osgSim::ImpostorSprite Class Reference

#include <ImpostorSprite>

Inheritance diagram for osgSim::ImpostorSprite:

Public Member Functions
	ImpostorSprite ()
virtual osg::Object *	cloneType () const
virtual osg::Object *	clone (const osg::CopyOp &) const
virtual bool	isSameKindAs (const osg::Object *obj) const
virtual const char *	libraryName () const
virtual const char *	className () const
void	setParent (Impostor *parent)
Impostor *	getParent ()
const Impostor *	getParent () const
void	setStoredLocalEyePoint (const osg::Vec3 &v)
const osg::Vec3 &	getStoredLocalEyePoint () const
void	setLastFrameUsed (unsigned int frameNumber)
unsigned int	getLastFrameUsed () const
void	dirty ()
osg::Vec3 *	getCoords ()
const osg::Vec3 *	getCoords () const
osg::Vec2 *	getTexCoords ()
const osg::Vec2 *	getTexCoords () const
osg::Vec3 *	getControlCoords ()
const osg::Vec3 *	getControlCoords () const
float	calcPixelError (const osg::Matrix &MVPW) const
void	setTexture (osg::Texture2D *tex, int s, int t)
osg::Texture2D *	getTexture ()
const osg::Texture2D *	getTexture () const
int	s () const
int	t () const
void	setCamera (osg::Camera *camera)
osg::Camera *	getCamera ()
const osg::Camera *	getCamera () const
Public Member Functions inherited from osg::Geometry
	Geometry ()
	Geometry (const Geometry &geometry, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	META_Node (osg, Geometry)
virtual Geometry *	asGeometry ()
virtual const Geometry *	asGeometry () const
bool	empty () const
void	setVertexArray (Array *array)
Array *	getVertexArray ()
const Array *	getVertexArray () const
void	setNormalArray (Array *array)
void	setNormalArray (Array *array, osg::Array::Binding binding)
Array *	getNormalArray ()
const Array *	getNormalArray () const
void	setColorArray (Array *array)
void	setColorArray (Array *array, osg::Array::Binding binding)
Array *	getColorArray ()
const Array *	getColorArray () const
void	setSecondaryColorArray (Array *array)
void	setSecondaryColorArray (Array *array, osg::Array::Binding binding)
Array *	getSecondaryColorArray ()
const Array *	getSecondaryColorArray () const
void	setFogCoordArray (Array *array)
void	setFogCoordArray (Array *array, osg::Array::Binding binding)
Array *	getFogCoordArray ()
const Array *	getFogCoordArray () const
void	setTexCoordArray (unsigned int unit, Array *array)
void	setTexCoordArray (unsigned int unit, Array *array, osg::Array::Binding binding)
Array *	getTexCoordArray (unsigned int unit)
const Array *	getTexCoordArray (unsigned int unit) const
unsigned int	getNumTexCoordArrays () const
void	setTexCoordArrayList (const ArrayList &arrrayList)
ArrayList &	getTexCoordArrayList ()
const ArrayList &	getTexCoordArrayList () const
void	setVertexAttribArray (unsigned int index, Array *array)
void	setVertexAttribArray (unsigned int index, Array *array, osg::Array::Binding binding)
Array *	getVertexAttribArray (unsigned int index)
const Array *	getVertexAttribArray (unsigned int index) const
unsigned int	getNumVertexAttribArrays () const
void	setVertexAttribArrayList (const ArrayList &arrayList)
ArrayList &	getVertexAttribArrayList ()
const ArrayList &	getVertexAttribArrayList () const
void	setPrimitiveSetList (const PrimitiveSetList &primitives)
PrimitiveSetList &	getPrimitiveSetList ()
const PrimitiveSetList &	getPrimitiveSetList () const
unsigned int	getNumPrimitiveSets () const
PrimitiveSet *	getPrimitiveSet (unsigned int pos)
const PrimitiveSet *	getPrimitiveSet (unsigned int pos) const
bool	addPrimitiveSet (PrimitiveSet *primitiveset)
bool	setPrimitiveSet (unsigned int i, PrimitiveSet *primitiveset)
bool	insertPrimitiveSet (unsigned int i, PrimitiveSet *primitiveset)
bool	removePrimitiveSet (unsigned int i, unsigned int numElementsToRemove=1)
unsigned int	getPrimitiveSetIndex (const PrimitiveSet *primitiveset) const
void	configureBufferObjects ()
bool	containsSharedArrays () const
void	duplicateSharedArrays ()
virtual void	setUseVertexBufferObjects (bool flag)
virtual void	dirtyGLObjects ()
virtual void	resizeGLObjectBuffers (unsigned int maxSize)
virtual void	releaseGLObjects (State *state=0) const
bool	getArrayList (ArrayList &arrayList) const
bool	getDrawElementsList (DrawElementsList &drawElementsList) const
osg::VertexBufferObject *	getOrCreateVertexBufferObject ()
osg::ElementBufferObject *	getOrCreateElementBufferObject ()
virtual unsigned int	getGLObjectSizeHint () const
virtual void	compileGLObjects (RenderInfo &renderInfo) const
virtual void	drawImplementation (RenderInfo &renderInfo) const
void	drawVertexArraysImplementation (RenderInfo &renderInfo) const
void	drawPrimitivesImplementation (RenderInfo &renderInfo) const
virtual bool	supports (const Drawable::AttributeFunctor &) const
