[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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[1139] | 20 | #include "KdIntersectable.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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[440] | 24 |
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[1159] | 25 | // should not count origin object for sampling because it disturbs heuristics
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[1166] | 26 | #define SAMPLE_ORIGIN_OBJECTS 0
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[931] | 27 |
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[863] | 28 | namespace GtpVisibilityPreprocessor {
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[860] | 29 |
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| 30 |
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[712] | 31 | // HACK
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| 32 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 33 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 34 |
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[697] | 35 |
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| 36 | template <typename T> class myless
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| 37 | {
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| 38 | public:
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| 39 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 40 | bool operator() (T v1, T v2) const
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| 41 | {
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| 42 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 43 | }
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| 44 | };
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| 45 |
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| 46 |
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[1264] | 47 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 48 | mRenderer(NULL),
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[574] | 49 | mInitialSamples(0),
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[440] | 50 | mConstructionSamples(0),
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| 51 | mPostProcessSamples(0),
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[470] | 52 | mVisualizationSamples(0),
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| 53 | mTotalAreaValid(false),
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[517] | 54 | mTotalArea(0.0f),
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[547] | 55 | mViewCellsFinished(false),
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[562] | 56 | mMaxPvsSize(9999999),
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[564] | 57 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 58 | mMaxPvsRatio(1.0),
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[1145] | 59 | mViewCellPvsIsUpdated(false),
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[1264] | 60 | mPreprocessor(NULL),
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| 61 | mViewCellsTree(viewCellsTree)
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[440] | 62 | {
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[542] | 63 | mViewSpaceBox.Initialize();
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[482] | 64 | ParseEnvironment();
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[580] | 65 |
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[1264] | 66 | mViewCellsTree->SetViewCellsManager(this);
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| 67 | //mViewCellsTree = new ViewCellsTree(this);
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[440] | 68 | }
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| 69 |
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[517] | 70 |
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[482] | 71 | void ViewCellsManager::ParseEnvironment()
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| 72 | {
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[503] | 73 | // visualization stuff
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[1004] | 74 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 75 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 76 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 77 |
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[1004] | 78 | Environment::GetSingleton()->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 79 |
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[710] | 80 | // HACK
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| 81 | if (0)
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| 82 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 83 | else
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| 84 | mMinPvsSize = 0;
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| 85 |
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[1004] | 86 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 87 |
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[1004] | 88 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 89 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 90 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 91 |
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[1004] | 92 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 93 |
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[1004] | 94 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 95 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 96 |
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[1004] | 97 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 98 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 99 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 100 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 101 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 102 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 103 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 104 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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| 105 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 106 |
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[1004] | 107 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 108 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 109 |
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[664] | 110 | char buf[100];
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[1004] | 111 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 112 |
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[660] | 113 |
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[1020] | 114 | // sampling type for view cells construction samples
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[664] | 115 | if (strcmp(buf, "box") == 0)
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[722] | 116 | {
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[660] | 117 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 118 | }
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[664] | 119 | else if (strcmp(buf, "directional") == 0)
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[722] | 120 | {
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[660] | 121 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 122 | }
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[1020] | 123 | else if (strcmp(buf, "object_directional") == 0)
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| 124 | {
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| 125 | mSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 126 | }
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[1022] | 127 | /*else if (strcmp(buf, "interior") == 0)
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| 128 | {
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| 129 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 130 | }*/
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[1020] | 131 | else
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| 132 | {
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[666] | 133 | Debug << "error! wrong sampling type" << endl;
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| 134 | exit(0);
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| 135 | }
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[660] | 136 |
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[1020] | 137 | // sampling type for evaluation samples
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[1004] | 138 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 139 |
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| 140 | if (strcmp(buf, "box") == 0)
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| 141 | {
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| 142 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 143 | }
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| 144 | else if (strcmp(buf, "directional") == 0)
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| 145 | {
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| 146 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 147 | }
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[1020] | 148 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 149 | {
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[1020] | 150 | mEvaluationSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 151 | }
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[1022] | 152 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 153 | {
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| 154 | mEvaluationSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 155 | }*/
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[1020] | 156 | else
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| 157 | {
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[722] | 158 | Debug << "error! wrong sampling type" << endl;
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| 159 | exit(0);
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| 160 | }
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[503] | 161 |
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[1004] | 162 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 163 |
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[734] | 164 | if (strcmp(buf, "perobject") == 0)
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[728] | 165 | {
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| 166 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 167 | }
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| 168 | else if (strcmp(buf, "directional") == 0)
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| 169 | {
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| 170 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 171 | }
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| 172 | else
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| 173 | {
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| 174 | Debug << "error! wrong sampling type" << endl;
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| 175 | exit(0);
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| 176 | }
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| 177 |
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[1004] | 178 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 179 |
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[482] | 180 | if (strcmp(buf, "PVS") == 0)
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| 181 | mColorCode = 1;
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| 182 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 183 | mColorCode = 2;
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| 184 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 185 | mColorCode = 3;
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| 186 | else
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| 187 | mColorCode = 0;
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| 188 |
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[664] | 189 |
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[710] | 190 |
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[1027] | 191 | Debug << "************ View Cells options ***************" << endl;
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[664] | 192 | Debug << "color code: " << mColorCode << endl;
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| 193 |
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| 194 | Debug << "export rays: " << mExportRays << endl;
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| 195 | Debug << "export geometry: " << mExportGeometry << endl;
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| 196 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 197 |
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[710] | 198 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 199 |
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| 200 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 201 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 202 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 203 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 204 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 205 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 206 | Debug << "export to file: " << mExportViewCells << endl;
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| 207 |
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[801] | 208 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 209 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 210 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 211 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 212 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 213 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 214 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 215 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 216 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 217 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 218 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 219 |
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| 220 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 221 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[1121] | 222 |
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[664] | 223 | Debug << endl;
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[440] | 224 | }
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| 225 |
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[485] | 226 |
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[440] | 227 | ViewCellsManager::~ViewCellsManager()
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| 228 | {
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[1020] | 229 | // HACK: if view cells tree does not
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[1264] | 230 | // handle view cells, we have to do it here
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[1020] | 231 | // question: rather create view cells resource manager?
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[598] | 232 | if (!ViewCellsTreeConstructed())
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[1141] | 233 | {
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[598] | 234 | CLEAR_CONTAINER(mViewCells);
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[1141] | 235 | }
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[1264] | 236 | //DEL_PTR(mViewCellsTree);
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[440] | 237 | }
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| 238 |
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[1221] | 239 |
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| 240 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 241 | {
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| 242 | Mesh *m = vc->GetMesh();
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| 243 |
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| 244 | if (m) {
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| 245 | m->ComputeBoundingBox();
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| 246 | return m->mBox;
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| 247 | }
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[485] | 248 |
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[859] | 249 | AxisAlignedBox3 box;
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| 250 |
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| 251 | box.Initialize();
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| 252 |
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| 253 | if (!vc->IsLeaf()) {
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| 254 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 255 |
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| 256 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 257 | for (; it != vci->mChildren.end(); ++it) {
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| 258 | box.Include(GetViewCellBox(*it));
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| 259 | }
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| 260 | }
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| 261 |
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| 262 | return box;
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| 263 | }
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| 264 |
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[693] | 265 | void ViewCellsManager::CollectEmptyViewCells()
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| 266 | {
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| 267 | mEmptyViewCells.clear();
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| 268 | ViewCellContainer leaves;
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| 269 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 270 |
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| 271 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 272 |
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| 273 | cout << "collecting empty view cells" << endl;
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[694] | 274 |
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[693] | 275 | for (it = leaves.begin(); it != it_end; ++ it)
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| 276 | {
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| 277 | if ((*it)->GetPvs().Empty())
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| 278 | {
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| 279 | mEmptyViewCells.push_back(*it);
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| 280 | }
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| 281 | }
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[694] | 282 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 283 | }
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| 284 |
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| 285 |
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[1021] | 286 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
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| 287 | {
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| 288 | return false;
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| 289 | }
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| 290 |
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| 291 |
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[694] | 292 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 293 | {
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| 294 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 295 |
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| 296 | char buf[50];
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| 297 | int i = 0;
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| 298 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 299 | {
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| 300 | if (!(*it)->GetPvs().Empty())
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| 301 | {
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[694] | 302 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 303 | Exporter *exporter = Exporter::GetExporter(buf);
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| 304 |
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| 305 | if (exporter && i < 20)
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| 306 | {
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[694] | 307 | Ray *pray = (*it)->mPiercingRays[0];
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[728] | 308 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: "
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[1168] | 309 | << (*it)->GetPvs().CountObjectsInPvs() << " " << (int)pray->intersections.size() << endl;
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[694] | 310 |
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| 311 | exporter->ExportRays((*it)->mPiercingRays);
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| 312 |
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| 313 | exporter->SetFilled();
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| 314 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 315 |
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| 316 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 317 | {
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| 318 | if (pray->intersections[j].mObject)
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| 319 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 320 | }
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| 321 |
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| 322 | //exporter->SetWireframe();
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| 323 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 324 | exporter->ExportGeometry(obj);
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| 325 |
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| 326 | exporter->SetFilled();
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| 327 |
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| 328 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 329 | ExportViewCellGeometry(exporter, *it);
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[694] | 330 |
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| 331 | delete exporter;
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[693] | 332 | }
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| 333 |
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[694] | 334 |
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[693] | 335 | ++ i;
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| 336 | }
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| 337 | }
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[1002] | 338 | Debug << "\nSampled " << i << " new view cells ("
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| 339 | << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 340 | }
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| 341 |
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| 342 |
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[574] | 343 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 344 | const int sampleType,
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| 345 | VssRayContainer &passSamples) const
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[527] | 346 | {
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[570] | 347 | SimpleRayContainer simpleRays;
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[540] | 348 |
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[1221] | 349 | const long startTime = GetTime();
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[564] | 350 |
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[1221] | 351 | mPreprocessor->GenerateRays(samplesPerPass, sampleType, simpleRays);
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| 352 |
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| 353 | Debug << "generated " << mInitialSamples << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 354 |
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[573] | 355 | // shoot simple ray and add it to importance samples
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[1145] | 356 | mPreprocessor->CastRays(simpleRays, passSamples);
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[1221] | 357 |
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| 358 | Debug << "cast " << mInitialSamples << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[570] | 359 |
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[574] | 360 | return (int)passSamples.size();
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| 361 | }
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[570] | 362 |
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[574] | 363 |
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| 364 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 365 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 366 | {
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| 367 | cout << "disposing samples ... ";
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[582] | 368 | long startTime = GetTime();
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| 369 | int n = (int)rays.size();
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| 370 |
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[573] | 371 | if (outRays)
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[542] | 372 | {
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[574] | 373 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 374 |
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| 375 | for (it = rays.begin(); it != it_end; ++ it)
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| 376 | {
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| 377 | outRays->push_back(*it);
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| 378 | }
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[573] | 379 | }
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| 380 | else
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| 381 | {
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[639] | 382 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 383 |
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| 384 | for (it = rays.begin(); it != it_end; ++ it)
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| 385 | {
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| 386 | //(*it)->Unref();
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| 387 | if (!(*it)->IsActive())
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| 388 | delete (*it);
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| 389 | }
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[573] | 390 | }
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[639] | 391 |
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[574] | 392 | cout << "finished" << endl;
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[582] | 393 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[573] | 394 | }
|
---|
[570] | 395 |
|
---|
| 396 |
|
---|
[573] | 397 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 398 | {
|
---|
[1145] | 399 | mPreprocessor = preprocessor;
|
---|
| 400 |
|
---|
[573] | 401 | int numSamples = 0;
|
---|
[1077] | 402 |
|
---|
[573] | 403 | SimpleRayContainer simpleRays;
|
---|
[574] | 404 | VssRayContainer initialSamples;
|
---|
[540] | 405 |
|
---|
[574] | 406 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
|
---|
[712] | 407 |
|
---|
[752] | 408 | long startTime = GetTime();
|
---|
| 409 |
|
---|
[573] | 410 | //-- construction rays => we use uniform samples for this
|
---|
[1221] | 411 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
|
---|
[573] | 412 |
|
---|
[1221] | 413 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 414 |
|
---|
[1264] | 415 |
|
---|
[573] | 416 | // construct view cells
|
---|
[752] | 417 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 418 |
|
---|
[727] | 419 | // initial samples count for overall samples ...
|
---|
[752] | 420 | numSamples += mInitialSamples;
|
---|
[542] | 421 |
|
---|
[574] | 422 | // rays can be passed or deleted
|
---|
[639] | 423 | disposeRays(initialSamples, outRays);
|
---|
[752] | 424 |
|
---|
| 425 | cout << "time needed for initial construction: "
|
---|
| 426 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 427 |
|
---|
| 428 | Debug << "time needed for initial construction: "
|
---|
| 429 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 430 |
|
---|
[1027] | 431 |
|
---|
[752] | 432 | // take post processing time
|
---|
| 433 | startTime = GetTime();
|
---|
| 434 |
|
---|
[660] | 435 | // -- stats after contruction
|
---|
| 436 | ResetViewCells();
|
---|
[667] | 437 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
| 438 |
|
---|
[1002] | 439 |
|
---|
[1077] | 440 | if (0) // export initial view cells
|
---|
[660] | 441 | {
|
---|
[712] | 442 | const char filename[] = "view_cells.wrl";
|
---|
| 443 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
[660] | 444 |
|
---|
[712] | 445 |
|
---|
[660] | 446 | if (exporter)
|
---|
| 447 | {
|
---|
[712] | 448 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
|
---|
[660] | 449 | if (mExportGeometry)
|
---|
[712] | 450 | {
|
---|
[660] | 451 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 452 | }
|
---|
[660] | 453 |
|
---|
[750] | 454 | exporter->SetWireframe();
|
---|
[660] | 455 | ExportViewCellsForViz(exporter);
|
---|
| 456 |
|
---|
| 457 | delete exporter;
|
---|
[712] | 458 | cout << "finished" << endl;
|
---|
[660] | 459 | }
|
---|
| 460 | }
|
---|
| 461 |
|
---|
[573] | 462 | //-- guided rays are used for further sampling
|
---|
[574] | 463 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[570] | 464 |
|
---|
[666] | 465 | // should we use directional samples?
|
---|
[694] | 466 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 467 |
|
---|
[1074] | 468 | //-- do some more sampling
|
---|
[573] | 469 | while (numSamples < n)
|
---|
| 470 | {
|
---|
[596] | 471 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 472 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 473 |
|
---|
[574] | 474 | VssRayContainer constructionSamples;
|
---|
| 475 |
|
---|
[694] | 476 | const int samplingType = mSamplingType;
|
---|
| 477 | /*dirSamples ?
|
---|
[574] | 478 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
[694] | 479 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
|
---|
[667] | 480 |
|
---|
[720] | 481 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 482 |
|
---|
[727] | 483 | // cast new samples
|
---|
[574] | 484 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 485 | samplingType,
|
---|
[574] | 486 | constructionSamples);
|
---|
| 487 |
|
---|
| 488 | cout << "finished" << endl;
|
---|
| 489 |
|
---|
| 490 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 491 |
|
---|
[727] | 492 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 493 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 494 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 495 |
|
---|
[574] | 496 | cout << "finished" << endl;
|
---|
| 497 |
|
---|
| 498 |
|
---|
[639] | 499 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 500 |
|
---|
| 501 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 502 | }
|
---|
[752] | 503 |
|
---|
[573] | 504 | //-- post processing
|
---|
| 505 | VssRayContainer postProcessSamples;
|
---|
[570] | 506 |
|
---|
[1074] | 507 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 508 |
|
---|
| 509 | // cast post processing samples rays (storing the view cells if wanted)
|
---|
[574] | 510 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 511 | mSamplingType,
|
---|
[574] | 512 | postProcessSamples);
|
---|
[660] | 513 |
|
---|
[1074] | 514 | cout << "finished" << endl;
|
---|
[660] | 515 |
|
---|
| 516 | // stats before post processing (i.e., merge)
|
---|
| 517 | EvaluateViewCellsStats();
|
---|
| 518 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 519 |
|
---|
| 520 | mRenderer->RenderScene();
|
---|
| 521 | SimulationStatistics ss;
|
---|
| 522 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 523 |
|
---|
| 524 | Debug << ss << endl;
|
---|
| 525 |
|
---|
| 526 |
|
---|
[574] | 527 | cout << "starting post processing and visualization" << endl;
|
---|
| 528 |
|
---|
[666] | 529 | // store view cells for postprocessing
|
---|
[574] | 530 | const bool storeViewCells = true;
|
---|
[605] | 531 |
|
---|
| 532 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 533 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 534 |
|
---|
[720] | 535 | //-- post processing (e.g.,merging) of the view cells
|
---|
[1077] | 536 | if (1) PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 537 |
|
---|
[955] | 538 | cout << "time needed for post processing (merge) step: "
|
---|
[752] | 539 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 540 |
|
---|
[955] | 541 | Debug << "time needed for post processing (merge) step: "
|
---|
[752] | 542 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 543 |
|
---|
[1002] | 544 | disposeRays(postProcessSamples, outRays);
|
---|
| 545 |
|
---|
[801] | 546 |
|
---|
[1002] | 547 | //return 1;
|
---|
[801] | 548 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
| 549 | if (mEvaluateViewCells)
|
---|
| 550 | {
|
---|
[1145] | 551 | EvalViewCellPartition();
|
---|
[801] | 552 | }
|
---|
[1002] | 553 |
|
---|
| 554 |
|
---|
[574] | 555 | //-- visualization
|
---|
[1074] | 556 |
|
---|
[666] | 557 | if (mShowVisualization)
|
---|
| 558 | {
|
---|
| 559 | VssRayContainer visualizationSamples;
|
---|
[574] | 560 |
|
---|
[666] | 561 | //-- construction rays => we use uniform samples for this
|
---|
| 562 | CastPassSamples(mVisualizationSamples,
|
---|
| 563 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 564 | visualizationSamples);
|
---|
[574] | 565 |
|
---|
[666] | 566 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 567 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 568 |
|
---|
[666] | 569 | // different visualizations
|
---|
| 570 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 571 |
|
---|
[666] | 572 | disposeRays(visualizationSamples, outRays);
|
---|
| 573 | }
|
---|
[574] | 574 |
|
---|
[573] | 575 | return numSamples;
|
---|
[527] | 576 | }
|
---|
| 577 |
|
---|
[547] | 578 |
|
---|
[752] | 579 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 580 | const int nViewCells)
|
---|
[728] | 581 | {
|
---|
| 582 | std::ofstream outstream;
|
---|
| 583 | outstream.open(filename.c_str());
|
---|
| 584 |
|
---|
| 585 | ViewCellContainer viewCells;
|
---|
[735] | 586 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 587 |
|
---|
| 588 | float maxRenderCost, minRenderCost;
|
---|
[734] | 589 |
|
---|
| 590 | // sort by render cost
|
---|
| 591 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 592 |
|
---|
| 593 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 594 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 595 |
|
---|
[991] | 596 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 597 |
|
---|
[997] | 598 | int histoIntervals;
|
---|
[1004] | 599 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 600 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 601 |
|
---|
[997] | 602 | int histoMaxVal;
|
---|
[1004] | 603 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 604 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 605 |
|
---|
[997] | 606 |
|
---|
[728] | 607 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 608 | const float stepSize = range / (float)intervals;
|
---|
[728] | 609 |
|
---|
[735] | 610 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 611 |
|
---|
| 612 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 613 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 614 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 615 |
|
---|
[736] | 616 | int j = 0;
|
---|
[735] | 617 | int i = 0;
|
---|
| 618 |
|
---|
[734] | 619 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 620 |
|
---|
[744] | 621 | // count for integral
|
---|
| 622 | float volSum = 0;
|
---|
| 623 | int smallerCostSum = 0;
|
---|
[735] | 624 |
|
---|
[734] | 625 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 626 | while (1)
|
---|
| 627 | {
|
---|
[744] | 628 | // count for histogram value
|
---|
| 629 | float volDif = 0;
|
---|
| 630 | int smallerCostDif = 0;
|
---|
[736] | 631 |
|
---|
[734] | 632 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 633 | {
|
---|
[744] | 634 | volSum += viewCells[i]->GetVolume();
|
---|
| 635 | volDif += viewCells[i]->GetVolume();
|
---|
| 636 |
|
---|
[734] | 637 | ++ i;
|
---|
[744] | 638 | ++ smallerCostSum;
|
---|
| 639 | ++ smallerCostDif;
|
---|
[734] | 640 | }
|
---|
[736] | 641 |
|
---|
[744] | 642 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 643 | break;
|
---|
[736] | 644 |
|
---|
[744] | 645 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 646 | const float volRatioSum = volSum / totalVol;
|
---|
| 647 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 648 |
|
---|
[991] | 649 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 650 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 651 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 652 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 653 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 654 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 655 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 656 |
|
---|
| 657 | // increase current render cost
|
---|
[734] | 658 | currentRenderCost += stepSize;
|
---|
| 659 | }
|
---|
[735] | 660 |
|
---|
[734] | 661 | outstream.close();
|
---|
| 662 | }
|
---|
| 663 |
|
---|
[735] | 664 |
|
---|
[979] | 665 |
|
---|
| 666 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 667 | ObjectContainer *objects,
|
---|
| 668 | const bool finalizeViewCells,
|
---|
| 669 | BoundingBoxConverter *bconverter)
|
---|
| 670 |
|
---|
| 671 | {
|
---|
| 672 | ViewCellsParser parser;
|
---|
| 673 |
|
---|
| 674 | ViewCellsManager *vm = NULL;
|
---|
| 675 |
|
---|
[1221] | 676 | if (parser.ParseViewCellsFile(filename, &vm, objects, bconverter))
|
---|
[979] | 677 | {
|
---|
| 678 | long startTime = GetTime();
|
---|
| 679 |
|
---|
| 680 | //vm->PrepareLoadedViewCells();
|
---|
| 681 | vm->ResetViewCells();
|
---|
| 682 |
|
---|
| 683 | vm->mViewCellsFinished = true;
|
---|
| 684 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 685 |
|
---|
| 686 | // create the meshes and compute volumes
|
---|
| 687 | if (finalizeViewCells)
|
---|
| 688 | {
|
---|
| 689 | vm->FinalizeViewCells(true);
|
---|
| 690 | vm->mViewCellsTree->AssignRandomColors();
|
---|
| 691 | }
|
---|
| 692 |
|
---|
| 693 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 694 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 695 | }
|
---|
| 696 | else
|
---|
| 697 | {
|
---|
| 698 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 699 | DEL_PTR(vm);
|
---|
| 700 | }
|
---|
| 701 |
|
---|
| 702 | return vm;
|
---|
| 703 | }
|
---|
| 704 |
|
---|
| 705 |
|
---|
| 706 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 707 | const bool exportPvs,
|
---|
| 708 | const ObjectContainer &objects)
|
---|
| 709 | {
|
---|
[1002] | 710 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[997] | 711 | return false;
|
---|
| 712 |
|
---|
[979] | 713 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 714 |
|
---|
[1201] | 715 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 716 |
|
---|
| 717 | // for output we need unique ids for each view cell
|
---|
| 718 | CreateUniqueViewCellIds();
|
---|
| 719 |
|
---|
| 720 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 721 | stream << "<VisibilitySolution>" << endl;
|
---|
| 722 |
|
---|
[1262] | 723 | if (exportPvs)
|
---|
| 724 | {
|
---|
| 725 | //-- export bounding boxes
|
---|
[1264] | 726 |
|
---|
[1262] | 727 | stream << "<BoundingBoxes>" << endl;
|
---|
[979] | 728 |
|
---|
[1262] | 729 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[979] | 730 |
|
---|
[1262] | 731 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 732 | {
|
---|
[979] | 733 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 734 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 735 |
|
---|
| 736 | //-- the bounding boxes
|
---|
| 737 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 738 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 739 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 740 | }
|
---|
[979] | 741 |
|
---|
[1262] | 742 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 743 | }
|
---|
[979] | 744 |
|
---|
[1264] | 745 |
|
---|
[979] | 746 | //-- export the view cells and the pvs
|
---|
| 747 |
|
---|
| 748 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 749 |
|
---|
| 750 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 751 |
|
---|
| 752 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 753 |
|
---|
| 754 | stream << "</ViewCells>" << endl;
|
---|
| 755 |
|
---|
| 756 |
|
---|
[1262] | 757 | //-- export the view space hierarchy
|
---|
[979] | 758 |
|
---|
[1262] | 759 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 760 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 761 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 762 |
|
---|
[979] | 763 | mVspBspTree->Export(stream);
|
---|
[1262] | 764 | stream << endl << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 765 |
|
---|
| 766 | stream << "</VisibilitySolution>" << endl;
|
---|
| 767 |
|
---|
| 768 | stream.close();
|
---|
| 769 | cout << "finished" << endl;
|
---|
| 770 |
|
---|
| 771 | return true;
|
---|
| 772 | }
|
---|
| 773 |
|
---|
| 774 |
|
---|
[735] | 775 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 776 | const int nViewCells)
|
---|
[734] | 777 | {
|
---|
| 778 | std::ofstream outstream;
|
---|
| 779 | outstream.open(filename.c_str());
|
---|
| 780 |
|
---|
| 781 | ViewCellContainer viewCells;
|
---|
[735] | 782 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 783 |
|
---|
[997] | 784 | int maxPvs, maxVal, minVal;
|
---|
[734] | 785 |
|
---|
[997] | 786 | // sort by pvs size
|
---|
[735] | 787 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 788 |
|
---|
[1142] | 789 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
[997] | 790 | minVal = 0;
|
---|
| 791 |
|
---|
[991] | 792 | // hack: normalize pvs size
|
---|
[997] | 793 | int histoMaxVal;
|
---|
[1004] | 794 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 795 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 796 |
|
---|
[1121] | 797 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 798 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 799 |
|
---|
[997] | 800 | int histoIntervals;
|
---|
[1004] | 801 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 802 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 803 |
|
---|
[997] | 804 | const int range = maxVal - minVal;
|
---|
[735] | 805 | int stepSize = range / intervals;
|
---|
| 806 |
|
---|
[997] | 807 | // set step size to avoid endless loop
|
---|
[735] | 808 | if (!stepSize) stepSize = 1;
|
---|
[979] | 809 |
|
---|
| 810 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 811 |
|
---|
[735] | 812 |
|
---|
| 813 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 814 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 815 |
|
---|
[997] | 816 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
[735] | 817 |
|
---|
[997] | 818 |
|
---|
[735] | 819 | int i = 0;
|
---|
| 820 | int j = 0;
|
---|
[734] | 821 |
|
---|
[744] | 822 | float volSum = 0;
|
---|
| 823 | int smallerSum = 0;
|
---|
| 824 |
|
---|
[735] | 825 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 826 |
|
---|
[997] | 827 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 828 | {
|
---|
[744] | 829 | float volDif = 0;
|
---|
| 830 | int smallerDif = 0;
|
---|
[736] | 831 |
|
---|
[997] | 832 | while ((i < (int)viewCells.size()) &&
|
---|
[1142] | 833 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
[735] | 834 | {
|
---|
[744] | 835 | volDif += viewCells[i]->GetVolume();
|
---|
| 836 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 837 |
|
---|
[735] | 838 | ++ i;
|
---|
[744] | 839 | ++ smallerDif;
|
---|
| 840 | ++ smallerSum;
|
---|
[735] | 841 | }
|
---|
[736] | 842 |
|
---|
[997] | 843 | if (0 && (i < (int)viewCells.size()))
|
---|
[1142] | 844 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i])
|
---|
[1121] | 845 | << " " << currentPvs << endl;
|
---|
[997] | 846 |
|
---|
[744] | 847 | const float volRatioDif = volDif / totalVol;
|
---|
| 848 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 849 |
|
---|
[997] | 850 | outstream << "#Pass\n" << j << endl;
|
---|
| 851 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 852 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 853 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 854 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 855 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 856 |
|
---|
| 857 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 858 |
|
---|
[997] | 859 | //-- increase current pvs size to define next interval
|
---|
| 860 | currentPvs += stepSize;
|
---|
[728] | 861 | }
|
---|
[991] | 862 |
|
---|
[735] | 863 | outstream.close();
|
---|
[728] | 864 | }
|
---|
| 865 |
|
---|
[735] | 866 |
|
---|
[1002] | 867 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 868 | {
|
---|
| 869 | return mExportPvs;
|
---|
| 870 | }
|
---|
| 871 |
|
---|
| 872 |
|
---|
[1259] | 873 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 874 | const Vector3 &hitPoint,
|
---|
| 875 | ViewCell *vc,
|
---|
| 876 | const float pdf,
|
---|
| 877 | float &contribution) const
|
---|
| 878 | {
|
---|
| 879 | if (!obj) return false;
|
---|
| 880 |
|
---|
| 881 | // potentially visible objects
|
---|
| 882 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 883 | }
|
---|
| 884 |
|
---|
| 885 |
|
---|
[1145] | 886 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 887 | {
|
---|
| 888 | int samplesPerPass;
|
---|
| 889 | int numSamples;
|
---|
| 890 | int castSamples = 0;
|
---|
| 891 |
|
---|
[664] | 892 | char s[64];
|
---|
| 893 |
|
---|
[1004] | 894 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 895 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 896 |
|
---|
[664] | 897 | char statsPrefix[100];
|
---|
[1004] | 898 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 899 |
|
---|
[664] | 900 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 901 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 902 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 903 |
|
---|
[666] | 904 | // should directional sampling be used?
