[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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[1825] | 149 | if (1)
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[1773] | 150 | {
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| 151 | mStrategies.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
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[1830] | 152 | //mStrategies.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
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| 153 | mStrategies.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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[1773] | 154 | mStrategies.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
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| 155 | }
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[1826] | 156 |
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[1903] | 157 |
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[1826] | 158 | Debug << "casting strategies: ";
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| 159 | for (int i = 0; i < (int)mStrategies.size(); ++ i)
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| 160 | Debug << mStrategies[i] << " ";
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| 161 | Debug << endl;
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| 162 |
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[1903] | 163 | // now decode distribution string
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| 164 | char buff[1024];
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| 165 | Environment::GetSingleton()->GetStringValue("RssPreprocessor.distributions", buff);
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| 166 |
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| 167 | mMixtureDistribution = new MixtureDistribution(*mPreprocessor);
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| 168 | mMixtureDistribution->Construct(buff);
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| 169 |
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| 170 |
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[1020] | 171 | // sampling type for view cells construction samples
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[1695] | 172 | if (strcmp(buf, "object") == 0)
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[722] | 173 | {
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[1695] | 174 | mSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 175 | }
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| 176 | else if (strcmp(buf, "box") == 0)
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| 177 | {
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[1520] | 178 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 179 | }
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[664] | 180 | else if (strcmp(buf, "directional") == 0)
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[722] | 181 | {
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[1520] | 182 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 183 | }
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[1020] | 184 | else if (strcmp(buf, "object_directional") == 0)
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| 185 | {
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[1520] | 186 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 187 | }
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[1695] | 188 | else if (strcmp(buf, "reverse_object") == 0)
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| 189 | {
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| 190 | mSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 191 | }
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[1022] | 192 | /*else if (strcmp(buf, "interior") == 0)
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| 193 | {
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| 194 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 195 | }*/
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[1020] | 196 | else
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| 197 | {
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[666] | 198 | Debug << "error! wrong sampling type" << endl;
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| 199 | exit(0);
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| 200 | }
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[660] | 201 |
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[1020] | 202 | // sampling type for evaluation samples
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[1004] | 203 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 204 |
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[1695] | 205 | if (strcmp(buf, "object") == 0)
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[722] | 206 | {
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[1695] | 207 | mEvaluationSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 208 | }
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| 209 | else if (strcmp(buf, "box") == 0)
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| 210 | {
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[1520] | 211 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 212 | }
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| 213 | else if (strcmp(buf, "directional") == 0)
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| 214 | {
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[1520] | 215 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 216 | }
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[1020] | 217 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 218 | {
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[1520] | 219 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 220 | }
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[1695] | 221 | else if (strcmp(buf, "reverse_object") == 0)
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| 222 | {
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| 223 | mEvaluationSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 224 | }
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[1022] | 225 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 226 | {
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[1520] | 227 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 228 | }*/
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[1020] | 229 | else
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| 230 | {
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[1695] | 231 | mEvaluationSamplingType = -1;
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[722] | 232 | Debug << "error! wrong sampling type" << endl;
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| 233 | exit(0);
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| 234 | }
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[503] | 235 |
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[1004] | 236 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 237 |
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[734] | 238 | if (strcmp(buf, "perobject") == 0)
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[728] | 239 | {
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[1703] | 240 | sRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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[728] | 241 | }
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[1703] | 242 | else if (strcmp(buf, "pertriangle") == 0)
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[728] | 243 | {
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[1703] | 244 | sRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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[728] | 245 | }
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| 246 | else
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| 247 | {
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| 248 | Debug << "error! wrong sampling type" << endl;
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| 249 | exit(0);
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| 250 | }
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| 251 |
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[1004] | 252 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 253 |
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[482] | 254 | if (strcmp(buf, "PVS") == 0)
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| 255 | mColorCode = 1;
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| 256 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 257 | mColorCode = 2;
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| 258 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 259 | mColorCode = 3;
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| 260 | else
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| 261 | mColorCode = 0;
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| 262 |
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[664] | 263 |
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[1418] | 264 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 265 | Debug << "color code: " << mColorCode << endl;
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| 266 |
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| 267 | Debug << "export rays: " << mExportRays << endl;
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| 268 | Debug << "export geometry: " << mExportGeometry << endl;
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| 269 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 270 |
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| 271 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 272 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 273 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 274 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 275 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 276 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 277 | Debug << "export to file: " << mExportViewCells << endl;
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| 278 |
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[801] | 279 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 280 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 281 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 282 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 283 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 284 | Debug << "sampling type: " << mSamplingType << endl;
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[1703] | 285 | Debug << "render cost evaluation type: " << sRenderCostEvaluationType << endl;
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[728] | 286 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 287 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 288 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 289 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 290 |
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| 291 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 292 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[1902] | 293 | Debug << "use kd pvs " << mUseKdPvs << endl;
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[664] | 294 | Debug << endl;
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[440] | 295 | }
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| 296 |
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[485] | 297 |
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[440] | 298 | ViewCellsManager::~ViewCellsManager()
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| 299 | {
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[1020] | 300 | // HACK: if view cells tree does not
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[1264] | 301 | // handle view cells, we have to do it here
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[1020] | 302 | // question: rather create view cells resource manager?
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[598] | 303 | if (!ViewCellsTreeConstructed())
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[1141] | 304 | {
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[598] | 305 | CLEAR_CONTAINER(mViewCells);
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[1141] | 306 | }
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[1696] | 307 | else
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| 308 | {
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| 309 | DEL_PTR(mViewCellsTree);
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| 310 | }
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[1903] | 311 |
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| 312 | DEL_PTR(mMixtureDistribution);
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[440] | 313 | }
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| 314 |
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[1903] | 315 |
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[1743] | 316 | Intersectable *
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| 317 | ViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
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| 318 | {
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[1902] | 319 | if (mUseKdPvs)
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| 320 | {
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| 321 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
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| 322 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(isTermination ?
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| 323 | ray.mTermination : ray.mOrigin,
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| 324 | area);
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| 325 | return GetPreprocessor()->mKdTree->GetOrCreateKdIntersectable(node);
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| 326 | }
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| 327 | else
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| 328 | {
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| 329 | return isTermination ? ray.mTerminationObject : ray.mOriginObject;
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| 330 | }
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[1743] | 331 | }
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[1221] | 332 |
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[1902] | 333 |
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[1737] | 334 | void
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| 335 | ViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
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| 336 | {
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| 337 | GetPreprocessor()->mKdTree->CollectObjects(box, objects);
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| 338 | }
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[1613] | 339 |
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[1221] | 340 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 341 | {
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| 342 | Mesh *m = vc->GetMesh();
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| 343 |
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[1563] | 344 | if (m)
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| 345 | {
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| 346 | m->ComputeBoundingBox();
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| 347 | return m->mBox;
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[859] | 348 | }
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[485] | 349 |
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[859] | 350 | AxisAlignedBox3 box;
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| 351 | box.Initialize();
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| 352 |
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| 353 | if (!vc->IsLeaf()) {
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| 354 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 355 |
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| 356 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 357 | for (; it != vci->mChildren.end(); ++it) {
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| 358 | box.Include(GetViewCellBox(*it));
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| 359 | }
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| 360 | }
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| 361 |
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| 362 | return box;
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| 363 | }
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| 364 |
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[693] | 365 |
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[574] | 366 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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[1768] | 367 | const vector<int> &strategies,
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| 368 | VssRayContainer &passSamples
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| 369 | ) const
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[527] | 370 | {
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[1633] | 371 | long startTime = GetTime();
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[564] | 372 |
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[1784] | 373 | SimpleRayContainer simpleRays;
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| 374 |
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| 375 | simpleRays.reserve(samplesPerPass);
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| 376 | passSamples.reserve(samplesPerPass * 2); // always creates double rays
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| 377 |
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[1701] | 378 | // create one third of each type
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[1765] | 379 | int castRays = 0;
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[1701] | 380 |
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[1765] | 381 | const int numRaysPerPass = samplesPerPass / (int)strategies.size();
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| 382 | vector<int>::const_iterator iit, iit_end = strategies.end();
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| 383 |
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| 384 | for (iit = strategies.begin(); iit != iit_end; ++ iit)
|
---|
| 385 | {
|
---|
[1772] | 386 | const int stype = *iit;
|
---|
[1765] | 387 | const int newRays =
|
---|
| 388 | mPreprocessor->GenerateRays(numRaysPerPass, stype, simpleRays);
|
---|
[1772] | 389 |
|
---|
[1765] | 390 | cout << "cast " << newRays << " rays of strategy " << stype << endl;
|
---|
| 391 | castRays += newRays;
|
---|
[1709] | 392 | }
|
---|
[1701] | 393 |
|
---|
[1784] | 394 | cout << "generated " << samplesPerPass << " samples in "
|
---|
| 395 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1221] | 396 |
|
---|
[1633] | 397 | startTime = GetTime();
|
---|
[1784] | 398 |
|
---|
[573] | 399 | // shoot simple ray and add it to importance samples
|
---|
[1520] | 400 | mPreprocessor->CastRays(simpleRays, passSamples, true);
|
---|
[1784] | 401 | cout << "cast " << samplesPerPass << " samples in "
|
---|
| 402 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[570] | 403 |
|
---|
[574] | 404 | return (int)passSamples.size();
|
---|
| 405 | }
|
---|
[570] | 406 |
|
---|
[574] | 407 |
|
---|
| 408 | /// helper function which destroys rays or copies them into the output ray container
|
---|
[639] | 409 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
[574] | 410 | {
|
---|
| 411 | cout << "disposing samples ... ";
|
---|
[582] | 412 | long startTime = GetTime();
|
---|
| 413 | int n = (int)rays.size();
|
---|
| 414 |
|
---|
[573] | 415 | if (outRays)
|
---|
[542] | 416 | {
|
---|
[574] | 417 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 418 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 419 | {
|
---|
| 420 | outRays->push_back(*it);
|
---|
| 421 | }
|
---|
[573] | 422 | }
|
---|
| 423 | else
|
---|
| 424 | {
|
---|
[639] | 425 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 426 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 427 | {
|
---|
| 428 | if (!(*it)->IsActive())
|
---|
| 429 | delete (*it);
|
---|
| 430 | }
|
---|
[573] | 431 | }
|
---|
[639] | 432 |
|
---|
[574] | 433 | cout << "finished" << endl;
|
---|
[582] | 434 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[573] | 435 | }
|
---|
[570] | 436 |
|
---|
| 437 |
|
---|
[573] | 438 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 439 | {
|
---|
| 440 | int numSamples = 0;
|
---|
[1077] | 441 |
|
---|
[573] | 442 | SimpleRayContainer simpleRays;
|
---|
[574] | 443 | VssRayContainer initialSamples;
|
---|
[540] | 444 |
|
---|
[1381] | 445 | // store pointer to preprocessor for further use during construction
|
---|
| 446 | mPreprocessor = preprocessor;
|
---|
| 447 |
|
---|
[1563] | 448 |
|
---|
[1381] | 449 | ///////////////////////////////////////////////////////
|
---|
| 450 | //-- Initial sampling for the construction of the view cell hierarchy.
|
---|
| 451 | //-- We use uniform sampling / box based sampling.
|
---|
| 452 |
|
---|
[752] | 453 | long startTime = GetTime();
|
---|
[1633] | 454 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
|
---|
[1414] | 455 |
|
---|
[1381] | 456 | // cast initial samples
|
---|
[1778] | 457 |
|
---|
| 458 | // mix of sampling strategies
|
---|
| 459 | vector<int>dummy;
|
---|
| 460 | //dummy.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 461 | //dummy.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 462 | //dummy.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 463 |
|
---|
[1773] | 464 | CastPassSamples(mInitialSamples, mStrategies, initialSamples);
|
---|
[1278] | 465 |
|
---|
[1221] | 466 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 467 |
|
---|
[573] | 468 | // construct view cells
|
---|
[752] | 469 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 470 |
|
---|
[727] | 471 | // initial samples count for overall samples ...
|
---|
[752] | 472 | numSamples += mInitialSamples;
|
---|
[542] | 473 |
|
---|
[574] | 474 | // rays can be passed or deleted
|
---|
[639] | 475 | disposeRays(initialSamples, outRays);
|
---|
[752] | 476 |
|
---|
| 477 | cout << "time needed for initial construction: "
|
---|
| 478 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 479 |
|
---|
| 480 | Debug << "time needed for initial construction: "
|
---|
| 481 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 482 |
|
---|
[1444] | 483 | // collect view cells and compute statistics
|
---|
| 484 | ResetViewCells();
|
---|
[752] | 485 |
|
---|
[1444] | 486 |
|
---|
| 487 | ///////////////////
|
---|
| 488 | //-- Initial hierarchy construction finished.
|
---|
[1381] | 489 | //-- We can do some stats and visualization
|
---|
| 490 |
|
---|
[1444] | 491 | if (0)
|
---|
[660] | 492 | {
|
---|
[1444] | 493 | //-- export initial view cell partition
|
---|
[1563] | 494 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
[1416] | 495 |
|
---|
[1414] | 496 | const string filename("viewcells.wrl");
|
---|
| 497 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
[712] | 498 |
|
---|
[660] | 499 | if (exporter)
|
---|
| 500 | {
|
---|
[1414] | 501 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
| 502 |
|
---|
[660] | 503 | if (mExportGeometry)
|
---|
[712] | 504 | {
|
---|
[660] | 505 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 506 | }
|
---|
[660] | 507 |
|
---|
[750] | 508 | exporter->SetWireframe();
|
---|
[1760] | 509 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[660] | 510 |
|
---|
| 511 | delete exporter;
|
---|
[712] | 512 | cout << "finished" << endl;
|
---|
[660] | 513 | }
|
---|
| 514 | }
|
---|
| 515 |
|
---|
[1381] | 516 |
|
---|
[1419] | 517 | //////////////////////
|
---|
[1381] | 518 | //-- Cast some more sampling after initial construction.
|
---|
| 519 | //-- The additional rays can be used to gain
|
---|
| 520 | //-- some more information before the bottom-up merge
|
---|
| 521 | //-- note: guided rays could be used for this task
|
---|
| 522 |
|
---|
[1414] | 523 | // time spent after construction of the initial partition
|
---|
[1381] | 524 | startTime = GetTime();
|
---|
[574] | 525 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[573] | 526 |
|
---|
| 527 | while (numSamples < n)
|
---|
| 528 | {
|
---|
[596] | 529 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 530 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 531 |
|
---|
[574] | 532 | VssRayContainer constructionSamples;
|
---|
| 533 |
|
---|
[727] | 534 | // cast new samples
|
---|
[574] | 535 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[1773] | 536 | mStrategies,
|
---|
[574] | 537 | constructionSamples);
|
---|
| 538 |
|
---|
| 539 | cout << "finished" << endl;
|
---|
| 540 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 541 |
|
---|
[727] | 542 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 543 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 544 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 545 |
|
---|
[574] | 546 | cout << "finished" << endl;
|
---|
| 547 |
|
---|
[639] | 548 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 549 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 550 | }
|
---|
[752] | 551 |
|
---|
[1563] | 552 | if (0)
|
---|
| 553 | {
|
---|
| 554 | ///////////////
|
---|
| 555 | //-- Get stats after the additional sampling step
|
---|
| 556 | //-- and before the bottom-up merge step
|
---|
[570] | 557 |
|
---|
[1563] | 558 | EvaluateViewCellsStats();
|
---|
| 559 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 560 | << mCurrentViewCellsStats << endl;
|
---|
| 561 |
|
---|
| 562 | mRenderer->RenderScene();
|
---|
| 563 | SimulationStatistics ss;
|
---|
| 564 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 565 |
|
---|
[1563] | 566 | Debug << ss << endl;
|
---|
| 567 | }
|
---|
[660] | 568 |
|
---|
[1416] | 569 | ////////////////////
|
---|
[1381] | 570 | //-- post processing of the initial construction
|
---|
| 571 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 572 | //-- We can additionally cast some post processing sample rays.
|
---|
| 573 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 574 |
|
---|
| 575 | VssRayContainer postProcessSamples;
|
---|
| 576 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 577 |
|
---|
[1773] | 578 | CastPassSamples(mPostProcessSamples, mStrategies, postProcessSamples);
|
---|
[1381] | 579 |
|
---|
| 580 | cout << "finished" << endl;
|
---|
[574] | 581 | cout << "starting post processing and visualization" << endl;
|
---|
| 582 |
|
---|
[1444] | 583 | // store view cells with rays for post processing?
|
---|
[574] | 584 | const bool storeViewCells = true;
|
---|
[605] | 585 |
|
---|
| 586 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 587 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 588 |
|
---|
[1381] | 589 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 590 |
|
---|
[1414] | 591 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 592 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 593 |
|
---|
[1414] | 594 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 595 | disposeRays(postProcessSamples, outRays);
|
---|
| 596 |
|
---|
[1749] | 597 |
|
---|
[1416] | 598 | ////////////////
|
---|
[1381] | 599 | //-- Evaluation of the resulting view cell partition.
|
---|
| 600 | //-- We cast a number of new samples and measure the render cost
|
---|
| 601 |
|
---|
[801] | 602 | if (mEvaluateViewCells)
|
---|
| 603 | {
|
---|
[1145] | 604 | EvalViewCellPartition();
|
---|
[801] | 605 | }
|
---|
[1749] | 606 |
|
---|
[1416] | 607 | /////////////////
|
---|
[1769] | 608 | //-- Show some visualizations
|
---|
[1381] | 609 |
|
---|
[666] | 610 | if (mShowVisualization)
|
---|
| 611 | {
|
---|
[1769] | 612 | if (0)
|
---|
| 613 | {
|
---|
[1773] | 614 | mStrategies.clear();
|
---|
| 615 | mStrategies.push_back(SamplingStrategy::VIEWCELL_BORDER_BASED_DISTRIBUTION);
|
---|
[1769] | 616 | }
|
---|
| 617 |
|
---|
[1633] | 618 | ///////////////
|
---|
[1381] | 619 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[1633] | 620 |
|
---|
| 621 | VssRayContainer visSamples;
|
---|
| 622 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
[1773] | 623 | mStrategies,
|
---|
[1633] | 624 | visSamples);
|
---|
[574] | 625 |
|
---|
[666] | 626 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[1633] | 627 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
[574] | 628 |
|
---|
[1444] | 629 | // various visualizations
|
---|
[1633] | 630 | Visualize(preprocessor->mObjects, visSamples);
|
---|
[574] | 631 |
|
---|
[1633] | 632 | disposeRays(visSamples, outRays);
|
---|
[666] | 633 | }
|
---|
[574] | 634 |
|
---|
[1444] | 635 | // recalculate view cells
|
---|
| 636 | EvaluateViewCellsStats();
|
---|
| 637 |
|
---|
[1843] | 638 | if (1) CompressViewCells();
|
---|
| 639 |
|
---|
| 640 | // write view cells to disc
|
---|
| 641 | if (mExportViewCells)
|
---|
| 642 | {
|
---|
| 643 | char filename[100];
|
---|
| 644 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 645 | ExportViewCells(filename, mExportPvs, mPreprocessor->mObjects);
|
---|
| 646 | }
|
---|
| 647 |
|
---|
[573] | 648 | return numSamples;
|
---|
[527] | 649 | }
|
---|
| 650 |
|
---|
[547] | 651 |
|
---|
[1418] | 652 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 653 | {
|
---|
| 654 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 655 | }
|
---|
| 656 |
|
---|
| 657 |
|
---|
[752] | 658 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 659 | const int nViewCells)
|
---|
[728] | 660 | {
|
---|
| 661 | std::ofstream outstream;
|
---|
| 662 | outstream.open(filename.c_str());
|
---|
| 663 |
|
---|
| 664 | ViewCellContainer viewCells;
|
---|
[1771] | 665 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 666 | #if 1
|
---|
[735] | 667 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[1771] | 668 | #else
|
---|
| 669 | viewCells = mViewCells;
|
---|
| 670 | #endif
|
---|
[728] | 671 |
|
---|
| 672 | float maxRenderCost, minRenderCost;
|
---|
[734] | 673 |
|
---|
| 674 | // sort by render cost
|
---|
| 675 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 676 |
|
---|
| 677 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 678 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 679 |
|
---|
[991] | 680 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 681 |
|
---|
[997] | 682 | int histoIntervals;
|
---|
[1004] | 683 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 684 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 685 |
|
---|
[997] | 686 | int histoMaxVal;
|
---|
[1004] | 687 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 688 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 689 |
|
---|
[997] | 690 |
|
---|
[728] | 691 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 692 | const float stepSize = range / (float)intervals;
|
---|
[728] | 693 |
|
---|
[735] | 694 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 695 |
|
---|
| 696 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 697 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 698 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 699 |
|
---|
[736] | 700 | int j = 0;
|
---|
[735] | 701 | int i = 0;
|
---|
| 702 |
|
---|
[734] | 703 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 704 |
|
---|
[744] | 705 | // count for integral
|
---|
| 706 | float volSum = 0;
|
---|
| 707 | int smallerCostSum = 0;
|
---|
[735] | 708 |
|
---|
[734] | 709 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 710 | while (1)
|
---|
| 711 | {
|
---|
[744] | 712 | // count for histogram value
|
---|
| 713 | float volDif = 0;
|
---|
| 714 | int smallerCostDif = 0;
|
---|
[736] | 715 |
|
---|
[734] | 716 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 717 | {
|
---|
[744] | 718 | volSum += viewCells[i]->GetVolume();
|
---|
| 719 | volDif += viewCells[i]->GetVolume();
|
---|
| 720 |
|
---|
[734] | 721 | ++ i;
|
---|
[744] | 722 | ++ smallerCostSum;
|
---|
| 723 | ++ smallerCostDif;
|
---|
[734] | 724 | }
|
---|
[736] | 725 |
|
---|
[744] | 726 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 727 | break;
|
---|
[736] | 728 |
|
---|
[744] | 729 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 730 | const float volRatioSum = volSum / totalVol;
|
---|
| 731 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 732 |
|
---|
[991] | 733 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 734 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 735 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 736 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 737 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 738 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 739 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 740 |
|
---|
| 741 | // increase current render cost
|
---|
[734] | 742 | currentRenderCost += stepSize;
|
---|
| 743 | }
|
---|
[735] | 744 |
|
---|
[734] | 745 | outstream.close();
|
---|
| 746 | }
|
---|
| 747 |
|
---|
[735] | 748 |
|
---|
[979] | 749 |
|
---|
| 750 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 751 | ObjectContainer *objects,
|
---|
[1676] | 752 | bool finalizeViewCells,
|
---|
[979] | 753 | BoundingBoxConverter *bconverter)
|
---|
| 754 |
|
---|
| 755 | {
|
---|
| 756 | ViewCellsParser parser;
|
---|
| 757 | ViewCellsManager *vm = NULL;
|
---|
| 758 |
|
---|
[1616] | 759 | const long startTime = GetTime();
|
---|
| 760 | bool success = parser.ParseViewCellsFile(filename, &vm, objects, bconverter);
|
---|
| 761 |
|
---|
[1715] | 762 | cout<<"viewcells parsed "<<endl<<flush;
|
---|
| 763 |
|
---|
[1616] | 764 | if (success)
|
---|
[979] | 765 | {
|
---|
[1621] | 766 | //vm->ResetViewCells();
|
---|
[1679] | 767 | //hack
|
---|
| 768 | vm->mViewCells.clear();
|
---|
| 769 | ViewCellContainer leaves;
|
---|
| 770 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
[979] | 771 |
|
---|
[1679] | 772 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[1621] | 773 |
|
---|
[1679] | 774 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 775 | {
|
---|
| 776 | vm->mViewCells.push_back(*it);
|
---|
| 777 | }
|
---|
[979] | 778 | vm->mViewCellsFinished = true;
|
---|
| 779 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 780 |
|
---|
| 781 | if (finalizeViewCells)
|
---|
| 782 | {
|
---|
[1444] | 783 | // create the meshes and compute volumes
|
---|
[979] | 784 | vm->FinalizeViewCells(true);
|
---|
[1616] | 785 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 786 | }
|
---|
| 787 |
|
---|
| 788 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 789 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 790 | }
|
---|
| 791 | else
|
---|
| 792 | {
|
---|
| 793 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 794 | DEL_PTR(vm);
|
---|
| 795 | }
|
---|
| 796 |
|
---|
| 797 | return vm;
|
---|
| 798 | }
|
---|
| 799 |
|
---|
| 800 |
|
---|
| 801 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 802 | const bool exportPvs,
|
---|
| 803 | const ObjectContainer &objects)
|
---|
| 804 | {
|
---|
[1002] | 805 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 806 | {
|
---|
[997] | 807 | return false;
|
---|
[1545] | 808 | }
|
---|
[997] | 809 |
|
---|
[979] | 810 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 811 |
|
---|
[1201] | 812 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 813 |
|
---|
| 814 | // for output we need unique ids for each view cell
