8

462 Chapter 7: Creating Copies and Arrays
Inter face
Object group
Co py—Places a copy of the selected object at the
specifie d position.
Instance—Places an instance of the selected object
at the specified position.
Reference—Places a reference of the selected object
at the specified position.
Controller group
Lets you choose to copy or instance the
transform
controllers (page 3–1003)
of the original object’s
childobjects.Thisoptionisavailableonlywhen
the selection you are cloning includes two or more
hierarchically linked objects (page 3–1045) .
When cloning non-linked objects, transform
controllers are simply copied. Also, w hen cloning
linked objects, the highest-level cloned object’s
transform controller is simply copied. This option
applies only to the transform controllers of objects
at levels below the top of the cloned hierarchy.
Co py—Copies the cloned objects’ transform
controllers.
Instance—Instances the cloned objects’ transform
controllers
below the top level of the cloned
hierarchy. With instanced transform controllers,
you can change the transform animation of one
setoflinkedchildren,andautomaticallyhavethe
change affect any cloned sets.
This allows you to animate all clones ident ically
w ith a sing le animation setup. For example,
consider a scene containing three objects named
Torso, Thigh, and C alf. The objects are linked
hierarchically so that Torso is the parent of
Thigh and Thig h is the parent of Ca lf. S ay you
select all three objects and then clone them, and
choose Clone Options > Controller > Instance.
Thereafter, if you transform either Thigh or Ca lf
object, the corresponding object in the other
hierarchy is transformed identically, along with
any child objects. However, if you transform either
Torso object, the other hierarchy is not affected.
Number of Copies—Specifies the number of copies
of the object you want to create. Available only
when you SHIFT+Clone an object.
Using SHIFT+Clone to generate multiple copies
applies the transform successively to each
additional copy. If you SHIFT+Mov e an object
andspecifytwocopies,thesecondcopyisoffset
fromthefirstcopybythesamedistancethatthe
first copy is offset from the original. For Rotate,
two copies of the rotated object are created, with
the second copy rotated twice as far as the first. For
Scale, two copies of the scaled object are created,
w ith the second copy scaled from the first copy by
thesamepercentagethatthefirstcopywasscaled
from the original.
Name—Displaysthenameoftheclonedobject.
You can use this field to change the name;
additional copies use the same name followed by a
two-digit number, starting at 01 and incrementing
by one for each copy. So, for instance, if you
SHIFT+Move an object and then specify the name
bui l di n g and two copies, the first copy will be