virtual void	accept (Drawable::AttributeFunctor &af)
virtual bool	supports (const Drawable::ConstAttributeFunctor &) const
virtual void	accept (Drawable::ConstAttributeFunctor &af) const
virtual bool	supports (const PrimitiveFunctor &) const
virtual void	accept (PrimitiveFunctor &pf) const
virtual bool	supports (const PrimitiveIndexFunctor &) const
virtual void	accept (PrimitiveIndexFunctor &pf) const
bool	containsDeprecatedData () const
bool	checkForDeprecatedData ()
void	fixDeprecatedData ()
void	setNormalBinding (AttributeBinding ab)
void	setColorBinding (AttributeBinding ab)
void	setSecondaryColorBinding (AttributeBinding ab)
void	setFogCoordBinding (AttributeBinding ab)
void	setVertexAttribBinding (unsigned int index, AttributeBinding ab)
AttributeBinding	getNormalBinding () const
AttributeBinding	getColorBinding () const
AttributeBinding	getSecondaryColorBinding () const
AttributeBinding	getFogCoordBinding () const
AttributeBinding	getVertexAttribBinding (unsigned int index) const
void	setVertexAttribNormalize (unsigned int index, GLboolean norm)
GLboolean	getVertexAttribNormalize (unsigned int index) const
Public Member Functions inherited from osg::Drawable
	Drawable ()
	Drawable (const Drawable &drawable, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	META_Node (osg, Drawable)
virtual Drawable *	asDrawable ()
virtual const Drawable *	asDrawable () const
virtual void	computeDataVariance ()
MatrixList	getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const
void	setInitialBound (const osg::BoundingBox &bbox)
const BoundingBox &	getInitialBound () const
const BoundingSphere &	getBound () const
const BoundingBox &	getBoundingBox () const
virtual BoundingSphere	computeBound () const
virtual BoundingBox	computeBoundingBox () const
void	setComputeBoundingBoxCallback (ComputeBoundingBoxCallback *callback)
ComputeBoundingBoxCallback *	getComputeBoundingBoxCallback ()
const ComputeBoundingBoxCallback *	getComputeBoundingBoxCallback () const
virtual void	setShape (Shape *shape)
template<class T>
void	setShape (const ref_ptr< T > &shape)
Shape *	getShape ()
const Shape *	getShape () const
void	setSupportsDisplayList (bool flag)
bool	getSupportsDisplayList () const
void	setUseDisplayList (bool flag)
bool	getUseDisplayList () const
GLuint &	getDisplayList (unsigned int contextID) const
bool	getUseVertexBufferObjects () const
void	setUseVertexArrayObject (bool flag)
bool	getUseVertexArrayObject () const
void	draw (RenderInfo &renderInfo) const
void	drawInner (RenderInfo &renderInfo) const
void	setCreateVertexArrayStateCallback (CreateVertexArrayStateCallback *cb)
CreateVertexArrayStateCallback *	getCreateVertexArrayStateCallback ()
const CreateVertexArrayStateCallback *	getCreateVertexArrayStateCallback () const
VertexArrayState *	createVertexArrayState (RenderInfo &renderInfo) const
void	setVertexArrayStateList (VertexArrayStateList &vasl)
VertexArrayStateList &	getVertexArrayStateList ()
const VertexArrayStateList &	getVertexArrayStateList () const
virtual void	setThreadSafeRefUnref (bool threadSafe)
virtual void	setDrawCallback (DrawCallback *dc)
DrawCallback *	getDrawCallback ()
const DrawCallback *	getDrawCallback () const
Public Member Functions inherited from osg::Node
	Node ()
	Node (const Node &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
virtual Node *	asNode ()
virtual const Node *	asNode () const
virtual Group *	asGroup ()
virtual const Group *	asGroup () const
virtual Transform *	asTransform ()
virtual const Transform *	asTransform () const
virtual Switch *	asSwitch ()
virtual const Switch *	asSwitch () const
virtual Geode *	asGeode ()
virtual const Geode *	asGeode () const
virtual osgTerrain::Terrain *	asTerrain ()
virtual const osgTerrain::Terrain *	asTerrain () const
virtual void	accept (NodeVisitor &nv)
virtual void	ascend (NodeVisitor &nv)
virtual void	traverse (NodeVisitor &)
const ParentList &	getParents () const
ParentList	getParents ()
Group *	getParent (unsigned int i)
const Group *	getParent (unsigned int i) const
unsigned int	getNumParents () const
NodePathList	getParentalNodePaths (osg::Node *haltTraversalAtNode=0) const
MatrixList	getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const
void	setUpdateCallback (Callback *nc)
template<class T>
void	setUpdateCallback (const ref_ptr< T > &nc)
Callback *	getUpdateCallback ()
const Callback *	getUpdateCallback () const
void	addUpdateCallback (Callback *nc)
template<class T>
void	addUpdateCallback (const ref_ptr< T > &nc)
void	removeUpdateCallback (Callback *nc)
template<class T>
void	removeUpdateCallback (const ref_ptr< T > &nc)
unsigned int	getNumChildrenRequiringUpdateTraversal () const
void	setEventCallback (Callback *nc)
template<class T>
void	setEventCallback (const ref_ptr< T > &nc)
