Module raytracer

Package de.grogra.ray2.metropolis.strategy

Class MutationStrategy

java.lang.Object

de.grogra.ray2.metropolis.strategy.MutationStrategy

All Implemented Interfaces:

MetropolisStrategy

Direct Known Subclasses:

BidirectionalMutationStrat, CausticPerturbation, LensPerturbationStrat, LensSubpathStrat

public abstract class MutationStrategy
extends Object
implements MetropolisStrategy

Field Summary

Fields

Modifier and Type	Field	Description
int	abbortCode
protected MetropolisAntiAliasing	antialiser
static final int	BSDF_WAS_ZERO
static final int	CALCULATION_ERROR
static final int	CANVAS_WASNT_HIT
protected ComplementTracer	complTracer
ConditionObject	condition
protected PathValues	eyePath
static final String	EYEPATH_DEPTH
protected int	eyePathDepth
protected IntersectionList	ilist
protected PathValues	lightPath
static final String	LIGHTPATH_DEPTH
protected int	lightPathDepth
protected static int	MAXVAL
protected static final float	MIN_WEIGHT
protected CombinedPathValues	mutatedPath
static final int	NO_CHANGES_HAPPENED
static final int	NO_VALID_COMBINEDPATH
static final int	NOT_IMPLEMENTED_YET
static final int	NOT_VISIBLE
static final int	PATH_SPECTRA_WERE_TOO_WEAK
protected MTRandom	rnd
protected int	sig
protected CombinedPathValues	srcPath
static final int	SUCCESSFUL_MUTATIONRUN
protected Environment	tmpEnv
protected Line	tmpLine
protected Point3d	tmpPoint1
protected Point3d	tmpPoint2
protected RayList	tmpRayList
protected Spectrum3d	tmpSpec1
protected Spectrum3d	tmpSpec2
protected Spectrum3d	tmpSpec3
protected Vector3f	tmpVec1
protected Vector3f	tmpVec2
protected LineTracer	tracer
static final int	TRACINGGOAL_WASNT_REACHED
protected TracingMediator	tracingMediator

Constructor Summary

Constructors

Constructor	Description
MutationStrategy(MetropolisProcessor metroProc)

Method Summary

Modifier and Type	Method	Description
float	calculateAcceptanceProbality(int l, int m, int l_, int m_)
float	calculateQ(int l, int m, int l_, int m_, CombinedPathValues srcPath, CombinedPathValues mutatedPath, boolean x2y)
Line	generateNewStartLine(boolean isLightRay)
String	getAcceptanceAbbortDescription()
int	getAddiationPathLength(int kd)
float	getAddProbability(int l, int m, int l_, int m_)
int[]	getAddVertice(int k)
Spectrum3d	getCombinedBSDF(int startIndex, CombinedPathValues mutatedPath)
float	getDeleteProbability(int l, int m)
int[]	getDeleteVertice(int k)
int	getDeletionPathLength()
String	getDescription()
float	getI_0(CombinedPathValues path)
abstract ArrayList<String>	getStatistics()
boolean	hitsCanvas(CombinedPathValues testPath)
abstract void	initialize(double[] values)
boolean	isVisble(Environment lightEnv, Environment eyeEnv, Intersection lightInt)
float	luminance(Spectrum3d lumSpec)
float	mutatePath(CombinedPathValues actualPath, CombinedPathValues mutatedPath)
void	pathChanged()
int	registerError(int error)
abstract void	resetAll()
void	traceEyeSubPath(int m, int m_)
void	traceLightSubPath(int l, int l_)

Methods inherited from class java.lang.Object

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

Field Details

MIN_WEIGHT

protected static final float MIN_WEIGHT

See Also:

• Constant Field Values

tracingMediator

protected TracingMediator tracingMediator

antialiser

protected MetropolisAntiAliasing antialiser

tracer

protected LineTracer tracer

complTracer

protected ComplementTracer complTracer

rnd

protected MTRandom rnd

srcPath

protected CombinedPathValues srcPath

mutatedPath

protected CombinedPathValues mutatedPath

condition

public ConditionObject condition

EYEPATH_DEPTH

public static final String EYEPATH_DEPTH

See Also:

• Constant Field Values

LIGHTPATH_DEPTH

public static final String LIGHTPATH_DEPTH

See Also:

• Constant Field Values

abbortCode

public int abbortCode

NOT_IMPLEMENTED_YET

public static final int NOT_IMPLEMENTED_YET

See Also:

