shader
Class AreaLightShaderOp

java.lang.Object
  shader.AreaLightShaderOp

All Implemented Interfaces:

IShaderOp

public class AreaLightShaderOp
extends java.lang.Object
implements IShaderOp

Constructor Summary

AreaLightShaderOp(double width, double height, Point3D location, Vector3D dir, int samples, IPainter emm, double power, IPainter N, double hotSpot)
constructor

Method Summary

void	performOperation(IntersectionInfo ri, RayState rs, RGBColor c, ScatteredRayContainer raycon, Scene scene) computes the color
boolean	requireSPF() does the shader op needs the SPF

Methods inherited from class java.lang.Object

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

Constructor Detail

AreaLightShaderOp

public AreaLightShaderOp(double width,
                         double height,
                         Point3D location,
                         Vector3D dir,
                         int samples,
                         IPainter emm,
                         double power,
                         IPainter N,
                         double hotSpot)

constructor

Parameters:

width - width of the light source

height - height of the light source

location - where is the light source located

dir - what is the light source focussed on

samples - number of samples to take

emm - emission of this light

power - power scale

N - Phong factor for focussing the light on something

hotSpot - angle in radians of the light's hot spot

Method Detail

performOperation

public void performOperation(IntersectionInfo ri,
                             RayState rs,
                             RGBColor c,
                             ScatteredRayContainer raycon,
                             Scene scene)

Description copied from interface: IShaderOp

computes the color

Specified by:

performOperation in interface IShaderOp

Parameters:

ri - [in] intersection info

rs - [in] actual state of the ray

c - [out] color of the intersection

raycon - [in/out] the ray container

scene - [in]

requireSPF

public boolean requireSPF()

Description copied from interface: IShaderOp

does the shader op needs the SPF

Specified by:

requireSPF in interface IShaderOp

Returns:

true if it needs spf