[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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[1233] | 10 | #include "HierarchyManager.h"
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[440] | 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[931] | 17 | #include "BoundingBoxConverter.h"
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[979] | 18 | #include "GlRenderer.h"
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[1001] | 19 | #include "ResourceManager.h"
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[1315] | 20 | #include "IntersectableWrapper.h"
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[1233] | 21 | #include "VspTree.h"
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| 22 | #include "OspTree.h"
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[1259] | 23 | #include "BvHierarchy.h"
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[1520] | 24 | #include "SamplingStrategy.h"
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[1545] | 25 | #include "SceneGraph.h"
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[440] | 26 |
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[1278] | 27 |
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[1715] | 28 | #define ABS_CONTRIBUTION_WEIGHT 1.0f
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| 29 |
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[1667] | 30 | // warning: Should not count origin object for sampling because it disturbs heuristics
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[1715] | 31 | #define SAMPLE_ORIGIN_OBJECTS 0 // matt temp
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[931] | 32 |
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[1594] | 33 | // $$JB HACK
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[1627] | 34 | #define USE_KD_PVS 0
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[1694] | 35 | #define KD_PVS_AREA (5*1e-4f)
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[1486] | 36 |
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[1703] | 37 |
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| 38 |
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[863] | 39 | namespace GtpVisibilityPreprocessor {
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[860] | 40 |
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| 41 |
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[712] | 42 | // HACK
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| 43 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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[1744] | 44 | //const static bool CLAMP_TO_BOX = false;
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| 45 | const static bool CLAMP_TO_BOX = true;
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[517] | 46 |
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[1705] | 47 |
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[1703] | 48 | int ViewCellsManager::sRenderCostEvaluationType = 0;
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| 49 |
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| 50 |
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[697] | 51 | template <typename T> class myless
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| 52 | {
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| 53 | public:
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| 54 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 55 | bool operator() (T v1, T v2) const
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| 56 | {
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| 57 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 58 | }
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| 59 | };
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| 60 |
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| 61 |
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[1264] | 62 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 63 | mRenderer(NULL),
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[574] | 64 | mInitialSamples(0),
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[440] | 65 | mConstructionSamples(0),
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| 66 | mPostProcessSamples(0),
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[470] | 67 | mVisualizationSamples(0),
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| 68 | mTotalAreaValid(false),
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[517] | 69 | mTotalArea(0.0f),
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[547] | 70 | mViewCellsFinished(false),
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[562] | 71 | mMaxPvsSize(9999999),
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[1686] | 72 | mMinPvsSize(0),
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[719] | 73 | mMaxPvsRatio(1.0),
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[1145] | 74 | mViewCellPvsIsUpdated(false),
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[1264] | 75 | mPreprocessor(NULL),
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[1545] | 76 | mViewCellsTree(viewCellsTree),
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| 77 | mUsePredefinedViewCells(false)
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[440] | 78 | {
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[542] | 79 | mViewSpaceBox.Initialize();
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[482] | 80 | ParseEnvironment();
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[580] | 81 |
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[1264] | 82 | mViewCellsTree->SetViewCellsManager(this);
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[440] | 83 | }
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| 84 |
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[517] | 85 |
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[482] | 86 | void ViewCellsManager::ParseEnvironment()
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| 87 | {
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[503] | 88 | // visualization stuff
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[1004] | 89 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 90 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 91 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 92 |
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[1004] | 93 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 94 |
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[1004] | 95 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 96 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 98 |
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[1004] | 99 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 100 |
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[1004] | 101 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 102 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 103 |
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[1004] | 104 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 105 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 106 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 107 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 108 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 109 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 110 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 111 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[1703] | 112 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", sRenderCostEvaluationType);
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[710] | 113 |
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[1004] | 114 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 115 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 116 |
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[664] | 117 | char buf[100];
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[1004] | 118 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 119 |
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[660] | 120 |
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[1744] | 121 | /*ObjectPvs pvs1, pvs2, mergedPvs;
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[1742] | 122 |
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| 123 | pvs1.AddSample((Intersectable *)1, 1);
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| 124 | pvs1.AddSample((Intersectable *)3, 1);
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| 125 | pvs1.AddSample((Intersectable *)6, 1);
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| 126 | pvs1.AddSample((Intersectable *)7, 1);
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| 127 | pvs1.AddSample((Intersectable *)9, 1);
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| 128 | pvs1.AddSample((Intersectable *)12, 1);
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| 129 | pvs1.AddSample((Intersectable *)15, 1);
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| 130 | pvs1.AddSample((Intersectable *)7, 1);
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| 131 | pvs2.AddSample((Intersectable *)3, 1);
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| 132 | pvs2.AddSample((Intersectable *)4, 1);
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| 133 | pvs2.AddSample((Intersectable *)6, 1);
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| 134 | pvs2.AddSample((Intersectable *)8, 1);
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| 135 | pvs2.AddSample((Intersectable *)9, 1);
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| 136 | pvs2.AddSample((Intersectable *)14, 1);
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| 137 |
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| 138 | ObjectPvs::Merge(mergedPvs, pvs1, pvs2);
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| 139 |
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| 140 | Debug << "\npvs1\n";
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| 141 | cout << "\npvs1\n";
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| 142 | ObjectPvsIterator pvs1It = pvs1.GetIterator();
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| 143 |
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| 144 | while (pvs1It.HasMoreEntries())
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| 145 | {
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| 146 | ObjectPvsEntry entry = pvs1It.Next();
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| 147 |
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| 148 | Debug << (int)entry.mObject << " ";
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| 149 | cout << (int)entry.mObject << " ";
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| 150 | }
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| 151 |
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| 152 | Debug << "\npvs2\n";
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| 153 | cout << "\npvs2\n";
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| 154 | ObjectPvsIterator pvs2It = pvs2.GetIterator();
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| 155 |
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| 156 | while (pvs2It.HasMoreEntries())
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| 157 | {
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| 158 | ObjectPvsEntry entry = pvs2It.Next();
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| 159 |
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| 160 | Debug << (int)entry.mObject << " ";
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| 161 | cout << (int)entry.mObject << " ";
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| 162 | }
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| 163 |
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| 164 | Debug << "\nmerged\n";
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| 165 | cout << "\nmerged\n";
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| 166 | ObjectPvsIterator mergedIt = mergedPvs.GetIterator();
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| 167 |
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| 168 | while (mergedIt.HasMoreEntries())
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| 169 | {
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| 170 | ObjectPvsEntry entry = mergedIt.Next();
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| 171 | Debug << (int)entry.mObject << " " << entry.mData.mSumPdf << " x ";
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| 172 | cout << (int)entry.mObject << " " << entry.mData.mSumPdf << " x ";
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| 173 | }
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[1744] | 174 | */
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[1020] | 175 | // sampling type for view cells construction samples
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[1695] | 176 | if (strcmp(buf, "object") == 0)
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[722] | 177 | {
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[1695] | 178 | mSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 179 | }
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| 180 | else if (strcmp(buf, "box") == 0)
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| 181 | {
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[1520] | 182 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 183 | }
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[664] | 184 | else if (strcmp(buf, "directional") == 0)
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[722] | 185 | {
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[1520] | 186 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 187 | }
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[1020] | 188 | else if (strcmp(buf, "object_directional") == 0)
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| 189 | {
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[1520] | 190 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 191 | }
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[1695] | 192 | else if (strcmp(buf, "reverse_object") == 0)
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| 193 | {
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| 194 | mSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 195 | }
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[1022] | 196 | /*else if (strcmp(buf, "interior") == 0)
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| 197 | {
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| 198 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 199 | }*/
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[1020] | 200 | else
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| 201 | {
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[666] | 202 | Debug << "error! wrong sampling type" << endl;
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| 203 | exit(0);
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| 204 | }
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[660] | 205 |
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[1020] | 206 | // sampling type for evaluation samples
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[1004] | 207 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 208 |
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[1695] | 209 | if (strcmp(buf, "object") == 0)
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[722] | 210 | {
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[1695] | 211 | mEvaluationSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 212 | }
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| 213 | else if (strcmp(buf, "box") == 0)
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| 214 | {
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[1520] | 215 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 216 | }
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| 217 | else if (strcmp(buf, "directional") == 0)
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| 218 | {
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[1520] | 219 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 220 | }
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[1020] | 221 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 222 | {
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[1520] | 223 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 224 | }
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[1695] | 225 | else if (strcmp(buf, "reverse_object") == 0)
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| 226 | {
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| 227 | mEvaluationSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 228 | }
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[1022] | 229 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 230 | {
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[1520] | 231 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 232 | }*/
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[1020] | 233 | else
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| 234 | {
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[1695] | 235 | mEvaluationSamplingType = -1;
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[722] | 236 | Debug << "error! wrong sampling type" << endl;
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| 237 | exit(0);
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| 238 | }
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[503] | 239 |
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[1004] | 240 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 241 |
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[734] | 242 | if (strcmp(buf, "perobject") == 0)
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[728] | 243 | {
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[1703] | 244 | sRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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[728] | 245 | }
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[1703] | 246 | else if (strcmp(buf, "pertriangle") == 0)
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[728] | 247 | {
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[1703] | 248 | sRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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[728] | 249 | }
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| 250 | else
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| 251 | {
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| 252 | Debug << "error! wrong sampling type" << endl;
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| 253 | exit(0);
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| 254 | }
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| 255 |
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[1004] | 256 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 257 |
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[482] | 258 | if (strcmp(buf, "PVS") == 0)
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| 259 | mColorCode = 1;
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| 260 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 261 | mColorCode = 2;
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| 262 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 263 | mColorCode = 3;
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| 264 | else
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| 265 | mColorCode = 0;
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| 266 |
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[664] | 267 |
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[1418] | 268 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 269 | Debug << "color code: " << mColorCode << endl;
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| 270 |
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| 271 | Debug << "export rays: " << mExportRays << endl;
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| 272 | Debug << "export geometry: " << mExportGeometry << endl;
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| 273 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 274 |
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| 275 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 276 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 277 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 278 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 279 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 280 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 281 | Debug << "export to file: " << mExportViewCells << endl;
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| 282 |
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[801] | 283 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 284 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 285 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 286 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 287 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 288 | Debug << "sampling type: " << mSamplingType << endl;
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[1703] | 289 | Debug << "render cost evaluation type: " << sRenderCostEvaluationType << endl;
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[728] | 290 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 291 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 292 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 293 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 294 |
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| 295 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 296 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[664] | 297 | Debug << endl;
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[440] | 298 | }
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| 299 |
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[485] | 300 |
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[440] | 301 | ViewCellsManager::~ViewCellsManager()
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| 302 | {
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[1020] | 303 | // HACK: if view cells tree does not
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[1264] | 304 | // handle view cells, we have to do it here
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[1020] | 305 | // question: rather create view cells resource manager?
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[598] | 306 | if (!ViewCellsTreeConstructed())
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[1141] | 307 | {
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[598] | 308 | CLEAR_CONTAINER(mViewCells);
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[1141] | 309 | }
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[1696] | 310 | else
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| 311 | {
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| 312 | DEL_PTR(mViewCellsTree);
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| 313 | }
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[440] | 314 | }
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| 315 |
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[1743] | 316 | Intersectable *
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| 317 | ViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
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| 318 | {
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| 319 | return isTermination ? ray.mTerminationObject : ray.mOriginObject;
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| 320 | }
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[1221] | 321 |
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[1737] | 322 | void
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| 323 | ViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
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| 324 | {
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| 325 | GetPreprocessor()->mKdTree->CollectObjects(box, objects);
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| 326 | }
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[1613] | 327 |
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[1221] | 328 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 329 | {
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| 330 | Mesh *m = vc->GetMesh();
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| 331 |
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[1563] | 332 | if (m)
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| 333 | {
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| 334 | m->ComputeBoundingBox();
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| 335 | return m->mBox;
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[859] | 336 | }
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[485] | 337 |
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[859] | 338 | AxisAlignedBox3 box;
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| 339 | box.Initialize();
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| 340 |
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| 341 | if (!vc->IsLeaf()) {
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| 342 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 343 |
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| 344 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 345 | for (; it != vci->mChildren.end(); ++it) {
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| 346 | box.Include(GetViewCellBox(*it));
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| 347 | }
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| 348 | }
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| 349 |
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| 350 | return box;
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| 351 | }
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| 352 |
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[693] | 353 |
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[574] | 354 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 355 | const int sampleType,
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| 356 | VssRayContainer &passSamples) const
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[527] | 357 | {
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[570] | 358 | SimpleRayContainer simpleRays;
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[1633] | 359 | long startTime = GetTime();
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[564] | 360 |
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[1701] | 361 | // create one third of each type
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| 362 | int stype;
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| 363 |
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[1709] | 364 | const int numStrategies = 3;
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| 365 |
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[1701] | 366 | stype = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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[1709] | 367 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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[1701] | 368 |
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| 369 | stype = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[1709] | 370 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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[1701] | 371 |
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[1709] | 372 | if (0)
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| 373 | {
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| 374 | stype = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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| 375 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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| 376 | }
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[1701] | 377 |
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[1708] | 378 | stype = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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[1709] | 379 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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[1708] | 380 |
|
---|
[1633] | 381 | cout << "generated " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1221] | 382 |
|
---|
[1633] | 383 | startTime = GetTime();
|
---|
[573] | 384 | // shoot simple ray and add it to importance samples
|
---|
[1520] | 385 | mPreprocessor->CastRays(simpleRays, passSamples, true);
|
---|
[1633] | 386 | cout << "cast " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[570] | 387 |
|
---|
[574] | 388 | return (int)passSamples.size();
|
---|
| 389 | }
|
---|
[570] | 390 |
|
---|
[574] | 391 |
|
---|
| 392 | /// helper function which destroys rays or copies them into the output ray container
|
---|
[639] | 393 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
[574] | 394 | {
|
---|
| 395 | cout << "disposing samples ... ";
|
---|
[582] | 396 | long startTime = GetTime();
|
---|
| 397 | int n = (int)rays.size();
|
---|
| 398 |
|
---|
[573] | 399 | if (outRays)
|
---|
[542] | 400 | {
|
---|
[574] | 401 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 402 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 403 | {
|
---|
| 404 | outRays->push_back(*it);
|
---|
| 405 | }
|
---|
[573] | 406 | }
|
---|
| 407 | else
|
---|
| 408 | {
|
---|
[639] | 409 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 410 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 411 | {
|
---|
| 412 | if (!(*it)->IsActive())
|
---|
| 413 | delete (*it);
|
---|
| 414 | }
|
---|
[573] | 415 | }
|
---|
[639] | 416 |
|
---|
[574] | 417 | cout << "finished" << endl;
|
---|
[582] | 418 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[573] | 419 | }
|
---|
[570] | 420 |
|
---|
| 421 |
|
---|
[573] | 422 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 423 | {
|
---|
| 424 | int numSamples = 0;
|
---|
[1077] | 425 |
|
---|
[573] | 426 | SimpleRayContainer simpleRays;
|
---|
[574] | 427 | VssRayContainer initialSamples;
|
---|
[540] | 428 |
|
---|
[1381] | 429 | // store pointer to preprocessor for further use during construction
|
---|
| 430 | mPreprocessor = preprocessor;
|
---|
| 431 |
|
---|
[1563] | 432 |
|
---|
[1381] | 433 | ///////////////////////////////////////////////////////
|
---|
| 434 | //-- Initial sampling for the construction of the view cell hierarchy.
|
---|
| 435 | //-- We use uniform sampling / box based sampling.
|
---|
| 436 |
|
---|
[752] | 437 | long startTime = GetTime();
|
---|
[1633] | 438 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
|
---|
[1414] | 439 |
|
---|
[1381] | 440 | // cast initial samples
|
---|
| 441 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
|
---|
[1278] | 442 |
|
---|
[1221] | 443 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 444 |
|
---|
[573] | 445 | // construct view cells
|
---|
[752] | 446 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 447 |
|
---|
[727] | 448 | // initial samples count for overall samples ...
|
---|
[752] | 449 | numSamples += mInitialSamples;
|
---|
[542] | 450 |
|
---|
[574] | 451 | // rays can be passed or deleted
|
---|
[639] | 452 | disposeRays(initialSamples, outRays);
|
---|
[752] | 453 |
|
---|
| 454 | cout << "time needed for initial construction: "
|
---|
| 455 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 456 |
|
---|
| 457 | Debug << "time needed for initial construction: "
|
---|
| 458 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 459 |
|
---|
[1444] | 460 | // collect view cells and compute statistics
|
---|
| 461 | ResetViewCells();
|
---|
[752] | 462 |
|
---|
[1444] | 463 |
|
---|
| 464 | ///////////////////
|
---|
| 465 | //-- Initial hierarchy construction finished.
|
---|
[1381] | 466 | //-- We can do some stats and visualization
|
---|
| 467 |
|
---|
[1444] | 468 | if (0)
|
---|
[660] | 469 | {
|
---|
[1444] | 470 | //-- export initial view cell partition
|
---|
[1563] | 471 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
[1416] | 472 |
|
---|
[1414] | 473 | const string filename("viewcells.wrl");
|
---|
| 474 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
[712] | 475 |
|
---|
[660] | 476 | if (exporter)
|
---|
| 477 | {
|
---|
[1414] | 478 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
| 479 |
|
---|
[660] | 480 | if (mExportGeometry)
|
---|
[712] | 481 | {
|
---|
[660] | 482 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 483 | }
|
---|
[660] | 484 |
|
---|
[750] | 485 | exporter->SetWireframe();
|
---|
[1416] | 486 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[660] | 487 |
|
---|
| 488 | delete exporter;
|
---|
[712] | 489 | cout << "finished" << endl;
|
---|
[660] | 490 | }
|
---|
| 491 | }
|
---|
| 492 |
|
---|
[1381] | 493 |
|
---|
[1419] | 494 | //////////////////////
|
---|
[1381] | 495 | //-- Cast some more sampling after initial construction.
|
---|
| 496 | //-- The additional rays can be used to gain
|
---|
| 497 | //-- some more information before the bottom-up merge
|
---|
| 498 | //-- note: guided rays could be used for this task
|
---|
| 499 |
|
---|
[1414] | 500 | // time spent after construction of the initial partition
|
---|
[1381] | 501 | startTime = GetTime();
|
---|
[574] | 502 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[666] | 503 | // should we use directional samples?
|
---|
[1520] | 504 | bool dirSamples = (mSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 505 |
|
---|
| 506 | while (numSamples < n)
|
---|
| 507 | {
|
---|
[596] | 508 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 509 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 510 |
|
---|
[574] | 511 | VssRayContainer constructionSamples;
|
---|
| 512 |
|
---|
[694] | 513 | const int samplingType = mSamplingType;
|
---|
[1444] | 514 | //dirSamples ? Preprocessor::DIRECTION_BASED_DISTRIBUTION : Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[667] | 515 |
|
---|
[720] | 516 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 517 |
|
---|
[727] | 518 | // cast new samples
|
---|
[574] | 519 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 520 | samplingType,
|
---|
[574] | 521 | constructionSamples);
|
---|
| 522 |
|
---|
| 523 | cout << "finished" << endl;
|
---|
| 524 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 525 |
|
---|
[727] | 526 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 527 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 528 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 529 |
|
---|
[574] | 530 | cout << "finished" << endl;
|
---|
| 531 |
|
---|
[639] | 532 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 533 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 534 | }
|
---|
[752] | 535 |
|
---|
[1381] | 536 |
|
---|
[1563] | 537 | if (0)
|
---|
| 538 | {
|
---|
| 539 | ///////////////
|
---|
| 540 | //-- Get stats after the additional sampling step
|
---|
| 541 | //-- and before the bottom-up merge step
|
---|
[570] | 542 |
|
---|
[1563] | 543 | EvaluateViewCellsStats();
|
---|
| 544 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 545 | << mCurrentViewCellsStats << endl;
|
---|
| 546 |
|
---|
| 547 | mRenderer->RenderScene();
|
---|
| 548 | SimulationStatistics ss;
|
---|
| 549 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 550 |
|
---|
[1563] | 551 | Debug << ss << endl;
|
---|
| 552 | }
|
---|
[660] | 553 |
|
---|
[1416] | 554 | ////////////////////
|
---|
[1381] | 555 | //-- post processing of the initial construction
|
---|
| 556 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 557 | //-- We can additionally cast some post processing sample rays.
|
---|
| 558 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 559 |
|
---|
| 560 | VssRayContainer postProcessSamples;
|
---|
| 561 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 562 |
|
---|
| 563 | CastPassSamples(mPostProcessSamples, mSamplingType, postProcessSamples);
|
---|
| 564 |
|
---|
| 565 | cout << "finished" << endl;
|
---|
[574] | 566 | cout << "starting post processing and visualization" << endl;
|
---|
| 567 |
|
---|
[1444] | 568 | // store view cells with rays for post processing?
|
---|
[574] | 569 | const bool storeViewCells = true;
|
---|
[605] | 570 |
|
---|
| 571 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 572 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 573 |
|
---|
[1381] | 574 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 575 |
|
---|
[1414] | 576 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 577 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 578 |
|
---|
[1414] | 579 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 580 | disposeRays(postProcessSamples, outRays);
|
---|
| 581 |
|
---|
[801] | 582 |
|
---|
[1416] | 583 | ////////////////
|
---|
[1381] | 584 | //-- Evaluation of the resulting view cell partition.
