PhysX World Helper

Apply Gravity - Enables gravity, the most commonly used force in simulating real-world physics. The direction of the gravity force is determined by the orientation of the PhysX World helper icon. When on, an arrow appears at the center of the icon to indicate the gravity force direction.

Acceleration - The magnitude of the gravity force. The default value corresponds to the gravity force on Earth at sea level.

Note: When you add a PhysX World helper, the software determines the default Acceleration value based on the current Units Setup (Customize > Units Setup > System Unit Setup). If you change the Units Setup (Customize menu) after creating the PhysX World helper, the Acceleration value no longer corresponds to the standard gravity force.

Ground Collision Plane - Creates an invisible ground plane with which particles collide. The ground plane is not associated with any geometry; rather, the PhysX World helper's icon position and orientation define the plane. When on, a cross icon appears on one of the icon faces to specify the plane of the ground collision.

Example:  PhysXWorldHelper_ApplyGravity.zip