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230 Chapter 11: Space Warps and Particle Systems
Send Out Test
Particle View (page 2–125) >ClickSendOutinaneventor
add Send Out to the particle system a nd then select it.
The Send Out test simply sends all particles to the
next event, or, conversely, keeps all particles in
the current event. Us e S end O ut when you simply
want to send par ticles to another event without
any conditions.
Tip: You can temporarily convert any test to S end
Out. To specify that a test should send all particles
out without an y conditions, click the left side
of its icon in Particle view; the icon changes to
a green light bulb to indicate that all particles
automatically test True. Or, if you click the right
side of the icon, it changes to a red light bulb ,
indicating that all particles test False and thus will
stay in the current event. To revert to the test’s
original function, click its icon again.
Inter face
The user interface appears in the parameters panel,
ontherightsideoftheParticleViewdialog.
Test True For—Lets you specify w hether the test
passes all particles on to the next event or keeps
them in the current event. Default=All Particles.
•
All Particles—All particles are passed on to the
next event.
•
No Pa r ticles—A ll particles are retained in the
current event.
Spawn Test
Particle View (page 2–125) >ClickSpawninaneventor
add Spawn to the particle system and then selec t it.
Spawn creates new particles from existing ones.
Each spawned particle is born at the same location
as its parent, and has the same orientation and
shape. Spawn c an give the spawned par t icles a
different speed and sca ling factor. If you wire the
Spawn test to another event, spawned par ticles are
sent to that event, w here you can specify different
properties for the new particles.
Spawn is a test only in that it sends the spawned
particles to another event (if wired); it doesn’t
actually test any properties. All p articles t hat
encounter Spawn are immediately affected by it.
Thus, if you want par t icles to spawn based on the
results of a test, use a different test that branches to
an event containing the Spawn. In such a case, you
might want to then send the spawned particles to
yet another event, or the part icles will continually
respawn. Alternatively, to spawn particles after a
collision, use Collision Spawn Test (page 2–215).
See also
Collision Spawn Test (page 2–215)