CC3NodeNullBoundingVolume Class Reference
Inherits from | CC3NodeBoundingVolume : CC3BoundingVolume : NSObject |
Declared in | CC3BoundingVolumes.h |
Overview
A bounding volume that forms a volume of zero size and location. When applied to a node, this volume will never intersect any other bounding volumes, and will never be considered inside the camera’s frustum.
Properties
shouldDraw
Indicates that this bounding volume should draw itself over the node.
@property (nonatomic, assign) BOOL shouldDraw
Discussion
The null bounding volume will never be drawn. This property will always return NO, and setting this property will have no effect.
Declared In
CC3BoundingVolumes.h
Instance Methods
doesIntersect:
Returns whether this bounding volume intersects the specfied other bounding volume.
- (BOOL)doesIntersect:(CC3BoundingVolume *)aBoundingVolume
Discussion
This implementation always returns NO.
Declared In
CC3BoundingVolumes.h
doesIntersectConvexHullOf:planes:from:
Returns whether a convex hull composed of the specified global planes intersects this bounding volume. The planes may be the face planes of a mesh, or they may be the sides of an oriented bounding box (OBB), or frustum, etc.
- (BOOL)doesIntersectConvexHullOf:(GLuint)numOtherPlanes planes:(CC3Plane *)otherPlanes from:(CC3BoundingVolume *)otherBoundingVolume
Discussion
This implementation always returns NO.
Declared In
CC3BoundingVolumes.h
doesIntersectLocation:
Returns whether the specified global location intersects (is inside) this bounding volume.
- (BOOL)doesIntersectLocation:(CC3Vector)aLocation
Discussion
This implementation always returns NO.
Declared In
CC3BoundingVolumes.h
doesIntersectRay:
Returns whether the specified global-coordinate ray intersects this bounding volume.
- (BOOL)doesIntersectRay:(CC3Ray)aRay
Discussion
This implementation always returns NO.
The shouldIgnoreRayIntersection property has no effect on this implementation.
Declared In
CC3BoundingVolumes.h