Saylor URL: http://www.saylor.org/books Saylor.org
Name Description Example Image
Relative size Assuming that the
objects in a scene are
the same size, smaller
objects are perceived
as farther away.
At right, the cars in
the distance appear
smaller than those
nearer to us.
Linear
perspective
Parallel lines appear to
converge at a distance.
We know that the
tracks at right are
parallel. When they
appear closer
together, we
determine they are
farther away. (^)
Light and
shadow
The eye receives more
reflected light from
objects that are closer
to us. Normally, light
comes from above, so
darker images are in
shadow.
We see the images at
right as extending
and indented
according to their
shadowing. If we
invert the picture, the
images will reverse.
Figure 4.2