[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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[1233] | 10 | #include "HierarchyManager.h"
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[440] | 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[931] | 17 | #include "BoundingBoxConverter.h"
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[979] | 18 | #include "GlRenderer.h"
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[1001] | 19 | #include "ResourceManager.h"
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[1315] | 20 | #include "IntersectableWrapper.h"
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[1233] | 21 | #include "VspTree.h"
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| 22 | #include "OspTree.h"
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[1259] | 23 | #include "BvHierarchy.h"
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[1520] | 24 | #include "SamplingStrategy.h"
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[1545] | 25 | #include "SceneGraph.h"
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[440] | 26 |
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[1278] | 27 |
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[1667] | 28 | // warning: Should not count origin object for sampling because it disturbs heuristics
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| 29 | #define SAMPLE_ORIGIN_OBJECTS 1 // matt temp
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[931] | 30 |
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[1594] | 31 | // $$JB HACK
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[1627] | 32 | #define USE_KD_PVS 0
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[1613] | 33 | #define KD_PVS_AREA 1e-3f
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[1486] | 34 |
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[863] | 35 | namespace GtpVisibilityPreprocessor {
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[860] | 36 |
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| 37 |
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[712] | 38 | // HACK
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| 39 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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[1660] | 40 | const static bool CLAMP_TO_BOX = true;
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[517] | 41 |
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[697] | 42 | template <typename T> class myless
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| 43 | {
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| 44 | public:
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| 45 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 46 | bool operator() (T v1, T v2) const
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| 47 | {
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| 48 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 49 | }
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| 50 | };
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| 51 |
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| 52 |
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[1264] | 53 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 54 | mRenderer(NULL),
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[574] | 55 | mInitialSamples(0),
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[440] | 56 | mConstructionSamples(0),
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| 57 | mPostProcessSamples(0),
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[470] | 58 | mVisualizationSamples(0),
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| 59 | mTotalAreaValid(false),
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[517] | 60 | mTotalArea(0.0f),
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[547] | 61 | mViewCellsFinished(false),
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[562] | 62 | mMaxPvsSize(9999999),
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[564] | 63 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 64 | mMaxPvsRatio(1.0),
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[1145] | 65 | mViewCellPvsIsUpdated(false),
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[1264] | 66 | mPreprocessor(NULL),
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[1545] | 67 | mViewCellsTree(viewCellsTree),
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| 68 | mUsePredefinedViewCells(false)
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[440] | 69 | {
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[542] | 70 | mViewSpaceBox.Initialize();
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[482] | 71 | ParseEnvironment();
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[580] | 72 |
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[1264] | 73 | mViewCellsTree->SetViewCellsManager(this);
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| 74 | //mViewCellsTree = new ViewCellsTree(this);
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[440] | 75 | }
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| 76 |
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[517] | 77 |
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[482] | 78 | void ViewCellsManager::ParseEnvironment()
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| 79 | {
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[503] | 80 | // visualization stuff
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[1004] | 81 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 82 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 83 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 84 |
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[1004] | 85 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 86 |
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[1004] | 87 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 88 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 89 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 90 |
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[1004] | 91 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 92 |
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[1004] | 93 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 94 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 95 |
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[1004] | 96 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 98 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 99 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 100 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 101 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 102 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 103 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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| 104 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 105 |
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[1004] | 106 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 107 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 108 |
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[664] | 109 | char buf[100];
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[1004] | 110 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 111 |
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[660] | 112 |
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[1020] | 113 | // sampling type for view cells construction samples
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[664] | 114 | if (strcmp(buf, "box") == 0)
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[722] | 115 | {
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[1520] | 116 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 117 | }
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[664] | 118 | else if (strcmp(buf, "directional") == 0)
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[722] | 119 | {
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[1520] | 120 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 121 | }
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[1020] | 122 | else if (strcmp(buf, "object_directional") == 0)
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| 123 | {
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[1520] | 124 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 125 | }
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[1022] | 126 | /*else if (strcmp(buf, "interior") == 0)
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| 127 | {
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| 128 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 129 | }*/
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[1020] | 130 | else
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| 131 | {
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[666] | 132 | Debug << "error! wrong sampling type" << endl;
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| 133 | exit(0);
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| 134 | }
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[660] | 135 |
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[1020] | 136 | // sampling type for evaluation samples
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[1004] | 137 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 138 |
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| 139 | if (strcmp(buf, "box") == 0)
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| 140 | {
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[1520] | 141 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 142 | }
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| 143 | else if (strcmp(buf, "directional") == 0)
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| 144 | {
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[1520] | 145 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 146 | }
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[1020] | 147 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 148 | {
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[1520] | 149 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 150 | }
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[1022] | 151 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 152 | {
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[1520] | 153 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 154 | }*/
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[1020] | 155 | else
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| 156 | {
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[722] | 157 | Debug << "error! wrong sampling type" << endl;
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| 158 | exit(0);
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| 159 | }
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[503] | 160 |
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[1004] | 161 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 162 |
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[734] | 163 | if (strcmp(buf, "perobject") == 0)
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[728] | 164 | {
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| 165 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 166 | }
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| 167 | else if (strcmp(buf, "directional") == 0)
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| 168 | {
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| 169 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 170 | }
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| 171 | else
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| 172 | {
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| 173 | Debug << "error! wrong sampling type" << endl;
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| 174 | exit(0);
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| 175 | }
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| 176 |
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[1004] | 177 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 178 |
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[482] | 179 | if (strcmp(buf, "PVS") == 0)
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| 180 | mColorCode = 1;
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| 181 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 182 | mColorCode = 2;
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| 183 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 184 | mColorCode = 3;
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| 185 | else
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| 186 | mColorCode = 0;
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| 187 |
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[664] | 188 |
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[1418] | 189 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 190 | Debug << "color code: " << mColorCode << endl;
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| 191 |
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| 192 | Debug << "export rays: " << mExportRays << endl;
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| 193 | Debug << "export geometry: " << mExportGeometry << endl;
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| 194 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 195 |
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| 196 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 197 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 198 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 199 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 200 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 201 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 202 | Debug << "export to file: " << mExportViewCells << endl;
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| 203 |
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[801] | 204 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 205 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 206 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 207 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 208 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 209 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 210 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 211 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 212 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 213 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 214 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 215 |
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| 216 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 217 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[664] | 218 | Debug << endl;
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[440] | 219 | }
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| 220 |
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[485] | 221 |
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[440] | 222 | ViewCellsManager::~ViewCellsManager()
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| 223 | {
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[1020] | 224 | // HACK: if view cells tree does not
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[1264] | 225 | // handle view cells, we have to do it here
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[1020] | 226 | // question: rather create view cells resource manager?
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[598] | 227 | if (!ViewCellsTreeConstructed())
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[1141] | 228 | {
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[598] | 229 | CLEAR_CONTAINER(mViewCells);
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[1141] | 230 | }
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[440] | 231 | }
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| 232 |
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[1221] | 233 |
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[1613] | 234 |
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[1221] | 235 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 236 | {
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| 237 | Mesh *m = vc->GetMesh();
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| 238 |
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[1563] | 239 | if (m)
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| 240 | {
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| 241 | m->ComputeBoundingBox();
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| 242 | return m->mBox;
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[859] | 243 | }
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[485] | 244 |
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[859] | 245 | AxisAlignedBox3 box;
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| 246 | box.Initialize();
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| 247 |
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| 248 | if (!vc->IsLeaf()) {
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| 249 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 250 |
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| 251 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 252 | for (; it != vci->mChildren.end(); ++it) {
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| 253 | box.Include(GetViewCellBox(*it));
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| 254 | }
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| 255 | }
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| 256 |
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| 257 | return box;
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| 258 | }
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| 259 |
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[693] | 260 |
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[574] | 261 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 262 | const int sampleType,
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| 263 | VssRayContainer &passSamples) const
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[527] | 264 | {
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[570] | 265 | SimpleRayContainer simpleRays;
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[1633] | 266 | long startTime = GetTime();
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[564] | 267 |
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[1221] | 268 | mPreprocessor->GenerateRays(samplesPerPass, sampleType, simpleRays);
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[1633] | 269 | cout << "generated " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[1221] | 270 |
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[1633] | 271 | startTime = GetTime();
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[573] | 272 | // shoot simple ray and add it to importance samples
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[1520] | 273 | mPreprocessor->CastRays(simpleRays, passSamples, true);
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[1633] | 274 | cout << "cast " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[570] | 275 |
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[574] | 276 | return (int)passSamples.size();
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| 277 | }
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[570] | 278 |
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[574] | 279 |
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| 280 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 281 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 282 | {
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| 283 | cout << "disposing samples ... ";
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[582] | 284 | long startTime = GetTime();
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| 285 | int n = (int)rays.size();
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| 286 |
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[573] | 287 | if (outRays)
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[542] | 288 | {
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[574] | 289 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 290 | for (it = rays.begin(); it != it_end; ++ it)
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| 291 | {
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| 292 | outRays->push_back(*it);
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| 293 | }
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[573] | 294 | }
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| 295 | else
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| 296 | {
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[639] | 297 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 298 | for (it = rays.begin(); it != it_end; ++ it)
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| 299 | {
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| 300 | if (!(*it)->IsActive())
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| 301 | delete (*it);
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| 302 | }
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[573] | 303 | }
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[639] | 304 |
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[574] | 305 | cout << "finished" << endl;
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[582] | 306 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 307 | }
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[570] | 308 |
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| 309 |
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[573] | 310 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 311 | {
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| 312 | int numSamples = 0;
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[1077] | 313 |
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[573] | 314 | SimpleRayContainer simpleRays;
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[574] | 315 | VssRayContainer initialSamples;
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[540] | 316 |
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[1381] | 317 | // store pointer to preprocessor for further use during construction
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| 318 | mPreprocessor = preprocessor;
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| 319 |
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[1563] | 320 |
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[1381] | 321 | ///////////////////////////////////////////////////////
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| 322 | //-- Initial sampling for the construction of the view cell hierarchy.
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| 323 | //-- We use uniform sampling / box based sampling.
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| 324 |
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[752] | 325 | long startTime = GetTime();
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[1633] | 326 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
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[1414] | 327 |
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[1381] | 328 | // cast initial samples
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| 329 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
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[1278] | 330 |
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[1221] | 331 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[574] | 332 |
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[573] | 333 | // construct view cells
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[752] | 334 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
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[540] | 335 |
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[727] | 336 | // initial samples count for overall samples ...
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[752] | 337 | numSamples += mInitialSamples;
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[542] | 338 |
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[574] | 339 | // rays can be passed or deleted
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[639] | 340 | disposeRays(initialSamples, outRays);
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[752] | 341 |
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| 342 | cout << "time needed for initial construction: "
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| 343 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 344 |
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| 345 | Debug << "time needed for initial construction: "
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| 346 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 347 |
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[1444] | 348 | // collect view cells and compute statistics
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| 349 | ResetViewCells();
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[752] | 350 |
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[1444] | 351 |
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| 352 | ///////////////////
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| 353 | //-- Initial hierarchy construction finished.
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[1381] | 354 | //-- We can do some stats and visualization
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| 355 |
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[1444] | 356 | if (0)
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[660] | 357 | {
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[1444] | 358 | //-- export initial view cell partition
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[1563] | 359 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
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[1416] | 360 |
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[1414] | 361 | const string filename("viewcells.wrl");
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| 362 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
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[712] | 363 |
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[660] | 364 | if (exporter)
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| 365 | {
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[1414] | 366 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
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| 367 |
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[660] | 368 | if (mExportGeometry)
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[712] | 369 | {
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[660] | 370 | exporter->ExportGeometry(preprocessor->mObjects);
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[712] | 371 | }
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[660] | 372 |
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[750] | 373 | exporter->SetWireframe();
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[1416] | 374 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
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[660] | 375 |
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| 376 | delete exporter;
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[712] | 377 | cout << "finished" << endl;
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[660] | 378 | }
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| 379 | }
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| 380 |
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[1381] | 381 |
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[1419] | 382 | //////////////////////
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[1381] | 383 | //-- Cast some more sampling after initial construction.
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| 384 | //-- The additional rays can be used to gain
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| 385 | //-- some more information before the bottom-up merge
|
---|
| 386 | //-- note: guided rays could be used for this task
|
---|
| 387 |
|
---|
[1414] | 388 | // time spent after construction of the initial partition
|
---|
[1381] | 389 | startTime = GetTime();
|
---|
[574] | 390 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[666] | 391 | // should we use directional samples?
|
---|
[1520] | 392 | bool dirSamples = (mSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 393 |
|
---|
| 394 | while (numSamples < n)
|
---|
| 395 | {
|
---|
[596] | 396 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 397 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 398 |
|
---|
[574] | 399 | VssRayContainer constructionSamples;
|
---|
| 400 |
|
---|
[694] | 401 | const int samplingType = mSamplingType;
|
---|
[1444] | 402 | //dirSamples ? Preprocessor::DIRECTION_BASED_DISTRIBUTION : Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[667] | 403 |
|
---|
[720] | 404 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 405 |
|
---|
[727] | 406 | // cast new samples
|
---|
[574] | 407 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 408 | samplingType,
|
---|
[574] | 409 | constructionSamples);
|
---|
| 410 |
|
---|
| 411 | cout << "finished" << endl;
|
---|
| 412 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 413 |
|
---|
[727] | 414 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 415 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 416 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 417 |
|
---|
[574] | 418 | cout << "finished" << endl;
|
---|
| 419 |
|
---|
[639] | 420 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 421 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 422 | }
|
---|
[752] | 423 |
|
---|
[1381] | 424 |
|
---|
[1563] | 425 | if (0)
|
---|
| 426 | {
|
---|
| 427 | ///////////////
|
---|
| 428 | //-- Get stats after the additional sampling step
|
---|
| 429 | //-- and before the bottom-up merge step
|
---|
[570] | 430 |
|
---|
[1563] | 431 | EvaluateViewCellsStats();
|
---|
| 432 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 433 | << mCurrentViewCellsStats << endl;
|
---|
| 434 |
|
---|
| 435 | mRenderer->RenderScene();
|
---|
| 436 | SimulationStatistics ss;
|
---|
| 437 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 438 |
|
---|
[1563] | 439 | Debug << ss << endl;
|
---|
| 440 | }
|
---|
[660] | 441 |
|
---|
[1416] | 442 | ////////////////////
|
---|
[1381] | 443 | //-- post processing of the initial construction
|
---|
| 444 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 445 | //-- We can additionally cast some post processing sample rays.
|
---|
| 446 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 447 |
|
---|
| 448 | VssRayContainer postProcessSamples;
|
---|
| 449 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 450 |
|
---|
| 451 | CastPassSamples(mPostProcessSamples, mSamplingType, postProcessSamples);
|
---|
| 452 |
|
---|
| 453 | cout << "finished" << endl;
|
---|
[574] | 454 | cout << "starting post processing and visualization" << endl;
|
---|
| 455 |
|
---|
[1444] | 456 | // store view cells with rays for post processing?
|
---|
[574] | 457 | const bool storeViewCells = true;
|
---|
[605] | 458 |
|
---|
| 459 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 460 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 461 |
|
---|
[1381] | 462 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 463 |
|
---|
[1414] | 464 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 465 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 466 |
|
---|
[1414] | 467 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 468 | disposeRays(postProcessSamples, outRays);
|
---|
| 469 |
|
---|
[801] | 470 |
|
---|
[1416] | 471 | ////////////////
|
---|
[1381] | 472 | //-- Evaluation of the resulting view cell partition.
|
---|
| 473 | //-- We cast a number of new samples and measure the render cost
|
---|
| 474 |
|
---|
[801] | 475 | if (mEvaluateViewCells)
|
---|
| 476 | {
|
---|
[1145] | 477 | EvalViewCellPartition();
|
---|
[801] | 478 | }
|
---|
[1381] | 479 |
|
---|
[1416] | 480 | /////////////////
|
---|
[1381] | 481 | //-- Finally, we do some visualization
|
---|
| 482 |
|
---|
[666] | 483 | if (mShowVisualization)
|
---|
| 484 | {
|
---|
[1633] | 485 | ///////////////
|
---|
[1381] | 486 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[1633] | 487 |
|
---|
| 488 | VssRayContainer visSamples;
|
---|
| 489 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
| 490 | mSamplingType,
|
---|
| 491 | visSamples);
|
---|
[574] | 492 |
|
---|
[666] | 493 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[1633] | 494 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
[574] | 495 |
|
---|
[1444] | 496 | // various visualizations
|
---|
[1633] | 497 | Visualize(preprocessor->mObjects, visSamples);
|
---|
[574] | 498 |
|
---|
[1633] | 499 | disposeRays(visSamples, outRays);
|
---|
[666] | 500 | }
|
---|
[574] | 501 |
|
---|
[1444] | 502 | // recalculate view cells
|
---|
| 503 | EvaluateViewCellsStats();
|
---|
| 504 |
|
---|
[573] | 505 | return numSamples;
|
---|
[527] | 506 | }
|
---|
| 507 |
|
---|
[547] | 508 |
|
---|
[1418] | 509 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 510 | {
|
---|
| 511 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 512 | }
|
---|
| 513 |
|
---|
| 514 |
|
---|
[752] | 515 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 516 | const int nViewCells)
|
---|
[728] | 517 | {
|
---|
| 518 | std::ofstream outstream;
|
---|
| 519 | outstream.open(filename.c_str());
|
---|
| 520 |
|
---|
| 521 | ViewCellContainer viewCells;
|
---|
[735] | 522 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 523 |
|
---|
| 524 | float maxRenderCost, minRenderCost;
|
---|
[734] | 525 |
|
---|
| 526 | // sort by render cost
|
---|
| 527 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 528 |
|
---|
| 529 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 530 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 531 |
|
---|
[991] | 532 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 533 |
|
---|
[997] | 534 | int histoIntervals;
|
---|
[1004] | 535 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 536 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 537 |
|
---|
[997] | 538 | int histoMaxVal;
|
---|
[1004] | 539 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 540 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 541 |
|
---|
[997] | 542 |
|
---|
[728] | 543 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 544 | const float stepSize = range / (float)intervals;
|
---|
[728] | 545 |
|
---|
[735] | 546 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 547 |
|
---|
| 548 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 549 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 550 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 551 |
|
---|
[736] | 552 | int j = 0;
|
---|
[735] | 553 | int i = 0;
|
---|
| 554 |
|
---|
[734] | 555 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 556 |
|
---|
[744] | 557 | // count for integral
|
---|
| 558 | float volSum = 0;
|
---|
| 559 | int smallerCostSum = 0;
|
---|
[735] | 560 |
|
---|
[734] | 561 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 562 | while (1)
|
---|
| 563 | {
|
---|
[744] | 564 | // count for histogram value
|
---|
| 565 | float volDif = 0;
|
---|
| 566 | int smallerCostDif = 0;
|
---|
[736] | 567 |
|
---|
[734] | 568 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 569 | {
|
---|
[744] | 570 | volSum += viewCells[i]->GetVolume();
|
---|
| 571 | volDif += viewCells[i]->GetVolume();
|
---|
| 572 |
|
---|
[734] | 573 | ++ i;
|
---|
[744] | 574 | ++ smallerCostSum;
|
---|
| 575 | ++ smallerCostDif;
|
---|
[734] | 576 | }
|
---|
[736] | 577 |
|
---|
[744] | 578 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 579 | break;
|
---|
[736] | 580 |
|
---|
[744] | 581 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 582 | const float volRatioSum = volSum / totalVol;
|
---|
| 583 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 584 |
|
---|
[991] | 585 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 586 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 587 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 588 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 589 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 590 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 591 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 592 |
|
---|
| 593 | // increase current render cost
|
---|
[734] | 594 | currentRenderCost += stepSize;
|
---|
| 595 | }
|
---|
[735] | 596 |
|
---|
[734] | 597 | outstream.close();
|
---|
| 598 | }
|
---|
| 599 |
|
---|
[735] | 600 |
|
---|
[979] | 601 |
|
---|
| 602 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 603 | ObjectContainer *objects,
|
---|
[1676] | 604 | bool finalizeViewCells,
|
---|
[979] | 605 | BoundingBoxConverter *bconverter)
|
---|
| 606 |
|
---|
| 607 | {
|
---|
| 608 | ViewCellsParser parser;
|
---|
| 609 | ViewCellsManager *vm = NULL;
|
---|
| 610 |
|
---|
[1616] | 611 | const long startTime = GetTime();
|
---|
| 612 | bool success = parser.ParseViewCellsFile(filename, &vm, objects, bconverter);
|
---|
| 613 |
|
---|
| 614 | if (success)
|
---|
[979] | 615 | {
|
---|
[1621] | 616 | //vm->ResetViewCells();
|
---|
[1679] | 617 | //hack
|
---|
| 618 | vm->mViewCells.clear();
|
---|
| 619 | ViewCellContainer leaves;
|
---|
| 620 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
[979] | 621 |
|
---|
[1679] | 622 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[1621] | 623 |
|
---|
[1679] | 624 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 625 | {
|
---|
| 626 | vm->mViewCells.push_back(*it);
|
---|
| 627 | }
|
---|
[979] | 628 | vm->mViewCellsFinished = true;
|
---|
| 629 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 630 |
|
---|
| 631 | if (finalizeViewCells)
|
---|
| 632 | {
|
---|
[1444] | 633 | // create the meshes and compute volumes
|
---|
[979] | 634 | vm->FinalizeViewCells(true);
|
---|
[1616] | 635 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 636 | }
|
---|
| 637 |
|
---|
| 638 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 639 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 640 | }
|
---|
| 641 | else
|
---|
| 642 | {
|
---|
| 643 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 644 | DEL_PTR(vm);
|
---|
| 645 | }
|
---|
| 646 |
|
---|
| 647 | return vm;
|
---|
| 648 | }
|
---|
| 649 |
|
---|
| 650 |
|
---|
| 651 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 652 | const bool exportPvs,
|
---|
| 653 | const ObjectContainer &objects)
|
---|
| 654 | {
|
---|
[1002] | 655 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 656 | {
|
---|
[997] | 657 | return false;
|
---|
[1545] | 658 | }
|
---|
[997] | 659 |
|
---|
[979] | 660 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 661 |
|
---|
[1201] | 662 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 663 |
|
---|
| 664 | // for output we need unique ids for each view cell
|
---|
| 665 | CreateUniqueViewCellIds();
|
---|
| 666 |
|
---|
| 667 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 668 | stream << "<VisibilitySolution>" << endl;
|
---|
| 669 |
|
---|
[1262] | 670 | if (exportPvs)
|
---|
| 671 | {
|
---|
| 672 | //-- export bounding boxes
|
---|
| 673 | stream << "<BoundingBoxes>" << endl;
|
---|
[1614] | 674 | #if USE_KD_PVS
|
---|
| 675 | KdIntersectableMap::const_iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
[979] | 676 |
|
---|
[1614] | 677 | int id = 0;
|
---|
| 678 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 679 | {
|
---|
| 680 | Intersectable *obj = (*kit).second;
|
---|
| 681 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
| 682 |
|
---|
| 683 | obj->SetId(id);
|
---|
| 684 |
|
---|
| 685 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 686 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 687 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 688 | }
|
---|
| 689 | #else
|
---|
| 690 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 691 |
|
---|
[1262] | 692 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 693 | {
|
---|
[1563] | 694 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 695 |
|
---|
[1551] | 696 | ////////////
|
---|
[979] | 697 | //-- the bounding boxes
|
---|
[1563] | 698 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[979] | 699 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 700 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 701 | }
|
---|
[1614] | 702 | #endif
|
---|
[1262] | 703 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 704 | }
|
---|
[979] | 705 |
|
---|
[1264] | 706 |
|
---|
[1551] | 707 | /////////////
|
---|
[979] | 708 | //-- export the view cells and the pvs
|
---|
| 709 |
|
---|
| 710 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 711 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 712 |
|
---|
[979] | 713 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 714 |
|
---|
| 715 | stream << "</ViewCells>" << endl;
|
---|
| 716 |
|
---|
| 717 |
|
---|
[1551] | 718 | //////////
|
---|
[1262] | 719 | //-- export the view space hierarchy
|
---|
[979] | 720 |
|
---|
[1262] | 721 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 722 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 723 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 724 |
|
---|
[979] | 725 | mVspBspTree->Export(stream);
|
---|
[1286] | 726 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 727 |
|
---|
| 728 | stream << "</VisibilitySolution>" << endl;
|
---|
| 729 |
|
---|
| 730 | stream.close();
|
---|
| 731 | cout << "finished" << endl;
|
---|
| 732 |
|
---|
| 733 | return true;
|
---|
| 734 | }
|
---|
| 735 |
|
---|
| 736 |
|
---|
[735] | 737 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 738 | const int nViewCells)
|
---|
[734] | 739 | {
|
---|
| 740 | std::ofstream outstream;
|
---|
| 741 | outstream.open(filename.c_str());
|
---|
| 742 |
|
---|
| 743 | ViewCellContainer viewCells;
|
---|
[735] | 744 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 745 |
|
---|
[997] | 746 | int maxPvs, maxVal, minVal;
|
---|
[734] | 747 |
|
---|
[997] | 748 | // sort by pvs size
|
---|
[735] | 749 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 750 |
|
---|
[1142] | 751 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
[997] | 752 | minVal = 0;
|
---|
| 753 |
|
---|
[991] | 754 | // hack: normalize pvs size
|
---|
[997] | 755 | int histoMaxVal;
|
---|
[1004] | 756 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 757 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 758 |
|
---|
[1121] | 759 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 760 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 761 |
|
---|
[997] | 762 | int histoIntervals;
|
---|
[1004] | 763 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 764 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 765 |
|
---|
[997] | 766 | const int range = maxVal - minVal;
|
---|
[735] | 767 | int stepSize = range / intervals;
|
---|
| 768 |
|
---|
[997] | 769 | // set step size to avoid endless loop
|
---|
[735] | 770 | if (!stepSize) stepSize = 1;
|
---|
[979] | 771 |
|
---|
| 772 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 773 |
|
---|
[735] | 774 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 775 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 776 |
|
---|
[997] | 777 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
| 778 |
|
---|
[735] | 779 | int i = 0;
|
---|
| 780 | int j = 0;
|
---|
[744] | 781 | float volSum = 0;
|
---|
| 782 | int smallerSum = 0;
|
---|
| 783 |
|
---|
[735] | 784 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 785 |
|
---|
[997] | 786 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 787 | {
|
---|
[744] | 788 | float volDif = 0;
|
---|
| 789 | int smallerDif = 0;
|
---|
[736] | 790 |
|
---|
[997] | 791 | while ((i < (int)viewCells.size()) &&
|
---|
[1142] | 792 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
[735] | 793 | {
|
---|
[744] | 794 | volDif += viewCells[i]->GetVolume();
|
---|
| 795 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 796 |
|
---|
[735] | 797 | ++ i;
|
---|
[744] | 798 | ++ smallerDif;
|
---|
| 799 | ++ smallerSum;
|
---|
[735] | 800 | }
|
---|
[736] | 801 |
|
---|
[997] | 802 | if (0 && (i < (int)viewCells.size()))
|
---|
[1142] | 803 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i])
|
---|
[1121] | 804 | << " " << currentPvs << endl;
|
---|
[997] | 805 |
|
---|
[744] | 806 | const float volRatioDif = volDif / totalVol;
|
---|
| 807 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 808 |
|
---|
[997] | 809 | outstream << "#Pass\n" << j << endl;
|
---|
| 810 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 811 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 812 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 813 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 814 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 815 |
|
---|
| 816 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 817 |
|
---|
[997] | 818 | //-- increase current pvs size to define next interval
|
---|
| 819 | currentPvs += stepSize;
|
---|
[728] | 820 | }
|
---|
[991] | 821 |
|
---|
[735] | 822 | outstream.close();
|
---|
[728] | 823 | }
|
---|
| 824 |
|
---|
[735] | 825 |
|
---|
[1002] | 826 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 827 | {
|
---|
| 828 | return mExportPvs;
|
---|
| 829 | }
|
---|
| 830 |
|
---|
| 831 |
|
---|
[1259] | 832 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 833 | const Vector3 &hitPoint,
|
---|
| 834 | ViewCell *vc,
|
---|
| 835 | const float pdf,
|
---|
| 836 | float &contribution) const
|
---|
| 837 | {
|
---|
| 838 | if (!obj) return false;
|
---|
| 839 |
|
---|
| 840 | // potentially visible objects
|
---|
| 841 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 842 | }
|
---|
| 843 |
|
---|
| 844 |
|
---|
[1580] | 845 | void ViewCellsManager::ResetPvs()
|
---|
| 846 | {
|
---|
| 847 | if (ViewCellsTreeConstructed())
|
---|
| 848 | {
|
---|
| 849 | mViewCellsTree->ResetPvs();
|
---|
| 850 | }
|
---|
| 851 | else
|
---|
| 852 | {
|
---|
| 853 | cout << "view cells tree not constructed" << endl;
|
---|
| 854 | }
|
---|
| 855 | }
|
---|
| 856 |
|
---|
| 857 |
|
---|
[1679] | 858 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
| 859 | {
|
---|
| 860 | mViewCellsTree->ExportStats(fileName);
|
---|
| 861 | }
|
---|
| 862 |
|
---|
| 863 |
|
---|
[1145] | 864 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 865 | {
|
---|
| 866 | int samplesPerPass;
|
---|
| 867 | int numSamples;
|
---|
| 868 | int castSamples = 0;
|
---|
[1570] | 869 | char str[64];
|
---|
[660] | 870 |
|
---|
[1004] | 871 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 872 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 873 |
|
---|
[664] | 874 | char statsPrefix[100];
|
---|
[1004] | 875 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 876 |
|
---|
[664] | 877 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 878 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 879 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 880 |
|
---|
[666] | 881 | // should directional sampling be used?