Callback *	getEventCallback ()
const Callback *	getEventCallback () const
void	addEventCallback (Callback *nc)
template<class T>
void	addEventCallback (const ref_ptr< T > &nc)
void	removeEventCallback (Callback *nc)
template<class T>
void	removeEventCallback (const ref_ptr< T > &nc)
unsigned int	getNumChildrenRequiringEventTraversal () const
void	setCullCallback (Callback *nc)
template<class T>
void	setCullCallback (const ref_ptr< T > &nc)
Callback *	getCullCallback ()
const Callback *	getCullCallback () const
void	addCullCallback (Callback *nc)
template<class T>
void	addCullCallback (const ref_ptr< T > &nc)
void	removeCullCallback (Callback *nc)
template<class T>
void	removeCullCallback (const ref_ptr< T > &nc)
void	setCullingActive (bool active)
bool	getCullingActive () const
unsigned int	getNumChildrenWithCullingDisabled () const
bool	isCullingActive () const
unsigned int	getNumChildrenWithOccluderNodes () const
bool	containsOccluderNodes () const
void	setNodeMask (NodeMask nm)
NodeMask	getNodeMask () const
void	setStateSet (osg::StateSet *stateset)
template<class T>
void	setStateSet (const osg::ref_ptr< T > &stateset)
osg::StateSet *	getOrCreateStateSet ()
osg::StateSet *	getStateSet ()
const osg::StateSet *	getStateSet () const
void	setDescriptions (const DescriptionList &descriptions)
DescriptionList &	getDescriptions ()
const DescriptionList &	getDescriptions () const
const std::string &	getDescription (unsigned int i) const
std::string &	getDescription (unsigned int i)
unsigned int	getNumDescriptions () const
void	addDescription (const std::string &desc)
void	setInitialBound (const osg::BoundingSphere &bsphere)
const BoundingSphere &	getInitialBound () const
void	dirtyBound ()
const BoundingSphere &	getBound () const
void	setComputeBoundingSphereCallback (ComputeBoundingSphereCallback *callback)
template<class T>
void	setComputeBoundingSphereCallback (const ref_ptr< T > &callback)
ComputeBoundingSphereCallback *	getComputeBoundingSphereCallback ()
const ComputeBoundingSphereCallback *	getComputeBoundingSphereCallback () const
Public Member Functions inherited from osg::Object
	Object ()
	Object (bool threadSafeRefUnref)
	Object (const Object &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
std::string	getCompoundClassName () const
virtual NodeVisitor *	asNodeVisitor ()
virtual const NodeVisitor *	asNodeVisitor () const
virtual StateSet *	asStateSet ()
virtual const StateSet *	asStateSet () const
virtual StateAttribute *	asStateAttribute ()
virtual const StateAttribute *	asStateAttribute () const
virtual Uniform *	asUniform ()
virtual const Uniform *	asUniform () const
virtual Camera *	asCamera ()
virtual const Camera *	asCamera () const
virtual Callback *	asCallback ()
virtual const Callback *	asCallback () const
virtual CallbackObject *	asCallbackObject ()
virtual const CallbackObject *	asCallbackObject () const
virtual UserDataContainer *	asUserDataContainer ()
virtual const UserDataContainer *	asUserDataContainer () const
virtual ValueObject *	asValueObject ()
virtual const ValueObject *	asValueObject () const
virtual Image *	asImage ()
virtual const Image *	asImage () const
virtual void	setName (const std::string &name)
void	setName (const char *name)
const std::string &	getName () const
void	setDataVariance (DataVariance dv)
DataVariance	getDataVariance () const
void	setUserDataContainer (osg::UserDataContainer *udc)
template<class T>
void	setUserDataContainer (const ref_ptr< T > &udc)
osg::UserDataContainer *	getUserDataContainer ()
const osg::UserDataContainer *	getUserDataContainer () const
osg::UserDataContainer *	getOrCreateUserDataContainer ()
virtual void	setUserData (Referenced *obj)
template<class T>
void	setUserData (const ref_ptr< T > &ud)
virtual Referenced *	getUserData ()
virtual const Referenced *	getUserData () const
template<typename T>
bool	getUserValue (const std::string &name, T &value) const
template<typename T>
void	setUserValue (const std::string &name, const T &value)
template<typename T>
BoolValueObject UCharValueObject UShortValueObject UIntValueObject DoubleValueObject Vec3fValueObject Vec2dValueObject Vec4dValueObject PlaneValueObject MatrixdValueObject BoundingBoxdValueObject BoundingSpheredValueObject bool	getUserValue (const std::string &name, T &value) const
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (const Referenced &)
bool	getThreadSafeRefUnref () const
OpenThreads::Mutex *	getRefMutex () const
int	ref () const
int	unref () const
int	unref_nodelete () const
int	referenceCount () const
ObserverSet *	getObserverSet () const
ObserverSet *	getOrCreateObserverSet () const
void	addObserver (Observer *observer) const
void	removeObserver (Observer *observer) const

