9.0

178 RIGID BODIES
DYNAMICS
DYNAMICS
RIGID BODIES 179
Calc. Mass Center
If you click this button, the centre of mass will be calculated based on the points of
the rigid body.
Include Children
If the rigid body has children, you will usually want the children to move along with
the rigid body without having to create a Rigid Body Dynamic tag for each child. If
you enable this option, the Mass Center will be calculated for the entire hierarchy.
A sphere with three other
spheres as children. With the
Include Children option enabled,
the entire hierarchy will fall
downwards when the parent
sphere enters the gravity eld.
Collision Tab
Collision detection is one of the
major features of Dynamics.
However, many types of
collisions can be simulated using
force elds instead, which can
be much faster to compute!
Collision detection — one of the main features of Dynamics — prevents colliding
bodies from penetrating each other. Instead the bodies will be made to bounce off
each other or slide along each other, just as if they were real solid objects.