In 3D graphics Anisotropic Filtering, abbreviated as AF, is a technique used to improve image quality in computer video games. AF enhances the textures on surfaces that are far away and at high angles (sloped relative to the camera view) so that the projection of the texture appears more like a rectangle or trapezoid than a square. When AF is applied to the sloped texture, the surface does not appear fuzzy to the viewer. Anisotropic Filtering is a feature found on most 3D video cards today, however card manufacturers do not necessarily use the same process to render AF.
