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OgreVolumeSimplexNoise.h
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28 #ifndef __Ogre_Simplex_Noise_H__
29 #define __Ogre_Simplex_Noise_H__
30 
31 #include "OgreVector3.h"
32 
34 
35 namespace Ogre {
36 namespace Volume {
37 
43  {
44  private:
45 
47  static Real F3;
48 
50  static Real G3;
51 
53  long mSeed;
54 
56  short perm[512];
57 
59  short permMod12[512];
60 
61  /* Gets a random long.
62  @return
63  A random long.
64  */
65  unsigned long random(void);
66 
79  inline Real dot(const Vector3 &g, Real x, Real y, Real z) const
80  {
81  return g.x * x + g.y * y + g.z * z;
82  }
83 
86  void init(unsigned long definedSeed);
87 
88  public:
89 
92  SimplexNoise(void);
93 
98  SimplexNoise(unsigned long definedSeed);
99 
110  Real noise(Real xIn, Real yIn, Real zIn) const;
111 
116  long getSeed(void) const;
117 
118  };
119 
120 }
121 }
122 
123 #endif
static Real F3
Skewing and unskewing factor for 3 dimensions.
float Real
Software floating point type.
Real dot(const Vector3 &g, Real x, Real y, Real z) const
Dot product of a gradient with the given values.
static Real G3
Skewing and unskewing factor for 3 dimensions.
Simplex Noise ported from public domain Java Implementation http://webstaff.itn.liu.se/~stegu/simplexnoise/SimplexNoise.java Thanks Stefan Gustavson!
Standard 3-dimensional vector.
Definition: OgreVector3.h:50
#define _OgreVolumeExport