What's the use of League of Legends anti-aliasing?

Anti-aliasing can effectively eliminate the dislocation phenomenon at the junction of polygons (especially in the combination of smaller polygons) and reduce image distortion. Anti-aliasing technology is applied to almost any modern software or game.

The appearance of sawtooth is basically caused by low sampling rate. Now all the games we see use raster technology, and its operation is based on pixels. The sawtooth we see is the magnified pixel, and rasterization will inevitably bring sawtooth, which is nothing more than a question of how much. Anti-aliasing is a technology that can eliminate the jagged edge of objects in the picture output by the display.

When high-resolution signals are expressed at low resolution or 3D coordinate positioning cannot be accurately calculated, these jagged teeth are usually caused by aliasing. Anti-aliasing technology can effectively solve these problems.

Extended data:

Anti-aliasing is a vector rasterization technology. Theoretically continuous curves defined by mathematical formulas and parameters need to be represented by discrete pixels on the screen. For pixels close to the curve, the anti-aliasing algorithm simply determines which side of the curve it belongs to.

In this way, the boundary of the object defined by the curve will look jagged. In order to improve the visual effect, anti-aliasing technology no longer simply divides pixels into "here" and "there", but calculates richer excessive colors according to the positional relationship between pixels and curves, usually calculating opacity, and other channel values are determined by the material of the object.

References:

Baidu encyclopedia-anti-aliasing