Here's code to use df3 files to make full-color 3d "image maps" I've
included three df3 files (red.df3, blu.df3, and grn.df3) and the source
used to generate them (pattern.pov) as well as the code that uses them.
It's nothing special, but it should communicate the idea.
Unzipped, each df3 file is a little under a megabyte. They are 100x100x100.
