[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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[440] | 25 |
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[1278] | 26 |
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[1159] | 27 | // should not count origin object for sampling because it disturbs heuristics
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[1166] | 28 | #define SAMPLE_ORIGIN_OBJECTS 0
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[931] | 29 |
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[1486] | 30 |
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| 31 |
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| 32 |
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[863] | 33 | namespace GtpVisibilityPreprocessor {
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[860] | 34 |
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| 35 |
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[712] | 36 | // HACK
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| 37 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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[1486] | 38 | const static bool CLAMP_TO_BOX = false;
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[517] | 39 |
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[697] | 40 | template <typename T> class myless
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| 41 | {
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| 42 | public:
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| 43 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 44 | bool operator() (T v1, T v2) const
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| 45 | {
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| 46 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 47 | }
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| 48 | };
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| 49 |
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| 50 |
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[1264] | 51 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 52 | mRenderer(NULL),
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[574] | 53 | mInitialSamples(0),
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[440] | 54 | mConstructionSamples(0),
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| 55 | mPostProcessSamples(0),
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[470] | 56 | mVisualizationSamples(0),
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| 57 | mTotalAreaValid(false),
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[517] | 58 | mTotalArea(0.0f),
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[547] | 59 | mViewCellsFinished(false),
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[562] | 60 | mMaxPvsSize(9999999),
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[564] | 61 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 62 | mMaxPvsRatio(1.0),
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[1145] | 63 | mViewCellPvsIsUpdated(false),
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[1264] | 64 | mPreprocessor(NULL),
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| 65 | mViewCellsTree(viewCellsTree)
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[440] | 66 | {
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[542] | 67 | mViewSpaceBox.Initialize();
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[482] | 68 | ParseEnvironment();
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[580] | 69 |
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[1264] | 70 | mViewCellsTree->SetViewCellsManager(this);
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| 71 | //mViewCellsTree = new ViewCellsTree(this);
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[440] | 72 | }
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| 73 |
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[517] | 74 |
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[482] | 75 | void ViewCellsManager::ParseEnvironment()
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| 76 | {
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[503] | 77 | // visualization stuff
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[1004] | 78 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 79 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 80 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 81 |
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[1004] | 82 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 83 |
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[1004] | 84 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 85 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 86 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 87 |
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[1004] | 88 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 89 |
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[1004] | 90 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 91 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 92 |
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[1004] | 93 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 94 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 95 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 96 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 98 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 99 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 100 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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| 101 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 102 |
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[1004] | 103 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 104 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 105 |
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[664] | 106 | char buf[100];
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[1004] | 107 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 108 |
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[660] | 109 |
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[1020] | 110 | // sampling type for view cells construction samples
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[664] | 111 | if (strcmp(buf, "box") == 0)
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[722] | 112 | {
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[1520] | 113 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 114 | }
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[664] | 115 | else if (strcmp(buf, "directional") == 0)
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[722] | 116 | {
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[1520] | 117 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 118 | }
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[1020] | 119 | else if (strcmp(buf, "object_directional") == 0)
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| 120 | {
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[1520] | 121 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 122 | }
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[1022] | 123 | /*else if (strcmp(buf, "interior") == 0)
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| 124 | {
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| 125 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 126 | }*/
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[1020] | 127 | else
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| 128 | {
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[666] | 129 | Debug << "error! wrong sampling type" << endl;
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| 130 | exit(0);
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| 131 | }
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[660] | 132 |
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[1020] | 133 | // sampling type for evaluation samples
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[1004] | 134 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 135 |
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| 136 | if (strcmp(buf, "box") == 0)
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| 137 | {
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[1520] | 138 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 139 | }
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| 140 | else if (strcmp(buf, "directional") == 0)
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| 141 | {
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[1520] | 142 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 143 | }
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[1020] | 144 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 145 | {
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[1520] | 146 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 147 | }
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[1022] | 148 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 149 | {
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[1520] | 150 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 151 | }*/
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[1020] | 152 | else
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| 153 | {
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[722] | 154 | Debug << "error! wrong sampling type" << endl;
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| 155 | exit(0);
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| 156 | }
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[503] | 157 |
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[1004] | 158 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 159 |
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[734] | 160 | if (strcmp(buf, "perobject") == 0)
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[728] | 161 | {
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| 162 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 163 | }
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| 164 | else if (strcmp(buf, "directional") == 0)
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| 165 | {
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| 166 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 167 | }
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| 168 | else
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| 169 | {
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| 170 | Debug << "error! wrong sampling type" << endl;
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| 171 | exit(0);
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| 172 | }
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| 173 |
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[1004] | 174 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 175 |
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[482] | 176 | if (strcmp(buf, "PVS") == 0)
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| 177 | mColorCode = 1;
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| 178 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 179 | mColorCode = 2;
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| 180 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 181 | mColorCode = 3;
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| 182 | else
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| 183 | mColorCode = 0;
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| 184 |
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[664] | 185 |
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[1418] | 186 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 187 | Debug << "color code: " << mColorCode << endl;
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| 188 |
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| 189 | Debug << "export rays: " << mExportRays << endl;
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| 190 | Debug << "export geometry: " << mExportGeometry << endl;
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| 191 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 192 |
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| 193 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 194 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 195 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 196 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 197 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 198 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 199 | Debug << "export to file: " << mExportViewCells << endl;
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| 200 |
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[801] | 201 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 202 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 203 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 204 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 205 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 206 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 207 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 208 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 209 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 210 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 211 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 212 |
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| 213 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 214 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[664] | 215 | Debug << endl;
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[440] | 216 | }
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| 217 |
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[485] | 218 |
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[440] | 219 | ViewCellsManager::~ViewCellsManager()
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| 220 | {
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[1020] | 221 | // HACK: if view cells tree does not
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[1264] | 222 | // handle view cells, we have to do it here
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[1020] | 223 | // question: rather create view cells resource manager?
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[598] | 224 | if (!ViewCellsTreeConstructed())
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[1141] | 225 | {
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[598] | 226 | CLEAR_CONTAINER(mViewCells);
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[1141] | 227 | }
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[440] | 228 | }
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| 229 |
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[1221] | 230 |
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| 231 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 232 | {
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| 233 | Mesh *m = vc->GetMesh();
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| 234 |
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| 235 | if (m) {
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| 236 | m->ComputeBoundingBox();
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| 237 | return m->mBox;
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| 238 | }
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[485] | 239 |
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[859] | 240 | AxisAlignedBox3 box;
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| 241 |
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| 242 | box.Initialize();
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| 243 |
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| 244 | if (!vc->IsLeaf()) {
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| 245 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 246 |
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| 247 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 248 | for (; it != vci->mChildren.end(); ++it) {
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| 249 | box.Include(GetViewCellBox(*it));
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| 250 | }
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| 251 | }
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| 252 |
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| 253 | return box;
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| 254 | }
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| 255 |
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[693] | 256 |
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[1021] | 257 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
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| 258 | {
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| 259 | return false;
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| 260 | }
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| 261 |
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| 262 |
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[574] | 263 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 264 | const int sampleType,
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| 265 | VssRayContainer &passSamples) const
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[527] | 266 | {
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[570] | 267 | SimpleRayContainer simpleRays;
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[1221] | 268 | const long startTime = GetTime();
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[564] | 269 |
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[1221] | 270 | mPreprocessor->GenerateRays(samplesPerPass, sampleType, simpleRays);
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[1473] | 271 | Debug << "generated " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[1221] | 272 |
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[573] | 273 | // shoot simple ray and add it to importance samples
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[1520] | 274 | mPreprocessor->CastRays(simpleRays, passSamples, true);
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[1473] | 275 | Debug << "cast " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[570] | 276 |
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[574] | 277 | return (int)passSamples.size();
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| 278 | }
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[570] | 279 |
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[574] | 280 |
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| 281 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 282 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 283 | {
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| 284 | cout << "disposing samples ... ";
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[582] | 285 | long startTime = GetTime();
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| 286 | int n = (int)rays.size();
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| 287 |
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[573] | 288 | if (outRays)
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[542] | 289 | {
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[574] | 290 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 291 |
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| 292 | for (it = rays.begin(); it != it_end; ++ it)
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| 293 | {
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| 294 | outRays->push_back(*it);
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| 295 | }
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[573] | 296 | }
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| 297 | else
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| 298 | {
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[639] | 299 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 300 |
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| 301 | for (it = rays.begin(); it != it_end; ++ it)
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| 302 | {
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| 303 | //(*it)->Unref();
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| 304 | if (!(*it)->IsActive())
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| 305 | delete (*it);
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| 306 | }
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[573] | 307 | }
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[639] | 308 |
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[574] | 309 | cout << "finished" << endl;
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[582] | 310 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 311 | }
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[570] | 312 |
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| 313 |
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[573] | 314 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 315 | {
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| 316 | int numSamples = 0;
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[1077] | 317 |
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[573] | 318 | SimpleRayContainer simpleRays;
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[574] | 319 | VssRayContainer initialSamples;
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[540] | 320 |
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[1381] | 321 | // store pointer to preprocessor for further use during construction
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| 322 | mPreprocessor = preprocessor;
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| 323 |
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| 324 |
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| 325 | ///////////////////////////////////////////////////////
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| 326 | //-- Initial sampling for the construction of the view cell hierarchy.
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| 327 | //-- We use uniform sampling / box based sampling.
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| 328 |
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[752] | 329 | long startTime = GetTime();
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[1381] | 330 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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[1414] | 331 |
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[1381] | 332 | // cast initial samples
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| 333 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
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[1278] | 334 |
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[1221] | 335 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[574] | 336 |
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[573] | 337 | // construct view cells
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[752] | 338 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
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[540] | 339 |
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[727] | 340 | // initial samples count for overall samples ...
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[752] | 341 | numSamples += mInitialSamples;
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[542] | 342 |
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[574] | 343 | // rays can be passed or deleted
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[639] | 344 | disposeRays(initialSamples, outRays);
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[752] | 345 |
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| 346 | cout << "time needed for initial construction: "
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| 347 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 348 |
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| 349 | Debug << "time needed for initial construction: "
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| 350 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 351 |
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[1444] | 352 | // collect view cells and compute statistics
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| 353 | ResetViewCells();
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[752] | 354 |
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[1444] | 355 |
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| 356 | ///////////////////
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| 357 | //-- Initial hierarchy construction finished.
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[1381] | 358 | //-- We can do some stats and visualization
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| 359 |
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[1444] | 360 | if (0)
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[660] | 361 | {
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[1444] | 362 | //-- export initial view cell partition
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| 363 | Debug << "\nView cells after initial sampling:\n"
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| 364 | << mCurrentViewCellsStats << endl;
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[1416] | 365 |
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[1414] | 366 | const string filename("viewcells.wrl");
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| 367 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
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[712] | 368 |
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[660] | 369 | if (exporter)
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| 370 | {
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[1414] | 371 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
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| 372 |
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[660] | 373 | if (mExportGeometry)
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[712] | 374 | {
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[660] | 375 | exporter->ExportGeometry(preprocessor->mObjects);
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[712] | 376 | }
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[660] | 377 |
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[750] | 378 | exporter->SetWireframe();
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[1416] | 379 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
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[660] | 380 |
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| 381 | delete exporter;
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[712] | 382 | cout << "finished" << endl;
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[660] | 383 | }
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| 384 | }
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| 385 |
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[1381] | 386 |
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[1419] | 387 | //////////////////////
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[1381] | 388 | //-- Cast some more sampling after initial construction.
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| 389 | //-- The additional rays can be used to gain
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| 390 | //-- some more information before the bottom-up merge
|
---|
| 391 | //-- note: guided rays could be used for this task
|
---|
| 392 |
|
---|
[1414] | 393 | // time spent after construction of the initial partition
|
---|
[1381] | 394 | startTime = GetTime();
|
---|
[574] | 395 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[666] | 396 | // should we use directional samples?
|
---|
[1520] | 397 | bool dirSamples = (mSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 398 |
|
---|
| 399 | while (numSamples < n)
|
---|
| 400 | {
|
---|
[596] | 401 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 402 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 403 |
|
---|
[574] | 404 | VssRayContainer constructionSamples;
|
---|
| 405 |
|
---|
[694] | 406 | const int samplingType = mSamplingType;
|
---|
[1444] | 407 | //dirSamples ? Preprocessor::DIRECTION_BASED_DISTRIBUTION : Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[667] | 408 |
|
---|
[720] | 409 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 410 |
|
---|
[727] | 411 | // cast new samples
|
---|
[574] | 412 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 413 | samplingType,
|
---|
[574] | 414 | constructionSamples);
|
---|
| 415 |
|
---|
| 416 | cout << "finished" << endl;
|
---|
| 417 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 418 |
|
---|
[727] | 419 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 420 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 421 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 422 |
|
---|
[574] | 423 | cout << "finished" << endl;
|
---|
| 424 |
|
---|
[639] | 425 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 426 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 427 | }
|
---|
[752] | 428 |
|
---|
[1381] | 429 |
|
---|
[1414] | 430 | #if 0
|
---|
[1416] | 431 | ///////////////
|
---|
| 432 | //-- Get stats after the additional sampling step
|
---|
[1381] | 433 | //-- and before the bottom-up merge step
|
---|
[570] | 434 |
|
---|
[660] | 435 | EvaluateViewCellsStats();
|
---|
[1381] | 436 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 437 | << mCurrentViewCellsStats << endl;
|
---|
[660] | 438 |
|
---|
| 439 | mRenderer->RenderScene();
|
---|
| 440 | SimulationStatistics ss;
|
---|
| 441 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 442 |
|
---|
| 443 | Debug << ss << endl;
|
---|
[1414] | 444 | #endif
|
---|
[660] | 445 |
|
---|
| 446 |
|
---|
[1416] | 447 | ////////////////////
|
---|
[1381] | 448 | //-- post processing of the initial construction
|
---|
| 449 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 450 | //-- We can additionally cast some post processing sample rays.
|
---|
| 451 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 452 |
|
---|
| 453 | VssRayContainer postProcessSamples;
|
---|
| 454 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 455 |
|
---|
| 456 | CastPassSamples(mPostProcessSamples, mSamplingType, postProcessSamples);
|
---|
| 457 |
|
---|
| 458 | cout << "finished" << endl;
|
---|
[574] | 459 | cout << "starting post processing and visualization" << endl;
|
---|
| 460 |
|
---|
[1444] | 461 | // store view cells with rays for post processing?
|
---|
[574] | 462 | const bool storeViewCells = true;
|
---|
[605] | 463 |
|
---|
| 464 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 465 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 466 |
|
---|
[1381] | 467 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 468 |
|
---|
[1414] | 469 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 470 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 471 |
|
---|
[1414] | 472 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 473 | disposeRays(postProcessSamples, outRays);
|
---|
| 474 |
|
---|
[801] | 475 |
|
---|
[1416] | 476 | ////////////////
|
---|
[1381] | 477 | //-- Evaluation of the resulting view cell partition.
|
---|
| 478 | //-- We cast a number of new samples and measure the render cost
|
---|
| 479 |
|
---|
[801] | 480 | if (mEvaluateViewCells)
|
---|
| 481 | {
|
---|
[1145] | 482 | EvalViewCellPartition();
|
---|
[801] | 483 | }
|
---|
[1381] | 484 |
|
---|
[1416] | 485 | /////////////////
|
---|
[1381] | 486 | //-- Finally, we do some visualization
|
---|
| 487 |
|
---|
[666] | 488 | if (mShowVisualization)
|
---|
| 489 | {
|
---|
| 490 | VssRayContainer visualizationSamples;
|
---|
[574] | 491 |
|
---|
[1520] | 492 | ////////
|
---|
[1381] | 493 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[666] | 494 | CastPassSamples(mVisualizationSamples,
|
---|
[1520] | 495 | SamplingStrategy::DIRECTION_BASED_DISTRIBUTION,
|
---|
[666] | 496 | visualizationSamples);
|
---|
[574] | 497 |
|
---|
[666] | 498 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 499 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 500 |
|
---|
[1444] | 501 | // various visualizations
|
---|
[666] | 502 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 503 |
|
---|
[666] | 504 | disposeRays(visualizationSamples, outRays);
|
---|
| 505 | }
|
---|
[574] | 506 |
|
---|
[1444] | 507 | // recalculate view cells
|
---|
| 508 | EvaluateViewCellsStats();
|
---|
| 509 |
|
---|
[573] | 510 | return numSamples;
|
---|
[527] | 511 | }
|
---|
| 512 |
|
---|
[547] | 513 |
|
---|
[1418] | 514 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 515 | {
|
---|
| 516 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 517 | }
|
---|
| 518 |
|
---|
| 519 |
|
---|
[752] | 520 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 521 | const int nViewCells)
|
---|
[728] | 522 | {
|
---|
| 523 | std::ofstream outstream;
|
---|
| 524 | outstream.open(filename.c_str());
|
---|
| 525 |
|
---|
| 526 | ViewCellContainer viewCells;
|
---|
[735] | 527 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 528 |
|
---|
| 529 | float maxRenderCost, minRenderCost;
|
---|
[734] | 530 |
|
---|
| 531 | // sort by render cost
|
---|
| 532 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 533 |
|
---|
| 534 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 535 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 536 |
|
---|
[991] | 537 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 538 |
|
---|
[997] | 539 | int histoIntervals;
|
---|
[1004] | 540 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 541 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 542 |
|
---|
[997] | 543 | int histoMaxVal;
|
---|
[1004] | 544 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 545 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 546 |
|
---|
[997] | 547 |
|
---|
[728] | 548 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 549 | const float stepSize = range / (float)intervals;
|
---|
[728] | 550 |
|
---|
[735] | 551 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 552 |
|
---|
| 553 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 554 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 555 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 556 |
|
---|
[736] | 557 | int j = 0;
|
---|
[735] | 558 | int i = 0;
|
---|
| 559 |
|
---|
[734] | 560 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 561 |
|
---|
[744] | 562 | // count for integral
|
---|
| 563 | float volSum = 0;
|
---|
| 564 | int smallerCostSum = 0;
|
---|
[735] | 565 |
|
---|
[734] | 566 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 567 | while (1)
|
---|
| 568 | {
|
---|
[744] | 569 | // count for histogram value
|
---|
| 570 | float volDif = 0;
|
---|
| 571 | int smallerCostDif = 0;
|
---|
[736] | 572 |
|
---|
[734] | 573 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 574 | {
|
---|
[744] | 575 | volSum += viewCells[i]->GetVolume();
|
---|
| 576 | volDif += viewCells[i]->GetVolume();
|
---|
| 577 |
|
---|
[734] | 578 | ++ i;
|
---|
[744] | 579 | ++ smallerCostSum;
|
---|
| 580 | ++ smallerCostDif;
|
---|
[734] | 581 | }
|
---|
[736] | 582 |
|
---|
[744] | 583 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 584 | break;
|
---|
[736] | 585 |
|
---|
[744] | 586 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 587 | const float volRatioSum = volSum / totalVol;
|
---|
| 588 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 589 |
|
---|
[991] | 590 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 591 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 592 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 593 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 594 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 595 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 596 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 597 |
|
---|
| 598 | // increase current render cost
|
---|
[734] | 599 | currentRenderCost += stepSize;
|
---|
| 600 | }
|
---|
[735] | 601 |
|
---|
[734] | 602 | outstream.close();
|
---|
| 603 | }
|
---|
| 604 |
|
---|
[735] | 605 |
|
---|
[979] | 606 |
|
---|
| 607 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 608 | ObjectContainer *objects,
|
---|
| 609 | const bool finalizeViewCells,
|
---|
| 610 | BoundingBoxConverter *bconverter)
|
---|
| 611 |
|
---|
| 612 | {
|
---|
| 613 | ViewCellsParser parser;
|
---|
| 614 |
|
---|
| 615 | ViewCellsManager *vm = NULL;
|
---|
| 616 |
|
---|
[1221] | 617 | if (parser.ParseViewCellsFile(filename, &vm, objects, bconverter))
|
---|
[979] | 618 | {
|
---|
| 619 | long startTime = GetTime();
|
---|
| 620 |
|
---|
| 621 | vm->ResetViewCells();
|
---|
| 622 |
|
---|
| 623 | vm->mViewCellsFinished = true;
|
---|
| 624 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 625 |
|
---|
| 626 | if (finalizeViewCells)
|
---|
| 627 | {
|
---|
[1444] | 628 | // create the meshes and compute volumes
|
---|
[979] | 629 | vm->FinalizeViewCells(true);
|
---|
| 630 | vm->mViewCellsTree->AssignRandomColors();
|
---|
| 631 | }
|
---|
| 632 |
|
---|
| 633 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 634 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 635 | }
|
---|
| 636 | else
|
---|
| 637 | {
|
---|
| 638 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 639 | DEL_PTR(vm);
|
---|
| 640 | }
|
---|
| 641 |
|
---|
| 642 | return vm;
|
---|
| 643 | }
|
---|
| 644 |
|
---|
| 645 |
|
---|
| 646 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 647 | const bool exportPvs,
|
---|
| 648 | const ObjectContainer &objects)
|
---|
| 649 | {
|
---|
[1002] | 650 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[997] | 651 | return false;
|
---|
| 652 |
|
---|
[979] | 653 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 654 |
|
---|
[1201] | 655 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 656 |
|
---|
| 657 | // for output we need unique ids for each view cell
|
---|
| 658 | CreateUniqueViewCellIds();
|
---|
| 659 |
|
---|
| 660 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 661 | stream << "<VisibilitySolution>" << endl;
|
---|
| 662 |
|
---|
[1262] | 663 | if (exportPvs)
|
---|
| 664 | {
|
---|
| 665 | //-- export bounding boxes
|
---|
[1264] | 666 |
|
---|
[1262] | 667 | stream << "<BoundingBoxes>" << endl;
|
---|
[979] | 668 |
|
---|
[1262] | 669 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[979] | 670 |
|
---|
[1262] | 671 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 672 | {
|
---|
[979] | 673 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 674 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 675 |
|
---|
| 676 | //-- the bounding boxes
|
---|
| 677 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 678 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 679 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 680 | }
|
---|
[979] | 681 |
|
---|
[1262] | 682 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 683 | }
|
---|
[979] | 684 |
|
---|
[1264] | 685 |
|
---|
[979] | 686 | //-- export the view cells and the pvs
|
---|
| 687 |
|
---|
| 688 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 689 |
|
---|
| 690 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 691 |
|
---|
| 692 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 693 |
|
---|
| 694 | stream << "</ViewCells>" << endl;
|
---|
| 695 |
|
---|
| 696 |
|
---|
[1262] | 697 | //-- export the view space hierarchy
|
---|
[979] | 698 |
|
---|
[1262] | 699 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 700 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 701 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 702 |
|
---|
[979] | 703 | mVspBspTree->Export(stream);
|
---|
[1286] | 704 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 705 |
|
---|
| 706 | stream << "</VisibilitySolution>" << endl;
|
---|
| 707 |
|
---|
| 708 | stream.close();
|
---|
| 709 | cout << "finished" << endl;
|
---|
| 710 |
|
---|
| 711 | return true;
|
---|
| 712 | }
|
---|
| 713 |
|
---|
| 714 |
|
---|
[735] | 715 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 716 | const int nViewCells)
|
---|
[734] | 717 | {
|
---|
| 718 | std::ofstream outstream;
|
---|
| 719 | outstream.open(filename.c_str());
|
---|
| 720 |
|
---|
| 721 | ViewCellContainer viewCells;
|
---|
[735] | 722 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 723 |
|
---|
[997] | 724 | int maxPvs, maxVal, minVal;
|
---|
[734] | 725 |
|
---|
[997] | 726 | // sort by pvs size
|
---|
[735] | 727 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 728 |
|
---|
[1142] | 729 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
[997] | 730 | minVal = 0;
|
---|
| 731 |
|
---|
[991] | 732 | // hack: normalize pvs size
|
---|
[997] | 733 | int histoMaxVal;
|
---|
[1004] | 734 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 735 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 736 |
|
---|
[1121] | 737 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 738 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 739 |
|
---|
[997] | 740 | int histoIntervals;
|
---|
[1004] | 741 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 742 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 743 |
|
---|
[997] | 744 | const int range = maxVal - minVal;
|
---|
[735] | 745 | int stepSize = range / intervals;
|
---|
| 746 |
|
---|
[997] | 747 | // set step size to avoid endless loop
|
---|
[735] | 748 | if (!stepSize) stepSize = 1;
|
---|
[979] | 749 |
|
---|
| 750 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 751 |
|
---|
[735] | 752 |
|
---|
| 753 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 754 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 755 |
|
---|
[997] | 756 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
[735] | 757 |
|
---|
[997] | 758 |
|
---|
[735] | 759 | int i = 0;
|
---|
| 760 | int j = 0;
|
---|
[734] | 761 |
|
---|
[744] | 762 | float volSum = 0;
|
---|
| 763 | int smallerSum = 0;
|
---|
| 764 |
|
---|
[735] | 765 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 766 |
|
---|
[997] | 767 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 768 | {
|
---|
[744] | 769 | float volDif = 0;
|
---|
| 770 | int smallerDif = 0;
|
---|
[736] | 771 |
|
---|
[997] | 772 | while ((i < (int)viewCells.size()) &&
|
---|
[1142] | 773 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
[735] | 774 | {
|
---|
[744] | 775 | volDif += viewCells[i]->GetVolume();
|
---|
| 776 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 777 |
|
---|
[735] | 778 | ++ i;
|
---|
[744] | 779 | ++ smallerDif;
|
---|
| 780 | ++ smallerSum;
|
---|
[735] | 781 | }
|
---|
[736] | 782 |
|
---|
[997] | 783 | if (0 && (i < (int)viewCells.size()))
|
---|
[1142] | 784 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i])
|
---|
[1121] | 785 | << " " << currentPvs << endl;
|
---|
[997] | 786 |
|
---|
[744] | 787 | const float volRatioDif = volDif / totalVol;
|
---|
| 788 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 789 |
|
---|
[997] | 790 | outstream << "#Pass\n" << j << endl;
|
---|
| 791 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 792 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 793 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 794 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 795 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 796 |
|
---|
| 797 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 798 |
|
---|
[997] | 799 | //-- increase current pvs size to define next interval
|
---|
| 800 | currentPvs += stepSize;
|
---|
[728] | 801 | }
|
---|
[991] | 802 |
|
---|
[735] | 803 | outstream.close();
|
---|
[728] | 804 | }
|
---|
| 805 |
|
---|
[735] | 806 |
|
---|
[1002] | 807 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 808 | {
|
---|
| 809 | return mExportPvs;
|
---|
| 810 | }
|
---|
| 811 |
|
---|
| 812 |
|
---|
[1259] | 813 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 814 | const Vector3 &hitPoint,
|
---|
| 815 | ViewCell *vc,
|
---|
| 816 | const float pdf,
|
---|
| 817 | float &contribution) const
|
---|
| 818 | {
|
---|
| 819 | if (!obj) return false;
|
---|
| 820 |
|
---|
| 821 | // potentially visible objects
|
---|
| 822 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 823 | }
|
---|
| 824 |
|
---|
| 825 |
|
---|
[1145] | 826 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 827 | {
|
---|
| 828 | int samplesPerPass;
|
---|
| 829 | int numSamples;
|
---|
| 830 | int castSamples = 0;
|
---|
| 831 |
|
---|
[664] | 832 | char s[64];
|
---|
| 833 |
|
---|
[1004] | 834 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 835 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 836 |
|
---|
[664] | 837 | char statsPrefix[100];
|
---|
[1004] | 838 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 839 |
|
---|
[664] | 840 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 841 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 842 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 843 |
|
---|
[666] | 844 | // should directional sampling be used?