Protected Member Functions
	ImpostorSprite (const ImpostorSprite &)
ImpostorSprite &	operator= (const ImpostorSprite &)
virtual	~ImpostorSprite ()
void	init ()
Protected Member Functions inherited from osg::Geometry
Geometry &	operator= (const Geometry &)
virtual	~Geometry ()
void	addVertexBufferObjectIfRequired (osg::Array *array)
void	addElementBufferObjectIfRequired (osg::PrimitiveSet *primitiveSet)
virtual VertexArrayState *	createVertexArrayStateImplementation (RenderInfo &renderInfo) const
Protected Member Functions inherited from osg::Drawable
Drawable &	operator= (const Drawable &)
virtual	~Drawable ()
void	setBound (const BoundingBox &bb) const
Protected Member Functions inherited from osg::Node
virtual	~Node ()
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 ()
Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const
void	deleteUsingDeleteHandler () const

Protected Attributes
Impostor *	_parent
osg::ref_ptr< osg::Camera >	_camera
ImpostorSpriteManager *	_ism
ImpostorSprite *	_previous
ImpostorSprite *	_next
unsigned int	_lastFrameUsed
osg::Vec3	_storedLocalEyePoint
osg::ref_ptr< osg::Vec3Array >	_coords
osg::ref_ptr< osg::Vec2Array >	_texcoords
osg::Vec3	_controlcoords [4]
osg::Texture2D *	_texture
int	_s
int	_t
Protected Attributes inherited from osg::Geometry
PrimitiveSetList	_primitives
osg::ref_ptr< Array >	_vertexArray
osg::ref_ptr< Array >	_normalArray
osg::ref_ptr< Array >	_colorArray
osg::ref_ptr< Array >	_secondaryColorArray
osg::ref_ptr< Array >	_fogCoordArray
ArrayList	_texCoordList
ArrayList	_vertexAttribList
bool	_containsDeprecatedData
Protected Attributes inherited from osg::Drawable
BoundingBox	_initialBoundingBox
ref_ptr< ComputeBoundingBoxCallback >	_computeBoundingBoxCallback
BoundingBox	_boundingBox
ref_ptr< Shape >	_shape
bool	_supportsDisplayList
bool	_useDisplayList
bool	_supportsVertexBufferObjects
bool	_useVertexBufferObjects
bool	_useVertexArrayObject
GLObjectList	_globjList
VertexArrayStateList	_vertexArrayStateList
ref_ptr< DrawCallback >	_drawCallback
ref_ptr< CreateVertexArrayStateCallback >	_createVertexArrayStateCallback
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