|
---|
[722] | 905 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 906 |
|
---|
[801] | 907 | cout << "reseting pvs ... ";
|
---|
| 908 |
|
---|
[1145] | 909 | const bool startFromZero = true;
|
---|
[801] | 910 |
|
---|
[666] | 911 | // reset pvs and start over from zero
|
---|
| 912 | if (startFromZero)
|
---|
| 913 | {
|
---|
| 914 | mViewCellsTree->ResetPvs();
|
---|
| 915 | }
|
---|
[1145] | 916 | else // start from current sampless
|
---|
[666] | 917 | {
|
---|
[1145] | 918 | // statistics before casting more samples
|
---|
[666] | 919 | cout << "compute new statistics ... ";
|
---|
| 920 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 921 | string fName = string(statsPrefix) + string(s);
|
---|
| 922 |
|
---|
| 923 | mViewCellsTree->ExportStats(fName);
|
---|
| 924 | cout << "finished" << endl;
|
---|
| 925 | }
|
---|
[744] | 926 | cout << "finished" << endl;
|
---|
| 927 |
|
---|
[1178] | 928 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 929 |
|
---|
[660] | 930 | while (castSamples < numSamples)
|
---|
| 931 | {
|
---|
[664] | 932 | VssRayContainer evaluationSamples;
|
---|
[663] | 933 |
|
---|
[722] | 934 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 935 | /* dirSamples ?
|
---|
[664] | 936 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 937 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 938 | */
|
---|
[1004] | 939 | long startTime = GetTime();
|
---|
| 940 |
|
---|
[664] | 941 | //-- construction rays => we use uniform samples for this
|
---|
[1004] | 942 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 943 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 944 |
|
---|
[664] | 945 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 946 |
|
---|
| 947 | castSamples += samplesPerPass;
|
---|
| 948 |
|
---|
[1004] | 949 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 950 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 951 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 952 |
|
---|
[1004] | 953 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 954 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 955 |
|
---|
| 956 | startTime = GetTime();
|
---|
| 957 |
|
---|
[664] | 958 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 959 |
|
---|
[1004] | 960 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 961 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 962 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 963 |
|
---|
[1004] | 964 | startTime = GetTime();
|
---|
[801] | 965 |
|
---|
[1004] | 966 | cout << "compute new statistics ... ";
|
---|
| 967 | Debug << "compute new statistics ... ";
|
---|
| 968 |
|
---|
[801] | 969 | //-- propagate pvs or pvs size information
|
---|
[752] | 970 | ObjectPvs pvs;
|
---|
| 971 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 972 |
|
---|
[801] | 973 | //-- output stats
|
---|
[667] | 974 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 975 | string fileName = string(statsPrefix) + string(s);
|
---|
| 976 |
|
---|
| 977 | mViewCellsTree->ExportStats(fileName);
|
---|
| 978 |
|
---|
[1004] | 979 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 980 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 981 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 982 |
|
---|
| 983 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 984 | }
|
---|
[728] | 985 |
|
---|
[997] | 986 |
|
---|
| 987 | //-- histogram
|
---|
| 988 |
|
---|
[735] | 989 | bool useHisto;
|
---|
[997] | 990 | int histoStepSize;
|
---|
[693] | 991 |
|
---|
[1004] | 992 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 993 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 994 |
|
---|
[744] | 995 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 996 |
|
---|
| 997 |
|
---|
[735] | 998 | if (useHisto)
|
---|
[734] | 999 | {
|
---|
[735] | 1000 | // evaluate view cells in a histogram
|
---|
| 1001 | char s[64];
|
---|
| 1002 |
|
---|
[997] | 1003 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1004 | {
|
---|
[997] | 1005 | string filename;
|
---|
[744] | 1006 |
|
---|
[997] | 1007 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1008 | #if 0
|
---|
[744] | 1009 | //-- evaluate histogram for render cost
|
---|
| 1010 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1011 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1012 |
|
---|
| 1013 | EvalViewCellHistogram(filename, pass);
|
---|
| 1014 |
|
---|
[997] | 1015 | #endif
|
---|
[744] | 1016 | //////////////////////////////////////////
|
---|
[752] | 1017 | //-- evaluate histogram for pvs size
|
---|
[744] | 1018 |
|
---|
| 1019 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1020 |
|
---|
| 1021 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1022 | filename = string(statsPrefix) + string(s);
|
---|
| 1023 |
|
---|
| 1024 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1025 | }
|
---|
[734] | 1026 | }
|
---|
[660] | 1027 | }
|
---|
| 1028 |
|
---|
[704] | 1029 |
|
---|
| 1030 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1031 | {
|
---|
[704] | 1032 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1033 | }
|
---|
[660] | 1034 |
|
---|
[703] | 1035 |
|
---|
[1145] | 1036 | /// Returns index of the best view cells of the neighborhood
|
---|
[704] | 1037 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 1038 | {
|
---|
[705] | 1039 | int bestViewCellIdx = 0;
|
---|
[703] | 1040 |
|
---|
[704] | 1041 | float mergeCost = Limits::Infinity;
|
---|
| 1042 | int i = 0;
|
---|
[703] | 1043 |
|
---|
[734] | 1044 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1045 |
|
---|
[734] | 1046 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1047 | {
|
---|
[734] | 1048 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1049 |
|
---|
| 1050 | if (mc < mergeCost)
|
---|
[704] | 1051 | {
|
---|
| 1052 | mergeCost = mc;
|
---|
| 1053 | bestViewCellIdx = i;
|
---|
[703] | 1054 | }
|
---|
[704] | 1055 | }
|
---|
[703] | 1056 |
|
---|
[704] | 1057 | return bestViewCellIdx;
|
---|
| 1058 | }
|
---|
[703] | 1059 |
|
---|
| 1060 |
|
---|
[728] | 1061 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1062 | {
|
---|
| 1063 | mMaxFilterSize = size;
|
---|
| 1064 | }
|
---|
| 1065 |
|
---|
| 1066 |
|
---|
| 1067 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1068 | {
|
---|
| 1069 | switch (mRenderCostEvaluationType)
|
---|
| 1070 | {
|
---|
| 1071 | case PER_OBJECT:
|
---|
[752] | 1072 | //cout << "perobject" << endl;
|
---|
| 1073 | return 1.0f;
|
---|
[728] | 1074 |
|
---|
| 1075 | case PER_TRIANGLE:
|
---|
[1145] | 1076 | {//cout << "pertriangle" << endl;
|
---|
[728] | 1077 | // HACK
|
---|
| 1078 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1079 |
|
---|
| 1080 | // HACK: assume meshes are triangles
|
---|
| 1081 | if (mi->GetMesh())
|
---|
| 1082 | {
|
---|
[1145] | 1083 | return (float)mi->GetMesh()->mFaces.size();
|
---|
[728] | 1084 | }
|
---|
| 1085 | }
|
---|
| 1086 | default:
|
---|
[752] | 1087 | cout << "default" << endl;
|
---|
| 1088 | return 1.0f;
|
---|
[728] | 1089 | }
|
---|
| 1090 |
|
---|
| 1091 | // should not come here
|
---|
[752] | 1092 | return 0.0f;
|
---|
[728] | 1093 | }
|
---|
| 1094 |
|
---|
| 1095 |
|
---|
[704] | 1096 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1097 | const ViewCellContainer &viewCells)
|
---|
| 1098 | {
|
---|
| 1099 | ViewCell *root = currentViewCell;
|
---|
| 1100 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1101 |
|
---|
[704] | 1102 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1103 |
|
---|
[704] | 1104 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1105 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 1106 |
|
---|
[705] | 1107 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 1108 | //const float maxAvgCost = 350;
|
---|
| 1109 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1110 | {
|
---|
[704] | 1111 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1112 |
|
---|
[704] | 1113 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1114 |
|
---|
[704] | 1115 | // remove from vector
|
---|
| 1116 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1117 | neighborhood.pop_back();
|
---|
[705] | 1118 |
|
---|
[713] | 1119 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 1120 | if (!bestViewCell || !root)
|
---|
| 1121 | cout << "warning!!" << endl;
|
---|
[705] | 1122 |
|
---|
[704] | 1123 | // create new root of the hierarchy
|
---|
| 1124 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1125 | }
|
---|
| 1126 |
|
---|
[704] | 1127 | return root;
|
---|
[703] | 1128 | }
|
---|
| 1129 |
|
---|
[704] | 1130 |
|
---|
[713] | 1131 | struct SortableViewCellEntry {
|
---|
| 1132 |
|
---|
[1174] | 1133 | SortableViewCellEntry() {}
|
---|
| 1134 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1135 |
|
---|
[1174] | 1136 | float mValue;
|
---|
| 1137 | ViewCell *mViewCell;
|
---|
| 1138 |
|
---|
| 1139 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1140 | return a.mValue < b.mValue;
|
---|
| 1141 | }
|
---|
[713] | 1142 | };
|
---|
| 1143 |
|
---|
[1174] | 1144 |
|
---|
| 1145 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1146 | const ViewCellContainer &viewCells)
|
---|
[713] | 1147 | {
|
---|
| 1148 |
|
---|
| 1149 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1150 | int i, j;
|
---|
| 1151 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1152 | if (viewCells[i] != currentViewCell)
|
---|
| 1153 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1154 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1155 | viewCells[i]);
|
---|
| 1156 | }
|
---|
| 1157 | neighborhood.resize(j);
|
---|
| 1158 |
|
---|
| 1159 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1160 |
|
---|
| 1161 | ViewCell *root = currentViewCell;
|
---|
| 1162 |
|
---|
| 1163 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1164 |
|
---|
| 1165 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1166 | //-- use priority queue to merge leaf pairs
|
---|
| 1167 |
|
---|
| 1168 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1169 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1170 | {
|
---|
[713] | 1171 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1172 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1173 | // create new root of the hierarchy
|
---|
| 1174 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1175 | // set negative cost so that this view cell gets deleted
|
---|
| 1176 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1177 | }
|
---|
[713] | 1178 |
|
---|
| 1179 | return root;
|
---|
| 1180 | }
|
---|
| 1181 |
|
---|
| 1182 | void
|
---|
| 1183 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1184 | ) const
|
---|
| 1185 | {
|
---|
| 1186 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 1187 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1188 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1189 |
|
---|
| 1190 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1191 | DeleteLocalMergeTree(*it);
|
---|
| 1192 | vci->mChildren.clear();
|
---|
| 1193 | delete vci;
|
---|
| 1194 | }
|
---|
| 1195 | }
|
---|
| 1196 |
|
---|
[1021] | 1197 |
|
---|
[564] | 1198 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1199 | int minPvsSize,
|
---|
[562] | 1200 | int maxPvsSize) const
|
---|
[547] | 1201 | {
|
---|
[569] | 1202 |
|
---|
[1168] | 1203 | if ((vc->GetPvs().CountObjectsInPvs() > maxPvsSize) ||
|
---|
| 1204 | (vc->GetPvs().CountObjectsInPvs() < minPvsSize))
|
---|
[564] | 1205 | {
|
---|
[710] | 1206 | return false;
|
---|
[561] | 1207 | }
|
---|
[570] | 1208 |
|
---|
[710] | 1209 | return true;
|
---|
[547] | 1210 | }
|
---|
| 1211 |
|
---|
| 1212 |
|
---|
[710] | 1213 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1214 | ViewCellContainer &viewCells) const
|
---|
| 1215 | {
|
---|
| 1216 | return 0;
|
---|
| 1217 | };
|
---|
| 1218 |
|
---|
[1021] | 1219 |
|
---|
[697] | 1220 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1221 | const float width) const
|
---|
| 1222 | {
|
---|
[746] | 1223 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1224 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1225 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1226 |
|
---|
| 1227 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1228 | }
|
---|
| 1229 |
|
---|
| 1230 |
|
---|
[904] | 1231 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1232 | PrVs &prvs,
|
---|
| 1233 | const float filterWidth)
|
---|
[697] | 1234 | {
|
---|
[1112] | 1235 |
|
---|
[746] | 1236 |
|
---|
[1112] | 1237 |
|
---|
| 1238 |
|
---|
[746] | 1239 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1240 |
|
---|
[1112] | 1241 | if (mMaxFilterSize < 1) {
|
---|
| 1242 | prvs.mViewCell = currentViewCell;
|
---|
| 1243 | return;
|
---|
| 1244 | }
|
---|
| 1245 |
|
---|
| 1246 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1247 |
|
---|
[746] | 1248 | if (currentViewCell) {
|
---|
[697] | 1249 | ViewCellContainer viewCells;
|
---|
| 1250 | ComputeBoxIntersections(box, viewCells);
|
---|
[1112] | 1251 |
|
---|
| 1252 |
|
---|
[713] | 1253 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1254 | prvs.mViewCell = root;
|
---|
[1112] | 1255 |
|
---|
[746] | 1256 | } else
|
---|
| 1257 | prvs.mViewCell = NULL;
|
---|
| 1258 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1259 | }
|
---|
| 1260 |
|
---|
| 1261 |
|
---|
[581] | 1262 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1263 | {
|
---|
[1002] | 1264 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1265 | }
|
---|
| 1266 |
|
---|
| 1267 |
|
---|
[564] | 1268 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1269 | int minPvs,
|
---|
[562] | 1270 | int maxPvs) const
|
---|
| 1271 | {
|
---|
| 1272 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1273 | }
|
---|
| 1274 |
|
---|
[577] | 1275 |
|
---|
[569] | 1276 | void
|
---|
| 1277 | ViewCellsManager::SetValidity(
|
---|
[570] | 1278 | int minPvsSize,
|
---|
[569] | 1279 | int maxPvsSize) const
|
---|
| 1280 | {
|
---|
[991] | 1281 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1282 |
|
---|
[991] | 1283 |
|
---|
| 1284 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1285 | {
|
---|
| 1286 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1287 | }
|
---|
[569] | 1288 | }
|
---|
[562] | 1289 |
|
---|
[569] | 1290 | void
|
---|
| 1291 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1292 | const float minValid,
|
---|
| 1293 | const float maxValid
|
---|
| 1294 | )
|
---|
| 1295 | {
|
---|
[997] | 1296 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1297 |
|
---|
[1151] | 1298 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1299 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1300 |
|
---|
[1151] | 1301 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1302 | {
|
---|
| 1303 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1304 | }
|
---|
[569] | 1305 | }
|
---|
| 1306 |
|
---|
[1148] | 1307 |
|
---|
[991] | 1308 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1309 | {
|
---|
[991] | 1310 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1311 | int valid = 0;
|
---|
| 1312 |
|
---|
| 1313 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1314 | {
|
---|
| 1315 | if ((*it)->GetValid())
|
---|
| 1316 | ++ valid;
|
---|
| 1317 | }
|
---|
| 1318 |
|
---|
| 1319 | return valid;
|
---|
[569] | 1320 | }
|
---|
| 1321 |
|
---|
[577] | 1322 |
|
---|
| 1323 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1324 | {
|
---|
| 1325 | X3dParser parser;
|
---|
[503] | 1326 |
|
---|
[1004] | 1327 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1328 |
|
---|
[440] | 1329 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1330 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1331 |
|
---|
| 1332 | return success;
|
---|
| 1333 | }
|
---|
| 1334 |
|
---|
[485] | 1335 |
|
---|
[487] | 1336 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1337 | {
|
---|
[542] | 1338 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1339 | return true;
|
---|
| 1340 | }
|
---|
| 1341 |
|
---|
| 1342 |
|
---|
[557] | 1343 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1344 | {
|
---|
[610] | 1345 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1346 | }
|
---|
| 1347 |
|
---|
| 1348 |
|
---|
[490] | 1349 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1350 | {
|
---|
[569] | 1351 | if (!ViewCellsConstructed())
|
---|
[837] | 1352 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1353 | else
|
---|
| 1354 | {
|
---|
| 1355 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1356 | return false;
|
---|
| 1357 |
|
---|
| 1358 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1359 |
|
---|
| 1360 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1361 | return false;
|
---|
[569] | 1362 | }
|
---|
[837] | 1363 |
|
---|
[569] | 1364 | return true;
|
---|
[490] | 1365 | }
|
---|
| 1366 |
|
---|
[501] | 1367 |
|
---|
[563] | 1368 | float
|
---|
| 1369 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[1155] | 1370 | const bool addRays,
|
---|
[574] | 1371 | const bool storeViewCells
|
---|
[563] | 1372 | )
|
---|
[440] | 1373 | {
|
---|
[563] | 1374 | // view cells not yet constructed
|
---|
| 1375 | if (!ViewCellsConstructed())
|
---|
| 1376 | return 0.0f;
|
---|
[564] | 1377 |
|
---|
[563] | 1378 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 1379 |
|
---|
[563] | 1380 | float sum = 0.0f;
|
---|
[1155] | 1381 |
|
---|
[664] | 1382 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1383 | {
|
---|
[1159] | 1384 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
[563] | 1385 | }
|
---|
[664] | 1386 |
|
---|
[563] | 1387 | return sum;
|
---|
[440] | 1388 | }
|
---|
| 1389 |
|
---|
[485] | 1390 |
|
---|
[479] | 1391 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1392 | {
|
---|
[660] | 1393 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1394 |
|
---|
| 1395 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1396 |
|
---|
| 1397 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1398 | {
|
---|
[660] | 1399 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1400 | }
|
---|
[479] | 1401 | }
|
---|
| 1402 |
|
---|
[485] | 1403 |
|
---|
[580] | 1404 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1405 | float &expectedRenderCost,
|
---|
[580] | 1406 | float &deviation,
|
---|
| 1407 | float &variance,
|
---|
| 1408 | int &totalPvs,
|
---|
| 1409 | float &avgRenderCost)
|
---|
[579] | 1410 | {
|
---|
| 1411 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1412 |
|
---|
| 1413 | //-- compute expected value
|
---|
| 1414 | totalRenderCost = 0;
|
---|
[580] | 1415 | totalPvs = 0;
|
---|
[579] | 1416 |
|
---|
| 1417 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1418 | {
|
---|
| 1419 | ViewCell *vc = *it;
|
---|
[1168] | 1420 | totalRenderCost += vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
| 1421 | totalPvs += (int)vc->GetPvs().CountObjectsInPvs();
|
---|
[579] | 1422 | }
|
---|
| 1423 |
|
---|
[580] | 1424 | // normalize with view space box
|
---|
| 1425 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1426 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1427 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1428 |
|
---|
| 1429 |
|
---|
[580] | 1430 | //-- compute standard defiation
|
---|
[579] | 1431 | variance = 0;
|
---|
[580] | 1432 | deviation = 0;
|
---|
[579] | 1433 |
|
---|
| 1434 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1435 | {
|
---|
| 1436 | ViewCell *vc = *it;
|
---|
| 1437 |
|
---|
[1168] | 1438 | float renderCost = vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
[580] | 1439 | float dev;
|
---|
[579] | 1440 |
|
---|
[580] | 1441 | if (1)
|
---|
[1168] | 1442 | dev = fabs(avgRenderCost - (float)vc->GetPvs().CountObjectsInPvs());
|
---|
[580] | 1443 | else
|
---|
| 1444 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1445 |
|
---|
[580] | 1446 | deviation += dev;
|
---|
| 1447 | variance += dev * dev;
|
---|
[579] | 1448 | }
|
---|
[580] | 1449 |
|
---|
[579] | 1450 | variance /= (float)mViewCells.size();
|
---|
[580] | 1451 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1452 | }
|
---|
| 1453 |
|
---|
| 1454 |
|
---|
| 1455 |
|
---|
[440] | 1456 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1457 | {
|
---|
| 1458 | mViewCells.push_back(viewCell);
|
---|
| 1459 | }
|
---|
| 1460 |
|
---|
[485] | 1461 |
|
---|
[478] | 1462 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1463 | {
|
---|
| 1464 | return viewCell->GetArea();
|
---|
| 1465 | }
|
---|
| 1466 |
|
---|
| 1467 |
|
---|
| 1468 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1469 | {
|
---|
| 1470 | return viewCell->GetVolume();
|
---|
| 1471 | }
|
---|
| 1472 |
|
---|
[485] | 1473 |
|
---|
[1002] | 1474 | void ViewCellsManager::DeriveViewCellsFromObjects(const ObjectContainer &objects,
|
---|
| 1475 | ViewCellContainer &viewCells,
|
---|
| 1476 | const int maxViewCells) const
|
---|
[440] | 1477 | {
|
---|
| 1478 | // maximal max viewcells
|
---|
[503] | 1479 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1480 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1481 |
|
---|
| 1482 | for (int i = 0; i < limit; ++ i)
|
---|
| 1483 | {
|
---|
| 1484 | Intersectable *object = objects[i];
|
---|
[503] | 1485 |
|
---|
[440] | 1486 | // extract the mesh instances
|
---|
| 1487 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1488 | {
|
---|
| 1489 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1490 |
|
---|
| 1491 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1492 | viewCells.push_back(viewCell);
|
---|
| 1493 | }
|
---|
[1001] | 1494 | else if (object->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
| 1495 | {
|
---|
| 1496 | TransformedMeshInstance *mi = dynamic_cast<TransformedMeshInstance *>(object);
|
---|
| 1497 |
|
---|
| 1498 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1002] | 1499 |
|
---|
[1001] | 1500 | // transform mesh
|
---|
[1002] | 1501 | mi->GetTransformedMesh(*mesh);
|
---|
[1001] | 1502 |
|
---|
| 1503 | // create bb + kd tree
|
---|
| 1504 | mesh->Preprocess();
|
---|
| 1505 |
|
---|
| 1506 | ViewCell *viewCell = GenerateViewCell(mi->GetMesh());
|
---|
| 1507 | viewCells.push_back(viewCell);
|
---|
| 1508 |
|
---|
| 1509 | break;
|
---|
| 1510 | }
|
---|
[440] | 1511 | }
|
---|
| 1512 | }
|
---|
| 1513 |
|
---|
[485] | 1514 |
|
---|
[503] | 1515 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1516 | const float height) const
|
---|
| 1517 | {
|
---|
| 1518 | // one mesh per view cell
|
---|
[1001] | 1519 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1520 |
|
---|
[440] | 1521 | //-- construct prism
|
---|
| 1522 |
|
---|
[503] | 1523 | // bottom
|
---|
[440] | 1524 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1525 | // top
|
---|
| 1526 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1527 | // sides
|
---|
| 1528 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1529 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1530 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1531 |
|
---|
| 1532 | //--- extrude new vertices for top of prism
|
---|
| 1533 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1534 |
|
---|
[503] | 1535 | Triangle3 topTri;
|
---|
[440] | 1536 |
|
---|
| 1537 | // add base vertices and calculate top vertices
|
---|
| 1538 | for (int i = 0; i < 3; ++ i)
|
---|
| 1539 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1540 |
|
---|
| 1541 | // add top vertices
|
---|
[440] | 1542 | for (int i = 0; i < 3; ++ i)
|
---|
| 1543 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1544 |
|
---|
[440] | 1545 | mesh->Preprocess();
|
---|
| 1546 |
|
---|
| 1547 | return GenerateViewCell(mesh);
|
---|
| 1548 | }
|
---|
| 1549 |
|
---|
[485] | 1550 |
|
---|
[551] | 1551 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1552 | {
|
---|
| 1553 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1554 |
|
---|
| 1555 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1556 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1557 | {
|
---|
| 1558 | Finalize(*it, createMesh);
|
---|
| 1559 | }
|
---|
[555] | 1560 |
|
---|
| 1561 | mTotalAreaValid = false;
|
---|
[551] | 1562 | }
|
---|
| 1563 |
|
---|
| 1564 |
|
---|
| 1565 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1566 | {
|
---|
| 1567 | // implemented in subclasses
|
---|
| 1568 | }
|
---|
| 1569 |
|
---|
[1001] | 1570 |
|
---|
[1168] | 1571 | /** fast way of merging 2 view cells.
