[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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[1594] | 28 | // $$JB HACK
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[1771] | 29 | #define KD_PVS_AREA (1e-5f)
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[1486] | 30 |
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[1900] | 31 | #define USE_RAY_LENGTH_AS_CONTRIBUTION 0
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| 32 | #define DIST_WEIGHTED_CONTRIBUTION 1
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| 33 |
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[863] | 34 | namespace GtpVisibilityPreprocessor {
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[860] | 35 |
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| 36 |
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[712] | 37 | // HACK
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| 38 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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[1764] | 39 | //const static bool CLAMP_TO_BOX = false;
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| 40 | const static bool CLAMP_TO_BOX = true;
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[517] | 41 |
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[1705] | 42 |
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[1703] | 43 | int ViewCellsManager::sRenderCostEvaluationType = 0;
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| 44 |
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| 45 |
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[697] | 46 | template <typename T> class myless
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| 47 | {
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| 48 | public:
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| 49 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 50 | bool operator() (T v1, T v2) const
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| 51 | {
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| 52 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 53 | }
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| 54 | };
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| 55 |
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| 56 |
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[1264] | 57 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 58 | mRenderer(NULL),
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[574] | 59 | mInitialSamples(0),
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[440] | 60 | mConstructionSamples(0),
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| 61 | mPostProcessSamples(0),
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[470] | 62 | mVisualizationSamples(0),
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| 63 | mTotalAreaValid(false),
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[517] | 64 | mTotalArea(0.0f),
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[547] | 65 | mViewCellsFinished(false),
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[562] | 66 | mMaxPvsSize(9999999),
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[1686] | 67 | mMinPvsSize(0),
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[719] | 68 | mMaxPvsRatio(1.0),
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[1145] | 69 | mViewCellPvsIsUpdated(false),
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[1264] | 70 | mPreprocessor(NULL),
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[1545] | 71 | mViewCellsTree(viewCellsTree),
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| 72 | mUsePredefinedViewCells(false)
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[440] | 73 | {
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[542] | 74 | mViewSpaceBox.Initialize();
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[482] | 75 | ParseEnvironment();
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[580] | 76 |
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[1264] | 77 | mViewCellsTree->SetViewCellsManager(this);
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[440] | 78 | }
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| 79 |
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[517] | 80 |
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[1903] | 81 | int ViewCellsManager::CastPassSamples2(const int samplesPerPass, VssRayContainer &passSamples) const
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| 82 | {
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| 83 | long startTime = GetTime();
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| 84 |
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| 85 | SimpleRayContainer simpleRays;
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| 86 |
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| 87 | simpleRays.reserve(samplesPerPass);
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| 88 | passSamples.reserve(samplesPerPass * 2); // always creates double rays
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| 89 |
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| 90 | // create one third of each type
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| 91 | int castRays = 0;
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| 92 |
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| 93 | mMixtureDistribution->GenerateSamples(mSamplesPerPass, simpleRays);
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| 94 |
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| 95 | cout << "generated " << simpleRays.size() << " samples in "
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| 96 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 97 |
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| 98 | startTime = GetTime();
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| 99 |
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| 100 | // shoot simple ray and add it to importance samples
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| 101 | mPreprocessor->CastRays(simpleRays, passSamples, true);
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| 102 |
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| 103 | cout << "cast " << samplesPerPass << " samples in "
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| 104 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 105 |
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| 106 | mMixtureDistribution->ComputeContributions(passSamples);
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| 107 |
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| 108 | return (int)passSamples.size();
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| 109 | }
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| 110 |
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| 111 |
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[482] | 112 | void ViewCellsManager::ParseEnvironment()
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| 113 | {
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[503] | 114 | // visualization stuff
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[1761] | 115 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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[1004] | 116 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 117 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 118 |
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[1004] | 119 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 120 |
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[1004] | 121 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 122 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 123 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 124 |
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[1004] | 125 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 126 |
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[1004] | 127 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 128 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 129 |
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[1004] | 130 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 131 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 132 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 133 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 134 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 135 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 136 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 137 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[1703] | 138 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", sRenderCostEvaluationType);
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[710] | 139 |
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[1004] | 140 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 141 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1902] | 142 |
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| 143 | Environment::GetSingleton()->GetBoolValue("ViewCells.useKdPvs", mUseKdPvs);
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| 144 |
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[664] | 145 | char buf[100];
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[1004] | 146 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 147 |
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[1773] | 148 | // mix of sampling strategies
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[1916] | 149 | mStrategies.push_back(SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION);
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[1826] | 150 |
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[1916] | 151 | //mStrategies.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
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| 152 | //mStrategies.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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| 153 | //mStrategies.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
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| 154 |
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[1910] | 155 | //mStrategies.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
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| 156 |
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[1826] | 157 | Debug << "casting strategies: ";
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| 158 | for (int i = 0; i < (int)mStrategies.size(); ++ i)
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| 159 | Debug << mStrategies[i] << " ";
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| 160 | Debug << endl;
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| 161 |
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[1903] | 162 | // now decode distribution string
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| 163 | char buff[1024];
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| 164 | Environment::GetSingleton()->GetStringValue("RssPreprocessor.distributions", buff);
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| 165 |
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| 166 | mMixtureDistribution = new MixtureDistribution(*mPreprocessor);
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| 167 | mMixtureDistribution->Construct(buff);
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| 168 |
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| 169 |
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[1020] | 170 | // sampling type for view cells construction samples
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[1695] | 171 | if (strcmp(buf, "object") == 0)
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[722] | 172 | {
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[1695] | 173 | mSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 174 | }
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| 175 | else if (strcmp(buf, "box") == 0)
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| 176 | {
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[1520] | 177 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 178 | }
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[664] | 179 | else if (strcmp(buf, "directional") == 0)
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[722] | 180 | {
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[1520] | 181 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 182 | }
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[1020] | 183 | else if (strcmp(buf, "object_directional") == 0)
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| 184 | {
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[1520] | 185 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 186 | }
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[1695] | 187 | else if (strcmp(buf, "reverse_object") == 0)
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| 188 | {
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| 189 | mSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 190 | }
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[1022] | 191 | /*else if (strcmp(buf, "interior") == 0)
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| 192 | {
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| 193 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 194 | }*/
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[1020] | 195 | else
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| 196 | {
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[666] | 197 | Debug << "error! wrong sampling type" << endl;
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| 198 | exit(0);
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| 199 | }
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[660] | 200 |
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[1020] | 201 | // sampling type for evaluation samples
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[1004] | 202 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 203 |
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[1695] | 204 | if (strcmp(buf, "object") == 0)
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[722] | 205 | {
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[1695] | 206 | mEvaluationSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 207 | }
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| 208 | else if (strcmp(buf, "box") == 0)
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| 209 | {
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[1520] | 210 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 211 | }
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| 212 | else if (strcmp(buf, "directional") == 0)
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| 213 | {
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[1520] | 214 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 215 | }
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[1020] | 216 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 217 | {
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[1520] | 218 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 219 | }
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[1695] | 220 | else if (strcmp(buf, "reverse_object") == 0)
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| 221 | {
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| 222 | mEvaluationSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 223 | }
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[1022] | 224 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 225 | {
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[1520] | 226 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 227 | }*/
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[1020] | 228 | else
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| 229 | {
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[1695] | 230 | mEvaluationSamplingType = -1;
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[722] | 231 | Debug << "error! wrong sampling type" << endl;
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| 232 | exit(0);
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| 233 | }
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[503] | 234 |
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[1004] | 235 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 236 |
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[734] | 237 | if (strcmp(buf, "perobject") == 0)
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[728] | 238 | {
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[1703] | 239 | sRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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[728] | 240 | }
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[1703] | 241 | else if (strcmp(buf, "pertriangle") == 0)
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[728] | 242 | {
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[1703] | 243 | sRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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[728] | 244 | }
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| 245 | else
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| 246 | {
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| 247 | Debug << "error! wrong sampling type" << endl;
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| 248 | exit(0);
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| 249 | }
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| 250 |
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[1004] | 251 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 252 |
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[482] | 253 | if (strcmp(buf, "PVS") == 0)
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| 254 | mColorCode = 1;
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| 255 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 256 | mColorCode = 2;
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| 257 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 258 | mColorCode = 3;
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| 259 | else
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| 260 | mColorCode = 0;
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| 261 |
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[664] | 262 |
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[1418] | 263 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 264 | Debug << "color code: " << mColorCode << endl;
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| 265 |
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| 266 | Debug << "export rays: " << mExportRays << endl;
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| 267 | Debug << "export geometry: " << mExportGeometry << endl;
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| 268 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 269 |
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| 270 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 271 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 272 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 273 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 274 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 275 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 276 | Debug << "export to file: " << mExportViewCells << endl;
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| 277 |
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[801] | 278 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 279 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 280 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 281 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 282 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 283 | Debug << "sampling type: " << mSamplingType << endl;
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[1703] | 284 | Debug << "render cost evaluation type: " << sRenderCostEvaluationType << endl;
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[728] | 285 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 286 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 287 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 288 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 289 |
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| 290 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 291 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[1902] | 292 | Debug << "use kd pvs " << mUseKdPvs << endl;
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[664] | 293 | Debug << endl;
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[440] | 294 | }
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| 295 |
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[485] | 296 |
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[440] | 297 | ViewCellsManager::~ViewCellsManager()
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| 298 | {
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[1020] | 299 | // HACK: if view cells tree does not
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[1264] | 300 | // handle view cells, we have to do it here
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[1020] | 301 | // question: rather create view cells resource manager?
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[598] | 302 | if (!ViewCellsTreeConstructed())
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[1141] | 303 | {
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[598] | 304 | CLEAR_CONTAINER(mViewCells);
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[1141] | 305 | }
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[1696] | 306 | else
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| 307 | {
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| 308 | DEL_PTR(mViewCellsTree);
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| 309 | }
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[1903] | 310 |
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| 311 | DEL_PTR(mMixtureDistribution);
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[440] | 312 | }
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| 313 |
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[1903] | 314 |
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[1743] | 315 | Intersectable *
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| 316 | ViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
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| 317 | {
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[1902] | 318 | if (mUseKdPvs)
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| 319 | {
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| 320 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
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| 321 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(isTermination ?
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| 322 | ray.mTermination : ray.mOrigin,
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| 323 | area);
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| 324 | return GetPreprocessor()->mKdTree->GetOrCreateKdIntersectable(node);
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| 325 | }
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| 326 | else
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| 327 | {
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| 328 | return isTermination ? ray.mTerminationObject : ray.mOriginObject;
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| 329 | }
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[1743] | 330 | }
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[1221] | 331 |
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[1902] | 332 |
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[1737] | 333 | void
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| 334 | ViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
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| 335 | {
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| 336 | GetPreprocessor()->mKdTree->CollectObjects(box, objects);
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| 337 | }
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[1613] | 338 |
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[1221] | 339 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 340 | {
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| 341 | Mesh *m = vc->GetMesh();
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| 342 |
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[1563] | 343 | if (m)
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| 344 | {
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| 345 | m->ComputeBoundingBox();
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| 346 | return m->mBox;
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[859] | 347 | }
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[485] | 348 |
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[859] | 349 | AxisAlignedBox3 box;
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| 350 | box.Initialize();
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| 351 |
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| 352 | if (!vc->IsLeaf()) {
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| 353 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 354 |
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| 355 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 356 | for (; it != vci->mChildren.end(); ++it) {
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| 357 | box.Include(GetViewCellBox(*it));
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| 358 | }
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| 359 | }
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| 360 |
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| 361 | return box;
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| 362 | }
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| 363 |
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[693] | 364 |
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[574] | 365 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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[1768] | 366 | const vector<int> &strategies,
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| 367 | VssRayContainer &passSamples
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| 368 | ) const
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[527] | 369 | {
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[1633] | 370 | long startTime = GetTime();
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[564] | 371 |
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[1784] | 372 | SimpleRayContainer simpleRays;
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| 373 |
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| 374 | simpleRays.reserve(samplesPerPass);
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| 375 | passSamples.reserve(samplesPerPass * 2); // always creates double rays
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| 376 |
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[1701] | 377 | // create one third of each type
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[1765] | 378 | int castRays = 0;
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[1701] | 379 |
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[1765] | 380 | const int numRaysPerPass = samplesPerPass / (int)strategies.size();
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| 381 | vector<int>::const_iterator iit, iit_end = strategies.end();
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| 382 |
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| 383 | for (iit = strategies.begin(); iit != iit_end; ++ iit)
|
---|
| 384 | {
|
---|
[1772] | 385 | const int stype = *iit;
|
---|
[1765] | 386 | const int newRays =
|
---|
| 387 | mPreprocessor->GenerateRays(numRaysPerPass, stype, simpleRays);
|
---|
[1772] | 388 |
|
---|
[1765] | 389 | cout << "cast " << newRays << " rays of strategy " << stype << endl;
|
---|
| 390 | castRays += newRays;
|
---|
[1709] | 391 | }
|
---|
[1701] | 392 |
|
---|
[1784] | 393 | cout << "generated " << samplesPerPass << " samples in "
|
---|
| 394 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1221] | 395 |
|
---|
[1633] | 396 | startTime = GetTime();
|
---|
[1784] | 397 |
|
---|
[573] | 398 | // shoot simple ray and add it to importance samples
|
---|
[1520] | 399 | mPreprocessor->CastRays(simpleRays, passSamples, true);
|
---|
[1784] | 400 | cout << "cast " << samplesPerPass << " samples in "
|
---|
| 401 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[570] | 402 |
|
---|
[574] | 403 | return (int)passSamples.size();
|
---|
| 404 | }
|
---|
[570] | 405 |
|
---|
[574] | 406 |
|
---|
| 407 | /// helper function which destroys rays or copies them into the output ray container
|
---|
[639] | 408 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
[574] | 409 | {
|
---|
| 410 | cout << "disposing samples ... ";
|
---|
[582] | 411 | long startTime = GetTime();
|
---|
| 412 | int n = (int)rays.size();
|
---|
| 413 |
|
---|
[573] | 414 | if (outRays)
|
---|
[542] | 415 | {
|
---|
[574] | 416 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 417 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 418 | {
|
---|
| 419 | outRays->push_back(*it);
|
---|
| 420 | }
|
---|
[573] | 421 | }
|
---|
| 422 | else
|
---|
| 423 | {
|
---|
[639] | 424 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 425 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 426 | {
|
---|
| 427 | if (!(*it)->IsActive())
|
---|
| 428 | delete (*it);
|
---|
| 429 | }
|
---|
[573] | 430 | }
|
---|
[639] | 431 |
|
---|
[574] | 432 | cout << "finished" << endl;
|
---|
[582] | 433 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[573] | 434 | }
|
---|
[570] | 435 |
|
---|
| 436 |
|
---|
[573] | 437 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 438 | {
|
---|
| 439 | int numSamples = 0;
|
---|
[1077] | 440 |
|
---|
[573] | 441 | SimpleRayContainer simpleRays;
|
---|
[574] | 442 | VssRayContainer initialSamples;
|
---|
[540] | 443 |
|
---|
[1381] | 444 | // store pointer to preprocessor for further use during construction
|
---|
| 445 | mPreprocessor = preprocessor;
|
---|
| 446 |
|
---|
[1563] | 447 |
|
---|
[1381] | 448 | ///////////////////////////////////////////////////////
|
---|
| 449 | //-- Initial sampling for the construction of the view cell hierarchy.
|
---|
| 450 | //-- We use uniform sampling / box based sampling.
|
---|
| 451 |
|
---|
[752] | 452 | long startTime = GetTime();
|
---|
[1633] | 453 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
|
---|
[1414] | 454 |
|
---|
[1381] | 455 | // cast initial samples
|
---|
[1778] | 456 |
|
---|
| 457 | // mix of sampling strategies
|
---|
| 458 | vector<int>dummy;
|
---|
| 459 | //dummy.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 460 | //dummy.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 461 | //dummy.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 462 |
|
---|
[1773] | 463 | CastPassSamples(mInitialSamples, mStrategies, initialSamples);
|
---|
[1278] | 464 |
|
---|
[1221] | 465 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 466 |
|
---|
[573] | 467 | // construct view cells
|
---|
[752] | 468 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 469 |
|
---|
[727] | 470 | // initial samples count for overall samples ...
|
---|
[752] | 471 | numSamples += mInitialSamples;
|
---|
[542] | 472 |
|
---|
[574] | 473 | // rays can be passed or deleted
|
---|
[639] | 474 | disposeRays(initialSamples, outRays);
|
---|
[752] | 475 |
|
---|
| 476 | cout << "time needed for initial construction: "
|
---|
| 477 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 478 |
|
---|
| 479 | Debug << "time needed for initial construction: "
|
---|
| 480 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 481 |
|
---|
[1444] | 482 | // collect view cells and compute statistics
|
---|
| 483 | ResetViewCells();
|
---|
[752] | 484 |
|
---|
[1444] | 485 |
|
---|
| 486 | ///////////////////
|
---|
| 487 | //-- Initial hierarchy construction finished.
|
---|
[1381] | 488 | //-- We can do some stats and visualization
|
---|
| 489 |
|
---|
[1444] | 490 | if (0)
|
---|
[660] | 491 | {
|
---|
[1444] | 492 | //-- export initial view cell partition
|
---|
[1563] | 493 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
[1416] | 494 |
|
---|
[1414] | 495 | const string filename("viewcells.wrl");
|
---|
| 496 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
[712] | 497 |
|
---|
[660] | 498 | if (exporter)
|
---|
| 499 | {
|
---|
[1414] | 500 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
| 501 |
|
---|
[660] | 502 | if (mExportGeometry)
|
---|
[712] | 503 | {
|
---|
[660] | 504 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 505 | }
|
---|
[660] | 506 |
|
---|
[750] | 507 | exporter->SetWireframe();
|
---|
[1760] | 508 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[660] | 509 |
|
---|
| 510 | delete exporter;
|
---|
[712] | 511 | cout << "finished" << endl;
|
---|
[660] | 512 | }
|
---|
| 513 | }
|
---|
| 514 |
|
---|
[1381] | 515 |
|
---|
[1419] | 516 | //////////////////////
|
---|
[1381] | 517 | //-- Cast some more sampling after initial construction.
|
---|
| 518 | //-- The additional rays can be used to gain
|
---|
| 519 | //-- some more information before the bottom-up merge
|
---|
| 520 | //-- note: guided rays could be used for this task
|
---|
| 521 |
|
---|
[1414] | 522 | // time spent after construction of the initial partition
|
---|
[1381] | 523 | startTime = GetTime();
|
---|
[574] | 524 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[573] | 525 |
|
---|
| 526 | while (numSamples < n)
|
---|
| 527 | {
|
---|
[596] | 528 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 529 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 530 |
|
---|
[574] | 531 | VssRayContainer constructionSamples;
|
---|
| 532 |
|
---|
[727] | 533 | // cast new samples
|
---|
[574] | 534 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[1773] | 535 | mStrategies,
|
---|
[574] | 536 | constructionSamples);
|
---|
| 537 |
|
---|
| 538 | cout << "finished" << endl;
|
---|
| 539 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 540 |
|
---|
[727] | 541 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 542 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 543 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 544 |
|
---|
[574] | 545 | cout << "finished" << endl;
|
---|
| 546 |
|
---|
[639] | 547 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 548 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 549 | }
|
---|
[752] | 550 |
|
---|
[1563] | 551 | if (0)
|
---|
| 552 | {
|
---|
| 553 | ///////////////
|
---|
| 554 | //-- Get stats after the additional sampling step
|
---|
| 555 | //-- and before the bottom-up merge step
|
---|
[570] | 556 |
|
---|
[1563] | 557 | EvaluateViewCellsStats();
|
---|
| 558 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 559 | << mCurrentViewCellsStats << endl;
|
---|
| 560 |
|
---|
| 561 | mRenderer->RenderScene();
|
---|
| 562 | SimulationStatistics ss;
|
---|
| 563 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 564 |
|
---|
[1563] | 565 | Debug << ss << endl;
|
---|
| 566 | }
|
---|
[660] | 567 |
|
---|
[1416] | 568 | ////////////////////
|
---|
[1381] | 569 | //-- post processing of the initial construction
|
---|
| 570 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 571 | //-- We can additionally cast some post processing sample rays.
|
---|
| 572 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 573 |
|
---|
| 574 | VssRayContainer postProcessSamples;
|
---|
| 575 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 576 |
|
---|
[1773] | 577 | CastPassSamples(mPostProcessSamples, mStrategies, postProcessSamples);
|
---|
[1381] | 578 |
|
---|
| 579 | cout << "finished" << endl;
|
---|
[574] | 580 | cout << "starting post processing and visualization" << endl;
|
---|
| 581 |
|
---|
[1444] | 582 | // store view cells with rays for post processing?
|
---|
[574] | 583 | const bool storeViewCells = true;
|
---|
[605] | 584 |
|
---|
| 585 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 586 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 587 |
|
---|
[1381] | 588 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 589 |
|
---|
[1414] | 590 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 591 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 592 |
|
---|
[1414] | 593 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 594 | disposeRays(postProcessSamples, outRays);
|
---|
| 595 |
|
---|
[1749] | 596 |
|
---|
[1416] | 597 | ////////////////
|
---|
[1381] | 598 | //-- Evaluation of the resulting view cell partition.
