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296 Chapter 12: Animation
You can also click Add Keys in Track View to create
new Barycentric Morph keys. The added keys
contain interpolated values for all targets.
M otion Panel Comma nds
Trajectories
Select an object > Motion panel > Trajectories
Scooter following a trajectory
The Trajectories rollout displays the path an object
travels over time. Controls to convert splines
into trajectories, t r ajectories into splines, and to
collapse any transform controller into editable
keys are also available by choosing Motion panel
>Trajectories.
Note: The state of the Trajector y check box under
Display in the
Object Prop ert ies dialog (page
1–111)
(and on the Display panel > Display
Properties rollout) controls whether trajectories
will be visible for an object.
Using trajectories, you can do the following:
• Insert and delete keys from the path.
• Move, rotate, and scale keys on the path.
• Convert the path to a spline object.
• Derive a new path from a spline object.
•Collapsetransforms.
Values under Sample Range are used in the Spline
Conversion and Collapse Transform functions.
Procedures
To display an object’s trajectory:
1.
Select an animated object that moves over time.
2. Right-click the object and cho ose Properties.
Trajectory is not available.
3. In the Display Properties group, click By Layer
to change this button to By O bject. Skip this
step if By Object is already displayed.
Trajector y becom es available.
4. Tu r n on Traje c tor y, the n click O K.
The Trajectory is displayed as a red line with
white squares and dots. The white squares are
keys, the white dots are in-betweens.
To add a key to a trajectory :
1.
Select an object.
2. Display the trajectory by following the previous
steps.
3. In the Motion panel, click Trajectories.
4. Click Sub-Object to activate Keys and enable
editing.
5. Click Add Key.
The button highlights.
6. Click the t rajector y.
Wherever you click the trajectory a key wil l b e
added.
7. Right-clickthekeyandselectKeyInfofromthe
right-click menu.
IntheKeyInfodialog,youcanchangetheIn
and Out values for the in-betweens on either