8

Displace Modifier 611
By default, Displace has the same strength
throughout world space. Increasing Decay causes
the displacement strength to diminish as distance
increases f rom the position of the Displace gizmo.
This has the effect of concent rating the force
field near the g izmo, similar to the field around a
magnet repelling its opposite charge. Default=0.0.
Luminance Center—Determines which level of gray
Displace uses as the zero displacement value.
By default, Displace centers the luminance by using
medium(50percent)grayasthezerodisplacement
value. Gray values greater than 128 displace in t he
outward direction (away from the Displace gizmo)
andgrayvalueslessthan128displaceintheinward
direction(towardtheDisplacegizmo).Usethe
Center spinner to adjust the default. With a Planar
projection, the displaced geometry is repositioned
above or below the Planar gizmo. Default=0.5.
Range=0 to 1.0.
Image group
Lets you choose a bitmap (page 3–1011) and map
(page 3–1062)
to use for displacement. Both are
assigned and removed in the same way.
Bi tmap button—Assigns a bitmap or map from a
selection dialog. After you make a valid choice,
these buttons display t he name of the bitmap or
map.
This button is labeled "None" until you choose a
map.
Remove Bitmap/Map—Removes the bitmap or map
assignment.
Blur—Increase this value to blur or soften the effect
of the bitmapped displacement.
Map group
Contains mapping parameters for bitmapped
displacement. See
UVW Map modifier (page
1–905)
.
The four mapping modes control how Displace
projects its displacement. The t ype of Displace
gizmo and its location in the scene determine the
final effect.