|
---|
[1603] | 882 | bool dirSamples =
|
---|
| 883 | (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 884 |
|
---|
[801] | 885 | cout << "reseting pvs ... ";
|
---|
| 886 |
|
---|
[1145] | 887 | const bool startFromZero = true;
|
---|
[801] | 888 |
|
---|
[666] | 889 | // reset pvs and start over from zero
|
---|
| 890 | if (startFromZero)
|
---|
| 891 | {
|
---|
| 892 | mViewCellsTree->ResetPvs();
|
---|
| 893 | }
|
---|
[1145] | 894 | else // start from current sampless
|
---|
[666] | 895 | {
|
---|
[1145] | 896 | // statistics before casting more samples
|
---|
[666] | 897 | cout << "compute new statistics ... ";
|
---|
[1570] | 898 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 899 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 900 |
|
---|
| 901 | mViewCellsTree->ExportStats(fName);
|
---|
| 902 | cout << "finished" << endl;
|
---|
| 903 | }
|
---|
[1570] | 904 |
|
---|
[744] | 905 | cout << "finished" << endl;
|
---|
[1178] | 906 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 907 |
|
---|
[660] | 908 | while (castSamples < numSamples)
|
---|
| 909 | {
|
---|
[664] | 910 | VssRayContainer evaluationSamples;
|
---|
[663] | 911 |
|
---|
[722] | 912 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 913 | /* dirSamples ?
|
---|
[664] | 914 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 915 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 916 | */
|
---|
[1004] | 917 | long startTime = GetTime();
|
---|
| 918 |
|
---|
[664] | 919 | //-- construction rays => we use uniform samples for this
|
---|
[1278] | 920 |
|
---|
[1004] | 921 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 922 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 923 |
|
---|
[664] | 924 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 925 |
|
---|
| 926 | castSamples += samplesPerPass;
|
---|
| 927 |
|
---|
[1004] | 928 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 929 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 930 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 931 |
|
---|
[1004] | 932 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 933 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 934 |
|
---|
| 935 | startTime = GetTime();
|
---|
| 936 |
|
---|
[664] | 937 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 938 |
|
---|
[1004] | 939 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 940 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 941 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 942 |
|
---|
[1004] | 943 | startTime = GetTime();
|
---|
[1444] | 944 | cout << "compute new statistics ... " << endl;
|
---|
| 945 |
|
---|
[1603] | 946 | ///////////////
|
---|
[801] | 947 | //-- propagate pvs or pvs size information
|
---|
[1586] | 948 |
|
---|
[752] | 949 | ObjectPvs pvs;
|
---|
| 950 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 951 |
|
---|
[1586] | 952 | ///////////
|
---|
[801] | 953 | //-- output stats
|
---|
[1570] | 954 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 955 | string fileName = string(statsPrefix) + string(str);
|
---|
[664] | 956 |
|
---|
[1679] | 957 | ExportStats(fileName);
|
---|
[664] | 958 |
|
---|
[1004] | 959 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 960 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1444] | 961 | Debug << "statistis compted in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 962 |
|
---|
| 963 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 964 | }
|
---|
[728] | 965 |
|
---|
[997] | 966 |
|
---|
[1570] | 967 | ////////////
|
---|
[997] | 968 | //-- histogram
|
---|
| 969 |
|
---|
[735] | 970 | bool useHisto;
|
---|
[997] | 971 | int histoStepSize;
|
---|
[693] | 972 |
|
---|
[1004] | 973 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 974 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 975 |
|
---|
[744] | 976 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 977 |
|
---|
| 978 |
|
---|
[735] | 979 | if (useHisto)
|
---|
[734] | 980 | {
|
---|
[735] | 981 | // evaluate view cells in a histogram
|
---|
| 982 | char s[64];
|
---|
| 983 |
|
---|
[997] | 984 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 985 | {
|
---|
[997] | 986 | string filename;
|
---|
[744] | 987 |
|
---|
[997] | 988 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 989 | #if 0
|
---|
[744] | 990 | //-- evaluate histogram for render cost
|
---|
| 991 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 992 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 993 |
|
---|
| 994 | EvalViewCellHistogram(filename, pass);
|
---|
| 995 |
|
---|
[997] | 996 | #endif
|
---|
[744] | 997 | //////////////////////////////////////////
|
---|
[752] | 998 | //-- evaluate histogram for pvs size
|
---|
[744] | 999 |
|
---|
| 1000 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1001 |
|
---|
| 1002 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1003 | filename = string(statsPrefix) + string(s);
|
---|
| 1004 |
|
---|
| 1005 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1006 | }
|
---|
[734] | 1007 | }
|
---|
[660] | 1008 | }
|
---|
| 1009 |
|
---|
[704] | 1010 |
|
---|
| 1011 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1012 | {
|
---|
[704] | 1013 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1014 | }
|
---|
[660] | 1015 |
|
---|
[703] | 1016 |
|
---|
[1145] | 1017 | /// Returns index of the best view cells of the neighborhood
|
---|
[704] | 1018 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 1019 | {
|
---|
[705] | 1020 | int bestViewCellIdx = 0;
|
---|
[703] | 1021 |
|
---|
[704] | 1022 | float mergeCost = Limits::Infinity;
|
---|
| 1023 | int i = 0;
|
---|
[703] | 1024 |
|
---|
[734] | 1025 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1026 |
|
---|
[734] | 1027 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1028 | {
|
---|
[734] | 1029 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1030 |
|
---|
| 1031 | if (mc < mergeCost)
|
---|
[704] | 1032 | {
|
---|
| 1033 | mergeCost = mc;
|
---|
| 1034 | bestViewCellIdx = i;
|
---|
[703] | 1035 | }
|
---|
[704] | 1036 | }
|
---|
[703] | 1037 |
|
---|
[704] | 1038 | return bestViewCellIdx;
|
---|
| 1039 | }
|
---|
[703] | 1040 |
|
---|
| 1041 |
|
---|
[728] | 1042 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1043 | {
|
---|
| 1044 | mMaxFilterSize = size;
|
---|
| 1045 | }
|
---|
| 1046 |
|
---|
| 1047 |
|
---|
| 1048 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1049 | {
|
---|
| 1050 | switch (mRenderCostEvaluationType)
|
---|
| 1051 | {
|
---|
| 1052 | case PER_OBJECT:
|
---|
[752] | 1053 | //cout << "perobject" << endl;
|
---|
| 1054 | return 1.0f;
|
---|
[728] | 1055 |
|
---|
| 1056 | case PER_TRIANGLE:
|
---|
[1145] | 1057 | {//cout << "pertriangle" << endl;
|
---|
[728] | 1058 | // HACK
|
---|
| 1059 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1060 |
|
---|
| 1061 | // HACK: assume meshes are triangles
|
---|
| 1062 | if (mi->GetMesh())
|
---|
| 1063 | {
|
---|
[1145] | 1064 | return (float)mi->GetMesh()->mFaces.size();
|
---|
[728] | 1065 | }
|
---|
| 1066 | }
|
---|
| 1067 | default:
|
---|
[752] | 1068 | cout << "default" << endl;
|
---|
| 1069 | return 1.0f;
|
---|
[728] | 1070 | }
|
---|
| 1071 |
|
---|
| 1072 | // should not come here
|
---|
[752] | 1073 | return 0.0f;
|
---|
[728] | 1074 | }
|
---|
| 1075 |
|
---|
| 1076 |
|
---|
[704] | 1077 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1078 | const ViewCellContainer &viewCells)
|
---|
| 1079 | {
|
---|
| 1080 | ViewCell *root = currentViewCell;
|
---|
| 1081 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1082 |
|
---|
[704] | 1083 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1084 |
|
---|
[704] | 1085 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1086 |
|
---|
| 1087 | /////////////////
|
---|
[704] | 1088 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1089 |
|
---|
[704] | 1090 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1091 | {
|
---|
[704] | 1092 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1093 |
|
---|
[704] | 1094 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1095 |
|
---|
[704] | 1096 | // remove from vector
|
---|
| 1097 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1098 | neighborhood.pop_back();
|
---|
[705] | 1099 |
|
---|
[704] | 1100 | if (!bestViewCell || !root)
|
---|
[1545] | 1101 | cout << "warning!!" << endl;
|
---|
[705] | 1102 |
|
---|
[704] | 1103 | // create new root of the hierarchy
|
---|
| 1104 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1105 | }
|
---|
| 1106 |
|
---|
[704] | 1107 | return root;
|
---|
[703] | 1108 | }
|
---|
| 1109 |
|
---|
[704] | 1110 |
|
---|
[713] | 1111 | struct SortableViewCellEntry {
|
---|
| 1112 |
|
---|
[1174] | 1113 | SortableViewCellEntry() {}
|
---|
| 1114 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1115 |
|
---|
[1174] | 1116 | float mValue;
|
---|
| 1117 | ViewCell *mViewCell;
|
---|
| 1118 |
|
---|
| 1119 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1120 | return a.mValue < b.mValue;
|
---|
| 1121 | }
|
---|
[713] | 1122 | };
|
---|
| 1123 |
|
---|
[1174] | 1124 |
|
---|
| 1125 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1126 | const ViewCellContainer &viewCells)
|
---|
[713] | 1127 | {
|
---|
| 1128 |
|
---|
| 1129 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1130 | int i, j;
|
---|
| 1131 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1132 | if (viewCells[i] != currentViewCell)
|
---|
| 1133 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1134 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1135 | viewCells[i]);
|
---|
| 1136 | }
|
---|
| 1137 | neighborhood.resize(j);
|
---|
| 1138 |
|
---|
| 1139 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1140 |
|
---|
| 1141 | ViewCell *root = currentViewCell;
|
---|
| 1142 |
|
---|
| 1143 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1144 |
|
---|
| 1145 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1146 | //-- use priority queue to merge leaf pairs
|
---|
| 1147 |
|
---|
| 1148 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1149 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1150 | {
|
---|
[713] | 1151 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1152 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1153 | // create new root of the hierarchy
|
---|
| 1154 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1155 | // set negative cost so that this view cell gets deleted
|
---|
| 1156 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1157 | }
|
---|
[713] | 1158 |
|
---|
| 1159 | return root;
|
---|
| 1160 | }
|
---|
| 1161 |
|
---|
| 1162 | void
|
---|
| 1163 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1164 | ) const
|
---|
| 1165 | {
|
---|
[1586] | 1166 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1167 | {
|
---|
| 1168 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1169 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1170 |
|
---|
| 1171 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1172 | DeleteLocalMergeTree(*it);
|
---|
| 1173 |
|
---|
| 1174 | vci->mChildren.clear();
|
---|
| 1175 |
|
---|
| 1176 | delete vci;
|
---|
[713] | 1177 | }
|
---|
| 1178 | }
|
---|
| 1179 |
|
---|
[1021] | 1180 |
|
---|
[564] | 1181 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1182 | int minPvsSize,
|
---|
[562] | 1183 | int maxPvsSize) const
|
---|
[547] | 1184 | {
|
---|
[569] | 1185 |
|
---|
[1168] | 1186 | if ((vc->GetPvs().CountObjectsInPvs() > maxPvsSize) ||
|
---|
| 1187 | (vc->GetPvs().CountObjectsInPvs() < minPvsSize))
|
---|
[564] | 1188 | {
|
---|
[710] | 1189 | return false;
|
---|
[561] | 1190 | }
|
---|
[570] | 1191 |
|
---|
[710] | 1192 | return true;
|
---|
[547] | 1193 | }
|
---|
| 1194 |
|
---|
| 1195 |
|
---|
[710] | 1196 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1197 | ViewCellContainer &viewCells) const
|
---|
| 1198 | {
|
---|
| 1199 | return 0;
|
---|
| 1200 | };
|
---|
| 1201 |
|
---|
[1021] | 1202 |
|
---|
[697] | 1203 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1204 | const float width) const
|
---|
| 1205 | {
|
---|
[746] | 1206 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1207 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1208 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1209 |
|
---|
| 1210 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1211 | }
|
---|
| 1212 |
|
---|
| 1213 |
|
---|
[904] | 1214 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1215 | PrVs &prvs,
|
---|
| 1216 | const float filterWidth)
|
---|
[697] | 1217 | {
|
---|
[1594] | 1218 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1219 |
|
---|
[1594] | 1220 | if (mMaxFilterSize < 1) {
|
---|
| 1221 | prvs.mViewCell = currentViewCell;
|
---|
| 1222 | return;
|
---|
| 1223 | }
|
---|
| 1224 |
|
---|
| 1225 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1226 |
|
---|
| 1227 | if (currentViewCell)
|
---|
[1545] | 1228 | {
|
---|
[1594] | 1229 | ViewCellContainer viewCells;
|
---|
| 1230 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1231 |
|
---|
| 1232 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1233 | prvs.mViewCell = root;
|
---|
| 1234 |
|
---|
[1545] | 1235 | }
|
---|
[1594] | 1236 | else
|
---|
[1545] | 1237 | {
|
---|
[1594] | 1238 | prvs.mViewCell = NULL;
|
---|
| 1239 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1240 | }
|
---|
[697] | 1241 | }
|
---|
| 1242 |
|
---|
| 1243 |
|
---|
[581] | 1244 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1245 | {
|
---|
[1002] | 1246 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1247 | }
|
---|
| 1248 |
|
---|
| 1249 |
|
---|
[564] | 1250 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1251 | int minPvs,
|
---|
[562] | 1252 | int maxPvs) const
|
---|
| 1253 | {
|
---|
| 1254 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1255 | }
|
---|
| 1256 |
|
---|
[577] | 1257 |
|
---|
[569] | 1258 | void
|
---|
| 1259 | ViewCellsManager::SetValidity(
|
---|
[570] | 1260 | int minPvsSize,
|
---|
[569] | 1261 | int maxPvsSize) const
|
---|
| 1262 | {
|
---|
[991] | 1263 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1264 |
|
---|
[991] | 1265 |
|
---|
| 1266 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1267 | {
|
---|
| 1268 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1269 | }
|
---|
[569] | 1270 | }
|
---|
[562] | 1271 |
|
---|
[569] | 1272 | void
|
---|
| 1273 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1274 | const float minValid,
|
---|
| 1275 | const float maxValid
|
---|
| 1276 | )
|
---|
| 1277 | {
|
---|
[997] | 1278 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1279 |
|
---|
[1151] | 1280 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1281 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1282 |
|
---|
[1151] | 1283 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1284 | {
|
---|
| 1285 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1286 | }
|
---|
[569] | 1287 | }
|
---|
| 1288 |
|
---|
[1148] | 1289 |
|
---|
[991] | 1290 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1291 | {
|
---|
[991] | 1292 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1293 | int valid = 0;
|
---|
| 1294 |
|
---|
| 1295 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1296 | {
|
---|
| 1297 | if ((*it)->GetValid())
|
---|
| 1298 | ++ valid;
|
---|
| 1299 | }
|
---|
| 1300 |
|
---|
| 1301 | return valid;
|
---|
[569] | 1302 | }
|
---|
| 1303 |
|
---|
[577] | 1304 |
|
---|
[1545] | 1305 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1306 | const bool extrudeBaseTriangles)
|
---|
[440] | 1307 | {
|
---|
[1545] | 1308 | /// we use predefined view cells from now on
|
---|
| 1309 | mUsePredefinedViewCells = true;
|
---|
[440] | 1310 | X3dParser parser;
|
---|
[1545] | 1311 |
|
---|
| 1312 | if (extrudeBaseTriangles)
|
---|
| 1313 | {
|
---|
| 1314 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1315 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1316 |
|
---|
| 1317 | if (!success)
|
---|
| 1318 | return false;
|
---|
[1545] | 1319 | }
|
---|
| 1320 | else
|
---|
| 1321 | {
|
---|
| 1322 | // hack: use standard mesh loading
|
---|
| 1323 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1324 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1325 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1326 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1327 |
|
---|
| 1328 | if (!success)
|
---|
[1545] | 1329 | {
|
---|
[1563] | 1330 | DEL_PTR(root);
|
---|
| 1331 | return false;
|
---|
| 1332 | }
|
---|
| 1333 |
|
---|
| 1334 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1335 |
|
---|
| 1336 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1337 | {
|
---|
| 1338 | Mesh *mesh;
|
---|
| 1339 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1340 | {
|
---|
[1563] | 1341 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1342 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1343 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1344 | }
|
---|
[1563] | 1345 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1346 | {
|
---|
| 1347 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1348 | mesh = mit->GetMesh();
|
---|
| 1349 | }
|
---|
| 1350 | mesh->ComputeBoundingBox();
|
---|
| 1351 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1352 | }
|
---|
[1563] | 1353 |
|
---|
[1545] | 1354 | DEL_PTR(root);
|
---|
| 1355 | }
|
---|
[503] | 1356 |
|
---|
[1563] | 1357 | // set view space box to bounding box of the view cells
|
---|
| 1358 | AxisAlignedBox3 bbox;
|
---|
| 1359 | bbox.Initialize();
|
---|
| 1360 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1361 |
|
---|
| 1362 | for (; it != it_end; ++ it)
|
---|
[1545] | 1363 | {
|
---|
[1563] | 1364 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1365 | }
|
---|
[503] | 1366 |
|
---|
[1563] | 1367 | SetViewSpaceBox(bbox);
|
---|
| 1368 | cout << "view space box: " << bbox << endl;
|
---|
| 1369 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1370 |
|
---|
| 1371 | return true;
|
---|
[440] | 1372 | }
|
---|
| 1373 |
|
---|
[485] | 1374 |
|
---|
[487] | 1375 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1376 | {
|
---|
[542] | 1377 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1378 | return true;
|
---|
| 1379 | }
|
---|
| 1380 |
|
---|
| 1381 |
|
---|
[557] | 1382 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1383 | {
|
---|
[610] | 1384 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1385 | }
|
---|
| 1386 |
|
---|
| 1387 |
|
---|
[490] | 1388 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1389 | {
|
---|
[1444] | 1390 | if (!ViewCellsConstructed())
|
---|
| 1391 | {
|
---|
| 1392 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1393 | }
|
---|
| 1394 | else
|
---|
| 1395 | {
|
---|
| 1396 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1397 | return false;
|
---|
[837] | 1398 |
|
---|
[1444] | 1399 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1400 |
|
---|
| 1401 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1402 | return false;
|
---|
| 1403 | }
|
---|
| 1404 |
|
---|
| 1405 | return true;
|
---|
[490] | 1406 | }
|
---|
| 1407 |
|
---|
[501] | 1408 |
|
---|
[1444] | 1409 | float ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1410 | const bool addRays,
|
---|
| 1411 | const bool storeViewCells)
|
---|
[440] | 1412 | {
|
---|
[1444] | 1413 | // view cells not yet constructed
|
---|
| 1414 | if (!ViewCellsConstructed())
|
---|
| 1415 | return 0.0f;
|
---|
| 1416 |
|
---|
| 1417 | float sum = 0.0f;
|
---|
| 1418 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1419 |
|
---|
| 1420 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1421 | {
|
---|
| 1422 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1423 | }
|
---|
[503] | 1424 |
|
---|
[1444] | 1425 | return sum;
|
---|
[440] | 1426 | }
|
---|
| 1427 |
|
---|
[485] | 1428 |
|
---|
[479] | 1429 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1430 | {
|
---|
[660] | 1431 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1432 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1433 |
|
---|
| 1434 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1435 | {
|
---|
[660] | 1436 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1437 | }
|
---|
[479] | 1438 | }
|
---|
| 1439 |
|
---|
[485] | 1440 |
|
---|
[580] | 1441 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1442 | float &expectedRenderCost,
|
---|
[580] | 1443 | float &deviation,
|
---|
| 1444 | float &variance,
|
---|
| 1445 | int &totalPvs,
|
---|
| 1446 | float &avgRenderCost)
|
---|
[579] | 1447 | {
|
---|
[1444] | 1448 | ////////////
|
---|
| 1449 | //-- compute expected value
|
---|
[579] | 1450 |
|
---|
| 1451 | totalRenderCost = 0;
|
---|
[580] | 1452 | totalPvs = 0;
|
---|
[579] | 1453 |
|
---|
[1444] | 1454 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1455 |
|
---|
[579] | 1456 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1457 | {
|
---|
| 1458 | ViewCell *vc = *it;
|
---|
[1168] | 1459 | totalRenderCost += vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
| 1460 | totalPvs += (int)vc->GetPvs().CountObjectsInPvs();
|
---|
[579] | 1461 | }
|
---|
| 1462 |
|
---|
[580] | 1463 | // normalize with view space box
|
---|
| 1464 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1465 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1466 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1467 |
|
---|
| 1468 |
|
---|
[1444] | 1469 | ///////////
|
---|
[580] | 1470 | //-- compute standard defiation
|
---|
[1444] | 1471 |
|
---|
[579] | 1472 | variance = 0;
|
---|
[580] | 1473 | deviation = 0;
|
---|
[579] | 1474 |
|
---|
| 1475 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1476 | {
|
---|
| 1477 | ViewCell *vc = *it;
|
---|
| 1478 |
|
---|
[1168] | 1479 | float renderCost = vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
[580] | 1480 | float dev;
|
---|
[579] | 1481 |
|
---|
[580] | 1482 | if (1)
|
---|
[1168] | 1483 | dev = fabs(avgRenderCost - (float)vc->GetPvs().CountObjectsInPvs());
|
---|
[580] | 1484 | else
|
---|
| 1485 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1486 |
|
---|
[580] | 1487 | deviation += dev;
|
---|
| 1488 | variance += dev * dev;
|
---|
[579] | 1489 | }
|
---|
[580] | 1490 |
|
---|
[579] | 1491 | variance /= (float)mViewCells.size();
|
---|
[580] | 1492 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1493 | }
|
---|
| 1494 |
|
---|
| 1495 |
|
---|
[478] | 1496 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1497 | {
|
---|
| 1498 | return viewCell->GetArea();
|
---|
| 1499 | }
|
---|
| 1500 |
|
---|
| 1501 |
|
---|
| 1502 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1503 | {
|
---|
| 1504 | return viewCell->GetVolume();
|
---|
| 1505 | }
|
---|
| 1506 |
|
---|
[485] | 1507 |
|
---|
[503] | 1508 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1509 | const float height) const
|
---|
| 1510 | {
|
---|
| 1511 | // one mesh per view cell
|
---|
[1001] | 1512 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1513 |
|
---|
[1545] | 1514 | ////////////
|
---|
[440] | 1515 | //-- construct prism
|
---|
| 1516 |
|
---|
[503] | 1517 | // bottom
|
---|
[440] | 1518 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1519 | // top
|
---|
| 1520 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1521 | // sides
|
---|
| 1522 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1523 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1524 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1525 |
|
---|
[1545] | 1526 |
|
---|
| 1527 | /////////////
|
---|
| 1528 | //-- extrude new vertices for top of prism
|
---|
| 1529 |
|
---|
[1586] | 1530 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1531 | Triangle3 topTri;
|
---|
[440] | 1532 |
|
---|
| 1533 | // add base vertices and calculate top vertices
|
---|
| 1534 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1535 | {
|
---|
[440] | 1536 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1537 | }
|
---|
[503] | 1538 |
|
---|
| 1539 | // add top vertices
|
---|
[440] | 1540 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1541 | {
|
---|
[440] | 1542 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1543 | }
|
---|
[503] | 1544 |
|
---|
[1545] | 1545 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1546 | mesh->ComputeBoundingBox();
|
---|
| 1547 |
|
---|
[440] | 1548 | return GenerateViewCell(mesh);
|
---|
| 1549 | }
|
---|
| 1550 |
|
---|
[485] | 1551 |
|
---|
[551] | 1552 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1553 | {
|
---|
| 1554 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1555 |
|
---|
| 1556 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1557 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1558 | {
|
---|
| 1559 | Finalize(*it, createMesh);
|
---|
| 1560 | }
|
---|
[555] | 1561 |
|
---|
[1584] | 1562 | mViewCellsTree->AssignRandomColors();
|
---|
| 1563 |
|
---|
[555] | 1564 | mTotalAreaValid = false;
|
---|
[551] | 1565 | }
|
---|
| 1566 |
|
---|
| 1567 |
|
---|
| 1568 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1569 | {
|
---|
| 1570 | // implemented in subclasses
|
---|
| 1571 | }
|
---|
| 1572 |
|
---|
[1001] | 1573 |
|
---|
[1168] | 1574 | /** fast way of merging 2 view cells.
