Rigid Bodies Make the World Go Round
Introduction to reactor
The Basics of Simulation
Getting Collective
If
you have a valid rigid body and want to use it in a simulation,
you need to add it to a rigid body collection. At the
start of the simulation, reactor examines the scene for all enabled
rigid body collections. It then takes the rigid bodies from the
collections and adds them to the simulation. In this example, you
will create a collection and add the sphere and box to it in order
to add them to the simulation.
Continue using your scene from the previous
lesson, or open reactor_intro_1.max from \tutorials\reactor\introduction.
Create
and add objects to a rigid body collection:
- Make
sure no objects are selected, and then, on the reactor toolbar,
click Create Rigid Body Collection
.A Rigid
Body (RB) Collection is a helper object that reactor uses to keep
track of the rigid bodies in your scene. It doesn't show up in renderings,
and its position has no effect on your scene.
- Click
any viewport to add the collection to your scene.
NoteThe icon's position has no effect on the
simulation.
- On
the Modify panel, in the RB Collection Properties rollout, click
Pick, and then select the box in a viewport.
This adds
the box to the rigid body collection.
You can
also add objects to the collection with the Add button, as in the
following step.
- Click
Add. This opens a standard selection dialog that contains a list
of the remaining available rigid bodies in the scene.
TipTo remove a rigid body from the collection,
highlight it in the Rigid Bodies list and then click Delete.
- From
the list, choose the sphere, and then click Select to close the
dialog and add the sphere to the collection.
TipA useful shortcut for creating an RB Collection
is to select the objects
before
you create the
collection. If you select several objects and click Create Rigid Body
Collection, an RB Collection is created which already contains the selected
objects.