[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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[1233] | 10 | #include "HierarchyManager.h"
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[440] | 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[931] | 17 | #include "BoundingBoxConverter.h"
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[979] | 18 | #include "GlRenderer.h"
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[1001] | 19 | #include "ResourceManager.h"
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[1315] | 20 | #include "IntersectableWrapper.h"
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[1233] | 21 | #include "VspTree.h"
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| 22 | #include "OspTree.h"
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[1259] | 23 | #include "BvHierarchy.h"
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[1520] | 24 | #include "SamplingStrategy.h"
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[1545] | 25 | #include "SceneGraph.h"
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[440] | 26 |
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[1278] | 27 |
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[1715] | 28 |
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[1764] | 29 | // warning: Should not count origin object for sampling
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| 30 | // because it disturbs heuristics
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[1715] | 31 | #define SAMPLE_ORIGIN_OBJECTS 0 // matt temp
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[931] | 32 |
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[1594] | 33 | // $$JB HACK
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[1826] | 34 | #define USE_KD_PVS 0
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[1771] | 35 | #define KD_PVS_AREA (1e-5f)
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[1486] | 36 |
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[1703] | 37 |
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| 38 |
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[863] | 39 | namespace GtpVisibilityPreprocessor {
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[860] | 40 |
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| 41 |
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[712] | 42 | // HACK
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| 43 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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[1764] | 44 | //const static bool CLAMP_TO_BOX = false;
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| 45 | const static bool CLAMP_TO_BOX = true;
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[517] | 46 |
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[1705] | 47 |
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[1703] | 48 | int ViewCellsManager::sRenderCostEvaluationType = 0;
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| 49 |
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| 50 |
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[697] | 51 | template <typename T> class myless
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| 52 | {
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| 53 | public:
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| 54 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 55 | bool operator() (T v1, T v2) const
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| 56 | {
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| 57 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 58 | }
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| 59 | };
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| 60 |
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| 61 |
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[1264] | 62 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 63 | mRenderer(NULL),
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[574] | 64 | mInitialSamples(0),
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[440] | 65 | mConstructionSamples(0),
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| 66 | mPostProcessSamples(0),
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[470] | 67 | mVisualizationSamples(0),
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| 68 | mTotalAreaValid(false),
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[517] | 69 | mTotalArea(0.0f),
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[547] | 70 | mViewCellsFinished(false),
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[562] | 71 | mMaxPvsSize(9999999),
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[1686] | 72 | mMinPvsSize(0),
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[719] | 73 | mMaxPvsRatio(1.0),
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[1145] | 74 | mViewCellPvsIsUpdated(false),
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[1264] | 75 | mPreprocessor(NULL),
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[1545] | 76 | mViewCellsTree(viewCellsTree),
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| 77 | mUsePredefinedViewCells(false)
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[440] | 78 | {
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[542] | 79 | mViewSpaceBox.Initialize();
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[482] | 80 | ParseEnvironment();
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[580] | 81 |
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[1264] | 82 | mViewCellsTree->SetViewCellsManager(this);
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[440] | 83 | }
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| 84 |
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[517] | 85 |
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[482] | 86 | void ViewCellsManager::ParseEnvironment()
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| 87 | {
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[503] | 88 | // visualization stuff
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[1761] | 89 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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[1004] | 90 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 91 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 92 |
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[1004] | 93 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 94 |
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[1004] | 95 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 96 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 98 |
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[1004] | 99 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 100 |
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[1004] | 101 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 102 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 103 |
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[1004] | 104 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 105 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 106 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 107 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 108 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 109 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 110 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 111 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[1703] | 112 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", sRenderCostEvaluationType);
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[710] | 113 |
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[1004] | 114 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 115 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 116 |
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[664] | 117 | char buf[100];
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[1004] | 118 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 119 |
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[1773] | 120 | // mix of sampling strategies
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[1825] | 121 | if (1)
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[1773] | 122 | {
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| 123 | mStrategies.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
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| 124 | mStrategies.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
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| 125 | mStrategies.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
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| 126 | }
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| 127 | else
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| 128 | {
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[1816] | 129 | mStrategies.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
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| 130 | //mStrategies.push_back(SamplingStrategy::VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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[1773] | 131 | mStrategies.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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[1816] | 132 | //mStrategies.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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| 133 | //mStrategies.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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[1773] | 134 | }
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| 135 |
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[1826] | 136 |
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| 137 | Debug << "casting strategies: ";
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| 138 | for (int i = 0; i < (int)mStrategies.size(); ++ i)
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| 139 | Debug << mStrategies[i] << " ";
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| 140 | Debug << endl;
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| 141 |
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[1020] | 142 | // sampling type for view cells construction samples
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[1695] | 143 | if (strcmp(buf, "object") == 0)
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[722] | 144 | {
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[1695] | 145 | mSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 146 | }
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| 147 | else if (strcmp(buf, "box") == 0)
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| 148 | {
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[1520] | 149 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 150 | }
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[664] | 151 | else if (strcmp(buf, "directional") == 0)
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[722] | 152 | {
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[1520] | 153 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 154 | }
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[1020] | 155 | else if (strcmp(buf, "object_directional") == 0)
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| 156 | {
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[1520] | 157 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 158 | }
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[1695] | 159 | else if (strcmp(buf, "reverse_object") == 0)
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| 160 | {
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| 161 | mSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 162 | }
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[1022] | 163 | /*else if (strcmp(buf, "interior") == 0)
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| 164 | {
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| 165 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 166 | }*/
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[1020] | 167 | else
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| 168 | {
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[666] | 169 | Debug << "error! wrong sampling type" << endl;
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| 170 | exit(0);
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| 171 | }
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[660] | 172 |
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[1020] | 173 | // sampling type for evaluation samples
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[1004] | 174 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 175 |
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[1695] | 176 | if (strcmp(buf, "object") == 0)
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[722] | 177 | {
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[1695] | 178 | mEvaluationSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 179 | }
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| 180 | else if (strcmp(buf, "box") == 0)
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| 181 | {
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[1520] | 182 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 183 | }
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| 184 | else if (strcmp(buf, "directional") == 0)
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| 185 | {
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[1520] | 186 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 187 | }
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[1020] | 188 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 189 | {
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[1520] | 190 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 191 | }
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[1695] | 192 | else if (strcmp(buf, "reverse_object") == 0)
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| 193 | {
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| 194 | mEvaluationSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 195 | }
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[1022] | 196 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 197 | {
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[1520] | 198 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 199 | }*/
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[1020] | 200 | else
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| 201 | {
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[1695] | 202 | mEvaluationSamplingType = -1;
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[722] | 203 | Debug << "error! wrong sampling type" << endl;
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| 204 | exit(0);
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| 205 | }
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[503] | 206 |
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[1004] | 207 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 208 |
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[734] | 209 | if (strcmp(buf, "perobject") == 0)
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[728] | 210 | {
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[1703] | 211 | sRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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[728] | 212 | }
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[1703] | 213 | else if (strcmp(buf, "pertriangle") == 0)
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[728] | 214 | {
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[1703] | 215 | sRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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[728] | 216 | }
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| 217 | else
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| 218 | {
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| 219 | Debug << "error! wrong sampling type" << endl;
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| 220 | exit(0);
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| 221 | }
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| 222 |
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[1004] | 223 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 224 |
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[482] | 225 | if (strcmp(buf, "PVS") == 0)
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| 226 | mColorCode = 1;
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| 227 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 228 | mColorCode = 2;
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| 229 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 230 | mColorCode = 3;
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| 231 | else
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| 232 | mColorCode = 0;
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| 233 |
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[664] | 234 |
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[1418] | 235 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 236 | Debug << "color code: " << mColorCode << endl;
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| 237 |
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| 238 | Debug << "export rays: " << mExportRays << endl;
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| 239 | Debug << "export geometry: " << mExportGeometry << endl;
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| 240 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 241 |
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| 242 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 243 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 244 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 245 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 246 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 247 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 248 | Debug << "export to file: " << mExportViewCells << endl;
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| 249 |
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[801] | 250 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 251 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 252 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 253 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 254 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 255 | Debug << "sampling type: " << mSamplingType << endl;
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[1703] | 256 | Debug << "render cost evaluation type: " << sRenderCostEvaluationType << endl;
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[728] | 257 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 258 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 259 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 260 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 261 |
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| 262 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 263 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[664] | 264 | Debug << endl;
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[440] | 265 | }
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| 266 |
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[485] | 267 |
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[440] | 268 | ViewCellsManager::~ViewCellsManager()
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| 269 | {
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[1020] | 270 | // HACK: if view cells tree does not
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[1264] | 271 | // handle view cells, we have to do it here
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[1020] | 272 | // question: rather create view cells resource manager?
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[598] | 273 | if (!ViewCellsTreeConstructed())
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[1141] | 274 | {
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[598] | 275 | CLEAR_CONTAINER(mViewCells);
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[1141] | 276 | }
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[1696] | 277 | else
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| 278 | {
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| 279 | DEL_PTR(mViewCellsTree);
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| 280 | }
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[440] | 281 | }
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| 282 |
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[1743] | 283 | Intersectable *
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| 284 | ViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
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| 285 | {
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[1761] | 286 | #if USE_KD_PVS
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| 287 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
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| 288 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(isTermination ?
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| 289 | ray.mTermination : ray.mOrigin,
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| 290 | area);
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| 291 | return
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| 292 | GetPreprocessor()->mKdTree->
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| 293 | GetOrCreateKdIntersectable(node);
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| 294 | #else
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[1743] | 295 | return isTermination ? ray.mTerminationObject : ray.mOriginObject;
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[1761] | 296 | #endif
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[1743] | 297 | }
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[1221] | 298 |
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[1737] | 299 | void
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| 300 | ViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
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| 301 | {
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| 302 | GetPreprocessor()->mKdTree->CollectObjects(box, objects);
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| 303 | }
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[1613] | 304 |
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[1221] | 305 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 306 | {
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| 307 | Mesh *m = vc->GetMesh();
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| 308 |
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[1563] | 309 | if (m)
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| 310 | {
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| 311 | m->ComputeBoundingBox();
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| 312 | return m->mBox;
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[859] | 313 | }
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[485] | 314 |
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[859] | 315 | AxisAlignedBox3 box;
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| 316 | box.Initialize();
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| 317 |
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| 318 | if (!vc->IsLeaf()) {
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| 319 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 320 |
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| 321 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 322 | for (; it != vci->mChildren.end(); ++it) {
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| 323 | box.Include(GetViewCellBox(*it));
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| 324 | }
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| 325 | }
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| 326 |
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| 327 | return box;
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| 328 | }
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| 329 |
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[693] | 330 |
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[574] | 331 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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[1768] | 332 | const vector<int> &strategies,
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| 333 | VssRayContainer &passSamples
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| 334 | ) const
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[527] | 335 | {
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[1633] | 336 | long startTime = GetTime();
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[564] | 337 |
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[1784] | 338 | SimpleRayContainer simpleRays;
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| 339 |
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| 340 | simpleRays.reserve(samplesPerPass);
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| 341 | passSamples.reserve(samplesPerPass * 2); // always creates double rays
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| 342 |
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[1701] | 343 | // create one third of each type
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[1765] | 344 | int castRays = 0;
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[1701] | 345 |
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[1765] | 346 | const int numRaysPerPass = samplesPerPass / (int)strategies.size();
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| 347 | vector<int>::const_iterator iit, iit_end = strategies.end();
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| 348 |
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| 349 | for (iit = strategies.begin(); iit != iit_end; ++ iit)
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| 350 | {
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[1772] | 351 | const int stype = *iit;
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[1765] | 352 | const int newRays =
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| 353 | mPreprocessor->GenerateRays(numRaysPerPass, stype, simpleRays);
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[1772] | 354 |
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[1765] | 355 | cout << "cast " << newRays << " rays of strategy " << stype << endl;
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| 356 | castRays += newRays;
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[1709] | 357 | }
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[1701] | 358 |
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[1784] | 359 | cout << "generated " << samplesPerPass << " samples in "
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| 360 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[1221] | 361 |
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[1633] | 362 | startTime = GetTime();
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[1784] | 363 |
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[573] | 364 | // shoot simple ray and add it to importance samples
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[1520] | 365 | mPreprocessor->CastRays(simpleRays, passSamples, true);
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[1784] | 366 | cout << "cast " << samplesPerPass << " samples in "
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| 367 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[570] | 368 |
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[574] | 369 | return (int)passSamples.size();
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| 370 | }
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[570] | 371 |
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[574] | 372 |
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| 373 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 374 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 375 | {
|
---|
| 376 | cout << "disposing samples ... ";
|
---|
[582] | 377 | long startTime = GetTime();
|
---|
| 378 | int n = (int)rays.size();
|
---|
| 379 |
|
---|
[573] | 380 | if (outRays)
|
---|
[542] | 381 | {
|
---|
[574] | 382 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 383 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 384 | {
|
---|
| 385 | outRays->push_back(*it);
|
---|
| 386 | }
|
---|
[573] | 387 | }
|
---|
| 388 | else
|
---|
| 389 | {
|
---|
[639] | 390 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 391 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 392 | {
|
---|
| 393 | if (!(*it)->IsActive())
|
---|
| 394 | delete (*it);
|
---|
| 395 | }
|
---|
[573] | 396 | }
|
---|
[639] | 397 |
|
---|
[574] | 398 | cout << "finished" << endl;
|
---|
[582] | 399 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[573] | 400 | }
|
---|
[570] | 401 |
|
---|
| 402 |
|
---|
[573] | 403 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 404 | {
|
---|
| 405 | int numSamples = 0;
|
---|
[1077] | 406 |
|
---|
[573] | 407 | SimpleRayContainer simpleRays;
|
---|
[574] | 408 | VssRayContainer initialSamples;
|
---|
[540] | 409 |
|
---|
[1381] | 410 | // store pointer to preprocessor for further use during construction
|
---|
| 411 | mPreprocessor = preprocessor;
|
---|
| 412 |
|
---|
[1563] | 413 |
|
---|
[1381] | 414 | ///////////////////////////////////////////////////////
|
---|
| 415 | //-- Initial sampling for the construction of the view cell hierarchy.
|
---|
| 416 | //-- We use uniform sampling / box based sampling.
|
---|
| 417 |
|
---|
[752] | 418 | long startTime = GetTime();
|
---|
[1633] | 419 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
|
---|
[1414] | 420 |
|
---|
[1381] | 421 | // cast initial samples
|
---|
[1778] | 422 |
|
---|
| 423 | // mix of sampling strategies
|
---|
| 424 | vector<int>dummy;
|
---|
| 425 | //dummy.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 426 | //dummy.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 427 | //dummy.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 428 |
|
---|
[1773] | 429 | CastPassSamples(mInitialSamples, mStrategies, initialSamples);
|
---|
[1278] | 430 |
|
---|
[1221] | 431 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 432 |
|
---|
[573] | 433 | // construct view cells
|
---|
[752] | 434 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 435 |
|
---|
[727] | 436 | // initial samples count for overall samples ...
|
---|
[752] | 437 | numSamples += mInitialSamples;
|
---|
[542] | 438 |
|
---|
[574] | 439 | // rays can be passed or deleted
|
---|
[639] | 440 | disposeRays(initialSamples, outRays);
|
---|
[752] | 441 |
|
---|
| 442 | cout << "time needed for initial construction: "
|
---|
| 443 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 444 |
|
---|
| 445 | Debug << "time needed for initial construction: "
|
---|
| 446 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 447 |
|
---|
[1444] | 448 | // collect view cells and compute statistics
|
---|
| 449 | ResetViewCells();
|
---|
[752] | 450 |
|
---|
[1444] | 451 |
|
---|
| 452 | ///////////////////
|
---|
| 453 | //-- Initial hierarchy construction finished.
|
---|
[1381] | 454 | //-- We can do some stats and visualization
|
---|
| 455 |
|
---|
[1444] | 456 | if (0)
|
---|
[660] | 457 | {
|
---|
[1444] | 458 | //-- export initial view cell partition
|
---|
[1563] | 459 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
[1416] | 460 |
|
---|
[1414] | 461 | const string filename("viewcells.wrl");
|
---|
| 462 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
[712] | 463 |
|
---|
[660] | 464 | if (exporter)
|
---|
| 465 | {
|
---|
[1414] | 466 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
| 467 |
|
---|
[660] | 468 | if (mExportGeometry)
|
---|
[712] | 469 | {
|
---|
[660] | 470 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 471 | }
|
---|
[660] | 472 |
|
---|
[750] | 473 | exporter->SetWireframe();
|
---|
[1760] | 474 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[660] | 475 |
|
---|
| 476 | delete exporter;
|
---|
[712] | 477 | cout << "finished" << endl;
|
---|
[660] | 478 | }
|
---|
| 479 | }
|
---|
| 480 |
|
---|
[1381] | 481 |
|
---|
[1419] | 482 | //////////////////////
|
---|
[1381] | 483 | //-- Cast some more sampling after initial construction.
|
---|
| 484 | //-- The additional rays can be used to gain
|
---|
| 485 | //-- some more information before the bottom-up merge
|
---|
| 486 | //-- note: guided rays could be used for this task
|
---|
| 487 |
|
---|
[1414] | 488 | // time spent after construction of the initial partition
|
---|
[1381] | 489 | startTime = GetTime();
|
---|
[574] | 490 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[573] | 491 |
|
---|
| 492 | while (numSamples < n)
|
---|
| 493 | {
|
---|
[596] | 494 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 495 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 496 |
|
---|
[574] | 497 | VssRayContainer constructionSamples;
|
---|
| 498 |
|
---|
[727] | 499 | // cast new samples
|
---|
[574] | 500 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[1773] | 501 | mStrategies,
|
---|
[574] | 502 | constructionSamples);
|
---|
| 503 |
|
---|
| 504 | cout << "finished" << endl;
|
---|
| 505 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 506 |
|
---|
[727] | 507 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 508 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 509 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 510 |
|
---|
[574] | 511 | cout << "finished" << endl;
|
---|
| 512 |
|
---|
[639] | 513 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 514 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 515 | }
|
---|
[752] | 516 |
|
---|
[1563] | 517 | if (0)
|
---|
| 518 | {
|
---|
| 519 | ///////////////
|
---|
| 520 | //-- Get stats after the additional sampling step
|
---|
| 521 | //-- and before the bottom-up merge step
|
---|
[570] | 522 |
|
---|
[1563] | 523 | EvaluateViewCellsStats();
|
---|
| 524 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 525 | << mCurrentViewCellsStats << endl;
|
---|
| 526 |
|
---|
| 527 | mRenderer->RenderScene();
|
---|
| 528 | SimulationStatistics ss;
|
---|
| 529 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 530 |
|
---|
[1563] | 531 | Debug << ss << endl;
|
---|
| 532 | }
|
---|
[660] | 533 |
|
---|
[1416] | 534 | ////////////////////
|
---|
[1381] | 535 | //-- post processing of the initial construction
|
---|
| 536 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 537 | //-- We can additionally cast some post processing sample rays.
|
---|
| 538 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 539 |
|
---|
| 540 | VssRayContainer postProcessSamples;
|
---|
| 541 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 542 |
|
---|
[1773] | 543 | CastPassSamples(mPostProcessSamples, mStrategies, postProcessSamples);
|
---|
[1381] | 544 |
|
---|
| 545 | cout << "finished" << endl;
|
---|
[574] | 546 | cout << "starting post processing and visualization" << endl;
|
---|
| 547 |
|
---|
[1444] | 548 | // store view cells with rays for post processing?
|
---|
[574] | 549 | const bool storeViewCells = true;
|
---|
[605] | 550 |
|
---|
| 551 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 552 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 553 |
|
---|
[1381] | 554 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 555 |
|
---|
[1414] | 556 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 557 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 558 |
|
---|
[1414] | 559 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 560 | disposeRays(postProcessSamples, outRays);
|
---|
| 561 |
|
---|
[1749] | 562 |
|
---|
| 563 | // write view cells to disc
|
---|
| 564 | if (mExportViewCells)
|
---|
| 565 | {
|
---|
| 566 | char filename[100];
|
---|
| 567 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 568 | ExportViewCells(filename, mExportPvs, mPreprocessor->mObjects);
|
---|
| 569 | }
|
---|
| 570 |
|
---|
[1416] | 571 | ////////////////
|
---|
[1381] | 572 | //-- Evaluation of the resulting view cell partition.
|
---|
| 573 | //-- We cast a number of new samples and measure the render cost
|
---|
| 574 |
|
---|
[801] | 575 | if (mEvaluateViewCells)
|
---|
| 576 | {
|
---|
[1145] | 577 | EvalViewCellPartition();
|
---|
[801] | 578 | }
|
---|
[1749] | 579 |
|
---|
[1416] | 580 | /////////////////
|
---|
[1769] | 581 | //-- Show some visualizations
|
---|
[1381] | 582 |
|
---|
[666] | 583 | if (mShowVisualization)
|
---|
| 584 | {
|
---|
[1769] | 585 | if (0)
|
---|
| 586 | {
|
---|
[1773] | 587 | mStrategies.clear();
|
---|
| 588 | mStrategies.push_back(SamplingStrategy::VIEWCELL_BORDER_BASED_DISTRIBUTION);
|
---|
[1769] | 589 | }
|
---|
| 590 |
|
---|
[1633] | 591 | ///////////////
|
---|
[1381] | 592 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[1633] | 593 |
|
---|
| 594 | VssRayContainer visSamples;
|
---|
| 595 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
[1773] | 596 | mStrategies,
|
---|
[1633] | 597 | visSamples);
|
---|
[574] | 598 |
|
---|
[666] | 599 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[1633] | 600 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
[574] | 601 |
|
---|
[1444] | 602 | // various visualizations
|
---|
[1633] | 603 | Visualize(preprocessor->mObjects, visSamples);
|
---|
[574] | 604 |
|
---|
[1633] | 605 | disposeRays(visSamples, outRays);
|
---|
[666] | 606 | }
|
---|
[574] | 607 |
|
---|
[1444] | 608 | // recalculate view cells
|
---|
| 609 | EvaluateViewCellsStats();
|
---|
| 610 |
|
---|
[573] | 611 | return numSamples;
|
---|
[527] | 612 | }
|
---|
| 613 |
|
---|
[547] | 614 |
|
---|
[1418] | 615 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 616 | {
|
---|
| 617 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 618 | }
|
---|
| 619 |
|
---|
| 620 |
|
---|
[752] | 621 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 622 | const int nViewCells)
|
---|
[728] | 623 | {
|
---|
| 624 | std::ofstream outstream;
|
---|
| 625 | outstream.open(filename.c_str());
|
---|
| 626 |
|
---|
| 627 | ViewCellContainer viewCells;
|
---|
[1771] | 628 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 629 | #if 1
|
---|
[735] | 630 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[1771] | 631 | #else
|
---|
| 632 | viewCells = mViewCells;
|
---|
| 633 | #endif
|
---|
[728] | 634 |
|
---|
| 635 | float maxRenderCost, minRenderCost;
|
---|
[734] | 636 |
|
---|
| 637 | // sort by render cost
|
---|
| 638 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 639 |
|
---|
| 640 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 641 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 642 |
|
---|
[991] | 643 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 644 |
|
---|
[997] | 645 | int histoIntervals;
|
---|
[1004] | 646 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 647 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 648 |
|
---|
[997] | 649 | int histoMaxVal;
|
---|
[1004] | 650 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 651 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 652 |
|
---|
[997] | 653 |
|
---|
[728] | 654 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 655 | const float stepSize = range / (float)intervals;
|
---|
[728] | 656 |
|
---|
[735] | 657 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 658 |
|
---|
| 659 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 660 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 661 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 662 |
|
---|
[736] | 663 | int j = 0;
|
---|
[735] | 664 | int i = 0;
|
---|
| 665 |
|
---|
[734] | 666 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 667 |
|
---|
[744] | 668 | // count for integral
|
---|
| 669 | float volSum = 0;
|
---|
| 670 | int smallerCostSum = 0;
|
---|
[735] | 671 |
|
---|
[734] | 672 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 673 | while (1)
|
---|
| 674 | {
|
---|
[744] | 675 | // count for histogram value
|
---|
| 676 | float volDif = 0;
|
---|
| 677 | int smallerCostDif = 0;
|
---|
[736] | 678 |
|
---|
[734] | 679 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 680 | {
|
---|
[744] | 681 | volSum += viewCells[i]->GetVolume();
|
---|
| 682 | volDif += viewCells[i]->GetVolume();
|
---|
| 683 |
|
---|
[734] | 684 | ++ i;
|
---|
[744] | 685 | ++ smallerCostSum;
|
---|
| 686 | ++ smallerCostDif;
|
---|
[734] | 687 | }
|
---|
[736] | 688 |
|
---|
[744] | 689 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 690 | break;
|
---|
[736] | 691 |
|
---|
[744] | 692 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 693 | const float volRatioSum = volSum / totalVol;
|
---|
| 694 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 695 |
|
---|
[991] | 696 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 697 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 698 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 699 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 700 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 701 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 702 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 703 |
|
---|
| 704 | // increase current render cost
|
---|
[734] | 705 | currentRenderCost += stepSize;
|
---|
| 706 | }
|
---|
[735] | 707 |
|
---|
[734] | 708 | outstream.close();
|
---|
| 709 | }
|
---|
| 710 |
|
---|
[735] | 711 |
|
---|
[979] | 712 |
|
---|
| 713 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 714 | ObjectContainer *objects,
|
---|
[1676] | 715 | bool finalizeViewCells,
|
---|
[979] | 716 | BoundingBoxConverter *bconverter)
|
---|
| 717 |
|
---|
| 718 | {
|
---|
| 719 | ViewCellsParser parser;
|
---|
| 720 | ViewCellsManager *vm = NULL;
|
---|
| 721 |
|
---|
[1616] | 722 | const long startTime = GetTime();
|
---|
| 723 | bool success = parser.ParseViewCellsFile(filename, &vm, objects, bconverter);
|
---|
| 724 |
|
---|
[1715] | 725 | cout<<"viewcells parsed "<<endl<<flush;
|
---|
| 726 |
|
---|
[1616] | 727 | if (success)
|
---|
[979] | 728 | {
|
---|
[1621] | 729 | //vm->ResetViewCells();
|
---|
[1679] | 730 | //hack
|
---|
| 731 | vm->mViewCells.clear();
|
---|
| 732 | ViewCellContainer leaves;
|
---|
| 733 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
[979] | 734 |
|
---|
[1679] | 735 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[1621] | 736 |
|
---|
[1679] | 737 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 738 | {
|
---|
| 739 | vm->mViewCells.push_back(*it);
|
---|
| 740 | }
|
---|
[979] | 741 | vm->mViewCellsFinished = true;
|
---|
| 742 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 743 |
|
---|
| 744 | if (finalizeViewCells)
|
---|
| 745 | {
|
---|
[1444] | 746 | // create the meshes and compute volumes
|
---|
[979] | 747 | vm->FinalizeViewCells(true);
|
---|
[1616] | 748 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 749 | }
|
---|
| 750 |
|
---|
| 751 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 752 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 753 | }
|
---|
| 754 | else
|
---|
| 755 | {
|
---|
| 756 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 757 | DEL_PTR(vm);
|
---|
| 758 | }
|
---|
| 759 |
|
---|
| 760 | return vm;
|
---|
| 761 | }
|
---|
| 762 |
|
---|
| 763 |
|
---|
| 764 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 765 | const bool exportPvs,
|
---|
| 766 | const ObjectContainer &objects)
|
---|
| 767 | {
|
---|
[1002] | 768 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 769 | {
|
---|
[997] | 770 | return false;
|
---|
[1545] | 771 | }
|
---|
[997] | 772 |
|
---|
[979] | 773 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 774 |
|
---|
[1201] | 775 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 776 |
|
---|
| 777 | // for output we need unique ids for each view cell
|
---|
| 778 | CreateUniqueViewCellIds();
|
---|
| 779 |
|
---|
| 780 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 781 | stream << "<VisibilitySolution>" << endl;
|
---|
| 782 |
|
---|
[1262] | 783 | if (exportPvs)
|
---|
| 784 | {
|
---|
| 785 | //-- export bounding boxes
|
---|
| 786 | stream << "<BoundingBoxes>" << endl;
|
---|
[1614] | 787 | #if USE_KD_PVS
|
---|
[1761] | 788 | vector<KdIntersectable *>::iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
[979] | 789 |
|
---|
[1614] | 790 | int id = 0;
|
---|
| 791 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 792 | {
|
---|
[1761] | 793 | Intersectable *obj = *kit;
|
---|
| 794 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
| 795 |
|
---|
| 796 | obj->SetId(id);
|
---|
| 797 |
|
---|
| 798 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 799 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 800 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1614] | 801 | }
|
---|
| 802 | #else
|
---|
[1761] | 803 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 804 |
|
---|
[1262] | 805 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 806 | {
|
---|
[1563] | 807 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 808 |
|
---|
[1551] | 809 | ////////////
|
---|
[979] | 810 | //-- the bounding boxes
|
---|
[1563] | 811 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[979] | 812 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 813 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 814 | }
|
---|
[1614] | 815 | #endif
|
---|
[1262] | 816 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 817 | }
|
---|
[979] | 818 |
|
---|
[1264] | 819 |
|
---|
[1551] | 820 | /////////////
|
---|
[979] | 821 | //-- export the view cells and the pvs
|
---|
| 822 |
|
---|
| 823 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 824 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 825 |
|
---|
[979] | 826 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 827 |
|
---|
| 828 | stream << "</ViewCells>" << endl;
|
---|
| 829 |
|
---|
| 830 |
|
---|
[1551] | 831 | //////////
|
---|
[1262] | 832 | //-- export the view space hierarchy
|
---|
[979] | 833 |
|
---|
[1262] | 834 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 835 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 836 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 837 |
|
---|
[979] | 838 | mVspBspTree->Export(stream);
|
---|
[1286] | 839 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 840 |
|
---|
| 841 | stream << "</VisibilitySolution>" << endl;
|
---|
| 842 |
|
---|
| 843 | stream.close();
|
---|
| 844 | cout << "finished" << endl;
|
---|
| 845 |
|
---|
| 846 | return true;
|
---|
| 847 | }
|
---|
| 848 |
|
---|
| 849 |
|
---|
[735] | 850 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 851 | const int nViewCells)
|
---|
[734] | 852 | {
|
---|
| 853 | std::ofstream outstream;
|
---|
| 854 | outstream.open(filename.c_str());
|
---|
| 855 |
|
---|
| 856 | ViewCellContainer viewCells;
|
---|
[1771] | 857 |
|
---|
| 858 | // $$ JB hack - the collect best viewcells does not work?
