I've editing in a glow effect in Photoshop up until now, which works alright, but I'm not really satisfied with it. Selecting individual parts with the lasso tool is kind of a pain in the megablocks. I don't actually know anything about POVRay beyond what LDD to POV-Ray Converter lets me do, but I imagine maybe I could do something by mucking about with the "materials". That's a thing, right?