|
---|
| 585 | //-- We cast a number of new samples and measure the render cost
|
---|
| 586 |
|
---|
[801] | 587 | if (mEvaluateViewCells)
|
---|
| 588 | {
|
---|
[1145] | 589 | EvalViewCellPartition();
|
---|
[801] | 590 | }
|
---|
[1705] | 591 |
|
---|
| 592 | // write view cells to disc
|
---|
| 593 | if (1 && mExportViewCells)
|
---|
| 594 | {
|
---|
| 595 | char filename[100];
|
---|
| 596 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 597 | ExportViewCells(filename, mExportPvs, mPreprocessor->mObjects);
|
---|
| 598 | }
|
---|
| 599 |
|
---|
[1416] | 600 | /////////////////
|
---|
[1381] | 601 | //-- Finally, we do some visualization
|
---|
| 602 |
|
---|
[666] | 603 | if (mShowVisualization)
|
---|
| 604 | {
|
---|
[1633] | 605 | ///////////////
|
---|
[1381] | 606 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[1633] | 607 |
|
---|
| 608 | VssRayContainer visSamples;
|
---|
| 609 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
| 610 | mSamplingType,
|
---|
| 611 | visSamples);
|
---|
[574] | 612 |
|
---|
[666] | 613 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[1633] | 614 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
[574] | 615 |
|
---|
[1444] | 616 | // various visualizations
|
---|
[1633] | 617 | Visualize(preprocessor->mObjects, visSamples);
|
---|
[574] | 618 |
|
---|
[1633] | 619 | disposeRays(visSamples, outRays);
|
---|
[666] | 620 | }
|
---|
[574] | 621 |
|
---|
[1444] | 622 | // recalculate view cells
|
---|
| 623 | EvaluateViewCellsStats();
|
---|
| 624 |
|
---|
[573] | 625 | return numSamples;
|
---|
[527] | 626 | }
|
---|
| 627 |
|
---|
[547] | 628 |
|
---|
[1418] | 629 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 630 | {
|
---|
| 631 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 632 | }
|
---|
| 633 |
|
---|
| 634 |
|
---|
[752] | 635 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 636 | const int nViewCells)
|
---|
[728] | 637 | {
|
---|
| 638 | std::ofstream outstream;
|
---|
| 639 | outstream.open(filename.c_str());
|
---|
| 640 |
|
---|
| 641 | ViewCellContainer viewCells;
|
---|
[735] | 642 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 643 |
|
---|
| 644 | float maxRenderCost, minRenderCost;
|
---|
[734] | 645 |
|
---|
| 646 | // sort by render cost
|
---|
| 647 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 648 |
|
---|
| 649 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 650 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 651 |
|
---|
[991] | 652 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 653 |
|
---|
[997] | 654 | int histoIntervals;
|
---|
[1004] | 655 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 656 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 657 |
|
---|
[997] | 658 | int histoMaxVal;
|
---|
[1004] | 659 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 660 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 661 |
|
---|
[997] | 662 |
|
---|
[728] | 663 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 664 | const float stepSize = range / (float)intervals;
|
---|
[728] | 665 |
|
---|
[735] | 666 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 667 |
|
---|
| 668 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 669 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 670 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 671 |
|
---|
[736] | 672 | int j = 0;
|
---|
[735] | 673 | int i = 0;
|
---|
| 674 |
|
---|
[734] | 675 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 676 |
|
---|
[744] | 677 | // count for integral
|
---|
| 678 | float volSum = 0;
|
---|
| 679 | int smallerCostSum = 0;
|
---|
[735] | 680 |
|
---|
[734] | 681 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 682 | while (1)
|
---|
| 683 | {
|
---|
[744] | 684 | // count for histogram value
|
---|
| 685 | float volDif = 0;
|
---|
| 686 | int smallerCostDif = 0;
|
---|
[736] | 687 |
|
---|
[734] | 688 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 689 | {
|
---|
[744] | 690 | volSum += viewCells[i]->GetVolume();
|
---|
| 691 | volDif += viewCells[i]->GetVolume();
|
---|
| 692 |
|
---|
[734] | 693 | ++ i;
|
---|
[744] | 694 | ++ smallerCostSum;
|
---|
| 695 | ++ smallerCostDif;
|
---|
[734] | 696 | }
|
---|
[736] | 697 |
|
---|
[744] | 698 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 699 | break;
|
---|
[736] | 700 |
|
---|
[744] | 701 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 702 | const float volRatioSum = volSum / totalVol;
|
---|
| 703 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 704 |
|
---|
[991] | 705 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 706 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 707 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 708 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 709 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 710 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 711 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 712 |
|
---|
| 713 | // increase current render cost
|
---|
[734] | 714 | currentRenderCost += stepSize;
|
---|
| 715 | }
|
---|
[735] | 716 |
|
---|
[734] | 717 | outstream.close();
|
---|
| 718 | }
|
---|
| 719 |
|
---|
[735] | 720 |
|
---|
[979] | 721 |
|
---|
| 722 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 723 | ObjectContainer *objects,
|
---|
[1676] | 724 | bool finalizeViewCells,
|
---|
[979] | 725 | BoundingBoxConverter *bconverter)
|
---|
| 726 |
|
---|
| 727 | {
|
---|
| 728 | ViewCellsParser parser;
|
---|
| 729 | ViewCellsManager *vm = NULL;
|
---|
| 730 |
|
---|
[1616] | 731 | const long startTime = GetTime();
|
---|
| 732 | bool success = parser.ParseViewCellsFile(filename, &vm, objects, bconverter);
|
---|
| 733 |
|
---|
[1715] | 734 | cout<<"viewcells parsed "<<endl<<flush;
|
---|
| 735 |
|
---|
[1616] | 736 | if (success)
|
---|
[979] | 737 | {
|
---|
[1621] | 738 | //vm->ResetViewCells();
|
---|
[1679] | 739 | //hack
|
---|
| 740 | vm->mViewCells.clear();
|
---|
| 741 | ViewCellContainer leaves;
|
---|
| 742 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
[979] | 743 |
|
---|
[1679] | 744 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[1621] | 745 |
|
---|
[1679] | 746 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 747 | {
|
---|
| 748 | vm->mViewCells.push_back(*it);
|
---|
| 749 | }
|
---|
[979] | 750 | vm->mViewCellsFinished = true;
|
---|
| 751 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 752 |
|
---|
| 753 | if (finalizeViewCells)
|
---|
| 754 | {
|
---|
[1444] | 755 | // create the meshes and compute volumes
|
---|
[979] | 756 | vm->FinalizeViewCells(true);
|
---|
[1616] | 757 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 758 | }
|
---|
| 759 |
|
---|
| 760 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 761 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 762 | }
|
---|
| 763 | else
|
---|
| 764 | {
|
---|
| 765 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 766 | DEL_PTR(vm);
|
---|
| 767 | }
|
---|
| 768 |
|
---|
| 769 | return vm;
|
---|
| 770 | }
|
---|
| 771 |
|
---|
| 772 |
|
---|
| 773 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 774 | const bool exportPvs,
|
---|
| 775 | const ObjectContainer &objects)
|
---|
| 776 | {
|
---|
[1002] | 777 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 778 | {
|
---|
[997] | 779 | return false;
|
---|
[1545] | 780 | }
|
---|
[997] | 781 |
|
---|
[979] | 782 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 783 |
|
---|
[1201] | 784 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 785 |
|
---|
| 786 | // for output we need unique ids for each view cell
|
---|
| 787 | CreateUniqueViewCellIds();
|
---|
| 788 |
|
---|
| 789 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 790 | stream << "<VisibilitySolution>" << endl;
|
---|
| 791 |
|
---|
[1262] | 792 | if (exportPvs)
|
---|
| 793 | {
|
---|
| 794 | //-- export bounding boxes
|
---|
| 795 | stream << "<BoundingBoxes>" << endl;
|
---|
[1614] | 796 | #if USE_KD_PVS
|
---|
| 797 | KdIntersectableMap::const_iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
[979] | 798 |
|
---|
[1614] | 799 | int id = 0;
|
---|
| 800 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 801 | {
|
---|
| 802 | Intersectable *obj = (*kit).second;
|
---|
| 803 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
| 804 |
|
---|
| 805 | obj->SetId(id);
|
---|
| 806 |
|
---|
| 807 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 808 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 809 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 810 | }
|
---|
| 811 | #else
|
---|
| 812 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 813 |
|
---|
[1262] | 814 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 815 | {
|
---|
[1563] | 816 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 817 |
|
---|
[1551] | 818 | ////////////
|
---|
[979] | 819 | //-- the bounding boxes
|
---|
[1563] | 820 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[979] | 821 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 822 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 823 | }
|
---|
[1614] | 824 | #endif
|
---|
[1262] | 825 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 826 | }
|
---|
[979] | 827 |
|
---|
[1264] | 828 |
|
---|
[1551] | 829 | /////////////
|
---|
[979] | 830 | //-- export the view cells and the pvs
|
---|
| 831 |
|
---|
| 832 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 833 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 834 |
|
---|
[979] | 835 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 836 |
|
---|
| 837 | stream << "</ViewCells>" << endl;
|
---|
| 838 |
|
---|
| 839 |
|
---|
[1551] | 840 | //////////
|
---|
[1262] | 841 | //-- export the view space hierarchy
|
---|
[979] | 842 |
|
---|
[1262] | 843 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 844 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 845 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 846 |
|
---|
[979] | 847 | mVspBspTree->Export(stream);
|
---|
[1286] | 848 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 849 |
|
---|
| 850 | stream << "</VisibilitySolution>" << endl;
|
---|
| 851 |
|
---|
| 852 | stream.close();
|
---|
| 853 | cout << "finished" << endl;
|
---|
| 854 |
|
---|
| 855 | return true;
|
---|
| 856 | }
|
---|
| 857 |
|
---|
| 858 |
|
---|
[735] | 859 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 860 | const int nViewCells)
|
---|
[734] | 861 | {
|
---|
| 862 | std::ofstream outstream;
|
---|
| 863 | outstream.open(filename.c_str());
|
---|
| 864 |
|
---|
| 865 | ViewCellContainer viewCells;
|
---|
[735] | 866 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 867 |
|
---|
[1709] | 868 | float maxPvs, maxVal, minVal;
|
---|
[734] | 869 |
|
---|
[997] | 870 | // sort by pvs size
|
---|
[735] | 871 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 872 |
|
---|
[1709] | 873 | maxPvs = mViewCellsTree->GetPvsCost(viewCells.back());
|
---|
[997] | 874 | minVal = 0;
|
---|
| 875 |
|
---|
[991] | 876 | // hack: normalize pvs size
|
---|
[997] | 877 | int histoMaxVal;
|
---|
[1004] | 878 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1709] | 879 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
[997] | 880 |
|
---|
[1121] | 881 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 882 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 883 |
|
---|
[997] | 884 | int histoIntervals;
|
---|
[1004] | 885 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 886 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 887 |
|
---|
[1709] | 888 | const float range = maxVal - minVal;
|
---|
| 889 | int stepSize = (int)(range / intervals);
|
---|
[735] | 890 |
|
---|
[997] | 891 | // set step size to avoid endless loop
|
---|
[735] | 892 | if (!stepSize) stepSize = 1;
|
---|
[979] | 893 |
|
---|
| 894 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 895 |
|
---|
[735] | 896 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 897 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 898 |
|
---|
[1709] | 899 | float currentPvs = minVal;
|
---|
[997] | 900 |
|
---|
[735] | 901 | int i = 0;
|
---|
| 902 | int j = 0;
|
---|
[744] | 903 | float volSum = 0;
|
---|
| 904 | int smallerSum = 0;
|
---|
| 905 |
|
---|
[735] | 906 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 907 |
|
---|
[997] | 908 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 909 | {
|
---|
[744] | 910 | float volDif = 0;
|
---|
| 911 | int smallerDif = 0;
|
---|
[736] | 912 |
|
---|
[997] | 913 | while ((i < (int)viewCells.size()) &&
|
---|
[1709] | 914 | (mViewCellsTree->GetPvsCost(viewCells[i]) < currentPvs))
|
---|
[735] | 915 | {
|
---|
[744] | 916 | volDif += viewCells[i]->GetVolume();
|
---|
| 917 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 918 |
|
---|
[735] | 919 | ++ i;
|
---|
[744] | 920 | ++ smallerDif;
|
---|
| 921 | ++ smallerSum;
|
---|
[735] | 922 | }
|
---|
[736] | 923 |
|
---|
[997] | 924 | if (0 && (i < (int)viewCells.size()))
|
---|
[1709] | 925 | Debug << "new pvs cost increase: " << mViewCellsTree->GetPvsCost(viewCells[i])
|
---|
[1121] | 926 | << " " << currentPvs << endl;
|
---|
[997] | 927 |
|
---|
[744] | 928 | const float volRatioDif = volDif / totalVol;
|
---|
| 929 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 930 |
|
---|
[997] | 931 | outstream << "#Pass\n" << j << endl;
|
---|
| 932 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 933 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 934 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 935 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 936 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 937 |
|
---|
| 938 | //-- increase current pvs size to define next interval
|
---|
| 939 | currentPvs += stepSize;
|
---|
[728] | 940 | }
|
---|
[991] | 941 |
|
---|
[735] | 942 | outstream.close();
|
---|
[728] | 943 | }
|
---|
| 944 |
|
---|
[735] | 945 |
|
---|
[1002] | 946 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 947 | {
|
---|
| 948 | return mExportPvs;
|
---|
| 949 | }
|
---|
| 950 |
|
---|
| 951 |
|
---|
[1259] | 952 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 953 | const Vector3 &hitPoint,
|
---|
| 954 | ViewCell *vc,
|
---|
| 955 | const float pdf,
|
---|
| 956 | float &contribution) const
|
---|
| 957 | {
|
---|
| 958 | if (!obj) return false;
|
---|
| 959 |
|
---|
| 960 | // potentially visible objects
|
---|
| 961 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 962 | }
|
---|
| 963 |
|
---|
| 964 |
|
---|
[1580] | 965 | void ViewCellsManager::ResetPvs()
|
---|
| 966 | {
|
---|
| 967 | if (ViewCellsTreeConstructed())
|
---|
| 968 | {
|
---|
| 969 | mViewCellsTree->ResetPvs();
|
---|
| 970 | }
|
---|
| 971 | else
|
---|
| 972 | {
|
---|
| 973 | cout << "view cells tree not constructed" << endl;
|
---|
| 974 | }
|
---|
| 975 | }
|
---|
| 976 |
|
---|
| 977 |
|
---|
[1679] | 978 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
| 979 | {
|
---|
| 980 | mViewCellsTree->ExportStats(fileName);
|
---|
| 981 | }
|
---|
| 982 |
|
---|
| 983 |
|
---|
[1145] | 984 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 985 | {
|
---|
| 986 | int samplesPerPass;
|
---|
| 987 | int numSamples;
|
---|
| 988 | int castSamples = 0;
|
---|
[1570] | 989 | char str[64];
|
---|
[1695] | 990 | int oldSamples = 0;
|
---|
[660] | 991 |
|
---|
[1695] | 992 | int samplesForStats;
|
---|
| 993 |
|
---|
[1004] | 994 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1695] | 995 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1004] | 996 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 997 |
|
---|
[664] | 998 | char statsPrefix[100];
|
---|
[1004] | 999 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 1000 |
|
---|
[664] | 1001 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 1002 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 1003 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 1004 |
|
---|
[666] | 1005 | // should directional sampling be used?
|
---|
[1603] | 1006 | bool dirSamples =
|
---|
| 1007 | (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 1008 |
|
---|
[801] | 1009 | cout << "reseting pvs ... ";
|
---|
| 1010 |
|
---|
[1145] | 1011 | const bool startFromZero = true;
|
---|
[801] | 1012 |
|
---|
[666] | 1013 | // reset pvs and start over from zero
|
---|
| 1014 | if (startFromZero)
|
---|
| 1015 | {
|
---|
| 1016 | mViewCellsTree->ResetPvs();
|
---|
| 1017 | }
|
---|
[1145] | 1018 | else // start from current sampless
|
---|
[666] | 1019 | {
|
---|
[1145] | 1020 | // statistics before casting more samples
|
---|
[666] | 1021 | cout << "compute new statistics ... ";
|
---|
[1570] | 1022 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1023 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 1024 |
|
---|
| 1025 | mViewCellsTree->ExportStats(fName);
|
---|
| 1026 | cout << "finished" << endl;
|
---|
| 1027 | }
|
---|
[1570] | 1028 |
|
---|
[744] | 1029 | cout << "finished" << endl;
|
---|
[1178] | 1030 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 1031 |
|
---|
[660] | 1032 | while (castSamples < numSamples)
|
---|
[1686] | 1033 | {
|
---|
| 1034 | ///////////////
|
---|
| 1035 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 1036 |
|
---|
[664] | 1037 | VssRayContainer evaluationSamples;
|
---|
[1686] | 1038 | const int samplingType = mEvaluationSamplingType;
|
---|
[663] | 1039 |
|
---|
[1004] | 1040 | long startTime = GetTime();
|
---|
| 1041 |
|
---|
| 1042 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1043 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1044 |
|
---|
[664] | 1045 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 1046 |
|
---|
| 1047 | castSamples += samplesPerPass;
|
---|
| 1048 |
|
---|
[1004] | 1049 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1695] | 1050 |
|
---|
| 1051 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1052 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1695] | 1053 |
|
---|
| 1054 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1055 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 1056 |
|
---|
| 1057 | startTime = GetTime();
|
---|
| 1058 |
|
---|
[664] | 1059 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 1060 |
|
---|
[1004] | 1061 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1062 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1063 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 1064 |
|
---|
[1695] | 1065 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
| 1066 | {
|
---|
| 1067 | oldSamples += samplesForStats;
|
---|
[1686] | 1068 |
|
---|
[1695] | 1069 | ///////////
|
---|
| 1070 | //-- output stats
|
---|
[1686] | 1071 |
|
---|
[1695] | 1072 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1073 | string fileName = string(statsPrefix) + string(str);
|
---|
[1686] | 1074 |
|
---|
[1695] | 1075 | ///////////////
|
---|
| 1076 | //-- propagate pvs or pvs size information
|
---|
[1586] | 1077 |
|
---|
[1695] | 1078 | startTime = GetTime();
|
---|
| 1079 | ObjectPvs pvs;
|
---|
[664] | 1080 |
|
---|
[1709] | 1081 | cout << "updating pvs for evaluation ... " << endl;
|
---|
[664] | 1082 |
|
---|
[1695] | 1083 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 1084 |
|
---|
| 1085 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1086 | cout << "finished updating the pvs in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1087 | Debug << "pvs evaluated in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1088 |
|
---|
| 1089 | startTime = GetTime();
|
---|
| 1090 | cout << "compute new statistics ... " << endl;
|
---|
| 1091 |
|
---|
| 1092 | ExportStats(fileName);
|
---|
| 1093 |
|
---|
| 1094 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1095 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1096 | Debug << "statistis computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1097 | }
|
---|
| 1098 |
|
---|
[664] | 1099 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 1100 | }
|
---|
[728] | 1101 |
|
---|
[997] | 1102 |
|
---|
[1570] | 1103 | ////////////
|
---|
[997] | 1104 | //-- histogram
|
---|
| 1105 |
|
---|
[1695] | 1106 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[735] | 1107 | bool useHisto;
|
---|
[997] | 1108 | int histoStepSize;
|
---|
[693] | 1109 |
|
---|
[1004] | 1110 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 1111 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 1112 |
|
---|
[735] | 1113 | if (useHisto)
|
---|
[734] | 1114 | {
|
---|
[735] | 1115 | // evaluate view cells in a histogram
|
---|
| 1116 | char s[64];
|
---|
| 1117 |
|
---|
[997] | 1118 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1119 | {
|
---|
[997] | 1120 | string filename;
|
---|
[744] | 1121 |
|
---|
[997] | 1122 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1123 | #if 0
|
---|
[744] | 1124 | //-- evaluate histogram for render cost
|
---|
| 1125 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1126 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1127 |
|
---|
| 1128 | EvalViewCellHistogram(filename, pass);
|
---|
| 1129 |
|
---|
[997] | 1130 | #endif
|
---|
[744] | 1131 | //////////////////////////////////////////
|
---|
[752] | 1132 | //-- evaluate histogram for pvs size
|
---|
[744] | 1133 |
|
---|
| 1134 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1135 |
|
---|
| 1136 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1137 | filename = string(statsPrefix) + string(s);
|
---|
| 1138 |
|
---|
| 1139 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1140 | }
|
---|
[734] | 1141 | }
|
---|
[660] | 1142 | }
|
---|
| 1143 |
|
---|
[704] | 1144 |
|
---|
| 1145 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1146 | {
|
---|
[704] | 1147 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1148 | }
|
---|
[660] | 1149 |
|
---|
[703] | 1150 |
|
---|
[1145] | 1151 | /// Returns index of the best view cells of the neighborhood
|
---|
[1707] | 1152 | static int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
[704] | 1153 | {
|
---|
[705] | 1154 | int bestViewCellIdx = 0;
|
---|
[703] | 1155 |
|
---|
[704] | 1156 | float mergeCost = Limits::Infinity;
|
---|
| 1157 | int i = 0;
|
---|
[703] | 1158 |
|
---|
[734] | 1159 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1160 |
|
---|
[734] | 1161 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1162 | {
|
---|
[734] | 1163 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1164 |
|
---|
| 1165 | if (mc < mergeCost)
|
---|
[704] | 1166 | {
|
---|
| 1167 | mergeCost = mc;
|
---|
| 1168 | bestViewCellIdx = i;
|
---|
[703] | 1169 | }
|
---|
[704] | 1170 | }
|
---|
[703] | 1171 |
|
---|
[704] | 1172 | return bestViewCellIdx;
|
---|
| 1173 | }
|
---|
[703] | 1174 |
|
---|
| 1175 |
|
---|
[728] | 1176 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1177 | {
|
---|
| 1178 | mMaxFilterSize = size;
|
---|
| 1179 | }
|
---|
| 1180 |
|
---|
| 1181 |
|
---|
[1703] | 1182 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) //const
|
---|
[728] | 1183 | {
|
---|
[1703] | 1184 | switch (sRenderCostEvaluationType)
|
---|
[728] | 1185 | {
|
---|
| 1186 | case PER_OBJECT:
|
---|
[752] | 1187 | return 1.0f;
|
---|
[728] | 1188 |
|
---|
| 1189 | case PER_TRIANGLE:
|
---|
[1703] | 1190 | {
|
---|
[1701] | 1191 | return (float)obj->NumberOfFaces();
|
---|
[728] | 1192 | }
|
---|
| 1193 | default:
|
---|
[752] | 1194 | cout << "default" << endl;
|
---|
| 1195 | return 1.0f;
|
---|
[728] | 1196 | }
|
---|
| 1197 |
|
---|
| 1198 | // should not come here
|
---|
[752] | 1199 | return 0.0f;
|
---|
[728] | 1200 | }
|
---|
| 1201 |
|
---|
| 1202 |
|
---|
[704] | 1203 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1204 | const ViewCellContainer &viewCells)
|
---|
| 1205 | {
|
---|
| 1206 | ViewCell *root = currentViewCell;
|
---|
| 1207 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1208 |
|
---|
[704] | 1209 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1210 |
|
---|
[704] | 1211 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1212 |
|
---|
| 1213 | /////////////////
|
---|
[704] | 1214 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1215 |
|
---|
[704] | 1216 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1217 | {
|
---|
[704] | 1218 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1219 |
|
---|
[704] | 1220 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1221 |
|
---|
[704] | 1222 | // remove from vector
|
---|
| 1223 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1224 | neighborhood.pop_back();
|
---|
[705] | 1225 |
|
---|
[704] | 1226 | if (!bestViewCell || !root)
|
---|
[1545] | 1227 | cout << "warning!!" << endl;
|
---|
[705] | 1228 |
|
---|
[704] | 1229 | // create new root of the hierarchy
|
---|
| 1230 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1231 | }
|
---|
| 1232 |
|
---|
[704] | 1233 | return root;
|
---|
[703] | 1234 | }
|
---|
| 1235 |
|
---|
[704] | 1236 |
|
---|
[713] | 1237 | struct SortableViewCellEntry {
|
---|
| 1238 |
|
---|
[1174] | 1239 | SortableViewCellEntry() {}
|
---|
| 1240 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1241 |
|
---|
[1174] | 1242 | float mValue;
|
---|
| 1243 | ViewCell *mViewCell;
|
---|
| 1244 |
|
---|
| 1245 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1246 | return a.mValue < b.mValue;
|
---|
| 1247 | }
|
---|
[713] | 1248 | };
|
---|
| 1249 |
|
---|
[1174] | 1250 |
|
---|
| 1251 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1252 | const ViewCellContainer &viewCells)
|
---|
[713] | 1253 | {
|
---|
| 1254 |
|
---|
| 1255 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1256 | int i, j;
|
---|
| 1257 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1258 | if (viewCells[i] != currentViewCell)
|
---|
| 1259 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1260 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1261 | viewCells[i]);
|
---|
| 1262 | }
|
---|
| 1263 | neighborhood.resize(j);
|
---|
| 1264 |
|
---|
| 1265 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1266 |
|
---|
| 1267 | ViewCell *root = currentViewCell;
|
---|
| 1268 |
|
---|
| 1269 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1270 |
|
---|
| 1271 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1272 | //-- use priority queue to merge leaf pairs
|
---|
| 1273 |
|
---|
| 1274 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1275 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1276 | {
|
---|
[713] | 1277 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1278 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1279 | // create new root of the hierarchy
|
---|
| 1280 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1281 | // set negative cost so that this view cell gets deleted
|
---|
| 1282 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1283 | }
|
---|
[713] | 1284 |
|
---|
| 1285 | return root;
|
---|
| 1286 | }
|
---|
| 1287 |
|
---|
| 1288 | void
|
---|
| 1289 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1290 | ) const
|
---|
| 1291 | {
|
---|
[1586] | 1292 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1293 | {
|
---|
| 1294 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1295 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1296 |
|
---|
| 1297 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1298 | DeleteLocalMergeTree(*it);
|
---|
| 1299 |
|
---|
| 1300 | vci->mChildren.clear();
|
---|
| 1301 |
|
---|
| 1302 | delete vci;
|
---|
[713] | 1303 | }
|
---|
| 1304 | }
|
---|
| 1305 |
|
---|
[1021] | 1306 |
|
---|
[564] | 1307 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1308 | int minPvsSize,
|
---|
[562] | 1309 | int maxPvsSize) const
|
---|
[547] | 1310 | {
|
---|
[569] | 1311 |
|
---|
[1707] | 1312 | if ((vc->GetPvs().EvalPvsCost() > maxPvsSize) ||
|
---|
| 1313 | (vc->GetPvs().EvalPvsCost() < minPvsSize))
|
---|
[564] | 1314 | {
|
---|
[710] | 1315 | return false;
|
---|
[561] | 1316 | }
|
---|
[570] | 1317 |
|
---|
[710] | 1318 | return true;
|
---|
[547] | 1319 | }
|
---|
| 1320 |
|
---|
| 1321 |
|
---|
[710] | 1322 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1323 | ViewCellContainer &viewCells) const
|
---|
| 1324 | {
|
---|
| 1325 | return 0;
|
---|
| 1326 | };
|
---|
| 1327 |
|
---|
[1021] | 1328 |
|
---|
[697] | 1329 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1330 | const float width) const
|
---|
| 1331 | {
|
---|
[746] | 1332 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1333 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1334 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1335 |
|
---|
| 1336 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1337 | }
|
---|
| 1338 |
|
---|
| 1339 |
|
---|
[904] | 1340 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1341 | PrVs &prvs,
|
---|
| 1342 | const float filterWidth)
|
---|
[697] | 1343 | {
|
---|
[1594] | 1344 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1345 |
|
---|
[1594] | 1346 | if (mMaxFilterSize < 1) {
|
---|
| 1347 | prvs.mViewCell = currentViewCell;
|
---|
| 1348 | return;
|
---|
| 1349 | }
|
---|
| 1350 |
|
---|
| 1351 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1352 |
|
---|
| 1353 | if (currentViewCell)
|
---|
[1545] | 1354 | {
|
---|
[1594] | 1355 | ViewCellContainer viewCells;
|
---|
| 1356 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1357 |
|
---|
| 1358 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1359 | prvs.mViewCell = root;
|
---|
| 1360 |
|
---|
[1545] | 1361 | }
|
---|
[1594] | 1362 | else
|
---|
[1545] | 1363 | {
|
---|
[1594] | 1364 | prvs.mViewCell = NULL;
|
---|
| 1365 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1366 | }
|
---|
[697] | 1367 | }
|
---|
| 1368 |
|
---|
| 1369 |
|
---|
[581] | 1370 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1371 | {
|
---|
[1002] | 1372 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1373 | }
|
---|
| 1374 |
|
---|
| 1375 |
|
---|
[564] | 1376 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1377 | int minPvs,
|
---|
[562] | 1378 | int maxPvs) const
|
---|
| 1379 | {
|
---|
| 1380 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1381 | }
|
---|
| 1382 |
|
---|
[577] | 1383 |
|
---|
[569] | 1384 | void
|
---|
| 1385 | ViewCellsManager::SetValidity(
|
---|
[570] | 1386 | int minPvsSize,
|
---|
[569] | 1387 | int maxPvsSize) const
|
---|
| 1388 | {
|
---|
[991] | 1389 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1390 |
|
---|
[991] | 1391 |
|
---|
| 1392 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1393 | {
|
---|
| 1394 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1395 | }
|
---|
[569] | 1396 | }
|
---|
[562] | 1397 |
|
---|
[569] | 1398 | void
|
---|
| 1399 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1400 | const float minValid,
|
---|
| 1401 | const float maxValid
|
---|
| 1402 | )
|
---|
| 1403 | {
|
---|
[997] | 1404 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1405 |
|
---|
[1151] | 1406 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1407 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1408 |
|
---|
[1151] | 1409 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1410 | {
|
---|
| 1411 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1412 | }
|
---|
[569] | 1413 | }
|
---|
| 1414 |
|
---|
[1148] | 1415 |
|
---|
[991] | 1416 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1417 | {
|
---|
[991] | 1418 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1419 | int valid = 0;
|
---|
| 1420 |
|
---|
| 1421 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1422 | {
|
---|
| 1423 | if ((*it)->GetValid())
|
---|
| 1424 | ++ valid;
|
---|
| 1425 | }
|
---|
| 1426 |
|
---|
| 1427 | return valid;
|
---|
[569] | 1428 | }
|
---|
| 1429 |
|
---|
[577] | 1430 |
|
---|
[1545] | 1431 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1432 | const bool extrudeBaseTriangles)
|
---|
[440] | 1433 | {
|
---|
[1545] | 1434 | /// we use predefined view cells from now on
|
---|
| 1435 | mUsePredefinedViewCells = true;
|
---|
[440] | 1436 | X3dParser parser;
|
---|
[1545] | 1437 |
|
---|
| 1438 | if (extrudeBaseTriangles)
|
---|
| 1439 | {
|
---|
| 1440 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1441 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1442 |
|
---|
| 1443 | if (!success)
|
---|
| 1444 | return false;
|
---|
[1545] | 1445 | }
|
---|
| 1446 | else
|
---|
| 1447 | {
|
---|
| 1448 | // hack: use standard mesh loading
|
---|
| 1449 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1450 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1451 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1452 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1453 |
|
---|
| 1454 | if (!success)
|
---|
[1545] | 1455 | {
|
---|
[1563] | 1456 | DEL_PTR(root);
|
---|
| 1457 | return false;
|
---|
| 1458 | }
|
---|
| 1459 |
|
---|
| 1460 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1461 |
|
---|
| 1462 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1463 | {
|
---|
| 1464 | Mesh *mesh;
|
---|
| 1465 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1466 | {
|
---|
[1563] | 1467 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1468 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1469 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1470 | }
|
---|
[1563] | 1471 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1472 | {
|
---|
| 1473 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1474 | mesh = mit->GetMesh();
|
---|
| 1475 | }
|
---|
| 1476 | mesh->ComputeBoundingBox();
|
---|
| 1477 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1478 | }
|
---|
[1563] | 1479 |
|
---|
[1545] | 1480 | DEL_PTR(root);
|
---|
| 1481 | }
|
---|
[503] | 1482 |
|
---|
[1563] | 1483 | // set view space box to bounding box of the view cells
|
---|
| 1484 | AxisAlignedBox3 bbox;
|
---|
| 1485 | bbox.Initialize();
|
---|
| 1486 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1487 |
|
---|
| 1488 | for (; it != it_end; ++ it)
|
---|
[1545] | 1489 | {
|
---|
[1563] | 1490 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1491 | }
|
---|
[503] | 1492 |
|
---|
[1563] | 1493 | SetViewSpaceBox(bbox);
|
---|
| 1494 | cout << "view space box: " << bbox << endl;
|
---|
| 1495 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1496 |
|
---|
| 1497 | return true;
|
---|
[440] | 1498 | }
|
---|
| 1499 |
|
---|
[485] | 1500 |
|
---|
[487] | 1501 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1502 | {
|
---|
[542] | 1503 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1504 | return true;
|
---|
| 1505 | }
|
---|
| 1506 |
|
---|
| 1507 |
|
---|
[557] | 1508 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1509 | {
|
---|
[610] | 1510 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1511 | }
|
---|
| 1512 |
|
---|
| 1513 |
|
---|
[490] | 1514 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1515 | {
|
---|
[1444] | 1516 | if (!ViewCellsConstructed())
|
---|
| 1517 | {
|
---|
| 1518 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1519 | }
|
---|
| 1520 | else
|
---|
| 1521 | {
|
---|
| 1522 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1523 | return false;
|
---|
[837] | 1524 |
|
---|
[1444] | 1525 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1526 |
|
---|
| 1527 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1528 | return false;
|
---|
| 1529 | }
|
---|
| 1530 |
|
---|
| 1531 | return true;
|
---|
[490] | 1532 | }
|
---|
| 1533 |
|
---|
[501] | 1534 |
|
---|
[1444] | 1535 | float ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1536 | const bool addRays,
|
---|
| 1537 | const bool storeViewCells)
|
---|
[440] | 1538 | {
|
---|
[1444] | 1539 | // view cells not yet constructed
|
---|
| 1540 | if (!ViewCellsConstructed())
|
---|
| 1541 | return 0.0f;
|
---|
| 1542 |
|
---|
| 1543 | float sum = 0.0f;
|
---|
| 1544 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1545 |
|
---|
| 1546 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1547 | {
|
---|
| 1548 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1549 | }
|
---|
[503] | 1550 |
|
---|
[1444] | 1551 | return sum;
|
---|
[440] | 1552 | }
|
---|
| 1553 |
|
---|
[485] | 1554 |
|
---|
[479] | 1555 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1556 | {
|
---|
[660] | 1557 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1558 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1559 |
|
---|
| 1560 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1561 | {
|
---|
[660] | 1562 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1563 | }
|
---|
[479] | 1564 | }
|
---|
| 1565 |
|
---|
[485] | 1566 |
|
---|
[580] | 1567 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1568 | float &expectedRenderCost,
|
---|
[580] | 1569 | float &deviation,
|
---|
| 1570 | float &variance,
|
---|
[1709] | 1571 | float &totalCost,
|
---|
[580] | 1572 | float &avgRenderCost)
|
---|
[579] | 1573 | {
|
---|
[1444] | 1574 | ////////////
|
---|
| 1575 | //-- compute expected value
|
---|
[579] | 1576 |
|
---|
| 1577 | totalRenderCost = 0;
|
---|
[1709] | 1578 | totalCost = 0;
|
---|
[579] | 1579 |
|
---|
[1444] | 1580 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1581 |
|
---|
[579] | 1582 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1583 | {
|
---|
| 1584 | ViewCell *vc = *it;
|
---|
[1707] | 1585 | totalRenderCost += vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[1709] | 1586 | totalCost += (int)vc->GetPvs().EvalPvsCost();
|
---|
[579] | 1587 | }
|
---|
| 1588 |
|
---|
[580] | 1589 | // normalize with view space box
|
---|
| 1590 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1591 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[1709] | 1592 | avgRenderCost = totalCost / (float)mViewCells.size();
|
---|
[579] | 1593 |
|
---|
| 1594 |
|
---|
[1444] | 1595 | ///////////
|
---|
[580] | 1596 | //-- compute standard defiation
|
---|
[1444] | 1597 |
|
---|
[579] | 1598 | variance = 0;
|
---|
[580] | 1599 | deviation = 0;
|
---|
[579] | 1600 |
|
---|
| 1601 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1602 | {
|
---|
| 1603 | ViewCell *vc = *it;
|
---|
| 1604 |
|
---|
[1707] | 1605 | float renderCost = vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[580] | 1606 | float dev;
|
---|
[579] | 1607 |
|
---|
[580] | 1608 | if (1)
|
---|
[1707] | 1609 | dev = fabs(avgRenderCost - (float)vc->GetPvs().EvalPvsCost());
|
---|
[580] | 1610 | else
|
---|
| 1611 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1612 |
|
---|
[580] | 1613 | deviation += dev;
|
---|
| 1614 | variance += dev * dev;
|
---|
[579] | 1615 | }
|
---|
[580] | 1616 |
|
---|
[579] | 1617 | variance /= (float)mViewCells.size();
|
---|
[580] | 1618 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1619 | }
|
---|
| 1620 |
|
---|
| 1621 |
|
---|
[478] | 1622 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1623 | {
|
---|
| 1624 | return viewCell->GetArea();
|
---|
| 1625 | }
|
---|
| 1626 |
|
---|
| 1627 |
|
---|
| 1628 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1629 | {
|
---|
| 1630 | return viewCell->GetVolume();
|
---|
| 1631 | }
|
---|
| 1632 |
|
---|
[485] | 1633 |
|
---|
[503] | 1634 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1635 | const float height) const
|
---|
| 1636 | {
|
---|
| 1637 | // one mesh per view cell
|
---|
[1001] | 1638 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1639 |
|
---|
[1545] | 1640 | ////////////
|
---|
[440] | 1641 | //-- construct prism
|
---|
| 1642 |
|
---|
[503] | 1643 | // bottom
|
---|
[440] | 1644 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1645 | // top
|
---|
| 1646 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1647 | // sides
|
---|
| 1648 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1649 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1650 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1651 |
|
---|
[1545] | 1652 |
|
---|
| 1653 | /////////////
|
---|
| 1654 | //-- extrude new vertices for top of prism
|
---|
| 1655 |
|
---|
[1586] | 1656 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1657 | Triangle3 topTri;
|
---|
[440] | 1658 |
|
---|
| 1659 | // add base vertices and calculate top vertices
|
---|
| 1660 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1661 | {
|
---|
[440] | 1662 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1663 | }
|
---|
[503] | 1664 |
|
---|
| 1665 | // add top vertices
|
---|
[440] | 1666 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1667 | {
|
---|
[440] | 1668 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1669 | }
|
---|
[503] | 1670 |
|
---|
[1545] | 1671 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1672 | mesh->ComputeBoundingBox();
|
---|
| 1673 |
|
---|
[440] | 1674 | return GenerateViewCell(mesh);
|
---|
| 1675 | }
|
---|
| 1676 |
|
---|
[485] | 1677 |
|
---|
[551] | 1678 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1679 | {
|
---|
| 1680 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1681 |
|
---|
| 1682 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1683 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1684 | {
|
---|
| 1685 | Finalize(*it, createMesh);
|
---|
| 1686 | }
|
---|
[555] | 1687 |
|
---|
[1584] | 1688 | mViewCellsTree->AssignRandomColors();
|
---|
| 1689 |
|
---|
[555] | 1690 | mTotalAreaValid = false;
|
---|
[551] | 1691 | }
|
---|
| 1692 |
|
---|
| 1693 |
|
---|
| 1694 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1695 | {
|
---|
| 1696 | // implemented in subclasses
|
---|
| 1697 | }
|
---|
| 1698 |
|
---|
[1001] | 1699 |
|
---|
[1168] | 1700 | /** fast way of merging 2 view cells.