|
---|
[1520] | 845 | bool dirSamples = (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 846 |
|
---|
[801] | 847 | cout << "reseting pvs ... ";
|
---|
| 848 |
|
---|
[1145] | 849 | const bool startFromZero = true;
|
---|
[801] | 850 |
|
---|
[666] | 851 | // reset pvs and start over from zero
|
---|
| 852 | if (startFromZero)
|
---|
| 853 | {
|
---|
| 854 | mViewCellsTree->ResetPvs();
|
---|
| 855 | }
|
---|
[1145] | 856 | else // start from current sampless
|
---|
[666] | 857 | {
|
---|
[1145] | 858 | // statistics before casting more samples
|
---|
[666] | 859 | cout << "compute new statistics ... ";
|
---|
| 860 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 861 | string fName = string(statsPrefix) + string(s);
|
---|
| 862 |
|
---|
| 863 | mViewCellsTree->ExportStats(fName);
|
---|
| 864 | cout << "finished" << endl;
|
---|
| 865 | }
|
---|
[744] | 866 | cout << "finished" << endl;
|
---|
| 867 |
|
---|
[1178] | 868 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 869 |
|
---|
[660] | 870 | while (castSamples < numSamples)
|
---|
| 871 | {
|
---|
[664] | 872 | VssRayContainer evaluationSamples;
|
---|
[663] | 873 |
|
---|
[722] | 874 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 875 | /* dirSamples ?
|
---|
[664] | 876 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 877 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 878 | */
|
---|
[1004] | 879 | long startTime = GetTime();
|
---|
| 880 |
|
---|
[664] | 881 | //-- construction rays => we use uniform samples for this
|
---|
[1278] | 882 |
|
---|
[1004] | 883 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 884 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 885 |
|
---|
[664] | 886 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 887 |
|
---|
| 888 | castSamples += samplesPerPass;
|
---|
| 889 |
|
---|
[1004] | 890 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 891 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 892 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 893 |
|
---|
[1004] | 894 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 895 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 896 |
|
---|
| 897 | startTime = GetTime();
|
---|
| 898 |
|
---|
[664] | 899 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 900 |
|
---|
[1004] | 901 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 902 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 903 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 904 |
|
---|
[1004] | 905 | startTime = GetTime();
|
---|
[801] | 906 |
|
---|
[1444] | 907 | cout << "compute new statistics ... " << endl;
|
---|
| 908 |
|
---|
[801] | 909 | //-- propagate pvs or pvs size information
|
---|
[752] | 910 | ObjectPvs pvs;
|
---|
| 911 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 912 |
|
---|
[801] | 913 | //-- output stats
|
---|
[667] | 914 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 915 | string fileName = string(statsPrefix) + string(s);
|
---|
| 916 |
|
---|
| 917 | mViewCellsTree->ExportStats(fileName);
|
---|
| 918 |
|
---|
[1004] | 919 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 920 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1444] | 921 | Debug << "statistis compted in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 922 |
|
---|
| 923 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 924 | }
|
---|
[728] | 925 |
|
---|
[997] | 926 |
|
---|
[1444] | 927 | ////////////7
|
---|
[997] | 928 | //-- histogram
|
---|
| 929 |
|
---|
[735] | 930 | bool useHisto;
|
---|
[997] | 931 | int histoStepSize;
|
---|
[693] | 932 |
|
---|
[1004] | 933 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 934 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 935 |
|
---|
[744] | 936 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 937 |
|
---|
| 938 |
|
---|
[735] | 939 | if (useHisto)
|
---|
[734] | 940 | {
|
---|
[735] | 941 | // evaluate view cells in a histogram
|
---|
| 942 | char s[64];
|
---|
| 943 |
|
---|
[997] | 944 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 945 | {
|
---|
[997] | 946 | string filename;
|
---|
[744] | 947 |
|
---|
[997] | 948 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 949 | #if 0
|
---|
[744] | 950 | //-- evaluate histogram for render cost
|
---|
| 951 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 952 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 953 |
|
---|
| 954 | EvalViewCellHistogram(filename, pass);
|
---|
| 955 |
|
---|
[997] | 956 | #endif
|
---|
[744] | 957 | //////////////////////////////////////////
|
---|
[752] | 958 | //-- evaluate histogram for pvs size
|
---|
[744] | 959 |
|
---|
| 960 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 961 |
|
---|
| 962 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 963 | filename = string(statsPrefix) + string(s);
|
---|
| 964 |
|
---|
| 965 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 966 | }
|
---|
[734] | 967 | }
|
---|
[660] | 968 | }
|
---|
| 969 |
|
---|
[704] | 970 |
|
---|
| 971 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 972 | {
|
---|
[704] | 973 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 974 | }
|
---|
[660] | 975 |
|
---|
[703] | 976 |
|
---|
[1145] | 977 | /// Returns index of the best view cells of the neighborhood
|
---|
[704] | 978 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 979 | {
|
---|
[705] | 980 | int bestViewCellIdx = 0;
|
---|
[703] | 981 |
|
---|
[704] | 982 | float mergeCost = Limits::Infinity;
|
---|
| 983 | int i = 0;
|
---|
[703] | 984 |
|
---|
[734] | 985 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 986 |
|
---|
[734] | 987 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 988 | {
|
---|
[734] | 989 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 990 |
|
---|
| 991 | if (mc < mergeCost)
|
---|
[704] | 992 | {
|
---|
| 993 | mergeCost = mc;
|
---|
| 994 | bestViewCellIdx = i;
|
---|
[703] | 995 | }
|
---|
[704] | 996 | }
|
---|
[703] | 997 |
|
---|
[704] | 998 | return bestViewCellIdx;
|
---|
| 999 | }
|
---|
[703] | 1000 |
|
---|
| 1001 |
|
---|
[728] | 1002 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1003 | {
|
---|
| 1004 | mMaxFilterSize = size;
|
---|
| 1005 | }
|
---|
| 1006 |
|
---|
| 1007 |
|
---|
| 1008 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1009 | {
|
---|
| 1010 | switch (mRenderCostEvaluationType)
|
---|
| 1011 | {
|
---|
| 1012 | case PER_OBJECT:
|
---|
[752] | 1013 | //cout << "perobject" << endl;
|
---|
| 1014 | return 1.0f;
|
---|
[728] | 1015 |
|
---|
| 1016 | case PER_TRIANGLE:
|
---|
[1145] | 1017 | {//cout << "pertriangle" << endl;
|
---|
[728] | 1018 | // HACK
|
---|
| 1019 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1020 |
|
---|
| 1021 | // HACK: assume meshes are triangles
|
---|
| 1022 | if (mi->GetMesh())
|
---|
| 1023 | {
|
---|
[1145] | 1024 | return (float)mi->GetMesh()->mFaces.size();
|
---|
[728] | 1025 | }
|
---|
| 1026 | }
|
---|
| 1027 | default:
|
---|
[752] | 1028 | cout << "default" << endl;
|
---|
| 1029 | return 1.0f;
|
---|
[728] | 1030 | }
|
---|
| 1031 |
|
---|
| 1032 | // should not come here
|
---|
[752] | 1033 | return 0.0f;
|
---|
[728] | 1034 | }
|
---|
| 1035 |
|
---|
| 1036 |
|
---|
[704] | 1037 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1038 | const ViewCellContainer &viewCells)
|
---|
| 1039 | {
|
---|
| 1040 | ViewCell *root = currentViewCell;
|
---|
| 1041 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1042 |
|
---|
[704] | 1043 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1044 |
|
---|
[704] | 1045 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1046 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 1047 |
|
---|
[705] | 1048 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 1049 | //const float maxAvgCost = 350;
|
---|
| 1050 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1051 | {
|
---|
[704] | 1052 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1053 |
|
---|
[704] | 1054 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1055 |
|
---|
[704] | 1056 | // remove from vector
|
---|
| 1057 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1058 | neighborhood.pop_back();
|
---|
[705] | 1059 |
|
---|
[713] | 1060 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 1061 | if (!bestViewCell || !root)
|
---|
| 1062 | cout << "warning!!" << endl;
|
---|
[705] | 1063 |
|
---|
[704] | 1064 | // create new root of the hierarchy
|
---|
| 1065 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1066 | }
|
---|
| 1067 |
|
---|
[704] | 1068 | return root;
|
---|
[703] | 1069 | }
|
---|
| 1070 |
|
---|
[704] | 1071 |
|
---|
[713] | 1072 | struct SortableViewCellEntry {
|
---|
| 1073 |
|
---|
[1174] | 1074 | SortableViewCellEntry() {}
|
---|
| 1075 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1076 |
|
---|
[1174] | 1077 | float mValue;
|
---|
| 1078 | ViewCell *mViewCell;
|
---|
| 1079 |
|
---|
| 1080 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1081 | return a.mValue < b.mValue;
|
---|
| 1082 | }
|
---|
[713] | 1083 | };
|
---|
| 1084 |
|
---|
[1174] | 1085 |
|
---|
| 1086 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1087 | const ViewCellContainer &viewCells)
|
---|
[713] | 1088 | {
|
---|
| 1089 |
|
---|
| 1090 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1091 | int i, j;
|
---|
| 1092 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1093 | if (viewCells[i] != currentViewCell)
|
---|
| 1094 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1095 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1096 | viewCells[i]);
|
---|
| 1097 | }
|
---|
| 1098 | neighborhood.resize(j);
|
---|
| 1099 |
|
---|
| 1100 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1101 |
|
---|
| 1102 | ViewCell *root = currentViewCell;
|
---|
| 1103 |
|
---|
| 1104 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1105 |
|
---|
| 1106 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1107 | //-- use priority queue to merge leaf pairs
|
---|
| 1108 |
|
---|
| 1109 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1110 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1111 | {
|
---|
[713] | 1112 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1113 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1114 | // create new root of the hierarchy
|
---|
| 1115 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1116 | // set negative cost so that this view cell gets deleted
|
---|
| 1117 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1118 | }
|
---|
[713] | 1119 |
|
---|
| 1120 | return root;
|
---|
| 1121 | }
|
---|
| 1122 |
|
---|
| 1123 | void
|
---|
| 1124 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1125 | ) const
|
---|
| 1126 | {
|
---|
| 1127 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 1128 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1129 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1130 |
|
---|
| 1131 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1132 | DeleteLocalMergeTree(*it);
|
---|
| 1133 | vci->mChildren.clear();
|
---|
| 1134 | delete vci;
|
---|
| 1135 | }
|
---|
| 1136 | }
|
---|
| 1137 |
|
---|
[1021] | 1138 |
|
---|
[564] | 1139 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1140 | int minPvsSize,
|
---|
[562] | 1141 | int maxPvsSize) const
|
---|
[547] | 1142 | {
|
---|
[569] | 1143 |
|
---|
[1168] | 1144 | if ((vc->GetPvs().CountObjectsInPvs() > maxPvsSize) ||
|
---|
| 1145 | (vc->GetPvs().CountObjectsInPvs() < minPvsSize))
|
---|
[564] | 1146 | {
|
---|
[710] | 1147 | return false;
|
---|
[561] | 1148 | }
|
---|
[570] | 1149 |
|
---|
[710] | 1150 | return true;
|
---|
[547] | 1151 | }
|
---|
| 1152 |
|
---|
| 1153 |
|
---|
[710] | 1154 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1155 | ViewCellContainer &viewCells) const
|
---|
| 1156 | {
|
---|
| 1157 | return 0;
|
---|
| 1158 | };
|
---|
| 1159 |
|
---|
[1021] | 1160 |
|
---|
[697] | 1161 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1162 | const float width) const
|
---|
| 1163 | {
|
---|
[746] | 1164 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1165 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1166 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1167 |
|
---|
| 1168 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1169 | }
|
---|
| 1170 |
|
---|
| 1171 |
|
---|
[904] | 1172 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1173 | PrVs &prvs,
|
---|
| 1174 | const float filterWidth)
|
---|
[697] | 1175 | {
|
---|
[1112] | 1176 |
|
---|
[746] | 1177 |
|
---|
[1112] | 1178 |
|
---|
| 1179 |
|
---|
[746] | 1180 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1181 |
|
---|
[1112] | 1182 | if (mMaxFilterSize < 1) {
|
---|
| 1183 | prvs.mViewCell = currentViewCell;
|
---|
| 1184 | return;
|
---|
| 1185 | }
|
---|
| 1186 |
|
---|
| 1187 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1188 |
|
---|
[746] | 1189 | if (currentViewCell) {
|
---|
[697] | 1190 | ViewCellContainer viewCells;
|
---|
| 1191 | ComputeBoxIntersections(box, viewCells);
|
---|
[1112] | 1192 |
|
---|
| 1193 |
|
---|
[713] | 1194 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1195 | prvs.mViewCell = root;
|
---|
[1112] | 1196 |
|
---|
[746] | 1197 | } else
|
---|
| 1198 | prvs.mViewCell = NULL;
|
---|
| 1199 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1200 | }
|
---|
| 1201 |
|
---|
| 1202 |
|
---|
[581] | 1203 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1204 | {
|
---|
[1002] | 1205 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1206 | }
|
---|
| 1207 |
|
---|
| 1208 |
|
---|
[564] | 1209 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1210 | int minPvs,
|
---|
[562] | 1211 | int maxPvs) const
|
---|
| 1212 | {
|
---|
| 1213 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1214 | }
|
---|
| 1215 |
|
---|
[577] | 1216 |
|
---|
[569] | 1217 | void
|
---|
| 1218 | ViewCellsManager::SetValidity(
|
---|
[570] | 1219 | int minPvsSize,
|
---|
[569] | 1220 | int maxPvsSize) const
|
---|
| 1221 | {
|
---|
[991] | 1222 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1223 |
|
---|
[991] | 1224 |
|
---|
| 1225 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1226 | {
|
---|
| 1227 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1228 | }
|
---|
[569] | 1229 | }
|
---|
[562] | 1230 |
|
---|
[569] | 1231 | void
|
---|
| 1232 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1233 | const float minValid,
|
---|
| 1234 | const float maxValid
|
---|
| 1235 | )
|
---|
| 1236 | {
|
---|
[997] | 1237 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1238 |
|
---|
[1151] | 1239 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1240 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1241 |
|
---|
[1151] | 1242 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1243 | {
|
---|
| 1244 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1245 | }
|
---|
[569] | 1246 | }
|
---|
| 1247 |
|
---|
[1148] | 1248 |
|
---|
[991] | 1249 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1250 | {
|
---|
[991] | 1251 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1252 | int valid = 0;
|
---|
| 1253 |
|
---|
| 1254 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1255 | {
|
---|
| 1256 | if ((*it)->GetValid())
|
---|
| 1257 | ++ valid;
|
---|
| 1258 | }
|
---|
| 1259 |
|
---|
| 1260 | return valid;
|
---|
[569] | 1261 | }
|
---|
| 1262 |
|
---|
[577] | 1263 |
|
---|
| 1264 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1265 | {
|
---|
| 1266 | X3dParser parser;
|
---|
[503] | 1267 |
|
---|
[1004] | 1268 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1269 |
|
---|
[440] | 1270 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1271 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1272 |
|
---|
| 1273 | return success;
|
---|
| 1274 | }
|
---|
| 1275 |
|
---|
[485] | 1276 |
|
---|
[487] | 1277 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1278 | {
|
---|
[542] | 1279 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1280 | return true;
|
---|
| 1281 | }
|
---|
| 1282 |
|
---|
| 1283 |
|
---|
[557] | 1284 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1285 | {
|
---|
[610] | 1286 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1287 | }
|
---|
| 1288 |
|
---|
| 1289 |
|
---|
[490] | 1290 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1291 | {
|
---|
[1444] | 1292 | if (!ViewCellsConstructed())
|
---|
| 1293 | {
|
---|
| 1294 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1295 | }
|
---|
| 1296 | else
|
---|
| 1297 | {
|
---|
| 1298 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1299 | return false;
|
---|
[837] | 1300 |
|
---|
[1444] | 1301 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1302 |
|
---|
| 1303 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1304 | return false;
|
---|
| 1305 | }
|
---|
| 1306 |
|
---|
| 1307 | return true;
|
---|
[490] | 1308 | }
|
---|
| 1309 |
|
---|
[501] | 1310 |
|
---|
[1444] | 1311 | float ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1312 | const bool addRays,
|
---|
| 1313 | const bool storeViewCells)
|
---|
[440] | 1314 | {
|
---|
[1444] | 1315 | // view cells not yet constructed
|
---|
| 1316 | if (!ViewCellsConstructed())
|
---|
| 1317 | return 0.0f;
|
---|
| 1318 |
|
---|
| 1319 | float sum = 0.0f;
|
---|
[564] | 1320 |
|
---|
[1444] | 1321 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1322 |
|
---|
| 1323 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1324 | {
|
---|
| 1325 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1326 | }
|
---|
[503] | 1327 |
|
---|
[1444] | 1328 | return sum;
|
---|
[440] | 1329 | }
|
---|
| 1330 |
|
---|
[485] | 1331 |
|
---|
[479] | 1332 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1333 | {
|
---|
[660] | 1334 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1335 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1336 |
|
---|
| 1337 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1338 | {
|
---|
[660] | 1339 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1340 | }
|
---|
[479] | 1341 | }
|
---|
| 1342 |
|
---|
[485] | 1343 |
|
---|
[580] | 1344 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1345 | float &expectedRenderCost,
|
---|
[580] | 1346 | float &deviation,
|
---|
| 1347 | float &variance,
|
---|
| 1348 | int &totalPvs,
|
---|
| 1349 | float &avgRenderCost)
|
---|
[579] | 1350 | {
|
---|
[1444] | 1351 | ////////////
|
---|
| 1352 | //-- compute expected value
|
---|
[579] | 1353 |
|
---|
| 1354 | totalRenderCost = 0;
|
---|
[580] | 1355 | totalPvs = 0;
|
---|
[579] | 1356 |
|
---|
[1444] | 1357 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1358 |
|
---|
[579] | 1359 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1360 | {
|
---|
| 1361 | ViewCell *vc = *it;
|
---|
[1168] | 1362 | totalRenderCost += vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
| 1363 | totalPvs += (int)vc->GetPvs().CountObjectsInPvs();
|
---|
[579] | 1364 | }
|
---|
| 1365 |
|
---|
[580] | 1366 | // normalize with view space box
|
---|
| 1367 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1368 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1369 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1370 |
|
---|
| 1371 |
|
---|
[1444] | 1372 | ///////////
|
---|
[580] | 1373 | //-- compute standard defiation
|
---|
[1444] | 1374 |
|
---|
[579] | 1375 | variance = 0;
|
---|
[580] | 1376 | deviation = 0;
|
---|
[579] | 1377 |
|
---|
| 1378 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1379 | {
|
---|
| 1380 | ViewCell *vc = *it;
|
---|
| 1381 |
|
---|
[1168] | 1382 | float renderCost = vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
[580] | 1383 | float dev;
|
---|
[579] | 1384 |
|
---|
[580] | 1385 | if (1)
|
---|
[1168] | 1386 | dev = fabs(avgRenderCost - (float)vc->GetPvs().CountObjectsInPvs());
|
---|
[580] | 1387 | else
|
---|
| 1388 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1389 |
|
---|
[580] | 1390 | deviation += dev;
|
---|
| 1391 | variance += dev * dev;
|
---|
[579] | 1392 | }
|
---|
[580] | 1393 |
|
---|
[579] | 1394 | variance /= (float)mViewCells.size();
|
---|
[580] | 1395 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1396 | }
|
---|
| 1397 |
|
---|
| 1398 |
|
---|
| 1399 |
|
---|
[440] | 1400 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1401 | {
|
---|
| 1402 | mViewCells.push_back(viewCell);
|
---|
| 1403 | }
|
---|
| 1404 |
|
---|
[485] | 1405 |
|
---|
[478] | 1406 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1407 | {
|
---|
| 1408 | return viewCell->GetArea();
|
---|
| 1409 | }
|
---|
| 1410 |
|
---|
| 1411 |
|
---|
| 1412 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1413 | {
|
---|
| 1414 | return viewCell->GetVolume();
|
---|
| 1415 | }
|
---|
| 1416 |
|
---|
[485] | 1417 |
|
---|
[1002] | 1418 | void ViewCellsManager::DeriveViewCellsFromObjects(const ObjectContainer &objects,
|
---|
| 1419 | ViewCellContainer &viewCells,
|
---|
| 1420 | const int maxViewCells) const
|
---|
[440] | 1421 | {
|
---|
| 1422 | // maximal max viewcells
|
---|
[503] | 1423 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1424 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1425 |
|
---|
| 1426 | for (int i = 0; i < limit; ++ i)
|
---|
| 1427 | {
|
---|
| 1428 | Intersectable *object = objects[i];
|
---|
[503] | 1429 |
|
---|
[440] | 1430 | // extract the mesh instances
|
---|
| 1431 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1432 | {
|
---|
| 1433 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1434 |
|
---|
| 1435 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1436 | viewCells.push_back(viewCell);
|
---|
| 1437 | }
|
---|
[1001] | 1438 | else if (object->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
| 1439 | {
|
---|
| 1440 | TransformedMeshInstance *mi = dynamic_cast<TransformedMeshInstance *>(object);
|
---|
| 1441 |
|
---|
| 1442 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1002] | 1443 |
|
---|
[1001] | 1444 | // transform mesh
|
---|
[1002] | 1445 | mi->GetTransformedMesh(*mesh);
|
---|
[1001] | 1446 |
|
---|
| 1447 | // create bb + kd tree
|
---|
| 1448 | mesh->Preprocess();
|
---|
| 1449 |
|
---|
| 1450 | ViewCell *viewCell = GenerateViewCell(mi->GetMesh());
|
---|
| 1451 | viewCells.push_back(viewCell);
|
---|
| 1452 |
|
---|
| 1453 | break;
|
---|
| 1454 | }
|
---|
[440] | 1455 | }
|
---|
| 1456 | }
|
---|
| 1457 |
|
---|
[485] | 1458 |
|
---|
[503] | 1459 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1460 | const float height) const
|
---|
| 1461 | {
|
---|
| 1462 | // one mesh per view cell
|
---|
[1001] | 1463 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1464 |
|
---|
[440] | 1465 | //-- construct prism
|
---|
| 1466 |
|
---|
[503] | 1467 | // bottom
|
---|
[440] | 1468 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1469 | // top
|
---|
| 1470 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1471 | // sides
|
---|
| 1472 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1473 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1474 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1475 |
|
---|
| 1476 | //--- extrude new vertices for top of prism
|
---|
| 1477 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1478 |
|
---|
[503] | 1479 | Triangle3 topTri;
|
---|
[440] | 1480 |
|
---|
| 1481 | // add base vertices and calculate top vertices
|
---|
| 1482 | for (int i = 0; i < 3; ++ i)
|
---|
| 1483 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1484 |
|
---|
| 1485 | // add top vertices
|
---|
[440] | 1486 | for (int i = 0; i < 3; ++ i)
|
---|
| 1487 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1488 |
|
---|
[440] | 1489 | mesh->Preprocess();
|
---|
| 1490 |
|
---|
| 1491 | return GenerateViewCell(mesh);
|
---|
| 1492 | }
|
---|
| 1493 |
|
---|
[485] | 1494 |
|
---|
[551] | 1495 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1496 | {
|
---|
| 1497 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1498 |
|
---|
| 1499 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1500 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1501 | {
|
---|
| 1502 | Finalize(*it, createMesh);
|
---|
| 1503 | }
|
---|
[555] | 1504 |
|
---|
| 1505 | mTotalAreaValid = false;
|
---|
[551] | 1506 | }
|
---|
| 1507 |
|
---|
| 1508 |
|
---|
| 1509 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1510 | {
|
---|
| 1511 | // implemented in subclasses
|
---|
| 1512 | }
|
---|
| 1513 |
|
---|
[1001] | 1514 |
|
---|
[1168] | 1515 | /** fast way of merging 2 view cells.
