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:

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

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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.

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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]

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Member Function Documentation

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.

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

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

• HalfWayMapGenerator

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