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Rigid Body Collection 723
open the Rigid Body Properties dialog. You
can give this object a Mass value and, if you
wish, change its Simulation Geometry setting.
Specifying any other rigid body properties for a
child object has no effect unless you remove the
object from the group.
R igi d B od y Collecti on
Create panel > Helpers > reactor > RBCollection
Menubar>reactor>CreateObject>RigidBody
Collection
reactor toolbar > create Rig id Body Collection button
The Rigid Body Collection is a reactor helper
object that acts as a container for rigid bodies.
Once you have added a Rigid Body Collection to
your scene, you can add a ny valid r igid b odies in
the scene to the collection. You can find out more
about rigid bodies in the Rigid Body Basics (page
2–717) section.
When you run the simulation, reactor examines
the Rigid Body Collec tions in the scene and,
providedthecollectionsarenotdisabled,addsthe
rigid bodies they contain to the simulation.
At a low er level, a collection also allows you to
choose the mathemat ical method to be used for
solv ing the rigid body behaviors for its member
bodies.
Pr ocedur es
To create and use a R igid B ody Collection:
1.
Choose any of the above commands, and then
clickinanyviewporttoaddtheRigidBody
Collection.
Note: The icon’s position has no effect on the
collection’s behavior.
The collection icon is added to the scene. You
can add r igid bo dies to t he collection in two
ways: by picking or by using a selection list.
2. Add objects to the collection using either (or
both) of these methods:
• On the RB Collection Properties rollout,
click the Pick button, and then in the
view por t click an object to add.
• On the RB Collection Properties rollout,
click the Add button, and then u se the Select
Rigid Bodies dialog to specify one or more
objects to add.
To create a collection and add bodies in a single step:
1.
Create and select the object(s) to add to the
collection.
2. Create the collect ion using the reactor toolbar,
reactor menu, or quad menu. reactor instantly
placesthecollectioninthesceneandaddsthe
selected objects to the collection.
Interfa ce
RB Collection Proper ties rollout
Highlight—Cause the objects in the Rigid Bodies
list to display momentarily in the viewports as if
selected.