[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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| 10 | #include "VspKdTree.h"
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| 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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[440] | 17 |
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[863] | 18 | namespace GtpVisibilityPreprocessor {
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[860] | 19 |
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| 20 |
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[712] | 21 | // HACK
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| 22 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 23 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 24 |
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[697] | 25 |
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| 26 |
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| 27 | template <typename T> class myless
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| 28 | {
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| 29 | public:
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| 30 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 31 | bool operator() (T v1, T v2) const
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| 32 | {
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| 33 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 34 | }
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| 35 | };
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| 36 |
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[706] | 37 | //typedef priority_queue<ViewCell *, vector<ViewCell *>, myless<vector<ViewCell *>::value_type> > FilterQueue;
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[697] | 38 |
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| 39 |
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| 40 |
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[440] | 41 | ViewCellsManager::ViewCellsManager():
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[480] | 42 | mRenderer(NULL),
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[574] | 43 | mInitialSamples(0),
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[440] | 44 | mConstructionSamples(0),
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| 45 | mPostProcessSamples(0),
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[470] | 46 | mVisualizationSamples(0),
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| 47 | mTotalAreaValid(false),
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[517] | 48 | mTotalArea(0.0f),
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[547] | 49 | mViewCellsFinished(false),
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[562] | 50 | mMaxPvsSize(9999999),
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[564] | 51 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 52 | mMaxPvsRatio(1.0),
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| 53 | mViewCellPvsIsUpdated(false)
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[440] | 54 | {
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[542] | 55 | mViewSpaceBox.Initialize();
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[482] | 56 | ParseEnvironment();
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[580] | 57 |
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| 58 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 59 | }
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| 60 |
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[517] | 61 |
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[482] | 62 | void ViewCellsManager::ParseEnvironment()
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| 63 | {
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[503] | 64 | // visualization stuff
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[485] | 65 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 66 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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[547] | 67 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 68 |
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[710] | 69 | environment->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 70 |
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[710] | 71 | // HACK
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| 72 | if (0)
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| 73 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 74 | else
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| 75 | mMinPvsSize = 0;
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| 76 |
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[564] | 77 | environment->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 78 |
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[574] | 79 | environment->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 80 | environment->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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[595] | 81 | environment->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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| 82 |
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[574] | 83 | environment->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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| 84 |
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| 85 | environment->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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[577] | 86 | environment->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 87 |
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[600] | 88 | environment->GetIntValue("ViewCells.active", mNumActiveViewCells);
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[586] | 89 | environment->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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[660] | 90 | environment->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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[591] | 91 | environment->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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[664] | 92 | environment->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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[666] | 93 | environment->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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[697] | 94 | environment->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 95 | environment->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[734] | 96 | environment->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 97 |
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[840] | 98 | environment->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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[844] | 99 | environment->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[837] | 100 |
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[664] | 101 | char buf[100];
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| 102 | environment->GetStringValue("ViewCells.samplingType", buf);
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| 103 |
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[660] | 104 |
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[664] | 105 | if (strcmp(buf, "box") == 0)
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[722] | 106 | {
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[660] | 107 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 108 | }
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[664] | 109 | else if (strcmp(buf, "directional") == 0)
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[722] | 110 | {
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[660] | 111 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 112 | }
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[666] | 113 | else
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| 114 | {
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| 115 | Debug << "error! wrong sampling type" << endl;
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| 116 | exit(0);
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| 117 | }
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[660] | 118 |
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[722] | 119 | environment->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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| 120 |
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| 121 | if (strcmp(buf, "box") == 0)
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| 122 | {
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| 123 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 124 | }
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| 125 | else if (strcmp(buf, "directional") == 0)
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| 126 | {
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| 127 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 128 | }
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| 129 | else
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| 130 | {
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| 131 | Debug << "error! wrong sampling type" << endl;
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| 132 | exit(0);
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| 133 | }
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[503] | 134 |
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[728] | 135 | environment->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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| 136 |
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[734] | 137 | if (strcmp(buf, "perobject") == 0)
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[728] | 138 | {
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| 139 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 140 | }
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| 141 | else if (strcmp(buf, "directional") == 0)
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| 142 | {
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| 143 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 144 | }
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| 145 | else
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| 146 | {
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| 147 | Debug << "error! wrong sampling type" << endl;
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| 148 | exit(0);
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| 149 | }
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| 150 |
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[722] | 151 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
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| 152 |
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[482] | 153 | if (strcmp(buf, "PVS") == 0)
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| 154 | mColorCode = 1;
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| 155 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 156 | mColorCode = 2;
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| 157 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 158 | mColorCode = 3;
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| 159 | else
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| 160 | mColorCode = 0;
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| 161 |
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[664] | 162 |
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[710] | 163 |
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[664] | 164 | Debug << "***********View Cells options ****************" << endl;
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| 165 | Debug << "color code: " << mColorCode << endl;
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| 166 |
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| 167 | Debug << "export rays: " << mExportRays << endl;
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| 168 | Debug << "export geometry: " << mExportGeometry << endl;
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| 169 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 170 |
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[710] | 171 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 172 |
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| 173 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 174 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 175 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 176 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 177 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 178 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 179 | Debug << "export to file: " << mExportViewCells << endl;
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| 180 |
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[801] | 181 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 182 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 183 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 184 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 185 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 186 | Debug << "sampling type: " << mSamplingType << endl;
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[801] | 187 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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[728] | 188 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 189 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 190 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 191 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 192 |
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| 193 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 194 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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| 195 |
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[664] | 196 | Debug << endl;
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[440] | 197 | }
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| 198 |
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[485] | 199 |
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[440] | 200 | ViewCellsManager::~ViewCellsManager()
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| 201 | {
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[480] | 202 | DEL_PTR(mRenderer);
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[580] | 203 |
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[598] | 204 | if (!ViewCellsTreeConstructed())
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| 205 | CLEAR_CONTAINER(mViewCells);
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| 206 | else
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| 207 | DEL_PTR(mViewCellsTree);
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| 208 |
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[503] | 209 | CLEAR_CONTAINER(mMeshContainer);
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[440] | 210 | }
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| 211 |
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[859] | 212 | AxisAlignedBox3
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| 213 | ViewCellsManager::GetViewCellBox(ViewCell *vc)
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| 214 | {
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| 215 | Mesh *m = vc->GetMesh();
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| 216 |
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| 217 | if (m) {
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| 218 | m->ComputeBoundingBox();
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| 219 | return m->mBox;
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| 220 | }
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[485] | 221 |
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[859] | 222 | AxisAlignedBox3 box;
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| 223 |
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| 224 | box.Initialize();
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| 225 |
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| 226 | if (!vc->IsLeaf()) {
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| 227 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 228 |
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| 229 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 230 | for (; it != vci->mChildren.end(); ++it) {
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| 231 | box.Include(GetViewCellBox(*it));
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| 232 | }
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| 233 | }
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| 234 |
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| 235 | return box;
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| 236 | }
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| 237 |
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[693] | 238 | void ViewCellsManager::CollectEmptyViewCells()
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| 239 | {
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| 240 | mEmptyViewCells.clear();
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| 241 | ViewCellContainer leaves;
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| 242 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 243 |
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| 244 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 245 |
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| 246 | cout << "collecting empty view cells" << endl;
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[694] | 247 |
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[693] | 248 | for (it = leaves.begin(); it != it_end; ++ it)
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| 249 | {
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| 250 | if ((*it)->GetPvs().Empty())
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| 251 | {
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| 252 | mEmptyViewCells.push_back(*it);
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| 253 | }
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| 254 | }
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[694] | 255 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 256 | }
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| 257 |
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| 258 |
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[694] | 259 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 260 | {
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| 261 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 262 |
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| 263 | char buf[50];
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| 264 | int i = 0;
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| 265 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 266 | {
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| 267 | if (!(*it)->GetPvs().Empty())
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| 268 | {
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[694] | 269 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 270 | Exporter *exporter = Exporter::GetExporter(buf);
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| 271 |
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| 272 | if (exporter && i < 20)
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| 273 | {
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[694] | 274 | Ray *pray = (*it)->mPiercingRays[0];
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[728] | 275 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: "
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| 276 | << (*it)->GetPvs().GetSize() << " " << (int)pray->intersections.size() << endl;
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[694] | 277 |
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| 278 | exporter->ExportRays((*it)->mPiercingRays);
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| 279 |
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| 280 | exporter->SetFilled();
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| 281 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 282 |
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| 283 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 284 | {
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| 285 | if (pray->intersections[j].mObject)
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| 286 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 287 | }
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| 288 |
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| 289 | //exporter->SetWireframe();
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| 290 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 291 | exporter->ExportGeometry(obj);
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| 292 |
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| 293 | exporter->SetFilled();
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| 294 |
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| 295 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 296 | ExportViewCellGeometry(exporter, *it);
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[694] | 297 |
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| 298 | delete exporter;
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[693] | 299 | }
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| 300 |
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[694] | 301 |
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[693] | 302 | ++ i;
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| 303 | }
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| 304 | }
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[694] | 305 | Debug << "\nSampled " << i << " new view cells (" << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 306 | }
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| 307 |
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| 308 |
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[574] | 309 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 310 | const int sampleType,
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| 311 | VssRayContainer &passSamples) const
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[527] | 312 | {
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[570] | 313 | SimpleRayContainer simpleRays;
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[540] | 314 |
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[573] | 315 | preprocessor->GenerateRays(samplesPerPass,
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| 316 | sampleType,
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[570] | 317 | simpleRays);
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[564] | 318 |
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[573] | 319 | // shoot simple ray and add it to importance samples
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| 320 | preprocessor->CastRays(simpleRays, passSamples);
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[570] | 321 |
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[574] | 322 | return (int)passSamples.size();
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| 323 | }
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[570] | 324 |
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[574] | 325 |
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[607] | 326 |
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[574] | 327 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 328 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 329 | {
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| 330 | cout << "disposing samples ... ";
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[582] | 331 | long startTime = GetTime();
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| 332 | int n = (int)rays.size();
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| 333 |
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[573] | 334 | if (outRays)
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[542] | 335 | {
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[574] | 336 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 337 |
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| 338 | for (it = rays.begin(); it != it_end; ++ it)
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| 339 | {
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| 340 | outRays->push_back(*it);
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| 341 | }
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[573] | 342 | }
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| 343 | else
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| 344 | {
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[639] | 345 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 346 |
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| 347 | for (it = rays.begin(); it != it_end; ++ it)
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| 348 | {
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| 349 | //(*it)->Unref();
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| 350 | if (!(*it)->IsActive())
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| 351 | delete (*it);
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| 352 | }
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[573] | 353 | }
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[639] | 354 |
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[574] | 355 | cout << "finished" << endl;
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[582] | 356 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 357 | }
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[570] | 358 |
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| 359 |
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[573] | 360 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 361 | {
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| 362 | int numSamples = 0;
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| 363 | SimpleRayContainer simpleRays;
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| 364 |
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[574] | 365 | VssRayContainer initialSamples;
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[540] | 366 |
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[574] | 367 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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[712] | 368 |
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[752] | 369 | long startTime = GetTime();
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| 370 |
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[573] | 371 | //-- construction rays => we use uniform samples for this
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[574] | 372 | CastPassSamples(mInitialSamples,
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[660] | 373 | mSamplingType,
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[574] | 374 | initialSamples);
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[573] | 375 |
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[574] | 376 | cout << "finished" << endl;
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| 377 |
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[660] | 378 |
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[573] | 379 | // construct view cells
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[752] | 380 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
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[540] | 381 |
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[727] | 382 | // initial samples count for overall samples ...
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[752] | 383 | numSamples += mInitialSamples;
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[542] | 384 |
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[574] | 385 | // rays can be passed or deleted
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[639] | 386 | disposeRays(initialSamples, outRays);
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[752] | 387 |
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| 388 | cout << "time needed for initial construction: "
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| 389 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 390 |
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| 391 | Debug << "time needed for initial construction: "
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| 392 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 393 |
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| 394 |
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| 395 | // take post processing time
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| 396 | startTime = GetTime();
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| 397 |
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| 398 |
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[720] | 399 | // testing the view cell filter functionality
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| 400 | if (0) TestFilter(preprocessor->mObjects);
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[570] | 401 |
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[660] | 402 | // -- stats after contruction
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| 403 | ResetViewCells();
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| 404 |
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[667] | 405 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
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| 406 |
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[683] | 407 | if (1) // export initial view cells
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[660] | 408 | {
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[712] | 409 | const char filename[] = "view_cells.wrl";
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| 410 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
[660] | 411 |
|
---|
[712] | 412 |
|
---|
[660] | 413 | if (exporter)
|
---|
| 414 | {
|
---|
[712] | 415 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
|
---|
[660] | 416 | if (mExportGeometry)
|
---|
[712] | 417 | {
|
---|
[660] | 418 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 419 | }
|
---|
[660] | 420 |
|
---|
[750] | 421 | exporter->SetWireframe();
|
---|
[660] | 422 | ExportViewCellsForViz(exporter);
|
---|
| 423 |
|
---|
| 424 | delete exporter;
|
---|
[712] | 425 | cout << "finished" << endl;
|
---|
[660] | 426 | }
|
---|
| 427 | }
|
---|
| 428 |
|
---|
[573] | 429 | //-- guided rays are used for further sampling
|
---|
[574] | 430 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[570] | 431 |
|
---|
[666] | 432 | // should we use directional samples?
|
---|
[694] | 433 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 434 |
|
---|
[712] | 435 | // -- the main loop
|
---|
[573] | 436 | while (numSamples < n)
|
---|
| 437 | {
|
---|
[596] | 438 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 439 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 440 |
|
---|
[574] | 441 | VssRayContainer constructionSamples;
|
---|
| 442 |
|
---|
[694] | 443 | const int samplingType = mSamplingType;
|
---|
| 444 | /*dirSamples ?
