2009

NOTE All animations within an incoming XRef object or scene is preserved within
an
XRef controller on page 3269. You cannot edit them unless you merge the XRef
object or XRef controller into your master scene.
If a layer name from the merged or XRef scene matches one from the master
scene, both layers become synchronized ; that is, the weight track is instanced
to both of them.
Collapsing Layers
Collapsing a layer merges keys if any of these conditions are met:
■ the two controllers are of similar types (Bezier, Float, TCB, etc.).
■ they have the same tangent type.
■ the Blend Euler As Quat option of the
Layer Controller dialog on page 3162
is turned off.
However, many factors can cause a collapse per frame (that is, setting a key
on every frame):
■ If one controller type is TCB (Quaternion) and the other is Bezier (Euler).
■ If the Blend Euler As Quat option of the
Layer Controller dialog on page
3162 is turned on, and both rotation controllers are Euler-driven.
■ If the Blend Euler As Quat option of the Layer controller is turned off, and
both rotation controllers are Euler-driven, but both have different tangent
types.
■ If either controller is non-keyable.
Procedures: Integrating Animation Layers in a Worklow
The following sequence of procedures illustrate how you can use animation
layers in your workflow to quickly create and combine different animation
tracks together for the same object. You should be familiar with the basics of
animation and key creation before going through the following steps.
Example: To enable layers:
1 Create a teapot, and then turn on Auto Key and set position keys on the
X axis at frames 0, 15, and 30.
3170 | Chapter 15 Animation