2009

TIP Separate Tracks are designed to be used with forward-kinematic (FK) rotations.
Using the Move tool to change the position of a biped limb with Separate Tracks
requires that you turn on Set Parents Mode. If Set Parents Mode is off, then the
limb you move is stored relative to its parent objects, and the new parent positions
are not stored. The parent objects will snap back to their originally stored location.
Turning on Set Parents Mode ensures that the position of the entire biped limb is
stored.
NOTE Separate Tracks are intended to be used as a preference. It is better to turn
them on once for the tracks you plan to edit by hand. Turning off Separate Tracks
that are currently on causes a key to be stored for every biped object in the limb
for the frames where any biped keys previously existed.
Procedures
Example: Use separate finger tracks to create a clenching fist:
1 Create a biped with five fingers that have three joints apiece.
2
Turn on Set Parents Mode.
3 Turn on Separate FK Tracks for Arms.
4 Select the right hand and set a free key at frame 0.
5 Go to frame 30, move the hand up and forward, and then set a planted
key.
6 Go to frame 40, set a free key (this will have IK on by default), select the
pivot at the base of the hand (only hand pivots are present, not finger
pivots), and reset the key.
7 The hand should now move up and then rotate at its base.
8 Select a finger. So far, it has no keys.
9 Animate each finger individually, so they curl up one at a time.
4382 | Chapter 17 character studio