|
---|
| 1701 | */
|
---|
[582] | 1702 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1703 | {
|
---|
[580] | 1704 | // generate parent view cell
|
---|
[752] | 1705 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1706 |
|
---|
[752] | 1707 | vc->GetPvs().Clear();
|
---|
[1740] | 1708 | ObjectPvs::Merge(vc->GetPvs(), left->GetPvs(), right->GetPvs());
|
---|
[752] | 1709 |
|
---|
[710] | 1710 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1711 | vc->mChildren.push_back(left);
|
---|
| 1712 | vc->mChildren.push_back(right);
|
---|
| 1713 |
|
---|
[752] | 1714 | // update pvs size
|
---|
[1707] | 1715 | UpdateScalarPvsSize(vc, vc->GetPvs().EvalPvsCost(), vc->GetPvs().GetSize());
|
---|
[752] | 1716 |
|
---|
[440] | 1717 | return vc;
|
---|
| 1718 | }
|
---|
| 1719 |
|
---|
[485] | 1720 |
|
---|
[582] | 1721 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1722 | {
|
---|
[752] | 1723 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1724 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1725 |
|
---|
| 1726 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1727 | {
|
---|
[1740] | 1728 | vc->GetPvs().MergeInPlace((*it)->GetPvs());
|
---|
| 1729 |
|
---|
[710] | 1730 | vc->mChildren.push_back(*it);
|
---|
[582] | 1731 | }
|
---|
| 1732 |
|
---|
| 1733 | return vc;
|
---|
| 1734 | }
|
---|
| 1735 |
|
---|
| 1736 |
|
---|
[480] | 1737 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1738 | {
|
---|
| 1739 | mRenderer = renderer;
|
---|
| 1740 | }
|
---|
[441] | 1741 |
|
---|
[485] | 1742 |
|
---|
[580] | 1743 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1744 | {
|
---|
[580] | 1745 | return mViewCellsTree;
|
---|
[440] | 1746 | }
|
---|
| 1747 |
|
---|
| 1748 |
|
---|
| 1749 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1750 | {
|
---|
[444] | 1751 | mVisualizationSamples = visSamples;
|
---|
[440] | 1752 | }
|
---|
| 1753 |
|
---|
[485] | 1754 |
|
---|
[440] | 1755 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1756 | {
|
---|
| 1757 | mConstructionSamples = constructionSamples;
|
---|
| 1758 | }
|
---|
| 1759 |
|
---|
[485] | 1760 |
|
---|
[574] | 1761 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1762 | {
|
---|
| 1763 | mInitialSamples = initialSamples;
|
---|
| 1764 | }
|
---|
| 1765 |
|
---|
| 1766 |
|
---|
[440] | 1767 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1768 | {
|
---|
| 1769 | mPostProcessSamples = postProcessSamples;
|
---|
| 1770 | }
|
---|
| 1771 |
|
---|
[485] | 1772 |
|
---|
[440] | 1773 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1774 | {
|
---|
| 1775 | return mVisualizationSamples;
|
---|
| 1776 | }
|
---|
| 1777 |
|
---|
[485] | 1778 |
|
---|
[440] | 1779 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1780 | {
|
---|
| 1781 | return mConstructionSamples;
|
---|
| 1782 | }
|
---|
| 1783 |
|
---|
[485] | 1784 |
|
---|
[440] | 1785 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1786 | {
|
---|
| 1787 | return mPostProcessSamples;
|
---|
| 1788 | }
|
---|
| 1789 |
|
---|
[485] | 1790 |
|
---|
[719] | 1791 | void ViewCellsManager::UpdatePvs()
|
---|
| 1792 | {
|
---|
[1737] | 1793 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
| 1794 | return;
|
---|
| 1795 |
|
---|
| 1796 | mViewCellPvsIsUpdated = true;
|
---|
| 1797 |
|
---|
| 1798 | ViewCellContainer leaves;
|
---|
| 1799 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1800 |
|
---|
| 1801 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1802 |
|
---|
| 1803 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[719] | 1804 | {
|
---|
[1737] | 1805 | mViewCellsTree->PropagatePvs(*it);
|
---|
[719] | 1806 | }
|
---|
| 1807 | }
|
---|
| 1808 |
|
---|
| 1809 |
|
---|
[485] | 1810 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1811 | {
|
---|
[1737] | 1812 | // update pvs of view cells tree if necessary
|
---|
| 1813 | UpdatePvs();
|
---|
| 1814 |
|
---|
| 1815 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1816 |
|
---|
| 1817 | stat.viewcells = 0;
|
---|
| 1818 | stat.minPvs = 100000000;
|
---|
| 1819 | stat.maxPvs = 0;
|
---|
| 1820 | stat.avgPvs = 0.0f;
|
---|
| 1821 | stat.avgFilteredPvs = 0.0f;
|
---|
| 1822 | stat.avgFilterContribution = 0.0f;
|
---|
| 1823 |
|
---|
| 1824 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1825 | {
|
---|
[1737] | 1826 | ViewCell *viewcell = *it;
|
---|
| 1827 |
|
---|
| 1828 | const float pvsCost = mViewCellsTree->GetPvsCost(viewcell);
|
---|
| 1829 |
|
---|
| 1830 | if (pvsCost < stat.minPvs)
|
---|
| 1831 | stat.minPvs = pvsCost;
|
---|
| 1832 | if (pvsCost > stat.maxPvs)
|
---|
| 1833 | stat.maxPvs = pvsCost;
|
---|
| 1834 |
|
---|
| 1835 | stat.avgPvs += pvsCost;
|
---|
[1121] | 1836 |
|
---|
[1737] | 1837 | if (0) {
|
---|
| 1838 | ObjectPvs filteredPvs = viewcell->GetPvs();
|
---|
| 1839 | ApplyFilter2(viewcell, false, 1.0f, filteredPvs);
|
---|
| 1840 | float filteredCost = filteredPvs.EvalPvsCost();
|
---|
| 1841 | stat.avgFilteredPvs += filteredCost;
|
---|
| 1842 | stat.avgFilterContribution += filteredCost - pvsCost;
|
---|
| 1843 | }
|
---|
| 1844 |
|
---|
| 1845 | ++ stat.viewcells;
|
---|
[719] | 1846 | }
|
---|
[1737] | 1847 |
|
---|
| 1848 | if (stat.viewcells) {
|
---|
| 1849 | stat.avgPvs/=stat.viewcells;
|
---|
| 1850 | stat.avgFilteredPvs/=stat.viewcells;
|
---|
| 1851 | stat.avgFilterContribution/=stat.viewcells;
|
---|
| 1852 | }
|
---|
[467] | 1853 | }
|
---|
| 1854 |
|
---|
[485] | 1855 |
|
---|
[480] | 1856 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1857 | {
|
---|
| 1858 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1859 | PvsStatistics pvsStat;
|
---|
| 1860 | GetPvsStatistics(pvsStat);
|
---|
| 1861 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
[1737] | 1862 | s<<"#AVG_FILTERED_PVS\n"<<pvsStat.avgFilteredPvs<<endl;
|
---|
| 1863 | s<<"#AVG_FILTER_CONTRIBUTION\n"<<pvsStat.avgFilterContribution<<endl;
|
---|
[467] | 1864 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1865 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1866 | }
|
---|
| 1867 |
|
---|
[485] | 1868 |
|
---|
[532] | 1869 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1870 | {
|
---|
| 1871 | return 0;
|
---|
| 1872 | }
|
---|
| 1873 |
|
---|
[547] | 1874 |
|
---|
[468] | 1875 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1876 | {
|
---|
| 1877 | return mViewCells;
|
---|
| 1878 | }
|
---|
| 1879 |
|
---|
[485] | 1880 |
|
---|
[487] | 1881 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1882 | {
|
---|
[542] | 1883 | mViewSpaceBox = box;
|
---|
[1074] | 1884 |
|
---|
[1027] | 1885 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1886 | CreateClipPlane();
|
---|
[1027] | 1887 | // the total area of the view space has changed
|
---|
[577] | 1888 | mTotalAreaValid = false;
|
---|
[487] | 1889 | }
|
---|
| 1890 |
|
---|
| 1891 |
|
---|
[660] | 1892 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1893 | {
|
---|
| 1894 | int axis = 0;
|
---|
[667] | 1895 | float pos;
|
---|
[1418] | 1896 | bool orientation;
|
---|
| 1897 | Vector3 absPos;
|
---|
[591] | 1898 |
|
---|
[1004] | 1899 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1900 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1901 |
|
---|
[1418] | 1902 | if (axis < 0)
|
---|
| 1903 | {
|
---|
| 1904 | axis = -axis;
|
---|
| 1905 | orientation = false;
|
---|
| 1906 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 1907 | }
|
---|
| 1908 | else
|
---|
| 1909 | {
|
---|
| 1910 | orientation = true;
|
---|
| 1911 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1912 | }
|
---|
| 1913 |
|
---|
[1416] | 1914 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 1915 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 1916 | }
|
---|
| 1917 |
|
---|
| 1918 |
|
---|
[519] | 1919 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1920 | {
|
---|
[542] | 1921 | return mViewSpaceBox;
|
---|
[519] | 1922 | }
|
---|
| 1923 |
|
---|
| 1924 |
|
---|
[480] | 1925 | void ViewCellsManager::ResetViewCells()
|
---|
| 1926 | {
|
---|
[720] | 1927 | // recollect view cells
|
---|
[480] | 1928 | mViewCells.clear();
|
---|
| 1929 | CollectViewCells();
|
---|
[590] | 1930 |
|
---|
[720] | 1931 | // stats are computed once more
|
---|
[480] | 1932 | EvaluateViewCellsStats();
|
---|
[590] | 1933 |
|
---|
[520] | 1934 | // has to be recomputed
|
---|
[480] | 1935 | mTotalAreaValid = false;
|
---|
| 1936 | }
|
---|
| 1937 |
|
---|
[485] | 1938 |
|
---|
[547] | 1939 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1940 | {
|
---|
| 1941 | return mMaxPvsSize;
|
---|
| 1942 | }
|
---|
| 1943 |
|
---|
[590] | 1944 |
|
---|
[563] | 1945 | void
|
---|
| 1946 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1947 | {
|
---|
| 1948 | if (!ViewCellsConstructed())
|
---|
| 1949 | return;
|
---|
[564] | 1950 |
|
---|
[563] | 1951 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1952 |
|
---|
[563] | 1953 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1954 | AddSampleContributions(*(*it));
|
---|
| 1955 | }
|
---|
| 1956 | }
|
---|
[547] | 1957 |
|
---|
[581] | 1958 |
|
---|
[562] | 1959 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1960 | {
|
---|
| 1961 | return mMinPvsSize;
|
---|
| 1962 | }
|
---|
| 1963 |
|
---|
| 1964 |
|
---|
| 1965 |
|
---|
[561] | 1966 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1967 | {
|
---|
| 1968 | return mMaxPvsRatio;
|
---|
| 1969 | }
|
---|
| 1970 |
|
---|
| 1971 |
|
---|
[563] | 1972 | void
|
---|
| 1973 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1974 | {
|
---|
[563] | 1975 | // assumes viewcells have been stored...
|
---|
| 1976 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1977 | ViewCellContainer::const_iterator it;
|
---|
[1594] | 1978 |
|
---|
| 1979 | if (!ray.mTerminationObject)
|
---|
| 1980 | return;
|
---|
| 1981 |
|
---|
| 1982 | #if USE_KD_PVS
|
---|
| 1983 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 1984 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 1985 | Intersectable *obj =
|
---|
| 1986 | GetPreprocessor()->mKdTree->
|
---|
| 1987 | GetOrCreateKdIntersectable(node);
|
---|
| 1988 | #else
|
---|
| 1989 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 1990 | #endif
|
---|
| 1991 |
|
---|
[563] | 1992 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1993 | ViewCell *viewcell = *it;
|
---|
[569] | 1994 | if (viewcell->GetValid()) {
|
---|
| 1995 | // if ray not outside of view space
|
---|
[1594] | 1996 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[569] | 1997 | }
|
---|
[563] | 1998 | }
|
---|
| 1999 | }
|
---|
[503] | 2000 |
|
---|
[574] | 2001 |
|
---|
[1159] | 2002 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 2003 | const bool addRays,
|
---|
| 2004 | const bool storeViewCells)
|
---|
[563] | 2005 | {
|
---|
[570] | 2006 | ViewCellContainer viewcells;
|
---|
[564] | 2007 |
|
---|
[570] | 2008 | ray.mPvsContribution = 0;
|
---|
| 2009 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 2010 |
|
---|
[570] | 2011 | static Ray hray;
|
---|
[564] | 2012 | hray.Init(ray);
|
---|
| 2013 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 2014 | //Ray hray(ray);
|
---|
| 2015 |
|
---|
| 2016 | float tmin = 0, tmax = 1.0;
|
---|
| 2017 |
|
---|
| 2018 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 2019 | return 0;
|
---|
[564] | 2020 |
|
---|
| 2021 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 2022 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 2023 |
|
---|
[1291] | 2024 | ViewCell::NewMail();
|
---|
| 2025 |
|
---|
[1006] | 2026 | // traverse the view space subdivision
|
---|
[564] | 2027 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 2028 |
|
---|
[574] | 2029 | if (storeViewCells)
|
---|
[1155] | 2030 | { // copy viewcells memory efficiently
|
---|
[570] | 2031 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 2032 | ray.mViewCells = viewcells;
|
---|
| 2033 | }
|
---|
[564] | 2034 |
|
---|
[1594] | 2035 | #if USE_KD_PVS
|
---|
| 2036 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 2037 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 2038 | Intersectable *obj =
|
---|
| 2039 | GetPreprocessor()->mKdTree->
|
---|
| 2040 | GetOrCreateKdIntersectable(node);
|
---|
| 2041 | #else
|
---|
| 2042 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 2043 | #endif
|
---|
| 2044 |
|
---|
| 2045 |
|
---|
[570] | 2046 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[1594] | 2047 |
|
---|
[664] | 2048 | for (; it != viewcells.end(); ++ it)
|
---|
| 2049 | {
|
---|
| 2050 | ViewCell *viewcell = *it;
|
---|
[1522] | 2051 |
|
---|
[1528] | 2052 | if (viewcell->GetValid()) // tests if view cell is in valid view space
|
---|
[664] | 2053 | {
|
---|
| 2054 | float contribution;
|
---|
[1291] | 2055 |
|
---|
| 2056 | if (ray.mTerminationObject)
|
---|
[1649] | 2057 | {
|
---|
| 2058 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 2059 | ray.mPdf,
|
---|
| 2060 | contribution))
|
---|
[1582] | 2061 | {
|
---|
[1649] | 2062 | ++ ray.mPvsContribution;
|
---|
| 2063 | ray.mRelativePvsContribution += contribution;
|
---|
[1582] | 2064 | }
|
---|
[664] | 2065 | }
|
---|
[1291] | 2066 |
|
---|
| 2067 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1582] | 2068 |
|
---|
[840] | 2069 | // for directional sampling it is important to count only contributions
|
---|
[718] | 2070 | // made in one direction!!!
|
---|
| 2071 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1582] | 2072 |
|
---|
[666] | 2073 | if (ray.mOriginObject &&
|
---|
| 2074 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 2075 | ray.mPdf,
|
---|
| 2076 | contribution))
|
---|
[1582] | 2077 | {
|
---|
[666] | 2078 | ++ ray.mPvsContribution;
|
---|
[1582] | 2079 | ray.mRelativePvsContribution += contribution;
|
---|
| 2080 | }
|
---|
[718] | 2081 | #endif
|
---|
[664] | 2082 | }
|
---|
[569] | 2083 | }
|
---|
[564] | 2084 |
|
---|
[1528] | 2085 | // if true, the sampled entities are stored in the pvs
|
---|
[664] | 2086 | if (addRays)
|
---|
| 2087 | {
|
---|
| 2088 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 2089 | {
|
---|
| 2090 | ViewCell *viewcell = *it;
|
---|
| 2091 |
|
---|
[706] | 2092 | if (viewcell->GetValid())
|
---|
[664] | 2093 | {
|
---|
[1486] | 2094 | // if view point is valid, add new object to the pvs
|
---|
[1155] | 2095 | if (ray.mTerminationObject)
|
---|
[1545] | 2096 | {
|
---|
[1594] | 2097 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[1159] | 2098 | }
|
---|
[1166] | 2099 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 2100 | if (ray.mOriginObject)
|
---|
[1159] | 2101 | {
|
---|
[666] | 2102 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 2103 | }
|
---|
[718] | 2104 | #endif
|
---|
[664] | 2105 | }
|
---|
| 2106 | }
|
---|
[563] | 2107 | }
|
---|
[570] | 2108 |
|
---|
[1715] | 2109 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 2110 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[468] | 2111 | }
|
---|
| 2112 |
|
---|
| 2113 |
|
---|
[469] | 2114 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 2115 | const int maxSize,
|
---|
[503] | 2116 | VssRayContainer &usedRays,
|
---|
[485] | 2117 | VssRayContainer *savedRays) const
|
---|
[469] | 2118 | {
|
---|
[485] | 2119 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 2120 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 2121 |
|
---|
[485] | 2122 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 2123 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 2124 | {
|
---|
[473] | 2125 | if (Random(1.0f) < prop)
|
---|
[485] | 2126 | usedRays.push_back(*it);
|
---|
| 2127 | else if (savedRays)
|
---|
| 2128 | savedRays->push_back(*it);
|
---|
[469] | 2129 | }
|
---|
| 2130 | }
|
---|
| 2131 |
|
---|
[477] | 2132 |
|
---|
[728] | 2133 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 2134 | {
|
---|
[1709] | 2135 | return (float)mViewCellsTree->GetPvsCost(viewCell);
|
---|
[605] | 2136 | }
|
---|
| 2137 |
|
---|
| 2138 |
|
---|
[477] | 2139 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 2140 | {
|
---|
| 2141 | // if already computed
|
---|
| 2142 | if (mTotalAreaValid)
|
---|
[728] | 2143 | {
|
---|
[470] | 2144 | return mTotalArea;
|
---|
[728] | 2145 | }
|
---|
[470] | 2146 |
|
---|
| 2147 | mTotalArea = 0;
|
---|
| 2148 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2149 |
|
---|
| 2150 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 2151 | {
|
---|
| 2152 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2153 | mTotalArea += GetArea(*it);
|
---|
[480] | 2154 | }
|
---|
| 2155 |
|
---|
[470] | 2156 | mTotalAreaValid = true;
|
---|
| 2157 |
|
---|
| 2158 | return mTotalArea;
|
---|
| 2159 | }
|
---|
| 2160 |
|
---|
[482] | 2161 |
|
---|
[475] | 2162 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2163 | {
|
---|
[660] | 2164 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2165 | }
|
---|
| 2166 |
|
---|
[477] | 2167 |
|
---|
[508] | 2168 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2169 | {
|
---|
[651] | 2170 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2171 | {
|
---|
[651] | 2172 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2173 | }
|
---|
| 2174 | else // no view cells tree, handle view cells "myself"
|
---|
| 2175 | {
|
---|
[1551] | 2176 | int i = 0;
|
---|
| 2177 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2178 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2179 | {
|
---|
[1557] | 2180 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2181 | {
|
---|
[1551] | 2182 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2183 | }
|
---|
[1284] | 2184 | }
|
---|
| 2185 | }
|
---|
[508] | 2186 | }
|
---|
| 2187 |
|
---|
[1416] | 2188 |
|
---|
| 2189 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2190 | const AxisAlignedBox3 *sceneBox,
|
---|
[1571] | 2191 | const AxisAlignedPlane *clipPlane,
|
---|
| 2192 | const bool colorCode
|
---|
[1416] | 2193 | ) const
|
---|
[508] | 2194 | {
|
---|
[482] | 2195 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2196 |
|
---|
| 2197 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2198 | {
|
---|
[574] | 2199 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2200 | {
|
---|
[1571] | 2201 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2202 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2203 | }
|
---|
[482] | 2204 | }
|
---|
| 2205 | }
|
---|
| 2206 |
|
---|
| 2207 |
|
---|
[517] | 2208 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2209 | {
|
---|
| 2210 | // convert to meshes
|
---|
| 2211 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2212 |
|
---|
| 2213 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2214 | {
|
---|
[517] | 2215 | if (!(*it)->GetMesh())
|
---|
[1001] | 2216 | {
|
---|
[517] | 2217 | CreateMesh(*it);
|
---|
[1001] | 2218 | }
|
---|
[503] | 2219 | }
|
---|
| 2220 | }
|
---|
| 2221 |
|
---|
[508] | 2222 |
|
---|
[944] | 2223 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2224 | const bool exportPvs,
|
---|
| 2225 | const ObjectContainer &objects)
|
---|
[564] | 2226 | {
|
---|
[508] | 2227 | return false;
|
---|
| 2228 | }
|
---|
| 2229 |
|
---|
| 2230 |
|
---|
[610] | 2231 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2232 | {
|
---|
[610] | 2233 | mNumActiveViewCells = n;
|
---|
| 2234 | mViewCells.clear();
|
---|
[1545] | 2235 | // implemented in subclasses
|
---|
[610] | 2236 | CollectViewCells();
|
---|
| 2237 | }
|
---|
[508] | 2238 |
|
---|
| 2239 |
|
---|
[1707] | 2240 | void ViewCellsManager::SetViewCellActive(ViewCell *vc) const
|
---|
| 2241 | {
|
---|
| 2242 | ViewCellContainer leaves;
|
---|
| 2243 | // sets the pointers to the currently active view cells
|
---|
| 2244 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2245 |
|
---|
| 2246 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2247 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2248 | {
|
---|
| 2249 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(vc);
|
---|
| 2250 | }
|
---|
| 2251 | }
|
---|
| 2252 |
|
---|
| 2253 |
|
---|
[660] | 2254 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2255 | {
|
---|
[1707] | 2256 | // collect leaf view cells and set the pointers to
|
---|
| 2257 | // the currently active view cells
|
---|
[660] | 2258 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2259 |
|
---|
[660] | 2260 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2261 | {
|
---|
[1707] | 2262 | SetViewCellActive(*it);
|
---|
[660] | 2263 | }
|
---|
| 2264 | }
|
---|
[508] | 2265 |
|
---|
[840] | 2266 |
|
---|
| 2267 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2268 | {
|
---|
| 2269 | return mMaxFilterSize;
|
---|
| 2270 | }
|
---|
| 2271 |
|
---|
[1001] | 2272 |
|
---|
[840] | 2273 | static const bool USE_ASCII = true;
|
---|
| 2274 |
|
---|
[1001] | 2275 |
|
---|
[840] | 2276 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2277 | const ObjectContainer &objects) const
|
---|
| 2278 | {
|
---|
| 2279 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2280 |
|
---|
| 2281 | if (USE_ASCII)
|
---|
| 2282 | {
|
---|
| 2283 | ofstream boxesOut(filename.c_str());
|
---|
| 2284 | if (!boxesOut.is_open())
|
---|
| 2285 | return false;
|
---|
| 2286 |
|
---|
| 2287 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2288 | {
|
---|
| 2289 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2290 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2291 |
|
---|
| 2292 | boxesOut << mi->GetId() << " "
|
---|
| 2293 | << box.Min().x << " "
|
---|
| 2294 | << box.Min().y << " "
|
---|
| 2295 | << box.Min().z << " "
|
---|
| 2296 | << box.Max().x << " "
|
---|
| 2297 | << box.Max().y << " "
|
---|
| 2298 | << box.Max().z << endl;
