Module raytracer

Package de.grogra.ray2.tracing

Class MetropolisProcessor

java.lang.Object

de.grogra.ray2.tracing.ProcessorBase

de.grogra.ray2.tracing.RayProcessorBase

de.grogra.ray2.tracing.PathTracer

de.grogra.ray2.tracing.BiDirectionalProcessor

de.grogra.ray2.tracing.MetropolisProcessor

All Implemented Interfaces:

RayProcessor, Cloneable

public class MetropolisProcessor
extends BiDirectionalProcessor

Nested Class Summary

Nested classes/interfaces inherited from class de.grogra.ray2.tracing.RayProcessorBase

RayProcessorBase.Locals

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CORRECTION_FACTOR
int	imageHeight
protected int	imageUpdateRate
int	imageWidth
int	maximalPathLength
int	minimalPathLength
static final String	MUTATION_PP_COUNT
protected long	nextImageUpdateTime
static boolean	stopped
protected long	timeDiff

Fields inherited from class de.grogra.ray2.tracing.BiDirectionalProcessor

bestLight, bestS, bestT, EYEPATH_DEPTH, HEURISTIC_FACTOR, isMetropolis, LIGHTPATH_DEPTH, lineTracer, loacalCausticMap, tracingMediator

Fields inherited from class de.grogra.ray2.tracing.PathTracer

BRIGHTNESS

Fields inherited from class de.grogra.ray2.tracing.RayProcessorBase

enteredSolids, RECURSION_DEPTH, scene

Constructor Summary

Constructors

Constructor	Description
MetropolisProcessor()

Method Summary

Modifier and Type	Method	Description
protected void	appendStatisticsImpl(StringBuffer stats)
RayProcessor	dup(Scene scene)	Returns a clone of this RayProcessor.
void	getColorFromRay(Line ray, Spectrum resp, Color4f color, Random random)	The main method of a ray processor.
int	getMutatedPixels()
PixelwiseRenderer.Result	getResult()
void	initialize(PixelwiseRenderer renderer, Scene scene)	With this method the processor is initialized with the scene and other information of a PixelwiseRenderer.
void	initializeLoop(float brightness, int imageWidth, int imageHeight, int mutatedPixPerProc, MetropolisRenderer.MetropolisResult result, int procId)
void	mergeWithRenderer()
void	pathChanged()
void	resetAll()
void	setMinMaxPathLength(int testLength)

Methods inherited from class de.grogra.ray2.tracing.BiDirectionalProcessor

chooseBestPathCombination, initializeBeforeTracing

Methods inherited from class de.grogra.ray2.tracing.PathTracer

initLocals, mergeStatistics

Methods inherited from class de.grogra.ray2.tracing.RayProcessorBase

getIOR, getLightProcessor, setLightProcessor, setRecursionDepth

Methods inherited from class de.grogra.ray2.tracing.ProcessorBase

appendStatistics, clone

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.grogra.ray2.tracing.RayProcessor

appendStatistics

Field Details

CORRECTION_FACTOR

public static final String CORRECTION_FACTOR

See Also:

• Constant Field Values

MUTATION_PP_COUNT

public static final String MUTATION_PP_COUNT

See Also:

• Constant Field Values

minimalPathLength

public int minimalPathLength

maximalPathLength

public int maximalPathLength

stopped

public static boolean stopped

imageWidth

public int imageWidth

imageHeight

public int imageHeight

imageUpdateRate

protected int imageUpdateRate

nextImageUpdateTime

protected long nextImageUpdateTime

timeDiff

protected long timeDiff

Constructor Details

MetropolisProcessor

public MetropolisProcessor()

Method Details

dup

public RayProcessor dup(Scene scene)

Description copied from interface: RayProcessor

Returns a clone of this RayProcessor. All constant variables are copied shallowly, state variables are newly created and copied where necessary.

Specified by:

dup in interface RayProcessor

Overrides:

dup in class BiDirectionalProcessor

Parameters:

scene - duplicate of scene

Returns:

clone of this ray processor

initialize

public void initialize(PixelwiseRenderer renderer,
 Scene scene)

Description copied from interface: RayProcessor

With this method the processor is initialized with the scene and other information of a PixelwiseRenderer.

Specified by:

initialize in interface RayProcessor

Overrides:

initialize in class BiDirectionalProcessor

Parameters:

renderer - the renderer which provides the needed information

scene - the scene which is rendered

setMinMaxPathLength

public void setMinMaxPathLength(int testLength)

getColorFromRay

public void getColorFromRay(Line ray,
 Spectrum resp,
 Color4f color,
 Random random)

Description copied from interface: RayProcessor

The main method of a ray processor. This method computes a color for the specified ray. color.w contains the alpha value for the ray, the other components are premultiplied with this alpha value.

Specified by:

getColorFromRay in interface RayProcessor

Overrides:

getColorFromRay in class BiDirectionalProcessor

Parameters:

ray - input - calculate for this ray

resp - responsivity of camera

color - output - the calculated color

random - pseudorandom generator

mergeWithRenderer

public void mergeWithRenderer()

resetAll

public void resetAll()

initializeLoop

public void initializeLoop(float brightness,
 int imageWidth,
 int imageHeight,
 int mutatedPixPerProc,
 MetropolisRenderer.MetropolisResult result,
 int procId)

getResult

public PixelwiseRenderer.Result getResult()

getMutatedPixels

public int getMutatedPixels()

appendStatisticsImpl

protected void appendStatisticsImpl(StringBuffer stats)

Overrides:

appendStatisticsImpl in class BiDirectionalProcessor

pathChanged

public void pathChanged()