IlvLightSource Class Reference

Lights. More...

#include <ilviews/bitmaps/filters/lights.h>

Inheritance diagram for IlvLightSource:

Public Member Functions
	IlvLightSource (IlFloat r=1.0, IlFloat g=1.0, IlFloat b=1.0)
	Constructor. More...
virtual	~IlvLightSource ()
	Destructor. More...
IlFloat	getB () const
	Returns the blue component value. More...
IlFloat	getG () const
	Returns the green component value. More...
virtual void	getLightVector (IlFloat x, IlFloat y, IlFloat z, IlFloat *result)
	Returns the vector from this instance to a given point in 3D space. More...
IlFloat	getR () const
	Returns the red component value. More...
void	setB (IlFloat b)
	Sets the blue component value. More...
void	setG (IlFloat g)
	Sets the green component value. More...
void	setR (IlFloat r)
	Sets the red component value. More...
virtual void	update ()
	Called when the instance needs internal updating.

Detailed Description

Lights.

Library: display

This class is the base class of lights. It allows you to model a light source to use in IlvDiffuseLightingFilter or IlvSpecularLightingFilter.

Every light has a color.

See Also

IlvDiffuseLightingFilter, IlvSpecularLightingFilter, IlvDistantLightSource, IlvPointLightSource, IlvSpotLightSource

Constructor & Destructor Documentation

IlvLightSource::IlvLightSource	(	IlFloat	r = 1.0,
		IlFloat	g = 1.0,
		IlFloat	b = 1.0
	)

Constructor.

Initializes a new instance of the class IlvLightSource.

The default light color is white.

virtual IlvLightSource::~IlvLightSource ( )

virtual

Destructor.

The destructor releases all the memory used by the instance.

Member Function Documentation

IlFloat IlvLightSource::getB

(

)

const

Returns the blue component value.

Returns

The blue component value.

IlFloat IlvLightSource::getG

(

)

const

Returns the green component value.

Returns

The green component value.

virtual void IlvLightSource::getLightVector ( IlFloat  x, IlFloat  y, IlFloat  z, IlFloat *  result  )

virtual

Returns the vector from this instance to a given point in 3D space.

Parameters

x	The x position of the point.
y	The y position of the point.
z	The z position of the point.
result	An array of 3 floating point values that will hold the vector.

Reimplemented in IlvSpotLight, IlvPointLight, and IlvDistantLight.

IlFloat IlvLightSource::getR

(

)

const

Returns the red component value.

Returns

The red component value.

void IlvLightSource::setB

(

IlFloat

b

)

Sets the blue component value.

Parameters

b	The new blue component value.

void IlvLightSource::setG

(

IlFloat

g

)

Sets the green component value.

Parameters

g	The new green component value.

void IlvLightSource::setR

(

IlFloat

r

)

Sets the red component value.

Parameters

r	The new red component value.