POV-Ray: Newsgroups: povray.newusers: Why is my sphere egg-shaped?

POV-Ray : Newsgroups : povray.newusers : Why is my sphere egg-shaped?		Server Time 30 Jul 2024 08:24:42 EDT (-0400)

From: Mattie
Subject: Why is my sphere egg-shaped?
Date: 2 Sep 2004 05:40:00
Message: <web.4136e9f35fe4156469ac086d0@news.povray.org>

Hi,
    I've discovered that, when i'm trying to render a moon, and I change the
viewing direction so that it appears in the corner of the viewing window,
it becomes slightly skewed. This is also true when I try to translate the
moon object to a corner of the viewing window.
The code uses an isosurface, and is based much on a tutorial found here:
http://www.xenoarch.com/tutorials/moon.html
Would anyone be able to tell me why please?

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From: Thorsten Froehlich
Subject: Re: Why is my sphere egg-shaped?
Date: 2 Sep 2004 05:54:30
Message: <4136edd6$1@news.povray.org>

"Mattie" <nomail@nomail> schrieb im Newsbeitrag
news:web.4136e9f35fe4156469ac086d0@news.povray.org...
> Hi,
>     I've discovered that, when i'm trying to render a moon, and I change
the
> viewing direction so that it appears in the corner of the viewing window,
> it becomes slightly skewed. This is also true when I try to translate the
> moon object to a corner of the viewing window.
> The code uses an isosurface, and is based much on a tutorial found here:
> http://www.xenoarch.com/tutorials/moon.html
> Would anyone be able to tell me why please?

<http://tag.povray.org/povQandT/misconceptions.html#perspectivespheres>

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