|
---|
[574] | 445 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
[694] | 446 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
|
---|
[667] | 447 |
|
---|
[720] | 448 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 449 |
|
---|
[727] | 450 | // cast new samples
|
---|
[574] | 451 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 452 | samplingType,
|
---|
[574] | 453 | constructionSamples);
|
---|
| 454 |
|
---|
| 455 | cout << "finished" << endl;
|
---|
| 456 |
|
---|
| 457 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 458 |
|
---|
[727] | 459 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 460 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 461 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 462 |
|
---|
[574] | 463 | cout << "finished" << endl;
|
---|
| 464 |
|
---|
| 465 |
|
---|
[639] | 466 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 467 |
|
---|
| 468 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 469 | }
|
---|
[752] | 470 |
|
---|
[573] | 471 |
|
---|
[570] | 472 |
|
---|
[573] | 473 | //-- post processing
|
---|
| 474 | VssRayContainer postProcessSamples;
|
---|
[570] | 475 |
|
---|
[694] | 476 | //-- construction rays
|
---|
[574] | 477 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 478 | mSamplingType,
|
---|
[574] | 479 | postProcessSamples);
|
---|
[660] | 480 |
|
---|
| 481 |
|
---|
| 482 | // stats before post processing (i.e., merge)
|
---|
| 483 | EvaluateViewCellsStats();
|
---|
| 484 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 485 |
|
---|
| 486 | mRenderer->RenderScene();
|
---|
| 487 | SimulationStatistics ss;
|
---|
| 488 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 489 |
|
---|
| 490 | Debug << ss << endl;
|
---|
| 491 |
|
---|
| 492 |
|
---|
| 493 |
|
---|
[574] | 494 | cout << "starting post processing and visualization" << endl;
|
---|
| 495 |
|
---|
[660] | 496 |
|
---|
[666] | 497 | // store view cells for postprocessing
|
---|
[574] | 498 | const bool storeViewCells = true;
|
---|
[605] | 499 |
|
---|
[660] | 500 |
|
---|
[605] | 501 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 502 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 503 |
|
---|
[720] | 504 | //-- post processing (e.g.,merging) of the view cells
|
---|
[573] | 505 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 506 |
|
---|
[752] | 507 | cout << "time needed for post processing (merge) step: "
|
---|
| 508 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 509 |
|
---|
| 510 | Debug << "time needed for post processing (merge) step: "
|
---|
| 511 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 512 |
|
---|
[720] | 513 | // only for debugging purpose
|
---|
[694] | 514 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
| 515 | CollectEmptyViewCells();
|
---|
[801] | 516 |
|
---|
| 517 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
| 518 | if (mEvaluateViewCells)
|
---|
| 519 | {
|
---|
| 520 | EvalViewCellPartition(preprocessor);
|
---|
| 521 | }
|
---|
| 522 |
|
---|
[574] | 523 | //-- visualization
|
---|
[666] | 524 | if (mShowVisualization)
|
---|
| 525 | {
|
---|
| 526 | VssRayContainer visualizationSamples;
|
---|
[574] | 527 |
|
---|
[666] | 528 | //-- construction rays => we use uniform samples for this
|
---|
| 529 | CastPassSamples(mVisualizationSamples,
|
---|
| 530 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 531 | visualizationSamples);
|
---|
[574] | 532 |
|
---|
[666] | 533 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 534 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 535 |
|
---|
[666] | 536 | // different visualizations
|
---|
| 537 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 538 |
|
---|
[666] | 539 | disposeRays(visualizationSamples, outRays);
|
---|
| 540 | }
|
---|
[574] | 541 |
|
---|
[573] | 542 | return numSamples;
|
---|
[527] | 543 | }
|
---|
| 544 |
|
---|
[547] | 545 |
|
---|
[752] | 546 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 547 | const int nViewCells)
|
---|
[728] | 548 | {
|
---|
| 549 | std::ofstream outstream;
|
---|
| 550 | outstream.open(filename.c_str());
|
---|
| 551 |
|
---|
| 552 | ViewCellContainer viewCells;
|
---|
[735] | 553 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 554 |
|
---|
| 555 | float maxRenderCost, minRenderCost;
|
---|
[734] | 556 |
|
---|
| 557 | // sort by render cost
|
---|
| 558 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 559 |
|
---|
| 560 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 561 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 562 |
|
---|
[736] | 563 | Debug << "histogram minrc: " << minRenderCost << " maxrc: " << maxRenderCost << endl;
|
---|
| 564 |
|
---|
[752] | 565 | const int intervals = min(50, (int)viewCells.size());
|
---|
[735] | 566 |
|
---|
[728] | 567 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 568 | const float stepSize = range / (float)intervals;
|
---|
[728] | 569 |
|
---|
[735] | 570 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 571 |
|
---|
| 572 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 573 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 574 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 575 |
|
---|
[736] | 576 | //float vol = 0;
|
---|
| 577 | //int smallerCost = 0;
|
---|
| 578 | int j = 0;
|
---|
[735] | 579 | int i = 0;
|
---|
| 580 |
|
---|
[734] | 581 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 582 |
|
---|
[744] | 583 | // count for integral
|
---|
| 584 | float volSum = 0;
|
---|
| 585 | int smallerCostSum = 0;
|
---|
[735] | 586 |
|
---|
[734] | 587 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 588 | while (1)
|
---|
| 589 | {
|
---|
[744] | 590 | // count for histogram value
|
---|
| 591 | float volDif = 0;
|
---|
| 592 | int smallerCostDif = 0;
|
---|
[736] | 593 |
|
---|
[734] | 594 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 595 | {
|
---|
[744] | 596 | volSum += viewCells[i]->GetVolume();
|
---|
| 597 | volDif += viewCells[i]->GetVolume();
|
---|
| 598 |
|
---|
[734] | 599 | ++ i;
|
---|
[744] | 600 | ++ smallerCostSum;
|
---|
| 601 | ++ smallerCostDif;
|
---|
[734] | 602 | }
|
---|
[736] | 603 |
|
---|
[744] | 604 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 605 | break;
|
---|
[736] | 606 |
|
---|
[744] | 607 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 608 | const float volRatioSum = volSum / totalVol;
|
---|
| 609 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 610 |
|
---|
[736] | 611 | outstream << "#Pass\n" << j << endl;
|
---|
| 612 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 613 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 614 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 615 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 616 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 617 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 618 |
|
---|
| 619 | // increase current render cost
|
---|
[734] | 620 | currentRenderCost += stepSize;
|
---|
[736] | 621 | ++ j;
|
---|
[734] | 622 | }
|
---|
[735] | 623 |
|
---|
[734] | 624 | outstream.close();
|
---|
| 625 | }
|
---|
| 626 |
|
---|
[735] | 627 |
|
---|
| 628 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 629 | const int nViewCells)
|
---|
[734] | 630 | {
|
---|
| 631 | std::ofstream outstream;
|
---|
| 632 | outstream.open(filename.c_str());
|
---|
| 633 |
|
---|
| 634 | ViewCellContainer viewCells;
|
---|
[735] | 635 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 636 |
|
---|
[735] | 637 | int maxPvsSize, minPvsSize;
|
---|
[734] | 638 |
|
---|
[735] | 639 | // sort by render cost
|
---|
| 640 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 641 |
|
---|
| 642 | minPvsSize = viewCells.front()->GetPvs().GetSize();
|
---|
| 643 | maxPvsSize = viewCells.back()->GetPvs().GetSize();
|
---|
[752] | 644 | minPvsSize = 0;
|
---|
| 645 | maxPvsSize = 1200;
|
---|
[811] | 646 | minPvsSize = 0;
|
---|
| 647 | maxPvsSize = 1200;
|
---|
[752] | 648 |
|
---|
[736] | 649 | Debug << "histogram minpvssize: " << minPvsSize << " maxpvssize: " << maxPvsSize << endl;
|
---|
[735] | 650 |
|
---|
[752] | 651 | const int intervals = min(20, (int)viewCells.size());
|
---|
[735] | 652 | const int range = maxPvsSize - minPvsSize;
|
---|
| 653 | int stepSize = range / intervals;
|
---|
| 654 |
|
---|
[752] | 655 |
|
---|
[735] | 656 | if (!stepSize) stepSize = 1;
|
---|
[752] | 657 | Debug << "stepsize: " << stepSize << endl;
|
---|
| 658 | cout << "stepsize: " << stepSize << endl;
|
---|
[735] | 659 |
|
---|
| 660 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 661 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 662 |
|
---|
| 663 | int currentPvsSize = minPvsSize;//(int)ceil(minRenderCost);
|
---|
| 664 |
|
---|
[736] | 665 | //float vol = 0;
|
---|
[735] | 666 | int i = 0;
|
---|
| 667 | int j = 0;
|
---|
[734] | 668 |
|
---|
[744] | 669 | float volSum = 0;
|
---|
| 670 | int smallerSum = 0;
|
---|
| 671 |
|
---|
[735] | 672 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 673 |
|
---|
[736] | 674 | while (1)
|
---|
[728] | 675 | {
|
---|
[744] | 676 | float volDif = 0;
|
---|
| 677 | int smallerDif = 0;
|
---|
[736] | 678 |
|
---|
[735] | 679 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetPvs().GetSize() < currentPvsSize))
|
---|
| 680 | {
|
---|
[744] | 681 | volDif += viewCells[i]->GetVolume();
|
---|
| 682 | volSum += viewCells[i]->GetVolume();
|
---|
[735] | 683 | ++ i;
|
---|
[744] | 684 | ++ smallerDif;
|
---|
| 685 | ++ smallerSum;
|
---|
[735] | 686 | }
|
---|
[736] | 687 |
|
---|
[744] | 688 | //if (i < (int)viewCells.size())
|
---|
| 689 | // Debug << "new pvs size increase: " << viewCells[i]->GetPvs().GetSize() << " " << currentPvsSize << endl;
|
---|
[728] | 690 |
|
---|
[735] | 691 | if ((i >= (int)viewCells.size()) || (currentPvsSize >= maxPvsSize))
|
---|
| 692 | break;
|
---|
[728] | 693 |
|
---|
[744] | 694 | const float volRatioDif = volDif / totalVol;
|
---|
| 695 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 696 |
|
---|
[735] | 697 | outstream << "#Pass\n" << j ++ << endl;
|
---|
| 698 | outstream << "#Pvs\n" << currentPvsSize << endl;
|
---|
[744] | 699 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 700 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 701 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 702 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[729] | 703 |
|
---|
[735] | 704 | // increase current pvs size
|
---|
| 705 | currentPvsSize += stepSize;
|
---|
[728] | 706 | }
|
---|
[735] | 707 | outstream.close();
|
---|
[728] | 708 | }
|
---|
| 709 |
|
---|
[735] | 710 |
|
---|
[664] | 711 | void ViewCellsManager::EvalViewCellPartition(Preprocessor *preprocessor)
|
---|
[660] | 712 | {
|
---|
| 713 | int samplesPerPass;
|
---|
| 714 | int numSamples;
|
---|
| 715 | int castSamples = 0;
|
---|
| 716 |
|
---|
[664] | 717 | char s[64];
|
---|
| 718 |
|
---|
[660] | 719 | environment->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 720 | environment->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 721 |
|
---|
[664] | 722 | char statsPrefix[100];
|
---|
| 723 | environment->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 724 |
|
---|
[664] | 725 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 726 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 727 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 728 |
|
---|
| 729 | //VssRayContainer outRays;
|
---|
[666] | 730 | // should directional sampling be used?
|
---|
[722] | 731 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 732 |
|
---|
| 733 |
|
---|
[801] | 734 | /*ViewCellContainer leaves;
|
---|
| 735 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 736 | */
|
---|
| 737 | cout << "reseting pvs ... ";
|
---|
| 738 |
|
---|
| 739 |
|
---|
[666] | 740 | bool startFromZero = true;
|
---|
| 741 |
|
---|
| 742 | // reset pvs and start over from zero
|
---|
| 743 | if (startFromZero)
|
---|
| 744 | {
|
---|
| 745 | mViewCellsTree->ResetPvs();
|
---|
| 746 | }
|
---|
| 747 | else // statistics without addidtional samples
|
---|
| 748 | {
|
---|
| 749 | cout << "compute new statistics ... ";
|
---|
| 750 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 751 | string fName = string(statsPrefix) + string(s);
|
---|
| 752 |
|
---|
| 753 | mViewCellsTree->ExportStats(fName);
|
---|
| 754 | cout << "finished" << endl;
|
---|
| 755 | }
|
---|
| 756 |
|
---|
[744] | 757 | cout << "finished" << endl;
|
---|
| 758 |
|
---|
| 759 | cout << "Evaluating view cell partition" << endl;
|
---|
| 760 |
|
---|
[660] | 761 | while (castSamples < numSamples)
|
---|
| 762 | {
|
---|
[664] | 763 | VssRayContainer evaluationSamples;
|
---|
[663] | 764 |
|
---|
[722] | 765 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 766 | /* dirSamples ?
|
---|
[664] | 767 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 768 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 769 | */
|
---|
[664] | 770 | //-- construction rays => we use uniform samples for this
|
---|
[744] | 771 | cout << "casting " << samplesPerPass << " samples " << endl;
|
---|
[664] | 772 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 773 |
|
---|
| 774 | castSamples += samplesPerPass;
|
---|
| 775 |
|
---|
[752] | 776 | cout << "computing sample contributions of " << (int)evaluationSamples.size()
|
---|
| 777 | << " samples " << endl;
|
---|
[664] | 778 |
|
---|
| 779 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 780 |
|
---|
| 781 | cout << "compute new statistics ... ";
|
---|
| 782 |
|
---|
[801] | 783 | /*Debug << "*******+" << endl;
|
---|
| 784 | float overall = 0;
|
---|
| 785 | stable_sort(leaves.begin(), leaves.end(), ViewCell::SmallerPvs);
|
---|
| 786 | for (int i = 0; i < leaves.size(); ++ i)
|
---|
| 787 | {
|
---|
| 788 | overall += leaves[i]->GetPvs().GetSize();
|
---|
| 789 | Debug << "i " << i << " !size: " << leaves[i]->GetPvs().GetSize() << " vol: " << leaves[i]->GetVolume() << " overall " << overall << endl;
|
---|
| 790 |
|
---|
| 791 | }
|
---|
| 792 | */
|
---|
| 793 |
|
---|
| 794 | //-- propagate pvs or pvs size information
|
---|
[752] | 795 | ObjectPvs pvs;
|
---|
| 796 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 797 |
|
---|
| 798 |
|
---|
[801] | 799 | //-- output stats
|
---|
[667] | 800 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 801 | string fileName = string(statsPrefix) + string(s);
|
---|
| 802 |
|
---|
| 803 | mViewCellsTree->ExportStats(fileName);
|
---|
| 804 |
|
---|
| 805 | cout << "finished" << endl;
|
---|
| 806 |
|
---|
| 807 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 808 | }
|
---|
[728] | 809 |
|
---|
[735] | 810 | bool useHisto;
|
---|
| 811 | int histoPasses;
|
---|
[693] | 812 |
|
---|
[735] | 813 | environment->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 814 | environment->GetIntValue("ViewCells.Evaluation.histoPasses", histoPasses);
|
---|
[728] | 815 |
|
---|
[744] | 816 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 817 |
|
---|
[822] | 818 | //Debug << "number of leaves: " << numLeaves << endl;
|
---|
| 819 | //cout << "number of leaves: " << numLeaves << endl;
|
---|
[736] | 820 |
|
---|
[735] | 821 | if (useHisto)
|
---|
[734] | 822 | {
|
---|
[735] | 823 | // evaluate view cells in a histogram
|
---|
| 824 | char s[64];
|
---|
[744] | 825 | #if 0
|
---|
[735] | 826 | for (int passes = 1; passes <= histoPasses; ++ passes)
|
---|
| 827 | {
|
---|
[736] | 828 | int n = numLeaves * passes / histoPasses;
|
---|
[734] | 829 |
|
---|
[735] | 830 | cout << "computing histogram for " << n << " view cells" << endl;
|
---|
| 831 |
|
---|
| 832 | //-- evaluate histogram for render cost
|
---|
| 833 | sprintf(s, "-%09d-histo.log", n);
|
---|
| 834 | string filename = string(statsPrefix) + string(s);
|
---|
| 835 |
|
---|
| 836 | EvalViewCellHistogram(filename, n);
|
---|
| 837 |
|
---|
| 838 | //////////////////////////////////////////
|
---|
| 839 | // --evaluate histogram for pvs size
|
---|
| 840 |
|
---|
| 841 | cout << "computing pvs histogram for " << n << " view cells" << endl;
|
---|
| 842 |
|
---|
| 843 | sprintf(s, "-%09d-histo-pvs.log", n);
|
---|
| 844 | filename = string(statsPrefix) + string(s);
|
---|
| 845 |
|
---|
| 846 | EvalViewCellHistogramForPvsSize(filename, n);
|
---|
| 847 | }
|
---|
[744] | 848 | #else
|
---|
[752] | 849 | for (int pass = histoPasses; pass <= numLeaves; pass += histoPasses)
|
---|
[744] | 850 | {
|
---|
| 851 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 852 |
|
---|
| 853 | //-- evaluate histogram for render cost
|
---|
| 854 | sprintf(s, "-%09d-histo.log", pass);
|
---|
| 855 | string filename = string(statsPrefix) + string(s);
|
---|
| 856 |
|
---|
| 857 | EvalViewCellHistogram(filename, pass);
|
---|
| 858 |
|
---|
| 859 | //////////////////////////////////////////
|
---|
[752] | 860 | //-- evaluate histogram for pvs size
|
---|
[744] | 861 |
|
---|
| 862 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 863 |
|
---|
| 864 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 865 | filename = string(statsPrefix) + string(s);
|
---|
| 866 |
|
---|
| 867 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 868 | }
|
---|
| 869 | #endif
|
---|
[734] | 870 | }
|
---|
| 871 |
|
---|
[693] | 872 | // find empty view cells bug
|
---|
[694] | 873 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
[719] | 874 | {
|
---|
[694] | 875 | TestEmptyViewCells(preprocessor->mObjects);
|
---|
[719] | 876 | }
|
---|
[660] | 877 | }
|
---|
| 878 |
|
---|
[704] | 879 |
|
---|
| 880 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 881 | {
|
---|
[704] | 882 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 883 | }
