9

188 Chapter 11: Space Warps and Particle Systems
See also
Ma terials and Mapping in Particle View (page
2–186)
Material Frequency Operator (page 2–189)
Material Dynamic Operator (page 2–191)
Inter face
The user interface appears in the parameters panel,
ontherightsideoftheParticleViewdialog.
Assign Materia l—When on, the operator assigns a
material to the particles. Default=on.
[button]—Use this button to assign a material to
the operator. Click the button and then use the
Material/Map Browser to choose the material.
Alternatively, drag the material from a Material
Editor sample slot to the button. After you assign a
material to the operator, its name appears on the
button.
Assign M aterial ID—When on, the operator
defines a material ID number for each par ticle.
Default=off.
Show In V iewport—When on, the material is shown
applied to the particles in t he v iewports.
Assignment Method
The Material Static operator gives you a choice of
three different methods for assigning Material IDs
to particles:
Material ID—Assigns the same material ID to all
particles. Use the numeric field to set the ID value.
Cycle—Assigns each particle a material ID in
the range 1 to N, where N=# Sub-Materials, in
increasing sequential order. The first ID assigned
is 1, then 2, then ..., then N, then 1 again, and so
on.
Random—Assigns each p article a random material
ID in the range 1 to N, where N=# Sub-Materials.
# Sub-Materials—The h ighest ID number assigned
to particles using the Cycle or Random option.
In general, set this to the same number of
sub-materials in t he Multi/Sub-Object material. If
you set it to a smaller number, the operator w i ll
use only that many sub-materials, starting with the
first and counting upward.
Note: The software automatically sets this value
to the number of sub-materials in the material,
once only, the first time you apply the material
to the operator. Any subsequen t changes in the
material itself, or apply ing a different m aterial to
theoperator,willnotchangeorupdatethesetting.
Rate group
These settings let you choose the basis on w hich
the operator changes material ID assignments, and
specify the rate of change.
Per S econd—Sets the number of times per second
that the a ssigned material ID is incremented.