[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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[1020] | 10 | #include "VspOspTree.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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[440] | 20 |
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[931] | 21 |
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[863] | 22 | namespace GtpVisibilityPreprocessor {
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[860] | 23 |
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| 24 |
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[712] | 25 | // HACK
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| 26 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 27 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 28 |
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[697] | 29 |
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| 30 |
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| 31 | template <typename T> class myless
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| 32 | {
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| 33 | public:
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| 34 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 35 | bool operator() (T v1, T v2) const
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| 36 | {
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| 37 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 38 | }
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| 39 | };
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| 40 |
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| 41 |
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[1004] | 42 | ViewCellsManager::ViewCellsManager():
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[480] | 43 | mRenderer(NULL),
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[574] | 44 | mInitialSamples(0),
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[440] | 45 | mConstructionSamples(0),
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| 46 | mPostProcessSamples(0),
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[470] | 47 | mVisualizationSamples(0),
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| 48 | mTotalAreaValid(false),
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[517] | 49 | mTotalArea(0.0f),
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[547] | 50 | mViewCellsFinished(false),
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[562] | 51 | mMaxPvsSize(9999999),
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[564] | 52 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 53 | mMaxPvsRatio(1.0),
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| 54 | mViewCellPvsIsUpdated(false)
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[440] | 55 | {
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[542] | 56 | mViewSpaceBox.Initialize();
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[482] | 57 | ParseEnvironment();
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[580] | 58 |
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[1004] | 59 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 60 | }
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| 61 |
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[517] | 62 |
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[482] | 63 | void ViewCellsManager::ParseEnvironment()
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| 64 | {
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[503] | 65 | // visualization stuff
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[1004] | 66 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 67 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 68 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 69 |
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[1004] | 70 | Environment::GetSingleton()->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 71 |
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[710] | 72 | // HACK
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| 73 | if (0)
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| 74 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 75 | else
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| 76 | mMinPvsSize = 0;
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| 77 |
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[1004] | 78 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 79 |
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[1004] | 80 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 81 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 82 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 83 |
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[1004] | 84 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 85 |
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[1004] | 86 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 87 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 88 |
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[1004] | 89 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 90 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 91 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 92 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 93 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 94 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 95 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 96 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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| 97 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 98 |
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[1004] | 99 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 100 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1121] | 101 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.countKdPvs", mCountKdPvs);
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[837] | 102 |
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[664] | 103 | char buf[100];
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[1004] | 104 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 105 |
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[660] | 106 |
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[1020] | 107 | // sampling type for view cells construction samples
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[664] | 108 | if (strcmp(buf, "box") == 0)
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[722] | 109 | {
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[660] | 110 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 111 | }
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[664] | 112 | else if (strcmp(buf, "directional") == 0)
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[722] | 113 | {
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[660] | 114 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 115 | }
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[1020] | 116 | else if (strcmp(buf, "object_directional") == 0)
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| 117 | {
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| 118 | mSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 119 | }
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[1022] | 120 | /*else if (strcmp(buf, "interior") == 0)
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| 121 | {
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| 122 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 123 | }*/
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[1020] | 124 | else
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| 125 | {
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[666] | 126 | Debug << "error! wrong sampling type" << endl;
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| 127 | exit(0);
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| 128 | }
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[660] | 129 |
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[1020] | 130 | // sampling type for evaluation samples
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[1004] | 131 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 132 |
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| 133 | if (strcmp(buf, "box") == 0)
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| 134 | {
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| 135 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 136 | }
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| 137 | else if (strcmp(buf, "directional") == 0)
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| 138 | {
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| 139 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 140 | }
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[1020] | 141 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 142 | {
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[1020] | 143 | mEvaluationSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 144 | }
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[1022] | 145 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 146 | {
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| 147 | mEvaluationSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 148 | }*/
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[1020] | 149 | else
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| 150 | {
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[722] | 151 | Debug << "error! wrong sampling type" << endl;
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| 152 | exit(0);
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| 153 | }
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[503] | 154 |
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[1004] | 155 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 156 |
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[734] | 157 | if (strcmp(buf, "perobject") == 0)
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[728] | 158 | {
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| 159 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 160 | }
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| 161 | else if (strcmp(buf, "directional") == 0)
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| 162 | {
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| 163 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 164 | }
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| 165 | else
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| 166 | {
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| 167 | Debug << "error! wrong sampling type" << endl;
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| 168 | exit(0);
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| 169 | }
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| 170 |
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[1004] | 171 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 172 |
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[482] | 173 | if (strcmp(buf, "PVS") == 0)
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| 174 | mColorCode = 1;
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| 175 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 176 | mColorCode = 2;
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| 177 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 178 | mColorCode = 3;
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| 179 | else
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| 180 | mColorCode = 0;
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| 181 |
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[664] | 182 |
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[710] | 183 |
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[1027] | 184 | Debug << "************ View Cells options ***************" << endl;
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[664] | 185 | Debug << "color code: " << mColorCode << endl;
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| 186 |
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| 187 | Debug << "export rays: " << mExportRays << endl;
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| 188 | Debug << "export geometry: " << mExportGeometry << endl;
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| 189 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 190 |
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[710] | 191 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 192 |
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| 193 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 194 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 195 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 196 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 197 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 198 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 199 | Debug << "export to file: " << mExportViewCells << endl;
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| 200 |
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[801] | 201 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 202 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 203 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 204 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 205 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 206 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 207 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 208 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 209 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 210 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 211 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 212 |
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| 213 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 214 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[1121] | 215 | Debug << "count kd pvs: " << mCountKdPvs << endl;
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| 216 |
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[664] | 217 | Debug << endl;
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[440] | 218 | }
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| 219 |
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[485] | 220 |
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[440] | 221 | ViewCellsManager::~ViewCellsManager()
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| 222 | {
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[1020] | 223 | // HACK: if view cells tree does not
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| 224 | // take care of view cells, we have to do it
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| 225 | // question: rather create view cells resource manager?
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[598] | 226 | if (!ViewCellsTreeConstructed())
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| 227 | CLEAR_CONTAINER(mViewCells);
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[1020] | 228 |
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[1002] | 229 | DEL_PTR(mViewCellsTree);
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[440] | 230 | }
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| 231 |
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[859] | 232 | AxisAlignedBox3
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| 233 | ViewCellsManager::GetViewCellBox(ViewCell *vc)
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| 234 | {
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| 235 | Mesh *m = vc->GetMesh();
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| 236 |
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| 237 | if (m) {
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| 238 | m->ComputeBoundingBox();
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| 239 | return m->mBox;
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| 240 | }
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[485] | 241 |
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[859] | 242 | AxisAlignedBox3 box;
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| 243 |
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| 244 | box.Initialize();
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| 245 |
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| 246 | if (!vc->IsLeaf()) {
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| 247 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 248 |
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| 249 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 250 | for (; it != vci->mChildren.end(); ++it) {
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| 251 | box.Include(GetViewCellBox(*it));
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| 252 | }
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| 253 | }
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| 254 |
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| 255 | return box;
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| 256 | }
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| 257 |
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[693] | 258 | void ViewCellsManager::CollectEmptyViewCells()
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| 259 | {
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| 260 | mEmptyViewCells.clear();
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| 261 | ViewCellContainer leaves;
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| 262 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 263 |
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| 264 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 265 |
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| 266 | cout << "collecting empty view cells" << endl;
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[694] | 267 |
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[693] | 268 | for (it = leaves.begin(); it != it_end; ++ it)
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| 269 | {
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| 270 | if ((*it)->GetPvs().Empty())
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| 271 | {
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| 272 | mEmptyViewCells.push_back(*it);
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| 273 | }
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| 274 | }
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[694] | 275 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 276 | }
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| 277 |
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| 278 |
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[1021] | 279 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
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| 280 | {
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| 281 | return false;
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| 282 | }
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| 283 |
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| 284 |
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[694] | 285 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 286 | {
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| 287 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 288 |
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| 289 | char buf[50];
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| 290 | int i = 0;
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| 291 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 292 | {
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| 293 | if (!(*it)->GetPvs().Empty())
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| 294 | {
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[694] | 295 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 296 | Exporter *exporter = Exporter::GetExporter(buf);
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| 297 |
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| 298 | if (exporter && i < 20)
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| 299 | {
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[694] | 300 | Ray *pray = (*it)->mPiercingRays[0];
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[728] | 301 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: "
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| 302 | << (*it)->GetPvs().GetSize() << " " << (int)pray->intersections.size() << endl;
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[694] | 303 |
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| 304 | exporter->ExportRays((*it)->mPiercingRays);
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| 305 |
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| 306 | exporter->SetFilled();
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| 307 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 308 |
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| 309 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 310 | {
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| 311 | if (pray->intersections[j].mObject)
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| 312 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 313 | }
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| 314 |
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| 315 | //exporter->SetWireframe();
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| 316 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 317 | exporter->ExportGeometry(obj);
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| 318 |
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| 319 | exporter->SetFilled();
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| 320 |
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| 321 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 322 | ExportViewCellGeometry(exporter, *it);
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[694] | 323 |
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| 324 | delete exporter;
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[693] | 325 | }
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| 326 |
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[694] | 327 |
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[693] | 328 | ++ i;
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| 329 | }
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| 330 | }
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[1002] | 331 | Debug << "\nSampled " << i << " new view cells ("
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| 332 | << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 333 | }
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| 334 |
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| 335 |
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[574] | 336 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 337 | const int sampleType,
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| 338 | VssRayContainer &passSamples) const
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[527] | 339 | {
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[570] | 340 | SimpleRayContainer simpleRays;
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[540] | 341 |
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[573] | 342 | preprocessor->GenerateRays(samplesPerPass,
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| 343 | sampleType,
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[570] | 344 | simpleRays);
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[564] | 345 |
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[573] | 346 | // shoot simple ray and add it to importance samples
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| 347 | preprocessor->CastRays(simpleRays, passSamples);
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[570] | 348 |
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[574] | 349 | return (int)passSamples.size();
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| 350 | }
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[570] | 351 |
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[574] | 352 |
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[607] | 353 |
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[574] | 354 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 355 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 356 | {
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| 357 | cout << "disposing samples ... ";
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[582] | 358 | long startTime = GetTime();
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| 359 | int n = (int)rays.size();
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| 360 |
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[573] | 361 | if (outRays)
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[542] | 362 | {
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[574] | 363 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 364 |
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| 365 | for (it = rays.begin(); it != it_end; ++ it)
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| 366 | {
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| 367 | outRays->push_back(*it);
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| 368 | }
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[573] | 369 | }
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| 370 | else
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| 371 | {
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[639] | 372 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 373 |
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| 374 | for (it = rays.begin(); it != it_end; ++ it)
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| 375 | {
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| 376 | //(*it)->Unref();
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| 377 | if (!(*it)->IsActive())
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| 378 | delete (*it);
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| 379 | }
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[573] | 380 | }
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[639] | 381 |
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[574] | 382 | cout << "finished" << endl;
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[582] | 383 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 384 | }
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[570] | 385 |
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| 386 |
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[573] | 387 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 388 | {
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| 389 | int numSamples = 0;
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[1077] | 390 |
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[573] | 391 | SimpleRayContainer simpleRays;
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[574] | 392 | VssRayContainer initialSamples;
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[540] | 393 |
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[574] | 394 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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[712] | 395 |
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[752] | 396 | long startTime = GetTime();
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| 397 |
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[573] | 398 | //-- construction rays => we use uniform samples for this
|
---|
[574] | 399 | CastPassSamples(mInitialSamples,
|
---|
[660] | 400 | mSamplingType,
|
---|
[574] | 401 | initialSamples);
|
---|
[573] | 402 |
|
---|
[574] | 403 | cout << "finished" << endl;
|
---|
| 404 |
|
---|
[660] | 405 |
|
---|
[573] | 406 | // construct view cells
|
---|
[752] | 407 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 408 |
|
---|
[727] | 409 | // initial samples count for overall samples ...
|
---|
[752] | 410 | numSamples += mInitialSamples;
|
---|
[542] | 411 |
|
---|
[574] | 412 | // rays can be passed or deleted
|
---|
[639] | 413 | disposeRays(initialSamples, outRays);
|
---|
[752] | 414 |
|
---|
| 415 | cout << "time needed for initial construction: "
|
---|
| 416 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 417 |
|
---|
| 418 | Debug << "time needed for initial construction: "
|
---|
| 419 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 420 |
|
---|
[1027] | 421 |
|
---|
[752] | 422 | // take post processing time
|
---|
| 423 | startTime = GetTime();
|
---|
| 424 |
|
---|
[660] | 425 | // -- stats after contruction
|
---|
| 426 | ResetViewCells();
|
---|
[667] | 427 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
| 428 |
|
---|
[1002] | 429 |
|
---|
[1077] | 430 | if (0) // export initial view cells
|
---|
[660] | 431 | {
|
---|
[712] | 432 | const char filename[] = "view_cells.wrl";
|
---|
| 433 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
[660] | 434 |
|
---|
[712] | 435 |
|
---|
[660] | 436 | if (exporter)
|
---|
| 437 | {
|
---|
[712] | 438 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
|
---|
[660] | 439 | if (mExportGeometry)
|
---|
[712] | 440 | {
|
---|
[660] | 441 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 442 | }
|
---|
[660] | 443 |
|
---|
[750] | 444 | exporter->SetWireframe();
|
---|
[660] | 445 | ExportViewCellsForViz(exporter);
|
---|
| 446 |
|
---|
| 447 | delete exporter;
|
---|
[712] | 448 | cout << "finished" << endl;
|
---|
[660] | 449 | }
|
---|
| 450 | }
|
---|
| 451 |
|
---|
[573] | 452 | //-- guided rays are used for further sampling
|
---|
[574] | 453 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[570] | 454 |
|
---|
[666] | 455 | // should we use directional samples?
|
---|
[694] | 456 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 457 |
|
---|
[1074] | 458 | //-- do some more sampling
|
---|
[573] | 459 | while (numSamples < n)
|
---|
| 460 | {
|
---|
[596] | 461 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 462 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 463 |
|
---|
[574] | 464 | VssRayContainer constructionSamples;
|
---|
| 465 |
|
---|
[694] | 466 | const int samplingType = mSamplingType;
|
---|
| 467 | /*dirSamples ?
|
---|
[574] | 468 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
[694] | 469 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
|
---|
[667] | 470 |
|
---|
[720] | 471 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 472 |
|
---|
[727] | 473 | // cast new samples
|
---|
[574] | 474 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 475 | samplingType,
|
---|
[574] | 476 | constructionSamples);
|
---|
| 477 |
|
---|
| 478 | cout << "finished" << endl;
|
---|
| 479 |
|
---|
| 480 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 481 |
|
---|
[727] | 482 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 483 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 484 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 485 |
|
---|
[574] | 486 | cout << "finished" << endl;
|
---|
| 487 |
|
---|
| 488 |
|
---|
[639] | 489 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 490 |
|
---|
| 491 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 492 | }
|
---|
[752] | 493 |
|
---|
[573] | 494 | //-- post processing
|
---|
| 495 | VssRayContainer postProcessSamples;
|
---|
[570] | 496 |
|
---|
[1074] | 497 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 498 |
|
---|
| 499 | // cast post processing samples rays (storing the view cells if wanted)
|
---|
[574] | 500 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 501 | mSamplingType,
|
---|
[574] | 502 | postProcessSamples);
|
---|
[660] | 503 |
|
---|
[1074] | 504 | cout << "finished" << endl;
|
---|
[660] | 505 |
|
---|
| 506 | // stats before post processing (i.e., merge)
|
---|
| 507 | EvaluateViewCellsStats();
|
---|
| 508 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 509 |
|
---|
| 510 | mRenderer->RenderScene();
|
---|
| 511 | SimulationStatistics ss;
|
---|
| 512 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 513 |
|
---|
| 514 | Debug << ss << endl;
|
---|
| 515 |
|
---|
| 516 |
|
---|
[574] | 517 | cout << "starting post processing and visualization" << endl;
|
---|
| 518 |
|
---|
[660] | 519 |
|
---|
[666] | 520 | // store view cells for postprocessing
|
---|
[574] | 521 | const bool storeViewCells = true;
|
---|
[605] | 522 |
|
---|
[660] | 523 |
|
---|
[605] | 524 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 525 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 526 |
|
---|
[720] | 527 | //-- post processing (e.g.,merging) of the view cells
|
---|
[1077] | 528 | if (1) PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 529 |
|
---|
[955] | 530 | cout << "time needed for post processing (merge) step: "
|
---|
[752] | 531 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 532 |
|
---|
[955] | 533 | Debug << "time needed for post processing (merge) step: "
|
---|
[752] | 534 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 535 |
|
---|
[1002] | 536 | disposeRays(postProcessSamples, outRays);
|
---|
| 537 |
|
---|
[801] | 538 |
|
---|
[1002] | 539 | //return 1;
|
---|
[801] | 540 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
| 541 | if (mEvaluateViewCells)
|
---|
| 542 | {
|
---|
| 543 | EvalViewCellPartition(preprocessor);
|
---|
| 544 | }
|
---|
[1002] | 545 |
|
---|
| 546 |
|
---|
[574] | 547 | //-- visualization
|
---|
[1074] | 548 |
|
---|
[666] | 549 | if (mShowVisualization)
|
---|
| 550 | {
|
---|
| 551 | VssRayContainer visualizationSamples;
|
---|
[574] | 552 |
|
---|
[666] | 553 | //-- construction rays => we use uniform samples for this
|
---|
| 554 | CastPassSamples(mVisualizationSamples,
|
---|
| 555 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 556 | visualizationSamples);
|
---|
[574] | 557 |
|
---|
[666] | 558 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 559 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 560 |
|
---|
[666] | 561 | // different visualizations
|
---|
| 562 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 563 |
|
---|
[666] | 564 | disposeRays(visualizationSamples, outRays);
|
---|
| 565 | }
|
---|
[574] | 566 |
|
---|
[573] | 567 | return numSamples;
|
---|
[527] | 568 | }
|
---|
| 569 |
|
---|
[547] | 570 |
|
---|
[752] | 571 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 572 | const int nViewCells)
|
---|
[728] | 573 | {
|
---|
| 574 | std::ofstream outstream;
|
---|
| 575 | outstream.open(filename.c_str());
|
---|
| 576 |
|
---|
| 577 | ViewCellContainer viewCells;
|
---|
[735] | 578 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 579 |
|
---|
| 580 | float maxRenderCost, minRenderCost;
|
---|
[734] | 581 |
|
---|
| 582 | // sort by render cost
|
---|
| 583 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 584 |
|
---|
| 585 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 586 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 587 |
|
---|
[991] | 588 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 589 |
|
---|
[997] | 590 | int histoIntervals;
|
---|
[1004] | 591 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 592 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 593 |
|
---|
[997] | 594 | int histoMaxVal;
|
---|
[1004] | 595 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 596 | maxRenderCost = max(histoMaxVal, maxRenderCost);
|
---|
[991] | 597 |
|
---|
[997] | 598 |
|
---|
[728] | 599 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 600 | const float stepSize = range / (float)intervals;
|
---|
[728] | 601 |
|
---|
[735] | 602 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 603 |
|
---|
| 604 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 605 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 606 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 607 |
|
---|
[736] | 608 | int j = 0;
|
---|
[735] | 609 | int i = 0;
|
---|
| 610 |
|
---|
[734] | 611 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 612 |
|
---|
[744] | 613 | // count for integral
|
---|
| 614 | float volSum = 0;
|
---|
| 615 | int smallerCostSum = 0;
|
---|
[735] | 616 |
|
---|
[734] | 617 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 618 | while (1)
|
---|
| 619 | {
|
---|
[744] | 620 | // count for histogram value
|
---|
| 621 | float volDif = 0;
|
---|
| 622 | int smallerCostDif = 0;
|
---|
[736] | 623 |
|
---|
[734] | 624 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 625 | {
|
---|
[744] | 626 | volSum += viewCells[i]->GetVolume();
|
---|
| 627 | volDif += viewCells[i]->GetVolume();
|
---|
| 628 |
|
---|
[734] | 629 | ++ i;
|
---|
[744] | 630 | ++ smallerCostSum;
|
---|
| 631 | ++ smallerCostDif;
|
---|
[734] | 632 | }
|
---|
[736] | 633 |
|
---|
[744] | 634 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 635 | break;
|
---|
[736] | 636 |
|
---|
[744] | 637 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 638 | const float volRatioSum = volSum / totalVol;
|
---|
| 639 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 640 |
|
---|
[991] | 641 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 642 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 643 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 644 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 645 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 646 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 647 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 648 |
|
---|
| 649 | // increase current render cost
|
---|
[734] | 650 | currentRenderCost += stepSize;
|
---|
| 651 | }
|
---|
[735] | 652 |
|
---|
[734] | 653 | outstream.close();
|
---|
| 654 | }
|
---|
| 655 |
|
---|
[735] | 656 |
|
---|
[979] | 657 |
|
---|
| 658 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 659 | ObjectContainer *objects,
|
---|
| 660 | const bool finalizeViewCells,
|
---|
| 661 | BoundingBoxConverter *bconverter)
|
---|
| 662 |
|
---|
| 663 | {
|
---|
| 664 | ViewCellsParser parser;
|
---|
| 665 |
|
---|
| 666 | ViewCellsManager *vm = NULL;
|
---|
| 667 |
|
---|
[1004] | 668 | if (parser.ParseFile(filename, &vm, objects, bconverter))
|
---|
[979] | 669 | {
|
---|
| 670 | long startTime = GetTime();
|
---|
| 671 |
|
---|
| 672 | //vm->PrepareLoadedViewCells();
|
---|
| 673 | vm->ResetViewCells();
|
---|
| 674 |
|
---|
| 675 | vm->mViewCellsFinished = true;
|
---|
| 676 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 677 |
|
---|
| 678 | // create the meshes and compute volumes
|
---|
| 679 | if (finalizeViewCells)
|
---|
| 680 | {
|
---|
| 681 | vm->FinalizeViewCells(true);
|
---|
| 682 | vm->mViewCellsTree->AssignRandomColors();
|
---|
| 683 | }
|
---|
| 684 |
|
---|
| 685 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 686 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 687 | }
|
---|
| 688 | else
|
---|
| 689 | {
|
---|
| 690 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 691 | DEL_PTR(vm);
|
---|
| 692 | }
|
---|
| 693 |
|
---|
| 694 | return vm;
|
---|
| 695 | }
|
---|
| 696 |
|
---|
| 697 |
|
---|
| 698 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 699 | const bool exportPvs,
|
---|
| 700 | const ObjectContainer &objects)
|
---|
| 701 | {
|
---|
[1002] | 702 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[997] | 703 | return false;
|
---|
| 704 |
|
---|
[979] | 705 | cout << "exporting view cells to xml ... ";
|
---|
| 706 |
|
---|
| 707 | #if ZIPPED_VIEWCELLS
|
---|
| 708 | ogzstream stream(filename.c_str());
|
---|
| 709 | #else
|
---|
| 710 | std::ofstream stream(filename.c_str());
|
---|
| 711 | #endif
|
---|
| 712 |
|
---|
| 713 | // for output we need unique ids for each view cell
|
---|
| 714 | CreateUniqueViewCellIds();
|
---|
| 715 |
|
---|
| 716 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 717 | stream << "<VisibilitySolution>" << endl;
|
---|
| 718 |
|
---|
| 719 | //-- the view space bounding box
|
---|
| 720 | stream << "<ViewSpaceBox"
|
---|
| 721 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 722 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 723 |
|
---|
[1112] | 724 | if (exportPvs) {
|
---|
[979] | 725 | //-- export bounding boxes
|
---|
| 726 | stream << "<BoundingBoxes>" << endl;
|
---|
| 727 |
|
---|
| 728 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 729 |
|
---|
| 730 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 731 | {
|
---|
| 732 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 733 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 734 |
|
---|
| 735 | //-- the bounding boxes
|
---|
| 736 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 737 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 738 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 739 | }
|
---|
| 740 |
|
---|
| 741 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 742 | }
|
---|
[979] | 743 |
|
---|
| 744 | //-- export the view cells and the pvs
|
---|
| 745 | stream << "<HierarchyType name=\"vspBspTree\" />" << endl;
|
---|
| 746 |
|
---|
| 747 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 748 |
|
---|
| 749 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 750 |
|
---|
| 751 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 752 |
|
---|
| 753 | stream << "</ViewCells>" << endl;
|
---|
| 754 |
|
---|
| 755 |
|
---|
| 756 | //-- export the spatial hierarchy
|
---|
| 757 |
|
---|
| 758 | // the type of the view cells hierarchy
|
---|
| 759 | stream << "<Hierarchy>" << endl;
|
---|
| 760 | mVspBspTree->Export(stream);
|
---|
| 761 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 762 |
|
---|
| 763 | stream << "</VisibilitySolution>" << endl;
|
---|
| 764 |
|
---|
| 765 |
|
---|
| 766 | stream.close();
|
---|
| 767 | cout << "finished" << endl;
|
---|
| 768 |
|
---|
| 769 | return true;
|
---|
| 770 | }
|
---|
| 771 |
|
---|
| 772 |
|
---|
[735] | 773 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 774 | const int nViewCells)
|
---|
[734] | 775 | {
|
---|
| 776 | std::ofstream outstream;
|
---|
| 777 | outstream.open(filename.c_str());
|
---|
| 778 |
|
---|
| 779 | ViewCellContainer viewCells;
|
---|
[735] | 780 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 781 |
|
---|
[997] | 782 | int maxPvs, maxVal, minVal;
|
---|
[734] | 783 |
|
---|
[997] | 784 | // sort by pvs size
|
---|
[735] | 785 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 786 |
|
---|
[1121] | 787 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back(), mCountKdPvs);
|
---|
[997] | 788 | minVal = 0;
|
---|
| 789 |
|
---|
[991] | 790 | // hack: normalize pvs size
|
---|
[997] | 791 | int histoMaxVal;
|
---|
[1004] | 792 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 793 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 794 |
|
---|
[1121] | 795 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 796 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 797 |
|
---|
[997] | 798 | int histoIntervals;
|
---|
[1004] | 799 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 800 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 801 |
|
---|
[997] | 802 | const int range = maxVal - minVal;
|
---|
[735] | 803 | int stepSize = range / intervals;
|
---|
| 804 |
|
---|
[997] | 805 | // set step size to avoid endless loop
|
---|
[735] | 806 | if (!stepSize) stepSize = 1;
|
---|
[979] | 807 |
|
---|
| 808 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 809 |
|
---|
[735] | 810 |
|
---|
| 811 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 812 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 813 |
|
---|
[997] | 814 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
[735] | 815 |
|
---|
[997] | 816 |
|
---|
[735] | 817 | int i = 0;
|
---|
| 818 | int j = 0;
|
---|
[734] | 819 |
|
---|
[744] | 820 | float volSum = 0;
|
---|
| 821 | int smallerSum = 0;
|
---|
| 822 |
|
---|
[735] | 823 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 824 |
|
---|
[997] | 825 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 826 | {
|
---|
[744] | 827 | float volDif = 0;
|
---|
| 828 | int smallerDif = 0;
|
---|
[736] | 829 |
|
---|
[997] | 830 | while ((i < (int)viewCells.size()) &&
|
---|
[1121] | 831 | (mViewCellsTree->GetPvsSize(viewCells[i], mCountKdPvs) < currentPvs))
|
---|
[735] | 832 | {
|
---|
[744] | 833 | volDif += viewCells[i]->GetVolume();
|
---|
| 834 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 835 |
|
---|
[735] | 836 | ++ i;
|
---|
[744] | 837 | ++ smallerDif;
|
---|
| 838 | ++ smallerSum;
|
---|
[735] | 839 | }
|
---|
[736] | 840 |
|
---|
[997] | 841 | if (0 && (i < (int)viewCells.size()))
|
---|
[1121] | 842 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i], mCountKdPvs)
|
---|
| 843 | << " " << currentPvs << endl;
|
---|
[997] | 844 |
|
---|
[744] | 845 | const float volRatioDif = volDif / totalVol;
|
---|
| 846 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 847 |
|
---|
[997] | 848 | outstream << "#Pass\n" << j << endl;
|
---|
| 849 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 850 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 851 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 852 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 853 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 854 |
|
---|
| 855 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 856 |
|
---|
[997] | 857 | //-- increase current pvs size to define next interval
|
---|
| 858 | currentPvs += stepSize;
|
---|
[728] | 859 | }
|
---|
[991] | 860 |
|
---|
[735] | 861 | outstream.close();
|
---|
[728] | 862 | }
|
---|
| 863 |
|
---|
[735] | 864 |
|
---|
[1002] | 865 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 866 | {
|
---|
| 867 | return mExportPvs;
|
---|
| 868 | }
|
---|
| 869 |
|
---|
| 870 |
|
---|
[664] | 871 | void ViewCellsManager::EvalViewCellPartition(Preprocessor *preprocessor)
|
---|
[660] | 872 | {
|
---|
| 873 | int samplesPerPass;
|
---|
| 874 | int numSamples;
|
---|
| 875 | int castSamples = 0;
|
---|
| 876 |
|
---|
[664] | 877 | char s[64];
|
---|
| 878 |
|
---|
[1004] | 879 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 880 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 881 |
|
---|
[664] | 882 | char statsPrefix[100];
|
---|
[1004] | 883 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 884 |
|
---|
[664] | 885 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 886 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 887 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 888 |
|
---|
[666] | 889 | // should directional sampling be used?
