8

Repositioning the Biped 783
3.
Turn off Move All Mo de.
To reposition a biped with limbs atta ched to an
Object Spa ce object (IK a tta chment):
1.
Create a dummy object and position it near the
biped’s center of mass.
2. On the main toolbar, use Select And
Link to link both the Object Space object and
the biped’s center of mass to the dummy object.
Impor tant: Make sure you link both at the same
frame.
3.
Move the dummy object to reposition
the biped.
To reposition a biped with limbs attached to world
space (I K att achment):
A biped with limbs in world space has an IK Blend
setting of 1.0 for e
ach limb, with no Object Space
object specified. For example, when you plant the
feet of a biped so its k nees will bend when you
lower its center o
f mass, or you plant the hands of a
biped doing pushups, typically you do not specify
an Object Space object.
1. Create a dummy object near the biped’s center
of mass.
2. On the main toolbar, use Select And
Link to link both the biped’s center of mass and
the biped part
with planted keys to the dummy
object.
Tip: Tobeonthesafeside,youcandouble-click
the upper limb and lin k all of the limb to the
dummy.
Impor tant: Make sure you create all links at the
same frame.
3.
Move the dummy object to reposition
the biped.
Note: Depending on the animation, at some of
attached object’s keys you might need to set IK
Blend back to 0.0.Otherwise,thelimbcanget
“stuck” in a posture.
To reposition a biped a nimated with a motion f low
scri pt:
By default, the biped’s position at the beginning of
a motion flow scr ipt is the position spec ified by the
first BIP or STP file in the script.
1. Turn on Motion Flow mode.
2. On the Motion Flow rollout, use Start P osition
X, Star t Position Y, and Start Position Z to
change the XYZ position of the biped.
3. Turn of f Motion Flow mode.
To use layers to r eposition a biped with fr eeform
animation:
UsinglayersandAutoKeywhenyoureposition
a freeform biped g ives you some editing choices,
as described below.
1. On the Layers rollout, click Create Layer.
Note: If the biped uses footstep animation, the
MoveAllModebuttonwillbecomeunavailable.
2. Turn on Auto Ke y.
3. Reposition the biped as described i n the
previous procedure, ”To reposition a freeform
animation (with no IK attachment) or a
footstep animation.”
4. Turn off Auto Ke y.
You now have these aids to animation editing:
• Lower layers show the biped’s original
position, as does the red stick figure.
•
Clicking Snap Set Key on the Layers
rollout snaps the biped to its position on the
previous layer, and sets a posit ion key. The