|
---|
| 859 | #if 0
|
---|
[735] | 860 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[1771] | 861 | #else
|
---|
| 862 | viewCells = mViewCells;
|
---|
| 863 | #endif
|
---|
[1824] | 864 | ViewCellContainer::iterator it = viewCells.begin(),
|
---|
| 865 | it_end = viewCells.end();
|
---|
[1771] | 866 | for (; it != it_end; ++it) {
|
---|
| 867 | //(*it)->UpdatePvsCost();
|
---|
[1772] | 868 | (*it)->SetPvsCost((float)(*it)->GetFilteredPvsSize());
|
---|
[1771] | 869 | }
|
---|
[734] | 870 |
|
---|
[1709] | 871 | float maxPvs, maxVal, minVal;
|
---|
[1771] | 872 |
|
---|
[997] | 873 | // sort by pvs size
|
---|
[735] | 874 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 875 |
|
---|
[1771] | 876 | maxPvs = viewCells.back()->GetPvsCost();
|
---|
[997] | 877 | minVal = 0;
|
---|
| 878 |
|
---|
[991] | 879 | // hack: normalize pvs size
|
---|
[997] | 880 | int histoMaxVal;
|
---|
[1824] | 881 | Environment::GetSingleton()->GetIntValue(
|
---|
| 882 | "Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1709] | 883 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
[997] | 884 |
|
---|
[1121] | 885 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 886 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 887 |
|
---|
[997] | 888 | int histoIntervals;
|
---|
[1004] | 889 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 890 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 891 |
|
---|
[1709] | 892 | const float range = maxVal - minVal;
|
---|
| 893 | int stepSize = (int)(range / intervals);
|
---|
[735] | 894 |
|
---|
[997] | 895 | // set step size to avoid endless loop
|
---|
[735] | 896 | if (!stepSize) stepSize = 1;
|
---|
[979] | 897 |
|
---|
| 898 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 899 |
|
---|
[735] | 900 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 901 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 902 |
|
---|
[1709] | 903 | float currentPvs = minVal;
|
---|
[997] | 904 |
|
---|
[735] | 905 | int i = 0;
|
---|
| 906 | int j = 0;
|
---|
[744] | 907 | float volSum = 0;
|
---|
| 908 | int smallerSum = 0;
|
---|
| 909 |
|
---|
[1771] | 910 | it = viewCells.begin();
|
---|
[735] | 911 |
|
---|
[997] | 912 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 913 | {
|
---|
[744] | 914 | float volDif = 0;
|
---|
| 915 | int smallerDif = 0;
|
---|
[736] | 916 |
|
---|
[997] | 917 | while ((i < (int)viewCells.size()) &&
|
---|
[1771] | 918 | (viewCells[i]->GetPvsCost() < currentPvs))
|
---|
[735] | 919 | {
|
---|
[744] | 920 | volDif += viewCells[i]->GetVolume();
|
---|
| 921 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 922 |
|
---|
[735] | 923 | ++ i;
|
---|
[744] | 924 | ++ smallerDif;
|
---|
| 925 | ++ smallerSum;
|
---|
[735] | 926 | }
|
---|
[736] | 927 |
|
---|
[1771] | 928 | // if (0 && (i < (int)viewCells.size()))
|
---|
| 929 | // Debug << "new pvs cost increase: " << mViewCellsTree->GetPvsCost(viewCells[i])
|
---|
| 930 | // << " " << currentPvs << endl;
|
---|
| 931 |
|
---|
[744] | 932 | const float volRatioDif = volDif / totalVol;
|
---|
| 933 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 934 |
|
---|
[997] | 935 | outstream << "#Pass\n" << j << endl;
|
---|
| 936 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 937 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 938 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 939 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 940 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 941 |
|
---|
| 942 | //-- increase current pvs size to define next interval
|
---|
| 943 | currentPvs += stepSize;
|
---|
[728] | 944 | }
|
---|
[991] | 945 |
|
---|
[735] | 946 | outstream.close();
|
---|
[1771] | 947 |
|
---|
[728] | 948 | }
|
---|
| 949 |
|
---|
[735] | 950 |
|
---|
[1002] | 951 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 952 | {
|
---|
| 953 | return mExportPvs;
|
---|
| 954 | }
|
---|
| 955 |
|
---|
| 956 |
|
---|
[1580] | 957 | void ViewCellsManager::ResetPvs()
|
---|
| 958 | {
|
---|
| 959 | if (ViewCellsTreeConstructed())
|
---|
| 960 | {
|
---|
| 961 | mViewCellsTree->ResetPvs();
|
---|
| 962 | }
|
---|
| 963 | else
|
---|
| 964 | {
|
---|
| 965 | cout << "view cells tree not constructed" << endl;
|
---|
| 966 | }
|
---|
| 967 | }
|
---|
| 968 |
|
---|
| 969 |
|
---|
[1679] | 970 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
| 971 | {
|
---|
| 972 | mViewCellsTree->ExportStats(fileName);
|
---|
| 973 | }
|
---|
| 974 |
|
---|
| 975 |
|
---|
[1145] | 976 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 977 | {
|
---|
| 978 | int samplesPerPass;
|
---|
| 979 | int numSamples;
|
---|
| 980 | int castSamples = 0;
|
---|
[1570] | 981 | char str[64];
|
---|
[1695] | 982 | int oldSamples = 0;
|
---|
[660] | 983 |
|
---|
[1695] | 984 | int samplesForStats;
|
---|
| 985 |
|
---|
[1004] | 986 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1695] | 987 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1004] | 988 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 989 |
|
---|
[664] | 990 | char statsPrefix[100];
|
---|
[1004] | 991 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 992 |
|
---|
[664] | 993 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 994 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 995 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 996 |
|
---|
[801] | 997 | cout << "reseting pvs ... ";
|
---|
| 998 |
|
---|
[1145] | 999 | const bool startFromZero = true;
|
---|
[801] | 1000 |
|
---|
[666] | 1001 | // reset pvs and start over from zero
|
---|
| 1002 | if (startFromZero)
|
---|
| 1003 | {
|
---|
| 1004 | mViewCellsTree->ResetPvs();
|
---|
| 1005 | }
|
---|
[1145] | 1006 | else // start from current sampless
|
---|
[666] | 1007 | {
|
---|
[1145] | 1008 | // statistics before casting more samples
|
---|
[666] | 1009 | cout << "compute new statistics ... ";
|
---|
[1570] | 1010 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1011 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 1012 |
|
---|
| 1013 | mViewCellsTree->ExportStats(fName);
|
---|
| 1014 | cout << "finished" << endl;
|
---|
| 1015 | }
|
---|
[1570] | 1016 |
|
---|
[744] | 1017 | cout << "finished" << endl;
|
---|
[1178] | 1018 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 1019 |
|
---|
[660] | 1020 | while (castSamples < numSamples)
|
---|
[1686] | 1021 | {
|
---|
| 1022 | ///////////////
|
---|
| 1023 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 1024 |
|
---|
[664] | 1025 | VssRayContainer evaluationSamples;
|
---|
[1686] | 1026 | const int samplingType = mEvaluationSamplingType;
|
---|
[663] | 1027 |
|
---|
[1004] | 1028 | long startTime = GetTime();
|
---|
| 1029 |
|
---|
| 1030 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1031 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 1032 |
|
---|
[1773] | 1033 | CastPassSamples(samplesPerPass, mStrategies, evaluationSamples);
|
---|
[664] | 1034 |
|
---|
| 1035 | castSamples += samplesPerPass;
|
---|
| 1036 |
|
---|
[1004] | 1037 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1695] | 1038 |
|
---|
| 1039 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1040 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1695] | 1041 |
|
---|
| 1042 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 1043 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 1044 |
|
---|
| 1045 | startTime = GetTime();
|
---|
| 1046 |
|
---|
[664] | 1047 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 1048 |
|
---|
[1004] | 1049 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1050 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1051 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 1052 |
|
---|
[1695] | 1053 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
| 1054 | {
|
---|
| 1055 | oldSamples += samplesForStats;
|
---|
[1686] | 1056 |
|
---|
[1695] | 1057 | ///////////
|
---|
| 1058 | //-- output stats
|
---|
[1686] | 1059 |
|
---|
[1695] | 1060 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1061 | string fileName = string(statsPrefix) + string(str);
|
---|
[1686] | 1062 |
|
---|
[1695] | 1063 | ///////////////
|
---|
| 1064 | //-- propagate pvs or pvs size information
|
---|
[1586] | 1065 |
|
---|
[1695] | 1066 | startTime = GetTime();
|
---|
| 1067 | ObjectPvs pvs;
|
---|
[664] | 1068 |
|
---|
[1709] | 1069 | cout << "updating pvs for evaluation ... " << endl;
|
---|
[664] | 1070 |
|
---|
[1695] | 1071 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 1072 |
|
---|
| 1073 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1074 | cout << "finished updating the pvs in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1075 | Debug << "pvs evaluated in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1076 |
|
---|
| 1077 | startTime = GetTime();
|
---|
| 1078 | cout << "compute new statistics ... " << endl;
|
---|
| 1079 |
|
---|
| 1080 | ExportStats(fileName);
|
---|
| 1081 |
|
---|
| 1082 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1083 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1084 | Debug << "statistis computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1085 | }
|
---|
| 1086 |
|
---|
[664] | 1087 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 1088 | }
|
---|
[728] | 1089 |
|
---|
[997] | 1090 |
|
---|
[1570] | 1091 | ////////////
|
---|
[997] | 1092 | //-- histogram
|
---|
| 1093 |
|
---|
[1695] | 1094 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[735] | 1095 | bool useHisto;
|
---|
[997] | 1096 | int histoStepSize;
|
---|
[693] | 1097 |
|
---|
[1004] | 1098 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 1099 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 1100 |
|
---|
[735] | 1101 | if (useHisto)
|
---|
[734] | 1102 | {
|
---|
[735] | 1103 | // evaluate view cells in a histogram
|
---|
| 1104 | char s[64];
|
---|
| 1105 |
|
---|
[997] | 1106 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1107 | {
|
---|
[997] | 1108 | string filename;
|
---|
[744] | 1109 |
|
---|
[997] | 1110 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1111 | #if 0
|
---|
[744] | 1112 | //-- evaluate histogram for render cost
|
---|
| 1113 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1114 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1115 |
|
---|
| 1116 | EvalViewCellHistogram(filename, pass);
|
---|
| 1117 |
|
---|
[997] | 1118 | #endif
|
---|
[744] | 1119 | //////////////////////////////////////////
|
---|
[752] | 1120 | //-- evaluate histogram for pvs size
|
---|
[744] | 1121 |
|
---|
| 1122 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1123 |
|
---|
| 1124 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1125 | filename = string(statsPrefix) + string(s);
|
---|
| 1126 |
|
---|
| 1127 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1128 | }
|
---|
[734] | 1129 | }
|
---|
[660] | 1130 | }
|
---|
| 1131 |
|
---|
[704] | 1132 |
|
---|
| 1133 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1134 | {
|
---|
[704] | 1135 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1136 | }
|
---|
[660] | 1137 |
|
---|
[703] | 1138 |
|
---|
[1145] | 1139 | /// Returns index of the best view cells of the neighborhood
|
---|
[1707] | 1140 | static int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
[704] | 1141 | {
|
---|
[705] | 1142 | int bestViewCellIdx = 0;
|
---|
[703] | 1143 |
|
---|
[704] | 1144 | float mergeCost = Limits::Infinity;
|
---|
| 1145 | int i = 0;
|
---|
[703] | 1146 |
|
---|
[734] | 1147 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1148 |
|
---|
[734] | 1149 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1150 | {
|
---|
[734] | 1151 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1152 |
|
---|
| 1153 | if (mc < mergeCost)
|
---|
[704] | 1154 | {
|
---|
| 1155 | mergeCost = mc;
|
---|
| 1156 | bestViewCellIdx = i;
|
---|
[703] | 1157 | }
|
---|
[704] | 1158 | }
|
---|
[703] | 1159 |
|
---|
[704] | 1160 | return bestViewCellIdx;
|
---|
| 1161 | }
|
---|
[703] | 1162 |
|
---|
| 1163 |
|
---|
[728] | 1164 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1165 | {
|
---|
| 1166 | mMaxFilterSize = size;
|
---|
| 1167 | }
|
---|
| 1168 |
|
---|
| 1169 |
|
---|
[1703] | 1170 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) //const
|
---|
[728] | 1171 | {
|
---|
[1703] | 1172 | switch (sRenderCostEvaluationType)
|
---|
[728] | 1173 | {
|
---|
| 1174 | case PER_OBJECT:
|
---|
[752] | 1175 | return 1.0f;
|
---|
[728] | 1176 |
|
---|
| 1177 | case PER_TRIANGLE:
|
---|
[1703] | 1178 | {
|
---|
[1701] | 1179 | return (float)obj->NumberOfFaces();
|
---|
[728] | 1180 | }
|
---|
| 1181 | default:
|
---|
[752] | 1182 | cout << "default" << endl;
|
---|
| 1183 | return 1.0f;
|
---|
[728] | 1184 | }
|
---|
| 1185 |
|
---|
| 1186 | // should not come here
|
---|
[752] | 1187 | return 0.0f;
|
---|
[728] | 1188 | }
|
---|
| 1189 |
|
---|
| 1190 |
|
---|
[704] | 1191 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1192 | const ViewCellContainer &viewCells)
|
---|
| 1193 | {
|
---|
| 1194 | ViewCell *root = currentViewCell;
|
---|
| 1195 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1196 |
|
---|
[704] | 1197 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1198 |
|
---|
[704] | 1199 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1200 |
|
---|
| 1201 | /////////////////
|
---|
[704] | 1202 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1203 |
|
---|
[704] | 1204 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1205 | {
|
---|
[704] | 1206 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1207 |
|
---|
[704] | 1208 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1209 |
|
---|
[704] | 1210 | // remove from vector
|
---|
| 1211 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1212 | neighborhood.pop_back();
|
---|
[705] | 1213 |
|
---|
[704] | 1214 | if (!bestViewCell || !root)
|
---|
[1545] | 1215 | cout << "warning!!" << endl;
|
---|
[705] | 1216 |
|
---|
[704] | 1217 | // create new root of the hierarchy
|
---|
| 1218 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1219 | }
|
---|
| 1220 |
|
---|
[704] | 1221 | return root;
|
---|
[703] | 1222 | }
|
---|
| 1223 |
|
---|
[704] | 1224 |
|
---|
[713] | 1225 | struct SortableViewCellEntry {
|
---|
| 1226 |
|
---|
[1174] | 1227 | SortableViewCellEntry() {}
|
---|
| 1228 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1229 |
|
---|
[1174] | 1230 | float mValue;
|
---|
| 1231 | ViewCell *mViewCell;
|
---|
| 1232 |
|
---|
| 1233 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1234 | return a.mValue < b.mValue;
|
---|
| 1235 | }
|
---|
[713] | 1236 | };
|
---|
| 1237 |
|
---|
[1174] | 1238 |
|
---|
| 1239 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1240 | const ViewCellContainer &viewCells)
|
---|
[713] | 1241 | {
|
---|
| 1242 |
|
---|
| 1243 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1244 | int i, j;
|
---|
| 1245 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1246 | if (viewCells[i] != currentViewCell)
|
---|
| 1247 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1248 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1249 | viewCells[i]);
|
---|
| 1250 | }
|
---|
| 1251 | neighborhood.resize(j);
|
---|
| 1252 |
|
---|
| 1253 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1254 |
|
---|
| 1255 | ViewCell *root = currentViewCell;
|
---|
| 1256 |
|
---|
| 1257 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1258 |
|
---|
| 1259 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1260 | //-- use priority queue to merge leaf pairs
|
---|
| 1261 |
|
---|
| 1262 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1263 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1264 | {
|
---|
[713] | 1265 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1266 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1267 | // create new root of the hierarchy
|
---|
| 1268 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1269 | // set negative cost so that this view cell gets deleted
|
---|
| 1270 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1271 | }
|
---|
[713] | 1272 |
|
---|
| 1273 | return root;
|
---|
| 1274 | }
|
---|
| 1275 |
|
---|
| 1276 | void
|
---|
| 1277 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1278 | ) const
|
---|
| 1279 | {
|
---|
[1586] | 1280 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1281 | {
|
---|
| 1282 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1283 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1284 |
|
---|
| 1285 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1286 | DeleteLocalMergeTree(*it);
|
---|
| 1287 |
|
---|
| 1288 | vci->mChildren.clear();
|
---|
| 1289 |
|
---|
| 1290 | delete vci;
|
---|
[713] | 1291 | }
|
---|
| 1292 | }
|
---|
| 1293 |
|
---|
[1021] | 1294 |
|
---|
[564] | 1295 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1296 | int minPvsSize,
|
---|
[562] | 1297 | int maxPvsSize) const
|
---|
[547] | 1298 | {
|
---|
[569] | 1299 |
|
---|
[1707] | 1300 | if ((vc->GetPvs().EvalPvsCost() > maxPvsSize) ||
|
---|
| 1301 | (vc->GetPvs().EvalPvsCost() < minPvsSize))
|
---|
[564] | 1302 | {
|
---|
[710] | 1303 | return false;
|
---|
[561] | 1304 | }
|
---|
[570] | 1305 |
|
---|
[710] | 1306 | return true;
|
---|
[547] | 1307 | }
|
---|
| 1308 |
|
---|
| 1309 |
|
---|
[710] | 1310 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1311 | ViewCellContainer &viewCells) const
|
---|
| 1312 | {
|
---|
| 1313 | return 0;
|
---|
| 1314 | };
|
---|
| 1315 |
|
---|
[1021] | 1316 |
|
---|
[697] | 1317 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1318 | const float width) const
|
---|
| 1319 | {
|
---|
[746] | 1320 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1321 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1322 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1323 |
|
---|
| 1324 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1325 | }
|
---|
| 1326 |
|
---|
| 1327 |
|
---|
[904] | 1328 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1329 | PrVs &prvs,
|
---|
| 1330 | const float filterWidth)
|
---|
[697] | 1331 | {
|
---|
[1594] | 1332 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1333 |
|
---|
[1594] | 1334 | if (mMaxFilterSize < 1) {
|
---|
| 1335 | prvs.mViewCell = currentViewCell;
|
---|
| 1336 | return;
|
---|
| 1337 | }
|
---|
| 1338 |
|
---|
| 1339 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1340 |
|
---|
| 1341 | if (currentViewCell)
|
---|
[1545] | 1342 | {
|
---|
[1594] | 1343 | ViewCellContainer viewCells;
|
---|
| 1344 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1345 |
|
---|
| 1346 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1347 | prvs.mViewCell = root;
|
---|
| 1348 |
|
---|
[1545] | 1349 | }
|
---|
[1594] | 1350 | else
|
---|
[1545] | 1351 | {
|
---|
[1594] | 1352 | prvs.mViewCell = NULL;
|
---|
| 1353 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1354 | }
|
---|
[697] | 1355 | }
|
---|
| 1356 |
|
---|
| 1357 |
|
---|
[581] | 1358 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1359 | {
|
---|
[1002] | 1360 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1361 | }
|
---|
| 1362 |
|
---|
| 1363 |
|
---|
[564] | 1364 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1365 | int minPvs,
|
---|
[562] | 1366 | int maxPvs) const
|
---|
| 1367 | {
|
---|
| 1368 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1369 | }
|
---|
| 1370 |
|
---|
[577] | 1371 |
|
---|
[569] | 1372 | void
|
---|
| 1373 | ViewCellsManager::SetValidity(
|
---|
[570] | 1374 | int minPvsSize,
|
---|
[569] | 1375 | int maxPvsSize) const
|
---|
| 1376 | {
|
---|
[991] | 1377 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1378 |
|
---|
[991] | 1379 |
|
---|
| 1380 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1381 | {
|
---|
| 1382 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1383 | }
|
---|
[569] | 1384 | }
|
---|
[562] | 1385 |
|
---|
[569] | 1386 | void
|
---|
| 1387 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1388 | const float minValid,
|
---|
| 1389 | const float maxValid
|
---|
| 1390 | )
|
---|
| 1391 | {
|
---|
[1761] | 1392 | ObjectPvs dummyPvs;
|
---|
| 1393 | // update pvs sizes
|
---|
| 1394 | for (int i = 0; i < (int)mViewCells.size(); ++ i) {
|
---|
| 1395 | UpdatePvsForEvaluation(mViewCells[i], dummyPvs);
|
---|
| 1396 | }
|
---|
| 1397 |
|
---|
| 1398 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 1399 |
|
---|
| 1400 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1401 | int end = (int)(mViewCells.size() * maxValid);
|
---|
| 1402 |
|
---|
| 1403 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1404 | {
|
---|
[1761] | 1405 | // cout<<"pvs:"<<mViewCells[i]->GetCachedPvsCost()<<endl;
|
---|
| 1406 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
[997] | 1407 | }
|
---|
[569] | 1408 | }
|
---|
| 1409 |
|
---|
[1148] | 1410 |
|
---|
[991] | 1411 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1412 | {
|
---|
[991] | 1413 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1414 | int valid = 0;
|
---|
| 1415 |
|
---|
| 1416 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1417 | {
|
---|
| 1418 | if ((*it)->GetValid())
|
---|
| 1419 | ++ valid;
|
---|
| 1420 | }
|
---|
| 1421 |
|
---|
| 1422 | return valid;
|
---|
[569] | 1423 | }
|
---|
| 1424 |
|
---|
[577] | 1425 |
|
---|
[1545] | 1426 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1427 | const bool extrudeBaseTriangles)
|
---|
[440] | 1428 | {
|
---|
[1545] | 1429 | /// we use predefined view cells from now on
|
---|
| 1430 | mUsePredefinedViewCells = true;
|
---|
[440] | 1431 | X3dParser parser;
|
---|
[1545] | 1432 |
|
---|
| 1433 | if (extrudeBaseTriangles)
|
---|
| 1434 | {
|
---|
| 1435 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1436 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1437 |
|
---|
| 1438 | if (!success)
|
---|
| 1439 | return false;
|
---|
[1545] | 1440 | }
|
---|
| 1441 | else
|
---|
| 1442 | {
|
---|
| 1443 | // hack: use standard mesh loading
|
---|
| 1444 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1445 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1446 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1447 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1448 |
|
---|
| 1449 | if (!success)
|
---|
[1545] | 1450 | {
|
---|
[1563] | 1451 | DEL_PTR(root);
|
---|
| 1452 | return false;
|
---|
| 1453 | }
|
---|
| 1454 |
|
---|
| 1455 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1456 |
|
---|
| 1457 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1458 | {
|
---|
| 1459 | Mesh *mesh;
|
---|
| 1460 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1461 | {
|
---|
[1563] | 1462 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1463 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1464 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1465 | }
|
---|
[1563] | 1466 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1467 | {
|
---|
| 1468 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1469 | mesh = mit->GetMesh();
|
---|
| 1470 | }
|
---|
| 1471 | mesh->ComputeBoundingBox();
|
---|
| 1472 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1473 | }
|
---|
[1563] | 1474 |
|
---|
[1545] | 1475 | DEL_PTR(root);
|
---|
| 1476 | }
|
---|
[503] | 1477 |
|
---|
[1563] | 1478 | // set view space box to bounding box of the view cells
|
---|
| 1479 | AxisAlignedBox3 bbox;
|
---|
| 1480 | bbox.Initialize();
|
---|
| 1481 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1482 |
|
---|
| 1483 | for (; it != it_end; ++ it)
|
---|
[1545] | 1484 | {
|
---|
[1563] | 1485 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1486 | }
|
---|
[503] | 1487 |
|
---|
[1563] | 1488 | SetViewSpaceBox(bbox);
|
---|
| 1489 | cout << "view space box: " << bbox << endl;
|
---|
| 1490 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1491 |
|
---|
| 1492 | return true;
|
---|
[440] | 1493 | }
|
---|
| 1494 |
|
---|
[485] | 1495 |
|
---|
[487] | 1496 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1497 | {
|
---|
[542] | 1498 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1499 | return true;
|
---|
| 1500 | }
|
---|
| 1501 |
|
---|
| 1502 |
|
---|
[557] | 1503 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1504 | {
|
---|
[610] | 1505 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1506 | }
|
---|
| 1507 |
|
---|
| 1508 |
|
---|
[490] | 1509 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1510 | {
|
---|
[1444] | 1511 | if (!ViewCellsConstructed())
|
---|
| 1512 | {
|
---|
| 1513 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1514 | }
|
---|
| 1515 | else
|
---|
| 1516 | {
|
---|
| 1517 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1518 | return false;
|
---|
[837] | 1519 |
|
---|
[1444] | 1520 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1521 |
|
---|
| 1522 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1523 | return false;
|
---|
| 1524 | }
|
---|
| 1525 |
|
---|
| 1526 | return true;
|
---|
[490] | 1527 | }
|
---|
| 1528 |
|
---|
[501] | 1529 |
|
---|
[1444] | 1530 | float ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1531 | const bool addRays,
|
---|
| 1532 | const bool storeViewCells)
|
---|
[440] | 1533 | {
|
---|
[1444] | 1534 | // view cells not yet constructed
|
---|
| 1535 | if (!ViewCellsConstructed())
|
---|
| 1536 | return 0.0f;
|
---|
| 1537 |
|
---|
| 1538 | float sum = 0.0f;
|
---|
| 1539 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1540 |
|
---|
| 1541 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1542 | {
|
---|
| 1543 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1544 | }
|
---|
[503] | 1545 |
|
---|
[1444] | 1546 | return sum;
|
---|
[440] | 1547 | }
|
---|
| 1548 |
|
---|
[485] | 1549 |
|
---|
[479] | 1550 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1551 | {
|
---|
[660] | 1552 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1553 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1554 |
|
---|
| 1555 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1556 | {
|
---|
[660] | 1557 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1558 | }
|
---|
[479] | 1559 | }
|
---|
| 1560 |
|
---|
[485] | 1561 |
|
---|
[580] | 1562 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1563 | float &expectedRenderCost,
|
---|
[580] | 1564 | float &deviation,
|
---|
| 1565 | float &variance,
|
---|
[1709] | 1566 | float &totalCost,
|
---|
[580] | 1567 | float &avgRenderCost)
|
---|
[579] | 1568 | {
|
---|
[1444] | 1569 | ////////////
|
---|
| 1570 | //-- compute expected value
|
---|
[579] | 1571 |
|
---|
| 1572 | totalRenderCost = 0;
|
---|
[1709] | 1573 | totalCost = 0;
|
---|
[579] | 1574 |
|
---|
[1444] | 1575 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1576 |
|
---|
[579] | 1577 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1578 | {
|
---|
| 1579 | ViewCell *vc = *it;
|
---|
[1707] | 1580 | totalRenderCost += vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[1709] | 1581 | totalCost += (int)vc->GetPvs().EvalPvsCost();
|
---|
[579] | 1582 | }
|
---|
| 1583 |
|
---|
[580] | 1584 | // normalize with view space box
|
---|
| 1585 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1586 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[1709] | 1587 | avgRenderCost = totalCost / (float)mViewCells.size();
|
---|
[579] | 1588 |
|
---|
| 1589 |
|
---|
[1444] | 1590 | ///////////
|
---|
[580] | 1591 | //-- compute standard defiation
|
---|
[1444] | 1592 |
|
---|
[579] | 1593 | variance = 0;
|
---|
[580] | 1594 | deviation = 0;
|
---|
[579] | 1595 |
|
---|
| 1596 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1597 | {
|
---|
| 1598 | ViewCell *vc = *it;
|
---|
| 1599 |
|
---|
[1707] | 1600 | float renderCost = vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[580] | 1601 | float dev;
|
---|
[579] | 1602 |
|
---|
[580] | 1603 | if (1)
|
---|
[1707] | 1604 | dev = fabs(avgRenderCost - (float)vc->GetPvs().EvalPvsCost());
|
---|
[580] | 1605 | else
|
---|
| 1606 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1607 |
|
---|
[580] | 1608 | deviation += dev;
|
---|
| 1609 | variance += dev * dev;
|
---|
[579] | 1610 | }
|
---|
[580] | 1611 |
|
---|
[579] | 1612 | variance /= (float)mViewCells.size();
|
---|
[580] | 1613 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1614 | }
|
---|
| 1615 |
|
---|
| 1616 |
|
---|
[478] | 1617 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1618 | {
|
---|
| 1619 | return viewCell->GetArea();
|
---|
| 1620 | }
|
---|
| 1621 |
|
---|
| 1622 |
|
---|
| 1623 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1624 | {
|
---|
| 1625 | return viewCell->GetVolume();
|
---|
| 1626 | }
|
---|
| 1627 |
|
---|
[485] | 1628 |
|
---|
[503] | 1629 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1630 | const float height) const
|
---|
| 1631 | {
|
---|
| 1632 | // one mesh per view cell
|
---|
[1001] | 1633 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1634 |
|
---|
[1545] | 1635 | ////////////
|
---|
[440] | 1636 | //-- construct prism
|
---|
| 1637 |
|
---|
[503] | 1638 | // bottom
|
---|
[440] | 1639 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1640 | // top
|
---|
| 1641 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1642 | // sides
|
---|
| 1643 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1644 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1645 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1646 |
|
---|
[1545] | 1647 |
|
---|
| 1648 | /////////////
|
---|
| 1649 | //-- extrude new vertices for top of prism
|
---|
| 1650 |
|
---|
[1586] | 1651 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1652 | Triangle3 topTri;
|
---|
[440] | 1653 |
|
---|
| 1654 | // add base vertices and calculate top vertices
|
---|
| 1655 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1656 | {
|
---|
[440] | 1657 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1658 | }
|
---|
[503] | 1659 |
|
---|
| 1660 | // add top vertices
|
---|
[440] | 1661 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1662 | {
|
---|
[440] | 1663 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1664 | }
|
---|
[503] | 1665 |
|
---|
[1545] | 1666 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1667 | mesh->ComputeBoundingBox();
|
---|
| 1668 |
|
---|
[440] | 1669 | return GenerateViewCell(mesh);
|
---|
| 1670 | }
|
---|
| 1671 |
|
---|
[485] | 1672 |
|
---|
[551] | 1673 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1674 | {
|
---|
| 1675 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1676 |
|
---|
[1768] | 1677 | // volume and area of the view cells are recomputed
|
---|
| 1678 | // a view cell mesh is created
|
---|
[551] | 1679 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1680 | {
|
---|
| 1681 | Finalize(*it, createMesh);
|
---|
| 1682 | }
|
---|
[555] | 1683 |
|
---|
[1584] | 1684 | mViewCellsTree->AssignRandomColors();
|
---|
| 1685 |
|
---|
[555] | 1686 | mTotalAreaValid = false;
|
---|
[551] | 1687 | }
|
---|
| 1688 |
|
---|
| 1689 |
|
---|
| 1690 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1691 | {
|
---|
| 1692 | // implemented in subclasses
|
---|
| 1693 | }
|
---|
| 1694 |
|
---|
[1001] | 1695 |
|
---|
[1168] | 1696 | /** fast way of merging 2 view cells.
