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From: erich@eye.com (	Eric Haines)
Newsgroups: comp.archives
Subject: [comp.archives] SPD version 3.0 installed on weedeater in /pub, etc
Keywords: ray tracing, databases, teapot
Message-ID: <1990Dec29.224943.13379@ox.com>
Date: 29 Dec 90 22:49:43 GMT
Sender: emv@ox.com (Edward Vielmetti)
Reply-To: erich@eye.com (Eric Haines)
Followup-To: comp.archives
Organization: 3D/Eye Inc., Ithaca, NY
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Archive-name: graphics/raytrace/spd/1990-12-20
Archive: weedeater.math.yale.edu:/pub/SPD.3.0.shar.Z [130.132.23.17]
Original-posting-by: erich@eye.com (	Eric Haines)
Original-subject: SPD version 3.0 installed on weedeater in /pub, etc
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] in /pub/SPD.3.0.shar.Z
	cs.uoregon.edu [128.223.4.13] in /incoming/SPD.3.0.shar.Z

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