|
---|
| 2299 | }
|
---|
| 2300 |
|
---|
| 2301 | boxesOut.close();
|
---|
| 2302 | }
|
---|
| 2303 | else
|
---|
| 2304 | {
|
---|
| 2305 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2306 |
|
---|
| 2307 | if (!boxesOut.is_open())
|
---|
| 2308 | return false;
|
---|
| 2309 |
|
---|
| 2310 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2311 | {
|
---|
| 2312 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2313 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2314 | Vector3 bmin = box.Min();
|
---|
| 2315 | Vector3 bmax = box.Max();
|
---|
[850] | 2316 | int id = mi->GetId();
|
---|
[840] | 2317 |
|
---|
[850] | 2318 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2319 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2320 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2321 | }
|
---|
| 2322 |
|
---|
| 2323 | boxesOut.close();
|
---|
| 2324 | }
|
---|
| 2325 |
|
---|
| 2326 | return true;
|
---|
| 2327 | }
|
---|
| 2328 |
|
---|
| 2329 |
|
---|
[850] | 2330 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2331 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2332 | {
|
---|
[850] | 2333 | Vector3 bmin, bmax;
|
---|
| 2334 | int id;
|
---|
[840] | 2335 |
|
---|
[850] | 2336 | if (USE_ASCII)
|
---|
[840] | 2337 | {
|
---|
[850] | 2338 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2339 |
|
---|
[850] | 2340 | if (!boxesIn.is_open())
|
---|
[840] | 2341 | {
|
---|
[850] | 2342 | cout << "failed to open file " << filename << endl;
|
---|
| 2343 | return false;
|
---|
[840] | 2344 | }
|
---|
[850] | 2345 |
|
---|
| 2346 | string buf;
|
---|
| 2347 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2348 | {
|
---|
[850] | 2349 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2350 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2351 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2352 |
|
---|
| 2353 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2354 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2355 | // HACK: set bounding box to new box
|
---|
| 2356 | //mi->mBox = box;
|
---|
| 2357 |
|
---|
| 2358 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2359 | }
|
---|
| 2360 |
|
---|
[850] | 2361 | boxesIn.close();
|
---|
[840] | 2362 | }
|
---|
[850] | 2363 | else
|
---|
[840] | 2364 | {
|
---|
[850] | 2365 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2366 |
|
---|
[850] | 2367 | if (!boxesIn.is_open())
|
---|
| 2368 | return false;
|
---|
| 2369 |
|
---|
| 2370 | while (1)
|
---|
[840] | 2371 | {
|
---|
[850] | 2372 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2373 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2374 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2375 |
|
---|
| 2376 | if (boxesIn.eof())
|
---|
| 2377 | break;
|
---|
| 2378 |
|
---|
| 2379 |
|
---|
| 2380 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2381 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2382 |
|
---|
| 2383 | // HACK: set bounding box to new box
|
---|
| 2384 | //mi->mBox = box;
|
---|
| 2385 | //boxes.push_back(mi);
|
---|
| 2386 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2387 | }
|
---|
| 2388 |
|
---|
[850] | 2389 | boxesIn.close();
|
---|
[840] | 2390 | }
|
---|
| 2391 |
|
---|
| 2392 | return true;
|
---|
[850] | 2393 | }
|
---|
[840] | 2394 |
|
---|
[931] | 2395 |
|
---|
| 2396 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2397 | {
|
---|
| 2398 | return mFilterWidth;
|
---|
| 2399 | }
|
---|
| 2400 |
|
---|
| 2401 |
|
---|
| 2402 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2403 | {
|
---|
| 2404 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2405 | }
|
---|
| 2406 |
|
---|
| 2407 |
|
---|
[1168] | 2408 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
[1709] | 2409 | const float pvsCost,
|
---|
[1168] | 2410 | const int entriesInPvs) const
|
---|
[1002] | 2411 | {
|
---|
[1709] | 2412 | vc->mPvsCost = pvsCost;
|
---|
[1160] | 2413 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2414 |
|
---|
[1002] | 2415 | vc->mPvsSizeValid = true;
|
---|
| 2416 | }
|
---|
| 2417 |
|
---|
| 2418 |
|
---|
[1021] | 2419 | void
|
---|
| 2420 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2421 | KdTree *kdTree,
|
---|
| 2422 | const float viewSpaceFilterSize,
|
---|
| 2423 | const float spatialFilterSize,
|
---|
| 2424 | ObjectPvs &pvs
|
---|
| 2425 | )
|
---|
| 2426 | {
|
---|
| 2427 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2428 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2429 | // in the pvs
|
---|
| 2430 |
|
---|
| 2431 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2432 | // and compute the pvs union
|
---|
| 2433 |
|
---|
| 2434 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2435 | // Vector3 center = m->mBox.Center();
|
---|
[1679] | 2436 |
|
---|
| 2437 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2438 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2439 | if (!ViewCellsConstructed())
|
---|
| 2440 | return;
|
---|
| 2441 |
|
---|
[1679] | 2442 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
[1021] | 2443 |
|
---|
[1679] | 2444 | const bool usePrVS = false;
|
---|
[1021] | 2445 |
|
---|
[1679] | 2446 | if (!usePrVS) {
|
---|
| 2447 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2448 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2449 |
|
---|
[1679] | 2450 | ViewCellContainer viewCells;
|
---|
| 2451 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2452 |
|
---|
| 2453 | // cout<<"box="<<box<<endl;
|
---|
| 2454 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2455 |
|
---|
[1740] | 2456 | for (; it != it_end; ++ it)
|
---|
| 2457 | {
|
---|
| 2458 | ObjectPvs interPvs;
|
---|
[1679] | 2459 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
[1740] | 2460 | ObjectPvs::Merge(interPvs, pvs, (*it)->GetPvs());
|
---|
| 2461 |
|
---|
| 2462 | pvs = interPvs;
|
---|
[1679] | 2463 | }
|
---|
[1740] | 2464 | } else
|
---|
| 2465 | {
|
---|
[1679] | 2466 | PrVs prvs;
|
---|
| 2467 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2468 |
|
---|
| 2469 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2470 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2471 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2472 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2473 | }
|
---|
[1740] | 2474 | }
|
---|
| 2475 | else
|
---|
| 2476 | {
|
---|
[1679] | 2477 | pvs = viewCell->GetPvs();
|
---|
[1740] | 2478 | }
|
---|
[1679] | 2479 |
|
---|
| 2480 | if (spatialFilterSize >=0.0f)
|
---|
| 2481 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2482 |
|
---|
[1021] | 2483 | }
|
---|
| 2484 |
|
---|
| 2485 |
|
---|
| 2486 |
|
---|
| 2487 | void
|
---|
| 2488 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2489 | const float relViewSpaceFilterSize,
|
---|
| 2490 | const float relSpatialFilterSize
|
---|
| 2491 | )
|
---|
| 2492 | {
|
---|
| 2493 |
|
---|
| 2494 | if (!ViewCellsConstructed())
|
---|
| 2495 | return;
|
---|
| 2496 |
|
---|
[1679] | 2497 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1021] | 2498 |
|
---|
[1679] | 2499 | ObjectPvs *newPvs;
|
---|
| 2500 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
[1021] | 2501 |
|
---|
[1679] | 2502 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2503 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
[1715] | 2504 |
|
---|
[1679] | 2505 | int i;
|
---|
| 2506 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2507 | ApplyFilter(*it,
|
---|
| 2508 | kdTree,
|
---|
| 2509 | viewSpaceFilterSize,
|
---|
| 2510 | spatialFilterSize,
|
---|
| 2511 | newPvs[i]
|
---|
| 2512 | );
|
---|
[1679] | 2513 | }
|
---|
[1715] | 2514 |
|
---|
[1679] | 2515 | // now replace all pvss
|
---|
| 2516 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2517 |
|
---|
| 2518 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2519 | pvs.Clear();
|
---|
| 2520 | pvs = newPvs[i];
|
---|
| 2521 | newPvs[i].Clear();
|
---|
[1679] | 2522 | }
|
---|
[1021] | 2523 |
|
---|
[1679] | 2524 | delete [] newPvs;
|
---|
| 2525 | }
|
---|
[1021] | 2526 |
|
---|
[1679] | 2527 |
|
---|
[1021] | 2528 | void
|
---|
| 2529 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2530 | KdTree *kdTree,
|
---|
| 2531 | const float spatialFilterSize,
|
---|
| 2532 | ObjectPvs &pvs
|
---|
| 2533 | )
|
---|
| 2534 | {
|
---|
[1716] | 2535 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2536 | // extended boxes of visible objects
|
---|
| 2537 | Intersectable::NewMail();
|
---|
[1742] | 2538 |
|
---|
| 2539 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 2540 |
|
---|
| 2541 | while (pit.HasMoreEntries())
|
---|
| 2542 | {
|
---|
| 2543 | ObjectPvsEntry entry = pit.Next();
|
---|
[1716] | 2544 |
|
---|
[1742] | 2545 | Intersectable *object = entry.mObject;
|
---|
[1189] | 2546 | object->Mail();
|
---|
[1742] | 2547 | }
|
---|
[1021] | 2548 |
|
---|
| 2549 | ObjectPvs nPvs;
|
---|
[1189] | 2550 | int nPvsSize = 0;
|
---|
[1742] | 2551 |
|
---|
| 2552 | ObjectPvsIterator pit2 = pvs.GetIterator();
|
---|
[1021] | 2553 |
|
---|
[1742] | 2554 | while (pit2.HasMoreEntries())
|
---|
| 2555 | {
|
---|
| 2556 | // now go through the pvs again
|
---|
| 2557 | ObjectPvsEntry entry = pit2.Next();
|
---|
| 2558 | Intersectable *object = entry.mObject;
|
---|
[1021] | 2559 |
|
---|
[1742] | 2560 | // Vector3 center = object->GetBox().Center();
|
---|
| 2561 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2562 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2563 |
|
---|
| 2564 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2565 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2566 |
|
---|
| 2567 | ObjectContainer objects;
|
---|
| 2568 |
|
---|
| 2569 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2570 | kdTree->CollectObjects(box, objects);
|
---|
| 2571 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2572 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2573 | for (; noi != objects.end(); ++ noi)
|
---|
| 2574 | {
|
---|
| 2575 | Intersectable *o = *noi;
|
---|
| 2576 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2577 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2578 | nPvsSize ++;
|
---|
| 2579 | }
|
---|
[1021] | 2580 | }
|
---|
| 2581 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
[1740] | 2582 |
|
---|
| 2583 | pvs.MergeInPlace(nPvs);
|
---|
[1021] | 2584 | }
|
---|
| 2585 |
|
---|
| 2586 |
|
---|
[1715] | 2587 | void
|
---|
| 2588 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
[1737] | 2589 | const bool useViewSpaceFilter,
|
---|
[1715] | 2590 | const float filterSize,
|
---|
| 2591 | ObjectPvs &pvs
|
---|
| 2592 | )
|
---|
| 2593 | {
|
---|
[1737] | 2594 | AxisAlignedBox3 vbox = GetViewCellBox(viewCell);
|
---|
| 2595 | Vector3 center = vbox.Center();
|
---|
[1716] | 2596 | // first determine the average size of the filter
|
---|
[1715] | 2597 |
|
---|
[1743] | 2598 | pvs = viewCell->GetPvs();
|
---|
[1716] | 2599 | Intersectable::NewMail();
|
---|
[1743] | 2600 |
|
---|
[1742] | 2601 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 2602 |
|
---|
[1716] | 2603 | // first mark all object from this pvs
|
---|
[1742] | 2604 | while (pit.HasMoreEntries())
|
---|
| 2605 | {
|
---|
| 2606 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2607 |
|
---|
| 2608 | Intersectable *object = entry.mObject;
|
---|
| 2609 | object->Mail();
|
---|
[1716] | 2610 | }
|
---|
| 2611 |
|
---|
| 2612 | ObjectPvs nPvs;
|
---|
| 2613 | int pvsSize = 0;
|
---|
| 2614 | int nPvsSize = 0;
|
---|
[1742] | 2615 | float samples = (float)pvs.GetSamples();
|
---|
[1737] | 2616 | cout<<"Samples = "<<samples<<endl;
|
---|
| 2617 | // cout<<"Filter size = "<<filterSize<<endl;
|
---|
| 2618 | // cout<<"vbox = "<<vbox<<endl;
|
---|
| 2619 | // cout<<"center = "<<center<<endl;
|
---|
[1716] | 2620 |
|
---|
[1737] | 2621 |
|
---|
| 2622 | #define MIN_LOCAL_SAMPLES 5
|
---|
| 2623 |
|
---|
| 2624 | // compute the average filter radius
|
---|
| 2625 | float globalC = 2.0f*filterSize/sqrt(samples);
|
---|
| 2626 |
|
---|
| 2627 | float sumRadius = 0.0f;
|
---|
[1742] | 2628 |
|
---|
| 2629 | ObjectPvsIterator pit2 = pvs.GetIterator();
|
---|
| 2630 |
|
---|
| 2631 | // first mark all object from this pvs
|
---|
| 2632 | for (; pit2.HasMoreEntries(); pvsSize++) {
|
---|
| 2633 | ObjectPvsEntry entry = pit2.Next();
|
---|
| 2634 | Intersectable *object = entry.mObject;
|
---|
[1716] | 2635 | // compute filter size based on the distance and the numebr of samples
|
---|
[1737] | 2636 | AxisAlignedBox3 box = object->GetBox();
|
---|
[1716] | 2637 |
|
---|
[1737] | 2638 | float distance = Distance(center, box.Center());
|
---|
| 2639 | float globalRadius = distance*globalC;
|
---|
| 2640 |
|
---|
[1742] | 2641 | int objectSamples = (int)entry.mData.mSumPdf;
|
---|
[1737] | 2642 | float localRadius = MAX_FLOAT;
|
---|
| 2643 |
|
---|
| 2644 | if (objectSamples > MIN_LOCAL_SAMPLES)
|
---|
| 2645 | localRadius = 0.5f*Magnitude(box.Diagonal())/sqrt((float)objectSamples);
|
---|
| 2646 |
|
---|
[1716] | 2647 | // now compute the filter size
|
---|
[1737] | 2648 | float radius = Min(localRadius, globalRadius);
|
---|
| 2649 |
|
---|
| 2650 | sumRadius +=radius;
|
---|
| 2651 | }
|
---|
| 2652 |
|
---|
| 2653 | float avgRadius = sumRadius/pvsSize;
|
---|
| 2654 | float viewCellRadius = 0.5f*Magnitude(vbox.Diagonal());
|
---|
| 2655 | cout<<"radius ratio = "<<avgRadius/viewCellRadius<<endl;
|
---|
| 2656 |
|
---|
| 2657 | // now compute the filter box around the current viewCell
|
---|
| 2658 |
|
---|
| 2659 | if (useViewSpaceFilter) {
|
---|
| 2660 | // float radius = Max(viewCellRadius/100.0f, avgRadius - viewCellRadius);
|
---|
| 2661 | float radius = viewCellRadius/100.0f;
|
---|
| 2662 | vbox.Enlarge(radius);
|
---|
| 2663 | cout<<"vbox = "<<vbox<<endl;
|
---|
| 2664 | ViewCellContainer viewCells;
|
---|
| 2665 | ComputeBoxIntersections(vbox, viewCells);
|
---|
| 2666 |
|
---|
| 2667 | // cout<<"box="<<box<<endl;
|
---|
| 2668 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2669 |
|
---|
| 2670 | int i;
|
---|
| 2671 | for (i=0; it != it_end; ++ it, ++ i)
|
---|
| 2672 | if ((*it) != viewCell) {
|
---|
| 2673 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
[1740] | 2674 | pvs.MergeInPlace((*it)->GetPvs());
|
---|
[1737] | 2675 | }
|
---|
| 2676 |
|
---|
| 2677 | // update samples and globalC
|
---|
[1742] | 2678 | samples = (float)pvs.GetSamples();
|
---|
[1737] | 2679 | globalC = 2.0f*filterSize/sqrt(samples);
|
---|
| 2680 | cout<<"neighboring viewcells = "<<i-1<<endl;
|
---|
| 2681 | cout<<"Samples' = "<<samples<<endl;
|
---|
| 2682 | }
|
---|
| 2683 |
|
---|
[1742] | 2684 | pit = pvs.GetIterator();
|
---|
[1737] | 2685 |
|
---|
[1742] | 2686 | // first mark all object from this pvs
|
---|
| 2687 | while (pit.HasMoreEntries())
|
---|
| 2688 | {
|
---|
| 2689 | ObjectPvsEntry entry = pit.Next();
|
---|
[1737] | 2690 |
|
---|
[1742] | 2691 | Intersectable *object = entry.mObject;
|
---|
| 2692 | // compute filter size based on the distance and the numebr of samples
|
---|
| 2693 | AxisAlignedBox3 box = object->GetBox();
|
---|
[1737] | 2694 |
|
---|
[1742] | 2695 | float distance = Distance(center, box.Center());
|
---|
| 2696 | float globalRadius = distance*globalC;
|
---|
[1716] | 2697 |
|
---|
[1742] | 2698 | int objectSamples = (int)entry.mData.mSumPdf;
|
---|
| 2699 | float localRadius = MAX_FLOAT;
|
---|
| 2700 | if (objectSamples > MIN_LOCAL_SAMPLES)
|
---|
| 2701 | localRadius = filterSize*0.5f*Magnitude(box.Diagonal())/sqrt((float)objectSamples);
|
---|
| 2702 |
|
---|
| 2703 | // cout<<"lr="<<localRadius<<" gr="<<globalRadius<<endl;
|
---|
| 2704 |
|
---|
| 2705 | // now compute the filter size
|
---|
| 2706 | float radius = Min(localRadius, globalRadius);
|
---|
| 2707 |
|
---|
| 2708 | // cout<<"box = "<<box<<endl;
|
---|
| 2709 | // cout<<"distance = "<<distance<<endl;
|
---|
| 2710 | // cout<<"radiues = "<<radius<<endl;
|
---|
| 2711 |
|
---|
| 2712 | box.Enlarge(Vector3(radius));
|
---|
| 2713 |
|
---|
| 2714 | ObjectContainer objects;
|
---|
| 2715 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2716 | CollectObjects(box, objects);
|
---|
| 2717 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2718 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2719 | for (; noi != objects.end(); ++ noi) {
|
---|
[1743] | 2720 | Intersectable *o = *noi;
|
---|
| 2721 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2722 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2723 | nPvsSize ++;
|
---|
[1742] | 2724 | }
|
---|
[1716] | 2725 | }
|
---|
[1737] | 2726 | cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
[1740] | 2727 |
|
---|
| 2728 | pvs.MergeInPlace(nPvs);
|
---|
[1743] | 2729 |
|
---|
[1737] | 2730 | Intersectable::NewMail();
|
---|
[1715] | 2731 | }
|
---|
| 2732 |
|
---|
[1716] | 2733 |
|
---|
[1715] | 2734 |
|
---|
[1716] | 2735 |
|
---|
| 2736 |
|
---|
[1571] | 2737 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2738 | ViewCell *vc,
|
---|
| 2739 | bool colorCode) const
|
---|
[1021] | 2740 | {
|
---|
| 2741 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2742 |
|
---|
| 2743 | float importance = 0;
|
---|
| 2744 | static Material m;
|
---|
| 2745 |
|
---|
| 2746 | switch (mColorCode)
|
---|
| 2747 | {
|
---|
| 2748 | case 0: // Random
|
---|
| 2749 | {
|
---|
| 2750 | if (vcValid)
|
---|
| 2751 | {
|
---|
| 2752 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2753 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2754 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2755 | }
|
---|
| 2756 | else
|
---|
| 2757 | {
|
---|
| 2758 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2759 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2760 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2761 | }
|
---|
| 2762 |
|
---|
| 2763 | exporter->SetForcedMaterial(m);
|
---|
| 2764 | return;
|
---|
| 2765 | }
|
---|
| 2766 |
|
---|
| 2767 | case 1: // pvs
|
---|
| 2768 | {
|
---|
| 2769 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2770 | {
|
---|
| 2771 | importance =
|
---|
[1709] | 2772 | (float)mViewCellsTree->GetPvsCost(vc) /
|
---|
[1121] | 2773 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2774 | }
|
---|
[1021] | 2775 | }
|
---|
| 2776 | break;
|
---|
| 2777 | case 2: // merges
|
---|
| 2778 | {
|
---|
| 2779 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2780 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2781 | }
|
---|
| 2782 | break;
|
---|
| 2783 | #if 0
|
---|
| 2784 | case 3: // merge tree differene
|
---|
| 2785 | {
|
---|
| 2786 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2787 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2788 |
|
---|
| 2789 | }
|
---|
| 2790 | break;
|
---|
| 2791 | #endif
|
---|
| 2792 | default:
|
---|
| 2793 | break;
|
---|
| 2794 | }
|
---|
| 2795 |
|
---|
| 2796 | // special color code for invalid view cells
|
---|
| 2797 | m.mDiffuseColor.r = importance;
|
---|
| 2798 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2799 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2800 |
|
---|
| 2801 | //Debug << "importance: " << importance << endl;
|
---|
| 2802 | exporter->SetForcedMaterial(m);
|
---|
| 2803 | }
|
---|
| 2804 |
|
---|
| 2805 |
|
---|
[1022] | 2806 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2807 | vector<MergeCandidate> &candidates)
|
---|
| 2808 | {
|
---|
| 2809 | // implemented in subclasses
|
---|
| 2810 | }
|
---|
| 2811 |
|
---|
[1047] | 2812 |
|
---|
[1718] | 2813 | void ViewCellsManager::UpdatePvsForEvaluation()
|
---|
[1608] | 2814 | {
|
---|
[1718] | 2815 | ObjectPvs objPvs;
|
---|
| 2816 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
[1608] | 2817 | }
|
---|
| 2818 |
|
---|
[1168] | 2819 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2820 | {
|
---|
| 2821 | // terminate traversal
|
---|
| 2822 | if (root->IsLeaf())
|
---|
| 2823 | {
|
---|
[1709] | 2824 | //cout << "updating leaf" << endl;
|
---|
[1168] | 2825 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2826 | pvs = root->GetPvs();
|
---|
[1707] | 2827 | UpdateScalarPvsSize(root, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2828 | return;
|
---|
| 2829 | }
|
---|
[1709] | 2830 |
|
---|
| 2831 | //cout << "recursivly updating pvs" << endl;
|
---|
| 2832 |
|
---|
[1586] | 2833 | ////////////////
|
---|
| 2834 | //-- interior node => propagate pvs up the tree
|
---|
| 2835 |
|
---|
[1168] | 2836 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 2837 |
|
---|
| 2838 | // reset interior pvs
|
---|
[1168] | 2839 | interior->GetPvs().Clear();
|
---|
[1606] | 2840 | // reset recursive pvs
|
---|
[1168] | 2841 | pvs.Clear();
|
---|
[1695] | 2842 |
|
---|
| 2843 | // pvss of child nodes
|
---|
[1168] | 2844 | vector<ObjectPvs> pvsList;
|
---|
[1709] | 2845 | pvsList.resize((int)interior->mChildren.size());
|
---|
[1168] | 2846 |
|
---|
| 2847 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[1709] | 2848 |
|
---|
[1695] | 2849 | int i = 0;
|
---|
[1709] | 2850 |
|
---|
[1695] | 2851 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[1168] | 2852 | {
|
---|
[1586] | 2853 | //////////////////
|
---|
[1168] | 2854 | //-- recursivly compute child pvss
|
---|
[1695] | 2855 | UpdatePvsForEvaluation(*vit, pvsList[i]/*objPvs*/);
|
---|
[1168] | 2856 | }
|
---|
| 2857 |
|
---|
| 2858 | #if 1
|
---|
| 2859 | Intersectable::NewMail();
|
---|
| 2860 |
|
---|
| 2861 | //-- faster way of computing pvs:
|
---|
[1586] | 2862 | //-- construct merged pvs by adding
|
---|
| 2863 | //-- and only those of the next pvs which were not mailed.
|
---|
| 2864 | //-- note: sumpdf is not correct!!
