[235] | 1 | #include "ViewCell.h"
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| 2 | #include "Mesh.h"
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[308] | 3 | #include "Intersectable.h"
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[235] | 4 | #include "MeshKdTree.h"
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| 5 | #include "Triangle3.h"
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[580] | 6 | #include "common.h"
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| 7 | #include "Environment.h"
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| 8 | #include "ViewCellsManager.h"
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| 9 | #include "Exporter.h"
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| 10 |
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[463] | 11 | #include <time.h>
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[462] | 12 | #include <iomanip>
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[580] | 13 | #include <stack>
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[235] | 14 |
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[580] | 15 |
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| 16 |
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| 17 | template <typename T> class myless
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| 18 | {
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| 19 | public:
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| 20 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 21 | bool operator() (T v1, T v2) const
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| 22 | {
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[600] | 23 | return (v1->GetMergeCost() < v2->GetMergeCost());
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[580] | 24 | }
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| 25 | };
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| 26 |
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| 27 |
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| 28 | typedef priority_queue<ViewCell *, vector<ViewCell *>, myless<vector<ViewCell *>::value_type> > TraversalQueue;
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| 29 |
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| 30 | int ViewCell::sMailId = 21843194198;
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| 31 | int ViewCell::sReservedMailboxes = 1;
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[660] | 32 | int ViewCell::sLastUpdated = 0;
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[580] | 33 |
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| 34 | //int upperPvsLimit = 120;
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| 35 | //int lowerPvsLimit = 5;
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| 36 |
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| 37 | float MergeCandidate::sRenderCostWeight = 0;
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| 38 |
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| 39 |
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| 40 | // pvs penalty can be different from pvs size
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| 41 | inline float EvalPvsPenalty(const int pvs,
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| 42 | const int lower,
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| 43 | const int upper)
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| 44 | {
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| 45 | // clamp to minmax values
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[601] | 46 | /*if (pvs < lower)
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[580] | 47 | return (float)lower;
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| 48 | if (pvs > upper)
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| 49 | return (float)upper;
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[601] | 50 | */
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[580] | 51 | return (float)pvs;
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| 52 | }
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| 53 |
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| 54 |
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[585] | 55 | inline int CountDiffPvs(ViewCell *vc)
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| 56 | {
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| 57 | int count = 0;
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| 58 |
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| 59 | ObjectPvsMap::const_iterator it, it_end = vc->GetPvs().mEntries.end();
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| 60 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
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| 61 | {
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| 62 | if (!(*it).first->Mailed())
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| 63 | {
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| 64 | (*it).first->Mail();
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| 65 | ++ count;
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| 66 | }
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| 67 | }
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| 68 |
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| 69 | return count;
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| 70 | }
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| 71 |
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| 72 |
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[580] | 73 | int ComputeMergedPvsSize(const ObjectPvs &pvs1, const ObjectPvs &pvs2)
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| 74 | {
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| 75 | int pvs = pvs1.GetSize();
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| 76 |
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| 77 | // compute new pvs size
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| 78 | ObjectPvsMap::const_iterator it, it_end = pvs1.mEntries.end();
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| 79 |
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| 80 | Intersectable::NewMail();
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| 81 |
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| 82 | for (it = pvs1.mEntries.begin(); it != it_end; ++ it)
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| 83 | {
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| 84 | (*it).first->Mail();
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| 85 | }
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| 86 |
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| 87 | it_end = pvs2.mEntries.end();
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| 88 |
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| 89 | for (it = pvs2.mEntries.begin(); it != it_end; ++ it)
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| 90 | {
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| 91 | Intersectable *obj = (*it).first;
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| 92 | if (!obj->Mailed())
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| 93 | ++ pvs;
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| 94 | }
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| 95 |
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| 96 | return pvs;
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| 97 | }
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| 98 |
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| 99 |
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[478] | 100 | ViewCell::ViewCell():
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| 101 | MeshInstance(NULL),
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| 102 | mPiercingRays(0),
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[551] | 103 | mArea(-1),
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| 104 | mVolume(-1),
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[580] | 105 | mValid(true),
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| 106 | mParent(NULL),
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[600] | 107 | mMergeCost(0),
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[590] | 108 | mIsActive(false)
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[265] | 109 | {
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| 110 | }
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[235] | 111 |
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[478] | 112 | ViewCell::ViewCell(Mesh *mesh):
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| 113 | MeshInstance(mesh),
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| 114 | mPiercingRays(0),
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[551] | 115 | mArea(-1),
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| 116 | mVolume(-1),
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[580] | 117 | mValid(true),
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| 118 | mParent(NULL),
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[600] | 119 | mMergeCost(0),
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[660] | 120 | mIsActive(false),
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| 121 | mLastUpdated(sLastUpdated)
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[372] | 122 | {
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| 123 | }
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| 124 |
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[503] | 125 |
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[469] | 126 | const ObjectPvs &ViewCell::GetPvs() const
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[419] | 127 | {
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| 128 | return mPvs;
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| 129 | }
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| 130 |
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[469] | 131 | ObjectPvs &ViewCell::GetPvs()
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[372] | 132 | {
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| 133 | return mPvs;
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| 134 | }
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| 135 |
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[503] | 136 |
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[235] | 137 | int ViewCell::Type() const
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| 138 | {
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[308] | 139 | return VIEW_CELL;
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[235] | 140 | }
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| 141 |
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[503] | 142 |
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[469] | 143 | float ViewCell::GetVolume() const
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| 144 | {
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| 145 | return mVolume;
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| 146 | }
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| 147 |
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[478] | 148 |
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[469] | 149 | void ViewCell::SetVolume(float volume)
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| 150 | {
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| 151 | mVolume = volume;
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| 152 | }
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| 153 |
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[503] | 154 |
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| 155 | void ViewCell::SetMesh(Mesh *mesh)
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| 156 | {
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| 157 | mMesh = mesh;
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| 158 | }
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| 159 |
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| 160 |
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[478] | 161 | float ViewCell::GetArea() const
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| 162 | {
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| 163 | return mArea;
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| 164 | }
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| 165 |
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| 166 |
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| 167 | void ViewCell::SetArea(float area)
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| 168 | {
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| 169 | mArea = area;
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| 170 | }
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| 171 |
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| 172 |
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[547] | 173 | void ViewCell::SetValid(const bool valid)
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| 174 | {
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[564] | 175 | mValid = valid;
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[547] | 176 | }
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| 177 |
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| 178 |
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| 179 | bool ViewCell::GetValid() const
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| 180 | {
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| 181 | return mValid;
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| 182 | }
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| 183 |
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| 184 |
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[580] | 185 | /*bool ViewCell::IsLeaf() const
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| 186 | {
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| 187 | return true;
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| 188 | }*/
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| 189 |
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| 190 |
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| 191 | void ViewCell::SetParent(ViewCellInterior *parent)
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| 192 | {
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| 193 | mParent = parent;
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| 194 | }
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| 195 |
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| 196 |
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| 197 | bool ViewCell::IsRoot() const
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| 198 | {
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| 199 | return !mParent;
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| 200 | }
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| 201 |
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| 202 |
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| 203 | ViewCellInterior *ViewCell::GetParent() const
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| 204 | {
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| 205 | return mParent;
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| 206 | }
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| 207 |
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| 208 |
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[600] | 209 | void ViewCell::SetMergeCost(const float mergeCost)
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[580] | 210 | {
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[600] | 211 | mMergeCost = mergeCost;
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[580] | 212 | }
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| 213 |
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| 214 |
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[600] | 215 | float ViewCell::GetMergeCost() const
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[580] | 216 | {
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[600] | 217 | return mMergeCost;
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[580] | 218 | }
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| 219 |
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| 220 |
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[660] | 221 | void ViewCell::SetActive()
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| 222 | {
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| 223 | mIsActive = true;
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| 224 | mLastUpdated = sLastUpdated;
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| 225 | }
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[581] | 226 |
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[660] | 227 |
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| 228 | bool ViewCell::IsActive() const
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| 229 | {
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| 230 | return mIsActive && (mLastUpdated == sLastUpdated);
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| 231 | }
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| 232 |
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| 233 |
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[462] | 234 | /************************************************************************/
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[580] | 235 | /* class ViewCellInterior implementation */
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| 236 | /************************************************************************/
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| 237 |
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| 238 |
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| 239 | ViewCellInterior::ViewCellInterior()
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| 240 | {
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| 241 | }
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| 242 |
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| 243 |
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| 244 | ViewCellInterior::~ViewCellInterior()
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| 245 | {
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| 246 | ViewCellContainer::const_iterator it, it_end = mChildren.end();
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| 247 |
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| 248 | for (it = mChildren.begin(); it != it_end; ++ it)
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| 249 | delete (*it);
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| 250 | }
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| 251 |
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| 252 |
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| 253 | ViewCellInterior::ViewCellInterior(Mesh *mesh):
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| 254 | ViewCell(mesh)
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| 255 | {
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| 256 | }
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| 257 |
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| 258 |
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| 259 | bool ViewCellInterior::IsLeaf() const
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| 260 | {
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| 261 | return false;
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| 262 | }
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| 263 |
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| 264 |
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[650] | 265 | void ViewCellInterior::SetupChildLink(ViewCell *vc)
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[580] | 266 | {
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[650] | 267 | mChildren.push_back(vc);
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| 268 | vc->mParent = this;
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[580] | 269 | }
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| 270 |
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| 271 |
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[586] | 272 | void ViewCellInterior::RemoveChildLink(ViewCell *l)
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| 273 | {
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| 274 | // erase leaf from old view cell
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| 275 | ViewCellContainer::iterator it = mChildren.begin();
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[580] | 276 |
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[586] | 277 | for (; (*it) != l; ++ it);
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| 278 | if (it == mChildren.end())
