Later in this lecture we talk about reducing jaggies through super sampling. Another anti-aliasing approach is to render an image with jaggies, identify the edges in post-processing, and smooth the edge pixel on a per-pixel basis. This technique is called Fast Approximate Anti-Aliasing (FXAA), and is done through shaders with very little performance hit. You can read more here: https://en.wikipedia.org/wiki/Fast_approximate_anti-aliasing. Similar techniques are used frequently in games.
Later in this lecture we talk about reducing jaggies through super sampling. Another anti-aliasing approach is to render an image with jaggies, identify the edges in post-processing, and smooth the edge pixel on a per-pixel basis. This technique is called Fast Approximate Anti-Aliasing (FXAA), and is done through shaders with very little performance hit. You can read more here: https://en.wikipedia.org/wiki/Fast_approximate_anti-aliasing. Similar techniques are used frequently in games.