|
---|
[722] | 890 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 891 |
|
---|
[801] | 892 | cout << "reseting pvs ... ";
|
---|
| 893 |
|
---|
| 894 |
|
---|
[666] | 895 | bool startFromZero = true;
|
---|
| 896 |
|
---|
| 897 | // reset pvs and start over from zero
|
---|
| 898 | if (startFromZero)
|
---|
| 899 | {
|
---|
| 900 | mViewCellsTree->ResetPvs();
|
---|
| 901 | }
|
---|
| 902 | else // statistics without addidtional samples
|
---|
| 903 | {
|
---|
| 904 | cout << "compute new statistics ... ";
|
---|
| 905 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 906 | string fName = string(statsPrefix) + string(s);
|
---|
| 907 |
|
---|
| 908 | mViewCellsTree->ExportStats(fName);
|
---|
| 909 | cout << "finished" << endl;
|
---|
| 910 | }
|
---|
| 911 |
|
---|
[744] | 912 | cout << "finished" << endl;
|
---|
| 913 |
|
---|
| 914 | cout << "Evaluating view cell partition" << endl;
|
---|
| 915 |
|
---|
[660] | 916 | while (castSamples < numSamples)
|
---|
| 917 | {
|
---|
[664] | 918 | VssRayContainer evaluationSamples;
|
---|
[663] | 919 |
|
---|
[722] | 920 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 921 | /* dirSamples ?
|
---|
[664] | 922 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 923 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 924 | */
|
---|
[1004] | 925 | long startTime = GetTime();
|
---|
| 926 |
|
---|
[664] | 927 | //-- construction rays => we use uniform samples for this
|
---|
[1004] | 928 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 929 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 930 |
|
---|
[664] | 931 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 932 |
|
---|
| 933 | castSamples += samplesPerPass;
|
---|
| 934 |
|
---|
[1004] | 935 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 936 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 937 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 938 |
|
---|
[1004] | 939 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 940 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 941 |
|
---|
| 942 | startTime = GetTime();
|
---|
| 943 |
|
---|
[664] | 944 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 945 |
|
---|
[1004] | 946 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 947 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 948 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 949 |
|
---|
[1004] | 950 | startTime = GetTime();
|
---|
[801] | 951 |
|
---|
[1004] | 952 | cout << "compute new statistics ... ";
|
---|
| 953 | Debug << "compute new statistics ... ";
|
---|
| 954 |
|
---|
[801] | 955 | //-- propagate pvs or pvs size information
|
---|
[752] | 956 | ObjectPvs pvs;
|
---|
| 957 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 958 |
|
---|
[801] | 959 | //-- output stats
|
---|
[667] | 960 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 961 | string fileName = string(statsPrefix) + string(s);
|
---|
| 962 |
|
---|
| 963 | mViewCellsTree->ExportStats(fileName);
|
---|
| 964 |
|
---|
[1004] | 965 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 966 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 967 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 968 |
|
---|
[664] | 969 |
|
---|
| 970 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 971 | }
|
---|
[728] | 972 |
|
---|
[997] | 973 |
|
---|
| 974 | //-- histogram
|
---|
| 975 |
|
---|
[735] | 976 | bool useHisto;
|
---|
[997] | 977 | int histoStepSize;
|
---|
[693] | 978 |
|
---|
[1004] | 979 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 980 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 981 |
|
---|
[744] | 982 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 983 |
|
---|
| 984 |
|
---|
[735] | 985 | if (useHisto)
|
---|
[734] | 986 | {
|
---|
[735] | 987 | // evaluate view cells in a histogram
|
---|
| 988 | char s[64];
|
---|
| 989 |
|
---|
[997] | 990 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 991 | {
|
---|
[997] | 992 | string filename;
|
---|
[744] | 993 |
|
---|
[997] | 994 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 995 | #if 0
|
---|
[744] | 996 | //-- evaluate histogram for render cost
|
---|
| 997 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 998 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 999 |
|
---|
| 1000 | EvalViewCellHistogram(filename, pass);
|
---|
| 1001 |
|
---|
[997] | 1002 | #endif
|
---|
[744] | 1003 | //////////////////////////////////////////
|
---|
[752] | 1004 | //-- evaluate histogram for pvs size
|
---|
[744] | 1005 |
|
---|
| 1006 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1007 |
|
---|
| 1008 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1009 | filename = string(statsPrefix) + string(s);
|
---|
| 1010 |
|
---|
| 1011 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1012 | }
|
---|
[734] | 1013 | }
|
---|
| 1014 |
|
---|
[693] | 1015 | // find empty view cells bug
|
---|
[694] | 1016 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
[719] | 1017 | {
|
---|
[694] | 1018 | TestEmptyViewCells(preprocessor->mObjects);
|
---|
[719] | 1019 | }
|
---|
[660] | 1020 | }
|
---|
| 1021 |
|
---|
[704] | 1022 |
|
---|
| 1023 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1024 | {
|
---|
[704] | 1025 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1026 | }
|
---|
[660] | 1027 |
|
---|
[703] | 1028 |
|
---|
[728] | 1029 | // Returns index of the best view cells of the neighborhood
|
---|
[704] | 1030 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 1031 | {
|
---|
[705] | 1032 | int bestViewCellIdx = 0;
|
---|
[703] | 1033 |
|
---|
[704] | 1034 | float mergeCost = Limits::Infinity;
|
---|
| 1035 | int i = 0;
|
---|
[703] | 1036 |
|
---|
[734] | 1037 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1038 |
|
---|
[734] | 1039 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1040 | {
|
---|
[734] | 1041 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1042 |
|
---|
| 1043 | if (mc < mergeCost)
|
---|
[704] | 1044 | {
|
---|
| 1045 | mergeCost = mc;
|
---|
| 1046 | bestViewCellIdx = i;
|
---|
[703] | 1047 | }
|
---|
[704] | 1048 | }
|
---|
[703] | 1049 |
|
---|
[704] | 1050 | return bestViewCellIdx;
|
---|
| 1051 | }
|
---|
[703] | 1052 |
|
---|
| 1053 |
|
---|
[728] | 1054 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1055 | {
|
---|
| 1056 | mMaxFilterSize = size;
|
---|
| 1057 | }
|
---|
| 1058 |
|
---|
| 1059 |
|
---|
| 1060 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1061 | {
|
---|
| 1062 | switch (mRenderCostEvaluationType)
|
---|
| 1063 | {
|
---|
| 1064 | case PER_OBJECT:
|
---|
[752] | 1065 | //cout << "perobject" << endl;
|
---|
| 1066 | return 1.0f;
|
---|
[728] | 1067 |
|
---|
| 1068 | case PER_TRIANGLE:
|
---|
[735] | 1069 | {cout << "pertriangle" << endl;
|
---|
[728] | 1070 | // HACK
|
---|
| 1071 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1072 |
|
---|
| 1073 | // HACK: assume meshes are triangles
|
---|
| 1074 | if (mi->GetMesh())
|
---|
| 1075 | {
|
---|
| 1076 | return mi->GetMesh()->mFaces.size();
|
---|
| 1077 | }
|
---|
| 1078 | }
|
---|
| 1079 | default:
|
---|
[752] | 1080 | cout << "default" << endl;
|
---|
| 1081 | return 1.0f;
|
---|
[728] | 1082 | }
|
---|
| 1083 |
|
---|
| 1084 | // should not come here
|
---|
[752] | 1085 | return 0.0f;
|
---|
[728] | 1086 | }
|
---|
| 1087 |
|
---|
| 1088 |
|
---|
[704] | 1089 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1090 | const ViewCellContainer &viewCells)
|
---|
| 1091 | {
|
---|
| 1092 | ViewCell *root = currentViewCell;
|
---|
| 1093 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1094 |
|
---|
[704] | 1095 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1096 |
|
---|
[704] | 1097 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1098 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 1099 |
|
---|
[705] | 1100 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 1101 | //const float maxAvgCost = 350;
|
---|
| 1102 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1103 | {
|
---|
[704] | 1104 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1105 |
|
---|
[704] | 1106 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1107 |
|
---|
[704] | 1108 | // remove from vector
|
---|
| 1109 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1110 | neighborhood.pop_back();
|
---|
[705] | 1111 |
|
---|
[713] | 1112 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 1113 | if (!bestViewCell || !root)
|
---|
| 1114 | cout << "warning!!" << endl;
|
---|
[705] | 1115 |
|
---|
[704] | 1116 | // create new root of the hierarchy
|
---|
| 1117 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1118 | }
|
---|
| 1119 |
|
---|
[704] | 1120 | return root;
|
---|
[703] | 1121 | }
|
---|
| 1122 |
|
---|
[704] | 1123 |
|
---|
[713] | 1124 | struct SortableViewCellEntry {
|
---|
| 1125 |
|
---|
| 1126 | SortableViewCellEntry() {}
|
---|
| 1127 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
| 1128 |
|
---|
| 1129 | float mValue;
|
---|
| 1130 | ViewCell *mViewCell;
|
---|
| 1131 |
|
---|
| 1132 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1133 | return a.mValue < b.mValue;
|
---|
| 1134 | }
|
---|
| 1135 | };
|
---|
| 1136 |
|
---|
| 1137 | ViewCell *
|
---|
| 1138 | ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1139 | const ViewCellContainer &viewCells)
|
---|
| 1140 | {
|
---|
| 1141 |
|
---|
| 1142 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1143 | int i, j;
|
---|
| 1144 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1145 | if (viewCells[i] != currentViewCell)
|
---|
| 1146 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1147 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1148 | viewCells[i]);
|
---|
| 1149 | }
|
---|
| 1150 | neighborhood.resize(j);
|
---|
| 1151 |
|
---|
| 1152 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1153 |
|
---|
| 1154 | ViewCell *root = currentViewCell;
|
---|
| 1155 |
|
---|
| 1156 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1157 |
|
---|
| 1158 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1159 | //-- use priority queue to merge leaf pairs
|
---|
| 1160 |
|
---|
| 1161 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1162 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1163 | {
|
---|
[713] | 1164 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1165 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1166 | // create new root of the hierarchy
|
---|
| 1167 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1168 | // set negative cost so that this view cell gets deleted
|
---|
| 1169 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1170 | }
|
---|
[713] | 1171 |
|
---|
| 1172 | return root;
|
---|
| 1173 | }
|
---|
| 1174 |
|
---|
| 1175 | void
|
---|
| 1176 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1177 | ) const
|
---|
| 1178 | {
|
---|
| 1179 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 1180 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1181 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1182 |
|
---|
| 1183 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1184 | DeleteLocalMergeTree(*it);
|
---|
| 1185 | vci->mChildren.clear();
|
---|
| 1186 | delete vci;
|
---|
| 1187 | }
|
---|
| 1188 | }
|
---|
| 1189 |
|
---|
[1021] | 1190 |
|
---|
[564] | 1191 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1192 | int minPvsSize,
|
---|
[562] | 1193 | int maxPvsSize) const
|
---|
[547] | 1194 | {
|
---|
[569] | 1195 |
|
---|
[710] | 1196 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
|
---|
| 1197 | (vc->GetPvs().GetSize() < minPvsSize))
|
---|
[564] | 1198 | {
|
---|
[710] | 1199 | return false;
|
---|
[561] | 1200 | }
|
---|
[570] | 1201 |
|
---|
[710] | 1202 | return true;
|
---|
[547] | 1203 | }
|
---|
| 1204 |
|
---|
| 1205 |
|
---|
[710] | 1206 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1207 | ViewCellContainer &viewCells) const
|
---|
| 1208 | {
|
---|
| 1209 | return 0;
|
---|
| 1210 | };
|
---|
| 1211 |
|
---|
[1021] | 1212 |
|
---|
[697] | 1213 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1214 | const float width) const
|
---|
| 1215 | {
|
---|
[746] | 1216 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1217 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1218 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1219 |
|
---|
| 1220 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1221 | }
|
---|
| 1222 |
|
---|
| 1223 |
|
---|
[904] | 1224 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1225 | PrVs &prvs,
|
---|
| 1226 | const float filterWidth)
|
---|
[697] | 1227 | {
|
---|
[1112] | 1228 |
|
---|
[746] | 1229 |
|
---|
[1112] | 1230 |
|
---|
| 1231 |
|
---|
[746] | 1232 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1233 |
|
---|
[1112] | 1234 | if (mMaxFilterSize < 1) {
|
---|
| 1235 | prvs.mViewCell = currentViewCell;
|
---|
| 1236 | return;
|
---|
| 1237 | }
|
---|
| 1238 |
|
---|
| 1239 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1240 |
|
---|
[746] | 1241 | if (currentViewCell) {
|
---|
[697] | 1242 | ViewCellContainer viewCells;
|
---|
| 1243 | ComputeBoxIntersections(box, viewCells);
|
---|
[1112] | 1244 |
|
---|
| 1245 |
|
---|
[713] | 1246 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1247 | prvs.mViewCell = root;
|
---|
[1112] | 1248 |
|
---|
[746] | 1249 | } else
|
---|
| 1250 | prvs.mViewCell = NULL;
|
---|
| 1251 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1252 | }
|
---|
| 1253 |
|
---|
| 1254 |
|
---|
[581] | 1255 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1256 | {
|
---|
[1002] | 1257 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1258 | }
|
---|
| 1259 |
|
---|
| 1260 |
|
---|
[564] | 1261 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1262 | int minPvs,
|
---|
[562] | 1263 | int maxPvs) const
|
---|
| 1264 | {
|
---|
| 1265 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1266 | }
|
---|
| 1267 |
|
---|
[577] | 1268 |
|
---|
[569] | 1269 | void
|
---|
| 1270 | ViewCellsManager::SetValidity(
|
---|
[570] | 1271 | int minPvsSize,
|
---|
[569] | 1272 | int maxPvsSize) const
|
---|
| 1273 | {
|
---|
[991] | 1274 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1275 |
|
---|
[991] | 1276 |
|
---|
| 1277 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1278 | {
|
---|
| 1279 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1280 | }
|
---|
[569] | 1281 | }
|
---|
[562] | 1282 |
|
---|
[569] | 1283 | void
|
---|
| 1284 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1285 | const float minValid,
|
---|
| 1286 | const float maxValid
|
---|
| 1287 | )
|
---|
| 1288 | {
|
---|
[997] | 1289 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1290 |
|
---|
[997] | 1291 | int start = mViewCells.size()*minValid;
|
---|
| 1292 | int end = mViewCells.size()*maxValid;
|
---|
[570] | 1293 |
|
---|
[997] | 1294 | for (int i = 0; i < mViewCells.size(); ++ i)
|
---|
| 1295 | {
|
---|
| 1296 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1297 | }
|
---|
[569] | 1298 | }
|
---|
| 1299 |
|
---|
[991] | 1300 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1301 | {
|
---|
[991] | 1302 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1303 | int valid = 0;
|
---|
| 1304 |
|
---|
| 1305 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1306 | {
|
---|
| 1307 | if ((*it)->GetValid())
|
---|
| 1308 | ++ valid;
|
---|
| 1309 | }
|
---|
| 1310 |
|
---|
| 1311 | return valid;
|
---|
[569] | 1312 | }
|
---|
| 1313 |
|
---|
[577] | 1314 |
|
---|
| 1315 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1316 | {
|
---|
| 1317 | X3dParser parser;
|
---|
[503] | 1318 |
|
---|
[1004] | 1319 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1320 |
|
---|
[440] | 1321 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1322 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1323 |
|
---|
| 1324 | return success;
|
---|
| 1325 | }
|
---|
| 1326 |
|
---|
[485] | 1327 |
|
---|
[487] | 1328 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1329 | {
|
---|
[542] | 1330 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1331 | return true;
|
---|
| 1332 | }
|
---|
| 1333 |
|
---|
| 1334 |
|
---|
[557] | 1335 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1336 | {
|
---|
[610] | 1337 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1338 | }
|
---|
| 1339 |
|
---|
| 1340 |
|
---|
[490] | 1341 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1342 | {
|
---|
[569] | 1343 | if (!ViewCellsConstructed())
|
---|
[837] | 1344 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1345 | else
|
---|
| 1346 | {
|
---|
| 1347 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1348 | return false;
|
---|
| 1349 |
|
---|
| 1350 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1351 |
|
---|
| 1352 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1353 | return false;
|
---|
[569] | 1354 | }
|
---|
[837] | 1355 |
|
---|
[569] | 1356 | return true;
|
---|
[490] | 1357 | }
|
---|
| 1358 |
|
---|
[501] | 1359 |
|
---|
[563] | 1360 | float
|
---|
| 1361 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[574] | 1362 | const bool addRays,
|
---|
| 1363 | const bool storeViewCells
|
---|
[563] | 1364 | )
|
---|
[440] | 1365 | {
|
---|
[563] | 1366 | // view cells not yet constructed
|
---|
| 1367 | if (!ViewCellsConstructed())
|
---|
| 1368 | return 0.0f;
|
---|
[564] | 1369 |
|
---|
[563] | 1370 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 1371 |
|
---|
[563] | 1372 | float sum = 0.0f;
|
---|
[664] | 1373 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1374 | {
|
---|
| 1375 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
|
---|
| 1376 | //ComputeSampleContributions(*(*it), addRays);
|
---|
| 1377 | // sum += (*it)->mPvsContribution;
|
---|
[563] | 1378 | }
|
---|
[664] | 1379 |
|
---|
[563] | 1380 | return sum;
|
---|
[440] | 1381 | }
|
---|
| 1382 |
|
---|
[485] | 1383 |
|
---|
[479] | 1384 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1385 | {
|
---|
[660] | 1386 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1387 |
|
---|
| 1388 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1389 |
|
---|
| 1390 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1391 | {
|
---|
[660] | 1392 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1393 | }
|
---|
[479] | 1394 | }
|
---|
| 1395 |
|
---|
[485] | 1396 |
|
---|
[580] | 1397 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1398 | float &expectedRenderCost,
|
---|
[580] | 1399 | float &deviation,
|
---|
| 1400 | float &variance,
|
---|
| 1401 | int &totalPvs,
|
---|
| 1402 | float &avgRenderCost)
|
---|
[579] | 1403 | {
|
---|
| 1404 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1405 |
|
---|
| 1406 | //-- compute expected value
|
---|
| 1407 | totalRenderCost = 0;
|
---|
[580] | 1408 | totalPvs = 0;
|
---|
[579] | 1409 |
|
---|
| 1410 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1411 | {
|
---|
| 1412 | ViewCell *vc = *it;
|
---|
| 1413 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1414 | totalPvs += (int)vc->GetPvs().GetSize();
|
---|
[579] | 1415 | }
|
---|
| 1416 |
|
---|
[580] | 1417 | // normalize with view space box
|
---|
| 1418 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1419 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1420 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1421 |
|
---|
| 1422 |
|
---|
[580] | 1423 | //-- compute standard defiation
|
---|
[579] | 1424 | variance = 0;
|
---|
[580] | 1425 | deviation = 0;
|
---|
[579] | 1426 |
|
---|
| 1427 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1428 | {
|
---|
| 1429 | ViewCell *vc = *it;
|
---|
| 1430 |
|
---|
| 1431 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1432 | float dev;
|
---|
[579] | 1433 |
|
---|
[580] | 1434 | if (1)
|
---|
| 1435 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
| 1436 | else
|
---|
| 1437 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1438 |
|
---|
[580] | 1439 | deviation += dev;
|
---|
| 1440 | variance += dev * dev;
|
---|
[579] | 1441 | }
|
---|
[580] | 1442 |
|
---|
[579] | 1443 | variance /= (float)mViewCells.size();
|
---|
[580] | 1444 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1445 | }
|
---|
| 1446 |
|
---|
| 1447 |
|
---|
| 1448 |
|
---|
[440] | 1449 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1450 | {
|
---|
| 1451 | mViewCells.push_back(viewCell);
|
---|
| 1452 | }
|
---|
| 1453 |
|
---|
[485] | 1454 |
|
---|
[478] | 1455 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1456 | {
|
---|
| 1457 | return viewCell->GetArea();
|
---|
| 1458 | }
|
---|
| 1459 |
|
---|
| 1460 |
|
---|
| 1461 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1462 | {
|
---|
| 1463 | return viewCell->GetVolume();
|
---|
| 1464 | }
|
---|
| 1465 |
|
---|
[485] | 1466 |
|
---|
[1002] | 1467 | void ViewCellsManager::DeriveViewCellsFromObjects(const ObjectContainer &objects,
|
---|
| 1468 | ViewCellContainer &viewCells,
|
---|
| 1469 | const int maxViewCells) const
|
---|
[440] | 1470 | {
|
---|
| 1471 | // maximal max viewcells
|
---|
[503] | 1472 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1473 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1474 |
|
---|
| 1475 | for (int i = 0; i < limit; ++ i)
|
---|
| 1476 | {
|
---|
| 1477 | Intersectable *object = objects[i];
|
---|
[503] | 1478 |
|
---|
[440] | 1479 | // extract the mesh instances
|
---|
| 1480 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1481 | {
|
---|
| 1482 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1483 |
|
---|
| 1484 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1485 | viewCells.push_back(viewCell);
|
---|
| 1486 | }
|
---|
[1001] | 1487 | else if (object->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
| 1488 | {
|
---|
| 1489 | TransformedMeshInstance *mi = dynamic_cast<TransformedMeshInstance *>(object);
|
---|
| 1490 |
|
---|
| 1491 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1002] | 1492 |
|
---|
[1001] | 1493 | // transform mesh
|
---|
[1002] | 1494 | mi->GetTransformedMesh(*mesh);
|
---|
[1001] | 1495 |
|
---|
| 1496 | // create bb + kd tree
|
---|
| 1497 | mesh->Preprocess();
|
---|
| 1498 |
|
---|
| 1499 | ViewCell *viewCell = GenerateViewCell(mi->GetMesh());
|
---|
| 1500 | viewCells.push_back(viewCell);
|
---|
| 1501 |
|
---|
| 1502 | break;
|
---|
| 1503 | }
|
---|
[440] | 1504 | }
|
---|
| 1505 | }
|
---|
| 1506 |
|
---|
[485] | 1507 |
|
---|
[503] | 1508 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1509 | const float height) const
|
---|
| 1510 | {
|
---|
| 1511 | // one mesh per view cell
|
---|
[1001] | 1512 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1513 |
|
---|
[440] | 1514 | //-- construct prism
|
---|
| 1515 |
|
---|
[503] | 1516 | // bottom
|
---|
[440] | 1517 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1518 | // top
|
---|
| 1519 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1520 | // sides
|
---|
| 1521 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1522 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1523 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1524 |
|
---|
| 1525 | //--- extrude new vertices for top of prism
|
---|
| 1526 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1527 |
|
---|
[503] | 1528 | Triangle3 topTri;
|
---|
[440] | 1529 |
|
---|
| 1530 | // add base vertices and calculate top vertices
|
---|
| 1531 | for (int i = 0; i < 3; ++ i)
|
---|
| 1532 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1533 |
|
---|
| 1534 | // add top vertices
|
---|
[440] | 1535 | for (int i = 0; i < 3; ++ i)
|
---|
| 1536 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1537 |
|
---|
[440] | 1538 | mesh->Preprocess();
|
---|
| 1539 |
|
---|
| 1540 | return GenerateViewCell(mesh);
|
---|
| 1541 | }
|
---|
| 1542 |
|
---|
[485] | 1543 |
|
---|
[551] | 1544 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1545 | {
|
---|
| 1546 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1547 |
|
---|
| 1548 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1549 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1550 | {
|
---|
| 1551 | Finalize(*it, createMesh);
|
---|
| 1552 | }
|
---|
[555] | 1553 |
|
---|
| 1554 | mTotalAreaValid = false;
|
---|
[551] | 1555 | }
|
---|
| 1556 |
|
---|
| 1557 |
|
---|
| 1558 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1559 | {
|
---|
| 1560 | // implemented in subclasses
|
---|
| 1561 | }
|
---|
| 1562 |
|
---|
[1001] | 1563 |
|
---|
[752] | 1564 | // fast way of merging 2 view cells
|
---|
[582] | 1565 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1566 | {
|
---|
[580] | 1567 | // generate parent view cell
|
---|
[752] | 1568 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1569 |
|
---|
[752] | 1570 | vc->GetPvs().Clear();
|
---|
[610] | 1571 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1572 |
|
---|
| 1573 | // merge pvs of right cell
|
---|
[610] | 1574 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1575 |
|
---|
[462] | 1576 | //-- merge ray sets
|
---|
[564] | 1577 | if (0)
|
---|
| 1578 | {
|
---|
[582] | 1579 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1580 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1581 |
|
---|
[582] | 1582 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1583 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1584 | vc->mPiercingRays.begin());
|
---|
| 1585 | }
|
---|
[440] | 1586 |
|
---|
[710] | 1587 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1588 | vc->mChildren.push_back(left);
|
---|
| 1589 | vc->mChildren.push_back(right);
|
---|
| 1590 |
|
---|
[752] | 1591 | // update pvs size
|
---|