|
---|
| 1572 | */
|
---|
[582] | 1573 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1574 | {
|
---|
[580] | 1575 | // generate parent view cell
|
---|
[752] | 1576 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1577 |
|
---|
[752] | 1578 | vc->GetPvs().Clear();
|
---|
[610] | 1579 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1580 |
|
---|
| 1581 | // merge pvs of right cell
|
---|
[610] | 1582 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1583 |
|
---|
[462] | 1584 | //-- merge ray sets
|
---|
[564] | 1585 | if (0)
|
---|
| 1586 | {
|
---|
[582] | 1587 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1588 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1589 |
|
---|
[582] | 1590 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1591 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1592 | vc->mPiercingRays.begin());
|
---|
| 1593 | }
|
---|
[440] | 1594 |
|
---|
[710] | 1595 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1596 | vc->mChildren.push_back(left);
|
---|
| 1597 | vc->mChildren.push_back(right);
|
---|
| 1598 |
|
---|
[752] | 1599 | // update pvs size
|
---|
[1168] | 1600 | UpdateScalarPvsSize(vc, vc->GetPvs().CountObjectsInPvs(), vc->GetPvs().GetSize());
|
---|
[752] | 1601 |
|
---|
[440] | 1602 | return vc;
|
---|
| 1603 | }
|
---|
| 1604 |
|
---|
[485] | 1605 |
|
---|
[582] | 1606 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1607 | {
|
---|
[752] | 1608 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1609 |
|
---|
| 1610 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1611 |
|
---|
| 1612 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1613 | {
|
---|
| 1614 | // merge pvs
|
---|
[610] | 1615 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1616 | vc->mChildren.push_back(*it);
|
---|
[582] | 1617 | }
|
---|
| 1618 |
|
---|
| 1619 | return vc;
|
---|
| 1620 | }
|
---|
| 1621 |
|
---|
| 1622 |
|
---|
[480] | 1623 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1624 | {
|
---|
| 1625 | mRenderer = renderer;
|
---|
| 1626 | }
|
---|
[441] | 1627 |
|
---|
[485] | 1628 |
|
---|
[580] | 1629 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1630 | {
|
---|
[580] | 1631 | return mViewCellsTree;
|
---|
[440] | 1632 | }
|
---|
| 1633 |
|
---|
| 1634 |
|
---|
| 1635 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1636 | {
|
---|
[444] | 1637 | mVisualizationSamples = visSamples;
|
---|
[440] | 1638 | }
|
---|
| 1639 |
|
---|
[485] | 1640 |
|
---|
[440] | 1641 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1642 | {
|
---|
| 1643 | mConstructionSamples = constructionSamples;
|
---|
| 1644 | }
|
---|
| 1645 |
|
---|
[485] | 1646 |
|
---|
[574] | 1647 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1648 | {
|
---|
| 1649 | mInitialSamples = initialSamples;
|
---|
| 1650 | }
|
---|
| 1651 |
|
---|
| 1652 |
|
---|
[440] | 1653 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1654 | {
|
---|
| 1655 | mPostProcessSamples = postProcessSamples;
|
---|
| 1656 | }
|
---|
| 1657 |
|
---|
[485] | 1658 |
|
---|
[440] | 1659 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1660 | {
|
---|
| 1661 | return mVisualizationSamples;
|
---|
| 1662 | }
|
---|
| 1663 |
|
---|
[485] | 1664 |
|
---|
[440] | 1665 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1666 | {
|
---|
| 1667 | return mConstructionSamples;
|
---|
| 1668 | }
|
---|
| 1669 |
|
---|
[485] | 1670 |
|
---|
[440] | 1671 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1672 | {
|
---|
| 1673 | return mPostProcessSamples;
|
---|
| 1674 | }
|
---|
| 1675 |
|
---|
[485] | 1676 |
|
---|
[719] | 1677 | void ViewCellsManager::UpdatePvs()
|
---|
| 1678 | {
|
---|
[720] | 1679 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1680 | return;
|
---|
| 1681 |
|
---|
| 1682 | mViewCellPvsIsUpdated = true;
|
---|
| 1683 |
|
---|
| 1684 | ViewCellContainer leaves;
|
---|
| 1685 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1686 |
|
---|
| 1687 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1688 |
|
---|
| 1689 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1690 | {
|
---|
| 1691 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1692 | }
|
---|
| 1693 | }
|
---|
| 1694 |
|
---|
| 1695 |
|
---|
[485] | 1696 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1697 | {
|
---|
[1199] | 1698 | // update pvs of view cells tree if necessary
|
---|
| 1699 | UpdatePvs();
|
---|
| 1700 |
|
---|
| 1701 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1702 |
|
---|
| 1703 | stat.viewcells = 0;
|
---|
| 1704 | stat.minPvs = 100000000;
|
---|
| 1705 | stat.maxPvs = 0;
|
---|
| 1706 | stat.avgPvs = 0.0f;
|
---|
| 1707 |
|
---|
| 1708 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1709 | {
|
---|
[1199] | 1710 | ViewCell *viewcell = *it;
|
---|
[1121] | 1711 |
|
---|
[1199] | 1712 | // bool mCountKdPvs = false;
|
---|
| 1713 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
[1121] | 1714 |
|
---|
| 1715 |
|
---|
[1199] | 1716 | if (pvsSize < stat.minPvs)
|
---|
| 1717 | stat.minPvs = pvsSize;
|
---|
| 1718 | if (pvsSize > stat.maxPvs)
|
---|
| 1719 | stat.maxPvs = pvsSize;
|
---|
| 1720 |
|
---|
| 1721 | stat.avgPvs += pvsSize;
|
---|
| 1722 |
|
---|
| 1723 | ++ stat.viewcells;
|
---|
[719] | 1724 | }
|
---|
[1199] | 1725 |
|
---|
| 1726 | if (stat.viewcells)
|
---|
| 1727 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1728 | }
|
---|
| 1729 |
|
---|
[485] | 1730 |
|
---|
[480] | 1731 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1732 | {
|
---|
| 1733 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1734 | PvsStatistics pvsStat;
|
---|
| 1735 | GetPvsStatistics(pvsStat);
|
---|
| 1736 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1737 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1738 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1739 | }
|
---|
| 1740 |
|
---|
[485] | 1741 |
|
---|
[532] | 1742 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1743 | {
|
---|
| 1744 | return 0;
|
---|
| 1745 | }
|
---|
| 1746 |
|
---|
[547] | 1747 |
|
---|
[468] | 1748 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1749 | {
|
---|
| 1750 | return mViewCells;
|
---|
| 1751 | }
|
---|
| 1752 |
|
---|
[485] | 1753 |
|
---|
[487] | 1754 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1755 | {
|
---|
[542] | 1756 | mViewSpaceBox = box;
|
---|
[1074] | 1757 |
|
---|
[1027] | 1758 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1759 | CreateClipPlane();
|
---|
[1027] | 1760 | // the total area of the view space has changed
|
---|
[577] | 1761 | mTotalAreaValid = false;
|
---|
[487] | 1762 | }
|
---|
| 1763 |
|
---|
| 1764 |
|
---|
[660] | 1765 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1766 | {
|
---|
| 1767 | int axis = 0;
|
---|
[667] | 1768 | float pos;
|
---|
[591] | 1769 |
|
---|
[1004] | 1770 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1771 |
|
---|
[667] | 1772 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1773 |
|
---|
[660] | 1774 | if (mUseClipPlaneForViz)
|
---|
[1004] | 1775 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1776 |
|
---|
[1047] | 1777 | mClipPlane = AxisAlignedPlane(axis, point[axis]);
|
---|
[591] | 1778 | }
|
---|
| 1779 |
|
---|
| 1780 |
|
---|
[519] | 1781 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1782 | {
|
---|
[542] | 1783 | return mViewSpaceBox;
|
---|
[519] | 1784 | }
|
---|
| 1785 |
|
---|
| 1786 |
|
---|
[480] | 1787 | void ViewCellsManager::ResetViewCells()
|
---|
| 1788 | {
|
---|
[720] | 1789 | // recollect view cells
|
---|
[480] | 1790 | mViewCells.clear();
|
---|
| 1791 | CollectViewCells();
|
---|
[590] | 1792 |
|
---|
[720] | 1793 |
|
---|
| 1794 | // stats are computed once more
|
---|
[660] | 1795 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1796 | EvaluateViewCellsStats();
|
---|
[590] | 1797 |
|
---|
[520] | 1798 | // has to be recomputed
|
---|
[480] | 1799 | mTotalAreaValid = false;
|
---|
| 1800 | }
|
---|
| 1801 |
|
---|
[485] | 1802 |
|
---|
[547] | 1803 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1804 | {
|
---|
| 1805 | return mMaxPvsSize;
|
---|
| 1806 | }
|
---|
| 1807 |
|
---|
[590] | 1808 |
|
---|
[563] | 1809 | void
|
---|
| 1810 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1811 | {
|
---|
| 1812 | if (!ViewCellsConstructed())
|
---|
| 1813 | return;
|
---|
[564] | 1814 |
|
---|
[563] | 1815 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1816 |
|
---|
[563] | 1817 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1818 | AddSampleContributions(*(*it));
|
---|
| 1819 | }
|
---|
| 1820 | }
|
---|
[547] | 1821 |
|
---|
[581] | 1822 |
|
---|
[562] | 1823 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1824 | {
|
---|
| 1825 | return mMinPvsSize;
|
---|
| 1826 | }
|
---|
| 1827 |
|
---|
| 1828 |
|
---|
| 1829 |
|
---|
[561] | 1830 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1831 | {
|
---|
| 1832 | return mMaxPvsRatio;
|
---|
| 1833 | }
|
---|
| 1834 |
|
---|
| 1835 |
|
---|
[563] | 1836 | void
|
---|
| 1837 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1838 | {
|
---|
[563] | 1839 | // assumes viewcells have been stored...
|
---|
| 1840 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1841 | ViewCellContainer::const_iterator it;
|
---|
| 1842 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1843 | ViewCell *viewcell = *it;
|
---|
[569] | 1844 | if (viewcell->GetValid()) {
|
---|
| 1845 | // if ray not outside of view space
|
---|
| 1846 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1847 | }
|
---|
[563] | 1848 | }
|
---|
| 1849 | }
|
---|
[503] | 1850 |
|
---|
[574] | 1851 |
|
---|
[1159] | 1852 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 1853 | const bool addRays,
|
---|
| 1854 | const bool storeViewCells)
|
---|
[563] | 1855 | {
|
---|
[570] | 1856 | ViewCellContainer viewcells;
|
---|
[564] | 1857 |
|
---|
[570] | 1858 | ray.mPvsContribution = 0;
|
---|
| 1859 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1860 |
|
---|
[570] | 1861 | static Ray hray;
|
---|
[564] | 1862 | hray.Init(ray);
|
---|
| 1863 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1864 | //Ray hray(ray);
|
---|
| 1865 |
|
---|
| 1866 | float tmin = 0, tmax = 1.0;
|
---|
| 1867 |
|
---|
| 1868 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1869 | return 0;
|
---|
[564] | 1870 |
|
---|
| 1871 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1872 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1873 |
|
---|
[1006] | 1874 | // traverse the view space subdivision
|
---|
[564] | 1875 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1876 |
|
---|
[574] | 1877 | if (storeViewCells)
|
---|
[1155] | 1878 | { // copy viewcells memory efficiently
|
---|
[570] | 1879 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1880 | ray.mViewCells = viewcells;
|
---|
| 1881 | }
|
---|
[564] | 1882 |
|
---|
[570] | 1883 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1884 |
|
---|
[664] | 1885 | for (; it != viewcells.end(); ++ it)
|
---|
| 1886 | {
|
---|
| 1887 | ViewCell *viewcell = *it;
|
---|
[694] | 1888 |
|
---|
[708] | 1889 | if (viewcell->GetValid())
|
---|
[664] | 1890 | {
|
---|
| 1891 | // if ray not outside of view space
|
---|
| 1892 | float contribution;
|
---|
[1112] | 1893 | if (ray.mTerminationObject) {
|
---|
| 1894 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 1895 | ray.mPdf,
|
---|
| 1896 | contribution))
|
---|
[1184] | 1897 | {
|
---|
[664] | 1898 | ++ ray.mPvsContribution;
|
---|
[1184] | 1899 | ray.mRelativePvsContribution += contribution;
|
---|
| 1900 | }
|
---|
[664] | 1901 | }
|
---|
[840] | 1902 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1903 | // made in one direction!!!
|
---|
| 1904 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1166] | 1905 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 1906 | if (ray.mOriginObject &&
|
---|
| 1907 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1908 | ray.mPdf,
|
---|
| 1909 | contribution))
|
---|
| 1910 | {
|
---|
| 1911 | ++ ray.mPvsContribution;
|
---|
| 1912 | ray.mRelativePvsContribution += contribution;
|
---|
| 1913 | }
|
---|
[718] | 1914 | #endif
|
---|
[664] | 1915 | }
|
---|
[569] | 1916 | }
|
---|
[564] | 1917 |
|
---|
[1155] | 1918 | // if addrays is true, sampled entities are stored in the pvs
|
---|
[664] | 1919 | if (addRays)
|
---|
| 1920 | {
|
---|
| 1921 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1922 | {
|
---|
| 1923 | ViewCell *viewcell = *it;
|
---|
| 1924 |
|
---|
[706] | 1925 | if (viewcell->GetValid())
|
---|
[664] | 1926 | {
|
---|
| 1927 | // if ray not outside of view space
|
---|
[718] | 1928 |
|
---|
[1159] | 1929 | // add new object to the pvs
|
---|
[1155] | 1930 | if (ray.mTerminationObject)
|
---|
| 1931 | {
|
---|
[1159] | 1932 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1933 | }
|
---|
[1166] | 1934 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 1935 | if (ray.mOriginObject)
|
---|
[1159] | 1936 | {
|
---|
[666] | 1937 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 1938 | }
|
---|
[718] | 1939 | #endif
|
---|
[664] | 1940 | }
|
---|
| 1941 | }
|
---|
[563] | 1942 | }
|
---|
[570] | 1943 |
|
---|
| 1944 | return ray.mRelativePvsContribution;
|
---|
[468] | 1945 | }
|
---|
| 1946 |
|
---|
| 1947 |
|
---|
[469] | 1948 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1949 | const int maxSize,
|
---|
[503] | 1950 | VssRayContainer &usedRays,
|
---|
[485] | 1951 | VssRayContainer *savedRays) const
|
---|
[469] | 1952 | {
|
---|
[485] | 1953 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1954 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1955 |
|
---|
[485] | 1956 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1957 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1958 | {
|
---|
[473] | 1959 | if (Random(1.0f) < prop)
|
---|
[485] | 1960 | usedRays.push_back(*it);
|
---|
| 1961 | else if (savedRays)
|
---|
| 1962 | savedRays->push_back(*it);
|
---|
[469] | 1963 | }
|
---|
| 1964 | }
|
---|
| 1965 |
|
---|
[477] | 1966 |
|
---|
[728] | 1967 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1968 | {
|
---|
[1145] | 1969 | return (float)mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1970 | }
|
---|
| 1971 |
|
---|
| 1972 |
|
---|
[477] | 1973 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1974 | {
|
---|
| 1975 | // if already computed
|
---|
| 1976 | if (mTotalAreaValid)
|
---|
[728] | 1977 | {
|
---|
[470] | 1978 | return mTotalArea;
|
---|
[728] | 1979 | }
|
---|
[470] | 1980 |
|
---|
| 1981 | mTotalArea = 0;
|
---|
| 1982 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1983 |
|
---|
| 1984 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1985 | {
|
---|
| 1986 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1987 | mTotalArea += GetArea(*it);
|
---|
[480] | 1988 | }
|
---|
| 1989 |
|
---|
[470] | 1990 | mTotalAreaValid = true;
|
---|
| 1991 |
|
---|
| 1992 | return mTotalArea;
|
---|
| 1993 | }
|
---|
| 1994 |
|
---|
[482] | 1995 |
|
---|
[475] | 1996 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1997 | {
|
---|
[660] | 1998 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1999 | }
|
---|
| 2000 |
|
---|
[477] | 2001 |
|
---|
[508] | 2002 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2003 | {
|
---|
[651] | 2004 | if (ViewCellsTreeConstructed())
|
---|
| 2005 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 2006 | else
|
---|
| 2007 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 2008 | mViewCells[i]->SetId(i);
|
---|
[508] | 2009 | }
|
---|
| 2010 |
|
---|
| 2011 |
|
---|
| 2012 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 2013 | {
|
---|
[482] | 2014 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2015 |
|
---|
| 2016 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2017 | {
|
---|
[574] | 2018 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2019 | {
|
---|
[801] | 2020 | ExportColor(exporter, *it);
|
---|
| 2021 |
|
---|
[591] | 2022 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 2023 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 2024 | }
|
---|
[482] | 2025 | }
|
---|
| 2026 | }
|
---|
| 2027 |
|
---|
| 2028 |
|
---|
[517] | 2029 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2030 | {
|
---|
| 2031 | // convert to meshes
|
---|
| 2032 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2033 |
|
---|
| 2034 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2035 | {
|
---|
[517] | 2036 | if (!(*it)->GetMesh())
|
---|
[1001] | 2037 | {
|
---|
[517] | 2038 | CreateMesh(*it);
|
---|
[1001] | 2039 | }
|
---|
[503] | 2040 | }
|
---|
| 2041 | }
|
---|
| 2042 |
|
---|
[508] | 2043 |
|
---|
[944] | 2044 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2045 | const bool exportPvs,
|
---|
| 2046 | const ObjectContainer &objects)
|
---|
[564] | 2047 | {
|
---|
[508] | 2048 | return false;
|
---|
| 2049 | }
|
---|
| 2050 |
|
---|
| 2051 |
|
---|
[610] | 2052 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2053 | {
|
---|
[610] | 2054 | mNumActiveViewCells = n;
|
---|
| 2055 | mViewCells.clear();
|
---|
| 2056 | CollectViewCells();
|
---|
| 2057 | }
|
---|
[508] | 2058 |
|
---|
| 2059 |
|
---|
[660] | 2060 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2061 | {
|
---|
[882] | 2062 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2063 | // active view cells
|
---|
[660] | 2064 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2065 |
|
---|
[660] | 2066 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2067 | {
|
---|
[881] | 2068 | ViewCellContainer leaves;
|
---|
| 2069 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2070 |
|
---|
| 2071 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2072 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2073 | {
|
---|
| 2074 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2075 | }
|
---|
[660] | 2076 | }
|
---|
| 2077 | }
|
---|
[508] | 2078 |
|
---|
[840] | 2079 |
|
---|
| 2080 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2081 | {
|
---|
| 2082 | return mMaxFilterSize;
|
---|
| 2083 | }
|
---|
| 2084 |
|
---|
[1001] | 2085 |
|
---|
[840] | 2086 | static const bool USE_ASCII = true;
|
---|
| 2087 |
|
---|
[1001] | 2088 |
|
---|
[840] | 2089 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2090 | const ObjectContainer &objects) const
|
---|
| 2091 | {
|
---|
| 2092 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2093 |
|
---|
| 2094 | if (USE_ASCII)
|
---|
| 2095 | {
|
---|
| 2096 | ofstream boxesOut(filename.c_str());
|
---|
| 2097 | if (!boxesOut.is_open())
|
---|
| 2098 | return false;
|
---|
| 2099 |
|
---|
| 2100 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2101 | {
|
---|
| 2102 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2103 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2104 |
|
---|
| 2105 | boxesOut << mi->GetId() << " "
|
---|
| 2106 | << box.Min().x << " "
|
---|
| 2107 | << box.Min().y << " "
|
---|
| 2108 | << box.Min().z << " "
|
---|
| 2109 | << box.Max().x << " "
|
---|
| 2110 | << box.Max().y << " "
|
---|
| 2111 | << box.Max().z << endl;
|
---|
| 2112 | }
|
---|
| 2113 |
|
---|
| 2114 | boxesOut.close();
|
---|
| 2115 | }
|
---|
| 2116 | else
|
---|
| 2117 | {
|
---|
| 2118 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2119 |
|
---|
| 2120 | if (!boxesOut.is_open())
|
---|
| 2121 | return false;
|
---|
| 2122 |
|
---|
| 2123 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2124 | {
|
---|
| 2125 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2126 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2127 | Vector3 bmin = box.Min();
|
---|
| 2128 | Vector3 bmax = box.Max();
|
---|
[850] | 2129 | int id = mi->GetId();
|
---|
[840] | 2130 |
|
---|
[850] | 2131 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2132 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2133 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2134 | }
|
---|
| 2135 |
|
---|
| 2136 | boxesOut.close();
|
---|
| 2137 | }
|
---|
| 2138 |
|
---|
| 2139 | return true;
|
---|
| 2140 | }
|
---|
| 2141 |
|
---|
| 2142 |
|
---|
[850] | 2143 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2144 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2145 | {
|
---|
[850] | 2146 | Vector3 bmin, bmax;
|
---|
| 2147 | int id;
|
---|
[840] | 2148 |
|
---|
[850] | 2149 | if (USE_ASCII)
|
---|
[840] | 2150 | {
|
---|
[850] | 2151 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2152 |
|
---|
[850] | 2153 | if (!boxesIn.is_open())
|
---|
[840] | 2154 | {
|
---|
[850] | 2155 | cout << "failed to open file " << filename << endl;
|
---|
| 2156 | return false;
|
---|
[840] | 2157 | }
|
---|
[850] | 2158 |
|
---|
| 2159 | string buf;
|
---|
| 2160 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2161 | {
|
---|
[850] | 2162 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2163 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2164 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2165 |
|
---|
| 2166 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2167 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2168 | // HACK: set bounding box to new box
|
---|
| 2169 | //mi->mBox = box;
|
---|
| 2170 |
|
---|
| 2171 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2172 | }
|
---|
| 2173 |
|
---|
[850] | 2174 | boxesIn.close();
|
---|
[840] | 2175 | }
|
---|
[850] | 2176 | else
|
---|
[840] | 2177 | {
|
---|
[850] | 2178 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2179 |
|
---|
[850] | 2180 | if (!boxesIn.is_open())
|
---|
| 2181 | return false;
|
---|
| 2182 |
|
---|
| 2183 | while (1)
|
---|
[840] | 2184 | {
|
---|
[850] | 2185 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2186 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2187 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2188 |
|
---|
| 2189 | if (boxesIn.eof())
|
---|
| 2190 | break;
|
---|
| 2191 |
|
---|
| 2192 |
|
---|
| 2193 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2194 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2195 |
|
---|
| 2196 | // HACK: set bounding box to new box
|
---|
| 2197 | //mi->mBox = box;
|
---|
| 2198 | //boxes.push_back(mi);
|
---|
| 2199 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2200 | }
|
---|
| 2201 |
|
---|
[850] | 2202 | boxesIn.close();
|
---|
[840] | 2203 | }
|
---|
| 2204 |
|
---|
| 2205 | return true;
|
---|
[850] | 2206 | }
|
---|
[840] | 2207 |
|
---|
[931] | 2208 |
|
---|
| 2209 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2210 | {
|
---|
| 2211 | return mFilterWidth;
|
---|
| 2212 | }
|
---|
| 2213 |
|
---|
| 2214 |
|
---|
| 2215 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2216 | {
|
---|
| 2217 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2218 | }
|
---|
| 2219 |
|
---|
| 2220 |
|
---|
[1168] | 2221 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
| 2222 | const int pvsSize,
|
---|
| 2223 | const int entriesInPvs) const
|
---|
[1002] | 2224 | {
|
---|
| 2225 | vc->mPvsSize = pvsSize;
|
---|
[1160] | 2226 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2227 |
|
---|
[1002] | 2228 | vc->mPvsSizeValid = true;
|
---|
| 2229 | }
|
---|
| 2230 |
|
---|
| 2231 |
|
---|
[1021] | 2232 | void
|
---|
| 2233 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2234 | KdTree *kdTree,
|
---|
| 2235 | const float viewSpaceFilterSize,
|
---|
| 2236 | const float spatialFilterSize,
|
---|
| 2237 | ObjectPvs &pvs
|
---|
| 2238 | )
|
---|
| 2239 | {
|
---|
| 2240 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2241 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2242 | // in the pvs
|
---|
| 2243 |
|
---|
| 2244 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2245 | // and compute the pvs union
|
---|
| 2246 |
|
---|
| 2247 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2248 | // Vector3 center = m->mBox.Center();
|
---|
| 2249 |
|
---|
| 2250 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2251 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 2252 | if (!ViewCellsConstructed())
|
---|
| 2253 | return;
|
---|
| 2254 |
|
---|
| 2255 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
| 2256 |
|
---|
| 2257 | bool usePrVS = false;
|
---|
| 2258 |
|
---|
| 2259 | if (!usePrVS) {
|
---|
| 2260 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2261 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 2262 |
|
---|
| 2263 | ViewCellContainer viewCells;
|
---|
| 2264 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2265 |
|
---|
| 2266 | // cout<<"box="<<box<<endl;
|
---|
| 2267 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2268 |
|
---|
| 2269 | int i;
|
---|
| 2270 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2271 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2272 | pvs.Merge((*it)->GetPvs());
|
---|
| 2273 | }
|
---|
| 2274 | } else {
|
---|
| 2275 | PrVs prvs;
|
---|
| 2276 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2277 |
|
---|
| 2278 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2279 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2280 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2281 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2282 | }
|
---|
| 2283 | } else
|
---|
| 2284 | pvs = viewCell->GetPvs();
|
---|
| 2285 |
|
---|
| 2286 | if (spatialFilterSize >=0.0f)
|
---|
| 2287 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2288 |
|
---|
| 2289 | }
|
---|
| 2290 |
|
---|
| 2291 |
|
---|
| 2292 |
|
---|
| 2293 | void
|
---|
| 2294 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2295 | const float relViewSpaceFilterSize,
|
---|
| 2296 | const float relSpatialFilterSize
|
---|
| 2297 | )
|
---|
| 2298 | {
|
---|
| 2299 |
|
---|
| 2300 | if (!ViewCellsConstructed())
|
---|
| 2301 | return;
|
---|
| 2302 |
|
---|
| 2303 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2304 |
|
---|
| 2305 | ObjectPvs *newPvs;
|
---|
| 2306 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 2307 |
|
---|
| 2308 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2309 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 2310 |
|
---|
| 2311 | int i;
|
---|
| 2312 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2313 | ApplyFilter(*it,
|
---|
| 2314 | kdTree,
|
---|
| 2315 | viewSpaceFilterSize,
|
---|
| 2316 | spatialFilterSize,
|
---|
| 2317 | newPvs[i]
|
---|
| 2318 | );
|
---|
| 2319 | }
|
---|
| 2320 |
|
---|
| 2321 | // now replace all pvss
|
---|
| 2322 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2323 |
|
---|
| 2324 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2325 | pvs.Clear();
|
---|
| 2326 | pvs = newPvs[i];
|
---|
| 2327 | newPvs[i].Clear();
|
---|
| 2328 | }
|
---|
| 2329 |
|
---|
| 2330 | delete [] newPvs;
|
---|
| 2331 | }
|
---|
| 2332 |
|
---|
| 2333 |
|
---|
| 2334 |
|
---|
| 2335 |
|
---|
| 2336 | void
|
---|
| 2337 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2338 | KdTree *kdTree,
|
---|
| 2339 | const float spatialFilterSize,
|
---|
| 2340 | ObjectPvs &pvs
|
---|
| 2341 | )
|
---|
| 2342 | {
|
---|
| 2343 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2344 | // extended boxes of visible objects
|
---|
| 2345 |
|
---|
| 2346 | Intersectable::NewMail();
|
---|
| 2347 |
|
---|
[1189] | 2348 | ObjectPvsMap::const_iterator oi;
|
---|
[1021] | 2349 |
|
---|
[1189] | 2350 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi)
|
---|
| 2351 | {
|
---|
| 2352 | Intersectable *object = (*oi).first;
|
---|
| 2353 | object->Mail();
|
---|
[1021] | 2354 | }
|
---|
| 2355 |
|
---|
| 2356 | ObjectPvs nPvs;
|
---|
[1189] | 2357 | int nPvsSize = 0;
|
---|
[1021] | 2358 | // now go through the pvs again
|
---|
| 2359 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2360 | Intersectable *object = (*oi).first;
|
---|
| 2361 |
|
---|
| 2362 | // Vector3 center = object->GetBox().Center();
|
---|
| 2363 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2364 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2365 |
|
---|
| 2366 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2367 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2368 |
|
---|
| 2369 | ObjectContainer objects;
|
---|
| 2370 |
|
---|
| 2371 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2372 | kdTree->CollectObjects(box,
|
---|
| 2373 | objects);
|
---|
| 2374 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2375 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2376 | for (; noi != objects.end(); ++noi) {
|
---|
| 2377 | Intersectable *o = *noi;
|
---|
| 2378 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2379 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2380 | nPvsSize++;
|
---|
| 2381 | }
|
---|
| 2382 | }
|
---|
| 2383 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2384 | pvs.Merge(nPvs);
|
---|
| 2385 | }
|
---|
| 2386 |
|
---|
| 2387 |
|
---|
| 2388 | void ViewCellsManager::ExportColor(Exporter *exporter, ViewCell *vc) const
|
---|
| 2389 | {
|
---|
| 2390 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2391 |
|
---|
| 2392 | float importance = 0;
|
---|
| 2393 | static Material m;
|
---|
| 2394 |
|
---|
| 2395 | switch (mColorCode)
|
---|
| 2396 | {
|
---|
| 2397 | case 0: // Random
|
---|
| 2398 | {
|
---|
| 2399 | if (vcValid)
|
---|
| 2400 | {
|
---|
| 2401 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2402 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2403 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2404 | }
|
---|
| 2405 | else
|
---|
| 2406 | {
|
---|
| 2407 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2408 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2409 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2410 | }
|
---|
| 2411 |
|
---|
| 2412 | exporter->SetForcedMaterial(m);
|
---|
| 2413 | return;
|
---|
| 2414 | }
|
---|
| 2415 |
|
---|
| 2416 | case 1: // pvs
|
---|
| 2417 | {
|
---|
| 2418 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2419 | {
|
---|
| 2420 | importance =
|
---|
[1142] | 2421 | (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
[1121] | 2422 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2423 | }
|
---|
[1021] | 2424 | }
|
---|
| 2425 | break;
|
---|
| 2426 | case 2: // merges
|
---|
| 2427 | {
|
---|
| 2428 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2429 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2430 | }
|
---|
| 2431 | break;
|
---|
| 2432 | #if 0
|
---|
| 2433 | case 3: // merge tree differene
|
---|
| 2434 | {
|
---|
| 2435 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2436 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2437 |
|
---|
| 2438 | }
|
---|
| 2439 | break;
|
---|
| 2440 | #endif
|
---|
| 2441 | default:
|
---|
| 2442 | break;
|
---|
| 2443 | }
|
---|
| 2444 |
|
---|
| 2445 | // special color code for invalid view cells
|
---|
| 2446 | m.mDiffuseColor.r = importance;
|
---|
| 2447 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2448 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2449 |
|
---|
| 2450 | //Debug << "importance: " << importance << endl;
|
---|
| 2451 | exporter->SetForcedMaterial(m);
|
---|
| 2452 | }
|
---|
| 2453 |
|
---|
| 2454 |
|
---|
[1022] | 2455 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2456 | vector<MergeCandidate> &candidates)
|
---|
| 2457 | {
|
---|
| 2458 | // implemented in subclasses
|
---|
| 2459 | }
|
---|
| 2460 |
|
---|
[1047] | 2461 |
|
---|
[1168] | 2462 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2463 | {
|
---|
| 2464 | // terminate traversal
|
---|
| 2465 | if (root->IsLeaf())
|
---|
| 2466 | {
|
---|
| 2467 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2468 | pvs = root->GetPvs();
|
---|
| 2469 | UpdateScalarPvsSize(root, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2470 |
|
---|
| 2471 | return;
|
---|
| 2472 | }
|
---|
| 2473 |
|
---|
| 2474 | //-- interior node => propagate pvs up
|
---|
| 2475 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 2476 | interior->GetPvs().Clear();
|
---|
| 2477 | pvs.Clear();
|
---|
| 2478 | vector<ObjectPvs> pvsList;
|
---|
| 2479 |
|
---|
| 2480 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 2481 |
|
---|
| 2482 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 2483 | {
|
---|
| 2484 | ObjectPvs objPvs;
|
---|
| 2485 |
|
---|
| 2486 | //-- recursivly compute child pvss
|
---|
| 2487 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 2488 |
|
---|
| 2489 | // store pvs in vector
|
---|
| 2490 | pvsList.push_back(objPvs);
|
---|
| 2491 | }
|
---|
| 2492 |
|
---|
| 2493 | #if 1
|
---|
| 2494 | Intersectable::NewMail();
|
---|
| 2495 |
|
---|
| 2496 | //-- faster way of computing pvs:
|
---|
| 2497 | // construct merged pvs by adding
|
---|
| 2498 | // and only those of the next pvs which were not mailed.
