[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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[1020] | 10 | #include "VspOspTree.h"
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[440] | 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[931] | 17 | #include "BoundingBoxConverter.h"
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[979] | 18 | #include "GlRenderer.h"
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[1001] | 19 | #include "ResourceManager.h"
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[440] | 20 |
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[931] | 21 |
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[863] | 22 | namespace GtpVisibilityPreprocessor {
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[860] | 23 |
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| 24 |
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[712] | 25 | // HACK
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| 26 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 27 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 28 |
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[697] | 29 |
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| 30 |
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| 31 | template <typename T> class myless
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| 32 | {
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| 33 | public:
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| 34 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 35 | bool operator() (T v1, T v2) const
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| 36 | {
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| 37 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 38 | }
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| 39 | };
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| 40 |
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| 41 |
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[1004] | 42 | ViewCellsManager::ViewCellsManager():
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[480] | 43 | mRenderer(NULL),
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[574] | 44 | mInitialSamples(0),
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[440] | 45 | mConstructionSamples(0),
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| 46 | mPostProcessSamples(0),
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[470] | 47 | mVisualizationSamples(0),
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| 48 | mTotalAreaValid(false),
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[517] | 49 | mTotalArea(0.0f),
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[547] | 50 | mViewCellsFinished(false),
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[562] | 51 | mMaxPvsSize(9999999),
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[564] | 52 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 53 | mMaxPvsRatio(1.0),
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| 54 | mViewCellPvsIsUpdated(false)
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[440] | 55 | {
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[542] | 56 | mViewSpaceBox.Initialize();
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[482] | 57 | ParseEnvironment();
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[580] | 58 |
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[1004] | 59 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 60 | }
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| 61 |
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[517] | 62 |
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[482] | 63 | void ViewCellsManager::ParseEnvironment()
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| 64 | {
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[503] | 65 | // visualization stuff
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[1004] | 66 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 67 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 68 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 69 |
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[1004] | 70 | Environment::GetSingleton()->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 71 |
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[710] | 72 | // HACK
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| 73 | if (0)
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| 74 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 75 | else
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| 76 | mMinPvsSize = 0;
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| 77 |
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[1004] | 78 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 79 |
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[1004] | 80 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 81 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 82 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 83 |
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[1004] | 84 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 85 |
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[1004] | 86 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 87 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 88 |
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[1004] | 89 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 90 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 91 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 92 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 93 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 94 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 95 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 96 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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| 97 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 98 |
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[1004] | 99 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 100 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[837] | 101 |
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[664] | 102 | char buf[100];
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[1004] | 103 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 104 |
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[660] | 105 |
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[1020] | 106 | // sampling type for view cells construction samples
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[664] | 107 | if (strcmp(buf, "box") == 0)
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[722] | 108 | {
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[660] | 109 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 110 | }
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[664] | 111 | else if (strcmp(buf, "directional") == 0)
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[722] | 112 | {
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[660] | 113 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 114 | }
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[1020] | 115 | else if (strcmp(buf, "object_directional") == 0)
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| 116 | {
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| 117 | mSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 118 | }
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[1022] | 119 | /*else if (strcmp(buf, "interior") == 0)
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| 120 | {
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| 121 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 122 | }*/
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[1020] | 123 | else
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| 124 | {
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[666] | 125 | Debug << "error! wrong sampling type" << endl;
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| 126 | exit(0);
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| 127 | }
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[660] | 128 |
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[1020] | 129 | // sampling type for evaluation samples
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[1004] | 130 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 131 |
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| 132 | if (strcmp(buf, "box") == 0)
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| 133 | {
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| 134 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 135 | }
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| 136 | else if (strcmp(buf, "directional") == 0)
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| 137 | {
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| 138 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 139 | }
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[1020] | 140 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 141 | {
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[1020] | 142 | mEvaluationSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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| 143 | }
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[1022] | 144 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 145 | {
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| 146 | mEvaluationSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 147 | }*/
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[1020] | 148 | else
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| 149 | {
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[722] | 150 | Debug << "error! wrong sampling type" << endl;
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| 151 | exit(0);
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| 152 | }
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[503] | 153 |
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[1004] | 154 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 155 |
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[734] | 156 | if (strcmp(buf, "perobject") == 0)
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[728] | 157 | {
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| 158 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 159 | }
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| 160 | else if (strcmp(buf, "directional") == 0)
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| 161 | {
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| 162 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 163 | }
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| 164 | else
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| 165 | {
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| 166 | Debug << "error! wrong sampling type" << endl;
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| 167 | exit(0);
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| 168 | }
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| 169 |
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[1004] | 170 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 171 |
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[482] | 172 | if (strcmp(buf, "PVS") == 0)
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| 173 | mColorCode = 1;
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| 174 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 175 | mColorCode = 2;
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| 176 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 177 | mColorCode = 3;
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| 178 | else
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| 179 | mColorCode = 0;
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| 180 |
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[664] | 181 |
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[710] | 182 |
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[1027] | 183 | Debug << "************ View Cells options ***************" << endl;
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[664] | 184 | Debug << "color code: " << mColorCode << endl;
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| 185 |
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| 186 | Debug << "export rays: " << mExportRays << endl;
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| 187 | Debug << "export geometry: " << mExportGeometry << endl;
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| 188 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 189 |
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[710] | 190 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 191 |
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| 192 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 193 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 194 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 195 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 196 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 197 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 198 | Debug << "export to file: " << mExportViewCells << endl;
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| 199 |
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[801] | 200 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 201 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 202 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 203 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 204 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 205 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 206 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 207 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 208 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 209 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 210 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 211 |
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| 212 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 213 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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| 214 |
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[664] | 215 | Debug << endl;
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[440] | 216 | }
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| 217 |
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[485] | 218 |
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[440] | 219 | ViewCellsManager::~ViewCellsManager()
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| 220 | {
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[1020] | 221 | // HACK: if view cells tree does not
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| 222 | // take care of view cells, we have to do it
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| 223 | // question: rather create view cells resource manager?
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[598] | 224 | if (!ViewCellsTreeConstructed())
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| 225 | CLEAR_CONTAINER(mViewCells);
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[1020] | 226 |
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[1002] | 227 | DEL_PTR(mViewCellsTree);
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[440] | 228 | }
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| 229 |
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[859] | 230 | AxisAlignedBox3
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| 231 | ViewCellsManager::GetViewCellBox(ViewCell *vc)
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| 232 | {
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| 233 | Mesh *m = vc->GetMesh();
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| 234 |
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| 235 | if (m) {
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| 236 | m->ComputeBoundingBox();
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| 237 | return m->mBox;
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| 238 | }
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[485] | 239 |
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[859] | 240 | AxisAlignedBox3 box;
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| 241 |
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| 242 | box.Initialize();
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| 243 |
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| 244 | if (!vc->IsLeaf()) {
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| 245 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 246 |
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| 247 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 248 | for (; it != vci->mChildren.end(); ++it) {
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| 249 | box.Include(GetViewCellBox(*it));
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| 250 | }
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| 251 | }
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| 252 |
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| 253 | return box;
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| 254 | }
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| 255 |
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[693] | 256 | void ViewCellsManager::CollectEmptyViewCells()
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| 257 | {
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| 258 | mEmptyViewCells.clear();
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| 259 | ViewCellContainer leaves;
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| 260 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 261 |
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| 262 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 263 |
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| 264 | cout << "collecting empty view cells" << endl;
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[694] | 265 |
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[693] | 266 | for (it = leaves.begin(); it != it_end; ++ it)
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| 267 | {
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| 268 | if ((*it)->GetPvs().Empty())
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| 269 | {
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| 270 | mEmptyViewCells.push_back(*it);
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| 271 | }
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| 272 | }
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[694] | 273 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 274 | }
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| 275 |
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| 276 |
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[1021] | 277 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
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| 278 | {
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| 279 | return false;
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| 280 | }
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| 281 |
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| 282 |
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[694] | 283 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 284 | {
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| 285 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 286 |
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| 287 | char buf[50];
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| 288 | int i = 0;
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| 289 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 290 | {
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| 291 | if (!(*it)->GetPvs().Empty())
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| 292 | {
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[694] | 293 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 294 | Exporter *exporter = Exporter::GetExporter(buf);
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| 295 |
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| 296 | if (exporter && i < 20)
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| 297 | {
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[694] | 298 | Ray *pray = (*it)->mPiercingRays[0];
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[728] | 299 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: "
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| 300 | << (*it)->GetPvs().GetSize() << " " << (int)pray->intersections.size() << endl;
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[694] | 301 |
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| 302 | exporter->ExportRays((*it)->mPiercingRays);
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| 303 |
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| 304 | exporter->SetFilled();
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| 305 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 306 |
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| 307 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 308 | {
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| 309 | if (pray->intersections[j].mObject)
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| 310 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 311 | }
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| 312 |
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| 313 | //exporter->SetWireframe();
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| 314 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 315 | exporter->ExportGeometry(obj);
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| 316 |
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| 317 | exporter->SetFilled();
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| 318 |
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| 319 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 320 | ExportViewCellGeometry(exporter, *it);
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[694] | 321 |
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| 322 | delete exporter;
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[693] | 323 | }
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| 324 |
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[694] | 325 |
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[693] | 326 | ++ i;
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| 327 | }
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| 328 | }
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[1002] | 329 | Debug << "\nSampled " << i << " new view cells ("
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| 330 | << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 331 | }
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| 332 |
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| 333 |
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[574] | 334 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 335 | const int sampleType,
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| 336 | VssRayContainer &passSamples) const
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[527] | 337 | {
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[570] | 338 | SimpleRayContainer simpleRays;
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[540] | 339 |
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[573] | 340 | preprocessor->GenerateRays(samplesPerPass,
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| 341 | sampleType,
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[570] | 342 | simpleRays);
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[564] | 343 |
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[573] | 344 | // shoot simple ray and add it to importance samples
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| 345 | preprocessor->CastRays(simpleRays, passSamples);
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[570] | 346 |
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[574] | 347 | return (int)passSamples.size();
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| 348 | }
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[570] | 349 |
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[574] | 350 |
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[607] | 351 |
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[574] | 352 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 353 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 354 | {
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| 355 | cout << "disposing samples ... ";
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[582] | 356 | long startTime = GetTime();
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| 357 | int n = (int)rays.size();
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| 358 |
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[573] | 359 | if (outRays)
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[542] | 360 | {
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[574] | 361 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 362 |
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| 363 | for (it = rays.begin(); it != it_end; ++ it)
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| 364 | {
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| 365 | outRays->push_back(*it);
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| 366 | }
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[573] | 367 | }
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| 368 | else
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| 369 | {
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[639] | 370 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 371 |
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| 372 | for (it = rays.begin(); it != it_end; ++ it)
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| 373 | {
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| 374 | //(*it)->Unref();
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| 375 | if (!(*it)->IsActive())
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| 376 | delete (*it);
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| 377 | }
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[573] | 378 | }
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[639] | 379 |
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[574] | 380 | cout << "finished" << endl;
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[582] | 381 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 382 | }
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[570] | 383 |
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| 384 |
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[573] | 385 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 386 | {
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| 387 | int numSamples = 0;
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| 388 | SimpleRayContainer simpleRays;
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| 389 |
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[574] | 390 | VssRayContainer initialSamples;
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[540] | 391 |
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[574] | 392 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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[712] | 393 |
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[752] | 394 | long startTime = GetTime();
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| 395 |
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[573] | 396 | //-- construction rays => we use uniform samples for this
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[574] | 397 | CastPassSamples(mInitialSamples,
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[660] | 398 | mSamplingType,
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[574] | 399 | initialSamples);
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[573] | 400 |
|
---|
[574] | 401 | cout << "finished" << endl;
|
---|
| 402 |
|
---|
[660] | 403 |
|
---|
[573] | 404 | // construct view cells
|
---|
[752] | 405 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 406 |
|
---|
[727] | 407 | // initial samples count for overall samples ...
|
---|
[752] | 408 | numSamples += mInitialSamples;
|
---|
[542] | 409 |
|
---|
[574] | 410 | // rays can be passed or deleted
|
---|
[639] | 411 | disposeRays(initialSamples, outRays);
|
---|
[752] | 412 |
|
---|
| 413 | cout << "time needed for initial construction: "
|
---|
| 414 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 415 |
|
---|
| 416 | Debug << "time needed for initial construction: "
|
---|
| 417 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 418 |
|
---|
[1027] | 419 |
|
---|
[752] | 420 | // take post processing time
|
---|
| 421 | startTime = GetTime();
|
---|
| 422 |
|
---|
[660] | 423 | // -- stats after contruction
|
---|
| 424 | ResetViewCells();
|
---|
[667] | 425 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
| 426 |
|
---|
[1002] | 427 |
|
---|
[683] | 428 | if (1) // export initial view cells
|
---|
[660] | 429 | {
|
---|
[712] | 430 | const char filename[] = "view_cells.wrl";
|
---|
| 431 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
[660] | 432 |
|
---|
[712] | 433 |
|
---|
[660] | 434 | if (exporter)
|
---|
| 435 | {
|
---|
[712] | 436 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
|
---|
[660] | 437 | if (mExportGeometry)
|
---|
[712] | 438 | {
|
---|
[660] | 439 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 440 | }
|
---|
[660] | 441 |
|
---|
[750] | 442 | exporter->SetWireframe();
|
---|
[660] | 443 | ExportViewCellsForViz(exporter);
|
---|
| 444 |
|
---|
| 445 | delete exporter;
|
---|
[712] | 446 | cout << "finished" << endl;
|
---|
[660] | 447 | }
|
---|
| 448 | }
|
---|
| 449 |
|
---|
[573] | 450 | //-- guided rays are used for further sampling
|
---|
[574] | 451 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[570] | 452 |
|
---|
[666] | 453 | // should we use directional samples?
|
---|
[694] | 454 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 455 |
|
---|
[712] | 456 | // -- the main loop
|
---|
[573] | 457 | while (numSamples < n)
|
---|
| 458 | {
|
---|
[596] | 459 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 460 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 461 |
|
---|
[574] | 462 | VssRayContainer constructionSamples;
|
---|
| 463 |
|
---|
[694] | 464 | const int samplingType = mSamplingType;
|
---|
| 465 | /*dirSamples ?
|
---|
[574] | 466 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
[694] | 467 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
|
---|
[667] | 468 |
|
---|
[720] | 469 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 470 |
|
---|
[727] | 471 | // cast new samples
|
---|
[574] | 472 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 473 | samplingType,
|
---|
[574] | 474 | constructionSamples);
|
---|
| 475 |
|
---|
| 476 | cout << "finished" << endl;
|
---|
| 477 |
|
---|
| 478 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 479 |
|
---|
[727] | 480 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 481 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 482 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 483 |
|
---|
[574] | 484 | cout << "finished" << endl;
|
---|
| 485 |
|
---|
| 486 |
|
---|
[639] | 487 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 488 |
|
---|
| 489 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 490 | }
|
---|
[752] | 491 |
|
---|
[573] | 492 |
|
---|
| 493 | //-- post processing
|
---|
| 494 | VssRayContainer postProcessSamples;
|
---|
[570] | 495 |
|
---|
[694] | 496 | //-- construction rays
|
---|
[574] | 497 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 498 | mSamplingType,
|
---|
[574] | 499 | postProcessSamples);
|
---|
[660] | 500 |
|
---|
| 501 |
|
---|
| 502 | // stats before post processing (i.e., merge)
|
---|
| 503 | EvaluateViewCellsStats();
|
---|
| 504 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 505 |
|
---|
| 506 | mRenderer->RenderScene();
|
---|
| 507 | SimulationStatistics ss;
|
---|
| 508 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 509 |
|
---|
| 510 | Debug << ss << endl;
|
---|
| 511 |
|
---|
| 512 |
|
---|
[574] | 513 | cout << "starting post processing and visualization" << endl;
|
---|
| 514 |
|
---|
[660] | 515 |
|
---|
[666] | 516 | // store view cells for postprocessing
|
---|
[574] | 517 | const bool storeViewCells = true;
|
---|
[605] | 518 |
|
---|
[660] | 519 |
|
---|
[605] | 520 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 521 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 522 |
|
---|
[720] | 523 | //-- post processing (e.g.,merging) of the view cells
|
---|
[573] | 524 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 525 |
|
---|
[955] | 526 | cout << "time needed for post processing (merge) step: "
|
---|
[752] | 527 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 528 |
|
---|
[955] | 529 | Debug << "time needed for post processing (merge) step: "
|
---|
[752] | 530 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 531 |
|
---|
[1002] | 532 | disposeRays(postProcessSamples, outRays);
|
---|
| 533 |
|
---|
[801] | 534 |
|
---|
[1002] | 535 | //return 1;
|
---|
[801] | 536 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
| 537 | if (mEvaluateViewCells)
|
---|
| 538 | {
|
---|
| 539 | EvalViewCellPartition(preprocessor);
|
---|
| 540 | }
|
---|
[1002] | 541 |
|
---|
| 542 |
|
---|
[574] | 543 | //-- visualization
|
---|
[666] | 544 | if (mShowVisualization)
|
---|
| 545 | {
|
---|
| 546 | VssRayContainer visualizationSamples;
|
---|
[574] | 547 |
|
---|
[666] | 548 | //-- construction rays => we use uniform samples for this
|
---|
| 549 | CastPassSamples(mVisualizationSamples,
|
---|
| 550 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 551 | visualizationSamples);
|
---|
[574] | 552 |
|
---|
[666] | 553 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 554 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 555 |
|
---|
[666] | 556 | // different visualizations
|
---|
| 557 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 558 |
|
---|
[666] | 559 | disposeRays(visualizationSamples, outRays);
|
---|
| 560 | }
|
---|
[574] | 561 |
|
---|
[573] | 562 | return numSamples;
|
---|
[527] | 563 | }
|
---|
| 564 |
|
---|
[547] | 565 |
|
---|
[752] | 566 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 567 | const int nViewCells)
|
---|
[728] | 568 | {
|
---|
| 569 | std::ofstream outstream;
|
---|
| 570 | outstream.open(filename.c_str());
|
---|
| 571 |
|
---|
| 572 | ViewCellContainer viewCells;
|
---|
[735] | 573 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 574 |
|
---|
| 575 | float maxRenderCost, minRenderCost;
|
---|
[734] | 576 |
|
---|
| 577 | // sort by render cost
|
---|
| 578 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 579 |
|
---|
| 580 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 581 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 582 |
|
---|
[991] | 583 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 584 |
|
---|
[997] | 585 | int histoIntervals;
|
---|
[1004] | 586 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 587 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 588 |
|
---|
[997] | 589 | int histoMaxVal;
|
---|
[1004] | 590 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 591 | maxRenderCost = max(histoMaxVal, maxRenderCost);
|
---|
[991] | 592 |
|
---|
[997] | 593 |
|
---|
[728] | 594 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 595 | const float stepSize = range / (float)intervals;
|
---|
[728] | 596 |
|
---|
[735] | 597 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 598 |
|
---|
| 599 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 600 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 601 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 602 |
|
---|
[736] | 603 | int j = 0;
|
---|
[735] | 604 | int i = 0;
|
---|
| 605 |
|
---|
[734] | 606 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 607 |
|
---|
[744] | 608 | // count for integral
|
---|
| 609 | float volSum = 0;
|
---|
| 610 | int smallerCostSum = 0;
|
---|
[735] | 611 |
|
---|
[734] | 612 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 613 | while (1)
|
---|
| 614 | {
|
---|
[744] | 615 | // count for histogram value
|
---|
| 616 | float volDif = 0;
|
---|
| 617 | int smallerCostDif = 0;
|
---|
[736] | 618 |
|
---|
[734] | 619 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 620 | {
|
---|
[744] | 621 | volSum += viewCells[i]->GetVolume();
|
---|
| 622 | volDif += viewCells[i]->GetVolume();
|
---|
| 623 |
|
---|
[734] | 624 | ++ i;
|
---|
[744] | 625 | ++ smallerCostSum;
|
---|
| 626 | ++ smallerCostDif;
|
---|
[734] | 627 | }
|
---|
[736] | 628 |
|
---|
[744] | 629 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 630 | break;
|
---|
[736] | 631 |
|
---|
[744] | 632 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 633 | const float volRatioSum = volSum / totalVol;
|
---|
| 634 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 635 |
|
---|
[991] | 636 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 637 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 638 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 639 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 640 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 641 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 642 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 643 |
|
---|
| 644 | // increase current render cost
|
---|
[734] | 645 | currentRenderCost += stepSize;
|
---|
| 646 | }
|
---|
[735] | 647 |
|
---|
[734] | 648 | outstream.close();
|
---|
| 649 | }
|
---|
| 650 |
|
---|
[735] | 651 |
|
---|
[979] | 652 |
|
---|
| 653 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 654 | ObjectContainer *objects,
|
---|
| 655 | const bool finalizeViewCells,
|
---|
| 656 | BoundingBoxConverter *bconverter)
|
---|
| 657 |
|
---|
| 658 | {
|
---|
| 659 | ViewCellsParser parser;
|
---|
| 660 |
|
---|
| 661 | ViewCellsManager *vm = NULL;
|
---|
| 662 |
|
---|
[1004] | 663 | if (parser.ParseFile(filename, &vm, objects, bconverter))
|
---|
[979] | 664 | {
|
---|
| 665 | long startTime = GetTime();
|
---|
| 666 |
|
---|
| 667 | //vm->PrepareLoadedViewCells();
|
---|
| 668 | vm->ResetViewCells();
|
---|
| 669 |
|
---|
| 670 | vm->mViewCellsFinished = true;
|
---|
| 671 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 672 |
|
---|
| 673 | // create the meshes and compute volumes
|
---|
| 674 | if (finalizeViewCells)
|
---|
| 675 | {
|
---|
| 676 | vm->FinalizeViewCells(true);
|
---|
| 677 | vm->mViewCellsTree->AssignRandomColors();
|
---|
| 678 | }
|
---|
| 679 |
|
---|
| 680 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 681 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 682 | }
|
---|
| 683 | else
|
---|
| 684 | {
|
---|
| 685 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 686 | DEL_PTR(vm);
|
---|
| 687 | }
|
---|
| 688 |
|
---|
| 689 | return vm;
|
---|
| 690 | }
|
---|
| 691 |
|
---|
| 692 |
|
---|
| 693 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 694 | const bool exportPvs,
|
---|
| 695 | const ObjectContainer &objects)
|
---|
| 696 | {
|
---|
[1002] | 697 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[997] | 698 | return false;
|
---|
| 699 |
|
---|
[979] | 700 | cout << "exporting view cells to xml ... ";
|
---|
| 701 |
|
---|
| 702 | #if ZIPPED_VIEWCELLS
|
---|
| 703 | ogzstream stream(filename.c_str());
|
---|
| 704 | #else
|
---|
| 705 | std::ofstream stream(filename.c_str());
|
---|
| 706 | #endif
|
---|
| 707 |
|
---|
| 708 | // for output we need unique ids for each view cell
|
---|
| 709 | CreateUniqueViewCellIds();
|
---|
| 710 |
|
---|
| 711 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 712 | stream << "<VisibilitySolution>" << endl;
|
---|
| 713 |
|
---|
| 714 | //-- the view space bounding box
|
---|
| 715 | stream << "<ViewSpaceBox"
|
---|
| 716 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 717 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 718 |
|
---|
| 719 |
|
---|
| 720 | //-- export bounding boxes
|
---|
| 721 | stream << "<BoundingBoxes>" << endl;
|
---|
| 722 |
|
---|
| 723 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 724 |
|
---|
| 725 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 726 | {
|
---|
| 727 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 728 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 729 |
|
---|
| 730 | //-- the bounding boxes
|
---|
| 731 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 732 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 733 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 734 | }
|
---|
| 735 |
|
---|
| 736 | stream << "</BoundingBoxes>" << endl;
|
---|
| 737 |
|
---|
| 738 |
|
---|
| 739 | //-- export the view cells and the pvs
|
---|
| 740 | stream << "<HierarchyType name=\"vspBspTree\" />" << endl;
|
---|
| 741 |
|
---|
| 742 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 743 |
|
---|
| 744 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 745 |
|
---|
| 746 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 747 |
|
---|
| 748 | stream << "</ViewCells>" << endl;
|
---|
| 749 |
|
---|
| 750 |
|
---|
| 751 | //-- export the spatial hierarchy
|
---|
| 752 |
|
---|
| 753 | // the type of the view cells hierarchy
|
---|
| 754 | stream << "<Hierarchy>" << endl;
|
---|
| 755 | mVspBspTree->Export(stream);
|
---|
| 756 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 757 |
|
---|
| 758 | stream << "</VisibilitySolution>" << endl;
|
---|
| 759 |
|
---|
| 760 |
|
---|
| 761 | stream.close();
|
---|
| 762 | cout << "finished" << endl;
|
---|
| 763 |
|
---|
| 764 | return true;
|
---|
| 765 | }
|
---|
| 766 |
|
---|
| 767 |
|
---|
[735] | 768 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 769 | const int nViewCells)
|
---|
[734] | 770 | {
|
---|
| 771 | std::ofstream outstream;
|
---|
| 772 | outstream.open(filename.c_str());
|
---|
| 773 |
|
---|
| 774 | ViewCellContainer viewCells;
|
---|
[735] | 775 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 776 |
|
---|
[997] | 777 | int maxPvs, maxVal, minVal;
|
---|
[734] | 778 |
|
---|
[997] | 779 | // sort by pvs size
|
---|
[735] | 780 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 781 |
|
---|
[997] | 782 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
| 783 | minVal = 0;
|
---|
| 784 |
|
---|
[991] | 785 | // hack: normalize pvs size
|
---|
[997] | 786 | int histoMaxVal;
|
---|
[1004] | 787 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 788 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 789 |
|
---|
| 790 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 791 |
|
---|
[997] | 792 | int histoIntervals;
|
---|
[1004] | 793 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 794 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 795 |
|
---|
[997] | 796 | const int range = maxVal - minVal;
|
---|
[735] | 797 | int stepSize = range / intervals;
|
---|
| 798 |
|
---|
[997] | 799 | // set step size to avoid endless loop
|
---|
[735] | 800 | if (!stepSize) stepSize = 1;
|
---|
[979] | 801 |
|
---|
| 802 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 803 |
|
---|
[735] | 804 |
|
---|
| 805 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 806 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 807 |
|
---|
[997] | 808 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
[735] | 809 |
|
---|
[997] | 810 |
|
---|
[735] | 811 | int i = 0;
|
---|
| 812 | int j = 0;
|
---|
[734] | 813 |
|
---|
[744] | 814 | float volSum = 0;
|
---|
| 815 | int smallerSum = 0;
|
---|
| 816 |
|
---|
[735] | 817 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 818 |
|
---|
[997] | 819 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 820 | {
|
---|
[744] | 821 | float volDif = 0;
|
---|
| 822 | int smallerDif = 0;
|
---|
[736] | 823 |
|
---|
[997] | 824 | while ((i < (int)viewCells.size()) &&
|
---|
| 825 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
[735] | 826 | {
|
---|
[744] | 827 | volDif += viewCells[i]->GetVolume();
|
---|
| 828 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 829 |
|
---|
[735] | 830 | ++ i;
|
---|
[744] | 831 | ++ smallerDif;
|
---|
| 832 | ++ smallerSum;
|
---|
[735] | 833 | }
|
---|
[736] | 834 |
|
---|
[997] | 835 | if (0 && (i < (int)viewCells.size()))
|
---|
| 836 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i]) << " " << currentPvs << endl;
|
---|
| 837 |
|
---|
[744] | 838 | const float volRatioDif = volDif / totalVol;
|
---|
| 839 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 840 |
|
---|
[997] | 841 | outstream << "#Pass\n" << j << endl;
|
---|
| 842 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 843 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 844 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 845 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 846 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 847 |
|
---|
| 848 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 849 |
|
---|
[997] | 850 | //-- increase current pvs size to define next interval
|
---|
| 851 | currentPvs += stepSize;
|
---|
[728] | 852 | }
|
---|
[991] | 853 |
|
---|
[735] | 854 | outstream.close();
|
---|
[728] | 855 | }
|
---|
| 856 |
|
---|
[735] | 857 |
|
---|
[1002] | 858 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 859 | {
|
---|
| 860 | return mExportPvs;
|
---|
| 861 | }
|
---|
| 862 |
|
---|
| 863 |
|
---|
[664] | 864 | void ViewCellsManager::EvalViewCellPartition(Preprocessor *preprocessor)
|
---|
[660] | 865 | {
|
---|
| 866 | int samplesPerPass;
|
---|
| 867 | int numSamples;
|
---|
| 868 | int castSamples = 0;
|
---|
| 869 |
|
---|
[664] | 870 | char s[64];
|
---|
| 871 |
|
---|
[1004] | 872 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 873 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 874 |
|
---|
[664] | 875 | char statsPrefix[100];
|
---|
[1004] | 876 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 877 |
|
---|
[664] | 878 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 879 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 880 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 881 |
|
---|
[666] | 882 | // should directional sampling be used?
