# Last edited on 2007-01-13 00:20:06 by stolfi

A simple ray-tracer in C.

This code appears to come from this article:

  An Introduction to Ray Tracing
  Roman Kuchkuda
  University of North Carolina
  roman@cs.unc.edu

  This article was published in Theoretical Foundations of Computer
  Graphics and CAD, edited by R. A. Earnshaw, Springer-Verlag, 1988,
  1039-1060.

However, the source files are rather different from those given by
Roman in his article. Either he sent us [J.Stolfi and M.V.A.Andrade]
an updated version (sometime in 1993?), or we modified his code
substantially.

The code is presently split into two directories: "krs"
and "krt".  Sources in the latter have a "krt" prefix,
so they were probably modified by us.  

    J.Stolfi, UNICAMP, 2007-01-12