org.sunflow.core.shader
Class DiffuseShader

java.lang.Object
  org.sunflow.core.shader.DiffuseShader

All Implemented Interfaces:

RenderObject, Shader

Direct Known Subclasses:

TexturedDiffuseShader

public class DiffuseShader
extends java.lang.Object
implements Shader

Constructor Summary

DiffuseShader()

Method Summary

Color	getDiffuse(ShadingState state)
Color	getRadiance(ShadingState state) Gets the radiance for a specified rendering state.
void	scatterPhoton(ShadingState state, Color power) Scatter a photon with the specied power.
boolean	update(ParameterList pl, SunflowAPI api) Update this object given a list of parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

DiffuseShader

public DiffuseShader()

Method Detail

update

public boolean update(ParameterList pl,
                      SunflowAPI api)

Description copied from interface: RenderObject

Update this object given a list of parameters. This method is guarenteed to be called at least once on every object, but it should correctly handle empty parameter lists. This means that the object should be in a valid state from the time it is constructed. This method should also return true or false depending on whether the update was succesfull or not.

Specified by:

update in interface RenderObject

Parameters:

pl - list of parameters to read from

api - reference to the current scene

Returns:

true if the update is succesfull, false otherwise

getDiffuse

public Color getDiffuse(ShadingState state)

getRadiance

public Color getRadiance(ShadingState state)

Description copied from interface: Shader

Gets the radiance for a specified rendering state. When this method is called, you can assume that a hit has been registered in the state and that the hit surface information has been computed.

Specified by:

getRadiance in interface Shader

Parameters:

state - current render state

Returns:

color emitted or reflected by the shader

scatterPhoton

public void scatterPhoton(ShadingState state,
                          Color power)

Description copied from interface: Shader

Scatter a photon with the specied power. Incoming photon direction is specified by the ray attached to the current render state. This method can safely do nothing if photon scattering is not supported or relevant for the shader type.

Specified by:

scatterPhoton in interface Shader

Parameters:

state - current state

power - power of the incoming photon.