|
---|
| 1697 | */
|
---|
[582] | 1698 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1699 | {
|
---|
[580] | 1700 | // generate parent view cell
|
---|
[752] | 1701 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1702 |
|
---|
[752] | 1703 | vc->GetPvs().Clear();
|
---|
[1740] | 1704 | ObjectPvs::Merge(vc->GetPvs(), left->GetPvs(), right->GetPvs());
|
---|
[752] | 1705 |
|
---|
[710] | 1706 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1707 | vc->mChildren.push_back(left);
|
---|
| 1708 | vc->mChildren.push_back(right);
|
---|
| 1709 |
|
---|
[752] | 1710 | // update pvs size
|
---|
[1707] | 1711 | UpdateScalarPvsSize(vc, vc->GetPvs().EvalPvsCost(), vc->GetPvs().GetSize());
|
---|
[752] | 1712 |
|
---|
[440] | 1713 | return vc;
|
---|
| 1714 | }
|
---|
| 1715 |
|
---|
[485] | 1716 |
|
---|
[582] | 1717 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1718 | {
|
---|
[752] | 1719 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1720 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1721 |
|
---|
| 1722 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1723 | {
|
---|
[1740] | 1724 | vc->GetPvs().MergeInPlace((*it)->GetPvs());
|
---|
| 1725 |
|
---|
[710] | 1726 | vc->mChildren.push_back(*it);
|
---|
[582] | 1727 | }
|
---|
| 1728 |
|
---|
| 1729 | return vc;
|
---|
| 1730 | }
|
---|
| 1731 |
|
---|
| 1732 |
|
---|
[480] | 1733 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1734 | {
|
---|
| 1735 | mRenderer = renderer;
|
---|
| 1736 | }
|
---|
[441] | 1737 |
|
---|
[485] | 1738 |
|
---|
[580] | 1739 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1740 | {
|
---|
[580] | 1741 | return mViewCellsTree;
|
---|
[440] | 1742 | }
|
---|
| 1743 |
|
---|
| 1744 |
|
---|
| 1745 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1746 | {
|
---|
[444] | 1747 | mVisualizationSamples = visSamples;
|
---|
[440] | 1748 | }
|
---|
| 1749 |
|
---|
[485] | 1750 |
|
---|
[440] | 1751 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1752 | {
|
---|
| 1753 | mConstructionSamples = constructionSamples;
|
---|
| 1754 | }
|
---|
| 1755 |
|
---|
[485] | 1756 |
|
---|
[574] | 1757 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1758 | {
|
---|
| 1759 | mInitialSamples = initialSamples;
|
---|
| 1760 | }
|
---|
| 1761 |
|
---|
| 1762 |
|
---|
[440] | 1763 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1764 | {
|
---|
| 1765 | mPostProcessSamples = postProcessSamples;
|
---|
| 1766 | }
|
---|
| 1767 |
|
---|
[485] | 1768 |
|
---|
[440] | 1769 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1770 | {
|
---|
| 1771 | return mVisualizationSamples;
|
---|
| 1772 | }
|
---|
| 1773 |
|
---|
[485] | 1774 |
|
---|
[440] | 1775 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1776 | {
|
---|
| 1777 | return mConstructionSamples;
|
---|
| 1778 | }
|
---|
| 1779 |
|
---|
[485] | 1780 |
|
---|
[440] | 1781 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1782 | {
|
---|
| 1783 | return mPostProcessSamples;
|
---|
| 1784 | }
|
---|
| 1785 |
|
---|
[485] | 1786 |
|
---|
[719] | 1787 | void ViewCellsManager::UpdatePvs()
|
---|
| 1788 | {
|
---|
[1737] | 1789 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
| 1790 | return;
|
---|
| 1791 |
|
---|
| 1792 | mViewCellPvsIsUpdated = true;
|
---|
| 1793 |
|
---|
| 1794 | ViewCellContainer leaves;
|
---|
| 1795 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1796 |
|
---|
| 1797 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1798 |
|
---|
| 1799 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[719] | 1800 | {
|
---|
[1737] | 1801 | mViewCellsTree->PropagatePvs(*it);
|
---|
[719] | 1802 | }
|
---|
| 1803 | }
|
---|
| 1804 |
|
---|
| 1805 |
|
---|
[485] | 1806 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1807 | {
|
---|
[1737] | 1808 | // update pvs of view cells tree if necessary
|
---|
| 1809 | UpdatePvs();
|
---|
| 1810 |
|
---|
| 1811 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1812 |
|
---|
| 1813 | stat.viewcells = 0;
|
---|
| 1814 | stat.minPvs = 100000000;
|
---|
| 1815 | stat.maxPvs = 0;
|
---|
| 1816 | stat.avgPvs = 0.0f;
|
---|
| 1817 | stat.avgFilteredPvs = 0.0f;
|
---|
| 1818 | stat.avgFilterContribution = 0.0f;
|
---|
[1761] | 1819 | stat.avgFilterRadius = 0;
|
---|
| 1820 | stat.avgFilterRatio = 0;
|
---|
[1737] | 1821 |
|
---|
| 1822 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1823 | {
|
---|
[1737] | 1824 | ViewCell *viewcell = *it;
|
---|
[1761] | 1825 | if (viewcell->GetValid()) {
|
---|
| 1826 | const float pvsCost = mViewCellsTree->GetPvsCost(viewcell);
|
---|
| 1827 |
|
---|
| 1828 | if (pvsCost < stat.minPvs)
|
---|
| 1829 | stat.minPvs = pvsCost;
|
---|
| 1830 | if (pvsCost > stat.maxPvs)
|
---|
| 1831 | stat.maxPvs = pvsCost;
|
---|
| 1832 |
|
---|
| 1833 | stat.avgPvs += pvsCost;
|
---|
[1785] | 1834 |
|
---|
| 1835 | bool evaluateFilter;
|
---|
| 1836 | Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluateFilter", evaluateFilter);
|
---|
[1761] | 1837 |
|
---|
| 1838 |
|
---|
| 1839 | if (evaluateFilter) {
|
---|
| 1840 | ObjectPvs filteredPvs = viewcell->GetPvs();
|
---|
[1824] | 1841 | PvsFilterStatistics fstat = ApplyFilter2(viewcell,
|
---|
| 1842 | false,
|
---|
| 1843 | 2.0f,
|
---|
| 1844 | filteredPvs);
|
---|
[1761] | 1845 |
|
---|
| 1846 | float filteredCost = filteredPvs.EvalPvsCost();
|
---|
| 1847 | stat.avgFilteredPvs += filteredCost;
|
---|
| 1848 | stat.avgFilterContribution += filteredCost - pvsCost;
|
---|
[1121] | 1849 |
|
---|
[1761] | 1850 | stat.avgFilterRadius += fstat.mAvgFilterRadius;
|
---|
[1771] | 1851 | int sum = fstat.mGlobalFilterCount + fstat.mLocalFilterCount;
|
---|
| 1852 | if (sum) {
|
---|
| 1853 | stat.avgFilterRatio += fstat.mLocalFilterCount /
|
---|
| 1854 | (float) sum;
|
---|
| 1855 | }
|
---|
[1761] | 1856 |
|
---|
| 1857 |
|
---|
| 1858 | } else {
|
---|
| 1859 | stat.avgFilteredPvs += pvsCost;
|
---|
| 1860 | stat.avgFilterContribution += 0;
|
---|
| 1861 | }
|
---|
| 1862 |
|
---|
| 1863 | ++ stat.viewcells;
|
---|
[1737] | 1864 | }
|
---|
[719] | 1865 | }
|
---|
[1737] | 1866 |
|
---|
| 1867 | if (stat.viewcells) {
|
---|
| 1868 | stat.avgPvs/=stat.viewcells;
|
---|
| 1869 | stat.avgFilteredPvs/=stat.viewcells;
|
---|
| 1870 | stat.avgFilterContribution/=stat.viewcells;
|
---|
[1761] | 1871 | stat.avgFilterRadius/=stat.viewcells;
|
---|
| 1872 | stat.avgFilterRatio/=stat.viewcells;
|
---|
[1737] | 1873 | }
|
---|
[467] | 1874 | }
|
---|
| 1875 |
|
---|
[485] | 1876 |
|
---|
[480] | 1877 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1878 | {
|
---|
| 1879 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1880 | PvsStatistics pvsStat;
|
---|
| 1881 | GetPvsStatistics(pvsStat);
|
---|
| 1882 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
[1737] | 1883 | s<<"#AVG_FILTERED_PVS\n"<<pvsStat.avgFilteredPvs<<endl;
|
---|
| 1884 | s<<"#AVG_FILTER_CONTRIBUTION\n"<<pvsStat.avgFilterContribution<<endl;
|
---|
[1761] | 1885 | s<<"#AVG_FILTER_RADIUS\n"<<pvsStat.avgFilterRadius<<endl;
|
---|
| 1886 | s<<"#AVG_FILTER_RATIO\n"<<pvsStat.avgFilterRatio<<endl;
|
---|
[467] | 1887 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1888 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1889 | }
|
---|
| 1890 |
|
---|
[485] | 1891 |
|
---|
[532] | 1892 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1893 | {
|
---|
| 1894 | return 0;
|
---|
| 1895 | }
|
---|
| 1896 |
|
---|
[547] | 1897 |
|
---|
[468] | 1898 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1899 | {
|
---|
| 1900 | return mViewCells;
|
---|
| 1901 | }
|
---|
| 1902 |
|
---|
[485] | 1903 |
|
---|
[487] | 1904 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1905 | {
|
---|
[542] | 1906 | mViewSpaceBox = box;
|
---|
[1074] | 1907 |
|
---|
[1027] | 1908 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1909 | CreateClipPlane();
|
---|
[1027] | 1910 | // the total area of the view space has changed
|
---|
[577] | 1911 | mTotalAreaValid = false;
|
---|
[487] | 1912 | }
|
---|
| 1913 |
|
---|
| 1914 |
|
---|
[660] | 1915 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1916 | {
|
---|
| 1917 | int axis = 0;
|
---|
[667] | 1918 | float pos;
|
---|
[1418] | 1919 | bool orientation;
|
---|
| 1920 | Vector3 absPos;
|
---|
[591] | 1921 |
|
---|
[1004] | 1922 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1923 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1924 |
|
---|
[1418] | 1925 | if (axis < 0)
|
---|
| 1926 | {
|
---|
| 1927 | axis = -axis;
|
---|
| 1928 | orientation = false;
|
---|
| 1929 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 1930 | }
|
---|
| 1931 | else
|
---|
| 1932 | {
|
---|
| 1933 | orientation = true;
|
---|
| 1934 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1935 | }
|
---|
| 1936 |
|
---|
[1416] | 1937 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 1938 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 1939 | }
|
---|
| 1940 |
|
---|
| 1941 |
|
---|
[519] | 1942 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1943 | {
|
---|
[542] | 1944 | return mViewSpaceBox;
|
---|
[519] | 1945 | }
|
---|
| 1946 |
|
---|
| 1947 |
|
---|
[480] | 1948 | void ViewCellsManager::ResetViewCells()
|
---|
| 1949 | {
|
---|
[720] | 1950 | // recollect view cells
|
---|
[480] | 1951 | mViewCells.clear();
|
---|
| 1952 | CollectViewCells();
|
---|
[590] | 1953 |
|
---|
[720] | 1954 | // stats are computed once more
|
---|
[480] | 1955 | EvaluateViewCellsStats();
|
---|
[590] | 1956 |
|
---|
[520] | 1957 | // has to be recomputed
|
---|
[480] | 1958 | mTotalAreaValid = false;
|
---|
| 1959 | }
|
---|
| 1960 |
|
---|
[485] | 1961 |
|
---|
[547] | 1962 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1963 | {
|
---|
| 1964 | return mMaxPvsSize;
|
---|
| 1965 | }
|
---|
| 1966 |
|
---|
[564] | 1967 |
|
---|
[562] | 1968 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1969 | {
|
---|
| 1970 | return mMinPvsSize;
|
---|
| 1971 | }
|
---|
| 1972 |
|
---|
| 1973 |
|
---|
| 1974 |
|
---|
[561] | 1975 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1976 | {
|
---|
| 1977 | return mMaxPvsRatio;
|
---|
| 1978 | }
|
---|
| 1979 |
|
---|
[1594] | 1980 |
|
---|
[1159] | 1981 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
[1824] | 1982 | const bool addRays,
|
---|
| 1983 | const bool storeViewCells)
|
---|
[1790] | 1984 | {
|
---|
[570] | 1985 | ViewCellContainer viewcells;
|
---|
[564] | 1986 |
|
---|
[570] | 1987 | ray.mPvsContribution = 0;
|
---|
| 1988 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1989 |
|
---|
[570] | 1990 | static Ray hray;
|
---|
[564] | 1991 | hray.Init(ray);
|
---|
| 1992 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1993 | //Ray hray(ray);
|
---|
| 1994 |
|
---|
| 1995 | float tmin = 0, tmax = 1.0;
|
---|
| 1996 |
|
---|
| 1997 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1998 | return 0;
|
---|
[564] | 1999 |
|
---|
| 2000 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 2001 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 2002 |
|
---|
[1291] | 2003 | ViewCell::NewMail();
|
---|
| 2004 |
|
---|
[1785] | 2005 | // if (ray.mPdf!=1.0f)
|
---|
| 2006 | // cout<<ray.mPdf<<" ";
|
---|
| 2007 |
|
---|
| 2008 |
|
---|
[1006] | 2009 | // traverse the view space subdivision
|
---|
[564] | 2010 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 2011 |
|
---|
[574] | 2012 | if (storeViewCells)
|
---|
[1155] | 2013 | { // copy viewcells memory efficiently
|
---|
[570] | 2014 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 2015 | ray.mViewCells = viewcells;
|
---|
| 2016 | }
|
---|
[1594] | 2017 |
|
---|
[1761] | 2018 | Intersectable *obj = GetIntersectable(ray, true);
|
---|
[1764] | 2019 |
|
---|
[570] | 2020 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[1594] | 2021 |
|
---|
[664] | 2022 | for (; it != viewcells.end(); ++ it)
|
---|
| 2023 | {
|
---|
| 2024 | ViewCell *viewcell = *it;
|
---|
[1764] | 2025 | // tests if view cell is in valid view space
|
---|
| 2026 | if (viewcell->GetValid())
|
---|
[664] | 2027 | {
|
---|
| 2028 | float contribution;
|
---|
[1291] | 2029 |
|
---|
| 2030 | if (ray.mTerminationObject)
|
---|
[1649] | 2031 | {
|
---|
| 2032 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 2033 | ray.mPdf,
|
---|
| 2034 | contribution))
|
---|
[1582] | 2035 | {
|
---|
[1649] | 2036 | ++ ray.mPvsContribution;
|
---|
| 2037 | ray.mRelativePvsContribution += contribution;
|
---|
[1824] | 2038 | // $$ test of different contribution measure
|
---|
| 2039 | // ray.mRelativePvsContribution += 1.0f/(viewcell->GetPvs().GetSize() + 10.0f);
|
---|
| 2040 |
|
---|
[1582] | 2041 | }
|
---|
[664] | 2042 | }
|
---|
[1291] | 2043 |
|
---|
| 2044 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1582] | 2045 |
|
---|
[840] | 2046 | // for directional sampling it is important to count only contributions
|
---|
[718] | 2047 | // made in one direction!!!
|
---|
| 2048 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1582] | 2049 |
|
---|
[666] | 2050 | if (ray.mOriginObject &&
|
---|
| 2051 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
[1824] | 2052 | ray.mPdf,
|
---|
| 2053 | contribution))
|
---|
| 2054 | {
|
---|
| 2055 | ++ ray.mPvsContribution;
|
---|
| 2056 | ray.mRelativePvsContribution += contribution;
|
---|
| 2057 | }
|
---|
[718] | 2058 | #endif
|
---|
[664] | 2059 | }
|
---|
[569] | 2060 | }
|
---|
[564] | 2061 |
|
---|
[1528] | 2062 | // if true, the sampled entities are stored in the pvs
|
---|
[664] | 2063 | if (addRays)
|
---|
| 2064 | {
|
---|
| 2065 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 2066 | {
|
---|
| 2067 | ViewCell *viewcell = *it;
|
---|
| 2068 |
|
---|
[706] | 2069 | if (viewcell->GetValid())
|
---|
[664] | 2070 | {
|
---|
[1486] | 2071 | // if view point is valid, add new object to the pvs
|
---|
[1155] | 2072 | if (ray.mTerminationObject)
|
---|
[1764] | 2073 | {
|
---|
[1594] | 2074 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[1159] | 2075 | }
|
---|
[1166] | 2076 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 2077 | if (ray.mOriginObject)
|
---|
[1764] | 2078 | {
|
---|
[666] | 2079 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 2080 | }
|
---|
[718] | 2081 | #endif
|
---|
[664] | 2082 | }
|
---|
| 2083 | }
|
---|
[563] | 2084 | }
|
---|
[570] | 2085 |
|
---|
[1715] | 2086 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 2087 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[468] | 2088 | }
|
---|
| 2089 |
|
---|
| 2090 |
|
---|
[469] | 2091 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 2092 | const int maxSize,
|
---|
[503] | 2093 | VssRayContainer &usedRays,
|
---|
[485] | 2094 | VssRayContainer *savedRays) const
|
---|
[469] | 2095 | {
|
---|
[485] | 2096 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 2097 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 2098 |
|
---|
[485] | 2099 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 2100 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 2101 | {
|
---|
[473] | 2102 | if (Random(1.0f) < prop)
|
---|
[485] | 2103 | usedRays.push_back(*it);
|
---|
| 2104 | else if (savedRays)
|
---|
| 2105 | savedRays->push_back(*it);
|
---|
[469] | 2106 | }
|
---|
| 2107 | }
|
---|
| 2108 |
|
---|
[477] | 2109 |
|
---|
[728] | 2110 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 2111 | {
|
---|
[1709] | 2112 | return (float)mViewCellsTree->GetPvsCost(viewCell);
|
---|
[605] | 2113 | }
|
---|
| 2114 |
|
---|
| 2115 |
|
---|
[477] | 2116 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 2117 | {
|
---|
| 2118 | // if already computed
|
---|
| 2119 | if (mTotalAreaValid)
|
---|
[728] | 2120 | {
|
---|
[470] | 2121 | return mTotalArea;
|
---|
[728] | 2122 | }
|
---|
[470] | 2123 |
|
---|
| 2124 | mTotalArea = 0;
|
---|
| 2125 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2126 |
|
---|
| 2127 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 2128 | {
|
---|
| 2129 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2130 | mTotalArea += GetArea(*it);
|
---|
[480] | 2131 | }
|
---|
| 2132 |
|
---|
[470] | 2133 | mTotalAreaValid = true;
|
---|
| 2134 |
|
---|
| 2135 | return mTotalArea;
|
---|
| 2136 | }
|
---|
| 2137 |
|
---|
[482] | 2138 |
|
---|
[475] | 2139 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2140 | {
|
---|
[660] | 2141 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2142 | }
|
---|
| 2143 |
|
---|
[477] | 2144 |
|
---|
[508] | 2145 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2146 | {
|
---|
[651] | 2147 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2148 | {
|
---|
[651] | 2149 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2150 | }
|
---|
| 2151 | else // no view cells tree, handle view cells "myself"
|
---|
| 2152 | {
|
---|
[1551] | 2153 | int i = 0;
|
---|
| 2154 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2155 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2156 | {
|
---|
[1557] | 2157 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2158 | {
|
---|
[1551] | 2159 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2160 | }
|
---|
[1284] | 2161 | }
|
---|
| 2162 | }
|
---|
[508] | 2163 | }
|
---|
| 2164 |
|
---|
[1416] | 2165 |
|
---|
| 2166 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2167 | const AxisAlignedBox3 *sceneBox,
|
---|
[1760] | 2168 | const bool colorCode,
|
---|
| 2169 | const AxisAlignedPlane *clipPlane
|
---|
[1416] | 2170 | ) const
|
---|
[508] | 2171 | {
|
---|
[482] | 2172 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1763] | 2173 |
|
---|
[482] | 2174 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[1763] | 2175 | {
|
---|
[574] | 2176 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
[1763] | 2177 | {
|
---|
[1571] | 2178 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2179 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2180 | }
|
---|
[482] | 2181 | }
|
---|
| 2182 | }
|
---|
| 2183 |
|
---|
| 2184 |
|
---|
[517] | 2185 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2186 | {
|
---|
| 2187 | // convert to meshes
|
---|
| 2188 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2189 |
|
---|
| 2190 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2191 | {
|
---|
[517] | 2192 | if (!(*it)->GetMesh())
|
---|
[1001] | 2193 | {
|
---|
[517] | 2194 | CreateMesh(*it);
|
---|
[1001] | 2195 | }
|
---|
[503] | 2196 | }
|
---|
| 2197 | }
|
---|
| 2198 |
|
---|
[508] | 2199 |
|
---|
[944] | 2200 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2201 | const bool exportPvs,
|
---|
| 2202 | const ObjectContainer &objects)
|
---|
[564] | 2203 | {
|
---|
[508] | 2204 | return false;
|
---|
| 2205 | }
|
---|
| 2206 |
|
---|
| 2207 |
|
---|
[610] | 2208 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2209 | {
|
---|
[610] | 2210 | mNumActiveViewCells = n;
|
---|
| 2211 | mViewCells.clear();
|
---|
[1545] | 2212 | // implemented in subclasses
|
---|
[610] | 2213 | CollectViewCells();
|
---|
| 2214 | }
|
---|
[508] | 2215 |
|
---|
| 2216 |
|
---|
[1707] | 2217 | void ViewCellsManager::SetViewCellActive(ViewCell *vc) const
|
---|
| 2218 | {
|
---|
| 2219 | ViewCellContainer leaves;
|
---|
| 2220 | // sets the pointers to the currently active view cells
|
---|
| 2221 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2222 |
|
---|
| 2223 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2224 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2225 | {
|
---|
| 2226 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(vc);
|
---|
| 2227 | }
|
---|
| 2228 | }
|
---|
| 2229 |
|
---|
| 2230 |
|
---|
[660] | 2231 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2232 | {
|
---|
[1707] | 2233 | // collect leaf view cells and set the pointers to
|
---|
| 2234 | // the currently active view cells
|
---|
[660] | 2235 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2236 |
|
---|
[660] | 2237 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2238 | {
|
---|
[1707] | 2239 | SetViewCellActive(*it);
|
---|
[660] | 2240 | }
|
---|
| 2241 | }
|
---|
[508] | 2242 |
|
---|
[840] | 2243 |
|
---|
| 2244 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2245 | {
|
---|
| 2246 | return mMaxFilterSize;
|
---|
| 2247 | }
|
---|
| 2248 |
|
---|
[1001] | 2249 |
|
---|
[840] | 2250 | static const bool USE_ASCII = true;
|
---|
| 2251 |
|
---|
[1001] | 2252 |
|
---|
[840] | 2253 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2254 | const ObjectContainer &objects) const
|
---|
| 2255 | {
|
---|
| 2256 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2257 |
|
---|
| 2258 | if (USE_ASCII)
|
---|
| 2259 | {
|
---|
| 2260 | ofstream boxesOut(filename.c_str());
|
---|
| 2261 | if (!boxesOut.is_open())
|
---|
| 2262 | return false;
|
---|
| 2263 |
|
---|
| 2264 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2265 | {
|
---|
| 2266 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2267 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2268 |
|
---|
| 2269 | boxesOut << mi->GetId() << " "
|
---|
| 2270 | << box.Min().x << " "
|
---|
| 2271 | << box.Min().y << " "
|
---|
| 2272 | << box.Min().z << " "
|
---|
| 2273 | << box.Max().x << " "
|
---|
| 2274 | << box.Max().y << " "
|
---|
| 2275 | << box.Max().z << endl;
|
---|
| 2276 | }
|
---|
| 2277 |
|
---|
| 2278 | boxesOut.close();
|
---|
| 2279 | }
|
---|
| 2280 | else
|
---|
| 2281 | {
|
---|
| 2282 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2283 |
|
---|
| 2284 | if (!boxesOut.is_open())
|
---|
| 2285 | return false;
|
---|
| 2286 |
|
---|
| 2287 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2288 | {
|
---|
| 2289 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2290 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2291 | Vector3 bmin = box.Min();
|
---|
| 2292 | Vector3 bmax = box.Max();
|
---|
[850] | 2293 | int id = mi->GetId();
|
---|
[840] | 2294 |
|
---|
[850] | 2295 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2296 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2297 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2298 | }
|
---|
| 2299 |
|
---|
| 2300 | boxesOut.close();
|
---|
| 2301 | }
|
---|
| 2302 |
|
---|
| 2303 | return true;
|
---|
| 2304 | }
|
---|
| 2305 |
|
---|
| 2306 |
|
---|
[850] | 2307 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2308 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2309 | {
|
---|
[850] | 2310 | Vector3 bmin, bmax;
|
---|
| 2311 | int id;
|
---|
[840] | 2312 |
|
---|
[850] | 2313 | if (USE_ASCII)
|
---|
[840] | 2314 | {
|
---|
[850] | 2315 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2316 |
|
---|
[850] | 2317 | if (!boxesIn.is_open())
|
---|
[840] | 2318 | {
|
---|
[850] | 2319 | cout << "failed to open file " << filename << endl;
|
---|
| 2320 | return false;
|
---|
[840] | 2321 | }
|
---|
[850] | 2322 |
|
---|
| 2323 | string buf;
|
---|
| 2324 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2325 | {
|
---|
[850] | 2326 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2327 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2328 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2329 |
|
---|
| 2330 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2331 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2332 | // HACK: set bounding box to new box
|
---|
| 2333 | //mi->mBox = box;
|
---|
| 2334 |
|
---|
| 2335 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2336 | }
|
---|
| 2337 |
|
---|
[850] | 2338 | boxesIn.close();
|
---|
[840] | 2339 | }
|
---|
[850] | 2340 | else
|
---|
[840] | 2341 | {
|
---|
[850] | 2342 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2343 |
|
---|
[850] | 2344 | if (!boxesIn.is_open())
|
---|
| 2345 | return false;
|
---|
| 2346 |
|
---|
| 2347 | while (1)
|
---|
[840] | 2348 | {
|
---|
[850] | 2349 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2350 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2351 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2352 |
|
---|
| 2353 | if (boxesIn.eof())
|
---|
| 2354 | break;
|
---|
| 2355 |
|
---|
| 2356 |
|
---|
| 2357 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2358 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2359 |
|
---|
| 2360 | // HACK: set bounding box to new box
|
---|
| 2361 | //mi->mBox = box;
|
---|
| 2362 | //boxes.push_back(mi);
|
---|
| 2363 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2364 | }
|
---|
| 2365 |
|
---|
[850] | 2366 | boxesIn.close();
|
---|
[840] | 2367 | }
|
---|
| 2368 |
|
---|
| 2369 | return true;
|
---|
[850] | 2370 | }
|
---|
[840] | 2371 |
|
---|
[931] | 2372 |
|
---|
| 2373 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2374 | {
|
---|
| 2375 | return mFilterWidth;
|
---|
| 2376 | }
|
---|
| 2377 |
|
---|
| 2378 |
|
---|
| 2379 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2380 | {
|
---|
| 2381 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2382 | }
|
---|
| 2383 |
|
---|
| 2384 |
|
---|
[1168] | 2385 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
[1709] | 2386 | const float pvsCost,
|
---|
[1168] | 2387 | const int entriesInPvs) const
|
---|
[1002] | 2388 | {
|
---|
[1709] | 2389 | vc->mPvsCost = pvsCost;
|
---|
[1160] | 2390 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2391 |
|
---|
[1002] | 2392 | vc->mPvsSizeValid = true;
|
---|
| 2393 | }
|
---|
| 2394 |
|
---|
| 2395 |
|
---|
[1021] | 2396 | void
|
---|
| 2397 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2398 | KdTree *kdTree,
|
---|
| 2399 | const float viewSpaceFilterSize,
|
---|
| 2400 | const float spatialFilterSize,
|
---|
| 2401 | ObjectPvs &pvs
|
---|
| 2402 | )
|
---|
| 2403 | {
|
---|
| 2404 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2405 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2406 | // in the pvs
|
---|
| 2407 |
|
---|
| 2408 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2409 | // and compute the pvs union
|
---|
| 2410 |
|
---|
| 2411 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2412 | // Vector3 center = m->mBox.Center();
|
---|
[1679] | 2413 |
|
---|
| 2414 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2415 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2416 | if (!ViewCellsConstructed())
|
---|
| 2417 | return;
|
---|
| 2418 |
|
---|
[1679] | 2419 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
[1021] | 2420 |
|
---|
[1679] | 2421 | const bool usePrVS = false;
|
---|
[1021] | 2422 |
|
---|
[1679] | 2423 | if (!usePrVS) {
|
---|
| 2424 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2425 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2426 |
|
---|
[1679] | 2427 | ViewCellContainer viewCells;
|
---|
| 2428 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2429 |
|
---|
| 2430 | // cout<<"box="<<box<<endl;
|
---|
| 2431 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2432 |
|
---|
[1740] | 2433 | for (; it != it_end; ++ it)
|
---|
| 2434 | {
|
---|
| 2435 | ObjectPvs interPvs;
|
---|
[1679] | 2436 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
[1740] | 2437 | ObjectPvs::Merge(interPvs, pvs, (*it)->GetPvs());
|
---|
| 2438 |
|
---|
| 2439 | pvs = interPvs;
|
---|
[1679] | 2440 | }
|
---|
[1740] | 2441 | } else
|
---|
| 2442 | {
|
---|
[1679] | 2443 | PrVs prvs;
|
---|
| 2444 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2445 |
|
---|
| 2446 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2447 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2448 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2449 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2450 | }
|
---|
[1740] | 2451 | }
|
---|
| 2452 | else
|
---|
| 2453 | {
|
---|
[1679] | 2454 | pvs = viewCell->GetPvs();
|
---|
[1740] | 2455 | }
|
---|
[1679] | 2456 |
|
---|
| 2457 | if (spatialFilterSize >=0.0f)
|
---|
| 2458 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2459 |
|
---|
[1021] | 2460 | }
|
---|
| 2461 |
|
---|
| 2462 |
|
---|
| 2463 |
|
---|
| 2464 | void
|
---|
| 2465 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2466 | const float relViewSpaceFilterSize,
|
---|
| 2467 | const float relSpatialFilterSize
|
---|
| 2468 | )
|
---|
| 2469 | {
|
---|
| 2470 |
|
---|
| 2471 | if (!ViewCellsConstructed())
|
---|
| 2472 | return;
|
---|
| 2473 |
|
---|
[1679] | 2474 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1021] | 2475 |
|
---|
[1679] | 2476 | ObjectPvs *newPvs;
|
---|
| 2477 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
[1021] | 2478 |
|
---|
[1679] | 2479 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2480 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
[1715] | 2481 |
|
---|
[1679] | 2482 | int i;
|
---|
| 2483 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2484 | ApplyFilter(*it,
|
---|
| 2485 | kdTree,
|
---|
| 2486 | viewSpaceFilterSize,
|
---|
| 2487 | spatialFilterSize,
|
---|
| 2488 | newPvs[i]
|
---|
| 2489 | );
|
---|
[1679] | 2490 | }
|
---|
[1715] | 2491 |
|
---|
[1679] | 2492 | // now replace all pvss
|
---|
| 2493 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2494 |
|
---|
| 2495 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2496 | pvs.Clear();
|
---|
| 2497 | pvs = newPvs[i];
|
---|
| 2498 | newPvs[i].Clear();
|
---|
[1679] | 2499 | }
|
---|
[1021] | 2500 |
|
---|
[1679] | 2501 | delete [] newPvs;
|
---|
| 2502 | }
|
---|
[1021] | 2503 |
|
---|
[1679] | 2504 |
|
---|
[1021] | 2505 | void
|
---|
| 2506 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2507 | KdTree *kdTree,
|
---|
| 2508 | const float spatialFilterSize,
|
---|
| 2509 | ObjectPvs &pvs
|
---|
| 2510 | )
|
---|
| 2511 | {
|
---|
[1716] | 2512 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2513 | // extended boxes of visible objects
|
---|
| 2514 | Intersectable::NewMail();
|
---|
[1742] | 2515 |
|
---|
| 2516 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 2517 |
|
---|
| 2518 | while (pit.HasMoreEntries())
|
---|
| 2519 | {
|
---|
| 2520 | ObjectPvsEntry entry = pit.Next();
|
---|
[1716] | 2521 |
|
---|
[1742] | 2522 | Intersectable *object = entry.mObject;
|
---|
[1189] | 2523 | object->Mail();
|
---|
[1742] | 2524 | }
|
---|
[1021] | 2525 |
|
---|
| 2526 | ObjectPvs nPvs;
|
---|
[1189] | 2527 | int nPvsSize = 0;
|
---|
[1742] | 2528 |
|
---|
| 2529 | ObjectPvsIterator pit2 = pvs.GetIterator();
|
---|
[1021] | 2530 |
|
---|
[1742] | 2531 | while (pit2.HasMoreEntries())
|
---|
| 2532 | {
|
---|
| 2533 | // now go through the pvs again
|
---|
| 2534 | ObjectPvsEntry entry = pit2.Next();
|
---|
| 2535 | Intersectable *object = entry.mObject;
|
---|
[1021] | 2536 |
|
---|
[1742] | 2537 | // Vector3 center = object->GetBox().Center();
|
---|
| 2538 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2539 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2540 |
|
---|
| 2541 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2542 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2543 |
|
---|
| 2544 | ObjectContainer objects;
|
---|
| 2545 |
|
---|
| 2546 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2547 | kdTree->CollectObjects(box, objects);
|
---|
| 2548 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2549 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2550 | for (; noi != objects.end(); ++ noi)
|
---|
| 2551 | {
|
---|
| 2552 | Intersectable *o = *noi;
|
---|
[1764] | 2553 |
|
---|
[1742] | 2554 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2555 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2556 | nPvsSize ++;
|
---|
| 2557 | }
|
---|
[1021] | 2558 | }
|
---|
[1740] | 2559 |
|
---|
[1764] | 2560 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
[1740] | 2561 | pvs.MergeInPlace(nPvs);
|
---|
[1021] | 2562 | }
|
---|
| 2563 |
|
---|
| 2564 |
|
---|
[1787] | 2565 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2566 | const ViewCellContainer &viewCells) const
|
---|
[1786] | 2567 | {
|
---|
[1787] | 2568 | MergeViewCellsRecursivly(pvs, viewCells, 0, (int)viewCells.size() - 1);
|
---|
[1786] | 2569 | }
|
---|
| 2570 |
|
---|
[1787] | 2571 |
|
---|
| 2572 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 2573 | const ViewCellContainer &viewCells,
|
---|
| 2574 | const int leftIdx,
|
---|
| 2575 | const int rightIdx) const
|
---|
| 2576 | {
|
---|
| 2577 | if (leftIdx == rightIdx)
|
---|
| 2578 | {
|
---|
| 2579 | pvs = viewCells[leftIdx]->GetPvs();
|
---|
| 2580 | }
|
---|
| 2581 | else
|
---|
| 2582 | {
|
---|
| 2583 | const int midSplit = (leftIdx + rightIdx) / 2;
|
---|
| 2584 |
|
---|
| 2585 | ObjectPvs leftPvs, rightPvs;
|
---|
| 2586 | MergeViewCellsRecursivly(leftPvs, viewCells, leftIdx, midSplit);
|
---|
| 2587 | MergeViewCellsRecursivly(rightPvs, viewCells, midSplit, rightIdx);
|
---|
| 2588 |
|
---|
| 2589 | ObjectPvs::Merge(pvs, leftPvs, rightPvs);
|
---|
| 2590 | }
|
---|
| 2591 | }
|
---|
| 2592 |
|
---|
| 2593 |
|
---|
[1786] | 2594 | #if 1
|
---|
[1761] | 2595 | PvsFilterStatistics
|
---|
[1715] | 2596 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
[1824] | 2597 | const bool useViewSpaceFilter,
|
---|
| 2598 | const float filterSize,
|
---|
| 2599 | ObjectPvs &pvs,
|
---|
| 2600 | vector<AxisAlignedBox3> *filteredBoxes
|
---|
| 2601 | )
|
---|
[1715] | 2602 | {
|
---|
[1824] | 2603 | //cout<<"y";
|
---|
[1761] | 2604 | PvsFilterStatistics stats;
|
---|
| 2605 |
|
---|
[1737] | 2606 | AxisAlignedBox3 vbox = GetViewCellBox(viewCell);
|
---|
| 2607 | Vector3 center = vbox.Center();
|
---|
[1786] | 2608 | // copy the PVS
|
---|
[1757] | 2609 | ObjectPvs basePvs = viewCell->GetPvs();
|
---|
| 2610 | Intersectable::NewMail();
|
---|
[1742] | 2611 |
|
---|
[1757] | 2612 | ObjectPvsIterator pit = basePvs.GetIterator();
|
---|
[1742] | 2613 |
|
---|
[1761] | 2614 | #if !USE_KD_PVS
|
---|
[1757] | 2615 | // first mark all object from this pvs
|
---|
| 2616 | while (pit.HasMoreEntries()) {
|
---|
[1824] | 2617 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2618 |
|
---|
| 2619 | Intersectable *object = entry.mObject;
|
---|
| 2620 | object->Mail();
|
---|
[1716] | 2621 | }
|
---|
[1761] | 2622 | #endif
|
---|
[1716] | 2623 |
|
---|
| 2624 | int pvsSize = 0;
|
---|
| 2625 | int nPvsSize = 0;
|
---|
[1761] | 2626 | float samples = (float)basePvs.GetSamples();
|
---|
| 2627 |
|
---|
[1787] | 2628 | Debug<<"f #s="<<samples<<" pvs size = "<<basePvs.GetSize();
|
---|
[1737] | 2629 | // cout<<"Filter size = "<<filterSize<<endl;
|
---|
| 2630 | // cout<<"vbox = "<<vbox<<endl;
|
---|
| 2631 | // cout<<"center = "<<center<<endl;
|
---|
[1716] | 2632 |
|
---|
[1737] | 2633 |
|
---|
[1757] | 2634 | // Minimal number of local samples to take into account
|
---|
| 2635 | // the local sampling density.