|
---|
[660] | 884 |
|
---|
[703] | 885 |
|
---|
[728] | 886 | // Returns index of the best view cells of the neighborhood
|
---|
[704] | 887 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 888 | {
|
---|
[705] | 889 | int bestViewCellIdx = 0;
|
---|
[703] | 890 |
|
---|
[704] | 891 | float mergeCost = Limits::Infinity;
|
---|
| 892 | int i = 0;
|
---|
[703] | 893 |
|
---|
[734] | 894 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 895 |
|
---|
[734] | 896 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 897 | {
|
---|
[734] | 898 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 899 |
|
---|
| 900 | if (mc < mergeCost)
|
---|
[704] | 901 | {
|
---|
| 902 | mergeCost = mc;
|
---|
| 903 | bestViewCellIdx = i;
|
---|
[703] | 904 | }
|
---|
[704] | 905 | }
|
---|
[703] | 906 |
|
---|
[704] | 907 | return bestViewCellIdx;
|
---|
| 908 | }
|
---|
[703] | 909 |
|
---|
| 910 |
|
---|
[728] | 911 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 912 | {
|
---|
| 913 | mMaxFilterSize = size;
|
---|
| 914 | }
|
---|
| 915 |
|
---|
| 916 |
|
---|
| 917 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 918 | {
|
---|
| 919 | switch (mRenderCostEvaluationType)
|
---|
| 920 | {
|
---|
| 921 | case PER_OBJECT:
|
---|
[752] | 922 | //cout << "perobject" << endl;
|
---|
| 923 | return 1.0f;
|
---|
[728] | 924 |
|
---|
| 925 | case PER_TRIANGLE:
|
---|
[735] | 926 | {cout << "pertriangle" << endl;
|
---|
[728] | 927 | // HACK
|
---|
| 928 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 929 |
|
---|
| 930 | // HACK: assume meshes are triangles
|
---|
| 931 | if (mi->GetMesh())
|
---|
| 932 | {
|
---|
| 933 | return mi->GetMesh()->mFaces.size();
|
---|
| 934 | }
|
---|
| 935 | }
|
---|
| 936 | default:
|
---|
[752] | 937 | cout << "default" << endl;
|
---|
| 938 | return 1.0f;
|
---|
[728] | 939 | }
|
---|
| 940 |
|
---|
| 941 | // should not come here
|
---|
[752] | 942 | return 0.0f;
|
---|
[728] | 943 | }
|
---|
| 944 |
|
---|
| 945 |
|
---|
[704] | 946 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 947 | const ViewCellContainer &viewCells)
|
---|
| 948 | {
|
---|
| 949 | ViewCell *root = currentViewCell;
|
---|
| 950 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 951 |
|
---|
[704] | 952 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 953 |
|
---|
[704] | 954 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 955 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 956 |
|
---|
[705] | 957 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 958 | //const float maxAvgCost = 350;
|
---|
| 959 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 960 | {
|
---|
[704] | 961 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 962 |
|
---|
[704] | 963 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 964 |
|
---|
[704] | 965 | // remove from vector
|
---|
| 966 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 967 | neighborhood.pop_back();
|
---|
[705] | 968 |
|
---|
[713] | 969 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 970 | if (!bestViewCell || !root)
|
---|
| 971 | cout << "warning!!" << endl;
|
---|
[705] | 972 |
|
---|
[704] | 973 | // create new root of the hierarchy
|
---|
| 974 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 975 | }
|
---|
| 976 |
|
---|
[704] | 977 | return root;
|
---|
[703] | 978 | }
|
---|
| 979 |
|
---|
[704] | 980 |
|
---|
[713] | 981 | struct SortableViewCellEntry {
|
---|
| 982 |
|
---|
| 983 | SortableViewCellEntry() {}
|
---|
| 984 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
| 985 |
|
---|
| 986 | float mValue;
|
---|
| 987 | ViewCell *mViewCell;
|
---|
| 988 |
|
---|
| 989 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 990 | return a.mValue < b.mValue;
|
---|
| 991 | }
|
---|
| 992 | };
|
---|
| 993 |
|
---|
| 994 | ViewCell *
|
---|
| 995 | ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 996 | const ViewCellContainer &viewCells)
|
---|
| 997 | {
|
---|
| 998 |
|
---|
| 999 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1000 | int i, j;
|
---|
| 1001 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1002 | if (viewCells[i] != currentViewCell)
|
---|
| 1003 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1004 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1005 | viewCells[i]);
|
---|
| 1006 | }
|
---|
| 1007 | neighborhood.resize(j);
|
---|
| 1008 |
|
---|
| 1009 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1010 |
|
---|
| 1011 | ViewCell *root = currentViewCell;
|
---|
| 1012 |
|
---|
| 1013 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1014 |
|
---|
| 1015 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1016 | //-- use priority queue to merge leaf pairs
|
---|
| 1017 |
|
---|
| 1018 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1019 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1020 | {
|
---|
[713] | 1021 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1022 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1023 | // create new root of the hierarchy
|
---|
| 1024 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1025 | // set negative cost so that this view cell gets deleted
|
---|
| 1026 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1027 | }
|
---|
[713] | 1028 |
|
---|
| 1029 | return root;
|
---|
| 1030 | }
|
---|
| 1031 |
|
---|
| 1032 | void
|
---|
| 1033 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1034 | ) const
|
---|
| 1035 | {
|
---|
| 1036 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 1037 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1038 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1039 |
|
---|
| 1040 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1041 | DeleteLocalMergeTree(*it);
|
---|
| 1042 | vci->mChildren.clear();
|
---|
| 1043 | delete vci;
|
---|
| 1044 | }
|
---|
| 1045 | }
|
---|
| 1046 |
|
---|
[564] | 1047 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1048 | int minPvsSize,
|
---|
[562] | 1049 | int maxPvsSize) const
|
---|
[547] | 1050 | {
|
---|
[569] | 1051 |
|
---|
[710] | 1052 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
|
---|
| 1053 | (vc->GetPvs().GetSize() < minPvsSize))
|
---|
[564] | 1054 | {
|
---|
[710] | 1055 | return false;
|
---|
[561] | 1056 | }
|
---|
[570] | 1057 |
|
---|
[710] | 1058 | return true;
|
---|
[547] | 1059 | }
|
---|
| 1060 |
|
---|
| 1061 |
|
---|
[710] | 1062 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
| 1063 | {
|
---|
| 1064 | return false;
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
| 1067 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1068 | ViewCellContainer &viewCells) const
|
---|
| 1069 | {
|
---|
| 1070 | return 0;
|
---|
| 1071 | };
|
---|
| 1072 |
|
---|
[697] | 1073 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1074 | const float width) const
|
---|
| 1075 | {
|
---|
[746] | 1076 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1077 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1078 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1079 |
|
---|
| 1080 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1081 | }
|
---|
| 1082 |
|
---|
| 1083 |
|
---|
| 1084 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint, PrVs &prvs)
|
---|
| 1085 | {
|
---|
[746] | 1086 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
| 1087 |
|
---|
| 1088 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1089 |
|
---|
[746] | 1090 | if (currentViewCell) {
|
---|
[697] | 1091 | ViewCellContainer viewCells;
|
---|
| 1092 | ComputeBoxIntersections(box, viewCells);
|
---|
[746] | 1093 |
|
---|
[713] | 1094 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1095 | prvs.mViewCell = root;
|
---|
[746] | 1096 | } else
|
---|
| 1097 | prvs.mViewCell = NULL;
|
---|
| 1098 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1099 | }
|
---|
| 1100 |
|
---|
| 1101 |
|
---|
[581] | 1102 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1103 | {
|
---|
| 1104 | return mViewCellsTree->GetRoot();
|
---|
| 1105 | }
|
---|
| 1106 |
|
---|
| 1107 |
|
---|
[564] | 1108 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1109 | int minPvs,
|
---|
[562] | 1110 | int maxPvs) const
|
---|
| 1111 | {
|
---|
| 1112 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1113 | }
|
---|
| 1114 |
|
---|
[577] | 1115 |
|
---|
[569] | 1116 | void
|
---|
| 1117 | ViewCellsManager::SetValidity(
|
---|
[570] | 1118 | int minPvsSize,
|
---|
[569] | 1119 | int maxPvsSize) const
|
---|
| 1120 | {
|
---|
| 1121 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1122 |
|
---|
[569] | 1123 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
| 1124 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1125 | }
|
---|
| 1126 | }
|
---|
[562] | 1127 |
|
---|
[569] | 1128 | void
|
---|
| 1129 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1130 | const float minValid,
|
---|
| 1131 | const float maxValid
|
---|
| 1132 | )
|
---|
| 1133 | {
|
---|
| 1134 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1135 |
|
---|
[569] | 1136 | int start = mViewCells.size()*minValid;
|
---|
| 1137 | int end = mViewCells.size()*maxValid;
|
---|
[570] | 1138 |
|
---|
[569] | 1139 | for (int i=0; i < mViewCells.size(); i++)
|
---|
| 1140 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1141 | }
|
---|
| 1142 |
|
---|
| 1143 | int
|
---|
| 1144 | ViewCellsManager::CountValidViewcells() const
|
---|
| 1145 | {
|
---|
| 1146 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1147 | int valid = 0;
|
---|
| 1148 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
| 1149 | if ((*it)->GetValid())
|
---|
[706] | 1150 | valid ++;
|
---|
[569] | 1151 | }
|
---|
| 1152 | return valid;
|
---|
| 1153 | }
|
---|
| 1154 |
|
---|
[577] | 1155 |
|
---|
| 1156 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1157 | {
|
---|
| 1158 | X3dParser parser;
|
---|
[503] | 1159 |
|
---|
[440] | 1160 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1161 |
|
---|
[440] | 1162 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1163 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1164 |
|
---|
| 1165 | return success;
|
---|
| 1166 | }
|
---|
| 1167 |
|
---|
[485] | 1168 |
|
---|
[487] | 1169 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1170 | {
|
---|
[542] | 1171 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1172 |
|
---|
| 1173 | return true;
|
---|
| 1174 | }
|
---|
| 1175 |
|
---|
| 1176 |
|
---|
[557] | 1177 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1178 | {
|
---|
[610] | 1179 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1180 | }
|
---|
| 1181 |
|
---|
| 1182 |
|
---|
[490] | 1183 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1184 | {
|
---|
[569] | 1185 | if (!ViewCellsConstructed())
|
---|
[837] | 1186 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1187 | else
|
---|
| 1188 | {
|
---|
| 1189 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1190 | return false;
|
---|
| 1191 |
|
---|
| 1192 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1193 |
|
---|
| 1194 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1195 | return false;
|
---|
[569] | 1196 | }
|
---|
[837] | 1197 |
|
---|
[569] | 1198 | return true;
|
---|
[490] | 1199 | }
|
---|
| 1200 |
|
---|
[501] | 1201 |
|
---|
[563] | 1202 | float
|
---|
| 1203 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[574] | 1204 | const bool addRays,
|
---|
| 1205 | const bool storeViewCells
|
---|
[563] | 1206 | )
|
---|
[440] | 1207 | {
|
---|
[563] | 1208 | // view cells not yet constructed
|
---|
| 1209 | if (!ViewCellsConstructed())
|
---|
| 1210 | return 0.0f;
|
---|
[564] | 1211 |
|
---|
[563] | 1212 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 1213 |
|
---|
[563] | 1214 | float sum = 0.0f;
|
---|
[664] | 1215 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1216 | {
|
---|
| 1217 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
|
---|
| 1218 | //ComputeSampleContributions(*(*it), addRays);
|
---|
| 1219 | // sum += (*it)->mPvsContribution;
|
---|
[563] | 1220 | }
|
---|
[664] | 1221 |
|
---|
[563] | 1222 | return sum;
|
---|
[440] | 1223 | }
|
---|
| 1224 |
|
---|
[485] | 1225 |
|
---|
[479] | 1226 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1227 | {
|
---|
[660] | 1228 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1229 |
|
---|
| 1230 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1231 |
|
---|
| 1232 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1233 | {
|
---|
[660] | 1234 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1235 | }
|
---|
[479] | 1236 | }
|
---|
| 1237 |
|
---|
[485] | 1238 |
|
---|
[580] | 1239 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1240 | float &expectedRenderCost,
|
---|
[580] | 1241 | float &deviation,
|
---|
| 1242 | float &variance,
|
---|
| 1243 | int &totalPvs,
|
---|
| 1244 | float &avgRenderCost)
|
---|
[579] | 1245 | {
|
---|
| 1246 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1247 |
|
---|
[580] | 1248 |
|
---|
[579] | 1249 | //-- compute expected value
|
---|
| 1250 |
|
---|
| 1251 | totalRenderCost = 0;
|
---|
[580] | 1252 | totalPvs = 0;
|
---|
[579] | 1253 |
|
---|
| 1254 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1255 | {
|
---|
| 1256 | ViewCell *vc = *it;
|
---|
| 1257 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1258 | totalPvs += (int)vc->GetPvs().GetSize();
|
---|
[579] | 1259 | }
|
---|
| 1260 |
|
---|
[580] | 1261 | // normalize with view space box
|
---|
| 1262 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1263 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1264 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1265 |
|
---|
| 1266 |
|
---|
[580] | 1267 | //-- compute standard defiation
|
---|
[579] | 1268 | variance = 0;
|
---|
[580] | 1269 | deviation = 0;
|
---|
[579] | 1270 |
|
---|
| 1271 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1272 | {
|
---|
| 1273 | ViewCell *vc = *it;
|
---|
| 1274 |
|
---|
| 1275 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1276 | float dev;
|
---|
[579] | 1277 |
|
---|
[580] | 1278 | if (1)
|
---|
| 1279 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
| 1280 | else
|
---|
| 1281 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1282 |
|
---|
[580] | 1283 | deviation += dev;
|
---|
| 1284 | variance += dev * dev;
|
---|
[579] | 1285 | }
|
---|
[580] | 1286 |
|
---|
[579] | 1287 | variance /= (float)mViewCells.size();
|
---|
[580] | 1288 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1289 | }
|
---|
| 1290 |
|
---|
| 1291 |
|
---|
| 1292 |
|
---|
[440] | 1293 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1294 | {
|
---|
| 1295 | mViewCells.push_back(viewCell);
|
---|
| 1296 | }
|
---|
| 1297 |
|
---|
[485] | 1298 |
|
---|
[478] | 1299 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1300 | {
|
---|
| 1301 | return viewCell->GetArea();
|
---|
| 1302 | }
|
---|
| 1303 |
|
---|
| 1304 |
|
---|
| 1305 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1306 | {
|
---|
| 1307 | return viewCell->GetVolume();
|
---|
| 1308 | }
|
---|
| 1309 |
|
---|
[485] | 1310 |
|
---|
[503] | 1311 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
| 1312 | ViewCellContainer &viewCells,
|
---|
[440] | 1313 | const int maxViewCells) const
|
---|
| 1314 | {
|
---|
| 1315 | // maximal max viewcells
|
---|
[503] | 1316 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1317 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1318 |
|
---|
| 1319 | for (int i = 0; i < limit; ++ i)
|
---|
| 1320 | {
|
---|
| 1321 | Intersectable *object = objects[i];
|
---|
[503] | 1322 |
|
---|
[440] | 1323 | // extract the mesh instances
|
---|
| 1324 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1325 | {
|
---|
| 1326 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1327 |
|
---|
| 1328 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1329 | viewCells.push_back(viewCell);
|
---|
| 1330 | }
|
---|
| 1331 | //TODO: transformed meshes
|
---|
| 1332 | }
|
---|
| 1333 | }
|
---|
| 1334 |
|
---|
[485] | 1335 |
|
---|
[503] | 1336 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1337 | const float height) const
|
---|
| 1338 | {
|
---|
| 1339 | // one mesh per view cell
|
---|
| 1340 | Mesh *mesh = new Mesh();
|
---|
[503] | 1341 |
|
---|
[440] | 1342 | //-- construct prism
|
---|
| 1343 |
|
---|
[503] | 1344 | // bottom
|
---|
[440] | 1345 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1346 | // top
|
---|
| 1347 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1348 | // sides
|
---|
| 1349 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1350 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1351 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1352 |
|
---|
| 1353 | //--- extrude new vertices for top of prism
|
---|
| 1354 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1355 |
|
---|
[503] | 1356 | Triangle3 topTri;
|
---|
[440] | 1357 |
|
---|
| 1358 | // add base vertices and calculate top vertices
|
---|
| 1359 | for (int i = 0; i < 3; ++ i)
|
---|
| 1360 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1361 |
|
---|
| 1362 | // add top vertices
|
---|
[440] | 1363 | for (int i = 0; i < 3; ++ i)
|
---|
| 1364 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1365 |
|
---|
[440] | 1366 | mesh->Preprocess();
|
---|
| 1367 |
|
---|
| 1368 | return GenerateViewCell(mesh);
|
---|
| 1369 | }
|
---|
| 1370 |
|
---|
[485] | 1371 |
|
---|
[551] | 1372 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1373 | {
|
---|
| 1374 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1375 |
|
---|
| 1376 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1377 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1378 | {