|
---|
| 815 | CreateUniqueViewCellIds();
|
---|
| 816 |
|
---|
| 817 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 818 | stream << "<VisibilitySolution>" << endl;
|
---|
| 819 |
|
---|
[1262] | 820 | if (exportPvs)
|
---|
| 821 | {
|
---|
| 822 | //-- export bounding boxes
|
---|
| 823 | stream << "<BoundingBoxes>" << endl;
|
---|
[979] | 824 |
|
---|
[1902] | 825 | if (mUseKdPvs)
|
---|
[1614] | 826 | {
|
---|
[1902] | 827 | vector<KdIntersectable *>::iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
| 828 |
|
---|
| 829 | int id = 0;
|
---|
| 830 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 831 | {
|
---|
| 832 | Intersectable *obj = *kit;
|
---|
| 833 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
[1761] | 834 |
|
---|
[1902] | 835 | obj->SetId(id);
|
---|
| 836 |
|
---|
| 837 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 838 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 839 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 840 | }
|
---|
[1614] | 841 | }
|
---|
[1902] | 842 | else
|
---|
| 843 | {
|
---|
| 844 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[1761] | 845 |
|
---|
[1902] | 846 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 847 | {
|
---|
| 848 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 849 |
|
---|
[1902] | 850 | ////////////
|
---|
| 851 | //-- the bounding boxes
|
---|
| 852 |
|
---|
| 853 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
| 854 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 855 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 856 | }
|
---|
[1262] | 857 | }
|
---|
[1902] | 858 |
|
---|
[1262] | 859 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 860 | }
|
---|
[979] | 861 |
|
---|
[1264] | 862 |
|
---|
[1551] | 863 | /////////////
|
---|
[979] | 864 | //-- export the view cells and the pvs
|
---|
| 865 |
|
---|
| 866 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 867 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 868 |
|
---|
[979] | 869 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 870 |
|
---|
| 871 | stream << "</ViewCells>" << endl;
|
---|
| 872 |
|
---|
| 873 |
|
---|
[1551] | 874 | //////////
|
---|
[1262] | 875 | //-- export the view space hierarchy
|
---|
[979] | 876 |
|
---|
[1262] | 877 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 878 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 879 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 880 |
|
---|
[979] | 881 | mVspBspTree->Export(stream);
|
---|
[1286] | 882 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 883 |
|
---|
| 884 | stream << "</VisibilitySolution>" << endl;
|
---|
| 885 |
|
---|
| 886 | stream.close();
|
---|
| 887 | cout << "finished" << endl;
|
---|
| 888 |
|
---|
| 889 | return true;
|
---|
| 890 | }
|
---|
| 891 |
|
---|
| 892 |
|
---|
[735] | 893 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 894 | const int nViewCells)
|
---|
[734] | 895 | {
|
---|
| 896 | std::ofstream outstream;
|
---|
| 897 | outstream.open(filename.c_str());
|
---|
| 898 |
|
---|
| 899 | ViewCellContainer viewCells;
|
---|
[1771] | 900 |
|
---|
| 901 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 902 | #if 0
|
---|
[735] | 903 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[1771] | 904 | #else
|
---|
| 905 | viewCells = mViewCells;
|
---|
| 906 | #endif
|
---|
[1824] | 907 | ViewCellContainer::iterator it = viewCells.begin(),
|
---|
| 908 | it_end = viewCells.end();
|
---|
[1771] | 909 | for (; it != it_end; ++it) {
|
---|
| 910 | //(*it)->UpdatePvsCost();
|
---|
[1772] | 911 | (*it)->SetPvsCost((float)(*it)->GetFilteredPvsSize());
|
---|
[1771] | 912 | }
|
---|
[734] | 913 |
|
---|
[1709] | 914 | float maxPvs, maxVal, minVal;
|
---|
[1771] | 915 |
|
---|
[997] | 916 | // sort by pvs size
|
---|
[735] | 917 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 918 |
|
---|
[1771] | 919 | maxPvs = viewCells.back()->GetPvsCost();
|
---|
[997] | 920 | minVal = 0;
|
---|
| 921 |
|
---|
[991] | 922 | // hack: normalize pvs size
|
---|
[997] | 923 | int histoMaxVal;
|
---|
[1824] | 924 | Environment::GetSingleton()->GetIntValue(
|
---|
| 925 | "Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1709] | 926 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
[997] | 927 |
|
---|
[1121] | 928 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 929 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 930 |
|
---|
[997] | 931 | int histoIntervals;
|
---|
[1004] | 932 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 933 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 934 |
|
---|
[1709] | 935 | const float range = maxVal - minVal;
|
---|
| 936 | int stepSize = (int)(range / intervals);
|
---|
[735] | 937 |
|
---|
[997] | 938 | // set step size to avoid endless loop
|
---|
[735] | 939 | if (!stepSize) stepSize = 1;
|
---|
[979] | 940 |
|
---|
| 941 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 942 |
|
---|
[735] | 943 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 944 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 945 |
|
---|
[1709] | 946 | float currentPvs = minVal;
|
---|
[997] | 947 |
|
---|
[735] | 948 | int i = 0;
|
---|
| 949 | int j = 0;
|
---|
[744] | 950 | float volSum = 0;
|
---|
| 951 | int smallerSum = 0;
|
---|
| 952 |
|
---|
[1771] | 953 | it = viewCells.begin();
|
---|
[735] | 954 |
|
---|
[997] | 955 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 956 | {
|
---|
[744] | 957 | float volDif = 0;
|
---|
| 958 | int smallerDif = 0;
|
---|
[736] | 959 |
|
---|
[997] | 960 | while ((i < (int)viewCells.size()) &&
|
---|
[1771] | 961 | (viewCells[i]->GetPvsCost() < currentPvs))
|
---|
[735] | 962 | {
|
---|
[744] | 963 | volDif += viewCells[i]->GetVolume();
|
---|
| 964 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 965 |
|
---|
[735] | 966 | ++ i;
|
---|
[744] | 967 | ++ smallerDif;
|
---|
| 968 | ++ smallerSum;
|
---|
[735] | 969 | }
|
---|
[736] | 970 |
|
---|
[1771] | 971 | // if (0 && (i < (int)viewCells.size()))
|
---|
| 972 | // Debug << "new pvs cost increase: " << mViewCellsTree->GetPvsCost(viewCells[i])
|
---|
| 973 | // << " " << currentPvs << endl;
|
---|
| 974 |
|
---|
[744] | 975 | const float volRatioDif = volDif / totalVol;
|
---|
| 976 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 977 |
|
---|
[997] | 978 | outstream << "#Pass\n" << j << endl;
|
---|
| 979 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 980 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 981 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 982 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 983 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 984 |
|
---|
| 985 | //-- increase current pvs size to define next interval
|
---|
| 986 | currentPvs += stepSize;
|
---|
[728] | 987 | }
|
---|
[991] | 988 |
|
---|
[735] | 989 | outstream.close();
|
---|
[1771] | 990 |
|
---|
[728] | 991 | }
|
---|
| 992 |
|
---|
[735] | 993 |
|
---|
[1002] | 994 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 995 | {
|
---|
| 996 | return mExportPvs;
|
---|
| 997 | }
|
---|
| 998 |
|
---|
| 999 |
|
---|
[1580] | 1000 | void ViewCellsManager::ResetPvs()
|
---|
| 1001 | {
|
---|
| 1002 | if (ViewCellsTreeConstructed())
|
---|
| 1003 | {
|
---|
| 1004 | mViewCellsTree->ResetPvs();
|
---|
| 1005 | }
|
---|
| 1006 | else
|
---|
| 1007 | {
|
---|
| 1008 | cout << "view cells tree not constructed" << endl;
|
---|
| 1009 | }
|
---|
| 1010 | }
|
---|
| 1011 |
|
---|
| 1012 |
|
---|
[1679] | 1013 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
| 1014 | {
|
---|
| 1015 | mViewCellsTree->ExportStats(fileName);
|
---|
| 1016 | }
|
---|
| 1017 |
|
---|
| 1018 |
|
---|
[1145] | 1019 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 1020 | {
|
---|
| 1021 | int samplesPerPass;
|
---|
| 1022 | int numSamples;
|
---|
| 1023 | int castSamples = 0;
|
---|
[1570] | 1024 | char str[64];
|
---|
[1695] | 1025 | int oldSamples = 0;
|
---|
[660] | 1026 |
|
---|
[1695] | 1027 | int samplesForStats;
|
---|
| 1028 |
|
---|
[1004] | 1029 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1695] | 1030 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1004] | 1031 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 1032 |
|
---|
[664] | 1033 | char statsPrefix[100];
|
---|
[1004] | 1034 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 1035 |
|
---|
[664] | 1036 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 1037 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 1038 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 1039 |
|
---|
[801] | 1040 | cout << "reseting pvs ... ";
|
---|
| 1041 |
|
---|
[1145] | 1042 | const bool startFromZero = true;
|
---|
[801] | 1043 |
|
---|
[666] | 1044 | // reset pvs and start over from zero
|
---|
| 1045 | if (startFromZero)
|
---|
| 1046 | {
|
---|
| 1047 | mViewCellsTree->ResetPvs();
|
---|
| 1048 | }
|
---|
[1145] | 1049 | else // start from current sampless
|
---|
[666] | 1050 | {
|
---|
[1145] | 1051 | // statistics before casting more samples
|
---|
[666] | 1052 | cout << "compute new statistics ... ";
|
---|
[1570] | 1053 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1054 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 1055 |
|
---|
| 1056 | mViewCellsTree->ExportStats(fName);
|
---|
| 1057 | cout << "finished" << endl;
|
---|
| 1058 | }
|
---|
[1570] | 1059 |
|
---|
[744] | 1060 | cout << "finished" << endl;
|
---|
[1178] | 1061 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 1062 |
|
---|
[660] | 1063 | while (castSamples < numSamples)
|
---|
[1686] | 1064 | {
|
---|
| 1065 | ///////////////
|
---|
| 1066 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 1067 |
|
---|
[664] | 1068 | VssRayContainer evaluationSamples;
|
---|
[1686] | 1069 | const int samplingType = mEvaluationSamplingType;
|
---|
[663] | 1070 |
|
---|
[1004] | 1071 | long startTime = GetTime();
|
---|
| 1072 |
|
---|
| 1073 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1074 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1075 |
|
---|
[1773] | 1076 | CastPassSamples(samplesPerPass, mStrategies, evaluationSamples);
|
---|
[664] | 1077 |
|
---|
| 1078 | castSamples += samplesPerPass;
|
---|
| 1079 |
|
---|
[1004] | 1080 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1695] | 1081 |
|
---|
| 1082 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1083 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1695] | 1084 |
|
---|
| 1085 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1086 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 1087 |
|
---|
| 1088 | startTime = GetTime();
|
---|
| 1089 |
|
---|
[664] | 1090 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 1091 |
|
---|
[1004] | 1092 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1093 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1094 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 1095 |
|
---|
[1695] | 1096 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
| 1097 | {
|
---|
| 1098 | oldSamples += samplesForStats;
|
---|
[1686] | 1099 |
|
---|
[1695] | 1100 | ///////////
|
---|
| 1101 | //-- output stats
|
---|
[1686] | 1102 |
|
---|
[1695] | 1103 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1104 | string fileName = string(statsPrefix) + string(str);
|
---|
[1686] | 1105 |
|
---|
[1695] | 1106 | ///////////////
|
---|
| 1107 | //-- propagate pvs or pvs size information
|
---|
[1586] | 1108 |
|
---|
[1695] | 1109 | startTime = GetTime();
|
---|
| 1110 | ObjectPvs pvs;
|
---|
[664] | 1111 |
|
---|
[1709] | 1112 | cout << "updating pvs for evaluation ... " << endl;
|
---|
[664] | 1113 |
|
---|
[1695] | 1114 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 1115 |
|
---|
| 1116 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1117 | cout << "finished updating the pvs in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1118 | Debug << "pvs evaluated in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1119 |
|
---|
| 1120 | startTime = GetTime();
|
---|
| 1121 | cout << "compute new statistics ... " << endl;
|
---|
| 1122 |
|
---|
| 1123 | ExportStats(fileName);
|
---|
| 1124 |
|
---|
| 1125 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1126 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1127 | Debug << "statistis computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1128 | }
|
---|
| 1129 |
|
---|
[664] | 1130 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 1131 | }
|
---|
[728] | 1132 |
|
---|
[997] | 1133 |
|
---|
[1570] | 1134 | ////////////
|
---|
[997] | 1135 | //-- histogram
|
---|
| 1136 |
|
---|
[1695] | 1137 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[735] | 1138 | bool useHisto;
|
---|
[997] | 1139 | int histoStepSize;
|
---|
[693] | 1140 |
|
---|
[1004] | 1141 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 1142 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 1143 |
|
---|
[735] | 1144 | if (useHisto)
|
---|
[734] | 1145 | {
|
---|
[735] | 1146 | // evaluate view cells in a histogram
|
---|
| 1147 | char s[64];
|
---|
| 1148 |
|
---|
[997] | 1149 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1150 | {
|
---|
[997] | 1151 | string filename;
|
---|
[744] | 1152 |
|
---|
[997] | 1153 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1154 | #if 0
|
---|
[744] | 1155 | //-- evaluate histogram for render cost
|
---|
| 1156 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1157 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1158 |
|
---|
| 1159 | EvalViewCellHistogram(filename, pass);
|
---|
| 1160 |
|
---|
[997] | 1161 | #endif
|
---|
[744] | 1162 | //////////////////////////////////////////
|
---|
[752] | 1163 | //-- evaluate histogram for pvs size
|
---|
[744] | 1164 |
|
---|
| 1165 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1166 |
|
---|
| 1167 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1168 | filename = string(statsPrefix) + string(s);
|
---|
| 1169 |
|
---|
| 1170 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1171 | }
|
---|
[734] | 1172 | }
|
---|
[660] | 1173 | }
|
---|
| 1174 |
|
---|
[704] | 1175 |
|
---|
| 1176 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1177 | {
|
---|
[704] | 1178 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1179 | }
|
---|
[660] | 1180 |
|
---|
[703] | 1181 |
|
---|
[1145] | 1182 | /// Returns index of the best view cells of the neighborhood
|
---|
[1707] | 1183 | static int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
[704] | 1184 | {
|
---|
[705] | 1185 | int bestViewCellIdx = 0;
|
---|
[703] | 1186 |
|
---|
[704] | 1187 | float mergeCost = Limits::Infinity;
|
---|
| 1188 | int i = 0;
|
---|
[703] | 1189 |
|
---|
[734] | 1190 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1191 |
|
---|
[734] | 1192 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1193 | {
|
---|
[734] | 1194 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1195 |
|
---|
| 1196 | if (mc < mergeCost)
|
---|
[704] | 1197 | {
|
---|
| 1198 | mergeCost = mc;
|
---|
| 1199 | bestViewCellIdx = i;
|
---|
[703] | 1200 | }
|
---|
[704] | 1201 | }
|
---|
[703] | 1202 |
|
---|
[704] | 1203 | return bestViewCellIdx;
|
---|
| 1204 | }
|
---|
[703] | 1205 |
|
---|
| 1206 |
|
---|
[728] | 1207 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1208 | {
|
---|
| 1209 | mMaxFilterSize = size;
|
---|
| 1210 | }
|
---|
| 1211 |
|
---|
| 1212 |
|
---|
[1703] | 1213 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) //const
|
---|
[728] | 1214 | {
|
---|
[1703] | 1215 | switch (sRenderCostEvaluationType)
|
---|
[728] | 1216 | {
|
---|
| 1217 | case PER_OBJECT:
|
---|
[752] | 1218 | return 1.0f;
|
---|
[728] | 1219 |
|
---|
| 1220 | case PER_TRIANGLE:
|
---|
[1703] | 1221 | {
|
---|
[1701] | 1222 | return (float)obj->NumberOfFaces();
|
---|
[728] | 1223 | }
|
---|
| 1224 | default:
|
---|
[752] | 1225 | cout << "default" << endl;
|
---|
| 1226 | return 1.0f;
|
---|
[728] | 1227 | }
|
---|
| 1228 |
|
---|
| 1229 | // should not come here
|
---|
[752] | 1230 | return 0.0f;
|
---|
[728] | 1231 | }
|
---|
| 1232 |
|
---|
| 1233 |
|
---|
[704] | 1234 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1235 | const ViewCellContainer &viewCells)
|
---|
| 1236 | {
|
---|
| 1237 | ViewCell *root = currentViewCell;
|
---|
| 1238 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1239 |
|
---|
[704] | 1240 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1241 |
|
---|
[704] | 1242 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1243 |
|
---|
| 1244 | /////////////////
|
---|
[704] | 1245 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1246 |
|
---|
[704] | 1247 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1248 | {
|
---|
[704] | 1249 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1250 |
|
---|
[704] | 1251 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1252 |
|
---|
[704] | 1253 | // remove from vector
|
---|
| 1254 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1255 | neighborhood.pop_back();
|
---|
[705] | 1256 |
|
---|
[704] | 1257 | if (!bestViewCell || !root)
|
---|
[1545] | 1258 | cout << "warning!!" << endl;
|
---|
[705] | 1259 |
|
---|
[704] | 1260 | // create new root of the hierarchy
|
---|
| 1261 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1262 | }
|
---|
| 1263 |
|
---|
[704] | 1264 | return root;
|
---|
[703] | 1265 | }
|
---|
| 1266 |
|
---|
[704] | 1267 |
|
---|
[713] | 1268 | struct SortableViewCellEntry {
|
---|
| 1269 |
|
---|
[1174] | 1270 | SortableViewCellEntry() {}
|
---|
| 1271 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1272 |
|
---|
[1174] | 1273 | float mValue;
|
---|
| 1274 | ViewCell *mViewCell;
|
---|
| 1275 |
|
---|
| 1276 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1277 | return a.mValue < b.mValue;
|
---|
| 1278 | }
|
---|
[713] | 1279 | };
|
---|
| 1280 |
|
---|
[1174] | 1281 |
|
---|
| 1282 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1283 | const ViewCellContainer &viewCells)
|
---|
[713] | 1284 | {
|
---|
| 1285 |
|
---|
| 1286 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1287 | int i, j;
|
---|
| 1288 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1289 | if (viewCells[i] != currentViewCell)
|
---|
| 1290 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1291 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1292 | viewCells[i]);
|
---|
| 1293 | }
|
---|
| 1294 | neighborhood.resize(j);
|
---|
| 1295 |
|
---|
| 1296 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1297 |
|
---|
| 1298 | ViewCell *root = currentViewCell;
|
---|
| 1299 |
|
---|
| 1300 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1301 |
|
---|
| 1302 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1303 | //-- use priority queue to merge leaf pairs
|
---|
| 1304 |
|
---|
| 1305 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1306 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1307 | {
|
---|
[713] | 1308 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1309 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1310 | // create new root of the hierarchy
|
---|
| 1311 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1312 | // set negative cost so that this view cell gets deleted
|
---|
| 1313 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1314 | }
|
---|
[713] | 1315 |
|
---|
| 1316 | return root;
|
---|
| 1317 | }
|
---|
| 1318 |
|
---|
| 1319 | void
|
---|
| 1320 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1321 | ) const
|
---|
| 1322 | {
|
---|
[1586] | 1323 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1324 | {
|
---|
| 1325 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1326 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1327 |
|
---|
| 1328 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1329 | DeleteLocalMergeTree(*it);
|
---|
| 1330 |
|
---|
| 1331 | vci->mChildren.clear();
|
---|
| 1332 |
|
---|
| 1333 | delete vci;
|
---|
[713] | 1334 | }
|
---|
| 1335 | }
|
---|
| 1336 |
|
---|
[1021] | 1337 |
|
---|
[564] | 1338 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1339 | int minPvsSize,
|
---|
[562] | 1340 | int maxPvsSize) const
|
---|
[547] | 1341 | {
|
---|
[569] | 1342 |
|
---|
[1707] | 1343 | if ((vc->GetPvs().EvalPvsCost() > maxPvsSize) ||
|
---|
| 1344 | (vc->GetPvs().EvalPvsCost() < minPvsSize))
|
---|
[564] | 1345 | {
|
---|
[710] | 1346 | return false;
|
---|
[561] | 1347 | }
|
---|
[570] | 1348 |
|
---|
[710] | 1349 | return true;
|
---|
[547] | 1350 | }
|
---|
| 1351 |
|
---|
| 1352 |
|
---|
[710] | 1353 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1354 | ViewCellContainer &viewCells) const
|
---|
| 1355 | {
|
---|
| 1356 | return 0;
|
---|
| 1357 | };
|
---|
| 1358 |
|
---|
[1021] | 1359 |
|
---|
[697] | 1360 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1361 | const float width) const
|
---|
| 1362 | {
|
---|
[746] | 1363 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1364 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1365 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1366 |
|
---|
| 1367 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1368 | }
|
---|
| 1369 |
|
---|
| 1370 |
|
---|
[904] | 1371 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1372 | PrVs &prvs,
|
---|
| 1373 | const float filterWidth)
|
---|
[697] | 1374 | {
|
---|
[1594] | 1375 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1376 |
|
---|
[1594] | 1377 | if (mMaxFilterSize < 1) {
|
---|
| 1378 | prvs.mViewCell = currentViewCell;
|
---|
| 1379 | return;
|
---|
| 1380 | }
|
---|
| 1381 |
|
---|
| 1382 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1383 |
|
---|
| 1384 | if (currentViewCell)
|
---|
[1545] | 1385 | {
|
---|
[1594] | 1386 | ViewCellContainer viewCells;
|
---|
| 1387 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1388 |
|
---|
| 1389 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1390 | prvs.mViewCell = root;
|
---|
| 1391 |
|
---|
[1545] | 1392 | }
|
---|
[1594] | 1393 | else
|
---|
[1545] | 1394 | {
|
---|
[1594] | 1395 | prvs.mViewCell = NULL;
|
---|
| 1396 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1397 | }
|
---|
[697] | 1398 | }
|
---|
| 1399 |
|
---|
| 1400 |
|
---|
[581] | 1401 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1402 | {
|
---|
[1002] | 1403 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1404 | }
|
---|
| 1405 |
|
---|
| 1406 |
|
---|
[564] | 1407 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1408 | int minPvs,
|
---|
[562] | 1409 | int maxPvs) const
|
---|
| 1410 | {
|
---|
| 1411 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1412 | }
|
---|
| 1413 |
|
---|
[577] | 1414 |
|
---|
[569] | 1415 | void
|
---|
| 1416 | ViewCellsManager::SetValidity(
|
---|
[570] | 1417 | int minPvsSize,
|
---|
[569] | 1418 | int maxPvsSize) const
|
---|
| 1419 | {
|
---|
[991] | 1420 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1421 |
|
---|
[991] | 1422 |
|
---|
| 1423 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1424 | {
|
---|
| 1425 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1426 | }
|
---|
[569] | 1427 | }
|
---|
[562] | 1428 |
|
---|
[569] | 1429 | void
|
---|
| 1430 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1431 | const float minValid,
|
---|
| 1432 | const float maxValid
|
---|
| 1433 | )
|
---|
| 1434 | {
|
---|
[1761] | 1435 | ObjectPvs dummyPvs;
|
---|
| 1436 | // update pvs sizes
|
---|
| 1437 | for (int i = 0; i < (int)mViewCells.size(); ++ i) {
|
---|
| 1438 | UpdatePvsForEvaluation(mViewCells[i], dummyPvs);
|
---|
| 1439 | }
|
---|
| 1440 |
|
---|
| 1441 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 1442 |
|
---|
| 1443 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1444 | int end = (int)(mViewCells.size() * maxValid);
|
---|
| 1445 |
|
---|
| 1446 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1447 | {
|
---|
[1761] | 1448 | // cout<<"pvs:"<<mViewCells[i]->GetCachedPvsCost()<<endl;
|
---|
| 1449 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
[997] | 1450 | }
|
---|
[569] | 1451 | }
|
---|
| 1452 |
|
---|
[1148] | 1453 |
|
---|
[991] | 1454 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1455 | {
|
---|
[991] | 1456 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1457 | int valid = 0;
|
---|
| 1458 |
|
---|
| 1459 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1460 | {
|
---|
| 1461 | if ((*it)->GetValid())
|
---|
| 1462 | ++ valid;
|
---|
| 1463 | }
|
---|
| 1464 |
|
---|
| 1465 | return valid;
|
---|
[569] | 1466 | }
|
---|
| 1467 |
|
---|
[577] | 1468 |
|
---|
[1545] | 1469 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1470 | const bool extrudeBaseTriangles)
|
---|
[440] | 1471 | {
|
---|
[1545] | 1472 | /// we use predefined view cells from now on
|
---|
| 1473 | mUsePredefinedViewCells = true;
|
---|
[440] | 1474 | X3dParser parser;
|
---|
[1545] | 1475 |
|
---|
| 1476 | if (extrudeBaseTriangles)
|
---|
| 1477 | {
|
---|
| 1478 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1479 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1480 |
|
---|
| 1481 | if (!success)
|
---|
| 1482 | return false;
|
---|
[1545] | 1483 | }
|
---|
| 1484 | else
|
---|
| 1485 | {
|
---|
| 1486 | // hack: use standard mesh loading
|
---|
| 1487 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1488 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1489 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1490 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1491 |
|
---|
| 1492 | if (!success)
|
---|
[1545] | 1493 | {
|
---|
[1563] | 1494 | DEL_PTR(root);
|
---|
| 1495 | return false;
|
---|
| 1496 | }
|
---|
| 1497 |
|
---|
| 1498 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1499 |
|
---|
| 1500 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1501 | {
|
---|
| 1502 | Mesh *mesh;
|
---|
| 1503 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1504 | {
|
---|
[1563] | 1505 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1506 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1507 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1508 | }
|
---|
[1563] | 1509 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1510 | {
|
---|
| 1511 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1512 | mesh = mit->GetMesh();
|
---|
| 1513 | }
|
---|
| 1514 | mesh->ComputeBoundingBox();
|
---|
| 1515 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1516 | }
|
---|
[1563] | 1517 |
|
---|
[1545] | 1518 | DEL_PTR(root);
|
---|
| 1519 | }
|
---|
[503] | 1520 |
|
---|
[1563] | 1521 | // set view space box to bounding box of the view cells
|
---|
| 1522 | AxisAlignedBox3 bbox;
|
---|
| 1523 | bbox.Initialize();
|
---|
| 1524 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1525 |
|
---|
| 1526 | for (; it != it_end; ++ it)
|
---|
[1545] | 1527 | {
|
---|
[1563] | 1528 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1529 | }
|
---|
[503] | 1530 |
|
---|
[1563] | 1531 | SetViewSpaceBox(bbox);
|
---|
| 1532 | cout << "view space box: " << bbox << endl;
|
---|
| 1533 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1534 |
|
---|
| 1535 | return true;
|
---|
[440] | 1536 | }
|
---|
| 1537 |
|
---|
[485] | 1538 |
|
---|
[487] | 1539 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1540 | {
|
---|
[1867] | 1541 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
| 1542 | return true;
|
---|
[487] | 1543 | }
|
---|
| 1544 |
|
---|
[1867] | 1545 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const
|
---|
| 1546 | {
|
---|
| 1547 | viewPoint = mViewSpaceBox.GetRandomPoint(params);
|
---|
| 1548 | return true;
|
---|
| 1549 | }
|
---|
[487] | 1550 |
|
---|
[1867] | 1551 |
|
---|
[557] | 1552 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1553 | {
|
---|
[610] | 1554 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1555 | }
|
---|
| 1556 |
|
---|
| 1557 |
|
---|
[490] | 1558 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1559 | {
|
---|
[1444] | 1560 | if (!ViewCellsConstructed())
|
---|
| 1561 | {
|
---|
| 1562 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1563 | }
|
---|
| 1564 | else
|
---|
| 1565 | {
|
---|
| 1566 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1567 | return false;
|
---|
[837] | 1568 |
|
---|
[1444] | 1569 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1570 |
|
---|
| 1571 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1572 | return false;
|
---|
| 1573 | }
|
---|
| 1574 |
|
---|
| 1575 | return true;
|
---|
[490] | 1576 | }
|
---|
| 1577 |
|
---|
[501] | 1578 |
|
---|
[1867] | 1579 | float
|
---|
| 1580 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1581 | const bool addRays,
|
---|
| 1582 | const bool storeViewCells)
|
---|
[440] | 1583 | {
|
---|
[1867] | 1584 | float sum = 0.0f;
|
---|
[1900] | 1585 |
|
---|
[1867] | 1586 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1587 |
|
---|
| 1588 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
[1444] | 1589 | {
|
---|
[1900] | 1590 | if (!ViewCellsConstructed()) {
|
---|
| 1591 | // view cells not yet constructed
|
---|
| 1592 | // just take the lenghts of the rays as contributions
|
---|
| 1593 | if ((*it)->mTerminationObject)
|
---|
| 1594 | sum += (*it)->Length();
|
---|
| 1595 | } else {
|
---|
| 1596 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1597 | }
|
---|
[1444] | 1598 | }
|
---|
[1867] | 1599 |
|
---|
| 1600 | return sum;
|
---|
[440] | 1601 | }
|
---|
| 1602 |
|
---|
[485] | 1603 |
|
---|
[479] | 1604 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1605 | {
|
---|
[660] | 1606 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1607 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1608 |
|
---|
| 1609 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1610 | {
|
---|
[660] | 1611 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1612 | }
|
---|
[479] | 1613 | }
|
---|
| 1614 |
|
---|
[485] | 1615 |
|
---|
[580] | 1616 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1617 | float &expectedRenderCost,
|
---|
[580] | 1618 | float &deviation,
|
---|
| 1619 | float &variance,
|
---|
[1709] | 1620 | float &totalCost,
|
---|
[580] | 1621 | float &avgRenderCost)
|
---|
[579] | 1622 | {
|
---|
[1444] | 1623 | ////////////
|
---|
| 1624 | //-- compute expected value
|
---|
[579] | 1625 |
|
---|
| 1626 | totalRenderCost = 0;
|
---|
[1709] | 1627 | totalCost = 0;
|
---|
[579] | 1628 |
|
---|
[1444] | 1629 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1630 |
|
---|
[579] | 1631 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1632 | {
|
---|
| 1633 | ViewCell *vc = *it;
|
---|
[1707] | 1634 | totalRenderCost += vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[1709] | 1635 | totalCost += (int)vc->GetPvs().EvalPvsCost();
|
---|
[579] | 1636 | }
|
---|
| 1637 |
|
---|
[580] | 1638 | // normalize with view space box
|
---|
| 1639 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1640 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[1709] | 1641 | avgRenderCost = totalCost / (float)mViewCells.size();
|
---|
[579] | 1642 |
|
---|
| 1643 |
|
---|
[1444] | 1644 | ///////////
|
---|
[580] | 1645 | //-- compute standard defiation
|
---|
[1444] | 1646 |
|
---|
[579] | 1647 | variance = 0;
|
---|
[580] | 1648 | deviation = 0;
|
---|
[579] | 1649 |
|
---|
| 1650 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1651 | {
|
---|
| 1652 | ViewCell *vc = *it;
|
---|
| 1653 |
|
---|
[1707] | 1654 | float renderCost = vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[580] | 1655 | float dev;
|
---|
[579] | 1656 |
|
---|
[580] | 1657 | if (1)
|
---|
[1707] | 1658 | dev = fabs(avgRenderCost - (float)vc->GetPvs().EvalPvsCost());
|
---|
[580] | 1659 | else
|
---|
| 1660 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1661 |
|
---|
[580] | 1662 | deviation += dev;
|
---|
| 1663 | variance += dev * dev;
|
---|
[579] | 1664 | }
|
---|
[580] | 1665 |
|
---|
[579] | 1666 | variance /= (float)mViewCells.size();
|
---|
[580] | 1667 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1668 | }
|
---|
| 1669 |
|
---|
| 1670 |
|
---|
[478] | 1671 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1672 | {
|
---|
| 1673 | return viewCell->GetArea();
|
---|
| 1674 | }
|
---|
| 1675 |
|
---|
| 1676 |
|
---|
| 1677 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1678 | {
|
---|
| 1679 | return viewCell->GetVolume();
|
---|
| 1680 | }
|
---|
| 1681 |
|
---|
[485] | 1682 |
|
---|
[1843] | 1683 | void ViewCellsManager::CompressViewCells()
|
---|
| 1684 | {
|
---|
[1889] | 1685 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
| 1686 | return;
|
---|
| 1687 |
|
---|
[1843] | 1688 | ////////////
|
---|
| 1689 | //-- compression
|
---|
[1889] | 1690 |
|
---|
| 1691 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1843] | 1692 |
|
---|
[1889] | 1693 | cout << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 1694 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[1843] | 1695 |
|
---|
[1889] | 1696 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[1843] | 1697 |
|
---|
[1889] | 1698 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 1699 |
|
---|
| 1700 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 1701 | cout << "number of entries after compress: " << pvsEntries << endl;
|
---|
[1843] | 1702 | }
|
---|
| 1703 |
|
---|
| 1704 |
|
---|
[503] | 1705 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1706 | const float height) const
|
---|
| 1707 | {
|
---|
| 1708 | // one mesh per view cell
|
---|
[1001] | 1709 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1710 |
|
---|
[1545] | 1711 | ////////////
|
---|
[440] | 1712 | //-- construct prism
|
---|
| 1713 |
|
---|
[503] | 1714 | // bottom
|
---|
[440] | 1715 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1716 | // top
|
---|
| 1717 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1718 | // sides
|
---|
| 1719 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1720 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1721 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1722 |
|
---|
[1545] | 1723 |
|
---|
| 1724 | /////////////
|
---|
| 1725 | //-- extrude new vertices for top of prism
|
---|
| 1726 |
|
---|
[1586] | 1727 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1728 | Triangle3 topTri;
|
---|
[440] | 1729 |
|
---|
| 1730 | // add base vertices and calculate top vertices
|
---|
| 1731 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1732 | {
|
---|
[440] | 1733 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1734 | }
|
---|
[503] | 1735 |
|
---|
| 1736 | // add top vertices
|
---|
[440] | 1737 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1738 | {
|
---|
[440] | 1739 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1740 | }
|
---|
[503] | 1741 |
|
---|
[1545] | 1742 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1743 | mesh->ComputeBoundingBox();
|
---|
| 1744 |
|
---|
[440] | 1745 | return GenerateViewCell(mesh);
|
---|
| 1746 | }
|
---|
| 1747 |
|
---|
[485] | 1748 |
|
---|
[551] | 1749 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1750 | {
|
---|
| 1751 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1752 |
|
---|
[1768] | 1753 | // volume and area of the view cells are recomputed
|
---|
| 1754 | // a view cell mesh is created
|
---|
[551] | 1755 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1756 | {
|
---|
| 1757 | Finalize(*it, createMesh);
|
---|
| 1758 | }
|
---|
[555] | 1759 |
|
---|
[1584] | 1760 | mViewCellsTree->AssignRandomColors();
|
---|
| 1761 |
|
---|
[555] | 1762 | mTotalAreaValid = false;
|
---|
[551] | 1763 | }
|
---|
| 1764 |
|
---|
| 1765 |
|
---|
| 1766 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1767 | {
|
---|
| 1768 | // implemented in subclasses
|
---|
| 1769 | }
|
---|
| 1770 |
|
---|
[1001] | 1771 |
|
---|
[1168] | 1772 | /** fast way of merging 2 view cells.
