KiCad PCB EDA Suite
PerlinNoise.h
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24
43#include <vector>
44
45// THIS CLASS IS A TRANSLATION TO C++11 FROM THE REFERENCE
46// JAVA IMPLEMENTATION OF THE IMPROVED PERLIN FUNCTION (see http://mrl.nyu.edu/~perlin/noise/)
47// THE ORIGINAL JAVA IMPLEMENTATION IS COPYRIGHT 2002 KEN PERLIN
48
49// I ADDED AN EXTRA METHOD THAT GENERATES A NEW PERMUTATION VECTOR
50// (THIS IS NOT PRESENT IN THE ORIGINAL IMPLEMENTATION)
51
52#ifndef PERLINNOISE_H
53#define PERLINNOISE_H
54
56{
57public:
62
66 PerlinNoise( unsigned int seed );
67
68 // Returns between 0.0f and 1.0f
69 float noise( float x, float y, float z ) const;
70 float noise( float x, float y ) const;
71
72private:
73 float fade( float t ) const;
74 float lerp( float t, float a, float b ) const;
75 float grad( int hash, float x, float y, float z ) const;
76 float grad( int hash, float x, float y ) const;
77
78 // The permutation vector
79 std::vector<int> p;
80};
81
82#endif
float lerp(float t, float a, float b) const
PerlinNoise()
Initialize with the reference values for the permutation vector.
Definition: PerlinNoise.cpp:55
float grad(int hash, float x, float y, float z) const
std::vector< int > p
Definition: PerlinNoise.h:79
float noise(float x, float y, float z) const
float fade(float t) const