What does anti-aliasing actually do to your PC games?

Anti-aliasing is an important settings for PC games, but not all methods that achieve the goal of smoother edges work the same way.

Anti-aliasing is an important settings for PC games, but not all methods that achieve the goal of smoother edges work the same way.<p><img src="https://www.engadget.com/img/gallery/what-does-anti-aliasing-actually-do-to-your-pc-games/intro-1790012271.jpg" /></p>