[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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[1486] | 28 |
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[1900] | 29 | #define USE_RAY_LENGTH_AS_CONTRIBUTION 0
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[1931] | 30 | #define DIST_WEIGHTED_CONTRIBUTION 0
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[1942] | 31 | #define SUM_RAY_CONTRIBUTIONS 1
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| 32 | #define AVG_RAY_CONTRIBUTIONS 0
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| 33 | #define CONTRIBUTION_RELATIVE_TO_PVS_SIZE 0
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[1932] | 34 | #define PVS_ADD_DIRTY 1
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[1900] | 35 |
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[863] | 36 | namespace GtpVisibilityPreprocessor {
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[860] | 37 |
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| 38 |
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[712] | 39 | // HACK
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| 40 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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[1764] | 41 | //const static bool CLAMP_TO_BOX = false;
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| 42 | const static bool CLAMP_TO_BOX = true;
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[517] | 43 |
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[1705] | 44 |
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[1703] | 45 | int ViewCellsManager::sRenderCostEvaluationType = 0;
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| 46 |
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| 47 |
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[697] | 48 | template <typename T> class myless
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| 49 | {
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| 50 | public:
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| 51 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 52 | bool operator() (T v1, T v2) const
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| 53 | {
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| 54 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 55 | }
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| 56 | };
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| 57 |
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| 58 |
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[1264] | 59 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 60 | mRenderer(NULL),
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[574] | 61 | mInitialSamples(0),
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[440] | 62 | mConstructionSamples(0),
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| 63 | mPostProcessSamples(0),
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[470] | 64 | mVisualizationSamples(0),
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| 65 | mTotalAreaValid(false),
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[517] | 66 | mTotalArea(0.0f),
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[547] | 67 | mViewCellsFinished(false),
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[562] | 68 | mMaxPvsSize(9999999),
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[1686] | 69 | mMinPvsSize(0),
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[719] | 70 | mMaxPvsRatio(1.0),
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[1145] | 71 | mViewCellPvsIsUpdated(false),
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[1264] | 72 | mPreprocessor(NULL),
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[1545] | 73 | mViewCellsTree(viewCellsTree),
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| 74 | mUsePredefinedViewCells(false)
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[440] | 75 | {
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[542] | 76 | mViewSpaceBox.Initialize();
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[482] | 77 | ParseEnvironment();
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[580] | 78 |
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[1264] | 79 | mViewCellsTree->SetViewCellsManager(this);
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[1983] | 80 | mSamplesStat.Reset();
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[440] | 81 | }
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| 82 |
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[517] | 83 |
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[1932] | 84 | int ViewCellsManager::CastPassSamples2(const int samplesPerPass,
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| 85 | VssRayContainer &passSamples) const
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[1903] | 86 | {
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| 87 | long startTime = GetTime();
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| 88 |
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| 89 | SimpleRayContainer simpleRays;
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| 90 |
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| 91 | simpleRays.reserve(samplesPerPass);
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| 92 | passSamples.reserve(samplesPerPass * 2); // always creates double rays
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| 93 |
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| 94 | // create one third of each type
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| 95 | int castRays = 0;
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| 96 |
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| 97 | mMixtureDistribution->GenerateSamples(mSamplesPerPass, simpleRays);
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| 98 |
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[1949] | 99 | cout << "generated " << (int)simpleRays.size() << " samples in "
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[1903] | 100 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 101 |
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| 102 | startTime = GetTime();
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| 103 |
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| 104 | // shoot simple ray and add it to importance samples
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| 105 | mPreprocessor->CastRays(simpleRays, passSamples, true);
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| 106 |
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| 107 | cout << "cast " << samplesPerPass << " samples in "
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| 108 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 109 |
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| 110 | mMixtureDistribution->ComputeContributions(passSamples);
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| 111 |
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| 112 | return (int)passSamples.size();
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| 113 | }
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| 114 |
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| 115 |
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[482] | 116 | void ViewCellsManager::ParseEnvironment()
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| 117 | {
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[503] | 118 | // visualization stuff
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[1761] | 119 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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[1004] | 120 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 121 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 122 |
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[1004] | 123 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 124 |
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[1004] | 125 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 126 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 127 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 128 |
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[1004] | 129 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 130 |
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[1004] | 131 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 132 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 133 |
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[1004] | 134 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 135 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 136 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 137 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 138 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 139 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 140 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 141 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[1703] | 142 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", sRenderCostEvaluationType);
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[710] | 143 |
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[1004] | 144 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 145 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1902] | 146 |
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| 147 | Environment::GetSingleton()->GetBoolValue("ViewCells.useKdPvs", mUseKdPvs);
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| 148 |
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[664] | 149 | char buf[100];
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[1004] | 150 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 151 |
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[1773] | 152 | // mix of sampling strategies
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[1919] | 153 | if (0)
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| 154 | {
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| 155 | mStrategies.push_back(SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION);
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| 156 | }
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| 157 | else
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| 158 | {
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| 159 | /*mStrategies.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
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| 160 | mStrategies.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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| 161 | mStrategies.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
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| 162 | */
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| 163 |
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| 164 | mStrategies.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
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| 165 | }
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[1910] | 166 |
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[1826] | 167 | Debug << "casting strategies: ";
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| 168 | for (int i = 0; i < (int)mStrategies.size(); ++ i)
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| 169 | Debug << mStrategies[i] << " ";
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| 170 | Debug << endl;
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| 171 |
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[1903] | 172 | // now decode distribution string
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| 173 | char buff[1024];
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| 174 | Environment::GetSingleton()->GetStringValue("RssPreprocessor.distributions", buff);
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| 175 |
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| 176 | mMixtureDistribution = new MixtureDistribution(*mPreprocessor);
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| 177 | mMixtureDistribution->Construct(buff);
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| 178 |
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| 179 |
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[1020] | 180 | // sampling type for view cells construction samples
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[1695] | 181 | if (strcmp(buf, "object") == 0)
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[722] | 182 | {
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[1695] | 183 | mSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 184 | }
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| 185 | else if (strcmp(buf, "box") == 0)
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| 186 | {
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[1520] | 187 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 188 | }
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[664] | 189 | else if (strcmp(buf, "directional") == 0)
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[722] | 190 | {
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[1520] | 191 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 192 | }
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[1020] | 193 | else if (strcmp(buf, "object_directional") == 0)
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| 194 | {
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[1520] | 195 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 196 | }
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[1695] | 197 | else if (strcmp(buf, "reverse_object") == 0)
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| 198 | {
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| 199 | mSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 200 | }
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[1022] | 201 | /*else if (strcmp(buf, "interior") == 0)
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| 202 | {
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| 203 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 204 | }*/
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[1020] | 205 | else
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| 206 | {
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[666] | 207 | Debug << "error! wrong sampling type" << endl;
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| 208 | exit(0);
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| 209 | }
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[660] | 210 |
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[1020] | 211 | // sampling type for evaluation samples
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[1004] | 212 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 213 |
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[1695] | 214 | if (strcmp(buf, "object") == 0)
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[722] | 215 | {
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[1695] | 216 | mEvaluationSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 217 | }
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| 218 | else if (strcmp(buf, "box") == 0)
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| 219 | {
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[1520] | 220 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 221 | }
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| 222 | else if (strcmp(buf, "directional") == 0)
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| 223 | {
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[1520] | 224 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 225 | }
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[1020] | 226 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 227 | {
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[1520] | 228 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 229 | }
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[1695] | 230 | else if (strcmp(buf, "reverse_object") == 0)
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| 231 | {
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| 232 | mEvaluationSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 233 | }
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[1022] | 234 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 235 | {
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[1520] | 236 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 237 | }*/
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[1020] | 238 | else
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| 239 | {
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[1695] | 240 | mEvaluationSamplingType = -1;
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[722] | 241 | Debug << "error! wrong sampling type" << endl;
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| 242 | exit(0);
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| 243 | }
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[503] | 244 |
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[1004] | 245 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 246 |
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[734] | 247 | if (strcmp(buf, "perobject") == 0)
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[728] | 248 | {
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[1703] | 249 | sRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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[728] | 250 | }
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[1703] | 251 | else if (strcmp(buf, "pertriangle") == 0)
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[728] | 252 | {
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[1703] | 253 | sRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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[728] | 254 | }
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| 255 | else
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| 256 | {
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| 257 | Debug << "error! wrong sampling type" << endl;
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| 258 | exit(0);
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| 259 | }
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| 260 |
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[1004] | 261 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 262 |
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[482] | 263 | if (strcmp(buf, "PVS") == 0)
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| 264 | mColorCode = 1;
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| 265 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 266 | mColorCode = 2;
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| 267 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 268 | mColorCode = 3;
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| 269 | else
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| 270 | mColorCode = 0;
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| 271 |
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[664] | 272 |
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[1418] | 273 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 274 | Debug << "color code: " << mColorCode << endl;
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| 275 |
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| 276 | Debug << "export rays: " << mExportRays << endl;
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| 277 | Debug << "export geometry: " << mExportGeometry << endl;
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| 278 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 279 |
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| 280 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 281 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 282 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 283 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 284 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 285 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 286 | Debug << "export to file: " << mExportViewCells << endl;
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| 287 |
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[801] | 288 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 289 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 290 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 291 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 292 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 293 | Debug << "sampling type: " << mSamplingType << endl;
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[1703] | 294 | Debug << "render cost evaluation type: " << sRenderCostEvaluationType << endl;
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[728] | 295 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 296 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 297 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 298 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 299 |
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| 300 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 301 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[1902] | 302 | Debug << "use kd pvs " << mUseKdPvs << endl;
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[664] | 303 | Debug << endl;
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[440] | 304 | }
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| 305 |
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[485] | 306 |
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[440] | 307 | ViewCellsManager::~ViewCellsManager()
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| 308 | {
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[1020] | 309 | // HACK: if view cells tree does not
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[1264] | 310 | // handle view cells, we have to do it here
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[1020] | 311 | // question: rather create view cells resource manager?
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[598] | 312 | if (!ViewCellsTreeConstructed())
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[1141] | 313 | {
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[598] | 314 | CLEAR_CONTAINER(mViewCells);
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[1141] | 315 | }
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[1696] | 316 | else
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| 317 | {
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| 318 | DEL_PTR(mViewCellsTree);
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| 319 | }
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[1903] | 320 |
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| 321 | DEL_PTR(mMixtureDistribution);
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[440] | 322 | }
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| 323 |
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[1903] | 324 |
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[1743] | 325 | Intersectable *
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| 326 | ViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
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| 327 | {
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[1902] | 328 | if (mUseKdPvs)
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| 329 | {
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[1989] | 330 | KdNode *node = GetPreprocessor()->mKdTree->GetPvsNode(isTermination ?
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| 331 | ray.mTermination : ray.mOrigin);
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| 332 | return GetPreprocessor()->mKdTree->GetOrCreateKdIntersectable(node);
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[1902] | 333 | }
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| 334 | else
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[1989] | 335 | {
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[1902] | 336 | return isTermination ? ray.mTerminationObject : ray.mOriginObject;
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[1989] | 337 | }
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[1743] | 338 | }
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[1221] | 339 |
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[1902] | 340 |
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[1737] | 341 | void
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| 342 | ViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
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| 343 | {
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| 344 | GetPreprocessor()->mKdTree->CollectObjects(box, objects);
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| 345 | }
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[1613] | 346 |
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[1221] | 347 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 348 | {
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| 349 | Mesh *m = vc->GetMesh();
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| 350 |
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[1563] | 351 | if (m)
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| 352 | {
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| 353 | m->ComputeBoundingBox();
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| 354 | return m->mBox;
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[859] | 355 | }
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[485] | 356 |
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[859] | 357 | AxisAlignedBox3 box;
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| 358 | box.Initialize();
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| 359 |
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| 360 | if (!vc->IsLeaf()) {
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| 361 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 362 |
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| 363 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 364 | for (; it != vci->mChildren.end(); ++it) {
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| 365 | box.Include(GetViewCellBox(*it));
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| 366 | }
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| 367 | }
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| 368 |
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| 369 | return box;
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| 370 | }
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| 371 |
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[693] | 372 |
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[574] | 373 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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[1768] | 374 | const vector<int> &strategies,
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| 375 | VssRayContainer &passSamples
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| 376 | ) const
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[527] | 377 | {
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[1633] | 378 | long startTime = GetTime();
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[564] | 379 |
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[1784] | 380 | SimpleRayContainer simpleRays;
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| 381 |
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| 382 | simpleRays.reserve(samplesPerPass);
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| 383 | passSamples.reserve(samplesPerPass * 2); // always creates double rays
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| 384 |
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[1701] | 385 | // create one third of each type
|
---|
[1765] | 386 | int castRays = 0;
|
---|
[1701] | 387 |
|
---|
[1765] | 388 | const int numRaysPerPass = samplesPerPass / (int)strategies.size();
|
---|
| 389 | vector<int>::const_iterator iit, iit_end = strategies.end();
|
---|
| 390 |
|
---|
| 391 | for (iit = strategies.begin(); iit != iit_end; ++ iit)
|
---|
| 392 | {
|
---|
[1772] | 393 | const int stype = *iit;
|
---|
[1765] | 394 | const int newRays =
|
---|
| 395 | mPreprocessor->GenerateRays(numRaysPerPass, stype, simpleRays);
|
---|
[1772] | 396 |
|
---|
[1765] | 397 | cout << "cast " << newRays << " rays of strategy " << stype << endl;
|
---|
| 398 | castRays += newRays;
|
---|
[1709] | 399 | }
|
---|
[1701] | 400 |
|
---|
[1784] | 401 | cout << "generated " << samplesPerPass << " samples in "
|
---|
| 402 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1221] | 403 |
|
---|
[1633] | 404 | startTime = GetTime();
|
---|
[1784] | 405 |
|
---|
[573] | 406 | // shoot simple ray and add it to importance samples
|
---|
[1520] | 407 | mPreprocessor->CastRays(simpleRays, passSamples, true);
|
---|
[1784] | 408 | cout << "cast " << samplesPerPass << " samples in "
|
---|
| 409 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[570] | 410 |
|
---|
[574] | 411 | return (int)passSamples.size();
|
---|
| 412 | }
|
---|
[570] | 413 |
|
---|
[574] | 414 |
|
---|
| 415 | /// helper function which destroys rays or copies them into the output ray container
|
---|
[639] | 416 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
[574] | 417 | {
|
---|
| 418 | cout << "disposing samples ... ";
|
---|
[582] | 419 | long startTime = GetTime();
|
---|
| 420 | int n = (int)rays.size();
|
---|
| 421 |
|
---|
[573] | 422 | if (outRays)
|
---|
[542] | 423 | {
|
---|
[574] | 424 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 425 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 426 | {
|
---|
| 427 | outRays->push_back(*it);
|
---|
| 428 | }
|
---|
[573] | 429 | }
|
---|
| 430 | else
|
---|
| 431 | {
|
---|
[639] | 432 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 433 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 434 | {
|
---|
| 435 | if (!(*it)->IsActive())
|
---|
| 436 | delete (*it);
|
---|
| 437 | }
|
---|
[573] | 438 | }
|
---|
[639] | 439 |
|
---|
[574] | 440 | cout << "finished" << endl;
|
---|
[582] | 441 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[573] | 442 | }
|
---|
[570] | 443 |
|
---|
| 444 |
|
---|
[573] | 445 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 446 | {
|
---|
| 447 | int numSamples = 0;
|
---|
[1077] | 448 |
|
---|
[573] | 449 | SimpleRayContainer simpleRays;
|
---|
[574] | 450 | VssRayContainer initialSamples;
|
---|
[540] | 451 |
|
---|
[1381] | 452 | // store pointer to preprocessor for further use during construction
|
---|
| 453 | mPreprocessor = preprocessor;
|
---|
| 454 |
|
---|
[1563] | 455 |
|
---|
[1381] | 456 | ///////////////////////////////////////////////////////
|
---|
| 457 | //-- Initial sampling for the construction of the view cell hierarchy.
|
---|
| 458 | //-- We use uniform sampling / box based sampling.
|
---|
| 459 |
|
---|
[752] | 460 | long startTime = GetTime();
|
---|
[1633] | 461 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
|
---|
[1414] | 462 |
|
---|
[1381] | 463 | // cast initial samples
|
---|
[1778] | 464 |
|
---|
| 465 | // mix of sampling strategies
|
---|
| 466 | vector<int>dummy;
|
---|
| 467 | //dummy.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 468 | //dummy.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 469 | //dummy.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 470 |
|
---|
[1773] | 471 | CastPassSamples(mInitialSamples, mStrategies, initialSamples);
|
---|
[1278] | 472 |
|
---|
[1221] | 473 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 474 |
|
---|
[573] | 475 | // construct view cells
|
---|
[752] | 476 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 477 |
|
---|
[727] | 478 | // initial samples count for overall samples ...
|
---|
[752] | 479 | numSamples += mInitialSamples;
|
---|
[542] | 480 |
|
---|
[574] | 481 | // rays can be passed or deleted
|
---|
[639] | 482 | disposeRays(initialSamples, outRays);
|
---|
[752] | 483 |
|
---|
| 484 | cout << "time needed for initial construction: "
|
---|
| 485 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 486 |
|
---|
| 487 | Debug << "time needed for initial construction: "
|
---|
| 488 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 489 |
|
---|
[1444] | 490 | // collect view cells and compute statistics
|
---|
| 491 | ResetViewCells();
|
---|
[752] | 492 |
|
---|
[1444] | 493 |
|
---|
| 494 | ///////////////////
|
---|
| 495 | //-- Initial hierarchy construction finished.
|
---|
[1381] | 496 | //-- We can do some stats and visualization
|
---|
| 497 |
|
---|
[1444] | 498 | if (0)
|
---|
[660] | 499 | {
|
---|
[1444] | 500 | //-- export initial view cell partition
|
---|
[1563] | 501 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
[1416] | 502 |
|
---|
[1414] | 503 | const string filename("viewcells.wrl");
|
---|
| 504 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
[712] | 505 |
|
---|
[660] | 506 | if (exporter)
|
---|
| 507 | {
|
---|
[1414] | 508 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
| 509 |
|
---|
[660] | 510 | if (mExportGeometry)
|
---|
[712] | 511 | {
|
---|
[660] | 512 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 513 | }
|
---|
[660] | 514 |
|
---|
[750] | 515 | exporter->SetWireframe();
|
---|
[1760] | 516 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[660] | 517 |
|
---|
| 518 | delete exporter;
|
---|
[712] | 519 | cout << "finished" << endl;
|
---|
[660] | 520 | }
|
---|
| 521 | }
|
---|
| 522 |
|
---|
[1381] | 523 |
|
---|
[1419] | 524 | //////////////////////
|
---|
[1381] | 525 | //-- Cast some more sampling after initial construction.
|
---|
| 526 | //-- The additional rays can be used to gain
|
---|
| 527 | //-- some more information before the bottom-up merge
|
---|
| 528 | //-- note: guided rays could be used for this task
|
---|
| 529 |
|
---|
[1414] | 530 | // time spent after construction of the initial partition
|
---|
[1381] | 531 | startTime = GetTime();
|
---|
[574] | 532 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[573] | 533 |
|
---|
| 534 | while (numSamples < n)
|
---|
| 535 | {
|
---|
[596] | 536 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 537 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 538 |
|
---|
[574] | 539 | VssRayContainer constructionSamples;
|
---|
| 540 |
|
---|
[727] | 541 | // cast new samples
|
---|
[574] | 542 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[1773] | 543 | mStrategies,
|
---|
[574] | 544 | constructionSamples);
|
---|
| 545 |
|
---|
| 546 | cout << "finished" << endl;
|
---|
| 547 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 548 |
|
---|
[727] | 549 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 550 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 551 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 552 |
|
---|
[574] | 553 | cout << "finished" << endl;
|
---|
| 554 |
|
---|
[639] | 555 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 556 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 557 | }
|
---|
[752] | 558 |
|
---|
[1563] | 559 | if (0)
|
---|
| 560 | {
|
---|
| 561 | ///////////////
|
---|
| 562 | //-- Get stats after the additional sampling step
|
---|
| 563 | //-- and before the bottom-up merge step
|
---|
[570] | 564 |
|
---|
[1563] | 565 | EvaluateViewCellsStats();
|
---|
| 566 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 567 | << mCurrentViewCellsStats << endl;
|
---|
| 568 |
|
---|
| 569 | mRenderer->RenderScene();
|
---|
| 570 | SimulationStatistics ss;
|
---|
| 571 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 572 |
|
---|
[1563] | 573 | Debug << ss << endl;
|
---|
| 574 | }
|
---|
[660] | 575 |
|
---|
[1416] | 576 | ////////////////////
|
---|
[1381] | 577 | //-- post processing of the initial construction
|
---|
| 578 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 579 | //-- We can additionally cast some post processing sample rays.
|
---|
| 580 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 581 |
|
---|
| 582 | VssRayContainer postProcessSamples;
|
---|
| 583 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 584 |
|
---|
[1773] | 585 | CastPassSamples(mPostProcessSamples, mStrategies, postProcessSamples);
|
---|
[1381] | 586 |
|
---|
| 587 | cout << "finished" << endl;
|
---|
[574] | 588 | cout << "starting post processing and visualization" << endl;
|
---|
| 589 |
|
---|
[1444] | 590 | // store view cells with rays for post processing?
|
---|
[574] | 591 | const bool storeViewCells = true;
|
---|
[605] | 592 |
|
---|
| 593 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 594 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 595 |
|
---|
[1381] | 596 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 597 |
|
---|
[1414] | 598 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 599 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 600 |
|
---|
[1414] | 601 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 602 | disposeRays(postProcessSamples, outRays);
|
---|
| 603 |
|
---|
[1749] | 604 |
|
---|
[1416] | 605 | ////////////////
|
---|
[1381] | 606 | //-- Evaluation of the resulting view cell partition.
|
---|
| 607 | //-- We cast a number of new samples and measure the render cost
|
---|
| 608 |
|
---|
[801] | 609 | if (mEvaluateViewCells)
|
---|
| 610 | {
|
---|
[1145] | 611 | EvalViewCellPartition();
|
---|
[801] | 612 | }
|
---|
[1749] | 613 |
|
---|
[1416] | 614 | /////////////////
|
---|
[1769] | 615 | //-- Show some visualizations
|
---|
[1381] | 616 |
|
---|
[666] | 617 | if (mShowVisualization)
|
---|
| 618 | {
|
---|
[1769] | 619 | if (0)
|
---|
| 620 | {
|
---|
[1773] | 621 | mStrategies.clear();
|
---|
| 622 | mStrategies.push_back(SamplingStrategy::VIEWCELL_BORDER_BASED_DISTRIBUTION);
|
---|
[1769] | 623 | }
|
---|
| 624 |
|
---|
[1633] | 625 | ///////////////
|
---|
[1381] | 626 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[1633] | 627 |
|
---|
| 628 | VssRayContainer visSamples;
|
---|
| 629 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
[1773] | 630 | mStrategies,
|
---|
[1633] | 631 | visSamples);
|
---|
[574] | 632 |
|
---|
[666] | 633 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[1633] | 634 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
[574] | 635 |
|
---|
[1444] | 636 | // various visualizations
|
---|
[1633] | 637 | Visualize(preprocessor->mObjects, visSamples);
|
---|
[574] | 638 |
|
---|
[1633] | 639 | disposeRays(visSamples, outRays);
|
---|
[666] | 640 | }
|
---|
[574] | 641 |
|
---|
[1444] | 642 | // recalculate view cells
|
---|
| 643 | EvaluateViewCellsStats();
|
---|
| 644 |
|
---|
[1843] | 645 | if (1) CompressViewCells();
|
---|
| 646 |
|
---|
| 647 | // write view cells to disc
|
---|
| 648 | if (mExportViewCells)
|
---|
| 649 | {
|
---|
| 650 | char filename[100];
|
---|
[1924] | 651 |
|
---|
[1843] | 652 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 653 | ExportViewCells(filename, mExportPvs, mPreprocessor->mObjects);
|
---|
| 654 | }
|
---|
| 655 |
|
---|
[573] | 656 | return numSamples;
|
---|
[527] | 657 | }
|
---|
| 658 |
|
---|
[547] | 659 |
|
---|
[1418] | 660 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 661 | {
|
---|
| 662 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 663 | }
|
---|
| 664 |
|
---|
| 665 |
|
---|
[728] | 666 |
|
---|
| 667 |
|
---|
[979] | 668 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 669 | ObjectContainer *objects,
|
---|
[1676] | 670 | bool finalizeViewCells,
|
---|
[979] | 671 | BoundingBoxConverter *bconverter)
|
---|
| 672 |
|
---|
| 673 | {
|
---|
| 674 | ViewCellsParser parser;
|
---|
| 675 | ViewCellsManager *vm = NULL;
|
---|
| 676 |
|
---|
[1616] | 677 | const long startTime = GetTime();
|
---|
| 678 | bool success = parser.ParseViewCellsFile(filename, &vm, objects, bconverter);
|
---|
| 679 |
|
---|
[1715] | 680 | cout<<"viewcells parsed "<<endl<<flush;
|
---|
| 681 |
|
---|
[1616] | 682 | if (success)
|
---|
[979] | 683 | {
|
---|
[1621] | 684 | //vm->ResetViewCells();
|
---|
[1679] | 685 | //hack
|
---|
| 686 | vm->mViewCells.clear();
|
---|
| 687 | ViewCellContainer leaves;
|
---|
| 688 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
[979] | 689 |
|
---|
[1679] | 690 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[1621] | 691 |
|
---|
[1679] | 692 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 693 | {
|
---|
| 694 | vm->mViewCells.push_back(*it);
|
---|
| 695 | }
|
---|
[979] | 696 | vm->mViewCellsFinished = true;
|
---|
| 697 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 698 |
|
---|
| 699 | if (finalizeViewCells)
|
---|
| 700 | {
|
---|
[1444] | 701 | // create the meshes and compute volumes
|
---|
[979] | 702 | vm->FinalizeViewCells(true);
|
---|
[1616] | 703 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 704 | }
|
---|
| 705 |
|
---|
| 706 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 707 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 708 | }
|
---|
| 709 | else
|
---|
| 710 | {
|
---|
| 711 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 712 | DEL_PTR(vm);
|
---|
| 713 | }
|
---|
| 714 |
|
---|
| 715 | return vm;
|
---|
| 716 | }
|
---|
| 717 |
|
---|
| 718 |
|
---|
| 719 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 720 | const bool exportPvs,
|
---|
| 721 | const ObjectContainer &objects)
|
---|
| 722 | {
|
---|
[1002] | 723 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 724 | {
|
---|
[997] | 725 | return false;
|
---|
[1545] | 726 | }
|
---|
[997] | 727 |
|
---|
[979] | 728 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 729 |
|
---|
[1201] | 730 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 731 |
|
---|
| 732 | // for output we need unique ids for each view cell
|
---|
| 733 | CreateUniqueViewCellIds();
|
---|
| 734 |
|
---|
| 735 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 736 | stream << "<VisibilitySolution>" << endl;
|
---|
| 737 |
|
---|
[1262] | 738 | if (exportPvs)
|
---|
| 739 | {
|
---|
| 740 | //-- export bounding boxes
|
---|
| 741 | stream << "<BoundingBoxes>" << endl;
|
---|
[979] | 742 |
|
---|
[1902] | 743 | if (mUseKdPvs)
|
---|
[1614] | 744 | {
|
---|
[1902] | 745 | vector<KdIntersectable *>::iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
| 746 |
|
---|
| 747 | int id = 0;
|
---|
| 748 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 749 | {
|
---|
| 750 | Intersectable *obj = *kit;
|
---|
| 751 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
[1761] | 752 |
|
---|
[1902] | 753 | obj->SetId(id);
|
---|
| 754 |
|
---|
| 755 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 756 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 757 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 758 | }
|
---|
[1614] | 759 | }
|
---|
[1902] | 760 | else
|
---|
| 761 | {
|
---|
| 762 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[1761] | 763 |
|
---|
[1902] | 764 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 765 | {
|
---|
| 766 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 767 |
|
---|
[1902] | 768 | ////////////
|
---|
| 769 | //-- the bounding boxes
|
---|
| 770 |
|
---|
| 771 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
| 772 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 773 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 774 | }
|
---|
[1262] | 775 | }
|
---|
[1902] | 776 |
|
---|
[1262] | 777 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 778 | }
|
---|
[979] | 779 |
|
---|
[1264] | 780 |
|
---|
[1551] | 781 | /////////////
|
---|
[979] | 782 | //-- export the view cells and the pvs
|
---|
| 783 |
|
---|
| 784 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 785 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 786 |
|
---|
[979] | 787 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 788 |
|
---|
| 789 | stream << "</ViewCells>" << endl;
|
---|
| 790 |
|
---|
| 791 |
|
---|
[1551] | 792 | //////////
|
---|
[1262] | 793 | //-- export the view space hierarchy
|
---|
[979] | 794 |
|
---|
[1262] | 795 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 796 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 797 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 798 |
|
---|
[979] | 799 | mVspBspTree->Export(stream);
|
---|
[1286] | 800 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 801 |
|
---|
| 802 | stream << "</VisibilitySolution>" << endl;
|
---|
| 803 |
|
---|
| 804 | stream.close();
|
---|
| 805 | cout << "finished" << endl;
|
---|
| 806 |
|
---|
| 807 | return true;
|
---|
| 808 | }
|
---|
| 809 |
|
---|
[1974] | 810 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 811 | const int nViewCells)
|
---|
| 812 | {
|
---|
| 813 | std::ofstream outstream;
|
---|
| 814 | outstream.open(filename.c_str());
|
---|
[979] | 815 |
|
---|
[1974] | 816 | ViewCellContainer viewCells;
|
---|
| 817 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 818 | #if 1
|
---|
| 819 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
| 820 | #else
|
---|
| 821 | viewCells = mViewCells;
|
---|
| 822 | #endif
|
---|
| 823 |
|
---|
| 824 | float maxRenderCost, minRenderCost;
|
---|
| 825 |
|
---|
| 826 | // sort by render cost
|
---|
| 827 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 828 |
|
---|
| 829 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 830 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 831 |
|
---|
| 832 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
| 833 |
|
---|
| 834 | int histoIntervals;
|
---|
| 835 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
| 836 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
| 837 |
|
---|
| 838 | int histoMaxVal;
|
---|
| 839 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
| 840 | maxRenderCost = min((float)histoMaxVal, maxRenderCost);
|
---|
| 841 |
|
---|
| 842 |
|
---|
| 843 | const float range = maxRenderCost - minRenderCost;
|
---|
| 844 | const float stepSize = range / (float)intervals;
|
---|
| 845 |
|
---|
| 846 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 847 |
|
---|
| 848 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 849 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 850 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
| 851 |
|
---|
| 852 | int j = 0;
|
---|
| 853 | int i = 0;
|
---|
| 854 |
|
---|
| 855 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 856 |
|
---|
| 857 | // count for integral
|
---|
| 858 | float volSum = 0;
|
---|
| 859 | int smallerCostSum = 0;
|
---|
| 860 |
|
---|
| 861 | // note can skip computations for view cells already
|
---|
| 862 | // evaluated and delete them from vector ...
