source: trunk/VUT/GtpVisibilityPreprocessor/src/VssPreprocessor.h @ 517

Revision 517, 2.1 KB checked in by mattausch, 19 years ago (diff)
Line 
1#ifndef _VssPreprocessor_H__
2#define _VssPreprocessor_H__
3
4#include <fstream>
5using namespace std;
6
7#include "Preprocessor.h"
8#include "VssRay.h"
9class VssTree;
10class VssTreeLeaf;
11
12
13/** Sampling based visibility preprocessing. The implementation is based on heuristical
14    sampling of view space */
15class VssPreprocessor : public Preprocessor {
16public:
17  int mPass;
18  int mSamplesPerPass;
19  int mVssSamplesPerPass;
20  int mInitialSamples;
21  int mVssSamples;
22  bool mUseImportanceSampling;
23
24  AxisAlignedBox3 *mViewSpaceBox;
25
26  ofstream mStats;
27       
28  ObjectContainer mObjects;
29
30  /// if initial samples should be loaded from file
31  bool mLoadInitialSamples;
32  /// if initial samples should be stored in file
33  bool mStoreInitialSamples;
34  /// if box around view space should be used
35  bool mUseViewSpaceBox;
36  // rays cast during the processing
37  VssRayContainer mVssRays;
38       
39  bool mDelayedViewCellsConstruction;
40
41  VssPreprocessor();
42  ~VssPreprocessor();
43
44  virtual bool ComputeVisibility();
45
46  Vector3
47  GetViewpoint(AxisAlignedBox3 *viewSpaceBox);
48
49  Vector3
50  GetDirection(const Vector3 &viewpoint,
51                           AxisAlignedBox3 *viewSpaceBox
52                           );
53       
54  void
55  SetupRay(Ray &ray,
56                   const Vector3 &point,
57                   const Vector3 &direction
58                   );
59
60
61       
62  int
63  CastRay(
64                  Vector3 &viewPoint,
65                  Vector3 &direction,
66                  VssRayContainer &vssRays
67
68                  );
69
70
71  bool
72  ExportRays(const char *filename,
73                         const VssRayContainer &vssRays,
74                         const int number
75                         );
76
77  int
78  GenerateImportanceRays(VssTree *vssTree,
79                                                 const int desiredSamples,
80                                                 SimpleRayContainer &rays
81                                                 );
82
83
84  bool
85  ExportVssTreeLeaf(char *filename,
86                                        VssTree *tree,
87                                        VssTreeLeaf *leaf);
88
89  void
90  ExportVssTreeLeaves(VssTree *tree, const int number);
91       
92
93  bool
94  ExportVssTree(char *filename,
95                                VssTree *tree,
96                                const Vector3 &dir
97                                );
98
99
100  float
101  GetAvgPvsSize(VssTree *tree,
102                                const vector<AxisAlignedBox3> &viewcells
103                                );
104 
105  void CastRay(const BspTree &tree, const VssRay & vssRay);
106};
107
108
109
110#endif
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