Cutting a shape out of a plane at runtime

Hi all. I was wondering how I would go about cutting a shape out of a mesh plane at runtime?

What I’m wanting to accomplish is a blowtorch-like device that can cut free-form holes out of planes. Much like the one here in Wolfenstein: The New Order.

I’m just not exactly sure where to start. Any information, recommendations, or nudges in the right direction would be much appreciated. Thanks!

You need to get “Mesh Filter” component of the mesh that you want to cut, and then change its mesh variable.
Documentation
To cut a hole, first you need to construct its shape and insert it in proper place in your mesh.
You will probably need to use triangulation to reconstruct the mesh.
Just search for articles on the internet.
I’d suggest you to start with just a simple quad shape.