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| 279 | Debug << "error" << endl;
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| 280 | else
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| 281 | mChildren.erase(it);
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| 282 | }
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| 283 |
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[580] | 284 | /************************************************************************/
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[462] | 285 | /* class ViewCellsStatistics implementation */
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| 286 | /************************************************************************/
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| 287 |
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[580] | 288 |
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| 289 |
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| 290 |
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[463] | 291 | void ViewCellsStatistics::Print(ostream &app) const
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| 292 | {
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| 293 | app << "=========== View Cells Statistics ===============\n";
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| 294 |
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| 295 | app << setprecision(4);
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| 296 |
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| 297 | //app << "#N_CTIME ( Construction time [s] )\n" << Time() << " \n";
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| 298 |
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[613] | 299 | app << "#N_OVERALLPVS ( objects in PVS )\n" << pvsSize << endl;
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[463] | 300 |
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| 301 | app << "#N_PMAXPVS ( largest PVS )\n" << maxPvs << endl;
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| 302 |
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| 303 | app << "#N_PMINPVS ( smallest PVS )\n" << minPvs << endl;
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| 304 |
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| 305 | app << "#N_PAVGPVS ( average PVS )\n" << AvgPvs() << endl;
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| 306 |
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[485] | 307 | app << "#N_PEMPTYPVS ( view cells with empty PVS )\n" << emptyPvs << endl;
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[463] | 308 |
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| 309 | app << "#N_VIEWCELLS ( number of view cells)\n" << viewCells << endl;
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| 310 |
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| 311 | app << "#N_AVGLEAVES (average number of leaves per view cell )\n" << AvgLeaves() << endl;
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| 312 |
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| 313 | app << "#N_MAXLEAVES ( maximal number of leaves per view cell )\n" << maxLeaves << endl;
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| 314 |
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[564] | 315 | app << "#N_INVALID ( number of invalid view cells )\n" << invalid << endl;
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| 316 |
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[463] | 317 | app << "========== End of View Cells Statistics ==========\n";
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[580] | 318 | }
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| 319 |
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| 320 |
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| 321 | /*************************************************************************/
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| 322 | /* class ViewCellsTree implementation */
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| 323 | /*************************************************************************/
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| 324 |
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| 325 |
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| 326 | ViewCellsTree::ViewCellsTree(ViewCellsManager *vcm):
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| 327 | mRoot(NULL),
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| 328 | mUseAreaForPvs(false),
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[584] | 329 | mViewCellsManager(vcm),
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| 330 | mIsCompressed(false)
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[580] | 331 | {
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| 332 | environment->GetBoolValue("ViewCells.Visualization.exportMergedViewCells", mExportMergedViewCells);
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[582] | 333 | environment->GetFloatValue("ViewCells.maxStaticMemory", mMaxMemory);
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[580] | 334 |
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| 335 | //-- merge options
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| 336 | environment->GetFloatValue("ViewCells.PostProcess.renderCostWeight", mRenderCostWeight);
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| 337 | environment->GetIntValue("ViewCells.PostProcess.minViewCells", mMergeMinViewCells);
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| 338 | environment->GetFloatValue("ViewCells.PostProcess.maxCostRatio", mMergeMaxCostRatio);
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[586] | 339 | environment->GetBoolValue("ViewCells.PostProcess.refine", mRefineViewCells);
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[582] | 340 |
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[586] | 341 |
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[582] | 342 | Debug << "========= view cell tree options ================\n";
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| 343 | Debug << "minimum view cells: " << mMergeMinViewCells << endl;
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| 344 | Debug << "max cost ratio: " << mMergeMaxCostRatio << endl;
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| 345 | Debug << "max memory: " << mMaxMemory << endl;
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[586] | 346 | Debug << "refining view cells: " << mRefineViewCells << endl;
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[694] | 347 | Debug << "********* view cell tree options ***************\n";
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[582] | 348 |
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[580] | 349 | MergeCandidate::sRenderCostWeight = mRenderCostWeight;
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| 350 | }
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| 351 |
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| 352 |
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[582] | 353 | // return memory usage in MB
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| 354 | float ViewCellsTree::GetMemUsage() const
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| 355 | {
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| 356 | return 0;
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| 357 | /*(sizeof(ViewCellsTree) +
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| 358 | mBspStats.Leaves() * sizeof(BspLeaf) +
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| 359 | mBspStats.Interior() * sizeof(BspInterior) +
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| 360 | mBspStats.accumRays * sizeof(RayInfo)) / (1024.0f * 1024.0f);*/
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| 361 | }
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| 362 |
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| 363 |
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[580] | 364 | int ViewCellsTree::GetSize(ViewCell *vc) const
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| 365 | {
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| 366 | int vcSize = 0;
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| 367 |
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| 368 | stack<ViewCell *> tstack;
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| 369 |
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| 370 | tstack.push(vc);
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| 371 |
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| 372 | while (!tstack.empty())
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| 373 | {
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| 374 | ViewCell *vc = tstack.top();
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| 375 | tstack.pop();
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| 376 |
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| 377 | if (vc->IsLeaf())
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| 378 | {
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| 379 | ++ vcSize;
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| 380 | }
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| 381 | else
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| 382 | {
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| 383 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
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| 384 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
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| 385 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
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| 386 | tstack.push(*it);
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| 387 |
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| 388 | }
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| 389 | }
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| 390 |
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| 391 | return vcSize;
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| 392 | }
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| 393 |
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| 394 |
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| 395 | void ViewCellsTree::CollectLeaves(ViewCell *vc, ViewCellContainer &leaves) const
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| 396 | {
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| 397 | stack<ViewCell *> tstack;
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| 398 |
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| 399 | tstack.push(vc);
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| 400 |
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| 401 | while (!tstack.empty())
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| 402 | {
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| 403 | ViewCell *vc = tstack.top();
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| 404 | tstack.pop();
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| 405 |
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| 406 | if (vc->IsLeaf())
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| 407 | {
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| 408 | leaves.push_back(vc);
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| 409 | }
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| 410 | else
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| 411 | {
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| 412 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
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| 413 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
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[664] | 414 |
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[580] | 415 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
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[664] | 416 | {
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[580] | 417 | tstack.push(*it);
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[664] | 418 | }
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[580] | 419 |
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| 420 | }
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| 421 | }
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| 422 | }
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| 423 |
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| 424 |
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| 425 | ViewCellsTree::~ViewCellsTree()
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| 426 | {
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| 427 | DEL_PTR(mRoot);
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| 428 | }
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| 429 |
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| 430 |
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| 431 | int ViewCellsTree::ConstructMergeTree(const VssRayContainer &rays,
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| 432 | const ObjectContainer &objects)
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| 433 | {
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[582] | 434 | mNumActiveViewCells = (int)mViewCellsManager->GetViewCells().size();
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[580] | 435 |
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| 436 | float variance = 0;
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| 437 | int totalPvs = 0;
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[600] | 438 | float totalRenderCost = 0;
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[580] | 439 |
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| 440 | //-- compute statistics values of initial view cells
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[600] | 441 | mViewCellsManager->EvaluateRenderStatistics(totalRenderCost,
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[580] | 442 | mExpectedCost,
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| 443 | mDeviation,
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| 444 | variance,
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| 445 | totalPvs,
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| 446 | mAvgRenderCost);
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| 447 |
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| 448 |
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| 449 | //-- fill merge queue
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| 450 | vector<MergeCandidate> candidates;
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| 451 |
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| 452 | mViewCellsManager->CollectMergeCandidates(rays, candidates);
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| 453 | while(!candidates.empty())
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| 454 | {
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| 455 | MergeCandidate mc = candidates.back();
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| 456 | candidates.pop_back();
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| 457 | EvalMergeCost(mc);
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| 458 | mMergeQueue.push(mc);
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| 459 | }
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| 460 |
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| 461 | Debug << "************************* merge ***********************************" << endl;
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| 462 | Debug << "deviation: " << mDeviation << endl;
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| 463 | Debug << "avg render cost: " << mAvgRenderCost << endl;
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[600] | 464 | Debug << "expected cost: " << mExpectedCost << endl;
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[580] | 465 |
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| 466 |
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| 467 | ViewCellsManager::PvsStatistics pvsStats;
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| 468 | mViewCellsManager->GetPvsStatistics(pvsStats);
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| 469 |
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[605] | 470 | //static float expectedValue = pvsStats.avgPvs;
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[580] | 471 |
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| 472 | // the current view cells are kept in this container
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| 473 | // we start with the current view cells from the
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| 474 | // view cell manager. They will change with
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| 475 | // subsequent merges
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[582] | 476 | ViewCellContainer &activeViewCells = mViewCellsManager->GetViewCells();
|
---|
[580] | 477 |
|
---|
| 478 |
|
---|
| 479 | ViewCell::NewMail();
|
---|
| 480 |
|
---|
| 481 | MergeStatistics mergeStats;
|
---|
| 482 | mergeStats.Start();
|
---|
| 483 |
|
---|
| 484 | long startTime = GetTime();
|
---|
| 485 |
|
---|
| 486 | mergeStats.collectTime = TimeDiff(startTime, GetTime());
|
---|
| 487 | mergeStats.candidates = (int)mMergeQueue.size();
|
---|
| 488 | startTime = GetTime();
|
---|
| 489 |
|
---|
| 490 | // frequency stats are updated
|
---|
[650] | 491 | const int statsOut = 500;
|
---|
[580] | 492 |
|
---|
| 493 | // passes are needed for statistics, because we don't want to record
|
---|
| 494 | // every merge
|
---|
| 495 | int pass = 0;
|
---|
| 496 | int mergedPerPass = 0;
|
---|
| 497 | float realExpectedCost = mExpectedCost;
|
---|
| 498 | float realAvgRenderCost = mAvgRenderCost;
|
---|
[582] | 499 | int realNumActiveViewCells = mNumActiveViewCells;
|
---|
[580] | 500 |
|
---|
| 501 | // maximal ratio of old expected render cost to expected render
|
---|
| 502 | // when the the render queue has to be reset.
|
---|
| 503 | float avgCostMaxDeviation;
|
---|
| 504 | int maxMergesPerPass;
|
---|
[582] | 505 | int numMergedViewCells = 0;
|
---|
[580] | 506 |
|
---|
| 507 | environment->GetIntValue("ViewCells.PostProcess.maxMergesPerPass", maxMergesPerPass);
|
---|
| 508 | environment->GetFloatValue("ViewCells.PostProcess.avgCostMaxDeviation", avgCostMaxDeviation);
|
---|
| 509 |
|
---|
| 510 | cout << "actual merge starts now ... " << endl;
|
---|
[604] | 511 |
|
---|
[580] | 512 | //-- use priority queue to merge leaf pairs
|
---|
[612] | 513 |
|
---|
[600] | 514 | //const float maxAvgCost = 350;
|
---|
| 515 | while (!mMergeQueue.empty())//NumActiveViewCells > mMergeMinViewCells))
|
---|
[580] | 516 | {
|
---|
| 517 | //-- reset merge queue if the ratio of current expected cost / real expected cost
|
---|
| 518 | // too small or after a given number of merges
|
---|
| 519 | if ((mergedPerPass > maxMergesPerPass) ||
|
---|
| 520 | (avgCostMaxDeviation > mAvgRenderCost / realAvgRenderCost))
|
---|
| 521 | {
|
---|
| 522 | Debug << "************ reset queue *****************\n"
|
---|
| 523 | << "ratios: " << avgCostMaxDeviation
|
---|
| 524 | << " real avg render cost " << realAvgRenderCost << " average render cost " << mAvgRenderCost
|
---|
| 525 | << " merged per pass : " << mergedPerPass << " of maximal " << maxMergesPerPass << endl;
|
---|
| 526 |
|
---|
| 527 | Debug << "Values before reset: "
|
---|
| 528 | << " erc: " << mExpectedCost
|
---|
| 529 | << " avgrc: " << mAvgRenderCost
|
---|
| 530 | << " dev: " << mDeviation << endl;
|
---|
| 531 |
|
---|
| 532 | // adjust render cost
|
---|
| 533 | ++ pass;
|
---|
| 534 |
|
---|
| 535 | mergedPerPass = 0;
|
---|
| 536 | mExpectedCost = realExpectedCost;
|
---|
| 537 | mAvgRenderCost = realAvgRenderCost;
|
---|
[582] | 538 | mNumActiveViewCells = realNumActiveViewCells;
|
---|
[580] | 539 |
|
---|
[582] | 540 | const int numMergedViewCells = UpdateActiveViewCells(activeViewCells);
|
---|
| 541 |
|
---|
[586] | 542 | // refines the view cells
|
---|
| 543 | // then priorities are recomputed
|
---|
| 544 | // and the candidates are put back into merge queue
|
---|
| 545 | if (mRefineViewCells)
|
---|
| 546 | RefineViewCells(rays, objects);
|
---|
| 547 | else
|
---|
| 548 | ResetMergeQueue();
|
---|
[580] | 549 |
|
---|
| 550 | Debug << "Values after reset: "
|
---|
| 551 | << " erc: " << mExpectedCost
|
---|
| 552 | << " avg: " << mAvgRenderCost
|
---|
| 553 | << " dev: " << mDeviation << endl;
|
---|
| 554 |
|
---|
| 555 | if (mExportMergedViewCells)
|
---|
| 556 | {
|
---|
[582] | 557 | ExportMergedViewCells(activeViewCells, objects, numMergedViewCells);
|
---|
[580] | 558 | }
|
---|
| 559 | }
|
---|
| 560 |
|
---|
| 561 |
|
---|
| 562 | MergeCandidate mc = mMergeQueue.top();
|
---|
| 563 | mMergeQueue.pop();
|
---|
| 564 |
|
---|
[582] | 565 | // both view cells equal
|
---|
| 566 | // NOTE: do I really still need this? probably cannot happen!!
