C# Класс BRDFLafortuneFitting.Program

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Защищенные свойства (Protected)

Свойство	Тип	Описание
ALF	double
EPS	double
ITMAX	int
STPMX	double
TOLX	double
TOLY	double

Защищенные методы

Метод	Описание
BRDFMappingGlobalFunctionEval ( double _Coefficients, object _Params ) : double
BRDFMappingGlobalFunctionGradientEval ( double _Coefficients, double _Gradients, object _Params ) : void
BRDFMappingLocalFunctionEval ( double _Coefficients, object _Params ) : double
BRDFMappingLocalFunctionGradientEval ( double _Coefficients, double _Gradients, object _Params ) : void
ENSUREVALID ( double _Coefficients ) : void
LoadBRDF ( FileInfo _BRDFFile ) : double[][]	Loads a MERL BRDF file
SaveAllSlices ( ) : void
dfpmin ( double _Coefficients, double _ConvergenceTolerance, int &_PerformedIterationsCount, BFGSFunctionEval _FunctionEval, BFGSFunctionGradientEval _FunctionGradientEval, object _Params ) : double	Performs BFGS function minimzation on a quadratic form function evaluated by the provided delegate
lnsrch ( int n, double xold, double fold, double g, double p, double x, double &f, double stpmax, int &check, BFGSFunctionEval _FunctionEval, object _Params ) : void

Приватные методы

Метод	Описание
ComputeSummedDifferences ( BRDFSample _Samples, double _Normalizer, double _GoalBDRF, CosineLobe _LobeEstimates ) : double	Computes the square difference between a current cosine lobe estimate and a goal BRDF given a set of samples
FitBRDF ( double _BRDF, CosineLobe _Lobes, CosineLobe _InitialGuesses, double _BFGSConvergenceTolerance, double _RMS, BRDFMappingFeedback _Delegate ) : double	Performs mapping of a BRDF into N sets of cosine lobes coefficients WARNING: Takes hell of a time to compute !
IsValid ( double _BRDFValue ) : bool
LookupBRDF ( double _BRDF, double _ThetaIn, double _PhiIn, double _ThetaOut, double _PhiOut ) : double	Given a pair of incoming/outgoing angles, look up the BRDF.
Main ( string args ) : void
PhiDiff_index ( double _PhiDiff ) : int
ShowProgress ( double _Progress ) : void
ThetaDiff_index ( double _ThetaDiff ) : int
ThetaHalf_index ( double _ThetaHalf ) : int
half_diff_coords_to_std_coords ( double _ThetaHalf, double _PhiHalf, double _ThetaDiff, double _PhiDiff, System.Vector3 &_In, System.Vector3 &_Out ) : void
half_diff_coords_to_std_coords ( double _ThetaHalf, double _PhiHalf, double _ThetaDiff, double _PhiDiff, double &_ThetaIn, double &_PhiIn, double &_ThetaOut, double &_PhiOut ) : void
std_coords_to_half_diff_coords ( double _ThetaIn, double _PhiIn, double _ThetaOut, double _PhiOut, double &_ThetaHalf, double &_PhiHalf, double &_ThetaDiff, double &_PhiDiff ) : void

Описание методов

BRDFMappingGlobalFunctionEval() защищенный статический Метод

protected static BRDFMappingGlobalFunctionEval ( double _Coefficients, object _Params ) : double
_Coefficients	double
_Params	object
Результат	double

BRDFMappingGlobalFunctionGradientEval() защищенный статический Метод

protected static BRDFMappingGlobalFunctionGradientEval ( double _Coefficients, double _Gradients, object _Params ) : void
_Coefficients	double
_Gradients	double
_Params	object
Результат	void

BRDFMappingLocalFunctionEval() защищенный статический Метод

protected static BRDFMappingLocalFunctionEval ( double _Coefficients, object _Params ) : double
_Coefficients	double
_Params	object
Результат	double

BRDFMappingLocalFunctionGradientEval() защищенный статический Метод

protected static BRDFMappingLocalFunctionGradientEval ( double _Coefficients, double _Gradients, object _Params ) : void
_Coefficients	double
_Gradients	double
_Params	object
Результат	void

ENSUREVALID() защищенный статический Метод

protected static ENSUREVALID ( double _Coefficients ) : void
_Coefficients	double
Результат	void

LoadBRDF() защищенный статический Метод

Loads a MERL BRDF file

protected static LoadBRDF ( FileInfo _BRDFFile ) : double[][]
_BRDFFile	System.IO.FileInfo
Результат	double[][]

SaveAllSlices() защищенный статический Метод

protected static SaveAllSlices ( ) : void
Результат	void

dfpmin() защищенный статический Метод

Performs BFGS function minimzation on a quadratic form function evaluated by the provided delegate

protected static dfpmin ( double _Coefficients, double _ConvergenceTolerance, int &_PerformedIterationsCount, BFGSFunctionEval _FunctionEval, BFGSFunctionGradientEval _FunctionGradientEval, object _Params ) : double
_Coefficients	double	The array of initial coefficients (indexed from 1!!) that will also contain the resulting coefficients when the routine has converged
_ConvergenceTolerance	double	The tolerance error to accept as the minimum of the function
_PerformedIterationsCount	int	The amount of iterations performed to reach the minimum
_FunctionEval	BFGSFunctionEval	The delegate used to evaluate the function to minimize
_FunctionGradientEval	BFGSFunctionGradientEval	The delegate used to evaluate the gradient of the function to minimize
_Params	object	Some user params passed to the evaluation functions
Результат	double

lnsrch() защищенный статический Метод

protected static lnsrch ( int n, double xold, double fold, double g, double p, double x, double &f, double stpmax, int &check, BFGSFunctionEval _FunctionEval, object _Params ) : void
n	int
xold	double
fold	double
g	double
p	double
x	double
f	double
stpmax	double
check	int
_FunctionEval	BFGSFunctionEval
_Params	object
Результат	void

Описание свойств

ALF защищенное статическое свойство

protected static double ALF
Результат	double

EPS защищенное статическое свойство

protected static double EPS
Результат	double

ITMAX защищенное статическое свойство

protected static int ITMAX
Результат	int

STPMX защищенное статическое свойство

protected static double STPMX
Результат	double

TOLX защищенное статическое свойство

protected static double TOLX
Результат	double

TOLY защищенное статическое свойство

protected static double TOLY
Результат	double