00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015 #ifndef PERLINNOISE2_H
00016 #define PERLINNOISE2_H
00017
00018 #include "pandabase.h"
00019 #include "perlinNoise.h"
00020
00021
00022
00023
00024
00025
00026
00027
00028 class EXPCL_PANDA_MATHUTIL PerlinNoise2 : public PerlinNoise {
00029 PUBLISHED:
00030 INLINE PerlinNoise2();
00031 INLINE PerlinNoise2(double sx, double sy,
00032 int table_size = 256,
00033 unsigned long seed = 0);
00034 INLINE PerlinNoise2(const PerlinNoise2 ©);
00035 INLINE void operator = (const PerlinNoise2 ©);
00036
00037 INLINE void set_scale(double scale);
00038 INLINE void set_scale(double sx, double sy);
00039 INLINE void set_scale(const LVecBase2f &scale);
00040 INLINE void set_scale(const LVecBase2d &scale);
00041
00042 INLINE double noise(double x, double y) const;
00043 INLINE float noise(const LVecBase2f &value) const;
00044 double noise(const LVecBase2d &value) const;
00045
00046 INLINE double operator ()(double x, double y) const;
00047 INLINE float operator ()(const LVecBase2f &value) const;
00048 INLINE double operator ()(const LVecBase2d &value) const;
00049
00050 private:
00051 void init_unscaled_xform();
00052 INLINE static double grad(int hash, double x, double y);
00053
00054 private:
00055 LMatrix3d _unscaled_xform;
00056 LMatrix3d _input_xform;
00057 };
00058
00059 #include "perlinNoise2.I"
00060
00061 #endif
00062