|
---|
[580] | 567 | if (mc.mLeftViewCell == mc.mRightViewCell)
|
---|
| 568 | continue;
|
---|
| 569 |
|
---|
| 570 | if (mc.IsValid())
|
---|
| 571 | {
|
---|
| 572 | ViewCell::NewMail();
|
---|
[600] | 573 |
|
---|
| 574 | //-- update statistical values
|
---|
[582] | 575 | -- realNumActiveViewCells;
|
---|
[580] | 576 | ++ mergeStats.merged;
|
---|
| 577 | ++ mergedPerPass;
|
---|
| 578 |
|
---|
[600] | 579 | const float renderCostIncr = mc.GetRenderCost();
|
---|
| 580 | const float mergeCostIncr = mc.GetMergeCost();
|
---|
[580] | 581 |
|
---|
[600] | 582 | totalRenderCost += renderCostIncr;
|
---|
[580] | 583 | mDeviation += mc.GetDeviationIncr();
|
---|
| 584 |
|
---|
[600] | 585 |
|
---|
[580] | 586 | // merge the view cells of leaf1 and leaf2
|
---|
| 587 | int pvsDiff;
|
---|
| 588 | ViewCellInterior *mergedVc =
|
---|
| 589 | MergeViewCells(mc.mLeftViewCell, mc.mRightViewCell, pvsDiff);
|
---|
| 590 |
|
---|
[600] | 591 |
|
---|
| 592 | // total render cost and deviation has changed
|
---|
| 593 | // real expected cost will be larger than expected cost used for the
|
---|
| 594 | // cost heuristics, but cannot recompute costs on each increase of the
|
---|
| 595 | // expected cost
|
---|
[580] | 596 | totalPvs += pvsDiff;
|
---|
[600] | 597 | realExpectedCost = totalRenderCost / (float)realNumActiveViewCells;
|
---|
| 598 | realAvgRenderCost = (float)totalPvs / (float)realNumActiveViewCells;
|
---|
| 599 |
|
---|
| 600 | // set merge cost to this node
|
---|
| 601 | mergedVc->SetMergeCost(totalRenderCost);
|
---|
[582] | 602 |
|
---|
[612] | 603 | //if (mViewCellsManager->EqualToSpatialNode(mergedVc))
|
---|
| 604 | // ++ mergeStats.siblings;
|
---|
[608] | 605 | mergedVc->SetCost(realExpectedCost);
|
---|
[607] | 606 |
|
---|
[650] | 607 | if ((mergeStats.merged % statsOut) == 0)
|
---|
[580] | 608 | cout << "merged " << mergeStats.merged << " view cells" << endl;
|
---|
| 609 |
|
---|
| 610 | }
|
---|
| 611 | else
|
---|
| 612 | {
|
---|
| 613 | // merge candidate not valid, because one of the leaves was already
|
---|
| 614 | // merged with another one => validate and reinsert into queue
|
---|
[582] | 615 | if (ValidateMergeCandidate(mc))
|
---|
| 616 | {
|
---|
| 617 | EvalMergeCost(mc);
|
---|
| 618 | mMergeQueue.push(mc);
|
---|
| 619 | }
|
---|
[580] | 620 | }
|
---|
[612] | 621 |
|
---|
[580] | 622 | }
|
---|
| 623 |
|
---|
[675] | 624 |
|
---|
[580] | 625 | // adjust stats and reset queue one final time
|
---|
| 626 | mExpectedCost = realExpectedCost;
|
---|
| 627 | mAvgRenderCost = realAvgRenderCost;
|
---|
[582] | 628 | mNumActiveViewCells = realNumActiveViewCells;
|
---|
[580] | 629 |
|
---|
[582] | 630 | UpdateActiveViewCells(activeViewCells);
|
---|
[580] | 631 |
|
---|
[675] | 632 |
|
---|
[586] | 633 | // refine view cells and reset costs
|
---|
| 634 | if (mRefineViewCells)
|
---|
| 635 | RefineViewCells(rays, objects);
|
---|
| 636 | else
|
---|
| 637 | ResetMergeQueue();
|
---|
| 638 |
|
---|
[580] | 639 | // create a root node if the merge was not done till root level,
|
---|
| 640 | // else take the single node as new root
|
---|
[582] | 641 | if ((int)activeViewCells.size() > 1)
|
---|
[580] | 642 | {
|
---|
[587] | 643 | Debug << "creating root of view cell hierarchy for "
|
---|
| 644 | << (int)activeViewCells.size() << " view cells" << endl;
|
---|
[612] | 645 |
|
---|
[582] | 646 | ViewCellInterior *root = mViewCellsManager->MergeViewCells(activeViewCells);
|
---|
[600] | 647 | root->SetMergeCost(totalRenderCost);
|
---|
[608] | 648 | // $$JB keep this 0 temporarilly
|
---|
| 649 | root->SetCost(0.0f);
|
---|
[612] | 650 |
|
---|
[580] | 651 | mRoot = root;
|
---|
| 652 | }
|
---|
[582] | 653 | else if ((int)activeViewCells.size() == 1)
|
---|
[580] | 654 | {
|
---|
[582] | 655 | Debug << "setting root of the merge history" << endl;
|
---|
| 656 | mRoot = activeViewCells[0];
|
---|
[580] | 657 | }
|
---|
| 658 |
|
---|
[644] | 659 | //-- empty merge queue just in case
|
---|
[600] | 660 | while (!mMergeQueue.empty())
|
---|
| 661 | {
|
---|
| 662 | mMergeQueue.pop();
|
---|
| 663 | }
|
---|
[675] | 664 |
|
---|
[581] | 665 | // TODO delete because makes no sense here
|
---|
[580] | 666 | mergeStats.expectedRenderCost = realExpectedCost;
|
---|
| 667 | mergeStats.deviation = mDeviation;
|
---|
| 668 |
|
---|
| 669 | // we want to optimize this heuristics
|
---|
| 670 | mergeStats.heuristics =
|
---|
| 671 | mDeviation * (1.0f - mRenderCostWeight) +
|
---|
| 672 | mExpectedCost * mRenderCostWeight;
|
---|
| 673 |
|
---|
| 674 | mergeStats.mergeTime = TimeDiff(startTime, GetTime());
|
---|
| 675 | mergeStats.Stop();
|
---|
| 676 | Debug << mergeStats << endl << endl;
|
---|
| 677 |
|
---|
[608] | 678 | // assign colors for the view cells so that at least one is always consistent
|
---|
| 679 | AssignRandomColors();
|
---|
[675] | 680 |
|
---|
[580] | 681 | //TODO: should return sample contributions?
|
---|
| 682 | return mergeStats.merged;
|
---|
| 683 | }
|
---|
| 684 |
|
---|
| 685 |
|
---|
[584] | 686 | ViewCell *ViewCellsTree::GetRoot() const
|
---|
[581] | 687 | {
|
---|
| 688 | return mRoot;
|
---|
| 689 | }
|
---|
| 690 |
|
---|
| 691 |
|
---|
[580] | 692 | void ViewCellsTree::ResetMergeQueue()
|
---|
| 693 | {
|
---|
| 694 | cout << "reset merge queue ... ";
|
---|
| 695 |
|
---|
| 696 | vector<MergeCandidate> buf;
|
---|
| 697 | buf.reserve(mMergeQueue.size());
|
---|
| 698 |
|
---|
| 699 |
|
---|
| 700 | // store merge candidates in intermediate buffer
|
---|
| 701 | while (!mMergeQueue.empty())
|
---|
| 702 | {
|
---|
| 703 | MergeCandidate mc = mMergeQueue.top();
|
---|
| 704 | mMergeQueue.pop();
|
---|
| 705 |
|
---|
| 706 | // recalculate cost
|
---|
[582] | 707 | if (ValidateMergeCandidate(mc))
|
---|
| 708 | {
|
---|
| 709 | EvalMergeCost(mc);
|
---|
| 710 | buf.push_back(mc);
|
---|
| 711 | }
|
---|
[580] | 712 | }
|
---|
| 713 |
|
---|
| 714 | vector<MergeCandidate>::const_iterator bit, bit_end = buf.end();
|
---|
| 715 |
|
---|
| 716 | // reinsert back into queue
|
---|
| 717 | for (bit = buf.begin(); bit != bit_end; ++ bit)
|
---|
| 718 | {
|
---|
| 719 | mMergeQueue.push(*bit);
|
---|
| 720 | }
|
---|
| 721 |
|
---|
| 722 | cout << "finished" << endl;
|
---|
| 723 | }
|
---|
| 724 |
|
---|
| 725 |
|
---|
[582] | 726 | int ViewCellsTree::UpdateActiveViewCells(ViewCellContainer &viewCells)
|
---|
[580] | 727 | {
|
---|
[582] | 728 | int numMergedViewCells = 0;
|
---|
[580] | 729 |
|
---|
[584] | 730 | Debug << "updating active vc: " << (int)viewCells.size() << endl;
|
---|
[580] | 731 | // find all already merged view cells and remove them from view cells
|
---|
[582] | 732 |
|
---|
| 733 | // sort out all view cells which are not active anymore, i.e., they
|
---|
| 734 | // were already part of a merge
|
---|
[580] | 735 | int i = 0;
|
---|
| 736 |
|
---|
[582] | 737 | ViewCell::NewMail();
|
---|
| 738 |
|
---|
[580] | 739 | while (1)
|
---|
| 740 | {
|
---|
[582] | 741 | // remove all merged view cells from end of the vector
|
---|
| 742 | while (!viewCells.empty() && (viewCells.back()->GetParent()))
|
---|
[580] | 743 | {
|
---|
| 744 | viewCells.pop_back();
|
---|
| 745 | }
|
---|
| 746 |
|
---|
| 747 | // all merged view cells have been found
|
---|
| 748 | if (i >= viewCells.size())
|
---|
| 749 | break;
|
---|
| 750 |
|
---|
| 751 | // already merged view cell, put it to end of vector
|
---|
[582] | 752 | if (viewCells[i]->GetParent())
|
---|
[580] | 753 | swap(viewCells[i], viewCells.back());
|
---|
| 754 |
|
---|
[582] | 755 | viewCells[i ++]->Mail();
|
---|
[580] | 756 | }
|
---|
| 757 |
|
---|
[582] | 758 |
|
---|
[580] | 759 | // add new view cells to container only if they don't have been
|
---|
| 760 | // merged in the mean time
|
---|
[582] | 761 | ViewCellContainer::const_iterator ait, ait_end = mMergedViewCells.end();
|
---|
| 762 | for (ait = mMergedViewCells.begin(); ait != ait_end; ++ ait)
|
---|
[580] | 763 | {
|
---|
[582] | 764 | ViewCell *vc = mMergedViewCells.back();
|
---|
| 765 | if (!vc->GetParent() && !vc->Mailed())
|
---|
[580] | 766 | {
|
---|
[582] | 767 | vc->Mail();
|
---|
| 768 | viewCells.push_back(vc);
|
---|
| 769 | ++ numMergedViewCells;
|
---|
[580] | 770 | }
|
---|
| 771 | }
|
---|
| 772 |
|
---|
[582] | 773 | mMergedViewCells.clear();
|
---|
| 774 |
|
---|
[580] | 775 | // update standard deviation
|
---|
| 776 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
| 777 |
|
---|
| 778 | mDeviation = 0;
|
---|
| 779 |
|
---|
| 780 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 781 | {
|
---|
| 782 | int lower = mViewCellsManager->GetMinPvsSize();
|
---|
| 783 | int upper = mViewCellsManager->GetMaxPvsSize();
|
---|
| 784 | float penalty = EvalPvsPenalty((*vit)->GetPvs().GetSize(), lower, upper);
|
---|
| 785 |
|
---|
| 786 | mDeviation += fabs(mAvgRenderCost - penalty);
|
---|
| 787 | }
|
---|
| 788 |
|
---|
| 789 | mDeviation /= (float)viewCells.size();
|
---|
[582] | 790 |
|
---|
| 791 | return numMergedViewCells;
|
---|
[580] | 792 | }
|
---|
| 793 |
|
---|
| 794 |
|
---|
| 795 | void ViewCellsTree::ExportMergedViewCells(ViewCellContainer &viewCells,
|
---|
| 796 | const ObjectContainer &objects,
|
---|
[582] | 797 | const int numMergedViewCells)
|
---|
[580] | 798 | {
|
---|
| 799 |
|
---|
| 800 |
|
---|
| 801 | char s[64];
|
---|
| 802 |
|
---|
| 803 | sprintf(s, "merged_viewcells%07d.x3d", (int)viewCells.size());
|
---|
| 804 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 805 |
|
---|
| 806 | if (exporter)
|
---|
| 807 | {
|
---|
| 808 | cout << "exporting " << (int)viewCells.size() << " merged view cells ... ";
|
---|
| 809 | exporter->ExportGeometry(objects);
|
---|
| 810 | //Debug << "vc size " << (int)viewCells.size() << " merge queue size: " << (int)mMergeQueue.size() << endl;
|
---|
| 811 | ViewCellContainer::const_iterator it, it_end = viewCells.end();
|
---|
| 812 |
|
---|
| 813 | int i = 0;
|
---|
| 814 | for (it = viewCells.begin(); it != it_end; ++ it)
|
---|
| 815 | {
|
---|
| 816 | Material m;
|
---|
| 817 | // assign special material to new view cells
|
---|
| 818 | // new view cells are on the back of container
|
---|
[582] | 819 | if (i ++ >= (viewCells.size() - numMergedViewCells))
|
---|
[580] | 820 | {
|
---|
| 821 | //m = RandomMaterial();
|
---|
| 822 | m.mDiffuseColor.r = RandomValue(0.5f, 1.0f);
|
---|
| 823 | m.mDiffuseColor.g = RandomValue(0.5f, 1.0f);
|
---|
| 824 | m.mDiffuseColor.b = RandomValue(0.5f, 1.0f);
|
---|
| 825 | }
|
---|
| 826 | else
|
---|
| 827 | {
|
---|
| 828 | float col = RandomValue(0.1f, 0.4f);
|
---|
| 829 | m.mDiffuseColor.r = col;
|
---|
| 830 | m.mDiffuseColor.g = col;
|
---|
| 831 | m.mDiffuseColor.b = col;
|
---|
| 832 | }
|
---|
| 833 |
|
---|
| 834 | exporter->SetForcedMaterial(m);
|
---|
| 835 | mViewCellsManager->ExportViewCellGeometry(exporter, *it);
|
---|
| 836 | }
|
---|
| 837 | delete exporter;
|
---|
| 838 | cout << "finished" << endl;
|
---|
| 839 | }
|
---|
| 840 | }
|
---|
| 841 |
|
---|
| 842 |
|
---|
| 843 | // TODO: should be done in view cells manager
|
---|
[586] | 844 | ViewCellInterior *ViewCellsTree::MergeViewCells(ViewCell *l,
|
---|
| 845 | ViewCell *r,
|
---|
| 846 | int &pvsDiff) //const
|
---|
[580] | 847 | {
|
---|
[582] | 848 | ViewCellInterior *vc = mViewCellsManager->MergeViewCells(l, r);
|
---|
[580] | 849 |
|
---|
| 850 | // if merge was unsuccessful
|
---|
| 851 | if (!vc) return NULL;
|
---|
| 852 |
|
---|
| 853 | // set new size of view cell
|
---|
| 854 | if (mUseAreaForPvs)
|
---|
| 855 | vc->SetArea(l->GetArea() + l->GetArea());
|
---|
| 856 | else
|
---|
[602] | 857 | {
|
---|
| 858 | vc->SetVolume(r->GetVolume() + l->GetVolume());
|
---|
| 859 | }
|
---|
[580] | 860 | // important so other merge candidates sharing this view cell
|
---|
| 861 | // are notified that the merge cost must be updated!!