|
---|
[722] | 883 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 884 |
|
---|
[801] | 885 | cout << "reseting pvs ... ";
|
---|
| 886 |
|
---|
| 887 |
|
---|
[666] | 888 | bool startFromZero = true;
|
---|
| 889 |
|
---|
| 890 | // reset pvs and start over from zero
|
---|
| 891 | if (startFromZero)
|
---|
| 892 | {
|
---|
| 893 | mViewCellsTree->ResetPvs();
|
---|
| 894 | }
|
---|
| 895 | else // statistics without addidtional samples
|
---|
| 896 | {
|
---|
| 897 | cout << "compute new statistics ... ";
|
---|
| 898 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 899 | string fName = string(statsPrefix) + string(s);
|
---|
| 900 |
|
---|
| 901 | mViewCellsTree->ExportStats(fName);
|
---|
| 902 | cout << "finished" << endl;
|
---|
| 903 | }
|
---|
| 904 |
|
---|
[744] | 905 | cout << "finished" << endl;
|
---|
| 906 |
|
---|
| 907 | cout << "Evaluating view cell partition" << endl;
|
---|
| 908 |
|
---|
[660] | 909 | while (castSamples < numSamples)
|
---|
| 910 | {
|
---|
[664] | 911 | VssRayContainer evaluationSamples;
|
---|
[663] | 912 |
|
---|
[722] | 913 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 914 | /* dirSamples ?
|
---|
[664] | 915 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 916 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 917 | */
|
---|
[1004] | 918 | long startTime = GetTime();
|
---|
| 919 |
|
---|
[664] | 920 | //-- construction rays => we use uniform samples for this
|
---|
[1004] | 921 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 922 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 923 |
|
---|
[664] | 924 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 925 |
|
---|
| 926 | castSamples += samplesPerPass;
|
---|
| 927 |
|
---|
[1004] | 928 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 929 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 930 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 931 |
|
---|
[1004] | 932 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 933 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 934 |
|
---|
| 935 | startTime = GetTime();
|
---|
| 936 |
|
---|
[664] | 937 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 938 |
|
---|
[1004] | 939 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 940 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 941 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 942 |
|
---|
[1004] | 943 | startTime = GetTime();
|
---|
[801] | 944 |
|
---|
[1004] | 945 | cout << "compute new statistics ... ";
|
---|
| 946 | Debug << "compute new statistics ... ";
|
---|
| 947 |
|
---|
[801] | 948 | //-- propagate pvs or pvs size information
|
---|
[752] | 949 | ObjectPvs pvs;
|
---|
| 950 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 951 |
|
---|
[801] | 952 | //-- output stats
|
---|
[667] | 953 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 954 | string fileName = string(statsPrefix) + string(s);
|
---|
| 955 |
|
---|
| 956 | mViewCellsTree->ExportStats(fileName);
|
---|
| 957 |
|
---|
[1004] | 958 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 959 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 960 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 961 |
|
---|
[664] | 962 |
|
---|
| 963 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 964 | }
|
---|
[728] | 965 |
|
---|
[997] | 966 |
|
---|
| 967 | //-- histogram
|
---|
| 968 |
|
---|
[735] | 969 | bool useHisto;
|
---|
[997] | 970 | int histoStepSize;
|
---|
[693] | 971 |
|
---|
[1004] | 972 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 973 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 974 |
|
---|
[744] | 975 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 976 |
|
---|
| 977 |
|
---|
[735] | 978 | if (useHisto)
|
---|
[734] | 979 | {
|
---|
[735] | 980 | // evaluate view cells in a histogram
|
---|
| 981 | char s[64];
|
---|
| 982 |
|
---|
[997] | 983 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 984 | {
|
---|
[997] | 985 | string filename;
|
---|
[744] | 986 |
|
---|
[997] | 987 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 988 | #if 0
|
---|
[744] | 989 | //-- evaluate histogram for render cost
|
---|
| 990 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 991 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 992 |
|
---|
| 993 | EvalViewCellHistogram(filename, pass);
|
---|
| 994 |
|
---|
[997] | 995 | #endif
|
---|
[744] | 996 | //////////////////////////////////////////
|
---|
[752] | 997 | //-- evaluate histogram for pvs size
|
---|
[744] | 998 |
|
---|
| 999 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1000 |
|
---|
| 1001 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1002 | filename = string(statsPrefix) + string(s);
|
---|
| 1003 |
|
---|
| 1004 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1005 | }
|
---|
[734] | 1006 | }
|
---|
| 1007 |
|
---|
[693] | 1008 | // find empty view cells bug
|
---|
[694] | 1009 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
[719] | 1010 | {
|
---|
[694] | 1011 | TestEmptyViewCells(preprocessor->mObjects);
|
---|
[719] | 1012 | }
|
---|
[660] | 1013 | }
|
---|
| 1014 |
|
---|
[704] | 1015 |
|
---|
| 1016 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1017 | {
|
---|
[704] | 1018 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1019 | }
|
---|
[660] | 1020 |
|
---|
[703] | 1021 |
|
---|
[728] | 1022 | // Returns index of the best view cells of the neighborhood
|
---|
[704] | 1023 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 1024 | {
|
---|
[705] | 1025 | int bestViewCellIdx = 0;
|
---|
[703] | 1026 |
|
---|
[704] | 1027 | float mergeCost = Limits::Infinity;
|
---|
| 1028 | int i = 0;
|
---|
[703] | 1029 |
|
---|
[734] | 1030 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1031 |
|
---|
[734] | 1032 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1033 | {
|
---|
[734] | 1034 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1035 |
|
---|
| 1036 | if (mc < mergeCost)
|
---|
[704] | 1037 | {
|
---|
| 1038 | mergeCost = mc;
|
---|
| 1039 | bestViewCellIdx = i;
|
---|
[703] | 1040 | }
|
---|
[704] | 1041 | }
|
---|
[703] | 1042 |
|
---|
[704] | 1043 | return bestViewCellIdx;
|
---|
| 1044 | }
|
---|
[703] | 1045 |
|
---|
| 1046 |
|
---|
[728] | 1047 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1048 | {
|
---|
| 1049 | mMaxFilterSize = size;
|
---|
| 1050 | }
|
---|
| 1051 |
|
---|
| 1052 |
|
---|
| 1053 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1054 | {
|
---|
| 1055 | switch (mRenderCostEvaluationType)
|
---|
| 1056 | {
|
---|
| 1057 | case PER_OBJECT:
|
---|
[752] | 1058 | //cout << "perobject" << endl;
|
---|
| 1059 | return 1.0f;
|
---|
[728] | 1060 |
|
---|
| 1061 | case PER_TRIANGLE:
|
---|
[735] | 1062 | {cout << "pertriangle" << endl;
|
---|
[728] | 1063 | // HACK
|
---|
| 1064 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1065 |
|
---|
| 1066 | // HACK: assume meshes are triangles
|
---|
| 1067 | if (mi->GetMesh())
|
---|
| 1068 | {
|
---|
| 1069 | return mi->GetMesh()->mFaces.size();
|
---|
| 1070 | }
|
---|
| 1071 | }
|
---|
| 1072 | default:
|
---|
[752] | 1073 | cout << "default" << endl;
|
---|
| 1074 | return 1.0f;
|
---|
[728] | 1075 | }
|
---|
| 1076 |
|
---|
| 1077 | // should not come here
|
---|
[752] | 1078 | return 0.0f;
|
---|
[728] | 1079 | }
|
---|
| 1080 |
|
---|
| 1081 |
|
---|
[704] | 1082 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1083 | const ViewCellContainer &viewCells)
|
---|
| 1084 | {
|
---|
| 1085 | ViewCell *root = currentViewCell;
|
---|
| 1086 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1087 |
|
---|
[704] | 1088 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1089 |
|
---|
[704] | 1090 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1091 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 1092 |
|
---|
[705] | 1093 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 1094 | //const float maxAvgCost = 350;
|
---|
| 1095 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1096 | {
|
---|
[704] | 1097 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1098 |
|
---|
[704] | 1099 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1100 |
|
---|
[704] | 1101 | // remove from vector
|
---|
| 1102 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1103 | neighborhood.pop_back();
|
---|
[705] | 1104 |
|
---|
[713] | 1105 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 1106 | if (!bestViewCell || !root)
|
---|
| 1107 | cout << "warning!!" << endl;
|
---|
[705] | 1108 |
|
---|
[704] | 1109 | // create new root of the hierarchy
|
---|
| 1110 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1111 | }
|
---|
| 1112 |
|
---|
[704] | 1113 | return root;
|
---|
[703] | 1114 | }
|
---|
| 1115 |
|
---|
[704] | 1116 |
|
---|
[713] | 1117 | struct SortableViewCellEntry {
|
---|
| 1118 |
|
---|
| 1119 | SortableViewCellEntry() {}
|
---|
| 1120 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
| 1121 |
|
---|
| 1122 | float mValue;
|
---|
| 1123 | ViewCell *mViewCell;
|
---|
| 1124 |
|
---|
| 1125 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1126 | return a.mValue < b.mValue;
|
---|
| 1127 | }
|
---|
| 1128 | };
|
---|
| 1129 |
|
---|
| 1130 | ViewCell *
|
---|
| 1131 | ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1132 | const ViewCellContainer &viewCells)
|
---|
| 1133 | {
|
---|
| 1134 |
|
---|
| 1135 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1136 | int i, j;
|
---|
| 1137 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1138 | if (viewCells[i] != currentViewCell)
|
---|
| 1139 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1140 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1141 | viewCells[i]);
|
---|
| 1142 | }
|
---|
| 1143 | neighborhood.resize(j);
|
---|
| 1144 |
|
---|
| 1145 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1146 |
|
---|
| 1147 | ViewCell *root = currentViewCell;
|
---|
| 1148 |
|
---|
| 1149 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1150 |
|
---|
| 1151 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1152 | //-- use priority queue to merge leaf pairs
|
---|
| 1153 |
|
---|
| 1154 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1155 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1156 | {
|
---|
[713] | 1157 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1158 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1159 | // create new root of the hierarchy
|
---|
| 1160 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1161 | // set negative cost so that this view cell gets deleted
|
---|
| 1162 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1163 | }
|
---|
[713] | 1164 |
|
---|
| 1165 | return root;
|
---|
| 1166 | }
|
---|
| 1167 |
|
---|
| 1168 | void
|
---|
| 1169 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1170 | ) const
|
---|
| 1171 | {
|
---|
| 1172 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 1173 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1174 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1175 |
|
---|
| 1176 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1177 | DeleteLocalMergeTree(*it);
|
---|
| 1178 | vci->mChildren.clear();
|
---|
| 1179 | delete vci;
|
---|
| 1180 | }
|
---|
| 1181 | }
|
---|
| 1182 |
|
---|
[1021] | 1183 |
|
---|
[564] | 1184 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1185 | int minPvsSize,
|
---|
[562] | 1186 | int maxPvsSize) const
|
---|
[547] | 1187 | {
|
---|
[569] | 1188 |
|
---|
[710] | 1189 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
|
---|
| 1190 | (vc->GetPvs().GetSize() < minPvsSize))
|
---|
[564] | 1191 | {
|
---|
[710] | 1192 | return false;
|
---|
[561] | 1193 | }
|
---|
[570] | 1194 |
|
---|
[710] | 1195 | return true;
|
---|
[547] | 1196 | }
|
---|
| 1197 |
|
---|
| 1198 |
|
---|
[710] | 1199 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1200 | ViewCellContainer &viewCells) const
|
---|
| 1201 | {
|
---|
| 1202 | return 0;
|
---|
| 1203 | };
|
---|
| 1204 |
|
---|
[1021] | 1205 |
|
---|
[697] | 1206 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1207 | const float width) const
|
---|
| 1208 | {
|
---|
[746] | 1209 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1210 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1211 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1212 |
|
---|
| 1213 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1214 | }
|
---|
| 1215 |
|
---|
| 1216 |
|
---|
[904] | 1217 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1218 | PrVs &prvs,
|
---|
| 1219 | const float filterWidth)
|
---|
[697] | 1220 | {
|
---|
[904] | 1221 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
[746] | 1222 |
|
---|
| 1223 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1224 |
|
---|
[746] | 1225 | if (currentViewCell) {
|
---|
[697] | 1226 | ViewCellContainer viewCells;
|
---|
| 1227 | ComputeBoxIntersections(box, viewCells);
|
---|
[746] | 1228 |
|
---|
[713] | 1229 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1230 | prvs.mViewCell = root;
|
---|
[746] | 1231 | } else
|
---|
| 1232 | prvs.mViewCell = NULL;
|
---|
| 1233 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1234 | }
|
---|
| 1235 |
|
---|
| 1236 |
|
---|
[581] | 1237 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1238 | {
|
---|
[1002] | 1239 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1240 | }
|
---|
| 1241 |
|
---|
| 1242 |
|
---|
[564] | 1243 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1244 | int minPvs,
|
---|
[562] | 1245 | int maxPvs) const
|
---|
| 1246 | {
|
---|
| 1247 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1248 | }
|
---|
| 1249 |
|
---|
[577] | 1250 |
|
---|
[569] | 1251 | void
|
---|
| 1252 | ViewCellsManager::SetValidity(
|
---|
[570] | 1253 | int minPvsSize,
|
---|
[569] | 1254 | int maxPvsSize) const
|
---|
| 1255 | {
|
---|
[991] | 1256 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1257 |
|
---|
[991] | 1258 |
|
---|
| 1259 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1260 | {
|
---|
| 1261 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1262 | }
|
---|
[569] | 1263 | }
|
---|
[562] | 1264 |
|
---|
[569] | 1265 | void
|
---|
| 1266 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1267 | const float minValid,
|
---|
| 1268 | const float maxValid
|
---|
| 1269 | )
|
---|
| 1270 | {
|
---|
[997] | 1271 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1272 |
|
---|
[997] | 1273 | int start = mViewCells.size()*minValid;
|
---|
| 1274 | int end = mViewCells.size()*maxValid;
|
---|
[570] | 1275 |
|
---|
[997] | 1276 | for (int i = 0; i < mViewCells.size(); ++ i)
|
---|
| 1277 | {
|
---|
| 1278 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1279 | }
|
---|
[569] | 1280 | }
|
---|
| 1281 |
|
---|
[991] | 1282 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1283 | {
|
---|
[991] | 1284 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1285 | int valid = 0;
|
---|
| 1286 |
|
---|
| 1287 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1288 | {
|
---|
| 1289 | if ((*it)->GetValid())
|
---|
| 1290 | ++ valid;
|
---|
| 1291 | }
|
---|
| 1292 |
|
---|
| 1293 | return valid;
|
---|
[569] | 1294 | }
|
---|
| 1295 |
|
---|
[577] | 1296 |
|
---|
| 1297 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1298 | {
|
---|
| 1299 | X3dParser parser;
|
---|
[503] | 1300 |
|
---|
[1004] | 1301 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1302 |
|
---|
[440] | 1303 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1304 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1305 |
|
---|
| 1306 | return success;
|
---|
| 1307 | }
|
---|
| 1308 |
|
---|
[485] | 1309 |
|
---|
[487] | 1310 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1311 | {
|
---|
[542] | 1312 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1313 | return true;
|
---|
| 1314 | }
|
---|
| 1315 |
|
---|
| 1316 |
|
---|
[557] | 1317 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1318 | {
|
---|
[610] | 1319 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1320 | }
|
---|
| 1321 |
|
---|
| 1322 |
|
---|
[490] | 1323 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1324 | {
|
---|
[569] | 1325 | if (!ViewCellsConstructed())
|
---|
[837] | 1326 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1327 | else
|
---|
| 1328 | {
|
---|
| 1329 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1330 | return false;
|
---|
| 1331 |
|
---|
| 1332 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1333 |
|
---|
| 1334 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1335 | return false;
|
---|
[569] | 1336 | }
|
---|
[837] | 1337 |
|
---|
[569] | 1338 | return true;
|
---|
[490] | 1339 | }
|
---|
| 1340 |
|
---|
[501] | 1341 |
|
---|
[563] | 1342 | float
|
---|
| 1343 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[574] | 1344 | const bool addRays,
|
---|
| 1345 | const bool storeViewCells
|
---|
[563] | 1346 | )
|
---|
[440] | 1347 | {
|
---|
[563] | 1348 | // view cells not yet constructed
|
---|
| 1349 | if (!ViewCellsConstructed())
|
---|
| 1350 | return 0.0f;
|
---|
[564] | 1351 |
|
---|
[563] | 1352 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 1353 |
|
---|
[563] | 1354 | float sum = 0.0f;
|
---|
[664] | 1355 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1356 | {
|
---|
| 1357 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
|
---|
| 1358 | //ComputeSampleContributions(*(*it), addRays);
|
---|
| 1359 | // sum += (*it)->mPvsContribution;
|
---|
[563] | 1360 | }
|
---|
[664] | 1361 |
|
---|
[563] | 1362 | return sum;
|
---|
[440] | 1363 | }
|
---|
| 1364 |
|
---|
[485] | 1365 |
|
---|
[479] | 1366 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1367 | {
|
---|
[660] | 1368 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1369 |
|
---|
| 1370 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1371 |
|
---|
| 1372 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1373 | {
|
---|
[660] | 1374 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1375 | }
|
---|
[479] | 1376 | }
|
---|
| 1377 |
|
---|
[485] | 1378 |
|
---|
[580] | 1379 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1380 | float &expectedRenderCost,
|
---|
[580] | 1381 | float &deviation,
|
---|
| 1382 | float &variance,
|
---|
| 1383 | int &totalPvs,
|
---|
| 1384 | float &avgRenderCost)
|
---|
[579] | 1385 | {
|
---|
| 1386 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1387 |
|
---|
| 1388 | //-- compute expected value
|
---|
| 1389 | totalRenderCost = 0;
|
---|
[580] | 1390 | totalPvs = 0;
|
---|
[579] | 1391 |
|
---|
| 1392 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1393 | {
|
---|
| 1394 | ViewCell *vc = *it;
|
---|
| 1395 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1396 | totalPvs += (int)vc->GetPvs().GetSize();
|
---|
[579] | 1397 | }
|
---|
| 1398 |
|
---|
[580] | 1399 | // normalize with view space box
|
---|
| 1400 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1401 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1402 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1403 |
|
---|
| 1404 |
|
---|
[580] | 1405 | //-- compute standard defiation
|
---|
[579] | 1406 | variance = 0;
|
---|
[580] | 1407 | deviation = 0;
|
---|
[579] | 1408 |
|
---|
| 1409 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1410 | {
|
---|
| 1411 | ViewCell *vc = *it;
|
---|
| 1412 |
|
---|
| 1413 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1414 | float dev;
|
---|
[579] | 1415 |
|
---|
[580] | 1416 | if (1)
|
---|
| 1417 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
| 1418 | else
|
---|
| 1419 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1420 |
|
---|
[580] | 1421 | deviation += dev;
|
---|
| 1422 | variance += dev * dev;
|
---|
[579] | 1423 | }
|
---|
[580] | 1424 |
|
---|
[579] | 1425 | variance /= (float)mViewCells.size();
|
---|
[580] | 1426 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1427 | }
|
---|
| 1428 |
|
---|
| 1429 |
|
---|
| 1430 |
|
---|
[440] | 1431 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1432 | {
|
---|
| 1433 | mViewCells.push_back(viewCell);
|
---|
| 1434 | }
|
---|
| 1435 |
|
---|
[485] | 1436 |
|
---|
[478] | 1437 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1438 | {
|
---|
| 1439 | return viewCell->GetArea();
|
---|
| 1440 | }
|
---|
| 1441 |
|
---|
| 1442 |
|
---|
| 1443 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1444 | {
|
---|
| 1445 | return viewCell->GetVolume();
|
---|
| 1446 | }
|
---|
| 1447 |
|
---|
[485] | 1448 |
|
---|
[1002] | 1449 | void ViewCellsManager::DeriveViewCellsFromObjects(const ObjectContainer &objects,
|
---|
| 1450 | ViewCellContainer &viewCells,
|
---|
| 1451 | const int maxViewCells) const
|
---|
[440] | 1452 | {
|
---|
| 1453 | // maximal max viewcells
|
---|
[503] | 1454 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1455 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1456 |
|
---|
| 1457 | for (int i = 0; i < limit; ++ i)
|
---|
| 1458 | {
|
---|
| 1459 | Intersectable *object = objects[i];
|
---|
[503] | 1460 |
|
---|
[440] | 1461 | // extract the mesh instances
|
---|
| 1462 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1463 | {
|
---|
| 1464 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1465 |
|
---|
| 1466 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1467 | viewCells.push_back(viewCell);
|
---|
| 1468 | }
|
---|
[1001] | 1469 | else if (object->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
| 1470 | {
|
---|
| 1471 | TransformedMeshInstance *mi = dynamic_cast<TransformedMeshInstance *>(object);
|
---|
| 1472 |
|
---|
| 1473 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1002] | 1474 |
|
---|
[1001] | 1475 | // transform mesh
|
---|
[1002] | 1476 | mi->GetTransformedMesh(*mesh);
|
---|
[1001] | 1477 |
|
---|
| 1478 | // create bb + kd tree
|
---|
| 1479 | mesh->Preprocess();
|
---|
| 1480 |
|
---|
| 1481 | ViewCell *viewCell = GenerateViewCell(mi->GetMesh());
|
---|
| 1482 | viewCells.push_back(viewCell);
|
---|
| 1483 |
|
---|
| 1484 | break;
|
---|
| 1485 | }
|
---|
[440] | 1486 | }
|
---|
| 1487 | }
|
---|
| 1488 |
|
---|
[485] | 1489 |
|
---|
[503] | 1490 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1491 | const float height) const
|
---|
| 1492 | {
|
---|
| 1493 | // one mesh per view cell
|
---|
[1001] | 1494 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1495 |
|
---|
[440] | 1496 | //-- construct prism
|
---|
| 1497 |
|
---|
[503] | 1498 | // bottom
|
---|
[440] | 1499 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1500 | // top
|
---|
| 1501 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1502 | // sides
|
---|
| 1503 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1504 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1505 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1506 |
|
---|
| 1507 | //--- extrude new vertices for top of prism
|
---|
| 1508 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1509 |
|
---|
[503] | 1510 | Triangle3 topTri;
|
---|
[440] | 1511 |
|
---|
| 1512 | // add base vertices and calculate top vertices
|
---|
| 1513 | for (int i = 0; i < 3; ++ i)
|
---|
| 1514 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1515 |
|
---|