Friends
class	osgSim::ImpostorSpriteManager

Additional Inherited Members
Public Types inherited from osg::Geometry
enum	AttributeBinding { BIND_OFF =0 , BIND_OVERALL =1 , BIND_PER_PRIMITIVE_SET =2 , BIND_PER_VERTEX =4 }
typedef std::vector< osg::ref_ptr< osg::Array > >	ArrayList
typedef std::vector< ref_ptr< PrimitiveSet > >	PrimitiveSetList
typedef std::vector< osg::DrawElements * >	DrawElementsList
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 DrawableUpdateCallback	UpdateCallback
typedef DrawableEventCallback	EventCallback
typedef DrawableCullCallback	CullCallback
typedef unsigned int	AttributeType
Public Types inherited from osg::Node
typedef std::vector< Group * >	ParentList
typedef unsigned int	NodeMask
typedef std::vector< std::string >	DescriptionList
Public Types inherited from osg::Object
enum	DataVariance { DYNAMIC , STATIC , UNSPECIFIED }
Static Public Member Functions inherited from osg::Drawable
static GLuint	generateDisplayList (unsigned int contextID, unsigned int sizeHint=0)
static void	deleteDisplayList (unsigned int contextID, GLuint globj, unsigned int sizeHint=0)
static void	setMinimumNumberOfDisplayListsToRetainInCache (unsigned int minimum)
static unsigned int	getMinimumNumberOfDisplayListsToRetainInCache ()
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
static void	setDeleteHandler (DeleteHandler *handler)
static DeleteHandler *	getDeleteHandler ()
Protected Types inherited from osg::Drawable
typedef osg::buffered_value< GLuint >	GLObjectList

Detailed Description

An ImposterSprite is a textured quad which is rendered in place of 3D geometry. The ImposterSprite is generated by rendering the original 3D geometry to a texture as an image cache. The ImpostorSprite is automatically generated by the osgUtil::CullVisitor so it not necessary to deal with it directly.

Constructor & Destructor Documentation

ImpostorSprite() [1/2]

osgSim::ImpostorSprite::ImpostorSprite

(

)

Referenced by clone(), cloneType(), ImpostorSprite(), isSameKindAs(), and operator=().

ImpostorSprite() [2/2]

osgSim::ImpostorSprite::ImpostorSprite ( const ImpostorSprite & )

protected

References ImpostorSprite().

