2009

result: True or False. So, as tests, they work on a continuous basis. For example,
Age Test checks each particle's age at every integration step, because particles
might not reach the specified age until remaining in the event for a while,
and also because another action in the event might change or reset particle
age.
The principal exceptions to this are the Split tests, which test each particle
only when it first enters the event. That is, a Split test splits the particle stream
only once for each particle that enters the event. Any particles that remain in
the event are not subject again to being split off from the stream by the same
test. Also, the Send Out test performs no test, but simply moves particles along
to the next event.
Some tests also function as operators, in that they directly affect particle
behavior. These are the ones listed here, and the specified time frame is related
to the operator functionality, not the test.
Time FrameTest
ContinuousCollision Spawn
ContinuousFind Target
ContinuousGo To Rotation
Depends on scriptScript Test
Continuous, except once with OnceSpawn
Operators
The operator is the basic element of the particle system; you combine operators
into events to specify the particles' characteristics over a given period of time.
Operators let you describe particle speed and direction, shape, appearance,
and more.
The operators reside in two groups in the Particle View depot, and within each
group appear in alphabetical order. Each operator's icon has a blue background,
except for the Birth operators, which have a green background. The first group
contains operators that directly affect particle behavior, such as transformation.
Particle Flow | 2841