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"Kenneth" <kdw### [at] earthlink net> wrote in message
news:web.4bdfacfc3d08c812ae92d9930@news.povray.org...
>
> So I finally did a test(!), using a 'typical' camera angle of 67-deg. in
> POV-Ray. (No telephoto, in other words.) And the result is...I don't see
> much
> if *any* perspective difference between small 'nearer' objects and large
> 'farther' objects. (If it's there, it's very subtle.) Hmm, not at all the
> result that I was expecting. I guess it's time to put this idea to rest.
> :-(
As Alain pointed out, there's no difference, and there can't be a
difference. The camera doesn't know how big it is, so all sizes are
relative, something 10m wide 100m away is identical to something 10km wide
100km away.
> Or else 'cheat' the scene, to get what I want! ;-P
This is very common in illustrations and movies: they get a telephoto image
of the moon or a telescope image of a planet and stick it in the background
of a non-telephoto scene, creating artificial flattening.
Personally I like the fact that ray tracers can do stuff more realistically.
I did some test renders using real measurements of the size of planets
viewed from orbiting moons, it's surprising how small the planet appears
with normal camera angles. Even Jupiter viewed from some of its closer moons
is pretty small. But then if you zoom the camera in you get the nice
flattening effect and a very interesting image. I wanted something less
realistic for my IRTC scene but it's nice to know what looks real.
Unfortunately I don't have the test scene on this PC, so I can't show you,
doh!
--
Tek
http://evilsuperbrain.com
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