osg::CollectOccludersVisitor Class Reference

Inheritance diagram for osg::CollectOccludersVisitor:

[legend]

List of all members.

Public Types
typedef std::set < ShadowVolumeOccluder >	ShadowVolumeOccluderSet
Public Member Functions
	CollectOccludersVisitor ()
virtual	~CollectOccludersVisitor ()
virtual CollectOccludersVisitor *	cloneType () const
virtual void	reset ()
virtual float	getDistanceToEyePoint (const Vec3 &pos, bool withLODScale) const
	Get the distance from a point to the eye point, distance value in local coordinate system.
virtual float	getDistanceToViewPoint (const Vec3 &pos, bool withLODScale) const
	Get the distance from a point to the view point, distance value in local coordinate system.
virtual float	getDistanceFromEyePoint (const Vec3 &pos, bool withLODScale) const
	Get the distance of a point from the eye point, distance value in the eye coordinate system.
virtual void	apply (osg::Node &)
virtual void	apply (osg::Transform &node)
virtual void	apply (osg::Projection &node)
virtual void	apply (osg::Switch &node)
virtual void	apply (osg::LOD &node)
virtual void	apply (osg::OccluderNode &node)
void	setMinimumShadowOccluderVolume (float vol)
	Sets the minimum shadow occluder volume that an active occluder must have.
float	getMinimumShadowOccluderVolume () const
void	setMaximumNumberOfActiveOccluders (unsigned int num)
	Sets the maximum number of occluders to have active for culling purposes.
unsigned int	getMaximumNumberOfActiveOccluders () const
void	setCreateDrawablesOnOccludeNodes (bool flag)
bool	getCreateDrawablesOnOccludeNodes () const
void	setCollectedOccluderSet (const ShadowVolumeOccluderSet &svol)
ShadowVolumeOccluderSet &	getCollectedOccluderSet ()
const ShadowVolumeOccluderSet &	getCollectedOccluderSet () const
void	removeOccludedOccluders ()
	Removes occluded occluders for the collected occluders list, then discards all but MaximumNumberOfActiveOccluders of occluders, discarding the occluders with the lowests shadow occluder volume.
Protected Member Functions
CollectOccludersVisitor &	operator= (const CollectOccludersVisitor &)
	Prevents unwanted copy construction.
void	handle_cull_callbacks_and_traverse (osg::Node &node)
void	handle_cull_callbacks_and_accept (osg::Node &node, osg::Node *acceptNode)
Protected Attributes
float	_minimumShadowOccluderVolume
unsigned	_maximumNumberOfActiveOccluders
bool	_createDrawables
ShadowVolumeOccluderSet	_occluderSet

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Member Typedef Documentation

typedef std::set<ShadowVolumeOccluder> osg::CollectOccludersVisitor::ShadowVolumeOccluderSet

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Constructor & Destructor Documentation

osg::CollectOccludersVisitor::CollectOccludersVisitor

(

)

virtual osg::CollectOccludersVisitor::~CollectOccludersVisitor

(

)

[virtual]

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Member Function Documentation

virtual CollectOccludersVisitor* osg::CollectOccludersVisitor::cloneType

(

)

const [inline, virtual]

virtual void osg::CollectOccludersVisitor::reset

(

)

[virtual]

Reimplemented from osg::CullStack.

virtual float osg::CollectOccludersVisitor::getDistanceToEyePoint	(	const Vec3 &	,
		bool
	)			const [virtual]

Get the distance from a point to the eye point, distance value in local coordinate system.

Note, not all NodeVisitor implement this method, it is mainly cull visitors which will implement. If the getDistanceFromEyePoint(pos) is not implemented then a default value of 0.0 is returned.

Reimplemented from osg::NodeVisitor.

virtual float osg::CollectOccludersVisitor::getDistanceToViewPoint	(	const Vec3 &	,
		bool
	)			const [virtual]

Get the distance from a point to the view point, distance value in local coordinate system.