|
---|
| 599 | //-- We cast a number of new samples and measure the render cost
|
---|
| 600 |
|
---|
[801] | 601 | if (mEvaluateViewCells)
|
---|
| 602 | {
|
---|
[1145] | 603 | EvalViewCellPartition();
|
---|
[801] | 604 | }
|
---|
[1749] | 605 |
|
---|
[1416] | 606 | /////////////////
|
---|
[1769] | 607 | //-- Show some visualizations
|
---|
[1381] | 608 |
|
---|
[666] | 609 | if (mShowVisualization)
|
---|
| 610 | {
|
---|
[1769] | 611 | if (0)
|
---|
| 612 | {
|
---|
[1773] | 613 | mStrategies.clear();
|
---|
| 614 | mStrategies.push_back(SamplingStrategy::VIEWCELL_BORDER_BASED_DISTRIBUTION);
|
---|
[1769] | 615 | }
|
---|
| 616 |
|
---|
[1633] | 617 | ///////////////
|
---|
[1381] | 618 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[1633] | 619 |
|
---|
| 620 | VssRayContainer visSamples;
|
---|
| 621 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
[1773] | 622 | mStrategies,
|
---|
[1633] | 623 | visSamples);
|
---|
[574] | 624 |
|
---|
[666] | 625 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[1633] | 626 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
[574] | 627 |
|
---|
[1444] | 628 | // various visualizations
|
---|
[1633] | 629 | Visualize(preprocessor->mObjects, visSamples);
|
---|
[574] | 630 |
|
---|
[1633] | 631 | disposeRays(visSamples, outRays);
|
---|
[666] | 632 | }
|
---|
[574] | 633 |
|
---|
[1444] | 634 | // recalculate view cells
|
---|
| 635 | EvaluateViewCellsStats();
|
---|
| 636 |
|
---|
[1843] | 637 | if (1) CompressViewCells();
|
---|
| 638 |
|
---|
| 639 | // write view cells to disc
|
---|
| 640 | if (mExportViewCells)
|
---|
| 641 | {
|
---|
| 642 | char filename[100];
|
---|
| 643 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 644 | ExportViewCells(filename, mExportPvs, mPreprocessor->mObjects);
|
---|
| 645 | }
|
---|
| 646 |
|
---|
[573] | 647 | return numSamples;
|
---|
[527] | 648 | }
|
---|
| 649 |
|
---|
[547] | 650 |
|
---|
[1418] | 651 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 652 | {
|
---|
| 653 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 654 | }
|
---|
| 655 |
|
---|
| 656 |
|
---|
[752] | 657 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 658 | const int nViewCells)
|
---|
[728] | 659 | {
|
---|
| 660 | std::ofstream outstream;
|
---|
| 661 | outstream.open(filename.c_str());
|
---|
| 662 |
|
---|
| 663 | ViewCellContainer viewCells;
|
---|
[1771] | 664 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 665 | #if 1
|
---|
[735] | 666 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[1771] | 667 | #else
|
---|
| 668 | viewCells = mViewCells;
|
---|
| 669 | #endif
|
---|
[728] | 670 |
|
---|
| 671 | float maxRenderCost, minRenderCost;
|
---|
[734] | 672 |
|
---|
| 673 | // sort by render cost
|
---|
| 674 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 675 |
|
---|
| 676 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 677 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 678 |
|
---|
[991] | 679 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 680 |
|
---|
[997] | 681 | int histoIntervals;
|
---|
[1004] | 682 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 683 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 684 |
|
---|
[997] | 685 | int histoMaxVal;
|
---|
[1004] | 686 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 687 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 688 |
|
---|
[997] | 689 |
|
---|
[728] | 690 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 691 | const float stepSize = range / (float)intervals;
|
---|
[728] | 692 |
|
---|
[735] | 693 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 694 |
|
---|
| 695 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 696 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 697 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 698 |
|
---|
[736] | 699 | int j = 0;
|
---|
[735] | 700 | int i = 0;
|
---|
| 701 |
|
---|
[734] | 702 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 703 |
|
---|
[744] | 704 | // count for integral
|
---|
| 705 | float volSum = 0;
|
---|
| 706 | int smallerCostSum = 0;
|
---|
[735] | 707 |
|
---|
[734] | 708 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 709 | while (1)
|
---|
| 710 | {
|
---|
[744] | 711 | // count for histogram value
|
---|
| 712 | float volDif = 0;
|
---|
| 713 | int smallerCostDif = 0;
|
---|
[736] | 714 |
|
---|
[734] | 715 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 716 | {
|
---|
[744] | 717 | volSum += viewCells[i]->GetVolume();
|
---|
| 718 | volDif += viewCells[i]->GetVolume();
|
---|
| 719 |
|
---|
[734] | 720 | ++ i;
|
---|
[744] | 721 | ++ smallerCostSum;
|
---|
| 722 | ++ smallerCostDif;
|
---|
[734] | 723 | }
|
---|
[736] | 724 |
|
---|
[744] | 725 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 726 | break;
|
---|
[736] | 727 |
|
---|
[744] | 728 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 729 | const float volRatioSum = volSum / totalVol;
|
---|
| 730 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 731 |
|
---|
[991] | 732 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 733 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 734 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 735 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 736 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 737 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 738 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 739 |
|
---|
| 740 | // increase current render cost
|
---|
[734] | 741 | currentRenderCost += stepSize;
|
---|
| 742 | }
|
---|
[735] | 743 |
|
---|
[734] | 744 | outstream.close();
|
---|
| 745 | }
|
---|
| 746 |
|
---|
[735] | 747 |
|
---|
[979] | 748 |
|
---|
| 749 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 750 | ObjectContainer *objects,
|
---|
[1676] | 751 | bool finalizeViewCells,
|
---|
[979] | 752 | BoundingBoxConverter *bconverter)
|
---|
| 753 |
|
---|
| 754 | {
|
---|
| 755 | ViewCellsParser parser;
|
---|
| 756 | ViewCellsManager *vm = NULL;
|
---|
| 757 |
|
---|
[1616] | 758 | const long startTime = GetTime();
|
---|
| 759 | bool success = parser.ParseViewCellsFile(filename, &vm, objects, bconverter);
|
---|
| 760 |
|
---|
[1715] | 761 | cout<<"viewcells parsed "<<endl<<flush;
|
---|
| 762 |
|
---|
[1616] | 763 | if (success)
|
---|
[979] | 764 | {
|
---|
[1621] | 765 | //vm->ResetViewCells();
|
---|
[1679] | 766 | //hack
|
---|
| 767 | vm->mViewCells.clear();
|
---|
| 768 | ViewCellContainer leaves;
|
---|
| 769 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
[979] | 770 |
|
---|
[1679] | 771 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[1621] | 772 |
|
---|
[1679] | 773 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 774 | {
|
---|
| 775 | vm->mViewCells.push_back(*it);
|
---|
| 776 | }
|
---|
[979] | 777 | vm->mViewCellsFinished = true;
|
---|
| 778 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 779 |
|
---|
| 780 | if (finalizeViewCells)
|
---|
| 781 | {
|
---|
[1444] | 782 | // create the meshes and compute volumes
|
---|
[979] | 783 | vm->FinalizeViewCells(true);
|
---|
[1616] | 784 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 785 | }
|
---|
| 786 |
|
---|
| 787 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 788 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 789 | }
|
---|
| 790 | else
|
---|
| 791 | {
|
---|
| 792 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 793 | DEL_PTR(vm);
|
---|
| 794 | }
|
---|
| 795 |
|
---|
| 796 | return vm;
|
---|
| 797 | }
|
---|
| 798 |
|
---|
| 799 |
|
---|
| 800 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 801 | const bool exportPvs,
|
---|
| 802 | const ObjectContainer &objects)
|
---|
| 803 | {
|
---|
[1002] | 804 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 805 | {
|
---|
[997] | 806 | return false;
|
---|
[1545] | 807 | }
|
---|
[997] | 808 |
|
---|
[979] | 809 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 810 |
|
---|
[1201] | 811 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 812 |
|
---|
| 813 | // for output we need unique ids for each view cell
|
---|
| 814 | CreateUniqueViewCellIds();
|
---|
| 815 |
|
---|
| 816 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 817 | stream << "<VisibilitySolution>" << endl;
|
---|
| 818 |
|
---|
[1262] | 819 | if (exportPvs)
|
---|
| 820 | {
|
---|
| 821 | //-- export bounding boxes
|
---|
| 822 | stream << "<BoundingBoxes>" << endl;
|
---|
[979] | 823 |
|
---|
[1902] | 824 | if (mUseKdPvs)
|
---|
[1614] | 825 | {
|
---|
[1902] | 826 | vector<KdIntersectable *>::iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
| 827 |
|
---|
| 828 | int id = 0;
|
---|
| 829 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 830 | {
|
---|
| 831 | Intersectable *obj = *kit;
|
---|
| 832 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
[1761] | 833 |
|
---|
[1902] | 834 | obj->SetId(id);
|
---|
| 835 |
|
---|
| 836 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 837 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 838 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 839 | }
|
---|
[1614] | 840 | }
|
---|
[1902] | 841 | else
|
---|
| 842 | {
|
---|
| 843 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[1761] | 844 |
|
---|
[1902] | 845 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 846 | {
|
---|
| 847 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 848 |
|
---|
[1902] | 849 | ////////////
|
---|
| 850 | //-- the bounding boxes
|
---|
| 851 |
|
---|
| 852 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
| 853 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 854 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 855 | }
|
---|
[1262] | 856 | }
|
---|
[1902] | 857 |
|
---|
[1262] | 858 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 859 | }
|
---|
[979] | 860 |
|
---|
[1264] | 861 |
|
---|
[1551] | 862 | /////////////
|
---|
[979] | 863 | //-- export the view cells and the pvs
|
---|
| 864 |
|
---|
| 865 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 866 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 867 |
|
---|
[979] | 868 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 869 |
|
---|
| 870 | stream << "</ViewCells>" << endl;
|
---|
| 871 |
|
---|
| 872 |
|
---|
[1551] | 873 | //////////
|
---|
[1262] | 874 | //-- export the view space hierarchy
|
---|
[979] | 875 |
|
---|
[1262] | 876 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 877 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 878 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 879 |
|
---|
[979] | 880 | mVspBspTree->Export(stream);
|
---|
[1286] | 881 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 882 |
|
---|
| 883 | stream << "</VisibilitySolution>" << endl;
|
---|
| 884 |
|
---|
| 885 | stream.close();
|
---|
| 886 | cout << "finished" << endl;
|
---|
| 887 |
|
---|
| 888 | return true;
|
---|
| 889 | }
|
---|
| 890 |
|
---|
| 891 |
|
---|
[735] | 892 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 893 | const int nViewCells)
|
---|
[734] | 894 | {
|
---|
| 895 | std::ofstream outstream;
|
---|
| 896 | outstream.open(filename.c_str());
|
---|
| 897 |
|
---|
| 898 | ViewCellContainer viewCells;
|
---|
[1771] | 899 |
|
---|
| 900 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 901 | #if 0
|
---|
[735] | 902 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[1771] | 903 | #else
|
---|
| 904 | viewCells = mViewCells;
|
---|
| 905 | #endif
|
---|
[1824] | 906 | ViewCellContainer::iterator it = viewCells.begin(),
|
---|
| 907 | it_end = viewCells.end();
|
---|
[1771] | 908 | for (; it != it_end; ++it) {
|
---|
| 909 | //(*it)->UpdatePvsCost();
|
---|
[1772] | 910 | (*it)->SetPvsCost((float)(*it)->GetFilteredPvsSize());
|
---|
[1771] | 911 | }
|
---|
[734] | 912 |
|
---|
[1709] | 913 | float maxPvs, maxVal, minVal;
|
---|
[1771] | 914 |
|
---|
[997] | 915 | // sort by pvs size
|
---|
[735] | 916 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 917 |
|
---|
[1771] | 918 | maxPvs = viewCells.back()->GetPvsCost();
|
---|
[997] | 919 | minVal = 0;
|
---|
| 920 |
|
---|
[991] | 921 | // hack: normalize pvs size
|
---|
[997] | 922 | int histoMaxVal;
|
---|
[1824] | 923 | Environment::GetSingleton()->GetIntValue(
|
---|
| 924 | "Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1709] | 925 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
[997] | 926 |
|
---|
[1121] | 927 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 928 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 929 |
|
---|
[997] | 930 | int histoIntervals;
|
---|
[1004] | 931 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 932 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 933 |
|
---|
[1709] | 934 | const float range = maxVal - minVal;
|
---|
| 935 | int stepSize = (int)(range / intervals);
|
---|
[735] | 936 |
|
---|
[997] | 937 | // set step size to avoid endless loop
|
---|
[735] | 938 | if (!stepSize) stepSize = 1;
|
---|
[979] | 939 |
|
---|
| 940 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 941 |
|
---|
[735] | 942 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 943 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 944 |
|
---|
[1709] | 945 | float currentPvs = minVal;
|
---|
[997] | 946 |
|
---|
[735] | 947 | int i = 0;
|
---|
| 948 | int j = 0;
|
---|
[744] | 949 | float volSum = 0;
|
---|
| 950 | int smallerSum = 0;
|
---|
| 951 |
|
---|
[1771] | 952 | it = viewCells.begin();
|
---|
[735] | 953 |
|
---|
[997] | 954 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 955 | {
|
---|
[744] | 956 | float volDif = 0;
|
---|
| 957 | int smallerDif = 0;
|
---|
[736] | 958 |
|
---|
[997] | 959 | while ((i < (int)viewCells.size()) &&
|
---|
[1771] | 960 | (viewCells[i]->GetPvsCost() < currentPvs))
|
---|
[735] | 961 | {
|
---|
[744] | 962 | volDif += viewCells[i]->GetVolume();
|
---|
| 963 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 964 |
|
---|
[735] | 965 | ++ i;
|
---|
[744] | 966 | ++ smallerDif;
|
---|
| 967 | ++ smallerSum;
|
---|
[735] | 968 | }
|
---|
[736] | 969 |
|
---|
[1771] | 970 | // if (0 && (i < (int)viewCells.size()))
|
---|
| 971 | // Debug << "new pvs cost increase: " << mViewCellsTree->GetPvsCost(viewCells[i])
|
---|
| 972 | // << " " << currentPvs << endl;
|
---|
| 973 |
|
---|
[744] | 974 | const float volRatioDif = volDif / totalVol;
|
---|
| 975 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 976 |
|
---|
[997] | 977 | outstream << "#Pass\n" << j << endl;
|
---|
| 978 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 979 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 980 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 981 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 982 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 983 |
|
---|
| 984 | //-- increase current pvs size to define next interval
|
---|
| 985 | currentPvs += stepSize;
|
---|
[728] | 986 | }
|
---|
[991] | 987 |
|
---|
[735] | 988 | outstream.close();
|
---|
[1771] | 989 |
|
---|
[728] | 990 | }
|
---|
| 991 |
|
---|
[735] | 992 |
|
---|
[1002] | 993 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 994 | {
|
---|
| 995 | return mExportPvs;
|
---|
| 996 | }
|
---|
| 997 |
|
---|
| 998 |
|
---|
[1580] | 999 | void ViewCellsManager::ResetPvs()
|
---|
| 1000 | {
|
---|
| 1001 | if (ViewCellsTreeConstructed())
|
---|
| 1002 | {
|
---|
| 1003 | mViewCellsTree->ResetPvs();
|
---|
| 1004 | }
|
---|
| 1005 | else
|
---|
| 1006 | {
|
---|
| 1007 | cout << "view cells tree not constructed" << endl;
|
---|
| 1008 | }
|
---|
| 1009 | }
|
---|
| 1010 |
|
---|
| 1011 |
|
---|
[1679] | 1012 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
| 1013 | {
|
---|
| 1014 | mViewCellsTree->ExportStats(fileName);
|
---|
| 1015 | }
|
---|
| 1016 |
|
---|
| 1017 |
|
---|
[1145] | 1018 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 1019 | {
|
---|
| 1020 | int samplesPerPass;
|
---|
| 1021 | int numSamples;
|
---|
| 1022 | int castSamples = 0;
|
---|
[1570] | 1023 | char str[64];
|
---|
[1695] | 1024 | int oldSamples = 0;
|
---|
[660] | 1025 |
|
---|
[1695] | 1026 | int samplesForStats;
|
---|
| 1027 |
|
---|
[1004] | 1028 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1695] | 1029 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1004] | 1030 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 1031 |
|
---|
[664] | 1032 | char statsPrefix[100];
|
---|
[1004] | 1033 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 1034 |
|
---|
[664] | 1035 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 1036 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 1037 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 1038 |
|
---|
[801] | 1039 | cout << "reseting pvs ... ";
|
---|
| 1040 |
|
---|
[1145] | 1041 | const bool startFromZero = true;
|
---|
[801] | 1042 |
|
---|
[666] | 1043 | // reset pvs and start over from zero
|
---|
| 1044 | if (startFromZero)
|
---|
| 1045 | {
|
---|
| 1046 | mViewCellsTree->ResetPvs();
|
---|
| 1047 | }
|
---|
[1145] | 1048 | else // start from current sampless
|
---|
[666] | 1049 | {
|
---|
[1145] | 1050 | // statistics before casting more samples
|
---|
[666] | 1051 | cout << "compute new statistics ... ";
|
---|
[1570] | 1052 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1053 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 1054 |
|
---|
| 1055 | mViewCellsTree->ExportStats(fName);
|
---|
| 1056 | cout << "finished" << endl;
|
---|
| 1057 | }
|
---|
[1570] | 1058 |
|
---|
[744] | 1059 | cout << "finished" << endl;
|
---|
[1178] | 1060 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 1061 |
|
---|
[660] | 1062 | while (castSamples < numSamples)
|
---|
[1686] | 1063 | {
|
---|
| 1064 | ///////////////
|
---|
| 1065 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 1066 |
|
---|
[664] | 1067 | VssRayContainer evaluationSamples;
|
---|
[1686] | 1068 | const int samplingType = mEvaluationSamplingType;
|
---|
[663] | 1069 |
|
---|
[1004] | 1070 | long startTime = GetTime();
|
---|
| 1071 |
|
---|
| 1072 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1073 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1074 |
|
---|
[1773] | 1075 | CastPassSamples(samplesPerPass, mStrategies, evaluationSamples);
|
---|
[664] | 1076 |
|
---|
| 1077 | castSamples += samplesPerPass;
|
---|
| 1078 |
|
---|
[1004] | 1079 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1695] | 1080 |
|
---|
| 1081 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1082 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1695] | 1083 |
|
---|
| 1084 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1085 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 1086 |
|
---|
| 1087 | startTime = GetTime();
|
---|
| 1088 |
|
---|
[664] | 1089 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 1090 |
|
---|
[1004] | 1091 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1092 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1093 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 1094 |
|
---|
[1695] | 1095 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
| 1096 | {
|
---|
| 1097 | oldSamples += samplesForStats;
|
---|
[1686] | 1098 |
|
---|
[1695] | 1099 | ///////////
|
---|
| 1100 | //-- output stats
|
---|
[1686] | 1101 |
|
---|
[1695] | 1102 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1103 | string fileName = string(statsPrefix) + string(str);
|
---|
[1686] | 1104 |
|
---|
[1695] | 1105 | ///////////////
|
---|
| 1106 | //-- propagate pvs or pvs size information
|
---|
[1586] | 1107 |
|
---|
[1695] | 1108 | startTime = GetTime();
|
---|
| 1109 | ObjectPvs pvs;
|
---|
[664] | 1110 |
|
---|
[1709] | 1111 | cout << "updating pvs for evaluation ... " << endl;
|
---|
[664] | 1112 |
|
---|
[1695] | 1113 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 1114 |
|
---|
| 1115 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1116 | cout << "finished updating the pvs in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1117 | Debug << "pvs evaluated in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1118 |
|
---|
| 1119 | startTime = GetTime();
|
---|
| 1120 | cout << "compute new statistics ... " << endl;
|
---|
| 1121 |
|
---|
| 1122 | ExportStats(fileName);
|
---|
| 1123 |
|
---|
| 1124 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1125 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1126 | Debug << "statistis computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1127 | }
|
---|
| 1128 |
|
---|
[664] | 1129 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 1130 | }
|
---|
[728] | 1131 |
|
---|
[997] | 1132 |
|
---|
[1570] | 1133 | ////////////
|
---|
[997] | 1134 | //-- histogram
|
---|
| 1135 |
|
---|
[1695] | 1136 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[735] | 1137 | bool useHisto;
|
---|
[997] | 1138 | int histoStepSize;
|
---|
[693] | 1139 |
|
---|
[1004] | 1140 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 1141 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 1142 |
|
---|
[735] | 1143 | if (useHisto)
|
---|
[734] | 1144 | {
|
---|
[735] | 1145 | // evaluate view cells in a histogram
|
---|
| 1146 | char s[64];
|
---|
| 1147 |
|
---|
[997] | 1148 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1149 | {
|
---|
[997] | 1150 | string filename;
|
---|
[744] | 1151 |
|
---|
[997] | 1152 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1153 | #if 0
|
---|
[744] | 1154 | //-- evaluate histogram for render cost
|
---|
| 1155 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1156 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1157 |
|
---|
| 1158 | EvalViewCellHistogram(filename, pass);
|
---|
| 1159 |
|
---|
[997] | 1160 | #endif
|
---|
[744] | 1161 | //////////////////////////////////////////
|
---|
[752] | 1162 | //-- evaluate histogram for pvs size
|
---|
[744] | 1163 |
|
---|
| 1164 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1165 |
|
---|
| 1166 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1167 | filename = string(statsPrefix) + string(s);
|
---|
| 1168 |
|
---|
| 1169 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1170 | }
|
---|
[734] | 1171 | }
|
---|
[660] | 1172 | }
|
---|
| 1173 |
|
---|
[704] | 1174 |
|
---|
| 1175 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1176 | {
|
---|
[704] | 1177 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1178 | }
|
---|
[660] | 1179 |
|
---|
[703] | 1180 |
|
---|
[1145] | 1181 | /// Returns index of the best view cells of the neighborhood
|
---|
[1707] | 1182 | static int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
[704] | 1183 | {
|
---|
[705] | 1184 | int bestViewCellIdx = 0;
|
---|
[703] | 1185 |
|
---|
[704] | 1186 | float mergeCost = Limits::Infinity;
|
---|
| 1187 | int i = 0;
|
---|
[703] | 1188 |
|
---|
[734] | 1189 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1190 |
|
---|
[734] | 1191 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1192 | {
|
---|
[734] | 1193 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1194 |
|
---|
| 1195 | if (mc < mergeCost)
|
---|
[704] | 1196 | {
|
---|
| 1197 | mergeCost = mc;
|
---|
| 1198 | bestViewCellIdx = i;
|
---|
[703] | 1199 | }
|
---|
[704] | 1200 | }
|
---|
[703] | 1201 |
|
---|
[704] | 1202 | return bestViewCellIdx;
|
---|
| 1203 | }
|
---|
[703] | 1204 |
|
---|
| 1205 |
|
---|
[728] | 1206 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1207 | {
|
---|
| 1208 | mMaxFilterSize = size;
|
---|
| 1209 | }
|
---|
| 1210 |
|
---|
| 1211 |
|
---|
[1703] | 1212 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) //const
|
---|
[728] | 1213 | {
|
---|
[1703] | 1214 | switch (sRenderCostEvaluationType)
|
---|
[728] | 1215 | {
|
---|
| 1216 | case PER_OBJECT:
|
---|
[752] | 1217 | return 1.0f;
|
---|
[728] | 1218 |
|
---|
| 1219 | case PER_TRIANGLE:
|
---|
[1703] | 1220 | {
|
---|
[1701] | 1221 | return (float)obj->NumberOfFaces();
|
---|
[728] | 1222 | }
|
---|
| 1223 | default:
|
---|
[752] | 1224 | cout << "default" << endl;
|
---|
| 1225 | return 1.0f;
|
---|
[728] | 1226 | }
|
---|
| 1227 |
|
---|
| 1228 | // should not come here
|
---|
[752] | 1229 | return 0.0f;
|
---|
[728] | 1230 | }
|
---|
| 1231 |
|
---|
| 1232 |
|
---|
[704] | 1233 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1234 | const ViewCellContainer &viewCells)
|
---|
| 1235 | {
|
---|
| 1236 | ViewCell *root = currentViewCell;
|
---|
| 1237 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1238 |
|
---|
[704] | 1239 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1240 |
|
---|
[704] | 1241 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1242 |
|
---|
| 1243 | /////////////////
|
---|
[704] | 1244 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1245 |
|
---|
[704] | 1246 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1247 | {
|
---|
[704] | 1248 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1249 |
|
---|
[704] | 1250 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1251 |
|
---|
[704] | 1252 | // remove from vector
|
---|
| 1253 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1254 | neighborhood.pop_back();
|
---|
[705] | 1255 |
|
---|
[704] | 1256 | if (!bestViewCell || !root)
|
---|
[1545] | 1257 | cout << "warning!!" << endl;
|
---|
[705] | 1258 |
|
---|
[704] | 1259 | // create new root of the hierarchy
|
---|
| 1260 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1261 | }
|
---|
| 1262 |
|
---|
[704] | 1263 | return root;
|
---|
[703] | 1264 | }
|
---|
| 1265 |
|
---|
[704] | 1266 |
|
---|
[713] | 1267 | struct SortableViewCellEntry {
|
---|
| 1268 |
|
---|
[1174] | 1269 | SortableViewCellEntry() {}
|
---|
| 1270 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1271 |
|
---|
[1174] | 1272 | float mValue;
|
---|
| 1273 | ViewCell *mViewCell;
|
---|
| 1274 |
|
---|
| 1275 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1276 | return a.mValue < b.mValue;
|
---|
| 1277 | }
|
---|
[713] | 1278 | };
|
---|
| 1279 |
|
---|
[1174] | 1280 |
|
---|
| 1281 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1282 | const ViewCellContainer &viewCells)
|
---|
[713] | 1283 | {
|
---|
| 1284 |
|
---|
| 1285 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1286 | int i, j;
|
---|
| 1287 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1288 | if (viewCells[i] != currentViewCell)
|
---|
| 1289 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1290 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1291 | viewCells[i]);
|
---|
| 1292 | }
|
---|
| 1293 | neighborhood.resize(j);
|
---|
| 1294 |
|
---|
| 1295 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1296 |
|
---|
| 1297 | ViewCell *root = currentViewCell;
|
---|
| 1298 |
|
---|
| 1299 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1300 |
|
---|
| 1301 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1302 | //-- use priority queue to merge leaf pairs
|
---|
| 1303 |
|
---|
| 1304 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1305 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1306 | {
|
---|
[713] | 1307 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1308 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1309 | // create new root of the hierarchy
|
---|
| 1310 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1311 | // set negative cost so that this view cell gets deleted
|
---|
| 1312 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1313 | }
|
---|
[713] | 1314 |
|
---|
| 1315 | return root;
|
---|
| 1316 | }
|
---|
| 1317 |
|
---|
| 1318 | void
|
---|
| 1319 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1320 | ) const
|
---|
| 1321 | {
|
---|
[1586] | 1322 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1323 | {
|
---|
| 1324 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1325 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1326 |
|
---|
| 1327 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1328 | DeleteLocalMergeTree(*it);
|
---|
| 1329 |
|
---|
| 1330 | vci->mChildren.clear();
|
---|
| 1331 |
|
---|
| 1332 | delete vci;
|
---|
[713] | 1333 | }
|
---|
| 1334 | }
|
---|
| 1335 |
|
---|
[1021] | 1336 |
|
---|
[564] | 1337 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1338 | int minPvsSize,
|
---|
[562] | 1339 | int maxPvsSize) const
|
---|
[547] | 1340 | {
|
---|
[569] | 1341 |
|
---|
[1707] | 1342 | if ((vc->GetPvs().EvalPvsCost() > maxPvsSize) ||
|
---|
| 1343 | (vc->GetPvs().EvalPvsCost() < minPvsSize))
|
---|
[564] | 1344 | {
|
---|
[710] | 1345 | return false;
|
---|
[561] | 1346 | }
|
---|
[570] | 1347 |
|
---|
[710] | 1348 | return true;
|
---|
[547] | 1349 | }
|
---|
| 1350 |
|
---|
| 1351 |
|
---|
[710] | 1352 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1353 | ViewCellContainer &viewCells) const
|
---|
| 1354 | {
|
---|
| 1355 | return 0;
|
---|
| 1356 | };
|
---|
| 1357 |
|
---|
[1021] | 1358 |
|
---|
[697] | 1359 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1360 | const float width) const
|
---|
| 1361 | {
|
---|
[746] | 1362 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1363 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1364 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1365 |
|
---|
| 1366 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1367 | }
|
---|
| 1368 |
|
---|
| 1369 |
|
---|
[904] | 1370 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1371 | PrVs &prvs,
|
---|
| 1372 | const float filterWidth)
|
---|
[697] | 1373 | {
|
---|
[1594] | 1374 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1375 |
|
---|
[1594] | 1376 | if (mMaxFilterSize < 1) {
|
---|
| 1377 | prvs.mViewCell = currentViewCell;
|
---|
| 1378 | return;
|
---|
| 1379 | }
|
---|
| 1380 |
|
---|
| 1381 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1382 |
|
---|
| 1383 | if (currentViewCell)
|
---|
[1545] | 1384 | {
|
---|
[1594] | 1385 | ViewCellContainer viewCells;
|
---|
| 1386 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1387 |
|
---|
| 1388 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1389 | prvs.mViewCell = root;
|
---|
| 1390 |
|
---|
[1545] | 1391 | }
|
---|
[1594] | 1392 | else
|
---|
[1545] | 1393 | {
|
---|
[1594] | 1394 | prvs.mViewCell = NULL;
|
---|
| 1395 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1396 | }
|
---|
[697] | 1397 | }
|
---|
| 1398 |
|
---|
| 1399 |
|
---|
[581] | 1400 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1401 | {
|
---|
[1002] | 1402 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1403 | }
|
---|
| 1404 |
|
---|
| 1405 |
|
---|
[564] | 1406 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1407 | int minPvs,
|
---|
[562] | 1408 | int maxPvs) const
|
---|
| 1409 | {
|
---|
| 1410 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1411 | }
|
---|
| 1412 |
|
---|
[577] | 1413 |
|
---|
[569] | 1414 | void
|
---|
| 1415 | ViewCellsManager::SetValidity(
|
---|
[570] | 1416 | int minPvsSize,
|
---|
[569] | 1417 | int maxPvsSize) const
|
---|
| 1418 | {
|
---|
[991] | 1419 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1420 |
|
---|
[991] | 1421 |
|
---|
| 1422 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1423 | {
|
---|
| 1424 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1425 | }
|
---|
[569] | 1426 | }
|
---|
[562] | 1427 |
|
---|
[569] | 1428 | void
|
---|
| 1429 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1430 | const float minValid,
|
---|
| 1431 | const float maxValid
|
---|
| 1432 | )
|
---|
| 1433 | {
|
---|
[1761] | 1434 | ObjectPvs dummyPvs;
|
---|
| 1435 | // update pvs sizes
|
---|
| 1436 | for (int i = 0; i < (int)mViewCells.size(); ++ i) {
|
---|
| 1437 | UpdatePvsForEvaluation(mViewCells[i], dummyPvs);
|
---|
| 1438 | }
|
---|
| 1439 |
|
---|
| 1440 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 1441 |
|
---|
| 1442 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1443 | int end = (int)(mViewCells.size() * maxValid);
|
---|
| 1444 |
|
---|
| 1445 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1446 | {
|
---|
[1761] | 1447 | // cout<<"pvs:"<<mViewCells[i]->GetCachedPvsCost()<<endl;
|
---|
| 1448 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
[997] | 1449 | }
|
---|
[569] | 1450 | }
|
---|
| 1451 |
|
---|
[1148] | 1452 |
|
---|
[991] | 1453 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1454 | {
|
---|
[991] | 1455 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1456 | int valid = 0;
|
---|
| 1457 |
|
---|
| 1458 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1459 | {
|
---|
| 1460 | if ((*it)->GetValid())
|
---|
| 1461 | ++ valid;
|
---|
| 1462 | }
|
---|
| 1463 |
|
---|
| 1464 | return valid;
|
---|
[569] | 1465 | }
|
---|
| 1466 |
|
---|
[577] | 1467 |
|
---|
[1545] | 1468 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1469 | const bool extrudeBaseTriangles)
|
---|
[440] | 1470 | {
|
---|
[1545] | 1471 | /// we use predefined view cells from now on
|
---|
| 1472 | mUsePredefinedViewCells = true;
|
---|
[440] | 1473 | X3dParser parser;
|
---|
[1545] | 1474 |
|
---|
| 1475 | if (extrudeBaseTriangles)
|
---|
| 1476 | {
|
---|
| 1477 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1478 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1479 |
|
---|
| 1480 | if (!success)
|
---|
| 1481 | return false;
|
---|
[1545] | 1482 | }
|
---|
| 1483 | else
|
---|
| 1484 | {
|
---|
| 1485 | // hack: use standard mesh loading
|
---|
| 1486 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1487 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1488 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1489 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1490 |
|
---|
| 1491 | if (!success)
|
---|
[1545] | 1492 | {
|
---|
[1563] | 1493 | DEL_PTR(root);
|
---|
| 1494 | return false;
|
---|
| 1495 | }
|
---|
| 1496 |
|
---|
| 1497 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1498 |
|
---|
| 1499 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1500 | {
|
---|
| 1501 | Mesh *mesh;
|
---|
| 1502 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1503 | {
|
---|
[1563] | 1504 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1505 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1506 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1507 | }
|
---|
[1563] | 1508 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1509 | {
|
---|
| 1510 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1511 | mesh = mit->GetMesh();
|
---|
| 1512 | }
|
---|
| 1513 | mesh->ComputeBoundingBox();
|
---|
| 1514 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1515 | }
|
---|
[1563] | 1516 |
|
---|
[1545] | 1517 | DEL_PTR(root);
|
---|
| 1518 | }
|
---|
[503] | 1519 |
|
---|
[1563] | 1520 | // set view space box to bounding box of the view cells
|
---|
| 1521 | AxisAlignedBox3 bbox;
|
---|
| 1522 | bbox.Initialize();
|
---|
| 1523 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1524 |
|
---|
| 1525 | for (; it != it_end; ++ it)
|
---|
[1545] | 1526 | {
|
---|
[1563] | 1527 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1528 | }
|
---|
[503] | 1529 |
|
---|
[1563] | 1530 | SetViewSpaceBox(bbox);
|
---|
| 1531 | cout << "view space box: " << bbox << endl;
|
---|
| 1532 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1533 |
|
---|
| 1534 | return true;
|
---|
[440] | 1535 | }
|
---|
| 1536 |
|
---|
[485] | 1537 |
|
---|
[487] | 1538 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1539 | {
|
---|
[1867] | 1540 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
| 1541 | return true;
|
---|
[487] | 1542 | }
|
---|
| 1543 |
|
---|
[1867] | 1544 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const
|
---|
| 1545 | {
|
---|
| 1546 | viewPoint = mViewSpaceBox.GetRandomPoint(params);
|
---|
| 1547 | return true;
|
---|
| 1548 | }
|
---|
[487] | 1549 |
|
---|
[1867] | 1550 |
|
---|
[557] | 1551 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1552 | {
|
---|
[610] | 1553 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1554 | }
|
---|
| 1555 |
|
---|
| 1556 |
|
---|
[490] | 1557 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1558 | {
|
---|
[1444] | 1559 | if (!ViewCellsConstructed())
|
---|
| 1560 | {
|
---|
| 1561 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1562 | }
|
---|
| 1563 | else
|
---|
| 1564 | {
|
---|
| 1565 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1566 | return false;
|
---|
[837] | 1567 |
|
---|
[1444] | 1568 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1569 |
|
---|
| 1570 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1571 | return false;
|
---|
| 1572 | }
|
---|
| 1573 |
|
---|
| 1574 | return true;
|
---|
[490] | 1575 | }
|
---|
| 1576 |
|
---|
[501] | 1577 |
|
---|
[1867] | 1578 | float
|
---|
| 1579 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1580 | const bool addRays,
|
---|
| 1581 | const bool storeViewCells)
|
---|
[440] | 1582 | {
|
---|
[1867] | 1583 | float sum = 0.0f;
|
---|
[1900] | 1584 |
|
---|
[1867] | 1585 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1586 |
|
---|
| 1587 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
[1444] | 1588 | {
|
---|
[1900] | 1589 | if (!ViewCellsConstructed()) {
|
---|
| 1590 | // view cells not yet constructed
|
---|
| 1591 | // just take the lenghts of the rays as contributions
|
---|
| 1592 | if ((*it)->mTerminationObject)
|
---|
| 1593 | sum += (*it)->Length();
|
---|
| 1594 | } else {
|
---|
| 1595 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1596 | }
|
---|
[1444] | 1597 | }
|
---|
[1867] | 1598 |
|
---|
| 1599 | return sum;
|
---|
[440] | 1600 | }
|
---|
| 1601 |
|
---|
[485] | 1602 |
|
---|
[479] | 1603 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1604 | {
|
---|
[660] | 1605 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1606 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1607 |
|
---|
| 1608 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1609 | {
|
---|
[660] | 1610 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1611 | }
|
---|
[479] | 1612 | }
|
---|
| 1613 |
|
---|
[485] | 1614 |
|
---|
[580] | 1615 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1616 | float &expectedRenderCost,
|
---|
[580] | 1617 | float &deviation,
|
---|
| 1618 | float &variance,
|
---|
[1709] | 1619 | float &totalCost,
|
---|
[580] | 1620 | float &avgRenderCost)
|
---|
[579] | 1621 | {
|
---|
[1444] | 1622 | ////////////
|
---|
| 1623 | //-- compute expected value
|
---|
[579] | 1624 |
|
---|
| 1625 | totalRenderCost = 0;
|
---|
[1709] | 1626 | totalCost = 0;
|
---|
[579] | 1627 |
|
---|
[1444] | 1628 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1629 |
|
---|
[579] | 1630 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1631 | {
|
---|
| 1632 | ViewCell *vc = *it;
|
---|
[1707] | 1633 | totalRenderCost += vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[1709] | 1634 | totalCost += (int)vc->GetPvs().EvalPvsCost();
|
---|
[579] | 1635 | }
|
---|
| 1636 |
|
---|
[580] | 1637 | // normalize with view space box
|
---|
| 1638 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1639 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[1709] | 1640 | avgRenderCost = totalCost / (float)mViewCells.size();
|
---|
[579] | 1641 |
|
---|
| 1642 |
|
---|
[1444] | 1643 | ///////////
|
---|
[580] | 1644 | //-- compute standard defiation
|
---|
[1444] | 1645 |
|
---|
[579] | 1646 | variance = 0;
|
---|
[580] | 1647 | deviation = 0;
|
---|
[579] | 1648 |
|
---|
| 1649 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1650 | {
|
---|
| 1651 | ViewCell *vc = *it;
|
---|
| 1652 |
|
---|
[1707] | 1653 | float renderCost = vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[580] | 1654 | float dev;
|
---|
[579] | 1655 |
|
---|
[580] | 1656 | if (1)
|
---|
[1707] | 1657 | dev = fabs(avgRenderCost - (float)vc->GetPvs().EvalPvsCost());
|
---|
[580] | 1658 | else
|
---|
| 1659 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1660 |
|
---|
[580] | 1661 | deviation += dev;
|
---|
| 1662 | variance += dev * dev;
|
---|
[579] | 1663 | }
|
---|
[580] | 1664 |
|
---|
[579] | 1665 | variance /= (float)mViewCells.size();
|
---|
[580] | 1666 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1667 | }
|
---|
| 1668 |
|
---|
| 1669 |
|
---|
[478] | 1670 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1671 | {
|
---|
| 1672 | return viewCell->GetArea();
|
---|
| 1673 | }
|
---|
| 1674 |
|
---|
| 1675 |
|
---|
| 1676 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1677 | {
|
---|
| 1678 | return viewCell->GetVolume();
|
---|
| 1679 | }
|
---|
| 1680 |
|
---|
[485] | 1681 |
|
---|
[1843] | 1682 | void ViewCellsManager::CompressViewCells()
|
---|
| 1683 | {
|
---|
[1889] | 1684 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
| 1685 | return;
|
---|
| 1686 |
|
---|
[1843] | 1687 | ////////////
|
---|
| 1688 | //-- compression
|
---|
[1889] | 1689 |
|
---|
| 1690 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1843] | 1691 |
|
---|
[1889] | 1692 | cout << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 1693 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[1843] | 1694 |
|
---|
[1889] | 1695 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[1843] | 1696 |
|
---|
[1889] | 1697 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 1698 |
|
---|
| 1699 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 1700 | cout << "number of entries after compress: " << pvsEntries << endl;
|
---|
[1843] | 1701 | }
|
---|
| 1702 |
|
---|
| 1703 |
|
---|
[503] | 1704 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1705 | const float height) const
|
---|
| 1706 | {
|
---|
| 1707 | // one mesh per view cell
|
---|
[1001] | 1708 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1709 |
|
---|
[1545] | 1710 | ////////////
|
---|
[440] | 1711 | //-- construct prism
|
---|
| 1712 |
|
---|
[503] | 1713 | // bottom
|
---|
[440] | 1714 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1715 | // top
|
---|
| 1716 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1717 | // sides
|
---|
| 1718 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1719 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1720 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1721 |
|
---|
[1545] | 1722 |
|
---|
| 1723 | /////////////
|
---|
| 1724 | //-- extrude new vertices for top of prism
|
---|
| 1725 |
|
---|
[1586] | 1726 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1727 | Triangle3 topTri;
|
---|
[440] | 1728 |
|
---|
| 1729 | // add base vertices and calculate top vertices
|
---|
| 1730 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1731 | {
|
---|
[440] | 1732 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1733 | }
|
---|
[503] | 1734 |
|
---|
| 1735 | // add top vertices
|
---|
[440] | 1736 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1737 | {
|
---|
[440] | 1738 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1739 | }
|
---|
[503] | 1740 |
|
---|
[1545] | 1741 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1742 | mesh->ComputeBoundingBox();
|
---|
| 1743 |
|
---|
[440] | 1744 | return GenerateViewCell(mesh);
|
---|
| 1745 | }
|
---|
| 1746 |
|
---|
[485] | 1747 |
|
---|
[551] | 1748 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1749 | {
|
---|
| 1750 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1751 |
|
---|
[1768] | 1752 | // volume and area of the view cells are recomputed
|
---|
| 1753 | // a view cell mesh is created
|
---|
[551] | 1754 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1755 | {
|
---|
| 1756 | Finalize(*it, createMesh);
|
---|
| 1757 | }
|
---|
[555] | 1758 |
|
---|
[1584] | 1759 | mViewCellsTree->AssignRandomColors();
|
---|
| 1760 |
|
---|
[555] | 1761 | mTotalAreaValid = false;
|
---|
[551] | 1762 | }
|
---|
| 1763 |
|
---|
| 1764 |
|
---|
| 1765 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1766 | {
|
---|
| 1767 | // implemented in subclasses
|
---|
| 1768 | }
|
---|
| 1769 |
|
---|
[1001] | 1770 |
|
---|
[1168] | 1771 | /** fast way of merging 2 view cells.
|
---|
| 1772 | */
|
---|
[582] | 1773 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1774 | {
|
---|
[580] | 1775 | // generate parent view cell
|
---|
[752] | 1776 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1777 |
|
---|
[752] | 1778 | vc->GetPvs().Clear();
|
---|
[1740] | 1779 | ObjectPvs::Merge(vc->GetPvs(), left->GetPvs(), right->GetPvs());
|
---|
[752] | 1780 |
|
---|
[710] | 1781 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1782 | vc->mChildren.push_back(left);
|
---|
| 1783 | vc->mChildren.push_back(right);
|
---|
| 1784 |
|
---|
[752] | 1785 | // update pvs size
|
---|
[1707] | 1786 | UpdateScalarPvsSize(vc, vc->GetPvs().EvalPvsCost(), vc->GetPvs().GetSize());
|
---|
[752] | 1787 |
|
---|
[440] | 1788 | return vc;
|
---|
| 1789 | }
|
---|
| 1790 |
|
---|
[485] | 1791 |
|
---|
[582] | 1792 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1793 | {
|
---|
[752] | 1794 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1795 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1796 |
|
---|
| 1797 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1798 | {
|
---|
[1740] | 1799 | vc->GetPvs().MergeInPlace((*it)->GetPvs());
|
---|
| 1800 |
|
---|
[710] | 1801 | vc->mChildren.push_back(*it);
|
---|
[582] | 1802 | }
|
---|
| 1803 |
|
---|
| 1804 | return vc;
|
---|
| 1805 | }
|
---|
| 1806 |
|
---|
| 1807 |
|
---|
[480] | 1808 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1809 | {
|
---|
| 1810 | mRenderer = renderer;
|
---|
| 1811 | }
|
---|
[441] | 1812 |
|
---|
[485] | 1813 |
|
---|
[580] | 1814 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1815 | {
|
---|
[580] | 1816 | return mViewCellsTree;
|
---|
[440] | 1817 | }
|
---|
| 1818 |
|
---|
| 1819 |
|
---|
| 1820 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1821 | {
|
---|
[444] | 1822 | mVisualizationSamples = visSamples;
|
---|
[440] | 1823 | }
|
---|
| 1824 |
|
---|
[485] | 1825 |
|
---|
[440] | 1826 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1827 | {
|
---|
| 1828 | mConstructionSamples = constructionSamples;
|
---|
| 1829 | }
|
---|
| 1830 |
|
---|
[485] | 1831 |
|
---|
[574] | 1832 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1833 | {
|
---|
| 1834 | mInitialSamples = initialSamples;
|
---|
| 1835 | }
|
---|
| 1836 |
|
---|
| 1837 |
|
---|
[440] | 1838 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1839 | {
|
---|
| 1840 | mPostProcessSamples = postProcessSamples;
|
---|
| 1841 | }
|
---|
| 1842 |
|
---|
[485] | 1843 |
|
---|
[440] | 1844 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1845 | {
|
---|
| 1846 | return mVisualizationSamples;
|
---|
| 1847 | }
|
---|
| 1848 |
|
---|
[485] | 1849 |
|
---|
[440] | 1850 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1851 | {
|
---|
| 1852 | return mConstructionSamples;
|
---|
| 1853 | }
|
---|
| 1854 |
|
---|
[485] | 1855 |
|
---|
[440] | 1856 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1857 | {
|
---|
| 1858 | return mPostProcessSamples;
|
---|
| 1859 | }
|
---|
| 1860 |
|
---|
[485] | 1861 |
|
---|
[719] | 1862 | void ViewCellsManager::UpdatePvs()
|
---|
| 1863 | {
|
---|
[1737] | 1864 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
| 1865 | return;
|
---|
| 1866 |
|
---|
| 1867 | mViewCellPvsIsUpdated = true;
|
---|
| 1868 |
|
---|
| 1869 | ViewCellContainer leaves;
|
---|
| 1870 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1871 |
|
---|
| 1872 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1873 |
|
---|
| 1874 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[719] | 1875 | {
|
---|
[1737] | 1876 | mViewCellsTree->PropagatePvs(*it);
|
---|
[719] | 1877 | }
|
---|
| 1878 | }
|
---|
| 1879 |
|
---|
| 1880 |
|
---|
[485] | 1881 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1882 | {
|
---|
[1737] | 1883 | // update pvs of view cells tree if necessary
|
---|
| 1884 | UpdatePvs();
|
---|
| 1885 |
|
---|
| 1886 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1887 |
|
---|
| 1888 | stat.viewcells = 0;
|
---|
| 1889 | stat.minPvs = 100000000;
|
---|
| 1890 | stat.maxPvs = 0;
|
---|
| 1891 | stat.avgPvs = 0.0f;
|
---|
| 1892 | stat.avgFilteredPvs = 0.0f;
|
---|
| 1893 | stat.avgFilterContribution = 0.0f;
|
---|
[1761] | 1894 | stat.avgFilterRadius = 0;
|
---|
| 1895 | stat.avgFilterRatio = 0;
|
---|
[1737] | 1896 |
|
---|
| 1897 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1898 | {
|
---|
[1737] | 1899 | ViewCell *viewcell = *it;
|
---|
[1761] | 1900 | if (viewcell->GetValid()) {
|
---|
| 1901 | const float pvsCost = mViewCellsTree->GetPvsCost(viewcell);
|
---|
| 1902 |
|
---|
| 1903 | if (pvsCost < stat.minPvs)
|
---|
| 1904 | stat.minPvs = pvsCost;
|
---|
| 1905 | if (pvsCost > stat.maxPvs)
|
---|
| 1906 | stat.maxPvs = pvsCost;
|
---|
| 1907 |
|
---|
| 1908 | stat.avgPvs += pvsCost;
|
---|
[1785] | 1909 |
|
---|
| 1910 | bool evaluateFilter;
|
---|
| 1911 | Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluateFilter", evaluateFilter);
|
---|
[1761] | 1912 |
|
---|
| 1913 |
|
---|
| 1914 | if (evaluateFilter) {
|
---|
[1877] | 1915 | ObjectPvs filteredPvs;
|
---|
[1824] | 1916 | PvsFilterStatistics fstat = ApplyFilter2(viewcell,
|
---|
[1877] | 1917 | false,
|
---|
| 1918 | 2.0f,
|
---|
| 1919 | filteredPvs);
|
---|
[1761] | 1920 |
|
---|
| 1921 | float filteredCost = filteredPvs.EvalPvsCost();
|
---|
| 1922 | stat.avgFilteredPvs += filteredCost;
|
---|
| 1923 | stat.avgFilterContribution += filteredCost - pvsCost;
|
---|
[1877] | 1924 |
|
---|
[1761] | 1925 | stat.avgFilterRadius += fstat.mAvgFilterRadius;
|
---|
[1771] | 1926 | int sum = fstat.mGlobalFilterCount + fstat.mLocalFilterCount;
|
---|
| 1927 | if (sum) {
|
---|
| 1928 | stat.avgFilterRatio += fstat.mLocalFilterCount /
|
---|
| 1929 | (float) sum;
|
---|
| 1930 | }
|
---|
[1761] | 1931 |
|
---|
| 1932 | } else {
|
---|
| 1933 | stat.avgFilteredPvs += pvsCost;
|
---|
| 1934 | stat.avgFilterContribution += 0;
|
---|
| 1935 | }
|
---|
| 1936 |
|
---|
| 1937 | ++ stat.viewcells;
|
---|
[1737] | 1938 | }
|
---|
[719] | 1939 | }
|
---|
[1737] | 1940 |
|
---|
| 1941 | if (stat.viewcells) {
|
---|
| 1942 | stat.avgPvs/=stat.viewcells;
|
---|
| 1943 | stat.avgFilteredPvs/=stat.viewcells;
|
---|
| 1944 | stat.avgFilterContribution/=stat.viewcells;
|
---|
[1761] | 1945 | stat.avgFilterRadius/=stat.viewcells;
|
---|
| 1946 | stat.avgFilterRatio/=stat.viewcells;
|
---|
[1737] | 1947 | }
|
---|
[467] | 1948 | }
|
---|
| 1949 |
|
---|
[485] | 1950 |
|
---|
[480] | 1951 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1952 | {
|
---|
| 1953 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1954 | PvsStatistics pvsStat;
|
---|
| 1955 | GetPvsStatistics(pvsStat);
|
---|
| 1956 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
[1737] | 1957 | s<<"#AVG_FILTERED_PVS\n"<<pvsStat.avgFilteredPvs<<endl;
|
---|
| 1958 | s<<"#AVG_FILTER_CONTRIBUTION\n"<<pvsStat.avgFilterContribution<<endl;
|
---|
[1761] | 1959 | s<<"#AVG_FILTER_RADIUS\n"<<pvsStat.avgFilterRadius<<endl;
|
---|
| 1960 | s<<"#AVG_FILTER_RATIO\n"<<pvsStat.avgFilterRatio<<endl;
|
---|
[467] | 1961 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1962 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1963 | }
|
---|
| 1964 |
|
---|
[485] | 1965 |
|
---|
[532] | 1966 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1967 | {
|
---|
| 1968 | return 0;
|
---|
| 1969 | }
|
---|
| 1970 |
|
---|
[547] | 1971 |
|
---|
[468] | 1972 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1973 | {
|
---|
| 1974 | return mViewCells;
|
---|
| 1975 | }
|
---|
| 1976 |
|
---|
[485] | 1977 |
|
---|
[487] | 1978 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1979 | {
|
---|
[542] | 1980 | mViewSpaceBox = box;
|
---|
[1074] | 1981 |
|
---|
[1027] | 1982 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1983 | CreateClipPlane();
|
---|
[1027] | 1984 | // the total area of the view space has changed
|
---|
[577] | 1985 | mTotalAreaValid = false;
|
---|
[487] | 1986 | }
|
---|
| 1987 |
|
---|
| 1988 |
|
---|
[660] | 1989 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1990 | {
|
---|
| 1991 | int axis = 0;
|
---|
[667] | 1992 | float pos;
|
---|
[1418] | 1993 | bool orientation;
|
---|
| 1994 | Vector3 absPos;
|
---|
[591] | 1995 |
|
---|
[1004] | 1996 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1997 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1998 |
|
---|
[1418] | 1999 | if (axis < 0)
|
---|
| 2000 | {
|
---|
| 2001 | axis = -axis;
|
---|
| 2002 | orientation = false;
|
---|
| 2003 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 2004 | }
|
---|
| 2005 | else
|
---|
| 2006 | {
|
---|
| 2007 | orientation = true;
|
---|
| 2008 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 2009 | }
|
---|
| 2010 |
|
---|
[1416] | 2011 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 2012 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 2013 | }
|
---|
| 2014 |
|
---|
| 2015 |
|
---|
[519] | 2016 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 2017 | {
|
---|
[542] | 2018 | return mViewSpaceBox;
|
---|
[519] | 2019 | }
|
---|
| 2020 |
|
---|
| 2021 |
|
---|
[480] | 2022 | void ViewCellsManager::ResetViewCells()
|
---|
| 2023 | {
|
---|
[720] | 2024 | // recollect view cells
|
---|
[480] | 2025 | mViewCells.clear();
|
---|
| 2026 | CollectViewCells();
|
---|
[590] | 2027 |
|
---|
[720] | 2028 | // stats are computed once more
|
---|
[480] | 2029 | EvaluateViewCellsStats();
|
---|
[590] | 2030 |
|
---|
[520] | 2031 | // has to be recomputed
|
---|
[480] | 2032 | mTotalAreaValid = false;
|
---|
| 2033 | }
|
---|
| 2034 |
|
---|
[485] | 2035 |
|
---|
[547] | 2036 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 2037 | {
|
---|
| 2038 | return mMaxPvsSize;
|
---|
| 2039 | }
|
---|
| 2040 |
|
---|
[564] | 2041 |
|
---|
[562] | 2042 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 2043 | {
|
---|
| 2044 | return mMinPvsSize;
|
---|
| 2045 | }
|
---|
| 2046 |
|
---|
| 2047 |
|
---|
| 2048 |
|
---|
[561] | 2049 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 2050 | {
|
---|
| 2051 | return mMaxPvsRatio;
|
---|
| 2052 | }
|
---|
| 2053 |
|
---|
[1594] | 2054 |
|
---|
[1877] | 2055 |
|
---|
| 2056 | #define PVS_ADD_DIRTY 1
|
---|
| 2057 |
|
---|
| 2058 | float
|
---|
| 2059 | ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
[1900] | 2060 | const bool addRays,
|
---|
| 2061 | const bool storeViewCells)
|
---|
[1790] | 2062 | {
|
---|
[1903] | 2063 | ray.mPvsContribution = 0;
|
---|
| 2064 | ray.mRelativePvsContribution = 0.0f;
|
---|
[1877] | 2065 |
|
---|
[1903] | 2066 | if (ray.mTerminationObject==NULL)
|
---|
| 2067 | return 0.0f;
|
---|
| 2068 |
|
---|
| 2069 | ViewCellContainer viewcells;
|
---|
| 2070 |
|
---|
| 2071 | static Ray hray;
|
---|
| 2072 | hray.Init(ray);
|
---|
| 2073 |
|
---|
| 2074 | float tmin = 0, tmax = 1.0;
|
---|
| 2075 |
|
---|
| 2076 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 2077 | return 0;
|
---|
| 2078 |
|
---|
| 2079 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 2080 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 2081 |
|
---|
| 2082 | ViewCell::NewMail();
|
---|
| 2083 |
|
---|
| 2084 | // traverse the view space subdivision
|
---|
| 2085 | CastLineSegment(origin, termination, viewcells);
|
---|
| 2086 |
|
---|
| 2087 | if (storeViewCells)
|
---|
[1877] | 2088 | {
|
---|
[1903] | 2089 | // copy viewcells memory efficiently
|
---|
| 2090 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 2091 | ray.mViewCells = viewcells;
|
---|
[570] | 2092 | }
|
---|
[1903] | 2093 |
|
---|
| 2094 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 2095 |
|
---|
| 2096 | Intersectable *terminationObj = GetIntersectable(ray, true);
|
---|
| 2097 |
|
---|
| 2098 |
|
---|
| 2099 | for (; it != viewcells.end(); ++ it)
|
---|
[664] | 2100 | {
|
---|
[1903] | 2101 | ViewCell *viewcell = *it;
|
---|
| 2102 |
|
---|
| 2103 | if (viewcell->GetValid())
|
---|
| 2104 | {
|
---|
| 2105 | // if ray not outside of view space
|
---|
| 2106 | float contribution;
|
---|
| 2107 |
|
---|
| 2108 | if (terminationObj)
|
---|
[1877] | 2109 | {
|
---|
[1903] | 2110 | // todo: maybe not correct for kd node pvs
|
---|
| 2111 | bool absContribution =
|
---|
| 2112 | viewcell->GetPvs().GetSampleContribution(
|
---|
| 2113 | terminationObj,
|
---|
| 2114 | ray.mPdf,
|
---|
| 2115 | contribution);
|
---|
[1900] | 2116 | #if DIST_WEIGHTED_CONTRIBUTION
|
---|
[1903] | 2117 | // clear the relative contribution
|
---|
| 2118 | contribution = 0.0f;
|
---|
[1900] | 2119 | #endif
|
---|
[1903] | 2120 | if (absContribution)
|
---|
[1824] | 2121 | {
|
---|
[1903] | 2122 | ++ ray.mPvsContribution;
|
---|
| 2123 | if (addRays) {
|
---|
[1877] | 2124 | #if PVS_ADD_DIRTY
|
---|
[1903] | 2125 | viewcell->GetPvs().AddSampleDirtyCheck(terminationObj, ray.mPdf);
|
---|
| 2126 | if (viewcell->GetPvs().RequiresResort()) {
|
---|
| 2127 | viewcell->GetPvs().SimpleSort();
|
---|
| 2128 | }
|
---|
[1877] | 2129 | #else
|
---|
[1903] | 2130 | viewcell->GetPvs().AddSample(terminationObj, ray.mPdf);
|
---|
[718] | 2131 | #endif
|
---|
[1903] | 2132 | }
|
---|
[1900] | 2133 | #if DIST_WEIGHTED_CONTRIBUTION
|
---|
[1903] | 2134 | // recalculate the contribution - weight the 1.0f contribution by the sqr distance to the
|
---|
| 2135 | // object-> a new contribution in the proximity of the viewcell has a larger weight!
|
---|
| 2136 | contribution = 1.0f/SqrDistance(GetViewCellBox(viewcell).Center(),
|
---|
| 2137 | ray.mTermination);
|
---|
[1900] | 2138 | #endif
|
---|
[1877] | 2139 | }
|
---|
[1903] | 2140 |
|
---|
| 2141 | ray.mRelativePvsContribution += contribution;
|
---|
[664] | 2142 | }
|
---|
| 2143 | }
|
---|
[563] | 2144 | }
|
---|
[1900] | 2145 |
|
---|
| 2146 | #if USE_RAY_LENGTH_AS_CONTRIBUTION
|
---|
| 2147 | float c = 0.0f;
|
---|
| 2148 | if (terminationObj)
|
---|
| 2149 | c = ray.Length();
|
---|
| 2150 | ray.mRelativePvsContribution = ray.mPvsContribution = c;
|
---|
| 2151 | return c;
|
---|
| 2152 | #else
|
---|
[1877] | 2153 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 2154 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[1900] | 2155 | #endif
|
---|
[468] | 2156 | }
|
---|
| 2157 |
|
---|
| 2158 |
|
---|
[1877] | 2159 |
|
---|
[469] | 2160 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 2161 | const int maxSize,
|
---|
[503] | 2162 | VssRayContainer &usedRays,
|
---|
[485] | 2163 | VssRayContainer *savedRays) const
|
---|
[469] | 2164 | {
|
---|
[485] | 2165 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 2166 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 2167 |
|
---|
[485] | 2168 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 2169 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 2170 | {
|
---|
[473] | 2171 | if (Random(1.0f) < prop)
|
---|
[485] | 2172 | usedRays.push_back(*it);
|
---|
| 2173 | else if (savedRays)
|
---|
| 2174 | savedRays->push_back(*it);
|
---|
[469] | 2175 | }
|
---|
| 2176 | }
|
---|
| 2177 |
|
---|
[477] | 2178 |
|
---|
[728] | 2179 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 2180 | {
|
---|
[1709] | 2181 | return (float)mViewCellsTree->GetPvsCost(viewCell);
|
---|
[605] | 2182 | }
|
---|
| 2183 |
|
---|
| 2184 |
|
---|
[477] | 2185 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 2186 | {
|
---|
| 2187 | // if already computed
|
---|
| 2188 | if (mTotalAreaValid)
|
---|
[728] | 2189 | {
|
---|
[470] | 2190 | return mTotalArea;
|
---|
[728] | 2191 | }
|
---|
[470] | 2192 |
|
---|
| 2193 | mTotalArea = 0;
|
---|
| 2194 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2195 |
|
---|
| 2196 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 2197 | {
|
---|
| 2198 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2199 | mTotalArea += GetArea(*it);
|
---|
[480] | 2200 | }
|
---|
| 2201 |
|
---|
[470] | 2202 | mTotalAreaValid = true;
|
---|
| 2203 |
|
---|
| 2204 | return mTotalArea;
|
---|
| 2205 | }
|
---|
| 2206 |
|
---|
[482] | 2207 |
|
---|
[475] | 2208 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2209 | {
|
---|
[660] | 2210 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2211 | }
|
---|
| 2212 |
|
---|
[477] | 2213 |
|
---|
[508] | 2214 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2215 | {
|
---|
[651] | 2216 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2217 | {
|
---|
[651] | 2218 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2219 | }
|
---|
| 2220 | else // no view cells tree, handle view cells "myself"
|
---|
| 2221 | {
|
---|
[1551] | 2222 | int i = 0;
|
---|
| 2223 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2224 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2225 | {
|
---|
[1557] | 2226 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2227 | {
|
---|
[1551] | 2228 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2229 | }
|
---|
[1284] | 2230 | }
|
---|
| 2231 | }
|
---|
[508] | 2232 | }
|
---|
| 2233 |
|
---|
[1416] | 2234 |
|
---|
| 2235 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2236 | const AxisAlignedBox3 *sceneBox,
|
---|
[1760] | 2237 | const bool colorCode,
|
---|
| 2238 | const AxisAlignedPlane *clipPlane
|
---|
[1416] | 2239 | ) const
|
---|
[508] | 2240 | {
|
---|
[482] | 2241 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1763] | 2242 |
|
---|
[482] | 2243 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[1763] | 2244 | {
|
---|
[574] | 2245 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
[1763] | 2246 | {
|
---|
[1571] | 2247 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2248 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2249 | }
|
---|
[482] | 2250 | }
|
---|
| 2251 | }
|
---|
| 2252 |
|
---|
| 2253 |
|
---|
[517] | 2254 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2255 | {
|
---|
| 2256 | // convert to meshes
|
---|
| 2257 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2258 |
|
---|
| 2259 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2260 | {
|
---|
[517] | 2261 | if (!(*it)->GetMesh())
|
---|
[1001] | 2262 | {
|
---|
[517] | 2263 | CreateMesh(*it);
|
---|
[1001] | 2264 | }
|
---|
[503] | 2265 | }
|
---|
| 2266 | }
|
---|
| 2267 |
|
---|
[508] | 2268 |
|
---|
[944] | 2269 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2270 | const bool exportPvs,
|
---|
| 2271 | const ObjectContainer &objects)
|
---|
[564] | 2272 | {
|
---|
[508] | 2273 | return false;
|
---|
| 2274 | }
|
---|
| 2275 |
|
---|
| 2276 |
|
---|
[610] | 2277 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2278 | {
|
---|
[610] | 2279 | mNumActiveViewCells = n;
|
---|
| 2280 | mViewCells.clear();
|
---|
[1545] | 2281 | // implemented in subclasses
|
---|
[610] | 2282 | CollectViewCells();
|
---|
| 2283 | }
|
---|
[508] | 2284 |
|
---|
| 2285 |
|
---|
[1707] | 2286 | void ViewCellsManager::SetViewCellActive(ViewCell *vc) const
|
---|
| 2287 | {
|
---|
| 2288 | ViewCellContainer leaves;
|
---|
| 2289 | // sets the pointers to the currently active view cells
|
---|
| 2290 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2291 |
|
---|
| 2292 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2293 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2294 | {
|
---|
| 2295 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(vc);
|
---|
| 2296 | }
|
---|
| 2297 | }
|
---|
| 2298 |
|
---|
| 2299 |
|
---|
[660] | 2300 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2301 | {
|
---|
[1707] | 2302 | // collect leaf view cells and set the pointers to
|
---|
| 2303 | // the currently active view cells
|
---|
[660] | 2304 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2305 |
|
---|
[660] | 2306 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2307 | {
|
---|
[1707] | 2308 | SetViewCellActive(*it);
|
---|
[660] | 2309 | }
|
---|
| 2310 | }
|
---|
[508] | 2311 |
|
---|
[840] | 2312 |
|
---|
| 2313 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2314 | {
|
---|
| 2315 | return mMaxFilterSize;
|
---|
| 2316 | }
|
---|
| 2317 |
|
---|
[1001] | 2318 |
|
---|
[840] | 2319 | static const bool USE_ASCII = true;
|
---|
| 2320 |
|
---|
[1001] | 2321 |
|
---|
[840] | 2322 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2323 | const ObjectContainer &objects) const
|
---|
| 2324 | {
|
---|
| 2325 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2326 |
|
---|
| 2327 | if (USE_ASCII)
|
---|
| 2328 | {
|
---|
| 2329 | ofstream boxesOut(filename.c_str());
|
---|
| 2330 | if (!boxesOut.is_open())
|
---|
| 2331 | return false;
|
---|
| 2332 |
|
---|
| 2333 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2334 | {
|
---|
| 2335 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2336 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2337 |
|
---|
| 2338 | boxesOut << mi->GetId() << " "
|
---|
| 2339 | << box.Min().x << " "
|
---|
| 2340 | << box.Min().y << " "
|
---|
| 2341 | << box.Min().z << " "
|
---|
| 2342 | << box.Max().x << " "
|
---|
| 2343 | << box.Max().y << " "
|
---|
| 2344 | << box.Max().z << endl;
|
---|
| 2345 | }
|
---|
| 2346 |
|
---|
| 2347 | boxesOut.close();
|
---|
| 2348 | }
|
---|
| 2349 | else
|
---|
| 2350 | {
|
---|
| 2351 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2352 |
|
---|
| 2353 | if (!boxesOut.is_open())
|
---|
| 2354 | return false;
|
---|
| 2355 |
|
---|
| 2356 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2357 | {
|
---|
| 2358 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2359 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2360 | Vector3 bmin = box.Min();
|
---|
| 2361 | Vector3 bmax = box.Max();
|
---|
[850] | 2362 | int id = mi->GetId();
|
---|
[840] | 2363 |
|
---|
[850] | 2364 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2365 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2366 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2367 | }
|
---|
| 2368 |
|
---|
| 2369 | boxesOut.close();
|
---|
| 2370 | }
|
---|
| 2371 |
|
---|
| 2372 | return true;
|
---|
| 2373 | }
|
---|
| 2374 |
|
---|
| 2375 |
|
---|
[850] | 2376 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2377 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2378 | {
|
---|
[850] | 2379 | Vector3 bmin, bmax;
|
---|
| 2380 | int id;
|
---|
[840] | 2381 |
|
---|
[850] | 2382 | if (USE_ASCII)
|
---|
[840] | 2383 | {
|
---|
[850] | 2384 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2385 |
|
---|
[850] | 2386 | if (!boxesIn.is_open())
|
---|
[840] | 2387 | {
|
---|
[850] | 2388 | cout << "failed to open file " << filename << endl;
|
---|
| 2389 | return false;
|
---|
[840] | 2390 | }
|
---|
[850] | 2391 |
|
---|
| 2392 | string buf;
|
---|
| 2393 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2394 | {
|
---|
[850] | 2395 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2396 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2397 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2398 |
|
---|
| 2399 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2400 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2401 | // HACK: set bounding box to new box
|
---|
| 2402 | //mi->mBox = box;
|
---|
| 2403 |
|
---|
| 2404 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2405 | }
|
---|
| 2406 |
|
---|
[850] | 2407 | boxesIn.close();
|
---|
[840] | 2408 | }
|
---|
[850] | 2409 | else
|
---|
[840] | 2410 | {
|
---|
[850] | 2411 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2412 |
|
---|
[850] | 2413 | if (!boxesIn.is_open())
|
---|
| 2414 | return false;
|
---|
| 2415 |
|
---|
| 2416 | while (1)
|
---|
[840] | 2417 | {
|
---|
[850] | 2418 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2419 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2420 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2421 |
|
---|
| 2422 | if (boxesIn.eof())
|
---|
| 2423 | break;
|
---|
| 2424 |
|
---|
| 2425 |
|
---|
| 2426 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2427 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2428 |
|
---|
| 2429 | // HACK: set bounding box to new box
|
---|
| 2430 | //mi->mBox = box;
|
---|
| 2431 | //boxes.push_back(mi);
|
---|
| 2432 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2433 | }
|
---|
| 2434 |
|
---|
[850] | 2435 | boxesIn.close();
|
---|
[840] | 2436 | }
|
---|
| 2437 |
|
---|
| 2438 | return true;
|
---|
[850] | 2439 | }
|
---|
[840] | 2440 |
|
---|
[931] | 2441 |
|
---|
| 2442 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2443 | {
|
---|
| 2444 | return mFilterWidth;
|
---|
| 2445 | }
|
---|
| 2446 |
|
---|
| 2447 |
|
---|
| 2448 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2449 | {
|
---|
| 2450 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2451 | }
|
---|
| 2452 |
|
---|
| 2453 |
|
---|
[1168] | 2454 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
[1709] | 2455 | const float pvsCost,
|
---|
[1168] | 2456 | const int entriesInPvs) const
|
---|
[1002] | 2457 | {
|
---|
[1709] | 2458 | vc->mPvsCost = pvsCost;
|
---|
[1160] | 2459 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2460 |
|
---|
[1002] | 2461 | vc->mPvsSizeValid = true;
|
---|
| 2462 | }
|
---|
| 2463 |
|
---|
| 2464 |
|
---|
[1021] | 2465 | void
|
---|
| 2466 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2467 | KdTree *kdTree,
|
---|
| 2468 | const float viewSpaceFilterSize,
|
---|
| 2469 | const float spatialFilterSize,
|
---|
| 2470 | ObjectPvs &pvs
|
---|
| 2471 | )
|
---|
| 2472 | {
|
---|
| 2473 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2474 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2475 | // in the pvs
|
---|
| 2476 |
|
---|
| 2477 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2478 | // and compute the pvs union
|
---|
| 2479 |
|
---|
| 2480 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2481 | // Vector3 center = m->mBox.Center();
|
---|
[1679] | 2482 |
|
---|
| 2483 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2484 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2485 | if (!ViewCellsConstructed())
|
---|
| 2486 | return;
|
---|
| 2487 |
|
---|
[1679] | 2488 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
[1021] | 2489 |
|
---|
[1679] | 2490 | const bool usePrVS = false;
|
---|
[1021] | 2491 |
|
---|
[1679] | 2492 | if (!usePrVS) {
|
---|
| 2493 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2494 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2495 |
|
---|
[1679] | 2496 | ViewCellContainer viewCells;
|
---|
| 2497 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2498 |
|
---|
| 2499 | // cout<<"box="<<box<<endl;
|
---|
| 2500 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2501 |
|
---|
[1740] | 2502 | for (; it != it_end; ++ it)
|
---|
| 2503 | {
|
---|
| 2504 | ObjectPvs interPvs;
|
---|
[1679] | 2505 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
[1740] | 2506 | ObjectPvs::Merge(interPvs, pvs, (*it)->GetPvs());
|
---|
| 2507 |
|
---|
| 2508 | pvs = interPvs;
|
---|
[1679] | 2509 | }
|
---|
[1740] | 2510 | } else
|
---|
| 2511 | {
|
---|
[1679] | 2512 | PrVs prvs;
|
---|
| 2513 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2514 |
|
---|
| 2515 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2516 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2517 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2518 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2519 | }
|
---|
[1740] | 2520 | }
|
---|
| 2521 | else
|
---|
| 2522 | {
|
---|
[1679] | 2523 | pvs = viewCell->GetPvs();
|
---|
[1740] | 2524 | }
|
---|
[1679] | 2525 |
|
---|
| 2526 | if (spatialFilterSize >=0.0f)
|
---|
| 2527 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2528 |
|
---|
[1021] | 2529 | }
|
---|
| 2530 |
|
---|
| 2531 |
|
---|
| 2532 |
|
---|
| 2533 | void
|
---|
| 2534 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2535 | const float relViewSpaceFilterSize,
|
---|
| 2536 | const float relSpatialFilterSize
|
---|
| 2537 | )
|
---|
| 2538 | {
|
---|
| 2539 |
|
---|
| 2540 | if (!ViewCellsConstructed())
|
---|
| 2541 | return;
|
---|
| 2542 |
|
---|
[1679] | 2543 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1021] | 2544 |
|
---|
[1679] | 2545 | ObjectPvs *newPvs;
|
---|
| 2546 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
[1021] | 2547 |
|
---|
[1679] | 2548 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2549 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
[1715] | 2550 |
|
---|
[1679] | 2551 | int i;
|
---|
| 2552 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2553 | ApplyFilter(*it,
|
---|
| 2554 | kdTree,
|
---|
| 2555 | viewSpaceFilterSize,
|
---|
| 2556 | spatialFilterSize,
|
---|
| 2557 | newPvs[i]
|
---|
| 2558 | );
|
---|
[1679] | 2559 | }
|
---|
[1715] | 2560 |
|
---|
[1679] | 2561 | // now replace all pvss
|
---|
| 2562 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2563 |
|
---|
| 2564 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2565 | pvs.Clear();
|
---|
| 2566 | pvs = newPvs[i];
|
---|
| 2567 | newPvs[i].Clear();
|
---|
[1679] | 2568 | }
|
---|
[1021] | 2569 |
|
---|
[1679] | 2570 | delete [] newPvs;
|
---|
| 2571 | }
|
---|
[1021] | 2572 |
|
---|
[1679] | 2573 |
|
---|
[1021] | 2574 | void
|
---|
| 2575 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2576 | KdTree *kdTree,
|
---|
| 2577 | const float spatialFilterSize,
|
---|
| 2578 | ObjectPvs &pvs
|
---|
| 2579 | )
|
---|
| 2580 | {
|
---|
[1716] | 2581 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2582 | // extended boxes of visible objects
|
---|
| 2583 | Intersectable::NewMail();
|
---|
[1742] | 2584 |
|
---|
| 2585 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 2586 |
|
---|
| 2587 | while (pit.HasMoreEntries())
|
---|
| 2588 | {
|
---|
| 2589 | ObjectPvsEntry entry = pit.Next();
|
---|
[1716] | 2590 |
|
---|
[1742] | 2591 | Intersectable *object = entry.mObject;
|
---|
[1189] | 2592 | object->Mail();
|
---|
[1742] | 2593 | }
|
---|
[1021] | 2594 |
|
---|
| 2595 | ObjectPvs nPvs;
|
---|
[1189] | 2596 | int nPvsSize = 0;
|
---|
[1742] | 2597 |
|
---|
| 2598 | ObjectPvsIterator pit2 = pvs.GetIterator();
|
---|
[1021] | 2599 |
|
---|
[1742] | 2600 | while (pit2.HasMoreEntries())
|
---|
| 2601 | {
|
---|
| 2602 | // now go through the pvs again
|
---|
| 2603 | ObjectPvsEntry entry = pit2.Next();
|
---|
| 2604 | Intersectable *object = entry.mObject;
|
---|
[1021] | 2605 |
|
---|
[1742] | 2606 | // Vector3 center = object->GetBox().Center();
|
---|
| 2607 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2608 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2609 |
|
---|
| 2610 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2611 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2612 |
|
---|
| 2613 | ObjectContainer objects;
|
---|
| 2614 |
|
---|
| 2615 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2616 | kdTree->CollectObjects(box, objects);
|
---|
| 2617 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2618 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2619 | for (; noi != objects.end(); ++ noi)
|
---|
| 2620 | {
|
---|
| 2621 | Intersectable *o = *noi;
|
---|
[1764] | 2622 |
|
---|
[1742] | 2623 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2624 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2625 | nPvsSize ++;
|
---|
| 2626 | }
|
---|
[1021] | 2627 | }
|
---|
[1740] | 2628 |
|
---|
[1764] | 2629 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
[1740] | 2630 | pvs.MergeInPlace(nPvs);
|
---|
[1021] | 2631 | }
|
---|
| 2632 |
|
---|
| 2633 |
|
---|
[1787] | 2634 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2635 | const ViewCellContainer &viewCells) const
|
---|
[1786] | 2636 | {
|
---|
[1787] | 2637 | MergeViewCellsRecursivly(pvs, viewCells, 0, (int)viewCells.size() - 1);
|
---|
[1786] | 2638 | }
|
---|
| 2639 |
|
---|
[1787] | 2640 |
|
---|
| 2641 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2642 | const ViewCellContainer &viewCells,
|
---|
| 2643 | const int leftIdx,
|
---|
| 2644 | const int rightIdx) const
|
---|
| 2645 | {
|
---|
| 2646 | if (leftIdx == rightIdx)
|
---|
| 2647 | {
|
---|
| 2648 | pvs = viewCells[leftIdx]->GetPvs();
|
---|
| 2649 | }
|
---|
| 2650 | else
|
---|
| 2651 | {
|
---|
| 2652 | const int midSplit = (leftIdx + rightIdx) / 2;
|
---|
| 2653 |
|
---|
| 2654 | ObjectPvs leftPvs, rightPvs;
|
---|
| 2655 | MergeViewCellsRecursivly(leftPvs, viewCells, leftIdx, midSplit);
|
---|
| 2656 | MergeViewCellsRecursivly(rightPvs, viewCells, midSplit, rightIdx);
|
---|
| 2657 |
|
---|
| 2658 | ObjectPvs::Merge(pvs, leftPvs, rightPvs);
|
---|
| 2659 | }
|
---|
| 2660 | }
|
---|
| 2661 |
|
---|
| 2662 |
|
---|
[1761] | 2663 | PvsFilterStatistics
|
---|
[1715] | 2664 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
[1877] | 2665 | const bool useViewSpaceFilter,
|
---|
| 2666 | const float filterSize,
|
---|
| 2667 | ObjectPvs &pvs,
|
---|
| 2668 | vector<AxisAlignedBox3> *filteredBoxes
|
---|
| 2669 | )
|
---|
[1715] | 2670 | {
|
---|
[1877] | 2671 | //cout<<"y";
|
---|
[1761] | 2672 | PvsFilterStatistics stats;
|
---|
| 2673 |
|
---|
[1737] | 2674 | AxisAlignedBox3 vbox = GetViewCellBox(viewCell);
|
---|
| 2675 | Vector3 center = vbox.Center();
|
---|
[1786] | 2676 | // copy the PVS
|
---|
[1757] | 2677 | Intersectable::NewMail();
|
---|
[1877] | 2678 | ObjectPvs basePvs = viewCell->GetPvs();
|
---|
[1757] | 2679 | ObjectPvsIterator pit = basePvs.GetIterator();
|
---|
[1742] | 2680 |
|
---|
[1877] | 2681 | pvs.Reserve(viewCell->GetFilteredPvsSize());
|
---|
| 2682 |
|
---|
[1902] | 2683 | if (!mUseKdPvs)
|
---|
| 2684 | {
|
---|
| 2685 | // first mark all objects from this pvs
|
---|
| 2686 | while (pit.HasMoreEntries())
|
---|
| 2687 | {
|
---|
| 2688 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2689 | Intersectable *object = entry.mObject;
|
---|
| 2690 | object->Mail();
|
---|
| 2691 | }
|
---|
[1716] | 2692 | }
|
---|
[1877] | 2693 |
|
---|
[1716] | 2694 | int pvsSize = 0;
|
---|
| 2695 | int nPvsSize = 0;
|
---|
[1761] | 2696 | float samples = (float)basePvs.GetSamples();
|
---|
| 2697 |
|
---|
[1787] | 2698 | Debug<<"f #s="<<samples<<" pvs size = "<<basePvs.GetSize();
|
---|
[1737] | 2699 | // cout<<"Filter size = "<<filterSize<<endl;
|
---|
| 2700 | // cout<<"vbox = "<<vbox<<endl;
|
---|
| 2701 | // cout<<"center = "<<center<<endl;
|
---|
[1716] | 2702 |
|
---|
[1737] | 2703 |
|
---|
[1757] | 2704 | // Minimal number of local samples to take into account
|
---|
| 2705 | // the local sampling density.
|
---|
| 2706 | // The size of the filter is a minimum of the conservative
|
---|
| 2707 | // local sampling density estimate (#rays intersecting teh viewcell and
|
---|
| 2708 | // the object)
|
---|
| 2709 | // and gobal estimate for the view cell
|
---|
| 2710 | // (total #rays intersecting the viewcell)
|
---|
[1824] | 2711 | int minLocalSamples = 2;
|
---|
| 2712 |
|
---|
[1737] | 2713 | float viewCellRadius = 0.5f*Magnitude(vbox.Diagonal());
|
---|
| 2714 |
|
---|
| 2715 | // now compute the filter box around the current viewCell
|
---|
[1757] | 2716 |
|
---|
[1737] | 2717 | if (useViewSpaceFilter) {
|
---|
[1877] | 2718 | // float radius = Max(viewCellRadius/100.0f, avgRadius - viewCellRadius);
|
---|
| 2719 | float radius = viewCellRadius/100.0f;
|
---|
| 2720 | vbox.Enlarge(radius);
|
---|
| 2721 | cout<<"vbox = "<<vbox<<endl;
|
---|
| 2722 | ViewCellContainer viewCells;
|
---|
| 2723 | ComputeBoxIntersections(vbox, viewCells);
|
---|
[1737] | 2724 |
|
---|
[1877] | 2725 | ViewCellContainer::const_iterator it = viewCells.begin(),
|
---|
| 2726 | it_end = viewCells.end();
|
---|
| 2727 | int i = 0;
|
---|
| 2728 | for (i=0; it != it_end; ++ it, ++ i)
|
---|
| 2729 | if ((*it) != viewCell) {
|
---|
| 2730 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2731 | basePvs.MergeInPlace((*it)->GetPvs());
|
---|
| 2732 | }
|
---|
| 2733 |
|
---|
| 2734 | // update samples and globalC
|
---|
| 2735 | samples = (float)pvs.GetSamples();
|
---|
| 2736 | // cout<<"neighboring viewcells = "<<i-1<<endl;
|
---|
| 2737 | // cout<<"Samples' = "<<samples<<endl;
|
---|
| 2738 | }
|
---|
| 2739 |
|
---|
[1824] | 2740 | // Minimal number of samples so that filtering takes place
|
---|
| 2741 | #define MIN_SAMPLES 50
|
---|
[1877] | 2742 |
|
---|
[1761] | 2743 | if (samples > MIN_SAMPLES) {
|
---|
[1877] | 2744 | float globalC = 2.0f*filterSize/sqrt(samples);
|
---|
| 2745 |
|
---|
| 2746 | pit = basePvs.GetIterator();
|
---|
| 2747 |
|
---|
| 2748 | ObjectContainer objects;
|
---|
| 2749 |
|
---|
| 2750 | while (pit.HasMoreEntries()) {
|
---|
| 2751 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2752 |
|
---|
| 2753 | Intersectable *object = entry.mObject;
|
---|
| 2754 | // compute filter size based on the distance and the numebr of samples
|
---|
| 2755 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2756 |
|
---|
| 2757 | float distance = Distance(center, box.Center());
|
---|
| 2758 | float globalRadius = distance*globalC;
|
---|
| 2759 |
|
---|
| 2760 | int objectSamples = (int)entry.mData.mSumPdf;
|
---|
| 2761 | float localRadius = MAX_FLOAT;
|
---|
| 2762 |
|
---|
| 2763 | localRadius = filterSize*0.5f*Magnitude(box.Diagonal())/
|
---|
| 2764 | sqrt((float)objectSamples);
|
---|
| 2765 |
|
---|
| 2766 | // cout<<"lr="<<localRadius<<" gr="<<globalRadius<<endl;
|
---|
| 2767 |
|
---|
| 2768 | // now compute the filter size
|
---|
| 2769 | float radius;
|
---|
| 2770 |
|
---|
[1824] | 2771 | #if 0
|
---|
[1877] | 2772 | if (objectSamples <= 1) {
|
---|
| 2773 | if (localRadius > globalRadius) {
|
---|
| 2774 | radius = 0.5flRadius;
|
---|
| 2775 | stats.mLocalFilterCount++;
|
---|
| 2776 | } else {
|
---|
| 2777 | radius = globalRadius;
|
---|
| 2778 | stats.mGlobalFilterCount++;
|
---|
| 2779 | }
|
---|
| 2780 | } else {
|
---|
| 2781 | radius = localRadius;
|
---|
| 2782 | stats.mLocalFilterCount++;
|
---|
| 2783 | }
|
---|
[1824] | 2784 | #else
|
---|
[1877] | 2785 | radius = 0.5f*globalRadius + 0.5f*localRadius;
|
---|
| 2786 | stats.mLocalFilterCount++;
|
---|
| 2787 | stats.mGlobalFilterCount++;
|
---|
[1824] | 2788 | #endif
|
---|
[1877] | 2789 |
|
---|
| 2790 | stats.mAvgFilterRadius += radius;
|
---|
| 2791 |
|
---|
| 2792 | // cout<<"box = "<<box<<endl;
|
---|
| 2793 | // cout<<"distance = "<<distance<<endl;
|
---|
| 2794 | // cout<<"radiues = "<<radius<<endl;
|
---|
| 2795 |
|
---|
| 2796 | box.Enlarge(Vector3(radius));
|
---|
| 2797 |
|
---|
| 2798 | if (filteredBoxes)
|
---|
| 2799 | filteredBoxes->push_back(box);
|
---|
| 2800 |
|
---|
| 2801 | objects.clear();
|
---|
| 2802 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2803 | CollectObjects(box, objects);
|
---|
| 2804 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2805 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2806 | for (; noi != objects.end(); ++ noi) {
|
---|
| 2807 | Intersectable *o = *noi;
|
---|
| 2808 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2809 | pvs.AddSampleDirty(o, Limits::Small);
|
---|
| 2810 | }
|
---|
| 2811 | }
|
---|
| 2812 | stats.mAvgFilterRadius /= (stats.mLocalFilterCount + stats.mGlobalFilterCount);
|
---|
[1757] | 2813 | }
|
---|
[1761] | 2814 |
|
---|
[1771] | 2815 | Debug<<" nPvs size = "<<pvs.GetSize()<<endl;
|
---|
[1877] | 2816 |
|
---|
[1902] | 2817 | if (!mUseKdPvs)
|
---|
| 2818 | {
|
---|
| 2819 | // copy the base pvs to the new pvs
|
---|
| 2820 | pit = basePvs.GetIterator();
|
---|
| 2821 | while (pit.HasMoreEntries())
|
---|
| 2822 | {
|
---|
| 2823 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2824 | pvs.AddSampleDirty(entry.mObject, entry.mData.mSumPdf);
|
---|
| 2825 | }
|
---|
[1716] | 2826 | }
|
---|
[1877] | 2827 |
|
---|
| 2828 | pvs.SimpleSort();
|
---|
[1771] | 2829 | viewCell->SetFilteredPvsSize(pvs.GetSize());
|
---|
[1740] | 2830 |
|
---|
[1737] | 2831 | Intersectable::NewMail();
|
---|
[1761] | 2832 | return stats;
|
---|
[1715] | 2833 | }
|
---|
[1786] | 2834 |
|
---|
| 2835 |
|
---|
| 2836 |
|
---|
[1571] | 2837 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2838 | ViewCell *vc,
|
---|
| 2839 | bool colorCode) const
|
---|
[1021] | 2840 | {
|
---|
| 2841 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2842 |
|
---|
| 2843 | float importance = 0;
|
---|
| 2844 | static Material m;
|
---|
[1760] | 2845 | //cout << "color code: " << colorCode << endl;
|
---|
[1021] | 2846 | switch (mColorCode)
|
---|
| 2847 | {
|
---|
| 2848 | case 0: // Random
|
---|
| 2849 | {
|
---|
| 2850 | if (vcValid)
|
---|
| 2851 | {
|
---|
[1765] | 2852 | m.mDiffuseColor.r = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 2853 | m.mDiffuseColor.g = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 2854 | m.mDiffuseColor.b = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
[1021] | 2855 | }
|
---|
| 2856 | else
|
---|
| 2857 | {
|
---|
| 2858 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2859 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2860 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2861 | }
|
---|
| 2862 |
|
---|
| 2863 | exporter->SetForcedMaterial(m);
|
---|
| 2864 | return;
|
---|
| 2865 | }
|
---|
| 2866 |
|
---|
| 2867 | case 1: // pvs
|
---|
[1763] | 2868 | {
|
---|
[1021] | 2869 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2870 | {
|
---|
[1763] | 2871 | importance = (float)mViewCellsTree->GetPvsCost(vc) /
|
---|
| 2872 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[1121] | 2873 | }
|
---|
[1021] | 2874 | }
|
---|
| 2875 | break;
|
---|
| 2876 | case 2: // merges
|
---|
| 2877 | {
|
---|
| 2878 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2879 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2880 | }
|
---|
| 2881 | break;
|
---|
| 2882 | #if 0
|
---|
| 2883 | case 3: // merge tree differene
|
---|
| 2884 | {
|
---|
| 2885 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2886 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2887 |
|
---|
| 2888 | }
|
---|
| 2889 | break;
|
---|
| 2890 | #endif
|
---|
| 2891 | default:
|
---|
| 2892 | break;
|
---|
| 2893 | }
|
---|
| 2894 |
|
---|
| 2895 | // special color code for invalid view cells
|
---|
| 2896 | m.mDiffuseColor.r = importance;
|
---|
[1765] | 2897 | m.mDiffuseColor.g = vcValid ? 0.0f : 1.0f;
|
---|
| 2898 | m.mDiffuseColor.b = 1.0f - importance;
|
---|
[1021] | 2899 |
|
---|
| 2900 | //Debug << "importance: " << importance << endl;
|
---|
| 2901 | exporter->SetForcedMaterial(m);
|
---|
| 2902 | }
|
---|
| 2903 |
|
---|
| 2904 |
|
---|
[1022] | 2905 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2906 | vector<MergeCandidate> &candidates)
|
---|
| 2907 | {
|
---|
| 2908 | // implemented in subclasses
|
---|
| 2909 | }
|
---|
| 2910 |
|
---|
[1047] | 2911 |
|
---|
[1718] | 2912 | void ViewCellsManager::UpdatePvsForEvaluation()
|
---|
[1608] | 2913 | {
|
---|
[1718] | 2914 | ObjectPvs objPvs;
|
---|
| 2915 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
[1608] | 2916 | }
|
---|
| 2917 |
|
---|
[1168] | 2918 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2919 | {
|
---|
| 2920 | // terminate traversal
|
---|
| 2921 | if (root->IsLeaf())
|
---|
| 2922 | {
|
---|
[1709] | 2923 | //cout << "updating leaf" << endl;
|
---|
[1168] | 2924 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2925 | pvs = root->GetPvs();
|
---|
[1707] | 2926 | UpdateScalarPvsSize(root, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2927 | return;
|
---|
| 2928 | }
|
---|
[1709] | 2929 |
|
---|
[1586] | 2930 | ////////////////
|
---|
| 2931 | //-- interior node => propagate pvs up the tree
|
---|
| 2932 |
|
---|
[1168] | 2933 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 2934 |
|
---|
| 2935 | // reset interior pvs
|
---|
[1168] | 2936 | interior->GetPvs().Clear();
|
---|
[1606] | 2937 | // reset recursive pvs
|
---|
[1168] | 2938 | pvs.Clear();
|
---|
[1695] | 2939 |
|
---|
| 2940 | // pvss of child nodes
|
---|
[1168] | 2941 | vector<ObjectPvs> pvsList;
|
---|
[1709] | 2942 | pvsList.resize((int)interior->mChildren.size());
|
---|
[1168] | 2943 |
|
---|
| 2944 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[1709] | 2945 |
|
---|
[1695] | 2946 | int i = 0;
|
---|
[1709] | 2947 |
|
---|
[1695] | 2948 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[1168] | 2949 | {
|
---|
[1586] | 2950 | //////////////////
|
---|
[1168] | 2951 | //-- recursivly compute child pvss
|
---|
[1695] | 2952 | UpdatePvsForEvaluation(*vit, pvsList[i]/*objPvs*/);
|
---|
[1168] | 2953 | }
|
---|
| 2954 |
|
---|
| 2955 | #if 1
|
---|
| 2956 | Intersectable::NewMail();
|
---|
| 2957 |
|
---|
| 2958 | //-- faster way of computing pvs:
|
---|
[1586] | 2959 | //-- construct merged pvs by adding
|
---|
| 2960 | //-- and only those of the next pvs which were not mailed.
|
---|
| 2961 | //-- note: sumpdf is not correct!!
|
---|
| 2962 |
|
---|
[1168] | 2963 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2964 |
|
---|
| 2965 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2966 | {
|
---|
[1742] | 2967 | ObjectPvsIterator pit = (*oit).GetIterator();
|
---|
| 2968 |
|
---|
| 2969 | // first mark all object from this pvs
|
---|
| 2970 | while (pit.HasMoreEntries())
|
---|
| 2971 | {
|
---|
| 2972 | ObjectPvsEntry entry = pit.Next();
|
---|
[1168] | 2973 |
|
---|
[1742] | 2974 | Intersectable *intersect = entry.mObject;
|
---|
| 2975 |
|
---|
[1168] | 2976 | if (!intersect->Mailed())
|
---|
[1764] | 2977 | {
|
---|
[1742] | 2978 | pvs.AddSample(intersect, entry.mData.mSumPdf);
|
---|
[1168] | 2979 | intersect->Mail();
|
---|
| 2980 | }
|
---|
| 2981 | }
|
---|
| 2982 | }
|
---|
| 2983 |
|
---|
| 2984 | // store pvs in this node
|
---|
| 2985 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2986 | {
|
---|
| 2987 | interior->SetPvs(pvs);
|
---|
| 2988 | }
|
---|
| 2989 |
|
---|
| 2990 | // set new pvs size
|
---|
[1707] | 2991 | UpdateScalarPvsSize(interior, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2992 |
|
---|
[1586] | 2993 | #else
|
---|
| 2994 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2995 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2996 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2997 | #endif
|
---|
| 2998 | }
|
---|
| 2999 |
|
---|
[1174] | 3000 |
|
---|
| 3001 |
|
---|
[1145] | 3002 | /*******************************************************************/
|
---|
| 3003 | /* BspViewCellsManager implementation */
|
---|
| 3004 | /*******************************************************************/
|
---|
[440] | 3005 |
|
---|
[482] | 3006 |
|
---|
[1264] | 3007 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 3008 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 3009 | {
|
---|
[1004] | 3010 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[1640] | 3011 |
|
---|
[587] | 3012 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 3013 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 3014 | }
|
---|
| 3015 |
|
---|
[462] | 3016 |
|
---|
[440] | 3017 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3018 | {
|
---|
| 3019 | return mBspTree->GetRoot() != NULL;
|
---|
| 3020 | }
|
---|
| 3021 |
|
---|
[480] | 3022 |
|
---|
[440] | 3023 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3024 | {
|
---|
| 3025 | return new BspViewCell(mesh);
|
---|
| 3026 | }
|
---|
| 3027 |
|
---|
[480] | 3028 |
|
---|
[574] | 3029 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 3030 | const VssRayContainer &rays)
|
---|
[440] | 3031 | {
|
---|
[1545] | 3032 | // if view cells were already constructed, we can finish
|
---|
[440] | 3033 | if (ViewCellsConstructed())
|
---|
| 3034 | return 0;
|
---|
| 3035 |
|
---|
| 3036 | int sampleContributions = 0;
|
---|
[503] | 3037 |
|
---|
[469] | 3038 | // construct view cells using the collected samples
|
---|
| 3039 | RayContainer constructionRays;
|
---|
| 3040 | VssRayContainer savedRays;
|
---|
[440] | 3041 |
|
---|
[1563] | 3042 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 3043 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 3044 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 3045 |
|
---|
[473] | 3046 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 3047 |
|
---|
[469] | 3048 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 3049 | {
|
---|
[473] | 3050 | if (Random(1.0f) < prop)
|
---|
[469] | 3051 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 3052 | else
|
---|
| 3053 | savedRays.push_back(*it);
|
---|
| 3054 | }
|
---|
[440] | 3055 |
|
---|
[1545] | 3056 | if (!mUsePredefinedViewCells)
|
---|
[503] | 3057 | {
|
---|
| 3058 | // no view cells loaded
|
---|
[587] | 3059 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 3060 | // collect final view cells
|
---|
| 3061 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 3062 | }
|
---|
[469] | 3063 | else
|
---|
[1551] | 3064 | {
|
---|
[1545] | 3065 | // use predefined view cells geometry =>
|
---|
| 3066 | // contruct bsp hierarchy over them
|
---|
[469] | 3067 | mBspTree->Construct(mViewCells);
|
---|
| 3068 | }
|
---|
| 3069 |
|
---|
| 3070 | // destroy rays created only for construction
|
---|
| 3071 | CLEAR_CONTAINER(constructionRays);
|
---|
| 3072 |
|
---|
[440] | 3073 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 3074 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 3075 |
|
---|
[469] | 3076 | // recast rest of the rays
|
---|
[649] | 3077 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3078 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 3079 |
|
---|
[719] | 3080 | // real meshes are contructed at this stage
|
---|
| 3081 | if (0)
|
---|
| 3082 | {
|
---|
| 3083 | cout << "finalizing view cells ... ";
|
---|
| 3084 | FinalizeViewCells(true);
|
---|
| 3085 | cout << "finished" << endl;
|
---|
| 3086 | }
|
---|
| 3087 |
|
---|
[440] | 3088 | return sampleContributions;
|
---|
| 3089 | }
|
---|
| 3090 |
|
---|
[503] | 3091 |
|
---|
[480] | 3092 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 3093 | {
|
---|
[587] | 3094 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 3095 | { // view cells tree constructed
|
---|
[587] | 3096 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 3097 | }
|
---|
| 3098 | else
|
---|
[1545] | 3099 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 3100 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 3101 | }
|
---|
[480] | 3102 | }
|
---|
[468] | 3103 |
|
---|
[503] | 3104 |
|
---|
[471] | 3105 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 3106 | {
|
---|
[591] | 3107 | if (1)
|
---|
| 3108 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 3109 | else
|
---|
[1545] | 3110 | // compute view cell area as subsititute for probability
|
---|
[591] | 3111 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 3112 | }
|
---|
[440] | 3113 |
|
---|
[503] | 3114 |
|
---|
[440] | 3115 |
|
---|
[468] | 3116 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3117 | const Vector3 &termination,
|
---|
| 3118 | ViewCellContainer &viewcells)
|
---|
[440] | 3119 | {
|
---|
[468] | 3120 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 3121 | }
|
---|
| 3122 |
|
---|
| 3123 |
|
---|
[1551] | 3124 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 3125 | {
|
---|
| 3126 | // save color code
|
---|
| 3127 | const int savedColorCode = mColorCode;
|
---|
| 3128 |
|
---|
[1763] | 3129 | Exporter *exporter;
|
---|
| 3130 |
|
---|
| 3131 | #if 0
|
---|
[1545] | 3132 | // export merged view cells
|
---|
| 3133 | mColorCode = 0; // use random colors
|
---|
| 3134 |
|
---|
[1763] | 3135 | exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[1545] | 3136 |
|
---|
| 3137 | cout << "exporting view cells after merge ... ";
|
---|
| 3138 |
|
---|
| 3139 | if (exporter)
|
---|
| 3140 | {
|
---|
| 3141 | if (mExportGeometry)
|
---|
| 3142 | {
|
---|
| 3143 | exporter->ExportGeometry(objects);
|
---|
| 3144 | }
|
---|
| 3145 |
|
---|
| 3146 | exporter->SetFilled();
|
---|
[1760] | 3147 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3148 |
|
---|
| 3149 | delete exporter;
|
---|
| 3150 | }
|
---|
| 3151 | cout << "finished" << endl;
|
---|
[1763] | 3152 | #endif
|
---|
[1545] | 3153 |
|
---|
| 3154 | // export merged view cells using pvs color coding
|
---|
| 3155 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 3156 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3157 |
|
---|
| 3158 | if (exporter)
|
---|
| 3159 | {
|
---|
| 3160 | if (mExportGeometry)
|
---|
| 3161 | {
|
---|
| 3162 | exporter->ExportGeometry(objects);
|
---|
| 3163 | }
|
---|
| 3164 |
|
---|
| 3165 | exporter->SetFilled();
|
---|
[1760] | 3166 | mColorCode = 1;
|
---|
[1763] | 3167 |
|
---|
[1760] | 3168 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3169 |
|
---|
| 3170 | delete exporter;
|
---|
| 3171 | }
|
---|
| 3172 | cout << "finished" << endl;
|
---|
| 3173 |
|
---|
| 3174 | mColorCode = savedColorCode;
|
---|
| 3175 | }
|
---|
| 3176 |
|
---|
| 3177 |
|
---|
[503] | 3178 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 3179 | const VssRayContainer &rays)
|
---|
| 3180 | {
|
---|
[469] | 3181 | if (!ViewCellsConstructed())
|
---|
[441] | 3182 | {
|
---|
| 3183 | Debug << "view cells not constructed" << endl;
|
---|
| 3184 | return 0;
|
---|
| 3185 | }
|
---|
[590] | 3186 |
|
---|
[1414] | 3187 | // view cells already finished before post processing step,
|
---|
| 3188 | // i.e., because they were loaded from disc
|
---|
[590] | 3189 | if (mViewCellsFinished)
|
---|
| 3190 | {
|
---|
| 3191 | FinalizeViewCells(true);
|
---|
| 3192 | EvaluateViewCellsStats();
|
---|
| 3193 |
|
---|
| 3194 | return 0;
|
---|
| 3195 | }
|
---|
| 3196 |
|
---|
[1444] | 3197 | //////////////////
|
---|
[1414] | 3198 | //-- merge leaves of the view cell hierarchy
|
---|
| 3199 |
|
---|
[649] | 3200 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 3201 | long startTime = GetTime();
|
---|
| 3202 |
|
---|
| 3203 | VssRayContainer postProcessRays;
|
---|
| 3204 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3205 |
|
---|
[592] | 3206 | if (mMergeViewCells)
|
---|
[591] | 3207 | {
|
---|
[660] | 3208 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 3209 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 3210 | }
|
---|
| 3211 | else
|
---|
| 3212 | {
|
---|
[660] | 3213 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 3214 | ViewCell *root;
|
---|
| 3215 | // the spatial merge tree is difficult to build for
|
---|
| 3216 | // this type of construction, as view cells cover several
|
---|
| 3217 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 3218 | if (mUsePredefinedViewCells)
|
---|
| 3219 | {
|
---|
| 3220 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 3221 | }
|
---|
| 3222 | else
|
---|
| 3223 | {
|
---|
| 3224 | // create spatial merge hierarchy
|
---|
| 3225 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 3226 | }
|
---|
| 3227 |
|
---|
[752] | 3228 | mViewCellsTree->SetRoot(root);
|
---|
| 3229 |
|
---|
[1415] | 3230 | // recompute pvs in the whole hierarchy
|
---|
[752] | 3231 | ObjectPvs pvs;
|
---|
| 3232 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 3233 | }
|
---|
[440] | 3234 |
|
---|
[1415] | 3235 | cout << "finished" << endl;
|
---|
| 3236 | cout << "merged view cells in "
|
---|
| 3237 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 3238 |
|
---|
| 3239 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3240 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 3241 |
|
---|
| 3242 |
|
---|
[1418] | 3243 | ////////////////////////
|
---|
[1444] | 3244 | //-- visualization and statistics after merge
|
---|
[1415] | 3245 |
|
---|
[666] | 3246 | if (1)
|
---|
| 3247 | {
|
---|
| 3248 | char mstats[100];
|
---|
[1004] | 3249 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3250 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3251 | }
|
---|
[650] | 3252 |
|
---|
[1551] | 3253 | // recompute view cells and stats
|
---|
| 3254 | ResetViewCells();
|
---|
[660] | 3255 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 3256 |
|
---|
[1551] | 3257 | // visualization of the view cells
|
---|
[1763] | 3258 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 3259 |
|
---|
[719] | 3260 | // compute final meshes and volume / area
|
---|
| 3261 | if (1) FinalizeViewCells(true);
|
---|
[840] | 3262 |
|
---|
[650] | 3263 | return 0;
|
---|
[440] | 3264 | }
|
---|
| 3265 |
|
---|
[477] | 3266 |
|
---|
| 3267 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 3268 | {
|
---|
| 3269 | }
|
---|
| 3270 |
|
---|
| 3271 |
|
---|
[440] | 3272 | int BspViewCellsManager::GetType() const
|
---|
| 3273 | {
|
---|
| 3274 | return BSP;
|
---|
| 3275 | }
|
---|
| 3276 |
|
---|
| 3277 |
|
---|
| 3278 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3279 | const VssRayContainer &sampleRays)
|
---|
[440] | 3280 | {
|
---|
[469] | 3281 | if (!ViewCellsConstructed())
|
---|
| 3282 | return;
|
---|
[574] | 3283 |
|
---|
[1563] | 3284 | const int savedColorCode = mColorCode;
|
---|
[1551] | 3285 |
|
---|
[600] | 3286 | if (1) // export final view cells
|
---|
[440] | 3287 | {
|
---|
[1020] | 3288 | mColorCode = 1; // hack color code
|
---|
[1415] | 3289 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3290 |
|
---|
| 3291 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 3292 |
|
---|
[469] | 3293 | if (exporter)
|
---|
[440] | 3294 | {
|
---|
[600] | 3295 | if (mExportGeometry)
|
---|
[1416] | 3296 | {
|
---|
[600] | 3297 | exporter->ExportGeometry(objects);
|
---|
[1416] | 3298 | }
|
---|
[590] | 3299 |
|
---|
[1760] | 3300 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[469] | 3301 | delete exporter;
|
---|
[440] | 3302 | }
|
---|
[469] | 3303 | cout << "finished" << endl;
|
---|
[503] | 3304 | }
|
---|
[1551] | 3305 |
|
---|
[1545] | 3306 | // reset color code
|
---|
[600] | 3307 | mColorCode = savedColorCode;
|
---|
| 3308 |
|
---|
[1416] | 3309 |
|
---|
| 3310 | //////////////////
|
---|
[469] | 3311 | //-- visualization of the BSP splits
|
---|
[1416] | 3312 |
|
---|
[469] | 3313 | bool exportSplits = false;
|
---|
[1004] | 3314 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3315 |
|
---|
[469] | 3316 | if (exportSplits)
|
---|
[440] | 3317 | {
|
---|
[469] | 3318 | cout << "exporting splits ... ";
|
---|
[477] | 3319 | ExportSplits(objects);
|
---|
[469] | 3320 | cout << "finished" << endl;
|
---|
[440] | 3321 | }
|
---|
[477] | 3322 |
|
---|
[1570] | 3323 | int leafOut;
|
---|
| 3324 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 3325 | const int raysOut = 100;
|
---|
| 3326 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 3327 | }
|
---|
| 3328 |
|
---|
| 3329 |
|
---|
[477] | 3330 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 3331 | {
|
---|
| 3332 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3333 |
|
---|
[503] | 3334 | if (exporter)
|
---|
| 3335 | {
|
---|
[598] | 3336 | //exporter->SetFilled();
|
---|
| 3337 | if (mExportGeometry)
|
---|
[1545] | 3338 | {
|
---|
[598] | 3339 | exporter->ExportGeometry(objects);
|
---|
[1545] | 3340 | }
|
---|
[598] | 3341 |
|
---|
[503] | 3342 | Material m;
|
---|
[440] | 3343 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3344 | exporter->SetForcedMaterial(m);
|
---|
| 3345 | exporter->SetWireframe();
|
---|
[503] | 3346 |
|
---|
[440] | 3347 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 3348 |
|
---|
[1545] | 3349 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 3350 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3351 | exporter->SetForcedMaterial(m);
|
---|
[482] | 3352 | //exporter->ResetForcedMaterial();
|
---|
| 3353 |
|
---|
[440] | 3354 | delete exporter;
|
---|
| 3355 | }
|
---|
| 3356 | }
|
---|
| 3357 |
|
---|
[477] | 3358 |
|
---|
[1570] | 3359 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3360 | const int maxViewCells,
|
---|
| 3361 | const bool sortViewCells,
|
---|
| 3362 | const bool exportPvs,
|
---|
| 3363 | const bool exportRays,
|
---|
| 3364 | const int maxRays,
|
---|
| 3365 | const string prefix,
|
---|
| 3366 | VssRayContainer *visRays)
|
---|
[440] | 3367 | {
|
---|
[1570] | 3368 | if (sortViewCells)
|
---|
| 3369 | { // sort view cells to visualize the largest view cells
|
---|
[1789] | 3370 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1570] | 3371 | }
|
---|
[440] | 3372 |
|
---|
[1545] | 3373 | //////////
|
---|
[1570] | 3374 | //-- some view cells for output
|
---|
[503] | 3375 |
|
---|
[1570] | 3376 | ViewCell::NewMail();
|
---|
| 3377 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 3378 |
|
---|
| 3379 | for (int i = 0; i < limit; ++ i)
|
---|
| 3380 | {
|
---|
| 3381 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 3382 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 3383 |
|
---|
[1570] | 3384 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 3385 | continue;
|
---|
[587] | 3386 |
|
---|
[1570] | 3387 | vc->Mail();
|
---|
[503] | 3388 |
|
---|
[1570] | 3389 | ObjectPvs pvs;
|
---|
| 3390 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 3391 |
|
---|
[1571] | 3392 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 3393 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3394 |
|
---|
[1709] | 3395 | cout << "view cell " << idx << ": pvs cost=" << (int)mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[582] | 3396 |
|
---|
[1570] | 3397 | if (exportRays)
|
---|
| 3398 | {
|
---|
| 3399 | ////////////
|
---|
| 3400 | //-- export rays piercing this view cell
|
---|
[469] | 3401 |
|
---|
[1571] | 3402 | // use rays stored with the view cells
|
---|
| 3403 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 3404 | VssRayContainer collectRays;
|
---|
| 3405 |
|
---|
| 3406 | // collect initial view cells
|
---|
| 3407 | ViewCellContainer leaves;
|
---|
| 3408 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3409 |
|
---|
| 3410 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3411 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 3412 | {
|
---|
[1571] | 3413 | // prepare some rays for output
|
---|
[1696] | 3414 | VssRayContainer::const_iterator rit, rit_end = (*vit)->GetOrCreateRays()->end();
|
---|
| 3415 | for (rit = (*vit)->GetOrCreateRays()->begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 3416 | {
|
---|
| 3417 | collectRays.push_back(*rit);
|
---|
| 3418 | }
|
---|
| 3419 | }
|
---|
| 3420 |
|
---|
| 3421 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3422 |
|
---|
[1570] | 3423 | // prepare some rays for output
|
---|
| 3424 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3425 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3426 | {
|
---|
[1570] | 3427 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3428 | if (p < raysOut)
|
---|
[587] | 3429 | {
|
---|
[1571] | 3430 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3431 | {
|
---|
[1571] | 3432 | vcRays.push_back(*rit);
|
---|
[1580] | 3433 | }
|
---|
[1571] | 3434 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 3435 | vcRays2.push_back(*rit);
|
---|
| 3436 | else
|
---|
| 3437 | vcRays3.push_back(*rit);
|
---|
| 3438 |
|
---|
[587] | 3439 | }
|
---|
[477] | 3440 | }
|
---|
[1571] | 3441 |
|
---|
| 3442 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3443 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3444 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3445 | }
|
---|
[1570] | 3446 |
|
---|
| 3447 | ////////////////
|
---|
| 3448 | //-- export view cell geometry
|
---|
[587] | 3449 |
|
---|
[478] | 3450 | exporter->SetWireframe();
|
---|
[477] | 3451 |
|
---|
[478] | 3452 | Material m;//= RandomMaterial();
|
---|
| 3453 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3454 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3455 |
|
---|
[1416] | 3456 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3457 | exporter->SetFilled();
|
---|
[469] | 3458 |
|
---|
[1570] | 3459 | if (exportPvs)
|
---|
[478] | 3460 | {
|
---|
[1570] | 3461 | Intersectable::NewMail();
|
---|
[1742] | 3462 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 3463 |
|
---|
| 3464 | while (pit.HasMoreEntries())
|
---|
[1570] | 3465 | {
|
---|
[1742] | 3466 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3467 |
|
---|
| 3468 | // output PVS of view cell
|
---|
| 3469 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 3470 |
|
---|
| 3471 | if (!intersect->Mailed())
|
---|
| 3472 | {
|
---|
| 3473 | intersect->Mail();
|
---|
[1571] | 3474 |
|
---|
[1570] | 3475 | m = RandomMaterial();
|
---|
| 3476 | exporter->SetForcedMaterial(m);
|
---|
| 3477 | exporter->ExportIntersectable(intersect);
|
---|
| 3478 | }
|
---|
[503] | 3479 | }
|
---|
[1570] | 3480 | cout << endl;
|
---|
[477] | 3481 | }
|
---|
[1570] | 3482 |
|
---|
[478] | 3483 | DEL_PTR(exporter);
|
---|
| 3484 | cout << "finished" << endl;
|
---|
[477] | 3485 | }
|
---|
[440] | 3486 | }
|
---|
| 3487 |
|
---|
[441] | 3488 |
|
---|
[693] | 3489 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3490 | {
|
---|
| 3491 | ViewCellContainer leaves;
|
---|
| 3492 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3493 |
|
---|
| 3494 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3495 |
|
---|
| 3496 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3497 | float subdivVol = 0;
|
---|
| 3498 | float newVol = 0;
|
---|
| 3499 |
|
---|
| 3500 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3501 | {
|
---|
| 3502 | BspNodeGeometry geom;
|
---|
[1551] | 3503 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3504 |
|
---|
| 3505 | const float lVol = geom.GetVolume();
|
---|
| 3506 | newVol += lVol;
|
---|
| 3507 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3508 |
|
---|
[1551] | 3509 | const float thres = 0.9f;
|
---|
[694] | 3510 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3511 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3512 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3513 | }
|
---|
| 3514 |
|
---|
| 3515 | Debug << "exact volume: " << vol << endl;
|
---|
| 3516 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3517 | Debug << "new volume: " << newVol << endl;
|
---|
| 3518 | }
|
---|
| 3519 |
|
---|
| 3520 |
|
---|
[580] | 3521 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3522 | ViewCell *vc,
|
---|
[1416] | 3523 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3524 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3525 | ) const
|
---|
[1557] | 3526 | {
|
---|
[660] | 3527 | if (clipPlane)
|
---|
[591] | 3528 | {
|
---|
[1047] | 3529 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3530 |
|
---|
[726] | 3531 | ViewCellContainer leaves;
|
---|
| 3532 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3533 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3534 |
|
---|
[726] | 3535 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3536 | {
|
---|
[726] | 3537 | BspNodeGeometry geom;
|
---|
[681] | 3538 | BspNodeGeometry front;
|
---|
| 3539 | BspNodeGeometry back;
|
---|
[591] | 3540 |
|
---|
[1551] | 3541 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3542 |
|
---|
[1563] | 3543 | const float eps = 0.0001f;
|
---|
[1047] | 3544 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3545 |
|
---|
| 3546 | if (cf == -1)
|
---|
| 3547 | {
|
---|
| 3548 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3549 | }
|
---|
| 3550 | else if (cf == 0)
|
---|
| 3551 | {
|
---|
| 3552 | geom.SplitGeometry(front,
|
---|
| 3553 | back,
|
---|
[1047] | 3554 | plane,
|
---|
[726] | 3555 | mViewSpaceBox,
|
---|
| 3556 | eps);
|
---|
[1563] | 3557 |
|
---|
[726] | 3558 | if (back.Valid())
|
---|
[1563] | 3559 | {
|
---|
[726] | 3560 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3561 | }
|
---|
| 3562 | }
|
---|
[681] | 3563 | }
|
---|
[591] | 3564 | }
|
---|
| 3565 | else
|
---|
| 3566 | {
|
---|
[1563] | 3567 | // export mesh if available
|
---|
| 3568 | // TODO: some bug here?
|
---|
| 3569 | if (1 && vc->GetMesh())
|
---|
| 3570 | {
|
---|
| 3571 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3572 | }
|
---|
| 3573 | else
|
---|
| 3574 | {
|
---|
| 3575 | BspNodeGeometry geom;
|
---|
| 3576 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3577 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3578 | }
|
---|
[591] | 3579 | }
|
---|
[482] | 3580 | }
|
---|
| 3581 |
|
---|
[503] | 3582 |
|
---|
| 3583 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3584 | {
|
---|
[1551] | 3585 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3586 | BspNodeGeometry geom;
|
---|
| 3587 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3588 |
|
---|
[1001] | 3589 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3590 |
|
---|
[840] | 3591 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3592 | vc->SetMesh(mesh);
|
---|
[503] | 3593 | }
|
---|
| 3594 |
|
---|
[551] | 3595 |
|
---|
[587] | 3596 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3597 | const bool createMesh)
|
---|
[502] | 3598 | {
|
---|
[587] | 3599 | float area = 0;
|
---|
| 3600 | float volume = 0;
|
---|
[572] | 3601 |
|
---|
[587] | 3602 | ViewCellContainer leaves;
|
---|
| 3603 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3604 |
|
---|
| 3605 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3606 |
|
---|
[693] | 3607 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3608 | {
|
---|
| 3609 | BspNodeGeometry geom;
|
---|
| 3610 |
|
---|
[1551] | 3611 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3612 |
|
---|
[719] | 3613 | const float lVol = geom.GetVolume();
|
---|
| 3614 | const float lArea = geom.GetArea();
|
---|
[693] | 3615 |
|
---|
| 3616 | area += lArea;
|
---|
| 3617 | volume += lVol;
|
---|
[1551] | 3618 |
|
---|
| 3619 | CreateMesh(*it);
|
---|
[587] | 3620 | }
|
---|
| 3621 |
|
---|
| 3622 | viewCell->SetVolume(volume);
|
---|
| 3623 | viewCell->SetArea(area);
|
---|
[502] | 3624 | }
|
---|
| 3625 |
|
---|
[580] | 3626 |
|
---|
[879] | 3627 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3628 | {
|
---|
[1021] | 3629 | if (!ViewCellsConstructed())
|
---|
[1545] | 3630 | {
|
---|
[587] | 3631 | return NULL;
|
---|
[1545] | 3632 | }
|
---|
[587] | 3633 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3634 | {
|
---|
[587] | 3635 | return NULL;
|
---|
[1545] | 3636 | }
|
---|
[587] | 3637 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3638 | }
|
---|
| 3639 |
|
---|
| 3640 |
|
---|
[587] | 3641 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3642 | vector<MergeCandidate> &candidates)
|
---|
| 3643 | {
|
---|
| 3644 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3645 |
|
---|
| 3646 | if (mUseRaysForMerge)
|
---|
| 3647 | {
|
---|
| 3648 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3649 | }
|
---|
| 3650 | else
|
---|
| 3651 | {
|
---|
| 3652 | vector<BspLeaf *> leaves;
|
---|
| 3653 | mBspTree->CollectLeaves(leaves);
|
---|
| 3654 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3655 | }
|
---|
| 3656 |
|
---|
| 3657 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3658 | }
|
---|
| 3659 |
|
---|
| 3660 |
|
---|
[440] | 3661 |
|
---|
[1047] | 3662 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3663 | const bool exportPvs,
|
---|
| 3664 | const ObjectContainer &objects)
|
---|
[590] | 3665 | {
|
---|
[1551] | 3666 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3667 | {
|
---|
| 3668 | return false;
|
---|
| 3669 | }
|
---|
| 3670 |
|
---|
[590] | 3671 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3672 |
|
---|
[1551] | 3673 | OUT_STREAM stream(filename.c_str());
|
---|
| 3674 |
|
---|
[590] | 3675 | // for output we need unique ids for each view cell
|
---|
| 3676 | CreateUniqueViewCellIds();
|
---|
[503] | 3677 |
|
---|
[590] | 3678 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3679 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3680 |
|
---|
[1551] | 3681 | if (exportPvs)
|
---|
| 3682 | {
|
---|
| 3683 | //////////
|
---|
| 3684 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3685 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3686 |
|
---|
[1551] | 3687 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3688 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3689 |
|
---|
[1551] | 3690 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3691 | {
|
---|
[1563] | 3692 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3693 |
|
---|
[1563] | 3694 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3695 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3696 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3697 | }
|
---|
[590] | 3698 |
|
---|
[1551] | 3699 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3700 | }
|
---|
| 3701 |
|
---|
| 3702 | ///////////
|
---|
| 3703 | //-- export the view cells and the pvs
|
---|
| 3704 |
|
---|
| 3705 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3706 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3707 |
|
---|
| 3708 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 3709 |
|
---|
[590] | 3710 | stream << "</ViewCells>" << endl;
|
---|
| 3711 |
|
---|
[1551] | 3712 | /////////////
|
---|
| 3713 | //-- export the view space hierarchy
|
---|
| 3714 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 3715 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3716 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 3717 |
|
---|
[590] | 3718 | mBspTree->Export(stream);
|
---|
| 3719 |
|
---|
[1551] | 3720 | // end tags
|
---|
| 3721 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 3722 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3723 |
|
---|
[1551] | 3724 | stream.close();
|
---|
[590] | 3725 | cout << "finished" << endl;
|
---|
[1551] | 3726 |
|
---|
[590] | 3727 | return true;
|
---|
| 3728 | }
|
---|
| 3729 |
|
---|
| 3730 |
|
---|
[1545] | 3731 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 3732 | {
|
---|
| 3733 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 3734 |
|
---|
| 3735 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3736 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1545] | 3737 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 3738 |
|
---|
| 3739 | float volume = 0;
|
---|
| 3740 | vector<BspLeaf *> leaves;
|
---|
| 3741 | mBspTree->CollectLeaves(leaves);
|
---|
| 3742 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 3743 | ViewCell::NewMail();
|
---|
| 3744 |
|
---|
[1545] | 3745 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 3746 | {
|
---|
| 3747 | BspLeaf *leaf = *lit;
|
---|
| 3748 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 3749 |
|
---|
[1548] | 3750 | if (!vc->Mailed())
|
---|
| 3751 | {
|
---|
| 3752 | vc->Mail();
|
---|
| 3753 | vc->SetMergeCost(0.0f);
|
---|
| 3754 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 3755 |
|
---|
[1548] | 3756 | volume += vc->GetVolume();
|
---|
| 3757 | volume += vc->GetVolume();
|
---|
| 3758 | vcRoot->SetVolume(volume);
|
---|
| 3759 | }
|
---|
[1545] | 3760 | }
|
---|
| 3761 |
|
---|
| 3762 | return vcRoot;
|
---|
| 3763 | }
|
---|
| 3764 |
|
---|
| 3765 |
|
---|
[650] | 3766 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3767 | {
|
---|
[752] | 3768 | // terminate recursion
|
---|
[650] | 3769 | if (root->IsLeaf())
|
---|
| 3770 | {
|
---|
[752] | 3771 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3772 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3773 | return leaf->GetViewCell();
|
---|
[650] | 3774 | }
|
---|
| 3775 |
|
---|
| 3776 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3777 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3778 |
|
---|
[752] | 3779 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3780 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[650] | 3781 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3782 |
|
---|
[650] | 3783 | float volume = 0;
|
---|
[649] | 3784 |
|
---|
[650] | 3785 | BspNode *front = interior->GetFront();
|
---|
| 3786 | BspNode *back = interior->GetBack();
|
---|
[649] | 3787 |
|
---|
[752] | 3788 |
|
---|
[1545] | 3789 | ////////////
|
---|
[752] | 3790 | //-- recursivly compute child hierarchies
|
---|
[1545] | 3791 |
|
---|
[650] | 3792 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3793 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3794 |
|
---|
[752] | 3795 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3796 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3797 |
|
---|
[650] | 3798 | volume += backVc->GetVolume();
|
---|
| 3799 | volume += frontVc->GetVolume();
|
---|
[649] | 3800 |
|
---|
[650] | 3801 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3802 |
|
---|
[650] | 3803 | return viewCellInterior;
|
---|
[610] | 3804 | }
|
---|
| 3805 |
|
---|
[650] | 3806 |
|
---|
[590] | 3807 | /************************************************************************/
|
---|
| 3808 | /* KdViewCellsManager implementation */
|
---|
| 3809 | /************************************************************************/
|
---|
| 3810 |
|
---|
| 3811 |
|
---|
| 3812 |
|
---|
[1264] | 3813 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3814 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3815 | {
|
---|
| 3816 | }
|
---|
| 3817 |
|
---|
[605] | 3818 |
|
---|
[471] | 3819 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3820 | {
|
---|
[479] | 3821 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3822 | if (0)
|
---|
| 3823 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3824 | else
|
---|
| 3825 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3826 | }
|
---|
| 3827 |
|
---|
| 3828 |
|
---|
| 3829 |
|
---|
[479] | 3830 |
|
---|
[480] | 3831 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3832 | {
|
---|
| 3833 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3834 | }
|
---|
[479] | 3835 |
|
---|
[519] | 3836 |
|
---|
[574] | 3837 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3838 | const VssRayContainer &rays)
|
---|
[440] | 3839 | {
|
---|
[441] | 3840 | // if view cells already constructed
|
---|
[440] | 3841 | if (ViewCellsConstructed())
|
---|
| 3842 | return 0;
|
---|
[441] | 3843 |
|
---|
[440] | 3844 | mKdTree->Construct();
|
---|
| 3845 |
|
---|
[480] | 3846 | mTotalAreaValid = false;
|
---|
[469] | 3847 | // create the view cells
|
---|
| 3848 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3849 | // cast rays
|
---|
[574] | 3850 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3851 |
|
---|
[479] | 3852 | EvaluateViewCellsStats();
|
---|
[660] | 3853 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3854 |
|
---|
[440] | 3855 | return 0;
|
---|
| 3856 | }
|
---|
| 3857 |
|
---|
[587] | 3858 |
|
---|
[440] | 3859 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3860 | {
|
---|
| 3861 | return mKdTree->GetRoot() != NULL;
|
---|
| 3862 | }
|
---|
| 3863 |
|
---|
[1020] | 3864 |
|
---|
[503] | 3865 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3866 | const VssRayContainer &rays)
|
---|
[440] | 3867 | {
|
---|
| 3868 | return 0;
|
---|
| 3869 | }
|
---|
| 3870 |
|
---|
[1020] | 3871 |
|
---|
[1570] | 3872 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3873 | const int maxViewCells,
|
---|
| 3874 | const bool sortViewCells,
|
---|
| 3875 | const bool exportPvs,
|
---|
| 3876 | const bool exportRays,
|
---|
| 3877 | const int maxRays,
|
---|
| 3878 | const string prefix,
|
---|
| 3879 | VssRayContainer *visRays)
|
---|
| 3880 | {
|
---|
| 3881 | // TODO
|
---|
| 3882 | }
|
---|
| 3883 |
|
---|
| 3884 |
|
---|
[440] | 3885 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3886 | const VssRayContainer &sampleRays)
|
---|
[440] | 3887 | {
|
---|
[441] | 3888 | if (!ViewCellsConstructed())
|
---|
| 3889 | return;
|
---|
| 3890 |
|
---|
[469] | 3891 | // using view cells instead of the kd PVS of objects
|
---|
| 3892 | const bool useViewCells = true;
|
---|
| 3893 | bool exportRays = false;
|
---|
[440] | 3894 |
|
---|
| 3895 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3896 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3897 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3898 |
|
---|
[469] | 3899 | if (useViewCells)
|
---|
[440] | 3900 | {
|
---|
[469] | 3901 | const int leafOut = 10;
|
---|
[503] | 3902 |
|
---|
[469] | 3903 | ViewCell::NewMail();
|
---|
[503] | 3904 |
|
---|
[469] | 3905 | //-- some rays for output
|
---|
| 3906 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3907 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3908 |
|
---|
| 3909 | //-- some random view cells and rays for output
|
---|
| 3910 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3911 |
|
---|
[469] | 3912 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3913 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3914 |
|
---|
[469] | 3915 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3916 | {
|
---|
[469] | 3917 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3918 | RayContainer vcRays;
|
---|
[503] | 3919 |
|
---|
[469] | 3920 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3921 | #if 0
|
---|
[469] | 3922 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3923 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3924 | {
|
---|
[469] | 3925 | Ray *ray = sampleRays[k];
|
---|
[503] | 3926 |
|
---|
[469] | 3927 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3928 | {
|
---|
| 3929 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3930 |
|
---|
| 3931 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3932 | {
|
---|
| 3933 | vcRays.push_back(ray);
|
---|
| 3934 | }
|
---|
| 3935 | }
|
---|
[479] | 3936 | }
|
---|
[503] | 3937 | #endif
|
---|
[469] | 3938 | Intersectable::NewMail();
|
---|
[503] | 3939 |
|
---|
[469] | 3940 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 3941 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 3942 |
|
---|
[1570] | 3943 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3944 | exporter->SetFilled();
|
---|
| 3945 |
|
---|
| 3946 | exporter->SetWireframe();
|
---|
| 3947 | //exporter->SetFilled();
|
---|
[503] | 3948 |
|
---|
[469] | 3949 | Material m;//= RandomMaterial();
|
---|
| 3950 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3951 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3952 |
|
---|
[469] | 3953 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3954 | exporter->ExportBox(box);
|
---|
| 3955 |
|
---|
| 3956 | // export rays piercing this view cell
|
---|
[503] | 3957 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3958 |
|
---|
[469] | 3959 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3960 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3961 |
|
---|
[469] | 3962 | // exporter->SetWireframe();
|
---|
| 3963 | exporter->SetFilled();
|
---|
[503] | 3964 |
|
---|
[1742] | 3965 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
| 3966 |
|
---|
| 3967 | while (pit.HasMoreEntries())
|
---|
| 3968 | {
|
---|
| 3969 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3970 |
|
---|
| 3971 | //-- output PVS of view cell
|
---|
| 3972 | Intersectable *intersect = entry.mObject;
|
---|
[469] | 3973 | if (!intersect->Mailed())
|
---|
| 3974 | {
|
---|
| 3975 | exporter->ExportIntersectable(intersect);
|
---|
| 3976 | intersect->Mail();
|
---|
[503] | 3977 | }
|
---|
[440] | 3978 | }
|
---|
[503] | 3979 |
|
---|
[469] | 3980 | DEL_PTR(exporter);
|
---|
| 3981 | cout << "finished" << endl;
|
---|
[440] | 3982 | }
|
---|
[469] | 3983 |
|
---|
| 3984 | DEL_PTR(rays);
|
---|
[440] | 3985 | }
|
---|
[469] | 3986 | else // using kd PVS of objects
|
---|
| 3987 | {
|
---|
| 3988 | for (int i = 0; i < limit; ++ i)
|
---|
| 3989 | {
|
---|
| 3990 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3991 |
|
---|
[469] | 3992 | // check whether we can add this to the rays
|
---|
[503] | 3993 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3994 | {
|
---|
| 3995 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3996 | {
|
---|
| 3997 | rays[j].push_back(ray);
|
---|
| 3998 | }
|
---|
| 3999 | }
|
---|
| 4000 | }
|
---|
[440] | 4001 |
|
---|
[503] | 4002 | if (exportRays)
|
---|
[469] | 4003 | {
|
---|
| 4004 | Exporter *exporter = NULL;
|
---|
| 4005 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 4006 | exporter->SetWireframe();
|
---|
| 4007 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 4008 |
|
---|
[1757] | 4009 | for (int i = 0; i < pvsOut; i++)
|
---|
[469] | 4010 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 4011 |
|
---|
| 4012 | exporter->SetFilled();
|
---|
| 4013 | delete exporter;
|
---|
| 4014 | }
|
---|
[440] | 4015 |
|
---|
[503] | 4016 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 4017 | {
|
---|
| 4018 | Intersectable *object = objects[k];
|
---|
[1757] | 4019 | char str[64]; sprintf(str, "viewcell%04d.wrl", k);
|
---|
[440] | 4020 |
|
---|
[1570] | 4021 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 4022 | exporter->SetWireframe();
|
---|
[503] | 4023 |
|
---|
[1736] | 4024 | // matt: no kd pvs
|
---|
| 4025 | /*
|
---|
[1233] | 4026 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 4027 | Intersectable::NewMail();
|
---|
[503] | 4028 |
|
---|
[469] | 4029 | // avoid adding the object to the list
|
---|
| 4030 | object->Mail();
|
---|
| 4031 | ObjectContainer visibleObjects;
|
---|
[503] | 4032 |
|
---|
[1233] | 4033 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 4034 | {
|
---|
[1233] | 4035 | KdNode *node = (*kit).first;
|
---|
[469] | 4036 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 4037 |
|
---|
[469] | 4038 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 4039 | }
|
---|
[503] | 4040 |
|
---|
[469] | 4041 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 4042 | exporter->SetFilled();
|
---|
[503] | 4043 |
|
---|
[469] | 4044 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 4045 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 4046 |
|
---|
[469] | 4047 | Material m;
|
---|
| 4048 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4049 | exporter->SetForcedMaterial(m);
|
---|
| 4050 | exporter->ExportIntersectable(object);
|
---|
[1736] | 4051 | */
|
---|
[469] | 4052 | delete exporter;
|
---|
[440] | 4053 | }
|
---|
[503] | 4054 | }
|
---|
[440] | 4055 | }
|
---|
| 4056 |
|
---|
[469] | 4057 |
|
---|
[580] | 4058 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4059 | {
|
---|
| 4060 | return new KdViewCell(mesh);
|
---|
| 4061 | }
|
---|
[482] | 4062 |
|
---|
[580] | 4063 |
|
---|
| 4064 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4065 | ViewCell *vc,
|
---|
[1416] | 4066 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4067 | const AxisAlignedPlane *clipPlane
|
---|
| 4068 | ) const
|
---|
[482] | 4069 | {
|
---|
[580] | 4070 | ViewCellContainer leaves;
|
---|
| 4071 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4072 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4073 |
|
---|
| 4074 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4075 | {
|
---|
| 4076 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 4077 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 4078 | }
|
---|
[482] | 4079 | }
|
---|
| 4080 |
|
---|
| 4081 |
|
---|
[440] | 4082 | int KdViewCellsManager::GetType() const
|
---|
| 4083 | {
|
---|
| 4084 | return ViewCellsManager::KD;
|
---|
| 4085 | }
|
---|
| 4086 |
|
---|
| 4087 |
|
---|
[441] | 4088 |
|
---|
[440] | 4089 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 4090 | {
|
---|
| 4091 | KdNode *node = leaf;
|
---|
| 4092 |
|
---|
| 4093 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 4094 | node = node->mParent;
|
---|
[1176] | 4095 |
|
---|
[440] | 4096 | return node;
|
---|
| 4097 | }
|
---|
| 4098 |
|
---|
[469] | 4099 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4100 | const Vector3 &termination,
|
---|
| 4101 | ViewCellContainer &viewcells)
|
---|
[466] | 4102 | {
|
---|
[469] | 4103 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 4104 | }
|
---|
| 4105 |
|
---|
[469] | 4106 |
|
---|
[503] | 4107 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4108 | {
|
---|
[551] | 4109 | // TODO
|
---|
[503] | 4110 | }
|
---|
| 4111 |
|
---|
[580] | 4112 |
|
---|
| 4113 |
|
---|
| 4114 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4115 | vector<MergeCandidate> &candidates)
|
---|
| 4116 | {
|
---|
| 4117 | // TODO
|
---|
| 4118 | }
|
---|
| 4119 |
|
---|
[1021] | 4120 |
|
---|
| 4121 |
|
---|
[503] | 4122 | /**************************************************************************/
|
---|
| 4123 | /* VspBspViewCellsManager implementation */
|
---|
| 4124 | /**************************************************************************/
|
---|
[482] | 4125 |
|
---|
[503] | 4126 |
|
---|
[1264] | 4127 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 4128 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 4129 | {
|
---|
[1004] | 4130 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 4131 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 4132 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 4133 | }
|
---|
| 4134 |
|
---|
[477] | 4135 |
|
---|
[475] | 4136 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 4137 | {
|
---|
| 4138 | }
|
---|
| 4139 |
|
---|
[477] | 4140 |
|
---|
[471] | 4141 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 4142 | {
|
---|
[551] | 4143 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 4144 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 4145 | else
|
---|
| 4146 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 4147 | }
|
---|
| 4148 |
|
---|
[477] | 4149 |
|
---|
[480] | 4150 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 4151 | {
|
---|
[1545] | 4152 | // view cells tree constructed?
|
---|
[581] | 4153 | if (!ViewCellsTreeConstructed())
|
---|
| 4154 | {
|
---|
[590] | 4155 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 4156 | }
|
---|
| 4157 | else
|
---|
[1264] | 4158 | {
|
---|
| 4159 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 4160 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 4161 | }
|
---|
[480] | 4162 | }
|
---|
| 4163 |
|
---|
| 4164 |
|
---|
[1021] | 4165 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4166 | vector<MergeCandidate> &candidates)
|
---|
| 4167 | {
|
---|
| 4168 | cout << "collecting merge candidates ... " << endl;
|
---|
| 4169 |
|
---|
| 4170 | if (mUseRaysForMerge)
|
---|
| 4171 | {
|
---|
| 4172 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 4173 | }
|
---|
| 4174 | else
|
---|
| 4175 | {
|
---|
| 4176 | vector<BspLeaf *> leaves;
|
---|
| 4177 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 4178 |
|
---|
| 4179 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 4180 | }
|
---|
| 4181 |
|
---|
| 4182 | cout << "fininshed collecting candidates" << endl;
|
---|
| 4183 | }
|
---|
| 4184 |
|
---|
| 4185 |
|
---|
[442] | 4186 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4187 | {
|
---|
| 4188 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 4189 | }
|
---|
| 4190 |
|
---|
[462] | 4191 |
|
---|
[442] | 4192 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4193 | {
|
---|
| 4194 | return new BspViewCell(mesh);
|
---|
| 4195 | }
|
---|
| 4196 |
|
---|
[569] | 4197 |
|
---|
[574] | 4198 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 4199 | const VssRayContainer &rays)
|
---|
[442] | 4200 | {
|
---|
[710] | 4201 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4202 |
|
---|
[503] | 4203 | // if view cells were already constructed
|
---|
| 4204 | if (ViewCellsConstructed())
|
---|
[1545] | 4205 | {
|
---|
[503] | 4206 | return 0;
|
---|
[1545] | 4207 | }
|
---|
[442] | 4208 |
|
---|
[503] | 4209 | int sampleContributions = 0;
|
---|
| 4210 | VssRayContainer sampleRays;
|
---|
| 4211 |
|
---|
[1545] | 4212 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 4213 |
|
---|
[660] | 4214 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 4215 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 4216 |
|
---|
[1545] | 4217 | VssRayContainer savedRays;
|
---|
[487] | 4218 |
|
---|
[1545] | 4219 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4220 | {
|
---|
| 4221 | VssRayContainer constructionRays;
|
---|
| 4222 |
|
---|
| 4223 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 4224 |
|
---|
[1545] | 4225 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 4226 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 4227 |
|
---|
[667] | 4228 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 4229 | }
|
---|
[666] | 4230 | else
|
---|
[1221] | 4231 | {
|
---|
[1545] | 4232 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 4233 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 4234 | }
|
---|
[667] | 4235 |
|
---|
[490] | 4236 | // collapse invalid regions
|
---|
[491] | 4237 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 4238 | long startTime = GetTime();
|
---|
| 4239 |
|
---|
[1002] | 4240 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 4241 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4242 | << " seconds" << endl;
|
---|
| 4243 |
|
---|
[495] | 4244 | cout << "finished" << endl;
|
---|
[503] | 4245 |
|
---|
[1444] | 4246 | /////////////////
|
---|
[1221] | 4247 | //-- stats after construction
|
---|
| 4248 |
|
---|
[660] | 4249 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 4250 |
|
---|
[480] | 4251 | ResetViewCells();
|
---|
[660] | 4252 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 4253 |
|
---|
[491] | 4254 |
|
---|
[1444] | 4255 | //////////////////////
|
---|
[1545] | 4256 | //-- recast the rest of the rays
|
---|
[1570] | 4257 |
|
---|
[495] | 4258 | startTime = GetTime();
|
---|
[503] | 4259 |
|
---|
[491] | 4260 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 4261 |
|
---|
| 4262 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4263 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 4264 |
|
---|
[491] | 4265 | cout << "finished" << endl;
|
---|
| 4266 |
|
---|
[503] | 4267 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 4268 | << " secs" << endl;
|
---|
[442] | 4269 |
|
---|
[485] | 4270 | cout << "construction finished" << endl;
|
---|
[503] | 4271 |
|
---|
[719] | 4272 | if (0)
|
---|
[1545] | 4273 | { ////////
|
---|
[1077] | 4274 | //-- real meshes are contructed at this stage
|
---|
[1768] | 4275 |
|
---|
[719] | 4276 | cout << "finalizing view cells ... ";
|
---|
| 4277 | FinalizeViewCells(true);
|
---|
| 4278 | cout << "finished" << endl;
|
---|
| 4279 | }
|
---|
| 4280 |
|
---|
[442] | 4281 | return sampleContributions;
|
---|
| 4282 | }
|
---|
| 4283 |
|
---|
[489] | 4284 |
|
---|
[503] | 4285 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 4286 | const ObjectContainer &objects)
|
---|
[475] | 4287 | {
|
---|
[442] | 4288 | int vcSize = 0;
|
---|
| 4289 | int pvsSize = 0;
|
---|
| 4290 |
|
---|
[650] | 4291 | //-- merge view cells
|
---|
| 4292 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 4293 | long startTime = GetTime();
|
---|
| 4294 |
|
---|
| 4295 |
|
---|
[597] | 4296 | if (mMergeViewCells)
|
---|
| 4297 | {
|
---|
| 4298 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 4299 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 4300 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 4301 | }
|
---|
| 4302 | else
|
---|
| 4303 | {
|
---|
[710] | 4304 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4305 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 4306 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 4307 |
|
---|
| 4308 | // compute pvs
|
---|
| 4309 | ObjectPvs pvs;
|
---|
| 4310 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 4311 | }
|
---|
[442] | 4312 |
|
---|
[666] | 4313 | if (1)
|
---|
| 4314 | {
|
---|
| 4315 | char mstats[100];
|
---|
[752] | 4316 | ObjectPvs pvs;
|
---|
| 4317 |
|
---|
[1004] | 4318 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 4319 | mViewCellsTree->ExportStats(mstats);
|
---|
| 4320 | }
|
---|
[485] | 4321 |
|
---|
[650] | 4322 | cout << "merged view cells in "
|
---|
| 4323 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 4324 |
|
---|
[650] | 4325 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 4326 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 4327 |
|
---|
| 4328 |
|
---|
[1444] | 4329 | //////////////////
|
---|
| 4330 | //-- stats and visualizations
|
---|
| 4331 |
|
---|
[600] | 4332 | int savedColorCode = mColorCode;
|
---|
| 4333 |
|
---|
[660] | 4334 | // get currently active view cell set
|
---|
| 4335 | ResetViewCells();
|
---|
| 4336 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 4337 |
|
---|
[1616] | 4338 | if (mShowVisualization) // export merged view cells
|
---|
[483] | 4339 | {
|
---|
[600] | 4340 | mColorCode = 0;
|
---|
[744] | 4341 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 4342 |
|
---|
[485] | 4343 | cout << "exporting view cells after merge ... ";
|
---|
| 4344 |
|
---|
| 4345 | if (exporter)
|
---|
[483] | 4346 | {
|
---|
[600] | 4347 | if (0)
|
---|
| 4348 | exporter->SetWireframe();
|
---|
| 4349 | else
|
---|
| 4350 | exporter->SetFilled();
|
---|
| 4351 |
|
---|
[1760] | 4352 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[600] | 4353 |
|
---|
[485] | 4354 | if (mExportGeometry)
|
---|
[483] | 4355 | {
|
---|
[485] | 4356 | Material m;
|
---|
| 4357 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4358 | exporter->SetForcedMaterial(m);
|
---|
| 4359 | exporter->SetFilled();
|
---|
[442] | 4360 |
|
---|
[485] | 4361 | exporter->ExportGeometry(objects);
|
---|
[442] | 4362 | }
|
---|
[485] | 4363 |
|
---|
[600] | 4364 | delete exporter;
|
---|
| 4365 | }
|
---|
| 4366 | cout << "finished" << endl;
|
---|
| 4367 | }
|
---|
| 4368 |
|
---|
[1616] | 4369 | if (mShowVisualization)
|
---|
[600] | 4370 | {
|
---|
[1416] | 4371 | // use pvs size for color coding
|
---|
| 4372 | mColorCode = 1;
|
---|
[744] | 4373 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 4374 |
|
---|
[600] | 4375 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 4376 |
|
---|
| 4377 | if (exporter)
|
---|
| 4378 | {
|
---|
[1416] | 4379 | exporter->SetFilled();
|
---|
[598] | 4380 |
|
---|
[1760] | 4381 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[598] | 4382 |
|
---|
[600] | 4383 | if (mExportGeometry)
|
---|
| 4384 | {
|
---|
| 4385 | Material m;
|
---|
| 4386 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4387 | exporter->SetForcedMaterial(m);
|
---|
| 4388 | exporter->SetFilled();
|
---|
| 4389 |
|
---|
| 4390 | exporter->ExportGeometry(objects);
|
---|
| 4391 | }
|
---|
| 4392 |
|
---|
[485] | 4393 | delete exporter;
|
---|
[442] | 4394 | }
|
---|
[485] | 4395 | cout << "finished" << endl;
|
---|
[442] | 4396 | }
|
---|
[600] | 4397 |
|
---|
| 4398 | mColorCode = savedColorCode;
|
---|
[503] | 4399 | }
|
---|
[475] | 4400 |
|
---|
[503] | 4401 |
|
---|
[564] | 4402 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 4403 | const ObjectContainer &objects)
|
---|
[503] | 4404 | {
|
---|
[485] | 4405 | mRenderer->RenderScene();
|
---|
[1616] | 4406 |
|
---|
[503] | 4407 | SimulationStatistics ss;
|
---|
[485] | 4408 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 4409 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 4410 |
|
---|
[1414] | 4411 | const long startTime = GetTime();
|
---|
[489] | 4412 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 4413 |
|
---|
| 4414 | // refining the merged view cells
|
---|
[580] | 4415 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 4416 |
|
---|
[442] | 4417 | //-- stats and visualizations
|
---|
| 4418 | cout << "finished" << endl;
|
---|
[485] | 4419 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 4420 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 4421 |
|
---|
[485] | 4422 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 4423 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 4424 | }
|
---|
[495] | 4425 |
|
---|
[517] | 4426 |
|
---|
[503] | 4427 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4428 | const VssRayContainer &rays)
|
---|
[840] | 4429 | {
|
---|
[503] | 4430 | if (!ViewCellsConstructed())
|
---|
| 4431 | {
|
---|
[517] | 4432 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4433 | return 0;
|
---|
| 4434 | }
|
---|
[520] | 4435 |
|
---|
[609] | 4436 | // view cells already finished before post processing step
|
---|
| 4437 | // (i.e. because they were loaded)
|
---|
[520] | 4438 | if (mViewCellsFinished)
|
---|
[542] | 4439 | {
|
---|
[551] | 4440 | FinalizeViewCells(true);
|
---|
[542] | 4441 | EvaluateViewCellsStats();
|
---|
[577] | 4442 |
|
---|
[517] | 4443 | return 0;
|
---|
[542] | 4444 | }
|
---|
[448] | 4445 |
|
---|
[710] | 4446 | // check if new view cells turned invalid
|
---|
| 4447 | int minPvs, maxPvs;
|
---|
[564] | 4448 |
|
---|
[710] | 4449 | if (0)
|
---|
| 4450 | {
|
---|
| 4451 | minPvs = mMinPvsSize;
|
---|
| 4452 | maxPvs = mMaxPvsSize;
|
---|
| 4453 | }
|
---|
| 4454 | else
|
---|
| 4455 | {
|
---|
[1414] | 4456 | // problem matt: why did I start here from zero?
|
---|
| 4457 | minPvs = 0;
|
---|
[710] | 4458 | maxPvs = mMaxPvsSize;
|
---|
| 4459 | }
|
---|
[720] | 4460 |
|
---|
[710] | 4461 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4462 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4463 |
|
---|
| 4464 | SetValidity(minPvs, maxPvs);
|
---|
| 4465 |
|
---|
[574] | 4466 | // update valid view space according to valid view cells
|
---|
[720] | 4467 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4468 |
|
---|
[720] | 4469 | // area has to be recomputed
|
---|
[574] | 4470 | mTotalAreaValid = false;
|
---|
[517] | 4471 | VssRayContainer postProcessRays;
|
---|
[605] | 4472 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4473 |
|
---|
[517] | 4474 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4475 |
|
---|
[1444] | 4476 | //////////
|
---|
[1768] | 4477 | //-- merge neighbouring view cells
|
---|
[597] | 4478 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4479 |
|
---|
[1444] | 4480 | // refines the merged view cells
|
---|
[720] | 4481 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4482 |
|
---|
[1444] | 4483 |
|
---|
| 4484 | ///////////
|
---|
[660] | 4485 | //-- render simulation after merge + refine
|
---|
[1414] | 4486 |
|
---|
[1415] | 4487 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4488 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4489 | SimulationStatistics ss;
|
---|
| 4490 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4491 | cout << ss << endl;
|
---|
[1414] | 4492 |
|
---|
[1843] | 4493 | if (0) CompressViewCells();
|
---|
| 4494 |
|
---|
[517] | 4495 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4496 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4497 |
|
---|
[574] | 4498 | // recompute view cell list and statistics
|
---|
[520] | 4499 | ResetViewCells();
|
---|
| 4500 |
|
---|
[719] | 4501 | // compute final meshes and volume / area
|
---|
| 4502 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4503 |
|
---|
[503] | 4504 | return 0;
|
---|
[442] | 4505 | }
|
---|
| 4506 |
|
---|
[490] | 4507 |
|
---|
[442] | 4508 | int VspBspViewCellsManager::GetType() const
|
---|
| 4509 | {
|
---|
| 4510 | return VSP_BSP;
|
---|
| 4511 | }
|
---|
| 4512 |
|
---|
| 4513 |
|
---|
[650] | 4514 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4515 | {
|
---|
[752] | 4516 | // terminate recursion
|
---|
[650] | 4517 | if (root->IsLeaf())
|
---|
| 4518 | {
|
---|
[752] | 4519 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4520 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4521 | return leaf->GetViewCell();
|
---|
[650] | 4522 | }
|
---|
| 4523 |
|
---|
[752] | 4524 |
|
---|
[650] | 4525 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4526 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4527 |
|
---|
[752] | 4528 | // evaluate merge cost for priority traversal
|
---|
[650] | 4529 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4530 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4531 |
|
---|
[650] | 4532 | float volume = 0;
|
---|
| 4533 |
|
---|
| 4534 | BspNode *front = interior->GetFront();
|
---|
| 4535 | BspNode *back = interior->GetBack();
|
---|
[649] | 4536 |
|
---|
[752] | 4537 |
|
---|
| 4538 | ObjectPvs frontPvs, backPvs;
|
---|
| 4539 |
|
---|
| 4540 | //-- recursivly compute child hierarchies
|
---|
[650] | 4541 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4542 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4543 |
|
---|
[752] | 4544 |
|
---|
| 4545 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4546 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4547 |
|
---|
| 4548 | volume += backVc->GetVolume();
|
---|
| 4549 | volume += frontVc->GetVolume();
|
---|
| 4550 |
|
---|
| 4551 | viewCellInterior->SetVolume(volume);
|
---|
| 4552 |
|
---|
| 4553 | return viewCellInterior;
|
---|
[609] | 4554 | }
|
---|
| 4555 |
|
---|
| 4556 |
|
---|
[490] | 4557 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4558 | {
|
---|
| 4559 | if (!ViewCellsConstructed())
|
---|
| 4560 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4561 |
|
---|
| 4562 | // TODO: set reasonable limit
|
---|
| 4563 | const int limit = 20;
|
---|
| 4564 |
|
---|
| 4565 | for (int i = 0; i < limit; ++ i)
|
---|
| 4566 | {
|
---|
[542] | 4567 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4568 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4569 | {
|
---|
| 4570 | return true;
|
---|
| 4571 | }
|
---|
| 4572 | }
|
---|
[997] | 4573 |
|
---|
[490] | 4574 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4575 | return false;
|
---|
| 4576 | }
|
---|
| 4577 |
|
---|
| 4578 |
|
---|
| 4579 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4580 | {
|
---|
[1551] | 4581 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4582 | // validy update in preprocessor for all managers)
|
---|
| 4583 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4584 |
|
---|
[1551] | 4585 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4586 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4587 | }
|
---|
| 4588 |
|
---|
| 4589 |
|
---|
[442] | 4590 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4591 | const VssRayContainer &sampleRays)
|
---|
[442] | 4592 | {
|
---|
| 4593 | if (!ViewCellsConstructed())
|
---|
| 4594 | return;
|
---|
| 4595 |
|
---|
[485] | 4596 | VssRayContainer visRays;
|
---|
| 4597 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4598 |
|
---|
[1551] | 4599 | if (1)
|
---|
[1047] | 4600 | {
|
---|
[1416] | 4601 | //////////////////
|
---|
| 4602 | //-- export final view cell partition
|
---|
| 4603 |
|
---|
[1020] | 4604 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4605 |
|
---|
[442] | 4606 | if (exporter)
|
---|
| 4607 | {
|
---|
[580] | 4608 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4609 | if (0)
|
---|
[1563] | 4610 | { // export view space box
|
---|
[542] | 4611 | exporter->SetWireframe();
|
---|
| 4612 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4613 | exporter->SetFilled();
|
---|
| 4614 | }
|
---|
| 4615 |
|
---|
[1052] | 4616 | Material m;
|
---|
| 4617 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4618 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4619 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4620 |
|
---|
| 4621 | exporter->SetForcedMaterial(m);
|
---|
| 4622 |
|
---|
[1563] | 4623 | if (1 && mExportGeometry)
|
---|
[542] | 4624 | {
|
---|
[485] | 4625 | exporter->ExportGeometry(objects);
|
---|
[542] | 4626 | }
|
---|
[489] | 4627 |
|
---|
[1047] | 4628 | if (0 && mExportRays)
|
---|
[489] | 4629 | {
|
---|
[1052] | 4630 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4631 | }
|
---|
[1760] | 4632 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1020] | 4633 |
|
---|
[442] | 4634 | delete exporter;
|
---|
[580] | 4635 | cout << "finished" << endl;
|
---|
[442] | 4636 | }
|
---|
[557] | 4637 | }
|
---|
[503] | 4638 |
|
---|
[1551] | 4639 | ////////////////
|
---|
[442] | 4640 | //-- visualization of the BSP splits
|
---|
[1551] | 4641 |
|
---|
[442] | 4642 | bool exportSplits = false;
|
---|
[1004] | 4643 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4644 |
|
---|
[442] | 4645 | if (exportSplits)
|
---|
| 4646 | {
|
---|
| 4647 | cout << "exporting splits ... ";
|
---|
[485] | 4648 | ExportSplits(objects, visRays);
|
---|
[442] | 4649 | cout << "finished" << endl;
|
---|
| 4650 | }
|
---|
| 4651 |
|
---|
[1551] | 4652 | ////////
|
---|
[542] | 4653 | //-- export single view cells
|
---|
[1570] | 4654 |
|
---|
| 4655 | int leafOut;
|
---|
| 4656 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4657 | const int raysOut = 100;
|
---|
| 4658 |
|
---|
| 4659 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4660 | }
|
---|
| 4661 |
|
---|
[503] | 4662 |
|
---|
[485] | 4663 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4664 | const VssRayContainer &rays)
|
---|
[442] | 4665 | {
|
---|
| 4666 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4667 |
|
---|
[503] | 4668 | if (exporter)
|
---|
| 4669 | {
|
---|
| 4670 | Material m;
|
---|
[442] | 4671 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4672 | exporter->SetForcedMaterial(m);
|
---|
| 4673 | exporter->SetWireframe();
|
---|
[503] | 4674 |
|
---|
[448] | 4675 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4676 |
|
---|
| 4677 | // take forced material, else big scenes cannot be viewed
|
---|
| 4678 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4679 | exporter->SetForcedMaterial(m);
|
---|
| 4680 | exporter->SetFilled();
|
---|
| 4681 |
|
---|
| 4682 | exporter->ResetForcedMaterial();
|
---|
[503] | 4683 |
|
---|
[442] | 4684 | // export rays
|
---|
[485] | 4685 | if (mExportRays)
|
---|
[1545] | 4686 | {
|
---|
[485] | 4687 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4688 | }
|
---|
[503] | 4689 |
|
---|
[485] | 4690 | if (mExportGeometry)
|
---|
[1545] | 4691 | {
|
---|
[442] | 4692 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4693 | }
|
---|
[442] | 4694 | delete exporter;
|
---|
| 4695 | }
|
---|
| 4696 | }
|
---|
| 4697 |
|
---|
[503] | 4698 |
|
---|
[1570] | 4699 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4700 | const int maxViewCells,
|
---|
| 4701 | const bool sortViewCells,
|
---|
| 4702 | const bool exportPvs,
|
---|
| 4703 | const bool exportRays,
|
---|
| 4704 | const int maxRays,
|
---|
| 4705 | const string prefix,
|
---|
| 4706 | VssRayContainer *visRays)
|
---|
| 4707 | {
|
---|
[694] | 4708 | if (sortViewCells)
|
---|
[801] | 4709 | {
|
---|
[1570] | 4710 | // sort view cells to visualize the largest view cells
|
---|
[1789] | 4711 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[801] | 4712 | }
|
---|
| 4713 |
|
---|
[1566] | 4714 | //////////
|
---|
[1570] | 4715 | //-- some view cells for output
|
---|
[483] | 4716 |
|
---|
[1570] | 4717 | ViewCell::NewMail();
|
---|
| 4718 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 4719 |
|
---|
[478] | 4720 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4721 | {
|
---|
[478] | 4722 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4723 |
|
---|
[1570] | 4724 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 4725 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 4726 |
|
---|
[1570] | 4727 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 4728 | continue;
|
---|
| 4729 |
|
---|
| 4730 | vc->Mail();
|
---|
| 4731 |
|
---|
[801] | 4732 | ObjectPvs pvs;
|
---|
| 4733 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4734 |
|
---|
[1570] | 4735 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 4736 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4737 |
|
---|
[1709] | 4738 | const float pvsCost = mViewCellsTree->GetPvsCost(vc);
|
---|
| 4739 | cout << "view cell " << vc->GetId() << ": pvs cost=" << pvsCost << endl;
|
---|
[587] | 4740 |
|
---|
[1570] | 4741 | if (exportRays)
|
---|
[442] | 4742 | {
|
---|
[1566] | 4743 | ////////////
|
---|
| 4744 | //-- export rays piercing this view cell
|
---|
| 4745 |
|
---|
| 4746 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 4747 | VssRayContainer vcRays;
|
---|
| 4748 | VssRayContainer collectRays;
|
---|
[639] | 4749 |
|
---|
[1566] | 4750 | // collect initial view cells
|
---|
[1551] | 4751 | ViewCellContainer leaves;
|
---|
| 4752 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 4753 |
|
---|
[1551] | 4754 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 4755 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 4756 | {
|
---|
[1551] | 4757 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 4758 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4759 |
|
---|
[1551] | 4760 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4761 | {
|
---|
[1551] | 4762 | collectRays.push_back(*rit);
|
---|
[639] | 4763 | }
|
---|
[1551] | 4764 | }
|
---|
[801] | 4765 |
|
---|
[1570] | 4766 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 4767 |
|
---|
[1566] | 4768 | // prepare some rays for output
|
---|
[1551] | 4769 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4770 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4771 | {
|
---|
[1566] | 4772 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 4773 |
|
---|
| 4774 | if (p < raysOut)
|
---|
[1566] | 4775 | {
|
---|
[1551] | 4776 | vcRays.push_back(*rit);
|
---|
[1566] | 4777 | }
|
---|
[639] | 4778 | }
|
---|
| 4779 |
|
---|
[1551] | 4780 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4781 | }
|
---|
[639] | 4782 |
|
---|
[1416] | 4783 | ////////////////
|
---|
[1020] | 4784 | //-- export view cell geometry
|
---|
[1416] | 4785 |
|
---|
[478] | 4786 | exporter->SetWireframe();
|
---|
[442] | 4787 |
|
---|
[478] | 4788 | Material m;//= RandomMaterial();
|
---|
| 4789 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4790 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4791 |
|
---|
[1416] | 4792 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4793 | exporter->SetFilled();
|
---|
[503] | 4794 |
|
---|
[1570] | 4795 | if (exportPvs)
|
---|
[574] | 4796 | {
|
---|
[801] | 4797 | Intersectable::NewMail();
|
---|
[1570] | 4798 |
|
---|
[1742] | 4799 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 4800 |
|
---|
[1570] | 4801 | cout << endl;
|
---|
[1742] | 4802 |
|
---|
[639] | 4803 | // output PVS of view cell
|
---|
[1742] | 4804 | while (pit.HasMoreEntries())
|
---|
| 4805 | {
|
---|
| 4806 | ObjectPvsEntry entry = pit.Next();
|
---|
| 4807 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 4808 |
|
---|
[639] | 4809 | if (!intersect->Mailed())
|
---|
| 4810 | {
|
---|
[1570] | 4811 | intersect->Mail();
|
---|
[1571] | 4812 |
|
---|
[643] | 4813 | m = RandomMaterial();
|
---|
| 4814 | exporter->SetForcedMaterial(m);
|
---|
[639] | 4815 | exporter->ExportIntersectable(intersect);
|
---|
| 4816 | }
|
---|
[503] | 4817 | }
|
---|
[1570] | 4818 | cout << endl;
|
---|
[442] | 4819 | }
|
---|
[801] | 4820 |
|
---|
[478] | 4821 | DEL_PTR(exporter);
|
---|
| 4822 | cout << "finished" << endl;
|
---|
[442] | 4823 | }
|
---|
| 4824 | }
|
---|
| 4825 |
|
---|
| 4826 |
|
---|
[1021] | 4827 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4828 | {
|
---|
[1021] | 4829 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4830 |
|
---|
[1021] | 4831 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4832 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4833 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4834 | const Vector3 width = Vector3(w);
|
---|
| 4835 |
|
---|
| 4836 | PrVs testPrVs;
|
---|
| 4837 |
|
---|
| 4838 | if (exporter)
|
---|
| 4839 | {
|
---|
| 4840 | ViewCellContainer viewCells;
|
---|
| 4841 |
|
---|
| 4842 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4843 |
|
---|
[1021] | 4844 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4845 |
|
---|
[1021] | 4846 | exporter->SetWireframe();
|
---|
[482] | 4847 |
|
---|
[1021] | 4848 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4849 | exporter->ExportBox(tbox);
|
---|
| 4850 |
|
---|
| 4851 | exporter->SetFilled();
|
---|
[503] | 4852 |
|
---|
[1021] | 4853 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4854 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4855 |
|
---|
[1021] | 4856 | //exporter->ResetForcedMaterial();
|
---|
| 4857 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4858 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4859 |
|
---|
[1021] | 4860 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4861 | exporter->ExportGeometry(objects);
|
---|
[547] | 4862 |
|
---|
[1021] | 4863 | delete exporter;
|
---|
[482] | 4864 | }
|
---|
[1021] | 4865 | }
|
---|
[482] | 4866 |
|
---|
[547] | 4867 |
|
---|
[1021] | 4868 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4869 | ViewCellContainer &viewCells) const
|
---|
| 4870 | {
|
---|
| 4871 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4872 | }
|
---|
| 4873 |
|
---|
| 4874 |
|
---|
[1021] | 4875 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4876 | const Vector3 &termination,
|
---|
| 4877 | ViewCellContainer &viewcells)
|
---|
| 4878 | {
|
---|
| 4879 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4880 | }
|
---|
| 4881 |
|
---|
| 4882 |
|
---|
[979] | 4883 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4884 | {
|
---|
| 4885 | int numSamples;
|
---|
[1161] | 4886 |
|
---|
[1004] | 4887 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4888 | cout << "samples" << numSamples << endl;
|
---|
| 4889 |
|
---|
| 4890 | vector<RenderCostSample> samples;
|
---|
| 4891 |
|
---|
[1145] | 4892 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4893 | return;
|
---|
| 4894 |
|
---|
[1145] | 4895 | //start the view point queries
|
---|
[979] | 4896 | long startTime = GetTime();
|
---|
| 4897 | cout << "starting sampling of render cost ... ";
|
---|
| 4898 |
|
---|
[1145] | 4899 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4900 |
|
---|
| 4901 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4902 |
|
---|
| 4903 |
|
---|
[1161] | 4904 | // for each sample:
|
---|
| 4905 | // find view cells associated with the samples
|
---|
| 4906 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 4907 | //
|
---|
[1161] | 4908 | // for each view cell:
|
---|
| 4909 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4910 | // export geometry with color coded pvs difference
|
---|
| 4911 |
|
---|
| 4912 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4913 |
|
---|
[979] | 4914 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4915 |
|
---|
[1161] | 4916 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4917 | {
|
---|
| 4918 | RenderCostSample sample = *rit;
|
---|
| 4919 |
|
---|
| 4920 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4921 |
|
---|
[1161] | 4922 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4923 |
|
---|
| 4924 | if (it == sampleMap.end())
|
---|
| 4925 | {
|
---|
| 4926 | sampleMap[vc] = sample.mPvs;
|
---|
| 4927 | }
|
---|
| 4928 | else
|
---|
| 4929 | {
|
---|
[1740] | 4930 | (*it).second.MergeInPlace(sample.mPvs);
|
---|
[1161] | 4931 | }
|
---|
| 4932 | }
|
---|
| 4933 |
|
---|
| 4934 | // visualize the view cells
|
---|
| 4935 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4936 |
|
---|
| 4937 | Material m;//= RandomMaterial();
|
---|
| 4938 |
|
---|
| 4939 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4940 | {
|
---|
| 4941 | ViewCell *vc = (*vit).first;
|
---|
| 4942 |
|
---|
| 4943 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4944 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4945 |
|
---|
[1168] | 4946 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4947 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4948 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 4949 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 4950 |
|
---|
[1415] | 4951 | /* // counting the pvss
|
---|
| 4952 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4953 | {
|
---|
| 4954 | RenderCostSample sample = *rit;
|
---|
| 4955 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 4956 |
|
---|
[1415] | 4957 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4958 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 4959 |
|
---|
[1415] | 4960 | DEL_PTR(hMesh);
|
---|
| 4961 | }
|
---|
| 4962 | */
|
---|
[979] | 4963 | }
|
---|
| 4964 | }
|
---|
| 4965 |
|
---|
| 4966 |
|
---|
[580] | 4967 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 4968 | ViewCell *vc,
|
---|
| 4969 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4970 | const AxisAlignedPlane *clipPlane
|
---|
| 4971 | ) const
|
---|
[482] | 4972 | {
|
---|
[660] | 4973 | if (clipPlane)
|
---|
[591] | 4974 | {
|
---|
[1047] | 4975 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4976 |
|
---|
[591] | 4977 | ViewCellContainer leaves;
|
---|
| 4978 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4979 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4980 |
|
---|
| 4981 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4982 | {
|
---|
| 4983 | BspNodeGeometry geom;
|
---|
| 4984 | BspNodeGeometry front;
|
---|
| 4985 | BspNodeGeometry back;
|
---|
| 4986 |
|
---|
[1551] | 4987 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 4988 |
|
---|
[1052] | 4989 | const float eps = 0.0001f;
|
---|
[1047] | 4990 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4991 |
|
---|
[710] | 4992 | if (cf == -1)
|
---|
[682] | 4993 | {
|
---|
| 4994 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4995 | }
|
---|
[710] | 4996 | else if (cf == 0)
|
---|
[684] | 4997 | {
|
---|
[682] | 4998 | geom.SplitGeometry(front,
|
---|
| 4999 | back,
|
---|
[1047] | 5000 | plane,
|
---|
[682] | 5001 | mViewSpaceBox,
|
---|
[710] | 5002 | eps);
|
---|
[801] | 5003 |
|
---|
[683] | 5004 | if (back.Valid())
|
---|
| 5005 | {
|
---|
[682] | 5006 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 5007 | }
|
---|
[684] | 5008 | }
|
---|
[591] | 5009 | }
|
---|
| 5010 | }
|
---|
| 5011 | else
|
---|
| 5012 | {
|
---|
[801] | 5013 | // export mesh if available
|
---|
[1001] | 5014 | // TODO: some bug here?
|
---|
[1563] | 5015 | if (1 && vc->GetMesh())
|
---|
[801] | 5016 | {
|
---|
| 5017 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 5018 | }
|
---|
| 5019 | else
|
---|
[1001] | 5020 | {
|
---|
[801] | 5021 | BspNodeGeometry geom;
|
---|
| 5022 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 5023 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 5024 | }
|
---|
[591] | 5025 | }
|
---|
[482] | 5026 | }
|
---|
| 5027 |
|
---|
| 5028 |
|
---|
| 5029 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 5030 | {
|
---|
[580] | 5031 | ViewCellContainer leaves;
|
---|
| 5032 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 5033 |
|
---|
| 5034 | int maxDist = 0;
|
---|
[580] | 5035 |
|
---|
[482] | 5036 | // compute max height difference
|
---|
[580] | 5037 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 5038 | {
|
---|
[580] | 5039 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 5040 | {
|
---|
[1551] | 5041 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 5042 |
|
---|
[1001] | 5043 | if (i != j)
|
---|
| 5044 | {
|
---|
[1551] | 5045 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 5046 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 5047 |
|
---|
| 5048 | if (dist > maxDist)
|
---|
| 5049 | maxDist = dist;
|
---|
| 5050 | }
|
---|
[482] | 5051 | }
|
---|
| 5052 | }
|
---|
[580] | 5053 |
|
---|
[492] | 5054 | return maxDist;
|
---|
| 5055 | }
|
---|
[482] | 5056 |
|
---|
[492] | 5057 |
|
---|
[879] | 5058 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 5059 | {
|
---|
[1021] | 5060 | if (!ViewCellsConstructed())
|
---|
[508] | 5061 | return NULL;
|
---|
[572] | 5062 |
|
---|
| 5063 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5064 | return NULL;
|
---|
| 5065 |
|
---|
[879] | 5066 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 5067 | }
|
---|
[503] | 5068 |
|
---|
| 5069 |
|
---|
| 5070 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5071 | {
|
---|
| 5072 | BspNodeGeometry geom;
|
---|
[590] | 5073 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 5074 |
|
---|
[1001] | 5075 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 5076 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 5077 |
|
---|
[503] | 5078 | vc->SetMesh(mesh);
|
---|
| 5079 | }
|
---|
[508] | 5080 |
|
---|
| 5081 |
|
---|
[532] | 5082 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5083 | {
|
---|
[535] | 5084 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 5085 | }
|
---|
[551] | 5086 |
|
---|
| 5087 |
|
---|
[587] | 5088 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5089 | const bool createMesh)
|
---|
[551] | 5090 | {
|
---|
| 5091 | float area = 0;
|
---|
| 5092 | float volume = 0;
|
---|
| 5093 |
|
---|
[580] | 5094 | ViewCellContainer leaves;
|
---|
[582] | 5095 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 5096 |
|
---|
| 5097 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5098 |
|
---|
[693] | 5099 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 5100 | {
|
---|
| 5101 | BspNodeGeometry geom;
|
---|
[1551] | 5102 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 5103 |
|
---|
[719] | 5104 | const float lVol = geom.GetVolume();
|
---|
| 5105 | const float lArea = geom.GetArea();
|
---|
[693] | 5106 |
|
---|
| 5107 | area += lArea;
|
---|
| 5108 | volume += lVol;
|
---|
| 5109 |
|
---|
[1616] | 5110 | if (createMesh)
|
---|
| 5111 | CreateMesh(*it);
|
---|
[551] | 5112 | }
|
---|
| 5113 |
|
---|
| 5114 | viewCell->SetVolume(volume);
|
---|
| 5115 | viewCell->SetArea(area);
|
---|
[563] | 5116 | }
|
---|
[575] | 5117 |
|
---|
| 5118 |
|
---|
[693] | 5119 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 5120 | {
|
---|
| 5121 | ViewCellContainer leaves;
|
---|
| 5122 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5123 |
|
---|
| 5124 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5125 |
|
---|
| 5126 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 5127 | float subdivVol = 0;
|
---|
| 5128 | float newVol = 0;
|
---|
| 5129 |
|
---|
| 5130 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5131 | {
|
---|
| 5132 | BspNodeGeometry geom;
|
---|
[1551] | 5133 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 5134 |
|
---|
| 5135 | const float lVol = geom.GetVolume();
|
---|
| 5136 |
|
---|
| 5137 | newVol += lVol;
|
---|
| 5138 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 5139 |
|
---|
[704] | 5140 | float thres = 0.9f;
|
---|
[697] | 5141 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 5142 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 5143 | }
|
---|
| 5144 |
|
---|
| 5145 | Debug << "exact volume: " << vol << endl;
|
---|
| 5146 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 5147 | Debug << "new volume: " << newVol << endl;
|
---|
| 5148 | }
|
---|
| 5149 |
|
---|
| 5150 |
|
---|
[577] | 5151 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5152 | {
|
---|
| 5153 | // TODO: do I still need this here?
|
---|
[590] | 5154 | if (0)
|
---|
[693] | 5155 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 5156 | }
|
---|
[575] | 5157 |
|
---|
[1021] | 5158 |
|
---|
| 5159 |
|
---|
[1887] | 5160 | /************************************************************************/
|
---|
| 5161 | /* VspOspViewCellsManager implementation */
|
---|
| 5162 | /************************************************************************/
|
---|
[1021] | 5163 |
|
---|
| 5164 |
|
---|
[1789] | 5165 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
| 5166 | const string &hierarchyType)
|
---|
[1740] | 5167 | : ViewCellsManager(vcTree)
|
---|
| 5168 | {
|
---|
| 5169 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
| 5170 |
|
---|
[1887] | 5171 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
| 5172 |
|
---|
| 5173 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5174 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5175 |
|
---|
[1740] | 5176 | mHierarchyManager = CreateHierarchyManager(hierarchyType);
|
---|
| 5177 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5178 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
| 5179 | }
|
---|
| 5180 |
|
---|
| 5181 |
|
---|
[1278] | 5182 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 5183 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 5184 | {
|
---|
[1640] | 5185 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
[1887] | 5186 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
[1106] | 5187 |
|
---|
[1887] | 5188 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5189 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5190 |
|
---|
[1278] | 5191 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5192 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 5193 | }
|
---|
[859] | 5194 |
|
---|
[1789] | 5195 |
|
---|
[1743] | 5196 | Intersectable *
|
---|
| 5197 | VspOspViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
|
---|
| 5198 | {
|
---|
[1902] | 5199 | if (mUseKdPvs)
|
---|
| 5200 | {
|
---|
| 5201 | return ViewCellsManager::GetIntersectable(ray, isTermination);
|
---|
| 5202 | }
|
---|
| 5203 | else
|
---|
| 5204 | {
|
---|
| 5205 | return mHierarchyManager->GetIntersectable(ray, isTermination);
|
---|
| 5206 | }
|
---|
[1743] | 5207 | }
|
---|
[859] | 5208 |
|
---|
[1789] | 5209 |
|
---|
[1740] | 5210 | HierarchyManager *VspOspViewCellsManager::CreateHierarchyManager(const string &hierarchyType)
|
---|
| 5211 | {
|
---|
| 5212 | HierarchyManager *hierarchyManager;
|
---|
| 5213 |
|
---|
| 5214 | if (strcmp(hierarchyType.c_str(), "osp") == 0)
|
---|
| 5215 | {
|
---|
| 5216 | Debug << "hierarchy manager: osp" << endl;
|
---|
| 5217 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
| 5218 | }
|
---|
| 5219 | else if (strcmp(hierarchyType.c_str(), "bvh") == 0)
|
---|
| 5220 | {
|
---|
| 5221 | Debug << "hierarchy manager: bvh" << endl;
|
---|
| 5222 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
| 5223 | }
|
---|
| 5224 | else // only view space partition
|
---|
| 5225 | {
|
---|
| 5226 | Debug << "hierarchy manager: obj" << endl;
|
---|
| 5227 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
| 5228 | }
|
---|
| 5229 |
|
---|
| 5230 | return hierarchyManager;
|
---|
| 5231 | }
|
---|
| 5232 |
|
---|
| 5233 |
|
---|
[1021] | 5234 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 5235 | {
|
---|
[1740] | 5236 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 5237 | }
|
---|
| 5238 |
|
---|
| 5239 |
|
---|
| 5240 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 5241 | {
|
---|
| 5242 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 5243 | }
|
---|
| 5244 |
|
---|
| 5245 |
|
---|
| 5246 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 5247 | {
|
---|
| 5248 | // view cells tree constructed
|
---|
| 5249 | if (!ViewCellsTreeConstructed())
|
---|
| 5250 | {
|
---|
[1278] | 5251 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 5252 | }
|
---|
| 5253 | else
|
---|
| 5254 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 5255 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 5256 | }
|
---|
| 5257 | }
|
---|
| 5258 |
|
---|
| 5259 |
|
---|
| 5260 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 5261 | {
|
---|
[1278] | 5262 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 5263 | }
|
---|
| 5264 |
|
---|
| 5265 |
|
---|
| 5266 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 5267 | {
|
---|
| 5268 | return new VspViewCell(mesh);
|
---|
| 5269 | }
|
---|
| 5270 |
|
---|
| 5271 |
|
---|
| 5272 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 5273 | const VssRayContainer &rays)
|
---|
| 5274 | {
|
---|
| 5275 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 5276 |
|
---|
[1074] | 5277 | // skip rest if view cells were already constructed
|
---|
[1021] | 5278 | if (ViewCellsConstructed())
|
---|
| 5279 | return 0;
|
---|
| 5280 |
|
---|
| 5281 | int sampleContributions = 0;
|
---|
| 5282 | VssRayContainer sampleRays;
|
---|
| 5283 |
|
---|
| 5284 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 5285 |
|
---|
| 5286 | VssRayContainer constructionRays;
|
---|
| 5287 | VssRayContainer savedRays;
|
---|
| 5288 |
|
---|
| 5289 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 5290 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 5291 |
|
---|
| 5292 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 5293 |
|
---|
[1421] | 5294 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 5295 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 5296 |
|
---|
[1293] | 5297 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 5298 |
|
---|
[1576] | 5299 | #if TEST_EVALUATION
|
---|
| 5300 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 5301 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 5302 | {
|
---|
| 5303 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 5304 | }
|
---|
| 5305 | #endif
|
---|
| 5306 |
|
---|
[1545] | 5307 | /////////////////////////
|
---|
[1444] | 5308 | //-- print satistics for subdivision and view cells
|
---|
| 5309 |
|
---|
[1421] | 5310 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 5311 |
|
---|
[1444] | 5312 | ResetViewCells();
|
---|
| 5313 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 5314 |
|
---|
[1545] | 5315 | //////////////
|
---|
[1444] | 5316 | //-- recast rest of rays
|
---|
| 5317 |
|
---|
[1286] | 5318 | const long startTime = GetTime();
|
---|
[1021] | 5319 | cout << "Computing remaining ray contributions ... ";
|
---|
| 5320 |
|
---|
| 5321 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 5322 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 5323 |
|
---|
[1415] | 5324 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 5325 | << " secs" << endl;
|
---|
| 5326 |
|
---|
| 5327 | if (0)
|
---|
[1545] | 5328 | { // real meshes are constructed at this stage
|
---|
[1021] | 5329 | cout << "finalizing view cells ... ";
|
---|
| 5330 | FinalizeViewCells(true);
|
---|
| 5331 | cout << "finished" << endl;
|
---|
| 5332 | }
|
---|
| 5333 |
|
---|
| 5334 | return sampleContributions;
|
---|
| 5335 | }
|
---|
| 5336 |
|
---|
| 5337 |
|
---|
| 5338 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 5339 | const VssRayContainer &rays)
|
---|
| 5340 | {
|
---|
| 5341 | if (!ViewCellsConstructed())
|
---|
| 5342 | {
|
---|
[1842] | 5343 | Debug << "post process error: no view cells constructed" << endl;
|
---|
[1021] | 5344 | return 0;
|
---|
| 5345 | }
|
---|
| 5346 |
|
---|
[1418] | 5347 | // if view cells were already constructed before post processing step
|
---|
| 5348 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 5349 | if (mViewCellsFinished)
|
---|
| 5350 | {
|
---|
| 5351 | FinalizeViewCells(true);
|
---|
| 5352 | EvaluateViewCellsStats();
|
---|
| 5353 |
|
---|
| 5354 | return 0;
|
---|
| 5355 | }
|
---|
| 5356 |
|
---|
| 5357 | // check if new view cells turned invalid
|
---|
| 5358 | int minPvs, maxPvs;
|
---|
| 5359 |
|
---|
| 5360 | if (0)
|
---|
| 5361 | {
|
---|
| 5362 | minPvs = mMinPvsSize;
|
---|
| 5363 | maxPvs = mMaxPvsSize;
|
---|
| 5364 | }
|
---|
| 5365 | else
|
---|
| 5366 | {
|
---|
[1414] | 5367 | // problem matt: why did I start here from zero?
|
---|
| 5368 | minPvs = 0;
|
---|
[1021] | 5369 | maxPvs = mMaxPvsSize;
|
---|
| 5370 | }
|
---|
| 5371 |
|
---|
| 5372 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5373 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5374 |
|
---|
| 5375 | SetValidity(minPvs, maxPvs);
|
---|
| 5376 |
|
---|
| 5377 |
|
---|
[1414] | 5378 | // area is not up to date, has to be recomputed
|
---|
[1021] | 5379 | mTotalAreaValid = false;
|
---|
| 5380 | VssRayContainer postProcessRays;
|
---|
| 5381 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 5382 |
|
---|
| 5383 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 5384 |
|
---|
| 5385 |
|
---|
| 5386 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 5387 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 5388 | mViewCellsTree->SetRoot(root);
|
---|
| 5389 |
|
---|
[1696] | 5390 | //////////////////////////
|
---|
| 5391 | //-- update pvs up to the root of the hierarchy
|
---|
[1418] | 5392 |
|
---|
[1021] | 5393 | ObjectPvs pvs;
|
---|
| 5394 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5395 |
|
---|
[1414] | 5396 |
|
---|
[1418] | 5397 | //////////////////////
|
---|
[1021] | 5398 | //-- render simulation after merge + refine
|
---|
[1414] | 5399 |
|
---|
[1415] | 5400 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 5401 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5402 | SimulationStatistics ss;
|
---|
| 5403 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 5404 | cout << ss << endl;
|
---|
[1414] | 5405 |
|
---|
[1486] | 5406 |
|
---|
[1843] | 5407 | mHierarchyManager->CreateUniqueObjectIds();
|
---|
| 5408 |
|
---|
[1586] | 5409 | ///////////
|
---|
[1021] | 5410 | //-- compression
|
---|
[1262] | 5411 |
|
---|
[1843] | 5412 | if (0) CompressViewCells();
|
---|
[859] | 5413 |
|
---|
[1486] | 5414 | /////////////
|
---|
| 5415 | //-- some tasks still to do on the view cells:
|
---|
| 5416 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1696] | 5417 |
|
---|
[1021] | 5418 | if (1) FinalizeViewCells(true);
|
---|
| 5419 |
|
---|
| 5420 | return 0;
|
---|
[859] | 5421 | }
|
---|
| 5422 |
|
---|
[1021] | 5423 |
|
---|
| 5424 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5425 | {
|
---|
[1021] | 5426 | return VSP_OSP;
|
---|
| 5427 | }
|
---|
[859] | 5428 |
|
---|
[1021] | 5429 |
|
---|
| 5430 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5431 | {
|
---|
| 5432 | // terminate recursion
|
---|
| 5433 | if (root->IsLeaf())
|
---|
| 5434 | {
|
---|
| 5435 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5436 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5437 | return leaf->GetViewCell();
|
---|
| 5438 | }
|
---|
| 5439 |
|
---|
| 5440 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5441 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5442 |
|
---|
| 5443 | // evaluate merge cost for priority traversal
|
---|
[1713] | 5444 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1021] | 5445 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5446 |
|
---|
| 5447 | float volume = 0;
|
---|
| 5448 |
|
---|
| 5449 | VspNode *front = interior->GetFront();
|
---|
| 5450 | VspNode *back = interior->GetBack();
|
---|
| 5451 |
|
---|
| 5452 | ObjectPvs frontPvs, backPvs;
|
---|
| 5453 |
|
---|
[1545] | 5454 | /////////
|
---|
[1021] | 5455 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5456 |
|
---|
[1021] | 5457 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5458 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5459 |
|
---|
| 5460 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5461 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5462 |
|
---|
| 5463 | volume += backVc->GetVolume();
|
---|
| 5464 | volume += frontVc->GetVolume();
|
---|
| 5465 |
|
---|
| 5466 | viewCellInterior->SetVolume(volume);
|
---|
| 5467 |
|
---|
| 5468 | return viewCellInterior;
|
---|
| 5469 | }
|
---|
| 5470 |
|
---|
| 5471 |
|
---|
| 5472 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5473 | {
|
---|
| 5474 | if (!ViewCellsConstructed())
|
---|
| 5475 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5476 |
|
---|
| 5477 | // TODO: set reasonable limit
|
---|
| 5478 | const int limit = 20;
|
---|
| 5479 |
|
---|
| 5480 | for (int i = 0; i < limit; ++ i)
|
---|
| 5481 | {
|
---|
| 5482 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5483 |
|
---|
[1278] | 5484 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5485 | {
|
---|
| 5486 | return true;
|
---|
| 5487 | }
|
---|
[904] | 5488 | }
|
---|
[859] | 5489 |
|
---|
[1021] | 5490 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5491 | return false;
|
---|
[884] | 5492 | }
|
---|
| 5493 |
|
---|
| 5494 |
|
---|
[1027] | 5495 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5496 | ViewCell *vc,
|
---|
[1416] | 5497 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5498 | const AxisAlignedPlane *clipPlane
|
---|
| 5499 | ) const
|
---|
[1027] | 5500 | {
|
---|
| 5501 | ViewCellContainer leaves;
|
---|
| 5502 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5503 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5504 |
|
---|
[1047] | 5505 | Plane3 plane;
|
---|
| 5506 | if (clipPlane)
|
---|
[1418] | 5507 | {
|
---|
| 5508 | // arbitrary plane definition
|
---|
[1047] | 5509 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5510 | }
|
---|
[1047] | 5511 |
|
---|
[1027] | 5512 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5513 | {
|
---|
| 5514 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5515 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5516 |
|
---|
[1416] | 5517 | const AxisAlignedBox3 box =
|
---|
[1551] | 5518 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5519 |
|
---|
[1418] | 5520 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5521 | continue;
|
---|
| 5522 |
|
---|
[1047] | 5523 | if (clipPlane)
|
---|
| 5524 | {
|
---|
| 5525 | if (box.Side(plane) == -1)
|
---|
[1144] | 5526 | {
|
---|
[1047] | 5527 | exporter->ExportBox(box);
|
---|
[1144] | 5528 | }
|
---|
[1047] | 5529 | else if (box.Side(plane) == 0)
|
---|
| 5530 | {
|
---|
[1418] | 5531 | // intersection
|
---|
[1047] | 5532 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5533 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5534 | exporter->ExportBox(bbox);
|
---|
| 5535 | }
|
---|
| 5536 | }
|
---|
| 5537 | else
|
---|
| 5538 | {
|
---|
[1027] | 5539 | exporter->ExportBox(box);
|
---|
[1047] | 5540 | }
|
---|
[1027] | 5541 | }
|
---|
| 5542 | }
|
---|
| 5543 |
|
---|
| 5544 |
|
---|
[1021] | 5545 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5546 | {
|
---|
| 5547 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5548 | // validy update in preprocessor for all managers)
|
---|
| 5549 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5550 |
|
---|
[1021] | 5551 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5552 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5553 | }
|
---|
| 5554 |
|
---|
| 5555 |
|
---|
| 5556 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5557 | const VssRayContainer &sampleRays)
|
---|
[859] | 5558 | {
|
---|
[997] | 5559 | if (!ViewCellsConstructed())
|
---|
| 5560 | return;
|
---|
[1027] | 5561 |
|
---|
[1021] | 5562 | VssRayContainer visRays;
|
---|
| 5563 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5564 |
|
---|
[1633] | 5565 | ////////////
|
---|
| 5566 | //-- export final view cells
|
---|
[1106] | 5567 |
|
---|
[1633] | 5568 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5569 |
|
---|
[1830] | 5570 | Vector3 scale(0.9f, 0.9f, 0.9f);
|
---|
| 5571 | //Vector3 scale(1.0f, 1.0f, 1.0f);
|
---|
[1789] | 5572 |
|
---|
[1633] | 5573 | if (exporter)
|
---|
| 5574 | {
|
---|
[1764] | 5575 | if (CLAMP_TO_BOX)
|
---|
| 5576 | {
|
---|
| 5577 | exporter->mClampToBox = true;
|
---|
| 5578 | }
|
---|
| 5579 |
|
---|
[1763] | 5580 | EvaluateViewCellsStats();
|
---|
| 5581 |
|
---|
[1633] | 5582 | const long starttime = GetTime();
|
---|
| 5583 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[1420] | 5584 |
|
---|
[1633] | 5585 | // matt: hack for clamping scene
|
---|
| 5586 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
[1763] | 5587 | bbox.Scale(scale);
|
---|
[1703] | 5588 |
|
---|
[1633] | 5589 | if (1 && mExportRays)
|
---|
| 5590 | {
|
---|
| 5591 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5592 | }
|
---|
| 5593 |
|
---|
[1760] | 5594 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects,
|
---|
| 5595 | CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
[1763] | 5596 |
|
---|
[1764] | 5597 | // hack color code (show pvs size)
|
---|
| 5598 | const int savedColorCode = mColorCode;
|
---|
| 5599 | mColorCode = 1; // export pvs
|
---|
| 5600 |
|
---|
[1763] | 5601 | //ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, mColorCode, GetClipPlane());
|
---|
| 5602 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1633] | 5603 |
|
---|
| 5604 | delete exporter;
|
---|
[1760] | 5605 |
|
---|
[1633] | 5606 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5607 | mColorCode = savedColorCode;
|
---|
| 5608 | }
|
---|
| 5609 |
|
---|
[1633] | 5610 | // export final object partition
|
---|
| 5611 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5612 |
|
---|
| 5613 | if (exporter)
|
---|
[1287] | 5614 | {
|
---|
[1764] | 5615 | if (CLAMP_TO_BOX)
|
---|
| 5616 | {
|
---|
| 5617 | exporter->mClampToBox = true;
|
---|
| 5618 | }
|
---|
| 5619 |
|
---|
[1633] | 5620 | const long starttime = GetTime();
|
---|
[1287] | 5621 |
|
---|
[1633] | 5622 | // matt: hack for making visualization smaller in size
|
---|
| 5623 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
[1763] | 5624 | bbox.Scale(scale);
|
---|
[1415] | 5625 |
|
---|
[1633] | 5626 | cout << "exporting object space hierarchy ... ";
|
---|
| 5627 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5628 |
|
---|
| 5629 | delete exporter;
|
---|
| 5630 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5631 | }
|
---|
[1121] | 5632 |
|
---|
[1760] | 5633 | // visualization of the view cells
|
---|
[1763] | 5634 | if (0)
|
---|
[1760] | 5635 | {
|
---|
| 5636 | ExportMergedViewCells(objects);
|
---|
| 5637 | }
|
---|
| 5638 |
|
---|
[1841] | 5639 | // export some view cells
|
---|
[1021] | 5640 | int leafOut;
|
---|
| 5641 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1769] | 5642 |
|
---|
| 5643 | const bool sortViewCells = false;
|
---|
| 5644 | const bool exportPvs = true;
|
---|
| 5645 | const bool exportRays = true;
|
---|
[1570] | 5646 | const int raysOut = 100;
|
---|
[580] | 5647 |
|
---|
[1769] | 5648 | ExportSingleViewCells(objects,
|
---|
| 5649 | leafOut,
|
---|
| 5650 | sortViewCells,
|
---|
| 5651 | exportPvs,
|
---|
| 5652 | exportRays,
|
---|
| 5653 | raysOut,
|
---|
| 5654 | "");
|
---|
[1570] | 5655 | }
|
---|
[1021] | 5656 |
|
---|
| 5657 |
|
---|
[1570] | 5658 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5659 | const int maxViewCells,
|
---|
| 5660 | const bool sortViewCells,
|
---|
| 5661 | const bool exportPvs,
|
---|
| 5662 | const bool exportRays,
|
---|
| 5663 | const int maxRays,
|
---|
| 5664 | const string prefix,
|
---|
| 5665 | VssRayContainer *visRays)
|
---|
| 5666 | {
|
---|
| 5667 | if (sortViewCells)
|
---|
[697] | 5668 | {
|
---|
[1415] | 5669 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1789] | 5670 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1021] | 5671 | }
|
---|
| 5672 |
|
---|
[1570] | 5673 | ViewCell::NewMail();
|
---|
| 5674 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 5675 |
|
---|
[1570] | 5676 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 5677 |
|
---|
[1021] | 5678 | for (int i = 0; i < limit; ++ i)
|
---|
| 5679 | {
|
---|
| 5680 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5681 |
|
---|
| 5682 | // largest view cell pvs first of random view cell
|
---|
[1570] | 5683 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 5684 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5685 |
|
---|
[1887] | 5686 | if (vc->Mailed()) // view cell already processed
|
---|
[1570] | 5687 | continue;
|
---|
| 5688 |
|
---|
| 5689 | vc->Mail();
|
---|
| 5690 |
|
---|
[1021] | 5691 | ObjectPvs pvs;
|
---|
| 5692 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5693 |
|
---|
[1570] | 5694 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 5695 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5696 |
|
---|
[1709] | 5697 | cout << "view cell " << vc->GetId() << ": pvs cost=" << mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[1021] | 5698 |
|
---|
[1570] | 5699 | if (exportPvs)
|
---|
| 5700 | {
|
---|
| 5701 | Material m;
|
---|
[1418] | 5702 |
|
---|
[1570] | 5703 | Intersectable::NewMail();
|
---|
| 5704 |
|
---|
[1742] | 5705 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 5706 |
|
---|
[1570] | 5707 | // output PVS of view cell
|
---|
[1742] | 5708 | while (pit.HasMoreEntries())
|
---|
[1570] | 5709 | {
|
---|
[1742] | 5710 | ObjectPvsEntry entry = pit.Next();
|
---|
| 5711 |
|
---|
| 5712 | Intersectable *intersect = entry.mObject;
|
---|
| 5713 |
|
---|
[1570] | 5714 | if (!intersect->Mailed())
|
---|
| 5715 | {
|
---|
| 5716 | m = RandomMaterial();
|
---|
| 5717 | exporter->SetForcedMaterial(m);
|
---|
| 5718 |
|
---|
| 5719 | exporter->ExportIntersectable(intersect);
|
---|
| 5720 | intersect->Mail();
|
---|
| 5721 | }
|
---|
| 5722 | }
|
---|
| 5723 | }
|
---|
| 5724 |
|
---|
| 5725 | if (exportRays)
|
---|
[1021] | 5726 | {
|
---|
[1570] | 5727 | ////////////
|
---|
| 5728 | //-- export the sample rays
|
---|
| 5729 |
|
---|
[1021] | 5730 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 5731 | VssRayContainer vcRays;
|
---|
| 5732 | VssRayContainer collectRays;
|
---|
[1021] | 5733 |
|
---|
[1570] | 5734 | // collect intial view cells
|
---|
| 5735 | ViewCellContainer leaves;
|
---|
| 5736 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 5737 |
|
---|
[1570] | 5738 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 5739 |
|
---|
[1570] | 5740 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5741 | {
|
---|
| 5742 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5743 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5744 |
|
---|
| 5745 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 5746 | {
|
---|
[1570] | 5747 | collectRays.push_back(*rit);
|
---|
[1021] | 5748 | }
|
---|
[1570] | 5749 | }
|
---|
[1021] | 5750 |
|
---|
[1570] | 5751 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 5752 |
|
---|
[1570] | 5753 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 5754 |
|
---|
[1570] | 5755 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5756 | {
|
---|
| 5757 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5758 |
|
---|
| 5759 | if (p < raysOut)
|
---|
| 5760 | vcRays.push_back(*rit);
|
---|
[1021] | 5761 | }
|
---|
[1570] | 5762 |
|
---|
| 5763 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 5764 | }
|
---|
[1570] | 5765 |
|
---|
| 5766 |
|
---|
[1415] | 5767 | /////////////////
|
---|
[1021] | 5768 | //-- export view cell geometry
|
---|
[1121] | 5769 |
|
---|
[697] | 5770 | exporter->SetWireframe();
|
---|
| 5771 |
|
---|
[1416] | 5772 | Material m;
|
---|
[1021] | 5773 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5774 | exporter->SetForcedMaterial(m);
|
---|
| 5775 |
|
---|
[1416] | 5776 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5777 | exporter->SetFilled();
|
---|
| 5778 |
|
---|
[1021] | 5779 | DEL_PTR(exporter);
|
---|
| 5780 | cout << "finished" << endl;
|
---|
[697] | 5781 | }
|
---|
[1021] | 5782 |
|
---|
[1570] | 5783 | cout << endl;
|
---|
[697] | 5784 | }
|
---|
| 5785 |
|
---|
| 5786 |
|
---|
[1021] | 5787 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5788 | ViewCellContainer &viewCells) const
|
---|
| 5789 | {
|
---|
[1278] | 5790 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5791 | }
|
---|
[580] | 5792 |
|
---|
[1021] | 5793 |
|
---|
| 5794 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5795 | const Vector3 &termination,
|
---|
| 5796 | ViewCellContainer &viewcells)
|
---|
| 5797 | {
|
---|
[1278] | 5798 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5799 | }
|
---|
| 5800 |
|
---|
| 5801 |
|
---|
| 5802 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5803 | const bool exportPvs,
|
---|
| 5804 | const ObjectContainer &objects)
|
---|
| 5805 | {
|
---|
| 5806 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5807 | return false;
|
---|
| 5808 |
|
---|
[1415] | 5809 | const long starttime = GetTime();
|
---|
[1021] | 5810 | cout << "exporting view cells to xml ... ";
|
---|
| 5811 |
|
---|
[1201] | 5812 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5813 |
|
---|
| 5814 | // for output we need unique ids for each view cell
|
---|
| 5815 | CreateUniqueViewCellIds();
|
---|
| 5816 |
|
---|
| 5817 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5818 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5819 |
|
---|
[1843] | 5820 | // §§ tmp matt: for storage cost
|
---|
| 5821 | if (0 && exportPvs)
|
---|
[1580] | 5822 | {
|
---|
| 5823 | ///////////////
|
---|
| 5824 | //-- export bounding boxes
|
---|
| 5825 | //-- The bounding boxes are used to identify
|
---|
| 5826 | //-- the objects in the rendering engine
|
---|
[1614] | 5827 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 5828 | }
|
---|
[1021] | 5829 |
|
---|
[1415] | 5830 | //////////////////////////
|
---|
[1021] | 5831 | //-- export the view cells and the pvs
|
---|
| 5832 |
|
---|
| 5833 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5834 |
|
---|
| 5835 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5836 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5837 | stream << "</ViewCells>" << endl;
|
---|
| 5838 |
|
---|
[1415] | 5839 | //////////////////////
|
---|
[1201] | 5840 | //-- export the view space hierarchy
|
---|
[1021] | 5841 |
|
---|
[1262] | 5842 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5843 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5844 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5845 |
|
---|
[1278] | 5846 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5847 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5848 |
|
---|
[1415] | 5849 | //////////////////////
|
---|
[1201] | 5850 | //-- export the object space partition
|
---|
| 5851 |
|
---|
[1278] | 5852 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5853 |
|
---|
[1201] | 5854 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5855 | stream.close();
|
---|
[1201] | 5856 |
|
---|
[1415] | 5857 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5858 | return true;
|
---|
| 5859 | }
|
---|
| 5860 |
|
---|
| 5861 |
|
---|
| 5862 |
|
---|
[1027] | 5863 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5864 | const bool active) const
|
---|
[1021] | 5865 | {
|
---|
| 5866 | if (!ViewCellsConstructed())
|
---|
| 5867 | return NULL;
|
---|
[1588] | 5868 |
|
---|
[1021] | 5869 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5870 | return NULL;
|
---|
[1588] | 5871 |
|
---|
[1278] | 5872 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5873 | }
|
---|
| 5874 |
|
---|
| 5875 |
|
---|
| 5876 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5877 | {
|
---|
| 5878 | // matt: TODO
|
---|
| 5879 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5880 |
|
---|
| 5881 | ViewCellContainer leaves;
|
---|
| 5882 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5883 |
|
---|
| 5884 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5885 |
|
---|
| 5886 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5887 | {
|
---|
[1551] | 5888 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 5889 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5890 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5891 | }
|
---|
| 5892 |
|
---|
[1021] | 5893 | vc->SetMesh(mesh);
|
---|
| 5894 | }
|
---|
| 5895 |
|
---|
| 5896 |
|
---|
| 5897 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5898 | {
|
---|
| 5899 | // matt: TODO
|
---|
| 5900 | return 0;
|
---|
| 5901 | }
|
---|
| 5902 |
|
---|
| 5903 |
|
---|
[1667] | 5904 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
[1021] | 5905 | {
|
---|
| 5906 | float area = 0;
|
---|
| 5907 | float volume = 0;
|
---|
| 5908 |
|
---|
| 5909 | ViewCellContainer leaves;
|
---|
| 5910 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5911 |
|
---|
| 5912 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5913 |
|
---|
| 5914 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5915 | {
|
---|
[1551] | 5916 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 5917 |
|
---|
[1278] | 5918 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 5919 |
|
---|
[1027] | 5920 | const float lVol = box.GetVolume();
|
---|
| 5921 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5922 |
|
---|
| 5923 | area += lArea;
|
---|
| 5924 | volume += lVol;
|
---|
| 5925 |
|
---|
| 5926 | CreateMesh(*it);
|
---|
[580] | 5927 | }
|
---|
| 5928 |
|
---|
[1021] | 5929 | viewCell->SetVolume(volume);
|
---|
| 5930 | viewCell->SetArea(area);
|
---|
[580] | 5931 | }
|
---|
| 5932 |
|
---|
[1876] | 5933 |
|
---|
[1021] | 5934 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5935 | {
|
---|
| 5936 | // TODO
|
---|
| 5937 | }
|
---|
[580] | 5938 |
|
---|
[1201] | 5939 |
|
---|
[1889] | 5940 | static void PrintCompressionStats(HierarchyManager *hm, const int pvsEntries)
|
---|
| 5941 | {
|
---|
| 5942 | float mem = (float)pvsEntries * ObjectPvs::GetEntrySize();
|
---|
| 5943 |
|
---|
| 5944 | float fullmem = mem +
|
---|
| 5945 | (hm->GetVspTree()->GetStatistics().Leaves() * 16 +
|
---|
| 5946 | hm->mBvHierarchy->GetStatistics().Leaves() * 16) / float(1024 * 1024);
|
---|
| 5947 |
|
---|
| 5948 | cout << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
| 5949 | Debug << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
| 5950 | }
|
---|
| 5951 |
|
---|
| 5952 |
|
---|
[1845] | 5953 | void VspOspViewCellsManager::CompressViewCells()
|
---|
| 5954 | {
|
---|
[1889] | 5955 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
[1887] | 5956 | return;
|
---|
| 5957 |
|
---|
[1845] | 5958 | ////////////
|
---|
| 5959 | //-- compression
|
---|
| 5960 |
|
---|
[1889] | 5961 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 5962 |
|
---|
| 5963 | cout << "before compression: " << endl;
|
---|
| 5964 | Debug << "before compression: " << endl;
|
---|
| 5965 |
|
---|
| 5966 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
| 5967 |
|
---|
| 5968 | if (mCompressObjects)
|
---|
[1845] | 5969 | {
|
---|
[1889] | 5970 | cout << "compressing in the objects: " << endl;
|
---|
| 5971 | Debug << "compressing in the objects: " << endl;
|
---|
[1845] | 5972 |
|
---|
| 5973 | pvsEntries = mHierarchyManager->CompressObjectSpace();
|
---|
[1889] | 5974 | }
|
---|
| 5975 | else
|
---|
| 5976 | {
|
---|
| 5977 | cout << "compressing in the view space: " << endl;
|
---|
| 5978 | Debug << "compressing in the view space: " << endl;
|
---|
[1846] | 5979 |
|
---|
[1889] | 5980 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
| 5981 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1845] | 5982 | }
|
---|
[1889] | 5983 |
|
---|
| 5984 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
[1845] | 5985 | }
|
---|
| 5986 |
|
---|
| 5987 |
|
---|
[1201] | 5988 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5989 | ObjectContainer *objects,
|
---|
| 5990 | const bool finalizeViewCells,
|
---|
| 5991 | BoundingBoxConverter *bconverter)
|
---|
| 5992 |
|
---|
| 5993 | {
|
---|
| 5994 | ViewCellsManager *vm =
|
---|
| 5995 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 5996 | #if 0
|
---|
| 5997 | // insert scene objects in tree
|
---|
[1201] | 5998 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 5999 | #endif
|
---|
[1201] | 6000 | return vm;
|
---|
| 6001 | }
|
---|
| 6002 |
|
---|
[1889] | 6003 |
|
---|
[1737] | 6004 | void
|
---|
| 6005 | VspOspViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
|
---|
| 6006 | {
|
---|
| 6007 | mHierarchyManager->CollectObjects(box, objects);
|
---|
| 6008 | }
|
---|
[1692] | 6009 |
|
---|
[1737] | 6010 |
|
---|
[1709] | 6011 | #if 1
|
---|
[1180] | 6012 |
|
---|
[1686] | 6013 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 6014 | {
|
---|
| 6015 | int samplesPerPass;
|
---|
| 6016 | int numSamples;
|
---|
| 6017 | int castSamples = 0;
|
---|
[1718] | 6018 | int oldSamples = 0;
|
---|
| 6019 | int samplesForStats;
|
---|
| 6020 | char statsPrefix[100];
|
---|
| 6021 | char suffix[100];
|
---|
[1713] | 6022 | int splitsStepSize;
|
---|
[1686] | 6023 |
|
---|
| 6024 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1718] | 6025 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1686] | 6026 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 6027 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[1718] | 6028 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.stepSize", splitsStepSize);
|
---|
| 6029 |
|
---|
| 6030 | Debug << "step size: " << splitsStepSize << endl;
|
---|
[1686] | 6031 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 6032 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 6033 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 6034 |
|
---|
[1773] | 6035 | cout << "reseting pvs ... ";
|
---|
[1686] | 6036 |
|
---|
| 6037 | // reset pvs and start over from zero
|
---|
[1718] | 6038 | mViewCellsTree->ResetPvs();
|
---|
| 6039 |
|
---|
[1686] | 6040 | cout << "finished" << endl;
|
---|
| 6041 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 6042 |
|
---|
[1811] | 6043 | vector<int> evalStrats;
|
---|
| 6044 |
|
---|
| 6045 | // mix of sampling strategies
|
---|
[1916] | 6046 | mStrategies.push_back(SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION);
|
---|
[1910] | 6047 |
|
---|
[1916] | 6048 | //evalStrats.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 6049 | //evalStrats.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
|
---|
| 6050 | //evalStrats.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 6051 |
|
---|
[1910] | 6052 | //evalStrats.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 6053 |
|
---|
[1826] | 6054 | Debug << "casting eval strategies: ";
|
---|
| 6055 | for (int i = 0; i < (int)evalStrats.size(); ++ i)
|
---|
| 6056 | Debug << evalStrats[i] << " ";
|
---|
| 6057 | Debug << endl;
|
---|
[1811] | 6058 |
|
---|
[1843] | 6059 | cout << "casting eval strategies: ";
|
---|
| 6060 | for (int i = 0; i < (int)evalStrats.size(); ++ i)
|
---|
| 6061 | cout << evalStrats[i] << " ";
|
---|
| 6062 | cout << endl;
|
---|
| 6063 |
|
---|
[1686] | 6064 | while (castSamples < numSamples)
|
---|
| 6065 | {
|
---|
| 6066 | ///////////////
|
---|
| 6067 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 6068 |
|
---|
[1718] | 6069 | VssRayContainer evaluationSamples;
|
---|
[1686] | 6070 | const int samplingType = mEvaluationSamplingType;
|
---|
| 6071 |
|
---|
| 6072 | long startTime = GetTime();
|
---|
| 6073 |
|
---|
| 6074 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 6075 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
[1778] | 6076 |
|
---|
[1903] | 6077 | if (1)
|
---|
| 6078 | {
|
---|
| 6079 | CastPassSamples(samplesPerPass, evalStrats, evaluationSamples);
|
---|
| 6080 | }
|
---|
| 6081 | else
|
---|
| 6082 | {
|
---|
| 6083 | // use mixed distributions
|
---|
| 6084 | CastPassSamples2(samplesPerPass, evaluationSamples);
|
---|
| 6085 | }
|
---|
| 6086 |
|
---|
[1686] | 6087 | castSamples += samplesPerPass;
|
---|
| 6088 |
|
---|
| 6089 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1718] | 6090 |
|
---|
| 6091 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6092 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1718] | 6093 |
|
---|
| 6094 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6095 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 6096 |
|
---|
| 6097 | startTime = GetTime();
|
---|
| 6098 |
|
---|
| 6099 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 6100 |
|
---|
| 6101 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6102 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6103 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6104 |
|
---|
[1758] | 6105 | if ((castSamples >= samplesForStats + oldSamples) ||
|
---|
| 6106 | (castSamples >= numSamples))
|
---|
[1718] | 6107 | {
|
---|
| 6108 | oldSamples += samplesForStats;
|
---|
[1686] | 6109 |
|
---|
[1718] | 6110 | ///////////
|
---|
| 6111 | //-- output stats
|
---|
[1686] | 6112 |
|
---|
[1718] | 6113 | sprintf(suffix, "-%09d-eval.log", castSamples);
|
---|
| 6114 | const string filename = string(statsPrefix) + string(suffix);
|
---|
[1710] | 6115 |
|
---|
[1718] | 6116 | startTime = GetTime();
|
---|
[1732] | 6117 |
|
---|
[1718] | 6118 | cout << "compute new statistics ... " << endl;
|
---|
[1710] | 6119 |
|
---|
[1718] | 6120 | ofstream ofstr(filename.c_str());
|
---|
[1745] | 6121 | mHierarchyManager->EvaluateSubdivision2(ofstr, splitsStepSize, false);
|
---|
[1718] | 6122 |
|
---|
| 6123 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6124 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1732] | 6125 | cout << "*************************************" << endl;
|
---|
| 6126 |
|
---|
[1718] | 6127 | Debug << "statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6128 |
|
---|
[1750] | 6129 | #if 0
|
---|
[1787] | 6130 | //////////////
|
---|
[1745] | 6131 | // filtered stats
|
---|
[1790] | 6132 |
|
---|
[1745] | 6133 | sprintf(suffix, "-%09d-eval-filter.log", castSamples);
|
---|
| 6134 | const string filename2 = string(statsPrefix) + string(suffix);
|
---|
| 6135 |
|
---|
| 6136 | startTime = GetTime();
|
---|
| 6137 |
|
---|
| 6138 | cout << "compute new statistics for filtered pvs ... " << endl;
|
---|
| 6139 |
|
---|
| 6140 | ofstream ofstr2(filename2.c_str());
|
---|
| 6141 | mHierarchyManager->EvaluateSubdivision2(ofstr2, splitsStepSize, true);
|
---|
| 6142 |
|
---|
| 6143 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6144 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6145 | cout << "*************************************" << endl;
|
---|
[1787] | 6146 | Debug << "filtered statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1745] | 6147 | #endif
|
---|
| 6148 |
|
---|
[1718] | 6149 | // only for debugging purpose
|
---|
[1732] | 6150 | if (0)
|
---|
[1718] | 6151 | {
|
---|
| 6152 | ViewCellContainer viewCells;
|
---|
| 6153 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), viewCells);
|
---|
| 6154 |
|
---|
| 6155 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
| 6156 | int pvsSize = 0;
|
---|
| 6157 |
|
---|
| 6158 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 6159 | {
|
---|
| 6160 | pvsSize += (*vit)->GetPvs().GetSize();
|
---|
| 6161 | }
|
---|
| 6162 |
|
---|
[1787] | 6163 | cout << "debug entries: " << pvsSize << ", memcost: "
|
---|
| 6164 | << (float)pvsSize * ObjectPvs::GetEntrySize() << endl;
|
---|
[1718] | 6165 | }
|
---|
| 6166 | }
|
---|
| 6167 |
|
---|
[1709] | 6168 | disposeRays(evaluationSamples, NULL);
|
---|
[1686] | 6169 | }
|
---|
[1718] | 6170 |
|
---|
[1686] | 6171 | }
|
---|
[1551] | 6172 | #endif
|
---|
[1786] | 6173 |
|
---|
| 6174 |
|
---|
| 6175 |
|
---|
| 6176 | }
|
---|