|
---|
| 862 | vc->Mail();
|
---|
| 863 |
|
---|
| 864 | const int pvs1 = l->GetPvs().GetSize();
|
---|
| 865 | const int pvs2 = r->GetPvs().GetSize();
|
---|
| 866 |
|
---|
| 867 |
|
---|
[582] | 868 | // new view cells are stored in this vector
|
---|
| 869 | mMergedViewCells.push_back(vc);
|
---|
[580] | 870 |
|
---|
| 871 | pvsDiff = vc->GetPvs().GetSize() - pvs1 - pvs2;
|
---|
| 872 |
|
---|
| 873 | return vc;
|
---|
| 874 | }
|
---|
| 875 |
|
---|
| 876 |
|
---|
| 877 |
|
---|
[586] | 878 | int ViewCellsTree::RefineViewCells(const VssRayContainer &rays,
|
---|
| 879 | const ObjectContainer &objects)
|
---|
[580] | 880 | {
|
---|
| 881 | Debug << "refining " << (int)mMergeQueue.size() << " candidates " << endl;
|
---|
[586] | 882 |
|
---|
| 883 | // intermediate buffer for shuffled view cells
|
---|
| 884 | vector<MergeCandidate> buf;
|
---|
| 885 | buf.reserve(mMergeQueue.size());
|
---|
| 886 |
|
---|
[580] | 887 | // Use priority queue of remaining leaf pairs
|
---|
| 888 | // The candidates either share the same view cells or
|
---|
| 889 | // are border leaves which share a boundary.
|
---|
| 890 | // We test if they can be shuffled, i.e.,
|
---|
| 891 | // either one leaf is made part of one view cell or the other
|
---|
| 892 | // leaf is made part of the other view cell. It is tested if the
|
---|
| 893 | // remaining view cells are "better" than the old ones.
|
---|
| 894 |
|
---|
[586] | 895 | const int numPasses = 3;
|
---|
[580] | 896 | int pass = 0;
|
---|
| 897 | int passShuffled = 0;
|
---|
| 898 | int shuffled = 0;
|
---|
| 899 | int shuffledViewCells = 0;
|
---|
| 900 |
|
---|
| 901 | ViewCell::NewMail();
|
---|
| 902 |
|
---|
[586] | 903 | while (!mMergeQueue.empty())
|
---|
[580] | 904 | {
|
---|
[586] | 905 | MergeCandidate mc = mMergeQueue.top();
|
---|
| 906 | mMergeQueue.pop();
|
---|
[580] | 907 |
|
---|
[586] | 908 | // both view cells equal or already shuffled
|
---|
| 909 | if ((mc.GetLeftViewCell() == mc.GetRightViewCell()) ||
|
---|
| 910 | mc.GetLeftViewCell()->IsLeaf() || mc.GetRightViewCell()->IsLeaf())
|
---|
| 911 | {
|
---|
| 912 | continue;
|
---|
| 913 | }
|
---|
[580] | 914 |
|
---|
[586] | 915 | // candidate for shuffling
|
---|
| 916 | const bool wasShuffled = ShuffleLeaves(mc);
|
---|
[580] | 917 |
|
---|
[586] | 918 | // shuffled or put into other queue for further refine
|
---|
| 919 | if (wasShuffled)
|
---|
| 920 | {
|
---|
| 921 | ++ passShuffled;
|
---|
| 922 |
|
---|
| 923 | if (!mc.GetLeftViewCell()->Mailed())
|
---|
[580] | 924 | {
|
---|
[586] | 925 | mc.GetLeftViewCell()->Mail();
|
---|
| 926 | ++ shuffledViewCells;
|
---|
[580] | 927 | }
|
---|
[586] | 928 | if (!mc.GetRightViewCell()->Mailed())
|
---|
[580] | 929 | {
|
---|
[586] | 930 | mc.GetRightViewCell()->Mail();
|
---|
| 931 | ++ shuffledViewCells;
|
---|
[580] | 932 | }
|
---|
| 933 | }
|
---|
| 934 |
|
---|
[586] | 935 | // put back into intermediate vector
|
---|
| 936 | buf.push_back(mc);
|
---|
[580] | 937 | }
|
---|
| 938 |
|
---|
[586] | 939 |
|
---|
| 940 | //-- in the end, the candidates must be in the mergequeue again
|
---|
| 941 | // with the correct cost
|
---|
| 942 |
|
---|
| 943 | cout << "reset merge queue ... ";
|
---|
| 944 |
|
---|
| 945 |
|
---|
| 946 | vector<MergeCandidate>::const_iterator bit, bit_end = buf.end();
|
---|
| 947 |
|
---|
| 948 | for (bit = buf.begin(); bit != bit_end; ++ bit)
|
---|
| 949 | {
|
---|
| 950 | MergeCandidate mc = *bit;
|
---|
| 951 | // recalculate cost
|
---|
| 952 | if (ValidateMergeCandidate(mc))
|
---|
| 953 | {
|
---|
| 954 | EvalMergeCost(mc);
|
---|
| 955 | mMergeQueue.push(mc);
|
---|
| 956 | }
|
---|
[580] | 957 | }
|
---|
| 958 |
|
---|
[586] | 959 | cout << "finished" << endl;
|
---|
| 960 |
|
---|
[580] | 961 | return shuffledViewCells;
|
---|
| 962 | }
|
---|
| 963 |
|
---|
| 964 |
|
---|
| 965 |
|
---|
| 966 |
|
---|
| 967 | inline int AddedPvsSize(ObjectPvs pvs1, const ObjectPvs &pvs2)
|
---|
| 968 | {
|
---|
| 969 | return pvs1.AddPvs(pvs2);
|
---|
| 970 | }
|
---|
| 971 |
|
---|
| 972 |
|
---|
| 973 | // recomputes pvs size minus pvs of leaf l
|
---|
| 974 | #if 0
|
---|
| 975 | inline int SubtractedPvsSize(BspViewCell *vc, BspLeaf *l, const ObjectPvs &pvs2)
|
---|
| 976 | {
|
---|
| 977 | ObjectPvs pvs;
|
---|
| 978 | vector<BspLeaf *>::const_iterator it, it_end = vc->mLeaves.end();
|
---|
| 979 | for (it = vc->mLeaves.begin(); it != vc->mLeaves.end(); ++ it)
|
---|
| 980 | if (*it != l)
|
---|
| 981 | pvs.AddPvs(*(*it)->mPvs);
|
---|
| 982 | return pvs.GetSize();
|
---|
| 983 | }
|
---|
| 984 | #endif
|
---|
| 985 |
|
---|
| 986 |
|
---|
| 987 | // computes pvs1 minus pvs2
|
---|
| 988 | inline int SubtractedPvsSize(ObjectPvs pvs1, const ObjectPvs &pvs2)
|
---|
| 989 | {
|
---|
| 990 | return pvs1.SubtractPvs(pvs2);
|
---|
| 991 | }
|
---|
| 992 |
|
---|
| 993 |
|
---|
| 994 | float ViewCellsTree::EvalShuffleCost(ViewCell *leaf,
|
---|
[586] | 995 | ViewCellInterior *vc1,
|
---|
| 996 | ViewCellInterior *vc2) const
|
---|
[580] | 997 | {
|
---|
| 998 | //const int pvs1 = SubtractedPvsSize(vc1, leaf, *leaf->mPvs);
|
---|
| 999 | const int pvs1 = SubtractedPvsSize(vc1->GetPvs(), leaf->GetPvs());
|
---|
| 1000 | const int pvs2 = AddedPvsSize(vc2->GetPvs(), leaf->GetPvs());
|
---|
| 1001 |
|
---|
| 1002 | const int lowerPvsLimit = mViewCellsManager->GetMinPvsSize();
|
---|
| 1003 | const int upperPvsLimit = mViewCellsManager->GetMaxPvsSize();
|
---|
| 1004 |
|
---|
| 1005 | const float pvsPenalty1 =
|
---|
| 1006 | EvalPvsPenalty(pvs1, lowerPvsLimit, upperPvsLimit);
|
---|
| 1007 |
|
---|
| 1008 | const float pvsPenalty2 =
|
---|
| 1009 | EvalPvsPenalty(pvs2, lowerPvsLimit, upperPvsLimit);
|
---|
| 1010 |
|
---|
| 1011 |
|
---|
| 1012 | // don't shuffle leaves with pvs > max
|
---|
| 1013 | if (0 && (pvs1 + pvs2 > mViewCellsManager->GetMaxPvsSize()))
|
---|
| 1014 | {
|
---|
| 1015 | return 1e20f;
|
---|
| 1016 | }
|
---|
| 1017 |
|
---|
| 1018 | float p1, p2;
|
---|
| 1019 |
|
---|
| 1020 | if (mUseAreaForPvs)
|
---|
| 1021 | {
|
---|
| 1022 | p1 = vc1->GetArea() - leaf->GetArea();
|
---|
| 1023 | p2 = vc2->GetArea() + leaf->GetArea();
|
---|
| 1024 | }
|
---|
| 1025 | else
|
---|
| 1026 | {
|
---|
| 1027 | p1 = vc1->GetVolume() - leaf->GetVolume();
|
---|
| 1028 | p2 = vc2->GetVolume() + leaf->GetVolume();
|
---|
| 1029 | }
|
---|
| 1030 |
|
---|
| 1031 | const float renderCost1 = pvsPenalty1 * p1;
|
---|
| 1032 | const float renderCost2 = pvsPenalty2 * p2;
|
---|
| 1033 |
|
---|
| 1034 | float dev1, dev2;
|
---|
| 1035 |
|
---|
| 1036 | if (1)
|
---|
| 1037 | {
|
---|
| 1038 | dev1 = fabs(mAvgRenderCost - pvsPenalty1);
|
---|
| 1039 | dev2 = fabs(mAvgRenderCost - pvsPenalty2);
|
---|
| 1040 | }
|
---|
| 1041 | else
|
---|
| 1042 | {
|
---|
| 1043 | dev1 = fabs(mExpectedCost - renderCost1);
