2009

With weight curves, you can create several full or partial transitions between
all the tracks in a trackgroup. Compare with transitions on a
transition track
on page 8158, which can only create a full transition between two clips.
Weight curves are useful for:
■ Creating transitions between two tracks in a trackgroup.
■ Creating random motion.
■ Experimenting with transitions quickly and easily.
Each track's weight curve appears as a thin black line across the top of the
track.
TIP If you can't see the weight curve, click Preferences to display the Mixer
Preferences dialog
on page 3791. Turn Weight Curves off and on and watch the
display to see the weight curve appear.
You access the weight curve by clicking the Weight Mode button at the
right end of the track. Clicking Weight Mode on the Motion Mixer toolbar
enables weight curve editing for all tracks. When Weight mode is on, you can
work only with the weight curve, and not with clips.
You edit a weight curve using nodes (points) on the curve. Clips on layer
tracks automatically have a node at each end of each clip. A transition track
has no nodes by default.
Weight Curve Evaluation
By default, each track's weight curve is set to a value of 1.0 across the entire
track, which uses 100% of the track's motion in the mix. When you change
the curve to dip to a value below 1.0, the motion on the track is mixed with
Using the Motion Mixer | 3731