|
---|
| 2499 | // note: sumpdf is not correct!!
|
---|
| 2500 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2501 |
|
---|
| 2502 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2503 | {
|
---|
| 2504 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2505 |
|
---|
| 2506 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2507 | {
|
---|
| 2508 | Intersectable *intersect = (*pit).first;
|
---|
| 2509 |
|
---|
| 2510 | if (!intersect->Mailed())
|
---|
| 2511 | {
|
---|
| 2512 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2513 | intersect->Mail();
|
---|
| 2514 | }
|
---|
| 2515 | }
|
---|
| 2516 | }
|
---|
| 2517 |
|
---|
| 2518 | // store pvs in this node
|
---|
| 2519 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2520 | {
|
---|
| 2521 | interior->SetPvs(pvs);
|
---|
| 2522 | }
|
---|
| 2523 |
|
---|
| 2524 | // set new pvs size
|
---|
| 2525 | UpdateScalarPvsSize(interior, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2526 |
|
---|
| 2527 |
|
---|
[1178] | 2528 | #else // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2529 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2530 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2531 | #endif
|
---|
| 2532 | }
|
---|
| 2533 |
|
---|
[1174] | 2534 |
|
---|
| 2535 |
|
---|
[1145] | 2536 | /*******************************************************************/
|
---|
| 2537 | /* BspViewCellsManager implementation */
|
---|
| 2538 | /*******************************************************************/
|
---|
[440] | 2539 |
|
---|
[482] | 2540 |
|
---|
[1264] | 2541 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 2542 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 2543 | {
|
---|
[1004] | 2544 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2545 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 2546 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 2547 | }
|
---|
| 2548 |
|
---|
[462] | 2549 |
|
---|
[440] | 2550 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2551 | {
|
---|
| 2552 | return mBspTree->GetRoot() != NULL;
|
---|
| 2553 | }
|
---|
| 2554 |
|
---|
[480] | 2555 |
|
---|
[440] | 2556 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2557 | {
|
---|
| 2558 | return new BspViewCell(mesh);
|
---|
| 2559 | }
|
---|
| 2560 |
|
---|
[480] | 2561 |
|
---|
[574] | 2562 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2563 | const VssRayContainer &rays)
|
---|
[440] | 2564 | {
|
---|
[441] | 2565 | // if view cells were already constructed
|
---|
[440] | 2566 | if (ViewCellsConstructed())
|
---|
| 2567 | return 0;
|
---|
| 2568 |
|
---|
| 2569 | int sampleContributions = 0;
|
---|
[503] | 2570 |
|
---|
[469] | 2571 | // construct view cells using the collected samples
|
---|
| 2572 | RayContainer constructionRays;
|
---|
| 2573 | VssRayContainer savedRays;
|
---|
[440] | 2574 |
|
---|
[574] | 2575 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 2576 |
|
---|
[469] | 2577 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2578 |
|
---|
[473] | 2579 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 2580 |
|
---|
[469] | 2581 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2582 | {
|
---|
[473] | 2583 | if (Random(1.0f) < prop)
|
---|
[469] | 2584 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2585 | else
|
---|
| 2586 | savedRays.push_back(*it);
|
---|
| 2587 | }
|
---|
[440] | 2588 |
|
---|
[503] | 2589 | if (mViewCells.empty())
|
---|
| 2590 | {
|
---|
| 2591 | // no view cells loaded
|
---|
[587] | 2592 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2593 | // collect final view cells
|
---|
| 2594 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2595 | }
|
---|
[469] | 2596 | else
|
---|
| 2597 | {
|
---|
| 2598 | mBspTree->Construct(mViewCells);
|
---|
| 2599 | }
|
---|
| 2600 |
|
---|
| 2601 | // destroy rays created only for construction
|
---|
| 2602 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2603 |
|
---|
[440] | 2604 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 2605 |
|
---|
| 2606 | //EvaluateViewCellsStats();
|
---|
[660] | 2607 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2608 |
|
---|
[469] | 2609 | // recast rest of the rays
|
---|
[649] | 2610 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2611 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2612 |
|
---|
[719] | 2613 | // real meshes are contructed at this stage
|
---|
| 2614 | if (0)
|
---|
| 2615 | {
|
---|
| 2616 | cout << "finalizing view cells ... ";
|
---|
| 2617 | FinalizeViewCells(true);
|
---|
| 2618 | cout << "finished" << endl;
|
---|
| 2619 | }
|
---|
| 2620 |
|
---|
[440] | 2621 | return sampleContributions;
|
---|
| 2622 | }
|
---|
| 2623 |
|
---|
[503] | 2624 |
|
---|
[480] | 2625 | void BspViewCellsManager::CollectViewCells()
|
---|
| 2626 | {
|
---|
[587] | 2627 | // view cells tree constructed
|
---|
| 2628 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 2629 | {
|
---|
[587] | 2630 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2631 | }
|
---|
| 2632 | else
|
---|
| 2633 | {
|
---|
| 2634 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 2635 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 2636 | mNumActiveViewCells);
|
---|
[587] | 2637 | }
|
---|
[480] | 2638 | }
|
---|
[468] | 2639 |
|
---|
[503] | 2640 |
|
---|
[471] | 2641 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2642 | {
|
---|
[471] | 2643 | // compute view cell area as subsititute for probability
|
---|
[591] | 2644 | if (1)
|
---|
| 2645 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2646 | else
|
---|
| 2647 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2648 | }
|
---|
[440] | 2649 |
|
---|
[503] | 2650 |
|
---|
[440] | 2651 |
|
---|
[468] | 2652 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2653 | const Vector3 &termination,
|
---|
| 2654 | ViewCellContainer &viewcells)
|
---|
[440] | 2655 | {
|
---|
[468] | 2656 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2657 | }
|
---|
| 2658 |
|
---|
| 2659 |
|
---|
[503] | 2660 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2661 | const VssRayContainer &rays)
|
---|
| 2662 | {
|
---|
[469] | 2663 | if (!ViewCellsConstructed())
|
---|
[441] | 2664 | {
|
---|
| 2665 | Debug << "view cells not constructed" << endl;
|
---|
| 2666 | return 0;
|
---|
| 2667 | }
|
---|
[590] | 2668 |
|
---|
| 2669 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 2670 | if (mViewCellsFinished)
|
---|
| 2671 | {
|
---|
| 2672 | FinalizeViewCells(true);
|
---|
| 2673 | EvaluateViewCellsStats();
|
---|
| 2674 |
|
---|
| 2675 | return 0;
|
---|
| 2676 | }
|
---|
| 2677 |
|
---|
[440] | 2678 | //-- post processing of bsp view cells
|
---|
[600] | 2679 |
|
---|
[440] | 2680 | int vcSize = 0;
|
---|
| 2681 | int pvsSize = 0;
|
---|
| 2682 |
|
---|
[591] | 2683 | //-- merge view cells
|
---|
[1264] | 2684 |
|
---|
[649] | 2685 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2686 | long startTime = GetTime();
|
---|
| 2687 |
|
---|
| 2688 | VssRayContainer postProcessRays;
|
---|
| 2689 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2690 |
|
---|
[592] | 2691 | if (mMergeViewCells)
|
---|
[591] | 2692 | {
|
---|
[660] | 2693 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2694 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2695 | }
|
---|
| 2696 | else
|
---|
| 2697 | {
|
---|
[660] | 2698 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2699 |
|
---|
[649] | 2700 | // create spatial merge hierarchy
|
---|
[752] | 2701 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2702 | mViewCellsTree->SetRoot(root);
|
---|
| 2703 |
|
---|
| 2704 | // compute pvs
|
---|
| 2705 | ObjectPvs pvs;
|
---|
| 2706 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2707 | }
|
---|
[440] | 2708 |
|
---|
[660] | 2709 | // export statistics after merge
|
---|
[666] | 2710 | if (1)
|
---|
| 2711 | {
|
---|
| 2712 | char mstats[100];
|
---|
[1004] | 2713 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2714 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2715 | }
|
---|
[650] | 2716 |
|
---|
[649] | 2717 | //-- stats and visualizations
|
---|
| 2718 | cout << "finished" << endl;
|
---|
[650] | 2719 | cout << "merged view cells in "
|
---|
[752] | 2720 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[440] | 2721 |
|
---|
[650] | 2722 | Debug << "Postprocessing: Merged view cells in "
|
---|
[752] | 2723 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
[649] | 2724 |
|
---|
[503] | 2725 |
|
---|
[660] | 2726 | //-- visualization and statistics
|
---|
[600] | 2727 | // reset view cells and stats
|
---|
[480] | 2728 | ResetViewCells();
|
---|
[660] | 2729 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2730 |
|
---|
[1121] | 2731 | // save color code
|
---|
| 2732 | const int savedColorCode = mColorCode;
|
---|
[605] | 2733 |
|
---|
[600] | 2734 | //BspLeaf::NewMail();
|
---|
| 2735 | if (1) // export merged view cells
|
---|
| 2736 | {
|
---|
| 2737 | mColorCode = 0;
|
---|
[605] | 2738 |
|
---|
[744] | 2739 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2740 |
|
---|
[600] | 2741 |
|
---|
| 2742 | cout << "exporting view cells after merge ... ";
|
---|
| 2743 |
|
---|
| 2744 | if (exporter)
|
---|
| 2745 | {
|
---|
| 2746 | if (mExportGeometry)
|
---|
| 2747 | exporter->ExportGeometry(objects);
|
---|
| 2748 |
|
---|
| 2749 | //exporter->SetWireframe();
|
---|
| 2750 | exporter->SetFilled();
|
---|
| 2751 | ExportViewCellsForViz(exporter);
|
---|
| 2752 |
|
---|
| 2753 |
|
---|
| 2754 | delete exporter;
|
---|
| 2755 | }
|
---|
| 2756 | cout << "finished" << endl;
|
---|
| 2757 | }
|
---|
| 2758 |
|
---|
[752] | 2759 | if (1) // export merged view cells using pvs color coding
|
---|
[600] | 2760 | {
|
---|
| 2761 | mColorCode = 1;
|
---|
| 2762 |
|
---|
[744] | 2763 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2764 |
|
---|
| 2765 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2766 |
|
---|
| 2767 | if (exporter)
|
---|
| 2768 | {
|
---|
| 2769 | //exporter->SetWireframe();
|
---|
[752] | 2770 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
| 2771 |
|
---|
[600] | 2772 | if (mExportGeometry)
|
---|
| 2773 | exporter->ExportGeometry(objects);
|
---|
| 2774 |
|
---|
| 2775 | //exporter->SetWireframe();
|
---|
| 2776 | exporter->SetFilled();
|
---|
| 2777 | ExportViewCellsForViz(exporter);
|
---|
| 2778 |
|
---|
| 2779 | delete exporter;
|
---|
| 2780 | }
|
---|
| 2781 | cout << "finished" << endl;
|
---|
| 2782 | }
|
---|
[693] | 2783 |
|
---|
[1122] | 2784 | // only for debugging purpose: test if the subdivision is valid
|
---|
| 2785 | if (0) TestSubdivision();
|
---|
[693] | 2786 |
|
---|
[600] | 2787 | mColorCode = savedColorCode;
|
---|
| 2788 |
|
---|
[719] | 2789 | // compute final meshes and volume / area
|
---|
| 2790 | if (1) FinalizeViewCells(true);
|
---|
| 2791 |
|
---|
[587] | 2792 | // write view cells to disc
|
---|
| 2793 | if (mExportViewCells)
|
---|
| 2794 | {
|
---|
[840] | 2795 | char filename[100];
|
---|
[1004] | 2796 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2797 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2798 | }
|
---|
[840] | 2799 |
|
---|
| 2800 | // export bounding boxes
|
---|
[931] | 2801 | if (0 && mExportBboxesForPvs)
|
---|
[840] | 2802 | {
|
---|
| 2803 | char filename[100];
|
---|
[1004] | 2804 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[840] | 2805 | ExportBoundingBoxes(filename, objects);
|
---|
| 2806 | }
|
---|
[587] | 2807 |
|
---|
[840] | 2808 |
|
---|
[650] | 2809 | return 0;
|
---|
[440] | 2810 | }
|
---|
| 2811 |
|
---|
[477] | 2812 |
|
---|
| 2813 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2814 | {
|
---|
| 2815 | }
|
---|
| 2816 |
|
---|
| 2817 |
|
---|
[440] | 2818 | int BspViewCellsManager::GetType() const
|
---|
| 2819 | {
|
---|
| 2820 | return BSP;
|
---|
| 2821 | }
|
---|
| 2822 |
|
---|
| 2823 |
|
---|
| 2824 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2825 | const VssRayContainer &sampleRays)
|
---|
[440] | 2826 | {
|
---|
[469] | 2827 | if (!ViewCellsConstructed())
|
---|
| 2828 | return;
|
---|
[574] | 2829 |
|
---|
[600] | 2830 | int savedColorCode = mColorCode;
|
---|
| 2831 |
|
---|
| 2832 |
|
---|
| 2833 | if (1) // export final view cells
|
---|
[440] | 2834 | {
|
---|
[1020] | 2835 | mColorCode = 1; // hack color code
|
---|
[822] | 2836 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 2837 |
|
---|
| 2838 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2839 |
|
---|
[469] | 2840 | if (exporter)
|
---|
[440] | 2841 | {
|
---|
[600] | 2842 | //exporter->SetWireframe();
|
---|
| 2843 |
|
---|
| 2844 | if (mExportGeometry)
|
---|
| 2845 | exporter->ExportGeometry(objects);
|
---|
[590] | 2846 |
|
---|
[801] | 2847 | //exporter->SetFilled();
|
---|
[1020] | 2848 | const bool b = mUseClipPlaneForViz;
|
---|
[801] | 2849 | mUseClipPlaneForViz = false;
|
---|
[1020] | 2850 |
|
---|
[508] | 2851 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 2852 |
|
---|
[801] | 2853 | mUseClipPlaneForViz = b;
|
---|
[469] | 2854 | delete exporter;
|
---|
[440] | 2855 | }
|
---|
[469] | 2856 | cout << "finished" << endl;
|
---|
[503] | 2857 | }
|
---|
[477] | 2858 |
|
---|
[600] | 2859 | mColorCode = savedColorCode;
|
---|
| 2860 |
|
---|
[469] | 2861 | //-- visualization of the BSP splits
|
---|
| 2862 | bool exportSplits = false;
|
---|
[1004] | 2863 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2864 |
|
---|
[469] | 2865 | if (exportSplits)
|
---|
[440] | 2866 | {
|
---|
[469] | 2867 | cout << "exporting splits ... ";
|
---|
[477] | 2868 | ExportSplits(objects);
|
---|
[469] | 2869 | cout << "finished" << endl;
|
---|
[440] | 2870 | }
|
---|
[477] | 2871 |
|
---|
[600] | 2872 | // export single view cells
|
---|
[477] | 2873 | ExportBspPvs(objects);
|
---|
[440] | 2874 | }
|
---|
| 2875 |
|
---|
| 2876 |
|
---|
[477] | 2877 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2878 | {
|
---|
| 2879 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2880 |
|
---|
[503] | 2881 | if (exporter)
|
---|
| 2882 | {
|
---|
[598] | 2883 | //exporter->SetFilled();
|
---|
| 2884 |
|
---|
| 2885 | if (mExportGeometry)
|
---|
| 2886 | exporter->ExportGeometry(objects);
|
---|
| 2887 |
|
---|
[503] | 2888 | Material m;
|
---|
[440] | 2889 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2890 | exporter->SetForcedMaterial(m);
|
---|
| 2891 | exporter->SetWireframe();
|
---|
[503] | 2892 |
|
---|
[440] | 2893 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2894 |
|
---|
[482] | 2895 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2896 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2897 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2898 | //exporter->ResetForcedMaterial();
|
---|
| 2899 |
|
---|
[440] | 2900 | delete exporter;
|
---|
| 2901 | }
|
---|
| 2902 | }
|
---|
| 2903 |
|
---|
[477] | 2904 |
|
---|
| 2905 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2906 | {
|
---|
[477] | 2907 | const int leafOut = 10;
|
---|
[503] | 2908 |
|
---|
[477] | 2909 | ViewCell::NewMail();
|
---|
[440] | 2910 |
|
---|
[477] | 2911 | //-- some rays for output
|
---|
| 2912 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2913 |
|
---|
[477] | 2914 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2915 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2916 |
|
---|
[997] | 2917 | // sort view cells in order to find the largest view cells
|
---|
[587] | 2918 | if (0)
|
---|
[801] | 2919 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[587] | 2920 |
|
---|
[503] | 2921 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2922 |
|
---|
[478] | 2923 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2924 | {
|
---|
[478] | 2925 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2926 | VssRayContainer vcRays;
|
---|
| 2927 | Intersectable::NewMail();
|
---|
[582] | 2928 | ViewCell *vc;
|
---|
| 2929 |
|
---|
| 2930 | if (0)
|
---|
| 2931 | vc = mViewCells[i];
|
---|
| 2932 | else
|
---|
| 2933 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2934 |
|
---|
[478] | 2935 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2936 |
|
---|
[587] | 2937 | if(0)
|
---|
[477] | 2938 | {
|
---|
[587] | 2939 | // check whether we can add the current ray to the output rays
|
---|
| 2940 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2941 | {
|
---|
[587] | 2942 | BspRay *ray = mBspRays[k];
|
---|
| 2943 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2944 | {
|
---|
| 2945 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2946 | if (vc == leaf->GetViewCell())
|
---|
| 2947 | vcRays.push_back(ray->vssRay);
|
---|
| 2948 | }
|
---|
[477] | 2949 | }
|
---|
| 2950 | }
|
---|
[587] | 2951 |
|
---|
[478] | 2952 | //bspLeaves[j]->Mail();
|
---|
| 2953 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2954 |
|
---|
[478] | 2955 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2956 |
|
---|
[478] | 2957 | exporter->SetWireframe();
|
---|
[477] | 2958 |
|
---|
[478] | 2959 | Material m;//= RandomMaterial();
|
---|
| 2960 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2961 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2962 |
|
---|
[587] | 2963 | ExportViewCellGeometry(exporter, vc);
|
---|
| 2964 |
|
---|
[478] | 2965 | // export rays piercing this view cell
|
---|
| 2966 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2967 |
|
---|
[478] | 2968 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2969 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2970 |
|
---|
[478] | 2971 | ObjectPvsMap::const_iterator it,
|
---|
| 2972 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2973 |
|
---|
[478] | 2974 | exporter->SetFilled();
|
---|
[469] | 2975 |
|
---|
[478] | 2976 | // output PVS of view cell
|
---|
[503] | 2977 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2978 | {
|
---|
| 2979 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2980 |
|
---|
[478] | 2981 | if (!intersect->Mailed())
|
---|
| 2982 | {
|
---|
| 2983 | Material m = RandomMaterial();
|
---|
| 2984 | exporter->SetForcedMaterial(m);
|
---|
| 2985 |
|
---|
| 2986 | exporter->ExportIntersectable(intersect);
|
---|
| 2987 | intersect->Mail();
|
---|
[503] | 2988 | }
|
---|
[477] | 2989 | }
|
---|
[503] | 2990 |
|
---|
[478] | 2991 | DEL_PTR(exporter);
|
---|
| 2992 | cout << "finished" << endl;
|
---|
[477] | 2993 | }
|
---|
| 2994 |
|
---|
| 2995 | Debug << endl;
|
---|
[440] | 2996 | }
|
---|
| 2997 |
|
---|
[441] | 2998 |
|
---|
[693] | 2999 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3000 | {
|
---|
| 3001 | ViewCellContainer leaves;
|
---|
| 3002 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3003 |
|
---|
| 3004 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3005 |
|
---|
| 3006 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3007 | float subdivVol = 0;
|
---|
| 3008 | float newVol = 0;
|
---|
| 3009 |
|
---|
| 3010 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3011 | {
|
---|
| 3012 | BspNodeGeometry geom;
|
---|
| 3013 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3014 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3015 |
|
---|
| 3016 | const float lVol = geom.GetVolume();
|
---|
| 3017 |
|
---|
| 3018 | newVol += lVol;
|
---|
| 3019 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3020 |
|
---|
[704] | 3021 | float thres = 0.9f;
|
---|
[694] | 3022 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3023 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3024 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3025 | }
|
---|
| 3026 |
|
---|
| 3027 | Debug << "exact volume: " << vol << endl;
|
---|
| 3028 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3029 | Debug << "new volume: " << newVol << endl;
|
---|
| 3030 | }
|
---|
| 3031 |
|
---|
| 3032 |
|
---|
[580] | 3033 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3034 | ViewCell *vc,
|
---|
[1047] | 3035 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 3036 | {
|
---|
[1027] | 3037 | // export mesh if available
|
---|
[482] | 3038 | if (vc->GetMesh())
|
---|
| 3039 | {
|
---|
[587] | 3040 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3041 | return;
|
---|
[482] | 3042 | }
|
---|
[1027] | 3043 | // otherwise construct from leaves
|
---|
[660] | 3044 | if (clipPlane)
|
---|
[591] | 3045 | {
|
---|
[1047] | 3046 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3047 |
|
---|
[726] | 3048 | ViewCellContainer leaves;
|
---|
| 3049 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3050 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3051 |
|
---|
[726] | 3052 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3053 | {
|
---|
[726] | 3054 | BspNodeGeometry geom;
|
---|
| 3055 |
|
---|
[681] | 3056 | BspNodeGeometry front;
|
---|
| 3057 | BspNodeGeometry back;
|
---|
[591] | 3058 |
|
---|
[726] | 3059 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3060 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 3061 |
|
---|
[726] | 3062 | const float eps = 0.00000001f;
|
---|
[1047] | 3063 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3064 |
|
---|
| 3065 | if (cf == -1)
|
---|
| 3066 | {
|
---|
| 3067 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3068 | }
|
---|
| 3069 | else if (cf == 0)
|
---|
| 3070 | {
|
---|
| 3071 | geom.SplitGeometry(front,
|
---|
| 3072 | back,
|
---|
[1047] | 3073 | plane,
|
---|
[726] | 3074 | mViewSpaceBox,
|
---|
| 3075 | eps);
|
---|
| 3076 |
|
---|
| 3077 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 3078 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 3079 | if (back.Valid())
|
---|
| 3080 | {
|
---|
| 3081 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3082 | }
|
---|
| 3083 | }
|
---|
[681] | 3084 | }
|
---|
[591] | 3085 | }
|
---|
| 3086 | else
|
---|
| 3087 | {
|
---|
[726] | 3088 | BspNodeGeometry geom;
|
---|
| 3089 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3090 |
|
---|
[678] | 3091 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 3092 | }
|
---|
[482] | 3093 | }
|
---|
| 3094 |
|
---|
[503] | 3095 |
|
---|
| 3096 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3097 | {
|
---|
[726] | 3098 | // delete previous mesh
|
---|
| 3099 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 3100 | BspNodeGeometry geom;
|
---|
| 3101 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3102 |
|
---|
[1001] | 3103 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3104 |
|
---|
[840] | 3105 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3106 | vc->SetMesh(mesh);
|
---|
[503] | 3107 | }
|
---|
| 3108 |
|
---|
[551] | 3109 |
|
---|
[587] | 3110 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3111 | const bool createMesh)
|
---|
[502] | 3112 | {
|
---|
[587] | 3113 | float area = 0;
|
---|
| 3114 | float volume = 0;
|
---|
[572] | 3115 |
|
---|
[587] | 3116 | ViewCellContainer leaves;
|
---|
| 3117 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3118 |
|
---|
| 3119 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3120 |
|
---|
[693] | 3121 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3122 | {
|
---|
| 3123 | BspNodeGeometry geom;
|
---|
| 3124 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3125 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3126 |
|
---|
[719] | 3127 | const float lVol = geom.GetVolume();
|
---|
| 3128 | const float lArea = geom.GetArea();
|
---|
[693] | 3129 |
|
---|
| 3130 | //(*it)->SetVolume(vol);
|
---|
| 3131 | //(*it)->SetArea(area);
|
---|
| 3132 |
|
---|
| 3133 | area += lArea;
|
---|
| 3134 | volume += lVol;
|
---|
| 3135 |
|
---|
| 3136 | CreateMesh(*it);
|
---|
[587] | 3137 | }
|
---|
| 3138 |
|
---|
| 3139 | viewCell->SetVolume(volume);
|
---|
| 3140 | viewCell->SetArea(area);
|
---|
[502] | 3141 | }
|
---|
| 3142 |
|
---|
[580] | 3143 |
|
---|
[879] | 3144 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3145 | {
|
---|
[1021] | 3146 | if (!ViewCellsConstructed())
|
---|
[587] | 3147 | return NULL;
|
---|
| 3148 |
|
---|
| 3149 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 3150 | return NULL;
|
---|
| 3151 |
|
---|
| 3152 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3153 | }
|
---|
| 3154 |
|
---|
| 3155 |
|
---|
[587] | 3156 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3157 | vector<MergeCandidate> &candidates)
|
---|
| 3158 | {
|
---|
| 3159 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3160 |
|
---|
| 3161 | if (mUseRaysForMerge)
|
---|
| 3162 | {
|
---|
| 3163 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3164 | }
|
---|
| 3165 | else
|
---|
| 3166 | {
|
---|
| 3167 | vector<BspLeaf *> leaves;
|
---|
| 3168 | mBspTree->CollectLeaves(leaves);
|
---|
| 3169 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3170 | }
|
---|
| 3171 |
|
---|
| 3172 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3173 | }
|
---|
| 3174 |
|
---|
| 3175 |
|
---|
[440] | 3176 |
|
---|
[1047] | 3177 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3178 | const bool exportPvs,
|
---|
| 3179 | const ObjectContainer &objects)
|
---|
[590] | 3180 | {
|
---|
[1077] | 3181 | #if TODO
|
---|
[590] | 3182 | cout << "exporting view cells to xml ... ";
|
---|
| 3183 | std::ofstream stream;
|
---|
[503] | 3184 |
|
---|
[590] | 3185 | // for output we need unique ids for each view cell
|
---|
| 3186 | CreateUniqueViewCellIds();
|
---|
[503] | 3187 |
|
---|
[590] | 3188 |
|
---|
| 3189 | stream.open(filename.c_str());
|
---|
| 3190 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3191 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3192 |
|
---|
| 3193 | //-- the view space bounding box
|
---|
| 3194 | stream << "<ViewSpaceBox"
|
---|
| 3195 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3196 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 3197 |
|
---|
| 3198 | //-- the type of the view cells hierarchy
|
---|
[975] | 3199 |
|
---|
[840] | 3200 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
[975] | 3201 | stream << "<Hierarchy name=\"vspBspTree\" >" << endl;
|
---|
[840] | 3202 |
|
---|
[590] | 3203 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 3204 | stream << "<ViewCells>" << endl;
|
---|
[610] | 3205 |
|
---|
[871] | 3206 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[590] | 3207 |
|
---|
| 3208 | stream << "</ViewCells>" << endl;
|
---|
| 3209 |
|
---|
| 3210 | //-- load the hierarchy
|
---|
| 3211 | stream << "<Hierarchy>" << endl;
|
---|
| 3212 | mBspTree->Export(stream);
|
---|
| 3213 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 3214 |