|
---|
| 1044 | dev2 = fabs(mExpectedCost - renderCost2);
|
---|
| 1045 | }
|
---|
| 1046 |
|
---|
| 1047 | return mRenderCostWeight * (renderCost1 + renderCost2) +
|
---|
[582] | 1048 | (1.0f - mRenderCostWeight) * (dev1 + dev2) / (float)mNumActiveViewCells;
|
---|
[580] | 1049 | }
|
---|
| 1050 |
|
---|
| 1051 |
|
---|
| 1052 | void ViewCellsTree::ShuffleLeaf(ViewCell *leaf,
|
---|
[586] | 1053 | ViewCellInterior *vc1,
|
---|
| 1054 | ViewCellInterior *vc2) const
|
---|
[580] | 1055 | {
|
---|
| 1056 | // compute new pvs and area
|
---|
[586] | 1057 | // TODO change
|
---|
[580] | 1058 | vc1->GetPvs().SubtractPvs(leaf->GetPvs());
|
---|
| 1059 | vc2->GetPvs().AddPvs(leaf->GetPvs());
|
---|
| 1060 |
|
---|
| 1061 | if (mUseAreaForPvs)
|
---|
| 1062 | {
|
---|
| 1063 | vc1->SetArea(vc1->GetArea() - leaf->GetArea());
|
---|
| 1064 | vc2->SetArea(vc2->GetArea() + leaf->GetArea());
|
---|
| 1065 | }
|
---|
| 1066 | else
|
---|
| 1067 | {
|
---|
| 1068 | vc1->SetVolume(vc1->GetVolume() - leaf->GetVolume());
|
---|
| 1069 | vc2->SetVolume(vc2->GetVolume() + leaf->GetVolume());
|
---|
| 1070 | }
|
---|
| 1071 |
|
---|
[586] | 1072 |
|
---|
| 1073 | ViewCellInterior *p = dynamic_cast<ViewCellInterior *>(leaf->GetParent());
|
---|
[580] | 1074 |
|
---|
[586] | 1075 | p->RemoveChildLink(leaf);
|
---|
| 1076 | vc2->SetupChildLink(leaf);
|
---|
[580] | 1077 | }
|
---|
| 1078 |
|
---|
| 1079 |
|
---|
[586] | 1080 | bool ViewCellsTree::ShuffleLeaves(MergeCandidate &mc) const
|
---|
[580] | 1081 | {
|
---|
| 1082 | float cost1, cost2;
|
---|
| 1083 |
|
---|
[586] | 1084 | ViewCellInterior *vc1 = dynamic_cast<ViewCellInterior *>(mc.GetLeftViewCell());
|
---|
| 1085 | ViewCellInterior *vc2 = dynamic_cast<ViewCellInterior *>(mc.GetRightViewCell());
|
---|
| 1086 |
|
---|
| 1087 | ViewCell *leaf1 = mc.GetInitialLeftViewCell();
|
---|
| 1088 | ViewCell *leaf2 = mc.GetInitialRightViewCell();
|
---|
| 1089 |
|
---|
[580] | 1090 | //-- first test if shuffling would decrease cost
|
---|
[586] | 1091 | cost1 = GetCostHeuristics(vc1);
|
---|
| 1092 | cost2 = GetCostHeuristics(vc2);
|
---|
[580] | 1093 |
|
---|
| 1094 | const float oldCost = cost1 + cost2;
|
---|
| 1095 |
|
---|
| 1096 | float shuffledCost1 = Limits::Infinity;
|
---|
| 1097 | float shuffledCost2 = Limits::Infinity;
|
---|
| 1098 |
|
---|
[586] | 1099 | if (leaf1)
|
---|
| 1100 | shuffledCost1 = EvalShuffleCost(leaf1, vc1, vc2);
|
---|
| 1101 | if (leaf2)
|
---|
| 1102 | shuffledCost2 = EvalShuffleCost(leaf2, vc2, vc1);
|
---|
[580] | 1103 |
|
---|
| 1104 | // if cost of shuffle is less than old cost => shuffle
|
---|
| 1105 | if ((oldCost <= shuffledCost1) && (oldCost <= shuffledCost2))
|
---|
| 1106 | return false;
|
---|
| 1107 |
|
---|
| 1108 | if (shuffledCost1 < shuffledCost2)
|
---|
| 1109 | {
|
---|
[586] | 1110 | if (leaf1)
|
---|
| 1111 | ShuffleLeaf(leaf1, vc1, vc2);
|
---|
| 1112 | mc.mInitialLeftViewCell = NULL;
|
---|
[580] | 1113 | }
|
---|
| 1114 | else
|
---|
| 1115 | {
|
---|
[586] | 1116 | if (leaf2)
|
---|
| 1117 | ShuffleLeaf(leaf2, vc2, vc1);
|
---|
| 1118 | mc.mInitialRightViewCell = NULL;
|
---|
[580] | 1119 | }
|
---|
[586] | 1120 |
|
---|
[580] | 1121 | return true;
|
---|
| 1122 | }
|
---|
| 1123 |
|
---|
| 1124 |
|
---|
| 1125 | float ViewCellsTree::GetVariance(ViewCell *vc) const
|
---|
| 1126 | {
|
---|
| 1127 | const int upper = mViewCellsManager->GetMaxPvsSize();
|
---|
| 1128 | const int lower = mViewCellsManager->GetMinPvsSize();
|
---|
| 1129 |
|
---|
| 1130 | if (1)
|
---|
| 1131 | {
|
---|
| 1132 | const float penalty = EvalPvsPenalty(vc->GetPvs().GetSize(), lower, upper);
|
---|
[582] | 1133 | return (mAvgRenderCost - penalty) * (mAvgRenderCost - penalty) / (float)mNumActiveViewCells;
|
---|
[580] | 1134 | }
|
---|
| 1135 |
|
---|
| 1136 | const float leafCost = GetRenderCost(vc);
|
---|
| 1137 | return (mExpectedCost - leafCost) * (mExpectedCost - leafCost);
|
---|
| 1138 | }
|
---|
| 1139 |
|
---|
| 1140 |
|
---|
| 1141 | float ViewCellsTree::GetDeviation(ViewCell *vc) const
|
---|
| 1142 | {
|
---|
| 1143 | const int upper = mViewCellsManager->GetMaxPvsSize();
|
---|
| 1144 | const int lower = mViewCellsManager->GetMinPvsSize();
|
---|
| 1145 |
|
---|
| 1146 | if (1)
|
---|
| 1147 | {
|
---|
| 1148 | const float penalty = EvalPvsPenalty(vc->GetPvs().GetSize(), lower, upper);
|
---|
[582] | 1149 | return fabs(mAvgRenderCost - penalty) / (float)mNumActiveViewCells;
|
---|
[580] | 1150 | }
|
---|
| 1151 |
|
---|
| 1152 | const float renderCost = GetRenderCost(vc);
|
---|
| 1153 | return fabs(mExpectedCost - renderCost);
|
---|
| 1154 | }
|
---|
| 1155 |
|
---|
| 1156 |
|
---|
| 1157 |
|
---|
| 1158 | float ViewCellsTree::GetRenderCost(ViewCell *vc) const
|
---|
| 1159 | {
|
---|
| 1160 | if (mUseAreaForPvs)
|
---|
| 1161 | return vc->GetPvs().GetSize() * vc->GetArea();
|
---|
| 1162 |
|
---|
| 1163 | return vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
| 1164 | }
|
---|
| 1165 |
|
---|
| 1166 |
|
---|
| 1167 | float ViewCellsTree::GetCostHeuristics(ViewCell *vc) const
|
---|
| 1168 | {
|
---|
| 1169 | return GetRenderCost(vc) * mRenderCostWeight +
|
---|
| 1170 | GetDeviation(vc) * (1.0f - mRenderCostWeight);
|
---|
| 1171 | }
|
---|
| 1172 |
|
---|
| 1173 |
|
---|
[582] | 1174 | bool ViewCellsTree::ValidateMergeCandidate(MergeCandidate &mc) const
|
---|
[580] | 1175 | {
|
---|
| 1176 | while (mc.mLeftViewCell->mParent)
|
---|
| 1177 | {
|
---|
| 1178 | mc.mLeftViewCell = mc.mLeftViewCell->mParent;
|
---|
| 1179 | }
|
---|
| 1180 |
|
---|
| 1181 | while (mc.mRightViewCell->mParent)
|
---|
| 1182 | {
|
---|
| 1183 | mc.mRightViewCell = mc.mRightViewCell->mParent;
|
---|
| 1184 | }
|
---|
| 1185 |
|
---|
[582] | 1186 | return mc.mLeftViewCell != mc.mRightViewCell;
|
---|
[580] | 1187 | }
|
---|
| 1188 |
|
---|
| 1189 |
|
---|
| 1190 | void ViewCellsTree::EvalMergeCost(MergeCandidate &mc) const
|
---|
| 1191 | {
|
---|
| 1192 | //-- compute pvs difference
|
---|
| 1193 | const int newPvs =
|
---|
| 1194 | ComputeMergedPvsSize(mc.mLeftViewCell->GetPvs(),
|
---|
| 1195 | mc.mRightViewCell->GetPvs());
|
---|
| 1196 |
|
---|
| 1197 | const float newPenalty =
|
---|
| 1198 | EvalPvsPenalty(newPvs,
|
---|
| 1199 | mViewCellsManager->GetMinPvsSize(),
|
---|
| 1200 | mViewCellsManager->GetMaxPvsSize());
|
---|
| 1201 |
|
---|
| 1202 | ViewCell *vc1 = mc.mLeftViewCell;
|
---|
| 1203 | ViewCell *vc2 = mc.mRightViewCell;
|
---|
| 1204 |
|
---|
| 1205 | //-- compute ratio of old cost
|
---|
| 1206 | // (i.e., added size of left and right view cell times pvs size)
|
---|
| 1207 | // to new rendering cost (i.e, size of merged view cell times pvs size)
|
---|
| 1208 | const float oldCost = GetRenderCost(vc1) + GetRenderCost(vc2);
|
---|
| 1209 |
|
---|
| 1210 | const float newCost = mUseAreaForPvs ?