|
---|
| 1516 | */
|
---|
[582] | 1517 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1518 | {
|
---|
[580] | 1519 | // generate parent view cell
|
---|
[752] | 1520 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1521 |
|
---|
[752] | 1522 | vc->GetPvs().Clear();
|
---|
[610] | 1523 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1524 |
|
---|
| 1525 | // merge pvs of right cell
|
---|
[610] | 1526 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1527 |
|
---|
[710] | 1528 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1529 | vc->mChildren.push_back(left);
|
---|
| 1530 | vc->mChildren.push_back(right);
|
---|
| 1531 |
|
---|
[752] | 1532 | // update pvs size
|
---|
[1168] | 1533 | UpdateScalarPvsSize(vc, vc->GetPvs().CountObjectsInPvs(), vc->GetPvs().GetSize());
|
---|
[752] | 1534 |
|
---|
[440] | 1535 | return vc;
|
---|
| 1536 | }
|
---|
| 1537 |
|
---|
[485] | 1538 |
|
---|
[582] | 1539 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1540 | {
|
---|
[752] | 1541 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1542 |
|
---|
| 1543 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1544 |
|
---|
| 1545 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1546 | {
|
---|
| 1547 | // merge pvs
|
---|
[610] | 1548 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1549 | vc->mChildren.push_back(*it);
|
---|
[582] | 1550 | }
|
---|
| 1551 |
|
---|
| 1552 | return vc;
|
---|
| 1553 | }
|
---|
| 1554 |
|
---|
| 1555 |
|
---|
[480] | 1556 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1557 | {
|
---|
| 1558 | mRenderer = renderer;
|
---|
| 1559 | }
|
---|
[441] | 1560 |
|
---|
[485] | 1561 |
|
---|
[580] | 1562 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1563 | {
|
---|
[580] | 1564 | return mViewCellsTree;
|
---|
[440] | 1565 | }
|
---|
| 1566 |
|
---|
| 1567 |
|
---|
| 1568 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1569 | {
|
---|
[444] | 1570 | mVisualizationSamples = visSamples;
|
---|
[440] | 1571 | }
|
---|
| 1572 |
|
---|
[485] | 1573 |
|
---|
[440] | 1574 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1575 | {
|
---|
| 1576 | mConstructionSamples = constructionSamples;
|
---|
| 1577 | }
|
---|
| 1578 |
|
---|
[485] | 1579 |
|
---|
[574] | 1580 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1581 | {
|
---|
| 1582 | mInitialSamples = initialSamples;
|
---|
| 1583 | }
|
---|
| 1584 |
|
---|
| 1585 |
|
---|
[440] | 1586 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1587 | {
|
---|
| 1588 | mPostProcessSamples = postProcessSamples;
|
---|
| 1589 | }
|
---|
| 1590 |
|
---|
[485] | 1591 |
|
---|
[440] | 1592 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1593 | {
|
---|
| 1594 | return mVisualizationSamples;
|
---|
| 1595 | }
|
---|
| 1596 |
|
---|
[485] | 1597 |
|
---|
[440] | 1598 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1599 | {
|
---|
| 1600 | return mConstructionSamples;
|
---|
| 1601 | }
|
---|
| 1602 |
|
---|
[485] | 1603 |
|
---|
[440] | 1604 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1605 | {
|
---|
| 1606 | return mPostProcessSamples;
|
---|
| 1607 | }
|
---|
| 1608 |
|
---|
[485] | 1609 |
|
---|
[719] | 1610 | void ViewCellsManager::UpdatePvs()
|
---|
| 1611 | {
|
---|
[720] | 1612 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1613 | return;
|
---|
| 1614 |
|
---|
| 1615 | mViewCellPvsIsUpdated = true;
|
---|
| 1616 |
|
---|
| 1617 | ViewCellContainer leaves;
|
---|
| 1618 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1619 |
|
---|
| 1620 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1621 |
|
---|
| 1622 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1623 | {
|
---|
| 1624 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1625 | }
|
---|
| 1626 | }
|
---|
| 1627 |
|
---|
| 1628 |
|
---|
[485] | 1629 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1630 | {
|
---|
[1199] | 1631 | // update pvs of view cells tree if necessary
|
---|
| 1632 | UpdatePvs();
|
---|
| 1633 |
|
---|
| 1634 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1635 |
|
---|
| 1636 | stat.viewcells = 0;
|
---|
| 1637 | stat.minPvs = 100000000;
|
---|
| 1638 | stat.maxPvs = 0;
|
---|
| 1639 | stat.avgPvs = 0.0f;
|
---|
| 1640 |
|
---|
| 1641 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1642 | {
|
---|
[1199] | 1643 | ViewCell *viewcell = *it;
|
---|
[1121] | 1644 |
|
---|
[1199] | 1645 | // bool mCountKdPvs = false;
|
---|
| 1646 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
[1121] | 1647 |
|
---|
| 1648 |
|
---|
[1199] | 1649 | if (pvsSize < stat.minPvs)
|
---|
| 1650 | stat.minPvs = pvsSize;
|
---|
| 1651 | if (pvsSize > stat.maxPvs)
|
---|
| 1652 | stat.maxPvs = pvsSize;
|
---|
| 1653 |
|
---|
| 1654 | stat.avgPvs += pvsSize;
|
---|
| 1655 |
|
---|
| 1656 | ++ stat.viewcells;
|
---|
[719] | 1657 | }
|
---|
[1199] | 1658 |
|
---|
| 1659 | if (stat.viewcells)
|
---|
| 1660 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1661 | }
|
---|
| 1662 |
|
---|
[485] | 1663 |
|
---|
[480] | 1664 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1665 | {
|
---|
| 1666 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1667 | PvsStatistics pvsStat;
|
---|
| 1668 | GetPvsStatistics(pvsStat);
|
---|
| 1669 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1670 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1671 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1672 | }
|
---|
| 1673 |
|
---|
[485] | 1674 |
|
---|
[532] | 1675 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1676 | {
|
---|
| 1677 | return 0;
|
---|
| 1678 | }
|
---|
| 1679 |
|
---|
[547] | 1680 |
|
---|
[468] | 1681 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1682 | {
|
---|
| 1683 | return mViewCells;
|
---|
| 1684 | }
|
---|
| 1685 |
|
---|
[485] | 1686 |
|
---|
[487] | 1687 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1688 | {
|
---|
[542] | 1689 | mViewSpaceBox = box;
|
---|
[1074] | 1690 |
|
---|
[1027] | 1691 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1692 | CreateClipPlane();
|
---|
[1027] | 1693 | // the total area of the view space has changed
|
---|
[577] | 1694 | mTotalAreaValid = false;
|
---|
[487] | 1695 | }
|
---|
| 1696 |
|
---|
| 1697 |
|
---|
[660] | 1698 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1699 | {
|
---|
| 1700 | int axis = 0;
|
---|
[667] | 1701 | float pos;
|
---|
[1418] | 1702 | bool orientation;
|
---|
| 1703 | Vector3 absPos;
|
---|
[591] | 1704 |
|
---|
[1004] | 1705 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1706 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1707 |
|
---|
[1418] | 1708 | if (axis < 0)
|
---|
| 1709 | {
|
---|
| 1710 | axis = -axis;
|
---|
| 1711 | orientation = false;
|
---|
| 1712 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 1713 | }
|
---|
| 1714 | else
|
---|
| 1715 | {
|
---|
| 1716 | orientation = true;
|
---|
| 1717 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1718 | }
|
---|
| 1719 |
|
---|
[1416] | 1720 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 1721 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 1722 | }
|
---|
| 1723 |
|
---|
| 1724 |
|
---|
[519] | 1725 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1726 | {
|
---|
[542] | 1727 | return mViewSpaceBox;
|
---|
[519] | 1728 | }
|
---|
| 1729 |
|
---|
| 1730 |
|
---|
[480] | 1731 | void ViewCellsManager::ResetViewCells()
|
---|
| 1732 | {
|
---|
[720] | 1733 | // recollect view cells
|
---|
[480] | 1734 | mViewCells.clear();
|
---|
| 1735 | CollectViewCells();
|
---|
[590] | 1736 |
|
---|
[720] | 1737 | // stats are computed once more
|
---|
[480] | 1738 | EvaluateViewCellsStats();
|
---|
[590] | 1739 |
|
---|
[520] | 1740 | // has to be recomputed
|
---|
[480] | 1741 | mTotalAreaValid = false;
|
---|
| 1742 | }
|
---|
| 1743 |
|
---|
[485] | 1744 |
|
---|
[547] | 1745 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1746 | {
|
---|
| 1747 | return mMaxPvsSize;
|
---|
| 1748 | }
|
---|
| 1749 |
|
---|
[590] | 1750 |
|
---|
[563] | 1751 | void
|
---|
| 1752 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1753 | {
|
---|
| 1754 | if (!ViewCellsConstructed())
|
---|
| 1755 | return;
|
---|
[564] | 1756 |
|
---|
[563] | 1757 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1758 |
|
---|
[563] | 1759 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1760 | AddSampleContributions(*(*it));
|
---|
| 1761 | }
|
---|
| 1762 | }
|
---|
[547] | 1763 |
|
---|
[581] | 1764 |
|
---|
[562] | 1765 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1766 | {
|
---|
| 1767 | return mMinPvsSize;
|
---|
| 1768 | }
|
---|
| 1769 |
|
---|
| 1770 |
|
---|
| 1771 |
|
---|
[561] | 1772 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1773 | {
|
---|
| 1774 | return mMaxPvsRatio;
|
---|
| 1775 | }
|
---|
| 1776 |
|
---|
| 1777 |
|
---|
[563] | 1778 | void
|
---|
| 1779 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1780 | {
|
---|
[563] | 1781 | // assumes viewcells have been stored...
|
---|
| 1782 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1783 | ViewCellContainer::const_iterator it;
|
---|
| 1784 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1785 | ViewCell *viewcell = *it;
|
---|
[569] | 1786 | if (viewcell->GetValid()) {
|
---|
| 1787 | // if ray not outside of view space
|
---|
| 1788 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1789 | }
|
---|
[563] | 1790 | }
|
---|
| 1791 | }
|
---|
[503] | 1792 |
|
---|
[574] | 1793 |
|
---|
[1159] | 1794 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 1795 | const bool addRays,
|
---|
| 1796 | const bool storeViewCells)
|
---|
[563] | 1797 | {
|
---|
[570] | 1798 | ViewCellContainer viewcells;
|
---|
[564] | 1799 |
|
---|
[570] | 1800 | ray.mPvsContribution = 0;
|
---|
| 1801 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1802 |
|
---|
[570] | 1803 | static Ray hray;
|
---|
[564] | 1804 | hray.Init(ray);
|
---|
| 1805 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1806 | //Ray hray(ray);
|
---|
| 1807 |
|
---|
| 1808 | float tmin = 0, tmax = 1.0;
|
---|
| 1809 |
|
---|
| 1810 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1811 | return 0;
|
---|
[564] | 1812 |
|
---|
| 1813 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1814 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1815 |
|
---|
[1291] | 1816 | ViewCell::NewMail();
|
---|
| 1817 |
|
---|
[1006] | 1818 | // traverse the view space subdivision
|
---|
[564] | 1819 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1820 |
|
---|
[574] | 1821 | if (storeViewCells)
|
---|
[1155] | 1822 | { // copy viewcells memory efficiently
|
---|
[570] | 1823 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1824 | ray.mViewCells = viewcells;
|
---|
| 1825 | }
|
---|
[564] | 1826 |
|
---|
[570] | 1827 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1828 |
|
---|
[664] | 1829 | for (; it != viewcells.end(); ++ it)
|
---|
| 1830 | {
|
---|
| 1831 | ViewCell *viewcell = *it;
|
---|
[694] | 1832 |
|
---|
[708] | 1833 | if (viewcell->GetValid())
|
---|
[664] | 1834 | {
|
---|
| 1835 | // if ray not outside of view space
|
---|
| 1836 | float contribution;
|
---|
[1291] | 1837 |
|
---|
| 1838 | if (ray.mTerminationObject)
|
---|
| 1839 | {
|
---|
[1473] | 1840 | if (viewcell->GetPvs().GetSampleContribution(
|
---|
| 1841 | ray.mTerminationObject,
|
---|
| 1842 | ray.mPdf,
|
---|
| 1843 | contribution))
|
---|
[1291] | 1844 | {
|
---|
| 1845 | ++ ray.mPvsContribution;
|
---|
| 1846 | ray.mRelativePvsContribution += contribution;
|
---|
| 1847 | }
|
---|
[664] | 1848 | }
|
---|
[1291] | 1849 |
|
---|
| 1850 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
| 1851 |
|
---|
[840] | 1852 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1853 | // made in one direction!!!
|
---|
| 1854 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1291] | 1855 |
|
---|
[666] | 1856 | if (ray.mOriginObject &&
|
---|
| 1857 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1858 | ray.mPdf,
|
---|
| 1859 | contribution))
|
---|
| 1860 | {
|
---|
| 1861 | ++ ray.mPvsContribution;
|
---|
| 1862 | ray.mRelativePvsContribution += contribution;
|
---|
| 1863 | }
|
---|
[718] | 1864 | #endif
|
---|
[664] | 1865 | }
|
---|
[569] | 1866 | }
|
---|
[564] | 1867 |
|
---|
[1155] | 1868 | // if addrays is true, sampled entities are stored in the pvs
|
---|
[664] | 1869 | if (addRays)
|
---|
| 1870 | {
|
---|
| 1871 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1872 | {
|
---|
| 1873 | ViewCell *viewcell = *it;
|
---|
| 1874 |
|
---|
[706] | 1875 | if (viewcell->GetValid())
|
---|
[664] | 1876 | {
|
---|
[1486] | 1877 | // if view point is valid, add new object to the pvs
|
---|
[1155] | 1878 | if (ray.mTerminationObject)
|
---|
| 1879 | {
|
---|
[1159] | 1880 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1881 | }
|
---|
[1166] | 1882 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 1883 | if (ray.mOriginObject)
|
---|
[1159] | 1884 | {
|
---|
[666] | 1885 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 1886 | }
|
---|
[718] | 1887 | #endif
|
---|
[664] | 1888 | }
|
---|
| 1889 | }
|
---|
[563] | 1890 | }
|
---|
[570] | 1891 |
|
---|
| 1892 | return ray.mRelativePvsContribution;
|
---|
[468] | 1893 | }
|
---|
| 1894 |
|
---|
| 1895 |
|
---|
[469] | 1896 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1897 | const int maxSize,
|
---|
[503] | 1898 | VssRayContainer &usedRays,
|
---|
[485] | 1899 | VssRayContainer *savedRays) const
|
---|
[469] | 1900 | {
|
---|
[485] | 1901 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1902 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1903 |
|
---|
[485] | 1904 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1905 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1906 | {
|
---|
[473] | 1907 | if (Random(1.0f) < prop)
|
---|
[485] | 1908 | usedRays.push_back(*it);
|
---|
| 1909 | else if (savedRays)
|
---|
| 1910 | savedRays->push_back(*it);
|
---|
[469] | 1911 | }
|
---|
| 1912 | }
|
---|
| 1913 |
|
---|
[477] | 1914 |
|
---|
[728] | 1915 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1916 | {
|
---|
[1145] | 1917 | return (float)mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1918 | }
|
---|
| 1919 |
|
---|
| 1920 |
|
---|
[477] | 1921 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1922 | {
|
---|
| 1923 | // if already computed
|
---|
| 1924 | if (mTotalAreaValid)
|
---|
[728] | 1925 | {
|
---|
[470] | 1926 | return mTotalArea;
|
---|
[728] | 1927 | }
|
---|
[470] | 1928 |
|
---|
| 1929 | mTotalArea = 0;
|
---|
| 1930 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1931 |
|
---|
| 1932 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1933 | {
|
---|
| 1934 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1935 | mTotalArea += GetArea(*it);
|
---|
[480] | 1936 | }
|
---|
| 1937 |
|
---|
[470] | 1938 | mTotalAreaValid = true;
|
---|
| 1939 |
|
---|
| 1940 | return mTotalArea;
|
---|
| 1941 | }
|
---|
| 1942 |
|
---|
[482] | 1943 |
|
---|
[475] | 1944 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1945 | {
|
---|
[660] | 1946 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1947 | }
|
---|
| 1948 |
|
---|
[477] | 1949 |
|
---|
[508] | 1950 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 1951 | {
|
---|
[651] | 1952 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 1953 | {
|
---|
[651] | 1954 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 1955 | }
|
---|
| 1956 | else // no view cells tree, handle view cells "myself"
|
---|
| 1957 | {
|
---|
[651] | 1958 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[1284] | 1959 | {
|
---|
[651] | 1960 | mViewCells[i]->SetId(i);
|
---|
[1284] | 1961 | }
|
---|
| 1962 | }
|
---|
[508] | 1963 | }
|
---|
| 1964 |
|
---|
[1416] | 1965 |
|
---|
| 1966 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 1967 | const AxisAlignedBox3 *sceneBox,
|
---|
| 1968 | const AxisAlignedPlane *clipPlane
|
---|
| 1969 | ) const
|
---|
[508] | 1970 | {
|
---|
[482] | 1971 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1972 |
|
---|
| 1973 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1974 | {
|
---|
[574] | 1975 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 1976 | {
|
---|
[801] | 1977 | ExportColor(exporter, *it);
|
---|
[1416] | 1978 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 1979 | }
|
---|
[482] | 1980 | }
|
---|
| 1981 | }
|
---|
| 1982 |
|
---|
| 1983 |
|
---|
[517] | 1984 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 1985 | {
|
---|
| 1986 | // convert to meshes
|
---|
| 1987 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1988 |
|
---|
| 1989 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1990 | {
|
---|
[517] | 1991 | if (!(*it)->GetMesh())
|
---|
[1001] | 1992 | {
|
---|
[517] | 1993 | CreateMesh(*it);
|
---|
[1001] | 1994 | }
|
---|
[503] | 1995 | }
|
---|
| 1996 | }
|
---|
| 1997 |
|
---|
[508] | 1998 |
|
---|
[944] | 1999 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2000 | const bool exportPvs,
|
---|
| 2001 | const ObjectContainer &objects)
|
---|
[564] | 2002 | {
|
---|
[508] | 2003 | return false;
|
---|
| 2004 | }
|
---|
| 2005 |
|
---|
| 2006 |
|
---|
[610] | 2007 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2008 | {
|
---|
[610] | 2009 | mNumActiveViewCells = n;
|
---|
| 2010 | mViewCells.clear();
|
---|
| 2011 | CollectViewCells();
|
---|
| 2012 | }
|
---|
[508] | 2013 |
|
---|
| 2014 |
|
---|
[660] | 2015 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2016 | {
|
---|
[882] | 2017 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2018 | // active view cells
|
---|
[660] | 2019 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2020 |
|
---|
[660] | 2021 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2022 | {
|
---|
[881] | 2023 | ViewCellContainer leaves;
|
---|
| 2024 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2025 |
|
---|
| 2026 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2027 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2028 | {
|
---|
| 2029 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2030 | }
|
---|
[660] | 2031 | }
|
---|
| 2032 | }
|
---|
[508] | 2033 |
|
---|
[840] | 2034 |
|
---|
| 2035 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2036 | {
|
---|
| 2037 | return mMaxFilterSize;
|
---|
| 2038 | }
|
---|
| 2039 |
|
---|
[1001] | 2040 |
|
---|
[840] | 2041 | static const bool USE_ASCII = true;
|
---|
| 2042 |
|
---|
[1001] | 2043 |
|
---|
[840] | 2044 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2045 | const ObjectContainer &objects) const
|
---|
| 2046 | {
|
---|
| 2047 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2048 |
|
---|
| 2049 | if (USE_ASCII)
|
---|
| 2050 | {
|
---|
| 2051 | ofstream boxesOut(filename.c_str());
|
---|
| 2052 | if (!boxesOut.is_open())
|
---|
| 2053 | return false;
|
---|
| 2054 |
|
---|
| 2055 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2056 | {
|
---|
| 2057 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2058 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2059 |
|
---|
| 2060 | boxesOut << mi->GetId() << " "
|
---|
| 2061 | << box.Min().x << " "
|
---|
| 2062 | << box.Min().y << " "
|
---|
| 2063 | << box.Min().z << " "
|
---|
| 2064 | << box.Max().x << " "
|
---|
| 2065 | << box.Max().y << " "
|
---|
| 2066 | << box.Max().z << endl;
|
---|
| 2067 | }
|
---|
| 2068 |
|
---|
| 2069 | boxesOut.close();
|
---|
| 2070 | }
|
---|
| 2071 | else
|
---|
| 2072 | {
|
---|
| 2073 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2074 |
|
---|
| 2075 | if (!boxesOut.is_open())
|
---|
| 2076 | return false;
|
---|
| 2077 |
|
---|
| 2078 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2079 | {
|
---|
| 2080 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2081 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2082 | Vector3 bmin = box.Min();
|
---|
| 2083 | Vector3 bmax = box.Max();
|
---|
[850] | 2084 | int id = mi->GetId();
|
---|
[840] | 2085 |
|
---|
[850] | 2086 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2087 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2088 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2089 | }
|
---|
| 2090 |
|
---|
| 2091 | boxesOut.close();
|
---|
| 2092 | }
|
---|
| 2093 |
|
---|
| 2094 | return true;
|
---|
| 2095 | }
|
---|
| 2096 |
|
---|
| 2097 |
|
---|
[850] | 2098 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2099 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2100 | {
|
---|
[850] | 2101 | Vector3 bmin, bmax;
|
---|
| 2102 | int id;
|
---|
[840] | 2103 |
|
---|
[850] | 2104 | if (USE_ASCII)
|
---|
[840] | 2105 | {
|
---|
[850] | 2106 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2107 |
|
---|
[850] | 2108 | if (!boxesIn.is_open())
|
---|
[840] | 2109 | {
|
---|
[850] | 2110 | cout << "failed to open file " << filename << endl;
|
---|
| 2111 | return false;
|
---|
[840] | 2112 | }
|
---|
[850] | 2113 |
|
---|
| 2114 | string buf;
|
---|
| 2115 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2116 | {
|
---|
[850] | 2117 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2118 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2119 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2120 |
|
---|
| 2121 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2122 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2123 | // HACK: set bounding box to new box
|
---|
| 2124 | //mi->mBox = box;
|
---|
| 2125 |
|
---|
| 2126 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2127 | }
|
---|
| 2128 |
|
---|
[850] | 2129 | boxesIn.close();
|
---|
[840] | 2130 | }
|
---|
[850] | 2131 | else
|
---|
[840] | 2132 | {
|
---|
[850] | 2133 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2134 |
|
---|
[850] | 2135 | if (!boxesIn.is_open())
|
---|
| 2136 | return false;
|
---|
| 2137 |
|
---|
| 2138 | while (1)
|
---|
[840] | 2139 | {
|
---|
[850] | 2140 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2141 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2142 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2143 |
|
---|
| 2144 | if (boxesIn.eof())
|
---|
| 2145 | break;
|
---|
| 2146 |
|
---|
| 2147 |
|
---|
| 2148 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2149 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2150 |
|
---|
| 2151 | // HACK: set bounding box to new box
|
---|
| 2152 | //mi->mBox = box;
|
---|
| 2153 | //boxes.push_back(mi);
|
---|
| 2154 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2155 | }
|
---|
| 2156 |
|
---|
[850] | 2157 | boxesIn.close();
|
---|
[840] | 2158 | }
|
---|
| 2159 |
|
---|
| 2160 | return true;
|
---|
[850] | 2161 | }
|
---|
[840] | 2162 |
|
---|
[931] | 2163 |
|
---|
| 2164 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2165 | {
|
---|
| 2166 | return mFilterWidth;
|
---|
| 2167 | }
|
---|
| 2168 |
|
---|
| 2169 |
|
---|
| 2170 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2171 | {
|
---|
| 2172 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2173 | }
|
---|
| 2174 |
|
---|
| 2175 |
|
---|
[1168] | 2176 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
| 2177 | const int pvsSize,
|
---|
| 2178 | const int entriesInPvs) const
|
---|
[1002] | 2179 | {
|
---|
| 2180 | vc->mPvsSize = pvsSize;
|
---|
[1160] | 2181 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2182 |
|
---|
[1002] | 2183 | vc->mPvsSizeValid = true;
|
---|
| 2184 | }
|
---|
| 2185 |
|
---|
| 2186 |
|
---|
[1021] | 2187 | void
|
---|
| 2188 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2189 | KdTree *kdTree,
|
---|
| 2190 | const float viewSpaceFilterSize,
|
---|
| 2191 | const float spatialFilterSize,
|
---|
| 2192 | ObjectPvs &pvs
|
---|
| 2193 | )
|
---|
| 2194 | {
|
---|
| 2195 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2196 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2197 | // in the pvs
|
---|
| 2198 |
|
---|
| 2199 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2200 | // and compute the pvs union
|
---|
| 2201 |
|
---|
| 2202 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2203 | // Vector3 center = m->mBox.Center();
|
---|
| 2204 |
|
---|
| 2205 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2206 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 2207 | if (!ViewCellsConstructed())
|
---|
| 2208 | return;
|
---|
| 2209 |
|
---|
| 2210 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
| 2211 |
|
---|
| 2212 | bool usePrVS = false;
