9.0

178 RIGID BODIES
DYNAMICS
DYNAMICS
RIGID BODIES 179
Using the parameters on this tab you can enable or disable collision detection for
the rigid body as well as adjust its collision properties such as the elasticity of the
collision, that is how much energy is lost during the collision, a perfectly elastic (100%)
collision will lose no energy.
Simulating a strike using
keyframes would be a tiresome
exercise. With collision detection,
Dynamics will calculate these
complex collisions for you.
When animating using collision detection it is vital that none of your objects with
collision detection enabled are penetrating each other at the start of the animation,
or collision detection will fail. The Console will aid you here by displaying an error
message if bodies are inside each other. To open the Console, select Window >
Console from the main menu.
Also, check that the surface normals of the colliding objects are facing each other.
If they are not, collision detection will be unable to nd a suitable solution and will
also fail.
The surface normals of colliding
objects must be facing each
other for collision detection
to function correctly. Here,
the surface normals of two
bodies are facing each other as
required.