|
---|
[975] | 3215 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3216 | stream.close();
|
---|
| 3217 |
|
---|
| 3218 | cout << "finished" << endl;
|
---|
[955] | 3219 | #endif
|
---|
[590] | 3220 | return true;
|
---|
| 3221 | }
|
---|
| 3222 |
|
---|
| 3223 |
|
---|
[650] | 3224 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3225 | {
|
---|
[752] | 3226 | // terminate recursion
|
---|
[650] | 3227 | if (root->IsLeaf())
|
---|
| 3228 | {
|
---|
[752] | 3229 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3230 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3231 | return leaf->GetViewCell();
|
---|
[650] | 3232 | }
|
---|
| 3233 |
|
---|
| 3234 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3235 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3236 |
|
---|
[752] | 3237 | // evaluate merge cost for priority traversal
|
---|
[650] | 3238 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3239 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3240 |
|
---|
[650] | 3241 | float volume = 0;
|
---|
[649] | 3242 |
|
---|
[650] | 3243 | BspNode *front = interior->GetFront();
|
---|
| 3244 | BspNode *back = interior->GetBack();
|
---|
[649] | 3245 |
|
---|
[752] | 3246 |
|
---|
| 3247 | //-- recursivly compute child hierarchies
|
---|
[650] | 3248 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3249 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3250 |
|
---|
[752] | 3251 |
|
---|
| 3252 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3253 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3254 |
|
---|
[650] | 3255 | volume += backVc->GetVolume();
|
---|
| 3256 | volume += frontVc->GetVolume();
|
---|
[649] | 3257 |
|
---|
[650] | 3258 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3259 |
|
---|
[650] | 3260 | return viewCellInterior;
|
---|
[610] | 3261 | }
|
---|
| 3262 |
|
---|
[650] | 3263 |
|
---|
[590] | 3264 | /************************************************************************/
|
---|
| 3265 | /* KdViewCellsManager implementation */
|
---|
| 3266 | /************************************************************************/
|
---|
| 3267 |
|
---|
| 3268 |
|
---|
| 3269 |
|
---|
[1264] | 3270 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3271 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3272 | {
|
---|
| 3273 | }
|
---|
| 3274 |
|
---|
[605] | 3275 |
|
---|
[471] | 3276 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3277 | {
|
---|
[479] | 3278 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3279 | if (0)
|
---|
| 3280 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3281 | else
|
---|
| 3282 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3283 | }
|
---|
| 3284 |
|
---|
| 3285 |
|
---|
| 3286 |
|
---|
[479] | 3287 |
|
---|
[480] | 3288 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3289 | {
|
---|
| 3290 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3291 | }
|
---|
[479] | 3292 |
|
---|
[519] | 3293 |
|
---|
[574] | 3294 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3295 | const VssRayContainer &rays)
|
---|
[440] | 3296 | {
|
---|
[441] | 3297 | // if view cells already constructed
|
---|
[440] | 3298 | if (ViewCellsConstructed())
|
---|
| 3299 | return 0;
|
---|
[441] | 3300 |
|
---|
[440] | 3301 | mKdTree->Construct();
|
---|
| 3302 |
|
---|
[480] | 3303 | mTotalAreaValid = false;
|
---|
[469] | 3304 | // create the view cells
|
---|
| 3305 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 3306 |
|
---|
[480] | 3307 | // cast rays
|
---|
[574] | 3308 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3309 |
|
---|
[479] | 3310 | EvaluateViewCellsStats();
|
---|
[660] | 3311 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3312 |
|
---|
[440] | 3313 | return 0;
|
---|
| 3314 | }
|
---|
| 3315 |
|
---|
[587] | 3316 |
|
---|
[440] | 3317 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3318 | {
|
---|
| 3319 | return mKdTree->GetRoot() != NULL;
|
---|
| 3320 | }
|
---|
| 3321 |
|
---|
[1020] | 3322 |
|
---|
[503] | 3323 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3324 | const VssRayContainer &rays)
|
---|
[440] | 3325 | {
|
---|
| 3326 | return 0;
|
---|
| 3327 | }
|
---|
| 3328 |
|
---|
[1020] | 3329 |
|
---|
[440] | 3330 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3331 | const VssRayContainer &sampleRays)
|
---|
[440] | 3332 | {
|
---|
[441] | 3333 | if (!ViewCellsConstructed())
|
---|
| 3334 | return;
|
---|
| 3335 |
|
---|
[469] | 3336 | // using view cells instead of the kd PVS of objects
|
---|
| 3337 | const bool useViewCells = true;
|
---|
| 3338 | bool exportRays = false;
|
---|
[440] | 3339 |
|
---|
| 3340 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3341 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3342 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3343 |
|
---|
[469] | 3344 | if (useViewCells)
|
---|
[440] | 3345 | {
|
---|
[469] | 3346 | const int leafOut = 10;
|
---|
[503] | 3347 |
|
---|
[469] | 3348 | ViewCell::NewMail();
|
---|
[503] | 3349 |
|
---|
[469] | 3350 | //-- some rays for output
|
---|
| 3351 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3352 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3353 |
|
---|
| 3354 | //-- some random view cells and rays for output
|
---|
| 3355 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3356 |
|
---|
[469] | 3357 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3358 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3359 |
|
---|
[469] | 3360 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3361 | {
|
---|
[469] | 3362 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3363 | RayContainer vcRays;
|
---|
[503] | 3364 |
|
---|
[469] | 3365 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3366 | #if 0
|
---|
[469] | 3367 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3368 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3369 | {
|
---|
[469] | 3370 | Ray *ray = sampleRays[k];
|
---|
[503] | 3371 |
|
---|
[469] | 3372 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3373 | {
|
---|
| 3374 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3375 |
|
---|
| 3376 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3377 | {
|
---|
| 3378 | vcRays.push_back(ray);
|
---|
| 3379 | }
|
---|
| 3380 | }
|
---|
[479] | 3381 | }
|
---|
[503] | 3382 | #endif
|
---|
[469] | 3383 | Intersectable::NewMail();
|
---|
[503] | 3384 |
|
---|
[469] | 3385 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 3386 |
|
---|
[469] | 3387 | //bspLeaves[j]->Mail();
|
---|
| 3388 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 3389 |
|
---|
[469] | 3390 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3391 | exporter->SetFilled();
|
---|
| 3392 |
|
---|
| 3393 | exporter->SetWireframe();
|
---|
| 3394 | //exporter->SetFilled();
|
---|
[503] | 3395 |
|
---|
[469] | 3396 | Material m;//= RandomMaterial();
|
---|
| 3397 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3398 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3399 |
|
---|
[469] | 3400 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3401 | exporter->ExportBox(box);
|
---|
| 3402 |
|
---|
| 3403 | // export rays piercing this view cell
|
---|
[503] | 3404 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3405 |
|
---|
[469] | 3406 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3407 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3408 |
|
---|
[469] | 3409 | // exporter->SetWireframe();
|
---|
| 3410 | exporter->SetFilled();
|
---|
[503] | 3411 |
|
---|
[469] | 3412 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3413 | // -- output PVS of view cell
|
---|
[1189] | 3414 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3415 | {
|
---|
| 3416 | Intersectable *intersect = (*it).first;
|
---|
| 3417 | if (!intersect->Mailed())
|
---|
| 3418 | {
|
---|
| 3419 | exporter->ExportIntersectable(intersect);
|
---|
| 3420 | intersect->Mail();
|
---|
[503] | 3421 | }
|
---|
[440] | 3422 | }
|
---|
[503] | 3423 |
|
---|
[469] | 3424 | DEL_PTR(exporter);
|
---|
| 3425 | cout << "finished" << endl;
|
---|
[440] | 3426 | }
|
---|
[469] | 3427 |
|
---|
| 3428 | DEL_PTR(rays);
|
---|
[440] | 3429 | }
|
---|
[469] | 3430 | else // using kd PVS of objects
|
---|
| 3431 | {
|
---|
| 3432 | for (int i = 0; i < limit; ++ i)
|
---|
| 3433 | {
|
---|
| 3434 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3435 |
|
---|
[469] | 3436 | // check whether we can add this to the rays
|
---|
[503] | 3437 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3438 | {
|
---|
| 3439 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3440 | {
|
---|
| 3441 | rays[j].push_back(ray);
|
---|
| 3442 | }
|
---|
| 3443 | }
|
---|
| 3444 | }
|
---|
[440] | 3445 |
|
---|
[503] | 3446 | if (exportRays)
|
---|
[469] | 3447 | {
|
---|
| 3448 | Exporter *exporter = NULL;
|
---|
| 3449 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3450 | exporter->SetWireframe();
|
---|
| 3451 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3452 |
|
---|
[728] | 3453 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3454 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3455 |
|
---|
| 3456 | exporter->SetFilled();
|
---|
[503] | 3457 |
|
---|
[469] | 3458 | delete exporter;
|
---|
| 3459 | }
|
---|
[440] | 3460 |
|
---|
[503] | 3461 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3462 | {
|
---|
| 3463 | Intersectable *object = objects[k];
|
---|
[503] | 3464 | char s[64];
|
---|
[469] | 3465 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 3466 |
|
---|
[469] | 3467 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3468 | exporter->SetWireframe();
|
---|
[503] | 3469 |
|
---|
[1233] | 3470 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 3471 | Intersectable::NewMail();
|
---|
[503] | 3472 |
|
---|
[469] | 3473 | // avoid adding the object to the list
|
---|
| 3474 | object->Mail();
|
---|
| 3475 | ObjectContainer visibleObjects;
|
---|
[503] | 3476 |
|
---|
[1233] | 3477 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3478 | {
|
---|
[1233] | 3479 | KdNode *node = (*kit).first;
|
---|
[469] | 3480 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3481 |
|
---|
[469] | 3482 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3483 | }
|
---|
[503] | 3484 |
|
---|
[469] | 3485 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3486 | exporter->SetFilled();
|
---|
[503] | 3487 |
|
---|
[469] | 3488 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3489 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3490 |
|
---|
[469] | 3491 | Material m;
|
---|
| 3492 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3493 | exporter->SetForcedMaterial(m);
|
---|
| 3494 | exporter->ExportIntersectable(object);
|
---|
[503] | 3495 |
|
---|
[469] | 3496 | delete exporter;
|
---|
[440] | 3497 | }
|
---|
[503] | 3498 | }
|
---|
[440] | 3499 | }
|
---|
| 3500 |
|
---|
[469] | 3501 |
|
---|
[580] | 3502 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3503 | {
|
---|
| 3504 | return new KdViewCell(mesh);
|
---|
| 3505 | }
|
---|
[482] | 3506 |
|
---|
[580] | 3507 |
|
---|
| 3508 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3509 | ViewCell *vc,
|
---|
[1047] | 3510 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 3511 | {
|
---|
[580] | 3512 | ViewCellContainer leaves;
|
---|
[485] | 3513 |
|
---|
[580] | 3514 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3515 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3516 |
|
---|
| 3517 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3518 | {
|
---|
| 3519 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 3520 |
|
---|
| 3521 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 3522 | }
|
---|
[482] | 3523 | }
|
---|
| 3524 |
|
---|
| 3525 |
|
---|
[440] | 3526 | int KdViewCellsManager::GetType() const
|
---|
| 3527 | {
|
---|
| 3528 | return ViewCellsManager::KD;
|
---|
| 3529 | }
|
---|
| 3530 |
|
---|
| 3531 |
|
---|
[441] | 3532 |
|
---|
[440] | 3533 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3534 | {
|
---|
| 3535 | KdNode *node = leaf;
|
---|
| 3536 |
|
---|
| 3537 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3538 | node = node->mParent;
|
---|
[1176] | 3539 |
|
---|
[440] | 3540 | return node;
|
---|
| 3541 | }
|
---|
| 3542 |
|
---|
[469] | 3543 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3544 | const Vector3 &termination,
|
---|
| 3545 | ViewCellContainer &viewcells)
|
---|
[466] | 3546 | {
|
---|
[469] | 3547 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3548 | }
|
---|
| 3549 |
|
---|
[469] | 3550 |
|
---|
[503] | 3551 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3552 | {
|
---|
[551] | 3553 | // TODO
|
---|
[503] | 3554 | }
|
---|
| 3555 |
|
---|
[580] | 3556 |
|
---|
| 3557 |
|
---|
| 3558 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3559 | vector<MergeCandidate> &candidates)
|
---|
| 3560 | {
|
---|
| 3561 | // TODO
|
---|
| 3562 | }
|
---|
| 3563 |
|
---|
[1021] | 3564 |
|
---|
| 3565 |
|
---|
| 3566 |
|
---|
[503] | 3567 | /**************************************************************************/
|
---|
| 3568 | /* VspBspViewCellsManager implementation */
|
---|
| 3569 | /**************************************************************************/
|
---|
[482] | 3570 |
|
---|
[503] | 3571 |
|
---|
[1264] | 3572 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 3573 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 3574 | {
|
---|
[1004] | 3575 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3576 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3577 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3578 | }
|
---|
| 3579 |
|
---|
[477] | 3580 |
|
---|
[475] | 3581 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3582 | {
|
---|
| 3583 | }
|
---|
| 3584 |
|
---|
[477] | 3585 |
|
---|
[471] | 3586 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3587 | {
|
---|
[551] | 3588 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3589 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3590 | else
|
---|
| 3591 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3592 | }
|
---|
| 3593 |
|
---|
[477] | 3594 |
|
---|
[480] | 3595 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3596 | {
|
---|
[581] | 3597 | // view cells tree constructed
|
---|
| 3598 | if (!ViewCellsTreeConstructed())
|
---|
| 3599 | {
|
---|
[590] | 3600 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3601 | }
|
---|
| 3602 | else
|
---|
[1264] | 3603 | {
|
---|
| 3604 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3605 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3606 | }
|
---|
[480] | 3607 | }
|
---|
| 3608 |
|
---|
| 3609 |
|
---|
[1021] | 3610 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3611 | vector<MergeCandidate> &candidates)
|
---|
| 3612 | {
|
---|
| 3613 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3614 |
|
---|
| 3615 | if (mUseRaysForMerge)
|
---|
| 3616 | {
|
---|
| 3617 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3618 | }
|
---|
| 3619 | else
|
---|
| 3620 | {
|
---|
| 3621 | vector<BspLeaf *> leaves;
|
---|
| 3622 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3623 |
|
---|
| 3624 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3625 | }
|
---|
| 3626 |
|
---|
| 3627 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3628 | }
|
---|
| 3629 |
|
---|
| 3630 |
|
---|
[442] | 3631 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3632 | {
|
---|
| 3633 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3634 | }
|
---|
| 3635 |
|
---|
[462] | 3636 |
|
---|
[442] | 3637 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3638 | {
|
---|
| 3639 | return new BspViewCell(mesh);
|
---|
| 3640 | }
|
---|
| 3641 |
|
---|
[569] | 3642 |
|
---|
[574] | 3643 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3644 | const VssRayContainer &rays)
|
---|
[442] | 3645 | {
|
---|
[710] | 3646 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3647 |
|
---|
[503] | 3648 | // if view cells were already constructed
|
---|
| 3649 | if (ViewCellsConstructed())
|
---|
| 3650 | return 0;
|
---|
[442] | 3651 |
|
---|
[503] | 3652 | int sampleContributions = 0;
|
---|
| 3653 |
|
---|
| 3654 | VssRayContainer sampleRays;
|
---|
| 3655 |
|
---|
[574] | 3656 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3657 |
|
---|
[469] | 3658 | VssRayContainer constructionRays;
|
---|
| 3659 | VssRayContainer savedRays;
|
---|
[442] | 3660 |
|
---|
[660] | 3661 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3662 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3663 |
|
---|
[574] | 3664 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3665 |
|
---|
[574] | 3666 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3667 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3668 |
|
---|
[1002] | 3669 | long startTime;
|
---|
[564] | 3670 |
|
---|
[667] | 3671 | if (1)
|
---|
[1221] | 3672 | {
|
---|
[667] | 3673 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 3674 | }
|
---|
[666] | 3675 | else
|
---|
[1221] | 3676 | {
|
---|
[667] | 3677 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 3678 | }
|
---|
[667] | 3679 |
|
---|
[490] | 3680 | // collapse invalid regions
|
---|
[491] | 3681 | cout << "collapsing invalid tree regions ... ";
|
---|
[1002] | 3682 | startTime = GetTime();
|
---|
| 3683 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3684 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3685 | << " seconds" << endl;
|
---|
| 3686 |
|
---|
[495] | 3687 | cout << "finished" << endl;
|
---|
[503] | 3688 |
|
---|
[1221] | 3689 | //-- stats after construction
|
---|
| 3690 |
|
---|
[660] | 3691 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3692 |
|
---|
[480] | 3693 | ResetViewCells();
|
---|
[660] | 3694 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3695 |
|
---|
[491] | 3696 |
|
---|
[495] | 3697 | startTime = GetTime();
|
---|
[503] | 3698 |
|
---|
[491] | 3699 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3700 |
|
---|
[469] | 3701 | // recast rest of rays
|
---|
[605] | 3702 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3703 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3704 |
|
---|
[491] | 3705 | cout << "finished" << endl;
|
---|
| 3706 |
|
---|
[503] | 3707 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3708 | << " secs" << endl;
|
---|
[442] | 3709 |
|
---|
[485] | 3710 | cout << "construction finished" << endl;
|
---|
[503] | 3711 |
|
---|
[1077] | 3712 |
|
---|
[719] | 3713 | if (0)
|
---|
| 3714 | {
|
---|
[1077] | 3715 | //-- real meshes are contructed at this stage
|
---|
[719] | 3716 | cout << "finalizing view cells ... ";
|
---|
| 3717 | FinalizeViewCells(true);
|
---|
| 3718 | cout << "finished" << endl;
|
---|
| 3719 | }
|
---|
| 3720 |
|
---|
[442] | 3721 | return sampleContributions;
|
---|
| 3722 | }
|
---|
| 3723 |
|
---|
[489] | 3724 |
|
---|
[503] | 3725 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3726 | const ObjectContainer &objects)
|
---|
[475] | 3727 | {
|
---|
[442] | 3728 | int vcSize = 0;
|
---|
| 3729 | int pvsSize = 0;
|
---|
| 3730 |
|
---|
[650] | 3731 | //-- merge view cells
|
---|
| 3732 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3733 | long startTime = GetTime();
|
---|
| 3734 |
|
---|
| 3735 |
|
---|
[597] | 3736 | if (mMergeViewCells)
|
---|
| 3737 | {
|
---|
| 3738 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3739 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3740 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3741 | }
|
---|
| 3742 | else
|
---|
| 3743 | {
|
---|
[710] | 3744 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3745 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3746 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3747 |
|
---|
| 3748 | // compute pvs
|
---|
| 3749 | ObjectPvs pvs;
|
---|
| 3750 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3751 | }
|
---|
[442] | 3752 |
|
---|
[666] | 3753 | if (1)
|
---|
| 3754 | {
|
---|
| 3755 | char mstats[100];
|
---|
[752] | 3756 | ObjectPvs pvs;
|
---|
| 3757 |
|
---|
[1004] | 3758 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3759 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3760 | }
|
---|
[485] | 3761 |
|
---|
[650] | 3762 | //-- stats and visualizations
|
---|
| 3763 | cout << "finished merging" << endl;
|
---|
| 3764 | cout << "merged view cells in "
|
---|
| 3765 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3766 |
|
---|
[650] | 3767 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3768 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3769 |
|
---|
| 3770 |
|
---|
[600] | 3771 | int savedColorCode = mColorCode;
|
---|
| 3772 |
|
---|
[660] | 3773 | // get currently active view cell set
|
---|
| 3774 | ResetViewCells();
|
---|
| 3775 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3776 |
|
---|
[485] | 3777 | //BspLeaf::NewMail();
|
---|
[667] | 3778 | if (1) // export merged view cells
|
---|
[483] | 3779 | {
|
---|
[600] | 3780 | mColorCode = 0;
|
---|
[744] | 3781 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3782 |
|
---|
[485] | 3783 | cout << "exporting view cells after merge ... ";
|
---|
| 3784 |
|
---|
| 3785 | if (exporter)
|
---|
[483] | 3786 | {
|
---|
[600] | 3787 | if (0)
|
---|
| 3788 | exporter->SetWireframe();
|
---|
| 3789 | else
|
---|
| 3790 | exporter->SetFilled();
|
---|
| 3791 |
|
---|
| 3792 | ExportViewCellsForViz(exporter);
|
---|
| 3793 |
|
---|
[485] | 3794 | if (mExportGeometry)
|
---|
[483] | 3795 | {
|
---|
[485] | 3796 | Material m;
|
---|
| 3797 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3798 | exporter->SetForcedMaterial(m);
|
---|
| 3799 | exporter->SetFilled();
|
---|
[442] | 3800 |
|
---|
[485] | 3801 | exporter->ExportGeometry(objects);
|
---|
[442] | 3802 | }
|
---|
[485] | 3803 |
|
---|
[600] | 3804 | delete exporter;
|
---|
| 3805 | }
|
---|
| 3806 | cout << "finished" << endl;
|
---|
| 3807 | }
|
---|
| 3808 |
|
---|
[1176] | 3809 | if (0)
|
---|
[600] | 3810 | {
|
---|
[1176] | 3811 | mColorCode = 1; // export merged view cells using pvs coding
|
---|
[744] | 3812 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 3813 |
|
---|
[600] | 3814 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3815 |
|
---|
| 3816 | if (exporter)
|
---|
| 3817 | {
|
---|
[598] | 3818 | if (0)
|
---|
| 3819 | exporter->SetWireframe();
|
---|
| 3820 | else
|
---|
| 3821 | exporter->SetFilled();
|
---|
| 3822 |
|
---|
| 3823 | ExportViewCellsForViz(exporter);
|
---|
| 3824 |
|
---|
[600] | 3825 | if (mExportGeometry)
|
---|
| 3826 | {
|
---|
| 3827 | Material m;
|
---|
| 3828 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3829 | exporter->SetForcedMaterial(m);
|
---|
| 3830 | exporter->SetFilled();
|
---|
| 3831 |
|
---|
| 3832 | exporter->ExportGeometry(objects);
|
---|
| 3833 | }
|
---|
| 3834 |
|
---|
[485] | 3835 | delete exporter;
|
---|
[442] | 3836 | }
|
---|
[485] | 3837 | cout << "finished" << endl;
|
---|
[442] | 3838 | }
|
---|
[600] | 3839 |
|
---|
| 3840 | mColorCode = savedColorCode;
|
---|
| 3841 |
|
---|
[503] | 3842 | }
|
---|
[475] | 3843 |
|
---|
[503] | 3844 |
|
---|
[609] | 3845 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3846 | {
|
---|
[609] | 3847 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3848 | }
|
---|
| 3849 |
|
---|
| 3850 |
|
---|
[609] | 3851 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3852 | {
|
---|
| 3853 | if (!viewCell->IsLeaf())
|
---|
| 3854 | {
|
---|
| 3855 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3856 |
|
---|
[609] | 3857 | return bspVc->mLeaf;
|
---|
| 3858 | }
|
---|
[607] | 3859 | else
|
---|
| 3860 | {
|
---|
| 3861 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3862 |
|
---|
| 3863 | // cannot be node of binary tree
|
---|
| 3864 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3865 | return NULL;
|
---|
[607] | 3866 |
|
---|
| 3867 | ViewCell *left = interior->mChildren[0];
|
---|
| 3868 | ViewCell *right = interior->mChildren[1];
|
---|
| 3869 |
|
---|
[609] | 3870 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3871 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3872 |
|
---|
[609] | 3873 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3874 | {
|
---|
[609] | 3875 | return leftNode->GetParent();
|
---|
[607] | 3876 | }
|
---|
[609] | 3877 | }
|
---|
[607] | 3878 |
|
---|
[609] | 3879 | return NULL;
|
---|
[607] | 3880 | }
|
---|
| 3881 |
|
---|
| 3882 |
|
---|
[564] | 3883 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3884 | const ObjectContainer &objects)
|
---|
[503] | 3885 | {
|
---|
[485] | 3886 | Debug << "render time before refine:" << endl;
|
---|
| 3887 | mRenderer->RenderScene();
|
---|
[503] | 3888 | SimulationStatistics ss;
|
---|
[485] | 3889 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3890 | Debug << ss << endl;
|
---|
| 3891 |
|
---|
[489] | 3892 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3893 | long startTime = GetTime();
|
---|
[485] | 3894 |
|
---|
| 3895 | // refining the merged view cells
|
---|
[580] | 3896 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3897 |
|
---|
[442] | 3898 | //-- stats and visualizations
|
---|
| 3899 | cout << "finished" << endl;
|
---|
[485] | 3900 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3901 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3902 |
|
---|
[485] | 3903 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3904 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3905 | }
|
---|
[495] | 3906 |
|
---|
[517] | 3907 |
|
---|
[503] | 3908 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3909 | const VssRayContainer &rays)
|
---|
[840] | 3910 | {
|
---|
[503] | 3911 | if (!ViewCellsConstructed())
|
---|
| 3912 | {
|
---|
[517] | 3913 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3914 | return 0;
|
---|
| 3915 | }
|
---|
[520] | 3916 |
|
---|
[564] | 3917 |
|
---|
[609] | 3918 | // view cells already finished before post processing step
|
---|
| 3919 | // (i.e. because they were loaded)
|
---|
[520] | 3920 | if (mViewCellsFinished)
|
---|
[542] | 3921 | {
|
---|
[551] | 3922 | FinalizeViewCells(true);
|
---|
[542] | 3923 | EvaluateViewCellsStats();
|
---|
[577] | 3924 |
|
---|
[517] | 3925 | return 0;
|
---|
[542] | 3926 | }
|
---|
[448] | 3927 |
|
---|
[710] | 3928 | // check if new view cells turned invalid
|
---|
| 3929 | int minPvs, maxPvs;
|
---|
[564] | 3930 |
|
---|
[710] | 3931 | if (0)
|
---|
| 3932 | {
|
---|
| 3933 | minPvs = mMinPvsSize;