|
---|
| 1379 | Finalize(*it, createMesh);
|
---|
| 1380 | }
|
---|
[555] | 1381 |
|
---|
| 1382 | mTotalAreaValid = false;
|
---|
[551] | 1383 | }
|
---|
| 1384 |
|
---|
| 1385 |
|
---|
| 1386 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1387 | {
|
---|
| 1388 | // implemented in subclasses
|
---|
| 1389 | }
|
---|
| 1390 |
|
---|
[752] | 1391 | // fast way of merging 2 view cells
|
---|
[582] | 1392 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1393 | {
|
---|
[580] | 1394 | // generate parent view cell
|
---|
[752] | 1395 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1396 |
|
---|
[752] | 1397 | vc->GetPvs().Clear();
|
---|
[610] | 1398 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1399 |
|
---|
| 1400 | // merge pvs of right cell
|
---|
[610] | 1401 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1402 |
|
---|
[462] | 1403 | //-- merge ray sets
|
---|
[564] | 1404 | if (0)
|
---|
| 1405 | {
|
---|
[582] | 1406 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1407 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1408 |
|
---|
[582] | 1409 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1410 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1411 | vc->mPiercingRays.begin());
|
---|
| 1412 | }
|
---|
[440] | 1413 |
|
---|
[710] | 1414 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1415 | vc->mChildren.push_back(left);
|
---|
| 1416 | vc->mChildren.push_back(right);
|
---|
| 1417 |
|
---|
[752] | 1418 | // update pvs size
|
---|
| 1419 | vc->mPvsSize = vc->GetPvs().GetSize();
|
---|
| 1420 | vc->mPvsSizeValid = true;
|
---|
| 1421 |
|
---|
[440] | 1422 | return vc;
|
---|
| 1423 | }
|
---|
| 1424 |
|
---|
[485] | 1425 |
|
---|
[582] | 1426 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1427 | {
|
---|
[752] | 1428 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1429 |
|
---|
| 1430 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1431 |
|
---|
| 1432 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1433 | {
|
---|
| 1434 | // merge pvs
|
---|
[610] | 1435 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1436 | vc->mChildren.push_back(*it);
|
---|
[582] | 1437 | }
|
---|
| 1438 |
|
---|
| 1439 | return vc;
|
---|
| 1440 | }
|
---|
| 1441 |
|
---|
| 1442 |
|
---|
[480] | 1443 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1444 | {
|
---|
| 1445 | mRenderer = renderer;
|
---|
| 1446 | }
|
---|
[441] | 1447 |
|
---|
[485] | 1448 |
|
---|
[580] | 1449 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1450 | {
|
---|
[580] | 1451 | return mViewCellsTree;
|
---|
[440] | 1452 | }
|
---|
| 1453 |
|
---|
| 1454 |
|
---|
| 1455 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1456 | {
|
---|
[444] | 1457 | mVisualizationSamples = visSamples;
|
---|
[440] | 1458 | }
|
---|
| 1459 |
|
---|
[485] | 1460 |
|
---|
[440] | 1461 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1462 | {
|
---|
| 1463 | mConstructionSamples = constructionSamples;
|
---|
| 1464 | }
|
---|
| 1465 |
|
---|
[485] | 1466 |
|
---|
[574] | 1467 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1468 | {
|
---|
| 1469 | mInitialSamples = initialSamples;
|
---|
| 1470 | }
|
---|
| 1471 |
|
---|
| 1472 |
|
---|
[440] | 1473 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1474 | {
|
---|
| 1475 | mPostProcessSamples = postProcessSamples;
|
---|
| 1476 | }
|
---|
| 1477 |
|
---|
[485] | 1478 |
|
---|
[440] | 1479 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1480 | {
|
---|
| 1481 | return mVisualizationSamples;
|
---|
| 1482 | }
|
---|
| 1483 |
|
---|
[485] | 1484 |
|
---|
[440] | 1485 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1486 | {
|
---|
| 1487 | return mConstructionSamples;
|
---|
| 1488 | }
|
---|
| 1489 |
|
---|
[485] | 1490 |
|
---|
[440] | 1491 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1492 | {
|
---|
| 1493 | return mPostProcessSamples;
|
---|
| 1494 | }
|
---|
| 1495 |
|
---|
[485] | 1496 |
|
---|
[719] | 1497 | void ViewCellsManager::UpdatePvs()
|
---|
| 1498 | {
|
---|
[720] | 1499 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1500 | return;
|
---|
| 1501 |
|
---|
| 1502 | mViewCellPvsIsUpdated = true;
|
---|
| 1503 |
|
---|
| 1504 | ViewCellContainer leaves;
|
---|
| 1505 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1506 |
|
---|
| 1507 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1508 |
|
---|
| 1509 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1510 | {
|
---|
| 1511 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1512 | }
|
---|
| 1513 | }
|
---|
| 1514 |
|
---|
| 1515 |
|
---|
[485] | 1516 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1517 | {
|
---|
[719] | 1518 | // update pvs of view cells tree if necessary
|
---|
| 1519 | UpdatePvs();
|
---|
[467] | 1520 |
|
---|
[719] | 1521 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1522 |
|
---|
| 1523 | stat.viewcells = 0;
|
---|
| 1524 | stat.minPvs = 100000000;
|
---|
| 1525 | stat.maxPvs = 0;
|
---|
| 1526 | stat.avgPvs = 0.0f;
|
---|
| 1527 |
|
---|
| 1528 | for (; it != mViewCells.end(); ++ it)
|
---|
| 1529 | {
|
---|
| 1530 | ViewCell *viewcell = *it;
|
---|
| 1531 |
|
---|
| 1532 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
| 1533 |
|
---|
| 1534 | if (pvsSize < stat.minPvs)
|
---|
| 1535 | stat.minPvs = pvsSize;
|
---|
| 1536 | if (pvsSize > stat.maxPvs)
|
---|
| 1537 | stat.maxPvs = pvsSize;
|
---|
| 1538 | stat.avgPvs += pvsSize;
|
---|
| 1539 |
|
---|
| 1540 | ++ stat.viewcells;
|
---|
| 1541 | }
|
---|
| 1542 |
|
---|
| 1543 | if (stat.viewcells)
|
---|
| 1544 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1545 | }
|
---|
| 1546 |
|
---|
[485] | 1547 |
|
---|
[480] | 1548 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1549 | {
|
---|
| 1550 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1551 | PvsStatistics pvsStat;
|
---|
| 1552 | GetPvsStatistics(pvsStat);
|
---|
| 1553 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1554 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1555 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1556 | }
|
---|
| 1557 |
|
---|
[485] | 1558 |
|
---|
[532] | 1559 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1560 | {
|
---|
| 1561 | return 0;
|
---|
| 1562 | }
|
---|
| 1563 |
|
---|
[547] | 1564 |
|
---|
[468] | 1565 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1566 | {
|
---|
| 1567 | return mViewCells;
|
---|
| 1568 | }
|
---|
| 1569 |
|
---|
[485] | 1570 |
|
---|
[487] | 1571 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1572 | {
|
---|
[542] | 1573 | mViewSpaceBox = box;
|
---|
[591] | 1574 |
|
---|
[660] | 1575 | CreateClipPlane();
|
---|
[591] | 1576 |
|
---|
[577] | 1577 | mTotalAreaValid = false;
|
---|
[487] | 1578 | }
|
---|
| 1579 |
|
---|
| 1580 |
|
---|
[660] | 1581 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1582 | {
|
---|
| 1583 | int axis = 0;
|
---|
[667] | 1584 | float pos;
|
---|
[591] | 1585 |
|
---|
[667] | 1586 | environment->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1587 |
|
---|
[667] | 1588 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1589 |
|
---|
[660] | 1590 | if (mUseClipPlaneForViz)
|
---|
| 1591 | environment->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1592 |
|
---|
| 1593 | Vector3 normal(0,0,0);
|
---|
| 1594 | normal[axis] = 1;
|
---|
| 1595 |
|
---|
[660] | 1596 | mClipPlane = Plane3(normal, point);
|
---|
[591] | 1597 | }
|
---|
| 1598 |
|
---|
| 1599 |
|
---|
[519] | 1600 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1601 | {
|
---|
[542] | 1602 | return mViewSpaceBox;
|
---|
[519] | 1603 | }
|
---|
| 1604 |
|
---|
| 1605 |
|
---|
[480] | 1606 | void ViewCellsManager::ResetViewCells()
|
---|
| 1607 | {
|
---|
[720] | 1608 | // recollect view cells
|
---|
[480] | 1609 | mViewCells.clear();
|
---|
| 1610 | CollectViewCells();
|
---|
[590] | 1611 |
|
---|
[720] | 1612 |
|
---|
| 1613 | // stats are computed once more
|
---|
[660] | 1614 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1615 | EvaluateViewCellsStats();
|
---|
[590] | 1616 |
|
---|
[520] | 1617 | // has to be recomputed
|
---|
[480] | 1618 | mTotalAreaValid = false;
|
---|
| 1619 | }
|
---|
| 1620 |
|
---|
[485] | 1621 |
|
---|
[547] | 1622 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1623 | {
|
---|
| 1624 | return mMaxPvsSize;
|
---|
| 1625 | }
|
---|
| 1626 |
|
---|
[590] | 1627 |
|
---|
[563] | 1628 | void
|
---|
| 1629 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1630 | {
|
---|
| 1631 | if (!ViewCellsConstructed())
|
---|
| 1632 | return;
|
---|
[564] | 1633 |
|
---|
[563] | 1634 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1635 |
|
---|
[563] | 1636 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1637 | AddSampleContributions(*(*it));
|
---|
| 1638 | }
|
---|
| 1639 | }
|
---|
[547] | 1640 |
|
---|
[581] | 1641 |
|
---|
[562] | 1642 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1643 | {
|
---|
| 1644 | return mMinPvsSize;
|
---|
| 1645 | }
|
---|
| 1646 |
|
---|
| 1647 |
|
---|
| 1648 |
|
---|
[561] | 1649 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1650 | {
|
---|
| 1651 | return mMaxPvsRatio;
|
---|
| 1652 | }
|
---|
| 1653 |
|
---|
| 1654 |
|
---|
[563] | 1655 | void
|
---|
| 1656 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1657 | {
|
---|
[563] | 1658 | // assumes viewcells have been stored...
|
---|
| 1659 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1660 | ViewCellContainer::const_iterator it;
|
---|
| 1661 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1662 | ViewCell *viewcell = *it;
|
---|
[569] | 1663 | if (viewcell->GetValid()) {
|
---|
| 1664 | // if ray not outside of view space
|
---|
| 1665 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1666 | }
|
---|
[563] | 1667 | }
|
---|
| 1668 | }
|
---|
[503] | 1669 |
|
---|
[574] | 1670 |
|
---|
[570] | 1671 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
[574] | 1672 | const bool addRays,
|
---|
| 1673 | const bool storeViewCells)
|
---|
[563] | 1674 | {
|
---|
[570] | 1675 | ViewCellContainer viewcells;
|
---|
[564] | 1676 |
|
---|
[570] | 1677 | ray.mPvsContribution = 0;
|
---|
| 1678 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1679 |
|
---|
[570] | 1680 | static Ray hray;
|
---|
[564] | 1681 | hray.Init(ray);
|
---|
| 1682 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1683 | //Ray hray(ray);
|
---|
| 1684 |
|
---|
| 1685 | float tmin = 0, tmax = 1.0;
|
---|
| 1686 |
|
---|
| 1687 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1688 | return 0;
|
---|
[564] | 1689 |
|
---|
| 1690 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1691 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1692 |
|
---|
| 1693 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1694 |
|
---|
[570] | 1695 | // copy viewcells memory efficiently
|
---|
[574] | 1696 | //const bool storeViewcells = !addRays;
|
---|
[564] | 1697 |
|
---|
[574] | 1698 | if (storeViewCells)
|
---|
[570] | 1699 | {
|
---|
| 1700 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1701 | ray.mViewCells = viewcells;
|
---|
| 1702 | }
|
---|
[564] | 1703 |
|
---|
[570] | 1704 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1705 |
|
---|
[664] | 1706 | for (; it != viewcells.end(); ++ it)
|
---|
| 1707 | {
|
---|
| 1708 | ViewCell *viewcell = *it;
|
---|
[694] | 1709 |
|
---|
[708] | 1710 | if (viewcell->GetValid())
|
---|
[664] | 1711 | {
|
---|
| 1712 | // if ray not outside of view space
|
---|
| 1713 | float contribution;
|
---|
[666] | 1714 | if (ray.mTerminationObject &&
|
---|
| 1715 | viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
[664] | 1716 | ray.mPdf,
|
---|
| 1717 | contribution))
|
---|
| 1718 | {
|
---|
| 1719 | ++ ray.mPvsContribution;
|
---|
| 1720 | ray.mRelativePvsContribution += contribution;
|
---|
| 1721 | }
|
---|
[718] | 1722 |
|
---|
[840] | 1723 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1724 | // made in one direction!!!
|
---|
| 1725 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
| 1726 | #if 0
|
---|
[666] | 1727 | if (ray.mOriginObject &&
|
---|
| 1728 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1729 | ray.mPdf,
|
---|
| 1730 | contribution))
|
---|
| 1731 | {
|
---|
| 1732 | ++ ray.mPvsContribution;
|
---|
| 1733 | ray.mRelativePvsContribution += contribution;
|
---|
| 1734 | }
|
---|
[718] | 1735 | #endif
|
---|
[664] | 1736 | }
|
---|
[569] | 1737 | }
|
---|
[564] | 1738 |
|
---|
[664] | 1739 |
|
---|
| 1740 | if (addRays)
|
---|
| 1741 | {
|
---|
| 1742 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1743 | {
|
---|
| 1744 | ViewCell *viewcell = *it;
|
---|
| 1745 |
|
---|
[706] | 1746 | if (viewcell->GetValid())
|
---|
[664] | 1747 | {
|
---|
| 1748 | // if ray not outside of view space
|
---|
[666] | 1749 | if (ray.mTerminationObject)
|
---|
| 1750 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
[718] | 1751 |
|
---|
| 1752 | #if 0
|
---|
[666] | 1753 | if (ray.mOriginObject)
|
---|
| 1754 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[718] | 1755 | #endif
|
---|
[664] | 1756 | }
|
---|
| 1757 | }
|
---|
[563] | 1758 | }
|
---|
[570] | 1759 |
|
---|
| 1760 | return ray.mRelativePvsContribution;
|
---|
[468] | 1761 | }
|
---|
| 1762 |
|
---|
| 1763 |
|
---|
[469] | 1764 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1765 | const int maxSize,
|
---|
[503] | 1766 | VssRayContainer &usedRays,
|
---|
[485] | 1767 | VssRayContainer *savedRays) const
|
---|
[469] | 1768 | {
|
---|
[485] | 1769 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1770 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1771 |
|
---|
[485] | 1772 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1773 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1774 | {
|
---|
[473] | 1775 | if (Random(1.0f) < prop)
|
---|
[485] | 1776 | usedRays.push_back(*it);
|
---|
| 1777 | else if (savedRays)
|
---|
| 1778 | savedRays->push_back(*it);
|
---|
[469] | 1779 | }
|
---|
| 1780 | }
|
---|
| 1781 |
|
---|
[477] | 1782 |
|
---|
[728] | 1783 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1784 | {
|
---|
[728] | 1785 | return mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1786 | }
|
---|
| 1787 |
|
---|
| 1788 |
|
---|
[477] | 1789 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1790 | {
|
---|
| 1791 | // if already computed
|
---|
| 1792 | if (mTotalAreaValid)
|
---|
[728] | 1793 | {
|
---|
[470] | 1794 | return mTotalArea;
|
---|
[728] | 1795 | }
|
---|
[470] | 1796 |
|
---|
| 1797 | mTotalArea = 0;
|
---|
| 1798 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1799 |
|
---|
| 1800 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1801 | {
|
---|
| 1802 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1803 | mTotalArea += GetArea(*it);
|
---|
[480] | 1804 | }
|
---|
| 1805 |
|
---|
[470] | 1806 | mTotalAreaValid = true;
|
---|
| 1807 |
|
---|
| 1808 | return mTotalArea;
|
---|
| 1809 | }
|
---|
| 1810 |
|
---|
[482] | 1811 |
|
---|
[475] | 1812 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1813 | {
|
---|
[660] | 1814 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1815 | }
|
---|
| 1816 |
|
---|
[477] | 1817 |
|
---|
[508] | 1818 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 1819 | {
|
---|
[651] | 1820 | if (ViewCellsTreeConstructed())
|
---|
| 1821 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 1822 | else
|
---|
| 1823 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 1824 | mViewCells[i]->SetId(i);
|
---|
[508] | 1825 | }
|
---|
| 1826 |
|
---|
| 1827 |
|
---|
| 1828 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 1829 | {
|
---|
[482] | 1830 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1831 |
|
---|
| 1832 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1833 | {
|
---|
[574] | 1834 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 1835 | {
|
---|
[801] | 1836 | ExportColor(exporter, *it);
|
---|
| 1837 |
|
---|
[591] | 1838 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 1839 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 1840 | }
|
---|
[482] | 1841 | }
|
---|
| 1842 | }
|
---|
| 1843 |
|
---|
| 1844 |
|
---|
[517] | 1845 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 1846 | {
|
---|
| 1847 | // convert to meshes
|
---|
| 1848 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1849 |
|
---|
| 1850 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1851 | {
|
---|
[517] | 1852 | if (!(*it)->GetMesh())
|
---|
| 1853 | CreateMesh(*it);
|
---|
[503] | 1854 | }
|
---|
| 1855 | }
|
---|
| 1856 |
|
---|
[508] | 1857 |
|
---|
[871] | 1858 | bool ViewCellsManager::ExportViewCells(const string filename, const bool exportPvs)
|
---|
[564] | 1859 | {
|
---|
[508] | 1860 | return false;
|
---|
| 1861 | }
|
---|
| 1862 |
|
---|
| 1863 |
|
---|
[610] | 1864 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 1865 | {
|
---|
[610] | 1866 | mNumActiveViewCells = n;
|
---|
| 1867 | mViewCells.clear();
|
---|
| 1868 | CollectViewCells();
|
---|
| 1869 | }
|
---|
[508] | 1870 |
|
---|
| 1871 |
|
---|
[660] | 1872 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 1873 | {
|
---|
[882] | 1874 | // collect leaf view cells and set the pointers to the currently
|
---|
| 1875 | // active view cells
|
---|
[660] | 1876 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1877 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1878 | {
|
---|
[881] | 1879 | ViewCellContainer leaves;
|
---|
| 1880 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 1881 |
|
---|
| 1882 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 1883 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 1884 | {
