Rendering on plane

Hello everyone,

I've looked around the internet for an answer to my problem but I keep running into errors with no solution in site.

My goal here is to render camera views to a texture on a plane. I have the cameras set up, they are rendering to a Render Texture. But I cannot find a way to take that Render Texture and render part of it onto my plane.

I've seen a few people reference doing post-process shading to do it but all of their example scripts cause errors and are not fixable in anyway feasible.

If there is anyone out there who could give me a hand, point me to a post or give me some suggestion as to another way to do this in Unity, that would be great and much appreciated!