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Loop When on, and the last ID has been assigned, the software loops back
around to the first ID and continues the cycle. When off, the software assigns
the last cycle ID to all subsequent particles. Available only with the Cycle
assignment method. Default=off.
For example, say you want the first eight particles that enter the event to use
different materials, and all subsequent particles to use a ninth material. To do
so, you would create a nine-sub-material Multi/Sub-Object material and assign
it to the Material Dynamic operator. Choose the Cycle assignment method,
and set # Sub-Materials=9. Set the Rate Per Sec value to the rate at which
particles enter the event. Lastly, turn off Loop.
Sync By Choose the time frame for applying animated parameters. Available
only with the Material ID and Cycle options.
■ 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.
Rand Offset When on, the software varies the difference between the particle
age and the assigned material ID at random. The maximum difference is
determined by the numeric parameter. Available only with the Material ID
and Cycle options.
Uniqueness group
The Uniqueness setting varies the sequence of assigned IDs with the Random
option, and the offset with the Randomize Age Offset option.
Seed Specifies a randomization value.
New Calculates a new seed using a randomization formula.
Mapping Operator
Particle View on page 2811 > Click Mapping in an event or add a Mapping
operator to the particle system and then select it.
The Mapping operator lets you assign a constant UVW mapping to the entire
surface of the particles. It works in conjunction with a map specified in a
material operator in the current event. By animating the mapping coordinates,
2932 | Chapter 14 Space Warps and Particle Systems