OccluderGeometry provides a sepecialised geometry representation of objects in scene that occlude light and therefore cast shadows. More...

Inheritance diagram for osgShadow::OccluderGeometry:

[legend]

Classes
struct	Edge

Public Types
typedef std::vector< osg::Vec3 >	Vec3List

typedef std::vector< GLuint >	UIntList

Public Types inherited from osg::Drawable
enum	AttributeTypes { VERTICES = 0, WEIGHTS = 1, NORMALS = 2, COLORS = 3, SECONDARY_COLORS = 4, FOG_COORDS = 5, ATTRIBUTE_6 = 6, ATTRIBUTE_7 = 7, TEXTURE_COORDS = 8, TEXTURE_COORDS_0 = TEXTURE_COORDS, TEXTURE_COORDS_1 = TEXTURE_COORDS_0+1, TEXTURE_COORDS_2 = TEXTURE_COORDS_0+2, TEXTURE_COORDS_3 = TEXTURE_COORDS_0+3, TEXTURE_COORDS_4 = TEXTURE_COORDS_0+4, TEXTURE_COORDS_5 = TEXTURE_COORDS_0+5, TEXTURE_COORDS_6 = TEXTURE_COORDS_0+6, TEXTURE_COORDS_7 = TEXTURE_COORDS_0+7 }

typedef unsigned int	AttributeType

Public Types inherited from osg::Node
typedef std::vector< Group * >	ParentList
	A vector of osg::Group pointers which is used to store the parent(s) of node. More...

typedef unsigned int	NodeMask
	This is a set of bits (flags) that represent the Node. More...

typedef std::vector< std::string >	DescriptionList
	A vector of std::string's which are used to describe the object. More...

Public Types inherited from osg::Object
enum	DataVariance { DYNAMIC, STATIC, UNSPECIFIED }

Public Member Functions
	OccluderGeometry ()

	OccluderGeometry (const OccluderGeometry &oc, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)

virtual Object *	cloneType () const
	clone an object of the same type as the node. More...

virtual Object *	clone (const osg::CopyOp &copyop) const
	return a clone of a node, with Object* return type. More...

virtual bool	isSameKindAs (const osg::Object *obj) const
	return true if this and obj are of the same kind of object. More...

virtual const char *	libraryName () const
	return the name of the node's library. More...

virtual const char *	className () const
	return the name of the node's class type. More...

void	computeOccluderGeometry (osg::Node subgraph, osg::Matrix matrix=0, float sampleRatio=1.0f)
	Compute an occluder geometry containing all the geometry in specified subgraph. More...

void	computeOccluderGeometry (osg::Drawable drawable, osg::Matrix matrix=0, float sampleRatio=1.0f)
	Compute an occluder geometry containing the geometry in specified drawable. More...

void	computeShadowVolumeGeometry (const osg::Vec4 &lightpos, ShadowVolumeGeometry &svg) const
	Compute ShadowVolumeGeometry. More...

void	setBoundingPolytope (const osg::Polytope &polytope)
	Set the bounding polytope of the OccluderGeometry. More...

osg::Polytope &	getBoundingPolytope ()
	Get the bounding polytope of the OccluderGeometry. More...

const osg::Polytope &	getBoundingPolytope () const
	Get the const bounding polytope of the OccluderGeometry. More...

virtual void	drawImplementation (osg::RenderInfo &renderInfo) const
	Render the occluder geometry. More...

virtual osg::BoundingBox	computeBoundingBox () const
	Compute the bounding box around occluder geometry. More...

void	processGeometry (osg::Drawable drawable, osg::Matrix matrix=0, float sampleRatio=1.0f)

Public Member Functions inherited from osg::Drawable
	Drawable ()

	Drawable (const Drawable &drawable, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy. More...

	META_Node (osg, Drawable)

virtual Drawable *	asDrawable ()
	convert 'this' into a Drawable pointer if Node is a Drawable, otherwise return 0. More...

virtual const Drawable *	asDrawable () const
	convert 'const this' into a const Drawable pointer if Node is a Drawable, otherwise return 0. More...

virtual void	computeDataVariance ()
	Compute the DataVariance based on an assessment of callback etc. More...

