PhysX Force Operator

Force Variation Threshold - When on, the force applied to a particle is calculated as a cumulative force applied to all vertices of a particle shape. Thus, a non-uniform force can create a torque moment.

The standard Force operator uses particle position and speed to calculate the force applied. It does not take a particle's dimensional properties into account; a particle is considered as a point.

The PhysX Force operator can take into account particle size while dealing with non-uniform forces — forces whose value in space varies. If a particle has significant size, a force applied to one end of a particle can differ from the force applied to the other end. The difference in force can also create a torque force applied to a particle.

Example:  PhysXForce_ForceVariationThreshold.zip