|
---|
| 1575 | */
|
---|
[582] | 1576 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1577 | {
|
---|
[580] | 1578 | // generate parent view cell
|
---|
[752] | 1579 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1580 |
|
---|
[752] | 1581 | vc->GetPvs().Clear();
|
---|
[610] | 1582 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1583 |
|
---|
| 1584 | // merge pvs of right cell
|
---|
[610] | 1585 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1586 |
|
---|
[710] | 1587 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1588 | vc->mChildren.push_back(left);
|
---|
| 1589 | vc->mChildren.push_back(right);
|
---|
| 1590 |
|
---|
[752] | 1591 | // update pvs size
|
---|
[1168] | 1592 | UpdateScalarPvsSize(vc, vc->GetPvs().CountObjectsInPvs(), vc->GetPvs().GetSize());
|
---|
[752] | 1593 |
|
---|
[440] | 1594 | return vc;
|
---|
| 1595 | }
|
---|
| 1596 |
|
---|
[485] | 1597 |
|
---|
[582] | 1598 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1599 | {
|
---|
[752] | 1600 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1601 |
|
---|
| 1602 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1603 |
|
---|
| 1604 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1605 | {
|
---|
| 1606 | // merge pvs
|
---|
[610] | 1607 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1608 | vc->mChildren.push_back(*it);
|
---|
[582] | 1609 | }
|
---|
| 1610 |
|
---|
| 1611 | return vc;
|
---|
| 1612 | }
|
---|
| 1613 |
|
---|
| 1614 |
|
---|
[480] | 1615 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1616 | {
|
---|
| 1617 | mRenderer = renderer;
|
---|
| 1618 | }
|
---|
[441] | 1619 |
|
---|
[485] | 1620 |
|
---|
[580] | 1621 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1622 | {
|
---|
[580] | 1623 | return mViewCellsTree;
|
---|
[440] | 1624 | }
|
---|
| 1625 |
|
---|
| 1626 |
|
---|
| 1627 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1628 | {
|
---|
[444] | 1629 | mVisualizationSamples = visSamples;
|
---|
[440] | 1630 | }
|
---|
| 1631 |
|
---|
[485] | 1632 |
|
---|
[440] | 1633 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1634 | {
|
---|
| 1635 | mConstructionSamples = constructionSamples;
|
---|
| 1636 | }
|
---|
| 1637 |
|
---|
[485] | 1638 |
|
---|
[574] | 1639 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1640 | {
|
---|
| 1641 | mInitialSamples = initialSamples;
|
---|
| 1642 | }
|
---|
| 1643 |
|
---|
| 1644 |
|
---|
[440] | 1645 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1646 | {
|
---|
| 1647 | mPostProcessSamples = postProcessSamples;
|
---|
| 1648 | }
|
---|
| 1649 |
|
---|
[485] | 1650 |
|
---|
[440] | 1651 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1652 | {
|
---|
| 1653 | return mVisualizationSamples;
|
---|
| 1654 | }
|
---|
| 1655 |
|
---|
[485] | 1656 |
|
---|
[440] | 1657 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1658 | {
|
---|
| 1659 | return mConstructionSamples;
|
---|
| 1660 | }
|
---|
| 1661 |
|
---|
[485] | 1662 |
|
---|
[440] | 1663 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1664 | {
|
---|
| 1665 | return mPostProcessSamples;
|
---|
| 1666 | }
|
---|
| 1667 |
|
---|
[485] | 1668 |
|
---|
[719] | 1669 | void ViewCellsManager::UpdatePvs()
|
---|
| 1670 | {
|
---|
[720] | 1671 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1672 | return;
|
---|
| 1673 |
|
---|
| 1674 | mViewCellPvsIsUpdated = true;
|
---|
| 1675 |
|
---|
| 1676 | ViewCellContainer leaves;
|
---|
| 1677 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1678 |
|
---|
| 1679 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1680 |
|
---|
| 1681 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1682 | {
|
---|
| 1683 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1684 | }
|
---|
| 1685 | }
|
---|
| 1686 |
|
---|
| 1687 |
|
---|
[485] | 1688 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1689 | {
|
---|
[1199] | 1690 | // update pvs of view cells tree if necessary
|
---|
| 1691 | UpdatePvs();
|
---|
| 1692 |
|
---|
| 1693 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1694 |
|
---|
| 1695 | stat.viewcells = 0;
|
---|
| 1696 | stat.minPvs = 100000000;
|
---|
| 1697 | stat.maxPvs = 0;
|
---|
| 1698 | stat.avgPvs = 0.0f;
|
---|
| 1699 |
|
---|
| 1700 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1701 | {
|
---|
[1199] | 1702 | ViewCell *viewcell = *it;
|
---|
[1121] | 1703 |
|
---|
[1199] | 1704 | // bool mCountKdPvs = false;
|
---|
| 1705 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
[1121] | 1706 |
|
---|
| 1707 |
|
---|
[1199] | 1708 | if (pvsSize < stat.minPvs)
|
---|
| 1709 | stat.minPvs = pvsSize;
|
---|
| 1710 | if (pvsSize > stat.maxPvs)
|
---|
| 1711 | stat.maxPvs = pvsSize;
|
---|
| 1712 |
|
---|
| 1713 | stat.avgPvs += pvsSize;
|
---|
| 1714 |
|
---|
| 1715 | ++ stat.viewcells;
|
---|
[719] | 1716 | }
|
---|
[1199] | 1717 |
|
---|
| 1718 | if (stat.viewcells)
|
---|
| 1719 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1720 | }
|
---|
| 1721 |
|
---|
[485] | 1722 |
|
---|
[480] | 1723 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1724 | {
|
---|
| 1725 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1726 | PvsStatistics pvsStat;
|
---|
| 1727 | GetPvsStatistics(pvsStat);
|
---|
| 1728 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1729 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1730 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1731 | }
|
---|
| 1732 |
|
---|
[485] | 1733 |
|
---|
[532] | 1734 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1735 | {
|
---|
| 1736 | return 0;
|
---|
| 1737 | }
|
---|
| 1738 |
|
---|
[547] | 1739 |
|
---|
[468] | 1740 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1741 | {
|
---|
| 1742 | return mViewCells;
|
---|
| 1743 | }
|
---|
| 1744 |
|
---|
[485] | 1745 |
|
---|
[487] | 1746 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1747 | {
|
---|
[542] | 1748 | mViewSpaceBox = box;
|
---|
[1074] | 1749 |
|
---|
[1027] | 1750 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1751 | CreateClipPlane();
|
---|
[1027] | 1752 | // the total area of the view space has changed
|
---|
[577] | 1753 | mTotalAreaValid = false;
|
---|
[487] | 1754 | }
|
---|
| 1755 |
|
---|
| 1756 |
|
---|
[660] | 1757 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1758 | {
|
---|
| 1759 | int axis = 0;
|
---|
[667] | 1760 | float pos;
|
---|
[1418] | 1761 | bool orientation;
|
---|
| 1762 | Vector3 absPos;
|
---|
[591] | 1763 |
|
---|
[1004] | 1764 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1765 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1766 |
|
---|
[1418] | 1767 | if (axis < 0)
|
---|
| 1768 | {
|
---|
| 1769 | axis = -axis;
|
---|
| 1770 | orientation = false;
|
---|
| 1771 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 1772 | }
|
---|
| 1773 | else
|
---|
| 1774 | {
|
---|
| 1775 | orientation = true;
|
---|
| 1776 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1777 | }
|
---|
| 1778 |
|
---|
[1416] | 1779 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 1780 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 1781 | }
|
---|
| 1782 |
|
---|
| 1783 |
|
---|
[519] | 1784 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1785 | {
|
---|
[542] | 1786 | return mViewSpaceBox;
|
---|
[519] | 1787 | }
|
---|
| 1788 |
|
---|
| 1789 |
|
---|
[480] | 1790 | void ViewCellsManager::ResetViewCells()
|
---|
| 1791 | {
|
---|
[720] | 1792 | // recollect view cells
|
---|
[480] | 1793 | mViewCells.clear();
|
---|
| 1794 | CollectViewCells();
|
---|
[590] | 1795 |
|
---|
[720] | 1796 | // stats are computed once more
|
---|
[480] | 1797 | EvaluateViewCellsStats();
|
---|
[590] | 1798 |
|
---|
[520] | 1799 | // has to be recomputed
|
---|
[480] | 1800 | mTotalAreaValid = false;
|
---|
| 1801 | }
|
---|
| 1802 |
|
---|
[485] | 1803 |
|
---|
[547] | 1804 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1805 | {
|
---|
| 1806 | return mMaxPvsSize;
|
---|
| 1807 | }
|
---|
| 1808 |
|
---|
[590] | 1809 |
|
---|
[563] | 1810 | void
|
---|
| 1811 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1812 | {
|
---|
| 1813 | if (!ViewCellsConstructed())
|
---|
| 1814 | return;
|
---|
[564] | 1815 |
|
---|
[563] | 1816 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1817 |
|
---|
[563] | 1818 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1819 | AddSampleContributions(*(*it));
|
---|
| 1820 | }
|
---|
| 1821 | }
|
---|
[547] | 1822 |
|
---|
[581] | 1823 |
|
---|
[562] | 1824 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1825 | {
|
---|
| 1826 | return mMinPvsSize;
|
---|
| 1827 | }
|
---|
| 1828 |
|
---|
| 1829 |
|
---|
| 1830 |
|
---|
[561] | 1831 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1832 | {
|
---|
| 1833 | return mMaxPvsRatio;
|
---|
| 1834 | }
|
---|
| 1835 |
|
---|
| 1836 |
|
---|
[563] | 1837 | void
|
---|
| 1838 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1839 | {
|
---|
[563] | 1840 | // assumes viewcells have been stored...
|
---|
| 1841 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1842 | ViewCellContainer::const_iterator it;
|
---|
[1594] | 1843 |
|
---|
| 1844 | if (!ray.mTerminationObject)
|
---|
| 1845 | return;
|
---|
| 1846 |
|
---|
| 1847 | #if USE_KD_PVS
|
---|
| 1848 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 1849 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 1850 | Intersectable *obj =
|
---|
| 1851 | GetPreprocessor()->mKdTree->
|
---|
| 1852 | GetOrCreateKdIntersectable(node);
|
---|
| 1853 | #else
|
---|
| 1854 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 1855 | #endif
|
---|
| 1856 |
|
---|
[563] | 1857 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1858 | ViewCell *viewcell = *it;
|
---|
[569] | 1859 | if (viewcell->GetValid()) {
|
---|
| 1860 | // if ray not outside of view space
|
---|
[1594] | 1861 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[569] | 1862 | }
|
---|
[563] | 1863 | }
|
---|
| 1864 | }
|
---|
[503] | 1865 |
|
---|
[574] | 1866 |
|
---|
[1159] | 1867 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 1868 | const bool addRays,
|
---|
| 1869 | const bool storeViewCells)
|
---|
[563] | 1870 | {
|
---|
[570] | 1871 | ViewCellContainer viewcells;
|
---|
[564] | 1872 |
|
---|
[570] | 1873 | ray.mPvsContribution = 0;
|
---|
| 1874 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1875 |
|
---|
[570] | 1876 | static Ray hray;
|
---|
[564] | 1877 | hray.Init(ray);
|
---|
| 1878 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1879 | //Ray hray(ray);
|
---|
| 1880 |
|
---|
| 1881 | float tmin = 0, tmax = 1.0;
|
---|
| 1882 |
|
---|
| 1883 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1884 | return 0;
|
---|
[564] | 1885 |
|
---|
| 1886 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1887 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1888 |
|
---|
[1291] | 1889 | ViewCell::NewMail();
|
---|
| 1890 |
|
---|
[1006] | 1891 | // traverse the view space subdivision
|
---|
[564] | 1892 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1893 |
|
---|
[574] | 1894 | if (storeViewCells)
|
---|
[1155] | 1895 | { // copy viewcells memory efficiently
|
---|
[570] | 1896 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1897 | ray.mViewCells = viewcells;
|
---|
| 1898 | }
|
---|
[564] | 1899 |
|
---|
[1594] | 1900 | #if USE_KD_PVS
|
---|
| 1901 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 1902 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 1903 | Intersectable *obj =
|
---|
| 1904 | GetPreprocessor()->mKdTree->
|
---|
| 1905 | GetOrCreateKdIntersectable(node);
|
---|
| 1906 | #else
|
---|
| 1907 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 1908 | #endif
|
---|
| 1909 |
|
---|
| 1910 |
|
---|
[570] | 1911 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[1594] | 1912 |
|
---|
[664] | 1913 | for (; it != viewcells.end(); ++ it)
|
---|
| 1914 | {
|
---|
| 1915 | ViewCell *viewcell = *it;
|
---|
[1522] | 1916 |
|
---|
[1528] | 1917 | if (viewcell->GetValid()) // tests if view cell is in valid view space
|
---|
[664] | 1918 | {
|
---|
| 1919 | float contribution;
|
---|
[1291] | 1920 |
|
---|
| 1921 | if (ray.mTerminationObject)
|
---|
[1649] | 1922 | {
|
---|
| 1923 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 1924 | ray.mPdf,
|
---|
| 1925 | contribution))
|
---|
[1582] | 1926 | {
|
---|
[1649] | 1927 | ++ ray.mPvsContribution;
|
---|
| 1928 | ray.mRelativePvsContribution += contribution;
|
---|
[1582] | 1929 | }
|
---|
[664] | 1930 | }
|
---|
[1291] | 1931 |
|
---|
| 1932 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1582] | 1933 |
|
---|
[840] | 1934 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1935 | // made in one direction!!!
|
---|
| 1936 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1582] | 1937 |
|
---|
[666] | 1938 | if (ray.mOriginObject &&
|
---|
| 1939 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1940 | ray.mPdf,
|
---|
| 1941 | contribution))
|
---|
[1582] | 1942 | {
|
---|
[666] | 1943 | ++ ray.mPvsContribution;
|
---|
[1582] | 1944 | ray.mRelativePvsContribution += contribution;
|
---|
| 1945 | }
|
---|
[718] | 1946 | #endif
|
---|
[664] | 1947 | }
|
---|
[569] | 1948 | }
|
---|
[564] | 1949 |
|
---|
[1528] | 1950 | // if true, the sampled entities are stored in the pvs
|
---|
[664] | 1951 | if (addRays)
|
---|
| 1952 | {
|
---|
| 1953 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1954 | {
|
---|
| 1955 | ViewCell *viewcell = *it;
|
---|
| 1956 |
|
---|
[706] | 1957 | if (viewcell->GetValid())
|
---|
[664] | 1958 | {
|
---|
[1486] | 1959 | // if view point is valid, add new object to the pvs
|
---|
[1155] | 1960 | if (ray.mTerminationObject)
|
---|
[1545] | 1961 | {
|
---|
[1594] | 1962 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[1159] | 1963 | }
|
---|
[1166] | 1964 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 1965 | if (ray.mOriginObject)
|
---|
[1159] | 1966 | {
|
---|
[666] | 1967 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 1968 | }
|
---|
[718] | 1969 | #endif
|
---|
[664] | 1970 | }
|
---|
| 1971 | }
|
---|
[563] | 1972 | }
|
---|
[570] | 1973 |
|
---|
| 1974 | return ray.mRelativePvsContribution;
|
---|
[468] | 1975 | }
|
---|
| 1976 |
|
---|
| 1977 |
|
---|
[469] | 1978 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1979 | const int maxSize,
|
---|
[503] | 1980 | VssRayContainer &usedRays,
|
---|
[485] | 1981 | VssRayContainer *savedRays) const
|
---|
[469] | 1982 | {
|
---|
[485] | 1983 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1984 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1985 |
|
---|
[485] | 1986 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1987 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1988 | {
|
---|
[473] | 1989 | if (Random(1.0f) < prop)
|
---|
[485] | 1990 | usedRays.push_back(*it);
|
---|
| 1991 | else if (savedRays)
|
---|
| 1992 | savedRays->push_back(*it);
|
---|
[469] | 1993 | }
|
---|
| 1994 | }
|
---|
| 1995 |
|
---|
[477] | 1996 |
|
---|
[728] | 1997 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1998 | {
|
---|
[1145] | 1999 | return (float)mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 2000 | }
|
---|
| 2001 |
|
---|
| 2002 |
|
---|
[477] | 2003 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 2004 | {
|
---|
| 2005 | // if already computed
|
---|
| 2006 | if (mTotalAreaValid)
|
---|
[728] | 2007 | {
|
---|
[470] | 2008 | return mTotalArea;
|
---|
[728] | 2009 | }
|
---|
[470] | 2010 |
|
---|
| 2011 | mTotalArea = 0;
|
---|
| 2012 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2013 |
|
---|
| 2014 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 2015 | {
|
---|
| 2016 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2017 | mTotalArea += GetArea(*it);
|
---|
[480] | 2018 | }
|
---|
| 2019 |
|
---|
[470] | 2020 | mTotalAreaValid = true;
|
---|
| 2021 |
|
---|
| 2022 | return mTotalArea;
|
---|
| 2023 | }
|
---|
| 2024 |
|
---|
[482] | 2025 |
|
---|
[475] | 2026 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2027 | {
|
---|
[660] | 2028 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2029 | }
|
---|
| 2030 |
|
---|
[477] | 2031 |
|
---|
[508] | 2032 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2033 | {
|
---|
[651] | 2034 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2035 | {
|
---|
[651] | 2036 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2037 | }
|
---|
| 2038 | else // no view cells tree, handle view cells "myself"
|
---|
| 2039 | {
|
---|
[1551] | 2040 | int i = 0;
|
---|
| 2041 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2042 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2043 | {
|
---|
[1557] | 2044 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2045 | {
|
---|
[1551] | 2046 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2047 | }
|
---|
[1284] | 2048 | }
|
---|
| 2049 | }
|
---|
[508] | 2050 | }
|
---|
| 2051 |
|
---|
[1416] | 2052 |
|
---|
| 2053 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2054 | const AxisAlignedBox3 *sceneBox,
|
---|
[1571] | 2055 | const AxisAlignedPlane *clipPlane,
|
---|
| 2056 | const bool colorCode
|
---|
[1416] | 2057 | ) const
|
---|
[508] | 2058 | {
|
---|
[482] | 2059 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2060 |
|
---|
| 2061 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2062 | {
|
---|
[574] | 2063 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2064 | {
|
---|
[1571] | 2065 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2066 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2067 | }
|
---|
[482] | 2068 | }
|
---|
| 2069 | }
|
---|
| 2070 |
|
---|
| 2071 |
|
---|
[517] | 2072 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2073 | {
|
---|
| 2074 | // convert to meshes
|
---|
| 2075 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2076 |
|
---|
| 2077 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2078 | {
|
---|
[517] | 2079 | if (!(*it)->GetMesh())
|
---|
[1001] | 2080 | {
|
---|
[517] | 2081 | CreateMesh(*it);
|
---|
[1001] | 2082 | }
|
---|
[503] | 2083 | }
|
---|
| 2084 | }
|
---|
| 2085 |
|
---|
[508] | 2086 |
|
---|
[944] | 2087 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2088 | const bool exportPvs,
|
---|
| 2089 | const ObjectContainer &objects)
|
---|
[564] | 2090 | {
|
---|
[508] | 2091 | return false;
|
---|
| 2092 | }
|
---|
| 2093 |
|
---|
| 2094 |
|
---|
[610] | 2095 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2096 | {
|
---|
[610] | 2097 | mNumActiveViewCells = n;
|
---|
| 2098 | mViewCells.clear();
|
---|
[1545] | 2099 | // implemented in subclasses
|
---|
[610] | 2100 | CollectViewCells();
|
---|
| 2101 | }
|
---|
[508] | 2102 |
|
---|
| 2103 |
|
---|
[660] | 2104 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2105 | {
|
---|
[882] | 2106 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2107 | // active view cells
|
---|
[660] | 2108 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2109 |
|
---|
[660] | 2110 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2111 | {
|
---|
[881] | 2112 | ViewCellContainer leaves;
|
---|
| 2113 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2114 |
|
---|
| 2115 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2116 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2117 | {
|
---|
| 2118 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2119 | }
|
---|
[660] | 2120 | }
|
---|
| 2121 | }
|
---|
[508] | 2122 |
|
---|
[840] | 2123 |
|
---|
| 2124 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2125 | {
|
---|
| 2126 | return mMaxFilterSize;
|
---|
| 2127 | }
|
---|
| 2128 |
|
---|
[1001] | 2129 |
|
---|
[840] | 2130 | static const bool USE_ASCII = true;
|
---|
| 2131 |
|
---|
[1001] | 2132 |
|
---|
[840] | 2133 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2134 | const ObjectContainer &objects) const
|
---|
| 2135 | {
|
---|
| 2136 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2137 |
|
---|
| 2138 | if (USE_ASCII)
|
---|
| 2139 | {
|
---|
| 2140 | ofstream boxesOut(filename.c_str());
|
---|
| 2141 | if (!boxesOut.is_open())
|
---|
| 2142 | return false;
|
---|
| 2143 |
|
---|
| 2144 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2145 | {
|
---|
| 2146 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2147 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2148 |
|
---|
| 2149 | boxesOut << mi->GetId() << " "
|
---|
| 2150 | << box.Min().x << " "
|
---|
| 2151 | << box.Min().y << " "
|
---|
| 2152 | << box.Min().z << " "
|
---|
| 2153 | << box.Max().x << " "
|
---|
| 2154 | << box.Max().y << " "
|
---|
| 2155 | << box.Max().z << endl;
|
---|
| 2156 | }
|
---|
| 2157 |
|
---|
| 2158 | boxesOut.close();
|
---|
| 2159 | }
|
---|
| 2160 | else
|
---|
| 2161 | {
|
---|
| 2162 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2163 |
|
---|
| 2164 | if (!boxesOut.is_open())
|
---|
| 2165 | return false;
|
---|
| 2166 |
|
---|
| 2167 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2168 | {
|
---|
| 2169 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2170 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2171 | Vector3 bmin = box.Min();
|
---|
| 2172 | Vector3 bmax = box.Max();
|
---|
[850] | 2173 | int id = mi->GetId();
|
---|
[840] | 2174 |
|
---|
[850] | 2175 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2176 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2177 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2178 | }
|
---|
| 2179 |
|
---|
| 2180 | boxesOut.close();
|
---|
| 2181 | }
|
---|
| 2182 |
|
---|
| 2183 | return true;
|
---|
| 2184 | }
|
---|
| 2185 |
|
---|
| 2186 |
|
---|
[850] | 2187 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2188 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2189 | {
|
---|
[850] | 2190 | Vector3 bmin, bmax;
|
---|
| 2191 | int id;
|
---|
[840] | 2192 |
|
---|
[850] | 2193 | if (USE_ASCII)
|
---|
[840] | 2194 | {
|
---|
[850] | 2195 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2196 |
|
---|
[850] | 2197 | if (!boxesIn.is_open())
|
---|
[840] | 2198 | {
|
---|
[850] | 2199 | cout << "failed to open file " << filename << endl;
|
---|
| 2200 | return false;
|
---|
[840] | 2201 | }
|
---|
[850] | 2202 |
|
---|
| 2203 | string buf;
|
---|
| 2204 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2205 | {
|
---|
[850] | 2206 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2207 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2208 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2209 |
|
---|
| 2210 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2211 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2212 | // HACK: set bounding box to new box
|
---|
| 2213 | //mi->mBox = box;
|
---|
| 2214 |
|
---|
| 2215 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2216 | }
|
---|
| 2217 |
|
---|
[850] | 2218 | boxesIn.close();
|
---|
[840] | 2219 | }
|
---|
[850] | 2220 | else
|
---|
[840] | 2221 | {
|
---|
[850] | 2222 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2223 |
|
---|
[850] | 2224 | if (!boxesIn.is_open())
|
---|
| 2225 | return false;
|
---|
| 2226 |
|
---|
| 2227 | while (1)
|
---|
[840] | 2228 | {
|
---|
[850] | 2229 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2230 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2231 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2232 |
|
---|
| 2233 | if (boxesIn.eof())
|
---|
| 2234 | break;
|
---|
| 2235 |
|
---|
| 2236 |
|
---|
| 2237 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2238 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2239 |
|
---|
| 2240 | // HACK: set bounding box to new box
|
---|
| 2241 | //mi->mBox = box;
|
---|
| 2242 | //boxes.push_back(mi);
|
---|
| 2243 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2244 | }
|
---|
| 2245 |
|
---|
[850] | 2246 | boxesIn.close();
|
---|
[840] | 2247 | }
|
---|
| 2248 |
|
---|
| 2249 | return true;
|
---|
[850] | 2250 | }
|
---|
[840] | 2251 |
|
---|
[931] | 2252 |
|
---|
| 2253 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2254 | {
|
---|
| 2255 | return mFilterWidth;
|
---|
| 2256 | }
|
---|
| 2257 |
|
---|
| 2258 |
|
---|
| 2259 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2260 | {
|
---|
| 2261 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2262 | }
|
---|
| 2263 |
|
---|
| 2264 |
|
---|
[1168] | 2265 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
| 2266 | const int pvsSize,
|
---|
| 2267 | const int entriesInPvs) const
|
---|
[1002] | 2268 | {
|
---|
| 2269 | vc->mPvsSize = pvsSize;
|
---|
[1160] | 2270 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2271 |
|
---|
[1002] | 2272 | vc->mPvsSizeValid = true;
|
---|
| 2273 | }
|
---|
| 2274 |
|
---|
| 2275 |
|
---|
[1021] | 2276 | void
|
---|
| 2277 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2278 | KdTree *kdTree,
|
---|
| 2279 | const float viewSpaceFilterSize,
|
---|
| 2280 | const float spatialFilterSize,
|
---|
| 2281 | ObjectPvs &pvs
|
---|
| 2282 | )
|
---|
| 2283 | {
|
---|
| 2284 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2285 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2286 | // in the pvs
|
---|
| 2287 |
|
---|
| 2288 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2289 | // and compute the pvs union
|
---|
| 2290 |
|
---|
| 2291 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2292 | // Vector3 center = m->mBox.Center();
|
---|
[1679] | 2293 |
|
---|
| 2294 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2295 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2296 | if (!ViewCellsConstructed())
|
---|
| 2297 | return;
|
---|
| 2298 |
|
---|
[1679] | 2299 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
[1021] | 2300 |
|
---|
[1679] | 2301 | const bool usePrVS = false;
|
---|
[1021] | 2302 |
|
---|
[1679] | 2303 | if (!usePrVS) {
|
---|
| 2304 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2305 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2306 |
|
---|
[1679] | 2307 | ViewCellContainer viewCells;
|
---|
| 2308 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2309 |
|
---|
| 2310 | // cout<<"box="<<box<<endl;
|
---|
| 2311 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2312 |
|
---|
| 2313 | int i;
|
---|
| 2314 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2315 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2316 | pvs.Merge((*it)->GetPvs());
|
---|
| 2317 | }
|
---|
| 2318 | } else {
|
---|
| 2319 | PrVs prvs;
|
---|
| 2320 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2321 |
|
---|
| 2322 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2323 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2324 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2325 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2326 | }
|
---|
| 2327 | } else
|
---|
| 2328 | pvs = viewCell->GetPvs();
|
---|
| 2329 |
|
---|
| 2330 | if (spatialFilterSize >=0.0f)
|
---|
| 2331 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2332 |
|
---|
[1021] | 2333 | }
|
---|
| 2334 |
|
---|
| 2335 |
|
---|
| 2336 |
|
---|
| 2337 | void
|
---|
| 2338 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2339 | const float relViewSpaceFilterSize,
|
---|
| 2340 | const float relSpatialFilterSize
|
---|
| 2341 | )
|
---|
| 2342 | {
|
---|
| 2343 |
|
---|
| 2344 | if (!ViewCellsConstructed())
|
---|
| 2345 | return;
|
---|
| 2346 |
|
---|
[1679] | 2347 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1021] | 2348 |
|
---|
[1679] | 2349 | ObjectPvs *newPvs;
|
---|
| 2350 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
[1021] | 2351 |
|
---|
[1679] | 2352 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2353 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
[1021] | 2354 |
|
---|
[1679] | 2355 | int i;
|
---|
| 2356 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2357 | ApplyFilter(*it,
|
---|
| 2358 | kdTree,
|
---|
| 2359 | viewSpaceFilterSize,
|
---|
| 2360 | spatialFilterSize,
|
---|
| 2361 | newPvs[i]
|
---|
| 2362 | );
|
---|
| 2363 | }
|
---|
[1021] | 2364 |
|
---|
[1679] | 2365 | // now replace all pvss
|
---|
| 2366 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1021] | 2367 |
|
---|
[1679] | 2368 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2369 | pvs.Clear();
|
---|
| 2370 | pvs = newPvs[i];
|
---|
| 2371 | newPvs[i].Clear();
|
---|
| 2372 | }
|
---|
[1021] | 2373 |
|
---|
[1679] | 2374 | delete [] newPvs;
|
---|
| 2375 | }
|
---|
[1021] | 2376 |
|
---|
[1679] | 2377 |
|
---|
[1021] | 2378 | void
|
---|
| 2379 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2380 | KdTree *kdTree,
|
---|
| 2381 | const float spatialFilterSize,
|
---|
| 2382 | ObjectPvs &pvs
|
---|
| 2383 | )
|
---|
| 2384 | {
|
---|
[1679] | 2385 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2386 | // extended boxes of visible objects
|
---|
| 2387 | Intersectable::NewMail();
|
---|
| 2388 |
|
---|
| 2389 | ObjectPvsMap::const_iterator oi;
|
---|
| 2390 |
|
---|
[1189] | 2391 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi)
|
---|
| 2392 | {
|
---|
| 2393 | Intersectable *object = (*oi).first;
|
---|
| 2394 | object->Mail();
|
---|
[1021] | 2395 | }
|
---|
| 2396 |
|
---|
| 2397 | ObjectPvs nPvs;
|
---|
[1189] | 2398 | int nPvsSize = 0;
|
---|
[1021] | 2399 | // now go through the pvs again
|
---|
| 2400 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2401 | Intersectable *object = (*oi).first;
|
---|
| 2402 |
|
---|
| 2403 | // Vector3 center = object->GetBox().Center();
|
---|
| 2404 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2405 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2406 |
|
---|
| 2407 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2408 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2409 |
|
---|
| 2410 | ObjectContainer objects;
|
---|
| 2411 |
|
---|
| 2412 | // $$ warning collect objects takes only unmailed ones!