|
---|
| 2213 |
|
---|
| 2214 | if (!usePrVS) {
|
---|
| 2215 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2216 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 2217 |
|
---|
| 2218 | ViewCellContainer viewCells;
|
---|
| 2219 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2220 |
|
---|
| 2221 | // cout<<"box="<<box<<endl;
|
---|
| 2222 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2223 |
|
---|
| 2224 | int i;
|
---|
| 2225 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2226 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2227 | pvs.Merge((*it)->GetPvs());
|
---|
| 2228 | }
|
---|
| 2229 | } else {
|
---|
| 2230 | PrVs prvs;
|
---|
| 2231 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2232 |
|
---|
| 2233 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2234 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2235 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2236 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2237 | }
|
---|
| 2238 | } else
|
---|
| 2239 | pvs = viewCell->GetPvs();
|
---|
| 2240 |
|
---|
| 2241 | if (spatialFilterSize >=0.0f)
|
---|
| 2242 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2243 |
|
---|
| 2244 | }
|
---|
| 2245 |
|
---|
| 2246 |
|
---|
| 2247 |
|
---|
| 2248 | void
|
---|
| 2249 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2250 | const float relViewSpaceFilterSize,
|
---|
| 2251 | const float relSpatialFilterSize
|
---|
| 2252 | )
|
---|
| 2253 | {
|
---|
| 2254 |
|
---|
| 2255 | if (!ViewCellsConstructed())
|
---|
| 2256 | return;
|
---|
| 2257 |
|
---|
| 2258 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2259 |
|
---|
| 2260 | ObjectPvs *newPvs;
|
---|
| 2261 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 2262 |
|
---|
| 2263 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2264 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 2265 |
|
---|
| 2266 | int i;
|
---|
| 2267 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2268 | ApplyFilter(*it,
|
---|
| 2269 | kdTree,
|
---|
| 2270 | viewSpaceFilterSize,
|
---|
| 2271 | spatialFilterSize,
|
---|
| 2272 | newPvs[i]
|
---|
| 2273 | );
|
---|
| 2274 | }
|
---|
| 2275 |
|
---|
| 2276 | // now replace all pvss
|
---|
| 2277 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2278 |
|
---|
| 2279 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2280 | pvs.Clear();
|
---|
| 2281 | pvs = newPvs[i];
|
---|
| 2282 | newPvs[i].Clear();
|
---|
| 2283 | }
|
---|
| 2284 |
|
---|
| 2285 | delete [] newPvs;
|
---|
| 2286 | }
|
---|
| 2287 |
|
---|
| 2288 |
|
---|
| 2289 |
|
---|
| 2290 |
|
---|
| 2291 | void
|
---|
| 2292 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2293 | KdTree *kdTree,
|
---|
| 2294 | const float spatialFilterSize,
|
---|
| 2295 | ObjectPvs &pvs
|
---|
| 2296 | )
|
---|
| 2297 | {
|
---|
| 2298 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2299 | // extended boxes of visible objects
|
---|
| 2300 |
|
---|
| 2301 | Intersectable::NewMail();
|
---|
| 2302 |
|
---|
[1189] | 2303 | ObjectPvsMap::const_iterator oi;
|
---|
[1021] | 2304 |
|
---|
[1189] | 2305 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi)
|
---|
| 2306 | {
|
---|
| 2307 | Intersectable *object = (*oi).first;
|
---|
| 2308 | object->Mail();
|
---|
[1021] | 2309 | }
|
---|
| 2310 |
|
---|
| 2311 | ObjectPvs nPvs;
|
---|
[1189] | 2312 | int nPvsSize = 0;
|
---|
[1021] | 2313 | // now go through the pvs again
|
---|
| 2314 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2315 | Intersectable *object = (*oi).first;
|
---|
| 2316 |
|
---|
| 2317 | // Vector3 center = object->GetBox().Center();
|
---|
| 2318 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2319 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2320 |
|
---|
| 2321 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2322 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2323 |
|
---|
| 2324 | ObjectContainer objects;
|
---|
| 2325 |
|
---|
| 2326 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2327 | kdTree->CollectObjects(box,
|
---|
| 2328 | objects);
|
---|
| 2329 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2330 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2331 | for (; noi != objects.end(); ++noi) {
|
---|
| 2332 | Intersectable *o = *noi;
|
---|
| 2333 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2334 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2335 | nPvsSize++;
|
---|
| 2336 | }
|
---|
| 2337 | }
|
---|
| 2338 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2339 | pvs.Merge(nPvs);
|
---|
| 2340 | }
|
---|
| 2341 |
|
---|
| 2342 |
|
---|
| 2343 | void ViewCellsManager::ExportColor(Exporter *exporter, ViewCell *vc) const
|
---|
| 2344 | {
|
---|
| 2345 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2346 |
|
---|
| 2347 | float importance = 0;
|
---|
| 2348 | static Material m;
|
---|
| 2349 |
|
---|
| 2350 | switch (mColorCode)
|
---|
| 2351 | {
|
---|
| 2352 | case 0: // Random
|
---|
| 2353 | {
|
---|
| 2354 | if (vcValid)
|
---|
| 2355 | {
|
---|
| 2356 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2357 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2358 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2359 | }
|
---|
| 2360 | else
|
---|
| 2361 | {
|
---|
| 2362 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2363 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2364 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2365 | }
|
---|
| 2366 |
|
---|
| 2367 | exporter->SetForcedMaterial(m);
|
---|
| 2368 | return;
|
---|
| 2369 | }
|
---|
| 2370 |
|
---|
| 2371 | case 1: // pvs
|
---|
| 2372 | {
|
---|
| 2373 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2374 | {
|
---|
| 2375 | importance =
|
---|
[1142] | 2376 | (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
[1121] | 2377 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2378 | }
|
---|
[1021] | 2379 | }
|
---|
| 2380 | break;
|
---|
| 2381 | case 2: // merges
|
---|
| 2382 | {
|
---|
| 2383 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2384 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2385 | }
|
---|
| 2386 | break;
|
---|
| 2387 | #if 0
|
---|
| 2388 | case 3: // merge tree differene
|
---|
| 2389 | {
|
---|
| 2390 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2391 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2392 |
|
---|
| 2393 | }
|
---|
| 2394 | break;
|
---|
| 2395 | #endif
|
---|
| 2396 | default:
|
---|
| 2397 | break;
|
---|
| 2398 | }
|
---|
| 2399 |
|
---|
| 2400 | // special color code for invalid view cells
|
---|
| 2401 | m.mDiffuseColor.r = importance;
|
---|
| 2402 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2403 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2404 |
|
---|
| 2405 | //Debug << "importance: " << importance << endl;
|
---|
| 2406 | exporter->SetForcedMaterial(m);
|
---|
| 2407 | }
|
---|
| 2408 |
|
---|
| 2409 |
|
---|
[1022] | 2410 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2411 | vector<MergeCandidate> &candidates)
|
---|
| 2412 | {
|
---|
| 2413 | // implemented in subclasses
|
---|
| 2414 | }
|
---|
| 2415 |
|
---|
[1047] | 2416 |
|
---|
[1168] | 2417 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2418 | {
|
---|
| 2419 | // terminate traversal
|
---|
| 2420 | if (root->IsLeaf())
|
---|
| 2421 | {
|
---|
| 2422 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2423 | pvs = root->GetPvs();
|
---|
| 2424 | UpdateScalarPvsSize(root, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2425 |
|
---|
| 2426 | return;
|
---|
| 2427 | }
|
---|
| 2428 |
|
---|
| 2429 | //-- interior node => propagate pvs up
|
---|
| 2430 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 2431 | interior->GetPvs().Clear();
|
---|
| 2432 | pvs.Clear();
|
---|
| 2433 | vector<ObjectPvs> pvsList;
|
---|
| 2434 |
|
---|
| 2435 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 2436 |
|
---|
| 2437 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 2438 | {
|
---|
| 2439 | ObjectPvs objPvs;
|
---|
| 2440 |
|
---|
| 2441 | //-- recursivly compute child pvss
|
---|
| 2442 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 2443 |
|
---|
| 2444 | // store pvs in vector
|
---|
| 2445 | pvsList.push_back(objPvs);
|
---|
| 2446 | }
|
---|
| 2447 |
|
---|
| 2448 | #if 1
|
---|
| 2449 | Intersectable::NewMail();
|
---|
| 2450 |
|
---|
| 2451 | //-- faster way of computing pvs:
|
---|
| 2452 | // construct merged pvs by adding
|
---|
| 2453 | // and only those of the next pvs which were not mailed.
|
---|
| 2454 | // note: sumpdf is not correct!!
|
---|
| 2455 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2456 |
|
---|
| 2457 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2458 | {
|
---|
| 2459 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2460 |
|
---|
| 2461 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2462 | {
|
---|
| 2463 | Intersectable *intersect = (*pit).first;
|
---|
| 2464 |
|
---|
| 2465 | if (!intersect->Mailed())
|
---|
| 2466 | {
|
---|
| 2467 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2468 | intersect->Mail();
|
---|
| 2469 | }
|
---|
| 2470 | }
|
---|
| 2471 | }
|
---|
| 2472 |
|
---|
| 2473 | // store pvs in this node
|
---|
| 2474 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2475 | {
|
---|
| 2476 | interior->SetPvs(pvs);
|
---|
| 2477 | }
|
---|
| 2478 |
|
---|
| 2479 | // set new pvs size
|
---|
| 2480 | UpdateScalarPvsSize(interior, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2481 |
|
---|
| 2482 |
|
---|
[1178] | 2483 | #else // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2484 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2485 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2486 | #endif
|
---|
| 2487 | }
|
---|
| 2488 |
|
---|
[1174] | 2489 |
|
---|
| 2490 |
|
---|
[1145] | 2491 | /*******************************************************************/
|
---|
| 2492 | /* BspViewCellsManager implementation */
|
---|
| 2493 | /*******************************************************************/
|
---|
[440] | 2494 |
|
---|
[482] | 2495 |
|
---|
[1264] | 2496 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 2497 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 2498 | {
|
---|
[1004] | 2499 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2500 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 2501 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 2502 | }
|
---|
| 2503 |
|
---|
[462] | 2504 |
|
---|
[440] | 2505 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2506 | {
|
---|
| 2507 | return mBspTree->GetRoot() != NULL;
|
---|
| 2508 | }
|
---|
| 2509 |
|
---|
[480] | 2510 |
|
---|
[440] | 2511 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2512 | {
|
---|
| 2513 | return new BspViewCell(mesh);
|
---|
| 2514 | }
|
---|
| 2515 |
|
---|
[480] | 2516 |
|
---|
[574] | 2517 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2518 | const VssRayContainer &rays)
|
---|
[440] | 2519 | {
|
---|
[441] | 2520 | // if view cells were already constructed
|
---|
[440] | 2521 | if (ViewCellsConstructed())
|
---|
| 2522 | return 0;
|
---|
| 2523 |
|
---|
| 2524 | int sampleContributions = 0;
|
---|
[503] | 2525 |
|
---|
[469] | 2526 | // construct view cells using the collected samples
|
---|
| 2527 | RayContainer constructionRays;
|
---|
| 2528 | VssRayContainer savedRays;
|
---|
[440] | 2529 |
|
---|
[574] | 2530 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 2531 |
|
---|
[469] | 2532 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2533 |
|
---|
[473] | 2534 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 2535 |
|
---|
[469] | 2536 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2537 | {
|
---|
[473] | 2538 | if (Random(1.0f) < prop)
|
---|
[469] | 2539 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2540 | else
|
---|
| 2541 | savedRays.push_back(*it);
|
---|
| 2542 | }
|
---|
[440] | 2543 |
|
---|
[503] | 2544 | if (mViewCells.empty())
|
---|
| 2545 | {
|
---|
| 2546 | // no view cells loaded
|
---|
[587] | 2547 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2548 | // collect final view cells
|
---|
| 2549 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2550 | }
|
---|
[469] | 2551 | else
|
---|
| 2552 | {
|
---|
| 2553 | mBspTree->Construct(mViewCells);
|
---|
| 2554 | }
|
---|
| 2555 |
|
---|
| 2556 | // destroy rays created only for construction
|
---|
| 2557 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2558 |
|
---|
[440] | 2559 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 2560 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2561 |
|
---|
[469] | 2562 | // recast rest of the rays
|
---|
[649] | 2563 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2564 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2565 |
|
---|
[719] | 2566 | // real meshes are contructed at this stage
|
---|
| 2567 | if (0)
|
---|
| 2568 | {
|
---|
| 2569 | cout << "finalizing view cells ... ";
|
---|
| 2570 | FinalizeViewCells(true);
|
---|
| 2571 | cout << "finished" << endl;
|
---|
| 2572 | }
|
---|
| 2573 |
|
---|
[440] | 2574 | return sampleContributions;
|
---|
| 2575 | }
|
---|
| 2576 |
|
---|
[503] | 2577 |
|
---|
[480] | 2578 | void BspViewCellsManager::CollectViewCells()
|
---|
| 2579 | {
|
---|
[587] | 2580 | // view cells tree constructed
|
---|
| 2581 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 2582 | {
|
---|
[587] | 2583 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2584 | }
|
---|
| 2585 | else
|
---|
| 2586 | {
|
---|
| 2587 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 2588 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 2589 | mNumActiveViewCells);
|
---|
[587] | 2590 | }
|
---|
[480] | 2591 | }
|
---|
[468] | 2592 |
|
---|
[503] | 2593 |
|
---|
[471] | 2594 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2595 | {
|
---|
[471] | 2596 | // compute view cell area as subsititute for probability
|
---|
[591] | 2597 | if (1)
|
---|
| 2598 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2599 | else
|
---|
| 2600 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2601 | }
|
---|
[440] | 2602 |
|
---|
[503] | 2603 |
|
---|
[440] | 2604 |
|
---|
[468] | 2605 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2606 | const Vector3 &termination,
|
---|
| 2607 | ViewCellContainer &viewcells)
|
---|
[440] | 2608 | {
|
---|
[468] | 2609 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2610 | }
|
---|
| 2611 |
|
---|
| 2612 |
|
---|
[503] | 2613 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2614 | const VssRayContainer &rays)
|
---|
| 2615 | {
|
---|
[469] | 2616 | if (!ViewCellsConstructed())
|
---|
[441] | 2617 | {
|
---|
| 2618 | Debug << "view cells not constructed" << endl;
|
---|
| 2619 | return 0;
|
---|
| 2620 | }
|
---|
[590] | 2621 |
|
---|
[1414] | 2622 | // view cells already finished before post processing step,
|
---|
| 2623 | // i.e., because they were loaded from disc
|
---|
[590] | 2624 | if (mViewCellsFinished)
|
---|
| 2625 | {
|
---|
| 2626 | FinalizeViewCells(true);
|
---|
| 2627 | EvaluateViewCellsStats();
|
---|
| 2628 |
|
---|
| 2629 | return 0;
|
---|
| 2630 | }
|
---|
| 2631 |
|
---|
[440] | 2632 | int vcSize = 0;
|
---|
| 2633 | int pvsSize = 0;
|
---|
[1444] | 2634 |
|
---|
[440] | 2635 |
|
---|
[1444] | 2636 | //////////////////
|
---|
[1414] | 2637 | //-- merge leaves of the view cell hierarchy
|
---|
| 2638 |
|
---|
[649] | 2639 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2640 | long startTime = GetTime();
|
---|
| 2641 |
|
---|
| 2642 | VssRayContainer postProcessRays;
|
---|
| 2643 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2644 |
|
---|
[592] | 2645 | if (mMergeViewCells)
|
---|
[591] | 2646 | {
|
---|
[660] | 2647 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2648 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2649 | }
|
---|
| 2650 | else
|
---|
| 2651 | {
|
---|
[660] | 2652 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2653 |
|
---|
[649] | 2654 | // create spatial merge hierarchy
|
---|
[752] | 2655 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2656 | mViewCellsTree->SetRoot(root);
|
---|
| 2657 |
|
---|
[1415] | 2658 | // recompute pvs in the whole hierarchy
|
---|
[752] | 2659 | ObjectPvs pvs;
|
---|
| 2660 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2661 | }
|
---|
[440] | 2662 |
|
---|
[1415] | 2663 | cout << "finished" << endl;
|
---|
| 2664 | cout << "merged view cells in "
|
---|
| 2665 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 2666 |
|
---|
| 2667 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 2668 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 2669 |
|
---|
| 2670 |
|
---|
[1418] | 2671 | ////////////////////////
|
---|
[1444] | 2672 | //-- visualization and statistics after merge
|
---|
[1415] | 2673 |
|
---|
[666] | 2674 | if (1)
|
---|
| 2675 | {
|
---|
| 2676 | char mstats[100];
|
---|
[1004] | 2677 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2678 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2679 | }
|
---|
[650] | 2680 |
|
---|
[1415] | 2681 | ResetViewCells(); // reset view cells
|
---|
[660] | 2682 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2683 |
|
---|
[1121] | 2684 | // save color code
|
---|
| 2685 | const int savedColorCode = mColorCode;
|
---|
[605] | 2686 |
|
---|
[600] | 2687 | if (1) // export merged view cells
|
---|
| 2688 | {
|
---|
[1444] | 2689 | mColorCode = 0; // use random colors
|
---|
[744] | 2690 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2691 |
|
---|
[600] | 2692 | cout << "exporting view cells after merge ... ";
|
---|
| 2693 |
|
---|
| 2694 | if (exporter)
|
---|
| 2695 | {
|
---|
| 2696 | if (mExportGeometry)
|
---|
[1416] | 2697 | {
|
---|
[600] | 2698 | exporter->ExportGeometry(objects);
|
---|
[1416] | 2699 | }
|
---|
[600] | 2700 |
|
---|
| 2701 | exporter->SetFilled();
|
---|
[1416] | 2702 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[600] | 2703 |
|
---|
| 2704 | delete exporter;
|
---|
| 2705 | }
|
---|
| 2706 | cout << "finished" << endl;
|
---|
| 2707 | }
|
---|
| 2708 |
|
---|
[1416] | 2709 | if (1)
|
---|
[600] | 2710 | {
|
---|
[1416] | 2711 | // export merged view cells using pvs color coding
|
---|
[600] | 2712 | mColorCode = 1;
|
---|
| 2713 |
|
---|
[744] | 2714 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2715 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2716 |
|
---|
| 2717 | if (exporter)
|
---|
| 2718 | {
|
---|
| 2719 | if (mExportGeometry)
|
---|
[1416] | 2720 | {
|
---|
[600] | 2721 | exporter->ExportGeometry(objects);
|
---|
[1416] | 2722 | }
|
---|
| 2723 |
|
---|
[600] | 2724 | exporter->SetFilled();
|
---|
[1416] | 2725 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[600] | 2726 |
|
---|
| 2727 | delete exporter;
|
---|
| 2728 | }
|
---|
| 2729 | cout << "finished" << endl;
|
---|
| 2730 | }
|
---|
[693] | 2731 |
|
---|
[1122] | 2732 | // only for debugging purpose: test if the subdivision is valid
|
---|
| 2733 | if (0) TestSubdivision();
|
---|
[693] | 2734 |
|
---|
[600] | 2735 | mColorCode = savedColorCode;
|
---|
| 2736 |
|
---|
[719] | 2737 | // compute final meshes and volume / area
|
---|
| 2738 | if (1) FinalizeViewCells(true);
|
---|
| 2739 |
|
---|
[1486] | 2740 | // write view cells to disc
|
---|
| 2741 | if (1 && mExportViewCells)
|
---|
[587] | 2742 | {
|
---|
[840] | 2743 | char filename[100];
|
---|
[1004] | 2744 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2745 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2746 | }
|
---|
[840] | 2747 |
|
---|
[650] | 2748 | return 0;
|
---|
[440] | 2749 | }
|
---|
| 2750 |
|
---|
[477] | 2751 |
|
---|
| 2752 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2753 | {
|
---|
| 2754 | }
|
---|
| 2755 |
|
---|
| 2756 |
|
---|
[440] | 2757 | int BspViewCellsManager::GetType() const
|
---|
| 2758 | {
|
---|
| 2759 | return BSP;
|
---|
| 2760 | }
|
---|
| 2761 |
|
---|
| 2762 |
|
---|
| 2763 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2764 | const VssRayContainer &sampleRays)
|
---|
[440] | 2765 | {
|
---|
[469] | 2766 | if (!ViewCellsConstructed())
|
---|
| 2767 | return;
|
---|
[574] | 2768 |
|
---|
[600] | 2769 | int savedColorCode = mColorCode;
|
---|
| 2770 |
|
---|
| 2771 |
|
---|
| 2772 | if (1) // export final view cells
|
---|
[440] | 2773 | {
|
---|
[1020] | 2774 | mColorCode = 1; // hack color code
|
---|
[1415] | 2775 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 2776 |
|
---|
| 2777 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2778 |
|
---|
[469] | 2779 | if (exporter)
|
---|
[440] | 2780 | {
|
---|
[600] | 2781 | if (mExportGeometry)
|
---|
[1416] | 2782 | {
|
---|
[600] | 2783 | exporter->ExportGeometry(objects);
|
---|
[1416] | 2784 | }
|
---|
[590] | 2785 |
|
---|
[1416] | 2786 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[469] | 2787 | delete exporter;
|
---|
[440] | 2788 | }
|
---|
[469] | 2789 | cout << "finished" << endl;
|
---|
[503] | 2790 | }
|
---|
[477] | 2791 |
|
---|
[600] | 2792 | mColorCode = savedColorCode;
|
---|
| 2793 |
|
---|
[1416] | 2794 |
|
---|
| 2795 | //////////////////
|
---|
[469] | 2796 | //-- visualization of the BSP splits
|
---|
[1416] | 2797 |
|
---|
[469] | 2798 | bool exportSplits = false;
|
---|
[1004] | 2799 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2800 |
|
---|
[469] | 2801 | if (exportSplits)
|
---|
[440] | 2802 | {
|
---|
[469] | 2803 | cout << "exporting splits ... ";
|
---|
[477] | 2804 | ExportSplits(objects);
|
---|
[469] | 2805 | cout << "finished" << endl;
|
---|
[440] | 2806 | }
|
---|
[477] | 2807 |
|
---|
[600] | 2808 | // export single view cells
|
---|
[477] | 2809 | ExportBspPvs(objects);
|
---|
[440] | 2810 | }
|
---|
| 2811 |
|
---|
| 2812 |
|
---|
[477] | 2813 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2814 | {
|
---|
| 2815 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2816 |
|
---|
[503] | 2817 | if (exporter)
|
---|
| 2818 | {
|
---|
[598] | 2819 | //exporter->SetFilled();
|
---|
| 2820 |
|
---|
| 2821 | if (mExportGeometry)
|
---|
| 2822 | exporter->ExportGeometry(objects);
|
---|
| 2823 |
|
---|
[503] | 2824 | Material m;
|
---|
[440] | 2825 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2826 | exporter->SetForcedMaterial(m);
|
---|
| 2827 | exporter->SetWireframe();
|
---|
[503] | 2828 |
|
---|
[440] | 2829 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2830 |
|
---|
[482] | 2831 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2832 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2833 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2834 | //exporter->ResetForcedMaterial();
|
---|
| 2835 |
|
---|
[440] | 2836 | delete exporter;
|
---|
| 2837 | }
|
---|
| 2838 | }
|
---|
| 2839 |
|
---|
[477] | 2840 |
|
---|
| 2841 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2842 | {
|
---|
[477] | 2843 | const int leafOut = 10;
|
---|
[503] | 2844 |
|
---|
[477] | 2845 | ViewCell::NewMail();
|
---|
[440] | 2846 |
|
---|
[477] | 2847 | //-- some rays for output
|
---|
| 2848 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2849 |
|
---|
[477] | 2850 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2851 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2852 |
|
---|
[997] | 2853 | // sort view cells in order to find the largest view cells
|
---|
[1418] | 2854 | if (0) stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[587] | 2855 |
|
---|
[503] | 2856 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2857 |
|
---|
[478] | 2858 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2859 | {
|
---|
[478] | 2860 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2861 | VssRayContainer vcRays;
|
---|
| 2862 | Intersectable::NewMail();
|
---|
[582] | 2863 | ViewCell *vc;
|
---|
| 2864 |
|
---|
| 2865 | if (0)
|
---|
| 2866 | vc = mViewCells[i];
|
---|
| 2867 | else
|
---|
| 2868 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2869 |
|
---|
[478] | 2870 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2871 |
|
---|
[587] | 2872 | if(0)
|
---|
[477] | 2873 | {
|
---|
[587] | 2874 | // check whether we can add the current ray to the output rays
|
---|
| 2875 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2876 | {
|
---|
[587] | 2877 | BspRay *ray = mBspRays[k];
|
---|
| 2878 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2879 | {
|
---|