|
---|
| 3934 | maxPvs = mMaxPvsSize;
|
---|
| 3935 | }
|
---|
| 3936 | else
|
---|
| 3937 | {
|
---|
| 3938 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3939 | maxPvs = mMaxPvsSize;
|
---|
| 3940 | }
|
---|
[720] | 3941 |
|
---|
[710] | 3942 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3943 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3944 |
|
---|
| 3945 | SetValidity(minPvs, maxPvs);
|
---|
| 3946 |
|
---|
[574] | 3947 | // update valid view space according to valid view cells
|
---|
[720] | 3948 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3949 |
|
---|
[720] | 3950 | // area has to be recomputed
|
---|
[574] | 3951 | mTotalAreaValid = false;
|
---|
[517] | 3952 | VssRayContainer postProcessRays;
|
---|
[605] | 3953 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3954 |
|
---|
[517] | 3955 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3956 |
|
---|
[517] | 3957 |
|
---|
[552] | 3958 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3959 | // and to correct the rendering statistics
|
---|
[719] | 3960 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3961 |
|
---|
[597] | 3962 | //-- merge the individual view cells
|
---|
| 3963 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3964 |
|
---|
[720] | 3965 |
|
---|
| 3966 | // only for debugging purpose: test if the subdivision is valid
|
---|
[1122] | 3967 | if (0) TestSubdivision();
|
---|
[693] | 3968 |
|
---|
[597] | 3969 | //-- refines the merged view cells
|
---|
[720] | 3970 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3971 |
|
---|
[719] | 3972 |
|
---|
[660] | 3973 | //-- render simulation after merge + refine
|
---|
[605] | 3974 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3975 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3976 | SimulationStatistics ss;
|
---|
| 3977 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3978 |
|
---|
[580] | 3979 |
|
---|
[605] | 3980 | cout << " finished" << endl;
|
---|
| 3981 | cout << ss << endl;
|
---|
| 3982 | Debug << ss << endl;
|
---|
[600] | 3983 |
|
---|
| 3984 |
|
---|
| 3985 | //-- compression
|
---|
| 3986 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3987 | {
|
---|
[1161] | 3988 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 3989 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3990 |
|
---|
[752] | 3991 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3992 |
|
---|
[1161] | 3993 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 3994 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3995 | }
|
---|
| 3996 |
|
---|
[660] | 3997 |
|
---|
[517] | 3998 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 3999 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4000 |
|
---|
[574] | 4001 | // recompute view cell list and statistics
|
---|
[520] | 4002 | ResetViewCells();
|
---|
| 4003 |
|
---|
[719] | 4004 | // compute final meshes and volume / area
|
---|
| 4005 | if (1) FinalizeViewCells(true);
|
---|
[517] | 4006 |
|
---|
[508] | 4007 | // write view cells to disc
|
---|
| 4008 | if (mExportViewCells)
|
---|
| 4009 | {
|
---|
[840] | 4010 | char filename[100];
|
---|
[1004] | 4011 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 4012 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 4013 | }
|
---|
[517] | 4014 |
|
---|
[840] | 4015 |
|
---|
| 4016 | // export bounding boxes
|
---|
| 4017 | if (mExportBboxesForPvs)
|
---|
| 4018 | {
|
---|
| 4019 | char filename[100];
|
---|
[1004] | 4020 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[850] | 4021 |
|
---|
[840] | 4022 | ExportBoundingBoxes(filename, objects);
|
---|
[508] | 4023 | }
|
---|
[503] | 4024 |
|
---|
| 4025 | return 0;
|
---|
[442] | 4026 | }
|
---|
| 4027 |
|
---|
[490] | 4028 |
|
---|
[442] | 4029 | int VspBspViewCellsManager::GetType() const
|
---|
| 4030 | {
|
---|
| 4031 | return VSP_BSP;
|
---|
| 4032 | }
|
---|
| 4033 |
|
---|
| 4034 |
|
---|
[650] | 4035 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4036 | {
|
---|
[752] | 4037 | // terminate recursion
|
---|
[650] | 4038 | if (root->IsLeaf())
|
---|
| 4039 | {
|
---|
[752] | 4040 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4041 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4042 | return leaf->GetViewCell();
|
---|
[650] | 4043 | }
|
---|
| 4044 |
|
---|
[752] | 4045 |
|
---|
[650] | 4046 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4047 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4048 |
|
---|
[752] | 4049 | // evaluate merge cost for priority traversal
|
---|
[650] | 4050 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4051 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4052 |
|
---|
[650] | 4053 | float volume = 0;
|
---|
| 4054 |
|
---|
| 4055 | BspNode *front = interior->GetFront();
|
---|
| 4056 | BspNode *back = interior->GetBack();
|
---|
[649] | 4057 |
|
---|
[752] | 4058 |
|
---|
| 4059 | ObjectPvs frontPvs, backPvs;
|
---|
| 4060 |
|
---|
| 4061 | //-- recursivly compute child hierarchies
|
---|
[650] | 4062 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4063 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4064 |
|
---|
[752] | 4065 |
|
---|
| 4066 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4067 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4068 |
|
---|
| 4069 | volume += backVc->GetVolume();
|
---|
| 4070 | volume += frontVc->GetVolume();
|
---|
| 4071 |
|
---|
| 4072 | viewCellInterior->SetVolume(volume);
|
---|
| 4073 |
|
---|
| 4074 | return viewCellInterior;
|
---|
[609] | 4075 | }
|
---|
| 4076 |
|
---|
| 4077 |
|
---|
[490] | 4078 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4079 | {
|
---|
| 4080 | if (!ViewCellsConstructed())
|
---|
| 4081 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4082 |
|
---|
| 4083 | // TODO: set reasonable limit
|
---|
| 4084 | const int limit = 20;
|
---|
| 4085 |
|
---|
| 4086 | for (int i = 0; i < limit; ++ i)
|
---|
| 4087 | {
|
---|
[542] | 4088 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4089 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4090 | {
|
---|
| 4091 | return true;
|
---|
| 4092 | }
|
---|
| 4093 | }
|
---|
[997] | 4094 |
|
---|
[490] | 4095 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4096 | return false;
|
---|
| 4097 | }
|
---|
| 4098 |
|
---|
| 4099 |
|
---|
| 4100 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4101 | {
|
---|
[569] | 4102 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4103 | // validy update in preprocessor for all managers)
|
---|
| 4104 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4105 |
|
---|
[569] | 4106 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4107 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4108 | }
|
---|
| 4109 |
|
---|
| 4110 |
|
---|
[442] | 4111 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4112 | const VssRayContainer &sampleRays)
|
---|
[442] | 4113 | {
|
---|
| 4114 | if (!ViewCellsConstructed())
|
---|
| 4115 | return;
|
---|
| 4116 |
|
---|
[485] | 4117 | VssRayContainer visRays;
|
---|
| 4118 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 4119 |
|
---|
[1077] | 4120 | //-- export final view cell partition
|
---|
| 4121 |
|
---|
| 4122 | if (0)
|
---|
[1047] | 4123 | {
|
---|
| 4124 | // hack pvs
|
---|
[1052] | 4125 | //const int savedColorCode = mColorCode;
|
---|
| 4126 | //mColorCode = 1;
|
---|
[801] | 4127 |
|
---|
[1020] | 4128 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4129 |
|
---|
[442] | 4130 | if (exporter)
|
---|
| 4131 | {
|
---|
[580] | 4132 | cout << "exporting view cells after post process ... ";
|
---|
| 4133 |
|
---|
[600] | 4134 | if (0)
|
---|
[542] | 4135 | {
|
---|
[1004] | 4136 | // export view space box
|
---|
[542] | 4137 | exporter->SetWireframe();
|
---|
| 4138 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4139 | exporter->SetFilled();
|
---|
| 4140 | }
|
---|
| 4141 |
|
---|
[1052] | 4142 | Material m;
|
---|
| 4143 |
|
---|
| 4144 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4145 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4146 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4147 |
|
---|
| 4148 | exporter->SetForcedMaterial(m);
|
---|
| 4149 |
|
---|
| 4150 | if (0 && mExportGeometry)
|
---|
[542] | 4151 | {
|
---|
[485] | 4152 | exporter->ExportGeometry(objects);
|
---|
[542] | 4153 | }
|
---|
[489] | 4154 |
|
---|
| 4155 | // export rays
|
---|
[1047] | 4156 | if (0 && mExportRays)
|
---|
[489] | 4157 | {
|
---|
[1052] | 4158 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4159 | }
|
---|
[564] | 4160 |
|
---|
[801] | 4161 | //exporter->SetFilled();
|
---|
[1020] | 4162 |
|
---|
[1006] | 4163 | // HACK: export without clip plane
|
---|
| 4164 | const bool b = mUseClipPlaneForViz;
|
---|
[1052] | 4165 | //mUseClipPlaneForViz = false;
|
---|
[1020] | 4166 |
|
---|
[508] | 4167 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 4168 |
|
---|
[801] | 4169 | mUseClipPlaneForViz = b;
|
---|
[442] | 4170 | delete exporter;
|
---|
[1020] | 4171 |
|
---|
[580] | 4172 | cout << "finished" << endl;
|
---|
[442] | 4173 | }
|
---|
[600] | 4174 |
|
---|
[1052] | 4175 | //mColorCode = savedColorCode;
|
---|
[557] | 4176 | }
|
---|
[503] | 4177 |
|
---|
[1002] | 4178 |
|
---|
[600] | 4179 | if (0)
|
---|
[577] | 4180 | {
|
---|
| 4181 | cout << "exporting depth map ... ";
|
---|
| 4182 |
|
---|
| 4183 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4184 | if (exporter)
|
---|
| 4185 | {
|
---|
| 4186 | if (1)
|
---|
| 4187 | {
|
---|
| 4188 | exporter->SetWireframe();
|
---|
| 4189 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4190 | exporter->SetFilled();
|
---|
| 4191 | }
|
---|
| 4192 |
|
---|
| 4193 | if (mExportGeometry)
|
---|
| 4194 | {
|
---|
| 4195 | exporter->ExportGeometry(objects);
|
---|
| 4196 | }
|
---|
| 4197 |
|
---|
[1143] | 4198 | const int maxDepth = mVspBspTree->GetStatistics().maxDepth;
|
---|
[577] | 4199 |
|
---|
| 4200 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4201 |
|
---|
| 4202 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4203 | {
|
---|
[582] | 4204 | ViewCell *vc = *vit;
|
---|
[577] | 4205 |
|
---|
[580] | 4206 | ViewCellContainer leaves;
|
---|
| 4207 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4208 |
|
---|
[580] | 4209 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4210 |
|
---|
| 4211 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4212 | {
|
---|
[580] | 4213 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4214 |
|
---|
| 4215 | Material m;
|
---|
| 4216 |
|
---|
| 4217 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4218 | m.mDiffuseColor.r = relDepth;
|
---|
| 4219 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4220 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4221 |
|
---|
| 4222 | exporter->SetForcedMaterial(m);
|
---|
| 4223 |
|
---|
| 4224 |
|
---|
| 4225 | BspNodeGeometry geom;
|
---|
| 4226 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4227 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4228 | }
|
---|
| 4229 | }
|
---|
| 4230 |
|
---|
| 4231 | delete exporter;
|
---|
| 4232 | }
|
---|
| 4233 |
|
---|
| 4234 |
|
---|
| 4235 | cout << "finished" << endl;
|
---|
| 4236 | }
|
---|
| 4237 |
|
---|
[442] | 4238 | //-- visualization of the BSP splits
|
---|
| 4239 | bool exportSplits = false;
|
---|
[1004] | 4240 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4241 |
|
---|
[442] | 4242 | if (exportSplits)
|
---|
| 4243 | {
|
---|
| 4244 | cout << "exporting splits ... ";
|
---|
[485] | 4245 | ExportSplits(objects, visRays);
|
---|
[442] | 4246 | cout << "finished" << endl;
|
---|
| 4247 | }
|
---|
| 4248 |
|
---|
[542] | 4249 | //-- export single view cells
|
---|
[485] | 4250 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4251 | }
|
---|
| 4252 |
|
---|
[503] | 4253 |
|
---|
[485] | 4254 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4255 | const VssRayContainer &rays)
|
---|
[442] | 4256 | {
|
---|
| 4257 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4258 |
|
---|
[503] | 4259 | if (exporter)
|
---|
| 4260 | {
|
---|
| 4261 | Material m;
|
---|
[442] | 4262 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4263 | exporter->SetForcedMaterial(m);
|
---|
| 4264 | exporter->SetWireframe();
|
---|
[503] | 4265 |
|
---|
[448] | 4266 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4267 |
|
---|
| 4268 | // take forced material, else big scenes cannot be viewed
|
---|
| 4269 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4270 | exporter->SetForcedMaterial(m);
|
---|
| 4271 | exporter->SetFilled();
|
---|
| 4272 |
|
---|
| 4273 | exporter->ResetForcedMaterial();
|
---|
[503] | 4274 |
|
---|
[442] | 4275 | // export rays
|
---|
[485] | 4276 | if (mExportRays)
|
---|
| 4277 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4278 |
|
---|
[485] | 4279 | if (mExportGeometry)
|
---|
[442] | 4280 | exporter->ExportGeometry(objects);
|
---|
| 4281 |
|
---|
| 4282 | delete exporter;
|
---|
| 4283 | }
|
---|
| 4284 | }
|
---|
| 4285 |
|
---|
[503] | 4286 |
|
---|
[485] | 4287 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4288 | const VssRayContainer &rays)
|
---|
[442] | 4289 | {
|
---|
[1020] | 4290 | int leafOut;
|
---|
| 4291 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[503] | 4292 |
|
---|
[442] | 4293 | ViewCell::NewMail();
|
---|
[503] | 4294 |
|
---|
[639] | 4295 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4296 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4297 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4298 |
|
---|
[694] | 4299 | const bool sortViewCells = true;
|
---|
[1021] | 4300 |
|
---|
[485] | 4301 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4302 | if (sortViewCells)
|
---|
[801] | 4303 | {
|
---|
| 4304 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 4305 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4306 | }
|
---|
| 4307 |
|
---|
[503] | 4308 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4309 |
|
---|
[639] | 4310 | int raysOut = 0;
|
---|
[587] | 4311 |
|
---|
[485] | 4312 | //-- some rays for output
|
---|
[478] | 4313 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4314 | {
|
---|
[478] | 4315 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4316 |
|
---|
[582] | 4317 | ViewCell *vc;
|
---|
[574] | 4318 |
|
---|
[694] | 4319 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4320 | vc = mViewCells[i];
|
---|
[574] | 4321 | else
|
---|
[639] | 4322 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4323 |
|
---|
[801] | 4324 | ObjectPvs pvs;
|
---|
| 4325 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4326 |
|
---|
[639] | 4327 | //bspLeaves[j]->Mail();
|
---|
[1020] | 4328 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
[639] | 4329 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4330 |
|
---|
[1142] | 4331 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 4332 |
|
---|
[801] | 4333 | //-- export the sample rays
|
---|
[1020] | 4334 | if (mExportRays)
|
---|
[442] | 4335 | {
|
---|
[694] | 4336 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 4337 | if (1)
|
---|
[442] | 4338 | {
|
---|
[639] | 4339 | VssRayContainer vcRays;
|
---|
| 4340 | VssRayContainer collectRays;
|
---|
| 4341 |
|
---|
| 4342 | raysOut = min((int)rays.size(), 100);
|
---|
| 4343 |
|
---|
| 4344 | // collect intial view cells
|
---|
| 4345 | ViewCellContainer leaves;
|
---|
| 4346 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4347 |
|
---|
| 4348 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4349 |
|
---|
| 4350 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4351 | {
|
---|
[639] | 4352 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4353 |
|
---|
| 4354 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4355 |
|
---|
[639] | 4356 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4357 | {
|
---|
| 4358 | collectRays.push_back(*rit);
|
---|
| 4359 | }
|
---|
[574] | 4360 | }
|
---|
[639] | 4361 |
|
---|
| 4362 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4363 |
|
---|
| 4364 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4365 | {
|
---|
| 4366 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4367 |
|
---|
| 4368 | if (p < raysOut)
|
---|
| 4369 | vcRays.push_back(*rit);
|
---|
| 4370 | }
|
---|
[801] | 4371 |
|
---|
[1052] | 4372 | //Debug << "#rays: " << (int)vcRays.size() << endl;
|
---|
[1047] | 4373 |
|
---|
[639] | 4374 | //-- export rays piercing this view cell
|
---|
| 4375 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4376 | }
|
---|
[651] | 4377 |
|
---|
[694] | 4378 | // associate new rays with output view cell
|
---|
[1047] | 4379 | if (0)
|
---|
[639] | 4380 | {
|
---|
| 4381 | VssRayContainer vcRays;
|
---|
| 4382 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
[801] | 4383 |
|
---|
[639] | 4384 | // check whether we can add the current ray to the output rays
|
---|
| 4385 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4386 | {
|
---|
| 4387 | VssRay *ray = rays[k];
|
---|
| 4388 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4389 | {
|
---|
| 4390 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4391 |
|
---|
| 4392 | if (rayvc == vc)
|
---|
| 4393 | vcRays.push_back(ray);
|
---|
| 4394 | }
|
---|
| 4395 | }
|
---|
| 4396 |
|
---|
| 4397 | //-- export rays piercing this view cell
|
---|
| 4398 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4399 | }
|
---|
| 4400 |
|
---|
[442] | 4401 | }
|
---|
[639] | 4402 |
|
---|
[574] | 4403 |
|
---|
[1020] | 4404 | //-- export view cell geometry
|
---|
[478] | 4405 | exporter->SetWireframe();
|
---|
[442] | 4406 |
|
---|
[478] | 4407 | Material m;//= RandomMaterial();
|
---|
| 4408 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4409 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4410 |
|
---|
[580] | 4411 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 4412 |
|
---|
| 4413 | exporter->SetFilled();
|
---|
[503] | 4414 |
|
---|
[1020] | 4415 |
|
---|
[801] | 4416 | //-- export pvs
|
---|
[574] | 4417 | if (1)
|
---|
| 4418 | {
|
---|
[639] | 4419 | ObjectPvsMap::const_iterator oit,
|
---|
[801] | 4420 | oit_end = pvs.mEntries.end();
|
---|
[483] | 4421 |
|
---|
[801] | 4422 | Intersectable::NewMail();
|
---|
[580] | 4423 |
|
---|
[639] | 4424 | // output PVS of view cell
|
---|
[801] | 4425 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4426 | {
|
---|
| 4427 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4428 |
|
---|
[639] | 4429 | if (!intersect->Mailed())
|
---|
| 4430 | {
|
---|
[643] | 4431 | m = RandomMaterial();
|
---|
| 4432 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4433 |
|
---|
[639] | 4434 | exporter->ExportIntersectable(intersect);
|
---|
| 4435 | intersect->Mail();
|
---|
| 4436 | }
|
---|
[503] | 4437 | }
|
---|
[442] | 4438 | }
|
---|
[801] | 4439 |
|
---|
| 4440 | if (0)
|
---|
| 4441 | { // export scene geometry
|
---|
[643] | 4442 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4443 | exporter->SetForcedMaterial(m);
|
---|
| 4444 |
|
---|
[639] | 4445 | exporter->ExportGeometry(objects);
|
---|
| 4446 | }
|
---|
[503] | 4447 |
|
---|
[478] | 4448 | DEL_PTR(exporter);
|
---|
| 4449 | cout << "finished" << endl;
|
---|
[442] | 4450 | }
|
---|
[475] | 4451 |
|
---|
| 4452 | Debug << endl;
|
---|
[442] | 4453 | }
|
---|
| 4454 |
|
---|
| 4455 |
|
---|
[1021] | 4456 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4457 | {
|
---|
[1021] | 4458 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4459 |
|
---|
[1021] | 4460 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4461 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4462 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4463 | const Vector3 width = Vector3(w);
|
---|
| 4464 |
|
---|
| 4465 | PrVs testPrVs;
|
---|
| 4466 |
|
---|
| 4467 | if (exporter)
|
---|
| 4468 | {
|
---|
| 4469 | ViewCellContainer viewCells;
|
---|
| 4470 |
|
---|
| 4471 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4472 |
|
---|
[1021] | 4473 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4474 |
|
---|
[1021] | 4475 | exporter->SetWireframe();
|
---|
[482] | 4476 |
|
---|
[1021] | 4477 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4478 | exporter->ExportBox(tbox);
|
---|
| 4479 |
|
---|
| 4480 | exporter->SetFilled();
|
---|
[503] | 4481 |
|
---|
[1021] | 4482 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
| 4483 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
[564] | 4484 |
|
---|
[1021] | 4485 | //exporter->ResetForcedMaterial();
|
---|
| 4486 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
| 4487 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
[591] | 4488 |
|
---|
[1021] | 4489 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4490 | exporter->ExportGeometry(objects);
|
---|
[547] | 4491 |
|
---|
[1021] | 4492 | delete exporter;
|
---|
[482] | 4493 | }
|
---|
[1021] | 4494 | }
|
---|
[482] | 4495 |
|
---|
[547] | 4496 |
|
---|
[1021] | 4497 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4498 | ViewCellContainer &viewCells) const
|
---|
| 4499 | {
|
---|
| 4500 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4501 | }
|
---|
| 4502 |
|
---|
| 4503 |
|
---|
[1021] | 4504 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4505 | const Vector3 &termination,
|
---|
| 4506 | ViewCellContainer &viewcells)
|
---|
| 4507 | {
|
---|
| 4508 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4509 | }
|
---|
| 4510 |
|
---|
| 4511 |
|
---|
[979] | 4512 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4513 | {
|
---|
| 4514 | int numSamples;
|
---|
[1161] | 4515 |
|
---|
[1004] | 4516 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4517 | cout << "samples" << numSamples << endl;
|
---|
| 4518 |
|
---|
| 4519 | vector<RenderCostSample> samples;
|
---|
| 4520 |
|
---|
[1145] | 4521 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4522 | return;
|
---|
| 4523 |
|
---|
[1145] | 4524 | //start the view point queries
|
---|
[979] | 4525 | long startTime = GetTime();
|
---|
| 4526 | cout << "starting sampling of render cost ... ";
|
---|
| 4527 |
|
---|
[1145] | 4528 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4529 |
|
---|
| 4530 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4531 |
|
---|
| 4532 |
|
---|
[1161] | 4533 | // for each sample:
|
---|
| 4534 | // find view cells associated with the samples
|
---|
| 4535 | // store the sample pvs with the pvs associated with the view cell
|
---|
| 4536 | // for each view cell:
|
---|
| 4537 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4538 | // export geometry with color coded pvs difference
|
---|
| 4539 |
|
---|
| 4540 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4541 |
|
---|
[979] | 4542 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4543 |
|
---|
[1161] | 4544 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4545 | {
|
---|
| 4546 | RenderCostSample sample = *rit;
|
---|
| 4547 |
|
---|
| 4548 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4549 |
|
---|
[1161] | 4550 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4551 |
|
---|
| 4552 | if (it == sampleMap.end())
|
---|
| 4553 | {
|
---|
| 4554 | sampleMap[vc] = sample.mPvs;
|
---|
| 4555 | }
|
---|
| 4556 | else
|
---|
| 4557 | {
|
---|
| 4558 | (*it).second.Merge(sample.mPvs);
|
---|
| 4559 | }
|
---|
| 4560 | }
|
---|
| 4561 |
|
---|
| 4562 | // visualize the view cells
|
---|
| 4563 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4564 |
|
---|
| 4565 | Material m;//= RandomMaterial();
|
---|
| 4566 |
|
---|
| 4567 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4568 | {
|
---|
| 4569 | ViewCell *vc = (*vit).first;
|
---|
| 4570 |
|
---|
| 4571 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4572 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4573 |
|
---|
[1168] | 4574 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4575 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4576 | //exporter->SetForcedMaterial(m);
|
---|
| 4577 |
|
---|
| 4578 | // ExportViewCellGeometry(exporter, vc, mClipPlane);
|
---|
| 4579 |
|
---|
| 4580 | /* // counting the pvss
|
---|
[979] | 4581 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4582 | {
|
---|
| 4583 | RenderCostSample sample = *rit;
|
---|
[1001] | 4584 |
|
---|
[991] | 4585 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
| 4586 |
|
---|
| 4587 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4588 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
| 4589 |
|
---|
| 4590 | DEL_PTR(hMesh);
|
---|
[1161] | 4591 |
|
---|
| 4592 | */
|
---|
[979] | 4593 | }
|
---|
| 4594 | }
|
---|
| 4595 |
|
---|
| 4596 |
|
---|
[580] | 4597 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4598 | ViewCell *vc,
|
---|
[1047] | 4599 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 4600 | {
|
---|
[660] | 4601 | if (clipPlane)
|
---|
[591] | 4602 | {
|
---|
[1047] | 4603 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4604 |
|
---|
[591] | 4605 | ViewCellContainer leaves;
|
---|
| 4606 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4607 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4608 |
|
---|
| 4609 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4610 | {
|
---|
| 4611 | BspNodeGeometry geom;
|
---|
| 4612 |
|
---|
| 4613 | BspNodeGeometry front;
|
---|
| 4614 | BspNodeGeometry back;
|
---|
| 4615 |
|
---|
| 4616 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4617 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4618 |
|
---|
[1052] | 4619 | const float eps = 0.0001f;
|
---|
[1047] | 4620 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4621 |
|
---|
[710] | 4622 | if (cf == -1)
|
---|
[682] | 4623 | {
|
---|
| 4624 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4625 | }
|
---|
[710] | 4626 | else if (cf == 0)
|
---|
[684] | 4627 | {
|
---|
[682] | 4628 | geom.SplitGeometry(front,
|
---|
| 4629 | back,
|
---|
[1047] | 4630 | plane,
|
---|
[682] | 4631 | mViewSpaceBox,
|
---|
[710] | 4632 | eps);
|
---|
[682] | 4633 |
|
---|
[694] | 4634 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4635 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[801] | 4636 |
|
---|
[683] | 4637 | if (back.Valid())
|
---|
| 4638 | {
|
---|
[682] | 4639 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4640 | }
|
---|
[684] | 4641 | }
|
---|
[591] | 4642 | }
|
---|
| 4643 | }
|
---|
| 4644 | else
|
---|
| 4645 | {
|
---|
[801] | 4646 | // export mesh if available
|
---|
[1001] | 4647 | // TODO: some bug here?
