PhysX Shape Operator

Static Friction - The force that resists motion between two non-moving surfaces (particles and the ground or other particles).

Note: The settings of Bounce and Friction group determine how particles interact with other elements in the simulation (other particles, deflectors, the ground), so are meaningless in isolation. To determine the actual value for an interaction, the software takes the average of the properties of the interacting elements.

Example:  PhysXShape_StaticFriction.zip