source: trunk/VUT/GtpVisibilityPreprocessor/src/SamplingPreprocessor.h @ 256

Revision 256, 991 bytes checked in by bittner, 19 years ago (diff)
Line 
1#ifndef _SamplingPreprocessor_H__
2#define _SamplingPreprocessor_H__
3
4#include <fstream>
5using namespace std;
6
7#include "Preprocessor.h"
8
9struct SimpleRay {
10  Vector3 mOrigin;
11  Vector3 mDirection;
12};
13
14/** Sampling based visibility preprocessing. The implementation is based on heuristical
15    sampling of view space */
16class SamplingPreprocessor : public Preprocessor {
17public:
18        int mPass;
19
20  int mSamplesPerPass;
21  int mTotalSamples;
22  int mKdPvsDepth;
23  ofstream mStats;
24  ObjectContainer mObjects;
25
26  SamplingPreprocessor();
27
28  virtual bool ComputeVisibility();
29
30  void
31  SetupRay(Ray &ray, const Vector3 &point, const Vector3 &direction);
32
33  KdNode *
34  GetNodeForPvs(KdLeaf *leaf);
35
36  int
37  AddNodeSamples(Intersectable *object, const Ray &ray);
38
39  void
40  HoleSamplingPass();
41
42        int
43        CastRay(Intersectable *object, Ray &ray);
44
45        void
46        CastEdgeSamples(
47                                                                        Intersectable *object,
48                                                                        const Vector3 &point,
49                                                                        Mesh &mesh,
50                                                                        const int samples
51                                                                        );
52
53};
54
55
56
57#endif
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