Download Multi Projector Warp System FREE Unity. 

This asset allows you to do multiple projector panorama blends with standard projectors. This plugin supports up to 8 projectors and horizontal and vertical panorama orientations. From the centralized component, you can set the resolution, X/Y Divisions of each display and manually adjust the control points and blend regions to get a seamless panorama projection image. Experimental: Mouse clicking raycast onto warped surface detection Latest Documentation: https://docs.google.com/document/d/1slQ6CiH0NkkO8xIbc81xAmmyzbnSbz9fnlUemrBLRUo/