igor::iPerlinNoise Class Reference

#include <iPerlinNoise.h>

Public Member Functions
void	generateBase (uint32 seed)
float64	getValue (const iaVector3d &pos)
float64	getValue (const float64 pos)
float64	getValue (const iaVector3d &pos, int64 octaves, float64 persistence=0.5)
float64	getValue (const float64 pos, int64 octaves, float64 persistence=0.5)
	iPerlinNoise ()
	~iPerlinNoise ()=default

Static Public Attributes
static const int64	RANDOM_NUMBERS_COUNT = 256

Detailed Description

perlin noise

most of the implementation comes from the folowing sources source: http://flafla2.github.io/2014/08/09/perlinnoise.html source: https://gist.github.com/Flafla2/f0260a861be0ebdeef76 Thanks Adrian Biagioli

Constructor & Destructor Documentation

iPerlinNoise()

igor::iPerlinNoise::iPerlinNoise

(

)

generates random numbers

~iPerlinNoise()

igor::iPerlinNoise::~iPerlinNoise ( )

default

does nothing

Member Function Documentation

generateBase()

void igor::iPerlinNoise::generateBase

(

uint32

seed

)

generates pseudo random numbers

Parameters

seed	the seed used for generating the random numbers

getValue() [1/4]

float64 igor::iPerlinNoise::getValue

(

const float64

pos

)

Returns

noise value at specified position

1d version

Parameters

pos	specified position

getValue() [2/4]

float64 igor::iPerlinNoise::getValue	(	const float64	pos,
		int64	octaves,
		float64	persistence = 0.5
	)

Returns

noise value of multiple octaves at specified position in a range of 0.0-1.0

Parameters

pos	specified position
octaves	octaves count
persistence	multiplicator of amplitude between each octave (default 0.5)

getValue() [3/4]

float64 igor::iPerlinNoise::getValue

(

const iaVector3d &

pos

)

Returns

noise value at specified position

3d version

Parameters

pos	specified position

getValue() [4/4]

float64 igor::iPerlinNoise::getValue	(	const iaVector3d &	pos,
		int64	octaves,
		float64	persistence = 0.5
	)

Returns

noise value of multiple octaves at specified position in a range of 0.0-1.0

Parameters

pos	specified position
octaves	octaves count
persistence	multiplicator of amplitude between each octave (default 0.5)

Member Data Documentation

RANDOM_NUMBERS_COUNT

const int64 igor::iPerlinNoise::RANDOM_NUMBERS_COUNT = 256

static

makes pseudo infinite access possible

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The documentation for this class was generated from the following files:

• /home/maddin/dev/Igor/src/igor/igor/generation/iPerlinNoise.h
• /home/maddin/dev/Igor/src/igor/igor/generation/iPerlinNoise.cpp
• /home/maddin/dev/Igor/src/igor/igor/generation/iPerlinNoise.inl