| 2880 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2881 | if (vc == leaf->GetViewCell())
|
---|
| 2882 | vcRays.push_back(ray->vssRay);
|
---|
| 2883 | }
|
---|
[477] | 2884 | }
|
---|
| 2885 | }
|
---|
[587] | 2886 |
|
---|
[478] | 2887 | //bspLeaves[j]->Mail();
|
---|
| 2888 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2889 |
|
---|
[478] | 2890 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2891 |
|
---|
[478] | 2892 | exporter->SetWireframe();
|
---|
[477] | 2893 |
|
---|
[478] | 2894 | Material m;//= RandomMaterial();
|
---|
| 2895 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2896 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2897 |
|
---|
[1416] | 2898 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[587] | 2899 |
|
---|
[478] | 2900 | // export rays piercing this view cell
|
---|
| 2901 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2902 |
|
---|
[478] | 2903 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2904 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2905 |
|
---|
[478] | 2906 | ObjectPvsMap::const_iterator it,
|
---|
| 2907 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2908 |
|
---|
[478] | 2909 | exporter->SetFilled();
|
---|
[469] | 2910 |
|
---|
[478] | 2911 | // output PVS of view cell
|
---|
[503] | 2912 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2913 | {
|
---|
| 2914 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2915 |
|
---|
[478] | 2916 | if (!intersect->Mailed())
|
---|
| 2917 | {
|
---|
| 2918 | Material m = RandomMaterial();
|
---|
| 2919 | exporter->SetForcedMaterial(m);
|
---|
| 2920 |
|
---|
| 2921 | exporter->ExportIntersectable(intersect);
|
---|
| 2922 | intersect->Mail();
|
---|
[503] | 2923 | }
|
---|
[477] | 2924 | }
|
---|
[503] | 2925 |
|
---|
[478] | 2926 | DEL_PTR(exporter);
|
---|
| 2927 | cout << "finished" << endl;
|
---|
[477] | 2928 | }
|
---|
| 2929 |
|
---|
| 2930 | Debug << endl;
|
---|
[440] | 2931 | }
|
---|
| 2932 |
|
---|
[441] | 2933 |
|
---|
[693] | 2934 | void BspViewCellsManager::TestSubdivision()
|
---|
| 2935 | {
|
---|
| 2936 | ViewCellContainer leaves;
|
---|
| 2937 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 2938 |
|
---|
| 2939 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2940 |
|
---|
| 2941 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 2942 | float subdivVol = 0;
|
---|
| 2943 | float newVol = 0;
|
---|
| 2944 |
|
---|
| 2945 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2946 | {
|
---|
| 2947 | BspNodeGeometry geom;
|
---|
| 2948 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2949 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2950 |
|
---|
| 2951 | const float lVol = geom.GetVolume();
|
---|
| 2952 |
|
---|
| 2953 | newVol += lVol;
|
---|
| 2954 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 2955 |
|
---|
[704] | 2956 | float thres = 0.9f;
|
---|
[694] | 2957 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 2958 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 2959 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 2960 | }
|
---|
| 2961 |
|
---|
| 2962 | Debug << "exact volume: " << vol << endl;
|
---|
| 2963 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 2964 | Debug << "new volume: " << newVol << endl;
|
---|
| 2965 | }
|
---|
| 2966 |
|
---|
| 2967 |
|
---|
[580] | 2968 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2969 | ViewCell *vc,
|
---|
[1416] | 2970 | const AxisAlignedBox3 *sceneBox,
|
---|
| 2971 | const AxisAlignedPlane *clipPlane
|
---|
| 2972 | ) const
|
---|
[482] | 2973 | {
|
---|
[1027] | 2974 | // export mesh if available
|
---|
[482] | 2975 | if (vc->GetMesh())
|
---|
| 2976 | {
|
---|
[587] | 2977 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 2978 | return;
|
---|
[482] | 2979 | }
|
---|
[1027] | 2980 | // otherwise construct from leaves
|
---|
[660] | 2981 | if (clipPlane)
|
---|
[591] | 2982 | {
|
---|
[1047] | 2983 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 2984 |
|
---|
[726] | 2985 | ViewCellContainer leaves;
|
---|
| 2986 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2987 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 2988 |
|
---|
[726] | 2989 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 2990 | {
|
---|
[726] | 2991 | BspNodeGeometry geom;
|
---|
| 2992 |
|
---|
[681] | 2993 | BspNodeGeometry front;
|
---|
| 2994 | BspNodeGeometry back;
|
---|
[591] | 2995 |
|
---|
[726] | 2996 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2997 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 2998 |
|
---|
[726] | 2999 | const float eps = 0.00000001f;
|
---|
[1047] | 3000 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3001 |
|
---|
| 3002 | if (cf == -1)
|
---|
| 3003 | {
|
---|
| 3004 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3005 | }
|
---|
| 3006 | else if (cf == 0)
|
---|
| 3007 | {
|
---|
| 3008 | geom.SplitGeometry(front,
|
---|
| 3009 | back,
|
---|
[1047] | 3010 | plane,
|
---|
[726] | 3011 | mViewSpaceBox,
|
---|
| 3012 | eps);
|
---|
| 3013 |
|
---|
| 3014 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 3015 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 3016 | if (back.Valid())
|
---|
| 3017 | {
|
---|
| 3018 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3019 | }
|
---|
| 3020 | }
|
---|
[681] | 3021 | }
|
---|
[591] | 3022 | }
|
---|
| 3023 | else
|
---|
| 3024 | {
|
---|
[726] | 3025 | BspNodeGeometry geom;
|
---|
| 3026 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3027 |
|
---|
[678] | 3028 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 3029 | }
|
---|
[482] | 3030 | }
|
---|
| 3031 |
|
---|
[503] | 3032 |
|
---|
| 3033 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3034 | {
|
---|
[726] | 3035 | // delete previous mesh
|
---|
| 3036 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 3037 | BspNodeGeometry geom;
|
---|
| 3038 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3039 |
|
---|
[1001] | 3040 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3041 |
|
---|
[840] | 3042 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3043 | vc->SetMesh(mesh);
|
---|
[503] | 3044 | }
|
---|
| 3045 |
|
---|
[551] | 3046 |
|
---|
[587] | 3047 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3048 | const bool createMesh)
|
---|
[502] | 3049 | {
|
---|
[587] | 3050 | float area = 0;
|
---|
| 3051 | float volume = 0;
|
---|
[572] | 3052 |
|
---|
[587] | 3053 | ViewCellContainer leaves;
|
---|
| 3054 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3055 |
|
---|
| 3056 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3057 |
|
---|
[693] | 3058 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3059 | {
|
---|
| 3060 | BspNodeGeometry geom;
|
---|
| 3061 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3062 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3063 |
|
---|
[719] | 3064 | const float lVol = geom.GetVolume();
|
---|
| 3065 | const float lArea = geom.GetArea();
|
---|
[693] | 3066 |
|
---|
| 3067 | //(*it)->SetVolume(vol);
|
---|
| 3068 | //(*it)->SetArea(area);
|
---|
| 3069 |
|
---|
| 3070 | area += lArea;
|
---|
| 3071 | volume += lVol;
|
---|
| 3072 |
|
---|
| 3073 | CreateMesh(*it);
|
---|
[587] | 3074 | }
|
---|
| 3075 |
|
---|
| 3076 | viewCell->SetVolume(volume);
|
---|
| 3077 | viewCell->SetArea(area);
|
---|
[502] | 3078 | }
|
---|
| 3079 |
|
---|
[580] | 3080 |
|
---|
[879] | 3081 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3082 | {
|
---|
[1021] | 3083 | if (!ViewCellsConstructed())
|
---|
[587] | 3084 | return NULL;
|
---|
| 3085 |
|
---|
| 3086 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 3087 | return NULL;
|
---|
| 3088 |
|
---|
| 3089 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3090 | }
|
---|
| 3091 |
|
---|
| 3092 |
|
---|
[587] | 3093 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3094 | vector<MergeCandidate> &candidates)
|
---|
| 3095 | {
|
---|
| 3096 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3097 |
|
---|
| 3098 | if (mUseRaysForMerge)
|
---|
| 3099 | {
|
---|
| 3100 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3101 | }
|
---|
| 3102 | else
|
---|
| 3103 | {
|
---|
| 3104 | vector<BspLeaf *> leaves;
|
---|
| 3105 | mBspTree->CollectLeaves(leaves);
|
---|
| 3106 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3107 | }
|
---|
| 3108 |
|
---|
| 3109 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3110 | }
|
---|
| 3111 |
|
---|
| 3112 |
|
---|
[440] | 3113 |
|
---|
[1047] | 3114 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3115 | const bool exportPvs,
|
---|
| 3116 | const ObjectContainer &objects)
|
---|
[590] | 3117 | {
|
---|
[1077] | 3118 | #if TODO
|
---|
[590] | 3119 | cout << "exporting view cells to xml ... ";
|
---|
| 3120 | std::ofstream stream;
|
---|
[503] | 3121 |
|
---|
[590] | 3122 | // for output we need unique ids for each view cell
|
---|
| 3123 | CreateUniqueViewCellIds();
|
---|
[503] | 3124 |
|
---|
[590] | 3125 |
|
---|
| 3126 | stream.open(filename.c_str());
|
---|
| 3127 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3128 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3129 |
|
---|
| 3130 | //-- the view space bounding box
|
---|
| 3131 | stream << "<ViewSpaceBox"
|
---|
| 3132 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3133 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 3134 |
|
---|
| 3135 | //-- the type of the view cells hierarchy
|
---|
[975] | 3136 |
|
---|
[840] | 3137 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
[975] | 3138 | stream << "<Hierarchy name=\"vspBspTree\" >" << endl;
|
---|
[840] | 3139 |
|
---|
[590] | 3140 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 3141 | stream << "<ViewCells>" << endl;
|
---|
[610] | 3142 |
|
---|
[871] | 3143 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[590] | 3144 |
|
---|
| 3145 | stream << "</ViewCells>" << endl;
|
---|
| 3146 |
|
---|
| 3147 | //-- load the hierarchy
|
---|
| 3148 | stream << "<Hierarchy>" << endl;
|
---|
| 3149 | mBspTree->Export(stream);
|
---|
| 3150 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 3151 |
|
---|
[975] | 3152 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3153 | stream.close();
|
---|
| 3154 |
|
---|
| 3155 | cout << "finished" << endl;
|
---|
[955] | 3156 | #endif
|
---|
[590] | 3157 | return true;
|
---|
| 3158 | }
|
---|
| 3159 |
|
---|
| 3160 |
|
---|
[650] | 3161 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3162 | {
|
---|
[752] | 3163 | // terminate recursion
|
---|
[650] | 3164 | if (root->IsLeaf())
|
---|
| 3165 | {
|
---|
[752] | 3166 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3167 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3168 | return leaf->GetViewCell();
|
---|
[650] | 3169 | }
|
---|
| 3170 |
|
---|
| 3171 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3172 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3173 |
|
---|
[752] | 3174 | // evaluate merge cost for priority traversal
|
---|
[650] | 3175 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3176 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3177 |
|
---|
[650] | 3178 | float volume = 0;
|
---|
[649] | 3179 |
|
---|
[650] | 3180 | BspNode *front = interior->GetFront();
|
---|
| 3181 | BspNode *back = interior->GetBack();
|
---|
[649] | 3182 |
|
---|
[752] | 3183 |
|
---|
| 3184 | //-- recursivly compute child hierarchies
|
---|
[650] | 3185 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3186 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3187 |
|
---|
[752] | 3188 |
|
---|
| 3189 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3190 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3191 |
|
---|
[650] | 3192 | volume += backVc->GetVolume();
|
---|
| 3193 | volume += frontVc->GetVolume();
|
---|
[649] | 3194 |
|
---|
[650] | 3195 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3196 |
|
---|
[650] | 3197 | return viewCellInterior;
|
---|
[610] | 3198 | }
|
---|
| 3199 |
|
---|
[650] | 3200 |
|
---|
[590] | 3201 | /************************************************************************/
|
---|
| 3202 | /* KdViewCellsManager implementation */
|
---|
| 3203 | /************************************************************************/
|
---|
| 3204 |
|
---|
| 3205 |
|
---|
| 3206 |
|
---|
[1264] | 3207 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3208 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3209 | {
|
---|
| 3210 | }
|
---|
| 3211 |
|
---|
[605] | 3212 |
|
---|
[471] | 3213 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3214 | {
|
---|
[479] | 3215 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3216 | if (0)
|
---|
| 3217 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3218 | else
|
---|
| 3219 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3220 | }
|
---|
| 3221 |
|
---|
| 3222 |
|
---|
| 3223 |
|
---|
[479] | 3224 |
|
---|
[480] | 3225 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3226 | {
|
---|
| 3227 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3228 | }
|
---|
[479] | 3229 |
|
---|
[519] | 3230 |
|
---|
[574] | 3231 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3232 | const VssRayContainer &rays)
|
---|
[440] | 3233 | {
|
---|
[441] | 3234 | // if view cells already constructed
|
---|
[440] | 3235 | if (ViewCellsConstructed())
|
---|
| 3236 | return 0;
|
---|
[441] | 3237 |
|
---|
[440] | 3238 | mKdTree->Construct();
|
---|
| 3239 |
|
---|
[480] | 3240 | mTotalAreaValid = false;
|
---|
[469] | 3241 | // create the view cells
|
---|
| 3242 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3243 | // cast rays
|
---|
[574] | 3244 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3245 |
|
---|
[479] | 3246 | EvaluateViewCellsStats();
|
---|
[660] | 3247 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3248 |
|
---|
[440] | 3249 | return 0;
|
---|
| 3250 | }
|
---|
| 3251 |
|
---|
[587] | 3252 |
|
---|
[440] | 3253 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3254 | {
|
---|
| 3255 | return mKdTree->GetRoot() != NULL;
|
---|
| 3256 | }
|
---|
| 3257 |
|
---|
[1020] | 3258 |
|
---|
[503] | 3259 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3260 | const VssRayContainer &rays)
|
---|
[440] | 3261 | {
|
---|
| 3262 | return 0;
|
---|
| 3263 | }
|
---|
| 3264 |
|
---|
[1020] | 3265 |
|
---|
[440] | 3266 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3267 | const VssRayContainer &sampleRays)
|
---|
[440] | 3268 | {
|
---|
[441] | 3269 | if (!ViewCellsConstructed())
|
---|
| 3270 | return;
|
---|
| 3271 |
|
---|
[469] | 3272 | // using view cells instead of the kd PVS of objects
|
---|
| 3273 | const bool useViewCells = true;
|
---|
| 3274 | bool exportRays = false;
|
---|
[440] | 3275 |
|
---|
| 3276 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3277 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3278 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3279 |
|
---|
[469] | 3280 | if (useViewCells)
|
---|
[440] | 3281 | {
|
---|
[469] | 3282 | const int leafOut = 10;
|
---|
[503] | 3283 |
|
---|
[469] | 3284 | ViewCell::NewMail();
|
---|
[503] | 3285 |
|
---|
[469] | 3286 | //-- some rays for output
|
---|
| 3287 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3288 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3289 |
|
---|
| 3290 | //-- some random view cells and rays for output
|
---|
| 3291 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3292 |
|
---|
[469] | 3293 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3294 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3295 |
|
---|
[469] | 3296 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3297 | {
|
---|
[469] | 3298 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3299 | RayContainer vcRays;
|
---|
[503] | 3300 |
|
---|
[469] | 3301 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3302 | #if 0
|
---|
[469] | 3303 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3304 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3305 | {
|
---|
[469] | 3306 | Ray *ray = sampleRays[k];
|
---|
[503] | 3307 |
|
---|
[469] | 3308 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3309 | {
|
---|
| 3310 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3311 |
|
---|
| 3312 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3313 | {
|
---|
| 3314 | vcRays.push_back(ray);
|
---|
| 3315 | }
|
---|
| 3316 | }
|
---|
[479] | 3317 | }
|
---|
[503] | 3318 | #endif
|
---|
[469] | 3319 | Intersectable::NewMail();
|
---|
[503] | 3320 |
|
---|
[469] | 3321 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 3322 |
|
---|
[469] | 3323 | //bspLeaves[j]->Mail();
|
---|
| 3324 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 3325 |
|
---|
[469] | 3326 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3327 | exporter->SetFilled();
|
---|
| 3328 |
|
---|
| 3329 | exporter->SetWireframe();
|
---|
| 3330 | //exporter->SetFilled();
|
---|
[503] | 3331 |
|
---|
[469] | 3332 | Material m;//= RandomMaterial();
|
---|
| 3333 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3334 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3335 |
|
---|
[469] | 3336 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3337 | exporter->ExportBox(box);
|
---|
| 3338 |
|
---|
| 3339 | // export rays piercing this view cell
|
---|
[503] | 3340 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3341 |
|
---|
[469] | 3342 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3343 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3344 |
|
---|
[469] | 3345 | // exporter->SetWireframe();
|
---|
| 3346 | exporter->SetFilled();
|
---|
[503] | 3347 |
|
---|
[469] | 3348 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3349 | // -- output PVS of view cell
|
---|
[1189] | 3350 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3351 | {
|
---|
| 3352 | Intersectable *intersect = (*it).first;
|
---|
| 3353 | if (!intersect->Mailed())
|
---|
| 3354 | {
|
---|
| 3355 | exporter->ExportIntersectable(intersect);
|
---|
| 3356 | intersect->Mail();
|
---|
[503] | 3357 | }
|
---|
[440] | 3358 | }
|
---|
[503] | 3359 |
|
---|
[469] | 3360 | DEL_PTR(exporter);
|
---|
| 3361 | cout << "finished" << endl;
|
---|
[440] | 3362 | }
|
---|
[469] | 3363 |
|
---|
| 3364 | DEL_PTR(rays);
|
---|
[440] | 3365 | }
|
---|
[469] | 3366 | else // using kd PVS of objects
|
---|
| 3367 | {
|
---|
| 3368 | for (int i = 0; i < limit; ++ i)
|
---|
| 3369 | {
|
---|
| 3370 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3371 |
|
---|
[469] | 3372 | // check whether we can add this to the rays
|
---|
[503] | 3373 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3374 | {
|
---|
| 3375 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3376 | {
|
---|
| 3377 | rays[j].push_back(ray);
|
---|
| 3378 | }
|
---|
| 3379 | }
|
---|
| 3380 | }
|
---|
[440] | 3381 |
|
---|
[503] | 3382 | if (exportRays)
|
---|
[469] | 3383 | {
|
---|
| 3384 | Exporter *exporter = NULL;
|
---|
| 3385 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3386 | exporter->SetWireframe();
|
---|
| 3387 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3388 |
|
---|
[728] | 3389 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3390 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3391 |
|
---|
| 3392 | exporter->SetFilled();
|
---|
[503] | 3393 |
|
---|
[469] | 3394 | delete exporter;
|
---|
| 3395 | }
|
---|
[440] | 3396 |
|
---|
[503] | 3397 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3398 | {
|
---|
| 3399 | Intersectable *object = objects[k];
|
---|
[503] | 3400 | char s[64];
|
---|
[469] | 3401 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 3402 |
|
---|
[469] | 3403 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3404 | exporter->SetWireframe();
|
---|
[503] | 3405 |
|
---|
[1233] | 3406 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 3407 | Intersectable::NewMail();
|
---|
[503] | 3408 |
|
---|
[469] | 3409 | // avoid adding the object to the list
|
---|
| 3410 | object->Mail();
|
---|
| 3411 | ObjectContainer visibleObjects;
|
---|
[503] | 3412 |
|
---|
[1233] | 3413 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3414 | {
|
---|
[1233] | 3415 | KdNode *node = (*kit).first;
|
---|
[469] | 3416 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3417 |
|
---|
[469] | 3418 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3419 | }
|
---|
[503] | 3420 |
|
---|
[469] | 3421 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3422 | exporter->SetFilled();
|
---|
[503] | 3423 |
|
---|
[469] | 3424 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3425 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3426 |
|
---|
[469] | 3427 | Material m;
|
---|
| 3428 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3429 | exporter->SetForcedMaterial(m);
|
---|
| 3430 | exporter->ExportIntersectable(object);
|
---|
[503] | 3431 |
|
---|
[469] | 3432 | delete exporter;
|
---|
[440] | 3433 | }
|
---|
[503] | 3434 | }
|
---|
[440] | 3435 | }
|
---|
| 3436 |
|
---|
[469] | 3437 |
|
---|
[580] | 3438 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3439 | {
|
---|
| 3440 | return new KdViewCell(mesh);
|
---|
| 3441 | }
|
---|
[482] | 3442 |
|
---|
[580] | 3443 |
|
---|
| 3444 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3445 | ViewCell *vc,
|
---|
[1416] | 3446 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3447 | const AxisAlignedPlane *clipPlane
|
---|
| 3448 | ) const
|
---|
[482] | 3449 | {
|
---|
[580] | 3450 | ViewCellContainer leaves;
|
---|
| 3451 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3452 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3453 |
|
---|
| 3454 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3455 | {
|
---|
| 3456 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 3457 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 3458 | }
|
---|
[482] | 3459 | }
|
---|
| 3460 |
|
---|
| 3461 |
|
---|
[440] | 3462 | int KdViewCellsManager::GetType() const
|
---|
| 3463 | {
|
---|
| 3464 | return ViewCellsManager::KD;
|
---|
| 3465 | }
|
---|
| 3466 |
|
---|
| 3467 |
|
---|
[441] | 3468 |
|
---|
[440] | 3469 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3470 | {
|
---|
| 3471 | KdNode *node = leaf;
|
---|
| 3472 |
|
---|
| 3473 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3474 | node = node->mParent;
|
---|
[1176] | 3475 |
|
---|
[440] | 3476 | return node;
|
---|
| 3477 | }
|
---|
| 3478 |
|
---|
[469] | 3479 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3480 | const Vector3 &termination,
|
---|
| 3481 | ViewCellContainer &viewcells)
|
---|
[466] | 3482 | {
|
---|
[469] | 3483 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3484 | }
|
---|
| 3485 |
|
---|
[469] | 3486 |
|
---|
[503] | 3487 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3488 | {
|
---|
[551] | 3489 | // TODO
|
---|
[503] | 3490 | }
|
---|
| 3491 |
|
---|
[580] | 3492 |
|
---|
| 3493 |
|
---|
| 3494 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3495 | vector<MergeCandidate> &candidates)
|
---|
| 3496 | {
|
---|
| 3497 | // TODO
|
---|
| 3498 | }
|
---|
| 3499 |
|
---|
[1021] | 3500 |
|
---|
| 3501 |
|
---|
[503] | 3502 | /**************************************************************************/
|
---|
| 3503 | /* VspBspViewCellsManager implementation */
|
---|
| 3504 | /**************************************************************************/
|
---|
[482] | 3505 |
|
---|
[503] | 3506 |
|
---|
[1264] | 3507 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 3508 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 3509 | {
|
---|
[1004] | 3510 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3511 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3512 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3513 | }
|
---|
| 3514 |
|
---|
[477] | 3515 |
|
---|
[475] | 3516 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3517 | {
|
---|
| 3518 | }
|
---|
| 3519 |
|
---|
[477] | 3520 |
|
---|
[471] | 3521 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3522 | {
|
---|
[551] | 3523 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3524 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3525 | else
|
---|
| 3526 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3527 | }
|
---|
| 3528 |
|
---|
[477] | 3529 |
|
---|
[480] | 3530 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3531 | {
|
---|
[581] | 3532 | // view cells tree constructed
|