|
---|
| 863 | while (1)
|
---|
| 864 | {
|
---|
| 865 | // count for histogram value
|
---|
| 866 | float volDif = 0;
|
---|
| 867 | int smallerCostDif = 0;
|
---|
| 868 |
|
---|
| 869 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 870 | {
|
---|
| 871 | volSum += viewCells[i]->GetVolume();
|
---|
| 872 | volDif += viewCells[i]->GetVolume();
|
---|
| 873 |
|
---|
| 874 | ++ i;
|
---|
| 875 | ++ smallerCostSum;
|
---|
| 876 | ++ smallerCostDif;
|
---|
| 877 | }
|
---|
| 878 |
|
---|
| 879 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
| 880 | break;
|
---|
| 881 |
|
---|
| 882 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 883 | const float volRatioSum = volSum / totalVol;
|
---|
| 884 | const float volRatioDif = volDif / totalVol;
|
---|
| 885 |
|
---|
| 886 | outstream << "#Pass\n" << j ++ << endl;
|
---|
| 887 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 888 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
| 889 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 890 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 891 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 892 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
| 893 |
|
---|
| 894 | // increase current render cost
|
---|
| 895 | currentRenderCost += stepSize;
|
---|
| 896 | }
|
---|
| 897 |
|
---|
| 898 | outstream.close();
|
---|
| 899 | }
|
---|
| 900 |
|
---|
[735] | 901 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 902 | const int nViewCells)
|
---|
[734] | 903 | {
|
---|
| 904 | std::ofstream outstream;
|
---|
| 905 | outstream.open(filename.c_str());
|
---|
| 906 |
|
---|
| 907 | ViewCellContainer viewCells;
|
---|
[1771] | 908 |
|
---|
| 909 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 910 | #if 0
|
---|
[735] | 911 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[1771] | 912 | #else
|
---|
| 913 | viewCells = mViewCells;
|
---|
| 914 | #endif
|
---|
[1917] | 915 | ViewCellContainer::iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 916 | for (; it != it_end; ++it)
|
---|
| 917 | {
|
---|
| 918 | if (1)
|
---|
| 919 | (*it)->UpdatePvsCost();
|
---|
| 920 | else
|
---|
| 921 | (*it)->SetPvsCost((float)(*it)->GetFilteredPvsSize());
|
---|
[1771] | 922 | }
|
---|
[734] | 923 |
|
---|
[1709] | 924 | float maxPvs, maxVal, minVal;
|
---|
[1771] | 925 |
|
---|
[997] | 926 | // sort by pvs size
|
---|
[735] | 927 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 928 |
|
---|
[1771] | 929 | maxPvs = viewCells.back()->GetPvsCost();
|
---|
[997] | 930 | minVal = 0;
|
---|
| 931 |
|
---|
[991] | 932 | // hack: normalize pvs size
|
---|
[997] | 933 | int histoMaxVal;
|
---|
[1917] | 934 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1709] | 935 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
[997] | 936 |
|
---|
[1121] | 937 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 938 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 939 |
|
---|
[997] | 940 | int histoIntervals;
|
---|
[1004] | 941 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 942 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 943 |
|
---|
[1709] | 944 | const float range = maxVal - minVal;
|
---|
| 945 | int stepSize = (int)(range / intervals);
|
---|
[735] | 946 |
|
---|
[997] | 947 | // set step size to avoid endless loop
|
---|
[735] | 948 | if (!stepSize) stepSize = 1;
|
---|
[979] | 949 |
|
---|
[1917] | 950 | Debug << "intervals " << histoIntervals << endl;
|
---|
[979] | 951 | Debug << "stepsize: " << stepSize << endl;
|
---|
[1917] | 952 | cout << "intervals " << histoIntervals << endl;
|
---|
| 953 | cout << "stepsize: " << stepSize << endl;
|
---|
| 954 |
|
---|
[735] | 955 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 956 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 957 |
|
---|
[1709] | 958 | float currentPvs = minVal;
|
---|
[997] | 959 |
|
---|
[735] | 960 | int i = 0;
|
---|
| 961 | int j = 0;
|
---|
[744] | 962 | float volSum = 0;
|
---|
| 963 | int smallerSum = 0;
|
---|
| 964 |
|
---|
[1771] | 965 | it = viewCells.begin();
|
---|
[735] | 966 |
|
---|
[997] | 967 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 968 | {
|
---|
[744] | 969 | float volDif = 0;
|
---|
| 970 | int smallerDif = 0;
|
---|
[736] | 971 |
|
---|
[997] | 972 | while ((i < (int)viewCells.size()) &&
|
---|
[1771] | 973 | (viewCells[i]->GetPvsCost() < currentPvs))
|
---|
[735] | 974 | {
|
---|
[744] | 975 | volDif += viewCells[i]->GetVolume();
|
---|
| 976 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 977 |
|
---|
[735] | 978 | ++ i;
|
---|
[744] | 979 | ++ smallerDif;
|
---|
| 980 | ++ smallerSum;
|
---|
[735] | 981 | }
|
---|
[736] | 982 |
|
---|
[1771] | 983 | // if (0 && (i < (int)viewCells.size()))
|
---|
| 984 | // Debug << "new pvs cost increase: " << mViewCellsTree->GetPvsCost(viewCells[i])
|
---|
| 985 | // << " " << currentPvs << endl;
|
---|
| 986 |
|
---|
[744] | 987 | const float volRatioDif = volDif / totalVol;
|
---|
| 988 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 989 |
|
---|
[997] | 990 | outstream << "#Pass\n" << j << endl;
|
---|
| 991 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 992 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 993 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 994 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 995 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 996 |
|
---|
| 997 | //-- increase current pvs size to define next interval
|
---|
| 998 | currentPvs += stepSize;
|
---|
[728] | 999 | }
|
---|
[991] | 1000 |
|
---|
[735] | 1001 | outstream.close();
|
---|
[728] | 1002 | }
|
---|
| 1003 |
|
---|
[735] | 1004 |
|
---|
[1919] | 1005 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 1006 | ViewCellContainer &viewCells)
|
---|
| 1007 | {
|
---|
| 1008 | std::ofstream outstream;
|
---|
| 1009 | outstream.open(filename.c_str());
|
---|
| 1010 |
|
---|
| 1011 | float maxPvs, maxVal, minVal;
|
---|
| 1012 |
|
---|
| 1013 | // sort by pvs size
|
---|
| 1014 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 1015 |
|
---|
| 1016 | maxPvs = viewCells.back()->GetPvsCost();
|
---|
| 1017 | minVal = 0;
|
---|
| 1018 |
|
---|
| 1019 | // hack: normalize pvs size
|
---|
| 1020 | int histoMaxVal;
|
---|
| 1021 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
| 1022 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
| 1023 |
|
---|
| 1024 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 1025 | << " real maxpvs " << maxPvs << endl;
|
---|
| 1026 |
|
---|
| 1027 | int histoIntervals;
|
---|
| 1028 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
| 1029 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
| 1030 |
|
---|
| 1031 | const float range = maxVal - minVal;
|
---|
| 1032 | int stepSize = (int)(range / intervals);
|
---|
| 1033 |
|
---|
| 1034 | // set step size to avoid endless loop
|
---|
| 1035 | if (!stepSize) stepSize = 1;
|
---|
| 1036 |
|
---|
| 1037 | Debug << "intervals " << histoIntervals << endl;
|
---|
| 1038 | Debug << "stepsize: " << stepSize << endl;
|
---|
| 1039 | cout << "intervals " << histoIntervals << endl;
|
---|
| 1040 | cout << "stepsize: " << stepSize << endl;
|
---|
| 1041 |
|
---|
| 1042 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 1043 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 1044 |
|
---|
| 1045 | float currentPvs = minVal;
|
---|
| 1046 |
|
---|
| 1047 | int i = 0;
|
---|
| 1048 | int j = 0;
|
---|
| 1049 | float volSum = 0;
|
---|
| 1050 | int smallerSum = 0;
|
---|
| 1051 |
|
---|
| 1052 | //ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 1053 |
|
---|
| 1054 | for (int j = 0; j < intervals; ++ j)
|
---|
| 1055 | {
|
---|
| 1056 | float volDif = 0;
|
---|
| 1057 | int smallerDif = 0;
|
---|
| 1058 |
|
---|
| 1059 | while ((i < (int)viewCells.size()) &&
|
---|
| 1060 | (viewCells[i]->GetPvsCost() < currentPvs))
|
---|
| 1061 | {
|
---|
| 1062 | volDif += viewCells[i]->GetVolume();
|
---|
| 1063 | volSum += viewCells[i]->GetVolume();
|
---|
| 1064 |
|
---|
| 1065 | ++ i;
|
---|
| 1066 | ++ smallerDif;
|
---|
| 1067 | ++ smallerSum;
|
---|
| 1068 | }
|
---|
| 1069 |
|
---|
| 1070 | // if (0 && (i < (int)viewCells.size()))
|
---|
| 1071 | // Debug << "new pvs cost increase: " << mViewCellsTree->GetPvsCost(viewCells[i])
|
---|
| 1072 | // << " " << currentPvs << endl;
|
---|
| 1073 |
|
---|
| 1074 | const float volRatioDif = volDif / totalVol;
|
---|
| 1075 | const float volRatioSum = volSum / totalVol;
|
---|
| 1076 |
|
---|
| 1077 | outstream << "#Pass\n" << j << endl;
|
---|
| 1078 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
| 1079 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 1080 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 1081 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 1082 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
| 1083 |
|
---|
| 1084 | //-- increase current pvs size to define next interval
|
---|
| 1085 | currentPvs += stepSize;
|
---|
| 1086 | }
|
---|
| 1087 |
|
---|
| 1088 | outstream.close();
|
---|
| 1089 | }
|
---|
| 1090 |
|
---|
| 1091 |
|
---|
[1002] | 1092 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 1093 | {
|
---|
| 1094 | return mExportPvs;
|
---|
| 1095 | }
|
---|
| 1096 |
|
---|
| 1097 |
|
---|
[1580] | 1098 | void ViewCellsManager::ResetPvs()
|
---|
| 1099 | {
|
---|
| 1100 | if (ViewCellsTreeConstructed())
|
---|
| 1101 | {
|
---|
| 1102 | mViewCellsTree->ResetPvs();
|
---|
| 1103 | }
|
---|
| 1104 | else
|
---|
| 1105 | {
|
---|
| 1106 | cout << "view cells tree not constructed" << endl;
|
---|
| 1107 | }
|
---|
| 1108 | }
|
---|
| 1109 |
|
---|
| 1110 |
|
---|
[1679] | 1111 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
| 1112 | {
|
---|
| 1113 | mViewCellsTree->ExportStats(fileName);
|
---|
| 1114 | }
|
---|
| 1115 |
|
---|
| 1116 |
|
---|
[1145] | 1117 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 1118 | {
|
---|
| 1119 | int samplesPerPass;
|
---|
| 1120 | int numSamples;
|
---|
| 1121 | int castSamples = 0;
|
---|
[1570] | 1122 | char str[64];
|
---|
[1695] | 1123 | int oldSamples = 0;
|
---|
[660] | 1124 |
|
---|
[1695] | 1125 | int samplesForStats;
|
---|
| 1126 |
|
---|
[1004] | 1127 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1695] | 1128 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1004] | 1129 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 1130 |
|
---|
[664] | 1131 | char statsPrefix[100];
|
---|
[1004] | 1132 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 1133 |
|
---|
[664] | 1134 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 1135 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 1136 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 1137 |
|
---|
[801] | 1138 | cout << "reseting pvs ... ";
|
---|
| 1139 |
|
---|
[1145] | 1140 | const bool startFromZero = true;
|
---|
[801] | 1141 |
|
---|
[666] | 1142 | // reset pvs and start over from zero
|
---|
| 1143 | if (startFromZero)
|
---|
| 1144 | {
|
---|
| 1145 | mViewCellsTree->ResetPvs();
|
---|
| 1146 | }
|
---|
[1145] | 1147 | else // start from current sampless
|
---|
[666] | 1148 | {
|
---|
[1145] | 1149 | // statistics before casting more samples
|
---|
[666] | 1150 | cout << "compute new statistics ... ";
|
---|
[1570] | 1151 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1152 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 1153 |
|
---|
| 1154 | mViewCellsTree->ExportStats(fName);
|
---|
| 1155 | cout << "finished" << endl;
|
---|
| 1156 | }
|
---|
[1570] | 1157 |
|
---|
[744] | 1158 | cout << "finished" << endl;
|
---|
[1178] | 1159 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 1160 |
|
---|
[660] | 1161 | while (castSamples < numSamples)
|
---|
[1686] | 1162 | {
|
---|
| 1163 | ///////////////
|
---|
| 1164 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 1165 |
|
---|
[664] | 1166 | VssRayContainer evaluationSamples;
|
---|
[1686] | 1167 | const int samplingType = mEvaluationSamplingType;
|
---|
[663] | 1168 |
|
---|
[1004] | 1169 | long startTime = GetTime();
|
---|
| 1170 |
|
---|
| 1171 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1172 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1173 |
|
---|
[1773] | 1174 | CastPassSamples(samplesPerPass, mStrategies, evaluationSamples);
|
---|
[664] | 1175 |
|
---|
| 1176 | castSamples += samplesPerPass;
|
---|
| 1177 |
|
---|
[1004] | 1178 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1695] | 1179 |
|
---|
| 1180 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1181 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1695] | 1182 |
|
---|
| 1183 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1184 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 1185 |
|
---|
| 1186 | startTime = GetTime();
|
---|
| 1187 |
|
---|
[664] | 1188 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 1189 |
|
---|
[1004] | 1190 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1191 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1192 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 1193 |
|
---|
[1695] | 1194 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
| 1195 | {
|
---|
| 1196 | oldSamples += samplesForStats;
|
---|
[1686] | 1197 |
|
---|
[1695] | 1198 | ///////////
|
---|
| 1199 | //-- output stats
|
---|
[1686] | 1200 |
|
---|
[1695] | 1201 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1202 | string fileName = string(statsPrefix) + string(str);
|
---|
[1686] | 1203 |
|
---|
[1695] | 1204 | ///////////////
|
---|
| 1205 | //-- propagate pvs or pvs size information
|
---|
[1586] | 1206 |
|
---|
[1695] | 1207 | startTime = GetTime();
|
---|
| 1208 | ObjectPvs pvs;
|
---|
[664] | 1209 |
|
---|
[1709] | 1210 | cout << "updating pvs for evaluation ... " << endl;
|
---|
[664] | 1211 |
|
---|
[1695] | 1212 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 1213 |
|
---|
| 1214 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1215 | cout << "finished updating the pvs in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1216 | Debug << "pvs evaluated in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1217 |
|
---|
| 1218 | startTime = GetTime();
|
---|
| 1219 | cout << "compute new statistics ... " << endl;
|
---|
| 1220 |
|
---|
| 1221 | ExportStats(fileName);
|
---|
| 1222 |
|
---|
| 1223 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1224 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1225 | Debug << "statistis computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1226 | }
|
---|
| 1227 |
|
---|
[664] | 1228 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 1229 | }
|
---|
[728] | 1230 |
|
---|
[997] | 1231 |
|
---|
[1570] | 1232 | ////////////
|
---|
[997] | 1233 | //-- histogram
|
---|
| 1234 |
|
---|
[1695] | 1235 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[735] | 1236 | bool useHisto;
|
---|
[997] | 1237 | int histoStepSize;
|
---|
[693] | 1238 |
|
---|
[1004] | 1239 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 1240 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 1241 |
|
---|
[735] | 1242 | if (useHisto)
|
---|
[734] | 1243 | {
|
---|
[735] | 1244 | // evaluate view cells in a histogram
|
---|
| 1245 | char s[64];
|
---|
| 1246 |
|
---|
[997] | 1247 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1248 | {
|
---|
[997] | 1249 | string filename;
|
---|
[744] | 1250 |
|
---|
[997] | 1251 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1252 | #if 0
|
---|
[744] | 1253 | //-- evaluate histogram for render cost
|
---|
| 1254 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1255 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1256 |
|
---|
| 1257 | EvalViewCellHistogram(filename, pass);
|
---|
| 1258 |
|
---|
[997] | 1259 | #endif
|
---|
[744] | 1260 | //////////////////////////////////////////
|
---|
[752] | 1261 | //-- evaluate histogram for pvs size
|
---|
[744] | 1262 |
|
---|
| 1263 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1264 |
|
---|
| 1265 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1266 | filename = string(statsPrefix) + string(s);
|
---|
| 1267 |
|
---|
[1974] | 1268 | EvalViewCellHistogram(filename, pass);
|
---|
| 1269 | // EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
[744] | 1270 | }
|
---|
[734] | 1271 | }
|
---|
[660] | 1272 | }
|
---|
| 1273 |
|
---|
[704] | 1274 |
|
---|
| 1275 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1276 | {
|
---|
[704] | 1277 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1278 | }
|
---|
[660] | 1279 |
|
---|
[703] | 1280 |
|
---|
[1145] | 1281 | /// Returns index of the best view cells of the neighborhood
|
---|
[1707] | 1282 | static int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
[704] | 1283 | {
|
---|
[705] | 1284 | int bestViewCellIdx = 0;
|
---|
[703] | 1285 |
|
---|
[704] | 1286 | float mergeCost = Limits::Infinity;
|
---|
| 1287 | int i = 0;
|
---|
[703] | 1288 |
|
---|
[734] | 1289 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1290 |
|
---|
[734] | 1291 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1292 | {
|
---|
[734] | 1293 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1294 |
|
---|
| 1295 | if (mc < mergeCost)
|
---|
[704] | 1296 | {
|
---|
| 1297 | mergeCost = mc;
|
---|
| 1298 | bestViewCellIdx = i;
|
---|
[703] | 1299 | }
|
---|
[704] | 1300 | }
|
---|
[703] | 1301 |
|
---|
[704] | 1302 | return bestViewCellIdx;
|
---|
| 1303 | }
|
---|
[703] | 1304 |
|
---|
| 1305 |
|
---|
[728] | 1306 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1307 | {
|
---|
| 1308 | mMaxFilterSize = size;
|
---|
| 1309 | }
|
---|
| 1310 |
|
---|
| 1311 |
|
---|
[1703] | 1312 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) //const
|
---|
[728] | 1313 | {
|
---|
[1703] | 1314 | switch (sRenderCostEvaluationType)
|
---|
[728] | 1315 | {
|
---|
| 1316 | case PER_OBJECT:
|
---|
[752] | 1317 | return 1.0f;
|
---|
[728] | 1318 |
|
---|
| 1319 | case PER_TRIANGLE:
|
---|
[1703] | 1320 | {
|
---|
[1701] | 1321 | return (float)obj->NumberOfFaces();
|
---|
[728] | 1322 | }
|
---|
| 1323 | default:
|
---|
[752] | 1324 | cout << "default" << endl;
|
---|
| 1325 | return 1.0f;
|
---|
[728] | 1326 | }
|
---|
| 1327 |
|
---|
| 1328 | // should not come here
|
---|
[752] | 1329 | return 0.0f;
|
---|
[728] | 1330 | }
|
---|
| 1331 |
|
---|
| 1332 |
|
---|
[704] | 1333 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1334 | const ViewCellContainer &viewCells)
|
---|
| 1335 | {
|
---|
| 1336 | ViewCell *root = currentViewCell;
|
---|
| 1337 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1338 |
|
---|
[704] | 1339 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1340 |
|
---|
[704] | 1341 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1342 |
|
---|
| 1343 | /////////////////
|
---|
[704] | 1344 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1345 |
|
---|
[704] | 1346 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1347 | {
|
---|
[704] | 1348 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1349 |
|
---|
[704] | 1350 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1351 |
|
---|
[704] | 1352 | // remove from vector
|
---|
| 1353 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1354 | neighborhood.pop_back();
|
---|
[705] | 1355 |
|
---|
[704] | 1356 | if (!bestViewCell || !root)
|
---|
[1545] | 1357 | cout << "warning!!" << endl;
|
---|
[705] | 1358 |
|
---|
[704] | 1359 | // create new root of the hierarchy
|
---|
| 1360 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1361 | }
|
---|
| 1362 |
|
---|
[704] | 1363 | return root;
|
---|
[703] | 1364 | }
|
---|
| 1365 |
|
---|
[704] | 1366 |
|
---|
[713] | 1367 | struct SortableViewCellEntry {
|
---|
| 1368 |
|
---|
[1174] | 1369 | SortableViewCellEntry() {}
|
---|
| 1370 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1371 |
|
---|
[1174] | 1372 | float mValue;
|
---|
| 1373 | ViewCell *mViewCell;
|
---|
| 1374 |
|
---|
| 1375 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1376 | return a.mValue < b.mValue;
|
---|
| 1377 | }
|
---|
[713] | 1378 | };
|
---|
| 1379 |
|
---|
[1174] | 1380 |
|
---|
| 1381 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1382 | const ViewCellContainer &viewCells)
|
---|
[713] | 1383 | {
|
---|
| 1384 |
|
---|
| 1385 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1386 | int i, j;
|
---|
| 1387 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1388 | if (viewCells[i] != currentViewCell)
|
---|
| 1389 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1390 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1391 | viewCells[i]);
|
---|
| 1392 | }
|
---|
| 1393 | neighborhood.resize(j);
|
---|
| 1394 |
|
---|
| 1395 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1396 |
|
---|
| 1397 | ViewCell *root = currentViewCell;
|
---|
| 1398 |
|
---|
| 1399 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1400 |
|
---|
| 1401 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1402 | //-- use priority queue to merge leaf pairs
|
---|
| 1403 |
|
---|
| 1404 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1405 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1406 | {
|
---|
[713] | 1407 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1408 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1409 | // create new root of the hierarchy
|
---|
| 1410 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1411 | // set negative cost so that this view cell gets deleted
|
---|
| 1412 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1413 | }
|
---|
[713] | 1414 |
|
---|
| 1415 | return root;
|
---|
| 1416 | }
|
---|
| 1417 |
|
---|
| 1418 | void
|
---|
| 1419 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1420 | ) const
|
---|
| 1421 | {
|
---|
[1586] | 1422 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1423 | {
|
---|
| 1424 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1425 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1426 |
|
---|
| 1427 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1428 | DeleteLocalMergeTree(*it);
|
---|
| 1429 |
|
---|
| 1430 | vci->mChildren.clear();
|
---|
| 1431 |
|
---|
| 1432 | delete vci;
|
---|
[713] | 1433 | }
|
---|
| 1434 | }
|
---|
| 1435 |
|
---|
[1021] | 1436 |
|
---|
[564] | 1437 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1438 | int minPvsSize,
|
---|
[562] | 1439 | int maxPvsSize) const
|
---|
[547] | 1440 | {
|
---|
[569] | 1441 |
|
---|
[1707] | 1442 | if ((vc->GetPvs().EvalPvsCost() > maxPvsSize) ||
|
---|
| 1443 | (vc->GetPvs().EvalPvsCost() < minPvsSize))
|
---|
[564] | 1444 | {
|
---|
[710] | 1445 | return false;
|
---|
[561] | 1446 | }
|
---|
[570] | 1447 |
|
---|
[710] | 1448 | return true;
|
---|
[547] | 1449 | }
|
---|
| 1450 |
|
---|
| 1451 |
|
---|
[710] | 1452 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1453 | ViewCellContainer &viewCells) const
|
---|
| 1454 | {
|
---|
| 1455 | return 0;
|
---|
| 1456 | };
|
---|
| 1457 |
|
---|
[1021] | 1458 |
|
---|
[697] | 1459 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1460 | const float width) const
|
---|
| 1461 | {
|
---|
[746] | 1462 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1463 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1464 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1465 |
|
---|
| 1466 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1467 | }
|
---|
| 1468 |
|
---|
| 1469 |
|
---|
[904] | 1470 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1471 | PrVs &prvs,
|
---|
| 1472 | const float filterWidth)
|
---|
[697] | 1473 | {
|
---|
[1594] | 1474 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1475 |
|
---|
[1594] | 1476 | if (mMaxFilterSize < 1) {
|
---|
| 1477 | prvs.mViewCell = currentViewCell;
|
---|
| 1478 | return;
|
---|
| 1479 | }
|
---|
| 1480 |
|
---|
| 1481 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1482 |
|
---|
| 1483 | if (currentViewCell)
|
---|
[1545] | 1484 | {
|
---|
[1594] | 1485 | ViewCellContainer viewCells;
|
---|
| 1486 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1487 |
|
---|
| 1488 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1489 | prvs.mViewCell = root;
|
---|
| 1490 |
|
---|
[1545] | 1491 | }
|
---|
[1594] | 1492 | else
|
---|
[1545] | 1493 | {
|
---|
[1594] | 1494 | prvs.mViewCell = NULL;
|
---|
| 1495 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1496 | }
|
---|
[697] | 1497 | }
|
---|
| 1498 |
|
---|
| 1499 |
|
---|
[581] | 1500 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1501 | {
|
---|
[1002] | 1502 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1503 | }
|
---|
| 1504 |
|
---|
| 1505 |
|
---|
[564] | 1506 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1507 | int minPvs,
|
---|
[562] | 1508 | int maxPvs) const
|
---|
| 1509 | {
|
---|
| 1510 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1511 | }
|
---|
| 1512 |
|
---|
[577] | 1513 |
|
---|
[569] | 1514 | void
|
---|
| 1515 | ViewCellsManager::SetValidity(
|
---|
[570] | 1516 | int minPvsSize,
|
---|
[569] | 1517 | int maxPvsSize) const
|
---|
| 1518 | {
|
---|
[991] | 1519 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1520 |
|
---|
[991] | 1521 |
|
---|
| 1522 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1523 | {
|
---|
| 1524 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1525 | }
|
---|
[569] | 1526 | }
|
---|
[562] | 1527 |
|
---|
[569] | 1528 | void
|
---|
| 1529 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1530 | const float minValid,
|
---|
| 1531 | const float maxValid
|
---|
| 1532 | )
|
---|
| 1533 | {
|
---|
[1761] | 1534 | ObjectPvs dummyPvs;
|
---|
| 1535 | // update pvs sizes
|
---|
| 1536 | for (int i = 0; i < (int)mViewCells.size(); ++ i) {
|
---|
| 1537 | UpdatePvsForEvaluation(mViewCells[i], dummyPvs);
|
---|
| 1538 | }
|
---|
| 1539 |
|
---|
| 1540 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 1541 |
|
---|
| 1542 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1543 | int end = (int)(mViewCells.size() * maxValid);
|
---|
| 1544 |
|
---|
| 1545 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1546 | {
|
---|
[1761] | 1547 | // cout<<"pvs:"<<mViewCells[i]->GetCachedPvsCost()<<endl;
|
---|
| 1548 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
[997] | 1549 | }
|
---|
[569] | 1550 | }
|
---|
| 1551 |
|
---|
[1148] | 1552 |
|
---|
[991] | 1553 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1554 | {
|
---|
[991] | 1555 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1556 | int valid = 0;
|
---|
| 1557 |
|
---|
| 1558 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1559 | {
|
---|
| 1560 | if ((*it)->GetValid())
|
---|
| 1561 | ++ valid;
|
---|
| 1562 | }
|
---|
| 1563 |
|
---|
| 1564 | return valid;
|
---|
[569] | 1565 | }
|
---|
| 1566 |
|
---|
[577] | 1567 |
|
---|
[1545] | 1568 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1569 | const bool extrudeBaseTriangles)
|
---|
[440] | 1570 | {
|
---|
[1545] | 1571 | /// we use predefined view cells from now on
|
---|
| 1572 | mUsePredefinedViewCells = true;
|
---|
[440] | 1573 | X3dParser parser;
|
---|
[1545] | 1574 |
|
---|
| 1575 | if (extrudeBaseTriangles)
|
---|
| 1576 | {
|
---|
| 1577 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1578 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1579 |
|
---|
| 1580 | if (!success)
|
---|
| 1581 | return false;
|
---|
[1545] | 1582 | }
|
---|
| 1583 | else
|
---|
| 1584 | {
|
---|
| 1585 | // hack: use standard mesh loading
|
---|
| 1586 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1587 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1588 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1589 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1590 |
|
---|
| 1591 | if (!success)
|
---|
[1545] | 1592 | {
|
---|
[1563] | 1593 | DEL_PTR(root);
|
---|
| 1594 | return false;
|
---|
| 1595 | }
|
---|
| 1596 |
|
---|
| 1597 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1598 |
|
---|
| 1599 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1600 | {
|
---|
| 1601 | Mesh *mesh;
|
---|
| 1602 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1603 | {
|
---|
[1563] | 1604 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1605 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1606 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1607 | }
|
---|
[1563] | 1608 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1609 | {
|
---|
| 1610 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1611 | mesh = mit->GetMesh();
|
---|
| 1612 | }
|
---|
| 1613 | mesh->ComputeBoundingBox();
|
---|
| 1614 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1615 | }
|
---|
[1563] | 1616 |
|
---|
[1545] | 1617 | DEL_PTR(root);
|
---|
| 1618 | }
|
---|
[503] | 1619 |
|
---|
[1563] | 1620 | // set view space box to bounding box of the view cells
|
---|
| 1621 | AxisAlignedBox3 bbox;
|
---|
| 1622 | bbox.Initialize();
|
---|
| 1623 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1624 |
|
---|
| 1625 | for (; it != it_end; ++ it)
|
---|
[1545] | 1626 | {
|
---|
[1563] | 1627 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1628 | }
|
---|
[503] | 1629 |
|
---|
[1563] | 1630 | SetViewSpaceBox(bbox);
|
---|
| 1631 | cout << "view space box: " << bbox << endl;
|
---|
| 1632 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1633 |
|
---|
| 1634 | return true;
|
---|
[440] | 1635 | }
|
---|
| 1636 |
|
---|
[485] | 1637 |
|
---|
[487] | 1638 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1639 | {
|
---|
[1867] | 1640 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
| 1641 | return true;
|
---|
[487] | 1642 | }
|
---|
| 1643 |
|
---|
[1867] | 1644 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const
|
---|
| 1645 | {
|
---|
| 1646 | viewPoint = mViewSpaceBox.GetRandomPoint(params);
|
---|
| 1647 | return true;
|
---|
| 1648 | }
|
---|
[487] | 1649 |
|
---|
[1867] | 1650 |
|
---|
[557] | 1651 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1652 | {
|
---|
[610] | 1653 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1654 | }
|
---|
| 1655 |
|
---|
| 1656 |
|
---|
[490] | 1657 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1658 | {
|
---|
[1444] | 1659 | if (!ViewCellsConstructed())
|
---|
| 1660 | {
|
---|
| 1661 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1662 | }
|
---|
| 1663 | else
|
---|
| 1664 | {
|
---|
| 1665 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1666 | return false;
|
---|
[837] | 1667 |
|
---|
[1444] | 1668 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1669 |
|
---|
| 1670 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1671 | return false;
|
---|
| 1672 | }
|
---|
| 1673 |
|
---|
| 1674 | return true;
|
---|
[490] | 1675 | }
|
---|
| 1676 |
|
---|
[501] | 1677 |
|
---|
[1867] | 1678 | float
|
---|
| 1679 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1680 | const bool addRays,
|
---|
[1990] | 1681 | const bool storeViewCells,
|
---|
| 1682 | const bool useHitObjects)
|
---|
[440] | 1683 | {
|
---|
[1867] | 1684 | float sum = 0.0f;
|
---|
[1900] | 1685 |
|
---|
[1867] | 1686 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1687 |
|
---|
| 1688 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
[1444] | 1689 | {
|
---|
[1900] | 1690 | if (!ViewCellsConstructed()) {
|
---|
| 1691 | // view cells not yet constructed
|
---|
| 1692 | // just take the lenghts of the rays as contributions
|
---|
| 1693 | if ((*it)->mTerminationObject)
|
---|
| 1694 | sum += (*it)->Length();
|
---|
| 1695 | } else {
|
---|
[1990] | 1696 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells, useHitObjects);
|
---|
[1900] | 1697 | }
|
---|
[1444] | 1698 | }
|
---|
[1931] | 1699 |
|
---|
[1867] | 1700 | return sum;
|
---|
[440] | 1701 | }
|
---|
| 1702 |
|
---|
[485] | 1703 |
|
---|
[479] | 1704 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1705 | {
|
---|
[660] | 1706 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1707 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1708 |
|
---|
| 1709 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1710 | {
|
---|
[660] | 1711 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1712 | }
|
---|
[479] | 1713 | }
|
---|
| 1714 |
|
---|
[485] | 1715 |
|
---|
[580] | 1716 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1717 | float &expectedRenderCost,
|
---|
[580] | 1718 | float &deviation,
|
---|
| 1719 | float &variance,
|
---|
[1709] | 1720 | float &totalCost,
|
---|
[580] | 1721 | float &avgRenderCost)
|
---|
[579] | 1722 | {
|
---|
[1444] | 1723 | ////////////
|
---|
| 1724 | //-- compute expected value
|
---|
[579] | 1725 |
|
---|
| 1726 | totalRenderCost = 0;
|
---|
[1709] | 1727 | totalCost = 0;
|
---|
[579] | 1728 |
|
---|
[1444] | 1729 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1730 |
|
---|
[579] | 1731 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1732 | {
|
---|
| 1733 | ViewCell *vc = *it;
|
---|
[1707] | 1734 | totalRenderCost += vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[1709] | 1735 | totalCost += (int)vc->GetPvs().EvalPvsCost();
|
---|
[579] | 1736 | }
|
---|
| 1737 |
|
---|
[580] | 1738 | // normalize with view space box
|
---|
| 1739 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1740 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[1709] | 1741 | avgRenderCost = totalCost / (float)mViewCells.size();
|
---|
[579] | 1742 |
|
---|
| 1743 |
|
---|
[1444] | 1744 | ///////////
|
---|
[580] | 1745 | //-- compute standard defiation
|
---|
[1444] | 1746 |
|
---|
[579] | 1747 | variance = 0;
|
---|
[580] | 1748 | deviation = 0;
|
---|
[579] | 1749 |
|
---|
| 1750 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1751 | {
|
---|
| 1752 | ViewCell *vc = *it;
|
---|
| 1753 |
|
---|
[1707] | 1754 | float renderCost = vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[580] | 1755 | float dev;
|
---|
[579] | 1756 |
|
---|
[580] | 1757 | if (1)
|
---|
[1707] | 1758 | dev = fabs(avgRenderCost - (float)vc->GetPvs().EvalPvsCost());
|
---|
[580] | 1759 | else
|
---|
| 1760 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1761 |
|
---|
[580] | 1762 | deviation += dev;
|
---|
| 1763 | variance += dev * dev;
|
---|
[579] | 1764 | }
|
---|
[580] | 1765 |
|
---|
[579] | 1766 | variance /= (float)mViewCells.size();
|
---|
[580] | 1767 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1768 | }
|
---|
| 1769 |
|
---|
| 1770 |
|
---|
[478] | 1771 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1772 | {
|
---|
| 1773 | return viewCell->GetArea();
|
---|
| 1774 | }
|
---|
| 1775 |
|
---|
| 1776 |
|
---|
| 1777 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1778 | {
|
---|
| 1779 | return viewCell->GetVolume();
|
---|
| 1780 | }
|
---|
| 1781 |
|
---|
[485] | 1782 |
|
---|
[1843] | 1783 | void ViewCellsManager::CompressViewCells()
|
---|
| 1784 | {
|
---|
[1889] | 1785 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
| 1786 | return;
|
---|
| 1787 |
|
---|
[1843] | 1788 | ////////////
|
---|
| 1789 | //-- compression
|
---|
[1889] | 1790 |
|
---|
| 1791 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1843] | 1792 |
|
---|
[1889] | 1793 | cout << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 1794 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[1843] | 1795 |
|
---|
[1889] | 1796 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[1843] | 1797 |
|
---|
[1889] | 1798 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 1799 |
|
---|
| 1800 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 1801 | cout << "number of entries after compress: " << pvsEntries << endl;
|
---|
[1843] | 1802 | }
|
---|
| 1803 |
|
---|
| 1804 |
|
---|
[503] | 1805 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1806 | const float height) const
|
---|
| 1807 | {
|
---|
| 1808 | // one mesh per view cell
|
---|
[1001] | 1809 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1810 |
|
---|
[1545] | 1811 | ////////////
|
---|
[440] | 1812 | //-- construct prism
|
---|
| 1813 |
|
---|
[503] | 1814 | // bottom
|
---|
[440] | 1815 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1816 | // top
|
---|
| 1817 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1818 | // sides
|
---|
| 1819 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1820 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1821 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1822 |
|
---|
[1545] | 1823 |
|
---|
| 1824 | /////////////
|
---|
| 1825 | //-- extrude new vertices for top of prism
|
---|
| 1826 |
|
---|
[1586] | 1827 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1828 | Triangle3 topTri;
|
---|
[440] | 1829 |
|
---|
| 1830 | // add base vertices and calculate top vertices
|
---|
| 1831 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1832 | {
|
---|
[440] | 1833 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1834 | }
|
---|
[503] | 1835 |
|
---|
| 1836 | // add top vertices
|
---|
[440] | 1837 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1838 | {
|
---|
[440] | 1839 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1840 | }
|
---|
[503] | 1841 |
|
---|
[1545] | 1842 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1843 | mesh->ComputeBoundingBox();
|
---|
| 1844 |
|
---|
[440] | 1845 | return GenerateViewCell(mesh);
|
---|
| 1846 | }
|
---|
| 1847 |
|
---|
[485] | 1848 |
|
---|
[551] | 1849 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1850 | {
|
---|
| 1851 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1852 |
|
---|
[1768] | 1853 | // volume and area of the view cells are recomputed
|
---|
| 1854 | // a view cell mesh is created
|
---|
[551] | 1855 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1856 | {
|
---|
| 1857 | Finalize(*it, createMesh);
|
---|
| 1858 | }
|
---|
[555] | 1859 |
|
---|
[1584] | 1860 | mViewCellsTree->AssignRandomColors();
|
---|
| 1861 |
|
---|
[555] | 1862 | mTotalAreaValid = false;
|
---|
[551] | 1863 | }
|
---|
| 1864 |
|
---|
| 1865 |
|
---|
| 1866 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1867 | {
|
---|
| 1868 | // implemented in subclasses
|
---|
| 1869 | }
|
---|
| 1870 |
|
---|
[1001] | 1871 |
|
---|
[1168] | 1872 | /** fast way of merging 2 view cells.
