Glossary talk:Anisotropic filtering (AF)

• The Evil Within
• AFAIR RAGE when you go above 4x (though I could swear it wasn't just shimmering)
• Alan Wake
• Crysis with parallax occlusion mapping
• Freelancer?

As I understand it, this can occur for any game that samples color from textures as part of a shader or something. I've forgotten the details, but basically forcing a higher texture filtering ends up affecting shaders in unexpected ways which can produce a visual glitch here or there as a result.

http://www.vogons.org/viewtopic.php?f=46&t=44035

EDIT: also, somebody should mention gedosato

Does this only matter for older cards? Will knowing how this stuff work help with anything?

I can't really word my stuff today at all, I'm not sure if I'm clear.

For the most part - some of the GPUs covered in the comparison are actually supported by some of the more modern games on this wiki (mostly the Raedon HD cards). Also, knowing how this stuff works is mostly useful for distinguishing whether an issue with "bad textures on card X" is because of a legitimate problem or just how card X handles AF (Anisotropic Filtering).