3D Graphics Programming with QuickDraw 3D 1.5.4

Rays

QuickDraw 3D defines a ray as a point of origin and a direction. A ray is defined by the TQ3Ray3D data type. Figure 18 shows a ray.

Figure 18 A ray



 
typedef struct TQ3Ray3D {

    TQ3Point3D                          origin;

    TQ3Vector3D                         direction;

} TQ3Ray3D;