osg::TexGen Class Reference

TexGen encapsulates the OpenGL glTexGen (texture coordinate generation) state. More...

Inheritance diagram for osg::TexGen:

[legend]

List of all members.

Public Types
enum	Mode {   OBJECT_LINEAR = GL_OBJECT_LINEAR, EYE_LINEAR = GL_EYE_LINEAR, SPHERE_MAP = GL_SPHERE_MAP, NORMAL_MAP = GL_NORMAL_MAP_ARB,   REFLECTION_MAP = GL_REFLECTION_MAP_ARB }
enum	Coord { S, T, R, Q }
Public Member Functions
	TexGen ()
	TexGen (const TexGen &texgen, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, TexGen, TEXGEN)
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.
virtual bool	getModeUsage (StateAttribute::ModeUsage &usage) const
	Return the modes associated with this StateAttribute.
virtual void	apply (State &state) const
	apply the OpenGL state attributes.
void	setMode (Mode mode)
Mode	getMode () const
void	setPlane (Coord which, const Plane &plane)
Plane &	getPlane (Coord which)
const Plane &	getPlane (Coord which) const
void	setPlanesFromMatrix (const Matrixd &matrix)
	Set the tex gen planes from specified matrix.
Protected Member Functions
virtual	~TexGen (void)
Protected Attributes
Mode	_mode
Plane	_plane_s
	Additional texgen coefficents for GL_OBJECT_PLANE or GL_EYE_PLANE,.
Plane	_plane_t
Plane	_plane_r
Plane	_plane_q

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Detailed Description

TexGen encapsulates the OpenGL glTexGen (texture coordinate generation) state.

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Member Enumeration Documentation

enum osg::TexGen::Mode

Enumerator:

OBJECT_LINEAR
EYE_LINEAR
SPHERE_MAP
NORMAL_MAP
REFLECTION_MAP

enum osg::TexGen::Coord

Enumerator:

S
T
R
Q

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Constructor & Destructor Documentation

osg::TexGen::TexGen

(

)

osg::TexGen::TexGen	(	const TexGen &	texgen,
		const CopyOp &	copyop = CopyOp::SHALLOW_COPY
	)			[inline]

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::TexGen::~TexGen

(

void

)

[protected, virtual]

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Member Function Documentation

osg::TexGen::META_StateAttribute	(	osg	,
		TexGen	,
		TEXGEN
	)

virtual bool osg::TexGen::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::TexGen::compare

(

const StateAttribute &

sa

)

const [inline, virtual]

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

Implements osg::StateAttribute.

virtual bool osg::TexGen::getModeUsage

(

StateAttribute::ModeUsage &

)

const [inline, virtual]

Return the modes associated with this StateAttribute.

Reimplemented from osg::StateAttribute.

virtual void osg::TexGen::apply

(

State &

)

const [virtual]

apply the OpenGL state attributes.

The render info for the current OpenGL context is passed in to allow the StateAttribute to obtain details on the the current context and state.

Reimplemented from osg::StateAttribute.

void osg::TexGen::setMode

(

Mode

mode

)

[inline]

Mode osg::TexGen::getMode

(

)

const [inline]

void osg::TexGen::setPlane	(	Coord	which,
		const Plane &	plane
	)

Plane& osg::TexGen::getPlane

(

Coord

which

)

const Plane& osg::TexGen::getPlane

(

Coord

which

)

const

void osg::TexGen::setPlanesFromMatrix

(

const Matrixd &

matrix

)

Set the tex gen planes from specified matrix.

Typical usage would be to pass in a projection matrix to set up projective texturing.

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Member Data Documentation

Mode osg::TexGen::_mode [protected]

Plane osg::TexGen::_plane_s [protected]

Additional texgen coefficents for GL_OBJECT_PLANE or GL_EYE_PLANE,.

Plane osg::TexGen::_plane_t [protected]

Plane osg::TexGen::_plane_r [protected]

Plane osg::TexGen::_plane_q [protected]

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

• TexGen

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