|
---|
| 1885 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 1886 | }
|
---|
[660] | 1887 | }
|
---|
| 1888 | }
|
---|
[508] | 1889 |
|
---|
[840] | 1890 |
|
---|
| 1891 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 1892 | {
|
---|
| 1893 | return mMaxFilterSize;
|
---|
| 1894 | }
|
---|
| 1895 |
|
---|
| 1896 | static const bool USE_ASCII = true;
|
---|
| 1897 |
|
---|
| 1898 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 1899 | const ObjectContainer &objects) const
|
---|
| 1900 | {
|
---|
| 1901 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 1902 |
|
---|
| 1903 | if (USE_ASCII)
|
---|
| 1904 | {
|
---|
| 1905 | ofstream boxesOut(filename.c_str());
|
---|
| 1906 | if (!boxesOut.is_open())
|
---|
| 1907 | return false;
|
---|
| 1908 |
|
---|
| 1909 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 1910 | {
|
---|
| 1911 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 1912 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 1913 |
|
---|
| 1914 | boxesOut << mi->GetId() << " "
|
---|
| 1915 | << box.Min().x << " "
|
---|
| 1916 | << box.Min().y << " "
|
---|
| 1917 | << box.Min().z << " "
|
---|
| 1918 | << box.Max().x << " "
|
---|
| 1919 | << box.Max().y << " "
|
---|
| 1920 | << box.Max().z << endl;
|
---|
| 1921 | }
|
---|
| 1922 |
|
---|
| 1923 | boxesOut.close();
|
---|
| 1924 | }
|
---|
| 1925 | else
|
---|
| 1926 | {
|
---|
| 1927 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 1928 |
|
---|
| 1929 | if (!boxesOut.is_open())
|
---|
| 1930 | return false;
|
---|
| 1931 |
|
---|
| 1932 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 1933 | {
|
---|
| 1934 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 1935 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 1936 | Vector3 bmin = box.Min();
|
---|
| 1937 | Vector3 bmax = box.Max();
|
---|
[850] | 1938 | int id = mi->GetId();
|
---|
[840] | 1939 |
|
---|
[850] | 1940 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 1941 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 1942 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 1943 | }
|
---|
| 1944 |
|
---|
| 1945 | boxesOut.close();
|
---|
| 1946 | }
|
---|
| 1947 |
|
---|
| 1948 |
|
---|
| 1949 | return true;
|
---|
| 1950 | }
|
---|
| 1951 |
|
---|
| 1952 |
|
---|
[850] | 1953 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 1954 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 1955 | {
|
---|
| 1956 | // HACK: needed only for lower_bound algorithm to find the
|
---|
| 1957 | // intersected objects
|
---|
| 1958 |
|
---|
[850] | 1959 | Vector3 bmin, bmax;
|
---|
| 1960 | int id;
|
---|
[840] | 1961 |
|
---|
[850] | 1962 | if (USE_ASCII)
|
---|
[840] | 1963 | {
|
---|
[850] | 1964 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 1965 |
|
---|
[850] | 1966 | if (!boxesIn.is_open())
|
---|
[840] | 1967 | {
|
---|
[850] | 1968 | cout << "failed to open file " << filename << endl;
|
---|
| 1969 | return false;
|
---|
[840] | 1970 | }
|
---|
[850] | 1971 |
|
---|
| 1972 | string buf;
|
---|
| 1973 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 1974 | {
|
---|
[850] | 1975 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 1976 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 1977 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 1978 |
|
---|
| 1979 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 1980 | // MeshInstance *mi = new MeshInstance();
|
---|
| 1981 | // HACK: set bounding box to new box
|
---|
| 1982 | //mi->mBox = box;
|
---|
| 1983 |
|
---|
| 1984 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 1985 | }
|
---|
| 1986 |
|
---|
[850] | 1987 | boxesIn.close();
|
---|
[840] | 1988 | }
|
---|
[850] | 1989 | else
|
---|
[840] | 1990 | {
|
---|
[850] | 1991 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 1992 |
|
---|
[850] | 1993 | if (!boxesIn.is_open())
|
---|
| 1994 | return false;
|
---|
| 1995 |
|
---|
| 1996 | while (1)
|
---|
[840] | 1997 | {
|
---|
[850] | 1998 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 1999 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2000 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2001 |
|
---|
| 2002 | if (boxesIn.eof())
|
---|
| 2003 | break;
|
---|
| 2004 |
|
---|
| 2005 |
|
---|
| 2006 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2007 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2008 |
|
---|
| 2009 | // HACK: set bounding box to new box
|
---|
| 2010 | //mi->mBox = box;
|
---|
| 2011 | //boxes.push_back(mi);
|
---|
| 2012 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2013 | }
|
---|
| 2014 |
|
---|
[850] | 2015 | boxesIn.close();
|
---|
[840] | 2016 | }
|
---|
| 2017 |
|
---|
| 2018 | return true;
|
---|
[850] | 2019 | }
|
---|
[840] | 2020 |
|
---|
[440] | 2021 | /**********************************************************************/
|
---|
| 2022 | /* BspViewCellsManager implementation */
|
---|
| 2023 | /**********************************************************************/
|
---|
| 2024 |
|
---|
[482] | 2025 |
|
---|
[574] | 2026 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 2027 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 2028 | {
|
---|
[574] | 2029 | environment->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2030 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 2031 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 2032 | }
|
---|
| 2033 |
|
---|
[462] | 2034 |
|
---|
[440] | 2035 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2036 | {
|
---|
| 2037 | return mBspTree->GetRoot() != NULL;
|
---|
| 2038 | }
|
---|
| 2039 |
|
---|
[480] | 2040 |
|
---|
[440] | 2041 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2042 | {
|
---|
| 2043 | return new BspViewCell(mesh);
|
---|
| 2044 | }
|
---|
| 2045 |
|
---|
[480] | 2046 |
|
---|
[574] | 2047 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2048 | const VssRayContainer &rays)
|
---|
[440] | 2049 | {
|
---|
[441] | 2050 | // if view cells were already constructed
|
---|
[440] | 2051 | if (ViewCellsConstructed())
|
---|
| 2052 | return 0;
|
---|
| 2053 |
|
---|
| 2054 | int sampleContributions = 0;
|
---|
[503] | 2055 |
|
---|
[469] | 2056 | // construct view cells using the collected samples
|
---|
| 2057 | RayContainer constructionRays;
|
---|
| 2058 | VssRayContainer savedRays;
|
---|
[440] | 2059 |
|
---|
[574] | 2060 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 2061 |
|
---|
[469] | 2062 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2063 |
|
---|
[473] | 2064 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 2065 |
|
---|
[469] | 2066 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2067 | {
|
---|
[473] | 2068 | if (Random(1.0f) < prop)
|
---|
[469] | 2069 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2070 | else
|
---|
| 2071 | savedRays.push_back(*it);
|
---|
| 2072 | }
|
---|
[440] | 2073 |
|
---|
[503] | 2074 | if (mViewCells.empty())
|
---|
| 2075 | {
|
---|
| 2076 | // no view cells loaded
|
---|
[587] | 2077 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2078 | // collect final view cells
|
---|
| 2079 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2080 | }
|
---|
[469] | 2081 | else
|
---|
| 2082 | {
|
---|
| 2083 | mBspTree->Construct(mViewCells);
|
---|
| 2084 | }
|
---|
| 2085 |
|
---|
| 2086 | // destroy rays created only for construction
|
---|
| 2087 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2088 |
|
---|
[440] | 2089 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 2090 |
|
---|
| 2091 | //EvaluateViewCellsStats();
|
---|
[660] | 2092 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2093 |
|
---|
[469] | 2094 | // recast rest of the rays
|
---|
[649] | 2095 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2096 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2097 |
|
---|
[719] | 2098 | // real meshes are contructed at this stage
|
---|
| 2099 | if (0)
|
---|
| 2100 | {
|
---|
| 2101 | cout << "finalizing view cells ... ";
|
---|
| 2102 | FinalizeViewCells(true);
|
---|
| 2103 | cout << "finished" << endl;
|
---|
| 2104 | }
|
---|
| 2105 |
|
---|
[440] | 2106 | return sampleContributions;
|
---|
| 2107 | }
|
---|
| 2108 |
|
---|
[503] | 2109 |
|
---|
[480] | 2110 | void BspViewCellsManager::CollectViewCells()
|
---|
| 2111 | {
|
---|
[587] | 2112 | // view cells tree constructed
|
---|
| 2113 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 2114 | {
|
---|
[587] | 2115 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2116 | }
|
---|
| 2117 | else
|
---|
| 2118 | {
|
---|
| 2119 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 2120 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 2121 | mNumActiveViewCells);
|
---|
[587] | 2122 | }
|
---|
[480] | 2123 | }
|
---|
[468] | 2124 |
|
---|
[503] | 2125 |
|
---|
[471] | 2126 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2127 | {
|
---|
[471] | 2128 | // compute view cell area as subsititute for probability
|
---|
[591] | 2129 | if (1)
|
---|
| 2130 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2131 | else
|
---|
| 2132 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2133 | }
|
---|
[440] | 2134 |
|
---|
[503] | 2135 |
|
---|
[440] | 2136 |
|
---|
[468] | 2137 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2138 | const Vector3 &termination,
|
---|
| 2139 | ViewCellContainer &viewcells)
|
---|
[440] | 2140 | {
|
---|
[468] | 2141 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2142 | }
|
---|
| 2143 |
|
---|
| 2144 |
|
---|
[503] | 2145 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2146 | const VssRayContainer &rays)
|
---|
| 2147 | {
|
---|
[469] | 2148 | if (!ViewCellsConstructed())
|
---|
[441] | 2149 | {
|
---|
| 2150 | Debug << "view cells not constructed" << endl;
|
---|
| 2151 | return 0;
|
---|
| 2152 | }
|
---|
[590] | 2153 |
|
---|
| 2154 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 2155 | if (mViewCellsFinished)
|
---|
| 2156 | {
|
---|
| 2157 | FinalizeViewCells(true);
|
---|
| 2158 | EvaluateViewCellsStats();
|
---|
| 2159 |
|
---|
| 2160 | return 0;
|
---|
| 2161 | }
|
---|
| 2162 |
|
---|
[440] | 2163 | //-- post processing of bsp view cells
|
---|
[600] | 2164 |
|
---|
[440] | 2165 | int vcSize = 0;
|
---|
| 2166 | int pvsSize = 0;
|
---|
| 2167 |
|
---|
[591] | 2168 | //-- merge view cells
|
---|
[649] | 2169 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2170 | long startTime = GetTime();
|
---|
| 2171 |
|
---|
| 2172 | VssRayContainer postProcessRays;
|
---|
| 2173 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2174 |
|
---|
[592] | 2175 | if (mMergeViewCells)
|
---|
[591] | 2176 | {
|
---|
[660] | 2177 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2178 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2179 | }
|
---|
| 2180 | else
|
---|
| 2181 | {
|
---|
[660] | 2182 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2183 |
|
---|
[649] | 2184 | // create spatial merge hierarchy
|
---|
[752] | 2185 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2186 | mViewCellsTree->SetRoot(root);
|
---|
| 2187 |
|
---|
| 2188 | // compute pvs
|
---|
| 2189 | ObjectPvs pvs;
|
---|
| 2190 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2191 | }
|
---|
[440] | 2192 |
|
---|
[660] | 2193 | // export statistics after merge
|
---|
[666] | 2194 | if (1)
|
---|
| 2195 | {
|
---|
| 2196 | char mstats[100];
|
---|
| 2197 | environment->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
| 2198 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2199 | }
|
---|
[650] | 2200 |
|
---|
[649] | 2201 | //-- stats and visualizations
|
---|
| 2202 | cout << "finished" << endl;
|
---|
[650] | 2203 | cout << "merged view cells in "
|
---|
[752] | 2204 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[440] | 2205 |
|
---|
[650] | 2206 | Debug << "Postprocessing: Merged view cells in "
|
---|
[752] | 2207 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
[649] | 2208 |
|
---|
[503] | 2209 |
|
---|
[660] | 2210 | //-- visualization and statistics
|
---|
[600] | 2211 | // reset view cells and stats
|
---|
[480] | 2212 | ResetViewCells();
|
---|
[660] | 2213 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2214 |
|
---|
[660] | 2215 |
|
---|
[600] | 2216 | int savedColorCode = mColorCode;
|
---|
[605] | 2217 |
|
---|
[600] | 2218 | //BspLeaf::NewMail();
|
---|
| 2219 | if (1) // export merged view cells
|
---|
| 2220 | {
|
---|
| 2221 | mColorCode = 0;
|
---|
[605] | 2222 |
|
---|
[744] | 2223 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2224 |
|
---|
[600] | 2225 |
|
---|
| 2226 | cout << "exporting view cells after merge ... ";
|
---|
| 2227 |
|
---|
| 2228 | if (exporter)
|
---|
| 2229 | {
|
---|
| 2230 | if (mExportGeometry)
|
---|
| 2231 | exporter->ExportGeometry(objects);
|
---|
| 2232 |
|
---|
| 2233 | //exporter->SetWireframe();
|
---|
| 2234 | exporter->SetFilled();
|
---|
| 2235 | ExportViewCellsForViz(exporter);
|
---|
| 2236 |
|
---|
| 2237 |
|
---|
| 2238 | delete exporter;
|
---|
| 2239 | }
|
---|
| 2240 | cout << "finished" << endl;
|
---|
| 2241 | }
|
---|
| 2242 |
|
---|
[752] | 2243 | if (1) // export merged view cells using pvs color coding
|
---|
[600] | 2244 | {
|
---|
| 2245 | mColorCode = 1;
|
---|
| 2246 |
|
---|
[744] | 2247 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2248 |
|
---|
| 2249 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2250 |
|
---|
| 2251 | if (exporter)
|
---|
| 2252 | {
|
---|
| 2253 | //exporter->SetWireframe();
|
---|
[752] | 2254 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
| 2255 |
|
---|
[600] | 2256 | if (mExportGeometry)
|
---|
| 2257 | exporter->ExportGeometry(objects);
|
---|
| 2258 |
|
---|
| 2259 | //exporter->SetWireframe();
|
---|
| 2260 | exporter->SetFilled();
|
---|
| 2261 | ExportViewCellsForViz(exporter);
|
---|
| 2262 |
|
---|
| 2263 | delete exporter;
|
---|
| 2264 | }
|
---|
| 2265 | cout << "finished" << endl;
|
---|
| 2266 | }
|
---|
| 2267 |
|
---|
[693] | 2268 |
|
---|
| 2269 | // only for testing
|
---|
| 2270 | TestSubdivision();
|
---|
| 2271 |
|
---|
[600] | 2272 | mColorCode = savedColorCode;
|
---|
| 2273 |
|
---|
[719] | 2274 | // compute final meshes and volume / area
|
---|
| 2275 | if (1) FinalizeViewCells(true);
|
---|
| 2276 |
|
---|
[587] | 2277 | // write view cells to disc
|
---|
| 2278 | if (mExportViewCells)
|
---|
| 2279 | {
|
---|
[840] | 2280 | char filename[100];
|
---|
| 2281 | environment->GetStringValue("ViewCells.filename", filename);
|
---|
[871] | 2282 | ExportViewCells(filename, mExportPvs);
|
---|
[587] | 2283 | }
|
---|
[840] | 2284 |
|
---|
| 2285 | // export bounding boxes
|
---|
| 2286 | if (mExportBboxesForPvs)
|
---|
| 2287 | {
|
---|
| 2288 | char filename[100];
|
---|
| 2289 | environment->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
| 2290 | ExportBoundingBoxes(filename, objects);
|
---|
| 2291 | }
|
---|
[587] | 2292 |
|
---|
[840] | 2293 |
|
---|
[650] | 2294 | return 0;
|
---|
[440] | 2295 | }
|
---|
| 2296 |
|
---|
[477] | 2297 |
|
---|
| 2298 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2299 | {
|
---|
| 2300 | }
|
---|
| 2301 |
|
---|
| 2302 |
|
---|
[440] | 2303 | int BspViewCellsManager::GetType() const
|
---|
| 2304 | {
|
---|
| 2305 | return BSP;
|
---|
| 2306 | }
|
---|
| 2307 |
|
---|
| 2308 |
|
---|
| 2309 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2310 | const VssRayContainer &sampleRays)
|
---|
[440] | 2311 | {
|
---|
[469] | 2312 | if (!ViewCellsConstructed())
|
---|
| 2313 | return;
|
---|
[574] | 2314 |
|
---|
[600] | 2315 | int savedColorCode = mColorCode;
|
---|
| 2316 |
|
---|
| 2317 |
|
---|
| 2318 |
|
---|
| 2319 | if (1) // export final view cells
|
---|
[440] | 2320 | {
|
---|
[600] | 2321 | mColorCode = 1;
|
---|
[587] | 2322 |
|
---|
[822] | 2323 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 2324 |
|
---|
| 2325 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2326 |
|
---|
[469] | 2327 | if (exporter)
|
---|
[440] | 2328 | {
|
---|
[600] | 2329 | //exporter->SetWireframe();
|
---|
| 2330 |
|
---|
| 2331 | if (mExportGeometry)
|
---|
| 2332 | exporter->ExportGeometry(objects);
|
---|
[590] | 2333 |
|
---|
[600] | 2334 | //exporter->SetWireframe();
|
---|
[801] | 2335 | //exporter->SetFilled();
|
---|
| 2336 | bool b = mUseClipPlaneForViz;
|
---|
| 2337 | mUseClipPlaneForViz = false;
|
---|
[508] | 2338 | ExportViewCellsForViz(exporter);
|
---|
[801] | 2339 | mUseClipPlaneForViz = b;
|
---|
[469] | 2340 | delete exporter;
|
---|
[440] | 2341 | }
|
---|
[469] | 2342 | cout << "finished" << endl;
|
---|
[503] | 2343 | }
|
---|
[477] | 2344 |
|
---|
[600] | 2345 | mColorCode = savedColorCode;
|
---|
| 2346 |
|
---|
[469] | 2347 | //-- visualization of the BSP splits
|
---|
| 2348 | bool exportSplits = false;
|
---|
| 2349 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2350 |
|
---|
[469] | 2351 | if (exportSplits)
|
---|
[440] | 2352 | {
|
---|
[469] | 2353 | cout << "exporting splits ... ";
|
---|
[477] | 2354 | ExportSplits(objects);
|
---|
[469] | 2355 | cout << "finished" << endl;
|
---|
[440] | 2356 | }
|
---|
[477] | 2357 |
|
---|
[600] | 2358 | // export single view cells
|
---|
[477] | 2359 | ExportBspPvs(objects);
|
---|
[440] | 2360 | }
|
---|
| 2361 |
|
---|
| 2362 |
|
---|
[477] | 2363 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2364 | {
|
---|
| 2365 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2366 |
|
---|
[503] | 2367 | if (exporter)
|
---|
| 2368 | {
|
---|
[598] | 2369 | //exporter->SetFilled();
|
---|
| 2370 |
|
---|
| 2371 | if (mExportGeometry)
|
---|
| 2372 | exporter->ExportGeometry(objects);
|
---|
| 2373 |
|
---|
[503] | 2374 | Material m;
