The inner surface of an space ring structure, like Larry Niven's
Ringworld or Bungie's HALO?
Can't really tell for sure...if there is any solid ring, it is hidden by
the media, but that looks like the curve of a ring rising up above.
--
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/