| 1516 | // add top vertices
|
---|
[440] | 1517 | for (int i = 0; i < 3; ++ i)
|
---|
| 1518 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1519 |
|
---|
[440] | 1520 | mesh->Preprocess();
|
---|
| 1521 |
|
---|
| 1522 | return GenerateViewCell(mesh);
|
---|
| 1523 | }
|
---|
| 1524 |
|
---|
[485] | 1525 |
|
---|
[551] | 1526 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1527 | {
|
---|
| 1528 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1529 |
|
---|
| 1530 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1531 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1532 | {
|
---|
| 1533 | Finalize(*it, createMesh);
|
---|
| 1534 | }
|
---|
[555] | 1535 |
|
---|
| 1536 | mTotalAreaValid = false;
|
---|
[551] | 1537 | }
|
---|
| 1538 |
|
---|
| 1539 |
|
---|
| 1540 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1541 | {
|
---|
| 1542 | // implemented in subclasses
|
---|
| 1543 | }
|
---|
| 1544 |
|
---|
[1001] | 1545 |
|
---|
[752] | 1546 | // fast way of merging 2 view cells
|
---|
[582] | 1547 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1548 | {
|
---|
[580] | 1549 | // generate parent view cell
|
---|
[752] | 1550 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1551 |
|
---|
[752] | 1552 | vc->GetPvs().Clear();
|
---|
[610] | 1553 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1554 |
|
---|
| 1555 | // merge pvs of right cell
|
---|
[610] | 1556 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1557 |
|
---|
[462] | 1558 | //-- merge ray sets
|
---|
[564] | 1559 | if (0)
|
---|
| 1560 | {
|
---|
[582] | 1561 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1562 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1563 |
|
---|
[582] | 1564 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1565 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1566 | vc->mPiercingRays.begin());
|
---|
| 1567 | }
|
---|
[440] | 1568 |
|
---|
[710] | 1569 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1570 | vc->mChildren.push_back(left);
|
---|
| 1571 | vc->mChildren.push_back(right);
|
---|
| 1572 |
|
---|
[752] | 1573 | // update pvs size
|
---|
| 1574 | vc->mPvsSize = vc->GetPvs().GetSize();
|
---|
| 1575 | vc->mPvsSizeValid = true;
|
---|
| 1576 |
|
---|
[440] | 1577 | return vc;
|
---|
| 1578 | }
|
---|
| 1579 |
|
---|
[485] | 1580 |
|
---|
[582] | 1581 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1582 | {
|
---|
[752] | 1583 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1584 |
|
---|
| 1585 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1586 |
|
---|
| 1587 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1588 | {
|
---|
| 1589 | // merge pvs
|
---|
[610] | 1590 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1591 | vc->mChildren.push_back(*it);
|
---|
[582] | 1592 | }
|
---|
| 1593 |
|
---|
| 1594 | return vc;
|
---|
| 1595 | }
|
---|
| 1596 |
|
---|
| 1597 |
|
---|
[480] | 1598 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1599 | {
|
---|
| 1600 | mRenderer = renderer;
|
---|
| 1601 | }
|
---|
[441] | 1602 |
|
---|
[485] | 1603 |
|
---|
[580] | 1604 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1605 | {
|
---|
[580] | 1606 | return mViewCellsTree;
|
---|
[440] | 1607 | }
|
---|
| 1608 |
|
---|
| 1609 |
|
---|
| 1610 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1611 | {
|
---|
[444] | 1612 | mVisualizationSamples = visSamples;
|
---|
[440] | 1613 | }
|
---|
| 1614 |
|
---|
[485] | 1615 |
|
---|
[440] | 1616 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1617 | {
|
---|
| 1618 | mConstructionSamples = constructionSamples;
|
---|
| 1619 | }
|
---|
| 1620 |
|
---|
[485] | 1621 |
|
---|
[574] | 1622 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1623 | {
|
---|
| 1624 | mInitialSamples = initialSamples;
|
---|
| 1625 | }
|
---|
| 1626 |
|
---|
| 1627 |
|
---|
[440] | 1628 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1629 | {
|
---|
| 1630 | mPostProcessSamples = postProcessSamples;
|
---|
| 1631 | }
|
---|
| 1632 |
|
---|
[485] | 1633 |
|
---|
[440] | 1634 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1635 | {
|
---|
| 1636 | return mVisualizationSamples;
|
---|
| 1637 | }
|
---|
| 1638 |
|
---|
[485] | 1639 |
|
---|
[440] | 1640 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1641 | {
|
---|
| 1642 | return mConstructionSamples;
|
---|
| 1643 | }
|
---|
| 1644 |
|
---|
[485] | 1645 |
|
---|
[440] | 1646 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1647 | {
|
---|
| 1648 | return mPostProcessSamples;
|
---|
| 1649 | }
|
---|
| 1650 |
|
---|
[485] | 1651 |
|
---|
[719] | 1652 | void ViewCellsManager::UpdatePvs()
|
---|
| 1653 | {
|
---|
[720] | 1654 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1655 | return;
|
---|
| 1656 |
|
---|
| 1657 | mViewCellPvsIsUpdated = true;
|
---|
| 1658 |
|
---|
| 1659 | ViewCellContainer leaves;
|
---|
| 1660 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1661 |
|
---|
| 1662 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1663 |
|
---|
| 1664 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1665 | {
|
---|
| 1666 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1667 | }
|
---|
| 1668 | }
|
---|
| 1669 |
|
---|
| 1670 |
|
---|
[485] | 1671 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1672 | {
|
---|
[719] | 1673 | // update pvs of view cells tree if necessary
|
---|
| 1674 | UpdatePvs();
|
---|
[467] | 1675 |
|
---|
[719] | 1676 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1677 |
|
---|
| 1678 | stat.viewcells = 0;
|
---|
| 1679 | stat.minPvs = 100000000;
|
---|
| 1680 | stat.maxPvs = 0;
|
---|
| 1681 | stat.avgPvs = 0.0f;
|
---|
| 1682 |
|
---|
| 1683 | for (; it != mViewCells.end(); ++ it)
|
---|
| 1684 | {
|
---|
| 1685 | ViewCell *viewcell = *it;
|
---|
| 1686 |
|
---|
| 1687 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
| 1688 |
|
---|
| 1689 | if (pvsSize < stat.minPvs)
|
---|
| 1690 | stat.minPvs = pvsSize;
|
---|
| 1691 | if (pvsSize > stat.maxPvs)
|
---|
| 1692 | stat.maxPvs = pvsSize;
|
---|
| 1693 | stat.avgPvs += pvsSize;
|
---|
| 1694 |
|
---|
| 1695 | ++ stat.viewcells;
|
---|
| 1696 | }
|
---|
| 1697 |
|
---|
| 1698 | if (stat.viewcells)
|
---|
| 1699 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1700 | }
|
---|
| 1701 |
|
---|
[485] | 1702 |
|
---|
[480] | 1703 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1704 | {
|
---|
| 1705 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1706 | PvsStatistics pvsStat;
|
---|
| 1707 | GetPvsStatistics(pvsStat);
|
---|
| 1708 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1709 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1710 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1711 | }
|
---|
| 1712 |
|
---|
[485] | 1713 |
|
---|
[532] | 1714 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1715 | {
|
---|
| 1716 | return 0;
|
---|
| 1717 | }
|
---|
| 1718 |
|
---|
[547] | 1719 |
|
---|
[468] | 1720 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1721 | {
|
---|
| 1722 | return mViewCells;
|
---|
| 1723 | }
|
---|
| 1724 |
|
---|
[485] | 1725 |
|
---|
[487] | 1726 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1727 | {
|
---|
[542] | 1728 | mViewSpaceBox = box;
|
---|
[1027] | 1729 | Debug << "here111 " << mViewSpaceBox << endl;
|
---|
| 1730 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1731 | CreateClipPlane();
|
---|
[1027] | 1732 | // the total area of the view space has changed
|
---|
[577] | 1733 | mTotalAreaValid = false;
|
---|
[487] | 1734 | }
|
---|
| 1735 |
|
---|
| 1736 |
|
---|
[660] | 1737 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1738 | {
|
---|
| 1739 | int axis = 0;
|
---|
[667] | 1740 | float pos;
|
---|
[591] | 1741 |
|
---|
[1004] | 1742 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1743 |
|
---|
[667] | 1744 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1745 |
|
---|
[660] | 1746 | if (mUseClipPlaneForViz)
|
---|
[1004] | 1747 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1748 |
|
---|
[1047] | 1749 | mClipPlane = AxisAlignedPlane(axis, point[axis]);
|
---|
[591] | 1750 | }
|
---|
| 1751 |
|
---|
| 1752 |
|
---|
[519] | 1753 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1754 | {
|
---|
[542] | 1755 | return mViewSpaceBox;
|
---|
[519] | 1756 | }
|
---|
| 1757 |
|
---|
| 1758 |
|
---|
[480] | 1759 | void ViewCellsManager::ResetViewCells()
|
---|
| 1760 | {
|
---|
[720] | 1761 | // recollect view cells
|
---|
[480] | 1762 | mViewCells.clear();
|
---|
| 1763 | CollectViewCells();
|
---|
[590] | 1764 |
|
---|
[720] | 1765 |
|
---|
| 1766 | // stats are computed once more
|
---|
[660] | 1767 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1768 | EvaluateViewCellsStats();
|
---|
[590] | 1769 |
|
---|
[520] | 1770 | // has to be recomputed
|
---|
[480] | 1771 | mTotalAreaValid = false;
|
---|
| 1772 | }
|
---|
| 1773 |
|
---|
[485] | 1774 |
|
---|
[547] | 1775 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1776 | {
|
---|
| 1777 | return mMaxPvsSize;
|
---|
| 1778 | }
|
---|
| 1779 |
|
---|
[590] | 1780 |
|
---|
[563] | 1781 | void
|
---|
| 1782 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1783 | {
|
---|
| 1784 | if (!ViewCellsConstructed())
|
---|
| 1785 | return;
|
---|
[564] | 1786 |
|
---|
[563] | 1787 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1788 |
|
---|
[563] | 1789 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1790 | AddSampleContributions(*(*it));
|
---|
| 1791 | }
|
---|
| 1792 | }
|
---|
[547] | 1793 |
|
---|
[581] | 1794 |
|
---|
[562] | 1795 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1796 | {
|
---|
| 1797 | return mMinPvsSize;
|
---|
| 1798 | }
|
---|
| 1799 |
|
---|
| 1800 |
|
---|
| 1801 |
|
---|
[561] | 1802 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1803 | {
|
---|
| 1804 | return mMaxPvsRatio;
|
---|
| 1805 | }
|
---|
| 1806 |
|
---|
| 1807 |
|
---|
[563] | 1808 | void
|
---|
| 1809 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1810 | {
|
---|
[563] | 1811 | // assumes viewcells have been stored...
|
---|
| 1812 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1813 | ViewCellContainer::const_iterator it;
|
---|
| 1814 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1815 | ViewCell *viewcell = *it;
|
---|
[569] | 1816 | if (viewcell->GetValid()) {
|
---|
| 1817 | // if ray not outside of view space
|
---|
| 1818 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1819 | }
|
---|
[563] | 1820 | }
|
---|
| 1821 | }
|
---|
[503] | 1822 |
|
---|
[574] | 1823 |
|
---|
[570] | 1824 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
[574] | 1825 | const bool addRays,
|
---|
| 1826 | const bool storeViewCells)
|
---|
[563] | 1827 | {
|
---|
[570] | 1828 | ViewCellContainer viewcells;
|
---|
[564] | 1829 |
|
---|
[570] | 1830 | ray.mPvsContribution = 0;
|
---|
| 1831 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1832 |
|
---|
[570] | 1833 | static Ray hray;
|
---|
[564] | 1834 | hray.Init(ray);
|
---|
| 1835 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1836 | //Ray hray(ray);
|
---|
| 1837 |
|
---|
| 1838 | float tmin = 0, tmax = 1.0;
|
---|
| 1839 |
|
---|
| 1840 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1841 | return 0;
|
---|
[564] | 1842 |
|
---|
| 1843 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1844 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1845 |
|
---|
[1006] | 1846 | // traverse the view space subdivision
|
---|
[564] | 1847 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1848 |
|
---|
[574] | 1849 | //const bool storeViewcells = !addRays;
|
---|
[1006] | 1850 | //return 0;
|
---|
[574] | 1851 | if (storeViewCells)
|
---|
[570] | 1852 | {
|
---|
[1006] | 1853 | // copy viewcells memory efficiently
|
---|
[570] | 1854 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1855 | ray.mViewCells = viewcells;
|
---|
| 1856 | }
|
---|
[564] | 1857 |
|
---|
[570] | 1858 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1859 |
|
---|
[664] | 1860 | for (; it != viewcells.end(); ++ it)
|
---|
| 1861 | {
|
---|
| 1862 | ViewCell *viewcell = *it;
|
---|
[694] | 1863 |
|
---|
[708] | 1864 | if (viewcell->GetValid())
|
---|
[664] | 1865 | {
|
---|
| 1866 | // if ray not outside of view space
|
---|
| 1867 | float contribution;
|
---|
[666] | 1868 | if (ray.mTerminationObject &&
|
---|
| 1869 | viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
[664] | 1870 | ray.mPdf,
|
---|
| 1871 | contribution))
|
---|
| 1872 | {
|
---|
| 1873 | ++ ray.mPvsContribution;
|
---|
| 1874 | ray.mRelativePvsContribution += contribution;
|
---|
| 1875 | }
|
---|
[718] | 1876 |
|
---|
[840] | 1877 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1878 | // made in one direction!!!
|
---|
| 1879 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
| 1880 | #if 0
|
---|
[666] | 1881 | if (ray.mOriginObject &&
|
---|
| 1882 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1883 | ray.mPdf,
|
---|
| 1884 | contribution))
|
---|
| 1885 | {
|
---|
| 1886 | ++ ray.mPvsContribution;
|
---|
| 1887 | ray.mRelativePvsContribution += contribution;
|
---|
| 1888 | }
|
---|
[718] | 1889 | #endif
|
---|
[664] | 1890 | }
|
---|
[569] | 1891 | }
|
---|
[564] | 1892 |
|
---|
[664] | 1893 |
|
---|
| 1894 | if (addRays)
|
---|
| 1895 | {
|
---|
| 1896 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1897 | {
|
---|
| 1898 | ViewCell *viewcell = *it;
|
---|
| 1899 |
|
---|
[706] | 1900 | if (viewcell->GetValid())
|
---|
[664] | 1901 | {
|
---|
| 1902 | // if ray not outside of view space
|
---|
[666] | 1903 | if (ray.mTerminationObject)
|
---|
| 1904 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
[718] | 1905 |
|
---|
| 1906 | #if 0
|
---|
[666] | 1907 | if (ray.mOriginObject)
|
---|
| 1908 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[718] | 1909 | #endif
|
---|
[664] | 1910 | }
|
---|
| 1911 | }
|
---|
[563] | 1912 | }
|
---|
[570] | 1913 |
|
---|
| 1914 | return ray.mRelativePvsContribution;
|
---|
[468] | 1915 | }
|
---|
| 1916 |
|
---|
| 1917 |
|
---|
[469] | 1918 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1919 | const int maxSize,
|
---|
[503] | 1920 | VssRayContainer &usedRays,
|
---|
[485] | 1921 | VssRayContainer *savedRays) const
|
---|
[469] | 1922 | {
|
---|
[485] | 1923 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1924 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1925 |
|
---|
[485] | 1926 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1927 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1928 | {
|
---|
[473] | 1929 | if (Random(1.0f) < prop)
|
---|
[485] | 1930 | usedRays.push_back(*it);
|
---|
| 1931 | else if (savedRays)
|
---|
| 1932 | savedRays->push_back(*it);
|
---|
[469] | 1933 | }
|
---|
| 1934 | }
|
---|
| 1935 |
|
---|
[477] | 1936 |
|
---|
[728] | 1937 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1938 | {
|
---|
[728] | 1939 | return mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1940 | }
|
---|
| 1941 |
|
---|
| 1942 |
|
---|
[477] | 1943 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1944 | {
|
---|
| 1945 | // if already computed
|
---|
| 1946 | if (mTotalAreaValid)
|
---|
[728] | 1947 | {
|
---|
[470] | 1948 | return mTotalArea;
|
---|
[728] | 1949 | }
|
---|
[470] | 1950 |
|
---|
| 1951 | mTotalArea = 0;
|
---|
| 1952 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1953 |
|
---|
| 1954 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1955 | {
|
---|
| 1956 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1957 | mTotalArea += GetArea(*it);
|
---|
[480] | 1958 | }
|
---|
| 1959 |
|
---|
[470] | 1960 | mTotalAreaValid = true;
|
---|
| 1961 |
|
---|
| 1962 | return mTotalArea;
|
---|
| 1963 | }
|
---|
| 1964 |
|
---|
[482] | 1965 |
|
---|
[475] | 1966 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1967 | {
|
---|
[660] | 1968 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1969 | }
|
---|
| 1970 |
|
---|
[477] | 1971 |
|
---|
[508] | 1972 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 1973 | {
|
---|
[651] | 1974 | if (ViewCellsTreeConstructed())
|
---|
| 1975 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 1976 | else
|
---|
| 1977 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 1978 | mViewCells[i]->SetId(i);
|
---|
[508] | 1979 | }
|
---|
| 1980 |
|
---|
| 1981 |
|
---|
| 1982 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 1983 | {
|
---|
[482] | 1984 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1985 |
|
---|
| 1986 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1987 | {
|
---|
[574] | 1988 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 1989 | {
|
---|
[801] | 1990 | ExportColor(exporter, *it);
|
---|
| 1991 |
|
---|
[591] | 1992 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 1993 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 1994 | }
|
---|
[482] | 1995 | }
|
---|
| 1996 | }
|
---|
| 1997 |
|
---|
| 1998 |
|
---|
[517] | 1999 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2000 | {
|
---|
| 2001 | // convert to meshes
|
---|
| 2002 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2003 |
|
---|
| 2004 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2005 | {
|
---|
[517] | 2006 | if (!(*it)->GetMesh())
|
---|
[1001] | 2007 | {
|
---|
[517] | 2008 | CreateMesh(*it);
|
---|
[1001] | 2009 | }
|
---|
[503] | 2010 | }
|
---|
| 2011 | }
|
---|
| 2012 |
|
---|
[508] | 2013 |
|
---|
[944] | 2014 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2015 | const bool exportPvs,
|
---|
| 2016 | const ObjectContainer &objects)
|
---|
[564] | 2017 | {
|
---|
[508] | 2018 | return false;
|
---|
| 2019 | }
|
---|
| 2020 |
|
---|
| 2021 |
|
---|
[610] | 2022 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2023 | {
|
---|
[610] | 2024 | mNumActiveViewCells = n;
|
---|
| 2025 | mViewCells.clear();
|
---|
| 2026 | CollectViewCells();
|
---|
| 2027 | }
|
---|
[508] | 2028 |
|
---|
| 2029 |
|
---|
[660] | 2030 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2031 | {
|
---|
[882] | 2032 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2033 | // active view cells
|
---|
[660] | 2034 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2035 |
|
---|
[660] | 2036 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2037 | {
|
---|
[881] | 2038 | ViewCellContainer leaves;
|
---|
| 2039 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2040 |
|
---|
| 2041 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2042 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2043 | {
|
---|
| 2044 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2045 | }
|
---|
[660] | 2046 | }
|
---|
| 2047 | }
|
---|
[508] | 2048 |
|
---|
[840] | 2049 |
|
---|
| 2050 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2051 | {
|
---|
| 2052 | return mMaxFilterSize;
|
---|
| 2053 | }
|
---|
| 2054 |
|
---|
[1001] | 2055 |
|
---|
[840] | 2056 | static const bool USE_ASCII = true;
|
---|
| 2057 |
|
---|
[1001] | 2058 |
|
---|
[840] | 2059 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2060 | const ObjectContainer &objects) const
|
---|
| 2061 | {
|
---|
| 2062 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2063 |
|
---|
| 2064 | if (USE_ASCII)
|
---|
| 2065 | {
|
---|
| 2066 | ofstream boxesOut(filename.c_str());
|
---|
| 2067 | if (!boxesOut.is_open())
|
---|
| 2068 | return false;
|
---|
| 2069 |
|
---|
| 2070 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2071 | {
|
---|
| 2072 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2073 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2074 |
|
---|
| 2075 | boxesOut << mi->GetId() << " "
|
---|
| 2076 | << box.Min().x << " "
|
---|
| 2077 | << box.Min().y << " "
|
---|
| 2078 | << box.Min().z << " "
|
---|
| 2079 | << box.Max().x << " "
|
---|
| 2080 | << box.Max().y << " "
|
---|
| 2081 | << box.Max().z << endl;
|
---|
| 2082 | }
|
---|
| 2083 |
|
---|
| 2084 | boxesOut.close();
|
---|
| 2085 | }
|
---|
| 2086 | else
|
---|
| 2087 | {
|
---|
| 2088 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2089 |
|
---|
| 2090 | if (!boxesOut.is_open())
|
---|
| 2091 | return false;
|
---|
| 2092 |
|
---|
| 2093 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2094 | {
|
---|
| 2095 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2096 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2097 | Vector3 bmin = box.Min();
|
---|
| 2098 | Vector3 bmax = box.Max();
|
---|
[850] | 2099 | int id = mi->GetId();
|
---|
[840] | 2100 |
|
---|
[850] | 2101 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2102 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2103 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2104 | }
|
---|
| 2105 |
|
---|
| 2106 | boxesOut.close();
|
---|
| 2107 | }
|
---|
| 2108 |
|
---|
| 2109 | return true;
|
---|
| 2110 | }
|
---|
| 2111 |
|
---|
| 2112 |
|
---|
[850] | 2113 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2114 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2115 | {
|
---|
[850] | 2116 | Vector3 bmin, bmax;
|
---|
| 2117 | int id;
|
---|
[840] | 2118 |
|
---|
[850] | 2119 | if (USE_ASCII)
|
---|
[840] | 2120 | {
|
---|
[850] | 2121 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2122 |
|
---|
[850] | 2123 | if (!boxesIn.is_open())
|
---|
[840] | 2124 | {
|
---|
[850] | 2125 | cout << "failed to open file " << filename << endl;
|
---|
| 2126 | return false;
|
---|
[840] | 2127 | }
|
---|
[850] | 2128 |
|
---|
| 2129 | string buf;
|
---|
| 2130 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2131 | {
|
---|
[850] | 2132 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2133 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2134 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2135 |
|
---|
| 2136 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2137 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2138 | // HACK: set bounding box to new box
|
---|
| 2139 | //mi->mBox = box;
|
---|
| 2140 |
|
---|
| 2141 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2142 | }
|
---|
| 2143 |
|
---|
[850] | 2144 | boxesIn.close();
|
---|
[840] | 2145 | }
|
---|
[850] | 2146 | else
|
---|
[840] | 2147 | {
|
---|
[850] | 2148 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2149 |
|
---|
[850] | 2150 | if (!boxesIn.is_open())
|
---|
| 2151 | return false;
|
---|
| 2152 |
|
---|
| 2153 | while (1)
|
---|
[840] | 2154 | {
|
---|
[850] | 2155 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2156 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2157 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2158 |
|
---|
| 2159 | if (boxesIn.eof())
|
---|
| 2160 | break;
|
---|
| 2161 |
|
---|
| 2162 |
|
---|
| 2163 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2164 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2165 |
|
---|
| 2166 | // HACK: set bounding box to new box
|
---|
| 2167 | //mi->mBox = box;
|
---|
| 2168 | //boxes.push_back(mi);
|
---|
| 2169 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2170 | }
|
---|
| 2171 |
|
---|
[850] | 2172 | boxesIn.close();
|
---|
[840] | 2173 | }
|
---|
| 2174 |
|
---|
| 2175 | return true;
|
---|
[850] | 2176 | }
|
---|
[840] | 2177 |
|
---|
[931] | 2178 |
|
---|
| 2179 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2180 | {
|
---|
