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.

---

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:

• HalfWayMapGenerator

---