| 1592 | vc->mPvsSize = vc->GetPvs().GetSize();
|
---|
| 1593 | vc->mPvsSizeValid = true;
|
---|
| 1594 |
|
---|
[440] | 1595 | return vc;
|
---|
| 1596 | }
|
---|
| 1597 |
|
---|
[485] | 1598 |
|
---|
[582] | 1599 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1600 | {
|
---|
[752] | 1601 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1602 |
|
---|
| 1603 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1604 |
|
---|
| 1605 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1606 | {
|
---|
| 1607 | // merge pvs
|
---|
[610] | 1608 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1609 | vc->mChildren.push_back(*it);
|
---|
[582] | 1610 | }
|
---|
| 1611 |
|
---|
| 1612 | return vc;
|
---|
| 1613 | }
|
---|
| 1614 |
|
---|
| 1615 |
|
---|
[480] | 1616 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1617 | {
|
---|
| 1618 | mRenderer = renderer;
|
---|
| 1619 | }
|
---|
[441] | 1620 |
|
---|
[485] | 1621 |
|
---|
[580] | 1622 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1623 | {
|
---|
[580] | 1624 | return mViewCellsTree;
|
---|
[440] | 1625 | }
|
---|
| 1626 |
|
---|
| 1627 |
|
---|
| 1628 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1629 | {
|
---|
[444] | 1630 | mVisualizationSamples = visSamples;
|
---|
[440] | 1631 | }
|
---|
| 1632 |
|
---|
[485] | 1633 |
|
---|
[440] | 1634 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1635 | {
|
---|
| 1636 | mConstructionSamples = constructionSamples;
|
---|
| 1637 | }
|
---|
| 1638 |
|
---|
[485] | 1639 |
|
---|
[574] | 1640 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1641 | {
|
---|
| 1642 | mInitialSamples = initialSamples;
|
---|
| 1643 | }
|
---|
| 1644 |
|
---|
| 1645 |
|
---|
[440] | 1646 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1647 | {
|
---|
| 1648 | mPostProcessSamples = postProcessSamples;
|
---|
| 1649 | }
|
---|
| 1650 |
|
---|
[485] | 1651 |
|
---|
[440] | 1652 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1653 | {
|
---|
| 1654 | return mVisualizationSamples;
|
---|
| 1655 | }
|
---|
| 1656 |
|
---|
[485] | 1657 |
|
---|
[440] | 1658 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1659 | {
|
---|
| 1660 | return mConstructionSamples;
|
---|
| 1661 | }
|
---|
| 1662 |
|
---|
[485] | 1663 |
|
---|
[440] | 1664 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1665 | {
|
---|
| 1666 | return mPostProcessSamples;
|
---|
| 1667 | }
|
---|
| 1668 |
|
---|
[485] | 1669 |
|
---|
[719] | 1670 | void ViewCellsManager::UpdatePvs()
|
---|
| 1671 | {
|
---|
[720] | 1672 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1673 | return;
|
---|
| 1674 |
|
---|
| 1675 | mViewCellPvsIsUpdated = true;
|
---|
| 1676 |
|
---|
| 1677 | ViewCellContainer leaves;
|
---|
| 1678 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1679 |
|
---|
| 1680 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1681 |
|
---|
| 1682 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1683 | {
|
---|
| 1684 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1685 | }
|
---|
| 1686 | }
|
---|
| 1687 |
|
---|
| 1688 |
|
---|
[485] | 1689 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1690 | {
|
---|
[1121] | 1691 | // update pvs of view cells tree if necessary
|
---|
| 1692 | UpdatePvs();
|
---|
| 1693 |
|
---|
| 1694 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1695 |
|
---|
| 1696 | stat.viewcells = 0;
|
---|
| 1697 | stat.minPvs = 100000000;
|
---|
| 1698 | stat.maxPvs = 0;
|
---|
| 1699 | stat.avgPvs = 0.0f;
|
---|
| 1700 |
|
---|
| 1701 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1702 | {
|
---|
[1121] | 1703 | ViewCell *viewcell = *it;
|
---|
| 1704 |
|
---|
| 1705 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell, mCountKdPvs);
|
---|
| 1706 |
|
---|
| 1707 | if (pvsSize < stat.minPvs)
|
---|
| 1708 | stat.minPvs = pvsSize;
|
---|
| 1709 | if (pvsSize > stat.maxPvs)
|
---|
| 1710 | stat.maxPvs = pvsSize;
|
---|
| 1711 |
|
---|
| 1712 | stat.avgPvs += pvsSize;
|
---|
| 1713 |
|
---|
| 1714 | ++ stat.viewcells;
|
---|
[719] | 1715 | }
|
---|
[1121] | 1716 |
|
---|
| 1717 | if (stat.viewcells)
|
---|
| 1718 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1719 | }
|
---|
| 1720 |
|
---|
[485] | 1721 |
|
---|
[480] | 1722 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1723 | {
|
---|
| 1724 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1725 | PvsStatistics pvsStat;
|
---|
| 1726 | GetPvsStatistics(pvsStat);
|
---|
| 1727 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1728 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1729 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1730 | }
|
---|
| 1731 |
|
---|
[485] | 1732 |
|
---|
[532] | 1733 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1734 | {
|
---|
| 1735 | return 0;
|
---|
| 1736 | }
|
---|
| 1737 |
|
---|
[547] | 1738 |
|
---|
[468] | 1739 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1740 | {
|
---|
| 1741 | return mViewCells;
|
---|
| 1742 | }
|
---|
| 1743 |
|
---|
[485] | 1744 |
|
---|
[487] | 1745 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1746 | {
|
---|
[542] | 1747 | mViewSpaceBox = box;
|
---|
[1074] | 1748 |
|
---|
[1027] | 1749 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1750 | CreateClipPlane();
|
---|
[1027] | 1751 | // the total area of the view space has changed
|
---|
[577] | 1752 | mTotalAreaValid = false;
|
---|
[487] | 1753 | }
|
---|
| 1754 |
|
---|
| 1755 |
|
---|
[660] | 1756 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1757 | {
|
---|
| 1758 | int axis = 0;
|
---|
[667] | 1759 | float pos;
|
---|
[591] | 1760 |
|
---|
[1004] | 1761 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1762 |
|
---|
[667] | 1763 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1764 |
|
---|
[660] | 1765 | if (mUseClipPlaneForViz)
|
---|
[1004] | 1766 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1767 |
|
---|
[1047] | 1768 | mClipPlane = AxisAlignedPlane(axis, point[axis]);
|
---|
[591] | 1769 | }
|
---|
| 1770 |
|
---|
| 1771 |
|
---|
[519] | 1772 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1773 | {
|
---|
[542] | 1774 | return mViewSpaceBox;
|
---|
[519] | 1775 | }
|
---|
| 1776 |
|
---|
| 1777 |
|
---|
[480] | 1778 | void ViewCellsManager::ResetViewCells()
|
---|
| 1779 | {
|
---|
[720] | 1780 | // recollect view cells
|
---|
[480] | 1781 | mViewCells.clear();
|
---|
| 1782 | CollectViewCells();
|
---|
[590] | 1783 |
|
---|
[720] | 1784 |
|
---|
| 1785 | // stats are computed once more
|
---|
[660] | 1786 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1787 | EvaluateViewCellsStats();
|
---|
[590] | 1788 |
|
---|
[520] | 1789 | // has to be recomputed
|
---|
[480] | 1790 | mTotalAreaValid = false;
|
---|
| 1791 | }
|
---|
| 1792 |
|
---|
[485] | 1793 |
|
---|
[547] | 1794 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1795 | {
|
---|
| 1796 | return mMaxPvsSize;
|
---|
| 1797 | }
|
---|
| 1798 |
|
---|
[590] | 1799 |
|
---|
[563] | 1800 | void
|
---|
| 1801 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1802 | {
|
---|
| 1803 | if (!ViewCellsConstructed())
|
---|
| 1804 | return;
|
---|
[564] | 1805 |
|
---|
[563] | 1806 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1807 |
|
---|
[563] | 1808 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1809 | AddSampleContributions(*(*it));
|
---|
| 1810 | }
|
---|
| 1811 | }
|
---|
[547] | 1812 |
|
---|
[581] | 1813 |
|
---|
[562] | 1814 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1815 | {
|
---|
| 1816 | return mMinPvsSize;
|
---|
| 1817 | }
|
---|
| 1818 |
|
---|
| 1819 |
|
---|
| 1820 |
|
---|
[561] | 1821 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1822 | {
|
---|
| 1823 | return mMaxPvsRatio;
|
---|
| 1824 | }
|
---|
| 1825 |
|
---|
| 1826 |
|
---|
[563] | 1827 | void
|
---|
| 1828 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1829 | {
|
---|
[563] | 1830 | // assumes viewcells have been stored...
|
---|
| 1831 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1832 | ViewCellContainer::const_iterator it;
|
---|
| 1833 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1834 | ViewCell *viewcell = *it;
|
---|
[569] | 1835 | if (viewcell->GetValid()) {
|
---|
| 1836 | // if ray not outside of view space
|
---|
| 1837 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1838 | }
|
---|
[563] | 1839 | }
|
---|
| 1840 | }
|
---|
[503] | 1841 |
|
---|
[574] | 1842 |
|
---|
[570] | 1843 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
[574] | 1844 | const bool addRays,
|
---|
| 1845 | const bool storeViewCells)
|
---|
[563] | 1846 | {
|
---|
[570] | 1847 | ViewCellContainer viewcells;
|
---|
[564] | 1848 |
|
---|
[570] | 1849 | ray.mPvsContribution = 0;
|
---|
| 1850 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1851 |
|
---|
[570] | 1852 | static Ray hray;
|
---|
[564] | 1853 | hray.Init(ray);
|
---|
| 1854 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1855 | //Ray hray(ray);
|
---|
| 1856 |
|
---|
| 1857 | float tmin = 0, tmax = 1.0;
|
---|
| 1858 |
|
---|
| 1859 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1860 | return 0;
|
---|
[564] | 1861 |
|
---|
| 1862 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1863 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1864 |
|
---|
[1006] | 1865 | // traverse the view space subdivision
|
---|
[564] | 1866 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1867 |
|
---|
[574] | 1868 | //const bool storeViewcells = !addRays;
|
---|
[1006] | 1869 | //return 0;
|
---|
[574] | 1870 | if (storeViewCells)
|
---|
[570] | 1871 | {
|
---|
[1006] | 1872 | // copy viewcells memory efficiently
|
---|
[570] | 1873 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1874 | ray.mViewCells = viewcells;
|
---|
| 1875 | }
|
---|
[564] | 1876 |
|
---|
[570] | 1877 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1878 |
|
---|
[664] | 1879 | for (; it != viewcells.end(); ++ it)
|
---|
| 1880 | {
|
---|
| 1881 | ViewCell *viewcell = *it;
|
---|
[694] | 1882 |
|
---|
[708] | 1883 | if (viewcell->GetValid())
|
---|
[664] | 1884 | {
|
---|
| 1885 | // if ray not outside of view space
|
---|
| 1886 | float contribution;
|
---|
[1112] | 1887 | if (ray.mTerminationObject) {
|
---|
| 1888 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 1889 | ray.mPdf,
|
---|
| 1890 | contribution))
|
---|
[664] | 1891 | ++ ray.mPvsContribution;
|
---|
[1112] | 1892 | ray.mRelativePvsContribution += contribution;
|
---|
[664] | 1893 | }
|
---|
[840] | 1894 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1895 | // made in one direction!!!
|
---|
| 1896 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
| 1897 | #if 0
|
---|
[666] | 1898 | if (ray.mOriginObject &&
|
---|
| 1899 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1900 | ray.mPdf,
|
---|
| 1901 | contribution))
|
---|
| 1902 | {
|
---|
| 1903 | ++ ray.mPvsContribution;
|
---|
| 1904 | ray.mRelativePvsContribution += contribution;
|
---|
| 1905 | }
|
---|
[718] | 1906 | #endif
|
---|
[664] | 1907 | }
|
---|
[569] | 1908 | }
|
---|
[564] | 1909 |
|
---|
[664] | 1910 |
|
---|
| 1911 | if (addRays)
|
---|
| 1912 | {
|
---|
| 1913 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1914 | {
|
---|
| 1915 | ViewCell *viewcell = *it;
|
---|
| 1916 |
|
---|
[706] | 1917 | if (viewcell->GetValid())
|
---|
[664] | 1918 | {
|
---|
| 1919 | // if ray not outside of view space
|
---|
[666] | 1920 | if (ray.mTerminationObject)
|
---|
| 1921 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
[718] | 1922 |
|
---|
| 1923 | #if 0
|
---|
[666] | 1924 | if (ray.mOriginObject)
|
---|
| 1925 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[718] | 1926 | #endif
|
---|
[664] | 1927 | }
|
---|
| 1928 | }
|
---|
[563] | 1929 | }
|
---|
[570] | 1930 |
|
---|
| 1931 | return ray.mRelativePvsContribution;
|
---|
[468] | 1932 | }
|
---|
| 1933 |
|
---|
| 1934 |
|
---|
[469] | 1935 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1936 | const int maxSize,
|
---|
[503] | 1937 | VssRayContainer &usedRays,
|
---|
[485] | 1938 | VssRayContainer *savedRays) const
|
---|
[469] | 1939 | {
|
---|
[485] | 1940 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1941 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1942 |
|
---|
[485] | 1943 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1944 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1945 | {
|
---|
[473] | 1946 | if (Random(1.0f) < prop)
|
---|
[485] | 1947 | usedRays.push_back(*it);
|
---|
| 1948 | else if (savedRays)
|
---|
| 1949 | savedRays->push_back(*it);
|
---|
[469] | 1950 | }
|
---|
| 1951 | }
|
---|
| 1952 |
|
---|
[477] | 1953 |
|
---|
[728] | 1954 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1955 | {
|
---|
[1121] | 1956 | return mViewCellsTree->GetPvsSize(viewCell, mCountKdPvs);
|
---|
[605] | 1957 | }
|
---|
| 1958 |
|
---|
| 1959 |
|
---|
[477] | 1960 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1961 | {
|
---|
| 1962 | // if already computed
|
---|
| 1963 | if (mTotalAreaValid)
|
---|
[728] | 1964 | {
|
---|
[470] | 1965 | return mTotalArea;
|
---|
[728] | 1966 | }
|
---|
[470] | 1967 |
|
---|
| 1968 | mTotalArea = 0;
|
---|
| 1969 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1970 |
|
---|
| 1971 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1972 | {
|
---|
| 1973 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1974 | mTotalArea += GetArea(*it);
|
---|
[480] | 1975 | }
|
---|
| 1976 |
|
---|
[470] | 1977 | mTotalAreaValid = true;
|
---|
| 1978 |
|
---|
| 1979 | return mTotalArea;
|
---|
| 1980 | }
|
---|
| 1981 |
|
---|
[482] | 1982 |
|
---|
[475] | 1983 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1984 | {
|
---|
[660] | 1985 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1986 | }
|
---|
| 1987 |
|
---|
[477] | 1988 |
|
---|
[508] | 1989 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 1990 | {
|
---|
[651] | 1991 | if (ViewCellsTreeConstructed())
|
---|
| 1992 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 1993 | else
|
---|
| 1994 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 1995 | mViewCells[i]->SetId(i);
|
---|
[508] | 1996 | }
|
---|
| 1997 |
|
---|
| 1998 |
|
---|
| 1999 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 2000 | {
|
---|
[482] | 2001 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2002 |
|
---|
| 2003 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2004 | {
|
---|
[574] | 2005 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2006 | {
|
---|
[801] | 2007 | ExportColor(exporter, *it);
|
---|
| 2008 |
|
---|
[591] | 2009 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 2010 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 2011 | }
|
---|
[482] | 2012 | }
|
---|
| 2013 | }
|
---|
| 2014 |
|
---|
| 2015 |
|
---|
[517] | 2016 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2017 | {
|
---|
| 2018 | // convert to meshes
|
---|
| 2019 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2020 |
|
---|
| 2021 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2022 | {
|
---|
[517] | 2023 | if (!(*it)->GetMesh())
|
---|
[1001] | 2024 | {
|
---|
[517] | 2025 | CreateMesh(*it);
|
---|
[1001] | 2026 | }
|
---|
[503] | 2027 | }
|
---|
| 2028 | }
|
---|
| 2029 |
|
---|
[508] | 2030 |
|
---|
[944] | 2031 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2032 | const bool exportPvs,
|
---|
| 2033 | const ObjectContainer &objects)
|
---|
[564] | 2034 | {
|
---|
[508] | 2035 | return false;
|
---|
| 2036 | }
|
---|
| 2037 |
|
---|
| 2038 |
|
---|
[610] | 2039 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2040 | {
|
---|
[610] | 2041 | mNumActiveViewCells = n;
|
---|
| 2042 | mViewCells.clear();
|
---|
| 2043 | CollectViewCells();
|
---|
| 2044 | }
|
---|
[508] | 2045 |
|
---|
| 2046 |
|
---|
[660] | 2047 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2048 | {
|
---|
[882] | 2049 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2050 | // active view cells
|
---|
[660] | 2051 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2052 |
|
---|
[660] | 2053 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2054 | {
|
---|
[881] | 2055 | ViewCellContainer leaves;
|
---|
| 2056 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2057 |
|
---|
| 2058 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2059 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2060 | {
|
---|
| 2061 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2062 | }
|
---|
[660] | 2063 | }
|
---|
| 2064 | }
|
---|
[508] | 2065 |
|
---|
[840] | 2066 |
|
---|
| 2067 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2068 | {
|
---|
| 2069 | return mMaxFilterSize;
|
---|
| 2070 | }
|
---|
| 2071 |
|
---|
[1001] | 2072 |
|
---|
[840] | 2073 | static const bool USE_ASCII = true;
|
---|
| 2074 |
|
---|
[1001] | 2075 |
|
---|
[840] | 2076 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2077 | const ObjectContainer &objects) const
|
---|
| 2078 | {
|
---|
| 2079 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2080 |
|
---|
| 2081 | if (USE_ASCII)
|
---|
| 2082 | {
|
---|
| 2083 | ofstream boxesOut(filename.c_str());
|
---|
| 2084 | if (!boxesOut.is_open())
|
---|
| 2085 | return false;
|
---|
| 2086 |
|
---|
| 2087 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2088 | {
|
---|
| 2089 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2090 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2091 |
|
---|
| 2092 | boxesOut << mi->GetId() << " "
|
---|
| 2093 | << box.Min().x << " "
|
---|
| 2094 | << box.Min().y << " "
|
---|
| 2095 | << box.Min().z << " "
|
---|
| 2096 | << box.Max().x << " "
|
---|
| 2097 | << box.Max().y << " "
|
---|
| 2098 | << box.Max().z << endl;
|
---|
| 2099 | }
|
---|
| 2100 |
|
---|
| 2101 | boxesOut.close();
|
---|
| 2102 | }
|
---|
| 2103 | else
|
---|
| 2104 | {
|
---|
| 2105 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2106 |
|
---|
| 2107 | if (!boxesOut.is_open())
|
---|
| 2108 | return false;
|
---|
| 2109 |
|
---|
| 2110 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2111 | {
|
---|
| 2112 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2113 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2114 | Vector3 bmin = box.Min();
|
---|
| 2115 | Vector3 bmax = box.Max();
|
---|
[850] | 2116 | int id = mi->GetId();
|
---|
[840] | 2117 |
|
---|
[850] | 2118 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2119 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2120 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2121 | }
|
---|
| 2122 |
|
---|
| 2123 | boxesOut.close();
|
---|
| 2124 | }
|
---|
| 2125 |
|
---|
| 2126 | return true;
|
---|
| 2127 | }
|
---|
| 2128 |
|
---|
| 2129 |
|
---|
[850] | 2130 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2131 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2132 | {
|
---|
[850] | 2133 | Vector3 bmin, bmax;
|
---|
| 2134 | int id;
|
---|
[840] | 2135 |
|
---|
[850] | 2136 | if (USE_ASCII)
|
---|
[840] | 2137 | {
|
---|
[850] | 2138 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2139 |
|
---|
[850] | 2140 | if (!boxesIn.is_open())
|
---|
[840] | 2141 | {
|
---|
[850] | 2142 | cout << "failed to open file " << filename << endl;
|
---|
| 2143 | return false;
|
---|
[840] | 2144 | }
|
---|
[850] | 2145 |
|
---|
| 2146 | string buf;
|
---|
| 2147 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2148 | {
|
---|
[850] | 2149 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2150 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2151 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2152 |
|
---|
| 2153 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2154 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2155 | // HACK: set bounding box to new box
|
---|
| 2156 | //mi->mBox = box;
|
---|
| 2157 |
|
---|
| 2158 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2159 | }
|
---|
| 2160 |
|
---|
[850] | 2161 | boxesIn.close();
|
---|
[840] | 2162 | }
|
---|
[850] | 2163 | else
|
---|
[840] | 2164 | {
|
---|
[850] | 2165 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2166 |
|
---|
[850] | 2167 | if (!boxesIn.is_open())
|
---|
| 2168 | return false;
|
---|
| 2169 |
|
---|
| 2170 | while (1)
|
---|
[840] | 2171 | {
|
---|
[850] | 2172 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2173 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2174 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2175 |
|
---|
| 2176 | if (boxesIn.eof())
|
---|
| 2177 | break;
|
---|
| 2178 |
|
---|
| 2179 |
|
---|
| 2180 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2181 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2182 |
|
---|
| 2183 | // HACK: set bounding box to new box
|
---|
| 2184 | //mi->mBox = box;
|
---|
| 2185 | //boxes.push_back(mi);
|
---|
| 2186 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2187 | }
|
---|
| 2188 |
|
---|
[850] | 2189 | boxesIn.close();
|
---|
[840] | 2190 | }
|
---|
| 2191 |
|
---|
| 2192 | return true;
|
---|
[850] | 2193 | }
|
---|
[840] | 2194 |
|
---|
[931] | 2195 |
|
---|
| 2196 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2197 | {
|
---|
| 2198 | return mFilterWidth;
|
---|
| 2199 | }
|
---|
| 2200 |
|
---|
| 2201 |
|
---|
| 2202 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2203 | {
|
---|
| 2204 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2205 | }
|
---|
| 2206 |
|
---|
| 2207 |
|
---|
[1006] | 2208 | void ViewCellsManager::SetScalarPvsSize(ViewCell *vc,
|
---|
| 2209 | const int pvsSize) const
|
---|
[1002] | 2210 | {
|
---|
| 2211 | vc->mPvsSize = pvsSize;
|
---|
| 2212 | vc->mPvsSizeValid = true;
|
---|
| 2213 | }
|
---|
| 2214 |
|
---|
| 2215 |
|
---|
[1021] | 2216 |
|
---|
| 2217 |
|
---|
| 2218 | void
|
---|
| 2219 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2220 | KdTree *kdTree,
|
---|
| 2221 | const float viewSpaceFilterSize,
|
---|
| 2222 | const float spatialFilterSize,
|
---|
| 2223 | ObjectPvs &pvs
|
---|
| 2224 | )
|
---|
| 2225 | {
|
---|
| 2226 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2227 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2228 | // in the pvs
|
---|
| 2229 |
|
---|
| 2230 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2231 | // and compute the pvs union
|
---|
| 2232 |
|
---|
| 2233 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2234 | // Vector3 center = m->mBox.Center();
|
---|
| 2235 |
|
---|
| 2236 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2237 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 2238 | if (!ViewCellsConstructed())
|
---|
| 2239 | return;
|
---|
| 2240 |
|
---|
| 2241 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
| 2242 |
|
---|
| 2243 | bool usePrVS = false;
|
---|
| 2244 |
|
---|
| 2245 | if (!usePrVS) {
|
---|
| 2246 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2247 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 2248 |
|
---|
| 2249 | ViewCellContainer viewCells;
|
---|
| 2250 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2251 |
|
---|
| 2252 | // cout<<"box="<<box<<endl;
|
---|
| 2253 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2254 |
|
---|
| 2255 | int i;
|
---|
| 2256 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2257 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2258 | pvs.Merge((*it)->GetPvs());
|
---|
| 2259 | }
|
---|
| 2260 | } else {
|
---|
| 2261 | PrVs prvs;
|
---|
| 2262 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2263 |
|
---|
| 2264 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2265 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2266 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2267 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2268 | }
|
---|
| 2269 | } else
|
---|
| 2270 | pvs = viewCell->GetPvs();
|
---|
| 2271 |
|
---|
| 2272 | if (spatialFilterSize >=0.0f)
|
---|
| 2273 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2274 |
|
---|
| 2275 | }
|
---|
| 2276 |
|
---|
| 2277 |
|
---|
| 2278 |
|
---|
| 2279 | void
|
---|
| 2280 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2281 | const float relViewSpaceFilterSize,
|
---|
| 2282 | const float relSpatialFilterSize
|
---|
| 2283 | )
|
---|
| 2284 | {
|
---|
| 2285 |
|
---|
| 2286 | if (!ViewCellsConstructed())
|
---|
| 2287 | return;
|
---|
| 2288 |
|
---|
| 2289 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2290 |
|
---|
| 2291 | ObjectPvs *newPvs;
|
---|
| 2292 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 2293 |
|
---|
| 2294 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2295 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 2296 |
|
---|
| 2297 | int i;
|
---|
| 2298 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2299 | ApplyFilter(*it,
|
---|
| 2300 | kdTree,
|
---|
| 2301 | viewSpaceFilterSize,
|
---|
| 2302 | spatialFilterSize,
|
---|
| 2303 | newPvs[i]
|
---|
| 2304 | );
|
---|
| 2305 | }
|
---|
| 2306 |
|
---|
| 2307 | // now replace all pvss
|
---|
| 2308 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2309 |
|
---|
| 2310 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2311 | pvs.Clear();
|
---|
| 2312 | pvs = newPvs[i];
|
---|
| 2313 | newPvs[i].Clear();
|
---|
| 2314 | }
|
---|
| 2315 |
|
---|
| 2316 | delete [] newPvs;
|
---|
| 2317 | }
|
---|
| 2318 |
|
---|
| 2319 |
|
---|
| 2320 |
|
---|
| 2321 |
|
---|
| 2322 | void
|
---|
| 2323 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2324 | KdTree *kdTree,
|
---|
| 2325 | const float spatialFilterSize,
|
---|
| 2326 | ObjectPvs &pvs
|
---|
| 2327 | )
|
---|
| 2328 | {
|
---|
| 2329 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2330 | // extended boxes of visible objects
|
---|
| 2331 |
|
---|
| 2332 | Intersectable::NewMail();
|
---|
| 2333 |
