erich@eye.com ( Eric Haines) (12/20/90)
Archive-name: graphics/raytrace/spd/1990-12-18
Archive: weedeater.math.yale.edu:/incoming/SPD.3.0.shar.Z [130.132.23.17]
Original-posting-by: erich@eye.com ( Eric Haines)
Original-subject: SPD version 3.0 now available, with teapot
Reposted-by: emv@ox.com (Edward Vielmetti)
Version 3.0 of the Standard Procedural Databases generation package is
now available. This package is a set of seven C programs, each of which
generate a scene description (i.e. view, lights, object colors and locations,
etc) for testing the efficiency of your ray tracer.
The databases provided are:
balls - fractal ball object (a.k.a. sphereflake)
gears - 3D array of interlocking gears
mount - fractal mountain and 4 glass ball
rings - pyramid of dodecahedral rings
teapot - the famous teapot on a checkerboard
tetra - recursive tetrahedra
tree - tree
What's new: The famous "teapot" database has been added to the set. It can
be generated with or without the bottom, at various mesh resolutions. // All
the database generators allow an optional command line argument, which must be
a positive number. This number is the Size Factor, which determines how many
objects the database generated contains. So, "balls 1", for example, will
output just 10 spheres on a square, while "balls" will generate the default
7381 spheres. // All code has been regrooved to be a tad faster and more
consistent (though looking back on it, I don't think I would have bothered...).
// mountain.c is renamed to mount.c to make some micro users happy. // README
is much changed, with clarifications and new statistics. The NFF description
has had some clarifications made.
You can get the code by two methods. One is via anonymous FTP:
weedeater.math.yale.edu [130.132.23.17]
cs.uoregon.edu [128.223.4.13]
Currently the code is in SPD.3.0.shar.Z, and is located in /incoming - it'll
probably move to some more permanent spot soon.
For those without FTP access, write to the netlib automatic mailer:
research!netlib and netlib@ornl.gov are the sites. Send a one line message
"send index" for more information, or "send haines from graphics" for the
latest version of the SPD package. You should probably wait a few days before
trying this out - I've sent the updated package, but haven't had confirmation
on it being installed yet.
The package is about 108K unpacked (i.e. via email), about 48K compressed.
Enjoy,
Eric Haines, erich@eye.com