osg::ShadowVolumeOccluder Class Reference

#include <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.

Member Typedef Documentation

HoleList

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

Constructor & Destructor Documentation

ShadowVolumeOccluder() [1/2]

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

inline

References _holeList, _nodePath, _occluderVolume, _projectionMatrix, _volume, and ShadowVolumeOccluder().

Referenced by operator<(), and ShadowVolumeOccluder().

ShadowVolumeOccluder() [2/2]

osg::ShadowVolumeOccluder::ShadowVolumeOccluder ( )

inline

References _volume.

Member Function Documentation

computeOccluder()

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

compute the shadow volume occluder.

References disableResultMasks(), popCurrentMask(), and pushCurrentMask().

contains() [1/3]

bool osg::ShadowVolumeOccluder::contains

(

const BoundingBox &

bound

)

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

contains() [2/3]

bool osg::ShadowVolumeOccluder::contains

(

const BoundingSphere &

bound

)

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

contains() [3/3]

bool osg::ShadowVolumeOccluder::contains

(

const std::vector< Vec3 > &

vertices

)

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

disableResultMasks()

void osg::ShadowVolumeOccluder::disableResultMasks ( )

inline

References _holeList, and _occluderVolume.

Referenced by computeOccluder().

getHoleList() [1/2]

HoleList & osg::ShadowVolumeOccluder::getHoleList ( )

inline

return the list of holes.

References _holeList.

getHoleList() [2/2]

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

inline

return the const list of holes.

References _holeList.

getNodePath() [1/2]

NodePath & osg::ShadowVolumeOccluder::getNodePath ( )

inline

References _nodePath.

getNodePath() [2/2]

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

inline

References _nodePath.

getOccluder() [1/2]

Polytope & osg::ShadowVolumeOccluder::getOccluder ( )

inline

return the occluder polytope.

References _occluderVolume.

getOccluder() [2/2]

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

inline

return the const occluder polytope.

References _occluderVolume.

getVolume()

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.

References _volume.

Referenced by operator<().

matchProjectionMatrix()

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.

References _projectionMatrix.

operator<()

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

inline

References getVolume(), and ShadowVolumeOccluder().

popCurrentMask()

void osg::ShadowVolumeOccluder::popCurrentMask ( )

inline

References _holeList, and _occluderVolume.

Referenced by computeOccluder().

pushCurrentMask()

void osg::ShadowVolumeOccluder::pushCurrentMask ( )

inline

References _holeList, and _occluderVolume.

Referenced by computeOccluder().

setNodePath()

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

inline

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

References _nodePath.

transformProvidingInverse()

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

inline

References _holeList, and _occluderVolume.

Member Data Documentation

_holeList

HoleList osg::ShadowVolumeOccluder::_holeList

protected

Referenced by disableResultMasks(), getHoleList(), getHoleList(), popCurrentMask(), pushCurrentMask(), ShadowVolumeOccluder(), and transformProvidingInverse().

_nodePath

NodePath osg::ShadowVolumeOccluder::_nodePath

protected

Referenced by getNodePath(), getNodePath(), setNodePath(), and ShadowVolumeOccluder().

_occluderVolume

Polytope osg::ShadowVolumeOccluder::_occluderVolume

protected

Referenced by disableResultMasks(), getOccluder(), getOccluder(), popCurrentMask(), pushCurrentMask(), ShadowVolumeOccluder(), and transformProvidingInverse().

_projectionMatrix

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

protected

Referenced by matchProjectionMatrix(), and ShadowVolumeOccluder().

_volume

float osg::ShadowVolumeOccluder::_volume

protected

Referenced by getVolume(), ShadowVolumeOccluder(), and ShadowVolumeOccluder().

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

• ShadowVolumeOccluder