opencover::coTangentSpaceGenerator Class Reference

#include <coVRShader.h>

Inheritance diagram for opencover::coTangentSpaceGenerator:

Collaboration diagram for opencover::coTangentSpaceGenerator:

Public Member Functions
	coTangentSpaceGenerator ()
	coTangentSpaceGenerator (const coTangentSpaceGenerator &copy, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
void	generate (osg::Geometry *geo)
osg::Vec4Array *	getTangentArray ()
const osg::Vec4Array *	getTangentArray () const
void	setTangentArray (osg::Vec4Array *array)
osg::Vec4Array *	getNormalArray ()
const osg::Vec4Array *	getNormalArray () const
void	setNormalArray (osg::Vec4Array *array)
osg::Vec4Array *	getBinormalArray ()
const osg::Vec4Array *	getBinormalArray () const
void	setBinormalArray (osg::Vec4Array *array)
osg::IndexArray *	getIndices ()

Protected Member Functions
virtual	~coTangentSpaceGenerator ()
coTangentSpaceGenerator &	operator= (const coTangentSpaceGenerator &)
void	compute (osg::PrimitiveSet *pset, const osg::Array *vx, const osg::Array *nx, int iA, int iB, int iC)

Protected Attributes
osg::ref_ptr< osg::Vec4Array >	T_
osg::ref_ptr< osg::Vec4Array >	B_
osg::ref_ptr< osg::Vec4Array >	N_
osg::ref_ptr< osg::UIntArray >	indices_

Detailed Description

The coTangentSpaceGenerator 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; then you can retrieve the TBN arrays by calling getTangentArray(), getNormalArray() and getBinormalArray() methods.

Constructor & Destructor Documentation

coTangentSpaceGenerator() [1/2]

opencover::coTangentSpaceGenerator::coTangentSpaceGenerator

(

)

coTangentSpaceGenerator() [2/2]

opencover::coTangentSpaceGenerator::coTangentSpaceGenerator	(	const coTangentSpaceGenerator &	copy,
		const osg::CopyOp &	copyop = osg::CopyOp::SHALLOW_COPY
	)

~coTangentSpaceGenerator()

virtual opencover::coTangentSpaceGenerator::~coTangentSpaceGenerator ( )

inlineprotectedvirtual

Member Function Documentation

compute()

void opencover::coTangentSpaceGenerator::compute ( osg::PrimitiveSet *  pset, const osg::Array *  vx, const osg::Array *  nx, int  iA, int  iB, int  iC  )

protected

generate()

void opencover::coTangentSpaceGenerator::generate

(

osg::Geometry *

geo

)

getBinormalArray() [1/2]

osg::Vec4Array * opencover::coTangentSpaceGenerator::getBinormalArray ( )

inline

getBinormalArray() [2/2]

const osg::Vec4Array * opencover::coTangentSpaceGenerator::getBinormalArray ( ) const

inline

getIndices()

osg::IndexArray * opencover::coTangentSpaceGenerator::getIndices ( )

inline

getNormalArray() [1/2]

osg::Vec4Array * opencover::coTangentSpaceGenerator::getNormalArray ( )

inline

getNormalArray() [2/2]

const osg::Vec4Array * opencover::coTangentSpaceGenerator::getNormalArray ( ) const

inline

getTangentArray() [1/2]

osg::Vec4Array * opencover::coTangentSpaceGenerator::getTangentArray ( )

inline

getTangentArray() [2/2]

const osg::Vec4Array * opencover::coTangentSpaceGenerator::getTangentArray ( ) const

inline

operator=()

coTangentSpaceGenerator & opencover::coTangentSpaceGenerator::operator= ( const coTangentSpaceGenerator &  )

inlineprotected

setBinormalArray()

void opencover::coTangentSpaceGenerator::setBinormalArray ( osg::Vec4Array *  array )

inline

setNormalArray()

void opencover::coTangentSpaceGenerator::setNormalArray ( osg::Vec4Array *  array )

inline

setTangentArray()

void opencover::coTangentSpaceGenerator::setTangentArray ( osg::Vec4Array *  array )

inline

Member Data Documentation

B_

osg::ref_ptr<osg::Vec4Array> opencover::coTangentSpaceGenerator::B_

protected

indices_

osg::ref_ptr<osg::UIntArray> opencover::coTangentSpaceGenerator::indices_

protected

N_

osg::ref_ptr<osg::Vec4Array> opencover::coTangentSpaceGenerator::N_

protected

T_

osg::ref_ptr<osg::Vec4Array> opencover::coTangentSpaceGenerator::T_

protected

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

• cover/coVRShader.h