| 2181 | return mFilterWidth;
|
---|
| 2182 | }
|
---|
| 2183 |
|
---|
| 2184 |
|
---|
| 2185 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2186 | {
|
---|
| 2187 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2188 | }
|
---|
| 2189 |
|
---|
| 2190 |
|
---|
[1006] | 2191 | void ViewCellsManager::SetScalarPvsSize(ViewCell *vc,
|
---|
| 2192 | const int pvsSize) const
|
---|
[1002] | 2193 | {
|
---|
| 2194 | vc->mPvsSize = pvsSize;
|
---|
| 2195 | vc->mPvsSizeValid = true;
|
---|
| 2196 | }
|
---|
| 2197 |
|
---|
| 2198 |
|
---|
[1021] | 2199 |
|
---|
| 2200 |
|
---|
| 2201 | void
|
---|
| 2202 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2203 | KdTree *kdTree,
|
---|
| 2204 | const float viewSpaceFilterSize,
|
---|
| 2205 | const float spatialFilterSize,
|
---|
| 2206 | ObjectPvs &pvs
|
---|
| 2207 | )
|
---|
| 2208 | {
|
---|
| 2209 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2210 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2211 | // in the pvs
|
---|
| 2212 |
|
---|
| 2213 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2214 | // and compute the pvs union
|
---|
| 2215 |
|
---|
| 2216 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2217 | // Vector3 center = m->mBox.Center();
|
---|
| 2218 |
|
---|
| 2219 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2220 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 2221 | if (!ViewCellsConstructed())
|
---|
| 2222 | return;
|
---|
| 2223 |
|
---|
| 2224 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
| 2225 |
|
---|
| 2226 | bool usePrVS = false;
|
---|
| 2227 |
|
---|
| 2228 | if (!usePrVS) {
|
---|
| 2229 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2230 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 2231 |
|
---|
| 2232 | ViewCellContainer viewCells;
|
---|
| 2233 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2234 |
|
---|
| 2235 | // cout<<"box="<<box<<endl;
|
---|
| 2236 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2237 |
|
---|
| 2238 | int i;
|
---|
| 2239 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2240 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2241 | pvs.Merge((*it)->GetPvs());
|
---|
| 2242 | }
|
---|
| 2243 | } else {
|
---|
| 2244 | PrVs prvs;
|
---|
| 2245 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2246 |
|
---|
| 2247 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2248 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2249 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2250 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2251 | }
|
---|
| 2252 | } else
|
---|
| 2253 | pvs = viewCell->GetPvs();
|
---|
| 2254 |
|
---|
| 2255 | if (spatialFilterSize >=0.0f)
|
---|
| 2256 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2257 |
|
---|
| 2258 | }
|
---|
| 2259 |
|
---|
| 2260 |
|
---|
| 2261 |
|
---|
| 2262 | void
|
---|
| 2263 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2264 | const float relViewSpaceFilterSize,
|
---|
| 2265 | const float relSpatialFilterSize
|
---|
| 2266 | )
|
---|
| 2267 | {
|
---|
| 2268 |
|
---|
| 2269 | if (!ViewCellsConstructed())
|
---|
| 2270 | return;
|
---|
| 2271 |
|
---|
| 2272 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2273 |
|
---|
| 2274 | ObjectPvs *newPvs;
|
---|
| 2275 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 2276 |
|
---|
| 2277 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2278 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 2279 |
|
---|
| 2280 | int i;
|
---|
| 2281 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2282 | ApplyFilter(*it,
|
---|
| 2283 | kdTree,
|
---|
| 2284 | viewSpaceFilterSize,
|
---|
| 2285 | spatialFilterSize,
|
---|
| 2286 | newPvs[i]
|
---|
| 2287 | );
|
---|
| 2288 | }
|
---|
| 2289 |
|
---|
| 2290 | // now replace all pvss
|
---|
| 2291 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2292 |
|
---|
| 2293 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2294 | pvs.Clear();
|
---|
| 2295 | pvs = newPvs[i];
|
---|
| 2296 | newPvs[i].Clear();
|
---|
| 2297 | }
|
---|
| 2298 |
|
---|
| 2299 | delete [] newPvs;
|
---|
| 2300 | }
|
---|
| 2301 |
|
---|
| 2302 |
|
---|
| 2303 |
|
---|
| 2304 |
|
---|
| 2305 | void
|
---|
| 2306 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2307 | KdTree *kdTree,
|
---|
| 2308 | const float spatialFilterSize,
|
---|
| 2309 | ObjectPvs &pvs
|
---|
| 2310 | )
|
---|
| 2311 | {
|
---|
| 2312 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2313 | // extended boxes of visible objects
|
---|
| 2314 |
|
---|
| 2315 | Intersectable::NewMail();
|
---|
| 2316 |
|
---|
| 2317 | std::map<Intersectable *,
|
---|
| 2318 | PvsData<Intersectable *>,
|
---|
| 2319 | LtSample<Intersectable *> >::const_iterator oi;
|
---|
| 2320 |
|
---|
| 2321 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2322 | Intersectable *object = (*oi).first;
|
---|
| 2323 | object->Mail();
|
---|
| 2324 | }
|
---|
| 2325 |
|
---|
| 2326 | ObjectPvs nPvs;
|
---|
| 2327 | int nPvsSize=0;
|
---|
| 2328 | // now go through the pvs again
|
---|
| 2329 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2330 | Intersectable *object = (*oi).first;
|
---|
| 2331 |
|
---|
| 2332 | // Vector3 center = object->GetBox().Center();
|
---|
| 2333 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2334 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2335 |
|
---|
| 2336 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2337 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2338 |
|
---|
| 2339 | ObjectContainer objects;
|
---|
| 2340 |
|
---|
| 2341 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2342 | kdTree->CollectObjects(box,
|
---|
| 2343 | objects);
|
---|
| 2344 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2345 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2346 | for (; noi != objects.end(); ++noi) {
|
---|
| 2347 | Intersectable *o = *noi;
|
---|
| 2348 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2349 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2350 | nPvsSize++;
|
---|
| 2351 | }
|
---|
| 2352 | }
|
---|
| 2353 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2354 | pvs.Merge(nPvs);
|
---|
| 2355 | }
|
---|
| 2356 |
|
---|
| 2357 |
|
---|
| 2358 | void ViewCellsManager::ExportColor(Exporter *exporter, ViewCell *vc) const
|
---|
| 2359 | {
|
---|
| 2360 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2361 |
|
---|
| 2362 | float importance = 0;
|
---|
| 2363 | static Material m;
|
---|
| 2364 |
|
---|
| 2365 | switch (mColorCode)
|
---|
| 2366 | {
|
---|
| 2367 | case 0: // Random
|
---|
| 2368 | {
|
---|
| 2369 | if (vcValid)
|
---|
| 2370 | {
|
---|
| 2371 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2372 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2373 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2374 | }
|
---|
| 2375 | else
|
---|
| 2376 | {
|
---|
| 2377 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2378 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2379 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2380 | }
|
---|
| 2381 |
|
---|
| 2382 | exporter->SetForcedMaterial(m);
|
---|
| 2383 | return;
|
---|
| 2384 | }
|
---|
| 2385 |
|
---|
| 2386 | case 1: // pvs
|
---|
| 2387 | {
|
---|
| 2388 | if (mCurrentViewCellsStats.maxPvs)
|
---|
| 2389 | importance = (float)mViewCellsTree->GetPvsSize(vc) / (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2390 | }
|
---|
| 2391 | break;
|
---|
| 2392 | case 2: // merges
|
---|
| 2393 | {
|
---|
| 2394 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2395 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2396 | }
|
---|
| 2397 | break;
|
---|
| 2398 | #if 0
|
---|
| 2399 | case 3: // merge tree differene
|
---|
| 2400 | {
|
---|
| 2401 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2402 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2403 |
|
---|
| 2404 | }
|
---|
| 2405 | break;
|
---|
| 2406 | #endif
|
---|
| 2407 | default:
|
---|
| 2408 | break;
|
---|
| 2409 | }
|
---|
| 2410 |
|
---|
| 2411 | // special color code for invalid view cells
|
---|
| 2412 | m.mDiffuseColor.r = importance;
|
---|
| 2413 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2414 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2415 |
|
---|
| 2416 | //Debug << "importance: " << importance << endl;
|
---|
| 2417 | exporter->SetForcedMaterial(m);
|
---|
| 2418 | }
|
---|
| 2419 |
|
---|
| 2420 |
|
---|
[1022] | 2421 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2422 | vector<MergeCandidate> &candidates)
|
---|
| 2423 | {
|
---|
| 2424 | // implemented in subclasses
|
---|
| 2425 | }
|
---|
| 2426 |
|
---|
[1047] | 2427 |
|
---|
| 2428 |
|
---|
[440] | 2429 | /**********************************************************************/
|
---|
[931] | 2430 | /* BspViewCellsManager implementation */
|
---|
[440] | 2431 | /**********************************************************************/
|
---|
| 2432 |
|
---|
[482] | 2433 |
|
---|
[1004] | 2434 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 2435 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 2436 | {
|
---|
[1004] | 2437 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2438 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 2439 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 2440 | }
|
---|
| 2441 |
|
---|
[462] | 2442 |
|
---|
[440] | 2443 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2444 | {
|
---|
| 2445 | return mBspTree->GetRoot() != NULL;
|
---|
| 2446 | }
|
---|
| 2447 |
|
---|
[480] | 2448 |
|
---|
[440] | 2449 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2450 | {
|
---|
| 2451 | return new BspViewCell(mesh);
|
---|
| 2452 | }
|
---|
| 2453 |
|
---|
[480] | 2454 |
|
---|
[574] | 2455 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2456 | const VssRayContainer &rays)
|
---|
[440] | 2457 | {
|
---|
[441] | 2458 | // if view cells were already constructed
|
---|
[440] | 2459 | if (ViewCellsConstructed())
|
---|
| 2460 | return 0;
|
---|
| 2461 |
|
---|
| 2462 | int sampleContributions = 0;
|
---|
[503] | 2463 |
|
---|
[469] | 2464 | // construct view cells using the collected samples
|
---|
| 2465 | RayContainer constructionRays;
|
---|
| 2466 | VssRayContainer savedRays;
|
---|
[440] | 2467 |
|
---|
[574] | 2468 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 2469 |
|
---|
[469] | 2470 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2471 |
|
---|
[473] | 2472 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 2473 |
|
---|
[469] | 2474 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2475 | {
|
---|
[473] | 2476 | if (Random(1.0f) < prop)
|
---|
[469] | 2477 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2478 | else
|
---|
| 2479 | savedRays.push_back(*it);
|
---|
| 2480 | }
|
---|
[440] | 2481 |
|
---|
[503] | 2482 | if (mViewCells.empty())
|
---|
| 2483 | {
|
---|
| 2484 | // no view cells loaded
|
---|
[587] | 2485 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2486 | // collect final view cells
|
---|
| 2487 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2488 | }
|
---|
[469] | 2489 | else
|
---|
| 2490 | {
|
---|
| 2491 | mBspTree->Construct(mViewCells);
|
---|
| 2492 | }
|
---|
| 2493 |
|
---|
| 2494 | // destroy rays created only for construction
|
---|
| 2495 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2496 |
|
---|
[440] | 2497 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 2498 |
|
---|
| 2499 | //EvaluateViewCellsStats();
|
---|
[660] | 2500 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2501 |
|
---|
[469] | 2502 | // recast rest of the rays
|
---|
[649] | 2503 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2504 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2505 |
|
---|
[719] | 2506 | // real meshes are contructed at this stage
|
---|
| 2507 | if (0)
|
---|
| 2508 | {
|
---|
| 2509 | cout << "finalizing view cells ... ";
|
---|
| 2510 | FinalizeViewCells(true);
|
---|
| 2511 | cout << "finished" << endl;
|
---|
| 2512 | }
|
---|
| 2513 |
|
---|
[440] | 2514 | return sampleContributions;
|
---|
| 2515 | }
|
---|
| 2516 |
|
---|
[503] | 2517 |
|
---|
[480] | 2518 | void BspViewCellsManager::CollectViewCells()
|
---|
| 2519 | {
|
---|
[587] | 2520 | // view cells tree constructed
|
---|
| 2521 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 2522 | {
|
---|
[587] | 2523 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2524 | }
|
---|
| 2525 | else
|
---|
| 2526 | {
|
---|
| 2527 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 2528 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 2529 | mNumActiveViewCells);
|
---|
[587] | 2530 | }
|
---|
[480] | 2531 | }
|
---|
[468] | 2532 |
|
---|
[503] | 2533 |
|
---|
[471] | 2534 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2535 | {
|
---|
[471] | 2536 | // compute view cell area as subsititute for probability
|
---|
[591] | 2537 | if (1)
|
---|
| 2538 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2539 | else
|
---|
| 2540 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2541 | }
|
---|
[440] | 2542 |
|
---|
[503] | 2543 |
|
---|
[440] | 2544 |
|
---|
[468] | 2545 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2546 | const Vector3 &termination,
|
---|
| 2547 | ViewCellContainer &viewcells)
|
---|
[440] | 2548 | {
|
---|
[468] | 2549 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2550 | }
|
---|
| 2551 |
|
---|
| 2552 |
|
---|
[503] | 2553 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2554 | const VssRayContainer &rays)
|
---|
| 2555 | {
|
---|
[469] | 2556 | if (!ViewCellsConstructed())
|
---|
[441] | 2557 | {
|
---|
| 2558 | Debug << "view cells not constructed" << endl;
|
---|
| 2559 | return 0;
|
---|
| 2560 | }
|
---|
[590] | 2561 |
|
---|
| 2562 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 2563 | if (mViewCellsFinished)
|
---|
| 2564 | {
|
---|
| 2565 | FinalizeViewCells(true);
|
---|
| 2566 | EvaluateViewCellsStats();
|
---|
| 2567 |
|
---|
| 2568 | return 0;
|
---|
| 2569 | }
|
---|
| 2570 |
|
---|
[440] | 2571 | //-- post processing of bsp view cells
|
---|
[600] | 2572 |
|
---|
[440] | 2573 | int vcSize = 0;
|
---|
| 2574 | int pvsSize = 0;
|
---|
| 2575 |
|
---|
[591] | 2576 | //-- merge view cells
|
---|
[649] | 2577 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2578 | long startTime = GetTime();
|
---|
| 2579 |
|
---|
| 2580 | VssRayContainer postProcessRays;
|
---|
| 2581 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2582 |
|
---|
[592] | 2583 | if (mMergeViewCells)
|
---|
[591] | 2584 | {
|
---|
[660] | 2585 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2586 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2587 | }
|
---|
| 2588 | else
|
---|
| 2589 | {
|
---|
[660] | 2590 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2591 |
|
---|
[649] | 2592 | // create spatial merge hierarchy
|
---|
[752] | 2593 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2594 | mViewCellsTree->SetRoot(root);
|
---|
| 2595 |
|
---|
| 2596 | // compute pvs
|
---|
| 2597 | ObjectPvs pvs;
|
---|
| 2598 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2599 | }
|
---|
[440] | 2600 |
|
---|
[660] | 2601 | // export statistics after merge
|
---|
[666] | 2602 | if (1)
|
---|
| 2603 | {
|
---|
| 2604 | char mstats[100];
|
---|
[1004] | 2605 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2606 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2607 | }
|
---|
[650] | 2608 |
|
---|
[649] | 2609 | //-- stats and visualizations
|
---|
| 2610 | cout << "finished" << endl;
|
---|
[650] | 2611 | cout << "merged view cells in "
|
---|
[752] | 2612 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[440] | 2613 |
|
---|
[650] | 2614 | Debug << "Postprocessing: Merged view cells in "
|
---|
[752] | 2615 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
[649] | 2616 |
|
---|
[503] | 2617 |
|
---|
[660] | 2618 | //-- visualization and statistics
|
---|
[600] | 2619 | // reset view cells and stats
|
---|
[480] | 2620 | ResetViewCells();
|
---|
[660] | 2621 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2622 |
|
---|
[660] | 2623 |
|
---|
[600] | 2624 | int savedColorCode = mColorCode;
|
---|
[605] | 2625 |
|
---|
[600] | 2626 | //BspLeaf::NewMail();
|
---|
| 2627 | if (1) // export merged view cells
|
---|
| 2628 | {
|
---|
| 2629 | mColorCode = 0;
|
---|
[605] | 2630 |
|
---|
[744] | 2631 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2632 |
|
---|
[600] | 2633 |
|
---|
| 2634 | cout << "exporting view cells after merge ... ";
|
---|
| 2635 |
|
---|
| 2636 | if (exporter)
|
---|
| 2637 | {
|
---|
| 2638 | if (mExportGeometry)
|
---|
| 2639 | exporter->ExportGeometry(objects);
|
---|
| 2640 |
|
---|
| 2641 | //exporter->SetWireframe();
|
---|
| 2642 | exporter->SetFilled();
|
---|
| 2643 | ExportViewCellsForViz(exporter);
|
---|
| 2644 |
|
---|
| 2645 |
|
---|
| 2646 | delete exporter;
|
---|
| 2647 | }
|
---|
| 2648 | cout << "finished" << endl;
|
---|
| 2649 | }
|
---|
| 2650 |
|
---|
[752] | 2651 | if (1) // export merged view cells using pvs color coding
|
---|
[600] | 2652 | {
|
---|
| 2653 | mColorCode = 1;
|
---|
| 2654 |
|
---|
[744] | 2655 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2656 |
|
---|
| 2657 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2658 |
|
---|
| 2659 | if (exporter)
|
---|
| 2660 | {
|
---|
| 2661 | //exporter->SetWireframe();
|
---|
[752] | 2662 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
| 2663 |
|
---|
[600] | 2664 | if (mExportGeometry)
|
---|
| 2665 | exporter->ExportGeometry(objects);
|
---|
| 2666 |
|
---|
| 2667 | //exporter->SetWireframe();
|
---|
| 2668 | exporter->SetFilled();
|
---|
| 2669 | ExportViewCellsForViz(exporter);
|
---|
| 2670 |
|
---|
| 2671 | delete exporter;
|
---|
| 2672 | }
|
---|
| 2673 | cout << "finished" << endl;
|
---|
| 2674 | }
|
---|
| 2675 |
|
---|
[693] | 2676 |
|
---|
| 2677 | // only for testing
|
---|
| 2678 | TestSubdivision();
|
---|
| 2679 |
|
---|
[600] | 2680 | mColorCode = savedColorCode;
|
---|
| 2681 |
|
---|
[719] | 2682 | // compute final meshes and volume / area
|
---|
| 2683 | if (1) FinalizeViewCells(true);
|
---|
| 2684 |
|
---|
[587] | 2685 | // write view cells to disc
|
---|
| 2686 | if (mExportViewCells)
|
---|
| 2687 | {
|
---|
[840] | 2688 | char filename[100];
|
---|
[1004] | 2689 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2690 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2691 | }
|
---|
[840] | 2692 |
|
---|
| 2693 | // export bounding boxes
|
---|
[931] | 2694 | if (0 && mExportBboxesForPvs)
|
---|
[840] | 2695 | {
|
---|
| 2696 | char filename[100];
|
---|
[1004] | 2697 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[840] | 2698 | ExportBoundingBoxes(filename, objects);
|
---|
| 2699 | }
|
---|
[587] | 2700 |
|
---|
[840] | 2701 |
|
---|
[650] | 2702 | return 0;
|
---|
[440] | 2703 | }
|
---|
| 2704 |
|
---|
[477] | 2705 |
|
---|
| 2706 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2707 | {
|
---|
| 2708 | }
|
---|
| 2709 |
|
---|
| 2710 |
|
---|
[440] | 2711 | int BspViewCellsManager::GetType() const
|
---|
| 2712 | {
|
---|
| 2713 | return BSP;
|
---|
| 2714 | }
|
---|
| 2715 |
|
---|
| 2716 |
|
---|
| 2717 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2718 | const VssRayContainer &sampleRays)
|
---|
[440] | 2719 | {
|
---|
[469] | 2720 | if (!ViewCellsConstructed())
|
---|
| 2721 | return;
|
---|
[574] | 2722 |
|
---|
[600] | 2723 | int savedColorCode = mColorCode;
|
---|
| 2724 |
|
---|
| 2725 |
|
---|
| 2726 | if (1) // export final view cells
|
---|
[440] | 2727 | {
|
---|
[1020] | 2728 | mColorCode = 1; // hack color code
|
---|
[822] | 2729 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 2730 |
|
---|
| 2731 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2732 |
|
---|
[469] | 2733 | if (exporter)
|
---|
[440] | 2734 | {
|
---|
[600] | 2735 | //exporter->SetWireframe();
|
---|
| 2736 |
|
---|
| 2737 | if (mExportGeometry)
|
---|
| 2738 | exporter->ExportGeometry(objects);
|
---|
[590] | 2739 |
|
---|
[801] | 2740 | //exporter->SetFilled();
|
---|
[1020] | 2741 | const bool b = mUseClipPlaneForViz;
|
---|
[801] | 2742 | mUseClipPlaneForViz = false;
|
---|
[1020] | 2743 |
|
---|
[508] | 2744 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 2745 |
|
---|
[801] | 2746 | mUseClipPlaneForViz = b;
|
---|
[469] | 2747 | delete exporter;
|
---|
[440] | 2748 | }
|
---|
[469] | 2749 | cout << "finished" << endl;
|
---|
[503] | 2750 | }
|
---|
[477] | 2751 |
|
---|
[600] | 2752 | mColorCode = savedColorCode;
|
---|
| 2753 |
|
---|
[469] | 2754 | //-- visualization of the BSP splits
|
---|
| 2755 | bool exportSplits = false;
|
---|
[1004] | 2756 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2757 |
|
---|
[469] | 2758 | if (exportSplits)
|
---|
[440] | 2759 | {
|
---|
[469] | 2760 | cout << "exporting splits ... ";
|
---|
[477] | 2761 | ExportSplits(objects);
|
---|
[469] | 2762 | cout << "finished" << endl;
|
---|
[440] | 2763 | }
|
---|
[477] | 2764 |
|
---|
[600] | 2765 | // export single view cells
|
---|
[477] | 2766 | ExportBspPvs(objects);
|
---|
[440] | 2767 | }
|
---|
| 2768 |
|
---|
| 2769 |
|
---|
[477] | 2770 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2771 | {
|
---|
| 2772 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2773 |
|
---|
[503] | 2774 | if (exporter)
|
---|
| 2775 | {
|
---|
[598] | 2776 | //exporter->SetFilled();
|
---|
| 2777 |
|
---|
| 2778 | if (mExportGeometry)
|
---|
| 2779 | exporter->ExportGeometry(objects);
|
---|
| 2780 |
|
---|
[503] | 2781 | Material m;
|
---|
[440] | 2782 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2783 | exporter->SetForcedMaterial(m);
|
---|
| 2784 | exporter->SetWireframe();
|
---|
[503] | 2785 |
|
---|
[440] | 2786 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2787 |
|
---|
[482] | 2788 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2789 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2790 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2791 | //exporter->ResetForcedMaterial();
|
---|
| 2792 |
|
---|
[440] | 2793 | delete exporter;
|
---|
| 2794 | }
|
---|
| 2795 | }
|
---|
| 2796 |
|
---|
[477] | 2797 |
|
---|
| 2798 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2799 | {
|
---|
[477] | 2800 | const int leafOut = 10;
|
---|
[503] | 2801 |
|
---|
[477] | 2802 | ViewCell::NewMail();
|
---|
[440] | 2803 |
|
---|
[477] | 2804 | //-- some rays for output
|
---|
| 2805 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2806 |
|
---|
[477] | 2807 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2808 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2809 |
|
---|
[997] | 2810 | // sort view cells in order to find the largest view cells
|
---|
[587] | 2811 | if (0)
|
---|
[801] | 2812 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[587] | 2813 |
|
---|
[503] | 2814 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2815 |
|
---|
[478] | 2816 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2817 | {
|
---|
[478] | 2818 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2819 | VssRayContainer vcRays;
|
---|
| 2820 | Intersectable::NewMail();
|
---|
[582] | 2821 | ViewCell *vc;
|
---|
| 2822 |
|
---|
| 2823 | if (0)
