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216 Chapter 11: Space Warps and Particle Systems
Inter face The user interface appears in the parameters panel,
on the right side of the Particle View dialog.
In the context of Collision Spawn, a pare nt is the
original particle from which new particles are
spawned.
Test True for group
These check boxes let you specify which par ticles,
if any, should become eligible for redirection to the
next event upon satisfaction of the test conditions.
Note: After a particle tests True, the Collision
Spawn test no longer tests the particle for collision.
If you simply want particles to spawn ever y time
they collide, t urn either or both of these off and
use a different test for redirection.
Parent Particles—When on, parent particles qualify
for redirection when the test conditions are met.
Default=on.
When using the SpawnOnFirstCollisionoption,
Parent Particles is available only when Delete
Parent is off.
This option is also available when using the Spawn
On Each Collision option.Inthiscase,parent
particles test Tr ue only after colliding the number
of times specified by the Until # value.
Spawn Particles—When on, spawned par t icles
qualify for redirection when the test conditions are
met. Default=on.
Deflectors group
This group displays the deflectors currently in
effect, and let you add and remove deflectors.
[list]—Shows the deflectors that apply to this
operator. If more than three deflectors apply, a
scroll bar appears at the right side of the list.
If you delete a listed space w arp from the scene,
itsnameisreplacedinthelistbytheentry
“<deleted>”.