raytracer
Class PointLight

java.lang.Object
  raytracer.PointLight

All Implemented Interfaces:

ILight

public class PointLight
extends java.lang.Object
implements ILight

Field Summary

RGBColor	color
double	linearAttenuation
Point3D	position
double	quadraticAttenuation
double	radiantEnergy

Constructor Summary

PointLight(Point3D position, double radiantEnergy, RGBColor color)
Creates a point light

PointLight(Point3D position, double radiantEnergy, RGBColor color, double linatt, double quadatten)
Creates a point light

Method Summary

void	computeDirectLighting(IntersectionInfo intersection, RayState rs, Raycaster raycaster, IBSDF brdf, RGBColor amount) computes the lighting at the intersection point

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

position

public Point3D position

radiantEnergy

public double radiantEnergy

color

public RGBColor color

linearAttenuation

public double linearAttenuation

quadraticAttenuation

public double quadraticAttenuation

Constructor Detail

PointLight

public PointLight(Point3D position,
                  double radiantEnergy,
                  RGBColor color)

Creates a point light

Parameters:

position - (Vector3D)

radiantEnergy - the energy of the light source

color - (RGBColor)

PointLight

public PointLight(Point3D position,
                  double radiantEnergy,
                  RGBColor color,
                  double linatt,
                  double quadatten)

Creates a point light

Parameters:

position - [in] (Vector3D)

radiantEnergy - [in] radiant energy

color - [in] (RGBColor)

linatt - [in] the linear attenuation factor

quadatten - [in] the quadratic attenuation factor

Method Detail

computeDirectLighting

public void computeDirectLighting(IntersectionInfo intersection,
                                  RayState rs,
                                  Raycaster raycaster,
                                  IBSDF brdf,
                                  RGBColor amount)

Description copied from interface: ILight

computes the lighting at the intersection point

Specified by:

computeDirectLighting in interface ILight

Parameters:

intersection - [in] intersection information

rs - [in] state of the raytracer

raycaster - [in]

brdf - [in]

amount - [in/out] the color of the ray