|
---|
| 1873 | */
|
---|
[582] | 1874 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1875 | {
|
---|
[580] | 1876 | // generate parent view cell
|
---|
[752] | 1877 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1878 |
|
---|
[752] | 1879 | vc->GetPvs().Clear();
|
---|
[1740] | 1880 | ObjectPvs::Merge(vc->GetPvs(), left->GetPvs(), right->GetPvs());
|
---|
[752] | 1881 |
|
---|
[710] | 1882 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1883 | vc->mChildren.push_back(left);
|
---|
| 1884 | vc->mChildren.push_back(right);
|
---|
| 1885 |
|
---|
[752] | 1886 | // update pvs size
|
---|
[1707] | 1887 | UpdateScalarPvsSize(vc, vc->GetPvs().EvalPvsCost(), vc->GetPvs().GetSize());
|
---|
[752] | 1888 |
|
---|
[440] | 1889 | return vc;
|
---|
| 1890 | }
|
---|
| 1891 |
|
---|
[485] | 1892 |
|
---|
[582] | 1893 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1894 | {
|
---|
[752] | 1895 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1896 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1897 |
|
---|
| 1898 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1899 | {
|
---|
[1740] | 1900 | vc->GetPvs().MergeInPlace((*it)->GetPvs());
|
---|
| 1901 |
|
---|
[710] | 1902 | vc->mChildren.push_back(*it);
|
---|
[582] | 1903 | }
|
---|
| 1904 |
|
---|
| 1905 | return vc;
|
---|
| 1906 | }
|
---|
| 1907 |
|
---|
| 1908 |
|
---|
[480] | 1909 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1910 | {
|
---|
| 1911 | mRenderer = renderer;
|
---|
| 1912 | }
|
---|
[441] | 1913 |
|
---|
[485] | 1914 |
|
---|
[580] | 1915 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1916 | {
|
---|
[580] | 1917 | return mViewCellsTree;
|
---|
[440] | 1918 | }
|
---|
| 1919 |
|
---|
| 1920 |
|
---|
| 1921 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1922 | {
|
---|
[444] | 1923 | mVisualizationSamples = visSamples;
|
---|
[440] | 1924 | }
|
---|
| 1925 |
|
---|
[485] | 1926 |
|
---|
[440] | 1927 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1928 | {
|
---|
| 1929 | mConstructionSamples = constructionSamples;
|
---|
| 1930 | }
|
---|
| 1931 |
|
---|
[485] | 1932 |
|
---|
[574] | 1933 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1934 | {
|
---|
| 1935 | mInitialSamples = initialSamples;
|
---|
| 1936 | }
|
---|
| 1937 |
|
---|
| 1938 |
|
---|
[440] | 1939 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1940 | {
|
---|
| 1941 | mPostProcessSamples = postProcessSamples;
|
---|
| 1942 | }
|
---|
| 1943 |
|
---|
[485] | 1944 |
|
---|
[440] | 1945 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1946 | {
|
---|
| 1947 | return mVisualizationSamples;
|
---|
| 1948 | }
|
---|
| 1949 |
|
---|
[485] | 1950 |
|
---|
[440] | 1951 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1952 | {
|
---|
| 1953 | return mConstructionSamples;
|
---|
| 1954 | }
|
---|
| 1955 |
|
---|
[485] | 1956 |
|
---|
[440] | 1957 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1958 | {
|
---|
| 1959 | return mPostProcessSamples;
|
---|
| 1960 | }
|
---|
| 1961 |
|
---|
[485] | 1962 |
|
---|
[719] | 1963 | void ViewCellsManager::UpdatePvs()
|
---|
| 1964 | {
|
---|
[1737] | 1965 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
| 1966 | return;
|
---|
| 1967 |
|
---|
| 1968 | mViewCellPvsIsUpdated = true;
|
---|
| 1969 |
|
---|
| 1970 | ViewCellContainer leaves;
|
---|
| 1971 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1972 |
|
---|
| 1973 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1974 |
|
---|
| 1975 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[719] | 1976 | {
|
---|
[1737] | 1977 | mViewCellsTree->PropagatePvs(*it);
|
---|
[719] | 1978 | }
|
---|
| 1979 | }
|
---|
| 1980 |
|
---|
| 1981 |
|
---|
[485] | 1982 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1983 | {
|
---|
[1737] | 1984 | // update pvs of view cells tree if necessary
|
---|
| 1985 | UpdatePvs();
|
---|
| 1986 |
|
---|
| 1987 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1988 |
|
---|
| 1989 | stat.viewcells = 0;
|
---|
| 1990 | stat.minPvs = 100000000;
|
---|
| 1991 | stat.maxPvs = 0;
|
---|
| 1992 | stat.avgPvs = 0.0f;
|
---|
[1974] | 1993 | stat.avgPvsEntries = 0.0f;
|
---|
[1737] | 1994 | stat.avgFilteredPvs = 0.0f;
|
---|
[1974] | 1995 | stat.avgFilteredPvsEntries = 0.0f;
|
---|
[1737] | 1996 | stat.avgFilterContribution = 0.0f;
|
---|
[1761] | 1997 | stat.avgFilterRadius = 0;
|
---|
| 1998 | stat.avgFilterRatio = 0;
|
---|
[1942] | 1999 | stat.avgRelPvsIncrease = 0.0f;
|
---|
| 2000 | stat.devRelPvsIncrease = 0.0f;
|
---|
[1737] | 2001 |
|
---|
[1942] | 2002 | if (mPerViewCellStat.size() != mViewCells.size()) {
|
---|
| 2003 | // reset the pvs size array after the first call to this routine
|
---|
| 2004 | mPerViewCellStat.resize(mViewCells.size());
|
---|
| 2005 | for (int i=0; i < mPerViewCellStat.size(); i++) {
|
---|
| 2006 | mPerViewCellStat[i].pvsSize = 0.0f;
|
---|
| 2007 | mPerViewCellStat[i].relPvsIncrease = 0.0f;
|
---|
| 2008 | }
|
---|
| 2009 | }
|
---|
| 2010 | int i;
|
---|
| 2011 | bool evaluateFilter;
|
---|
| 2012 | Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluateFilter", evaluateFilter);
|
---|
| 2013 |
|
---|
| 2014 | for (i=0; it != mViewCells.end(); ++ it, i++)
|
---|
[719] | 2015 | {
|
---|
[1737] | 2016 | ViewCell *viewcell = *it;
|
---|
[1761] | 2017 | if (viewcell->GetValid()) {
|
---|
| 2018 | const float pvsCost = mViewCellsTree->GetPvsCost(viewcell);
|
---|
[1974] | 2019 |
|
---|
[1761] | 2020 | if (pvsCost < stat.minPvs)
|
---|
| 2021 | stat.minPvs = pvsCost;
|
---|
| 2022 | if (pvsCost > stat.maxPvs)
|
---|
| 2023 | stat.maxPvs = pvsCost;
|
---|
| 2024 |
|
---|
| 2025 | stat.avgPvs += pvsCost;
|
---|
[1785] | 2026 |
|
---|
[1977] | 2027 | const float pvsEntries = (float)mViewCellsTree->GetPvsEntries(viewcell);
|
---|
[1974] | 2028 | stat.avgPvsEntries += pvsEntries;
|
---|
| 2029 |
|
---|
[1942] | 2030 | if (mPerViewCellStat[i].pvsSize > 0.0f)
|
---|
| 2031 | mPerViewCellStat[i].relPvsIncrease = (pvsCost - mPerViewCellStat[i].pvsSize)/mPerViewCellStat[i].pvsSize;
|
---|
[1761] | 2032 |
|
---|
[1942] | 2033 | stat.avgRelPvsIncrease += mPerViewCellStat[i].relPvsIncrease;
|
---|
[1761] | 2034 |
|
---|
[1942] | 2035 | // update the pvs size
|
---|
| 2036 | mPerViewCellStat[i].pvsSize = pvsCost;
|
---|
| 2037 |
|
---|
| 2038 |
|
---|
| 2039 |
|
---|
[1761] | 2040 | if (evaluateFilter) {
|
---|
[1877] | 2041 | ObjectPvs filteredPvs;
|
---|
[1974] | 2042 |
|
---|
[1824] | 2043 | PvsFilterStatistics fstat = ApplyFilter2(viewcell,
|
---|
[1877] | 2044 | false,
|
---|
[1966] | 2045 | 1.0f,
|
---|
[1877] | 2046 | filteredPvs);
|
---|
[1761] | 2047 |
|
---|
| 2048 | float filteredCost = filteredPvs.EvalPvsCost();
|
---|
[1974] | 2049 |
|
---|
[1761] | 2050 | stat.avgFilteredPvs += filteredCost;
|
---|
[1974] | 2051 | stat.avgFilteredPvsEntries += filteredPvs.GetSize();
|
---|
| 2052 |
|
---|
[1761] | 2053 | stat.avgFilterContribution += filteredCost - pvsCost;
|
---|
[1877] | 2054 |
|
---|
[1761] | 2055 | stat.avgFilterRadius += fstat.mAvgFilterRadius;
|
---|
[1771] | 2056 | int sum = fstat.mGlobalFilterCount + fstat.mLocalFilterCount;
|
---|
| 2057 | if (sum) {
|
---|
| 2058 | stat.avgFilterRatio += fstat.mLocalFilterCount /
|
---|
| 2059 | (float) sum;
|
---|
| 2060 | }
|
---|
[1761] | 2061 |
|
---|
| 2062 | } else {
|
---|
| 2063 | stat.avgFilteredPvs += pvsCost;
|
---|
| 2064 | stat.avgFilterContribution += 0;
|
---|
| 2065 | }
|
---|
| 2066 |
|
---|
| 2067 | ++ stat.viewcells;
|
---|
[1737] | 2068 | }
|
---|
[719] | 2069 | }
|
---|
[1942] | 2070 |
|
---|
[1737] | 2071 |
|
---|
[1942] | 2072 |
|
---|
[1737] | 2073 | if (stat.viewcells) {
|
---|
| 2074 | stat.avgPvs/=stat.viewcells;
|
---|
[1974] | 2075 | stat.avgPvsEntries/=stat.viewcells;
|
---|
[1983] | 2076 | stat.avgFilteredPvsEntries/=stat.viewcells;
|
---|
[1737] | 2077 | stat.avgFilteredPvs/=stat.viewcells;
|
---|
| 2078 | stat.avgFilterContribution/=stat.viewcells;
|
---|
[1761] | 2079 | stat.avgFilterRadius/=stat.viewcells;
|
---|
[1942] | 2080 | stat.avgFilterRatio/=stat.viewcells;
|
---|
| 2081 | stat.avgRelPvsIncrease/=stat.viewcells;
|
---|
| 2082 |
|
---|
| 2083 | // evaluate std deviation of relPvsIncrease
|
---|
| 2084 | float sum=0.0f;
|
---|
| 2085 | for (i=0; i < stat.viewcells; i++) {
|
---|
| 2086 | sum += sqr(mPerViewCellStat[i].relPvsIncrease - stat.avgRelPvsIncrease);
|
---|
| 2087 | }
|
---|
| 2088 | stat.devRelPvsIncrease = sqrt(sum/stat.viewcells);
|
---|
[1737] | 2089 | }
|
---|
[1942] | 2090 |
|
---|
[467] | 2091 | }
|
---|
| 2092 |
|
---|
[485] | 2093 |
|
---|
[480] | 2094 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 2095 | {
|
---|
| 2096 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 2097 | PvsStatistics pvsStat;
|
---|
| 2098 | GetPvsStatistics(pvsStat);
|
---|
| 2099 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
[1974] | 2100 | s<<"#AVG_ENTRIES_PVS\n"<<pvsStat.avgPvsEntries<<endl;
|
---|
[1737] | 2101 | s<<"#AVG_FILTERED_PVS\n"<<pvsStat.avgFilteredPvs<<endl;
|
---|
[1974] | 2102 | s<<"#AVG_FILTERED_ENTRIES_PVS\n"<<pvsStat.avgFilteredPvsEntries<<endl;
|
---|
[1737] | 2103 | s<<"#AVG_FILTER_CONTRIBUTION\n"<<pvsStat.avgFilterContribution<<endl;
|
---|
[1761] | 2104 | s<<"#AVG_FILTER_RADIUS\n"<<pvsStat.avgFilterRadius<<endl;
|
---|
| 2105 | s<<"#AVG_FILTER_RATIO\n"<<pvsStat.avgFilterRatio<<endl;
|
---|
[467] | 2106 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 2107 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
[1942] | 2108 | s<<"#AVG_REL_PVS_INCREASE\n"<<pvsStat.avgRelPvsIncrease<<endl;
|
---|
| 2109 | s<<"#DEV_REL_PVS_INCREASE\n"<<pvsStat.devRelPvsIncrease<<endl;
|
---|
[1983] | 2110 |
|
---|
| 2111 | s<<"#CONTRIBUTING_RAYS\n"<<mSamplesStat.mContributingRays<<endl;
|
---|
| 2112 |
|
---|
| 2113 | if (mSamplesStat.mRays) {
|
---|
| 2114 | s<<"#AVG_VIEWCELLS_PER_RAY\n"<<mSamplesStat.mViewCells/(float)mSamplesStat.mRays<<endl;
|
---|
| 2115 | } else {
|
---|
| 2116 | s<<"#AVG_VIEWCELLS_PER_RAY\n 1 \n";
|
---|
| 2117 | }
|
---|
| 2118 | mSamplesStat.Reset();
|
---|
[467] | 2119 | }
|
---|
| 2120 |
|
---|
[485] | 2121 |
|
---|
[532] | 2122 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 2123 | {
|
---|
| 2124 | return 0;
|
---|
| 2125 | }
|
---|
| 2126 |
|
---|
[547] | 2127 |
|
---|
[468] | 2128 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 2129 | {
|
---|
| 2130 | return mViewCells;
|
---|
| 2131 | }
|
---|
| 2132 |
|
---|
[485] | 2133 |
|
---|
[487] | 2134 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 2135 | {
|
---|
[542] | 2136 | mViewSpaceBox = box;
|
---|
[1074] | 2137 |
|
---|
[1027] | 2138 | // hack: create clip plane relative to new view space box
|
---|
[660] | 2139 | CreateClipPlane();
|
---|
[1027] | 2140 | // the total area of the view space has changed
|
---|
[577] | 2141 | mTotalAreaValid = false;
|
---|
[487] | 2142 | }
|
---|
| 2143 |
|
---|
| 2144 |
|
---|
[660] | 2145 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 2146 | {
|
---|
| 2147 | int axis = 0;
|
---|
[667] | 2148 | float pos;
|
---|
[1418] | 2149 | bool orientation;
|
---|
| 2150 | Vector3 absPos;
|
---|
[591] | 2151 |
|
---|
[1004] | 2152 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 2153 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 2154 |
|
---|
[1418] | 2155 | if (axis < 0)
|
---|
| 2156 | {
|
---|
| 2157 | axis = -axis;
|
---|
| 2158 | orientation = false;
|
---|
| 2159 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 2160 | }
|
---|
| 2161 | else
|
---|
| 2162 | {
|
---|
| 2163 | orientation = true;
|
---|
| 2164 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 2165 | }
|
---|
| 2166 |
|
---|
[1416] | 2167 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 2168 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 2169 | }
|
---|
| 2170 |
|
---|
| 2171 |
|
---|
[519] | 2172 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 2173 | {
|
---|
[542] | 2174 | return mViewSpaceBox;
|
---|
[519] | 2175 | }
|
---|
| 2176 |
|
---|
| 2177 |
|
---|
[480] | 2178 | void ViewCellsManager::ResetViewCells()
|
---|
| 2179 | {
|
---|
[720] | 2180 | // recollect view cells
|
---|
[480] | 2181 | mViewCells.clear();
|
---|
| 2182 | CollectViewCells();
|
---|
[590] | 2183 |
|
---|
[720] | 2184 | // stats are computed once more
|
---|
[480] | 2185 | EvaluateViewCellsStats();
|
---|
[590] | 2186 |
|
---|
[520] | 2187 | // has to be recomputed
|
---|
[480] | 2188 | mTotalAreaValid = false;
|
---|
| 2189 | }
|
---|
| 2190 |
|
---|
[485] | 2191 |
|
---|
[547] | 2192 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 2193 | {
|
---|
| 2194 | return mMaxPvsSize;
|
---|
| 2195 | }
|
---|
| 2196 |
|
---|
[564] | 2197 |
|
---|
[562] | 2198 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 2199 | {
|
---|
| 2200 | return mMinPvsSize;
|
---|
| 2201 | }
|
---|
| 2202 |
|
---|
| 2203 |
|
---|
| 2204 |
|
---|
[561] | 2205 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 2206 | {
|
---|
| 2207 | return mMaxPvsRatio;
|
---|
| 2208 | }
|
---|
| 2209 |
|
---|
[1594] | 2210 |
|
---|
[1932] | 2211 | inline static void AddSampleToPvs(ObjectPvs &pvs,
|
---|
| 2212 | Intersectable *obj,
|
---|
| 2213 | const float pdf)
|
---|
| 2214 | {
|
---|
| 2215 | #if PVS_ADD_DIRTY
|
---|
| 2216 | pvs.AddSampleDirtyCheck(obj, pdf);
|
---|
[1877] | 2217 |
|
---|
[1932] | 2218 | if (pvs.RequiresResort())
|
---|
| 2219 | {
|
---|
| 2220 | pvs.SimpleSort();
|
---|
| 2221 | }
|
---|
| 2222 | #else
|
---|
| 2223 | pvs.AddSample(obj, pdf);
|
---|
| 2224 | #endif
|
---|
| 2225 | }
|
---|
[1877] | 2226 |
|
---|
[1932] | 2227 |
|
---|
| 2228 | void ViewCellsManager::ComputeViewCellContribution(ViewCell *viewCell,
|
---|
| 2229 | VssRay &ray,
|
---|
| 2230 | Intersectable *obj,
|
---|
| 2231 | const Vector3 &pt,
|
---|
| 2232 | const bool addRays)
|
---|
| 2233 | {
|
---|
[1942] | 2234 | // check if we are outside of view space
|
---|
[1932] | 2235 | if (!obj || !viewCell->GetValid())
|
---|
| 2236 | return;
|
---|
[1942] | 2237 |
|
---|
[1932] | 2238 | // if ray not outside of view space
|
---|
| 2239 | float relContribution = 0.0f;
|
---|
| 2240 | float absContribution = 0.0f;
|
---|
| 2241 |
|
---|
[1942] | 2242 | if (obj)
|
---|
| 2243 | {
|
---|
| 2244 | // todo: maybe not correct for kd node pvs
|
---|
[1990] | 2245 | if (addRays)
|
---|
| 2246 | {
|
---|
| 2247 | float pdf = viewCell->GetPvs().AddSampleDirtyCheck(obj, ray.mPdf);
|
---|
| 2248 |
|
---|
| 2249 | if (pdf == ray.mPdf)
|
---|
| 2250 | {
|
---|
| 2251 | absContribution = 1.0f;
|
---|
| 2252 | if (viewCell->GetPvs().RequiresResort())
|
---|
| 2253 | viewCell->GetPvs().SimpleSort();
|
---|
| 2254 | }
|
---|
| 2255 | }
|
---|
| 2256 | else
|
---|
| 2257 | {
|
---|
| 2258 | if (viewCell->GetPvs().GetSampleContribution(
|
---|
| 2259 | obj,
|
---|
| 2260 | ray.mPdf,
|
---|
| 2261 | relContribution))
|
---|
| 2262 | {
|
---|
| 2263 | absContribution = 1.0f;
|
---|
| 2264 | }
|
---|
| 2265 | }
|
---|
| 2266 |
|
---|
[1942] | 2267 | // $$ clear the relative contribution as it is currently not correct anyway
|
---|
| 2268 | relContribution = 0.0f;
|
---|
| 2269 |
|
---|
[1990] | 2270 | if (absContribution == 1.0f)
|
---|
| 2271 | {
|
---|
[1942] | 2272 | ++ ray.mPvsContribution;
|
---|
| 2273 | relContribution = 1.0f;
|
---|
| 2274 |
|
---|
| 2275 |
|
---|
| 2276 | #if CONTRIBUTION_RELATIVE_TO_PVS_SIZE
|
---|
| 2277 | relContribution /= viewcell->GetPvs().GetSize();
|
---|
| 2278 | #endif
|
---|
| 2279 |
|
---|
[1932] | 2280 | #if DIST_WEIGHTED_CONTRIBUTION
|
---|
[1942] | 2281 | // recalculate the contribution - weight the 1.0f contribution by the sqr distance to the
|
---|
| 2282 | // object-> a new contribution in the proximity of the viewcell has a larger weight!
