9

Super Spray Particle System 249
TurningConstantoffdoesnotmeanthatthe
birth rate varies automatically; the birth rate
remainsconstantunlessyouanimatetheBirth
Rate parameter.
Emitter G roup
The emitter specifies the area where particles
appear in the scene. It has a geometry you can
display in viewports, but it isn’t renderable.
The emitter is displayed as a rectangle with a
vector pointing out of one side. The vector shows
the direction in which the system emits particles.
You set emitter parameters in the Emitter g roup of
theparticlesystem’sParametersrollout.
Width and Length—You implicitly set the initial
value of these parameters when you drag in a
viewport to create the emitter. You can adjust the
values in the rollout.
Thespaceoccupiedbytheparticlesystematany
given time is the result of a combination of its
initial parameters (size of the emitter, and speed
and variation of emission) and any space warps
that have been applied.
Hide—Turn on to hide the emitter in viewp orts.
When off, the emitter is displayed in viewports.
The emitter is never rendered. Default=off.
Super S pra y Pa r ti cl e S ys tem
Create panel > Geometry button > Choose Particle
Systems from the drop-down list. > Objec t Type rollout >
Super Spray
Create menu > Particles > Super Spray
Super Spray emits a controlled spray of particles.
This particle system is like the simple Spray
particle system with the added power provided by
all the newer part icle systems.
Tip: To animate p articles following a path through
space, use the Path Follow space warp (page 2–71).
Super Spray viewport icon (emitter)
Particles emerging from a super spray system
Procedure
To creat e a super s pray particl e sys te m:
1.
OntheCreatepanel,makesurethe
Geometry button is active and Particle Systems
is chosen in the object category list, then click
Super Spray.
2. Drag in any viewport to create the Super Spray
emitter icon; see Creating a Particle Emitter
(page 2–239).
The icon appears as an intersecting plane and
circle with an arrow. The initial direction of the