|
---|
| 2824 | vc = mViewCells[i];
|
---|
| 2825 | else
|
---|
| 2826 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2827 |
|
---|
[478] | 2828 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2829 |
|
---|
[587] | 2830 | if(0)
|
---|
[477] | 2831 | {
|
---|
[587] | 2832 | // check whether we can add the current ray to the output rays
|
---|
| 2833 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2834 | {
|
---|
[587] | 2835 | BspRay *ray = mBspRays[k];
|
---|
| 2836 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2837 | {
|
---|
| 2838 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2839 | if (vc == leaf->GetViewCell())
|
---|
| 2840 | vcRays.push_back(ray->vssRay);
|
---|
| 2841 | }
|
---|
[477] | 2842 | }
|
---|
| 2843 | }
|
---|
[587] | 2844 |
|
---|
[478] | 2845 | //bspLeaves[j]->Mail();
|
---|
| 2846 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2847 |
|
---|
[478] | 2848 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2849 |
|
---|
[478] | 2850 | exporter->SetWireframe();
|
---|
[477] | 2851 |
|
---|
[478] | 2852 | Material m;//= RandomMaterial();
|
---|
| 2853 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2854 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2855 |
|
---|
[587] | 2856 | ExportViewCellGeometry(exporter, vc);
|
---|
| 2857 |
|
---|
[478] | 2858 | // export rays piercing this view cell
|
---|
| 2859 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2860 |
|
---|
[478] | 2861 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2862 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2863 |
|
---|
[478] | 2864 | ObjectPvsMap::const_iterator it,
|
---|
| 2865 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2866 |
|
---|
[478] | 2867 | exporter->SetFilled();
|
---|
[469] | 2868 |
|
---|
[478] | 2869 | // output PVS of view cell
|
---|
[503] | 2870 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2871 | {
|
---|
| 2872 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2873 |
|
---|
[478] | 2874 | if (!intersect->Mailed())
|
---|
| 2875 | {
|
---|
| 2876 | Material m = RandomMaterial();
|
---|
| 2877 | exporter->SetForcedMaterial(m);
|
---|
| 2878 |
|
---|
| 2879 | exporter->ExportIntersectable(intersect);
|
---|
| 2880 | intersect->Mail();
|
---|
[503] | 2881 | }
|
---|
[477] | 2882 | }
|
---|
[503] | 2883 |
|
---|
[478] | 2884 | DEL_PTR(exporter);
|
---|
| 2885 | cout << "finished" << endl;
|
---|
[477] | 2886 | }
|
---|
| 2887 |
|
---|
| 2888 | Debug << endl;
|
---|
[440] | 2889 | }
|
---|
| 2890 |
|
---|
[441] | 2891 |
|
---|
[693] | 2892 | void BspViewCellsManager::TestSubdivision()
|
---|
| 2893 | {
|
---|
| 2894 | ViewCellContainer leaves;
|
---|
| 2895 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 2896 |
|
---|
| 2897 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2898 |
|
---|
| 2899 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 2900 | float subdivVol = 0;
|
---|
| 2901 | float newVol = 0;
|
---|
| 2902 |
|
---|
| 2903 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2904 | {
|
---|
| 2905 | BspNodeGeometry geom;
|
---|
| 2906 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2907 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2908 |
|
---|
| 2909 | const float lVol = geom.GetVolume();
|
---|
| 2910 |
|
---|
| 2911 | newVol += lVol;
|
---|
| 2912 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 2913 |
|
---|
[704] | 2914 | float thres = 0.9f;
|
---|
[694] | 2915 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 2916 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 2917 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 2918 | }
|
---|
| 2919 |
|
---|
| 2920 | Debug << "exact volume: " << vol << endl;
|
---|
| 2921 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 2922 | Debug << "new volume: " << newVol << endl;
|
---|
| 2923 | }
|
---|
| 2924 |
|
---|
| 2925 |
|
---|
[580] | 2926 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2927 | ViewCell *vc,
|
---|
[1047] | 2928 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 2929 | {
|
---|
[1027] | 2930 | // export mesh if available
|
---|
[482] | 2931 | if (vc->GetMesh())
|
---|
| 2932 | {
|
---|
[587] | 2933 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 2934 | return;
|
---|
[482] | 2935 | }
|
---|
[1027] | 2936 | // otherwise construct from leaves
|
---|
[660] | 2937 | if (clipPlane)
|
---|
[591] | 2938 | {
|
---|
[1047] | 2939 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 2940 |
|
---|
[726] | 2941 | ViewCellContainer leaves;
|
---|
| 2942 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2943 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 2944 |
|
---|
[726] | 2945 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 2946 | {
|
---|
[726] | 2947 | BspNodeGeometry geom;
|
---|
| 2948 |
|
---|
[681] | 2949 | BspNodeGeometry front;
|
---|
| 2950 | BspNodeGeometry back;
|
---|
[591] | 2951 |
|
---|
[726] | 2952 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2953 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 2954 |
|
---|
[726] | 2955 | const float eps = 0.00000001f;
|
---|
[1047] | 2956 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 2957 |
|
---|
| 2958 | if (cf == -1)
|
---|
| 2959 | {
|
---|
| 2960 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 2961 | }
|
---|
| 2962 | else if (cf == 0)
|
---|
| 2963 | {
|
---|
| 2964 | geom.SplitGeometry(front,
|
---|
| 2965 | back,
|
---|
[1047] | 2966 | plane,
|
---|
[726] | 2967 | mViewSpaceBox,
|
---|
| 2968 | eps);
|
---|
| 2969 |
|
---|
| 2970 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 2971 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 2972 | if (back.Valid())
|
---|
| 2973 | {
|
---|
| 2974 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 2975 | }
|
---|
| 2976 | }
|
---|
[681] | 2977 | }
|
---|
[591] | 2978 | }
|
---|
| 2979 | else
|
---|
| 2980 | {
|
---|
[726] | 2981 | BspNodeGeometry geom;
|
---|
| 2982 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2983 |
|
---|
[678] | 2984 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 2985 | }
|
---|
[482] | 2986 | }
|
---|
| 2987 |
|
---|
[503] | 2988 |
|
---|
| 2989 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2990 | {
|
---|
[726] | 2991 | // delete previous mesh
|
---|
| 2992 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 2993 | BspNodeGeometry geom;
|
---|
| 2994 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2995 |
|
---|
[1001] | 2996 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 2997 |
|
---|
[840] | 2998 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 2999 | vc->SetMesh(mesh);
|
---|
[503] | 3000 | }
|
---|
| 3001 |
|
---|
[551] | 3002 |
|
---|
[587] | 3003 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3004 | const bool createMesh)
|
---|
[502] | 3005 | {
|
---|
[587] | 3006 | float area = 0;
|
---|
| 3007 | float volume = 0;
|
---|
[572] | 3008 |
|
---|
[587] | 3009 | ViewCellContainer leaves;
|
---|
| 3010 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3011 |
|
---|
| 3012 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3013 |
|
---|
[693] | 3014 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3015 | {
|
---|
| 3016 | BspNodeGeometry geom;
|
---|
| 3017 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3018 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3019 |
|
---|
[719] | 3020 | const float lVol = geom.GetVolume();
|
---|
| 3021 | const float lArea = geom.GetArea();
|
---|
[693] | 3022 |
|
---|
| 3023 | //(*it)->SetVolume(vol);
|
---|
| 3024 | //(*it)->SetArea(area);
|
---|
| 3025 |
|
---|
| 3026 | area += lArea;
|
---|
| 3027 | volume += lVol;
|
---|
| 3028 |
|
---|
| 3029 | CreateMesh(*it);
|
---|
[587] | 3030 | }
|
---|
| 3031 |
|
---|
| 3032 | viewCell->SetVolume(volume);
|
---|
| 3033 | viewCell->SetArea(area);
|
---|
[502] | 3034 | }
|
---|
| 3035 |
|
---|
[580] | 3036 |
|
---|
[879] | 3037 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3038 | {
|
---|
[1021] | 3039 | if (!ViewCellsConstructed())
|
---|
[587] | 3040 | return NULL;
|
---|
| 3041 |
|
---|
| 3042 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 3043 | return NULL;
|
---|
| 3044 |
|
---|
| 3045 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3046 | }
|
---|
| 3047 |
|
---|
| 3048 |
|
---|
[587] | 3049 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3050 | vector<MergeCandidate> &candidates)
|
---|
| 3051 | {
|
---|
| 3052 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3053 |
|
---|
| 3054 | if (mUseRaysForMerge)
|
---|
| 3055 | {
|
---|
| 3056 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3057 | }
|
---|
| 3058 | else
|
---|
| 3059 | {
|
---|
| 3060 | vector<BspLeaf *> leaves;
|
---|
| 3061 | mBspTree->CollectLeaves(leaves);
|
---|
| 3062 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3063 | }
|
---|
| 3064 |
|
---|
| 3065 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3066 | }
|
---|
| 3067 |
|
---|
| 3068 |
|
---|
[440] | 3069 |
|
---|
[1047] | 3070 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3071 | const bool exportPvs,
|
---|
| 3072 | const ObjectContainer &objects)
|
---|
[590] | 3073 | {
|
---|
[955] | 3074 | #if STILL_HAS_TODO
|
---|
[590] | 3075 | cout << "exporting view cells to xml ... ";
|
---|
| 3076 | std::ofstream stream;
|
---|
[503] | 3077 |
|
---|
[590] | 3078 | // for output we need unique ids for each view cell
|
---|
| 3079 | CreateUniqueViewCellIds();
|
---|
[503] | 3080 |
|
---|
[590] | 3081 |
|
---|
| 3082 | stream.open(filename.c_str());
|
---|
| 3083 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3084 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3085 |
|
---|
| 3086 | //-- the view space bounding box
|
---|
| 3087 | stream << "<ViewSpaceBox"
|
---|
| 3088 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3089 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 3090 |
|
---|
| 3091 | //-- the type of the view cells hierarchy
|
---|
[975] | 3092 |
|
---|
[840] | 3093 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
[975] | 3094 | stream << "<Hierarchy name=\"vspBspTree\" >" << endl;
|
---|
[840] | 3095 |
|
---|
[590] | 3096 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 3097 | stream << "<ViewCells>" << endl;
|
---|
[610] | 3098 |
|
---|
[871] | 3099 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[590] | 3100 |
|
---|
| 3101 | stream << "</ViewCells>" << endl;
|
---|
| 3102 |
|
---|
| 3103 | //-- load the hierarchy
|
---|
| 3104 | stream << "<Hierarchy>" << endl;
|
---|
| 3105 | mBspTree->Export(stream);
|
---|
| 3106 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 3107 |
|
---|
[975] | 3108 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3109 | stream.close();
|
---|
| 3110 |
|
---|
| 3111 | cout << "finished" << endl;
|
---|
[955] | 3112 | #endif
|
---|
[590] | 3113 | return true;
|
---|
| 3114 | }
|
---|
| 3115 |
|
---|
| 3116 |
|
---|
[650] | 3117 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3118 | {
|
---|
[752] | 3119 | // terminate recursion
|
---|
[650] | 3120 | if (root->IsLeaf())
|
---|
| 3121 | {
|
---|
[752] | 3122 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3123 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3124 | return leaf->GetViewCell();
|
---|
[650] | 3125 | }
|
---|
| 3126 |
|
---|
| 3127 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3128 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3129 |
|
---|
[752] | 3130 | // evaluate merge cost for priority traversal
|
---|
[650] | 3131 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3132 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3133 |
|
---|
[650] | 3134 | float volume = 0;
|
---|
[649] | 3135 |
|
---|
[650] | 3136 | BspNode *front = interior->GetFront();
|
---|
| 3137 | BspNode *back = interior->GetBack();
|
---|
[649] | 3138 |
|
---|
[752] | 3139 |
|
---|
| 3140 | //-- recursivly compute child hierarchies
|
---|
[650] | 3141 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3142 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3143 |
|
---|
[752] | 3144 |
|
---|
| 3145 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3146 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3147 |
|
---|
[650] | 3148 | volume += backVc->GetVolume();
|
---|
| 3149 | volume += frontVc->GetVolume();
|
---|
[649] | 3150 |
|
---|
[650] | 3151 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3152 |
|
---|
[650] | 3153 | return viewCellInterior;
|
---|
[610] | 3154 | }
|
---|
| 3155 |
|
---|
[650] | 3156 |
|
---|
[752] | 3157 | void BspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 3158 | {
|
---|
| 3159 | // terminate traversal
|
---|
| 3160 | if (root->IsLeaf())
|
---|
| 3161 | {
|
---|
| 3162 | pvs = root->GetPvs();
|
---|
[1002] | 3163 | SetScalarPvsSize(root, pvs.GetSize());
|
---|
| 3164 |
|
---|
[752] | 3165 | return;
|
---|
| 3166 | }
|
---|
| 3167 |
|
---|
| 3168 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 3169 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 3170 |
|
---|
| 3171 | vector<ObjectPvs> pvsList;
|
---|
| 3172 |
|
---|
| 3173 |
|
---|
| 3174 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 3175 | {
|
---|
| 3176 | ObjectPvs objPvs;
|
---|
| 3177 |
|
---|
| 3178 | //-- recursivly compute child pvss
|
---|
| 3179 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 3180 |
|
---|
| 3181 | // store pvs in vector
|
---|
| 3182 | pvsList.push_back(objPvs);
|
---|
| 3183 | }
|
---|
| 3184 |
|
---|
| 3185 | #if 1
|
---|
| 3186 | Intersectable::NewMail();
|
---|
| 3187 |
|
---|
| 3188 | //-- faster way of computing pvs:
|
---|
| 3189 | // construct merged pvs by adding
|
---|
| 3190 | // and only those of the next pvs which were not mailed.
|
---|
| 3191 | // note: sumpdf is not correct!!
|
---|
| 3192 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 3193 |
|
---|
| 3194 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 3195 | {
|
---|
| 3196 |
|
---|
| 3197 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 3198 |
|
---|
| 3199 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 3200 | {
|
---|
| 3201 |
|
---|
| 3202 | Intersectable *intersect = (*pit).first;
|
---|
| 3203 |
|
---|
| 3204 | if (!intersect->Mailed())
|
---|
| 3205 | {
|
---|
| 3206 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 3207 | intersect->Mail();
|
---|
| 3208 | }
|
---|
| 3209 | }
|
---|
| 3210 | }
|
---|
| 3211 |
|
---|
| 3212 | // store pvs in this node
|
---|
| 3213 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 3214 | {
|
---|
[1002] | 3215 | interior->SetPvs(pvs);
|
---|
[752] | 3216 | }
|
---|
| 3217 |
|
---|
| 3218 | // set new pvs size
|
---|
[1002] | 3219 | SetScalarPvsSize(interior, pvs.GetSize());
|
---|
[752] | 3220 |
|
---|
| 3221 | #else
|
---|
[1021] | 3222 | // really merge cells: slow nut sumpdf is correct
|
---|
[752] | 3223 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3224 |
|
---|
| 3225 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 3226 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 3227 | #endif
|
---|
| 3228 |
|
---|
| 3229 | }
|
---|
| 3230 |
|
---|
[590] | 3231 | /************************************************************************/
|
---|
| 3232 | /* KdViewCellsManager implementation */
|
---|
| 3233 | /************************************************************************/
|
---|
| 3234 |
|
---|
| 3235 |
|
---|
| 3236 |
|
---|
[1004] | 3237 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
| 3238 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3239 | {
|
---|
| 3240 | }
|
---|
| 3241 |
|
---|
[605] | 3242 |
|
---|
[471] | 3243 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3244 | {
|
---|
[479] | 3245 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3246 | if (0)
|
---|
| 3247 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3248 | else
|
---|
| 3249 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3250 | }
|
---|
| 3251 |
|
---|
| 3252 |
|
---|
| 3253 |
|
---|
[479] | 3254 |
|
---|
[480] | 3255 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3256 | {
|
---|
| 3257 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3258 | }
|
---|
[479] | 3259 |
|
---|
[519] | 3260 |
|
---|
[574] | 3261 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3262 | const VssRayContainer &rays)
|
---|
[440] | 3263 | {
|
---|
[441] | 3264 | // if view cells already constructed
|
---|
[440] | 3265 | if (ViewCellsConstructed())
|
---|
| 3266 | return 0;
|
---|
[441] | 3267 |
|
---|
[440] | 3268 | mKdTree->Construct();
|
---|
| 3269 |
|
---|
[480] | 3270 | mTotalAreaValid = false;
|
---|
[469] | 3271 | // create the view cells
|
---|
| 3272 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 3273 |
|
---|
[480] | 3274 | // cast rays
|
---|
[574] | 3275 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3276 |
|
---|
[479] | 3277 | EvaluateViewCellsStats();
|
---|
[660] | 3278 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3279 |
|
---|
[440] | 3280 | return 0;
|
---|
| 3281 | }
|
---|
| 3282 |
|
---|
[587] | 3283 |
|
---|
[440] | 3284 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3285 | {
|
---|
| 3286 | return mKdTree->GetRoot() != NULL;
|
---|
| 3287 | }
|
---|
| 3288 |
|
---|
[1020] | 3289 |
|
---|
[503] | 3290 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3291 | const VssRayContainer &rays)
|
---|
[440] | 3292 | {
|
---|
| 3293 | return 0;
|
---|
| 3294 | }
|
---|
| 3295 |
|
---|
[1020] | 3296 |
|
---|
[440] | 3297 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3298 | const VssRayContainer &sampleRays)
|
---|
[440] | 3299 | {
|
---|
[441] | 3300 | if (!ViewCellsConstructed())
|
---|
| 3301 | return;
|
---|
| 3302 |
|
---|
[469] | 3303 | // using view cells instead of the kd PVS of objects
|
---|
| 3304 | const bool useViewCells = true;
|
---|
| 3305 | bool exportRays = false;
|
---|
[440] | 3306 |
|
---|
| 3307 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3308 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3309 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3310 |
|
---|
[469] | 3311 | if (useViewCells)
|
---|
[440] | 3312 | {
|
---|
[469] | 3313 | const int leafOut = 10;
|
---|
[503] | 3314 |
|
---|
[469] | 3315 | ViewCell::NewMail();
|
---|
[503] | 3316 |
|
---|
[469] | 3317 | //-- some rays for output
|
---|
| 3318 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3319 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3320 |
|
---|
| 3321 | //-- some random view cells and rays for output
|
---|
| 3322 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3323 |
|
---|
[469] | 3324 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3325 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3326 |
|
---|
[469] | 3327 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3328 | {
|
---|
[469] | 3329 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3330 | RayContainer vcRays;
|
---|
[503] | 3331 |
|
---|
[469] | 3332 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3333 | #if 0
|
---|
[469] | 3334 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3335 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3336 | {
|
---|
[469] | 3337 | Ray *ray = sampleRays[k];
|
---|
[503] | 3338 |
|
---|
[469] | 3339 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3340 | {
|
---|
| 3341 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3342 |
|
---|
| 3343 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3344 | {
|
---|
| 3345 | vcRays.push_back(ray);
|
---|
| 3346 | }
|
---|
| 3347 | }
|
---|
[479] | 3348 | }
|
---|
[503] | 3349 | #endif
|
---|
[469] | 3350 | Intersectable::NewMail();
|
---|
[503] | 3351 |
|
---|
[469] | 3352 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 3353 |
|
---|
[469] | 3354 | //bspLeaves[j]->Mail();
|
---|
| 3355 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 3356 |
|
---|
[469] | 3357 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3358 | exporter->SetFilled();
|
---|
| 3359 |
|
---|
| 3360 | exporter->SetWireframe();
|
---|
| 3361 | //exporter->SetFilled();
|
---|
[503] | 3362 |
|
---|
[469] | 3363 | Material m;//= RandomMaterial();
|
---|
| 3364 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3365 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3366 |
|
---|
[469] | 3367 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3368 | exporter->ExportBox(box);
|
---|
| 3369 |
|
---|
| 3370 | // export rays piercing this view cell
|
---|
[503] | 3371 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3372 |
|
---|
[469] | 3373 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3374 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3375 |
|
---|
[469] | 3376 | // exporter->SetWireframe();
|
---|
| 3377 | exporter->SetFilled();
|
---|
[503] | 3378 |
|
---|
[469] | 3379 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3380 | // -- output PVS of view cell
|
---|
[503] | 3381 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3382 | {
|
---|
| 3383 | Intersectable *intersect = (*it).first;
|
---|
| 3384 | if (!intersect->Mailed())
|
---|
| 3385 | {
|
---|
| 3386 | exporter->ExportIntersectable(intersect);
|
---|
| 3387 | intersect->Mail();
|
---|
[503] | 3388 | }
|
---|
[440] | 3389 | }
|
---|
[503] | 3390 |
|
---|
[469] | 3391 | DEL_PTR(exporter);
|
---|
| 3392 | cout << "finished" << endl;
|
---|
[440] | 3393 | }
|
---|
[469] | 3394 |
|
---|
| 3395 | DEL_PTR(rays);
|
---|
[440] | 3396 | }
|
---|
[469] | 3397 | else // using kd PVS of objects
|
---|
| 3398 | {
|
---|
| 3399 | for (int i = 0; i < limit; ++ i)
|
---|
| 3400 | {
|
---|
| 3401 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3402 |
|
---|
[469] | 3403 | // check whether we can add this to the rays
|
---|
[503] | 3404 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3405 | {
|
---|
| 3406 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3407 | {
|
---|
| 3408 | rays[j].push_back(ray);
|
---|
| 3409 | }
|
---|
| 3410 | }
|
---|
| 3411 | }
|
---|
[440] | 3412 |
|
---|
[503] | 3413 | if (exportRays)
|
---|
[469] | 3414 | {
|
---|
| 3415 | Exporter *exporter = NULL;
|
---|
| 3416 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3417 | exporter->SetWireframe();
|
---|
| 3418 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3419 |
|
---|
[728] | 3420 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3421 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3422 |
|
---|
| 3423 | exporter->SetFilled();
|
---|
[503] | 3424 |
|
---|
[469] | 3425 | delete exporter;
|
---|
| 3426 | }
|
---|
[440] | 3427 |
|
---|
[503] | 3428 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3429 | {
|
---|
| 3430 | Intersectable *object = objects[k];
|
---|
[503] | 3431 | char s[64];
|
---|
[469] | 3432 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 3433 |
|
---|
[469] | 3434 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3435 | exporter->SetWireframe();
|
---|
[503] | 3436 |
|
---|
[469] | 3437 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 3438 | Intersectable::NewMail();
|
---|
[503] | 3439 |
|
---|
[469] | 3440 | // avoid adding the object to the list
|
---|
| 3441 | object->Mail();
|
---|
| 3442 | ObjectContainer visibleObjects;
|
---|
[503] | 3443 |
|
---|
| 3444 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3445 | {
