BoundingBox Class Reference

Inherits ScriptObject.

Public Member Functions
	BoundingBox ()
	BoundingBox (Vector a, Vector b)
	expandTo (Vector point)
	expandToBox (BoundingBox box)
VectorPair	getRayIntersection (Vector origin, Vector direction, Vector expansion=Vector())

Public Attributes
Vector	lower
Vector	upper

Detailed Description

3D bounding box specified by the lower and upper corners.

Constructor & Destructor Documentation

BoundingBox() [1/2]

BoundingBox

(

)

Initializes the bounding box and (0, 0, 0) -> (0, 0, 0).

BoundingBox() [2/2]

BoundingBox	(	Vector	a,
		Vector	b
	)

Initializes the bounding box for the specified corners.

Parameters

a	Corner of box.
b	Corner of box.

Member Function Documentation

expandTo()

expandTo

(

Vector

point

)

Expands the bounding box to include the specified position.

expandToBox()

expandToBox

(

BoundingBox

box

)

Expands the bounding box to include the specified bounding box.

getRayIntersection()

VectorPair getRayIntersection	(	Vector	origin,
		Vector	direction,
		Vector	expansion = Vector()
	)

Gets intersection between the bounding box and a ray.

Parameters

origin	Origin point of the ray.
direction	Direction vector of the ray. Should be non-zero.
expansion	Additional thickness added to the bounding box. Should be non-negative.

Returns

Pair of intersection points. First intersection point is where the ray enters the bounding box. Second point, where the ray exits from the bounding. If ray's origin is inside the bounding box, first point is equal to second. Returns null, if the ray does not intersect the bounding box.

Since

r45500

Member Data Documentation

lower

Vector lower

The lower corner.

upper

Vector upper

The upper corner.