openscenegraph
osgFX::Effect Class Referenceabstract

#include <Effect>

Inheritance diagram for osgFX::Effect:
osg::Group osg::Node osg::Object osg::Referenced osgFX::AnisotropicLighting osgFX::BumpMapping osgFX::Cartoon osgFX::Outline osgFX::Scribe osgFX::SpecularHighlights

Public Types

enum  TechniqueSelection { AUTO_DETECT = -1 }
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 }

Public Member Functions

 Effect ()
 Effect (const Effect &copy, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
virtual bool isSameKindAs (const osg::Object *obj) const
virtual const char * libraryName () const
virtual const char * className () const
virtual const char * effectName () const =0
virtual const char * effectDescription () const =0
virtual const char * effectAuthor () const =0
bool getEnabled () const
void setEnabled (bool v)
virtual void setUpDemo ()
int getNumTechniques () const
TechniquegetTechnique (int i)
const TechniquegetTechnique (int i) const
int getSelectedTechnique () const
void selectTechnique (int i=AUTO_DETECT)
virtual void traverse (osg::NodeVisitor &nv)
void inherited_traverse (osg::NodeVisitor &nv)
virtual void resizeGLObjectBuffers (unsigned int maxSize)
virtual void releaseGLObjects (osg::State *state=0) const
Public Member Functions inherited from osg::Group
 Group ()
 Group (const Group &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
 META_Node (osg, Group)
virtual GroupasGroup ()
virtual const GroupasGroup () const
virtual bool addChild (Node *child)
template<class T>
bool addChild (const ref_ptr< T > &child)
virtual bool insertChild (unsigned int index, Node *child)
template<class T>
bool insertChild (unsigned int index, const ref_ptr< T > &child)
virtual bool removeChild (Node *child)
template<class T>
bool removeChild (const ref_ptr< T > &child)
bool removeChild (unsigned int pos, unsigned int numChildrenToRemove=1)
virtual bool removeChildren (unsigned int pos, unsigned int numChildrenToRemove)
virtual bool replaceChild (Node *origChild, Node *newChild)
template<class T, class R>
bool replaceChild (const ref_ptr< T > &origChild, const ref_ptr< R > &newChild)
virtual unsigned int getNumChildren () const
virtual bool setChild (unsigned int i, Node *node)
NodegetChild (unsigned int i)
const NodegetChild (unsigned int i) const
bool containsNode (const Node *node) const
template<class T>
bool containsNode (const ref_ptr< T > &node) const
unsigned int getChildIndex (const Node *node) const
virtual void setThreadSafeRefUnref (bool threadSafe)
virtual BoundingSphere computeBound () const
Public Member Functions inherited from osg::Node
 Node ()
 Node (const Node &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
virtual ObjectcloneType () const
virtual Objectclone (const CopyOp &copyop) const
virtual NodeasNode ()
virtual const NodeasNode () const
virtual DrawableasDrawable ()
virtual const DrawableasDrawable () const
virtual GeometryasGeometry ()
virtual const GeometryasGeometry () const
virtual TransformasTransform ()
virtual const TransformasTransform () const
virtual SwitchasSwitch ()
virtual const SwitchasSwitch () const
virtual GeodeasGeode ()
virtual const GeodeasGeode () const
virtual osgTerrain::TerrainasTerrain ()
virtual const osgTerrain::TerrainasTerrain () const
virtual void accept (NodeVisitor &nv)
virtual void ascend (NodeVisitor &nv)
const ParentListgetParents () const
ParentList getParents ()
GroupgetParent (unsigned int i)
const GroupgetParent (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)
CallbackgetUpdateCallback ()
const CallbackgetUpdateCallback () 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)
CallbackgetEventCallback ()
const CallbackgetEventCallback () 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)
CallbackgetCullCallback ()
const CallbackgetCullCallback () 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::StateSetgetOrCreateStateSet ()
osg::StateSetgetStateSet ()
const osg::StateSetgetStateSet () const
void setDescriptions (const DescriptionList &descriptions)
DescriptionListgetDescriptions ()
const DescriptionListgetDescriptions () 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 BoundingSpheregetInitialBound () const
void dirtyBound ()
const BoundingSpheregetBound () const
void setComputeBoundingSphereCallback (ComputeBoundingSphereCallback *callback)
template<class T>
void setComputeBoundingSphereCallback (const ref_ptr< T > &callback)
ComputeBoundingSphereCallbackgetComputeBoundingSphereCallback ()
const ComputeBoundingSphereCallbackgetComputeBoundingSphereCallback () 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 NodeVisitorasNodeVisitor ()
virtual const NodeVisitorasNodeVisitor () const
virtual StateSetasStateSet ()
virtual const StateSetasStateSet () const
virtual StateAttributeasStateAttribute ()
virtual const StateAttributeasStateAttribute () const
virtual UniformasUniform ()
virtual const UniformasUniform () const
virtual CameraasCamera ()
virtual const CameraasCamera () const
virtual CallbackasCallback ()
virtual const CallbackasCallback () const
virtual CallbackObjectasCallbackObject ()
virtual const CallbackObjectasCallbackObject () const
virtual UserDataContainerasUserDataContainer ()
virtual const UserDataContainerasUserDataContainer () const
virtual ValueObjectasValueObject ()
virtual const ValueObjectasValueObject () const
virtual ImageasImage ()
virtual const ImageasImage () 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
virtual void computeDataVariance ()
void setUserDataContainer (osg::UserDataContainer *udc)
template<class T>
void setUserDataContainer (const ref_ptr< T > &udc)
osg::UserDataContainergetUserDataContainer ()
const osg::UserDataContainergetUserDataContainer () const
osg::UserDataContainergetOrCreateUserDataContainer ()
virtual void setUserData (Referenced *obj)
template<class T>
void setUserData (const ref_ptr< T > &ud)
virtual ReferencedgetUserData ()
virtual const ReferencedgetUserData () 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 &)
Referencedoperator= (const Referenced &)
bool getThreadSafeRefUnref () const
OpenThreads::MutexgetRefMutex () const
int ref () const
int unref () const
int unref_nodelete () const
int referenceCount () const
ObserverSetgetObserverSet () const
ObserverSetgetOrCreateObserverSet () const
void addObserver (Observer *observer) const
void removeObserver (Observer *observer) const