|
---|
| 2865 |
|
---|
[1168] | 2866 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2867 |
|
---|
| 2868 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2869 | {
|
---|
[1742] | 2870 | ObjectPvsIterator pit = (*oit).GetIterator();
|
---|
| 2871 |
|
---|
| 2872 | // first mark all object from this pvs
|
---|
| 2873 | while (pit.HasMoreEntries())
|
---|
| 2874 | {
|
---|
| 2875 | ObjectPvsEntry entry = pit.Next();
|
---|
[1168] | 2876 |
|
---|
[1742] | 2877 | Intersectable *intersect = entry.mObject;
|
---|
| 2878 |
|
---|
[1168] | 2879 | if (!intersect->Mailed())
|
---|
| 2880 | {
|
---|
[1742] | 2881 | pvs.AddSample(intersect, entry.mData.mSumPdf);
|
---|
[1168] | 2882 | intersect->Mail();
|
---|
| 2883 | }
|
---|
| 2884 | }
|
---|
| 2885 | }
|
---|
| 2886 |
|
---|
| 2887 | // store pvs in this node
|
---|
| 2888 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2889 | {
|
---|
| 2890 | interior->SetPvs(pvs);
|
---|
| 2891 | }
|
---|
| 2892 |
|
---|
| 2893 | // set new pvs size
|
---|
[1707] | 2894 | UpdateScalarPvsSize(interior, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2895 |
|
---|
[1586] | 2896 | #else
|
---|
| 2897 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2898 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2899 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2900 | #endif
|
---|
| 2901 | }
|
---|
| 2902 |
|
---|
[1174] | 2903 |
|
---|
| 2904 |
|
---|
[1145] | 2905 | /*******************************************************************/
|
---|
| 2906 | /* BspViewCellsManager implementation */
|
---|
| 2907 | /*******************************************************************/
|
---|
[440] | 2908 |
|
---|
[482] | 2909 |
|
---|
[1264] | 2910 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 2911 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 2912 | {
|
---|
[1004] | 2913 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[1640] | 2914 |
|
---|
[587] | 2915 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 2916 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 2917 | }
|
---|
| 2918 |
|
---|
[462] | 2919 |
|
---|
[440] | 2920 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2921 | {
|
---|
| 2922 | return mBspTree->GetRoot() != NULL;
|
---|
| 2923 | }
|
---|
| 2924 |
|
---|
[480] | 2925 |
|
---|
[440] | 2926 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2927 | {
|
---|
| 2928 | return new BspViewCell(mesh);
|
---|
| 2929 | }
|
---|
| 2930 |
|
---|
[480] | 2931 |
|
---|
[574] | 2932 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2933 | const VssRayContainer &rays)
|
---|
[440] | 2934 | {
|
---|
[1545] | 2935 | // if view cells were already constructed, we can finish
|
---|
[440] | 2936 | if (ViewCellsConstructed())
|
---|
| 2937 | return 0;
|
---|
| 2938 |
|
---|
| 2939 | int sampleContributions = 0;
|
---|
[503] | 2940 |
|
---|
[469] | 2941 | // construct view cells using the collected samples
|
---|
| 2942 | RayContainer constructionRays;
|
---|
| 2943 | VssRayContainer savedRays;
|
---|
[440] | 2944 |
|
---|
[1563] | 2945 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 2946 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 2947 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2948 |
|
---|
[473] | 2949 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 2950 |
|
---|
[469] | 2951 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2952 | {
|
---|
[473] | 2953 | if (Random(1.0f) < prop)
|
---|
[469] | 2954 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2955 | else
|
---|
| 2956 | savedRays.push_back(*it);
|
---|
| 2957 | }
|
---|
[440] | 2958 |
|
---|
[1545] | 2959 | if (!mUsePredefinedViewCells)
|
---|
[503] | 2960 | {
|
---|
| 2961 | // no view cells loaded
|
---|
[587] | 2962 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2963 | // collect final view cells
|
---|
| 2964 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2965 | }
|
---|
[469] | 2966 | else
|
---|
[1551] | 2967 | {
|
---|
[1545] | 2968 | // use predefined view cells geometry =>
|
---|
| 2969 | // contruct bsp hierarchy over them
|
---|
[469] | 2970 | mBspTree->Construct(mViewCells);
|
---|
| 2971 | }
|
---|
| 2972 |
|
---|
| 2973 | // destroy rays created only for construction
|
---|
| 2974 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2975 |
|
---|
[440] | 2976 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 2977 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2978 |
|
---|
[469] | 2979 | // recast rest of the rays
|
---|
[649] | 2980 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2981 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2982 |
|
---|
[719] | 2983 | // real meshes are contructed at this stage
|
---|
| 2984 | if (0)
|
---|
| 2985 | {
|
---|
| 2986 | cout << "finalizing view cells ... ";
|
---|
| 2987 | FinalizeViewCells(true);
|
---|
| 2988 | cout << "finished" << endl;
|
---|
| 2989 | }
|
---|
| 2990 |
|
---|
[440] | 2991 | return sampleContributions;
|
---|
| 2992 | }
|
---|
| 2993 |
|
---|
[503] | 2994 |
|
---|
[480] | 2995 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 2996 | {
|
---|
[587] | 2997 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 2998 | { // view cells tree constructed
|
---|
[587] | 2999 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 3000 | }
|
---|
| 3001 | else
|
---|
[1545] | 3002 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 3003 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 3004 | }
|
---|
[480] | 3005 | }
|
---|
[468] | 3006 |
|
---|
[503] | 3007 |
|
---|
[471] | 3008 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 3009 | {
|
---|
[591] | 3010 | if (1)
|
---|
| 3011 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 3012 | else
|
---|
[1545] | 3013 | // compute view cell area as subsititute for probability
|
---|
[591] | 3014 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 3015 | }
|
---|
[440] | 3016 |
|
---|
[503] | 3017 |
|
---|
[440] | 3018 |
|
---|
[468] | 3019 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3020 | const Vector3 &termination,
|
---|
| 3021 | ViewCellContainer &viewcells)
|
---|
[440] | 3022 | {
|
---|
[468] | 3023 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 3024 | }
|
---|
| 3025 |
|
---|
| 3026 |
|
---|
[1551] | 3027 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 3028 | {
|
---|
| 3029 | // save color code
|
---|
| 3030 | const int savedColorCode = mColorCode;
|
---|
| 3031 |
|
---|
| 3032 | // export merged view cells
|
---|
| 3033 | mColorCode = 0; // use random colors
|
---|
| 3034 |
|
---|
| 3035 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
| 3036 |
|
---|
| 3037 | cout << "exporting view cells after merge ... ";
|
---|
| 3038 |
|
---|
| 3039 | if (exporter)
|
---|
| 3040 | {
|
---|
| 3041 | if (mExportGeometry)
|
---|
| 3042 | {
|
---|
| 3043 | exporter->ExportGeometry(objects);
|
---|
| 3044 | }
|
---|
| 3045 |
|
---|
| 3046 | exporter->SetFilled();
|
---|
| 3047 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 3048 |
|
---|
| 3049 | delete exporter;
|
---|
| 3050 | }
|
---|
| 3051 | cout << "finished" << endl;
|
---|
| 3052 |
|
---|
| 3053 | // export merged view cells using pvs color coding
|
---|
| 3054 | mColorCode = 1;
|
---|
| 3055 |
|
---|
| 3056 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 3057 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3058 |
|
---|
| 3059 | if (exporter)
|
---|
| 3060 | {
|
---|
| 3061 | if (mExportGeometry)
|
---|
| 3062 | {
|
---|
| 3063 | exporter->ExportGeometry(objects);
|
---|
| 3064 | }
|
---|
| 3065 |
|
---|
| 3066 | exporter->SetFilled();
|
---|
| 3067 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 3068 |
|
---|
| 3069 | delete exporter;
|
---|
| 3070 | }
|
---|
| 3071 | cout << "finished" << endl;
|
---|
| 3072 |
|
---|
| 3073 | mColorCode = savedColorCode;
|
---|
| 3074 | }
|
---|
| 3075 |
|
---|
| 3076 |
|
---|
[503] | 3077 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 3078 | const VssRayContainer &rays)
|
---|
| 3079 | {
|
---|
[469] | 3080 | if (!ViewCellsConstructed())
|
---|
[441] | 3081 | {
|
---|
| 3082 | Debug << "view cells not constructed" << endl;
|
---|
| 3083 | return 0;
|
---|
| 3084 | }
|
---|
[590] | 3085 |
|
---|
[1414] | 3086 | // view cells already finished before post processing step,
|
---|
| 3087 | // i.e., because they were loaded from disc
|
---|
[590] | 3088 | if (mViewCellsFinished)
|
---|
| 3089 | {
|
---|
| 3090 | FinalizeViewCells(true);
|
---|
| 3091 | EvaluateViewCellsStats();
|
---|
| 3092 |
|
---|
| 3093 | return 0;
|
---|
| 3094 | }
|
---|
| 3095 |
|
---|
[1444] | 3096 | //////////////////
|
---|
[1414] | 3097 | //-- merge leaves of the view cell hierarchy
|
---|
| 3098 |
|
---|
[649] | 3099 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 3100 | long startTime = GetTime();
|
---|
| 3101 |
|
---|
| 3102 | VssRayContainer postProcessRays;
|
---|
| 3103 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3104 |
|
---|
[592] | 3105 | if (mMergeViewCells)
|
---|
[591] | 3106 | {
|
---|
[660] | 3107 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 3108 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 3109 | }
|
---|
| 3110 | else
|
---|
| 3111 | {
|
---|
[660] | 3112 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 3113 | ViewCell *root;
|
---|
| 3114 | // the spatial merge tree is difficult to build for
|
---|
| 3115 | // this type of construction, as view cells cover several
|
---|
| 3116 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 3117 | if (mUsePredefinedViewCells)
|
---|
| 3118 | {
|
---|
| 3119 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 3120 | }
|
---|
| 3121 | else
|
---|
| 3122 | {
|
---|
| 3123 | // create spatial merge hierarchy
|
---|
| 3124 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 3125 | }
|
---|
| 3126 |
|
---|
[752] | 3127 | mViewCellsTree->SetRoot(root);
|
---|
| 3128 |
|
---|
[1415] | 3129 | // recompute pvs in the whole hierarchy
|
---|
[752] | 3130 | ObjectPvs pvs;
|
---|
| 3131 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 3132 | }
|
---|
[440] | 3133 |
|
---|
[1415] | 3134 | cout << "finished" << endl;
|
---|
| 3135 | cout << "merged view cells in "
|
---|
| 3136 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 3137 |
|
---|
| 3138 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3139 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 3140 |
|
---|
| 3141 |
|
---|
[1418] | 3142 | ////////////////////////
|
---|
[1444] | 3143 | //-- visualization and statistics after merge
|
---|
[1415] | 3144 |
|
---|
[666] | 3145 | if (1)
|
---|
| 3146 | {
|
---|
| 3147 | char mstats[100];
|
---|
[1004] | 3148 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3149 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3150 | }
|
---|
[650] | 3151 |
|
---|
[1551] | 3152 | // recompute view cells and stats
|
---|
| 3153 | ResetViewCells();
|
---|
[660] | 3154 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 3155 |
|
---|
[1551] | 3156 | // visualization of the view cells
|
---|
[1545] | 3157 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 3158 |
|
---|
[719] | 3159 | // compute final meshes and volume / area
|
---|
| 3160 | if (1) FinalizeViewCells(true);
|
---|
[840] | 3161 |
|
---|
[650] | 3162 | return 0;
|
---|
[440] | 3163 | }
|
---|
| 3164 |
|
---|
[477] | 3165 |
|
---|
| 3166 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 3167 | {
|
---|
| 3168 | }
|
---|
| 3169 |
|
---|
| 3170 |
|
---|
[440] | 3171 | int BspViewCellsManager::GetType() const
|
---|
| 3172 | {
|
---|
| 3173 | return BSP;
|
---|
| 3174 | }
|
---|
| 3175 |
|
---|
| 3176 |
|
---|
| 3177 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3178 | const VssRayContainer &sampleRays)
|
---|
[440] | 3179 | {
|
---|
[469] | 3180 | if (!ViewCellsConstructed())
|
---|
| 3181 | return;
|
---|
[574] | 3182 |
|
---|
[1563] | 3183 | const int savedColorCode = mColorCode;
|
---|
[1551] | 3184 |
|
---|
[600] | 3185 | if (1) // export final view cells
|
---|
[440] | 3186 | {
|
---|
[1020] | 3187 | mColorCode = 1; // hack color code
|
---|
[1415] | 3188 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3189 |
|
---|
| 3190 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 3191 |
|
---|
[469] | 3192 | if (exporter)
|
---|
[440] | 3193 | {
|
---|
[600] | 3194 | if (mExportGeometry)
|
---|
[1416] | 3195 | {
|
---|
[600] | 3196 | exporter->ExportGeometry(objects);
|
---|
[1416] | 3197 | }
|
---|
[590] | 3198 |
|
---|
[1416] | 3199 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[469] | 3200 | delete exporter;
|
---|
[440] | 3201 | }
|
---|
[469] | 3202 | cout << "finished" << endl;
|
---|
[503] | 3203 | }
|
---|
[1551] | 3204 |
|
---|
[1545] | 3205 | // reset color code
|
---|
[600] | 3206 | mColorCode = savedColorCode;
|
---|
| 3207 |
|
---|
[1416] | 3208 |
|
---|
| 3209 | //////////////////
|
---|
[469] | 3210 | //-- visualization of the BSP splits
|
---|
[1416] | 3211 |
|
---|
[469] | 3212 | bool exportSplits = false;
|
---|
[1004] | 3213 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3214 |
|
---|
[469] | 3215 | if (exportSplits)
|
---|
[440] | 3216 | {
|
---|
[469] | 3217 | cout << "exporting splits ... ";
|
---|
[477] | 3218 | ExportSplits(objects);
|
---|
[469] | 3219 | cout << "finished" << endl;
|
---|
[440] | 3220 | }
|
---|
[477] | 3221 |
|
---|
[1570] | 3222 | int leafOut;
|
---|
| 3223 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 3224 | const int raysOut = 100;
|
---|
| 3225 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 3226 | }
|
---|
| 3227 |
|
---|
| 3228 |
|
---|
[477] | 3229 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 3230 | {
|
---|
| 3231 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3232 |
|
---|
[503] | 3233 | if (exporter)
|
---|
| 3234 | {
|
---|
[598] | 3235 | //exporter->SetFilled();
|
---|
| 3236 | if (mExportGeometry)
|
---|
[1545] | 3237 | {
|
---|
[598] | 3238 | exporter->ExportGeometry(objects);
|
---|
[1545] | 3239 | }
|
---|
[598] | 3240 |
|
---|
[503] | 3241 | Material m;
|
---|
[440] | 3242 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3243 | exporter->SetForcedMaterial(m);
|
---|
| 3244 | exporter->SetWireframe();
|
---|
[503] | 3245 |
|
---|
[440] | 3246 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 3247 |
|
---|
[1545] | 3248 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 3249 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3250 | exporter->SetForcedMaterial(m);
|
---|
[482] | 3251 | //exporter->ResetForcedMaterial();
|
---|
| 3252 |
|
---|
[440] | 3253 | delete exporter;
|
---|
| 3254 | }
|
---|
| 3255 | }
|
---|
| 3256 |
|
---|
[477] | 3257 |
|
---|
[1570] | 3258 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3259 | const int maxViewCells,
|
---|
| 3260 | const bool sortViewCells,
|
---|
| 3261 | const bool exportPvs,
|
---|
| 3262 | const bool exportRays,
|
---|
| 3263 | const int maxRays,
|
---|
| 3264 | const string prefix,
|
---|
| 3265 | VssRayContainer *visRays)
|
---|
[440] | 3266 | {
|
---|
[1570] | 3267 | if (sortViewCells)
|
---|
| 3268 | { // sort view cells to visualize the largest view cells
|
---|
| 3269 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 3270 | }
|
---|
[440] | 3271 |
|
---|
[1545] | 3272 | //////////
|
---|
[1570] | 3273 | //-- some view cells for output
|
---|
[503] | 3274 |
|
---|
[1570] | 3275 | ViewCell::NewMail();
|
---|
| 3276 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 3277 |
|
---|
| 3278 | for (int i = 0; i < limit; ++ i)
|
---|
| 3279 | {
|
---|
| 3280 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 3281 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 3282 |
|
---|
[1570] | 3283 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 3284 | continue;
|
---|
[587] | 3285 |
|
---|
[1570] | 3286 | vc->Mail();
|
---|
[503] | 3287 |
|
---|
[1570] | 3288 | ObjectPvs pvs;
|
---|
| 3289 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 3290 |
|
---|
[1571] | 3291 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 3292 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3293 |
|
---|
[1709] | 3294 | cout << "view cell " << idx << ": pvs cost=" << (int)mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[582] | 3295 |
|
---|
[1570] | 3296 | if (exportRays)
|
---|
| 3297 | {
|
---|
| 3298 | ////////////
|
---|
| 3299 | //-- export rays piercing this view cell
|
---|
[469] | 3300 |
|
---|
[1571] | 3301 | // use rays stored with the view cells
|
---|
| 3302 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 3303 | VssRayContainer collectRays;
|
---|
| 3304 |
|
---|
| 3305 | // collect initial view cells
|
---|
| 3306 | ViewCellContainer leaves;
|
---|
| 3307 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3308 |
|
---|
| 3309 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3310 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 3311 | {
|
---|
[1571] | 3312 | // prepare some rays for output
|
---|
[1696] | 3313 | VssRayContainer::const_iterator rit, rit_end = (*vit)->GetOrCreateRays()->end();
|
---|
| 3314 | for (rit = (*vit)->GetOrCreateRays()->begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 3315 | {
|
---|
| 3316 | collectRays.push_back(*rit);
|
---|
| 3317 | }
|
---|
| 3318 | }
|
---|
| 3319 |
|
---|
| 3320 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3321 |
|
---|
[1570] | 3322 | // prepare some rays for output
|
---|
| 3323 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3324 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3325 | {
|
---|
[1570] | 3326 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3327 | if (p < raysOut)
|
---|
[587] | 3328 | {
|
---|
[1571] | 3329 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3330 | {
|
---|
[1571] | 3331 | vcRays.push_back(*rit);
|
---|
[1580] | 3332 | }
|
---|
[1571] | 3333 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 3334 | vcRays2.push_back(*rit);
|
---|
| 3335 | else
|
---|
| 3336 | vcRays3.push_back(*rit);
|
---|
| 3337 |
|
---|
[587] | 3338 | }
|
---|
[477] | 3339 | }
|
---|
[1571] | 3340 |
|
---|
| 3341 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3342 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3343 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3344 | }
|
---|
[1570] | 3345 |
|
---|
| 3346 | ////////////////
|
---|
| 3347 | //-- export view cell geometry
|
---|
[587] | 3348 |
|
---|
[478] | 3349 | exporter->SetWireframe();
|
---|
[477] | 3350 |
|
---|
[478] | 3351 | Material m;//= RandomMaterial();
|
---|
| 3352 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3353 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3354 |
|
---|
[1416] | 3355 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3356 | exporter->SetFilled();
|
---|
[469] | 3357 |
|
---|
[1570] | 3358 | if (exportPvs)
|
---|
[478] | 3359 | {
|
---|
[1570] | 3360 | Intersectable::NewMail();
|
---|
[1742] | 3361 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 3362 |
|
---|
| 3363 | while (pit.HasMoreEntries())
|
---|
[1570] | 3364 | {
|
---|
[1742] | 3365 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3366 |
|
---|
| 3367 | // output PVS of view cell
|
---|
| 3368 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 3369 |
|
---|
| 3370 | if (!intersect->Mailed())
|
---|
| 3371 | {
|
---|
| 3372 | intersect->Mail();
|
---|
[1571] | 3373 |
|
---|
[1570] | 3374 | m = RandomMaterial();
|
---|
| 3375 | exporter->SetForcedMaterial(m);
|
---|
| 3376 | exporter->ExportIntersectable(intersect);
|
---|
| 3377 | }
|
---|
[503] | 3378 | }
|
---|
[1570] | 3379 | cout << endl;
|
---|
[477] | 3380 | }
|
---|
[1570] | 3381 |
|
---|
[478] | 3382 | DEL_PTR(exporter);
|
---|
| 3383 | cout << "finished" << endl;
|
---|
[477] | 3384 | }
|
---|
[440] | 3385 | }
|
---|
| 3386 |
|
---|
[441] | 3387 |
|
---|
[693] | 3388 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3389 | {
|
---|
| 3390 | ViewCellContainer leaves;
|
---|
| 3391 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3392 |
|
---|
| 3393 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3394 |
|
---|
| 3395 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3396 | float subdivVol = 0;
|
---|
| 3397 | float newVol = 0;
|
---|
| 3398 |
|
---|
| 3399 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3400 | {
|
---|
| 3401 | BspNodeGeometry geom;
|
---|
[1551] | 3402 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3403 |
|
---|
| 3404 | const float lVol = geom.GetVolume();
|
---|
| 3405 | newVol += lVol;
|
---|
| 3406 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3407 |
|
---|
[1551] | 3408 | const float thres = 0.9f;
|
---|
[694] | 3409 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3410 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3411 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3412 | }
|
---|
| 3413 |
|
---|
| 3414 | Debug << "exact volume: " << vol << endl;
|
---|
| 3415 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3416 | Debug << "new volume: " << newVol << endl;
|
---|
| 3417 | }
|
---|
| 3418 |
|
---|
| 3419 |
|
---|
[580] | 3420 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3421 | ViewCell *vc,
|
---|
[1416] | 3422 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3423 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3424 | ) const
|
---|
[1557] | 3425 | {
|
---|
[660] | 3426 | if (clipPlane)
|
---|
[591] | 3427 | {
|
---|
[1047] | 3428 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3429 |
|
---|
[726] | 3430 | ViewCellContainer leaves;
|
---|
| 3431 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3432 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3433 |
|
---|
[726] | 3434 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3435 | {
|
---|
[726] | 3436 | BspNodeGeometry geom;
|
---|
[681] | 3437 | BspNodeGeometry front;
|
---|
| 3438 | BspNodeGeometry back;
|
---|
[591] | 3439 |
|
---|
[1551] | 3440 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3441 |
|
---|
[1563] | 3442 | const float eps = 0.0001f;
|
---|
[1047] | 3443 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3444 |
|
---|
| 3445 | if (cf == -1)
|
---|
| 3446 | {
|
---|
| 3447 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3448 | }
|
---|
| 3449 | else if (cf == 0)
|
---|
| 3450 | {
|
---|
| 3451 | geom.SplitGeometry(front,
|
---|
| 3452 | back,
|
---|
[1047] | 3453 | plane,
|
---|
[726] | 3454 | mViewSpaceBox,
|
---|
| 3455 | eps);
|
---|
[1563] | 3456 |
|
---|
[726] | 3457 | if (back.Valid())
|
---|
[1563] | 3458 | {
|
---|
[726] | 3459 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3460 | }
|
---|
| 3461 | }
|
---|
[681] | 3462 | }
|
---|
[591] | 3463 | }
|
---|
| 3464 | else
|
---|
| 3465 | {
|
---|
[1563] | 3466 | // export mesh if available
|
---|
| 3467 | // TODO: some bug here?
|
---|
| 3468 | if (1 && vc->GetMesh())
|
---|
| 3469 | {
|
---|
| 3470 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3471 | }
|
---|
| 3472 | else
|
---|
| 3473 | {
|
---|
| 3474 | BspNodeGeometry geom;
|
---|
| 3475 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3476 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3477 | }
|
---|
[591] | 3478 | }
|
---|
[482] | 3479 | }
|
---|
| 3480 |
|
---|
[503] | 3481 |
|
---|
| 3482 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3483 | {
|
---|
[1551] | 3484 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3485 | BspNodeGeometry geom;
|
---|
| 3486 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3487 |
|
---|
[1001] | 3488 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3489 |
|
---|
[840] | 3490 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3491 | vc->SetMesh(mesh);
|
---|
[503] | 3492 | }
|
---|
| 3493 |
|
---|
[551] | 3494 |
|
---|
[587] | 3495 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3496 | const bool createMesh)
|
---|
[502] | 3497 | {
|
---|
[587] | 3498 | float area = 0;
|
---|
| 3499 | float volume = 0;
|
---|
[572] | 3500 |
|
---|
[587] | 3501 | ViewCellContainer leaves;
|
---|
| 3502 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3503 |
|
---|
| 3504 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3505 |
|
---|
[693] | 3506 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3507 | {
|
---|
| 3508 | BspNodeGeometry geom;
|
---|
| 3509 |
|
---|
[1551] | 3510 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3511 |
|
---|
[719] | 3512 | const float lVol = geom.GetVolume();
|
---|
| 3513 | const float lArea = geom.GetArea();
|
---|
[693] | 3514 |
|
---|
| 3515 | area += lArea;
|
---|
| 3516 | volume += lVol;
|
---|
[1551] | 3517 |
|
---|
| 3518 | CreateMesh(*it);
|
---|
[587] | 3519 | }
|
---|
| 3520 |
|
---|
| 3521 | viewCell->SetVolume(volume);
|
---|
| 3522 | viewCell->SetArea(area);
|
---|
[502] | 3523 | }
|
---|
| 3524 |
|
---|
[580] | 3525 |
|
---|
[879] | 3526 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3527 | {
|
---|
[1021] | 3528 | if (!ViewCellsConstructed())
|
---|
[1545] | 3529 | {
|
---|
[587] | 3530 | return NULL;
|
---|
[1545] | 3531 | }
|
---|
[587] | 3532 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3533 | {
|
---|
[587] | 3534 | return NULL;
|
---|
[1545] | 3535 | }
|
---|
[587] | 3536 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3537 | }
|
---|
| 3538 |
|
---|
| 3539 |
|
---|
[587] | 3540 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3541 | vector<MergeCandidate> &candidates)
|
---|
| 3542 | {
|
---|
| 3543 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3544 |
|
---|
| 3545 | if (mUseRaysForMerge)
|
---|
| 3546 | {
|
---|
| 3547 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3548 | }
|
---|
| 3549 | else
|
---|
| 3550 | {
|
---|
| 3551 | vector<BspLeaf *> leaves;
|
---|
| 3552 | mBspTree->CollectLeaves(leaves);
|
---|
| 3553 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3554 | }
|
---|
| 3555 |
|
---|
| 3556 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3557 | }
|
---|
| 3558 |
|
---|
| 3559 |
|
---|
[440] | 3560 |
|
---|
[1047] | 3561 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3562 | const bool exportPvs,
|
---|
| 3563 | const ObjectContainer &objects)
|
---|
[590] | 3564 | {
|
---|
[1551] | 3565 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3566 | {
|
---|
| 3567 | return false;
|
---|
| 3568 | }
|
---|
| 3569 |
|
---|
[590] | 3570 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3571 |
|
---|
[1551] | 3572 | OUT_STREAM stream(filename.c_str());
|
---|
| 3573 |
|
---|
[590] | 3574 | // for output we need unique ids for each view cell
|
---|
| 3575 | CreateUniqueViewCellIds();
|
---|
[503] | 3576 |
|
---|
[590] | 3577 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3578 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3579 |
|
---|
[1551] | 3580 | if (exportPvs)
|
---|
| 3581 | {
|
---|
| 3582 | //////////
|
---|
| 3583 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3584 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3585 |
|
---|
[1551] | 3586 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3587 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3588 |
|
---|
[1551] | 3589 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3590 | {
|
---|
[1563] | 3591 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3592 |
|
---|
[1563] | 3593 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3594 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3595 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3596 | }
|
---|
[590] | 3597 |
|
---|
[1551] | 3598 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3599 | }
|
---|
| 3600 |
|
---|
| 3601 | ///////////
|
---|
| 3602 | //-- export the view cells and the pvs
|
---|
| 3603 |
|
---|
| 3604 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3605 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3606 |
|
---|
| 3607 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 3608 |
|
---|
