[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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[1233] | 10 | #include "HierarchyManager.h"
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[440] | 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[931] | 17 | #include "BoundingBoxConverter.h"
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[979] | 18 | #include "GlRenderer.h"
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[1001] | 19 | #include "ResourceManager.h"
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[1139] | 20 | #include "KdIntersectable.h"
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[1233] | 21 | #include "VspTree.h"
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| 22 | #include "OspTree.h"
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[1259] | 23 | #include "BvHierarchy.h"
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[440] | 24 |
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[1159] | 25 | // should not count origin object for sampling because it disturbs heuristics
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[1166] | 26 | #define SAMPLE_ORIGIN_OBJECTS 0
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[931] | 27 |
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[863] | 28 | namespace GtpVisibilityPreprocessor {
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[860] | 29 |
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| 30 |
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[712] | 31 | // HACK
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| 32 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 33 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 34 |
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[697] | 35 |
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| 36 | template <typename T> class myless
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| 37 | {
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| 38 | public:
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| 39 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 40 | bool operator() (T v1, T v2) const
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| 41 | {
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| 42 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 43 | }
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| 44 | };
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| 45 |
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| 46 |
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[1004] | 47 | ViewCellsManager::ViewCellsManager():
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[480] | 48 | mRenderer(NULL),
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[574] | 49 | mInitialSamples(0),
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[440] | 50 | mConstructionSamples(0),
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| 51 | mPostProcessSamples(0),
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[470] | 52 | mVisualizationSamples(0),
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| 53 | mTotalAreaValid(false),
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[517] | 54 | mTotalArea(0.0f),
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[547] | 55 | mViewCellsFinished(false),
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[562] | 56 | mMaxPvsSize(9999999),
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[564] | 57 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 58 | mMaxPvsRatio(1.0),
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[1145] | 59 | mViewCellPvsIsUpdated(false),
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[1259] | 60 | mPreprocessor(NULL)
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[440] | 61 | {
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[542] | 62 | mViewSpaceBox.Initialize();
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[482] | 63 | ParseEnvironment();
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[580] | 64 |
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[1004] | 65 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 66 | }
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| 67 |
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[517] | 68 |
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[482] | 69 | void ViewCellsManager::ParseEnvironment()
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| 70 | {
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[503] | 71 | // visualization stuff
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[1004] | 72 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 73 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 74 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 75 |
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[1004] | 76 | Environment::GetSingleton()->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 77 |
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[710] | 78 | // HACK
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| 79 | if (0)
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| 80 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 81 | else
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| 82 | mMinPvsSize = 0;
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| 83 |
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[1004] | 84 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 85 |
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[1004] | 86 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 87 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 88 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 89 |
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[1004] | 90 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 91 |
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[1004] | 92 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 93 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 94 |
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[1004] | 95 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 96 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 98 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 99 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 100 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 101 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 102 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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| 103 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 104 |
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[1004] | 105 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 106 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 107 |
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[664] | 108 | char buf[100];
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[1004] | 109 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 110 |
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[660] | 111 |
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[1020] | 112 | // sampling type for view cells construction samples
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[664] | 113 | if (strcmp(buf, "box") == 0)
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[722] | 114 | {
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[660] | 115 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 116 | }
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[664] | 117 | else if (strcmp(buf, "directional") == 0)
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[722] | 118 | {
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[660] | 119 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 120 | }
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[1020] | 121 | else if (strcmp(buf, "object_directional") == 0)
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| 122 | {
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| 123 | mSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 124 | }
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[1022] | 125 | /*else if (strcmp(buf, "interior") == 0)
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| 126 | {
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| 127 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 128 | }*/
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[1020] | 129 | else
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| 130 | {
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[666] | 131 | Debug << "error! wrong sampling type" << endl;
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| 132 | exit(0);
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| 133 | }
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[660] | 134 |
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[1020] | 135 | // sampling type for evaluation samples
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[1004] | 136 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 137 |
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| 138 | if (strcmp(buf, "box") == 0)
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| 139 | {
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| 140 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 141 | }
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| 142 | else if (strcmp(buf, "directional") == 0)
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| 143 | {
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| 144 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 145 | }
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[1020] | 146 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 147 | {
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[1020] | 148 | mEvaluationSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 149 | }
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[1022] | 150 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 151 | {
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| 152 | mEvaluationSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 153 | }*/
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[1020] | 154 | else
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| 155 | {
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[722] | 156 | Debug << "error! wrong sampling type" << endl;
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| 157 | exit(0);
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| 158 | }
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[503] | 159 |
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[1004] | 160 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 161 |
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[734] | 162 | if (strcmp(buf, "perobject") == 0)
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[728] | 163 | {
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| 164 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 165 | }
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| 166 | else if (strcmp(buf, "directional") == 0)
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| 167 | {
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| 168 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 169 | }
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| 170 | else
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| 171 | {
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| 172 | Debug << "error! wrong sampling type" << endl;
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| 173 | exit(0);
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| 174 | }
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| 175 |
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[1004] | 176 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 177 |
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[482] | 178 | if (strcmp(buf, "PVS") == 0)
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| 179 | mColorCode = 1;
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| 180 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 181 | mColorCode = 2;
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| 182 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 183 | mColorCode = 3;
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| 184 | else
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| 185 | mColorCode = 0;
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| 186 |
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[664] | 187 |
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[710] | 188 |
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[1027] | 189 | Debug << "************ View Cells options ***************" << endl;
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[664] | 190 | Debug << "color code: " << mColorCode << endl;
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| 191 |
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| 192 | Debug << "export rays: " << mExportRays << endl;
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| 193 | Debug << "export geometry: " << mExportGeometry << endl;
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| 194 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 195 |
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[710] | 196 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 197 |
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| 198 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 199 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 200 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 201 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 202 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 203 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 204 | Debug << "export to file: " << mExportViewCells << endl;
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| 205 |
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[801] | 206 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 207 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 208 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 209 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 210 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 211 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 212 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 213 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 214 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 215 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 216 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 217 |
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| 218 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 219 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[1121] | 220 |
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[664] | 221 | Debug << endl;
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[440] | 222 | }
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| 223 |
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[485] | 224 |
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[440] | 225 | ViewCellsManager::~ViewCellsManager()
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| 226 | {
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[1020] | 227 | // HACK: if view cells tree does not
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| 228 | // take care of view cells, we have to do it
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| 229 | // question: rather create view cells resource manager?
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[598] | 230 | if (!ViewCellsTreeConstructed())
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[1141] | 231 | {
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[598] | 232 | CLEAR_CONTAINER(mViewCells);
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[1141] | 233 | }
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| 234 |
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[1002] | 235 | DEL_PTR(mViewCellsTree);
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[440] | 236 | }
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| 237 |
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[1221] | 238 |
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| 239 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 240 | {
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| 241 | Mesh *m = vc->GetMesh();
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| 242 |
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| 243 | if (m) {
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| 244 | m->ComputeBoundingBox();
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| 245 | return m->mBox;
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| 246 | }
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[485] | 247 |
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[859] | 248 | AxisAlignedBox3 box;
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| 249 |
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| 250 | box.Initialize();
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| 251 |
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| 252 | if (!vc->IsLeaf()) {
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| 253 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 254 |
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| 255 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 256 | for (; it != vci->mChildren.end(); ++it) {
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| 257 | box.Include(GetViewCellBox(*it));
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| 258 | }
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| 259 | }
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| 260 |
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| 261 | return box;
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| 262 | }
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| 263 |
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[693] | 264 | void ViewCellsManager::CollectEmptyViewCells()
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| 265 | {
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| 266 | mEmptyViewCells.clear();
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| 267 | ViewCellContainer leaves;
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| 268 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 269 |
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| 270 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 271 |
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| 272 | cout << "collecting empty view cells" << endl;
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[694] | 273 |
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[693] | 274 | for (it = leaves.begin(); it != it_end; ++ it)
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| 275 | {
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| 276 | if ((*it)->GetPvs().Empty())
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| 277 | {
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| 278 | mEmptyViewCells.push_back(*it);
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| 279 | }
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| 280 | }
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[694] | 281 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 282 | }
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| 283 |
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| 284 |
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[1021] | 285 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
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| 286 | {
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| 287 | return false;
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| 288 | }
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| 289 |
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| 290 |
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[694] | 291 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 292 | {
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| 293 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 294 |
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| 295 | char buf[50];
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| 296 | int i = 0;
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| 297 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 298 | {
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| 299 | if (!(*it)->GetPvs().Empty())
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| 300 | {
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[694] | 301 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 302 | Exporter *exporter = Exporter::GetExporter(buf);
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| 303 |
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| 304 | if (exporter && i < 20)
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| 305 | {
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[694] | 306 | Ray *pray = (*it)->mPiercingRays[0];
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[728] | 307 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: "
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[1168] | 308 | << (*it)->GetPvs().CountObjectsInPvs() << " " << (int)pray->intersections.size() << endl;
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[694] | 309 |
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| 310 | exporter->ExportRays((*it)->mPiercingRays);
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| 311 |
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| 312 | exporter->SetFilled();
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| 313 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 314 |
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| 315 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 316 | {
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| 317 | if (pray->intersections[j].mObject)
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| 318 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 319 | }
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| 320 |
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| 321 | //exporter->SetWireframe();
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| 322 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 323 | exporter->ExportGeometry(obj);
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| 324 |
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| 325 | exporter->SetFilled();
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| 326 |
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| 327 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 328 | ExportViewCellGeometry(exporter, *it);
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[694] | 329 |
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| 330 | delete exporter;
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[693] | 331 | }
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| 332 |
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[694] | 333 |
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[693] | 334 | ++ i;
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| 335 | }
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| 336 | }
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[1002] | 337 | Debug << "\nSampled " << i << " new view cells ("
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| 338 | << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 339 | }
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| 340 |
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| 341 |
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[574] | 342 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 343 | const int sampleType,
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| 344 | VssRayContainer &passSamples) const
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[527] | 345 | {
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[570] | 346 | SimpleRayContainer simpleRays;
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[540] | 347 |
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[1221] | 348 | const long startTime = GetTime();
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[564] | 349 |
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[1221] | 350 | mPreprocessor->GenerateRays(samplesPerPass, sampleType, simpleRays);
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| 351 |
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| 352 | Debug << "generated " << mInitialSamples << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 353 |
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[573] | 354 | // shoot simple ray and add it to importance samples
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[1145] | 355 | mPreprocessor->CastRays(simpleRays, passSamples);
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[1221] | 356 |
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| 357 | Debug << "cast " << mInitialSamples << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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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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| 363 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 364 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 365 | {
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| 366 | cout << "disposing samples ... ";
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[582] | 367 | long startTime = GetTime();
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| 368 | int n = (int)rays.size();
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| 369 |
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[573] | 370 | if (outRays)
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[542] | 371 | {
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[574] | 372 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 373 |
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| 374 | for (it = rays.begin(); it != it_end; ++ it)
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| 375 | {
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| 376 | outRays->push_back(*it);
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| 377 | }
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[573] | 378 | }
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| 379 | else
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| 380 | {
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[639] | 381 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 382 |
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| 383 | for (it = rays.begin(); it != it_end; ++ it)
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| 384 | {
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| 385 | //(*it)->Unref();
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| 386 | if (!(*it)->IsActive())
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| 387 | delete (*it);
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| 388 | }
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[573] | 389 | }
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[639] | 390 |
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[574] | 391 | cout << "finished" << endl;
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[582] | 392 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 393 | }
|
---|
[570] | 394 |
|
---|
| 395 |
|
---|
[573] | 396 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 397 | {
|
---|
[1145] | 398 | mPreprocessor = preprocessor;
|
---|
| 399 |
|
---|
[573] | 400 | int numSamples = 0;
|
---|
[1077] | 401 |
|
---|
[573] | 402 | SimpleRayContainer simpleRays;
|
---|
[574] | 403 | VssRayContainer initialSamples;
|
---|
[540] | 404 |
|
---|
[574] | 405 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
|
---|
[712] | 406 |
|
---|
[752] | 407 | long startTime = GetTime();
|
---|
| 408 |
|
---|
[573] | 409 | //-- construction rays => we use uniform samples for this
|
---|
[1221] | 410 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
|
---|
[573] | 411 |
|
---|
[1221] | 412 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 413 |
|
---|
[660] | 414 |
|
---|
[573] | 415 | // construct view cells
|
---|
[752] | 416 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 417 |
|
---|
[727] | 418 | // initial samples count for overall samples ...
|
---|
[752] | 419 | numSamples += mInitialSamples;
|
---|
[542] | 420 |
|
---|
[574] | 421 | // rays can be passed or deleted
|
---|
[639] | 422 | disposeRays(initialSamples, outRays);
|
---|
[752] | 423 |
|
---|
| 424 | cout << "time needed for initial construction: "
|
---|
| 425 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 426 |
|
---|
| 427 | Debug << "time needed for initial construction: "
|
---|
| 428 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 429 |
|
---|
[1027] | 430 |
|
---|
[752] | 431 | // take post processing time
|
---|
| 432 | startTime = GetTime();
|
---|
| 433 |
|
---|
[660] | 434 | // -- stats after contruction
|
---|
| 435 | ResetViewCells();
|
---|
[667] | 436 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
| 437 |
|
---|
[1002] | 438 |
|
---|
[1077] | 439 | if (0) // export initial view cells
|
---|
[660] | 440 | {
|
---|
[712] | 441 | const char filename[] = "view_cells.wrl";
|
---|
| 442 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
[660] | 443 |
|
---|
[712] | 444 |
|
---|
[660] | 445 | if (exporter)
|
---|
| 446 | {
|
---|
[712] | 447 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
|
---|
[660] | 448 | if (mExportGeometry)
|
---|
[712] | 449 | {
|
---|
[660] | 450 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 451 | }
|
---|
[660] | 452 |
|
---|
[750] | 453 | exporter->SetWireframe();
|
---|
[660] | 454 | ExportViewCellsForViz(exporter);
|
---|
| 455 |
|
---|
| 456 | delete exporter;
|
---|
[712] | 457 | cout << "finished" << endl;
|
---|
[660] | 458 | }
|
---|
| 459 | }
|
---|
| 460 |
|
---|
[573] | 461 | //-- guided rays are used for further sampling
|
---|
[574] | 462 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[570] | 463 |
|
---|
[666] | 464 | // should we use directional samples?
|
---|
[694] | 465 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 466 |
|
---|
[1074] | 467 | //-- do some more sampling
|
---|
[573] | 468 | while (numSamples < n)
|
---|
| 469 | {
|
---|
[596] | 470 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 471 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 472 |
|
---|
[574] | 473 | VssRayContainer constructionSamples;
|
---|
| 474 |
|
---|
[694] | 475 | const int samplingType = mSamplingType;
|
---|
| 476 | /*dirSamples ?
|
---|
[574] | 477 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
[694] | 478 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
|
---|
[667] | 479 |
|
---|
[720] | 480 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 481 |
|
---|
[727] | 482 | // cast new samples
|
---|
[574] | 483 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 484 | samplingType,
|
---|
[574] | 485 | constructionSamples);
|
---|
| 486 |
|
---|
| 487 | cout << "finished" << endl;
|
---|
| 488 |
|
---|
| 489 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 490 |
|
---|
[727] | 491 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 492 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 493 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 494 |
|
---|
[574] | 495 | cout << "finished" << endl;
|
---|
| 496 |
|
---|
| 497 |
|
---|
[639] | 498 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 499 |
|
---|
| 500 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 501 | }
|
---|
[752] | 502 |
|
---|
[573] | 503 | //-- post processing
|
---|
| 504 | VssRayContainer postProcessSamples;
|
---|
[570] | 505 |
|
---|
[1074] | 506 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 507 |
|
---|
| 508 | // cast post processing samples rays (storing the view cells if wanted)
|
---|
[574] | 509 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 510 | mSamplingType,
|
---|
[574] | 511 | postProcessSamples);
|
---|
[660] | 512 |
|
---|
[1074] | 513 | cout << "finished" << endl;
|
---|
[660] | 514 |
|
---|
| 515 | // stats before post processing (i.e., merge)
|
---|
| 516 | EvaluateViewCellsStats();
|
---|
| 517 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 518 |
|
---|
| 519 | mRenderer->RenderScene();
|
---|
| 520 | SimulationStatistics ss;
|
---|
| 521 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 522 |
|
---|
| 523 | Debug << ss << endl;
|
---|
| 524 |
|
---|
| 525 |
|
---|
[574] | 526 | cout << "starting post processing and visualization" << endl;
|
---|
| 527 |
|
---|
[660] | 528 |
|
---|
[666] | 529 | // store view cells for postprocessing
|
---|
[574] | 530 | const bool storeViewCells = true;
|
---|
[605] | 531 |
|
---|
[660] | 532 |
|
---|
[605] | 533 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 534 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 535 |
|
---|
[720] | 536 | //-- post processing (e.g.,merging) of the view cells
|
---|
[1077] | 537 | if (1) PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 538 |
|
---|
[955] | 539 | cout << "time needed for post processing (merge) step: "
|
---|
[752] | 540 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 541 |
|
---|
[955] | 542 | Debug << "time needed for post processing (merge) step: "
|
---|
[752] | 543 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 544 |
|
---|
[1002] | 545 | disposeRays(postProcessSamples, outRays);
|
---|
| 546 |
|
---|
[801] | 547 |
|
---|
[1002] | 548 | //return 1;
|
---|
[801] | 549 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
| 550 | if (mEvaluateViewCells)
|
---|
| 551 | {
|
---|
[1145] | 552 | EvalViewCellPartition();
|
---|
[801] | 553 | }
|
---|
[1002] | 554 |
|
---|
| 555 |
|
---|
[574] | 556 | //-- visualization
|
---|
[1074] | 557 |
|
---|
[666] | 558 | if (mShowVisualization)
|
---|
| 559 | {
|
---|
| 560 | VssRayContainer visualizationSamples;
|
---|
[574] | 561 |
|
---|
[666] | 562 | //-- construction rays => we use uniform samples for this
|
---|
| 563 | CastPassSamples(mVisualizationSamples,
|
---|
| 564 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 565 | visualizationSamples);
|
---|
[574] | 566 |
|
---|
[666] | 567 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 568 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 569 |
|
---|
[666] | 570 | // different visualizations
|
---|
| 571 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 572 |
|
---|
[666] | 573 | disposeRays(visualizationSamples, outRays);
|
---|
| 574 | }
|
---|
[574] | 575 |
|
---|
[573] | 576 | return numSamples;
|
---|
[527] | 577 | }
|
---|
| 578 |
|
---|
[547] | 579 |
|
---|
[752] | 580 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 581 | const int nViewCells)
|
---|
[728] | 582 | {
|
---|
| 583 | std::ofstream outstream;
|
---|
| 584 | outstream.open(filename.c_str());
|
---|
| 585 |
|
---|
| 586 | ViewCellContainer viewCells;
|
---|
[735] | 587 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 588 |
|
---|
| 589 | float maxRenderCost, minRenderCost;
|
---|
[734] | 590 |
|
---|
| 591 | // sort by render cost
|
---|
| 592 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 593 |
|
---|
| 594 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 595 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 596 |
|
---|
[991] | 597 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 598 |
|
---|
[997] | 599 | int histoIntervals;
|
---|
[1004] | 600 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 601 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 602 |
|
---|
[997] | 603 | int histoMaxVal;
|
---|
[1004] | 604 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 605 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 606 |
|
---|
[997] | 607 |
|
---|
[728] | 608 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 609 | const float stepSize = range / (float)intervals;
|
---|
[728] | 610 |
|
---|
[735] | 611 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 612 |
|
---|
| 613 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 614 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 615 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 616 |
|
---|
[736] | 617 | int j = 0;
|
---|
[735] | 618 | int i = 0;
|
---|
| 619 |
|
---|
[734] | 620 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 621 |
|
---|
[744] | 622 | // count for integral
|
---|
| 623 | float volSum = 0;
|
---|
| 624 | int smallerCostSum = 0;
|
---|
[735] | 625 |
|
---|
[734] | 626 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 627 | while (1)
|
---|
| 628 | {
|
---|
[744] | 629 | // count for histogram value
|
---|
| 630 | float volDif = 0;
|
---|
| 631 | int smallerCostDif = 0;
|
---|
[736] | 632 |
|
---|
[734] | 633 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 634 | {
|
---|
[744] | 635 | volSum += viewCells[i]->GetVolume();
|
---|
| 636 | volDif += viewCells[i]->GetVolume();
|
---|
| 637 |
|
---|
[734] | 638 | ++ i;
|
---|
[744] | 639 | ++ smallerCostSum;
|
---|
| 640 | ++ smallerCostDif;
|
---|
[734] | 641 | }
|
---|
[736] | 642 |
|
---|
[744] | 643 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 644 | break;
|
---|
[736] | 645 |
|
---|
[744] | 646 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 647 | const float volRatioSum = volSum / totalVol;
|
---|
| 648 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 649 |
|
---|
[991] | 650 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 651 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 652 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 653 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 654 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 655 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 656 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 657 |
|
---|
| 658 | // increase current render cost
|
---|
[734] | 659 | currentRenderCost += stepSize;
|
---|
| 660 | }
|
---|
[735] | 661 |
|
---|
[734] | 662 | outstream.close();
|
---|
| 663 | }
|
---|
| 664 |
|
---|
[735] | 665 |
|
---|
[979] | 666 |
|
---|
| 667 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 668 | ObjectContainer *objects,
|
---|
| 669 | const bool finalizeViewCells,
|
---|
| 670 | BoundingBoxConverter *bconverter)
|
---|
| 671 |
|
---|
| 672 | {
|
---|
| 673 | ViewCellsParser parser;
|
---|
| 674 |
|
---|
| 675 | ViewCellsManager *vm = NULL;
|
---|
| 676 |
|
---|
[1221] | 677 | if (parser.ParseViewCellsFile(filename, &vm, objects, bconverter))
|
---|
[979] | 678 | {
|
---|
| 679 | long startTime = GetTime();
|
---|
| 680 |
|
---|
| 681 | //vm->PrepareLoadedViewCells();
|
---|
| 682 | vm->ResetViewCells();
|
---|
| 683 |
|
---|
| 684 | vm->mViewCellsFinished = true;
|
---|
| 685 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 686 |
|
---|
| 687 | // create the meshes and compute volumes
|
---|
| 688 | if (finalizeViewCells)
|
---|
| 689 | {
|
---|
| 690 | vm->FinalizeViewCells(true);
|
---|
| 691 | vm->mViewCellsTree->AssignRandomColors();
|
---|
| 692 | }
|
---|
| 693 |
|
---|
| 694 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 695 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 696 | }
|
---|
| 697 | else
|
---|
| 698 | {
|
---|
| 699 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 700 | DEL_PTR(vm);
|
---|
| 701 | }
|
---|
| 702 |
|
---|
| 703 | return vm;
|
---|
| 704 | }
|
---|
| 705 |
|
---|
| 706 |
|
---|
| 707 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 708 | const bool exportPvs,
|
---|
| 709 | const ObjectContainer &objects)
|
---|
| 710 | {
|
---|
[1002] | 711 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[997] | 712 | return false;
|
---|
| 713 |
|
---|
[979] | 714 | cout << "exporting view cells to xml ... ";
|
---|
| 715 |
|
---|
[1201] | 716 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 717 |
|
---|
| 718 | // for output we need unique ids for each view cell
|
---|
| 719 | CreateUniqueViewCellIds();
|
---|
| 720 |
|
---|
| 721 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 722 | stream << "<VisibilitySolution>" << endl;
|
---|
| 723 |
|
---|
| 724 | //-- the view space bounding box
|
---|
[1262] | 725 | //stream << "<ViewSpaceBox"
|
---|
| 726 | // << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 727 | // << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
[979] | 728 |
|
---|
[1262] | 729 | if (exportPvs)
|
---|
| 730 | {
|
---|
| 731 | //-- export bounding boxes
|
---|
| 732 | stream << "<BoundingBoxes>" << endl;
|
---|
[979] | 733 |
|
---|
[1262] | 734 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[979] | 735 |
|
---|
[1262] | 736 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 737 | {
|
---|
[979] | 738 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 739 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 740 |
|
---|
| 741 | //-- the bounding boxes
|
---|
| 742 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 743 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 744 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 745 | }
|
---|
[979] | 746 |
|
---|
[1262] | 747 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 748 | }
|
---|
[979] | 749 |
|
---|
[1262] | 750 |
|
---|
[1263] | 751 | // the type of hierarchy: this must be known before to build the view cells manager
|
---|
| 752 | //stream << "<ViewSpaceHierarchyType name=\"vspBspTree\" />" << endl;
|
---|
[1262] | 753 |
|
---|
[979] | 754 | //-- export the view cells and the pvs
|
---|
| 755 |
|
---|
| 756 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 757 |
|
---|
| 758 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 759 |
|
---|
| 760 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 761 |
|
---|
| 762 | stream << "</ViewCells>" << endl;
|
---|
| 763 |
|
---|
| 764 |
|
---|
[1262] | 765 | //-- export the view space hierarchy
|
---|
[979] | 766 |
|
---|
[1262] | 767 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 768 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 769 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 770 |
|
---|
[979] | 771 | mVspBspTree->Export(stream);
|
---|
[1262] | 772 | stream << endl << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 773 |
|
---|
| 774 | stream << "</VisibilitySolution>" << endl;
|
---|
| 775 |
|
---|
| 776 |
|
---|
| 777 | stream.close();
|
---|
| 778 | cout << "finished" << endl;
|
---|
| 779 |
|
---|
| 780 | return true;
|
---|
| 781 | }
|
---|
| 782 |
|
---|
| 783 |
|
---|
[735] | 784 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 785 | const int nViewCells)
|
---|
[734] | 786 | {
|
---|
| 787 | std::ofstream outstream;
|
---|
| 788 | outstream.open(filename.c_str());
|
---|
| 789 |
|
---|
| 790 | ViewCellContainer viewCells;
|
---|
[735] | 791 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 792 |
|
---|
[997] | 793 | int maxPvs, maxVal, minVal;
|
---|
[734] | 794 |
|
---|
[997] | 795 | // sort by pvs size
|
---|
[735] | 796 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 797 |
|
---|
[1142] | 798 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
[997] | 799 | minVal = 0;
|
---|
| 800 |
|
---|
[991] | 801 | // hack: normalize pvs size
|
---|
[997] | 802 | int histoMaxVal;
|
---|
[1004] | 803 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 804 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 805 |
|
---|
[1121] | 806 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 807 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 808 |
|
---|
[997] | 809 | int histoIntervals;
|
---|
[1004] | 810 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 811 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 812 |
|
---|
[997] | 813 | const int range = maxVal - minVal;
|
---|
[735] | 814 | int stepSize = range / intervals;
|
---|
| 815 |
|
---|
[997] | 816 | // set step size to avoid endless loop
|
---|
[735] | 817 | if (!stepSize) stepSize = 1;
|
---|
[979] | 818 |
|
---|
| 819 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 820 |
|
---|
[735] | 821 |
|
---|
| 822 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 823 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 824 |
|
---|
[997] | 825 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
[735] | 826 |
|
---|
[997] | 827 |
|
---|
[735] | 828 | int i = 0;
|
---|
| 829 | int j = 0;
|
---|
[734] | 830 |
|
---|
[744] | 831 | float volSum = 0;
|
---|
| 832 | int smallerSum = 0;
|
---|
| 833 |
|
---|
[735] | 834 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 835 |
|
---|
[997] | 836 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 837 | {
|
---|
[744] | 838 | float volDif = 0;
|
---|
| 839 | int smallerDif = 0;
|
---|
[736] | 840 |
|
---|
[997] | 841 | while ((i < (int)viewCells.size()) &&
|
---|
[1142] | 842 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
[735] | 843 | {
|
---|
[744] | 844 | volDif += viewCells[i]->GetVolume();
|
---|
| 845 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 846 |
|
---|
[735] | 847 | ++ i;
|
---|
[744] | 848 | ++ smallerDif;
|
---|
| 849 | ++ smallerSum;
|
---|
[735] | 850 | }
|
---|
[736] | 851 |
|
---|
[997] | 852 | if (0 && (i < (int)viewCells.size()))
|
---|
[1142] | 853 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i])
|
---|
[1121] | 854 | << " " << currentPvs << endl;
|
---|
[997] | 855 |
|
---|
[744] | 856 | const float volRatioDif = volDif / totalVol;
|
---|
| 857 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 858 |
|
---|
[997] | 859 | outstream << "#Pass\n" << j << endl;
|
---|
| 860 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 861 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 862 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 863 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 864 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 865 |
|
---|
| 866 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 867 |
|
---|
[997] | 868 | //-- increase current pvs size to define next interval
|
---|
| 869 | currentPvs += stepSize;
|
---|
[728] | 870 | }
|
---|
[991] | 871 |
|
---|
[735] | 872 | outstream.close();
|
---|
[728] | 873 | }
|
---|
| 874 |
|
---|
[735] | 875 |
|
---|
[1002] | 876 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 877 | {
|
---|
| 878 | return mExportPvs;
|
---|
| 879 | }
|
---|
| 880 |
|
---|
| 881 |
|
---|
[1259] | 882 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 883 | const Vector3 &hitPoint,
|
---|
| 884 | ViewCell *vc,
|
---|
| 885 | const float pdf,
|
---|
| 886 | float &contribution) const
|
---|
| 887 | {
|
---|
| 888 | if (!obj) return false;
|
---|
| 889 |
|
---|
| 890 | // potentially visible objects
|
---|
| 891 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 892 | }
|
---|
| 893 |
|
---|
| 894 |
|
---|
[1145] | 895 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 896 | {
|
---|
| 897 | int samplesPerPass;
|
---|
| 898 | int numSamples;
|
---|
| 899 | int castSamples = 0;
|
---|
| 900 |
|
---|
[664] | 901 | char s[64];
|
---|
| 902 |
|
---|
[1004] | 903 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 904 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 905 |
|
---|
[664] | 906 | char statsPrefix[100];
|
---|
[1004] | 907 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 908 |
|
---|
[664] | 909 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 910 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 911 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 912 |
|
---|
[666] | 913 | // should directional sampling be used?
