SoLightElement.3coin3 - Man Page

The SoLightElement class manages the currently active light sources.

Synopsis

#include <Inventor/elements/SoLightElement.h>

Inherits SoAccumulatedElement.

Public Member Functions

virtual void init (SoState *state)
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
virtual void init (SoState *state)
virtual void push (SoState *state)
virtual void pop (SoState *state, const SoElement *prevTopElement)
virtual SbBool matches (const SoElement *element) const =0
virtual SoElement * copyMatchInfo (void) const =0
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 add (SoState *const state, SoLight *const light, const SbMatrix &matrix)
static const SoNodeList & getLights (SoState *const state)
static const SbMatrix & getMatrix (SoState *const state, const int index)

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

SoLightElement (void)
virtual ~SoLightElement ()

Protected Member Functions inherited from SoAccumulatedElement
virtual void init (SoState *state)
virtual void push (SoState *state)
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
virtual void captureThis (SoState *state) const
void setTypeId (const SoType typeId)
void setStackIndex (const int index)
SoElement * getNextInStack (void) const
SoElement * getNextFree (void) const

Protected Attributes

SoNodeList lights
SbList< SbMatrix > * matrixlist

Protected Attributes inherited from SoAccumulatedElement
SbList< uint32_t > nodeIds

Protected Attributes inherited from SoElement
SoType typeId
int stackIndex
int depth

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)

Static Protected Attributes inherited from SoElement
static int classStackIndex
static SoTypeList * stackToType

Detailed Description

The SoLightElement class manages the currently active light sources.

Constructor & Destructor Documentation

SoLightElement::SoLightElement (void) [protected]

The constructor

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

The destructor.

Member Function Documentation

void * SoLightElement::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 SoLightElement::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 SoAccumulatedElement.

void SoLightElement::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 SoAccumulatedElement.

void SoLightElement::add (SoState *const state, SoLight *const light, const SbMatrix & matrix) [static]

Adds light to the list of active lights. matrix should transform the light from the world coordinate system to the view reference coordinate system.

const SoNodeList & SoLightElement::getLights (SoState *const state) [static]

Returns the list of light nodes.

const SbMatrix & SoLightElement::getMatrix (SoState *const state, const int index) [static]

Get matrix which transforms light index from the world coordinate system to the view reference system.

Member Data Documentation

SoLightElement::lights [protected]

List of current light nodes.

SoLightElement::matrixlist [protected]

List of matrices to map from world coordinates to view reference coordinates. To avoid getting a hugs element (sizeof), this list is only allocated in the bottom element, and the pointer to this list is passed along to the other elements.

Author

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Info

Wed Jan 18 2023 Version 3.1.3 Coin