[590] | 3609 | stream << "</ViewCells>" << endl;
|
---|
| 3610 |
|
---|
[1551] | 3611 | /////////////
|
---|
| 3612 | //-- export the view space hierarchy
|
---|
| 3613 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 3614 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3615 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 3616 |
|
---|
[590] | 3617 | mBspTree->Export(stream);
|
---|
| 3618 |
|
---|
[1551] | 3619 | // end tags
|
---|
| 3620 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 3621 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3622 |
|
---|
[1551] | 3623 | stream.close();
|
---|
[590] | 3624 | cout << "finished" << endl;
|
---|
[1551] | 3625 |
|
---|
[590] | 3626 | return true;
|
---|
| 3627 | }
|
---|
| 3628 |
|
---|
| 3629 |
|
---|
[1545] | 3630 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 3631 | {
|
---|
| 3632 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 3633 |
|
---|
| 3634 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3635 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1545] | 3636 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 3637 |
|
---|
| 3638 | float volume = 0;
|
---|
| 3639 | vector<BspLeaf *> leaves;
|
---|
| 3640 | mBspTree->CollectLeaves(leaves);
|
---|
| 3641 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 3642 | ViewCell::NewMail();
|
---|
| 3643 |
|
---|
[1545] | 3644 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 3645 | {
|
---|
| 3646 | BspLeaf *leaf = *lit;
|
---|
| 3647 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 3648 |
|
---|
[1548] | 3649 | if (!vc->Mailed())
|
---|
| 3650 | {
|
---|
| 3651 | vc->Mail();
|
---|
| 3652 | vc->SetMergeCost(0.0f);
|
---|
| 3653 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 3654 |
|
---|
[1548] | 3655 | volume += vc->GetVolume();
|
---|
| 3656 | volume += vc->GetVolume();
|
---|
| 3657 | vcRoot->SetVolume(volume);
|
---|
| 3658 | }
|
---|
[1545] | 3659 | }
|
---|
| 3660 |
|
---|
| 3661 | return vcRoot;
|
---|
| 3662 | }
|
---|
| 3663 |
|
---|
| 3664 |
|
---|
[650] | 3665 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3666 | {
|
---|
[752] | 3667 | // terminate recursion
|
---|
[650] | 3668 | if (root->IsLeaf())
|
---|
| 3669 | {
|
---|
[752] | 3670 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3671 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3672 | return leaf->GetViewCell();
|
---|
[650] | 3673 | }
|
---|
| 3674 |
|
---|
| 3675 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3676 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3677 |
|
---|
[752] | 3678 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3679 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[650] | 3680 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3681 |
|
---|
[650] | 3682 | float volume = 0;
|
---|
[649] | 3683 |
|
---|
[650] | 3684 | BspNode *front = interior->GetFront();
|
---|
| 3685 | BspNode *back = interior->GetBack();
|
---|
[649] | 3686 |
|
---|
[752] | 3687 |
|
---|
[1545] | 3688 | ////////////
|
---|
[752] | 3689 | //-- recursivly compute child hierarchies
|
---|
[1545] | 3690 |
|
---|
[650] | 3691 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3692 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3693 |
|
---|
[752] | 3694 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3695 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3696 |
|
---|
[650] | 3697 | volume += backVc->GetVolume();
|
---|
| 3698 | volume += frontVc->GetVolume();
|
---|
[649] | 3699 |
|
---|
[650] | 3700 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3701 |
|
---|
[650] | 3702 | return viewCellInterior;
|
---|
[610] | 3703 | }
|
---|
| 3704 |
|
---|
[650] | 3705 |
|
---|
[590] | 3706 | /************************************************************************/
|
---|
| 3707 | /* KdViewCellsManager implementation */
|
---|
| 3708 | /************************************************************************/
|
---|
| 3709 |
|
---|
| 3710 |
|
---|
| 3711 |
|
---|
[1264] | 3712 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3713 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3714 | {
|
---|
| 3715 | }
|
---|
| 3716 |
|
---|
[605] | 3717 |
|
---|
[471] | 3718 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3719 | {
|
---|
[479] | 3720 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3721 | if (0)
|
---|
| 3722 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3723 | else
|
---|
| 3724 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3725 | }
|
---|
| 3726 |
|
---|
| 3727 |
|
---|
| 3728 |
|
---|
[479] | 3729 |
|
---|
[480] | 3730 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3731 | {
|
---|
| 3732 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3733 | }
|
---|
[479] | 3734 |
|
---|
[519] | 3735 |
|
---|
[574] | 3736 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3737 | const VssRayContainer &rays)
|
---|
[440] | 3738 | {
|
---|
[441] | 3739 | // if view cells already constructed
|
---|
[440] | 3740 | if (ViewCellsConstructed())
|
---|
| 3741 | return 0;
|
---|
[441] | 3742 |
|
---|
[440] | 3743 | mKdTree->Construct();
|
---|
| 3744 |
|
---|
[480] | 3745 | mTotalAreaValid = false;
|
---|
[469] | 3746 | // create the view cells
|
---|
| 3747 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3748 | // cast rays
|
---|
[574] | 3749 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3750 |
|
---|
[479] | 3751 | EvaluateViewCellsStats();
|
---|
[660] | 3752 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3753 |
|
---|
[440] | 3754 | return 0;
|
---|
| 3755 | }
|
---|
| 3756 |
|
---|
[587] | 3757 |
|
---|
[440] | 3758 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3759 | {
|
---|
| 3760 | return mKdTree->GetRoot() != NULL;
|
---|
| 3761 | }
|
---|
| 3762 |
|
---|
[1020] | 3763 |
|
---|
[503] | 3764 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3765 | const VssRayContainer &rays)
|
---|
[440] | 3766 | {
|
---|
| 3767 | return 0;
|
---|
| 3768 | }
|
---|
| 3769 |
|
---|
[1020] | 3770 |
|
---|
[1570] | 3771 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3772 | const int maxViewCells,
|
---|
| 3773 | const bool sortViewCells,
|
---|
| 3774 | const bool exportPvs,
|
---|
| 3775 | const bool exportRays,
|
---|
| 3776 | const int maxRays,
|
---|
| 3777 | const string prefix,
|
---|
| 3778 | VssRayContainer *visRays)
|
---|
| 3779 | {
|
---|
| 3780 | // TODO
|
---|
| 3781 | }
|
---|
| 3782 |
|
---|
| 3783 |
|
---|
[440] | 3784 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3785 | const VssRayContainer &sampleRays)
|
---|
[440] | 3786 | {
|
---|
[441] | 3787 | if (!ViewCellsConstructed())
|
---|
| 3788 | return;
|
---|
| 3789 |
|
---|
[469] | 3790 | // using view cells instead of the kd PVS of objects
|
---|
| 3791 | const bool useViewCells = true;
|
---|
| 3792 | bool exportRays = false;
|
---|
[440] | 3793 |
|
---|
| 3794 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3795 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3796 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3797 |
|
---|
[469] | 3798 | if (useViewCells)
|
---|
[440] | 3799 | {
|
---|
[469] | 3800 | const int leafOut = 10;
|
---|
[503] | 3801 |
|
---|
[469] | 3802 | ViewCell::NewMail();
|
---|
[503] | 3803 |
|
---|
[469] | 3804 | //-- some rays for output
|
---|
| 3805 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3806 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3807 |
|
---|
| 3808 | //-- some random view cells and rays for output
|
---|
| 3809 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3810 |
|
---|
[469] | 3811 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3812 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3813 |
|
---|
[469] | 3814 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3815 | {
|
---|
[469] | 3816 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3817 | RayContainer vcRays;
|
---|
[503] | 3818 |
|
---|
[469] | 3819 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3820 | #if 0
|
---|
[469] | 3821 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3822 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3823 | {
|
---|
[469] | 3824 | Ray *ray = sampleRays[k];
|
---|
[503] | 3825 |
|
---|
[469] | 3826 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3827 | {
|
---|
| 3828 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3829 |
|
---|
| 3830 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3831 | {
|
---|
| 3832 | vcRays.push_back(ray);
|
---|
| 3833 | }
|
---|
| 3834 | }
|
---|
[479] | 3835 | }
|
---|
[503] | 3836 | #endif
|
---|
[469] | 3837 | Intersectable::NewMail();
|
---|
[503] | 3838 |
|
---|
[469] | 3839 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 3840 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 3841 |
|
---|
[1570] | 3842 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3843 | exporter->SetFilled();
|
---|
| 3844 |
|
---|
| 3845 | exporter->SetWireframe();
|
---|
| 3846 | //exporter->SetFilled();
|
---|
[503] | 3847 |
|
---|
[469] | 3848 | Material m;//= RandomMaterial();
|
---|
| 3849 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3850 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3851 |
|
---|
[469] | 3852 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3853 | exporter->ExportBox(box);
|
---|
| 3854 |
|
---|
| 3855 | // export rays piercing this view cell
|
---|
[503] | 3856 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3857 |
|
---|
[469] | 3858 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3859 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3860 |
|
---|
[469] | 3861 | // exporter->SetWireframe();
|
---|
| 3862 | exporter->SetFilled();
|
---|
[503] | 3863 |
|
---|
[1742] | 3864 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
| 3865 |
|
---|
| 3866 | while (pit.HasMoreEntries())
|
---|
| 3867 | {
|
---|
| 3868 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3869 |
|
---|
| 3870 | //-- output PVS of view cell
|
---|
| 3871 | Intersectable *intersect = entry.mObject;
|
---|
[469] | 3872 | if (!intersect->Mailed())
|
---|
| 3873 | {
|
---|
| 3874 | exporter->ExportIntersectable(intersect);
|
---|
| 3875 | intersect->Mail();
|
---|
[503] | 3876 | }
|
---|
[440] | 3877 | }
|
---|
[503] | 3878 |
|
---|
[469] | 3879 | DEL_PTR(exporter);
|
---|
| 3880 | cout << "finished" << endl;
|
---|
[440] | 3881 | }
|
---|
[469] | 3882 |
|
---|
| 3883 | DEL_PTR(rays);
|
---|
[440] | 3884 | }
|
---|
[469] | 3885 | else // using kd PVS of objects
|
---|
| 3886 | {
|
---|
| 3887 | for (int i = 0; i < limit; ++ i)
|
---|
| 3888 | {
|
---|
| 3889 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3890 |
|
---|
[469] | 3891 | // check whether we can add this to the rays
|
---|
[503] | 3892 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3893 | {
|
---|
| 3894 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3895 | {
|
---|
| 3896 | rays[j].push_back(ray);
|
---|
| 3897 | }
|
---|
| 3898 | }
|
---|
| 3899 | }
|
---|
[440] | 3900 |
|
---|
[503] | 3901 | if (exportRays)
|
---|
[469] | 3902 | {
|
---|
| 3903 | Exporter *exporter = NULL;
|
---|
| 3904 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3905 | exporter->SetWireframe();
|
---|
| 3906 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3907 |
|
---|
[728] | 3908 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3909 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3910 |
|
---|
| 3911 | exporter->SetFilled();
|
---|
| 3912 | delete exporter;
|
---|
| 3913 | }
|
---|
[440] | 3914 |
|
---|
[503] | 3915 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3916 | {
|
---|
| 3917 | Intersectable *object = objects[k];
|
---|
[1570] | 3918 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[440] | 3919 |
|
---|
[1570] | 3920 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3921 | exporter->SetWireframe();
|
---|
[503] | 3922 |
|
---|
[1736] | 3923 | // matt: no kd pvs
|
---|
| 3924 | /*
|
---|
[1233] | 3925 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 3926 | Intersectable::NewMail();
|
---|
[503] | 3927 |
|
---|
[469] | 3928 | // avoid adding the object to the list
|
---|
| 3929 | object->Mail();
|
---|
| 3930 | ObjectContainer visibleObjects;
|
---|
[503] | 3931 |
|
---|
[1233] | 3932 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3933 | {
|
---|
[1233] | 3934 | KdNode *node = (*kit).first;
|
---|
[469] | 3935 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3936 |
|
---|
[469] | 3937 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3938 | }
|
---|
[503] | 3939 |
|
---|
[469] | 3940 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3941 | exporter->SetFilled();
|
---|
[503] | 3942 |
|
---|
[469] | 3943 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3944 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3945 |
|
---|
[469] | 3946 | Material m;
|
---|
| 3947 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3948 | exporter->SetForcedMaterial(m);
|
---|
| 3949 | exporter->ExportIntersectable(object);
|
---|
[1736] | 3950 | */
|
---|
[469] | 3951 | delete exporter;
|
---|
[440] | 3952 | }
|
---|
[503] | 3953 | }
|
---|
[440] | 3954 | }
|
---|
| 3955 |
|
---|
[469] | 3956 |
|
---|
[580] | 3957 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3958 | {
|
---|
| 3959 | return new KdViewCell(mesh);
|
---|
| 3960 | }
|
---|
[482] | 3961 |
|
---|
[580] | 3962 |
|
---|
| 3963 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3964 | ViewCell *vc,
|
---|
[1416] | 3965 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3966 | const AxisAlignedPlane *clipPlane
|
---|
| 3967 | ) const
|
---|
[482] | 3968 | {
|
---|
[580] | 3969 | ViewCellContainer leaves;
|
---|
| 3970 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3971 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3972 |
|
---|
| 3973 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3974 | {
|
---|
| 3975 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 3976 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 3977 | }
|
---|
[482] | 3978 | }
|
---|
| 3979 |
|
---|
| 3980 |
|
---|
[440] | 3981 | int KdViewCellsManager::GetType() const
|
---|
| 3982 | {
|
---|
| 3983 | return ViewCellsManager::KD;
|
---|
| 3984 | }
|
---|
| 3985 |
|
---|
| 3986 |
|
---|
[441] | 3987 |
|
---|
[440] | 3988 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3989 | {
|
---|
| 3990 | KdNode *node = leaf;
|
---|
| 3991 |
|
---|
| 3992 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3993 | node = node->mParent;
|
---|
[1176] | 3994 |
|
---|
[440] | 3995 | return node;
|
---|
| 3996 | }
|
---|
| 3997 |
|
---|
[469] | 3998 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3999 | const Vector3 &termination,
|
---|
| 4000 | ViewCellContainer &viewcells)
|
---|
[466] | 4001 | {
|
---|
[469] | 4002 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 4003 | }
|
---|
| 4004 |
|
---|
[469] | 4005 |
|
---|
[503] | 4006 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4007 | {
|
---|
[551] | 4008 | // TODO
|
---|
[503] | 4009 | }
|
---|
| 4010 |
|
---|
[580] | 4011 |
|
---|
| 4012 |
|
---|
| 4013 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4014 | vector<MergeCandidate> &candidates)
|
---|
| 4015 | {
|
---|
| 4016 | // TODO
|
---|
| 4017 | }
|
---|
| 4018 |
|
---|
[1021] | 4019 |
|
---|
| 4020 |
|
---|
[503] | 4021 | /**************************************************************************/
|
---|
| 4022 | /* VspBspViewCellsManager implementation */
|
---|
| 4023 | /**************************************************************************/
|
---|
[482] | 4024 |
|
---|
[503] | 4025 |
|
---|
[1264] | 4026 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 4027 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 4028 | {
|
---|
[1004] | 4029 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 4030 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 4031 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 4032 | }
|
---|
| 4033 |
|
---|
[477] | 4034 |
|
---|
[475] | 4035 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 4036 | {
|
---|
| 4037 | }
|
---|
| 4038 |
|
---|
[477] | 4039 |
|
---|
[471] | 4040 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 4041 | {
|
---|
[551] | 4042 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 4043 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 4044 | else
|
---|
| 4045 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 4046 | }
|
---|
| 4047 |
|
---|
[477] | 4048 |
|
---|
[480] | 4049 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 4050 | {
|
---|
[1545] | 4051 | // view cells tree constructed?
|
---|
[581] | 4052 | if (!ViewCellsTreeConstructed())
|
---|
| 4053 | {
|
---|
[590] | 4054 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 4055 | }
|
---|
| 4056 | else
|
---|
[1264] | 4057 | {
|
---|
| 4058 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 4059 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 4060 | }
|
---|
[480] | 4061 | }
|
---|
| 4062 |
|
---|
| 4063 |
|
---|
[1021] | 4064 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4065 | vector<MergeCandidate> &candidates)
|
---|
| 4066 | {
|
---|
| 4067 | cout << "collecting merge candidates ... " << endl;
|
---|
| 4068 |
|
---|
| 4069 | if (mUseRaysForMerge)
|
---|
| 4070 | {
|
---|
| 4071 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 4072 | }
|
---|
| 4073 | else
|
---|
| 4074 | {
|
---|
| 4075 | vector<BspLeaf *> leaves;
|
---|
| 4076 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 4077 |
|
---|
| 4078 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 4079 | }
|
---|
| 4080 |
|
---|
| 4081 | cout << "fininshed collecting candidates" << endl;
|
---|
| 4082 | }
|
---|
| 4083 |
|
---|
| 4084 |
|
---|
[442] | 4085 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4086 | {
|
---|
| 4087 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 4088 | }
|
---|
| 4089 |
|
---|
[462] | 4090 |
|
---|
[442] | 4091 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4092 | {
|
---|
| 4093 | return new BspViewCell(mesh);
|
---|
| 4094 | }
|
---|
| 4095 |
|
---|
[569] | 4096 |
|
---|
[574] | 4097 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 4098 | const VssRayContainer &rays)
|
---|
[442] | 4099 | {
|
---|
[710] | 4100 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4101 |
|
---|
[503] | 4102 | // if view cells were already constructed
|
---|
| 4103 | if (ViewCellsConstructed())
|
---|
[1545] | 4104 | {
|
---|
[503] | 4105 | return 0;
|
---|
[1545] | 4106 | }
|
---|
[442] | 4107 |
|
---|
[503] | 4108 | int sampleContributions = 0;
|
---|
| 4109 | VssRayContainer sampleRays;
|
---|
| 4110 |
|
---|
[1545] | 4111 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 4112 |
|
---|
[660] | 4113 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 4114 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 4115 |
|
---|
[1545] | 4116 | VssRayContainer savedRays;
|
---|
[487] | 4117 |
|
---|
[1545] | 4118 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4119 | {
|
---|
| 4120 | VssRayContainer constructionRays;
|
---|
| 4121 |
|
---|
| 4122 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 4123 |
|
---|
[1545] | 4124 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 4125 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 4126 |
|
---|
[667] | 4127 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 4128 | }
|
---|
[666] | 4129 | else
|
---|
[1221] | 4130 | {
|
---|
[1545] | 4131 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 4132 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 4133 | }
|
---|
[667] | 4134 |
|
---|
[490] | 4135 | // collapse invalid regions
|
---|
[491] | 4136 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 4137 | long startTime = GetTime();
|
---|
| 4138 |
|
---|
[1002] | 4139 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 4140 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4141 | << " seconds" << endl;
|
---|
| 4142 |
|
---|
[495] | 4143 | cout << "finished" << endl;
|
---|
[503] | 4144 |
|
---|
[1444] | 4145 | /////////////////
|
---|
[1221] | 4146 | //-- stats after construction
|
---|
| 4147 |
|
---|
[660] | 4148 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 4149 |
|
---|
[480] | 4150 | ResetViewCells();
|
---|
[660] | 4151 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 4152 |
|
---|
[491] | 4153 |
|
---|
[1444] | 4154 | //////////////////////
|
---|
[1545] | 4155 | //-- recast the rest of the rays
|
---|
[1570] | 4156 |
|
---|
[495] | 4157 | startTime = GetTime();
|
---|
[503] | 4158 |
|
---|
[491] | 4159 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 4160 |
|
---|
| 4161 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4162 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 4163 |
|
---|
[491] | 4164 | cout << "finished" << endl;
|
---|
| 4165 |
|
---|
[503] | 4166 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 4167 | << " secs" << endl;
|
---|
[442] | 4168 |
|
---|
[485] | 4169 | cout << "construction finished" << endl;
|
---|
[503] | 4170 |
|
---|
[719] | 4171 | if (0)
|
---|
[1545] | 4172 | { ////////
|
---|
[1077] | 4173 | //-- real meshes are contructed at this stage
|
---|
[719] | 4174 | cout << "finalizing view cells ... ";
|
---|
| 4175 | FinalizeViewCells(true);
|
---|
| 4176 | cout << "finished" << endl;
|
---|
| 4177 | }
|
---|
| 4178 |
|
---|
[442] | 4179 | return sampleContributions;
|
---|
| 4180 | }
|
---|
| 4181 |
|
---|
[489] | 4182 |
|
---|
[503] | 4183 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 4184 | const ObjectContainer &objects)
|
---|
[475] | 4185 | {
|
---|
[442] | 4186 | int vcSize = 0;
|
---|
| 4187 | int pvsSize = 0;
|
---|
| 4188 |
|
---|
[650] | 4189 | //-- merge view cells
|
---|
| 4190 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 4191 | long startTime = GetTime();
|
---|
| 4192 |
|
---|
| 4193 |
|
---|
[597] | 4194 | if (mMergeViewCells)
|
---|
| 4195 | {
|
---|
| 4196 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 4197 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 4198 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 4199 | }
|
---|
| 4200 | else
|
---|
| 4201 | {
|
---|
[710] | 4202 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4203 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 4204 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 4205 |
|
---|
| 4206 | // compute pvs
|
---|
| 4207 | ObjectPvs pvs;
|
---|
| 4208 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 4209 | }
|
---|
[442] | 4210 |
|
---|
[666] | 4211 | if (1)
|
---|
| 4212 | {
|
---|
| 4213 | char mstats[100];
|
---|
[752] | 4214 | ObjectPvs pvs;
|
---|
| 4215 |
|
---|
[1004] | 4216 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 4217 | mViewCellsTree->ExportStats(mstats);
|
---|
| 4218 | }
|
---|
[485] | 4219 |
|
---|
[650] | 4220 | cout << "merged view cells in "
|
---|
| 4221 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 4222 |
|
---|
[650] | 4223 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 4224 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 4225 |
|
---|
| 4226 |
|
---|
[1444] | 4227 | //////////////////
|
---|
| 4228 | //-- stats and visualizations
|
---|
| 4229 |
|
---|
[600] | 4230 | int savedColorCode = mColorCode;
|
---|
| 4231 |
|
---|
[660] | 4232 | // get currently active view cell set
|
---|
| 4233 | ResetViewCells();
|
---|
| 4234 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 4235 |
|
---|
[1616] | 4236 | if (mShowVisualization) // export merged view cells
|
---|
[483] | 4237 | {
|
---|
[600] | 4238 | mColorCode = 0;
|
---|
[744] | 4239 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 4240 |
|
---|
[485] | 4241 | cout << "exporting view cells after merge ... ";
|
---|
| 4242 |
|
---|
| 4243 | if (exporter)
|
---|
[483] | 4244 | {
|
---|
[600] | 4245 | if (0)
|
---|
| 4246 | exporter->SetWireframe();
|
---|
| 4247 | else
|
---|
| 4248 | exporter->SetFilled();
|
---|
| 4249 |
|
---|
[1416] | 4250 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[600] | 4251 |
|
---|
[485] | 4252 | if (mExportGeometry)
|
---|
[483] | 4253 | {
|
---|
[485] | 4254 | Material m;
|
---|
| 4255 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4256 | exporter->SetForcedMaterial(m);
|
---|
| 4257 | exporter->SetFilled();
|
---|
[442] | 4258 |
|
---|
[485] | 4259 | exporter->ExportGeometry(objects);
|
---|
[442] | 4260 | }
|
---|
[485] | 4261 |
|
---|
[600] | 4262 | delete exporter;
|
---|
| 4263 | }
|
---|
| 4264 | cout << "finished" << endl;
|
---|
| 4265 | }
|
---|
| 4266 |
|
---|
[1616] | 4267 | if (mShowVisualization)
|
---|
[600] | 4268 | {
|
---|
[1416] | 4269 | // use pvs size for color coding
|
---|
| 4270 | mColorCode = 1;
|
---|
[744] | 4271 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 4272 |
|
---|
[600] | 4273 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 4274 |
|
---|
| 4275 | if (exporter)
|
---|
| 4276 | {
|
---|
[1416] | 4277 | exporter->SetFilled();
|
---|
[598] | 4278 |
|
---|
[1416] | 4279 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[598] | 4280 |
|
---|
[600] | 4281 | if (mExportGeometry)
|
---|
| 4282 | {
|
---|
| 4283 | Material m;
|
---|
| 4284 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4285 | exporter->SetForcedMaterial(m);
|
---|
| 4286 | exporter->SetFilled();
|
---|
| 4287 |
|
---|
| 4288 | exporter->ExportGeometry(objects);
|
---|
| 4289 | }
|
---|
| 4290 |
|
---|
[485] | 4291 | delete exporter;
|
---|
[442] | 4292 | }
|
---|
[485] | 4293 | cout << "finished" << endl;
|
---|
[442] | 4294 | }
|
---|
[600] | 4295 |
|
---|
| 4296 | mColorCode = savedColorCode;
|
---|
[503] | 4297 | }
|
---|
[475] | 4298 |
|
---|
[503] | 4299 |
|
---|
[564] | 4300 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 4301 | const ObjectContainer &objects)
|
---|
[503] | 4302 | {
|
---|
[485] | 4303 | mRenderer->RenderScene();
|
---|
[1616] | 4304 |
|
---|
[503] | 4305 | SimulationStatistics ss;
|
---|
[485] | 4306 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 4307 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 4308 |
|
---|
[1414] | 4309 | const long startTime = GetTime();
|
---|
[489] | 4310 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 4311 |
|
---|
| 4312 | // refining the merged view cells
|
---|
[580] | 4313 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 4314 |
|
---|
[442] | 4315 | //-- stats and visualizations
|
---|
| 4316 | cout << "finished" << endl;
|
---|
[485] | 4317 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 4318 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 4319 |
|
---|
[485] | 4320 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 4321 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 4322 | }
|
---|
[495] | 4323 |
|
---|
[517] | 4324 |
|
---|
[503] | 4325 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4326 | const VssRayContainer &rays)
|
---|
[840] | 4327 | {
|
---|
[503] | 4328 | if (!ViewCellsConstructed())
|
---|
| 4329 | {
|
---|
[517] | 4330 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4331 | return 0;
|
---|
| 4332 | }
|
---|
[520] | 4333 |
|
---|
[609] | 4334 | // view cells already finished before post processing step
|
---|
| 4335 | // (i.e. because they were loaded)
|
---|
[520] | 4336 | if (mViewCellsFinished)
|
---|
[542] | 4337 | {
|
---|
[551] | 4338 | FinalizeViewCells(true);
|
---|
[542] | 4339 | EvaluateViewCellsStats();
|
---|
[577] | 4340 |
|
---|
[517] | 4341 | return 0;
|
---|
[542] | 4342 | }
|
---|
[448] | 4343 |
|
---|
[710] | 4344 | // check if new view cells turned invalid
|
---|
| 4345 | int minPvs, maxPvs;
|
---|
[564] | 4346 |
|
---|
[710] | 4347 | if (0)
|
---|
| 4348 | {
|
---|
| 4349 | minPvs = mMinPvsSize;
|
---|
| 4350 | maxPvs = mMaxPvsSize;
|
---|
| 4351 | }
|
---|
| 4352 | else
|
---|
| 4353 | {
|
---|
[1414] | 4354 | // problem matt: why did I start here from zero?