|
---|
| 2334 | std::map<Intersectable *,
|
---|
| 2335 | PvsData<Intersectable *>,
|
---|
| 2336 | LtSample<Intersectable *> >::const_iterator oi;
|
---|
| 2337 |
|
---|
| 2338 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2339 | Intersectable *object = (*oi).first;
|
---|
| 2340 | object->Mail();
|
---|
| 2341 | }
|
---|
| 2342 |
|
---|
| 2343 | ObjectPvs nPvs;
|
---|
| 2344 | int nPvsSize=0;
|
---|
| 2345 | // now go through the pvs again
|
---|
| 2346 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2347 | Intersectable *object = (*oi).first;
|
---|
| 2348 |
|
---|
| 2349 | // Vector3 center = object->GetBox().Center();
|
---|
| 2350 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2351 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2352 |
|
---|
| 2353 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2354 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2355 |
|
---|
| 2356 | ObjectContainer objects;
|
---|
| 2357 |
|
---|
| 2358 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2359 | kdTree->CollectObjects(box,
|
---|
| 2360 | objects);
|
---|
| 2361 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2362 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2363 | for (; noi != objects.end(); ++noi) {
|
---|
| 2364 | Intersectable *o = *noi;
|
---|
| 2365 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2366 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2367 | nPvsSize++;
|
---|
| 2368 | }
|
---|
| 2369 | }
|
---|
| 2370 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2371 | pvs.Merge(nPvs);
|
---|
| 2372 | }
|
---|
| 2373 |
|
---|
| 2374 |
|
---|
| 2375 | void ViewCellsManager::ExportColor(Exporter *exporter, ViewCell *vc) const
|
---|
| 2376 | {
|
---|
| 2377 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2378 |
|
---|
| 2379 | float importance = 0;
|
---|
| 2380 | static Material m;
|
---|
| 2381 |
|
---|
| 2382 | switch (mColorCode)
|
---|
| 2383 | {
|
---|
| 2384 | case 0: // Random
|
---|
| 2385 | {
|
---|
| 2386 | if (vcValid)
|
---|
| 2387 | {
|
---|
| 2388 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2389 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2390 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2391 | }
|
---|
| 2392 | else
|
---|
| 2393 | {
|
---|
| 2394 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2395 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2396 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2397 | }
|
---|
| 2398 |
|
---|
| 2399 | exporter->SetForcedMaterial(m);
|
---|
| 2400 | return;
|
---|
| 2401 | }
|
---|
| 2402 |
|
---|
| 2403 | case 1: // pvs
|
---|
| 2404 | {
|
---|
| 2405 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2406 | {
|
---|
| 2407 | importance =
|
---|
| 2408 | (float)mViewCellsTree->GetPvsSize(vc, mCountKdPvs) /
|
---|
| 2409 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2410 | }
|
---|
[1021] | 2411 | }
|
---|
| 2412 | break;
|
---|
| 2413 | case 2: // merges
|
---|
| 2414 | {
|
---|
| 2415 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2416 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2417 | }
|
---|
| 2418 | break;
|
---|
| 2419 | #if 0
|
---|
| 2420 | case 3: // merge tree differene
|
---|
| 2421 | {
|
---|
| 2422 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2423 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2424 |
|
---|
| 2425 | }
|
---|
| 2426 | break;
|
---|
| 2427 | #endif
|
---|
| 2428 | default:
|
---|
| 2429 | break;
|
---|
| 2430 | }
|
---|
| 2431 |
|
---|
| 2432 | // special color code for invalid view cells
|
---|
| 2433 | m.mDiffuseColor.r = importance;
|
---|
| 2434 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2435 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2436 |
|
---|
| 2437 | //Debug << "importance: " << importance << endl;
|
---|
| 2438 | exporter->SetForcedMaterial(m);
|
---|
| 2439 | }
|
---|
| 2440 |
|
---|
| 2441 |
|
---|
[1022] | 2442 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2443 | vector<MergeCandidate> &candidates)
|
---|
| 2444 | {
|
---|
| 2445 | // implemented in subclasses
|
---|
| 2446 | }
|
---|
| 2447 |
|
---|
[1047] | 2448 |
|
---|
| 2449 |
|
---|
[440] | 2450 | /**********************************************************************/
|
---|
[931] | 2451 | /* BspViewCellsManager implementation */
|
---|
[440] | 2452 | /**********************************************************************/
|
---|
| 2453 |
|
---|
[482] | 2454 |
|
---|
[1004] | 2455 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 2456 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 2457 | {
|
---|
[1004] | 2458 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2459 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 2460 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 2461 | }
|
---|
| 2462 |
|
---|
[462] | 2463 |
|
---|
[440] | 2464 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2465 | {
|
---|
| 2466 | return mBspTree->GetRoot() != NULL;
|
---|
| 2467 | }
|
---|
| 2468 |
|
---|
[480] | 2469 |
|
---|
[440] | 2470 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2471 | {
|
---|
| 2472 | return new BspViewCell(mesh);
|
---|
| 2473 | }
|
---|
| 2474 |
|
---|
[480] | 2475 |
|
---|
[574] | 2476 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2477 | const VssRayContainer &rays)
|
---|
[440] | 2478 | {
|
---|
[441] | 2479 | // if view cells were already constructed
|
---|
[440] | 2480 | if (ViewCellsConstructed())
|
---|
| 2481 | return 0;
|
---|
| 2482 |
|
---|
| 2483 | int sampleContributions = 0;
|
---|
[503] | 2484 |
|
---|
[469] | 2485 | // construct view cells using the collected samples
|
---|
| 2486 | RayContainer constructionRays;
|
---|
| 2487 | VssRayContainer savedRays;
|
---|
[440] | 2488 |
|
---|
[574] | 2489 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 2490 |
|
---|
[469] | 2491 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2492 |
|
---|
[473] | 2493 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 2494 |
|
---|
[469] | 2495 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2496 | {
|
---|
[473] | 2497 | if (Random(1.0f) < prop)
|
---|
[469] | 2498 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2499 | else
|
---|
| 2500 | savedRays.push_back(*it);
|
---|
| 2501 | }
|
---|
[440] | 2502 |
|
---|
[503] | 2503 | if (mViewCells.empty())
|
---|
| 2504 | {
|
---|
| 2505 | // no view cells loaded
|
---|
[587] | 2506 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2507 | // collect final view cells
|
---|
| 2508 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2509 | }
|
---|
[469] | 2510 | else
|
---|
| 2511 | {
|
---|
| 2512 | mBspTree->Construct(mViewCells);
|
---|
| 2513 | }
|
---|
| 2514 |
|
---|
| 2515 | // destroy rays created only for construction
|
---|
| 2516 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2517 |
|
---|
[440] | 2518 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 2519 |
|
---|
| 2520 | //EvaluateViewCellsStats();
|
---|
[660] | 2521 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2522 |
|
---|
[469] | 2523 | // recast rest of the rays
|
---|
[649] | 2524 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2525 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2526 |
|
---|
[719] | 2527 | // real meshes are contructed at this stage
|
---|
| 2528 | if (0)
|
---|
| 2529 | {
|
---|
| 2530 | cout << "finalizing view cells ... ";
|
---|
| 2531 | FinalizeViewCells(true);
|
---|
| 2532 | cout << "finished" << endl;
|
---|
| 2533 | }
|
---|
| 2534 |
|
---|
[440] | 2535 | return sampleContributions;
|
---|
| 2536 | }
|
---|
| 2537 |
|
---|
[503] | 2538 |
|
---|
[480] | 2539 | void BspViewCellsManager::CollectViewCells()
|
---|
| 2540 | {
|
---|
[587] | 2541 | // view cells tree constructed
|
---|
| 2542 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 2543 | {
|
---|
[587] | 2544 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2545 | }
|
---|
| 2546 | else
|
---|
| 2547 | {
|
---|
| 2548 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 2549 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 2550 | mNumActiveViewCells);
|
---|
[587] | 2551 | }
|
---|
[480] | 2552 | }
|
---|
[468] | 2553 |
|
---|
[503] | 2554 |
|
---|
[471] | 2555 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2556 | {
|
---|
[471] | 2557 | // compute view cell area as subsititute for probability
|
---|
[591] | 2558 | if (1)
|
---|
| 2559 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2560 | else
|
---|
| 2561 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2562 | }
|
---|
[440] | 2563 |
|
---|
[503] | 2564 |
|
---|
[440] | 2565 |
|
---|
[468] | 2566 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2567 | const Vector3 &termination,
|
---|
| 2568 | ViewCellContainer &viewcells)
|
---|
[440] | 2569 | {
|
---|
[468] | 2570 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2571 | }
|
---|
| 2572 |
|
---|
| 2573 |
|
---|
[503] | 2574 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2575 | const VssRayContainer &rays)
|
---|
| 2576 | {
|
---|
[469] | 2577 | if (!ViewCellsConstructed())
|
---|
[441] | 2578 | {
|
---|
| 2579 | Debug << "view cells not constructed" << endl;
|
---|
| 2580 | return 0;
|
---|
| 2581 | }
|
---|
[590] | 2582 |
|
---|
| 2583 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 2584 | if (mViewCellsFinished)
|
---|
| 2585 | {
|
---|
| 2586 | FinalizeViewCells(true);
|
---|
| 2587 | EvaluateViewCellsStats();
|
---|
| 2588 |
|
---|
| 2589 | return 0;
|
---|
| 2590 | }
|
---|
| 2591 |
|
---|
[440] | 2592 | //-- post processing of bsp view cells
|
---|
[600] | 2593 |
|
---|
[440] | 2594 | int vcSize = 0;
|
---|
| 2595 | int pvsSize = 0;
|
---|
| 2596 |
|
---|
[591] | 2597 | //-- merge view cells
|
---|
[649] | 2598 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2599 | long startTime = GetTime();
|
---|
| 2600 |
|
---|
| 2601 | VssRayContainer postProcessRays;
|
---|
| 2602 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2603 |
|
---|
[592] | 2604 | if (mMergeViewCells)
|
---|
[591] | 2605 | {
|
---|
[660] | 2606 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2607 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2608 | }
|
---|
| 2609 | else
|
---|
| 2610 | {
|
---|
[660] | 2611 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2612 |
|
---|
[649] | 2613 | // create spatial merge hierarchy
|
---|
[752] | 2614 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2615 | mViewCellsTree->SetRoot(root);
|
---|
| 2616 |
|
---|
| 2617 | // compute pvs
|
---|
| 2618 | ObjectPvs pvs;
|
---|
| 2619 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2620 | }
|
---|
[440] | 2621 |
|
---|
[660] | 2622 | // export statistics after merge
|
---|
[666] | 2623 | if (1)
|
---|
| 2624 | {
|
---|
| 2625 | char mstats[100];
|
---|
[1004] | 2626 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2627 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2628 | }
|
---|
[650] | 2629 |
|
---|
[649] | 2630 | //-- stats and visualizations
|
---|
| 2631 | cout << "finished" << endl;
|
---|
[650] | 2632 | cout << "merged view cells in "
|
---|
[752] | 2633 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[440] | 2634 |
|
---|
[650] | 2635 | Debug << "Postprocessing: Merged view cells in "
|
---|
[752] | 2636 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
[649] | 2637 |
|
---|
[503] | 2638 |
|
---|
[660] | 2639 | //-- visualization and statistics
|
---|
[600] | 2640 | // reset view cells and stats
|
---|
[480] | 2641 | ResetViewCells();
|
---|
[660] | 2642 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2643 |
|
---|
[1121] | 2644 | // save color code
|
---|
| 2645 | const int savedColorCode = mColorCode;
|
---|
[605] | 2646 |
|
---|
[600] | 2647 | //BspLeaf::NewMail();
|
---|
| 2648 | if (1) // export merged view cells
|
---|
| 2649 | {
|
---|
| 2650 | mColorCode = 0;
|
---|
[605] | 2651 |
|
---|
[744] | 2652 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2653 |
|
---|
[600] | 2654 |
|
---|
| 2655 | cout << "exporting view cells after merge ... ";
|
---|
| 2656 |
|
---|
| 2657 | if (exporter)
|
---|
| 2658 | {
|
---|
| 2659 | if (mExportGeometry)
|
---|
| 2660 | exporter->ExportGeometry(objects);
|
---|
| 2661 |
|
---|
| 2662 | //exporter->SetWireframe();
|
---|
| 2663 | exporter->SetFilled();
|
---|
| 2664 | ExportViewCellsForViz(exporter);
|
---|
| 2665 |
|
---|
| 2666 |
|
---|
| 2667 | delete exporter;
|
---|
| 2668 | }
|
---|
| 2669 | cout << "finished" << endl;
|
---|
| 2670 | }
|
---|
| 2671 |
|
---|
[752] | 2672 | if (1) // export merged view cells using pvs color coding
|
---|
[600] | 2673 | {
|
---|
| 2674 | mColorCode = 1;
|
---|
| 2675 |
|
---|
[744] | 2676 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2677 |
|
---|
| 2678 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2679 |
|
---|
| 2680 | if (exporter)
|
---|
| 2681 | {
|
---|
| 2682 | //exporter->SetWireframe();
|
---|
[752] | 2683 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
| 2684 |
|
---|
[600] | 2685 | if (mExportGeometry)
|
---|
| 2686 | exporter->ExportGeometry(objects);
|
---|
| 2687 |
|
---|
| 2688 | //exporter->SetWireframe();
|
---|
| 2689 | exporter->SetFilled();
|
---|
| 2690 | ExportViewCellsForViz(exporter);
|
---|
| 2691 |
|
---|
| 2692 | delete exporter;
|
---|
| 2693 | }
|
---|
| 2694 | cout << "finished" << endl;
|
---|
| 2695 | }
|
---|
[693] | 2696 |
|
---|
[1122] | 2697 | // only for debugging purpose: test if the subdivision is valid
|
---|
| 2698 | if (0) TestSubdivision();
|
---|
[693] | 2699 |
|
---|
[600] | 2700 | mColorCode = savedColorCode;
|
---|
| 2701 |
|
---|
[719] | 2702 | // compute final meshes and volume / area
|
---|
| 2703 | if (1) FinalizeViewCells(true);
|
---|
| 2704 |
|
---|
[587] | 2705 | // write view cells to disc
|
---|
| 2706 | if (mExportViewCells)
|
---|
| 2707 | {
|
---|
[840] | 2708 | char filename[100];
|
---|
[1004] | 2709 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2710 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2711 | }
|
---|
[840] | 2712 |
|
---|
| 2713 | // export bounding boxes
|
---|
[931] | 2714 | if (0 && mExportBboxesForPvs)
|
---|
[840] | 2715 | {
|
---|
| 2716 | char filename[100];
|
---|
[1004] | 2717 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[840] | 2718 | ExportBoundingBoxes(filename, objects);
|
---|
| 2719 | }
|
---|
[587] | 2720 |
|
---|
[840] | 2721 |
|
---|
[650] | 2722 | return 0;
|
---|
[440] | 2723 | }
|
---|
| 2724 |
|
---|
[477] | 2725 |
|
---|
| 2726 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2727 | {
|
---|
| 2728 | }
|
---|
| 2729 |
|
---|
| 2730 |
|
---|
[440] | 2731 | int BspViewCellsManager::GetType() const
|
---|
| 2732 | {
|
---|
| 2733 | return BSP;
|
---|
| 2734 | }
|
---|
| 2735 |
|
---|
| 2736 |
|
---|
| 2737 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2738 | const VssRayContainer &sampleRays)
|
---|
[440] | 2739 | {
|
---|
[469] | 2740 | if (!ViewCellsConstructed())
|
---|
| 2741 | return;
|
---|
[574] | 2742 |
|
---|
[600] | 2743 | int savedColorCode = mColorCode;
|
---|
| 2744 |
|
---|
| 2745 |
|
---|
| 2746 | if (1) // export final view cells
|
---|
[440] | 2747 | {
|
---|
[1020] | 2748 | mColorCode = 1; // hack color code
|
---|
[822] | 2749 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 2750 |
|
---|
| 2751 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2752 |
|
---|
[469] | 2753 | if (exporter)
|
---|
[440] | 2754 | {
|
---|
[600] | 2755 | //exporter->SetWireframe();
|
---|
| 2756 |
|
---|
| 2757 | if (mExportGeometry)
|
---|
| 2758 | exporter->ExportGeometry(objects);
|
---|
[590] | 2759 |
|
---|
[801] | 2760 | //exporter->SetFilled();
|
---|
[1020] | 2761 | const bool b = mUseClipPlaneForViz;
|
---|
[801] | 2762 | mUseClipPlaneForViz = false;
|
---|
[1020] | 2763 |
|
---|
[508] | 2764 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 2765 |
|
---|
[801] | 2766 | mUseClipPlaneForViz = b;
|
---|
[469] | 2767 | delete exporter;
|
---|
[440] | 2768 | }
|
---|
[469] | 2769 | cout << "finished" << endl;
|
---|
[503] | 2770 | }
|
---|
[477] | 2771 |
|
---|
[600] | 2772 | mColorCode = savedColorCode;
|
---|
| 2773 |
|
---|
[469] | 2774 | //-- visualization of the BSP splits
|
---|
| 2775 | bool exportSplits = false;
|
---|
[1004] | 2776 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2777 |
|
---|
[469] | 2778 | if (exportSplits)
|
---|
[440] | 2779 | {
|
---|
[469] | 2780 | cout << "exporting splits ... ";
|
---|
[477] | 2781 | ExportSplits(objects);
|
---|
[469] | 2782 | cout << "finished" << endl;
|
---|
[440] | 2783 | }
|
---|
[477] | 2784 |
|
---|
[600] | 2785 | // export single view cells
|
---|
[477] | 2786 | ExportBspPvs(objects);
|
---|
[440] | 2787 | }
|
---|
| 2788 |
|
---|
| 2789 |
|
---|
[477] | 2790 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2791 | {
|
---|
| 2792 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2793 |
|
---|
[503] | 2794 | if (exporter)
|
---|
| 2795 | {
|
---|
[598] | 2796 | //exporter->SetFilled();
|
---|
| 2797 |
|
---|
| 2798 | if (mExportGeometry)
|
---|
| 2799 | exporter->ExportGeometry(objects);
|
---|
| 2800 |
|
---|
[503] | 2801 | Material m;
|
---|
[440] | 2802 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2803 | exporter->SetForcedMaterial(m);
|
---|
| 2804 | exporter->SetWireframe();
|
---|
[503] | 2805 |
|
---|
[440] | 2806 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2807 |
|
---|
[482] | 2808 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2809 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2810 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2811 | //exporter->ResetForcedMaterial();
|
---|
| 2812 |
|
---|
[440] | 2813 | delete exporter;
|
---|
| 2814 | }
|
---|
| 2815 | }
|
---|
| 2816 |
|
---|
[477] | 2817 |
|
---|
| 2818 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2819 | {
|
---|
[477] | 2820 | const int leafOut = 10;
|
---|
[503] | 2821 |
|
---|
[477] | 2822 | ViewCell::NewMail();
|
---|
[440] | 2823 |
|
---|
[477] | 2824 | //-- some rays for output
|
---|
| 2825 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2826 |
|
---|
[477] | 2827 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2828 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2829 |
|
---|
[997] | 2830 | // sort view cells in order to find the largest view cells
|
---|
[587] | 2831 | if (0)
|
---|
[801] | 2832 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[587] | 2833 |
|
---|
[503] | 2834 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2835 |
|
---|
[478] | 2836 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2837 | {
|
---|
[478] | 2838 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2839 | VssRayContainer vcRays;
|
---|
| 2840 | Intersectable::NewMail();
|
---|
[582] | 2841 | ViewCell *vc;
|
---|
| 2842 |
|
---|
| 2843 | if (0)
|
---|
| 2844 | vc = mViewCells[i];
|
---|
| 2845 | else
|
---|
| 2846 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2847 |
|
---|
[478] | 2848 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2849 |
|
---|
[587] | 2850 | if(0)
|
---|
[477] | 2851 | {
|
---|
[587] | 2852 | // check whether we can add the current ray to the output rays
|
---|
| 2853 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2854 | {
|
---|
[587] | 2855 | BspRay *ray = mBspRays[k];
|
---|
| 2856 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2857 | {
|
---|
| 2858 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2859 | if (vc == leaf->GetViewCell())
|
---|
| 2860 | vcRays.push_back(ray->vssRay);
|
---|
| 2861 | }
|
---|
[477] | 2862 | }
|
---|
| 2863 | }
|
---|
[587] | 2864 |
|
---|
[478] | 2865 | //bspLeaves[j]->Mail();
|
---|
| 2866 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2867 |
|
---|
[478] | 2868 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2869 |
|
---|
[478] | 2870 | exporter->SetWireframe();
|
---|
[477] | 2871 |
|
---|
[478] | 2872 | Material m;//= RandomMaterial();
|
---|
| 2873 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2874 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2875 |
|
---|
[587] | 2876 | ExportViewCellGeometry(exporter, vc);
|
---|
| 2877 |
|
---|
[478] | 2878 | // export rays piercing this view cell
|
---|
| 2879 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2880 |
|
---|
[478] | 2881 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2882 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2883 |
|
---|
[478] | 2884 | ObjectPvsMap::const_iterator it,
|
---|
| 2885 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2886 |
|
---|
[478] | 2887 | exporter->SetFilled();
|
---|
[469] | 2888 |
|
---|
[478] | 2889 | // output PVS of view cell
|
---|
[503] | 2890 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2891 | {
|
---|
| 2892 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2893 |
|
---|
[478] | 2894 | if (!intersect->Mailed())
|
---|
| 2895 | {
|
---|
| 2896 | Material m = RandomMaterial();
|
---|
| 2897 | exporter->SetForcedMaterial(m);
|
---|
| 2898 |
|
---|
| 2899 | exporter->ExportIntersectable(intersect);
|
---|
| 2900 | intersect->Mail();
|
---|
[503] | 2901 | }
|
---|
[477] | 2902 | }
|
---|
[503] | 2903 |
|
---|
[478] | 2904 | DEL_PTR(exporter);
|
---|
| 2905 | cout << "finished" << endl;
|
---|
[477] | 2906 | }
|
---|
| 2907 |
|
---|
| 2908 | Debug << endl;
|
---|
[440] | 2909 | }
|
---|
| 2910 |
|
---|
[441] | 2911 |
|
---|
[693] | 2912 | void BspViewCellsManager::TestSubdivision()
|
---|
| 2913 | {
|
---|
| 2914 | ViewCellContainer leaves;
|
---|
| 2915 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 2916 |
|
---|
| 2917 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2918 |
|
---|
| 2919 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 2920 | float subdivVol = 0;
|
---|
| 2921 | float newVol = 0;
|
---|
| 2922 |
|
---|
| 2923 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2924 | {
|
---|
| 2925 | BspNodeGeometry geom;
|
---|
| 2926 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2927 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2928 |
|
---|
| 2929 | const float lVol = geom.GetVolume();
|
---|
| 2930 |
|
---|
| 2931 | newVol += lVol;
|
---|
| 2932 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 2933 |
|
---|
[704] | 2934 | float thres = 0.9f;
|
---|
[694] | 2935 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 2936 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 2937 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 2938 | }
|
---|
| 2939 |
|
---|
| 2940 | Debug << "exact volume: " << vol << endl;
|
---|
| 2941 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 2942 | Debug << "new volume: " << newVol << endl;
|
---|
| 2943 | }
|
---|
| 2944 |
|
---|
| 2945 |
|
---|
[580] | 2946 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2947 | ViewCell *vc,
|
---|
[1047] | 2948 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 2949 | {
|
---|
[1027] | 2950 | // export mesh if available
|
---|
[482] | 2951 | if (vc->GetMesh())
|
---|
| 2952 | {
|
---|
[587] | 2953 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 2954 | return;
|
---|
[482] | 2955 | }
|
---|
[1027] | 2956 | // otherwise construct from leaves
|
---|
[660] | 2957 | if (clipPlane)
|
---|
[591] | 2958 | {
|
---|
[1047] | 2959 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 2960 |
|
---|
[726] | 2961 | ViewCellContainer leaves;
|
---|
| 2962 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2963 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 2964 |
|
---|
[726] | 2965 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 2966 | {
|
---|
[726] | 2967 | BspNodeGeometry geom;
|
---|
| 2968 |
|
---|
[681] | 2969 | BspNodeGeometry front;
|
---|
| 2970 | BspNodeGeometry back;
|
---|
[591] | 2971 |
|
---|
[726] | 2972 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2973 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 2974 |
|
---|
[726] | 2975 | const float eps = 0.00000001f;
|
---|
[1047] | 2976 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 2977 |
|
---|
| 2978 | if (cf == -1)
|
---|
| 2979 | {
|
---|
| 2980 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 2981 | }
|
---|
| 2982 | else if (cf == 0)
|
---|
| 2983 | {
|
---|
| 2984 | geom.SplitGeometry(front,
|
---|
| 2985 | back,
|
---|
[1047] | 2986 | plane,
|
---|
[726] | 2987 | mViewSpaceBox,
|
---|
| 2988 | eps);
|
---|
| 2989 |
|
---|
| 2990 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 2991 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 2992 | if (back.Valid())
|
---|
| 2993 | {
|
---|
| 2994 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 2995 | }
|
---|
| 2996 | }
|
---|
[681] | 2997 | }
|
---|
[591] | 2998 | }
|
---|
| 2999 | else
|
---|
| 3000 | {
|
---|
[726] | 3001 | BspNodeGeometry geom;
|
---|
| 3002 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3003 |
|
---|
[678] | 3004 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 3005 | }
|
---|
[482] | 3006 | }
|
---|
| 3007 |
|
---|
[503] | 3008 |
|
---|
| 3009 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3010 | {
|
---|
[726] | 3011 | // delete previous mesh
|
---|
| 3012 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 3013 | BspNodeGeometry geom;
|
---|
| 3014 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3015 |
|
---|
[1001] | 3016 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3017 |
|
---|
[840] | 3018 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3019 | vc->SetMesh(mesh);
|
---|
[503] | 3020 | }
|
---|
| 3021 |
|
---|
[551] | 3022 |
|
---|
[587] | 3023 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3024 | const bool createMesh)
|
---|
[502] | 3025 | {
|
---|
[587] | 3026 | float area = 0;
|
---|
