Broadcasting tool | Snap render material to personal camera

Greetings!
I’m looking for a way to re-create a broadcasting tool i saw in a world called Chikuwakart. Basically, it has a render material on a plane and a sphere around it. If you place your personal camera inside said sphere the image projected to the plane will stich perfectly to your camera feed.

I’ve seen this system on other servers aswell but i can’t remember them all. I’ve also attempted to track down the creator of the map with this system on it without any results so far.

Basically, i have a render material i really want to broadcast or record. So if you know a way to tap into that video feed i would be super thankful!