---|
| 3533 | if (!ViewCellsTreeConstructed())
|
---|
| 3534 | {
|
---|
[590] | 3535 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3536 | }
|
---|
| 3537 | else
|
---|
[1264] | 3538 | {
|
---|
| 3539 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3540 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3541 | }
|
---|
[480] | 3542 | }
|
---|
| 3543 |
|
---|
| 3544 |
|
---|
[1021] | 3545 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3546 | vector<MergeCandidate> &candidates)
|
---|
| 3547 | {
|
---|
| 3548 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3549 |
|
---|
| 3550 | if (mUseRaysForMerge)
|
---|
| 3551 | {
|
---|
| 3552 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3553 | }
|
---|
| 3554 | else
|
---|
| 3555 | {
|
---|
| 3556 | vector<BspLeaf *> leaves;
|
---|
| 3557 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3558 |
|
---|
| 3559 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3560 | }
|
---|
| 3561 |
|
---|
| 3562 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3563 | }
|
---|
| 3564 |
|
---|
| 3565 |
|
---|
[442] | 3566 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3567 | {
|
---|
| 3568 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3569 | }
|
---|
| 3570 |
|
---|
[462] | 3571 |
|
---|
[442] | 3572 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3573 | {
|
---|
| 3574 | return new BspViewCell(mesh);
|
---|
| 3575 | }
|
---|
| 3576 |
|
---|
[569] | 3577 |
|
---|
[574] | 3578 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3579 | const VssRayContainer &rays)
|
---|
[442] | 3580 | {
|
---|
[710] | 3581 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3582 |
|
---|
[503] | 3583 | // if view cells were already constructed
|
---|
| 3584 | if (ViewCellsConstructed())
|
---|
| 3585 | return 0;
|
---|
[442] | 3586 |
|
---|
[503] | 3587 | int sampleContributions = 0;
|
---|
| 3588 |
|
---|
| 3589 | VssRayContainer sampleRays;
|
---|
| 3590 |
|
---|
[574] | 3591 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3592 |
|
---|
[469] | 3593 | VssRayContainer constructionRays;
|
---|
| 3594 | VssRayContainer savedRays;
|
---|
[442] | 3595 |
|
---|
[660] | 3596 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3597 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3598 |
|
---|
[574] | 3599 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3600 |
|
---|
[574] | 3601 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3602 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3603 |
|
---|
[1002] | 3604 | long startTime;
|
---|
[564] | 3605 |
|
---|
[667] | 3606 | if (1)
|
---|
[1221] | 3607 | {
|
---|
[667] | 3608 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 3609 | }
|
---|
[666] | 3610 | else
|
---|
[1221] | 3611 | {
|
---|
[667] | 3612 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 3613 | }
|
---|
[667] | 3614 |
|
---|
[490] | 3615 | // collapse invalid regions
|
---|
[491] | 3616 | cout << "collapsing invalid tree regions ... ";
|
---|
[1002] | 3617 | startTime = GetTime();
|
---|
| 3618 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3619 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3620 | << " seconds" << endl;
|
---|
| 3621 |
|
---|
[495] | 3622 | cout << "finished" << endl;
|
---|
[503] | 3623 |
|
---|
[1444] | 3624 | /////////////////
|
---|
[1221] | 3625 | //-- stats after construction
|
---|
| 3626 |
|
---|
[660] | 3627 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3628 |
|
---|
[480] | 3629 | ResetViewCells();
|
---|
[660] | 3630 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3631 |
|
---|
[491] | 3632 |
|
---|
[1444] | 3633 | //////////////////////
|
---|
| 3634 | //-- recast rest of rays
|
---|
[495] | 3635 | startTime = GetTime();
|
---|
[503] | 3636 |
|
---|
[491] | 3637 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3638 |
|
---|
| 3639 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3640 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3641 |
|
---|
[491] | 3642 | cout << "finished" << endl;
|
---|
| 3643 |
|
---|
[503] | 3644 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3645 | << " secs" << endl;
|
---|
[442] | 3646 |
|
---|
[485] | 3647 | cout << "construction finished" << endl;
|
---|
[503] | 3648 |
|
---|
[719] | 3649 | if (0)
|
---|
| 3650 | {
|
---|
[1077] | 3651 | //-- real meshes are contructed at this stage
|
---|
[719] | 3652 | cout << "finalizing view cells ... ";
|
---|
| 3653 | FinalizeViewCells(true);
|
---|
| 3654 | cout << "finished" << endl;
|
---|
| 3655 | }
|
---|
| 3656 |
|
---|
[442] | 3657 | return sampleContributions;
|
---|
| 3658 | }
|
---|
| 3659 |
|
---|
[489] | 3660 |
|
---|
[503] | 3661 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3662 | const ObjectContainer &objects)
|
---|
[475] | 3663 | {
|
---|
[442] | 3664 | int vcSize = 0;
|
---|
| 3665 | int pvsSize = 0;
|
---|
| 3666 |
|
---|
[650] | 3667 | //-- merge view cells
|
---|
| 3668 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3669 | long startTime = GetTime();
|
---|
| 3670 |
|
---|
| 3671 |
|
---|
[597] | 3672 | if (mMergeViewCells)
|
---|
| 3673 | {
|
---|
| 3674 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3675 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3676 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3677 | }
|
---|
| 3678 | else
|
---|
| 3679 | {
|
---|
[710] | 3680 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3681 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3682 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3683 |
|
---|
| 3684 | // compute pvs
|
---|
| 3685 | ObjectPvs pvs;
|
---|
| 3686 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3687 | }
|
---|
[442] | 3688 |
|
---|
[666] | 3689 | if (1)
|
---|
| 3690 | {
|
---|
| 3691 | char mstats[100];
|
---|
[752] | 3692 | ObjectPvs pvs;
|
---|
| 3693 |
|
---|
[1004] | 3694 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3695 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3696 | }
|
---|
[485] | 3697 |
|
---|
[650] | 3698 | cout << "merged view cells in "
|
---|
| 3699 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3700 |
|
---|
[650] | 3701 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3702 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3703 |
|
---|
| 3704 |
|
---|
[1444] | 3705 | //////////////////
|
---|
| 3706 | //-- stats and visualizations
|
---|
| 3707 |
|
---|
[600] | 3708 | int savedColorCode = mColorCode;
|
---|
| 3709 |
|
---|
[660] | 3710 | // get currently active view cell set
|
---|
| 3711 | ResetViewCells();
|
---|
| 3712 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 3713 |
|
---|
[667] | 3714 | if (1) // export merged view cells
|
---|
[483] | 3715 | {
|
---|
[600] | 3716 | mColorCode = 0;
|
---|
[744] | 3717 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3718 |
|
---|
[485] | 3719 | cout << "exporting view cells after merge ... ";
|
---|
| 3720 |
|
---|
| 3721 | if (exporter)
|
---|
[483] | 3722 | {
|
---|
[600] | 3723 | if (0)
|
---|
| 3724 | exporter->SetWireframe();
|
---|
| 3725 | else
|
---|
| 3726 | exporter->SetFilled();
|
---|
| 3727 |
|
---|
[1416] | 3728 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[600] | 3729 |
|
---|
[485] | 3730 | if (mExportGeometry)
|
---|
[483] | 3731 | {
|
---|
[485] | 3732 | Material m;
|
---|
| 3733 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3734 | exporter->SetForcedMaterial(m);
|
---|
| 3735 | exporter->SetFilled();
|
---|
[442] | 3736 |
|
---|
[485] | 3737 | exporter->ExportGeometry(objects);
|
---|
[442] | 3738 | }
|
---|
[485] | 3739 |
|
---|
[600] | 3740 | delete exporter;
|
---|
| 3741 | }
|
---|
| 3742 | cout << "finished" << endl;
|
---|
| 3743 | }
|
---|
| 3744 |
|
---|
[1404] | 3745 | if (1)
|
---|
[600] | 3746 | {
|
---|
[1416] | 3747 | // use pvs size for color coding
|
---|
| 3748 | mColorCode = 1;
|
---|
[744] | 3749 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 3750 |
|
---|
[600] | 3751 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3752 |
|
---|
| 3753 | if (exporter)
|
---|
| 3754 | {
|
---|
[1416] | 3755 | exporter->SetFilled();
|
---|
[598] | 3756 |
|
---|
[1416] | 3757 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[598] | 3758 |
|
---|
[600] | 3759 | if (mExportGeometry)
|
---|
| 3760 | {
|
---|
| 3761 | Material m;
|
---|
| 3762 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3763 | exporter->SetForcedMaterial(m);
|
---|
| 3764 | exporter->SetFilled();
|
---|
| 3765 |
|
---|
| 3766 | exporter->ExportGeometry(objects);
|
---|
| 3767 | }
|
---|
| 3768 |
|
---|
[485] | 3769 | delete exporter;
|
---|
[442] | 3770 | }
|
---|
[485] | 3771 | cout << "finished" << endl;
|
---|
[442] | 3772 | }
|
---|
[600] | 3773 |
|
---|
| 3774 | mColorCode = savedColorCode;
|
---|
| 3775 |
|
---|
[503] | 3776 | }
|
---|
[475] | 3777 |
|
---|
[503] | 3778 |
|
---|
[609] | 3779 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3780 | {
|
---|
[609] | 3781 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3782 | }
|
---|
| 3783 |
|
---|
| 3784 |
|
---|
[609] | 3785 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3786 | {
|
---|
| 3787 | if (!viewCell->IsLeaf())
|
---|
| 3788 | {
|
---|
| 3789 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3790 |
|
---|
[609] | 3791 | return bspVc->mLeaf;
|
---|
| 3792 | }
|
---|
[607] | 3793 | else
|
---|
| 3794 | {
|
---|
| 3795 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3796 |
|
---|
| 3797 | // cannot be node of binary tree
|
---|
| 3798 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3799 | return NULL;
|
---|
[607] | 3800 |
|
---|
| 3801 | ViewCell *left = interior->mChildren[0];
|
---|
| 3802 | ViewCell *right = interior->mChildren[1];
|
---|
| 3803 |
|
---|
[609] | 3804 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3805 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3806 |
|
---|
[609] | 3807 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3808 | {
|
---|
[609] | 3809 | return leftNode->GetParent();
|
---|
[607] | 3810 | }
|
---|
[609] | 3811 | }
|
---|
[607] | 3812 |
|
---|
[609] | 3813 | return NULL;
|
---|
[607] | 3814 | }
|
---|
| 3815 |
|
---|
| 3816 |
|
---|
[564] | 3817 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3818 | const ObjectContainer &objects)
|
---|
[503] | 3819 | {
|
---|
[485] | 3820 | mRenderer->RenderScene();
|
---|
[503] | 3821 | SimulationStatistics ss;
|
---|
[485] | 3822 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 3823 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 3824 |
|
---|
[1414] | 3825 | const long startTime = GetTime();
|
---|
[489] | 3826 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 3827 |
|
---|
| 3828 | // refining the merged view cells
|
---|
[580] | 3829 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3830 |
|
---|
[442] | 3831 | //-- stats and visualizations
|
---|
| 3832 | cout << "finished" << endl;
|
---|
[485] | 3833 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3834 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3835 |
|
---|
[485] | 3836 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3837 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3838 | }
|
---|
[495] | 3839 |
|
---|
[517] | 3840 |
|
---|
[503] | 3841 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3842 | const VssRayContainer &rays)
|
---|
[840] | 3843 | {
|
---|
[503] | 3844 | if (!ViewCellsConstructed())
|
---|
| 3845 | {
|
---|
[517] | 3846 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3847 | return 0;
|
---|
| 3848 | }
|
---|
[520] | 3849 |
|
---|
[609] | 3850 | // view cells already finished before post processing step
|
---|
| 3851 | // (i.e. because they were loaded)
|
---|
[520] | 3852 | if (mViewCellsFinished)
|
---|
[542] | 3853 | {
|
---|
[551] | 3854 | FinalizeViewCells(true);
|
---|
[542] | 3855 | EvaluateViewCellsStats();
|
---|
[577] | 3856 |
|
---|
[517] | 3857 | return 0;
|
---|
[542] | 3858 | }
|
---|
[448] | 3859 |
|
---|
[710] | 3860 | // check if new view cells turned invalid
|
---|
| 3861 | int minPvs, maxPvs;
|
---|
[564] | 3862 |
|
---|
[710] | 3863 | if (0)
|
---|
| 3864 | {
|
---|
| 3865 | minPvs = mMinPvsSize;
|
---|
| 3866 | maxPvs = mMaxPvsSize;
|
---|
| 3867 | }
|
---|
| 3868 | else
|
---|
| 3869 | {
|
---|
[1414] | 3870 | // problem matt: why did I start here from zero?
|
---|
| 3871 | minPvs = 0;
|
---|
[710] | 3872 | maxPvs = mMaxPvsSize;
|
---|
| 3873 | }
|
---|
[720] | 3874 |
|
---|
[710] | 3875 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3876 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3877 |
|
---|
| 3878 | SetValidity(minPvs, maxPvs);
|
---|
| 3879 |
|
---|
[574] | 3880 | // update valid view space according to valid view cells
|
---|
[720] | 3881 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3882 |
|
---|
[720] | 3883 | // area has to be recomputed
|
---|
[574] | 3884 | mTotalAreaValid = false;
|
---|
[517] | 3885 | VssRayContainer postProcessRays;
|
---|
[605] | 3886 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3887 |
|
---|
[517] | 3888 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3889 |
|
---|
[1414] | 3890 | // should maybe be done here to allow merge working
|
---|
| 3891 | // with area or volume and to correct the rendering statistics
|
---|
[719] | 3892 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3893 |
|
---|
[1444] | 3894 | //////////
|
---|
[597] | 3895 | //-- merge the individual view cells
|
---|
| 3896 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3897 |
|
---|
[1444] | 3898 | // refines the merged view cells
|
---|
[720] | 3899 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3900 |
|
---|
[1444] | 3901 |
|
---|
| 3902 | ///////////
|
---|
[660] | 3903 | //-- render simulation after merge + refine
|
---|
[1414] | 3904 |
|
---|
[1415] | 3905 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 3906 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3907 | SimulationStatistics ss;
|
---|
| 3908 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 3909 | cout << ss << endl;
|
---|
[1414] | 3910 |
|
---|
[600] | 3911 |
|
---|
[1418] | 3912 | ////////////
|
---|
[600] | 3913 | //-- compression
|
---|
[1414] | 3914 |
|
---|
[600] | 3915 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3916 | {
|
---|
[1161] | 3917 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 3918 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3919 |
|
---|
[752] | 3920 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3921 |
|
---|
[1161] | 3922 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 3923 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3924 | }
|
---|
| 3925 |
|
---|
[660] | 3926 |
|
---|
[517] | 3927 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 3928 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 3929 |
|
---|
[574] | 3930 | // recompute view cell list and statistics
|
---|
[520] | 3931 | ResetViewCells();
|
---|
| 3932 |
|
---|
[719] | 3933 | // compute final meshes and volume / area
|
---|
| 3934 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 3935 |
|
---|
[508] | 3936 | // write view cells to disc
|
---|
[1486] | 3937 | if (1 && mExportViewCells)
|
---|
[1444] | 3938 | {
|
---|
[840] | 3939 | char filename[100];
|
---|
[1004] | 3940 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 3941 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 3942 | }
|
---|
[517] | 3943 |
|
---|
[503] | 3944 | return 0;
|
---|
[442] | 3945 | }
|
---|
| 3946 |
|
---|
[490] | 3947 |
|
---|
[442] | 3948 | int VspBspViewCellsManager::GetType() const
|
---|
| 3949 | {
|
---|
| 3950 | return VSP_BSP;
|
---|
| 3951 | }
|
---|
| 3952 |
|
---|
| 3953 |
|
---|
[650] | 3954 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 3955 | {
|
---|
[752] | 3956 | // terminate recursion
|
---|
[650] | 3957 | if (root->IsLeaf())
|
---|
| 3958 | {
|
---|
[752] | 3959 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3960 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3961 | return leaf->GetViewCell();
|
---|
[650] | 3962 | }
|
---|
| 3963 |
|
---|
[752] | 3964 |
|
---|
[650] | 3965 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3966 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3967 |
|
---|
[752] | 3968 | // evaluate merge cost for priority traversal
|
---|
[650] | 3969 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3970 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 3971 |
|
---|
[650] | 3972 | float volume = 0;
|
---|
| 3973 |
|
---|
| 3974 | BspNode *front = interior->GetFront();
|
---|
| 3975 | BspNode *back = interior->GetBack();
|
---|
[649] | 3976 |
|
---|
[752] | 3977 |
|
---|
| 3978 | ObjectPvs frontPvs, backPvs;
|
---|
| 3979 |
|
---|
| 3980 | //-- recursivly compute child hierarchies
|
---|
[650] | 3981 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3982 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3983 |
|
---|
[752] | 3984 |
|
---|
| 3985 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3986 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 3987 |
|
---|
| 3988 | volume += backVc->GetVolume();
|
---|
| 3989 | volume += frontVc->GetVolume();
|
---|
| 3990 |
|
---|
| 3991 | viewCellInterior->SetVolume(volume);
|
---|
| 3992 |
|
---|
| 3993 | return viewCellInterior;
|
---|
[609] | 3994 | }
|
---|
| 3995 |
|
---|
| 3996 |
|
---|
[490] | 3997 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 3998 | {
|
---|
| 3999 | if (!ViewCellsConstructed())
|
---|
| 4000 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4001 |
|
---|
| 4002 | // TODO: set reasonable limit
|
---|
| 4003 | const int limit = 20;
|
---|
| 4004 |
|
---|
| 4005 | for (int i = 0; i < limit; ++ i)
|
---|
| 4006 | {
|
---|
[542] | 4007 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4008 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4009 | {
|
---|
| 4010 | return true;
|
---|
| 4011 | }
|
---|
| 4012 | }
|
---|
[997] | 4013 |
|
---|
[490] | 4014 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4015 | return false;
|
---|
| 4016 | }
|
---|
| 4017 |
|
---|
| 4018 |
|
---|
| 4019 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4020 | {
|
---|
[569] | 4021 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4022 | // validy update in preprocessor for all managers)
|
---|
| 4023 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4024 |
|
---|
[569] | 4025 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4026 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4027 | }
|
---|
| 4028 |
|
---|
| 4029 |
|
---|
[442] | 4030 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4031 | const VssRayContainer &sampleRays)
|
---|
[442] | 4032 | {
|
---|
| 4033 | if (!ViewCellsConstructed())
|
---|
| 4034 | return;
|
---|
| 4035 |
|
---|
[485] | 4036 | VssRayContainer visRays;
|
---|
| 4037 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 4038 |
|
---|
[1416] | 4039 |
|
---|
[1077] | 4040 | if (0)
|
---|
[1047] | 4041 | {
|
---|
[1416] | 4042 | //////////////////
|
---|
| 4043 | //-- export final view cell partition
|
---|
| 4044 |
|
---|
[1020] | 4045 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4046 |
|
---|
[442] | 4047 | if (exporter)
|
---|
| 4048 | {
|
---|
[580] | 4049 | cout << "exporting view cells after post process ... ";
|
---|
| 4050 |
|
---|
[600] | 4051 | if (0)
|
---|
[542] | 4052 | {
|
---|
[1004] | 4053 | // export view space box
|
---|
[542] | 4054 | exporter->SetWireframe();
|
---|
| 4055 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4056 | exporter->SetFilled();
|
---|
| 4057 | }
|
---|
| 4058 |
|
---|
[1052] | 4059 | Material m;
|
---|
| 4060 |
|
---|
| 4061 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4062 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4063 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4064 |
|
---|
| 4065 | exporter->SetForcedMaterial(m);
|
---|
| 4066 |
|
---|
| 4067 | if (0 && mExportGeometry)
|
---|
[542] | 4068 | {
|
---|
[485] | 4069 | exporter->ExportGeometry(objects);
|
---|
[542] | 4070 | }
|
---|
[489] | 4071 |
|
---|
| 4072 | // export rays
|
---|
[1047] | 4073 | if (0 && mExportRays)
|
---|
[489] | 4074 | {
|
---|
[1052] | 4075 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4076 | }
|
---|
[564] | 4077 |
|
---|
[1416] | 4078 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[1020] | 4079 |
|
---|
[442] | 4080 | delete exporter;
|
---|
[580] | 4081 | cout << "finished" << endl;
|
---|
[442] | 4082 | }
|
---|
[557] | 4083 | }
|
---|
[503] | 4084 |
|
---|
[600] | 4085 | if (0)
|
---|
[577] | 4086 | {
|
---|
| 4087 | cout << "exporting depth map ... ";
|
---|
| 4088 |
|
---|
| 4089 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4090 | if (exporter)
|
---|
| 4091 | {
|
---|
| 4092 | if (1)
|
---|
| 4093 | {
|
---|
| 4094 | exporter->SetWireframe();
|
---|
| 4095 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4096 | exporter->SetFilled();
|
---|
| 4097 | }
|
---|
| 4098 |
|
---|
| 4099 | if (mExportGeometry)
|
---|
| 4100 | {
|
---|
| 4101 | exporter->ExportGeometry(objects);
|
---|
| 4102 | }
|
---|
| 4103 |
|
---|
[1143] | 4104 | const int maxDepth = mVspBspTree->GetStatistics().maxDepth;
|
---|
[577] | 4105 |
|
---|
| 4106 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4107 |
|
---|
| 4108 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4109 | {
|
---|
[582] | 4110 | ViewCell *vc = *vit;
|
---|
[577] | 4111 |
|
---|
[580] | 4112 | ViewCellContainer leaves;
|
---|
| 4113 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4114 |
|
---|
[580] | 4115 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4116 |
|
---|
| 4117 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4118 | {
|
---|
[580] | 4119 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4120 |
|
---|
| 4121 | Material m;
|
---|
| 4122 |
|
---|
| 4123 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4124 | m.mDiffuseColor.r = relDepth;
|
---|
| 4125 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4126 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4127 |
|
---|
| 4128 | exporter->SetForcedMaterial(m);
|
---|
| 4129 |
|
---|
| 4130 |
|
---|
| 4131 | BspNodeGeometry geom;
|
---|
| 4132 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4133 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4134 | }
|
---|
| 4135 | }
|
---|
| 4136 |
|
---|
| 4137 | delete exporter;
|
---|
| 4138 | }
|
---|
| 4139 |
|
---|
| 4140 |
|
---|
| 4141 | cout << "finished" << endl;
|
---|
| 4142 | }
|
---|
| 4143 |
|
---|
[442] | 4144 | //-- visualization of the BSP splits
|
---|
| 4145 | bool exportSplits = false;
|
---|
[1004] | 4146 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4147 |
|
---|
[442] | 4148 | if (exportSplits)
|
---|
| 4149 | {
|
---|
| 4150 | cout << "exporting splits ... ";
|
---|
[485] | 4151 | ExportSplits(objects, visRays);
|
---|
[442] | 4152 | cout << "finished" << endl;
|
---|
| 4153 | }
|
---|
| 4154 |
|
---|
[542] | 4155 | //-- export single view cells
|
---|
[485] | 4156 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4157 | }
|
---|
| 4158 |
|
---|
[503] | 4159 |
|
---|
[485] | 4160 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4161 | const VssRayContainer &rays)
|
---|
[442] | 4162 | {
|
---|
| 4163 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4164 |
|
---|
[503] | 4165 | if (exporter)
|
---|
| 4166 | {
|
---|
| 4167 | Material m;
|
---|
[442] | 4168 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4169 | exporter->SetForcedMaterial(m);
|
---|
| 4170 | exporter->SetWireframe();
|
---|
[503] | 4171 |
|
---|
[448] | 4172 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4173 |
|
---|
| 4174 | // take forced material, else big scenes cannot be viewed
|
---|
| 4175 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4176 | exporter->SetForcedMaterial(m);
|
---|
| 4177 | exporter->SetFilled();
|
---|
| 4178 |
|
---|
| 4179 | exporter->ResetForcedMaterial();
|
---|
[503] | 4180 |
|
---|
[442] | 4181 | // export rays
|
---|
[485] | 4182 | if (mExportRays)
|
---|
| 4183 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4184 |
|
---|
[485] | 4185 | if (mExportGeometry)
|
---|
[442] | 4186 | exporter->ExportGeometry(objects);
|
---|
| 4187 |
|
---|
| 4188 | delete exporter;
|
---|
| 4189 | }
|
---|
| 4190 | }
|
---|
| 4191 |
|
---|
[503] | 4192 |
|
---|
[485] | 4193 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4194 | const VssRayContainer &rays)
|
---|
[442] | 4195 | {