|
---|
| 2636 | // The size of the filter is a minimum of the conservative
|
---|
| 2637 | // local sampling density estimate (#rays intersecting teh viewcell and
|
---|
| 2638 | // the object)
|
---|
| 2639 | // and gobal estimate for the view cell
|
---|
| 2640 | // (total #rays intersecting the viewcell)
|
---|
[1824] | 2641 | int minLocalSamples = 2;
|
---|
| 2642 |
|
---|
[1737] | 2643 | float viewCellRadius = 0.5f*Magnitude(vbox.Diagonal());
|
---|
| 2644 |
|
---|
| 2645 | // now compute the filter box around the current viewCell
|
---|
[1757] | 2646 |
|
---|
[1737] | 2647 | if (useViewSpaceFilter) {
|
---|
[1824] | 2648 | // float radius = Max(viewCellRadius/100.0f, avgRadius - viewCellRadius);
|
---|
| 2649 | float radius = viewCellRadius/100.0f;
|
---|
| 2650 | vbox.Enlarge(radius);
|
---|
| 2651 | cout<<"vbox = "<<vbox<<endl;
|
---|
| 2652 | ViewCellContainer viewCells;
|
---|
| 2653 | ComputeBoxIntersections(vbox, viewCells);
|
---|
| 2654 |
|
---|
| 2655 | ViewCellContainer::const_iterator it = viewCells.begin(),
|
---|
| 2656 | it_end = viewCells.end();
|
---|
| 2657 | int i = 0;
|
---|
| 2658 | for (i=0; it != it_end; ++ it, ++ i)
|
---|
| 2659 | if ((*it) != viewCell) {
|
---|
| 2660 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2661 | basePvs.MergeInPlace((*it)->GetPvs());
|
---|
| 2662 | }
|
---|
| 2663 |
|
---|
| 2664 | // update samples and globalC
|
---|
| 2665 | samples = (float)pvs.GetSamples();
|
---|
| 2666 | // cout<<"neighboring viewcells = "<<i-1<<endl;
|
---|
| 2667 | // cout<<"Samples' = "<<samples<<endl;
|
---|
| 2668 | }
|
---|
[1737] | 2669 |
|
---|
[1824] | 2670 | // Minimal number of samples so that filtering takes place
|
---|
| 2671 | #define MIN_SAMPLES 50
|
---|
[1737] | 2672 |
|
---|
[1761] | 2673 | if (samples > MIN_SAMPLES) {
|
---|
[1824] | 2674 | float globalC = 2.0f*filterSize/sqrt(samples);
|
---|
[1761] | 2675 |
|
---|
[1824] | 2676 | pit = basePvs.GetIterator();
|
---|
[1761] | 2677 |
|
---|
[1824] | 2678 | ObjectContainer objects;
|
---|
[1761] | 2679 |
|
---|
[1824] | 2680 | while (pit.HasMoreEntries())
|
---|
| 2681 | {
|
---|
| 2682 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2683 |
|
---|
| 2684 | Intersectable *object = entry.mObject;
|
---|
| 2685 | // compute filter size based on the distance and the numebr of samples
|
---|
| 2686 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2687 |
|
---|
| 2688 | float distance = Distance(center, box.Center());
|
---|
| 2689 | float globalRadius = distance*globalC;
|
---|
| 2690 |
|
---|
| 2691 | int objectSamples = (int)entry.mData.mSumPdf;
|
---|
| 2692 | float localRadius = MAX_FLOAT;
|
---|
| 2693 |
|
---|
| 2694 | localRadius = filterSize*0.5f*Magnitude(box.Diagonal())/
|
---|
| 2695 | sqrt((float)objectSamples);
|
---|
| 2696 |
|
---|
| 2697 | // cout<<"lr="<<localRadius<<" gr="<<globalRadius<<endl;
|
---|
| 2698 |
|
---|
| 2699 | // now compute the filter size
|
---|
| 2700 | float radius;
|
---|
[1761] | 2701 |
|
---|
[1824] | 2702 | #if 0
|
---|
| 2703 | if (objectSamples <= 1) {
|
---|
| 2704 | if (localRadius > globalRadius) {
|
---|
| 2705 | radius = 0.5flRadius;
|
---|
| 2706 | stats.mLocalFilterCount++;
|
---|
| 2707 | } else {
|
---|
| 2708 | radius = globalRadius;
|
---|
| 2709 | stats.mGlobalFilterCount++;
|
---|
| 2710 | }
|
---|
| 2711 | } else {
|
---|
| 2712 | radius = localRadius;
|
---|
| 2713 | stats.mLocalFilterCount++;
|
---|
| 2714 | }
|
---|
| 2715 | #else
|
---|
| 2716 | radius = 0.5f*globalRadius + 0.5f*localRadius;
|
---|
| 2717 | stats.mLocalFilterCount++;
|
---|
| 2718 | stats.mGlobalFilterCount++;
|
---|
| 2719 | #endif
|
---|
| 2720 |
|
---|
| 2721 | stats.mAvgFilterRadius += radius;
|
---|
| 2722 |
|
---|
| 2723 | // cout<<"box = "<<box<<endl;
|
---|
| 2724 | // cout<<"distance = "<<distance<<endl;
|
---|
| 2725 | // cout<<"radiues = "<<radius<<endl;
|
---|
| 2726 |
|
---|
| 2727 | box.Enlarge(Vector3(radius));
|
---|
| 2728 | if (filteredBoxes)
|
---|
| 2729 | filteredBoxes->push_back(box);
|
---|
| 2730 | objects.clear();
|
---|
| 2731 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2732 | CollectObjects(box, objects);
|
---|
| 2733 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2734 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2735 | for (; noi != objects.end(); ++ noi) {
|
---|
| 2736 | Intersectable *o = *noi;
|
---|
| 2737 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2738 | pvs.AddSampleDirty(o, Limits::Small);
|
---|
| 2739 | }
|
---|
| 2740 | }
|
---|
| 2741 | stats.mAvgFilterRadius /= (stats.mLocalFilterCount + stats.mGlobalFilterCount);
|
---|
[1757] | 2742 | }
|
---|
[1761] | 2743 |
|
---|
[1771] | 2744 | Debug<<" nPvs size = "<<pvs.GetSize()<<endl;
|
---|
[1737] | 2745 |
|
---|
[1761] | 2746 | #if !USE_KD_PVS
|
---|
[1757] | 2747 | // copy the base pvs to the new pvs
|
---|
| 2748 | pit = basePvs.GetIterator();
|
---|
| 2749 | while (pit.HasMoreEntries()) {
|
---|
[1824] | 2750 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2751 | pvs.AddSampleDirty(entry.mObject, entry.mData.mSumPdf);
|
---|
[1716] | 2752 | }
|
---|
[1761] | 2753 | #endif
|
---|
[1771] | 2754 | viewCell->SetFilteredPvsSize(pvs.GetSize());
|
---|
[1740] | 2755 |
|
---|
[1737] | 2756 | Intersectable::NewMail();
|
---|
[1761] | 2757 | return stats;
|
---|
[1715] | 2758 | }
|
---|
[1786] | 2759 | #else
|
---|
| 2760 | PvsFilterStatistics
|
---|
| 2761 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
| 2762 | const bool useViewSpaceFilter,
|
---|
| 2763 | const float filterSize,
|
---|
| 2764 | ObjectPvs &pvs
|
---|
| 2765 | )
|
---|
[1787] | 2766 | {
|
---|
| 2767 | cout << "x";
|
---|
| 2768 | PvsFilterStatistics stats;
|
---|
[1786] | 2769 |
|
---|
[1787] | 2770 | AxisAlignedBox3 vbox = GetViewCellBox(viewCell);
|
---|
| 2771 | Vector3 center = vbox.Center();
|
---|
| 2772 | // copy the PVS
|
---|
| 2773 | ObjectPvs basePvs;// = viewCell->GetPvs();
|
---|
| 2774 | Intersectable::NewMail();
|
---|
[1786] | 2775 |
|
---|
[1787] | 2776 | ObjectPvsIterator pit = viewCell->GetPvs().GetIterator();
|
---|
[1786] | 2777 |
|
---|
| 2778 | #if !USE_KD_PVS
|
---|
[1787] | 2779 | // first mark all object from this pvs
|
---|
| 2780 | while (pit.HasMoreEntries())
|
---|
| 2781 | {
|
---|
| 2782 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2783 |
|
---|
| 2784 | Intersectable *object = entry.mObject;
|
---|
| 2785 | object->Mail();
|
---|
| 2786 | }
|
---|
[1786] | 2787 | #endif
|
---|
| 2788 |
|
---|
[1787] | 2789 | int pvsSize = 0;
|
---|
| 2790 | int nPvsSize = 0;
|
---|
| 2791 | float samples = (float)viewCell->GetPvs().GetSamples();
|
---|
[1786] | 2792 |
|
---|
[1787] | 2793 | Debug<<"f #s="<<samples<<"pvs size = "<<viewCell->GetPvs().GetSize();
|
---|
| 2794 | // cout<<"Filter size = "<<filterSize<<endl;
|
---|
| 2795 | // cout<<"vbox = "<<vbox<<endl;
|
---|
| 2796 | // cout<<"center = "<<center<<endl;
|
---|
[1786] | 2797 |
|
---|
[1787] | 2798 |
|
---|
| 2799 | // Minimal number of local samples to take into account
|
---|
| 2800 | // the local sampling density.
|
---|
| 2801 | // The size of the filter is a minimum of the conservative
|
---|
| 2802 | // local sampling density estimate (#rays intersecting teh viewcell and
|
---|
| 2803 | // the object)
|
---|
| 2804 | // and gobal estimate for the view cell
|
---|
| 2805 | // (total #rays intersecting the viewcell)
|
---|
[1786] | 2806 | #define MIN_LOCAL_SAMPLES 5
|
---|
| 2807 |
|
---|
[1787] | 2808 | float viewCellRadius = 0.5f*Magnitude(vbox.Diagonal());
|
---|
| 2809 |
|
---|
| 2810 | // now compute the filter box around the current viewCell
|
---|
| 2811 |
|
---|
| 2812 | if (useViewSpaceFilter)
|
---|
| 2813 | {
|
---|
| 2814 | // float radius = Max(viewCellRadius/100.0f, avgRadius - viewCellRadius);
|
---|
| 2815 | float radius = viewCellRadius/100.0f;
|
---|
| 2816 | vbox.Enlarge(radius);
|
---|
| 2817 | cout<<"vbox = "<<vbox<<endl;
|
---|
| 2818 | ViewCellContainer viewCells;
|
---|
| 2819 | ComputeBoxIntersections(vbox, viewCells);
|
---|
[1786] | 2820 |
|
---|
[1787] | 2821 | MergeViewCellsEfficient(basePvs, viewCells);
|
---|
| 2822 | cout << "basepvs size " << basePvs.GetSize() << endl;
|
---|
| 2823 | // update samples and globalC
|
---|
| 2824 | samples = (float)pvs.GetSamples();
|
---|
| 2825 | // cout<<"neighboring viewcells = "<<i-1<<endl;
|
---|
| 2826 | // cout<<"Samples' = "<<samples<<endl;
|
---|
| 2827 | }
|
---|
| 2828 | else
|
---|
| 2829 | {
|
---|
| 2830 | basePvs = viewCell->GetPvs();
|
---|
| 2831 | }
|
---|
[1715] | 2832 |
|
---|
[1787] | 2833 | // Minimal number of samples so that filtering takes place
|
---|
[1786] | 2834 | #define MIN_SAMPLES 100
|
---|
[1787] | 2835 | if (samples > MIN_SAMPLES)
|
---|
| 2836 | {
|
---|
| 2837 | float globalC = 2.0f*filterSize/sqrt(samples);
|
---|
[1786] | 2838 |
|
---|
[1787] | 2839 | pit = basePvs.GetIterator();
|
---|
[1786] | 2840 |
|
---|
[1787] | 2841 | ObjectContainer objects;
|
---|
| 2842 |
|
---|
| 2843 | while (pit.HasMoreEntries())
|
---|
| 2844 | {
|
---|
| 2845 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2846 |
|
---|
| 2847 | Intersectable *object = entry.mObject;
|
---|
| 2848 | // compute filter size based on the distance and the numebr of samples
|
---|
| 2849 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2850 |
|
---|
| 2851 | float distance = Distance(center, box.Center());
|
---|
| 2852 | float globalRadius = distance*globalC;
|
---|
| 2853 |
|
---|
| 2854 | int objectSamples = (int)entry.mData.mSumPdf;
|
---|
| 2855 | float localRadius = MAX_FLOAT;
|
---|
| 2856 |
|
---|
| 2857 | if (objectSamples > MIN_LOCAL_SAMPLES)
|
---|
| 2858 | {
|
---|
| 2859 | localRadius = filterSize*0.5f*Magnitude(box.Diagonal())/
|
---|
| 2860 | sqrt((float)objectSamples);
|
---|
| 2861 | }
|
---|
| 2862 |
|
---|
| 2863 | // cout<<"lr="<<localRadius<<" gr="<<globalRadius<<endl;
|
---|
| 2864 |
|
---|
| 2865 | // now compute the filter size
|
---|
| 2866 | float radius;
|
---|
| 2867 |
|
---|
| 2868 | if (localRadius < globalRadius)
|
---|
| 2869 | {
|
---|
| 2870 | radius = localRadius;
|
---|
| 2871 | stats.mLocalFilterCount++;
|
---|
| 2872 | }
|
---|
| 2873 | else
|
---|
| 2874 | {
|
---|
| 2875 | radius = globalRadius;
|
---|
| 2876 | stats.mGlobalFilterCount++;
|
---|
| 2877 | }
|
---|
| 2878 |
|
---|
| 2879 | stats.mAvgFilterRadius += radius;
|
---|
| 2880 |
|
---|
| 2881 | // cout<<"box = "<<box<<endl;
|
---|
| 2882 | // cout<<"distance = "<<distance<<endl;
|
---|
| 2883 | // cout<<"radiues = "<<radius<<endl;
|
---|
| 2884 |
|
---|
| 2885 | box.Enlarge(Vector3(radius));
|
---|
| 2886 | objects.clear();
|
---|
| 2887 |
|
---|
| 2888 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2889 | CollectObjects(box, objects);
|
---|
| 2890 |
|
---|
| 2891 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2892 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2893 | for (; noi != objects.end(); ++ noi)
|
---|
| 2894 | {
|
---|
| 2895 | Intersectable *o = *noi;
|
---|
| 2896 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2897 | pvs.AddSampleDirty(o, Limits::Small);
|
---|
| 2898 | }
|
---|
[1786] | 2899 | }
|
---|
[1716] | 2900 |
|
---|
[1787] | 2901 | stats.mAvgFilterRadius /= (stats.mLocalFilterCount + stats.mGlobalFilterCount);
|
---|
| 2902 | }
|
---|
| 2903 |
|
---|
| 2904 | Debug<<" nPvs size = "<<pvs.GetSize()<<endl;
|
---|
| 2905 |
|
---|
[1786] | 2906 | #if !USE_KD_PVS
|
---|
[1787] | 2907 | // copy the base pvs to the new pvs
|
---|
| 2908 | pit = basePvs.GetIterator();
|
---|
| 2909 | while (pit.HasMoreEntries())
|
---|
| 2910 | {
|
---|
| 2911 | ObjectPvsEntry entry = pit.Next();
|
---|
| 2912 | pvs.AddSampleDirty(entry.mObject, entry.mData.mSumPdf);
|
---|
| 2913 | }
|
---|
[1786] | 2914 | #endif
|
---|
[1787] | 2915 | viewCell->SetFilteredPvsSize(pvs.GetSize());
|
---|
| 2916 |
|
---|
| 2917 | Intersectable::NewMail();
|
---|
| 2918 |
|
---|
| 2919 | return stats;
|
---|
[1786] | 2920 | }
|
---|
| 2921 | #endif
|
---|
| 2922 |
|
---|
| 2923 |
|
---|
[1787] | 2924 |
|
---|
[1571] | 2925 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2926 | ViewCell *vc,
|
---|
| 2927 | bool colorCode) const
|
---|
[1021] | 2928 | {
|
---|
| 2929 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2930 |
|
---|
| 2931 | float importance = 0;
|
---|
| 2932 | static Material m;
|
---|
[1760] | 2933 | //cout << "color code: " << colorCode << endl;
|
---|
[1021] | 2934 | switch (mColorCode)
|
---|
| 2935 | {
|
---|
| 2936 | case 0: // Random
|
---|
| 2937 | {
|
---|
| 2938 | if (vcValid)
|
---|
| 2939 | {
|
---|
[1765] | 2940 | m.mDiffuseColor.r = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 2941 | m.mDiffuseColor.g = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
| 2942 | m.mDiffuseColor.b = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
[1021] | 2943 | }
|
---|
| 2944 | else
|
---|
| 2945 | {
|
---|
| 2946 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2947 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2948 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2949 | }
|
---|
| 2950 |
|
---|
| 2951 | exporter->SetForcedMaterial(m);
|
---|
| 2952 | return;
|
---|
| 2953 | }
|
---|
| 2954 |
|
---|
| 2955 | case 1: // pvs
|
---|
[1763] | 2956 | {
|
---|
[1021] | 2957 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2958 | {
|
---|
[1763] | 2959 | importance = (float)mViewCellsTree->GetPvsCost(vc) /
|
---|
| 2960 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[1121] | 2961 | }
|
---|
[1021] | 2962 | }
|
---|
| 2963 | break;
|
---|
| 2964 | case 2: // merges
|
---|
| 2965 | {
|
---|
| 2966 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2967 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2968 | }
|
---|
| 2969 | break;
|
---|
| 2970 | #if 0
|
---|
| 2971 | case 3: // merge tree differene
|
---|
| 2972 | {
|
---|
| 2973 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2974 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2975 |
|
---|
| 2976 | }
|
---|
| 2977 | break;
|
---|
| 2978 | #endif
|
---|
| 2979 | default:
|
---|
| 2980 | break;
|
---|
| 2981 | }
|
---|
| 2982 |
|
---|
| 2983 | // special color code for invalid view cells
|
---|
| 2984 | m.mDiffuseColor.r = importance;
|
---|
[1765] | 2985 | m.mDiffuseColor.g = vcValid ? 0.0f : 1.0f;
|
---|
| 2986 | m.mDiffuseColor.b = 1.0f - importance;
|
---|
[1021] | 2987 |
|
---|
| 2988 | //Debug << "importance: " << importance << endl;
|
---|
| 2989 | exporter->SetForcedMaterial(m);
|
---|
| 2990 | }
|
---|
| 2991 |
|
---|
| 2992 |
|
---|
[1022] | 2993 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2994 | vector<MergeCandidate> &candidates)
|
---|
| 2995 | {
|
---|
| 2996 | // implemented in subclasses
|
---|
| 2997 | }
|
---|
| 2998 |
|
---|
[1047] | 2999 |
|
---|
[1718] | 3000 | void ViewCellsManager::UpdatePvsForEvaluation()
|
---|
[1608] | 3001 | {
|
---|
[1718] | 3002 | ObjectPvs objPvs;
|
---|
| 3003 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
[1608] | 3004 | }
|
---|
| 3005 |
|
---|
[1168] | 3006 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 3007 | {
|
---|
| 3008 | // terminate traversal
|
---|
| 3009 | if (root->IsLeaf())
|
---|
| 3010 | {
|
---|
[1709] | 3011 | //cout << "updating leaf" << endl;
|
---|
[1168] | 3012 | // we assume that pvs is explicitly stored in leaves
|
---|
| 3013 | pvs = root->GetPvs();
|
---|
[1707] | 3014 | UpdateScalarPvsSize(root, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 3015 | return;
|
---|
| 3016 | }
|
---|
[1709] | 3017 |
|
---|
[1586] | 3018 | ////////////////
|
---|
| 3019 | //-- interior node => propagate pvs up the tree
|
---|
| 3020 |
|
---|
[1168] | 3021 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 3022 |
|
---|
| 3023 | // reset interior pvs
|
---|
[1168] | 3024 | interior->GetPvs().Clear();
|
---|
[1606] | 3025 | // reset recursive pvs
|
---|
[1168] | 3026 | pvs.Clear();
|
---|
[1695] | 3027 |
|
---|
| 3028 | // pvss of child nodes
|
---|
[1168] | 3029 | vector<ObjectPvs> pvsList;
|
---|
[1709] | 3030 | pvsList.resize((int)interior->mChildren.size());
|
---|
[1168] | 3031 |
|
---|
| 3032 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[1709] | 3033 |
|
---|
[1695] | 3034 | int i = 0;
|
---|
[1709] | 3035 |
|
---|
[1695] | 3036 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[1168] | 3037 | {
|
---|
[1586] | 3038 | //////////////////
|
---|
[1168] | 3039 | //-- recursivly compute child pvss
|
---|
[1695] | 3040 | UpdatePvsForEvaluation(*vit, pvsList[i]/*objPvs*/);
|
---|
[1168] | 3041 | }
|
---|
| 3042 |
|
---|
| 3043 | #if 1
|
---|
| 3044 | Intersectable::NewMail();
|
---|
| 3045 |
|
---|
| 3046 | //-- faster way of computing pvs:
|
---|
[1586] | 3047 | //-- construct merged pvs by adding
|
---|
| 3048 | //-- and only those of the next pvs which were not mailed.
|
---|
| 3049 | //-- note: sumpdf is not correct!!
