POV-Ray : Newsgroups : povray.general : Moon : Re: Moon Server Time
10 Aug 2024 15:24:43 EDT (-0400)
  Re: Moon  
From: Andrea Ryan
Date: 11 Jan 2000 18:18:41
Message: <387BB7A3.FD5C905F@global2000.net>
Angle 6 might be better.
Brendan Ryan

Andrea Ryan wrote:

> Here's my camera statement.  The Moon looks about right when it's viewed
> from the surface of the Earth.
>
> camera {
>         location <0,0,3963>
>         look_at <0,0,255500>
>         angle 4
>         }
>
> Brendan Ryan
>
> Mike Williams wrote:
>
> > Wasn't it Andrea Ryan who wrote:
> > >Hello,
> > >I am trying to make a picture of the Earth and the Moon.  One POV unit
> > >equals one mile.  The Moon is something like 250000 miles from the
> > >origin and it is nothing but a tiny, gray speck.  When the camera is
> > >near the Moon, the Earth looks small too.  Is there a limit on how far
> > >apart objects can be?  I might have one POV unit equal to 100 or 1000
> > >miles.
> >
> > There's a sort of optical illusion that makes the Moon seem to be much
> > larger than it is. If you take a photo that includes the moon with, say,
> > a 50mm lens, the picture looks like this:-
> >
> >  +-------------------------------------------+
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                     O                     |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  |                                           |
> >  +-------------------------------------------+
> >
> > A POVray image that uses the default camera angle will look similar. To
> > get a decent looking photo of the Moon you need to use quite a long
> > telephoto lens, so in POVray, that would mean setting your camera to
> > something like this.
> >
> > camera {location < 0, 0, -250000>look_at <0,0,0> angle 2}
> >
> > --
> > Mike Williams + #
> > Gentleman of Leisure


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.