8

Multi/Sub-Object Material 1405
3.
Click Sub-Object and choose Face as the
sub-object category.
4. Select the faces to which you will assign a
sub-material.
5. Apply a Material modifier (page 1–706) ,and
set the material ID value to the number of the
sub-material you want to assign.
Theviewportupdatestoshowthesub-material
assigned to the selected faces.
The material ID values in the multi/sub-object
mater ial and the material ID numbers in the
Select Face rollout correspond. If you set the
ID to a number that doesn’t correspond to a
material con tained in the multi/sub-object
material,thefacesrenderasblack.
Wa rn in g : Some geometric primitives do not use 1 as
the default material ID, and some, such as hedra or box,
have multiple material IDs by default.
Tip:
Yo u c a n a l s o u s e t h e Edit Mesh modifier (page
1–613)
to assign a contained material to selected
faces. Apply Edit Mesh to the object, go to the
Face sub-object level, and select the faces to assign.
Then on the Edit Surface rollout, set the material
ID value to the ID of the sub-material. (You can
drag and drop (page 2–1268) amulti/sub-object
material to an Edit Mesh modifier as you c an to
an editable mesh object.)
To add a new sub-material:
•ClickAdd.
Anewsub-materialisaddedtotheendof
the list. By default, the new sub-material’s ID
number is one greater than the highest material
ID already in use.
To remove a sub-material:
1.
Select the sub-material by clicking its small
sample sphere in the Multi/Sub-Object Basic
Parameters rollout.
The small sample sphere is surrounded
by a black and white border to show the
sub-material is selected.
If the list of sub-materials is longer than the
rollout will hold, you can use the scroll bar at
the right to display other parts of the list.
2. Click Delete.
The sub-material is removed.
Deleting a sub-material is an undoable
operation.
Interfa ce
Number —This field displays the number of
sub-materials contained in the multi/sub-object
material.
Set Number—Sets the number of sub-materials
make up the material. At the multi/sub-object
materiallevel,thesampleslot’ssampleobject
shows a patchwork of the sub-materials. (When
you edit a sub-material, the sample slot display
depends on the setting of the Simple Multi Display