|
---|
| 3050 |
|
---|
[1168] | 3051 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 3052 |
|
---|
| 3053 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 3054 | {
|
---|
[1742] | 3055 | ObjectPvsIterator pit = (*oit).GetIterator();
|
---|
| 3056 |
|
---|
| 3057 | // first mark all object from this pvs
|
---|
| 3058 | while (pit.HasMoreEntries())
|
---|
| 3059 | {
|
---|
| 3060 | ObjectPvsEntry entry = pit.Next();
|
---|
[1168] | 3061 |
|
---|
[1742] | 3062 | Intersectable *intersect = entry.mObject;
|
---|
| 3063 |
|
---|
[1168] | 3064 | if (!intersect->Mailed())
|
---|
[1764] | 3065 | {
|
---|
[1742] | 3066 | pvs.AddSample(intersect, entry.mData.mSumPdf);
|
---|
[1168] | 3067 | intersect->Mail();
|
---|
| 3068 | }
|
---|
| 3069 | }
|
---|
| 3070 | }
|
---|
| 3071 |
|
---|
| 3072 | // store pvs in this node
|
---|
| 3073 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 3074 | {
|
---|
| 3075 | interior->SetPvs(pvs);
|
---|
| 3076 | }
|
---|
| 3077 |
|
---|
| 3078 | // set new pvs size
|
---|
[1707] | 3079 | UpdateScalarPvsSize(interior, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 3080 |
|
---|
[1586] | 3081 | #else
|
---|
| 3082 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 3083 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 3084 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 3085 | #endif
|
---|
| 3086 | }
|
---|
| 3087 |
|
---|
[1174] | 3088 |
|
---|
| 3089 |
|
---|
[1145] | 3090 | /*******************************************************************/
|
---|
| 3091 | /* BspViewCellsManager implementation */
|
---|
| 3092 | /*******************************************************************/
|
---|
[440] | 3093 |
|
---|
[482] | 3094 |
|
---|
[1264] | 3095 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 3096 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 3097 | {
|
---|
[1004] | 3098 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[1640] | 3099 |
|
---|
[587] | 3100 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 3101 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 3102 | }
|
---|
| 3103 |
|
---|
[462] | 3104 |
|
---|
[440] | 3105 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3106 | {
|
---|
| 3107 | return mBspTree->GetRoot() != NULL;
|
---|
| 3108 | }
|
---|
| 3109 |
|
---|
[480] | 3110 |
|
---|
[440] | 3111 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3112 | {
|
---|
| 3113 | return new BspViewCell(mesh);
|
---|
| 3114 | }
|
---|
| 3115 |
|
---|
[480] | 3116 |
|
---|
[574] | 3117 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 3118 | const VssRayContainer &rays)
|
---|
[440] | 3119 | {
|
---|
[1545] | 3120 | // if view cells were already constructed, we can finish
|
---|
[440] | 3121 | if (ViewCellsConstructed())
|
---|
| 3122 | return 0;
|
---|
| 3123 |
|
---|
| 3124 | int sampleContributions = 0;
|
---|
[503] | 3125 |
|
---|
[469] | 3126 | // construct view cells using the collected samples
|
---|
| 3127 | RayContainer constructionRays;
|
---|
| 3128 | VssRayContainer savedRays;
|
---|
[440] | 3129 |
|
---|
[1563] | 3130 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 3131 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 3132 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 3133 |
|
---|
[473] | 3134 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 3135 |
|
---|
[469] | 3136 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 3137 | {
|
---|
[473] | 3138 | if (Random(1.0f) < prop)
|
---|
[469] | 3139 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 3140 | else
|
---|
| 3141 | savedRays.push_back(*it);
|
---|
| 3142 | }
|
---|
[440] | 3143 |
|
---|
[1545] | 3144 | if (!mUsePredefinedViewCells)
|
---|
[503] | 3145 | {
|
---|
| 3146 | // no view cells loaded
|
---|
[587] | 3147 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 3148 | // collect final view cells
|
---|
| 3149 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 3150 | }
|
---|
[469] | 3151 | else
|
---|
[1551] | 3152 | {
|
---|
[1545] | 3153 | // use predefined view cells geometry =>
|
---|
| 3154 | // contruct bsp hierarchy over them
|
---|
[469] | 3155 | mBspTree->Construct(mViewCells);
|
---|
| 3156 | }
|
---|
| 3157 |
|
---|
| 3158 | // destroy rays created only for construction
|
---|
| 3159 | CLEAR_CONTAINER(constructionRays);
|
---|
| 3160 |
|
---|
[440] | 3161 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 3162 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 3163 |
|
---|
[469] | 3164 | // recast rest of the rays
|
---|
[649] | 3165 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3166 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 3167 |
|
---|
[719] | 3168 | // real meshes are contructed at this stage
|
---|
| 3169 | if (0)
|
---|
| 3170 | {
|
---|
| 3171 | cout << "finalizing view cells ... ";
|
---|
| 3172 | FinalizeViewCells(true);
|
---|
| 3173 | cout << "finished" << endl;
|
---|
| 3174 | }
|
---|
| 3175 |
|
---|
[440] | 3176 | return sampleContributions;
|
---|
| 3177 | }
|
---|
| 3178 |
|
---|
[503] | 3179 |
|
---|
[480] | 3180 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 3181 | {
|
---|
[587] | 3182 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 3183 | { // view cells tree constructed
|
---|
[587] | 3184 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 3185 | }
|
---|
| 3186 | else
|
---|
[1545] | 3187 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 3188 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 3189 | }
|
---|
[480] | 3190 | }
|
---|
[468] | 3191 |
|
---|
[503] | 3192 |
|
---|
[471] | 3193 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 3194 | {
|
---|
[591] | 3195 | if (1)
|
---|
| 3196 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 3197 | else
|
---|
[1545] | 3198 | // compute view cell area as subsititute for probability
|
---|
[591] | 3199 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 3200 | }
|
---|
[440] | 3201 |
|
---|
[503] | 3202 |
|
---|
[440] | 3203 |
|
---|
[468] | 3204 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3205 | const Vector3 &termination,
|
---|
| 3206 | ViewCellContainer &viewcells)
|
---|
[440] | 3207 | {
|
---|
[468] | 3208 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 3209 | }
|
---|
| 3210 |
|
---|
| 3211 |
|
---|
[1551] | 3212 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 3213 | {
|
---|
| 3214 | // save color code
|
---|
| 3215 | const int savedColorCode = mColorCode;
|
---|
| 3216 |
|
---|
[1763] | 3217 | Exporter *exporter;
|
---|
| 3218 |
|
---|
| 3219 | #if 0
|
---|
[1545] | 3220 | // export merged view cells
|
---|
| 3221 | mColorCode = 0; // use random colors
|
---|
| 3222 |
|
---|
[1763] | 3223 | exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[1545] | 3224 |
|
---|
| 3225 | cout << "exporting view cells after merge ... ";
|
---|
| 3226 |
|
---|
| 3227 | if (exporter)
|
---|
| 3228 | {
|
---|
| 3229 | if (mExportGeometry)
|
---|
| 3230 | {
|
---|
| 3231 | exporter->ExportGeometry(objects);
|
---|
| 3232 | }
|
---|
| 3233 |
|
---|
| 3234 | exporter->SetFilled();
|
---|
[1760] | 3235 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3236 |
|
---|
| 3237 | delete exporter;
|
---|
| 3238 | }
|
---|
| 3239 | cout << "finished" << endl;
|
---|
[1763] | 3240 | #endif
|
---|
[1545] | 3241 |
|
---|
| 3242 | // export merged view cells using pvs color coding
|
---|
| 3243 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 3244 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3245 |
|
---|
| 3246 | if (exporter)
|
---|
| 3247 | {
|
---|
| 3248 | if (mExportGeometry)
|
---|
| 3249 | {
|
---|
| 3250 | exporter->ExportGeometry(objects);
|
---|
| 3251 | }
|
---|
| 3252 |
|
---|
| 3253 | exporter->SetFilled();
|
---|
[1760] | 3254 | mColorCode = 1;
|
---|
[1763] | 3255 |
|
---|
[1760] | 3256 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1545] | 3257 |
|
---|
| 3258 | delete exporter;
|
---|
| 3259 | }
|
---|
| 3260 | cout << "finished" << endl;
|
---|
| 3261 |
|
---|
| 3262 | mColorCode = savedColorCode;
|
---|
| 3263 | }
|
---|
| 3264 |
|
---|
| 3265 |
|
---|
[503] | 3266 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 3267 | const VssRayContainer &rays)
|
---|
| 3268 | {
|
---|
[469] | 3269 | if (!ViewCellsConstructed())
|
---|
[441] | 3270 | {
|
---|
| 3271 | Debug << "view cells not constructed" << endl;
|
---|
| 3272 | return 0;
|
---|
| 3273 | }
|
---|
[590] | 3274 |
|
---|
[1414] | 3275 | // view cells already finished before post processing step,
|
---|
| 3276 | // i.e., because they were loaded from disc
|
---|
[590] | 3277 | if (mViewCellsFinished)
|
---|
| 3278 | {
|
---|
| 3279 | FinalizeViewCells(true);
|
---|
| 3280 | EvaluateViewCellsStats();
|
---|
| 3281 |
|
---|
| 3282 | return 0;
|
---|
| 3283 | }
|
---|
| 3284 |
|
---|
[1444] | 3285 | //////////////////
|
---|
[1414] | 3286 | //-- merge leaves of the view cell hierarchy
|
---|
| 3287 |
|
---|
[649] | 3288 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 3289 | long startTime = GetTime();
|
---|
| 3290 |
|
---|
| 3291 | VssRayContainer postProcessRays;
|
---|
| 3292 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3293 |
|
---|
[592] | 3294 | if (mMergeViewCells)
|
---|
[591] | 3295 | {
|
---|
[660] | 3296 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 3297 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 3298 | }
|
---|
| 3299 | else
|
---|
| 3300 | {
|
---|
[660] | 3301 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 3302 | ViewCell *root;
|
---|
| 3303 | // the spatial merge tree is difficult to build for
|
---|
| 3304 | // this type of construction, as view cells cover several
|
---|
| 3305 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 3306 | if (mUsePredefinedViewCells)
|
---|
| 3307 | {
|
---|
| 3308 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 3309 | }
|
---|
| 3310 | else
|
---|
| 3311 | {
|
---|
| 3312 | // create spatial merge hierarchy
|
---|
| 3313 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 3314 | }
|
---|
| 3315 |
|
---|
[752] | 3316 | mViewCellsTree->SetRoot(root);
|
---|
| 3317 |
|
---|
[1415] | 3318 | // recompute pvs in the whole hierarchy
|
---|
[752] | 3319 | ObjectPvs pvs;
|
---|
| 3320 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 3321 | }
|
---|
[440] | 3322 |
|
---|
[1415] | 3323 | cout << "finished" << endl;
|
---|
| 3324 | cout << "merged view cells in "
|
---|
| 3325 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 3326 |
|
---|
| 3327 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3328 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 3329 |
|
---|
| 3330 |
|
---|
[1418] | 3331 | ////////////////////////
|
---|
[1444] | 3332 | //-- visualization and statistics after merge
|
---|
[1415] | 3333 |
|
---|
[666] | 3334 | if (1)
|
---|
| 3335 | {
|
---|
| 3336 | char mstats[100];
|
---|
[1004] | 3337 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3338 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3339 | }
|
---|
[650] | 3340 |
|
---|
[1551] | 3341 | // recompute view cells and stats
|
---|
| 3342 | ResetViewCells();
|
---|
[660] | 3343 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 3344 |
|
---|
[1551] | 3345 | // visualization of the view cells
|
---|
[1763] | 3346 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 3347 |
|
---|
[719] | 3348 | // compute final meshes and volume / area
|
---|
| 3349 | if (1) FinalizeViewCells(true);
|
---|
[840] | 3350 |
|
---|
[650] | 3351 | return 0;
|
---|
[440] | 3352 | }
|
---|
| 3353 |
|
---|
[477] | 3354 |
|
---|
| 3355 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 3356 | {
|
---|
| 3357 | }
|
---|
| 3358 |
|
---|
| 3359 |
|
---|
[440] | 3360 | int BspViewCellsManager::GetType() const
|
---|
| 3361 | {
|
---|
| 3362 | return BSP;
|
---|
| 3363 | }
|
---|
| 3364 |
|
---|
| 3365 |
|
---|
| 3366 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3367 | const VssRayContainer &sampleRays)
|
---|
[440] | 3368 | {
|
---|
[469] | 3369 | if (!ViewCellsConstructed())
|
---|
| 3370 | return;
|
---|
[574] | 3371 |
|
---|
[1563] | 3372 | const int savedColorCode = mColorCode;
|
---|
[1551] | 3373 |
|
---|
[600] | 3374 | if (1) // export final view cells
|
---|
[440] | 3375 | {
|
---|
[1020] | 3376 | mColorCode = 1; // hack color code
|
---|
[1415] | 3377 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3378 |
|
---|
| 3379 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 3380 |
|
---|
[469] | 3381 | if (exporter)
|
---|
[440] | 3382 | {
|
---|
[600] | 3383 | if (mExportGeometry)
|
---|
[1416] | 3384 | {
|
---|
[600] | 3385 | exporter->ExportGeometry(objects);
|
---|
[1416] | 3386 | }
|
---|
[590] | 3387 |
|
---|
[1760] | 3388 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[469] | 3389 | delete exporter;
|
---|
[440] | 3390 | }
|
---|
[469] | 3391 | cout << "finished" << endl;
|
---|
[503] | 3392 | }
|
---|
[1551] | 3393 |
|
---|
[1545] | 3394 | // reset color code
|
---|
[600] | 3395 | mColorCode = savedColorCode;
|
---|
| 3396 |
|
---|
[1416] | 3397 |
|
---|
| 3398 | //////////////////
|
---|
[469] | 3399 | //-- visualization of the BSP splits
|
---|
[1416] | 3400 |
|
---|
[469] | 3401 | bool exportSplits = false;
|
---|
[1004] | 3402 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3403 |
|
---|
[469] | 3404 | if (exportSplits)
|
---|
[440] | 3405 | {
|
---|
[469] | 3406 | cout << "exporting splits ... ";
|
---|
[477] | 3407 | ExportSplits(objects);
|
---|
[469] | 3408 | cout << "finished" << endl;
|
---|
[440] | 3409 | }
|
---|
[477] | 3410 |
|
---|
[1570] | 3411 | int leafOut;
|
---|
| 3412 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 3413 | const int raysOut = 100;
|
---|
| 3414 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 3415 | }
|
---|
| 3416 |
|
---|
| 3417 |
|
---|
[477] | 3418 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 3419 | {
|
---|
| 3420 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3421 |
|
---|
[503] | 3422 | if (exporter)
|
---|
| 3423 | {
|
---|
[598] | 3424 | //exporter->SetFilled();
|
---|
| 3425 | if (mExportGeometry)
|
---|
[1545] | 3426 | {
|
---|
[598] | 3427 | exporter->ExportGeometry(objects);
|
---|
[1545] | 3428 | }
|
---|
[598] | 3429 |
|
---|
[503] | 3430 | Material m;
|
---|
[440] | 3431 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3432 | exporter->SetForcedMaterial(m);
|
---|
| 3433 | exporter->SetWireframe();
|
---|
[503] | 3434 |
|
---|
[440] | 3435 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 3436 |
|
---|
[1545] | 3437 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 3438 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3439 | exporter->SetForcedMaterial(m);
|
---|
[482] | 3440 | //exporter->ResetForcedMaterial();
|
---|
| 3441 |
|
---|
[440] | 3442 | delete exporter;
|
---|
| 3443 | }
|
---|
| 3444 | }
|
---|
| 3445 |
|
---|
[477] | 3446 |
|
---|
[1570] | 3447 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3448 | const int maxViewCells,
|
---|
| 3449 | const bool sortViewCells,
|
---|
| 3450 | const bool exportPvs,
|
---|
| 3451 | const bool exportRays,
|
---|
| 3452 | const int maxRays,
|
---|
| 3453 | const string prefix,
|
---|
| 3454 | VssRayContainer *visRays)
|
---|
[440] | 3455 | {
|
---|
[1570] | 3456 | if (sortViewCells)
|
---|
| 3457 | { // sort view cells to visualize the largest view cells
|
---|
[1789] | 3458 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1570] | 3459 | }
|
---|
[440] | 3460 |
|
---|
[1545] | 3461 | //////////
|
---|
[1570] | 3462 | //-- some view cells for output
|
---|
[503] | 3463 |
|
---|
[1570] | 3464 | ViewCell::NewMail();
|
---|
| 3465 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 3466 |
|
---|
| 3467 | for (int i = 0; i < limit; ++ i)
|
---|
| 3468 | {
|
---|
| 3469 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 3470 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 3471 |
|
---|
[1570] | 3472 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 3473 | continue;
|
---|
[587] | 3474 |
|
---|
[1570] | 3475 | vc->Mail();
|
---|
[503] | 3476 |
|
---|
[1570] | 3477 | ObjectPvs pvs;
|
---|
| 3478 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 3479 |
|
---|
[1571] | 3480 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 3481 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3482 |
|
---|
[1709] | 3483 | cout << "view cell " << idx << ": pvs cost=" << (int)mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[582] | 3484 |
|
---|
[1570] | 3485 | if (exportRays)
|
---|
| 3486 | {
|
---|
| 3487 | ////////////
|
---|
| 3488 | //-- export rays piercing this view cell
|
---|
[469] | 3489 |
|
---|
[1571] | 3490 | // use rays stored with the view cells
|
---|
| 3491 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 3492 | VssRayContainer collectRays;
|
---|
| 3493 |
|
---|
| 3494 | // collect initial view cells
|
---|
| 3495 | ViewCellContainer leaves;
|
---|
| 3496 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3497 |
|
---|
| 3498 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3499 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 3500 | {
|
---|
[1571] | 3501 | // prepare some rays for output
|
---|
[1696] | 3502 | VssRayContainer::const_iterator rit, rit_end = (*vit)->GetOrCreateRays()->end();
|
---|
| 3503 | for (rit = (*vit)->GetOrCreateRays()->begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 3504 | {
|
---|
| 3505 | collectRays.push_back(*rit);
|
---|
| 3506 | }
|
---|
| 3507 | }
|
---|
| 3508 |
|
---|
| 3509 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3510 |
|
---|
[1570] | 3511 | // prepare some rays for output
|
---|
| 3512 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3513 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3514 | {
|
---|
[1570] | 3515 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3516 | if (p < raysOut)
|
---|
[587] | 3517 | {
|
---|
[1571] | 3518 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3519 | {
|
---|
[1571] | 3520 | vcRays.push_back(*rit);
|
---|
[1580] | 3521 | }
|
---|
[1571] | 3522 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 3523 | vcRays2.push_back(*rit);
|
---|
| 3524 | else
|
---|
| 3525 | vcRays3.push_back(*rit);
|
---|
| 3526 |
|
---|
[587] | 3527 | }
|
---|
[477] | 3528 | }
|
---|
[1571] | 3529 |
|
---|
| 3530 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3531 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3532 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3533 | }
|
---|
[1570] | 3534 |
|
---|
| 3535 | ////////////////
|
---|
| 3536 | //-- export view cell geometry
|
---|
[587] | 3537 |
|
---|
[478] | 3538 | exporter->SetWireframe();
|
---|
[477] | 3539 |
|
---|
[478] | 3540 | Material m;//= RandomMaterial();
|
---|
| 3541 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3542 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3543 |
|
---|
[1416] | 3544 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3545 | exporter->SetFilled();
|
---|
[469] | 3546 |
|
---|
[1570] | 3547 | if (exportPvs)
|
---|
[478] | 3548 | {
|
---|
[1570] | 3549 | Intersectable::NewMail();
|
---|
[1742] | 3550 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 3551 |
|
---|
| 3552 | while (pit.HasMoreEntries())
|
---|
[1570] | 3553 | {
|
---|
[1742] | 3554 | ObjectPvsEntry entry = pit.Next();
|
---|
| 3555 |
|
---|
| 3556 | // output PVS of view cell
|
---|
| 3557 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 3558 |
|
---|
| 3559 | if (!intersect->Mailed())
|
---|
| 3560 | {
|
---|
| 3561 | intersect->Mail();
|
---|
[1571] | 3562 |
|
---|
[1570] | 3563 | m = RandomMaterial();
|
---|
| 3564 | exporter->SetForcedMaterial(m);
|
---|
| 3565 | exporter->ExportIntersectable(intersect);
|
---|
| 3566 | }
|
---|
[503] | 3567 | }
|
---|
[1570] | 3568 | cout << endl;
|
---|
[477] | 3569 | }
|
---|
[1570] | 3570 |
|
---|
[478] | 3571 | DEL_PTR(exporter);
|
---|
| 3572 | cout << "finished" << endl;
|
---|
[477] | 3573 | }
|
---|
[440] | 3574 | }
|
---|
| 3575 |
|
---|
[441] | 3576 |
|
---|
[693] | 3577 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3578 | {
|
---|
| 3579 | ViewCellContainer leaves;
|
---|
| 3580 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3581 |
|
---|
| 3582 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3583 |
|
---|
| 3584 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3585 | float subdivVol = 0;
|
---|
| 3586 | float newVol = 0;
|
---|
| 3587 |
|
---|
| 3588 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3589 | {
|
---|
| 3590 | BspNodeGeometry geom;
|
---|
[1551] | 3591 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3592 |
|
---|
| 3593 | const float lVol = geom.GetVolume();
|
---|
| 3594 | newVol += lVol;
|
---|
| 3595 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3596 |
|
---|
[1551] | 3597 | const float thres = 0.9f;
|
---|
[694] | 3598 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3599 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3600 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3601 | }
|
---|
| 3602 |
|
---|
| 3603 | Debug << "exact volume: " << vol << endl;
|
---|
| 3604 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3605 | Debug << "new volume: " << newVol << endl;
|
---|
| 3606 | }
|
---|
| 3607 |
|
---|
| 3608 |
|
---|
[580] | 3609 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3610 | ViewCell *vc,
|
---|
[1416] | 3611 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3612 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3613 | ) const
|
---|
[1557] | 3614 | {
|
---|
[660] | 3615 | if (clipPlane)
|
---|
[591] | 3616 | {
|
---|
[1047] | 3617 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3618 |
|
---|
[726] | 3619 | ViewCellContainer leaves;
|
---|
| 3620 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3621 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3622 |
|
---|
[726] | 3623 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3624 | {
|
---|
[726] | 3625 | BspNodeGeometry geom;
|
---|
[681] | 3626 | BspNodeGeometry front;
|
---|
| 3627 | BspNodeGeometry back;
|
---|
[591] | 3628 |
|
---|
[1551] | 3629 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3630 |
|
---|
[1563] | 3631 | const float eps = 0.0001f;
|
---|
[1047] | 3632 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3633 |
|
---|
| 3634 | if (cf == -1)
|
---|
| 3635 | {
|
---|
| 3636 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3637 | }
|
---|
| 3638 | else if (cf == 0)
|
---|
| 3639 | {
|
---|
| 3640 | geom.SplitGeometry(front,
|
---|
| 3641 | back,
|
---|
[1047] | 3642 | plane,
|
---|
[726] | 3643 | mViewSpaceBox,
|
---|
| 3644 | eps);
|
---|
[1563] | 3645 |
|
---|
[726] | 3646 | if (back.Valid())
|
---|
[1563] | 3647 | {
|
---|
[726] | 3648 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3649 | }
|
---|
| 3650 | }
|
---|
[681] | 3651 | }
|
---|
[591] | 3652 | }
|
---|
| 3653 | else
|
---|
| 3654 | {
|
---|
[1563] | 3655 | // export mesh if available
|
---|
| 3656 | // TODO: some bug here?
|
---|
| 3657 | if (1 && vc->GetMesh())
|
---|
| 3658 | {
|
---|
| 3659 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3660 | }
|
---|
| 3661 | else
|
---|
| 3662 | {
|
---|
| 3663 | BspNodeGeometry geom;
|
---|
| 3664 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3665 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3666 | }
|
---|
[591] | 3667 | }
|
---|
[482] | 3668 | }
|
---|
| 3669 |
|
---|
[503] | 3670 |
|
---|
| 3671 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3672 | {
|
---|
[1551] | 3673 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3674 | BspNodeGeometry geom;
|
---|
| 3675 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3676 |
|
---|
[1001] | 3677 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3678 |
|
---|
[840] | 3679 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3680 | vc->SetMesh(mesh);
|
---|
[503] | 3681 | }
|
---|
| 3682 |
|
---|
[551] | 3683 |
|
---|
[587] | 3684 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3685 | const bool createMesh)
|
---|
[502] | 3686 | {
|
---|
[587] | 3687 | float area = 0;
|
---|
| 3688 | float volume = 0;
|
---|
[572] | 3689 |
|
---|
[587] | 3690 | ViewCellContainer leaves;
|
---|
| 3691 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3692 |
|
---|
| 3693 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3694 |
|
---|
[693] | 3695 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3696 | {
|
---|
| 3697 | BspNodeGeometry geom;
|
---|
| 3698 |
|
---|
[1551] | 3699 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3700 |
|
---|
[719] | 3701 | const float lVol = geom.GetVolume();
|
---|
| 3702 | const float lArea = geom.GetArea();
|
---|
[693] | 3703 |
|
---|
| 3704 | area += lArea;
|
---|
| 3705 | volume += lVol;
|
---|
[1551] | 3706 |
|
---|
| 3707 | CreateMesh(*it);
|
---|
[587] | 3708 | }
|
---|
| 3709 |
|
---|
| 3710 | viewCell->SetVolume(volume);
|
---|
| 3711 | viewCell->SetArea(area);
|
---|
[502] | 3712 | }
|
---|
| 3713 |
|
---|
[580] | 3714 |
|
---|
[879] | 3715 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3716 | {
|
---|
[1021] | 3717 | if (!ViewCellsConstructed())
|
---|
[1545] | 3718 | {
|
---|
[587] | 3719 | return NULL;
|
---|
[1545] | 3720 | }
|
---|
[587] | 3721 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3722 | {
|
---|
[587] | 3723 | return NULL;
|
---|
[1545] | 3724 | }
|
---|
[587] | 3725 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3726 | }
|
---|
| 3727 |
|
---|
| 3728 |
|
---|
[587] | 3729 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3730 | vector<MergeCandidate> &candidates)
|
---|
| 3731 | {
|
---|
| 3732 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3733 |
|
---|
| 3734 | if (mUseRaysForMerge)
|
---|
| 3735 | {
|
---|
| 3736 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3737 | }
|
---|
| 3738 | else
|
---|
| 3739 | {
|
---|
| 3740 | vector<BspLeaf *> leaves;
|
---|
| 3741 | mBspTree->CollectLeaves(leaves);
|
---|
| 3742 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3743 | }
|
---|
| 3744 |
|
---|
| 3745 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3746 | }
|
---|
| 3747 |
|
---|
| 3748 |
|
---|
[440] | 3749 |
|
---|
[1047] | 3750 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3751 | const bool exportPvs,
|
---|
| 3752 | const ObjectContainer &objects)
|
---|
[590] | 3753 | {
|
---|
[1551] | 3754 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3755 | {
|
---|
| 3756 | return false;
|
---|
| 3757 | }
|
---|
| 3758 |
|
---|
[590] | 3759 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3760 |
|
---|
[1551] | 3761 | OUT_STREAM stream(filename.c_str());
|
---|
| 3762 |
|
---|
[590] | 3763 | // for output we need unique ids for each view cell
|
---|
| 3764 | CreateUniqueViewCellIds();
|
---|
[503] | 3765 |
|
---|
[590] | 3766 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3767 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3768 |
|
---|
[1551] | 3769 | if (exportPvs)
|
---|
| 3770 | {
|
---|
| 3771 | //////////
|
---|
| 3772 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3773 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3774 |
|
---|
[1551] | 3775 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3776 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3777 |
|
---|
[1551] | 3778 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3779 | {
|
---|
[1563] | 3780 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3781 |
|
---|
[1563] | 3782 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3783 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3784 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3785 | }
|
---|
[590] | 3786 |
|
---|
[1551] | 3787 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3788 | }
|
---|
| 3789 |
|
---|
| 3790 | ///////////
|
---|
| 3791 | //-- export the view cells and the pvs
|
---|
| 3792 |
|
---|
| 3793 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3794 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3795 |
|
---|
