Mat dxlevel

mat_dxlevel changes the DirectX mode used within a Source game. The player is only able to use modes that his/her hardware supports. The format is

 mat_dxlevel [DirectX version]
 mat_dxlevel 95
 mat_dxlevel 81
 mat_dxlevel 80
 mat_dxlevel 70
 ...

This can also be specified with Launch Options, use -dxlevel [DirectX version] on the launch options of any Source game to do so.

See Also

DirectX Versions