8

254 Chapter 11: Space Warps and Particle Systems
4.
Select the PArray icon.
5. OntheParticleTyperolloutintheMat’l
Mapping And Source group, choose Pick ed
Emitter.
6. IntheParticleTyperollout>ParticleTypes
group, turn on Object Fragments.
7. Make sure the t hree spinners in the Fragment
Materials group are set to 1, 2, and 3,
respectively (or match the numbers with
the sub-materials you’ve assigned in your
multi/sub-object material).
Tip: Using a complex distribution object for
object-fragment particles can really slow down
viewport interaction. You can use a simple
stand-in object as the distribution object, and
then later use the File/Replace command to
replace the distribution object with a more
complex object of the same name.
Inter face
Basic Par ameters Rollout (PAr ray) (page 2–254)
Part icle Generation Rollout (page 2–256)
Part icle Type Rollout (page 2–258)
Rotation and Collision Rollout (page 2–264)
Object Motion Inheritance Rollout (page 2–265)
Bubble Motion Rollout (page 2–266)
Part icle Spawn Rollout (page 2–267)
Load/Save Presets Rollout (page 2–270)
Basic Parameters Rollout (PArray)
Create panel > Geometry button > C h oose Particle
Systems from the drop-down list. > Object Type rollout >
Parray > Basic Parameters rollout
TheitemsontheBasicParametersrolloutletyou
create and adjust the size of the particle system,
and pick the distribution object. In addition,
they let you specify the initial distribution of
theparticlesinrelationtothegeometryofthe
distribution object, and the initial velocity of the
particles from the distribution object. From here,
you can also specify how the particles appear in
the viewpor t.
Interfa ce
Object-Based Emitter group
Pick Object—After you create the particle-system
object, the Pick Object button b e comes available.
Click this button, and then click to select an object
in your scene. The selected object b ecomes the