[3242] | 1 | #ifndef __PVS_H
|
---|
| 2 | #define __PVS_H
|
---|
| 3 |
|
---|
[3243] | 4 | #include "common.h"
|
---|
[3259] | 5 | #include "Bvh.h"
|
---|
[3243] | 6 |
|
---|
[3242] | 7 | namespace CHCDemoEngine
|
---|
| 8 | {
|
---|
| 9 |
|
---|
[3259] | 10 | class BvhNode;
|
---|
| 11 | class Bvh;
|
---|
| 12 |
|
---|
[3287] | 13 | //#define USE_TIMESTAMPS
|
---|
[3285] | 14 |
|
---|
[3284] | 15 | struct PvsEntry
|
---|
| 16 | {
|
---|
| 17 | PvsEntry(SceneEntity *ent, float t):
|
---|
| 18 | mEntity(ent)
|
---|
[3285] | 19 | #ifdef USE_TIMESTAMPS
|
---|
| 20 | , mTimeStamp(t)
|
---|
| 21 | #endif
|
---|
[3284] | 22 | {}
|
---|
[3259] | 23 |
|
---|
[3284] | 24 | friend bool operator<(const PvsEntry &a, const PvsEntry &b);
|
---|
| 25 |
|
---|
| 26 |
|
---|
| 27 | ///////////////
|
---|
| 28 |
|
---|
| 29 | SceneEntity *mEntity;
|
---|
[3285] | 30 | #ifdef USE_TIMESTAMPS
|
---|
| 31 | float mTimeStamp;
|
---|
| 32 | #endif
|
---|
[3284] | 33 | };
|
---|
| 34 |
|
---|
| 35 |
|
---|
| 36 |
|
---|
| 37 |
|
---|
| 38 | typedef std::vector<PvsEntry> PvsEntryContainer;
|
---|
| 39 |
|
---|
| 40 |
|
---|
[3259] | 41 | /** Class representing the Potentially Visible Set (PVS) from a view cell.
|
---|
[3242] | 42 | */
|
---|
| 43 | class Pvs
|
---|
| 44 | {
|
---|
| 45 | public:
|
---|
| 46 |
|
---|
[3259] | 47 | void Clear();
|
---|
[3242] | 48 |
|
---|
[3259] | 49 | bool Empty() const;
|
---|
[3284] | 50 | /** Convencience method adding all scene entities associated with a bvh node.
|
---|
| 51 | */
|
---|
| 52 | void AddEntry(Bvh *bvh, BvhNode *node, float timeStamp = -1);
|
---|
[3242] | 53 |
|
---|
[3259] | 54 | int GetSize() const;
|
---|
[3242] | 55 |
|
---|
[3284] | 56 | inline SceneEntity *GetEntity(int i) const;
|
---|
| 57 |
|
---|
| 58 | inline PvsEntry GetEntry(int i) const;
|
---|
[3242] | 59 |
|
---|
[3284] | 60 | inline void AddEntry(const PvsEntry &entry);
|
---|
| 61 | /* Sort entries by timestamp
|
---|
| 62 | */
|
---|
| 63 | void Sort();
|
---|
[3242] | 64 |
|
---|
[3259] | 65 |
|
---|
[3242] | 66 | protected:
|
---|
| 67 |
|
---|
[3283] | 68 | /// vector of PVS entries
|
---|
[3284] | 69 | PvsEntryContainer mEntries;
|
---|
[3242] | 70 | };
|
---|
| 71 |
|
---|
[3259] | 72 |
|
---|
[3284] | 73 | inline SceneEntity *Pvs::GetEntity(int i) const
|
---|
[3259] | 74 | {
|
---|
[3284] | 75 | return mEntries[i].mEntity;
|
---|
| 76 | }
|
---|
| 77 |
|
---|
| 78 |
|
---|
| 79 | inline PvsEntry Pvs::GetEntry(int i) const
|
---|
| 80 | {
|
---|
[3259] | 81 | return mEntries[i];
|
---|
[3242] | 82 | }
|
---|
| 83 |
|
---|
[3259] | 84 |
|
---|
[3284] | 85 | inline void Pvs::AddEntry(const PvsEntry &entry)
|
---|
[3259] | 86 | {
|
---|
[3284] | 87 | mEntries.push_back(entry);
|
---|
[3259] | 88 | }
|
---|
| 89 |
|
---|
| 90 |
|
---|
| 91 | inline int Pvs::GetSize() const
|
---|
| 92 | {
|
---|
| 93 | return (int)mEntries.size();
|
---|
| 94 | }
|
---|
| 95 |
|
---|
| 96 |
|
---|
[3284] | 97 | inline void Pvs::AddEntry(Bvh *bvh, BvhNode *node, float timeStamp)
|
---|
[3259] | 98 | {
|
---|
| 99 | int geometrySize;
|
---|
| 100 | SceneEntity **entities;
|
---|
| 101 | entities = bvh->GetGeometry(node, geometrySize);
|
---|
| 102 |
|
---|
| 103 | for (int i = 0; i < geometrySize; ++ i)
|
---|
| 104 | {
|
---|
[3284] | 105 | AddEntry(PvsEntry(entities[i], timeStamp));
|
---|
[3259] | 106 | }
|
---|
| 107 | }
|
---|
| 108 |
|
---|
| 109 |
|
---|
[3284] | 110 |
|
---|
[3259] | 111 | }
|
---|
| 112 |
|
---|
[3243] | 113 | #endif |
---|