|
---|
| 1211 | (float)newPenalty * (vc1->GetArea() + vc2->GetArea()) :
|
---|
| 1212 | (float)newPenalty * (vc1->GetVolume() + vc2->GetVolume());
|
---|
| 1213 |
|
---|
| 1214 |
|
---|
| 1215 | // strong penalty if pvs size too large
|
---|
| 1216 | if (0 && (newPvs > mViewCellsManager->GetMaxPvsSize()))
|
---|
| 1217 | {
|
---|
| 1218 | mc.mRenderCost = 1e20f;
|
---|
| 1219 | }
|
---|
| 1220 | else
|
---|
| 1221 | {
|
---|
| 1222 | mc.mRenderCost = (newCost - oldCost) /
|
---|
| 1223 | mViewCellsManager->GetViewSpaceBox().GetVolume();
|
---|
| 1224 | }
|
---|
| 1225 |
|
---|
| 1226 |
|
---|
| 1227 | //-- merge cost also takes deviation into account
|
---|
| 1228 | float newDev, oldDev;
|
---|
| 1229 |
|
---|
| 1230 | if (1)
|
---|
[582] | 1231 | newDev = fabs(mAvgRenderCost - newPenalty) / (float)mNumActiveViewCells;
|
---|
[580] | 1232 | else
|
---|
[582] | 1233 | newDev = fabs(mExpectedCost - newCost) / (float)mNumActiveViewCells;
|
---|
[580] | 1234 |
|
---|
| 1235 | oldDev = GetDeviation(vc1) + GetDeviation(vc2);
|
---|
| 1236 |
|
---|
| 1237 | // compute deviation increase
|
---|
| 1238 | mc.mDeviationIncr = newDev - oldDev;
|
---|
| 1239 |
|
---|
| 1240 | //Debug << "render cost: " << mc.mRenderCost * mRenderCostWeight << endl;
|
---|
| 1241 | //Debug << "standard deviation: " << mc.mDeviationIncr * mRenderCostWeight << endl;
|
---|
| 1242 | }
|
---|
| 1243 |
|
---|
| 1244 | void ViewCellsTree::CompressViewCellsPvs()
|
---|
| 1245 | {
|
---|
[584] | 1246 | if (!mIsCompressed)
|
---|
[581] | 1247 | {
|
---|
[584] | 1248 | mIsCompressed = true;
|
---|
| 1249 | CompressViewCellsPvs(mRoot);
|
---|
| 1250 | }
|
---|
| 1251 | }
|
---|
[580] | 1252 |
|
---|
[584] | 1253 | void ViewCellsTree::CompressViewCellsPvs(ViewCell *root)
|
---|
| 1254 | {
|
---|
| 1255 | if (!root->IsLeaf())
|
---|
| 1256 | {
|
---|
| 1257 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 1258 |
|
---|
| 1259 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
[585] | 1260 |
|
---|
[584] | 1261 | // compress child sets first
|
---|
| 1262 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
[581] | 1263 | {
|
---|
[584] | 1264 | CompressViewCellsPvs(*it);
|
---|
[581] | 1265 | }
|
---|
[584] | 1266 |
|
---|
[585] | 1267 | // compress root node
|
---|
[610] | 1268 | PullUpVisibility(interior);
|
---|
[581] | 1269 | }
|
---|
[580] | 1270 | }
|
---|
| 1271 |
|
---|
| 1272 |
|
---|
[660] | 1273 | void ViewCellsTree::ExportStats(const string &mergeStats)
|
---|
[650] | 1274 | {
|
---|
| 1275 | TraversalQueue tqueue;
|
---|
| 1276 |
|
---|
| 1277 | tqueue.push(mRoot);
|
---|
| 1278 | int numViewCells = 1;
|
---|
| 1279 |
|
---|
| 1280 | const AxisAlignedBox3 box = mViewCellsManager->GetViewSpaceBox();
|
---|
| 1281 | const float vol = box.GetVolume();
|
---|
| 1282 |
|
---|
[693] | 1283 | Debug << "vsb volume: " << vol << endl;
|
---|
| 1284 | Debug << "root volume: " << mRoot->GetVolume() << endl;
|
---|
| 1285 | Debug << "root pvs: " << mRoot->GetPvs().GetSize() << endl;
|
---|
| 1286 |
|
---|
[650] | 1287 | int totalPvs;
|
---|
[651] | 1288 | float totalRenderCost, avgRenderCost, expectedCost;
|
---|
[650] | 1289 |
|
---|
| 1290 | float deviation = 0;
|
---|
| 1291 | totalPvs = (int)mRoot->GetPvs().GetSize();
|
---|
| 1292 | totalRenderCost = avgRenderCost = expectedCost = (float)mRoot->GetPvs().GetSize();
|
---|
| 1293 |
|
---|
| 1294 | ofstream stats;
|
---|
[660] | 1295 | stats.open(mergeStats.c_str());
|
---|
[650] | 1296 |
|
---|
| 1297 | stats
|
---|
| 1298 | << "#Pass\n" << 0 << endl
|
---|
| 1299 | //<< "#Merged\n" << mergeStats.merged << endl
|
---|
| 1300 | << "#ViewCells\n" << numViewCells << endl
|
---|
| 1301 | << "#RenderCostDecrease\n" << 0 << endl // TODO
|
---|
| 1302 | << "#TotalRenderCost\n" << totalRenderCost << endl
|
---|
| 1303 | << "#CurrentPvs\n" << mRoot->GetPvs().GetSize() << endl
|
---|
| 1304 | << "#ExpectedCost\n" << expectedCost << endl
|
---|
| 1305 | << "#AvgRenderCost\n" << avgRenderCost << endl
|
---|
| 1306 | << "#Deviation\n" << deviation << endl
|
---|
| 1307 | << "#TotalPvs\n" << totalPvs << endl
|
---|
| 1308 | << "#PvsSizeDecrease\n" << 0 << endl // TODO
|
---|
| 1309 | << "#Volume\n" << mRoot->GetVolume() << endl
|
---|
| 1310 | << endl;
|
---|
| 1311 |
|
---|
| 1312 |
|
---|
| 1313 | while (!tqueue.empty())
|
---|
| 1314 | {
|
---|
| 1315 | ViewCell *vc = tqueue.top();
|
---|
| 1316 | tqueue.pop();
|
---|
| 1317 |
|
---|
| 1318 | if (!vc->IsLeaf())
|
---|
| 1319 | {
|
---|
| 1320 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1321 |
|
---|
| 1322 | const int parentPvs = interior->GetPvs().GetSize();
|
---|
| 1323 | const float parentCost = (float)parentPvs * interior->GetVolume();
|
---|
| 1324 | float childCost = 0;
|
---|
| 1325 | int childPvs = 0;
|
---|
| 1326 |
|
---|
| 1327 | -- numViewCells;
|
---|
| 1328 |
|
---|
| 1329 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1330 |
|
---|
| 1331 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1332 | {
|
---|
| 1333 | childCost += (float)(*it)->GetPvs().GetSize() * (*it)->GetVolume();
|
---|
| 1334 | childPvs += (*it)->GetPvs().GetSize();
|
---|
| 1335 |
|
---|
| 1336 | tqueue.push(*it);
|
---|
| 1337 | ++ numViewCells;
|
---|
| 1338 | }
|
---|
| 1339 |
|
---|
| 1340 |
|
---|
| 1341 | const float costDecr = (parentCost - childCost) / vol;
|
---|
| 1342 |
|
---|
| 1343 | totalRenderCost -= costDecr;
|
---|
| 1344 | totalPvs += childPvs - parentPvs;
|
---|
| 1345 |
|
---|
| 1346 | expectedCost = totalRenderCost / (float)numViewCells;
|
---|
| 1347 | avgRenderCost = (float)totalPvs / (float)numViewCells;
|
---|
| 1348 |
|
---|
| 1349 | stats
|
---|
| 1350 | << "#Pass\n" << 0 << endl
|
---|
| 1351 | //<< "#Merged\n" << mergeStats.merged << endl
|
---|
| 1352 | << "#ViewCells\n" << numViewCells << endl
|
---|
| 1353 | << "#RenderCostDecrease\n" << costDecr << endl // TODO
|
---|
| 1354 | << "#TotalRenderCost\n" << totalRenderCost << endl
|
---|
| 1355 | << "#CurrentPvs\n" << vc->GetPvs().GetSize() << endl
|
---|
| 1356 | << "#ExpectedCost\n" << expectedCost << endl
|
---|
| 1357 | << "#AvgRenderCost\n" << avgRenderCost << endl
|
---|
| 1358 | << "#Deviation\n" << deviation << endl
|
---|
| 1359 | << "#TotalPvs\n" << totalPvs << endl
|
---|
| 1360 | << "#PvsSizeDecrease\n" << childPvs - parentPvs << endl // TODO
|
---|
| 1361 | << "#Volume\n" << vc->GetVolume() << endl
|
---|
| 1362 | << endl;
|
---|
| 1363 |
|
---|
| 1364 | }
|
---|
| 1365 | }
|
---|
| 1366 |
|
---|
| 1367 | stats.close();
|
---|
| 1368 | }
|
---|
| 1369 |
|
---|
| 1370 |
|
---|
[651] | 1371 | #if 0
|
---|
| 1372 | float ViewCellsTree::ComputeVolume(ViewCell *vc)
|
---|
[650] | 1373 | {
|
---|
| 1374 | if (vc->IsLeaf())
|
---|
| 1375 | {
|
---|
| 1376 | return vc->GetVolume();
|
---|
| 1377 | }
|
---|
| 1378 | else
|
---|
| 1379 | {
|
---|
| 1380 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1381 |
|
---|
| 1382 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1383 |
|
---|
| 1384 | float volume = 0;
|
---|
| 1385 |
|
---|
| 1386 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1387 | {
|
---|
| 1388 | volume += ComputeVolume(*it);
|
---|
| 1389 | }
|
---|
| 1390 |
|
---|
| 1391 | interior->SetVolume(volume);
|
---|
| 1392 | return volume;
|
---|
| 1393 | }
|
---|
[651] | 1394 | }
|
---|
| 1395 | #endif
|
---|
[650] | 1396 |
|
---|
| 1397 | void ViewCellsTree::SetRoot(ViewCell *root)
|
---|
| 1398 | {
|
---|
| 1399 | mRoot = root;
|
---|
| 1400 | }
|
---|
| 1401 |
|
---|
[660] | 1402 |
|
---|
[581] | 1403 | void ViewCellsTree::CollectBestViewCellSet(ViewCellContainer &viewCells,
|
---|
| 1404 | const int numViewCells)
|
---|
[580] | 1405 | {
|
---|
| 1406 | TraversalQueue tqueue;
|
---|
[581] | 1407 | tqueue.push(mRoot);
|
---|
[582] | 1408 |
|
---|
[580] | 1409 | while (!tqueue.empty())
|
---|
| 1410 | {
|
---|
| 1411 | ViewCell *vc = tqueue.top();
|
---|
[650] | 1412 | tqueue.pop();
|
---|
| 1413 |
|
---|
[582] | 1414 | // save the view cells if it is a leaf or if enough view cells have already been traversed
|
---|
| 1415 | // because of the priority queue, this will be the optimal set of v
|
---|
[650] | 1416 | if (vc->IsLeaf() || ((viewCells.size() + tqueue.size() + 1) >= numViewCells))
|
---|
[581] | 1417 | {
|
---|
| 1418 | viewCells.push_back(vc);
|
---|
| 1419 | }
|
---|
[582] | 1420 | else
|
---|
| 1421 | {
|
---|
[581] | 1422 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
[580] | 1423 |
|
---|
[581] | 1424 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1425 |
|
---|
| 1426 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1427 | {
|
---|
| 1428 | tqueue.push(*it);
|
---|
| 1429 | }
|
---|
| 1430 | }
|
---|
[580] | 1431 | }
|
---|
| 1432 | }
|
---|
[581] | 1433 |
|
---|
[580] | 1434 |
|
---|
[610] | 1435 | void ViewCellsTree::PullUpVisibility(ViewCellInterior *interior)
|
---|
[581] | 1436 | {
|
---|
[584] | 1437 | Intersectable::NewMail((int)interior->mChildren.size());
|
---|
[580] | 1438 |
|
---|
[581] | 1439 | ViewCellContainer::const_iterator cit, cit_end = interior->mChildren.end();
|
---|
| 1440 |
|
---|
| 1441 | ObjectPvsMap::const_iterator oit;
|
---|
| 1442 |
|
---|
| 1443 | // mail all objects in the leaf sets
|
---|
[584] | 1444 | // we are interested in the objects which are present in all leaves
|
---|
| 1445 | // => count how often an object is part of a child set
|
---|
[581] | 1446 | for (cit = interior->mChildren.begin(); cit != cit_end; ++ cit)
|
---|
| 1447 | {
|
---|
| 1448 | ViewCell *vc = *cit;
|
---|
| 1449 |
|
---|
| 1450 | ObjectPvsMap::const_iterator oit_end = vc->GetPvs().mEntries.end();
|
---|
| 1451 |
|
---|
| 1452 | for (oit = vc->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 1453 | {
|
---|
[584] | 1454 | Intersectable *obj = (*oit).first;
|
---|
| 1455 | if ((cit == interior->mChildren.begin()) && !obj->Mailed())
|
---|
| 1456 | obj->Mail();
|
---|
[581] | 1457 |
|
---|
[584] | 1458 | int incm = obj->IncMail();
|
---|
[581] | 1459 | }
|
---|
| 1460 | }
|
---|
| 1461 |
|
---|
