include/PerlinNoise.h

Go to the documentation of this file.

#ifndef PERLINNOISE_H
#define PERLINNOISE_H

#include "OpenEXR/ImathVec.h"
#include "OpenEXR/ImathFun.h"


#define NOISE_PERM_SIZE 512

struct NoiseValues{
    Imath::V3f val[NOISE_PERM_SIZE][3];
};

class PerlinNoise{
public:
    PerlinNoise();

    PerlinNoise(int _dimensions, int _seed = 0);

    void init();

    inline void setSeed(const int _v){m_seed = _v;}
        
    inline void setDimenstions(const int _v){m_dimensions= _v;}

    inline Imath::V3f noise(const Imath::V3f &_point)const
    {
        Imath::V3f v,tmp;
        tmp = doPerlin(_point, m_dimensions, m_seed, v);
        return tmp;
    }

private:
    Imath::V3f doPerlin(const Imath::V3f &_point, int _dims, int _seed, Imath::V3f &_deltaP)const;

        int m_dimensions;
        int m_seed;
        
    Imath::V3f m_values[NOISE_PERM_SIZE][3];
};



#endif // PERLINNOISE_H