|
---|
| 3446 | KdNode *node = (*i).first;
|
---|
| 3447 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3448 |
|
---|
[469] | 3449 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3450 | }
|
---|
[503] | 3451 |
|
---|
[469] | 3452 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3453 | exporter->SetFilled();
|
---|
[503] | 3454 |
|
---|
[469] | 3455 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3456 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3457 |
|
---|
[469] | 3458 | Material m;
|
---|
| 3459 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3460 | exporter->SetForcedMaterial(m);
|
---|
| 3461 | exporter->ExportIntersectable(object);
|
---|
[503] | 3462 |
|
---|
[469] | 3463 | delete exporter;
|
---|
[440] | 3464 | }
|
---|
[503] | 3465 | }
|
---|
[440] | 3466 | }
|
---|
| 3467 |
|
---|
[469] | 3468 |
|
---|
[580] | 3469 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3470 | {
|
---|
| 3471 | return new KdViewCell(mesh);
|
---|
| 3472 | }
|
---|
[482] | 3473 |
|
---|
[580] | 3474 |
|
---|
| 3475 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3476 | ViewCell *vc,
|
---|
[1047] | 3477 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 3478 | {
|
---|
[580] | 3479 | ViewCellContainer leaves;
|
---|
[485] | 3480 |
|
---|
[580] | 3481 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3482 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3483 |
|
---|
| 3484 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3485 | {
|
---|
| 3486 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 3487 |
|
---|
| 3488 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 3489 | }
|
---|
[482] | 3490 | }
|
---|
| 3491 |
|
---|
| 3492 |
|
---|
[440] | 3493 | int KdViewCellsManager::GetType() const
|
---|
| 3494 | {
|
---|
| 3495 | return ViewCellsManager::KD;
|
---|
| 3496 | }
|
---|
| 3497 |
|
---|
| 3498 |
|
---|
[441] | 3499 |
|
---|
[440] | 3500 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3501 | {
|
---|
| 3502 | KdNode *node = leaf;
|
---|
| 3503 |
|
---|
| 3504 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3505 | node = node->mParent;
|
---|
| 3506 | return node;
|
---|
| 3507 | }
|
---|
| 3508 |
|
---|
[469] | 3509 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3510 | const Vector3 &termination,
|
---|
| 3511 | ViewCellContainer &viewcells)
|
---|
[466] | 3512 | {
|
---|
[469] | 3513 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3514 | }
|
---|
| 3515 |
|
---|
[469] | 3516 |
|
---|
[503] | 3517 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3518 | {
|
---|
[551] | 3519 | // TODO
|
---|
[503] | 3520 | }
|
---|
| 3521 |
|
---|
[580] | 3522 |
|
---|
| 3523 |
|
---|
| 3524 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3525 | vector<MergeCandidate> &candidates)
|
---|
| 3526 | {
|
---|
| 3527 | // TODO
|
---|
| 3528 | }
|
---|
| 3529 |
|
---|
[1021] | 3530 |
|
---|
| 3531 |
|
---|
| 3532 |
|
---|
[503] | 3533 | /**************************************************************************/
|
---|
| 3534 | /* VspBspViewCellsManager implementation */
|
---|
| 3535 | /**************************************************************************/
|
---|
[482] | 3536 |
|
---|
[503] | 3537 |
|
---|
[1004] | 3538 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 3539 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 3540 | {
|
---|
[1004] | 3541 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3542 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3543 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3544 | }
|
---|
| 3545 |
|
---|
[477] | 3546 |
|
---|
[475] | 3547 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3548 | {
|
---|
| 3549 | }
|
---|
| 3550 |
|
---|
[477] | 3551 |
|
---|
[471] | 3552 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3553 | {
|
---|
[551] | 3554 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3555 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3556 | else
|
---|
| 3557 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3558 | }
|
---|
| 3559 |
|
---|
[477] | 3560 |
|
---|
[480] | 3561 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3562 | {
|
---|
[581] | 3563 | // view cells tree constructed
|
---|
| 3564 | if (!ViewCellsTreeConstructed())
|
---|
| 3565 | {
|
---|
[590] | 3566 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3567 | }
|
---|
| 3568 | else
|
---|
[664] | 3569 | { // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3570 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3571 | }
|
---|
[480] | 3572 | }
|
---|
| 3573 |
|
---|
| 3574 |
|
---|
[1021] | 3575 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3576 | vector<MergeCandidate> &candidates)
|
---|
| 3577 | {
|
---|
| 3578 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3579 |
|
---|
| 3580 | if (mUseRaysForMerge)
|
---|
| 3581 | {
|
---|
| 3582 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3583 | }
|
---|
| 3584 | else
|
---|
| 3585 | {
|
---|
| 3586 | vector<BspLeaf *> leaves;
|
---|
| 3587 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3588 |
|
---|
| 3589 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3590 | }
|
---|
| 3591 |
|
---|
| 3592 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3593 | }
|
---|
| 3594 |
|
---|
| 3595 |
|
---|
[442] | 3596 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3597 | {
|
---|
| 3598 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3599 | }
|
---|
| 3600 |
|
---|
[462] | 3601 |
|
---|
[442] | 3602 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3603 | {
|
---|
| 3604 | return new BspViewCell(mesh);
|
---|
| 3605 | }
|
---|
| 3606 |
|
---|
[569] | 3607 |
|
---|
[574] | 3608 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3609 | const VssRayContainer &rays)
|
---|
[442] | 3610 | {
|
---|
[710] | 3611 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3612 |
|
---|
[503] | 3613 | // if view cells were already constructed
|
---|
| 3614 | if (ViewCellsConstructed())
|
---|
| 3615 | return 0;
|
---|
[442] | 3616 |
|
---|
[503] | 3617 | int sampleContributions = 0;
|
---|
| 3618 |
|
---|
| 3619 | VssRayContainer sampleRays;
|
---|
| 3620 |
|
---|
[574] | 3621 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3622 |
|
---|
[469] | 3623 | VssRayContainer constructionRays;
|
---|
| 3624 | VssRayContainer savedRays;
|
---|
[442] | 3625 |
|
---|
[660] | 3626 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3627 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3628 |
|
---|
[574] | 3629 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3630 |
|
---|
[574] | 3631 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3632 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3633 |
|
---|
[1002] | 3634 | long startTime;
|
---|
[564] | 3635 |
|
---|
[667] | 3636 | if (1)
|
---|
| 3637 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[666] | 3638 | else
|
---|
[667] | 3639 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
| 3640 |
|
---|
[490] | 3641 | // collapse invalid regions
|
---|
[491] | 3642 | cout << "collapsing invalid tree regions ... ";
|
---|
[1002] | 3643 | startTime = GetTime();
|
---|
| 3644 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3645 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3646 | << " seconds" << endl;
|
---|
| 3647 |
|
---|
[495] | 3648 | cout << "finished" << endl;
|
---|
[503] | 3649 |
|
---|
[1002] | 3650 | //-- stats
|
---|
[660] | 3651 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3652 |
|
---|
[480] | 3653 | ResetViewCells();
|
---|
[660] | 3654 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3655 |
|
---|
[491] | 3656 |
|
---|
[495] | 3657 | startTime = GetTime();
|
---|
[503] | 3658 |
|
---|
[491] | 3659 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3660 |
|
---|
[469] | 3661 | // recast rest of rays
|
---|
[605] | 3662 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3663 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3664 |
|
---|
[491] | 3665 | cout << "finished" << endl;
|
---|
| 3666 |
|
---|
[503] | 3667 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3668 | << " secs" << endl;
|
---|
[442] | 3669 |
|
---|
[485] | 3670 | cout << "construction finished" << endl;
|
---|
[503] | 3671 |
|
---|
[719] | 3672 | // real meshes are contructed at this stage
|
---|
| 3673 | if (0)
|
---|
| 3674 | {
|
---|
| 3675 | cout << "finalizing view cells ... ";
|
---|
| 3676 | FinalizeViewCells(true);
|
---|
| 3677 | cout << "finished" << endl;
|
---|
| 3678 | }
|
---|
| 3679 |
|
---|
[442] | 3680 | return sampleContributions;
|
---|
| 3681 | }
|
---|
| 3682 |
|
---|
[489] | 3683 |
|
---|
[503] | 3684 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3685 | const ObjectContainer &objects)
|
---|
[475] | 3686 | {
|
---|
[442] | 3687 | int vcSize = 0;
|
---|
| 3688 | int pvsSize = 0;
|
---|
| 3689 |
|
---|
[650] | 3690 | //-- merge view cells
|
---|
| 3691 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3692 | long startTime = GetTime();
|
---|
| 3693 |
|
---|
| 3694 |
|
---|
[597] | 3695 | if (mMergeViewCells)
|
---|
| 3696 | {
|
---|
| 3697 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3698 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3699 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3700 | }
|
---|
| 3701 | else
|
---|
| 3702 | {
|
---|
[710] | 3703 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3704 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3705 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3706 |
|
---|
| 3707 | // compute pvs
|
---|
| 3708 | ObjectPvs pvs;
|
---|
| 3709 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3710 | }
|
---|
[442] | 3711 |
|
---|
[666] | 3712 | if (1)
|
---|
| 3713 | {
|
---|
| 3714 | char mstats[100];
|
---|
[752] | 3715 | ObjectPvs pvs;
|
---|
| 3716 |
|
---|
[1004] | 3717 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3718 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3719 | }
|
---|
[485] | 3720 |
|
---|
[650] | 3721 | //-- stats and visualizations
|
---|
| 3722 | cout << "finished merging" << endl;
|
---|
| 3723 | cout << "merged view cells in "
|
---|
| 3724 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3725 |
|
---|
[650] | 3726 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3727 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3728 |
|
---|
| 3729 |
|
---|
[600] | 3730 | int savedColorCode = mColorCode;
|
---|
| 3731 |
|
---|
[660] | 3732 | // get currently active view cell set
|
---|
| 3733 | ResetViewCells();
|
---|
| 3734 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3735 |
|
---|
[485] | 3736 | //BspLeaf::NewMail();
|
---|
[667] | 3737 | if (1) // export merged view cells
|
---|
[483] | 3738 | {
|
---|
[600] | 3739 | mColorCode = 0;
|
---|
[744] | 3740 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3741 |
|
---|
[485] | 3742 | cout << "exporting view cells after merge ... ";
|
---|
| 3743 |
|
---|
| 3744 | if (exporter)
|
---|
[483] | 3745 | {
|
---|
[600] | 3746 | if (0)
|
---|
| 3747 | exporter->SetWireframe();
|
---|
| 3748 | else
|
---|
| 3749 | exporter->SetFilled();
|
---|
| 3750 |
|
---|
| 3751 | ExportViewCellsForViz(exporter);
|
---|
| 3752 |
|
---|
[485] | 3753 | if (mExportGeometry)
|
---|
[483] | 3754 | {
|
---|
[485] | 3755 | Material m;
|
---|
| 3756 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3757 | exporter->SetForcedMaterial(m);
|
---|
| 3758 | exporter->SetFilled();
|
---|
[442] | 3759 |
|
---|
[485] | 3760 | exporter->ExportGeometry(objects);
|
---|
[442] | 3761 | }
|
---|
[485] | 3762 |
|
---|
[600] | 3763 | delete exporter;
|
---|
| 3764 | }
|
---|
| 3765 | cout << "finished" << endl;
|
---|
| 3766 | }
|
---|
| 3767 |
|
---|
[667] | 3768 | if (1) // export merged view cells using pvs coding
|
---|
[600] | 3769 | {
|
---|
| 3770 | mColorCode = 1;
|
---|
| 3771 |
|
---|
[744] | 3772 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 3773 |
|
---|
| 3774 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3775 |
|
---|
| 3776 | if (exporter)
|
---|
| 3777 | {
|
---|
[598] | 3778 | if (0)
|
---|
| 3779 | exporter->SetWireframe();
|
---|
| 3780 | else
|
---|
| 3781 | exporter->SetFilled();
|
---|
| 3782 |
|
---|
| 3783 | ExportViewCellsForViz(exporter);
|
---|
| 3784 |
|
---|
[600] | 3785 | if (mExportGeometry)
|
---|
| 3786 | {
|
---|
| 3787 | Material m;
|
---|
| 3788 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3789 | exporter->SetForcedMaterial(m);
|
---|
| 3790 | exporter->SetFilled();
|
---|
| 3791 |
|
---|
| 3792 | exporter->ExportGeometry(objects);
|
---|
| 3793 | }
|
---|
| 3794 |
|
---|
[485] | 3795 | delete exporter;
|
---|
[442] | 3796 | }
|
---|
[485] | 3797 | cout << "finished" << endl;
|
---|
[442] | 3798 | }
|
---|
[600] | 3799 |
|
---|
| 3800 | mColorCode = savedColorCode;
|
---|
| 3801 |
|
---|
[503] | 3802 | }
|
---|
[475] | 3803 |
|
---|
[503] | 3804 |
|
---|
[609] | 3805 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3806 | {
|
---|
[609] | 3807 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3808 | }
|
---|
| 3809 |
|
---|
| 3810 |
|
---|
[609] | 3811 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3812 | {
|
---|
| 3813 | if (!viewCell->IsLeaf())
|
---|
| 3814 | {
|
---|
| 3815 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3816 |
|
---|
[609] | 3817 | return bspVc->mLeaf;
|
---|
| 3818 | }
|
---|
[607] | 3819 | else
|
---|
| 3820 | {
|
---|
| 3821 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3822 |
|
---|
| 3823 | // cannot be node of binary tree
|
---|
| 3824 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3825 | return NULL;
|
---|
[607] | 3826 |
|
---|
| 3827 | ViewCell *left = interior->mChildren[0];
|
---|
| 3828 | ViewCell *right = interior->mChildren[1];
|
---|
| 3829 |
|
---|
[609] | 3830 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3831 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3832 |
|
---|
[609] | 3833 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3834 | {
|
---|
[609] | 3835 | return leftNode->GetParent();
|
---|
[607] | 3836 | }
|
---|
[609] | 3837 | }
|
---|
[607] | 3838 |
|
---|
[609] | 3839 | return NULL;
|
---|
[607] | 3840 | }
|
---|
| 3841 |
|
---|
| 3842 |
|
---|
[564] | 3843 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3844 | const ObjectContainer &objects)
|
---|
[503] | 3845 | {
|
---|
[485] | 3846 | Debug << "render time before refine:" << endl;
|
---|
| 3847 | mRenderer->RenderScene();
|
---|
[503] | 3848 | SimulationStatistics ss;
|
---|
[485] | 3849 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3850 | Debug << ss << endl;
|
---|
| 3851 |
|
---|
[489] | 3852 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3853 | long startTime = GetTime();
|
---|
[485] | 3854 |
|
---|
| 3855 | // refining the merged view cells
|
---|
[580] | 3856 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3857 |
|
---|
[442] | 3858 | //-- stats and visualizations
|
---|
| 3859 | cout << "finished" << endl;
|
---|
[485] | 3860 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3861 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3862 |
|
---|
[485] | 3863 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3864 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3865 | }
|
---|
[495] | 3866 |
|
---|
[517] | 3867 |
|
---|
[503] | 3868 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3869 | const VssRayContainer &rays)
|
---|
[840] | 3870 | {
|
---|
[503] | 3871 | if (!ViewCellsConstructed())
|
---|
| 3872 | {
|
---|
[517] | 3873 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3874 | return 0;
|
---|
| 3875 | }
|
---|
[520] | 3876 |
|
---|
[564] | 3877 |
|
---|
[609] | 3878 | // view cells already finished before post processing step
|
---|
| 3879 | // (i.e. because they were loaded)
|
---|
[520] | 3880 | if (mViewCellsFinished)
|
---|
[542] | 3881 | {
|
---|
[551] | 3882 | FinalizeViewCells(true);
|
---|
[542] | 3883 | EvaluateViewCellsStats();
|
---|
[577] | 3884 |
|
---|
[517] | 3885 | return 0;
|
---|
[542] | 3886 | }
|
---|
[448] | 3887 |
|
---|
[710] | 3888 | // check if new view cells turned invalid
|
---|
| 3889 | int minPvs, maxPvs;
|
---|
[564] | 3890 |
|
---|
[710] | 3891 | if (0)
|
---|
| 3892 | {
|
---|
| 3893 | minPvs = mMinPvsSize;
|
---|
| 3894 | maxPvs = mMaxPvsSize;
|
---|
| 3895 | }
|
---|
| 3896 | else
|
---|
| 3897 | {
|
---|
| 3898 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3899 | maxPvs = mMaxPvsSize;
|
---|
| 3900 | }
|
---|
[720] | 3901 |
|
---|
[710] | 3902 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3903 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3904 |
|
---|
| 3905 | SetValidity(minPvs, maxPvs);
|
---|
| 3906 |
|
---|
[574] | 3907 | // update valid view space according to valid view cells
|
---|
[720] | 3908 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3909 |
|
---|
[720] | 3910 | // area has to be recomputed
|
---|
[574] | 3911 | mTotalAreaValid = false;
|
---|
[517] | 3912 | VssRayContainer postProcessRays;
|
---|
[605] | 3913 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3914 |
|
---|
[517] | 3915 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3916 |
|
---|
[517] | 3917 |
|
---|
[552] | 3918 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3919 | // and to correct the rendering statistics
|
---|
[719] | 3920 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3921 |
|
---|
[597] | 3922 | //-- merge the individual view cells
|
---|
| 3923 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3924 |
|
---|
[720] | 3925 |
|
---|
| 3926 | // only for debugging purpose: test if the subdivision is valid
|
---|
[693] | 3927 | TestSubdivision();
|
---|
| 3928 |
|
---|
[597] | 3929 | //-- refines the merged view cells
|
---|
[720] | 3930 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3931 |
|
---|
[719] | 3932 |
|
---|
[660] | 3933 | //-- render simulation after merge + refine
|
---|
[605] | 3934 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3935 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3936 | SimulationStatistics ss;
|
---|
| 3937 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3938 |
|
---|
[580] | 3939 |
|
---|
[605] | 3940 | cout << " finished" << endl;
|
---|
| 3941 | cout << ss << endl;
|
---|
| 3942 | Debug << ss << endl;
|
---|
[600] | 3943 |
|
---|
| 3944 |
|
---|
| 3945 | //-- compression
|
---|
| 3946 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3947 | {
|
---|
| 3948 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3949 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3950 |
|
---|
[752] | 3951 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3952 |
|
---|
| 3953 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3954 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3955 | }
|
---|
| 3956 |
|
---|
[660] | 3957 |
|
---|
[517] | 3958 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 3959 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 3960 |
|
---|
[574] | 3961 | // recompute view cell list and statistics
|
---|
[520] | 3962 | ResetViewCells();
|
---|
| 3963 |
|
---|
[719] | 3964 | // compute final meshes and volume / area
|
---|
| 3965 | if (1) FinalizeViewCells(true);
|
---|
[517] | 3966 |
|
---|
[508] | 3967 | // write view cells to disc
|
---|
| 3968 | if (mExportViewCells)
|
---|
| 3969 | {
|
---|
[840] | 3970 | char filename[100];
|
---|
[1004] | 3971 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 3972 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 3973 | }
|
---|
[517] | 3974 |
|
---|
[840] | 3975 |
|
---|
| 3976 | // export bounding boxes
|
---|
| 3977 | if (mExportBboxesForPvs)
|
---|
| 3978 | {
|
---|
| 3979 | char filename[100];
|
---|
[1004] | 3980 | Environment::GetSingleton()->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[850] | 3981 |
|
---|
[840] | 3982 | ExportBoundingBoxes(filename, objects);
|
---|
[508] | 3983 | }
|
---|
[503] | 3984 |
|
---|
| 3985 | return 0;
|
---|
[442] | 3986 | }
|
---|
| 3987 |
|
---|
[490] | 3988 |
|
---|
[442] | 3989 | int VspBspViewCellsManager::GetType() const
|
---|
| 3990 | {
|
---|
| 3991 | return VSP_BSP;
|
---|
| 3992 | }
|
---|
| 3993 |
|
---|
| 3994 |
|
---|
[650] | 3995 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 3996 | {
|
---|
[752] | 3997 | // terminate recursion
|
---|
[650] | 3998 | if (root->IsLeaf())
|
---|
| 3999 | {
|
---|
[752] | 4000 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4001 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4002 | return leaf->GetViewCell();
|
---|
[650] | 4003 | }
|
---|
| 4004 |
|
---|
[752] | 4005 |
|
---|
[650] | 4006 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4007 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4008 |
|
---|
[752] | 4009 | // evaluate merge cost for priority traversal
|
---|
[650] | 4010 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4011 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4012 |
|
---|
[650] | 4013 | float volume = 0;
|
---|
| 4014 |
|
---|
| 4015 | BspNode *front = interior->GetFront();
|
---|
| 4016 | BspNode *back = interior->GetBack();
|
---|
[649] | 4017 |
|
---|
[752] | 4018 |
|
---|
| 4019 | ObjectPvs frontPvs, backPvs;
|
---|
| 4020 |
|
---|
| 4021 | //-- recursivly compute child hierarchies
|
---|
[650] | 4022 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4023 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4024 |
|
---|
[752] | 4025 |
|
---|
| 4026 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4027 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4028 |
|
---|
| 4029 | volume += backVc->GetVolume();
|
---|
| 4030 | volume += frontVc->GetVolume();
|
---|
| 4031 |
|
---|
| 4032 | viewCellInterior->SetVolume(volume);
|
---|
| 4033 |
|
---|
| 4034 | return viewCellInterior;
|
---|
[609] | 4035 | }
|
---|
| 4036 |
|
---|
| 4037 |
|
---|
[752] | 4038 |
|
---|
| 4039 | void VspBspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 4040 | {
|
---|
| 4041 | // terminate traversal
|
---|
| 4042 | if (root->IsLeaf())
|
---|
| 4043 | {
|
---|
| 4044 | pvs = root->GetPvs();
|
---|
[1002] | 4045 | SetScalarPvsSize(root, root->GetPvs().GetSize());
|
---|
| 4046 |
|
---|
[752] | 4047 | return;
|
---|
| 4048 | }
|
---|
| 4049 |
|
---|
[801] | 4050 | //-- interior node => propagate pvs up
|
---|
[752] | 4051 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[801] | 4052 | interior->GetPvs().Clear();
|
---|
| 4053 | pvs.Clear();
|
---|
| 4054 | vector<ObjectPvs> pvsList;
|
---|
| 4055 |
|
---|
[752] | 4056 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 4057 |
|
---|
| 4058 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 4059 | {
|
---|
| 4060 | ObjectPvs objPvs;
|
---|
| 4061 |
|
---|
| 4062 | //-- recursivly compute child pvss
|
---|
| 4063 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 4064 |
|
---|
| 4065 | // store pvs in vector
|
---|
| 4066 | pvsList.push_back(objPvs);
|
---|
| 4067 | }
|
---|
| 4068 |
|
---|
| 4069 | #if 1
|
---|
[801] | 4070 |
|
---|
[752] | 4071 | Intersectable::NewMail();
|
---|
| 4072 |
|
---|
| 4073 | //-- faster way of computing pvs:
|
---|
| 4074 | // construct merged pvs by adding
|
---|
| 4075 | // and only those of the next pvs which were not mailed.
|
---|
| 4076 | // note: sumpdf is not correct!!
