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From wljg48e@prodigy.com:
Very cool image!
Try the orthographic camera instead of the long camera position.
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From agage@mines.edu:
Good optical illusion.  I particularly like how Penrose's three beams turned
out.
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From jsaxton@folio.com:
Clever. I did not think that these objects could be represented well with a
raytracer.


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From jjanger@mail.cspp.edu:
   Amazing job. Very clever how you accomplished the illusions. Well done.

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From wozzeck@club-internet.fr:
The construction set is fine, but overall lighting is a bit flat, and the
position of the
objects makes a rather static image.

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From jaime@ctav.es:
Really Unreal!


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From bill.marrs@pureatria.com:
Nicely done.

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From sonya_roberts@geocities.com:
I quite liked this image...producing the optical illusions must have been a
time-consuming
process.  Very nicely done!

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From Jean-Luc.Peuriere@wanadoo.fr:

Very good idea, optical illusions are a great subject
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From tholal@bga.com:
Excellent job with the perspective effects!

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From gmccarter@hotmail.com:
I kept saying to myself, "how did he do that?"
Really nice tabletop surface.

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From cfusner@enter.net:
The textures were quite simplistic, but I enjoyed the puzzles greatly. I admire
the skill with which such images could be adapted to a raytracer. However, one
technical note: if you want "isometric" views with POV-Ray 3, it is far easier
to simply use the new orthographic camera than to fiddle with viewing distance
and angle of view. This useful new camera type has a variety of uses.

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From alex@astro.queensu.ca:
How can they be impossible if you just did them?

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From warwick@troll.no:
povray3 supports this projection directly.

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From SSchanevil@aol.com:
When I started my picture for this topic I wanted to do something just like
this.  Very
quickly I decided that it was not possible (granted I'm very much the beginner).
 I gave
you big technical points.  I like this picture.

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From marvil@algonet.se:
I like the idea (perhaps because I have thought of making the same thing
myself).
It's nicely performed as well. The light is boring though, but perhaps it's
necessary to avoid shadows that give away how the image is made.

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From peter@table76.demon.co.uk:
Clever objects.

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From bsieker@techfak.uni-bielefeld.de:
This is really amazing, I wondered if/how things like that could be done in a
raytracer.


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From web_user@px2-reg2-hme1.melbourne.aone.net.au:
I like the way you have modeled the scene to create the illusion
Notable for modelling


From web_user@firewall.ibertech.com:
Notable for modelling