NoiseSampler.h

#pragma once
 
#include <vector>
 
#include <glm/glm.hpp>
 
namespace Cogs
{
  namespace Core
  {
    class NoiseSampler
    {
    public:
      NoiseSampler(unsigned int seed = 42);
 
      float gradNoise2D(glm::vec2 t, glm::ivec2 period);
 
      void gradNoise2D(float* dst, float frequency, int w, int h);
 
      void gradNoise2DSum(float* dst, float frequency_min, float frequency_max, int w, int h);
 
      void gradNoise2DTurbulence(float* dst, float frequency_min, float frequency_max, int w, int h);
 
    private:
      std::vector<float> gradient2DTable;
      std::vector<unsigned char> permutationTable;
    };
  } // namespace Core
} // namespace Cogs