|
---|
[1586] | 2413 | kdTree->CollectObjects(box, objects);
|
---|
[1021] | 2414 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2415 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
[1586] | 2416 | for (; noi != objects.end(); ++ noi)
|
---|
| 2417 | {
|
---|
| 2418 | Intersectable *o = *noi;
|
---|
| 2419 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2420 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2421 | nPvsSize ++;
|
---|
[1021] | 2422 | }
|
---|
| 2423 | }
|
---|
| 2424 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2425 | pvs.Merge(nPvs);
|
---|
| 2426 | }
|
---|
| 2427 |
|
---|
| 2428 |
|
---|
[1571] | 2429 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2430 | ViewCell *vc,
|
---|
| 2431 | bool colorCode) const
|
---|
[1021] | 2432 | {
|
---|
| 2433 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2434 |
|
---|
| 2435 | float importance = 0;
|
---|
| 2436 | static Material m;
|
---|
| 2437 |
|
---|
| 2438 | switch (mColorCode)
|
---|
| 2439 | {
|
---|
| 2440 | case 0: // Random
|
---|
| 2441 | {
|
---|
| 2442 | if (vcValid)
|
---|
| 2443 | {
|
---|
| 2444 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2445 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2446 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2447 | }
|
---|
| 2448 | else
|
---|
| 2449 | {
|
---|
| 2450 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2451 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2452 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2453 | }
|
---|
| 2454 |
|
---|
| 2455 | exporter->SetForcedMaterial(m);
|
---|
| 2456 | return;
|
---|
| 2457 | }
|
---|
| 2458 |
|
---|
| 2459 | case 1: // pvs
|
---|
| 2460 | {
|
---|
| 2461 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2462 | {
|
---|
| 2463 | importance =
|
---|
[1142] | 2464 | (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
[1121] | 2465 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2466 | }
|
---|
[1021] | 2467 | }
|
---|
| 2468 | break;
|
---|
| 2469 | case 2: // merges
|
---|
| 2470 | {
|
---|
| 2471 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2472 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2473 | }
|
---|
| 2474 | break;
|
---|
| 2475 | #if 0
|
---|
| 2476 | case 3: // merge tree differene
|
---|
| 2477 | {
|
---|
| 2478 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2479 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2480 |
|
---|
| 2481 | }
|
---|
| 2482 | break;
|
---|
| 2483 | #endif
|
---|
| 2484 | default:
|
---|
| 2485 | break;
|
---|
| 2486 | }
|
---|
| 2487 |
|
---|
| 2488 | // special color code for invalid view cells
|
---|
| 2489 | m.mDiffuseColor.r = importance;
|
---|
| 2490 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2491 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2492 |
|
---|
| 2493 | //Debug << "importance: " << importance << endl;
|
---|
| 2494 | exporter->SetForcedMaterial(m);
|
---|
| 2495 | }
|
---|
| 2496 |
|
---|
| 2497 |
|
---|
[1022] | 2498 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2499 | vector<MergeCandidate> &candidates)
|
---|
| 2500 | {
|
---|
| 2501 | // implemented in subclasses
|
---|
| 2502 | }
|
---|
| 2503 |
|
---|
[1047] | 2504 |
|
---|
[1608] | 2505 | void
|
---|
| 2506 | ViewCellsManager::UpdatePvsForEvaluation()
|
---|
| 2507 | {
|
---|
| 2508 | ObjectPvs objPvs;
|
---|
| 2509 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
| 2510 | }
|
---|
| 2511 |
|
---|
[1168] | 2512 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2513 | {
|
---|
| 2514 | // terminate traversal
|
---|
| 2515 | if (root->IsLeaf())
|
---|
| 2516 | {
|
---|
| 2517 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2518 | pvs = root->GetPvs();
|
---|
| 2519 | UpdateScalarPvsSize(root, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2520 |
|
---|
| 2521 | return;
|
---|
| 2522 | }
|
---|
| 2523 |
|
---|
[1586] | 2524 | ////////////////
|
---|
| 2525 | //-- interior node => propagate pvs up the tree
|
---|
| 2526 |
|
---|
[1168] | 2527 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 2528 |
|
---|
| 2529 | // reset interior pvs
|
---|
[1168] | 2530 | interior->GetPvs().Clear();
|
---|
[1606] | 2531 | // reset recursive pvs
|
---|
[1168] | 2532 | pvs.Clear();
|
---|
| 2533 | vector<ObjectPvs> pvsList;
|
---|
| 2534 |
|
---|
| 2535 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 2536 |
|
---|
| 2537 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 2538 | {
|
---|
| 2539 | ObjectPvs objPvs;
|
---|
| 2540 |
|
---|
[1586] | 2541 | //////////////////
|
---|
[1168] | 2542 | //-- recursivly compute child pvss
|
---|
[1586] | 2543 |
|
---|
[1168] | 2544 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 2545 |
|
---|
| 2546 | // store pvs in vector
|
---|
| 2547 | pvsList.push_back(objPvs);
|
---|
| 2548 | }
|
---|
| 2549 |
|
---|
| 2550 | #if 1
|
---|
| 2551 | Intersectable::NewMail();
|
---|
| 2552 |
|
---|
| 2553 | //-- faster way of computing pvs:
|
---|
[1586] | 2554 | //-- construct merged pvs by adding
|
---|
| 2555 | //-- and only those of the next pvs which were not mailed.
|
---|
| 2556 | //-- note: sumpdf is not correct!!
|
---|
| 2557 |
|
---|
[1168] | 2558 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2559 |
|
---|
| 2560 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2561 | {
|
---|
| 2562 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2563 |
|
---|
| 2564 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2565 | {
|
---|
| 2566 | Intersectable *intersect = (*pit).first;
|
---|
| 2567 |
|
---|
| 2568 | if (!intersect->Mailed())
|
---|
| 2569 | {
|
---|
| 2570 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2571 | intersect->Mail();
|
---|
| 2572 | }
|
---|
| 2573 | }
|
---|
| 2574 | }
|
---|
| 2575 |
|
---|
| 2576 | // store pvs in this node
|
---|
| 2577 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2578 | {
|
---|
| 2579 | interior->SetPvs(pvs);
|
---|
| 2580 | }
|
---|
| 2581 |
|
---|
| 2582 | // set new pvs size
|
---|
| 2583 | UpdateScalarPvsSize(interior, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2584 |
|
---|
[1586] | 2585 | #else
|
---|
| 2586 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2587 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2588 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2589 | #endif
|
---|
| 2590 | }
|
---|
| 2591 |
|
---|
[1174] | 2592 |
|
---|
| 2593 |
|
---|
[1145] | 2594 | /*******************************************************************/
|
---|
| 2595 | /* BspViewCellsManager implementation */
|
---|
| 2596 | /*******************************************************************/
|
---|
[440] | 2597 |
|
---|
[482] | 2598 |
|
---|
[1264] | 2599 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 2600 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 2601 | {
|
---|
[1004] | 2602 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[1640] | 2603 |
|
---|
[587] | 2604 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 2605 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 2606 | }
|
---|
| 2607 |
|
---|
[462] | 2608 |
|
---|
[440] | 2609 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2610 | {
|
---|
| 2611 | return mBspTree->GetRoot() != NULL;
|
---|
| 2612 | }
|
---|
| 2613 |
|
---|
[480] | 2614 |
|
---|
[440] | 2615 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2616 | {
|
---|
| 2617 | return new BspViewCell(mesh);
|
---|
| 2618 | }
|
---|
| 2619 |
|
---|
[480] | 2620 |
|
---|
[574] | 2621 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2622 | const VssRayContainer &rays)
|
---|
[440] | 2623 | {
|
---|
[1545] | 2624 | // if view cells were already constructed, we can finish
|
---|
[440] | 2625 | if (ViewCellsConstructed())
|
---|
| 2626 | return 0;
|
---|
| 2627 |
|
---|
| 2628 | int sampleContributions = 0;
|
---|
[503] | 2629 |
|
---|
[469] | 2630 | // construct view cells using the collected samples
|
---|
| 2631 | RayContainer constructionRays;
|
---|
| 2632 | VssRayContainer savedRays;
|
---|
[440] | 2633 |
|
---|
[1563] | 2634 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 2635 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 2636 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2637 |
|
---|
[473] | 2638 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 2639 |
|
---|
[469] | 2640 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2641 | {
|
---|
[473] | 2642 | if (Random(1.0f) < prop)
|
---|
[469] | 2643 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2644 | else
|
---|
| 2645 | savedRays.push_back(*it);
|
---|
| 2646 | }
|
---|
[440] | 2647 |
|
---|
[1545] | 2648 | if (!mUsePredefinedViewCells)
|
---|
[503] | 2649 | {
|
---|
| 2650 | // no view cells loaded
|
---|
[587] | 2651 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2652 | // collect final view cells
|
---|
| 2653 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2654 | }
|
---|
[469] | 2655 | else
|
---|
[1551] | 2656 | {
|
---|
[1545] | 2657 | // use predefined view cells geometry =>
|
---|
| 2658 | // contruct bsp hierarchy over them
|
---|
[469] | 2659 | mBspTree->Construct(mViewCells);
|
---|
| 2660 | }
|
---|
| 2661 |
|
---|
| 2662 | // destroy rays created only for construction
|
---|
| 2663 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2664 |
|
---|
[440] | 2665 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 2666 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2667 |
|
---|
[469] | 2668 | // recast rest of the rays
|
---|
[649] | 2669 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2670 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2671 |
|
---|
[719] | 2672 | // real meshes are contructed at this stage
|
---|
| 2673 | if (0)
|
---|
| 2674 | {
|
---|
| 2675 | cout << "finalizing view cells ... ";
|
---|
| 2676 | FinalizeViewCells(true);
|
---|
| 2677 | cout << "finished" << endl;
|
---|
| 2678 | }
|
---|
| 2679 |
|
---|
[440] | 2680 | return sampleContributions;
|
---|
| 2681 | }
|
---|
| 2682 |
|
---|
[503] | 2683 |
|
---|
[480] | 2684 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 2685 | {
|
---|
[587] | 2686 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 2687 | { // view cells tree constructed
|
---|
[587] | 2688 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2689 | }
|
---|
| 2690 | else
|
---|
[1545] | 2691 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 2692 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 2693 | }
|
---|
[480] | 2694 | }
|
---|
[468] | 2695 |
|
---|
[503] | 2696 |
|
---|
[471] | 2697 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2698 | {
|
---|
[591] | 2699 | if (1)
|
---|
| 2700 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2701 | else
|
---|
[1545] | 2702 | // compute view cell area as subsititute for probability
|
---|
[591] | 2703 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2704 | }
|
---|
[440] | 2705 |
|
---|
[503] | 2706 |
|
---|
[440] | 2707 |
|
---|
[468] | 2708 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2709 | const Vector3 &termination,
|
---|
| 2710 | ViewCellContainer &viewcells)
|
---|
[440] | 2711 | {
|
---|
[468] | 2712 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2713 | }
|
---|
| 2714 |
|
---|
| 2715 |
|
---|
[1551] | 2716 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 2717 | {
|
---|
| 2718 | // save color code
|
---|
| 2719 | const int savedColorCode = mColorCode;
|
---|
| 2720 |
|
---|
| 2721 | // export merged view cells
|
---|
| 2722 | mColorCode = 0; // use random colors
|
---|
| 2723 |
|
---|
| 2724 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
| 2725 |
|
---|
| 2726 | cout << "exporting view cells after merge ... ";
|
---|
| 2727 |
|
---|
| 2728 | if (exporter)
|
---|
| 2729 | {
|
---|
| 2730 | if (mExportGeometry)
|
---|
| 2731 | {
|
---|
| 2732 | exporter->ExportGeometry(objects);
|
---|
| 2733 | }
|
---|
| 2734 |
|
---|
| 2735 | exporter->SetFilled();
|
---|
| 2736 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 2737 |
|
---|
| 2738 | delete exporter;
|
---|
| 2739 | }
|
---|
| 2740 | cout << "finished" << endl;
|
---|
| 2741 |
|
---|
| 2742 | // export merged view cells using pvs color coding
|
---|
| 2743 | mColorCode = 1;
|
---|
| 2744 |
|
---|
| 2745 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 2746 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2747 |
|
---|
| 2748 | if (exporter)
|
---|
| 2749 | {
|
---|
| 2750 | if (mExportGeometry)
|
---|
| 2751 | {
|
---|
| 2752 | exporter->ExportGeometry(objects);
|
---|
| 2753 | }
|
---|
| 2754 |
|
---|
| 2755 | exporter->SetFilled();
|
---|
| 2756 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 2757 |
|
---|
| 2758 | delete exporter;
|
---|
| 2759 | }
|
---|
| 2760 | cout << "finished" << endl;
|
---|
| 2761 |
|
---|
| 2762 | mColorCode = savedColorCode;
|
---|
| 2763 | }
|
---|
| 2764 |
|
---|
| 2765 |
|
---|
[503] | 2766 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2767 | const VssRayContainer &rays)
|
---|
| 2768 | {
|
---|
[469] | 2769 | if (!ViewCellsConstructed())
|
---|
[441] | 2770 | {
|
---|
| 2771 | Debug << "view cells not constructed" << endl;
|
---|
| 2772 | return 0;
|
---|
| 2773 | }
|
---|
[590] | 2774 |
|
---|
[1414] | 2775 | // view cells already finished before post processing step,
|
---|
| 2776 | // i.e., because they were loaded from disc
|
---|
[590] | 2777 | if (mViewCellsFinished)
|
---|
| 2778 | {
|
---|
| 2779 | FinalizeViewCells(true);
|
---|
| 2780 | EvaluateViewCellsStats();
|
---|
| 2781 |
|
---|
| 2782 | return 0;
|
---|
| 2783 | }
|
---|
| 2784 |
|
---|
[1444] | 2785 | //////////////////
|
---|
[1414] | 2786 | //-- merge leaves of the view cell hierarchy
|
---|
| 2787 |
|
---|
[649] | 2788 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2789 | long startTime = GetTime();
|
---|
| 2790 |
|
---|
| 2791 | VssRayContainer postProcessRays;
|
---|
| 2792 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2793 |
|
---|
[592] | 2794 | if (mMergeViewCells)
|
---|
[591] | 2795 | {
|
---|
[660] | 2796 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2797 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2798 | }
|
---|
| 2799 | else
|
---|
| 2800 | {
|
---|
[660] | 2801 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 2802 | ViewCell *root;
|
---|
| 2803 | // the spatial merge tree is difficult to build for
|
---|
| 2804 | // this type of construction, as view cells cover several
|
---|
| 2805 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 2806 | if (mUsePredefinedViewCells)
|
---|
| 2807 | {
|
---|
| 2808 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 2809 | }
|
---|
| 2810 | else
|
---|
| 2811 | {
|
---|
| 2812 | // create spatial merge hierarchy
|
---|
| 2813 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2814 | }
|
---|
| 2815 |
|
---|
[752] | 2816 | mViewCellsTree->SetRoot(root);
|
---|
| 2817 |
|
---|
[1415] | 2818 | // recompute pvs in the whole hierarchy
|
---|
[752] | 2819 | ObjectPvs pvs;
|
---|
| 2820 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2821 | }
|
---|
[440] | 2822 |
|
---|
[1415] | 2823 | cout << "finished" << endl;
|
---|
| 2824 | cout << "merged view cells in "
|
---|
| 2825 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 2826 |
|
---|
| 2827 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 2828 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 2829 |
|
---|
| 2830 |
|
---|
[1418] | 2831 | ////////////////////////
|
---|
[1444] | 2832 | //-- visualization and statistics after merge
|
---|
[1415] | 2833 |
|
---|
[666] | 2834 | if (1)
|
---|
| 2835 | {
|
---|
| 2836 | char mstats[100];
|
---|
[1004] | 2837 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2838 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2839 | }
|
---|
[650] | 2840 |
|
---|
[1551] | 2841 | // recompute view cells and stats
|
---|
| 2842 | ResetViewCells();
|
---|
[660] | 2843 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2844 |
|
---|
[1551] | 2845 | // visualization of the view cells
|
---|
[1545] | 2846 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 2847 |
|
---|
[719] | 2848 | // compute final meshes and volume / area
|
---|
| 2849 | if (1) FinalizeViewCells(true);
|
---|
| 2850 |
|
---|
[1486] | 2851 | // write view cells to disc
|
---|
| 2852 | if (1 && mExportViewCells)
|
---|
[587] | 2853 | {
|
---|
[840] | 2854 | char filename[100];
|
---|
[1004] | 2855 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2856 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2857 | }
|
---|
[840] | 2858 |
|
---|
[650] | 2859 | return 0;
|
---|
[440] | 2860 | }
|
---|
| 2861 |
|
---|
[477] | 2862 |
|
---|
| 2863 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2864 | {
|
---|
| 2865 | }
|
---|
| 2866 |
|
---|
| 2867 |
|
---|
[440] | 2868 | int BspViewCellsManager::GetType() const
|
---|
| 2869 | {
|
---|
| 2870 | return BSP;
|
---|
| 2871 | }
|
---|
| 2872 |
|
---|
| 2873 |
|
---|
| 2874 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2875 | const VssRayContainer &sampleRays)
|
---|
[440] | 2876 | {
|
---|
[469] | 2877 | if (!ViewCellsConstructed())
|
---|
| 2878 | return;
|
---|
[574] | 2879 |
|
---|
[1563] | 2880 | const int savedColorCode = mColorCode;
|
---|
[1551] | 2881 |
|
---|
[600] | 2882 | if (1) // export final view cells
|
---|
[440] | 2883 | {
|
---|
[1020] | 2884 | mColorCode = 1; // hack color code
|
---|
[1415] | 2885 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 2886 |
|
---|
| 2887 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2888 |
|
---|
[469] | 2889 | if (exporter)
|
---|
[440] | 2890 | {
|
---|
[600] | 2891 | if (mExportGeometry)
|
---|
[1416] | 2892 | {
|
---|
[600] | 2893 | exporter->ExportGeometry(objects);
|
---|
[1416] | 2894 | }
|
---|
[590] | 2895 |
|
---|
[1416] | 2896 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[469] | 2897 | delete exporter;
|
---|
[440] | 2898 | }
|
---|
[469] | 2899 | cout << "finished" << endl;
|
---|
[503] | 2900 | }
|
---|
[1551] | 2901 |
|
---|
[1545] | 2902 | // reset color code
|
---|
[600] | 2903 | mColorCode = savedColorCode;
|
---|
| 2904 |
|
---|
[1416] | 2905 |
|
---|
| 2906 | //////////////////
|
---|
[469] | 2907 | //-- visualization of the BSP splits
|
---|
[1416] | 2908 |
|
---|
[469] | 2909 | bool exportSplits = false;
|
---|
[1004] | 2910 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2911 |
|
---|
[469] | 2912 | if (exportSplits)
|
---|
[440] | 2913 | {
|
---|
[469] | 2914 | cout << "exporting splits ... ";
|
---|
[477] | 2915 | ExportSplits(objects);
|
---|
[469] | 2916 | cout << "finished" << endl;
|
---|
[440] | 2917 | }
|
---|
[477] | 2918 |
|
---|
[1570] | 2919 | int leafOut;
|
---|
| 2920 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 2921 | const int raysOut = 100;
|
---|
| 2922 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 2923 | }
|
---|
| 2924 |
|
---|
| 2925 |
|
---|
[477] | 2926 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2927 | {
|
---|
| 2928 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2929 |
|
---|
[503] | 2930 | if (exporter)
|
---|
| 2931 | {
|
---|
[598] | 2932 | //exporter->SetFilled();
|
---|
| 2933 | if (mExportGeometry)
|
---|
[1545] | 2934 | {
|
---|
[598] | 2935 | exporter->ExportGeometry(objects);
|
---|
[1545] | 2936 | }
|
---|
[598] | 2937 |
|
---|
[503] | 2938 | Material m;
|
---|
[440] | 2939 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2940 | exporter->SetForcedMaterial(m);
|
---|
| 2941 | exporter->SetWireframe();
|
---|
[503] | 2942 |
|
---|
[440] | 2943 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2944 |
|
---|
[1545] | 2945 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2946 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2947 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2948 | //exporter->ResetForcedMaterial();
|
---|
| 2949 |
|
---|
[440] | 2950 | delete exporter;
|
---|
| 2951 | }
|
---|
| 2952 | }
|
---|
| 2953 |
|
---|
[477] | 2954 |
|
---|
[1570] | 2955 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 2956 | const int maxViewCells,
|
---|
| 2957 | const bool sortViewCells,
|
---|
| 2958 | const bool exportPvs,
|
---|
| 2959 | const bool exportRays,
|
---|
| 2960 | const int maxRays,
|
---|
| 2961 | const string prefix,
|
---|
| 2962 | VssRayContainer *visRays)
|
---|
[440] | 2963 | {
|
---|
[1570] | 2964 | if (sortViewCells)
|
---|
| 2965 | { // sort view cells to visualize the largest view cells
|
---|
| 2966 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 2967 | }
|
---|
[440] | 2968 |
|
---|
[1545] | 2969 | //////////
|
---|
[1570] | 2970 | //-- some view cells for output
|
---|
[503] | 2971 |
|
---|
[1570] | 2972 | ViewCell::NewMail();
|
---|
| 2973 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 2974 |
|
---|
| 2975 | for (int i = 0; i < limit; ++ i)
|
---|
| 2976 | {
|
---|
| 2977 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 2978 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 2979 |
|
---|
[1570] | 2980 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 2981 | continue;
|
---|
[587] | 2982 |
|
---|
[1570] | 2983 | vc->Mail();
|
---|
[503] | 2984 |
|
---|
[1570] | 2985 | ObjectPvs pvs;
|
---|
| 2986 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 2987 |
|
---|
[1571] | 2988 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 2989 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 2990 |
|
---|
| 2991 | cout << "view cell " << idx << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[582] | 2992 |
|
---|
[1570] | 2993 | if (exportRays)
|
---|
| 2994 | {
|
---|
| 2995 | ////////////
|
---|
| 2996 | //-- export rays piercing this view cell
|
---|
[469] | 2997 |
|
---|
[1571] | 2998 | // use rays stored with the view cells
|
---|
| 2999 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 3000 | VssRayContainer collectRays;
|
---|
| 3001 |
|
---|
| 3002 | // collect initial view cells
|
---|
| 3003 | ViewCellContainer leaves;
|
---|
| 3004 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3005 |
|
---|
| 3006 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3007 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 3008 | {
|
---|
[1571] | 3009 | // prepare some rays for output
|
---|
| 3010 | VssRayContainer::const_iterator rit, rit_end = (*vit)->mVssRays.end();
|
---|
| 3011 | for (rit = (*vit)->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 3012 | {
|
---|
| 3013 | collectRays.push_back(*rit);
|
---|
| 3014 | }
|
---|
| 3015 | }
|
---|
| 3016 |
|
---|
| 3017 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3018 |
|
---|
[1570] | 3019 | // prepare some rays for output
|
---|
| 3020 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3021 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3022 | {
|
---|
[1570] | 3023 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3024 | if (p < raysOut)
|
---|
[587] | 3025 | {
|
---|
[1571] | 3026 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3027 | {
|
---|
[1571] | 3028 | vcRays.push_back(*rit);
|
---|
[1580] | 3029 | }
|
---|
[1571] | 3030 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 3031 | vcRays2.push_back(*rit);
|
---|
| 3032 | else
|
---|
| 3033 | vcRays3.push_back(*rit);
|
---|
| 3034 |
|
---|
[587] | 3035 | }
|
---|
[477] | 3036 | }
|
---|
[1571] | 3037 |
|
---|
| 3038 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3039 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3040 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3041 | }
|
---|
[1570] | 3042 |
|
---|
| 3043 | ////////////////
|
---|
| 3044 | //-- export view cell geometry
|
---|
[587] | 3045 |
|
---|
[478] | 3046 | exporter->SetWireframe();
|
---|
[477] | 3047 |
|
---|
[478] | 3048 | Material m;//= RandomMaterial();
|
---|
| 3049 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3050 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3051 |
|
---|
[1416] | 3052 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3053 | exporter->SetFilled();
|
---|
[469] | 3054 |
|
---|
[1570] | 3055 | if (exportPvs)
|
---|
[478] | 3056 | {
|
---|
[1570] | 3057 | Intersectable::NewMail();
|
---|
| 3058 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1571] | 3059 |
|
---|
[1570] | 3060 | // output PVS of view cell
|
---|
| 3061 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 3062 | {
|
---|
| 3063 | Intersectable *intersect = (*oit).first;
|
---|
| 3064 |
|
---|
| 3065 | if (!intersect->Mailed())
|
---|
| 3066 | {
|
---|
| 3067 | intersect->Mail();
|
---|
[1571] | 3068 |
|
---|
[1570] | 3069 | m = RandomMaterial();
|
---|
| 3070 | exporter->SetForcedMaterial(m);
|
---|
| 3071 | exporter->ExportIntersectable(intersect);
|
---|
| 3072 | }
|
---|
[503] | 3073 | }
|
---|
[1570] | 3074 | cout << endl;
|
---|
[477] | 3075 | }
|
---|
[1570] | 3076 |
|
---|
[478] | 3077 | DEL_PTR(exporter);
|
---|
| 3078 | cout << "finished" << endl;
|
---|
[477] | 3079 | }
|
---|
[440] | 3080 | }
|
---|
| 3081 |
|
---|
[441] | 3082 |
|
---|
[693] | 3083 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3084 | {
|
---|
| 3085 | ViewCellContainer leaves;
|
---|
| 3086 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3087 |
|
---|
| 3088 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3089 |
|
---|
| 3090 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3091 | float subdivVol = 0;
|
---|
| 3092 | float newVol = 0;
|
---|
| 3093 |
|
---|
| 3094 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3095 | {
|
---|
| 3096 | BspNodeGeometry geom;
|
---|
[1551] | 3097 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3098 |
|
---|
| 3099 | const float lVol = geom.GetVolume();
|
---|
| 3100 | newVol += lVol;
|
---|
| 3101 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3102 |
|
---|
[1551] | 3103 | const float thres = 0.9f;
|
---|
[694] | 3104 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3105 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3106 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3107 | }
|
---|
| 3108 |
|
---|
| 3109 | Debug << "exact volume: " << vol << endl;
|
---|
| 3110 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3111 | Debug << "new volume: " << newVol << endl;
|
---|
| 3112 | }
|
---|
| 3113 |
|
---|
| 3114 |
|
---|
[580] | 3115 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3116 | ViewCell *vc,
|
---|
[1416] | 3117 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3118 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3119 | ) const
|
---|
[1557] | 3120 | {
|
---|
[660] | 3121 | if (clipPlane)
|
---|
[591] | 3122 | {
|
---|
[1047] | 3123 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3124 |
|
---|
[726] | 3125 | ViewCellContainer leaves;
|
---|
| 3126 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3127 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3128 |
|
---|
[726] | 3129 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3130 | {
|
---|
[726] | 3131 | BspNodeGeometry geom;
|
---|
[681] | 3132 | BspNodeGeometry front;
|
---|
| 3133 | BspNodeGeometry back;
|
---|
[591] | 3134 |
|
---|
[1551] | 3135 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3136 |
|
---|
[1563] | 3137 | const float eps = 0.0001f;
|
---|
[1047] | 3138 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3139 |
|
---|
| 3140 | if (cf == -1)
|
---|
| 3141 | {
|
---|
| 3142 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3143 | }
|
---|
| 3144 | else if (cf == 0)
|
---|
| 3145 | {
|
---|
| 3146 | geom.SplitGeometry(front,
|
---|
| 3147 | back,
|
---|
[1047] | 3148 | plane,
|
---|
[726] | 3149 | mViewSpaceBox,
|
---|
| 3150 | eps);
|
---|
[1563] | 3151 |
|
---|
[726] | 3152 | if (back.Valid())
|
---|
[1563] | 3153 | {
|
---|
[726] | 3154 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3155 | }
|
---|
| 3156 | }
|
---|
[681] | 3157 | }
|
---|
[591] | 3158 | }
|
---|
| 3159 | else
|
---|
| 3160 | {
|
---|
[1563] | 3161 | // export mesh if available
|
---|
| 3162 | // TODO: some bug here?
