P3D Phantograms

[Peter Abrahams <telscope@xxxxxxxxxx>]

I believe I've finally figured out that a Phantogram is a stereo image that
is viewed from a 45 degree angle (like you'd view your dinner plate at the
table).  It protrudes 'through the window' and appears above the paper it
is printed on.  If it is a drawing, the laws of perspective must be applied
because of the angle of view.  It would be a real technical feat to apply
this to photography, as Boris has done.
I am still unclear as to why this is more useful than a stereo image that
is viewed with the paper perpendicular to the line of sight.  If you are
making an engineering drawing, then a perspective view from an angle can be
useful.  But why would it be useful in a photo?  Why not just 'float the
image through the window'?

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Peter Abrahams   telscope@xxxxxxxxxx


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