Greetings! I've been a POV user since 1994, although I've been on a three
hiatus. I can't get POV 3.5 to use photon maps. I've got the photon{} block
in global settings, and the proper photon{} blocks in the light_source, as
well as target keywords, etc as appropriate in the objects. I'm getting no
warnings or errors, it's simply skipping the photon step.
