Extremely interactive, extremely creative and extremely informative. Great stuff.

https://blog.maximeheckel.com/posts/shades-of-halftone/

Shades of Halftone - The Blog of Maxime Heckel

An interactive deep dive into building halftone shaders in GLSL, covering everything from classic dot patterns and CMYK color separation to Moiré interference, gooey effects, and animated displacement.

The Blog of Maxime Heckel