|
---|
| 1773 | */
|
---|
[582] | 1774 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1775 | {
|
---|
[580] | 1776 | // generate parent view cell
|
---|
[752] | 1777 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1778 |
|
---|
[752] | 1779 | vc->GetPvs().Clear();
|
---|
[1740] | 1780 | ObjectPvs::Merge(vc->GetPvs(), left->GetPvs(), right->GetPvs());
|
---|
[752] | 1781 |
|
---|
[710] | 1782 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1783 | vc->mChildren.push_back(left);
|
---|
| 1784 | vc->mChildren.push_back(right);
|
---|
| 1785 |
|
---|
[752] | 1786 | // update pvs size
|
---|
[1707] | 1787 | UpdateScalarPvsSize(vc, vc->GetPvs().EvalPvsCost(), vc->GetPvs().GetSize());
|
---|
[752] | 1788 |
|
---|
[440] | 1789 | return vc;
|
---|
| 1790 | }
|
---|
| 1791 |
|
---|
[485] | 1792 |
|
---|
[582] | 1793 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1794 | {
|
---|
[752] | 1795 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1796 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1797 |
|
---|
| 1798 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1799 | {
|
---|
[1740] | 1800 | vc->GetPvs().MergeInPlace((*it)->GetPvs());
|
---|
| 1801 |
|
---|
[710] | 1802 | vc->mChildren.push_back(*it);
|
---|
[582] | 1803 | }
|
---|
| 1804 |
|
---|
| 1805 | return vc;
|
---|
| 1806 | }
|
---|
| 1807 |
|
---|
| 1808 |
|
---|
[480] | 1809 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1810 | {
|
---|
| 1811 | mRenderer = renderer;
|
---|
| 1812 | }
|
---|
[441] | 1813 |
|
---|
[485] | 1814 |
|
---|
[580] | 1815 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1816 | {
|
---|
[580] | 1817 | return mViewCellsTree;
|
---|
[440] | 1818 | }
|
---|
| 1819 |
|
---|
| 1820 |
|
---|
| 1821 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1822 | {
|
---|
[444] | 1823 | mVisualizationSamples = visSamples;
|
---|
[440] | 1824 | }
|
---|
| 1825 |
|
---|
[485] | 1826 |
|
---|
[440] | 1827 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1828 | {
|
---|
| 1829 | mConstructionSamples = constructionSamples;
|
---|
| 1830 | }
|
---|
| 1831 |
|
---|
[485] | 1832 |
|
---|
[574] | 1833 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1834 | {
|
---|
| 1835 | mInitialSamples = initialSamples;
|
---|
| 1836 | }
|
---|
| 1837 |
|
---|
| 1838 |
|
---|
[440] | 1839 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1840 | {
|
---|
| 1841 | mPostProcessSamples = postProcessSamples;
|
---|
| 1842 | }
|
---|
| 1843 |
|
---|
[485] | 1844 |
|
---|
[440] | 1845 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1846 | {
|
---|
| 1847 | return mVisualizationSamples;
|
---|
| 1848 | }
|
---|
| 1849 |
|
---|
[485] | 1850 |
|
---|
[440] | 1851 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1852 | {
|
---|
| 1853 | return mConstructionSamples;
|
---|
| 1854 | }
|
---|
| 1855 |
|
---|
[485] | 1856 |
|
---|
[440] | 1857 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1858 | {
|
---|
| 1859 | return mPostProcessSamples;
|
---|
| 1860 | }
|
---|
| 1861 |
|
---|
[485] | 1862 |
|
---|
[719] | 1863 | void ViewCellsManager::UpdatePvs()
|
---|
| 1864 | {
|
---|
[1737] | 1865 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
| 1866 | return;
|
---|
| 1867 |
|
---|
| 1868 | mViewCellPvsIsUpdated = true;
|
---|
| 1869 |
|
---|
| 1870 | ViewCellContainer leaves;
|
---|
| 1871 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1872 |
|
---|
| 1873 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1874 |
|
---|
| 1875 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[719] | 1876 | {
|
---|
[1737] | 1877 | mViewCellsTree->PropagatePvs(*it);
|
---|
[719] | 1878 | }
|
---|
| 1879 | }
|
---|
| 1880 |
|
---|
| 1881 |
|
---|
[485] | 1882 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1883 | {
|
---|
[1737] | 1884 | // update pvs of view cells tree if necessary
|
---|
| 1885 | UpdatePvs();
|
---|
| 1886 |
|
---|
| 1887 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1888 |
|
---|
| 1889 | stat.viewcells = 0;
|
---|
| 1890 | stat.minPvs = 100000000;
|
---|
| 1891 | stat.maxPvs = 0;
|
---|
| 1892 | stat.avgPvs = 0.0f;
|
---|
| 1893 | stat.avgFilteredPvs = 0.0f;
|
---|
| 1894 | stat.avgFilterContribution = 0.0f;
|
---|
[1761] | 1895 | stat.avgFilterRadius = 0;
|
---|
| 1896 | stat.avgFilterRatio = 0;
|
---|
[1737] | 1897 |
|
---|
| 1898 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1899 | {
|
---|
[1737] | 1900 | ViewCell *viewcell = *it;
|
---|
[1761] | 1901 | if (viewcell->GetValid()) {
|
---|
| 1902 | const float pvsCost = mViewCellsTree->GetPvsCost(viewcell);
|
---|
| 1903 |
|
---|
| 1904 | if (pvsCost < stat.minPvs)
|
---|
| 1905 | stat.minPvs = pvsCost;
|
---|
| 1906 | if (pvsCost > stat.maxPvs)
|
---|
| 1907 | stat.maxPvs = pvsCost;
|
---|
| 1908 |
|
---|
| 1909 | stat.avgPvs += pvsCost;
|
---|
[1785] | 1910 |
|
---|
| 1911 | bool evaluateFilter;
|
---|
| 1912 | Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluateFilter", evaluateFilter);
|
---|
[1761] | 1913 |
|
---|
| 1914 |
|
---|
| 1915 | if (evaluateFilter) {
|
---|
[1877] | 1916 | ObjectPvs filteredPvs;
|
---|
[1824] | 1917 | PvsFilterStatistics fstat = ApplyFilter2(viewcell,
|
---|
[1877] | 1918 | false,
|
---|
| 1919 | 2.0f,
|
---|
| 1920 | filteredPvs);
|
---|
[1761] | 1921 |
|
---|
| 1922 | float filteredCost = filteredPvs.EvalPvsCost();
|
---|
| 1923 | stat.avgFilteredPvs += filteredCost;
|
---|
| 1924 | stat.avgFilterContribution += filteredCost - pvsCost;
|
---|
[1877] | 1925 |
|
---|
[1761] | 1926 | stat.avgFilterRadius += fstat.mAvgFilterRadius;
|
---|
[1771] | 1927 | int sum = fstat.mGlobalFilterCount + fstat.mLocalFilterCount;
|
---|
| 1928 | if (sum) {
|
---|
| 1929 | stat.avgFilterRatio += fstat.mLocalFilterCount /
|
---|
| 1930 | (float) sum;
|
---|
| 1931 | }
|
---|
[1761] | 1932 |
|
---|
| 1933 | } else {
|
---|
| 1934 | stat.avgFilteredPvs += pvsCost;
|
---|
| 1935 | stat.avgFilterContribution += 0;
|
---|
| 1936 | }
|
---|
| 1937 |
|
---|
| 1938 | ++ stat.viewcells;
|
---|
[1737] | 1939 | }
|
---|
[719] | 1940 | }
|
---|
[1737] | 1941 |
|
---|
| 1942 | if (stat.viewcells) {
|
---|
| 1943 | stat.avgPvs/=stat.viewcells;
|
---|
| 1944 | stat.avgFilteredPvs/=stat.viewcells;
|
---|
| 1945 | stat.avgFilterContribution/=stat.viewcells;
|
---|
[1761] | 1946 | stat.avgFilterRadius/=stat.viewcells;
|
---|
| 1947 | stat.avgFilterRatio/=stat.viewcells;
|
---|
[1737] | 1948 | }
|
---|
[467] | 1949 | }
|
---|
| 1950 |
|
---|
[485] | 1951 |
|
---|
[480] | 1952 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1953 | {
|
---|
| 1954 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1955 | PvsStatistics pvsStat;
|
---|
| 1956 | GetPvsStatistics(pvsStat);
|
---|
| 1957 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
[1737] | 1958 | s<<"#AVG_FILTERED_PVS\n"<<pvsStat.avgFilteredPvs<<endl;
|
---|
| 1959 | s<<"#AVG_FILTER_CONTRIBUTION\n"<<pvsStat.avgFilterContribution<<endl;
|
---|
[1761] | 1960 | s<<"#AVG_FILTER_RADIUS\n"<<pvsStat.avgFilterRadius<<endl;
|
---|
| 1961 | s<<"#AVG_FILTER_RATIO\n"<<pvsStat.avgFilterRatio<<endl;
|
---|
[467] | 1962 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1963 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1964 | }
|
---|
| 1965 |
|
---|
[485] | 1966 |
|
---|
[532] | 1967 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1968 | {
|
---|
| 1969 | return 0;
|
---|
| 1970 | }
|
---|
| 1971 |
|
---|
[547] | 1972 |
|
---|
[468] | 1973 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1974 | {
|
---|
| 1975 | return mViewCells;
|
---|
| 1976 | }
|
---|
| 1977 |
|
---|
[485] | 1978 |
|
---|
[487] | 1979 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1980 | {
|
---|
[542] | 1981 | mViewSpaceBox = box;
|
---|
[1074] | 1982 |
|
---|
[1027] | 1983 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1984 | CreateClipPlane();
|
---|
[1027] | 1985 | // the total area of the view space has changed
|
---|
[577] | 1986 | mTotalAreaValid = false;
|
---|
[487] | 1987 | }
|
---|
| 1988 |
|
---|
| 1989 |
|
---|
[660] | 1990 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1991 | {
|
---|
| 1992 | int axis = 0;
|
---|
[667] | 1993 | float pos;
|
---|
[1418] | 1994 | bool orientation;
|
---|
| 1995 | Vector3 absPos;
|
---|
[591] | 1996 |
|
---|
[1004] | 1997 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1998 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1999 |
|
---|
[1418] | 2000 | if (axis < 0)
|
---|
| 2001 | {
|
---|
| 2002 | axis = -axis;
|
---|
| 2003 | orientation = false;
|
---|
| 2004 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 2005 | }
|
---|
| 2006 | else
|
---|
| 2007 | {
|
---|
| 2008 | orientation = true;
|
---|
| 2009 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 2010 | }
|
---|
| 2011 |
|
---|
[1416] | 2012 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 2013 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 2014 | }
|
---|
| 2015 |
|
---|
| 2016 |
|
---|
[519] | 2017 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 2018 | {
|
---|
[542] | 2019 | return mViewSpaceBox;
|
---|
[519] | 2020 | }
|
---|
| 2021 |
|
---|
| 2022 |
|
---|
[480] | 2023 | void ViewCellsManager::ResetViewCells()
|
---|
| 2024 | {
|
---|
[720] | 2025 | // recollect view cells
|
---|
[480] | 2026 | mViewCells.clear();
|
---|
| 2027 | CollectViewCells();
|
---|
[590] | 2028 |
|
---|
[720] | 2029 | // stats are computed once more
|
---|
[480] | 2030 | EvaluateViewCellsStats();
|
---|
[590] | 2031 |
|
---|
[520] | 2032 | // has to be recomputed
|
---|
[480] | 2033 | mTotalAreaValid = false;
|
---|
| 2034 | }
|
---|
| 2035 |
|
---|
[485] | 2036 |
|
---|
[547] | 2037 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 2038 | {
|
---|
| 2039 | return mMaxPvsSize;
|
---|
| 2040 | }
|
---|
| 2041 |
|
---|
[564] | 2042 |
|
---|
[562] | 2043 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 2044 | {
|
---|
| 2045 | return mMinPvsSize;
|
---|
| 2046 | }
|
---|
| 2047 |
|
---|
| 2048 |
|
---|
| 2049 |
|
---|
[561] | 2050 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 2051 | {
|
---|
| 2052 | return mMaxPvsRatio;
|
---|
| 2053 | }
|
---|
| 2054 |
|
---|
[1594] | 2055 |
|
---|
[1877] | 2056 |
|
---|
| 2057 | #define PVS_ADD_DIRTY 1
|
---|
| 2058 |
|
---|
| 2059 | float
|
---|
| 2060 | ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
[1900] | 2061 | const bool addRays,
|
---|
| 2062 | const bool storeViewCells)
|
---|
[1790] | 2063 | {
|
---|
[1903] | 2064 | ray.mPvsContribution = 0;
|
---|
| 2065 | ray.mRelativePvsContribution = 0.0f;
|
---|
[1877] | 2066 |
|
---|
[1903] | 2067 | if (ray.mTerminationObject==NULL)
|
---|
| 2068 | return 0.0f;
|
---|
| 2069 |
|
---|
| 2070 | ViewCellContainer viewcells;
|
---|
| 2071 |
|
---|
| 2072 | static Ray hray;
|
---|
| 2073 | hray.Init(ray);
|
---|
| 2074 |
|
---|
| 2075 | float tmin = 0, tmax = 1.0;
|
---|
| 2076 |
|
---|
| 2077 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 2078 | return 0;
|
---|
| 2079 |
|
---|
| 2080 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 2081 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 2082 |
|
---|
| 2083 | ViewCell::NewMail();
|
---|
| 2084 |
|
---|
| 2085 | // traverse the view space subdivision
|
---|
| 2086 | CastLineSegment(origin, termination, viewcells);
|
---|
| 2087 |
|
---|
| 2088 | if (storeViewCells)
|
---|
[1877] | 2089 | {
|
---|
[1903] | 2090 | // copy viewcells memory efficiently
|
---|
| 2091 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 2092 | ray.mViewCells = viewcells;
|
---|
[570] | 2093 | }
|
---|
[1903] | 2094 |
|
---|
| 2095 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 2096 |
|
---|
| 2097 | Intersectable *terminationObj = GetIntersectable(ray, true);
|
---|
| 2098 |
|
---|
| 2099 |
|
---|
| 2100 | for (; it != viewcells.end(); ++ it)
|
---|
[664] | 2101 | {
|
---|
[1903] | 2102 | ViewCell *viewcell = *it;
|
---|
| 2103 |
|
---|
| 2104 | if (viewcell->GetValid())
|
---|
| 2105 | {
|
---|
| 2106 | // if ray not outside of view space
|
---|
| 2107 | float contribution;
|
---|
| 2108 |
|
---|
| 2109 | if (terminationObj)
|
---|
[1877] | 2110 | {
|
---|
[1903] | 2111 | // todo: maybe not correct for kd node pvs
|
---|
| 2112 | bool absContribution =
|
---|
| 2113 | viewcell->GetPvs().GetSampleContribution(
|
---|
| 2114 | terminationObj,
|
---|
| 2115 | ray.mPdf,
|
---|
| 2116 | contribution);
|
---|
[1900] | 2117 | #if DIST_WEIGHTED_CONTRIBUTION
|
---|
[1903] | 2118 | // clear the relative contribution
|
---|
| 2119 | contribution = 0.0f;
|
---|
[1900] | 2120 | #endif
|
---|
[1903] | 2121 | if (absContribution)
|
---|
[1824] | 2122 | {
|
---|
[1903] | 2123 | ++ ray.mPvsContribution;
|
---|
| 2124 | if (addRays) {
|
---|
[1877] | 2125 | #if PVS_ADD_DIRTY
|
---|
[1903] | 2126 | viewcell->GetPvs().AddSampleDirtyCheck(terminationObj, ray.mPdf);
|
---|
| 2127 | if (viewcell->GetPvs().RequiresResort()) {
|
---|
| 2128 | viewcell->GetPvs().SimpleSort();
|
---|
| 2129 | }
|
---|
[1877] | 2130 | #else
|
---|
[1903] | 2131 | viewcell->GetPvs().AddSample(terminationObj, ray.mPdf);
|
---|
[718] | 2132 | #endif
|
---|
[1903] | 2133 | }
|
---|
[1900] | 2134 | #if DIST_WEIGHTED_CONTRIBUTION
|
---|
[1903] | 2135 | // recalculate the contribution - weight the 1.0f contribution by the sqr distance to the
|
---|
| 2136 | // object-> a new contribution in the proximity of the viewcell has a larger weight!
|
---|
| 2137 | contribution = 1.0f/SqrDistance(GetViewCellBox(viewcell).Center(),
|
---|
| 2138 | ray.mTermination);
|
---|
[1900] | 2139 | #endif
|
---|
[1877] | 2140 | }
|
---|
[1903] | 2141 |
|
---|
| 2142 | ray.mRelativePvsContribution += contribution;
|
---|
[664] | 2143 | }
|
---|
| 2144 | }
|
---|
[563] | 2145 | }
|
---|
[1900] | 2146 |
|
---|
| 2147 | #if USE_RAY_LENGTH_AS_CONTRIBUTION
|
---|
| 2148 | float c = 0.0f;
|
---|
| 2149 | if (terminationObj)
|
---|
| 2150 | c = ray.Length();
|
---|
| 2151 | ray.mRelativePvsContribution = ray.mPvsContribution = c;
|
---|
| 2152 | return c;
|
---|
| 2153 | #else
|
---|
[1877] | 2154 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 2155 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[1900] | 2156 | #endif
|
---|
[468] | 2157 | }
|
---|
| 2158 |
|
---|
| 2159 |
|
---|
[1877] | 2160 |
|
---|
[469] | 2161 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 2162 | const int maxSize,
|
---|
[503] | 2163 | VssRayContainer &usedRays,
|
---|
[485] | 2164 | VssRayContainer *savedRays) const
|
---|
[469] | 2165 | {
|
---|
[485] | 2166 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 2167 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 2168 |
|
---|
[485] | 2169 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 2170 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 2171 | {
|
---|
[473] | 2172 | if (Random(1.0f) < prop)
|
---|
[485] | 2173 | usedRays.push_back(*it);
|
---|
| 2174 | else if (savedRays)
|
---|
| 2175 | savedRays->push_back(*it);
|
---|
[469] | 2176 | }
|
---|
| 2177 | }
|
---|
| 2178 |
|
---|
[477] | 2179 |
|
---|
[728] | 2180 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 2181 | {
|
---|
[1709] | 2182 | return (float)mViewCellsTree->GetPvsCost(viewCell);
|
---|
[605] | 2183 | }
|
---|
| 2184 |
|
---|
| 2185 |
|
---|
[477] | 2186 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 2187 | {
|
---|
| 2188 | // if already computed
|
---|
| 2189 | if (mTotalAreaValid)
|
---|
[728] | 2190 | {
|
---|
[470] | 2191 | return mTotalArea;
|
---|
[728] | 2192 | }
|
---|
[470] | 2193 |
|
---|
| 2194 | mTotalArea = 0;
|
---|
| 2195 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2196 |
|
---|
| 2197 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 2198 | {
|
---|
| 2199 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2200 | mTotalArea += GetArea(*it);
|
---|
[480] | 2201 | }
|
---|
| 2202 |
|
---|
[470] | 2203 | mTotalAreaValid = true;
|
---|
| 2204 |
|
---|
| 2205 | return mTotalArea;
|
---|
| 2206 | }
|
---|
| 2207 |
|
---|
[482] | 2208 |
|
---|
[475] | 2209 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2210 | {
|
---|
[660] | 2211 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2212 | }
|
---|
| 2213 |
|
---|
[477] | 2214 |
|
---|
[508] | 2215 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2216 | {
|
---|
[651] | 2217 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2218 | {
|
---|
[651] | 2219 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2220 | }
|
---|
| 2221 | else // no view cells tree, handle view cells "myself"
|
---|
| 2222 | {
|
---|
[1551] | 2223 | int i = 0;
|
---|
| 2224 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2225 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2226 | {
|
---|
[1557] | 2227 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2228 | {
|
---|
[1551] | 2229 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2230 | }
|
---|
[1284] | 2231 | }
|
---|
| 2232 | }
|
---|
[508] | 2233 | }
|
---|
| 2234 |
|
---|
[1416] | 2235 |
|
---|
| 2236 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2237 | const AxisAlignedBox3 *sceneBox,
|
---|
[1760] | 2238 | const bool colorCode,
|
---|
| 2239 | const AxisAlignedPlane *clipPlane
|
---|
[1416] | 2240 | ) const
|
---|
[508] | 2241 | {
|
---|
[482] | 2242 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1763] | 2243 |
|
---|
[482] | 2244 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[1763] | 2245 | {
|
---|
[574] | 2246 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
[1763] | 2247 | {
|
---|
[1571] | 2248 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2249 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2250 | }
|
---|
[482] | 2251 | }
|
---|
| 2252 | }
|
---|
| 2253 |
|
---|
| 2254 |
|
---|
[517] | 2255 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2256 | {
|
---|
| 2257 | // convert to meshes
|
---|
| 2258 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2259 |
|
---|
| 2260 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2261 | {
|
---|
[517] | 2262 | if (!(*it)->GetMesh())
|
---|
[1001] | 2263 | {
|
---|
[517] | 2264 | CreateMesh(*it);
|
---|
[1001] | 2265 | }
|
---|
[503] | 2266 | }
|
---|
| 2267 | }
|
---|
| 2268 |
|
---|
[508] | 2269 |
|
---|
[944] | 2270 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2271 | const bool exportPvs,
|
---|
| 2272 | const ObjectContainer &objects)
|
---|
[564] | 2273 | {
|
---|
[508] | 2274 | return false;
|
---|
| 2275 | }
|
---|
| 2276 |
|
---|
| 2277 |
|
---|
[610] | 2278 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2279 | {
|
---|
[610] | 2280 | mNumActiveViewCells = n;
|
---|
| 2281 | mViewCells.clear();
|
---|
[1545] | 2282 | // implemented in subclasses
|
---|
[610] | 2283 | CollectViewCells();
|
---|
| 2284 | }
|
---|
[508] | 2285 |
|
---|
| 2286 |
|
---|
[1707] | 2287 | void ViewCellsManager::SetViewCellActive(ViewCell *vc) const
|
---|
| 2288 | {
|
---|
| 2289 | ViewCellContainer leaves;
|
---|
| 2290 | // sets the pointers to the currently active view cells
|
---|
| 2291 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2292 |
|
---|
| 2293 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2294 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2295 | {
|
---|
| 2296 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(vc);
|
---|
| 2297 | }
|
---|
| 2298 | }
|
---|
| 2299 |
|
---|
| 2300 |
|
---|
[660] | 2301 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2302 | {
|
---|
[1707] | 2303 | // collect leaf view cells and set the pointers to
|
---|
| 2304 | // the currently active view cells
|
---|
[660] | 2305 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2306 |
|
---|
[660] | 2307 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2308 | {
|
---|
[1707] | 2309 | SetViewCellActive(*it);
|
---|
[660] | 2310 | }
|
---|
| 2311 | }
|
---|
[508] | 2312 |
|
---|
[840] | 2313 |
|
---|
| 2314 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2315 | {
|
---|
| 2316 | return mMaxFilterSize;
|
---|
| 2317 | }
|
---|
| 2318 |
|
---|
[1001] | 2319 |
|
---|
[840] | 2320 | static const bool USE_ASCII = true;
|
---|
| 2321 |
|
---|
[1001] | 2322 |
|
---|
[840] | 2323 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2324 | const ObjectContainer &objects) const
|
---|
| 2325 | {
|
---|
| 2326 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2327 |
|
---|
| 2328 | if (USE_ASCII)
|
---|
| 2329 | {
|
---|
| 2330 | ofstream boxesOut(filename.c_str());
|
---|
| 2331 | if (!boxesOut.is_open())
|
---|
| 2332 | return false;
|
---|
| 2333 |
|
---|
| 2334 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2335 | {
|
---|
| 2336 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2337 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2338 |
|
---|
| 2339 | boxesOut << mi->GetId() << " "
|
---|
| 2340 | << box.Min().x << " "
|
---|
| 2341 | << box.Min().y << " "
|
---|
| 2342 | << box.Min().z << " "
|
---|
| 2343 | << box.Max().x << " "
|
---|
| 2344 | << box.Max().y << " "
|
---|
| 2345 | << box.Max().z << endl;
|
---|
| 2346 | }
|
---|
| 2347 |
|
---|
| 2348 | boxesOut.close();
|
---|
| 2349 | }
|
---|
| 2350 | else
|
---|
| 2351 | {
|
---|
| 2352 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2353 |
|
---|
| 2354 | if (!boxesOut.is_open())
|
---|
| 2355 | return false;
|
---|
| 2356 |
|
---|
| 2357 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2358 | {
|
---|
| 2359 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2360 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2361 | Vector3 bmin = box.Min();
|
---|
| 2362 | Vector3 bmax = box.Max();
|
---|
[850] | 2363 | int id = mi->GetId();
|
---|
[840] | 2364 |
|
---|
[850] | 2365 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2366 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2367 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2368 | }
|
---|
| 2369 |
|
---|
| 2370 | boxesOut.close();
|
---|
| 2371 | }
|
---|
| 2372 |
|
---|
| 2373 | return true;
|
---|
| 2374 | }
|
---|
| 2375 |
|
---|
| 2376 |
|
---|
[850] | 2377 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2378 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2379 | {
|
---|
[850] | 2380 | Vector3 bmin, bmax;
|
---|
| 2381 | int id;
|
---|
[840] | 2382 |
|
---|
[850] | 2383 | if (USE_ASCII)
|
---|
[840] | 2384 | {
|
---|
[850] | 2385 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2386 |
|
---|
