osgUtil::HalfWayMapGenerator Class Reference

This cube map generator produces an Half-way vector map, useful for hardware-based specular lighting effects. More...

Inheritance diagram for osgUtil::HalfWayMapGenerator:

Inheritance graph
[legend]

List of all members.

Public Member Functions

 HalfWayMapGenerator (const osg::Vec3 &light_direction, int texture_size=64)
 HalfWayMapGenerator (const HalfWayMapGenerator &copy, const osg::CopyOp &copyop)

Protected Member Functions

virtual ~HalfWayMapGenerator ()
HalfWayMapGeneratoroperator= (const HalfWayMapGenerator &)
virtual osg::Vec4 compute_color (const osg::Vec3 &R) const
 Override this method to define how colors are computed.


Detailed Description

This cube map generator produces an Half-way vector map, useful for hardware-based specular lighting effects.

It computes: C = normalize(R - L), where C is the resulting color, R is the reflection vector and L is the light direction.


Constructor & Destructor Documentation

osgUtil::HalfWayMapGenerator::HalfWayMapGenerator ( const osg::Vec3 light_direction,
int  texture_size = 64 
)

osgUtil::HalfWayMapGenerator::HalfWayMapGenerator ( const HalfWayMapGenerator copy,
const osg::CopyOp copyop 
)

virtual osgUtil::HalfWayMapGenerator::~HalfWayMapGenerator (  )  [inline, protected, virtual]


Member Function Documentation

HalfWayMapGenerator& osgUtil::HalfWayMapGenerator::operator= ( const HalfWayMapGenerator  )  [inline, protected]

osg::Vec4 osgUtil::HalfWayMapGenerator::compute_color ( const osg::Vec3 R  )  const [inline, protected, virtual]

Override this method to define how colors are computed.

The parameter R is the reflection vector, pointing from the center of the cube. The return value should be the RGBA color associated with that reflection ray.

Implements osgUtil::CubeMapGenerator.


The documentation for this class was generated from the following file:
Generated at Sun Oct 14 02:12:49 2007 for the OpenSceneGraph by doxygen 1.5.3.