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(Barré) #1

Advanced perspective distortions


5-1 ADVANCED PERSPECTIVE No.1

Roll-over perspective

Here is a painting that utilizes a
single vanishing point without
unduly discomforting the eye. I
call this roll-over perspective.
My aim in this painting was to
paint the total extent of the
landscape beyond what the
camera or the eye would see,
and without moving the eye's
cone of vision.
As the landscape is essentially
flat the illusion needed is one
that combines (in the
perspective mode) a plan view
with an elevation. Also to make
the transition as seamless as
possible! Secondly the
perspective scale must be such
that the distance from tee to
green should still appear at
least 400 yds.

Two essentials must be realised
to understand how the illusion
is completed.

First: the eye has a natural cone of vision wherein it
can focus. This is usually about 30 degrees. Beyond this
cone focus is lost - even though movement is
discernable up to 160 degrees(wiggle your thumbs and
see when they disappear). To look at my painting you
will note I trick or force the eye to alter its cone of
vision, when it really, is not necessary. It does not have
to refocus to see the entire painting, but I make it
believe it does. We are forced to look 'down' at the tee
and 'up' at the green.The eye will refuse to do
otherwise.
Second: the perspective scale is distorted in that I

http://www.geocities.com/~jlhagan/advanced/persp.htm (1 of 2)1/13/2004 3:43:43 AM

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