openscenegraph
Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
osgUtil::TangentSpaceGenerator Class Reference

#include <TangentSpaceGenerator>

Inheritance diagram for osgUtil::TangentSpaceGenerator:
osg::Referenced

Public Member Functions

 TangentSpaceGenerator ()
 
 TangentSpaceGenerator (const TangentSpaceGenerator &copy, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
 
void generate (osg::Geometry *geo, int normal_map_tex_unit=0)
 
osg::Vec4ArraygetTangentArray ()
 
const osg::Vec4ArraygetTangentArray () const
 
void setTangentArray (osg::Vec4Array *array)
 
osg::Vec4ArraygetNormalArray ()
 
const osg::Vec4ArraygetNormalArray () const
 
void setNormalArray (osg::Vec4Array *array)
 
osg::Vec4ArraygetBinormalArray ()
 
const osg::Vec4ArraygetBinormalArray () const
 
void setBinormalArray (osg::Vec4Array *array)
 
osg::IndexArraygetIndices ()
 
- Public Member Functions inherited from osg::Referenced
 Referenced ()
 
 Referenced (bool threadSafeRefUnref)
 
 Referenced (const Referenced &)
 
Referencedoperator= (const Referenced &)
 
virtual void setThreadSafeRefUnref (bool)
 
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 ~TangentSpaceGenerator ()
 
TangentSpaceGeneratoroperator= (const TangentSpaceGenerator &)
 
void compute (osg::PrimitiveSet *pset, const osg::Array *vx, const osg::Array *nx, const osg::Array *tx, int iA, int iB, int iC)
 
- Protected Member Functions inherited from osg::Referenced
virtual ~Referenced ()
 
void signalObserversAndDelete (bool signalDelete, bool doDelete) const
 
void deleteUsingDeleteHandler () const
 

Protected Attributes

osg::ref_ptr< osg::Vec4ArrayT_
 
osg::ref_ptr< osg::Vec4ArrayB_
 
osg::ref_ptr< osg::Vec4ArrayN_
 
osg::ref_ptr< osg::UIntArrayindices_
 
- Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr _observerSet
 
OpenThreads::Atomic _refCount
 

Additional Inherited Members

- Static Public Member Functions inherited from osg::Referenced
static OpenThreads::MutexgetGlobalReferencedMutex ()
 
static void setDeleteHandler (DeleteHandler *handler)
 
static DeleteHandlergetDeleteHandler ()
 

Detailed Description

The TangentSpaceGenerator class generates three arrays containing tangent-space basis vectors. It takes a texture-mapped Geometry object as input, traverses its primitive sets and computes Tangent, Normal and Binormal vectors for each vertex, storing them into arrays. The resulting arrays can be used as vertex program varying (per-vertex) parameters, enabling advanced effects like bump-mapping. To use this class, simply call the generate() method specifying the Geometry object you want to process and the texture unit that contains UV mapping for the normal map; then you can retrieve the TBN arrays by calling getTangentArray(), getNormalArray() and getBinormalArray() methods.

Constructor & Destructor Documentation

◆ TangentSpaceGenerator() [1/2]

osgUtil::TangentSpaceGenerator::TangentSpaceGenerator ( )

◆ TangentSpaceGenerator() [2/2]

osgUtil::TangentSpaceGenerator::TangentSpaceGenerator ( const TangentSpaceGenerator copy,
const osg::CopyOp copyop = osg::CopyOp::SHALLOW_COPY 
)

◆ ~TangentSpaceGenerator()

virtual osgUtil::TangentSpaceGenerator::~TangentSpaceGenerator ( )
inlineprotectedvirtual

Member Function Documentation

◆ compute()

void osgUtil::TangentSpaceGenerator::compute ( osg::PrimitiveSet pset,
const osg::Array vx,
const osg::Array nx,
const osg::Array tx,
int  iA,
int  iB,
int  iC 
)
protected

◆ generate()

void osgUtil::TangentSpaceGenerator::generate ( osg::Geometry geo,
int  normal_map_tex_unit = 0 
)

◆ getBinormalArray() [1/2]

osg::Vec4Array * osgUtil::TangentSpaceGenerator::getBinormalArray ( )
inline

◆ getBinormalArray() [2/2]

const osg::Vec4Array * osgUtil::TangentSpaceGenerator::getBinormalArray ( ) const
inline

◆ getIndices()

osg::IndexArray * osgUtil::TangentSpaceGenerator::getIndices ( )
inline

◆ getNormalArray() [1/2]

osg::Vec4Array * osgUtil::TangentSpaceGenerator::getNormalArray ( )
inline

◆ getNormalArray() [2/2]

const osg::Vec4Array * osgUtil::TangentSpaceGenerator::getNormalArray ( ) const
inline

◆ getTangentArray() [1/2]

osg::Vec4Array * osgUtil::TangentSpaceGenerator::getTangentArray ( )
inline

◆ getTangentArray() [2/2]

const osg::Vec4Array * osgUtil::TangentSpaceGenerator::getTangentArray ( ) const
inline

◆ operator=()

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

◆ setBinormalArray()

void osgUtil::TangentSpaceGenerator::setBinormalArray ( osg::Vec4Array array)
inline

◆ setNormalArray()

void osgUtil::TangentSpaceGenerator::setNormalArray ( osg::Vec4Array array)
inline

◆ setTangentArray()

void osgUtil::TangentSpaceGenerator::setTangentArray ( osg::Vec4Array array)
inline

Member Data Documentation

◆ B_

osg::ref_ptr<osg::Vec4Array> osgUtil::TangentSpaceGenerator::B_
protected

◆ indices_

osg::ref_ptr<osg::UIntArray> osgUtil::TangentSpaceGenerator::indices_
protected

◆ N_

osg::ref_ptr<osg::Vec4Array> osgUtil::TangentSpaceGenerator::N_
protected

◆ T_

osg::ref_ptr<osg::Vec4Array> osgUtil::TangentSpaceGenerator::T_
protected

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