what exactly is anti aliasing? I usually dont mess around with graphic settings in games, but recently I’ve gotten curious.
In: Technology
Firstly, aliasing in computer graphics refers to the jagged edges caused by the pixelated nature of monitors. [This](https://web.cs.wpi.edu/~matt/courses/cs563/talks/antialiasing/34_93.gif) causes noticeable artifacts when dealing with 3D objects which appear to be sharper where their real-life counterparts are smooth.
AA is a broad term which described a set of techniques which are used to counteract this effect, generally having a sort of blurring or smoothing effect on the colors of pixels to hide the transitions between them.
A common approach is multi-sampling (MSAA) which, to oversimply things involves rendering each pixel multiple times with slight offsets and then using and then averaging the results. The idea is that by sampling the area in 3D space the pixel covers at multiple locations, the better it will represent it.
Another common approach is FXAA which is basically a selective blur applied to areas that are near edges in geometry.
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