|
---|
| 4077 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 4078 |
|
---|
| 4079 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 4080 | {
|
---|
| 4081 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 4082 |
|
---|
| 4083 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 4084 | {
|
---|
| 4085 | Intersectable *intersect = (*pit).first;
|
---|
| 4086 |
|
---|
| 4087 | if (!intersect->Mailed())
|
---|
| 4088 | {
|
---|
| 4089 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 4090 | intersect->Mail();
|
---|
| 4091 | }
|
---|
| 4092 | }
|
---|
| 4093 | }
|
---|
| 4094 |
|
---|
| 4095 | // store pvs in this node
|
---|
| 4096 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 4097 | {
|
---|
[1002] | 4098 | interior->SetPvs(pvs);
|
---|
[752] | 4099 | }
|
---|
| 4100 |
|
---|
| 4101 | // set new pvs size
|
---|
[1002] | 4102 | SetScalarPvsSize(interior, pvs.GetSize());
|
---|
| 4103 |
|
---|
[752] | 4104 |
|
---|
| 4105 | #else
|
---|
[801] | 4106 |
|
---|
[1021] | 4107 | // really merge cells: slow but sumpdf is correct
|
---|
[752] | 4108 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 4109 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 4110 | #endif
|
---|
| 4111 |
|
---|
| 4112 | }
|
---|
| 4113 |
|
---|
| 4114 |
|
---|
[490] | 4115 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4116 | {
|
---|
| 4117 | if (!ViewCellsConstructed())
|
---|
| 4118 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4119 |
|
---|
| 4120 | // TODO: set reasonable limit
|
---|
| 4121 | const int limit = 20;
|
---|
| 4122 |
|
---|
| 4123 | for (int i = 0; i < limit; ++ i)
|
---|
| 4124 | {
|
---|
[542] | 4125 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4126 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4127 | {
|
---|
| 4128 | return true;
|
---|
| 4129 | }
|
---|
| 4130 | }
|
---|
[997] | 4131 |
|
---|
[490] | 4132 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4133 | return false;
|
---|
| 4134 | }
|
---|
| 4135 |
|
---|
| 4136 |
|
---|
| 4137 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4138 | {
|
---|
[569] | 4139 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4140 | // validy update in preprocessor for all managers)
|
---|
| 4141 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4142 |
|
---|
[569] | 4143 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4144 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4145 | }
|
---|
| 4146 |
|
---|
| 4147 |
|
---|
[442] | 4148 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4149 | const VssRayContainer &sampleRays)
|
---|
[442] | 4150 | {
|
---|
| 4151 | if (!ViewCellsConstructed())
|
---|
| 4152 | return;
|
---|
| 4153 |
|
---|
[485] | 4154 | VssRayContainer visRays;
|
---|
| 4155 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 4156 |
|
---|
[1002] | 4157 | //-- export view cells
|
---|
| 4158 | if (1)
|
---|
[1047] | 4159 | {
|
---|
| 4160 | // hack pvs
|
---|
[1052] | 4161 | //const int savedColorCode = mColorCode;
|
---|
| 4162 | //mColorCode = 1;
|
---|
[801] | 4163 |
|
---|
[1020] | 4164 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4165 |
|
---|
[442] | 4166 | if (exporter)
|
---|
| 4167 | {
|
---|
[580] | 4168 | cout << "exporting view cells after post process ... ";
|
---|
| 4169 |
|
---|
[600] | 4170 | if (0)
|
---|
[542] | 4171 | {
|
---|
[1004] | 4172 | // export view space box
|
---|
[542] | 4173 | exporter->SetWireframe();
|
---|
| 4174 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4175 | exporter->SetFilled();
|
---|
| 4176 | }
|
---|
| 4177 |
|
---|
[1052] | 4178 | Material m;
|
---|
| 4179 |
|
---|
| 4180 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4181 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4182 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4183 |
|
---|
| 4184 | exporter->SetForcedMaterial(m);
|
---|
| 4185 |
|
---|
| 4186 | if (0 && mExportGeometry)
|
---|
[542] | 4187 | {
|
---|
[485] | 4188 | exporter->ExportGeometry(objects);
|
---|
[542] | 4189 | }
|
---|
[489] | 4190 |
|
---|
| 4191 | // export rays
|
---|
[1047] | 4192 | if (0 && mExportRays)
|
---|
[489] | 4193 | {
|
---|
[1052] | 4194 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4195 | }
|
---|
[564] | 4196 |
|
---|
[801] | 4197 | //exporter->SetFilled();
|
---|
[1020] | 4198 |
|
---|
[1006] | 4199 | // HACK: export without clip plane
|
---|
| 4200 | const bool b = mUseClipPlaneForViz;
|
---|
[1052] | 4201 | //mUseClipPlaneForViz = false;
|
---|
[1020] | 4202 |
|
---|
[508] | 4203 | ExportViewCellsForViz(exporter);
|
---|
[1020] | 4204 |
|
---|
[801] | 4205 | mUseClipPlaneForViz = b;
|
---|
[442] | 4206 | delete exporter;
|
---|
[1020] | 4207 |
|
---|
[580] | 4208 | cout << "finished" << endl;
|
---|
[442] | 4209 | }
|
---|
[600] | 4210 |
|
---|
[1052] | 4211 | //mColorCode = savedColorCode;
|
---|
[557] | 4212 | }
|
---|
[503] | 4213 |
|
---|
[1002] | 4214 |
|
---|
[600] | 4215 | if (0)
|
---|
[577] | 4216 | {
|
---|
| 4217 | cout << "exporting depth map ... ";
|
---|
| 4218 |
|
---|
| 4219 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4220 | if (exporter)
|
---|
| 4221 | {
|
---|
| 4222 | if (1)
|
---|
| 4223 | {
|
---|
| 4224 | exporter->SetWireframe();
|
---|
| 4225 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4226 | exporter->SetFilled();
|
---|
| 4227 | }
|
---|
| 4228 |
|
---|
| 4229 | if (mExportGeometry)
|
---|
| 4230 | {
|
---|
| 4231 | exporter->ExportGeometry(objects);
|
---|
| 4232 | }
|
---|
| 4233 |
|
---|
| 4234 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
| 4235 |
|
---|
| 4236 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4237 |
|
---|
| 4238 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4239 | {
|
---|
[582] | 4240 | ViewCell *vc = *vit;
|
---|
[577] | 4241 |
|
---|
[580] | 4242 | ViewCellContainer leaves;
|
---|
| 4243 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4244 |
|
---|
[580] | 4245 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4246 |
|
---|
| 4247 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4248 | {
|
---|
[580] | 4249 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4250 |
|
---|
| 4251 | Material m;
|
---|
| 4252 |
|
---|
| 4253 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4254 | m.mDiffuseColor.r = relDepth;
|
---|
| 4255 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4256 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4257 |
|
---|
| 4258 | exporter->SetForcedMaterial(m);
|
---|
| 4259 |
|
---|
| 4260 |
|
---|
| 4261 | BspNodeGeometry geom;
|
---|
| 4262 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4263 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4264 | }
|
---|
| 4265 | }
|
---|
| 4266 |
|
---|
| 4267 | delete exporter;
|
---|
| 4268 | }
|
---|
| 4269 |
|
---|
| 4270 |
|
---|
| 4271 | cout << "finished" << endl;
|
---|
| 4272 | }
|
---|
| 4273 |
|
---|
[442] | 4274 | //-- visualization of the BSP splits
|
---|
| 4275 | bool exportSplits = false;
|
---|
[1004] | 4276 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4277 |
|
---|
[442] | 4278 | if (exportSplits)
|
---|
| 4279 | {
|
---|
| 4280 | cout << "exporting splits ... ";
|
---|
[485] | 4281 | ExportSplits(objects, visRays);
|
---|
[442] | 4282 | cout << "finished" << endl;
|
---|
| 4283 | }
|
---|
| 4284 |
|
---|
[542] | 4285 | //-- export single view cells
|
---|
[485] | 4286 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4287 | }
|
---|
| 4288 |
|
---|
[503] | 4289 |
|
---|
[485] | 4290 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4291 | const VssRayContainer &rays)
|
---|
[442] | 4292 | {
|
---|
| 4293 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4294 |
|
---|
[503] | 4295 | if (exporter)
|
---|
| 4296 | {
|
---|
| 4297 | Material m;
|
---|
[442] | 4298 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4299 | exporter->SetForcedMaterial(m);
|
---|
| 4300 | exporter->SetWireframe();
|
---|
[503] | 4301 |
|
---|
[448] | 4302 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4303 |
|
---|
| 4304 | // take forced material, else big scenes cannot be viewed
|
---|
| 4305 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4306 | exporter->SetForcedMaterial(m);
|
---|
| 4307 | exporter->SetFilled();
|
---|
| 4308 |
|
---|
| 4309 | exporter->ResetForcedMaterial();
|
---|
[503] | 4310 |
|
---|
[442] | 4311 | // export rays
|
---|
[485] | 4312 | if (mExportRays)
|
---|
| 4313 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4314 |
|
---|
[485] | 4315 | if (mExportGeometry)
|
---|
[442] | 4316 | exporter->ExportGeometry(objects);
|
---|
| 4317 |
|
---|
| 4318 | delete exporter;
|
---|
| 4319 | }
|
---|
| 4320 | }
|
---|
| 4321 |
|
---|
[503] | 4322 |
|
---|
[485] | 4323 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4324 | const VssRayContainer &rays)
|
---|
[442] | 4325 | {
|
---|
[1020] | 4326 | int leafOut;
|
---|
| 4327 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[503] | 4328 |
|
---|
[442] | 4329 | ViewCell::NewMail();
|
---|
[503] | 4330 |
|
---|
[639] | 4331 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4332 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4333 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4334 |
|
---|
[694] | 4335 | const bool sortViewCells = true;
|
---|
[1021] | 4336 |
|
---|
[485] | 4337 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4338 | if (sortViewCells)
|
---|
[801] | 4339 | {
|
---|
| 4340 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 4341 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4342 | }
|
---|
| 4343 |
|
---|
[503] | 4344 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4345 |
|
---|
[639] | 4346 | int raysOut = 0;
|
---|
[587] | 4347 |
|
---|
[485] | 4348 | //-- some rays for output
|
---|
[478] | 4349 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4350 | {
|
---|
[478] | 4351 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4352 |
|
---|
[582] | 4353 | ViewCell *vc;
|
---|
[574] | 4354 |
|
---|
[694] | 4355 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4356 | vc = mViewCells[i];
|
---|
[574] | 4357 | else
|
---|
[639] | 4358 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4359 |
|
---|
[801] | 4360 | ObjectPvs pvs;
|
---|
| 4361 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4362 |
|
---|
[639] | 4363 | //bspLeaves[j]->Mail();
|
---|
[1020] | 4364 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
[639] | 4365 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4366 |
|
---|
| 4367 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 4368 |
|
---|
[801] | 4369 | //-- export the sample rays
|
---|
[1020] | 4370 | if (mExportRays)
|
---|
[442] | 4371 | {
|
---|
[694] | 4372 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 4373 | if (1)
|
---|
[442] | 4374 | {
|
---|
[639] | 4375 | VssRayContainer vcRays;
|
---|
| 4376 | VssRayContainer collectRays;
|
---|
| 4377 |
|
---|
| 4378 | raysOut = min((int)rays.size(), 100);
|
---|
| 4379 |
|
---|
| 4380 | // collect intial view cells
|
---|
| 4381 | ViewCellContainer leaves;
|
---|
| 4382 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4383 |
|
---|
| 4384 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4385 |
|
---|
| 4386 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4387 | {
|
---|
[639] | 4388 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4389 |
|
---|
| 4390 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4391 |
|
---|
[639] | 4392 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4393 | {
|
---|
| 4394 | collectRays.push_back(*rit);
|
---|
| 4395 | }
|
---|
[574] | 4396 | }
|
---|
[639] | 4397 |
|
---|
| 4398 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4399 |
|
---|
| 4400 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4401 | {
|
---|
| 4402 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4403 |
|
---|
| 4404 | if (p < raysOut)
|
---|
| 4405 | vcRays.push_back(*rit);
|
---|
| 4406 | }
|
---|
[801] | 4407 |
|
---|
[1052] | 4408 | //Debug << "#rays: " << (int)vcRays.size() << endl;
|
---|
[1047] | 4409 |
|
---|
[639] | 4410 | //-- export rays piercing this view cell
|
---|
| 4411 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4412 | }
|
---|
[651] | 4413 |
|
---|
[694] | 4414 | // associate new rays with output view cell
|
---|
[1047] | 4415 | if (0)
|
---|
[639] | 4416 | {
|
---|
| 4417 | VssRayContainer vcRays;
|
---|
| 4418 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
[801] | 4419 |
|
---|
[639] | 4420 | // check whether we can add the current ray to the output rays
|
---|
| 4421 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4422 | {
|
---|
| 4423 | VssRay *ray = rays[k];
|
---|
| 4424 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4425 | {
|
---|
| 4426 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4427 |
|
---|
| 4428 | if (rayvc == vc)
|
---|
| 4429 | vcRays.push_back(ray);
|
---|
| 4430 | }
|
---|
| 4431 | }
|
---|
| 4432 |
|
---|
| 4433 | //-- export rays piercing this view cell
|
---|
| 4434 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4435 | }
|
---|
| 4436 |
|
---|
[442] | 4437 | }
|
---|
[639] | 4438 |
|
---|
[574] | 4439 |
|
---|
[1020] | 4440 | //-- export view cell geometry
|
---|
[478] | 4441 | exporter->SetWireframe();
|
---|
[442] | 4442 |
|
---|
[478] | 4443 | Material m;//= RandomMaterial();
|
---|
| 4444 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4445 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4446 |
|
---|
[580] | 4447 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 4448 |
|
---|
| 4449 | exporter->SetFilled();
|
---|
[503] | 4450 |
|
---|
[1020] | 4451 |
|
---|
[801] | 4452 | //-- export pvs
|
---|
[574] | 4453 | if (1)
|
---|
| 4454 | {
|
---|
[639] | 4455 | ObjectPvsMap::const_iterator oit,
|
---|
[801] | 4456 | oit_end = pvs.mEntries.end();
|
---|
[483] | 4457 |
|
---|
[801] | 4458 | Intersectable::NewMail();
|
---|
[580] | 4459 |
|
---|
[639] | 4460 | // output PVS of view cell
|
---|
[801] | 4461 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4462 | {
|
---|
| 4463 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4464 |
|
---|
[639] | 4465 | if (!intersect->Mailed())
|
---|
| 4466 | {
|
---|
[643] | 4467 | m = RandomMaterial();
|
---|
| 4468 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4469 |
|
---|
[639] | 4470 | exporter->ExportIntersectable(intersect);
|
---|
| 4471 | intersect->Mail();
|
---|
| 4472 | }
|
---|
[503] | 4473 | }
|
---|
[442] | 4474 | }
|
---|
[801] | 4475 |
|
---|
| 4476 | if (0)
|
---|
| 4477 | { // export scene geometry
|
---|
[643] | 4478 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4479 | exporter->SetForcedMaterial(m);
|
---|
| 4480 |
|
---|
[639] | 4481 | exporter->ExportGeometry(objects);
|
---|
| 4482 | }
|
---|
[503] | 4483 |
|
---|
[478] | 4484 | DEL_PTR(exporter);
|
---|
| 4485 | cout << "finished" << endl;
|
---|
[442] | 4486 | }
|
---|
[475] | 4487 |
|
---|
| 4488 | Debug << endl;
|
---|
[442] | 4489 | }
|
---|
| 4490 |
|
---|
| 4491 |
|
---|
[1021] | 4492 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4493 | {
|
---|
[1021] | 4494 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4495 |
|
---|
[1021] | 4496 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4497 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4498 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4499 | const Vector3 width = Vector3(w);
|
---|
| 4500 |
|
---|
| 4501 | PrVs testPrVs;
|
---|
| 4502 |
|
---|
| 4503 | if (exporter)
|
---|
| 4504 | {
|
---|
| 4505 | ViewCellContainer viewCells;
|
---|
| 4506 |
|
---|
| 4507 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4508 |
|
---|
[1021] | 4509 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4510 |
|
---|
[1021] | 4511 | exporter->SetWireframe();
|
---|
[482] | 4512 |
|
---|
[1021] | 4513 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4514 | exporter->ExportBox(tbox);
|
---|
| 4515 |
|
---|
| 4516 | exporter->SetFilled();
|
---|
[503] | 4517 |
|
---|
[1021] | 4518 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
| 4519 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
[564] | 4520 |
|
---|
[1021] | 4521 | //exporter->ResetForcedMaterial();
|
---|
| 4522 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
| 4523 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
[591] | 4524 |
|
---|
[1021] | 4525 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4526 | exporter->ExportGeometry(objects);
|
---|
[547] | 4527 |
|
---|
[1021] | 4528 | delete exporter;
|
---|
[482] | 4529 | }
|
---|
[1021] | 4530 | }
|
---|
[482] | 4531 |
|
---|
[547] | 4532 |
|
---|
[1021] | 4533 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4534 | ViewCellContainer &viewCells) const
|
---|
| 4535 | {
|
---|
| 4536 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4537 | }
|
---|
| 4538 |
|
---|
| 4539 |
|
---|
[1021] | 4540 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4541 | const Vector3 &termination,
|
---|
| 4542 | ViewCellContainer &viewcells)
|
---|
| 4543 | {
|
---|
| 4544 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4545 | }
|
---|
| 4546 |
|
---|
| 4547 |
|
---|
[979] | 4548 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4549 | {
|
---|
| 4550 | int numSamples;
|
---|
[991] | 4551 |
|
---|
[1004] | 4552 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4553 | cout << "samples" << numSamples << endl;
|
---|
| 4554 |
|
---|
| 4555 | vector<RenderCostSample> samples;
|
---|
| 4556 |
|
---|
| 4557 | if (!preprocessor->GetRenderer())
|
---|
| 4558 | return;
|
---|
| 4559 |
|
---|
[991] | 4560 | //start the from point queries
|
---|
[979] | 4561 | long startTime = GetTime();
|
---|
| 4562 | cout << "starting sampling of render cost ... ";
|
---|
| 4563 |
|
---|
[1001] | 4564 | preprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4565 |
|
---|
| 4566 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4567 |
|
---|
| 4568 |
|
---|
| 4569 | // counting the pvss
|
---|
| 4570 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4571 |
|
---|
[991] | 4572 | //std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4573 |
|
---|
[979] | 4574 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4575 | {
|
---|
| 4576 | RenderCostSample sample = *rit;
|
---|
[1001] | 4577 |
|
---|
[991] | 4578 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
| 4579 |
|
---|
| 4580 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4581 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
| 4582 |
|
---|
| 4583 | DEL_PTR(hMesh);
|
---|
| 4584 | #if 0
|
---|
| 4585 | if (!sampleMap.find(vc))
|
---|
| 4586 | sampleMap.insert(vc, sample.mVisibleObjects);
|
---|
| 4587 | else
|
---|
| 4588 | sampleMap[vc].Merge(Merge(sample.mVisibleObjects);
|
---|
| 4589 | #endif
|
---|
[979] | 4590 | }
|
---|
| 4591 | }
|
---|
| 4592 |
|
---|
| 4593 |
|
---|
[580] | 4594 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4595 | ViewCell *vc,
|
---|
[1047] | 4596 | const AxisAlignedPlane *clipPlane) const
|
---|
[482] | 4597 | {
|
---|
[660] | 4598 | if (clipPlane)
|
---|
[591] | 4599 | {
|
---|
[1047] | 4600 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4601 |
|
---|
[591] | 4602 | ViewCellContainer leaves;
|
---|
| 4603 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4604 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4605 |
|
---|
| 4606 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4607 | {
|
---|
| 4608 | BspNodeGeometry geom;
|
---|
| 4609 |
|
---|
| 4610 | BspNodeGeometry front;
|
---|
| 4611 | BspNodeGeometry back;
|
---|
| 4612 |
|
---|
| 4613 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4614 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4615 |
|
---|
[1052] | 4616 | const float eps = 0.0001f;
|
---|
[1047] | 4617 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4618 |
|
---|
[710] | 4619 | if (cf == -1)
|
---|
[682] | 4620 | {
|
---|
| 4621 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4622 | }
|
---|
[710] | 4623 | else if (cf == 0)
|
---|
[684] | 4624 | {
|
---|
[682] | 4625 | geom.SplitGeometry(front,
|
---|
| 4626 | back,
|
---|
[1047] | 4627 | plane,
|
---|
[682] | 4628 | mViewSpaceBox,
|
---|
[710] | 4629 | eps);
|
---|
[682] | 4630 |
|
---|
[694] | 4631 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4632 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[801] | 4633 |
|
---|
[683] | 4634 | if (back.Valid())
|
---|
| 4635 | {
|
---|
[682] | 4636 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4637 | }
|
---|
[684] | 4638 | }
|
---|
[591] | 4639 | }
|
---|
| 4640 | }
|
---|
| 4641 | else
|
---|
| 4642 | {
|
---|
[801] | 4643 | // export mesh if available
|
---|
[1001] | 4644 | // TODO: some bug here?
|
---|
| 4645 | if (0 && vc->GetMesh())
|
---|
[801] | 4646 | {
|
---|
| 4647 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4648 | }
|
---|
| 4649 | else
|
---|
[1001] | 4650 | {
|
---|
[801] | 4651 | BspNodeGeometry geom;
|
---|
| 4652 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4653 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4654 | }
|
---|
[591] | 4655 | }
|
---|
[482] | 4656 | }
|
---|
| 4657 |
|
---|
| 4658 |
|
---|
| 4659 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4660 | {
|
---|
[580] | 4661 | ViewCellContainer leaves;
|
---|
| 4662 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4663 |
|
---|
| 4664 | int maxDist = 0;
|
---|
[580] | 4665 |
|
---|
[482] | 4666 | // compute max height difference
|
---|
[580] | 4667 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4668 | {
|
---|
[580] | 4669 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4670 | {
|
---|
| 4671 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4672 |
|
---|
[1001] | 4673 | if (i != j)
|
---|
| 4674 | {
|
---|
| 4675 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
| 4676 |
|
---|
| 4677 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4678 |
|
---|
| 4679 | if (dist > maxDist)
|
---|
| 4680 | maxDist = dist;
|
---|
| 4681 | }
|
---|
[482] | 4682 | }
|
---|
| 4683 | }
|
---|
[580] | 4684 |
|
---|
[492] | 4685 | return maxDist;
|
---|
| 4686 | }
|
---|
[482] | 4687 |
|
---|
[492] | 4688 |
|
---|
[879] | 4689 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4690 | {
|
---|
[1021] | 4691 | if (!ViewCellsConstructed())
|
---|
[508] | 4692 | return NULL;
|
---|
[572] | 4693 |
|
---|
| 4694 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4695 | return NULL;
|
---|
| 4696 |
|
---|
[879] | 4697 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4698 | }
|
---|
[503] | 4699 |
|
---|
| 4700 |
|
---|
| 4701 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4702 | {
|
---|
[726] | 4703 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4704 | BspNodeGeometry geom;
|
---|
[590] | 4705 |
|
---|
| 4706 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4707 |
|
---|
[1001] | 4708 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4709 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4710 |
|
---|
[503] | 4711 | vc->SetMesh(mesh);
|
---|
| 4712 | }
|
---|
[508] | 4713 |
|
---|
| 4714 |
|
---|
[532] | 4715 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4716 | {
|
---|
[535] | 4717 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4718 | }
|
---|
[551] | 4719 |
|
---|
| 4720 |
|
---|
[587] | 4721 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4722 | const bool createMesh)
|
---|
[551] | 4723 | {
|
---|
| 4724 | float area = 0;
|
---|
| 4725 | float volume = 0;
|
---|
| 4726 |
|
---|
[580] | 4727 | ViewCellContainer leaves;
|
---|
[582] | 4728 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4729 |
|
---|
| 4730 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4731 |
|
---|
[693] | 4732 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4733 | {
|
---|
| 4734 | BspNodeGeometry geom;
|
---|
[580] | 4735 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4736 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4737 |
|
---|
[719] | 4738 | const float lVol = geom.GetVolume();
|
---|
| 4739 | const float lArea = geom.GetArea();
|
---|
[693] | 4740 |
|
---|
| 4741 | //(*it)->SetVolume(vol);
|
---|
| 4742 | //(*it)->SetArea(area);
|
---|
| 4743 |
|
---|
| 4744 | area += lArea;
|
---|
| 4745 | volume += lVol;
|
---|
| 4746 |
|
---|
| 4747 | CreateMesh(*it);
|
---|
[551] | 4748 | }
|
---|
| 4749 |
|
---|
| 4750 | viewCell->SetVolume(volume);
|
---|
| 4751 | viewCell->SetArea(area);
|
---|
[563] | 4752 | }
|
---|
[575] | 4753 |
|
---|
| 4754 |
|
---|
[693] | 4755 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4756 | {
|
---|
| 4757 | ViewCellContainer leaves;
|
---|
| 4758 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4759 |
|
---|
| 4760 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4761 |
|
---|
| 4762 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4763 | float subdivVol = 0;
|
---|
| 4764 | float newVol = 0;
|
---|
| 4765 |
|
---|
| 4766 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4767 | {
|
---|
| 4768 | BspNodeGeometry geom;
|
---|
| 4769 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4770 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4771 |
|
---|
| 4772 | const float lVol = geom.GetVolume();
|
---|
| 4773 |
|
---|
| 4774 | newVol += lVol;
|
---|
| 4775 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4776 |
|
---|
[704] | 4777 | float thres = 0.9f;
|
---|
[697] | 4778 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4779 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4780 | }
|
---|
| 4781 |
|
---|
| 4782 | Debug << "exact volume: " << vol << endl;
|
---|
| 4783 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4784 | Debug << "new volume: " << newVol << endl;
|
---|
| 4785 | }
|
---|
| 4786 |
|
---|
| 4787 |
|
---|
[577] | 4788 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4789 | {
|
---|
| 4790 | // TODO: do I still need this here?
|
---|
[590] | 4791 | if (0)
|
---|
[693] | 4792 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4793 | }
|
---|
[575] | 4794 |
|
---|
[1021] | 4795 |
|
---|
| 4796 |
|
---|
| 4797 | /**************************************************************************/
|
---|
[1047] | 4798 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4799 | /**************************************************************************/
|
---|
| 4800 |
|
---|
| 4801 |
|
---|
| 4802 | VspOspViewCellsManager::VspOspViewCellsManager(VspTree *vspTree, OspTree *ospTree):
|
---|
| 4803 | ViewCellsManager(), mVspTree(vspTree), mOspTree(ospTree)
|
---|
[859] | 4804 | {
|
---|
[1027] | 4805 | mHierarchyManager = new HierarchyManager(*vspTree, *ospTree);
|
---|
| 4806 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
[1021] | 4807 | mVspTree->SetViewCellsManager(this);
|
---|
| 4808 | mVspTree->mViewCellsTree = mViewCellsTree;
|
---|
| 4809 | }
|
---|
[859] | 4810 |
|
---|
| 4811 |
|
---|
[1021] | 4812 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4813 | {
|
---|
[1027] | 4814 | DEL_PTR(mHierarchyManager);
|
---|
[1021] | 4815 | }
|
---|
| 4816 |
|
---|
| 4817 |
|
---|
| 4818 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4819 | {
|
---|
| 4820 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4821 | }
|
---|
| 4822 |
|
---|
| 4823 |
|
---|
| 4824 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4825 | {
|
---|
| 4826 | // view cells tree constructed
|
---|
| 4827 | if (!ViewCellsTreeConstructed())
|
---|
| 4828 | {
|
---|
| 4829 | mVspTree->CollectViewCells(mViewCells, false);
|
---|
| 4830 | }
|
---|
| 4831 | else
|
---|
| 4832 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4833 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4834 | }
|
---|
| 4835 | }
|
---|
| 4836 |
|
---|
| 4837 |
|
---|
| 4838 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4839 | {
|
---|
| 4840 | return mVspTree->GetRoot() != NULL;
|
---|
| 4841 | }
|
---|
| 4842 |
|
---|
| 4843 |
|
---|
| 4844 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4845 | {
|
---|
| 4846 | return new VspViewCell(mesh);
|
---|
| 4847 | }
|
---|
| 4848 |
|
---|
| 4849 |
|
---|
| 4850 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4851 | const VssRayContainer &rays)
|
---|
| 4852 | {
|
---|
| 4853 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4854 |
|
---|
[1027] | 4855 | Debug << "here125 view space box " << mViewSpaceBox << endl;
|
---|
| 4856 |
|
---|
[1021] | 4857 | // if view cells were already constructed
|
---|
| 4858 | if (ViewCellsConstructed())
|
---|
| 4859 | return 0;
|
---|
| 4860 |
|
---|
| 4861 | int sampleContributions = 0;
|
---|
| 4862 |
|
---|
| 4863 | VssRayContainer sampleRays;
|
---|
| 4864 |
|
---|
| 4865 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4866 |
|
---|
| 4867 | VssRayContainer constructionRays;
|
---|
| 4868 | VssRayContainer savedRays;
|
---|
| 4869 |
|
---|
| 4870 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4871 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4872 |
|
---|
| 4873 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4874 |
|
---|
| 4875 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
| 4876 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4877 |
|
---|
| 4878 | long startTime;
|
---|
| 4879 |
|
---|
[1027] | 4880 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1021] | 4881 |
|
---|
[1027] | 4882 |
|
---|
[1021] | 4883 | //-- stats
|
---|
| 4884 | Debug << mVspTree->GetStatistics() << endl;
|
---|
| 4885 |
|
---|
| 4886 | ResetViewCells();
|
---|
| 4887 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4888 |
|
---|
| 4889 |
|
---|
| 4890 | startTime = GetTime();
|
---|
| 4891 |
|
---|
| 4892 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4893 |
|
---|
| 4894 | // recast rest of rays
|
---|
| 4895 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4896 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4897 |
|
---|
| 4898 | cout << "finished" << endl;
|
---|
| 4899 |
|
---|
| 4900 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 4901 | << " secs" << endl;
|
---|
| 4902 |
|
---|
| 4903 | cout << "construction finished" << endl;
|
---|
| 4904 |
|
---|
| 4905 | // real meshes are contructed at this stage
|
---|
| 4906 | if (0)
|
---|
| 4907 | {
|
---|
| 4908 | cout << "finalizing view cells ... ";
|
---|
| 4909 | FinalizeViewCells(true);
|
---|
| 4910 | cout << "finished" << endl;
|
---|
| 4911 | }
|
---|
| 4912 |
|
---|
| 4913 | return sampleContributions;
|
---|
| 4914 | }
|
---|
| 4915 |
|
---|
| 4916 |
|
---|
| 4917 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4918 | const VssRayContainer &rays)
|
---|
| 4919 | {
|
---|
| 4920 | if (!ViewCellsConstructed())
|
---|
| 4921 | {
|
---|
| 4922 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 4923 | return 0;
|
---|
| 4924 | }
|
---|
| 4925 |
|
---|
| 4926 |
|
---|
[1027] | 4927 | // take this step only if
|
---|
| 4928 | // view cells already constructed before post processing step
|
---|
| 4929 | // (e.g., because they were loaded)
|
---|
[1021] | 4930 | if (mViewCellsFinished)
|
---|
| 4931 | {
|
---|
| 4932 | FinalizeViewCells(true);
|
---|
| 4933 | EvaluateViewCellsStats();
|
---|
| 4934 |
|
---|
| 4935 | return 0;
|
---|
| 4936 | }
|
---|
| 4937 |
|
---|
| 4938 | // check if new view cells turned invalid
|
---|
| 4939 | int minPvs, maxPvs;
|
---|
| 4940 |
|
---|
| 4941 | if (0)
|
---|
| 4942 | {
|
---|
| 4943 | minPvs = mMinPvsSize;
|
---|
| 4944 | maxPvs = mMaxPvsSize;
|
---|
| 4945 | }
|
---|
| 4946 | else
|
---|
| 4947 | {
|
---|
| 4948 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 4949 | maxPvs = mMaxPvsSize;
|
---|
| 4950 | }
|
---|
| 4951 |
|
---|
| 4952 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4953 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4954 |
|
---|
| 4955 | SetValidity(minPvs, maxPvs);
|
---|
| 4956 |
|
---|
| 4957 |
|
---|
| 4958 | // area has to be recomputed
|
---|
| 4959 | mTotalAreaValid = false;
|
---|
| 4960 | VssRayContainer postProcessRays;
|
---|
| 4961 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4962 |
|
---|
| 4963 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 4964 |
|
---|
| 4965 |
|
---|
| 4966 | // should maybe be done here to allow merge working with area or volume
|
---|
| 4967 | // and to correct the rendering statistics
|
---|
| 4968 | if (0) FinalizeViewCells(false);
|
---|
| 4969 |
|
---|
| 4970 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4971 | ViewCell *root = ConstructSpatialMergeTree(mVspTree->GetRoot());
|
---|
| 4972 | mViewCellsTree->SetRoot(root);
|
---|
| 4973 |
|
---|
| 4974 | // compute pvs
|
---|
| 4975 | ObjectPvs pvs;
|
---|
| 4976 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 4977 |
|
---|
| 4978 |
|
---|
| 4979 | //-- render simulation after merge + refine
|
---|
| 4980 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 4981 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4982 | SimulationStatistics ss;
|
---|
| 4983 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[859] | 4984 |
|
---|
| 4985 |
|
---|
[1021] | 4986 | cout << " finished" << endl;
|
---|
| 4987 | cout << ss << endl;
|
---|
| 4988 | Debug << ss << endl;
|
---|
[859] | 4989 |
|
---|
| 4990 |
|
---|
[1021] | 4991 | //-- compression
|
---|
| 4992 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4993 | {
|
---|
| 4994 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 4995 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 4996 |
|
---|
[1021] | 4997 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 4998 |
|
---|
[1021] | 4999 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 5000 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5001 | }
|
---|
[1021] | 5002 |
|
---|
| 5003 | // compute final meshes and volume / area
|
---|
| 5004 | if (1) FinalizeViewCells(true);
|
---|
| 5005 |
|
---|
| 5006 | // write view cells to disc
|
---|
| 5007 | if (mExportViewCells)
|
---|
| 5008 | {
|
---|
| 5009 | char filename[100];
|
---|
| 5010 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 5011 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 5012 | }
|
---|
| 5013 |
|
---|
| 5014 |
|
---|
| 5015 | return 0;
|
---|
[859] | 5016 | }
|
---|
| 5017 |
|
---|
[1021] | 5018 |
|
---|
| 5019 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5020 | {
|
---|
[1021] | 5021 | return VSP_OSP;
|
---|
| 5022 | }
|
---|
[859] | 5023 |
|
---|
[1021] | 5024 |
|
---|
| 5025 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5026 | {
|
---|
| 5027 | // terminate recursion
|
---|
| 5028 | if (root->IsLeaf())
|
---|
| 5029 | {
|
---|
| 5030 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5031 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5032 | return leaf->GetViewCell();
|
---|
| 5033 | }
|
---|
| 5034 |
|
---|
| 5035 |
|
---|
| 5036 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5037 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5038 |
|
---|
| 5039 | // evaluate merge cost for priority traversal
|
---|
| 5040 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 5041 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5042 |
|
---|
| 5043 | float volume = 0;
|
---|
| 5044 |
|
---|
| 5045 | VspNode *front = interior->GetFront();
|
---|
| 5046 | VspNode *back = interior->GetBack();
|
---|
| 5047 |
|
---|
| 5048 |
|
---|
| 5049 | ObjectPvs frontPvs, backPvs;
|
---|
| 5050 |
|
---|
| 5051 | //-- recursivly compute child hierarchies
|
---|
| 5052 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5053 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5054 |
|
---|
| 5055 |
|
---|
| 5056 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5057 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5058 |
|
---|
| 5059 | volume += backVc->GetVolume();
|
---|
| 5060 | volume += frontVc->GetVolume();
|
---|
| 5061 |
|
---|
| 5062 | viewCellInterior->SetVolume(volume);
|
---|
| 5063 |
|
---|
| 5064 | return viewCellInterior;
|
---|
| 5065 | }
|
---|
| 5066 |
|
---|
| 5067 |
|
---|
| 5068 |
|
---|
| 5069 | void VspOspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 5070 | {
|
---|
| 5071 | // terminate traversal
|
---|
| 5072 | if (root->IsLeaf())
|
---|
| 5073 | {
|
---|
| 5074 | pvs = root->GetPvs();
|
---|
| 5075 | SetScalarPvsSize(root, root->GetPvs().GetSize());
|
---|
| 5076 |
|
---|
[997] | 5077 | return;
|
---|
[1021] | 5078 | }
|
---|
| 5079 |
|
---|
| 5080 | //-- interior node => propagate pvs up
|
---|
| 5081 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 5082 | interior->GetPvs().Clear();
|
---|
| 5083 | pvs.Clear();
|
---|
| 5084 | vector<ObjectPvs> pvsList;
|
---|
[997] | 5085 |
|
---|
[1021] | 5086 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[904] | 5087 |
|
---|
[1021] | 5088 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 5089 | {
|
---|
| 5090 | ObjectPvs objPvs;
|
---|
| 5091 |
|
---|
| 5092 | //-- recursivly compute child pvss
|
---|
| 5093 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
[904] | 5094 |
|
---|
[1021] | 5095 | // store pvs in vector
|
---|
| 5096 | pvsList.push_back(objPvs);
|
---|
| 5097 | }
|
---|
| 5098 |
|
---|
| 5099 | #if 1
|
---|
| 5100 | Intersectable::NewMail();
|
---|
| 5101 |
|
---|
| 5102 | //-- faster way of computing pvs:
|
---|
| 5103 | // construct merged pvs by adding
|
---|
| 5104 | // and only those of the next pvs which were not mailed.