MatrixList	getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const
	Get the list of matrices that transform this node from local coordinates to world coordinates. More...

void	setInitialBound (const osg::BoundingBox &bbox)
	Set the initial bounding volume to use when computing the overall bounding volume. More...

const BoundingBox &	getInitialBound () const
	Set the initial bounding volume to use when computing the overall bounding volume. More...

const BoundingSphere &	getBound () const

const BoundingBox &	getBoundingBox () const
	Get BoundingBox of Drawable. More...

virtual BoundingSphere	computeBound () const
	Compute the bounding sphere around Drawables's geometry. More...

void	setComputeBoundingBoxCallback (ComputeBoundingBoxCallback *callback)
	Set the compute bound callback to override the default computeBound. More...

ComputeBoundingBoxCallback *	getComputeBoundingBoxCallback ()
	Get the compute bound callback. More...

const ComputeBoundingBoxCallback *	getComputeBoundingBoxCallback () const
	Get the const compute bound callback. More...

void	setShape (Shape *shape)
	Set the Shape of the `Drawable`. More...

template<class T >
void	setShape (const ref_ptr< T > &shape)

Shape *	getShape ()
	Get the Shape of the Drawable. More...

const Shape *	getShape () const
	Get the const Shape of the const Drawable. More...

void	setSupportsDisplayList (bool flag)
	Set the drawable so that it can or cannot be used in conjunction with OpenGL display lists. More...

bool	getSupportsDisplayList () const
	Get whether display lists are supported for this drawable instance. More...

void	setUseDisplayList (bool flag)
	When set to true, force the draw method to use OpenGL Display List for rendering. More...

bool	getUseDisplayList () const
	Return whether OpenGL display lists are being used for rendering. More...

GLuint &	getDisplayList (unsigned int contextID) const
	Return OpenGL display list for specified contextID. More...

virtual void	setUseVertexBufferObjects (bool flag)
	When set to true, ignore the setUseDisplayList() settings, and hints to the drawImplementation method to use OpenGL vertex buffer objects for rendering. More...

bool	getUseVertexBufferObjects () const
	Return whether OpenGL vertex buffer objects should be used when supported by OpenGL driver. More...

virtual void	dirtyDisplayList ()
	Force a recompile on next draw() of any OpenGL display list associated with this geoset. More...

virtual unsigned int	getGLObjectSizeHint () const
	Return the estimated size of GLObjects (display lists/vertex buffer objects) that are associated with this drawable. More...

void	draw (RenderInfo &renderInfo) const
	Draw OpenGL primitives. More...

virtual void	compileGLObjects (RenderInfo &renderInfo) const
	Immediately compile this `Drawable` into an OpenGL Display List/VertexBufferObjects. More...

virtual void	setThreadSafeRefUnref (bool threadSafe)
	Set whether to use a mutex to ensure ref() and unref() are thread safe. More...

virtual void	resizeGLObjectBuffers (unsigned int maxSize)
	Resize any per context GLObject buffers to specified size. More...

virtual void	releaseGLObjects (State *state=0) const
	If State is non-zero, this function releases OpenGL objects for the specified graphics context. More...

virtual void	setDrawCallback (DrawCallback *dc)
	Set the DrawCallback which allows users to attach customize the drawing of existing Drawable object. More...