Protected Member Functions

virtual ~Effect ()
Effectoperator= (const Effect &)
void dirtyTechniques ()
void addTechnique (Technique *tech)
virtual bool define_techniques ()=0
Protected Member Functions inherited from osg::Group
virtual ~Group ()
virtual void childRemoved (unsigned int, unsigned int)
virtual void childInserted (unsigned int)
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

Friends

class Validator

Additional Inherited Members

Static Public Member Functions inherited from osg::Referenced
static OpenThreads::MutexgetGlobalReferencedMutex ()
static void setDeleteHandler (DeleteHandler *handler)
static DeleteHandlergetDeleteHandler ()
Protected Attributes inherited from osg::Group
NodeList _children
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

Detailed Description

The base class for special effects. An effect is basically a collection of state attributes and an interface for configuring them in a predefined fashion. The Effect class does more however, as it handles multipass rendering transparently and it allows more than one "technique" to be defined. Each technique tries to implement the effect in a different way, often using different OpenGL extensions. The active technique can be selected either manually, with selectTechnique(), or automatically, in which case the first technique that is supported by all active rendering contexts is chosen. If you are an Effect user, then simply use it as a node group. Create an instance of your desired effect, add it to your scene graph and call its addChild() method to add a child node as you would do with a Group. If you are an Effect developer, you will have to implement the method define_techniques() to define the different techniques that can be used for obtaining the desired effect. In define_techniques() you will usually create one or more instances of custom classes derived from Technique and you will add them to the effect with addTechnique(). The order is important: techniques added first will have higher priority and will be used first as soon as all rendering contexts support it.

