osg::TexMat Class Reference

A texture matrix state class that encapsulates OpenGL texture matrix functionality. More...

Inheritance diagram for osg::TexMat:

[legend]

List of all members.

Public Member Functions
	TexMat ()
	TexMat (const Matrix &matrix)
	TexMat (const TexMat &texmat, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, TexMat, TEXMAT)
virtual bool	isTextureAttribute () const
	Return true if StateAttribute is a type which controls texturing and needs to be issued w.r.t to specific texture unit.
virtual int	compare (const StateAttribute &sa) const
	Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.
void	setMatrix (const Matrix &matrix)
	Set the texture matrix.
Matrix &	getMatrix ()
	Get the texture matrix.
const Matrix &	getMatrix () const
	Get the const texture matrix.
void	setScaleByTextureRectangleSize (bool flag)
	Switch on/off the post scaling of the TexMat matrix by the size of the last applied texture rectangle.
bool	getScaleByTextureRectangleSize () const
	Get whether the post scaling of the TexMat matrix, by the size of the last applied texture rectangle, is switched on/off.
virtual void	apply (State &state) const
	Apply texture matrix to OpenGL state.
Protected Member Functions
virtual	~TexMat (void)
Protected Attributes
Matrix	_matrix
bool	_scaleByTextureRectangleSize

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Detailed Description

A texture matrix state class that encapsulates OpenGL texture matrix functionality.

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Constructor & Destructor Documentation

osg::TexMat::TexMat

(

)

osg::TexMat::TexMat

(

const Matrix &

matrix

)

[inline]

osg::TexMat::TexMat	(	const TexMat &	texmat,
		const CopyOp &	copyop = CopyOp::SHALLOW_COPY
	)			[inline]

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::TexMat::~TexMat

(

void

)

[protected, virtual]

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Member Function Documentation

osg::TexMat::META_StateAttribute	(	osg	,
		TexMat	,
		TEXMAT
	)

virtual bool osg::TexMat::isTextureAttribute

(

)

const [inline, virtual]

Return true if StateAttribute is a type which controls texturing and needs to be issued w.r.t to specific texture unit.

Reimplemented from osg::StateAttribute.

virtual int osg::TexMat::compare

(

const StateAttribute &

sa

)

const [inline, virtual]

Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.

Implements osg::StateAttribute.

void osg::TexMat::setMatrix

(

const Matrix &

matrix

)

[inline]

Set the texture matrix.

Matrix& osg::TexMat::getMatrix

(

)

[inline]

Get the texture matrix.

const Matrix& osg::TexMat::getMatrix

(

)

const [inline]

Get the const texture matrix.

void osg::TexMat::setScaleByTextureRectangleSize

(

bool

flag

)

[inline]

Switch on/off the post scaling of the TexMat matrix by the size of the last applied texture rectangle.

Use a TexMat alongside a TextureRectangle with this scaling applied allows one to treat a TextureRectnagles texture coordinate range as if it were the usual non dimensional 0.0 to 1.0 range. Note, the TexMat matrix itself is not modified by the post scaling, its purely an operation passed to OpenGL to do the post scaling once the the TexMat matrix has been loaded.

bool osg::TexMat::getScaleByTextureRectangleSize

(

)

const [inline]

Get whether the post scaling of the TexMat matrix, by the size of the last applied texture rectangle, is switched on/off.

virtual void osg::TexMat::apply

(

State &

state

)

const [virtual]

Apply texture matrix to OpenGL state.

Reimplemented from osg::StateAttribute.

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Member Data Documentation

Matrix osg::TexMat::_matrix [protected]

bool osg::TexMat::_scaleByTextureRectangleSize [protected]

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

• TexMat

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