[850] | 2387 | if (!boxesIn.is_open())
|
---|
[840] | 2388 | {
|
---|
[850] | 2389 | cout << "failed to open file " << filename << endl;
|
---|
| 2390 | return false;
|
---|
[840] | 2391 | }
|
---|
[850] | 2392 |
|
---|
| 2393 | string buf;
|
---|
| 2394 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2395 | {
|
---|
[850] | 2396 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2397 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2398 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2399 |
|
---|
| 2400 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2401 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2402 | // HACK: set bounding box to new box
|
---|
| 2403 | //mi->mBox = box;
|
---|
| 2404 |
|
---|
| 2405 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2406 | }
|
---|
| 2407 |
|
---|
[850] | 2408 | boxesIn.close();
|
---|
[840] | 2409 | }
|
---|
[850] | 2410 | else
|
---|
[840] | 2411 | {
|
---|
[850] | 2412 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2413 |
|
---|
[850] | 2414 | if (!boxesIn.is_open())
|
---|
| 2415 | return false;
|
---|
| 2416 |
|
---|
| 2417 | while (1)
|
---|
[840] | 2418 | {
|
---|
[850] | 2419 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2420 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2421 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2422 |
|
---|
| 2423 | if (boxesIn.eof())
|
---|
| 2424 | break;
|
---|
| 2425 |
|
---|
| 2426 |
|
---|
| 2427 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2428 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2429 |
|
---|
| 2430 | // HACK: set bounding box to new box
|
---|
| 2431 | //mi->mBox = box;
|
---|
| 2432 | //boxes.push_back(mi);
|
---|
| 2433 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2434 | }
|
---|
| 2435 |
|
---|
[850] | 2436 | boxesIn.close();
|
---|
[840] | 2437 | }
|
---|
| 2438 |
|
---|
| 2439 | return true;
|
---|
[850] | 2440 | }
|
---|
[840] | 2441 |
|
---|
[931] | 2442 |
|
---|
| 2443 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2444 | {
|
---|
| 2445 | return mFilterWidth;
|
---|
| 2446 | }
|
---|
| 2447 |
|
---|
| 2448 |
|
---|
| 2449 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2450 | {
|
---|
| 2451 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2452 | }
|
---|
| 2453 |
|
---|
| 2454 |
|
---|
[1168] | 2455 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
[1709] | 2456 | const float pvsCost,
|
---|
[1168] | 2457 | const int entriesInPvs) const
|
---|
[1002] | 2458 | {
|
---|
[1709] | 2459 | vc->mPvsCost = pvsCost;
|
---|
[1160] | 2460 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2461 |
|
---|
[1002] | 2462 | vc->mPvsSizeValid = true;
|
---|
| 2463 | }
|
---|
| 2464 |
|
---|
| 2465 |
|
---|
[1021] | 2466 | void
|
---|
| 2467 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2468 | KdTree *kdTree,
|
---|
| 2469 | const float viewSpaceFilterSize,
|
---|
| 2470 | const float spatialFilterSize,
|
---|
| 2471 | ObjectPvs &pvs
|
---|
| 2472 | )
|
---|
| 2473 | {
|
---|
| 2474 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2475 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2476 | // in the pvs
|
---|
| 2477 |
|
---|
| 2478 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2479 | // and compute the pvs union
|
---|
| 2480 |
|
---|
| 2481 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2482 | // Vector3 center = m->mBox.Center();
|
---|
[1679] | 2483 |
|
---|
| 2484 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2485 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2486 | if (!ViewCellsConstructed())
|
---|
| 2487 | return;
|
---|
| 2488 |
|
---|
[1679] | 2489 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
[1021] | 2490 |
|
---|
[1679] | 2491 | const bool usePrVS = false;
|
---|
[1021] | 2492 |
|
---|
[1679] | 2493 | if (!usePrVS) {
|
---|
| 2494 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2495 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2496 |
|
---|
[1679] | 2497 | ViewCellContainer viewCells;
|
---|
| 2498 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2499 |
|
---|
| 2500 | // cout<<"box="<<box<<endl;
|
---|
| 2501 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2502 |
|
---|
[1740] | 2503 | for (; it != it_end; ++ it)
|
---|
| 2504 | {
|
---|
| 2505 | ObjectPvs interPvs;
|
---|
[1679] | 2506 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
[1740] | 2507 | ObjectPvs::Merge(interPvs, pvs, (*it)->GetPvs());
|
---|
| 2508 |
|
---|
| 2509 | pvs = interPvs;
|
---|
[1679] | 2510 | }
|
---|
[1740] | 2511 | } else
|
---|
| 2512 | {
|
---|
[1679] | 2513 | PrVs prvs;
|
---|
| 2514 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2515 |
|
---|
| 2516 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2517 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2518 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2519 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2520 | }
|
---|
[1740] | 2521 | }
|
---|
| 2522 | else
|
---|
| 2523 | {
|
---|
[1679] | 2524 | pvs = viewCell->GetPvs();
|
---|
[1740] | 2525 | }
|
---|
[1679] | 2526 |
|
---|
| 2527 | if (spatialFilterSize >=0.0f)
|
---|
| 2528 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2529 |
|
---|
[1021] | 2530 | }
|
---|
| 2531 |
|
---|
| 2532 |
|
---|
| 2533 |
|
---|
| 2534 | void
|
---|
| 2535 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2536 | const float relViewSpaceFilterSize,
|
---|
| 2537 | const float relSpatialFilterSize
|
---|
| 2538 | )
|
---|
| 2539 | {
|
---|
| 2540 |
|
---|
| 2541 | if (!ViewCellsConstructed())
|
---|
| 2542 | return;
|
---|
| 2543 |
|
---|
[1679] | 2544 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1021] | 2545 |
|
---|
[1679] | 2546 | ObjectPvs *newPvs;
|
---|
| 2547 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
[1021] | 2548 |
|
---|
[1679] | 2549 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2550 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
[1715] | 2551 |
|
---|
[1679] | 2552 | int i;
|
---|
| 2553 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2554 | ApplyFilter(*it,
|
---|
| 2555 | kdTree,
|
---|
| 2556 | viewSpaceFilterSize,
|
---|
| 2557 | spatialFilterSize,
|
---|
| 2558 | newPvs[i]
|
---|
| 2559 | );
|
---|
[1679] | 2560 | }
|
---|
[1715] | 2561 |
|
---|
[1679] | 2562 | // now replace all pvss
|
---|
| 2563 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2564 |
|
---|
| 2565 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2566 | pvs.Clear();
|
---|
| 2567 | pvs = newPvs[i];
|
---|
| 2568 | newPvs[i].Clear();
|
---|
[1679] | 2569 | }
|
---|
[1021] | 2570 |
|
---|
[1679] | 2571 | delete [] newPvs;
|
---|
| 2572 | }
|
---|
[1021] | 2573 |
|
---|
[1679] | 2574 |
|
---|
[1021] | 2575 | void
|
---|
| 2576 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2577 | KdTree *kdTree,
|
---|
| 2578 | const float spatialFilterSize,
|
---|
| 2579 | ObjectPvs &pvs
|
---|
| 2580 | )
|
---|
| 2581 | {
|
---|
[1716] | 2582 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2583 | // extended boxes of visible objects
|
---|
| 2584 | Intersectable::NewMail();
|
---|
[1742] | 2585 |
|
---|
| 2586 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 2587 |
|
---|
| 2588 | while (pit.HasMoreEntries())
|
---|
| 2589 | {
|
---|
| 2590 | ObjectPvsEntry entry = pit.Next();
|
---|
[1716] | 2591 |
|
---|
[1742] | 2592 | Intersectable *object = entry.mObject;
|
---|
[1189] | 2593 | object->Mail();
|
---|
[1742] | 2594 | }
|
---|
[1021] | 2595 |
|
---|
| 2596 | ObjectPvs nPvs;
|
---|
[1189] | 2597 | int nPvsSize = 0;
|
---|
[1742] | 2598 |
|
---|
| 2599 | ObjectPvsIterator pit2 = pvs.GetIterator();
|
---|
[1021] | 2600 |
|
---|
[1742] | 2601 | while (pit2.HasMoreEntries())
|
---|
| 2602 | {
|
---|
| 2603 | // now go through the pvs again
|
---|
| 2604 | ObjectPvsEntry entry = pit2.Next();
|
---|
| 2605 | Intersectable *object = entry.mObject;
|
---|
[1021] | 2606 |
|
---|
[1742] | 2607 | // Vector3 center = object->GetBox().Center();
|
---|
| 2608 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2609 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2610 |
|
---|
| 2611 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2612 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2613 |
|
---|
| 2614 | ObjectContainer objects;
|
---|
| 2615 |
|
---|
| 2616 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2617 | kdTree->CollectObjects(box, objects);
|
---|
| 2618 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2619 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2620 | for (; noi != objects.end(); ++ noi)
|
---|
| 2621 | {
|
---|
| 2622 | Intersectable *o = *noi;
|
---|
[1764] | 2623 |
|
---|
[1742] | 2624 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2625 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2626 | nPvsSize ++;
|
---|
| 2627 | }
|
---|
[1021] | 2628 | }
|
---|
[1740] | 2629 |
|
---|
[1764] | 2630 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
[1740] | 2631 | pvs.MergeInPlace(nPvs);
|
---|
[1021] | 2632 | }
|
---|
| 2633 |
|
---|
| 2634 |
|
---|
[1787] | 2635 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2636 | const ViewCellContainer &viewCells) const
|
---|
[1786] | 2637 | {
|
---|
[1787] | 2638 | MergeViewCellsRecursivly(pvs, viewCells, 0, (int)viewCells.size() - 1);
|
---|
[1786] | 2639 | }
|
---|
| 2640 |
|
---|
[1787] | 2641 |
|
---|
| 2642 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2643 | const ViewCellContainer &viewCells,
|
---|
| 2644 | const int leftIdx,
|
---|
| 2645 | const int rightIdx) const
|
---|
| 2646 | {
|
---|
| 2647 | if (leftIdx == rightIdx)
|
---|
| 2648 | {
|
---|
| 2649 | pvs = viewCells[leftIdx]->GetPvs();
|
---|
| 2650 | }
|
---|
| 2651 | else
|
---|
| 2652 | {
|
---|
| 2653 | const int midSplit = (leftIdx + rightIdx) / 2;
|
---|
| 2654 |
|
---|
| 2655 | ObjectPvs leftPvs, rightPvs;
|
---|
| 2656 | MergeViewCellsRecursivly(leftPvs, viewCells, leftIdx, midSplit);
|
---|
| 2657 | MergeViewCellsRecursivly(rightPvs, viewCells, midSplit, rightIdx);
|
---|
| 2658 |
|
---|
| 2659 | ObjectPvs::Merge(pvs, leftPvs, rightPvs);
|
---|
| 2660 | }
|
---|
| 2661 | }
|
---|
| 2662 |
|
---|
| 2663 |
|
---|
[1761] | 2664 | PvsFilterStatistics
|
---|
[1715] | 2665 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
[1877] | 2666 | const bool useViewSpaceFilter,
|
---|
| 2667 | const float filterSize,
|
---|
| 2668 | ObjectPvs &pvs,
|
---|
| 2669 | vector<AxisAlignedBox3> *filteredBoxes
|
---|
| 2670 | )
|
---|
[1715] | 2671 | {
|
---|
[1877] | 2672 | //cout<<"y";
|
---|
[1761] | 2673 | PvsFilterStatistics stats;
|
---|
| 2674 |
|
---|
[1737] | 2675 | AxisAlignedBox3 vbox = GetViewCellBox(viewCell);
|
---|
| 2676 | Vector3 center = vbox.Center();
|
---|
[1786] | 2677 | // copy the PVS
|
---|
[1757] | 2678 | Intersectable::NewMail();
|
---|
[1877] | 2679 | ObjectPvs basePvs = viewCell->GetPvs();
|
---|
[1757] | 2680 | ObjectPvsIterator pit = basePvs.GetIterator();
|
---|
[1742] | 2681 |
|
---|
[1877] | 2682 | pvs.Reserve(viewCell->GetFilteredPvsSize());
|
---|
| 2683 |
|
---|
[1902] | 2684 | if (!mUseKdPvs)
|
---|
| 2685 | {
|
---|
| 2686 | // first mark all objects from this pvs
|
---|
| 2687 | while (pit.HasMoreEntries())
|
---|
| 2688 | {
|
---|
| 2689 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2690 | Intersectable *object = entry.mObject;
|
---|
| 2691 | object->Mail();
|
---|
| 2692 | }
|
---|
[1716] | 2693 | }
|
---|
[1877] | 2694 |
|
---|
[1716] | 2695 | int pvsSize = 0;
|
---|
| 2696 | int nPvsSize = 0;
|
---|
[1761] | 2697 | float samples = (float)basePvs.GetSamples();
|
---|
| 2698 |
|
---|
[1787] | 2699 | Debug<<"f #s="<<samples<<" pvs size = "<<basePvs.GetSize();
|
---|
[1737] | 2700 | // cout<<"Filter size = "<<filterSize<<endl;
|
---|
| 2701 | // cout<<"vbox = "<<vbox<<endl;
|
---|
| 2702 | // cout<<"center = "<<center<<endl;
|
---|
[1716] | 2703 |
|
---|
[1737] | 2704 |
|
---|
[1757] | 2705 | // Minimal number of local samples to take into account
|
---|
| 2706 | // the local sampling density.
|
---|
| 2707 | // The size of the filter is a minimum of the conservative
|
---|
| 2708 | // local sampling density estimate (#rays intersecting teh viewcell and
|
---|
| 2709 | // the object)
|
---|
| 2710 | // and gobal estimate for the view cell
|
---|
| 2711 | // (total #rays intersecting the viewcell)
|
---|
[1824] | 2712 | int minLocalSamples = 2;
|
---|
| 2713 |
|
---|
[1737] | 2714 | float viewCellRadius = 0.5f*Magnitude(vbox.Diagonal());
|
---|
| 2715 |
|
---|
| 2716 | // now compute the filter box around the current viewCell
|
---|
[1757] | 2717 |
|
---|
[1737] | 2718 | if (useViewSpaceFilter) {
|
---|
[1877] | 2719 | // float radius = Max(viewCellRadius/100.0f, avgRadius - viewCellRadius);
|
---|
| 2720 | float radius = viewCellRadius/100.0f;
|
---|
| 2721 | vbox.Enlarge(radius);
|
---|
| 2722 | cout<<"vbox = "<<vbox<<endl;
|
---|
| 2723 | ViewCellContainer viewCells;
|
---|
| 2724 | ComputeBoxIntersections(vbox, viewCells);
|
---|
[1737] | 2725 |
|
---|
[1877] | 2726 | ViewCellContainer::const_iterator it = viewCells.begin(),
|
---|
| 2727 | it_end = viewCells.end();
|
---|
| 2728 | int i = 0;
|
---|
| 2729 | for (i=0; it != it_end; ++ it, ++ i)
|
---|
| 2730 | if ((*it) != viewCell) {
|
---|
| 2731 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2732 | basePvs.MergeInPlace((*it)->GetPvs());
|
---|
| 2733 | }
|
---|
| 2734 |
|
---|
| 2735 | // update samples and globalC
|
---|
| 2736 | samples = (float)pvs.GetSamples();
|
---|
| 2737 | // cout<<"neighboring viewcells = "<<i-1<<endl;
|
---|
| 2738 | // cout<<"Samples' = "<<samples<<endl;
|
---|
| 2739 | }
|
---|
| 2740 |
|
---|
[1824] | 2741 | // Minimal number of samples so that filtering takes place
|
---|
| 2742 | #define MIN_SAMPLES 50
|
---|
[1877] | 2743 |
|
---|
[1761] | 2744 | if (samples > MIN_SAMPLES) {
|
---|
[1877] | 2745 | float globalC = 2.0f*filterSize/sqrt(samples);
|
---|
| 2746 |
|
---|
| 2747 | pit = basePvs.GetIterator();
|
---|
| 2748 |
|
---|
| 2749 | ObjectContainer objects;
|
---|
| 2750 |
|
---|
| 2751 | while (pit.HasMoreEntries()) {
|
---|
| 2752 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2753 |
|
---|
| 2754 | Intersectable *object = entry.mObject;
|
---|
| 2755 | // compute filter size based on the distance and the numebr of samples
|
---|
| 2756 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2757 |
|
---|
| 2758 | float distance = Distance(center, box.Center());
|
---|
| 2759 | float globalRadius = distance*globalC;
|
---|
| 2760 |
|
---|
| 2761 | int objectSamples = (int)entry.mData.mSumPdf;
|
---|
| 2762 | float localRadius = MAX_FLOAT;
|
---|
| 2763 |
|
---|
| 2764 | localRadius = filterSize*0.5f*Magnitude(box.Diagonal())/
|
---|
| 2765 | sqrt((float)objectSamples);
|
---|
| 2766 |
|
---|
| 2767 | // cout<<"lr="<<localRadius<<" gr="<<globalRadius<<endl;
|
---|
| 2768 |
|
---|
| 2769 | // now compute the filter size
|
---|
| 2770 | float radius;
|
---|
| 2771 |
|
---|
[1824] | 2772 | #if 0
|
---|
[1877] | 2773 | if (objectSamples <= 1) {
|
---|
| 2774 | if (localRadius > globalRadius) {
|
---|
| 2775 | radius = 0.5flRadius;
|
---|
| 2776 | stats.mLocalFilterCount++;
|
---|
| 2777 | } else {
|
---|
| 2778 | radius = globalRadius;
|
---|
| 2779 | stats.mGlobalFilterCount++;
|
---|
| 2780 | }
|
---|
| 2781 | } else {
|
---|
| 2782 | radius = localRadius;
|
---|
| 2783 | stats.mLocalFilterCount++;
|
---|
| 2784 | }
|
---|
[1824] | 2785 | #else
|
---|
[1877] | 2786 | radius = 0.5f*globalRadius + 0.5f*localRadius;
|
---|
| 2787 | stats.mLocalFilterCount++;
|
---|
| 2788 | stats.mGlobalFilterCount++;
|
---|
[1824] | 2789 | #endif
|
---|
[1877] | 2790 |
|
---|
| 2791 | stats.mAvgFilterRadius += radius;
|
---|
| 2792 |
|
---|
| 2793 | // cout<<"box = "<<box<<endl;
|
---|
| 2794 | // cout<<"distance = "<<distance<<endl;
|
---|
| 2795 | // cout<<"radiues = "<<radius<<endl;
|
---|
| 2796 |
|
---|
| 2797 | box.Enlarge(Vector3(radius));
|
---|
| 2798 |
|
---|
| 2799 | if (filteredBoxes)
|
---|
| 2800 | filteredBoxes->push_back(box);
|
---|
| 2801 |
|
---|
| 2802 | objects.clear();
|
---|
| 2803 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2804 | CollectObjects(box, objects);
|
---|
| 2805 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2806 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2807 | for (; noi != objects.end(); ++ noi) {
|
---|
| 2808 | Intersectable *o = *noi;
|
---|
| 2809 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2810 | pvs.AddSampleDirty(o, Limits::Small);
|
---|
| 2811 | }
|
---|
| 2812 | }
|
---|
| 2813 | stats.mAvgFilterRadius /= (stats.mLocalFilterCount + stats.mGlobalFilterCount);
|
---|
[1757] | 2814 | }
|
---|
[1761] | 2815 |
|
---|
[1771] | 2816 | Debug<<" nPvs size = "<<pvs.GetSize()<<endl;
|
---|
[1877] | 2817 |
|
---|
[1902] | 2818 | if (!mUseKdPvs)
|
---|
| 2819 | {
|
---|
| 2820 | // copy the base pvs to the new pvs
|
---|
| 2821 | pit = basePvs.GetIterator();
|
---|
| 2822 | while (pit.HasMoreEntries())
|
---|
| 2823 | {
|
---|
| 2824 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2825 | pvs.AddSampleDirty(entry.mObject, entry.mData.mSumPdf);
|
---|
| 2826 | }
|
---|
[1716] | 2827 | }
|
---|
[1877] | 2828 |
|
---|
| 2829 | pvs.SimpleSort();
|
---|
[1771] | 2830 | viewCell->SetFilteredPvsSize(pvs.GetSize());
|
---|
[1740] | 2831 |
|
---|
[1737] | 2832 | Intersectable::NewMail();
|
---|
[1761] | 2833 | return stats;
|
---|
[1715] | 2834 | }
|
---|
[1786] | 2835 |
|
---|
| 2836 |
|
---|
| 2837 |
|
---|
[1571] | 2838 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2839 | ViewCell *vc,
|
---|
| 2840 | bool colorCode) const
|
---|
[1021] | 2841 | {
|
---|
| 2842 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2843 |
|
---|
| 2844 | float importance = 0;
|
---|
| 2845 | static Material m;
|
---|
[1760] | 2846 | //cout << "color code: " << colorCode << endl;
|
---|
[1021] | 2847 | switch (mColorCode)
|
---|
| 2848 | {
|
---|
| 2849 | case 0: // Random
|
---|
| 2850 | {
|
---|
| 2851 | if (vcValid)
|
---|
| 2852 | {
|
---|
[1765] | 2853 | m.mDiffuseColor.r = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 2854 | m.mDiffuseColor.g = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 2855 | m.mDiffuseColor.b = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
[1021] | 2856 | }
|
---|
| 2857 | else
|
---|
| 2858 | {
|
---|
| 2859 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2860 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2861 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2862 | }
|
---|
| 2863 |
|
---|
| 2864 | exporter->SetForcedMaterial(m);
|
---|
| 2865 | return;
|
---|
| 2866 | }
|
---|
| 2867 |
|
---|
| 2868 | case 1: // pvs
|
---|
[1763] | 2869 | {
|
---|
[1021] | 2870 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2871 | {
|
---|
[1763] | 2872 | importance = (float)mViewCellsTree->GetPvsCost(vc) /
|
---|
| 2873 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[1121] | 2874 | }
|
---|
[1021] | 2875 | }
|
---|
| 2876 | break;
|
---|
| 2877 | case 2: // merges
|
---|
| 2878 | {
|
---|
| 2879 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2880 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2881 | }
|
---|
| 2882 | break;
|
---|
| 2883 | #if 0
|
---|
| 2884 | case 3: // merge tree differene
|
---|
| 2885 | {
|
---|
| 2886 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2887 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2888 |
|
---|
| 2889 | }
|
---|
| 2890 | break;
|
---|
| 2891 | #endif
|
---|
| 2892 | default:
|
---|
| 2893 | break;
|
---|
| 2894 | }
|
---|
| 2895 |
|
---|
| 2896 | // special color code for invalid view cells
|
---|
| 2897 | m.mDiffuseColor.r = importance;
|
---|
[1765] | 2898 | m.mDiffuseColor.g = vcValid ? 0.0f : 1.0f;
|
---|
| 2899 | m.mDiffuseColor.b = 1.0f - importance;
|
---|
[1021] | 2900 |
|
---|
| 2901 | //Debug << "importance: " << importance << endl;
|
---|
| 2902 | exporter->SetForcedMaterial(m);
|
---|
| 2903 | }
|
---|
| 2904 |
|
---|
| 2905 |
|
---|
[1022] | 2906 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2907 | vector<MergeCandidate> &candidates)
|
---|
| 2908 | {
|
---|
| 2909 | // implemented in subclasses
|
---|
| 2910 | }
|
---|
| 2911 |
|
---|
[1047] | 2912 |
|
---|
[1718] | 2913 | void ViewCellsManager::UpdatePvsForEvaluation()
|
---|
[1608] | 2914 | {
|
---|
[1718] | 2915 | ObjectPvs objPvs;
|
---|
| 2916 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
[1608] | 2917 | }
|
---|
| 2918 |
|
---|
[1168] | 2919 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2920 | {
|
---|
| 2921 | // terminate traversal
|
---|
| 2922 | if (root->IsLeaf())
|
---|
| 2923 | {
|
---|
[1709] | 2924 | //cout << "updating leaf" << endl;
|
---|
[1168] | 2925 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2926 | pvs = root->GetPvs();
|
---|
[1707] | 2927 | UpdateScalarPvsSize(root, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2928 | return;
|
---|
| 2929 | }
|
---|
[1709] | 2930 |
|
---|
[1586] | 2931 | ////////////////
|
---|
| 2932 | //-- interior node => propagate pvs up the tree
|
---|
| 2933 |
|
---|
[1168] | 2934 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 2935 |
|
---|
| 2936 | // reset interior pvs
|
---|
[1168] | 2937 | interior->GetPvs().Clear();
|
---|
[1606] | 2938 | // reset recursive pvs
|
---|
[1168] | 2939 | pvs.Clear();
|
---|
[1695] | 2940 |
|
---|
| 2941 | // pvss of child nodes
|
---|
[1168] | 2942 | vector<ObjectPvs> pvsList;
|
---|
[1709] | 2943 | pvsList.resize((int)interior->mChildren.size());
|
---|
[1168] | 2944 |
|
---|
| 2945 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[1709] | 2946 |
|
---|
[1695] | 2947 | int i = 0;
|
---|
[1709] | 2948 |
|
---|
[1695] | 2949 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[1168] | 2950 | {
|
---|
[1586] | 2951 | //////////////////
|
---|
[1168] | 2952 | //-- recursivly compute child pvss
|
---|
[1695] | 2953 | UpdatePvsForEvaluation(*vit, pvsList[i]/*objPvs*/);
|
---|
[1168] | 2954 | }
|
---|
| 2955 |
|
---|
| 2956 | #if 1
|
---|
| 2957 | Intersectable::NewMail();
|
---|
| 2958 |
|
---|
| 2959 | //-- faster way of computing pvs:
|
---|
[1586] | 2960 | //-- construct merged pvs by adding
|
---|
| 2961 | //-- and only those of the next pvs which were not mailed.
|
---|
| 2962 | //-- note: sumpdf is not correct!!