|
---|
| 3163 | if (1 && vc->GetMesh())
|
---|
| 3164 | {
|
---|
| 3165 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3166 | }
|
---|
| 3167 | else
|
---|
| 3168 | {
|
---|
| 3169 | BspNodeGeometry geom;
|
---|
| 3170 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3171 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3172 | }
|
---|
[591] | 3173 | }
|
---|
[482] | 3174 | }
|
---|
| 3175 |
|
---|
[503] | 3176 |
|
---|
| 3177 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3178 | {
|
---|
[1551] | 3179 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3180 | BspNodeGeometry geom;
|
---|
| 3181 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3182 |
|
---|
[1001] | 3183 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3184 |
|
---|
[840] | 3185 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3186 | vc->SetMesh(mesh);
|
---|
[503] | 3187 | }
|
---|
| 3188 |
|
---|
[551] | 3189 |
|
---|
[587] | 3190 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3191 | const bool createMesh)
|
---|
[502] | 3192 | {
|
---|
[587] | 3193 | float area = 0;
|
---|
| 3194 | float volume = 0;
|
---|
[572] | 3195 |
|
---|
[587] | 3196 | ViewCellContainer leaves;
|
---|
| 3197 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3198 |
|
---|
| 3199 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3200 |
|
---|
[693] | 3201 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3202 | {
|
---|
| 3203 | BspNodeGeometry geom;
|
---|
| 3204 |
|
---|
[1551] | 3205 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3206 |
|
---|
[719] | 3207 | const float lVol = geom.GetVolume();
|
---|
| 3208 | const float lArea = geom.GetArea();
|
---|
[693] | 3209 |
|
---|
| 3210 | area += lArea;
|
---|
| 3211 | volume += lVol;
|
---|
[1551] | 3212 |
|
---|
| 3213 | CreateMesh(*it);
|
---|
[587] | 3214 | }
|
---|
| 3215 |
|
---|
| 3216 | viewCell->SetVolume(volume);
|
---|
| 3217 | viewCell->SetArea(area);
|
---|
[502] | 3218 | }
|
---|
| 3219 |
|
---|
[580] | 3220 |
|
---|
[879] | 3221 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3222 | {
|
---|
[1021] | 3223 | if (!ViewCellsConstructed())
|
---|
[1545] | 3224 | {
|
---|
[587] | 3225 | return NULL;
|
---|
[1545] | 3226 | }
|
---|
[587] | 3227 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3228 | {
|
---|
[587] | 3229 | return NULL;
|
---|
[1545] | 3230 | }
|
---|
[587] | 3231 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3232 | }
|
---|
| 3233 |
|
---|
| 3234 |
|
---|
[587] | 3235 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3236 | vector<MergeCandidate> &candidates)
|
---|
| 3237 | {
|
---|
| 3238 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3239 |
|
---|
| 3240 | if (mUseRaysForMerge)
|
---|
| 3241 | {
|
---|
| 3242 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3243 | }
|
---|
| 3244 | else
|
---|
| 3245 | {
|
---|
| 3246 | vector<BspLeaf *> leaves;
|
---|
| 3247 | mBspTree->CollectLeaves(leaves);
|
---|
| 3248 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3249 | }
|
---|
| 3250 |
|
---|
| 3251 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3252 | }
|
---|
| 3253 |
|
---|
| 3254 |
|
---|
[440] | 3255 |
|
---|
[1047] | 3256 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3257 | const bool exportPvs,
|
---|
| 3258 | const ObjectContainer &objects)
|
---|
[590] | 3259 | {
|
---|
[1551] | 3260 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3261 | {
|
---|
| 3262 | return false;
|
---|
| 3263 | }
|
---|
| 3264 |
|
---|
[590] | 3265 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3266 |
|
---|
[1551] | 3267 | OUT_STREAM stream(filename.c_str());
|
---|
| 3268 |
|
---|
[590] | 3269 | // for output we need unique ids for each view cell
|
---|
| 3270 | CreateUniqueViewCellIds();
|
---|
[503] | 3271 |
|
---|
[590] | 3272 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3273 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3274 |
|
---|
[1551] | 3275 | if (exportPvs)
|
---|
| 3276 | {
|
---|
| 3277 | //////////
|
---|
| 3278 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3279 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3280 |
|
---|
[1551] | 3281 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3282 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3283 |
|
---|
[1551] | 3284 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3285 | {
|
---|
[1563] | 3286 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3287 |
|
---|
[1563] | 3288 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3289 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3290 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3291 | }
|
---|
[590] | 3292 |
|
---|
[1551] | 3293 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3294 | }
|
---|
| 3295 |
|
---|
| 3296 | ///////////
|
---|
| 3297 | //-- export the view cells and the pvs
|
---|
| 3298 |
|
---|
| 3299 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3300 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3301 |
|
---|
| 3302 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 3303 |
|
---|
[590] | 3304 | stream << "</ViewCells>" << endl;
|
---|
| 3305 |
|
---|
[1551] | 3306 | /////////////
|
---|
| 3307 | //-- export the view space hierarchy
|
---|
| 3308 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 3309 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3310 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 3311 |
|
---|
[590] | 3312 | mBspTree->Export(stream);
|
---|
| 3313 |
|
---|
[1551] | 3314 | // end tags
|
---|
| 3315 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 3316 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3317 |
|
---|
[1551] | 3318 | stream.close();
|
---|
[590] | 3319 | cout << "finished" << endl;
|
---|
[1551] | 3320 |
|
---|
[590] | 3321 | return true;
|
---|
| 3322 | }
|
---|
| 3323 |
|
---|
| 3324 |
|
---|
[1545] | 3325 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 3326 | {
|
---|
| 3327 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 3328 |
|
---|
| 3329 | // evaluate merge cost for priority traversal
|
---|
| 3330 | const float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3331 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 3332 |
|
---|
| 3333 | float volume = 0;
|
---|
| 3334 | vector<BspLeaf *> leaves;
|
---|
| 3335 | mBspTree->CollectLeaves(leaves);
|
---|
| 3336 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 3337 | ViewCell::NewMail();
|
---|
| 3338 |
|
---|
[1545] | 3339 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 3340 | {
|
---|
| 3341 | BspLeaf *leaf = *lit;
|
---|
| 3342 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 3343 |
|
---|
[1548] | 3344 | if (!vc->Mailed())
|
---|
| 3345 | {
|
---|
| 3346 | vc->Mail();
|
---|
| 3347 | vc->SetMergeCost(0.0f);
|
---|
| 3348 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 3349 |
|
---|
[1548] | 3350 | volume += vc->GetVolume();
|
---|
| 3351 | volume += vc->GetVolume();
|
---|
| 3352 | vcRoot->SetVolume(volume);
|
---|
| 3353 | }
|
---|
[1545] | 3354 | }
|
---|
| 3355 |
|
---|
| 3356 | return vcRoot;
|
---|
| 3357 | }
|
---|
| 3358 |
|
---|
| 3359 |
|
---|
[650] | 3360 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3361 | {
|
---|
[752] | 3362 | // terminate recursion
|
---|
[650] | 3363 | if (root->IsLeaf())
|
---|
| 3364 | {
|
---|
[752] | 3365 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3366 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3367 | return leaf->GetViewCell();
|
---|
[650] | 3368 | }
|
---|
| 3369 |
|
---|
| 3370 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3371 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3372 |
|
---|
[752] | 3373 | // evaluate merge cost for priority traversal
|
---|
[650] | 3374 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3375 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3376 |
|
---|
[650] | 3377 | float volume = 0;
|
---|
[649] | 3378 |
|
---|
[650] | 3379 | BspNode *front = interior->GetFront();
|
---|
| 3380 | BspNode *back = interior->GetBack();
|
---|
[649] | 3381 |
|
---|
[752] | 3382 |
|
---|
[1545] | 3383 | ////////////
|
---|
[752] | 3384 | //-- recursivly compute child hierarchies
|
---|
[1545] | 3385 |
|
---|
[650] | 3386 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3387 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3388 |
|
---|
[752] | 3389 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3390 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3391 |
|
---|
[650] | 3392 | volume += backVc->GetVolume();
|
---|
| 3393 | volume += frontVc->GetVolume();
|
---|
[649] | 3394 |
|
---|
[650] | 3395 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3396 |
|
---|
[650] | 3397 | return viewCellInterior;
|
---|
[610] | 3398 | }
|
---|
| 3399 |
|
---|
[650] | 3400 |
|
---|
[590] | 3401 | /************************************************************************/
|
---|
| 3402 | /* KdViewCellsManager implementation */
|
---|
| 3403 | /************************************************************************/
|
---|
| 3404 |
|
---|
| 3405 |
|
---|
| 3406 |
|
---|
[1264] | 3407 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3408 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3409 | {
|
---|
| 3410 | }
|
---|
| 3411 |
|
---|
[605] | 3412 |
|
---|
[471] | 3413 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3414 | {
|
---|
[479] | 3415 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3416 | if (0)
|
---|
| 3417 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3418 | else
|
---|
| 3419 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3420 | }
|
---|
| 3421 |
|
---|
| 3422 |
|
---|
| 3423 |
|
---|
[479] | 3424 |
|
---|
[480] | 3425 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3426 | {
|
---|
| 3427 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3428 | }
|
---|
[479] | 3429 |
|
---|
[519] | 3430 |
|
---|
[574] | 3431 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3432 | const VssRayContainer &rays)
|
---|
[440] | 3433 | {
|
---|
[441] | 3434 | // if view cells already constructed
|
---|
[440] | 3435 | if (ViewCellsConstructed())
|
---|
| 3436 | return 0;
|
---|
[441] | 3437 |
|
---|
[440] | 3438 | mKdTree->Construct();
|
---|
| 3439 |
|
---|
[480] | 3440 | mTotalAreaValid = false;
|
---|
[469] | 3441 | // create the view cells
|
---|
| 3442 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3443 | // cast rays
|
---|
[574] | 3444 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3445 |
|
---|
[479] | 3446 | EvaluateViewCellsStats();
|
---|
[660] | 3447 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3448 |
|
---|
[440] | 3449 | return 0;
|
---|
| 3450 | }
|
---|
| 3451 |
|
---|
[587] | 3452 |
|
---|
[440] | 3453 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3454 | {
|
---|
| 3455 | return mKdTree->GetRoot() != NULL;
|
---|
| 3456 | }
|
---|
| 3457 |
|
---|
[1020] | 3458 |
|
---|
[503] | 3459 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3460 | const VssRayContainer &rays)
|
---|
[440] | 3461 | {
|
---|
| 3462 | return 0;
|
---|
| 3463 | }
|
---|
| 3464 |
|
---|
[1020] | 3465 |
|
---|
[1570] | 3466 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3467 | const int maxViewCells,
|
---|
| 3468 | const bool sortViewCells,
|
---|
| 3469 | const bool exportPvs,
|
---|
| 3470 | const bool exportRays,
|
---|
| 3471 | const int maxRays,
|
---|
| 3472 | const string prefix,
|
---|
| 3473 | VssRayContainer *visRays)
|
---|
| 3474 | {
|
---|
| 3475 | // TODO
|
---|
| 3476 | }
|
---|
| 3477 |
|
---|
| 3478 |
|
---|
[440] | 3479 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3480 | const VssRayContainer &sampleRays)
|
---|
[440] | 3481 | {
|
---|
[441] | 3482 | if (!ViewCellsConstructed())
|
---|
| 3483 | return;
|
---|
| 3484 |
|
---|
[469] | 3485 | // using view cells instead of the kd PVS of objects
|
---|
| 3486 | const bool useViewCells = true;
|
---|
| 3487 | bool exportRays = false;
|
---|
[440] | 3488 |
|
---|
| 3489 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3490 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3491 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3492 |
|
---|
[469] | 3493 | if (useViewCells)
|
---|
[440] | 3494 | {
|
---|
[469] | 3495 | const int leafOut = 10;
|
---|
[503] | 3496 |
|
---|
[469] | 3497 | ViewCell::NewMail();
|
---|
[503] | 3498 |
|
---|
[469] | 3499 | //-- some rays for output
|
---|
| 3500 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3501 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3502 |
|
---|
| 3503 | //-- some random view cells and rays for output
|
---|
| 3504 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3505 |
|
---|
[469] | 3506 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3507 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3508 |
|
---|
[469] | 3509 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3510 | {
|
---|
[469] | 3511 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3512 | RayContainer vcRays;
|
---|
[503] | 3513 |
|
---|
[469] | 3514 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3515 | #if 0
|
---|
[469] | 3516 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3517 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3518 | {
|
---|
[469] | 3519 | Ray *ray = sampleRays[k];
|
---|
[503] | 3520 |
|
---|
[469] | 3521 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3522 | {
|
---|
| 3523 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3524 |
|
---|
| 3525 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3526 | {
|
---|
| 3527 | vcRays.push_back(ray);
|
---|
| 3528 | }
|
---|
| 3529 | }
|
---|
[479] | 3530 | }
|
---|
[503] | 3531 | #endif
|
---|
[469] | 3532 | Intersectable::NewMail();
|
---|
[503] | 3533 |
|
---|
[469] | 3534 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 3535 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 3536 |
|
---|
[1570] | 3537 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3538 | exporter->SetFilled();
|
---|
| 3539 |
|
---|
| 3540 | exporter->SetWireframe();
|
---|
| 3541 | //exporter->SetFilled();
|
---|
[503] | 3542 |
|
---|
[469] | 3543 | Material m;//= RandomMaterial();
|
---|
| 3544 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3545 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3546 |
|
---|
[469] | 3547 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3548 | exporter->ExportBox(box);
|
---|
| 3549 |
|
---|
| 3550 | // export rays piercing this view cell
|
---|
[503] | 3551 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3552 |
|
---|
[469] | 3553 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3554 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3555 |
|
---|
[469] | 3556 | // exporter->SetWireframe();
|
---|
| 3557 | exporter->SetFilled();
|
---|
[503] | 3558 |
|
---|
[469] | 3559 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3560 | // -- output PVS of view cell
|
---|
[1189] | 3561 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3562 | {
|
---|
| 3563 | Intersectable *intersect = (*it).first;
|
---|
| 3564 | if (!intersect->Mailed())
|
---|
| 3565 | {
|
---|
| 3566 | exporter->ExportIntersectable(intersect);
|
---|
| 3567 | intersect->Mail();
|
---|
[503] | 3568 | }
|
---|
[440] | 3569 | }
|
---|
[503] | 3570 |
|
---|
[469] | 3571 | DEL_PTR(exporter);
|
---|
| 3572 | cout << "finished" << endl;
|
---|
[440] | 3573 | }
|
---|
[469] | 3574 |
|
---|
| 3575 | DEL_PTR(rays);
|
---|
[440] | 3576 | }
|
---|
[469] | 3577 | else // using kd PVS of objects
|
---|
| 3578 | {
|
---|
| 3579 | for (int i = 0; i < limit; ++ i)
|
---|
| 3580 | {
|
---|
| 3581 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3582 |
|
---|
[469] | 3583 | // check whether we can add this to the rays
|
---|
[503] | 3584 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3585 | {
|
---|
| 3586 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3587 | {
|
---|
| 3588 | rays[j].push_back(ray);
|
---|
| 3589 | }
|
---|
| 3590 | }
|
---|
| 3591 | }
|
---|
[440] | 3592 |
|
---|
[503] | 3593 | if (exportRays)
|
---|
[469] | 3594 | {
|
---|
| 3595 | Exporter *exporter = NULL;
|
---|
| 3596 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3597 | exporter->SetWireframe();
|
---|
| 3598 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3599 |
|
---|
[728] | 3600 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3601 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3602 |
|
---|
| 3603 | exporter->SetFilled();
|
---|
| 3604 | delete exporter;
|
---|
| 3605 | }
|
---|
[440] | 3606 |
|
---|
[503] | 3607 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3608 | {
|
---|
| 3609 | Intersectable *object = objects[k];
|
---|
[1570] | 3610 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[440] | 3611 |
|
---|
[1570] | 3612 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3613 | exporter->SetWireframe();
|
---|
[503] | 3614 |
|
---|
[1233] | 3615 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 3616 | Intersectable::NewMail();
|
---|
[503] | 3617 |
|
---|
[469] | 3618 | // avoid adding the object to the list
|
---|
| 3619 | object->Mail();
|
---|
| 3620 | ObjectContainer visibleObjects;
|
---|
[503] | 3621 |
|
---|
[1233] | 3622 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3623 | {
|
---|
[1233] | 3624 | KdNode *node = (*kit).first;
|
---|
[469] | 3625 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3626 |
|
---|
[469] | 3627 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3628 | }
|
---|
[503] | 3629 |
|
---|
[469] | 3630 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3631 | exporter->SetFilled();
|
---|
[503] | 3632 |
|
---|
[469] | 3633 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3634 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3635 |
|
---|
[469] | 3636 | Material m;
|
---|
| 3637 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3638 | exporter->SetForcedMaterial(m);
|
---|
| 3639 | exporter->ExportIntersectable(object);
|
---|
[503] | 3640 |
|
---|
[469] | 3641 | delete exporter;
|
---|
[440] | 3642 | }
|
---|
[503] | 3643 | }
|
---|
[440] | 3644 | }
|
---|
| 3645 |
|
---|
[469] | 3646 |
|
---|
[580] | 3647 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3648 | {
|
---|
| 3649 | return new KdViewCell(mesh);
|
---|
| 3650 | }
|
---|
[482] | 3651 |
|
---|
[580] | 3652 |
|
---|
| 3653 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3654 | ViewCell *vc,
|
---|
[1416] | 3655 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3656 | const AxisAlignedPlane *clipPlane
|
---|
| 3657 | ) const
|
---|
[482] | 3658 | {
|
---|
[580] | 3659 | ViewCellContainer leaves;
|
---|
| 3660 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3661 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3662 |
|
---|
| 3663 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3664 | {
|
---|
| 3665 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 3666 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 3667 | }
|
---|
[482] | 3668 | }
|
---|
| 3669 |
|
---|
| 3670 |
|
---|
[440] | 3671 | int KdViewCellsManager::GetType() const
|
---|
| 3672 | {
|
---|
| 3673 | return ViewCellsManager::KD;
|
---|
| 3674 | }
|
---|
| 3675 |
|
---|
| 3676 |
|
---|
[441] | 3677 |
|
---|
[440] | 3678 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3679 | {
|
---|
| 3680 | KdNode *node = leaf;
|
---|
| 3681 |
|
---|
| 3682 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3683 | node = node->mParent;
|
---|
[1176] | 3684 |
|
---|
[440] | 3685 | return node;
|
---|
| 3686 | }
|
---|
| 3687 |
|
---|
[469] | 3688 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3689 | const Vector3 &termination,
|
---|
| 3690 | ViewCellContainer &viewcells)
|
---|
[466] | 3691 | {
|
---|
[469] | 3692 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3693 | }
|
---|
| 3694 |
|
---|
[469] | 3695 |
|
---|
[503] | 3696 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3697 | {
|
---|
[551] | 3698 | // TODO
|
---|
[503] | 3699 | }
|
---|
| 3700 |
|
---|
[580] | 3701 |
|
---|
| 3702 |
|
---|
| 3703 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3704 | vector<MergeCandidate> &candidates)
|
---|
| 3705 | {
|
---|
| 3706 | // TODO
|
---|
| 3707 | }
|
---|
| 3708 |
|
---|
[1021] | 3709 |
|
---|
| 3710 |
|
---|
[503] | 3711 | /**************************************************************************/
|
---|
| 3712 | /* VspBspViewCellsManager implementation */
|
---|
| 3713 | /**************************************************************************/
|
---|
[482] | 3714 |
|
---|
[503] | 3715 |
|
---|
[1264] | 3716 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 3717 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 3718 | {
|
---|
[1004] | 3719 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3720 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3721 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3722 | }
|
---|
| 3723 |
|
---|
[477] | 3724 |
|
---|
[475] | 3725 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3726 | {
|
---|
| 3727 | }
|
---|
| 3728 |
|
---|
[477] | 3729 |
|
---|
[471] | 3730 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3731 | {
|
---|
[551] | 3732 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3733 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3734 | else
|
---|
| 3735 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3736 | }
|
---|
| 3737 |
|
---|
[477] | 3738 |
|
---|
[480] | 3739 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3740 | {
|
---|
[1545] | 3741 | // view cells tree constructed?
