HOW VIDEO GAMES USE LUTS AND HOW YOU CAN TOO

Summary from the TLDR Web Dev newsletter

LUTs are simple data tables that remap colors or values. They offer a powerful and efficient way to manipulate how images and videos are displayed. For example, in video games, they can be used to efficiently add color variations to objects in a scene. LUTs can also be used to optimize performance by precalculating expensive operations.