|
---|
| 2963 |
|
---|
[1168] | 2964 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2965 |
|
---|
| 2966 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2967 | {
|
---|
[1742] | 2968 | ObjectPvsIterator pit = (*oit).GetIterator();
|
---|
| 2969 |
|
---|
| 2970 | // first mark all object from this pvs
|
---|
| 2971 | while (pit.HasMoreEntries())
|
---|
| 2972 | {
|
---|
| 2973 | ObjectPvsEntry entry = pit.Next();
|
---|
[1168] | 2974 |
|
---|
[1742] | 2975 | Intersectable *intersect = entry.mObject;
|
---|
| 2976 |
|
---|
[1168] | 2977 | if (!intersect->Mailed())
|
---|
[1764] | 2978 | {
|
---|
[1742] | 2979 | pvs.AddSample(intersect, entry.mData.mSumPdf);
|
---|
[1168] | 2980 | intersect->Mail();
|
---|
| 2981 | }
|
---|
| 2982 | }
|
---|
| 2983 | }
|
---|
| 2984 |
|
---|
| 2985 | // store pvs in this node
|
---|
| 2986 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2987 | {
|
---|
| 2988 | interior->SetPvs(pvs);
|
---|
| 2989 | }
|
---|
| 2990 |
|
---|
| 2991 | // set new pvs size
|
---|
[1707] | 2992 | UpdateScalarPvsSize(interior, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2993 |
|
---|
[1586] | 2994 | #else
|
---|
| 2995 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2996 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2997 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2998 | #endif
|
---|
| 2999 | }
|
---|
| 3000 |
|
---|
[1174] | 3001 |
|
---|
| 3002 |
|
---|
[1145] | 3003 | /*******************************************************************/
|
---|
| 3004 | /* BspViewCellsManager implementation */
|
---|
| 3005 | /*******************************************************************/
|
---|
[440] | 3006 |
|
---|
[482] | 3007 |
|
---|
[1264] | 3008 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 3009 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 3010 | {
|
---|
[1004] | 3011 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[1640] | 3012 |
|
---|
[587] | 3013 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 3014 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 3015 | }
|
---|
| 3016 |
|
---|
[462] | 3017 |
|
---|
[440] | 3018 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3019 | {
|
---|
| 3020 | return mBspTree->GetRoot() != NULL;
|
---|
| 3021 | }
|
---|
| 3022 |
|
---|
[480] | 3023 |
|
---|
[440] | 3024 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3025 | {
|
---|
| 3026 | return new BspViewCell(mesh);
|
---|
| 3027 | }
|
---|
| 3028 |
|
---|
[480] | 3029 |
|
---|
[574] | 3030 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 3031 | const VssRayContainer &rays)
|
---|
[440] | 3032 | {
|
---|
[1545] | 3033 | // if view cells were already constructed, we can finish
|
---|
[440] | 3034 | if (ViewCellsConstructed())
|
---|
| 3035 | return 0;
|
---|
| 3036 |
|
---|
| 3037 | int sampleContributions = 0;
|
---|
[503] | 3038 |
|
---|
[469] | 3039 | // construct view cells using the collected samples
|
---|
| 3040 | RayContainer constructionRays;
|
---|
| 3041 | VssRayContainer savedRays;
|
---|
[440] | 3042 |
|
---|
[1563] | 3043 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 3044 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 3045 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 3046 |
|
---|
[473] | 3047 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 3048 |
|
---|
[469] | 3049 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 3050 | {
|
---|
[473] | 3051 | if (Random(1.0f) < prop)
|
---|
[469] | 3052 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 3053 | else
|
---|
| 3054 | savedRays.push_back(*it);
|
---|
| 3055 | }
|
---|
[440] | 3056 |
|
---|
[1545] | 3057 | if (!mUsePredefinedViewCells)
|
---|
[503] | 3058 | {
|
---|
| 3059 | // no view cells loaded
|
---|
[587] | 3060 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 3061 | // collect final view cells
|
---|
| 3062 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 3063 | }
|
---|
[469] | 3064 | else
|
---|
[1551] | 3065 | {
|
---|
[1545] | 3066 | // use predefined view cells geometry =>
|
---|
| 3067 | // contruct bsp hierarchy over them
|
---|
[469] | 3068 | mBspTree->Construct(mViewCells);
|
---|
| 3069 | }
|
---|
| 3070 |
|
---|
| 3071 | // destroy rays created only for construction
|
---|
| 3072 | CLEAR_CONTAINER(constructionRays);
|
---|
| 3073 |
|
---|
[440] | 3074 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 3075 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 3076 |
|
---|
[469] | 3077 | // recast rest of the rays
|
---|
[649] | 3078 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3079 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 3080 |
|
---|
[719] | 3081 | // real meshes are contructed at this stage
|
---|
| 3082 | if (0)
|
---|
| 3083 | {
|
---|
| 3084 | cout << "finalizing view cells ... ";
|
---|
| 3085 | FinalizeViewCells(true);
|
---|
| 3086 | cout << "finished" << endl;
|
---|
| 3087 | }
|
---|
| 3088 |
|
---|
[440] | 3089 | return sampleContributions;
|
---|
| 3090 | }
|
---|
| 3091 |
|
---|
[503] | 3092 |
|
---|
[480] | 3093 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 3094 | {
|
---|
[587] | 3095 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 3096 | { // view cells tree constructed
|
---|
[587] | 3097 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 3098 | }
|
---|
| 3099 | else
|
---|
[1545] | 3100 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 3101 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 3102 | }
|
---|
[480] | 3103 | }
|
---|
[468] | 3104 |
|
---|
[503] | 3105 |
|
---|
[471] | 3106 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 3107 | {
|
---|
[591] | 3108 | if (1)
|
---|
| 3109 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 3110 | else
|
---|
[1545] | 3111 | // compute view cell area as subsititute for probability
|
---|
[591] | 3112 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 3113 | }
|
---|
[440] | 3114 |
|
---|
[503] | 3115 |
|
---|
[440] | 3116 |
|
---|
[468] | 3117 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3118 | const Vector3 &termination,
|
---|
| 3119 | ViewCellContainer &viewcells)
|
---|
[440] | 3120 | {
|
---|
[468] | 3121 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 3122 | }
|
---|
| 3123 |
|
---|
| 3124 |
|
---|
[1551] | 3125 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 3126 | {
|
---|
| 3127 | // save color code
|
---|
| 3128 | const int savedColorCode = mColorCode;
|
---|
| 3129 |
|
---|
[1763] | 3130 | Exporter *exporter;
|
---|
| 3131 |
|
---|
| 3132 | #if 0
|
---|
[1545] | 3133 | // export merged view cells
|
---|
| 3134 | mColorCode = 0; // use random colors
|
---|
| 3135 |
|
---|
[1763] | 3136 | exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[1545] | 3137 |
|
---|
| 3138 | cout << "exporting view cells after merge ... ";
|
---|
| 3139 |
|
---|
| 3140 | if (exporter)
|
---|
| 3141 | {
|
---|
| 3142 | if (mExportGeometry)
|
---|
| 3143 | {
|
---|
| 3144 | exporter->ExportGeometry(objects);
|
---|
| 3145 | }
|
---|
| 3146 |
|
---|
| 3147 | exporter->SetFilled();
|
---|
[1760] | 3148 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3149 |
|
---|
| 3150 | delete exporter;
|
---|
| 3151 | }
|
---|
| 3152 | cout << "finished" << endl;
|
---|
[1763] | 3153 | #endif
|
---|
[1545] | 3154 |
|
---|
| 3155 | // export merged view cells using pvs color coding
|
---|
| 3156 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 3157 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3158 |
|
---|
| 3159 | if (exporter)
|
---|
| 3160 | {
|
---|
| 3161 | if (mExportGeometry)
|
---|
| 3162 | {
|
---|
| 3163 | exporter->ExportGeometry(objects);
|
---|
| 3164 | }
|
---|
| 3165 |
|
---|
| 3166 | exporter->SetFilled();
|
---|
[1760] | 3167 | mColorCode = 1;
|
---|
[1763] | 3168 |
|
---|
[1760] | 3169 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3170 |
|
---|
| 3171 | delete exporter;
|
---|
| 3172 | }
|
---|
| 3173 | cout << "finished" << endl;
|
---|
| 3174 |
|
---|
| 3175 | mColorCode = savedColorCode;
|
---|
| 3176 | }
|
---|
| 3177 |
|
---|
| 3178 |
|
---|
[503] | 3179 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 3180 | const VssRayContainer &rays)
|
---|
| 3181 | {
|
---|
[469] | 3182 | if (!ViewCellsConstructed())
|
---|
[441] | 3183 | {
|
---|
| 3184 | Debug << "view cells not constructed" << endl;
|
---|
| 3185 | return 0;
|
---|
| 3186 | }
|
---|
[590] | 3187 |
|
---|
[1414] | 3188 | // view cells already finished before post processing step,
|
---|
| 3189 | // i.e., because they were loaded from disc
|
---|
[590] | 3190 | if (mViewCellsFinished)
|
---|
| 3191 | {
|
---|
| 3192 | FinalizeViewCells(true);
|
---|
| 3193 | EvaluateViewCellsStats();
|
---|
| 3194 |
|
---|
| 3195 | return 0;
|
---|
| 3196 | }
|
---|
| 3197 |
|
---|
[1444] | 3198 | //////////////////
|
---|
[1414] | 3199 | //-- merge leaves of the view cell hierarchy
|
---|
| 3200 |
|
---|
[649] | 3201 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 3202 | long startTime = GetTime();
|
---|
| 3203 |
|
---|
| 3204 | VssRayContainer postProcessRays;
|
---|
| 3205 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3206 |
|
---|
[592] | 3207 | if (mMergeViewCells)
|
---|
[591] | 3208 | {
|
---|
[660] | 3209 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 3210 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 3211 | }
|
---|
| 3212 | else
|
---|
| 3213 | {
|
---|
[660] | 3214 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 3215 | ViewCell *root;
|
---|
| 3216 | // the spatial merge tree is difficult to build for
|
---|
| 3217 | // this type of construction, as view cells cover several
|
---|
| 3218 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 3219 | if (mUsePredefinedViewCells)
|
---|
| 3220 | {
|
---|
| 3221 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 3222 | }
|
---|
| 3223 | else
|
---|
| 3224 | {
|
---|
| 3225 | // create spatial merge hierarchy
|
---|
| 3226 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 3227 | }
|
---|
| 3228 |
|
---|
[752] | 3229 | mViewCellsTree->SetRoot(root);
|
---|
| 3230 |
|
---|
[1415] | 3231 | // recompute pvs in the whole hierarchy
|
---|
[752] | 3232 | ObjectPvs pvs;
|
---|
| 3233 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 3234 | }
|
---|
[440] | 3235 |
|
---|
[1415] | 3236 | cout << "finished" << endl;
|
---|
| 3237 | cout << "merged view cells in "
|
---|
| 3238 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 3239 |
|
---|
| 3240 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3241 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 3242 |
|
---|
| 3243 |
|
---|
[1418] | 3244 | ////////////////////////
|
---|
[1444] | 3245 | //-- visualization and statistics after merge
|
---|
[1415] | 3246 |
|
---|
[666] | 3247 | if (1)
|
---|
| 3248 | {
|
---|
| 3249 | char mstats[100];
|
---|
[1004] | 3250 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3251 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3252 | }
|
---|
[650] | 3253 |
|
---|
[1551] | 3254 | // recompute view cells and stats
|
---|
| 3255 | ResetViewCells();
|
---|
[660] | 3256 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 3257 |
|
---|
[1551] | 3258 | // visualization of the view cells
|
---|
[1763] | 3259 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 3260 |
|
---|
[719] | 3261 | // compute final meshes and volume / area
|
---|
| 3262 | if (1) FinalizeViewCells(true);
|
---|
[840] | 3263 |
|
---|
[650] | 3264 | return 0;
|
---|
[440] | 3265 | }
|
---|
| 3266 |
|
---|
[477] | 3267 |
|
---|
| 3268 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 3269 | {
|
---|
| 3270 | }
|
---|
| 3271 |
|
---|
| 3272 |
|
---|
[440] | 3273 | int BspViewCellsManager::GetType() const
|
---|
| 3274 | {
|
---|
| 3275 | return BSP;
|
---|
| 3276 | }
|
---|
| 3277 |
|
---|
| 3278 |
|
---|
| 3279 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3280 | const VssRayContainer &sampleRays)
|
---|
[440] | 3281 | {
|
---|
[469] | 3282 | if (!ViewCellsConstructed())
|
---|
| 3283 | return;
|
---|
[574] | 3284 |
|
---|
[1563] | 3285 | const int savedColorCode = mColorCode;
|
---|
[1551] | 3286 |
|
---|
[600] | 3287 | if (1) // export final view cells
|
---|
[440] | 3288 | {
|
---|
[1020] | 3289 | mColorCode = 1; // hack color code
|
---|
[1415] | 3290 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3291 |
|
---|
| 3292 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 3293 |
|
---|
[469] | 3294 | if (exporter)
|
---|
[440] | 3295 | {
|
---|
[600] | 3296 | if (mExportGeometry)
|
---|
[1416] | 3297 | {
|
---|
[600] | 3298 | exporter->ExportGeometry(objects);
|
---|
[1416] | 3299 | }
|
---|
[590] | 3300 |
|
---|
[1760] | 3301 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[469] | 3302 | delete exporter;
|
---|
[440] | 3303 | }
|
---|
[469] | 3304 | cout << "finished" << endl;
|
---|
[503] | 3305 | }
|
---|
[1551] | 3306 |
|
---|
[1545] | 3307 | // reset color code
|
---|
[600] | 3308 | mColorCode = savedColorCode;
|
---|
| 3309 |
|
---|
[1416] | 3310 |
|
---|
| 3311 | //////////////////
|
---|
[469] | 3312 | //-- visualization of the BSP splits
|
---|
[1416] | 3313 |
|
---|
[469] | 3314 | bool exportSplits = false;
|
---|
[1004] | 3315 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3316 |
|
---|
[469] | 3317 | if (exportSplits)
|
---|
[440] | 3318 | {
|
---|
[469] | 3319 | cout << "exporting splits ... ";
|
---|
[477] | 3320 | ExportSplits(objects);
|
---|
[469] | 3321 | cout << "finished" << endl;
|
---|
[440] | 3322 | }
|
---|
[477] | 3323 |
|
---|
[1570] | 3324 | int leafOut;
|
---|
| 3325 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 3326 | const int raysOut = 100;
|
---|
| 3327 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 3328 | }
|
---|
| 3329 |
|
---|
| 3330 |
|
---|
[477] | 3331 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 3332 | {
|
---|
| 3333 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3334 |
|
---|
[503] | 3335 | if (exporter)
|
---|
| 3336 | {
|
---|
[598] | 3337 | //exporter->SetFilled();
|
---|
| 3338 | if (mExportGeometry)
|
---|
[1545] | 3339 | {
|
---|
[598] | 3340 | exporter->ExportGeometry(objects);
|
---|
[1545] | 3341 | }
|
---|
[598] | 3342 |
|
---|
[503] | 3343 | Material m;
|
---|
[440] | 3344 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3345 | exporter->SetForcedMaterial(m);
|
---|
| 3346 | exporter->SetWireframe();
|
---|
[503] | 3347 |
|
---|
[440] | 3348 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 3349 |
|
---|
[1545] | 3350 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 3351 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3352 | exporter->SetForcedMaterial(m);
|
---|
[482] | 3353 | //exporter->ResetForcedMaterial();
|
---|
| 3354 |
|
---|
[440] | 3355 | delete exporter;
|
---|
| 3356 | }
|
---|
| 3357 | }
|
---|
| 3358 |
|
---|
[477] | 3359 |
|
---|
[1570] | 3360 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3361 | const int maxViewCells,
|
---|
| 3362 | const bool sortViewCells,
|
---|
| 3363 | const bool exportPvs,
|
---|
| 3364 | const bool exportRays,
|
---|
| 3365 | const int maxRays,
|
---|
| 3366 | const string prefix,
|
---|
| 3367 | VssRayContainer *visRays)
|
---|
[440] | 3368 | {
|
---|
[1570] | 3369 | if (sortViewCells)
|
---|
| 3370 | { // sort view cells to visualize the largest view cells
|
---|
[1789] | 3371 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1570] | 3372 | }
|
---|
[440] | 3373 |
|
---|
[1545] | 3374 | //////////
|
---|
[1570] | 3375 | //-- some view cells for output
|
---|
[503] | 3376 |
|
---|
[1570] | 3377 | ViewCell::NewMail();
|
---|
| 3378 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 3379 |
|
---|
| 3380 | for (int i = 0; i < limit; ++ i)
|
---|
| 3381 | {
|
---|
| 3382 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 3383 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 3384 |
|
---|
[1570] | 3385 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 3386 | continue;
|
---|
[587] | 3387 |
|
---|
[1570] | 3388 | vc->Mail();
|
---|
[503] | 3389 |
|
---|
[1570] | 3390 | ObjectPvs pvs;
|
---|
| 3391 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 3392 |
|
---|
[1571] | 3393 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 3394 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3395 |
|
---|
[1709] | 3396 | cout << "view cell " << idx << ": pvs cost=" << (int)mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[582] | 3397 |
|
---|
[1570] | 3398 | if (exportRays)
|
---|
| 3399 | {
|
---|
| 3400 | ////////////
|
---|
| 3401 | //-- export rays piercing this view cell
|
---|
[469] | 3402 |
|
---|
[1571] | 3403 | // use rays stored with the view cells
|
---|
| 3404 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 3405 | VssRayContainer collectRays;
|
---|
| 3406 |
|
---|
| 3407 | // collect initial view cells
|
---|
| 3408 | ViewCellContainer leaves;
|
---|
| 3409 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3410 |
|
---|
| 3411 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3412 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 3413 | {
|
---|
[1571] | 3414 | // prepare some rays for output
|
---|
[1696] | 3415 | VssRayContainer::const_iterator rit, rit_end = (*vit)->GetOrCreateRays()->end();
|
---|
| 3416 | for (rit = (*vit)->GetOrCreateRays()->begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 3417 | {
|
---|
| 3418 | collectRays.push_back(*rit);
|
---|
| 3419 | }
|
---|
| 3420 | }
|
---|
| 3421 |
|
---|
| 3422 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3423 |
|
---|
[1570] | 3424 | // prepare some rays for output
|
---|
| 3425 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3426 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3427 | {
|
---|
[1570] | 3428 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3429 | if (p < raysOut)
|
---|
[587] | 3430 | {
|
---|
[1571] | 3431 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3432 | {
|
---|
[1571] | 3433 | vcRays.push_back(*rit);
|
---|
[1580] | 3434 | }
|
---|
[1571] | 3435 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 3436 | vcRays2.push_back(*rit);
|
---|
| 3437 | else
|
---|
| 3438 | vcRays3.push_back(*rit);
|
---|
| 3439 |
|
---|
[587] | 3440 | }
|
---|
[477] | 3441 | }
|
---|
[1571] | 3442 |
|
---|
| 3443 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3444 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3445 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3446 | }
|
---|
[1570] | 3447 |
|
---|
| 3448 | ////////////////
|
---|
| 3449 | //-- export view cell geometry
|
---|
[587] | 3450 |
|
---|
[478] | 3451 | exporter->SetWireframe();
|
---|
[477] | 3452 |
|
---|
[478] | 3453 | Material m;//= RandomMaterial();
|
---|
| 3454 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3455 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3456 |
|
---|
[1416] | 3457 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3458 | exporter->SetFilled();
|
---|
[469] | 3459 |
|
---|
[1570] | 3460 | if (exportPvs)
|
---|
[478] | 3461 | {
|
---|
[1570] | 3462 | Intersectable::NewMail();
|
---|
[1742] | 3463 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 3464 |
|
---|
| 3465 | while (pit.HasMoreEntries())
|
---|
[1570] | 3466 | {
|
---|
[1742] | 3467 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3468 |
|
---|
| 3469 | // output PVS of view cell
|
---|
| 3470 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 3471 |
|
---|
| 3472 | if (!intersect->Mailed())
|
---|
| 3473 | {
|
---|
| 3474 | intersect->Mail();
|
---|
[1571] | 3475 |
|
---|
[1570] | 3476 | m = RandomMaterial();
|
---|
| 3477 | exporter->SetForcedMaterial(m);
|
---|
| 3478 | exporter->ExportIntersectable(intersect);
|
---|
| 3479 | }
|
---|
[503] | 3480 | }
|
---|
[1570] | 3481 | cout << endl;
|
---|
[477] | 3482 | }
|
---|
[1570] | 3483 |
|
---|
[478] | 3484 | DEL_PTR(exporter);
|
---|
| 3485 | cout << "finished" << endl;
|
---|
[477] | 3486 | }
|
---|
[440] | 3487 | }
|
---|
| 3488 |
|
---|
[441] | 3489 |
|
---|
[693] | 3490 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3491 | {
|
---|
| 3492 | ViewCellContainer leaves;
|
---|
| 3493 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3494 |
|
---|
| 3495 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3496 |
|
---|
| 3497 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3498 | float subdivVol = 0;
|
---|
| 3499 | float newVol = 0;
|
---|
| 3500 |
|
---|
| 3501 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3502 | {
|
---|
| 3503 | BspNodeGeometry geom;
|
---|
[1551] | 3504 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3505 |
|
---|
| 3506 | const float lVol = geom.GetVolume();
|
---|
| 3507 | newVol += lVol;
|
---|
| 3508 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3509 |
|
---|
[1551] | 3510 | const float thres = 0.9f;
|
---|
[694] | 3511 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3512 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3513 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3514 | }
|
---|
| 3515 |
|
---|
| 3516 | Debug << "exact volume: " << vol << endl;
|
---|
| 3517 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3518 | Debug << "new volume: " << newVol << endl;
|
---|
| 3519 | }
|
---|
| 3520 |
|
---|
| 3521 |
|
---|
[580] | 3522 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3523 | ViewCell *vc,
|
---|
[1416] | 3524 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3525 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3526 | ) const
|
---|
[1557] | 3527 | {
|
---|
[660] | 3528 | if (clipPlane)
|
---|
[591] | 3529 | {
|
---|
[1047] | 3530 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3531 |
|
---|
[726] | 3532 | ViewCellContainer leaves;
|
---|
| 3533 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3534 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3535 |
|
---|
[726] | 3536 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3537 | {
|
---|
[726] | 3538 | BspNodeGeometry geom;
|
---|
[681] | 3539 | BspNodeGeometry front;
|
---|
| 3540 | BspNodeGeometry back;
|
---|
[591] | 3541 |
|
---|
[1551] | 3542 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3543 |
|
---|
[1563] | 3544 | const float eps = 0.0001f;
|
---|
[1047] | 3545 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3546 |
|
---|
| 3547 | if (cf == -1)
|
---|
| 3548 | {
|
---|
| 3549 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3550 | }
|
---|
| 3551 | else if (cf == 0)
|
---|
| 3552 | {
|
---|
| 3553 | geom.SplitGeometry(front,
|
---|
| 3554 | back,
|
---|
[1047] | 3555 | plane,
|
---|
[726] | 3556 | mViewSpaceBox,
|
---|
| 3557 | eps);
|
---|
[1563] | 3558 |
|
---|
[726] | 3559 | if (back.Valid())
|
---|
[1563] | 3560 | {
|
---|
[726] | 3561 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3562 | }
|
---|
| 3563 | }
|
---|
[681] | 3564 | }
|
---|
[591] | 3565 | }
|
---|
| 3566 | else
|
---|
| 3567 | {
|
---|
[1563] | 3568 | // export mesh if available
|
---|
| 3569 | // TODO: some bug here?
|
---|
| 3570 | if (1 && vc->GetMesh())
|
---|
| 3571 | {
|
---|
| 3572 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3573 | }
|
---|
| 3574 | else
|
---|
| 3575 | {
|
---|
| 3576 | BspNodeGeometry geom;
|
---|
| 3577 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3578 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3579 | }
|
---|
[591] | 3580 | }
|
---|
[482] | 3581 | }
|
---|
| 3582 |
|
---|
[503] | 3583 |
|
---|
| 3584 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3585 | {
|
---|
[1551] | 3586 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3587 | BspNodeGeometry geom;
|
---|
| 3588 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3589 |
|
---|
[1001] | 3590 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3591 |
|
---|
[840] | 3592 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3593 | vc->SetMesh(mesh);
|
---|
[503] | 3594 | }
|
---|
| 3595 |
|
---|
[551] | 3596 |
|
---|
[587] | 3597 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3598 | const bool createMesh)
|
---|
[502] | 3599 | {
|
---|
[587] | 3600 | float area = 0;
|
---|
| 3601 | float volume = 0;
|
---|
[572] | 3602 |
|
---|
[587] | 3603 | ViewCellContainer leaves;
|
---|
| 3604 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3605 |
|
---|
| 3606 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3607 |
|
---|
[693] | 3608 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3609 | {
|
---|
| 3610 | BspNodeGeometry geom;
|
---|
| 3611 |
|
---|
[1551] | 3612 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3613 |
|
---|
[719] | 3614 | const float lVol = geom.GetVolume();
|
---|
| 3615 | const float lArea = geom.GetArea();
|
---|
[693] | 3616 |
|
---|
| 3617 | area += lArea;
|
---|
| 3618 | volume += lVol;
|
---|
[1551] | 3619 |
|
---|
| 3620 | CreateMesh(*it);
|
---|
[587] | 3621 | }
|
---|
| 3622 |
|
---|
| 3623 | viewCell->SetVolume(volume);
|
---|
| 3624 | viewCell->SetArea(area);
|
---|
[502] | 3625 | }
|
---|
| 3626 |
|
---|
[580] | 3627 |
|
---|
[879] | 3628 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3629 | {
|
---|
[1021] | 3630 | if (!ViewCellsConstructed())
|
---|
[1545] | 3631 | {
|
---|
[587] | 3632 | return NULL;
|
---|
[1545] | 3633 | }
|
---|
[587] | 3634 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3635 | {
|
---|
[587] | 3636 | return NULL;
|
---|
[1545] | 3637 | }
|
---|
[587] | 3638 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3639 | }
|
---|
| 3640 |
|
---|
| 3641 |
|
---|
[587] | 3642 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3643 | vector<MergeCandidate> &candidates)
|
---|
| 3644 | {
|
---|
| 3645 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3646 |
|
---|
| 3647 | if (mUseRaysForMerge)
|
---|
| 3648 | {
|
---|
| 3649 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3650 | }
|
---|
| 3651 | else
|
---|
| 3652 | {
|
---|
| 3653 | vector<BspLeaf *> leaves;
|
---|
| 3654 | mBspTree->CollectLeaves(leaves);
|
---|
| 3655 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3656 | }
|
---|
| 3657 |
|
---|
| 3658 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3659 | }
|
---|
| 3660 |
|
---|
| 3661 |
|
---|
[440] | 3662 |
|
---|
[1047] | 3663 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3664 | const bool exportPvs,
|
---|
| 3665 | const ObjectContainer &objects)
|
---|
[590] | 3666 | {
|
---|
[1551] | 3667 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3668 | {
|
---|
| 3669 | return false;
|
---|
| 3670 | }
|
---|
| 3671 |
|
---|
[590] | 3672 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3673 |
|
---|
[1551] | 3674 | OUT_STREAM stream(filename.c_str());
|
---|
| 3675 |
|
---|
[590] | 3676 | // for output we need unique ids for each view cell
|
---|
| 3677 | CreateUniqueViewCellIds();
|
---|
[503] | 3678 |
|
---|
[590] | 3679 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3680 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3681 |
|
---|
[1551] | 3682 | if (exportPvs)
|
---|
| 3683 | {
|
---|
| 3684 | //////////
|
---|
| 3685 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3686 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3687 |
|
---|
[1551] | 3688 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3689 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3690 |
|
---|
[1551] | 3691 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3692 | {
|
---|
[1563] | 3693 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3694 |
|
---|
[1563] | 3695 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3696 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3697 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3698 | }
|
---|
[590] | 3699 |
|
---|
[1551] | 3700 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3701 | }
|
---|
| 3702 |
|
---|
| 3703 | ///////////
|
---|
| 3704 | //-- export the view cells and the pvs
|
---|
| 3705 |
|
---|
| 3706 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3707 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3708 |
|
---|