| 3027 | float volume = 0;
|
---|
[572] | 3028 |
|
---|
[587] | 3029 | ViewCellContainer leaves;
|
---|
| 3030 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3031 |
|
---|
| 3032 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3033 |
|
---|
[693] | 3034 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3035 | {
|
---|
| 3036 | BspNodeGeometry geom;
|
---|
| 3037 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3038 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3039 |
|
---|
[719] | 3040 | const float lVol = geom.GetVolume();
|
---|
| 3041 | const float lArea = geom.GetArea();
|
---|
[693] | 3042 |
|
---|
| 3043 | //(*it)->SetVolume(vol);
|
---|
| 3044 | //(*it)->SetArea(area);
|
---|
| 3045 |
|
---|
| 3046 | area += lArea;
|
---|
| 3047 | volume += lVol;
|
---|
| 3048 |
|
---|
| 3049 | CreateMesh(*it);
|
---|
[587] | 3050 | }
|
---|
| 3051 |
|
---|
| 3052 | viewCell->SetVolume(volume);
|
---|
| 3053 | viewCell->SetArea(area);
|
---|
[502] | 3054 | }
|
---|
| 3055 |
|
---|
[580] | 3056 |
|
---|
[879] | 3057 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3058 | {
|
---|
[1021] | 3059 | if (!ViewCellsConstructed())
|
---|
[587] | 3060 | return NULL;
|
---|
| 3061 |
|
---|
| 3062 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 3063 | return NULL;
|
---|
| 3064 |
|
---|
| 3065 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3066 | }
|
---|
| 3067 |
|
---|
| 3068 |
|
---|
[587] | 3069 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3070 | vector<MergeCandidate> &candidates)
|
---|
| 3071 | {
|
---|
| 3072 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3073 |
|
---|
| 3074 | if (mUseRaysForMerge)
|
---|
| 3075 | {
|
---|
| 3076 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3077 | }
|
---|
| 3078 | else
|
---|
| 3079 | {
|
---|
| 3080 | vector<BspLeaf *> leaves;
|
---|
| 3081 | mBspTree->CollectLeaves(leaves);
|
---|
| 3082 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3083 | }
|
---|
| 3084 |
|
---|
| 3085 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3086 | }
|
---|
| 3087 |
|
---|
| 3088 |
|
---|
[440] | 3089 |
|
---|
[1047] | 3090 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3091 | const bool exportPvs,
|
---|
| 3092 | const ObjectContainer &objects)
|
---|
[590] | 3093 | {
|
---|
[1077] | 3094 | #if TODO
|
---|
[590] | 3095 | cout << "exporting view cells to xml ... ";
|
---|
| 3096 | std::ofstream stream;
|
---|
[503] | 3097 |
|
---|
[590] | 3098 | // for output we need unique ids for each view cell
|
---|
| 3099 | CreateUniqueViewCellIds();
|
---|
[503] | 3100 |
|
---|
[590] | 3101 |
|
---|
| 3102 | stream.open(filename.c_str());
|
---|
| 3103 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3104 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3105 |
|
---|
| 3106 | //-- the view space bounding box
|
---|
| 3107 | stream << "<ViewSpaceBox"
|
---|
| 3108 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3109 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 3110 |
|
---|
| 3111 | //-- the type of the view cells hierarchy
|
---|
[975] | 3112 |
|
---|
[840] | 3113 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
[975] | 3114 | stream << "<Hierarchy name=\"vspBspTree\" >" << endl;
|
---|
[840] | 3115 |
|
---|
[590] | 3116 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 3117 | stream << "<ViewCells>" << endl;
|
---|
[610] | 3118 |
|
---|
[871] | 3119 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[590] | 3120 |
|
---|
| 3121 | stream << "</ViewCells>" << endl;
|
---|
| 3122 |
|
---|
| 3123 | //-- load the hierarchy
|
---|
| 3124 | stream << "<Hierarchy>" << endl;
|
---|
| 3125 | mBspTree->Export(stream);
|
---|
| 3126 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 3127 |
|
---|
[975] | 3128 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3129 | stream.close();
|
---|
| 3130 |
|
---|
| 3131 | cout << "finished" << endl;
|
---|
[955] | 3132 | #endif
|
---|
[590] | 3133 | return true;
|
---|
| 3134 | }
|
---|
| 3135 |
|
---|
| 3136 |
|
---|
[650] | 3137 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3138 | {
|
---|
[752] | 3139 | // terminate recursion
|
---|
[650] | 3140 | if (root->IsLeaf())
|
---|
| 3141 | {
|
---|
[752] | 3142 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3143 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3144 | return leaf->GetViewCell();
|
---|
[650] | 3145 | }
|
---|
| 3146 |
|
---|
| 3147 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3148 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3149 |
|
---|
[752] | 3150 | // evaluate merge cost for priority traversal
|
---|
[650] | 3151 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3152 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3153 |
|
---|
[650] | 3154 | float volume = 0;
|
---|
[649] | 3155 |
|
---|
[650] | 3156 | BspNode *front = interior->GetFront();
|
---|
| 3157 | BspNode *back = interior->GetBack();
|
---|
[649] | 3158 |
|
---|
[752] | 3159 |
|
---|
| 3160 | //-- recursivly compute child hierarchies
|
---|
[650] | 3161 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3162 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3163 |
|
---|
[752] | 3164 |
|
---|
| 3165 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3166 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3167 |
|
---|
[650] | 3168 | volume += backVc->GetVolume();
|
---|
| 3169 | volume += frontVc->GetVolume();
|
---|
[649] | 3170 |
|
---|
[650] | 3171 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3172 |
|
---|
[650] | 3173 | return viewCellInterior;
|
---|
[610] | 3174 | }
|
---|
| 3175 |
|
---|
[650] | 3176 |
|
---|
[752] | 3177 | void BspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 3178 | {
|
---|
| 3179 | // terminate traversal
|
---|
| 3180 | if (root->IsLeaf())
|
---|
| 3181 | {
|
---|
| 3182 | pvs = root->GetPvs();
|
---|
[1002] | 3183 | SetScalarPvsSize(root, pvs.GetSize());
|
---|
| 3184 |
|
---|
[752] | 3185 | return;
|
---|
| 3186 | }
|
---|
| 3187 |
|
---|
| 3188 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 3189 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 3190 |
|
---|
| 3191 | vector<ObjectPvs> pvsList;
|
---|
| 3192 |
|
---|
| 3193 |
|
---|
| 3194 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 3195 | {
|
---|
| 3196 | ObjectPvs objPvs;
|
---|
| 3197 |
|
---|
| 3198 | //-- recursivly compute child pvss
|
---|
| 3199 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 3200 |
|
---|
| 3201 | // store pvs in vector
|
---|
| 3202 | pvsList.push_back(objPvs);
|
---|
| 3203 | }
|
---|
| 3204 |
|
---|
| 3205 | #if 1
|
---|
| 3206 | Intersectable::NewMail();
|
---|
| 3207 |
|
---|
| 3208 | //-- faster way of computing pvs:
|
---|
| 3209 | // construct merged pvs by adding
|
---|
| 3210 | // and only those of the next pvs which were not mailed.
|
---|
| 3211 | // note: sumpdf is not correct!!
|
---|
| 3212 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 3213 |
|
---|
| 3214 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 3215 | {
|
---|
| 3216 |
|
---|
| 3217 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 3218 |
|
---|
| 3219 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 3220 | {
|
---|
| 3221 |
|
---|
| 3222 | Intersectable *intersect = (*pit).first;
|
---|
| 3223 |
|
---|
| 3224 | if (!intersect->Mailed())
|
---|
| 3225 | {
|
---|
| 3226 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 3227 | intersect->Mail();
|
---|
| 3228 | }
|
---|
| 3229 | }
|
---|
| 3230 | }
|
---|
| 3231 |
|
---|
| 3232 | // store pvs in this node
|
---|
| 3233 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 3234 | {
|
---|
[1002] | 3235 | interior->SetPvs(pvs);
|
---|
[752] | 3236 | }
|
---|
| 3237 |
|
---|
| 3238 | // set new pvs size
|
---|
[1002] | 3239 | SetScalarPvsSize(interior, pvs.GetSize());
|
---|
[752] | 3240 |
|
---|
| 3241 | #else
|
---|
[1021] | 3242 | // really merge cells: slow nut sumpdf is correct
|
---|
[752] | 3243 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3244 |
|
---|
| 3245 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 3246 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 3247 | #endif
|
---|
| 3248 |
|
---|
| 3249 | }
|
---|
| 3250 |
|
---|
[590] | 3251 | /************************************************************************/
|
---|
| 3252 | /* KdViewCellsManager implementation */
|
---|
| 3253 | /************************************************************************/
|
---|
| 3254 |
|
---|
| 3255 |
|
---|
| 3256 |
|
---|
[1004] | 3257 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
| 3258 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3259 | {
|
---|
| 3260 | }
|
---|
| 3261 |
|
---|
[605] | 3262 |
|
---|
[471] | 3263 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3264 | {
|
---|
[479] | 3265 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3266 | if (0)
|
---|
| 3267 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3268 | else
|
---|
| 3269 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3270 | }
|
---|
| 3271 |
|
---|
| 3272 |
|
---|
| 3273 |
|
---|
[479] | 3274 |
|
---|
[480] | 3275 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3276 | {
|
---|
| 3277 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3278 | }
|
---|
[479] | 3279 |
|
---|
[519] | 3280 |
|
---|
[574] | 3281 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3282 | const VssRayContainer &rays)
|
---|
[440] | 3283 | {
|
---|
[441] | 3284 | // if view cells already constructed
|
---|
[440] | 3285 | if (ViewCellsConstructed())
|
---|
| 3286 | return 0;
|
---|
[441] | 3287 |
|
---|
[440] | 3288 | mKdTree->Construct();
|
---|
| 3289 |
|
---|
[480] | 3290 | mTotalAreaValid = false;
|
---|
[469] | 3291 | // create the view cells
|
---|
| 3292 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 3293 |
|
---|
[480] | 3294 | // cast rays
|
---|
[574] | 3295 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3296 |
|
---|
[479] | 3297 | EvaluateViewCellsStats();
|
---|
[660] | 3298 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3299 |
|
---|
[440] | 3300 | return 0;
|
---|
| 3301 | }
|
---|
| 3302 |
|
---|
[587] | 3303 |
|
---|
[440] | 3304 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3305 | {
|
---|
| 3306 | return mKdTree->GetRoot() != NULL;
|
---|
| 3307 | }
|
---|
| 3308 |
|
---|
[1020] | 3309 |
|
---|
[503] | 3310 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3311 | const VssRayContainer &rays)
|
---|
[440] | 3312 | {
|
---|
| 3313 | return 0;
|
---|
| 3314 | }
|
---|
| 3315 |
|
---|
[1020] | 3316 |
|
---|
[440] | 3317 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3318 | const VssRayContainer &sampleRays)
|
---|
[440] | 3319 | {
|
---|
[441] | 3320 | if (!ViewCellsConstructed())
|
---|
| 3321 | return;
|
---|
| 3322 |
|
---|
[469] | 3323 | // using view cells instead of the kd PVS of objects
|
---|
| 3324 | const bool useViewCells = true;
|
---|
| 3325 | bool exportRays = false;
|
---|
[440] | 3326 |
|
---|
| 3327 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3328 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3329 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3330 |
|
---|
[469] | 3331 | if (useViewCells)
|
---|
[440] | 3332 | {
|
---|
[469] | 3333 | const int leafOut = 10;
|
---|
[503] | 3334 |
|
---|
[469] | 3335 | ViewCell::NewMail();
|
---|
[503] | 3336 |
|
---|
[469] | 3337 | //-- some rays for output
|
---|
| 3338 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3339 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3340 |
|
---|
| 3341 | //-- some random view cells and rays for output
|
---|
| 3342 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3343 |
|
---|
[469] | 3344 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3345 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3346 |
|
---|
[469] | 3347 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3348 | {
|
---|
[469] | 3349 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3350 | RayContainer vcRays;
|
---|
[503] | 3351 |
|
---|
[469] | 3352 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3353 | #if 0
|
---|
[469] | 3354 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3355 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3356 | {
|
---|
[469] | 3357 | Ray *ray = sampleRays[k];
|
---|
[503] | 3358 |
|
---|
[469] | 3359 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3360 | {
|
---|
| 3361 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3362 |
|
---|
| 3363 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3364 | {
|
---|
| 3365 | vcRays.push_back(ray);
|
---|
| 3366 | }
|
---|
| 3367 | }
|
---|
[479] | 3368 | }
|
---|
[503] | 3369 | #endif
|
---|
[469] | 3370 | Intersectable::NewMail();
|
---|
[503] | 3371 |
|
---|
[469] | 3372 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 3373 |
|
---|
[469] | 3374 | //bspLeaves[j]->Mail();
|
---|
| 3375 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 3376 |
|
---|
[469] | 3377 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3378 | exporter->SetFilled();
|
---|
| 3379 |
|
---|
| 3380 | exporter->SetWireframe();
|
---|
| 3381 | //exporter->SetFilled();
|
---|
[503] | 3382 |
|
---|
[469] | 3383 | Material m;//= RandomMaterial();
|
---|
| 3384 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3385 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3386 |
|
---|
[469] | 3387 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3388 | exporter->ExportBox(box);
|
---|
| 3389 |
|
---|
| 3390 | // export rays piercing this view cell
|
---|
[503] | 3391 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3392 |
|
---|
[469] | 3393 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3394 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3395 |
|
---|
[469] | 3396 | // exporter->SetWireframe();
|
---|
| 3397 | exporter->SetFilled();
|
---|
[503] | 3398 |
|
---|
[469] | 3399 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3400 | // -- output PVS of view cell
|
---|
[503] | 3401 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3402 | {
|
---|
| 3403 | Intersectable *intersect = (*it).first;
|
---|
| 3404 | if (!intersect->Mailed())
|
---|
| 3405 | {
|
---|
| 3406 | exporter->ExportIntersectable(intersect);
|
---|
| 3407 | intersect->Mail();
|
---|
[503] | 3408 | }
|
---|
[440] | 3409 | }
|
---|
[503] | 3410 |
|
---|
[469] | 3411 | DEL_PTR(exporter);
|
---|
| 3412 | cout << "finished" << endl;
|
---|
[440] | 3413 | }
|
---|
[469] | 3414 |
|
---|
| 3415 | DEL_PTR(rays);
|
---|
[440] | 3416 | }
|
---|
[469] | 3417 | else // using kd PVS of objects
|
---|
| 3418 | {
|
---|
| 3419 | for (int i = 0; i < limit; ++ i)
|
---|
| 3420 | {
|
---|
| 3421 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3422 |
|
---|
[469] | 3423 | // check whether we can add this to the rays
|
---|
[503] | 3424 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3425 | {
|
---|
| 3426 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3427 | {
|
---|
| 3428 | rays[j].push_back(ray);
|
---|
| 3429 | }
|
---|
| 3430 | }
|
---|
| 3431 | }
|
---|
[440] | 3432 |
|
---|
[503] | 3433 | if (exportRays)
|
---|
[469] | 3434 | {
|
---|
| 3435 | Exporter *exporter = NULL;
|
---|
| 3436 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3437 | exporter->SetWireframe();
|
---|
| 3438 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3439 |
|
---|
[728] | 3440 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3441 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3442 |
|
---|
| 3443 | exporter->SetFilled();
|
---|
[503] | 3444 |
|
---|
[469] | 3445 | delete exporter;
|
---|
| 3446 | }
|
---|
[440] | 3447 |
|
---|
[503] | 3448 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3449 | {
|
---|
| 3450 | Intersectable *object = objects[k];
|
---|
[503] | 3451 | char s[64];
|
---|
[469] | 3452 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 3453 |
|
---|
[469] | 3454 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3455 | exporter->SetWireframe();
|
---|
[503] | 3456 |
|
---|
[469] | 3457 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 3458 | Intersectable::NewMail();
|
---|
[503] | 3459 |
|
---|
[469] | 3460 | // avoid adding the object to the list
|
---|
| 3461 | object->Mail();
|
---|
| 3462 | ObjectContainer visibleObjects;
|
---|
[503] | 3463 |
|
---|
| 3464 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3465 | {
|
---|
| 3466 | KdNode *node = (*i).first;
|
---|
| 3467 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3468 |
|
---|
[469] | 3469 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3470 | }
|
---|
[503] | 3471 |
|
---|
[469] | 3472 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3473 | exporter->SetFilled();
|
---|
[503] | 3474 |
|
---|
[469] | 3475 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3476 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3477 |
|
---|
[469] | 3478 | Material m;
|
---|
| 3479 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3480 | exporter->SetForcedMaterial(m);
|
---|
| 3481 | exporter->ExportIntersectable(object);
|
---|
[503] | 3482 |
|
---|
[469] | 3483 | delete exporter;
|
---|
[440] | 3484 | }
|
---|
[503] | 3485 | }
|
---|
[440] | 3486 | }
|
---|
| 3487 |
|
---|
[469] | 3488 |
|
---|
[580] | 3489 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3490 | {
|
---|
| 3491 | return new KdViewCell(mesh);
|
---|
| 3492 | }
|
---|
[482] | 3493 |
|
---|
[580] | 3494 |
|
---|
| 3495 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3496 | ViewCell *vc,
|
---|
[1047] | 3497 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 3498 | {
|
---|
[580] | 3499 | ViewCellContainer leaves;
|
---|
[485] | 3500 |
|
---|
[580] | 3501 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3502 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3503 |
|
---|
| 3504 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3505 | {
|
---|
| 3506 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 3507 |
|
---|
| 3508 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 3509 | }
|
---|
[482] | 3510 | }
|
---|
| 3511 |
|
---|
| 3512 |
|
---|
[440] | 3513 | int KdViewCellsManager::GetType() const
|
---|
| 3514 | {
|
---|
| 3515 | return ViewCellsManager::KD;
|
---|
| 3516 | }
|
---|
| 3517 |
|
---|
| 3518 |
|
---|
[441] | 3519 |
|
---|
[440] | 3520 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3521 | {
|
---|
| 3522 | KdNode *node = leaf;
|
---|
| 3523 |
|
---|
| 3524 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3525 | node = node->mParent;
|
---|
| 3526 | return node;
|
---|
| 3527 | }
|
---|
| 3528 |
|
---|
[469] | 3529 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3530 | const Vector3 &termination,
|
---|
| 3531 | ViewCellContainer &viewcells)
|
---|
[466] | 3532 | {
|
---|
[469] | 3533 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3534 | }
|
---|
| 3535 |
|
---|
[469] | 3536 |
|
---|
[503] | 3537 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3538 | {
|
---|
[551] | 3539 | // TODO
|
---|
[503] | 3540 | }
|
---|
| 3541 |
|
---|
[580] | 3542 |
|
---|
| 3543 |
|
---|
| 3544 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3545 | vector<MergeCandidate> &candidates)
|
---|
| 3546 | {
|
---|
| 3547 | // TODO
|
---|
| 3548 | }
|
---|
| 3549 |
|
---|
[1021] | 3550 |
|
---|
| 3551 |
|
---|
| 3552 |
|
---|
[503] | 3553 | /**************************************************************************/
|
---|
| 3554 | /* VspBspViewCellsManager implementation */
|
---|
| 3555 | /**************************************************************************/
|
---|
[482] | 3556 |
|
---|
[503] | 3557 |
|
---|
[1004] | 3558 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 3559 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 3560 | {
|
---|
[1004] | 3561 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3562 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3563 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3564 | }
|
---|
| 3565 |
|
---|
[477] | 3566 |
|
---|
[475] | 3567 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3568 | {
|
---|
| 3569 | }
|
---|
| 3570 |
|
---|
[477] | 3571 |
|
---|
[471] | 3572 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3573 | {
|
---|
[551] | 3574 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3575 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3576 | else
|
---|
| 3577 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3578 | }
|
---|
| 3579 |
|
---|
[477] | 3580 |
|
---|
[480] | 3581 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3582 | {
|
---|
[581] | 3583 | // view cells tree constructed
|
---|
| 3584 | if (!ViewCellsTreeConstructed())
|
---|
| 3585 | {
|
---|
[590] | 3586 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3587 | }
|
---|
| 3588 | else
|
---|
[664] | 3589 | { // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3590 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3591 | }
|
---|
[480] | 3592 | }
|
---|
| 3593 |
|
---|
| 3594 |
|
---|
[1021] | 3595 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3596 | vector<MergeCandidate> &candidates)
|
---|
| 3597 | {
|
---|
| 3598 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3599 |
|
---|
| 3600 | if (mUseRaysForMerge)
|
---|
| 3601 | {
|
---|
| 3602 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3603 | }
|
---|
| 3604 | else
|
---|
| 3605 | {
|
---|
| 3606 | vector<BspLeaf *> leaves;
|
---|
| 3607 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3608 |
|
---|
| 3609 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3610 | }
|
---|
| 3611 |
|
---|
| 3612 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3613 | }
|
---|
| 3614 |
|
---|
| 3615 |
|
---|
[442] | 3616 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3617 | {
|
---|
| 3618 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3619 | }
|
---|
| 3620 |
|
---|
[462] | 3621 |
|
---|
[442] | 3622 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3623 | {
|
---|
| 3624 | return new BspViewCell(mesh);
|
---|
| 3625 | }
|
---|
| 3626 |
|
---|
[569] | 3627 |
|
---|
[574] | 3628 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3629 | const VssRayContainer &rays)
|
---|
[442] | 3630 | {
|
---|
[710] | 3631 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3632 |
|
---|
[503] | 3633 | // if view cells were already constructed
|
---|
| 3634 | if (ViewCellsConstructed())
|
---|
| 3635 | return 0;
|
---|
[442] | 3636 |
|
---|
[503] | 3637 | int sampleContributions = 0;
|
---|
| 3638 |
|
---|
| 3639 | VssRayContainer sampleRays;
|
---|
| 3640 |
|
---|
[574] | 3641 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3642 |
|
---|
[469] | 3643 | VssRayContainer constructionRays;
|
---|
| 3644 | VssRayContainer savedRays;
|
---|
[442] | 3645 |
|
---|
[660] | 3646 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3647 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3648 |
|
---|
[574] | 3649 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3650 |
|
---|
[574] | 3651 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3652 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3653 |
|
---|
[1002] | 3654 | long startTime;
|
---|
[564] | 3655 |
|
---|
[667] | 3656 | if (1)
|
---|
| 3657 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[666] | 3658 | else
|
---|
[667] | 3659 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
| 3660 |
|
---|
[490] | 3661 | // collapse invalid regions
|
---|
[491] | 3662 | cout << "collapsing invalid tree regions ... ";
|
---|
[1002] | 3663 | startTime = GetTime();
|
---|
| 3664 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3665 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3666 | << " seconds" << endl;
|
---|
| 3667 |
|
---|
[495] | 3668 | cout << "finished" << endl;
|
---|
[503] | 3669 |
|
---|
[1002] | 3670 | //-- stats
|
---|
[660] | 3671 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3672 |
|
---|
[480] | 3673 | ResetViewCells();
|
---|
[660] | 3674 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3675 |
|
---|
[491] | 3676 |
|
---|
[495] | 3677 | startTime = GetTime();
|
---|
[503] | 3678 |
|
---|
[491] | 3679 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3680 |
|
---|
[469] | 3681 | // recast rest of rays
|
---|
[605] | 3682 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3683 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3684 |
|
---|
[491] | 3685 | cout << "finished" << endl;
|
---|
| 3686 |
|
---|
[503] | 3687 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3688 | << " secs" << endl;
|
---|
[442] | 3689 |
|
---|
[485] | 3690 | cout << "construction finished" << endl;
|
---|
[503] | 3691 |
|
---|
[1077] | 3692 |
|
---|
[719] | 3693 | if (0)
|
---|
| 3694 | {
|
---|
[1077] | 3695 | //-- real meshes are contructed at this stage
|
---|
[719] | 3696 | cout << "finalizing view cells ... ";
|
---|
| 3697 | FinalizeViewCells(true);
|
---|
| 3698 | cout << "finished" << endl;
|
---|
| 3699 | }
|
---|
| 3700 |
|
---|
[442] | 3701 | return sampleContributions;
|
---|
| 3702 | }
|
---|
| 3703 |
|
---|
[489] | 3704 |
|
---|
[503] | 3705 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3706 | const ObjectContainer &objects)
|
---|
[475] | 3707 | {
|
---|
[442] | 3708 | int vcSize = 0;
|
---|
| 3709 | int pvsSize = 0;
|
---|
| 3710 |
|
---|
[650] | 3711 | //-- merge view cells
|
---|
| 3712 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3713 | long startTime = GetTime();
|
---|
| 3714 |
|
---|
| 3715 |
|
---|
[597] | 3716 | if (mMergeViewCells)
|
---|
| 3717 | {
|
---|
| 3718 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3719 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3720 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3721 | }
