Does POV-Ray have the ability to generate and reveal the "real" images (at
it's focal point) of objects placed at the "center of curvature (twice the
focal length)" of a parabolic mirror (defined as a 2nd-order Infinite Solid
Object with "Mirror" finish)?

Thanks,

Catseyeman

Post a reply to this message

Catseyeman <fly### [at] catseyecollimationcom> wrote:
> Does POV-Ray have the ability to generate and reveal the "real" images (at
> it's focal point) of objects placed at the "center of curvature (twice the
> focal length)" of a parabolic mirror (defined as a 2nd-order Infinite Solid
> Object with "Mirror" finish)?

  If you would explain in more detail how this works in the real world
it would be easier to answer your question.

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

Post a reply to this message

"Catseyeman" <fly### [at] catseyecollimationcom> wrote in message
news:web.42405194edb804effc6b09970@news.povray.org...
> Does POV-Ray have the ability to generate and reveal the "real" images (at
> it's focal point) of objects placed at the "center of curvature (twice the
> focal length)" of a parabolic mirror (defined as a 2nd-order Infinite
Solid
> Object with "Mirror" finish)?

Do you mean like the optical illusion mirrors? Don't see why not. If it's
relevant to what you want to achieve, you might need photons, but afaik they
wouldn't be required.

Suck it and see?

Post a reply to this message

Warp <war### [at] tagpovrayorg> wrote:
> Catseyeman <fly### [at] catseyecollimationcom> wrote:
> > Does POV-Ray have the ability to generate and reveal the "real" images (at
> > it's focal point) of objects placed at the "center of curvature (twice the
> > focal length)" of a parabolic mirror (defined as a 2nd-order Infinite Solid
> > Object with "Mirror" finish)?
>
>   If you would explain in more detail how this works in the real world
> it would be easier to answer your question.
>
> --
> #macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
> [1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
> -1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

A parabolic mirror (as is used in a mirror-type telescope) collects the
light from distant objects (like the moon, planets, etc.) and projects a
"real" image of those objects at its focal point (where the eyepiece lens
is positioned).  If you were to put a piece of paper at the focal point you
would "see" the image on the paper.  This is different from a "virtual"
image that is ssen when you see yourself in the mirror.

Does POV-ray have the funtionality to simulate the "projected" image from a
parabolic mirror?

Post a reply to this message

"Tom Melly" <pov### [at] tomandlucouk> wrote:
> "Catseyeman" <fly### [at] catseyecollimationcom> wrote in message
> news:web.42405194edb804effc6b09970@news.povray.org...
> > Does POV-Ray have the ability to generate and reveal the "real" images (at
> > it's focal point) of objects placed at the "center of curvature (twice the
> > focal length)" of a parabolic mirror (defined as a 2nd-order Infinite
> Solid
> > Object with "Mirror" finish)?
>
> Do you mean like the optical illusion mirrors? Don't see why not. If it's
> relevant to what you want to achieve, you might need photons, but afaik they
> wouldn't be required.
>
> Suck it and see?

Yes, like the 2 parabolic trick mirrors that face each other.  The one on
the top has a hole in it and when an object is placed in the center of the
bottom mirror, it's "image" is projected out the hole of the top miror.  It
looks like the object in all it's 3D slendor as if you could touch it, but
it's just a "real" image.... kind of like a hologram.

I'm not familiar with "using photons".  How do you do this?

Post a reply to this message

news:web.4240eaea17258e13a044d34b0@news.povray.org...
>
> I'm not familiar with "using photons".  How do you do this?
>

You'll find an excellent tutorial at Nathan Kopp's website
http://nathan.kopp.com/photons.htm
Though I'm afraid that to build a real neat image with photons neads huge
computing ressources, memory as CPU

Marc

Post a reply to this message