Where to find the URT
SunOS
Everything is located in /IUS/usrc31/ray/
bin/
Executables
man/
Manual pages. Put this in your login file:
alias rleman man -M /IUS/usrc31/ray/man
urt-3.0
Complete source tree
urt-3.0/img
Sample images

Mach
You must setpath -i99 /usr/misc/.rayshade to get executables and man pages in your paths. The source is in /afs/cs/misc/rayshade/build/src/urt-3.0, sample images in /usr/misc/.rayshade/doc/img