OgreVolumeSource.h
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1 /*
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3 This source file is part of OGRE
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28 #ifndef __Ogre_Volume_Source_H__
29 #define __Ogre_Volume_Source_H__
30 
31 #include <float.h>
32 #include "OgreVector3.h"
34 #include "OgreRay.h"
35 
36 namespace Ogre {
37 namespace Volume {
38 
42  {
43  protected:
44 
54  virtual Vector3 getIntersectionStart(const Ray &ray, Real maxDistance) const;
55 
65  virtual Vector3 getIntersectionEnd(const Ray &ray, Real maxDistance) const;
66 
67  public:
68 
70  static const uint32 VOLUME_CHUNK_ID;
71 
74 
76  static const size_t SERIALIZATION_CHUNK_SIZE;
77 
80  virtual ~Source(void);
81 
88  virtual Vector4 getValueAndGradient(const Vector3 &position) const = 0;
89 
96  virtual Real getValue(const Vector3 &position) const = 0;
97 
116  void serialize(const Vector3 &from, const Vector3 &to, float voxelWidth, const String &file);
117 
130  void serialize(const Vector3 &from, const Vector3 &to, float voxelWidth, Real maxClampedAbsoluteDensity, const String &file);
131 
147  bool getFirstRayIntersection(const Ray &ray, Vector3 &result, Real scale = (Real)1.0, size_t maxIterations = 5000, Real maxDistance = (Real)10000.0) const;
148 
154  };
155 
156 }
157 }
158 
159 #endif
#define _OgreVolumeExport
Representation of a ray in space, i.e.
Definition: OgreRay.h:47
Standard 3-dimensional vector.
Definition: OgreVector3.h:52
4-dimensional homogeneous vector.
Definition: OgreVector4.h:46
Abstract class defining the density function.
virtual Vector3 getIntersectionStart(const Ray &ray, Real maxDistance) const
Gets the start vector of an intersection.
virtual Real getValue(const Vector3 &position) const =0
Gets the density value at a specific position.
static const uint16 VOLUME_CHUNK_VERSION
The version of volume files.
bool getFirstRayIntersection(const Ray &ray, Vector3 &result, Real scale=(Real) 1.0, size_t maxIterations=5000, Real maxDistance=(Real) 10000.0) const
Gets the first intersection of a ray with the volume.
virtual Vector4 getValueAndGradient(const Vector3 &position) const =0
Gets the density value and gradient at a specific position.
void serialize(const Vector3 &from, const Vector3 &to, float voxelWidth, const String &file)
Serializes a volume source to a discrete grid file with deflated compression.
virtual ~Source(void)
Destructor.
static const size_t SERIALIZATION_CHUNK_SIZE
The amount of items being written as one chunk during serialization.
void serialize(const Vector3 &from, const Vector3 &to, float voxelWidth, Real maxClampedAbsoluteDensity, const String &file)
Same as the other serialize function but with a user definable maximum absolute density value.
static const uint32 VOLUME_CHUNK_ID
The id of volume files.
Real getVolumeSpaceToWorldSpaceFactor(void) const
Gets a factor to come from volume coordinate to world coordinate.
virtual Vector3 getIntersectionEnd(const Ray &ray, Real maxDistance) const
Gets the end vector of an intersection.
float Real
Software floating point type.
unsigned short uint16
Definition: OgrePlatform.h:360
unsigned int uint32
Definition: OgrePlatform.h:359
_StringBase String

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