SET LAUNCH OPTIONS button, and use one or more of the following command-line switches:

-sfm_loadsession filePath\sessionFile

-sfm_moviesettings filePath\movieSettingsFile

-sfm_rendersettings filePath\renderSettingsFile


  • filePath is the complete path of the file
  • sessionFile is the complete name of the session file, including the extension
  • movieSettingsFile is the complete name of the movie settings file, including the extension
  • renderSettingsFile is the complete name of the render settings file, including the extension


-sfm_loadsession C:\Steam\steamapps\common\SourceFilmmaker\game\usermod\elements\sessions\Session2.dmx

You can also use these switches in a command prompt or in a desktop shortcut.

Raising shadow map resolution

-sfm_shadowmapres XXXX

The default is 2048, possible values are powers of two: 1024, 2048, 4096, 8192.

See also