cloudy-raytracer/common/noise/noise.h

#ifndef CG1_TRACER_NOISE_H
#define CG1_TRACER_NOISE_H

#include <vector>
#include "common/vector3d.h"

class Vector3d;

class Noise
{
public:
    Noise(int size);

    float getNoise(Vector3d point) const;    // Parameters in [0,1], Output in [0,1]
    float getNoise(float x, float y, float z) const;    // Parameters in [0,1], Output in [0,1]

    bool invert = false;

protected:
    std::vector<float> noiseMap;    // Noise map
    int size;                       // Size of the cloudNoise map

    void generateNoiseMap(int size);
    void setNoise(int x, int y, int z, float value);    // Parameters in [0,size]

    float getCalculatedNoise(int x, int y, int z) const;

    float interpolate(float a0, float a1, float w) const;

    float fitToNoise(float point) const;
};

#endif //CG1_TRACER_NOISE_H