|
---|
| 3722 | else
|
---|
| 3723 | {
|
---|
[710] | 3724 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3725 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3726 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3727 |
|
---|
| 3728 | // compute pvs
|
---|
| 3729 | ObjectPvs pvs;
|
---|
| 3730 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3731 | }
|
---|
[442] | 3732 |
|
---|
[666] | 3733 | if (1)
|
---|
| 3734 | {
|
---|
| 3735 | char mstats[100];
|
---|
[752] | 3736 | ObjectPvs pvs;
|
---|
| 3737 |
|
---|
[1004] | 3738 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3739 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3740 | }
|
---|
[485] | 3741 |
|
---|
[650] | 3742 | //-- stats and visualizations
|
---|
| 3743 | cout << "finished merging" << endl;
|
---|
| 3744 | cout << "merged view cells in "
|
---|
| 3745 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3746 |
|
---|
[650] | 3747 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3748 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3749 |
|
---|
| 3750 |
|
---|
[600] | 3751 | int savedColorCode = mColorCode;
|
---|
| 3752 |
|
---|
[660] | 3753 | // get currently active view cell set
|
---|
| 3754 | ResetViewCells();
|
---|
| 3755 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3756 |
|
---|
[485] | 3757 | //BspLeaf::NewMail();
|
---|
[667] | 3758 | if (1) // export merged view cells
|
---|
[483] | 3759 | {
|
---|
[600] | 3760 | mColorCode = 0;
|
---|
[744] | 3761 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3762 |
|
---|
[485] | 3763 | cout << "exporting view cells after merge ... ";
|
---|
| 3764 |
|
---|
| 3765 | if (exporter)
|
---|
[483] | 3766 | {
|
---|
[600] | 3767 | if (0)
|
---|
| 3768 | exporter->SetWireframe();
|
---|
| 3769 | else
|
---|
| 3770 | exporter->SetFilled();
|
---|
| 3771 |
|
---|
| 3772 | ExportViewCellsForViz(exporter);
|
---|
| 3773 |
|
---|
[485] | 3774 | if (mExportGeometry)
|
---|
[483] | 3775 | {
|
---|
[485] | 3776 | Material m;
|
---|
| 3777 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3778 | exporter->SetForcedMaterial(m);
|
---|
| 3779 | exporter->SetFilled();
|
---|
[442] | 3780 |
|
---|
[485] | 3781 | exporter->ExportGeometry(objects);
|
---|
[442] | 3782 | }
|
---|
[485] | 3783 |
|
---|
[600] | 3784 | delete exporter;
|
---|
| 3785 | }
|
---|
| 3786 | cout << "finished" << endl;
|
---|
| 3787 | }
|
---|
| 3788 |
|
---|
[1077] | 3789 | if (0) // export merged view cells using pvs coding
|
---|
[600] | 3790 | {
|
---|
| 3791 | mColorCode = 1;
|
---|
| 3792 |
|
---|
[744] | 3793 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 3794 |
|
---|
| 3795 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3796 |
|
---|
| 3797 | if (exporter)
|
---|
| 3798 | {
|
---|
[598] | 3799 | if (0)
|
---|
| 3800 | exporter->SetWireframe();
|
---|
| 3801 | else
|
---|
| 3802 | exporter->SetFilled();
|
---|
| 3803 |
|
---|
| 3804 | ExportViewCellsForViz(exporter);
|
---|
| 3805 |
|
---|
[600] | 3806 | if (mExportGeometry)
|
---|
| 3807 | {
|
---|
| 3808 | Material m;
|
---|
| 3809 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3810 | exporter->SetForcedMaterial(m);
|
---|
| 3811 | exporter->SetFilled();
|
---|
| 3812 |
|
---|
| 3813 | exporter->ExportGeometry(objects);
|
---|
| 3814 | }
|
---|
| 3815 |
|
---|
[485] | 3816 | delete exporter;
|
---|
[442] | 3817 | }
|
---|
[485] | 3818 | cout << "finished" << endl;
|
---|
[442] | 3819 | }
|
---|
[600] | 3820 |
|
---|
| 3821 | mColorCode = savedColorCode;
|
---|
| 3822 |
|
---|
[503] | 3823 | }
|
---|
[475] | 3824 |
|
---|
[503] | 3825 |
|
---|
[609] | 3826 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3827 | {
|
---|
[609] | 3828 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3829 | }
|
---|
| 3830 |
|
---|
| 3831 |
|
---|
[609] | 3832 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3833 | {
|
---|
| 3834 | if (!viewCell->IsLeaf())
|
---|
| 3835 | {
|
---|
| 3836 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3837 |
|
---|
[609] | 3838 | return bspVc->mLeaf;
|
---|
| 3839 | }
|
---|
[607] | 3840 | else
|
---|
| 3841 | {
|
---|
| 3842 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3843 |
|
---|
| 3844 | // cannot be node of binary tree
|
---|
| 3845 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3846 | return NULL;
|
---|
[607] | 3847 |
|
---|
| 3848 | ViewCell *left = interior->mChildren[0];
|
---|
| 3849 | ViewCell *right = interior->mChildren[1];
|
---|
| 3850 |
|
---|
[609] | 3851 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3852 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3853 |
|
---|
[609] | 3854 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3855 | {
|
---|
[609] | 3856 | return leftNode->GetParent();
|
---|
[607] | 3857 | }
|
---|
[609] | 3858 | }
|
---|
[607] | 3859 |
|
---|
[609] | 3860 | return NULL;
|
---|
[607] | 3861 | }
|
---|
| 3862 |
|
---|
| 3863 |
|
---|
[564] | 3864 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3865 | const ObjectContainer &objects)
|
---|
[503] | 3866 | {
|
---|
[485] | 3867 | Debug << "render time before refine:" << endl;
|
---|
| 3868 | mRenderer->RenderScene();
|
---|
[503] | 3869 | SimulationStatistics ss;
|
---|
[485] | 3870 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3871 | Debug << ss << endl;
|
---|
| 3872 |
|
---|
[489] | 3873 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3874 | long startTime = GetTime();
|
---|
[485] | 3875 |
|
---|
| 3876 | // refining the merged view cells
|
---|
[580] | 3877 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3878 |
|
---|
[442] | 3879 | //-- stats and visualizations
|
---|
| 3880 | cout << "finished" << endl;
|
---|
[485] | 3881 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3882 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3883 |
|
---|
[485] | 3884 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3885 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3886 | }
|
---|
[495] | 3887 |
|
---|
[517] | 3888 |
|
---|
[503] | 3889 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3890 | const VssRayContainer &rays)
|
---|
[840] | 3891 | {
|
---|
[503] | 3892 | if (!ViewCellsConstructed())
|
---|
| 3893 | {
|
---|
[517] | 3894 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3895 | return 0;
|
---|
| 3896 | }
|
---|
[520] | 3897 |
|
---|
[564] | 3898 |
|
---|
[609] | 3899 | // view cells already finished before post processing step
|
---|
| 3900 | // (i.e. because they were loaded)
|
---|
[520] | 3901 | if (mViewCellsFinished)
|
---|
[542] | 3902 | {
|
---|
[551] | 3903 | FinalizeViewCells(true);
|
---|
[542] | 3904 | EvaluateViewCellsStats();
|
---|
[577] | 3905 |
|
---|
[517] | 3906 | return 0;
|
---|
[542] | 3907 | }
|
---|
[448] | 3908 |
|
---|
[710] | 3909 | // check if new view cells turned invalid
|
---|
| 3910 | int minPvs, maxPvs;
|
---|
[564] | 3911 |
|
---|
[710] | 3912 | if (0)
|
---|
| 3913 | {
|
---|
| 3914 | minPvs = mMinPvsSize;
|
---|
| 3915 | maxPvs = mMaxPvsSize;
|
---|
| 3916 | }
|
---|
| 3917 | else
|
---|
| 3918 | {
|
---|
| 3919 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3920 | maxPvs = mMaxPvsSize;
|
---|
| 3921 | }
|
---|
[720] | 3922 |
|
---|
[710] | 3923 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3924 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3925 |
|
---|
| 3926 | SetValidity(minPvs, maxPvs);
|
---|
| 3927 |
|
---|
[574] | 3928 | // update valid view space according to valid view cells
|
---|
[720] | 3929 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3930 |
|
---|
[720] | 3931 | // area has to be recomputed
|
---|
[574] | 3932 | mTotalAreaValid = false;
|
---|
[517] | 3933 | VssRayContainer postProcessRays;
|
---|
[605] | 3934 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3935 |
|
---|
[517] | 3936 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3937 |
|
---|
[517] | 3938 |
|
---|
[552] | 3939 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3940 | // and to correct the rendering statistics
|
---|
[719] | 3941 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3942 |
|
---|
[597] | 3943 | //-- merge the individual view cells
|
---|
| 3944 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3945 |
|
---|
[720] | 3946 |
|
---|
| 3947 | // only for debugging purpose: test if the subdivision is valid
|
---|
[1122] | 3948 | if (0) TestSubdivision();
|
---|
[693] | 3949 |
|
---|
[597] | 3950 | //-- refines the merged view cells
|
---|
[720] | 3951 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3952 |
|
---|
[719] | 3953 |
|
---|
[660] | 3954 | //-- render simulation after merge + refine
|
---|
[605] | 3955 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3956 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3957 | SimulationStatistics ss;
|
---|
| 3958 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3959 |
|
---|
[580] | 3960 |
|
---|
[605] | 3961 | cout << " finished" << endl;
|
---|
| 3962 | cout << ss << endl;
|
---|
| 3963 | Debug << ss << endl;
|
---|
[600] | 3964 |
|
---|
| 3965 |
|
---|
| 3966 | //-- compression
|
---|
| 3967 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3968 | {
|
---|
| 3969 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3970 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3971 |
|
---|
[752] | 3972 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3973 |
|
---|
| 3974 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3975 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3976 | }
|
---|
| 3977 |
|
---|
[660] | 3978 |
|
---|
[517] | 3979 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 3980 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 3981 |
|
---|
[574] | 3982 | // recompute view cell list and statistics
|
---|
[520] | 3983 | ResetViewCells();
|
---|
| 3984 |
|
---|
[719] | 3985 | // compute final meshes and volume / area
|
---|
| 3986 | if (1) FinalizeViewCells(true);
|
---|
[517] | 3987 |
|
---|
[508] | 3988 | // write view cells to disc
|
---|
| 3989 | if (mExportViewCells)
|
---|
| 3990 | {
|
---|
[840] | 3991 | char filename[100];
|
---|
[1004] | 3992 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 3993 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 3994 | }
|
---|
[517] | 3995 |
|
---|
[840] | 3996 |
|
---|
| 3997 | // export bounding boxes
|
---|
| 3998 | if (mExportBboxesForPvs)
|
---|
| 3999 | {
|
---|
| 4000 | char filename[100];
|
---|
[1004] | 4001 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[850] | 4002 |
|
---|
[840] | 4003 | ExportBoundingBoxes(filename, objects);
|
---|
[508] | 4004 | }
|
---|
[503] | 4005 |
|
---|
| 4006 | return 0;
|
---|
[442] | 4007 | }
|
---|
| 4008 |
|
---|
[490] | 4009 |
|
---|
[442] | 4010 | int VspBspViewCellsManager::GetType() const
|
---|
| 4011 | {
|
---|
| 4012 | return VSP_BSP;
|
---|
| 4013 | }
|
---|
| 4014 |
|
---|
| 4015 |
|
---|
[650] | 4016 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4017 | {
|
---|
[752] | 4018 | // terminate recursion
|
---|
[650] | 4019 | if (root->IsLeaf())
|
---|
| 4020 | {
|
---|
[752] | 4021 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4022 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4023 | return leaf->GetViewCell();
|
---|
[650] | 4024 | }
|
---|
| 4025 |
|
---|
[752] | 4026 |
|
---|
[650] | 4027 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4028 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4029 |
|
---|
[752] | 4030 | // evaluate merge cost for priority traversal
|
---|
[650] | 4031 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4032 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4033 |
|
---|
[650] | 4034 | float volume = 0;
|
---|
| 4035 |
|
---|
| 4036 | BspNode *front = interior->GetFront();
|
---|
| 4037 | BspNode *back = interior->GetBack();
|
---|
[649] | 4038 |
|
---|
[752] | 4039 |
|
---|
| 4040 | ObjectPvs frontPvs, backPvs;
|
---|
| 4041 |
|
---|
| 4042 | //-- recursivly compute child hierarchies
|
---|
[650] | 4043 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4044 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4045 |
|
---|
[752] | 4046 |
|
---|
| 4047 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4048 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4049 |
|
---|
| 4050 | volume += backVc->GetVolume();
|
---|
| 4051 | volume += frontVc->GetVolume();
|
---|
| 4052 |
|
---|
| 4053 | viewCellInterior->SetVolume(volume);
|
---|
| 4054 |
|
---|
| 4055 | return viewCellInterior;
|
---|
[609] | 4056 | }
|
---|
| 4057 |
|
---|
| 4058 |
|
---|
[752] | 4059 |
|
---|
| 4060 | void VspBspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 4061 | {
|
---|
| 4062 | // terminate traversal
|
---|
| 4063 | if (root->IsLeaf())
|
---|
| 4064 | {
|
---|
| 4065 | pvs = root->GetPvs();
|
---|
[1002] | 4066 | SetScalarPvsSize(root, root->GetPvs().GetSize());
|
---|
| 4067 |
|
---|
[752] | 4068 | return;
|
---|
| 4069 | }
|
---|
| 4070 |
|
---|
[801] | 4071 | //-- interior node => propagate pvs up
|
---|
[752] | 4072 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[801] | 4073 | interior->GetPvs().Clear();
|
---|
| 4074 | pvs.Clear();
|
---|
| 4075 | vector<ObjectPvs> pvsList;
|
---|
| 4076 |
|
---|
[752] | 4077 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 4078 |
|
---|
| 4079 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 4080 | {
|
---|
| 4081 | ObjectPvs objPvs;
|
---|
| 4082 |
|
---|
| 4083 | //-- recursivly compute child pvss
|
---|
| 4084 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 4085 |
|
---|
| 4086 | // store pvs in vector
|
---|
| 4087 | pvsList.push_back(objPvs);
|
---|
| 4088 | }
|
---|
| 4089 |
|
---|
| 4090 | #if 1
|
---|
[801] | 4091 |
|
---|
[752] | 4092 | Intersectable::NewMail();
|
---|
| 4093 |
|
---|
| 4094 | //-- faster way of computing pvs:
|
---|
| 4095 | // construct merged pvs by adding
|
---|
| 4096 | // and only those of the next pvs which were not mailed.
|
---|
| 4097 | // note: sumpdf is not correct!!
|
---|
| 4098 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 4099 |
|
---|
| 4100 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 4101 | {
|
---|
| 4102 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 4103 |
|
---|
| 4104 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 4105 | {
|
---|
| 4106 | Intersectable *intersect = (*pit).first;
|
---|
| 4107 |
|
---|
| 4108 | if (!intersect->Mailed())
|
---|
| 4109 | {
|
---|
| 4110 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 4111 | intersect->Mail();
|
---|
| 4112 | }
|
---|
| 4113 | }
|
---|
| 4114 | }
|
---|
| 4115 |
|
---|
| 4116 | // store pvs in this node
|
---|
| 4117 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 4118 | {
|
---|
[1002] | 4119 | interior->SetPvs(pvs);
|
---|
[752] | 4120 | }
|
---|
| 4121 |
|
---|
| 4122 | // set new pvs size
|
---|
[1002] | 4123 | SetScalarPvsSize(interior, pvs.GetSize());
|
---|
| 4124 |
|
---|
[752] | 4125 |
|
---|
| 4126 | #else
|
---|
[801] | 4127 |
|
---|
[1021] | 4128 | // really merge cells: slow but sumpdf is correct
|
---|
[752] | 4129 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 4130 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 4131 | #endif
|
---|
| 4132 |
|
---|
| 4133 | }
|
---|
| 4134 |
|
---|
| 4135 |
|
---|
[490] | 4136 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4137 | {
|
---|
| 4138 | if (!ViewCellsConstructed())
|
---|
| 4139 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4140 |
|
---|
| 4141 | // TODO: set reasonable limit
|
---|
| 4142 | const int limit = 20;
|
---|
| 4143 |
|
---|
| 4144 | for (int i = 0; i < limit; ++ i)
|
---|
| 4145 | {
|
---|
[542] | 4146 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4147 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4148 | {
|
---|
| 4149 | return true;
|
---|
| 4150 | }
|
---|
| 4151 | }
|
---|
[997] | 4152 |
|
---|
[490] | 4153 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4154 | return false;
|
---|
| 4155 | }
|
---|
| 4156 |
|
---|
| 4157 |
|
---|
| 4158 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4159 | {
|
---|
[569] | 4160 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4161 | // validy update in preprocessor for all managers)
|
---|
| 4162 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4163 |
|
---|
[569] | 4164 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4165 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4166 | }
|
---|
| 4167 |
|
---|
| 4168 |
|
---|
[442] | 4169 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4170 | const VssRayContainer &sampleRays)
|
---|
[442] | 4171 | {
|
---|
| 4172 | if (!ViewCellsConstructed())
|
---|
| 4173 | return;
|
---|
| 4174 |
|
---|
[485] | 4175 | VssRayContainer visRays;
|
---|
| 4176 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 4177 |
|
---|
[1077] | 4178 | //-- export final view cell partition
|
---|
| 4179 |
|
---|
| 4180 | if (0)
|
---|
[1047] | 4181 | {
|
---|
| 4182 | // hack pvs
|
---|
[1052] | 4183 | //const int savedColorCode = mColorCode;
|
---|
| 4184 | //mColorCode = 1;
|
---|
[801] | 4185 |
|
---|
[1020] | 4186 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4187 |
|
---|
[442] | 4188 | if (exporter)
|
---|
| 4189 | {
|
---|
[580] | 4190 | cout << "exporting view cells after post process ... ";
|
---|
| 4191 |
|
---|
[600] | 4192 | if (0)
|
---|
[542] | 4193 | {
|
---|
[1004] | 4194 | // export view space box
|
---|
[542] | 4195 | exporter->SetWireframe();
|
---|
| 4196 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4197 | exporter->SetFilled();
|
---|
| 4198 | }
|
---|
| 4199 |
|
---|
[1052] | 4200 | Material m;
|
---|
| 4201 |
|
---|
| 4202 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4203 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4204 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4205 |
|
---|
| 4206 | exporter->SetForcedMaterial(m);
|
---|
| 4207 |
|
---|
| 4208 | if (0 && mExportGeometry)
|
---|
[542] | 4209 | {
|
---|
[485] | 4210 | exporter->ExportGeometry(objects);
|
---|
[542] | 4211 | }
|
---|
[489] | 4212 |
|
---|
| 4213 | // export rays
|
---|
[1047] | 4214 | if (0 && mExportRays)
|
---|
[489] | 4215 | {
|
---|
[1052] | 4216 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4217 | }
|
---|
[564] | 4218 |
|
---|
[801] | 4219 | //exporter->SetFilled();
|
---|
[1020] | 4220 |
|
---|
[1006] | 4221 | // HACK: export without clip plane
|
---|
| 4222 | const bool b = mUseClipPlaneForViz;
|
---|
[1052] | 4223 | //mUseClipPlaneForViz = false;
|
---|
[1020] | 4224 |
|
---|
[508] | 4225 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 4226 |
|
---|
[801] | 4227 | mUseClipPlaneForViz = b;
|
---|
[442] | 4228 | delete exporter;
|
---|
[1020] | 4229 |
|
---|
[580] | 4230 | cout << "finished" << endl;
|
---|
[442] | 4231 | }
|
---|
[600] | 4232 |
|
---|
[1052] | 4233 | //mColorCode = savedColorCode;
|
---|
[557] | 4234 | }
|
---|
[503] | 4235 |
|
---|
[1002] | 4236 |
|
---|
[600] | 4237 | if (0)
|
---|
[577] | 4238 | {
|
---|
| 4239 | cout << "exporting depth map ... ";
|
---|
| 4240 |
|
---|
| 4241 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4242 | if (exporter)
|
---|
| 4243 | {
|
---|
| 4244 | if (1)
|
---|
| 4245 | {
|
---|
| 4246 | exporter->SetWireframe();
|
---|
| 4247 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4248 | exporter->SetFilled();
|
---|
| 4249 | }
|
---|
| 4250 |
|
---|
| 4251 | if (mExportGeometry)
|
---|
| 4252 | {
|
---|
| 4253 | exporter->ExportGeometry(objects);
|
---|
| 4254 | }
|
---|
| 4255 |
|
---|
| 4256 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
| 4257 |
|
---|
| 4258 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4259 |
|
---|
| 4260 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4261 | {
|
---|
[582] | 4262 | ViewCell *vc = *vit;
|
---|
[577] | 4263 |
|
---|
[580] | 4264 | ViewCellContainer leaves;
|
---|
| 4265 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4266 |
|
---|
[580] | 4267 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4268 |
|
---|
| 4269 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4270 | {
|
---|
[580] | 4271 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4272 |
|
---|
| 4273 | Material m;
|
---|
| 4274 |
|
---|
| 4275 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4276 | m.mDiffuseColor.r = relDepth;
|
---|
| 4277 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4278 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4279 |
|
---|
| 4280 | exporter->SetForcedMaterial(m);
|
---|
| 4281 |
|
---|
| 4282 |
|
---|
| 4283 | BspNodeGeometry geom;
|
---|
| 4284 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4285 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4286 | }
|
---|
| 4287 | }
|
---|
| 4288 |
|
---|
| 4289 | delete exporter;
|
---|
| 4290 | }
|
---|
| 4291 |
|
---|
| 4292 |
|
---|
| 4293 | cout << "finished" << endl;
|
---|
| 4294 | }
|
---|
| 4295 |
|
---|
[442] | 4296 | //-- visualization of the BSP splits
|
---|
| 4297 | bool exportSplits = false;
|
---|
[1004] | 4298 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4299 |
|
---|
[442] | 4300 | if (exportSplits)
|
---|
| 4301 | {
|
---|
| 4302 | cout << "exporting splits ... ";
|
---|
[485] | 4303 | ExportSplits(objects, visRays);
|
---|
[442] | 4304 | cout << "finished" << endl;
|
---|
| 4305 | }
|
---|
| 4306 |
|
---|
[542] | 4307 | //-- export single view cells
|
---|
[485] | 4308 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4309 | }
|
---|
| 4310 |
|
---|
[503] | 4311 |
|
---|
[485] | 4312 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4313 | const VssRayContainer &rays)
|
---|
[442] | 4314 | {
|
---|
| 4315 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4316 |
|
---|
[503] | 4317 | if (exporter)
|
---|
| 4318 | {
|
---|
| 4319 | Material m;
|
---|
[442] | 4320 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4321 | exporter->SetForcedMaterial(m);
|
---|
| 4322 | exporter->SetWireframe();
|
---|
[503] | 4323 |
|
---|
[448] | 4324 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4325 |
|
---|
| 4326 | // take forced material, else big scenes cannot be viewed
|
---|
| 4327 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4328 | exporter->SetForcedMaterial(m);
|
---|
| 4329 | exporter->SetFilled();
|
---|
| 4330 |
|
---|
| 4331 | exporter->ResetForcedMaterial();
|
---|
[503] | 4332 |
|
---|
[442] | 4333 | // export rays
|
---|
[485] | 4334 | if (mExportRays)
|
---|
| 4335 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4336 |
|
---|
[485] | 4337 | if (mExportGeometry)
|
---|
[442] | 4338 | exporter->ExportGeometry(objects);
|
---|
| 4339 |
|
---|
| 4340 | delete exporter;
|
---|
| 4341 | }
|
---|
| 4342 | }
|
---|
| 4343 |
|
---|
[503] | 4344 |
|
---|
[485] | 4345 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4346 | const VssRayContainer &rays)
|
---|
[442] | 4347 | {
|
---|
[1020] | 4348 | int leafOut;
|
---|
| 4349 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[503] | 4350 |
|
---|
[442] | 4351 | ViewCell::NewMail();
|
---|
[503] | 4352 |
|
---|
[639] | 4353 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4354 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4355 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4356 |
|
---|
[694] | 4357 | const bool sortViewCells = true;
|
---|
[1021] | 4358 |
|
---|
[485] | 4359 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4360 | if (sortViewCells)
|
---|
[801] | 4361 | {
|
---|
| 4362 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 4363 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4364 | }
|
---|
| 4365 |
|
---|
[503] | 4366 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4367 |
|
---|
[639] | 4368 | int raysOut = 0;
|
---|
[587] | 4369 |
|
---|
[485] | 4370 | //-- some rays for output
|
---|
[478] | 4371 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4372 | {
|
---|
[478] | 4373 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4374 |
|
---|
[582] | 4375 | ViewCell *vc;
|
---|
[574] | 4376 |
|
---|
[694] | 4377 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4378 | vc = mViewCells[i];
|
---|
[574] | 4379 | else
|
---|
[639] | 4380 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4381 |
|
---|
[801] | 4382 | ObjectPvs pvs;
|
---|
| 4383 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4384 |
|
---|
[639] | 4385 | //bspLeaves[j]->Mail();
|
---|
[1020] | 4386 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
[639] | 4387 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4388 |
|
---|
[1121] | 4389 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc, mCountKdPvs) << endl;
|
---|
[587] | 4390 |
|
---|
[801] | 4391 | //-- export the sample rays
|
---|
[1020] | 4392 | if (mExportRays)
|
---|
[442] | 4393 | {
|
---|
[694] | 4394 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 4395 | if (1)
|
---|
[442] | 4396 | {
|
---|
[639] | 4397 | VssRayContainer vcRays;
|
---|
| 4398 | VssRayContainer collectRays;
|
---|
| 4399 |
|
---|
| 4400 | raysOut = min((int)rays.size(), 100);
|
---|
| 4401 |
|
---|
| 4402 | // collect intial view cells
|
---|
| 4403 | ViewCellContainer leaves;
|
---|
| 4404 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4405 |
|
---|
| 4406 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4407 |
|
---|
| 4408 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4409 | {
|
---|
[639] | 4410 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4411 |
|
---|
| 4412 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4413 |
|
---|
[639] | 4414 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4415 | {
|
---|
| 4416 | collectRays.push_back(*rit);
|
---|
| 4417 | }
|
---|
[574] | 4418 | }
|
---|
[639] | 4419 |
|
---|
