home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Illusion - Is Seeing Really Believing?
/
Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
/
pc
/
illusion
/
rock_txt.cxt
/
00344_Text_res34at.txt
< prev
next >
Wrap
Text File
|
1997-02-04
|
645b
|
24 lines
When foreshortening is
isolated from other aspects of
perspective, the equal vertical
bars look different in length
but the equal horizontal bars do
not.
If this conclusion is correct,
it may explain a striking effect
uncovered by Barbara Gillam. In
the illustration to the left,
foreshortening has been
isolated from other usual
concomitants of perspective.
Equally spaced horizontal
contours on a ground plane are
represented as decreasingly
separated vertically. One can
achieve an impression of depth
from it. Accordingly, one
achieves a size illusion in
viewing equal vertical extents
on it.