|
---|
[581] | 3742 | if (!ViewCellsTreeConstructed())
|
---|
| 3743 | {
|
---|
[590] | 3744 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3745 | }
|
---|
| 3746 | else
|
---|
[1264] | 3747 | {
|
---|
| 3748 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3749 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3750 | }
|
---|
[480] | 3751 | }
|
---|
| 3752 |
|
---|
| 3753 |
|
---|
[1021] | 3754 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3755 | vector<MergeCandidate> &candidates)
|
---|
| 3756 | {
|
---|
| 3757 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3758 |
|
---|
| 3759 | if (mUseRaysForMerge)
|
---|
| 3760 | {
|
---|
| 3761 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3762 | }
|
---|
| 3763 | else
|
---|
| 3764 | {
|
---|
| 3765 | vector<BspLeaf *> leaves;
|
---|
| 3766 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3767 |
|
---|
| 3768 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3769 | }
|
---|
| 3770 |
|
---|
| 3771 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3772 | }
|
---|
| 3773 |
|
---|
| 3774 |
|
---|
[442] | 3775 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3776 | {
|
---|
| 3777 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3778 | }
|
---|
| 3779 |
|
---|
[462] | 3780 |
|
---|
[442] | 3781 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3782 | {
|
---|
| 3783 | return new BspViewCell(mesh);
|
---|
| 3784 | }
|
---|
| 3785 |
|
---|
[569] | 3786 |
|
---|
[574] | 3787 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3788 | const VssRayContainer &rays)
|
---|
[442] | 3789 | {
|
---|
[710] | 3790 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3791 |
|
---|
[503] | 3792 | // if view cells were already constructed
|
---|
| 3793 | if (ViewCellsConstructed())
|
---|
[1545] | 3794 | {
|
---|
[503] | 3795 | return 0;
|
---|
[1545] | 3796 | }
|
---|
[442] | 3797 |
|
---|
[503] | 3798 | int sampleContributions = 0;
|
---|
| 3799 | VssRayContainer sampleRays;
|
---|
| 3800 |
|
---|
[1545] | 3801 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 3802 |
|
---|
[660] | 3803 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3804 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3805 |
|
---|
[1545] | 3806 | VssRayContainer savedRays;
|
---|
[487] | 3807 |
|
---|
[1545] | 3808 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3809 | {
|
---|
| 3810 | VssRayContainer constructionRays;
|
---|
| 3811 |
|
---|
| 3812 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 3813 |
|
---|
[1545] | 3814 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 3815 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 3816 |
|
---|
[667] | 3817 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 3818 | }
|
---|
[666] | 3819 | else
|
---|
[1221] | 3820 | {
|
---|
[1545] | 3821 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 3822 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 3823 | }
|
---|
[667] | 3824 |
|
---|
[490] | 3825 | // collapse invalid regions
|
---|
[491] | 3826 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 3827 | long startTime = GetTime();
|
---|
| 3828 |
|
---|
[1002] | 3829 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3830 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3831 | << " seconds" << endl;
|
---|
| 3832 |
|
---|
[495] | 3833 | cout << "finished" << endl;
|
---|
[503] | 3834 |
|
---|
[1444] | 3835 | /////////////////
|
---|
[1221] | 3836 | //-- stats after construction
|
---|
| 3837 |
|
---|
[660] | 3838 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3839 |
|
---|
[480] | 3840 | ResetViewCells();
|
---|
[660] | 3841 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3842 |
|
---|
[491] | 3843 |
|
---|
[1444] | 3844 | //////////////////////
|
---|
[1545] | 3845 | //-- recast the rest of the rays
|
---|
[1570] | 3846 |
|
---|
[495] | 3847 | startTime = GetTime();
|
---|
[503] | 3848 |
|
---|
[491] | 3849 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3850 |
|
---|
| 3851 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3852 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3853 |
|
---|
[491] | 3854 | cout << "finished" << endl;
|
---|
| 3855 |
|
---|
[503] | 3856 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3857 | << " secs" << endl;
|
---|
[442] | 3858 |
|
---|
[485] | 3859 | cout << "construction finished" << endl;
|
---|
[503] | 3860 |
|
---|
[719] | 3861 | if (0)
|
---|
[1545] | 3862 | { ////////
|
---|
[1077] | 3863 | //-- real meshes are contructed at this stage
|
---|
[719] | 3864 | cout << "finalizing view cells ... ";
|
---|
| 3865 | FinalizeViewCells(true);
|
---|
| 3866 | cout << "finished" << endl;
|
---|
| 3867 | }
|
---|
| 3868 |
|
---|
[442] | 3869 | return sampleContributions;
|
---|
| 3870 | }
|
---|
| 3871 |
|
---|
[489] | 3872 |
|
---|
[503] | 3873 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3874 | const ObjectContainer &objects)
|
---|
[475] | 3875 | {
|
---|
[442] | 3876 | int vcSize = 0;
|
---|
| 3877 | int pvsSize = 0;
|
---|
| 3878 |
|
---|
[650] | 3879 | //-- merge view cells
|
---|
| 3880 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3881 | long startTime = GetTime();
|
---|
| 3882 |
|
---|
| 3883 |
|
---|
[597] | 3884 | if (mMergeViewCells)
|
---|
| 3885 | {
|
---|
| 3886 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3887 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3888 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3889 | }
|
---|
| 3890 | else
|
---|
| 3891 | {
|
---|
[710] | 3892 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3893 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3894 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3895 |
|
---|
| 3896 | // compute pvs
|
---|
| 3897 | ObjectPvs pvs;
|
---|
| 3898 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3899 | }
|
---|
[442] | 3900 |
|
---|
[666] | 3901 | if (1)
|
---|
| 3902 | {
|
---|
| 3903 | char mstats[100];
|
---|
[752] | 3904 | ObjectPvs pvs;
|
---|
| 3905 |
|
---|
[1004] | 3906 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3907 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3908 | }
|
---|
[485] | 3909 |
|
---|
[650] | 3910 | cout << "merged view cells in "
|
---|
| 3911 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3912 |
|
---|
[650] | 3913 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3914 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3915 |
|
---|
| 3916 |
|
---|
[1444] | 3917 | //////////////////
|
---|
| 3918 | //-- stats and visualizations
|
---|
| 3919 |
|
---|
[600] | 3920 | int savedColorCode = mColorCode;
|
---|
| 3921 |
|
---|
[660] | 3922 | // get currently active view cell set
|
---|
| 3923 | ResetViewCells();
|
---|
| 3924 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 3925 |
|
---|
[1616] | 3926 | if (mShowVisualization) // export merged view cells
|
---|
[483] | 3927 | {
|
---|
[600] | 3928 | mColorCode = 0;
|
---|
[744] | 3929 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3930 |
|
---|
[485] | 3931 | cout << "exporting view cells after merge ... ";
|
---|
| 3932 |
|
---|
| 3933 | if (exporter)
|
---|
[483] | 3934 | {
|
---|
[600] | 3935 | if (0)
|
---|
| 3936 | exporter->SetWireframe();
|
---|
| 3937 | else
|
---|
| 3938 | exporter->SetFilled();
|
---|
| 3939 |
|
---|
[1416] | 3940 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[600] | 3941 |
|
---|
[485] | 3942 | if (mExportGeometry)
|
---|
[483] | 3943 | {
|
---|
[485] | 3944 | Material m;
|
---|
| 3945 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3946 | exporter->SetForcedMaterial(m);
|
---|
| 3947 | exporter->SetFilled();
|
---|
[442] | 3948 |
|
---|
[485] | 3949 | exporter->ExportGeometry(objects);
|
---|
[442] | 3950 | }
|
---|
[485] | 3951 |
|
---|
[600] | 3952 | delete exporter;
|
---|
| 3953 | }
|
---|
| 3954 | cout << "finished" << endl;
|
---|
| 3955 | }
|
---|
| 3956 |
|
---|
[1616] | 3957 | if (mShowVisualization)
|
---|
[600] | 3958 | {
|
---|
[1416] | 3959 | // use pvs size for color coding
|
---|
| 3960 | mColorCode = 1;
|
---|
[744] | 3961 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 3962 |
|
---|
[600] | 3963 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3964 |
|
---|
| 3965 | if (exporter)
|
---|
| 3966 | {
|
---|
[1416] | 3967 | exporter->SetFilled();
|
---|
[598] | 3968 |
|
---|
[1416] | 3969 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[598] | 3970 |
|
---|
[600] | 3971 | if (mExportGeometry)
|
---|
| 3972 | {
|
---|
| 3973 | Material m;
|
---|
| 3974 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3975 | exporter->SetForcedMaterial(m);
|
---|
| 3976 | exporter->SetFilled();
|
---|
| 3977 |
|
---|
| 3978 | exporter->ExportGeometry(objects);
|
---|
| 3979 | }
|
---|
| 3980 |
|
---|
[485] | 3981 | delete exporter;
|
---|
[442] | 3982 | }
|
---|
[485] | 3983 | cout << "finished" << endl;
|
---|
[442] | 3984 | }
|
---|
[600] | 3985 |
|
---|
| 3986 | mColorCode = savedColorCode;
|
---|
[503] | 3987 | }
|
---|
[475] | 3988 |
|
---|
[503] | 3989 |
|
---|
[564] | 3990 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3991 | const ObjectContainer &objects)
|
---|
[503] | 3992 | {
|
---|
[485] | 3993 | mRenderer->RenderScene();
|
---|
[1616] | 3994 |
|
---|
[503] | 3995 | SimulationStatistics ss;
|
---|
[485] | 3996 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 3997 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 3998 |
|
---|
[1414] | 3999 | const long startTime = GetTime();
|
---|
[489] | 4000 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 4001 |
|
---|
| 4002 | // refining the merged view cells
|
---|
[580] | 4003 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 4004 |
|
---|
[442] | 4005 | //-- stats and visualizations
|
---|
| 4006 | cout << "finished" << endl;
|
---|
[485] | 4007 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 4008 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 4009 |
|
---|
[485] | 4010 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 4011 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 4012 | }
|
---|
[495] | 4013 |
|
---|
[517] | 4014 |
|
---|
[503] | 4015 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4016 | const VssRayContainer &rays)
|
---|
[840] | 4017 | {
|
---|
[503] | 4018 | if (!ViewCellsConstructed())
|
---|
| 4019 | {
|
---|
[517] | 4020 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4021 | return 0;
|
---|
| 4022 | }
|
---|
[520] | 4023 |
|
---|
[609] | 4024 | // view cells already finished before post processing step
|
---|
| 4025 | // (i.e. because they were loaded)
|
---|
[520] | 4026 | if (mViewCellsFinished)
|
---|
[542] | 4027 | {
|
---|
[551] | 4028 | FinalizeViewCells(true);
|
---|
[542] | 4029 | EvaluateViewCellsStats();
|
---|
[577] | 4030 |
|
---|
[517] | 4031 | return 0;
|
---|
[542] | 4032 | }
|
---|
[448] | 4033 |
|
---|
[710] | 4034 | // check if new view cells turned invalid
|
---|
| 4035 | int minPvs, maxPvs;
|
---|
[564] | 4036 |
|
---|
[710] | 4037 | if (0)
|
---|
| 4038 | {
|
---|
| 4039 | minPvs = mMinPvsSize;
|
---|
| 4040 | maxPvs = mMaxPvsSize;
|
---|
| 4041 | }
|
---|
| 4042 | else
|
---|
| 4043 | {
|
---|
[1414] | 4044 | // problem matt: why did I start here from zero?
|
---|
| 4045 | minPvs = 0;
|
---|
[710] | 4046 | maxPvs = mMaxPvsSize;
|
---|
| 4047 | }
|
---|
[720] | 4048 |
|
---|
[710] | 4049 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4050 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4051 |
|
---|
| 4052 | SetValidity(minPvs, maxPvs);
|
---|
| 4053 |
|
---|
[574] | 4054 | // update valid view space according to valid view cells
|
---|
[720] | 4055 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4056 |
|
---|
[720] | 4057 | // area has to be recomputed
|
---|
[574] | 4058 | mTotalAreaValid = false;
|
---|
[517] | 4059 | VssRayContainer postProcessRays;
|
---|
[605] | 4060 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4061 |
|
---|
[517] | 4062 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4063 |
|
---|
[1414] | 4064 | // should maybe be done here to allow merge working
|
---|
| 4065 | // with area or volume and to correct the rendering statistics
|
---|
[719] | 4066 | if (0) FinalizeViewCells(false);
|
---|
[720] | 4067 |
|
---|
[1444] | 4068 | //////////
|
---|
[597] | 4069 | //-- merge the individual view cells
|
---|
| 4070 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4071 |
|
---|
[1444] | 4072 | // refines the merged view cells
|
---|
[720] | 4073 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4074 |
|
---|
[1444] | 4075 |
|
---|
| 4076 | ///////////
|
---|
[660] | 4077 | //-- render simulation after merge + refine
|
---|
[1414] | 4078 |
|
---|
[1415] | 4079 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4080 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4081 | SimulationStatistics ss;
|
---|
| 4082 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4083 | cout << ss << endl;
|
---|
[1414] | 4084 |
|
---|
[600] | 4085 |
|
---|
[1418] | 4086 | ////////////
|
---|
[600] | 4087 | //-- compression
|
---|
[1586] | 4088 | //#if HAS_TO_BE_REDONE
|
---|
[600] | 4089 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4090 | {
|
---|
[1586] | 4091 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4092 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 4093 |
|
---|
[752] | 4094 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 4095 |
|
---|
[1586] | 4096 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4097 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 4098 | }
|
---|
[1586] | 4099 | //#endif
|
---|
[600] | 4100 |
|
---|
[517] | 4101 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4102 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4103 |
|
---|
[574] | 4104 | // recompute view cell list and statistics
|
---|
[520] | 4105 | ResetViewCells();
|
---|
| 4106 |
|
---|
[719] | 4107 | // compute final meshes and volume / area
|
---|
| 4108 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4109 |
|
---|
[508] | 4110 | // write view cells to disc
|
---|
[1486] | 4111 | if (1 && mExportViewCells)
|
---|
[1444] | 4112 | {
|
---|
[840] | 4113 | char filename[100];
|
---|
[1004] | 4114 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 4115 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 4116 | }
|
---|
[517] | 4117 |
|
---|
[503] | 4118 | return 0;
|
---|
[442] | 4119 | }
|
---|
| 4120 |
|
---|
[490] | 4121 |
|
---|
[442] | 4122 | int VspBspViewCellsManager::GetType() const
|
---|
| 4123 | {
|
---|
| 4124 | return VSP_BSP;
|
---|
| 4125 | }
|
---|
| 4126 |
|
---|
| 4127 |
|
---|
[650] | 4128 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4129 | {
|
---|
[752] | 4130 | // terminate recursion
|
---|
[650] | 4131 | if (root->IsLeaf())
|
---|
| 4132 | {
|
---|
[752] | 4133 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4134 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4135 | return leaf->GetViewCell();
|
---|
[650] | 4136 | }
|
---|
| 4137 |
|
---|
[752] | 4138 |
|
---|
[650] | 4139 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4140 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4141 |
|
---|
[752] | 4142 | // evaluate merge cost for priority traversal
|
---|
[650] | 4143 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4144 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4145 |
|
---|
[650] | 4146 | float volume = 0;
|
---|
| 4147 |
|
---|
| 4148 | BspNode *front = interior->GetFront();
|
---|
| 4149 | BspNode *back = interior->GetBack();
|
---|
[649] | 4150 |
|
---|
[752] | 4151 |
|
---|
| 4152 | ObjectPvs frontPvs, backPvs;
|
---|
| 4153 |
|
---|
| 4154 | //-- recursivly compute child hierarchies
|
---|
[650] | 4155 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4156 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4157 |
|
---|
[752] | 4158 |
|
---|
| 4159 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4160 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4161 |
|
---|
| 4162 | volume += backVc->GetVolume();
|
---|
| 4163 | volume += frontVc->GetVolume();
|
---|
| 4164 |
|
---|
| 4165 | viewCellInterior->SetVolume(volume);
|
---|
| 4166 |
|
---|
| 4167 | return viewCellInterior;
|
---|
[609] | 4168 | }
|
---|
| 4169 |
|
---|
| 4170 |
|
---|
[490] | 4171 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4172 | {
|
---|
| 4173 | if (!ViewCellsConstructed())
|
---|
| 4174 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4175 |
|
---|
| 4176 | // TODO: set reasonable limit
|
---|
| 4177 | const int limit = 20;
|
---|
| 4178 |
|
---|
| 4179 | for (int i = 0; i < limit; ++ i)
|
---|
| 4180 | {
|
---|
[542] | 4181 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4182 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4183 | {
|
---|
| 4184 | return true;
|
---|
| 4185 | }
|
---|
| 4186 | }
|
---|
[997] | 4187 |
|
---|
[490] | 4188 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4189 | return false;
|
---|
| 4190 | }
|
---|
| 4191 |
|
---|
| 4192 |
|
---|
| 4193 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4194 | {
|
---|
[1551] | 4195 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4196 | // validy update in preprocessor for all managers)
|
---|
| 4197 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4198 |
|
---|
[1551] | 4199 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4200 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4201 | }
|
---|
| 4202 |
|
---|
| 4203 |
|
---|
[442] | 4204 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4205 | const VssRayContainer &sampleRays)
|
---|
[442] | 4206 | {
|
---|
| 4207 | if (!ViewCellsConstructed())
|
---|
| 4208 | return;
|
---|
| 4209 |
|
---|
[485] | 4210 | VssRayContainer visRays;
|
---|
| 4211 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4212 |
|
---|
[1551] | 4213 | if (1)
|
---|
[1047] | 4214 | {
|
---|
[1416] | 4215 | //////////////////
|
---|
| 4216 | //-- export final view cell partition
|
---|
| 4217 |
|
---|
[1020] | 4218 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4219 |
|
---|
[442] | 4220 | if (exporter)
|
---|
| 4221 | {
|
---|
[580] | 4222 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4223 | if (0)
|
---|
[1563] | 4224 | { // export view space box
|
---|
[542] | 4225 | exporter->SetWireframe();
|
---|
| 4226 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4227 | exporter->SetFilled();
|
---|
| 4228 | }
|
---|
| 4229 |
|
---|
[1052] | 4230 | Material m;
|
---|
| 4231 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4232 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4233 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4234 |
|
---|
| 4235 | exporter->SetForcedMaterial(m);
|
---|
| 4236 |
|
---|
[1563] | 4237 | if (1 && mExportGeometry)
|
---|
[542] | 4238 | {
|
---|
[485] | 4239 | exporter->ExportGeometry(objects);
|
---|
[542] | 4240 | }
|
---|
[489] | 4241 |
|
---|
[1047] | 4242 | if (0 && mExportRays)
|
---|
[489] | 4243 | {
|
---|
[1052] | 4244 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4245 | }
|
---|
[1416] | 4246 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[1020] | 4247 |
|
---|
[442] | 4248 | delete exporter;
|
---|
[580] | 4249 | cout << "finished" << endl;
|
---|
[442] | 4250 | }
|
---|
[557] | 4251 | }
|
---|
[503] | 4252 |
|
---|
[1551] | 4253 | ////////////////
|
---|
[442] | 4254 | //-- visualization of the BSP splits
|
---|
[1551] | 4255 |
|
---|
[442] | 4256 | bool exportSplits = false;
|
---|
[1004] | 4257 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4258 |
|
---|
[442] | 4259 | if (exportSplits)
|
---|
| 4260 | {
|
---|
| 4261 | cout << "exporting splits ... ";
|
---|
[485] | 4262 | ExportSplits(objects, visRays);
|
---|
[442] | 4263 | cout << "finished" << endl;
|
---|
| 4264 | }
|
---|
| 4265 |
|
---|
[1551] | 4266 | ////////
|
---|
[542] | 4267 | //-- export single view cells
|
---|
[1570] | 4268 |
|
---|
| 4269 | int leafOut;
|
---|
| 4270 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4271 | const int raysOut = 100;
|
---|
| 4272 |
|
---|
| 4273 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4274 | }
|
---|
| 4275 |
|
---|
[503] | 4276 |
|
---|
[485] | 4277 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4278 | const VssRayContainer &rays)
|
---|
[442] | 4279 | {
|
---|
| 4280 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4281 |
|
---|
[503] | 4282 | if (exporter)
|
---|
| 4283 | {
|
---|
| 4284 | Material m;
|
---|
[442] | 4285 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4286 | exporter->SetForcedMaterial(m);
|
---|
| 4287 | exporter->SetWireframe();
|
---|
[503] | 4288 |
|
---|
[448] | 4289 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4290 |
|
---|
| 4291 | // take forced material, else big scenes cannot be viewed
|
---|
| 4292 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4293 | exporter->SetForcedMaterial(m);
|
---|
| 4294 | exporter->SetFilled();
|
---|
| 4295 |
|
---|
| 4296 | exporter->ResetForcedMaterial();
|
---|
[503] | 4297 |
|
---|
[442] | 4298 | // export rays
|
---|
[485] | 4299 | if (mExportRays)
|
---|
[1545] | 4300 | {
|
---|
[485] | 4301 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4302 | }
|
---|
[503] | 4303 |
|
---|
[485] | 4304 | if (mExportGeometry)
|
---|
[1545] | 4305 | {
|
---|
[442] | 4306 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4307 | }
|
---|
[442] | 4308 | delete exporter;
|
---|
| 4309 | }
|
---|
| 4310 | }
|
---|
| 4311 |
|
---|
[503] | 4312 |
|
---|
[1570] | 4313 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4314 | const int maxViewCells,
|
---|
| 4315 | const bool sortViewCells,
|
---|
| 4316 | const bool exportPvs,
|
---|
| 4317 | const bool exportRays,
|
---|
| 4318 | const int maxRays,
|
---|
| 4319 | const string prefix,
|
---|
| 4320 | VssRayContainer *visRays)
|
---|
| 4321 | {
|
---|
[694] | 4322 | if (sortViewCells)
|
---|
[801] | 4323 | {
|
---|
[1570] | 4324 | // sort view cells to visualize the largest view cells
|
---|
[801] | 4325 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4326 | }
|
---|
| 4327 |
|
---|
[1566] | 4328 | //////////
|
---|
[1570] | 4329 | //-- some view cells for output
|
---|
[483] | 4330 |
|
---|
[1570] | 4331 | ViewCell::NewMail();
|
---|
| 4332 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 4333 |
|
---|
[478] | 4334 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4335 | {
|
---|
[478] | 4336 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4337 |
|
---|
[1570] | 4338 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 4339 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 4340 |
|
---|
[1570] | 4341 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 4342 | continue;
|
---|
| 4343 |
|
---|
| 4344 | vc->Mail();
|
---|
| 4345 |
|
---|
[801] | 4346 | ObjectPvs pvs;
|
---|
| 4347 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4348 |
|
---|
[1570] | 4349 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 4350 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4351 |
|
---|
[1571] | 4352 | const int pvsSize = (int)mViewCellsTree->GetPvsSize(vc);
|
---|
| 4353 | cout << "view cell " << vc->GetId() << ": pvs size=" << pvsSize << endl;
|
---|
[587] | 4354 |
|
---|
[1570] | 4355 | if (exportRays)
|
---|
[442] | 4356 | {
|
---|
[1566] | 4357 | ////////////
|
---|
| 4358 | //-- export rays piercing this view cell
|
---|
| 4359 |
|
---|
| 4360 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 4361 | VssRayContainer vcRays;
|
---|
| 4362 | VssRayContainer collectRays;
|
---|
[639] | 4363 |
|
---|
[1566] | 4364 | // collect initial view cells
|
---|
[1551] | 4365 | ViewCellContainer leaves;
|
---|
| 4366 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 4367 |
|
---|
[1551] | 4368 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 4369 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 4370 | {
|
---|
[1551] | 4371 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 4372 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4373 |
|
---|
[1551] | 4374 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4375 | {
|
---|
[1551] | 4376 | collectRays.push_back(*rit);
|
---|
[639] | 4377 | }
|
---|
[1551] | 4378 | }
|
---|
[801] | 4379 |
|
---|
[1570] | 4380 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 4381 |
|
---|
[1566] | 4382 | // prepare some rays for output
|
---|
[1551] | 4383 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4384 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4385 | {
|
---|
[1566] | 4386 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 4387 |
|
---|
| 4388 | if (p < raysOut)
|
---|
[1566] | 4389 | {
|
---|
[1551] | 4390 | vcRays.push_back(*rit);
|
---|
[1566] | 4391 | }
|
---|
[639] | 4392 | }
|
---|
| 4393 |
|
---|
[1551] | 4394 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4395 | }
|
---|
[639] | 4396 |
|
---|
[1416] | 4397 | ////////////////
|
---|
[1020] | 4398 | //-- export view cell geometry
|
---|
[1416] | 4399 |
|
---|
[478] | 4400 | exporter->SetWireframe();
|
---|
[442] | 4401 |
|
---|
[478] | 4402 | Material m;//= RandomMaterial();
|
---|
| 4403 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4404 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4405 |
|
---|
[1416] | 4406 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4407 | exporter->SetFilled();
|
---|
[503] | 4408 |
|
---|
[1570] | 4409 | if (exportPvs)
|
---|
[574] | 4410 | {
|
---|
[801] | 4411 | Intersectable::NewMail();
|
---|
[1570] | 4412 |
|
---|
[1566] | 4413 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1570] | 4414 | cout << endl;
|
---|
[639] | 4415 | // output PVS of view cell
|
---|
[801] | 4416 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4417 | {
|
---|
| 4418 | Intersectable *intersect = (*oit).first;
|
---|
[1570] | 4419 |
|
---|
[639] | 4420 | if (!intersect->Mailed())
|
---|
| 4421 | {
|
---|
[1570] | 4422 | intersect->Mail();
|
---|
[1571] | 4423 |
|
---|
[643] | 4424 | m = RandomMaterial();
|
---|
| 4425 | exporter->SetForcedMaterial(m);
|
---|
[639] | 4426 | exporter->ExportIntersectable(intersect);
|
---|
| 4427 | }
|
---|
[503] | 4428 | }
|
---|
[1570] | 4429 | cout << endl;
|
---|
[442] | 4430 | }
|
---|
[801] | 4431 |
|
---|
[478] | 4432 | DEL_PTR(exporter);
|
---|
| 4433 | cout << "finished" << endl;
|
---|
[442] | 4434 | }
|
---|
| 4435 | }
|
---|
| 4436 |
|
---|
| 4437 |
|
---|
[1021] | 4438 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4439 | {
|
---|
[1021] | 4440 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4441 |
|
---|
[1021] | 4442 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4443 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4444 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4445 | const Vector3 width = Vector3(w);
|
---|
| 4446 |
|
---|
| 4447 | PrVs testPrVs;
|
---|
| 4448 |
|
---|
| 4449 | if (exporter)
|
---|
| 4450 | {
|
---|
| 4451 | ViewCellContainer viewCells;
|
---|
| 4452 |
|
---|
| 4453 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4454 |
|
---|
[1021] | 4455 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4456 |
|
---|
[1021] | 4457 | exporter->SetWireframe();
|
---|
[482] | 4458 |
|
---|
[1021] | 4459 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4460 | exporter->ExportBox(tbox);
|
---|
| 4461 |
|
---|
| 4462 | exporter->SetFilled();
|
---|
[503] | 4463 |
|
---|
[1021] | 4464 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4465 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4466 |
|
---|
[1021] | 4467 | //exporter->ResetForcedMaterial();
|
---|
| 4468 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4469 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4470 |
|
---|
[1021] | 4471 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4472 | exporter->ExportGeometry(objects);
|
---|
[547] | 4473 |
|
---|
[1021] | 4474 | delete exporter;
|
---|
[482] | 4475 | }
|
---|
[1021] | 4476 | }
|
---|
[482] | 4477 |
|
---|
[547] | 4478 |
|
---|
[1021] | 4479 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4480 | ViewCellContainer &viewCells) const
|
---|
| 4481 | {
|
---|
| 4482 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4483 | }
|
---|
| 4484 |
|
---|
| 4485 |
|
---|
[1021] | 4486 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4487 | const Vector3 &termination,
|
---|
| 4488 | ViewCellContainer &viewcells)
|
---|
| 4489 | {
|
---|
| 4490 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4491 | }
|
---|
| 4492 |
|
---|
| 4493 |
|
---|
[979] | 4494 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4495 | {
|
---|
| 4496 | int numSamples;
|
---|
[1161] | 4497 |
|
---|
[1004] | 4498 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4499 | cout << "samples" << numSamples << endl;
|
---|
| 4500 |
|
---|
| 4501 | vector<RenderCostSample> samples;
|
---|
| 4502 |
|
---|
[1145] | 4503 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4504 | return;
|
---|
| 4505 |
|
---|
[1145] | 4506 | //start the view point queries
|
---|
[979] | 4507 | long startTime = GetTime();
|
---|
| 4508 | cout << "starting sampling of render cost ... ";
|
---|
| 4509 |
|
---|
[1145] | 4510 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4511 |
|
---|
| 4512 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4513 |
|
---|
| 4514 |
|
---|
[1161] | 4515 | // for each sample:
|
---|
| 4516 | // find view cells associated with the samples
|
---|
| 4517 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 4518 | //
|
---|
[1161] | 4519 | // for each view cell:
|
---|
| 4520 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4521 | // export geometry with color coded pvs difference
|
---|
| 4522 |
|
---|
| 4523 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4524 |
|
---|
[979] | 4525 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4526 |
|
---|
[1161] | 4527 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4528 | {
|
---|
| 4529 | RenderCostSample sample = *rit;
|
---|
| 4530 |
|
---|
| 4531 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4532 |
|
---|
[1161] | 4533 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4534 |
|
---|
| 4535 | if (it == sampleMap.end())
|
---|
| 4536 | {
|
---|
| 4537 | sampleMap[vc] = sample.mPvs;
|
---|
| 4538 | }
|
---|
| 4539 | else
|
---|
| 4540 | {
|
---|
| 4541 | (*it).second.Merge(sample.mPvs);
|
---|
| 4542 | }
|
---|
| 4543 | }
|
---|
| 4544 |
|
---|
| 4545 | // visualize the view cells
|
---|
| 4546 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4547 |
|
---|
| 4548 | Material m;//= RandomMaterial();
|
---|
| 4549 |
|
---|
| 4550 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4551 | {
|
---|
| 4552 | ViewCell *vc = (*vit).first;
|
---|
| 4553 |
|
---|
| 4554 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4555 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4556 |
|
---|
[1168] | 4557 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4558 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4559 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 4560 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 4561 |
|
---|
[1415] | 4562 | /* // counting the pvss
|
---|
| 4563 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4564 | {
|
---|
| 4565 | RenderCostSample sample = *rit;
|
---|
| 4566 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 4567 |
|
---|
[1415] | 4568 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4569 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 4570 |
|
---|
[1415] | 4571 | DEL_PTR(hMesh);
|
---|
| 4572 | }
|
---|
| 4573 | */
|
---|
[979] | 4574 | }
|
---|
| 4575 | }
|
---|
| 4576 |
|
---|
| 4577 |
|
---|
[580] | 4578 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 4579 | ViewCell *vc,
|
---|
| 4580 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4581 | const AxisAlignedPlane *clipPlane
|
---|
| 4582 | ) const
|
---|
[482] | 4583 | {
|
---|
[660] | 4584 | if (clipPlane)
|
---|
[591] | 4585 | {
|
---|
[1047] | 4586 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4587 |
|
---|
[591] | 4588 | ViewCellContainer leaves;
|
---|
| 4589 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4590 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4591 |
|
---|
| 4592 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4593 | {
|
---|
| 4594 | BspNodeGeometry geom;
|
---|
| 4595 | BspNodeGeometry front;
|
---|
| 4596 | BspNodeGeometry back;
|
---|
| 4597 |
|
---|
[1551] | 4598 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 4599 |
|
---|
[1052] | 4600 | const float eps = 0.0001f;
|
---|
[1047] | 4601 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4602 |
|
---|
[710] | 4603 | if (cf == -1)
|
---|
[682] | 4604 | {
|
---|
| 4605 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4606 | }
|
---|
[710] | 4607 | else if (cf == 0)
|
---|
[684] | 4608 | {
|
---|
[682] | 4609 | geom.SplitGeometry(front,
|
---|
| 4610 | back,
|
---|
[1047] | 4611 | plane,
|
---|
[682] | 4612 | mViewSpaceBox,
|
---|
[710] | 4613 | eps);
|
---|
[801] | 4614 |
|
---|
[683] | 4615 | if (back.Valid())
|
---|
| 4616 | {
|
---|
[682] | 4617 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4618 | }
|
---|
[684] | 4619 | }
|
---|
[591] | 4620 | }
|
---|
| 4621 | }
|
---|
| 4622 | else
|
---|
| 4623 | {
|
---|
[801] | 4624 | // export mesh if available
|
---|
[1001] | 4625 | // TODO: some bug here?
