#include <PointLight.hpp>

Inheritance diagram for RayTracer::PointLight:

Public Member Functions
	PointLight (const Math::Point3D &pos, float intensity)

Color	illuminate (const Ray &ray, const IPrimitive &object, const Math::Point3D &point) const override

const Math::Point3D &	getPosition () const

Public Member Functions inherited from RayTracer::ILight
virtual	~ILight ()=default

Private Attributes
Math::Point3D	_position

float	_intensity

Detailed Description

Definition at line 15 of file PointLight.hpp.

Constructor & Destructor Documentation

◆ PointLight()

RayTracer::PointLight::PointLight	(	const Math::Point3D &	pos,
		float	intensity )

Definition at line 9 of file PointLight.cpp.

9 : _position(pos), _intensity(intensity)

10{}

RayTracer::PointLight::_position

Math::Point3D _position

Definition PointLight.hpp:23

RayTracer::PointLight::_intensity

float _intensity

Definition PointLight.hpp:24

References _intensity, and _position.

Member Function Documentation

◆ getPosition()

const Math::Point3D & RayTracer::PointLight::getPosition ( ) const

Definition at line 26 of file PointLight.cpp.

{
    return _position;
}

References _position.

◆ illuminate()

Color RayTracer::PointLight::illuminate	(	const Ray &	ray,
		const IPrimitive &	object,
		const Math::Point3D &	point ) const

overridevirtual

Implements RayTracer::ILight.

Definition at line 12 of file PointLight.cpp.

{
    Color base = object.getBaseColor();
    Math::Vector3D lightVec = _position - point;
    double distance = lightVec.length();
    double attenuation = 1.0 / (distance * distance);
 
    return Color(
        std::clamp(static_cast<int>(base.r * _intensity * attenuation), 0, 255),
        std::clamp(static_cast<int>(base.g * _intensity * attenuation), 0, 255),
        std::clamp(static_cast<int>(base.b * _intensity * attenuation), 0, 255)
    );
}

References _intensity, _position, Color::b, Color::g, Math::Vector3D::length(), and Color::r.

Member Data Documentation

◆ _intensity

float RayTracer::PointLight::_intensity

private

Definition at line 24 of file PointLight.hpp.

◆ _position

Math::Point3D RayTracer::PointLight::_position