POV-Ray : Newsgroups : povray.binaries.images : Viewing geometry problem : Re: Viewing geometry problem Server Time
31 Jul 2024 20:12:11 EDT (-0400)
  Re: Viewing geometry problem  
From: clipka
Date: 4 May 2009 06:25:00
Message: <web.49fec16ac9b881af451fd6cd0@news.povray.org>
"sooperFoX" <bon### [at] gmailcom> wrote:
> >   Did you take into account perspective? You are not using a disc, but a
> > sphere, and perspective will make the half of the sphere closer to the
> > camera be larger than the "disc" at that exact distance.
> >
> >   You should try it with a true disc object instead.
>
> I don't think the spherical shape would have *that much* of an effect.

We're talking about a ratio of distance vs. radius of roughly 2:1. At that
distance, we're talking about roughly 10-15% "overshoot" (didn't bother to
calculate it, just drew a picture instead and measured), which would fit the
bill quite well it seems.


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