User Manual

Probability
The Probability slider determines the percentage of chance that the node affects any
given particle.
The default value of 1.0 affects all particles. A setting of 0.6 would mean that each particle has a
60 percent chance of being affected by the control.
Probability is calculated for each particle on each frame. For example, a particle that is not
affected by a force on one frame has the same chance of being affected on the next frame.
Start/End Age
This range control can be used to restrict the effect of the node to a specified percentage of
the particle lifespan.
For example, to restrict the effect of a node to the last 20 percent of a particle’s life, set the
Start value to 0.8, and the End value remains at 1.0. The node on frames 80 through 100 only
affects a particle with a lifespan of 100 frames.
Set Mode Menu
The Set Mode menu drives how the particle node influences the active particle sets. There are
three options from this menu:
 Ignore Sets: The particle node disregards the state of the Set checkboxes and applies
to all nodes.
 Affect Specified Sets: The particle node applies its behavior to the active Set
checkboxes only.
 Ignore Specified Sets: The particle node applies its behavior to the inactive Set
checkboxes only.
Set #
The state of a Set # checkbox determines if the Particle node’s effect will be applied to the
particles in the set. It allows you to limit the effects of some nodes to a subset of particles.
Sets are assigned by the nodes that create particles. These include the pEmitter, pImage
Emitter, pChangeStyle, and the pSpawn nodes.
Region Tab
The Region tab is used to restrict the node’s effect to a geometric region or plane, and to
determine the area where particles are created if it’s a pEmitter node or where the behavior of a
node has influence.
pEmitter Regions tab set to mesh
Chapter – 103 Particle Nodes 2321