Preloader Slider animation

Hi,

how can I create a pageloader like this one:

https://www.ubisoft.com/en-gb/game/rainbow-six/siege/game-info/operators?
(Just click on a “character”)

Maybe there is a plugin with which I can achieve this effect?

Saw this a few days ago and wanted the exact same a while ago for my own website but never found anything related to creating one like that.

The page I need help with: [log in to see the link]