noise.h File Reference

#include "irr_v3d.h"
#include "exceptions.h"
#include "util/string.h"

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Classes
class	PseudoRandom
class	PcgRandom
struct	NoiseParams
class	Noise

Macros
#define	NOISE_FLAG_DEFAULTS   0x01
#define	NOISE_FLAG_EASED   0x02
#define	NOISE_FLAG_ABSVALUE   0x04
#define	NOISE_FLAG_POINTBUFFER   0x08
#define	NOISE_FLAG_SIMPLEX   0x10

Functions
float	NoiseFractal2D (const NoiseParams *np, float x, float y, s32 seed)
float	NoiseFractal3D (const NoiseParams *np, float x, float y, float z, s32 seed)
float	NoiseFractal2D_PO (NoiseParams *np, float x, float xoff, float y, float yoff, s32 seed)
float	NoiseFractal3D_PO (NoiseParams *np, float x, float xoff, float y, float yoff, float z, float zoff, s32 seed)
float	noise2d (int x, int y, s32 seed)
float	noise3d (int x, int y, int z, s32 seed)
float	noise2d_value (float x, float y, s32 seed, bool eased=true)
float	noise3d_value (float x, float y, float z, s32 seed, bool eased=false)
float	noise2d_fractal (float x, float y, s32 seed, int octaves, float persistence, bool eased=true)
float	easeCurve (float t)
float	contour (float v)

Variables
const FlagDesc	flagdesc_noiseparams []

Macro Definition Documentation

NOISE_FLAG_ABSVALUE

#define NOISE_FLAG_ABSVALUE   0x04

Referenced by NoiseFractal2D(), NoiseFractal3D(), and Noise::updateResults().

NOISE_FLAG_DEFAULTS

#define NOISE_FLAG_DEFAULTS   0x01

Referenced by Settings::getNoiseParamsFromGroup(), NoiseFractal2D(), read_noiseparams(), and Noise::valueMap2D().

NOISE_FLAG_EASED

#define NOISE_FLAG_EASED   0x02

Referenced by NoiseFractal2D(), NoiseFractal3D(), TestMapSettingsManager::testMapSettingsManager(), Noise::valueMap2D(), and Noise::valueMap3D().

NOISE_FLAG_POINTBUFFER

#define NOISE_FLAG_POINTBUFFER   0x08

NOISE_FLAG_SIMPLEX

#define NOISE_FLAG_SIMPLEX   0x10

Function Documentation

contour()

float contour

(

float

v

)

Referenced by OreVein::generate(), and CavesNoiseIntersection::generateCaves().

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easeCurve()

float easeCurve ( float t )

inline

Referenced by biLinearInterpolation(), Sky::render(), triLinearInterpolation(), and Camera::update().

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noise2d()

float noise2d	(	int	x,
		int	y,
		s32	seed )

References NOISE_MAGIC_SEED, NOISE_MAGIC_X, NOISE_MAGIC_Y, x, and y.

Referenced by MapgenV6::getBiome(), noise2d_value(), TestNoise::testNoise2dAtOriginWithZeroSeed(), TestNoise::testNoise2dWithFunPrimes(), TestNoise::testNoise2dWithMaxSeed(), TestNoise::testNoise3dAtOriginWithZeroSeed(), TestNoise::testNoise3dWithFunPrimes(), and Noise::valueMap2D().

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noise2d_fractal()

float noise2d_fractal	(	float	x,
		float	y,
		s32	seed,
		int	octaves,
		float	persistence,
		bool	eased = true )

References noise2d_value(), x, and y.

Referenced by Clouds::gridFilled().

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noise2d_value()

float noise2d_value	(	float	x,
		float	y,
		s32	seed,
		bool	eased = true )

References biLinearInterpolation(), myfloor, noise2d(), x, and y.

Referenced by noise2d_fractal(), and NoiseFractal2D().

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noise3d()

float noise3d	(	int	x,
		int	y,
		int	z,
		s32	seed )

References NOISE_MAGIC_SEED, NOISE_MAGIC_X, NOISE_MAGIC_Y, NOISE_MAGIC_Z, x, y, and z.

Referenced by noise3d_value(), TestNoise::testNoise3dWithMaxSeed(), and Noise::valueMap3D().

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noise3d_value()

float noise3d_value	(	float	x,
		float	y,
		float	z,
		s32	seed,
		bool	eased = false )

References myfloor, noise3d(), triLinearInterpolation(), x, y, and z.

Referenced by NoiseFractal3D().

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NoiseFractal2D()

float NoiseFractal2D	(	const NoiseParams *	np,
		float	x,
		float	y,
		s32	seed )

References NoiseParams::flags, NoiseParams::lacunarity, noise2d_value(), NOISE_FLAG_ABSVALUE, NOISE_FLAG_DEFAULTS, NOISE_FLAG_EASED, NoiseParams::octaves, NoiseParams::offset, NoiseParams::persist, NoiseParams::scale, NoiseParams::seed, NoiseParams::spread, x, and y.

Referenced by MapgenV7::baseTerrainLevelAtPoint(), BiomeGenOriginal::calcHeatAtPoint(), BiomeGenOriginal::calcHumidityAtPoint(), MapgenV6::generateCaves(), MapgenV6::getHaveAppleTree(), MapgenV7::getMountainTerrainAtPoint(), MapgenCarpathian::getSpawnLevelAtPoint(), MapgenFlat::getSpawnLevelAtPoint(), MapgenFractal::getSpawnLevelAtPoint(), MapgenV5::getSpawnLevelAtPoint(), MapgenV7::getSpawnLevelAtPoint(), MapgenValleys::getSpawnLevelAtPoint(), MapgenV6::getTreeAmount(), LuaValueNoise::l_get_2d(), NoiseFractal2D_PO(), Decoration::placeDeco(), and TestNoise::testNoise2dPoint().

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NoiseFractal2D_PO()

float NoiseFractal2D_PO ( NoiseParams * np, float x, float xoff, float y, float yoff, s32 seed )

inline

References NoiseFractal2D(), NoiseParams::spread, x, and y.

Referenced by MapgenV6::baseTerrainLevelFromNoise().

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NoiseFractal3D()

float NoiseFractal3D	(	const NoiseParams *	np,
		float	x,
		float	y,
		float	z,
		s32	seed )

References NoiseParams::flags, NoiseParams::lacunarity, noise3d_value(), NOISE_FLAG_ABSVALUE, NOISE_FLAG_EASED, NoiseParams::octaves, NoiseParams::offset, NoiseParams::persist, NoiseParams::scale, NoiseParams::seed, NoiseParams::spread, x, y, and z.

Referenced by CavesRandomWalk::carveRoute(), DungeonGen::generate(), OreScatter::generate(), MapgenBasic::generateDungeons(), MapgenV7::getMountainTerrainAtPoint(), MapgenCarpathian::getSpawnLevelAtPoint(), MapgenV5::getSpawnLevelAtPoint(), MapgenValleys::getSpawnLevelAtPoint(), LuaValueNoise::l_get_3d(), MapgenV6::makeChunk(), NoiseFractal3D_PO(), and TestNoise::testNoise3dPoint().

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NoiseFractal3D_PO()

float NoiseFractal3D_PO ( NoiseParams * np, float x, float xoff, float y, float yoff, float z, float zoff, s32 seed )

inline

References NoiseFractal3D(), NoiseParams::spread, x, y, and z.

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Variable Documentation

flagdesc_noiseparams

const FlagDesc flagdesc_noiseparams[]

extern

Referenced by Settings::getNoiseParamsFromGroup(), push_noiseparams(), read_noiseparams(), and Settings::setNoiseParams().