| 3796 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 3797 |
|
---|
[590] | 3798 | stream << "</ViewCells>" << endl;
|
---|
| 3799 |
|
---|
[1551] | 3800 | /////////////
|
---|
| 3801 | //-- export the view space hierarchy
|
---|
| 3802 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 3803 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3804 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 3805 |
|
---|
[590] | 3806 | mBspTree->Export(stream);
|
---|
| 3807 |
|
---|
[1551] | 3808 | // end tags
|
---|
| 3809 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 3810 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3811 |
|
---|
[1551] | 3812 | stream.close();
|
---|
[590] | 3813 | cout << "finished" << endl;
|
---|
[1551] | 3814 |
|
---|
[590] | 3815 | return true;
|
---|
| 3816 | }
|
---|
| 3817 |
|
---|
| 3818 |
|
---|
[1545] | 3819 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 3820 | {
|
---|
| 3821 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 3822 |
|
---|
| 3823 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3824 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1545] | 3825 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 3826 |
|
---|
| 3827 | float volume = 0;
|
---|
| 3828 | vector<BspLeaf *> leaves;
|
---|
| 3829 | mBspTree->CollectLeaves(leaves);
|
---|
| 3830 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 3831 | ViewCell::NewMail();
|
---|
| 3832 |
|
---|
[1545] | 3833 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 3834 | {
|
---|
| 3835 | BspLeaf *leaf = *lit;
|
---|
| 3836 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 3837 |
|
---|
[1548] | 3838 | if (!vc->Mailed())
|
---|
| 3839 | {
|
---|
| 3840 | vc->Mail();
|
---|
| 3841 | vc->SetMergeCost(0.0f);
|
---|
| 3842 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 3843 |
|
---|
[1548] | 3844 | volume += vc->GetVolume();
|
---|
| 3845 | volume += vc->GetVolume();
|
---|
| 3846 | vcRoot->SetVolume(volume);
|
---|
| 3847 | }
|
---|
[1545] | 3848 | }
|
---|
| 3849 |
|
---|
| 3850 | return vcRoot;
|
---|
| 3851 | }
|
---|
| 3852 |
|
---|
| 3853 |
|
---|
[650] | 3854 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3855 | {
|
---|
[752] | 3856 | // terminate recursion
|
---|
[650] | 3857 | if (root->IsLeaf())
|
---|
| 3858 | {
|
---|
[752] | 3859 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3860 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3861 | return leaf->GetViewCell();
|
---|
[650] | 3862 | }
|
---|
| 3863 |
|
---|
| 3864 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3865 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3866 |
|
---|
[752] | 3867 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3868 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[650] | 3869 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3870 |
|
---|
[650] | 3871 | float volume = 0;
|
---|
[649] | 3872 |
|
---|
[650] | 3873 | BspNode *front = interior->GetFront();
|
---|
| 3874 | BspNode *back = interior->GetBack();
|
---|
[649] | 3875 |
|
---|
[752] | 3876 |
|
---|
[1545] | 3877 | ////////////
|
---|
[752] | 3878 | //-- recursivly compute child hierarchies
|
---|
[1545] | 3879 |
|
---|
[650] | 3880 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3881 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3882 |
|
---|
[752] | 3883 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3884 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3885 |
|
---|
[650] | 3886 | volume += backVc->GetVolume();
|
---|
| 3887 | volume += frontVc->GetVolume();
|
---|
[649] | 3888 |
|
---|
[650] | 3889 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3890 |
|
---|
[650] | 3891 | return viewCellInterior;
|
---|
[610] | 3892 | }
|
---|
| 3893 |
|
---|
[650] | 3894 |
|
---|
[590] | 3895 | /************************************************************************/
|
---|
| 3896 | /* KdViewCellsManager implementation */
|
---|
| 3897 | /************************************************************************/
|
---|
| 3898 |
|
---|
| 3899 |
|
---|
| 3900 |
|
---|
[1264] | 3901 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3902 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3903 | {
|
---|
| 3904 | }
|
---|
| 3905 |
|
---|
[605] | 3906 |
|
---|
[471] | 3907 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3908 | {
|
---|
[479] | 3909 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3910 | if (0)
|
---|
| 3911 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3912 | else
|
---|
| 3913 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3914 | }
|
---|
| 3915 |
|
---|
| 3916 |
|
---|
| 3917 |
|
---|
[479] | 3918 |
|
---|
[480] | 3919 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3920 | {
|
---|
| 3921 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3922 | }
|
---|
[479] | 3923 |
|
---|
[519] | 3924 |
|
---|
[574] | 3925 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3926 | const VssRayContainer &rays)
|
---|
[440] | 3927 | {
|
---|
[441] | 3928 | // if view cells already constructed
|
---|
[440] | 3929 | if (ViewCellsConstructed())
|
---|
| 3930 | return 0;
|
---|
[441] | 3931 |
|
---|
[440] | 3932 | mKdTree->Construct();
|
---|
| 3933 |
|
---|
[480] | 3934 | mTotalAreaValid = false;
|
---|
[469] | 3935 | // create the view cells
|
---|
| 3936 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3937 | // cast rays
|
---|
[574] | 3938 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3939 |
|
---|
[479] | 3940 | EvaluateViewCellsStats();
|
---|
[660] | 3941 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3942 |
|
---|
[440] | 3943 | return 0;
|
---|
| 3944 | }
|
---|
| 3945 |
|
---|
[587] | 3946 |
|
---|
[440] | 3947 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3948 | {
|
---|
| 3949 | return mKdTree->GetRoot() != NULL;
|
---|
| 3950 | }
|
---|
| 3951 |
|
---|
[1020] | 3952 |
|
---|
[503] | 3953 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3954 | const VssRayContainer &rays)
|
---|
[440] | 3955 | {
|
---|
| 3956 | return 0;
|
---|
| 3957 | }
|
---|
| 3958 |
|
---|
[1020] | 3959 |
|
---|
[1570] | 3960 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3961 | const int maxViewCells,
|
---|
| 3962 | const bool sortViewCells,
|
---|
| 3963 | const bool exportPvs,
|
---|
| 3964 | const bool exportRays,
|
---|
| 3965 | const int maxRays,
|
---|
| 3966 | const string prefix,
|
---|
| 3967 | VssRayContainer *visRays)
|
---|
| 3968 | {
|
---|
| 3969 | // TODO
|
---|
| 3970 | }
|
---|
| 3971 |
|
---|
| 3972 |
|
---|
[440] | 3973 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3974 | const VssRayContainer &sampleRays)
|
---|
[440] | 3975 | {
|
---|
[441] | 3976 | if (!ViewCellsConstructed())
|
---|
| 3977 | return;
|
---|
| 3978 |
|
---|
[469] | 3979 | // using view cells instead of the kd PVS of objects
|
---|
| 3980 | const bool useViewCells = true;
|
---|
| 3981 | bool exportRays = false;
|
---|
[440] | 3982 |
|
---|
| 3983 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3984 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3985 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3986 |
|
---|
[469] | 3987 | if (useViewCells)
|
---|
[440] | 3988 | {
|
---|
[469] | 3989 | const int leafOut = 10;
|
---|
[503] | 3990 |
|
---|
[469] | 3991 | ViewCell::NewMail();
|
---|
[503] | 3992 |
|
---|
[469] | 3993 | //-- some rays for output
|
---|
| 3994 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3995 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3996 |
|
---|
| 3997 | //-- some random view cells and rays for output
|
---|
| 3998 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3999 |
|
---|
[469] | 4000 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 4001 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 4002 |
|
---|
[469] | 4003 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 4004 | {
|
---|
[469] | 4005 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 4006 | RayContainer vcRays;
|
---|
[503] | 4007 |
|
---|
[469] | 4008 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4009 | #if 0
|
---|
[469] | 4010 | // check whether we can add the current ray to the output rays
|
---|
[503] | 4011 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 4012 | {
|
---|
[469] | 4013 | Ray *ray = sampleRays[k];
|
---|
[503] | 4014 |
|
---|
[469] | 4015 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 4016 | {
|
---|
| 4017 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 4018 |
|
---|
| 4019 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 4020 | {
|
---|
| 4021 | vcRays.push_back(ray);
|
---|
| 4022 | }
|
---|
| 4023 | }
|
---|
[479] | 4024 | }
|
---|
[503] | 4025 | #endif
|
---|
[469] | 4026 | Intersectable::NewMail();
|
---|
[503] | 4027 |
|
---|
[469] | 4028 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 4029 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 4030 |
|
---|
[1570] | 4031 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 4032 | exporter->SetFilled();
|
---|
| 4033 |
|
---|
| 4034 | exporter->SetWireframe();
|
---|
| 4035 | //exporter->SetFilled();
|
---|
[503] | 4036 |
|
---|
[469] | 4037 | Material m;//= RandomMaterial();
|
---|
| 4038 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 4039 | exporter->SetForcedMaterial(m);
|
---|
[503] | 4040 |
|
---|
[469] | 4041 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 4042 | exporter->ExportBox(box);
|
---|
| 4043 |
|
---|
| 4044 | // export rays piercing this view cell
|
---|
[503] | 4045 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 4046 |
|
---|
[469] | 4047 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4048 | exporter->SetForcedMaterial(m);
|
---|
[503] | 4049 |
|
---|
[469] | 4050 | // exporter->SetWireframe();
|
---|
| 4051 | exporter->SetFilled();
|
---|
[503] | 4052 |
|
---|
[1742] | 4053 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
| 4054 |
|
---|
| 4055 | while (pit.HasMoreEntries())
|
---|
| 4056 | {
|
---|
| 4057 | ObjectPvsEntry entry = pit.Next();
|
---|
| 4058 |
|
---|
| 4059 | //-- output PVS of view cell
|
---|
| 4060 | Intersectable *intersect = entry.mObject;
|
---|
[469] | 4061 | if (!intersect->Mailed())
|
---|
| 4062 | {
|
---|
| 4063 | exporter->ExportIntersectable(intersect);
|
---|
| 4064 | intersect->Mail();
|
---|
[503] | 4065 | }
|
---|
[440] | 4066 | }
|
---|
[503] | 4067 |
|
---|
[469] | 4068 | DEL_PTR(exporter);
|
---|
| 4069 | cout << "finished" << endl;
|
---|
[440] | 4070 | }
|
---|
[469] | 4071 |
|
---|
| 4072 | DEL_PTR(rays);
|
---|
[440] | 4073 | }
|
---|
[469] | 4074 | else // using kd PVS of objects
|
---|
| 4075 | {
|
---|
| 4076 | for (int i = 0; i < limit; ++ i)
|
---|
| 4077 | {
|
---|
| 4078 | VssRay *ray = sampleRays[i];
|
---|
[503] | 4079 |
|
---|
[469] | 4080 | // check whether we can add this to the rays
|
---|
[503] | 4081 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 4082 | {
|
---|
| 4083 | if (objects[j] == ray->mTerminationObject)
|
---|
| 4084 | {
|
---|
| 4085 | rays[j].push_back(ray);
|
---|
| 4086 | }
|
---|
| 4087 | }
|
---|
| 4088 | }
|
---|
[440] | 4089 |
|
---|
[503] | 4090 | if (exportRays)
|
---|
[469] | 4091 | {
|
---|
| 4092 | Exporter *exporter = NULL;
|
---|
| 4093 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 4094 | exporter->SetWireframe();
|
---|
| 4095 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 4096 |
|
---|
[1757] | 4097 | for (int i = 0; i < pvsOut; i++)
|
---|
[469] | 4098 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 4099 |
|
---|
| 4100 | exporter->SetFilled();
|
---|
| 4101 | delete exporter;
|
---|
| 4102 | }
|
---|
[440] | 4103 |
|
---|
[503] | 4104 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 4105 | {
|
---|
| 4106 | Intersectable *object = objects[k];
|
---|
[1757] | 4107 | char str[64]; sprintf(str, "viewcell%04d.wrl", k);
|
---|
[440] | 4108 |
|
---|
[1570] | 4109 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 4110 | exporter->SetWireframe();
|
---|
[503] | 4111 |
|
---|
[1736] | 4112 | // matt: no kd pvs
|
---|
| 4113 | /*
|
---|
[1233] | 4114 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 4115 | Intersectable::NewMail();
|
---|
[503] | 4116 |
|
---|
[469] | 4117 | // avoid adding the object to the list
|
---|
| 4118 | object->Mail();
|
---|
| 4119 | ObjectContainer visibleObjects;
|
---|
[503] | 4120 |
|
---|
[1233] | 4121 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 4122 | {
|
---|
[1233] | 4123 | KdNode *node = (*kit).first;
|
---|
[469] | 4124 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 4125 |
|
---|
[469] | 4126 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 4127 | }
|
---|
[503] | 4128 |
|
---|
[469] | 4129 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 4130 | exporter->SetFilled();
|
---|
[503] | 4131 |
|
---|
[469] | 4132 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 4133 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 4134 |
|
---|
[469] | 4135 | Material m;
|
---|
| 4136 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4137 | exporter->SetForcedMaterial(m);
|
---|
| 4138 | exporter->ExportIntersectable(object);
|
---|
[1736] | 4139 | */
|
---|
[469] | 4140 | delete exporter;
|
---|
[440] | 4141 | }
|
---|
[503] | 4142 | }
|
---|
[440] | 4143 | }
|
---|
| 4144 |
|
---|
[469] | 4145 |
|
---|
[580] | 4146 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4147 | {
|
---|
| 4148 | return new KdViewCell(mesh);
|
---|
| 4149 | }
|
---|
[482] | 4150 |
|
---|
[580] | 4151 |
|
---|
| 4152 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4153 | ViewCell *vc,
|
---|
[1416] | 4154 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4155 | const AxisAlignedPlane *clipPlane
|
---|
| 4156 | ) const
|
---|
[482] | 4157 | {
|
---|
[580] | 4158 | ViewCellContainer leaves;
|
---|
| 4159 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4160 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4161 |
|
---|
| 4162 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4163 | {
|
---|
| 4164 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 4165 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 4166 | }
|
---|
[482] | 4167 | }
|
---|
| 4168 |
|
---|
| 4169 |
|
---|
[440] | 4170 | int KdViewCellsManager::GetType() const
|
---|
| 4171 | {
|
---|
| 4172 | return ViewCellsManager::KD;
|
---|
| 4173 | }
|
---|
| 4174 |
|
---|
| 4175 |
|
---|
[441] | 4176 |
|
---|
[440] | 4177 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 4178 | {
|
---|
| 4179 | KdNode *node = leaf;
|
---|
| 4180 |
|
---|
| 4181 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 4182 | node = node->mParent;
|
---|
[1176] | 4183 |
|
---|
[440] | 4184 | return node;
|
---|
| 4185 | }
|
---|
| 4186 |
|
---|
[469] | 4187 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4188 | const Vector3 &termination,
|
---|
| 4189 | ViewCellContainer &viewcells)
|
---|
[466] | 4190 | {
|
---|
[469] | 4191 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 4192 | }
|
---|
| 4193 |
|
---|
[469] | 4194 |
|
---|
[503] | 4195 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4196 | {
|
---|
[551] | 4197 | // TODO
|
---|
[503] | 4198 | }
|
---|
| 4199 |
|
---|
[580] | 4200 |
|
---|
| 4201 |
|
---|
| 4202 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4203 | vector<MergeCandidate> &candidates)
|
---|
| 4204 | {
|
---|
| 4205 | // TODO
|
---|
| 4206 | }
|
---|
| 4207 |
|
---|
[1021] | 4208 |
|
---|
| 4209 |
|
---|
[503] | 4210 | /**************************************************************************/
|
---|
| 4211 | /* VspBspViewCellsManager implementation */
|
---|
| 4212 | /**************************************************************************/
|
---|
[482] | 4213 |
|
---|
[503] | 4214 |
|
---|
[1264] | 4215 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 4216 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 4217 | {
|
---|
[1004] | 4218 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 4219 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 4220 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 4221 | }
|
---|
| 4222 |
|
---|
[477] | 4223 |
|
---|
[475] | 4224 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 4225 | {
|
---|
| 4226 | }
|
---|
| 4227 |
|
---|
[477] | 4228 |
|
---|
[471] | 4229 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 4230 | {
|
---|
[551] | 4231 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 4232 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 4233 | else
|
---|
| 4234 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 4235 | }
|
---|
| 4236 |
|
---|
[477] | 4237 |
|
---|
[480] | 4238 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 4239 | {
|
---|
[1545] | 4240 | // view cells tree constructed?
|
---|
[581] | 4241 | if (!ViewCellsTreeConstructed())
|
---|
| 4242 | {
|
---|
[590] | 4243 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 4244 | }
|
---|
| 4245 | else
|
---|
[1264] | 4246 | {
|
---|
| 4247 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 4248 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 4249 | }
|
---|
[480] | 4250 | }
|
---|
| 4251 |
|
---|
| 4252 |
|
---|
[1021] | 4253 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4254 | vector<MergeCandidate> &candidates)
|
---|
| 4255 | {
|
---|
| 4256 | cout << "collecting merge candidates ... " << endl;
|
---|
| 4257 |
|
---|
| 4258 | if (mUseRaysForMerge)
|
---|
| 4259 | {
|
---|
| 4260 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 4261 | }
|
---|
| 4262 | else
|
---|
| 4263 | {
|
---|
| 4264 | vector<BspLeaf *> leaves;
|
---|
| 4265 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 4266 |
|
---|
| 4267 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 4268 | }
|
---|
| 4269 |
|
---|
| 4270 | cout << "fininshed collecting candidates" << endl;
|
---|
| 4271 | }
|
---|
| 4272 |
|
---|
| 4273 |
|
---|
[442] | 4274 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4275 | {
|
---|
| 4276 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 4277 | }
|
---|
| 4278 |
|
---|
[462] | 4279 |
|
---|
[442] | 4280 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4281 | {
|
---|
| 4282 | return new BspViewCell(mesh);
|
---|
| 4283 | }
|
---|
| 4284 |
|
---|
[569] | 4285 |
|
---|
[574] | 4286 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 4287 | const VssRayContainer &rays)
|
---|
[442] | 4288 | {
|
---|
[710] | 4289 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4290 |
|
---|
[503] | 4291 | // if view cells were already constructed
|
---|
| 4292 | if (ViewCellsConstructed())
|
---|
[1545] | 4293 | {
|
---|
[503] | 4294 | return 0;
|
---|
[1545] | 4295 | }
|
---|
[442] | 4296 |
|
---|
[503] | 4297 | int sampleContributions = 0;
|
---|
| 4298 | VssRayContainer sampleRays;
|
---|
| 4299 |
|
---|
[1545] | 4300 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 4301 |
|
---|
[660] | 4302 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 4303 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 4304 |
|
---|
[1545] | 4305 | VssRayContainer savedRays;
|
---|
[487] | 4306 |
|
---|
[1545] | 4307 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4308 | {
|
---|
| 4309 | VssRayContainer constructionRays;
|
---|
| 4310 |
|
---|
| 4311 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 4312 |
|
---|
[1545] | 4313 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 4314 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 4315 |
|
---|
[667] | 4316 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 4317 | }
|
---|
[666] | 4318 | else
|
---|
[1221] | 4319 | {
|
---|
[1545] | 4320 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 4321 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 4322 | }
|
---|
[667] | 4323 |
|
---|
[490] | 4324 | // collapse invalid regions
|
---|
[491] | 4325 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 4326 | long startTime = GetTime();
|
---|
| 4327 |
|
---|
[1002] | 4328 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 4329 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4330 | << " seconds" << endl;
|
---|
| 4331 |
|
---|
[495] | 4332 | cout << "finished" << endl;
|
---|
[503] | 4333 |
|
---|
[1444] | 4334 | /////////////////
|
---|
[1221] | 4335 | //-- stats after construction
|
---|
| 4336 |
|
---|
[660] | 4337 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 4338 |
|
---|
[480] | 4339 | ResetViewCells();
|
---|
[660] | 4340 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 4341 |
|
---|
[491] | 4342 |
|
---|
[1444] | 4343 | //////////////////////
|
---|
[1545] | 4344 | //-- recast the rest of the rays
|
---|
[1570] | 4345 |
|
---|
[495] | 4346 | startTime = GetTime();
|
---|
[503] | 4347 |
|
---|
[491] | 4348 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 4349 |
|
---|
| 4350 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4351 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 4352 |
|
---|
[491] | 4353 | cout << "finished" << endl;
|
---|
| 4354 |
|
---|
[503] | 4355 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 4356 | << " secs" << endl;
|
---|
[442] | 4357 |
|
---|
[485] | 4358 | cout << "construction finished" << endl;
|
---|
[503] | 4359 |
|
---|
[719] | 4360 | if (0)
|
---|
[1545] | 4361 | { ////////
|
---|
[1077] | 4362 | //-- real meshes are contructed at this stage
|
---|
[1768] | 4363 |
|
---|
[719] | 4364 | cout << "finalizing view cells ... ";
|
---|
| 4365 | FinalizeViewCells(true);
|
---|
| 4366 | cout << "finished" << endl;
|
---|
| 4367 | }
|
---|
| 4368 |
|
---|
[442] | 4369 | return sampleContributions;
|
---|
| 4370 | }
|
---|
| 4371 |
|
---|
[489] | 4372 |
|
---|
[503] | 4373 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 4374 | const ObjectContainer &objects)
|
---|
[475] | 4375 | {
|
---|
[442] | 4376 | int vcSize = 0;
|
---|
| 4377 | int pvsSize = 0;
|
---|
| 4378 |
|
---|
[650] | 4379 | //-- merge view cells
|
---|
| 4380 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 4381 | long startTime = GetTime();
|
---|
| 4382 |
|
---|
| 4383 |
|
---|
[597] | 4384 | if (mMergeViewCells)
|
---|
| 4385 | {
|
---|
| 4386 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 4387 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 4388 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 4389 | }
|
---|
| 4390 | else
|
---|
| 4391 | {
|
---|
[710] | 4392 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4393 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 4394 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 4395 |
|
---|
| 4396 | // compute pvs
|
---|
| 4397 | ObjectPvs pvs;
|
---|
| 4398 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 4399 | }
|
---|
[442] | 4400 |
|
---|
[666] | 4401 | if (1)
|
---|
| 4402 | {
|
---|
| 4403 | char mstats[100];
|
---|
[752] | 4404 | ObjectPvs pvs;
|
---|
| 4405 |
|
---|
[1004] | 4406 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 4407 | mViewCellsTree->ExportStats(mstats);
|
---|
| 4408 | }
|
---|
[485] | 4409 |
|
---|
[650] | 4410 | cout << "merged view cells in "
|
---|
| 4411 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 4412 |
|
---|
[650] | 4413 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 4414 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 4415 |
|
---|
| 4416 |
|
---|
[1444] | 4417 | //////////////////
|
---|
| 4418 | //-- stats and visualizations
|
---|
| 4419 |
|
---|
[600] | 4420 | int savedColorCode = mColorCode;
|
---|
| 4421 |
|
---|
[660] | 4422 | // get currently active view cell set
|
---|
| 4423 | ResetViewCells();
|
---|
| 4424 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 4425 |
|
---|
[1616] | 4426 | if (mShowVisualization) // export merged view cells
|
---|
[483] | 4427 | {
|
---|
[600] | 4428 | mColorCode = 0;
|
---|
[744] | 4429 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 4430 |
|
---|
[485] | 4431 | cout << "exporting view cells after merge ... ";
|
---|
| 4432 |
|
---|
| 4433 | if (exporter)
|
---|
[483] | 4434 | {
|
---|
[600] | 4435 | if (0)
|
---|
| 4436 | exporter->SetWireframe();
|
---|
| 4437 | else
|
---|
| 4438 | exporter->SetFilled();
|
---|
| 4439 |
|
---|
[1760] | 4440 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[600] | 4441 |
|
---|
[485] | 4442 | if (mExportGeometry)
|
---|
[483] | 4443 | {
|
---|
[485] | 4444 | Material m;
|
---|
| 4445 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4446 | exporter->SetForcedMaterial(m);
|
---|
| 4447 | exporter->SetFilled();
|
---|
[442] | 4448 |
|
---|
[485] | 4449 | exporter->ExportGeometry(objects);
|
---|
[442] | 4450 | }
|
---|
[485] | 4451 |
|
---|
[600] | 4452 | delete exporter;
|
---|
| 4453 | }
|
---|
| 4454 | cout << "finished" << endl;
|
---|
| 4455 | }
|
---|
| 4456 |
|
---|
[1616] | 4457 | if (mShowVisualization)
|
---|
[600] | 4458 | {
|
---|
[1416] | 4459 | // use pvs size for color coding
|
---|
| 4460 | mColorCode = 1;
|
---|
[744] | 4461 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 4462 |
|
---|
[600] | 4463 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 4464 |
|
---|
| 4465 | if (exporter)
|
---|
| 4466 | {
|
---|
[1416] | 4467 | exporter->SetFilled();
|
---|
[598] | 4468 |
|
---|
[1760] | 4469 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[598] | 4470 |
|
---|
[600] | 4471 | if (mExportGeometry)
|
---|
| 4472 | {
|
---|
| 4473 | Material m;
|
---|
| 4474 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4475 | exporter->SetForcedMaterial(m);
|
---|
| 4476 | exporter->SetFilled();
|
---|
| 4477 |
|
---|
| 4478 | exporter->ExportGeometry(objects);
|
---|
| 4479 | }
|
---|
| 4480 |
|
---|
[485] | 4481 | delete exporter;
|
---|
[442] | 4482 | }
|
---|
[485] | 4483 | cout << "finished" << endl;
|
---|
[442] | 4484 | }
|
---|
[600] | 4485 |
|
---|
| 4486 | mColorCode = savedColorCode;
|
---|
[503] | 4487 | }
|
---|
[475] | 4488 |
|
---|
[503] | 4489 |
|
---|
[564] | 4490 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 4491 | const ObjectContainer &objects)
|
---|
[503] | 4492 | {
|
---|
[485] | 4493 | mRenderer->RenderScene();
|
---|
[1616] | 4494 |
|
---|
[503] | 4495 | SimulationStatistics ss;
|
---|
[485] | 4496 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 4497 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 4498 |
|
---|
[1414] | 4499 | const long startTime = GetTime();
|
---|
[489] | 4500 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 4501 |
|
---|
| 4502 | // refining the merged view cells
|
---|
[580] | 4503 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 4504 |
|
---|
[442] | 4505 | //-- stats and visualizations
|
---|
| 4506 | cout << "finished" << endl;
|
---|
[485] | 4507 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 4508 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 4509 |
|
---|
[485] | 4510 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 4511 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 4512 | }
|
---|
[495] | 4513 |
|
---|
[517] | 4514 |
|
---|
[503] | 4515 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4516 | const VssRayContainer &rays)
|
---|
[840] | 4517 | {
|
---|
[503] | 4518 | if (!ViewCellsConstructed())
|
---|
| 4519 | {
|
---|
[517] | 4520 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4521 | return 0;
|
---|
| 4522 | }
|
---|
[520] | 4523 |
|
---|
[609] | 4524 | // view cells already finished before post processing step
|
---|
| 4525 | // (i.e. because they were loaded)
|
---|
[520] | 4526 | if (mViewCellsFinished)
|
---|
[542] | 4527 | {
|
---|
[551] | 4528 | FinalizeViewCells(true);
|
---|
[542] | 4529 | EvaluateViewCellsStats();
|
---|
[577] | 4530 |
|
---|
[517] | 4531 | return 0;
|
---|
[542] | 4532 | }
|
---|
[448] | 4533 |
|
---|
[710] | 4534 | // check if new view cells turned invalid
|
---|
| 4535 | int minPvs, maxPvs;
|
---|
[564] | 4536 |
|
---|
[710] | 4537 | if (0)
|
---|
| 4538 | {
|
---|
| 4539 | minPvs = mMinPvsSize;
|
---|
| 4540 | maxPvs = mMaxPvsSize;
|
---|
| 4541 | }
|
---|
| 4542 | else
|
---|
| 4543 | {
|
---|
[1414] | 4544 | // problem matt: why did I start here from zero?
