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214 Chapter 11: Space Warps and Particle Systems
set a Divergence so they eventually spread out.
Default=Inherited.
Par ent—Specify t he parent’s behavior. Available
only when Delete Parent is off.
•
Bounce—The speed and direction after collision
is determined by the deflector proper ties.
•
Co ntinue—Particle speed and direction are
unaffected by the collision.
Offspring—Specif y the behavior of the newly
spawned particles.
•
Bounce—The speed and direction of offspring
after collision is determined by the deflector
properties.
•
Co ntinue—Speed and direction of offspring are
unaffected by the collision.
In Units—Choose this to specif y the speed of
spawned particles in system units per second.
Default=100.0.
A positive value inherits the parent ’s direction; a
negative value reverses it.
Inher ited—Choose this to specify each spawned
particle’s speed as a percentage of its parent’s
speed. Default=100.0
A positive value inherits the parent ’s direction; a
negative value reverses it.
Variation—The amount by which a spawned
particle’s speed can vary randomly. D efault=0.0.
To obtain the actual speed for each spawned
particle, the system multiplies the Variation va lue
by a random number between -1.0 and 1. 0, and
then adds the result to the particle’s speed as
specified or inherited. For example, if a part icle’s
speed is 100 units/second and Variation=20, then
thetestedvalueforeachparticlewouldbebetween
80 and 120 units/second.
Divergence—When on, spreads out the st ream
of spawne d particles. Use the numeric setting to
define the extent of the divergence in degrees.
Range=0 to 180. Default=0.
Size group
Scale Factor—The amount of uniform scaling to
apply to each spawned particle, as a percentage of
its parent’s size. Default=100.0.
Variation—The amount by which a spawned
particle’s scale can vary randomly. Defau lt=0.0.
To obtain the actual scaling for each spawned
particle, the system multiplies the Variation value
by a random number between -1.0 and 1 .0, and
thenaddstheresulttotheScaleFactorvalue.For
example, if Scale Factor=100 and Variation=20,
then each spawned particle would be between 80
and 120 percent of its parent’s size.
Uniqueness group
The Uniqueness setting enables r andomization of
the Spawnable result, when less than 100.0, as well
as of the Variation values.
Seed—Specifies a randomization value.
New—Calculates a new seed using a randomization
formula.
Find Target Test
Particle View (page 2–121) > Click Find Target in an event
or add Find Target to the particle system and then select
it.
Select a Find Target icon in the viewport. > Modify panel
>Parametersrollout
Create panel > Helpers > Particle Flow > Find Target
By default, Find Target sends par ticles to a
specified target or targets. Upon reaching a target,
the particles become eligible for redirection to
another event. You can specify that the particles
should use a particular speed or time frame in