|
---|
[722] | 914 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 915 |
|
---|
[801] | 916 | cout << "reseting pvs ... ";
|
---|
| 917 |
|
---|
[1145] | 918 | const bool startFromZero = true;
|
---|
[801] | 919 |
|
---|
[666] | 920 | // reset pvs and start over from zero
|
---|
| 921 | if (startFromZero)
|
---|
| 922 | {
|
---|
| 923 | mViewCellsTree->ResetPvs();
|
---|
| 924 | }
|
---|
[1145] | 925 | else // start from current sampless
|
---|
[666] | 926 | {
|
---|
[1145] | 927 | // statistics before casting more samples
|
---|
[666] | 928 | cout << "compute new statistics ... ";
|
---|
| 929 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 930 | string fName = string(statsPrefix) + string(s);
|
---|
| 931 |
|
---|
| 932 | mViewCellsTree->ExportStats(fName);
|
---|
| 933 | cout << "finished" << endl;
|
---|
| 934 | }
|
---|
[744] | 935 | cout << "finished" << endl;
|
---|
| 936 |
|
---|
[1178] | 937 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 938 |
|
---|
[660] | 939 | while (castSamples < numSamples)
|
---|
| 940 | {
|
---|
[664] | 941 | VssRayContainer evaluationSamples;
|
---|
[663] | 942 |
|
---|
[722] | 943 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 944 | /* dirSamples ?
|
---|
[664] | 945 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 946 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 947 | */
|
---|
[1004] | 948 | long startTime = GetTime();
|
---|
| 949 |
|
---|
[664] | 950 | //-- construction rays => we use uniform samples for this
|
---|
[1004] | 951 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 952 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 953 |
|
---|
[664] | 954 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 955 |
|
---|
| 956 | castSamples += samplesPerPass;
|
---|
| 957 |
|
---|
[1004] | 958 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 959 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 960 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 961 |
|
---|
[1004] | 962 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 963 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 964 |
|
---|
| 965 | startTime = GetTime();
|
---|
| 966 |
|
---|
[664] | 967 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 968 |
|
---|
[1004] | 969 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 970 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 971 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 972 |
|
---|
[1004] | 973 | startTime = GetTime();
|
---|
[801] | 974 |
|
---|
[1004] | 975 | cout << "compute new statistics ... ";
|
---|
| 976 | Debug << "compute new statistics ... ";
|
---|
| 977 |
|
---|
[801] | 978 | //-- propagate pvs or pvs size information
|
---|
[752] | 979 | ObjectPvs pvs;
|
---|
| 980 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 981 |
|
---|
[801] | 982 | //-- output stats
|
---|
[667] | 983 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 984 | string fileName = string(statsPrefix) + string(s);
|
---|
| 985 |
|
---|
| 986 | mViewCellsTree->ExportStats(fileName);
|
---|
| 987 |
|
---|
[1004] | 988 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 989 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 990 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 991 |
|
---|
| 992 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 993 | }
|
---|
[728] | 994 |
|
---|
[997] | 995 |
|
---|
| 996 | //-- histogram
|
---|
| 997 |
|
---|
[735] | 998 | bool useHisto;
|
---|
[997] | 999 | int histoStepSize;
|
---|
[693] | 1000 |
|
---|
[1004] | 1001 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 1002 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 1003 |
|
---|
[744] | 1004 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 1005 |
|
---|
| 1006 |
|
---|
[735] | 1007 | if (useHisto)
|
---|
[734] | 1008 | {
|
---|
[735] | 1009 | // evaluate view cells in a histogram
|
---|
| 1010 | char s[64];
|
---|
| 1011 |
|
---|
[997] | 1012 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1013 | {
|
---|
[997] | 1014 | string filename;
|
---|
[744] | 1015 |
|
---|
[997] | 1016 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1017 | #if 0
|
---|
[744] | 1018 | //-- evaluate histogram for render cost
|
---|
| 1019 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1020 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1021 |
|
---|
| 1022 | EvalViewCellHistogram(filename, pass);
|
---|
| 1023 |
|
---|
[997] | 1024 | #endif
|
---|
[744] | 1025 | //////////////////////////////////////////
|
---|
[752] | 1026 | //-- evaluate histogram for pvs size
|
---|
[744] | 1027 |
|
---|
| 1028 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1029 |
|
---|
| 1030 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1031 | filename = string(statsPrefix) + string(s);
|
---|
| 1032 |
|
---|
| 1033 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1034 | }
|
---|
[734] | 1035 | }
|
---|
[660] | 1036 | }
|
---|
| 1037 |
|
---|
[704] | 1038 |
|
---|
| 1039 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1040 | {
|
---|
[704] | 1041 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1042 | }
|
---|
[660] | 1043 |
|
---|
[703] | 1044 |
|
---|
[1145] | 1045 | /// Returns index of the best view cells of the neighborhood
|
---|
[704] | 1046 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 1047 | {
|
---|
[705] | 1048 | int bestViewCellIdx = 0;
|
---|
[703] | 1049 |
|
---|
[704] | 1050 | float mergeCost = Limits::Infinity;
|
---|
| 1051 | int i = 0;
|
---|
[703] | 1052 |
|
---|
[734] | 1053 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1054 |
|
---|
[734] | 1055 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1056 | {
|
---|
[734] | 1057 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1058 |
|
---|
| 1059 | if (mc < mergeCost)
|
---|
[704] | 1060 | {
|
---|
| 1061 | mergeCost = mc;
|
---|
| 1062 | bestViewCellIdx = i;
|
---|
[703] | 1063 | }
|
---|
[704] | 1064 | }
|
---|
[703] | 1065 |
|
---|
[704] | 1066 | return bestViewCellIdx;
|
---|
| 1067 | }
|
---|
[703] | 1068 |
|
---|
| 1069 |
|
---|
[728] | 1070 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1071 | {
|
---|
| 1072 | mMaxFilterSize = size;
|
---|
| 1073 | }
|
---|
| 1074 |
|
---|
| 1075 |
|
---|
| 1076 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1077 | {
|
---|
| 1078 | switch (mRenderCostEvaluationType)
|
---|
| 1079 | {
|
---|
| 1080 | case PER_OBJECT:
|
---|
[752] | 1081 | //cout << "perobject" << endl;
|
---|
| 1082 | return 1.0f;
|
---|
[728] | 1083 |
|
---|
| 1084 | case PER_TRIANGLE:
|
---|
[1145] | 1085 | {//cout << "pertriangle" << endl;
|
---|
[728] | 1086 | // HACK
|
---|
| 1087 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1088 |
|
---|
| 1089 | // HACK: assume meshes are triangles
|
---|
| 1090 | if (mi->GetMesh())
|
---|
| 1091 | {
|
---|
[1145] | 1092 | return (float)mi->GetMesh()->mFaces.size();
|
---|
[728] | 1093 | }
|
---|
| 1094 | }
|
---|
| 1095 | default:
|
---|
[752] | 1096 | cout << "default" << endl;
|
---|
| 1097 | return 1.0f;
|
---|
[728] | 1098 | }
|
---|
| 1099 |
|
---|
| 1100 | // should not come here
|
---|
[752] | 1101 | return 0.0f;
|
---|
[728] | 1102 | }
|
---|
| 1103 |
|
---|
| 1104 |
|
---|
[704] | 1105 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1106 | const ViewCellContainer &viewCells)
|
---|
| 1107 | {
|
---|
| 1108 | ViewCell *root = currentViewCell;
|
---|
| 1109 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1110 |
|
---|
[704] | 1111 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1112 |
|
---|
[704] | 1113 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1114 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 1115 |
|
---|
[705] | 1116 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 1117 | //const float maxAvgCost = 350;
|
---|
| 1118 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1119 | {
|
---|
[704] | 1120 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1121 |
|
---|
[704] | 1122 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1123 |
|
---|
[704] | 1124 | // remove from vector
|
---|
| 1125 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1126 | neighborhood.pop_back();
|
---|
[705] | 1127 |
|
---|
[713] | 1128 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 1129 | if (!bestViewCell || !root)
|
---|
| 1130 | cout << "warning!!" << endl;
|
---|
[705] | 1131 |
|
---|
[704] | 1132 | // create new root of the hierarchy
|
---|
| 1133 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1134 | }
|
---|
| 1135 |
|
---|
[704] | 1136 | return root;
|
---|
[703] | 1137 | }
|
---|
| 1138 |
|
---|
[704] | 1139 |
|
---|
[713] | 1140 | struct SortableViewCellEntry {
|
---|
| 1141 |
|
---|
[1174] | 1142 | SortableViewCellEntry() {}
|
---|
| 1143 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1144 |
|
---|
[1174] | 1145 | float mValue;
|
---|
| 1146 | ViewCell *mViewCell;
|
---|
| 1147 |
|
---|
| 1148 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1149 | return a.mValue < b.mValue;
|
---|
| 1150 | }
|
---|
[713] | 1151 | };
|
---|
| 1152 |
|
---|
[1174] | 1153 |
|
---|
| 1154 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1155 | const ViewCellContainer &viewCells)
|
---|
[713] | 1156 | {
|
---|
| 1157 |
|
---|
| 1158 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1159 | int i, j;
|
---|
| 1160 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1161 | if (viewCells[i] != currentViewCell)
|
---|
| 1162 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1163 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1164 | viewCells[i]);
|
---|
| 1165 | }
|
---|
| 1166 | neighborhood.resize(j);
|
---|
| 1167 |
|
---|
| 1168 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1169 |
|
---|
| 1170 | ViewCell *root = currentViewCell;
|
---|
| 1171 |
|
---|
| 1172 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1173 |
|
---|
| 1174 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1175 | //-- use priority queue to merge leaf pairs
|
---|
| 1176 |
|
---|
| 1177 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1178 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1179 | {
|
---|
[713] | 1180 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1181 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1182 | // create new root of the hierarchy
|
---|
| 1183 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1184 | // set negative cost so that this view cell gets deleted
|
---|
| 1185 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1186 | }
|
---|
[713] | 1187 |
|
---|
| 1188 | return root;
|
---|
| 1189 | }
|
---|
| 1190 |
|
---|
| 1191 | void
|
---|
| 1192 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1193 | ) const
|
---|
| 1194 | {
|
---|
| 1195 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 1196 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1197 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1198 |
|
---|
| 1199 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1200 | DeleteLocalMergeTree(*it);
|
---|
| 1201 | vci->mChildren.clear();
|
---|
| 1202 | delete vci;
|
---|
| 1203 | }
|
---|
| 1204 | }
|
---|
| 1205 |
|
---|
[1021] | 1206 |
|
---|
[564] | 1207 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1208 | int minPvsSize,
|
---|
[562] | 1209 | int maxPvsSize) const
|
---|
[547] | 1210 | {
|
---|
[569] | 1211 |
|
---|
[1168] | 1212 | if ((vc->GetPvs().CountObjectsInPvs() > maxPvsSize) ||
|
---|
| 1213 | (vc->GetPvs().CountObjectsInPvs() < minPvsSize))
|
---|
[564] | 1214 | {
|
---|
[710] | 1215 | return false;
|
---|
[561] | 1216 | }
|
---|
[570] | 1217 |
|
---|
[710] | 1218 | return true;
|
---|
[547] | 1219 | }
|
---|
| 1220 |
|
---|
| 1221 |
|
---|
[710] | 1222 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1223 | ViewCellContainer &viewCells) const
|
---|
| 1224 | {
|
---|
| 1225 | return 0;
|
---|
| 1226 | };
|
---|
| 1227 |
|
---|
[1021] | 1228 |
|
---|
[697] | 1229 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1230 | const float width) const
|
---|
| 1231 | {
|
---|
[746] | 1232 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1233 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1234 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1235 |
|
---|
| 1236 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1237 | }
|
---|
| 1238 |
|
---|
| 1239 |
|
---|
[904] | 1240 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1241 | PrVs &prvs,
|
---|
| 1242 | const float filterWidth)
|
---|
[697] | 1243 | {
|
---|
[1112] | 1244 |
|
---|
[746] | 1245 |
|
---|
[1112] | 1246 |
|
---|
| 1247 |
|
---|
[746] | 1248 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1249 |
|
---|
[1112] | 1250 | if (mMaxFilterSize < 1) {
|
---|
| 1251 | prvs.mViewCell = currentViewCell;
|
---|
| 1252 | return;
|
---|
| 1253 | }
|
---|
| 1254 |
|
---|
| 1255 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1256 |
|
---|
[746] | 1257 | if (currentViewCell) {
|
---|
[697] | 1258 | ViewCellContainer viewCells;
|
---|
| 1259 | ComputeBoxIntersections(box, viewCells);
|
---|
[1112] | 1260 |
|
---|
| 1261 |
|
---|
[713] | 1262 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1263 | prvs.mViewCell = root;
|
---|
[1112] | 1264 |
|
---|
[746] | 1265 | } else
|
---|
| 1266 | prvs.mViewCell = NULL;
|
---|
| 1267 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1268 | }
|
---|
| 1269 |
|
---|
| 1270 |
|
---|
[581] | 1271 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1272 | {
|
---|
[1002] | 1273 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1274 | }
|
---|
| 1275 |
|
---|
| 1276 |
|
---|
[564] | 1277 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1278 | int minPvs,
|
---|
[562] | 1279 | int maxPvs) const
|
---|
| 1280 | {
|
---|
| 1281 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1282 | }
|
---|
| 1283 |
|
---|
[577] | 1284 |
|
---|
[569] | 1285 | void
|
---|
| 1286 | ViewCellsManager::SetValidity(
|
---|
[570] | 1287 | int minPvsSize,
|
---|
[569] | 1288 | int maxPvsSize) const
|
---|
| 1289 | {
|
---|
[991] | 1290 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1291 |
|
---|
[991] | 1292 |
|
---|
| 1293 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1294 | {
|
---|
| 1295 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1296 | }
|
---|
[569] | 1297 | }
|
---|
[562] | 1298 |
|
---|
[569] | 1299 | void
|
---|
| 1300 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1301 | const float minValid,
|
---|
| 1302 | const float maxValid
|
---|
| 1303 | )
|
---|
| 1304 | {
|
---|
[997] | 1305 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1306 |
|
---|
[1151] | 1307 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1308 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1309 |
|
---|
[1151] | 1310 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1311 | {
|
---|
| 1312 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1313 | }
|
---|
[569] | 1314 | }
|
---|
| 1315 |
|
---|
[1148] | 1316 |
|
---|
[991] | 1317 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1318 | {
|
---|
[991] | 1319 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1320 | int valid = 0;
|
---|
| 1321 |
|
---|
| 1322 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1323 | {
|
---|
| 1324 | if ((*it)->GetValid())
|
---|
| 1325 | ++ valid;
|
---|
| 1326 | }
|
---|
| 1327 |
|
---|
| 1328 | return valid;
|
---|
[569] | 1329 | }
|
---|
| 1330 |
|
---|
[577] | 1331 |
|
---|
| 1332 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1333 | {
|
---|
| 1334 | X3dParser parser;
|
---|
[503] | 1335 |
|
---|
[1004] | 1336 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1337 |
|
---|
[440] | 1338 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1339 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1340 |
|
---|
| 1341 | return success;
|
---|
| 1342 | }
|
---|
| 1343 |
|
---|
[485] | 1344 |
|
---|
[487] | 1345 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1346 | {
|
---|
[542] | 1347 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1348 | return true;
|
---|
| 1349 | }
|
---|
| 1350 |
|
---|
| 1351 |
|
---|
[557] | 1352 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1353 | {
|
---|
[610] | 1354 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1355 | }
|
---|
| 1356 |
|
---|
| 1357 |
|
---|
[490] | 1358 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1359 | {
|
---|
[569] | 1360 | if (!ViewCellsConstructed())
|
---|
[837] | 1361 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1362 | else
|
---|
| 1363 | {
|
---|
| 1364 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1365 | return false;
|
---|
| 1366 |
|
---|
| 1367 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1368 |
|
---|
| 1369 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1370 | return false;
|
---|
[569] | 1371 | }
|
---|
[837] | 1372 |
|
---|
[569] | 1373 | return true;
|
---|
[490] | 1374 | }
|
---|
| 1375 |
|
---|
[501] | 1376 |
|
---|
[563] | 1377 | float
|
---|
| 1378 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[1155] | 1379 | const bool addRays,
|
---|
[574] | 1380 | const bool storeViewCells
|
---|
[563] | 1381 | )
|
---|
[440] | 1382 | {
|
---|
[563] | 1383 | // view cells not yet constructed
|
---|
| 1384 | if (!ViewCellsConstructed())
|
---|
| 1385 | return 0.0f;
|
---|
[564] | 1386 |
|
---|
[563] | 1387 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 1388 |
|
---|
[563] | 1389 | float sum = 0.0f;
|
---|
[1155] | 1390 |
|
---|
[664] | 1391 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1392 | {
|
---|
[1159] | 1393 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
[563] | 1394 | }
|
---|
[664] | 1395 |
|
---|
[563] | 1396 | return sum;
|
---|
[440] | 1397 | }
|
---|
| 1398 |
|
---|
[485] | 1399 |
|
---|
[479] | 1400 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1401 | {
|
---|
[660] | 1402 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1403 |
|
---|
| 1404 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1405 |
|
---|
| 1406 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1407 | {
|
---|
[660] | 1408 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1409 | }
|
---|
[479] | 1410 | }
|
---|
| 1411 |
|
---|
[485] | 1412 |
|
---|
[580] | 1413 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1414 | float &expectedRenderCost,
|
---|
[580] | 1415 | float &deviation,
|
---|
| 1416 | float &variance,
|
---|
| 1417 | int &totalPvs,
|
---|
| 1418 | float &avgRenderCost)
|
---|
[579] | 1419 | {
|
---|
| 1420 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1421 |
|
---|
| 1422 | //-- compute expected value
|
---|
| 1423 | totalRenderCost = 0;
|
---|
[580] | 1424 | totalPvs = 0;
|
---|
[579] | 1425 |
|
---|
| 1426 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1427 | {
|
---|
| 1428 | ViewCell *vc = *it;
|
---|
[1168] | 1429 | totalRenderCost += vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
| 1430 | totalPvs += (int)vc->GetPvs().CountObjectsInPvs();
|
---|
[579] | 1431 | }
|
---|
| 1432 |
|
---|
[580] | 1433 | // normalize with view space box
|
---|
| 1434 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1435 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1436 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1437 |
|
---|
| 1438 |
|
---|
[580] | 1439 | //-- compute standard defiation
|
---|
[579] | 1440 | variance = 0;
|
---|
[580] | 1441 | deviation = 0;
|
---|
[579] | 1442 |
|
---|
| 1443 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1444 | {
|
---|
| 1445 | ViewCell *vc = *it;
|
---|
| 1446 |
|
---|
[1168] | 1447 | float renderCost = vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
[580] | 1448 | float dev;
|
---|
[579] | 1449 |
|
---|
[580] | 1450 | if (1)
|
---|
[1168] | 1451 | dev = fabs(avgRenderCost - (float)vc->GetPvs().CountObjectsInPvs());
|
---|
[580] | 1452 | else
|
---|
| 1453 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1454 |
|
---|
[580] | 1455 | deviation += dev;
|
---|
| 1456 | variance += dev * dev;
|
---|
[579] | 1457 | }
|
---|
[580] | 1458 |
|
---|
[579] | 1459 | variance /= (float)mViewCells.size();
|
---|
[580] | 1460 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1461 | }
|
---|
| 1462 |
|
---|
| 1463 |
|
---|
| 1464 |
|
---|
[440] | 1465 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1466 | {
|
---|
| 1467 | mViewCells.push_back(viewCell);
|
---|
| 1468 | }
|
---|
| 1469 |
|
---|
[485] | 1470 |
|
---|
[478] | 1471 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1472 | {
|
---|
| 1473 | return viewCell->GetArea();
|
---|
| 1474 | }
|
---|
| 1475 |
|
---|
| 1476 |
|
---|
| 1477 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1478 | {
|
---|
| 1479 | return viewCell->GetVolume();
|
---|
| 1480 | }
|
---|
| 1481 |
|
---|
[485] | 1482 |
|
---|
[1002] | 1483 | void ViewCellsManager::DeriveViewCellsFromObjects(const ObjectContainer &objects,
|
---|
| 1484 | ViewCellContainer &viewCells,
|
---|
| 1485 | const int maxViewCells) const
|
---|
[440] | 1486 | {
|
---|
| 1487 | // maximal max viewcells
|
---|
[503] | 1488 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1489 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1490 |
|
---|
| 1491 | for (int i = 0; i < limit; ++ i)
|
---|
| 1492 | {
|
---|
| 1493 | Intersectable *object = objects[i];
|
---|
[503] | 1494 |
|
---|
[440] | 1495 | // extract the mesh instances
|
---|
| 1496 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1497 | {
|
---|
| 1498 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1499 |
|
---|
| 1500 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1501 | viewCells.push_back(viewCell);
|
---|
| 1502 | }
|
---|
[1001] | 1503 | else if (object->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
| 1504 | {
|
---|
| 1505 | TransformedMeshInstance *mi = dynamic_cast<TransformedMeshInstance *>(object);
|
---|
| 1506 |
|
---|
| 1507 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1002] | 1508 |
|
---|
[1001] | 1509 | // transform mesh
|
---|
[1002] | 1510 | mi->GetTransformedMesh(*mesh);
|
---|
[1001] | 1511 |
|
---|
| 1512 | // create bb + kd tree
|
---|
| 1513 | mesh->Preprocess();
|
---|
| 1514 |
|
---|
| 1515 | ViewCell *viewCell = GenerateViewCell(mi->GetMesh());
|
---|
| 1516 | viewCells.push_back(viewCell);
|
---|
| 1517 |
|
---|
| 1518 | break;
|
---|
| 1519 | }
|
---|
[440] | 1520 | }
|
---|
| 1521 | }
|
---|
| 1522 |
|
---|
[485] | 1523 |
|
---|
[503] | 1524 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1525 | const float height) const
|
---|
| 1526 | {
|
---|
| 1527 | // one mesh per view cell
|
---|
[1001] | 1528 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1529 |
|
---|
[440] | 1530 | //-- construct prism
|
---|
| 1531 |
|
---|
[503] | 1532 | // bottom
|
---|
[440] | 1533 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1534 | // top
|
---|
| 1535 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1536 | // sides
|
---|
| 1537 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1538 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1539 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1540 |
|
---|
| 1541 | //--- extrude new vertices for top of prism
|
---|
| 1542 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1543 |
|
---|
[503] | 1544 | Triangle3 topTri;
|
---|
[440] | 1545 |
|
---|
| 1546 | // add base vertices and calculate top vertices
|
---|
| 1547 | for (int i = 0; i < 3; ++ i)
|
---|
| 1548 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1549 |
|
---|
| 1550 | // add top vertices
|
---|
[440] | 1551 | for (int i = 0; i < 3; ++ i)
|
---|
| 1552 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1553 |
|
---|
[440] | 1554 | mesh->Preprocess();
|
---|
| 1555 |
|
---|
| 1556 | return GenerateViewCell(mesh);
|
---|
| 1557 | }
|
---|
| 1558 |
|
---|
[485] | 1559 |
|
---|
[551] | 1560 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1561 | {
|
---|
| 1562 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1563 |
|
---|
| 1564 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1565 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1566 | {
|
---|
| 1567 | Finalize(*it, createMesh);
|
---|
| 1568 | }
|
---|
[555] | 1569 |
|
---|
| 1570 | mTotalAreaValid = false;
|
---|
[551] | 1571 | }
|
---|
| 1572 |
|
---|
| 1573 |
|
---|
| 1574 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1575 | {
|
---|
| 1576 | // implemented in subclasses
|
---|
| 1577 | }
|
---|
| 1578 |
|
---|
[1001] | 1579 |
|
---|
[1168] | 1580 | /** fast way of merging 2 view cells.
