PointLight Class Reference

#include <PointLight.h>

Inherits Light.

Inheritance diagram for PointLight:

[legend]Collaboration diagram for PointLight:

[legend]List of all members.

Public Member Functions
	PointLight (const RGBAColor &intensity, const Vec3f &position)
void	setNumberOfRays (unsigned int)
RGBAColor	illuminate (Vec3f &dir, const Vec3f &org, unsigned int) const
Private Attributes
Vec3f	mPosition
	Origin.
RGBAColor	mIntensity
	Emission (red, green, blue, alpha here unused).

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Detailed Description

Point light source

Author:

Alex Busenius

Christian Engels

Definition at line 12 of file PointLight.h.

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Constructor & Destructor Documentation

PointLight::PointLight	(	const RGBAColor &	intensity,
		const Vec3f &	position
	)			[inline]

Inititalize light source.

Parameters:

	intensity	Intensity of the light source (color)
	position	Position of the point light

Definition at line 20 of file PointLight.h.

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Member Function Documentation

void PointLight::setNumberOfRays

(

unsigned int

)

[inline, virtual]

Set number of rays. The argument is ignored since a point light source only needs 1 ray.

Implements Light.

Definition at line 30 of file PointLight.h.

RGBAColor PointLight::illuminate	(	Vec3f &	dir,
		const Vec3f &	org,
		unsigned int
	)			const [inline, virtual]

Calculates the illuminance

Parameters:

	dir	This vector is initialized with the direction to the light source
	org	The point which should be illuminated
	index	The number of the shadow ray?

Returns:

Illuminance color, if the object is in the shadow we return black

Implements Light.

Definition at line 39 of file PointLight.h.

References Primitive::castShadows(), Scene::castShadows(), EPSILON, Ray::hit(), Ray::init(), Scene::intersect(), Vec3f::length(), mIntensity, mPosition, Light::mScene, Vec3f::normalize(), RGBAColor::rgb(), and Ray::t().

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Member Data Documentation

Vec3f PointLight::mPosition [private]

Origin.

Definition at line 60 of file PointLight.h.

Referenced by illuminate().

RGBAColor PointLight::mIntensity [private]

Emission (red, green, blue, alpha here unused).

Definition at line 63 of file PointLight.h.

Referenced by illuminate().

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

• src/PointLight.h

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