This interesting question was sent in to my ARCHICAD Coaching Program recently by California architect Luis Barrios who asked how to create custom Surfaces in ARCHICAD using photos of stained glass windows from a church that he’s renovating. He wanted to include these artwork images in his 3D views as well as rendered elevation drawings.
The process was straightforward but involved multiple steps and programs, including Photoshop for cropping and straightening images. I've created a free downloadable cheat sheet that gives you a step by step guide to this process (available on the same page as the video).