The Ray Properties node is added by default. Only one instance of this node can exist for each physics interface. The Ray Properties node defines the equations for ray propagation and may also include inputs for some ray properties.

This section is shown when the Allow frequency distributions at release features check box is cleared in the physics interface Ray Release and Propagation section. Otherwise the ray frequency is controlled separately by each ray release feature.

Enter a Ray frequency f (SI unit: Hz) here. The default is 1000 Hz.