Turbulent worm noise. More...

#include <wormnoise.h>

Inheritance diagram for TurbulenceWormNoise:

Public Member Functions
	TurbulenceWormNoise (double, double, double, int)
	Create a turbulent noise.

double	Value (const Vector2 &) const
	Compute value.

Public Member Functions inherited from WormNoise
	WormNoise (double, const Vector2 &)
	Create worm noise.

Vector	Noise (const Vector2 &) const
	Compute worm noise value.

double	Value (const Vector2 &) const
	Compute worm noise value.

Public Member Functions inherited from AnalyticScalarField2
	AnalyticScalarField2 (bool=true)
	Constructor.

virtual Vector2	Gradient (const Vector2 &) const
	Compute the gradient of the field.

virtual Matrix2	Hessian (const Vector2 &) const
	Compute the hessian at a given point.

virtual ScalarField2	Sample (const Array2 &) const
	Create a discrete scalar field by sampling a given domain.

bool	Inside (const double &) const
	Check if the value is considered as inside or outside.

void	Curvature (const Vector2 &, double &, double &) const
	Compute the gaussian and mean curvatures.

virtual Box2	GetBox () const
	Return the bounding box.

Protected Attributes
double	alpha = 0.5
	Amplitude attenuation coefficient.

double	lambda = 0.5
	Wavelength amplification coefficient.

int	octaves = 8
	Number of octaves.

Protected Attributes inherited from AnalyticScalarField2
bool	sign = true
	Sign convention, used for normal computation.

Box2	box = Box2::Infinity
	Domain, set as infinite for base class.

Additional Inherited Members
Protected Member Functions inherited from WormNoise
Vector2	Hash (const Vector2 &) const
	Hash function for worm noise.

Protected Member Functions inherited from AnalyticScalarField2
Matrix	Local (const Vector2 &) const
	Compute the local neighborhood in the one-ring aroung a point.

Static Protected Attributes inherited from AnalyticScalarField2
static const double	epsilon = 1e-6
	\epsilon; value for partial derivatives

Detailed Description

Turbulent worm noise.

Constructor & Destructor Documentation

TurbulenceWormNoise::TurbulenceWormNoise	(	double	t,
		double	alpha,
		double	lambda,
		int	octaves )

Create a turbulent noise.

Parameters

t	Thickness.
alpha	Amplitude attenuation factor (~0.5, should be less than 1.0).
lambda	Wavelength attenuation factor (~0.5, should be less than 1.0).
octaves	Number of octaves.

double TurbulenceWormNoise::Value ( const Vector2 & p ) const

virtual

Compute value.

Parameters

p Point.