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786 Chapter 14: Character Studio
5.
Find a frame where the biped needs adjustment,
and modify or add keys.
Trajectory D isplay
When a biped is animated, you can view its motion
not only using Biped Playback, but you can also
see the path, or trajectory, the biped (or selected
biped links) follows throughout the motion.
Display of the trajector y of a biped’s lowe r spine
You turn on trajectory display by clicking
Trajectories in either of these user-interface
locations:
•Motionpanel>Bipedrollout>ExpandBiped
rollout. > Display group > Trajectories button
• Motion panel > Key Info rollout > Trajectories
button
Tip: Do not use 3ds Max trajectory controls to
display or edit biped trajectories. These include
the options accessed with Object Properties >
Display Properties > Trajectory on the quad menu,
and those under Motion panel > Trajectories text
button.
Trajectories provide useful visual feedback as you
edit keys, show ing the effects on the motion path
for the parameters you’re adjusting. You also can
usetrajectorydisplaytocomparefilteredand
unfiltered mot ion capture data.
Changes to Tension, Continuity, Bias, Dynamics
Blend, Ballistic Tension, and the overall gravity
setting GravAccel are reflected in the trajectories.
Note: Trajectories do not display while you play an
animation using In Place mode.
You can customize the trajectory information
for the selected biped link by using the
Display
Preferences dialog (page 2–799)
.Youcanchoose
between Bone Base and Bone Tip, show an entire
trajectory, or a moving range of frames.
Procedure
To edi t biped tr a jector y k ey s in a vi ewpor t:
1.
Select an animated biped and go to the
Motion panel.
2. On the Track Selection rollout, turn
on Body Horizontal or Body Vertical.
3. At the bottom of the Biped
rollout, click the bar by t he plus sign to expand
the rollout.
(If the rollout is already expanded, the bar
showsaminussignattheleft,insteadofaplus.)
4. In the Display group, turn on Trajectories.
5. Turn on Sub-Object selection level.
6. Onthemaintoolbar,turnonSelectAnd
Move.
7. Use t he Tr ansform gizmo to move the keys on
the trajectory.
Display Preferences
The Display Preferences dialog (page 2–799) lets
yo u customize how bipeds are displayed while you
work with them. This topic int roduces some of the
commonly used options.