|
---|
| 4355 | minPvs = 0;
|
---|
[710] | 4356 | maxPvs = mMaxPvsSize;
|
---|
| 4357 | }
|
---|
[720] | 4358 |
|
---|
[710] | 4359 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4360 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4361 |
|
---|
| 4362 | SetValidity(minPvs, maxPvs);
|
---|
| 4363 |
|
---|
[574] | 4364 | // update valid view space according to valid view cells
|
---|
[720] | 4365 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4366 |
|
---|
[720] | 4367 | // area has to be recomputed
|
---|
[574] | 4368 | mTotalAreaValid = false;
|
---|
[517] | 4369 | VssRayContainer postProcessRays;
|
---|
[605] | 4370 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4371 |
|
---|
[517] | 4372 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4373 |
|
---|
[1414] | 4374 | // should maybe be done here to allow merge working
|
---|
| 4375 | // with area or volume and to correct the rendering statistics
|
---|
[719] | 4376 | if (0) FinalizeViewCells(false);
|
---|
[720] | 4377 |
|
---|
[1444] | 4378 | //////////
|
---|
[597] | 4379 | //-- merge the individual view cells
|
---|
| 4380 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4381 |
|
---|
[1444] | 4382 | // refines the merged view cells
|
---|
[720] | 4383 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4384 |
|
---|
[1444] | 4385 |
|
---|
| 4386 | ///////////
|
---|
[660] | 4387 | //-- render simulation after merge + refine
|
---|
[1414] | 4388 |
|
---|
[1415] | 4389 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4390 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4391 | SimulationStatistics ss;
|
---|
| 4392 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4393 | cout << ss << endl;
|
---|
[1414] | 4394 |
|
---|
[600] | 4395 |
|
---|
[1418] | 4396 | ////////////
|
---|
[600] | 4397 | //-- compression
|
---|
[1586] | 4398 | //#if HAS_TO_BE_REDONE
|
---|
[600] | 4399 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4400 | {
|
---|
[1586] | 4401 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4402 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 4403 |
|
---|
[752] | 4404 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 4405 |
|
---|
[1586] | 4406 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4407 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 4408 | }
|
---|
[1586] | 4409 | //#endif
|
---|
[600] | 4410 |
|
---|
[517] | 4411 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4412 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4413 |
|
---|
[574] | 4414 | // recompute view cell list and statistics
|
---|
[520] | 4415 | ResetViewCells();
|
---|
| 4416 |
|
---|
[719] | 4417 | // compute final meshes and volume / area
|
---|
| 4418 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4419 |
|
---|
[503] | 4420 | return 0;
|
---|
[442] | 4421 | }
|
---|
| 4422 |
|
---|
[490] | 4423 |
|
---|
[442] | 4424 | int VspBspViewCellsManager::GetType() const
|
---|
| 4425 | {
|
---|
| 4426 | return VSP_BSP;
|
---|
| 4427 | }
|
---|
| 4428 |
|
---|
| 4429 |
|
---|
[650] | 4430 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4431 | {
|
---|
[752] | 4432 | // terminate recursion
|
---|
[650] | 4433 | if (root->IsLeaf())
|
---|
| 4434 | {
|
---|
[752] | 4435 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4436 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4437 | return leaf->GetViewCell();
|
---|
[650] | 4438 | }
|
---|
| 4439 |
|
---|
[752] | 4440 |
|
---|
[650] | 4441 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4442 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4443 |
|
---|
[752] | 4444 | // evaluate merge cost for priority traversal
|
---|
[650] | 4445 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4446 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4447 |
|
---|
[650] | 4448 | float volume = 0;
|
---|
| 4449 |
|
---|
| 4450 | BspNode *front = interior->GetFront();
|
---|
| 4451 | BspNode *back = interior->GetBack();
|
---|
[649] | 4452 |
|
---|
[752] | 4453 |
|
---|
| 4454 | ObjectPvs frontPvs, backPvs;
|
---|
| 4455 |
|
---|
| 4456 | //-- recursivly compute child hierarchies
|
---|
[650] | 4457 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4458 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4459 |
|
---|
[752] | 4460 |
|
---|
| 4461 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4462 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4463 |
|
---|
| 4464 | volume += backVc->GetVolume();
|
---|
| 4465 | volume += frontVc->GetVolume();
|
---|
| 4466 |
|
---|
| 4467 | viewCellInterior->SetVolume(volume);
|
---|
| 4468 |
|
---|
| 4469 | return viewCellInterior;
|
---|
[609] | 4470 | }
|
---|
| 4471 |
|
---|
| 4472 |
|
---|
[490] | 4473 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4474 | {
|
---|
| 4475 | if (!ViewCellsConstructed())
|
---|
| 4476 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4477 |
|
---|
| 4478 | // TODO: set reasonable limit
|
---|
| 4479 | const int limit = 20;
|
---|
| 4480 |
|
---|
| 4481 | for (int i = 0; i < limit; ++ i)
|
---|
| 4482 | {
|
---|
[542] | 4483 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4484 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4485 | {
|
---|
| 4486 | return true;
|
---|
| 4487 | }
|
---|
| 4488 | }
|
---|
[997] | 4489 |
|
---|
[490] | 4490 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4491 | return false;
|
---|
| 4492 | }
|
---|
| 4493 |
|
---|
| 4494 |
|
---|
| 4495 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4496 | {
|
---|
[1551] | 4497 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4498 | // validy update in preprocessor for all managers)
|
---|
| 4499 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4500 |
|
---|
[1551] | 4501 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4502 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4503 | }
|
---|
| 4504 |
|
---|
| 4505 |
|
---|
[442] | 4506 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4507 | const VssRayContainer &sampleRays)
|
---|
[442] | 4508 | {
|
---|
| 4509 | if (!ViewCellsConstructed())
|
---|
| 4510 | return;
|
---|
| 4511 |
|
---|
[485] | 4512 | VssRayContainer visRays;
|
---|
| 4513 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4514 |
|
---|
[1551] | 4515 | if (1)
|
---|
[1047] | 4516 | {
|
---|
[1416] | 4517 | //////////////////
|
---|
| 4518 | //-- export final view cell partition
|
---|
| 4519 |
|
---|
[1020] | 4520 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4521 |
|
---|
[442] | 4522 | if (exporter)
|
---|
| 4523 | {
|
---|
[580] | 4524 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4525 | if (0)
|
---|
[1563] | 4526 | { // export view space box
|
---|
[542] | 4527 | exporter->SetWireframe();
|
---|
| 4528 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4529 | exporter->SetFilled();
|
---|
| 4530 | }
|
---|
| 4531 |
|
---|
[1052] | 4532 | Material m;
|
---|
| 4533 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4534 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4535 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4536 |
|
---|
| 4537 | exporter->SetForcedMaterial(m);
|
---|
| 4538 |
|
---|
[1563] | 4539 | if (1 && mExportGeometry)
|
---|
[542] | 4540 | {
|
---|
[485] | 4541 | exporter->ExportGeometry(objects);
|
---|
[542] | 4542 | }
|
---|
[489] | 4543 |
|
---|
[1047] | 4544 | if (0 && mExportRays)
|
---|
[489] | 4545 | {
|
---|
[1052] | 4546 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4547 | }
|
---|
[1416] | 4548 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[1020] | 4549 |
|
---|
[442] | 4550 | delete exporter;
|
---|
[580] | 4551 | cout << "finished" << endl;
|
---|
[442] | 4552 | }
|
---|
[557] | 4553 | }
|
---|
[503] | 4554 |
|
---|
[1551] | 4555 | ////////////////
|
---|
[442] | 4556 | //-- visualization of the BSP splits
|
---|
[1551] | 4557 |
|
---|
[442] | 4558 | bool exportSplits = false;
|
---|
[1004] | 4559 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4560 |
|
---|
[442] | 4561 | if (exportSplits)
|
---|
| 4562 | {
|
---|
| 4563 | cout << "exporting splits ... ";
|
---|
[485] | 4564 | ExportSplits(objects, visRays);
|
---|
[442] | 4565 | cout << "finished" << endl;
|
---|
| 4566 | }
|
---|
| 4567 |
|
---|
[1551] | 4568 | ////////
|
---|
[542] | 4569 | //-- export single view cells
|
---|
[1570] | 4570 |
|
---|
| 4571 | int leafOut;
|
---|
| 4572 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4573 | const int raysOut = 100;
|
---|
| 4574 |
|
---|
| 4575 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4576 | }
|
---|
| 4577 |
|
---|
[503] | 4578 |
|
---|
[485] | 4579 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4580 | const VssRayContainer &rays)
|
---|
[442] | 4581 | {
|
---|
| 4582 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4583 |
|
---|
[503] | 4584 | if (exporter)
|
---|
| 4585 | {
|
---|
| 4586 | Material m;
|
---|
[442] | 4587 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4588 | exporter->SetForcedMaterial(m);
|
---|
| 4589 | exporter->SetWireframe();
|
---|
[503] | 4590 |
|
---|
[448] | 4591 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4592 |
|
---|
| 4593 | // take forced material, else big scenes cannot be viewed
|
---|
| 4594 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4595 | exporter->SetForcedMaterial(m);
|
---|
| 4596 | exporter->SetFilled();
|
---|
| 4597 |
|
---|
| 4598 | exporter->ResetForcedMaterial();
|
---|
[503] | 4599 |
|
---|
[442] | 4600 | // export rays
|
---|
[485] | 4601 | if (mExportRays)
|
---|
[1545] | 4602 | {
|
---|
[485] | 4603 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4604 | }
|
---|
[503] | 4605 |
|
---|
[485] | 4606 | if (mExportGeometry)
|
---|
[1545] | 4607 | {
|
---|
[442] | 4608 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4609 | }
|
---|
[442] | 4610 | delete exporter;
|
---|
| 4611 | }
|
---|
| 4612 | }
|
---|
| 4613 |
|
---|
[503] | 4614 |
|
---|
[1570] | 4615 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4616 | const int maxViewCells,
|
---|
| 4617 | const bool sortViewCells,
|
---|
| 4618 | const bool exportPvs,
|
---|
| 4619 | const bool exportRays,
|
---|
| 4620 | const int maxRays,
|
---|
| 4621 | const string prefix,
|
---|
| 4622 | VssRayContainer *visRays)
|
---|
| 4623 | {
|
---|
[694] | 4624 | if (sortViewCells)
|
---|
[801] | 4625 | {
|
---|
[1570] | 4626 | // sort view cells to visualize the largest view cells
|
---|
[801] | 4627 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4628 | }
|
---|
| 4629 |
|
---|
[1566] | 4630 | //////////
|
---|
[1570] | 4631 | //-- some view cells for output
|
---|
[483] | 4632 |
|
---|
[1570] | 4633 | ViewCell::NewMail();
|
---|
| 4634 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 4635 |
|
---|
[478] | 4636 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4637 | {
|
---|
[478] | 4638 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4639 |
|
---|
[1570] | 4640 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 4641 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 4642 |
|
---|
[1570] | 4643 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 4644 | continue;
|
---|
| 4645 |
|
---|
| 4646 | vc->Mail();
|
---|
| 4647 |
|
---|
[801] | 4648 | ObjectPvs pvs;
|
---|
| 4649 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4650 |
|
---|
[1570] | 4651 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 4652 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4653 |
|
---|
[1709] | 4654 | const float pvsCost = mViewCellsTree->GetPvsCost(vc);
|
---|
| 4655 | cout << "view cell " << vc->GetId() << ": pvs cost=" << pvsCost << endl;
|
---|
[587] | 4656 |
|
---|
[1570] | 4657 | if (exportRays)
|
---|
[442] | 4658 | {
|
---|
[1566] | 4659 | ////////////
|
---|
| 4660 | //-- export rays piercing this view cell
|
---|
| 4661 |
|
---|
| 4662 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 4663 | VssRayContainer vcRays;
|
---|
| 4664 | VssRayContainer collectRays;
|
---|
[639] | 4665 |
|
---|
[1566] | 4666 | // collect initial view cells
|
---|
[1551] | 4667 | ViewCellContainer leaves;
|
---|
| 4668 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 4669 |
|
---|
[1551] | 4670 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 4671 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 4672 | {
|
---|
[1551] | 4673 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 4674 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4675 |
|
---|
[1551] | 4676 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4677 | {
|
---|
[1551] | 4678 | collectRays.push_back(*rit);
|
---|
[639] | 4679 | }
|
---|
[1551] | 4680 | }
|
---|
[801] | 4681 |
|
---|
[1570] | 4682 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 4683 |
|
---|
[1566] | 4684 | // prepare some rays for output
|
---|
[1551] | 4685 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4686 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4687 | {
|
---|
[1566] | 4688 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 4689 |
|
---|
| 4690 | if (p < raysOut)
|
---|
[1566] | 4691 | {
|
---|
[1551] | 4692 | vcRays.push_back(*rit);
|
---|
[1566] | 4693 | }
|
---|
[639] | 4694 | }
|
---|
| 4695 |
|
---|
[1551] | 4696 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4697 | }
|
---|
[639] | 4698 |
|
---|
[1416] | 4699 | ////////////////
|
---|
[1020] | 4700 | //-- export view cell geometry
|
---|
[1416] | 4701 |
|
---|
[478] | 4702 | exporter->SetWireframe();
|
---|
[442] | 4703 |
|
---|
[478] | 4704 | Material m;//= RandomMaterial();
|
---|
| 4705 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4706 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4707 |
|
---|
[1416] | 4708 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4709 | exporter->SetFilled();
|
---|
[503] | 4710 |
|
---|
[1570] | 4711 | if (exportPvs)
|
---|
[574] | 4712 | {
|
---|
[801] | 4713 | Intersectable::NewMail();
|
---|
[1570] | 4714 |
|
---|
[1742] | 4715 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 4716 |
|
---|
[1570] | 4717 | cout << endl;
|
---|
[1742] | 4718 |
|
---|
[639] | 4719 | // output PVS of view cell
|
---|
[1742] | 4720 | while (pit.HasMoreEntries())
|
---|
| 4721 | {
|
---|
| 4722 | ObjectPvsEntry entry = pit.Next();
|
---|
| 4723 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 4724 |
|
---|
[639] | 4725 | if (!intersect->Mailed())
|
---|
| 4726 | {
|
---|
[1570] | 4727 | intersect->Mail();
|
---|
[1571] | 4728 |
|
---|
[643] | 4729 | m = RandomMaterial();
|
---|
| 4730 | exporter->SetForcedMaterial(m);
|
---|
[639] | 4731 | exporter->ExportIntersectable(intersect);
|
---|
| 4732 | }
|
---|
[503] | 4733 | }
|
---|
[1570] | 4734 | cout << endl;
|
---|
[442] | 4735 | }
|
---|
[801] | 4736 |
|
---|
[478] | 4737 | DEL_PTR(exporter);
|
---|
| 4738 | cout << "finished" << endl;
|
---|
[442] | 4739 | }
|
---|
| 4740 | }
|
---|
| 4741 |
|
---|
| 4742 |
|
---|
[1021] | 4743 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4744 | {
|
---|
[1021] | 4745 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4746 |
|
---|
[1021] | 4747 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4748 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4749 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4750 | const Vector3 width = Vector3(w);
|
---|
| 4751 |
|
---|
| 4752 | PrVs testPrVs;
|
---|
| 4753 |
|
---|
| 4754 | if (exporter)
|
---|
| 4755 | {
|
---|
| 4756 | ViewCellContainer viewCells;
|
---|
| 4757 |
|
---|
| 4758 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4759 |
|
---|
[1021] | 4760 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4761 |
|
---|
[1021] | 4762 | exporter->SetWireframe();
|
---|
[482] | 4763 |
|
---|
[1021] | 4764 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4765 | exporter->ExportBox(tbox);
|
---|
| 4766 |
|
---|
| 4767 | exporter->SetFilled();
|
---|
[503] | 4768 |
|
---|
[1021] | 4769 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4770 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4771 |
|
---|
[1021] | 4772 | //exporter->ResetForcedMaterial();
|
---|
| 4773 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4774 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4775 |
|
---|
[1021] | 4776 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4777 | exporter->ExportGeometry(objects);
|
---|
[547] | 4778 |
|
---|
[1021] | 4779 | delete exporter;
|
---|
[482] | 4780 | }
|
---|
[1021] | 4781 | }
|
---|
[482] | 4782 |
|
---|
[547] | 4783 |
|
---|
[1021] | 4784 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4785 | ViewCellContainer &viewCells) const
|
---|
| 4786 | {
|
---|
| 4787 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4788 | }
|
---|
| 4789 |
|
---|
| 4790 |
|
---|
[1021] | 4791 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4792 | const Vector3 &termination,
|
---|
| 4793 | ViewCellContainer &viewcells)
|
---|
| 4794 | {
|
---|
| 4795 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4796 | }
|
---|
| 4797 |
|
---|
| 4798 |
|
---|
[979] | 4799 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4800 | {
|
---|
| 4801 | int numSamples;
|
---|
[1161] | 4802 |
|
---|
[1004] | 4803 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4804 | cout << "samples" << numSamples << endl;
|
---|
| 4805 |
|
---|
| 4806 | vector<RenderCostSample> samples;
|
---|
| 4807 |
|
---|
[1145] | 4808 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4809 | return;
|
---|
| 4810 |
|
---|
[1145] | 4811 | //start the view point queries
|
---|
[979] | 4812 | long startTime = GetTime();
|
---|
| 4813 | cout << "starting sampling of render cost ... ";
|
---|
| 4814 |
|
---|
[1145] | 4815 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4816 |
|
---|
| 4817 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4818 |
|
---|
| 4819 |
|
---|
[1161] | 4820 | // for each sample:
|
---|
| 4821 | // find view cells associated with the samples
|
---|
| 4822 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 4823 | //
|
---|
[1161] | 4824 | // for each view cell:
|
---|
| 4825 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4826 | // export geometry with color coded pvs difference
|
---|
| 4827 |
|
---|
| 4828 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4829 |
|
---|
[979] | 4830 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4831 |
|
---|
[1161] | 4832 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4833 | {
|
---|
| 4834 | RenderCostSample sample = *rit;
|
---|
| 4835 |
|
---|
| 4836 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4837 |
|
---|
[1161] | 4838 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4839 |
|
---|
| 4840 | if (it == sampleMap.end())
|
---|
| 4841 | {
|
---|
| 4842 | sampleMap[vc] = sample.mPvs;
|
---|
| 4843 | }
|
---|
| 4844 | else
|
---|
| 4845 | {
|
---|
[1740] | 4846 | (*it).second.MergeInPlace(sample.mPvs);
|
---|
[1161] | 4847 | }
|
---|
| 4848 | }
|
---|
| 4849 |
|
---|
| 4850 | // visualize the view cells
|
---|
| 4851 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4852 |
|
---|
| 4853 | Material m;//= RandomMaterial();
|
---|
| 4854 |
|
---|
| 4855 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4856 | {
|
---|
| 4857 | ViewCell *vc = (*vit).first;
|
---|
| 4858 |
|
---|
| 4859 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4860 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4861 |
|
---|
[1168] | 4862 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4863 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4864 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 4865 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 4866 |
|
---|
[1415] | 4867 | /* // counting the pvss
|
---|
| 4868 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4869 | {
|
---|
| 4870 | RenderCostSample sample = *rit;
|
---|
| 4871 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 4872 |
|
---|
[1415] | 4873 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4874 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 4875 |
|
---|
[1415] | 4876 | DEL_PTR(hMesh);
|
---|
| 4877 | }
|
---|
| 4878 | */
|
---|
[979] | 4879 | }
|
---|
| 4880 | }
|
---|
| 4881 |
|
---|
| 4882 |
|
---|
[580] | 4883 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 4884 | ViewCell *vc,
|
---|
| 4885 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4886 | const AxisAlignedPlane *clipPlane
|
---|
| 4887 | ) const
|
---|
[482] | 4888 | {
|
---|
[660] | 4889 | if (clipPlane)
|
---|
[591] | 4890 | {
|
---|
[1047] | 4891 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4892 |
|
---|
[591] | 4893 | ViewCellContainer leaves;
|
---|
| 4894 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4895 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4896 |
|
---|
| 4897 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4898 | {
|
---|
| 4899 | BspNodeGeometry geom;
|
---|
| 4900 | BspNodeGeometry front;
|
---|
| 4901 | BspNodeGeometry back;
|
---|
| 4902 |
|
---|
[1551] | 4903 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 4904 |
|
---|
[1052] | 4905 | const float eps = 0.0001f;
|
---|
[1047] | 4906 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4907 |
|
---|
[710] | 4908 | if (cf == -1)
|
---|
[682] | 4909 | {
|
---|
| 4910 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4911 | }
|
---|
[710] | 4912 | else if (cf == 0)
|
---|
[684] | 4913 | {
|
---|
[682] | 4914 | geom.SplitGeometry(front,
|
---|
| 4915 | back,
|
---|
[1047] | 4916 | plane,
|
---|
[682] | 4917 | mViewSpaceBox,
|
---|
[710] | 4918 | eps);
|
---|
[801] | 4919 |
|
---|
[683] | 4920 | if (back.Valid())
|
---|
| 4921 | {
|
---|
[682] | 4922 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4923 | }
|
---|
[684] | 4924 | }
|
---|
[591] | 4925 | }
|
---|
| 4926 | }
|
---|
| 4927 | else
|
---|
| 4928 | {
|
---|
[801] | 4929 | // export mesh if available
|
---|
[1001] | 4930 | // TODO: some bug here?
|
---|
[1563] | 4931 | if (1 && vc->GetMesh())
|
---|
[801] | 4932 | {
|
---|
| 4933 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4934 | }
|
---|
| 4935 | else
|
---|
[1001] | 4936 | {
|
---|
[801] | 4937 | BspNodeGeometry geom;
|
---|
| 4938 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4939 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4940 | }
|
---|
[591] | 4941 | }
|
---|
[482] | 4942 | }
|
---|
| 4943 |
|
---|
| 4944 |
|
---|
| 4945 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4946 | {
|
---|
[580] | 4947 | ViewCellContainer leaves;
|
---|
| 4948 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4949 |
|
---|
| 4950 | int maxDist = 0;
|
---|
[580] | 4951 |
|
---|
[482] | 4952 | // compute max height difference
|
---|
[580] | 4953 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4954 | {
|
---|
[580] | 4955 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4956 | {
|
---|
[1551] | 4957 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 4958 |
|
---|
[1001] | 4959 | if (i != j)
|
---|
| 4960 | {
|
---|
[1551] | 4961 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 4962 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 4963 |
|
---|
| 4964 | if (dist > maxDist)
|
---|
| 4965 | maxDist = dist;
|
---|
| 4966 | }
|
---|
[482] | 4967 | }
|
---|
| 4968 | }
|
---|
[580] | 4969 |
|
---|
[492] | 4970 | return maxDist;
|
---|
| 4971 | }
|
---|
[482] | 4972 |
|
---|
[492] | 4973 |
|
---|
[879] | 4974 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4975 | {
|
---|
[1021] | 4976 | if (!ViewCellsConstructed())
|
---|
[508] | 4977 | return NULL;
|
---|
[572] | 4978 |
|
---|
| 4979 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4980 | return NULL;
|
---|
| 4981 |
|
---|
[879] | 4982 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4983 | }
|
---|
[503] | 4984 |
|
---|
| 4985 |
|
---|
| 4986 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4987 | {
|
---|
| 4988 | BspNodeGeometry geom;
|
---|
[590] | 4989 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4990 |
|
---|
[1001] | 4991 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4992 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4993 |
|
---|
[503] | 4994 | vc->SetMesh(mesh);
|
---|
| 4995 | }
|
---|
[508] | 4996 |
|
---|
| 4997 |
|
---|
[532] | 4998 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4999 | {
|
---|
[535] | 5000 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 5001 | }
|
---|
[551] | 5002 |
|
---|
| 5003 |
|
---|
[587] | 5004 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5005 | const bool createMesh)
|
---|
[551] | 5006 | {
|
---|
| 5007 | float area = 0;
|
---|
| 5008 | float volume = 0;
|
---|
| 5009 |
|
---|
[580] | 5010 | ViewCellContainer leaves;
|
---|
[582] | 5011 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 5012 |
|
---|
| 5013 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5014 |
|
---|
[693] | 5015 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 5016 | {
|
---|
| 5017 | BspNodeGeometry geom;
|
---|
[1551] | 5018 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 5019 |
|
---|
[719] | 5020 | const float lVol = geom.GetVolume();
|
---|
| 5021 | const float lArea = geom.GetArea();
|
---|
[693] | 5022 |
|
---|
| 5023 | area += lArea;
|
---|
| 5024 | volume += lVol;
|
---|
| 5025 |
|
---|
[1616] | 5026 | if (createMesh)
|
---|
| 5027 | CreateMesh(*it);
|
---|
[551] | 5028 | }
|
---|
| 5029 |
|
---|
| 5030 | viewCell->SetVolume(volume);
|
---|
| 5031 | viewCell->SetArea(area);
|
---|
[563] | 5032 | }
|
---|
[575] | 5033 |
|
---|
| 5034 |
|
---|
[693] | 5035 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 5036 | {
|
---|
| 5037 | ViewCellContainer leaves;
|
---|
| 5038 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5039 |
|
---|
| 5040 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5041 |
|
---|
| 5042 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 5043 | float subdivVol = 0;
|
---|
| 5044 | float newVol = 0;
|
---|
| 5045 |
|
---|
| 5046 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5047 | {
|
---|
| 5048 | BspNodeGeometry geom;
|
---|
[1551] | 5049 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 5050 |
|
---|
| 5051 | const float lVol = geom.GetVolume();
|
---|
| 5052 |
|
---|
| 5053 | newVol += lVol;
|
---|
| 5054 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 5055 |
|
---|
[704] | 5056 | float thres = 0.9f;
|
---|
[697] | 5057 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 5058 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 5059 | }
|
---|
| 5060 |
|
---|
| 5061 | Debug << "exact volume: " << vol << endl;
|
---|
| 5062 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 5063 | Debug << "new volume: " << newVol << endl;
|
---|
| 5064 | }
|
---|
| 5065 |
|
---|
| 5066 |
|
---|
[577] | 5067 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5068 | {
|
---|
| 5069 | // TODO: do I still need this here?
|
---|
[590] | 5070 | if (0)
|
---|
[693] | 5071 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 5072 | }
|
---|
[575] | 5073 |
|
---|
[1021] | 5074 |
|
---|
| 5075 |
|
---|
| 5076 | /**************************************************************************/
|
---|
[1047] | 5077 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 5078 | /**************************************************************************/
|
---|
| 5079 |
|
---|
| 5080 |
|
---|
[1740] | 5081 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, const string &hierarchyType)
|
---|
| 5082 | : ViewCellsManager(vcTree)
|
---|
| 5083 | {
|
---|
| 5084 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
| 5085 |
|
---|
| 5086 | mHierarchyManager = CreateHierarchyManager(hierarchyType);
|
---|
| 5087 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5088 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
| 5089 | }
|
---|
| 5090 |
|
---|
| 5091 |
|
---|
[1278] | 5092 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 5093 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 5094 | {
|
---|
[1640] | 5095 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
[1106] | 5096 |
|
---|
[1278] | 5097 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5098 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 5099 | }
|
---|
[859] | 5100 |
|
---|
[1743] | 5101 | Intersectable *
|
---|
| 5102 | VspOspViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
|
---|
| 5103 | {
|
---|
| 5104 | return mHierarchyManager->GetIntersectable(ray, isTermination);
|
---|
| 5105 | }
|
---|
[859] | 5106 |
|
---|
[1740] | 5107 | HierarchyManager *VspOspViewCellsManager::CreateHierarchyManager(const string &hierarchyType)
|
---|
| 5108 | {
|
---|
| 5109 | HierarchyManager *hierarchyManager;
|
---|
| 5110 |
|
---|
| 5111 | if (strcmp(hierarchyType.c_str(), "osp") == 0)
|
---|
| 5112 | {
|
---|
| 5113 | Debug << "hierarchy manager: osp" << endl;
|
---|
| 5114 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
| 5115 | }
|
---|
| 5116 | else if (strcmp(hierarchyType.c_str(), "bvh") == 0)
|
---|
| 5117 | {
|
---|
| 5118 | Debug << "hierarchy manager: bvh" << endl;
|
---|
| 5119 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
| 5120 | }
|
---|
| 5121 | else // only view space partition
|
---|
| 5122 | {
|
---|
| 5123 | Debug << "hierarchy manager: obj" << endl;
|
---|
| 5124 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
| 5125 | }
|
---|
| 5126 |
|
---|
| 5127 | return hierarchyManager;
|
---|
| 5128 | }
|
---|
| 5129 |
|
---|
| 5130 |
|
---|
[1021] | 5131 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 5132 | {
|
---|
[1740] | 5133 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 5134 | }
|
---|
| 5135 |
|
---|
| 5136 |
|
---|
| 5137 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 5138 | {
|
---|
| 5139 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 5140 | }
|
---|
| 5141 |
|
---|
| 5142 |
|
---|
| 5143 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 5144 | {
|
---|
| 5145 | // view cells tree constructed
|
---|
| 5146 | if (!ViewCellsTreeConstructed())
|
---|
| 5147 | {
|
---|
[1278] | 5148 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 5149 | }
|
---|
| 5150 | else
|
---|
| 5151 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 5152 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 5153 | }
|
---|
| 5154 | }
|
---|
| 5155 |
|
---|
| 5156 |
|
---|
| 5157 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 5158 | {
|
---|
[1278] | 5159 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 5160 | }
|
---|
| 5161 |
|
---|
| 5162 |
|
---|
| 5163 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 5164 | {
|
---|
| 5165 | return new VspViewCell(mesh);
|
---|
| 5166 | }
|
---|
| 5167 |
|
---|
| 5168 |
|
---|
| 5169 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 5170 | const VssRayContainer &rays)
|
---|
| 5171 | {
|
---|
| 5172 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 5173 |
|
---|
[1074] | 5174 | // skip rest if view cells were already constructed
|
---|
[1021] | 5175 | if (ViewCellsConstructed())
|
---|
| 5176 | return 0;
|
---|
| 5177 |
|
---|
| 5178 | int sampleContributions = 0;
|
---|
| 5179 | VssRayContainer sampleRays;
|
---|
| 5180 |
|
---|
| 5181 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 5182 |
|
---|
| 5183 | VssRayContainer constructionRays;
|
---|
| 5184 | VssRayContainer savedRays;
|
---|
| 5185 |
|
---|
| 5186 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 5187 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 5188 |
|
---|
| 5189 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 5190 |
|
---|
[1421] | 5191 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 5192 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 5193 |
|
---|
[1293] | 5194 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 5195 |
|
---|
[1576] | 5196 | #if TEST_EVALUATION
|
---|
| 5197 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 5198 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 5199 | {
|
---|
| 5200 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 5201 | }
|
---|
| 5202 | #endif
|
---|
| 5203 |
|
---|
[1545] | 5204 | /////////////////////////
|
---|
[1444] | 5205 | //-- print satistics for subdivision and view cells
|
---|
| 5206 |
|
---|
[1421] | 5207 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 5208 |
|
---|
[1444] | 5209 | ResetViewCells();
|
---|
| 5210 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 5211 |
|
---|
[1545] | 5212 | //////////////
|
---|
[1444] | 5213 | //-- recast rest of rays
|
---|
| 5214 |
|
---|
[1286] | 5215 | const long startTime = GetTime();
|
---|
[1021] | 5216 | cout << "Computing remaining ray contributions ... ";
|
---|
| 5217 |
|
---|
| 5218 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 5219 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 5220 |
|
---|
[1415] | 5221 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 5222 | << " secs" << endl;
|
---|
| 5223 |
|
---|
| 5224 | if (0)
|
---|
[1545] | 5225 | { // real meshes are constructed at this stage
|
---|
[1021] | 5226 | cout << "finalizing view cells ... ";
|
---|
| 5227 | FinalizeViewCells(true);
|
---|
| 5228 | cout << "finished" << endl;
|
---|
| 5229 | }
|
---|
| 5230 |
|
---|
| 5231 | return sampleContributions;
|
---|
| 5232 | }
|
---|
| 5233 |
|
---|
| 5234 |
|
---|
| 5235 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 5236 | const VssRayContainer &rays)
|
---|
| 5237 | {
|
---|
| 5238 | if (!ViewCellsConstructed())
|
---|
| 5239 | {
|
---|
| 5240 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 5241 | return 0;
|
---|
| 5242 | }
|
---|
| 5243 |
|
---|
[1418] | 5244 | // if view cells were already constructed before post processing step
|
---|
| 5245 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 5246 | if (mViewCellsFinished)
|
---|
| 5247 | {
|
---|
| 5248 | FinalizeViewCells(true);
|
---|
| 5249 | EvaluateViewCellsStats();
|
---|
| 5250 |
|
---|
| 5251 | return 0;
|
---|
| 5252 | }
|
---|
| 5253 |
|
---|
| 5254 | // check if new view cells turned invalid
|
---|
| 5255 | int minPvs, maxPvs;
|
---|
| 5256 |
|
---|
| 5257 | if (0)
|
---|
| 5258 | {
|
---|
| 5259 | minPvs = mMinPvsSize;
|
---|
| 5260 | maxPvs = mMaxPvsSize;
|
---|
| 5261 | }
|
---|
| 5262 | else
|
---|
| 5263 | {
|
---|
[1414] | 5264 | // problem matt: why did I start here from zero?