|
---|
| 4545 | minPvs = 0;
|
---|
[710] | 4546 | maxPvs = mMaxPvsSize;
|
---|
| 4547 | }
|
---|
[720] | 4548 |
|
---|
[710] | 4549 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4550 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4551 |
|
---|
| 4552 | SetValidity(minPvs, maxPvs);
|
---|
| 4553 |
|
---|
[574] | 4554 | // update valid view space according to valid view cells
|
---|
[720] | 4555 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4556 |
|
---|
[720] | 4557 | // area has to be recomputed
|
---|
[574] | 4558 | mTotalAreaValid = false;
|
---|
[517] | 4559 | VssRayContainer postProcessRays;
|
---|
[605] | 4560 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4561 |
|
---|
[517] | 4562 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4563 |
|
---|
[1444] | 4564 | //////////
|
---|
[1768] | 4565 | //-- merge neighbouring view cells
|
---|
[597] | 4566 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4567 |
|
---|
[1444] | 4568 | // refines the merged view cells
|
---|
[720] | 4569 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4570 |
|
---|
[1444] | 4571 |
|
---|
| 4572 | ///////////
|
---|
[660] | 4573 | //-- render simulation after merge + refine
|
---|
[1414] | 4574 |
|
---|
[1415] | 4575 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4576 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4577 | SimulationStatistics ss;
|
---|
| 4578 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4579 | cout << ss << endl;
|
---|
[1414] | 4580 |
|
---|
[600] | 4581 |
|
---|
[1418] | 4582 | ////////////
|
---|
[600] | 4583 | //-- compression
|
---|
[1768] | 4584 |
|
---|
[600] | 4585 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4586 | {
|
---|
[1586] | 4587 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4588 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 4589 |
|
---|
[752] | 4590 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 4591 |
|
---|
[1586] | 4592 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4593 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 4594 | }
|
---|
| 4595 |
|
---|
[517] | 4596 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4597 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4598 |
|
---|
[574] | 4599 | // recompute view cell list and statistics
|
---|
[520] | 4600 | ResetViewCells();
|
---|
| 4601 |
|
---|
[719] | 4602 | // compute final meshes and volume / area
|
---|
| 4603 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4604 |
|
---|
[503] | 4605 | return 0;
|
---|
[442] | 4606 | }
|
---|
| 4607 |
|
---|
[490] | 4608 |
|
---|
[442] | 4609 | int VspBspViewCellsManager::GetType() const
|
---|
| 4610 | {
|
---|
| 4611 | return VSP_BSP;
|
---|
| 4612 | }
|
---|
| 4613 |
|
---|
| 4614 |
|
---|
[650] | 4615 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4616 | {
|
---|
[752] | 4617 | // terminate recursion
|
---|
[650] | 4618 | if (root->IsLeaf())
|
---|
| 4619 | {
|
---|
[752] | 4620 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4621 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4622 | return leaf->GetViewCell();
|
---|
[650] | 4623 | }
|
---|
| 4624 |
|
---|
[752] | 4625 |
|
---|
[650] | 4626 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4627 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4628 |
|
---|
[752] | 4629 | // evaluate merge cost for priority traversal
|
---|
[650] | 4630 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4631 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4632 |
|
---|
[650] | 4633 | float volume = 0;
|
---|
| 4634 |
|
---|
| 4635 | BspNode *front = interior->GetFront();
|
---|
| 4636 | BspNode *back = interior->GetBack();
|
---|
[649] | 4637 |
|
---|
[752] | 4638 |
|
---|
| 4639 | ObjectPvs frontPvs, backPvs;
|
---|
| 4640 |
|
---|
| 4641 | //-- recursivly compute child hierarchies
|
---|
[650] | 4642 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4643 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4644 |
|
---|
[752] | 4645 |
|
---|
| 4646 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4647 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4648 |
|
---|
| 4649 | volume += backVc->GetVolume();
|
---|
| 4650 | volume += frontVc->GetVolume();
|
---|
| 4651 |
|
---|
| 4652 | viewCellInterior->SetVolume(volume);
|
---|
| 4653 |
|
---|
| 4654 | return viewCellInterior;
|
---|
[609] | 4655 | }
|
---|
| 4656 |
|
---|
| 4657 |
|
---|
[490] | 4658 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4659 | {
|
---|
| 4660 | if (!ViewCellsConstructed())
|
---|
| 4661 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4662 |
|
---|
| 4663 | // TODO: set reasonable limit
|
---|
| 4664 | const int limit = 20;
|
---|
| 4665 |
|
---|
| 4666 | for (int i = 0; i < limit; ++ i)
|
---|
| 4667 | {
|
---|
[542] | 4668 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4669 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4670 | {
|
---|
| 4671 | return true;
|
---|
| 4672 | }
|
---|
| 4673 | }
|
---|
[997] | 4674 |
|
---|
[490] | 4675 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4676 | return false;
|
---|
| 4677 | }
|
---|
| 4678 |
|
---|
| 4679 |
|
---|
| 4680 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4681 | {
|
---|
[1551] | 4682 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4683 | // validy update in preprocessor for all managers)
|
---|
| 4684 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4685 |
|
---|
[1551] | 4686 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4687 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4688 | }
|
---|
| 4689 |
|
---|
| 4690 |
|
---|
[442] | 4691 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4692 | const VssRayContainer &sampleRays)
|
---|
[442] | 4693 | {
|
---|
| 4694 | if (!ViewCellsConstructed())
|
---|
| 4695 | return;
|
---|
| 4696 |
|
---|
[485] | 4697 | VssRayContainer visRays;
|
---|
| 4698 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4699 |
|
---|
[1551] | 4700 | if (1)
|
---|
[1047] | 4701 | {
|
---|
[1416] | 4702 | //////////////////
|
---|
| 4703 | //-- export final view cell partition
|
---|
| 4704 |
|
---|
[1020] | 4705 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4706 |
|
---|
[442] | 4707 | if (exporter)
|
---|
| 4708 | {
|
---|
[580] | 4709 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4710 | if (0)
|
---|
[1563] | 4711 | { // export view space box
|
---|
[542] | 4712 | exporter->SetWireframe();
|
---|
| 4713 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4714 | exporter->SetFilled();
|
---|
| 4715 | }
|
---|
| 4716 |
|
---|
[1052] | 4717 | Material m;
|
---|
| 4718 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4719 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4720 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4721 |
|
---|
| 4722 | exporter->SetForcedMaterial(m);
|
---|
| 4723 |
|
---|
[1563] | 4724 | if (1 && mExportGeometry)
|
---|
[542] | 4725 | {
|
---|
[485] | 4726 | exporter->ExportGeometry(objects);
|
---|
[542] | 4727 | }
|
---|
[489] | 4728 |
|
---|
[1047] | 4729 | if (0 && mExportRays)
|
---|
[489] | 4730 | {
|
---|
[1052] | 4731 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4732 | }
|
---|
[1760] | 4733 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1020] | 4734 |
|
---|
[442] | 4735 | delete exporter;
|
---|
[580] | 4736 | cout << "finished" << endl;
|
---|
[442] | 4737 | }
|
---|
[557] | 4738 | }
|
---|
[503] | 4739 |
|
---|
[1551] | 4740 | ////////////////
|
---|
[442] | 4741 | //-- visualization of the BSP splits
|
---|
[1551] | 4742 |
|
---|
[442] | 4743 | bool exportSplits = false;
|
---|
[1004] | 4744 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4745 |
|
---|
[442] | 4746 | if (exportSplits)
|
---|
| 4747 | {
|
---|
| 4748 | cout << "exporting splits ... ";
|
---|
[485] | 4749 | ExportSplits(objects, visRays);
|
---|
[442] | 4750 | cout << "finished" << endl;
|
---|
| 4751 | }
|
---|
| 4752 |
|
---|
[1551] | 4753 | ////////
|
---|
[542] | 4754 | //-- export single view cells
|
---|
[1570] | 4755 |
|
---|
| 4756 | int leafOut;
|
---|
| 4757 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4758 | const int raysOut = 100;
|
---|
| 4759 |
|
---|
| 4760 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4761 | }
|
---|
| 4762 |
|
---|
[503] | 4763 |
|
---|
[485] | 4764 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4765 | const VssRayContainer &rays)
|
---|
[442] | 4766 | {
|
---|
| 4767 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4768 |
|
---|
[503] | 4769 | if (exporter)
|
---|
| 4770 | {
|
---|
| 4771 | Material m;
|
---|
[442] | 4772 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4773 | exporter->SetForcedMaterial(m);
|
---|
| 4774 | exporter->SetWireframe();
|
---|
[503] | 4775 |
|
---|
[448] | 4776 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4777 |
|
---|
| 4778 | // take forced material, else big scenes cannot be viewed
|
---|
| 4779 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4780 | exporter->SetForcedMaterial(m);
|
---|
| 4781 | exporter->SetFilled();
|
---|
| 4782 |
|
---|
| 4783 | exporter->ResetForcedMaterial();
|
---|
[503] | 4784 |
|
---|
[442] | 4785 | // export rays
|
---|
[485] | 4786 | if (mExportRays)
|
---|
[1545] | 4787 | {
|
---|
[485] | 4788 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4789 | }
|
---|
[503] | 4790 |
|
---|
[485] | 4791 | if (mExportGeometry)
|
---|
[1545] | 4792 | {
|
---|
[442] | 4793 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4794 | }
|
---|
[442] | 4795 | delete exporter;
|
---|
| 4796 | }
|
---|
| 4797 | }
|
---|
| 4798 |
|
---|
[503] | 4799 |
|
---|
[1570] | 4800 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4801 | const int maxViewCells,
|
---|
| 4802 | const bool sortViewCells,
|
---|
| 4803 | const bool exportPvs,
|
---|
| 4804 | const bool exportRays,
|
---|
| 4805 | const int maxRays,
|
---|
| 4806 | const string prefix,
|
---|
| 4807 | VssRayContainer *visRays)
|
---|
| 4808 | {
|
---|
[694] | 4809 | if (sortViewCells)
|
---|
[801] | 4810 | {
|
---|
[1570] | 4811 | // sort view cells to visualize the largest view cells
|
---|
[1789] | 4812 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[801] | 4813 | }
|
---|
| 4814 |
|
---|
[1566] | 4815 | //////////
|
---|
[1570] | 4816 | //-- some view cells for output
|
---|
[483] | 4817 |
|
---|
[1570] | 4818 | ViewCell::NewMail();
|
---|
| 4819 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 4820 |
|
---|
[478] | 4821 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4822 | {
|
---|
[478] | 4823 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4824 |
|
---|
[1570] | 4825 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 4826 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 4827 |
|
---|
[1570] | 4828 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 4829 | continue;
|
---|
| 4830 |
|
---|
| 4831 | vc->Mail();
|
---|
| 4832 |
|
---|
[801] | 4833 | ObjectPvs pvs;
|
---|
| 4834 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4835 |
|
---|
[1570] | 4836 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 4837 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4838 |
|
---|
[1709] | 4839 | const float pvsCost = mViewCellsTree->GetPvsCost(vc);
|
---|
| 4840 | cout << "view cell " << vc->GetId() << ": pvs cost=" << pvsCost << endl;
|
---|
[587] | 4841 |
|
---|
[1570] | 4842 | if (exportRays)
|
---|
[442] | 4843 | {
|
---|
[1566] | 4844 | ////////////
|
---|
| 4845 | //-- export rays piercing this view cell
|
---|
| 4846 |
|
---|
| 4847 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 4848 | VssRayContainer vcRays;
|
---|
| 4849 | VssRayContainer collectRays;
|
---|
[639] | 4850 |
|
---|
[1566] | 4851 | // collect initial view cells
|
---|
[1551] | 4852 | ViewCellContainer leaves;
|
---|
| 4853 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 4854 |
|
---|
[1551] | 4855 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 4856 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 4857 | {
|
---|
[1551] | 4858 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 4859 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4860 |
|
---|
[1551] | 4861 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4862 | {
|
---|
[1551] | 4863 | collectRays.push_back(*rit);
|
---|
[639] | 4864 | }
|
---|
[1551] | 4865 | }
|
---|
[801] | 4866 |
|
---|
[1570] | 4867 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 4868 |
|
---|
[1566] | 4869 | // prepare some rays for output
|
---|
[1551] | 4870 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4871 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4872 | {
|
---|
[1566] | 4873 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 4874 |
|
---|
| 4875 | if (p < raysOut)
|
---|
[1566] | 4876 | {
|
---|
[1551] | 4877 | vcRays.push_back(*rit);
|
---|
[1566] | 4878 | }
|
---|
[639] | 4879 | }
|
---|
| 4880 |
|
---|
[1551] | 4881 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4882 | }
|
---|
[639] | 4883 |
|
---|
[1416] | 4884 | ////////////////
|
---|
[1020] | 4885 | //-- export view cell geometry
|
---|
[1416] | 4886 |
|
---|
[478] | 4887 | exporter->SetWireframe();
|
---|
[442] | 4888 |
|
---|
[478] | 4889 | Material m;//= RandomMaterial();
|
---|
| 4890 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4891 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4892 |
|
---|
[1416] | 4893 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4894 | exporter->SetFilled();
|
---|
[503] | 4895 |
|
---|
[1570] | 4896 | if (exportPvs)
|
---|
[574] | 4897 | {
|
---|
[801] | 4898 | Intersectable::NewMail();
|
---|
[1570] | 4899 |
|
---|
[1742] | 4900 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 4901 |
|
---|
[1570] | 4902 | cout << endl;
|
---|
[1742] | 4903 |
|
---|
[639] | 4904 | // output PVS of view cell
|
---|
[1742] | 4905 | while (pit.HasMoreEntries())
|
---|
| 4906 | {
|
---|
| 4907 | ObjectPvsEntry entry = pit.Next();
|
---|
| 4908 | Intersectable *intersect = entry.mObject;
|
---|
[1570] | 4909 |
|
---|
[639] | 4910 | if (!intersect->Mailed())
|
---|
| 4911 | {
|
---|
[1570] | 4912 | intersect->Mail();
|
---|
[1571] | 4913 |
|
---|
[643] | 4914 | m = RandomMaterial();
|
---|
| 4915 | exporter->SetForcedMaterial(m);
|
---|
[639] | 4916 | exporter->ExportIntersectable(intersect);
|
---|
| 4917 | }
|
---|
[503] | 4918 | }
|
---|
[1570] | 4919 | cout << endl;
|
---|
[442] | 4920 | }
|
---|
[801] | 4921 |
|
---|
[478] | 4922 | DEL_PTR(exporter);
|
---|
| 4923 | cout << "finished" << endl;
|
---|
[442] | 4924 | }
|
---|
| 4925 | }
|
---|
| 4926 |
|
---|
| 4927 |
|
---|
[1021] | 4928 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4929 | {
|
---|
[1021] | 4930 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4931 |
|
---|
[1021] | 4932 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4933 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4934 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4935 | const Vector3 width = Vector3(w);
|
---|
| 4936 |
|
---|
| 4937 | PrVs testPrVs;
|
---|
| 4938 |
|
---|
| 4939 | if (exporter)
|
---|
| 4940 | {
|
---|
| 4941 | ViewCellContainer viewCells;
|
---|
| 4942 |
|
---|
| 4943 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4944 |
|
---|
[1021] | 4945 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4946 |
|
---|
[1021] | 4947 | exporter->SetWireframe();
|
---|
[482] | 4948 |
|
---|
[1021] | 4949 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4950 | exporter->ExportBox(tbox);
|
---|
| 4951 |
|
---|
| 4952 | exporter->SetFilled();
|
---|
[503] | 4953 |
|
---|
[1021] | 4954 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4955 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4956 |
|
---|
[1021] | 4957 | //exporter->ResetForcedMaterial();
|
---|
| 4958 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4959 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4960 |
|
---|
[1021] | 4961 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4962 | exporter->ExportGeometry(objects);
|
---|
[547] | 4963 |
|
---|
[1021] | 4964 | delete exporter;
|
---|
[482] | 4965 | }
|
---|
[1021] | 4966 | }
|
---|
[482] | 4967 |
|
---|
[547] | 4968 |
|
---|
[1021] | 4969 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4970 | ViewCellContainer &viewCells) const
|
---|
| 4971 | {
|
---|
| 4972 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4973 | }
|
---|
| 4974 |
|
---|
| 4975 |
|
---|
[1021] | 4976 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4977 | const Vector3 &termination,
|
---|
| 4978 | ViewCellContainer &viewcells)
|
---|
| 4979 | {
|
---|
| 4980 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4981 | }
|
---|
| 4982 |
|
---|
| 4983 |
|
---|
[979] | 4984 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4985 | {
|
---|
| 4986 | int numSamples;
|
---|
[1161] | 4987 |
|
---|
[1004] | 4988 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4989 | cout << "samples" << numSamples << endl;
|
---|
| 4990 |
|
---|
| 4991 | vector<RenderCostSample> samples;
|
---|
| 4992 |
|
---|
[1145] | 4993 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4994 | return;
|
---|
| 4995 |
|
---|
[1145] | 4996 | //start the view point queries
|
---|
[979] | 4997 | long startTime = GetTime();
|
---|
| 4998 | cout << "starting sampling of render cost ... ";
|
---|
| 4999 |
|
---|
[1145] | 5000 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 5001 |
|
---|
| 5002 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 5003 |
|
---|
| 5004 |
|
---|
[1161] | 5005 | // for each sample:
|
---|
| 5006 | // find view cells associated with the samples
|
---|
| 5007 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 5008 | //
|
---|
[1161] | 5009 | // for each view cell:
|
---|
| 5010 | // compute difference point sampled pvs - view cell pvs
|
---|
| 5011 | // export geometry with color coded pvs difference
|
---|
| 5012 |
|
---|
| 5013 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 5014 |
|
---|
[979] | 5015 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 5016 |
|
---|
[1161] | 5017 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 5018 | {
|
---|
| 5019 | RenderCostSample sample = *rit;
|
---|
| 5020 |
|
---|
| 5021 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 5022 |
|
---|
[1161] | 5023 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 5024 |
|
---|
| 5025 | if (it == sampleMap.end())
|
---|
| 5026 | {
|
---|
| 5027 | sampleMap[vc] = sample.mPvs;
|
---|
| 5028 | }
|
---|
| 5029 | else
|
---|
| 5030 | {
|
---|
[1740] | 5031 | (*it).second.MergeInPlace(sample.mPvs);
|
---|
[1161] | 5032 | }
|
---|
| 5033 | }
|
---|
| 5034 |
|
---|
| 5035 | // visualize the view cells
|
---|
| 5036 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 5037 |
|
---|
| 5038 | Material m;//= RandomMaterial();
|
---|
| 5039 |
|
---|
| 5040 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 5041 | {
|
---|
| 5042 | ViewCell *vc = (*vit).first;
|
---|
| 5043 |
|
---|
| 5044 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 5045 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 5046 |
|
---|
[1168] | 5047 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 5048 | m.mDiffuseColor.b = 1.0f;
|
---|
| 5049 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 5050 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 5051 |
|
---|
[1415] | 5052 | /* // counting the pvss
|
---|
| 5053 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 5054 | {
|
---|
| 5055 | RenderCostSample sample = *rit;
|
---|
| 5056 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 5057 |
|
---|
[1415] | 5058 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 5059 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 5060 |
|
---|
[1415] | 5061 | DEL_PTR(hMesh);
|
---|
| 5062 | }
|
---|
| 5063 | */
|
---|
[979] | 5064 | }
|
---|
| 5065 | }
|
---|
| 5066 |
|
---|
| 5067 |
|
---|
[580] | 5068 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 5069 | ViewCell *vc,
|
---|
| 5070 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5071 | const AxisAlignedPlane *clipPlane
|
---|
| 5072 | ) const
|
---|
[482] | 5073 | {
|
---|
[660] | 5074 | if (clipPlane)
|
---|
[591] | 5075 | {
|
---|
[1047] | 5076 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 5077 |
|
---|
[591] | 5078 | ViewCellContainer leaves;
|
---|
| 5079 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5080 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5081 |
|
---|
| 5082 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5083 | {
|
---|
| 5084 | BspNodeGeometry geom;
|
---|
| 5085 | BspNodeGeometry front;
|
---|
| 5086 | BspNodeGeometry back;
|
---|
| 5087 |
|
---|
[1551] | 5088 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 5089 |
|
---|
[1052] | 5090 | const float eps = 0.0001f;
|
---|
[1047] | 5091 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 5092 |
|
---|
[710] | 5093 | if (cf == -1)
|
---|
[682] | 5094 | {
|
---|
| 5095 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 5096 | }
|
---|
[710] | 5097 | else if (cf == 0)
|
---|
[684] | 5098 | {
|
---|
[682] | 5099 | geom.SplitGeometry(front,
|
---|
| 5100 | back,
|
---|
[1047] | 5101 | plane,
|
---|
[682] | 5102 | mViewSpaceBox,
|
---|
[710] | 5103 | eps);
|
---|
[801] | 5104 |
|
---|
[683] | 5105 | if (back.Valid())
|
---|
| 5106 | {
|
---|
[682] | 5107 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 5108 | }
|
---|
[684] | 5109 | }
|
---|
[591] | 5110 | }
|
---|
| 5111 | }
|
---|
| 5112 | else
|
---|
| 5113 | {
|
---|
[801] | 5114 | // export mesh if available
|
---|
[1001] | 5115 | // TODO: some bug here?
|
---|
[1563] | 5116 | if (1 && vc->GetMesh())
|
---|
[801] | 5117 | {
|
---|
| 5118 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 5119 | }
|
---|
| 5120 | else
|
---|
[1001] | 5121 | {
|
---|
[801] | 5122 | BspNodeGeometry geom;
|
---|
| 5123 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 5124 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 5125 | }
|
---|
[591] | 5126 | }
|
---|
[482] | 5127 | }
|
---|
| 5128 |
|
---|
| 5129 |
|
---|
| 5130 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 5131 | {
|
---|
[580] | 5132 | ViewCellContainer leaves;
|
---|
| 5133 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 5134 |
|
---|
| 5135 | int maxDist = 0;
|
---|
[580] | 5136 |
|
---|
[482] | 5137 | // compute max height difference
|
---|
[580] | 5138 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 5139 | {
|
---|
[580] | 5140 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 5141 | {
|
---|
[1551] | 5142 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 5143 |
|
---|
[1001] | 5144 | if (i != j)
|
---|
| 5145 | {
|
---|
[1551] | 5146 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 5147 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 5148 |
|
---|
| 5149 | if (dist > maxDist)
|
---|
| 5150 | maxDist = dist;
|
---|
| 5151 | }
|
---|
[482] | 5152 | }
|
---|
| 5153 | }
|
---|
[580] | 5154 |
|
---|
[492] | 5155 | return maxDist;
|
---|
| 5156 | }
|
---|
[482] | 5157 |
|
---|
[492] | 5158 |
|
---|
[879] | 5159 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 5160 | {
|
---|
[1021] | 5161 | if (!ViewCellsConstructed())
|
---|
[508] | 5162 | return NULL;
|
---|
[572] | 5163 |
|
---|
| 5164 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5165 | return NULL;
|
---|
| 5166 |
|
---|
[879] | 5167 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 5168 | }
|
---|
[503] | 5169 |
|
---|
| 5170 |
|
---|
| 5171 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5172 | {
|
---|
| 5173 | BspNodeGeometry geom;
|
---|
[590] | 5174 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 5175 |
|
---|
[1001] | 5176 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 5177 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 5178 |
|
---|
[503] | 5179 | vc->SetMesh(mesh);
|
---|
| 5180 | }
|
---|
[508] | 5181 |
|
---|
| 5182 |
|
---|
[532] | 5183 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5184 | {
|
---|
[535] | 5185 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 5186 | }
|
---|
[551] | 5187 |
|
---|
| 5188 |
|
---|
[587] | 5189 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5190 | const bool createMesh)
|
---|
[551] | 5191 | {
|
---|
| 5192 | float area = 0;
|
---|
| 5193 | float volume = 0;
|
---|
| 5194 |
|
---|
[580] | 5195 | ViewCellContainer leaves;
|
---|
[582] | 5196 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 5197 |
|
---|
| 5198 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5199 |
|
---|
[693] | 5200 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 5201 | {
|
---|
| 5202 | BspNodeGeometry geom;
|
---|
[1551] | 5203 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 5204 |
|
---|
[719] | 5205 | const float lVol = geom.GetVolume();
|
---|
| 5206 | const float lArea = geom.GetArea();
|
---|
[693] | 5207 |
|
---|
| 5208 | area += lArea;
|
---|
| 5209 | volume += lVol;
|
---|
| 5210 |
|
---|
[1616] | 5211 | if (createMesh)
|
---|
| 5212 | CreateMesh(*it);
|
---|
[551] | 5213 | }
|
---|
| 5214 |
|
---|
| 5215 | viewCell->SetVolume(volume);
|
---|
| 5216 | viewCell->SetArea(area);
|
---|
[563] | 5217 | }
|
---|
[575] | 5218 |
|
---|
| 5219 |
|
---|
[693] | 5220 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 5221 | {
|
---|
| 5222 | ViewCellContainer leaves;
|
---|
| 5223 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5224 |
|
---|
| 5225 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5226 |
|
---|
| 5227 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 5228 | float subdivVol = 0;
|
---|
| 5229 | float newVol = 0;
|
---|
| 5230 |
|
---|
| 5231 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5232 | {
|
---|
| 5233 | BspNodeGeometry geom;
|
---|
[1551] | 5234 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 5235 |
|
---|
| 5236 | const float lVol = geom.GetVolume();
|
---|
| 5237 |
|
---|
| 5238 | newVol += lVol;
|
---|
| 5239 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 5240 |
|
---|
[704] | 5241 | float thres = 0.9f;
|
---|
[697] | 5242 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 5243 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 5244 | }
|
---|
| 5245 |
|
---|
| 5246 | Debug << "exact volume: " << vol << endl;
|
---|
| 5247 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 5248 | Debug << "new volume: " << newVol << endl;
|
---|
| 5249 | }
|
---|
| 5250 |
|
---|
| 5251 |
|
---|
[577] | 5252 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5253 | {
|
---|
| 5254 | // TODO: do I still need this here?
|
---|
[590] | 5255 | if (0)
|
---|
[693] | 5256 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 5257 | }
|
---|
[575] | 5258 |
|
---|
[1021] | 5259 |
|
---|
| 5260 |
|
---|
| 5261 | /**************************************************************************/
|
---|
[1047] | 5262 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 5263 | /**************************************************************************/
|
---|
| 5264 |
|
---|
| 5265 |
|
---|
[1789] | 5266 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
| 5267 | const string &hierarchyType)
|
---|
[1740] | 5268 | : ViewCellsManager(vcTree)
|
---|
| 5269 | {
|
---|
| 5270 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
| 5271 |
|
---|
| 5272 | mHierarchyManager = CreateHierarchyManager(hierarchyType);
|
---|
| 5273 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5274 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
| 5275 | }
|
---|
| 5276 |
|
---|
| 5277 |
|
---|
[1278] | 5278 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 5279 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 5280 | {
|
---|
[1640] | 5281 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
[1106] | 5282 |
|
---|
[1278] | 5283 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 5284 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 5285 | }
|
---|
[859] | 5286 |
|
---|
[1789] | 5287 |
|
---|
[1743] | 5288 | Intersectable *
|
---|
| 5289 | VspOspViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
|
---|
| 5290 | {
|
---|
[1761] | 5291 | #if USE_KD_PVS
|
---|
| 5292 | return ViewCellsManager::GetIntersectable(ray, isTermination);
|
---|
| 5293 | #else
|
---|
[1743] | 5294 | return mHierarchyManager->GetIntersectable(ray, isTermination);
|
---|
[1761] | 5295 | #endif
|
---|
[1743] | 5296 | }
|
---|
[859] | 5297 |
|
---|
[1789] | 5298 |
|
---|
[1740] | 5299 | HierarchyManager *VspOspViewCellsManager::CreateHierarchyManager(const string &hierarchyType)
|
---|
| 5300 | {
|
---|
| 5301 | HierarchyManager *hierarchyManager;
|
---|
| 5302 |
|
---|
| 5303 | if (strcmp(hierarchyType.c_str(), "osp") == 0)
|
---|
| 5304 | {
|
---|
| 5305 | Debug << "hierarchy manager: osp" << endl;
|
---|
| 5306 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
| 5307 | }
|
---|
| 5308 | else if (strcmp(hierarchyType.c_str(), "bvh") == 0)
|
---|
| 5309 | {
|
---|
| 5310 | Debug << "hierarchy manager: bvh" << endl;
|
---|
| 5311 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
| 5312 | }
|
---|
| 5313 | else // only view space partition
|
---|
| 5314 | {
|
---|
| 5315 | Debug << "hierarchy manager: obj" << endl;
|
---|
| 5316 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
| 5317 | }
|
---|
| 5318 |
|
---|
| 5319 | return hierarchyManager;
|
---|
| 5320 | }
|
---|
| 5321 |
|
---|
| 5322 |
|
---|
[1021] | 5323 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 5324 | {
|
---|
[1740] | 5325 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 5326 | }
|
---|
| 5327 |
|
---|
| 5328 |
|
---|
| 5329 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 5330 | {
|
---|
| 5331 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 5332 | }
|
---|
| 5333 |
|
---|
| 5334 |
|
---|
| 5335 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 5336 | {
|
---|
| 5337 | // view cells tree constructed
|
---|
| 5338 | if (!ViewCellsTreeConstructed())
|
---|
| 5339 | {
|
---|
[1278] | 5340 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 5341 | }
|
---|
| 5342 | else
|
---|
| 5343 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 5344 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 5345 | }
|
---|
| 5346 | }
|
---|
| 5347 |
|
---|
| 5348 |
|
---|
| 5349 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 5350 | {
|
---|
[1278] | 5351 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 5352 | }
|
---|
| 5353 |
|
---|
| 5354 |
|
---|
| 5355 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 5356 | {
|
---|
| 5357 | return new VspViewCell(mesh);
|
---|
| 5358 | }
|
---|
| 5359 |
|
---|
| 5360 |
|
---|
| 5361 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 5362 | const VssRayContainer &rays)
|
---|
| 5363 | {
|
---|
| 5364 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 5365 |
|
---|
[1074] | 5366 | // skip rest if view cells were already constructed
|
---|
[1021] | 5367 | if (ViewCellsConstructed())
|
---|
| 5368 | return 0;
|
---|
| 5369 |
|
---|
| 5370 | int sampleContributions = 0;
|
---|
| 5371 | VssRayContainer sampleRays;
|
---|
| 5372 |
|
---|
| 5373 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 5374 |
|
---|
| 5375 | VssRayContainer constructionRays;
|
---|
| 5376 | VssRayContainer savedRays;
|
---|
| 5377 |
|
---|
| 5378 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 5379 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 5380 |
|
---|
| 5381 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 5382 |
|
---|
[1421] | 5383 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 5384 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 5385 |
|
---|
[1293] | 5386 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 5387 |
|
---|
[1576] | 5388 | #if TEST_EVALUATION
|
---|
| 5389 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 5390 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 5391 | {
|
---|
| 5392 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 5393 | }
|
---|
| 5394 | #endif
|
---|
| 5395 |
|
---|
[1545] | 5396 | /////////////////////////
|
---|
[1444] | 5397 | //-- print satistics for subdivision and view cells
|
---|
| 5398 |
|
---|
[1421] | 5399 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 5400 |
|
---|
[1444] | 5401 | ResetViewCells();
|
---|
| 5402 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 5403 |
|
---|
[1545] | 5404 | //////////////
|
---|
[1444] | 5405 | //-- recast rest of rays
|
---|
| 5406 |
|
---|
[1286] | 5407 | const long startTime = GetTime();
|
---|
[1021] | 5408 | cout << "Computing remaining ray contributions ... ";
|
---|
| 5409 |
|
---|
| 5410 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 5411 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 5412 |
|
---|
[1415] | 5413 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 5414 | << " secs" << endl;
|
---|
| 5415 |
|
---|
| 5416 | if (0)
|
---|
[1545] | 5417 | { // real meshes are constructed at this stage
|
---|
[1021] | 5418 | cout << "finalizing view cells ... ";
|
---|
| 5419 | FinalizeViewCells(true);
|
---|
| 5420 | cout << "finished" << endl;
|
---|
| 5421 | }
|
---|
| 5422 |
|
---|
| 5423 | return sampleContributions;
|
---|
| 5424 | }
|
---|
| 5425 |
|
---|
| 5426 |
|
---|
| 5427 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 5428 | const VssRayContainer &rays)
|
---|
| 5429 | {
|
---|
| 5430 | if (!ViewCellsConstructed())
|
---|
| 5431 | {
|
---|
| 5432 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 5433 | return 0;
|
---|
| 5434 | }
|
---|
| 5435 |
|
---|
[1418] | 5436 | // if view cells were already constructed before post processing step
|
---|
| 5437 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 5438 | if (mViewCellsFinished)
|
---|
| 5439 | {
|
---|
| 5440 | FinalizeViewCells(true);
|
---|
| 5441 | EvaluateViewCellsStats();
|
---|
| 5442 |
|
---|
| 5443 | return 0;
|
---|
| 5444 | }
|
---|
| 5445 |
|
---|
| 5446 | // check if new view cells turned invalid
|
---|
| 5447 | int minPvs, maxPvs;
|
---|
| 5448 |
|
---|
| 5449 | if (0)
|
---|
| 5450 | {
|
---|
| 5451 | minPvs = mMinPvsSize;
|
---|
| 5452 | maxPvs = mMaxPvsSize;
|
---|
| 5453 | }
|
---|
| 5454 | else
|
---|
| 5455 | {
|
---|
[1414] | 5456 | // problem matt: why did I start here from zero?
