source: GTP/trunk/Lib/Vis/Preprocessing/src/RssPreprocessor.h @ 1931

Revision 1931, 2.4 KB checked in by bittner, 18 years ago (diff)
Line 
1#ifndef _RssPreprocessor_H__
2#define _RssPreprocessor_H__
3
4#include <fstream>
5using namespace std;
6
7#include "Preprocessor.h"
8#include "VssRay.h"
9#include "SamplingStrategy.h"
10
11namespace GtpVisibilityPreprocessor {
12
13
14class RssTree;
15class RssTreeLeaf;
16
17 
18/** Sampling based visibility preprocessing. The implementation is
19        based on heuristical sampling of view space
20*/
21class RssPreprocessor : public Preprocessor {
22 
23public:
24  vector<SamplingStrategy *> mDistributions;
25  MixtureDistribution *mMixtureDistribution;
26  int mSamplesPerPass;
27  int mRssSamplesPerPass;
28  int mInitialSamples;
29  int mRssSamples;
30  bool mUseImportanceSampling;
31  bool mUseRssTree;
32
33  bool mExportPvs;
34  bool mExportRssTree;
35
36  bool mUseViewcells;
37  bool mUpdateSubdivision;
38
39  bool mObjectBasedSampling;
40  bool mDirectionalSampling;
41 
42  //AxisAlignedBox3 *mViewSpaceBox;
43
44 
45  RssTree *mRssTree;
46
47  // rays cast during the processing
48  VssRayContainer mVssRays;
49       
50   /// if initial samples should be loaded from file
51  bool mLoadInitialSamples;
52  /// if initial samples should be stored in file
53  bool mStoreInitialSamples;
54
55  RssPreprocessor();
56  ~RssPreprocessor();
57
58  virtual bool ComputeVisibility();
59
60#if 0 // matt:: moved up into preprocessor
61  int
62  CastRay(
63                  Vector3 &viewPoint,
64                  Vector3 &direction,
65                  const float probability,
66                  VssRayContainer &vssRays
67                  );
68#endif         
69  virtual bool BuildBspTree() { return false; }
70 
71
72
73  bool
74  ExportRayAnimation(const char *filename,
75                                         const vector<VssRayContainer> &vssRays
76                                         );
77
78  void
79  ExportObjectRays(VssRayContainer &rays,
80                                   const int objectId);
81       
82  int
83  GenerateImportanceRays(RssTree *vssTree,
84                                                 const int desiredSamples,
85                                                 SimpleRayContainer &rays
86                                                 );
87
88
89  bool
90  ExportRssTreeLeaf(char *filename,
91                                        RssTree *tree,
92                                        RssTreeLeaf *leaf);
93
94  void
95  ExportRssTreeLeaves(RssTree *tree, const int number);
96       
97
98  bool
99  ExportRssTree(char *filename,
100                                RssTree *tree,
101                                const Vector3 &dir
102                                );
103
104
105  float
106  GetAvgPvsSize(RssTree *tree,
107                                const vector<AxisAlignedBox3> &viewcells
108                                );
109 
110
111  void
112  ExportPvs(char *filename,
113                        RssTree *rssTree
114                        );
115
116
117
118  /** Redefininition of the get sample rays method from the preprocessor */
119  int
120  GenerateRays(const int number,
121                           SamplingStrategy &strategy,
122                           SimpleRayContainer &rays);
123 
124};
125
126
127};
128
129#endif
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