|
---|
| 5265 | minPvs = 0;
|
---|
[1021] | 5266 | maxPvs = mMaxPvsSize;
|
---|
| 5267 | }
|
---|
| 5268 |
|
---|
| 5269 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5270 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5271 |
|
---|
| 5272 | SetValidity(minPvs, maxPvs);
|
---|
| 5273 |
|
---|
| 5274 |
|
---|
[1414] | 5275 | // area is not up to date, has to be recomputed
|
---|
[1021] | 5276 | mTotalAreaValid = false;
|
---|
| 5277 | VssRayContainer postProcessRays;
|
---|
| 5278 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 5279 |
|
---|
| 5280 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 5281 |
|
---|
| 5282 |
|
---|
| 5283 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 5284 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 5285 | mViewCellsTree->SetRoot(root);
|
---|
| 5286 |
|
---|
[1696] | 5287 | //////////////////////////
|
---|
| 5288 | //-- update pvs up to the root of the hierarchy
|
---|
[1418] | 5289 |
|
---|
[1021] | 5290 | ObjectPvs pvs;
|
---|
| 5291 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5292 |
|
---|
[1414] | 5293 |
|
---|
[1418] | 5294 | //////////////////////
|
---|
[1021] | 5295 | //-- render simulation after merge + refine
|
---|
[1414] | 5296 |
|
---|
[1415] | 5297 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 5298 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5299 | SimulationStatistics ss;
|
---|
| 5300 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 5301 | cout << ss << endl;
|
---|
[1414] | 5302 |
|
---|
[1486] | 5303 |
|
---|
[1586] | 5304 | ///////////
|
---|
[1021] | 5305 | //-- compression
|
---|
[1262] | 5306 |
|
---|
[1021] | 5307 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 5308 | {
|
---|
[1586] | 5309 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 5310 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 5311 |
|
---|
[1021] | 5312 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 5313 |
|
---|
[1586] | 5314 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 5315 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5316 | }
|
---|
[1021] | 5317 |
|
---|
[1486] | 5318 | /////////////
|
---|
| 5319 | //-- some tasks still to do on the view cells:
|
---|
| 5320 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1696] | 5321 |
|
---|
[1021] | 5322 | if (1) FinalizeViewCells(true);
|
---|
| 5323 |
|
---|
| 5324 | return 0;
|
---|
[859] | 5325 | }
|
---|
| 5326 |
|
---|
[1021] | 5327 |
|
---|
| 5328 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5329 | {
|
---|
[1021] | 5330 | return VSP_OSP;
|
---|
| 5331 | }
|
---|
[859] | 5332 |
|
---|
[1021] | 5333 |
|
---|
| 5334 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5335 | {
|
---|
| 5336 | // terminate recursion
|
---|
| 5337 | if (root->IsLeaf())
|
---|
| 5338 | {
|
---|
| 5339 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5340 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5341 | return leaf->GetViewCell();
|
---|
| 5342 | }
|
---|
| 5343 |
|
---|
| 5344 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5345 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5346 |
|
---|
| 5347 | // evaluate merge cost for priority traversal
|
---|
[1713] | 5348 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1021] | 5349 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5350 |
|
---|
| 5351 | float volume = 0;
|
---|
| 5352 |
|
---|
| 5353 | VspNode *front = interior->GetFront();
|
---|
| 5354 | VspNode *back = interior->GetBack();
|
---|
| 5355 |
|
---|
| 5356 | ObjectPvs frontPvs, backPvs;
|
---|
| 5357 |
|
---|
[1545] | 5358 | /////////
|
---|
[1021] | 5359 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5360 |
|
---|
[1021] | 5361 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5362 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5363 |
|
---|
| 5364 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5365 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5366 |
|
---|
| 5367 | volume += backVc->GetVolume();
|
---|
| 5368 | volume += frontVc->GetVolume();
|
---|
| 5369 |
|
---|
| 5370 | viewCellInterior->SetVolume(volume);
|
---|
| 5371 |
|
---|
| 5372 | return viewCellInterior;
|
---|
| 5373 | }
|
---|
| 5374 |
|
---|
| 5375 |
|
---|
| 5376 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5377 | {
|
---|
| 5378 | if (!ViewCellsConstructed())
|
---|
| 5379 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5380 |
|
---|
| 5381 | // TODO: set reasonable limit
|
---|
| 5382 | const int limit = 20;
|
---|
| 5383 |
|
---|
| 5384 | for (int i = 0; i < limit; ++ i)
|
---|
| 5385 | {
|
---|
| 5386 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5387 |
|
---|
[1278] | 5388 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5389 | {
|
---|
| 5390 | return true;
|
---|
| 5391 | }
|
---|
[904] | 5392 | }
|
---|
[859] | 5393 |
|
---|
[1021] | 5394 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5395 | return false;
|
---|
[884] | 5396 | }
|
---|
| 5397 |
|
---|
| 5398 |
|
---|
[1027] | 5399 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5400 | ViewCell *vc,
|
---|
[1416] | 5401 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5402 | const AxisAlignedPlane *clipPlane
|
---|
| 5403 | ) const
|
---|
[1027] | 5404 | {
|
---|
| 5405 | ViewCellContainer leaves;
|
---|
| 5406 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5407 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5408 |
|
---|
[1047] | 5409 | Plane3 plane;
|
---|
| 5410 | if (clipPlane)
|
---|
[1418] | 5411 | {
|
---|
| 5412 | // arbitrary plane definition
|
---|
[1047] | 5413 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5414 | }
|
---|
[1047] | 5415 |
|
---|
[1027] | 5416 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5417 | {
|
---|
| 5418 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5419 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5420 |
|
---|
[1416] | 5421 | const AxisAlignedBox3 box =
|
---|
[1551] | 5422 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5423 |
|
---|
[1418] | 5424 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5425 | continue;
|
---|
| 5426 |
|
---|
[1047] | 5427 | if (clipPlane)
|
---|
| 5428 | {
|
---|
| 5429 | if (box.Side(plane) == -1)
|
---|
[1144] | 5430 | {
|
---|
[1047] | 5431 | exporter->ExportBox(box);
|
---|
[1144] | 5432 | }
|
---|
[1047] | 5433 | else if (box.Side(plane) == 0)
|
---|
| 5434 | {
|
---|
[1418] | 5435 | // intersection
|
---|
[1047] | 5436 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5437 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5438 | exporter->ExportBox(bbox);
|
---|
| 5439 | }
|
---|
| 5440 | }
|
---|
| 5441 | else
|
---|
| 5442 | {
|
---|
[1027] | 5443 | exporter->ExportBox(box);
|
---|
[1047] | 5444 | }
|
---|
[1027] | 5445 | }
|
---|
| 5446 | }
|
---|
| 5447 |
|
---|
| 5448 |
|
---|
[1021] | 5449 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5450 | {
|
---|
| 5451 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5452 | // validy update in preprocessor for all managers)
|
---|
| 5453 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5454 |
|
---|
[1021] | 5455 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5456 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5457 | }
|
---|
| 5458 |
|
---|
| 5459 |
|
---|
| 5460 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5461 | const VssRayContainer &sampleRays)
|
---|
[859] | 5462 | {
|
---|
[997] | 5463 | if (!ViewCellsConstructed())
|
---|
| 5464 | return;
|
---|
[1027] | 5465 |
|
---|
[1021] | 5466 | VssRayContainer visRays;
|
---|
| 5467 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5468 |
|
---|
[1633] | 5469 | ////////////
|
---|
| 5470 | //-- export final view cells
|
---|
[1106] | 5471 |
|
---|
[1633] | 5472 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5473 |
|
---|
| 5474 | if (exporter)
|
---|
| 5475 | {
|
---|
[1415] | 5476 | // hack color code (show pvs size)
|
---|
[1021] | 5477 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5478 | mColorCode = 0;
|
---|
[859] | 5479 |
|
---|
[1633] | 5480 | const long starttime = GetTime();
|
---|
| 5481 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[1420] | 5482 |
|
---|
[1633] | 5483 | // matt: hack for clamping scene
|
---|
| 5484 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
| 5485 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1703] | 5486 |
|
---|
[1633] | 5487 | if (CLAMP_TO_BOX)
|
---|
| 5488 | {
|
---|
| 5489 | exporter->SetWireframe();
|
---|
| 5490 | exporter->ExportBox(bbox);
|
---|
| 5491 | exporter->SetFilled();
|
---|
[1021] | 5492 | }
|
---|
| 5493 |
|
---|
[1633] | 5494 | if (0 && mExportGeometry)
|
---|
| 5495 | {
|
---|
| 5496 | exporter->ExportGeometry(objects, true, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5497 | }
|
---|
| 5498 |
|
---|
| 5499 | if (1 && mExportRays)
|
---|
| 5500 | {
|
---|
| 5501 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5502 | }
|
---|
| 5503 |
|
---|
[1703] | 5504 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter,
|
---|
| 5505 | objects, CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
[1633] | 5506 | ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, GetClipPlane());
|
---|
| 5507 |
|
---|
| 5508 | delete exporter;
|
---|
| 5509 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5510 | mColorCode = savedColorCode;
|
---|
| 5511 | }
|
---|
| 5512 |
|
---|
[1633] | 5513 | // export final object partition
|
---|
| 5514 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5515 |
|
---|
| 5516 | if (exporter)
|
---|
[1287] | 5517 | {
|
---|
[1633] | 5518 | const long starttime = GetTime();
|
---|
[1287] | 5519 |
|
---|
[1633] | 5520 | // matt: hack for making visualization smaller in size
|
---|
| 5521 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
| 5522 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1415] | 5523 |
|
---|
[1633] | 5524 | cout << "exporting object space hierarchy ... ";
|
---|
| 5525 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5526 |
|
---|
| 5527 | delete exporter;
|
---|
| 5528 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5529 | }
|
---|
[1633] | 5530 |
|
---|
[1121] | 5531 |
|
---|
[1633] | 5532 | // visualization of the view cells
|
---|
| 5533 | if (0) ExportMergedViewCells(objects);
|
---|
| 5534 |
|
---|
[1570] | 5535 | // export some view cell
|
---|
[1021] | 5536 | int leafOut;
|
---|
| 5537 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1570] | 5538 | const int raysOut = 100;
|
---|
[580] | 5539 |
|
---|
[1570] | 5540 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
| 5541 | }
|
---|
[1021] | 5542 |
|
---|
| 5543 |
|
---|
[1570] | 5544 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5545 | const int maxViewCells,
|
---|
| 5546 | const bool sortViewCells,
|
---|
| 5547 | const bool exportPvs,
|
---|
| 5548 | const bool exportRays,
|
---|
| 5549 | const int maxRays,
|
---|
| 5550 | const string prefix,
|
---|
| 5551 | VssRayContainer *visRays)
|
---|
| 5552 | {
|
---|
| 5553 | if (sortViewCells)
|
---|
[697] | 5554 | {
|
---|
[1415] | 5555 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1021] | 5556 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5557 | }
|
---|
| 5558 |
|
---|
[1570] | 5559 | ViewCell::NewMail();
|
---|
| 5560 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 5561 |
|
---|
[1570] | 5562 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 5563 |
|
---|
[1021] | 5564 | for (int i = 0; i < limit; ++ i)
|
---|
| 5565 | {
|
---|
| 5566 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5567 |
|
---|
| 5568 | // largest view cell pvs first of random view cell
|
---|
[1570] | 5569 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 5570 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5571 |
|
---|
[1570] | 5572 | if (vc->Mailed()) // already used
|
---|
| 5573 | continue;
|
---|
| 5574 |
|
---|
| 5575 | vc->Mail();
|
---|
| 5576 |
|
---|
[1021] | 5577 | ObjectPvs pvs;
|
---|
| 5578 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5579 |
|
---|
[1570] | 5580 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 5581 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5582 |
|
---|
[1709] | 5583 | cout << "view cell " << vc->GetId() << ": pvs cost=" << mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[1021] | 5584 |
|
---|
[1570] | 5585 | if (exportPvs)
|
---|
| 5586 | {
|
---|
| 5587 | Material m;
|
---|
[1418] | 5588 |
|
---|
[1570] | 5589 | Intersectable::NewMail();
|
---|
| 5590 |
|
---|
[1742] | 5591 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 5592 |
|
---|
[1570] | 5593 | // output PVS of view cell
|
---|
[1742] | 5594 | while (pit.HasMoreEntries())
|
---|
[1570] | 5595 | {
|
---|
[1742] | 5596 | ObjectPvsEntry entry = pit.Next();
|
---|
| 5597 |
|
---|
| 5598 | Intersectable *intersect = entry.mObject;
|
---|
| 5599 |
|
---|
[1570] | 5600 | if (!intersect->Mailed())
|
---|
| 5601 | {
|
---|
| 5602 | m = RandomMaterial();
|
---|
| 5603 | exporter->SetForcedMaterial(m);
|
---|
| 5604 |
|
---|
| 5605 | exporter->ExportIntersectable(intersect);
|
---|
| 5606 | intersect->Mail();
|
---|
| 5607 | }
|
---|
| 5608 | }
|
---|
| 5609 | }
|
---|
| 5610 |
|
---|
| 5611 | if (exportRays)
|
---|
[1021] | 5612 | {
|
---|
[1570] | 5613 | ////////////
|
---|
| 5614 | //-- export the sample rays
|
---|
| 5615 |
|
---|
[1021] | 5616 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 5617 | VssRayContainer vcRays;
|
---|
| 5618 | VssRayContainer collectRays;
|
---|
[1021] | 5619 |
|
---|
[1570] | 5620 | // collect intial view cells
|
---|
| 5621 | ViewCellContainer leaves;
|
---|
| 5622 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 5623 |
|
---|
[1570] | 5624 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 5625 |
|
---|
[1570] | 5626 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5627 | {
|
---|
| 5628 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5629 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5630 |
|
---|
| 5631 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 5632 | {
|
---|
[1570] | 5633 | collectRays.push_back(*rit);
|
---|
[1021] | 5634 | }
|
---|
[1570] | 5635 | }
|
---|
[1021] | 5636 |
|
---|
[1570] | 5637 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 5638 |
|
---|
[1570] | 5639 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 5640 |
|
---|
[1570] | 5641 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5642 | {
|
---|
| 5643 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5644 |
|
---|
| 5645 | if (p < raysOut)
|
---|
| 5646 | vcRays.push_back(*rit);
|
---|
[1021] | 5647 | }
|
---|
[1570] | 5648 |
|
---|
| 5649 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 5650 | }
|
---|
[1570] | 5651 |
|
---|
| 5652 |
|
---|
[1415] | 5653 | /////////////////
|
---|
[1021] | 5654 | //-- export view cell geometry
|
---|
[1121] | 5655 |
|
---|
[697] | 5656 | exporter->SetWireframe();
|
---|
| 5657 |
|
---|
[1416] | 5658 | Material m;
|
---|
[1021] | 5659 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5660 | exporter->SetForcedMaterial(m);
|
---|
| 5661 |
|
---|
[1416] | 5662 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5663 | exporter->SetFilled();
|
---|
| 5664 |
|
---|
[1021] | 5665 | DEL_PTR(exporter);
|
---|
| 5666 | cout << "finished" << endl;
|
---|
[697] | 5667 | }
|
---|
[1021] | 5668 |
|
---|
[1570] | 5669 | cout << endl;
|
---|
[697] | 5670 | }
|
---|
| 5671 |
|
---|
| 5672 |
|
---|
[1021] | 5673 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5674 | ViewCellContainer &viewCells) const
|
---|
| 5675 | {
|
---|
[1278] | 5676 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5677 | }
|
---|
[580] | 5678 |
|
---|
[1021] | 5679 |
|
---|
| 5680 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5681 | const Vector3 &termination,
|
---|
| 5682 | ViewCellContainer &viewcells)
|
---|
| 5683 | {
|
---|
[1278] | 5684 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5685 | }
|
---|
| 5686 |
|
---|
| 5687 |
|
---|
| 5688 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5689 | const bool exportPvs,
|
---|
| 5690 | const ObjectContainer &objects)
|
---|
| 5691 | {
|
---|
| 5692 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5693 | return false;
|
---|
| 5694 |
|
---|
[1415] | 5695 | const long starttime = GetTime();
|
---|
[1021] | 5696 | cout << "exporting view cells to xml ... ";
|
---|
| 5697 |
|
---|
[1201] | 5698 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5699 |
|
---|
| 5700 | // for output we need unique ids for each view cell
|
---|
| 5701 | CreateUniqueViewCellIds();
|
---|
| 5702 |
|
---|
| 5703 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5704 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5705 |
|
---|
[1580] | 5706 | if (exportPvs)
|
---|
| 5707 | {
|
---|
| 5708 | ///////////////
|
---|
| 5709 | //-- export bounding boxes
|
---|
| 5710 | //-- The bounding boxes are used to identify
|
---|
| 5711 | //-- the objects in the rendering engine
|
---|
[1614] | 5712 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 5713 | }
|
---|
[1021] | 5714 |
|
---|
[1415] | 5715 | //////////////////////////
|
---|
[1021] | 5716 | //-- export the view cells and the pvs
|
---|
| 5717 |
|
---|
| 5718 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5719 |
|
---|
| 5720 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5721 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5722 | stream << "</ViewCells>" << endl;
|
---|
| 5723 |
|
---|
[1415] | 5724 | //////////////////////
|
---|
[1201] | 5725 | //-- export the view space hierarchy
|
---|
[1021] | 5726 |
|
---|
[1262] | 5727 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5728 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5729 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5730 |
|
---|
[1278] | 5731 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5732 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5733 |
|
---|
[1415] | 5734 | //////////////////////
|
---|
[1201] | 5735 | //-- export the object space partition
|
---|
| 5736 |
|
---|
[1278] | 5737 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5738 |
|
---|
[1201] | 5739 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5740 | stream.close();
|
---|
[1201] | 5741 |
|
---|
[1415] | 5742 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5743 | return true;
|
---|
| 5744 | }
|
---|
| 5745 |
|
---|
| 5746 |
|
---|
| 5747 |
|
---|
[1027] | 5748 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5749 | const bool active) const
|
---|
[1021] | 5750 | {
|
---|
| 5751 | if (!ViewCellsConstructed())
|
---|
| 5752 | return NULL;
|
---|
[1588] | 5753 |
|
---|
[1021] | 5754 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5755 | return NULL;
|
---|
[1588] | 5756 |
|
---|
[1278] | 5757 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5758 | }
|
---|
| 5759 |
|
---|
| 5760 |
|
---|
| 5761 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5762 | {
|
---|
| 5763 | // matt: TODO
|
---|
| 5764 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5765 |
|
---|
| 5766 | ViewCellContainer leaves;
|
---|
| 5767 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5768 |
|
---|
| 5769 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5770 |
|
---|
| 5771 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5772 | {
|
---|
[1551] | 5773 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 5774 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5775 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5776 | }
|
---|
| 5777 |
|
---|
[1021] | 5778 | vc->SetMesh(mesh);
|
---|
| 5779 | }
|
---|
| 5780 |
|
---|
| 5781 |
|
---|
| 5782 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5783 | {
|
---|
| 5784 | // matt: TODO
|
---|
| 5785 | return 0;
|
---|
| 5786 | }
|
---|
| 5787 |
|
---|
| 5788 |
|
---|
[1667] | 5789 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
[1021] | 5790 | {
|
---|
| 5791 | float area = 0;
|
---|
| 5792 | float volume = 0;
|
---|
| 5793 |
|
---|
| 5794 | ViewCellContainer leaves;
|
---|
| 5795 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5796 |
|
---|
| 5797 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5798 |
|
---|
| 5799 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5800 | {
|
---|
[1551] | 5801 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 5802 |
|
---|
[1278] | 5803 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 5804 |
|
---|
[1027] | 5805 | const float lVol = box.GetVolume();
|
---|
| 5806 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5807 |
|
---|
| 5808 | area += lArea;
|
---|
| 5809 | volume += lVol;
|
---|
| 5810 |
|
---|
| 5811 | CreateMesh(*it);
|
---|
[580] | 5812 | }
|
---|
| 5813 |
|
---|
[1021] | 5814 | viewCell->SetVolume(volume);
|
---|
| 5815 | viewCell->SetArea(area);
|
---|
[580] | 5816 | }
|
---|
[1021] | 5817 |
|
---|
[580] | 5818 |
|
---|
[1159] | 5819 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5820 | const bool addRays,
|
---|
| 5821 | const bool storeViewCells)
|
---|
| 5822 | {
|
---|
| 5823 | ViewCellContainer viewcells;
|
---|
| 5824 |
|
---|
| 5825 | ray.mPvsContribution = 0;
|
---|
| 5826 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5827 |
|
---|
| 5828 | static Ray hray;
|
---|
| 5829 | hray.Init(ray);
|
---|
| 5830 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5831 | //Ray hray(ray);
|
---|
| 5832 |
|
---|
| 5833 | float tmin = 0, tmax = 1.0;
|
---|
| 5834 |
|
---|
| 5835 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5836 | return 0;
|
---|
| 5837 |
|
---|
| 5838 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5839 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5840 |
|
---|
[1291] | 5841 | ViewCell::NewMail();
|
---|
| 5842 |
|
---|
[1159] | 5843 | // traverse the view space subdivision
|
---|
| 5844 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5845 |
|
---|
| 5846 | if (storeViewCells)
|
---|
[1291] | 5847 | {
|
---|
| 5848 | // copy viewcells memory efficiently
|
---|
[1159] | 5849 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5850 | ray.mViewCells = viewcells;
|
---|
| 5851 | }
|
---|
| 5852 |
|
---|
| 5853 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5854 |
|
---|
| 5855 | for (; it != viewcells.end(); ++ it)
|
---|
| 5856 | {
|
---|
| 5857 | ViewCell *viewcell = *it;
|
---|
[1666] | 5858 |
|
---|
[1159] | 5859 | if (viewcell->GetValid())
|
---|
[1566] | 5860 | { // if ray not outside of view space
|
---|
[1159] | 5861 | float contribution;
|
---|
| 5862 |
|
---|
| 5863 | if (ray.mTerminationObject)
|
---|
| 5864 | {
|
---|
[1666] | 5865 | // todo: maybe not correct for kd node pvs
|
---|
| 5866 | Intersectable *obj = mHierarchyManager->GetIntersectable(ray, true);
|
---|
| 5867 |
|
---|
| 5868 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 5869 | ray.mPdf,
|
---|
| 5870 | contribution))
|
---|
[1159] | 5871 | {
|
---|
[1666] | 5872 | ++ ray.mPvsContribution;
|
---|
[1159] | 5873 | }
|
---|
[1666] | 5874 |
|
---|
| 5875 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5876 | }
|
---|
[1666] | 5877 |
|
---|
[1686] | 5878 | ////////////////
|
---|
[1666] | 5879 | //-- for directional sampling it is important to count only contributions
|
---|
| 5880 | //-- made in one direction!
|
---|
| 5881 | //-- the other contributions of this sample will be counted for the opposite ray!
|
---|
[1166] | 5882 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1159] | 5883 | if (ray.mOriginObject &&
|
---|
| 5884 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
[1666] | 5885 | ray.mPdf,
|
---|
| 5886 | contribution))
|
---|
[1159] | 5887 | {
|
---|
| 5888 | ++ ray.mPvsContribution;
|
---|
[1582] | 5889 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5890 | }
|
---|
| 5891 | #endif
|
---|
| 5892 | }
|
---|
| 5893 | }
|
---|
| 5894 |
|
---|
[1259] | 5895 | if (!addRays)
|
---|
[1566] | 5896 | {
|
---|
[1259] | 5897 | return ray.mRelativePvsContribution;
|
---|
[1566] | 5898 | }
|
---|
[1259] | 5899 |
|
---|
| 5900 | // sampled objects are stored in the pvs
|
---|
| 5901 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 5902 | {
|
---|
[1259] | 5903 | ViewCell *viewCell = *it;
|
---|
[1159] | 5904 |
|
---|
[1259] | 5905 | if (!viewCell->GetValid())
|
---|
| 5906 | break;
|
---|
[1159] | 5907 |
|
---|
[1259] | 5908 | AddSampleToPvs(
|
---|
| 5909 | ray.mTerminationObject,
|
---|
| 5910 | ray.mTermination,
|
---|
| 5911 | viewCell,
|
---|
| 5912 | ray.mPdf,
|
---|
| 5913 | ray.mRelativePvsContribution);
|
---|
| 5914 |
|
---|
[1166] | 5915 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1168] | 5916 |
|
---|
[1259] | 5917 | AddSampleToPvs(
|
---|
| 5918 | ray.mOriginObject,
|
---|
| 5919 | ray.mOrigin,
|
---|
| 5920 | viewCell,
|
---|
| 5921 | ray.mPdf,
|
---|
| 5922 | ray.mRelativePvsContribution);
|
---|
| 5923 | #endif
|
---|
[1159] | 5924 | }
|
---|
| 5925 |
|
---|
[1715] | 5926 |
|
---|
| 5927 |
|
---|
| 5928 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 5929 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[1159] | 5930 | }
|
---|
| 5931 |
|
---|
| 5932 |
|
---|
[1259] | 5933 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 5934 | const Vector3 &hitPoint,
|
---|
| 5935 | ViewCell *vc,
|
---|
| 5936 | const float pdf,
|
---|
| 5937 | float &contribution) const
|
---|
| 5938 | {
|
---|
[1486] | 5939 | // The hierarchy manager decides about the type of sample cast
|
---|
[1278] | 5940 | return mHierarchyManager->AddSampleToPvs(obj, hitPoint, vc, pdf, contribution);
|
---|
[1259] | 5941 | }
|
---|
| 5942 |
|
---|
| 5943 |
|
---|
[1021] | 5944 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5945 | {
|
---|
| 5946 | // TODO
|
---|
| 5947 | }
|
---|
[580] | 5948 |
|
---|
[1201] | 5949 |
|
---|
| 5950 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5951 | ObjectContainer *objects,
|
---|
| 5952 | const bool finalizeViewCells,
|
---|
| 5953 | BoundingBoxConverter *bconverter)
|
---|
| 5954 |
|
---|
| 5955 | {
|
---|
| 5956 | ViewCellsManager *vm =
|
---|
| 5957 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 5958 | #if 0
|
---|
| 5959 | // insert scene objects in tree
|
---|
[1201] | 5960 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 5961 | #endif
|
---|
[1201] | 5962 | return vm;
|
---|
| 5963 | }
|
---|
| 5964 |
|
---|
[1737] | 5965 | void
|
---|
| 5966 | VspOspViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
|
---|
| 5967 | {
|
---|
| 5968 | mHierarchyManager->CollectObjects(box, objects);
|
---|
| 5969 | }
|
---|
[1692] | 5970 |
|
---|
[1737] | 5971 |
|
---|
[1709] | 5972 | #if 1
|
---|
[1180] | 5973 |
|
---|
[1686] | 5974 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5975 | {
|
---|
| 5976 | int samplesPerPass;
|
---|
| 5977 | int numSamples;
|
---|
| 5978 | int castSamples = 0;
|
---|
[1718] | 5979 | int oldSamples = 0;
|
---|
| 5980 | int samplesForStats;
|
---|
| 5981 | char statsPrefix[100];
|
---|
| 5982 | char suffix[100];
|
---|
[1713] | 5983 | int splitsStepSize;
|
---|
[1686] | 5984 |
|
---|
[1718] | 5985 |
|
---|
[1686] | 5986 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1718] | 5987 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1686] | 5988 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 5989 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[1718] | 5990 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.stepSize", splitsStepSize);
|
---|
| 5991 |
|
---|
| 5992 | Debug << "step size: " << splitsStepSize << endl;
|
---|
[1686] | 5993 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 5994 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 5995 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 5996 |
|
---|
[1718] | 5997 | // should directional sampling be used?
|
---|
| 5998 | bool dirSamples =
|
---|
| 5999 | (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
| 6000 |
|
---|
[1686] | 6001 | cout << "reseting pvs ... ";
|
---|
| 6002 |
|
---|
| 6003 | // reset pvs and start over from zero
|
---|
[1718] | 6004 | mViewCellsTree->ResetPvs();
|
---|
| 6005 |
|
---|
[1686] | 6006 | cout << "finished" << endl;
|
---|
| 6007 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 6008 |
|
---|
| 6009 | while (castSamples < numSamples)
|
---|
| 6010 | {
|
---|
| 6011 | ///////////////
|
---|
| 6012 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 6013 |
|
---|
[1718] | 6014 | VssRayContainer evaluationSamples;
|
---|
[1686] | 6015 | const int samplingType = mEvaluationSamplingType;
|
---|
| 6016 |
|
---|
| 6017 | long startTime = GetTime();
|
---|
| 6018 |
|
---|
| 6019 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 6020 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 6021 |
|
---|
| 6022 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 6023 |
|
---|
| 6024 | castSamples += samplesPerPass;
|
---|
| 6025 |
|
---|
| 6026 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1718] | 6027 |
|
---|
| 6028 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6029 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1718] | 6030 |
|
---|
| 6031 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6032 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 6033 |
|
---|
| 6034 | startTime = GetTime();
|
---|
| 6035 |
|
---|
| 6036 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 6037 |
|
---|
| 6038 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6039 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6040 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6041 |
|
---|
[1718] | 6042 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
| 6043 | {
|
---|
| 6044 | oldSamples += samplesForStats;
|
---|
[1686] | 6045 |
|
---|
[1718] | 6046 | ///////////
|
---|
| 6047 | //-- output stats
|
---|
[1686] | 6048 |
|
---|
[1718] | 6049 | sprintf(suffix, "-%09d-eval.log", castSamples);
|
---|
| 6050 | const string filename = string(statsPrefix) + string(suffix);
|
---|
[1710] | 6051 |
|
---|
[1718] | 6052 | startTime = GetTime();
|
---|
[1732] | 6053 |
|
---|
[1718] | 6054 | cout << "compute new statistics ... " << endl;
|
---|
[1710] | 6055 |
|
---|
[1718] | 6056 | ofstream ofstr(filename.c_str());
|
---|
| 6057 | mHierarchyManager->EvaluateSubdivision2(ofstr, splitsStepSize);
|
---|
| 6058 |
|
---|
| 6059 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6060 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1732] | 6061 | cout << "*************************************" << endl;
|
---|
| 6062 |
|
---|
[1718] | 6063 | Debug << "statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6064 |
|
---|
| 6065 | // only for debugging purpose
|
---|
[1732] | 6066 | if (0)
|
---|
[1718] | 6067 | {
|
---|
| 6068 | ViewCellContainer viewCells;
|
---|
| 6069 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), viewCells);
|
---|
| 6070 |
|
---|
| 6071 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
| 6072 | int pvsSize = 0;
|
---|
| 6073 |
|
---|
| 6074 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 6075 | {
|
---|
| 6076 | pvsSize += (*vit)->GetPvs().GetSize();
|
---|
| 6077 | }
|
---|
| 6078 |
|
---|
| 6079 | cout << "debug entries: " << pvsSize << ", memcost: " << (float)pvsSize * ObjectPvs::GetEntrySize() << endl;
|
---|
| 6080 | }
|
---|
| 6081 | }
|
---|
| 6082 |
|
---|
[1709] | 6083 | disposeRays(evaluationSamples, NULL);
|
---|
[1686] | 6084 | }
|
---|
[1718] | 6085 |
|
---|
[1686] | 6086 | }
|
---|
[1551] | 6087 | #endif
|
---|
[878] | 6088 | }
|
---|