I’ve found this amazing solution for camera mapping node in shader itself (better than UV modifier solution - no distortions on lowpoly objects). It works but I went into trouble which I can not resolve.
I can not match camera FOV and projection node FOV. I need to match it precisely, not by hand. That means I need the projection image match precisely my camera view. Don’t you know how to do that.
Example of issue (video) and here node tree (source): Surface Shader live Camera Projection