• Constant Field Values

SUCCESSFUL_MUTATIONRUN

public static final int SUCCESSFUL_MUTATIONRUN

See Also:

• Constant Field Values

NOT_VISIBLE

public static final int NOT_VISIBLE

See Also:

• Constant Field Values

NO_VALID_COMBINEDPATH

public static final int NO_VALID_COMBINEDPATH

See Also:

• Constant Field Values

BSDF_WAS_ZERO

public static final int BSDF_WAS_ZERO

See Also:

• Constant Field Values

NO_CHANGES_HAPPENED

public static final int NO_CHANGES_HAPPENED

See Also:

• Constant Field Values

PATH_SPECTRA_WERE_TOO_WEAK

public static final int PATH_SPECTRA_WERE_TOO_WEAK

See Also:

• Constant Field Values

CANVAS_WASNT_HIT

public static final int CANVAS_WASNT_HIT

See Also:

• Constant Field Values

CALCULATION_ERROR

public static final int CALCULATION_ERROR

See Also:

• Constant Field Values

TRACINGGOAL_WASNT_REACHED

public static final int TRACINGGOAL_WASNT_REACHED

See Also:

• Constant Field Values

MAXVAL

protected static int MAXVAL

sig

protected int sig

eyePath

protected PathValues eyePath

lightPath

protected PathValues lightPath

tmpSpec1

protected Spectrum3d tmpSpec1

tmpSpec2

protected Spectrum3d tmpSpec2

tmpSpec3

protected Spectrum3d tmpSpec3

tmpVec1

protected Vector3f tmpVec1

tmpVec2

protected Vector3f tmpVec2

tmpPoint1

protected Point3d tmpPoint1

tmpPoint2

protected Point3d tmpPoint2

tmpLine

protected Line tmpLine

ilist

protected IntersectionList ilist

tmpRayList

protected RayList tmpRayList

tmpEnv

protected Environment tmpEnv

eyePathDepth

protected int eyePathDepth

lightPathDepth

protected int lightPathDepth

Constructor Details

MutationStrategy

public MutationStrategy(MetropolisProcessor metroProc)

Method Details

initialize

public abstract void initialize(double[] values)

mutatePath

public float mutatePath(CombinedPathValues actualPath,
 CombinedPathValues mutatedPath)

Specified by:

mutatePath in interface MetropolisStrategy

getDeleteProbability

public float getDeleteProbability(int l,
 int m)

getAddProbability

public float getAddProbability(int l,
 int m,
 int l_,
 int m_)

getDeletionPathLength

public int getDeletionPathLength()

getAddiationPathLength

public int getAddiationPathLength(int kd)

getDeleteVertice

public int[] getDeleteVertice(int k)

getAddVertice

public int[] getAddVertice(int k)

traceLightSubPath

public void traceLightSubPath(int l,
 int l_)

traceEyeSubPath

public void traceEyeSubPath(int m,
 int m_)

generateNewStartLine

public Line generateNewStartLine(boolean isLightRay)

calculateAcceptanceProbality

public float calculateAcceptanceProbality(int l,
 int m,
 int l_,
 int m_)

getI_0

public float getI_0(CombinedPathValues path)

calculateQ

public float calculateQ(int l,
 int m,
 int l_,
 int m_,
 CombinedPathValues srcPath,
 CombinedPathValues mutatedPath,
 boolean x2y)

luminance

public float luminance(Spectrum3d lumSpec)

getCombinedBSDF

public Spectrum3d getCombinedBSDF(int startIndex,
 CombinedPathValues mutatedPath)

isVisble

public boolean isVisble(Environment lightEnv,
 Environment eyeEnv,
 Intersection lightInt)

hitsCanvas

public boolean hitsCanvas(CombinedPathValues testPath)

getAcceptanceAbbortDescription

public String getAcceptanceAbbortDescription()

Specified by:

getAcceptanceAbbortDescription in interface MetropolisStrategy

registerError

public int registerError(int error)

pathChanged

public void pathChanged()

Specified by:

pathChanged in interface MetropolisStrategy

getDescription

public String getDescription()

Specified by:

getDescription in interface MetropolisStrategy

resetAll

public abstract void resetAll()

Specified by:

resetAll in interface MetropolisStrategy

getStatistics

public abstract ArrayList<String> getStatistics()

Specified by:

getStatistics in interface MetropolisStrategy