|
---|
| 1581 | */
|
---|
[582] | 1582 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1583 | {
|
---|
[580] | 1584 | // generate parent view cell
|
---|
[752] | 1585 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1586 |
|
---|
[752] | 1587 | vc->GetPvs().Clear();
|
---|
[610] | 1588 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1589 |
|
---|
| 1590 | // merge pvs of right cell
|
---|
[610] | 1591 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1592 |
|
---|
[462] | 1593 | //-- merge ray sets
|
---|
[564] | 1594 | if (0)
|
---|
| 1595 | {
|
---|
[582] | 1596 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1597 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1598 |
|
---|
[582] | 1599 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1600 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1601 | vc->mPiercingRays.begin());
|
---|
| 1602 | }
|
---|
[440] | 1603 |
|
---|
[710] | 1604 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1605 | vc->mChildren.push_back(left);
|
---|
| 1606 | vc->mChildren.push_back(right);
|
---|
| 1607 |
|
---|
[752] | 1608 | // update pvs size
|
---|
[1168] | 1609 | UpdateScalarPvsSize(vc, vc->GetPvs().CountObjectsInPvs(), vc->GetPvs().GetSize());
|
---|
[752] | 1610 |
|
---|
[440] | 1611 | return vc;
|
---|
| 1612 | }
|
---|
| 1613 |
|
---|
[485] | 1614 |
|
---|
[582] | 1615 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1616 | {
|
---|
[752] | 1617 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1618 |
|
---|
| 1619 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1620 |
|
---|
| 1621 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1622 | {
|
---|
| 1623 | // merge pvs
|
---|
[610] | 1624 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1625 | vc->mChildren.push_back(*it);
|
---|
[582] | 1626 | }
|
---|
| 1627 |
|
---|
| 1628 | return vc;
|
---|
| 1629 | }
|
---|
| 1630 |
|
---|
| 1631 |
|
---|
[480] | 1632 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1633 | {
|
---|
| 1634 | mRenderer = renderer;
|
---|
| 1635 | }
|
---|
[441] | 1636 |
|
---|
[485] | 1637 |
|
---|
[580] | 1638 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1639 | {
|
---|
[580] | 1640 | return mViewCellsTree;
|
---|
[440] | 1641 | }
|
---|
| 1642 |
|
---|
| 1643 |
|
---|
| 1644 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1645 | {
|
---|
[444] | 1646 | mVisualizationSamples = visSamples;
|
---|
[440] | 1647 | }
|
---|
| 1648 |
|
---|
[485] | 1649 |
|
---|
[440] | 1650 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1651 | {
|
---|
| 1652 | mConstructionSamples = constructionSamples;
|
---|
| 1653 | }
|
---|
| 1654 |
|
---|
[485] | 1655 |
|
---|
[574] | 1656 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1657 | {
|
---|
| 1658 | mInitialSamples = initialSamples;
|
---|
| 1659 | }
|
---|
| 1660 |
|
---|
| 1661 |
|
---|
[440] | 1662 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1663 | {
|
---|
| 1664 | mPostProcessSamples = postProcessSamples;
|
---|
| 1665 | }
|
---|
| 1666 |
|
---|
[485] | 1667 |
|
---|
[440] | 1668 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1669 | {
|
---|
| 1670 | return mVisualizationSamples;
|
---|
| 1671 | }
|
---|
| 1672 |
|
---|
[485] | 1673 |
|
---|
[440] | 1674 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1675 | {
|
---|
| 1676 | return mConstructionSamples;
|
---|
| 1677 | }
|
---|
| 1678 |
|
---|
[485] | 1679 |
|
---|
[440] | 1680 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1681 | {
|
---|
| 1682 | return mPostProcessSamples;
|
---|
| 1683 | }
|
---|
| 1684 |
|
---|
[485] | 1685 |
|
---|
[719] | 1686 | void ViewCellsManager::UpdatePvs()
|
---|
| 1687 | {
|
---|
[720] | 1688 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1689 | return;
|
---|
| 1690 |
|
---|
| 1691 | mViewCellPvsIsUpdated = true;
|
---|
| 1692 |
|
---|
| 1693 | ViewCellContainer leaves;
|
---|
| 1694 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1695 |
|
---|
| 1696 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1697 |
|
---|
| 1698 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1699 | {
|
---|
| 1700 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1701 | }
|
---|
| 1702 | }
|
---|
| 1703 |
|
---|
| 1704 |
|
---|
[485] | 1705 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1706 | {
|
---|
[1199] | 1707 | // update pvs of view cells tree if necessary
|
---|
| 1708 | UpdatePvs();
|
---|
| 1709 |
|
---|
| 1710 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1711 |
|
---|
| 1712 | stat.viewcells = 0;
|
---|
| 1713 | stat.minPvs = 100000000;
|
---|
| 1714 | stat.maxPvs = 0;
|
---|
| 1715 | stat.avgPvs = 0.0f;
|
---|
| 1716 |
|
---|
| 1717 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1718 | {
|
---|
[1199] | 1719 | ViewCell *viewcell = *it;
|
---|
[1121] | 1720 |
|
---|
[1199] | 1721 | // bool mCountKdPvs = false;
|
---|
| 1722 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
[1121] | 1723 |
|
---|
| 1724 |
|
---|
[1199] | 1725 | if (pvsSize < stat.minPvs)
|
---|
| 1726 | stat.minPvs = pvsSize;
|
---|
| 1727 | if (pvsSize > stat.maxPvs)
|
---|
| 1728 | stat.maxPvs = pvsSize;
|
---|
| 1729 |
|
---|
| 1730 | stat.avgPvs += pvsSize;
|
---|
| 1731 |
|
---|
| 1732 | ++ stat.viewcells;
|
---|
[719] | 1733 | }
|
---|
[1199] | 1734 |
|
---|
| 1735 | if (stat.viewcells)
|
---|
| 1736 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1737 | }
|
---|
| 1738 |
|
---|
[485] | 1739 |
|
---|
[480] | 1740 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1741 | {
|
---|
| 1742 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1743 | PvsStatistics pvsStat;
|
---|
| 1744 | GetPvsStatistics(pvsStat);
|
---|
| 1745 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1746 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1747 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1748 | }
|
---|
| 1749 |
|
---|
[485] | 1750 |
|
---|
[532] | 1751 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1752 | {
|
---|
| 1753 | return 0;
|
---|
| 1754 | }
|
---|
| 1755 |
|
---|
[547] | 1756 |
|
---|
[468] | 1757 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1758 | {
|
---|
| 1759 | return mViewCells;
|
---|
| 1760 | }
|
---|
| 1761 |
|
---|
[485] | 1762 |
|
---|
[487] | 1763 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1764 | {
|
---|
[542] | 1765 | mViewSpaceBox = box;
|
---|
[1074] | 1766 |
|
---|
[1027] | 1767 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1768 | CreateClipPlane();
|
---|
[1027] | 1769 | // the total area of the view space has changed
|
---|
[577] | 1770 | mTotalAreaValid = false;
|
---|
[487] | 1771 | }
|
---|
| 1772 |
|
---|
| 1773 |
|
---|
[660] | 1774 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1775 | {
|
---|
| 1776 | int axis = 0;
|
---|
[667] | 1777 | float pos;
|
---|
[591] | 1778 |
|
---|
[1004] | 1779 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1780 |
|
---|
[667] | 1781 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1782 |
|
---|
[660] | 1783 | if (mUseClipPlaneForViz)
|
---|
[1004] | 1784 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1785 |
|
---|
[1047] | 1786 | mClipPlane = AxisAlignedPlane(axis, point[axis]);
|
---|
[591] | 1787 | }
|
---|
| 1788 |
|
---|
| 1789 |
|
---|
[519] | 1790 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1791 | {
|
---|
[542] | 1792 | return mViewSpaceBox;
|
---|
[519] | 1793 | }
|
---|
| 1794 |
|
---|
| 1795 |
|
---|
[480] | 1796 | void ViewCellsManager::ResetViewCells()
|
---|
| 1797 | {
|
---|
[720] | 1798 | // recollect view cells
|
---|
[480] | 1799 | mViewCells.clear();
|
---|
| 1800 | CollectViewCells();
|
---|
[590] | 1801 |
|
---|
[720] | 1802 |
|
---|
| 1803 | // stats are computed once more
|
---|
[660] | 1804 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1805 | EvaluateViewCellsStats();
|
---|
[590] | 1806 |
|
---|
[520] | 1807 | // has to be recomputed
|
---|
[480] | 1808 | mTotalAreaValid = false;
|
---|
| 1809 | }
|
---|
| 1810 |
|
---|
[485] | 1811 |
|
---|
[547] | 1812 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1813 | {
|
---|
| 1814 | return mMaxPvsSize;
|
---|
| 1815 | }
|
---|
| 1816 |
|
---|
[590] | 1817 |
|
---|
[563] | 1818 | void
|
---|
| 1819 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1820 | {
|
---|
| 1821 | if (!ViewCellsConstructed())
|
---|
| 1822 | return;
|
---|
[564] | 1823 |
|
---|
[563] | 1824 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1825 |
|
---|
[563] | 1826 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1827 | AddSampleContributions(*(*it));
|
---|
| 1828 | }
|
---|
| 1829 | }
|
---|
[547] | 1830 |
|
---|
[581] | 1831 |
|
---|
[562] | 1832 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1833 | {
|
---|
| 1834 | return mMinPvsSize;
|
---|
| 1835 | }
|
---|
| 1836 |
|
---|
| 1837 |
|
---|
| 1838 |
|
---|
[561] | 1839 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1840 | {
|
---|
| 1841 | return mMaxPvsRatio;
|
---|
| 1842 | }
|
---|
| 1843 |
|
---|
| 1844 |
|
---|
[563] | 1845 | void
|
---|
| 1846 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1847 | {
|
---|
[563] | 1848 | // assumes viewcells have been stored...
|
---|
| 1849 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1850 | ViewCellContainer::const_iterator it;
|
---|
| 1851 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1852 | ViewCell *viewcell = *it;
|
---|
[569] | 1853 | if (viewcell->GetValid()) {
|
---|
| 1854 | // if ray not outside of view space
|
---|
| 1855 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1856 | }
|
---|
[563] | 1857 | }
|
---|
| 1858 | }
|
---|
[503] | 1859 |
|
---|
[574] | 1860 |
|
---|
[1159] | 1861 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 1862 | const bool addRays,
|
---|
| 1863 | const bool storeViewCells)
|
---|
[563] | 1864 | {
|
---|
[570] | 1865 | ViewCellContainer viewcells;
|
---|
[564] | 1866 |
|
---|
[570] | 1867 | ray.mPvsContribution = 0;
|
---|
| 1868 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1869 |
|
---|
[570] | 1870 | static Ray hray;
|
---|
[564] | 1871 | hray.Init(ray);
|
---|
| 1872 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1873 | //Ray hray(ray);
|
---|
| 1874 |
|
---|
| 1875 | float tmin = 0, tmax = 1.0;
|
---|
| 1876 |
|
---|
| 1877 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1878 | return 0;
|
---|
[564] | 1879 |
|
---|
| 1880 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1881 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1882 |
|
---|
[1006] | 1883 | // traverse the view space subdivision
|
---|
[564] | 1884 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1885 |
|
---|
[574] | 1886 | if (storeViewCells)
|
---|
[1155] | 1887 | { // copy viewcells memory efficiently
|
---|
[570] | 1888 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1889 | ray.mViewCells = viewcells;
|
---|
| 1890 | }
|
---|
[564] | 1891 |
|
---|
[570] | 1892 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1893 |
|
---|
[664] | 1894 | for (; it != viewcells.end(); ++ it)
|
---|
| 1895 | {
|
---|
| 1896 | ViewCell *viewcell = *it;
|
---|
[694] | 1897 |
|
---|
[708] | 1898 | if (viewcell->GetValid())
|
---|
[664] | 1899 | {
|
---|
| 1900 | // if ray not outside of view space
|
---|
| 1901 | float contribution;
|
---|
[1112] | 1902 | if (ray.mTerminationObject) {
|
---|
| 1903 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 1904 | ray.mPdf,
|
---|
| 1905 | contribution))
|
---|
[1184] | 1906 | {
|
---|
[664] | 1907 | ++ ray.mPvsContribution;
|
---|
[1184] | 1908 | ray.mRelativePvsContribution += contribution;
|
---|
| 1909 | }
|
---|
[664] | 1910 | }
|
---|
[840] | 1911 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1912 | // made in one direction!!!
|
---|
| 1913 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1166] | 1914 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 1915 | if (ray.mOriginObject &&
|
---|
| 1916 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1917 | ray.mPdf,
|
---|
| 1918 | contribution))
|
---|
| 1919 | {
|
---|
| 1920 | ++ ray.mPvsContribution;
|
---|
| 1921 | ray.mRelativePvsContribution += contribution;
|
---|
| 1922 | }
|
---|
[718] | 1923 | #endif
|
---|
[664] | 1924 | }
|
---|
[569] | 1925 | }
|
---|
[564] | 1926 |
|
---|
[1155] | 1927 | // if addrays is true, sampled entities are stored in the pvs
|
---|
[664] | 1928 | if (addRays)
|
---|
| 1929 | {
|
---|
| 1930 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1931 | {
|
---|
| 1932 | ViewCell *viewcell = *it;
|
---|
| 1933 |
|
---|
[706] | 1934 | if (viewcell->GetValid())
|
---|
[664] | 1935 | {
|
---|
| 1936 | // if ray not outside of view space
|
---|
[718] | 1937 |
|
---|
[1159] | 1938 | // add new object to the pvs
|
---|
[1155] | 1939 | if (ray.mTerminationObject)
|
---|
| 1940 | {
|
---|
[1159] | 1941 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1942 | }
|
---|
[1166] | 1943 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 1944 | if (ray.mOriginObject)
|
---|
[1159] | 1945 | {
|
---|
[666] | 1946 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 1947 | }
|
---|
[718] | 1948 | #endif
|
---|
[664] | 1949 | }
|
---|
| 1950 | }
|
---|
[563] | 1951 | }
|
---|
[570] | 1952 |
|
---|
| 1953 | return ray.mRelativePvsContribution;
|
---|
[468] | 1954 | }
|
---|
| 1955 |
|
---|
| 1956 |
|
---|
[469] | 1957 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1958 | const int maxSize,
|
---|
[503] | 1959 | VssRayContainer &usedRays,
|
---|
[485] | 1960 | VssRayContainer *savedRays) const
|
---|
[469] | 1961 | {
|
---|
[485] | 1962 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1963 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1964 |
|
---|
[485] | 1965 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1966 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1967 | {
|
---|
[473] | 1968 | if (Random(1.0f) < prop)
|
---|
[485] | 1969 | usedRays.push_back(*it);
|
---|
| 1970 | else if (savedRays)
|
---|
| 1971 | savedRays->push_back(*it);
|
---|
[469] | 1972 | }
|
---|
| 1973 | }
|
---|
| 1974 |
|
---|
[477] | 1975 |
|
---|
[728] | 1976 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1977 | {
|
---|
[1145] | 1978 | return (float)mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1979 | }
|
---|
| 1980 |
|
---|
| 1981 |
|
---|
[477] | 1982 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1983 | {
|
---|
| 1984 | // if already computed
|
---|
| 1985 | if (mTotalAreaValid)
|
---|
[728] | 1986 | {
|
---|
[470] | 1987 | return mTotalArea;
|
---|
[728] | 1988 | }
|
---|
[470] | 1989 |
|
---|
| 1990 | mTotalArea = 0;
|
---|
| 1991 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1992 |
|
---|
| 1993 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1994 | {
|
---|
| 1995 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1996 | mTotalArea += GetArea(*it);
|
---|
[480] | 1997 | }
|
---|
| 1998 |
|
---|
[470] | 1999 | mTotalAreaValid = true;
|
---|
| 2000 |
|
---|
| 2001 | return mTotalArea;
|
---|
| 2002 | }
|
---|
| 2003 |
|
---|
[482] | 2004 |
|
---|
[475] | 2005 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2006 | {
|
---|
[660] | 2007 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2008 | }
|
---|
| 2009 |
|
---|
[477] | 2010 |
|
---|
[508] | 2011 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2012 | {
|
---|
[651] | 2013 | if (ViewCellsTreeConstructed())
|
---|
| 2014 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 2015 | else
|
---|
| 2016 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 2017 | mViewCells[i]->SetId(i);
|
---|
[508] | 2018 | }
|
---|
| 2019 |
|
---|
| 2020 |
|
---|
| 2021 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 2022 | {
|
---|
[482] | 2023 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2024 |
|
---|
| 2025 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2026 | {
|
---|
[574] | 2027 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2028 | {
|
---|
[801] | 2029 | ExportColor(exporter, *it);
|
---|
| 2030 |
|
---|
[591] | 2031 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 2032 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 2033 | }
|
---|
[482] | 2034 | }
|
---|
| 2035 | }
|
---|
| 2036 |
|
---|
| 2037 |
|
---|
[517] | 2038 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2039 | {
|
---|
| 2040 | // convert to meshes
|
---|
| 2041 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2042 |
|
---|
| 2043 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2044 | {
|
---|
[517] | 2045 | if (!(*it)->GetMesh())
|
---|
[1001] | 2046 | {
|
---|
[517] | 2047 | CreateMesh(*it);
|
---|
[1001] | 2048 | }
|
---|
[503] | 2049 | }
|
---|
| 2050 | }
|
---|
| 2051 |
|
---|
[508] | 2052 |
|
---|
[944] | 2053 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2054 | const bool exportPvs,
|
---|
| 2055 | const ObjectContainer &objects)
|
---|
[564] | 2056 | {
|
---|
[508] | 2057 | return false;
|
---|
| 2058 | }
|
---|
| 2059 |
|
---|
| 2060 |
|
---|
[610] | 2061 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2062 | {
|
---|
[610] | 2063 | mNumActiveViewCells = n;
|
---|
| 2064 | mViewCells.clear();
|
---|
| 2065 | CollectViewCells();
|
---|
| 2066 | }
|
---|
[508] | 2067 |
|
---|
| 2068 |
|
---|
[660] | 2069 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2070 | {
|
---|
[882] | 2071 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2072 | // active view cells
|
---|
[660] | 2073 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2074 |
|
---|
[660] | 2075 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2076 | {
|
---|
[881] | 2077 | ViewCellContainer leaves;
|
---|
| 2078 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2079 |
|
---|
| 2080 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2081 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2082 | {
|
---|
| 2083 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2084 | }
|
---|
[660] | 2085 | }
|
---|
| 2086 | }
|
---|
[508] | 2087 |
|
---|
[840] | 2088 |
|
---|
| 2089 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2090 | {
|
---|
| 2091 | return mMaxFilterSize;
|
---|
| 2092 | }
|
---|
| 2093 |
|
---|
[1001] | 2094 |
|
---|
[840] | 2095 | static const bool USE_ASCII = true;
|
---|
| 2096 |
|
---|
[1001] | 2097 |
|
---|
[840] | 2098 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2099 | const ObjectContainer &objects) const
|
---|
| 2100 | {
|
---|
| 2101 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2102 |
|
---|
| 2103 | if (USE_ASCII)
|
---|
| 2104 | {
|
---|
| 2105 | ofstream boxesOut(filename.c_str());
|
---|
| 2106 | if (!boxesOut.is_open())
|
---|
| 2107 | return false;
|
---|
| 2108 |
|
---|
| 2109 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2110 | {
|
---|
| 2111 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2112 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2113 |
|
---|
| 2114 | boxesOut << mi->GetId() << " "
|
---|
| 2115 | << box.Min().x << " "
|
---|
| 2116 | << box.Min().y << " "
|
---|
| 2117 | << box.Min().z << " "
|
---|
| 2118 | << box.Max().x << " "
|
---|
| 2119 | << box.Max().y << " "
|
---|
| 2120 | << box.Max().z << endl;
|
---|
| 2121 | }
|
---|
| 2122 |
|
---|
| 2123 | boxesOut.close();
|
---|
| 2124 | }
|
---|
| 2125 | else
|
---|
| 2126 | {
|
---|
| 2127 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2128 |
|
---|
| 2129 | if (!boxesOut.is_open())
|
---|
| 2130 | return false;
|
---|
| 2131 |
|
---|
| 2132 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2133 | {
|
---|
| 2134 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2135 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2136 | Vector3 bmin = box.Min();
|
---|
| 2137 | Vector3 bmax = box.Max();
|
---|
[850] | 2138 | int id = mi->GetId();
|
---|
[840] | 2139 |
|
---|
[850] | 2140 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2141 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2142 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2143 | }
|
---|
| 2144 |
|
---|
| 2145 | boxesOut.close();
|
---|
| 2146 | }
|
---|
| 2147 |
|
---|
| 2148 | return true;
|
---|
| 2149 | }
|
---|
| 2150 |
|
---|
| 2151 |
|
---|
[850] | 2152 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2153 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2154 | {
|
---|
[850] | 2155 | Vector3 bmin, bmax;
|
---|
| 2156 | int id;
|
---|
[840] | 2157 |
|
---|
[850] | 2158 | if (USE_ASCII)
|
---|
[840] | 2159 | {
|
---|
[850] | 2160 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2161 |
|
---|
[850] | 2162 | if (!boxesIn.is_open())
|
---|
[840] | 2163 | {
|
---|
[850] | 2164 | cout << "failed to open file " << filename << endl;
|
---|
| 2165 | return false;
|
---|
[840] | 2166 | }
|
---|
[850] | 2167 |
|
---|
| 2168 | string buf;
|
---|
| 2169 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2170 | {
|
---|
[850] | 2171 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2172 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2173 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2174 |
|
---|
| 2175 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2176 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2177 | // HACK: set bounding box to new box
|
---|
| 2178 | //mi->mBox = box;
|
---|
| 2179 |
|
---|
| 2180 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2181 | }
|
---|
| 2182 |
|
---|
[850] | 2183 | boxesIn.close();
|
---|
[840] | 2184 | }
|
---|
[850] | 2185 | else
|
---|
[840] | 2186 | {
|
---|
[850] | 2187 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2188 |
|
---|
[850] | 2189 | if (!boxesIn.is_open())
|
---|
| 2190 | return false;
|
---|
| 2191 |
|
---|
| 2192 | while (1)
|
---|
[840] | 2193 | {
|
---|
[850] | 2194 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2195 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2196 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2197 |
|
---|
| 2198 | if (boxesIn.eof())
|
---|
| 2199 | break;
|
---|
| 2200 |
|
---|
| 2201 |
|
---|
| 2202 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2203 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2204 |
|
---|
| 2205 | // HACK: set bounding box to new box
|
---|
| 2206 | //mi->mBox = box;
|
---|
| 2207 | //boxes.push_back(mi);
|
---|
| 2208 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2209 | }
|
---|
| 2210 |
|
---|
[850] | 2211 | boxesIn.close();
|
---|
[840] | 2212 | }
|
---|
| 2213 |
|
---|
| 2214 | return true;
|
---|
[850] | 2215 | }
|
---|
[840] | 2216 |
|
---|
[931] | 2217 |
|
---|
| 2218 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2219 | {
|
---|
| 2220 | return mFilterWidth;
|
---|
| 2221 | }
|
---|
| 2222 |
|
---|
| 2223 |
|
---|
| 2224 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2225 | {
|
---|
| 2226 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2227 | }
|
---|
| 2228 |
|
---|
| 2229 |
|
---|
[1168] | 2230 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
| 2231 | const int pvsSize,
|
---|
| 2232 | const int entriesInPvs) const
|
---|
[1002] | 2233 | {
|
---|
| 2234 | vc->mPvsSize = pvsSize;
|
---|
[1160] | 2235 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2236 |
|
---|
[1002] | 2237 | vc->mPvsSizeValid = true;
|
---|
| 2238 | }
|
---|
| 2239 |
|
---|
| 2240 |
|
---|
[1021] | 2241 | void
|
---|
| 2242 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2243 | KdTree *kdTree,
|
---|
| 2244 | const float viewSpaceFilterSize,
|
---|
| 2245 | const float spatialFilterSize,
|
---|
| 2246 | ObjectPvs &pvs
|
---|
| 2247 | )
|
---|
| 2248 | {
|
---|
| 2249 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2250 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2251 | // in the pvs
|
---|
| 2252 |
|
---|
| 2253 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2254 | // and compute the pvs union
|
---|
| 2255 |
|
---|
| 2256 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2257 | // Vector3 center = m->mBox.Center();
|
---|
| 2258 |
|
---|
| 2259 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2260 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 2261 | if (!ViewCellsConstructed())
|
---|
| 2262 | return;
|
---|
| 2263 |
|
---|
| 2264 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
| 2265 |
|
---|
| 2266 | bool usePrVS = false;
|
---|
| 2267 |
|
---|
| 2268 | if (!usePrVS) {
|
---|
| 2269 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2270 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 2271 |
|
---|
| 2272 | ViewCellContainer viewCells;
|
---|
| 2273 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2274 |
|
---|
| 2275 | // cout<<"box="<<box<<endl;
|
---|
| 2276 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2277 |
|
---|
| 2278 | int i;
|
---|
| 2279 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2280 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2281 | pvs.Merge((*it)->GetPvs());
|
---|
| 2282 | }
|
---|
| 2283 | } else {
|
---|
| 2284 | PrVs prvs;
|
---|
| 2285 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2286 |
|
---|
| 2287 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2288 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2289 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2290 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2291 | }
|
---|
| 2292 | } else
|
---|
| 2293 | pvs = viewCell->GetPvs();
|
---|
| 2294 |
|
---|
| 2295 | if (spatialFilterSize >=0.0f)
|
---|
| 2296 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2297 |
|
---|
| 2298 | }
|
---|
| 2299 |
|
---|
| 2300 |
|
---|
| 2301 |
|
---|
| 2302 | void
|
---|
| 2303 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2304 | const float relViewSpaceFilterSize,
|
---|
| 2305 | const float relSpatialFilterSize
|
---|
| 2306 | )
|
---|
| 2307 | {
|
---|
| 2308 |
|
---|
| 2309 | if (!ViewCellsConstructed())
|
---|
| 2310 | return;
|
---|
| 2311 |
|
---|
| 2312 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2313 |
|
---|
| 2314 | ObjectPvs *newPvs;
|
---|
| 2315 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 2316 |
|
---|
| 2317 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2318 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 2319 |
|
---|
| 2320 | int i;
|
---|
| 2321 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2322 | ApplyFilter(*it,
|
---|
| 2323 | kdTree,
|
---|
| 2324 | viewSpaceFilterSize,
|
---|
| 2325 | spatialFilterSize,
|
---|
| 2326 | newPvs[i]
|
---|
| 2327 | );
|
---|
| 2328 | }
|
---|
| 2329 |
|
---|
| 2330 | // now replace all pvss
|
---|
| 2331 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2332 |
|
---|
| 2333 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2334 | pvs.Clear();
|
---|
| 2335 | pvs = newPvs[i];
|
---|
| 2336 | newPvs[i].Clear();
|
---|
| 2337 | }
|
---|
| 2338 |
|
---|
| 2339 | delete [] newPvs;
|
---|
| 2340 | }
|
---|
| 2341 |
|
---|
| 2342 |
|
---|
| 2343 |
|
---|
| 2344 |
|
---|
| 2345 | void
|
---|
| 2346 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2347 | KdTree *kdTree,
|
---|
| 2348 | const float spatialFilterSize,
|
---|
| 2349 | ObjectPvs &pvs
|
---|
| 2350 | )
|
---|
| 2351 | {
|
---|
| 2352 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2353 | // extended boxes of visible objects
|
---|
| 2354 |
|
---|
| 2355 | Intersectable::NewMail();
|
---|
| 2356 |
|
---|
[1189] | 2357 | ObjectPvsMap::const_iterator oi;
|
---|
[1021] | 2358 |
|
---|
[1189] | 2359 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi)
|
---|
| 2360 | {
|
---|
| 2361 | Intersectable *object = (*oi).first;
|
---|
| 2362 | object->Mail();
|
---|
[1021] | 2363 | }
|
---|
| 2364 |
|
---|
| 2365 | ObjectPvs nPvs;
|
---|
[1189] | 2366 | int nPvsSize = 0;
|
---|
[1021] | 2367 | // now go through the pvs again
|
---|
| 2368 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2369 | Intersectable *object = (*oi).first;
|
---|
| 2370 |
|
---|
| 2371 | // Vector3 center = object->GetBox().Center();
|
---|
| 2372 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2373 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2374 |
|
---|
| 2375 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2376 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2377 |
|
---|
| 2378 | ObjectContainer objects;
|
---|
| 2379 |
|
---|
| 2380 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2381 | kdTree->CollectObjects(box,
|
---|
| 2382 | objects);
|
---|
| 2383 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2384 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2385 | for (; noi != objects.end(); ++noi) {
|
---|
| 2386 | Intersectable *o = *noi;
|
---|
| 2387 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2388 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2389 | nPvsSize++;
|
---|
| 2390 | }
|
---|
| 2391 | }
|
---|
| 2392 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2393 | pvs.Merge(nPvs);
|
---|
| 2394 | }
|
---|
| 2395 |
|
---|
| 2396 |
|
---|
| 2397 | void ViewCellsManager::ExportColor(Exporter *exporter, ViewCell *vc) const
|
---|
| 2398 | {
|
---|
| 2399 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2400 |
|
---|
| 2401 | float importance = 0;
|
---|
| 2402 | static Material m;
|
---|
| 2403 |
|
---|
| 2404 | switch (mColorCode)
|
---|
| 2405 | {
|
---|
| 2406 | case 0: // Random
|
---|
| 2407 | {
|
---|
| 2408 | if (vcValid)
|
---|
| 2409 | {
|
---|
| 2410 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2411 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2412 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2413 | }
|
---|
| 2414 | else
|
---|
| 2415 | {
|
---|
| 2416 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2417 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2418 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2419 | }
|
---|
| 2420 |
|
---|
| 2421 | exporter->SetForcedMaterial(m);
|
---|
| 2422 | return;
|
---|
| 2423 | }
|
---|
| 2424 |
|
---|
| 2425 | case 1: // pvs
|
---|
| 2426 | {
|
---|
| 2427 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2428 | {
|
---|
| 2429 | importance =
|
---|
[1142] | 2430 | (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
[1121] | 2431 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2432 | }
|
---|
[1021] | 2433 | }
|
---|
| 2434 | break;
|
---|
| 2435 | case 2: // merges
|
---|
| 2436 | {
|
---|
| 2437 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2438 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2439 | }
|
---|
| 2440 | break;
|
---|
| 2441 | #if 0
|
---|
| 2442 | case 3: // merge tree differene
|
---|
| 2443 | {
|
---|
| 2444 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2445 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2446 |
|
---|
| 2447 | }
|
---|
| 2448 | break;
|
---|
| 2449 | #endif
|
---|
| 2450 | default:
|
---|
| 2451 | break;
|
---|
| 2452 | }
|
---|
| 2453 |
|
---|
| 2454 | // special color code for invalid view cells
|
---|
| 2455 | m.mDiffuseColor.r = importance;
|
---|
| 2456 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2457 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2458 |
|
---|
| 2459 | //Debug << "importance: " << importance << endl;
|
---|
| 2460 | exporter->SetForcedMaterial(m);
|
---|
| 2461 | }
|
---|
| 2462 |
|
---|
| 2463 |
|
---|
[1022] | 2464 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2465 | vector<MergeCandidate> &candidates)
|
---|
| 2466 | {
|
---|
| 2467 | // implemented in subclasses
|
---|
| 2468 | }
|
---|
| 2469 |
|
---|
[1047] | 2470 |
|
---|
[1168] | 2471 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2472 | {
|
---|
| 2473 | // terminate traversal
|
---|
| 2474 | if (root->IsLeaf())
|
---|
| 2475 | {
|
---|
| 2476 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2477 | pvs = root->GetPvs();
|
---|
| 2478 | UpdateScalarPvsSize(root, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2479 |
|
---|
| 2480 | return;
|
---|
| 2481 | }
|
---|
| 2482 |
|
---|
| 2483 | //-- interior node => propagate pvs up
|
---|
| 2484 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 2485 | interior->GetPvs().Clear();
|
---|
| 2486 | pvs.Clear();
|
---|
| 2487 | vector<ObjectPvs> pvsList;
|
---|
| 2488 |
|
---|
| 2489 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 2490 |
|
---|
| 2491 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 2492 | {
|
---|
| 2493 | ObjectPvs objPvs;
|
---|
| 2494 |
|
---|
| 2495 | //-- recursivly compute child pvss
|
---|
| 2496 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 2497 |
|
---|
| 2498 | // store pvs in vector
|
---|
| 2499 | pvsList.push_back(objPvs);
|
---|
| 2500 | }
|
---|
| 2501 |
|
---|
| 2502 | #if 1
|
---|
| 2503 | Intersectable::NewMail();
|
---|
| 2504 |
|
---|
| 2505 | //-- faster way of computing pvs:
|
---|
| 2506 | // construct merged pvs by adding
|
---|
| 2507 | // and only those of the next pvs which were not mailed.
