osg::ShadowVolumeOccluder Class Reference

#include <ShadowVolumeOccluder.h>

Collaboration diagram for osg::ShadowVolumeOccluder:

Public Types
typedef std::vector< Polytope >	HoleList

Public Member Functions
	ShadowVolumeOccluder (const ShadowVolumeOccluder &svo)
	ShadowVolumeOccluder ()
bool	operator< (const ShadowVolumeOccluder &svo) const
bool	computeOccluder (const NodePath &nodePath, const ConvexPlanarOccluder &occluder, CullStack &cullStack, bool createDrawables=false)
void	disableResultMasks ()
void	pushCurrentMask ()
void	popCurrentMask ()
bool	matchProjectionMatrix (const osg::Matrix &matrix) const
void	setNodePath (NodePath &nodePath)
NodePath &	getNodePath ()
const NodePath &	getNodePath () const
float	getVolume () const
Polytope &	getOccluder ()
const Polytope &	getOccluder () const
HoleList &	getHoleList ()
const HoleList &	getHoleList () const
bool	contains (const std::vector< Vec3 > &vertices)
bool	contains (const BoundingSphere &bound)
bool	contains (const BoundingBox &bound)
void	transformProvidingInverse (const osg::Matrix &matrix)

Protected Attributes
float	_volume
NodePath	_nodePath
ref_ptr< const RefMatrix >	_projectionMatrix
Polytope	_occluderVolume
HoleList	_holeList

Detailed Description

ShadowVolumeOccluder is a helper class for implementing shadow occlusion culling.

Definition at line 26 of file ShadowVolumeOccluder.h.

Member Typedef Documentation

typedef std::vector<Polytope> osg::ShadowVolumeOccluder::HoleList

Definition at line 32 of file ShadowVolumeOccluder.h.

Constructor & Destructor Documentation

osg::ShadowVolumeOccluder::ShadowVolumeOccluder ( const ShadowVolumeOccluder &  svo )

inline

Definition at line 34 of file ShadowVolumeOccluder.h.

osg::ShadowVolumeOccluder::ShadowVolumeOccluder ( )

inline

Definition at line 41 of file ShadowVolumeOccluder.h.

Member Function Documentation

bool osg::ShadowVolumeOccluder::computeOccluder	(	const NodePath &	nodePath,
		const ConvexPlanarOccluder &	occluder,
		CullStack &	cullStack,
		bool	createDrawables = false
	)

compute the shadow volume occluder.

bool osg::ShadowVolumeOccluder::contains

(

const std::vector< Vec3 > &

vertices

)

return true if the specified vertex list is contained entirely within this shadow occluder volume.

bool osg::ShadowVolumeOccluder::contains

(

const BoundingSphere &

bound

)

return true if the specified bounding sphere is contained entirely within this shadow occluder volume.

bool osg::ShadowVolumeOccluder::contains

(

const BoundingBox &

bound

)

return true if the specified bounding box is contained entirely within this shadow occluder volume.

void osg::ShadowVolumeOccluder::disableResultMasks ( )

inline

Definition at line 128 of file ShadowVolumeOccluder.h.

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HoleList& osg::ShadowVolumeOccluder::getHoleList ( )

inline

return the list of holes.

Definition at line 84 of file ShadowVolumeOccluder.h.

const HoleList& osg::ShadowVolumeOccluder::getHoleList ( ) const

inline

return the const list of holes.

Definition at line 87 of file ShadowVolumeOccluder.h.

NodePath& osg::ShadowVolumeOccluder::getNodePath ( )

inline

Definition at line 69 of file ShadowVolumeOccluder.h.

const NodePath& osg::ShadowVolumeOccluder::getNodePath ( ) const

inline

Definition at line 70 of file ShadowVolumeOccluder.h.

Polytope& osg::ShadowVolumeOccluder::getOccluder ( )

inline

return the occluder polytope.

Definition at line 78 of file ShadowVolumeOccluder.h.

const Polytope& osg::ShadowVolumeOccluder::getOccluder ( ) const

inline

return the const occluder polytope.

Definition at line 81 of file ShadowVolumeOccluder.h.

float osg::ShadowVolumeOccluder::getVolume ( ) const

inline

get the volume of the occluder minus its holes, in eye coords, the volume is normalized by dividing by the volume of the view frustum in eye coords.

Definition at line 75 of file ShadowVolumeOccluder.h.

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bool osg::ShadowVolumeOccluder::matchProjectionMatrix ( const osg::Matrix &  matrix ) const

inline

return true if the matrix passed in matches the projection matrix that this ShadowVolumeOccluder is associated with.

Definition at line 59 of file ShadowVolumeOccluder.h.

bool osg::ShadowVolumeOccluder::operator< ( const ShadowVolumeOccluder &  svo ) const

inline

Definition at line 45 of file ShadowVolumeOccluder.h.

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void osg::ShadowVolumeOccluder::popCurrentMask ( )

inline

Definition at line 155 of file ShadowVolumeOccluder.h.

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void osg::ShadowVolumeOccluder::pushCurrentMask ( )

inline

Definition at line 140 of file ShadowVolumeOccluder.h.

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void osg::ShadowVolumeOccluder::setNodePath ( NodePath &  nodePath )

inline

Set the NodePath which describes which node in the scene graph that this occluder is attached to.

Definition at line 68 of file ShadowVolumeOccluder.h.

void osg::ShadowVolumeOccluder::transformProvidingInverse ( const osg::Matrix &  matrix )

inline

Definition at line 102 of file ShadowVolumeOccluder.h.

Member Data Documentation

HoleList osg::ShadowVolumeOccluder::_holeList

protected

Definition at line 120 of file ShadowVolumeOccluder.h.

NodePath osg::ShadowVolumeOccluder::_nodePath

protected

Definition at line 117 of file ShadowVolumeOccluder.h.

Polytope osg::ShadowVolumeOccluder::_occluderVolume

protected

Definition at line 119 of file ShadowVolumeOccluder.h.

ref_ptr<const RefMatrix> osg::ShadowVolumeOccluder::_projectionMatrix

protected

Definition at line 118 of file ShadowVolumeOccluder.h.

float osg::ShadowVolumeOccluder::_volume

protected

Definition at line 116 of file ShadowVolumeOccluder.h.

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The documentation for this class was generated from the following file:

• osg_head/include/osg/ShadowVolumeOccluder.h