SoGLMultiTextureMatrixElement Class Reference
Element Classes

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 | 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
virtual | ~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< SbUniqueId > | 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::~SoGLMultiTextureMatrixElement | ( | void |  | ) |

protected virtual

Destructor.

## Member Function Documentation

## getClassTypeId()

SoType SoGLMultiTextureMatrixElement::getClassTypeId | ( | void |  | ) |

static

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

## getClassStackIndex()

int SoGLMultiTextureMatrixElement::getClassStackIndex | ( | void |  | ) |

static

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

## 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.

## initClass()

void SoGLMultiTextureMatrixElement::initClass | ( | void |  | ) |

static

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

## 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.

## 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.

## 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.

## 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.

## 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.

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

- SoGLMultiTextureMatrixElement.h
- SoGLMultiTextureMatrixElement.cpp