Note, not all NodeVisitor implement this method, it is mainly cull visitors which will implement. If the getDistanceToViewPoint(pos) is not implemented then a default value of 0.0 is returned.

Reimplemented from osg::NodeVisitor.

virtual float osg::CollectOccludersVisitor::getDistanceFromEyePoint	(	const Vec3 &	,
		bool
	)			const [virtual]

Get the distance of a point from the eye point, distance value in the eye coordinate system.

Note, not all NodeVisitor implement this method, it is mainly cull visitors which will implement. If the getDistanceFromEyePoint(pos) is not implemented than a default value of 0.0 is returned.

Reimplemented from osg::NodeVisitor.

virtual void osg::CollectOccludersVisitor::apply

(

osg::Node &

)

[virtual]

Reimplemented from osg::NodeVisitor.

virtual void osg::CollectOccludersVisitor::apply

(

osg::Transform &

node

)

[virtual]

Reimplemented from osg::NodeVisitor.

virtual void osg::CollectOccludersVisitor::apply

(

osg::Projection &

node

)

[virtual]

Reimplemented from osg::NodeVisitor.

virtual void osg::CollectOccludersVisitor::apply

(

osg::Switch &

node

)

[virtual]

Reimplemented from osg::NodeVisitor.

virtual void osg::CollectOccludersVisitor::apply

(

osg::LOD &

node

)

[virtual]

Reimplemented from osg::NodeVisitor.

virtual void osg::CollectOccludersVisitor::apply

(

osg::OccluderNode &

node

)

[virtual]

Reimplemented from osg::NodeVisitor.

void osg::CollectOccludersVisitor::setMinimumShadowOccluderVolume

(

float

vol

)

[inline]

Sets the minimum shadow occluder volume that an active occluder must have.

vol is units relative the clip space volume where 1.0 is the whole clip space.

float osg::CollectOccludersVisitor::getMinimumShadowOccluderVolume

(

)

const [inline]

void osg::CollectOccludersVisitor::setMaximumNumberOfActiveOccluders

(

unsigned int

num

)

[inline]

Sets the maximum number of occluders to have active for culling purposes.

unsigned int osg::CollectOccludersVisitor::getMaximumNumberOfActiveOccluders

(

)

const [inline]

void osg::CollectOccludersVisitor::setCreateDrawablesOnOccludeNodes

(

bool

flag

)

[inline]

bool osg::CollectOccludersVisitor::getCreateDrawablesOnOccludeNodes

(

)

const [inline]

void osg::CollectOccludersVisitor::setCollectedOccluderSet

(

const ShadowVolumeOccluderSet &

svol

)

[inline]

ShadowVolumeOccluderSet& osg::CollectOccludersVisitor::getCollectedOccluderSet

(

)

[inline]

const ShadowVolumeOccluderSet& osg::CollectOccludersVisitor::getCollectedOccluderSet

(

)

const [inline]

void osg::CollectOccludersVisitor::removeOccludedOccluders

(

)

Removes occluded occluders for the collected occluders list, then discards all but MaximumNumberOfActiveOccluders of occluders, discarding the occluders with the lowests shadow occluder volume.

CollectOccludersVisitor& osg::CollectOccludersVisitor::operator=

(

const CollectOccludersVisitor &

)

[inline, protected]

Prevents unwanted copy construction.

Prevents unwanted copy operator.

void osg::CollectOccludersVisitor::handle_cull_callbacks_and_traverse

(

osg::Node &

node

)

[inline, protected]

void osg::CollectOccludersVisitor::handle_cull_callbacks_and_accept	(	osg::Node &	node,
		osg::Node *	acceptNode
	)			[inline, protected]

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Member Data Documentation

float osg::CollectOccludersVisitor::_minimumShadowOccluderVolume [protected]

unsigned osg::CollectOccludersVisitor::_maximumNumberOfActiveOccluders [protected]

bool osg::CollectOccludersVisitor::_createDrawables [protected]

ShadowVolumeOccluderSet osg::CollectOccludersVisitor::_occluderSet [protected]

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

• CollectOccludersVisitor

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