class RED::Noise

Noise functions class. More...

#include <REDNoise.h>

Public static functions:

static void	Perlin2d ( double & oNoise, const double iPos[2] )
static void	Perlin2dD ( double & oNoise, double oD[2], const double iPos[2] )
static RED_RC	Perlin2dP ( double & oNoise, const double iPos[2], const int iPeriod[2] )
static void	Perlin3d ( double & oNoise, const double iPos[3] )
static void	Perlin3dD ( double & oNoise, double oD[3], const double iPos[3] )
static RED_RC	Perlin3dP ( double & oNoise, const double iPos[3], const int iPeriod[3] )
static void	Worley2d ( double & oNoise, const double iPos[2] )
static void	Worley2dD ( double & oNoise, double oD[2], const double iPos[2] )
static void	Worley3d ( double & oNoise, const double iPos[3] )
static void	Worley3dD ( double & oNoise, double oD[3], const double iPos[3] )

Detailed description:

Noise functions class.

This class introduces useful functions to produce 2d/3d noise.

Functions documentation

public static void RED::Noise::Perlin2d	(	double &	oNoise,
		const double	iPos[2]
	)

Computes Perlin noise at the given 2d position.

Parameters:

oNoise	returned Perlin 2d noise in [-1, 1].
iPos	2d position.

public static void RED::Noise::Perlin2dD	(	double &	oNoise,
		double	oD[2],
		const double	iPos[2]
	)

Computes Perlin noise at the given 2d position including derivatives.

Parameters:

oNoise	returned Perlin 2d noise in [-1, 1].
oD	derivatives in x and y.
iPos	2d position.

public static RED_RC RED::Noise::Perlin2dP	(	double &	oNoise,
		const double	iPos[2],
		const int	iPeriod[2]
	)

Computes Perlin noise at the given 2d position and wraps the gradients around the given period.

Parameters:

oNoise	returned Perlin 2d noise in [-1, 1].
iPos	2d position.
iPeriod	values above this threshold will be wrapped, must be greater than 0.

Returns:

RED_OK on success, RED_BAD_PARAM if period is not greater than 0.

public static void RED::Noise::Perlin3d	(	double &	oNoise,
		const double	iPos[3]
	)

Computes Perlin noise at the given 3d position.

Parameters:

oNoise	returned Perlin 3d noise in [-1, 1].
iPos	3d position.

public static void RED::Noise::Perlin3dD	(	double &	oNoise,
		double	oD[3],
		const double	iPos[3]
	)

Computes Perlin noise at the given 3d position including derivatives.

Parameters:

oNoise	returned Perlin 3d noise in [-1, 1].
oD	derivatives in x, y and z.
iPos	3d position.

public static RED_RC RED::Noise::Perlin3dP	(	double &	oNoise,
		const double	iPos[3],
		const int	iPeriod[3]
	)

Computes Perlin noise at the given 3d position and wraps the gradients around the given period.

Parameters:

oNoise	returned Perlin 3d noise in [-1, 1].
iPos	3d position.
iPeriod	iPos above this threshold will be wrapped, must be greater than 0.

Returns:

RED_OK on success, RED_BAD_PARAM if period is not greater than 0.

public static void RED::Noise::Worley2d	(	double &	oNoise,
		const double	iPos[2]
	)

Computes Worley noise at the given 2d position.

Parameters:

oNoise	returned Worley 2d noise in [-1, 1].
iPos	2d position.

public static void RED::Noise::Worley2dD	(	double &	oNoise,
		double	oD[2],
		const double	iPos[2]
	)

Computes Worley noise at the given 2d position including derivatives.

Parameters:

oNoise	returned Worley 2d noise in [-1, 1].
oD	derivatives in x and y.
iPos	2d position.

public static void RED::Noise::Worley3d	(	double &	oNoise,
		const double	iPos[3]
	)

Computes Worley noise at the given 2d position.

Parameters:

oNoise	returned Worley 3d noise in [-1, 1].
iPos	3d position.

public static void RED::Noise::Worley3dD	(	double &	oNoise,
		double	oD[3],
		const double	iPos[3]
	)

Computes Worley noise at the given 3d position including derivatives.

Parameters:

oNoise	returned Worley 3d noise in [-1, 1].
oD	derivatives in x, y and z.
iPos	3d position.