~ImpostorSprite()

virtual osgSim::ImpostorSprite::~ImpostorSprite ( )

protectedvirtual

Member Function Documentation

calcPixelError()

float osgSim::ImpostorSprite::calcPixelError

(

const osg::Matrix &

MVPW

)

const

Calculate the pixel error value for passing in the ModelViewProjectionWindow transform, which transform local coords into screen space.

className()

virtual const char * osgSim::ImpostorSprite::className ( ) const

inlinevirtual

return the name of the node's class type.

Reimplemented from osg::Node.

clone()

virtual osg::Object * osgSim::ImpostorSprite::clone ( const osg::CopyOp & ) const

inlinevirtual

Clone on ImpostorSprite just returns a clone of type, since it is not appropriate to share data of an ImpostorSprite.

Reimplemented from osg::Node.

References ImpostorSprite().

cloneType()

virtual osg::Object * osgSim::ImpostorSprite::cloneType ( ) const

inlinevirtual

Clone an object of the same type as an ImpostorSprite.

Reimplemented from osg::Node.

References ImpostorSprite().

dirty()

void osgSim::ImpostorSprite::dirty

(

)

getCamera() [1/2]

osg::Camera * osgSim::ImpostorSprite::getCamera ( )

inline

Get the camera node to use for pre rendering the impostor sprite's texture.

References _camera.

getCamera() [2/2]

const osg::Camera * osgSim::ImpostorSprite::getCamera ( ) const

inline

Get the const camera node to use for pre rendering the impostor sprite's texture.

References _camera.

getControlCoords() [1/2]

osg::Vec3 * osgSim::ImpostorSprite::getControlCoords ( )

inline

Get the control coordinates of the corners of the quad. The control coordinates are the corners of the quad projected out onto the front face of bounding box which enclosed the impostor geometry when it was pre-rendered into the impostor sprite's texture. At the point of creation/or update of the impostor sprite the control coords will lie on top of the corners of the quad in screen space - with a pixel error of zero. Once the camera moves relative to the impostor sprite the control coords will no longer lie on top of the corners of the quad in screen space - a pixel error will have accumulated. This pixel error can then be used to determine whether the impostor needs to be updated. Stored in the order, [0] - top_left, [1] - bottom_left, [2] - bottom_right, [3] - top_left.

References _controlcoords.

getControlCoords() [2/2]

const osg::Vec3 * osgSim::ImpostorSprite::getControlCoords ( ) const

inline

Get the const control coordinates of the corners of the quad.

References _controlcoords.

getCoords() [1/2]

osg::Vec3 * osgSim::ImpostorSprite::getCoords ( )

inline

Get the coordinates of the corners of the quad. Stored in the order, [0] - top_left, [1] - bottom_left, [2] - bottom_right, [3] - top_left.

References _coords.

getCoords() [2/2]

const osg::Vec3 * osgSim::ImpostorSprite::getCoords ( ) const

inline

Get the const coordinates of the corners of the quad.

References _coords.

getLastFrameUsed()

unsigned int osgSim::ImpostorSprite::getLastFrameUsed ( ) const

inline

Get the frame number for when the ImpostorSprite was last used in rendering.

References _lastFrameUsed.

getParent() [1/2]

Impostor * osgSim::ImpostorSprite::getParent ( )

inline

Get the parent, which is an Impostor.

References _parent.

getParent() [2/2]

const Impostor * osgSim::ImpostorSprite::getParent ( ) const

inline

Get the const parent, which is an Impostor.

References _parent.

getStoredLocalEyePoint()

const osg::Vec3 & osgSim::ImpostorSprite::getStoredLocalEyePoint ( ) const

inline

Get the eye point for when the ImpostorSprite was snapped.

References _storedLocalEyePoint.

getTexCoords() [1/2]

osg::Vec2 * osgSim::ImpostorSprite::getTexCoords ( )

inline

Get the texture coordinates of the corners of the quad. Stored in the order, [0] - top_left, [1] - bottom_left, [2] - bottom_right, [3] - top_left.

References _texcoords.

getTexCoords() [2/2]

const osg::Vec2 * osgSim::ImpostorSprite::getTexCoords ( ) const

inline

Get the const texture coordinates of the corners of the quad.