|
---|
| 2508 | // note: sumpdf is not correct!!
|
---|
| 2509 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2510 |
|
---|
| 2511 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2512 | {
|
---|
| 2513 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2514 |
|
---|
| 2515 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2516 | {
|
---|
| 2517 | Intersectable *intersect = (*pit).first;
|
---|
| 2518 |
|
---|
| 2519 | if (!intersect->Mailed())
|
---|
| 2520 | {
|
---|
| 2521 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2522 | intersect->Mail();
|
---|
| 2523 | }
|
---|
| 2524 | }
|
---|
| 2525 | }
|
---|
| 2526 |
|
---|
| 2527 | // store pvs in this node
|
---|
| 2528 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2529 | {
|
---|
| 2530 | interior->SetPvs(pvs);
|
---|
| 2531 | }
|
---|
| 2532 |
|
---|
| 2533 | // set new pvs size
|
---|
| 2534 | UpdateScalarPvsSize(interior, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2535 |
|
---|
| 2536 |
|
---|
[1178] | 2537 | #else // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2538 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2539 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2540 | #endif
|
---|
| 2541 | }
|
---|
| 2542 |
|
---|
[1174] | 2543 |
|
---|
| 2544 |
|
---|
[1145] | 2545 | /*******************************************************************/
|
---|
| 2546 | /* BspViewCellsManager implementation */
|
---|
| 2547 | /*******************************************************************/
|
---|
[440] | 2548 |
|
---|
[482] | 2549 |
|
---|
[1004] | 2550 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 2551 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 2552 | {
|
---|
[1004] | 2553 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2554 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 2555 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 2556 | }
|
---|
| 2557 |
|
---|
[462] | 2558 |
|
---|
[440] | 2559 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2560 | {
|
---|
| 2561 | return mBspTree->GetRoot() != NULL;
|
---|
| 2562 | }
|
---|
| 2563 |
|
---|
[480] | 2564 |
|
---|
[440] | 2565 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2566 | {
|
---|
| 2567 | return new BspViewCell(mesh);
|
---|
| 2568 | }
|
---|
| 2569 |
|
---|
[480] | 2570 |
|
---|
[574] | 2571 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2572 | const VssRayContainer &rays)
|
---|
[440] | 2573 | {
|
---|
[441] | 2574 | // if view cells were already constructed
|
---|
[440] | 2575 | if (ViewCellsConstructed())
|
---|
| 2576 | return 0;
|
---|
| 2577 |
|
---|
| 2578 | int sampleContributions = 0;
|
---|
[503] | 2579 |
|
---|
[469] | 2580 | // construct view cells using the collected samples
|
---|
| 2581 | RayContainer constructionRays;
|
---|
| 2582 | VssRayContainer savedRays;
|
---|
[440] | 2583 |
|
---|
[574] | 2584 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 2585 |
|
---|
[469] | 2586 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2587 |
|
---|
[473] | 2588 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 2589 |
|
---|
[469] | 2590 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2591 | {
|
---|
[473] | 2592 | if (Random(1.0f) < prop)
|
---|
[469] | 2593 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2594 | else
|
---|
| 2595 | savedRays.push_back(*it);
|
---|
| 2596 | }
|
---|
[440] | 2597 |
|
---|
[503] | 2598 | if (mViewCells.empty())
|
---|
| 2599 | {
|
---|
| 2600 | // no view cells loaded
|
---|
[587] | 2601 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2602 | // collect final view cells
|
---|
| 2603 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2604 | }
|
---|
[469] | 2605 | else
|
---|
| 2606 | {
|
---|
| 2607 | mBspTree->Construct(mViewCells);
|
---|
| 2608 | }
|
---|
| 2609 |
|
---|
| 2610 | // destroy rays created only for construction
|
---|
| 2611 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2612 |
|
---|
[440] | 2613 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 2614 |
|
---|
| 2615 | //EvaluateViewCellsStats();
|
---|
[660] | 2616 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2617 |
|
---|
[469] | 2618 | // recast rest of the rays
|
---|
[649] | 2619 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2620 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2621 |
|
---|
[719] | 2622 | // real meshes are contructed at this stage
|
---|
| 2623 | if (0)
|
---|
| 2624 | {
|
---|
| 2625 | cout << "finalizing view cells ... ";
|
---|
| 2626 | FinalizeViewCells(true);
|
---|
| 2627 | cout << "finished" << endl;
|
---|
| 2628 | }
|
---|
| 2629 |
|
---|
[440] | 2630 | return sampleContributions;
|
---|
| 2631 | }
|
---|
| 2632 |
|
---|
[503] | 2633 |
|
---|
[480] | 2634 | void BspViewCellsManager::CollectViewCells()
|
---|
| 2635 | {
|
---|
[587] | 2636 | // view cells tree constructed
|
---|
| 2637 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 2638 | {
|
---|
[587] | 2639 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2640 | }
|
---|
| 2641 | else
|
---|
| 2642 | {
|
---|
| 2643 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 2644 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 2645 | mNumActiveViewCells);
|
---|
[587] | 2646 | }
|
---|
[480] | 2647 | }
|
---|
[468] | 2648 |
|
---|
[503] | 2649 |
|
---|
[471] | 2650 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2651 | {
|
---|
[471] | 2652 | // compute view cell area as subsititute for probability
|
---|
[591] | 2653 | if (1)
|
---|
| 2654 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2655 | else
|
---|
| 2656 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2657 | }
|
---|
[440] | 2658 |
|
---|
[503] | 2659 |
|
---|
[440] | 2660 |
|
---|
[468] | 2661 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2662 | const Vector3 &termination,
|
---|
| 2663 | ViewCellContainer &viewcells)
|
---|
[440] | 2664 | {
|
---|
[468] | 2665 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2666 | }
|
---|
| 2667 |
|
---|
| 2668 |
|
---|
[503] | 2669 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2670 | const VssRayContainer &rays)
|
---|
| 2671 | {
|
---|
[469] | 2672 | if (!ViewCellsConstructed())
|
---|
[441] | 2673 | {
|
---|
| 2674 | Debug << "view cells not constructed" << endl;
|
---|
| 2675 | return 0;
|
---|
| 2676 | }
|
---|
[590] | 2677 |
|
---|
| 2678 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 2679 | if (mViewCellsFinished)
|
---|
| 2680 | {
|
---|
| 2681 | FinalizeViewCells(true);
|
---|
| 2682 | EvaluateViewCellsStats();
|
---|
| 2683 |
|
---|
| 2684 | return 0;
|
---|
| 2685 | }
|
---|
| 2686 |
|
---|
[440] | 2687 | //-- post processing of bsp view cells
|
---|
[600] | 2688 |
|
---|
[440] | 2689 | int vcSize = 0;
|
---|
| 2690 | int pvsSize = 0;
|
---|
| 2691 |
|
---|
[591] | 2692 | //-- merge view cells
|
---|
[649] | 2693 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2694 | long startTime = GetTime();
|
---|
| 2695 |
|
---|
| 2696 | VssRayContainer postProcessRays;
|
---|
| 2697 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2698 |
|
---|
[592] | 2699 | if (mMergeViewCells)
|
---|
[591] | 2700 | {
|
---|
[660] | 2701 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2702 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2703 | }
|
---|
| 2704 | else
|
---|
| 2705 | {
|
---|
[660] | 2706 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2707 |
|
---|
[649] | 2708 | // create spatial merge hierarchy
|
---|
[752] | 2709 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2710 | mViewCellsTree->SetRoot(root);
|
---|
| 2711 |
|
---|
| 2712 | // compute pvs
|
---|
| 2713 | ObjectPvs pvs;
|
---|
| 2714 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2715 | }
|
---|
[440] | 2716 |
|
---|
[660] | 2717 | // export statistics after merge
|
---|
[666] | 2718 | if (1)
|
---|
| 2719 | {
|
---|
| 2720 | char mstats[100];
|
---|
[1004] | 2721 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2722 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2723 | }
|
---|
[650] | 2724 |
|
---|
[649] | 2725 | //-- stats and visualizations
|
---|
| 2726 | cout << "finished" << endl;
|
---|
[650] | 2727 | cout << "merged view cells in "
|
---|
[752] | 2728 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[440] | 2729 |
|
---|
[650] | 2730 | Debug << "Postprocessing: Merged view cells in "
|
---|
[752] | 2731 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
[649] | 2732 |
|
---|
[503] | 2733 |
|
---|
[660] | 2734 | //-- visualization and statistics
|
---|
[600] | 2735 | // reset view cells and stats
|
---|
[480] | 2736 | ResetViewCells();
|
---|
[660] | 2737 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2738 |
|
---|
[1121] | 2739 | // save color code
|
---|
| 2740 | const int savedColorCode = mColorCode;
|
---|
[605] | 2741 |
|
---|
[600] | 2742 | //BspLeaf::NewMail();
|
---|
| 2743 | if (1) // export merged view cells
|
---|
| 2744 | {
|
---|
| 2745 | mColorCode = 0;
|
---|
[605] | 2746 |
|
---|
[744] | 2747 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2748 |
|
---|
[600] | 2749 |
|
---|
| 2750 | cout << "exporting view cells after merge ... ";
|
---|
| 2751 |
|
---|
| 2752 | if (exporter)
|
---|
| 2753 | {
|
---|
| 2754 | if (mExportGeometry)
|
---|
| 2755 | exporter->ExportGeometry(objects);
|
---|
| 2756 |
|
---|
| 2757 | //exporter->SetWireframe();
|
---|
| 2758 | exporter->SetFilled();
|
---|
| 2759 | ExportViewCellsForViz(exporter);
|
---|
| 2760 |
|
---|
| 2761 |
|
---|
| 2762 | delete exporter;
|
---|
| 2763 | }
|
---|
| 2764 | cout << "finished" << endl;
|
---|
| 2765 | }
|
---|
| 2766 |
|
---|
[752] | 2767 | if (1) // export merged view cells using pvs color coding
|
---|
[600] | 2768 | {
|
---|
| 2769 | mColorCode = 1;
|
---|
| 2770 |
|
---|
[744] | 2771 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2772 |
|
---|
| 2773 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2774 |
|
---|
| 2775 | if (exporter)
|
---|
| 2776 | {
|
---|
| 2777 | //exporter->SetWireframe();
|
---|
[752] | 2778 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
| 2779 |
|
---|
[600] | 2780 | if (mExportGeometry)
|
---|
| 2781 | exporter->ExportGeometry(objects);
|
---|
| 2782 |
|
---|
| 2783 | //exporter->SetWireframe();
|
---|
| 2784 | exporter->SetFilled();
|
---|
| 2785 | ExportViewCellsForViz(exporter);
|
---|
| 2786 |
|
---|
| 2787 | delete exporter;
|
---|
| 2788 | }
|
---|
| 2789 | cout << "finished" << endl;
|
---|
| 2790 | }
|
---|
[693] | 2791 |
|
---|
[1122] | 2792 | // only for debugging purpose: test if the subdivision is valid
|
---|
| 2793 | if (0) TestSubdivision();
|
---|
[693] | 2794 |
|
---|
[600] | 2795 | mColorCode = savedColorCode;
|
---|
| 2796 |
|
---|
[719] | 2797 | // compute final meshes and volume / area
|
---|
| 2798 | if (1) FinalizeViewCells(true);
|
---|
| 2799 |
|
---|
[587] | 2800 | // write view cells to disc
|
---|
| 2801 | if (mExportViewCells)
|
---|
| 2802 | {
|
---|
[840] | 2803 | char filename[100];
|
---|
[1004] | 2804 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2805 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2806 | }
|
---|
[840] | 2807 |
|
---|
| 2808 | // export bounding boxes
|
---|
[931] | 2809 | if (0 && mExportBboxesForPvs)
|
---|
[840] | 2810 | {
|
---|
| 2811 | char filename[100];
|
---|
[1004] | 2812 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[840] | 2813 | ExportBoundingBoxes(filename, objects);
|
---|
| 2814 | }
|
---|
[587] | 2815 |
|
---|
[840] | 2816 |
|
---|
[650] | 2817 | return 0;
|
---|
[440] | 2818 | }
|
---|
| 2819 |
|
---|
[477] | 2820 |
|
---|
| 2821 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2822 | {
|
---|
| 2823 | }
|
---|
| 2824 |
|
---|
| 2825 |
|
---|
[440] | 2826 | int BspViewCellsManager::GetType() const
|
---|
| 2827 | {
|
---|
| 2828 | return BSP;
|
---|
| 2829 | }
|
---|
| 2830 |
|
---|
| 2831 |
|
---|
| 2832 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2833 | const VssRayContainer &sampleRays)
|
---|
[440] | 2834 | {
|
---|
[469] | 2835 | if (!ViewCellsConstructed())
|
---|
| 2836 | return;
|
---|
[574] | 2837 |
|
---|
[600] | 2838 | int savedColorCode = mColorCode;
|
---|
| 2839 |
|
---|
| 2840 |
|
---|
| 2841 | if (1) // export final view cells
|
---|
[440] | 2842 | {
|
---|
[1020] | 2843 | mColorCode = 1; // hack color code
|
---|
[822] | 2844 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 2845 |
|
---|
| 2846 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2847 |
|
---|
[469] | 2848 | if (exporter)
|
---|
[440] | 2849 | {
|
---|
[600] | 2850 | //exporter->SetWireframe();
|
---|
| 2851 |
|
---|
| 2852 | if (mExportGeometry)
|
---|
| 2853 | exporter->ExportGeometry(objects);
|
---|
[590] | 2854 |
|
---|
[801] | 2855 | //exporter->SetFilled();
|
---|
[1020] | 2856 | const bool b = mUseClipPlaneForViz;
|
---|
[801] | 2857 | mUseClipPlaneForViz = false;
|
---|
[1020] | 2858 |
|
---|
[508] | 2859 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 2860 |
|
---|
[801] | 2861 | mUseClipPlaneForViz = b;
|
---|
[469] | 2862 | delete exporter;
|
---|
[440] | 2863 | }
|
---|
[469] | 2864 | cout << "finished" << endl;
|
---|
[503] | 2865 | }
|
---|
[477] | 2866 |
|
---|
[600] | 2867 | mColorCode = savedColorCode;
|
---|
| 2868 |
|
---|
[469] | 2869 | //-- visualization of the BSP splits
|
---|
| 2870 | bool exportSplits = false;
|
---|
[1004] | 2871 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2872 |
|
---|
[469] | 2873 | if (exportSplits)
|
---|
[440] | 2874 | {
|
---|
[469] | 2875 | cout << "exporting splits ... ";
|
---|
[477] | 2876 | ExportSplits(objects);
|
---|
[469] | 2877 | cout << "finished" << endl;
|
---|
[440] | 2878 | }
|
---|
[477] | 2879 |
|
---|
[600] | 2880 | // export single view cells
|
---|
[477] | 2881 | ExportBspPvs(objects);
|
---|
[440] | 2882 | }
|
---|
| 2883 |
|
---|
| 2884 |
|
---|
[477] | 2885 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2886 | {
|
---|
| 2887 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2888 |
|
---|
[503] | 2889 | if (exporter)
|
---|
| 2890 | {
|
---|
[598] | 2891 | //exporter->SetFilled();
|
---|
| 2892 |
|
---|
| 2893 | if (mExportGeometry)
|
---|
| 2894 | exporter->ExportGeometry(objects);
|
---|
| 2895 |
|
---|
[503] | 2896 | Material m;
|
---|
[440] | 2897 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2898 | exporter->SetForcedMaterial(m);
|
---|
| 2899 | exporter->SetWireframe();
|
---|
[503] | 2900 |
|
---|
[440] | 2901 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2902 |
|
---|
[482] | 2903 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2904 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2905 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2906 | //exporter->ResetForcedMaterial();
|
---|
| 2907 |
|
---|
[440] | 2908 | delete exporter;
|
---|
| 2909 | }
|
---|
| 2910 | }
|
---|
| 2911 |
|
---|
[477] | 2912 |
|
---|
| 2913 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2914 | {
|
---|
[477] | 2915 | const int leafOut = 10;
|
---|
[503] | 2916 |
|
---|
[477] | 2917 | ViewCell::NewMail();
|
---|
[440] | 2918 |
|
---|
[477] | 2919 | //-- some rays for output
|
---|
| 2920 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2921 |
|
---|
[477] | 2922 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2923 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2924 |
|
---|
[997] | 2925 | // sort view cells in order to find the largest view cells
|
---|
[587] | 2926 | if (0)
|
---|
[801] | 2927 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[587] | 2928 |
|
---|
[503] | 2929 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2930 |
|
---|
[478] | 2931 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2932 | {
|
---|
[478] | 2933 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2934 | VssRayContainer vcRays;
|
---|
| 2935 | Intersectable::NewMail();
|
---|
[582] | 2936 | ViewCell *vc;
|
---|
| 2937 |
|
---|
| 2938 | if (0)
|
---|
| 2939 | vc = mViewCells[i];
|
---|
| 2940 | else
|
---|
| 2941 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2942 |
|
---|
[478] | 2943 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2944 |
|
---|
[587] | 2945 | if(0)
|
---|
[477] | 2946 | {
|
---|
[587] | 2947 | // check whether we can add the current ray to the output rays
|
---|
| 2948 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2949 | {
|
---|
[587] | 2950 | BspRay *ray = mBspRays[k];
|
---|
| 2951 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2952 | {
|
---|
| 2953 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2954 | if (vc == leaf->GetViewCell())
|
---|
| 2955 | vcRays.push_back(ray->vssRay);
|
---|
| 2956 | }
|
---|
[477] | 2957 | }
|
---|
| 2958 | }
|
---|
[587] | 2959 |
|
---|
[478] | 2960 | //bspLeaves[j]->Mail();
|
---|
| 2961 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2962 |
|
---|
[478] | 2963 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2964 |
|
---|
[478] | 2965 | exporter->SetWireframe();
|
---|
[477] | 2966 |
|
---|
[478] | 2967 | Material m;//= RandomMaterial();
|
---|
| 2968 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2969 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2970 |
|
---|
[587] | 2971 | ExportViewCellGeometry(exporter, vc);
|
---|
| 2972 |
|
---|
[478] | 2973 | // export rays piercing this view cell
|
---|
| 2974 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2975 |
|
---|
[478] | 2976 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2977 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2978 |
|
---|
[478] | 2979 | ObjectPvsMap::const_iterator it,
|
---|
| 2980 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2981 |
|
---|
[478] | 2982 | exporter->SetFilled();
|
---|
[469] | 2983 |
|
---|
[478] | 2984 | // output PVS of view cell
|
---|
[503] | 2985 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2986 | {
|
---|
| 2987 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2988 |
|
---|
[478] | 2989 | if (!intersect->Mailed())
|
---|
| 2990 | {
|
---|
| 2991 | Material m = RandomMaterial();
|
---|
| 2992 | exporter->SetForcedMaterial(m);
|
---|
| 2993 |
|
---|
| 2994 | exporter->ExportIntersectable(intersect);
|
---|
| 2995 | intersect->Mail();
|
---|
[503] | 2996 | }
|
---|
[477] | 2997 | }
|
---|
[503] | 2998 |
|
---|
[478] | 2999 | DEL_PTR(exporter);
|
---|
| 3000 | cout << "finished" << endl;
|
---|
[477] | 3001 | }
|
---|
| 3002 |
|
---|
| 3003 | Debug << endl;
|
---|
[440] | 3004 | }
|
---|
| 3005 |
|
---|
[441] | 3006 |
|
---|
[693] | 3007 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3008 | {
|
---|
| 3009 | ViewCellContainer leaves;
|
---|
| 3010 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3011 |
|
---|
| 3012 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3013 |
|
---|
| 3014 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3015 | float subdivVol = 0;
|
---|
| 3016 | float newVol = 0;
|
---|
| 3017 |
|
---|
| 3018 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3019 | {
|
---|
| 3020 | BspNodeGeometry geom;
|
---|
| 3021 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3022 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3023 |
|
---|
| 3024 | const float lVol = geom.GetVolume();
|
---|
| 3025 |
|
---|
| 3026 | newVol += lVol;
|
---|
| 3027 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3028 |
|
---|
[704] | 3029 | float thres = 0.9f;
|
---|
[694] | 3030 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3031 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3032 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3033 | }
|
---|
| 3034 |
|
---|
| 3035 | Debug << "exact volume: " << vol << endl;
|
---|
| 3036 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3037 | Debug << "new volume: " << newVol << endl;
|
---|
| 3038 | }
|
---|
| 3039 |
|
---|
| 3040 |
|
---|
[580] | 3041 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3042 | ViewCell *vc,
|
---|
[1047] | 3043 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 3044 | {
|
---|
[1027] | 3045 | // export mesh if available
|
---|
[482] | 3046 | if (vc->GetMesh())
|
---|
| 3047 | {
|
---|
[587] | 3048 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3049 | return;
|
---|
[482] | 3050 | }
|
---|
[1027] | 3051 | // otherwise construct from leaves
|
---|
[660] | 3052 | if (clipPlane)
|
---|
[591] | 3053 | {
|
---|
[1047] | 3054 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3055 |
|
---|
[726] | 3056 | ViewCellContainer leaves;
|
---|
| 3057 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3058 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3059 |
|
---|
[726] | 3060 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3061 | {
|
---|
[726] | 3062 | BspNodeGeometry geom;
|
---|
| 3063 |
|
---|
[681] | 3064 | BspNodeGeometry front;
|
---|
| 3065 | BspNodeGeometry back;
|
---|
[591] | 3066 |
|
---|
[726] | 3067 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3068 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 3069 |
|
---|
[726] | 3070 | const float eps = 0.00000001f;
|
---|
[1047] | 3071 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3072 |
|
---|
| 3073 | if (cf == -1)
|
---|
| 3074 | {
|
---|
| 3075 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3076 | }
|
---|
| 3077 | else if (cf == 0)
|
---|
| 3078 | {
|
---|
| 3079 | geom.SplitGeometry(front,
|
---|
| 3080 | back,
|
---|
[1047] | 3081 | plane,
|
---|
[726] | 3082 | mViewSpaceBox,
|
---|
| 3083 | eps);
|
---|
| 3084 |
|
---|
| 3085 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 3086 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 3087 | if (back.Valid())
|
---|
| 3088 | {
|
---|
| 3089 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3090 | }
|
---|
| 3091 | }
|
---|
[681] | 3092 | }
|
---|
[591] | 3093 | }
|
---|
| 3094 | else
|
---|
| 3095 | {
|
---|
[726] | 3096 | BspNodeGeometry geom;
|
---|
| 3097 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3098 |
|
---|
[678] | 3099 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 3100 | }
|
---|
[482] | 3101 | }
|
---|
| 3102 |
|
---|
[503] | 3103 |
|
---|
| 3104 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3105 | {
|
---|
[726] | 3106 | // delete previous mesh
|
---|
| 3107 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 3108 | BspNodeGeometry geom;
|
---|
| 3109 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3110 |
|
---|
[1001] | 3111 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3112 |
|
---|
[840] | 3113 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3114 | vc->SetMesh(mesh);
|
---|
[503] | 3115 | }
|
---|
| 3116 |
|
---|
[551] | 3117 |
|
---|
[587] | 3118 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3119 | const bool createMesh)
|
---|
[502] | 3120 | {
|
---|
[587] | 3121 | float area = 0;
|
---|
| 3122 | float volume = 0;
|
---|
[572] | 3123 |
|
---|
[587] | 3124 | ViewCellContainer leaves;
|
---|
| 3125 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3126 |
|
---|
| 3127 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3128 |
|
---|
[693] | 3129 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3130 | {
|
---|
| 3131 | BspNodeGeometry geom;
|
---|
| 3132 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3133 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3134 |
|
---|
[719] | 3135 | const float lVol = geom.GetVolume();
|
---|
| 3136 | const float lArea = geom.GetArea();
|
---|
[693] | 3137 |
|
---|
| 3138 | //(*it)->SetVolume(vol);
|
---|
| 3139 | //(*it)->SetArea(area);
|
---|
| 3140 |
|
---|
| 3141 | area += lArea;
|
---|
| 3142 | volume += lVol;
|
---|
| 3143 |
|
---|
| 3144 | CreateMesh(*it);
|
---|
[587] | 3145 | }
|
---|
| 3146 |
|
---|
| 3147 | viewCell->SetVolume(volume);
|
---|
| 3148 | viewCell->SetArea(area);
|
---|
[502] | 3149 | }
|
---|
| 3150 |
|
---|
[580] | 3151 |
|
---|
[879] | 3152 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3153 | {
|
---|
[1021] | 3154 | if (!ViewCellsConstructed())
|
---|
[587] | 3155 | return NULL;
|
---|
| 3156 |
|
---|
| 3157 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 3158 | return NULL;
|
---|
| 3159 |
|
---|
| 3160 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3161 | }
|
---|
| 3162 |
|
---|
| 3163 |
|
---|
[587] | 3164 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3165 | vector<MergeCandidate> &candidates)
|
---|
| 3166 | {
|
---|
| 3167 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3168 |
|
---|
| 3169 | if (mUseRaysForMerge)
|
---|
| 3170 | {
|
---|
| 3171 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3172 | }
|
---|
| 3173 | else
|
---|
| 3174 | {
|
---|
| 3175 | vector<BspLeaf *> leaves;
|
---|
| 3176 | mBspTree->CollectLeaves(leaves);
|
---|
| 3177 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3178 | }
|
---|
| 3179 |
|
---|
| 3180 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3181 | }
|
---|
| 3182 |
|
---|
| 3183 |
|
---|
[440] | 3184 |
|
---|
[1047] | 3185 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3186 | const bool exportPvs,
|
---|
| 3187 | const ObjectContainer &objects)
|
---|
[590] | 3188 | {
|
---|
[1077] | 3189 | #if TODO
|
---|
[590] | 3190 | cout << "exporting view cells to xml ... ";
|
---|
| 3191 | std::ofstream stream;
|
---|
[503] | 3192 |
|
---|
[590] | 3193 | // for output we need unique ids for each view cell
|
---|
| 3194 | CreateUniqueViewCellIds();
|
---|
[503] | 3195 |
|
---|
[590] | 3196 |
|
---|
| 3197 | stream.open(filename.c_str());
|
---|
| 3198 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3199 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3200 |
|
---|
| 3201 | //-- the view space bounding box
|
---|
| 3202 | stream << "<ViewSpaceBox"
|
---|
| 3203 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3204 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 3205 |
|
---|
| 3206 | //-- the type of the view cells hierarchy
|
---|
[975] | 3207 |
|
---|
[840] | 3208 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
[975] | 3209 | stream << "<Hierarchy name=\"vspBspTree\" >" << endl;
|
---|
[840] | 3210 |
|
---|
[590] | 3211 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 3212 | stream << "<ViewCells>" << endl;
|
---|
[610] | 3213 |
|
---|
[871] | 3214 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[590] | 3215 |
|
---|
| 3216 | stream << "</ViewCells>" << endl;
|
---|
| 3217 |
|
---|
| 3218 | //-- load the hierarchy
|
---|
| 3219 | stream << "<Hierarchy>" << endl;
|
---|
| 3220 | mBspTree->Export(stream);
|
---|
| 3221 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 3222 |
|
---|