Member Enumeration Documentation

◆ TechniqueSelection

Enumerator
AUTO_DETECT 

Constructor & Destructor Documentation

◆ Effect() [1/2]

osgFX::Effect::Effect ( )

◆ Effect() [2/2]

osgFX::Effect::Effect ( const Effect & copy,
const osg::CopyOp & copyop = osg::CopyOp::SHALLOW_COPY )

◆ ~Effect()

virtual osgFX::Effect::~Effect ( )
protectedvirtual

Member Function Documentation

◆ addTechnique()

void osgFX::Effect::addTechnique ( Technique * tech)
inlineprotected

add a technique to the Effect

◆ className()

virtual const char * osgFX::Effect::className ( ) const
inlinevirtual

return the name of the node's class type.

Reimplemented from osg::Node.

◆ define_techniques()

virtual bool osgFX::Effect::define_techniques ( )
protectedpure virtual

abstract method to be implemented in derived classes; its purpose if to create the techniques that can be used for obtaining the desired effect. You will usually call addTechnique() inside this method.

Implemented in osgFX::AnisotropicLighting, osgFX::BumpMapping, osgFX::Cartoon, osgFX::Outline, osgFX::Scribe, and osgFX::SpecularHighlights.

◆ dirtyTechniques()

◆ effectAuthor()

virtual const char * osgFX::Effect::effectAuthor ( ) const
pure virtual

get the effect author's name

References getEnabled(), and setEnabled().

◆ effectDescription()

virtual const char * osgFX::Effect::effectDescription ( ) const
pure virtual

get a brief description of this Effect

◆ effectName()

virtual const char * osgFX::Effect::effectName ( ) const
pure virtual

◆ getEnabled()

bool osgFX::Effect::getEnabled ( ) const
inline

get whether the effect is enabled or not

Referenced by effectAuthor().

◆ getNumTechniques()

int osgFX::Effect::getNumTechniques ( ) const
inline

get the number of techniques defined for this Effect

◆ getSelectedTechnique()

int osgFX::Effect::getSelectedTechnique ( ) const
inline

get the index of the currently selected Technique

◆ getTechnique() [1/2]

Technique * osgFX::Effect::getTechnique ( int i)
inline

get the i-th Technique

◆ getTechnique() [2/2]

const Technique * osgFX::Effect::getTechnique ( int i) const
inline

get the i-th const Technique

◆ inherited_traverse()

void osgFX::Effect::inherited_traverse ( osg::NodeVisitor & nv)
inline

default traversal

Referenced by traverse().

◆ isSameKindAs()

virtual bool osgFX::Effect::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 Effect(), and NULL.

◆ libraryName()

virtual const char * osgFX::Effect::libraryName ( ) const
inlinevirtual

return the name of the node's library.

Reimplemented from osg::Node.

◆ operator=()

Effect & osgFX::Effect::operator= ( const Effect & )
inlineprotected

References Effect().

◆ releaseGLObjects()

virtual void osgFX::Effect::releaseGLObjects ( osg::State * = 0) const
virtual

If State is non-zero, this function releases any associated OpenGL objects for the specified graphics context. Otherwise, releases OpenGL objects for all graphics contexts.

Reimplemented from osg::Group.

◆ resizeGLObjectBuffers()

virtual void osgFX::Effect::resizeGLObjectBuffers ( unsigned int maxSize)
virtual

Resize any per context GLObject buffers to specified size.

Reimplemented from osg::Group.

◆ selectTechnique()

void osgFX::Effect::selectTechnique ( int i = AUTO_DETECT)
inline

select a technique or enable automatic detection

◆ setEnabled()

void osgFX::Effect::setEnabled ( bool v)
inline

set whether the effect is enabled or not

Referenced by effectAuthor().

◆ setUpDemo()

virtual void osgFX::Effect::setUpDemo ( )
inlinevirtual

optional: set effect parameters to produce a visually significant result to be used in demo applications like osgfxbrowser. Default is to do nothing.

Reimplemented in osgFX::BumpMapping.

◆ traverse()

virtual void osgFX::Effect::traverse ( osg::NodeVisitor & nv)
virtual

custom traversal

Reimplemented from osg::Group.

References inherited_traverse().

◆ Validator

friend class Validator
friend

References Validator.

Referenced by Validator.


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