|
---|
| 4648 | if (0 && vc->GetMesh())
|
---|
[801] | 4649 | {
|
---|
| 4650 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4651 | }
|
---|
| 4652 | else
|
---|
[1001] | 4653 | {
|
---|
[801] | 4654 | BspNodeGeometry geom;
|
---|
| 4655 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4656 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4657 | }
|
---|
[591] | 4658 | }
|
---|
[482] | 4659 | }
|
---|
| 4660 |
|
---|
| 4661 |
|
---|
| 4662 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4663 | {
|
---|
[580] | 4664 | ViewCellContainer leaves;
|
---|
| 4665 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4666 |
|
---|
| 4667 | int maxDist = 0;
|
---|
[580] | 4668 |
|
---|
[482] | 4669 | // compute max height difference
|
---|
[580] | 4670 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4671 | {
|
---|
[580] | 4672 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4673 | {
|
---|
| 4674 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4675 |
|
---|
[1001] | 4676 | if (i != j)
|
---|
| 4677 | {
|
---|
| 4678 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
| 4679 |
|
---|
| 4680 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4681 |
|
---|
| 4682 | if (dist > maxDist)
|
---|
| 4683 | maxDist = dist;
|
---|
| 4684 | }
|
---|
[482] | 4685 | }
|
---|
| 4686 | }
|
---|
[580] | 4687 |
|
---|
[492] | 4688 | return maxDist;
|
---|
| 4689 | }
|
---|
[482] | 4690 |
|
---|
[492] | 4691 |
|
---|
[879] | 4692 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4693 | {
|
---|
[1021] | 4694 | if (!ViewCellsConstructed())
|
---|
[508] | 4695 | return NULL;
|
---|
[572] | 4696 |
|
---|
| 4697 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4698 | return NULL;
|
---|
| 4699 |
|
---|
[879] | 4700 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4701 | }
|
---|
[503] | 4702 |
|
---|
| 4703 |
|
---|
| 4704 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4705 | {
|
---|
[726] | 4706 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4707 | BspNodeGeometry geom;
|
---|
[590] | 4708 |
|
---|
| 4709 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4710 |
|
---|
[1001] | 4711 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4712 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4713 |
|
---|
[503] | 4714 | vc->SetMesh(mesh);
|
---|
| 4715 | }
|
---|
[508] | 4716 |
|
---|
| 4717 |
|
---|
[532] | 4718 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4719 | {
|
---|
[535] | 4720 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4721 | }
|
---|
[551] | 4722 |
|
---|
| 4723 |
|
---|
[587] | 4724 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4725 | const bool createMesh)
|
---|
[551] | 4726 | {
|
---|
| 4727 | float area = 0;
|
---|
| 4728 | float volume = 0;
|
---|
| 4729 |
|
---|
[580] | 4730 | ViewCellContainer leaves;
|
---|
[582] | 4731 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4732 |
|
---|
| 4733 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4734 |
|
---|
[693] | 4735 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4736 | {
|
---|
| 4737 | BspNodeGeometry geom;
|
---|
[580] | 4738 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4739 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4740 |
|
---|
[719] | 4741 | const float lVol = geom.GetVolume();
|
---|
| 4742 | const float lArea = geom.GetArea();
|
---|
[693] | 4743 |
|
---|
| 4744 | //(*it)->SetVolume(vol);
|
---|
| 4745 | //(*it)->SetArea(area);
|
---|
| 4746 |
|
---|
| 4747 | area += lArea;
|
---|
| 4748 | volume += lVol;
|
---|
| 4749 |
|
---|
| 4750 | CreateMesh(*it);
|
---|
[551] | 4751 | }
|
---|
| 4752 |
|
---|
| 4753 | viewCell->SetVolume(volume);
|
---|
| 4754 | viewCell->SetArea(area);
|
---|
[563] | 4755 | }
|
---|
[575] | 4756 |
|
---|
| 4757 |
|
---|
[693] | 4758 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4759 | {
|
---|
| 4760 | ViewCellContainer leaves;
|
---|
| 4761 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4762 |
|
---|
| 4763 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4764 |
|
---|
| 4765 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4766 | float subdivVol = 0;
|
---|
| 4767 | float newVol = 0;
|
---|
| 4768 |
|
---|
| 4769 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4770 | {
|
---|
| 4771 | BspNodeGeometry geom;
|
---|
| 4772 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4773 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4774 |
|
---|
| 4775 | const float lVol = geom.GetVolume();
|
---|
| 4776 |
|
---|
| 4777 | newVol += lVol;
|
---|
| 4778 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4779 |
|
---|
[704] | 4780 | float thres = 0.9f;
|
---|
[697] | 4781 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4782 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4783 | }
|
---|
| 4784 |
|
---|
| 4785 | Debug << "exact volume: " << vol << endl;
|
---|
| 4786 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4787 | Debug << "new volume: " << newVol << endl;
|
---|
| 4788 | }
|
---|
| 4789 |
|
---|
| 4790 |
|
---|
[577] | 4791 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4792 | {
|
---|
| 4793 | // TODO: do I still need this here?
|
---|
[590] | 4794 | if (0)
|
---|
[693] | 4795 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4796 | }
|
---|
[575] | 4797 |
|
---|
[1021] | 4798 |
|
---|
| 4799 |
|
---|
| 4800 | /**************************************************************************/
|
---|
[1047] | 4801 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4802 | /**************************************************************************/
|
---|
| 4803 |
|
---|
| 4804 |
|
---|
[1264] | 4805 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, VspTree *vspTree, OspTree *ospTree):
|
---|
| 4806 | ViewCellsManager(vcTree), mVspTree(vspTree), mOspTree(ospTree)
|
---|
[859] | 4807 | {
|
---|
[1027] | 4808 | mHierarchyManager = new HierarchyManager(*vspTree, *ospTree);
|
---|
| 4809 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
[1106] | 4810 |
|
---|
[1021] | 4811 | mVspTree->SetViewCellsManager(this);
|
---|
[1106] | 4812 | mOspTree->SetViewCellsManager(this);
|
---|
| 4813 |
|
---|
[1184] | 4814 | mVspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 4815 | }
|
---|
[859] | 4816 |
|
---|
| 4817 |
|
---|
[1021] | 4818 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4819 | {
|
---|
[1027] | 4820 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 4821 | }
|
---|
| 4822 |
|
---|
| 4823 |
|
---|
| 4824 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4825 | {
|
---|
| 4826 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4827 | }
|
---|
| 4828 |
|
---|
| 4829 |
|
---|
| 4830 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4831 | {
|
---|
| 4832 | // view cells tree constructed
|
---|
| 4833 | if (!ViewCellsTreeConstructed())
|
---|
| 4834 | {
|
---|
| 4835 | mVspTree->CollectViewCells(mViewCells, false);
|
---|
| 4836 | }
|
---|
| 4837 | else
|
---|
| 4838 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4839 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4840 | }
|
---|
| 4841 | }
|
---|
| 4842 |
|
---|
| 4843 |
|
---|
| 4844 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4845 | {
|
---|
| 4846 | return mVspTree->GetRoot() != NULL;
|
---|
| 4847 | }
|
---|
| 4848 |
|
---|
| 4849 |
|
---|
| 4850 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4851 | {
|
---|
| 4852 | return new VspViewCell(mesh);
|
---|
| 4853 | }
|
---|
| 4854 |
|
---|
| 4855 |
|
---|
| 4856 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4857 | const VssRayContainer &rays)
|
---|
| 4858 | {
|
---|
| 4859 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4860 |
|
---|
[1074] | 4861 | // skip rest if view cells were already constructed
|
---|
[1021] | 4862 | if (ViewCellsConstructed())
|
---|
| 4863 | return 0;
|
---|
| 4864 |
|
---|
| 4865 | int sampleContributions = 0;
|
---|
| 4866 |
|
---|
| 4867 | VssRayContainer sampleRays;
|
---|
| 4868 |
|
---|
| 4869 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4870 |
|
---|
| 4871 | VssRayContainer constructionRays;
|
---|
| 4872 | VssRayContainer savedRays;
|
---|
| 4873 |
|
---|
| 4874 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4875 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4876 |
|
---|
| 4877 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4878 |
|
---|
| 4879 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
| 4880 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4881 |
|
---|
| 4882 | long startTime;
|
---|
[1179] | 4883 |
|
---|
[1176] | 4884 | //mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
| 4885 | mHierarchyManager->Construct2(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 4886 |
|
---|
[1178] | 4887 | VssRayContainer::const_iterator vit, vit_end = constructionRays.end();
|
---|
[1180] | 4888 |
|
---|
[1178] | 4889 | for (vit = constructionRays.begin(); vit != vit_end; ++ vit)
|
---|
| 4890 | {
|
---|
| 4891 | storedRays.push_back(new VssRay(*(*vit)));
|
---|
| 4892 | }
|
---|
[1176] | 4893 |
|
---|
[1143] | 4894 | // print subdivision statistics
|
---|
[1021] | 4895 | Debug << mVspTree->GetStatistics() << endl;
|
---|
[1145] | 4896 | Debug << mOspTree->GetStatistics() << endl;
|
---|
[1021] | 4897 |
|
---|
[1201] | 4898 | OUT_STREAM stream("osptree.xml.zip");
|
---|
| 4899 | mOspTree->Export(stream);
|
---|
| 4900 |
|
---|
[1143] | 4901 | // print view cell statistics
|
---|
[1021] | 4902 | ResetViewCells();
|
---|
| 4903 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4904 |
|
---|
| 4905 |
|
---|
| 4906 | startTime = GetTime();
|
---|
| 4907 |
|
---|
| 4908 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4909 |
|
---|
| 4910 | // recast rest of rays
|
---|
| 4911 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4912 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4913 |
|
---|
| 4914 | cout << "finished" << endl;
|
---|
| 4915 |
|
---|
| 4916 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4917 | << " secs" << endl;
|
---|
| 4918 |
|
---|
| 4919 | cout << "construction finished" << endl;
|
---|
| 4920 |
|
---|
| 4921 | // real meshes are contructed at this stage
|
---|
| 4922 | if (0)
|
---|
| 4923 | {
|
---|
| 4924 | cout << "finalizing view cells ... ";
|
---|
| 4925 | FinalizeViewCells(true);
|
---|
| 4926 | cout << "finished" << endl;
|
---|
| 4927 | }
|
---|
| 4928 |
|
---|
| 4929 | return sampleContributions;
|
---|
| 4930 | }
|
---|
| 4931 |
|
---|
| 4932 |
|
---|
| 4933 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4934 | const VssRayContainer &rays)
|
---|
| 4935 | {
|
---|
| 4936 | if (!ViewCellsConstructed())
|
---|
| 4937 | {
|
---|
| 4938 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 4939 | return 0;
|
---|
| 4940 | }
|
---|
| 4941 |
|
---|
| 4942 |
|
---|
[1027] | 4943 | // take this step only if
|
---|
| 4944 | // view cells already constructed before post processing step
|
---|
| 4945 | // (e.g., because they were loaded)
|
---|
[1021] | 4946 | if (mViewCellsFinished)
|
---|
| 4947 | {
|
---|
| 4948 | FinalizeViewCells(true);
|
---|
| 4949 | EvaluateViewCellsStats();
|
---|
| 4950 |
|
---|
| 4951 | return 0;
|
---|
| 4952 | }
|
---|
| 4953 |
|
---|
| 4954 | // check if new view cells turned invalid
|
---|
| 4955 | int minPvs, maxPvs;
|
---|
| 4956 |
|
---|
| 4957 | if (0)
|
---|
| 4958 | {
|
---|
| 4959 | minPvs = mMinPvsSize;
|
---|
| 4960 | maxPvs = mMaxPvsSize;
|
---|
| 4961 | }
|
---|
| 4962 | else
|
---|
| 4963 | {
|
---|
| 4964 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 4965 | maxPvs = mMaxPvsSize;
|
---|
| 4966 | }
|
---|
| 4967 |
|
---|
| 4968 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4969 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4970 |
|
---|
| 4971 | SetValidity(minPvs, maxPvs);
|
---|
| 4972 |
|
---|
| 4973 |
|
---|
| 4974 | // area has to be recomputed
|
---|
| 4975 | mTotalAreaValid = false;
|
---|
| 4976 | VssRayContainer postProcessRays;
|
---|
| 4977 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4978 |
|
---|
| 4979 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 4980 |
|
---|
| 4981 |
|
---|
| 4982 | // should maybe be done here to allow merge working with area or volume
|
---|
| 4983 | // and to correct the rendering statistics
|
---|
| 4984 | if (0) FinalizeViewCells(false);
|
---|
| 4985 |
|
---|
| 4986 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4987 | ViewCell *root = ConstructSpatialMergeTree(mVspTree->GetRoot());
|
---|
| 4988 | mViewCellsTree->SetRoot(root);
|
---|
| 4989 |
|
---|
| 4990 | // compute pvs
|
---|
| 4991 | ObjectPvs pvs;
|
---|
| 4992 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 4993 |
|
---|
| 4994 |
|
---|
| 4995 | //-- render simulation after merge + refine
|
---|
| 4996 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 4997 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4998 | SimulationStatistics ss;
|
---|
| 4999 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[859] | 5000 |
|
---|
| 5001 |
|
---|
[1021] | 5002 | cout << " finished" << endl;
|
---|
| 5003 | cout << ss << endl;
|
---|
| 5004 | Debug << ss << endl;
|
---|
[859] | 5005 |
|
---|
| 5006 |
|
---|
[1021] | 5007 | //-- compression
|
---|
[1262] | 5008 |
|
---|
[1021] | 5009 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 5010 | {
|
---|
[1161] | 5011 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 5012 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 5013 |
|
---|
[1021] | 5014 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 5015 |
|
---|
[1161] | 5016 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 5017 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5018 | }
|
---|
[1021] | 5019 |
|
---|
| 5020 | // compute final meshes and volume / area
|
---|
| 5021 | if (1) FinalizeViewCells(true);
|
---|
| 5022 |
|
---|
| 5023 | // write view cells to disc
|
---|
| 5024 | if (mExportViewCells)
|
---|
| 5025 | {
|
---|
| 5026 | char filename[100];
|
---|
| 5027 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 5028 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 5029 | }
|
---|
| 5030 |
|
---|
| 5031 |
|
---|
| 5032 | return 0;
|
---|
[859] | 5033 | }
|
---|
| 5034 |
|
---|
[1021] | 5035 |
|
---|
| 5036 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5037 | {
|
---|
[1021] | 5038 | return VSP_OSP;
|
---|
| 5039 | }
|
---|
[859] | 5040 |
|
---|
[1021] | 5041 |
|
---|
| 5042 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5043 | {
|
---|
| 5044 | // terminate recursion
|
---|
| 5045 | if (root->IsLeaf())
|
---|
| 5046 | {
|
---|
| 5047 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5048 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5049 | return leaf->GetViewCell();
|
---|
| 5050 | }
|
---|
| 5051 |
|
---|
| 5052 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5053 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5054 |
|
---|
| 5055 | // evaluate merge cost for priority traversal
|
---|
| 5056 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 5057 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5058 |
|
---|
| 5059 | float volume = 0;
|
---|
| 5060 |
|
---|
| 5061 | VspNode *front = interior->GetFront();
|
---|
| 5062 | VspNode *back = interior->GetBack();
|
---|
| 5063 |
|
---|
| 5064 |
|
---|
| 5065 | ObjectPvs frontPvs, backPvs;
|
---|
| 5066 |
|
---|
| 5067 | //-- recursivly compute child hierarchies
|
---|
| 5068 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5069 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5070 |
|
---|
| 5071 |
|
---|
| 5072 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5073 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5074 |
|
---|
| 5075 | volume += backVc->GetVolume();
|
---|
| 5076 | volume += frontVc->GetVolume();
|
---|
| 5077 |
|
---|
| 5078 | viewCellInterior->SetVolume(volume);
|
---|
| 5079 |
|
---|
| 5080 | return viewCellInterior;
|
---|
| 5081 | }
|
---|
| 5082 |
|
---|
| 5083 |
|
---|
| 5084 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5085 | {
|
---|
| 5086 | if (!ViewCellsConstructed())
|
---|
| 5087 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5088 |
|
---|
| 5089 | // TODO: set reasonable limit
|
---|
| 5090 | const int limit = 20;
|
---|
| 5091 |
|
---|
| 5092 | for (int i = 0; i < limit; ++ i)
|
---|
| 5093 | {
|
---|
| 5094 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5095 |
|
---|
[1021] | 5096 | if (mVspTree->ViewPointValid(viewPoint))
|
---|
| 5097 | {
|
---|
| 5098 | return true;
|
---|
| 5099 | }
|
---|
[904] | 5100 | }
|
---|
[859] | 5101 |
|
---|
[1021] | 5102 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5103 | return false;
|
---|
[884] | 5104 | }
|
---|
| 5105 |
|
---|
| 5106 |
|
---|
[1027] | 5107 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5108 | ViewCell *vc,
|
---|
[1047] | 5109 | const AxisAlignedPlane *clipPlane) const
|
---|
[1027] | 5110 | {
|
---|
| 5111 | ViewCellContainer leaves;
|
---|
| 5112 |
|
---|
| 5113 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5114 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5115 |
|
---|
[1047] | 5116 | Plane3 plane;
|
---|
| 5117 |
|
---|
| 5118 | if (clipPlane)
|
---|
| 5119 | plane = clipPlane->GetPlane();
|
---|
| 5120 |
|
---|
[1027] | 5121 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5122 | {
|
---|
| 5123 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
| 5124 | VspLeaf *l = vspVc->mLeaf;
|
---|
| 5125 |
|
---|
[1144] | 5126 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(vspVc->mLeaf);
|
---|
[1047] | 5127 |
|
---|
| 5128 | if (clipPlane)
|
---|
| 5129 | {
|
---|
| 5130 | if (box.Side(plane) == -1)
|
---|
[1144] | 5131 | {
|
---|
[1047] | 5132 | exporter->ExportBox(box);
|
---|
[1144] | 5133 | }
|
---|
[1047] | 5134 | else if (box.Side(plane) == 0)
|
---|
| 5135 | {
|
---|
| 5136 | AxisAlignedBox3 fbox, bbox;
|
---|
| 5137 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
| 5138 |
|
---|
| 5139 | exporter->ExportBox(bbox);
|
---|
| 5140 | }
|
---|
| 5141 | }
|
---|
| 5142 | else
|
---|
| 5143 | {
|
---|
[1027] | 5144 | exporter->ExportBox(box);
|
---|
[1047] | 5145 | }
|
---|
[1027] | 5146 | }
|
---|
| 5147 | }
|
---|
| 5148 |
|
---|
| 5149 |
|
---|
[1021] | 5150 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5151 | {
|
---|
| 5152 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5153 | // validy update in preprocessor for all managers)
|
---|
| 5154 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5155 |
|
---|
[1021] | 5156 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5157 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5158 | }
|
---|
| 5159 |
|
---|
| 5160 |
|
---|
| 5161 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5162 | const VssRayContainer &sampleRays)
|
---|
[859] | 5163 | {
|
---|
[997] | 5164 | if (!ViewCellsConstructed())
|
---|
| 5165 | return;
|
---|
[1027] | 5166 |
|
---|
[1021] | 5167 | VssRayContainer visRays;
|
---|
| 5168 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5169 |
|
---|
[1021] | 5170 | if (1)
|
---|
[1047] | 5171 | {
|
---|
[1106] | 5172 | //-- export final view cells
|
---|
| 5173 |
|
---|
[1047] | 5174 | // hack pvs
|
---|
[1021] | 5175 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5176 | mColorCode = 0;
|
---|
[1021] | 5177 |
|
---|
| 5178 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5179 |
|
---|
| 5180 | if (exporter)
|
---|
| 5181 | {
|
---|
| 5182 | cout << "exporting view cells after post process ... ";
|
---|
[859] | 5183 |
|
---|
[1021] | 5184 | if (0)
|
---|
| 5185 | {
|
---|
| 5186 | // export view space box
|
---|
| 5187 | exporter->SetWireframe();
|
---|
| 5188 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 5189 | exporter->SetFilled();
|
---|
| 5190 | }
|
---|
[859] | 5191 |
|
---|
[1021] | 5192 | if (mExportGeometry)
|
---|
| 5193 | {
|
---|
| 5194 | exporter->ExportGeometry(objects);
|
---|
| 5195 | }
|
---|
[859] | 5196 |
|
---|
[1021] | 5197 | // export rays
|
---|
[1072] | 5198 | if (0 && mExportRays)
|
---|
[1021] | 5199 | {
|
---|
| 5200 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5201 | }
|
---|
| 5202 |
|
---|
| 5203 | //exporter->SetFilled();
|
---|
| 5204 |
|
---|
| 5205 | // HACK: export without clip plane
|
---|
[1052] | 5206 | const bool b = mUseClipPlaneForViz;
|
---|
[1106] | 5207 | if (0) mUseClipPlaneForViz = false;
|
---|
[1021] | 5208 |
|
---|
| 5209 | ExportViewCellsForViz(exporter);
|
---|
| 5210 |
|
---|
[1052] | 5211 | mUseClipPlaneForViz = b;
|
---|
[1021] | 5212 | delete exporter;
|
---|
| 5213 |
|
---|
| 5214 | cout << "finished" << endl;
|
---|
| 5215 | }
|
---|
| 5216 |
|
---|
| 5217 | mColorCode = savedColorCode;
|
---|
| 5218 | }
|
---|
| 5219 |
|
---|
[1142] | 5220 | if (1 && mOspTree->GetRoot())
|
---|
[1106] | 5221 | {
|
---|
| 5222 | //-- export final object partition
|
---|
| 5223 | Exporter *exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5224 |
|
---|
| 5225 | if (exporter)
|
---|
| 5226 | {
|
---|
| 5227 | cout << "exporting object space partition ... ";
|
---|
| 5228 |
|
---|
[1107] | 5229 | if (0 && mExportGeometry)
|
---|
[1106] | 5230 | {
|
---|
| 5231 | exporter->ExportGeometry(objects);
|
---|
| 5232 | }
|
---|
| 5233 |
|
---|
| 5234 | // export rays
|
---|
| 5235 | if (0 && mExportRays)
|
---|
| 5236 | {
|
---|
| 5237 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5238 | }
|
---|
| 5239 |
|
---|
| 5240 | exporter->SetWireframe();
|
---|
[1121] | 5241 |
|
---|
| 5242 | const int savedColorCode = mColorCode;
|
---|
[1145] | 5243 | mColorCode = 0;
|
---|
[1121] | 5244 | const int maxPvs = 200;//mOspTree.GetStatistics().maxPvs;
|
---|
[1106] | 5245 |
|
---|
[1121] | 5246 | exporter->ExportOspTree(*mOspTree, mColorCode == 0 ? 0 : maxPvs);
|
---|
| 5247 |
|
---|
[1145] | 5248 | mColorCode = savedColorCode;
|
---|
| 5249 |
|
---|
[1106] | 5250 | delete exporter;
|
---|
| 5251 |
|
---|
| 5252 | cout << "finished" << endl;
|
---|
| 5253 | }
|
---|
| 5254 | }
|
---|
| 5255 |
|
---|
[1021] | 5256 | //-- export single view cells
|
---|
[1074] | 5257 | ExportPvs(objects, visRays);
|
---|
[859] | 5258 | }
|
---|
| 5259 |
|
---|
