How to create a mesh-shape that borders on the given 4 points of type Vector3?

Question

C++ / C#

I have 4 points of type Vector3.
I need to create a mesh-figure based on these 4 points, for which these 4 points will be its corners.
The height should be 20f.
How can I create such a Mesh object?

Answer 1

https://habr.com/en/post/428796/
I think this will help