| 1462 | interior->GetPvs().mEntries.clear();
|
---|
| 1463 |
|
---|
[584] | 1464 |
|
---|
[581] | 1465 | // only the objects which are present in all leaf pvs
|
---|
| 1466 | // should remain in the parent pvs
|
---|
[584] | 1467 | // these are the objects which have been mailed in all children
|
---|
[581] | 1468 | for (cit = interior->mChildren.begin(); cit != cit_end; ++ cit)
|
---|
| 1469 | {
|
---|
| 1470 | ViewCell *vc = *cit;
|
---|
| 1471 |
|
---|
| 1472 | ObjectPvsMap::const_iterator oit_end = vc->GetPvs().mEntries.end();
|
---|
| 1473 |
|
---|
| 1474 | for (oit = vc->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[585] | 1475 | {
|
---|
[581] | 1476 | if ((*oit).first->Mailed((int)interior->mChildren.size()))
|
---|
| 1477 | {
|
---|
| 1478 | interior->GetPvs().AddSample((*oit).first, (*oit).second.mSumPdf);
|
---|
| 1479 | }
|
---|
| 1480 | }
|
---|
| 1481 | }
|
---|
| 1482 |
|
---|
[584] | 1483 |
|
---|
| 1484 |
|
---|
| 1485 | // delete all the objects from the leaf sets which were moved to parent pvs
|
---|
[581] | 1486 | ObjectPvsMap::const_iterator oit_end = interior->GetPvs().mEntries.end();
|
---|
| 1487 |
|
---|
| 1488 | for (oit = interior->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 1489 | {
|
---|
| 1490 | for (cit = interior->mChildren.begin(); cit != cit_end; ++ cit)
|
---|
| 1491 | {
|
---|
[584] | 1492 | if (!(*cit)->GetPvs().RemoveSample((*oit).first, Limits::Infinity))
|
---|
| 1493 | Debug << "should not come here!" << endl;
|
---|
[581] | 1494 | }
|
---|
| 1495 | }
|
---|
[585] | 1496 |
|
---|
| 1497 | int dummy = interior->GetPvs().GetSize();
|
---|
| 1498 |
|
---|
| 1499 | for (cit = interior->mChildren.begin(); cit != cit_end; ++ cit)
|
---|
| 1500 | {
|
---|
| 1501 | dummy += (*cit)->GetPvs().GetSize();
|
---|
| 1502 | }
|
---|
| 1503 |
|
---|
[581] | 1504 | }
|
---|
| 1505 |
|
---|
| 1506 |
|
---|
[584] | 1507 | void ViewCellsTree::GetPvs(ViewCell *vc, ObjectPvs &pvs) const
|
---|
| 1508 | {
|
---|
[585] | 1509 | Intersectable::NewMail();
|
---|
| 1510 |
|
---|
| 1511 | if (!mIsCompressed)
|
---|
| 1512 | pvs = vc->GetPvs();
|
---|
| 1513 |
|
---|
| 1514 | int pvsSize = 0;
|
---|
| 1515 | ViewCell *root = vc;
|
---|
| 1516 |
|
---|
| 1517 | // also add pvs from this view cell to root
|
---|
| 1518 | while (root->GetParent())
|
---|
[584] | 1519 | {
|
---|
[585] | 1520 | root = root->GetParent();
|
---|
| 1521 | pvs.AddPvs(root->GetPvs());
|
---|
| 1522 | }
|
---|
[584] | 1523 |
|
---|
[585] | 1524 | stack<ViewCell *> tstack;
|
---|
| 1525 | tstack.push(vc);
|
---|
[584] | 1526 |
|
---|
[585] | 1527 | while (!tstack.empty())
|
---|
| 1528 | {
|
---|
| 1529 | vc = tstack.top();
|
---|
| 1530 | tstack.pop();
|
---|
| 1531 |
|
---|
| 1532 | pvs.AddPvs(vc->GetPvs());
|
---|
| 1533 |
|
---|
[584] | 1534 | if (!vc->IsLeaf())
|
---|
| 1535 | {
|
---|
| 1536 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
[585] | 1537 |
|
---|
[584] | 1538 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1539 |
|
---|
| 1540 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1541 | {
|
---|
[585] | 1542 | tstack.push(*it);
|
---|
| 1543 | }
|
---|
[584] | 1544 | }
|
---|
| 1545 | }
|
---|
| 1546 | }
|
---|
| 1547 |
|
---|
| 1548 |
|
---|
| 1549 | int ViewCellsTree::GetPvsSize(ViewCell *vc) const
|
---|
| 1550 | {
|
---|
[585] | 1551 | Intersectable::NewMail();
|
---|
[584] | 1552 |
|
---|
[585] | 1553 | if (!mIsCompressed)
|
---|
| 1554 | return vc->GetPvs().GetSize();
|
---|
| 1555 |
|
---|
| 1556 | int pvsSize = 0;
|
---|
| 1557 | ViewCell *root = vc;
|
---|
| 1558 |
|
---|
| 1559 | // also add pvs from this view cell to root
|
---|
| 1560 | while (root->GetParent())
|
---|
[584] | 1561 | {
|
---|
[585] | 1562 | root = root->GetParent();
|
---|
| 1563 | pvsSize += CountDiffPvs(root);
|
---|
| 1564 | }
|
---|
[584] | 1565 |
|
---|
[585] | 1566 | stack<ViewCell *> tstack;
|
---|
| 1567 | tstack.push(vc);
|
---|
[584] | 1568 |
|
---|
[585] | 1569 | while (!tstack.empty())
|
---|
| 1570 | {
|
---|
| 1571 | vc = tstack.top();
|
---|
| 1572 | tstack.pop();
|
---|
| 1573 |
|
---|
| 1574 | pvsSize += CountDiffPvs(vc);
|
---|
| 1575 |
|
---|
| 1576 | if (!vc->IsLeaf())
|
---|
[584] | 1577 | {
|
---|
[585] | 1578 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1579 |
|
---|
| 1580 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1581 |
|
---|
| 1582 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1583 | {
|
---|
| 1584 | tstack.push(*it);
|
---|
| 1585 | }
|
---|
[584] | 1586 | }
|
---|
| 1587 | }
|
---|
| 1588 |
|
---|
| 1589 | return pvsSize;
|
---|
| 1590 |
|
---|
| 1591 | }
|
---|
| 1592 |
|
---|
| 1593 |
|
---|
| 1594 | float ViewCellsTree::GetMemoryCost(ViewCell *vc) const
|
---|
| 1595 | {
|
---|
| 1596 | const float entrySize =
|
---|
| 1597 | sizeof(PvsData<Intersectable *>) + sizeof(Intersectable *);
|
---|
| 1598 |
|
---|
| 1599 | return (float)GetNumPvsEntries(vc) * entrySize;
|
---|
| 1600 | }
|
---|
| 1601 |
|
---|
| 1602 |
|
---|
| 1603 | int ViewCellsTree::GetNumPvsEntries(ViewCell *vc) const
|
---|
| 1604 | {
|
---|
[590] | 1605 | int pvsSize = 0;
|
---|
| 1606 | // only count leaves for uncompressed method for fairness
|
---|
| 1607 | if (mIsCompressed || vc->IsLeaf())
|
---|
| 1608 | pvsSize = vc->GetPvs().GetSize();
|
---|
[584] | 1609 |
|
---|
| 1610 | if (!vc->IsLeaf())
|
---|
| 1611 | {
|
---|
| 1612 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1613 |
|
---|
| 1614 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1615 |
|
---|
| 1616 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1617 | {
|
---|
| 1618 | pvsSize += GetNumPvsEntries(*it);
|
---|
| 1619 | }
|
---|
| 1620 | }
|
---|
| 1621 |
|
---|
| 1622 | return pvsSize;
|
---|
| 1623 | }
|
---|
| 1624 |
|
---|
| 1625 |
|
---|
| 1626 | bool ViewCellsTree::IsCompressed() const
|
---|
| 1627 | {
|
---|
| 1628 | return mIsCompressed;
|
---|
| 1629 | }
|
---|
| 1630 |
|
---|
| 1631 |
|
---|
[590] | 1632 | ViewCell *ViewCellsTree::GetActiveViewCell(ViewCell *vc) const
|
---|
| 1633 | {
|
---|
[660] | 1634 | while (vc->GetParent() && !vc->IsActive())
|
---|
[590] | 1635 | {
|
---|
| 1636 | vc = vc->GetParent();
|
---|
| 1637 | }
|
---|
| 1638 |
|
---|
| 1639 | return vc;
|
---|
| 1640 | }
|
---|
| 1641 |
|
---|
| 1642 |
|
---|
[651] | 1643 | void ViewCellsTree::PropagatePvs(ViewCell *vc)
|
---|
[664] | 1644 | {
|
---|
| 1645 | ViewCell *viewCell = vc;
|
---|
| 1646 |
|
---|
[660] | 1647 | // propagate pvs up
|
---|
[664] | 1648 | while (viewCell->GetParent())
|
---|
[610] | 1649 | {
|
---|
[664] | 1650 | viewCell->GetParent()->GetPvs().Merge(vc->GetPvs());
|
---|
| 1651 | viewCell = viewCell->GetParent();
|
---|
[610] | 1652 | }
|
---|
[651] | 1653 |
|
---|
| 1654 | if (vc->IsLeaf())
|
---|
| 1655 | return;
|
---|
| 1656 |
|
---|
[660] | 1657 | // propagate pvs to the leaves
|
---|
[651] | 1658 | stack<ViewCell *> tstack;
|
---|
| 1659 | tstack.push(vc);
|
---|
| 1660 |
|
---|
| 1661 | while (!tstack.empty())
|
---|
| 1662 | {
|
---|
| 1663 | ViewCell *viewCell = tstack.top();
|
---|
| 1664 | tstack.pop();
|
---|
| 1665 |
|
---|
| 1666 | if (viewCell != vc)
|
---|
| 1667 | {
|
---|
| 1668 | viewCell->GetPvs().Merge(vc->GetPvs());
|
---|
| 1669 | }
|
---|
| 1670 |
|
---|
| 1671 | if (!viewCell->IsLeaf())
|
---|
| 1672 | {
|
---|
| 1673 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
[664] | 1674 |
|
---|
[651] | 1675 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1676 |
|
---|
| 1677 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1678 | {
|
---|
| 1679 | tstack.push(*it);
|
---|
| 1680 | }
|
---|
| 1681 | }
|
---|
| 1682 | }
|
---|
[610] | 1683 | }
|
---|
[605] | 1684 |
|
---|
[610] | 1685 |
|
---|
[650] | 1686 | void ViewCellsTree::AssignRandomColors()
|
---|
[608] | 1687 | {
|
---|
[675] | 1688 | TraversalQueue tqueue;
|
---|
| 1689 |
|
---|
| 1690 | tqueue.push(mRoot);
|
---|
| 1691 | mRoot->SetColor(RandomColor(0.3f, 1.0f));
|
---|
| 1692 |
|
---|
| 1693 | while (!tqueue.empty())
|
---|
[608] | 1694 | {
|
---|
[675] | 1695 | ViewCell *vc = tqueue.top();
|
---|
| 1696 | tqueue.pop();
|
---|
[650] | 1697 |
|
---|
[675] | 1698 | // save the view cells if it is a leaf or if enough view cells have already been traversed
|
---|
| 1699 | // because of the priority queue, this will be the optimal set of v
|
---|
| 1700 | if (!vc->IsLeaf())
|
---|
| 1701 | {
|
---|
| 1702 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1703 |
|
---|
| 1704 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1705 |
|
---|
| 1706 | float maxProbability = -1.0f;
|
---|
| 1707 |
|
---|
| 1708 | ViewCell *maxViewCell = NULL;
|
---|
| 1709 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1710 | {
|
---|
| 1711 | ViewCell *v = *it;
|
---|
| 1712 |
|
---|
| 1713 | // set random color
|
---|
| 1714 | v->SetColor(RandomColor(0.3f, 1.0f));
|
---|
| 1715 |
|
---|
| 1716 | if (v->GetVolume() > maxProbability)
|
---|
| 1717 | {
|
---|
| 1718 | maxProbability = v->GetVolume();
|
---|
| 1719 | maxViewCell = v;
|
---|
| 1720 | }
|
---|
| 1721 |
|
---|
| 1722 | if (maxViewCell)
|
---|
| 1723 | maxViewCell->SetColor(vc->GetColor());
|
---|
| 1724 |
|
---|
| 1725 | tqueue.push(v);
|
---|
| 1726 | }
|
---|
| 1727 | }
|
---|
[608] | 1728 | }
|
---|
| 1729 | }
|
---|
| 1730 |
|
---|
[675] | 1731 |
|
---|
[608] | 1732 | /** Get costs resulting from each merge step. */
|
---|
| 1733 | void
|
---|
| 1734 | ViewCellsTree::GetCostFunction(vector<float> &costFunction)
|
---|
| 1735 | {
|
---|
| 1736 | TraversalQueue tqueue;
|
---|
| 1737 | tqueue.push(mRoot);
|
---|
| 1738 | while (!tqueue.empty()) {
|
---|
| 1739 | ViewCell *vc = tqueue.top();
|
---|
[650] | 1740 | tqueue.pop();
|
---|
[608] | 1741 | // save the view cells if it is a leaf or if enough view cells have already been traversed
|
---|
| 1742 | // because of the priority queue, this will be the optimal set of v
|
---|
| 1743 | if (!vc->IsLeaf()) {
|
---|
| 1744 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1745 | costFunction.push_back(interior->GetCost());
