DD::Image::ViewFrustum Class Reference

List of all members.

Public Member Functions
	ViewFrustum ()
	default constructor
	ViewFrustum (const CameraOp &camera)
	constructor by camera
void	update (const CameraOp &camera)
	update frustum plane in world coordinate according to camera data
void	update (const CameraOp &camera, const Matrix4 &m)
	update frustum plane according to Matrix4 transformation
const Plane &	getPlane (FrustumPlane plane) const
	get a frustum plane
FrustumVisibility	getVisibility (const PointList *plist) const
	test if a list of coplanar vertex are visible
FrustumVisibility	getVisibility (const Vector3 *points, const Primitive *prim, unsigned face) const
	test if a face store in a primitive is visible

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Detailed Description

View Frustum class. Define the camera view frustum with a list of planes. A plane is defined in world coordinate. It used to understand if a polygon is visible.

ViewFrustum

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Member Function Documentation

void ViewFrustum::update

(

const CameraOp &

camera

)

update frustum plane in world coordinate according to camera data

update frustum plane according to camera data

References DD::Image::AxisOp::matrix().

FrustumVisibility ViewFrustum::getVisibility

(

const PointList *

plist

)

const

test if a list of coplanar vertex are visible

test if a list of coplanar vertex are visible

References DD::Image::Plane::distance().

Referenced by getVisibility().

FrustumVisibility ViewFrustum::getVisibility	(	const Vector3 *	points,
		const Primitive *	prim,
		unsigned	face
	)			const

test if a face store in a primitive is visible

test if a primitive is visible

References DD::Image::Primitive::face_vertices(), DD::Image::Primitive::faces(), DD::Image::Primitive::get_face_vertices(), getVisibility(), and DD::Image::Primitive::vertex().