8

226 Chapter 11: Space Warps and Particle Systems
Send Out Test
Particle View (page 2–121) >ClickSendOutinaneventor
add Send Out to the particle system and then selec t it.
The Send Out test simply sends all par ticles to the
next event, or, conversely, keeps all particles in
the current event. Use Send Out when you simply
want to send particles to another event without
any conditions.
Tip: You can temporarily convert any test to Send
Out. To specify that a test should send al l particles
out without any 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 whether the test
passes all particles on to the next event or keeps
them in the current event. Default=All Particles.
•
All Par ticles—All p art icles are p assed on to the
next event.
•
No Par ticles—All part icles are retained in the
current event.
Spawn Test
Particle View (p age 2–12 1) > Click Spawn in an event or
add Spawn to the par ticle system and then select it.
Spawn creates new particles from existing ones.
Each spawned particle is born at the same location
as its p arent, and has the same orientation and
shape. Spawn can give the spaw ned particles a
different speed and scaling factor. If you wire the
Spawn test to another event, spaw ned particles are
sent to that event, where 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 particles that
encounter Spawn are immediately affected by it.
Thus, if you want particles 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 t he spawned particles to
yet another event, or the particles will continually
respawn. Alternatively , to spawn particles after a
collision, use
Collision Spawn Test (page 2–211) .
See also
Collision Spawn Test (p age 2–211)