|
---|
[1020] | 4196 | int leafOut;
|
---|
| 4197 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[503] | 4198 |
|
---|
[442] | 4199 | ViewCell::NewMail();
|
---|
[503] | 4200 |
|
---|
[639] | 4201 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4202 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4203 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4204 |
|
---|
[694] | 4205 | const bool sortViewCells = true;
|
---|
[1021] | 4206 |
|
---|
[485] | 4207 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4208 | if (sortViewCells)
|
---|
[801] | 4209 | {
|
---|
| 4210 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 4211 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4212 | }
|
---|
| 4213 |
|
---|
[503] | 4214 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4215 |
|
---|
[639] | 4216 | int raysOut = 0;
|
---|
[587] | 4217 |
|
---|
[485] | 4218 | //-- some rays for output
|
---|
[478] | 4219 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4220 | {
|
---|
[478] | 4221 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4222 |
|
---|
[582] | 4223 | ViewCell *vc;
|
---|
[574] | 4224 |
|
---|
[694] | 4225 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4226 | vc = mViewCells[i];
|
---|
[574] | 4227 | else
|
---|
[639] | 4228 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4229 |
|
---|
[801] | 4230 | ObjectPvs pvs;
|
---|
| 4231 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4232 |
|
---|
[639] | 4233 | //bspLeaves[j]->Mail();
|
---|
[1020] | 4234 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
[639] | 4235 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4236 |
|
---|
[1142] | 4237 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 4238 |
|
---|
[801] | 4239 | //-- export the sample rays
|
---|
[1020] | 4240 | if (mExportRays)
|
---|
[442] | 4241 | {
|
---|
[694] | 4242 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 4243 | if (1)
|
---|
[442] | 4244 | {
|
---|
[639] | 4245 | VssRayContainer vcRays;
|
---|
| 4246 | VssRayContainer collectRays;
|
---|
| 4247 |
|
---|
| 4248 | raysOut = min((int)rays.size(), 100);
|
---|
| 4249 |
|
---|
| 4250 | // collect intial view cells
|
---|
| 4251 | ViewCellContainer leaves;
|
---|
| 4252 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4253 |
|
---|
| 4254 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4255 |
|
---|
| 4256 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4257 | {
|
---|
[639] | 4258 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4259 |
|
---|
| 4260 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4261 |
|
---|
[639] | 4262 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4263 | {
|
---|
| 4264 | collectRays.push_back(*rit);
|
---|
| 4265 | }
|
---|
[574] | 4266 | }
|
---|
[639] | 4267 |
|
---|
| 4268 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4269 |
|
---|
| 4270 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4271 | {
|
---|
| 4272 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4273 |
|
---|
| 4274 | if (p < raysOut)
|
---|
| 4275 | vcRays.push_back(*rit);
|
---|
| 4276 | }
|
---|
[801] | 4277 |
|
---|
[1052] | 4278 | //Debug << "#rays: " << (int)vcRays.size() << endl;
|
---|
[1047] | 4279 |
|
---|
[639] | 4280 | //-- export rays piercing this view cell
|
---|
| 4281 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4282 | }
|
---|
[651] | 4283 |
|
---|
[694] | 4284 | // associate new rays with output view cell
|
---|
[1047] | 4285 | if (0)
|
---|
[639] | 4286 | {
|
---|
| 4287 | VssRayContainer vcRays;
|
---|
| 4288 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
[801] | 4289 |
|
---|
[639] | 4290 | // check whether we can add the current ray to the output rays
|
---|
| 4291 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4292 | {
|
---|
| 4293 | VssRay *ray = rays[k];
|
---|
| 4294 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4295 | {
|
---|
| 4296 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4297 |
|
---|
| 4298 | if (rayvc == vc)
|
---|
| 4299 | vcRays.push_back(ray);
|
---|
| 4300 | }
|
---|
| 4301 | }
|
---|
| 4302 |
|
---|
| 4303 | //-- export rays piercing this view cell
|
---|
| 4304 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4305 | }
|
---|
| 4306 |
|
---|
[442] | 4307 | }
|
---|
[639] | 4308 |
|
---|
[1416] | 4309 | ////////////////
|
---|
[1020] | 4310 | //-- export view cell geometry
|
---|
[1416] | 4311 |
|
---|
[478] | 4312 | exporter->SetWireframe();
|
---|
[442] | 4313 |
|
---|
[478] | 4314 | Material m;//= RandomMaterial();
|
---|
| 4315 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4316 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4317 |
|
---|
[1416] | 4318 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4319 | exporter->SetFilled();
|
---|
[503] | 4320 |
|
---|
[574] | 4321 | if (1)
|
---|
| 4322 | {
|
---|
[1416] | 4323 | ////////
|
---|
| 4324 | //-- export pvs
|
---|
[639] | 4325 | ObjectPvsMap::const_iterator oit,
|
---|
[801] | 4326 | oit_end = pvs.mEntries.end();
|
---|
[483] | 4327 |
|
---|
[801] | 4328 | Intersectable::NewMail();
|
---|
[580] | 4329 |
|
---|
[639] | 4330 | // output PVS of view cell
|
---|
[801] | 4331 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4332 | {
|
---|
| 4333 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4334 |
|
---|
[639] | 4335 | if (!intersect->Mailed())
|
---|
| 4336 | {
|
---|
[643] | 4337 | m = RandomMaterial();
|
---|
| 4338 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4339 |
|
---|
[639] | 4340 | exporter->ExportIntersectable(intersect);
|
---|
| 4341 | intersect->Mail();
|
---|
| 4342 | }
|
---|
[503] | 4343 | }
|
---|
[442] | 4344 | }
|
---|
[801] | 4345 |
|
---|
| 4346 | if (0)
|
---|
| 4347 | { // export scene geometry
|
---|
[643] | 4348 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4349 | exporter->SetForcedMaterial(m);
|
---|
| 4350 |
|
---|
[639] | 4351 | exporter->ExportGeometry(objects);
|
---|
| 4352 | }
|
---|
[503] | 4353 |
|
---|
[478] | 4354 | DEL_PTR(exporter);
|
---|
| 4355 | cout << "finished" << endl;
|
---|
[442] | 4356 | }
|
---|
[475] | 4357 |
|
---|
| 4358 | Debug << endl;
|
---|
[442] | 4359 | }
|
---|
| 4360 |
|
---|
| 4361 |
|
---|
[1021] | 4362 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4363 | {
|
---|
[1021] | 4364 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4365 |
|
---|
[1021] | 4366 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4367 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4368 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4369 | const Vector3 width = Vector3(w);
|
---|
| 4370 |
|
---|
| 4371 | PrVs testPrVs;
|
---|
| 4372 |
|
---|
| 4373 | if (exporter)
|
---|
| 4374 | {
|
---|
| 4375 | ViewCellContainer viewCells;
|
---|
| 4376 |
|
---|
| 4377 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4378 |
|
---|
[1021] | 4379 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4380 |
|
---|
[1021] | 4381 | exporter->SetWireframe();
|
---|
[482] | 4382 |
|
---|
[1021] | 4383 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4384 | exporter->ExportBox(tbox);
|
---|
| 4385 |
|
---|
| 4386 | exporter->SetFilled();
|
---|
[503] | 4387 |
|
---|
[1021] | 4388 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4389 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4390 |
|
---|
[1021] | 4391 | //exporter->ResetForcedMaterial();
|
---|
| 4392 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4393 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4394 |
|
---|
[1021] | 4395 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4396 | exporter->ExportGeometry(objects);
|
---|
[547] | 4397 |
|
---|
[1021] | 4398 | delete exporter;
|
---|
[482] | 4399 | }
|
---|
[1021] | 4400 | }
|
---|
[482] | 4401 |
|
---|
[547] | 4402 |
|
---|
[1021] | 4403 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4404 | ViewCellContainer &viewCells) const
|
---|
| 4405 | {
|
---|
| 4406 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4407 | }
|
---|
| 4408 |
|
---|
| 4409 |
|
---|
[1021] | 4410 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4411 | const Vector3 &termination,
|
---|
| 4412 | ViewCellContainer &viewcells)
|
---|
| 4413 | {
|
---|
| 4414 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4415 | }
|
---|
| 4416 |
|
---|
| 4417 |
|
---|
[979] | 4418 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4419 | {
|
---|
| 4420 | int numSamples;
|
---|
[1161] | 4421 |
|
---|
[1004] | 4422 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4423 | cout << "samples" << numSamples << endl;
|
---|
| 4424 |
|
---|
| 4425 | vector<RenderCostSample> samples;
|
---|
| 4426 |
|
---|
[1145] | 4427 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4428 | return;
|
---|
| 4429 |
|
---|
[1145] | 4430 | //start the view point queries
|
---|
[979] | 4431 | long startTime = GetTime();
|
---|
| 4432 | cout << "starting sampling of render cost ... ";
|
---|
| 4433 |
|
---|
[1145] | 4434 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4435 |
|
---|
| 4436 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4437 |
|
---|
| 4438 |
|
---|
[1161] | 4439 | // for each sample:
|
---|
| 4440 | // find view cells associated with the samples
|
---|
| 4441 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 4442 | //
|
---|
[1161] | 4443 | // for each view cell:
|
---|
| 4444 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4445 | // export geometry with color coded pvs difference
|
---|
| 4446 |
|
---|
| 4447 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4448 |
|
---|
[979] | 4449 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4450 |
|
---|
[1161] | 4451 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4452 | {
|
---|
| 4453 | RenderCostSample sample = *rit;
|
---|
| 4454 |
|
---|
| 4455 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4456 |
|
---|
[1161] | 4457 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4458 |
|
---|
| 4459 | if (it == sampleMap.end())
|
---|
| 4460 | {
|
---|
| 4461 | sampleMap[vc] = sample.mPvs;
|
---|
| 4462 | }
|
---|
| 4463 | else
|
---|
| 4464 | {
|
---|
| 4465 | (*it).second.Merge(sample.mPvs);
|
---|
| 4466 | }
|
---|
| 4467 | }
|
---|
| 4468 |
|
---|
| 4469 | // visualize the view cells
|
---|
| 4470 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4471 |
|
---|
| 4472 | Material m;//= RandomMaterial();
|
---|
| 4473 |
|
---|
| 4474 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4475 | {
|
---|
| 4476 | ViewCell *vc = (*vit).first;
|
---|
| 4477 |
|
---|
| 4478 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4479 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4480 |
|
---|
[1168] | 4481 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4482 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4483 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 4484 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 4485 |
|
---|
[1415] | 4486 | /* // counting the pvss
|
---|
| 4487 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4488 | {
|
---|
| 4489 | RenderCostSample sample = *rit;
|
---|
| 4490 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 4491 |
|
---|
[1415] | 4492 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4493 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 4494 |
|
---|
[1415] | 4495 | DEL_PTR(hMesh);
|
---|
| 4496 | }
|
---|
| 4497 | */
|
---|
[979] | 4498 | }
|
---|
| 4499 | }
|
---|
| 4500 |
|
---|
| 4501 |
|
---|
[580] | 4502 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 4503 | ViewCell *vc,
|
---|
| 4504 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4505 | const AxisAlignedPlane *clipPlane
|
---|
| 4506 | ) const
|
---|
[482] | 4507 | {
|
---|
[660] | 4508 | if (clipPlane)
|
---|
[591] | 4509 | {
|
---|
[1047] | 4510 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4511 |
|
---|
[591] | 4512 | ViewCellContainer leaves;
|
---|
| 4513 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4514 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4515 |
|
---|
| 4516 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4517 | {
|
---|
| 4518 | BspNodeGeometry geom;
|
---|
| 4519 |
|
---|
| 4520 | BspNodeGeometry front;
|
---|
| 4521 | BspNodeGeometry back;
|
---|
| 4522 |
|
---|
| 4523 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4524 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4525 |
|
---|
[1052] | 4526 | const float eps = 0.0001f;
|
---|
[1047] | 4527 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4528 |
|
---|
[710] | 4529 | if (cf == -1)
|
---|
[682] | 4530 | {
|
---|
| 4531 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4532 | }
|
---|
[710] | 4533 | else if (cf == 0)
|
---|
[684] | 4534 | {
|
---|
[682] | 4535 | geom.SplitGeometry(front,
|
---|
| 4536 | back,
|
---|
[1047] | 4537 | plane,
|
---|
[682] | 4538 | mViewSpaceBox,
|
---|
[710] | 4539 | eps);
|
---|
[682] | 4540 |
|
---|
[694] | 4541 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4542 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[801] | 4543 |
|
---|
[683] | 4544 | if (back.Valid())
|
---|
| 4545 | {
|
---|
[682] | 4546 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4547 | }
|
---|
[684] | 4548 | }
|
---|
[591] | 4549 | }
|
---|
| 4550 | }
|
---|
| 4551 | else
|
---|
| 4552 | {
|
---|
[801] | 4553 | // export mesh if available
|
---|
[1001] | 4554 | // TODO: some bug here?
|
---|
| 4555 | if (0 && vc->GetMesh())
|
---|
[801] | 4556 | {
|
---|
| 4557 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4558 | }
|
---|
| 4559 | else
|
---|
[1001] | 4560 | {
|
---|
[801] | 4561 | BspNodeGeometry geom;
|
---|
| 4562 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4563 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4564 | }
|
---|
[591] | 4565 | }
|
---|
[482] | 4566 | }
|
---|
| 4567 |
|
---|
| 4568 |
|
---|
| 4569 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4570 | {
|
---|
[580] | 4571 | ViewCellContainer leaves;
|
---|
| 4572 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4573 |
|
---|
| 4574 | int maxDist = 0;
|
---|
[580] | 4575 |
|
---|
[482] | 4576 | // compute max height difference
|
---|
[580] | 4577 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4578 | {
|
---|
[580] | 4579 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4580 | {
|
---|
| 4581 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4582 |
|
---|
[1001] | 4583 | if (i != j)
|
---|
| 4584 | {
|
---|
| 4585 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
| 4586 |
|
---|
| 4587 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4588 |
|
---|
| 4589 | if (dist > maxDist)
|
---|
| 4590 | maxDist = dist;
|
---|
| 4591 | }
|
---|
[482] | 4592 | }
|
---|
| 4593 | }
|
---|
[580] | 4594 |
|
---|
[492] | 4595 | return maxDist;
|
---|
| 4596 | }
|
---|
[482] | 4597 |
|
---|
[492] | 4598 |
|
---|
[879] | 4599 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4600 | {
|
---|
[1021] | 4601 | if (!ViewCellsConstructed())
|
---|
[508] | 4602 | return NULL;
|
---|
[572] | 4603 |
|
---|
| 4604 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4605 | return NULL;
|
---|
| 4606 |
|
---|
[879] | 4607 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4608 | }
|
---|
[503] | 4609 |
|
---|
| 4610 |
|
---|
| 4611 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4612 | {
|
---|
[726] | 4613 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4614 | BspNodeGeometry geom;
|
---|
[590] | 4615 |
|
---|
| 4616 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4617 |
|
---|
[1001] | 4618 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4619 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4620 |
|
---|
[503] | 4621 | vc->SetMesh(mesh);
|
---|
| 4622 | }
|
---|
[508] | 4623 |
|
---|
| 4624 |
|
---|
[532] | 4625 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4626 | {
|
---|
[535] | 4627 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4628 | }
|
---|
[551] | 4629 |
|
---|
| 4630 |
|
---|
[587] | 4631 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4632 | const bool createMesh)
|
---|
[551] | 4633 | {
|
---|
| 4634 | float area = 0;
|
---|
| 4635 | float volume = 0;
|
---|
| 4636 |
|
---|
[580] | 4637 | ViewCellContainer leaves;
|
---|
[582] | 4638 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4639 |
|
---|
| 4640 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4641 |
|
---|
[693] | 4642 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4643 | {
|
---|
| 4644 | BspNodeGeometry geom;
|
---|
[580] | 4645 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4646 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4647 |
|
---|
[719] | 4648 | const float lVol = geom.GetVolume();
|
---|
| 4649 | const float lArea = geom.GetArea();
|
---|
[693] | 4650 |
|
---|
| 4651 | //(*it)->SetVolume(vol);
|
---|
| 4652 | //(*it)->SetArea(area);
|
---|
| 4653 |
|
---|
| 4654 | area += lArea;
|
---|
| 4655 | volume += lVol;
|
---|
| 4656 |
|
---|
| 4657 | CreateMesh(*it);
|
---|
[551] | 4658 | }
|
---|
| 4659 |
|
---|
| 4660 | viewCell->SetVolume(volume);
|
---|
| 4661 | viewCell->SetArea(area);
|
---|
[563] | 4662 | }
|
---|
[575] | 4663 |
|
---|
| 4664 |
|
---|
[693] | 4665 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4666 | {
|
---|
| 4667 | ViewCellContainer leaves;
|
---|
| 4668 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4669 |
|
---|
| 4670 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4671 |
|
---|
| 4672 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4673 | float subdivVol = 0;
|
---|
| 4674 | float newVol = 0;
|
---|
| 4675 |
|
---|
| 4676 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4677 | {
|
---|
| 4678 | BspNodeGeometry geom;
|
---|
| 4679 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4680 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4681 |
|
---|
| 4682 | const float lVol = geom.GetVolume();
|
---|
| 4683 |
|
---|
| 4684 | newVol += lVol;
|
---|
| 4685 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4686 |
|
---|
[704] | 4687 | float thres = 0.9f;
|
---|
[697] | 4688 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4689 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4690 | }
|
---|
| 4691 |
|
---|
| 4692 | Debug << "exact volume: " << vol << endl;
|
---|
| 4693 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4694 | Debug << "new volume: " << newVol << endl;
|
---|
| 4695 | }
|
---|
| 4696 |
|
---|
| 4697 |
|
---|
[577] | 4698 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4699 | {
|
---|
| 4700 | // TODO: do I still need this here?
|
---|
[590] | 4701 | if (0)
|
---|
[693] | 4702 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4703 | }
|
---|
[575] | 4704 |
|
---|
[1021] | 4705 |
|
---|
| 4706 |
|
---|
| 4707 | /**************************************************************************/
|
---|
[1047] | 4708 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4709 | /**************************************************************************/
|
---|
| 4710 |
|
---|
| 4711 |
|
---|
[1278] | 4712 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 4713 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 4714 | {
|
---|
[1027] | 4715 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
[1106] | 4716 |
|
---|
[1278] | 4717 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 4718 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 4719 | }
|
---|
[859] | 4720 |
|
---|
| 4721 |
|
---|
[1021] | 4722 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4723 | {
|
---|
| 4724 | }
|
---|
| 4725 |
|
---|
| 4726 |
|
---|
| 4727 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4728 | {
|
---|
| 4729 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4730 | }
|
---|
| 4731 |
|
---|
| 4732 |
|
---|
| 4733 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4734 | {
|
---|
| 4735 | // view cells tree constructed
|
---|
| 4736 | if (!ViewCellsTreeConstructed())
|
---|
| 4737 | {
|
---|
[1278] | 4738 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 4739 | }
|
---|
| 4740 | else
|
---|
| 4741 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4742 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4743 | }
|
---|
| 4744 | }
|
---|
| 4745 |
|
---|
| 4746 |
|
---|
| 4747 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4748 | {
|
---|
[1278] | 4749 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 4750 | }
|
---|
| 4751 |
|
---|
| 4752 |
|
---|
| 4753 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4754 | {
|
---|
| 4755 | return new VspViewCell(mesh);
|
---|
| 4756 | }
|
---|
| 4757 |
|
---|
| 4758 |
|
---|
| 4759 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4760 | const VssRayContainer &rays)
|
---|
| 4761 | {
|
---|
| 4762 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4763 |
|
---|
[1074] | 4764 | // skip rest if view cells were already constructed
|
---|
[1021] | 4765 | if (ViewCellsConstructed())
|
---|
| 4766 | return 0;
|
---|
| 4767 |
|
---|
| 4768 | int sampleContributions = 0;
|
---|
| 4769 |
|
---|
| 4770 | VssRayContainer sampleRays;
|
---|
| 4771 |
|
---|
| 4772 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4773 |
|
---|
| 4774 | VssRayContainer constructionRays;
|
---|
| 4775 | VssRayContainer savedRays;
|
---|
| 4776 |
|
---|
| 4777 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4778 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4779 |
|
---|
| 4780 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4781 |
|
---|
[1421] | 4782 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 4783 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4784 |
|
---|
[1293] | 4785 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 4786 |
|
---|
[1178] | 4787 | VssRayContainer::const_iterator vit, vit_end = constructionRays.end();
|
---|
[1180] | 4788 |
|
---|
[1178] | 4789 | for (vit = constructionRays.begin(); vit != vit_end; ++ vit)
|
---|
| 4790 | {
|
---|
| 4791 | storedRays.push_back(new VssRay(*(*vit)));
|
---|
| 4792 | }
|
---|
[1176] | 4793 |
|
---|
[1444] | 4794 | ////////////
|
---|
| 4795 | //-- print satistics for subdivision and view cells
|
---|
| 4796 |
|
---|
[1421] | 4797 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 4798 |
|
---|
[1444] | 4799 | ResetViewCells();
|
---|
| 4800 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4801 |
|
---|
[1278] | 4802 | if (0)
|
---|
| 4803 | {
|
---|
| 4804 | OUT_STREAM stream("osptree.xml.zip");
|
---|
| 4805 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 4806 | }
|
---|
[1201] | 4807 |
|
---|
[1021] | 4808 |
|
---|
[1444] | 4809 | //////////
|
---|
| 4810 | //-- recast rest of rays
|
---|
| 4811 |
|
---|
[1286] | 4812 | const long startTime = GetTime();
|
---|
[1021] | 4813 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4814 |
|
---|
| 4815 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4816 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4817 |
|
---|
[1415] | 4818 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 4819 | << " secs" << endl;
|
---|
| 4820 |
|
---|
| 4821 | if (0)
|
---|
| 4822 | {
|
---|
[1415] | 4823 | // real meshes are constructed at this stage
|
---|
[1021] | 4824 | cout << "finalizing view cells ... ";
|
---|
| 4825 | FinalizeViewCells(true);
|
---|
| 4826 | cout << "finished" << endl;
|
---|
| 4827 | }
|
---|
| 4828 |
|
---|
| 4829 | return sampleContributions;
|
---|
| 4830 | }
|
---|
| 4831 |
|
---|
| 4832 |
|
---|
| 4833 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4834 | const VssRayContainer &rays)
|
---|
| 4835 | {
|
---|
| 4836 | if (!ViewCellsConstructed())
|
---|
| 4837 | {
|
---|
| 4838 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 4839 | return 0;
|
---|
| 4840 | }
|
---|
| 4841 |
|
---|
[1418] | 4842 | // if view cells were already constructed before post processing step
|
---|
| 4843 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 4844 | if (mViewCellsFinished)
|
---|
| 4845 | {
|
---|
| 4846 | FinalizeViewCells(true);
|
---|
| 4847 | EvaluateViewCellsStats();
|
---|
| 4848 |
|
---|
| 4849 | return 0;
|
---|
| 4850 | }
|
---|
| 4851 |
|
---|
| 4852 | // check if new view cells turned invalid
|
---|
| 4853 | int minPvs, maxPvs;
|
---|
| 4854 |
|
---|
| 4855 | if (0)
|
---|
| 4856 | {
|
---|
| 4857 | minPvs = mMinPvsSize;
|
---|
| 4858 | maxPvs = mMaxPvsSize;
|
---|
| 4859 | }
|
---|
| 4860 | else
|
---|
| 4861 | {
|
---|
[1414] | 4862 | // problem matt: why did I start here from zero?
