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SoDirectionalLight Class Reference

The SoDirectionalLight class is a node type for specifying directional light sources. More...

#include <Inventor/nodes/SoDirectionalLight.h>

Inheritance diagram for SoDirectionalLight::

SoLight SoNode SoFieldContainer SoBase SoDirectionalLightManip List of all members.

Public Methods

 SoDirectionalLight (void)
virtual void GLRender (SoGLRenderAction *action)

Static Public Methods

void initClass (void)

Public Attributes

SoSFVec3f direction

Protected Methods

virtual ~SoDirectionalLight ()

Detailed Description

The SoDirectionalLight class is a node type for specifying directional light sources.

A directional light source provides a model of light sources which are at infinite distance from the geometry it illuminates, thereby having no set position and consisting of an infinite volume of parallel rays.

This is of course a simplified model of far-away light sources, as "infinite distance" is impossible.

The sun shining on objects on earth is a good example of something which can be modeled rather well for the most common purposes with a directional light source.

See also documentation of parent class for important information regarding light sources in general.


Constructor & Destructor Documentation

SoDirectionalLight::SoDirectionalLight void
 

Constructor.

SoDirectionalLight::~SoDirectionalLight [protected, virtual]
 

Destructor.


Member Function Documentation

void SoDirectionalLight::initClass void [static]
 

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoLight.

Reimplemented in SoDirectionalLightManip.

void SoDirectionalLight::GLRender SoGLRenderAction * action [virtual]
 

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoNode.

Reimplemented in SoDirectionalLightManip.


Member Data Documentation

SoSFVec3f SoDirectionalLight::direction
 

The direction of the light source. Defaults to pointing along the negative z-axis.


The documentation for this class was generated from the following files:
Generated at Tue Mar 5 03:31:23 2002 for Coin by doxygen1.2.9 written by Dimitri van Heesch, © 1997-2001