In VRML the files are text. However, there are also "packed" versions of
VRML files that are just gziped VRML text files. VRML viewers are designed
to detect "packed VRML" files and render them properly. It would seem that
this capability could be added to POV-Ray as well. Gzip is also supported
across all major platforms (Windows, Linux, etc).
This kind of approach might help provide the functionality you seek.
Jim
