Title:        A ray-tracing package
Version:      1
Submitted:    Mar 27 1989
Author:       Mark VandeWettering <markv@drizzle.cs.uoregon.edu>
Submittor:    Mark VandeWettering <markv@drizzle.cs.uoregon.edu>
Description:  A ray-tracing package

This represents the second formal release of the MTV Raytracer.  It was
written to help me understand how raytracing works, to generate cute
images, and generally because I like to program.  Feel free to use it for
any purpose, I am releasing it into the public domain.

The input format to this ray tracer is called "NFF" or Neutral File
Format, which was invented by Eric Haines' for his Standard Procedural
Database.  The SPD was designed to allow programmers to test their
raytracers on databases of varying sizes.  While not the end-all to object
file formats, it has served me well.  If you wish to change the input file
to something else, you probably only need to change the parser in
"parse.y", not any of the other code.