DrawCallback *	getDrawCallback ()
	Get the non const DrawCallback. More...

const DrawCallback *	getDrawCallback () const
	Get the const DrawCallback. More...

virtual bool	supports (const AttributeFunctor &) const
	Return true if the Drawable subclass supports accept(AttributeFunctor&). More...

virtual void	accept (AttributeFunctor &)
	accept an AttributeFunctor and call its methods to tell it about the internal attributes that this Drawable has. More...

virtual bool	supports (const ConstAttributeFunctor &) const
	Return true if the Drawable subclass supports accept(ConstAttributeFunctor&). More...

virtual void	accept (ConstAttributeFunctor &) const
	Accept an AttributeFunctor and call its methods to tell it about the internal attributes that this Drawable has. More...

virtual bool	supports (const PrimitiveFunctor &) const
	Return true if the Drawable subclass supports accept(PrimitiveFunctor&). More...

virtual void	accept (PrimitiveFunctor &) const
	Accept a PrimitiveFunctor and call its methods to tell it about the internal primitives that this Drawable has. More...

virtual bool	supports (const PrimitiveIndexFunctor &) const
	Return true if the Drawable subclass supports accept(PrimitiveIndexFunctor&). More...

virtual void	accept (PrimitiveIndexFunctor &) const
	Accept a PrimitiveIndexFunctor and call its methods to tell it about the internal primitives that this Drawable has. More...

Public Member Functions inherited from osg::Node
	Node ()
	Construct a node. More...

	Node (const Node &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy. More...

virtual Node *	asNode ()
	Convert 'this' into a Node pointer if Object is a Node, otherwise return 0. More...

virtual const Node *	asNode () const
	convert 'const this' into a const Node pointer if Object is a Node, otherwise return 0. More...

virtual Geometry *	asGeometry ()
	convert 'this' into a Geometry pointer if Node is a Geometry, otherwise return 0. More...

virtual const Geometry *	asGeometry () const
	convert 'const this' into a const Geometry pointer if Node is a Geometry, otherwise return 0. More...

virtual Group *	asGroup ()
	convert 'this' into a Group pointer if Node is a Group, otherwise return 0. More...

virtual const Group *	asGroup () const
	convert 'const this' into a const Group pointer if Node is a Group, otherwise return 0. More...

virtual Transform *	asTransform ()
	Convert 'this' into a Transform pointer if Node is a Transform, otherwise return 0. More...

virtual const Transform *	asTransform () const
	convert 'const this' into a const Transform pointer if Node is a Transform, otherwise return 0. More...

virtual Camera *	asCamera ()
	Convert 'this' into a Camera pointer if Node is a Camera, otherwise return 0. More...

virtual const Camera *	asCamera () const
	convert 'const this' into a const Camera pointer if Node is a Camera, otherwise return 0. More...

virtual Switch *	asSwitch ()
	Convert 'this' into a Switch pointer if Node is a Switch, otherwise return 0. More...

virtual const Switch *	asSwitch () const
	convert 'const this' into a const Switch pointer if Node is a Switch, otherwise return 0. More...

virtual Geode *	asGeode ()
	Convert 'this' into a Geode pointer if Node is a Geode, otherwise return 0. More...

virtual const Geode *	asGeode () const
	convert 'const this' into a const Geode pointer if Node is a Geode, otherwise return 0. More...

virtual osgTerrain::Terrain *	asTerrain ()
	Convert 'this' into a Transform pointer if Node is a Terrain, otherwise return 0. More...

virtual const osgTerrain::Terrain *	asTerrain () const
	convert 'const this' into a const Terrain pointer if Node is a Terrain, otherwise return 0. More...

virtual void	accept (NodeVisitor &nv)
	Visitor Pattern : calls the apply method of a NodeVisitor with this node's type. More...

virtual void	ascend (NodeVisitor &nv)
	Traverse upwards : calls parents' accept method with NodeVisitor. More...

virtual void	traverse (NodeVisitor &)
	Traverse downwards : calls children's accept method with NodeVisitor. More...

const ParentList &	getParents () const
	Get the parent list of node. More...

ParentList	getParents ()
	Get the a copy of parent list of node. More...

Group *	getParent (unsigned int i)

const Group *	getParent (unsigned int i) const
	Get a single const parent of node. More...

unsigned int	getNumParents () const
	Get the number of parents of node. More...

NodePathList	getParentalNodePaths (osg::Node *haltTraversalAtNode=0) const
	Get the list of node paths parent paths. More...