| 3709 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 3710 |
|
---|
[590] | 3711 | stream << "</ViewCells>" << endl;
|
---|
| 3712 |
|
---|
[1551] | 3713 | /////////////
|
---|
| 3714 | //-- export the view space hierarchy
|
---|
| 3715 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 3716 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3717 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 3718 |
|
---|
[590] | 3719 | mBspTree->Export(stream);
|
---|
| 3720 |
|
---|
[1551] | 3721 | // end tags
|
---|
| 3722 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 3723 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3724 |
|
---|
[1551] | 3725 | stream.close();
|
---|
[590] | 3726 | cout << "finished" << endl;
|
---|
[1551] | 3727 |
|
---|
[590] | 3728 | return true;
|
---|
| 3729 | }
|
---|
| 3730 |
|
---|
| 3731 |
|
---|
[1545] | 3732 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 3733 | {
|
---|
| 3734 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 3735 |
|
---|
| 3736 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3737 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1545] | 3738 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 3739 |
|
---|
| 3740 | float volume = 0;
|
---|
| 3741 | vector<BspLeaf *> leaves;
|
---|
| 3742 | mBspTree->CollectLeaves(leaves);
|
---|
| 3743 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 3744 | ViewCell::NewMail();
|
---|
| 3745 |
|
---|
[1545] | 3746 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 3747 | {
|
---|
| 3748 | BspLeaf *leaf = *lit;
|
---|
| 3749 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 3750 |
|
---|
[1548] | 3751 | if (!vc->Mailed())
|
---|
| 3752 | {
|
---|
| 3753 | vc->Mail();
|
---|
| 3754 | vc->SetMergeCost(0.0f);
|
---|
| 3755 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 3756 |
|
---|
[1548] | 3757 | volume += vc->GetVolume();
|
---|
| 3758 | volume += vc->GetVolume();
|
---|
| 3759 | vcRoot->SetVolume(volume);
|
---|
| 3760 | }
|
---|
[1545] | 3761 | }
|
---|
| 3762 |
|
---|
| 3763 | return vcRoot;
|
---|
| 3764 | }
|
---|
| 3765 |
|
---|
| 3766 |
|
---|
[650] | 3767 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3768 | {
|
---|
[752] | 3769 | // terminate recursion
|
---|
[650] | 3770 | if (root->IsLeaf())
|
---|
| 3771 | {
|
---|
[752] | 3772 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3773 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3774 | return leaf->GetViewCell();
|
---|
[650] | 3775 | }
|
---|
| 3776 |
|
---|
| 3777 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3778 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3779 |
|
---|
[752] | 3780 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3781 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[650] | 3782 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3783 |
|
---|
[650] | 3784 | float volume = 0;
|
---|
[649] | 3785 |
|
---|
[650] | 3786 | BspNode *front = interior->GetFront();
|
---|
| 3787 | BspNode *back = interior->GetBack();
|
---|
[649] | 3788 |
|
---|
[752] | 3789 |
|
---|
[1545] | 3790 | ////////////
|
---|
[752] | 3791 | //-- recursivly compute child hierarchies
|
---|
[1545] | 3792 |
|
---|
[650] | 3793 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3794 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3795 |
|
---|
[752] | 3796 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3797 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3798 |
|
---|
[650] | 3799 | volume += backVc->GetVolume();
|
---|
| 3800 | volume += frontVc->GetVolume();
|
---|
[649] | 3801 |
|
---|
[650] | 3802 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3803 |
|
---|
[650] | 3804 | return viewCellInterior;
|
---|
[610] | 3805 | }
|
---|
| 3806 |
|
---|
[650] | 3807 |
|
---|
[590] | 3808 | /************************************************************************/
|
---|
| 3809 | /* KdViewCellsManager implementation */
|
---|
| 3810 | /************************************************************************/
|
---|
| 3811 |
|
---|
| 3812 |
|
---|
| 3813 |
|
---|
[1264] | 3814 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3815 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3816 | {
|
---|
| 3817 | }
|
---|
| 3818 |
|
---|
[605] | 3819 |
|
---|
[471] | 3820 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3821 | {
|
---|
[479] | 3822 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3823 | if (0)
|
---|
| 3824 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3825 | else
|
---|
| 3826 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3827 | }
|
---|
| 3828 |
|
---|
| 3829 |
|
---|
| 3830 |
|
---|
[479] | 3831 |
|
---|
[480] | 3832 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3833 | {
|
---|
| 3834 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3835 | }
|
---|
[479] | 3836 |
|
---|
[519] | 3837 |
|
---|
[574] | 3838 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3839 | const VssRayContainer &rays)
|
---|
[440] | 3840 | {
|
---|
[441] | 3841 | // if view cells already constructed
|
---|
[440] | 3842 | if (ViewCellsConstructed())
|
---|
| 3843 | return 0;
|
---|
[441] | 3844 |
|
---|
[440] | 3845 | mKdTree->Construct();
|
---|
| 3846 |
|
---|
[480] | 3847 | mTotalAreaValid = false;
|
---|
[469] | 3848 | // create the view cells
|
---|
| 3849 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3850 | // cast rays
|
---|
[574] | 3851 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3852 |
|
---|
[479] | 3853 | EvaluateViewCellsStats();
|
---|
[660] | 3854 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3855 |
|
---|
[440] | 3856 | return 0;
|
---|
| 3857 | }
|
---|
| 3858 |
|
---|
[587] | 3859 |
|
---|
[440] | 3860 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3861 | {
|
---|
| 3862 | return mKdTree->GetRoot() != NULL;
|
---|
| 3863 | }
|
---|
| 3864 |
|
---|
[1020] | 3865 |
|
---|
[503] | 3866 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3867 | const VssRayContainer &rays)
|
---|
[440] | 3868 | {
|
---|
| 3869 | return 0;
|
---|
| 3870 | }
|
---|
| 3871 |
|
---|
[1020] | 3872 |
|
---|
[1570] | 3873 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3874 | const int maxViewCells,
|
---|
| 3875 | const bool sortViewCells,
|
---|
| 3876 | const bool exportPvs,
|
---|
| 3877 | const bool exportRays,
|
---|
| 3878 | const int maxRays,
|
---|
| 3879 | const string prefix,
|
---|
| 3880 | VssRayContainer *visRays)
|
---|
| 3881 | {
|
---|
| 3882 | // TODO
|
---|
| 3883 | }
|
---|
| 3884 |
|
---|
| 3885 |
|
---|
[440] | 3886 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3887 | const VssRayContainer &sampleRays)
|
---|
[440] | 3888 | {
|
---|
[441] | 3889 | if (!ViewCellsConstructed())
|
---|
| 3890 | return;
|
---|
| 3891 |
|
---|
[469] | 3892 | // using view cells instead of the kd PVS of objects
|
---|
| 3893 | const bool useViewCells = true;
|
---|
| 3894 | bool exportRays = false;
|
---|
[440] | 3895 |
|
---|
| 3896 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3897 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3898 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3899 |
|
---|
[469] | 3900 | if (useViewCells)
|
---|
[440] | 3901 | {
|
---|
[469] | 3902 | const int leafOut = 10;
|
---|
[503] | 3903 |
|
---|
[469] | 3904 | ViewCell::NewMail();
|
---|
[503] | 3905 |
|
---|
[469] | 3906 | //-- some rays for output
|
---|
| 3907 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3908 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3909 |
|
---|
| 3910 | //-- some random view cells and rays for output
|
---|
| 3911 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3912 |
|
---|
[469] | 3913 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3914 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3915 |
|
---|
[469] | 3916 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3917 | {
|
---|
[469] | 3918 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3919 | RayContainer vcRays;
|
---|
[503] | 3920 |
|
---|
[469] | 3921 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3922 | #if 0
|
---|
[469] | 3923 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3924 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3925 | {
|
---|
[469] | 3926 | Ray *ray = sampleRays[k];
|
---|
[503] | 3927 |
|
---|
[469] | 3928 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3929 | {
|
---|
| 3930 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3931 |
|
---|
| 3932 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3933 | {
|
---|
| 3934 | vcRays.push_back(ray);
|
---|
| 3935 | }
|
---|
| 3936 | }
|
---|
[479] | 3937 | }
|
---|
[503] | 3938 | #endif
|
---|
[469] | 3939 | Intersectable::NewMail();
|
---|
[503] | 3940 |
|
---|
[469] | 3941 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 3942 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 3943 |
|
---|
[1570] | 3944 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3945 | exporter->SetFilled();
|
---|
| 3946 |
|
---|
| 3947 | exporter->SetWireframe();
|
---|
| 3948 | //exporter->SetFilled();
|
---|
[503] | 3949 |
|
---|
[469] | 3950 | Material m;//= RandomMaterial();
|
---|
| 3951 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3952 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3953 |
|
---|
[469] | 3954 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3955 | exporter->ExportBox(box);
|
---|
| 3956 |
|
---|
| 3957 | // export rays piercing this view cell
|
---|
[503] | 3958 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3959 |
|
---|
[469] | 3960 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3961 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3962 |
|
---|
[469] | 3963 | // exporter->SetWireframe();
|
---|
| 3964 | exporter->SetFilled();
|
---|
[503] | 3965 |
|
---|
[1742] | 3966 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
| 3967 |
|
---|
| 3968 | while (pit.HasMoreEntries())
|
---|
| 3969 | {
|
---|
| 3970 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3971 |
|
---|
| 3972 | //-- output PVS of view cell
|
---|
| 3973 | Intersectable *intersect = entry.mObject;
|
---|
[469] | 3974 | if (!intersect->Mailed())
|
---|
| 3975 | {
|
---|
| 3976 | exporter->ExportIntersectable(intersect);
|
---|
| 3977 | intersect->Mail();
|
---|
[503] | 3978 | }
|
---|
[440] | 3979 | }
|
---|
[503] | 3980 |
|
---|
[469] | 3981 | DEL_PTR(exporter);
|
---|
| 3982 | cout << "finished" << endl;
|
---|
[440] | 3983 | }
|
---|
[469] | 3984 |
|
---|
| 3985 | DEL_PTR(rays);
|
---|
[440] | 3986 | }
|
---|
[469] | 3987 | else // using kd PVS of objects
|
---|
| 3988 | {
|
---|
| 3989 | for (int i = 0; i < limit; ++ i)
|
---|
| 3990 | {
|
---|
| 3991 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3992 |
|
---|
[469] | 3993 | // check whether we can add this to the rays
|
---|
[503] | 3994 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3995 | {
|
---|
| 3996 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3997 | {
|
---|
| 3998 | rays[j].push_back(ray);
|
---|
| 3999 | }
|
---|
| 4000 | }
|
---|
| 4001 | }
|
---|
[440] | 4002 |
|
---|
[503] | 4003 | if (exportRays)
|
---|
[469] | 4004 | {
|
---|
| 4005 | Exporter *exporter = NULL;
|
---|
| 4006 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 4007 | exporter->SetWireframe();
|
---|
| 4008 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 4009 |
|
---|
[1757] | 4010 | for (int i = 0; i < pvsOut; i++)
|
---|
[469] | 4011 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 4012 |
|
---|
| 4013 | exporter->SetFilled();
|
---|
| 4014 | delete exporter;
|
---|
| 4015 | }
|
---|
[440] | 4016 |
|
---|
[503] | 4017 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 4018 | {
|
---|
| 4019 | Intersectable *object = objects[k];
|
---|
[1757] | 4020 | char str[64]; sprintf(str, "viewcell%04d.wrl", k);
|
---|
[440] | 4021 |
|
---|
[1570] | 4022 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 4023 | exporter->SetWireframe();
|
---|
[503] | 4024 |
|
---|
[1736] | 4025 | // matt: no kd pvs
|
---|
| 4026 | /*
|
---|
[1233] | 4027 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 4028 | Intersectable::NewMail();
|
---|
[503] | 4029 |
|
---|
[469] | 4030 | // avoid adding the object to the list
|
---|
| 4031 | object->Mail();
|
---|
| 4032 | ObjectContainer visibleObjects;
|
---|
[503] | 4033 |
|
---|
[1233] | 4034 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 4035 | {
|
---|
[1233] | 4036 | KdNode *node = (*kit).first;
|
---|
[469] | 4037 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 4038 |
|
---|
[469] | 4039 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 4040 | }
|
---|
[503] | 4041 |
|
---|
[469] | 4042 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 4043 | exporter->SetFilled();
|
---|
[503] | 4044 |
|
---|
[469] | 4045 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 4046 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 4047 |
|
---|
[469] | 4048 | Material m;
|
---|
| 4049 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4050 | exporter->SetForcedMaterial(m);
|
---|
| 4051 | exporter->ExportIntersectable(object);
|
---|
[1736] | 4052 | */
|
---|
[469] | 4053 | delete exporter;
|
---|
[440] | 4054 | }
|
---|
[503] | 4055 | }
|
---|
[440] | 4056 | }
|
---|
| 4057 |
|
---|
[469] | 4058 |
|
---|
[580] | 4059 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4060 | {
|
---|
| 4061 | return new KdViewCell(mesh);
|
---|
| 4062 | }
|
---|
[482] | 4063 |
|
---|
[580] | 4064 |
|
---|
| 4065 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4066 | ViewCell *vc,
|
---|
[1416] | 4067 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4068 | const AxisAlignedPlane *clipPlane
|
---|
| 4069 | ) const
|
---|
[482] | 4070 | {
|
---|
[580] | 4071 | ViewCellContainer leaves;
|
---|
| 4072 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4073 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4074 |
|
---|
| 4075 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4076 | {
|
---|
| 4077 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 4078 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 4079 | }
|
---|
[482] | 4080 | }
|
---|
| 4081 |
|
---|
| 4082 |
|
---|
[440] | 4083 | int KdViewCellsManager::GetType() const
|
---|
| 4084 | {
|
---|
| 4085 | return ViewCellsManager::KD;
|
---|
| 4086 | }
|
---|
| 4087 |
|
---|
| 4088 |
|
---|
[441] | 4089 |
|
---|
[440] | 4090 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 4091 | {
|
---|
| 4092 | KdNode *node = leaf;
|
---|
| 4093 |
|
---|
| 4094 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 4095 | node = node->mParent;
|
---|
[1176] | 4096 |
|
---|
[440] | 4097 | return node;
|
---|
| 4098 | }
|
---|
| 4099 |
|
---|
[469] | 4100 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4101 | const Vector3 &termination,
|
---|
| 4102 | ViewCellContainer &viewcells)
|
---|
[466] | 4103 | {
|
---|
[469] | 4104 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 4105 | }
|
---|
| 4106 |
|
---|
[469] | 4107 |
|
---|
[503] | 4108 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4109 | {
|
---|
[551] | 4110 | // TODO
|
---|
[503] | 4111 | }
|
---|
| 4112 |
|
---|
[580] | 4113 |
|
---|
| 4114 |
|
---|
| 4115 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4116 | vector<MergeCandidate> &candidates)
|
---|
| 4117 | {
|
---|
| 4118 | // TODO
|
---|
| 4119 | }
|
---|
| 4120 |
|
---|
[1021] | 4121 |
|
---|
| 4122 |
|
---|
[503] | 4123 | /**************************************************************************/
|
---|
| 4124 | /* VspBspViewCellsManager implementation */
|
---|
| 4125 | /**************************************************************************/
|
---|
[482] | 4126 |
|
---|
[503] | 4127 |
|
---|
[1264] | 4128 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 4129 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 4130 | {
|
---|
[1004] | 4131 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 4132 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 4133 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 4134 | }
|
---|
| 4135 |
|
---|
[477] | 4136 |
|
---|
[475] | 4137 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 4138 | {
|
---|
| 4139 | }
|
---|
| 4140 |
|
---|
[477] | 4141 |
|
---|
[471] | 4142 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 4143 | {
|
---|
[551] | 4144 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 4145 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 4146 | else
|
---|
| 4147 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 4148 | }
|
---|
| 4149 |
|
---|
[477] | 4150 |
|
---|
[480] | 4151 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 4152 | {
|
---|
[1545] | 4153 | // view cells tree constructed?
|
---|
[581] | 4154 | if (!ViewCellsTreeConstructed())
|
---|
| 4155 | {
|
---|
[590] | 4156 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 4157 | }
|
---|
| 4158 | else
|
---|
[1264] | 4159 | {
|
---|
| 4160 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 4161 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 4162 | }
|
---|
[480] | 4163 | }
|
---|
| 4164 |
|
---|
| 4165 |
|
---|
[1021] | 4166 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4167 | vector<MergeCandidate> &candidates)
|
---|
| 4168 | {
|
---|
| 4169 | cout << "collecting merge candidates ... " << endl;
|
---|
| 4170 |
|
---|
| 4171 | if (mUseRaysForMerge)
|
---|
| 4172 | {
|
---|
| 4173 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 4174 | }
|
---|
| 4175 | else
|
---|
| 4176 | {
|
---|
| 4177 | vector<BspLeaf *> leaves;
|
---|
| 4178 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 4179 |
|
---|
| 4180 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 4181 | }
|
---|
| 4182 |
|
---|
| 4183 | cout << "fininshed collecting candidates" << endl;
|
---|
| 4184 | }
|
---|
| 4185 |
|
---|
| 4186 |
|
---|
[442] | 4187 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4188 | {
|
---|
| 4189 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 4190 | }
|
---|
| 4191 |
|
---|
[462] | 4192 |
|
---|
[442] | 4193 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4194 | {
|
---|
| 4195 | return new BspViewCell(mesh);
|
---|
| 4196 | }
|
---|
| 4197 |
|
---|
[569] | 4198 |
|
---|
[574] | 4199 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 4200 | const VssRayContainer &rays)
|
---|
[442] | 4201 | {
|
---|
[710] | 4202 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4203 |
|
---|
[503] | 4204 | // if view cells were already constructed
|
---|
| 4205 | if (ViewCellsConstructed())
|
---|
[1545] | 4206 | {
|
---|
[503] | 4207 | return 0;
|
---|
[1545] | 4208 | }
|
---|
[442] | 4209 |
|
---|
[503] | 4210 | int sampleContributions = 0;
|
---|
| 4211 | VssRayContainer sampleRays;
|
---|
| 4212 |
|
---|
[1545] | 4213 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 4214 |
|
---|
[660] | 4215 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 4216 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 4217 |
|
---|
[1545] | 4218 | VssRayContainer savedRays;
|
---|
[487] | 4219 |
|
---|
[1545] | 4220 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4221 | {
|
---|
| 4222 | VssRayContainer constructionRays;
|
---|
| 4223 |
|
---|
| 4224 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 4225 |
|
---|
[1545] | 4226 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 4227 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 4228 |
|
---|
[667] | 4229 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 4230 | }
|
---|
[666] | 4231 | else
|
---|
[1221] | 4232 | {
|
---|
[1545] | 4233 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 4234 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 4235 | }
|
---|
[667] | 4236 |
|
---|
[490] | 4237 | // collapse invalid regions
|
---|
[491] | 4238 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 4239 | long startTime = GetTime();
|
---|
| 4240 |
|
---|
[1002] | 4241 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 4242 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4243 | << " seconds" << endl;
|
---|
| 4244 |
|
---|
[495] | 4245 | cout << "finished" << endl;
|
---|
[503] | 4246 |
|
---|
[1444] | 4247 | /////////////////
|
---|
[1221] | 4248 | //-- stats after construction
|
---|
| 4249 |
|
---|
[660] | 4250 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 4251 |
|
---|
[480] | 4252 | ResetViewCells();
|
---|
[660] | 4253 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 4254 |
|
---|
[491] | 4255 |
|
---|
[1444] | 4256 | //////////////////////
|
---|
[1545] | 4257 | //-- recast the rest of the rays
|
---|
[1570] | 4258 |
|
---|
[495] | 4259 | startTime = GetTime();
|
---|
[503] | 4260 |
|
---|
[491] | 4261 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 4262 |
|
---|
| 4263 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4264 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 4265 |
|
---|
[491] | 4266 | cout << "finished" << endl;
|
---|
| 4267 |
|
---|
[503] | 4268 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 4269 | << " secs" << endl;
|
---|
[442] | 4270 |
|
---|
[485] | 4271 | cout << "construction finished" << endl;
|
---|
[503] | 4272 |
|
---|
[719] | 4273 | if (0)
|
---|
[1545] | 4274 | { ////////
|
---|
[1077] | 4275 | //-- real meshes are contructed at this stage
|
---|
[1768] | 4276 |
|
---|
[719] | 4277 | cout << "finalizing view cells ... ";
|
---|
| 4278 | FinalizeViewCells(true);
|
---|
| 4279 | cout << "finished" << endl;
|
---|
| 4280 | }
|
---|
| 4281 |
|
---|
[442] | 4282 | return sampleContributions;
|
---|
| 4283 | }
|
---|
| 4284 |
|
---|
[489] | 4285 |
|
---|
[503] | 4286 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 4287 | const ObjectContainer &objects)
|
---|
[475] | 4288 | {
|
---|
[442] | 4289 | int vcSize = 0;
|
---|
| 4290 | int pvsSize = 0;
|
---|
| 4291 |
|
---|
[650] | 4292 | //-- merge view cells
|
---|
| 4293 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 4294 | long startTime = GetTime();
|
---|
| 4295 |
|
---|
| 4296 |
|
---|
[597] | 4297 | if (mMergeViewCells)
|
---|
| 4298 | {
|
---|
| 4299 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 4300 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 4301 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 4302 | }
|
---|
| 4303 | else
|
---|
| 4304 | {
|
---|
[710] | 4305 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4306 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 4307 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 4308 |
|
---|
| 4309 | // compute pvs
|
---|
| 4310 | ObjectPvs pvs;
|
---|
| 4311 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 4312 | }
|
---|
[442] | 4313 |
|
---|
[666] | 4314 | if (1)
|
---|
| 4315 | {
|
---|
| 4316 | char mstats[100];
|
---|
[752] | 4317 | ObjectPvs pvs;
|
---|
| 4318 |
|
---|
[1004] | 4319 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 4320 | mViewCellsTree->ExportStats(mstats);
|
---|
| 4321 | }
|
---|
[485] | 4322 |
|
---|
[650] | 4323 | cout << "merged view cells in "
|
---|
| 4324 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 4325 |
|
---|
[650] | 4326 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 4327 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 4328 |
|
---|
| 4329 |
|
---|
[1444] | 4330 | //////////////////
|
---|
| 4331 | //-- stats and visualizations
|
---|
| 4332 |
|
---|
[600] | 4333 | int savedColorCode = mColorCode;
|
---|
| 4334 |
|
---|
[660] | 4335 | // get currently active view cell set
|
---|
| 4336 | ResetViewCells();
|
---|
| 4337 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 4338 |
|
---|
[1616] | 4339 | if (mShowVisualization) // export merged view cells
|
---|
[483] | 4340 | {
|
---|
[600] | 4341 | mColorCode = 0;
|
---|
[744] | 4342 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 4343 |
|
---|
[485] | 4344 | cout << "exporting view cells after merge ... ";
|
---|
| 4345 |
|
---|
| 4346 | if (exporter)
|
---|
[483] | 4347 | {
|
---|
[600] | 4348 | if (0)
|
---|
| 4349 | exporter->SetWireframe();
|
---|
| 4350 | else
|
---|
| 4351 | exporter->SetFilled();
|
---|
| 4352 |
|
---|
[1760] | 4353 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[600] | 4354 |
|
---|
[485] | 4355 | if (mExportGeometry)
|
---|
[483] | 4356 | {
|
---|
[485] | 4357 | Material m;
|
---|
| 4358 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4359 | exporter->SetForcedMaterial(m);
|
---|
| 4360 | exporter->SetFilled();
|
---|
[442] | 4361 |
|
---|
[485] | 4362 | exporter->ExportGeometry(objects);
|
---|
[442] | 4363 | }
|
---|
[485] | 4364 |
|
---|
[600] | 4365 | delete exporter;
|
---|
| 4366 | }
|
---|
| 4367 | cout << "finished" << endl;
|
---|
| 4368 | }
|
---|
| 4369 |
|
---|
[1616] | 4370 | if (mShowVisualization)
|
---|
[600] | 4371 | {
|
---|
[1416] | 4372 | // use pvs size for color coding
|
---|
| 4373 | mColorCode = 1;
|
---|
[744] | 4374 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 4375 |
|
---|
[600] | 4376 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 4377 |
|
---|
| 4378 | if (exporter)
|
---|
| 4379 | {
|
---|
[1416] | 4380 | exporter->SetFilled();
|
---|
[598] | 4381 |
|
---|
[1760] | 4382 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[598] | 4383 |
|
---|
[600] | 4384 | if (mExportGeometry)
|
---|
| 4385 | {
|
---|
| 4386 | Material m;
|
---|
| 4387 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4388 | exporter->SetForcedMaterial(m);
|
---|
| 4389 | exporter->SetFilled();
|
---|
| 4390 |
|
---|
| 4391 | exporter->ExportGeometry(objects);
|
---|
| 4392 | }
|
---|
| 4393 |
|
---|
[485] | 4394 | delete exporter;
|
---|
[442] | 4395 | }
|
---|
[485] | 4396 | cout << "finished" << endl;
|
---|
[442] | 4397 | }
|
---|
[600] | 4398 |
|
---|
| 4399 | mColorCode = savedColorCode;
|
---|
[503] | 4400 | }
|
---|
[475] | 4401 |
|
---|
[503] | 4402 |
|
---|
[564] | 4403 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 4404 | const ObjectContainer &objects)
|
---|
[503] | 4405 | {
|
---|
[485] | 4406 | mRenderer->RenderScene();
|
---|
[1616] | 4407 |
|
---|
[503] | 4408 | SimulationStatistics ss;
|
---|
[485] | 4409 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 4410 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 4411 |
|
---|
[1414] | 4412 | const long startTime = GetTime();
|
---|
[489] | 4413 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 4414 |
|
---|
| 4415 | // refining the merged view cells
|
---|
[580] | 4416 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 4417 |
|
---|
[442] | 4418 | //-- stats and visualizations
|
---|
| 4419 | cout << "finished" << endl;
|
---|
[485] | 4420 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 4421 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 4422 |
|
---|
[485] | 4423 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 4424 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 4425 | }
|
---|
[495] | 4426 |
|
---|
[517] | 4427 |
|
---|
[503] | 4428 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4429 | const VssRayContainer &rays)
|
---|
[840] | 4430 | {
|
---|
[503] | 4431 | if (!ViewCellsConstructed())
|
---|
| 4432 | {
|
---|
[517] | 4433 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4434 | return 0;
|
---|
| 4435 | }
|
---|
[520] | 4436 |
|
---|
[609] | 4437 | // view cells already finished before post processing step
|
---|
| 4438 | // (i.e. because they were loaded)
|
---|
[520] | 4439 | if (mViewCellsFinished)
|
---|
[542] | 4440 | {
|
---|
[551] | 4441 | FinalizeViewCells(true);
|
---|
[542] | 4442 | EvaluateViewCellsStats();
|
---|
[577] | 4443 |
|
---|
[517] | 4444 | return 0;
|
---|
[542] | 4445 | }
|
---|
[448] | 4446 |
|
---|
[710] | 4447 | // check if new view cells turned invalid
|
---|
| 4448 | int minPvs, maxPvs;
|
---|
[564] | 4449 |
|
---|
[710] | 4450 | if (0)
|
---|
| 4451 | {
|
---|
| 4452 | minPvs = mMinPvsSize;
|
---|
| 4453 | maxPvs = mMaxPvsSize;
|
---|
| 4454 | }
|
---|
| 4455 | else
|
---|
| 4456 | {
|
---|
[1414] | 4457 | // problem matt: why did I start here from zero?