| 4420 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4421 |
|
---|
| 4422 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4423 | {
|
---|
| 4424 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4425 |
|
---|
| 4426 | if (p < raysOut)
|
---|
| 4427 | vcRays.push_back(*rit);
|
---|
| 4428 | }
|
---|
[801] | 4429 |
|
---|
[1052] | 4430 | //Debug << "#rays: " << (int)vcRays.size() << endl;
|
---|
[1047] | 4431 |
|
---|
[639] | 4432 | //-- export rays piercing this view cell
|
---|
| 4433 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4434 | }
|
---|
[651] | 4435 |
|
---|
[694] | 4436 | // associate new rays with output view cell
|
---|
[1047] | 4437 | if (0)
|
---|
[639] | 4438 | {
|
---|
| 4439 | VssRayContainer vcRays;
|
---|
| 4440 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
[801] | 4441 |
|
---|
[639] | 4442 | // check whether we can add the current ray to the output rays
|
---|
| 4443 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4444 | {
|
---|
| 4445 | VssRay *ray = rays[k];
|
---|
| 4446 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4447 | {
|
---|
| 4448 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4449 |
|
---|
| 4450 | if (rayvc == vc)
|
---|
| 4451 | vcRays.push_back(ray);
|
---|
| 4452 | }
|
---|
| 4453 | }
|
---|
| 4454 |
|
---|
| 4455 | //-- export rays piercing this view cell
|
---|
| 4456 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4457 | }
|
---|
| 4458 |
|
---|
[442] | 4459 | }
|
---|
[639] | 4460 |
|
---|
[574] | 4461 |
|
---|
[1020] | 4462 | //-- export view cell geometry
|
---|
[478] | 4463 | exporter->SetWireframe();
|
---|
[442] | 4464 |
|
---|
[478] | 4465 | Material m;//= RandomMaterial();
|
---|
| 4466 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4467 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4468 |
|
---|
[580] | 4469 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 4470 |
|
---|
| 4471 | exporter->SetFilled();
|
---|
[503] | 4472 |
|
---|
[1020] | 4473 |
|
---|
[801] | 4474 | //-- export pvs
|
---|
[574] | 4475 | if (1)
|
---|
| 4476 | {
|
---|
[639] | 4477 | ObjectPvsMap::const_iterator oit,
|
---|
[801] | 4478 | oit_end = pvs.mEntries.end();
|
---|
[483] | 4479 |
|
---|
[801] | 4480 | Intersectable::NewMail();
|
---|
[580] | 4481 |
|
---|
[639] | 4482 | // output PVS of view cell
|
---|
[801] | 4483 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4484 | {
|
---|
| 4485 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4486 |
|
---|
[639] | 4487 | if (!intersect->Mailed())
|
---|
| 4488 | {
|
---|
[643] | 4489 | m = RandomMaterial();
|
---|
| 4490 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4491 |
|
---|
[639] | 4492 | exporter->ExportIntersectable(intersect);
|
---|
| 4493 | intersect->Mail();
|
---|
| 4494 | }
|
---|
[503] | 4495 | }
|
---|
[442] | 4496 | }
|
---|
[801] | 4497 |
|
---|
| 4498 | if (0)
|
---|
| 4499 | { // export scene geometry
|
---|
[643] | 4500 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4501 | exporter->SetForcedMaterial(m);
|
---|
| 4502 |
|
---|
[639] | 4503 | exporter->ExportGeometry(objects);
|
---|
| 4504 | }
|
---|
[503] | 4505 |
|
---|
[478] | 4506 | DEL_PTR(exporter);
|
---|
| 4507 | cout << "finished" << endl;
|
---|
[442] | 4508 | }
|
---|
[475] | 4509 |
|
---|
| 4510 | Debug << endl;
|
---|
[442] | 4511 | }
|
---|
| 4512 |
|
---|
| 4513 |
|
---|
[1021] | 4514 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4515 | {
|
---|
[1021] | 4516 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4517 |
|
---|
[1021] | 4518 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4519 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4520 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4521 | const Vector3 width = Vector3(w);
|
---|
| 4522 |
|
---|
| 4523 | PrVs testPrVs;
|
---|
| 4524 |
|
---|
| 4525 | if (exporter)
|
---|
| 4526 | {
|
---|
| 4527 | ViewCellContainer viewCells;
|
---|
| 4528 |
|
---|
| 4529 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4530 |
|
---|
[1021] | 4531 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4532 |
|
---|
[1021] | 4533 | exporter->SetWireframe();
|
---|
[482] | 4534 |
|
---|
[1021] | 4535 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4536 | exporter->ExportBox(tbox);
|
---|
| 4537 |
|
---|
| 4538 | exporter->SetFilled();
|
---|
[503] | 4539 |
|
---|
[1021] | 4540 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
| 4541 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
[564] | 4542 |
|
---|
[1021] | 4543 | //exporter->ResetForcedMaterial();
|
---|
| 4544 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
| 4545 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
[591] | 4546 |
|
---|
[1021] | 4547 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4548 | exporter->ExportGeometry(objects);
|
---|
[547] | 4549 |
|
---|
[1021] | 4550 | delete exporter;
|
---|
[482] | 4551 | }
|
---|
[1021] | 4552 | }
|
---|
[482] | 4553 |
|
---|
[547] | 4554 |
|
---|
[1021] | 4555 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4556 | ViewCellContainer &viewCells) const
|
---|
| 4557 | {
|
---|
| 4558 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4559 | }
|
---|
| 4560 |
|
---|
| 4561 |
|
---|
[1021] | 4562 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4563 | const Vector3 &termination,
|
---|
| 4564 | ViewCellContainer &viewcells)
|
---|
| 4565 | {
|
---|
| 4566 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4567 | }
|
---|
| 4568 |
|
---|
| 4569 |
|
---|
[979] | 4570 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4571 | {
|
---|
| 4572 | int numSamples;
|
---|
[991] | 4573 |
|
---|
[1004] | 4574 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4575 | cout << "samples" << numSamples << endl;
|
---|
| 4576 |
|
---|
| 4577 | vector<RenderCostSample> samples;
|
---|
| 4578 |
|
---|
| 4579 | if (!preprocessor->GetRenderer())
|
---|
| 4580 | return;
|
---|
| 4581 |
|
---|
[991] | 4582 | //start the from point queries
|
---|
[979] | 4583 | long startTime = GetTime();
|
---|
| 4584 | cout << "starting sampling of render cost ... ";
|
---|
| 4585 |
|
---|
[1001] | 4586 | preprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4587 |
|
---|
| 4588 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4589 |
|
---|
| 4590 |
|
---|
| 4591 | // counting the pvss
|
---|
| 4592 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4593 |
|
---|
[991] | 4594 | //std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4595 |
|
---|
[979] | 4596 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4597 | {
|
---|
| 4598 | RenderCostSample sample = *rit;
|
---|
[1001] | 4599 |
|
---|
[991] | 4600 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
| 4601 |
|
---|
| 4602 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4603 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
| 4604 |
|
---|
| 4605 | DEL_PTR(hMesh);
|
---|
| 4606 | #if 0
|
---|
| 4607 | if (!sampleMap.find(vc))
|
---|
| 4608 | sampleMap.insert(vc, sample.mVisibleObjects);
|
---|
| 4609 | else
|
---|
| 4610 | sampleMap[vc].Merge(Merge(sample.mVisibleObjects);
|
---|
| 4611 | #endif
|
---|
[979] | 4612 | }
|
---|
| 4613 | }
|
---|
| 4614 |
|
---|
| 4615 |
|
---|
[580] | 4616 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4617 | ViewCell *vc,
|
---|
[1047] | 4618 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 4619 | {
|
---|
[660] | 4620 | if (clipPlane)
|
---|
[591] | 4621 | {
|
---|
[1047] | 4622 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4623 |
|
---|
[591] | 4624 | ViewCellContainer leaves;
|
---|
| 4625 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4626 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4627 |
|
---|
| 4628 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4629 | {
|
---|
| 4630 | BspNodeGeometry geom;
|
---|
| 4631 |
|
---|
| 4632 | BspNodeGeometry front;
|
---|
| 4633 | BspNodeGeometry back;
|
---|
| 4634 |
|
---|
| 4635 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4636 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4637 |
|
---|
[1052] | 4638 | const float eps = 0.0001f;
|
---|
[1047] | 4639 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4640 |
|
---|
[710] | 4641 | if (cf == -1)
|
---|
[682] | 4642 | {
|
---|
| 4643 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4644 | }
|
---|
[710] | 4645 | else if (cf == 0)
|
---|
[684] | 4646 | {
|
---|
[682] | 4647 | geom.SplitGeometry(front,
|
---|
| 4648 | back,
|
---|
[1047] | 4649 | plane,
|
---|
[682] | 4650 | mViewSpaceBox,
|
---|
[710] | 4651 | eps);
|
---|
[682] | 4652 |
|
---|
[694] | 4653 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4654 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[801] | 4655 |
|
---|
[683] | 4656 | if (back.Valid())
|
---|
| 4657 | {
|
---|
[682] | 4658 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4659 | }
|
---|
[684] | 4660 | }
|
---|
[591] | 4661 | }
|
---|
| 4662 | }
|
---|
| 4663 | else
|
---|
| 4664 | {
|
---|
[801] | 4665 | // export mesh if available
|
---|
[1001] | 4666 | // TODO: some bug here?
|
---|
| 4667 | if (0 && vc->GetMesh())
|
---|
[801] | 4668 | {
|
---|
| 4669 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4670 | }
|
---|
| 4671 | else
|
---|
[1001] | 4672 | {
|
---|
[801] | 4673 | BspNodeGeometry geom;
|
---|
| 4674 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4675 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4676 | }
|
---|
[591] | 4677 | }
|
---|
[482] | 4678 | }
|
---|
| 4679 |
|
---|
| 4680 |
|
---|
| 4681 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4682 | {
|
---|
[580] | 4683 | ViewCellContainer leaves;
|
---|
| 4684 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4685 |
|
---|
| 4686 | int maxDist = 0;
|
---|
[580] | 4687 |
|
---|
[482] | 4688 | // compute max height difference
|
---|
[580] | 4689 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4690 | {
|
---|
[580] | 4691 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4692 | {
|
---|
| 4693 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4694 |
|
---|
[1001] | 4695 | if (i != j)
|
---|
| 4696 | {
|
---|
| 4697 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
| 4698 |
|
---|
| 4699 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4700 |
|
---|
| 4701 | if (dist > maxDist)
|
---|
| 4702 | maxDist = dist;
|
---|
| 4703 | }
|
---|
[482] | 4704 | }
|
---|
| 4705 | }
|
---|
[580] | 4706 |
|
---|
[492] | 4707 | return maxDist;
|
---|
| 4708 | }
|
---|
[482] | 4709 |
|
---|
[492] | 4710 |
|
---|
[879] | 4711 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4712 | {
|
---|
[1021] | 4713 | if (!ViewCellsConstructed())
|
---|
[508] | 4714 | return NULL;
|
---|
[572] | 4715 |
|
---|
| 4716 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4717 | return NULL;
|
---|
| 4718 |
|
---|
[879] | 4719 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4720 | }
|
---|
[503] | 4721 |
|
---|
| 4722 |
|
---|
| 4723 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4724 | {
|
---|
[726] | 4725 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4726 | BspNodeGeometry geom;
|
---|
[590] | 4727 |
|
---|
| 4728 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4729 |
|
---|
[1001] | 4730 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4731 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4732 |
|
---|
[503] | 4733 | vc->SetMesh(mesh);
|
---|
| 4734 | }
|
---|
[508] | 4735 |
|
---|
| 4736 |
|
---|
[532] | 4737 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4738 | {
|
---|
[535] | 4739 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4740 | }
|
---|
[551] | 4741 |
|
---|
| 4742 |
|
---|
[587] | 4743 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4744 | const bool createMesh)
|
---|
[551] | 4745 | {
|
---|
| 4746 | float area = 0;
|
---|
| 4747 | float volume = 0;
|
---|
| 4748 |
|
---|
[580] | 4749 | ViewCellContainer leaves;
|
---|
[582] | 4750 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4751 |
|
---|
| 4752 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4753 |
|
---|
[693] | 4754 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4755 | {
|
---|
| 4756 | BspNodeGeometry geom;
|
---|
[580] | 4757 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4758 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4759 |
|
---|
[719] | 4760 | const float lVol = geom.GetVolume();
|
---|
| 4761 | const float lArea = geom.GetArea();
|
---|
[693] | 4762 |
|
---|
| 4763 | //(*it)->SetVolume(vol);
|
---|
| 4764 | //(*it)->SetArea(area);
|
---|
| 4765 |
|
---|
| 4766 | area += lArea;
|
---|
| 4767 | volume += lVol;
|
---|
| 4768 |
|
---|
| 4769 | CreateMesh(*it);
|
---|
[551] | 4770 | }
|
---|
| 4771 |
|
---|
| 4772 | viewCell->SetVolume(volume);
|
---|
| 4773 | viewCell->SetArea(area);
|
---|
[563] | 4774 | }
|
---|
[575] | 4775 |
|
---|
| 4776 |
|
---|
[693] | 4777 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4778 | {
|
---|
| 4779 | ViewCellContainer leaves;
|
---|
| 4780 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4781 |
|
---|
| 4782 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4783 |
|
---|
| 4784 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4785 | float subdivVol = 0;
|
---|
| 4786 | float newVol = 0;
|
---|
| 4787 |
|
---|
| 4788 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4789 | {
|
---|
| 4790 | BspNodeGeometry geom;
|
---|
| 4791 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4792 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4793 |
|
---|
| 4794 | const float lVol = geom.GetVolume();
|
---|
| 4795 |
|
---|
| 4796 | newVol += lVol;
|
---|
| 4797 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4798 |
|
---|
[704] | 4799 | float thres = 0.9f;
|
---|
[697] | 4800 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4801 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4802 | }
|
---|
| 4803 |
|
---|
| 4804 | Debug << "exact volume: " << vol << endl;
|
---|
| 4805 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4806 | Debug << "new volume: " << newVol << endl;
|
---|
| 4807 | }
|
---|
| 4808 |
|
---|
| 4809 |
|
---|
[577] | 4810 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4811 | {
|
---|
| 4812 | // TODO: do I still need this here?
|
---|
[590] | 4813 | if (0)
|
---|
[693] | 4814 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4815 | }
|
---|
[575] | 4816 |
|
---|
[1021] | 4817 |
|
---|
| 4818 |
|
---|
| 4819 | /**************************************************************************/
|
---|
[1047] | 4820 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4821 | /**************************************************************************/
|
---|
| 4822 |
|
---|
| 4823 |
|
---|
| 4824 | VspOspViewCellsManager::VspOspViewCellsManager(VspTree *vspTree, OspTree *ospTree):
|
---|
| 4825 | ViewCellsManager(), mVspTree(vspTree), mOspTree(ospTree)
|
---|
[859] | 4826 | {
|
---|
[1027] | 4827 | mHierarchyManager = new HierarchyManager(*vspTree, *ospTree);
|
---|
| 4828 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
[1106] | 4829 |
|
---|
[1021] | 4830 | mVspTree->SetViewCellsManager(this);
|
---|
[1106] | 4831 | mOspTree->SetViewCellsManager(this);
|
---|
| 4832 |
|
---|
[1021] | 4833 | mVspTree->mViewCellsTree = mViewCellsTree;
|
---|
| 4834 | }
|
---|
[859] | 4835 |
|
---|
| 4836 |
|
---|
[1021] | 4837 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4838 | {
|
---|
[1027] | 4839 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 4840 | }
|
---|
| 4841 |
|
---|
| 4842 |
|
---|
| 4843 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4844 | {
|
---|
| 4845 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4846 | }
|
---|
| 4847 |
|
---|
| 4848 |
|
---|
| 4849 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4850 | {
|
---|
| 4851 | // view cells tree constructed
|
---|
| 4852 | if (!ViewCellsTreeConstructed())
|
---|
| 4853 | {
|
---|
| 4854 | mVspTree->CollectViewCells(mViewCells, false);
|
---|
| 4855 | }
|
---|
| 4856 | else
|
---|
| 4857 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4858 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4859 | }
|
---|
| 4860 | }
|
---|
| 4861 |
|
---|
| 4862 |
|
---|
| 4863 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4864 | {
|
---|
| 4865 | return mVspTree->GetRoot() != NULL;
|
---|
| 4866 | }
|
---|
| 4867 |
|
---|
| 4868 |
|
---|
| 4869 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4870 | {
|
---|
| 4871 | return new VspViewCell(mesh);
|
---|
| 4872 | }
|
---|
| 4873 |
|
---|
| 4874 |
|
---|
| 4875 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4876 | const VssRayContainer &rays)
|
---|
| 4877 | {
|
---|
| 4878 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4879 |
|
---|
[1074] | 4880 | // skip rest if view cells were already constructed
|
---|
[1021] | 4881 | if (ViewCellsConstructed())
|
---|
| 4882 | return 0;
|
---|
| 4883 |
|
---|
| 4884 | int sampleContributions = 0;
|
---|
| 4885 |
|
---|
| 4886 | VssRayContainer sampleRays;
|
---|
| 4887 |
|
---|
| 4888 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4889 |
|
---|
| 4890 | VssRayContainer constructionRays;
|
---|
| 4891 | VssRayContainer savedRays;
|
---|
| 4892 |
|
---|
| 4893 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4894 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4895 |
|
---|
| 4896 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4897 |
|
---|
| 4898 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
| 4899 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4900 |
|
---|
| 4901 | long startTime;
|
---|
| 4902 |
|
---|
[1122] | 4903 | //mHierarchyManager->Construct2(constructionRays, objects, &mViewSpaceBox);
|
---|
| 4904 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1027] | 4905 |
|
---|
[1021] | 4906 | //-- stats
|
---|
| 4907 | Debug << mVspTree->GetStatistics() << endl;
|
---|
| 4908 |
|
---|
| 4909 | ResetViewCells();
|
---|
| 4910 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4911 |
|
---|
| 4912 |
|
---|
| 4913 | startTime = GetTime();
|
---|
| 4914 |
|
---|
| 4915 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4916 |
|
---|
| 4917 | // recast rest of rays
|
---|
| 4918 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4919 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4920 |
|
---|
| 4921 | cout << "finished" << endl;
|
---|
| 4922 |
|
---|
| 4923 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4924 | << " secs" << endl;
|
---|
| 4925 |
|
---|
| 4926 | cout << "construction finished" << endl;
|
---|
| 4927 |
|
---|
| 4928 | // real meshes are contructed at this stage
|
---|
| 4929 | if (0)
|
---|
| 4930 | {
|
---|
| 4931 | cout << "finalizing view cells ... ";
|
---|
| 4932 | FinalizeViewCells(true);
|
---|
| 4933 | cout << "finished" << endl;
|
---|
| 4934 | }
|
---|
| 4935 |
|
---|
| 4936 | return sampleContributions;
|
---|
| 4937 | }
|
---|
| 4938 |
|
---|
| 4939 |
|
---|
| 4940 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4941 | const VssRayContainer &rays)
|
---|
| 4942 | {
|
---|
| 4943 | if (!ViewCellsConstructed())
|
---|
| 4944 | {
|
---|
| 4945 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 4946 | return 0;
|
---|
| 4947 | }
|
---|
| 4948 |
|
---|
| 4949 |
|
---|
[1027] | 4950 | // take this step only if
|
---|
| 4951 | // view cells already constructed before post processing step
|
---|
| 4952 | // (e.g., because they were loaded)
|
---|
[1021] | 4953 | if (mViewCellsFinished)
|
---|
| 4954 | {
|
---|
| 4955 | FinalizeViewCells(true);
|
---|
| 4956 | EvaluateViewCellsStats();
|
---|
| 4957 |
|
---|
| 4958 | return 0;
|
---|
| 4959 | }
|
---|
| 4960 |
|
---|
| 4961 | // check if new view cells turned invalid
|
---|
| 4962 | int minPvs, maxPvs;
|
---|
| 4963 |
|
---|
| 4964 | if (0)
|
---|
| 4965 | {
|
---|
| 4966 | minPvs = mMinPvsSize;
|
---|
| 4967 | maxPvs = mMaxPvsSize;
|
---|
| 4968 | }
|
---|
| 4969 | else
|
---|
| 4970 | {
|
---|
| 4971 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 4972 | maxPvs = mMaxPvsSize;
|
---|
| 4973 | }
|
---|
| 4974 |
|
---|
| 4975 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4976 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4977 |
|
---|
| 4978 | SetValidity(minPvs, maxPvs);
|
---|
| 4979 |
|
---|
| 4980 |
|
---|
| 4981 | // area has to be recomputed
|
---|
| 4982 | mTotalAreaValid = false;
|
---|
| 4983 | VssRayContainer postProcessRays;
|
---|
| 4984 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4985 |
|
---|
| 4986 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 4987 |
|
---|
| 4988 |
|
---|
| 4989 | // should maybe be done here to allow merge working with area or volume
|
---|
| 4990 | // and to correct the rendering statistics
|
---|
| 4991 | if (0) FinalizeViewCells(false);
|
---|
| 4992 |
|
---|
| 4993 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4994 | ViewCell *root = ConstructSpatialMergeTree(mVspTree->GetRoot());
|
---|
| 4995 | mViewCellsTree->SetRoot(root);
|
---|
| 4996 |
|
---|
| 4997 | // compute pvs
|
---|
| 4998 | ObjectPvs pvs;
|
---|
| 4999 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5000 |
|
---|
| 5001 |
|
---|
| 5002 | //-- render simulation after merge + refine
|
---|
| 5003 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 5004 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5005 | SimulationStatistics ss;
|
---|
| 5006 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[859] | 5007 |
|
---|
| 5008 |
|
---|
[1021] | 5009 | cout << " finished" << endl;
|
---|
| 5010 | cout << ss << endl;
|
---|
| 5011 | Debug << ss << endl;
|
---|
[859] | 5012 |
|
---|
| 5013 |
|
---|
[1021] | 5014 | //-- compression
|
---|
| 5015 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 5016 | {
|
---|
| 5017 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 5018 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 5019 |
|
---|
[1021] | 5020 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 5021 |
|
---|
[1021] | 5022 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 5023 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5024 | }
|
---|
[1021] | 5025 |
|
---|
| 5026 | // compute final meshes and volume / area
|
---|
| 5027 | if (1) FinalizeViewCells(true);
|
---|
| 5028 |
|
---|
| 5029 | // write view cells to disc
|
---|
| 5030 | if (mExportViewCells)
|
---|
| 5031 | {
|
---|
| 5032 | char filename[100];
|
---|
| 5033 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 5034 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 5035 | }
|
---|
| 5036 |
|
---|
| 5037 |
|
---|
| 5038 | return 0;
|
---|
[859] | 5039 | }
|
---|
| 5040 |
|
---|
[1021] | 5041 |
|
---|
| 5042 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5043 | {
|
---|
[1021] | 5044 | return VSP_OSP;
|
---|
| 5045 | }
|
---|
[859] | 5046 |
|
---|
[1021] | 5047 |
|
---|
| 5048 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5049 | {
|
---|
| 5050 | // terminate recursion
|
---|
| 5051 | if (root->IsLeaf())
|
---|
| 5052 | {
|
---|
| 5053 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5054 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5055 | return leaf->GetViewCell();
|
---|
| 5056 | }
|
---|
| 5057 |
|
---|
| 5058 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5059 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5060 |
|
---|
| 5061 | // evaluate merge cost for priority traversal
|
---|
| 5062 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 5063 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5064 |
|
---|
| 5065 | float volume = 0;
|
---|
| 5066 |
|
---|
| 5067 | VspNode *front = interior->GetFront();
|
---|
| 5068 | VspNode *back = interior->GetBack();
|
---|
| 5069 |
|
---|
| 5070 |
|
---|
| 5071 | ObjectPvs frontPvs, backPvs;
|
---|
| 5072 |
|
---|
| 5073 | //-- recursivly compute child hierarchies
|
---|
| 5074 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5075 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5076 |
|
---|
| 5077 |
|
---|
| 5078 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5079 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5080 |
|
---|
| 5081 | volume += backVc->GetVolume();
|
---|
| 5082 | volume += frontVc->GetVolume();
|
---|
| 5083 |
|
---|
| 5084 | viewCellInterior->SetVolume(volume);
|
---|
| 5085 |
|
---|
| 5086 | return viewCellInterior;
|
---|
| 5087 | }
|
---|
| 5088 |
|
---|
| 5089 |
|
---|
| 5090 |
|
---|
| 5091 | void VspOspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 5092 | {
|
---|
| 5093 | // terminate traversal
|
---|
| 5094 | if (root->IsLeaf())
|
---|
| 5095 | {
|
---|
| 5096 | pvs = root->GetPvs();
|
---|
| 5097 | SetScalarPvsSize(root, root->GetPvs().GetSize());
|
---|
| 5098 |
|
---|
[997] | 5099 | return;
|
---|
[1021] | 5100 | }
|
---|
| 5101 |
|
---|
| 5102 | //-- interior node => propagate pvs up
|
---|
| 5103 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 5104 | interior->GetPvs().Clear();
|
---|
| 5105 | pvs.Clear();
|
---|
| 5106 | vector<ObjectPvs> pvsList;
|
---|
[997] | 5107 |
|
---|
[1021] | 5108 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[904] | 5109 |
|
---|
[1021] | 5110 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 5111 | {
|
---|
| 5112 | ObjectPvs objPvs;
|
---|
| 5113 |
|
---|
| 5114 | //-- recursivly compute child pvss
|
---|
| 5115 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
[904] | 5116 |
|
---|
[1021] | 5117 | // store pvs in vector
|
---|
| 5118 | pvsList.push_back(objPvs);
|
---|
| 5119 | }
|
---|
| 5120 |
|
---|
| 5121 | #if 1
|
---|
| 5122 | Intersectable::NewMail();
|
---|
| 5123 |
|
---|
| 5124 | //-- faster way of computing pvs:
|
---|
| 5125 | // construct merged pvs by adding
|
---|
| 5126 | // and only those of the next pvs which were not mailed.