|
---|
| 1746 |
|
---|
| 1747 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1748 |
|
---|
| 1749 | for (it = interior->mChildren.begin(); it != it_end; ++ it) {
|
---|
| 1750 | tqueue.push(*it);
|
---|
| 1751 | }
|
---|
| 1752 |
|
---|
| 1753 | }
|
---|
| 1754 | }
|
---|
| 1755 | }
|
---|
| 1756 |
|
---|
| 1757 |
|
---|
[605] | 1758 | void ViewCellsTree::UpdateViewCellsStats(ViewCell *vc, ViewCellsStatistics &vcStat)
|
---|
| 1759 | {
|
---|
| 1760 | ++ vcStat.viewCells;
|
---|
| 1761 |
|
---|
| 1762 | const int pvsSize = GetPvsSize(vc);
|
---|
| 1763 |
|
---|
[613] | 1764 | vcStat.pvsSize += pvsSize;
|
---|
[605] | 1765 |
|
---|
| 1766 | if (pvsSize == 0)
|
---|
| 1767 | ++ vcStat.emptyPvs;
|
---|
| 1768 |
|
---|
| 1769 | if (pvsSize > vcStat.maxPvs)
|
---|
| 1770 | vcStat.maxPvs = pvsSize;
|
---|
| 1771 |
|
---|
| 1772 | if (pvsSize < vcStat.minPvs)
|
---|
| 1773 | vcStat.minPvs = pvsSize;
|
---|
| 1774 |
|
---|
| 1775 | if (!vc->GetValid())
|
---|
| 1776 | ++ vcStat.invalid;
|
---|
[613] | 1777 |
|
---|
| 1778 | /*ViewCellsContainer leaves;
|
---|
| 1779 | CollectLeaves(vc, leaves);
|
---|
| 1780 |
|
---|
| 1781 | vcStat.leaves = (int)leaves.size();*/
|
---|
[605] | 1782 | }
|
---|
| 1783 |
|
---|
| 1784 |
|
---|
[610] | 1785 | bool ViewCellsTree::Export(ofstream &stream)
|
---|
| 1786 | {
|
---|
| 1787 | ExportViewCell(mRoot, stream);
|
---|
[605] | 1788 |
|
---|
[610] | 1789 | return true;
|
---|
| 1790 | }
|
---|
| 1791 |
|
---|
| 1792 |
|
---|
[651] | 1793 | void ViewCellsTree::CreateUniqueViewCellsIds()
|
---|
[610] | 1794 | {
|
---|
[651] | 1795 | stack<ViewCell *> tstack;
|
---|
[610] | 1796 |
|
---|
[651] | 1797 | int currentId = 0;
|
---|
| 1798 |
|
---|
| 1799 | tstack.push(mRoot);
|
---|
| 1800 |
|
---|
| 1801 | while (!tstack.empty())
|
---|
[610] | 1802 | {
|
---|
[651] | 1803 | ViewCell *vc = tstack.top();
|
---|
| 1804 | tstack.pop();
|
---|
| 1805 |
|
---|
| 1806 | vc->SetId(currentId ++);
|
---|
| 1807 |
|
---|
| 1808 | if (!vc->IsLeaf())
|
---|
| 1809 | {
|
---|
| 1810 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1811 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1812 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1813 | {
|
---|
| 1814 | tstack.push(*it);
|
---|
| 1815 | }
|
---|
| 1816 | }
|
---|
[610] | 1817 | }
|
---|
[651] | 1818 | }
|
---|
[610] | 1819 |
|
---|
| 1820 |
|
---|
[651] | 1821 | void ViewCellsTree::ExportViewCell(ViewCell *viewCell, ofstream &stream)
|
---|
| 1822 | {
|
---|
| 1823 | ObjectPvsMap::iterator it, it_end = viewCell->GetPvs().mEntries.end();
|
---|
| 1824 |
|
---|
[610] | 1825 | if (viewCell->IsLeaf())
|
---|
| 1826 | {
|
---|
| 1827 | stream << "<Leaf ";
|
---|
| 1828 | stream << "id=\"" << viewCell->GetId() << "\" ";
|
---|
[660] | 1829 | stream << "active=\"" << viewCell->IsActive() << "\" ";
|
---|
[610] | 1830 | stream << "mergecost=\"" << viewCell->GetMergeCost() << "\" ";
|
---|
| 1831 | stream << "pvs=\"";
|
---|
[651] | 1832 | if (0)// test with empty pvs
|
---|
| 1833 | for (it = viewCell->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
| 1834 | {
|
---|
| 1835 | stream << (*it).first->GetId() << " ";
|
---|
| 1836 | }
|
---|
| 1837 |
|
---|
| 1838 |
|
---|
| 1839 | stream << "\" />" << endl;
|
---|
| 1840 | //stream << " </Leaf>" << endl;
|
---|
[610] | 1841 | }
|
---|
| 1842 | else
|
---|
| 1843 | {
|
---|
| 1844 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 1845 |
|
---|
| 1846 | stream << "<Interior ";
|
---|
| 1847 | stream << "id=\"" << viewCell->GetId() << "\" ";
|
---|
[660] | 1848 | stream << "active=\"" << viewCell->IsActive() << "\" ";
|
---|
[610] | 1849 | stream << "mergecost=\"" << viewCell->GetMergeCost() << "\" ";
|
---|
| 1850 | stream << "pvs=\"";
|
---|
| 1851 |
|
---|
[651] | 1852 | if (0)// test with empty pvs
|
---|
| 1853 | for (it = viewCell->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
| 1854 | {
|
---|
| 1855 | stream << (*it).first->GetId() << " ";
|
---|
| 1856 | }
|
---|
| 1857 |
|
---|
| 1858 | stream << "\" >" << endl;
|
---|
| 1859 |
|
---|
[610] | 1860 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 1861 |
|
---|
| 1862 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1863 | {
|
---|
| 1864 | ExportViewCell(*it, stream);
|
---|
| 1865 | }
|
---|
| 1866 |
|
---|
| 1867 | stream << "</Interior>" << endl;
|
---|
| 1868 | }
|
---|
| 1869 | }
|
---|
| 1870 |
|
---|
| 1871 |
|
---|
[660] | 1872 | void ViewCellsTree::ResetPvs()
|
---|
| 1873 | {
|
---|
| 1874 | stack<ViewCell *> tstack;
|
---|
[610] | 1875 |
|
---|
[660] | 1876 | tstack.push(mRoot);
|
---|
| 1877 |
|
---|
| 1878 | while (!tstack.empty())
|
---|
| 1879 | {
|
---|
| 1880 | ViewCell *vc = tstack.top();
|
---|
| 1881 | tstack.pop();
|
---|
| 1882 |
|
---|
| 1883 | vc->GetPvs().mEntries.clear();
|
---|
[666] | 1884 |
|
---|
[660] | 1885 | if (!vc->IsLeaf())
|
---|
| 1886 | {
|
---|
| 1887 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(vc);
|
---|
| 1888 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
[666] | 1889 |
|
---|
[660] | 1890 | for (it = interior->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1891 | {
|
---|
| 1892 | tstack.push(*it);
|
---|
| 1893 | }
|
---|
| 1894 | }
|
---|
| 1895 | }
|
---|
| 1896 | }
|
---|
| 1897 |
|
---|
| 1898 |
|
---|
| 1899 | void ViewCellsTree::SetActiveSetToLeaves()
|
---|
| 1900 | {
|
---|
| 1901 | }
|
---|
| 1902 |
|
---|
[580] | 1903 | /**************************************************************************/
|
---|
| 1904 | /* MergeCandidate implementation */
|
---|
| 1905 | /**************************************************************************/
|
---|
| 1906 |
|
---|
| 1907 |
|
---|
| 1908 | MergeCandidate::MergeCandidate(ViewCell *l, ViewCell *r):
|
---|
| 1909 | mRenderCost(0),
|
---|
| 1910 | mDeviationIncr(0),
|
---|
| 1911 | mLeftViewCell(l),
|
---|
[586] | 1912 | mRightViewCell(r),
|
---|
| 1913 | mInitialLeftViewCell(l),
|
---|
| 1914 | mInitialRightViewCell(r)
|
---|
[580] | 1915 | {
|
---|
| 1916 | //EvalMergeCost();
|
---|
| 1917 | }
|
---|
| 1918 |
|
---|
| 1919 |
|
---|
| 1920 | void MergeCandidate::SetRightViewCell(ViewCell *v)
|
---|
| 1921 | {
|
---|
| 1922 | mRightViewCell = v;
|
---|
| 1923 | }
|
---|
| 1924 |
|
---|
| 1925 |
|
---|
| 1926 | void MergeCandidate::SetLeftViewCell(ViewCell *v)
|
---|
| 1927 | {
|
---|
| 1928 | mLeftViewCell = v;
|
---|
| 1929 | }
|
---|
| 1930 |
|
---|
| 1931 |
|
---|
| 1932 | ViewCell *MergeCandidate::GetRightViewCell() const
|
---|
| 1933 | {
|
---|
| 1934 | return mRightViewCell;
|
---|
| 1935 | }
|
---|
| 1936 |
|
---|
| 1937 |
|
---|
| 1938 | ViewCell *MergeCandidate::GetLeftViewCell() const
|
---|
| 1939 | {
|
---|
| 1940 | return mLeftViewCell;
|
---|
| 1941 | }
|
---|
| 1942 |
|
---|
| 1943 |
|
---|
| 1944 | ViewCell *MergeCandidate::GetInitialRightViewCell() const
|
---|
| 1945 | {
|
---|
| 1946 | return mInitialRightViewCell;
|
---|
| 1947 | }
|
---|
| 1948 |
|
---|
| 1949 |
|
---|
| 1950 | ViewCell *MergeCandidate::GetInitialLeftViewCell() const
|
---|
| 1951 | {
|
---|
| 1952 | return mInitialLeftViewCell;
|
---|
| 1953 | }
|
---|
| 1954 |
|
---|
| 1955 |
|
---|
| 1956 | bool MergeCandidate::IsValid() const
|
---|
| 1957 | {
|
---|
[582] | 1958 | return !(mLeftViewCell->mParent || mRightViewCell->mParent);
|
---|
[580] | 1959 | }
|
---|
| 1960 |
|
---|
| 1961 |
|
---|
| 1962 | float MergeCandidate::GetRenderCost() const
|
---|
| 1963 | {
|
---|
| 1964 | return mRenderCost;
|
---|
| 1965 | }
|
---|
| 1966 |
|
---|
| 1967 |
|
---|
| 1968 | float MergeCandidate::GetDeviationIncr() const
|
---|
| 1969 | {
|
---|
| 1970 | return mDeviationIncr;
|
---|
| 1971 | }
|
---|
| 1972 |
|
---|
| 1973 |
|
---|
| 1974 | float MergeCandidate::GetMergeCost() const
|
---|
| 1975 | {
|
---|
| 1976 | return mRenderCost * sRenderCostWeight +
|
---|
| 1977 | mDeviationIncr * (1.0f - sRenderCostWeight);
|
---|
| 1978 | }
|
---|
| 1979 |
|
---|
| 1980 |
|
---|
[605] | 1981 |
|
---|
[610] | 1982 |
|
---|
| 1983 |
|
---|
| 1984 |
|
---|
[580] | 1985 | /************************************************************************/
|
---|
| 1986 | /* MergeStatistics implementation */
|
---|
| 1987 | /************************************************************************/
|
---|
| 1988 |
|
---|
| 1989 |
|
---|
| 1990 | void MergeStatistics::Print(ostream &app) const
|
---|
| 1991 | {
|
---|
| 1992 | app << "===== Merge statistics ===============\n";
|
---|
| 1993 |
|
---|
| 1994 | app << setprecision(4);
|
---|
| 1995 |
|
---|
| 1996 | app << "#N_CTIME ( Overall time [s] )\n" << Time() << " \n";
|
---|
| 1997 |
|
---|
| 1998 | app << "#N_CCTIME ( Collect candidates time [s] )\n" << collectTime * 1e-3f << " \n";
|
---|
| 1999 |
|
---|
| 2000 | app << "#N_MTIME ( Merge time [s] )\n" << mergeTime * 1e-3f << " \n";
|
---|
| 2001 |
|
---|
| 2002 | app << "#N_NODES ( Number of nodes before merge )\n" << nodes << "\n";
|
---|
| 2003 |
|
---|
| 2004 | app << "#N_CANDIDATES ( Number of merge candidates )\n" << candidates << "\n";
|
---|
| 2005 |
|
---|
| 2006 | app << "#N_MERGEDSIBLINGS ( Number of merged siblings )\n" << siblings << "\n";
|
---|
| 2007 |
|
---|
| 2008 | app << "#OVERALLCOST ( overall merge cost )\n" << overallCost << "\n";
|
---|
| 2009 |
|
---|
| 2010 | app << "#N_MERGEDNODES ( Number of merged nodes )\n" << merged << "\n";
|
---|
| 2011 |
|
---|
| 2012 | app << "#MAX_TREEDIST ( Maximal distance in tree of merged leaves )\n" << maxTreeDist << "\n";
|
---|
| 2013 |
|
---|
| 2014 | app << "#AVG_TREEDIST ( Average distance in tree of merged leaves )\n" << AvgTreeDist() << "\n";
|
---|
| 2015 |
|
---|
| 2016 | app << "#EXPECTEDCOST ( expected render cost )\n" << expectedRenderCost << "\n";
|
---|
| 2017 |
|
---|
| 2018 | app << "#DEVIATION ( deviation )\n" << deviation << "\n";
|
---|
| 2019 |
|
---|
| 2020 | app << "#HEURISTICS ( heuristics )\n" << heuristics << "\n";
|
---|
| 2021 |
|
---|
| 2022 |
|
---|
| 2023 | app << "===== END OF BspTree statistics ==========\n";
|
---|
[608] | 2024 | }
|
---|