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From: sdh@joevax.UUCP (The Doctor)
Newsgroups: net.graphics
Subject: Ray Trace problems
Message-ID: <220@joevax.UUCP>
Date: Wed, 30-Jul-86 15:24:42 EDT
Article-I.D.: joevax.220
Posted: Wed Jul 30 15:24:42 1986
Date-Received: Thu, 31-Jul-86 21:11:32 EDT
Distribution: net
Organization: Bell Communications Research Inc., Morristown, NJ
Lines: 17


The ray tracer as posted dumps after doing 37.6% of the task,
returning the error: floating point exception.

There were no compile time errors.

Question: is the resolution of the output supposed to 450 x 450,
and are the pixels supposed to be non-square?
I plotted the data on a macintosh(square pixels) using a routine to
simulate gray level.  What it displayed looked like a grid on an angle
with one squashed sphere.

If there is interest, I will post the routines to convert the files from
256 level gray to 2 level.

Steve Hawley
joevax!sdh