MatrixList	getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const
	Get the list of matrices that transform this node from local coordinates to world coordinates. More...

void	setUpdateCallback (Callback *nc)
	Set update node callback, called during update traversal. More...

template<class T >
void	setUpdateCallback (const ref_ptr< T > &nc)

Callback *	getUpdateCallback ()
	Get update node callback, called during update traversal. More...

const Callback *	getUpdateCallback () const
	Get const update node callback, called during update traversal. More...

void	addUpdateCallback (Callback *nc)
	Convenience method that sets the update callback of the node if it doesn't exist, or nest it into the existing one. More...

template<class T >
void	addUpdateCallback (const ref_ptr< T > &nc)

void	removeUpdateCallback (Callback *nc)
	Convenience method that removes a given callback from a node, even if that callback is nested. More...

template<class T >
void	removeUpdateCallback (const ref_ptr< T > &nc)

unsigned int	getNumChildrenRequiringUpdateTraversal () const
	Get the number of Children of this node which require Update traversal, since they have an Update Callback attached to them or their children. More...

void	setEventCallback (Callback *nc)
	Set event node callback, called during event traversal. More...

template<class T >
void	setEventCallback (const ref_ptr< T > &nc)

Callback *	getEventCallback ()
	Get event node callback, called during event traversal. More...

const Callback *	getEventCallback () const
	Get const event node callback, called during event traversal. More...

void	addEventCallback (Callback *nc)
	Convenience method that sets the event callback of the node if it doesn't exist, or nest it into the existing one. More...

template<class T >
void	addEventCallback (const ref_ptr< T > &nc)

void	removeEventCallback (Callback *nc)
	Convenience method that removes a given callback from a node, even if that callback is nested. More...

template<class T >
void	removeEventCallback (const ref_ptr< T > &nc)

unsigned int	getNumChildrenRequiringEventTraversal () const
	Get the number of Children of this node which require Event traversal, since they have an Event Callback attached to them or their children. More...

void	setCullCallback (Callback *nc)
	Set cull node callback, called during cull traversal. More...

template<class T >
void	setCullCallback (const ref_ptr< T > &nc)

Callback *	getCullCallback ()
	Get cull node callback, called during cull traversal. More...

const Callback *	getCullCallback () const
	Get const cull node callback, called during cull traversal. More...

void	addCullCallback (Callback *nc)
	Convenience method that sets the cull callback of the node if it doesn't exist, or nest it into the existing one. More...

template<class T >
void	addCullCallback (const ref_ptr< T > &nc)

void	removeCullCallback (Callback *nc)
	Convenience method that removes a given callback from a node, even if that callback is nested. More...

template<class T >
void	removeCullCallback (const ref_ptr< T > &nc)

void	setCullingActive (bool active)
	Set the view frustum/small feature culling of this node to be active or inactive. More...

bool	getCullingActive () const
	Get the view frustum/small feature _cullingActive flag for this node. More...

unsigned int	getNumChildrenWithCullingDisabled () const
	Get the number of Children of this node which have culling disabled. More...

bool	isCullingActive () const
	Return true if this node can be culled by view frustum, occlusion or small feature culling during the cull traversal. More...

unsigned int	getNumChildrenWithOccluderNodes () const
	Get the number of Children of this node which are or have OccluderNode's. More...

bool	containsOccluderNodes () const
	return true if this node is an OccluderNode or the subgraph below this node are OccluderNodes. More...

void	setNodeMask (NodeMask nm)
	Set the node mask. More...

NodeMask	getNodeMask () const
	Get the node Mask. More...

void	setStateSet (osg::StateSet *stateset)
	Set the node's StateSet. More...

template<class T >
void	setStateSet (const osg::ref_ptr< T > &stateset)

osg::StateSet *	getOrCreateStateSet ()
	return the node's StateSet, if one does not already exist create it set the node and return the newly created StateSet. More...

osg::StateSet *	getStateSet ()
	Return the node's StateSet. More...

const osg::StateSet *	getStateSet () const
	Return the node's const StateSet. More...

void	setDescriptions (const DescriptionList &descriptions)
	Set the list of string descriptions. More...

