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Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
SoLightElement Class Reference

The SoLightElement class manages the currently active light sources. More...

#include <Inventor/elements/SoLightElement.h>

Inheritance diagram for SoLightElement:
SoAccumulatedElement SoElement

List of all members.

Public Member Functions

virtual void init (SoState *state)
virtual void push (SoState *state)

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 SoNodeListgetLights (SoState *const state)
static const SbMatrixgetMatrix (SoState *const state, const int index)

Protected Member Functions

 SoLightElement (void)
virtual ~SoLightElement ()

Protected Attributes

SoNodeList lights
SbList< SbMatrix > * matrixlist

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

This static method returns the class type.

Reimplemented from SoAccumulatedElement.

int SoLightElement::getClassStackIndex ( void  ) [static]

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

Reimplemented from SoAccumulatedElement.

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::initClass ( void  ) [static]

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

Reimplemented from SoAccumulatedElement.

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

List of current light nodes.

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.


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

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