I have a really nice book called 'Hidden Images' that came with a little
sheet of mylar that you rolled up into a cylinder to see the images. And
there were examples of images viewed in cones.. I don't know where to get
a mirrored cone, but I bet they are expensive.. ha. Anyway, these are
'cylindrical anamorphic' and 'conical anamorphic' images..
Check the library, 'hidden images' is out of print but it has some
wonderful work in it (if you can find it). I'm especially fond of the work
of Pozzo.. He did an anamorphic hallway in the Vatican.. It has an arched
roof, but when you stand at the center (marked by a marble disc on the
floor) the painted arched ceiling suddenly appears to have a flat roof
with ornate columns holding it up..
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Charles Eicher
cei...@netins.net
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NIce observation Traci, but that painting is by Holbein, not Altdorfer.
The technique you mention is called "anamorphic projection," and it was
very popular during the 16th century. Some painting were painted so they
were almost abstract from a frontal view, but when viewed as you ascended
a staircase they would look realistic. On table I saw looked like an abstract
expressionist piece with a pefect circle in the middle: when a polished
brass cylinder was placed in the circle, a realistic painting was visible
in the reflection in the cylinder.
vance