mpri-graphics-project/PerlinNoise.hpp

23 lines
711 B
C++

/**
* Perlin Noise implementation for the ground (header file)
**/
#include "Implicit.hpp"
#include <cmath>
#include <random>
#include <vector>
#include <algorithm>
class PerlinNoise : public ImplicitSurface {
std::vector<int> p;
public:
PerlinNoise();
PerlinNoise(unsigned int seed);
double operator() (double _x, double _y, double _z) const;
double noise(double x, double y) const;
Point normal_vector(double x, double y);
private:
double noise(double x, double y, double z) const;
double fade(double t) const;
double lerp(double t, double a, double b) const;
double grad(int hash, double x, double y, double z) const;
};