What is the name of such an animation, and how to do it outside of the constructors?

Question

css

Here's how here, on hover, when the cubes move from moving the mouse. Not just when hovering over the parent block up and down, in exactly and to the sides, depending on how the mouse moves.
awemwork.tilda.ws
I understand that the site is made on the constructor, but I don't use them. I want to learn how to do this outside of constructors.
Directly from start to finish by hand, or on sites where you can pick up gradients, not so important.
The main thing for me is to first understand how it all works, and not stupidly copy-paste.
And I don't even know if this has a separate name or property, or just look for "animation when moving the mouse"?

Answer 1

Answer 2

Tried to do it with CSS.
transform3d()arranges squares in 3D space, and mouse movements change the point of view - perspective-origin: