[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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[1139] | 20 | #include "KdIntersectable.h"
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[440] | 21 |
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[1159] | 22 | // should not count origin object for sampling because it disturbs heuristics
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| 23 | #define COUNT_ORIGIN_OBJECTS 0
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[931] | 24 |
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[863] | 25 | namespace GtpVisibilityPreprocessor {
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[860] | 26 |
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| 27 |
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[712] | 28 | // HACK
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| 29 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 30 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 31 |
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[697] | 32 |
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| 33 |
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| 34 | template <typename T> class myless
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| 35 | {
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| 36 | public:
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| 37 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 38 | bool operator() (T v1, T v2) const
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| 39 | {
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| 40 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 41 | }
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| 42 | };
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| 43 |
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| 44 |
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[1004] | 45 | ViewCellsManager::ViewCellsManager():
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[480] | 46 | mRenderer(NULL),
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[574] | 47 | mInitialSamples(0),
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[440] | 48 | mConstructionSamples(0),
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| 49 | mPostProcessSamples(0),
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[470] | 50 | mVisualizationSamples(0),
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| 51 | mTotalAreaValid(false),
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[517] | 52 | mTotalArea(0.0f),
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[547] | 53 | mViewCellsFinished(false),
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[562] | 54 | mMaxPvsSize(9999999),
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[564] | 55 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 56 | mMaxPvsRatio(1.0),
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[1145] | 57 | mViewCellPvsIsUpdated(false),
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[1155] | 58 | mPreprocessor(NULL),
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| 59 | mStoreKdPvs(false)
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[440] | 60 | {
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[542] | 61 | mViewSpaceBox.Initialize();
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[482] | 62 | ParseEnvironment();
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[580] | 63 |
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[1004] | 64 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 65 | }
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| 66 |
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[517] | 67 |
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[482] | 68 | void ViewCellsManager::ParseEnvironment()
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| 69 | {
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[503] | 70 | // visualization stuff
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[1004] | 71 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 72 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 73 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 74 |
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[1004] | 75 | Environment::GetSingleton()->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 76 |
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[710] | 77 | // HACK
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| 78 | if (0)
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| 79 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 80 | else
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| 81 | mMinPvsSize = 0;
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| 82 |
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[1004] | 83 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 84 |
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[1004] | 85 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 86 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 87 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 88 |
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[1004] | 89 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 90 |
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[1004] | 91 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 92 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 93 |
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[1004] | 94 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 95 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 96 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 98 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 99 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 100 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 101 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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| 102 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 103 |
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[1004] | 104 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 105 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 106 |
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[1159] | 107 | Environment::GetSingleton()->GetBoolValue("ViewCells.storeKdPvs", mStoreKdPvs);
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[837] | 108 |
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[1159] | 109 |
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[664] | 110 | char buf[100];
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[1004] | 111 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 112 |
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[660] | 113 |
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[1020] | 114 | // sampling type for view cells construction samples
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[664] | 115 | if (strcmp(buf, "box") == 0)
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[722] | 116 | {
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[660] | 117 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 118 | }
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[664] | 119 | else if (strcmp(buf, "directional") == 0)
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[722] | 120 | {
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[660] | 121 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 122 | }
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[1020] | 123 | else if (strcmp(buf, "object_directional") == 0)
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| 124 | {
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| 125 | mSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 126 | }
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[1022] | 127 | /*else if (strcmp(buf, "interior") == 0)
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| 128 | {
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| 129 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 130 | }*/
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[1020] | 131 | else
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| 132 | {
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[666] | 133 | Debug << "error! wrong sampling type" << endl;
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| 134 | exit(0);
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| 135 | }
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[660] | 136 |
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[1020] | 137 | // sampling type for evaluation samples
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[1004] | 138 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 139 |
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| 140 | if (strcmp(buf, "box") == 0)
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| 141 | {
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| 142 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 143 | }
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| 144 | else if (strcmp(buf, "directional") == 0)
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| 145 | {
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| 146 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 147 | }
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[1020] | 148 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 149 | {
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[1020] | 150 | mEvaluationSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 151 | }
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[1022] | 152 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 153 | {
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| 154 | mEvaluationSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 155 | }*/
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[1020] | 156 | else
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| 157 | {
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[722] | 158 | Debug << "error! wrong sampling type" << endl;
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| 159 | exit(0);
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| 160 | }
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[503] | 161 |
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[1004] | 162 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 163 |
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[734] | 164 | if (strcmp(buf, "perobject") == 0)
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[728] | 165 | {
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| 166 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 167 | }
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| 168 | else if (strcmp(buf, "directional") == 0)
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| 169 | {
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| 170 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 171 | }
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| 172 | else
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| 173 | {
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| 174 | Debug << "error! wrong sampling type" << endl;
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| 175 | exit(0);
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| 176 | }
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| 177 |
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[1004] | 178 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 179 |
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[482] | 180 | if (strcmp(buf, "PVS") == 0)
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| 181 | mColorCode = 1;
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| 182 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 183 | mColorCode = 2;
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| 184 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 185 | mColorCode = 3;
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| 186 | else
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| 187 | mColorCode = 0;
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| 188 |
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[664] | 189 |
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[710] | 190 |
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[1027] | 191 | Debug << "************ View Cells options ***************" << endl;
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[664] | 192 | Debug << "color code: " << mColorCode << endl;
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| 193 |
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| 194 | Debug << "export rays: " << mExportRays << endl;
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| 195 | Debug << "export geometry: " << mExportGeometry << endl;
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| 196 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 197 |
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[710] | 198 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 199 |
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| 200 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 201 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 202 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 203 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 204 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 205 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 206 | Debug << "export to file: " << mExportViewCells << endl;
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| 207 |
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[801] | 208 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 209 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 210 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 211 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 212 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 213 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 214 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 215 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 216 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 217 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 218 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 219 |
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| 220 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 221 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[1121] | 222 |
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[1159] | 223 | Debug << "store kd pvs: " << mStoreKdPvs << endl;
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| 224 |
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[664] | 225 | Debug << endl;
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[440] | 226 | }
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| 227 |
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[485] | 228 |
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[440] | 229 | ViewCellsManager::~ViewCellsManager()
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| 230 | {
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[1020] | 231 | // HACK: if view cells tree does not
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| 232 | // take care of view cells, we have to do it
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| 233 | // question: rather create view cells resource manager?
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[598] | 234 | if (!ViewCellsTreeConstructed())
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[1141] | 235 | {
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[598] | 236 | CLEAR_CONTAINER(mViewCells);
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[1141] | 237 | }
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| 238 |
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[1002] | 239 | DEL_PTR(mViewCellsTree);
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[440] | 240 | }
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| 241 |
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[859] | 242 | AxisAlignedBox3
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| 243 | ViewCellsManager::GetViewCellBox(ViewCell *vc)
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| 244 | {
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| 245 | Mesh *m = vc->GetMesh();
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| 246 |
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| 247 | if (m) {
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| 248 | m->ComputeBoundingBox();
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| 249 | return m->mBox;
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| 250 | }
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[485] | 251 |
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[859] | 252 | AxisAlignedBox3 box;
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| 253 |
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| 254 | box.Initialize();
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| 255 |
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| 256 | if (!vc->IsLeaf()) {
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| 257 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 258 |
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| 259 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 260 | for (; it != vci->mChildren.end(); ++it) {
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| 261 | box.Include(GetViewCellBox(*it));
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| 262 | }
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| 263 | }
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| 264 |
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| 265 | return box;
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| 266 | }
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| 267 |
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[693] | 268 | void ViewCellsManager::CollectEmptyViewCells()
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| 269 | {
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| 270 | mEmptyViewCells.clear();
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| 271 | ViewCellContainer leaves;
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| 272 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 273 |
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| 274 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 275 |
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| 276 | cout << "collecting empty view cells" << endl;
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[694] | 277 |
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[693] | 278 | for (it = leaves.begin(); it != it_end; ++ it)
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| 279 | {
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| 280 | if ((*it)->GetPvs().Empty())
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| 281 | {
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| 282 | mEmptyViewCells.push_back(*it);
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| 283 | }
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| 284 | }
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[694] | 285 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 286 | }
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| 287 |
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| 288 |
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[1021] | 289 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
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| 290 | {
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| 291 | return false;
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| 292 | }
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| 293 |
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| 294 |
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[694] | 295 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 296 | {
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| 297 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 298 |
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| 299 | char buf[50];
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| 300 | int i = 0;
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| 301 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 302 | {
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| 303 | if (!(*it)->GetPvs().Empty())
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| 304 | {
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[694] | 305 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 306 | Exporter *exporter = Exporter::GetExporter(buf);
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| 307 |
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| 308 | if (exporter && i < 20)
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| 309 | {
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[694] | 310 | Ray *pray = (*it)->mPiercingRays[0];
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[728] | 311 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: "
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[1141] | 312 | << (*it)->GetPvs().CountPvs() << " " << (int)pray->intersections.size() << endl;
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[694] | 313 |
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| 314 | exporter->ExportRays((*it)->mPiercingRays);
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| 315 |
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| 316 | exporter->SetFilled();
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| 317 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 318 |
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| 319 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 320 | {
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| 321 | if (pray->intersections[j].mObject)
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| 322 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 323 | }
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| 324 |
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| 325 | //exporter->SetWireframe();
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| 326 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 327 | exporter->ExportGeometry(obj);
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| 328 |
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| 329 | exporter->SetFilled();
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| 330 |
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| 331 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 332 | ExportViewCellGeometry(exporter, *it);
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[694] | 333 |
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| 334 | delete exporter;
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[693] | 335 | }
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| 336 |
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[694] | 337 |
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[693] | 338 | ++ i;
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| 339 | }
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| 340 | }
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[1002] | 341 | Debug << "\nSampled " << i << " new view cells ("
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| 342 | << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 343 | }
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| 344 |
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| 345 |
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[574] | 346 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 347 | const int sampleType,
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| 348 | VssRayContainer &passSamples) const
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[527] | 349 | {
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[570] | 350 | SimpleRayContainer simpleRays;
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[540] | 351 |
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[1145] | 352 | mPreprocessor->GenerateRays(samplesPerPass,
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[573] | 353 | sampleType,
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[570] | 354 | simpleRays);
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[564] | 355 |
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[573] | 356 | // shoot simple ray and add it to importance samples
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[1145] | 357 | mPreprocessor->CastRays(simpleRays, passSamples);
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[570] | 358 |
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[574] | 359 | return (int)passSamples.size();
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| 360 | }
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[570] | 361 |
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[574] | 362 |
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[607] | 363 |
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[574] | 364 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 365 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 366 | {
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| 367 | cout << "disposing samples ... ";
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[582] | 368 | long startTime = GetTime();
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| 369 | int n = (int)rays.size();
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| 370 |
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[573] | 371 | if (outRays)
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[542] | 372 | {
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[574] | 373 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 374 |
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| 375 | for (it = rays.begin(); it != it_end; ++ it)
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| 376 | {
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| 377 | outRays->push_back(*it);
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| 378 | }
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[573] | 379 | }
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| 380 | else
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| 381 | {
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[639] | 382 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 383 |
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| 384 | for (it = rays.begin(); it != it_end; ++ it)
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| 385 | {
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| 386 | //(*it)->Unref();
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| 387 | if (!(*it)->IsActive())
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| 388 | delete (*it);
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| 389 | }
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[573] | 390 | }
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[639] | 391 |
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[574] | 392 | cout << "finished" << endl;
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[582] | 393 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 394 | }
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[570] | 395 |
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| 396 |
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[573] | 397 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 398 | {
|
---|
[1145] | 399 | mPreprocessor = preprocessor;
|
---|
| 400 |
|
---|
[573] | 401 | int numSamples = 0;
|
---|
[1077] | 402 |
|
---|
[573] | 403 | SimpleRayContainer simpleRays;
|
---|
[574] | 404 | VssRayContainer initialSamples;
|
---|
[540] | 405 |
|
---|
[574] | 406 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
|
---|
[712] | 407 |
|
---|
[752] | 408 | long startTime = GetTime();
|
---|
| 409 |
|
---|
[573] | 410 | //-- construction rays => we use uniform samples for this
|
---|
[574] | 411 | CastPassSamples(mInitialSamples,
|
---|
[660] | 412 | mSamplingType,
|
---|
[574] | 413 | initialSamples);
|
---|
[573] | 414 |
|
---|
[574] | 415 | cout << "finished" << endl;
|
---|
| 416 |
|
---|
[660] | 417 |
|
---|
[573] | 418 | // construct view cells
|
---|
[752] | 419 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 420 |
|
---|
[727] | 421 | // initial samples count for overall samples ...
|
---|
[752] | 422 | numSamples += mInitialSamples;
|
---|
[542] | 423 |
|
---|
[574] | 424 | // rays can be passed or deleted
|
---|
[639] | 425 | disposeRays(initialSamples, outRays);
|
---|
[752] | 426 |
|
---|
| 427 | cout << "time needed for initial construction: "
|
---|
| 428 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 429 |
|
---|
| 430 | Debug << "time needed for initial construction: "
|
---|
| 431 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 432 |
|
---|
[1027] | 433 |
|
---|
[752] | 434 | // take post processing time
|
---|
| 435 | startTime = GetTime();
|
---|
| 436 |
|
---|
[660] | 437 | // -- stats after contruction
|
---|
| 438 | ResetViewCells();
|
---|
[667] | 439 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
| 440 |
|
---|
[1002] | 441 |
|
---|
[1077] | 442 | if (0) // export initial view cells
|
---|
[660] | 443 | {
|
---|
[712] | 444 | const char filename[] = "view_cells.wrl";
|
---|
| 445 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
[660] | 446 |
|
---|
[712] | 447 |
|
---|
[660] | 448 | if (exporter)
|
---|
| 449 | {
|
---|
[712] | 450 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
|
---|
[660] | 451 | if (mExportGeometry)
|
---|
[712] | 452 | {
|
---|
[660] | 453 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 454 | }
|
---|
[660] | 455 |
|
---|
[750] | 456 | exporter->SetWireframe();
|
---|
[660] | 457 | ExportViewCellsForViz(exporter);
|
---|
| 458 |
|
---|
| 459 | delete exporter;
|
---|
[712] | 460 | cout << "finished" << endl;
|
---|
[660] | 461 | }
|
---|
| 462 | }
|
---|
| 463 |
|
---|
[573] | 464 | //-- guided rays are used for further sampling
|
---|
[574] | 465 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[570] | 466 |
|
---|
[666] | 467 | // should we use directional samples?
|
---|
[694] | 468 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 469 |
|
---|
[1074] | 470 | //-- do some more sampling
|
---|
[573] | 471 | while (numSamples < n)
|
---|
| 472 | {
|
---|
[596] | 473 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 474 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 475 |
|
---|
[574] | 476 | VssRayContainer constructionSamples;
|
---|
| 477 |
|
---|
[694] | 478 | const int samplingType = mSamplingType;
|
---|
| 479 | /*dirSamples ?
|
---|
[574] | 480 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
[694] | 481 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
|
---|
[667] | 482 |
|
---|
[720] | 483 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 484 |
|
---|
[727] | 485 | // cast new samples
|
---|
[574] | 486 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 487 | samplingType,
|
---|
[574] | 488 | constructionSamples);
|
---|
| 489 |
|
---|
| 490 | cout << "finished" << endl;
|
---|
| 491 |
|
---|
| 492 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 493 |
|
---|
[727] | 494 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 495 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 496 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 497 |
|
---|
[574] | 498 | cout << "finished" << endl;
|
---|
| 499 |
|
---|
| 500 |
|
---|
[639] | 501 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 502 |
|
---|
| 503 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 504 | }
|
---|
[752] | 505 |
|
---|
[573] | 506 | //-- post processing
|
---|
| 507 | VssRayContainer postProcessSamples;
|
---|
[570] | 508 |
|
---|
[1074] | 509 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 510 |
|
---|
| 511 | // cast post processing samples rays (storing the view cells if wanted)
|
---|
[574] | 512 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 513 | mSamplingType,
|
---|
[574] | 514 | postProcessSamples);
|
---|
[660] | 515 |
|
---|
[1074] | 516 | cout << "finished" << endl;
|
---|
[660] | 517 |
|
---|
| 518 | // stats before post processing (i.e., merge)
|
---|
| 519 | EvaluateViewCellsStats();
|
---|
| 520 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 521 |
|
---|
| 522 | mRenderer->RenderScene();
|
---|
| 523 | SimulationStatistics ss;
|
---|
| 524 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 525 |
|
---|
| 526 | Debug << ss << endl;
|
---|
| 527 |
|
---|
| 528 |
|
---|
[574] | 529 | cout << "starting post processing and visualization" << endl;
|
---|
| 530 |
|
---|
[660] | 531 |
|
---|
[666] | 532 | // store view cells for postprocessing
|
---|
[574] | 533 | const bool storeViewCells = true;
|
---|
[605] | 534 |
|
---|
[660] | 535 |
|
---|
[605] | 536 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 537 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 538 |
|
---|
[720] | 539 | //-- post processing (e.g.,merging) of the view cells
|
---|
[1077] | 540 | if (1) PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 541 |
|
---|
[955] | 542 | cout << "time needed for post processing (merge) step: "
|
---|
[752] | 543 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 544 |
|
---|
[955] | 545 | Debug << "time needed for post processing (merge) step: "
|
---|
[752] | 546 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 547 |
|
---|
[1002] | 548 | disposeRays(postProcessSamples, outRays);
|
---|
| 549 |
|
---|
[801] | 550 |
|
---|
[1002] | 551 | //return 1;
|
---|
[801] | 552 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
| 553 | if (mEvaluateViewCells)
|
---|
| 554 | {
|
---|
[1145] | 555 | EvalViewCellPartition();
|
---|
[801] | 556 | }
|
---|
[1002] | 557 |
|
---|
| 558 |
|
---|
[574] | 559 | //-- visualization
|
---|
[1074] | 560 |
|
---|
[666] | 561 | if (mShowVisualization)
|
---|
| 562 | {
|
---|
| 563 | VssRayContainer visualizationSamples;
|
---|
[574] | 564 |
|
---|
[666] | 565 | //-- construction rays => we use uniform samples for this
|
---|
| 566 | CastPassSamples(mVisualizationSamples,
|
---|
| 567 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 568 | visualizationSamples);
|
---|
[574] | 569 |
|
---|
[666] | 570 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 571 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 572 |
|
---|
[666] | 573 | // different visualizations
|
---|
| 574 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 575 |
|
---|
[666] | 576 | disposeRays(visualizationSamples, outRays);
|
---|
| 577 | }
|
---|
[574] | 578 |
|
---|
[573] | 579 | return numSamples;
|
---|
[527] | 580 | }
|
---|
| 581 |
|
---|
[547] | 582 |
|
---|
[752] | 583 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 584 | const int nViewCells)
|
---|
[728] | 585 | {
|
---|
| 586 | std::ofstream outstream;
|
---|
| 587 | outstream.open(filename.c_str());
|
---|
| 588 |
|
---|
| 589 | ViewCellContainer viewCells;
|
---|
[735] | 590 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 591 |
|
---|
| 592 | float maxRenderCost, minRenderCost;
|
---|
[734] | 593 |
|
---|
| 594 | // sort by render cost
|
---|
| 595 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 596 |
|
---|
| 597 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 598 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 599 |
|
---|
[991] | 600 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 601 |
|
---|
[997] | 602 | int histoIntervals;
|
---|
[1004] | 603 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 604 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 605 |
|
---|
[997] | 606 | int histoMaxVal;
|
---|
[1004] | 607 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 608 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 609 |
|
---|
[997] | 610 |
|
---|
[728] | 611 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 612 | const float stepSize = range / (float)intervals;
|
---|
[728] | 613 |
|
---|
[735] | 614 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 615 |
|
---|
| 616 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 617 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 618 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 619 |
|
---|
[736] | 620 | int j = 0;
|
---|
[735] | 621 | int i = 0;
|
---|
| 622 |
|
---|
[734] | 623 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 624 |
|
---|
[744] | 625 | // count for integral
|
---|
| 626 | float volSum = 0;
|
---|
| 627 | int smallerCostSum = 0;
|
---|
[735] | 628 |
|
---|
[734] | 629 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 630 | while (1)
|
---|
| 631 | {
|
---|
[744] | 632 | // count for histogram value
|
---|
| 633 | float volDif = 0;
|
---|
| 634 | int smallerCostDif = 0;
|
---|
[736] | 635 |
|
---|
[734] | 636 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 637 | {
|
---|
[744] | 638 | volSum += viewCells[i]->GetVolume();
|
---|
| 639 | volDif += viewCells[i]->GetVolume();
|
---|
| 640 |
|
---|
[734] | 641 | ++ i;
|
---|
[744] | 642 | ++ smallerCostSum;
|
---|
| 643 | ++ smallerCostDif;
|
---|
[734] | 644 | }
|
---|
[736] | 645 |
|
---|
[744] | 646 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 647 | break;
|
---|
[736] | 648 |
|
---|
[744] | 649 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 650 | const float volRatioSum = volSum / totalVol;
|
---|
| 651 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 652 |
|
---|
[991] | 653 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 654 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 655 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 656 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 657 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 658 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 659 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 660 |
|
---|
| 661 | // increase current render cost
|
---|
[734] | 662 | currentRenderCost += stepSize;
|
---|
| 663 | }
|
---|
[735] | 664 |
|
---|
[734] | 665 | outstream.close();
|
---|
| 666 | }
|
---|
| 667 |
|
---|
[735] | 668 |
|
---|
[979] | 669 |
|
---|
| 670 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 671 | ObjectContainer *objects,
|
---|
| 672 | const bool finalizeViewCells,
|
---|
| 673 | BoundingBoxConverter *bconverter)
|
---|
| 674 |
|
---|
| 675 | {
|
---|
| 676 | ViewCellsParser parser;
|
---|
| 677 |
|
---|
| 678 | ViewCellsManager *vm = NULL;
|
---|
| 679 |
|
---|
[1004] | 680 | if (parser.ParseFile(filename, &vm, objects, bconverter))
|
---|
[979] | 681 | {
|
---|
| 682 | long startTime = GetTime();
|
---|
| 683 |
|
---|
| 684 | //vm->PrepareLoadedViewCells();
|
---|
| 685 | vm->ResetViewCells();
|
---|
| 686 |
|
---|
| 687 | vm->mViewCellsFinished = true;
|
---|
| 688 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 689 |
|
---|
| 690 | // create the meshes and compute volumes
|
---|
| 691 | if (finalizeViewCells)
|
---|
| 692 | {
|
---|
| 693 | vm->FinalizeViewCells(true);
|
---|
| 694 | vm->mViewCellsTree->AssignRandomColors();
|
---|
| 695 | }
|
---|
| 696 |
|
---|
| 697 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 698 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 699 | }
|
---|
| 700 | else
|
---|
| 701 | {
|
---|
| 702 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 703 | DEL_PTR(vm);
|
---|
| 704 | }
|
---|
| 705 |
|
---|
| 706 | return vm;
|
---|
| 707 | }
|
---|
| 708 |
|
---|
| 709 |
|
---|
| 710 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 711 | const bool exportPvs,
|
---|
| 712 | const ObjectContainer &objects)
|
---|
| 713 | {
|
---|
[1002] | 714 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[997] | 715 | return false;
|
---|
| 716 |
|
---|
[979] | 717 | cout << "exporting view cells to xml ... ";
|
---|
| 718 |
|
---|
| 719 | #if ZIPPED_VIEWCELLS
|
---|
| 720 | ogzstream stream(filename.c_str());
|
---|
| 721 | #else
|
---|
| 722 | std::ofstream stream(filename.c_str());
|
---|
| 723 | #endif
|
---|
| 724 |
|
---|
| 725 | // for output we need unique ids for each view cell
|
---|
| 726 | CreateUniqueViewCellIds();
|
---|
| 727 |
|
---|
| 728 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 729 | stream << "<VisibilitySolution>" << endl;
|
---|
| 730 |
|
---|
| 731 | //-- the view space bounding box
|
---|
| 732 | stream << "<ViewSpaceBox"
|
---|
| 733 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 734 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 735 |
|
---|
[1112] | 736 | if (exportPvs) {
|
---|
[979] | 737 | //-- export bounding boxes
|
---|
| 738 | stream << "<BoundingBoxes>" << endl;
|
---|
| 739 |
|
---|
| 740 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 741 |
|
---|
| 742 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 743 | {
|
---|
| 744 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 745 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 746 |
|
---|
| 747 | //-- the bounding boxes
|
---|
| 748 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 749 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 750 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 751 | }
|
---|
| 752 |
|
---|
| 753 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 754 | }
|
---|
[979] | 755 |
|
---|
| 756 | //-- export the view cells and the pvs
|
---|
| 757 | stream << "<HierarchyType name=\"vspBspTree\" />" << endl;
|
---|
| 758 |
|
---|
| 759 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 760 |
|
---|
| 761 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 762 |
|
---|
| 763 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 764 |
|
---|
| 765 | stream << "</ViewCells>" << endl;
|
---|
| 766 |
|
---|
| 767 |
|
---|
| 768 | //-- export the spatial hierarchy
|
---|
| 769 |
|
---|
| 770 | // the type of the view cells hierarchy
|
---|
| 771 | stream << "<Hierarchy>" << endl;
|
---|
| 772 | mVspBspTree->Export(stream);
|
---|
| 773 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 774 |
|
---|
| 775 | stream << "</VisibilitySolution>" << endl;
|
---|
| 776 |
|
---|
| 777 |
|
---|
| 778 | stream.close();
|
---|
| 779 | cout << "finished" << endl;
|
---|
| 780 |
|
---|
| 781 | return true;
|
---|
| 782 | }
|
---|
| 783 |
|
---|
| 784 |
|
---|
[735] | 785 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 786 | const int nViewCells)
|
---|
[734] | 787 | {
|
---|
| 788 | std::ofstream outstream;
|
---|
| 789 | outstream.open(filename.c_str());
|
---|
| 790 |
|
---|
| 791 | ViewCellContainer viewCells;
|
---|
[735] | 792 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 793 |
|
---|
[997] | 794 | int maxPvs, maxVal, minVal;
|
---|
[734] | 795 |
|
---|
[997] | 796 | // sort by pvs size
|
---|
[735] | 797 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 798 |
|
---|
[1142] | 799 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
[997] | 800 | minVal = 0;
|
---|
| 801 |
|
---|
[991] | 802 | // hack: normalize pvs size
|
---|
[997] | 803 | int histoMaxVal;
|
---|
[1004] | 804 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 805 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 806 |
|
---|
[1121] | 807 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 808 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 809 |
|
---|
[997] | 810 | int histoIntervals;
|
---|
[1004] | 811 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 812 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 813 |
|
---|
[997] | 814 | const int range = maxVal - minVal;
|
---|
[735] | 815 | int stepSize = range / intervals;
|
---|
| 816 |
|
---|
[997] | 817 | // set step size to avoid endless loop
|
---|
[735] | 818 | if (!stepSize) stepSize = 1;
|
---|
[979] | 819 |
|
---|
| 820 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 821 |
|
---|
[735] | 822 |
|
---|
| 823 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 824 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 825 |
|
---|
[997] | 826 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
[735] | 827 |
|
---|
[997] | 828 |
|
---|
[735] | 829 | int i = 0;
|
---|
| 830 | int j = 0;
|
---|
[734] | 831 |
|
---|
[744] | 832 | float volSum = 0;
|
---|
| 833 | int smallerSum = 0;
|
---|
| 834 |
|
---|
[735] | 835 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 836 |
|
---|
[997] | 837 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 838 | {
|
---|
[744] | 839 | float volDif = 0;
|
---|
| 840 | int smallerDif = 0;
|
---|
[736] | 841 |
|
---|
[997] | 842 | while ((i < (int)viewCells.size()) &&
|
---|
[1142] | 843 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
[735] | 844 | {
|
---|
[744] | 845 | volDif += viewCells[i]->GetVolume();
|
---|
| 846 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 847 |
|
---|
[735] | 848 | ++ i;
|
---|
[744] | 849 | ++ smallerDif;
|
---|
| 850 | ++ smallerSum;
|
---|
[735] | 851 | }
|
---|
[736] | 852 |
|
---|
[997] | 853 | if (0 && (i < (int)viewCells.size()))
|
---|
[1142] | 854 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i])
|
---|
[1121] | 855 | << " " << currentPvs << endl;
|
---|
[997] | 856 |
|
---|
[744] | 857 | const float volRatioDif = volDif / totalVol;
|
---|
| 858 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 859 |
|
---|
[997] | 860 | outstream << "#Pass\n" << j << endl;
|
---|
| 861 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 862 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 863 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 864 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 865 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 866 |
|
---|
| 867 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 868 |
|
---|
[997] | 869 | //-- increase current pvs size to define next interval
|
---|
| 870 | currentPvs += stepSize;
|
---|
[728] | 871 | }
|
---|
[991] | 872 |
|
---|
[735] | 873 | outstream.close();
|
---|
[728] | 874 | }
|
---|
| 875 |
|
---|
[735] | 876 |
|
---|
[1002] | 877 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 878 | {
|
---|
| 879 | return mExportPvs;
|
---|
| 880 | }
|
---|
| 881 |
|
---|
| 882 |
|
---|
[1145] | 883 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 884 | {
|
---|
| 885 | int samplesPerPass;
|
---|
| 886 | int numSamples;
|
---|
| 887 | int castSamples = 0;
|
---|
| 888 |
|
---|
[664] | 889 | char s[64];
|
---|
| 890 |
|
---|
[1004] | 891 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 892 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 893 |
|
---|
[664] | 894 | char statsPrefix[100];
|
---|
[1004] | 895 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 896 |
|
---|
[664] | 897 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 898 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 899 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 900 |
|
---|
[666] | 901 | // should directional sampling be used?
|
---|
[722] | 902 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 903 |
|
---|
[801] | 904 | cout << "reseting pvs ... ";
|
---|
| 905 |
|
---|
[1145] | 906 | const bool startFromZero = true;
|
---|
[801] | 907 |
|
---|
[666] | 908 | // reset pvs and start over from zero
|
---|
| 909 | if (startFromZero)
|
---|
| 910 | {
|
---|
| 911 | mViewCellsTree->ResetPvs();
|
---|
| 912 | }
|
---|
[1145] | 913 | else // start from current sampless
|
---|
[666] | 914 | {
|
---|
[1145] | 915 | // statistics before casting more samples
|
---|
[666] | 916 | cout << "compute new statistics ... ";
|
---|
| 917 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 918 | string fName = string(statsPrefix) + string(s);
|
---|
| 919 |
|
---|
| 920 | mViewCellsTree->ExportStats(fName);
|
---|
| 921 | cout << "finished" << endl;
|
---|
| 922 | }
|
---|
| 923 |
|
---|
[744] | 924 | cout << "finished" << endl;
|
---|
| 925 |
|
---|
| 926 | cout << "Evaluating view cell partition" << endl;
|
---|
| 927 |
|
---|
[660] | 928 | while (castSamples < numSamples)
|
---|
| 929 | {
|
---|
[664] | 930 | VssRayContainer evaluationSamples;
|
---|
[663] | 931 |
|
---|
[722] | 932 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 933 | /* dirSamples ?
|
---|
[664] | 934 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 935 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 936 | */
|
---|
[1004] | 937 | long startTime = GetTime();
|
---|
| 938 |
|
---|
[664] | 939 | //-- construction rays => we use uniform samples for this
|
---|
[1004] | 940 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 941 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 942 |
|
---|
[664] | 943 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 944 |
|
---|
| 945 | castSamples += samplesPerPass;
|
---|
| 946 |
|
---|
[1004] | 947 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 948 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 949 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 950 |
|
---|
[1004] | 951 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 952 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 953 |
|
---|
| 954 | startTime = GetTime();
|
---|
| 955 |
|
---|
[664] | 956 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 957 |
|
---|
[1004] | 958 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 959 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 960 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 961 |
|
---|
[1004] | 962 | startTime = GetTime();
|
---|
[801] | 963 |
|
---|
[1004] | 964 | cout << "compute new statistics ... ";
|
---|
| 965 | Debug << "compute new statistics ... ";
|
---|
| 966 |
|
---|
[801] | 967 | //-- propagate pvs or pvs size information
|
---|
[752] | 968 | ObjectPvs pvs;
|
---|
| 969 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 970 |
|
---|
[801] | 971 | //-- output stats
|
---|
[667] | 972 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 973 | string fileName = string(statsPrefix) + string(s);
|
---|
| 974 |
|
---|
| 975 | mViewCellsTree->ExportStats(fileName);
|
---|
| 976 |
|
---|
[1004] | 977 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 978 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 979 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 980 |
|
---|
[664] | 981 |
|
---|
| 982 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 983 | }
|
---|
[728] | 984 |
|
---|
[997] | 985 |
|
---|
| 986 | //-- histogram
|
---|
| 987 |
|
---|
[735] | 988 | bool useHisto;
|
---|
[997] | 989 | int histoStepSize;
|
---|
[693] | 990 |
|
---|
[1004] | 991 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 992 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 993 |
|
---|
[744] | 994 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 995 |
|
---|
| 996 |
|
---|
[735] | 997 | if (useHisto)
|
---|
[734] | 998 | {
|
---|
[735] | 999 | // evaluate view cells in a histogram
|
---|
| 1000 | char s[64];
|
---|
| 1001 |
|
---|
[997] | 1002 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1003 | {
|
---|
[997] | 1004 | string filename;
|
---|
[744] | 1005 |
|
---|
[997] | 1006 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1007 | #if 0
|
---|
[744] | 1008 | //-- evaluate histogram for render cost
|
---|
| 1009 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1010 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1011 |
|
---|
| 1012 | EvalViewCellHistogram(filename, pass);
|
---|
| 1013 |
|
---|
[997] | 1014 | #endif
|
---|
[744] | 1015 | //////////////////////////////////////////
|
---|
[752] | 1016 | //-- evaluate histogram for pvs size
|
---|
[744] | 1017 |
|
---|
| 1018 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1019 |
|
---|
| 1020 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1021 | filename = string(statsPrefix) + string(s);
|
---|
| 1022 |
|
---|
| 1023 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1024 | }
|
---|
[734] | 1025 | }
|
---|
[660] | 1026 | }
|
---|
| 1027 |
|
---|
[704] | 1028 |
|
---|
| 1029 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1030 | {
|
---|
[704] | 1031 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1032 | }
|
---|
[660] | 1033 |
|
---|
[703] | 1034 |
|
---|
[1145] | 1035 | /// Returns index of the best view cells of the neighborhood
|
---|
[704] | 1036 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 1037 | {
|
---|
[705] | 1038 | int bestViewCellIdx = 0;
|
---|
[703] | 1039 |
|
---|
[704] | 1040 | float mergeCost = Limits::Infinity;
|
---|
| 1041 | int i = 0;
|
---|
[703] | 1042 |
|
---|
[734] | 1043 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1044 |
|
---|
[734] | 1045 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1046 | {
|
---|
[734] | 1047 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1048 |
|
---|
| 1049 | if (mc < mergeCost)
|
---|
[704] | 1050 | {
|
---|
| 1051 | mergeCost = mc;
|
---|
| 1052 | bestViewCellIdx = i;
|
---|
[703] | 1053 | }
|
---|
[704] | 1054 | }
|
---|
[703] | 1055 |
|
---|
[704] | 1056 | return bestViewCellIdx;
|
---|
| 1057 | }
|
---|
[703] | 1058 |
|
---|
| 1059 |
|
---|
[728] | 1060 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1061 | {
|
---|
| 1062 | mMaxFilterSize = size;
|
---|
| 1063 | }
|
---|
| 1064 |
|
---|
| 1065 |
|
---|
| 1066 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1067 | {
|
---|
| 1068 | switch (mRenderCostEvaluationType)
|
---|
| 1069 | {
|
---|
| 1070 | case PER_OBJECT:
|
---|
[752] | 1071 | //cout << "perobject" << endl;
|
---|
| 1072 | return 1.0f;
|
---|
[728] | 1073 |
|
---|
| 1074 | case PER_TRIANGLE:
|
---|
[1145] | 1075 | {//cout << "pertriangle" << endl;
|
---|
[728] | 1076 | // HACK
|
---|
| 1077 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1078 |
|
---|
| 1079 | // HACK: assume meshes are triangles
|
---|
| 1080 | if (mi->GetMesh())
|
---|
| 1081 | {
|
---|
[1145] | 1082 | return (float)mi->GetMesh()->mFaces.size();
|
---|
[728] | 1083 | }
|
---|
| 1084 | }
|
---|
| 1085 | default:
|
---|
[752] | 1086 | cout << "default" << endl;
|
---|
| 1087 | return 1.0f;
|
---|
[728] | 1088 | }
|
---|
| 1089 |
|
---|
| 1090 | // should not come here
|
---|
[752] | 1091 | return 0.0f;
|
---|
[728] | 1092 | }
|
---|
| 1093 |
|
---|
| 1094 |
|
---|
[704] | 1095 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1096 | const ViewCellContainer &viewCells)
|
---|
| 1097 | {
|
---|
| 1098 | ViewCell *root = currentViewCell;
|
---|
| 1099 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1100 |
|
---|
[704] | 1101 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1102 |
|
---|
[704] | 1103 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1104 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 1105 |
|
---|
[705] | 1106 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 1107 | //const float maxAvgCost = 350;
|
---|
| 1108 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1109 | {
|
---|
[704] | 1110 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1111 |
|
---|
[704] | 1112 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1113 |
|
---|
[704] | 1114 | // remove from vector
|
---|
| 1115 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1116 | neighborhood.pop_back();
|
---|
[705] | 1117 |
|
---|
[713] | 1118 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 1119 | if (!bestViewCell || !root)
|
---|
| 1120 | cout << "warning!!" << endl;
|
---|
[705] | 1121 |
|
---|
[704] | 1122 | // create new root of the hierarchy
|
---|
| 1123 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1124 | }
|
---|
| 1125 |
|
---|
[704] | 1126 | return root;
|
---|
[703] | 1127 | }
|
---|
| 1128 |
|
---|
[704] | 1129 |
|
---|
[713] | 1130 | struct SortableViewCellEntry {
|
---|
| 1131 |
|
---|
| 1132 | SortableViewCellEntry() {}
|
---|
| 1133 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
| 1134 |
|
---|
| 1135 | float mValue;
|
---|
| 1136 | ViewCell *mViewCell;
|
---|
| 1137 |
|
---|
| 1138 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1139 | return a.mValue < b.mValue;
|
---|
| 1140 | }
|
---|
| 1141 | };
|
---|
| 1142 |
|
---|
| 1143 | ViewCell *
|
---|
| 1144 | ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1145 | const ViewCellContainer &viewCells)
|
---|
| 1146 | {
|
---|
| 1147 |
|
---|
| 1148 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1149 | int i, j;
|
---|
| 1150 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1151 | if (viewCells[i] != currentViewCell)
|
---|
| 1152 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1153 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1154 | viewCells[i]);
|
---|
| 1155 | }
|
---|
| 1156 | neighborhood.resize(j);
|
---|
| 1157 |
|
---|
| 1158 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1159 |
|
---|
| 1160 | ViewCell *root = currentViewCell;
|
---|
| 1161 |
|
---|
| 1162 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1163 |
|
---|
| 1164 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1165 | //-- use priority queue to merge leaf pairs
|
---|
| 1166 |
|
---|
| 1167 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1168 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1169 | {
|
---|
[713] | 1170 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1171 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1172 | // create new root of the hierarchy
|
---|
| 1173 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1174 | // set negative cost so that this view cell gets deleted
|
---|
| 1175 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1176 | }
|
---|
[713] | 1177 |
|
---|
| 1178 | return root;
|
---|
| 1179 | }
|
---|
| 1180 |
|
---|
| 1181 | void
|
---|
| 1182 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1183 | ) const
|
---|
| 1184 | {
|
---|
| 1185 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 1186 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1187 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1188 |
|
---|
| 1189 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1190 | DeleteLocalMergeTree(*it);
|
---|
| 1191 | vci->mChildren.clear();
|
---|
| 1192 | delete vci;
|
---|
| 1193 | }
|
---|
| 1194 | }
|
---|
| 1195 |
|
---|
[1021] | 1196 |
|
---|
[564] | 1197 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1198 | int minPvsSize,
|
---|
[562] | 1199 | int maxPvsSize) const
|
---|
[547] | 1200 | {
|
---|
[569] | 1201 |
|
---|
[1141] | 1202 | if ((vc->GetPvs().CountPvs() > maxPvsSize) ||
|
---|
| 1203 | (vc->GetPvs().CountPvs() < minPvsSize))
|
---|
[564] | 1204 | {
|
---|
[710] | 1205 | return false;
|
---|
[561] | 1206 | }
|
---|
[570] | 1207 |
|
---|
[710] | 1208 | return true;
|
---|
[547] | 1209 | }
|
---|
| 1210 |
|
---|
| 1211 |
|
---|
[710] | 1212 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1213 | ViewCellContainer &viewCells) const
|
---|
| 1214 | {
|
---|
| 1215 | return 0;
|
---|
| 1216 | };
|
---|
| 1217 |
|
---|
[1021] | 1218 |
|
---|
[697] | 1219 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1220 | const float width) const
|
---|
| 1221 | {
|
---|
[746] | 1222 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1223 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1224 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1225 |
|
---|
| 1226 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1227 | }
|
---|
| 1228 |
|
---|
| 1229 |
|
---|
[904] | 1230 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1231 | PrVs &prvs,
|
---|
| 1232 | const float filterWidth)
|
---|
[697] | 1233 | {
|
---|
[1112] | 1234 |
|
---|
[746] | 1235 |
|
---|
[1112] | 1236 |
|
---|
| 1237 |
|
---|
[746] | 1238 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1239 |
|
---|
[1112] | 1240 | if (mMaxFilterSize < 1) {
|
---|
| 1241 | prvs.mViewCell = currentViewCell;
|
---|
| 1242 | return;
|
---|
| 1243 | }
|
---|
| 1244 |
|
---|
| 1245 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1246 |
|
---|
[746] | 1247 | if (currentViewCell) {
|
---|
[697] | 1248 | ViewCellContainer viewCells;
|
---|
| 1249 | ComputeBoxIntersections(box, viewCells);
|
---|
[1112] | 1250 |
|
---|
| 1251 |
|
---|
[713] | 1252 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1253 | prvs.mViewCell = root;
|
---|
[1112] | 1254 |
|
---|
[746] | 1255 | } else
|
---|
| 1256 | prvs.mViewCell = NULL;
|
---|
| 1257 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1258 | }
|
---|
| 1259 |
|
---|
| 1260 |
|
---|
[581] | 1261 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1262 | {
|
---|
[1002] | 1263 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1264 | }
|
---|
| 1265 |
|
---|
| 1266 |
|
---|
[564] | 1267 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1268 | int minPvs,
|
---|
[562] | 1269 | int maxPvs) const
|
---|
| 1270 | {
|
---|
| 1271 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1272 | }
|
---|
| 1273 |
|
---|
[577] | 1274 |
|
---|
[569] | 1275 | void
|
---|
| 1276 | ViewCellsManager::SetValidity(
|
---|
[570] | 1277 | int minPvsSize,
|
---|
[569] | 1278 | int maxPvsSize) const
|
---|
| 1279 | {
|
---|
[991] | 1280 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1281 |
|
---|
[991] | 1282 |
|
---|
| 1283 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1284 | {
|
---|
| 1285 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1286 | }
|
---|
[569] | 1287 | }
|
---|
[562] | 1288 |
|
---|
[569] | 1289 | void
|
---|
| 1290 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1291 | const float minValid,
|
---|
| 1292 | const float maxValid
|
---|
| 1293 | )
|
---|
| 1294 | {
|
---|
[997] | 1295 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1296 |
|
---|
[1151] | 1297 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1298 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1299 |
|
---|
[1151] | 1300 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1301 | {
|
---|
| 1302 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1303 | }
|
---|
[569] | 1304 | }
|
---|
| 1305 |
|
---|
[1148] | 1306 |
|
---|
[991] | 1307 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1308 | {
|
---|
[991] | 1309 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1310 | int valid = 0;
|
---|
| 1311 |
|
---|
| 1312 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1313 | {
|
---|
| 1314 | if ((*it)->GetValid())
|
---|
| 1315 | ++ valid;
|
---|
| 1316 | }
|
---|
| 1317 |
|
---|
| 1318 | return valid;
|
---|
[569] | 1319 | }
|
---|
| 1320 |
|
---|
[577] | 1321 |
|
---|
| 1322 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1323 | {
|
---|
| 1324 | X3dParser parser;
|
---|
[503] | 1325 |
|
---|
[1004] | 1326 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1327 |
|
---|
[440] | 1328 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1329 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1330 |
|
---|
| 1331 | return success;
|
---|
| 1332 | }
|
---|
| 1333 |
|
---|
[485] | 1334 |
|
---|
[487] | 1335 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1336 | {
|
---|
[542] | 1337 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1338 | return true;
|
---|
| 1339 | }
|
---|
| 1340 |
|
---|
| 1341 |
|
---|
[557] | 1342 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1343 | {
|
---|
[610] | 1344 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1345 | }
|
---|
| 1346 |
|
---|
| 1347 |
|
---|
[490] | 1348 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1349 | {
|
---|
[569] | 1350 | if (!ViewCellsConstructed())
|
---|
[837] | 1351 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1352 | else
|
---|
| 1353 | {
|
---|
| 1354 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1355 | return false;
|
---|
| 1356 |
|
---|
| 1357 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1358 |
|
---|
| 1359 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1360 | return false;
|
---|
[569] | 1361 | }
|
---|
[837] | 1362 |
|
---|
[569] | 1363 | return true;
|
---|
[490] | 1364 | }
|
---|
| 1365 |
|
---|
[501] | 1366 |
|
---|
[563] | 1367 | float
|
---|
| 1368 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[1155] | 1369 | const bool addRays,
|
---|
[574] | 1370 | const bool storeViewCells
|
---|
[563] | 1371 | )
|
---|
[440] | 1372 | {
|
---|
[563] | 1373 | // view cells not yet constructed
|
---|
| 1374 | if (!ViewCellsConstructed())
|
---|
| 1375 | return 0.0f;
|
---|
[564] | 1376 |
|
---|
[563] | 1377 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 1378 |
|
---|
[563] | 1379 | float sum = 0.0f;
|
---|
[1155] | 1380 |
|
---|
[664] | 1381 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1382 | {
|
---|
[1159] | 1383 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
[563] | 1384 | }
|
---|
[664] | 1385 |
|
---|
[563] | 1386 | return sum;
|
---|
[440] | 1387 | }
|
---|
| 1388 |
|
---|
[485] | 1389 |
|
---|
[479] | 1390 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1391 | {
|
---|
[660] | 1392 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1393 |
|
---|
| 1394 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1395 |
|
---|
| 1396 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1397 | {
|
---|
[660] | 1398 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1399 | }
|
---|
[479] | 1400 | }
|
---|
| 1401 |
|
---|
[485] | 1402 |
|
---|
[580] | 1403 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1404 | float &expectedRenderCost,
|
---|
[580] | 1405 | float &deviation,
|
---|
| 1406 | float &variance,
|
---|
| 1407 | int &totalPvs,
|
---|
| 1408 | float &avgRenderCost)
|
---|
[579] | 1409 | {
|
---|
| 1410 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1411 |
|
---|
| 1412 | //-- compute expected value
|
---|
| 1413 | totalRenderCost = 0;
|
---|
[580] | 1414 | totalPvs = 0;
|
---|
[579] | 1415 |
|
---|
| 1416 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1417 | {
|
---|
| 1418 | ViewCell *vc = *it;
|
---|
[1141] | 1419 | totalRenderCost += vc->GetPvs().CountPvs() * vc->GetVolume();
|
---|
| 1420 | totalPvs += (int)vc->GetPvs().CountPvs();
|
---|
[579] | 1421 | }
|
---|
| 1422 |
|
---|
[580] | 1423 | // normalize with view space box
|
---|
| 1424 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1425 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1426 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1427 |
|
---|
| 1428 |
|
---|
[580] | 1429 | //-- compute standard defiation
|
---|
[579] | 1430 | variance = 0;
|
---|
[580] | 1431 | deviation = 0;
|
---|
[579] | 1432 |
|
---|
| 1433 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1434 | {
|
---|
| 1435 | ViewCell *vc = *it;
|
---|
| 1436 |
|
---|
[1141] | 1437 | float renderCost = vc->GetPvs().CountPvs() * vc->GetVolume();
|
---|
[580] | 1438 | float dev;
|
---|
[579] | 1439 |
|
---|
[580] | 1440 | if (1)
|
---|
[1141] | 1441 | dev = fabs(avgRenderCost - (float)vc->GetPvs().CountPvs());
|
---|
[580] | 1442 | else
|
---|
| 1443 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1444 |
|
---|
[580] | 1445 | deviation += dev;
|
---|
| 1446 | variance += dev * dev;
|
---|
[579] | 1447 | }
|
---|
[580] | 1448 |
|
---|
[579] | 1449 | variance /= (float)mViewCells.size();
|
---|
[580] | 1450 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1451 | }
|
---|
| 1452 |
|
---|
| 1453 |
|
---|
| 1454 |
|
---|
[440] | 1455 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1456 | {
|
---|
| 1457 | mViewCells.push_back(viewCell);
|
---|
| 1458 | }
|
---|
| 1459 |
|
---|
[485] | 1460 |
|
---|
[478] | 1461 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1462 | {
|
---|
| 1463 | return viewCell->GetArea();
|
---|
| 1464 | }
|
---|
| 1465 |
|
---|
| 1466 |
|
---|
| 1467 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1468 | {
|
---|
| 1469 | return viewCell->GetVolume();
|
---|
| 1470 | }
|
---|
| 1471 |
|
---|
[485] | 1472 |
|
---|
[1002] | 1473 | void ViewCellsManager::DeriveViewCellsFromObjects(const ObjectContainer &objects,
|
---|
| 1474 | ViewCellContainer &viewCells,
|
---|
| 1475 | const int maxViewCells) const
|
---|
[440] | 1476 | {
|
---|
| 1477 | // maximal max viewcells
|
---|
[503] | 1478 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1479 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1480 |
|
---|
| 1481 | for (int i = 0; i < limit; ++ i)
|
---|
| 1482 | {
|
---|
| 1483 | Intersectable *object = objects[i];
|
---|
[503] | 1484 |
|
---|
[440] | 1485 | // extract the mesh instances
|
---|
| 1486 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1487 | {
|
---|
| 1488 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1489 |
|
---|
| 1490 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1491 | viewCells.push_back(viewCell);
|
---|
| 1492 | }
|
---|
[1001] | 1493 | else if (object->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
| 1494 | {
|
---|
| 1495 | TransformedMeshInstance *mi = dynamic_cast<TransformedMeshInstance *>(object);
|
---|
| 1496 |
|
---|
| 1497 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1002] | 1498 |
|
---|
[1001] | 1499 | // transform mesh
|
---|
[1002] | 1500 | mi->GetTransformedMesh(*mesh);
|
---|
[1001] | 1501 |
|
---|
| 1502 | // create bb + kd tree
|
---|
| 1503 | mesh->Preprocess();
|
---|
| 1504 |
|
---|
| 1505 | ViewCell *viewCell = GenerateViewCell(mi->GetMesh());
|
---|
| 1506 | viewCells.push_back(viewCell);
|
---|
| 1507 |
|
---|
| 1508 | break;
|
---|
| 1509 | }
|
---|
[440] | 1510 | }
|
---|
| 1511 | }
|
---|
| 1512 |
|
---|
[485] | 1513 |
|
---|
[503] | 1514 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1515 | const float height) const
|
---|
| 1516 | {
|
---|
| 1517 | // one mesh per view cell
|
---|
[1001] | 1518 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1519 |
|
---|
[440] | 1520 | //-- construct prism
|
---|
| 1521 |
|
---|
[503] | 1522 | // bottom
|
---|
[440] | 1523 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1524 | // top
|
---|
| 1525 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1526 | // sides
|
---|
| 1527 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1528 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1529 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1530 |
|
---|
| 1531 | //--- extrude new vertices for top of prism
|
---|
| 1532 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1533 |
|
---|
[503] | 1534 | Triangle3 topTri;
|
---|
[440] | 1535 |
|
---|
| 1536 | // add base vertices and calculate top vertices
|
---|
| 1537 | for (int i = 0; i < 3; ++ i)
|
---|
| 1538 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1539 |
|
---|
| 1540 | // add top vertices
|
---|
[440] | 1541 | for (int i = 0; i < 3; ++ i)
|
---|
| 1542 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1543 |
|
---|
[440] | 1544 | mesh->Preprocess();
|
---|
| 1545 |
|
---|
| 1546 | return GenerateViewCell(mesh);
|
---|
| 1547 | }
|
---|
| 1548 |
|
---|
[485] | 1549 |
|
---|
[551] | 1550 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1551 | {
|
---|
| 1552 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1553 |
|
---|
| 1554 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1555 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1556 | {
|
---|
| 1557 | Finalize(*it, createMesh);
|
---|
| 1558 | }
|
---|
[555] | 1559 |
|
---|
| 1560 | mTotalAreaValid = false;
|
---|
[551] | 1561 | }
|
---|
| 1562 |
|
---|
| 1563 |
|
---|
| 1564 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1565 | {
|
---|
| 1566 | // implemented in subclasses
|
---|
| 1567 | }
|
---|
| 1568 |
|
---|
[1001] | 1569 |
|
---|
[752] | 1570 | // fast way of merging 2 view cells
|
---|
[582] | 1571 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1572 | {
|
---|
[580] | 1573 | // generate parent view cell
|
---|
[752] | 1574 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1575 |
|
---|
[752] | 1576 | vc->GetPvs().Clear();
|
---|
[610] | 1577 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1578 |
|
---|
| 1579 | // merge pvs of right cell
|
---|
[610] | 1580 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1581 |
|
---|
[462] | 1582 | //-- merge ray sets
|
---|
[564] | 1583 | if (0)
|
---|
| 1584 | {
|
---|
[582] | 1585 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1586 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1587 |
|
---|
[582] | 1588 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1589 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1590 | vc->mPiercingRays.begin());
|
---|
| 1591 | }
|
---|
[440] | 1592 |
|
---|
[710] | 1593 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1594 | vc->mChildren.push_back(left);
|
---|
| 1595 | vc->mChildren.push_back(right);
|
---|
| 1596 |
|
---|
[752] | 1597 | // update pvs size
|
---|
[1141] | 1598 | vc->mPvsSize = vc->GetPvs().CountPvs();
|
---|
[752] | 1599 | vc->mPvsSizeValid = true;
|
---|
| 1600 |
|
---|
[440] | 1601 | return vc;
|
---|
| 1602 | }
|
---|
| 1603 |
|
---|
[485] | 1604 |
|
---|
[582] | 1605 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1606 | {
|
---|
[752] | 1607 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1608 |
|
---|
| 1609 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1610 |
|
---|
| 1611 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1612 | {
|
---|
| 1613 | // merge pvs
|
---|
[610] | 1614 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1615 | vc->mChildren.push_back(*it);
|
---|
[582] | 1616 | }
|
---|
| 1617 |
|
---|
| 1618 | return vc;
|
---|
| 1619 | }
|
---|
| 1620 |
|
---|
| 1621 |
|
---|
[480] | 1622 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1623 | {
|
---|
| 1624 | mRenderer = renderer;
|
---|
| 1625 | }
|
---|
[441] | 1626 |
|
---|
[485] | 1627 |
|
---|
[580] | 1628 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1629 | {
|
---|
[580] | 1630 | return mViewCellsTree;
|
---|
[440] | 1631 | }
|
---|
| 1632 |
|
---|
| 1633 |
|
---|
| 1634 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1635 | {
|
---|
[444] | 1636 | mVisualizationSamples = visSamples;
|
---|
[440] | 1637 | }
|
---|
| 1638 |
|
---|
[485] | 1639 |
|
---|
[440] | 1640 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1641 | {
|
---|
| 1642 | mConstructionSamples = constructionSamples;
|
---|
| 1643 | }
|
---|
| 1644 |
|
---|
[485] | 1645 |
|
---|
[574] | 1646 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1647 | {
|
---|
| 1648 | mInitialSamples = initialSamples;
|
---|
| 1649 | }
|
---|
| 1650 |
|
---|
| 1651 |
|
---|
[440] | 1652 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1653 | {
|
---|
| 1654 | mPostProcessSamples = postProcessSamples;
|
---|
| 1655 | }
|
---|
| 1656 |
|
---|
[485] | 1657 |
|
---|
[440] | 1658 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1659 | {
|
---|
| 1660 | return mVisualizationSamples;
|
---|
| 1661 | }
|
---|
| 1662 |
|
---|
[485] | 1663 |
|
---|
[440] | 1664 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1665 | {
|
---|
| 1666 | return mConstructionSamples;
|
---|
| 1667 | }
|
---|
| 1668 |
|
---|
[485] | 1669 |
|
---|
[440] | 1670 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1671 | {
|
---|
| 1672 | return mPostProcessSamples;
|
---|
| 1673 | }
|
---|
| 1674 |
|
---|
[485] | 1675 |
|
---|
[719] | 1676 | void ViewCellsManager::UpdatePvs()
|
---|
| 1677 | {
|
---|
[720] | 1678 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1679 | return;
|
---|
| 1680 |
|
---|
| 1681 | mViewCellPvsIsUpdated = true;
|
---|
| 1682 |
|
---|
| 1683 | ViewCellContainer leaves;
|
---|
| 1684 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1685 |
|
---|
| 1686 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1687 |
|
---|
| 1688 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1689 | {
|
---|
| 1690 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1691 | }
|
---|
| 1692 | }
|
---|
| 1693 |
|
---|
| 1694 |
|
---|
[485] | 1695 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1696 | {
|
---|
[1121] | 1697 | // update pvs of view cells tree if necessary
|
---|
| 1698 | UpdatePvs();
|
---|
| 1699 |
|
---|
| 1700 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1701 |
|
---|
| 1702 | stat.viewcells = 0;
|
---|
| 1703 | stat.minPvs = 100000000;
|
---|
| 1704 | stat.maxPvs = 0;
|
---|
| 1705 | stat.avgPvs = 0.0f;
|
---|
| 1706 |
|
---|
| 1707 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1708 | {
|
---|
[1121] | 1709 | ViewCell *viewcell = *it;
|
---|
| 1710 |
|
---|
[1142] | 1711 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
[1121] | 1712 |
|
---|
| 1713 | if (pvsSize < stat.minPvs)
|
---|
| 1714 | stat.minPvs = pvsSize;
|
---|
| 1715 | if (pvsSize > stat.maxPvs)
|
---|
| 1716 | stat.maxPvs = pvsSize;
|
---|
| 1717 |
|
---|
| 1718 | stat.avgPvs += pvsSize;
|
---|
| 1719 |
|
---|
| 1720 | ++ stat.viewcells;
|
---|
[719] | 1721 | }
|
---|
[1121] | 1722 |
|
---|
| 1723 | if (stat.viewcells)
|
---|
| 1724 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1725 | }
|
---|
| 1726 |
|
---|
[485] | 1727 |
|
---|
[480] | 1728 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1729 | {
|
---|
| 1730 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1731 | PvsStatistics pvsStat;
|
---|
| 1732 | GetPvsStatistics(pvsStat);
|
---|
| 1733 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1734 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1735 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1736 | }
|
---|
| 1737 |
|
---|
[485] | 1738 |
|
---|
[532] | 1739 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1740 | {
|
---|
| 1741 | return 0;
|
---|
| 1742 | }
|
---|
| 1743 |
|
---|
[547] | 1744 |
|
---|
[468] | 1745 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1746 | {
|
---|
| 1747 | return mViewCells;
|
---|
| 1748 | }
|
---|
| 1749 |
|
---|
[485] | 1750 |
|
---|
[487] | 1751 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1752 | {
|
---|
[542] | 1753 | mViewSpaceBox = box;
|
---|
[1074] | 1754 |
|
---|
[1027] | 1755 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1756 | CreateClipPlane();
|
---|
[1027] | 1757 | // the total area of the view space has changed
|
---|
[577] | 1758 | mTotalAreaValid = false;
|
---|
[487] | 1759 | }
|
---|
| 1760 |
|
---|
| 1761 |
|
---|
[660] | 1762 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1763 | {
|
---|
| 1764 | int axis = 0;
|
---|
[667] | 1765 | float pos;
|
---|
[591] | 1766 |
|
---|
[1004] | 1767 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1768 |
|
---|
[667] | 1769 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1770 |
|
---|
[660] | 1771 | if (mUseClipPlaneForViz)
|
---|
[1004] | 1772 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1773 |
|
---|
[1047] | 1774 | mClipPlane = AxisAlignedPlane(axis, point[axis]);
|
---|
[591] | 1775 | }
|
---|
| 1776 |
|
---|
| 1777 |
|
---|
[519] | 1778 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1779 | {
|
---|
[542] | 1780 | return mViewSpaceBox;
|
---|
[519] | 1781 | }
|
---|
| 1782 |
|
---|
| 1783 |
|
---|
[480] | 1784 | void ViewCellsManager::ResetViewCells()
|
---|
| 1785 | {
|
---|
[720] | 1786 | // recollect view cells
|
---|
[480] | 1787 | mViewCells.clear();
|
---|
| 1788 | CollectViewCells();
|
---|
[590] | 1789 |
|
---|
[720] | 1790 |
|
---|
| 1791 | // stats are computed once more
|
---|
[660] | 1792 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1793 | EvaluateViewCellsStats();
|
---|
[590] | 1794 |
|
---|
[520] | 1795 | // has to be recomputed
|
---|
[480] | 1796 | mTotalAreaValid = false;
|
---|
| 1797 | }
|
---|
| 1798 |
|
---|
[485] | 1799 |
|
---|
[547] | 1800 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1801 | {
|
---|
| 1802 | return mMaxPvsSize;
|
---|
| 1803 | }
|
---|
| 1804 |
|
---|
[590] | 1805 |
|
---|
[563] | 1806 | void
|
---|
| 1807 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1808 | {
|
---|
| 1809 | if (!ViewCellsConstructed())
|
---|
| 1810 | return;
|
---|
[564] | 1811 |
|
---|
[563] | 1812 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1813 |
|
---|
[563] | 1814 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1815 | AddSampleContributions(*(*it));
|
---|
| 1816 | }
|
---|
| 1817 | }
|
---|
[547] | 1818 |
|
---|
[581] | 1819 |
|
---|
[562] | 1820 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1821 | {
|
---|
| 1822 | return mMinPvsSize;
|
---|
| 1823 | }
|
---|
| 1824 |
|
---|
| 1825 |
|
---|
| 1826 |
|
---|
[561] | 1827 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1828 | {
|
---|
| 1829 | return mMaxPvsRatio;
|
---|
| 1830 | }
|
---|
| 1831 |
|
---|
| 1832 |
|
---|
[563] | 1833 | void
|
---|
| 1834 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1835 | {
|
---|
[563] | 1836 | // assumes viewcells have been stored...
|
---|
| 1837 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1838 | ViewCellContainer::const_iterator it;
|
---|
| 1839 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1840 | ViewCell *viewcell = *it;
|
---|
[569] | 1841 | if (viewcell->GetValid()) {
|
---|
| 1842 | // if ray not outside of view space
|
---|
| 1843 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1844 | }
|
---|
[563] | 1845 | }
|
---|
| 1846 | }
|
---|
[503] | 1847 |
|
---|
[574] | 1848 |
|
---|
[1159] | 1849 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 1850 | const bool addRays,
|
---|
| 1851 | const bool storeViewCells)
|
---|
[563] | 1852 | {
|
---|
[570] | 1853 | ViewCellContainer viewcells;
|
---|
[564] | 1854 |
|
---|
[570] | 1855 | ray.mPvsContribution = 0;
|
---|
| 1856 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1857 |
|
---|
[570] | 1858 | static Ray hray;
|
---|
[564] | 1859 | hray.Init(ray);
|
---|
| 1860 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1861 | //Ray hray(ray);
|
---|
| 1862 |
|
---|
| 1863 | float tmin = 0, tmax = 1.0;
|
---|
| 1864 |
|
---|
| 1865 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1866 | return 0;
|
---|
[564] | 1867 |
|
---|
| 1868 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1869 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1870 |
|
---|
[1006] | 1871 | // traverse the view space subdivision
|
---|
[564] | 1872 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1873 |
|
---|
[574] | 1874 | if (storeViewCells)
|
---|
[1155] | 1875 | { // copy viewcells memory efficiently
|
---|
[570] | 1876 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1877 | ray.mViewCells = viewcells;
|
---|
| 1878 | }
|
---|
[564] | 1879 |
|
---|
[570] | 1880 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1881 |
|
---|
[664] | 1882 | for (; it != viewcells.end(); ++ it)
|
---|
| 1883 | {
|
---|
| 1884 | ViewCell *viewcell = *it;
|
---|
[694] | 1885 |
|
---|
[708] | 1886 | if (viewcell->GetValid())
|
---|
[664] | 1887 | {
|
---|
| 1888 | // if ray not outside of view space
|
---|
| 1889 | float contribution;
|
---|
[1112] | 1890 | if (ray.mTerminationObject) {
|
---|
| 1891 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 1892 | ray.mPdf,
|
---|
| 1893 | contribution))
|
---|
[664] | 1894 | ++ ray.mPvsContribution;
|
---|
[1112] | 1895 | ray.mRelativePvsContribution += contribution;
|
---|
[664] | 1896 | }
|
---|
[840] | 1897 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1898 | // made in one direction!!!
|
---|
| 1899 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1159] | 1900 | #if COUNT_ORIGIN_OBJECTS
|
---|
[666] | 1901 | if (ray.mOriginObject &&
|
---|
| 1902 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1903 | ray.mPdf,
|
---|
| 1904 | contribution))
|
---|
| 1905 | {
|
---|
| 1906 | ++ ray.mPvsContribution;
|
---|
| 1907 | ray.mRelativePvsContribution += contribution;
|
---|
| 1908 | }
|
---|
[718] | 1909 | #endif
|
---|
[664] | 1910 | }
|
---|
[569] | 1911 | }
|
---|
[564] | 1912 |
|
---|
[1155] | 1913 | // if addrays is true, sampled entities are stored in the pvs
|
---|
[664] | 1914 | if (addRays)
|
---|
| 1915 | {
|
---|
| 1916 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1917 | {
|
---|
| 1918 | ViewCell *viewcell = *it;
|
---|
| 1919 |
|
---|
[706] | 1920 | if (viewcell->GetValid())
|
---|
[664] | 1921 | {
|
---|
| 1922 | // if ray not outside of view space
|
---|
[718] | 1923 |
|
---|
[1159] | 1924 | // add new object to the pvs
|
---|
[1155] | 1925 | if (ray.mTerminationObject)
|
---|
| 1926 | {
|
---|
[1159] | 1927 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1928 | }
|
---|
| 1929 | #if COUNT_ORIGIN_OBJECTS
|
---|
[666] | 1930 | if (ray.mOriginObject)
|
---|
[1159] | 1931 | {
|
---|
[666] | 1932 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 1933 | }
|
---|
[718] | 1934 | #endif
|
---|
[664] | 1935 | }
|
---|
| 1936 | }
|
---|
[563] | 1937 | }
|
---|
[570] | 1938 |
|
---|
| 1939 | return ray.mRelativePvsContribution;
|
---|
[468] | 1940 | }
|
---|
| 1941 |
|
---|
| 1942 |
|
---|
[469] | 1943 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1944 | const int maxSize,
|
---|
[503] | 1945 | VssRayContainer &usedRays,
|
---|
[485] | 1946 | VssRayContainer *savedRays) const
|
---|
[469] | 1947 | {
|
---|
[485] | 1948 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1949 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1950 |
|
---|
[485] | 1951 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1952 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1953 | {
|
---|
[473] | 1954 | if (Random(1.0f) < prop)
|
---|
[485] | 1955 | usedRays.push_back(*it);
|
---|
| 1956 | else if (savedRays)
|
---|
| 1957 | savedRays->push_back(*it);
|
---|
[469] | 1958 | }
|
---|
| 1959 | }
|
---|
| 1960 |
|
---|
[477] | 1961 |
|
---|
[728] | 1962 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1963 | {
|
---|
[1145] | 1964 | return (float)mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1965 | }
|
---|
| 1966 |
|
---|
| 1967 |
|
---|
[477] | 1968 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1969 | {
|
---|
| 1970 | // if already computed
|
---|
| 1971 | if (mTotalAreaValid)
|
---|
[728] | 1972 | {
|
---|
[470] | 1973 | return mTotalArea;
|
---|
[728] | 1974 | }
|
---|
[470] | 1975 |
|
---|
| 1976 | mTotalArea = 0;
|
---|
| 1977 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1978 |
|
---|
| 1979 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1980 | {
|
---|
| 1981 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1982 | mTotalArea += GetArea(*it);
|
---|
[480] | 1983 | }
|
---|
| 1984 |
|
---|
[470] | 1985 | mTotalAreaValid = true;
|
---|
| 1986 |
|
---|
| 1987 | return mTotalArea;
|
---|
| 1988 | }
|
---|
| 1989 |
|
---|
[482] | 1990 |
|
---|
[475] | 1991 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1992 | {
|
---|
[660] | 1993 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1994 | }
|
---|
| 1995 |
|
---|
[477] | 1996 |
|
---|
[508] | 1997 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 1998 | {
|
---|
[651] | 1999 | if (ViewCellsTreeConstructed())
|
---|
| 2000 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 2001 | else
|
---|
| 2002 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 2003 | mViewCells[i]->SetId(i);
|
---|
[508] | 2004 | }
|
---|
| 2005 |
|
---|
| 2006 |
|
---|
| 2007 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 2008 | {
|
---|
[482] | 2009 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2010 |
|
---|
| 2011 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2012 | {
|
---|
[574] | 2013 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2014 | {
|
---|
[801] | 2015 | ExportColor(exporter, *it);
|
---|
| 2016 |
|
---|
[591] | 2017 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 2018 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 2019 | }
|
---|
[482] | 2020 | }
|
---|
| 2021 | }
|
---|
| 2022 |
|
---|
| 2023 |
|
---|
[517] | 2024 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2025 | {
|
---|
| 2026 | // convert to meshes
|
---|
| 2027 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2028 |
|
---|
| 2029 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2030 | {
|
---|
[517] | 2031 | if (!(*it)->GetMesh())
|
---|
[1001] | 2032 | {
|
---|
[517] | 2033 | CreateMesh(*it);
|
---|
[1001] | 2034 | }
|
---|
[503] | 2035 | }
|
---|
| 2036 | }
|
---|
| 2037 |
|
---|
[508] | 2038 |
|
---|
[944] | 2039 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2040 | const bool exportPvs,
|
---|
| 2041 | const ObjectContainer &objects)
|
---|
[564] | 2042 | {
|
---|
[508] | 2043 | return false;
|
---|
| 2044 | }
|
---|
| 2045 |
|
---|
| 2046 |
|
---|
[610] | 2047 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2048 | {
|
---|
[610] | 2049 | mNumActiveViewCells = n;
|
---|
| 2050 | mViewCells.clear();
|
---|
| 2051 | CollectViewCells();
|
---|
| 2052 | }
|
---|
[508] | 2053 |
|
---|
| 2054 |
|
---|
[660] | 2055 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2056 | {
|
---|
[882] | 2057 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2058 | // active view cells
|
---|
[660] | 2059 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2060 |
|
---|
[660] | 2061 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2062 | {
|
---|
[881] | 2063 | ViewCellContainer leaves;
|
---|
| 2064 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2065 |
|
---|
| 2066 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2067 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2068 | {
|
---|
| 2069 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2070 | }
|
---|
[660] | 2071 | }
|
---|
| 2072 | }
|
---|
[508] | 2073 |
|
---|
[840] | 2074 |
|
---|
| 2075 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2076 | {
|
---|
| 2077 | return mMaxFilterSize;
|
---|
| 2078 | }
|
---|
| 2079 |
|
---|
[1001] | 2080 |
|
---|
[840] | 2081 | static const bool USE_ASCII = true;
|
---|
| 2082 |
|
---|
[1001] | 2083 |
|
---|
[840] | 2084 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2085 | const ObjectContainer &objects) const
|
---|
| 2086 | {
|
---|
| 2087 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2088 |
|
---|
| 2089 | if (USE_ASCII)
|
---|
| 2090 | {
|
---|
| 2091 | ofstream boxesOut(filename.c_str());
|
---|
| 2092 | if (!boxesOut.is_open())
|
---|
| 2093 | return false;
|
---|
| 2094 |
|
---|
| 2095 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2096 | {
|
---|
| 2097 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2098 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2099 |
|
---|
| 2100 | boxesOut << mi->GetId() << " "
|
---|
| 2101 | << box.Min().x << " "
|
---|
| 2102 | << box.Min().y << " "
|
---|
| 2103 | << box.Min().z << " "
|
---|
| 2104 | << box.Max().x << " "
|
---|
| 2105 | << box.Max().y << " "
|
---|
| 2106 | << box.Max().z << endl;
|
---|
| 2107 | }
|
---|
| 2108 |
|
---|
| 2109 | boxesOut.close();
|
---|
| 2110 | }
|
---|
| 2111 | else
|
---|
| 2112 | {
|
---|
| 2113 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2114 |
|
---|
| 2115 | if (!boxesOut.is_open())
|
---|
| 2116 | return false;
|
---|
| 2117 |
|
---|
| 2118 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2119 | {
|
---|
| 2120 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2121 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2122 | Vector3 bmin = box.Min();
|
---|
| 2123 | Vector3 bmax = box.Max();
|
---|
[850] | 2124 | int id = mi->GetId();
|
---|
[840] | 2125 |
|
---|
[850] | 2126 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2127 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2128 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2129 | }
|
---|
| 2130 |
|
---|
| 2131 | boxesOut.close();
|
---|
| 2132 | }
|
---|
| 2133 |
|
---|
| 2134 | return true;
|
---|
| 2135 | }
|
---|
| 2136 |
|
---|
| 2137 |
|
---|
[850] | 2138 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2139 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2140 | {
|
---|
[850] | 2141 | Vector3 bmin, bmax;
|
---|
| 2142 | int id;
|
---|
[840] | 2143 |
|
---|
[850] | 2144 | if (USE_ASCII)
|
---|
[840] | 2145 | {
|
---|
[850] | 2146 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2147 |
|
---|
[850] | 2148 | if (!boxesIn.is_open())
|
---|
[840] | 2149 | {
|
---|
[850] | 2150 | cout << "failed to open file " << filename << endl;
|
---|
| 2151 | return false;
|
---|
[840] | 2152 | }
|
---|
[850] | 2153 |
|
---|
| 2154 | string buf;
|
---|
| 2155 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2156 | {
|
---|
[850] | 2157 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2158 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2159 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2160 |
|
---|
| 2161 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2162 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2163 | // HACK: set bounding box to new box
|
---|
| 2164 | //mi->mBox = box;
|
---|
| 2165 |
|
---|
| 2166 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2167 | }
|
---|
| 2168 |
|
---|
[850] | 2169 | boxesIn.close();
|
---|
[840] | 2170 | }
|
---|
[850] | 2171 | else
|
---|
[840] | 2172 | {
|
---|
[850] | 2173 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2174 |
|
---|
[850] | 2175 | if (!boxesIn.is_open())
|
---|
| 2176 | return false;
|
---|
| 2177 |
|
---|
| 2178 | while (1)
|
---|
[840] | 2179 | {
|
---|
[850] | 2180 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2181 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2182 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2183 |
|
---|
| 2184 | if (boxesIn.eof())
|
---|
| 2185 | break;
|
---|
| 2186 |
|
---|
| 2187 |
|
---|
| 2188 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2189 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2190 |
|
---|
| 2191 | // HACK: set bounding box to new box
|
---|
| 2192 | //mi->mBox = box;
|
---|
| 2193 | //boxes.push_back(mi);
|
---|
| 2194 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2195 | }
|
---|
| 2196 |
|
---|
[850] | 2197 | boxesIn.close();
|
---|
[840] | 2198 | }
|
---|
| 2199 |
|
---|
| 2200 | return true;
|
---|
[850] | 2201 | }
|
---|
[840] | 2202 |
|
---|
[931] | 2203 |
|
---|
| 2204 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2205 | {
|
---|
| 2206 | return mFilterWidth;
|
---|
| 2207 | }
|
---|
| 2208 |
|
---|
| 2209 |
|
---|
| 2210 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2211 | {
|
---|
| 2212 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2213 | }
|
---|
| 2214 |
|
---|
| 2215 |
|
---|
[1160] | 2216 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc, const int pvsSize, const int entriesInPvs) const
|
---|
[1002] | 2217 | {
|
---|
| 2218 | vc->mPvsSize = pvsSize;
|
---|
[1160] | 2219 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2220 |
|
---|
[1002] | 2221 | vc->mPvsSizeValid = true;
|
---|
| 2222 | }
|
---|
| 2223 |
|
---|
| 2224 |
|
---|
[1021] | 2225 | void
|
---|
| 2226 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2227 | KdTree *kdTree,
|
---|
| 2228 | const float viewSpaceFilterSize,
|
---|
| 2229 | const float spatialFilterSize,
|
---|
| 2230 | ObjectPvs &pvs
|
---|
| 2231 | )
|
---|
| 2232 | {
|
---|
| 2233 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2234 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2235 | // in the pvs
|
---|
| 2236 |
|
---|
| 2237 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2238 | // and compute the pvs union
|
---|
| 2239 |
|
---|
| 2240 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2241 | // Vector3 center = m->mBox.Center();
|
---|
| 2242 |
|
---|
| 2243 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2244 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 2245 | if (!ViewCellsConstructed())
|
---|
| 2246 | return;
|
---|
| 2247 |
|
---|
| 2248 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
| 2249 |
|
---|
| 2250 | bool usePrVS = false;
|
---|
| 2251 |
|
---|
| 2252 | if (!usePrVS) {
|
---|
| 2253 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2254 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 2255 |
|
---|
| 2256 | ViewCellContainer viewCells;
|
---|
| 2257 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2258 |
|
---|
| 2259 | // cout<<"box="<<box<<endl;
|
---|
| 2260 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2261 |
|
---|
| 2262 | int i;
|
---|
| 2263 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2264 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2265 | pvs.Merge((*it)->GetPvs());
|
---|
| 2266 | }
|
---|
| 2267 | } else {
|
---|
| 2268 | PrVs prvs;
|
---|
| 2269 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2270 |
|
---|
| 2271 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2272 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2273 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2274 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2275 | }
|
---|
| 2276 | } else
|
---|
| 2277 | pvs = viewCell->GetPvs();
|
---|
| 2278 |
|
---|
| 2279 | if (spatialFilterSize >=0.0f)
|
---|
| 2280 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2281 |
|
---|
| 2282 | }
|
---|
| 2283 |
|
---|
| 2284 |
|
---|
| 2285 |
|
---|
| 2286 | void
|
---|
| 2287 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2288 | const float relViewSpaceFilterSize,
|
---|
| 2289 | const float relSpatialFilterSize
|
---|
| 2290 | )
|
---|
| 2291 | {
|
---|
| 2292 |
|
---|
| 2293 | if (!ViewCellsConstructed())
|
---|
| 2294 | return;
|
---|
| 2295 |
|
---|
| 2296 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2297 |
|
---|
| 2298 | ObjectPvs *newPvs;
|
---|
| 2299 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 2300 |
|
---|
| 2301 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2302 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 2303 |
|
---|
| 2304 | int i;
|
---|
| 2305 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2306 | ApplyFilter(*it,
|
---|
| 2307 | kdTree,
|
---|
| 2308 | viewSpaceFilterSize,
|
---|
| 2309 | spatialFilterSize,
|
---|
| 2310 | newPvs[i]
|
---|
| 2311 | );
|
---|
| 2312 | }
|
---|
| 2313 |
|
---|
| 2314 | // now replace all pvss
|
---|
| 2315 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2316 |
|
---|
| 2317 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2318 | pvs.Clear();
|
---|
| 2319 | pvs = newPvs[i];
|
---|
| 2320 | newPvs[i].Clear();
|
---|
| 2321 | }
|
---|
| 2322 |
|
---|
| 2323 | delete [] newPvs;
|
---|
| 2324 | }
|
---|
| 2325 |
|
---|
| 2326 |
|
---|
| 2327 |
|
---|
| 2328 |
|
---|
| 2329 | void
|
---|
| 2330 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2331 | KdTree *kdTree,
|
---|
| 2332 | const float spatialFilterSize,
|
---|
| 2333 | ObjectPvs &pvs
|
---|
| 2334 | )
|
---|
| 2335 | {
|
---|
| 2336 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2337 | // extended boxes of visible objects
|
---|
| 2338 |
|
---|
| 2339 | Intersectable::NewMail();
|
---|
| 2340 |
|
---|
| 2341 | std::map<Intersectable *,
|
---|
| 2342 | PvsData<Intersectable *>,
|
---|
| 2343 | LtSample<Intersectable *> >::const_iterator oi;
|
---|
| 2344 |
|
---|
| 2345 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2346 | Intersectable *object = (*oi).first;
|
---|
| 2347 | object->Mail();
|
---|
| 2348 | }
|
---|
| 2349 |
|
---|
| 2350 | ObjectPvs nPvs;
|
---|
| 2351 | int nPvsSize=0;
|
---|
| 2352 | // now go through the pvs again
|
---|
| 2353 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2354 | Intersectable *object = (*oi).first;
|
---|
| 2355 |
|
---|
| 2356 | // Vector3 center = object->GetBox().Center();
|
---|
| 2357 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2358 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2359 |
|
---|
| 2360 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2361 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2362 |
|
---|
| 2363 | ObjectContainer objects;
|
---|
| 2364 |
|
---|
| 2365 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2366 | kdTree->CollectObjects(box,
|
---|
| 2367 | objects);
|
---|
| 2368 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2369 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2370 | for (; noi != objects.end(); ++noi) {
|
---|
| 2371 | Intersectable *o = *noi;
|
---|
| 2372 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2373 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2374 | nPvsSize++;
|
---|
| 2375 | }
|
---|
| 2376 | }
|
---|
| 2377 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2378 | pvs.Merge(nPvs);
|
---|
| 2379 | }
|
---|
| 2380 |
|
---|
| 2381 |
|
---|
| 2382 | void ViewCellsManager::ExportColor(Exporter *exporter, ViewCell *vc) const
|
---|
| 2383 | {
|
---|
| 2384 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2385 |
|
---|
| 2386 | float importance = 0;
|
---|
| 2387 | static Material m;
|
---|
| 2388 |
|
---|
| 2389 | switch (mColorCode)
|
---|
| 2390 | {
|
---|
| 2391 | case 0: // Random
|
---|
| 2392 | {
|
---|
| 2393 | if (vcValid)
|
---|
| 2394 | {
|
---|
| 2395 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2396 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2397 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2398 | }
|
---|
| 2399 | else
|
---|
| 2400 | {
|
---|
| 2401 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2402 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2403 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2404 | }
|
---|
| 2405 |
|
---|
| 2406 | exporter->SetForcedMaterial(m);
|
---|
| 2407 | return;
|
---|
| 2408 | }
|
---|
| 2409 |
|
---|
| 2410 | case 1: // pvs
|
---|
| 2411 | {
|
---|
| 2412 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2413 | {
|
---|
| 2414 | importance =
|
---|
[1142] | 2415 | (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
[1121] | 2416 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2417 | }
|
---|
[1021] | 2418 | }
|
---|
| 2419 | break;
|
---|
| 2420 | case 2: // merges
|
---|
| 2421 | {
|
---|
| 2422 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2423 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2424 | }
|
---|
| 2425 | break;
|
---|
| 2426 | #if 0
|
---|
| 2427 | case 3: // merge tree differene
|
---|
| 2428 | {
|
---|
| 2429 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2430 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2431 |
|
---|
| 2432 | }
|
---|
| 2433 | break;
|
---|
| 2434 | #endif
|
---|
| 2435 | default:
|
---|
| 2436 | break;
|
---|
| 2437 | }
|
---|
| 2438 |
|
---|
| 2439 | // special color code for invalid view cells
|
---|
| 2440 | m.mDiffuseColor.r = importance;
|
---|
| 2441 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2442 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2443 |
|
---|
| 2444 | //Debug << "importance: " << importance << endl;
|
---|
| 2445 | exporter->SetForcedMaterial(m);
|
---|
| 2446 | }
|
---|
| 2447 |
|
---|
| 2448 |
|
---|
[1022] | 2449 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2450 | vector<MergeCandidate> &candidates)
|
---|
| 2451 | {
|
---|
| 2452 | // implemented in subclasses
|
---|
| 2453 | }
|
---|
| 2454 |
|
---|
[1047] | 2455 |
|
---|
[1155] | 2456 | void ViewCellsManager::SetStoreKdPvs(const bool storeKdPvs)
|
---|
| 2457 | {
|
---|
| 2458 | mStoreKdPvs = storeKdPvs;
|
---|
| 2459 | }
|
---|
[1047] | 2460 |
|
---|
[1155] | 2461 |
|
---|
| 2462 | bool ViewCellsManager::GetStoreKdPVs() const
|
---|
| 2463 | {
|
---|
| 2464 | return mStoreKdPvs;
|
---|
| 2465 | }
|
---|
| 2466 |
|
---|
| 2467 |
|
---|
[1145] | 2468 | /*******************************************************************/
|
---|
| 2469 | /* BspViewCellsManager implementation */
|
---|
| 2470 | /*******************************************************************/
|
---|
[440] | 2471 |
|
---|
[482] | 2472 |
|
---|
[1004] | 2473 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 2474 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 2475 | {
|
---|
[1004] | 2476 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2477 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 2478 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 2479 | }
|
---|
| 2480 |
|
---|
[462] | 2481 |
|
---|
[440] | 2482 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2483 | {
|
---|
| 2484 | return mBspTree->GetRoot() != NULL;
|
---|
| 2485 | }
|
---|
| 2486 |
|
---|
[480] | 2487 |
|
---|
[440] | 2488 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2489 | {
|
---|
| 2490 | return new BspViewCell(mesh);
|
---|
| 2491 | }
|
---|
| 2492 |
|
---|
[480] | 2493 |
|
---|
[574] | 2494 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2495 | const VssRayContainer &rays)
|
---|
[440] | 2496 | {
|
---|
[441] | 2497 | // if view cells were already constructed
|
---|
[440] | 2498 | if (ViewCellsConstructed())
|
---|
| 2499 | return 0;
|
---|
| 2500 |
|
---|
| 2501 | int sampleContributions = 0;
|
---|
[503] | 2502 |
|
---|
[469] | 2503 | // construct view cells using the collected samples
|
---|
| 2504 | RayContainer constructionRays;
|
---|
| 2505 | VssRayContainer savedRays;
|
---|
[440] | 2506 |
|
---|
[574] | 2507 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 2508 |
|
---|
[469] | 2509 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2510 |
|
---|
[473] | 2511 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 2512 |
|
---|
[469] | 2513 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2514 | {
|
---|
[473] | 2515 | if (Random(1.0f) < prop)
|
---|
[469] | 2516 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2517 | else
|
---|
| 2518 | savedRays.push_back(*it);
|
---|
| 2519 | }
|
---|
[440] | 2520 |
|
---|
[503] | 2521 | if (mViewCells.empty())
|
---|
| 2522 | {
|
---|
| 2523 | // no view cells loaded
|
---|
[587] | 2524 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2525 | // collect final view cells
|
---|
| 2526 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2527 | }
|
---|
[469] | 2528 | else
|
---|
| 2529 | {
|
---|
| 2530 | mBspTree->Construct(mViewCells);
|
---|
| 2531 | }
|
---|
| 2532 |
|
---|
| 2533 | // destroy rays created only for construction
|
---|
| 2534 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2535 |
|
---|
[440] | 2536 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 2537 |
|
---|
| 2538 | //EvaluateViewCellsStats();
|
---|
[660] | 2539 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2540 |
|
---|
[469] | 2541 | // recast rest of the rays
|
---|
[649] | 2542 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2543 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2544 |
|
---|
[719] | 2545 | // real meshes are contructed at this stage
|
---|
| 2546 | if (0)
|
---|
| 2547 | {
|
---|
| 2548 | cout << "finalizing view cells ... ";
|
---|
| 2549 | FinalizeViewCells(true);
|
---|
| 2550 | cout << "finished" << endl;
|
---|
| 2551 | }
|
---|
| 2552 |
|
---|
[440] | 2553 | return sampleContributions;
|
---|
| 2554 | }
|
---|
| 2555 |
|
---|
[503] | 2556 |
|
---|
[480] | 2557 | void BspViewCellsManager::CollectViewCells()
|
---|
| 2558 | {
|
---|
[587] | 2559 | // view cells tree constructed
|
---|
| 2560 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 2561 | {
|
---|
[587] | 2562 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2563 | }
|
---|
| 2564 | else
|
---|
| 2565 | {
|
---|
| 2566 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 2567 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 2568 | mNumActiveViewCells);
|
---|
[587] | 2569 | }
|
---|
[480] | 2570 | }
|
---|
[468] | 2571 |
|
---|
[503] | 2572 |
|
---|
[471] | 2573 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2574 | {
|
---|
[471] | 2575 | // compute view cell area as subsititute for probability
|
---|
[591] | 2576 | if (1)
|
---|
| 2577 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2578 | else
|
---|
| 2579 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2580 | }
|
---|
[440] | 2581 |
|
---|
[503] | 2582 |
|
---|
[440] | 2583 |
|
---|
[468] | 2584 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2585 | const Vector3 &termination,
|
---|
| 2586 | ViewCellContainer &viewcells)
|
---|
[440] | 2587 | {
|
---|
[468] | 2588 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2589 | }
|
---|
| 2590 |
|
---|
| 2591 |
|
---|
[503] | 2592 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2593 | const VssRayContainer &rays)
|
---|
| 2594 | {
|
---|
[469] | 2595 | if (!ViewCellsConstructed())
|
---|
[441] | 2596 | {
|
---|
| 2597 | Debug << "view cells not constructed" << endl;
|
---|
| 2598 | return 0;
|
---|
| 2599 | }
|
---|
[590] | 2600 |
|
---|
| 2601 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 2602 | if (mViewCellsFinished)
|
---|
| 2603 | {
|
---|
| 2604 | FinalizeViewCells(true);
|
---|
| 2605 | EvaluateViewCellsStats();
|
---|
| 2606 |
|
---|
| 2607 | return 0;
|
---|
| 2608 | }
|
---|
| 2609 |
|
---|
[440] | 2610 | //-- post processing of bsp view cells
|
---|
[600] | 2611 |
|
---|
[440] | 2612 | int vcSize = 0;
|
---|
| 2613 | int pvsSize = 0;
|
---|
| 2614 |
|
---|
[591] | 2615 | //-- merge view cells
|
---|
[649] | 2616 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2617 | long startTime = GetTime();
|
---|
| 2618 |
|
---|
| 2619 | VssRayContainer postProcessRays;
|
---|
| 2620 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2621 |
|
---|
[592] | 2622 | if (mMergeViewCells)
|
---|
[591] | 2623 | {
|
---|
[660] | 2624 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2625 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2626 | }
|
---|
| 2627 | else
|
---|
| 2628 | {
|
---|
[660] | 2629 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2630 |
|
---|
[649] | 2631 | // create spatial merge hierarchy
|
---|
[752] | 2632 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2633 | mViewCellsTree->SetRoot(root);
|
---|
| 2634 |
|
---|
| 2635 | // compute pvs
|
---|
| 2636 | ObjectPvs pvs;
|
---|
| 2637 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2638 | }
|
---|
[440] | 2639 |
|
---|
[660] | 2640 | // export statistics after merge
|
---|
[666] | 2641 | if (1)
|
---|
| 2642 | {
|
---|
| 2643 | char mstats[100];
|
---|
[1004] | 2644 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2645 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2646 | }
|
---|
[650] | 2647 |
|
---|
[649] | 2648 | //-- stats and visualizations
|
---|
| 2649 | cout << "finished" << endl;
|
---|
[650] | 2650 | cout << "merged view cells in "
|
---|
[752] | 2651 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[440] | 2652 |
|
---|
[650] | 2653 | Debug << "Postprocessing: Merged view cells in "
|
---|
[752] | 2654 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
[649] | 2655 |
|
---|
[503] | 2656 |
|
---|
[660] | 2657 | //-- visualization and statistics
|
---|
[600] | 2658 | // reset view cells and stats
|
---|
[480] | 2659 | ResetViewCells();
|
---|
[660] | 2660 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2661 |
|
---|
[1121] | 2662 | // save color code
|
---|
| 2663 | const int savedColorCode = mColorCode;
|
---|
[605] | 2664 |
|
---|
[600] | 2665 | //BspLeaf::NewMail();
|
---|
| 2666 | if (1) // export merged view cells
|
---|
| 2667 | {
|
---|
| 2668 | mColorCode = 0;
|
---|
[605] | 2669 |
|
---|
[744] | 2670 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2671 |
|
---|
[600] | 2672 |
|
---|
| 2673 | cout << "exporting view cells after merge ... ";
|
---|
| 2674 |
|
---|
| 2675 | if (exporter)
|
---|
| 2676 | {
|
---|
| 2677 | if (mExportGeometry)
|
---|
| 2678 | exporter->ExportGeometry(objects);
|
---|
| 2679 |
|
---|
| 2680 | //exporter->SetWireframe();
|
---|
| 2681 | exporter->SetFilled();
|
---|
| 2682 | ExportViewCellsForViz(exporter);
|
---|
| 2683 |
|
---|
| 2684 |
|
---|
| 2685 | delete exporter;
|
---|
| 2686 | }
|
---|
| 2687 | cout << "finished" << endl;
|
---|
| 2688 | }
|
---|
| 2689 |
|
---|
[752] | 2690 | if (1) // export merged view cells using pvs color coding
|
---|
[600] | 2691 | {
|
---|
| 2692 | mColorCode = 1;
|
---|
| 2693 |
|
---|
[744] | 2694 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2695 |
|
---|
| 2696 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2697 |
|
---|
| 2698 | if (exporter)
|
---|
| 2699 | {
|
---|
| 2700 | //exporter->SetWireframe();
|
---|
[752] | 2701 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
| 2702 |
|
---|
[600] | 2703 | if (mExportGeometry)
|
---|
| 2704 | exporter->ExportGeometry(objects);
|
---|
| 2705 |
|
---|
| 2706 | //exporter->SetWireframe();
|
---|
| 2707 | exporter->SetFilled();
|
---|
| 2708 | ExportViewCellsForViz(exporter);
|
---|
| 2709 |
|
---|
| 2710 | delete exporter;
|
---|
| 2711 | }
|
---|
| 2712 | cout << "finished" << endl;
|
---|
| 2713 | }
|
---|
[693] | 2714 |
|
---|
[1122] | 2715 | // only for debugging purpose: test if the subdivision is valid
|
---|
| 2716 | if (0) TestSubdivision();
|
---|
[693] | 2717 |
|
---|
[600] | 2718 | mColorCode = savedColorCode;
|
---|
| 2719 |
|
---|
[719] | 2720 | // compute final meshes and volume / area
|
---|
| 2721 | if (1) FinalizeViewCells(true);
|
---|
| 2722 |
|
---|
[587] | 2723 | // write view cells to disc
|
---|
| 2724 | if (mExportViewCells)
|
---|
| 2725 | {
|
---|
[840] | 2726 | char filename[100];
|
---|
[1004] | 2727 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2728 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2729 | }
|
---|
[840] | 2730 |
|
---|
| 2731 | // export bounding boxes
|
---|
[931] | 2732 | if (0 && mExportBboxesForPvs)
|
---|
[840] | 2733 | {
|
---|
| 2734 | char filename[100];
|
---|
[1004] | 2735 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[840] | 2736 | ExportBoundingBoxes(filename, objects);
|
---|
| 2737 | }
|
---|
[587] | 2738 |
|
---|
[840] | 2739 |
|
---|
[650] | 2740 | return 0;
|
---|
[440] | 2741 | }
|
---|
| 2742 |
|
---|
[477] | 2743 |
|
---|
| 2744 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2745 | {
|
---|
| 2746 | }
|
---|
| 2747 |
|
---|
| 2748 |
|
---|
[440] | 2749 | int BspViewCellsManager::GetType() const
|
---|
| 2750 | {
|
---|
| 2751 | return BSP;
|
---|
| 2752 | }
|
---|
| 2753 |
|
---|
| 2754 |
|
---|
| 2755 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2756 | const VssRayContainer &sampleRays)
|
---|
[440] | 2757 | {
|
---|
[469] | 2758 | if (!ViewCellsConstructed())
|
---|
| 2759 | return;
|
---|
[574] | 2760 |
|
---|
[600] | 2761 | int savedColorCode = mColorCode;
|
---|
| 2762 |
|
---|
| 2763 |
|
---|
| 2764 | if (1) // export final view cells
|
---|
[440] | 2765 | {
|
---|
[1020] | 2766 | mColorCode = 1; // hack color code
|
---|
[822] | 2767 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 2768 |
|
---|
| 2769 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2770 |
|
---|
[469] | 2771 | if (exporter)
|
---|
[440] | 2772 | {
|
---|
[600] | 2773 | //exporter->SetWireframe();
|
---|
| 2774 |
|
---|
| 2775 | if (mExportGeometry)
|
---|
| 2776 | exporter->ExportGeometry(objects);
|
---|
[590] | 2777 |
|
---|
[801] | 2778 | //exporter->SetFilled();
|
---|
[1020] | 2779 | const bool b = mUseClipPlaneForViz;
|
---|
[801] | 2780 | mUseClipPlaneForViz = false;
|
---|
[1020] | 2781 |
|
---|
[508] | 2782 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 2783 |
|
---|
[801] | 2784 | mUseClipPlaneForViz = b;
|
---|
[469] | 2785 | delete exporter;
|
---|
[440] | 2786 | }
|
---|
[469] | 2787 | cout << "finished" << endl;
|
---|
[503] | 2788 | }
|
---|
[477] | 2789 |
|
---|
[600] | 2790 | mColorCode = savedColorCode;
|
---|
| 2791 |
|
---|
[469] | 2792 | //-- visualization of the BSP splits
|
---|
| 2793 | bool exportSplits = false;
|
---|
[1004] | 2794 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2795 |
|
---|
[469] | 2796 | if (exportSplits)
|
---|
[440] | 2797 | {
|
---|
[469] | 2798 | cout << "exporting splits ... ";
|
---|
[477] | 2799 | ExportSplits(objects);
|
---|
[469] | 2800 | cout << "finished" << endl;
|
---|
[440] | 2801 | }
|
---|
[477] | 2802 |
|
---|
[600] | 2803 | // export single view cells
|
---|
[477] | 2804 | ExportBspPvs(objects);
|
---|
[440] | 2805 | }
|
---|
| 2806 |
|
---|
| 2807 |
|
---|
[477] | 2808 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2809 | {
|
---|
| 2810 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2811 |
|
---|
[503] | 2812 | if (exporter)
|
---|
| 2813 | {
|
---|
[598] | 2814 | //exporter->SetFilled();
|
---|
| 2815 |
|
---|
| 2816 | if (mExportGeometry)
|
---|
| 2817 | exporter->ExportGeometry(objects);
|
---|
| 2818 |
|
---|
[503] | 2819 | Material m;
|
---|
[440] | 2820 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2821 | exporter->SetForcedMaterial(m);
|
---|
| 2822 | exporter->SetWireframe();
|
---|
[503] | 2823 |
|
---|
[440] | 2824 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2825 |
|
---|
[482] | 2826 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2827 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2828 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2829 | //exporter->ResetForcedMaterial();
|
---|
| 2830 |
|
---|
[440] | 2831 | delete exporter;
|
---|
| 2832 | }
|
---|
| 2833 | }
|
---|
| 2834 |
|
---|
[477] | 2835 |
|
---|
| 2836 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2837 | {
|
---|
[477] | 2838 | const int leafOut = 10;
|
---|
[503] | 2839 |
|
---|
[477] | 2840 | ViewCell::NewMail();
|
---|
[440] | 2841 |
|
---|
[477] | 2842 | //-- some rays for output
|
---|
| 2843 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2844 |
|
---|
[477] | 2845 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2846 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2847 |
|
---|
[997] | 2848 | // sort view cells in order to find the largest view cells
|
---|
[587] | 2849 | if (0)
|
---|
[801] | 2850 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[587] | 2851 |
|
---|
[503] | 2852 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2853 |
|
---|
[478] | 2854 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2855 | {
|
---|
[478] | 2856 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2857 | VssRayContainer vcRays;
|
---|
| 2858 | Intersectable::NewMail();
|
---|
[582] | 2859 | ViewCell *vc;
|
---|
| 2860 |
|
---|
| 2861 | if (0)
|
---|
| 2862 | vc = mViewCells[i];
|
---|
| 2863 | else
|
---|
| 2864 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2865 |
|
---|
[478] | 2866 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2867 |
|
---|
[587] | 2868 | if(0)
|
---|
[477] | 2869 | {
|
---|
[587] | 2870 | // check whether we can add the current ray to the output rays
|
---|
| 2871 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2872 | {
|
---|
[587] | 2873 | BspRay *ray = mBspRays[k];
|
---|
| 2874 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2875 | {
|
---|
| 2876 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2877 | if (vc == leaf->GetViewCell())
|
---|
| 2878 | vcRays.push_back(ray->vssRay);
|
---|
| 2879 | }
|
---|
[477] | 2880 | }
|
---|
| 2881 | }
|
---|
[587] | 2882 |
|
---|
[478] | 2883 | //bspLeaves[j]->Mail();
|
---|
| 2884 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2885 |
|
---|
[478] | 2886 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2887 |
|
---|
[478] | 2888 | exporter->SetWireframe();
|
---|
[477] | 2889 |
|
---|
[478] | 2890 | Material m;//= RandomMaterial();
|
---|
| 2891 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2892 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2893 |
|
---|
[587] | 2894 | ExportViewCellGeometry(exporter, vc);
|
---|
| 2895 |
|
---|
[478] | 2896 | // export rays piercing this view cell
|
---|
| 2897 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2898 |
|
---|
[478] | 2899 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2900 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2901 |
|
---|
[478] | 2902 | ObjectPvsMap::const_iterator it,
|
---|
| 2903 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2904 |
|
---|
[478] | 2905 | exporter->SetFilled();
|
---|
[469] | 2906 |
|
---|
[478] | 2907 | // output PVS of view cell
|
---|
[503] | 2908 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2909 | {
|
---|
| 2910 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2911 |
|
---|
[478] | 2912 | if (!intersect->Mailed())
|
---|
| 2913 | {
|
---|
| 2914 | Material m = RandomMaterial();
|
---|
| 2915 | exporter->SetForcedMaterial(m);
|
---|
| 2916 |
|
---|
| 2917 | exporter->ExportIntersectable(intersect);
|
---|
| 2918 | intersect->Mail();
|
---|
[503] | 2919 | }
|
---|
[477] | 2920 | }
|
---|
[503] | 2921 |
|
---|
[478] | 2922 | DEL_PTR(exporter);
|
---|
| 2923 | cout << "finished" << endl;
|
---|
[477] | 2924 | }
|
---|
| 2925 |
|
---|
| 2926 | Debug << endl;
|
---|
[440] | 2927 | }
|
---|
| 2928 |
|
---|
[441] | 2929 |
|
---|
[693] | 2930 | void BspViewCellsManager::TestSubdivision()
|
---|
| 2931 | {
|
---|
| 2932 | ViewCellContainer leaves;
|
---|
| 2933 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 2934 |
|
---|
| 2935 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2936 |
|
---|
| 2937 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 2938 | float subdivVol = 0;
|
---|
| 2939 | float newVol = 0;
|
---|
| 2940 |
|
---|
| 2941 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2942 | {
|
---|
| 2943 | BspNodeGeometry geom;
|
---|
| 2944 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2945 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2946 |
|
---|
| 2947 | const float lVol = geom.GetVolume();
|
---|
| 2948 |
|
---|
| 2949 | newVol += lVol;
|
---|
| 2950 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 2951 |
|
---|
[704] | 2952 | float thres = 0.9f;
|
---|
[694] | 2953 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 2954 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 2955 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 2956 | }
|
---|
| 2957 |
|
---|
| 2958 | Debug << "exact volume: " << vol << endl;
|
---|
| 2959 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 2960 | Debug << "new volume: " << newVol << endl;
|
---|
| 2961 | }
|
---|
| 2962 |
|
---|
| 2963 |
|
---|
[580] | 2964 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2965 | ViewCell *vc,
|
---|
[1047] | 2966 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 2967 | {
|
---|
[1027] | 2968 | // export mesh if available
|
---|
[482] | 2969 | if (vc->GetMesh())
|
---|
| 2970 | {
|
---|
[587] | 2971 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 2972 | return;
|
---|
[482] | 2973 | }
|
---|
[1027] | 2974 | // otherwise construct from leaves
|
---|
[660] | 2975 | if (clipPlane)
|
---|
[591] | 2976 | {
|
---|
[1047] | 2977 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 2978 |
|
---|
[726] | 2979 | ViewCellContainer leaves;
|
---|
| 2980 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2981 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 2982 |
|
---|
[726] | 2983 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 2984 | {
|
---|
[726] | 2985 | BspNodeGeometry geom;
|
---|
| 2986 |
|
---|
[681] | 2987 | BspNodeGeometry front;
|
---|
| 2988 | BspNodeGeometry back;
|
---|
[591] | 2989 |
|
---|
[726] | 2990 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2991 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 2992 |
|
---|
[726] | 2993 | const float eps = 0.00000001f;
|
---|
[1047] | 2994 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 2995 |
|
---|
| 2996 | if (cf == -1)
|
---|
| 2997 | {
|
---|
| 2998 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 2999 | }
|
---|
| 3000 | else if (cf == 0)
|
---|
| 3001 | {
|
---|
| 3002 | geom.SplitGeometry(front,
|
---|
| 3003 | back,
|
---|
[1047] | 3004 | plane,
|
---|
[726] | 3005 | mViewSpaceBox,
|
---|
| 3006 | eps);
|
---|
| 3007 |
|
---|
| 3008 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 3009 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 3010 | if (back.Valid())
|
---|
| 3011 | {
|
---|
| 3012 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3013 | }
|
---|
| 3014 | }
|
---|
[681] | 3015 | }
|
---|
[591] | 3016 | }
|
---|
| 3017 | else
|
---|
| 3018 | {
|
---|
[726] | 3019 | BspNodeGeometry geom;
|
---|
| 3020 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3021 |
|
---|
[678] | 3022 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 3023 | }
|
---|
[482] | 3024 | }
|
---|
| 3025 |
|
---|
[503] | 3026 |
|
---|
| 3027 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3028 | {
|
---|
[726] | 3029 | // delete previous mesh
|
---|
| 3030 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 3031 | BspNodeGeometry geom;
|
---|
| 3032 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3033 |
|
---|
[1001] | 3034 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3035 |
|
---|
[840] | 3036 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3037 | vc->SetMesh(mesh);
|
---|
[503] | 3038 | }
|
---|
| 3039 |
|
---|
[551] | 3040 |
|
---|
[587] | 3041 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3042 | const bool createMesh)
|
---|
[502] | 3043 | {
|
---|
[587] | 3044 | float area = 0;
|
---|
| 3045 | float volume = 0;
|
---|
[572] | 3046 |
|
---|
[587] | 3047 | ViewCellContainer leaves;
|
---|
| 3048 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3049 |
|
---|
| 3050 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3051 |
|
---|
[693] | 3052 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3053 | {
|
---|
| 3054 | BspNodeGeometry geom;
|
---|
| 3055 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3056 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3057 |
|
---|
[719] | 3058 | const float lVol = geom.GetVolume();
|
---|
| 3059 | const float lArea = geom.GetArea();
|
---|
[693] | 3060 |
|
---|
| 3061 | //(*it)->SetVolume(vol);
|
---|
| 3062 | //(*it)->SetArea(area);
|
---|
| 3063 |
|
---|
| 3064 | area += lArea;
|
---|
| 3065 | volume += lVol;
|
---|
| 3066 |
|
---|
| 3067 | CreateMesh(*it);
|
---|
[587] | 3068 | }
|
---|
| 3069 |
|
---|
| 3070 | viewCell->SetVolume(volume);
|
---|
| 3071 | viewCell->SetArea(area);
|
---|
[502] | 3072 | }
|
---|
| 3073 |
|
---|
[580] | 3074 |
|
---|
[879] | 3075 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3076 | {
|
---|
[1021] | 3077 | if (!ViewCellsConstructed())
|
---|
[587] | 3078 | return NULL;
|
---|
| 3079 |
|
---|
| 3080 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 3081 | return NULL;
|
---|
| 3082 |
|
---|
| 3083 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3084 | }
|
---|
| 3085 |
|
---|
| 3086 |
|
---|
[587] | 3087 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3088 | vector<MergeCandidate> &candidates)
|
---|
| 3089 | {
|
---|
| 3090 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3091 |
|
---|
| 3092 | if (mUseRaysForMerge)
|
---|
| 3093 | {
|
---|
| 3094 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3095 | }
|
---|
| 3096 | else
|
---|
| 3097 | {
|
---|
| 3098 | vector<BspLeaf *> leaves;
|
---|
| 3099 | mBspTree->CollectLeaves(leaves);
|
---|
| 3100 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3101 | }
|
---|
| 3102 |
|
---|
| 3103 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3104 | }
|
---|
| 3105 |
|
---|
| 3106 |
|
---|
[440] | 3107 |
|
---|
[1047] | 3108 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3109 | const bool exportPvs,
|
---|
| 3110 | const ObjectContainer &objects)
|
---|
[590] | 3111 | {
|
---|
[1077] | 3112 | #if TODO
|
---|
[590] | 3113 | cout << "exporting view cells to xml ... ";
|
---|
| 3114 | std::ofstream stream;
|
---|
[503] | 3115 |
|
---|
[590] | 3116 | // for output we need unique ids for each view cell
|
---|
| 3117 | CreateUniqueViewCellIds();
|
---|
[503] | 3118 |
|
---|
[590] | 3119 |
|
---|
| 3120 | stream.open(filename.c_str());
|
---|
| 3121 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3122 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3123 |
|
---|
| 3124 | //-- the view space bounding box
|
---|
| 3125 | stream << "<ViewSpaceBox"
|
---|
| 3126 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3127 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 3128 |
|
---|
| 3129 | //-- the type of the view cells hierarchy
|
---|
[975] | 3130 |
|
---|
[840] | 3131 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
[975] | 3132 | stream << "<Hierarchy name=\"vspBspTree\" >" << endl;
|
---|
[840] | 3133 |
|
---|
[590] | 3134 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 3135 | stream << "<ViewCells>" << endl;
|
---|
[610] | 3136 |
|
---|
[871] | 3137 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[590] | 3138 |
|
---|
| 3139 | stream << "</ViewCells>" << endl;
|
---|
| 3140 |
|
---|
| 3141 | //-- load the hierarchy
|
---|
| 3142 | stream << "<Hierarchy>" << endl;
|
---|
| 3143 | mBspTree->Export(stream);
|
---|
| 3144 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 3145 |
|
---|
[975] | 3146 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3147 | stream.close();
|
---|
| 3148 |
|
---|
| 3149 | cout << "finished" << endl;
|
---|
[955] | 3150 | #endif
|
---|
[590] | 3151 | return true;
|
---|
| 3152 | }
|
---|
| 3153 |
|
---|
| 3154 |
|
---|
[650] | 3155 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3156 | {
|
---|
[752] | 3157 | // terminate recursion
|
---|
[650] | 3158 | if (root->IsLeaf())
|
---|
| 3159 | {
|
---|
[752] | 3160 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3161 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3162 | return leaf->GetViewCell();
|
---|
[650] | 3163 | }
|
---|
| 3164 |
|
---|
| 3165 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3166 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3167 |
|
---|
[752] | 3168 | // evaluate merge cost for priority traversal
|
---|
[650] | 3169 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3170 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3171 |
|
---|
[650] | 3172 | float volume = 0;
|
---|
[649] | 3173 |
|
---|
[650] | 3174 | BspNode *front = interior->GetFront();
|
---|
| 3175 | BspNode *back = interior->GetBack();
|
---|
[649] | 3176 |
|
---|
[752] | 3177 |
|
---|
| 3178 | //-- recursivly compute child hierarchies
|
---|
[650] | 3179 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3180 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3181 |
|
---|
[752] | 3182 |
|
---|
| 3183 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3184 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3185 |
|
---|
[650] | 3186 | volume += backVc->GetVolume();
|
---|
| 3187 | volume += frontVc->GetVolume();
|
---|
[649] | 3188 |
|
---|
[650] | 3189 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3190 |
|
---|
[650] | 3191 | return viewCellInterior;
|
---|
[610] | 3192 | }
|
---|
| 3193 |
|
---|
[650] | 3194 |
|
---|
[752] | 3195 | void BspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 3196 | {
|
---|
| 3197 | // terminate traversal
|
---|
| 3198 | if (root->IsLeaf())
|
---|
| 3199 | {
|
---|
| 3200 | pvs = root->GetPvs();
|
---|
[1160] | 3201 | UpdateScalarPvsSize(root, pvs.CountPvs(), pvs.GetSize());
|
---|
[1002] | 3202 |
|
---|
[752] | 3203 | return;
|
---|
| 3204 | }
|
---|
| 3205 |
|
---|
| 3206 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 3207 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 3208 |
|
---|
| 3209 | vector<ObjectPvs> pvsList;
|
---|
| 3210 |
|
---|
| 3211 |
|
---|
| 3212 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 3213 | {
|
---|
| 3214 | ObjectPvs objPvs;
|
---|
| 3215 |
|
---|
| 3216 | //-- recursivly compute child pvss
|
---|
| 3217 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 3218 |
|
---|
| 3219 | // store pvs in vector
|
---|
| 3220 | pvsList.push_back(objPvs);
|
---|
| 3221 | }
|
---|
| 3222 |
|
---|
| 3223 | #if 1
|
---|
| 3224 | Intersectable::NewMail();
|
---|
| 3225 |
|
---|
| 3226 | //-- faster way of computing pvs:
|
---|
| 3227 | // construct merged pvs by adding
|
---|
| 3228 | // and only those of the next pvs which were not mailed.
|
---|
| 3229 | // note: sumpdf is not correct!!
|
---|
| 3230 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 3231 |
|
---|
| 3232 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 3233 | {
|
---|
| 3234 |
|
---|
| 3235 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 3236 |
|
---|
| 3237 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 3238 | {
|
---|
| 3239 |
|
---|
| 3240 | Intersectable *intersect = (*pit).first;
|
---|
| 3241 |
|
---|
| 3242 | if (!intersect->Mailed())
|
---|
| 3243 | {
|
---|
| 3244 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 3245 | intersect->Mail();
|
---|
| 3246 | }
|
---|
| 3247 | }
|
---|
| 3248 | }
|
---|
| 3249 |
|
---|
| 3250 | // store pvs in this node
|
---|
| 3251 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 3252 | {
|
---|
[1002] | 3253 | interior->SetPvs(pvs);
|
---|
[752] | 3254 | }
|
---|
| 3255 |
|
---|
[1160] | 3256 | // set correct pvs size for interior
|
---|
| 3257 | UpdateScalarPvsSize(interior, pvs.CountPvs(), pvs.GetSize());
|
---|
[752] | 3258 |
|
---|
| 3259 | #else
|
---|
[1021] | 3260 | // really merge cells: slow nut sumpdf is correct
|
---|
[752] | 3261 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3262 |
|
---|
| 3263 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 3264 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 3265 | #endif
|
---|
| 3266 |
|
---|
| 3267 | }
|
---|
| 3268 |
|
---|
[590] | 3269 | /************************************************************************/
|
---|
| 3270 | /* KdViewCellsManager implementation */
|
---|
| 3271 | /************************************************************************/
|
---|
| 3272 |
|
---|
| 3273 |
|
---|
| 3274 |
|
---|
[1004] | 3275 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
| 3276 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3277 | {
|
---|
| 3278 | }
|
---|
| 3279 |
|
---|
[605] | 3280 |
|
---|
[471] | 3281 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3282 | {
|
---|
[479] | 3283 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3284 | if (0)
|
---|
| 3285 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3286 | else
|
---|
| 3287 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3288 | }
|
---|
| 3289 |
|
---|
| 3290 |
|
---|
| 3291 |
|
---|
[479] | 3292 |
|
---|
[480] | 3293 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3294 | {
|
---|
| 3295 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3296 | }
|
---|
[479] | 3297 |
|
---|
[519] | 3298 |
|
---|
[574] | 3299 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3300 | const VssRayContainer &rays)
|
---|
[440] | 3301 | {
|
---|
[441] | 3302 | // if view cells already constructed
|
---|
[440] | 3303 | if (ViewCellsConstructed())
|
---|
| 3304 | return 0;
|
---|
[441] | 3305 |
|
---|
[440] | 3306 | mKdTree->Construct();
|
---|
| 3307 |
|
---|
[480] | 3308 | mTotalAreaValid = false;
|
---|
[469] | 3309 | // create the view cells
|
---|
| 3310 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 3311 |
|
---|
[480] | 3312 | // cast rays
|
---|
[574] | 3313 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3314 |
|
---|
[479] | 3315 | EvaluateViewCellsStats();
|
---|
[660] | 3316 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3317 |
|
---|
[440] | 3318 | return 0;
|
---|
| 3319 | }
|
---|
| 3320 |
|
---|
[587] | 3321 |
|
---|
[440] | 3322 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3323 | {
|
---|
| 3324 | return mKdTree->GetRoot() != NULL;
|
---|
| 3325 | }
|
---|
| 3326 |
|
---|
[1020] | 3327 |
|
---|
[503] | 3328 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3329 | const VssRayContainer &rays)
|
---|
[440] | 3330 | {
|
---|
| 3331 | return 0;
|
---|
| 3332 | }
|
---|
| 3333 |
|
---|
[1020] | 3334 |
|
---|
[440] | 3335 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3336 | const VssRayContainer &sampleRays)
|
---|
[440] | 3337 | {
|
---|
[441] | 3338 | if (!ViewCellsConstructed())
|
---|
| 3339 | return;
|
---|
| 3340 |
|
---|
[469] | 3341 | // using view cells instead of the kd PVS of objects
|
---|
| 3342 | const bool useViewCells = true;
|
---|
| 3343 | bool exportRays = false;
|
---|
[440] | 3344 |
|
---|
| 3345 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3346 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3347 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3348 |
|
---|
[469] | 3349 | if (useViewCells)
|
---|
[440] | 3350 | {
|
---|
[469] | 3351 | const int leafOut = 10;
|
---|
[503] | 3352 |
|
---|
[469] | 3353 | ViewCell::NewMail();
|
---|
[503] | 3354 |
|
---|
[469] | 3355 | //-- some rays for output
|
---|
| 3356 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3357 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3358 |
|
---|
| 3359 | //-- some random view cells and rays for output
|
---|
| 3360 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3361 |
|
---|
[469] | 3362 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3363 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3364 |
|
---|
[469] | 3365 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3366 | {
|
---|
[469] | 3367 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3368 | RayContainer vcRays;
|
---|
[503] | 3369 |
|
---|
[469] | 3370 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3371 | #if 0
|
---|
[469] | 3372 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3373 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3374 | {
|
---|
[469] | 3375 | Ray *ray = sampleRays[k];
|
---|
[503] | 3376 |
|
---|
[469] | 3377 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3378 | {
|
---|
| 3379 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3380 |
|
---|
| 3381 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3382 | {
|
---|
| 3383 | vcRays.push_back(ray);
|
---|
| 3384 | }
|
---|
| 3385 | }
|
---|
[479] | 3386 | }
|
---|
[503] | 3387 | #endif
|
---|
[469] | 3388 | Intersectable::NewMail();
|
---|
[503] | 3389 |
|
---|
[469] | 3390 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 3391 |
|
---|
[469] | 3392 | //bspLeaves[j]->Mail();
|
---|
| 3393 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 3394 |
|
---|
[469] | 3395 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3396 | exporter->SetFilled();
|
---|
| 3397 |
|
---|
| 3398 | exporter->SetWireframe();
|
---|
| 3399 | //exporter->SetFilled();
|
---|
[503] | 3400 |
|
---|
[469] | 3401 | Material m;//= RandomMaterial();
|
---|
| 3402 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3403 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3404 |
|
---|
[469] | 3405 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3406 | exporter->ExportBox(box);
|
---|
| 3407 |
|
---|
| 3408 | // export rays piercing this view cell
|
---|
[503] | 3409 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3410 |
|
---|
[469] | 3411 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3412 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3413 |
|
---|
[469] | 3414 | // exporter->SetWireframe();
|
---|
| 3415 | exporter->SetFilled();
|
---|
[503] | 3416 |
|
---|
[469] | 3417 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3418 | // -- output PVS of view cell
|
---|
[503] | 3419 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3420 | {
|
---|
| 3421 | Intersectable *intersect = (*it).first;
|
---|
| 3422 | if (!intersect->Mailed())
|
---|
| 3423 | {
|
---|
| 3424 | exporter->ExportIntersectable(intersect);
|
---|
| 3425 | intersect->Mail();
|
---|
[503] | 3426 | }
|
---|
[440] | 3427 | }
|
---|
[503] | 3428 |
|
---|
[469] | 3429 | DEL_PTR(exporter);
|
---|
| 3430 | cout << "finished" << endl;
|
---|
[440] | 3431 | }
|
---|
[469] | 3432 |
|
---|
| 3433 | DEL_PTR(rays);
|
---|
[440] | 3434 | }
|
---|
[469] | 3435 | else // using kd PVS of objects
|
---|
| 3436 | {
|
---|
| 3437 | for (int i = 0; i < limit; ++ i)
|
---|
| 3438 | {
|
---|
| 3439 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3440 |
|
---|
[469] | 3441 | // check whether we can add this to the rays
|
---|
[503] | 3442 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3443 | {
|
---|
| 3444 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3445 | {
|
---|
| 3446 | rays[j].push_back(ray);
|
---|
| 3447 | }
|
---|
| 3448 | }
|
---|
| 3449 | }
|
---|
[440] | 3450 |
|
---|
[503] | 3451 | if (exportRays)
|
---|
[469] | 3452 | {
|
---|
| 3453 | Exporter *exporter = NULL;
|
---|
| 3454 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3455 | exporter->SetWireframe();
|
---|
| 3456 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3457 |
|
---|
[728] | 3458 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3459 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3460 |
|
---|
| 3461 | exporter->SetFilled();
|
---|
[503] | 3462 |
|
---|
[469] | 3463 | delete exporter;
|
---|
| 3464 | }
|
---|
[440] | 3465 |
|
---|
[503] | 3466 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3467 | {
|
---|
| 3468 | Intersectable *object = objects[k];
|
---|
[503] | 3469 | char s[64];
|
---|
[469] | 3470 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 3471 |
|
---|
[469] | 3472 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3473 | exporter->SetWireframe();
|
---|
[503] | 3474 |
|
---|
[469] | 3475 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 3476 | Intersectable::NewMail();
|
---|
[503] | 3477 |
|
---|
[469] | 3478 | // avoid adding the object to the list
|
---|
| 3479 | object->Mail();
|
---|
| 3480 | ObjectContainer visibleObjects;
|
---|
[503] | 3481 |
|
---|
| 3482 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3483 | {
|
---|
| 3484 | KdNode *node = (*i).first;
|
---|
| 3485 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3486 |
|
---|
[469] | 3487 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3488 | }
|
---|
[503] | 3489 |
|
---|
[469] | 3490 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3491 | exporter->SetFilled();
|
---|
[503] | 3492 |
|
---|
[469] | 3493 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3494 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3495 |
|
---|
[469] | 3496 | Material m;
|
---|
| 3497 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3498 | exporter->SetForcedMaterial(m);
|
---|
| 3499 | exporter->ExportIntersectable(object);
|
---|
[503] | 3500 |
|
---|
[469] | 3501 | delete exporter;
|
---|
[440] | 3502 | }
|
---|
[503] | 3503 | }
|
---|
[440] | 3504 | }
|
---|
| 3505 |
|
---|
[469] | 3506 |
|
---|
[580] | 3507 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3508 | {
|
---|
| 3509 | return new KdViewCell(mesh);
|
---|
| 3510 | }
|
---|
[482] | 3511 |
|
---|
[580] | 3512 |
|
---|
| 3513 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3514 | ViewCell *vc,
|
---|
[1047] | 3515 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 3516 | {
|
---|
[580] | 3517 | ViewCellContainer leaves;
|
---|
[485] | 3518 |
|
---|
[580] | 3519 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3520 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3521 |
|
---|
| 3522 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3523 | {
|
---|
| 3524 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 3525 |
|
---|
| 3526 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 3527 | }
|
---|
[482] | 3528 | }
|
---|
| 3529 |
|
---|
| 3530 |
|
---|
[440] | 3531 | int KdViewCellsManager::GetType() const
|
---|
| 3532 | {
|
---|
| 3533 | return ViewCellsManager::KD;
|
---|
| 3534 | }
|
---|
| 3535 |
|
---|
| 3536 |
|
---|
[441] | 3537 |
|
---|
[440] | 3538 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3539 | {
|
---|
| 3540 | KdNode *node = leaf;
|
---|
| 3541 |
|
---|
| 3542 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3543 | node = node->mParent;
|
---|
| 3544 | return node;
|
---|
| 3545 | }
|
---|
| 3546 |
|
---|
[469] | 3547 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3548 | const Vector3 &termination,
|
---|
| 3549 | ViewCellContainer &viewcells)
|
---|
[466] | 3550 | {
|
---|
[469] | 3551 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3552 | }
|
---|
| 3553 |
|
---|
[469] | 3554 |
|
---|
[503] | 3555 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3556 | {
|
---|
[551] | 3557 | // TODO
|
---|
[503] | 3558 | }
|
---|
| 3559 |
|
---|
[580] | 3560 |
|
---|
| 3561 |
|
---|
| 3562 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3563 | vector<MergeCandidate> &candidates)
|
---|
| 3564 | {
|
---|
| 3565 | // TODO
|
---|
| 3566 | }
|
---|
| 3567 |
|
---|
[1021] | 3568 |
|
---|
| 3569 |
|
---|
| 3570 |
|
---|
[503] | 3571 | /**************************************************************************/
|
---|
| 3572 | /* VspBspViewCellsManager implementation */
|
---|
| 3573 | /**************************************************************************/
|
---|
[482] | 3574 |
|
---|
[503] | 3575 |
|
---|
[1004] | 3576 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 3577 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 3578 | {
|
---|
[1004] | 3579 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3580 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3581 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3582 | }
|
---|
| 3583 |
|
---|
[477] | 3584 |
|
---|
[475] | 3585 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3586 | {
|
---|
| 3587 | }
|
---|
| 3588 |
|
---|
[477] | 3589 |
|
---|
[471] | 3590 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3591 | {
|
---|
[551] | 3592 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3593 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3594 | else
|
---|
| 3595 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3596 | }
|
---|
| 3597 |
|
---|
[477] | 3598 |
|
---|
[480] | 3599 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3600 | {
|
---|
[581] | 3601 | // view cells tree constructed
|
---|
| 3602 | if (!ViewCellsTreeConstructed())
|
---|
| 3603 | {
|
---|
[590] | 3604 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3605 | }
|
---|
| 3606 | else
|
---|
[664] | 3607 | { // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3608 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3609 | }
|
---|
[480] | 3610 | }
|
---|
| 3611 |
|
---|
| 3612 |
|
---|
[1021] | 3613 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3614 | vector<MergeCandidate> &candidates)
|
---|
| 3615 | {
|
---|
| 3616 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3617 |
|
---|
| 3618 | if (mUseRaysForMerge)
|
---|
| 3619 | {
|
---|
| 3620 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3621 | }
|
---|
| 3622 | else
|
---|
| 3623 | {
|
---|
| 3624 | vector<BspLeaf *> leaves;
|
---|
| 3625 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3626 |
|
---|
| 3627 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3628 | }
|
---|
| 3629 |
|
---|
| 3630 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3631 | }
|
---|
| 3632 |
|
---|
| 3633 |
|
---|
[442] | 3634 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3635 | {
|
---|
| 3636 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3637 | }
|
---|
| 3638 |
|
---|
[462] | 3639 |
|
---|
[442] | 3640 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3641 | {
|
---|
| 3642 | return new BspViewCell(mesh);
|
---|
| 3643 | }
|
---|
| 3644 |
|
---|
[569] | 3645 |
|
---|
[574] | 3646 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3647 | const VssRayContainer &rays)
|
---|
[442] | 3648 | {
|
---|
[710] | 3649 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3650 |
|
---|
[503] | 3651 | // if view cells were already constructed
|
---|
| 3652 | if (ViewCellsConstructed())
|
---|
| 3653 | return 0;
|
---|
[442] | 3654 |
|
---|
[503] | 3655 | int sampleContributions = 0;
|
---|
| 3656 |
|
---|
| 3657 | VssRayContainer sampleRays;
|
---|
| 3658 |
|
---|
[574] | 3659 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3660 |
|
---|
[469] | 3661 | VssRayContainer constructionRays;
|
---|
| 3662 | VssRayContainer savedRays;
|
---|
[442] | 3663 |
|
---|
[660] | 3664 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3665 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3666 |
|
---|
[574] | 3667 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3668 |
|
---|
[574] | 3669 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3670 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3671 |
|
---|
[1002] | 3672 | long startTime;
|
---|
[564] | 3673 |
|
---|
[667] | 3674 | if (1)
|
---|
| 3675 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[666] | 3676 | else
|
---|
[667] | 3677 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
| 3678 |
|
---|
[490] | 3679 | // collapse invalid regions
|
---|
[491] | 3680 | cout << "collapsing invalid tree regions ... ";
|
---|
[1002] | 3681 | startTime = GetTime();
|
---|
| 3682 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3683 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3684 | << " seconds" << endl;
|
---|
| 3685 |
|
---|
[495] | 3686 | cout << "finished" << endl;
|
---|
[503] | 3687 |
|
---|
[1002] | 3688 | //-- stats
|
---|
[660] | 3689 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3690 |
|
---|
[480] | 3691 | ResetViewCells();
|
---|
[660] | 3692 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3693 |
|
---|
[491] | 3694 |
|
---|
[495] | 3695 | startTime = GetTime();
|
---|
[503] | 3696 |
|
---|
[491] | 3697 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3698 |
|
---|
[469] | 3699 | // recast rest of rays
|
---|
[605] | 3700 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3701 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3702 |
|
---|
[491] | 3703 | cout << "finished" << endl;
|
---|
| 3704 |
|
---|
[503] | 3705 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3706 | << " secs" << endl;
|
---|
[442] | 3707 |
|
---|
[485] | 3708 | cout << "construction finished" << endl;
|
---|
[503] | 3709 |
|
---|
[1077] | 3710 |
|
---|
[719] | 3711 | if (0)
|
---|
| 3712 | {
|
---|
[1077] | 3713 | //-- real meshes are contructed at this stage
|
---|
[719] | 3714 | cout << "finalizing view cells ... ";
|
---|
| 3715 | FinalizeViewCells(true);
|
---|
| 3716 | cout << "finished" << endl;
|
---|
| 3717 | }
|
---|
| 3718 |
|
---|
[442] | 3719 | return sampleContributions;
|
---|
| 3720 | }
|
---|
| 3721 |
|
---|
[489] | 3722 |
|
---|
[503] | 3723 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3724 | const ObjectContainer &objects)
|
---|
[475] | 3725 | {
|
---|
[442] | 3726 | int vcSize = 0;
|
---|
| 3727 | int pvsSize = 0;
|
---|
| 3728 |
|
---|
[650] | 3729 | //-- merge view cells
|
---|
| 3730 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3731 | long startTime = GetTime();
|
---|
| 3732 |
|
---|
| 3733 |
|
---|
[597] | 3734 | if (mMergeViewCells)
|
---|
| 3735 | {
|
---|
| 3736 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3737 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3738 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3739 | }
|
---|
| 3740 | else
|
---|
| 3741 | {
|
---|
[710] | 3742 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3743 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3744 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3745 |
|
---|
| 3746 | // compute pvs
|
---|
| 3747 | ObjectPvs pvs;
|
---|
| 3748 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3749 | }
|
---|
[442] | 3750 |
|
---|
[666] | 3751 | if (1)
|
---|
| 3752 | {
|
---|
| 3753 | char mstats[100];
|
---|
[752] | 3754 | ObjectPvs pvs;
|
---|
| 3755 |
|
---|
[1004] | 3756 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3757 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3758 | }
|
---|
[485] | 3759 |
|
---|
[650] | 3760 | //-- stats and visualizations
|
---|
| 3761 | cout << "finished merging" << endl;
|
---|
| 3762 | cout << "merged view cells in "
|
---|
| 3763 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3764 |
|
---|
[650] | 3765 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3766 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3767 |
|
---|
| 3768 |
|
---|
[600] | 3769 | int savedColorCode = mColorCode;
|
---|
| 3770 |
|
---|
[660] | 3771 | // get currently active view cell set
|
---|
| 3772 | ResetViewCells();
|
---|
| 3773 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3774 |
|
---|
[485] | 3775 | //BspLeaf::NewMail();
|
---|
[667] | 3776 | if (1) // export merged view cells
|
---|
[483] | 3777 | {
|
---|
[600] | 3778 | mColorCode = 0;
|
---|
[744] | 3779 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3780 |
|
---|
[485] | 3781 | cout << "exporting view cells after merge ... ";
|
---|
| 3782 |
|
---|
| 3783 | if (exporter)
|
---|
[483] | 3784 | {
|
---|
[600] | 3785 | if (0)
|
---|
| 3786 | exporter->SetWireframe();
|
---|
| 3787 | else
|
---|
| 3788 | exporter->SetFilled();
|
---|
| 3789 |
|
---|
| 3790 | ExportViewCellsForViz(exporter);
|
---|
| 3791 |
|
---|
[485] | 3792 | if (mExportGeometry)
|
---|
[483] | 3793 | {
|
---|
[485] | 3794 | Material m;
|
---|
| 3795 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3796 | exporter->SetForcedMaterial(m);
|
---|
| 3797 | exporter->SetFilled();
|
---|
[442] | 3798 |
|
---|
[485] | 3799 | exporter->ExportGeometry(objects);
|
---|
[442] | 3800 | }
|
---|
[485] | 3801 |
|
---|
[600] | 3802 | delete exporter;
|
---|
| 3803 | }
|
---|
| 3804 | cout << "finished" << endl;
|
---|
| 3805 | }
|
---|
| 3806 |
|
---|
[1077] | 3807 | if (0) // export merged view cells using pvs coding
|
---|
[600] | 3808 | {
|
---|
| 3809 | mColorCode = 1;
|
---|
| 3810 |
|
---|
[744] | 3811 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 3812 |
|
---|
| 3813 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3814 |
|
---|
| 3815 | if (exporter)
|
---|
| 3816 | {
|
---|
[598] | 3817 | if (0)
|
---|
| 3818 | exporter->SetWireframe();
|
---|
| 3819 | else
|
---|
| 3820 | exporter->SetFilled();
|
---|
| 3821 |
|
---|
| 3822 | ExportViewCellsForViz(exporter);
|
---|
| 3823 |
|
---|
[600] | 3824 | if (mExportGeometry)
|
---|
| 3825 | {
|
---|
| 3826 | Material m;
|
---|
| 3827 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3828 | exporter->SetForcedMaterial(m);
|
---|
| 3829 | exporter->SetFilled();
|
---|
| 3830 |
|
---|
| 3831 | exporter->ExportGeometry(objects);
|
---|
| 3832 | }
|
---|
| 3833 |
|
---|
[485] | 3834 | delete exporter;
|
---|
[442] | 3835 | }
|
---|
[485] | 3836 | cout << "finished" << endl;
|
---|
[442] | 3837 | }
|
---|
[600] | 3838 |
|
---|
| 3839 | mColorCode = savedColorCode;
|
---|
| 3840 |
|
---|
[503] | 3841 | }
|
---|
[475] | 3842 |
|
---|
[503] | 3843 |
|
---|
[609] | 3844 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3845 | {
|
---|
[609] | 3846 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3847 | }
|
---|
| 3848 |
|
---|
| 3849 |
|
---|
[609] | 3850 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3851 | {
|
---|
| 3852 | if (!viewCell->IsLeaf())
|
---|
| 3853 | {
|
---|
| 3854 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3855 |
|
---|
[609] | 3856 | return bspVc->mLeaf;
|
---|
| 3857 | }
|
---|
[607] | 3858 | else
|
---|
| 3859 | {
|
---|
| 3860 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3861 |
|
---|
| 3862 | // cannot be node of binary tree
|
---|
| 3863 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3864 | return NULL;
|
---|
[607] | 3865 |
|
---|
| 3866 | ViewCell *left = interior->mChildren[0];
|
---|
| 3867 | ViewCell *right = interior->mChildren[1];
|
---|
| 3868 |
|
---|
[609] | 3869 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3870 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3871 |
|
---|
[609] | 3872 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3873 | {
|
---|
[609] | 3874 | return leftNode->GetParent();
|
---|
[607] | 3875 | }
|
---|
[609] | 3876 | }
|
---|
[607] | 3877 |
|
---|
[609] | 3878 | return NULL;
|
---|
[607] | 3879 | }
|
---|
| 3880 |
|
---|
| 3881 |
|
---|
[564] | 3882 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3883 | const ObjectContainer &objects)
|
---|
[503] | 3884 | {
|
---|
[485] | 3885 | Debug << "render time before refine:" << endl;
|
---|
| 3886 | mRenderer->RenderScene();
|
---|
[503] | 3887 | SimulationStatistics ss;
|
---|
[485] | 3888 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3889 | Debug << ss << endl;
|
---|
| 3890 |
|
---|
[489] | 3891 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3892 | long startTime = GetTime();
|
---|
[485] | 3893 |
|
---|
| 3894 | // refining the merged view cells
|
---|
[580] | 3895 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3896 |
|
---|
[442] | 3897 | //-- stats and visualizations
|
---|
| 3898 | cout << "finished" << endl;
|
---|
[485] | 3899 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3900 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3901 |
|
---|
[485] | 3902 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3903 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3904 | }
|
---|
[495] | 3905 |
|
---|
[517] | 3906 |
|
---|
[503] | 3907 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3908 | const VssRayContainer &rays)
|
---|
[840] | 3909 | {
|
---|
[503] | 3910 | if (!ViewCellsConstructed())
|
---|
| 3911 | {
|
---|
[517] | 3912 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3913 | return 0;
|
---|
| 3914 | }
|
---|
[520] | 3915 |
|
---|
[564] | 3916 |
|
---|
[609] | 3917 | // view cells already finished before post processing step
|
---|
| 3918 | // (i.e. because they were loaded)
|
---|
[520] | 3919 | if (mViewCellsFinished)
|
---|
[542] | 3920 | {
|
---|
[551] | 3921 | FinalizeViewCells(true);
|
---|
[542] | 3922 | EvaluateViewCellsStats();
|
---|
[577] | 3923 |
|
---|
[517] | 3924 | return 0;
|
---|
[542] | 3925 | }
|
---|
[448] | 3926 |
|
---|
[710] | 3927 | // check if new view cells turned invalid
|
---|
| 3928 | int minPvs, maxPvs;
|
---|
[564] | 3929 |
|
---|
[710] | 3930 | if (0)
|
---|
| 3931 | {
|
---|
| 3932 | minPvs = mMinPvsSize;
|
---|
| 3933 | maxPvs = mMaxPvsSize;
|
---|
| 3934 | }
|
---|
| 3935 | else
|
---|
| 3936 | {
|
---|
| 3937 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3938 | maxPvs = mMaxPvsSize;
|
---|
| 3939 | }
|
---|
[720] | 3940 |
|
---|
[710] | 3941 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3942 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3943 |
|
---|
| 3944 | SetValidity(minPvs, maxPvs);
|
---|
| 3945 |
|
---|
[574] | 3946 | // update valid view space according to valid view cells
|
---|
[720] | 3947 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3948 |
|
---|
[720] | 3949 | // area has to be recomputed
|
---|
[574] | 3950 | mTotalAreaValid = false;
|
---|
[517] | 3951 | VssRayContainer postProcessRays;
|
---|
[605] | 3952 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3953 |
|
---|
[517] | 3954 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3955 |
|
---|
[517] | 3956 |
|
---|
[552] | 3957 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3958 | // and to correct the rendering statistics
|
---|
[719] | 3959 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3960 |
|
---|
[597] | 3961 | //-- merge the individual view cells
|
---|
| 3962 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3963 |
|
---|
[720] | 3964 |
|
---|
| 3965 | // only for debugging purpose: test if the subdivision is valid
|
---|
[1122] | 3966 | if (0) TestSubdivision();
|
---|
[693] | 3967 |
|
---|
[597] | 3968 | //-- refines the merged view cells
|
---|
[720] | 3969 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3970 |
|
---|
[719] | 3971 |
|
---|
[660] | 3972 | //-- render simulation after merge + refine
|
---|
[605] | 3973 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3974 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3975 | SimulationStatistics ss;
|
---|
| 3976 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3977 |
|
---|
[580] | 3978 |
|
---|
[605] | 3979 | cout << " finished" << endl;
|
---|
| 3980 | cout << ss << endl;
|
---|
| 3981 | Debug << ss << endl;
|
---|
[600] | 3982 |
|
---|
| 3983 |
|
---|
| 3984 | //-- compression
|
---|
| 3985 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3986 | {
|
---|
[1161] | 3987 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 3988 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3989 |
|
---|
[752] | 3990 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3991 |
|
---|
[1161] | 3992 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 3993 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3994 | }
|
---|
| 3995 |
|
---|
[660] | 3996 |
|
---|
[517] | 3997 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 3998 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 3999 |
|
---|
[574] | 4000 | // recompute view cell list and statistics
|
---|
[520] | 4001 | ResetViewCells();
|
---|
| 4002 |
|
---|
[719] | 4003 | // compute final meshes and volume / area
|
---|
| 4004 | if (1) FinalizeViewCells(true);
|
---|
[517] | 4005 |
|
---|
[508] | 4006 | // write view cells to disc
|
---|
| 4007 | if (mExportViewCells)
|
---|
| 4008 | {
|
---|
[840] | 4009 | char filename[100];
|
---|
[1004] | 4010 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 4011 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 4012 | }
|
---|
[517] | 4013 |
|
---|
[840] | 4014 |
|
---|
| 4015 | // export bounding boxes
|
---|
| 4016 | if (mExportBboxesForPvs)
|
---|
| 4017 | {
|
---|
| 4018 | char filename[100];
|
---|
[1004] | 4019 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[850] | 4020 |
|
---|
[840] | 4021 | ExportBoundingBoxes(filename, objects);
|
---|
[508] | 4022 | }
|
---|
[503] | 4023 |
|
---|
| 4024 | return 0;
|
---|
[442] | 4025 | }
|
---|
| 4026 |
|
---|
[490] | 4027 |
|
---|
[442] | 4028 | int VspBspViewCellsManager::GetType() const
|
---|
| 4029 | {
|
---|
| 4030 | return VSP_BSP;
|
---|
| 4031 | }
|
---|
| 4032 |
|
---|
| 4033 |
|
---|
[650] | 4034 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4035 | {
|
---|
[752] | 4036 | // terminate recursion
|
---|
[650] | 4037 | if (root->IsLeaf())
|
---|
| 4038 | {
|
---|
[752] | 4039 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4040 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4041 | return leaf->GetViewCell();
|
---|
[650] | 4042 | }
|
---|
| 4043 |
|
---|
[752] | 4044 |
|
---|
[650] | 4045 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4046 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4047 |
|
---|
[752] | 4048 | // evaluate merge cost for priority traversal
|
---|
[650] | 4049 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4050 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4051 |
|
---|
[650] | 4052 | float volume = 0;
|
---|
| 4053 |
|
---|
| 4054 | BspNode *front = interior->GetFront();
|
---|
| 4055 | BspNode *back = interior->GetBack();
|
---|
[649] | 4056 |
|
---|
[752] | 4057 |
|
---|
| 4058 | ObjectPvs frontPvs, backPvs;
|
---|
| 4059 |
|
---|
| 4060 | //-- recursivly compute child hierarchies
|
---|
[650] | 4061 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4062 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4063 |
|
---|
[752] | 4064 |
|
---|
| 4065 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4066 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4067 |
|
---|
| 4068 | volume += backVc->GetVolume();
|
---|
| 4069 | volume += frontVc->GetVolume();
|
---|
| 4070 |
|
---|
| 4071 | viewCellInterior->SetVolume(volume);
|
---|
| 4072 |
|
---|
| 4073 | return viewCellInterior;
|
---|
[609] | 4074 | }
|
---|
| 4075 |
|
---|
| 4076 |
|
---|
[752] | 4077 |
|
---|
| 4078 | void VspBspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 4079 | {
|
---|
| 4080 | // terminate traversal
|
---|
| 4081 | if (root->IsLeaf())
|
---|
| 4082 | {
|
---|
| 4083 | pvs = root->GetPvs();
|
---|
[1160] | 4084 | UpdateScalarPvsSize(root, pvs.CountPvs(), pvs.GetSize());
|
---|
[1002] | 4085 |
|
---|
[752] | 4086 | return;
|
---|
| 4087 | }
|
---|
| 4088 |
|
---|
[801] | 4089 | //-- interior node => propagate pvs up
|
---|
[752] | 4090 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[801] | 4091 | interior->GetPvs().Clear();
|
---|
| 4092 | pvs.Clear();
|
---|
| 4093 | vector<ObjectPvs> pvsList;
|
---|
| 4094 |
|
---|
[752] | 4095 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 4096 |
|
---|
| 4097 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 4098 | {
|
---|
| 4099 | ObjectPvs objPvs;
|
---|
| 4100 |
|
---|
| 4101 | //-- recursivly compute child pvss
|
---|
| 4102 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 4103 |
|
---|
| 4104 | // store pvs in vector
|
---|
| 4105 | pvsList.push_back(objPvs);
|
---|
| 4106 | }
|
---|
| 4107 |
|
---|
| 4108 | #if 1
|
---|
[801] | 4109 |
|
---|
[752] | 4110 | Intersectable::NewMail();
|
---|
| 4111 |
|
---|
| 4112 | //-- faster way of computing pvs:
|
---|
| 4113 | // construct merged pvs by adding
|
---|
| 4114 | // and only those of the next pvs which were not mailed.
|
---|
| 4115 | // note: sumpdf is not correct!!
|
---|
| 4116 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 4117 |
|
---|
| 4118 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 4119 | {
|
---|
| 4120 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 4121 |
|
---|
| 4122 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 4123 | {
|
---|
| 4124 | Intersectable *intersect = (*pit).first;
|
---|
| 4125 |
|
---|
| 4126 | if (!intersect->Mailed())
|
---|
| 4127 | {
|
---|
| 4128 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 4129 | intersect->Mail();
|
---|
| 4130 | }
|
---|
| 4131 | }
|
---|
| 4132 | }
|
---|
| 4133 |
|
---|
| 4134 | // store pvs in this node
|
---|
| 4135 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 4136 | {
|
---|
[1002] | 4137 | interior->SetPvs(pvs);
|
---|
[752] | 4138 | }
|
---|
| 4139 |
|
---|
| 4140 | // set new pvs size
|
---|
[1160] | 4141 | UpdateScalarPvsSize(interior, pvs.CountPvs(), pvs.GetSize());
|
---|
[1002] | 4142 |
|
---|
[752] | 4143 |
|
---|
| 4144 | #else
|
---|
[801] | 4145 |
|
---|
[1021] | 4146 | // really merge cells: slow but sumpdf is correct
|
---|
[752] | 4147 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 4148 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 4149 | #endif
|
---|
| 4150 |
|
---|
| 4151 | }
|
---|
| 4152 |
|
---|
| 4153 |
|
---|
[490] | 4154 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4155 | {
|
---|
| 4156 | if (!ViewCellsConstructed())
|
---|
| 4157 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4158 |
|
---|
| 4159 | // TODO: set reasonable limit
|
---|
| 4160 | const int limit = 20;
|
---|
| 4161 |
|
---|
| 4162 | for (int i = 0; i < limit; ++ i)
|
---|
| 4163 | {
|
---|
[542] | 4164 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4165 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4166 | {
|
---|
| 4167 | return true;
|
---|
| 4168 | }
|
---|
| 4169 | }
|
---|
[997] | 4170 |
|
---|
[490] | 4171 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4172 | return false;
|
---|
| 4173 | }
|
---|
| 4174 |
|
---|
| 4175 |
|
---|
| 4176 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4177 | {
|
---|
[569] | 4178 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4179 | // validy update in preprocessor for all managers)
|
---|
| 4180 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4181 |
|
---|
[569] | 4182 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4183 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4184 | }
|
---|
| 4185 |
|
---|
| 4186 |
|
---|
[442] | 4187 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4188 | const VssRayContainer &sampleRays)
|
---|
[442] | 4189 | {
|
---|
| 4190 | if (!ViewCellsConstructed())
|
---|
| 4191 | return;
|
---|
| 4192 |
|
---|
[485] | 4193 | VssRayContainer visRays;
|
---|
| 4194 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 4195 |
|
---|
[1077] | 4196 | //-- export final view cell partition
|
---|
| 4197 |
|
---|
| 4198 | if (0)
|
---|
[1047] | 4199 | {
|
---|
| 4200 | // hack pvs
|
---|
[1052] | 4201 | //const int savedColorCode = mColorCode;
|
---|
| 4202 | //mColorCode = 1;
|
---|
[801] | 4203 |
|
---|
[1020] | 4204 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4205 |
|
---|
[442] | 4206 | if (exporter)
|
---|
| 4207 | {
|
---|
[580] | 4208 | cout << "exporting view cells after post process ... ";
|
---|
| 4209 |
|
---|
[600] | 4210 | if (0)
|
---|
[542] | 4211 | {
|
---|
[1004] | 4212 | // export view space box
|
---|
[542] | 4213 | exporter->SetWireframe();
|
---|
| 4214 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4215 | exporter->SetFilled();
|
---|
| 4216 | }
|
---|
| 4217 |
|
---|
[1052] | 4218 | Material m;
|
---|
| 4219 |
|
---|
| 4220 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4221 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4222 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4223 |
|
---|
| 4224 | exporter->SetForcedMaterial(m);
|
---|
| 4225 |
|
---|
| 4226 | if (0 && mExportGeometry)
|
---|
[542] | 4227 | {
|
---|
[485] | 4228 | exporter->ExportGeometry(objects);
|
---|
[542] | 4229 | }
|
---|
[489] | 4230 |
|
---|
| 4231 | // export rays
|
---|
[1047] | 4232 | if (0 && mExportRays)
|
---|
[489] | 4233 | {
|
---|
[1052] | 4234 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4235 | }
|
---|
[564] | 4236 |
|
---|
[801] | 4237 | //exporter->SetFilled();
|
---|
[1020] | 4238 |
|
---|
[1006] | 4239 | // HACK: export without clip plane
|
---|
| 4240 | const bool b = mUseClipPlaneForViz;
|
---|
[1052] | 4241 | //mUseClipPlaneForViz = false;
|
---|
[1020] | 4242 |
|
---|
[508] | 4243 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 4244 |
|
---|
[801] | 4245 | mUseClipPlaneForViz = b;
|
---|
[442] | 4246 | delete exporter;
|
---|
[1020] | 4247 |
|
---|
[580] | 4248 | cout << "finished" << endl;
|
---|
[442] | 4249 | }
|
---|
[600] | 4250 |
|
---|
[1052] | 4251 | //mColorCode = savedColorCode;
|
---|
[557] | 4252 | }
|
---|
[503] | 4253 |
|
---|
[1002] | 4254 |
|
---|
[600] | 4255 | if (0)
|
---|
[577] | 4256 | {
|
---|
| 4257 | cout << "exporting depth map ... ";
|
---|
| 4258 |
|
---|
| 4259 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4260 | if (exporter)
|
---|
| 4261 | {
|
---|
| 4262 | if (1)
|
---|
| 4263 | {
|
---|
| 4264 | exporter->SetWireframe();
|
---|
| 4265 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4266 | exporter->SetFilled();
|
---|
| 4267 | }
|
---|
| 4268 |
|
---|
| 4269 | if (mExportGeometry)
|
---|
| 4270 | {
|
---|
| 4271 | exporter->ExportGeometry(objects);
|
---|
| 4272 | }
|
---|
| 4273 |
|
---|
[1143] | 4274 | const int maxDepth = mVspBspTree->GetStatistics().maxDepth;
|
---|
[577] | 4275 |
|
---|
| 4276 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4277 |
|
---|
| 4278 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4279 | {
|
---|
[582] | 4280 | ViewCell *vc = *vit;
|
---|
[577] | 4281 |
|
---|
[580] | 4282 | ViewCellContainer leaves;
|
---|
| 4283 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4284 |
|
---|
[580] | 4285 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4286 |
|
---|
| 4287 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4288 | {
|
---|
[580] | 4289 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4290 |
|
---|
| 4291 | Material m;
|
---|
| 4292 |
|
---|
| 4293 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4294 | m.mDiffuseColor.r = relDepth;
|
---|
| 4295 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4296 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4297 |
|
---|
| 4298 | exporter->SetForcedMaterial(m);
|
---|
| 4299 |
|
---|
| 4300 |
|
---|
| 4301 | BspNodeGeometry geom;
|
---|
| 4302 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4303 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4304 | }
|
---|
| 4305 | }
|
---|
| 4306 |
|
---|
| 4307 | delete exporter;
|
---|
| 4308 | }
|
---|
| 4309 |
|
---|
| 4310 |
|
---|
| 4311 | cout << "finished" << endl;
|
---|
| 4312 | }
|
---|
| 4313 |
|
---|
[442] | 4314 | //-- visualization of the BSP splits
|
---|
| 4315 | bool exportSplits = false;
|
---|
[1004] | 4316 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4317 |
|
---|
[442] | 4318 | if (exportSplits)
|
---|
| 4319 | {
|
---|
| 4320 | cout << "exporting splits ... ";
|
---|
[485] | 4321 | ExportSplits(objects, visRays);
|
---|
[442] | 4322 | cout << "finished" << endl;
|
---|
| 4323 | }
|
---|
| 4324 |
|
---|
[542] | 4325 | //-- export single view cells
|
---|
[485] | 4326 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4327 | }
|
---|
| 4328 |
|
---|
[503] | 4329 |
|
---|
[485] | 4330 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4331 | const VssRayContainer &rays)
|
---|
[442] | 4332 | {
|
---|
| 4333 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4334 |
|
---|
[503] | 4335 | if (exporter)
|
---|
| 4336 | {
|
---|
| 4337 | Material m;
|
---|
[442] | 4338 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4339 | exporter->SetForcedMaterial(m);
|
---|
| 4340 | exporter->SetWireframe();
|
---|
[503] | 4341 |
|
---|
[448] | 4342 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4343 |
|
---|
| 4344 | // take forced material, else big scenes cannot be viewed
|
---|
| 4345 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4346 | exporter->SetForcedMaterial(m);
|
---|
| 4347 | exporter->SetFilled();
|
---|
| 4348 |
|
---|
| 4349 | exporter->ResetForcedMaterial();
|
---|
[503] | 4350 |
|
---|
[442] | 4351 | // export rays
|
---|
[485] | 4352 | if (mExportRays)
|
---|
| 4353 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4354 |
|
---|
[485] | 4355 | if (mExportGeometry)
|
---|
[442] | 4356 | exporter->ExportGeometry(objects);
|
---|
| 4357 |
|
---|
| 4358 | delete exporter;
|
---|
| 4359 | }
|
---|
| 4360 | }
|
---|
| 4361 |
|
---|
[503] | 4362 |
|
---|
[485] | 4363 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4364 | const VssRayContainer &rays)
|
---|
[442] | 4365 | {
|
---|
[1020] | 4366 | int leafOut;
|
---|
| 4367 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[503] | 4368 |
|
---|
[442] | 4369 | ViewCell::NewMail();
|
---|
[503] | 4370 |
|
---|
[639] | 4371 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4372 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4373 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4374 |
|
---|
[694] | 4375 | const bool sortViewCells = true;
|
---|
[1021] | 4376 |
|
---|
[485] | 4377 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4378 | if (sortViewCells)
|
---|
[801] | 4379 | {
|
---|
| 4380 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 4381 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4382 | }
|
---|
| 4383 |
|
---|
[503] | 4384 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4385 |
|
---|
[639] | 4386 | int raysOut = 0;
|
---|
[587] | 4387 |
|
---|
[485] | 4388 | //-- some rays for output
|
---|
[478] | 4389 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4390 | {
|
---|
[478] | 4391 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4392 |
|
---|
[582] | 4393 | ViewCell *vc;
|
---|
[574] | 4394 |
|
---|
[694] | 4395 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4396 | vc = mViewCells[i];
|
---|
[574] | 4397 | else
|
---|
[639] | 4398 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4399 |
|
---|
[801] | 4400 | ObjectPvs pvs;
|
---|
| 4401 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4402 |
|
---|
[639] | 4403 | //bspLeaves[j]->Mail();
|
---|
[1020] | 4404 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
[639] | 4405 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4406 |
|
---|
[1142] | 4407 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 4408 |
|
---|
[801] | 4409 | //-- export the sample rays
|
---|
[1020] | 4410 | if (mExportRays)
|
---|
[442] | 4411 | {
|
---|
[694] | 4412 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 4413 | if (1)
|
---|
[442] | 4414 | {
|
---|
[639] | 4415 | VssRayContainer vcRays;
|
---|
| 4416 | VssRayContainer collectRays;
|
---|
| 4417 |
|
---|
| 4418 | raysOut = min((int)rays.size(), 100);
|
---|
| 4419 |
|
---|
| 4420 | // collect intial view cells
|
---|
| 4421 | ViewCellContainer leaves;
|
---|
| 4422 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4423 |
|
---|
| 4424 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4425 |
|
---|
| 4426 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4427 | {
|
---|
[639] | 4428 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4429 |
|
---|
| 4430 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4431 |
|
---|
[639] | 4432 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4433 | {
|
---|
| 4434 | collectRays.push_back(*rit);
|
---|
| 4435 | }
|
---|
[574] | 4436 | }
|
---|
[639] | 4437 |
|
---|
| 4438 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4439 |
|
---|
| 4440 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4441 | {
|
---|
| 4442 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4443 |
|
---|
| 4444 | if (p < raysOut)
|
---|
| 4445 | vcRays.push_back(*rit);
|
---|
| 4446 | }
|
---|
[801] | 4447 |
|
---|
[1052] | 4448 | //Debug << "#rays: " << (int)vcRays.size() << endl;
|
---|
[1047] | 4449 |
|
---|
[639] | 4450 | //-- export rays piercing this view cell
|
---|
| 4451 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4452 | }
|
---|
[651] | 4453 |
|
---|
[694] | 4454 | // associate new rays with output view cell
|
---|
[1047] | 4455 | if (0)
|
---|
[639] | 4456 | {
|
---|
| 4457 | VssRayContainer vcRays;
|
---|
| 4458 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
[801] | 4459 |
|
---|
[639] | 4460 | // check whether we can add the current ray to the output rays
|
---|
| 4461 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4462 | {
|
---|
| 4463 | VssRay *ray = rays[k];
|
---|
| 4464 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4465 | {
|
---|
| 4466 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4467 |
|
---|
| 4468 | if (rayvc == vc)
|
---|
| 4469 | vcRays.push_back(ray);
|
---|
| 4470 | }
|
---|
| 4471 | }
|
---|
| 4472 |
|
---|
| 4473 | //-- export rays piercing this view cell
|
---|
| 4474 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4475 | }
|
---|
| 4476 |
|
---|
[442] | 4477 | }
|
---|
[639] | 4478 |
|
---|
[574] | 4479 |
|
---|
[1020] | 4480 | //-- export view cell geometry
|
---|
[478] | 4481 | exporter->SetWireframe();
|
---|
[442] | 4482 |
|
---|
[478] | 4483 | Material m;//= RandomMaterial();
|
---|
| 4484 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4485 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4486 |
|
---|
[580] | 4487 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 4488 |
|
---|
| 4489 | exporter->SetFilled();
|
---|
[503] | 4490 |
|
---|
[1020] | 4491 |
|
---|
[801] | 4492 | //-- export pvs
|
---|
[574] | 4493 | if (1)
|
---|
| 4494 | {
|
---|
[639] | 4495 | ObjectPvsMap::const_iterator oit,
|
---|
[801] | 4496 | oit_end = pvs.mEntries.end();
|
---|
[483] | 4497 |
|
---|
[801] | 4498 | Intersectable::NewMail();
|
---|
[580] | 4499 |
|
---|
[639] | 4500 | // output PVS of view cell
|
---|
[801] | 4501 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4502 | {
|
---|
| 4503 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4504 |
|
---|
[639] | 4505 | if (!intersect->Mailed())
|
---|
| 4506 | {
|
---|
[643] | 4507 | m = RandomMaterial();
|
---|
| 4508 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4509 |
|
---|
[639] | 4510 | exporter->ExportIntersectable(intersect);
|
---|
| 4511 | intersect->Mail();
|
---|
| 4512 | }
|
---|
[503] | 4513 | }
|
---|
[442] | 4514 | }
|
---|
[801] | 4515 |
|
---|
| 4516 | if (0)
|
---|
| 4517 | { // export scene geometry
|
---|
[643] | 4518 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4519 | exporter->SetForcedMaterial(m);
|
---|
| 4520 |
|
---|
[639] | 4521 | exporter->ExportGeometry(objects);
|
---|
| 4522 | }
|
---|
[503] | 4523 |
|
---|
[478] | 4524 | DEL_PTR(exporter);
|
---|
| 4525 | cout << "finished" << endl;
|
---|
[442] | 4526 | }
|
---|
[475] | 4527 |
|
---|
| 4528 | Debug << endl;
|
---|
[442] | 4529 | }
|
---|
| 4530 |
|
---|
| 4531 |
|
---|
[1021] | 4532 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4533 | {
|
---|
[1021] | 4534 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4535 |
|
---|
[1021] | 4536 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4537 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4538 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4539 | const Vector3 width = Vector3(w);
|
---|
| 4540 |
|
---|
| 4541 | PrVs testPrVs;
|
---|
| 4542 |
|
---|
| 4543 | if (exporter)
|
---|
| 4544 | {
|
---|
| 4545 | ViewCellContainer viewCells;
|
---|
| 4546 |
|
---|
| 4547 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4548 |
|
---|
[1021] | 4549 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4550 |
|
---|
[1021] | 4551 | exporter->SetWireframe();
|
---|
[482] | 4552 |
|
---|
[1021] | 4553 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4554 | exporter->ExportBox(tbox);
|
---|
| 4555 |
|
---|
| 4556 | exporter->SetFilled();
|
---|
[503] | 4557 |
|
---|
[1021] | 4558 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
| 4559 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
[564] | 4560 |
|
---|
[1021] | 4561 | //exporter->ResetForcedMaterial();
|
---|
| 4562 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
| 4563 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
[591] | 4564 |
|
---|
[1021] | 4565 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4566 | exporter->ExportGeometry(objects);
|
---|
[547] | 4567 |
|
---|
[1021] | 4568 | delete exporter;
|
---|
[482] | 4569 | }
|
---|
[1021] | 4570 | }
|
---|
[482] | 4571 |
|
---|
[547] | 4572 |
|
---|
[1021] | 4573 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4574 | ViewCellContainer &viewCells) const
|
---|
| 4575 | {
|
---|
| 4576 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4577 | }
|
---|
| 4578 |
|
---|
| 4579 |
|
---|
[1021] | 4580 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4581 | const Vector3 &termination,
|
---|
| 4582 | ViewCellContainer &viewcells)
|
---|
| 4583 | {
|
---|
| 4584 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4585 | }
|
---|
| 4586 |
|
---|
| 4587 |
|
---|
[979] | 4588 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4589 | {
|
---|
| 4590 | int numSamples;
|
---|
[1161] | 4591 |
|
---|
[1004] | 4592 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4593 | cout << "samples" << numSamples << endl;
|
---|
| 4594 |
|
---|
| 4595 | vector<RenderCostSample> samples;
|
---|
| 4596 |
|
---|
[1145] | 4597 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4598 | return;
|
---|
| 4599 |
|
---|
[1145] | 4600 | //start the view point queries
|
---|
[979] | 4601 | long startTime = GetTime();
|
---|
| 4602 | cout << "starting sampling of render cost ... ";
|
---|
| 4603 |
|
---|
[1145] | 4604 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4605 |
|
---|
| 4606 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4607 |
|
---|
| 4608 |
|
---|
[1161] | 4609 | // for each sample:
|
---|
| 4610 | // find view cells associated with the samples
|
---|
| 4611 | // store the sample pvs with the pvs associated with the view cell
|
---|
| 4612 | // for each view cell:
|
---|
| 4613 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4614 | // export geometry with color coded pvs difference
|
---|
| 4615 |
|
---|
| 4616 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4617 |
|
---|
[979] | 4618 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4619 |
|
---|
[1161] | 4620 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4621 | {
|
---|
| 4622 | RenderCostSample sample = *rit;
|
---|
| 4623 |
|
---|
| 4624 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4625 |
|
---|
[1161] | 4626 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4627 |
|
---|
| 4628 | if (it == sampleMap.end())
|
---|
| 4629 | {
|
---|
| 4630 | sampleMap[vc] = sample.mPvs;
|
---|
| 4631 | }
|
---|
| 4632 | else
|
---|
| 4633 | {
|
---|
| 4634 | (*it).second.Merge(sample.mPvs);
|
---|
| 4635 | }
|
---|
| 4636 | }
|
---|
| 4637 |
|
---|
| 4638 | // visualize the view cells
|
---|
| 4639 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4640 |
|
---|
| 4641 | Material m;//= RandomMaterial();
|
---|
| 4642 |
|
---|
| 4643 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4644 | {
|
---|
| 4645 | ViewCell *vc = (*vit).first;
|
---|
| 4646 |
|
---|
| 4647 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
| 4648 | const int pvs2 = (*vit).second.GetSize();
|
---|
| 4649 |
|
---|
| 4650 | m.mDiffuseColor.r = (float) (pvsVc - pvs2);
|
---|
| 4651 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4652 | //exporter->SetForcedMaterial(m);
|
---|
| 4653 |
|
---|
| 4654 | // ExportViewCellGeometry(exporter, vc, mClipPlane);
|
---|
| 4655 |
|
---|
| 4656 | /* // counting the pvss
|
---|
[979] | 4657 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4658 | {
|
---|
| 4659 | RenderCostSample sample = *rit;
|
---|
[1001] | 4660 |
|
---|
[991] | 4661 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
| 4662 |
|
---|
| 4663 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4664 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
| 4665 |
|
---|
| 4666 | DEL_PTR(hMesh);
|
---|
[1161] | 4667 |
|
---|
| 4668 | */
|
---|
[979] | 4669 | }
|
---|
| 4670 | }
|
---|
| 4671 |
|
---|
| 4672 |
|
---|
[580] | 4673 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4674 | ViewCell *vc,
|
---|
[1047] | 4675 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 4676 | {
|
---|
[660] | 4677 | if (clipPlane)
|
---|
[591] | 4678 | {
|
---|
[1047] | 4679 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4680 |
|
---|
[591] | 4681 | ViewCellContainer leaves;
|
---|
| 4682 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4683 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4684 |
|
---|
| 4685 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4686 | {
|
---|
| 4687 | BspNodeGeometry geom;
|
---|
| 4688 |
|
---|
| 4689 | BspNodeGeometry front;
|
---|
| 4690 | BspNodeGeometry back;
|
---|
| 4691 |
|
---|
| 4692 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4693 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4694 |
|
---|
[1052] | 4695 | const float eps = 0.0001f;
|
---|
[1047] | 4696 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4697 |
|
---|
[710] | 4698 | if (cf == -1)
|
---|
[682] | 4699 | {
|
---|
| 4700 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4701 | }
|
---|
[710] | 4702 | else if (cf == 0)
|
---|
[684] | 4703 | {
|
---|
[682] | 4704 | geom.SplitGeometry(front,
|
---|
| 4705 | back,
|
---|
[1047] | 4706 | plane,
|
---|
[682] | 4707 | mViewSpaceBox,
|
---|
[710] | 4708 | eps);
|
---|
[682] | 4709 |
|
---|
[694] | 4710 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4711 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[801] | 4712 |
|
---|
[683] | 4713 | if (back.Valid())
|
---|
| 4714 | {
|
---|
[682] | 4715 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4716 | }
|
---|
[684] | 4717 | }
|
---|
[591] | 4718 | }
|
---|
| 4719 | }
|
---|
| 4720 | else
|
---|
| 4721 | {
|
---|
[801] | 4722 | // export mesh if available
|
---|
[1001] | 4723 | // TODO: some bug here?
|
---|
| 4724 | if (0 && vc->GetMesh())
|
---|
[801] | 4725 | {
|
---|
| 4726 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4727 | }
|
---|
| 4728 | else
|
---|
[1001] | 4729 | {
|
---|
[801] | 4730 | BspNodeGeometry geom;
|
---|
| 4731 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4732 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4733 | }
|
---|
[591] | 4734 | }
|
---|
[482] | 4735 | }
|
---|
| 4736 |
|
---|
| 4737 |
|
---|
| 4738 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4739 | {
|
---|
[580] | 4740 | ViewCellContainer leaves;
|
---|
| 4741 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4742 |
|
---|
| 4743 | int maxDist = 0;
|
---|
[580] | 4744 |
|
---|
[482] | 4745 | // compute max height difference
|
---|
[580] | 4746 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4747 | {
|
---|
[580] | 4748 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4749 | {
|
---|
| 4750 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4751 |
|
---|
[1001] | 4752 | if (i != j)
|
---|
| 4753 | {
|
---|
| 4754 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
| 4755 |
|
---|
| 4756 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4757 |
|
---|
| 4758 | if (dist > maxDist)
|
---|
| 4759 | maxDist = dist;
|
---|
| 4760 | }
|
---|
[482] | 4761 | }
|
---|
| 4762 | }
|
---|
[580] | 4763 |
|
---|
[492] | 4764 | return maxDist;
|
---|
| 4765 | }
|
---|
[482] | 4766 |
|
---|
[492] | 4767 |
|
---|
[879] | 4768 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4769 | {
|
---|
[1021] | 4770 | if (!ViewCellsConstructed())
|
---|
[508] | 4771 | return NULL;
|
---|
[572] | 4772 |
|
---|
| 4773 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4774 | return NULL;
|
---|
| 4775 |
|
---|
[879] | 4776 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4777 | }
|
---|
[503] | 4778 |
|
---|
| 4779 |
|
---|
| 4780 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4781 | {
|
---|
[726] | 4782 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4783 | BspNodeGeometry geom;
|
---|
[590] | 4784 |
|
---|
| 4785 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4786 |
|
---|
[1001] | 4787 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4788 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4789 |
|
---|
[503] | 4790 | vc->SetMesh(mesh);
|
---|
| 4791 | }
|
---|
[508] | 4792 |
|
---|
| 4793 |
|
---|
[532] | 4794 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4795 | {
|
---|
[535] | 4796 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4797 | }
|
---|
[551] | 4798 |
|
---|
| 4799 |
|
---|
[587] | 4800 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4801 | const bool createMesh)
|
---|
[551] | 4802 | {
|
---|
| 4803 | float area = 0;
|
---|
| 4804 | float volume = 0;
|
---|
| 4805 |
|
---|
[580] | 4806 | ViewCellContainer leaves;
|
---|
[582] | 4807 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4808 |
|
---|
| 4809 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4810 |
|
---|
[693] | 4811 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4812 | {
|
---|
| 4813 | BspNodeGeometry geom;
|
---|
[580] | 4814 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4815 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4816 |
|
---|
[719] | 4817 | const float lVol = geom.GetVolume();
|
---|
| 4818 | const float lArea = geom.GetArea();
|
---|
[693] | 4819 |
|
---|
| 4820 | //(*it)->SetVolume(vol);
|
---|
| 4821 | //(*it)->SetArea(area);
|
---|
| 4822 |
|
---|
| 4823 | area += lArea;
|
---|
| 4824 | volume += lVol;
|
---|
| 4825 |
|
---|
| 4826 | CreateMesh(*it);
|
---|
[551] | 4827 | }
|
---|
| 4828 |
|
---|
| 4829 | viewCell->SetVolume(volume);
|
---|
| 4830 | viewCell->SetArea(area);
|
---|
[563] | 4831 | }
|
---|
[575] | 4832 |
|
---|
| 4833 |
|
---|
[693] | 4834 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4835 | {
|
---|
| 4836 | ViewCellContainer leaves;
|
---|
| 4837 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4838 |
|
---|
| 4839 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4840 |
|
---|
| 4841 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4842 | float subdivVol = 0;
|
---|
| 4843 | float newVol = 0;
|
---|
| 4844 |
|
---|
| 4845 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4846 | {
|
---|
| 4847 | BspNodeGeometry geom;
|
---|
| 4848 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4849 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4850 |
|
---|
| 4851 | const float lVol = geom.GetVolume();
|
---|
| 4852 |
|
---|
| 4853 | newVol += lVol;
|
---|
| 4854 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4855 |
|
---|
[704] | 4856 | float thres = 0.9f;
|
---|
[697] | 4857 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4858 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4859 | }
|
---|
| 4860 |
|
---|
| 4861 | Debug << "exact volume: " << vol << endl;
|
---|
| 4862 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4863 | Debug << "new volume: " << newVol << endl;
|
---|
| 4864 | }
|
---|
| 4865 |
|
---|
| 4866 |
|
---|
[577] | 4867 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4868 | {
|
---|
| 4869 | // TODO: do I still need this here?
|
---|
[590] | 4870 | if (0)
|
---|
[693] | 4871 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4872 | }
|
---|
[575] | 4873 |
|
---|
[1021] | 4874 |
|
---|
| 4875 |
|
---|
| 4876 | /**************************************************************************/
|
---|
[1047] | 4877 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4878 | /**************************************************************************/
|
---|
| 4879 |
|
---|
| 4880 |
|
---|
| 4881 | VspOspViewCellsManager::VspOspViewCellsManager(VspTree *vspTree, OspTree *ospTree):
|
---|
| 4882 | ViewCellsManager(), mVspTree(vspTree), mOspTree(ospTree)
|
---|
[859] | 4883 | {
|
---|
[1027] | 4884 | mHierarchyManager = new HierarchyManager(*vspTree, *ospTree);
|
---|
| 4885 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
[1106] | 4886 |
|
---|
[1021] | 4887 | mVspTree->SetViewCellsManager(this);
|
---|
[1106] | 4888 | mOspTree->SetViewCellsManager(this);
|
---|
| 4889 |
|
---|
[1021] | 4890 | mVspTree->mViewCellsTree = mViewCellsTree;
|
---|
| 4891 | }
|
---|
[859] | 4892 |
|
---|
| 4893 |
|
---|
[1021] | 4894 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4895 | {
|
---|
[1027] | 4896 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 4897 | }
|
---|
| 4898 |
|
---|
| 4899 |
|
---|
| 4900 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4901 | {
|
---|
| 4902 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4903 | }
|
---|
| 4904 |
|
---|
| 4905 |
|
---|
| 4906 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4907 | {
|
---|
| 4908 | // view cells tree constructed
|
---|
| 4909 | if (!ViewCellsTreeConstructed())
|
---|
| 4910 | {
|
---|
| 4911 | mVspTree->CollectViewCells(mViewCells, false);
|
---|
| 4912 | }
|
---|
| 4913 | else
|
---|
| 4914 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4915 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4916 | }
|
---|
| 4917 | }
|
---|
| 4918 |
|
---|
| 4919 |
|
---|
| 4920 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4921 | {
|
---|
| 4922 | return mVspTree->GetRoot() != NULL;
|
---|
| 4923 | }
|
---|
| 4924 |
|
---|
| 4925 |
|
---|
| 4926 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4927 | {
|
---|
| 4928 | return new VspViewCell(mesh);
|
---|
| 4929 | }
|
---|
| 4930 |
|
---|
| 4931 |
|
---|
| 4932 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4933 | const VssRayContainer &rays)
|
---|
| 4934 | {
|
---|
| 4935 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4936 |
|
---|
[1074] | 4937 | // skip rest if view cells were already constructed
|
---|
[1021] | 4938 | if (ViewCellsConstructed())
|
---|
| 4939 | return 0;
|
---|
| 4940 |
|
---|
| 4941 | int sampleContributions = 0;
|
---|
| 4942 |
|
---|
| 4943 | VssRayContainer sampleRays;
|
---|
| 4944 |
|
---|
| 4945 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4946 |
|
---|
| 4947 | VssRayContainer constructionRays;
|
---|
| 4948 | VssRayContainer savedRays;
|
---|
| 4949 |
|
---|
| 4950 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4951 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4952 |
|
---|
| 4953 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4954 |
|
---|
| 4955 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
| 4956 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4957 |
|
---|
| 4958 | long startTime;
|
---|
| 4959 |
|
---|
[1143] | 4960 | if (!mOspTree->GetRoot())
|
---|
| 4961 | {
|
---|
| 4962 | cout << "constructing vsp and osp tree" << endl;
|
---|
| 4963 | //mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
| 4964 | mHierarchyManager->Construct2(constructionRays, objects, &mViewSpaceBox);
|
---|
| 4965 | }
|
---|
| 4966 | else // just build view space partition tree
|
---|
| 4967 | {
|
---|
| 4968 | cout << "constructing only vsp tree" << endl;
|
---|
| 4969 | mHierarchyManager->Construct3(constructionRays, objects, &mViewSpaceBox);
|
---|
| 4970 | }
|
---|
[1142] | 4971 |
|
---|
[1143] | 4972 | // print subdivision statistics
|
---|
[1021] | 4973 | Debug << mVspTree->GetStatistics() << endl;
|
---|
[1145] | 4974 | Debug << mOspTree->GetStatistics() << endl;
|
---|
[1021] | 4975 |
|
---|
[1143] | 4976 | // print view cell statistics
|
---|
[1021] | 4977 | ResetViewCells();
|
---|
| 4978 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4979 |
|
---|
| 4980 |
|
---|
| 4981 | startTime = GetTime();
|
---|
| 4982 |
|
---|
| 4983 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4984 |
|
---|
| 4985 | // recast rest of rays
|
---|
| 4986 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4987 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4988 |
|
---|
| 4989 | cout << "finished" << endl;
|
---|
| 4990 |
|
---|
| 4991 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4992 | << " secs" << endl;
|
---|
| 4993 |
|
---|
| 4994 | cout << "construction finished" << endl;
|
---|
| 4995 |
|
---|
| 4996 | // real meshes are contructed at this stage
|
---|
| 4997 | if (0)
|
---|
| 4998 | {
|
---|
| 4999 | cout << "finalizing view cells ... ";
|
---|
| 5000 | FinalizeViewCells(true);
|
---|
| 5001 | cout << "finished" << endl;
|
---|
| 5002 | }
|
---|
| 5003 |
|
---|
| 5004 | return sampleContributions;
|
---|
| 5005 | }
|
---|
| 5006 |
|
---|
| 5007 |
|
---|
| 5008 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 5009 | const VssRayContainer &rays)
|
---|
| 5010 | {
|
---|
| 5011 | if (!ViewCellsConstructed())
|
---|
| 5012 | {
|
---|
| 5013 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 5014 | return 0;
|
---|
| 5015 | }
|
---|
| 5016 |
|
---|
| 5017 |
|
---|
[1027] | 5018 | // take this step only if
|
---|
| 5019 | // view cells already constructed before post processing step
|
---|
| 5020 | // (e.g., because they were loaded)
|
---|
[1021] | 5021 | if (mViewCellsFinished)
|
---|
| 5022 | {
|
---|
| 5023 | FinalizeViewCells(true);
|
---|
| 5024 | EvaluateViewCellsStats();
|
---|
| 5025 |
|
---|
| 5026 | return 0;
|
---|
| 5027 | }
|
---|
| 5028 |
|
---|
| 5029 | // check if new view cells turned invalid
|
---|
| 5030 | int minPvs, maxPvs;
|
---|
| 5031 |
|
---|
| 5032 | if (0)
|
---|
| 5033 | {
|
---|
| 5034 | minPvs = mMinPvsSize;
|
---|
| 5035 | maxPvs = mMaxPvsSize;
|
---|
| 5036 | }
|
---|
| 5037 | else
|
---|
| 5038 | {
|
---|
| 5039 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 5040 | maxPvs = mMaxPvsSize;
|
---|
| 5041 | }
|
---|
| 5042 |
|
---|
| 5043 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5044 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5045 |
|
---|
| 5046 | SetValidity(minPvs, maxPvs);
|
---|
| 5047 |
|
---|
| 5048 |
|
---|
| 5049 | // area has to be recomputed
|
---|
| 5050 | mTotalAreaValid = false;
|
---|
| 5051 | VssRayContainer postProcessRays;
|
---|
| 5052 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 5053 |
|
---|
| 5054 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 5055 |
|
---|
| 5056 |
|
---|
| 5057 | // should maybe be done here to allow merge working with area or volume
|
---|
| 5058 | // and to correct the rendering statistics
|
---|
| 5059 | if (0) FinalizeViewCells(false);
|
---|
| 5060 |
|
---|
| 5061 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 5062 | ViewCell *root = ConstructSpatialMergeTree(mVspTree->GetRoot());
|
---|
| 5063 | mViewCellsTree->SetRoot(root);
|
---|
| 5064 |
|
---|
| 5065 | // compute pvs
|
---|
| 5066 | ObjectPvs pvs;
|
---|
| 5067 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5068 |
|
---|
| 5069 |
|
---|
| 5070 | //-- render simulation after merge + refine
|
---|
| 5071 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 5072 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5073 | SimulationStatistics ss;
|
---|
| 5074 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[859] | 5075 |
|
---|
| 5076 |
|
---|
[1021] | 5077 | cout << " finished" << endl;
|
---|
| 5078 | cout << ss << endl;
|
---|
| 5079 | Debug << ss << endl;
|
---|
[859] | 5080 |
|
---|
| 5081 |
|
---|
[1021] | 5082 | //-- compression
|
---|
| 5083 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 5084 | {
|
---|
[1161] | 5085 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 5086 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 5087 |
|
---|
[1021] | 5088 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 5089 |
|
---|
[1161] | 5090 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 5091 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5092 | }
|
---|
[1021] | 5093 |
|
---|
| 5094 | // compute final meshes and volume / area
|
---|
| 5095 | if (1) FinalizeViewCells(true);
|
---|
| 5096 |
|
---|
| 5097 | // write view cells to disc
|
---|
| 5098 | if (mExportViewCells)
|
---|
| 5099 | {
|
---|
| 5100 | char filename[100];
|
---|
| 5101 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 5102 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 5103 | }
|
---|
| 5104 |
|
---|
| 5105 |
|
---|
| 5106 | return 0;
|
---|
[859] | 5107 | }
|
---|
| 5108 |
|
---|
[1021] | 5109 |
|
---|
| 5110 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5111 | {
|
---|
[1021] | 5112 | return VSP_OSP;
|
---|
| 5113 | }
|
---|
[859] | 5114 |
|
---|
[1021] | 5115 |
|
---|
| 5116 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5117 | {
|
---|
| 5118 | // terminate recursion
|
---|
| 5119 | if (root->IsLeaf())
|
---|
| 5120 | {
|
---|
| 5121 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5122 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5123 | return leaf->GetViewCell();
|
---|
| 5124 | }
|
---|
| 5125 |
|
---|
| 5126 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5127 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5128 |
|
---|
| 5129 | // evaluate merge cost for priority traversal
|
---|
| 5130 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 5131 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5132 |
|
---|
| 5133 | float volume = 0;
|
---|
| 5134 |
|
---|
| 5135 | VspNode *front = interior->GetFront();
|
---|
| 5136 | VspNode *back = interior->GetBack();
|
---|
| 5137 |
|
---|
| 5138 |
|
---|
| 5139 | ObjectPvs frontPvs, backPvs;
|
---|
| 5140 |
|
---|
| 5141 | //-- recursivly compute child hierarchies
|
---|
| 5142 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5143 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5144 |
|
---|
| 5145 |
|
---|
| 5146 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5147 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5148 |
|
---|
| 5149 | volume += backVc->GetVolume();
|
---|
| 5150 | volume += frontVc->GetVolume();
|
---|
| 5151 |
|
---|
| 5152 | viewCellInterior->SetVolume(volume);
|
---|
| 5153 |
|
---|
| 5154 | return viewCellInterior;
|
---|
| 5155 | }
|
---|
| 5156 |
|
---|
| 5157 |
|
---|
| 5158 |
|
---|
| 5159 | void VspOspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 5160 | {
|
---|
| 5161 | // terminate traversal
|
---|
| 5162 | if (root->IsLeaf())
|
---|
[1160] | 5163 | {
|
---|
| 5164 | // we assume that pvs is explicitly stored in leaves
|
---|
[1021] | 5165 | pvs = root->GetPvs();
|
---|
[1160] | 5166 | UpdateScalarPvsSize(root, pvs.CountPvs(), pvs.GetSize());
|
---|
[1021] | 5167 |
|
---|
[997] | 5168 | return;
|
---|
[1021] | 5169 | }
|
---|
| 5170 |
|
---|
| 5171 | //-- interior node => propagate pvs up
|
---|
| 5172 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 5173 | interior->GetPvs().Clear();
|
---|
| 5174 | pvs.Clear();
|
---|
| 5175 | vector<ObjectPvs> pvsList;
|
---|
[997] | 5176 |
|
---|
[1021] | 5177 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[904] | 5178 |
|
---|
[1021] | 5179 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 5180 | {
|
---|
| 5181 | ObjectPvs objPvs;
|
---|
| 5182 |
|
---|
| 5183 | //-- recursivly compute child pvss
|
---|
| 5184 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
[904] | 5185 |
|
---|
[1021] | 5186 | // store pvs in vector
|
---|
| 5187 | pvsList.push_back(objPvs);
|
---|
| 5188 | }
|
---|
| 5189 |
|
---|
| 5190 | #if 1
|
---|
| 5191 | Intersectable::NewMail();
|
---|
| 5192 |
|
---|
| 5193 | //-- faster way of computing pvs:
|
---|
| 5194 | // construct merged pvs by adding
|
---|
| 5195 | // and only those of the next pvs which were not mailed.
|
---|
| 5196 | // note: sumpdf is not correct!!
|
---|
| 5197 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 5198 |
|
---|
| 5199 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 5200 | {
|
---|
| 5201 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
[904] | 5202 |
|
---|
[1021] | 5203 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 5204 | {
|
---|
| 5205 | Intersectable *intersect = (*pit).first;
|
---|
| 5206 |
|
---|
| 5207 | if (!intersect->Mailed())
|
---|
| 5208 | {
|
---|
| 5209 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 5210 | intersect->Mail();
|
---|
| 5211 | }
|
---|
| 5212 | }
|
---|
| 5213 | }
|
---|
| 5214 |
|
---|
| 5215 | // store pvs in this node
|
---|
| 5216 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 5217 | {
|
---|
| 5218 | interior->SetPvs(pvs);
|
---|
| 5219 | }
|
---|
[904] | 5220 |
|
---|
[1021] | 5221 | // set new pvs size
|
---|
[1160] | 5222 | UpdateScalarPvsSize(interior, pvs.CountPvs(), pvs.GetSize());
|
---|
[904] | 5223 |
|
---|
[1021] | 5224 |
|
---|
| 5225 | #else
|
---|
| 5226 |
|
---|
| 5227 | // really merge cells: slow put sumpdf is correct
|
---|
| 5228 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 5229 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 5230 | #endif
|
---|
| 5231 | }
|
---|
| 5232 |
|
---|
| 5233 |
|
---|
| 5234 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5235 | {
|
---|
| 5236 | if (!ViewCellsConstructed())
|
---|
| 5237 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5238 |
|
---|
| 5239 | // TODO: set reasonable limit
|
---|
| 5240 | const int limit = 20;
|
---|
| 5241 |
|
---|
| 5242 | for (int i = 0; i < limit; ++ i)
|
---|
| 5243 | {
|
---|
| 5244 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5245 |
|
---|
[1021] | 5246 | if (mVspTree->ViewPointValid(viewPoint))
|
---|
| 5247 | {
|
---|
| 5248 | return true;
|
---|
| 5249 | }
|
---|
[904] | 5250 | }
|
---|
[859] | 5251 |
|
---|
[1021] | 5252 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5253 | return false;
|
---|
[884] | 5254 | }
|
---|
| 5255 |
|
---|
| 5256 |
|
---|
[1027] | 5257 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5258 | ViewCell *vc,
|
---|
[1047] | 5259 | const AxisAlignedPlane *clipPlane) const
|
---|
[1027] | 5260 | {
|
---|
| 5261 | ViewCellContainer leaves;
|
---|
| 5262 |
|
---|
| 5263 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5264 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5265 |
|
---|
[1047] | 5266 | Plane3 plane;
|
---|
| 5267 |
|
---|
| 5268 | if (clipPlane)
|
---|
| 5269 | plane = clipPlane->GetPlane();
|
---|
| 5270 |
|
---|
[1027] | 5271 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5272 | {
|
---|
| 5273 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
| 5274 | VspLeaf *l = vspVc->mLeaf;
|
---|
| 5275 |
|
---|
[1144] | 5276 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(vspVc->mLeaf);
|
---|
[1047] | 5277 |
|
---|
| 5278 | if (clipPlane)
|
---|
| 5279 | {
|
---|
| 5280 | if (box.Side(plane) == -1)
|
---|
[1144] | 5281 | {
|
---|
[1047] | 5282 | exporter->ExportBox(box);
|
---|
[1144] | 5283 | }
|
---|
[1047] | 5284 | else if (box.Side(plane) == 0)
|
---|
| 5285 | {
|
---|
| 5286 | AxisAlignedBox3 fbox, bbox;
|
---|
| 5287 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
| 5288 |
|
---|
| 5289 | exporter->ExportBox(bbox);
|
---|
| 5290 | }
|
---|
| 5291 | }
|
---|
| 5292 | else
|
---|
| 5293 | {
|
---|
[1027] | 5294 | exporter->ExportBox(box);
|
---|
[1047] | 5295 | }
|
---|
[1027] | 5296 | }
|
---|
| 5297 | }
|
---|
| 5298 |
|
---|
| 5299 |
|
---|
[1021] | 5300 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5301 | {
|
---|
| 5302 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5303 | // validy update in preprocessor for all managers)
|
---|
| 5304 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5305 |
|
---|
[1021] | 5306 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5307 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5308 | }
|
---|
| 5309 |
|
---|
| 5310 |
|
---|
| 5311 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5312 | const VssRayContainer &sampleRays)
|
---|
[859] | 5313 | {
|
---|
[997] | 5314 | if (!ViewCellsConstructed())
|
---|
| 5315 | return;
|
---|
[1027] | 5316 |
|
---|
[1021] | 5317 | VssRayContainer visRays;
|
---|
| 5318 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5319 |
|
---|
[1021] | 5320 | if (1)
|
---|
[1047] | 5321 | {
|
---|
[1106] | 5322 | //-- export final view cells
|
---|
| 5323 |
|
---|
[1047] | 5324 | // hack pvs
|
---|
[1021] | 5325 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5326 | mColorCode = 0;
|
---|
[1021] | 5327 |
|
---|
| 5328 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5329 |
|
---|
| 5330 | if (exporter)
|
---|
| 5331 | {
|
---|
| 5332 | cout << "exporting view cells after post process ... ";
|
---|
[859] | 5333 |
|
---|
[1021] | 5334 | if (0)
|
---|
| 5335 | {
|
---|
| 5336 | // export view space box
|
---|
| 5337 | exporter->SetWireframe();
|
---|
| 5338 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 5339 | exporter->SetFilled();
|
---|
| 5340 | }
|
---|
[859] | 5341 |
|
---|
[1021] | 5342 | if (mExportGeometry)
|
---|
| 5343 | {
|
---|
| 5344 | exporter->ExportGeometry(objects);
|
---|
| 5345 | }
|
---|
[859] | 5346 |
|
---|
[1021] | 5347 | // export rays
|
---|
[1072] | 5348 | if (0 && mExportRays)
|
---|
[1021] | 5349 | {
|
---|
| 5350 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5351 | }
|
---|
| 5352 |
|
---|
| 5353 | //exporter->SetFilled();
|
---|
| 5354 |
|
---|
| 5355 | // HACK: export without clip plane
|
---|
[1052] | 5356 | const bool b = mUseClipPlaneForViz;
|
---|
[1106] | 5357 | if (0) mUseClipPlaneForViz = false;
|
---|
[1021] | 5358 |
|
---|
| 5359 | ExportViewCellsForViz(exporter);
|
---|
| 5360 |
|
---|
[1052] | 5361 | mUseClipPlaneForViz = b;
|
---|
[1021] | 5362 | delete exporter;
|
---|
| 5363 |
|
---|
| 5364 | cout << "finished" << endl;
|
---|
| 5365 | }
|
---|
| 5366 |
|
---|
| 5367 | mColorCode = savedColorCode;
|
---|
| 5368 | }
|
---|
| 5369 |
|
---|
[1142] | 5370 | if (1 && mOspTree->GetRoot())
|
---|
[1106] | 5371 | {
|
---|
| 5372 | //-- export final object partition
|
---|
| 5373 | Exporter *exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5374 |
|
---|
| 5375 | if (exporter)
|
---|
| 5376 | {
|
---|
| 5377 | cout << "exporting object space partition ... ";
|
---|
| 5378 |
|
---|
[1107] | 5379 | if (0 && mExportGeometry)
|
---|
[1106] | 5380 | {
|
---|
| 5381 | exporter->ExportGeometry(objects);
|
---|
| 5382 | }
|
---|
| 5383 |
|
---|
| 5384 | // export rays
|
---|
| 5385 | if (0 && mExportRays)
|
---|
| 5386 | {
|
---|
| 5387 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5388 | }
|
---|
| 5389 |
|
---|
| 5390 | exporter->SetWireframe();
|
---|
[1121] | 5391 |
|
---|
| 5392 | const int savedColorCode = mColorCode;
|
---|
[1145] | 5393 | mColorCode = 0;
|
---|
[1121] | 5394 | const int maxPvs = 200;//mOspTree.GetStatistics().maxPvs;
|
---|
[1106] | 5395 |
|
---|
[1121] | 5396 | exporter->ExportOspTree(*mOspTree, mColorCode == 0 ? 0 : maxPvs);
|
---|
| 5397 |
|
---|
[1145] | 5398 | mColorCode = savedColorCode;
|
---|
| 5399 |
|
---|
[1106] | 5400 | delete exporter;
|
---|
| 5401 |
|
---|
| 5402 | cout << "finished" << endl;
|
---|
| 5403 | }
|
---|
| 5404 | }
|
---|
| 5405 |
|
---|
[1021] | 5406 | //-- export single view cells
|
---|
[1074] | 5407 | ExportPvs(objects, visRays);
|
---|
[859] | 5408 | }
|
---|
| 5409 |
|
---|
[1021] | 5410 |
|
---|
[1074] | 5411 | void VspOspViewCellsManager::ExportPvs(const ObjectContainer &objects,
|
---|
| 5412 | const VssRayContainer &rays)
|
---|
[697] | 5413 | {
|
---|
[1021] | 5414 | int leafOut;
|
---|
| 5415 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[580] | 5416 |
|
---|
[1021] | 5417 | ViewCell::NewMail();
|
---|
| 5418 |
|
---|
| 5419 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5420 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5421 | Debug << "\nOutput view cells: " << endl;
|
---|
| 5422 |
|
---|
| 5423 | const bool sortViewCells = true;
|
---|
| 5424 |
|
---|
| 5425 | // sort view cells to visualize the largest view cells
|
---|
| 5426 | if (sortViewCells)
|
---|
[697] | 5427 | {
|
---|
[1021] | 5428 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 5429 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5430 | }
|
---|
| 5431 |
|
---|
| 5432 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 5433 |
|
---|
| 5434 | int raysOut = 0;
|
---|
| 5435 |
|
---|
| 5436 | //-- some rays for output
|
---|
| 5437 | for (int i = 0; i < limit; ++ i)
|
---|
| 5438 | {
|
---|
| 5439 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 5440 |
|
---|
| 5441 | ViewCell *vc;
|
---|
[704] | 5442 |
|
---|
[1021] | 5443 | if (sortViewCells) // largest view cell pvs first
|
---|
| 5444 | vc = mViewCells[i];
|
---|
[1074] | 5445 | else // random view cell
|
---|
[1021] | 5446 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[704] | 5447 |
|
---|
[1021] | 5448 | ObjectPvs pvs;
|
---|
| 5449 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5450 |
|
---|
[1021] | 5451 | //bspLeaves[j]->Mail();
|
---|
| 5452 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
| 5453 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5454 |
|
---|
[1142] | 5455 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[1021] | 5456 |
|
---|
| 5457 | //-- export the sample rays
|
---|
[1074] | 5458 | if (1 || mExportRays)
|
---|
[1021] | 5459 | {
|
---|
| 5460 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 5461 | if (1)
|
---|
[1021] | 5462 | {
|
---|
| 5463 | VssRayContainer vcRays;
|
---|
| 5464 | VssRayContainer collectRays;
|
---|
| 5465 |
|
---|
| 5466 | raysOut = min((int)rays.size(), 100);
|
---|
| 5467 |
|
---|
| 5468 | // collect intial view cells
|
---|
| 5469 | ViewCellContainer leaves;
|
---|
| 5470 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5471 |
|
---|
| 5472 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5473 |
|
---|
| 5474 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5475 | {
|
---|
[1047] | 5476 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
|
---|
[1021] | 5477 |
|
---|
| 5478 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5479 |
|
---|
| 5480 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5481 | {
|
---|
| 5482 | collectRays.push_back(*rit);
|
---|
| 5483 | }
|
---|
| 5484 | }
|
---|
| 5485 |
|
---|
| 5486 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 5487 |
|
---|
| 5488 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5489 | {
|
---|
| 5490 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5491 |
|
---|
| 5492 | if (p < raysOut)
|
---|
| 5493 | vcRays.push_back(*rit);
|
---|
| 5494 | }
|
---|
| 5495 |
|
---|
| 5496 | //-- export rays piercing this view cell
|
---|
| 5497 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
| 5498 | }
|
---|
| 5499 |
|
---|
| 5500 | // associate new rays with output view cell
|
---|
[1047] | 5501 | if (0)
|
---|
[1021] | 5502 | {
|
---|
| 5503 | VssRayContainer vcRays;
|
---|
| 5504 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 5505 |
|
---|
| 5506 | // check whether we can add the current ray to the output rays
|
---|
| 5507 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 5508 | {
|
---|
| 5509 | VssRay *ray = rays[k];
|
---|
| 5510 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 5511 | {
|
---|
| 5512 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 5513 |
|
---|
| 5514 | if (rayvc == vc)
|
---|
| 5515 | vcRays.push_back(ray);
|
---|
| 5516 | }
|
---|
| 5517 | }
|
---|
| 5518 |
|
---|
| 5519 | //-- export rays piercing this view cell
|
---|
| 5520 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 5521 | }
|
---|
| 5522 |
|
---|
| 5523 | }
|
---|
| 5524 |
|
---|
| 5525 |
|
---|
| 5526 | //-- export view cell geometry
|
---|
[1121] | 5527 |
|
---|
[697] | 5528 | exporter->SetWireframe();
|
---|
| 5529 |
|
---|
[1021] | 5530 | Material m;//= RandomMaterial();
|
---|
| 5531 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5532 | exporter->SetForcedMaterial(m);
|
---|
| 5533 |
|
---|
| 5534 | ExportViewCellGeometry(exporter, vc);
|
---|
| 5535 |
|
---|
[697] | 5536 | exporter->SetFilled();
|
---|
| 5537 |
|
---|
[1021] | 5538 | if (1)
|
---|
[1138] | 5539 | {
|
---|
| 5540 | //-- export pvs
|
---|
[1139] | 5541 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[704] | 5542 |
|
---|
[1021] | 5543 | Intersectable::NewMail();
|
---|
[697] | 5544 |
|
---|
[1074] | 5545 | vector<KdLeaf *> kdLeaves;
|
---|
| 5546 |
|
---|
| 5547 | KdLeaf::NewMail();
|
---|
| 5548 |
|
---|
[1141] | 5549 | // export pvs entries
|
---|
[1021] | 5550 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[1074] | 5551 | {
|
---|
| 5552 | Intersectable *obj = (*oit).first;
|
---|
[1021] | 5553 |
|
---|
[1144] | 5554 | if (obj->Type() == Intersectable::KD_INTERSECTABLE)
|
---|
| 5555 | {
|
---|
| 5556 | m.mDiffuseColor = RgbColor(1, 1, 1);
|
---|
| 5557 | exporter->SetForcedMaterial(m);
|
---|
| 5558 |
|
---|
| 5559 | // export bounding box of node
|
---|
| 5560 | KdIntersectable *kdObj = dynamic_cast<KdIntersectable *>(obj);
|
---|
| 5561 | AxisAlignedBox3 box = mOspTree->GetBoundingBox(kdObj->GetNode());
|
---|
| 5562 |
|
---|
| 5563 | exporter->SetWireframe();
|
---|
| 5564 | exporter->ExportBox(box);
|
---|
| 5565 | exporter->SetFilled();
|
---|
| 5566 | }
|
---|
| 5567 |
|
---|
| 5568 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 5569 | exporter->SetForcedMaterial(m);
|
---|
| 5570 |
|
---|
| 5571 | // export pvs entry
|
---|
[1139] | 5572 | if (!obj->Mailed())
|
---|
[1021] | 5573 | {
|
---|
[1074] | 5574 | exporter->ExportIntersectable(obj);
|
---|
| 5575 | obj->Mail();
|
---|
| 5576 | }
|
---|
[1139] | 5577 | }
|
---|
[1021] | 5578 | }
|
---|
[1074] | 5579 |
|
---|
[1021] | 5580 | DEL_PTR(exporter);
|
---|
| 5581 | cout << "finished" << endl;
|
---|
[697] | 5582 | }
|
---|
[1021] | 5583 |
|
---|
| 5584 | Debug << endl;
|
---|
[697] | 5585 | }
|
---|
| 5586 |
|
---|
| 5587 |
|
---|
[1021] | 5588 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5589 | ViewCellContainer &viewCells) const
|
---|
| 5590 | {
|
---|
| 5591 | return mVspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 5592 | }
|
---|
[580] | 5593 |
|
---|
[1021] | 5594 |
|
---|
| 5595 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5596 | const Vector3 &termination,
|
---|
| 5597 | ViewCellContainer &viewcells)
|
---|
| 5598 | {
|
---|
| 5599 | return mVspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 5600 | }
|
---|
| 5601 |
|
---|
| 5602 |
|
---|
| 5603 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5604 | const bool exportPvs,
|
---|
| 5605 | const ObjectContainer &objects)
|
---|
| 5606 | {
|
---|
| 5607 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5608 | return false;
|
---|
| 5609 |
|
---|
| 5610 | cout << "exporting view cells to xml ... ";
|
---|
| 5611 |
|
---|
| 5612 | #if ZIPPED_VIEWCELLS
|
---|
| 5613 | ogzstream stream(filename.c_str());
|
---|
| 5614 | #else
|
---|
| 5615 | std::ofstream stream(filename.c_str());
|
---|
| 5616 | #endif
|
---|
| 5617 |
|
---|
| 5618 | // for output we need unique ids for each view cell
|
---|
| 5619 | CreateUniqueViewCellIds();
|
---|
| 5620 |
|
---|
| 5621 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5622 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5623 |
|
---|
| 5624 | //-- the view space bounding box
|
---|
| 5625 | stream << "<ViewSpaceBox"
|
---|
| 5626 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 5627 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 5628 |
|
---|
| 5629 |
|
---|
| 5630 | //-- export bounding boxes
|
---|
| 5631 | stream << "<BoundingBoxes>" << endl;
|
---|
| 5632 |
|
---|
| 5633 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 5634 |
|
---|
| 5635 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
[580] | 5636 | {
|
---|
[1021] | 5637 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 5638 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 5639 |
|
---|
| 5640 | //-- the bounding boxes
|
---|
| 5641 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 5642 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 5643 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[580] | 5644 | }
|
---|
[1021] | 5645 |
|
---|
| 5646 | stream << "</BoundingBoxes>" << endl;
|
---|
| 5647 |
|
---|
| 5648 |
|
---|
| 5649 | //-- export the view cells and the pvs
|
---|
[1027] | 5650 | stream << "<HierarchyType name=\"vspTree\" />" << endl;
|
---|
[1021] | 5651 |
|
---|
| 5652 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5653 |
|
---|
| 5654 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5655 |
|
---|
| 5656 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5657 |
|
---|
| 5658 | stream << "</ViewCells>" << endl;
|
---|
| 5659 |
|
---|
| 5660 |
|
---|
| 5661 | //-- export the spatial hierarchy
|
---|
| 5662 |
|
---|
| 5663 | // the type of the view cells hierarchy
|
---|
| 5664 | stream << "<Hierarchy>" << endl;
|
---|
| 5665 | mVspTree->Export(stream);
|
---|
| 5666 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 5667 |
|
---|
| 5668 | stream << "</VisibilitySolution>" << endl;
|
---|
| 5669 |
|
---|
| 5670 |
|
---|
| 5671 | stream.close();
|
---|
| 5672 | cout << "finished" << endl;
|
---|
| 5673 |
|
---|
| 5674 | return true;
|
---|
| 5675 | }
|
---|
| 5676 |
|
---|
| 5677 |
|
---|
| 5678 |
|
---|
[1027] | 5679 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5680 | const bool active) const
|
---|
[1021] | 5681 | {
|
---|
| 5682 | if (!ViewCellsConstructed())
|
---|
| 5683 | return NULL;
|
---|
| 5684 |
|
---|
| 5685 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5686 | return NULL;
|
---|
| 5687 |
|
---|
| 5688 | return mVspTree->GetViewCell(point, active);
|
---|
| 5689 | }
|
---|
| 5690 |
|
---|
| 5691 |
|
---|
| 5692 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5693 | {
|
---|
| 5694 | // matt: TODO
|
---|
| 5695 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5696 |
|
---|
| 5697 | ViewCellContainer leaves;
|
---|
| 5698 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5699 |
|
---|
| 5700 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5701 |
|
---|
| 5702 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5703 | {
|
---|
| 5704 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
[1144] | 5705 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(leaf);
|
---|
[1027] | 5706 |
|
---|
| 5707 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5708 | }
|
---|
| 5709 |
|
---|
[1021] | 5710 | vc->SetMesh(mesh);
|
---|
| 5711 | }
|
---|
| 5712 |
|
---|
| 5713 |
|
---|
| 5714 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5715 | {
|
---|
| 5716 | // matt: TODO
|
---|
| 5717 | return 0;
|
---|
| 5718 | }
|
---|
| 5719 |
|
---|
| 5720 |
|
---|
| 5721 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5722 | const bool createMesh)
|
---|
| 5723 | {
|
---|
| 5724 | float area = 0;
|
---|
| 5725 | float volume = 0;
|
---|
| 5726 |
|
---|
| 5727 | ViewCellContainer leaves;
|
---|
| 5728 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5729 |
|
---|
| 5730 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5731 |
|
---|
| 5732 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5733 | {
|
---|
[1027] | 5734 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5735 |
|
---|
[1144] | 5736 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(leaf);
|
---|
[1021] | 5737 |
|
---|
[1027] | 5738 | const float lVol = box.GetVolume();
|
---|
| 5739 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5740 |
|
---|
| 5741 | //(*it)->SetVolume(vol);
|
---|
| 5742 | //(*it)->SetArea(area);
|
---|
| 5743 |
|
---|
| 5744 | area += lArea;
|
---|
| 5745 | volume += lVol;
|
---|
| 5746 |
|
---|
| 5747 | CreateMesh(*it);
|
---|
[580] | 5748 | }
|
---|
| 5749 |
|
---|
[1021] | 5750 | viewCell->SetVolume(volume);
|
---|
| 5751 | viewCell->SetArea(area);
|
---|
[580] | 5752 | }
|
---|
[1021] | 5753 |
|
---|
[580] | 5754 |
|
---|
[1159] | 5755 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5756 | const bool addRays,
|
---|
| 5757 | const bool storeViewCells)
|
---|
| 5758 | {
|
---|
| 5759 | ViewCellContainer viewcells;
|
---|
| 5760 |
|
---|
| 5761 | ray.mPvsContribution = 0;
|
---|
| 5762 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5763 |
|
---|
| 5764 | static Ray hray;
|
---|
| 5765 | hray.Init(ray);
|
---|
| 5766 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5767 | //Ray hray(ray);
|
---|
| 5768 |
|
---|
| 5769 | float tmin = 0, tmax = 1.0;
|
---|
| 5770 |
|
---|
| 5771 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5772 | return 0;
|
---|
| 5773 |
|
---|
| 5774 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5775 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5776 |
|
---|
| 5777 | // traverse the view space subdivision
|
---|
| 5778 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5779 |
|
---|
| 5780 | if (storeViewCells)
|
---|
| 5781 | { // copy viewcells memory efficiently
|
---|
| 5782 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5783 | ray.mViewCells = viewcells;
|
---|
| 5784 | }
|
---|
| 5785 |
|
---|
| 5786 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5787 |
|
---|
| 5788 | for (; it != viewcells.end(); ++ it)
|
---|
| 5789 | {
|
---|
| 5790 | ViewCell *viewcell = *it;
|
---|
| 5791 |
|
---|
| 5792 | if (viewcell->GetValid())
|
---|
| 5793 | {
|
---|
| 5794 | // if ray not outside of view space
|
---|
| 5795 | float contribution;
|
---|
| 5796 |
|
---|
| 5797 | if (ray.mTerminationObject)
|
---|
| 5798 | {
|
---|
| 5799 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 5800 | ray.mPdf, contribution))
|
---|
| 5801 | {
|
---|
| 5802 | ++ ray.mPvsContribution;
|
---|
| 5803 | }
|
---|
| 5804 |
|
---|
| 5805 | ray.mRelativePvsContribution += contribution;
|
---|
| 5806 | }
|
---|
| 5807 |
|
---|
| 5808 | // for directional sampling it is important to count only contributions
|
---|
| 5809 | // made in one direction!!!
|
---|
| 5810 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
| 5811 | #if COUNT_ORIGIN_OBJECTS
|
---|
| 5812 | if (ray.mOriginObject &&
|
---|
| 5813 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 5814 | ray.mPdf,
|
---|
| 5815 | contribution))
|
---|
| 5816 | {
|
---|
| 5817 | ++ ray.mPvsContribution;
|
---|
| 5818 | ray.mRelativePvsContribution += contribution;
|
---|
| 5819 | }
|
---|
| 5820 | #endif
|
---|
| 5821 | }
|
---|
| 5822 | }
|
---|
| 5823 |
|
---|
| 5824 | // if addrays is true, sampled entities are stored in the pvs
|
---|
| 5825 | if (addRays)
|
---|
| 5826 | {
|
---|
| 5827 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 5828 | {
|
---|
| 5829 | ViewCell *viewcell = *it;
|
---|
| 5830 |
|
---|
| 5831 | if (viewcell->GetValid())
|
---|
| 5832 | {
|
---|
| 5833 | // if ray not outside of view space
|
---|
| 5834 |
|
---|
| 5835 | // add kd cell
|
---|
| 5836 | if (ray.mTerminationObject)
|
---|
| 5837 | {
|
---|
| 5838 | if (!mStoreKdPvs)
|
---|
| 5839 | {
|
---|
[1160] | 5840 | viewcell->AddPvsSample(ray.mTerminationObject, ray.mPdf, ray.mRelativePvsContribution);
|
---|
[1159] | 5841 | }
|
---|
| 5842 | else
|
---|
| 5843 | {
|
---|
| 5844 | /// get current leaf the point
|
---|
| 5845 | KdLeaf *leaf = mOspTree->GetLeaf(ray.mTermination);
|
---|
| 5846 | KdIntersectable *entry = mOspTree->GetOrCreateKdIntersectable(leaf);
|
---|
| 5847 |
|
---|
[1160] | 5848 | viewcell->AddPvsSample(entry, ray.mPdf, ray.mRelativePvsContribution);
|
---|
[1159] | 5849 | }
|
---|
| 5850 | }
|
---|
| 5851 |
|
---|
| 5852 | #if COUNT_ORIGIN_OBJECTS
|
---|
| 5853 | if (ray.mOriginObject)
|
---|
[1160] | 5854 | viewcell->AddPvsSample(ray.mOriginObject, ray.mPdf, ray.mPvsContribution);
|
---|
[1159] | 5855 | #endif
|
---|
| 5856 | }
|
---|
| 5857 | }
|
---|
| 5858 | }
|
---|
| 5859 |
|
---|
| 5860 | return ray.mRelativePvsContribution;
|
---|
| 5861 | }
|
---|
| 5862 |
|
---|
| 5863 |
|
---|
[1021] | 5864 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5865 | {
|
---|
| 5866 | // TODO
|
---|
| 5867 | }
|
---|
[580] | 5868 |
|
---|
[1021] | 5869 |
|
---|
[580] | 5870 | //////////////////////////////////
|
---|
[1002] | 5871 | /*ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
[575] | 5872 | {
|
---|
| 5873 | //TODO
|
---|
| 5874 | return NULL;// new VspBspViewCellsManager();
|
---|
[1002] | 5875 | }*/
|
---|
[580] | 5876 |
|
---|
[860] | 5877 |
|
---|
[878] | 5878 | }
|
---|