2009

NOTE With the Overwrite Once and Inherit Once scaling types, scaling always
occurs with respect to the entire animation; that is, in Absolute Time mode. Thus,
when either of those scaling types is in effect, the Sync By setting is unavailable.
Also, if you animate Scale Factor or Scale Variation when using Overwrite Once
or Inherit Once, it doesn't cause scaling animation in the particles, but rather
applies one-time scaling to particles born during that period. For instance, if you
animate Scale Factor on all three axes from 100% to 200% over frames 0 to 30,
particles born at frame 0 are normal size, particles born at frame 15 are
one-and-one-half times normal size, and particles born at frame 30 (and thereafter)
are twice normal size.
Sync By Choose the time frame for applying animated parameters:
■ Absolute Time Any keys set for parameters are applied at the actual frames
for which they're set.
■ Particle Age Any keys set for parameters are applied at the corresponding
frames of each particle's existence.
■ Event Duration Any keys set for parameters are applied to each particle
starting when it first enters the event.
Uniqueness group
The Uniqueness setting affects the randomization of scale variation.
Seed Specifies a randomization value.
New Calculates a new seed using a randomization formula.
Speed
Speed Operator
Particle View on page 2811 > Click Speed in an event or add a Speed operator
to the particle system and then select it.
This is the default Speed operator, which appears in the first event when you
create a new Particle Flow icon. It provides basic controls over particle speed
and direction.
Directional controls provided by the Speed operator are based on the position
and orientation of the Particle Flow icon. For best results when using other
Particle Flow | 2871