Thanks @bonemap for pointing that out, and thanks to the wonderful @gunther for making such a helpful tool <3
I've seen it on the plugin page and I've been meaning to try it out myself for some time now. Maybe today is finally the day :)
Thanks so much. I'm on mac, so i switched your code over to use Syphon, and got it working (though with a strange image flip that I don't yet understand the cause of)
I'm looking to load work with use multiple images within a scene, rather than just one, but this sketch gives me some ideas of how to get started, using Processing.