|
---|
| 2283 | relContribution /= SqrDistance(GetViewCellBox(viewcell).Center(),
|
---|
| 2284 | ray.mTermination);
|
---|
| 2285 |
|
---|
[1932] | 2286 | #endif
|
---|
[1942] | 2287 | }
|
---|
| 2288 |
|
---|
[1932] | 2289 | #if SUM_RAY_CONTRIBUTIONS || AVG_RAY_CONTRIBUTIONS
|
---|
[1942] | 2290 | ray.mRelativePvsContribution += relContribution;
|
---|
[1932] | 2291 | #else
|
---|
[1942] | 2292 | // recalculate relative contribution - use max of Rel Contribution
|
---|
| 2293 | if (ray.mRelativePvsContribution < relContribution)
|
---|
| 2294 | ray.mRelativePvsContribution = relContribution;
|
---|
[1932] | 2295 | #endif
|
---|
[1942] | 2296 | }
|
---|
| 2297 |
|
---|
[1932] | 2298 | }
|
---|
| 2299 |
|
---|
| 2300 |
|
---|
[1982] | 2301 | int ViewCellsManager::GetNumViewCells() const
|
---|
| 2302 | {
|
---|
| 2303 | return (int)mViewCells.size();
|
---|
| 2304 | }
|
---|
| 2305 |
|
---|
| 2306 |
|
---|
[1977] | 2307 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 2308 | const bool addRays,
|
---|
[1990] | 2309 | ViewCell *currentViewCell,
|
---|
| 2310 | const bool useHitObjects)
|
---|
[1977] | 2311 | {
|
---|
| 2312 | ray.mPvsContribution = 0;
|
---|
| 2313 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 2314 |
|
---|
| 2315 | if (!ray.mTerminationObject)
|
---|
| 2316 | return 0.0f;
|
---|
| 2317 |
|
---|
| 2318 | // optain pvs entry (can be different from hit object)
|
---|
[1990] | 2319 | Intersectable *terminationObj;
|
---|
[1977] | 2320 |
|
---|
[1990] | 2321 | if (!useHitObjects)
|
---|
| 2322 | terminationObj = GetIntersectable(ray, true);
|
---|
| 2323 | else
|
---|
| 2324 | terminationObj = ray.mTerminationObject;
|
---|
| 2325 |
|
---|
[1977] | 2326 | ComputeViewCellContribution(currentViewCell,
|
---|
| 2327 | ray,
|
---|
| 2328 | terminationObj,
|
---|
| 2329 | ray.mTermination,
|
---|
| 2330 | addRays);
|
---|
| 2331 |
|
---|
| 2332 | #if USE_RAY_LENGTH_AS_CONTRIBUTION
|
---|
| 2333 | float c = 0.0f;
|
---|
| 2334 | if (terminationObj)
|
---|
[1981] | 2335 | c = ray.Length();
|
---|
| 2336 |
|
---|
[1977] | 2337 | ray.mRelativePvsContribution = ray.mPvsContribution = c;
|
---|
| 2338 | return c;
|
---|
| 2339 | #else
|
---|
| 2340 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 2341 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
| 2342 | #endif
|
---|
| 2343 | }
|
---|
| 2344 |
|
---|
| 2345 |
|
---|
[1877] | 2346 | float
|
---|
| 2347 | ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
[1900] | 2348 | const bool addRays,
|
---|
[1990] | 2349 | const bool storeViewCells,
|
---|
| 2350 | const bool useHitObjects)
|
---|
[1790] | 2351 | {
|
---|
[1903] | 2352 | ray.mPvsContribution = 0;
|
---|
| 2353 | ray.mRelativePvsContribution = 0.0f;
|
---|
[1877] | 2354 |
|
---|
[1983] | 2355 | mSamplesStat.mRays++;
|
---|
| 2356 |
|
---|
[1932] | 2357 | if (!ray.mTerminationObject)
|
---|
[1903] | 2358 | return 0.0f;
|
---|
| 2359 |
|
---|
[1932] | 2360 | ViewCellContainer viewCells;
|
---|
[1903] | 2361 |
|
---|
| 2362 | static Ray hray;
|
---|
| 2363 | hray.Init(ray);
|
---|
| 2364 |
|
---|
| 2365 | float tmin = 0, tmax = 1.0;
|
---|
| 2366 |
|
---|
[1942] | 2367 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax)) {
|
---|
| 2368 | // cerr<<"ray outside view space box\n";
|
---|
| 2369 | return 0;
|
---|
| 2370 | }
|
---|
[1903] | 2371 |
|
---|
| 2372 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 2373 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 2374 |
|
---|
| 2375 | ViewCell::NewMail();
|
---|
| 2376 |
|
---|
| 2377 | // traverse the view space subdivision
|
---|
[1932] | 2378 | CastLineSegment(origin, termination, viewCells);
|
---|
[1903] | 2379 |
|
---|
[1990] | 2380 | mSamplesStat.mViewCells += (int)viewCells.size();
|
---|
[1983] | 2381 |
|
---|
[1903] | 2382 | if (storeViewCells)
|
---|
[1877] | 2383 | {
|
---|
[1942] | 2384 | // copy viewcells memory efficiently
|
---|
[1966] | 2385 | #if VSS_STORE_VIEWCELLS
|
---|
[1942] | 2386 | ray.mViewCells.reserve(viewCells.size());
|
---|
| 2387 | ray.mViewCells = viewCells;
|
---|
[1966] | 2388 | #else
|
---|
| 2389 | cerr<<"Vss store viewcells not supported."<<endl;
|
---|
| 2390 | exit(1);
|
---|
| 2391 | #endif
|
---|
[570] | 2392 | }
|
---|
[1903] | 2393 |
|
---|
[1990] | 2394 | Intersectable *terminationObj;
|
---|
[1903] | 2395 |
|
---|
[1990] | 2396 | // obtain pvs entry (can be different from hit object)
|
---|
| 2397 | if (!useHitObjects)
|
---|
| 2398 | terminationObj = GetIntersectable(ray, true);
|
---|
| 2399 | else
|
---|
| 2400 | terminationObj = ray.mTerminationObject;
|
---|
| 2401 |
|
---|
[1932] | 2402 | ViewCellContainer::const_iterator it = viewCells.begin();
|
---|
| 2403 |
|
---|
| 2404 | for (; it != viewCells.end(); ++ it)
|
---|
[664] | 2405 | {
|
---|
[1932] | 2406 | ComputeViewCellContribution(*it,
|
---|
| 2407 | ray,
|
---|
| 2408 | terminationObj,
|
---|
| 2409 | ray.mTermination,
|
---|
| 2410 | addRays);
|
---|
[563] | 2411 | }
|
---|
[1900] | 2412 |
|
---|
[1983] | 2413 | mSamplesStat.mPvsContributions += ray.mPvsContribution;
|
---|
| 2414 | if (ray.mPvsContribution)
|
---|
| 2415 | mSamplesStat.mContributingRays++;
|
---|
| 2416 |
|
---|
[1931] | 2417 | #if AVG_RAY_CONTRIBUTIONS
|
---|
[1932] | 2418 | ray.mRelativePvsContribution /= (float)viewCells.size();
|
---|
[1931] | 2419 | #endif
|
---|
[1946] | 2420 |
|
---|
[1900] | 2421 | #if USE_RAY_LENGTH_AS_CONTRIBUTION
|
---|
[1932] | 2422 | float c = 0.0f;
|
---|
[1942] | 2423 | if (terminationObj)
|
---|
| 2424 | c = ray.Length();
|
---|
[1932] | 2425 | ray.mRelativePvsContribution = ray.mPvsContribution = c;
|
---|
| 2426 | return c;
|
---|
[1900] | 2427 | #else
|
---|
[1942] | 2428 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 2429 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[1900] | 2430 | #endif
|
---|
[468] | 2431 | }
|
---|
| 2432 |
|
---|
| 2433 |
|
---|
[469] | 2434 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 2435 | const int maxSize,
|
---|
[503] | 2436 | VssRayContainer &usedRays,
|
---|
[485] | 2437 | VssRayContainer *savedRays) const
|
---|
[469] | 2438 | {
|
---|
[485] | 2439 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 2440 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 2441 |
|
---|
[485] | 2442 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 2443 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 2444 | {
|
---|
[473] | 2445 | if (Random(1.0f) < prop)
|
---|
[485] | 2446 | usedRays.push_back(*it);
|
---|
| 2447 | else if (savedRays)
|
---|
| 2448 | savedRays->push_back(*it);
|
---|
[469] | 2449 | }
|
---|
| 2450 | }
|
---|
| 2451 |
|
---|
[477] | 2452 |
|
---|
[728] | 2453 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 2454 | {
|
---|
[1709] | 2455 | return (float)mViewCellsTree->GetPvsCost(viewCell);
|
---|
[605] | 2456 | }
|
---|
| 2457 |
|
---|
| 2458 |
|
---|
[477] | 2459 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 2460 | {
|
---|
| 2461 | // if already computed
|
---|
| 2462 | if (mTotalAreaValid)
|
---|
[728] | 2463 | {
|
---|
[470] | 2464 | return mTotalArea;
|
---|
[728] | 2465 | }
|
---|
[470] | 2466 |
|
---|
| 2467 | mTotalArea = 0;
|
---|
| 2468 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2469 |
|
---|
| 2470 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 2471 | {
|
---|
| 2472 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2473 | mTotalArea += GetArea(*it);
|
---|
[480] | 2474 | }
|
---|
| 2475 |
|
---|
[470] | 2476 | mTotalAreaValid = true;
|
---|
| 2477 |
|
---|
| 2478 | return mTotalArea;
|
---|
| 2479 | }
|
---|
| 2480 |
|
---|
[482] | 2481 |
|
---|
[475] | 2482 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2483 | {
|
---|
[660] | 2484 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2485 | }
|
---|
| 2486 |
|
---|
[477] | 2487 |
|
---|
[508] | 2488 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2489 | {
|
---|
[651] | 2490 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2491 | {
|
---|
[651] | 2492 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2493 | }
|
---|
| 2494 | else // no view cells tree, handle view cells "myself"
|
---|
| 2495 | {
|
---|
[1551] | 2496 | int i = 0;
|
---|
| 2497 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2498 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2499 | {
|
---|
[1557] | 2500 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2501 | {
|
---|
[1551] | 2502 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2503 | }
|
---|
[1284] | 2504 | }
|
---|
| 2505 | }
|
---|
[508] | 2506 | }
|
---|
| 2507 |
|
---|
[1416] | 2508 |
|
---|
| 2509 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2510 | const AxisAlignedBox3 *sceneBox,
|
---|
[1760] | 2511 | const bool colorCode,
|
---|
| 2512 | const AxisAlignedPlane *clipPlane
|
---|
[1416] | 2513 | ) const
|
---|
[508] | 2514 | {
|
---|
[482] | 2515 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1763] | 2516 |
|
---|
[482] | 2517 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[1763] | 2518 | {
|
---|
[574] | 2519 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
[1763] | 2520 | {
|
---|
[1571] | 2521 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2522 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2523 | }
|
---|
[482] | 2524 | }
|
---|
| 2525 | }
|
---|
| 2526 |
|
---|
| 2527 |
|
---|
[517] | 2528 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2529 | {
|
---|
| 2530 | // convert to meshes
|
---|
| 2531 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2532 |
|
---|
| 2533 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2534 | {
|
---|
[517] | 2535 | if (!(*it)->GetMesh())
|
---|
[1001] | 2536 | {
|
---|
[517] | 2537 | CreateMesh(*it);
|
---|
[1001] | 2538 | }
|
---|
[503] | 2539 | }
|
---|
| 2540 | }
|
---|
| 2541 |
|
---|
[508] | 2542 |
|
---|
[944] | 2543 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2544 | const bool exportPvs,
|
---|
| 2545 | const ObjectContainer &objects)
|
---|
[564] | 2546 | {
|
---|
[508] | 2547 | return false;
|
---|
| 2548 | }
|
---|
| 2549 |
|
---|
| 2550 |
|
---|
[610] | 2551 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2552 | {
|
---|
[610] | 2553 | mNumActiveViewCells = n;
|
---|
| 2554 | mViewCells.clear();
|
---|
[1545] | 2555 | // implemented in subclasses
|
---|
[610] | 2556 | CollectViewCells();
|
---|
| 2557 | }
|
---|
[508] | 2558 |
|
---|
| 2559 |
|
---|
[1707] | 2560 | void ViewCellsManager::SetViewCellActive(ViewCell *vc) const
|
---|
| 2561 | {
|
---|
| 2562 | ViewCellContainer leaves;
|
---|
| 2563 | // sets the pointers to the currently active view cells
|
---|
| 2564 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2565 |
|
---|
| 2566 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2567 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2568 | {
|
---|
| 2569 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(vc);
|
---|
| 2570 | }
|
---|
| 2571 | }
|
---|
| 2572 |
|
---|
| 2573 |
|
---|
[660] | 2574 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2575 | {
|
---|
[1707] | 2576 | // collect leaf view cells and set the pointers to
|
---|
| 2577 | // the currently active view cells
|
---|
[660] | 2578 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2579 |
|
---|
[660] | 2580 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2581 | {
|
---|
[1707] | 2582 | SetViewCellActive(*it);
|
---|
[660] | 2583 | }
|
---|
| 2584 | }
|
---|
[508] | 2585 |
|
---|
[840] | 2586 |
|
---|
| 2587 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2588 | {
|
---|
| 2589 | return mMaxFilterSize;
|
---|
| 2590 | }
|
---|
| 2591 |
|
---|
[1001] | 2592 |
|
---|
[840] | 2593 | static const bool USE_ASCII = true;
|
---|
| 2594 |
|
---|
[1001] | 2595 |
|
---|
[840] | 2596 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2597 | const ObjectContainer &objects) const
|
---|
| 2598 | {
|
---|
| 2599 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2600 |
|
---|
| 2601 | if (USE_ASCII)
|
---|
| 2602 | {
|
---|
| 2603 | ofstream boxesOut(filename.c_str());
|
---|
| 2604 | if (!boxesOut.is_open())
|
---|
| 2605 | return false;
|
---|
| 2606 |
|
---|
| 2607 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2608 | {
|
---|
| 2609 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2610 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2611 |
|
---|
| 2612 | boxesOut << mi->GetId() << " "
|
---|
| 2613 | << box.Min().x << " "
|
---|
| 2614 | << box.Min().y << " "
|
---|
| 2615 | << box.Min().z << " "
|
---|
| 2616 | << box.Max().x << " "
|
---|
| 2617 | << box.Max().y << " "
|
---|
| 2618 | << box.Max().z << endl;
|
---|
| 2619 | }
|
---|
| 2620 |
|
---|
| 2621 | boxesOut.close();
|
---|
| 2622 | }
|
---|
| 2623 | else
|
---|
| 2624 | {
|
---|
| 2625 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2626 |
|
---|
| 2627 | if (!boxesOut.is_open())
|
---|
| 2628 | return false;
|
---|
| 2629 |
|
---|
| 2630 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2631 | {
|
---|
| 2632 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2633 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2634 | Vector3 bmin = box.Min();
|
---|
| 2635 | Vector3 bmax = box.Max();
|
---|
[850] | 2636 | int id = mi->GetId();
|
---|
[840] | 2637 |
|
---|
[850] | 2638 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2639 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2640 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2641 | }
|
---|
| 2642 |
|
---|
| 2643 | boxesOut.close();
|
---|
| 2644 | }
|
---|
| 2645 |
|
---|
| 2646 | return true;
|
---|
| 2647 | }
|
---|
| 2648 |
|
---|
| 2649 |
|
---|
[850] | 2650 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2651 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2652 | {
|
---|
[850] | 2653 | Vector3 bmin, bmax;
|
---|
| 2654 | int id;
|
---|
[840] | 2655 |
|
---|
[850] | 2656 | if (USE_ASCII)
|
---|
[840] | 2657 | {
|
---|
[850] | 2658 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2659 |
|
---|
[850] | 2660 | if (!boxesIn.is_open())
|
---|
[840] | 2661 | {
|
---|
[850] | 2662 | cout << "failed to open file " << filename << endl;
|
---|
| 2663 | return false;
|
---|
[840] | 2664 | }
|
---|
[850] | 2665 |
|
---|
| 2666 | string buf;
|
---|
| 2667 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2668 | {
|
---|
[850] | 2669 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2670 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2671 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2672 |
|
---|
| 2673 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2674 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2675 | // HACK: set bounding box to new box
|
---|
| 2676 | //mi->mBox = box;
|
---|
| 2677 |
|
---|
| 2678 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2679 | }
|
---|
| 2680 |
|
---|
[850] | 2681 | boxesIn.close();
|
---|
[840] | 2682 | }
|
---|
[850] | 2683 | else
|
---|
[840] | 2684 | {
|
---|
[850] | 2685 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2686 |
|
---|
[850] | 2687 | if (!boxesIn.is_open())
|
---|
| 2688 | return false;
|
---|
| 2689 |
|
---|
| 2690 | while (1)
|
---|
[840] | 2691 | {
|
---|
[850] | 2692 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2693 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2694 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2695 |
|
---|
| 2696 | if (boxesIn.eof())
|
---|
| 2697 | break;
|
---|
| 2698 |
|
---|
| 2699 |
|
---|
| 2700 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2701 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2702 |
|
---|
| 2703 | // HACK: set bounding box to new box
|
---|
| 2704 | //mi->mBox = box;
|
---|
| 2705 | //boxes.push_back(mi);
|
---|
| 2706 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2707 | }
|
---|
| 2708 |
|
---|
[850] | 2709 | boxesIn.close();
|
---|
[840] | 2710 | }
|
---|
| 2711 |
|
---|
| 2712 | return true;
|
---|
[850] | 2713 | }
|
---|
[840] | 2714 |
|
---|
[931] | 2715 |
|
---|
| 2716 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2717 | {
|
---|
| 2718 | return mFilterWidth;
|
---|
| 2719 | }
|
---|
| 2720 |
|
---|
| 2721 |
|
---|
| 2722 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2723 | {
|
---|
| 2724 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2725 | }
|
---|
| 2726 |
|
---|
| 2727 |
|
---|
[1168] | 2728 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
[1709] | 2729 | const float pvsCost,
|
---|
[1168] | 2730 | const int entriesInPvs) const
|
---|
[1002] | 2731 | {
|
---|
[1709] | 2732 | vc->mPvsCost = pvsCost;
|
---|
[1160] | 2733 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2734 |
|
---|
[1002] | 2735 | vc->mPvsSizeValid = true;
|
---|
| 2736 | }
|
---|
| 2737 |
|
---|
| 2738 |
|
---|
[1021] | 2739 | void
|
---|
| 2740 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2741 | KdTree *kdTree,
|
---|
| 2742 | const float viewSpaceFilterSize,
|
---|
| 2743 | const float spatialFilterSize,
|
---|
| 2744 | ObjectPvs &pvs
|
---|
| 2745 | )
|
---|
| 2746 | {
|
---|
| 2747 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2748 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2749 | // in the pvs
|
---|
| 2750 |
|
---|
| 2751 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2752 | // and compute the pvs union
|
---|
| 2753 |
|
---|
| 2754 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2755 | // Vector3 center = m->mBox.Center();
|
---|
[1679] | 2756 |
|
---|
| 2757 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2758 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2759 | if (!ViewCellsConstructed())
|
---|
| 2760 | return;
|
---|
| 2761 |
|
---|
[1679] | 2762 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
[1021] | 2763 |
|
---|
[1679] | 2764 | const bool usePrVS = false;
|
---|
[1021] | 2765 |
|
---|
[1679] | 2766 | if (!usePrVS) {
|
---|
| 2767 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2768 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2769 |
|
---|
[1679] | 2770 | ViewCellContainer viewCells;
|
---|
| 2771 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2772 |
|
---|
| 2773 | // cout<<"box="<<box<<endl;
|
---|
| 2774 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2775 |
|
---|
[1740] | 2776 | for (; it != it_end; ++ it)
|
---|
| 2777 | {
|
---|
| 2778 | ObjectPvs interPvs;
|
---|
[1679] | 2779 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
[1740] | 2780 | ObjectPvs::Merge(interPvs, pvs, (*it)->GetPvs());
|
---|
| 2781 |
|
---|
| 2782 | pvs = interPvs;
|
---|
[1679] | 2783 | }
|
---|
[1740] | 2784 | } else
|
---|
| 2785 | {
|
---|
[1679] | 2786 | PrVs prvs;
|
---|
| 2787 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2788 |
|
---|
| 2789 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2790 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2791 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2792 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2793 | }
|
---|
[1740] | 2794 | }
|
---|
| 2795 | else
|
---|
| 2796 | {
|
---|
[1679] | 2797 | pvs = viewCell->GetPvs();
|
---|
[1740] | 2798 | }
|
---|
[1679] | 2799 |
|
---|
| 2800 | if (spatialFilterSize >=0.0f)
|
---|
| 2801 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2802 |
|
---|
[1021] | 2803 | }
|
---|
| 2804 |
|
---|
| 2805 |
|
---|
| 2806 |
|
---|
| 2807 | void
|
---|
| 2808 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2809 | const float relViewSpaceFilterSize,
|
---|
| 2810 | const float relSpatialFilterSize
|
---|
| 2811 | )
|
---|
| 2812 | {
|
---|
| 2813 |
|
---|
| 2814 | if (!ViewCellsConstructed())
|
---|
| 2815 | return;
|
---|
| 2816 |
|
---|
[1679] | 2817 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1021] | 2818 |
|
---|
[1679] | 2819 | ObjectPvs *newPvs;
|
---|
| 2820 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
[1021] | 2821 |
|
---|
[1679] | 2822 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2823 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
[1715] | 2824 |
|
---|
[1679] | 2825 | int i;
|
---|
| 2826 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2827 | ApplyFilter(*it,
|
---|
| 2828 | kdTree,
|
---|
| 2829 | viewSpaceFilterSize,
|
---|
| 2830 | spatialFilterSize,
|
---|
| 2831 | newPvs[i]
|
---|
| 2832 | );
|
---|
[1679] | 2833 | }
|
---|
[1715] | 2834 |
|
---|
[1679] | 2835 | // now replace all pvss
|
---|
| 2836 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2837 |
|
---|
| 2838 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2839 | pvs.Clear();
|
---|
| 2840 | pvs = newPvs[i];
|
---|
| 2841 | newPvs[i].Clear();
|
---|
[1679] | 2842 | }
|
---|
[1021] | 2843 |
|
---|
[1679] | 2844 | delete [] newPvs;
|
---|
| 2845 | }
|
---|
[1021] | 2846 |
|
---|
[1679] | 2847 |
|
---|
[1021] | 2848 | void
|
---|
| 2849 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2850 | KdTree *kdTree,
|
---|
| 2851 | const float spatialFilterSize,
|
---|
| 2852 | ObjectPvs &pvs
|
---|
| 2853 | )
|
---|
| 2854 | {
|
---|
[1716] | 2855 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2856 | // extended boxes of visible objects
|
---|
| 2857 | Intersectable::NewMail();
|
---|
[1742] | 2858 |
|
---|
| 2859 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 2860 |
|
---|
| 2861 | while (pit.HasMoreEntries())
|
---|
| 2862 | {
|
---|
| 2863 | ObjectPvsEntry entry = pit.Next();
|
---|
[1716] | 2864 |
|
---|
[1742] | 2865 | Intersectable *object = entry.mObject;
|
---|
[1189] | 2866 | object->Mail();
|
---|
[1742] | 2867 | }
|
---|
[1021] | 2868 |
|
---|
| 2869 | ObjectPvs nPvs;
|
---|
[1189] | 2870 | int nPvsSize = 0;
|
---|
[1742] | 2871 |
|
---|
| 2872 | ObjectPvsIterator pit2 = pvs.GetIterator();
|
---|
[1021] | 2873 |
|
---|
[1742] | 2874 | while (pit2.HasMoreEntries())
|
---|
| 2875 | {
|
---|
| 2876 | // now go through the pvs again
|
---|
| 2877 | ObjectPvsEntry entry = pit2.Next();
|
---|
| 2878 | Intersectable *object = entry.mObject;
|
---|
[1021] | 2879 |
|
---|
[1742] | 2880 | // Vector3 center = object->GetBox().Center();
|
---|
| 2881 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2882 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2883 |
|
---|
| 2884 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2885 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2886 |
|
---|
| 2887 | ObjectContainer objects;
|
---|
| 2888 |
|
---|
| 2889 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2890 | kdTree->CollectObjects(box, objects);
|
---|
| 2891 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2892 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2893 | for (; noi != objects.end(); ++ noi)
|
---|
| 2894 | {
|
---|
| 2895 | Intersectable *o = *noi;
|
---|
[1764] | 2896 |
|
---|
[1742] | 2897 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2898 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2899 | nPvsSize ++;
|
---|
| 2900 | }
|
---|
[1021] | 2901 | }
|
---|
[1740] | 2902 |
|
---|
[1764] | 2903 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
[1740] | 2904 | pvs.MergeInPlace(nPvs);
|
---|
[1021] | 2905 | }
|
---|
| 2906 |
|
---|
| 2907 |
|
---|
[1787] | 2908 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2909 | const ViewCellContainer &viewCells) const
|
---|
[1786] | 2910 | {
|
---|
[1787] | 2911 | MergeViewCellsRecursivly(pvs, viewCells, 0, (int)viewCells.size() - 1);
|
---|
[1786] | 2912 | }
|
---|
| 2913 |
|
---|
[1787] | 2914 |
|
---|
| 2915 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2916 | const ViewCellContainer &viewCells,
|
---|
| 2917 | const int leftIdx,
|
---|
| 2918 | const int rightIdx) const
|
---|
| 2919 | {
|
---|
| 2920 | if (leftIdx == rightIdx)
|
---|
| 2921 | {
|
---|
| 2922 | pvs = viewCells[leftIdx]->GetPvs();
|
---|
| 2923 | }
|
---|
| 2924 | else
|
---|
| 2925 | {
|
---|
| 2926 | const int midSplit = (leftIdx + rightIdx) / 2;
|
---|
| 2927 |
|
---|
| 2928 | ObjectPvs leftPvs, rightPvs;
|
---|
| 2929 | MergeViewCellsRecursivly(leftPvs, viewCells, leftIdx, midSplit);
|
---|
| 2930 | MergeViewCellsRecursivly(rightPvs, viewCells, midSplit, rightIdx);
|
---|
| 2931 |
|
---|
| 2932 | ObjectPvs::Merge(pvs, leftPvs, rightPvs);
|
---|
| 2933 | }
|
---|
| 2934 | }
|
---|
| 2935 |
|
---|
| 2936 |
|
---|
[1761] | 2937 | PvsFilterStatistics
|
---|
[1715] | 2938 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
[1877] | 2939 | const bool useViewSpaceFilter,
|
---|
| 2940 | const float filterSize,
|
---|
| 2941 | ObjectPvs &pvs,
|
---|
| 2942 | vector<AxisAlignedBox3> *filteredBoxes
|
---|
| 2943 | )
|
---|
[1715] | 2944 | {
|
---|
[1877] | 2945 | //cout<<"y";
|
---|
[1761] | 2946 | PvsFilterStatistics stats;
|
---|
| 2947 |
|
---|
[1737] | 2948 | AxisAlignedBox3 vbox = GetViewCellBox(viewCell);
|
---|
| 2949 | Vector3 center = vbox.Center();
|
---|
[1786] | 2950 | // copy the PVS
|
---|
[1757] | 2951 | Intersectable::NewMail();
|
---|
[1877] | 2952 | ObjectPvs basePvs = viewCell->GetPvs();
|
---|
[1757] | 2953 | ObjectPvsIterator pit = basePvs.GetIterator();
|
---|
[1742] | 2954 |
|
---|
[1877] | 2955 | pvs.Reserve(viewCell->GetFilteredPvsSize());
|
---|
| 2956 |
|
---|
[1902] | 2957 | if (!mUseKdPvs)
|
---|
| 2958 | {
|
---|
| 2959 | // first mark all objects from this pvs
|
---|
| 2960 | while (pit.HasMoreEntries())
|
---|
| 2961 | {
|
---|
| 2962 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2963 | Intersectable *object = entry.mObject;
|
---|
| 2964 | object->Mail();
|
---|
| 2965 | }
|
---|
[1716] | 2966 | }
|
---|
[1877] | 2967 |
|
---|
[1716] | 2968 | int pvsSize = 0;
|
---|
| 2969 | int nPvsSize = 0;
|
---|
[1761] | 2970 | float samples = (float)basePvs.GetSamples();
|
---|
| 2971 |
|
---|
[1787] | 2972 | Debug<<"f #s="<<samples<<" pvs size = "<<basePvs.GetSize();
|
---|
[1737] | 2973 | // cout<<"Filter size = "<<filterSize<<endl;
|
---|
| 2974 | // cout<<"vbox = "<<vbox<<endl;
|
---|
| 2975 | // cout<<"center = "<<center<<endl;
|
---|
[1716] | 2976 |
|
---|
[1737] | 2977 |
|
---|
[1757] | 2978 | // Minimal number of local samples to take into account
|
---|
| 2979 | // the local sampling density.
|
---|
| 2980 | // The size of the filter is a minimum of the conservative
|
---|
| 2981 | // local sampling density estimate (#rays intersecting teh viewcell and
|
---|
| 2982 | // the object)
|
---|
| 2983 | // and gobal estimate for the view cell
|
---|
| 2984 | // (total #rays intersecting the viewcell)
|
---|
[1824] | 2985 | int minLocalSamples = 2;
|
---|
| 2986 |
|
---|
[1737] | 2987 | float viewCellRadius = 0.5f*Magnitude(vbox.Diagonal());
|
---|
| 2988 |
|
---|
| 2989 | // now compute the filter box around the current viewCell
|
---|
[1757] | 2990 |
|
---|
[1737] | 2991 | if (useViewSpaceFilter) {
|
---|
[1877] | 2992 | // float radius = Max(viewCellRadius/100.0f, avgRadius - viewCellRadius);
|
---|
| 2993 | float radius = viewCellRadius/100.0f;
|
---|
| 2994 | vbox.Enlarge(radius);
|
---|
| 2995 | cout<<"vbox = "<<vbox<<endl;
|
---|
| 2996 | ViewCellContainer viewCells;
|
---|
| 2997 | ComputeBoxIntersections(vbox, viewCells);
|
---|
[1737] | 2998 |
|
---|
[1877] | 2999 | ViewCellContainer::const_iterator it = viewCells.begin(),
|
---|
| 3000 | it_end = viewCells.end();
|
---|
| 3001 | int i = 0;
|
---|
| 3002 | for (i=0; it != it_end; ++ it, ++ i)
|
---|
| 3003 | if ((*it) != viewCell) {
|
---|
| 3004 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 3005 | basePvs.MergeInPlace((*it)->GetPvs());
|
---|
| 3006 | }
|
---|
| 3007 |
|
---|
| 3008 | // update samples and globalC
|
---|
| 3009 | samples = (float)pvs.GetSamples();
|
---|
| 3010 | // cout<<"neighboring viewcells = "<<i-1<<endl;
|
---|
| 3011 | // cout<<"Samples' = "<<samples<<endl;
|
---|
| 3012 | }
|
---|
| 3013 |
|
---|
[1824] | 3014 | // Minimal number of samples so that filtering takes place
|
---|
| 3015 | #define MIN_SAMPLES 50
|
---|
[1877] | 3016 |
|
---|
[1761] | 3017 | if (samples > MIN_SAMPLES) {
|
---|
[1877] | 3018 | float globalC = 2.0f*filterSize/sqrt(samples);
|
---|
| 3019 |
|
---|
| 3020 | pit = basePvs.GetIterator();
|
---|
| 3021 |
|
---|
| 3022 | ObjectContainer objects;
|
---|
| 3023 |
|
---|
| 3024 | while (pit.HasMoreEntries()) {
|
---|
| 3025 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3026 |
|
---|
| 3027 | Intersectable *object = entry.mObject;
|
---|
| 3028 | // compute filter size based on the distance and the numebr of samples
|
---|
| 3029 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 3030 |
|
---|
| 3031 | float distance = Distance(center, box.Center());
|
---|
| 3032 | float globalRadius = distance*globalC;
|
---|
| 3033 |
|
---|
| 3034 | int objectSamples = (int)entry.mData.mSumPdf;
|
---|
| 3035 | float localRadius = MAX_FLOAT;
|
---|
| 3036 |
|
---|
| 3037 | localRadius = filterSize*0.5f*Magnitude(box.Diagonal())/
|
---|
| 3038 | sqrt((float)objectSamples);
|
---|
| 3039 |
|
---|
[1942] | 3040 | // cout<<"os="<<objectSamples<<" lr="<<localRadius<<" gr="<<globalRadius<<endl;
|
---|
[1877] | 3041 |
|
---|
| 3042 | // now compute the filter size
|
---|
| 3043 | float radius;
|
---|
| 3044 |
|
---|
[1824] | 3045 | #if 0
|
---|
[1877] | 3046 | if (objectSamples <= 1) {
|
---|
| 3047 | if (localRadius > globalRadius) {
|
---|
| 3048 | radius = 0.5flRadius;
|
---|
| 3049 | stats.mLocalFilterCount++;
|
---|
| 3050 | } else {
|
---|
| 3051 | radius = globalRadius;
|
---|
| 3052 | stats.mGlobalFilterCount++;
|
---|
| 3053 | }
|
---|
| 3054 | } else {
|
---|
| 3055 | radius = localRadius;
|
---|
| 3056 | stats.mLocalFilterCount++;
|
---|
| 3057 | }
|
---|
[1824] | 3058 | #else
|
---|
[1877] | 3059 | radius = 0.5f*globalRadius + 0.5f*localRadius;
|
---|
[1966] | 3060 |
|
---|
| 3061 | if (localRadius > globalRadius)
|
---|
| 3062 | stats.mLocalFilterCount++;
|
---|
| 3063 | else
|
---|
| 3064 | stats.mGlobalFilterCount++;
|
---|
[1824] | 3065 | #endif
|
---|
[1877] | 3066 |
|
---|
| 3067 | stats.mAvgFilterRadius += radius;
|
---|
| 3068 |
|
---|
| 3069 | // cout<<"box = "<<box<<endl;
|
---|
| 3070 | // cout<<"distance = "<<distance<<endl;
|
---|
| 3071 | // cout<<"radiues = "<<radius<<endl;
|
---|
| 3072 |
|
---|
| 3073 | box.Enlarge(Vector3(radius));
|
---|
| 3074 |
|
---|
| 3075 | if (filteredBoxes)
|
---|
| 3076 | filteredBoxes->push_back(box);
|
---|
| 3077 |
|
---|
| 3078 | objects.clear();
|
---|
| 3079 | // $$ warning collect objects takes only unmailed ones!
|
---|
[1974] | 3080 | if (mUseKdPvsAfterFiltering) {
|
---|
[1989] | 3081 | GetPreprocessor()->mKdTree->CollectKdObjects(box, objects);
|
---|
[1974] | 3082 | } else
|
---|
| 3083 | CollectObjects(box, objects);
|
---|
| 3084 |
|
---|
[1877] | 3085 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 3086 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 3087 | for (; noi != objects.end(); ++ noi) {
|
---|
| 3088 | Intersectable *o = *noi;
|
---|
| 3089 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 3090 | pvs.AddSampleDirty(o, Limits::Small);
|
---|
| 3091 | }
|
---|
| 3092 | }
|
---|
| 3093 | stats.mAvgFilterRadius /= (stats.mLocalFilterCount + stats.mGlobalFilterCount);
|
---|
[1757] | 3094 | }
|
---|
[1761] | 3095 |
|
---|
[1771] | 3096 | Debug<<" nPvs size = "<<pvs.GetSize()<<endl;
|
---|
[1877] | 3097 |
|
---|
[1902] | 3098 | if (!mUseKdPvs)
|
---|
| 3099 | {
|
---|
| 3100 | // copy the base pvs to the new pvs
|
---|
| 3101 | pit = basePvs.GetIterator();
|
---|
| 3102 | while (pit.HasMoreEntries())
|
---|
| 3103 | {
|
---|
| 3104 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3105 | pvs.AddSampleDirty(entry.mObject, entry.mData.mSumPdf);
|
---|
| 3106 | }
|
---|
[1716] | 3107 | }
|
---|
[1877] | 3108 |
|
---|
| 3109 | pvs.SimpleSort();
|
---|
[1771] | 3110 | viewCell->SetFilteredPvsSize(pvs.GetSize());
|
---|
[1740] | 3111 |
|
---|
[1737] | 3112 | Intersectable::NewMail();
|
---|
[1761] | 3113 | return stats;
|
---|
[1715] | 3114 | }
|
---|
[1786] | 3115 |
|
---|
| 3116 |
|
---|
| 3117 |
|
---|
[1571] | 3118 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 3119 | ViewCell *vc,
|
---|
| 3120 | bool colorCode) const
|
---|
[1021] | 3121 | {
|
---|
| 3122 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 3123 |
|
---|
| 3124 | float importance = 0;
|
---|
| 3125 | static Material m;
|
---|
[1760] | 3126 | //cout << "color code: " << colorCode << endl;
|
---|
[1021] | 3127 | switch (mColorCode)
|
---|
| 3128 | {
|
---|
| 3129 | case 0: // Random
|
---|
| 3130 | {
|
---|
| 3131 | if (vcValid)
|
---|
| 3132 | {
|
---|
[1765] | 3133 | m.mDiffuseColor.r = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 3134 | m.mDiffuseColor.g = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 3135 | m.mDiffuseColor.b = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
[1021] | 3136 | }
|
---|
| 3137 | else
|
---|
| 3138 | {
|
---|
| 3139 | m.mDiffuseColor.r = 0.0f;
|
---|
| 3140 | m.mDiffuseColor.g = 1.0f;
|
---|
| 3141 | m.mDiffuseColor.b = 0.0f;
|
---|
| 3142 | }
|
---|
| 3143 |
|
---|
| 3144 | exporter->SetForcedMaterial(m);
|
---|
| 3145 | return;
|
---|
| 3146 | }
|
---|
| 3147 |
|
---|
| 3148 | case 1: // pvs
|
---|
[1763] | 3149 | {
|
---|
[1021] | 3150 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 3151 | {
|
---|
[1763] | 3152 | importance = (float)mViewCellsTree->GetPvsCost(vc) /
|
---|
| 3153 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[1121] | 3154 | }
|
---|
[1021] | 3155 | }
|
---|
| 3156 | break;
|
---|
| 3157 | case 2: // merges
|
---|
| 3158 | {
|
---|
| 3159 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 3160 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 3161 | }
|
---|
| 3162 | break;
|
---|
| 3163 | #if 0
|
---|
| 3164 | case 3: // merge tree differene
|
---|
| 3165 | {
|
---|
| 3166 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 3167 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 3168 |
|
---|
| 3169 | }
|
---|
| 3170 | break;
|
---|
| 3171 | #endif
|
---|
| 3172 | default:
|
---|
| 3173 | break;
|
---|
| 3174 | }
|
---|
| 3175 |
|
---|
| 3176 | // special color code for invalid view cells
|
---|
| 3177 | m.mDiffuseColor.r = importance;
|
---|
[1920] | 3178 | m.mDiffuseColor.b = 1.0f;//vcValid ? 0.0f : 1.0f;
|
---|
| 3179 | m.mDiffuseColor.g = 1.0f - importance;
|
---|
[1021] | 3180 |
|
---|
| 3181 | //Debug << "importance: " << importance << endl;
|
---|
| 3182 | exporter->SetForcedMaterial(m);
|
---|
| 3183 | }
|
---|
| 3184 |
|
---|
| 3185 |
|
---|
[1022] | 3186 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3187 | vector<MergeCandidate> &candidates)
|
---|
| 3188 | {
|
---|
| 3189 | // implemented in subclasses
|
---|
| 3190 | }
|
---|
| 3191 |
|
---|
[1047] | 3192 |
|
---|
[1718] | 3193 | void ViewCellsManager::UpdatePvsForEvaluation()
|
---|
[1608] | 3194 | {
|
---|
[1718] | 3195 | ObjectPvs objPvs;
|
---|
| 3196 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
[1608] | 3197 | }
|
---|
| 3198 |
|
---|
[1168] | 3199 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 3200 | {
|
---|
| 3201 | // terminate traversal
|
---|
| 3202 | if (root->IsLeaf())
|
---|
| 3203 | {
|
---|
[1709] | 3204 | //cout << "updating leaf" << endl;
|
---|
[1168] | 3205 | // we assume that pvs is explicitly stored in leaves
|
---|
| 3206 | pvs = root->GetPvs();
|
---|
[1707] | 3207 | UpdateScalarPvsSize(root, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 3208 | return;
|
---|
| 3209 | }
|
---|
[1709] | 3210 |
|
---|
[1586] | 3211 | ////////////////
|
---|
| 3212 | //-- interior node => propagate pvs up the tree
|
---|
| 3213 |
|
---|
[1168] | 3214 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 3215 |
|
---|
| 3216 | // reset interior pvs
|
---|
[1168] | 3217 | interior->GetPvs().Clear();
|
---|
[1606] | 3218 | // reset recursive pvs
|
---|
[1168] | 3219 | pvs.Clear();
|
---|
[1695] | 3220 |
|
---|
| 3221 | // pvss of child nodes
|
---|
[1168] | 3222 | vector<ObjectPvs> pvsList;
|
---|
[1709] | 3223 | pvsList.resize((int)interior->mChildren.size());
|
---|
[1168] | 3224 |
|
---|
| 3225 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[1709] | 3226 |
|
---|
[1695] | 3227 | int i = 0;
|
---|
[1709] | 3228 |
|
---|
[1695] | 3229 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[1168] | 3230 | {
|
---|
[1586] | 3231 | //////////////////
|
---|
[1168] | 3232 | //-- recursivly compute child pvss
|
---|
[1695] | 3233 | UpdatePvsForEvaluation(*vit, pvsList[i]/*objPvs*/);
|
---|
[1168] | 3234 | }
|
---|
| 3235 |
|
---|
| 3236 | #if 1
|
---|
| 3237 | Intersectable::NewMail();
|
---|
| 3238 |
|
---|
| 3239 | //-- faster way of computing pvs:
|
---|
[1586] | 3240 | //-- construct merged pvs by adding
|
---|
| 3241 | //-- and only those of the next pvs which were not mailed.