[975] | 3223 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3224 | stream.close();
|
---|
| 3225 |
|
---|
| 3226 | cout << "finished" << endl;
|
---|
[955] | 3227 | #endif
|
---|
[590] | 3228 | return true;
|
---|
| 3229 | }
|
---|
| 3230 |
|
---|
| 3231 |
|
---|
[650] | 3232 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3233 | {
|
---|
[752] | 3234 | // terminate recursion
|
---|
[650] | 3235 | if (root->IsLeaf())
|
---|
| 3236 | {
|
---|
[752] | 3237 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3238 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3239 | return leaf->GetViewCell();
|
---|
[650] | 3240 | }
|
---|
| 3241 |
|
---|
| 3242 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3243 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3244 |
|
---|
[752] | 3245 | // evaluate merge cost for priority traversal
|
---|
[650] | 3246 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3247 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3248 |
|
---|
[650] | 3249 | float volume = 0;
|
---|
[649] | 3250 |
|
---|
[650] | 3251 | BspNode *front = interior->GetFront();
|
---|
| 3252 | BspNode *back = interior->GetBack();
|
---|
[649] | 3253 |
|
---|
[752] | 3254 |
|
---|
| 3255 | //-- recursivly compute child hierarchies
|
---|
[650] | 3256 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3257 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3258 |
|
---|
[752] | 3259 |
|
---|
| 3260 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3261 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3262 |
|
---|
[650] | 3263 | volume += backVc->GetVolume();
|
---|
| 3264 | volume += frontVc->GetVolume();
|
---|
[649] | 3265 |
|
---|
[650] | 3266 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3267 |
|
---|
[650] | 3268 | return viewCellInterior;
|
---|
[610] | 3269 | }
|
---|
| 3270 |
|
---|
[650] | 3271 |
|
---|
[590] | 3272 | /************************************************************************/
|
---|
| 3273 | /* KdViewCellsManager implementation */
|
---|
| 3274 | /************************************************************************/
|
---|
| 3275 |
|
---|
| 3276 |
|
---|
| 3277 |
|
---|
[1004] | 3278 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
| 3279 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3280 | {
|
---|
| 3281 | }
|
---|
| 3282 |
|
---|
[605] | 3283 |
|
---|
[471] | 3284 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3285 | {
|
---|
[479] | 3286 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3287 | if (0)
|
---|
| 3288 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3289 | else
|
---|
| 3290 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3291 | }
|
---|
| 3292 |
|
---|
| 3293 |
|
---|
| 3294 |
|
---|
[479] | 3295 |
|
---|
[480] | 3296 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3297 | {
|
---|
| 3298 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3299 | }
|
---|
[479] | 3300 |
|
---|
[519] | 3301 |
|
---|
[574] | 3302 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3303 | const VssRayContainer &rays)
|
---|
[440] | 3304 | {
|
---|
[441] | 3305 | // if view cells already constructed
|
---|
[440] | 3306 | if (ViewCellsConstructed())
|
---|
| 3307 | return 0;
|
---|
[441] | 3308 |
|
---|
[440] | 3309 | mKdTree->Construct();
|
---|
| 3310 |
|
---|
[480] | 3311 | mTotalAreaValid = false;
|
---|
[469] | 3312 | // create the view cells
|
---|
| 3313 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 3314 |
|
---|
[480] | 3315 | // cast rays
|
---|
[574] | 3316 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3317 |
|
---|
[479] | 3318 | EvaluateViewCellsStats();
|
---|
[660] | 3319 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3320 |
|
---|
[440] | 3321 | return 0;
|
---|
| 3322 | }
|
---|
| 3323 |
|
---|
[587] | 3324 |
|
---|
[440] | 3325 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3326 | {
|
---|
| 3327 | return mKdTree->GetRoot() != NULL;
|
---|
| 3328 | }
|
---|
| 3329 |
|
---|
[1020] | 3330 |
|
---|
[503] | 3331 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3332 | const VssRayContainer &rays)
|
---|
[440] | 3333 | {
|
---|
| 3334 | return 0;
|
---|
| 3335 | }
|
---|
| 3336 |
|
---|
[1020] | 3337 |
|
---|
[440] | 3338 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3339 | const VssRayContainer &sampleRays)
|
---|
[440] | 3340 | {
|
---|
[441] | 3341 | if (!ViewCellsConstructed())
|
---|
| 3342 | return;
|
---|
| 3343 |
|
---|
[469] | 3344 | // using view cells instead of the kd PVS of objects
|
---|
| 3345 | const bool useViewCells = true;
|
---|
| 3346 | bool exportRays = false;
|
---|
[440] | 3347 |
|
---|
| 3348 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3349 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3350 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3351 |
|
---|
[469] | 3352 | if (useViewCells)
|
---|
[440] | 3353 | {
|
---|
[469] | 3354 | const int leafOut = 10;
|
---|
[503] | 3355 |
|
---|
[469] | 3356 | ViewCell::NewMail();
|
---|
[503] | 3357 |
|
---|
[469] | 3358 | //-- some rays for output
|
---|
| 3359 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3360 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3361 |
|
---|
| 3362 | //-- some random view cells and rays for output
|
---|
| 3363 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3364 |
|
---|
[469] | 3365 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3366 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3367 |
|
---|
[469] | 3368 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3369 | {
|
---|
[469] | 3370 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3371 | RayContainer vcRays;
|
---|
[503] | 3372 |
|
---|
[469] | 3373 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3374 | #if 0
|
---|
[469] | 3375 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3376 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3377 | {
|
---|
[469] | 3378 | Ray *ray = sampleRays[k];
|
---|
[503] | 3379 |
|
---|
[469] | 3380 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3381 | {
|
---|
| 3382 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3383 |
|
---|
| 3384 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3385 | {
|
---|
| 3386 | vcRays.push_back(ray);
|
---|
| 3387 | }
|
---|
| 3388 | }
|
---|
[479] | 3389 | }
|
---|
[503] | 3390 | #endif
|
---|
[469] | 3391 | Intersectable::NewMail();
|
---|
[503] | 3392 |
|
---|
[469] | 3393 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 3394 |
|
---|
[469] | 3395 | //bspLeaves[j]->Mail();
|
---|
| 3396 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 3397 |
|
---|
[469] | 3398 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3399 | exporter->SetFilled();
|
---|
| 3400 |
|
---|
| 3401 | exporter->SetWireframe();
|
---|
| 3402 | //exporter->SetFilled();
|
---|
[503] | 3403 |
|
---|
[469] | 3404 | Material m;//= RandomMaterial();
|
---|
| 3405 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3406 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3407 |
|
---|
[469] | 3408 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3409 | exporter->ExportBox(box);
|
---|
| 3410 |
|
---|
| 3411 | // export rays piercing this view cell
|
---|
[503] | 3412 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3413 |
|
---|
[469] | 3414 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3415 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3416 |
|
---|
[469] | 3417 | // exporter->SetWireframe();
|
---|
| 3418 | exporter->SetFilled();
|
---|
[503] | 3419 |
|
---|
[469] | 3420 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3421 | // -- output PVS of view cell
|
---|
[1189] | 3422 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3423 | {
|
---|
| 3424 | Intersectable *intersect = (*it).first;
|
---|
| 3425 | if (!intersect->Mailed())
|
---|
| 3426 | {
|
---|
| 3427 | exporter->ExportIntersectable(intersect);
|
---|
| 3428 | intersect->Mail();
|
---|
[503] | 3429 | }
|
---|
[440] | 3430 | }
|
---|
[503] | 3431 |
|
---|
[469] | 3432 | DEL_PTR(exporter);
|
---|
| 3433 | cout << "finished" << endl;
|
---|
[440] | 3434 | }
|
---|
[469] | 3435 |
|
---|
| 3436 | DEL_PTR(rays);
|
---|
[440] | 3437 | }
|
---|
[469] | 3438 | else // using kd PVS of objects
|
---|
| 3439 | {
|
---|
| 3440 | for (int i = 0; i < limit; ++ i)
|
---|
| 3441 | {
|
---|
| 3442 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3443 |
|
---|
[469] | 3444 | // check whether we can add this to the rays
|
---|
[503] | 3445 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3446 | {
|
---|
| 3447 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3448 | {
|
---|
| 3449 | rays[j].push_back(ray);
|
---|
| 3450 | }
|
---|
| 3451 | }
|
---|
| 3452 | }
|
---|
[440] | 3453 |
|
---|
[503] | 3454 | if (exportRays)
|
---|
[469] | 3455 | {
|
---|
| 3456 | Exporter *exporter = NULL;
|
---|
| 3457 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3458 | exporter->SetWireframe();
|
---|
| 3459 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3460 |
|
---|
[728] | 3461 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3462 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3463 |
|
---|
| 3464 | exporter->SetFilled();
|
---|
[503] | 3465 |
|
---|
[469] | 3466 | delete exporter;
|
---|
| 3467 | }
|
---|
[440] | 3468 |
|
---|
[503] | 3469 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3470 | {
|
---|
| 3471 | Intersectable *object = objects[k];
|
---|
[503] | 3472 | char s[64];
|
---|
[469] | 3473 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 3474 |
|
---|
[469] | 3475 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3476 | exporter->SetWireframe();
|
---|
[503] | 3477 |
|
---|
[1233] | 3478 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 3479 | Intersectable::NewMail();
|
---|
[503] | 3480 |
|
---|
[469] | 3481 | // avoid adding the object to the list
|
---|
| 3482 | object->Mail();
|
---|
| 3483 | ObjectContainer visibleObjects;
|
---|
[503] | 3484 |
|
---|
[1233] | 3485 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3486 | {
|
---|
[1233] | 3487 | KdNode *node = (*kit).first;
|
---|
[469] | 3488 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3489 |
|
---|
[469] | 3490 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3491 | }
|
---|
[503] | 3492 |
|
---|
[469] | 3493 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3494 | exporter->SetFilled();
|
---|
[503] | 3495 |
|
---|
[469] | 3496 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3497 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3498 |
|
---|
[469] | 3499 | Material m;
|
---|
| 3500 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3501 | exporter->SetForcedMaterial(m);
|
---|
| 3502 | exporter->ExportIntersectable(object);
|
---|
[503] | 3503 |
|
---|
[469] | 3504 | delete exporter;
|
---|
[440] | 3505 | }
|
---|
[503] | 3506 | }
|
---|
[440] | 3507 | }
|
---|
| 3508 |
|
---|
[469] | 3509 |
|
---|
[580] | 3510 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3511 | {
|
---|
| 3512 | return new KdViewCell(mesh);
|
---|
| 3513 | }
|
---|
[482] | 3514 |
|
---|
[580] | 3515 |
|
---|
| 3516 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3517 | ViewCell *vc,
|
---|
[1047] | 3518 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 3519 | {
|
---|
[580] | 3520 | ViewCellContainer leaves;
|
---|
[485] | 3521 |
|
---|
[580] | 3522 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3523 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3524 |
|
---|
| 3525 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3526 | {
|
---|
| 3527 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 3528 |
|
---|
| 3529 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 3530 | }
|
---|
[482] | 3531 | }
|
---|
| 3532 |
|
---|
| 3533 |
|
---|
[440] | 3534 | int KdViewCellsManager::GetType() const
|
---|
| 3535 | {
|
---|
| 3536 | return ViewCellsManager::KD;
|
---|
| 3537 | }
|
---|
| 3538 |
|
---|
| 3539 |
|
---|
[441] | 3540 |
|
---|
[440] | 3541 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3542 | {
|
---|
| 3543 | KdNode *node = leaf;
|
---|
| 3544 |
|
---|
| 3545 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3546 | node = node->mParent;
|
---|
[1176] | 3547 |
|
---|
[440] | 3548 | return node;
|
---|
| 3549 | }
|
---|
| 3550 |
|
---|
[469] | 3551 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3552 | const Vector3 &termination,
|
---|
| 3553 | ViewCellContainer &viewcells)
|
---|
[466] | 3554 | {
|
---|
[469] | 3555 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3556 | }
|
---|
| 3557 |
|
---|
[469] | 3558 |
|
---|
[503] | 3559 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3560 | {
|
---|
[551] | 3561 | // TODO
|
---|
[503] | 3562 | }
|
---|
| 3563 |
|
---|
[580] | 3564 |
|
---|
| 3565 |
|
---|
| 3566 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3567 | vector<MergeCandidate> &candidates)
|
---|
| 3568 | {
|
---|
| 3569 | // TODO
|
---|
| 3570 | }
|
---|
| 3571 |
|
---|
[1021] | 3572 |
|
---|
| 3573 |
|
---|
| 3574 |
|
---|
[503] | 3575 | /**************************************************************************/
|
---|
| 3576 | /* VspBspViewCellsManager implementation */
|
---|
| 3577 | /**************************************************************************/
|
---|
[482] | 3578 |
|
---|
[503] | 3579 |
|
---|
[1004] | 3580 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 3581 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 3582 | {
|
---|
[1004] | 3583 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3584 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3585 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3586 | }
|
---|
| 3587 |
|
---|
[477] | 3588 |
|
---|
[475] | 3589 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3590 | {
|
---|
| 3591 | }
|
---|
| 3592 |
|
---|
[477] | 3593 |
|
---|
[471] | 3594 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3595 | {
|
---|
[551] | 3596 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3597 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3598 | else
|
---|
| 3599 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3600 | }
|
---|
| 3601 |
|
---|
[477] | 3602 |
|
---|
[480] | 3603 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3604 | {
|
---|
[581] | 3605 | // view cells tree constructed
|
---|
| 3606 | if (!ViewCellsTreeConstructed())
|
---|
| 3607 | {
|
---|
[590] | 3608 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3609 | }
|
---|
| 3610 | else
|
---|
[664] | 3611 | { // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3612 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3613 | }
|
---|
[480] | 3614 | }
|
---|
| 3615 |
|
---|
| 3616 |
|
---|
[1021] | 3617 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3618 | vector<MergeCandidate> &candidates)
|
---|
| 3619 | {
|
---|
| 3620 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3621 |
|
---|
| 3622 | if (mUseRaysForMerge)
|
---|
| 3623 | {
|
---|
| 3624 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3625 | }
|
---|
| 3626 | else
|
---|
| 3627 | {
|
---|
| 3628 | vector<BspLeaf *> leaves;
|
---|
| 3629 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3630 |
|
---|
| 3631 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3632 | }
|
---|
| 3633 |
|
---|
| 3634 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3635 | }
|
---|
| 3636 |
|
---|
| 3637 |
|
---|
[442] | 3638 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3639 | {
|
---|
| 3640 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3641 | }
|
---|
| 3642 |
|
---|
[462] | 3643 |
|
---|
[442] | 3644 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3645 | {
|
---|
| 3646 | return new BspViewCell(mesh);
|
---|
| 3647 | }
|
---|
| 3648 |
|
---|
[569] | 3649 |
|
---|
[574] | 3650 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3651 | const VssRayContainer &rays)
|
---|
[442] | 3652 | {
|
---|
[710] | 3653 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3654 |
|
---|
[503] | 3655 | // if view cells were already constructed
|
---|
| 3656 | if (ViewCellsConstructed())
|
---|
| 3657 | return 0;
|
---|
[442] | 3658 |
|
---|
[503] | 3659 | int sampleContributions = 0;
|
---|
| 3660 |
|
---|
| 3661 | VssRayContainer sampleRays;
|
---|
| 3662 |
|
---|
[574] | 3663 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3664 |
|
---|
[469] | 3665 | VssRayContainer constructionRays;
|
---|
| 3666 | VssRayContainer savedRays;
|
---|
[442] | 3667 |
|
---|
[660] | 3668 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3669 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3670 |
|
---|
[574] | 3671 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3672 |
|
---|
[574] | 3673 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3674 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3675 |
|
---|
[1002] | 3676 | long startTime;
|
---|
[564] | 3677 |
|
---|
[667] | 3678 | if (1)
|
---|
[1221] | 3679 | {
|
---|
[667] | 3680 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 3681 | }
|
---|
[666] | 3682 | else
|
---|
[1221] | 3683 | {
|
---|
[667] | 3684 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 3685 | }
|
---|
[667] | 3686 |
|
---|
[490] | 3687 | // collapse invalid regions
|
---|
[491] | 3688 | cout << "collapsing invalid tree regions ... ";
|
---|
[1002] | 3689 | startTime = GetTime();
|
---|
| 3690 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3691 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3692 | << " seconds" << endl;
|
---|
| 3693 |
|
---|
[495] | 3694 | cout << "finished" << endl;
|
---|
[503] | 3695 |
|
---|
[1221] | 3696 | //-- stats after construction
|
---|
| 3697 |
|
---|
[660] | 3698 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3699 |
|
---|
[480] | 3700 | ResetViewCells();
|
---|
[660] | 3701 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3702 |
|
---|
[491] | 3703 |
|
---|
[495] | 3704 | startTime = GetTime();
|
---|
[503] | 3705 |
|
---|
[491] | 3706 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3707 |
|
---|
[469] | 3708 | // recast rest of rays
|
---|
[605] | 3709 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3710 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3711 |
|
---|
[491] | 3712 | cout << "finished" << endl;
|
---|
| 3713 |
|
---|
[503] | 3714 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3715 | << " secs" << endl;
|
---|
[442] | 3716 |
|
---|
[485] | 3717 | cout << "construction finished" << endl;
|
---|
[503] | 3718 |
|
---|
[1077] | 3719 |
|
---|
[719] | 3720 | if (0)
|
---|
| 3721 | {
|
---|
[1077] | 3722 | //-- real meshes are contructed at this stage
|
---|
[719] | 3723 | cout << "finalizing view cells ... ";
|
---|
| 3724 | FinalizeViewCells(true);
|
---|
| 3725 | cout << "finished" << endl;
|
---|
| 3726 | }
|
---|
| 3727 |
|
---|
[442] | 3728 | return sampleContributions;
|
---|
| 3729 | }
|
---|
| 3730 |
|
---|
[489] | 3731 |
|
---|
[503] | 3732 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3733 | const ObjectContainer &objects)
|
---|
[475] | 3734 | {
|
---|
[442] | 3735 | int vcSize = 0;
|
---|
| 3736 | int pvsSize = 0;
|
---|
| 3737 |
|
---|
[650] | 3738 | //-- merge view cells
|
---|
| 3739 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3740 | long startTime = GetTime();
|
---|
| 3741 |
|
---|
| 3742 |
|
---|
[597] | 3743 | if (mMergeViewCells)
|
---|
| 3744 | {
|
---|
| 3745 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3746 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3747 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3748 | }
|
---|
| 3749 | else
|
---|
| 3750 | {
|
---|
[710] | 3751 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3752 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3753 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3754 |
|
---|
| 3755 | // compute pvs
|
---|
| 3756 | ObjectPvs pvs;
|
---|
| 3757 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3758 | }
|
---|
[442] | 3759 |
|
---|
[666] | 3760 | if (1)
|
---|
| 3761 | {
|
---|
| 3762 | char mstats[100];
|
---|
[752] | 3763 | ObjectPvs pvs;
|
---|
| 3764 |
|
---|
[1004] | 3765 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3766 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3767 | }
|
---|
[485] | 3768 |
|
---|
[650] | 3769 | //-- stats and visualizations
|
---|
| 3770 | cout << "finished merging" << endl;
|
---|
| 3771 | cout << "merged view cells in "
|
---|
| 3772 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3773 |
|
---|
[650] | 3774 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3775 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3776 |
|
---|
| 3777 |
|
---|
[600] | 3778 | int savedColorCode = mColorCode;
|
---|
| 3779 |
|
---|
[660] | 3780 | // get currently active view cell set
|
---|
| 3781 | ResetViewCells();
|
---|
| 3782 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3783 |
|
---|
[485] | 3784 | //BspLeaf::NewMail();
|
---|
[667] | 3785 | if (1) // export merged view cells
|
---|
[483] | 3786 | {
|
---|
[600] | 3787 | mColorCode = 0;
|
---|
[744] | 3788 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3789 |
|
---|
[485] | 3790 | cout << "exporting view cells after merge ... ";
|
---|
| 3791 |
|
---|
| 3792 | if (exporter)
|
---|
[483] | 3793 | {
|
---|
[600] | 3794 | if (0)
|
---|
| 3795 | exporter->SetWireframe();
|
---|
| 3796 | else
|
---|
| 3797 | exporter->SetFilled();
|
---|
| 3798 |
|
---|
| 3799 | ExportViewCellsForViz(exporter);
|
---|
| 3800 |
|
---|
[485] | 3801 | if (mExportGeometry)
|
---|
[483] | 3802 | {
|
---|
[485] | 3803 | Material m;
|
---|
| 3804 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3805 | exporter->SetForcedMaterial(m);
|
---|
| 3806 | exporter->SetFilled();
|
---|
[442] | 3807 |
|
---|
[485] | 3808 | exporter->ExportGeometry(objects);
|
---|
[442] | 3809 | }
|
---|
[485] | 3810 |
|
---|
[600] | 3811 | delete exporter;
|
---|
| 3812 | }
|
---|
| 3813 | cout << "finished" << endl;
|
---|
| 3814 | }
|
---|
| 3815 |
|
---|
[1176] | 3816 | if (0)
|
---|
[600] | 3817 | {
|
---|
[1176] | 3818 | mColorCode = 1; // export merged view cells using pvs coding
|
---|
[744] | 3819 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 3820 |
|
---|
[600] | 3821 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3822 |
|
---|
| 3823 | if (exporter)
|
---|
| 3824 | {
|
---|
[598] | 3825 | if (0)
|
---|
| 3826 | exporter->SetWireframe();
|
---|
| 3827 | else
|
---|
| 3828 | exporter->SetFilled();
|
---|
| 3829 |
|
---|
| 3830 | ExportViewCellsForViz(exporter);
|
---|
| 3831 |
|
---|
[600] | 3832 | if (mExportGeometry)
|
---|
| 3833 | {
|
---|
| 3834 | Material m;
|
---|
| 3835 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3836 | exporter->SetForcedMaterial(m);
|
---|
| 3837 | exporter->SetFilled();
|
---|
| 3838 |
|
---|
| 3839 | exporter->ExportGeometry(objects);
|
---|
| 3840 | }
|
---|
| 3841 |
|
---|
[485] | 3842 | delete exporter;
|
---|
[442] | 3843 | }
|
---|
[485] | 3844 | cout << "finished" << endl;
|
---|
[442] | 3845 | }
|
---|
[600] | 3846 |
|
---|
| 3847 | mColorCode = savedColorCode;
|
---|
| 3848 |
|
---|
[503] | 3849 | }
|
---|
[475] | 3850 |
|
---|
[503] | 3851 |
|
---|
[609] | 3852 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3853 | {
|
---|
[609] | 3854 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3855 | }
|
---|
| 3856 |
|
---|
| 3857 |
|
---|
[609] | 3858 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3859 | {
|
---|
| 3860 | if (!viewCell->IsLeaf())
|
---|
| 3861 | {
|
---|
| 3862 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3863 |
|
---|
[609] | 3864 | return bspVc->mLeaf;
|
---|
| 3865 | }
|
---|
[607] | 3866 | else
|
---|
| 3867 | {
|
---|
| 3868 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3869 |
|
---|
| 3870 | // cannot be node of binary tree
|
---|
| 3871 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3872 | return NULL;
|
---|
[607] | 3873 |
|
---|
| 3874 | ViewCell *left = interior->mChildren[0];
|
---|
| 3875 | ViewCell *right = interior->mChildren[1];
|
---|
| 3876 |
|
---|
[609] | 3877 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3878 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3879 |
|
---|
[609] | 3880 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3881 | {
|
---|
[609] | 3882 | return leftNode->GetParent();
|
---|
[607] | 3883 | }
|
---|
[609] | 3884 | }
|
---|
[607] | 3885 |
|
---|
[609] | 3886 | return NULL;
|
---|
[607] | 3887 | }
|
---|
| 3888 |
|
---|
| 3889 |
|
---|
[564] | 3890 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3891 | const ObjectContainer &objects)
|
---|
[503] | 3892 | {
|
---|
[485] | 3893 | Debug << "render time before refine:" << endl;
|
---|
| 3894 | mRenderer->RenderScene();
|
---|
[503] | 3895 | SimulationStatistics ss;
|
---|
[485] | 3896 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3897 | Debug << ss << endl;
|
---|
| 3898 |
|
---|
[489] | 3899 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3900 | long startTime = GetTime();
|
---|
[485] | 3901 |
|
---|
| 3902 | // refining the merged view cells
|
---|
[580] | 3903 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3904 |
|
---|
[442] | 3905 | //-- stats and visualizations
|
---|
| 3906 | cout << "finished" << endl;
|
---|
[485] | 3907 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3908 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3909 |
|
---|
[485] | 3910 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3911 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3912 | }
|
---|
[495] | 3913 |
|
---|
[517] | 3914 |
|
---|
[503] | 3915 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3916 | const VssRayContainer &rays)
|
---|
[840] | 3917 | {
|
---|
[503] | 3918 | if (!ViewCellsConstructed())
|
---|
| 3919 | {
|
---|
[517] | 3920 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3921 | return 0;
|
---|
| 3922 | }
|
---|
[520] | 3923 |
|
---|
[564] | 3924 |
|
---|
[609] | 3925 | // view cells already finished before post processing step
|
---|
| 3926 | // (i.e. because they were loaded)
|
---|
[520] | 3927 | if (mViewCellsFinished)
|
---|
[542] | 3928 | {
|
---|
[551] | 3929 | FinalizeViewCells(true);
|
---|
[542] | 3930 | EvaluateViewCellsStats();
|
---|
[577] | 3931 |
|
---|
[517] | 3932 | return 0;
|
---|
[542] | 3933 | }
|
---|
[448] | 3934 |
|
---|
[710] | 3935 | // check if new view cells turned invalid
|
---|
| 3936 | int minPvs, maxPvs;
|
---|
[564] | 3937 |
|
---|
[710] | 3938 | if (0)
|
---|
| 3939 | {
|
---|
| 3940 | minPvs = mMinPvsSize;
|
