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Graphics and video
For a list of games, see games with anti-aliasing (AA) support.
Anti-Aliasing (AA) is a computer graphics technique that attempts to minimise the unwanted 'staircase' or jagged object outlines which occur due to the limited resolution in 3D-Renderers, essentially by 'smoothing' these lines.
There are a number of Anti-Aliasing techniques today but all of them are based on the same principle. They simply render multiple pixels per pixel of the final image.
The techniques only differ on two factors:
Those algorithms are also variable on how many pixels they use to determine one final pixel. In video games this is represented by a simple number which is a power of 2 like 2x, 4x, 8x etc.
There are several terms associated with Anti-Aliasing, most of which are derivatives on the standard Anti-Aliasing formula.