|
---|
| 3242 | //-- note: sumpdf is not correct!!
|
---|
| 3243 |
|
---|
[1168] | 3244 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 3245 |
|
---|
| 3246 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 3247 | {
|
---|
[1742] | 3248 | ObjectPvsIterator pit = (*oit).GetIterator();
|
---|
| 3249 |
|
---|
| 3250 | // first mark all object from this pvs
|
---|
| 3251 | while (pit.HasMoreEntries())
|
---|
| 3252 | {
|
---|
| 3253 | ObjectPvsEntry entry = pit.Next();
|
---|
[1168] | 3254 |
|
---|
[1742] | 3255 | Intersectable *intersect = entry.mObject;
|
---|
| 3256 |
|
---|
[1168] | 3257 | if (!intersect->Mailed())
|
---|
[1764] | 3258 | {
|
---|
[1742] | 3259 | pvs.AddSample(intersect, entry.mData.mSumPdf);
|
---|
[1168] | 3260 | intersect->Mail();
|
---|
| 3261 | }
|
---|
| 3262 | }
|
---|
| 3263 | }
|
---|
| 3264 |
|
---|
| 3265 | // store pvs in this node
|
---|
| 3266 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 3267 | {
|
---|
| 3268 | interior->SetPvs(pvs);
|
---|
| 3269 | }
|
---|
| 3270 |
|
---|
| 3271 | // set new pvs size
|
---|
[1707] | 3272 | UpdateScalarPvsSize(interior, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 3273 |
|
---|
[1586] | 3274 | #else
|
---|
| 3275 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 3276 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 3277 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 3278 | #endif
|
---|
| 3279 | }
|
---|
| 3280 |
|
---|
[1174] | 3281 |
|
---|
| 3282 |
|
---|
[1145] | 3283 | /*******************************************************************/
|
---|
| 3284 | /* BspViewCellsManager implementation */
|
---|
| 3285 | /*******************************************************************/
|
---|
[440] | 3286 |
|
---|
[482] | 3287 |
|
---|
[1264] | 3288 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 3289 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 3290 | {
|
---|
[1004] | 3291 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[1640] | 3292 |
|
---|
[587] | 3293 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 3294 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 3295 | }
|
---|
| 3296 |
|
---|
[462] | 3297 |
|
---|
[440] | 3298 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3299 | {
|
---|
| 3300 | return mBspTree->GetRoot() != NULL;
|
---|
| 3301 | }
|
---|
| 3302 |
|
---|
[480] | 3303 |
|
---|
[440] | 3304 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3305 | {
|
---|
| 3306 | return new BspViewCell(mesh);
|
---|
| 3307 | }
|
---|
| 3308 |
|
---|
[480] | 3309 |
|
---|
[574] | 3310 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 3311 | const VssRayContainer &rays)
|
---|
[440] | 3312 | {
|
---|
[1545] | 3313 | // if view cells were already constructed, we can finish
|
---|
[440] | 3314 | if (ViewCellsConstructed())
|
---|
| 3315 | return 0;
|
---|
| 3316 |
|
---|
| 3317 | int sampleContributions = 0;
|
---|
[503] | 3318 |
|
---|
[469] | 3319 | // construct view cells using the collected samples
|
---|
| 3320 | RayContainer constructionRays;
|
---|
| 3321 | VssRayContainer savedRays;
|
---|
[440] | 3322 |
|
---|
[1563] | 3323 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 3324 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 3325 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 3326 |
|
---|
[473] | 3327 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 3328 |
|
---|
[469] | 3329 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 3330 | {
|
---|
[473] | 3331 | if (Random(1.0f) < prop)
|
---|
[469] | 3332 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 3333 | else
|
---|
| 3334 | savedRays.push_back(*it);
|
---|
| 3335 | }
|
---|
[440] | 3336 |
|
---|
[1545] | 3337 | if (!mUsePredefinedViewCells)
|
---|
[503] | 3338 | {
|
---|
| 3339 | // no view cells loaded
|
---|
[587] | 3340 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 3341 | // collect final view cells
|
---|
| 3342 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 3343 | }
|
---|
[469] | 3344 | else
|
---|
[1551] | 3345 | {
|
---|
[1545] | 3346 | // use predefined view cells geometry =>
|
---|
| 3347 | // contruct bsp hierarchy over them
|
---|
[469] | 3348 | mBspTree->Construct(mViewCells);
|
---|
| 3349 | }
|
---|
| 3350 |
|
---|
| 3351 | // destroy rays created only for construction
|
---|
| 3352 | CLEAR_CONTAINER(constructionRays);
|
---|
| 3353 |
|
---|
[440] | 3354 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 3355 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 3356 |
|
---|
[469] | 3357 | // recast rest of the rays
|
---|
[649] | 3358 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3359 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 3360 |
|
---|
[719] | 3361 | // real meshes are contructed at this stage
|
---|
| 3362 | if (0)
|
---|
| 3363 | {
|
---|
| 3364 | cout << "finalizing view cells ... ";
|
---|
| 3365 | FinalizeViewCells(true);
|
---|
| 3366 | cout << "finished" << endl;
|
---|
| 3367 | }
|
---|
| 3368 |
|
---|
[440] | 3369 | return sampleContributions;
|
---|
| 3370 | }
|
---|
| 3371 |
|
---|
[503] | 3372 |
|
---|
[480] | 3373 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 3374 | {
|
---|
[587] | 3375 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 3376 | { // view cells tree constructed
|
---|
[587] | 3377 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 3378 | }
|
---|
| 3379 | else
|
---|
[1545] | 3380 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 3381 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 3382 | }
|
---|
[480] | 3383 | }
|
---|
[468] | 3384 |
|
---|
[503] | 3385 |
|
---|
[471] | 3386 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 3387 | {
|
---|
[591] | 3388 | if (1)
|
---|
| 3389 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 3390 | else
|
---|
[1545] | 3391 | // compute view cell area as subsititute for probability
|
---|
[591] | 3392 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 3393 | }
|
---|
[440] | 3394 |
|
---|
[503] | 3395 |
|
---|
[440] | 3396 |
|
---|
[468] | 3397 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3398 | const Vector3 &termination,
|
---|
| 3399 | ViewCellContainer &viewcells)
|
---|
[440] | 3400 | {
|
---|
[468] | 3401 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 3402 | }
|
---|
| 3403 |
|
---|
| 3404 |
|
---|
[1977] | 3405 | bool BspViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
| 3406 | const Vector3 &termination,
|
---|
| 3407 | ViewCell *viewCell)
|
---|
| 3408 | {
|
---|
| 3409 | return false;
|
---|
| 3410 | }
|
---|
| 3411 |
|
---|
| 3412 |
|
---|
[1551] | 3413 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 3414 | {
|
---|
| 3415 | // save color code
|
---|
| 3416 | const int savedColorCode = mColorCode;
|
---|
| 3417 |
|
---|
[1763] | 3418 | Exporter *exporter;
|
---|
| 3419 |
|
---|
| 3420 | #if 0
|
---|
[1545] | 3421 | // export merged view cells
|
---|
| 3422 | mColorCode = 0; // use random colors
|
---|
| 3423 |
|
---|
[1763] | 3424 | exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[1545] | 3425 |
|
---|
| 3426 | cout << "exporting view cells after merge ... ";
|
---|
| 3427 |
|
---|
| 3428 | if (exporter)
|
---|
| 3429 | {
|
---|
| 3430 | if (mExportGeometry)
|
---|
| 3431 | {
|
---|
| 3432 | exporter->ExportGeometry(objects);
|
---|
| 3433 | }
|
---|
| 3434 |
|
---|
| 3435 | exporter->SetFilled();
|
---|
[1760] | 3436 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3437 |
|
---|
| 3438 | delete exporter;
|
---|
| 3439 | }
|
---|
| 3440 | cout << "finished" << endl;
|
---|
[1763] | 3441 | #endif
|
---|
[1545] | 3442 |
|
---|
| 3443 | // export merged view cells using pvs color coding
|
---|
| 3444 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 3445 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3446 |
|
---|
| 3447 | if (exporter)
|
---|
| 3448 | {
|
---|
| 3449 | if (mExportGeometry)
|
---|
| 3450 | {
|
---|
| 3451 | exporter->ExportGeometry(objects);
|
---|
| 3452 | }
|
---|
| 3453 |
|
---|
| 3454 | exporter->SetFilled();
|
---|
[1760] | 3455 | mColorCode = 1;
|
---|
[1763] | 3456 |
|
---|
[1760] | 3457 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3458 |
|
---|
| 3459 | delete exporter;
|
---|
| 3460 | }
|
---|
| 3461 | cout << "finished" << endl;
|
---|
| 3462 |
|
---|
| 3463 | mColorCode = savedColorCode;
|
---|
| 3464 | }
|
---|
| 3465 |
|
---|
| 3466 |
|
---|
[503] | 3467 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 3468 | const VssRayContainer &rays)
|
---|
| 3469 | {
|
---|
[469] | 3470 | if (!ViewCellsConstructed())
|
---|
[441] | 3471 | {
|
---|
| 3472 | Debug << "view cells not constructed" << endl;
|
---|
| 3473 | return 0;
|
---|
| 3474 | }
|
---|
[590] | 3475 |
|
---|
[1414] | 3476 | // view cells already finished before post processing step,
|
---|
| 3477 | // i.e., because they were loaded from disc
|
---|
[590] | 3478 | if (mViewCellsFinished)
|
---|
| 3479 | {
|
---|
| 3480 | FinalizeViewCells(true);
|
---|
| 3481 | EvaluateViewCellsStats();
|
---|
| 3482 |
|
---|
| 3483 | return 0;
|
---|
| 3484 | }
|
---|
| 3485 |
|
---|
[1444] | 3486 | //////////////////
|
---|
[1414] | 3487 | //-- merge leaves of the view cell hierarchy
|
---|
| 3488 |
|
---|
[649] | 3489 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 3490 | long startTime = GetTime();
|
---|
| 3491 |
|
---|
| 3492 | VssRayContainer postProcessRays;
|
---|
| 3493 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3494 |
|
---|
[592] | 3495 | if (mMergeViewCells)
|
---|
[591] | 3496 | {
|
---|
[660] | 3497 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 3498 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 3499 | }
|
---|
| 3500 | else
|
---|
| 3501 | {
|
---|
[660] | 3502 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 3503 | ViewCell *root;
|
---|
| 3504 | // the spatial merge tree is difficult to build for
|
---|
| 3505 | // this type of construction, as view cells cover several
|
---|
| 3506 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 3507 | if (mUsePredefinedViewCells)
|
---|
| 3508 | {
|
---|
| 3509 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 3510 | }
|
---|
| 3511 | else
|
---|
| 3512 | {
|
---|
| 3513 | // create spatial merge hierarchy
|
---|
| 3514 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 3515 | }
|
---|
| 3516 |
|
---|
[752] | 3517 | mViewCellsTree->SetRoot(root);
|
---|
| 3518 |
|
---|
[1415] | 3519 | // recompute pvs in the whole hierarchy
|
---|
[752] | 3520 | ObjectPvs pvs;
|
---|
| 3521 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 3522 | }
|
---|
[440] | 3523 |
|
---|
[1415] | 3524 | cout << "finished" << endl;
|
---|
| 3525 | cout << "merged view cells in "
|
---|
| 3526 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 3527 |
|
---|
| 3528 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3529 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 3530 |
|
---|
| 3531 |
|
---|
[1418] | 3532 | ////////////////////////
|
---|
[1444] | 3533 | //-- visualization and statistics after merge
|
---|
[1415] | 3534 |
|
---|
[666] | 3535 | if (1)
|
---|
| 3536 | {
|
---|
| 3537 | char mstats[100];
|
---|
[1004] | 3538 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3539 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3540 | }
|
---|
[650] | 3541 |
|
---|
[1551] | 3542 | // recompute view cells and stats
|
---|
| 3543 | ResetViewCells();
|
---|
[660] | 3544 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 3545 |
|
---|
[1551] | 3546 | // visualization of the view cells
|
---|
[1763] | 3547 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 3548 |
|
---|
[719] | 3549 | // compute final meshes and volume / area
|
---|
| 3550 | if (1) FinalizeViewCells(true);
|
---|
[840] | 3551 |
|
---|
[650] | 3552 | return 0;
|
---|
[440] | 3553 | }
|
---|
| 3554 |
|
---|
[477] | 3555 |
|
---|
| 3556 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 3557 | {
|
---|
| 3558 | }
|
---|
| 3559 |
|
---|
| 3560 |
|
---|
[440] | 3561 | int BspViewCellsManager::GetType() const
|
---|
| 3562 | {
|
---|
| 3563 | return BSP;
|
---|
| 3564 | }
|
---|
| 3565 |
|
---|
| 3566 |
|
---|
| 3567 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3568 | const VssRayContainer &sampleRays)
|
---|
[440] | 3569 | {
|
---|
[469] | 3570 | if (!ViewCellsConstructed())
|
---|
| 3571 | return;
|
---|
[574] | 3572 |
|
---|
[1563] | 3573 | const int savedColorCode = mColorCode;
|
---|
[1551] | 3574 |
|
---|
[600] | 3575 | if (1) // export final view cells
|
---|
[440] | 3576 | {
|
---|
[1020] | 3577 | mColorCode = 1; // hack color code
|
---|
[1415] | 3578 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3579 |
|
---|
| 3580 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 3581 |
|
---|
[469] | 3582 | if (exporter)
|
---|
[440] | 3583 | {
|
---|
[600] | 3584 | if (mExportGeometry)
|
---|
[1416] | 3585 | {
|
---|
[600] | 3586 | exporter->ExportGeometry(objects);
|
---|
[1416] | 3587 | }
|
---|
[590] | 3588 |
|
---|
[1760] | 3589 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[469] | 3590 | delete exporter;
|
---|
[440] | 3591 | }
|
---|
[469] | 3592 | cout << "finished" << endl;
|
---|
[503] | 3593 | }
|
---|
[1551] | 3594 |
|
---|
[1545] | 3595 | // reset color code
|
---|
[600] | 3596 | mColorCode = savedColorCode;
|
---|
| 3597 |
|
---|
[1416] | 3598 |
|
---|
| 3599 | //////////////////
|
---|
[469] | 3600 | //-- visualization of the BSP splits
|
---|
[1416] | 3601 |
|
---|
[469] | 3602 | bool exportSplits = false;
|
---|
[1004] | 3603 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3604 |
|
---|
[469] | 3605 | if (exportSplits)
|
---|
[440] | 3606 | {
|
---|
[469] | 3607 | cout << "exporting splits ... ";
|
---|
[477] | 3608 | ExportSplits(objects);
|
---|
[469] | 3609 | cout << "finished" << endl;
|
---|
[440] | 3610 | }
|
---|
[477] | 3611 |
|
---|
[1570] | 3612 | int leafOut;
|
---|
| 3613 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 3614 | const int raysOut = 100;
|
---|
| 3615 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 3616 | }
|
---|
| 3617 |
|
---|
| 3618 |
|
---|
[477] | 3619 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 3620 | {
|
---|
| 3621 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3622 |
|
---|
[503] | 3623 | if (exporter)
|
---|
| 3624 | {
|
---|
[598] | 3625 | //exporter->SetFilled();
|
---|
| 3626 | if (mExportGeometry)
|
---|
[1545] | 3627 | {
|
---|
[598] | 3628 | exporter->ExportGeometry(objects);
|
---|
[1545] | 3629 | }
|
---|
[598] | 3630 |
|
---|
[503] | 3631 | Material m;
|
---|
[440] | 3632 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3633 | exporter->SetForcedMaterial(m);
|
---|
| 3634 | exporter->SetWireframe();
|
---|
[503] | 3635 |
|
---|
[440] | 3636 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 3637 |
|
---|
[1545] | 3638 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 3639 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3640 | exporter->SetForcedMaterial(m);
|
---|
[482] | 3641 | //exporter->ResetForcedMaterial();
|
---|
| 3642 |
|
---|
[440] | 3643 | delete exporter;
|
---|
| 3644 | }
|
---|
| 3645 | }
|
---|
| 3646 |
|
---|
[477] | 3647 |
|
---|
[1570] | 3648 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3649 | const int maxViewCells,
|
---|
| 3650 | const bool sortViewCells,
|
---|
| 3651 | const bool exportPvs,
|
---|
| 3652 | const bool exportRays,
|
---|
| 3653 | const int maxRays,
|
---|
| 3654 | const string prefix,
|
---|
| 3655 | VssRayContainer *visRays)
|
---|
[440] | 3656 | {
|
---|
[1570] | 3657 | if (sortViewCells)
|
---|
| 3658 | { // sort view cells to visualize the largest view cells
|
---|
[1789] | 3659 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1570] | 3660 | }
|
---|
[440] | 3661 |
|
---|
[1545] | 3662 | //////////
|
---|
[1570] | 3663 | //-- some view cells for output
|
---|
[503] | 3664 |
|
---|
[1570] | 3665 | ViewCell::NewMail();
|
---|
| 3666 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 3667 |
|
---|
| 3668 | for (int i = 0; i < limit; ++ i)
|
---|
| 3669 | {
|
---|
| 3670 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 3671 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 3672 |
|
---|
[1570] | 3673 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 3674 | continue;
|
---|
[587] | 3675 |
|
---|
[1570] | 3676 | vc->Mail();
|
---|
[503] | 3677 |
|
---|
[1570] | 3678 | ObjectPvs pvs;
|
---|
| 3679 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 3680 |
|
---|
[1571] | 3681 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 3682 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3683 |
|
---|
[1709] | 3684 | cout << "view cell " << idx << ": pvs cost=" << (int)mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[582] | 3685 |
|
---|
[1570] | 3686 | if (exportRays)
|
---|
| 3687 | {
|
---|
| 3688 | ////////////
|
---|
| 3689 | //-- export rays piercing this view cell
|
---|
[469] | 3690 |
|
---|
[1571] | 3691 | // use rays stored with the view cells
|
---|
| 3692 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 3693 | VssRayContainer collectRays;
|
---|
| 3694 |
|
---|
| 3695 | // collect initial view cells
|
---|
| 3696 | ViewCellContainer leaves;
|
---|
| 3697 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3698 |
|
---|
| 3699 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3700 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 3701 | {
|
---|
[1571] | 3702 | // prepare some rays for output
|
---|
[1696] | 3703 | VssRayContainer::const_iterator rit, rit_end = (*vit)->GetOrCreateRays()->end();
|
---|
| 3704 | for (rit = (*vit)->GetOrCreateRays()->begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 3705 | {
|
---|
| 3706 | collectRays.push_back(*rit);
|
---|
| 3707 | }
|
---|
| 3708 | }
|
---|
| 3709 |
|
---|
| 3710 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3711 |
|
---|
[1570] | 3712 | // prepare some rays for output
|
---|
| 3713 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3714 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3715 | {
|
---|
[1570] | 3716 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3717 | if (p < raysOut)
|
---|
[587] | 3718 | {
|
---|
[1935] | 3719 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3720 | {
|
---|
[1571] | 3721 | vcRays.push_back(*rit);
|
---|
[1580] | 3722 | }
|
---|
[1571] | 3723 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
[1928] | 3724 | {
|
---|
[1571] | 3725 | vcRays2.push_back(*rit);
|
---|
[1928] | 3726 | }
|
---|
[1935] | 3727 | else
|
---|
[1928] | 3728 | {
|
---|
[1571] | 3729 | vcRays3.push_back(*rit);
|
---|
[1928] | 3730 | }
|
---|
[587] | 3731 | }
|
---|
[477] | 3732 | }
|
---|
[1571] | 3733 |
|
---|
| 3734 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3735 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3736 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3737 | }
|
---|
[1570] | 3738 |
|
---|
| 3739 | ////////////////
|
---|
| 3740 | //-- export view cell geometry
|
---|
[587] | 3741 |
|
---|
[478] | 3742 | exporter->SetWireframe();
|
---|
[477] | 3743 |
|
---|
[478] | 3744 | Material m;//= RandomMaterial();
|
---|
| 3745 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3746 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3747 |
|
---|
[1416] | 3748 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3749 | exporter->SetFilled();
|
---|
[469] | 3750 |
|
---|
[1570] | 3751 | if (exportPvs)
|
---|
[478] | 3752 | {
|
---|
[1570] | 3753 | Intersectable::NewMail();
|
---|
[1742] | 3754 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 3755 |
|
---|
| 3756 | while (pit.HasMoreEntries())
|
---|
[1570] | 3757 | {
|
---|
[1742] | 3758 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3759 |
|
---|
| 3760 | // output PVS of view cell
|
---|
| 3761 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 3762 |
|
---|
| 3763 | if (!intersect->Mailed())
|
---|
| 3764 | {
|
---|
| 3765 | intersect->Mail();
|
---|
[1571] | 3766 |
|
---|
[1570] | 3767 | m = RandomMaterial();
|
---|
| 3768 | exporter->SetForcedMaterial(m);
|
---|
| 3769 | exporter->ExportIntersectable(intersect);
|
---|
| 3770 | }
|
---|
[503] | 3771 | }
|
---|
[1570] | 3772 | cout << endl;
|
---|
[477] | 3773 | }
|
---|
[1570] | 3774 |
|
---|
[478] | 3775 | DEL_PTR(exporter);
|
---|
| 3776 | cout << "finished" << endl;
|
---|
[477] | 3777 | }
|
---|
[440] | 3778 | }
|
---|
| 3779 |
|
---|
[441] | 3780 |
|
---|
[693] | 3781 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3782 | {
|
---|
| 3783 | ViewCellContainer leaves;
|
---|
| 3784 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3785 |
|
---|
| 3786 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3787 |
|
---|
| 3788 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3789 | float subdivVol = 0;
|
---|
| 3790 | float newVol = 0;
|
---|
| 3791 |
|
---|
| 3792 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3793 | {
|
---|
| 3794 | BspNodeGeometry geom;
|
---|
[1551] | 3795 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3796 |
|
---|
| 3797 | const float lVol = geom.GetVolume();
|
---|
| 3798 | newVol += lVol;
|
---|
| 3799 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3800 |
|
---|
[1551] | 3801 | const float thres = 0.9f;
|
---|
[694] | 3802 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3803 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3804 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3805 | }
|
---|
| 3806 |
|
---|
| 3807 | Debug << "exact volume: " << vol << endl;
|
---|
| 3808 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3809 | Debug << "new volume: " << newVol << endl;
|
---|
| 3810 | }
|
---|
| 3811 |
|
---|
| 3812 |
|
---|
[580] | 3813 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3814 | ViewCell *vc,
|
---|
[1416] | 3815 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3816 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3817 | ) const
|
---|
[1557] | 3818 | {
|
---|
[660] | 3819 | if (clipPlane)
|
---|
[591] | 3820 | {
|
---|
[1047] | 3821 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3822 |
|
---|
[726] | 3823 | ViewCellContainer leaves;
|
---|
| 3824 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3825 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3826 |
|
---|
[726] | 3827 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3828 | {
|
---|
[726] | 3829 | BspNodeGeometry geom;
|
---|
[681] | 3830 | BspNodeGeometry front;
|
---|
| 3831 | BspNodeGeometry back;
|
---|
[591] | 3832 |
|
---|
[1551] | 3833 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3834 |
|
---|
[1563] | 3835 | const float eps = 0.0001f;
|
---|
[1047] | 3836 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3837 |
|
---|
| 3838 | if (cf == -1)
|
---|
| 3839 | {
|
---|
| 3840 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3841 | }
|
---|
| 3842 | else if (cf == 0)
|
---|
| 3843 | {
|
---|
| 3844 | geom.SplitGeometry(front,
|
---|
| 3845 | back,
|
---|
[1047] | 3846 | plane,
|
---|
[726] | 3847 | mViewSpaceBox,
|
---|
| 3848 | eps);
|
---|
[1563] | 3849 |
|
---|
[726] | 3850 | if (back.Valid())
|
---|
[1563] | 3851 | {
|
---|
[726] | 3852 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3853 | }
|
---|
| 3854 | }
|
---|
[681] | 3855 | }
|
---|
[591] | 3856 | }
|
---|
| 3857 | else
|
---|
| 3858 | {
|
---|
[1563] | 3859 | // export mesh if available
|
---|
| 3860 | // TODO: some bug here?