---|
| 3941 | maxPvs = mMaxPvsSize;
|
---|
| 3942 | }
|
---|
| 3943 | else
|
---|
| 3944 | {
|
---|
| 3945 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3946 | maxPvs = mMaxPvsSize;
|
---|
| 3947 | }
|
---|
[720] | 3948 |
|
---|
[710] | 3949 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3950 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3951 |
|
---|
| 3952 | SetValidity(minPvs, maxPvs);
|
---|
| 3953 |
|
---|
[574] | 3954 | // update valid view space according to valid view cells
|
---|
[720] | 3955 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3956 |
|
---|
[720] | 3957 | // area has to be recomputed
|
---|
[574] | 3958 | mTotalAreaValid = false;
|
---|
[517] | 3959 | VssRayContainer postProcessRays;
|
---|
[605] | 3960 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3961 |
|
---|
[517] | 3962 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3963 |
|
---|
[517] | 3964 |
|
---|
[552] | 3965 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3966 | // and to correct the rendering statistics
|
---|
[719] | 3967 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3968 |
|
---|
[597] | 3969 | //-- merge the individual view cells
|
---|
| 3970 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3971 |
|
---|
[720] | 3972 |
|
---|
| 3973 | // only for debugging purpose: test if the subdivision is valid
|
---|
[1122] | 3974 | if (0) TestSubdivision();
|
---|
[693] | 3975 |
|
---|
[597] | 3976 | //-- refines the merged view cells
|
---|
[720] | 3977 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3978 |
|
---|
[719] | 3979 |
|
---|
[660] | 3980 | //-- render simulation after merge + refine
|
---|
[605] | 3981 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3982 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3983 | SimulationStatistics ss;
|
---|
| 3984 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3985 |
|
---|
[580] | 3986 |
|
---|
[605] | 3987 | cout << " finished" << endl;
|
---|
| 3988 | cout << ss << endl;
|
---|
| 3989 | Debug << ss << endl;
|
---|
[600] | 3990 |
|
---|
| 3991 |
|
---|
| 3992 | //-- compression
|
---|
| 3993 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3994 | {
|
---|
[1161] | 3995 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 3996 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3997 |
|
---|
[752] | 3998 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3999 |
|
---|
[1161] | 4000 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[600] | 4001 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 4002 | }
|
---|
| 4003 |
|
---|
[660] | 4004 |
|
---|
[517] | 4005 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4006 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4007 |
|
---|
[574] | 4008 | // recompute view cell list and statistics
|
---|
[520] | 4009 | ResetViewCells();
|
---|
| 4010 |
|
---|
[719] | 4011 | // compute final meshes and volume / area
|
---|
| 4012 | if (1) FinalizeViewCells(true);
|
---|
[517] | 4013 |
|
---|
[508] | 4014 | // write view cells to disc
|
---|
| 4015 | if (mExportViewCells)
|
---|
| 4016 | {
|
---|
[840] | 4017 | char filename[100];
|
---|
[1004] | 4018 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 4019 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 4020 | }
|
---|
[517] | 4021 |
|
---|
[840] | 4022 |
|
---|
| 4023 | // export bounding boxes
|
---|
| 4024 | if (mExportBboxesForPvs)
|
---|
| 4025 | {
|
---|
| 4026 | char filename[100];
|
---|
[1004] | 4027 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[850] | 4028 |
|
---|
[840] | 4029 | ExportBoundingBoxes(filename, objects);
|
---|
[508] | 4030 | }
|
---|
[503] | 4031 |
|
---|
| 4032 | return 0;
|
---|
[442] | 4033 | }
|
---|
| 4034 |
|
---|
[490] | 4035 |
|
---|
[442] | 4036 | int VspBspViewCellsManager::GetType() const
|
---|
| 4037 | {
|
---|
| 4038 | return VSP_BSP;
|
---|
| 4039 | }
|
---|
| 4040 |
|
---|
| 4041 |
|
---|
[650] | 4042 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4043 | {
|
---|
[752] | 4044 | // terminate recursion
|
---|
[650] | 4045 | if (root->IsLeaf())
|
---|
| 4046 | {
|
---|
[752] | 4047 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4048 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4049 | return leaf->GetViewCell();
|
---|
[650] | 4050 | }
|
---|
| 4051 |
|
---|
[752] | 4052 |
|
---|
[650] | 4053 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4054 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4055 |
|
---|
[752] | 4056 | // evaluate merge cost for priority traversal
|
---|
[650] | 4057 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4058 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4059 |
|
---|
[650] | 4060 | float volume = 0;
|
---|
| 4061 |
|
---|
| 4062 | BspNode *front = interior->GetFront();
|
---|
| 4063 | BspNode *back = interior->GetBack();
|
---|
[649] | 4064 |
|
---|
[752] | 4065 |
|
---|
| 4066 | ObjectPvs frontPvs, backPvs;
|
---|
| 4067 |
|
---|
| 4068 | //-- recursivly compute child hierarchies
|
---|
[650] | 4069 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4070 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4071 |
|
---|
[752] | 4072 |
|
---|
| 4073 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4074 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4075 |
|
---|
| 4076 | volume += backVc->GetVolume();
|
---|
| 4077 | volume += frontVc->GetVolume();
|
---|
| 4078 |
|
---|
| 4079 | viewCellInterior->SetVolume(volume);
|
---|
| 4080 |
|
---|
| 4081 | return viewCellInterior;
|
---|
[609] | 4082 | }
|
---|
| 4083 |
|
---|
| 4084 |
|
---|
[490] | 4085 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4086 | {
|
---|
| 4087 | if (!ViewCellsConstructed())
|
---|
| 4088 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4089 |
|
---|
| 4090 | // TODO: set reasonable limit
|
---|
| 4091 | const int limit = 20;
|
---|
| 4092 |
|
---|
| 4093 | for (int i = 0; i < limit; ++ i)
|
---|
| 4094 | {
|
---|
[542] | 4095 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4096 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4097 | {
|
---|
| 4098 | return true;
|
---|
| 4099 | }
|
---|
| 4100 | }
|
---|
[997] | 4101 |
|
---|
[490] | 4102 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4103 | return false;
|
---|
| 4104 | }
|
---|
| 4105 |
|
---|
| 4106 |
|
---|
| 4107 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4108 | {
|
---|
[569] | 4109 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4110 | // validy update in preprocessor for all managers)
|
---|
| 4111 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4112 |
|
---|
[569] | 4113 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4114 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4115 | }
|
---|
| 4116 |
|
---|
| 4117 |
|
---|
[442] | 4118 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4119 | const VssRayContainer &sampleRays)
|
---|
[442] | 4120 | {
|
---|
| 4121 | if (!ViewCellsConstructed())
|
---|
| 4122 | return;
|
---|
| 4123 |
|
---|
[485] | 4124 | VssRayContainer visRays;
|
---|
| 4125 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 4126 |
|
---|
[1077] | 4127 | //-- export final view cell partition
|
---|
| 4128 |
|
---|
| 4129 | if (0)
|
---|
[1047] | 4130 | {
|
---|
| 4131 | // hack pvs
|
---|
[1052] | 4132 | //const int savedColorCode = mColorCode;
|
---|
| 4133 | //mColorCode = 1;
|
---|
[801] | 4134 |
|
---|
[1020] | 4135 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4136 |
|
---|
[442] | 4137 | if (exporter)
|
---|
| 4138 | {
|
---|
[580] | 4139 | cout << "exporting view cells after post process ... ";
|
---|
| 4140 |
|
---|
[600] | 4141 | if (0)
|
---|
[542] | 4142 | {
|
---|
[1004] | 4143 | // export view space box
|
---|
[542] | 4144 | exporter->SetWireframe();
|
---|
| 4145 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4146 | exporter->SetFilled();
|
---|
| 4147 | }
|
---|
| 4148 |
|
---|
[1052] | 4149 | Material m;
|
---|
| 4150 |
|
---|
| 4151 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4152 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4153 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4154 |
|
---|
| 4155 | exporter->SetForcedMaterial(m);
|
---|
| 4156 |
|
---|
| 4157 | if (0 && mExportGeometry)
|
---|
[542] | 4158 | {
|
---|
[485] | 4159 | exporter->ExportGeometry(objects);
|
---|
[542] | 4160 | }
|
---|
[489] | 4161 |
|
---|
| 4162 | // export rays
|
---|
[1047] | 4163 | if (0 && mExportRays)
|
---|
[489] | 4164 | {
|
---|
[1052] | 4165 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4166 | }
|
---|
[564] | 4167 |
|
---|
[801] | 4168 | //exporter->SetFilled();
|
---|
[1020] | 4169 |
|
---|
[1006] | 4170 | // HACK: export without clip plane
|
---|
| 4171 | const bool b = mUseClipPlaneForViz;
|
---|
[1052] | 4172 | //mUseClipPlaneForViz = false;
|
---|
[1020] | 4173 |
|
---|
[508] | 4174 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 4175 |
|
---|
[801] | 4176 | mUseClipPlaneForViz = b;
|
---|
[442] | 4177 | delete exporter;
|
---|
[1020] | 4178 |
|
---|
[580] | 4179 | cout << "finished" << endl;
|
---|
[442] | 4180 | }
|
---|
[600] | 4181 |
|
---|
[1052] | 4182 | //mColorCode = savedColorCode;
|
---|
[557] | 4183 | }
|
---|
[503] | 4184 |
|
---|
[1002] | 4185 |
|
---|
[600] | 4186 | if (0)
|
---|
[577] | 4187 | {
|
---|
| 4188 | cout << "exporting depth map ... ";
|
---|
| 4189 |
|
---|
| 4190 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4191 | if (exporter)
|
---|
| 4192 | {
|
---|
| 4193 | if (1)
|
---|
| 4194 | {
|
---|
| 4195 | exporter->SetWireframe();
|
---|
| 4196 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4197 | exporter->SetFilled();
|
---|
| 4198 | }
|
---|
| 4199 |
|
---|
| 4200 | if (mExportGeometry)
|
---|
| 4201 | {
|
---|
| 4202 | exporter->ExportGeometry(objects);
|
---|
| 4203 | }
|
---|
| 4204 |
|
---|
[1143] | 4205 | const int maxDepth = mVspBspTree->GetStatistics().maxDepth;
|
---|
[577] | 4206 |
|
---|
| 4207 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4208 |
|
---|
| 4209 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4210 | {
|
---|
[582] | 4211 | ViewCell *vc = *vit;
|
---|
[577] | 4212 |
|
---|
[580] | 4213 | ViewCellContainer leaves;
|
---|
| 4214 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4215 |
|
---|
[580] | 4216 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4217 |
|
---|
| 4218 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4219 | {
|
---|
[580] | 4220 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4221 |
|
---|
| 4222 | Material m;
|
---|
| 4223 |
|
---|
| 4224 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4225 | m.mDiffuseColor.r = relDepth;
|
---|
| 4226 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4227 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4228 |
|
---|
| 4229 | exporter->SetForcedMaterial(m);
|
---|
| 4230 |
|
---|
| 4231 |
|
---|
| 4232 | BspNodeGeometry geom;
|
---|
| 4233 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4234 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4235 | }
|
---|
| 4236 | }
|
---|
| 4237 |
|
---|
| 4238 | delete exporter;
|
---|
| 4239 | }
|
---|
| 4240 |
|
---|
| 4241 |
|
---|
| 4242 | cout << "finished" << endl;
|
---|
| 4243 | }
|
---|
| 4244 |
|
---|
[442] | 4245 | //-- visualization of the BSP splits
|
---|
| 4246 | bool exportSplits = false;
|
---|
[1004] | 4247 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4248 |
|
---|
[442] | 4249 | if (exportSplits)
|
---|
| 4250 | {
|
---|
| 4251 | cout << "exporting splits ... ";
|
---|
[485] | 4252 | ExportSplits(objects, visRays);
|
---|
[442] | 4253 | cout << "finished" << endl;
|
---|
| 4254 | }
|
---|
| 4255 |
|
---|
[542] | 4256 | //-- export single view cells
|
---|
[485] | 4257 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4258 | }
|
---|
| 4259 |
|
---|
[503] | 4260 |
|
---|
[485] | 4261 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4262 | const VssRayContainer &rays)
|
---|
[442] | 4263 | {
|
---|
| 4264 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4265 |
|
---|
[503] | 4266 | if (exporter)
|
---|
| 4267 | {
|
---|
| 4268 | Material m;
|
---|
[442] | 4269 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4270 | exporter->SetForcedMaterial(m);
|
---|
| 4271 | exporter->SetWireframe();
|
---|
[503] | 4272 |
|
---|
[448] | 4273 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4274 |
|
---|
| 4275 | // take forced material, else big scenes cannot be viewed
|
---|
| 4276 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4277 | exporter->SetForcedMaterial(m);
|
---|
| 4278 | exporter->SetFilled();
|
---|
| 4279 |
|
---|
| 4280 | exporter->ResetForcedMaterial();
|
---|
[503] | 4281 |
|
---|
[442] | 4282 | // export rays
|
---|
[485] | 4283 | if (mExportRays)
|
---|
| 4284 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4285 |
|
---|
[485] | 4286 | if (mExportGeometry)
|
---|
[442] | 4287 | exporter->ExportGeometry(objects);
|
---|
| 4288 |
|
---|
| 4289 | delete exporter;
|
---|
| 4290 | }
|
---|
| 4291 | }
|
---|
| 4292 |
|
---|
[503] | 4293 |
|
---|
[485] | 4294 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4295 | const VssRayContainer &rays)
|
---|
[442] | 4296 | {
|
---|
[1020] | 4297 | int leafOut;
|
---|
| 4298 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[503] | 4299 |
|
---|
[442] | 4300 | ViewCell::NewMail();
|
---|
[503] | 4301 |
|
---|
[639] | 4302 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4303 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4304 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4305 |
|
---|
[694] | 4306 | const bool sortViewCells = true;
|
---|
[1021] | 4307 |
|
---|
[485] | 4308 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4309 | if (sortViewCells)
|
---|
[801] | 4310 | {
|
---|
| 4311 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 4312 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4313 | }
|
---|
| 4314 |
|
---|
[503] | 4315 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4316 |
|
---|
[639] | 4317 | int raysOut = 0;
|
---|
[587] | 4318 |
|
---|
[485] | 4319 | //-- some rays for output
|
---|
[478] | 4320 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4321 | {
|
---|
[478] | 4322 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4323 |
|
---|
[582] | 4324 | ViewCell *vc;
|
---|
[574] | 4325 |
|
---|
[694] | 4326 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4327 | vc = mViewCells[i];
|
---|
[574] | 4328 | else
|
---|
[639] | 4329 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4330 |
|
---|
[801] | 4331 | ObjectPvs pvs;
|
---|
| 4332 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4333 |
|
---|
[639] | 4334 | //bspLeaves[j]->Mail();
|
---|
[1020] | 4335 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
[639] | 4336 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4337 |
|
---|
[1142] | 4338 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 4339 |
|
---|
[801] | 4340 | //-- export the sample rays
|
---|
[1020] | 4341 | if (mExportRays)
|
---|
[442] | 4342 | {
|
---|
[694] | 4343 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 4344 | if (1)
|
---|
[442] | 4345 | {
|
---|
[639] | 4346 | VssRayContainer vcRays;
|
---|
| 4347 | VssRayContainer collectRays;
|
---|
| 4348 |
|
---|
| 4349 | raysOut = min((int)rays.size(), 100);
|
---|
| 4350 |
|
---|
| 4351 | // collect intial view cells
|
---|
| 4352 | ViewCellContainer leaves;
|
---|
| 4353 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4354 |
|
---|
| 4355 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4356 |
|
---|
| 4357 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4358 | {
|
---|
[639] | 4359 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4360 |
|
---|
| 4361 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4362 |
|
---|
[639] | 4363 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4364 | {
|
---|
| 4365 | collectRays.push_back(*rit);
|
---|
| 4366 | }
|
---|
[574] | 4367 | }
|
---|
[639] | 4368 |
|
---|
| 4369 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4370 |
|
---|
| 4371 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4372 | {
|
---|
| 4373 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4374 |
|
---|
| 4375 | if (p < raysOut)
|
---|
| 4376 | vcRays.push_back(*rit);
|
---|
| 4377 | }
|
---|
[801] | 4378 |
|
---|
[1052] | 4379 | //Debug << "#rays: " << (int)vcRays.size() << endl;
|
---|
[1047] | 4380 |
|
---|
[639] | 4381 | //-- export rays piercing this view cell
|
---|
| 4382 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4383 | }
|
---|
[651] | 4384 |
|
---|
[694] | 4385 | // associate new rays with output view cell
|
---|
[1047] | 4386 | if (0)
|
---|
[639] | 4387 | {
|
---|
| 4388 | VssRayContainer vcRays;
|
---|
| 4389 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
[801] | 4390 |
|
---|
[639] | 4391 | // check whether we can add the current ray to the output rays
|
---|
| 4392 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4393 | {
|
---|
| 4394 | VssRay *ray = rays[k];
|
---|
| 4395 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4396 | {
|
---|
| 4397 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4398 |
|
---|
| 4399 | if (rayvc == vc)
|
---|
| 4400 | vcRays.push_back(ray);
|
---|
| 4401 | }
|
---|
| 4402 | }
|
---|
| 4403 |
|
---|
| 4404 | //-- export rays piercing this view cell
|
---|
| 4405 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4406 | }
|
---|
| 4407 |
|
---|
[442] | 4408 | }
|
---|
[639] | 4409 |
|
---|
[574] | 4410 |
|
---|
[1020] | 4411 | //-- export view cell geometry
|
---|
[478] | 4412 | exporter->SetWireframe();
|
---|
[442] | 4413 |
|
---|
[478] | 4414 | Material m;//= RandomMaterial();
|
---|
| 4415 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4416 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4417 |
|
---|
[580] | 4418 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 4419 |
|
---|
| 4420 | exporter->SetFilled();
|
---|
[503] | 4421 |
|
---|
[1020] | 4422 |
|
---|
[801] | 4423 | //-- export pvs
|
---|
[574] | 4424 | if (1)
|
---|
| 4425 | {
|
---|
[639] | 4426 | ObjectPvsMap::const_iterator oit,
|
---|
[801] | 4427 | oit_end = pvs.mEntries.end();
|
---|
[483] | 4428 |
|
---|
[801] | 4429 | Intersectable::NewMail();
|
---|
[580] | 4430 |
|
---|
[639] | 4431 | // output PVS of view cell
|
---|
[801] | 4432 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4433 | {
|
---|
| 4434 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4435 |
|
---|
[639] | 4436 | if (!intersect->Mailed())
|
---|
| 4437 | {
|
---|
[643] | 4438 | m = RandomMaterial();
|
---|
| 4439 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4440 |
|
---|
[639] | 4441 | exporter->ExportIntersectable(intersect);
|
---|
| 4442 | intersect->Mail();
|
---|
| 4443 | }
|
---|
[503] | 4444 | }
|
---|
[442] | 4445 | }
|
---|
[801] | 4446 |
|
---|
| 4447 | if (0)
|
---|
| 4448 | { // export scene geometry
|
---|
[643] | 4449 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4450 | exporter->SetForcedMaterial(m);
|
---|
| 4451 |
|
---|
[639] | 4452 | exporter->ExportGeometry(objects);
|
---|
| 4453 | }
|
---|
[503] | 4454 |
|
---|
[478] | 4455 | DEL_PTR(exporter);
|
---|
| 4456 | cout << "finished" << endl;
|
---|
[442] | 4457 | }
|
---|
[475] | 4458 |
|
---|
| 4459 | Debug << endl;
|
---|
[442] | 4460 | }
|
---|
| 4461 |
|
---|
| 4462 |
|
---|
[1021] | 4463 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4464 | {
|
---|
[1021] | 4465 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4466 |
|
---|
[1021] | 4467 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4468 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4469 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4470 | const Vector3 width = Vector3(w);
|
---|
| 4471 |
|
---|
| 4472 | PrVs testPrVs;
|
---|
| 4473 |
|
---|
| 4474 | if (exporter)
|
---|
| 4475 | {
|
---|
| 4476 | ViewCellContainer viewCells;
|
---|
| 4477 |
|
---|
| 4478 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4479 |
|
---|
[1021] | 4480 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4481 |
|
---|
[1021] | 4482 | exporter->SetWireframe();
|
---|
[482] | 4483 |
|
---|
[1021] | 4484 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4485 | exporter->ExportBox(tbox);
|
---|
| 4486 |
|
---|
| 4487 | exporter->SetFilled();
|
---|
[503] | 4488 |
|
---|
[1021] | 4489 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
| 4490 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
[564] | 4491 |
|
---|
[1021] | 4492 | //exporter->ResetForcedMaterial();
|
---|
| 4493 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
| 4494 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
[591] | 4495 |
|
---|
[1021] | 4496 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4497 | exporter->ExportGeometry(objects);
|
---|
[547] | 4498 |
|
---|
[1021] | 4499 | delete exporter;
|
---|
[482] | 4500 | }
|
---|
[1021] | 4501 | }
|
---|
[482] | 4502 |
|
---|
[547] | 4503 |
|
---|
[1021] | 4504 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4505 | ViewCellContainer &viewCells) const
|
---|
| 4506 | {
|
---|
| 4507 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4508 | }
|
---|
| 4509 |
|
---|
| 4510 |
|
---|
[1021] | 4511 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4512 | const Vector3 &termination,
|
---|
| 4513 | ViewCellContainer &viewcells)
|
---|
| 4514 | {
|
---|
| 4515 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4516 | }
|
---|
| 4517 |
|
---|
| 4518 |
|
---|
[979] | 4519 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4520 | {
|
---|
| 4521 | int numSamples;
|
---|
[1161] | 4522 |
|
---|
[1004] | 4523 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4524 | cout << "samples" << numSamples << endl;
|
---|
| 4525 |
|
---|
| 4526 | vector<RenderCostSample> samples;
|
---|
| 4527 |
|
---|
[1145] | 4528 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4529 | return;
|
---|
| 4530 |
|
---|
[1145] | 4531 | //start the view point queries
|
---|
[979] | 4532 | long startTime = GetTime();
|
---|
| 4533 | cout << "starting sampling of render cost ... ";
|
---|
| 4534 |
|
---|
[1145] | 4535 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4536 |
|
---|
| 4537 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4538 |
|
---|
| 4539 |
|
---|
[1161] | 4540 | // for each sample:
|
---|
| 4541 | // find view cells associated with the samples
|
---|
| 4542 | // store the sample pvs with the pvs associated with the view cell
|
---|
| 4543 | // for each view cell:
|
---|
| 4544 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4545 | // export geometry with color coded pvs difference
|
---|
| 4546 |
|
---|
| 4547 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4548 |
|
---|
[979] | 4549 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4550 |
|
---|
[1161] | 4551 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4552 | {
|
---|
| 4553 | RenderCostSample sample = *rit;
|
---|
| 4554 |
|
---|
| 4555 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4556 |
|
---|
[1161] | 4557 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4558 |
|
---|
| 4559 | if (it == sampleMap.end())
|
---|
| 4560 | {
|
---|
| 4561 | sampleMap[vc] = sample.mPvs;
|
---|
| 4562 | }
|
---|
| 4563 | else
|
---|
| 4564 | {
|
---|
| 4565 | (*it).second.Merge(sample.mPvs);
|
---|
| 4566 | }
|
---|
| 4567 | }
|
---|
| 4568 |
|
---|
| 4569 | // visualize the view cells
|
---|
| 4570 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4571 |
|
---|
| 4572 | Material m;//= RandomMaterial();
|
---|
| 4573 |
|
---|
| 4574 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4575 | {
|
---|
| 4576 | ViewCell *vc = (*vit).first;
|
---|
| 4577 |
|
---|
| 4578 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4579 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4580 |
|
---|
[1168] | 4581 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4582 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4583 | //exporter->SetForcedMaterial(m);
|
---|
| 4584 |
|
---|
| 4585 | // ExportViewCellGeometry(exporter, vc, mClipPlane);
|
---|
| 4586 |
|
---|
| 4587 | /* // counting the pvss
|
---|
[979] | 4588 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4589 | {
|
---|
| 4590 | RenderCostSample sample = *rit;
|
---|
[1001] | 4591 |
|
---|
[991] | 4592 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
| 4593 |
|
---|
| 4594 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4595 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
| 4596 |
|
---|
| 4597 | DEL_PTR(hMesh);
|
---|
[1161] | 4598 |
|
---|
| 4599 | */
|
---|
[979] | 4600 | }
|
---|
| 4601 | }
|
---|
| 4602 |
|
---|
| 4603 |
|
---|
[580] | 4604 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4605 | ViewCell *vc,
|
---|
[1047] | 4606 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 4607 | {
|
---|
[660] | 4608 | if (clipPlane)
|
---|
[591] | 4609 | {
|
---|
[1047] | 4610 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4611 |
|
---|
[591] | 4612 | ViewCellContainer leaves;
|
---|
| 4613 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4614 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4615 |
|
---|
| 4616 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4617 | {
|
---|
| 4618 | BspNodeGeometry geom;
|
---|
| 4619 |
|
---|
| 4620 | BspNodeGeometry front;
|
---|
| 4621 | BspNodeGeometry back;
|
---|
| 4622 |
|
---|
| 4623 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4624 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4625 |
|
---|
[1052] | 4626 | const float eps = 0.0001f;
|
---|
[1047] | 4627 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4628 |
|
---|
[710] | 4629 | if (cf == -1)
|
---|
[682] | 4630 | {
|
---|
| 4631 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4632 | }
|
---|
[710] | 4633 | else if (cf == 0)
|
---|
[684] | 4634 | {
|
---|
[682] | 4635 | geom.SplitGeometry(front,
|
---|
| 4636 | back,
|
---|
[1047] | 4637 | plane,
|
---|
[682] | 4638 | mViewSpaceBox,
|
---|
[710] | 4639 | eps);
|
---|
[682] | 4640 |
|
---|
[694] | 4641 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4642 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[801] | 4643 |
|
---|
[683] | 4644 | if (back.Valid())
|
---|
| 4645 | {
|
---|
[682] | 4646 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4647 | }
|
---|
[684] | 4648 | }
|
---|
[591] | 4649 | }
|
---|
| 4650 | }
|
---|
| 4651 | else
|
---|
| 4652 | {
|
---|
[801] | 4653 | // export mesh if available
|
---|
[1001] | 4654 | // TODO: some bug here?
|
---|
| 4655 | if (0 && vc->GetMesh())
|
---|
[801] | 4656 | {
|
---|
| 4657 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4658 | }
|
---|
| 4659 | else
|
---|
[1001] | 4660 | {
|
---|
[801] | 4661 | BspNodeGeometry geom;
|
---|
| 4662 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4663 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4664 | }
|
---|
[591] | 4665 | }
|
---|
[482] | 4666 | }
|
---|
| 4667 |
|
---|
| 4668 |
|
---|
| 4669 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4670 | {
|
---|
[580] | 4671 | ViewCellContainer leaves;
|
---|
| 4672 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4673 |
|
---|
| 4674 | int maxDist = 0;
|
---|
[580] | 4675 |
|
---|
[482] | 4676 | // compute max height difference
|
---|
[580] | 4677 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4678 | {
|
---|
[580] | 4679 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4680 | {
|
---|
| 4681 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4682 |
|
---|
[1001] | 4683 | if (i != j)
|
---|
| 4684 | {
|
---|
| 4685 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
| 4686 |
|
---|
| 4687 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4688 |
|
---|
| 4689 | if (dist > maxDist)
|
---|
| 4690 | maxDist = dist;
|
---|
| 4691 | }
|
---|
[482] | 4692 | }
|
---|
| 4693 | }
|
---|
[580] | 4694 |
|
---|
[492] | 4695 | return maxDist;
|
---|
| 4696 | }
|
---|
[482] | 4697 |
|
---|
[492] | 4698 |
|
---|
[879] | 4699 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4700 | {
|
---|
[1021] | 4701 | if (!ViewCellsConstructed())
|
---|
[508] | 4702 | return NULL;
|
---|
[572] | 4703 |
|
---|
| 4704 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4705 | return NULL;
|
---|
| 4706 |
|
---|
[879] | 4707 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4708 | }
|
---|
[503] | 4709 |
|
---|
| 4710 |
|
---|
| 4711 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4712 | {
|
---|
[726] | 4713 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4714 | BspNodeGeometry geom;
|
---|
[590] | 4715 |
|
---|
| 4716 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4717 |
|
---|
[1001] | 4718 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4719 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4720 |
|
---|
[503] | 4721 | vc->SetMesh(mesh);
|
---|
| 4722 | }
|
---|
[508] | 4723 |
|
---|
| 4724 |
|
---|
[532] | 4725 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4726 | {
|
---|
[535] | 4727 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4728 | }
|
---|
[551] | 4729 |
|
---|
| 4730 |
|
---|
[587] | 4731 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4732 | const bool createMesh)
|
---|
[551] | 4733 | {
|
---|
| 4734 | float area = 0;
|
---|
| 4735 | float volume = 0;
|
---|
| 4736 |
|
---|
[580] | 4737 | ViewCellContainer leaves;
|
---|
[582] | 4738 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4739 |
|
---|
| 4740 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4741 |
|
---|
[693] | 4742 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4743 | {
|
---|
| 4744 | BspNodeGeometry geom;
|
---|
[580] | 4745 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4746 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4747 |
|
---|
[719] | 4748 | const float lVol = geom.GetVolume();
|
---|
| 4749 | const float lArea = geom.GetArea();
|
---|
[693] | 4750 |
|
---|
| 4751 | //(*it)->SetVolume(vol);
|
---|
| 4752 | //(*it)->SetArea(area);
|
---|
| 4753 |
|
---|
| 4754 | area += lArea;
|
---|
| 4755 | volume += lVol;
|
---|
| 4756 |
|
---|
| 4757 | CreateMesh(*it);
|
---|
[551] | 4758 | }
|
---|
| 4759 |
|
---|
| 4760 | viewCell->SetVolume(volume);
|
---|
| 4761 | viewCell->SetArea(area);
|
---|
[563] | 4762 | }
|
---|
[575] | 4763 |
|
---|
| 4764 |
|
---|
[693] | 4765 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4766 | {
|
---|
| 4767 | ViewCellContainer leaves;
|
---|
| 4768 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4769 |
|
---|
| 4770 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4771 |
|
---|
| 4772 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4773 | float subdivVol = 0;
|
---|
| 4774 | float newVol = 0;
|
---|
| 4775 |
|
---|
| 4776 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4777 | {
|
---|
| 4778 | BspNodeGeometry geom;
|
---|
| 4779 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4780 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4781 |
|
---|
| 4782 | const float lVol = geom.GetVolume();
|
---|
| 4783 |
|
---|
| 4784 | newVol += lVol;
|
---|
| 4785 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4786 |
|
---|
[704] | 4787 | float thres = 0.9f;
|
---|
[697] | 4788 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4789 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4790 | }
|
---|
| 4791 |
|
---|
| 4792 | Debug << "exact volume: " << vol << endl;
|
---|
| 4793 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4794 | Debug << "new volume: " << newVol << endl;
|
---|
| 4795 | }
|
---|
| 4796 |
|
---|
| 4797 |
|
---|
[577] | 4798 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4799 | {
|
---|
| 4800 | // TODO: do I still need this here?
|
---|
[590] | 4801 | if (0)
|
---|
[693] | 4802 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4803 | }
|
---|
[575] | 4804 |
|
---|
[1021] | 4805 |
|
---|
| 4806 |
|
---|
| 4807 | /**************************************************************************/
|
---|
[1047] | 4808 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4809 | /**************************************************************************/
|
---|
| 4810 |
|
---|
| 4811 |
|
---|
| 4812 | VspOspViewCellsManager::VspOspViewCellsManager(VspTree *vspTree, OspTree *ospTree):
|
---|
| 4813 | ViewCellsManager(), mVspTree(vspTree), mOspTree(ospTree)
|
---|
[859] | 4814 | {
|
---|
[1027] | 4815 | mHierarchyManager = new HierarchyManager(*vspTree, *ospTree);
|
---|
| 4816 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
[1106] | 4817 |
|
---|
[1021] | 4818 | mVspTree->SetViewCellsManager(this);
|
---|
[1106] | 4819 | mOspTree->SetViewCellsManager(this);
|
---|
| 4820 |
|
---|
[1184] | 4821 | mVspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 4822 | }
|
---|
[859] | 4823 |
|
---|
| 4824 |
|
---|
[1021] | 4825 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4826 | {
|
---|
[1027] | 4827 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 4828 | }
|
---|
| 4829 |
|
---|
| 4830 |
|
---|
| 4831 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4832 | {
|
---|
| 4833 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4834 | }
|
---|
| 4835 |
|
---|
| 4836 |
|
---|
| 4837 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4838 | {
|
---|
| 4839 | // view cells tree constructed
|
---|
| 4840 | if (!ViewCellsTreeConstructed())
|
---|
| 4841 | {
|
---|
| 4842 | mVspTree->CollectViewCells(mViewCells, false);
|
---|
| 4843 | }
|
---|
| 4844 | else
|
---|
| 4845 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4846 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4847 | }
|
---|
| 4848 | }
|
---|
| 4849 |
|
---|
| 4850 |
|
---|
| 4851 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4852 | {
|
---|
| 4853 | return mVspTree->GetRoot() != NULL;
|
---|
| 4854 | }
|
---|
| 4855 |
|
---|
| 4856 |
|
---|
| 4857 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4858 | {
|
---|
| 4859 | return new VspViewCell(mesh);
|
---|
| 4860 | }
|
---|
| 4861 |
|
---|
| 4862 |
|
---|
| 4863 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4864 | const VssRayContainer &rays)
|
---|
| 4865 | {
|
---|
| 4866 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4867 |
|
---|
[1074] | 4868 | // skip rest if view cells were already constructed
|
---|
[1021] | 4869 | if (ViewCellsConstructed())
|
---|
| 4870 | return 0;
|
---|
| 4871 |
|
---|
| 4872 | int sampleContributions = 0;
|
---|
| 4873 |
|
---|
| 4874 | VssRayContainer sampleRays;
|
---|
| 4875 |
|
---|
| 4876 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4877 |
|
---|
| 4878 | VssRayContainer constructionRays;
|
---|
| 4879 | VssRayContainer savedRays;
|
---|
| 4880 |
|
---|
| 4881 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4882 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4883 |
|
---|
| 4884 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4885 |
|
---|
| 4886 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
| 4887 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4888 |
|
---|
| 4889 | long startTime;
|
---|
[1179] | 4890 |
|
---|
[1176] | 4891 | //mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
| 4892 | mHierarchyManager->Construct2(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 4893 |
|
---|
[1178] | 4894 | VssRayContainer::const_iterator vit, vit_end = constructionRays.end();
|
---|
[1180] | 4895 |
|
---|
[1178] | 4896 | for (vit = constructionRays.begin(); vit != vit_end; ++ vit)
|
---|
| 4897 | {
|
---|
| 4898 | storedRays.push_back(new VssRay(*(*vit)));
|
---|
| 4899 | }
|
---|
[1176] | 4900 |
|
---|
[1143] | 4901 | // print subdivision statistics
|
---|
[1021] | 4902 | Debug << mVspTree->GetStatistics() << endl;
|
---|
[1145] | 4903 | Debug << mOspTree->GetStatistics() << endl;
|
---|
[1021] | 4904 |
|
---|
[1201] | 4905 | OUT_STREAM stream("osptree.xml.zip");
|
---|
| 4906 | mOspTree->Export(stream);
|
---|
| 4907 |
|
---|
[1143] | 4908 | // print view cell statistics
|
---|
[1021] | 4909 | ResetViewCells();
|
---|
| 4910 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4911 |
|
---|
| 4912 |
|
---|
| 4913 | startTime = GetTime();
|
---|
| 4914 |
|
---|
| 4915 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4916 |
|
---|
| 4917 | // recast rest of rays
|
---|
| 4918 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4919 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4920 |
|
---|
| 4921 | cout << "finished" << endl;
|
---|
| 4922 |
|
---|
| 4923 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4924 | << " secs" << endl;
|
---|
| 4925 |
|
---|
| 4926 | cout << "construction finished" << endl;
|
---|
| 4927 |
|
---|
| 4928 | // real meshes are contructed at this stage
|
---|
| 4929 | if (0)
|
---|
| 4930 | {
|
---|
| 4931 | cout << "finalizing view cells ... ";
|
---|
| 4932 | FinalizeViewCells(true);
|
---|
| 4933 | cout << "finished" << endl;
|
---|
| 4934 | }
|
---|
| 4935 |
|
---|
| 4936 | return sampleContributions;
|
---|
| 4937 | }
|
---|
| 4938 |
|
---|
| 4939 |
|
---|
| 4940 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4941 | const VssRayContainer &rays)
|
---|
| 4942 | {
|
---|
| 4943 | if (!ViewCellsConstructed())
|
---|
| 4944 | {
|
---|
| 4945 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 4946 | return 0;
|
---|
| 4947 | }
|
---|
| 4948 |
|
---|
| 4949 |
|
---|
[1027] | 4950 | // take this step only if
|
---|
| 4951 | // view cells already constructed before post processing step
|
---|
| 4952 | // (e.g., because they were loaded)
|
---|
[1021] | 4953 | if (mViewCellsFinished)
|
---|
| 4954 | {
|
---|
| 4955 | FinalizeViewCells(true);
|
---|
| 4956 | EvaluateViewCellsStats();
|
---|
| 4957 |
|
---|
| 4958 | return 0;
|
---|
| 4959 | }
|
---|
| 4960 |
|
---|
| 4961 | // check if new view cells turned invalid
|
---|
| 4962 | int minPvs, maxPvs;
|
---|
| 4963 |
|
---|
| 4964 | if (0)
|
---|
| 4965 | {
|
---|
| 4966 | minPvs = mMinPvsSize;
|
---|
| 4967 | maxPvs = mMaxPvsSize;
|
---|
| 4968 | }
|
---|
| 4969 | else
|
---|
| 4970 | {
|
---|
| 4971 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 4972 | maxPvs = mMaxPvsSize;
|
---|
| 4973 | }
|
---|
| 4974 |
|
---|
| 4975 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4976 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4977 |
|
---|
| 4978 | SetValidity(minPvs, maxPvs);
|
---|
| 4979 |
|
---|
| 4980 |
|
---|
| 4981 | // area has to be recomputed
|
---|
| 4982 | mTotalAreaValid = false;
|
---|
| 4983 | VssRayContainer postProcessRays;
|
---|
| 4984 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4985 |
|
---|
| 4986 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 4987 |
|
---|
| 4988 |
|
---|
| 4989 | // should maybe be done here to allow merge working with area or volume
|
---|
| 4990 | // and to correct the rendering statistics
|
---|
| 4991 | if (0) FinalizeViewCells(false);
|
---|
| 4992 |
|
---|
| 4993 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4994 | ViewCell *root = ConstructSpatialMergeTree(mVspTree->GetRoot());
|
---|
| 4995 | mViewCellsTree->SetRoot(root);
|
---|
| 4996 |
|
---|
| 4997 | // compute pvs
|
---|
| 4998 | ObjectPvs pvs;
|
---|
| 4999 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5000 |
|
---|
| 5001 |
|
---|
| 5002 | //-- render simulation after merge + refine
|
---|
| 5003 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 5004 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5005 | SimulationStatistics ss;
|
---|
| 5006 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[859] | 5007 |
|
---|
| 5008 |
|
---|
[1021] | 5009 | cout << " finished" << endl;
|
---|
| 5010 | cout << ss << endl;
|
---|
| 5011 | Debug << ss << endl;
|
---|
[859] | 5012 |
|
---|
| 5013 |
|
---|
[1021] | 5014 | //-- compression
|
---|
[1262] | 5015 |
|
---|
[1021] | 5016 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 5017 | {
|
---|
[1161] | 5018 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 5019 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 5020 |
|
---|
[1021] | 5021 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 5022 |
|
---|
[1161] | 5023 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
[1021] | 5024 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5025 | }
|
---|
[1021] | 5026 |
|
---|
| 5027 | // compute final meshes and volume / area
|
---|
| 5028 | if (1) FinalizeViewCells(true);
|
---|
| 5029 |
|
---|
| 5030 | // write view cells to disc
|
---|
| 5031 | if (mExportViewCells)
|
---|
| 5032 | {
|
---|
| 5033 | char filename[100];
|
---|
| 5034 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 5035 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 5036 | }
|
---|
| 5037 |
|
---|
| 5038 |
|
---|
| 5039 | return 0;
|
---|
[859] | 5040 | }
|
---|
| 5041 |
|
---|
[1021] | 5042 |
|
---|
| 5043 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5044 | {
|
---|
[1021] | 5045 | return VSP_OSP;
|
---|
| 5046 | }
|
---|
[859] | 5047 |
|
---|
[1021] | 5048 |
|
---|
| 5049 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5050 | {
|
---|
| 5051 | // terminate recursion
|
---|
| 5052 | if (root->IsLeaf())
|
---|
| 5053 | {
|
---|
| 5054 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5055 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5056 | return leaf->GetViewCell();
|
---|
| 5057 | }
|
---|
| 5058 |
|
---|
| 5059 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5060 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5061 |
|
---|
| 5062 | // evaluate merge cost for priority traversal
|
---|
| 5063 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 5064 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5065 |
|
---|
| 5066 | float volume = 0;
|
---|
| 5067 |
|
---|
| 5068 | VspNode *front = interior->GetFront();
|
---|
| 5069 | VspNode *back = interior->GetBack();
|
---|
| 5070 |
|
---|
| 5071 |
|
---|
| 5072 | ObjectPvs frontPvs, backPvs;
|
---|
| 5073 |
|
---|
| 5074 | //-- recursivly compute child hierarchies
|
---|
| 5075 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5076 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5077 |
|
---|
| 5078 |
|
---|
| 5079 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5080 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5081 |
|
---|
| 5082 | volume += backVc->GetVolume();
|
---|
| 5083 | volume += frontVc->GetVolume();
|
---|
| 5084 |
|
---|
| 5085 | viewCellInterior->SetVolume(volume);
|
---|
| 5086 |
|
---|
| 5087 | return viewCellInterior;
|
---|
| 5088 | }
|
---|
| 5089 |
|
---|
| 5090 |
|
---|
| 5091 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5092 | {
|
---|
| 5093 | if (!ViewCellsConstructed())
|
---|
| 5094 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5095 |
|
---|
| 5096 | // TODO: set reasonable limit
|
---|
| 5097 | const int limit = 20;
|
---|
| 5098 |
|
---|
| 5099 | for (int i = 0; i < limit; ++ i)
|
---|
| 5100 | {
|
---|
| 5101 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5102 |
|
---|
[1021] | 5103 | if (mVspTree->ViewPointValid(viewPoint))
|
---|
| 5104 | {
|
---|
| 5105 | return true;
|
---|
| 5106 | }
|
---|
[904] | 5107 | }
|
---|
[859] | 5108 |
|
---|
[1021] | 5109 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5110 | return false;
|
---|
[884] | 5111 | }
|
---|
| 5112 |
|
---|
| 5113 |
|
---|
[1027] | 5114 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5115 | ViewCell *vc,
|
---|
[1047] | 5116 | const AxisAlignedPlane *clipPlane) const
|
---|
[1027] | 5117 | {
|
---|
| 5118 | ViewCellContainer leaves;
|
---|
| 5119 |
|
---|
| 5120 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5121 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5122 |
|
---|
[1047] | 5123 | Plane3 plane;
|
---|
| 5124 |
|
---|
| 5125 | if (clipPlane)
|
---|
| 5126 | plane = clipPlane->GetPlane();
|
---|
| 5127 |
|
---|
[1027] | 5128 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5129 | {
|
---|
| 5130 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
| 5131 | VspLeaf *l = vspVc->mLeaf;
|
---|
| 5132 |
|
---|
[1144] | 5133 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(vspVc->mLeaf);
|
---|
[1047] | 5134 |
|
---|
| 5135 | if (clipPlane)
|
---|
| 5136 | {
|
---|
| 5137 | if (box.Side(plane) == -1)
|
---|
[1144] | 5138 | {
|
---|
[1047] | 5139 | exporter->ExportBox(box);
|
---|
[1144] | 5140 | }
|
---|
[1047] | 5141 | else if (box.Side(plane) == 0)
|
---|
| 5142 | {
|
---|
| 5143 | AxisAlignedBox3 fbox, bbox;
|
---|
| 5144 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
| 5145 |
|
---|
| 5146 | exporter->ExportBox(bbox);
|
---|
| 5147 | }
|
---|
| 5148 | }
|
---|
| 5149 | else
|
---|
| 5150 | {
|
---|
[1027] | 5151 | exporter->ExportBox(box);
|
---|
[1047] | 5152 | }
|
---|
[1027] | 5153 | }
|
---|
| 5154 | }
|
---|
| 5155 |
|
---|
| 5156 |
|
---|
[1021] | 5157 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5158 | {
|
---|
| 5159 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5160 | // validy update in preprocessor for all managers)
|
---|
| 5161 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5162 |
|
---|
[1021] | 5163 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5164 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5165 | }
|
---|
| 5166 |
|
---|
| 5167 |
|
---|
| 5168 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5169 | const VssRayContainer &sampleRays)
|
---|
[859] | 5170 | {
|
---|
[997] | 5171 | if (!ViewCellsConstructed())
|
---|
| 5172 | return;
|
---|
[1027] | 5173 |
|
---|
[1021] | 5174 | VssRayContainer visRays;
|
---|
| 5175 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5176 |
|
---|
[1021] | 5177 | if (1)
|
---|
[1047] | 5178 | {
|
---|
[1106] | 5179 | //-- export final view cells
|
---|
| 5180 |
|
---|
[1047] | 5181 | // hack pvs
|
---|
[1021] | 5182 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5183 | mColorCode = 0;
|
---|
[1021] | 5184 |
|
---|
| 5185 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5186 |
|
---|
| 5187 | if (exporter)
|
---|
| 5188 | {
|
---|
| 5189 | cout << "exporting view cells after post process ... ";
|
---|
[859] | 5190 |
|
---|
[1021] | 5191 | if (0)
|
---|
| 5192 | {
|
---|
| 5193 | // export view space box
|
---|
| 5194 | exporter->SetWireframe();
|
---|
| 5195 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 5196 | exporter->SetFilled();
|
---|
| 5197 | }
|
---|
[859] | 5198 |
|
---|
[1021] | 5199 | if (mExportGeometry)
|
---|
| 5200 | {
|
---|
| 5201 | exporter->ExportGeometry(objects);
|
---|
| 5202 | }
|
---|
[859] | 5203 |
|
---|
[1021] | 5204 | // export rays
|
---|
[1072] | 5205 | if (0 && mExportRays)
|
---|
[1021] | 5206 | {
|
---|
| 5207 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5208 | }
|
---|
| 5209 |
|
---|
| 5210 | //exporter->SetFilled();
|
---|
| 5211 |
|
---|
| 5212 | // HACK: export without clip plane
|
---|
[1052] | 5213 | const bool b = mUseClipPlaneForViz;
|
---|
[1106] | 5214 | if (0) mUseClipPlaneForViz = false;
|
---|
[1021] | 5215 |
|
---|
| 5216 | ExportViewCellsForViz(exporter);
|
---|
| 5217 |
|
---|
[1052] | 5218 | mUseClipPlaneForViz = b;
|
---|
[1021] | 5219 | delete exporter;
|
---|
| 5220 |
|
---|
| 5221 | cout << "finished" << endl;
|
---|
| 5222 | }
|
---|
| 5223 |
|
---|
| 5224 | mColorCode = savedColorCode;
|
---|
| 5225 | }
|
---|
| 5226 |
|
---|
[1142] | 5227 | if (1 && mOspTree->GetRoot())
|
---|
[1106] | 5228 | {
|
---|
| 5229 | //-- export final object partition
|
---|
| 5230 | Exporter *exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5231 |
|
---|
| 5232 | if (exporter)
|
---|
| 5233 | {
|
---|
| 5234 | cout << "exporting object space partition ... ";
|
---|
| 5235 |
|
---|
[1107] | 5236 | if (0 && mExportGeometry)
|
---|
[1106] | 5237 | {
|
---|
| 5238 | exporter->ExportGeometry(objects);
|
---|
| 5239 | }
|
---|
| 5240 |
|
---|
| 5241 | // export rays
|
---|
| 5242 | if (0 && mExportRays)
|
---|
| 5243 | {
|
---|
| 5244 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5245 | }
|
---|
| 5246 |
|
---|
| 5247 | exporter->SetWireframe();
|
---|
[1121] | 5248 |
|
---|
| 5249 | const int savedColorCode = mColorCode;
|
---|
[1145] | 5250 | mColorCode = 0;
|
---|
[1121] | 5251 | const int maxPvs = 200;//mOspTree.GetStatistics().maxPvs;
|
---|
[1106] | 5252 |
|
---|
[1121] | 5253 | exporter->ExportOspTree(*mOspTree, mColorCode == 0 ? 0 : maxPvs);
|
---|
| 5254 |
|
---|
[1145] | 5255 | mColorCode = savedColorCode;
|
---|
| 5256 |
|
---|
[1106] | 5257 | delete exporter;
|
---|
| 5258 |
|
---|
| 5259 | cout << "finished" << endl;
|
---|
| 5260 | }
|
---|
| 5261 | }
|
---|
| 5262 |
|
---|
[1021] | 5263 | //-- export single view cells
|
---|
[1074] | 5264 | ExportPvs(objects, visRays);
|
---|
[859] | 5265 | }
|
---|
| 5266 |
|
---|
[1021] | 5267 |
|
---|
[1074] | 5268 | void VspOspViewCellsManager::ExportPvs(const ObjectContainer &objects,
|
---|
| 5269 | const VssRayContainer &rays)
|
---|
[697] | 5270 | {
|
---|
[1021] | 5271 | int leafOut;
|
---|
| 5272 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[580] | 5273 |
