OpenSceneGraph
Public Member Functions | Protected Member Functions | List of all members
osgUtil::HalfWayMapGenerator Class Reference

This cube map generator produces an Half-way vector map, useful for hardware-based specular lighting effects. More...

Inheritance diagram for osgUtil::HalfWayMapGenerator:
Inheritance graph
[legend]

Public Member Functions

 HalfWayMapGenerator (const osg::Vec3 &light_direction, int texture_size=64)
 
 HalfWayMapGenerator (const HalfWayMapGenerator &copy, const osg::CopyOp &copyop)
 
- Public Member Functions inherited from osgUtil::CubeMapGenerator
 CubeMapGenerator (int texture_size=64)
 
 CubeMapGenerator (const CubeMapGenerator &copy, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
 
osg::ImagegetImage (osg::TextureCubeMap::Face face)
 
const osg::ImagegetImage (osg::TextureCubeMap::Face face) const
 
void generateMap (bool use_osg_system=true)
 Generate the six cube images. More...
 
- Public Member Functions inherited from osg::Referenced
 Referenced ()
 
 Referenced (bool threadSafeRefUnref)
 Deprecated, Referenced is now always uses thread safe ref/unref, use default Referenced() constructor instead. More...
 
 Referenced (const Referenced &)
 
Referencedoperator= (const Referenced &)
 
virtual void setThreadSafeRefUnref (bool)
 Deprecated, Referenced is always theadsafe so there method now has no effect and does not need to be called. More...
 
bool getThreadSafeRefUnref () const
 Get whether a mutex is used to ensure ref() and unref() are thread safe. More...
 
OpenThreads::MutexgetRefMutex () 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...
 
ObserverSetgetObserverSet () const
 Get the ObserverSet if one is attached, otherwise return NULL. More...
 
ObserverSetgetOrCreateObserverSet () 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 Member Functions

virtual ~HalfWayMapGenerator ()
 
HalfWayMapGeneratoroperator= (const HalfWayMapGenerator &)
 
virtual osg::Vec4 compute_color (const osg::Vec3 &R) const
 Override this method to define how colors are computed. More...
 
- Protected Member Functions inherited from osgUtil::CubeMapGenerator
virtual ~CubeMapGenerator ()
 
CubeMapGeneratoroperator= (const CubeMapGenerator &)
 
void set_pixel (int index, int c, int r, const osg::Vec4 &color)
 
- Protected Member Functions inherited from osg::Referenced
virtual ~Referenced ()
 
void signalObserversAndDelete (bool signalDelete, bool doDelete) const
 
void deleteUsingDeleteHandler () const
 

Additional Inherited Members

- Static Public Member Functions inherited from osg::Referenced
static OpenThreads::MutexgetGlobalReferencedMutex ()
 Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More...
 
static void setDeleteHandler (DeleteHandler *handler)
 Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More...
 
static DeleteHandlergetDeleteHandler ()
 Get a DeleteHandler. More...
 
- Static Protected Member Functions inherited from osgUtil::CubeMapGenerator
static osg::Vec4 vector_to_color (const osg::Vec3 &vec)
 
- Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr _observerSet
 
OpenThreads::Atomic _refCount
 

Detailed Description

This cube map generator produces an Half-way vector map, useful for hardware-based specular lighting effects.

It computes: C = normalize(R - L), where C is the resulting color, R is the reflection vector and L is the light direction.

Constructor & Destructor Documentation

◆ HalfWayMapGenerator() [1/2]

osgUtil::HalfWayMapGenerator::HalfWayMapGenerator ( const osg::Vec3 light_direction,
int  texture_size = 64 
)

◆ HalfWayMapGenerator() [2/2]

osgUtil::HalfWayMapGenerator::HalfWayMapGenerator ( const HalfWayMapGenerator copy,
const osg::CopyOp copyop 
)

◆ ~HalfWayMapGenerator()

virtual osgUtil::HalfWayMapGenerator::~HalfWayMapGenerator ( )
inlineprotectedvirtual

Member Function Documentation

◆ compute_color()

osg::Vec4 osgUtil::HalfWayMapGenerator::compute_color ( const osg::Vec3 R) const
inlineprotectedvirtual

Override this method to define how colors are computed.

The parameter R is the reflection vector, pointing from the center of the cube. The return value should be the RGBA color associated with that reflection ray.

Implements osgUtil::CubeMapGenerator.

References osg::Vec3f::length().

◆ operator=()

HalfWayMapGenerator& osgUtil::HalfWayMapGenerator::operator= ( const HalfWayMapGenerator )
inlineprotected

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