|
---|
| 5105 | // note: sumpdf is not correct!!
|
---|
| 5106 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 5107 |
|
---|
| 5108 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 5109 | {
|
---|
| 5110 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
[904] | 5111 |
|
---|
[1021] | 5112 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 5113 | {
|
---|
| 5114 | Intersectable *intersect = (*pit).first;
|
---|
| 5115 |
|
---|
| 5116 | if (!intersect->Mailed())
|
---|
| 5117 | {
|
---|
| 5118 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 5119 | intersect->Mail();
|
---|
| 5120 | }
|
---|
| 5121 | }
|
---|
| 5122 | }
|
---|
| 5123 |
|
---|
| 5124 | // store pvs in this node
|
---|
| 5125 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 5126 | {
|
---|
| 5127 | interior->SetPvs(pvs);
|
---|
| 5128 | }
|
---|
[904] | 5129 |
|
---|
[1021] | 5130 | // set new pvs size
|
---|
| 5131 | SetScalarPvsSize(interior, pvs.GetSize());
|
---|
[904] | 5132 |
|
---|
[1021] | 5133 |
|
---|
| 5134 | #else
|
---|
| 5135 |
|
---|
| 5136 | // really merge cells: slow put sumpdf is correct
|
---|
| 5137 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 5138 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 5139 | #endif
|
---|
| 5140 | }
|
---|
| 5141 |
|
---|
| 5142 |
|
---|
| 5143 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5144 | {
|
---|
| 5145 | if (!ViewCellsConstructed())
|
---|
| 5146 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5147 |
|
---|
| 5148 | // TODO: set reasonable limit
|
---|
| 5149 | const int limit = 20;
|
---|
| 5150 |
|
---|
| 5151 | for (int i = 0; i < limit; ++ i)
|
---|
| 5152 | {
|
---|
| 5153 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5154 |
|
---|
[1021] | 5155 | if (mVspTree->ViewPointValid(viewPoint))
|
---|
| 5156 | {
|
---|
| 5157 | return true;
|
---|
| 5158 | }
|
---|
[904] | 5159 | }
|
---|
[859] | 5160 |
|
---|
[1021] | 5161 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5162 | return false;
|
---|
[884] | 5163 | }
|
---|
| 5164 |
|
---|
| 5165 |
|
---|
[1027] | 5166 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5167 | ViewCell *vc,
|
---|
[1047] | 5168 | const AxisAlignedPlane *clipPlane) const
|
---|
[1027] | 5169 | {
|
---|
| 5170 | ViewCellContainer leaves;
|
---|
| 5171 |
|
---|
| 5172 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5173 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5174 |
|
---|
[1047] | 5175 | Plane3 plane;
|
---|
| 5176 |
|
---|
| 5177 | if (clipPlane)
|
---|
| 5178 | plane = clipPlane->GetPlane();
|
---|
| 5179 |
|
---|
[1027] | 5180 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5181 | {
|
---|
| 5182 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
| 5183 | VspLeaf *l = vspVc->mLeaf;
|
---|
| 5184 |
|
---|
| 5185 | const AxisAlignedBox3 box = mVspTree->GetBBox(vspVc->mLeaf);
|
---|
[1047] | 5186 |
|
---|
| 5187 | if (clipPlane)
|
---|
| 5188 | {
|
---|
| 5189 | if (box.Side(plane) == -1)
|
---|
| 5190 | exporter->ExportBox(box);
|
---|
| 5191 | else if (box.Side(plane) == 0)
|
---|
| 5192 | {
|
---|
| 5193 | AxisAlignedBox3 fbox, bbox;
|
---|
[1027] | 5194 |
|
---|
[1047] | 5195 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
| 5196 |
|
---|
| 5197 | exporter->ExportBox(bbox);
|
---|
| 5198 | }
|
---|
| 5199 | }
|
---|
| 5200 | else
|
---|
| 5201 | {
|
---|
[1027] | 5202 | exporter->ExportBox(box);
|
---|
[1047] | 5203 | }
|
---|
[1027] | 5204 | }
|
---|
| 5205 | }
|
---|
| 5206 |
|
---|
| 5207 |
|
---|
[1021] | 5208 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5209 | {
|
---|
| 5210 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5211 | // validy update in preprocessor for all managers)
|
---|
| 5212 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5213 |
|
---|
[1021] | 5214 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5215 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5216 | }
|
---|
| 5217 |
|
---|
| 5218 |
|
---|
| 5219 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5220 | const VssRayContainer &sampleRays)
|
---|
[859] | 5221 | {
|
---|
[997] | 5222 | if (!ViewCellsConstructed())
|
---|
| 5223 | return;
|
---|
[1027] | 5224 |
|
---|
[1021] | 5225 | VssRayContainer visRays;
|
---|
| 5226 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5227 |
|
---|
[1021] | 5228 | //-- export view cells
|
---|
| 5229 | if (1)
|
---|
[1047] | 5230 | {
|
---|
| 5231 | // hack pvs
|
---|
[1021] | 5232 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5233 | mColorCode = 0;
|
---|
[1021] | 5234 |
|
---|
| 5235 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5236 |
|
---|
| 5237 | if (exporter)
|
---|
| 5238 | {
|
---|
| 5239 | cout << "exporting view cells after post process ... ";
|
---|
[859] | 5240 |
|
---|
[1021] | 5241 | if (0)
|
---|
| 5242 | {
|
---|
| 5243 | // export view space box
|
---|
| 5244 | exporter->SetWireframe();
|
---|
| 5245 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 5246 | exporter->SetFilled();
|
---|
| 5247 | }
|
---|
[859] | 5248 |
|
---|
[1021] | 5249 | if (mExportGeometry)
|
---|
| 5250 | {
|
---|
| 5251 | exporter->ExportGeometry(objects);
|
---|
| 5252 | }
|
---|
[859] | 5253 |
|
---|
[1021] | 5254 | // export rays
|
---|
[1052] | 5255 | if (1 && mExportRays)
|
---|
[1021] | 5256 | {
|
---|
| 5257 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5258 | }
|
---|
| 5259 |
|
---|
| 5260 | //exporter->SetFilled();
|
---|
| 5261 |
|
---|
| 5262 | // HACK: export without clip plane
|
---|
[1052] | 5263 | const bool b = mUseClipPlaneForViz;
|
---|
| 5264 | mUseClipPlaneForViz = false;
|
---|
[1021] | 5265 |
|
---|
| 5266 | ExportViewCellsForViz(exporter);
|
---|
| 5267 |
|
---|
[1052] | 5268 | mUseClipPlaneForViz = b;
|
---|
[1021] | 5269 | delete exporter;
|
---|
| 5270 |
|
---|
| 5271 | cout << "finished" << endl;
|
---|
| 5272 | }
|
---|
| 5273 |
|
---|
| 5274 | mColorCode = savedColorCode;
|
---|
| 5275 | }
|
---|
| 5276 |
|
---|
| 5277 | //-- export single view cells
|
---|
| 5278 | ExportBspPvs(objects, visRays);
|
---|
[859] | 5279 | }
|
---|
| 5280 |
|
---|
[1021] | 5281 |
|
---|
| 5282 | void VspOspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 5283 | const VssRayContainer &rays)
|
---|
[697] | 5284 | {
|
---|
[1021] | 5285 | int leafOut;
|
---|
| 5286 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[580] | 5287 |
|
---|
[1021] | 5288 | ViewCell::NewMail();
|
---|
| 5289 |
|
---|
| 5290 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5291 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 5292 | Debug << "\nOutput view cells: " << endl;
|
---|
| 5293 |
|
---|
| 5294 | const bool sortViewCells = true;
|
---|
| 5295 |
|
---|
| 5296 | // sort view cells to visualize the largest view cells
|
---|
| 5297 | if (sortViewCells)
|
---|
[697] | 5298 | {
|
---|
[1021] | 5299 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 5300 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5301 | }
|
---|
| 5302 |
|
---|
| 5303 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 5304 |
|
---|
| 5305 | int raysOut = 0;
|
---|
| 5306 |
|
---|
| 5307 | //-- some rays for output
|
---|
| 5308 | for (int i = 0; i < limit; ++ i)
|
---|
| 5309 | {
|
---|
| 5310 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 5311 |
|
---|
| 5312 | ViewCell *vc;
|
---|
[704] | 5313 |
|
---|
[1021] | 5314 | if (sortViewCells) // largest view cell pvs first
|
---|
| 5315 | vc = mViewCells[i];
|
---|
| 5316 | else
|
---|
| 5317 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[704] | 5318 |
|
---|
[1021] | 5319 | ObjectPvs pvs;
|
---|
| 5320 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5321 |
|
---|
[1021] | 5322 | //bspLeaves[j]->Mail();
|
---|
| 5323 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
| 5324 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5325 |
|
---|
| 5326 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
| 5327 |
|
---|
| 5328 | //-- export the sample rays
|
---|
| 5329 | if (mExportRays)
|
---|
| 5330 | {
|
---|
| 5331 | // output rays stored with the view cells during subdivision
|
---|
[1047] | 5332 | if (1)
|
---|
[1021] | 5333 | {
|
---|
| 5334 | VssRayContainer vcRays;
|
---|
| 5335 | VssRayContainer collectRays;
|
---|
| 5336 |
|
---|
| 5337 | raysOut = min((int)rays.size(), 100);
|
---|
| 5338 |
|
---|
[1047] | 5339 | Debug << "here12 " << raysOut << endl;
|
---|
| 5340 |
|
---|
[1021] | 5341 | // collect intial view cells
|
---|
| 5342 | ViewCellContainer leaves;
|
---|
| 5343 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5344 |
|
---|
| 5345 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 5346 |
|
---|
| 5347 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5348 | {
|
---|
[1047] | 5349 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
|
---|
[1021] | 5350 |
|
---|
| 5351 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5352 |
|
---|
| 5353 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5354 | {
|
---|
| 5355 | collectRays.push_back(*rit);
|
---|
| 5356 | }
|
---|
| 5357 | }
|
---|
| 5358 |
|
---|
| 5359 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 5360 |
|
---|
| 5361 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5362 | {
|
---|
| 5363 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5364 |
|
---|
| 5365 | if (p < raysOut)
|
---|
| 5366 | vcRays.push_back(*rit);
|
---|
| 5367 | }
|
---|
| 5368 |
|
---|
| 5369 | //-- export rays piercing this view cell
|
---|
| 5370 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
| 5371 | }
|
---|
| 5372 |
|
---|
| 5373 | // associate new rays with output view cell
|
---|
[1047] | 5374 | if (0)
|
---|
[1021] | 5375 | {
|
---|
| 5376 | VssRayContainer vcRays;
|
---|
| 5377 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 5378 |
|
---|
| 5379 | // check whether we can add the current ray to the output rays
|
---|
| 5380 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 5381 | {
|
---|
| 5382 | VssRay *ray = rays[k];
|
---|
| 5383 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 5384 | {
|
---|
| 5385 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 5386 |
|
---|
| 5387 | if (rayvc == vc)
|
---|
| 5388 | vcRays.push_back(ray);
|
---|
| 5389 | }
|
---|
| 5390 | }
|
---|
| 5391 |
|
---|
| 5392 | //-- export rays piercing this view cell
|
---|
| 5393 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 5394 | }
|
---|
| 5395 |
|
---|
| 5396 | }
|
---|
| 5397 |
|
---|
| 5398 |
|
---|
| 5399 | //-- export view cell geometry
|
---|
[697] | 5400 | exporter->SetWireframe();
|
---|
| 5401 |
|
---|
[1021] | 5402 | Material m;//= RandomMaterial();
|
---|
| 5403 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5404 | exporter->SetForcedMaterial(m);
|
---|
| 5405 |
|
---|
| 5406 | ExportViewCellGeometry(exporter, vc);
|
---|
| 5407 |
|
---|
[697] | 5408 | exporter->SetFilled();
|
---|
| 5409 |
|
---|
[705] | 5410 |
|
---|
[1021] | 5411 | //-- export pvs
|
---|
| 5412 | if (1)
|
---|
| 5413 | {
|
---|
| 5414 | ObjectPvsMap::const_iterator oit,
|
---|
| 5415 | oit_end = pvs.mEntries.end();
|
---|
[704] | 5416 |
|
---|
[1021] | 5417 | Intersectable::NewMail();
|
---|
[697] | 5418 |
|
---|
[1021] | 5419 | // output PVS of view cell
|
---|
| 5420 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 5421 | {
|
---|
| 5422 | Intersectable *intersect = (*oit).first;
|
---|
| 5423 |
|
---|
| 5424 | if (!intersect->Mailed())
|
---|
| 5425 | {
|
---|
| 5426 | m = RandomMaterial();
|
---|
| 5427 | exporter->SetForcedMaterial(m);
|
---|
| 5428 |
|
---|
| 5429 | exporter->ExportIntersectable(intersect);
|
---|
| 5430 | intersect->Mail();
|
---|
| 5431 | }
|
---|
| 5432 | }
|
---|
| 5433 | }
|
---|
| 5434 |
|
---|
| 5435 | if (0)
|
---|
| 5436 | { // export scene geometry
|
---|
| 5437 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 5438 | exporter->SetForcedMaterial(m);
|
---|
| 5439 |
|
---|
| 5440 | exporter->ExportGeometry(objects);
|
---|
| 5441 | }
|
---|
| 5442 |
|
---|
| 5443 | DEL_PTR(exporter);
|
---|
| 5444 | cout << "finished" << endl;
|
---|
[697] | 5445 | }
|
---|
[1021] | 5446 |
|
---|
| 5447 | Debug << endl;
|
---|
[697] | 5448 | }
|
---|
| 5449 |
|
---|
| 5450 |
|
---|
[1021] | 5451 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5452 | ViewCellContainer &viewCells) const
|
---|
| 5453 | {
|
---|
| 5454 | return mVspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 5455 | }
|
---|
[580] | 5456 |
|
---|
[1021] | 5457 |
|
---|
| 5458 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5459 | const Vector3 &termination,
|
---|
| 5460 | ViewCellContainer &viewcells)
|
---|
| 5461 | {
|
---|
| 5462 | return mVspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 5463 | }
|
---|
| 5464 |
|
---|
| 5465 |
|
---|
| 5466 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5467 | const bool exportPvs,
|
---|
| 5468 | const ObjectContainer &objects)
|
---|
| 5469 | {
|
---|
| 5470 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5471 | return false;
|
---|
| 5472 |
|
---|
| 5473 | cout << "exporting view cells to xml ... ";
|
---|
| 5474 |
|
---|
| 5475 | #if ZIPPED_VIEWCELLS
|
---|
| 5476 | ogzstream stream(filename.c_str());
|
---|
| 5477 | #else
|
---|
| 5478 | std::ofstream stream(filename.c_str());
|
---|
| 5479 | #endif
|
---|
| 5480 |
|
---|
| 5481 | // for output we need unique ids for each view cell
|
---|
| 5482 | CreateUniqueViewCellIds();
|
---|
| 5483 |
|
---|
| 5484 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5485 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5486 |
|
---|
| 5487 | //-- the view space bounding box
|
---|
| 5488 | stream << "<ViewSpaceBox"
|
---|
| 5489 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 5490 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 5491 |
|
---|
| 5492 |
|
---|
| 5493 | //-- export bounding boxes
|
---|
| 5494 | stream << "<BoundingBoxes>" << endl;
|
---|
| 5495 |
|
---|
| 5496 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 5497 |
|
---|
| 5498 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
[580] | 5499 | {
|
---|
[1021] | 5500 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 5501 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 5502 |
|
---|
| 5503 | //-- the bounding boxes
|
---|
| 5504 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
| 5505 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 5506 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[580] | 5507 | }
|
---|
[1021] | 5508 |
|
---|
| 5509 | stream << "</BoundingBoxes>" << endl;
|
---|
| 5510 |
|
---|
| 5511 |
|
---|
| 5512 | //-- export the view cells and the pvs
|
---|
[1027] | 5513 | stream << "<HierarchyType name=\"vspTree\" />" << endl;
|
---|
[1021] | 5514 |
|
---|
| 5515 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5516 |
|
---|
| 5517 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5518 |
|
---|
| 5519 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5520 |
|
---|
| 5521 | stream << "</ViewCells>" << endl;
|
---|
| 5522 |
|
---|
| 5523 |
|
---|
| 5524 | //-- export the spatial hierarchy
|
---|
| 5525 |
|
---|
| 5526 | // the type of the view cells hierarchy
|
---|
| 5527 | stream << "<Hierarchy>" << endl;
|
---|
| 5528 | mVspTree->Export(stream);
|
---|
| 5529 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 5530 |
|
---|
| 5531 | stream << "</VisibilitySolution>" << endl;
|
---|
| 5532 |
|
---|
| 5533 |
|
---|
| 5534 | stream.close();
|
---|
| 5535 | cout << "finished" << endl;
|
---|
| 5536 |
|
---|
| 5537 | return true;
|
---|
| 5538 | }
|
---|
| 5539 |
|
---|
| 5540 |
|
---|
| 5541 |
|
---|
[1027] | 5542 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5543 | const bool active) const
|
---|
[1021] | 5544 | {
|
---|
| 5545 | if (!ViewCellsConstructed())
|
---|
| 5546 | return NULL;
|
---|
| 5547 |
|
---|
| 5548 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 5549 | return NULL;
|
---|
| 5550 |
|
---|
| 5551 | return mVspTree->GetViewCell(point, active);
|
---|
| 5552 | }
|
---|
| 5553 |
|
---|
| 5554 |
|
---|
| 5555 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5556 | {
|
---|
| 5557 | // matt: TODO
|
---|
| 5558 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5559 |
|
---|
| 5560 | ViewCellContainer leaves;
|
---|
| 5561 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5562 |
|
---|
| 5563 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5564 |
|
---|
| 5565 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5566 | {
|
---|
| 5567 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5568 | const AxisAlignedBox3 box = mVspTree->GetBBox(leaf);
|
---|
| 5569 |
|
---|
| 5570 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5571 | }
|
---|
| 5572 |
|
---|
[1021] | 5573 | vc->SetMesh(mesh);
|
---|
| 5574 | }
|
---|
| 5575 |
|
---|
| 5576 |
|
---|
| 5577 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5578 | {
|
---|
| 5579 | // matt: TODO
|
---|
| 5580 | return 0;
|
---|
| 5581 | }
|
---|
| 5582 |
|
---|
| 5583 |
|
---|
| 5584 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5585 | const bool createMesh)
|
---|
| 5586 | {
|
---|
| 5587 | float area = 0;
|
---|
| 5588 | float volume = 0;
|
---|
| 5589 |
|
---|
| 5590 | ViewCellContainer leaves;
|
---|
| 5591 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5592 |
|
---|
| 5593 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5594 |
|
---|
| 5595 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5596 | {
|
---|
[1027] | 5597 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
| 5598 |
|
---|
| 5599 | const AxisAlignedBox3 box = mVspTree->GetBBox(leaf);
|
---|
[1021] | 5600 |
|
---|
[1027] | 5601 | const float lVol = box.GetVolume();
|
---|
| 5602 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5603 |
|
---|
| 5604 | //(*it)->SetVolume(vol);
|
---|
| 5605 | //(*it)->SetArea(area);
|
---|
| 5606 |
|
---|
| 5607 | area += lArea;
|
---|
| 5608 | volume += lVol;
|
---|
| 5609 |
|
---|
| 5610 | CreateMesh(*it);
|
---|
[580] | 5611 | }
|
---|
| 5612 |
|
---|
[1021] | 5613 | viewCell->SetVolume(volume);
|
---|
| 5614 | viewCell->SetArea(area);
|
---|
[580] | 5615 | }
|
---|
[1021] | 5616 |
|
---|
[580] | 5617 |
|
---|
[1021] | 5618 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5619 | {
|
---|
| 5620 | // TODO
|
---|
| 5621 | }
|
---|
[580] | 5622 |
|
---|
[1021] | 5623 |
|
---|
[580] | 5624 | //////////////////////////////////
|
---|
[1002] | 5625 | /*ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
[575] | 5626 | {
|
---|
| 5627 | //TODO
|
---|
| 5628 | return NULL;// new VspBspViewCellsManager();
|
---|
[1002] | 5629 | }*/
|
---|
[580] | 5630 |
|
---|
[860] | 5631 |
|
---|
[878] | 5632 | }
|
---|