DescriptionList &	getDescriptions ()
	Get the description list of the node. More...

const DescriptionList &	getDescriptions () const
	Get the const description list of the const node. More...

const std::string &	getDescription (unsigned int i) const
	Get a single const description of the const node. More...

std::string &	getDescription (unsigned int i)
	Get a single description of the node. More...

unsigned int	getNumDescriptions () const
	Get the number of descriptions of the node. More...

void	addDescription (const std::string &desc)
	Add a description string to the node. More...

void	setInitialBound (const osg::BoundingSphere &bsphere)
	Set the initial bounding volume to use when computing the overall bounding volume. More...

const BoundingSphere &	getInitialBound () const
	Set the initial bounding volume to use when computing the overall bounding volume. More...

void	dirtyBound ()
	Mark this node's bounding sphere dirty. More...

const BoundingSphere &	getBound () const

void	setComputeBoundingSphereCallback (ComputeBoundingSphereCallback *callback)
	Set the compute bound callback to override the default computeBound. More...

template<class T >
void	setComputeBoundingSphereCallback (const ref_ptr< T > &callback)

ComputeBoundingSphereCallback *	getComputeBoundingSphereCallback ()
	Get the compute bound callback. More...

const ComputeBoundingSphereCallback *	getComputeBoundingSphereCallback () const
	Get the const compute bound callback. More...

Public Member Functions inherited from osg::Object
	Object ()
	Construct an object. More...

	Object (bool threadSafeRefUnref)

	Object (const Object &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor, optional CopyOp object can be used to control shallow vs deep copying of dynamic data. More...

std::string	getCompoundClassName () const
	return the compound class name that combines the library name and class name. More...

virtual NodeVisitor *	asNodeVisitor ()
	Convert 'this' into a NodeVisitor pointer if Object is a NodeVisitor, otherwise return 0. More...

virtual const NodeVisitor *	asNodeVisitor () const
	convert 'const this' into a const NodeVisitor pointer if Object is a NodeVisitor, otherwise return 0. More...

virtual StateAttribute *	asStateAttribute ()
	Convert 'this' into a StateAttribute pointer if Object is a StateAttribute, otherwise return 0. More...

virtual const StateAttribute *	asStateAttribute () const
	convert 'const this' into a const StateAttribute pointer if Object is a StateAttribute, otherwise return 0. More...

virtual Uniform *	asUniform ()
	Convert 'this' into a Uniform pointer if Object is a Uniform, otherwise return 0. More...

virtual const Uniform *	asUniform () const
	convert 'const this' into a const Uniform pointer if Object is a Uniform, otherwise return 0. More...

virtual void	setName (const std::string &name)
	Set the name of object using C++ style string. More...

void	setName (const char *name)
	Set the name of object using a C style string. More...

const std::string &	getName () const
	Get the name of object. More...

void	setDataVariance (DataVariance dv)
	Set the data variance of this object. More...

DataVariance	getDataVariance () const
	Get the data variance of this object. More...

void	setUserDataContainer (osg::UserDataContainer *udc)
	set the UserDataContainer object. More...

template<class T >
void	setUserDataContainer (const ref_ptr< T > &udc)

osg::UserDataContainer *	getUserDataContainer ()
	get the UserDataContainer attached to this object. More...

const osg::UserDataContainer *	getUserDataContainer () const
	get the const UserDataContainer attached to this object. More...

osg::UserDataContainer *	getOrCreateUserDataContainer ()
	Convenience method that returns the UserDataContainer, and if one doesn't already exist creates and assigns a DefaultUserDataContainer to the Object and then return this new UserDataContainer. More...

virtual void	setUserData (Referenced *obj)
	Set user data, data must be subclassed from Referenced to allow automatic memory handling. More...

template<class T >
void	setUserData (const ref_ptr< T > &ud)

virtual Referenced *	getUserData ()
	Get user data. More...

virtual const Referenced *	getUserData () const
	Get const user data. More...

template<typename T >
bool	getUserValue (const std::string &name, T &value) const
	Convenience method that casts the named UserObject to osg::TemplateValueObject<T> and gets the value. More...

