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