|
---|
| 3861 | if (1 && vc->GetMesh())
|
---|
| 3862 | {
|
---|
| 3863 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3864 | }
|
---|
| 3865 | else
|
---|
| 3866 | {
|
---|
| 3867 | BspNodeGeometry geom;
|
---|
| 3868 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3869 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3870 | }
|
---|
[591] | 3871 | }
|
---|
[482] | 3872 | }
|
---|
| 3873 |
|
---|
[503] | 3874 |
|
---|
| 3875 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3876 | {
|
---|
[1551] | 3877 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3878 | BspNodeGeometry geom;
|
---|
| 3879 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3880 |
|
---|
[1001] | 3881 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3882 |
|
---|
[840] | 3883 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3884 | vc->SetMesh(mesh);
|
---|
[503] | 3885 | }
|
---|
| 3886 |
|
---|
[551] | 3887 |
|
---|
[587] | 3888 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3889 | const bool createMesh)
|
---|
[502] | 3890 | {
|
---|
[587] | 3891 | float area = 0;
|
---|
| 3892 | float volume = 0;
|
---|
[572] | 3893 |
|
---|
[587] | 3894 | ViewCellContainer leaves;
|
---|
| 3895 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3896 |
|
---|
| 3897 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3898 |
|
---|
[693] | 3899 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3900 | {
|
---|
| 3901 | BspNodeGeometry geom;
|
---|
| 3902 |
|
---|
[1551] | 3903 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3904 |
|
---|
[719] | 3905 | const float lVol = geom.GetVolume();
|
---|
| 3906 | const float lArea = geom.GetArea();
|
---|
[693] | 3907 |
|
---|
| 3908 | area += lArea;
|
---|
| 3909 | volume += lVol;
|
---|
[1551] | 3910 |
|
---|
| 3911 | CreateMesh(*it);
|
---|
[587] | 3912 | }
|
---|
| 3913 |
|
---|
| 3914 | viewCell->SetVolume(volume);
|
---|
| 3915 | viewCell->SetArea(area);
|
---|
[502] | 3916 | }
|
---|
| 3917 |
|
---|
[580] | 3918 |
|
---|
[879] | 3919 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3920 | {
|
---|
[1021] | 3921 | if (!ViewCellsConstructed())
|
---|
[1545] | 3922 | {
|
---|
[587] | 3923 | return NULL;
|
---|
[1545] | 3924 | }
|
---|
[587] | 3925 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3926 | {
|
---|
[587] | 3927 | return NULL;
|
---|
[1545] | 3928 | }
|
---|
[587] | 3929 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3930 | }
|
---|
| 3931 |
|
---|
| 3932 |
|
---|
[587] | 3933 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3934 | vector<MergeCandidate> &candidates)
|
---|
| 3935 | {
|
---|
| 3936 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3937 |
|
---|
| 3938 | if (mUseRaysForMerge)
|
---|
| 3939 | {
|
---|
| 3940 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3941 | }
|
---|
| 3942 | else
|
---|
| 3943 | {
|
---|
| 3944 | vector<BspLeaf *> leaves;
|
---|
| 3945 | mBspTree->CollectLeaves(leaves);
|
---|
| 3946 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3947 | }
|
---|
| 3948 |
|
---|
| 3949 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3950 | }
|
---|
| 3951 |
|
---|
| 3952 |
|
---|
[440] | 3953 |
|
---|
[1047] | 3954 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3955 | const bool exportPvs,
|
---|
| 3956 | const ObjectContainer &objects)
|
---|
[590] | 3957 | {
|
---|
[1551] | 3958 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3959 | {
|
---|
| 3960 | return false;
|
---|
| 3961 | }
|
---|
| 3962 |
|
---|
[590] | 3963 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3964 |
|
---|
[1551] | 3965 | OUT_STREAM stream(filename.c_str());
|
---|
| 3966 |
|
---|
[590] | 3967 | // for output we need unique ids for each view cell
|
---|
| 3968 | CreateUniqueViewCellIds();
|
---|
[503] | 3969 |
|
---|
[590] | 3970 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3971 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3972 |
|
---|
[1551] | 3973 | if (exportPvs)
|
---|
| 3974 | {
|
---|
| 3975 | //////////
|
---|
| 3976 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3977 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3978 |
|
---|
[1551] | 3979 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3980 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3981 |
|
---|
[1551] | 3982 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3983 | {
|
---|
[1563] | 3984 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3985 |
|
---|
[1563] | 3986 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3987 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3988 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3989 | }
|
---|
[590] | 3990 |
|
---|
[1551] | 3991 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3992 | }
|
---|
| 3993 |
|
---|
| 3994 | ///////////
|
---|
| 3995 | //-- export the view cells and the pvs
|
---|
| 3996 |
|
---|
| 3997 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3998 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3999 |
|
---|
| 4000 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 4001 |
|
---|
[590] | 4002 | stream << "</ViewCells>" << endl;
|
---|
| 4003 |
|
---|
[1551] | 4004 | /////////////
|
---|
| 4005 | //-- export the view space hierarchy
|
---|
| 4006 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 4007 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 4008 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 4009 |
|
---|
[590] | 4010 | mBspTree->Export(stream);
|
---|
| 4011 |
|
---|
[1551] | 4012 | // end tags
|
---|
| 4013 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 4014 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 4015 |
|
---|
[1551] | 4016 | stream.close();
|
---|
[590] | 4017 | cout << "finished" << endl;
|
---|
[1551] | 4018 |
|
---|
[590] | 4019 | return true;
|
---|
| 4020 | }
|
---|
| 4021 |
|
---|
| 4022 |
|
---|
[1545] | 4023 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 4024 | {
|
---|
| 4025 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 4026 |
|
---|
| 4027 | // evaluate merge cost for priority traversal
|
---|
[1713] | 4028 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1545] | 4029 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 4030 |
|
---|
| 4031 | float volume = 0;
|
---|
| 4032 | vector<BspLeaf *> leaves;
|
---|
| 4033 | mBspTree->CollectLeaves(leaves);
|
---|
| 4034 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 4035 | ViewCell::NewMail();
|
---|
| 4036 |
|
---|
[1545] | 4037 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 4038 | {
|
---|
| 4039 | BspLeaf *leaf = *lit;
|
---|
| 4040 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 4041 |
|
---|
[1548] | 4042 | if (!vc->Mailed())
|
---|
| 4043 | {
|
---|
| 4044 | vc->Mail();
|
---|
| 4045 | vc->SetMergeCost(0.0f);
|
---|
| 4046 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 4047 |
|
---|
[1548] | 4048 | volume += vc->GetVolume();
|
---|
| 4049 | volume += vc->GetVolume();
|
---|
| 4050 | vcRoot->SetVolume(volume);
|
---|
| 4051 | }
|
---|
[1545] | 4052 | }
|
---|
| 4053 |
|
---|
| 4054 | return vcRoot;
|
---|
| 4055 | }
|
---|
| 4056 |
|
---|
| 4057 |
|
---|
[650] | 4058 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 4059 | {
|
---|
[752] | 4060 | // terminate recursion
|
---|
[650] | 4061 | if (root->IsLeaf())
|
---|
| 4062 | {
|
---|
[752] | 4063 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4064 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4065 | return leaf->GetViewCell();
|
---|
[650] | 4066 | }
|
---|
| 4067 |
|
---|
| 4068 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4069 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4070 |
|
---|
[752] | 4071 | // evaluate merge cost for priority traversal
|
---|
[1713] | 4072 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[650] | 4073 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 4074 |
|
---|
[650] | 4075 | float volume = 0;
|
---|
[649] | 4076 |
|
---|
[650] | 4077 | BspNode *front = interior->GetFront();
|
---|
| 4078 | BspNode *back = interior->GetBack();
|
---|
[649] | 4079 |
|
---|
[752] | 4080 |
|
---|
[1545] | 4081 | ////////////
|
---|
[752] | 4082 | //-- recursivly compute child hierarchies
|
---|
[1545] | 4083 |
|
---|
[650] | 4084 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4085 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4086 |
|
---|
[752] | 4087 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4088 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 4089 |
|
---|
[650] | 4090 | volume += backVc->GetVolume();
|
---|
| 4091 | volume += frontVc->GetVolume();
|
---|
[649] | 4092 |
|
---|
[650] | 4093 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 4094 |
|
---|
[650] | 4095 | return viewCellInterior;
|
---|
[610] | 4096 | }
|
---|
| 4097 |
|
---|
[650] | 4098 |
|
---|
[590] | 4099 | /************************************************************************/
|
---|
| 4100 | /* KdViewCellsManager implementation */
|
---|
| 4101 | /************************************************************************/
|
---|
| 4102 |
|
---|
| 4103 |
|
---|
| 4104 |
|
---|
[1264] | 4105 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 4106 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 4107 | {
|
---|
| 4108 | }
|
---|
| 4109 |
|
---|
[605] | 4110 |
|
---|
[471] | 4111 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 4112 | {
|
---|
[479] | 4113 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 4114 | if (0)
|
---|
| 4115 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 4116 | else
|
---|
| 4117 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 4118 | }
|
---|
| 4119 |
|
---|
| 4120 |
|
---|
| 4121 |
|
---|
[479] | 4122 |
|
---|
[480] | 4123 | void KdViewCellsManager::CollectViewCells()
|
---|
| 4124 | {
|
---|
| 4125 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 4126 | }
|
---|
[479] | 4127 |
|
---|
[519] | 4128 |
|
---|
[574] | 4129 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 4130 | const VssRayContainer &rays)
|
---|
[440] | 4131 | {
|
---|
[441] | 4132 | // if view cells already constructed
|
---|
[440] | 4133 | if (ViewCellsConstructed())
|
---|
| 4134 | return 0;
|
---|
[441] | 4135 |
|
---|
[440] | 4136 | mKdTree->Construct();
|
---|
| 4137 |
|
---|
[480] | 4138 | mTotalAreaValid = false;
|
---|
[469] | 4139 | // create the view cells
|
---|
| 4140 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 4141 | // cast rays
|
---|
[574] | 4142 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 4143 |
|
---|
[479] | 4144 | EvaluateViewCellsStats();
|
---|
[660] | 4145 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 4146 |
|
---|
[440] | 4147 | return 0;
|
---|
| 4148 | }
|
---|
| 4149 |
|
---|
[587] | 4150 |
|
---|
[440] | 4151 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 4152 | {
|
---|
| 4153 | return mKdTree->GetRoot() != NULL;
|
---|
| 4154 | }
|
---|
| 4155 |
|
---|
[1020] | 4156 |
|
---|
[503] | 4157 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 4158 | const VssRayContainer &rays)
|
---|
[440] | 4159 | {
|
---|
| 4160 | return 0;
|
---|
| 4161 | }
|
---|
| 4162 |
|
---|
[1020] | 4163 |
|
---|
[1570] | 4164 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4165 | const int maxViewCells,
|
---|
| 4166 | const bool sortViewCells,
|
---|
| 4167 | const bool exportPvs,
|
---|
| 4168 | const bool exportRays,
|
---|
| 4169 | const int maxRays,
|
---|
| 4170 | const string prefix,
|
---|
| 4171 | VssRayContainer *visRays)
|
---|
| 4172 | {
|
---|
| 4173 | // TODO
|
---|
| 4174 | }
|
---|
| 4175 |
|
---|
| 4176 |
|
---|
[440] | 4177 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4178 | const VssRayContainer &sampleRays)
|
---|
[440] | 4179 | {
|
---|
[441] | 4180 | if (!ViewCellsConstructed())
|
---|
| 4181 | return;
|
---|
| 4182 |
|
---|
[469] | 4183 | // using view cells instead of the kd PVS of objects
|
---|
| 4184 | const bool useViewCells = true;
|
---|
| 4185 | bool exportRays = false;
|
---|
[440] | 4186 |
|
---|
| 4187 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 4188 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 4189 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 4190 |
|
---|
[469] | 4191 | if (useViewCells)
|
---|
[440] | 4192 | {
|
---|
[469] | 4193 | const int leafOut = 10;
|
---|
[503] | 4194 |
|
---|
[469] | 4195 | ViewCell::NewMail();
|
---|
[503] | 4196 |
|
---|
[469] | 4197 | //-- some rays for output
|
---|
| 4198 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 4199 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 4200 |
|
---|
| 4201 | //-- some random view cells and rays for output
|
---|
| 4202 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 4203 |
|
---|
[469] | 4204 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 4205 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 4206 |
|
---|
[469] | 4207 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 4208 | {
|
---|
[469] | 4209 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 4210 | RayContainer vcRays;
|
---|
[503] | 4211 |
|
---|
[469] | 4212 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4213 | #if 0
|
---|
[469] | 4214 | // check whether we can add the current ray to the output rays
|
---|
[503] | 4215 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 4216 | {
|
---|
[469] | 4217 | Ray *ray = sampleRays[k];
|
---|
[503] | 4218 |
|
---|
[469] | 4219 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 4220 | {
|
---|
| 4221 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 4222 |
|
---|
| 4223 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 4224 | {
|
---|
| 4225 | vcRays.push_back(ray);
|
---|
| 4226 | }
|
---|
| 4227 | }
|
---|
[479] | 4228 | }
|
---|
[503] | 4229 | #endif
|
---|
[469] | 4230 | Intersectable::NewMail();
|
---|
[503] | 4231 |
|
---|
[469] | 4232 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 4233 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 4234 |
|
---|
[1570] | 4235 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 4236 | exporter->SetFilled();
|
---|
| 4237 |
|
---|
| 4238 | exporter->SetWireframe();
|
---|
| 4239 | //exporter->SetFilled();
|
---|
[503] | 4240 |
|
---|
[469] | 4241 | Material m;//= RandomMaterial();
|
---|
| 4242 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 4243 | exporter->SetForcedMaterial(m);
|
---|
[503] | 4244 |
|
---|
[469] | 4245 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 4246 | exporter->ExportBox(box);
|
---|
| 4247 |
|
---|
| 4248 | // export rays piercing this view cell
|
---|
[503] | 4249 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 4250 |
|
---|
[469] | 4251 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4252 | exporter->SetForcedMaterial(m);
|
---|
[503] | 4253 |
|
---|
[469] | 4254 | // exporter->SetWireframe();
|
---|
| 4255 | exporter->SetFilled();
|
---|
[503] | 4256 |
|
---|
[1742] | 4257 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
| 4258 |
|
---|
| 4259 | while (pit.HasMoreEntries())
|
---|
| 4260 | {
|
---|
| 4261 | ObjectPvsEntry entry = pit.Next();
|
---|
| 4262 |
|
---|
| 4263 | //-- output PVS of view cell
|
---|
| 4264 | Intersectable *intersect = entry.mObject;
|
---|
[469] | 4265 | if (!intersect->Mailed())
|
---|
| 4266 | {
|
---|
| 4267 | exporter->ExportIntersectable(intersect);
|
---|
| 4268 | intersect->Mail();
|
---|
[503] | 4269 | }
|
---|
[440] | 4270 | }
|
---|
[503] | 4271 |
|
---|
[469] | 4272 | DEL_PTR(exporter);
|
---|
| 4273 | cout << "finished" << endl;
|
---|
[440] | 4274 | }
|
---|
[469] | 4275 |
|
---|
| 4276 | DEL_PTR(rays);
|
---|
[440] | 4277 | }
|
---|
[469] | 4278 | else // using kd PVS of objects
|
---|
| 4279 | {
|
---|
| 4280 | for (int i = 0; i < limit; ++ i)
|
---|
| 4281 | {
|
---|
| 4282 | VssRay *ray = sampleRays[i];
|
---|
[503] | 4283 |
|
---|
[469] | 4284 | // check whether we can add this to the rays
|
---|
[503] | 4285 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 4286 | {
|
---|
| 4287 | if (objects[j] == ray->mTerminationObject)
|
---|
| 4288 | {
|
---|
| 4289 | rays[j].push_back(ray);
|
---|
| 4290 | }
|
---|
| 4291 | }
|
---|
| 4292 | }
|
---|
[440] | 4293 |
|
---|
[503] | 4294 | if (exportRays)
|
---|
[469] | 4295 | {
|
---|
| 4296 | Exporter *exporter = NULL;
|
---|
| 4297 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 4298 | exporter->SetWireframe();
|
---|
| 4299 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 4300 |
|
---|
[1757] | 4301 | for (int i = 0; i < pvsOut; i++)
|
---|
[469] | 4302 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 4303 |
|
---|
| 4304 | exporter->SetFilled();
|
---|
| 4305 | delete exporter;
|
---|
| 4306 | }
|
---|
[440] | 4307 |
|
---|
[503] | 4308 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 4309 | {
|
---|
| 4310 | Intersectable *object = objects[k];
|
---|
[1757] | 4311 | char str[64]; sprintf(str, "viewcell%04d.wrl", k);
|
---|
[440] | 4312 |
|
---|
[1570] | 4313 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 4314 | exporter->SetWireframe();
|
---|
[503] | 4315 |
|
---|
[1736] | 4316 | // matt: no kd pvs
|
---|
| 4317 | /*
|
---|
[1233] | 4318 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 4319 | Intersectable::NewMail();
|
---|
[503] | 4320 |
|
---|
[469] | 4321 | // avoid adding the object to the list
|
---|
| 4322 | object->Mail();
|
---|
| 4323 | ObjectContainer visibleObjects;
|
---|
[503] | 4324 |
|
---|
[1233] | 4325 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 4326 | {
|
---|
[1233] | 4327 | KdNode *node = (*kit).first;
|
---|
[469] | 4328 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 4329 |
|
---|
[469] | 4330 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 4331 | }
|
---|
[503] | 4332 |
|
---|
[469] | 4333 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 4334 | exporter->SetFilled();
|
---|
[503] | 4335 |
|
---|
[469] | 4336 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 4337 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 4338 |
|
---|
[469] | 4339 | Material m;
|
---|
| 4340 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4341 | exporter->SetForcedMaterial(m);
|
---|
| 4342 | exporter->ExportIntersectable(object);
|
---|
[1736] | 4343 | */
|
---|
[469] | 4344 | delete exporter;
|
---|
[440] | 4345 | }
|
---|
[503] | 4346 | }
|
---|
[440] | 4347 | }
|
---|
| 4348 |
|
---|
[469] | 4349 |
|
---|
[580] | 4350 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4351 | {
|
---|
| 4352 | return new KdViewCell(mesh);
|
---|
| 4353 | }
|
---|
[482] | 4354 |
|
---|
[580] | 4355 |
|
---|
| 4356 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4357 | ViewCell *vc,
|
---|
[1416] | 4358 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4359 | const AxisAlignedPlane *clipPlane
|
---|
| 4360 | ) const
|
---|
[482] | 4361 | {
|
---|
[580] | 4362 | ViewCellContainer leaves;
|
---|
| 4363 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4364 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4365 |
|
---|
| 4366 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4367 | {
|
---|
| 4368 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 4369 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 4370 | }
|
---|
[482] | 4371 | }
|
---|
| 4372 |
|
---|
| 4373 |
|
---|
[440] | 4374 | int KdViewCellsManager::GetType() const
|
---|
| 4375 | {
|
---|
| 4376 | return ViewCellsManager::KD;
|
---|
| 4377 | }
|
---|
| 4378 |
|
---|
| 4379 |
|
---|
[441] | 4380 |
|
---|
[440] | 4381 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 4382 | {
|
---|
| 4383 | KdNode *node = leaf;
|
---|
| 4384 |
|
---|
| 4385 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 4386 | node = node->mParent;
|
---|
[1176] | 4387 |
|
---|
[440] | 4388 | return node;
|
---|
| 4389 | }
|
---|
| 4390 |
|
---|
[469] | 4391 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4392 | const Vector3 &termination,
|
---|
| 4393 | ViewCellContainer &viewcells)
|
---|
[466] | 4394 | {
|
---|
[469] | 4395 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 4396 | }
|
---|
| 4397 |
|
---|
[469] | 4398 |
|
---|
[1977] | 4399 | bool KdViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
| 4400 | const Vector3 &termination,
|
---|
| 4401 | ViewCell *viewCell)
|
---|
| 4402 | {
|
---|
| 4403 | return false;
|
---|
| 4404 | }
|
---|
| 4405 |
|
---|
| 4406 |
|
---|
[503] | 4407 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4408 | {
|
---|
[551] | 4409 | // TODO
|
---|
[503] | 4410 | }
|
---|
| 4411 |
|
---|
[580] | 4412 |
|
---|
| 4413 |
|
---|
| 4414 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4415 | vector<MergeCandidate> &candidates)
|
---|
| 4416 | {
|
---|
| 4417 | // TODO
|
---|
| 4418 | }
|
---|
| 4419 |
|
---|
[1021] | 4420 |
|
---|
| 4421 |
|
---|
[503] | 4422 | /**************************************************************************/
|
---|
| 4423 | /* VspBspViewCellsManager implementation */
|
---|
| 4424 | /**************************************************************************/
|
---|
[482] | 4425 |
|
---|
[503] | 4426 |
|
---|
[1264] | 4427 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 4428 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 4429 | {
|
---|
[1004] | 4430 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 4431 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 4432 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 4433 | }
|
---|
| 4434 |
|
---|
[477] | 4435 |
|
---|
[475] | 4436 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 4437 | {
|
---|
| 4438 | }
|
---|
| 4439 |
|
---|
[477] | 4440 |
|
---|
[471] | 4441 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 4442 | {
|
---|
[551] | 4443 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 4444 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 4445 | else
|
---|
| 4446 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 4447 | }
|
---|
| 4448 |
|
---|
[477] | 4449 |
|
---|
[480] | 4450 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 4451 | {
|
---|
[1545] | 4452 | // view cells tree constructed?
|
---|
[581] | 4453 | if (!ViewCellsTreeConstructed())
|
---|
| 4454 | {
|
---|
[590] | 4455 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 4456 | }
|
---|
| 4457 | else
|
---|
[1264] | 4458 | {
|
---|
| 4459 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 4460 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 4461 | }
|
---|
[480] | 4462 | }
|
---|
| 4463 |
|
---|
| 4464 |
|
---|
[1021] | 4465 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4466 | vector<MergeCandidate> &candidates)
|
---|
| 4467 | {
|
---|
| 4468 | cout << "collecting merge candidates ... " << endl;
|
---|
| 4469 |
|
---|
| 4470 | if (mUseRaysForMerge)
|
---|
| 4471 | {
|
---|
| 4472 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 4473 | }
|
---|
| 4474 | else
|
---|
| 4475 | {
|
---|
| 4476 | vector<BspLeaf *> leaves;
|
---|
| 4477 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 4478 |
|
---|
| 4479 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 4480 | }
|
---|
| 4481 |
|
---|
| 4482 | cout << "fininshed collecting candidates" << endl;
|
---|
| 4483 | }
|
---|
| 4484 |
|
---|
| 4485 |
|
---|
[442] | 4486 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4487 | {
|
---|
| 4488 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 4489 | }
|
---|
| 4490 |
|
---|
[462] | 4491 |
|
---|
[442] | 4492 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4493 | {
|
---|
| 4494 | return new BspViewCell(mesh);
|
---|
| 4495 | }
|
---|
| 4496 |
|
---|
[569] | 4497 |
|
---|
[574] | 4498 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 4499 | const VssRayContainer &rays)
|
---|
[442] | 4500 | {
|
---|
[710] | 4501 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4502 |
|
---|
[503] | 4503 | // if view cells were already constructed
|
---|
| 4504 | if (ViewCellsConstructed())
|
---|
[1545] | 4505 | {
|
---|
[503] | 4506 | return 0;
|
---|
[1545] | 4507 | }
|
---|
[442] | 4508 |
|
---|
[503] | 4509 | int sampleContributions = 0;
|
---|
| 4510 | VssRayContainer sampleRays;
|
---|
| 4511 |
|
---|
[1545] | 4512 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 4513 |
|
---|
[660] | 4514 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 4515 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 4516 |
|
---|
[1545] | 4517 | VssRayContainer savedRays;
|
---|
[487] | 4518 |
|
---|
[1545] | 4519 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4520 | {
|
---|
| 4521 | VssRayContainer constructionRays;
|
---|
| 4522 |
|
---|
| 4523 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 4524 |
|
---|
[1545] | 4525 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 4526 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 4527 |
|
---|
[667] | 4528 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 4529 | }
|
---|
[666] | 4530 | else
|
---|
[1221] | 4531 | {
|
---|
[1545] | 4532 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 4533 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 4534 | }
|
---|
[667] | 4535 |
|
---|
[490] | 4536 | // collapse invalid regions
|
---|
[491] | 4537 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 4538 | long startTime = GetTime();
|
---|
| 4539 |
|
---|
[1002] | 4540 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 4541 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4542 | << " seconds" << endl;
|
---|
| 4543 |
|
---|
[495] | 4544 | cout << "finished" << endl;
|
---|
[503] | 4545 |
|
---|
[1444] | 4546 | /////////////////
|
---|
[1221] | 4547 | //-- stats after construction
|
---|
| 4548 |
|
---|
[660] | 4549 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 4550 |
|
---|
[480] | 4551 | ResetViewCells();
|
---|
[660] | 4552 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 4553 |
|
---|
[491] | 4554 |
|
---|
[1444] | 4555 | //////////////////////
|
---|
[1545] | 4556 | //-- recast the rest of the rays
|
---|
[1570] | 4557 |
|
---|
[495] | 4558 | startTime = GetTime();
|
---|
[503] | 4559 |
|
---|
[491] | 4560 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 4561 |
|
---|
| 4562 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4563 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 4564 |
|
---|
[491] | 4565 | cout << "finished" << endl;
|
---|
| 4566 |
|
---|
[503] | 4567 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 4568 | << " secs" << endl;
|
---|
[442] | 4569 |
|
---|
[485] | 4570 | cout << "construction finished" << endl;
|
---|
[503] | 4571 |
|
---|
[719] | 4572 | if (0)
|
---|
[1545] | 4573 | { ////////
|
---|
[1077] | 4574 | //-- real meshes are contructed at this stage
|
---|
[1768] | 4575 |
|
---|
[719] | 4576 | cout << "finalizing view cells ... ";
|
---|
| 4577 | FinalizeViewCells(true);
|
---|
| 4578 | cout << "finished" << endl;
|
---|
| 4579 | }
|
---|
| 4580 |
|
---|
[442] | 4581 | return sampleContributions;
|
---|
| 4582 | }
|
---|
| 4583 |
|
---|
[489] | 4584 |
|
---|
[503] | 4585 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 4586 | const ObjectContainer &objects)
|
---|
[475] | 4587 | {
|
---|
[442] | 4588 | int vcSize = 0;
|
---|
| 4589 | int pvsSize = 0;
|
---|
| 4590 |
|
---|
[650] | 4591 | //-- merge view cells
|
---|
| 4592 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 4593 | long startTime = GetTime();
|
---|
| 4594 |
|
---|
| 4595 |
|
---|
[597] | 4596 | if (mMergeViewCells)
|
---|
| 4597 | {
|
---|
| 4598 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 4599 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 4600 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 4601 | }
|
---|
| 4602 | else
|
---|
| 4603 | {
|
---|
[710] | 4604 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4605 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 4606 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 4607 |
|
---|
| 4608 | // compute pvs
|
---|
| 4609 | ObjectPvs pvs;
|
---|
| 4610 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 4611 | }
|
---|
[442] | 4612 |
|
---|
[666] | 4613 | if (1)
|
---|
| 4614 | {
|
---|
| 4615 | char mstats[100];
|
---|
[752] | 4616 | ObjectPvs pvs;
|
---|
| 4617 |
|
---|
[1004] | 4618 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 4619 | mViewCellsTree->ExportStats(mstats);
|
---|
| 4620 | }
|
---|
[485] | 4621 |
|
---|
[650] | 4622 | cout << "merged view cells in "
|
---|
| 4623 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 4624 |
|
---|
[650] | 4625 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 4626 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 4627 |
|
---|
| 4628 |
|
---|
[1444] | 4629 | //////////////////
|
---|
| 4630 | //-- stats and visualizations
|
---|
| 4631 |
|
---|
[600] | 4632 | int savedColorCode = mColorCode;
|
---|
| 4633 |
|
---|
[660] | 4634 | // get currently active view cell set
|
---|
| 4635 | ResetViewCells();
|
---|
| 4636 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 4637 |
|
---|
[1616] | 4638 | if (mShowVisualization) // export merged view cells
|
---|
[483] | 4639 | {
|
---|
[600] | 4640 | mColorCode = 0;
|
---|
[744] | 4641 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 4642 |
|
---|
[485] | 4643 | cout << "exporting view cells after merge ... ";
|
---|
| 4644 |
|
---|
| 4645 | if (exporter)
|
---|
[483] | 4646 | {
|
---|
[600] | 4647 | if (0)
|
---|
| 4648 | exporter->SetWireframe();
|
---|
| 4649 | else
|
---|
| 4650 | exporter->SetFilled();
|
---|
| 4651 |
|
---|
[1760] | 4652 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[600] | 4653 |
|
---|
[485] | 4654 | if (mExportGeometry)
|
---|
[483] | 4655 | {
|
---|
[485] | 4656 | Material m;
|
---|
| 4657 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4658 | exporter->SetForcedMaterial(m);
|
---|
| 4659 | exporter->SetFilled();
|
---|
[442] | 4660 |
|
---|
[485] | 4661 | exporter->ExportGeometry(objects);
|
---|
[442] | 4662 | }
|
---|
[485] | 4663 |
|
---|
[600] | 4664 | delete exporter;
|
---|
| 4665 | }
|
---|
| 4666 | cout << "finished" << endl;
|
---|
| 4667 | }
|
---|
| 4668 |
|
---|
[1616] | 4669 | if (mShowVisualization)
|
---|
[600] | 4670 | {
|
---|
[1416] | 4671 | // use pvs size for color coding
|
---|
| 4672 | mColorCode = 1;
|
---|
[744] | 4673 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 4674 |
|
---|
[600] | 4675 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 4676 |
|
---|
| 4677 | if (exporter)
|
---|
| 4678 | {
|
---|
[1416] | 4679 | exporter->SetFilled();
|
---|
[598] | 4680 |
|
---|
[1760] | 4681 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[598] | 4682 |
|
---|
[600] | 4683 | if (mExportGeometry)
|
---|
| 4684 | {
|
---|
| 4685 | Material m;
|
---|
| 4686 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4687 | exporter->SetForcedMaterial(m);
|
---|
| 4688 | exporter->SetFilled();
|
---|
| 4689 |
|
---|
| 4690 | exporter->ExportGeometry(objects);
|
---|
| 4691 | }
|
---|
| 4692 |
|
---|
[485] | 4693 | delete exporter;
|
---|
[442] | 4694 | }
|
---|
[485] | 4695 | cout << "finished" << endl;
|
---|
[442] | 4696 | }
|
---|
[600] | 4697 |
|
---|
| 4698 | mColorCode = savedColorCode;
|
---|
[503] | 4699 | }
|
---|
[475] | 4700 |
|
---|
[503] | 4701 |
|
---|
[564] | 4702 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 4703 | const ObjectContainer &objects)
|
---|
[503] | 4704 | {
|
---|
[485] | 4705 | mRenderer->RenderScene();
|
---|
[1616] | 4706 |
|
---|
[503] | 4707 | SimulationStatistics ss;
|
---|
[485] | 4708 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 4709 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 4710 |
|
---|
[1414] | 4711 | const long startTime = GetTime();
|
---|
[489] | 4712 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 4713 |
|
---|
| 4714 | // refining the merged view cells
|
---|
[580] | 4715 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 4716 |
|
---|
[442] | 4717 | //-- stats and visualizations
|
---|
| 4718 | cout << "finished" << endl;
|
---|
[485] | 4719 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 4720 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 4721 |
|
---|
[485] | 4722 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 4723 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 4724 | }
|
---|
[495] | 4725 |
|
---|
[517] | 4726 |
|
---|
[503] | 4727 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4728 | const VssRayContainer &rays)
|
---|
[840] | 4729 | {
|
---|
[503] | 4730 | if (!ViewCellsConstructed())
|
---|
| 4731 | {
|
---|
[517] | 4732 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4733 | return 0;
|
---|
| 4734 | }
|
---|
[520] | 4735 |
|
---|
[609] | 4736 | // view cells already finished before post processing step
|
---|
| 4737 | // (i.e. because they were loaded)
|
---|
[520] | 4738 | if (mViewCellsFinished)
|
---|
[542] | 4739 | {
|
---|
[551] | 4740 | FinalizeViewCells(true);
|
---|
[542] | 4741 | EvaluateViewCellsStats();
|
---|
[577] | 4742 |
|
---|
[517] | 4743 | return 0;
|
---|
[542] | 4744 | }
|
---|
[448] | 4745 |
|
---|
[710] | 4746 | // check if new view cells turned invalid
|
---|
| 4747 | int minPvs, maxPvs;
|
---|
[564] | 4748 |
|
---|
[710] | 4749 | if (0)
|
---|
| 4750 | {
|
---|
| 4751 | minPvs = mMinPvsSize;
|
---|
| 4752 | maxPvs = mMaxPvsSize;
|
---|
| 4753 | }
|
---|
| 4754 | else
|
---|
| 4755 | {
|
---|
[1414] | 4756 | // problem matt: why did I start here from zero?
