3D Graphics Programming with QuickDraw 3D 1.5.4

Hit List Sorting Values

You specify a hit list sorting value to determine the kind of sorting (relative to the pick origin) that is to be done on the hit list.



 
typedef enum TQ3PickSort {

    kQ3PickSortNone,

    kQ3PickSortNearToFar,

    kQ3PickSortFarToNear

} TQ3PickSort;

Constant descriptions

kQ3PickSortNone: No sorting is to be done on the hit list. There is no meaning to the order of hits in the list.
kQ3PickSortNearToFar: The hit list is sorted according to increasing distance from the origin of the pick point. Objects nearer to the origin are returned before objects farther away.
kQ3PickSortFarToNear: The hit list is sorted according to decreasing distance from the origin of the pick point. Objects farther away from the origin are returned before objects nearer to it.