|
---|
| 5127 | // note: sumpdf is not correct!!
|
---|
| 5128 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 5129 |
|
---|
| 5130 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 5131 | {
|
---|
| 5132 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
[904] | 5133 |
|
---|
[1021] | 5134 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 5135 | {
|
---|
| 5136 | Intersectable *intersect = (*pit).first;
|
---|
| 5137 |
|
---|
| 5138 | if (!intersect->Mailed())
|
---|
| 5139 | {
|
---|
| 5140 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 5141 | intersect->Mail();
|
---|
| 5142 | }
|
---|
| 5143 | }
|
---|
| 5144 | }
|
---|
| 5145 |
|
---|
| 5146 | // store pvs in this node
|
---|
| 5147 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 5148 | {
|
---|
| 5149 | interior->SetPvs(pvs);
|
---|
| 5150 | }
|
---|
[904] | 5151 |
|
---|
[1021] | 5152 | // set new pvs size
|
---|
| 5153 | SetScalarPvsSize(interior, pvs.GetSize());
|
---|
[904] | 5154 |
|
---|
[1021] | 5155 |
|
---|
| 5156 | #else
|
---|
| 5157 |
|
---|
| 5158 | // really merge cells: slow put sumpdf is correct
|
---|
| 5159 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 5160 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 5161 | #endif
|
---|
| 5162 | }
|
---|
| 5163 |
|
---|
| 5164 |
|
---|
| 5165 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5166 | {
|
---|
| 5167 | if (!ViewCellsConstructed())
|
---|
| 5168 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5169 |
|
---|
| 5170 | // TODO: set reasonable limit
|
---|
| 5171 | const int limit = 20;
|
---|
| 5172 |
|
---|
| 5173 | for (int i = 0; i < limit; ++ i)
|
---|
| 5174 | {
|
---|
| 5175 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5176 |
|
---|
[1021] | 5177 | if (mVspTree->ViewPointValid(viewPoint))
|
---|
| 5178 | {
|
---|
| 5179 | return true;
|
---|
| 5180 | }
|
---|
[904] | 5181 | }
|
---|
[859] | 5182 |
|
---|
[1021] | 5183 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5184 | return false;
|
---|
[884] | 5185 | }
|
---|
| 5186 |
|
---|
| 5187 |
|
---|
[1027] | 5188 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5189 | ViewCell *vc,
|
---|
[1047] | 5190 | const AxisAlignedPlane *clipPlane) const
|
---|
[1027] | 5191 | {
|
---|
| 5192 | ViewCellContainer leaves;
|
---|
| 5193 |
|
---|
| 5194 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5195 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5196 |
|
---|
[1047] | 5197 | Plane3 plane;
|
---|
| 5198 |
|
---|
| 5199 | if (clipPlane)
|
---|
| 5200 | plane = clipPlane->GetPlane();
|
---|
| 5201 |
|
---|
[1027] | 5202 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5203 | {
|
---|
| 5204 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
| 5205 | VspLeaf *l = vspVc->mLeaf;
|
---|
| 5206 |
|
---|
| 5207 | const AxisAlignedBox3 box = mVspTree->GetBBox(vspVc->mLeaf);
|
---|
[1047] | 5208 |
|
---|
| 5209 | if (clipPlane)
|
---|
| 5210 | {
|
---|
| 5211 | if (box.Side(plane) == -1)
|
---|
| 5212 | exporter->ExportBox(box);
|
---|
| 5213 | else if (box.Side(plane) == 0)
|
---|
| 5214 | {
|
---|
| 5215 | AxisAlignedBox3 fbox, bbox;
|
---|
[1027] | 5216 |
|
---|
[1047] | 5217 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
| 5218 |
|
---|
| 5219 | exporter->ExportBox(bbox);
|
---|
| 5220 | }
|
---|
| 5221 | }
|
---|
| 5222 | else
|
---|
| 5223 | {
|
---|
[1027] | 5224 | exporter->ExportBox(box);
|
---|
[1047] | 5225 | }
|
---|
[1027] | 5226 | }
|
---|
| 5227 | }
|
---|
| 5228 |
|
---|
| 5229 |
|
---|
[1021] | 5230 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5231 | {
|
---|
| 5232 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5233 | // validy update in preprocessor for all managers)
|
---|
| 5234 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5235 |
|
---|
[1021] | 5236 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5237 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5238 | }
|
---|
| 5239 |
|
---|
| 5240 |
|
---|
| 5241 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5242 | const VssRayContainer &sampleRays)
|
---|
[859] | 5243 | {
|
---|
[997] | 5244 | if (!ViewCellsConstructed())
|
---|
| 5245 | return;
|
---|
[1027] | 5246 |
|
---|
[1021] | 5247 | VssRayContainer visRays;
|
---|
| 5248 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5249 |
|
---|
[1021] | 5250 | if (1)
|
---|
[1047] | 5251 | {
|
---|
[1106] | 5252 | //-- export final view cells
|
---|
| 5253 |
|
---|
[1047] | 5254 | // hack pvs
|
---|
[1021] | 5255 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5256 | mColorCode = 0;
|
---|
[1021] | 5257 |
|
---|
| 5258 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5259 |
|
---|
| 5260 | if (exporter)
|
---|
| 5261 | {
|
---|
| 5262 | cout << "exporting view cells after post process ... ";
|
---|
[859] | 5263 |
|
---|
[1021] | 5264 | if (0)
|
---|
| 5265 | {
|
---|
| 5266 | // export view space box
|
---|
| 5267 | exporter->SetWireframe();
|
---|
| 5268 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 5269 | exporter->SetFilled();
|
---|
| 5270 | }
|
---|
[859] | 5271 |
|
---|
[1021] | 5272 | if (mExportGeometry)
|
---|
| 5273 | {
|
---|
| 5274 | exporter->ExportGeometry(objects);
|
---|
| 5275 | }
|
---|
[859] | 5276 |
|
---|
[1021] | 5277 | // export rays
|
---|
[1072] | 5278 | if (0 && mExportRays)
|
---|
[1021] | 5279 | {
|
---|
| 5280 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5281 | }
|
---|
| 5282 |
|
---|
| 5283 | //exporter->SetFilled();
|
---|
| 5284 |
|
---|
| 5285 | // HACK: export without clip plane
|
---|
[1052] | 5286 | const bool b = mUseClipPlaneForViz;
|
---|
[1106] | 5287 | if (0) mUseClipPlaneForViz = false;
|
---|
[1021] | 5288 |
|
---|
| 5289 | ExportViewCellsForViz(exporter);
|
---|
| 5290 |
|
---|
[1052] | 5291 | mUseClipPlaneForViz = b;
|
---|
[1021] | 5292 | delete exporter;
|
---|
| 5293 |
|
---|
| 5294 | cout << "finished" << endl;
|
---|
| 5295 | }
|
---|
| 5296 |
|
---|
| 5297 | mColorCode = savedColorCode;
|
---|
| 5298 | }
|
---|
| 5299 |
|
---|
[1106] | 5300 | if (1)
|
---|
| 5301 | {
|
---|
| 5302 | //-- export final object partition
|
---|
| 5303 | Exporter *exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5304 |
|
---|
| 5305 | if (exporter)
|
---|
| 5306 | {
|
---|
| 5307 | cout << "exporting object space partition ... ";
|
---|
| 5308 |
|
---|
[1107] | 5309 | if (0 && mExportGeometry)
|
---|
[1106] | 5310 | {
|
---|
| 5311 | exporter->ExportGeometry(objects);
|
---|
| 5312 | }
|
---|
| 5313 |
|
---|
| 5314 | // export rays
|
---|
| 5315 | if (0 && mExportRays)
|
---|
| 5316 | {
|
---|
| 5317 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5318 | }
|
---|
| 5319 |
|
---|
| 5320 | exporter->SetWireframe();
|
---|
[1121] | 5321 |
|
---|
| 5322 | const int savedColorCode = mColorCode;
|
---|
| 5323 | const int maxPvs = 200;//mOspTree.GetStatistics().maxPvs;
|
---|
[1106] | 5324 |
|
---|
[1121] | 5325 | exporter->ExportOspTree(*mOspTree, mColorCode == 0 ? 0 : maxPvs);
|
---|
| 5326 |
|
---|
[1106] | 5327 | delete exporter;
|
---|
| 5328 |
|
---|
| 5329 | cout << "finished" << endl;
|
---|
| 5330 | }
|
---|
| 5331 | }
|
---|
| 5332 |
|
---|
[1021] | 5333 | //-- export single view cells
|
---|
[1074] | 5334 | ExportPvs(objects, visRays);
|
---|
[859] | 5335 | }
|
---|
| 5336 |
|
---|
[1021] | 5337 |
|
---|
[1074] | 5338 | void VspOspViewCellsManager::ExportPvs(const ObjectContainer &objects,
|
---|
| 5339 | const VssRayContainer &rays)
|
---|
[697] | 5340 | {
|
---|
[1021] | 5341 | int leafOut;
|
---|
| 5342 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[580] | 5343 |
|
---|
[1021] | 5344 | ViewCell::NewMail();
|
---|
| 5345 |
|
---|
| 5346 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5347 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5348 | Debug << "\nOutput view cells: " << endl;
|
---|
| 5349 |
|
---|
| 5350 | const bool sortViewCells = true;
|
---|
| 5351 |
|
---|
| 5352 | // sort view cells to visualize the largest view cells
|
---|
| 5353 | if (sortViewCells)
|
---|
[697] | 5354 | {
|
---|
[1021] | 5355 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 5356 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5357 | }
|
---|
| 5358 |
|
---|
| 5359 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 5360 |
|
---|
| 5361 | int raysOut = 0;
|
---|
| 5362 |
|
---|
| 5363 | //-- some rays for output
|
---|
| 5364 | for (int i = 0; i < limit; ++ i)
|
---|
| 5365 | {
|
---|
| 5366 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 5367 |
|
---|
| 5368 | ViewCell *vc;
|
---|
[704] | 5369 |
|
---|
[1021] | 5370 | if (sortViewCells) // largest view cell pvs first
|
---|
| 5371 | vc = mViewCells[i];
|
---|
[1074] | 5372 | else // random view cell
|
---|
[1021] | 5373 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[704] | 5374 |
|
---|
[1021] | 5375 | ObjectPvs pvs;
|
---|
| 5376 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5377 |
|
---|
[1021] | 5378 | //bspLeaves[j]->Mail();
|
---|
| 5379 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
| 5380 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5381 |
|
---|
[1121] | 5382 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc, mCountKdPvs) << endl;
|
---|
[1021] | 5383 |
|
---|
| 5384 | //-- export the sample rays
|
---|
[1074] | 5385 | if (1 || mExportRays)
|
---|
[1021] | 5386 | {
|
---|
| 5387 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 5388 | if (1)
|
---|
[1021] | 5389 | {
|
---|
| 5390 | VssRayContainer vcRays;
|
---|
| 5391 | VssRayContainer collectRays;
|
---|
| 5392 |
|
---|
| 5393 | raysOut = min((int)rays.size(), 100);
|
---|
| 5394 |
|
---|
| 5395 | // collect intial view cells
|
---|
| 5396 | ViewCellContainer leaves;
|
---|
| 5397 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5398 |
|
---|
| 5399 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5400 |
|
---|
| 5401 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5402 | {
|
---|
[1047] | 5403 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
|
---|
[1021] | 5404 |
|
---|
| 5405 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5406 |
|
---|
| 5407 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5408 | {
|
---|
| 5409 | collectRays.push_back(*rit);
|
---|
| 5410 | }
|
---|
| 5411 | }
|
---|
| 5412 |
|
---|
| 5413 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 5414 |
|
---|
| 5415 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5416 | {
|
---|
| 5417 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5418 |
|
---|
| 5419 | if (p < raysOut)
|
---|
| 5420 | vcRays.push_back(*rit);
|
---|
| 5421 | }
|
---|
| 5422 |
|
---|
| 5423 | //-- export rays piercing this view cell
|
---|
| 5424 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
| 5425 | }
|
---|
| 5426 |
|
---|
| 5427 | // associate new rays with output view cell
|
---|
[1047] | 5428 | if (0)
|
---|
[1021] | 5429 | {
|
---|
| 5430 | VssRayContainer vcRays;
|
---|
| 5431 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 5432 |
|
---|
| 5433 | // check whether we can add the current ray to the output rays
|
---|
| 5434 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 5435 | {
|
---|
| 5436 | VssRay *ray = rays[k];
|
---|
| 5437 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 5438 | {
|
---|
| 5439 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 5440 |
|
---|
| 5441 | if (rayvc == vc)
|
---|
| 5442 | vcRays.push_back(ray);
|
---|
| 5443 | }
|
---|
| 5444 | }
|
---|
| 5445 |
|
---|
| 5446 | //-- export rays piercing this view cell
|
---|
| 5447 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 5448 | }
|
---|
| 5449 |
|
---|
| 5450 | }
|
---|
| 5451 |
|
---|
| 5452 |
|
---|
| 5453 | //-- export view cell geometry
|
---|
[1121] | 5454 |
|
---|
[697] | 5455 | exporter->SetWireframe();
|
---|
| 5456 |
|
---|
[1021] | 5457 | Material m;//= RandomMaterial();
|
---|
| 5458 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5459 | exporter->SetForcedMaterial(m);
|
---|
| 5460 |
|
---|
| 5461 | ExportViewCellGeometry(exporter, vc);
|
---|
| 5462 |
|
---|
[697] | 5463 | exporter->SetFilled();
|
---|
| 5464 |
|
---|
[705] | 5465 |
|
---|
[1021] | 5466 | if (1)
|
---|
[1074] | 5467 | { //-- export pvs
|
---|
[1108] | 5468 |
|
---|
[1021] | 5469 | ObjectPvsMap::const_iterator oit,
|
---|
| 5470 | oit_end = pvs.mEntries.end();
|
---|
[704] | 5471 |
|
---|
[1021] | 5472 | Intersectable::NewMail();
|
---|
[697] | 5473 |
|
---|
[1074] | 5474 | vector<KdLeaf *> kdLeaves;
|
---|
| 5475 |
|
---|
| 5476 | KdLeaf::NewMail();
|
---|
| 5477 |
|
---|
| 5478 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 5479 | exporter->SetForcedMaterial(m);
|
---|
| 5480 |
|
---|
| 5481 | // find kd nodes
|
---|
[1021] | 5482 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[1074] | 5483 | {
|
---|
[1108] | 5484 | // exportŽ"original" pvs
|
---|
[1074] | 5485 | Intersectable *obj = (*oit).first;
|
---|
[1021] | 5486 |
|
---|
[1074] | 5487 | if (1 && !obj->Mailed())
|
---|
[1021] | 5488 | {
|
---|
[1074] | 5489 | exporter->ExportIntersectable(obj);
|
---|
| 5490 | obj->Mail();
|
---|
| 5491 | }
|
---|
[1021] | 5492 |
|
---|
[1074] | 5493 | // collect kd leaves
|
---|
| 5494 | set<KdLeaf *>::const_iterator kdit, kdit_end = obj->mKdLeaves.end();
|
---|
| 5495 |
|
---|
| 5496 | for (kdit = obj->mKdLeaves.begin(); kdit != kdit_end; ++ kdit)
|
---|
| 5497 | {
|
---|
| 5498 | KdLeaf *kdleaf = *kdit;
|
---|
| 5499 |
|
---|
| 5500 | if (!kdleaf->Mailed())
|
---|
| 5501 | {
|
---|
| 5502 | kdleaf->Mail();
|
---|
| 5503 | kdLeaves.push_back(kdleaf);
|
---|
| 5504 | }
|
---|
[1021] | 5505 | }
|
---|
| 5506 | }
|
---|
[1074] | 5507 |
|
---|
| 5508 | m.mDiffuseColor = RgbColor(0, 0, 1);
|
---|
[1021] | 5509 | exporter->SetForcedMaterial(m);
|
---|
| 5510 |
|
---|
[1108] | 5511 | //-- export kd node pvs
|
---|
[1074] | 5512 | Intersectable::NewMail();
|
---|
| 5513 |
|
---|
| 5514 | vector<KdLeaf *>::const_iterator kdit, kdit_end = kdLeaves.end();
|
---|
| 5515 |
|
---|
| 5516 | for (kdit = kdLeaves.begin(); kdit != kdit_end; ++ kdit)
|
---|
| 5517 | {
|
---|
| 5518 | KdLeaf *kdleaf = *kdit;
|
---|
| 5519 |
|
---|
| 5520 | //-- export kd node
|
---|
| 5521 | /*exporter->SetWireframe();
|
---|
| 5522 | exporter->ExportBox(mKdTree->GetBox(kdleaf));
|
---|
| 5523 | exporter->SetFilled();*/
|
---|
| 5524 |
|
---|
| 5525 | ObjectContainer::const_iterator oit, oit_end = kdleaf->mObjects.end();
|
---|
| 5526 |
|
---|
| 5527 | for (oit = kdleaf->mObjects.begin(); oit != oit_end; ++ oit)
|
---|
| 5528 | {
|
---|
| 5529 | Intersectable *obj = *oit;
|
---|
| 5530 |
|
---|
| 5531 | if (!obj->Mailed())
|
---|
| 5532 | {
|
---|
| 5533 | exporter->ExportIntersectable(obj);
|
---|
| 5534 | obj->Mail();
|
---|
| 5535 | }
|
---|
| 5536 | }
|
---|
| 5537 | }
|
---|
[1021] | 5538 | }
|
---|
[1074] | 5539 |
|
---|
[1021] | 5540 | DEL_PTR(exporter);
|
---|
| 5541 | cout << "finished" << endl;
|
---|
[697] | 5542 | }
|
---|
[1021] | 5543 |
|
---|
| 5544 | Debug << endl;
|
---|
[697] | 5545 | }
|
---|
| 5546 |
|
---|
| 5547 |
|
---|
[1021] | 5548 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5549 | ViewCellContainer &viewCells) const
|
---|
| 5550 | {
|
---|
| 5551 | return mVspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 5552 | }
|
---|
[580] | 5553 |
|
---|
[1021] | 5554 |
|
---|
| 5555 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5556 | const Vector3 &termination,
|
---|
| 5557 | ViewCellContainer &viewcells)
|
---|
| 5558 | {
|
---|
| 5559 | return mVspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 5560 | }
|
---|
| 5561 |
|
---|
| 5562 |
|
---|
| 5563 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5564 | const bool exportPvs,
|
---|
| 5565 | const ObjectContainer &objects)
|
---|
| 5566 | {
|
---|
| 5567 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5568 | return false;
|
---|
| 5569 |
|
---|
| 5570 | cout << "exporting view cells to xml ... ";
|
---|
| 5571 |
|
---|
| 5572 | #if ZIPPED_VIEWCELLS
|
---|
| 5573 | ogzstream stream(filename.c_str());
|
---|
| 5574 | #else
|
---|
| 5575 | std::ofstream stream(filename.c_str());
|
---|
| 5576 | #endif
|
---|
| 5577 |
|
---|
| 5578 | // for output we need unique ids for each view cell
|
---|
| 5579 | CreateUniqueViewCellIds();
|
---|
| 5580 |
|
---|
| 5581 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5582 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5583 |
|
---|
| 5584 | //-- the view space bounding box
|
---|
| 5585 | stream << "<ViewSpaceBox"
|
---|
| 5586 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 5587 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 5588 |
|
---|
| 5589 |
|
---|
| 5590 | //-- export bounding boxes
|
---|
| 5591 | stream << "<BoundingBoxes>" << endl;
|
---|
| 5592 |
|
---|
| 5593 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 5594 |
|
---|
| 5595 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
[580] | 5596 | {
|
---|
[1021] | 5597 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 5598 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 5599 |
|
---|
| 5600 | //-- the bounding boxes
|
---|
| 5601 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 5602 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 5603 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[580] | 5604 | }
|
---|
[1021] | 5605 |
|
---|
| 5606 | stream << "</BoundingBoxes>" << endl;
|
---|
| 5607 |
|
---|
| 5608 |
|
---|
| 5609 | //-- export the view cells and the pvs
|
---|
[1027] | 5610 | stream << "<HierarchyType name=\"vspTree\" />" << endl;
|
---|
[1021] | 5611 |
|
---|
| 5612 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5613 |
|
---|
| 5614 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5615 |
|
---|
| 5616 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5617 |
|
---|
| 5618 | stream << "</ViewCells>" << endl;
|
---|
| 5619 |
|
---|
| 5620 |
|
---|
| 5621 | //-- export the spatial hierarchy
|
---|
| 5622 |
|
---|
| 5623 | // the type of the view cells hierarchy
|
---|
| 5624 | stream << "<Hierarchy>" << endl;
|
---|
| 5625 | mVspTree->Export(stream);
|
---|
| 5626 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 5627 |
|
---|
| 5628 | stream << "</VisibilitySolution>" << endl;
|
---|
| 5629 |
|
---|
| 5630 |
|
---|
| 5631 | stream.close();
|
---|
| 5632 | cout << "finished" << endl;
|
---|
| 5633 |
|
---|
| 5634 | return true;
|
---|
| 5635 | }
|
---|
| 5636 |
|
---|
| 5637 |
|
---|
| 5638 |
|
---|
[1027] | 5639 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5640 | const bool active) const
|
---|
[1021] | 5641 | {
|
---|
| 5642 | if (!ViewCellsConstructed())
|
---|
| 5643 | return NULL;
|
---|
| 5644 |
|
---|
| 5645 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5646 | return NULL;
|
---|
| 5647 |
|
---|
| 5648 | return mVspTree->GetViewCell(point, active);
|
---|
| 5649 | }
|
---|
| 5650 |
|
---|
| 5651 |
|
---|
| 5652 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5653 | {
|
---|
| 5654 | // matt: TODO
|
---|
| 5655 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5656 |
|
---|
| 5657 | ViewCellContainer leaves;
|
---|
| 5658 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5659 |
|
---|
| 5660 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5661 |
|
---|
| 5662 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5663 | {
|
---|
| 5664 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5665 | const AxisAlignedBox3 box = mVspTree->GetBBox(leaf);
|
---|
| 5666 |
|
---|
| 5667 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5668 | }
|
---|
| 5669 |
|
---|
[1021] | 5670 | vc->SetMesh(mesh);
|
---|
| 5671 | }
|
---|
| 5672 |
|
---|
| 5673 |
|
---|
| 5674 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5675 | {
|
---|
| 5676 | // matt: TODO
|
---|
| 5677 | return 0;
|
---|
| 5678 | }
|
---|
| 5679 |
|
---|
| 5680 |
|
---|
| 5681 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5682 | const bool createMesh)
|
---|
| 5683 | {
|
---|
| 5684 | float area = 0;
|
---|
| 5685 | float volume = 0;
|
---|
| 5686 |
|
---|
| 5687 | ViewCellContainer leaves;
|
---|
| 5688 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5689 |
|
---|
| 5690 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5691 |
|
---|
| 5692 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5693 | {
|
---|
[1027] | 5694 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5695 |
|
---|
| 5696 | const AxisAlignedBox3 box = mVspTree->GetBBox(leaf);
|
---|
[1021] | 5697 |
|
---|
[1027] | 5698 | const float lVol = box.GetVolume();
|
---|
| 5699 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5700 |
|
---|
| 5701 | //(*it)->SetVolume(vol);
|
---|
| 5702 | //(*it)->SetArea(area);
|
---|
| 5703 |
|
---|
| 5704 | area += lArea;
|
---|
| 5705 | volume += lVol;
|
---|
| 5706 |
|
---|
| 5707 | CreateMesh(*it);
|
---|
[580] | 5708 | }
|
---|
| 5709 |
|
---|
[1021] | 5710 | viewCell->SetVolume(volume);
|
---|
| 5711 | viewCell->SetArea(area);
|
---|
[580] | 5712 | }
|
---|
[1021] | 5713 |
|
---|
[580] | 5714 |
|
---|
[1021] | 5715 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5716 | {
|
---|
| 5717 | // TODO
|
---|
| 5718 | }
|
---|
[580] | 5719 |
|
---|
[1021] | 5720 |
|
---|
[580] | 5721 | //////////////////////////////////
|
---|
[1002] | 5722 | /*ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
[575] | 5723 | {
|
---|
| 5724 | //TODO
|
---|
| 5725 | return NULL;// new VspBspViewCellsManager();
|
---|
[1002] | 5726 | }*/
|
---|
[580] | 5727 |
|
---|
[860] | 5728 |
|
---|
[878] | 5729 | }
|
---|