8

Particle Spawn Rollout 267
Variation—
ThepercentofAmplitudevariation
applied to each particle.
Peri od—The cycle time for one complete
oscillation of a particle through the bubble "wave."
A recommended value might b e 20 to 30 intervals.
Note: Bubblemotionismeasuredintime,notin
rate, so a very large Period value means the motion
takes a long time to complete. Thus, there is no
motion, effectively. Period is therefore set to a ver y
largedefaultvaluesothatthedefaultmotionof
this type is none.
Variation—The percent of Period variation for
each particle.
Phase—The initial displacement of the bubble
pattern along the vector.
Variation—ThepercentofPhasevariationforeach
part icle.
Par ticle S pawn R ollout
Create panel > Geometry button > C h oose Particle
Systems from the drop-down list. > Object Type rollout
> SuperSpray/Blizzard/Parray/PCloud > Particle Spawn
rollout
Select a S uperSp ray/Blizzard/Parray/PCloud emitte r. >
Modify panel > Particle Spawn rollout
TheoptionsontheParticleSpawnrolloutletyou
specify what happens to particles when they die, or
when they collide with a particle deflector. Using
the options on this rollout, you can have part icles
generate additional generations of particles upon
collision or death.
Interfa ce
Par ticle Spawning Effects group
Choose one of these options to determine what
happens to the particles at either collision or death.
None—Uses none of the spawning controls, and
theparticlesactastheynormallywould. That
is, upon collision, they either bounce or stick,