Hello I’m interested in doing this effect in unreal but I don’t know how to mask off the sides of the opening so that you only can see through the window.
Is it possible to do that with custom stencils and if so how?
Any guides/tutorials would be appreciated!
I found a solution that might solve my problem through answerhub. I’m gonna link it here if anyone else wants to use it for something like this. 
Where is that link my guy?