2009

Do Not Store Collisions Collision data is not stored for these pairs of objects.
> Moves the pairs that are highlighted in the Store list to the Do Not Store
list.
>> Moves all the pairs in the Store list to the Do Not Store list.
< Moves the pairs that are highlighted in the Do Not Store list to the Store
list.
<< Moves all the pairs in the Do Not Store list to the Store list.
OK Closes the dialog, saving any changes.
Cancel Closes the dialog without saving your changes.
Deformable Bodies
You can use
rigid bodies on page 3909 in reactor to model any real-world object
whose shape doesn't change over time. However, what if you want to simulate
an object whose geometry does change over the course of the simulation, such
as a cloak, hair, foam bricks, or perhaps a slithering tentacle? reactor allows
you to model these with a second category of objects, called deformable
bodies. The geometry (vertices) of deformable bodies can change over time,
driven either by reactor during the simulation or by existing animation in 3ds
Max, allowing the objects to bend, flex, and stretch while affecting and being
affected by the rest of objects in the world simulation.
IMPORTANT The Havok 3 engine does not support deformable bodies in reactor;
you can use these only with the Havok 1 engine.
In addition to creating entirely deformable objects, you can combine
deformable bodies with rigid bodies, for instance to add secondary motion to
a simulated character. Secondary motion could include swirling clothing,
wobbling flesh, or a swinging tail. Deformable objects are also useful for
environmental effects such as swinging ropes and chains, curtains, and flags
with dynamic wind.
Generally, you create a deformable body in reactor by first creating a mesh or
spline that models the object's basic shape, and then applying a special
modifier. You can then specify additional physical properties for the object.
reactor includes four main types of deformable bodies, each of which is dealt
with in its own section:
■
Cloth on page 4026, a deformable two-dimensional triangular mesh
4024 | Chapter 16 reactor