|
---|
[1563] | 4626 | if (1 && vc->GetMesh())
|
---|
[801] | 4627 | {
|
---|
| 4628 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4629 | }
|
---|
| 4630 | else
|
---|
[1001] | 4631 | {
|
---|
[801] | 4632 | BspNodeGeometry geom;
|
---|
| 4633 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4634 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4635 | }
|
---|
[591] | 4636 | }
|
---|
[482] | 4637 | }
|
---|
| 4638 |
|
---|
| 4639 |
|
---|
| 4640 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4641 | {
|
---|
[580] | 4642 | ViewCellContainer leaves;
|
---|
| 4643 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4644 |
|
---|
| 4645 | int maxDist = 0;
|
---|
[580] | 4646 |
|
---|
[482] | 4647 | // compute max height difference
|
---|
[580] | 4648 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4649 | {
|
---|
[580] | 4650 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4651 | {
|
---|
[1551] | 4652 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 4653 |
|
---|
[1001] | 4654 | if (i != j)
|
---|
| 4655 | {
|
---|
[1551] | 4656 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 4657 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 4658 |
|
---|
| 4659 | if (dist > maxDist)
|
---|
| 4660 | maxDist = dist;
|
---|
| 4661 | }
|
---|
[482] | 4662 | }
|
---|
| 4663 | }
|
---|
[580] | 4664 |
|
---|
[492] | 4665 | return maxDist;
|
---|
| 4666 | }
|
---|
[482] | 4667 |
|
---|
[492] | 4668 |
|
---|
[879] | 4669 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4670 | {
|
---|
[1021] | 4671 | if (!ViewCellsConstructed())
|
---|
[508] | 4672 | return NULL;
|
---|
[572] | 4673 |
|
---|
| 4674 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4675 | return NULL;
|
---|
| 4676 |
|
---|
[879] | 4677 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4678 | }
|
---|
[503] | 4679 |
|
---|
| 4680 |
|
---|
| 4681 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4682 | {
|
---|
| 4683 | BspNodeGeometry geom;
|
---|
[590] | 4684 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4685 |
|
---|
[1001] | 4686 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4687 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4688 |
|
---|
[503] | 4689 | vc->SetMesh(mesh);
|
---|
| 4690 | }
|
---|
[508] | 4691 |
|
---|
| 4692 |
|
---|
[532] | 4693 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4694 | {
|
---|
[535] | 4695 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4696 | }
|
---|
[551] | 4697 |
|
---|
| 4698 |
|
---|
[587] | 4699 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4700 | const bool createMesh)
|
---|
[551] | 4701 | {
|
---|
| 4702 | float area = 0;
|
---|
| 4703 | float volume = 0;
|
---|
| 4704 |
|
---|
[580] | 4705 | ViewCellContainer leaves;
|
---|
[582] | 4706 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4707 |
|
---|
| 4708 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4709 |
|
---|
[693] | 4710 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4711 | {
|
---|
| 4712 | BspNodeGeometry geom;
|
---|
[1551] | 4713 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 4714 |
|
---|
[719] | 4715 | const float lVol = geom.GetVolume();
|
---|
| 4716 | const float lArea = geom.GetArea();
|
---|
[693] | 4717 |
|
---|
| 4718 | area += lArea;
|
---|
| 4719 | volume += lVol;
|
---|
| 4720 |
|
---|
[1616] | 4721 | if (createMesh)
|
---|
| 4722 | CreateMesh(*it);
|
---|
[551] | 4723 | }
|
---|
| 4724 |
|
---|
| 4725 | viewCell->SetVolume(volume);
|
---|
| 4726 | viewCell->SetArea(area);
|
---|
[563] | 4727 | }
|
---|
[575] | 4728 |
|
---|
| 4729 |
|
---|
[693] | 4730 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4731 | {
|
---|
| 4732 | ViewCellContainer leaves;
|
---|
| 4733 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4734 |
|
---|
| 4735 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4736 |
|
---|
| 4737 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4738 | float subdivVol = 0;
|
---|
| 4739 | float newVol = 0;
|
---|
| 4740 |
|
---|
| 4741 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4742 | {
|
---|
| 4743 | BspNodeGeometry geom;
|
---|
[1551] | 4744 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 4745 |
|
---|
| 4746 | const float lVol = geom.GetVolume();
|
---|
| 4747 |
|
---|
| 4748 | newVol += lVol;
|
---|
| 4749 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4750 |
|
---|
[704] | 4751 | float thres = 0.9f;
|
---|
[697] | 4752 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4753 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4754 | }
|
---|
| 4755 |
|
---|
| 4756 | Debug << "exact volume: " << vol << endl;
|
---|
| 4757 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4758 | Debug << "new volume: " << newVol << endl;
|
---|
| 4759 | }
|
---|
| 4760 |
|
---|
| 4761 |
|
---|
[577] | 4762 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4763 | {
|
---|
| 4764 | // TODO: do I still need this here?
|
---|
[590] | 4765 | if (0)
|
---|
[693] | 4766 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4767 | }
|
---|
[575] | 4768 |
|
---|
[1021] | 4769 |
|
---|
| 4770 |
|
---|
| 4771 | /**************************************************************************/
|
---|
[1047] | 4772 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4773 | /**************************************************************************/
|
---|
| 4774 |
|
---|
| 4775 |
|
---|
[1278] | 4776 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 4777 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 4778 | {
|
---|
[1640] | 4779 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
[1106] | 4780 |
|
---|
[1278] | 4781 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 4782 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 4783 | }
|
---|
[859] | 4784 |
|
---|
| 4785 |
|
---|
[1021] | 4786 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4787 | {
|
---|
| 4788 | }
|
---|
| 4789 |
|
---|
| 4790 |
|
---|
| 4791 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4792 | {
|
---|
| 4793 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4794 | }
|
---|
| 4795 |
|
---|
| 4796 |
|
---|
| 4797 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4798 | {
|
---|
| 4799 | // view cells tree constructed
|
---|
| 4800 | if (!ViewCellsTreeConstructed())
|
---|
| 4801 | {
|
---|
[1278] | 4802 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 4803 | }
|
---|
| 4804 | else
|
---|
| 4805 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4806 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4807 | }
|
---|
| 4808 | }
|
---|
| 4809 |
|
---|
| 4810 |
|
---|
| 4811 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4812 | {
|
---|
[1278] | 4813 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 4814 | }
|
---|
| 4815 |
|
---|
| 4816 |
|
---|
| 4817 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4818 | {
|
---|
| 4819 | return new VspViewCell(mesh);
|
---|
| 4820 | }
|
---|
| 4821 |
|
---|
| 4822 |
|
---|
| 4823 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4824 | const VssRayContainer &rays)
|
---|
| 4825 | {
|
---|
| 4826 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4827 |
|
---|
[1074] | 4828 | // skip rest if view cells were already constructed
|
---|
[1021] | 4829 | if (ViewCellsConstructed())
|
---|
| 4830 | return 0;
|
---|
| 4831 |
|
---|
| 4832 | int sampleContributions = 0;
|
---|
| 4833 | VssRayContainer sampleRays;
|
---|
| 4834 |
|
---|
| 4835 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4836 |
|
---|
| 4837 | VssRayContainer constructionRays;
|
---|
| 4838 | VssRayContainer savedRays;
|
---|
| 4839 |
|
---|
| 4840 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4841 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4842 |
|
---|
| 4843 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4844 |
|
---|
[1421] | 4845 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 4846 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4847 |
|
---|
[1293] | 4848 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 4849 |
|
---|
[1576] | 4850 | #if TEST_EVALUATION
|
---|
| 4851 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 4852 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 4853 | {
|
---|
| 4854 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 4855 | }
|
---|
| 4856 | #endif
|
---|
| 4857 |
|
---|
[1545] | 4858 | /////////////////////////
|
---|
[1444] | 4859 | //-- print satistics for subdivision and view cells
|
---|
| 4860 |
|
---|
[1421] | 4861 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 4862 |
|
---|
[1444] | 4863 | ResetViewCells();
|
---|
| 4864 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4865 |
|
---|
[1545] | 4866 | //////////////
|
---|
[1444] | 4867 | //-- recast rest of rays
|
---|
| 4868 |
|
---|
[1286] | 4869 | const long startTime = GetTime();
|
---|
[1021] | 4870 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4871 |
|
---|
| 4872 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4873 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4874 |
|
---|
[1415] | 4875 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 4876 | << " secs" << endl;
|
---|
| 4877 |
|
---|
| 4878 | if (0)
|
---|
[1545] | 4879 | { // real meshes are constructed at this stage
|
---|
[1021] | 4880 | cout << "finalizing view cells ... ";
|
---|
| 4881 | FinalizeViewCells(true);
|
---|
| 4882 | cout << "finished" << endl;
|
---|
| 4883 | }
|
---|
| 4884 |
|
---|
| 4885 | return sampleContributions;
|
---|
| 4886 | }
|
---|
| 4887 |
|
---|
| 4888 |
|
---|
| 4889 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4890 | const VssRayContainer &rays)
|
---|
| 4891 | {
|
---|
| 4892 | if (!ViewCellsConstructed())
|
---|
| 4893 | {
|
---|
| 4894 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 4895 | return 0;
|
---|
| 4896 | }
|
---|
| 4897 |
|
---|
[1418] | 4898 | // if view cells were already constructed before post processing step
|
---|
| 4899 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 4900 | if (mViewCellsFinished)
|
---|
| 4901 | {
|
---|
| 4902 | FinalizeViewCells(true);
|
---|
| 4903 | EvaluateViewCellsStats();
|
---|
| 4904 |
|
---|
| 4905 | return 0;
|
---|
| 4906 | }
|
---|
| 4907 |
|
---|
| 4908 | // check if new view cells turned invalid
|
---|
| 4909 | int minPvs, maxPvs;
|
---|
| 4910 |
|
---|
| 4911 | if (0)
|
---|
| 4912 | {
|
---|
| 4913 | minPvs = mMinPvsSize;
|
---|
| 4914 | maxPvs = mMaxPvsSize;
|
---|
| 4915 | }
|
---|
| 4916 | else
|
---|
| 4917 | {
|
---|
[1414] | 4918 | // problem matt: why did I start here from zero?
|
---|
| 4919 | minPvs = 0;
|
---|
[1021] | 4920 | maxPvs = mMaxPvsSize;
|
---|
| 4921 | }
|
---|
| 4922 |
|
---|
| 4923 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4924 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4925 |
|
---|
| 4926 | SetValidity(minPvs, maxPvs);
|
---|
| 4927 |
|
---|
| 4928 |
|
---|
[1414] | 4929 | // area is not up to date, has to be recomputed
|
---|
[1021] | 4930 | mTotalAreaValid = false;
|
---|
| 4931 | VssRayContainer postProcessRays;
|
---|
| 4932 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4933 |
|
---|
| 4934 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 4935 |
|
---|
| 4936 |
|
---|
| 4937 | // should maybe be done here to allow merge working with area or volume
|
---|
| 4938 | // and to correct the rendering statistics
|
---|
| 4939 | if (0) FinalizeViewCells(false);
|
---|
| 4940 |
|
---|
| 4941 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 4942 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 4943 | mViewCellsTree->SetRoot(root);
|
---|
| 4944 |
|
---|
[1418] | 4945 |
|
---|
| 4946 | //////////////////////////
|
---|
[1414] | 4947 | //-- update pvs in the whole hierarchy
|
---|
[1021] | 4948 | ObjectPvs pvs;
|
---|
| 4949 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 4950 |
|
---|
[1414] | 4951 |
|
---|
[1418] | 4952 | //////////////////////
|
---|
[1021] | 4953 | //-- render simulation after merge + refine
|
---|
[1414] | 4954 |
|
---|
[1415] | 4955 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 4956 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4957 | SimulationStatistics ss;
|
---|
| 4958 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 4959 | cout << ss << endl;
|
---|
[1414] | 4960 |
|
---|
[1486] | 4961 |
|
---|
[1586] | 4962 | ///////////
|
---|
[1021] | 4963 | //-- compression
|
---|
[1262] | 4964 |
|
---|
[1021] | 4965 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4966 | {
|
---|
[1586] | 4967 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 4968 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 4969 |
|
---|
[1021] | 4970 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 4971 |
|
---|
[1586] | 4972 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 4973 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 4974 | }
|
---|
[1021] | 4975 |
|
---|
[1486] | 4976 | /////////////
|
---|
| 4977 | //-- some tasks still to do on the view cells:
|
---|
| 4978 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1021] | 4979 | if (1) FinalizeViewCells(true);
|
---|
| 4980 |
|
---|
[1418] | 4981 | // write out view cells (this moved to preprocessor)
|
---|
[1486] | 4982 | if (1 && mExportViewCells)
|
---|
[1021] | 4983 | {
|
---|
| 4984 | char filename[100];
|
---|
| 4985 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 4986 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 4987 | }
|
---|
| 4988 |
|
---|
| 4989 | return 0;
|
---|
[859] | 4990 | }
|
---|
| 4991 |
|
---|
[1021] | 4992 |
|
---|
| 4993 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 4994 | {
|
---|
[1021] | 4995 | return VSP_OSP;
|
---|
| 4996 | }
|
---|
[859] | 4997 |
|
---|
[1021] | 4998 |
|
---|
| 4999 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5000 | {
|
---|
| 5001 | // terminate recursion
|
---|
| 5002 | if (root->IsLeaf())
|
---|
| 5003 | {
|
---|
| 5004 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5005 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5006 | return leaf->GetViewCell();
|
---|
| 5007 | }
|
---|
| 5008 |
|
---|
| 5009 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5010 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5011 |
|
---|
| 5012 | // evaluate merge cost for priority traversal
|
---|
| 5013 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 5014 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5015 |
|
---|
| 5016 | float volume = 0;
|
---|
| 5017 |
|
---|
| 5018 | VspNode *front = interior->GetFront();
|
---|
| 5019 | VspNode *back = interior->GetBack();
|
---|
| 5020 |
|
---|
| 5021 | ObjectPvs frontPvs, backPvs;
|
---|
| 5022 |
|
---|
[1545] | 5023 | /////////
|
---|
[1021] | 5024 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5025 |
|
---|
[1021] | 5026 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5027 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5028 |
|
---|
| 5029 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5030 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5031 |
|
---|
| 5032 | volume += backVc->GetVolume();
|
---|
| 5033 | volume += frontVc->GetVolume();
|
---|
| 5034 |
|
---|
| 5035 | viewCellInterior->SetVolume(volume);
|
---|
| 5036 |
|
---|
| 5037 | return viewCellInterior;
|
---|
| 5038 | }
|
---|
| 5039 |
|
---|
| 5040 |
|
---|
| 5041 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5042 | {
|
---|
| 5043 | if (!ViewCellsConstructed())
|
---|
| 5044 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5045 |
|
---|
| 5046 | // TODO: set reasonable limit
|
---|
| 5047 | const int limit = 20;
|
---|
| 5048 |
|
---|
| 5049 | for (int i = 0; i < limit; ++ i)
|
---|
| 5050 | {
|
---|
| 5051 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5052 |
|
---|
[1278] | 5053 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5054 | {
|
---|
| 5055 | return true;
|
---|
| 5056 | }
|
---|
[904] | 5057 | }
|
---|
[859] | 5058 |
|
---|
[1021] | 5059 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5060 | return false;
|
---|
[884] | 5061 | }
|
---|
| 5062 |
|
---|
| 5063 |
|
---|
[1027] | 5064 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5065 | ViewCell *vc,
|
---|
[1416] | 5066 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5067 | const AxisAlignedPlane *clipPlane
|
---|
| 5068 | ) const
|
---|
[1027] | 5069 | {
|
---|
| 5070 | ViewCellContainer leaves;
|
---|
| 5071 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5072 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5073 |
|
---|
[1047] | 5074 | Plane3 plane;
|
---|
| 5075 | if (clipPlane)
|
---|
[1418] | 5076 | {
|
---|
| 5077 | // arbitrary plane definition
|
---|
[1047] | 5078 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5079 | }
|
---|
[1047] | 5080 |
|
---|
[1027] | 5081 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5082 | {
|
---|
| 5083 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5084 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5085 |
|
---|
[1416] | 5086 | const AxisAlignedBox3 box =
|
---|
[1551] | 5087 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5088 |
|
---|
[1418] | 5089 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5090 | continue;
|
---|
| 5091 |
|
---|
[1047] | 5092 | if (clipPlane)
|
---|
| 5093 | {
|
---|
| 5094 | if (box.Side(plane) == -1)
|
---|
[1144] | 5095 | {
|
---|
[1047] | 5096 | exporter->ExportBox(box);
|
---|
[1144] | 5097 | }
|
---|
[1047] | 5098 | else if (box.Side(plane) == 0)
|
---|
| 5099 | {
|
---|
[1418] | 5100 | // intersection
|
---|
[1047] | 5101 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5102 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5103 | exporter->ExportBox(bbox);
|
---|
| 5104 | }
|
---|
| 5105 | }
|
---|
| 5106 | else
|
---|
| 5107 | {
|
---|
[1027] | 5108 | exporter->ExportBox(box);
|
---|
[1047] | 5109 | }
|
---|
[1027] | 5110 | }
|
---|
| 5111 | }
|
---|
| 5112 |
|
---|
| 5113 |
|
---|
[1021] | 5114 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5115 | {
|
---|
| 5116 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5117 | // validy update in preprocessor for all managers)
|
---|
| 5118 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5119 |
|
---|
[1021] | 5120 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5121 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5122 | }
|
---|
| 5123 |
|
---|
| 5124 |
|
---|
| 5125 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5126 | const VssRayContainer &sampleRays)
|
---|
[859] | 5127 | {
|
---|
[997] | 5128 | if (!ViewCellsConstructed())
|
---|
| 5129 | return;
|
---|
[1027] | 5130 |
|
---|
[1021] | 5131 | VssRayContainer visRays;
|
---|
| 5132 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5133 |
|
---|
[1633] | 5134 | ////////////
|
---|
| 5135 | //-- export final view cells
|
---|
[1106] | 5136 |
|
---|
[1633] | 5137 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5138 |
|
---|
| 5139 | if (exporter)
|
---|
| 5140 | {
|
---|
[1415] | 5141 | // hack color code (show pvs size)
|
---|
[1021] | 5142 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5143 | mColorCode = 0;
|
---|
[859] | 5144 |
|
---|
[1633] | 5145 | const long starttime = GetTime();
|
---|
| 5146 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[1420] | 5147 |
|
---|
[1633] | 5148 | // matt: hack for clamping scene
|
---|
| 5149 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
| 5150 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
| 5151 | if (CLAMP_TO_BOX)
|
---|
| 5152 | {
|
---|
| 5153 | exporter->SetWireframe();
|
---|
| 5154 | exporter->ExportBox(bbox);
|
---|
| 5155 | exporter->SetFilled();
|
---|
[1021] | 5156 | }
|
---|
| 5157 |
|
---|
[1633] | 5158 | if (0 && mExportGeometry)
|
---|
| 5159 | {
|
---|
| 5160 | exporter->ExportGeometry(objects, true, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5161 | }
|
---|
| 5162 |
|
---|
| 5163 | if (1 && mExportRays)
|
---|
| 5164 | {
|
---|
| 5165 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5166 | }
|
---|
| 5167 |
|
---|
| 5168 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
| 5169 | ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, GetClipPlane());
|
---|
| 5170 |
|
---|
| 5171 | delete exporter;
|
---|
| 5172 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5173 | mColorCode = savedColorCode;
|
---|
| 5174 | }
|
---|
| 5175 |
|
---|
[1633] | 5176 | // export final object partition
|
---|
| 5177 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5178 |
|
---|
| 5179 | if (exporter)
|
---|
[1287] | 5180 | {
|
---|
[1633] | 5181 | const long starttime = GetTime();
|
---|
[1287] | 5182 |
|
---|
[1633] | 5183 | // matt: hack for making visualization smaller in size
|
---|
| 5184 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
| 5185 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1415] | 5186 |
|
---|
[1633] | 5187 | cout << "exporting object space hierarchy ... ";
|
---|
| 5188 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5189 |
|
---|
| 5190 | delete exporter;
|
---|
| 5191 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5192 | }
|
---|
[1633] | 5193 |
|
---|
[1121] | 5194 |
|
---|
[1633] | 5195 | // visualization of the view cells
|
---|
| 5196 | if (0) ExportMergedViewCells(objects);
|
---|
| 5197 |
|
---|
[1570] | 5198 | // export some view cell
|
---|
[1021] | 5199 | int leafOut;
|
---|
| 5200 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1570] | 5201 | const int raysOut = 100;
|
---|
[580] | 5202 |
|
---|
[1570] | 5203 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
| 5204 | }
|
---|
[1021] | 5205 |
|
---|
| 5206 |
|
---|
[1570] | 5207 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5208 | const int maxViewCells,
|
---|
| 5209 | const bool sortViewCells,
|
---|
| 5210 | const bool exportPvs,
|
---|
| 5211 | const bool exportRays,
|
---|
| 5212 | const int maxRays,
|
---|
| 5213 | const string prefix,
|
---|
| 5214 | VssRayContainer *visRays)
|
---|
| 5215 | {
|
---|
| 5216 | if (sortViewCells)
|
---|
[697] | 5217 | {
|
---|
[1415] | 5218 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1021] | 5219 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5220 | }
|
---|
| 5221 |
|
---|
[1570] | 5222 | ViewCell::NewMail();
|
---|
| 5223 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 5224 |
|
---|
[1570] | 5225 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 5226 |
|
---|
[1021] | 5227 | for (int i = 0; i < limit; ++ i)
|
---|
| 5228 | {
|
---|
| 5229 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5230 |
|
---|
| 5231 | // largest view cell pvs first of random view cell
|
---|
[1570] | 5232 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 5233 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5234 |
|
---|
[1570] | 5235 | if (vc->Mailed()) // already used
|
---|
| 5236 | continue;
|
---|
| 5237 |
|
---|
| 5238 | vc->Mail();
|
---|
| 5239 |
|
---|
[1021] | 5240 | ObjectPvs pvs;
|
---|
| 5241 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5242 |
|
---|
[1570] | 5243 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 5244 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5245 |