|
---|
| 4757 | minPvs = 0;
|
---|
[710] | 4758 | maxPvs = mMaxPvsSize;
|
---|
| 4759 | }
|
---|
[720] | 4760 |
|
---|
[710] | 4761 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4762 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4763 |
|
---|
| 4764 | SetValidity(minPvs, maxPvs);
|
---|
| 4765 |
|
---|
[574] | 4766 | // update valid view space according to valid view cells
|
---|
[720] | 4767 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4768 |
|
---|
[720] | 4769 | // area has to be recomputed
|
---|
[574] | 4770 | mTotalAreaValid = false;
|
---|
[517] | 4771 | VssRayContainer postProcessRays;
|
---|
[605] | 4772 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4773 |
|
---|
[517] | 4774 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4775 |
|
---|
[1444] | 4776 | //////////
|
---|
[1768] | 4777 | //-- merge neighbouring view cells
|
---|
[597] | 4778 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4779 |
|
---|
[1444] | 4780 | // refines the merged view cells
|
---|
[720] | 4781 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4782 |
|
---|
[1444] | 4783 |
|
---|
| 4784 | ///////////
|
---|
[660] | 4785 | //-- render simulation after merge + refine
|
---|
[1414] | 4786 |
|
---|
[1415] | 4787 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4788 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4789 | SimulationStatistics ss;
|
---|
| 4790 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4791 | cout << ss << endl;
|
---|
[1414] | 4792 |
|
---|
[1843] | 4793 | if (0) CompressViewCells();
|
---|
| 4794 |
|
---|
[517] | 4795 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4796 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4797 |
|
---|
[574] | 4798 | // recompute view cell list and statistics
|
---|
[520] | 4799 | ResetViewCells();
|
---|
| 4800 |
|
---|
[719] | 4801 | // compute final meshes and volume / area
|
---|
| 4802 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4803 |
|
---|
[503] | 4804 | return 0;
|
---|
[442] | 4805 | }
|
---|
| 4806 |
|
---|
[490] | 4807 |
|
---|
[442] | 4808 | int VspBspViewCellsManager::GetType() const
|
---|
| 4809 | {
|
---|
| 4810 | return VSP_BSP;
|
---|
| 4811 | }
|
---|
| 4812 |
|
---|
| 4813 |
|
---|
[650] | 4814 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4815 | {
|
---|
[752] | 4816 | // terminate recursion
|
---|
[650] | 4817 | if (root->IsLeaf())
|
---|
| 4818 | {
|
---|
[752] | 4819 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4820 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4821 | return leaf->GetViewCell();
|
---|
[650] | 4822 | }
|
---|
| 4823 |
|
---|
[752] | 4824 |
|
---|
[650] | 4825 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4826 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4827 |
|
---|
[752] | 4828 | // evaluate merge cost for priority traversal
|
---|
[650] | 4829 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4830 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4831 |
|
---|
[650] | 4832 | float volume = 0;
|
---|
| 4833 |
|
---|
| 4834 | BspNode *front = interior->GetFront();
|
---|
| 4835 | BspNode *back = interior->GetBack();
|
---|
[649] | 4836 |
|
---|
[752] | 4837 |
|
---|
| 4838 | ObjectPvs frontPvs, backPvs;
|
---|
| 4839 |
|
---|
| 4840 | //-- recursivly compute child hierarchies
|
---|
[650] | 4841 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4842 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4843 |
|
---|
[752] | 4844 |
|
---|
| 4845 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4846 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4847 |
|
---|
| 4848 | volume += backVc->GetVolume();
|
---|
| 4849 | volume += frontVc->GetVolume();
|
---|
| 4850 |
|
---|
| 4851 | viewCellInterior->SetVolume(volume);
|
---|
| 4852 |
|
---|
| 4853 | return viewCellInterior;
|
---|
[609] | 4854 | }
|
---|
| 4855 |
|
---|
| 4856 |
|
---|
[490] | 4857 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4858 | {
|
---|
| 4859 | if (!ViewCellsConstructed())
|
---|
| 4860 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4861 |
|
---|
| 4862 | // TODO: set reasonable limit
|
---|
| 4863 | const int limit = 20;
|
---|
| 4864 |
|
---|
| 4865 | for (int i = 0; i < limit; ++ i)
|
---|
| 4866 | {
|
---|
[542] | 4867 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4868 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4869 | {
|
---|
| 4870 | return true;
|
---|
| 4871 | }
|
---|
| 4872 | }
|
---|
[997] | 4873 |
|
---|
[490] | 4874 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4875 | return false;
|
---|
| 4876 | }
|
---|
| 4877 |
|
---|
| 4878 |
|
---|
| 4879 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4880 | {
|
---|
[1551] | 4881 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4882 | // validy update in preprocessor for all managers)
|
---|
| 4883 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4884 |
|
---|
[1551] | 4885 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4886 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4887 | }
|
---|
| 4888 |
|
---|
| 4889 |
|
---|
[442] | 4890 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4891 | const VssRayContainer &sampleRays)
|
---|
[442] | 4892 | {
|
---|
| 4893 | if (!ViewCellsConstructed())
|
---|
| 4894 | return;
|
---|
| 4895 |
|
---|
[485] | 4896 | VssRayContainer visRays;
|
---|
| 4897 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4898 |
|
---|
[1551] | 4899 | if (1)
|
---|
[1047] | 4900 | {
|
---|
[1416] | 4901 | //////////////////
|
---|
| 4902 | //-- export final view cell partition
|
---|
| 4903 |
|
---|
[1020] | 4904 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4905 |
|
---|
[442] | 4906 | if (exporter)
|
---|
| 4907 | {
|
---|
[580] | 4908 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4909 | if (0)
|
---|
[1563] | 4910 | { // export view space box
|
---|
[542] | 4911 | exporter->SetWireframe();
|
---|
| 4912 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4913 | exporter->SetFilled();
|
---|
| 4914 | }
|
---|
| 4915 |
|
---|
[1052] | 4916 | Material m;
|
---|
| 4917 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4918 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4919 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4920 |
|
---|
| 4921 | exporter->SetForcedMaterial(m);
|
---|
| 4922 |
|
---|
[1563] | 4923 | if (1 && mExportGeometry)
|
---|
[542] | 4924 | {
|
---|
[485] | 4925 | exporter->ExportGeometry(objects);
|
---|
[542] | 4926 | }
|
---|
[489] | 4927 |
|
---|
[1047] | 4928 | if (0 && mExportRays)
|
---|
[489] | 4929 | {
|
---|
[1052] | 4930 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4931 | }
|
---|
[1760] | 4932 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1020] | 4933 |
|
---|
[442] | 4934 | delete exporter;
|
---|
[580] | 4935 | cout << "finished" << endl;
|
---|
[442] | 4936 | }
|
---|
[557] | 4937 | }
|
---|
[503] | 4938 |
|
---|
[1551] | 4939 | ////////////////
|
---|
[442] | 4940 | //-- visualization of the BSP splits
|
---|
[1551] | 4941 |
|
---|
[442] | 4942 | bool exportSplits = false;
|
---|
[1004] | 4943 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4944 |
|
---|
[442] | 4945 | if (exportSplits)
|
---|
| 4946 | {
|
---|
| 4947 | cout << "exporting splits ... ";
|
---|
[485] | 4948 | ExportSplits(objects, visRays);
|
---|
[442] | 4949 | cout << "finished" << endl;
|
---|
| 4950 | }
|
---|
| 4951 |
|
---|
[1551] | 4952 | ////////
|
---|
[542] | 4953 | //-- export single view cells
|
---|
[1570] | 4954 |
|
---|
| 4955 | int leafOut;
|
---|
| 4956 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4957 | const int raysOut = 100;
|
---|
| 4958 |
|
---|
| 4959 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4960 | }
|
---|
| 4961 |
|
---|
[503] | 4962 |
|
---|
[485] | 4963 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4964 | const VssRayContainer &rays)
|
---|
[442] | 4965 | {
|
---|
| 4966 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4967 |
|
---|
[503] | 4968 | if (exporter)
|
---|
| 4969 | {
|
---|
| 4970 | Material m;
|
---|
[442] | 4971 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4972 | exporter->SetForcedMaterial(m);
|
---|
| 4973 | exporter->SetWireframe();
|
---|
[503] | 4974 |
|
---|
[448] | 4975 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4976 |
|
---|
| 4977 | // take forced material, else big scenes cannot be viewed
|
---|
| 4978 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4979 | exporter->SetForcedMaterial(m);
|
---|
| 4980 | exporter->SetFilled();
|
---|
| 4981 |
|
---|
| 4982 | exporter->ResetForcedMaterial();
|
---|
[503] | 4983 |
|
---|
[442] | 4984 | // export rays
|
---|
[485] | 4985 | if (mExportRays)
|
---|
[1545] | 4986 | {
|
---|
[485] | 4987 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4988 | }
|
---|
[503] | 4989 |
|
---|
[485] | 4990 | if (mExportGeometry)
|
---|
[1545] | 4991 | {
|
---|
[442] | 4992 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4993 | }
|
---|
[442] | 4994 | delete exporter;
|
---|
| 4995 | }
|
---|
| 4996 | }
|
---|
| 4997 |
|
---|
[503] | 4998 |
|
---|
[1570] | 4999 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5000 | const int maxViewCells,
|
---|
| 5001 | const bool sortViewCells,
|
---|
| 5002 | const bool exportPvs,
|
---|
| 5003 | const bool exportRays,
|
---|
| 5004 | const int maxRays,
|
---|
| 5005 | const string prefix,
|
---|
| 5006 | VssRayContainer *visRays)
|
---|
| 5007 | {
|
---|
[694] | 5008 | if (sortViewCells)
|
---|
[801] | 5009 | {
|
---|
[1570] | 5010 | // sort view cells to visualize the largest view cells
|
---|
[1789] | 5011 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[801] | 5012 | }
|
---|
| 5013 |
|
---|
[1566] | 5014 | //////////
|
---|
[1570] | 5015 | //-- some view cells for output
|
---|
[483] | 5016 |
|
---|
[1570] | 5017 | ViewCell::NewMail();
|
---|
| 5018 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 5019 |
|
---|
[478] | 5020 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 5021 | {
|
---|
[478] | 5022 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 5023 |
|
---|
[1570] | 5024 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 5025 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 5026 |
|
---|
[1570] | 5027 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 5028 | continue;
|
---|
| 5029 |
|
---|
| 5030 | vc->Mail();
|
---|
| 5031 |
|
---|
[801] | 5032 | ObjectPvs pvs;
|
---|
| 5033 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 5034 |
|
---|
[1570] | 5035 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 5036 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5037 |
|
---|
[1709] | 5038 | const float pvsCost = mViewCellsTree->GetPvsCost(vc);
|
---|
| 5039 | cout << "view cell " << vc->GetId() << ": pvs cost=" << pvsCost << endl;
|
---|
[587] | 5040 |
|
---|
[1570] | 5041 | if (exportRays)
|
---|
[442] | 5042 | {
|
---|
[1566] | 5043 | ////////////
|
---|
| 5044 | //-- export rays piercing this view cell
|
---|
| 5045 |
|
---|
| 5046 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 5047 | VssRayContainer vcRays;
|
---|
| 5048 | VssRayContainer collectRays;
|
---|
[639] | 5049 |
|
---|
[1566] | 5050 | // collect initial view cells
|
---|
[1551] | 5051 | ViewCellContainer leaves;
|
---|
| 5052 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 5053 |
|
---|
[1551] | 5054 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 5055 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 5056 | {
|
---|
[1551] | 5057 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5058 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 5059 |
|
---|
[1551] | 5060 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 5061 | {
|
---|
[1551] | 5062 | collectRays.push_back(*rit);
|
---|
[639] | 5063 | }
|
---|
[1551] | 5064 | }
|
---|
[801] | 5065 |
|
---|
[1570] | 5066 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 5067 |
|
---|
[1566] | 5068 | // prepare some rays for output
|
---|
[1551] | 5069 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 5070 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 5071 | {
|
---|
[1566] | 5072 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 5073 |
|
---|
| 5074 | if (p < raysOut)
|
---|
[1566] | 5075 | {
|
---|
[1551] | 5076 | vcRays.push_back(*rit);
|
---|
[1566] | 5077 | }
|
---|
[639] | 5078 | }
|
---|
| 5079 |
|
---|
[1551] | 5080 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 5081 | }
|
---|
[639] | 5082 |
|
---|
[1416] | 5083 | ////////////////
|
---|
[1020] | 5084 | //-- export view cell geometry
|
---|
[1416] | 5085 |
|
---|
[478] | 5086 | exporter->SetWireframe();
|
---|
[442] | 5087 |
|
---|
[478] | 5088 | Material m;//= RandomMaterial();
|
---|
| 5089 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5090 | exporter->SetForcedMaterial(m);
|
---|
[442] | 5091 |
|
---|
[1416] | 5092 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 5093 | exporter->SetFilled();
|
---|
[503] | 5094 |
|
---|
[1570] | 5095 | if (exportPvs)
|
---|
[574] | 5096 | {
|
---|
[801] | 5097 | Intersectable::NewMail();
|
---|
[1570] | 5098 |
|
---|
[1742] | 5099 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 5100 |
|
---|
[1570] | 5101 | cout << endl;
|
---|
[1742] | 5102 |
|
---|
[639] | 5103 | // output PVS of view cell
|
---|
[1742] | 5104 | while (pit.HasMoreEntries())
|
---|
| 5105 | {
|
---|
| 5106 | ObjectPvsEntry entry = pit.Next();
|
---|
| 5107 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 5108 |
|
---|
[639] | 5109 | if (!intersect->Mailed())
|
---|
| 5110 | {
|
---|
[1570] | 5111 | intersect->Mail();
|
---|
[1571] | 5112 |
|
---|
[643] | 5113 | m = RandomMaterial();
|
---|
| 5114 | exporter->SetForcedMaterial(m);
|
---|
[639] | 5115 | exporter->ExportIntersectable(intersect);
|
---|
| 5116 | }
|
---|
[503] | 5117 | }
|
---|
[1570] | 5118 | cout << endl;
|
---|
[442] | 5119 | }
|
---|
[801] | 5120 |
|
---|
[478] | 5121 | DEL_PTR(exporter);
|
---|
| 5122 | cout << "finished" << endl;
|
---|
[442] | 5123 | }
|
---|
| 5124 | }
|
---|
| 5125 |
|
---|
| 5126 |
|
---|
[1021] | 5127 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 5128 | {
|
---|
[1021] | 5129 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 5130 |
|
---|
[1021] | 5131 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 5132 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 5133 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 5134 | const Vector3 width = Vector3(w);
|
---|
| 5135 |
|
---|
| 5136 | PrVs testPrVs;
|
---|
| 5137 |
|
---|
| 5138 | if (exporter)
|
---|
| 5139 | {
|
---|
| 5140 | ViewCellContainer viewCells;
|
---|
| 5141 |
|
---|
| 5142 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 5143 |
|
---|
[1021] | 5144 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 5145 |
|
---|
[1021] | 5146 | exporter->SetWireframe();
|
---|
[482] | 5147 |
|
---|
[1021] | 5148 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 5149 | exporter->ExportBox(tbox);
|
---|
| 5150 |
|
---|
| 5151 | exporter->SetFilled();
|
---|
[503] | 5152 |
|
---|
[1021] | 5153 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 5154 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 5155 |
|
---|
[1021] | 5156 | //exporter->ResetForcedMaterial();
|
---|
| 5157 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 5158 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 5159 |
|
---|
[1021] | 5160 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 5161 | exporter->ExportGeometry(objects);
|
---|
[547] | 5162 |
|
---|
[1021] | 5163 | delete exporter;
|
---|
[482] | 5164 | }
|
---|
[1021] | 5165 | }
|
---|
[482] | 5166 |
|
---|
[547] | 5167 |
|
---|
[1021] | 5168 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5169 | ViewCellContainer &viewCells) const
|
---|
| 5170 | {
|
---|
| 5171 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 5172 | }
|
---|
| 5173 |
|
---|
| 5174 |
|
---|
[1021] | 5175 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5176 | const Vector3 &termination,
|
---|
| 5177 | ViewCellContainer &viewcells)
|
---|
| 5178 | {
|
---|
| 5179 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 5180 | }
|
---|
| 5181 |
|
---|
| 5182 |
|
---|
[1977] | 5183 | bool VspBspViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
| 5184 | const Vector3 &termination,
|
---|
| 5185 | ViewCell *viewCell)
|
---|
| 5186 | {
|
---|
| 5187 | return false;
|
---|
| 5188 | }
|
---|
| 5189 |
|
---|
| 5190 |
|
---|
[979] | 5191 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 5192 | {
|
---|
| 5193 | int numSamples;
|
---|
[1161] | 5194 |
|
---|
[1004] | 5195 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 5196 | cout << "samples" << numSamples << endl;
|
---|
| 5197 |
|
---|
| 5198 | vector<RenderCostSample> samples;
|
---|
| 5199 |
|
---|
[1145] | 5200 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 5201 | return;
|
---|
| 5202 |
|
---|
[1145] | 5203 | //start the view point queries
|
---|
[979] | 5204 | long startTime = GetTime();
|
---|
| 5205 | cout << "starting sampling of render cost ... ";
|
---|
| 5206 |
|
---|
[1145] | 5207 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 5208 |
|
---|
| 5209 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 5210 |
|
---|
| 5211 |
|
---|
[1161] | 5212 | // for each sample:
|
---|
| 5213 | // find view cells associated with the samples
|
---|
| 5214 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 5215 | //
|
---|
[1161] | 5216 | // for each view cell:
|
---|
| 5217 | // compute difference point sampled pvs - view cell pvs
|
---|
| 5218 | // export geometry with color coded pvs difference
|
---|
| 5219 |
|
---|
| 5220 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 5221 |
|
---|
[979] | 5222 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 5223 |
|
---|
[1161] | 5224 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 5225 | {
|
---|
| 5226 | RenderCostSample sample = *rit;
|
---|
| 5227 |
|
---|
| 5228 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 5229 |
|
---|
[1161] | 5230 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 5231 |
|
---|
| 5232 | if (it == sampleMap.end())
|
---|
| 5233 | {
|
---|
| 5234 | sampleMap[vc] = sample.mPvs;
|
---|
| 5235 | }
|
---|
| 5236 | else
|
---|
| 5237 | {
|
---|
[1740] | 5238 | (*it).second.MergeInPlace(sample.mPvs);
|
---|
[1161] | 5239 | }
|
---|
| 5240 | }
|
---|
| 5241 |
|
---|
| 5242 | // visualize the view cells
|
---|
| 5243 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 5244 |
|
---|
| 5245 | Material m;//= RandomMaterial();
|
---|
| 5246 |
|
---|
| 5247 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 5248 | {
|
---|
| 5249 | ViewCell *vc = (*vit).first;
|
---|
| 5250 |
|
---|
| 5251 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 5252 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 5253 |
|
---|
[1168] | 5254 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 5255 | m.mDiffuseColor.b = 1.0f;
|
---|
| 5256 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 5257 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 5258 |
|
---|
[1415] | 5259 | /* // counting the pvss
|
---|
| 5260 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 5261 | {
|
---|
| 5262 | RenderCostSample sample = *rit;
|
---|
| 5263 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 5264 |
|
---|
[1415] | 5265 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 5266 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 5267 |
|
---|
[1415] | 5268 | DEL_PTR(hMesh);
|
---|
| 5269 | }
|
---|
| 5270 | */
|
---|
[979] | 5271 | }
|
---|
| 5272 | }
|
---|
| 5273 |
|
---|
| 5274 |
|
---|
[580] | 5275 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 5276 | ViewCell *vc,
|
---|
| 5277 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5278 | const AxisAlignedPlane *clipPlane
|
---|
| 5279 | ) const
|
---|
[482] | 5280 | {
|
---|
[660] | 5281 | if (clipPlane)
|
---|
[591] | 5282 | {
|
---|
[1047] | 5283 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 5284 |
|
---|
[591] | 5285 | ViewCellContainer leaves;
|
---|
| 5286 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5287 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5288 |
|
---|
| 5289 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5290 | {
|
---|
| 5291 | BspNodeGeometry geom;
|
---|
| 5292 | BspNodeGeometry front;
|
---|
| 5293 | BspNodeGeometry back;
|
---|
| 5294 |
|
---|
[1551] | 5295 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 5296 |
|
---|
[1052] | 5297 | const float eps = 0.0001f;
|
---|
[1047] | 5298 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 5299 |
|
---|
[710] | 5300 | if (cf == -1)
|
---|
[682] | 5301 | {
|
---|
| 5302 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 5303 | }
|
---|
[710] | 5304 | else if (cf == 0)
|
---|
[684] | 5305 | {
|
---|
[682] | 5306 | geom.SplitGeometry(front,
|
---|
| 5307 | back,
|
---|
[1047] | 5308 | plane,
|
---|
[682] | 5309 | mViewSpaceBox,
|
---|
[710] | 5310 | eps);
|
---|
[801] | 5311 |
|
---|
[683] | 5312 | if (back.Valid())
|
---|
| 5313 | {
|
---|
[682] | 5314 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 5315 | }
|
---|
[684] | 5316 | }
|
---|
[591] | 5317 | }
|
---|
| 5318 | }
|
---|
| 5319 | else
|
---|
| 5320 | {
|
---|
[801] | 5321 | // export mesh if available
|
---|
[1001] | 5322 | // TODO: some bug here?
|
---|
[1563] | 5323 | if (1 && vc->GetMesh())
|
---|
[801] | 5324 | {
|
---|
| 5325 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 5326 | }
|
---|
| 5327 | else
|
---|
[1001] | 5328 | {
|
---|
[801] | 5329 | BspNodeGeometry geom;
|
---|
| 5330 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 5331 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 5332 | }
|
---|
[591] | 5333 | }
|
---|
[482] | 5334 | }
|
---|
| 5335 |
|
---|
| 5336 |
|
---|
| 5337 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 5338 | {
|
---|
[580] | 5339 | ViewCellContainer leaves;
|
---|
| 5340 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 5341 |
|
---|
| 5342 | int maxDist = 0;
|
---|
[580] | 5343 |
|
---|
[482] | 5344 | // compute max height difference
|
---|
[580] | 5345 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 5346 | {
|
---|
[580] | 5347 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 5348 | {
|
---|
[1551] | 5349 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 5350 |
|
---|
[1001] | 5351 | if (i != j)
|
---|
| 5352 | {
|
---|
[1551] | 5353 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 5354 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 5355 |
|
---|
| 5356 | if (dist > maxDist)
|
---|
| 5357 | maxDist = dist;
|
---|
| 5358 | }
|
---|
[482] | 5359 | }
|
---|
| 5360 | }
|
---|
[580] | 5361 |
|
---|
[492] | 5362 | return maxDist;
|
---|
| 5363 | }
|
---|
[482] | 5364 |
|
---|
[492] | 5365 |
|
---|
[879] | 5366 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 5367 | {
|
---|
[1021] | 5368 | if (!ViewCellsConstructed())
|
---|
[508] | 5369 | return NULL;
|
---|
[572] | 5370 |
|
---|
| 5371 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5372 | return NULL;
|
---|
| 5373 |
|
---|
[879] | 5374 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 5375 | }
|
---|
[503] | 5376 |
|
---|
| 5377 |
|
---|
| 5378 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5379 | {
|
---|
| 5380 | BspNodeGeometry geom;
|
---|
[590] | 5381 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 5382 |
|
---|
[1001] | 5383 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 5384 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 5385 |
|
---|
[503] | 5386 | vc->SetMesh(mesh);
|
---|
| 5387 | }
|
---|
[508] | 5388 |
|
---|
| 5389 |
|
---|
[532] | 5390 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5391 | {
|
---|
[535] | 5392 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 5393 | }
|
---|
[551] | 5394 |
|
---|
| 5395 |
|
---|
[587] | 5396 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5397 | const bool createMesh)
|
---|
[551] | 5398 | {
|
---|
| 5399 | float area = 0;
|
---|
| 5400 | float volume = 0;
|
---|
| 5401 |
|
---|
[580] | 5402 | ViewCellContainer leaves;
|
---|
[582] | 5403 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 5404 |
|
---|
| 5405 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5406 |
|
---|
[693] | 5407 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 5408 | {
|
---|
| 5409 | BspNodeGeometry geom;
|
---|
[1551] | 5410 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 5411 |
|
---|
[719] | 5412 | const float lVol = geom.GetVolume();
|
---|
| 5413 | const float lArea = geom.GetArea();
|
---|
[693] | 5414 |
|
---|
| 5415 | area += lArea;
|
---|
| 5416 | volume += lVol;
|
---|
| 5417 |
|
---|
[1616] | 5418 | if (createMesh)
|
---|
| 5419 | CreateMesh(*it);
|
---|
[551] | 5420 | }
|
---|
| 5421 |
|
---|
| 5422 | viewCell->SetVolume(volume);
|
---|
| 5423 | viewCell->SetArea(area);
|
---|
[563] | 5424 | }
|
---|
[575] | 5425 |
|
---|
| 5426 |
|
---|
[693] | 5427 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 5428 | {
|
---|
| 5429 | ViewCellContainer leaves;
|
---|
| 5430 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5431 |
|
---|
| 5432 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5433 |
|
---|
| 5434 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 5435 | float subdivVol = 0;
|
---|
| 5436 | float newVol = 0;
|
---|
| 5437 |
|
---|
| 5438 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5439 | {
|
---|
| 5440 | BspNodeGeometry geom;
|
---|
[1551] | 5441 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 5442 |
|
---|
| 5443 | const float lVol = geom.GetVolume();
|
---|
| 5444 |
|
---|
| 5445 | newVol += lVol;
|
---|
| 5446 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 5447 |
|
---|
[704] | 5448 | float thres = 0.9f;
|
---|
[697] | 5449 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 5450 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 5451 | }
|
---|
| 5452 |
|
---|
| 5453 | Debug << "exact volume: " << vol << endl;
|
---|
| 5454 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 5455 | Debug << "new volume: " << newVol << endl;
|
---|
| 5456 | }
|
---|
| 5457 |
|
---|
| 5458 |
|
---|
[577] | 5459 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5460 | {
|
---|
| 5461 | // TODO: do I still need this here?
|
---|
[590] | 5462 | if (0)
|
---|
[693] | 5463 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 5464 | }
|
---|
[575] | 5465 |
|
---|
[1021] | 5466 |
|
---|
| 5467 |
|
---|
[1887] | 5468 | /************************************************************************/
|
---|
| 5469 | /* VspOspViewCellsManager implementation */
|
---|
| 5470 | /************************************************************************/
|
---|
[1021] | 5471 |
|
---|
| 5472 |
|
---|
[1789] | 5473 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
| 5474 | const string &hierarchyType)
|
---|
[1740] | 5475 | : ViewCellsManager(vcTree)
|
---|
| 5476 | {
|
---|
| 5477 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
| 5478 |
|
---|
[1887] | 5479 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
| 5480 |
|
---|
| 5481 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5482 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5483 |
|
---|
[1740] | 5484 | mHierarchyManager = CreateHierarchyManager(hierarchyType);
|
---|
| 5485 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5486 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
| 5487 | }
|
---|
| 5488 |
|
---|
| 5489 |
|
---|
[1278] | 5490 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 5491 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 5492 | {
|
---|
[1640] | 5493 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
[1887] | 5494 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
[1106] | 5495 |
|
---|
[1887] | 5496 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5497 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
| 5498 |
|
---|
[1278] | 5499 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5500 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 5501 | }
|
---|
[859] | 5502 |
|
---|
[1789] | 5503 |
|
---|
[1743] | 5504 | Intersectable *
|
---|
| 5505 | VspOspViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
|
---|
| 5506 | {
|
---|
[1902] | 5507 | if (mUseKdPvs)
|
---|
| 5508 | {
|
---|
| 5509 | return ViewCellsManager::GetIntersectable(ray, isTermination);
|
---|
| 5510 | }
|
---|
| 5511 | else
|
---|
| 5512 | {
|
---|
| 5513 | return mHierarchyManager->GetIntersectable(ray, isTermination);
|
---|
| 5514 | }
|
---|
[1743] | 5515 | }
|
---|
[859] | 5516 |
|
---|
[1789] | 5517 |
|
---|
[1740] | 5518 | HierarchyManager *VspOspViewCellsManager::CreateHierarchyManager(const string &hierarchyType)
|
---|
| 5519 | {
|
---|
| 5520 | HierarchyManager *hierarchyManager;
|
---|
| 5521 |
|
---|
| 5522 | if (strcmp(hierarchyType.c_str(), "osp") == 0)
|
---|
| 5523 | {
|
---|
| 5524 | Debug << "hierarchy manager: osp" << endl;
|
---|
| 5525 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
| 5526 | }
|
---|
| 5527 | else if (strcmp(hierarchyType.c_str(), "bvh") == 0)
|
---|
| 5528 | {
|
---|
| 5529 | Debug << "hierarchy manager: bvh" << endl;
|
---|
| 5530 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
| 5531 | }
|
---|
| 5532 | else // only view space partition
|
---|
| 5533 | {
|
---|
| 5534 | Debug << "hierarchy manager: obj" << endl;
|
---|
| 5535 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
| 5536 | }
|
---|
| 5537 |
|
---|
| 5538 | return hierarchyManager;
|
---|
| 5539 | }
|
---|
| 5540 |
|
---|
| 5541 |
|
---|
[1021] | 5542 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 5543 | {
|
---|
[1740] | 5544 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 5545 | }
|
---|
| 5546 |
|
---|
| 5547 |
|
---|
| 5548 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 5549 | {
|
---|
| 5550 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 5551 | }
|
---|
| 5552 |
|
---|
| 5553 |
|
---|
| 5554 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 5555 | {
|
---|
| 5556 | // view cells tree constructed
|
---|
| 5557 | if (!ViewCellsTreeConstructed())
|
---|
| 5558 | {
|
---|
[1278] | 5559 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 5560 | }
|
---|
| 5561 | else
|
---|
| 5562 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 5563 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 5564 | }
|
---|
| 5565 | }
|
---|
| 5566 |
|
---|
| 5567 |
|
---|
| 5568 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 5569 | {
|
---|
[1278] | 5570 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 5571 | }
|
---|
| 5572 |
|
---|
| 5573 |
|
---|
| 5574 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 5575 | {
|
---|
| 5576 | return new VspViewCell(mesh);
|
---|
| 5577 | }
|
---|
| 5578 |
|
---|
| 5579 |
|
---|
| 5580 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 5581 | const VssRayContainer &rays)
|
---|
| 5582 | {
|
---|
| 5583 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 5584 |
|
---|
[1074] | 5585 | // skip rest if view cells were already constructed
|
---|
[1021] | 5586 | if (ViewCellsConstructed())
|
---|
| 5587 | return 0;
|
---|
| 5588 |
|
---|
| 5589 | int sampleContributions = 0;
|
---|
| 5590 | VssRayContainer sampleRays;
|
---|
| 5591 |
|
---|
| 5592 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 5593 |
|
---|
| 5594 | VssRayContainer constructionRays;
|
---|
| 5595 | VssRayContainer savedRays;
|
---|
| 5596 |
|
---|
| 5597 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 5598 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 5599 |
|
---|
| 5600 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 5601 |
|
---|
[1421] | 5602 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 5603 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 5604 |
|
---|
[1293] | 5605 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 5606 |
|
---|
[1576] | 5607 | #if TEST_EVALUATION
|
---|
| 5608 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 5609 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 5610 | {
|
---|
| 5611 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 5612 | }
|
---|
| 5613 | #endif
|
---|
| 5614 |
|
---|
[1545] | 5615 | /////////////////////////
|
---|
[1444] | 5616 | //-- print satistics for subdivision and view cells
|
---|
| 5617 |
|
---|
[1421] | 5618 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 5619 |
|
---|
[1444] | 5620 | ResetViewCells();
|
---|
| 5621 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 5622 |
|
---|
[1545] | 5623 | //////////////
|
---|
[1444] | 5624 | //-- recast rest of rays
|
---|
| 5625 |
|
---|
[1286] | 5626 | const long startTime = GetTime();
|
---|
[1021] | 5627 | cout << "Computing remaining ray contributions ... ";
|
---|
| 5628 |
|
---|
| 5629 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 5630 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 5631 |
|
---|
[1415] | 5632 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 5633 | << " secs" << endl;
|
---|
| 5634 |
|
---|
| 5635 | if (0)
|
---|
[1932] | 5636 | {
|
---|
| 5637 | // real meshes are constructed at this stage
|
---|
[1021] | 5638 | cout << "finalizing view cells ... ";
|
---|
[1932] | 5639 | FinalizeViewCells(true);
|
---|
[1021] | 5640 | cout << "finished" << endl;
|
---|
| 5641 | }
|
---|
| 5642 |
|
---|
| 5643 | return sampleContributions;
|
---|
| 5644 | }
|
---|
| 5645 |
|
---|
| 5646 |
|
---|
| 5647 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 5648 | const VssRayContainer &rays)
|
---|
| 5649 | {
|
---|
| 5650 | if (!ViewCellsConstructed())
|
---|
| 5651 | {
|
---|
[1842] | 5652 | Debug << "post process error: no view cells constructed" << endl;
|
---|
[1021] | 5653 | return 0;
|
---|
| 5654 | }
|
---|
| 5655 |
|
---|
[1418] | 5656 | // if view cells were already constructed before post processing step
|
---|
| 5657 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 5658 | if (mViewCellsFinished)
|
---|
| 5659 | {
|
---|
| 5660 | FinalizeViewCells(true);
|
---|
| 5661 | EvaluateViewCellsStats();
|
---|
| 5662 |
|
---|
| 5663 | return 0;
|
---|
| 5664 | }
|
---|
| 5665 |
|
---|
| 5666 | // check if new view cells turned invalid
|
---|
| 5667 | int minPvs, maxPvs;
|
---|
| 5668 |
|
---|
| 5669 | if (0)
|
---|
| 5670 | {
|
---|
| 5671 | minPvs = mMinPvsSize;
|
---|
| 5672 | maxPvs = mMaxPvsSize;
|
---|
| 5673 | }
|
---|
| 5674 | else
|
---|
| 5675 | {
|
---|
[1414] | 5676 | // problem matt: why did I start here from zero?
|
---|
| 5677 | minPvs = 0;
|
---|
[1021] | 5678 | maxPvs = mMaxPvsSize;
|
---|
| 5679 | }
|
---|
| 5680 |
|
---|
| 5681 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5682 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5683 |
|
---|
| 5684 | SetValidity(minPvs, maxPvs);
|
---|
| 5685 |
|
---|
| 5686 |
|
---|
[1414] | 5687 | // area is not up to date, has to be recomputed
|
---|
[1021] | 5688 | mTotalAreaValid = false;
|
---|
| 5689 | VssRayContainer postProcessRays;
|
---|
| 5690 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 5691 |
|
---|
| 5692 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 5693 |
|
---|
| 5694 |
|
---|
| 5695 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 5696 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 5697 | mViewCellsTree->SetRoot(root);
|
---|
| 5698 |
|
---|
[1696] | 5699 | //////////////////////////
|
---|
| 5700 | //-- update pvs up to the root of the hierarchy
|
---|
[1418] | 5701 |
|
---|
[1021] | 5702 | ObjectPvs pvs;
|
---|
| 5703 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5704 |
|
---|
[1414] | 5705 |
|
---|
[1418] | 5706 | //////////////////////
|
---|
[1021] | 5707 | //-- render simulation after merge + refine
|
---|
[1414] | 5708 |
|
---|
[1415] | 5709 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 5710 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5711 | SimulationStatistics ss;
|
---|
| 5712 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 5713 | cout << ss << endl;
|
---|
[1414] | 5714 |
|
---|
[1486] | 5715 |
|
---|
[1843] | 5716 | mHierarchyManager->CreateUniqueObjectIds();
|
---|
| 5717 |
|
---|
[1586] | 5718 | ///////////
|
---|
[1021] | 5719 | //-- compression
|
---|
[1262] | 5720 |
|
---|
[1843] | 5721 | if (0) CompressViewCells();
|
---|
[859] | 5722 |
|
---|
[1486] | 5723 | /////////////
|
---|
| 5724 | //-- some tasks still to do on the view cells:
|
---|
| 5725 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1696] | 5726 |
|
---|
[1021] | 5727 | if (1) FinalizeViewCells(true);
|
---|
| 5728 |
|
---|
| 5729 | return 0;
|
---|
[859] | 5730 | }
|
---|
| 5731 |
|
---|
[1021] | 5732 |
|
---|
| 5733 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5734 | {
|
---|
[1021] | 5735 | return VSP_OSP;
|
---|
| 5736 | }
|
---|
[859] | 5737 |
|
---|
[1021] | 5738 |
|
---|
| 5739 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5740 | {
|
---|
| 5741 | // terminate recursion
|
---|
| 5742 | if (root->IsLeaf())
|
---|
| 5743 | {
|
---|
| 5744 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5745 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5746 | return leaf->GetViewCell();
|
---|
| 5747 | }
|
---|
| 5748 |
|
---|
| 5749 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5750 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5751 |
|
---|
| 5752 | // evaluate merge cost for priority traversal
|
---|
[1713] | 5753 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1021] | 5754 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5755 |
|
---|
| 5756 | float volume = 0;
|
---|
| 5757 |
|
---|
| 5758 | VspNode *front = interior->GetFront();
|
---|
| 5759 | VspNode *back = interior->GetBack();
|
---|
| 5760 |
|
---|
| 5761 | ObjectPvs frontPvs, backPvs;
|
---|
| 5762 |
|
---|
[1545] | 5763 | /////////
|
---|
[1021] | 5764 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5765 |
|
---|
[1021] | 5766 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5767 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5768 |
|
---|
| 5769 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5770 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5771 |
|
---|
| 5772 | volume += backVc->GetVolume();
|
---|
| 5773 | volume += frontVc->GetVolume();
|
---|
| 5774 |
|
---|
| 5775 | viewCellInterior->SetVolume(volume);
|
---|
| 5776 |
|
---|
| 5777 | return viewCellInterior;
|
---|
| 5778 | }
|
---|
| 5779 |
|
---|
| 5780 |
|
---|
| 5781 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5782 | {
|
---|
| 5783 | if (!ViewCellsConstructed())
|
---|
| 5784 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5785 |
|
---|
| 5786 | // TODO: set reasonable limit
|
---|
| 5787 | const int limit = 20;
|
---|
| 5788 |
|
---|
| 5789 | for (int i = 0; i < limit; ++ i)
|
---|
| 5790 | {
|
---|
| 5791 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5792 |
|
---|
[1278] | 5793 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5794 | {
|
---|
| 5795 | return true;
|
---|
| 5796 | }
|
---|
[904] | 5797 | }
|
---|
[859] | 5798 |
|
---|
[1021] | 5799 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5800 | return false;
|
---|
[884] | 5801 | }
|
---|
| 5802 |
|
---|
| 5803 |
|
---|
[1027] | 5804 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5805 | ViewCell *vc,
|
---|
[1416] | 5806 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5807 | const AxisAlignedPlane *clipPlane
|
---|
| 5808 | ) const
|
---|
[1027] | 5809 | {
|
---|
| 5810 | ViewCellContainer leaves;
|
---|
| 5811 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5812 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5813 |
|
---|
[1047] | 5814 | Plane3 plane;
|
---|
| 5815 | if (clipPlane)
|
---|
[1418] | 5816 | {
|
---|
| 5817 | // arbitrary plane definition
|
---|
[1047] | 5818 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5819 | }
|
---|
[1047] | 5820 |
|
---|
[1027] | 5821 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5822 | {
|
---|
| 5823 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5824 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5825 |
|
---|
[1416] | 5826 | const AxisAlignedBox3 box =
|
---|
[1551] | 5827 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5828 |
|
---|
[1418] | 5829 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5830 | continue;
|
---|
| 5831 |
|
---|
[1047] | 5832 | if (clipPlane)
|
---|
| 5833 | {
|
---|
| 5834 | if (box.Side(plane) == -1)
|
---|
[1144] | 5835 | {
|
---|
[1047] | 5836 | exporter->ExportBox(box);
|
---|
[1144] | 5837 | }
|
---|
[1047] | 5838 | else if (box.Side(plane) == 0)
|
---|
| 5839 | {
|
---|
[1418] | 5840 | // intersection
|
---|
[1047] | 5841 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5842 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5843 | exporter->ExportBox(bbox);
|
---|
| 5844 | }
|
---|
| 5845 | }
|
---|
| 5846 | else
|
---|
| 5847 | {
|
---|
[1027] | 5848 | exporter->ExportBox(box);
|
---|
[1047] | 5849 | }
|
---|
[1027] | 5850 | }
|
---|
| 5851 | }
|
---|
| 5852 |
|
---|
| 5853 |
|
---|
[1021] | 5854 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5855 | {
|
---|
| 5856 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5857 | // validy update in preprocessor for all managers)
|
---|
| 5858 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5859 |
|
---|
[1021] | 5860 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5861 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5862 | }
|
---|
| 5863 |
|
---|
| 5864 |
|
---|
[1920] | 5865 | float VspOspViewCellsManager::UpdateObjectCosts()
|
---|
| 5866 | {
|
---|
| 5867 | float maxRenderCost = 0;
|
---|
| 5868 |
|
---|
| 5869 | cout << "updating object pvs cost ... ";
|
---|
| 5870 | const long startTime = GetTime();
|
---|
| 5871 |
|
---|
| 5872 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 5873 |
|
---|
| 5874 | Intersectable::NewMail();
|
---|
| 5875 |
|
---|
| 5876 | const float invViewSpaceVol = 1.0f / GetViewSpaceBox().GetVolume();
|
---|
| 5877 |
|
---|
| 5878 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 5879 | {
|
---|
| 5880 | ViewCell *vc = *vit;
|
---|
| 5881 |
|
---|
| 5882 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
| 5883 |
|
---|
| 5884 | // output PVS of view cell
|
---|
| 5885 | while (pit.HasMoreEntries())
|
---|
| 5886 | {
|
---|
| 5887 | ObjectPvsEntry entry = pit.Next();
|
---|
| 5888 |
|
---|
| 5889 | BvhNode *node = dynamic_cast<BvhNode *>(entry.mObject);
|
---|
| 5890 |
|
---|
| 5891 | // hack!!