|
---|
[1021] | 5274 | ViewCell::NewMail();
|
---|
| 5275 |
|
---|
| 5276 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5277 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5278 | Debug << "\nOutput view cells: " << endl;
|
---|
| 5279 |
|
---|
| 5280 | const bool sortViewCells = true;
|
---|
| 5281 |
|
---|
| 5282 | // sort view cells to visualize the largest view cells
|
---|
| 5283 | if (sortViewCells)
|
---|
[697] | 5284 | {
|
---|
[1021] | 5285 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 5286 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5287 | }
|
---|
| 5288 |
|
---|
| 5289 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 5290 |
|
---|
| 5291 | int raysOut = 0;
|
---|
| 5292 |
|
---|
[1178] | 5293 |
|
---|
[1021] | 5294 | //-- some rays for output
|
---|
[1178] | 5295 |
|
---|
[1021] | 5296 | for (int i = 0; i < limit; ++ i)
|
---|
| 5297 | {
|
---|
| 5298 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 5299 |
|
---|
| 5300 | ViewCell *vc;
|
---|
[704] | 5301 |
|
---|
[1021] | 5302 | if (sortViewCells) // largest view cell pvs first
|
---|
| 5303 | vc = mViewCells[i];
|
---|
[1074] | 5304 | else // random view cell
|
---|
[1021] | 5305 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[704] | 5306 |
|
---|
[1021] | 5307 | ObjectPvs pvs;
|
---|
| 5308 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5309 |
|
---|
[1021] | 5310 | //bspLeaves[j]->Mail();
|
---|
| 5311 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
| 5312 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5313 |
|
---|
[1142] | 5314 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[1021] | 5315 |
|
---|
| 5316 | //-- export the sample rays
|
---|
[1074] | 5317 | if (1 || mExportRays)
|
---|
[1021] | 5318 | {
|
---|
| 5319 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 5320 | if (1)
|
---|
[1021] | 5321 | {
|
---|
| 5322 | VssRayContainer vcRays;
|
---|
| 5323 | VssRayContainer collectRays;
|
---|
| 5324 |
|
---|
| 5325 | raysOut = min((int)rays.size(), 100);
|
---|
| 5326 |
|
---|
| 5327 | // collect intial view cells
|
---|
| 5328 | ViewCellContainer leaves;
|
---|
| 5329 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5330 |
|
---|
| 5331 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5332 |
|
---|
| 5333 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5334 | {
|
---|
[1047] | 5335 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
|
---|
[1021] | 5336 |
|
---|
| 5337 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5338 |
|
---|
| 5339 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5340 | {
|
---|
| 5341 | collectRays.push_back(*rit);
|
---|
| 5342 | }
|
---|
| 5343 | }
|
---|
| 5344 |
|
---|
| 5345 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 5346 |
|
---|
| 5347 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5348 | {
|
---|
| 5349 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5350 |
|
---|
| 5351 | if (p < raysOut)
|
---|
| 5352 | vcRays.push_back(*rit);
|
---|
| 5353 | }
|
---|
| 5354 |
|
---|
| 5355 | //-- export rays piercing this view cell
|
---|
| 5356 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
| 5357 | }
|
---|
| 5358 |
|
---|
| 5359 | // associate new rays with output view cell
|
---|
[1047] | 5360 | if (0)
|
---|
[1021] | 5361 | {
|
---|
| 5362 | VssRayContainer vcRays;
|
---|
| 5363 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 5364 |
|
---|
| 5365 | // check whether we can add the current ray to the output rays
|
---|
| 5366 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 5367 | {
|
---|
| 5368 | VssRay *ray = rays[k];
|
---|
| 5369 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 5370 | {
|
---|
| 5371 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 5372 |
|
---|
| 5373 | if (rayvc == vc)
|
---|
| 5374 | vcRays.push_back(ray);
|
---|
| 5375 | }
|
---|
| 5376 | }
|
---|
| 5377 |
|
---|
| 5378 | //-- export rays piercing this view cell
|
---|
| 5379 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 5380 | }
|
---|
| 5381 | }
|
---|
| 5382 |
|
---|
| 5383 | //-- export view cell geometry
|
---|
[1121] | 5384 |
|
---|
[697] | 5385 | exporter->SetWireframe();
|
---|
| 5386 |
|
---|
[1021] | 5387 | Material m;//= RandomMaterial();
|
---|
| 5388 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5389 | exporter->SetForcedMaterial(m);
|
---|
| 5390 |
|
---|
| 5391 | ExportViewCellGeometry(exporter, vc);
|
---|
| 5392 |
|
---|
[697] | 5393 | exporter->SetFilled();
|
---|
| 5394 |
|
---|
[1021] | 5395 | if (1)
|
---|
[1138] | 5396 | {
|
---|
| 5397 | //-- export pvs
|
---|
[1189] | 5398 |
|
---|
[1021] | 5399 | Intersectable::NewMail();
|
---|
[1189] | 5400 | KdLeaf::NewMail();
|
---|
[697] | 5401 |
|
---|
[1074] | 5402 | vector<KdLeaf *> kdLeaves;
|
---|
| 5403 |
|
---|
[1189] | 5404 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1074] | 5405 |
|
---|
[1021] | 5406 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[1074] | 5407 | {
|
---|
| 5408 | Intersectable *obj = (*oit).first;
|
---|
[1021] | 5409 |
|
---|
[1144] | 5410 | if (obj->Type() == Intersectable::KD_INTERSECTABLE)
|
---|
| 5411 | {
|
---|
| 5412 | m.mDiffuseColor = RgbColor(1, 1, 1);
|
---|
| 5413 | exporter->SetForcedMaterial(m);
|
---|
| 5414 |
|
---|
| 5415 | // export bounding box of node
|
---|
| 5416 | KdIntersectable *kdObj = dynamic_cast<KdIntersectable *>(obj);
|
---|
[1233] | 5417 | AxisAlignedBox3 box = mOspTree->GetBoundingBox(kdObj->GetItem());
|
---|
[1144] | 5418 |
|
---|
| 5419 | exporter->SetWireframe();
|
---|
| 5420 | exporter->ExportBox(box);
|
---|
| 5421 | exporter->SetFilled();
|
---|
| 5422 | }
|
---|
| 5423 |
|
---|
| 5424 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 5425 | exporter->SetForcedMaterial(m);
|
---|
| 5426 |
|
---|
| 5427 | // export pvs entry
|
---|
[1139] | 5428 | if (!obj->Mailed())
|
---|
[1021] | 5429 | {
|
---|
[1074] | 5430 | exporter->ExportIntersectable(obj);
|
---|
| 5431 | obj->Mail();
|
---|
| 5432 | }
|
---|
[1139] | 5433 | }
|
---|
[1021] | 5434 | }
|
---|
[1074] | 5435 |
|
---|
[1021] | 5436 | DEL_PTR(exporter);
|
---|
| 5437 | cout << "finished" << endl;
|
---|
[697] | 5438 | }
|
---|
[1021] | 5439 |
|
---|
| 5440 | Debug << endl;
|
---|
[697] | 5441 | }
|
---|
| 5442 |
|
---|
| 5443 |
|
---|
[1021] | 5444 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5445 | ViewCellContainer &viewCells) const
|
---|
| 5446 | {
|
---|
| 5447 | return mVspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 5448 | }
|
---|
[580] | 5449 |
|
---|
[1021] | 5450 |
|
---|
| 5451 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5452 | const Vector3 &termination,
|
---|
| 5453 | ViewCellContainer &viewcells)
|
---|
| 5454 | {
|
---|
| 5455 | return mVspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 5456 | }
|
---|
| 5457 |
|
---|
| 5458 |
|
---|
| 5459 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5460 | const bool exportPvs,
|
---|
| 5461 | const ObjectContainer &objects)
|
---|
| 5462 | {
|
---|
| 5463 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5464 | return false;
|
---|
| 5465 |
|
---|
| 5466 | cout << "exporting view cells to xml ... ";
|
---|
| 5467 |
|
---|
[1201] | 5468 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5469 |
|
---|
| 5470 | // for output we need unique ids for each view cell
|
---|
| 5471 | CreateUniqueViewCellIds();
|
---|
| 5472 |
|
---|
| 5473 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5474 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5475 |
|
---|
[1201] | 5476 | //-- export view space bounding box
|
---|
| 5477 |
|
---|
[1262] | 5478 | //stream << "<ViewSpaceBox"
|
---|
| 5479 | // << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 5480 | // << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
[1021] | 5481 |
|
---|
| 5482 |
|
---|
| 5483 | //-- export bounding boxes
|
---|
[1201] | 5484 |
|
---|
[1021] | 5485 | stream << "<BoundingBoxes>" << endl;
|
---|
| 5486 |
|
---|
| 5487 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 5488 |
|
---|
| 5489 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
[580] | 5490 | {
|
---|
[1021] | 5491 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 5492 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 5493 |
|
---|
| 5494 | //-- the bounding boxes
|
---|
| 5495 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 5496 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 5497 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[580] | 5498 | }
|
---|
[1021] | 5499 |
|
---|
| 5500 | stream << "</BoundingBoxes>" << endl;
|
---|
| 5501 |
|
---|
[1262] | 5502 | // the type of the view space hierarchy:
|
---|
| 5503 | // must be known beforehand because necessary for building view cels
|
---|
| 5504 | //stream << "<ViewSpaceHierarchyType name=\"vspTree\" />" << endl;
|
---|
[1021] | 5505 |
|
---|
[1262] | 5506 |
|
---|
[1021] | 5507 | //-- export the view cells and the pvs
|
---|
| 5508 |
|
---|
| 5509 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5510 |
|
---|
| 5511 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5512 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5513 | stream << "</ViewCells>" << endl;
|
---|
| 5514 |
|
---|
| 5515 |
|
---|
[1201] | 5516 | //-- export the view space hierarchy
|
---|
[1021] | 5517 |
|
---|
[1262] | 5518 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5519 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 5520 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 5521 |
|
---|
[1021] | 5522 | mVspTree->Export(stream);
|
---|
[1262] | 5523 | stream << endl << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5524 |
|
---|
[1201] | 5525 |
|
---|
| 5526 | //-- export the object space partition
|
---|
| 5527 |
|
---|
| 5528 | // the type of the view cells hierarchy
|
---|
[1262] | 5529 | if (mHierarchyManager->GetObjectSpaceSubdivisonType() ==
|
---|
| 5530 | HierarchyManager::KD_BASED_OBJ_SUBDIV)
|
---|
| 5531 | {
|
---|
| 5532 | stream << "<ObjectSpaceHierarchy type=\"osp\">" << endl;
|
---|
| 5533 | mOspTree->Export(stream);
|
---|
| 5534 | stream << endl << "</ObjectSpaceHierarchy>" << endl;
|
---|
| 5535 | }
|
---|
| 5536 | else if (mHierarchyManager->GetObjectSpaceSubdivisonType() ==
|
---|
| 5537 | HierarchyManager::BV_BASED_OBJ_SUBDIV)
|
---|
| 5538 | {
|
---|
| 5539 | stream << "<ObjectSpaceHierarchy type=\"bvh\">" << endl;
|
---|
| 5540 | mBvHierarchy->Export(stream);
|
---|
| 5541 | stream << endl << "</ObjectSpaceHierarchy>" << endl;
|
---|
| 5542 | }
|
---|
[1021] | 5543 |
|
---|
[1201] | 5544 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5545 | stream.close();
|
---|
[1201] | 5546 |
|
---|
[1021] | 5547 | cout << "finished" << endl;
|
---|
| 5548 |
|
---|
| 5549 | return true;
|
---|
| 5550 | }
|
---|
| 5551 |
|
---|
| 5552 |
|
---|
| 5553 |
|
---|
[1027] | 5554 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5555 | const bool active) const
|
---|
[1021] | 5556 | {
|
---|
| 5557 | if (!ViewCellsConstructed())
|
---|
| 5558 | return NULL;
|
---|
| 5559 |
|
---|
| 5560 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5561 | return NULL;
|
---|
| 5562 |
|
---|
| 5563 | return mVspTree->GetViewCell(point, active);
|
---|
| 5564 | }
|
---|
| 5565 |
|
---|
| 5566 |
|
---|
| 5567 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5568 | {
|
---|
| 5569 | // matt: TODO
|
---|
| 5570 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5571 |
|
---|
| 5572 | ViewCellContainer leaves;
|
---|
| 5573 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5574 |
|
---|
| 5575 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5576 |
|
---|
| 5577 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5578 | {
|
---|
| 5579 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
[1144] | 5580 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(leaf);
|
---|
[1027] | 5581 |
|
---|
| 5582 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5583 | }
|
---|
| 5584 |
|
---|
[1021] | 5585 | vc->SetMesh(mesh);
|
---|
| 5586 | }
|
---|
| 5587 |
|
---|
| 5588 |
|
---|
| 5589 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5590 | {
|
---|
| 5591 | // matt: TODO
|
---|
| 5592 | return 0;
|
---|
| 5593 | }
|
---|
| 5594 |
|
---|
| 5595 |
|
---|
| 5596 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5597 | const bool createMesh)
|
---|
| 5598 | {
|
---|
| 5599 | float area = 0;
|
---|
| 5600 | float volume = 0;
|
---|
| 5601 |
|
---|
| 5602 | ViewCellContainer leaves;
|
---|
| 5603 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5604 |
|
---|
| 5605 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5606 |
|
---|
| 5607 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5608 | {
|
---|
[1027] | 5609 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5610 |
|
---|
[1144] | 5611 | const AxisAlignedBox3 box = mVspTree->GetBoundingBox(leaf);
|
---|
[1021] | 5612 |
|
---|
[1027] | 5613 | const float lVol = box.GetVolume();
|
---|
| 5614 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5615 |
|
---|
| 5616 | //(*it)->SetVolume(vol);
|
---|
| 5617 | //(*it)->SetArea(area);
|
---|
| 5618 |
|
---|
| 5619 | area += lArea;
|
---|
| 5620 | volume += lVol;
|
---|
| 5621 |
|
---|
| 5622 | CreateMesh(*it);
|
---|
[580] | 5623 | }
|
---|
| 5624 |
|
---|
[1021] | 5625 | viewCell->SetVolume(volume);
|
---|
| 5626 | viewCell->SetArea(area);
|
---|
[580] | 5627 | }
|
---|
[1021] | 5628 |
|
---|
[580] | 5629 |
|
---|
[1159] | 5630 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5631 | const bool addRays,
|
---|
| 5632 | const bool storeViewCells)
|
---|
| 5633 | {
|
---|
| 5634 | ViewCellContainer viewcells;
|
---|
| 5635 |
|
---|
| 5636 | ray.mPvsContribution = 0;
|
---|
| 5637 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5638 |
|
---|
| 5639 | static Ray hray;
|
---|
| 5640 | hray.Init(ray);
|
---|
| 5641 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5642 | //Ray hray(ray);
|
---|
| 5643 |
|
---|
| 5644 | float tmin = 0, tmax = 1.0;
|
---|
| 5645 |
|
---|
| 5646 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5647 | return 0;
|
---|
| 5648 |
|
---|
| 5649 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5650 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5651 |
|
---|
| 5652 | // traverse the view space subdivision
|
---|
| 5653 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5654 |
|
---|
| 5655 | if (storeViewCells)
|
---|
| 5656 | { // copy viewcells memory efficiently
|
---|
| 5657 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5658 | ray.mViewCells = viewcells;
|
---|
| 5659 | }
|
---|
| 5660 |
|
---|
| 5661 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5662 |
|
---|
| 5663 | for (; it != viewcells.end(); ++ it)
|
---|
| 5664 | {
|
---|
| 5665 | ViewCell *viewcell = *it;
|
---|
| 5666 |
|
---|
| 5667 | if (viewcell->GetValid())
|
---|
| 5668 | {
|
---|
| 5669 | // if ray not outside of view space
|
---|
| 5670 | float contribution;
|
---|
| 5671 |
|
---|
| 5672 | if (ray.mTerminationObject)
|
---|
| 5673 | {
|
---|
[1168] | 5674 | // todo: maybe not correct for kd node pvs
|
---|
[1159] | 5675 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 5676 | ray.mPdf, contribution))
|
---|
| 5677 | {
|
---|
| 5678 | ++ ray.mPvsContribution;
|
---|
| 5679 | }
|
---|
| 5680 |
|
---|
| 5681 | ray.mRelativePvsContribution += contribution;
|
---|
| 5682 | }
|
---|
| 5683 |
|
---|
| 5684 | // for directional sampling it is important to count only contributions
|
---|
| 5685 | // made in one direction!!!
|
---|
| 5686 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1166] | 5687 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1159] | 5688 | if (ray.mOriginObject &&
|
---|
| 5689 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 5690 | ray.mPdf,
|
---|
| 5691 | contribution))
|
---|
| 5692 | {
|
---|
| 5693 | ++ ray.mPvsContribution;
|
---|
| 5694 | ray.mRelativePvsContribution += contribution;
|
---|
| 5695 | }
|
---|
| 5696 | #endif
|
---|
| 5697 | }
|
---|
| 5698 | }
|
---|
| 5699 |
|
---|
[1259] | 5700 | if (!addRays)
|
---|
| 5701 | return ray.mRelativePvsContribution;
|
---|
| 5702 |
|
---|
| 5703 | // sampled objects are stored in the pvs
|
---|
| 5704 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 5705 | {
|
---|
[1259] | 5706 | ViewCell *viewCell = *it;
|
---|
[1159] | 5707 |
|
---|
[1259] | 5708 | if (!viewCell->GetValid())
|
---|
| 5709 | break;
|
---|
[1159] | 5710 |
|
---|
[1259] | 5711 | AddSampleToPvs(
|
---|
| 5712 | ray.mTerminationObject,
|
---|
| 5713 | ray.mTermination,
|
---|
| 5714 | viewCell,
|
---|
| 5715 | ray.mPdf,
|
---|
| 5716 | ray.mRelativePvsContribution);
|
---|
| 5717 |
|
---|
[1166] | 5718 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1168] | 5719 |
|
---|
[1259] | 5720 | AddSampleToPvs(
|
---|
| 5721 | ray.mOriginObject,
|
---|
| 5722 | ray.mOrigin,
|
---|
| 5723 | viewCell,
|
---|
| 5724 | ray.mPdf,
|
---|
| 5725 | ray.mRelativePvsContribution);
|
---|
| 5726 | #endif
|
---|
[1159] | 5727 | }
|
---|
| 5728 |
|
---|
| 5729 | return ray.mRelativePvsContribution;
|
---|
| 5730 | }
|
---|
| 5731 |
|
---|
| 5732 |
|
---|
[1259] | 5733 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 5734 | const Vector3 &hitPoint,
|
---|
| 5735 | ViewCell *vc,
|
---|
| 5736 | const float pdf,
|
---|
| 5737 | float &contribution) const
|
---|
| 5738 | {
|
---|
| 5739 | if (!obj) return false;
|
---|
| 5740 |
|
---|
| 5741 | switch (mHierarchyManager->GetObjectSpaceSubdivisonType())
|
---|
| 5742 | {
|
---|
| 5743 | case HierarchyManager::NO_OBJ_SUBDIV:
|
---|
| 5744 | // potentially visible objects
|
---|
| 5745 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 5746 |
|
---|
| 5747 | case HierarchyManager::KD_BASED_OBJ_SUBDIV:
|
---|
| 5748 | {
|
---|
| 5749 | // potentially visible kd cells
|
---|
| 5750 | KdLeaf *leaf = mOspTree->GetLeaf(hitPoint/*ray->mOriginNode*/);
|
---|
| 5751 | return mOspTree->AddLeafToPvs(leaf, vc, pdf, contribution);
|
---|
| 5752 | }
|
---|
| 5753 | case HierarchyManager::BV_BASED_OBJ_SUBDIV:
|
---|
| 5754 | {
|
---|
| 5755 | BvhLeaf *leaf = mBvHierarchy->GetLeaf(obj);
|
---|
| 5756 | return mBvHierarchy->AddLeafToPvs(leaf, vc, pdf, contribution);
|
---|
| 5757 | }
|
---|
| 5758 | default:
|
---|
| 5759 | return false;
|
---|
| 5760 | }
|
---|
| 5761 | }
|
---|
| 5762 |
|
---|
| 5763 |
|
---|
[1021] | 5764 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5765 | {
|
---|
| 5766 | // TODO
|
---|
| 5767 | }
|
---|
[580] | 5768 |
|
---|
[1201] | 5769 |
|
---|
| 5770 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5771 | ObjectContainer *objects,
|
---|
| 5772 | const bool finalizeViewCells,
|
---|
| 5773 | BoundingBoxConverter *bconverter)
|
---|
| 5774 |
|
---|
| 5775 | {
|
---|
| 5776 | ViewCellsManager *vm =
|
---|
| 5777 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
| 5778 |
|
---|
| 5779 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
| 5780 |
|
---|
| 5781 | return vm;
|
---|
| 5782 | }
|
---|
| 5783 |
|
---|
| 5784 |
|
---|
[1184] | 5785 | #if TEST_EVALUATION
|
---|
[1178] | 5786 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5787 | {
|
---|
[1180] | 5788 | int castSamples = (int)storedRays.size();
|
---|
[1178] | 5789 |
|
---|
| 5790 | char s[64];
|
---|
| 5791 | char statsPrefix[100];
|
---|
[1180] | 5792 |
|
---|
[1178] | 5793 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
| 5794 |
|
---|
| 5795 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 5796 |
|
---|
| 5797 | // should directional sampling be used?
|
---|
| 5798 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
| 5799 |
|
---|
| 5800 | cout << "reseting pvs ... ";
|
---|
| 5801 |
|
---|
| 5802 | const bool startFromZero = true;
|
---|
| 5803 |
|
---|
[1184] | 5804 |
|
---|
[1178] | 5805 | // reset pvs and start over from zero
|
---|
| 5806 | if (startFromZero)
|
---|
| 5807 | {
|
---|
| 5808 | mViewCellsTree->ResetPvs();
|
---|
| 5809 | }
|
---|
| 5810 | else // start from current sampless
|
---|
| 5811 | {
|
---|
| 5812 | // statistics before casting more samples
|
---|
| 5813 | cout << "compute new statistics ... ";
|
---|
| 5814 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5815 | string fName = string(statsPrefix) + string(s);
|
---|
| 5816 |
|
---|
| 5817 | mViewCellsTree->ExportStats(fName);
|
---|
| 5818 | cout << "finished" << endl;
|
---|
| 5819 | }
|
---|
| 5820 | cout << "finished" << endl;
|
---|
| 5821 |
|
---|
| 5822 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 5823 |
|
---|
| 5824 | VssRayContainer evaluationSamples = storedRays;
|
---|
| 5825 | const int samplingType = mEvaluationSamplingType;
|
---|
| 5826 |
|
---|
| 5827 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 5828 |
|
---|
| 5829 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 5830 |
|
---|
| 5831 | cout << "finished" << endl;
|
---|
| 5832 |
|
---|
| 5833 | cout << "compute new statistics ... ";
|
---|
| 5834 | Debug << "compute new statistics ... ";
|
---|
| 5835 |
|
---|
[1221] | 5836 | // propagate pvs or pvs size information
|
---|
[1178] | 5837 | ObjectPvs pvs;
|
---|
| 5838 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 5839 |
|
---|
[1259] | 5840 | ///////////////////////////////////////
|
---|
| 5841 | //-- temporary matt: test render cost
|
---|
[1178] | 5842 |
|
---|
[1259] | 5843 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5844 | string fileName = string(statsPrefix) + string(s);
|
---|
[1178] | 5845 |
|
---|
[1259] | 5846 | ViewCellContainer leaves;
|
---|
[1184] | 5847 |
|
---|
[1259] | 5848 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5849 | float rc = 0;
|
---|
| 5850 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5851 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5852 | {
|
---|
| 5853 | ViewCell *vc = *vit;
|
---|
[1184] | 5854 | int pvs = vc->GetPvs().CountObjectsInPvs();
|
---|
[1259] | 5855 | float vol = vc->GetVolume();
|
---|
| 5856 | rc += pvs * vol;
|
---|
[1184] | 5857 |
|
---|
| 5858 | }
|
---|
| 5859 |
|
---|
[1259] | 5860 | Debug << "\nhere295 " << rc / mVspTree->GetBoundingBox().GetVolume() << endl;
|
---|
[1178] | 5861 | mViewCellsTree->ExportStats(fileName);
|
---|
| 5862 | cout << "finished" << endl;
|
---|
| 5863 |
|
---|
| 5864 | disposeRays(evaluationSamples, NULL);
|
---|
| 5865 | }
|
---|
[1179] | 5866 | #endif
|
---|
[580] | 5867 |
|
---|
[860] | 5868 |
|
---|
[878] | 5869 | }
|
---|