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NAME

       SoVRMLDirectionalLight -

       The SoVRMLDirectionalLight class is a node type for specifying directional light sources

       The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC
       14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the
       Consortium:

SYNOPSIS

       #include <Inventor/VRMLnodes/SoVRMLDirectionalLight.h>

       Inherits SoVRMLLight.

   Public Member Functions
       SoVRMLDirectionalLight (void)
       virtual void GLRender (SoGLRenderAction *action)

   Static Public Member Functions
       static void initClass (void)

   Public Attributes
       SoSFVec3f direction

   Protected Member Functions
       virtual ~SoVRMLDirectionalLight ()

Detailed Description

       The SoVRMLDirectionalLight class is a node type for specifying directional light sources

       The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC
       14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the
       Consortium:

         DirectionalLight {
           exposedField SFFloat ambientIntensity  0        # [0,1]
           exposedField SFColor color             1 1 1    # [0,1]
           exposedField SFVec3f direction         0 0 -1   # (-inf,inf)
           exposedField SFFloat intensity         1        # [0,1]
           exposedField SFBool  on                TRUE
         }
         .fi

       The DirectionalLight node defines a directional light source that illuminates along rays parallel to a given 3-dimensional vector. A description of the ambientIntensity, color, intensity, and on fields is in 4.6.6, Light sources (<http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.6>).

       The direction field specifies the direction vector of the illumination emanating from the light source in the local coordinate system. Light is emitted along parallel rays from an infinite distance away. A directional light source illuminates only the objects in its enclosing parent group. The light may illuminate everything within this coordinate system, including all children and descendants of its parent group. The accumulated transformations of the parent nodes affect the light. DirectionalLight nodes do not attenuate with distance. A precise description of VRML's lighting equations is contained in 4.14, Lighting model (<http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.14>).

Constructor & Destructor Documentation

   SoVRMLDirectionalLight::SoVRMLDirectionalLight (void) Constructor.
   SoVRMLDirectionalLight::~SoVRMLDirectionalLight () [protected, virtual] Destructor.

Member Function Documentation

   void SoVRMLDirectionalLight::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 SoVRMLLight.

   void SoVRMLDirectionalLight::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 SoVRMLLight.

Member Data Documentation

   SoSFVec3f SoVRMLDirectionalLight::direction The light direction.

Author

       Generated automatically by Doxygen for Coin from the source code.