|
---|
| 5892 | if (!node->IsLeaf())
|
---|
| 5893 | {
|
---|
| 5894 | cout << "error, can only do leaves" << endl;
|
---|
| 5895 | return 0;
|
---|
| 5896 | }
|
---|
| 5897 |
|
---|
| 5898 | if (!node->Mailed())
|
---|
| 5899 | {
|
---|
| 5900 | node->Mail();
|
---|
| 5901 | node->mRenderCost = 0;
|
---|
| 5902 | }
|
---|
| 5903 |
|
---|
| 5904 | const float rc = (float)((BvhLeaf *)node)->mObjects.size();
|
---|
| 5905 |
|
---|
| 5906 | node->mRenderCost += rc * vc->GetVolume() * invViewSpaceVol;
|
---|
| 5907 |
|
---|
| 5908 | if (node->mRenderCost > maxRenderCost)
|
---|
| 5909 | maxRenderCost = node->mRenderCost;
|
---|
| 5910 | }
|
---|
| 5911 | }
|
---|
| 5912 |
|
---|
| 5913 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
| 5914 |
|
---|
| 5915 | return maxRenderCost;
|
---|
| 5916 | }
|
---|
| 5917 |
|
---|
| 5918 |
|
---|
[1021] | 5919 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5920 | const VssRayContainer &sampleRays)
|
---|
[859] | 5921 | {
|
---|
[997] | 5922 | if (!ViewCellsConstructed())
|
---|
| 5923 | return;
|
---|
[1027] | 5924 |
|
---|
[1021] | 5925 | VssRayContainer visRays;
|
---|
| 5926 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5927 |
|
---|
[1633] | 5928 | ////////////
|
---|
| 5929 | //-- export final view cells
|
---|
[1106] | 5930 |
|
---|
[1633] | 5931 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5932 |
|
---|
[1920] | 5933 | //Vector3 scale(0.9f, 0.9f, 0.9f);
|
---|
| 5934 | Vector3 scale(1.0f, 1.0f, 1.0f);
|
---|
[1789] | 5935 |
|
---|
[1633] | 5936 | if (exporter)
|
---|
| 5937 | {
|
---|
[1764] | 5938 | if (CLAMP_TO_BOX)
|
---|
| 5939 | {
|
---|
| 5940 | exporter->mClampToBox = true;
|
---|
| 5941 | }
|
---|
| 5942 |
|
---|
[1763] | 5943 | EvaluateViewCellsStats();
|
---|
| 5944 |
|
---|
[1633] | 5945 | const long starttime = GetTime();
|
---|
[1972] | 5946 | cout << "exporting final view cells (after initial construction + post process) ... " << endl;
|
---|
[1420] | 5947 |
|
---|
[1633] | 5948 | // matt: hack for clamping scene
|
---|
| 5949 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
[1763] | 5950 | bbox.Scale(scale);
|
---|
[1703] | 5951 |
|
---|
[1972] | 5952 | if (1 && mExportRays)
|
---|
[1633] | 5953 | {
|
---|
| 5954 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5955 | }
|
---|
| 5956 |
|
---|
[1920] | 5957 | // hack color code (show pvs size)
|
---|
| 5958 | const int savedColorCode = mColorCode;
|
---|
| 5959 |
|
---|
| 5960 | const float maxRenderCost = UpdateObjectCosts();
|
---|
| 5961 | cout << "maxRenderCost: " << maxRenderCost << endl;
|
---|
| 5962 | mColorCode = 0; // 0 = random, 1 = export pvs
|
---|
| 5963 |
|
---|
[1981] | 5964 | if (0)
|
---|
[1760] | 5965 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects,
|
---|
[1920] | 5966 | CLAMP_TO_BOX ? &bbox : NULL, maxRenderCost, false);
|
---|
[1763] | 5967 |
|
---|
[1920] | 5968 |
|
---|
| 5969 | //ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, mColorCode, GetClipPlane());
|
---|
| 5970 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
| 5971 |
|
---|
| 5972 | delete exporter;
|
---|
| 5973 |
|
---|
| 5974 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
| 5975 | mColorCode = savedColorCode;
|
---|
| 5976 | }
|
---|
| 5977 |
|
---|
| 5978 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5979 |
|
---|
| 5980 | if (exporter)
|
---|
| 5981 | {
|
---|
| 5982 | if (CLAMP_TO_BOX)
|
---|
| 5983 | {
|
---|
| 5984 | exporter->mClampToBox = true;
|
---|
| 5985 | }
|
---|
| 5986 |
|
---|
| 5987 | EvaluateViewCellsStats();
|
---|
| 5988 |
|
---|
| 5989 | const long starttime = GetTime();
|
---|
| 5990 | cout << "exporting final objects (after initial construction + post process) ... ";
|
---|
| 5991 |
|
---|
| 5992 | // matt: hack for clamping scene
|
---|
| 5993 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
| 5994 | bbox.Scale(scale);
|
---|
| 5995 |
|
---|
[1764] | 5996 | // hack color code (show pvs size)
|
---|
| 5997 | const int savedColorCode = mColorCode;
|
---|
| 5998 |
|
---|
[1920] | 5999 | mColorCode = 1; // 0 = random, 1 = export pvs
|
---|
| 6000 | const float maxRenderCost = -1;
|
---|
| 6001 |
|
---|
[1981] | 6002 | if (0)
|
---|
[1920] | 6003 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects,
|
---|
| 6004 | CLAMP_TO_BOX ? &bbox : NULL, maxRenderCost, false);
|
---|
| 6005 |
|
---|
| 6006 |
|
---|
[1763] | 6007 | //ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, mColorCode, GetClipPlane());
|
---|
| 6008 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1633] | 6009 |
|
---|
| 6010 | delete exporter;
|
---|
[1760] | 6011 |
|
---|
[1633] | 6012 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 6013 | mColorCode = savedColorCode;
|
---|
| 6014 | }
|
---|
| 6015 |
|
---|
[1981] | 6016 | // visualization of the merged view cells
|
---|
[1763] | 6017 | if (0)
|
---|
[1760] | 6018 | {
|
---|
| 6019 | ExportMergedViewCells(objects);
|
---|
| 6020 | }
|
---|
| 6021 |
|
---|
[1841] | 6022 | // export some view cells
|
---|
[1021] | 6023 | int leafOut;
|
---|
| 6024 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1769] | 6025 |
|
---|
| 6026 | const bool sortViewCells = false;
|
---|
| 6027 | const bool exportPvs = true;
|
---|
| 6028 | const bool exportRays = true;
|
---|
[1570] | 6029 | const int raysOut = 100;
|
---|
[580] | 6030 |
|
---|
[1769] | 6031 | ExportSingleViewCells(objects,
|
---|
| 6032 | leafOut,
|
---|
| 6033 | sortViewCells,
|
---|
| 6034 | exportPvs,
|
---|
| 6035 | exportRays,
|
---|
| 6036 | raysOut,
|
---|
| 6037 | "");
|
---|
[1570] | 6038 | }
|
---|
[1021] | 6039 |
|
---|
| 6040 |
|
---|
[1570] | 6041 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 6042 | const int maxViewCells,
|
---|
| 6043 | const bool sortViewCells,
|
---|
| 6044 | const bool exportPvs,
|
---|
| 6045 | const bool exportRays,
|
---|
| 6046 | const int maxRays,
|
---|
| 6047 | const string prefix,
|
---|
| 6048 | VssRayContainer *visRays)
|
---|
| 6049 | {
|
---|
| 6050 | if (sortViewCells)
|
---|
[697] | 6051 | {
|
---|
[1415] | 6052 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1789] | 6053 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1021] | 6054 | }
|
---|
| 6055 |
|
---|
[1570] | 6056 | ViewCell::NewMail();
|
---|
| 6057 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 6058 |
|
---|
[1570] | 6059 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 6060 |
|
---|
[1021] | 6061 | for (int i = 0; i < limit; ++ i)
|
---|
| 6062 | {
|
---|
| 6063 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 6064 |
|
---|
| 6065 | // largest view cell pvs first of random view cell
|
---|
[1570] | 6066 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 6067 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 6068 |
|
---|
[1887] | 6069 | if (vc->Mailed()) // view cell already processed
|
---|
[1570] | 6070 | continue;
|
---|
| 6071 |
|
---|
| 6072 | vc->Mail();
|
---|
| 6073 |
|
---|
[1021] | 6074 | ObjectPvs pvs;
|
---|
| 6075 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 6076 |
|
---|
[1570] | 6077 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 6078 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 6079 |
|
---|
[1709] | 6080 | cout << "view cell " << vc->GetId() << ": pvs cost=" << mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[1021] | 6081 |
|
---|
[1570] | 6082 | if (exportPvs)
|
---|
| 6083 | {
|
---|
| 6084 | Material m;
|
---|
[1418] | 6085 |
|
---|
[1570] | 6086 | Intersectable::NewMail();
|
---|
| 6087 |
|
---|
[1742] | 6088 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 6089 |
|
---|
[1570] | 6090 | // output PVS of view cell
|
---|
[1742] | 6091 | while (pit.HasMoreEntries())
|
---|
[1570] | 6092 | {
|
---|
[1742] | 6093 | ObjectPvsEntry entry = pit.Next();
|
---|
| 6094 |
|
---|
| 6095 | Intersectable *intersect = entry.mObject;
|
---|
| 6096 |
|
---|
[1570] | 6097 | if (!intersect->Mailed())
|
---|
| 6098 | {
|
---|
| 6099 | m = RandomMaterial();
|
---|
| 6100 | exporter->SetForcedMaterial(m);
|
---|
| 6101 |
|
---|
| 6102 | exporter->ExportIntersectable(intersect);
|
---|
| 6103 | intersect->Mail();
|
---|
| 6104 | }
|
---|
| 6105 | }
|
---|
| 6106 | }
|
---|
| 6107 |
|
---|
| 6108 | if (exportRays)
|
---|
[1021] | 6109 | {
|
---|
[1570] | 6110 | ////////////
|
---|
| 6111 | //-- export the sample rays
|
---|
| 6112 |
|
---|
[1021] | 6113 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 6114 | VssRayContainer vcRays;
|
---|
| 6115 | VssRayContainer collectRays;
|
---|
[1021] | 6116 |
|
---|
[1570] | 6117 | // collect intial view cells
|
---|
| 6118 | ViewCellContainer leaves;
|
---|
| 6119 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 6120 |
|
---|
[1570] | 6121 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 6122 |
|
---|
[1570] | 6123 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 6124 | {
|
---|
| 6125 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 6126 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 6127 |
|
---|
| 6128 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 6129 | {
|
---|
[1570] | 6130 | collectRays.push_back(*rit);
|
---|
[1021] | 6131 | }
|
---|
[1570] | 6132 | }
|
---|
[1021] | 6133 |
|
---|
[1570] | 6134 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 6135 |
|
---|
[1570] | 6136 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 6137 |
|
---|
[1570] | 6138 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 6139 | {
|
---|
| 6140 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 6141 |
|
---|
| 6142 | if (p < raysOut)
|
---|
| 6143 | vcRays.push_back(*rit);
|
---|
[1021] | 6144 | }
|
---|
[1570] | 6145 |
|
---|
| 6146 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 6147 | }
|
---|
[1570] | 6148 |
|
---|
| 6149 |
|
---|
[1415] | 6150 | /////////////////
|
---|
[1021] | 6151 | //-- export view cell geometry
|
---|
[1121] | 6152 |
|
---|
[697] | 6153 | exporter->SetWireframe();
|
---|
| 6154 |
|
---|
[1416] | 6155 | Material m;
|
---|
[1021] | 6156 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 6157 | exporter->SetForcedMaterial(m);
|
---|
| 6158 |
|
---|
[1416] | 6159 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 6160 | exporter->SetFilled();
|
---|
| 6161 |
|
---|
[1021] | 6162 | DEL_PTR(exporter);
|
---|
| 6163 | cout << "finished" << endl;
|
---|
[697] | 6164 | }
|
---|
[1021] | 6165 |
|
---|
[1570] | 6166 | cout << endl;
|
---|
[697] | 6167 | }
|
---|
| 6168 |
|
---|
| 6169 |
|
---|
[1021] | 6170 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 6171 | ViewCellContainer &viewCells) const
|
---|
| 6172 | {
|
---|
[1278] | 6173 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 6174 | }
|
---|
[580] | 6175 |
|
---|
[1021] | 6176 |
|
---|
| 6177 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 6178 | const Vector3 &termination,
|
---|
| 6179 | ViewCellContainer &viewcells)
|
---|
| 6180 | {
|
---|
[1977] | 6181 | return mHierarchyManager->
|
---|
| 6182 | GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 6183 | }
|
---|
| 6184 |
|
---|
| 6185 |
|
---|
[1977] | 6186 | bool VspOspViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
| 6187 | const Vector3 &termination,
|
---|
| 6188 | ViewCell *viewCell)
|
---|
| 6189 | {
|
---|
| 6190 | return mHierarchyManager->
|
---|
| 6191 | GetVspTree()->LineSegmentIntersects(origin, termination, viewCell);
|
---|
| 6192 | }
|
---|
| 6193 |
|
---|
| 6194 |
|
---|
[1021] | 6195 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 6196 | const bool exportPvs,
|
---|
| 6197 | const ObjectContainer &objects)
|
---|
| 6198 | {
|
---|
| 6199 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 6200 | return false;
|
---|
| 6201 |
|
---|
[1415] | 6202 | const long starttime = GetTime();
|
---|
[1021] | 6203 | cout << "exporting view cells to xml ... ";
|
---|
| 6204 |
|
---|
[1201] | 6205 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 6206 |
|
---|
| 6207 | // for output we need unique ids for each view cell
|
---|
| 6208 | CreateUniqueViewCellIds();
|
---|
| 6209 |
|
---|
| 6210 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 6211 | stream << "<VisibilitySolution>" << endl;
|
---|
| 6212 |
|
---|
[1843] | 6213 | // §§ tmp matt: for storage cost
|
---|
| 6214 | if (0 && exportPvs)
|
---|
[1580] | 6215 | {
|
---|
| 6216 | ///////////////
|
---|
| 6217 | //-- export bounding boxes
|
---|
| 6218 | //-- The bounding boxes are used to identify
|
---|
| 6219 | //-- the objects in the rendering engine
|
---|
[1614] | 6220 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 6221 | }
|
---|
[1021] | 6222 |
|
---|
[1415] | 6223 | //////////////////////////
|
---|
[1021] | 6224 | //-- export the view cells and the pvs
|
---|
| 6225 |
|
---|
| 6226 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 6227 |
|
---|
| 6228 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 6229 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 6230 | stream << "</ViewCells>" << endl;
|
---|
| 6231 |
|
---|
[1415] | 6232 | //////////////////////
|
---|
[1201] | 6233 | //-- export the view space hierarchy
|
---|
[1021] | 6234 |
|
---|
[1262] | 6235 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 6236 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 6237 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 6238 |
|
---|
[1278] | 6239 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 6240 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 6241 |
|
---|
[1415] | 6242 | //////////////////////
|
---|
[1201] | 6243 | //-- export the object space partition
|
---|
| 6244 |
|
---|
[1278] | 6245 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 6246 |
|
---|
[1201] | 6247 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 6248 | stream.close();
|
---|
[1201] | 6249 |
|
---|
[1415] | 6250 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 6251 | return true;
|
---|
| 6252 | }
|
---|
| 6253 |
|
---|
| 6254 |
|
---|
| 6255 |
|
---|
[1027] | 6256 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 6257 | const bool active) const
|
---|
[1021] | 6258 | {
|
---|
| 6259 | if (!ViewCellsConstructed())
|
---|
| 6260 | return NULL;
|
---|
[1588] | 6261 |
|
---|
[1021] | 6262 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 6263 | return NULL;
|
---|
[1588] | 6264 |
|
---|
[1278] | 6265 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 6266 | }
|
---|
| 6267 |
|
---|
| 6268 |
|
---|
| 6269 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 6270 | {
|
---|
| 6271 | // matt: TODO
|
---|
| 6272 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 6273 |
|
---|
| 6274 | ViewCellContainer leaves;
|
---|
| 6275 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 6276 |
|
---|
| 6277 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 6278 |
|
---|
| 6279 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 6280 | {
|
---|
[1551] | 6281 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 6282 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 6283 | IncludeBoxInMesh(box, *mesh);
|
---|
| 6284 | }
|
---|
| 6285 |
|
---|
[1021] | 6286 | vc->SetMesh(mesh);
|
---|
| 6287 | }
|
---|
| 6288 |
|
---|
| 6289 |
|
---|
| 6290 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 6291 | {
|
---|
| 6292 | // matt: TODO
|
---|
| 6293 | return 0;
|
---|
| 6294 | }
|
---|
| 6295 |
|
---|
| 6296 |
|
---|
[1667] | 6297 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
[1021] | 6298 | {
|
---|
| 6299 | float area = 0;
|
---|
| 6300 | float volume = 0;
|
---|
| 6301 |
|
---|
| 6302 | ViewCellContainer leaves;
|
---|
| 6303 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 6304 |
|
---|
| 6305 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 6306 |
|
---|
| 6307 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 6308 | {
|
---|
[1551] | 6309 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 6310 |
|
---|
[1278] | 6311 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 6312 |
|
---|
[1027] | 6313 | const float lVol = box.GetVolume();
|
---|
| 6314 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 6315 |
|
---|
| 6316 | area += lArea;
|
---|
| 6317 | volume += lVol;
|
---|
| 6318 |
|
---|
| 6319 | CreateMesh(*it);
|
---|
[580] | 6320 | }
|
---|
| 6321 |
|
---|
[1021] | 6322 | viewCell->SetVolume(volume);
|
---|
| 6323 | viewCell->SetArea(area);
|
---|
[580] | 6324 | }
|
---|
| 6325 |
|
---|
[1876] | 6326 |
|
---|
[1021] | 6327 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 6328 | {
|
---|
| 6329 | // TODO
|
---|
| 6330 | }
|
---|
[580] | 6331 |
|
---|
[1201] | 6332 |
|
---|
[1889] | 6333 | static void PrintCompressionStats(HierarchyManager *hm, const int pvsEntries)
|
---|
| 6334 | {
|
---|
| 6335 | float mem = (float)pvsEntries * ObjectPvs::GetEntrySize();
|
---|
| 6336 |
|
---|
| 6337 | float fullmem = mem +
|
---|
| 6338 | (hm->GetVspTree()->GetStatistics().Leaves() * 16 +
|
---|
| 6339 | hm->mBvHierarchy->GetStatistics().Leaves() * 16) / float(1024 * 1024);
|
---|
| 6340 |
|
---|
| 6341 | cout << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
| 6342 | Debug << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
| 6343 | }
|
---|
| 6344 |
|
---|
| 6345 |
|
---|
[1845] | 6346 | void VspOspViewCellsManager::CompressViewCells()
|
---|
| 6347 | {
|
---|
[1889] | 6348 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
[1887] | 6349 | return;
|
---|
| 6350 |
|
---|
[1845] | 6351 | ////////////
|
---|
| 6352 | //-- compression
|
---|
| 6353 |
|
---|
[1889] | 6354 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 6355 |
|
---|
| 6356 | cout << "before compression: " << endl;
|
---|
| 6357 | Debug << "before compression: " << endl;
|
---|
| 6358 |
|
---|
| 6359 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
| 6360 |
|
---|
| 6361 | if (mCompressObjects)
|
---|
[1845] | 6362 | {
|
---|
[1889] | 6363 | cout << "compressing in the objects: " << endl;
|
---|
| 6364 | Debug << "compressing in the objects: " << endl;
|
---|
[1845] | 6365 |
|
---|
| 6366 | pvsEntries = mHierarchyManager->CompressObjectSpace();
|
---|
[1889] | 6367 | }
|
---|
| 6368 | else
|
---|
| 6369 | {
|
---|
| 6370 | cout << "compressing in the view space: " << endl;
|
---|
| 6371 | Debug << "compressing in the view space: " << endl;
|
---|
[1846] | 6372 |
|
---|
[1889] | 6373 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
| 6374 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1845] | 6375 | }
|
---|
[1889] | 6376 |
|
---|
| 6377 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
[1845] | 6378 | }
|
---|
| 6379 |
|
---|
| 6380 |
|
---|
[1201] | 6381 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 6382 | ObjectContainer *objects,
|
---|
| 6383 | const bool finalizeViewCells,
|
---|
| 6384 | BoundingBoxConverter *bconverter)
|
---|
| 6385 |
|
---|
| 6386 | {
|
---|
| 6387 | ViewCellsManager *vm =
|
---|
| 6388 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 6389 | #if 0
|
---|
| 6390 | // insert scene objects in tree
|
---|
[1201] | 6391 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 6392 | #endif
|
---|
[1201] | 6393 | return vm;
|
---|
| 6394 | }
|
---|
| 6395 |
|
---|
[1889] | 6396 |
|
---|
[1737] | 6397 | void
|
---|
| 6398 | VspOspViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
|
---|
| 6399 | {
|
---|
| 6400 | mHierarchyManager->CollectObjects(box, objects);
|
---|
| 6401 | }
|
---|
[1692] | 6402 |
|
---|
[1737] | 6403 |
|
---|
[1709] | 6404 | #if 1
|
---|
[1180] | 6405 |
|
---|
[1686] | 6406 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 6407 | {
|
---|
| 6408 | int samplesPerPass;
|
---|
| 6409 | int numSamples;
|
---|
| 6410 | int castSamples = 0;
|
---|
[1718] | 6411 | int oldSamples = 0;
|
---|
| 6412 | int samplesForStats;
|
---|
| 6413 | char statsPrefix[100];
|
---|
| 6414 | char suffix[100];
|
---|
[1713] | 6415 | int splitsStepSize;
|
---|
[1686] | 6416 |
|
---|
| 6417 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1718] | 6418 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1686] | 6419 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 6420 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[1718] | 6421 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.stepSize", splitsStepSize);
|
---|
| 6422 |
|
---|
[1919] | 6423 | bool useHisto;
|
---|
| 6424 | int histoMem;
|
---|
| 6425 |
|
---|
| 6426 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 6427 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoMem", histoMem);
|
---|
| 6428 |
|
---|
[1718] | 6429 | Debug << "step size: " << splitsStepSize << endl;
|
---|
[1686] | 6430 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 6431 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 6432 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 6433 |
|
---|
[1773] | 6434 | cout << "reseting pvs ... ";
|
---|
[1686] | 6435 |
|
---|
| 6436 | // reset pvs and start over from zero
|
---|
[1718] | 6437 | mViewCellsTree->ResetPvs();
|
---|
| 6438 |
|
---|
[1686] | 6439 | cout << "finished" << endl;
|
---|
| 6440 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 6441 |
|
---|
[1811] | 6442 | vector<int> evalStrats;
|
---|
| 6443 |
|
---|
| 6444 | // mix of sampling strategies
|
---|
[1919] | 6445 | if (0)
|
---|
| 6446 | {
|
---|
| 6447 | evalStrats.push_back(SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION);
|
---|
| 6448 | }
|
---|
| 6449 | else
|
---|
| 6450 | {
|
---|
| 6451 | /*evalStrats.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 6452 | evalStrats.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
|
---|
| 6453 | evalStrats.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 6454 | */
|
---|
| 6455 | evalStrats.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 6456 | }
|
---|
[1910] | 6457 |
|
---|
[1826] | 6458 | Debug << "casting eval strategies: ";
|
---|
| 6459 | for (int i = 0; i < (int)evalStrats.size(); ++ i)
|
---|
| 6460 | Debug << evalStrats[i] << " ";
|
---|
| 6461 | Debug << endl;
|
---|
[1811] | 6462 |
|
---|
[1843] | 6463 | cout << "casting eval strategies: ";
|
---|
| 6464 | for (int i = 0; i < (int)evalStrats.size(); ++ i)
|
---|
| 6465 | cout << evalStrats[i] << " ";
|
---|
| 6466 | cout << endl;
|
---|
| 6467 |
|
---|
[1919] | 6468 | int pass = 0;
|
---|
| 6469 |
|
---|
[1686] | 6470 | while (castSamples < numSamples)
|
---|
| 6471 | {
|
---|
| 6472 | ///////////////
|
---|
| 6473 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 6474 |
|
---|
[1718] | 6475 | VssRayContainer evaluationSamples;
|
---|
[1686] | 6476 | const int samplingType = mEvaluationSamplingType;
|
---|
| 6477 |
|
---|
| 6478 | long startTime = GetTime();
|
---|
| 6479 |
|
---|
| 6480 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 6481 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
[1778] | 6482 |
|
---|
[1903] | 6483 | if (1)
|
---|
| 6484 | {
|
---|
| 6485 | CastPassSamples(samplesPerPass, evalStrats, evaluationSamples);
|
---|
| 6486 | }
|
---|
| 6487 | else
|
---|
| 6488 | {
|
---|
| 6489 | // use mixed distributions
|
---|
| 6490 | CastPassSamples2(samplesPerPass, evaluationSamples);
|
---|
| 6491 | }
|
---|
| 6492 |
|
---|
[1686] | 6493 | castSamples += samplesPerPass;
|
---|
| 6494 |
|
---|
| 6495 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1718] | 6496 |
|
---|
| 6497 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6498 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1718] | 6499 |
|
---|
| 6500 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6501 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 6502 |
|
---|
| 6503 | startTime = GetTime();
|
---|
| 6504 |
|
---|
| 6505 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 6506 |
|
---|
| 6507 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6508 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6509 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6510 |
|
---|
[1758] | 6511 | if ((castSamples >= samplesForStats + oldSamples) ||
|
---|
| 6512 | (castSamples >= numSamples))
|
---|
[1718] | 6513 | {
|
---|
| 6514 | oldSamples += samplesForStats;
|
---|
[1686] | 6515 |
|
---|
[1718] | 6516 | ///////////
|
---|
| 6517 | //-- output stats
|
---|
[1686] | 6518 |
|
---|
[1718] | 6519 | sprintf(suffix, "-%09d-eval.log", castSamples);
|
---|
| 6520 | const string filename = string(statsPrefix) + string(suffix);
|
---|
[1710] | 6521 |
|
---|
[1718] | 6522 | startTime = GetTime();
|
---|
[1732] | 6523 |
|
---|
[1718] | 6524 | cout << "compute new statistics ... " << endl;
|
---|
[1710] | 6525 |
|
---|
[1718] | 6526 | ofstream ofstr(filename.c_str());
|
---|
[1919] | 6527 | mHierarchyManager->EvaluateSubdivision2(ofstr, splitsStepSize, false, useHisto, histoMem, pass);
|
---|
[1718] | 6528 |
|
---|
| 6529 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6530 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1732] | 6531 | cout << "*************************************" << endl;
|
---|
| 6532 |
|
---|
[1718] | 6533 | Debug << "statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6534 |
|
---|
[1750] | 6535 | #if 0
|
---|
[1787] | 6536 | //////////////
|
---|
[1745] | 6537 | // filtered stats
|
---|
[1790] | 6538 |
|
---|
[1745] | 6539 | sprintf(suffix, "-%09d-eval-filter.log", castSamples);
|
---|
| 6540 | const string filename2 = string(statsPrefix) + string(suffix);
|
---|
| 6541 |
|
---|
| 6542 | startTime = GetTime();
|
---|
| 6543 |
|
---|
| 6544 | cout << "compute new statistics for filtered pvs ... " << endl;
|
---|
| 6545 |
|
---|
| 6546 | ofstream ofstr2(filename2.c_str());
|
---|
| 6547 | mHierarchyManager->EvaluateSubdivision2(ofstr2, splitsStepSize, true);
|
---|
| 6548 |
|
---|
| 6549 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6550 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6551 | cout << "*************************************" << endl;
|
---|
[1787] | 6552 | Debug << "filtered statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1745] | 6553 | #endif
|
---|
| 6554 |
|
---|
[1718] | 6555 | // only for debugging purpose
|
---|
[1732] | 6556 | if (0)
|
---|
[1718] | 6557 | {
|
---|
| 6558 | ViewCellContainer viewCells;
|
---|
| 6559 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), viewCells);
|
---|
| 6560 |
|
---|
| 6561 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
| 6562 | int pvsSize = 0;
|
---|
| 6563 |
|
---|
| 6564 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 6565 | {
|
---|
| 6566 | pvsSize += (*vit)->GetPvs().GetSize();
|
---|
| 6567 | }
|
---|
| 6568 |
|
---|
[1787] | 6569 | cout << "debug entries: " << pvsSize << ", memcost: "
|
---|
| 6570 | << (float)pvsSize * ObjectPvs::GetEntrySize() << endl;
|
---|
[1718] | 6571 | }
|
---|
[1919] | 6572 | ++ pass;
|
---|
[1718] | 6573 | }
|
---|
| 6574 |
|
---|
[1709] | 6575 | disposeRays(evaluationSamples, NULL);
|
---|
[1686] | 6576 | }
|
---|
[1917] | 6577 |
|
---|
| 6578 | ////////////
|
---|
| 6579 | //-- histogram
|
---|
[1919] | 6580 | #if 1
|
---|
[1917] | 6581 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
| 6582 | int histoStepSize;
|
---|
| 6583 |
|
---|
| 6584 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 6585 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
| 6586 |
|
---|
| 6587 | if (useHisto)
|
---|
| 6588 | {
|
---|
| 6589 | // evaluate view cells in a histogram
|
---|
[1919] | 6590 | char str[64];
|
---|
[1917] | 6591 |
|
---|
| 6592 | // hack: just show final view cells
|
---|
| 6593 | int pass = (int)mViewCells.size();
|
---|
| 6594 | //for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
| 6595 | if (1)
|
---|
| 6596 | {
|
---|
| 6597 | string filename;
|
---|
| 6598 |
|
---|
| 6599 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 6600 |
|
---|
| 6601 | //////////////////////////////////////////
|
---|
| 6602 | //-- evaluate histogram for pvs size
|
---|
| 6603 |
|
---|
| 6604 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 6605 |
|
---|
[1919] | 6606 | sprintf(str, "-%09d-histo-pvs2.log", pass);
|
---|
| 6607 | filename = string(statsPrefix) + string(str);
|
---|
[1917] | 6608 |
|
---|
| 6609 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 6610 | }
|
---|
| 6611 | }
|
---|
[1919] | 6612 | #endif
|
---|
[1686] | 6613 | }
|
---|
[1917] | 6614 |
|
---|
[1551] | 6615 | #endif
|
---|
[1786] | 6616 |
|
---|
| 6617 |
|
---|
| 6618 |
|
---|
| 6619 | }
|
---|