SoGLMultiTextureMatrixElement Class Reference

The SoGLMultiTextureMatrixElement class is used to update the OpenGL texture matrix. More...

#include <Inventor/elements/SoGLMultiTextureMatrixElement.h>

Inheritance diagram for SoGLMultiTextureMatrixElement:

Public Member Functions
virtual void	init (SoState *state)
virtual void	multElt (const int unit, const SbMatrix &matrix)
virtual void	pop (SoState *state, const SoElement *prevTopElement)
virtual void	push (SoState *state)
virtual void	setElt (const int unit, const SbMatrix &matrix)
Public Member Functions inherited from SoAccumulatedElement
virtual SbBool	matches (const SoElement *element) const
Public Member Functions inherited from SoElement
virtual	~SoElement ()
int	getDepth (void) const
int	getStackIndex (void) const
const SoType	getTypeId (void) const
virtual void	print (FILE *file=stdout) const
void	setDepth (const int depth)

Static Public Member Functions
static void *	createInstance (void)
static int	getClassStackIndex (void)
static SoType	getClassTypeId (void)
static void	initClass (void)
Static Public Member Functions inherited from SoMultiTextureMatrixElement
static void *	createInstance (void)
static const SbMatrix &	get (SoState *const state, const int unit=0)
static int	getClassStackIndex (void)
static SoType	getClassTypeId (void)
static void	initClass (void)
static void	makeIdentity (SoState *const state, SoNode *const node, const int unit=0)
static void	mult (SoState *const state, SoNode *const node, const int unit, const SbMatrix &matrix)
static void	mult (SoState *const state, SoNode *const node, const SbMatrix &matrix)
static void	rotateBy (SoState *const state, SoNode *const node, const SbRotation &rotation)
static void	scaleBy (SoState *const state, SoNode *const node, const SbVec3f &scaleFactor)
static void	set (SoState *const state, SoNode *const node, const int unit, const SbMatrix &matrix)
static void	set (SoState *const state, SoNode *const node, const SbMatrix &matrix)
static void	translateBy (SoState *const state, SoNode *const node, const SbVec3f &translation)
Static Public Member Functions inherited from SoAccumulatedElement
static int	getClassStackIndex (void)
static SoType	getClassTypeId (void)
static void	initClass (void)
Static Public Member Functions inherited from SoElement
static int	getClassStackIndex (void)
static SoType	getClassTypeId (void)
static SoType	getIdFromStackIndex (const int stackIndex)
static int	getNumStackIndices (void)
static void	initClass (void)
static void	initElements (void)

Protected Member Functions
virtual	~SoGLMultiTextureMatrixElement ()
Protected Member Functions inherited from SoMultiTextureMatrixElement
	SoMultiTextureMatrixElement (void)
virtual	~SoMultiTextureMatrixElement ()
virtual const SbMatrix &	getElt (const int unit) const
int	getNumUnits () const
UnitData &	getUnitData (const int unit)
const UnitData &	getUnitData (const int unit) const
Protected Member Functions inherited from SoAccumulatedElement
virtual	~SoAccumulatedElement ()
void	addNodeId (const SoNode *const node)
virtual void	captureThis (SoState *state) const
void	clearNodeIds (void)
virtual SoElement *	copyMatchInfo (void) const
void	copyNodeIds (const SoAccumulatedElement *copyfrom)
void	setNodeId (const SoNode *const node)
Protected Member Functions inherited from SoElement
	SoElement (void)
void	capture (SoState *const state) const
SoElement *	getNextFree (void) const
SoElement *	getNextInStack (void) const
void	setStackIndex (const int index)
void	setTypeId (const SoType typeId)

Additional Inherited Members
Static Protected Member Functions inherited from SoElement
static int	createStackIndex (const SoType id)
static const SoElement *	getConstElement (SoState *const state, const int stackIndex)
static SoElement *	getElement (SoState *const state, const int stackIndex)
Protected Attributes inherited from SoAccumulatedElement
SbList< SbUniqueId >	nodeIds
Protected Attributes inherited from SoElement
int	depth
int	stackIndex
SoType	typeId
Static Protected Attributes inherited from SoElement
static int	classStackIndex
static SoTypeList *	stackToType

Detailed Description

The SoGLMultiTextureMatrixElement class is used to update the OpenGL texture matrix.

Since (for some weird reason) most OpenGL implementations have a very small texture matrix stack, and since the matrix stack also is broken on many OpenGL implementations, the texture matrix is always loaded into OpenGL. We do not push() and pop() matrices.

Constructor & Destructor Documentation

~SoGLMultiTextureMatrixElement()

SoGLMultiTextureMatrixElement::~SoGLMultiTextureMatrixElement ( void )

protectedvirtual

Destructor.

Member Function Documentation

createInstance()

void * SoGLMultiTextureMatrixElement::createInstance ( void )

static

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Creates a new instance of the class type corresponding to the SoType object.

getClassStackIndex()

int SoGLMultiTextureMatrixElement::getClassStackIndex ( void )

static

This static method returns the state stack index for the class.

getClassTypeId()

SoType SoGLMultiTextureMatrixElement::getClassTypeId ( void )

static

This static method returns the SoType object associated with objects of this class.

init()

void SoGLMultiTextureMatrixElement::init ( SoState * state )

virtual

This function initializes the element type in the given SoState. It is called for the first element of each enabled element type in SoState objects.

Reimplemented from SoMultiTextureMatrixElement.

initClass()

void SoGLMultiTextureMatrixElement::initClass ( void )

static

Initialize relevant common data for all instances, like the type system.

multElt()

void SoGLMultiTextureMatrixElement::multElt ( const int unit, const SbMatrix & matrix )

virtual

virtual method which is called from mult(). Multiplies matrix into element matrix.

Reimplemented from SoMultiTextureMatrixElement.

pop()

void SoGLMultiTextureMatrixElement::pop ( SoState * state, const SoElement * prevTopElement )

virtual

This method is called when the state is popped, and the depth of the element is bigger than the current state depth. pop() is called on the new top of stack, and a pointer to the previous top of stack is passed in prevTopElement.

Override this method if you need to copy some state information from the previous top of stack.

Reimplemented from SoElement.

push()

void SoGLMultiTextureMatrixElement::push ( SoState * state )

virtual

This method is called every time a new element is required in one of the stacks. This happens when a writable element is requested, using SoState::getElement() or indirectly SoElement::getElement(), and the depth of the current element is less than the state depth.

Override this method if your element needs to copy data from the previous top of stack. The push() method is called on the new element, and the previous element can be found using SoElement::getNextInStack().

Reimplemented from SoMultiTextureMatrixElement.

setElt()

void SoGLMultiTextureMatrixElement::setElt ( const int unit, const SbMatrix & matrix )

virtual

virtual method which is called from set(). Sets matrix into element matrix.

Reimplemented from SoMultiTextureMatrixElement.

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

• SoGLMultiTextureMatrixElement.h
• SoGLMultiTextureMatrixElement.cpp