|
---|
| 4863 | minPvs = 0;
|
---|
[1021] | 4864 | maxPvs = mMaxPvsSize;
|
---|
| 4865 | }
|
---|
| 4866 |
|
---|
| 4867 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4868 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4869 |
|
---|
| 4870 | SetValidity(minPvs, maxPvs);
|
---|
| 4871 |
|
---|
| 4872 |
|
---|
[1414] | 4873 | // area is not up to date, has to be recomputed
|
---|
[1021] | 4874 | mTotalAreaValid = false;
|
---|
| 4875 | VssRayContainer postProcessRays;
|
---|
| 4876 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4877 |
|
---|
| 4878 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 4879 |
|
---|
| 4880 |
|
---|
| 4881 | // should maybe be done here to allow merge working with area or volume
|
---|
| 4882 | // and to correct the rendering statistics
|
---|
| 4883 | if (0) FinalizeViewCells(false);
|
---|
| 4884 |
|
---|
| 4885 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 4886 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 4887 | mViewCellsTree->SetRoot(root);
|
---|
| 4888 |
|
---|
[1418] | 4889 |
|
---|
| 4890 | //////////////////////////
|
---|
[1414] | 4891 | //-- update pvs in the whole hierarchy
|
---|
[1021] | 4892 | ObjectPvs pvs;
|
---|
| 4893 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 4894 |
|
---|
[1414] | 4895 |
|
---|
[1418] | 4896 | //////////////////////
|
---|
[1021] | 4897 | //-- render simulation after merge + refine
|
---|
[1414] | 4898 |
|
---|
[1415] | 4899 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 4900 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4901 | SimulationStatistics ss;
|
---|
| 4902 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 4903 | cout << ss << endl;
|
---|
[1414] | 4904 |
|
---|
[1486] | 4905 |
|
---|
[1418] | 4906 | ///////////////
|
---|
[1021] | 4907 | //-- compression
|
---|
[1262] | 4908 |
|
---|
[1021] | 4909 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4910 | {
|
---|
[1161] | 4911 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 4912 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 4913 |
|
---|
[1021] | 4914 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 4915 |
|
---|
[1161] | 4916 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 4917 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 4918 | }
|
---|
[1021] | 4919 |
|
---|
[1486] | 4920 | /////////////
|
---|
| 4921 | //-- some tasks still to do on the view cells:
|
---|
| 4922 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1021] | 4923 | if (1) FinalizeViewCells(true);
|
---|
| 4924 |
|
---|
[1418] | 4925 | // write out view cells (this moved to preprocessor)
|
---|
[1486] | 4926 | if (1 && mExportViewCells)
|
---|
[1021] | 4927 | {
|
---|
| 4928 | char filename[100];
|
---|
| 4929 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 4930 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 4931 | }
|
---|
| 4932 |
|
---|
| 4933 | return 0;
|
---|
[859] | 4934 | }
|
---|
| 4935 |
|
---|
[1021] | 4936 |
|
---|
| 4937 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 4938 | {
|
---|
[1021] | 4939 | return VSP_OSP;
|
---|
| 4940 | }
|
---|
[859] | 4941 |
|
---|
[1021] | 4942 |
|
---|
| 4943 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 4944 | {
|
---|
| 4945 | // terminate recursion
|
---|
| 4946 | if (root->IsLeaf())
|
---|
| 4947 | {
|
---|
| 4948 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 4949 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4950 | return leaf->GetViewCell();
|
---|
| 4951 | }
|
---|
| 4952 |
|
---|
| 4953 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 4954 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4955 |
|
---|
| 4956 | // evaluate merge cost for priority traversal
|
---|
| 4957 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4958 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 4959 |
|
---|
| 4960 | float volume = 0;
|
---|
| 4961 |
|
---|
| 4962 | VspNode *front = interior->GetFront();
|
---|
| 4963 | VspNode *back = interior->GetBack();
|
---|
| 4964 |
|
---|
| 4965 |
|
---|
| 4966 | ObjectPvs frontPvs, backPvs;
|
---|
| 4967 |
|
---|
| 4968 | //-- recursivly compute child hierarchies
|
---|
| 4969 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4970 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 4971 |
|
---|
| 4972 |
|
---|
| 4973 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 4974 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4975 |
|
---|
| 4976 | volume += backVc->GetVolume();
|
---|
| 4977 | volume += frontVc->GetVolume();
|
---|
| 4978 |
|
---|
| 4979 | viewCellInterior->SetVolume(volume);
|
---|
| 4980 |
|
---|
| 4981 | return viewCellInterior;
|
---|
| 4982 | }
|
---|
| 4983 |
|
---|
| 4984 |
|
---|
| 4985 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4986 | {
|
---|
| 4987 | if (!ViewCellsConstructed())
|
---|
| 4988 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4989 |
|
---|
| 4990 | // TODO: set reasonable limit
|
---|
| 4991 | const int limit = 20;
|
---|
| 4992 |
|
---|
| 4993 | for (int i = 0; i < limit; ++ i)
|
---|
| 4994 | {
|
---|
| 4995 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 4996 |
|
---|
[1278] | 4997 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 4998 | {
|
---|
| 4999 | return true;
|
---|
| 5000 | }
|
---|
[904] | 5001 | }
|
---|
[859] | 5002 |
|
---|
[1021] | 5003 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5004 | return false;
|
---|
[884] | 5005 | }
|
---|
| 5006 |
|
---|
| 5007 |
|
---|
[1027] | 5008 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5009 | ViewCell *vc,
|
---|
[1416] | 5010 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5011 | const AxisAlignedPlane *clipPlane
|
---|
| 5012 | ) const
|
---|
[1027] | 5013 | {
|
---|
| 5014 | ViewCellContainer leaves;
|
---|
| 5015 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5016 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5017 |
|
---|
[1047] | 5018 | Plane3 plane;
|
---|
| 5019 | if (clipPlane)
|
---|
[1418] | 5020 | {
|
---|
| 5021 | // arbitrary plane definition
|
---|
[1047] | 5022 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5023 | }
|
---|
[1047] | 5024 |
|
---|
[1027] | 5025 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5026 | {
|
---|
| 5027 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
| 5028 | VspLeaf *l = vspVc->mLeaf;
|
---|
| 5029 |
|
---|
[1416] | 5030 | const AxisAlignedBox3 box =
|
---|
| 5031 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaf);
|
---|
[1047] | 5032 |
|
---|
[1418] | 5033 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5034 | continue;
|
---|
| 5035 |
|
---|
[1047] | 5036 | if (clipPlane)
|
---|
| 5037 | {
|
---|
| 5038 | if (box.Side(plane) == -1)
|
---|
[1144] | 5039 | {
|
---|
[1047] | 5040 | exporter->ExportBox(box);
|
---|
[1144] | 5041 | }
|
---|
[1047] | 5042 | else if (box.Side(plane) == 0)
|
---|
| 5043 | {
|
---|
[1418] | 5044 | // intersection
|
---|
[1047] | 5045 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5046 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5047 | exporter->ExportBox(bbox);
|
---|
| 5048 | }
|
---|
| 5049 | }
|
---|
| 5050 | else
|
---|
| 5051 | {
|
---|
[1027] | 5052 | exporter->ExportBox(box);
|
---|
[1047] | 5053 | }
|
---|
[1027] | 5054 | }
|
---|
| 5055 | }
|
---|
| 5056 |
|
---|
| 5057 |
|
---|
[1021] | 5058 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5059 | {
|
---|
| 5060 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5061 | // validy update in preprocessor for all managers)
|
---|
| 5062 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5063 |
|
---|
[1021] | 5064 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5065 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5066 | }
|
---|
| 5067 |
|
---|
| 5068 |
|
---|
| 5069 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5070 | const VssRayContainer &sampleRays)
|
---|
[859] | 5071 | {
|
---|
[997] | 5072 | if (!ViewCellsConstructed())
|
---|
| 5073 | return;
|
---|
[1027] | 5074 |
|
---|
[1021] | 5075 | VssRayContainer visRays;
|
---|
| 5076 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5077 |
|
---|
[1021] | 5078 | if (1)
|
---|
[1047] | 5079 | {
|
---|
[1416] | 5080 | ////////////
|
---|
[1106] | 5081 | //-- export final view cells
|
---|
| 5082 |
|
---|
[1415] | 5083 | // hack color code (show pvs size)
|
---|
[1021] | 5084 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5085 | mColorCode = 0;
|
---|
[1021] | 5086 |
|
---|
| 5087 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5088 |
|
---|
| 5089 | if (exporter)
|
---|
| 5090 | {
|
---|
[1415] | 5091 | const long starttime = GetTime();
|
---|
| 5092 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[859] | 5093 |
|
---|
[1418] | 5094 | // matt: hack for clamping scene
|
---|
[1416] | 5095 | AxisAlignedBox3 bbox = mHierarchyManager->GetViewSpaceBox();
|
---|
| 5096 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1418] | 5097 |
|
---|
[1486] | 5098 | if (CLAMP_TO_BOX)
|
---|
| 5099 | {
|
---|
| 5100 | exporter->SetWireframe();
|
---|
| 5101 | exporter->ExportBox(bbox);
|
---|
| 5102 | exporter->SetFilled();
|
---|
| 5103 | }
|
---|
| 5104 |
|
---|
| 5105 | ///////////////////
|
---|
| 5106 |
|
---|
[1418] | 5107 | if (0 && mExportGeometry)
|
---|
[1021] | 5108 | {
|
---|
[1486] | 5109 | exporter->ExportGeometry(objects, true, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
[1021] | 5110 | }
|
---|
[859] | 5111 |
|
---|
[1021] | 5112 | // export rays
|
---|
[1072] | 5113 | if (0 && mExportRays)
|
---|
[1021] | 5114 | {
|
---|
| 5115 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5116 | }
|
---|
[1416] | 5117 |
|
---|
[1486] | 5118 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
| 5119 | ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, GetClipPlane());
|
---|
[1420] | 5120 |
|
---|
[1021] | 5121 | delete exporter;
|
---|
[1415] | 5122 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5123 | }
|
---|
| 5124 |
|
---|
| 5125 | mColorCode = savedColorCode;
|
---|
| 5126 | }
|
---|
| 5127 |
|
---|
[1287] | 5128 | if (1)
|
---|
| 5129 | {
|
---|
| 5130 | // export final object partition
|
---|
| 5131 | Exporter *exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5132 |
|
---|
| 5133 | if (exporter)
|
---|
| 5134 | {
|
---|
[1415] | 5135 | const long starttime = GetTime();
|
---|
[1416] | 5136 |
|
---|
[1486] | 5137 | // matt: hack for making visualization smaller in size
|
---|
[1416] | 5138 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
| 5139 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1415] | 5140 |
|
---|
[1287] | 5141 | cout << "exporting object space hierarchy ... ";
|
---|
[1486] | 5142 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
[1287] | 5143 |
|
---|
| 5144 | delete exporter;
|
---|
[1415] | 5145 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5146 | }
|
---|
| 5147 | }
|
---|
[1121] | 5148 |
|
---|
[1287] | 5149 | // export pvss of some view cell
|
---|
[1074] | 5150 | ExportPvs(objects, visRays);
|
---|
[859] | 5151 | }
|
---|
| 5152 |
|
---|
[1021] | 5153 |
|
---|
[1074] | 5154 | void VspOspViewCellsManager::ExportPvs(const ObjectContainer &objects,
|
---|
| 5155 | const VssRayContainer &rays)
|
---|
[697] | 5156 | {
|
---|
[1021] | 5157 | int leafOut;
|
---|
| 5158 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[580] | 5159 |
|
---|
[1021] | 5160 | ViewCell::NewMail();
|
---|
| 5161 |
|
---|
| 5162 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5163 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[1419] | 5164 |
|
---|
[1418] | 5165 | const bool sortedViewCells = false;
|
---|
[1021] | 5166 |
|
---|
[1418] | 5167 | if (sortedViewCells)
|
---|
[697] | 5168 | {
|
---|
[1415] | 5169 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1021] | 5170 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5171 | }
|
---|
| 5172 |
|
---|
| 5173 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 5174 | int raysOut = 0;
|
---|
| 5175 |
|
---|
[1419] | 5176 | cout << "\nOutput of " << limit << " view cells: " << endl;
|
---|
| 5177 |
|
---|
[1418] | 5178 | ///////////////
|
---|
[1021] | 5179 | //-- some rays for output
|
---|
[1178] | 5180 |
|
---|
[1021] | 5181 | for (int i = 0; i < limit; ++ i)
|
---|
| 5182 | {
|
---|
| 5183 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5184 |
|
---|
| 5185 | // largest view cell pvs first of random view cell
|
---|
| 5186 | ViewCell *vc = sortedViewCells ?
|
---|
| 5187 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5188 |
|
---|
[1021] | 5189 | ObjectPvs pvs;
|
---|
| 5190 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5191 |
|
---|
[1021] | 5192 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
| 5193 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5194 |
|
---|
[1142] | 5195 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[1021] | 5196 |
|
---|
[1418] | 5197 | ////////////
|
---|
[1021] | 5198 | //-- export the sample rays
|
---|
[1418] | 5199 |
|
---|
[1074] | 5200 | if (1 || mExportRays)
|
---|
[1021] | 5201 | {
|
---|
| 5202 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 5203 | if (1)
|
---|
[1021] | 5204 | {
|
---|
| 5205 | VssRayContainer vcRays;
|
---|
| 5206 | VssRayContainer collectRays;
|
---|
| 5207 |
|
---|
| 5208 | raysOut = min((int)rays.size(), 100);
|
---|
| 5209 |
|
---|
| 5210 | // collect intial view cells
|
---|
| 5211 | ViewCellContainer leaves;
|
---|
| 5212 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5213 |
|
---|
| 5214 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5215 |
|
---|
| 5216 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5217 | {
|
---|
[1047] | 5218 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
|
---|
[1021] | 5219 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5220 |
|
---|
| 5221 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5222 | {
|
---|
| 5223 | collectRays.push_back(*rit);
|
---|
| 5224 | }
|
---|
| 5225 | }
|
---|
| 5226 |
|
---|
| 5227 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 5228 |
|
---|
| 5229 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5230 | {
|
---|
[1418] | 5231 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1021] | 5232 |
|
---|
| 5233 | if (p < raysOut)
|
---|
| 5234 | vcRays.push_back(*rit);
|
---|
| 5235 | }
|
---|
[1418] | 5236 |
|
---|
[1021] | 5237 | //-- export rays piercing this view cell
|
---|
| 5238 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
| 5239 |
|
---|
[1418] | 5240 | //-- export objects seen from the rays
|
---|
| 5241 | Intersectable::NewMail();
|
---|
[1419] | 5242 |
|
---|
| 5243 | VssRayContainer::const_iterator vcit, vcit_end = vcRays.end();
|
---|
[1418] | 5244 | for (vcit = vcRays.begin(); vcit != vcit_end; ++ vcit)
|
---|
[1021] | 5245 | {
|
---|
[1418] | 5246 | VssRay *ray = *vcit;
|
---|
| 5247 | //Intersectable *obj = ray->mTerminationObject;
|
---|
| 5248 | Intersectable *obj = mHierarchyManager->GetIntersectable(*ray, true);
|
---|
| 5249 |
|
---|
| 5250 | if (obj && !obj->Mailed())
|
---|
[1021] | 5251 | {
|
---|
[1418] | 5252 | obj->Mail();
|
---|
[1419] | 5253 | exporter->ExportIntersectable(obj);
|
---|
[1021] | 5254 | }
|
---|
[1418] | 5255 | }
|
---|
[1021] | 5256 | }
|
---|
| 5257 | }
|
---|
| 5258 |
|
---|
[1415] | 5259 | /////////////////
|
---|
[1021] | 5260 | //-- export view cell geometry
|
---|
[1121] | 5261 |
|
---|
[697] | 5262 | exporter->SetWireframe();
|
---|
| 5263 |
|
---|
[1416] | 5264 | Material m;
|
---|
[1021] | 5265 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5266 | exporter->SetForcedMaterial(m);
|
---|
| 5267 |
|
---|
[1416] | 5268 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5269 | exporter->SetFilled();
|
---|
| 5270 |
|
---|
[1021] | 5271 | DEL_PTR(exporter);
|
---|
| 5272 | cout << "finished" << endl;
|
---|
[697] | 5273 | }
|
---|
[1021] | 5274 |
|
---|
| 5275 | Debug << endl;
|
---|
[697] | 5276 | }
|
---|
| 5277 |
|
---|
| 5278 |
|
---|
[1021] | 5279 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5280 | ViewCellContainer &viewCells) const
|
---|
| 5281 | {
|
---|
[1278] | 5282 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5283 | }
|
---|
[580] | 5284 |
|
---|
[1021] | 5285 |
|
---|
| 5286 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5287 | const Vector3 &termination,
|
---|
| 5288 | ViewCellContainer &viewcells)
|
---|
| 5289 | {
|
---|
[1278] | 5290 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5291 | }
|
---|
| 5292 |
|
---|
| 5293 |
|
---|
| 5294 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5295 | const bool exportPvs,
|
---|
| 5296 | const ObjectContainer &objects)
|
---|
| 5297 | {
|
---|
| 5298 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5299 | return false;
|
---|
| 5300 |
|
---|
[1415] | 5301 | const long starttime = GetTime();
|
---|
[1021] | 5302 | cout << "exporting view cells to xml ... ";
|
---|
| 5303 |
|
---|
[1201] | 5304 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5305 |
|
---|
| 5306 | // for output we need unique ids for each view cell
|
---|
| 5307 | CreateUniqueViewCellIds();
|
---|
| 5308 |
|
---|
| 5309 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5310 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5311 |
|
---|
| 5312 |
|
---|
[1486] | 5313 | ///////////////
|
---|
[1021] | 5314 | //-- export bounding boxes
|
---|
[1415] | 5315 | //-- The bounding boxes are used to identify
|
---|
| 5316 | //-- the objects in the rendering engine
|
---|
[1201] | 5317 |
|
---|
[1021] | 5318 | stream << "<BoundingBoxes>" << endl;
|
---|
| 5319 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 5320 |
|
---|
| 5321 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
[580] | 5322 | {
|
---|
[1344] | 5323 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
| 5324 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1021] | 5325 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 5326 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[580] | 5327 | }
|
---|
[1021] | 5328 | stream << "</BoundingBoxes>" << endl;
|
---|
| 5329 |
|
---|
[1415] | 5330 |
|
---|
| 5331 | //////////////////////////
|
---|
[1021] | 5332 | //-- export the view cells and the pvs
|
---|
| 5333 |
|
---|
| 5334 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5335 |
|
---|
| 5336 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5337 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5338 | stream << "</ViewCells>" << endl;
|
---|
| 5339 |
|
---|
[1415] | 5340 | //////////////////////
|
---|
[1201] | 5341 | //-- export the view space hierarchy
|
---|
[1021] | 5342 |
|
---|
[1262] | 5343 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5344 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5345 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5346 |
|
---|
[1278] | 5347 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5348 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5349 |
|
---|
[1415] | 5350 | //////////////////////
|
---|
[1201] | 5351 | //-- export the object space partition
|
---|
| 5352 |
|
---|
[1278] | 5353 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5354 |
|
---|
[1201] | 5355 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5356 | stream.close();
|
---|
[1201] | 5357 |
|
---|
[1415] | 5358 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5359 | return true;
|
---|
| 5360 | }
|
---|
| 5361 |
|
---|
| 5362 |
|
---|
| 5363 |
|
---|
[1027] | 5364 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5365 | const bool active) const
|
---|
[1021] | 5366 | {
|
---|
| 5367 | if (!ViewCellsConstructed())
|
---|
| 5368 | return NULL;
|
---|
| 5369 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5370 | return NULL;
|
---|
[1278] | 5371 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5372 | }
|
---|
| 5373 |
|
---|
| 5374 |
|
---|
| 5375 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5376 | {
|
---|
| 5377 | // matt: TODO
|
---|
| 5378 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5379 |
|
---|
| 5380 | ViewCellContainer leaves;
|
---|
| 5381 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5382 |
|
---|
| 5383 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5384 |
|
---|
| 5385 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5386 | {
|
---|
| 5387 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
[1278] | 5388 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5389 |
|
---|
| 5390 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5391 | }
|
---|
| 5392 |
|
---|
[1021] | 5393 | vc->SetMesh(mesh);
|
---|
| 5394 | }
|
---|
| 5395 |
|
---|
| 5396 |
|
---|
| 5397 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5398 | {
|
---|
| 5399 | // matt: TODO
|
---|
| 5400 | return 0;
|
---|
| 5401 | }
|
---|
| 5402 |
|
---|
| 5403 |
|
---|
| 5404 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5405 | const bool createMesh)
|
---|
| 5406 | {
|
---|
| 5407 | float area = 0;
|
---|
| 5408 | float volume = 0;
|
---|
| 5409 |
|
---|
| 5410 | ViewCellContainer leaves;
|
---|
| 5411 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5412 |
|
---|
| 5413 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5414 |
|
---|
| 5415 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5416 | {
|
---|
[1027] | 5417 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5418 |
|
---|
[1278] | 5419 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 5420 |
|
---|
[1027] | 5421 | const float lVol = box.GetVolume();
|
---|
| 5422 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5423 |
|
---|
| 5424 | //(*it)->SetVolume(vol);
|
---|
| 5425 | //(*it)->SetArea(area);
|
---|
| 5426 |
|
---|
| 5427 | area += lArea;
|
---|
| 5428 | volume += lVol;
|
---|
| 5429 |
|
---|
| 5430 | CreateMesh(*it);
|
---|
[580] | 5431 | }
|
---|
| 5432 |
|
---|
[1021] | 5433 | viewCell->SetVolume(volume);
|
---|
| 5434 | viewCell->SetArea(area);
|
---|
[580] | 5435 | }
|
---|
[1021] | 5436 |
|
---|
[580] | 5437 |
|
---|
[1159] | 5438 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5439 | const bool addRays,
|
---|
| 5440 | const bool storeViewCells)
|
---|
| 5441 | {
|
---|
| 5442 | ViewCellContainer viewcells;
|
---|
| 5443 |
|
---|
| 5444 | ray.mPvsContribution = 0;
|
---|
| 5445 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5446 |
|
---|
| 5447 | static Ray hray;
|
---|
| 5448 | hray.Init(ray);
|
---|
| 5449 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5450 | //Ray hray(ray);
|
---|
| 5451 |
|
---|
| 5452 | float tmin = 0, tmax = 1.0;
|
---|
| 5453 |
|
---|
| 5454 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5455 | return 0;
|
---|
| 5456 |
|
---|
| 5457 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5458 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5459 |
|
---|
[1291] | 5460 | ViewCell::NewMail();
|
---|
| 5461 |
|
---|
[1159] | 5462 | // traverse the view space subdivision
|
---|
| 5463 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5464 |
|
---|
| 5465 | if (storeViewCells)
|
---|
[1291] | 5466 | {
|
---|
| 5467 | // copy viewcells memory efficiently
|
---|
[1159] | 5468 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5469 | ray.mViewCells = viewcells;
|
---|
| 5470 | }
|
---|
| 5471 |
|
---|
| 5472 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5473 |
|
---|
| 5474 | for (; it != viewcells.end(); ++ it)
|
---|
| 5475 | {
|
---|
| 5476 | ViewCell *viewcell = *it;
|
---|
| 5477 |
|
---|
| 5478 | if (viewcell->GetValid())
|
---|
| 5479 | {
|
---|
| 5480 | // if ray not outside of view space
|
---|
| 5481 | float contribution;
|
---|
| 5482 |
|
---|
| 5483 | if (ray.mTerminationObject)
|
---|
| 5484 | {
|
---|
[1168] | 5485 | // todo: maybe not correct for kd node pvs
|
---|
[1159] | 5486 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
[1486] | 5487 | ray.mPdf, contribution))
|
---|
[1159] | 5488 | {
|
---|
| 5489 | ++ ray.mPvsContribution;
|
---|
| 5490 | }
|
---|
| 5491 |
|
---|
| 5492 | ray.mRelativePvsContribution += contribution;
|
---|
| 5493 | }
|
---|
| 5494 |
|
---|
| 5495 | // for directional sampling it is important to count only contributions
|
---|
[1444] | 5496 | // made in one direction!
|
---|
| 5497 | // the other contributions of this sample will be counted for the opposite ray!
|
---|
[1166] | 5498 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1159] | 5499 | if (ray.mOriginObject &&
|
---|
| 5500 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 5501 | ray.mPdf,
|
---|
| 5502 | contribution))
|
---|
| 5503 | {
|
---|
| 5504 | ++ ray.mPvsContribution;
|
---|
| 5505 | ray.mRelativePvsContribution += contribution;
|
---|
| 5506 | }
|
---|
| 5507 | #endif
|
---|
| 5508 | }
|
---|
| 5509 | }
|
---|
| 5510 |
|
---|
[1259] | 5511 | if (!addRays)
|
---|
| 5512 | return ray.mRelativePvsContribution;
|
---|
| 5513 |
|
---|
| 5514 | // sampled objects are stored in the pvs
|
---|
| 5515 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 5516 | {
|
---|
[1259] | 5517 | ViewCell *viewCell = *it;
|
---|
[1159] | 5518 |
|
---|
[1259] | 5519 | if (!viewCell->GetValid())
|
---|
| 5520 | break;
|
---|
[1159] | 5521 |
|
---|
[1259] | 5522 | AddSampleToPvs(
|
---|
| 5523 | ray.mTerminationObject,
|
---|
| 5524 | ray.mTermination,
|
---|
| 5525 | viewCell,
|
---|
| 5526 | ray.mPdf,
|
---|
| 5527 | ray.mRelativePvsContribution);
|
---|
| 5528 |
|
---|
[1166] | 5529 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1168] | 5530 |
|
---|
[1259] | 5531 | AddSampleToPvs(
|
---|
| 5532 | ray.mOriginObject,
|
---|
| 5533 | ray.mOrigin,
|
---|
| 5534 | viewCell,
|
---|
| 5535 | ray.mPdf,
|
---|
| 5536 | ray.mRelativePvsContribution);
|
---|
| 5537 | #endif
|
---|
[1159] | 5538 | }
|
---|
| 5539 |
|
---|
| 5540 | return ray.mRelativePvsContribution;
|
---|
| 5541 | }
|
---|
| 5542 |
|
---|
| 5543 |
|
---|
[1259] | 5544 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 5545 | const Vector3 &hitPoint,
|
---|
| 5546 | ViewCell *vc,
|
---|
| 5547 | const float pdf,
|
---|
| 5548 | float &contribution) const
|
---|
| 5549 | {
|
---|
[1486] | 5550 | // The hierarchy manager decides about the type of sample cast
|
---|
[1278] | 5551 | return mHierarchyManager->AddSampleToPvs(obj, hitPoint, vc, pdf, contribution);
|
---|
[1259] | 5552 | }
|
---|
| 5553 |
|
---|
| 5554 |
|
---|
[1021] | 5555 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5556 | {
|
---|
| 5557 | // TODO
|
---|
| 5558 | }
|
---|
[580] | 5559 |
|
---|
[1201] | 5560 |
|
---|
| 5561 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5562 | ObjectContainer *objects,
|
---|
| 5563 | const bool finalizeViewCells,
|
---|
| 5564 | BoundingBoxConverter *bconverter)
|
---|
| 5565 |
|
---|
| 5566 | {
|
---|
| 5567 | ViewCellsManager *vm =
|
---|
| 5568 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 5569 | #if 0
|
---|
| 5570 | // insert scene objects in tree
|
---|
[1201] | 5571 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 5572 | #endif
|
---|
[1201] | 5573 | return vm;
|
---|
| 5574 | }
|
---|
| 5575 |
|
---|
| 5576 |
|
---|
[1184] | 5577 | #if TEST_EVALUATION
|
---|
[1178] | 5578 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5579 | {
|
---|
[1180] | 5580 | int castSamples = (int)storedRays.size();
|
---|
[1178] | 5581 |
|
---|
| 5582 | char s[64];
|
---|
| 5583 | char statsPrefix[100];
|
---|
[1180] | 5584 |
|
---|
[1178] | 5585 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
| 5586 |
|
---|
| 5587 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 5588 |
|
---|
| 5589 | // should directional sampling be used?
|
---|
| 5590 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
| 5591 |
|
---|
| 5592 | cout << "reseting pvs ... ";
|
---|
| 5593 | const bool startFromZero = true;
|
---|
| 5594 |
|
---|
| 5595 | // reset pvs and start over from zero
|
---|
| 5596 | if (startFromZero)
|
---|
| 5597 | {
|
---|
| 5598 | mViewCellsTree->ResetPvs();
|
---|
| 5599 | }
|
---|
[1444] | 5600 | else
|
---|
[1178] | 5601 | {
|
---|
[1444] | 5602 | // start from current sampless
|
---|
[1178] | 5603 | // statistics before casting more samples
|
---|
| 5604 | cout << "compute new statistics ... ";
|
---|
| 5605 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5606 | string fName = string(statsPrefix) + string(s);
|
---|
| 5607 |
|
---|
| 5608 | mViewCellsTree->ExportStats(fName);
|
---|
| 5609 | cout << "finished" << endl;
|
---|
| 5610 | }
|
---|
| 5611 | cout << "finished" << endl;
|
---|
| 5612 |
|
---|
| 5613 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 5614 |
|
---|
| 5615 | VssRayContainer evaluationSamples = storedRays;
|
---|
| 5616 | const int samplingType = mEvaluationSamplingType;
|
---|
| 5617 |
|
---|
| 5618 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1486] | 5619 |
|
---|
[1178] | 5620 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
[1486] | 5621 |
|
---|
[1178] | 5622 | cout << "finished" << endl;
|
---|
| 5623 |
|
---|
| 5624 | cout << "compute new statistics ... ";
|
---|
[1486] | 5625 |
|
---|
[1221] | 5626 | // propagate pvs or pvs size information
|
---|
[1178] | 5627 | ObjectPvs pvs;
|
---|
| 5628 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 5629 |
|
---|
| 5630 |
|
---|
[1486] | 5631 | /////////////////////
|
---|
| 5632 | // $§temporary matt: test render cost
|
---|
| 5633 |
|
---|
[1259] | 5634 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5635 | string fileName = string(statsPrefix) + string(s);
|
---|
[1178] | 5636 |
|
---|
[1259] | 5637 | ViewCellContainer leaves;
|
---|
[1184] | 5638 |
|
---|
[1259] | 5639 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5640 | float rc = 0;
|
---|
[1421] | 5641 |
|
---|
[1259] | 5642 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1421] | 5643 |
|
---|
[1259] | 5644 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5645 | {
|
---|
| 5646 | ViewCell *vc = *vit;
|
---|
[1184] | 5647 | int pvs = vc->GetPvs().CountObjectsInPvs();
|
---|
[1259] | 5648 | float vol = vc->GetVolume();
|
---|
| 5649 | rc += pvs * vol;
|
---|
[1184] | 5650 | }
|
---|
| 5651 |
|
---|
[1302] | 5652 | Debug << "\nrendercost hack: " << rc / mHierarchyManager->GetVspTree()->GetBoundingBox().GetVolume() << endl;
|
---|
[1178] | 5653 | mViewCellsTree->ExportStats(fileName);
|
---|
| 5654 | cout << "finished" << endl;
|
---|
| 5655 |
|
---|
| 5656 | disposeRays(evaluationSamples, NULL);
|
---|
| 5657 | }
|
---|
[1179] | 5658 | #endif
|
---|
[580] | 5659 |
|
---|
[860] | 5660 |
|
---|
[878] | 5661 | }
|
---|