r_lodbias

The r_lodbias determines the geometric detail level.

Usage:
/seta r_lodbias 1
then do:
/vid_restart

Values: “0” = high, “1” = medium, “2” = low, “3” = custom
Default: “0”

Note:
Setting r_lodbias to low “2″ it helps (increases) your FPS (Frames per Second), so you will be able to see the movement smother. Also this low setting cuts out some small details from trees, so you can see through more easily.