|
---|
[440] | 2375 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2376 | exporter->SetForcedMaterial(m);
|
---|
| 2377 | exporter->SetWireframe();
|
---|
[503] | 2378 |
|
---|
[440] | 2379 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2380 |
|
---|
[482] | 2381 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2382 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2383 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2384 | //exporter->ResetForcedMaterial();
|
---|
| 2385 |
|
---|
[440] | 2386 | delete exporter;
|
---|
| 2387 | }
|
---|
| 2388 | }
|
---|
| 2389 |
|
---|
[477] | 2390 |
|
---|
| 2391 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2392 | {
|
---|
[477] | 2393 | const int leafOut = 10;
|
---|
[503] | 2394 |
|
---|
[477] | 2395 | ViewCell::NewMail();
|
---|
[440] | 2396 |
|
---|
[477] | 2397 | //-- some rays for output
|
---|
| 2398 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2399 |
|
---|
[477] | 2400 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2401 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2402 |
|
---|
[478] | 2403 | // sort view cells to get largest view cells
|
---|
[587] | 2404 | if (0)
|
---|
[801] | 2405 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[587] | 2406 |
|
---|
[503] | 2407 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2408 |
|
---|
[478] | 2409 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2410 | {
|
---|
[478] | 2411 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2412 | VssRayContainer vcRays;
|
---|
| 2413 | Intersectable::NewMail();
|
---|
[582] | 2414 | ViewCell *vc;
|
---|
| 2415 |
|
---|
| 2416 | if (0)
|
---|
| 2417 | vc = mViewCells[i];
|
---|
| 2418 | else
|
---|
| 2419 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2420 |
|
---|
[478] | 2421 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2422 |
|
---|
[587] | 2423 | if(0)
|
---|
[477] | 2424 | {
|
---|
[587] | 2425 | // check whether we can add the current ray to the output rays
|
---|
| 2426 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2427 | {
|
---|
[587] | 2428 | BspRay *ray = mBspRays[k];
|
---|
| 2429 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2430 | {
|
---|
| 2431 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2432 | if (vc == leaf->GetViewCell())
|
---|
| 2433 | vcRays.push_back(ray->vssRay);
|
---|
| 2434 | }
|
---|
[477] | 2435 | }
|
---|
| 2436 | }
|
---|
[587] | 2437 |
|
---|
[478] | 2438 | //bspLeaves[j]->Mail();
|
---|
| 2439 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2440 |
|
---|
[478] | 2441 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2442 |
|
---|
[478] | 2443 | exporter->SetWireframe();
|
---|
[477] | 2444 |
|
---|
[478] | 2445 | Material m;//= RandomMaterial();
|
---|
| 2446 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2447 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2448 |
|
---|
[587] | 2449 | ExportViewCellGeometry(exporter, vc);
|
---|
| 2450 |
|
---|
[478] | 2451 | // export rays piercing this view cell
|
---|
| 2452 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2453 |
|
---|
[478] | 2454 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2455 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2456 |
|
---|
[478] | 2457 | ObjectPvsMap::const_iterator it,
|
---|
| 2458 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2459 |
|
---|
[478] | 2460 | exporter->SetFilled();
|
---|
[469] | 2461 |
|
---|
[478] | 2462 | // output PVS of view cell
|
---|
[503] | 2463 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2464 | {
|
---|
| 2465 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2466 |
|
---|
[478] | 2467 | if (!intersect->Mailed())
|
---|
| 2468 | {
|
---|
| 2469 | Material m = RandomMaterial();
|
---|
| 2470 | exporter->SetForcedMaterial(m);
|
---|
| 2471 |
|
---|
| 2472 | exporter->ExportIntersectable(intersect);
|
---|
| 2473 | intersect->Mail();
|
---|
[503] | 2474 | }
|
---|
[477] | 2475 | }
|
---|
[503] | 2476 |
|
---|
[478] | 2477 | DEL_PTR(exporter);
|
---|
| 2478 | cout << "finished" << endl;
|
---|
[477] | 2479 | }
|
---|
| 2480 |
|
---|
| 2481 | Debug << endl;
|
---|
[440] | 2482 | }
|
---|
| 2483 |
|
---|
[441] | 2484 |
|
---|
[503] | 2485 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 2486 | ViewCell *vc) const
|
---|
| 2487 | {
|
---|
[600] | 2488 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[482] | 2489 |
|
---|
| 2490 | float importance = 0;
|
---|
[598] | 2491 | static Material m;
|
---|
[482] | 2492 |
|
---|
| 2493 | switch (mColorCode)
|
---|
| 2494 | {
|
---|
[598] | 2495 | case 0: // Random
|
---|
| 2496 | {
|
---|
| 2497 | if (vcValid)
|
---|
| 2498 | {
|
---|
| 2499 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2500 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[600] | 2501 | m.mDiffuseColor.b = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[598] | 2502 | }
|
---|
| 2503 | else
|
---|
| 2504 | {
|
---|
| 2505 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2506 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2507 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2508 | }
|
---|
| 2509 |
|
---|
| 2510 | exporter->SetForcedMaterial(m);
|
---|
| 2511 | return;
|
---|
| 2512 | }
|
---|
| 2513 |
|
---|
[482] | 2514 | case 1: // pvs
|
---|
| 2515 | {
|
---|
[503] | 2516 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[660] | 2517 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[598] | 2518 |
|
---|
[482] | 2519 | }
|
---|
| 2520 | break;
|
---|
| 2521 | case 2: // merges
|
---|
| 2522 | {
|
---|
[736] | 2523 | int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
[660] | 2524 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 2525 | }
|
---|
[598] | 2526 | //break;
|
---|
[482] | 2527 | case 3: // merge tree differene
|
---|
| 2528 | {
|
---|
| 2529 | // TODO
|
---|
[598] | 2530 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2531 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2532 |
|
---|
[482] | 2533 | }
|
---|
| 2534 | break;
|
---|
| 2535 | default:
|
---|
| 2536 | break;
|
---|
| 2537 | }
|
---|
| 2538 |
|
---|
[598] | 2539 | // special color code for invalid view cells
|
---|
[482] | 2540 | m.mDiffuseColor.r = importance;
|
---|
| 2541 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[598] | 2542 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[503] | 2543 |
|
---|
[598] | 2544 | //Debug << "importance: " << importance << endl;
|
---|
[482] | 2545 | exporter->SetForcedMaterial(m);
|
---|
| 2546 | }
|
---|
| 2547 |
|
---|
[587] | 2548 |
|
---|
[693] | 2549 | void BspViewCellsManager::TestSubdivision()
|
---|
| 2550 | {
|
---|
| 2551 | ViewCellContainer leaves;
|
---|
| 2552 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 2553 |
|
---|
| 2554 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2555 |
|
---|
| 2556 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 2557 | float subdivVol = 0;
|
---|
| 2558 | float newVol = 0;
|
---|
| 2559 |
|
---|
| 2560 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2561 | {
|
---|
| 2562 | BspNodeGeometry geom;
|
---|
| 2563 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2564 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2565 |
|
---|
| 2566 | const float lVol = geom.GetVolume();
|
---|
| 2567 |
|
---|
| 2568 | newVol += lVol;
|
---|
| 2569 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 2570 |
|
---|
[704] | 2571 | float thres = 0.9f;
|
---|
[694] | 2572 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 2573 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 2574 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 2575 | }
|
---|
| 2576 |
|
---|
| 2577 | Debug << "exact volume: " << vol << endl;
|
---|
| 2578 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 2579 | Debug << "new volume: " << newVol << endl;
|
---|
| 2580 | }
|
---|
| 2581 |
|
---|
| 2582 |
|
---|
[580] | 2583 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2584 | ViewCell *vc,
|
---|
[660] | 2585 | const Plane3 *clipPlane) const
|
---|
[482] | 2586 | {
|
---|
| 2587 | if (vc->GetMesh())
|
---|
| 2588 | {
|
---|
[587] | 2589 | exporter->ExportMesh(vc->GetMesh());
|
---|
[726] | 2590 |
|
---|
[587] | 2591 | return;
|
---|
[482] | 2592 | }
|
---|
[587] | 2593 |
|
---|
[726] | 2594 |
|
---|
[660] | 2595 | if (clipPlane)
|
---|
[591] | 2596 | {
|
---|
[726] | 2597 | ViewCellContainer leaves;
|
---|
| 2598 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2599 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 2600 |
|
---|
[726] | 2601 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 2602 | {
|
---|
[726] | 2603 | BspNodeGeometry geom;
|
---|
| 2604 |
|
---|
[681] | 2605 | BspNodeGeometry front;
|
---|
| 2606 | BspNodeGeometry back;
|
---|
[591] | 2607 |
|
---|
[726] | 2608 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2609 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 2610 |
|
---|
[726] | 2611 | const float eps = 0.00000001f;
|
---|
| 2612 | const int cf = geom.Side(*clipPlane, eps);
|
---|
| 2613 |
|
---|
| 2614 | if (cf == -1)
|
---|
| 2615 | {
|
---|
| 2616 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 2617 | }
|
---|
| 2618 | else if (cf == 0)
|
---|
| 2619 | {
|
---|
| 2620 | geom.SplitGeometry(front,
|
---|
| 2621 | back,
|
---|
| 2622 | *clipPlane,
|
---|
| 2623 | mViewSpaceBox,
|
---|
| 2624 | eps);
|
---|
| 2625 |
|
---|
| 2626 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 2627 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 2628 | if (back.Valid())
|
---|
| 2629 | {
|
---|
| 2630 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 2631 | }
|
---|
| 2632 | }
|
---|
[681] | 2633 | }
|
---|
[591] | 2634 | }
|
---|
| 2635 | else
|
---|
| 2636 | {
|
---|
[726] | 2637 | BspNodeGeometry geom;
|
---|
| 2638 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2639 |
|
---|
[678] | 2640 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 2641 | }
|
---|
[482] | 2642 | }
|
---|
| 2643 |
|
---|
[503] | 2644 |
|
---|
| 2645 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2646 | {
|
---|
[726] | 2647 | // delete previous mesh
|
---|
| 2648 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 2649 | BspNodeGeometry geom;
|
---|
| 2650 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2651 |
|
---|
| 2652 | Mesh *mesh = new Mesh();
|
---|
[726] | 2653 |
|
---|
[840] | 2654 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 2655 | vc->SetMesh(mesh);
|
---|
[840] | 2656 |
|
---|
[726] | 2657 | // put mesh into mesh container so we can savely delete it
|
---|
[587] | 2658 | mMeshContainer.push_back(mesh);
|
---|
[503] | 2659 | }
|
---|
| 2660 |
|
---|
[551] | 2661 |
|
---|
[587] | 2662 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 2663 | const bool createMesh)
|
---|
[502] | 2664 | {
|
---|
[587] | 2665 | float area = 0;
|
---|
| 2666 | float volume = 0;
|
---|
[572] | 2667 |
|
---|
[587] | 2668 | ViewCellContainer leaves;
|
---|
| 2669 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 2670 |
|
---|
| 2671 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2672 |
|
---|
[693] | 2673 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 2674 | {
|
---|
| 2675 | BspNodeGeometry geom;
|
---|
| 2676 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2677 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2678 |
|
---|
[719] | 2679 | const float lVol = geom.GetVolume();
|
---|
| 2680 | const float lArea = geom.GetArea();
|
---|
[693] | 2681 |
|
---|
| 2682 | //(*it)->SetVolume(vol);
|
---|
| 2683 | //(*it)->SetArea(area);
|
---|
| 2684 |
|
---|
| 2685 | area += lArea;
|
---|
| 2686 | volume += lVol;
|
---|
| 2687 |
|
---|
| 2688 | CreateMesh(*it);
|
---|
[587] | 2689 | }
|
---|
| 2690 |
|
---|
| 2691 | viewCell->SetVolume(volume);
|
---|
| 2692 | viewCell->SetArea(area);
|
---|
[502] | 2693 | }
|
---|
| 2694 |
|
---|
[580] | 2695 |
|
---|
[879] | 2696 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 2697 | {
|
---|
[587] | 2698 | if (!mBspTree)
|
---|
| 2699 | return NULL;
|
---|
| 2700 |
|
---|
| 2701 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 2702 | return NULL;
|
---|
| 2703 |
|
---|
| 2704 | return mBspTree->GetViewCell(point);
|
---|
[580] | 2705 | }
|
---|
| 2706 |
|
---|
| 2707 |
|
---|
[587] | 2708 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2709 | vector<MergeCandidate> &candidates)
|
---|
| 2710 | {
|
---|
| 2711 | cout << "collecting merge candidates ... " << endl;
|
---|
| 2712 |
|
---|
| 2713 | if (mUseRaysForMerge)
|
---|
| 2714 | {
|
---|
| 2715 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 2716 | }
|
---|
| 2717 | else
|
---|
| 2718 | {
|
---|
| 2719 | vector<BspLeaf *> leaves;
|
---|
| 2720 | mBspTree->CollectLeaves(leaves);
|
---|
| 2721 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 2722 | }
|
---|
| 2723 |
|
---|
| 2724 | cout << "fininshed collecting candidates" << endl;
|
---|
| 2725 | }
|
---|
| 2726 |
|
---|
| 2727 |
|
---|
[440] | 2728 |
|
---|
[871] | 2729 | bool BspViewCellsManager::ExportViewCells(const string filename, const bool exportPvs)
|
---|
[590] | 2730 | {
|
---|
| 2731 | cout << "exporting view cells to xml ... ";
|
---|
| 2732 | std::ofstream stream;
|
---|
[503] | 2733 |
|
---|
[590] | 2734 | // for output we need unique ids for each view cell
|
---|
| 2735 | CreateUniqueViewCellIds();
|
---|
[503] | 2736 |
|
---|
[590] | 2737 |
|
---|
| 2738 | stream.open(filename.c_str());
|
---|
| 2739 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 2740 | stream << "<Visibility_Solution>" << endl;
|
---|
| 2741 |
|
---|
| 2742 | //-- the view space bounding box
|
---|
| 2743 | stream << "<ViewSpaceBox"
|
---|
| 2744 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 2745 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 2746 |
|
---|
| 2747 | //-- the type of the view cells hierarchy
|
---|
| 2748 | //stream << "<Hierarchy name=\"bspTree\" />" << endl;
|
---|
[840] | 2749 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
| 2750 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl;
|
---|
| 2751 |
|
---|
[590] | 2752 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 2753 | stream << "<ViewCells>" << endl;
|
---|
[610] | 2754 |
|
---|
[871] | 2755 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[590] | 2756 |
|
---|
| 2757 | stream << "</ViewCells>" << endl;
|
---|
| 2758 |
|
---|
| 2759 | //-- load the hierarchy
|
---|
| 2760 | stream << "<Hierarchy>" << endl;
|
---|
| 2761 | mBspTree->Export(stream);
|
---|
| 2762 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 2763 |
|
---|
| 2764 | stream << "</Visibility_Solution>" << endl;
|
---|
| 2765 | stream.close();
|
---|
| 2766 |
|
---|
| 2767 | cout << "finished" << endl;
|
---|
| 2768 |
|
---|
| 2769 | return true;
|
---|
| 2770 | }
|
---|
| 2771 |
|
---|
| 2772 |
|
---|
[650] | 2773 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 2774 | {
|
---|
[752] | 2775 | // terminate recursion
|
---|
[650] | 2776 | if (root->IsLeaf())
|
---|
| 2777 | {
|
---|
[752] | 2778 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 2779 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 2780 | return leaf->GetViewCell();
|
---|
[650] | 2781 | }
|
---|
| 2782 |
|
---|
| 2783 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 2784 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 2785 |
|
---|
[752] | 2786 | // evaluate merge cost for priority traversal
|
---|
[650] | 2787 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 2788 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 2789 |
|
---|
[650] | 2790 | float volume = 0;
|
---|
[649] | 2791 |
|
---|
[650] | 2792 | BspNode *front = interior->GetFront();
|
---|
| 2793 | BspNode *back = interior->GetBack();
|
---|
[649] | 2794 |
|
---|
[752] | 2795 |
|
---|
| 2796 | //-- recursivly compute child hierarchies
|
---|
[650] | 2797 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 2798 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 2799 |
|
---|
[752] | 2800 |
|
---|
| 2801 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 2802 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 2803 |
|
---|
[650] | 2804 | volume += backVc->GetVolume();
|
---|
| 2805 | volume += frontVc->GetVolume();
|
---|
[649] | 2806 |
|
---|
[650] | 2807 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 2808 |
|
---|
[650] | 2809 | return viewCellInterior;
|
---|
[610] | 2810 | }
|
---|
| 2811 |
|
---|
[650] | 2812 |
|
---|
[752] | 2813 | void BspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2814 | {
|
---|
| 2815 | // terminate traversal
|
---|
| 2816 | if (root->IsLeaf())
|
---|
| 2817 | {
|
---|
| 2818 | pvs = root->GetPvs();
|
---|
| 2819 |
|
---|
| 2820 | root->mPvsSize = pvs.GetSize();
|
---|
| 2821 | root->mPvsSizeValid = true;
|
---|
| 2822 |
|
---|
| 2823 | return;
|
---|
| 2824 | }
|
---|
| 2825 |
|
---|
| 2826 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 2827 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 2828 |
|
---|
| 2829 | vector<ObjectPvs> pvsList;
|
---|
| 2830 |
|
---|
| 2831 |
|
---|
| 2832 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 2833 | {
|
---|
| 2834 | ObjectPvs objPvs;
|
---|
| 2835 |
|
---|
| 2836 | //-- recursivly compute child pvss
|
---|
| 2837 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 2838 |
|
---|
| 2839 | // store pvs in vector
|
---|
| 2840 | pvsList.push_back(objPvs);
|
---|
| 2841 | }
|
---|
| 2842 |
|
---|
| 2843 | #if 1
|
---|
| 2844 | Intersectable::NewMail();
|
---|
| 2845 |
|
---|
| 2846 | //-- faster way of computing pvs:
|
---|
| 2847 | // construct merged pvs by adding
|
---|
| 2848 | // and only those of the next pvs which were not mailed.
