I was testing a setup for 3D screen /Billboard like this one
https://www.youtube.com/watch?v=vCmFEhPLf1k [www.youtube.com]

and I understand the Idea is to create the box with the content and render it with the camera perspective and project it to the flat box all of that is find now I have the projection using the UVTexture node is there a way to render or bake that to perfect rectangle?

Konstantin has some setups for that:

https://procegen.konstantinmagnus.de/camera-projection-to-a-curved-screen [procegen.konstantinmagnus.de]

Simply transfer the @P from the pre-bend original flat rectangle back into the bend one after projecting. That should give you a flat flat with the distorted UVs on it.

mestela
Konstantin has some setups for that:

https://procegen.konstantinmagnus.de/camera-projection-to-a-curved-screen [procegen.konstantinmagnus.de]

That was exactly what I'm looking for the cop deform node to the new uv values thanks so much for this amazing source