9

958 Chapter 14: character studio
TCB group
You can use the TCB controls to adjust easing and
trajectories on keys that a lready exist.
XYZ Position—Reposition the selected biped part
using these spinners.
A hand or foot can be repositioned in world
coordinate XYZ. The biped center of mass can also
be positioned using these spinners.
TCB Gr a ph—Charts the effect that changing t he
controller properties will have on the animation.
Theredmarkatthetopofthecurverepresentsthe
key.Themarkstotheleftandrightofthecurve
represent an even division of time to either side
of the key.
The TCB graph is a st y lized representation of the
animation around a single key.
Ease To—Slows the velocity of the animation curve
as it approaches the key. Default=0.
High Ease To ca uses the animation to decelerate
as it appro aches the key.
The default setting causes no extra deceleration.
Ease From—Slows the velocity of the animation
curve as it leaves the key. Default=0.
High Ease From causes the animation to start slow
and accelerate as it leaves the key.
The default setting causes no change of the
animation curve.
Tens ion—Controls the amount of c urvature in the
animation curve.
High Tension produces a linear curve. It also has a
slight Ease To and Ease From effect.
Low Tension produces a very wide, rounded,
curve. It also has a slight negative Ease To and
Ease From effect.
The default value of 25 produces an even amount
of curvature through the key.
Co ntinuity—Controls the tangential property of
the curve at the key. The default setting is the
only value that produces a smooth animation
curve through the key. All other values produce a
discontinuity in the animation curve causing an
abrupt change in the animation. Default=25.
High Continuity values create curved overshoot
on both sides of the key.
Low Continuity values create a linear animation
cur ve. Low continuity creates a linear curve
similar to high tension except without the Ease To
andEaseFromsideeffect.
The default setting creates a smooth continuous
curve at the key.
Bias—Controls w here the animation curve occurs
w ith respect to the key. Default=25.
High Bias pushes the curve beyond the key. This
produces a linear curve coming into the key and
an exaggerated curve leaving the key.
Low Bias pulls the curve before the key. This
produces an exaggerated curve coming into the
key and a linear curve leaving the key .