While animation curves
and key information exist for an IK handle, there is no information
available for an IK joint because its position is determined by the
animation on the IK handle. To view and edit the animation information of
an IK joint, perform a bake simulation.
To create
keys for an IK joint by baking
- Select the IK joint.
- Select
Edit > Keys > Bake Simulation > .
The Bake
Simulation Options window appears.
- Set the Sample By value.
See
Edit > Keys > Bake Simulation.
- Verify that the Disable
Implicit Controls option is turned on to retain the animation
imparted by the first joint in the IK chain.
- Click the Bake button.
Maya steps through the
animation. It evaluates the scene for each time interval specified
in the Sample By field and places
a key at each time.
NoteIf you are baking
the animation of a Full Body IK system, you must ensure that the
attributes of the skeleton are keyable. To make the skeleton keyable,
select the root joint of your skeleton and open the Channel
Box. Highlight all the attributes and right-click. Select Make
Selected Keyable from the marking menu.
To bake a keyset
- Select the keyset that you want to bake.
- Select
Edit > Keys > Bake Simulation.
To create animation curves for a driven
key using Bake Channel
- Select the driven object from scene view
or the Outliner.
- In the Dope Sheet window,
select Curves > Bake Channel > .
- Select Time Slider as the range to be
processed or specify a range by clicking the Start/End option
and entering values in the Start Time and End Time fields.
- Enter a value in the Sample
By field.
The Sample
By value is based on the Time Unit setting.
It represents the frequency with which Maya analyzes the object’s
animation and generates a key. A value of 1 creates a key for and
at each time unit. High values will decrease the frequency of generated
keys, and low values increase the number of keys created.
- Click Bake.
NoteBake
Channel operates only on animation that can be evaluated explicitly.
You can not use
Bake Channel for Inverse Kinematics
systems, Dynamics, and some Expressions.
To generate animation
curves for these animation types, select
Edit > Keys > Bake Simulation.
To set Bake Simulation options
- Select the key(s) or keyset that you
want to bake.
- Select
Edit > Keys > Bake Simulation > .
The Bake
Simulation Options window appears.
- Set the bake simulation options. See
Edit > Keys > Bake Simulation.
The Bake
Simulation Options window appears.
- Do one of the following:
- Click Bake to set
the Bake Simulation options and
bake the current key(s) or keyset.
The Bake
Simulation Options window closes.
- Click Apply to set the Bake
Simulation options and bake the current key(s) or keyset.
The Bake
Simulation Options window remains open.
- Click Close to
disregard any changes made to the Bake Simulation options and
close the Bake Simulation Options window.