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From: billd@celerity.uucp (Bill Davidson)
Newsgroups: comp.graphics
Subject: MTV raytracer and Eric Haines test nff files
Message-ID: <561@celit.UUCP>
Date: 21 Aug 89 23:14:12 GMT
Sender: news@celerity.UUCP
Reply-To: billd@celerity.UUCP (Bill Davidson)
Organization: FPS Computing Inc., San Diego CA
Lines: 14

I sent mail to Mark V about this but I never got an answer (I'm
not absolutely sure he ever got my mail since it bounced with the
first two addresses that I tried, the third didn't bounce but it
may have fallen into email hell).  Anyway, I'm trying to run ray on
the nff files generated by Eric Haines programs as distributed
from uoregon.  The aspect ratios seem screwed up in general but
especially on cylinders and cones.  I'm not sure if it's a problem
in the ray-tracer or in the nff files.  Anyway, anything circular
which is oriented horizontally will be stretched out.  I'm computing
these things in a square field with square pixels.  Anyone out
there know how to fix this (is there a way to set aspect ratio
somewhere?).

--Bill