Look-up-tables, or LUTs, have been used in graphics programming to overcome technical challenges. This article explores the creative possibilities of using LUTs in WebGL, from transforming grayscale footage to color to creating unique visual effects. By manipulating the Fragment Shader, users can tint videos in real-time, changing colors and exploring different operations. The techniques shown apply to various graphics programming contexts, offering endless opportunities for experimentation. The article includes interactive examples and instructions for incorporating custom videos or webcams, making it a valuable resource for both artists and programmers in the field.
https://blog.frost.kiwi/WebGL-LUTS-made-simple/