Editing Face Expressions with Layer Keys

1. Import characters and expressions into the Content Browser by using Live Link or loading FBX files.
   
2. Create the character's blueprints by following the FBX or Live Link workflow.
   
3. Apply one of the characters' blueprints to the stage.
   
4. Follow the these steps to add the "CC_Face_Rig" track to the Sequencer.
   
5. Click the + button of the blueprint track and choose Animation > to select the desired animation.
   
6. A new track containing the animation clip will be added.
   
   If you playback now, the animation clip will not take effect because the "CC_Face_Rig" track is overriding it.
7. Right-click on the "CC_Face_Rig" track and enable Mute.
   
   Playback the project. Now the character will perform the facial expression and body movements.
   
8. Right-click on the Face main track and choose the Bake To Control Rig > CC_Face_Rig.
   
   Click the Reset to Default button and then the Create button in the Options For Baking panel.
   
   This step samples and bake the animations to the CC_Face_Rig track.
   
9. Since the CC_Face_Rig track is muted in step 6, you need to unmute the track again with the same method. This step will ensure the character's ability to perform the key-frame animation.
   
   Notice that if the animation clip is still activated, manually deactivate it (right-click menu) to ensure the facial expressions are from the sampled keys in the CC_Face_Rig track.
   
10. It is highly recommended that you open a new viewport and focus to the Face Control Rig panel.
    
11. Collapse the CC_Face_Rig track and click the + button and choose the Additive command.
    
    This step will create a new CC_Face_Rig track for layer editing.
    
12. Follow the steps in Creating Face Key-Frame Animations section for creating layer keys to edit the facial expressions.
    
13. The following table displays the comparison between the facial expressions with and without the layer keys effects.

    Without layer keys effects	With layer keys effects