SoGLMultiTextureMatrixElement Class Reference

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. More...

#include <Inventor/elements/SoGLMultiTextureMatrixElement.h>

Inheritance diagram for SoGLMultiTextureMatrixElement:

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

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

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

Additional Inherited Members
Static Protected Member Functions inherited from SoElement
static SoElement *	getElement (SoState *const state, const int stackIndex)
static const SoElement *	getConstElement (SoState *const state, const int stackIndex)
static int	createStackIndex (const SoType id)
Protected Attributes inherited from SoAccumulatedElement
SbList< uint32_t >	nodeIds
Protected Attributes inherited from SoElement
SoType	typeId
int	stackIndex
int	depth
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 ( void  )

protectedvirtual

The destructor.

Member Function Documentation

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.

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.

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.

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

virtual

This method is callled 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.

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.

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

virtual

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

Reimplemented from SoMultiTextureMatrixElement.

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

• SoGLMultiTextureMatrixElement.h
• SoGLMultiTextureMatrixElement.cpp