material
Class DielectricSPF

java.lang.Object
  material.DielectricSPF

All Implemented Interfaces:

ISPF

public class DielectricSPF
extends java.lang.Object
implements ISPF

the dielectric scattering function

Constructor Summary

DielectricSPF(IPainter tau, IPainter ri, IPainter s, boolean hg)
constructor - Creates a scattering function

Method Summary

RGBColor	getRayColor(IntersectionInfo intersection) returns the color of the ray shaded with data from the intersection info
double	getReflectance(Vector3D toLight, IntersectionInfo ri)
void	scatter(IntersectionInfo ri, ScatteredRayContainer scattered) Creates a scattered ray and adds it to the ray-container

Methods inherited from class java.lang.Object

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

Constructor Detail

DielectricSPF

public DielectricSPF(IPainter tau,
                     IPainter ri,
                     IPainter s,
                     boolean hg)

constructor - Creates a scattering function

Parameters:

tau - Transmittance

ri - Index of refraction

s - Scattering function (either Phong or HG)

hg - Use Henyey-Greenstein phase function scattering

Method Detail

getReflectance

public double getReflectance(Vector3D toLight,
                             IntersectionInfo ri)

Parameters:

toLight - vector to the light (normalized)

ri - information of the intersection

Returns:

the reflectance

scatter

public void scatter(IntersectionInfo ri,
                    ScatteredRayContainer scattered)

Creates a scattered ray and adds it to the ray-container

Specified by:

scatter in interface ISPF

Parameters:

ri - [in] intersection details for point of intersection

scattered - [in/out] the container with the scattered rays

getRayColor

public RGBColor getRayColor(IntersectionInfo intersection)

returns the color of the ray shaded with data from the intersection info

Specified by:

getRayColor in interface ISPF

Parameters:

intersection - [in] intersection details for point of intersection

Returns:

the color at the intersection