Create a dynamic collision between two objects, leaving a dent on one of the objects.

Elements:
NURBS Sphere
Polygon mesh
Duplicate polygon mesh
Gravity Field

Overview:
In our first example we have a ball crashing into a moving cube. Upon impact the ball will bounce off the cube leaving a dented surface on the cube. To create this effect, we use a soft body particle system attached to a subdivided polygon mesh.
The ball is made into an active rigid body with which you can establish interaction with the particles of the soft body. Particles themselves do not act upon rigid bodies, meaning they do not affect rigid body transforms.
It only works the other way around. Rigid bodies can move particles! Because of this, we need another element, a second passive rigid body cube for the ball to bounce against. By adding some gravity and two key frames our simulation is complete. ...