|
---|
[1570] | 5246 | cout << "view cell " << vc->GetId() << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[1021] | 5247 |
|
---|
[1570] | 5248 | if (exportPvs)
|
---|
| 5249 | {
|
---|
| 5250 | Material m;
|
---|
[1418] | 5251 |
|
---|
[1570] | 5252 | Intersectable::NewMail();
|
---|
| 5253 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
| 5254 |
|
---|
| 5255 | // output PVS of view cell
|
---|
| 5256 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 5257 | {
|
---|
| 5258 | Intersectable *intersect = (*oit).first;
|
---|
| 5259 | if (!intersect->Mailed())
|
---|
| 5260 | {
|
---|
| 5261 | m = RandomMaterial();
|
---|
| 5262 | exporter->SetForcedMaterial(m);
|
---|
| 5263 |
|
---|
| 5264 | exporter->ExportIntersectable(intersect);
|
---|
| 5265 | intersect->Mail();
|
---|
| 5266 | }
|
---|
| 5267 | }
|
---|
| 5268 | }
|
---|
| 5269 |
|
---|
| 5270 | if (exportRays)
|
---|
[1021] | 5271 | {
|
---|
[1570] | 5272 | ////////////
|
---|
| 5273 | //-- export the sample rays
|
---|
| 5274 |
|
---|
[1021] | 5275 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 5276 | VssRayContainer vcRays;
|
---|
| 5277 | VssRayContainer collectRays;
|
---|
[1021] | 5278 |
|
---|
[1570] | 5279 | // collect intial view cells
|
---|
| 5280 | ViewCellContainer leaves;
|
---|
| 5281 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 5282 |
|
---|
[1570] | 5283 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 5284 |
|
---|
[1570] | 5285 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5286 | {
|
---|
| 5287 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5288 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5289 |
|
---|
| 5290 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 5291 | {
|
---|
[1570] | 5292 | collectRays.push_back(*rit);
|
---|
[1021] | 5293 | }
|
---|
[1570] | 5294 | }
|
---|
[1021] | 5295 |
|
---|
[1570] | 5296 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 5297 |
|
---|
[1570] | 5298 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 5299 |
|
---|
[1570] | 5300 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5301 | {
|
---|
| 5302 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5303 |
|
---|
| 5304 | if (p < raysOut)
|
---|
| 5305 | vcRays.push_back(*rit);
|
---|
[1021] | 5306 | }
|
---|
[1570] | 5307 |
|
---|
| 5308 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 5309 | }
|
---|
[1570] | 5310 |
|
---|
| 5311 |
|
---|
[1415] | 5312 | /////////////////
|
---|
[1021] | 5313 | //-- export view cell geometry
|
---|
[1121] | 5314 |
|
---|
[697] | 5315 | exporter->SetWireframe();
|
---|
| 5316 |
|
---|
[1416] | 5317 | Material m;
|
---|
[1021] | 5318 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5319 | exporter->SetForcedMaterial(m);
|
---|
| 5320 |
|
---|
[1416] | 5321 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5322 | exporter->SetFilled();
|
---|
| 5323 |
|
---|
[1021] | 5324 | DEL_PTR(exporter);
|
---|
| 5325 | cout << "finished" << endl;
|
---|
[697] | 5326 | }
|
---|
[1021] | 5327 |
|
---|
[1570] | 5328 | cout << endl;
|
---|
[697] | 5329 | }
|
---|
| 5330 |
|
---|
| 5331 |
|
---|
[1021] | 5332 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5333 | ViewCellContainer &viewCells) const
|
---|
| 5334 | {
|
---|
[1278] | 5335 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5336 | }
|
---|
[580] | 5337 |
|
---|
[1021] | 5338 |
|
---|
| 5339 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5340 | const Vector3 &termination,
|
---|
| 5341 | ViewCellContainer &viewcells)
|
---|
| 5342 | {
|
---|
[1278] | 5343 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5344 | }
|
---|
| 5345 |
|
---|
| 5346 |
|
---|
| 5347 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5348 | const bool exportPvs,
|
---|
| 5349 | const ObjectContainer &objects)
|
---|
| 5350 | {
|
---|
| 5351 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5352 | return false;
|
---|
| 5353 |
|
---|
[1415] | 5354 | const long starttime = GetTime();
|
---|
[1021] | 5355 | cout << "exporting view cells to xml ... ";
|
---|
| 5356 |
|
---|
[1201] | 5357 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5358 |
|
---|
| 5359 | // for output we need unique ids for each view cell
|
---|
| 5360 | CreateUniqueViewCellIds();
|
---|
| 5361 |
|
---|
| 5362 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5363 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5364 |
|
---|
[1580] | 5365 | if (exportPvs)
|
---|
| 5366 | {
|
---|
| 5367 | ///////////////
|
---|
| 5368 | //-- export bounding boxes
|
---|
| 5369 | //-- The bounding boxes are used to identify
|
---|
| 5370 | //-- the objects in the rendering engine
|
---|
[1614] | 5371 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 5372 | }
|
---|
[1021] | 5373 |
|
---|
[1415] | 5374 | //////////////////////////
|
---|
[1021] | 5375 | //-- export the view cells and the pvs
|
---|
| 5376 |
|
---|
| 5377 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5378 |
|
---|
| 5379 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5380 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5381 | stream << "</ViewCells>" << endl;
|
---|
| 5382 |
|
---|
[1415] | 5383 | //////////////////////
|
---|
[1201] | 5384 | //-- export the view space hierarchy
|
---|
[1021] | 5385 |
|
---|
[1262] | 5386 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5387 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5388 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5389 |
|
---|
[1278] | 5390 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5391 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5392 |
|
---|
[1415] | 5393 | //////////////////////
|
---|
[1201] | 5394 | //-- export the object space partition
|
---|
| 5395 |
|
---|
[1278] | 5396 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5397 |
|
---|
[1201] | 5398 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5399 | stream.close();
|
---|
[1201] | 5400 |
|
---|
[1415] | 5401 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5402 | return true;
|
---|
| 5403 | }
|
---|
| 5404 |
|
---|
| 5405 |
|
---|
| 5406 |
|
---|
[1027] | 5407 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5408 | const bool active) const
|
---|
[1021] | 5409 | {
|
---|
| 5410 | if (!ViewCellsConstructed())
|
---|
| 5411 | return NULL;
|
---|
[1588] | 5412 |
|
---|
[1021] | 5413 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5414 | return NULL;
|
---|
[1588] | 5415 |
|
---|
[1278] | 5416 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5417 | }
|
---|
| 5418 |
|
---|
| 5419 |
|
---|
| 5420 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5421 | {
|
---|
| 5422 | // matt: TODO
|
---|
| 5423 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5424 |
|
---|
| 5425 | ViewCellContainer leaves;
|
---|
| 5426 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5427 |
|
---|
| 5428 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5429 |
|
---|
| 5430 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5431 | {
|
---|
[1551] | 5432 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 5433 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5434 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5435 | }
|
---|
| 5436 |
|
---|
[1021] | 5437 | vc->SetMesh(mesh);
|
---|
| 5438 | }
|
---|
| 5439 |
|
---|
| 5440 |
|
---|
| 5441 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5442 | {
|
---|
| 5443 | // matt: TODO
|
---|
| 5444 | return 0;
|
---|
| 5445 | }
|
---|
| 5446 |
|
---|
| 5447 |
|
---|
[1667] | 5448 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
[1021] | 5449 | {
|
---|
| 5450 | float area = 0;
|
---|
| 5451 | float volume = 0;
|
---|
| 5452 |
|
---|
| 5453 | ViewCellContainer leaves;
|
---|
| 5454 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5455 |
|
---|
| 5456 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5457 |
|
---|
| 5458 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5459 | {
|
---|
[1551] | 5460 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 5461 |
|
---|
[1278] | 5462 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 5463 |
|
---|
[1027] | 5464 | const float lVol = box.GetVolume();
|
---|
| 5465 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5466 |
|
---|
| 5467 | area += lArea;
|
---|
| 5468 | volume += lVol;
|
---|
| 5469 |
|
---|
| 5470 | CreateMesh(*it);
|
---|
[580] | 5471 | }
|
---|
| 5472 |
|
---|
[1021] | 5473 | viewCell->SetVolume(volume);
|
---|
| 5474 | viewCell->SetArea(area);
|
---|
[580] | 5475 | }
|
---|
[1021] | 5476 |
|
---|
[580] | 5477 |
|
---|
[1159] | 5478 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5479 | const bool addRays,
|
---|
| 5480 | const bool storeViewCells)
|
---|
| 5481 | {
|
---|
| 5482 | ViewCellContainer viewcells;
|
---|
| 5483 |
|
---|
| 5484 | ray.mPvsContribution = 0;
|
---|
| 5485 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5486 |
|
---|
| 5487 | static Ray hray;
|
---|
| 5488 | hray.Init(ray);
|
---|
| 5489 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5490 | //Ray hray(ray);
|
---|
| 5491 |
|
---|
| 5492 | float tmin = 0, tmax = 1.0;
|
---|
| 5493 |
|
---|
| 5494 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5495 | return 0;
|
---|
| 5496 |
|
---|
| 5497 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5498 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5499 |
|
---|
[1291] | 5500 | ViewCell::NewMail();
|
---|
| 5501 |
|
---|
[1159] | 5502 | // traverse the view space subdivision
|
---|
| 5503 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5504 |
|
---|
| 5505 | if (storeViewCells)
|
---|
[1291] | 5506 | {
|
---|
| 5507 | // copy viewcells memory efficiently
|
---|
[1159] | 5508 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5509 | ray.mViewCells = viewcells;
|
---|
| 5510 | }
|
---|
| 5511 |
|
---|
| 5512 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5513 |
|
---|
| 5514 | for (; it != viewcells.end(); ++ it)
|
---|
| 5515 | {
|
---|
| 5516 | ViewCell *viewcell = *it;
|
---|
[1666] | 5517 |
|
---|
[1159] | 5518 | if (viewcell->GetValid())
|
---|
[1566] | 5519 | { // if ray not outside of view space
|
---|
[1159] | 5520 | float contribution;
|
---|
| 5521 |
|
---|
| 5522 | if (ray.mTerminationObject)
|
---|
| 5523 | {
|
---|
[1666] | 5524 | // todo: maybe not correct for kd node pvs
|
---|
| 5525 | Intersectable *obj = mHierarchyManager->GetIntersectable(ray, true);
|
---|
| 5526 |
|
---|
| 5527 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 5528 | ray.mPdf,
|
---|
| 5529 | contribution))
|
---|
[1159] | 5530 | {
|
---|
[1666] | 5531 | ++ ray.mPvsContribution;
|
---|
[1159] | 5532 | }
|
---|
[1666] | 5533 |
|
---|
| 5534 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5535 | }
|
---|
[1666] | 5536 |
|
---|
| 5537 | //-- for directional sampling it is important to count only contributions
|
---|
| 5538 | //-- made in one direction!
|
---|
| 5539 | //-- the other contributions of this sample will be counted for the opposite ray!
|
---|
[1166] | 5540 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1159] | 5541 | if (ray.mOriginObject &&
|
---|
| 5542 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
[1666] | 5543 | ray.mPdf,
|
---|
| 5544 | contribution))
|
---|
[1159] | 5545 | {
|
---|
| 5546 | ++ ray.mPvsContribution;
|
---|
[1582] | 5547 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5548 | }
|
---|
| 5549 | #endif
|
---|
| 5550 | }
|
---|
| 5551 | }
|
---|
| 5552 |
|
---|
[1259] | 5553 | if (!addRays)
|
---|
[1566] | 5554 | {
|
---|
[1259] | 5555 | return ray.mRelativePvsContribution;
|
---|
[1566] | 5556 | }
|
---|
[1259] | 5557 |
|
---|
| 5558 | // sampled objects are stored in the pvs
|
---|
| 5559 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 5560 | {
|
---|
[1259] | 5561 | ViewCell *viewCell = *it;
|
---|
[1159] | 5562 |
|
---|
[1259] | 5563 | if (!viewCell->GetValid())
|
---|
| 5564 | break;
|
---|
[1159] | 5565 |
|
---|
[1259] | 5566 | AddSampleToPvs(
|
---|
| 5567 | ray.mTerminationObject,
|
---|
| 5568 | ray.mTermination,
|
---|
| 5569 | viewCell,
|
---|
| 5570 | ray.mPdf,
|
---|
| 5571 | ray.mRelativePvsContribution);
|
---|
| 5572 |
|
---|
[1166] | 5573 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1168] | 5574 |
|
---|
[1259] | 5575 | AddSampleToPvs(
|
---|
| 5576 | ray.mOriginObject,
|
---|
| 5577 | ray.mOrigin,
|
---|
| 5578 | viewCell,
|
---|
| 5579 | ray.mPdf,
|
---|
| 5580 | ray.mRelativePvsContribution);
|
---|
| 5581 | #endif
|
---|
[1159] | 5582 | }
|
---|
| 5583 |
|
---|
| 5584 | return ray.mRelativePvsContribution;
|
---|
| 5585 | }
|
---|
| 5586 |
|
---|
| 5587 |
|
---|
[1259] | 5588 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 5589 | const Vector3 &hitPoint,
|
---|
| 5590 | ViewCell *vc,
|
---|
| 5591 | const float pdf,
|
---|
| 5592 | float &contribution) const
|
---|
| 5593 | {
|
---|
[1486] | 5594 | // The hierarchy manager decides about the type of sample cast
|
---|
[1278] | 5595 | return mHierarchyManager->AddSampleToPvs(obj, hitPoint, vc, pdf, contribution);
|
---|
[1259] | 5596 | }
|
---|
| 5597 |
|
---|
| 5598 |
|
---|
[1021] | 5599 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5600 | {
|
---|
| 5601 | // TODO
|
---|
| 5602 | }
|
---|
[580] | 5603 |
|
---|
[1201] | 5604 |
|
---|
| 5605 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5606 | ObjectContainer *objects,
|
---|
| 5607 | const bool finalizeViewCells,
|
---|
| 5608 | BoundingBoxConverter *bconverter)
|
---|
| 5609 |
|
---|
| 5610 | {
|
---|
| 5611 | ViewCellsManager *vm =
|
---|
| 5612 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 5613 | #if 0
|
---|
| 5614 | // insert scene objects in tree
|
---|
[1201] | 5615 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 5616 | #endif
|
---|
[1201] | 5617 | return vm;
|
---|
| 5618 | }
|
---|
| 5619 |
|
---|
| 5620 |
|
---|
[1666] | 5621 | typedef priority_queue<ViewCell *, vector<ViewCell *>,
|
---|
| 5622 | myless<vector<ViewCell *>::value_type> > ViewCellsQueue;
|
---|
| 5623 |
|
---|
| 5624 | typedef priority_queue<BvhNode *, vector<BvhNode *>,
|
---|
[1679] | 5625 | myless<vector<BvhNode *>::value_type> > BvhQueue;
|
---|
[1666] | 5626 |
|
---|
[1679] | 5627 | typedef priority_queue<VspNode *, vector<VspNode *>,
|
---|
| 5628 | myless<vector<VspNode *>::value_type> > VspQueue;
|
---|
| 5629 |
|
---|
| 5630 | static void UpdateStats(ofstream &stats,
|
---|
| 5631 | const int splits,
|
---|
| 5632 | const float totalRenderCost,
|
---|
| 5633 | const int entriesInPvs,
|
---|
| 5634 | const float memoryCost,
|
---|
| 5635 | const bool vsp)
|
---|
| 5636 | {
|
---|
| 5637 | stats << "#Pass\n" << 0 << endl
|
---|
| 5638 | << "#Splits\n" << splits << endl
|
---|
| 5639 | << "#TotalRenderCost\n" << totalRenderCost << endl
|
---|
| 5640 | << "#TotalEntriesInPvs\n" << entriesInPvs << endl
|
---|
| 5641 | << "#Memory\n" << memoryCost << endl
|
---|
| 5642 | << "#Vsp\n" << (vsp ? 1 : 0) << endl
|
---|
| 5643 | << endl;
|
---|
| 5644 | }
|
---|
| 5645 |
|
---|
| 5646 | /*
|
---|
[1666] | 5647 | void VspOspViewCellsManager::ExportStats(const string &mergeStats)
|
---|
| 5648 | {
|
---|
| 5649 | ofstream stats;
|
---|
| 5650 | stats.open(mergeStats.c_str());
|
---|
| 5651 |
|
---|
[1679] | 5652 | BvhQueue bvhQueue;
|
---|
| 5653 | VspQueue vspQueue;
|
---|
| 5654 | //ViewCellsQueue viewCellsQueue;
|
---|
[1666] | 5655 |
|
---|
[1679] | 5656 | bvhQueue.push(mHierarchyManager->mBvHierarchy->GetRoot());
|
---|
| 5657 | vspQueue.push(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1666] | 5658 |
|
---|
[1679] | 5659 | int numSteps = 1;
|
---|
[1666] | 5660 |
|
---|
| 5661 | const AxisAlignedBox3 box = mViewSpaceBox;
|
---|
| 5662 | const float vol = box.GetVolume();
|
---|
| 5663 |
|
---|
[1679] | 5664 | float totalRenderCost = (float)mPreprocessor->mObjects.size();//(float)mViewCellsTree->GetPvsSize(mViewCellsTree->GetRoot());
|
---|
| 5665 | int entriesInPvs = 1;//mViewCellsTree->GetPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1666] | 5666 |
|
---|
[1679] | 5667 | cout << "exporting vsposp stats ... " << endl;
|
---|
[1667] | 5668 | const float memoryCost = (float)entriesInPvs * (float)ObjectPvs::GetEntrySize();
|
---|
[1666] | 5669 |
|
---|
| 5670 | /////////////
|
---|
| 5671 | //-- first view cell
|
---|
[1679] | 5672 | UpdateStats(stats, 2, totalRenderCost, entriesInPvs, memoryCost, true);
|
---|
[1666] | 5673 |
|
---|
| 5674 | //-- go through tree in the order of render cost decrease
|
---|
| 5675 | //-- which is the same order as the view cells were merged
|
---|
| 5676 | //-- or the reverse order of subdivision for subdivision-only
|
---|
| 5677 | //-- view cell hierarchies.
|
---|
[1679] | 5678 | int i = 0;
|
---|
| 5679 | while (!(bvhQueue.empty() && vspQueue.empty()))
|
---|
[1666] | 5680 | {
|
---|
[1679] | 5681 | const float vspCost = !vspQueue.empty() ? vspQueue.top()->GetMergeCost() : -99999999.0;
|
---|
| 5682 | const float ospCost = !bvhQueue.empty() ? bvhQueue.top()->GetMergeCost() : -99999999.0;
|
---|
[1666] | 5683 |
|
---|
[1679] | 5684 | if (vspCost > ospCost)
|
---|
[1666] | 5685 | {
|
---|
[1679] | 5686 | cout << "vsp: " << (int)-vspCost << endl;
|
---|
| 5687 | cout << "v";
|
---|
| 5688 | VspNode *vspNode = vspQueue.top();
|
---|
[1666] | 5689 |
|
---|
[1679] | 5690 | if (!vspNode)
|
---|
| 5691 | {
|
---|
| 5692 | cerr << "big error!" << endl;
|
---|
| 5693 | break;
|
---|
| 5694 | }
|
---|
| 5695 | vspQueue.pop();
|
---|
[1666] | 5696 |
|
---|
[1679] | 5697 | if (!vspNode->IsLeaf())
|
---|
| 5698 | {
|
---|
| 5699 | totalRenderCost -= vspNode->mRenderCostDecr;
|
---|
| 5700 | entriesInPvs += vspNode->mPvsEntriesIncr;
|
---|
[1666] | 5701 |
|
---|
[1679] | 5702 | i ++;
|
---|
[1666] | 5703 |
|
---|
[1679] | 5704 | const float memoryCost = (float)entriesInPvs * (float)ObjectPvs::GetEntrySize();
|
---|
| 5705 | UpdateStats(stats, i, totalRenderCost, entriesInPvs, memoryCost, true);
|
---|
[1666] | 5706 |
|
---|
[1679] | 5707 | VspNode *front = dynamic_cast<VspInterior *>(vspNode)->GetFront();
|
---|
| 5708 | VspNode *back= dynamic_cast<VspInterior *>(vspNode)->GetBack();
|
---|
[1666] | 5709 |
|
---|
[1679] | 5710 | if (!front->IsLeaf())
|
---|
| 5711 | vspQueue.push(front);
|
---|
| 5712 | if (!back->IsLeaf())
|
---|
| 5713 | vspQueue.push(back);
|
---|
| 5714 | }
|
---|
| 5715 | }
|
---|
| 5716 | else // object space split
|
---|
| 5717 | {
|
---|
| 5718 | cout << "o";
|
---|
| 5719 | BvhNode *bvhNode = bvhQueue.top();
|
---|
| 5720 | cout << "bvh: " << (int)-ospCost << endl;
|
---|
| 5721 | if (!bvhNode)
|
---|
| 5722 | {
|
---|
| 5723 | cerr << "big error!" << endl;
|
---|
| 5724 | break;
|
---|
| 5725 | }
|
---|
| 5726 | bvhQueue.pop();
|
---|
[1666] | 5727 |
|
---|
[1679] | 5728 | if (!bvhNode->IsLeaf())
|
---|
| 5729 | {
|
---|
| 5730 | totalRenderCost -= bvhNode->mRenderCostDecr;
|
---|
| 5731 | entriesInPvs += bvhNode->mPvsEntriesIncr;
|
---|
[1666] | 5732 |
|
---|
[1679] | 5733 | i ++;
|
---|
| 5734 | const float memoryCost = (float)entriesInPvs * (float)ObjectPvs::GetEntrySize();
|
---|
| 5735 | UpdateStats(stats, i, totalRenderCost, entriesInPvs, memoryCost, false);
|
---|
| 5736 |
|
---|
| 5737 | BvhNode *front = dynamic_cast<BvhInterior *>(bvhNode)->GetFront();
|
---|
| 5738 | BvhNode *back= dynamic_cast<BvhInterior *>(bvhNode)->GetBack();
|
---|
[1666] | 5739 |
|
---|
[1679] | 5740 | if (!front->IsLeaf())
|
---|
| 5741 | bvhQueue.push(front);
|
---|
| 5742 | if (!back->IsLeaf())
|
---|
| 5743 | bvhQueue.push(back);
|
---|
[1666] | 5744 | }
|
---|
[1679] | 5745 | }
|
---|
| 5746 | cout << i << endl;
|
---|
| 5747 |
|
---|
[1666] | 5748 | }
|
---|
| 5749 |
|
---|
| 5750 | stats.close();
|
---|
| 5751 | }
|
---|
[1679] | 5752 | */
|
---|
[1666] | 5753 |
|
---|
[1184] | 5754 | #if TEST_EVALUATION
|
---|
[1178] | 5755 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5756 | {
|
---|
[1570] | 5757 | const int castSamples = (int)storedRays.size();
|
---|
[1178] | 5758 | char s[64];
|
---|
| 5759 | char statsPrefix[100];
|
---|
[1180] | 5760 |
|
---|
[1178] | 5761 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
| 5762 |
|
---|
| 5763 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 5764 |
|
---|
| 5765 | // should directional sampling be used?
|
---|
[1576] | 5766 | const bool dirSamples = (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[1178] | 5767 |
|
---|
| 5768 | cout << "reseting pvs ... ";
|
---|
| 5769 | const bool startFromZero = true;
|
---|
| 5770 |
|
---|
| 5771 | if (startFromZero)
|
---|
| 5772 | {
|
---|
[1627] | 5773 | // reset pvs and start over from zero
|
---|
[1178] | 5774 | mViewCellsTree->ResetPvs();
|
---|
| 5775 | }
|
---|
[1444] | 5776 | else
|
---|
[1178] | 5777 | {
|
---|
| 5778 | // statistics before casting more samples
|
---|
| 5779 | cout << "compute new statistics ... ";
|
---|
| 5780 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5781 | string fName = string(statsPrefix) + string(s);
|
---|
| 5782 |
|
---|
| 5783 | mViewCellsTree->ExportStats(fName);
|
---|
| 5784 | cout << "finished" << endl;
|
---|
| 5785 | }
|
---|
| 5786 | cout << "finished" << endl;
|
---|
| 5787 |
|
---|
| 5788 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 5789 |
|
---|
| 5790 | VssRayContainer evaluationSamples = storedRays;
|
---|
| 5791 | const int samplingType = mEvaluationSamplingType;
|
---|
| 5792 |
|
---|
| 5793 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1486] | 5794 |
|
---|
[1178] | 5795 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
[1486] | 5796 |
|
---|
[1178] | 5797 | cout << "finished" << endl;
|
---|
| 5798 |
|
---|
| 5799 | cout << "compute new statistics ... ";
|
---|
[1486] | 5800 |
|
---|
[1221] | 5801 | // propagate pvs or pvs size information
|
---|
[1178] | 5802 | ObjectPvs pvs;
|
---|
| 5803 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 5804 |
|
---|
| 5805 |
|
---|
[1486] | 5806 | /////////////////////
|
---|
| 5807 | // $§temporary matt: test render cost
|
---|
| 5808 |
|
---|
[1259] | 5809 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5810 | string fileName = string(statsPrefix) + string(s);
|
---|
[1178] | 5811 |
|
---|
[1259] | 5812 | ViewCellContainer leaves;
|
---|
[1184] | 5813 |
|
---|
[1259] | 5814 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5815 | float rc = 0;
|
---|
[1421] | 5816 |
|
---|
[1259] | 5817 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1421] | 5818 |
|
---|
[1259] | 5819 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5820 | {
|
---|
| 5821 | ViewCell *vc = *vit;
|
---|
[1184] | 5822 | int pvs = vc->GetPvs().CountObjectsInPvs();
|
---|
[1259] | 5823 | float vol = vc->GetVolume();
|
---|
| 5824 | rc += pvs * vol;
|
---|
[1184] | 5825 | }
|
---|
| 5826 |
|
---|
[1576] | 5827 | Debug << "\nrendercost hack: " << rc / mViewSpaceBox.GetVolume() << endl;
|
---|
[1178] | 5828 | mViewCellsTree->ExportStats(fileName);
|
---|
| 5829 | cout << "finished" << endl;
|
---|
| 5830 |
|
---|
| 5831 | disposeRays(evaluationSamples, NULL);
|
---|
| 5832 | }
|
---|
[580] | 5833 |
|
---|
[1551] | 5834 | #endif
|
---|
[878] | 5835 | }
|
---|