SoGLTextureMatrixElement.3coin3 - Man Page

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

Synopsis

#include <Inventor/elements/SoGLTextureMatrixElement.h>

Inherits SoTextureMatrixElement.

Public Member Functions

virtual void init (SoState *state)
virtual void pop (SoState *state, const SoElement *prevTopElement)
virtual void setElt (const SbMatrix &matrix)
virtual void makeEltIdentity (void)
virtual void multElt (const SbMatrix &matrix)
virtual void translateEltBy (const SbVec3f &translation)
virtual void rotateEltBy (const SbRotation &translation)
virtual void scaleEltBy (const SbVec3f &scaleFactor)

Public Member Functions inherited from SoTextureMatrixElement
virtual void push (SoState *state)

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 void setEltIdentity (void)

Static Public Member Functions inherited from SoTextureMatrixElement
static SoType getClassTypeId (void)
static int getClassStackIndex (void)
static void * createInstance (void)
static void initClass (void)
static void makeIdentity (SoState *const state, SoNode *const node)
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 const SbMatrix & get (SoState *const state)
static void emptyMatrix (SoState *const state)

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 ~SoGLTextureMatrixElement ()

Protected Member Functions inherited from SoTextureMatrixElement
virtual ~SoTextureMatrixElement ()
virtual const SbMatrix & getElt (void) 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 SoTextureMatrixElement
SbMatrix textureMatrix

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 SoGLTextureMatrixElement 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

SoGLTextureMatrixElement::~SoGLTextureMatrixElement (void) [protected], [virtual]

The destructor.

Member Function Documentation

void * SoGLTextureMatrixElement::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 SoGLTextureMatrixElement::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 SoTextureMatrixElement.

void SoGLTextureMatrixElement::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 SoGLTextureMatrixElement::setElt (const SbMatrix & matrix) [virtual]

virtual method which is called from set(). Sets the texture matrix to matrix.

This method is an extension versus the Open Inventor API.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::makeEltIdentity (void) [virtual]

virtual method which is called from makeIdentity(). Sets element matrix to identity.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::multElt (const SbMatrix & matrix) [virtual]

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

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::translateEltBy (const SbVec3f & translation) [virtual]

virtual method which is called from translateBy(). Appends translation to the element matrix.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::rotateEltBy (const SbRotation & rotation) [virtual]

virtual method which is called from rotateBy(). Appends rotation to the element matrix.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::scaleEltBy (const SbVec3f & scaleFactor) [virtual]

virtual method which is called from scaleBy(). Append scaleFactor to the element matrix.

Reimplemented from SoTextureMatrixElement.

Author

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