There are two tar files:
      s97demos.pc.tar	for installation on pcs
      s97demos.sgi.tar	for installation on sgi machines

SGI instructions:

Extract the files.  The executables are o32, so they should
run on all of the machines.  

If you have a machine with a build environment for OpenGL and C, 
you can build the entire tree by doing 
"make clean; make install" from the top directory.

"make install" in the top directory copies all of the executables
into directories under /usr/demos/SIGGRAPH97.  This is done
to facilitate the cgi scripts.

The htmls and source code files are all browsed from within the
extracted tree.

There is an index.html that navigates through the demos in the
top directory.  The demos are launched using cgi scripts.
The cgi scripts are in the cgi-bin, and they should be installed
under the local web server's cgi-bin.  This implies that there
in fact is a local web server on the machine.
The web server for O2s and Octanes is ns_fasttrack.  It is used
for the out of box demos on these machines, so it's probably installed.
It may need to be enabled, though.

chkconfig ns_fasttrack on
<reboot>
/etc/init.d ns_fasttrack start

... or some similar incantation.



PC instructions:  

Just extract the files.  The executables are included.
There is an index.html at the top that navigates through
the demos.