Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!husc6!harvard!panda!genrad!decvax!bellcore!petrus!magic!joevax!sdh
From: sdh@joevax.UUCP (The Doctor)
Newsgroups: net.graphics
Subject: question about the tracer
Message-ID: <235@joevax.UUCP>
Date: Wed, 13-Aug-86 11:06:02 EDT
Article-I.D.: joevax.235
Posted: Wed Aug 13 11:06:02 1986
Date-Received: Thu, 14-Aug-86 08:43:12 EDT
Distribution: net
Organization: Bell Communications Research Inc., Morristown, NJ
Lines: 26


To the man who wrote the ray tracer (I tried reaching you by mail, but I
got everything bounced back).

Like the program.  One problem: Everything comes out very dim. I tried changing
the default for "sam" (contrast) but that didn't help.
To make things brighter, would I change the ambient lighting, or what?

Also Susie doesn't come out at all.  Very indistinct.  Too bad.


After a few fixes, I will post a new version of my program to convert the
output from the ray tracer to 2 level gray.  As it stands, the program will
now use the header in the file for dimensions and produce output suitable
for a Macintosh.  I fixed a minor bug in the ditherer and the output is much
better.  I will also probably add an option for output as a hex bitmap.

To the best of my knowledge, the -S option (for contrast) doesn't work.
I've tried the following:
tracer -S0.9
tracer -S 0.9

That generates errors.  What gives?

Steve Hawley
joevax!sdh