template<typename T >
void	setUserValue (const std::string &name, const T &value)
	Convenience method that creates the osg::TemplateValueObject<T> to store the specified value and adds it as a named UserObject. More...

template<typename T >
BoolValueObject UCharValueObject UShortValueObject UIntValueObject DoubleValueObject Vec3fValueObject Vec2dValueObject Vec4dValueObject PlaneValueObject MatrixdValueObject BoundingBoxdValueObject BoundingSpheredValueObject bool	getUserValue (const std::string &name, T &value) const
	provide implementation of osg::Object::getUserValue(..) template More...

Public Member Functions inherited from osg::Referenced
	Referenced ()

	Referenced (bool threadSafeRefUnref)

	Referenced (const Referenced &)

Referenced &	operator= (const Referenced &)

bool	getThreadSafeRefUnref () const
	Get whether a mutex is used to ensure ref() and unref() are thread safe. More...

OpenThreads::Mutex *	getRefMutex () const
	Get the mutex used to ensure thread safety of ref()/unref(). More...

int	ref () const
	Increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

int	unref () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...

int	unref_nodelete () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...

int	referenceCount () const
	Return the number of pointers currently referencing this object. More...

ObserverSet *	getObserverSet () const
	Get the ObserverSet if one is attached, otherwise return NULL. More...

ObserverSet *	getOrCreateObserverSet () const
	Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. More...

void	addObserver (Observer *observer) const
	Add a Observer that is observing this object, notify the Observer when this object gets deleted. More...

void	removeObserver (Observer *observer) const
	Remove Observer that is observing this object. More...

Protected Types
typedef std::vector< Edge >	EdgeList

Protected Types inherited from osg::Drawable
typedef osg::buffered_value< GLuint >	GLObjectList

Protected Member Functions
virtual	~OccluderGeometry ()

bool	isLightPointSilhouetteEdge (const osg::Vec3 &lightpos, const Edge &edge) const

bool	isLightDirectionSilhouetteEdge (const osg::Vec3 &lightdirection, const Edge &edge) const

void	setUpInternalStructures ()

void	removeDuplicateVertices ()

void	removeNullTriangles ()

void	computeNormals ()

void	buildEdgeMaps ()

void	computeLightDirectionSilhouetteEdges (const osg::Vec3 &lightdirection, UIntList &silhouetteIndices) const

void	computeLightPositionSilhouetteEdges (const osg::Vec3 &lightpos, UIntList &silhouetteIndices) const

Protected Member Functions inherited from osg::Drawable
Drawable &	operator= (const Drawable &)

virtual	~Drawable ()

void	setBound (const BoundingBox &bb) const
	set the bounding box . More...

Protected Member Functions inherited from osg::Node
virtual	~Node ()
	Node destructor. More...

void	addParent (osg::Group *parent)

void	removeParent (osg::Group *parent)

void	setNumChildrenRequiringUpdateTraversal (unsigned int num)

void	setNumChildrenRequiringEventTraversal (unsigned int num)

void	setNumChildrenWithCullingDisabled (unsigned int num)

void	setNumChildrenWithOccluderNodes (unsigned int num)

Protected Member Functions inherited from osg::Object
virtual	~Object ()
	Object destructor. More...

Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()