References _texcoords.

getTexture() [1/2]

osg::Texture2D * osgSim::ImpostorSprite::getTexture ( )

inline

References _texture.

getTexture() [2/2]

const osg::Texture2D * osgSim::ImpostorSprite::getTexture ( ) const

inline

References _texture.

init()

void osgSim::ImpostorSprite::init ( )

protected

isSameKindAs()

virtual bool osgSim::ImpostorSprite::isSameKindAs ( const osg::Object * obj ) const

inlinevirtual

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

Reimplemented from osg::Node.

References ImpostorSprite(), and NULL.

libraryName()

virtual const char * osgSim::ImpostorSprite::libraryName ( ) const

inlinevirtual

return the name of the node's library.

Reimplemented from osg::Node.

operator=()

ImpostorSprite & osgSim::ImpostorSprite::operator= ( const ImpostorSprite & )

inlineprotected

References ImpostorSprite().

s()

int osgSim::ImpostorSprite::s ( ) const

inline

References _s.

Referenced by setTexture().

setCamera()

void osgSim::ImpostorSprite::setCamera ( osg::Camera * camera )

inline

Set the camera node to use for pre rendering the impostor sprite's texture.

References _camera.

setLastFrameUsed()

void osgSim::ImpostorSprite::setLastFrameUsed ( unsigned int frameNumber )

inline

Set the frame number for when the ImpostorSprite was last used in rendering.

References _lastFrameUsed.

setParent()

void osgSim::ImpostorSprite::setParent ( Impostor * parent )

inline

Set the parent, which must be an Impostor. Unlike conventional Drawables, ImpostorSprites can only ever have one parent.

References _parent.

setStoredLocalEyePoint()

void osgSim::ImpostorSprite::setStoredLocalEyePoint ( const osg::Vec3 & v )

inline

Set the eye point for when the ImpostorSprite was snapped.

References _storedLocalEyePoint.

setTexture()

void osgSim::ImpostorSprite::setTexture	(	osg::Texture2D *	tex,
		int	s,
		int	t )

References s(), and t().

t()

int osgSim::ImpostorSprite::t ( ) const

inline

References _t.

Referenced by setTexture().

Friends And Related Symbol Documentation

osgSim::ImpostorSpriteManager

friend class osgSim::ImpostorSpriteManager

friend

Member Data Documentation

_camera

osg::ref_ptr<osg::Camera> osgSim::ImpostorSprite::_camera

protected

Referenced by getCamera(), getCamera(), and setCamera().

_controlcoords

osg::Vec3 osgSim::ImpostorSprite::_controlcoords[4]

protected

Referenced by getControlCoords(), and getControlCoords().

_coords

osg::ref_ptr<osg::Vec3Array> osgSim::ImpostorSprite::_coords

protected

Referenced by getCoords(), and getCoords().

_ism

ImpostorSpriteManager* osgSim::ImpostorSprite::_ism

protected

_lastFrameUsed

unsigned int osgSim::ImpostorSprite::_lastFrameUsed

protected

Referenced by getLastFrameUsed(), and setLastFrameUsed().

_next

ImpostorSprite* osgSim::ImpostorSprite::_next

protected

_parent

Impostor* osgSim::ImpostorSprite::_parent

protected

Referenced by getParent(), getParent(), and setParent().

_previous

ImpostorSprite* osgSim::ImpostorSprite::_previous

protected

_s

int osgSim::ImpostorSprite::_s

protected

Referenced by s().

_storedLocalEyePoint

osg::Vec3 osgSim::ImpostorSprite::_storedLocalEyePoint

protected

Referenced by getStoredLocalEyePoint(), and setStoredLocalEyePoint().

_t

int osgSim::ImpostorSprite::_t

protected

Referenced by t().

_texcoords

osg::ref_ptr<osg::Vec2Array> osgSim::ImpostorSprite::_texcoords

protected

Referenced by getTexCoords(), and getTexCoords().

_texture

osg::Texture2D* osgSim::ImpostorSprite::_texture

protected

Referenced by getTexture(), and getTexture().

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

• ImpostorSprite