31 lines
738 B
C++
31 lines
738 B
C++
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namespace yasim {
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class Turbulence {
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public:
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Turbulence(int gens, int seed);
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~Turbulence();
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void update(double dt, double rate);
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void setMagnitude(double mag) { _mag = mag; }
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void getTurbulence(double* loc, float* turbOut);
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private:
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unsigned int hashrand(unsigned int i);
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float lattice(unsigned int x, unsigned int y);
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float iturb(unsigned int x, unsigned int y);
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float fturb(double a, double b);
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void mkimg(float* buf, int sz);
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float cubenorm(float x, float y, float z);
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void turblut(int x, int y, float* out);
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int _gens;
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int _sz;
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int _seed;
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double _currTime;
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double _mag;
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float _x0, _x1, _y0, _y1, _z0, _z1;
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unsigned char* _data;
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};
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}; // namespace yasim
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