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280 Chapter 12: Animation
key values, right-click the time slider to display the
Create Key dialog.
YousetparametersintheCreateKeydialog:
Sour ce Time—Specifies the time from which
transform values will be copied.
Destination Time—Specifies the time where the key
will be created.
Position, R otat ion, Scale—Determine which
transform key values wi ll be copied to the
destination time.
When you click OK, new keys for the specified
transforms are created at the destination time,
using values from the s ource time. Keys do not
have to exist at the source frame, because the
interpolated values at the f r ame are used.
You might find it easier to create and manipulate
keys with the
track bar (page 3–750) .
When Auto Key mode is on, you can right-click
and drag the t ime slider at the same time. When
you do this, the Source time uses the frame
number that you were on when you pressed the
mouse button, and t he Destination time accepts
theframenumberthatyoumovethetimesliderto.
When Set Key mode is on, you can right-click and
dragthetimeslidertomovetoanotherframein
time, without losing your character pose. If you
find you have posed your character on the wrong
frame, simply right-click and drag the time slider,
and the pose will be copied to the new frame. Click
Set keys to set keys for the pose on the new frame.
Creating Position Lock K eys and R otation
Lock K ey s
Creating a lock key creates a key with Linear
int erpolation. If you create the lock key while
an existing key is selected, it changes that key’s
interpolation from Smooth to Linear. (Different
types of interpolation are described in
Bezier
Cont rollers (page 2–305)
.)
You can create a lock key for position or for
rotation.
Lock keys are useful when you want an object to
be stationary, but smooth interpolation is causing
it to "wobble" on its stationary spot.
To create a lock key:
1.
From the Customize menu, choose Customize
User Interface.
2. On the Customize User Interface dialog, click
the Quads tab, and then, from the drop-down
list at the upper right of t he dialog, choose
Animation.
3. Clicktheupperleftquadrantofthefourgray
squares that define the quad menus.
The quad tur ns yellow.
4. In the Action list to the left, find Create Position
Lock Key. Drag it to the window on the r ig ht
below any menu item. Choose Save and click
OK to apply this and close the dialog.
5. (Optional.) Select a key.
6. ALT+rig ht-click the object you’re animating.
Note: The Auto Key button need not b e on.
7. From the quad menu that appears, choose
Create Position Lock Key .
You can also create keyboard shortcuts for
these two commands. Create Position Lock Key
and Create Rotation Lock Key are
main user
interface shortcuts (p age 3–922)
.