|
---|
| 4458 | minPvs = 0;
|
---|
[710] | 4459 | maxPvs = mMaxPvsSize;
|
---|
| 4460 | }
|
---|
[720] | 4461 |
|
---|
[710] | 4462 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4463 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4464 |
|
---|
| 4465 | SetValidity(minPvs, maxPvs);
|
---|
| 4466 |
|
---|
[574] | 4467 | // update valid view space according to valid view cells
|
---|
[720] | 4468 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4469 |
|
---|
[720] | 4470 | // area has to be recomputed
|
---|
[574] | 4471 | mTotalAreaValid = false;
|
---|
[517] | 4472 | VssRayContainer postProcessRays;
|
---|
[605] | 4473 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4474 |
|
---|
[517] | 4475 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4476 |
|
---|
[1444] | 4477 | //////////
|
---|
[1768] | 4478 | //-- merge neighbouring view cells
|
---|
[597] | 4479 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4480 |
|
---|
[1444] | 4481 | // refines the merged view cells
|
---|
[720] | 4482 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4483 |
|
---|
[1444] | 4484 |
|
---|
| 4485 | ///////////
|
---|
[660] | 4486 | //-- render simulation after merge + refine
|
---|
[1414] | 4487 |
|
---|
[1415] | 4488 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4489 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4490 | SimulationStatistics ss;
|
---|
| 4491 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4492 | cout << ss << endl;
|
---|
[1414] | 4493 |
|
---|
[1843] | 4494 | if (0) CompressViewCells();
|
---|
| 4495 |
|
---|
[517] | 4496 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4497 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4498 |
|
---|
[574] | 4499 | // recompute view cell list and statistics
|
---|
[520] | 4500 | ResetViewCells();
|
---|
| 4501 |
|
---|
[719] | 4502 | // compute final meshes and volume / area
|
---|
| 4503 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4504 |
|
---|
[503] | 4505 | return 0;
|
---|
[442] | 4506 | }
|
---|
| 4507 |
|
---|
[490] | 4508 |
|
---|
[442] | 4509 | int VspBspViewCellsManager::GetType() const
|
---|
| 4510 | {
|
---|
| 4511 | return VSP_BSP;
|
---|
| 4512 | }
|
---|
| 4513 |
|
---|
| 4514 |
|
---|
[650] | 4515 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4516 | {
|
---|
[752] | 4517 | // terminate recursion
|
---|
[650] | 4518 | if (root->IsLeaf())
|
---|
| 4519 | {
|
---|
[752] | 4520 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4521 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4522 | return leaf->GetViewCell();
|
---|
[650] | 4523 | }
|
---|
| 4524 |
|
---|
[752] | 4525 |
|
---|
[650] | 4526 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4527 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4528 |
|
---|
[752] | 4529 | // evaluate merge cost for priority traversal
|
---|
[650] | 4530 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4531 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4532 |
|
---|
[650] | 4533 | float volume = 0;
|
---|
| 4534 |
|
---|
| 4535 | BspNode *front = interior->GetFront();
|
---|
| 4536 | BspNode *back = interior->GetBack();
|
---|
[649] | 4537 |
|
---|
[752] | 4538 |
|
---|
| 4539 | ObjectPvs frontPvs, backPvs;
|
---|
| 4540 |
|
---|
| 4541 | //-- recursivly compute child hierarchies
|
---|
[650] | 4542 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4543 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4544 |
|
---|
[752] | 4545 |
|
---|
| 4546 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4547 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4548 |
|
---|
| 4549 | volume += backVc->GetVolume();
|
---|
| 4550 | volume += frontVc->GetVolume();
|
---|
| 4551 |
|
---|
| 4552 | viewCellInterior->SetVolume(volume);
|
---|
| 4553 |
|
---|
| 4554 | return viewCellInterior;
|
---|
[609] | 4555 | }
|
---|
| 4556 |
|
---|
| 4557 |
|
---|
[490] | 4558 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4559 | {
|
---|
| 4560 | if (!ViewCellsConstructed())
|
---|
| 4561 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4562 |
|
---|
| 4563 | // TODO: set reasonable limit
|
---|
| 4564 | const int limit = 20;
|
---|
| 4565 |
|
---|
| 4566 | for (int i = 0; i < limit; ++ i)
|
---|
| 4567 | {
|
---|
[542] | 4568 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4569 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4570 | {
|
---|
| 4571 | return true;
|
---|
| 4572 | }
|
---|
| 4573 | }
|
---|
[997] | 4574 |
|
---|
[490] | 4575 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4576 | return false;
|
---|
| 4577 | }
|
---|
| 4578 |
|
---|
| 4579 |
|
---|
| 4580 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4581 | {
|
---|
[1551] | 4582 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4583 | // validy update in preprocessor for all managers)
|
---|
| 4584 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4585 |
|
---|
[1551] | 4586 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4587 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4588 | }
|
---|
| 4589 |
|
---|
| 4590 |
|
---|
[442] | 4591 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4592 | const VssRayContainer &sampleRays)
|
---|
[442] | 4593 | {
|
---|
| 4594 | if (!ViewCellsConstructed())
|
---|
| 4595 | return;
|
---|
| 4596 |
|
---|
[485] | 4597 | VssRayContainer visRays;
|
---|
| 4598 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4599 |
|
---|
[1551] | 4600 | if (1)
|
---|
[1047] | 4601 | {
|
---|
[1416] | 4602 | //////////////////
|
---|
| 4603 | //-- export final view cell partition
|
---|
| 4604 |
|
---|
[1020] | 4605 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4606 |
|
---|
[442] | 4607 | if (exporter)
|
---|
| 4608 | {
|
---|
[580] | 4609 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4610 | if (0)
|
---|
[1563] | 4611 | { // export view space box
|
---|
[542] | 4612 | exporter->SetWireframe();
|
---|
| 4613 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4614 | exporter->SetFilled();
|
---|
| 4615 | }
|
---|
| 4616 |
|
---|
[1052] | 4617 | Material m;
|
---|
| 4618 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4619 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4620 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4621 |
|
---|
| 4622 | exporter->SetForcedMaterial(m);
|
---|
| 4623 |
|
---|
[1563] | 4624 | if (1 && mExportGeometry)
|
---|
[542] | 4625 | {
|
---|
[485] | 4626 | exporter->ExportGeometry(objects);
|
---|
[542] | 4627 | }
|
---|
[489] | 4628 |
|
---|
[1047] | 4629 | if (0 && mExportRays)
|
---|
[489] | 4630 | {
|
---|
[1052] | 4631 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4632 | }
|
---|
[1760] | 4633 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1020] | 4634 |
|
---|
[442] | 4635 | delete exporter;
|
---|
[580] | 4636 | cout << "finished" << endl;
|
---|
[442] | 4637 | }
|
---|
[557] | 4638 | }
|
---|
[503] | 4639 |
|
---|
[1551] | 4640 | ////////////////
|
---|
[442] | 4641 | //-- visualization of the BSP splits
|
---|
[1551] | 4642 |
|
---|
[442] | 4643 | bool exportSplits = false;
|
---|
[1004] | 4644 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4645 |
|
---|
[442] | 4646 | if (exportSplits)
|
---|
| 4647 | {
|
---|
| 4648 | cout << "exporting splits ... ";
|
---|
[485] | 4649 | ExportSplits(objects, visRays);
|
---|
[442] | 4650 | cout << "finished" << endl;
|
---|
| 4651 | }
|
---|
| 4652 |
|
---|
[1551] | 4653 | ////////
|
---|
[542] | 4654 | //-- export single view cells
|
---|
[1570] | 4655 |
|
---|
| 4656 | int leafOut;
|
---|
| 4657 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4658 | const int raysOut = 100;
|
---|
| 4659 |
|
---|
| 4660 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4661 | }
|
---|
| 4662 |
|
---|
[503] | 4663 |
|
---|
[485] | 4664 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4665 | const VssRayContainer &rays)
|
---|
[442] | 4666 | {
|
---|
| 4667 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4668 |
|
---|
[503] | 4669 | if (exporter)
|
---|
| 4670 | {
|
---|
| 4671 | Material m;
|
---|
[442] | 4672 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4673 | exporter->SetForcedMaterial(m);
|
---|
| 4674 | exporter->SetWireframe();
|
---|
[503] | 4675 |
|
---|
[448] | 4676 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4677 |
|
---|
| 4678 | // take forced material, else big scenes cannot be viewed
|
---|
| 4679 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4680 | exporter->SetForcedMaterial(m);
|
---|
| 4681 | exporter->SetFilled();
|
---|
| 4682 |
|
---|
| 4683 | exporter->ResetForcedMaterial();
|
---|
[503] | 4684 |
|
---|
[442] | 4685 | // export rays
|
---|
[485] | 4686 | if (mExportRays)
|
---|
[1545] | 4687 | {
|
---|
[485] | 4688 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4689 | }
|
---|
[503] | 4690 |
|
---|
[485] | 4691 | if (mExportGeometry)
|
---|
[1545] | 4692 | {
|
---|
[442] | 4693 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4694 | }
|
---|
[442] | 4695 | delete exporter;
|
---|
| 4696 | }
|
---|
| 4697 | }
|
---|
| 4698 |
|
---|
[503] | 4699 |
|
---|
[1570] | 4700 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4701 | const int maxViewCells,
|
---|
| 4702 | const bool sortViewCells,
|
---|
| 4703 | const bool exportPvs,
|
---|
| 4704 | const bool exportRays,
|
---|
| 4705 | const int maxRays,
|
---|
| 4706 | const string prefix,
|
---|
| 4707 | VssRayContainer *visRays)
|
---|
| 4708 | {
|
---|
[694] | 4709 | if (sortViewCells)
|
---|
[801] | 4710 | {
|
---|
[1570] | 4711 | // sort view cells to visualize the largest view cells
|
---|
[1789] | 4712 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[801] | 4713 | }
|
---|
| 4714 |
|
---|
[1566] | 4715 | //////////
|
---|
[1570] | 4716 | //-- some view cells for output
|
---|
[483] | 4717 |
|
---|
[1570] | 4718 | ViewCell::NewMail();
|
---|
| 4719 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 4720 |
|
---|
[478] | 4721 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4722 | {
|
---|
[478] | 4723 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4724 |
|
---|
[1570] | 4725 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 4726 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 4727 |
|
---|
[1570] | 4728 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 4729 | continue;
|
---|
| 4730 |
|
---|
| 4731 | vc->Mail();
|
---|
| 4732 |
|
---|
[801] | 4733 | ObjectPvs pvs;
|
---|
| 4734 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4735 |
|
---|
[1570] | 4736 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 4737 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4738 |
|
---|
[1709] | 4739 | const float pvsCost = mViewCellsTree->GetPvsCost(vc);
|
---|
| 4740 | cout << "view cell " << vc->GetId() << ": pvs cost=" << pvsCost << endl;
|
---|
[587] | 4741 |
|
---|
[1570] | 4742 | if (exportRays)
|
---|
[442] | 4743 | {
|
---|
[1566] | 4744 | ////////////
|
---|
| 4745 | //-- export rays piercing this view cell
|
---|
| 4746 |
|
---|
| 4747 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 4748 | VssRayContainer vcRays;
|
---|
| 4749 | VssRayContainer collectRays;
|
---|
[639] | 4750 |
|
---|
[1566] | 4751 | // collect initial view cells
|
---|
[1551] | 4752 | ViewCellContainer leaves;
|
---|
| 4753 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 4754 |
|
---|
[1551] | 4755 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 4756 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 4757 | {
|
---|
[1551] | 4758 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 4759 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4760 |
|
---|
[1551] | 4761 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4762 | {
|
---|
[1551] | 4763 | collectRays.push_back(*rit);
|
---|
[639] | 4764 | }
|
---|
[1551] | 4765 | }
|
---|
[801] | 4766 |
|
---|
[1570] | 4767 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 4768 |
|
---|
[1566] | 4769 | // prepare some rays for output
|
---|
[1551] | 4770 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4771 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4772 | {
|
---|
[1566] | 4773 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 4774 |
|
---|
| 4775 | if (p < raysOut)
|
---|
[1566] | 4776 | {
|
---|
[1551] | 4777 | vcRays.push_back(*rit);
|
---|
[1566] | 4778 | }
|
---|
[639] | 4779 | }
|
---|
| 4780 |
|
---|
[1551] | 4781 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4782 | }
|
---|
[639] | 4783 |
|
---|
[1416] | 4784 | ////////////////
|
---|
[1020] | 4785 | //-- export view cell geometry
|
---|
[1416] | 4786 |
|
---|
[478] | 4787 | exporter->SetWireframe();
|
---|
[442] | 4788 |
|
---|
[478] | 4789 | Material m;//= RandomMaterial();
|
---|
| 4790 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4791 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4792 |
|
---|
[1416] | 4793 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4794 | exporter->SetFilled();
|
---|
[503] | 4795 |
|
---|
[1570] | 4796 | if (exportPvs)
|
---|
[574] | 4797 | {
|
---|
[801] | 4798 | Intersectable::NewMail();
|
---|
[1570] | 4799 |
|
---|
[1742] | 4800 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 4801 |
|
---|
[1570] | 4802 | cout << endl;
|
---|
[1742] | 4803 |
|
---|
[639] | 4804 | // output PVS of view cell
|
---|
[1742] | 4805 | while (pit.HasMoreEntries())
|
---|
| 4806 | {
|
---|
| 4807 | ObjectPvsEntry entry = pit.Next();
|
---|
| 4808 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 4809 |
|
---|
[639] | 4810 | if (!intersect->Mailed())
|
---|
| 4811 | {
|
---|
[1570] | 4812 | intersect->Mail();
|
---|
[1571] | 4813 |
|
---|
[643] | 4814 | m = RandomMaterial();
|
---|
| 4815 | exporter->SetForcedMaterial(m);
|
---|
[639] | 4816 | exporter->ExportIntersectable(intersect);
|
---|
| 4817 | }
|
---|
[503] | 4818 | }
|
---|
[1570] | 4819 | cout << endl;
|
---|
[442] | 4820 | }
|
---|
[801] | 4821 |
|
---|
[478] | 4822 | DEL_PTR(exporter);
|
---|
| 4823 | cout << "finished" << endl;
|
---|
[442] | 4824 | }
|
---|
| 4825 | }
|
---|
| 4826 |
|
---|
| 4827 |
|
---|
[1021] | 4828 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4829 | {
|
---|
[1021] | 4830 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4831 |
|
---|
[1021] | 4832 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4833 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4834 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4835 | const Vector3 width = Vector3(w);
|
---|
| 4836 |
|
---|
| 4837 | PrVs testPrVs;
|
---|
| 4838 |
|
---|
| 4839 | if (exporter)
|
---|
| 4840 | {
|
---|
| 4841 | ViewCellContainer viewCells;
|
---|
| 4842 |
|
---|
| 4843 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4844 |
|
---|
[1021] | 4845 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4846 |
|
---|
[1021] | 4847 | exporter->SetWireframe();
|
---|
[482] | 4848 |
|
---|
[1021] | 4849 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4850 | exporter->ExportBox(tbox);
|
---|
| 4851 |
|
---|
| 4852 | exporter->SetFilled();
|
---|
[503] | 4853 |
|
---|
[1021] | 4854 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4855 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4856 |
|
---|
[1021] | 4857 | //exporter->ResetForcedMaterial();
|
---|
| 4858 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4859 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4860 |
|
---|
[1021] | 4861 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4862 | exporter->ExportGeometry(objects);
|
---|
[547] | 4863 |
|
---|
[1021] | 4864 | delete exporter;
|
---|
[482] | 4865 | }
|
---|
[1021] | 4866 | }
|
---|
[482] | 4867 |
|
---|
[547] | 4868 |
|
---|
[1021] | 4869 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4870 | ViewCellContainer &viewCells) const
|
---|
| 4871 | {
|
---|
| 4872 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4873 | }
|
---|
| 4874 |
|
---|
| 4875 |
|
---|
[1021] | 4876 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4877 | const Vector3 &termination,
|
---|
| 4878 | ViewCellContainer &viewcells)
|
---|
| 4879 | {
|
---|
| 4880 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4881 | }
|
---|
| 4882 |
|
---|
| 4883 |
|
---|
[979] | 4884 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4885 | {
|
---|
| 4886 | int numSamples;
|
---|
[1161] | 4887 |
|
---|
[1004] | 4888 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4889 | cout << "samples" << numSamples << endl;
|
---|
| 4890 |
|
---|
| 4891 | vector<RenderCostSample> samples;
|
---|
| 4892 |
|
---|
[1145] | 4893 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4894 | return;
|
---|
| 4895 |
|
---|
[1145] | 4896 | //start the view point queries
|
---|
[979] | 4897 | long startTime = GetTime();
|
---|
| 4898 | cout << "starting sampling of render cost ... ";
|
---|
| 4899 |
|
---|
[1145] | 4900 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4901 |
|
---|
| 4902 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4903 |
|
---|
| 4904 |
|
---|
[1161] | 4905 | // for each sample:
|
---|
| 4906 | // find view cells associated with the samples
|
---|
| 4907 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 4908 | //
|
---|
[1161] | 4909 | // for each view cell:
|
---|
| 4910 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4911 | // export geometry with color coded pvs difference
|
---|
| 4912 |
|
---|
| 4913 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4914 |
|
---|
[979] | 4915 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4916 |
|
---|
[1161] | 4917 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4918 | {
|
---|
| 4919 | RenderCostSample sample = *rit;
|
---|
| 4920 |
|
---|
| 4921 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4922 |
|
---|
[1161] | 4923 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4924 |
|
---|
| 4925 | if (it == sampleMap.end())
|
---|
| 4926 | {
|
---|
| 4927 | sampleMap[vc] = sample.mPvs;
|
---|
| 4928 | }
|
---|
| 4929 | else
|
---|
| 4930 | {
|
---|
[1740] | 4931 | (*it).second.MergeInPlace(sample.mPvs);
|
---|
[1161] | 4932 | }
|
---|
| 4933 | }
|
---|
| 4934 |
|
---|
| 4935 | // visualize the view cells
|
---|
| 4936 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4937 |
|
---|
| 4938 | Material m;//= RandomMaterial();
|
---|
| 4939 |
|
---|
| 4940 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4941 | {
|
---|
| 4942 | ViewCell *vc = (*vit).first;
|
---|
| 4943 |
|
---|
| 4944 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4945 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4946 |
|
---|
[1168] | 4947 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4948 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4949 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 4950 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 4951 |
|
---|
[1415] | 4952 | /* // counting the pvss
|
---|
| 4953 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4954 | {
|
---|
| 4955 | RenderCostSample sample = *rit;
|
---|
| 4956 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 4957 |
|
---|
[1415] | 4958 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4959 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 4960 |
|
---|
[1415] | 4961 | DEL_PTR(hMesh);
|
---|
| 4962 | }
|
---|
| 4963 | */
|
---|
[979] | 4964 | }
|
---|
| 4965 | }
|
---|
| 4966 |
|
---|
| 4967 |
|
---|
[580] | 4968 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 4969 | ViewCell *vc,
|
---|
| 4970 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4971 | const AxisAlignedPlane *clipPlane
|
---|
| 4972 | ) const
|
---|
[482] | 4973 | {
|
---|
[660] | 4974 | if (clipPlane)
|
---|
[591] | 4975 | {
|
---|
[1047] | 4976 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4977 |
|
---|
[591] | 4978 | ViewCellContainer leaves;
|
---|
| 4979 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4980 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4981 |
|
---|
| 4982 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4983 | {
|
---|
| 4984 | BspNodeGeometry geom;
|
---|
| 4985 | BspNodeGeometry front;
|
---|
| 4986 | BspNodeGeometry back;
|
---|
| 4987 |
|
---|
[1551] | 4988 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 4989 |
|
---|
[1052] | 4990 | const float eps = 0.0001f;
|
---|
[1047] | 4991 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4992 |
|
---|
[710] | 4993 | if (cf == -1)
|
---|
[682] | 4994 | {
|
---|
| 4995 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4996 | }
|
---|
[710] | 4997 | else if (cf == 0)
|
---|
[684] | 4998 | {
|
---|
[682] | 4999 | geom.SplitGeometry(front,
|
---|
| 5000 | back,
|
---|
[1047] | 5001 | plane,
|
---|
[682] | 5002 | mViewSpaceBox,
|
---|
[710] | 5003 | eps);
|
---|
[801] | 5004 |
|
---|
[683] | 5005 | if (back.Valid())
|
---|
| 5006 | {
|
---|
[682] | 5007 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 5008 | }
|
---|
[684] | 5009 | }
|
---|
[591] | 5010 | }
|
---|
| 5011 | }
|
---|
| 5012 | else
|
---|
| 5013 | {
|
---|
[801] | 5014 | // export mesh if available
|
---|
[1001] | 5015 | // TODO: some bug here?
|
---|
[1563] | 5016 | if (1 && vc->GetMesh())
|
---|
[801] | 5017 | {
|
---|
| 5018 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 5019 | }
|
---|
| 5020 | else
|
---|
[1001] | 5021 | {
|
---|
[801] | 5022 | BspNodeGeometry geom;
|
---|
| 5023 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 5024 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 5025 | }
|
---|
[591] | 5026 | }
|
---|
[482] | 5027 | }
|
---|
| 5028 |
|
---|
| 5029 |
|
---|
| 5030 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 5031 | {
|
---|
[580] | 5032 | ViewCellContainer leaves;
|
---|
| 5033 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 5034 |
|
---|
| 5035 | int maxDist = 0;
|
---|
[580] | 5036 |
|
---|
[482] | 5037 | // compute max height difference
|
---|
[580] | 5038 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 5039 | {
|
---|
[580] | 5040 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 5041 | {
|
---|
[1551] | 5042 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 5043 |
|
---|
[1001] | 5044 | if (i != j)
|
---|
| 5045 | {
|
---|
[1551] | 5046 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 5047 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 5048 |
|
---|
| 5049 | if (dist > maxDist)
|
---|
| 5050 | maxDist = dist;
|
---|
| 5051 | }
|
---|
[482] | 5052 | }
|
---|
| 5053 | }
|
---|
[580] | 5054 |
|
---|
[492] | 5055 | return maxDist;
|
---|
| 5056 | }
|
---|
[482] | 5057 |
|
---|
[492] | 5058 |
|
---|
[879] | 5059 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 5060 | {
|
---|
[1021] | 5061 | if (!ViewCellsConstructed())
|
---|
[508] | 5062 | return NULL;
|
---|
[572] | 5063 |
|
---|
| 5064 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5065 | return NULL;
|
---|
| 5066 |
|
---|
[879] | 5067 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 5068 | }
|
---|
[503] | 5069 |
|
---|
| 5070 |
|
---|
| 5071 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5072 | {
|
---|
| 5073 | BspNodeGeometry geom;
|
---|
[590] | 5074 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 5075 |
|
---|
[1001] | 5076 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 5077 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 5078 |
|
---|
[503] | 5079 | vc->SetMesh(mesh);
|
---|
| 5080 | }
|
---|
[508] | 5081 |
|
---|
| 5082 |
|
---|
[532] | 5083 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5084 | {
|
---|
[535] | 5085 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 5086 | }
|
---|
[551] | 5087 |
|
---|
| 5088 |
|
---|
[587] | 5089 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5090 | const bool createMesh)
|
---|
[551] | 5091 | {
|
---|
| 5092 | float area = 0;
|
---|
| 5093 | float volume = 0;
|
---|
| 5094 |
|
---|
[580] | 5095 | ViewCellContainer leaves;
|
---|
[582] | 5096 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 5097 |
|
---|
| 5098 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5099 |
|
---|
[693] | 5100 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 5101 | {
|
---|
| 5102 | BspNodeGeometry geom;
|
---|
[1551] | 5103 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 5104 |
|
---|
[719] | 5105 | const float lVol = geom.GetVolume();
|
---|
| 5106 | const float lArea = geom.GetArea();
|
---|
[693] | 5107 |
|
---|
| 5108 | area += lArea;
|
---|
| 5109 | volume += lVol;
|
---|
| 5110 |
|
---|
[1616] | 5111 | if (createMesh)
|
---|
| 5112 | CreateMesh(*it);
|
---|
[551] | 5113 | }
|
---|
| 5114 |
|
---|
| 5115 | viewCell->SetVolume(volume);
|
---|
| 5116 | viewCell->SetArea(area);
|
---|
[563] | 5117 | }
|
---|
[575] | 5118 |
|
---|
| 5119 |
|
---|
[693] | 5120 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 5121 | {
|
---|
| 5122 | ViewCellContainer leaves;
|
---|
| 5123 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5124 |
|
---|
| 5125 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5126 |
|
---|
| 5127 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 5128 | float subdivVol = 0;
|
---|
| 5129 | float newVol = 0;
|
---|
| 5130 |
|
---|
| 5131 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5132 | {
|
---|
| 5133 | BspNodeGeometry geom;
|
---|
[1551] | 5134 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 5135 |
|
---|
| 5136 | const float lVol = geom.GetVolume();
|
---|
| 5137 |
|
---|
| 5138 | newVol += lVol;
|
---|
| 5139 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 5140 |
|
---|
[704] | 5141 | float thres = 0.9f;
|
---|
[697] | 5142 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 5143 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 5144 | }
|
---|
| 5145 |
|
---|
| 5146 | Debug << "exact volume: " << vol << endl;
|
---|
| 5147 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 5148 | Debug << "new volume: " << newVol << endl;
|
---|
| 5149 | }
|
---|
| 5150 |
|
---|
| 5151 |
|
---|
[577] | 5152 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5153 | {
|
---|
| 5154 | // TODO: do I still need this here?
|
---|
[590] | 5155 | if (0)
|
---|
[693] | 5156 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 5157 | }
|
---|
[575] | 5158 |
|
---|
[1021] | 5159 |
|
---|
| 5160 |
|
---|
[1887] | 5161 | /************************************************************************/
|
---|
| 5162 | /* VspOspViewCellsManager implementation */
|
---|
| 5163 | /************************************************************************/
|
---|
[1021] | 5164 |
|
---|
| 5165 |
|
---|
[1789] | 5166 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
| 5167 | const string &hierarchyType)
|
---|
[1740] | 5168 | : ViewCellsManager(vcTree)
|
---|
| 5169 | {
|
---|
| 5170 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
| 5171 |
|
---|
[1887] | 5172 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
| 5173 |
|
---|
| 5174 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5175 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5176 |
|
---|
[1740] | 5177 | mHierarchyManager = CreateHierarchyManager(hierarchyType);
|
---|
| 5178 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5179 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
| 5180 | }
|
---|
| 5181 |
|
---|
| 5182 |
|
---|
[1278] | 5183 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 5184 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 5185 | {
|
---|
[1640] | 5186 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
[1887] | 5187 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
[1106] | 5188 |
|
---|
[1887] | 5189 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5190 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5191 |
|
---|
[1278] | 5192 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5193 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 5194 | }
|
---|
[859] | 5195 |
|
---|
[1789] | 5196 |
|
---|
[1743] | 5197 | Intersectable *
|
---|
| 5198 | VspOspViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
|
---|
| 5199 | {
|
---|
[1902] | 5200 | if (mUseKdPvs)
|
---|
| 5201 | {
|
---|
| 5202 | return ViewCellsManager::GetIntersectable(ray, isTermination);
|
---|
| 5203 | }
|
---|
| 5204 | else
|
---|
| 5205 | {
|
---|
| 5206 | return mHierarchyManager->GetIntersectable(ray, isTermination);
|
---|
| 5207 | }
|
---|
[1743] | 5208 | }
|
---|
[859] | 5209 |
|
---|
[1789] | 5210 |
|
---|
[1740] | 5211 | HierarchyManager *VspOspViewCellsManager::CreateHierarchyManager(const string &hierarchyType)
|
---|
| 5212 | {
|
---|
| 5213 | HierarchyManager *hierarchyManager;
|
---|
| 5214 |
|
---|
| 5215 | if (strcmp(hierarchyType.c_str(), "osp") == 0)
|
---|
| 5216 | {
|
---|
| 5217 | Debug << "hierarchy manager: osp" << endl;
|
---|
| 5218 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
| 5219 | }
|
---|
| 5220 | else if (strcmp(hierarchyType.c_str(), "bvh") == 0)
|
---|
| 5221 | {
|
---|
| 5222 | Debug << "hierarchy manager: bvh" << endl;
|
---|
| 5223 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
| 5224 | }
|
---|
| 5225 | else // only view space partition
|
---|
| 5226 | {
|
---|
| 5227 | Debug << "hierarchy manager: obj" << endl;
|
---|
| 5228 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
| 5229 | }
|
---|
| 5230 |
|
---|
| 5231 | return hierarchyManager;
|
---|
| 5232 | }
|
---|
| 5233 |
|
---|
| 5234 |
|
---|
[1021] | 5235 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 5236 | {
|
---|
[1740] | 5237 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 5238 | }
|
---|
| 5239 |
|
---|
| 5240 |
|
---|
| 5241 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 5242 | {
|
---|
| 5243 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 5244 | }
|
---|
| 5245 |
|
---|
| 5246 |
|
---|
| 5247 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 5248 | {
|
---|
| 5249 | // view cells tree constructed
|
---|
| 5250 | if (!ViewCellsTreeConstructed())
|
---|
| 5251 | {
|
---|
[1278] | 5252 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 5253 | }
|
---|
| 5254 | else
|
---|
| 5255 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 5256 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 5257 | }
|
---|
| 5258 | }
|
---|
| 5259 |
|
---|
| 5260 |
|
---|
| 5261 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 5262 | {
|
---|
[1278] | 5263 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 5264 | }
|
---|
| 5265 |
|
---|
| 5266 |
|
---|
| 5267 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 5268 | {
|
---|
| 5269 | return new VspViewCell(mesh);
|
---|
| 5270 | }
|
---|
| 5271 |
|
---|
| 5272 |
|
---|
| 5273 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 5274 | const VssRayContainer &rays)
|
---|
| 5275 | {
|
---|
| 5276 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 5277 |
|
---|
[1074] | 5278 | // skip rest if view cells were already constructed
|
---|
[1021] | 5279 | if (ViewCellsConstructed())
|
---|
| 5280 | return 0;
|
---|
| 5281 |
|
---|
| 5282 | int sampleContributions = 0;
|
---|
| 5283 | VssRayContainer sampleRays;
|
---|
| 5284 |
|
---|
| 5285 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 5286 |
|
---|
| 5287 | VssRayContainer constructionRays;
|
---|
| 5288 | VssRayContainer savedRays;
|
---|
| 5289 |
|
---|
| 5290 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 5291 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 5292 |
|
---|
| 5293 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 5294 |
|
---|
[1421] | 5295 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 5296 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 5297 |
|
---|
[1293] | 5298 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 5299 |
|
---|
[1576] | 5300 | #if TEST_EVALUATION
|
---|
| 5301 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 5302 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 5303 | {
|
---|
| 5304 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 5305 | }
|
---|
| 5306 | #endif
|
---|
| 5307 |
|
---|
[1545] | 5308 | /////////////////////////
|
---|
[1444] | 5309 | //-- print satistics for subdivision and view cells
|
---|
| 5310 |
|
---|
[1421] | 5311 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 5312 |
|
---|
[1444] | 5313 | ResetViewCells();
|
---|
| 5314 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 5315 |
|
---|
[1545] | 5316 | //////////////
|
---|
[1444] | 5317 | //-- recast rest of rays
|
---|
| 5318 |
|
---|
[1286] | 5319 | const long startTime = GetTime();
|
---|
[1021] | 5320 | cout << "Computing remaining ray contributions ... ";
|
---|
| 5321 |
|
---|
| 5322 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 5323 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 5324 |
|
---|
[1415] | 5325 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 5326 | << " secs" << endl;
|
---|
| 5327 |
|
---|
| 5328 | if (0)
|
---|
[1545] | 5329 | { // real meshes are constructed at this stage
|
---|
[1021] | 5330 | cout << "finalizing view cells ... ";
|
---|
| 5331 | FinalizeViewCells(true);
|
---|
| 5332 | cout << "finished" << endl;
|
---|
| 5333 | }
|
---|
| 5334 |
|
---|
| 5335 | return sampleContributions;
|
---|
| 5336 | }
|
---|
| 5337 |
|
---|
| 5338 |
|
---|
| 5339 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 5340 | const VssRayContainer &rays)
|
---|
| 5341 | {
|
---|
| 5342 | if (!ViewCellsConstructed())
|
---|
| 5343 | {
|
---|
[1842] | 5344 | Debug << "post process error: no view cells constructed" << endl;
|
---|
[1021] | 5345 | return 0;
|
---|
| 5346 | }
|
---|
| 5347 |
|
---|
[1418] | 5348 | // if view cells were already constructed before post processing step
|
---|
| 5349 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 5350 | if (mViewCellsFinished)
|
---|
| 5351 | {
|
---|
| 5352 | FinalizeViewCells(true);
|
---|
| 5353 | EvaluateViewCellsStats();
|
---|
| 5354 |
|
---|
| 5355 | return 0;
|
---|
| 5356 | }
|
---|
| 5357 |
|
---|
| 5358 | // check if new view cells turned invalid
|
---|
| 5359 | int minPvs, maxPvs;
|
---|
| 5360 |
|
---|
| 5361 | if (0)
|
---|
| 5362 | {
|
---|
| 5363 | minPvs = mMinPvsSize;
|
---|
| 5364 | maxPvs = mMaxPvsSize;
|
---|
| 5365 | }
|
---|
| 5366 | else
|
---|
| 5367 | {
|
---|
[1414] | 5368 | // problem matt: why did I start here from zero?
