guigr on 14 September 2008
AA (anti-aliasing) and AF (anisostropic filtering) are quality settings. The first decrease pixellisation and the second improve textures quality. Sorry for the basic english, i'm french.
A lot of people set these settings to the max and complain that games run slowly.
http://en.wikipedia.org/wiki/Anti-aliasing
http://en.wikipedia.org/wiki/Anisotropic_filtering
