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Modifier-Based Space Warps 103
of a tal l cy linder with many height seg ments, and
adjust Falloff to be less than the height of the
cylinder.
Fa lloff On—Turn on to use the Falloff setting. The
falloff range appears as a yellow, tri-hooped sphere.
Fragment Size group
Thesetwoparametersdefinethenumberoffaces
per fragment. Any given fragment will have a
number of faces, randomly determined, between
the Min and Max va lues.
Min—Specifies the minimum number of faces
per fr agment to be randomly generated by the
"explosion."
Max—Spec ifies the maximum number of faces
per fr agment to be randomly generated by the
"explosion."
General group
Gravity —Specifies the acceleration due to gravity.
Notethatgravityisalwaysinthedirectionofthe
world Z axis. You can have negative gravity.
Chao s —Adds random variation to the explosion
to make it less uniform. A sett ing of 0.0 is totally
uniform; 1.0 is a realistic setting. A value greater
than 1.0 makes the explosion extra chaotic.
Range=0.0 to 10.0.
Detonation—Specifies the frame at which the
bomb goes off. Bound objects are unaffected
before this time.
Seed—Change to alter randomly generated
numbersinthebomb.Youcanachieveadifferent
bomb effect by changing Seed while maintaining
the other settings.
Although you can animate strength and gravity,
theequationsusedforprojectilemotionassume
they are constant. Therefore, the motion will not
be physically correct, but it might look interesting.
Also, if the bomb object is in motion during the
blast, t he result is not physically correct.
M odif ier -B a sed
M odi fi er -B a sed S pa ce Wa r ps
Create panel > Space Warps > Modifier-Based
Create menu > Space Warps > Modifier-B as ed
Modifier-based space w arps duplicate the effects
of standard object mo difiers. Like other space
warp s, they must be b ound to objects, and they
work in world space. They are useful when you
want to apply effects such as Twist or Bend to a
widely scattered group of objects.
Creating Modifier-B ased Space Warps
You create modifier-based space warps the
same way that you c reate other space warp s.
Modifier-based space warps are listed on the
Create panel as a separate category under S pace
War ps.
All the modifier-based space warps use a
box-shaped (nonrenderable) object. When you
create one, y ou use the mouse in the viewport as
you do when creating a Box primitive.
Unlike their modifier versions, these space warps
do not have sub-objec t levels.