How to make the effect of staging (scene) when scrolling?

Question

css

How to implement the effect of staging (scene) on the site?
The same effect is implemented on this site: curvy.dk/beagle/site
Maybe someone knows the plugin

Answer 1

This has always been called parallax in the context of sites.
You can do a lot of things.
In this case, everything on the canvas is rendered using pixi.js