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Collision Spawn Test 211

Collision Spawn Test

Particle View (p age 2–121 )

> Click Collision Spawn in an

event or add Collision Spawn to the particle system and

then select it.

Collision Spawn creates new particles from

existing ones that collide with one or more

Deflector space warps. You can specify different

post-collision behavior for the colliding particles

and their offspring. E ach spawned par ticle is born

at the same location as its parent, and has the same

orientation and shape. Collision Spawn can give

the spawned particles a different speed and scaling

factor. If you wire the Collision Spawn test to

another event, spawned particles are sent to that

event, where you can specify different proper ties

for the new particles.

Examples of Collision Spawn usage include marks

or explosions resulting from collisions between

particles and objects. To achieve these effects, you

can use Collision S pawn in conjunction with the

Shape Mark (page 2–179)

and

Shape Facing (page

2–172)

operators.

The Collision Spawn test supports all deflector

space warps except the DynaFlect deflectors:

•

POmniFlect (page 2–74)

•

SOmniFlect (page 2–80)

•

UOmniFlect (page 2–81)

•

SDeflector (page 2 –83)

•

UDeflector (page 2–85)

•

Deflector (page 2–86)

Tip: When testing for collisions with multiple

deflectors, for best results, place all the deflectors

in a single Collision Spawn test. This tests for

collisions with all the deflectors simultaneously,

and helps avoid p oss ible missed collisions.