A hit result from a BaseRaycaster.
| depth | The relative depth of the element. | 
| distance | Distance to the hit. | 
| gameObject | The GameObject that was hit by the raycast. | 
| index | Hit index. | 
| isValid | Is there an associated module and a hit GameObject. | 
| module | BaseInputModule that raised the hit. | 
| screenPosition | The screen position from which the raycast was generated. | 
| sortingLayer | The SortingLayer of the hit object. | 
| sortingOrder | The SortingOrder for the hit object. | 
| worldNormal | The normal at the hit location of the raycast. | 
| worldPosition | The world position of the where the raycast has hit. | 
| Clear | Reset the result. |