9

778 Chapter 8: Modifiers
Projection Holder group
Proj ection Hol der name fi eld—Shows the name
of the Projection Holder modifier. If you edit
thisfield,thechangeisreflectedinthetarget
object’s stack, but not until you click Project on
the Projection rollout.
Cr e ate Ne w H o l d e r—When you click the Project
button in the Project rollout, a Projection Holder
modifier is added to the geometry selection. When
Create New Holder is on, 3ds Max creates and adds
a new modifier each time you click Project. When
Create New Holder is off, clicking Project simply
updates the data in the existing Projection Holder;
it c reates a new Projection Holder modifier only if
none was present, before. Default=off.
Same Topology—When on, the source object’s
topology is transferred to the target object.
Default=off.
Impor tant: You need to turn on Same Topology when
you project to the target object’s Vertex Position.
Always Update—
When on, chang ing the object
with the Projection modifier automatically
re-projects and updates the Projection Holder
modifiers on t he geometry selections. When off,
projection is recalculated only when you click
Project. Default=off.
ThistoggleisavailableonlywhenCreateNew
Holder is off and Same Topology is on.
When Always Update is on, changes to the
geometry with the Projection modifier c an
manipulate UVW channels or animate vertex
colors of the objects with the Projection Holder
modifiers.
Source Channel group
•
Ma p Channel—(The default.) Projects a map
channel (page 3–966) va lue.
Usethespinnertosetthechannelvalue.
•
Vertex Color—Projects vertex color values.
•
Vertex Illum—Projects vertex illumination
(grayscale) values.
•
Vertex Alpha—Projects vertex alpha values.
•
Vertex Position—Projects vertex posit ions.
Target Channel group
Same as Source—When on, the radio buttons in
this group are disabled, and the Project Mapping
projector projects to the same channel that is
chosen in the Source Channel group. When
off, the radio buttons in this group are enabled.
Default=on.
Theradiobuttonsarethesameastheonesinthe
Source Channel group. When Same As Source is
off, the chosen map channel or vertex data of the
target geometry derives its value from the channel
or ver tex data chosen in the Source Channel group.
The projection does not take place until you click
Project or Project All on the Projection rollout.
Project M ater ial IDs—When on, projects material
ID values. Default=off.
The projection does not take place until you click
Project or Project All on the Projection rollout.
Pr ojection H older M odif ier
Select an object. > Modify panel > Modifier List >
Object-Space Modifiers > Projection modifier > Geometry
rollout > Choose target geometry > Projection rollout >
Click Add. > Click Projec t. > Projection Holder is applied
to the target geometry.
The Projection Holder modifier appears for objects
being used by the Projection modifier’s Project
Mapping feature (page 1–776).Itcontainsthe
data generated by the Project Mapping operation,
much as UVW Mapping Add or UVW Mapping
Clear do for Channel Info manipulat ions.