Editing Anisotropy (section)

===Computer graphics===
In the field of [[computer graphics]], an anisotropic surface changes in appearance as it rotates about its [[normal (geometry)|geometric normal]], as is the case with [[velvet]].

[[Anisotropic filtering]] (AF) is a method of enhancing the image quality of textures on surfaces that are far away and viewed at a shallow angle. Older techniques, such as [[bilinear filtering|bilinear]] and [[trilinear filtering]], do not take into account the angle a surface is viewed from, which can result in [[aliasing]] or blurring of textures. By reducing detail in one direction more than another, these effects can be reduced easily.