Feedback system allows you to use output from the previous frame to the current one. You can use it on surface to create recursive animation, trail effect, or use it with number to create intermediate variable, smooth lerp, and more.
Patrick Gillespie: What Happens if You Blur and Sharpen an Image 1000 Times? https://www.youtube.com/watch?v=7oCtDGOSgG8
Documentation (WIP) : https://docs.pixel-composer.com
Chapters:
00:00 Intro
00:13 Simple example
01:32 Diffuse node
02:01 Trail effect
04:07 Reaction Diffusion
05:27 Counter
05:40 Smooth lerp
Check out Pixel Composer on itch: https://makham.itch.io/pixel-composer
Steam page: https://store.steampowered.com/app/2299510/Pixel_Composer
Pixel Composer Discord: https://discord.gg/aHGbYjQh63
