mat_picmip
mat_picmip is a console variable available in all 
Source games.
Specifies only one level of mipmapping to be displayed.
Note:This is the same as the "Texture Detail" menu in the graphics settings, but with more options.States
Has a range of -10 to 4. Values higher than 2 require sv_cheats in most games. Values lower than -1 require sv_cheats in most games other than 
Team Fortress 2.
- mat_picmip -1
- Sets Very High mipmapping level.
- mat_picmip 0
- Sets High mipmapping level.
- mat_picmip 1
- Sets Medium mipmapping level.
- mat_picmip 2
- Sets Low mipmapping level.
