here’s how I achieve low-poly camera/texture projections in blender, this is useful because the standard approach of Project-From-View needs a lot of geometry to look right, which can bottleneck your scene if you plan to add other meshes

Corridor Image: https://unsplash.com/photos/xx6oIX-SQKc
Original Post: https://blender.stackexchange.com/questions/213542/how-to-do-projection-mapping-camera-mapping-without-distortion-but-without-ad
Nuke Footage From: https://www.youtube.com/watch?v=6ZDMpXKQlSM