9

Rag Doll Constraint 739
This constraint is more intuitive to use if the
child and parent bodies are attached correctly.
For example, if connecting an upper arm to a
shoulder, the shoulder should be the parent and
the upper arm the child.
3. If you do not want to assign a parent to the
constraint, turn off the Parent check box.
4. If the constraint is two bodied, repeat Step
2, using the Parent pick button to set the
parent body for the constraint. By default, the
constraint space in the parent’s local space is
also aligned w ith t he child b ody.
To create th e co ns traint and attach o bjects in a si ng le
step:
•SeetheScripts (page 2–817) topic.
To change the R ag Doll positions and orientations
for the bodies:
1.
With the Rag Doll selected, open the Modify
panel.
2. In the modifier stack open the sub -object list.
3. A ccess the sub-object level corresponding to
the object whose constraint representation is
to be altered: Parent Space or Child Space.
If the rag doll is single-bodied, Parent Space
represents the world attachment position and
rota tion of the rag doll’s axes.
4. The space, represented by just the twist axis for
the child and by the twist axis, plane normal
and limit visualization for the parent, becomes
active in the viewport and can be moved
and rotated using the Move and Rotate tools
respectively. The space m aintains its position
and rotation relative to its corresponding
object. For example, if you move or rotate the
child, Child Space moves relative to it.
5. To r e s e t t h e s p a c e f or a n o bjec t t o i t s d e f ault,
reattach the object to the rag doll or use the
Align To Child Body button.
6. You can also rotate the plane normal
independent of the twist axis. To do this, set the
sub-object level to Plane Rotation and you will
be able to rotate the plane normal with respect
to the parent’s tw ist axis.
To change the Cone and Pla ne limits:
1.
Ensure that you c an see the limit v isua lization
for the Rag Doll; this helps you to choose
appropriate limits for your desired behavior.
V isual representation of the limits is displayed
at the location of the parent’s sub-object. This
provides you with a gr aphical representation
of the limited area of movement for the child
relative to the parent.
2. With the rag doll selected, open the Prop erties
rollout.
Note: Yo u c a n u s e t h i s r o l l o u t t o s p e c i f y h o w t h e
limitsarerepresentedinthevisualization,as
well as changing the limits.