Moving away from our normal printing area. We found that going from 3D printing to app creation is pretty similar. They both use the same 3D file and the rest is pretty simple, i would recommend any 3D printers take a look at AR. This one was created to promote the book launch and act as a key to allow the viewer to continue receiving additional content.
Using the files from AR and video games would obviously be a step up. Render it using the 3D graphics card and have it do the slicing. You can then make the tool paths with true color. Actually getting true color output for anything else than a powder based printer might be a challenge right now, but we should still go that route. I have a project for this that I am lazily occasionally trying to finish.
We actually did the opposite of that! I converted the printable files, and created the final ar project in unity!