|
---|
| 2849 | // note: sumpdf is not correct!!
|
---|
| 2850 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2851 |
|
---|
| 2852 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2853 | {
|
---|
| 2854 |
|
---|
| 2855 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2856 |
|
---|
| 2857 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2858 | {
|
---|
| 2859 |
|
---|
| 2860 | Intersectable *intersect = (*pit).first;
|
---|
| 2861 |
|
---|
| 2862 | if (!intersect->Mailed())
|
---|
| 2863 | {
|
---|
| 2864 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2865 | intersect->Mail();
|
---|
| 2866 | }
|
---|
| 2867 | }
|
---|
| 2868 | }
|
---|
| 2869 |
|
---|
| 2870 | // store pvs in this node
|
---|
| 2871 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2872 | {
|
---|
| 2873 | interior->mPvs = pvs;
|
---|
| 2874 | }
|
---|
| 2875 |
|
---|
| 2876 | // set new pvs size
|
---|
| 2877 | interior->mPvsSize = pvs.GetSize();
|
---|
| 2878 | interior->mPvsSizeValid = true;
|
---|
| 2879 |
|
---|
| 2880 | #else
|
---|
| 2881 | // really merge cells: slow put sumpdf is correct
|
---|
| 2882 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 2883 |
|
---|
| 2884 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2885 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2886 | #endif
|
---|
| 2887 |
|
---|
| 2888 | }
|
---|
| 2889 |
|
---|
[590] | 2890 | /************************************************************************/
|
---|
| 2891 | /* KdViewCellsManager implementation */
|
---|
| 2892 | /************************************************************************/
|
---|
| 2893 |
|
---|
| 2894 |
|
---|
| 2895 |
|
---|
[440] | 2896 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
[469] | 2897 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 2898 | {
|
---|
| 2899 | }
|
---|
| 2900 |
|
---|
[605] | 2901 |
|
---|
[471] | 2902 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 2903 | {
|
---|
[479] | 2904 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 2905 | if (0)
|
---|
| 2906 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 2907 | else
|
---|
| 2908 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 2909 | }
|
---|
| 2910 |
|
---|
| 2911 |
|
---|
| 2912 |
|
---|
[479] | 2913 |
|
---|
[480] | 2914 | void KdViewCellsManager::CollectViewCells()
|
---|
| 2915 | {
|
---|
| 2916 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 2917 | }
|
---|
[479] | 2918 |
|
---|
[519] | 2919 |
|
---|
[574] | 2920 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 2921 | const VssRayContainer &rays)
|
---|
[440] | 2922 | {
|
---|
[441] | 2923 | // if view cells already constructed
|
---|
[440] | 2924 | if (ViewCellsConstructed())
|
---|
| 2925 | return 0;
|
---|
[441] | 2926 |
|
---|
[440] | 2927 | mKdTree->Construct();
|
---|
| 2928 |
|
---|
[480] | 2929 | mTotalAreaValid = false;
|
---|
[469] | 2930 | // create the view cells
|
---|
| 2931 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 2932 |
|
---|
[480] | 2933 | // cast rays
|
---|
[574] | 2934 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 2935 |
|
---|
[479] | 2936 | EvaluateViewCellsStats();
|
---|
[660] | 2937 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 2938 |
|
---|
[440] | 2939 | return 0;
|
---|
| 2940 | }
|
---|
| 2941 |
|
---|
[587] | 2942 |
|
---|
[440] | 2943 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 2944 | {
|
---|
| 2945 | return mKdTree->GetRoot() != NULL;
|
---|
| 2946 | }
|
---|
| 2947 |
|
---|
[503] | 2948 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 2949 | const VssRayContainer &rays)
|
---|
[440] | 2950 | {
|
---|
| 2951 | return 0;
|
---|
| 2952 | }
|
---|
| 2953 |
|
---|
| 2954 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2955 | const VssRayContainer &sampleRays)
|
---|
[440] | 2956 | {
|
---|
[441] | 2957 | if (!ViewCellsConstructed())
|
---|
| 2958 | return;
|
---|
| 2959 |
|
---|
[469] | 2960 | // using view cells instead of the kd PVS of objects
|
---|
| 2961 | const bool useViewCells = true;
|
---|
| 2962 | bool exportRays = false;
|
---|
[440] | 2963 |
|
---|
| 2964 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 2965 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 2966 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 2967 |
|
---|
[469] | 2968 | if (useViewCells)
|
---|
[440] | 2969 | {
|
---|
[469] | 2970 | const int leafOut = 10;
|
---|
[503] | 2971 |
|
---|
[469] | 2972 | ViewCell::NewMail();
|
---|
[503] | 2973 |
|
---|
[469] | 2974 | //-- some rays for output
|
---|
| 2975 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 2976 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 2977 |
|
---|
| 2978 | //-- some random view cells and rays for output
|
---|
| 2979 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 2980 |
|
---|
[469] | 2981 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 2982 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 2983 |
|
---|
[469] | 2984 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 2985 | {
|
---|
[469] | 2986 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 2987 | RayContainer vcRays;
|
---|
[503] | 2988 |
|
---|
[469] | 2989 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 2990 | #if 0
|
---|
[469] | 2991 | // check whether we can add the current ray to the output rays
|
---|
[503] | 2992 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 2993 | {
|
---|
[469] | 2994 | Ray *ray = sampleRays[k];
|
---|
[503] | 2995 |
|
---|
[469] | 2996 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 2997 | {
|
---|
| 2998 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 2999 |
|
---|
| 3000 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3001 | {
|
---|
| 3002 | vcRays.push_back(ray);
|
---|
| 3003 | }
|
---|
| 3004 | }
|
---|
[479] | 3005 | }
|
---|
[503] | 3006 | #endif
|
---|
[469] | 3007 | Intersectable::NewMail();
|
---|
[503] | 3008 |
|
---|
[469] | 3009 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 3010 |
|
---|
[469] | 3011 | //bspLeaves[j]->Mail();
|
---|
| 3012 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 3013 |
|
---|
[469] | 3014 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3015 | exporter->SetFilled();
|
---|
| 3016 |
|
---|
| 3017 | exporter->SetWireframe();
|
---|
| 3018 | //exporter->SetFilled();
|
---|
[503] | 3019 |
|
---|
[469] | 3020 | Material m;//= RandomMaterial();
|
---|
| 3021 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3022 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3023 |
|
---|
[469] | 3024 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3025 | exporter->ExportBox(box);
|
---|
| 3026 |
|
---|
| 3027 | // export rays piercing this view cell
|
---|
[503] | 3028 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3029 |
|
---|
[469] | 3030 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3031 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3032 |
|
---|
[469] | 3033 | // exporter->SetWireframe();
|
---|
| 3034 | exporter->SetFilled();
|
---|
[503] | 3035 |
|
---|
[469] | 3036 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3037 | // -- output PVS of view cell
|
---|
[503] | 3038 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3039 | {
|
---|
| 3040 | Intersectable *intersect = (*it).first;
|
---|
| 3041 | if (!intersect->Mailed())
|
---|
| 3042 | {
|
---|
| 3043 | exporter->ExportIntersectable(intersect);
|
---|
| 3044 | intersect->Mail();
|
---|
[503] | 3045 | }
|
---|
[440] | 3046 | }
|
---|
[503] | 3047 |
|
---|
[469] | 3048 | DEL_PTR(exporter);
|
---|
| 3049 | cout << "finished" << endl;
|
---|
[440] | 3050 | }
|
---|
[469] | 3051 |
|
---|
| 3052 | DEL_PTR(rays);
|
---|
[440] | 3053 | }
|
---|
[469] | 3054 | else // using kd PVS of objects
|
---|
| 3055 | {
|
---|
| 3056 | for (int i = 0; i < limit; ++ i)
|
---|
| 3057 | {
|
---|
| 3058 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3059 |
|
---|
[469] | 3060 | // check whether we can add this to the rays
|
---|
[503] | 3061 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3062 | {
|
---|
| 3063 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3064 | {
|
---|
| 3065 | rays[j].push_back(ray);
|
---|
| 3066 | }
|
---|
| 3067 | }
|
---|
| 3068 | }
|
---|
[440] | 3069 |
|
---|
[503] | 3070 | if (exportRays)
|
---|
[469] | 3071 | {
|
---|
| 3072 | Exporter *exporter = NULL;
|
---|
| 3073 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3074 | exporter->SetWireframe();
|
---|
| 3075 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3076 |
|
---|
[728] | 3077 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3078 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3079 |
|
---|
| 3080 | exporter->SetFilled();
|
---|
[503] | 3081 |
|
---|
[469] | 3082 | delete exporter;
|
---|
| 3083 | }
|
---|
[440] | 3084 |
|
---|
[503] | 3085 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3086 | {
|
---|
| 3087 | Intersectable *object = objects[k];
|
---|
[503] | 3088 | char s[64];
|
---|
[469] | 3089 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 3090 |
|
---|
[469] | 3091 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3092 | exporter->SetWireframe();
|
---|
[503] | 3093 |
|
---|
[469] | 3094 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 3095 | Intersectable::NewMail();
|
---|
[503] | 3096 |
|
---|
[469] | 3097 | // avoid adding the object to the list
|
---|
| 3098 | object->Mail();
|
---|
| 3099 | ObjectContainer visibleObjects;
|
---|
[503] | 3100 |
|
---|
| 3101 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3102 | {
|
---|
| 3103 | KdNode *node = (*i).first;
|
---|
| 3104 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3105 |
|
---|
[469] | 3106 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3107 | }
|
---|
[503] | 3108 |
|
---|
[469] | 3109 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3110 | exporter->SetFilled();
|
---|
[503] | 3111 |
|
---|
[469] | 3112 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3113 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3114 |
|
---|
[469] | 3115 | Material m;
|
---|
| 3116 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3117 | exporter->SetForcedMaterial(m);
|
---|
| 3118 | exporter->ExportIntersectable(object);
|
---|
[503] | 3119 |
|
---|
[469] | 3120 | delete exporter;
|
---|
[440] | 3121 | }
|
---|
[503] | 3122 | }
|
---|
[440] | 3123 | }
|
---|
| 3124 |
|
---|
[469] | 3125 |
|
---|
[482] | 3126 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 3127 | ViewCell *vc) const
|
---|
| 3128 | {
|
---|
| 3129 | // TODO
|
---|
| 3130 | }
|
---|
| 3131 |
|
---|
[666] | 3132 |
|
---|
[580] | 3133 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3134 | {
|
---|
| 3135 | return new KdViewCell(mesh);
|
---|
| 3136 | }
|
---|
[482] | 3137 |
|
---|
[580] | 3138 |
|
---|
| 3139 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3140 | ViewCell *vc,
|
---|
[660] | 3141 | const Plane3 *clipPlane) const
|
---|
[482] | 3142 | {
|
---|
[580] | 3143 | ViewCellContainer leaves;
|
---|
[485] | 3144 |
|
---|
[580] | 3145 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3146 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3147 |
|
---|
| 3148 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3149 | {
|
---|
| 3150 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 3151 |
|
---|
| 3152 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 3153 | }
|
---|
[482] | 3154 | }
|
---|
| 3155 |
|
---|
| 3156 |
|
---|
[440] | 3157 | int KdViewCellsManager::GetType() const
|
---|
| 3158 | {
|
---|
| 3159 | return ViewCellsManager::KD;
|
---|
| 3160 | }
|
---|
| 3161 |
|
---|
| 3162 |
|
---|
[441] | 3163 |
|
---|
[440] | 3164 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3165 | {
|
---|
| 3166 | KdNode *node = leaf;
|
---|
| 3167 |
|
---|
| 3168 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3169 | node = node->mParent;
|
---|
| 3170 | return node;
|
---|
| 3171 | }
|
---|
| 3172 |
|
---|
[469] | 3173 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3174 | const Vector3 &termination,
|
---|
| 3175 | ViewCellContainer &viewcells)
|
---|
[466] | 3176 | {
|
---|
[469] | 3177 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3178 | }
|
---|
| 3179 |
|
---|
[469] | 3180 |
|
---|
[503] | 3181 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3182 | {
|
---|
[551] | 3183 | // TODO
|
---|
[503] | 3184 | }
|
---|
| 3185 |
|
---|
[580] | 3186 |
|
---|
| 3187 |
|
---|
| 3188 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3189 | vector<MergeCandidate> &candidates)
|
---|
| 3190 | {
|
---|
| 3191 | // TODO
|
---|
| 3192 | }
|
---|
| 3193 |
|
---|
| 3194 |
|
---|
[440] | 3195 | /**********************************************************************/
|
---|
| 3196 | /* VspKdViewCellsManager implementation */
|
---|
| 3197 | /**********************************************************************/
|
---|
| 3198 |
|
---|
[482] | 3199 |
|
---|
[574] | 3200 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree):
|
---|
| 3201 | ViewCellsManager(), mVspKdTree(vspKdTree)
|
---|
[440] | 3202 | {
|
---|
[574] | 3203 | environment->GetIntValue("VspKdTree.Construction.samples", mInitialSamples);
|
---|
[468] | 3204 | mVspKdTree->SetViewCellsManager(this);
|
---|
| 3205 | }
|
---|
[462] | 3206 |
|
---|
[471] | 3207 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3208 | {
|
---|
[605] | 3209 | // compute view cell area / volume as subsititute for probability
|
---|
| 3210 | if (0)
|
---|
| 3211 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3212 | else
|
---|
| 3213 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[440] | 3214 | }
|
---|
| 3215 |
|
---|
[462] | 3216 |
|
---|
[468] | 3217 |
|
---|
[503] | 3218 |
|
---|
[480] | 3219 | void VspKdViewCellsManager::CollectViewCells()
|
---|
| 3220 | {
|
---|
| 3221 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
| 3222 | }
|
---|
[462] | 3223 |
|
---|
[570] | 3224 |
|
---|
[574] | 3225 | int VspKdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 3226 | const VssRayContainer &rays)
|
---|
[440] | 3227 | {
|
---|
[441] | 3228 | // if view cells already constructed
|
---|
[440] | 3229 | if (ViewCellsConstructed())
|
---|
| 3230 | return 0;
|
---|
[503] | 3231 |
|
---|
[469] | 3232 | VssRayContainer constructionRays;
|
---|
| 3233 | VssRayContainer savedRays;
|
---|
[440] | 3234 |
|
---|
[503] | 3235 | GetRaySets(rays,
|
---|
[574] | 3236 | mInitialSamples,
|
---|
[503] | 3237 | constructionRays,
|
---|
[485] | 3238 | &savedRays);
|
---|
[503] | 3239 |
|
---|
| 3240 | Debug << "constructing vsp kd tree using "
|
---|
[469] | 3241 | << (int)constructionRays.size() << " samples" << endl;
|
---|
[452] | 3242 |
|
---|
[542] | 3243 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[452] | 3244 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
| 3245 |
|
---|
[482] | 3246 | // export leaf building blocks
|
---|
| 3247 | ExportLeaves(objects, rays);
|
---|
[480] | 3248 |
|
---|
[469] | 3249 | // finally merge kd leaf building blocks to view cells
|
---|
[485] | 3250 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
| 3251 |
|
---|
| 3252 | // collapse siblings belonging to the same view cell
|
---|
[486] | 3253 | mVspKdTree->RefineViewCells(rays);
|
---|
[485] | 3254 |
|
---|
[542] | 3255 | // collapse siblings belonging to the same view cell
|
---|
[503] | 3256 | mVspKdTree->CollapseTree();
|
---|
| 3257 |
|
---|
[482] | 3258 | // evaluale view cell stats
|
---|
| 3259 | ResetViewCells();
|
---|
[469] | 3260 |
|
---|
[660] | 3261 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[482] | 3262 |
|
---|
[485] | 3263 | long startTime = GetTime();
|
---|
[660] | 3264 |
|
---|
[469] | 3265 | // recast rest of rays
|
---|
[574] | 3266 | ComputeSampleContributions(savedRays, true, false);
|
---|
[503] | 3267 |
|
---|
| 3268 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3269 | << " secs" << endl;
|
---|
[469] | 3270 |
|
---|
| 3271 | return merged;
|
---|
[440] | 3272 | }
|
---|
| 3273 |
|
---|
| 3274 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3275 | {
|
---|
| 3276 | return mVspKdTree->GetRoot() != NULL;
|
---|
| 3277 | }
|
---|
| 3278 |
|
---|
[441] | 3279 |
|
---|
[462] | 3280 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3281 | {
|
---|
| 3282 | return new VspKdViewCell(mesh);
|
---|
| 3283 | }
|
---|
| 3284 |
|
---|
[503] | 3285 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3286 | const VssRayContainer &rays)
|
---|
[440] | 3287 | {
|
---|
[441] | 3288 | if (!ViewCellsConstructed())
|
---|
| 3289 | return 0;
|
---|
| 3290 |
|
---|
[482] | 3291 | // recalculate stats
|
---|