void	signalObserversAndDelete (bool signalDelete, bool doDelete) const

void	deleteUsingDeleteHandler () const

Protected Attributes
osg::Polytope	_boundingPolytope

Vec3List	_vertices

Vec3List	_normals

Vec3List	_triangleNormals

UIntList	_triangleIndices

EdgeList	_edges

Protected Attributes inherited from osg::Drawable
BoundingBox	_initialBound

ref_ptr< ComputeBoundingBoxCallback >	_computeBoundCallback

BoundingBox	_boundingBox

bool	_boundingBoxComputed

ref_ptr< Shape >	_shape

bool	_supportsDisplayList

bool	_useDisplayList

bool	_supportsVertexBufferObjects

bool	_useVertexBufferObjects

GLObjectList	_globjList

ref_ptr< UpdateCallback >	_drawableUpdateCallback

ref_ptr< EventCallback >	_drawableEventCallback

ref_ptr< CullCallback >	_drawableCullCallback

ref_ptr< DrawCallback >	_drawCallback

Protected Attributes inherited from osg::Node
BoundingSphere	_initialBound

ref_ptr< ComputeBoundingSphereCallback >	_computeBoundCallback

BoundingSphere	_boundingSphere

bool	_boundingSphereComputed

ParentList	_parents

ref_ptr< Callback >	_updateCallback

unsigned int	_numChildrenRequiringUpdateTraversal

ref_ptr< Callback >	_eventCallback

unsigned int	_numChildrenRequiringEventTraversal

ref_ptr< Callback >	_cullCallback

bool	_cullingActive

unsigned int	_numChildrenWithCullingDisabled

unsigned int	_numChildrenWithOccluderNodes

NodeMask	_nodeMask

ref_ptr< StateSet >	_stateset

Protected Attributes inherited from osg::Object
std::string	_name

DataVariance	_dataVariance

osg::UserDataContainer *	_userDataContainer

Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet

OpenThreads::Atomic	_refCount

Additional Inherited Members
Static Public Member Functions inherited from osg::Drawable
static GLuint	generateDisplayList (unsigned int contextID, unsigned int sizeHint=0)
	Return a OpenGL display list handle a newly generated or reused from display list cache. More...

static void	deleteDisplayList (unsigned int contextID, GLuint globj, unsigned int sizeHint=0)
	Use deleteDisplayList instead of glDeleteList to allow OpenGL display list to be cached until they can be deleted by the OpenGL context in which they were created, specified by contextID. More...

static void	setMinimumNumberOfDisplayListsToRetainInCache (unsigned int minimum)
	Set the minimum number of display lists to retain in the deleted display list cache. More...

static unsigned int	getMinimumNumberOfDisplayListsToRetainInCache ()
	Get the minimum number of display lists to retain in the deleted display list cache. More...

Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
	Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More...

static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
	Set whether reference counting should use a mutex for thread safe reference counting. More...

static bool	getThreadSafeReferenceCounting ()
	Get whether reference counting is active. More...

static void	setDeleteHandler (DeleteHandler *handler)
	Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More...

static DeleteHandler *	getDeleteHandler ()
	Get a DeleteHandler. More...

Detailed Description

OccluderGeometry provides a sepecialised geometry representation of objects in scene that occlude light and therefore cast shadows.

OccluderGeometry supports the computation of silhouette edges and shadow volume geometries, as well as use as geometry that one can rendering into a shadow map or end caps for the ZP+ algorithm. OccluderGeometry may be of the same resolution as an underlying geometry that it represents, or can be of lower resolution and combine manager separate geometries together into a single shadow casting object. OccluderGeometry may be attached as UserData to Nodes or to Drawables.

Member Typedef Documentation

typedef std::vector<Edge> osgShadow::OccluderGeometry::EdgeList

protected

typedef std::vector<GLuint> osgShadow::OccluderGeometry::UIntList

typedef std::vector<osg::Vec3> osgShadow::OccluderGeometry::Vec3List

Constructor & Destructor Documentation

osgShadow::OccluderGeometry::OccluderGeometry ( )

osgShadow::OccluderGeometry::OccluderGeometry	(	const OccluderGeometry &	oc,
		const osg::CopyOp &	copyop = `osg::CopyOp::SHALLOW_COPY`
	)

virtual osgShadow::OccluderGeometry::~OccluderGeometry ( )

inlineprotectedvirtual

Member Function Documentation

void osgShadow::OccluderGeometry::buildEdgeMaps ( )

protected

virtual const char* osgShadow::OccluderGeometry::className ( ) const

inlinevirtual

return the name of the node's class type.

Reimplemented from osg::Node.

virtual Object* osgShadow::OccluderGeometry::clone ( const osg::CopyOp & copyop ) const

inlinevirtual

return a clone of a node, with Object* return type.

