Riva Tuner (AA settings)

[Stereophile]

I'm running a gf4 ti4200 with Riva Tuner. Under the anti aliasing tab underneath direct X I see settings like

2 X 2
2 X 1
Quincunix
2 X 4

The first number means anti aliasing ? And the second number is ansiotropic filtering ? What is quincunix ?

Antialiasing makes the jaggies go away. What does ansio filtering do ?

 

[Stereophile]

http://www.tweaktown.com/document.php?dType=guide&dId=601&dPage=3


thanks