[1021] | 5260 |
|
---|
[1074] | 5261 | void VspOspViewCellsManager::ExportPvs(const ObjectContainer &objects,
|
---|
| 5262 | const VssRayContainer &rays)
|
---|
[697] | 5263 | {
|
---|
[1021] | 5264 | int leafOut;
|
---|
| 5265 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[580] | 5266 |
|
---|
[1021] | 5267 | ViewCell::NewMail();
|
---|
| 5268 |
|
---|
| 5269 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5270 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5271 | Debug << "\nOutput view cells: " << endl;
|
---|
| 5272 |
|
---|
| 5273 | const bool sortViewCells = true;
|
---|
| 5274 |
|
---|
| 5275 | // sort view cells to visualize the largest view cells
|
---|
| 5276 | if (sortViewCells)
|
---|
[697] | 5277 | {
|
---|
[1021] | 5278 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 5279 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5280 | }
|
---|
| 5281 |
|
---|
| 5282 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 5283 |
|
---|
| 5284 | int raysOut = 0;
|
---|
| 5285 |
|
---|
[1178] | 5286 |
|
---|
[1021] | 5287 | //-- some rays for output
|
---|
[1178] | 5288 |
|
---|
[1021] | 5289 | for (int i = 0; i < limit; ++ i)
|
---|
| 5290 | {
|
---|
| 5291 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 5292 |
|
---|
| 5293 | ViewCell *vc;
|
---|
[704] | 5294 |
|
---|
[1021] | 5295 | if (sortViewCells) // largest view cell pvs first
|
---|
| 5296 | vc = mViewCells[i];
|
---|
[1074] | 5297 | else // random view cell
|
---|
[1021] | 5298 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[704] | 5299 |
|
---|
[1021] | 5300 | ObjectPvs pvs;
|
---|
| 5301 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5302 |
|
---|
[1021] | 5303 | //bspLeaves[j]->Mail();
|
---|
| 5304 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
| 5305 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5306 |
|
---|
[1142] | 5307 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[1021] | 5308 |
|
---|
| 5309 | //-- export the sample rays
|
---|
[1074] | 5310 | if (1 || mExportRays)
|
---|
[1021] | 5311 | {
|
---|
| 5312 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 5313 | if (1)
|
---|
[1021] | 5314 | {
|
---|
| 5315 | VssRayContainer vcRays;
|
---|
| 5316 | VssRayContainer collectRays;
|
---|
| 5317 |
|
---|
| 5318 | raysOut = min((int)rays.size(), 100);
|
---|
| 5319 |
|
---|
| 5320 | // collect intial view cells
|
---|
| 5321 | ViewCellContainer leaves;
|
---|
| 5322 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5323 |
|
---|
| 5324 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5325 |
|
---|
| 5326 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5327 | {
|
---|
[1047] | 5328 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
|
---|
[1021] | 5329 |
|
---|
| 5330 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5331 |
|
---|
| 5332 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5333 | {
|
---|
| 5334 | collectRays.push_back(*rit);
|
---|
| 5335 | }
|
---|
| 5336 | }
|
---|
| 5337 |
|
---|
| 5338 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 5339 |
|
---|
| 5340 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5341 | {
|
---|
| 5342 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5343 |
|
---|
| 5344 | if (p < raysOut)
|
---|
| 5345 | vcRays.push_back(*rit);
|
---|
| 5346 | }
|
---|
| 5347 |
|
---|
| 5348 | //-- export rays piercing this view cell
|
---|
| 5349 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
| 5350 | }
|
---|
| 5351 |
|
---|
| 5352 | // associate new rays with output view cell
|
---|
[1047] | 5353 | if (0)
|
---|
[1021] | 5354 | {
|
---|
| 5355 | VssRayContainer vcRays;
|
---|
| 5356 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 5357 |
|
---|
| 5358 | // check whether we can add the current ray to the output rays
|
---|
| 5359 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 5360 | {
|
---|
| 5361 | VssRay *ray = rays[k];
|
---|
| 5362 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 5363 | {
|
---|
| 5364 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 5365 |
|
---|
| 5366 | if (rayvc == vc)
|
---|
| 5367 | vcRays.push_back(ray);
|
---|
| 5368 | }
|
---|
| 5369 | }
|
---|
| 5370 |
|
---|
| 5371 | //-- export rays piercing this view cell
|
---|
| 5372 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 5373 | }
|
---|
| 5374 | }
|
---|
| 5375 |
|
---|
| 5376 | //-- export view cell geometry
|
---|
[1121] | 5377 |
|
---|
[697] | 5378 | exporter->SetWireframe();
|
---|
| 5379 |
|
---|
[1021] | 5380 | Material m;//= RandomMaterial();
|
---|
| 5381 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5382 | exporter->SetForcedMaterial(m);
|
---|
| 5383 |
|
---|
| 5384 | ExportViewCellGeometry(exporter, vc);
|
---|
| 5385 |
|
---|
[697] | 5386 | exporter->SetFilled();
|
---|
| 5387 |
|
---|
[1021] | 5388 | if (1)
|
---|
[1138] | 5389 | {
|
---|
| 5390 | //-- export pvs
|
---|
[1189] | 5391 |
|
---|
[1021] | 5392 | Intersectable::NewMail();
|
---|
[1189] | 5393 | KdLeaf::NewMail();
|
---|
[697] | 5394 |
|
---|
[1074] | 5395 | vector<KdLeaf *> kdLeaves;
|
---|
| 5396 |
|
---|
[1189] | 5397 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1074] | 5398 |
|
---|
[1021] | 5399 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[1074] | 5400 | {
|
---|
| 5401 | Intersectable *obj = (*oit).first;
|
---|
[1021] | 5402 |
|
---|
[1144] | 5403 | if (obj->Type() == Intersectable::KD_INTERSECTABLE)
|
---|
| 5404 | {
|
---|
| 5405 | m.mDiffuseColor = RgbColor(1, 1, 1);
|
---|
| 5406 | exporter->SetForcedMaterial(m);
|
---|
| 5407 |
|
---|
| 5408 | // export bounding box of node
|
---|
| 5409 | KdIntersectable *kdObj = dynamic_cast<KdIntersectable *>(obj);
|
---|
[1233] | 5410 | AxisAlignedBox3 box = mOspTree->GetBoundingBox(kdObj->GetItem());
|
---|
[1144] | 5411 |
|
---|
| 5412 | exporter->SetWireframe();
|
---|
| 5413 | exporter->ExportBox(box);
|
---|
| 5414 | exporter->SetFilled();
|
---|
| 5415 | }
|
---|
| 5416 |
|
---|
| 5417 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 5418 | exporter->SetForcedMaterial(m);
|
---|
| 5419 |
|
---|
| 5420 | // export pvs entry
|
---|
[1139] | 5421 | if (!obj->Mailed())
|
---|
[1021] | 5422 | {
|
---|
[1074] | 5423 | exporter->ExportIntersectable(obj);
|
---|
| 5424 | obj->Mail();
|
---|
| 5425 | }
|
---|
[1139] | 5426 | }
|
---|
[1021] | 5427 | }
|
---|
[1074] | 5428 |
|
---|
[1021] | 5429 | DEL_PTR(exporter);
|
---|
| 5430 | cout << "finished" << endl;
|
---|
[697] | 5431 | }
|
---|
[1021] | 5432 |
|
---|
| 5433 | Debug << endl;
|
---|
[697] | 5434 | }
|
---|
| 5435 |
|
---|
| 5436 |
|
---|
[1021] | 5437 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5438 | ViewCellContainer &viewCells) const
|
---|
| 5439 | {
|
---|
| 5440 | return mVspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 5441 | }
|
---|
[580] | 5442 |
|
---|
[1021] | 5443 |
|
---|
| 5444 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5445 | const Vector3 &termination,
|
---|
| 5446 | ViewCellContainer &viewcells)
|
---|
| 5447 | {
|
---|
| 5448 | return mVspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 5449 | }
|
---|
| 5450 |
|
---|
| 5451 |
|
---|
| 5452 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5453 | const bool exportPvs,
|
---|
| 5454 | const ObjectContainer &objects)
|
---|
| 5455 | {
|
---|
| 5456 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5457 | return false;
|
---|
| 5458 |
|
---|
| 5459 | cout << "exporting view cells to xml ... ";
|
---|
| 5460 |
|
---|
[1201] | 5461 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5462 |
|
---|
| 5463 | // for output we need unique ids for each view cell
|
---|
| 5464 | CreateUniqueViewCellIds();
|
---|
| 5465 |
|
---|
| 5466 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5467 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5468 |
|
---|
| 5469 |
|
---|
| 5470 | //-- export bounding boxes
|
---|
[1201] | 5471 |
|
---|
[1021] | 5472 | stream << "<BoundingBoxes>" << endl;
|
---|
| 5473 |
|
---|
| 5474 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 5475 |
|
---|
| 5476 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
[580] | 5477 | {
|
---|
[1021] | 5478 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 5479 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 5480 |
|
---|
| 5481 | //-- the bounding boxes
|
---|
| 5482 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 5483 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 5484 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[580] | 5485 | }
|
---|
[1021] | 5486 |
|
---|
| 5487 | stream << "</BoundingBoxes>" << endl;
|
---|
| 5488 |
|
---|
| 5489 |
|
---|
| 5490 | //-- export the view cells and the pvs
|
---|
| 5491 |
|
---|
| 5492 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5493 |
|
---|
| 5494 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5495 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5496 | stream << "</ViewCells>" << endl;
|
---|
| 5497 |
|
---|
| 5498 |
|
---|
[1201] | 5499 | //-- export the view space hierarchy
|
---|
[1021] | 5500 |
|
---|
[1262] | 5501 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5502 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 5503 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 5504 |
|
---|
[1021] | 5505 | mVspTree->Export(stream);
|
---|
[1262] | 5506 | stream << endl << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5507 |
|
---|
[1201] | 5508 |
|
---|
| 5509 | //-- export the object space partition
|
---|
| 5510 |
|
---|
| 5511 | // the type of the view cells hierarchy
|
---|
[1262] | 5512 | if (mHierarchyManager->GetObjectSpaceSubdivisonType() ==
|
---|
| 5513 | HierarchyManager::KD_BASED_OBJ_SUBDIV)
|
---|
| 5514 | {
|
---|
| 5515 | stream << "<ObjectSpaceHierarchy type=\"osp\">" << endl;
|
---|
| 5516 | mOspTree->Export(stream);
|
---|
| 5517 | stream << endl << "</ObjectSpaceHierarchy>" << endl;
|
---|
| 5518 | }
|
---|
| 5519 | else if (mHierarchyManager->GetObjectSpaceSubdivisonType() ==
|
---|
| 5520 | HierarchyManager::BV_BASED_OBJ_SUBDIV)
|
---|
| 5521 | {
|
---|
| 5522 | stream << "<ObjectSpaceHierarchy type=\"bvh\">" << endl;
|
---|
| 5523 | mBvHierarchy->Export(stream);
|
---|
| 5524 | stream << endl << "</ObjectSpaceHierarchy>" << endl;
|
---|
| 5525 | }
|
---|
[1021] | 5526 |
|
---|
[1201] | 5527 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5528 | stream.close();
|
---|
[1201] | 5529 |
|
---|
[1021] | 5530 | cout << "finished" << endl;
|
---|
| 5531 |
|
---|
| 5532 | return true;
|
---|
| 5533 | }
|
---|
| 5534 |
|
---|
| 5535 |
|
---|
| 5536 |
|
---|
[1027] | 5537 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5538 | const bool active) const
|
---|
[1021] | 5539 | {
|
---|
| 5540 | if (!ViewCellsConstructed())
|
---|
| 5541 | return NULL;
|
---|
| 5542 |
|
---|
| 5543 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5544 | return NULL;
|
---|
| 5545 |
|
---|
| 5546 | return mVspTree->GetViewCell(point, active);
|
---|
| 5547 | }
|
---|
| 5548 |
|
---|
| 5549 |
|
---|
| 5550 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5551 | {
|
---|
| 5552 | // matt: TODO
|
---|
| 5553 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5554 |
|
---|
| 5555 | ViewCellContainer leaves;
|
---|
| 5556 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5557 |
|
---|
| 5558 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5559 |
|
---|
| 5560 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5561 | {
|
---|
| 5562 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
[1144] | 5563 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(leaf);
|
---|
[1027] | 5564 |
|
---|
| 5565 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5566 | }
|
---|
| 5567 |
|
---|
[1021] | 5568 | vc->SetMesh(mesh);
|
---|
| 5569 | }
|
---|
| 5570 |
|
---|
| 5571 |
|
---|
| 5572 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5573 | {
|
---|
| 5574 | // matt: TODO
|
---|
| 5575 | return 0;
|
---|
| 5576 | }
|
---|
| 5577 |
|
---|
| 5578 |
|
---|
| 5579 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5580 | const bool createMesh)
|
---|
| 5581 | {
|
---|
| 5582 | float area = 0;
|
---|
| 5583 | float volume = 0;
|
---|
| 5584 |
|
---|
| 5585 | ViewCellContainer leaves;
|
---|
| 5586 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5587 |
|
---|
| 5588 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5589 |
|
---|
| 5590 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5591 | {
|
---|
[1027] | 5592 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5593 |
|
---|
[1144] | 5594 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(leaf);
|
---|
[1021] | 5595 |
|
---|
[1027] | 5596 | const float lVol = box.GetVolume();
|
---|
| 5597 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5598 |
|
---|
| 5599 | //(*it)->SetVolume(vol);
|
---|
| 5600 | //(*it)->SetArea(area);
|
---|
| 5601 |
|
---|
| 5602 | area += lArea;
|
---|
| 5603 | volume += lVol;
|
---|
| 5604 |
|
---|
| 5605 | CreateMesh(*it);
|
---|
[580] | 5606 | }
|
---|
| 5607 |
|
---|
[1021] | 5608 | viewCell->SetVolume(volume);
|
---|
| 5609 | viewCell->SetArea(area);
|
---|
[580] | 5610 | }
|
---|
[1021] | 5611 |
|
---|
[580] | 5612 |
|
---|
[1159] | 5613 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5614 | const bool addRays,
|
---|
| 5615 | const bool storeViewCells)
|
---|
| 5616 | {
|
---|
| 5617 | ViewCellContainer viewcells;
|
---|
| 5618 |
|
---|
| 5619 | ray.mPvsContribution = 0;
|
---|
| 5620 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5621 |
|
---|
| 5622 | static Ray hray;
|
---|
| 5623 | hray.Init(ray);
|
---|
| 5624 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5625 | //Ray hray(ray);
|
---|
| 5626 |
|
---|
| 5627 | float tmin = 0, tmax = 1.0;
|
---|
| 5628 |
|
---|
| 5629 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5630 | return 0;
|
---|
| 5631 |
|
---|
| 5632 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5633 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5634 |
|
---|
| 5635 | // traverse the view space subdivision
|
---|
| 5636 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5637 |
|
---|
| 5638 | if (storeViewCells)
|
---|
| 5639 | { // copy viewcells memory efficiently
|
---|
| 5640 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5641 | ray.mViewCells = viewcells;
|
---|
| 5642 | }
|
---|
| 5643 |
|
---|
| 5644 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5645 |
|
---|
| 5646 | for (; it != viewcells.end(); ++ it)
|
---|
| 5647 | {
|
---|
| 5648 | ViewCell *viewcell = *it;
|
---|
| 5649 |
|
---|
| 5650 | if (viewcell->GetValid())
|
---|
| 5651 | {
|
---|
| 5652 | // if ray not outside of view space
|
---|
| 5653 | float contribution;
|
---|
| 5654 |
|
---|
| 5655 | if (ray.mTerminationObject)
|
---|
| 5656 | {
|
---|
[1168] | 5657 | // todo: maybe not correct for kd node pvs
|
---|
[1159] | 5658 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 5659 | ray.mPdf, contribution))
|
---|
| 5660 | {
|
---|
| 5661 | ++ ray.mPvsContribution;
|
---|
| 5662 | }
|
---|
| 5663 |
|
---|
| 5664 | ray.mRelativePvsContribution += contribution;
|
---|
| 5665 | }
|
---|
| 5666 |
|
---|
| 5667 | // for directional sampling it is important to count only contributions
|
---|
| 5668 | // made in one direction!!!
|
---|
| 5669 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1166] | 5670 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1159] | 5671 | if (ray.mOriginObject &&
|
---|
| 5672 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 5673 | ray.mPdf,
|
---|
| 5674 | contribution))
|
---|
| 5675 | {
|
---|
| 5676 | ++ ray.mPvsContribution;
|
---|
| 5677 | ray.mRelativePvsContribution += contribution;
|
---|
| 5678 | }
|
---|
| 5679 | #endif
|
---|
| 5680 | }
|
---|
| 5681 | }
|
---|
| 5682 |
|
---|
[1259] | 5683 | if (!addRays)
|
---|
| 5684 | return ray.mRelativePvsContribution;
|
---|
| 5685 |
|
---|
| 5686 | // sampled objects are stored in the pvs
|
---|
| 5687 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 5688 | {
|
---|
[1259] | 5689 | ViewCell *viewCell = *it;
|
---|
[1159] | 5690 |
|
---|
[1259] | 5691 | if (!viewCell->GetValid())
|
---|
| 5692 | break;
|
---|
[1159] | 5693 |
|
---|
[1259] | 5694 | AddSampleToPvs(
|
---|
| 5695 | ray.mTerminationObject,
|
---|
| 5696 | ray.mTermination,
|
---|
| 5697 | viewCell,
|
---|
| 5698 | ray.mPdf,
|
---|
| 5699 | ray.mRelativePvsContribution);
|
---|
| 5700 |
|
---|
[1166] | 5701 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1168] | 5702 |
|
---|
[1259] | 5703 | AddSampleToPvs(
|
---|
| 5704 | ray.mOriginObject,
|
---|
| 5705 | ray.mOrigin,
|
---|
| 5706 | viewCell,
|
---|
| 5707 | ray.mPdf,
|
---|
| 5708 | ray.mRelativePvsContribution);
|
---|
| 5709 | #endif
|
---|
[1159] | 5710 | }
|
---|
| 5711 |
|
---|
| 5712 | return ray.mRelativePvsContribution;
|
---|
| 5713 | }
|
---|
| 5714 |
|
---|
| 5715 |
|
---|
[1259] | 5716 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 5717 | const Vector3 &hitPoint,
|
---|
| 5718 | ViewCell *vc,
|
---|
| 5719 | const float pdf,
|
---|
| 5720 | float &contribution) const
|
---|
| 5721 | {
|
---|
| 5722 | if (!obj) return false;
|
---|
| 5723 |
|
---|
| 5724 | switch (mHierarchyManager->GetObjectSpaceSubdivisonType())
|
---|
| 5725 | {
|
---|
| 5726 | case HierarchyManager::NO_OBJ_SUBDIV:
|
---|
| 5727 | // potentially visible objects
|
---|
| 5728 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 5729 |
|
---|
| 5730 | case HierarchyManager::KD_BASED_OBJ_SUBDIV:
|
---|
| 5731 | {
|
---|
| 5732 | // potentially visible kd cells
|
---|
| 5733 | KdLeaf *leaf = mOspTree->GetLeaf(hitPoint/*ray->mOriginNode*/);
|
---|
| 5734 | return mOspTree->AddLeafToPvs(leaf, vc, pdf, contribution);
|
---|
| 5735 | }
|
---|
| 5736 | case HierarchyManager::BV_BASED_OBJ_SUBDIV:
|
---|
| 5737 | {
|
---|
| 5738 | BvhLeaf *leaf = mBvHierarchy->GetLeaf(obj);
|
---|
| 5739 | return mBvHierarchy->AddLeafToPvs(leaf, vc, pdf, contribution);
|
---|
| 5740 | }
|
---|
| 5741 | default:
|
---|
| 5742 | return false;
|
---|
| 5743 | }
|
---|
| 5744 | }
|
---|
| 5745 |
|
---|
| 5746 |
|
---|
[1021] | 5747 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5748 | {
|
---|
| 5749 | // TODO
|
---|
| 5750 | }
|
---|
[580] | 5751 |
|
---|
[1201] | 5752 |
|
---|
| 5753 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5754 | ObjectContainer *objects,
|
---|
| 5755 | const bool finalizeViewCells,
|
---|
| 5756 | BoundingBoxConverter *bconverter)
|
---|
| 5757 |
|
---|
| 5758 | {
|
---|
| 5759 | ViewCellsManager *vm =
|
---|
| 5760 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
| 5761 |
|
---|
| 5762 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
| 5763 |
|
---|
| 5764 | return vm;
|
---|
| 5765 | }
|
---|
| 5766 |
|
---|
| 5767 |
|
---|
[1184] | 5768 | #if TEST_EVALUATION
|
---|
[1178] | 5769 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5770 | {
|
---|
[1180] | 5771 | int castSamples = (int)storedRays.size();
|
---|
[1178] | 5772 |
|
---|
| 5773 | char s[64];
|
---|
| 5774 | char statsPrefix[100];
|
---|
[1180] | 5775 |
|
---|
[1178] | 5776 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
| 5777 |
|
---|
| 5778 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 5779 |
|
---|
| 5780 | // should directional sampling be used?
|
---|
| 5781 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
| 5782 |
|
---|
| 5783 | cout << "reseting pvs ... ";
|
---|
| 5784 |
|
---|
| 5785 | const bool startFromZero = true;
|
---|
| 5786 |
|
---|
[1184] | 5787 |
|
---|
[1178] | 5788 | // reset pvs and start over from zero
|
---|
| 5789 | if (startFromZero)
|
---|
| 5790 | {
|
---|
| 5791 | mViewCellsTree->ResetPvs();
|
---|
| 5792 | }
|
---|
| 5793 | else // start from current sampless
|
---|
| 5794 | {
|
---|
| 5795 | // statistics before casting more samples
|
---|
| 5796 | cout << "compute new statistics ... ";
|
---|
| 5797 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5798 | string fName = string(statsPrefix) + string(s);
|
---|
| 5799 |
|
---|
| 5800 | mViewCellsTree->ExportStats(fName);
|
---|
| 5801 | cout << "finished" << endl;
|
---|
| 5802 | }
|
---|
| 5803 | cout << "finished" << endl;
|
---|
| 5804 |
|
---|
| 5805 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 5806 |
|
---|
| 5807 | VssRayContainer evaluationSamples = storedRays;
|
---|
| 5808 | const int samplingType = mEvaluationSamplingType;
|
---|
| 5809 |
|
---|
| 5810 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 5811 |
|
---|
| 5812 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 5813 |
|
---|
| 5814 | cout << "finished" << endl;
|
---|
| 5815 |
|
---|
| 5816 | cout << "compute new statistics ... ";
|
---|
| 5817 | Debug << "compute new statistics ... ";
|
---|
| 5818 |
|
---|
[1221] | 5819 | // propagate pvs or pvs size information
|
---|
[1178] | 5820 | ObjectPvs pvs;
|
---|
| 5821 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 5822 |
|
---|
[1259] | 5823 | ///////////////////////////////////////
|
---|
| 5824 | //-- temporary matt: test render cost
|
---|
[1178] | 5825 |
|
---|
[1259] | 5826 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5827 | string fileName = string(statsPrefix) + string(s);
|
---|
[1178] | 5828 |
|
---|
[1259] | 5829 | ViewCellContainer leaves;
|
---|
[1184] | 5830 |
|
---|
[1259] | 5831 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5832 | float rc = 0;
|
---|
| 5833 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5834 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5835 | {
|
---|
| 5836 | ViewCell *vc = *vit;
|
---|
[1184] | 5837 | int pvs = vc->GetPvs().CountObjectsInPvs();
|
---|
[1259] | 5838 | float vol = vc->GetVolume();
|
---|
| 5839 | rc += pvs * vol;
|
---|
[1184] | 5840 |
|
---|
| 5841 | }
|
---|
| 5842 |
|
---|
[1259] | 5843 | Debug << "\nhere295 " << rc / mVspTree->GetBoundingBox().GetVolume() << endl;
|
---|
[1178] | 5844 | mViewCellsTree->ExportStats(fileName);
|
---|
| 5845 | cout << "finished" << endl;
|
---|
| 5846 |
|
---|
| 5847 | disposeRays(evaluationSamples, NULL);
|
---|
| 5848 | }
|
---|
[1179] | 5849 | #endif
|
---|
[580] | 5850 |
|
---|
[860] | 5851 |
|
---|
[878] | 5852 | }
|
---|