G3D::Frustum Class Reference

Classes
class	Face

Public Member Functions
Box	boundingBox (float minObjectSpaceDepth=finf()) const
void	getPlanes (Array< Plane > &plane) const
	The planes in the frustum. More...

Public Attributes
SmallArray< Face, 6 >	faceArray
	The faces in the frustum. More...
SmallArray< Vector4, 8 >	vertexPos
	The vertices, in homogeneous space. More...

Detailed Description

See also

Projection

Member Function Documentation

boundingBox()

Box G3D::Frustum::boundingBox

(

float

minObjectSpaceDepth = finf()

)

const

Parameters

minObjectSpaceDepth

Smallest value permitted for the near plane Z - far plane Z (e.g., to force finite bounds)

getPlanes()

void G3D::Frustum::getPlanes

(

Array< Plane > &

plane

)

const

The planes in the frustum.

Member Data Documentation

faceArray

SmallArray<Face, 6> G3D::Frustum::faceArray

The faces in the frustum.

When the far plane is at infinity, there are 5 faces, otherwise there are 6. The faces are in the order N,R,L,B,T,[F].

Referenced by G3D::PointKDTree< T, PositionFunc, HashFunc, EqualsFunc >::getIntersectingMembers(), and G3D::KDTree< T, BoundsFunc, HashFunc, EqualsFunc >::getIntersectingMembers().

vertexPos

SmallArray<Vector4, 8> G3D::Frustum::vertexPos

The vertices, in homogeneous space.

The order is that of the near face, starting from the (object space) +x,+y corner and proceeding CCW from the camera's point of view; followed by the far face also in CCW order.

If w == 0, a vertex is at infinity.