|
---|
| 5369 | minPvs = 0;
|
---|
[1021] | 5370 | maxPvs = mMaxPvsSize;
|
---|
| 5371 | }
|
---|
| 5372 |
|
---|
| 5373 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5374 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5375 |
|
---|
| 5376 | SetValidity(minPvs, maxPvs);
|
---|
| 5377 |
|
---|
| 5378 |
|
---|
[1414] | 5379 | // area is not up to date, has to be recomputed
|
---|
[1021] | 5380 | mTotalAreaValid = false;
|
---|
| 5381 | VssRayContainer postProcessRays;
|
---|
| 5382 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 5383 |
|
---|
| 5384 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 5385 |
|
---|
| 5386 |
|
---|
| 5387 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 5388 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 5389 | mViewCellsTree->SetRoot(root);
|
---|
| 5390 |
|
---|
[1696] | 5391 | //////////////////////////
|
---|
| 5392 | //-- update pvs up to the root of the hierarchy
|
---|
[1418] | 5393 |
|
---|
[1021] | 5394 | ObjectPvs pvs;
|
---|
| 5395 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5396 |
|
---|
[1414] | 5397 |
|
---|
[1418] | 5398 | //////////////////////
|
---|
[1021] | 5399 | //-- render simulation after merge + refine
|
---|
[1414] | 5400 |
|
---|
[1415] | 5401 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 5402 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5403 | SimulationStatistics ss;
|
---|
| 5404 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 5405 | cout << ss << endl;
|
---|
[1414] | 5406 |
|
---|
[1486] | 5407 |
|
---|
[1843] | 5408 | mHierarchyManager->CreateUniqueObjectIds();
|
---|
| 5409 |
|
---|
[1586] | 5410 | ///////////
|
---|
[1021] | 5411 | //-- compression
|
---|
[1262] | 5412 |
|
---|
[1843] | 5413 | if (0) CompressViewCells();
|
---|
[859] | 5414 |
|
---|
[1486] | 5415 | /////////////
|
---|
| 5416 | //-- some tasks still to do on the view cells:
|
---|
| 5417 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1696] | 5418 |
|
---|
[1021] | 5419 | if (1) FinalizeViewCells(true);
|
---|
| 5420 |
|
---|
| 5421 | return 0;
|
---|
[859] | 5422 | }
|
---|
| 5423 |
|
---|
[1021] | 5424 |
|
---|
| 5425 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5426 | {
|
---|
[1021] | 5427 | return VSP_OSP;
|
---|
| 5428 | }
|
---|
[859] | 5429 |
|
---|
[1021] | 5430 |
|
---|
| 5431 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5432 | {
|
---|
| 5433 | // terminate recursion
|
---|
| 5434 | if (root->IsLeaf())
|
---|
| 5435 | {
|
---|
| 5436 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5437 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5438 | return leaf->GetViewCell();
|
---|
| 5439 | }
|
---|
| 5440 |
|
---|
| 5441 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5442 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5443 |
|
---|
| 5444 | // evaluate merge cost for priority traversal
|
---|
[1713] | 5445 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1021] | 5446 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5447 |
|
---|
| 5448 | float volume = 0;
|
---|
| 5449 |
|
---|
| 5450 | VspNode *front = interior->GetFront();
|
---|
| 5451 | VspNode *back = interior->GetBack();
|
---|
| 5452 |
|
---|
| 5453 | ObjectPvs frontPvs, backPvs;
|
---|
| 5454 |
|
---|
[1545] | 5455 | /////////
|
---|
[1021] | 5456 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5457 |
|
---|
[1021] | 5458 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5459 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5460 |
|
---|
| 5461 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5462 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5463 |
|
---|
| 5464 | volume += backVc->GetVolume();
|
---|
| 5465 | volume += frontVc->GetVolume();
|
---|
| 5466 |
|
---|
| 5467 | viewCellInterior->SetVolume(volume);
|
---|
| 5468 |
|
---|
| 5469 | return viewCellInterior;
|
---|
| 5470 | }
|
---|
| 5471 |
|
---|
| 5472 |
|
---|
| 5473 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5474 | {
|
---|
| 5475 | if (!ViewCellsConstructed())
|
---|
| 5476 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5477 |
|
---|
| 5478 | // TODO: set reasonable limit
|
---|
| 5479 | const int limit = 20;
|
---|
| 5480 |
|
---|
| 5481 | for (int i = 0; i < limit; ++ i)
|
---|
| 5482 | {
|
---|
| 5483 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5484 |
|
---|
[1278] | 5485 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5486 | {
|
---|
| 5487 | return true;
|
---|
| 5488 | }
|
---|
[904] | 5489 | }
|
---|
[859] | 5490 |
|
---|
[1021] | 5491 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5492 | return false;
|
---|
[884] | 5493 | }
|
---|
| 5494 |
|
---|
| 5495 |
|
---|
[1027] | 5496 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5497 | ViewCell *vc,
|
---|
[1416] | 5498 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5499 | const AxisAlignedPlane *clipPlane
|
---|
| 5500 | ) const
|
---|
[1027] | 5501 | {
|
---|
| 5502 | ViewCellContainer leaves;
|
---|
| 5503 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5504 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5505 |
|
---|
[1047] | 5506 | Plane3 plane;
|
---|
| 5507 | if (clipPlane)
|
---|
[1418] | 5508 | {
|
---|
| 5509 | // arbitrary plane definition
|
---|
[1047] | 5510 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5511 | }
|
---|
[1047] | 5512 |
|
---|
[1027] | 5513 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5514 | {
|
---|
| 5515 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5516 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5517 |
|
---|
[1416] | 5518 | const AxisAlignedBox3 box =
|
---|
[1551] | 5519 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5520 |
|
---|
[1418] | 5521 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5522 | continue;
|
---|
| 5523 |
|
---|
[1047] | 5524 | if (clipPlane)
|
---|
| 5525 | {
|
---|
| 5526 | if (box.Side(plane) == -1)
|
---|
[1144] | 5527 | {
|
---|
[1047] | 5528 | exporter->ExportBox(box);
|
---|
[1144] | 5529 | }
|
---|
[1047] | 5530 | else if (box.Side(plane) == 0)
|
---|
| 5531 | {
|
---|
[1418] | 5532 | // intersection
|
---|
[1047] | 5533 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5534 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5535 | exporter->ExportBox(bbox);
|
---|
| 5536 | }
|
---|
| 5537 | }
|
---|
| 5538 | else
|
---|
| 5539 | {
|
---|
[1027] | 5540 | exporter->ExportBox(box);
|
---|
[1047] | 5541 | }
|
---|
[1027] | 5542 | }
|
---|
| 5543 | }
|
---|
| 5544 |
|
---|
| 5545 |
|
---|
[1021] | 5546 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5547 | {
|
---|
| 5548 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5549 | // validy update in preprocessor for all managers)
|
---|
| 5550 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5551 |
|
---|
[1021] | 5552 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5553 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5554 | }
|
---|
| 5555 |
|
---|
| 5556 |
|
---|
| 5557 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5558 | const VssRayContainer &sampleRays)
|
---|
[859] | 5559 | {
|
---|
[997] | 5560 | if (!ViewCellsConstructed())
|
---|
| 5561 | return;
|
---|
[1027] | 5562 |
|
---|
[1021] | 5563 | VssRayContainer visRays;
|
---|
| 5564 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5565 |
|
---|
[1633] | 5566 | ////////////
|
---|
| 5567 | //-- export final view cells
|
---|
[1106] | 5568 |
|
---|
[1633] | 5569 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5570 |
|
---|
[1830] | 5571 | Vector3 scale(0.9f, 0.9f, 0.9f);
|
---|
| 5572 | //Vector3 scale(1.0f, 1.0f, 1.0f);
|
---|
[1789] | 5573 |
|
---|
[1633] | 5574 | if (exporter)
|
---|
| 5575 | {
|
---|
[1764] | 5576 | if (CLAMP_TO_BOX)
|
---|
| 5577 | {
|
---|
| 5578 | exporter->mClampToBox = true;
|
---|
| 5579 | }
|
---|
| 5580 |
|
---|
[1763] | 5581 | EvaluateViewCellsStats();
|
---|
| 5582 |
|
---|
[1633] | 5583 | const long starttime = GetTime();
|
---|
| 5584 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[1420] | 5585 |
|
---|
[1633] | 5586 | // matt: hack for clamping scene
|
---|
| 5587 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
[1763] | 5588 | bbox.Scale(scale);
|
---|
[1703] | 5589 |
|
---|
[1633] | 5590 | if (1 && mExportRays)
|
---|
| 5591 | {
|
---|
| 5592 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5593 | }
|
---|
| 5594 |
|
---|
[1760] | 5595 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects,
|
---|
| 5596 | CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
[1763] | 5597 |
|
---|
[1764] | 5598 | // hack color code (show pvs size)
|
---|
| 5599 | const int savedColorCode = mColorCode;
|
---|
| 5600 | mColorCode = 1; // export pvs
|
---|
| 5601 |
|
---|
[1763] | 5602 | //ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, mColorCode, GetClipPlane());
|
---|
| 5603 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1633] | 5604 |
|
---|
| 5605 | delete exporter;
|
---|
[1760] | 5606 |
|
---|
[1633] | 5607 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5608 | mColorCode = savedColorCode;
|
---|
| 5609 | }
|
---|
| 5610 |
|
---|
[1633] | 5611 | // export final object partition
|
---|
| 5612 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5613 |
|
---|
| 5614 | if (exporter)
|
---|
[1287] | 5615 | {
|
---|
[1764] | 5616 | if (CLAMP_TO_BOX)
|
---|
| 5617 | {
|
---|
| 5618 | exporter->mClampToBox = true;
|
---|
| 5619 | }
|
---|
| 5620 |
|
---|
[1633] | 5621 | const long starttime = GetTime();
|
---|
[1287] | 5622 |
|
---|
[1633] | 5623 | // matt: hack for making visualization smaller in size
|
---|
| 5624 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
[1763] | 5625 | bbox.Scale(scale);
|
---|
[1415] | 5626 |
|
---|
[1633] | 5627 | cout << "exporting object space hierarchy ... ";
|
---|
| 5628 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5629 |
|
---|
| 5630 | delete exporter;
|
---|
| 5631 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5632 | }
|
---|
[1121] | 5633 |
|
---|
[1760] | 5634 | // visualization of the view cells
|
---|
[1763] | 5635 | if (0)
|
---|
[1760] | 5636 | {
|
---|
| 5637 | ExportMergedViewCells(objects);
|
---|
| 5638 | }
|
---|
| 5639 |
|
---|
[1841] | 5640 | // export some view cells
|
---|
[1021] | 5641 | int leafOut;
|
---|
| 5642 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1769] | 5643 |
|
---|
| 5644 | const bool sortViewCells = false;
|
---|
| 5645 | const bool exportPvs = true;
|
---|
| 5646 | const bool exportRays = true;
|
---|
[1570] | 5647 | const int raysOut = 100;
|
---|
[580] | 5648 |
|
---|
[1769] | 5649 | ExportSingleViewCells(objects,
|
---|
| 5650 | leafOut,
|
---|
| 5651 | sortViewCells,
|
---|
| 5652 | exportPvs,
|
---|
| 5653 | exportRays,
|
---|
| 5654 | raysOut,
|
---|
| 5655 | "");
|
---|
[1570] | 5656 | }
|
---|
[1021] | 5657 |
|
---|
| 5658 |
|
---|
[1570] | 5659 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5660 | const int maxViewCells,
|
---|
| 5661 | const bool sortViewCells,
|
---|
| 5662 | const bool exportPvs,
|
---|
| 5663 | const bool exportRays,
|
---|
| 5664 | const int maxRays,
|
---|
| 5665 | const string prefix,
|
---|
| 5666 | VssRayContainer *visRays)
|
---|
| 5667 | {
|
---|
| 5668 | if (sortViewCells)
|
---|
[697] | 5669 | {
|
---|
[1415] | 5670 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1789] | 5671 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1021] | 5672 | }
|
---|
| 5673 |
|
---|
[1570] | 5674 | ViewCell::NewMail();
|
---|
| 5675 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 5676 |
|
---|
[1570] | 5677 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 5678 |
|
---|
[1021] | 5679 | for (int i = 0; i < limit; ++ i)
|
---|
| 5680 | {
|
---|
| 5681 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5682 |
|
---|
| 5683 | // largest view cell pvs first of random view cell
|
---|
[1570] | 5684 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 5685 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5686 |
|
---|
[1887] | 5687 | if (vc->Mailed()) // view cell already processed
|
---|
[1570] | 5688 | continue;
|
---|
| 5689 |
|
---|
| 5690 | vc->Mail();
|
---|
| 5691 |
|
---|
[1021] | 5692 | ObjectPvs pvs;
|
---|
| 5693 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5694 |
|
---|
[1570] | 5695 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 5696 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5697 |
|
---|
[1709] | 5698 | cout << "view cell " << vc->GetId() << ": pvs cost=" << mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[1021] | 5699 |
|
---|
[1570] | 5700 | if (exportPvs)
|
---|
| 5701 | {
|
---|
| 5702 | Material m;
|
---|
[1418] | 5703 |
|
---|
[1570] | 5704 | Intersectable::NewMail();
|
---|
| 5705 |
|
---|
[1742] | 5706 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 5707 |
|
---|
[1570] | 5708 | // output PVS of view cell
|
---|
[1742] | 5709 | while (pit.HasMoreEntries())
|
---|
[1570] | 5710 | {
|
---|
[1742] | 5711 | ObjectPvsEntry entry = pit.Next();
|
---|
| 5712 |
|
---|
| 5713 | Intersectable *intersect = entry.mObject;
|
---|
| 5714 |
|
---|
[1570] | 5715 | if (!intersect->Mailed())
|
---|
| 5716 | {
|
---|
| 5717 | m = RandomMaterial();
|
---|
| 5718 | exporter->SetForcedMaterial(m);
|
---|
| 5719 |
|
---|
| 5720 | exporter->ExportIntersectable(intersect);
|
---|
| 5721 | intersect->Mail();
|
---|
| 5722 | }
|
---|
| 5723 | }
|
---|
| 5724 | }
|
---|
| 5725 |
|
---|
| 5726 | if (exportRays)
|
---|
[1021] | 5727 | {
|
---|
[1570] | 5728 | ////////////
|
---|
| 5729 | //-- export the sample rays
|
---|
| 5730 |
|
---|
[1021] | 5731 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 5732 | VssRayContainer vcRays;
|
---|
| 5733 | VssRayContainer collectRays;
|
---|
[1021] | 5734 |
|
---|
[1570] | 5735 | // collect intial view cells
|
---|
| 5736 | ViewCellContainer leaves;
|
---|
| 5737 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 5738 |
|
---|
[1570] | 5739 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 5740 |
|
---|
[1570] | 5741 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5742 | {
|
---|
| 5743 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5744 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5745 |
|
---|
| 5746 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 5747 | {
|
---|
[1570] | 5748 | collectRays.push_back(*rit);
|
---|
[1021] | 5749 | }
|
---|
[1570] | 5750 | }
|
---|
[1021] | 5751 |
|
---|
[1570] | 5752 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 5753 |
|
---|
[1570] | 5754 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 5755 |
|
---|
[1570] | 5756 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5757 | {
|
---|
| 5758 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5759 |
|
---|
| 5760 | if (p < raysOut)
|
---|
| 5761 | vcRays.push_back(*rit);
|
---|
[1021] | 5762 | }
|
---|
[1570] | 5763 |
|
---|
| 5764 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 5765 | }
|
---|
[1570] | 5766 |
|
---|
| 5767 |
|
---|
[1415] | 5768 | /////////////////
|
---|
[1021] | 5769 | //-- export view cell geometry
|
---|
[1121] | 5770 |
|
---|
[697] | 5771 | exporter->SetWireframe();
|
---|
| 5772 |
|
---|
[1416] | 5773 | Material m;
|
---|
[1021] | 5774 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5775 | exporter->SetForcedMaterial(m);
|
---|
| 5776 |
|
---|
[1416] | 5777 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5778 | exporter->SetFilled();
|
---|
| 5779 |
|
---|
[1021] | 5780 | DEL_PTR(exporter);
|
---|
| 5781 | cout << "finished" << endl;
|
---|
[697] | 5782 | }
|
---|
[1021] | 5783 |
|
---|
[1570] | 5784 | cout << endl;
|
---|
[697] | 5785 | }
|
---|
| 5786 |
|
---|
| 5787 |
|
---|
[1021] | 5788 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5789 | ViewCellContainer &viewCells) const
|
---|
| 5790 | {
|
---|
[1278] | 5791 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5792 | }
|
---|
[580] | 5793 |
|
---|
[1021] | 5794 |
|
---|
| 5795 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5796 | const Vector3 &termination,
|
---|
| 5797 | ViewCellContainer &viewcells)
|
---|
| 5798 | {
|
---|
[1278] | 5799 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5800 | }
|
---|
| 5801 |
|
---|
| 5802 |
|
---|
| 5803 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5804 | const bool exportPvs,
|
---|
| 5805 | const ObjectContainer &objects)
|
---|
| 5806 | {
|
---|
| 5807 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5808 | return false;
|
---|
| 5809 |
|
---|
[1415] | 5810 | const long starttime = GetTime();
|
---|
[1021] | 5811 | cout << "exporting view cells to xml ... ";
|
---|
| 5812 |
|
---|
[1201] | 5813 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5814 |
|
---|
| 5815 | // for output we need unique ids for each view cell
|
---|
| 5816 | CreateUniqueViewCellIds();
|
---|
| 5817 |
|
---|
| 5818 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5819 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5820 |
|
---|
[1843] | 5821 | // §§ tmp matt: for storage cost
|
---|
| 5822 | if (0 && exportPvs)
|
---|
[1580] | 5823 | {
|
---|
| 5824 | ///////////////
|
---|
| 5825 | //-- export bounding boxes
|
---|
| 5826 | //-- The bounding boxes are used to identify
|
---|
| 5827 | //-- the objects in the rendering engine
|
---|
[1614] | 5828 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 5829 | }
|
---|
[1021] | 5830 |
|
---|
[1415] | 5831 | //////////////////////////
|
---|
[1021] | 5832 | //-- export the view cells and the pvs
|
---|
| 5833 |
|
---|
| 5834 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5835 |
|
---|
| 5836 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5837 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5838 | stream << "</ViewCells>" << endl;
|
---|
| 5839 |
|
---|
[1415] | 5840 | //////////////////////
|
---|
[1201] | 5841 | //-- export the view space hierarchy
|
---|
[1021] | 5842 |
|
---|
[1262] | 5843 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5844 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5845 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5846 |
|
---|
[1278] | 5847 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5848 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5849 |
|
---|
[1415] | 5850 | //////////////////////
|
---|
[1201] | 5851 | //-- export the object space partition
|
---|
| 5852 |
|
---|
[1278] | 5853 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5854 |
|
---|
[1201] | 5855 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5856 | stream.close();
|
---|
[1201] | 5857 |
|
---|
[1415] | 5858 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5859 | return true;
|
---|
| 5860 | }
|
---|
| 5861 |
|
---|
| 5862 |
|
---|
| 5863 |
|
---|
[1027] | 5864 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5865 | const bool active) const
|
---|
[1021] | 5866 | {
|
---|
| 5867 | if (!ViewCellsConstructed())
|
---|
| 5868 | return NULL;
|
---|
[1588] | 5869 |
|
---|
[1021] | 5870 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5871 | return NULL;
|
---|
[1588] | 5872 |
|
---|
[1278] | 5873 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5874 | }
|
---|
| 5875 |
|
---|
| 5876 |
|
---|
| 5877 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5878 | {
|
---|
| 5879 | // matt: TODO
|
---|
| 5880 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5881 |
|
---|
| 5882 | ViewCellContainer leaves;
|
---|
| 5883 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5884 |
|
---|
| 5885 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5886 |
|
---|
| 5887 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5888 | {
|
---|
[1551] | 5889 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 5890 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5891 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5892 | }
|
---|
| 5893 |
|
---|
[1021] | 5894 | vc->SetMesh(mesh);
|
---|
| 5895 | }
|
---|
| 5896 |
|
---|
| 5897 |
|
---|
| 5898 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5899 | {
|
---|
| 5900 | // matt: TODO
|
---|
| 5901 | return 0;
|
---|
| 5902 | }
|
---|
| 5903 |
|
---|
| 5904 |
|
---|
[1667] | 5905 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
[1021] | 5906 | {
|
---|
| 5907 | float area = 0;
|
---|
| 5908 | float volume = 0;
|
---|
| 5909 |
|
---|
| 5910 | ViewCellContainer leaves;
|
---|
| 5911 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5912 |
|
---|
| 5913 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5914 |
|
---|
| 5915 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5916 | {
|
---|
[1551] | 5917 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 5918 |
|
---|
[1278] | 5919 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 5920 |
|
---|
[1027] | 5921 | const float lVol = box.GetVolume();
|
---|
| 5922 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5923 |
|
---|
| 5924 | area += lArea;
|
---|
| 5925 | volume += lVol;
|
---|
| 5926 |
|
---|
| 5927 | CreateMesh(*it);
|
---|
[580] | 5928 | }
|
---|
| 5929 |
|
---|
[1021] | 5930 | viewCell->SetVolume(volume);
|
---|
| 5931 | viewCell->SetArea(area);
|
---|
[580] | 5932 | }
|
---|
| 5933 |
|
---|
[1876] | 5934 |
|
---|
[1021] | 5935 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5936 | {
|
---|
| 5937 | // TODO
|
---|
| 5938 | }
|
---|
[580] | 5939 |
|
---|
[1201] | 5940 |
|
---|
[1889] | 5941 | static void PrintCompressionStats(HierarchyManager *hm, const int pvsEntries)
|
---|
| 5942 | {
|
---|
| 5943 | float mem = (float)pvsEntries * ObjectPvs::GetEntrySize();
|
---|
| 5944 |
|
---|
| 5945 | float fullmem = mem +
|
---|
| 5946 | (hm->GetVspTree()->GetStatistics().Leaves() * 16 +
|
---|
| 5947 | hm->mBvHierarchy->GetStatistics().Leaves() * 16) / float(1024 * 1024);
|
---|
| 5948 |
|
---|
| 5949 | cout << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
| 5950 | Debug << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
| 5951 | }
|
---|
| 5952 |
|
---|
| 5953 |
|
---|
[1845] | 5954 | void VspOspViewCellsManager::CompressViewCells()
|
---|
| 5955 | {
|
---|
[1889] | 5956 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
[1887] | 5957 | return;
|
---|
| 5958 |
|
---|
[1845] | 5959 | ////////////
|
---|
| 5960 | //-- compression
|
---|
| 5961 |
|
---|
[1889] | 5962 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 5963 |
|
---|
| 5964 | cout << "before compression: " << endl;
|
---|
| 5965 | Debug << "before compression: " << endl;
|
---|
| 5966 |
|
---|
| 5967 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
| 5968 |
|
---|
| 5969 | if (mCompressObjects)
|
---|
[1845] | 5970 | {
|
---|
[1889] | 5971 | cout << "compressing in the objects: " << endl;
|
---|
| 5972 | Debug << "compressing in the objects: " << endl;
|
---|
[1845] | 5973 |
|
---|
| 5974 | pvsEntries = mHierarchyManager->CompressObjectSpace();
|
---|
[1889] | 5975 | }
|
---|
| 5976 | else
|
---|
| 5977 | {
|
---|
| 5978 | cout << "compressing in the view space: " << endl;
|
---|
| 5979 | Debug << "compressing in the view space: " << endl;
|
---|
[1846] | 5980 |
|
---|
[1889] | 5981 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
| 5982 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1845] | 5983 | }
|
---|
[1889] | 5984 |
|
---|
| 5985 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
[1845] | 5986 | }
|
---|
| 5987 |
|
---|
| 5988 |
|
---|
[1201] | 5989 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5990 | ObjectContainer *objects,
|
---|
| 5991 | const bool finalizeViewCells,
|
---|
| 5992 | BoundingBoxConverter *bconverter)
|
---|
| 5993 |
|
---|
| 5994 | {
|
---|
| 5995 | ViewCellsManager *vm =
|
---|
| 5996 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 5997 | #if 0
|
---|
| 5998 | // insert scene objects in tree
|
---|
[1201] | 5999 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 6000 | #endif
|
---|
[1201] | 6001 | return vm;
|
---|
| 6002 | }
|
---|
| 6003 |
|
---|
[1889] | 6004 |
|
---|
[1737] | 6005 | void
|
---|
| 6006 | VspOspViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
|
---|
| 6007 | {
|
---|
| 6008 | mHierarchyManager->CollectObjects(box, objects);
|
---|
| 6009 | }
|
---|
[1692] | 6010 |
|
---|
[1737] | 6011 |
|
---|
[1709] | 6012 | #if 1
|
---|
[1180] | 6013 |
|
---|
[1686] | 6014 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 6015 | {
|
---|
| 6016 | int samplesPerPass;
|
---|
| 6017 | int numSamples;
|
---|
| 6018 | int castSamples = 0;
|
---|
[1718] | 6019 | int oldSamples = 0;
|
---|
| 6020 | int samplesForStats;
|
---|
| 6021 | char statsPrefix[100];
|
---|
| 6022 | char suffix[100];
|
---|
[1713] | 6023 | int splitsStepSize;
|
---|
[1686] | 6024 |
|
---|
| 6025 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1718] | 6026 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1686] | 6027 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 6028 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[1718] | 6029 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.stepSize", splitsStepSize);
|
---|
| 6030 |
|
---|
| 6031 | Debug << "step size: " << splitsStepSize << endl;
|
---|
[1686] | 6032 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 6033 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 6034 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 6035 |
|
---|
[1773] | 6036 | cout << "reseting pvs ... ";
|
---|
[1686] | 6037 |
|
---|
| 6038 | // reset pvs and start over from zero
|
---|
[1718] | 6039 | mViewCellsTree->ResetPvs();
|
---|
| 6040 |
|
---|
[1686] | 6041 | cout << "finished" << endl;
|
---|
| 6042 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 6043 |
|
---|
[1811] | 6044 | vector<int> evalStrats;
|
---|
| 6045 |
|
---|
| 6046 | // mix of sampling strategies
|
---|
[1825] | 6047 | if (1)
|
---|
[1811] | 6048 | {
|
---|
| 6049 | evalStrats.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
[1830] | 6050 | //evalStrats.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 6051 | evalStrats.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
|
---|
[1811] | 6052 | evalStrats.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 6053 | }
|
---|
[1903] | 6054 |
|
---|
[1826] | 6055 | Debug << "casting eval strategies: ";
|
---|
| 6056 | for (int i = 0; i < (int)evalStrats.size(); ++ i)
|
---|
| 6057 | Debug << evalStrats[i] << " ";
|
---|
| 6058 | Debug << endl;
|
---|
[1811] | 6059 |
|
---|
[1843] | 6060 | cout << "casting eval strategies: ";
|
---|
| 6061 | for (int i = 0; i < (int)evalStrats.size(); ++ i)
|
---|
| 6062 | cout << evalStrats[i] << " ";
|
---|
| 6063 | cout << endl;
|
---|
| 6064 |
|
---|
[1686] | 6065 | while (castSamples < numSamples)
|
---|
| 6066 | {
|
---|
| 6067 | ///////////////
|
---|
| 6068 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 6069 |
|
---|
[1718] | 6070 | VssRayContainer evaluationSamples;
|
---|
[1686] | 6071 | const int samplingType = mEvaluationSamplingType;
|
---|
| 6072 |
|
---|
| 6073 | long startTime = GetTime();
|
---|
| 6074 |
|
---|
| 6075 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 6076 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
[1778] | 6077 |
|
---|
[1903] | 6078 | if (1)
|
---|
| 6079 | {
|
---|
| 6080 | CastPassSamples(samplesPerPass, evalStrats, evaluationSamples);
|
---|
| 6081 | }
|
---|
| 6082 | else
|
---|
| 6083 | {
|
---|
| 6084 | // use mixed distributions
|
---|
| 6085 | CastPassSamples2(samplesPerPass, evaluationSamples);
|
---|
| 6086 | }
|
---|
| 6087 |
|
---|
[1686] | 6088 | castSamples += samplesPerPass;
|
---|
| 6089 |
|
---|
| 6090 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1718] | 6091 |
|
---|
| 6092 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6093 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1718] | 6094 |
|
---|
| 6095 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6096 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 6097 |
|
---|
| 6098 | startTime = GetTime();
|
---|
| 6099 |
|
---|
| 6100 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 6101 |
|
---|
| 6102 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6103 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6104 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6105 |
|
---|
[1758] | 6106 | if ((castSamples >= samplesForStats + oldSamples) ||
|
---|
| 6107 | (castSamples >= numSamples))
|
---|
[1718] | 6108 | {
|
---|
| 6109 | oldSamples += samplesForStats;
|
---|
[1686] | 6110 |
|
---|
[1718] | 6111 | ///////////
|
---|
| 6112 | //-- output stats
|
---|
[1686] | 6113 |
|
---|
[1718] | 6114 | sprintf(suffix, "-%09d-eval.log", castSamples);
|
---|
| 6115 | const string filename = string(statsPrefix) + string(suffix);
|
---|
[1710] | 6116 |
|
---|
[1718] | 6117 | startTime = GetTime();
|
---|
[1732] | 6118 |
|
---|
[1718] | 6119 | cout << "compute new statistics ... " << endl;
|
---|
[1710] | 6120 |
|
---|
[1718] | 6121 | ofstream ofstr(filename.c_str());
|
---|
[1745] | 6122 | mHierarchyManager->EvaluateSubdivision2(ofstr, splitsStepSize, false);
|
---|
[1718] | 6123 |
|
---|
| 6124 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6125 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1732] | 6126 | cout << "*************************************" << endl;
|
---|
| 6127 |
|
---|
[1718] | 6128 | Debug << "statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6129 |
|
---|
[1750] | 6130 | #if 0
|
---|
[1787] | 6131 | //////////////
|
---|
[1745] | 6132 | // filtered stats
|
---|
[1790] | 6133 |
|
---|
[1745] | 6134 | sprintf(suffix, "-%09d-eval-filter.log", castSamples);
|
---|
| 6135 | const string filename2 = string(statsPrefix) + string(suffix);
|
---|
| 6136 |
|
---|
| 6137 | startTime = GetTime();
|
---|
| 6138 |
|
---|
| 6139 | cout << "compute new statistics for filtered pvs ... " << endl;
|
---|
| 6140 |
|
---|
| 6141 | ofstream ofstr2(filename2.c_str());
|
---|
| 6142 | mHierarchyManager->EvaluateSubdivision2(ofstr2, splitsStepSize, true);
|
---|
| 6143 |
|
---|
| 6144 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6145 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6146 | cout << "*************************************" << endl;
|
---|
[1787] | 6147 | Debug << "filtered statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1745] | 6148 | #endif
|
---|
| 6149 |
|
---|
[1718] | 6150 | // only for debugging purpose
|
---|
[1732] | 6151 | if (0)
|
---|
[1718] | 6152 | {
|
---|
| 6153 | ViewCellContainer viewCells;
|
---|
| 6154 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), viewCells);
|
---|
| 6155 |
|
---|
| 6156 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
| 6157 | int pvsSize = 0;
|
---|
| 6158 |
|
---|
| 6159 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 6160 | {
|
---|
| 6161 | pvsSize += (*vit)->GetPvs().GetSize();
|
---|
| 6162 | }
|
---|
| 6163 |
|
---|
[1787] | 6164 | cout << "debug entries: " << pvsSize << ", memcost: "
|
---|
| 6165 | << (float)pvsSize * ObjectPvs::GetEntrySize() << endl;
|
---|
[1718] | 6166 | }
|
---|
| 6167 | }
|
---|
| 6168 |
|
---|
[1709] | 6169 | disposeRays(evaluationSamples, NULL);
|
---|
[1686] | 6170 | }
|
---|
[1718] | 6171 |
|
---|
[1686] | 6172 | }
|
---|
[1551] | 6173 | #endif
|
---|
[1786] | 6174 |
|
---|
| 6175 |
|
---|
| 6176 |
|
---|
| 6177 | }
|
---|