Reimplemented from osg::Node.

virtual Object* osgShadow::OccluderGeometry::cloneType ( ) const

inlinevirtual

clone an object of the same type as the node.

Reimplemented from osg::Node.

virtual osg::BoundingBox osgShadow::OccluderGeometry::computeBoundingBox ( ) const

virtual

Compute the bounding box around occluder geometry.

Reimplemented from osg::Drawable.

void osgShadow::OccluderGeometry::computeLightDirectionSilhouetteEdges	(	const osg::Vec3 &	lightdirection,
		UIntList &	silhouetteIndices
	)		const

protected

void osgShadow::OccluderGeometry::computeLightPositionSilhouetteEdges	(	const osg::Vec3 &	lightpos,
		UIntList &	silhouetteIndices
	)		const

protected

void osgShadow::OccluderGeometry::computeNormals ( )

protected

void osgShadow::OccluderGeometry::computeOccluderGeometry	(	osg::Node *	subgraph,
		osg::Matrix *	matrix = `0`,
		float	sampleRatio = `1.0f`
	)

Compute an occluder geometry containing all the geometry in specified subgraph.

void osgShadow::OccluderGeometry::computeOccluderGeometry	(	osg::Drawable *	drawable,
		osg::Matrix *	matrix = `0`,
		float	sampleRatio = `1.0f`
	)

Compute an occluder geometry containing the geometry in specified drawable.

void osgShadow::OccluderGeometry::computeShadowVolumeGeometry	(	const osg::Vec4 &	lightpos,
		ShadowVolumeGeometry &	svg
	)		const

Compute ShadowVolumeGeometry.

virtual void osgShadow::OccluderGeometry::drawImplementation ( osg::RenderInfo & renderInfo ) const

virtual

Render the occluder geometry.

Reimplemented from osg::Drawable.

osg::Polytope& osgShadow::OccluderGeometry::getBoundingPolytope ( )

inline

Get the bounding polytope of the OccluderGeometry.

const osg::Polytope& osgShadow::OccluderGeometry::getBoundingPolytope ( ) const

inline

Get the const bounding polytope of the OccluderGeometry.

bool osgShadow::OccluderGeometry::isLightDirectionSilhouetteEdge	(	const osg::Vec3 &	lightdirection,
		const Edge &	edge
	)		const

inlineprotected

bool osgShadow::OccluderGeometry::isLightPointSilhouetteEdge	(	const osg::Vec3 &	lightpos,
		const Edge &	edge
	)		const

inlineprotected

virtual bool osgShadow::OccluderGeometry::isSameKindAs ( const osg::Object * obj ) const

inlinevirtual

return true if this and obj are of the same kind of object.

Reimplemented from osg::Node.

virtual const char* osgShadow::OccluderGeometry::libraryName ( ) const

inlinevirtual

return the name of the node's library.

Reimplemented from osg::Node.

void osgShadow::OccluderGeometry::processGeometry	(	osg::Drawable *	drawable,
		osg::Matrix *	matrix = `0`,
		float	sampleRatio = `1.0f`
	)

void osgShadow::OccluderGeometry::removeDuplicateVertices ( )

protected

void osgShadow::OccluderGeometry::removeNullTriangles ( )

protected

void osgShadow::OccluderGeometry::setBoundingPolytope ( const osg::Polytope & polytope )

inline

Set the bounding polytope of the OccluderGeometry.

void osgShadow::OccluderGeometry::setUpInternalStructures ( )

protected

Member Data Documentation

osg::Polytope osgShadow::OccluderGeometry::_boundingPolytope

protected

EdgeList osgShadow::OccluderGeometry::_edges

protected

Vec3List osgShadow::OccluderGeometry::_normals

protected

UIntList osgShadow::OccluderGeometry::_triangleIndices

protected

Vec3List osgShadow::OccluderGeometry::_triangleNormals

protected

Vec3List osgShadow::OccluderGeometry::_vertices

protected

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

osgShadow/OccluderGeometry

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