I am currently working on a mesh made up of many puzzle pieces. My end goal is to place a picture on the puzzle mesh. To do this, I have combined all puzzle pieces into a single mesh, with the intention being to then unwrap it based on a top-down perspective.
I have tried a cube unwrap and smart UV project, but, neither one produces a mesh that allows me to easily place a picture on the puzzle by setting that picture to to be the texture.
I realize that the sides and bottom of the puzzle mesh may be problematic to unwrap, but, I don't care what is on those because they will not be visible in the final render. As such, any sort of errored out texture is fine provided I can render the rest of the mesh without, ie. crashing.
I am using Blender 2.77.