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Illusion - Is Seeing Really Believing?
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Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
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00048_Text_res02t.txt
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1997-02-04
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934b
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30 lines
We can attend to the
actual visual angles subtended
by objects in the world by
assuming a special attitude of
the kind taken by artists.
Usually this requires some
effort on our part. However, in
instances in which objects are
seen at great distances or are
extremely foreshortened, we
often become spontaneously
aware of the sizes of these
angles. Thus, in driving down a
road, we see the roadΓÇÖs edges as
parallel, yet we are often aware
at the same time that its sides
converge toward the horizon.
Later in the chapter I will
discuss the significance of this
subsidiary awareness we
sometimes have of the actual
visual angles formed by objects.
However, although we can
perceive objects as an artist
does, these perceptions are not
the central or most salient
aspect of the way the world
looks to us. That most salient
aspect is constancy.