|
---|
| 5457 | minPvs = 0;
|
---|
[1021] | 5458 | maxPvs = mMaxPvsSize;
|
---|
| 5459 | }
|
---|
| 5460 |
|
---|
| 5461 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5462 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5463 |
|
---|
| 5464 | SetValidity(minPvs, maxPvs);
|
---|
| 5465 |
|
---|
| 5466 |
|
---|
[1414] | 5467 | // area is not up to date, has to be recomputed
|
---|
[1021] | 5468 | mTotalAreaValid = false;
|
---|
| 5469 | VssRayContainer postProcessRays;
|
---|
| 5470 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 5471 |
|
---|
| 5472 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 5473 |
|
---|
| 5474 |
|
---|
| 5475 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 5476 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 5477 | mViewCellsTree->SetRoot(root);
|
---|
| 5478 |
|
---|
[1696] | 5479 | //////////////////////////
|
---|
| 5480 | //-- update pvs up to the root of the hierarchy
|
---|
[1418] | 5481 |
|
---|
[1021] | 5482 | ObjectPvs pvs;
|
---|
| 5483 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5484 |
|
---|
[1414] | 5485 |
|
---|
[1418] | 5486 | //////////////////////
|
---|
[1021] | 5487 | //-- render simulation after merge + refine
|
---|
[1414] | 5488 |
|
---|
[1415] | 5489 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 5490 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5491 | SimulationStatistics ss;
|
---|
| 5492 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 5493 | cout << ss << endl;
|
---|
[1414] | 5494 |
|
---|
[1486] | 5495 |
|
---|
[1586] | 5496 | ///////////
|
---|
[1021] | 5497 | //-- compression
|
---|
[1262] | 5498 |
|
---|
[1021] | 5499 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 5500 | {
|
---|
[1586] | 5501 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 5502 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 5503 |
|
---|
[1021] | 5504 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 5505 |
|
---|
[1586] | 5506 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 5507 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5508 | }
|
---|
[1021] | 5509 |
|
---|
[1486] | 5510 | /////////////
|
---|
| 5511 | //-- some tasks still to do on the view cells:
|
---|
| 5512 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1696] | 5513 |
|
---|
[1021] | 5514 | if (1) FinalizeViewCells(true);
|
---|
| 5515 |
|
---|
| 5516 | return 0;
|
---|
[859] | 5517 | }
|
---|
| 5518 |
|
---|
[1021] | 5519 |
|
---|
| 5520 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5521 | {
|
---|
[1021] | 5522 | return VSP_OSP;
|
---|
| 5523 | }
|
---|
[859] | 5524 |
|
---|
[1021] | 5525 |
|
---|
| 5526 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5527 | {
|
---|
| 5528 | // terminate recursion
|
---|
| 5529 | if (root->IsLeaf())
|
---|
| 5530 | {
|
---|
| 5531 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5532 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5533 | return leaf->GetViewCell();
|
---|
| 5534 | }
|
---|
| 5535 |
|
---|
| 5536 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5537 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5538 |
|
---|
| 5539 | // evaluate merge cost for priority traversal
|
---|
[1713] | 5540 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1021] | 5541 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5542 |
|
---|
| 5543 | float volume = 0;
|
---|
| 5544 |
|
---|
| 5545 | VspNode *front = interior->GetFront();
|
---|
| 5546 | VspNode *back = interior->GetBack();
|
---|
| 5547 |
|
---|
| 5548 | ObjectPvs frontPvs, backPvs;
|
---|
| 5549 |
|
---|
[1545] | 5550 | /////////
|
---|
[1021] | 5551 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5552 |
|
---|
[1021] | 5553 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5554 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5555 |
|
---|
| 5556 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5557 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5558 |
|
---|
| 5559 | volume += backVc->GetVolume();
|
---|
| 5560 | volume += frontVc->GetVolume();
|
---|
| 5561 |
|
---|
| 5562 | viewCellInterior->SetVolume(volume);
|
---|
| 5563 |
|
---|
| 5564 | return viewCellInterior;
|
---|
| 5565 | }
|
---|
| 5566 |
|
---|
| 5567 |
|
---|
| 5568 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5569 | {
|
---|
| 5570 | if (!ViewCellsConstructed())
|
---|
| 5571 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5572 |
|
---|
| 5573 | // TODO: set reasonable limit
|
---|
| 5574 | const int limit = 20;
|
---|
| 5575 |
|
---|
| 5576 | for (int i = 0; i < limit; ++ i)
|
---|
| 5577 | {
|
---|
| 5578 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5579 |
|
---|
[1278] | 5580 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5581 | {
|
---|
| 5582 | return true;
|
---|
| 5583 | }
|
---|
[904] | 5584 | }
|
---|
[859] | 5585 |
|
---|
[1021] | 5586 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5587 | return false;
|
---|
[884] | 5588 | }
|
---|
| 5589 |
|
---|
| 5590 |
|
---|
[1027] | 5591 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5592 | ViewCell *vc,
|
---|
[1416] | 5593 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5594 | const AxisAlignedPlane *clipPlane
|
---|
| 5595 | ) const
|
---|
[1027] | 5596 | {
|
---|
| 5597 | ViewCellContainer leaves;
|
---|
| 5598 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5599 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5600 |
|
---|
[1047] | 5601 | Plane3 plane;
|
---|
| 5602 | if (clipPlane)
|
---|
[1418] | 5603 | {
|
---|
| 5604 | // arbitrary plane definition
|
---|
[1047] | 5605 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5606 | }
|
---|
[1047] | 5607 |
|
---|
[1027] | 5608 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5609 | {
|
---|
| 5610 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5611 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5612 |
|
---|
[1416] | 5613 | const AxisAlignedBox3 box =
|
---|
[1551] | 5614 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5615 |
|
---|
[1418] | 5616 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5617 | continue;
|
---|
| 5618 |
|
---|
[1047] | 5619 | if (clipPlane)
|
---|
| 5620 | {
|
---|
| 5621 | if (box.Side(plane) == -1)
|
---|
[1144] | 5622 | {
|
---|
[1047] | 5623 | exporter->ExportBox(box);
|
---|
[1144] | 5624 | }
|
---|
[1047] | 5625 | else if (box.Side(plane) == 0)
|
---|
| 5626 | {
|
---|
[1418] | 5627 | // intersection
|
---|
[1047] | 5628 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5629 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5630 | exporter->ExportBox(bbox);
|
---|
| 5631 | }
|
---|
| 5632 | }
|
---|
| 5633 | else
|
---|
| 5634 | {
|
---|
[1027] | 5635 | exporter->ExportBox(box);
|
---|
[1047] | 5636 | }
|
---|
[1027] | 5637 | }
|
---|
| 5638 | }
|
---|
| 5639 |
|
---|
| 5640 |
|
---|
[1021] | 5641 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5642 | {
|
---|
| 5643 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5644 | // validy update in preprocessor for all managers)
|
---|
| 5645 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5646 |
|
---|
[1021] | 5647 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5648 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5649 | }
|
---|
| 5650 |
|
---|
| 5651 |
|
---|
| 5652 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5653 | const VssRayContainer &sampleRays)
|
---|
[859] | 5654 | {
|
---|
[997] | 5655 | if (!ViewCellsConstructed())
|
---|
| 5656 | return;
|
---|
[1027] | 5657 |
|
---|
[1021] | 5658 | VssRayContainer visRays;
|
---|
| 5659 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5660 |
|
---|
[1633] | 5661 | ////////////
|
---|
| 5662 | //-- export final view cells
|
---|
[1106] | 5663 |
|
---|
[1633] | 5664 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5665 |
|
---|
[1789] | 5666 | //Vector3 scale(0.9f, 0.9f, 0.9f);
|
---|
| 5667 | Vector3 scale(1.0f, 1.0f, 1.0f);
|
---|
| 5668 |
|
---|
[1633] | 5669 | if (exporter)
|
---|
| 5670 | {
|
---|
[1764] | 5671 | if (CLAMP_TO_BOX)
|
---|
| 5672 | {
|
---|
| 5673 | exporter->mClampToBox = true;
|
---|
| 5674 | }
|
---|
| 5675 |
|
---|
[1763] | 5676 | EvaluateViewCellsStats();
|
---|
| 5677 |
|
---|
[1633] | 5678 | const long starttime = GetTime();
|
---|
| 5679 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[1420] | 5680 |
|
---|
[1633] | 5681 | // matt: hack for clamping scene
|
---|
| 5682 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
[1763] | 5683 | bbox.Scale(scale);
|
---|
[1703] | 5684 |
|
---|
[1633] | 5685 | if (1 && mExportRays)
|
---|
| 5686 | {
|
---|
| 5687 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5688 | }
|
---|
| 5689 |
|
---|
[1760] | 5690 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects,
|
---|
| 5691 | CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
[1763] | 5692 |
|
---|
[1764] | 5693 | // hack color code (show pvs size)
|
---|
| 5694 | const int savedColorCode = mColorCode;
|
---|
| 5695 | mColorCode = 1; // export pvs
|
---|
| 5696 |
|
---|
[1763] | 5697 | //ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, mColorCode, GetClipPlane());
|
---|
| 5698 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
[1633] | 5699 |
|
---|
| 5700 | delete exporter;
|
---|
[1760] | 5701 |
|
---|
[1633] | 5702 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5703 | mColorCode = savedColorCode;
|
---|
| 5704 | }
|
---|
| 5705 |
|
---|
[1633] | 5706 | // export final object partition
|
---|
| 5707 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5708 |
|
---|
| 5709 | if (exporter)
|
---|
[1287] | 5710 | {
|
---|
[1764] | 5711 | if (CLAMP_TO_BOX)
|
---|
| 5712 | {
|
---|
| 5713 | exporter->mClampToBox = true;
|
---|
| 5714 | }
|
---|
| 5715 |
|
---|
[1633] | 5716 | const long starttime = GetTime();
|
---|
[1287] | 5717 |
|
---|
[1633] | 5718 | // matt: hack for making visualization smaller in size
|
---|
| 5719 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
[1763] | 5720 | bbox.Scale(scale);
|
---|
[1415] | 5721 |
|
---|
[1633] | 5722 | cout << "exporting object space hierarchy ... ";
|
---|
| 5723 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5724 |
|
---|
| 5725 | delete exporter;
|
---|
| 5726 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5727 | }
|
---|
[1121] | 5728 |
|
---|
[1760] | 5729 | // visualization of the view cells
|
---|
[1763] | 5730 | if (0)
|
---|
[1760] | 5731 | {
|
---|
| 5732 | ExportMergedViewCells(objects);
|
---|
| 5733 | }
|
---|
| 5734 |
|
---|
[1570] | 5735 | // export some view cell
|
---|
[1021] | 5736 | int leafOut;
|
---|
| 5737 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1769] | 5738 |
|
---|
| 5739 | const bool sortViewCells = false;
|
---|
| 5740 | const bool exportPvs = true;
|
---|
| 5741 | const bool exportRays = true;
|
---|
[1570] | 5742 | const int raysOut = 100;
|
---|
[580] | 5743 |
|
---|
[1769] | 5744 | ExportSingleViewCells(objects,
|
---|
| 5745 | leafOut,
|
---|
| 5746 | sortViewCells,
|
---|
| 5747 | exportPvs,
|
---|
| 5748 | exportRays,
|
---|
| 5749 | raysOut,
|
---|
| 5750 | "");
|
---|
[1570] | 5751 | }
|
---|
[1021] | 5752 |
|
---|
| 5753 |
|
---|
[1570] | 5754 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5755 | const int maxViewCells,
|
---|
| 5756 | const bool sortViewCells,
|
---|
| 5757 | const bool exportPvs,
|
---|
| 5758 | const bool exportRays,
|
---|
| 5759 | const int maxRays,
|
---|
| 5760 | const string prefix,
|
---|
| 5761 | VssRayContainer *visRays)
|
---|
| 5762 | {
|
---|
| 5763 | if (sortViewCells)
|
---|
[697] | 5764 | {
|
---|
[1415] | 5765 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1789] | 5766 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
[1021] | 5767 | }
|
---|
| 5768 |
|
---|
[1570] | 5769 | ViewCell::NewMail();
|
---|
| 5770 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 5771 |
|
---|
[1570] | 5772 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 5773 |
|
---|
[1021] | 5774 | for (int i = 0; i < limit; ++ i)
|
---|
| 5775 | {
|
---|
| 5776 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5777 |
|
---|
| 5778 | // largest view cell pvs first of random view cell
|
---|
[1570] | 5779 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 5780 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5781 |
|
---|
[1570] | 5782 | if (vc->Mailed()) // already used
|
---|
| 5783 | continue;
|
---|
| 5784 |
|
---|
| 5785 | vc->Mail();
|
---|
| 5786 |
|
---|
[1021] | 5787 | ObjectPvs pvs;
|
---|
| 5788 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5789 |
|
---|
[1570] | 5790 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 5791 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5792 |
|
---|
[1709] | 5793 | cout << "view cell " << vc->GetId() << ": pvs cost=" << mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[1021] | 5794 |
|
---|
[1570] | 5795 | if (exportPvs)
|
---|
| 5796 | {
|
---|
| 5797 | Material m;
|
---|
[1418] | 5798 |
|
---|
[1570] | 5799 | Intersectable::NewMail();
|
---|
| 5800 |
|
---|
[1742] | 5801 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
| 5802 |
|
---|
[1570] | 5803 | // output PVS of view cell
|
---|
[1742] | 5804 | while (pit.HasMoreEntries())
|
---|
[1570] | 5805 | {
|
---|
[1742] | 5806 | ObjectPvsEntry entry = pit.Next();
|
---|
| 5807 |
|
---|
| 5808 | Intersectable *intersect = entry.mObject;
|
---|
| 5809 |
|
---|
[1570] | 5810 | if (!intersect->Mailed())
|
---|
| 5811 | {
|
---|
| 5812 | m = RandomMaterial();
|
---|
| 5813 | exporter->SetForcedMaterial(m);
|
---|
| 5814 |
|
---|
| 5815 | exporter->ExportIntersectable(intersect);
|
---|
| 5816 | intersect->Mail();
|
---|
| 5817 | }
|
---|
| 5818 | }
|
---|
| 5819 | }
|
---|
| 5820 |
|
---|
| 5821 | if (exportRays)
|
---|
[1021] | 5822 | {
|
---|
[1570] | 5823 | ////////////
|
---|
| 5824 | //-- export the sample rays
|
---|
| 5825 |
|
---|
[1021] | 5826 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 5827 | VssRayContainer vcRays;
|
---|
| 5828 | VssRayContainer collectRays;
|
---|
[1021] | 5829 |
|
---|
[1570] | 5830 | // collect intial view cells
|
---|
| 5831 | ViewCellContainer leaves;
|
---|
| 5832 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 5833 |
|
---|
[1570] | 5834 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 5835 |
|
---|
[1570] | 5836 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5837 | {
|
---|
| 5838 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5839 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5840 |
|
---|
| 5841 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 5842 | {
|
---|
[1570] | 5843 | collectRays.push_back(*rit);
|
---|
[1021] | 5844 | }
|
---|
[1570] | 5845 | }
|
---|
[1021] | 5846 |
|
---|
[1570] | 5847 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 5848 |
|
---|
[1570] | 5849 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 5850 |
|
---|
[1570] | 5851 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5852 | {
|
---|
| 5853 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5854 |
|
---|
| 5855 | if (p < raysOut)
|
---|
| 5856 | vcRays.push_back(*rit);
|
---|
[1021] | 5857 | }
|
---|
[1570] | 5858 |
|
---|
| 5859 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 5860 | }
|
---|
[1570] | 5861 |
|
---|
| 5862 |
|
---|
[1415] | 5863 | /////////////////
|
---|
[1021] | 5864 | //-- export view cell geometry
|
---|
[1121] | 5865 |
|
---|
[697] | 5866 | exporter->SetWireframe();
|
---|
| 5867 |
|
---|
[1416] | 5868 | Material m;
|
---|
[1021] | 5869 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5870 | exporter->SetForcedMaterial(m);
|
---|
| 5871 |
|
---|
[1416] | 5872 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5873 | exporter->SetFilled();
|
---|
| 5874 |
|
---|
[1021] | 5875 | DEL_PTR(exporter);
|
---|
| 5876 | cout << "finished" << endl;
|
---|
[697] | 5877 | }
|
---|
[1021] | 5878 |
|
---|
[1570] | 5879 | cout << endl;
|
---|
[697] | 5880 | }
|
---|
| 5881 |
|
---|
| 5882 |
|
---|
[1021] | 5883 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5884 | ViewCellContainer &viewCells) const
|
---|
| 5885 | {
|
---|
[1278] | 5886 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5887 | }
|
---|
[580] | 5888 |
|
---|
[1021] | 5889 |
|
---|
| 5890 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5891 | const Vector3 &termination,
|
---|
| 5892 | ViewCellContainer &viewcells)
|
---|
| 5893 | {
|
---|
[1278] | 5894 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5895 | }
|
---|
| 5896 |
|
---|
| 5897 |
|
---|
| 5898 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5899 | const bool exportPvs,
|
---|
| 5900 | const ObjectContainer &objects)
|
---|
| 5901 | {
|
---|
| 5902 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5903 | return false;
|
---|
| 5904 |
|
---|
[1415] | 5905 | const long starttime = GetTime();
|
---|
[1021] | 5906 | cout << "exporting view cells to xml ... ";
|
---|
| 5907 |
|
---|
[1201] | 5908 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5909 |
|
---|
| 5910 | // for output we need unique ids for each view cell
|
---|
| 5911 | CreateUniqueViewCellIds();
|
---|
| 5912 |
|
---|
| 5913 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5914 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5915 |
|
---|
[1580] | 5916 | if (exportPvs)
|
---|
| 5917 | {
|
---|
| 5918 | ///////////////
|
---|
| 5919 | //-- export bounding boxes
|
---|
| 5920 | //-- The bounding boxes are used to identify
|
---|
| 5921 | //-- the objects in the rendering engine
|
---|
[1614] | 5922 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 5923 | }
|
---|
[1021] | 5924 |
|
---|
[1415] | 5925 | //////////////////////////
|
---|
[1021] | 5926 | //-- export the view cells and the pvs
|
---|
| 5927 |
|
---|
| 5928 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5929 |
|
---|
| 5930 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5931 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5932 | stream << "</ViewCells>" << endl;
|
---|
| 5933 |
|
---|
[1415] | 5934 | //////////////////////
|
---|
[1201] | 5935 | //-- export the view space hierarchy
|
---|
[1021] | 5936 |
|
---|
[1262] | 5937 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5938 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5939 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5940 |
|
---|
[1278] | 5941 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5942 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5943 |
|
---|
[1415] | 5944 | //////////////////////
|
---|
[1201] | 5945 | //-- export the object space partition
|
---|
| 5946 |
|
---|
[1278] | 5947 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5948 |
|
---|
[1201] | 5949 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5950 | stream.close();
|
---|
[1201] | 5951 |
|
---|
[1415] | 5952 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5953 | return true;
|
---|
| 5954 | }
|
---|
| 5955 |
|
---|
| 5956 |
|
---|
| 5957 |
|
---|
[1027] | 5958 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5959 | const bool active) const
|
---|
[1021] | 5960 | {
|
---|
| 5961 | if (!ViewCellsConstructed())
|
---|
| 5962 | return NULL;
|
---|
[1588] | 5963 |
|
---|
[1021] | 5964 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5965 | return NULL;
|
---|
[1588] | 5966 |
|
---|
[1278] | 5967 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5968 | }
|
---|
| 5969 |
|
---|
| 5970 |
|
---|
| 5971 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5972 | {
|
---|
| 5973 | // matt: TODO
|
---|
| 5974 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5975 |
|
---|
| 5976 | ViewCellContainer leaves;
|
---|
| 5977 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5978 |
|
---|
| 5979 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5980 |
|
---|
| 5981 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5982 | {
|
---|
[1551] | 5983 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 5984 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5985 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5986 | }
|
---|
| 5987 |
|
---|
[1021] | 5988 | vc->SetMesh(mesh);
|
---|
| 5989 | }
|
---|
| 5990 |
|
---|
| 5991 |
|
---|
| 5992 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5993 | {
|
---|
| 5994 | // matt: TODO
|
---|
| 5995 | return 0;
|
---|
| 5996 | }
|
---|
| 5997 |
|
---|
| 5998 |
|
---|
[1667] | 5999 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
[1021] | 6000 | {
|
---|
| 6001 | float area = 0;
|
---|
| 6002 | float volume = 0;
|
---|
| 6003 |
|
---|
| 6004 | ViewCellContainer leaves;
|
---|
| 6005 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 6006 |
|
---|
| 6007 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 6008 |
|
---|
| 6009 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 6010 | {
|
---|
[1551] | 6011 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 6012 |
|
---|
[1278] | 6013 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 6014 |
|
---|
[1027] | 6015 | const float lVol = box.GetVolume();
|
---|
| 6016 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 6017 |
|
---|
| 6018 | area += lArea;
|
---|
| 6019 | volume += lVol;
|
---|
| 6020 |
|
---|
| 6021 | CreateMesh(*it);
|
---|
[580] | 6022 | }
|
---|
| 6023 |
|
---|
[1021] | 6024 | viewCell->SetVolume(volume);
|
---|
| 6025 | viewCell->SetArea(area);
|
---|
[580] | 6026 | }
|
---|
[1021] | 6027 |
|
---|
[580] | 6028 |
|
---|
[1790] | 6029 | #define PVS_ADD_DIRTY 1
|
---|
[1159] | 6030 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 6031 | const bool addRays,
|
---|
| 6032 | const bool storeViewCells)
|
---|
| 6033 | {
|
---|
| 6034 | ViewCellContainer viewcells;
|
---|
| 6035 |
|
---|
| 6036 | ray.mPvsContribution = 0;
|
---|
| 6037 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 6038 |
|
---|
| 6039 | static Ray hray;
|
---|
| 6040 | hray.Init(ray);
|
---|
| 6041 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 6042 | //Ray hray(ray);
|
---|
| 6043 |
|
---|
[1785] | 6044 | // if (ray.mPdf!=1.0f)
|
---|
| 6045 | // cout<<ray.mPdf<<" ";
|
---|
| 6046 |
|
---|
[1159] | 6047 | float tmin = 0, tmax = 1.0;
|
---|
| 6048 |
|
---|
| 6049 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 6050 | return 0;
|
---|
| 6051 |
|
---|
| 6052 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 6053 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 6054 |
|
---|
[1291] | 6055 | ViewCell::NewMail();
|
---|
| 6056 |
|
---|
[1159] | 6057 | // traverse the view space subdivision
|
---|
| 6058 | CastLineSegment(origin, termination, viewcells);
|
---|
| 6059 |
|
---|
| 6060 | if (storeViewCells)
|
---|
[1291] | 6061 | {
|
---|
[1789] | 6062 | // copy viewcells memory efficiently
|
---|
| 6063 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 6064 | ray.mViewCells = viewcells;
|
---|
[1159] | 6065 | }
|
---|
| 6066 |
|
---|
| 6067 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 6068 |
|
---|
[1761] | 6069 | Intersectable *terminationObj = GetIntersectable(ray, true);
|
---|
| 6070 | Intersectable *originObj = GetIntersectable(ray, false);
|
---|
[1789] | 6071 |
|
---|
| 6072 | for (; it != viewcells.end(); ++ it)
|
---|
| 6073 | {
|
---|
| 6074 | ViewCell *viewcell = *it;
|
---|
| 6075 |
|
---|
| 6076 | if (viewcell->GetValid())
|
---|
[1566] | 6077 | { // if ray not outside of view space
|
---|
[1789] | 6078 | float contribution;
|
---|
| 6079 |
|
---|
| 6080 | if (terminationObj)
|
---|
[1159] | 6081 | {
|
---|
[1789] | 6082 | // todo: maybe not correct for kd node pvs
|
---|
[1790] | 6083 | if (viewcell->GetPvs().GetSampleContribution(
|
---|
| 6084 | terminationObj, ray.mPdf, contribution))
|
---|
[1159] | 6085 | {
|
---|
[1789] | 6086 | ++ ray.mPvsContribution;
|
---|
[1159] | 6087 | }
|
---|
[1790] | 6088 |
|
---|
| 6089 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 6090 | }
|
---|
[1789] | 6091 |
|
---|
| 6092 | ////////////////
|
---|
| 6093 | //-- for directional sampling it is important to count
|
---|
| 6094 | //-- only contributions made in one direction!
|
---|
| 6095 | //-- the other contributions of this sample will be counted for the opposite ray!
|
---|
| 6096 |
|
---|
[1166] | 6097 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1789] | 6098 |
|
---|
[1790] | 6099 | if (originObj &&
|
---|
[1789] | 6100 | viewcell->GetPvs().GetSampleContribution(originObj,
|
---|
| 6101 | ray.mPdf,
|
---|
| 6102 | contribution))
|
---|
[1785] | 6103 | {
|
---|
[1789] | 6104 | ++ ray.mPvsContribution;
|
---|
| 6105 | ray.mRelativePvsContribution += contribution;
|
---|
[1790] | 6106 | }
|
---|
[1159] | 6107 | #endif
|
---|
| 6108 | }
|
---|
| 6109 | }
|
---|
[1789] | 6110 |
|
---|
[1259] | 6111 | if (!addRays)
|
---|
[1566] | 6112 | {
|
---|
[1259] | 6113 | return ray.mRelativePvsContribution;
|
---|
[1566] | 6114 | }
|
---|
[1259] | 6115 |
|
---|
| 6116 | // sampled objects are stored in the pvs
|
---|
| 6117 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 6118 | {
|
---|
[1259] | 6119 | ViewCell *viewCell = *it;
|
---|
[1159] | 6120 |
|
---|
[1259] | 6121 | if (!viewCell->GetValid())
|
---|
| 6122 | break;
|
---|
[1159] | 6123 |
|
---|
[1761] | 6124 | //$$JB hack
|
---|
[1789] | 6125 |
|
---|
[1790] | 6126 | #if PVS_ADD_DIRTY
|
---|
| 6127 | viewCell->GetPvs().AddSampleDirtyCheck(terminationObj, ray.mPdf);
|
---|
| 6128 | #else
|
---|
| 6129 | viewCell->GetPvs().AddSample(terminationObj, ray.mPdf);
|
---|
| 6130 | #endif
|
---|
[1789] | 6131 |
|
---|
[1166] | 6132 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1790] | 6133 | #if PVS_ADD_DIRTY
|
---|
| 6134 | viewCell->GetPvs().AddSampleDirtyCheck(originObj, ray.mPdf);
|
---|
| 6135 | #else
|
---|
| 6136 | viewCell->GetPvs().AddSample(originObj, ray.mPdf);
|
---|
[1789] | 6137 | #endif
|
---|
[1790] | 6138 | #endif
|
---|
| 6139 | if (viewCell->GetPvs().RequiresResort())
|
---|
| 6140 | {
|
---|
| 6141 | viewCell->GetPvs().Sort();
|
---|
| 6142 | }
|
---|
[1159] | 6143 | }
|
---|
[1789] | 6144 |
|
---|
[1715] | 6145 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
[1789] | 6146 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[1159] | 6147 | }
|
---|
| 6148 |
|
---|
| 6149 |
|
---|
[1021] | 6150 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 6151 | {
|
---|
| 6152 | // TODO
|
---|
| 6153 | }
|
---|
[580] | 6154 |
|
---|
[1201] | 6155 |
|
---|
| 6156 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 6157 | ObjectContainer *objects,
|
---|
| 6158 | const bool finalizeViewCells,
|
---|
| 6159 | BoundingBoxConverter *bconverter)
|
---|
| 6160 |
|
---|
| 6161 | {
|
---|
| 6162 | ViewCellsManager *vm =
|
---|
| 6163 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 6164 | #if 0
|
---|
| 6165 | // insert scene objects in tree
|
---|
[1201] | 6166 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 6167 | #endif
|
---|
[1201] | 6168 | return vm;
|
---|
| 6169 | }
|
---|
| 6170 |
|
---|
[1737] | 6171 | void
|
---|
| 6172 | VspOspViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
|
---|
| 6173 | {
|
---|
| 6174 | mHierarchyManager->CollectObjects(box, objects);
|
---|
| 6175 | }
|
---|
[1692] | 6176 |
|
---|
[1737] | 6177 |
|
---|
[1709] | 6178 | #if 1
|
---|
[1180] | 6179 |
|
---|
[1686] | 6180 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 6181 | {
|
---|
| 6182 | int samplesPerPass;
|
---|
| 6183 | int numSamples;
|
---|
| 6184 | int castSamples = 0;
|
---|
[1718] | 6185 | int oldSamples = 0;
|
---|
| 6186 | int samplesForStats;
|
---|
| 6187 | char statsPrefix[100];
|
---|
| 6188 | char suffix[100];
|
---|
[1713] | 6189 | int splitsStepSize;
|
---|
[1686] | 6190 |
|
---|
| 6191 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1718] | 6192 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1686] | 6193 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 6194 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[1718] | 6195 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.stepSize", splitsStepSize);
|
---|
| 6196 |
|
---|
| 6197 | Debug << "step size: " << splitsStepSize << endl;
|
---|
[1686] | 6198 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 6199 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 6200 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 6201 |
|
---|
[1773] | 6202 | cout << "reseting pvs ... ";
|
---|
[1686] | 6203 |
|
---|
| 6204 | // reset pvs and start over from zero
|
---|
[1718] | 6205 | mViewCellsTree->ResetPvs();
|
---|
| 6206 |
|
---|
[1686] | 6207 | cout << "finished" << endl;
|
---|
| 6208 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 6209 |
|
---|
[1811] | 6210 | vector<int> evalStrats;
|
---|
| 6211 |
|
---|
| 6212 | // mix of sampling strategies
|
---|
[1825] | 6213 | if (1)
|
---|
[1811] | 6214 | {
|
---|
| 6215 | evalStrats.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 6216 | evalStrats.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
| 6217 | evalStrats.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
| 6218 |
|
---|
| 6219 | Debug << "casting volume strategies" << endl;
|
---|
| 6220 | cout << "casting volume strategies" << endl;
|
---|
| 6221 | }
|
---|
| 6222 | else
|
---|
| 6223 | {
|
---|
| 6224 | //evalStrats.push_back(SamplingStrategy::VIEWSPACE_BORDER_BASED_DISTRIBUTION);
|
---|
| 6225 | evalStrats.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
| 6226 | evalStrats.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
|
---|
| 6227 | //evalStrats.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
|
---|
| 6228 | //evalStrats.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
|
---|
| 6229 |
|
---|
| 6230 | Debug << "casting surface strategies" << endl;
|
---|
| 6231 | cout << "casting surface strategies" << endl;
|
---|
| 6232 | }
|
---|
[1826] | 6233 |
|
---|
| 6234 | Debug << "casting eval strategies: ";
|
---|
| 6235 | for (int i = 0; i < (int)evalStrats.size(); ++ i)
|
---|
| 6236 | Debug << evalStrats[i] << " ";
|
---|
| 6237 | Debug << endl;
|
---|
[1811] | 6238 |
|
---|
[1686] | 6239 | while (castSamples < numSamples)
|
---|
| 6240 | {
|
---|
| 6241 | ///////////////
|
---|
| 6242 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 6243 |
|
---|
[1718] | 6244 | VssRayContainer evaluationSamples;
|
---|
[1686] | 6245 | const int samplingType = mEvaluationSamplingType;
|
---|
| 6246 |
|
---|
| 6247 | long startTime = GetTime();
|
---|
| 6248 |
|
---|
| 6249 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 6250 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
[1778] | 6251 |
|
---|
[1811] | 6252 | CastPassSamples(samplesPerPass, evalStrats, evaluationSamples);
|
---|
[1786] | 6253 | //CastPassSamples(samplesPerPass, mStrategies, evaluationSamples);
|
---|
[1686] | 6254 |
|
---|
| 6255 | castSamples += samplesPerPass;
|
---|
| 6256 |
|
---|
| 6257 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1718] | 6258 |
|
---|
| 6259 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6260 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1718] | 6261 |
|
---|
| 6262 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1686] | 6263 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 6264 |
|
---|
| 6265 | startTime = GetTime();
|
---|
| 6266 |
|
---|
| 6267 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 6268 |
|
---|
| 6269 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6270 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6271 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6272 |
|
---|
[1758] | 6273 | if ((castSamples >= samplesForStats + oldSamples) ||
|
---|
| 6274 | (castSamples >= numSamples))
|
---|
[1718] | 6275 | {
|
---|
| 6276 | oldSamples += samplesForStats;
|
---|
[1686] | 6277 |
|
---|
[1718] | 6278 | ///////////
|
---|
| 6279 | //-- output stats
|
---|
[1686] | 6280 |
|
---|
[1718] | 6281 | sprintf(suffix, "-%09d-eval.log", castSamples);
|
---|
| 6282 | const string filename = string(statsPrefix) + string(suffix);
|
---|
[1710] | 6283 |
|
---|
[1718] | 6284 | startTime = GetTime();
|
---|
[1732] | 6285 |
|
---|
[1718] | 6286 | cout << "compute new statistics ... " << endl;
|
---|
[1710] | 6287 |
|
---|
[1718] | 6288 | ofstream ofstr(filename.c_str());
|
---|
[1745] | 6289 | mHierarchyManager->EvaluateSubdivision2(ofstr, splitsStepSize, false);
|
---|
[1718] | 6290 |
|
---|
| 6291 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6292 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1732] | 6293 | cout << "*************************************" << endl;
|
---|
| 6294 |
|
---|
[1718] | 6295 | Debug << "statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6296 |
|
---|
[1750] | 6297 | #if 0
|
---|
[1787] | 6298 | //////////////
|
---|
[1745] | 6299 | // filtered stats
|
---|
[1790] | 6300 |
|
---|
[1745] | 6301 | sprintf(suffix, "-%09d-eval-filter.log", castSamples);
|
---|
| 6302 | const string filename2 = string(statsPrefix) + string(suffix);
|
---|
| 6303 |
|
---|
| 6304 | startTime = GetTime();
|
---|
| 6305 |
|
---|
| 6306 | cout << "compute new statistics for filtered pvs ... " << endl;
|
---|
| 6307 |
|
---|
| 6308 | ofstream ofstr2(filename2.c_str());
|
---|
| 6309 | mHierarchyManager->EvaluateSubdivision2(ofstr2, splitsStepSize, true);
|
---|
| 6310 |
|
---|
| 6311 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 6312 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 6313 | cout << "*************************************" << endl;
|
---|
[1787] | 6314 | Debug << "filtered statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1745] | 6315 | #endif
|
---|
| 6316 |
|
---|
[1718] | 6317 | // only for debugging purpose
|
---|
[1732] | 6318 | if (0)
|
---|
[1718] | 6319 | {
|
---|
| 6320 | ViewCellContainer viewCells;
|
---|
| 6321 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), viewCells);
|
---|
| 6322 |
|
---|
| 6323 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
| 6324 | int pvsSize = 0;
|
---|
| 6325 |
|
---|
| 6326 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 6327 | {
|
---|
| 6328 | pvsSize += (*vit)->GetPvs().GetSize();
|
---|
| 6329 | }
|
---|
| 6330 |
|
---|
[1787] | 6331 | cout << "debug entries: " << pvsSize << ", memcost: "
|
---|
| 6332 | << (float)pvsSize * ObjectPvs::GetEntrySize() << endl;
|
---|
[1718] | 6333 | }
|
---|
| 6334 | }
|
---|
| 6335 |
|
---|
[1709] | 6336 | disposeRays(evaluationSamples, NULL);
|
---|
[1686] | 6337 | }
|
---|
[1718] | 6338 |
|
---|
[1686] | 6339 | }
|
---|
[1551] | 6340 | #endif
|
---|
[1786] | 6341 |
|
---|
| 6342 |
|
---|
| 6343 |
|
---|
| 6344 | }
|
---|