| 3292 | EvaluateViewCellsStats();
|
---|
| 3293 |
|
---|
[469] | 3294 | return 0;
|
---|
[440] | 3295 | }
|
---|
| 3296 |
|
---|
[482] | 3297 |
|
---|
| 3298 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
| 3299 | const VssRayContainer &sampleRays)
|
---|
[440] | 3300 | {
|
---|
[441] | 3301 | if (!ViewCellsConstructed())
|
---|
| 3302 | return;
|
---|
| 3303 |
|
---|
[482] | 3304 | //-- export leaf building blocks
|
---|
[503] | 3305 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
[482] | 3306 | if (!exporter)
|
---|
| 3307 | return;
|
---|
| 3308 |
|
---|
[598] | 3309 | if (mExportGeometry)
|
---|
| 3310 | exporter->ExportGeometry(objects);
|
---|
| 3311 |
|
---|
[482] | 3312 | //exporter->SetWireframe();
|
---|
| 3313 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
| 3314 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
| 3315 |
|
---|
[503] | 3316 | if (mExportRays)
|
---|
[440] | 3317 | {
|
---|
[503] | 3318 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 3319 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[440] | 3320 |
|
---|
[482] | 3321 | exporter->SetWireframe();
|
---|
[440] | 3322 |
|
---|
[482] | 3323 | //-- collect uniformly distributed rays
|
---|
| 3324 | VssRayContainer rays;
|
---|
[440] | 3325 |
|
---|
[482] | 3326 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 3327 | {
|
---|
| 3328 | if (RandomValue(0,1) < prob)
|
---|
| 3329 | rays.push_back(sampleRays[i]);
|
---|
[440] | 3330 | }
|
---|
[482] | 3331 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[440] | 3332 | }
|
---|
| 3333 |
|
---|
[482] | 3334 | delete exporter;
|
---|
| 3335 | }
|
---|
| 3336 |
|
---|
[726] | 3337 |
|
---|
[482] | 3338 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 3339 | const VssRayContainer &sampleRays)
|
---|
| 3340 | {
|
---|
| 3341 | if (!ViewCellsConstructed())
|
---|
| 3342 | return;
|
---|
[503] | 3343 |
|
---|
[482] | 3344 | //-- export single view cells
|
---|
| 3345 | for (int i = 0; i < 10; ++ i)
|
---|
[440] | 3346 | {
|
---|
[482] | 3347 | char s[64];
|
---|
| 3348 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
| 3349 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 3350 | const int idx =
|
---|
[482] | 3351 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
[440] | 3352 |
|
---|
[503] | 3353 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
[482] | 3354 |
|
---|
| 3355 | //-- export geometry
|
---|
| 3356 | Material m;
|
---|
| 3357 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
[503] | 3358 |
|
---|
[482] | 3359 | exporter->SetForcedMaterial(m);
|
---|
| 3360 | exporter->SetWireframe();
|
---|
| 3361 |
|
---|
[580] | 3362 | ExportViewCellGeometry(exporter, vc);
|
---|
[482] | 3363 |
|
---|
| 3364 | //-- export stored rays
|
---|
[580] | 3365 |
|
---|
[485] | 3366 | if (mExportRays)
|
---|
[440] | 3367 | {
|
---|
[580] | 3368 | ViewCellContainer leaves;
|
---|
| 3369 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[440] | 3370 |
|
---|
[580] | 3371 | ViewCellContainer::const_iterator it,
|
---|
| 3372 | it_end = leaves.end();
|
---|
| 3373 |
|
---|
| 3374 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[482] | 3375 | {
|
---|
[580] | 3376 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(*it);
|
---|
| 3377 | VspKdLeaf *leaf = vspKdVc->mLeaf;
|
---|
[482] | 3378 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
[440] | 3379 |
|
---|
[482] | 3380 | VssRayContainer vssRays;
|
---|
[483] | 3381 |
|
---|
| 3382 | VssRayContainer castRays;
|
---|
| 3383 | VssRayContainer initRays;
|
---|
| 3384 |
|
---|
[482] | 3385 | leaf->GetRays(vssRays);
|
---|
[440] | 3386 |
|
---|
[482] | 3387 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
[483] | 3388 | const float prop = 200.0f / (float)vssRays.size();
|
---|
[440] | 3389 |
|
---|
[482] | 3390 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
[483] | 3391 | {
|
---|
[485] | 3392 | if (Random(1) < prop)
|
---|
[483] | 3393 | if ((*it)->mTerminationObject == NULL)
|
---|
| 3394 | castRays.push_back(*it);
|
---|
[503] | 3395 | else
|
---|
[483] | 3396 | initRays.push_back(*it);
|
---|
| 3397 | }
|
---|
| 3398 |
|
---|
| 3399 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
| 3400 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
[482] | 3401 | }
|
---|
| 3402 | }
|
---|
[580] | 3403 |
|
---|
[482] | 3404 | //-- output PVS of view cell
|
---|
| 3405 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3406 | exporter->SetForcedMaterial(m);
|
---|
[440] | 3407 |
|
---|
[483] | 3408 | Intersectable::NewMail();
|
---|
| 3409 |
|
---|
[482] | 3410 | ObjectPvsMap::const_iterator it,
|
---|
| 3411 | it_end = vc->GetPvs().mEntries.end();
|
---|
| 3412 |
|
---|
| 3413 | exporter->SetFilled();
|
---|
| 3414 |
|
---|
[503] | 3415 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[482] | 3416 | {
|
---|
| 3417 | Intersectable *intersect = (*it).first;
|
---|
| 3418 |
|
---|
| 3419 | if (!intersect->Mailed())
|
---|
| 3420 | {
|
---|
| 3421 | Material m = RandomMaterial();
|
---|
| 3422 | exporter->SetForcedMaterial(m);
|
---|
| 3423 |
|
---|
| 3424 | exporter->ExportIntersectable(intersect);
|
---|
| 3425 | intersect->Mail();
|
---|
[503] | 3426 | }
|
---|
[482] | 3427 | }
|
---|
| 3428 |
|
---|
| 3429 | delete exporter;
|
---|
[440] | 3430 | }
|
---|
[462] | 3431 |
|
---|
| 3432 | //-- export final view cells
|
---|
[503] | 3433 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
| 3434 |
|
---|
[483] | 3435 |
|
---|
[508] | 3436 | ExportViewCellsForViz(exporter);
|
---|
[462] | 3437 |
|
---|
[503] | 3438 | if (mExportGeometry)
|
---|
[465] | 3439 | {
|
---|
| 3440 | exporter->SetFilled();
|
---|
[462] | 3441 | exporter->ExportGeometry(objects);
|
---|
[465] | 3442 | }
|
---|
[469] | 3443 |
|
---|
[503] | 3444 | if (mExportRays)
|
---|
[462] | 3445 | {
|
---|
[503] | 3446 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 3447 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[503] | 3448 |
|
---|
[462] | 3449 | exporter->SetWireframe();
|
---|
[503] | 3450 |
|
---|
[466] | 3451 | VssRayContainer rays;
|
---|
[503] | 3452 |
|
---|
[462] | 3453 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 3454 | {
|
---|
[466] | 3455 | if (RandomValue(0,1) < prob)
|
---|
| 3456 | rays.push_back(sampleRays[i]);
|
---|
[462] | 3457 | }
|
---|
[503] | 3458 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[462] | 3459 | }
|
---|
| 3460 |
|
---|
| 3461 | delete exporter;
|
---|
[440] | 3462 | }
|
---|
| 3463 |
|
---|
| 3464 | int VspKdViewCellsManager::GetType() const
|
---|
| 3465 | {
|
---|
| 3466 | return VSP_KD;
|
---|
| 3467 | }
|
---|
[442] | 3468 |
|
---|
[462] | 3469 |
|
---|
[469] | 3470 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3471 | const Vector3 &termination,
|
---|
| 3472 | ViewCellContainer &viewcells)
|
---|
[466] | 3473 | {
|
---|
[469] | 3474 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3475 | }
|
---|
| 3476 |
|
---|
[477] | 3477 |
|
---|
[482] | 3478 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 3479 | ViewCell *vc) const
|
---|
| 3480 | {
|
---|
| 3481 | if (mColorCode == 0) // Random color
|
---|
| 3482 | return;
|
---|
[503] | 3483 |
|
---|
[482] | 3484 | float importance = 0;
|
---|
[477] | 3485 |
|
---|
[482] | 3486 | switch (mColorCode)
|
---|
| 3487 | {
|
---|
| 3488 | case 1: // pvs
|
---|
| 3489 | {
|
---|
[801] | 3490 | importance = (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
[660] | 3491 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[482] | 3492 | }
|
---|
| 3493 | break;
|
---|
[580] | 3494 | case 2: // merged leaves
|
---|
[482] | 3495 | {
|
---|
[744] | 3496 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
[580] | 3497 | importance = (float)lSize /
|
---|
[660] | 3498 | (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 3499 | }
|
---|
| 3500 | break;
|
---|
[485] | 3501 | case 3: // merged tree depth difference
|
---|
[482] | 3502 | {
|
---|
[503] | 3503 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 3504 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 3505 | }
|
---|
| 3506 | break;
|
---|
| 3507 | default:
|
---|
| 3508 | break;
|
---|
| 3509 | }
|
---|
| 3510 |
|
---|
| 3511 | Material m;
|
---|
| 3512 | m.mDiffuseColor.b = 1.0f;
|
---|
| 3513 | m.mDiffuseColor.r = importance;
|
---|
| 3514 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 3515 | //Debug << "importance: " << importance << endl;
|
---|
| 3516 | exporter->SetForcedMaterial(m);
|
---|
| 3517 | }
|
---|
| 3518 |
|
---|
| 3519 |
|
---|
[580] | 3520 | void VspKdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3521 | ViewCell *vc,
|
---|
[660] | 3522 | const Plane3 *clipPlane) const
|
---|
[482] | 3523 | {
|
---|
| 3524 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
| 3525 |
|
---|
[486] | 3526 | Mesh m;
|
---|
[580] | 3527 |
|
---|
| 3528 | ViewCellContainer leaves;
|
---|
| 3529 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3530 |
|
---|
| 3531 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3532 |
|
---|
| 3533 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[486] | 3534 | {
|
---|
[580] | 3535 | VspKdLeaf *l = dynamic_cast<VspKdViewCell *>(*it)->mLeaf;
|
---|
[860] | 3536 | IncludeBoxInMesh(mVspKdTree->GetBBox(l), m);
|
---|
[486] | 3537 | }
|
---|
| 3538 |
|
---|
| 3539 | exporter->ExportMesh(&m);
|
---|
[482] | 3540 | }
|
---|
| 3541 |
|
---|
| 3542 |
|
---|
[503] | 3543 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3544 | {
|
---|
[551] | 3545 | //TODO
|
---|
[503] | 3546 | }
|
---|
[442] | 3547 |
|
---|
[574] | 3548 |
|
---|
[584] | 3549 | void VspKdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3550 | vector<MergeCandidate> &candidates)
|
---|
[580] | 3551 | {
|
---|
| 3552 | // TODO
|
---|
| 3553 | }
|
---|
[574] | 3554 |
|
---|
[580] | 3555 |
|
---|
[503] | 3556 | /**************************************************************************/
|
---|
| 3557 | /* VspBspViewCellsManager implementation */
|
---|
| 3558 | /**************************************************************************/
|
---|
[482] | 3559 |
|
---|
[503] | 3560 |
|
---|
[574] | 3561 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 3562 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 3563 | {
|
---|
[574] | 3564 | environment->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3565 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3566 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3567 | }
|
---|
| 3568 |
|
---|
[477] | 3569 |
|
---|
[475] | 3570 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3571 | {
|
---|
| 3572 | }
|
---|
| 3573 |
|
---|
[477] | 3574 |
|
---|
[471] | 3575 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3576 | {
|
---|
[551] | 3577 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3578 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3579 | else
|
---|
| 3580 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3581 | }
|
---|
| 3582 |
|
---|
[477] | 3583 |
|
---|
[480] | 3584 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3585 | {
|
---|
[581] | 3586 | // view cells tree constructed
|
---|
| 3587 | if (!ViewCellsTreeConstructed())
|
---|
| 3588 | {
|
---|
[590] | 3589 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3590 | }
|
---|
| 3591 | else
|
---|
[664] | 3592 | { // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3593 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3594 | }
|
---|
[480] | 3595 | }
|
---|
| 3596 |
|
---|
| 3597 |
|
---|
[442] | 3598 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3599 | {
|
---|
| 3600 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3601 | }
|
---|
| 3602 |
|
---|
[462] | 3603 |
|
---|
[442] | 3604 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3605 | {
|
---|
| 3606 | return new BspViewCell(mesh);
|
---|
| 3607 | }
|
---|
| 3608 |
|
---|
[569] | 3609 |
|
---|
[574] | 3610 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3611 | const VssRayContainer &rays)
|
---|
[442] | 3612 | {
|
---|
[710] | 3613 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3614 |
|
---|
[503] | 3615 | // if view cells were already constructed
|
---|
| 3616 | if (ViewCellsConstructed())
|
---|
| 3617 | return 0;
|
---|
[442] | 3618 |
|
---|
[503] | 3619 | int sampleContributions = 0;
|
---|
| 3620 |
|
---|
| 3621 | VssRayContainer sampleRays;
|
---|
| 3622 |
|
---|
[574] | 3623 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3624 |
|
---|
[469] | 3625 | VssRayContainer constructionRays;
|
---|
| 3626 | VssRayContainer savedRays;
|
---|
[442] | 3627 |
|
---|
[660] | 3628 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3629 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3630 |
|
---|
[574] | 3631 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3632 |
|
---|
[574] | 3633 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3634 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3635 |
|
---|
[564] | 3636 |
|
---|
[666] | 3637 | //TODO: remove
|
---|
[667] | 3638 | if (1)
|
---|
| 3639 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[666] | 3640 | else
|
---|
[667] | 3641 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
| 3642 |
|
---|
[490] | 3643 | // collapse invalid regions
|
---|
[491] | 3644 | cout << "collapsing invalid tree regions ... ";
|
---|
[495] | 3645 | long startTime = GetTime();
|
---|
[503] | 3646 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3647 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3648 | << " seconds" << endl;
|
---|
| 3649 |
|
---|
[495] | 3650 | cout << "finished" << endl;
|
---|
[503] | 3651 |
|
---|
[660] | 3652 | // -- stats
|
---|
| 3653 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3654 |
|
---|
[480] | 3655 | ResetViewCells();
|
---|
[660] | 3656 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3657 |
|
---|
[491] | 3658 |
|
---|
[495] | 3659 | startTime = GetTime();
|
---|
[503] | 3660 |
|
---|
[491] | 3661 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3662 |
|
---|
[469] | 3663 | // recast rest of rays
|
---|
[605] | 3664 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3665 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3666 |
|
---|
[491] | 3667 | cout << "finished" << endl;
|
---|
| 3668 |
|
---|
[503] | 3669 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3670 | << " secs" << endl;
|
---|
[442] | 3671 |
|
---|
[485] | 3672 | cout << "construction finished" << endl;
|
---|
[503] | 3673 |
|
---|
[719] | 3674 | // real meshes are contructed at this stage
|
---|
| 3675 | if (0)
|
---|
| 3676 | {
|
---|
| 3677 | cout << "finalizing view cells ... ";
|
---|
| 3678 | FinalizeViewCells(true);
|
---|
| 3679 | cout << "finished" << endl;
|
---|
| 3680 | }
|
---|
| 3681 |
|
---|
[442] | 3682 | return sampleContributions;
|
---|
| 3683 | }
|
---|
| 3684 |
|
---|
[489] | 3685 |
|
---|
[503] | 3686 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3687 | const ObjectContainer &objects)
|
---|
[475] | 3688 | {
|
---|
[442] | 3689 | int vcSize = 0;
|
---|
| 3690 | int pvsSize = 0;
|
---|
| 3691 |
|
---|
[650] | 3692 | //-- merge view cells
|
---|
| 3693 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3694 | long startTime = GetTime();
|
---|
| 3695 |
|
---|
| 3696 |
|
---|
[597] | 3697 | if (mMergeViewCells)
|
---|
| 3698 | {
|
---|
| 3699 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3700 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3701 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3702 | }
|
---|
| 3703 | else
|
---|
| 3704 | {
|
---|
[710] | 3705 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3706 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3707 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3708 |
|
---|
| 3709 | // compute pvs
|
---|
| 3710 | ObjectPvs pvs;
|
---|
| 3711 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3712 | }
|
---|
[442] | 3713 |
|
---|
[666] | 3714 | if (1)
|
---|
| 3715 | {
|
---|
| 3716 | char mstats[100];
|
---|
[752] | 3717 | ObjectPvs pvs;
|
---|
| 3718 |
|
---|
[666] | 3719 | environment->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
| 3720 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3721 | }
|
---|
[485] | 3722 |
|
---|
[650] | 3723 | //-- stats and visualizations
|
---|
| 3724 | cout << "finished merging" << endl;
|
---|
| 3725 | cout << "merged view cells in "
|
---|
| 3726 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3727 |
|
---|
[650] | 3728 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3729 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3730 |
|
---|
| 3731 |
|
---|
[600] | 3732 | int savedColorCode = mColorCode;
|
---|
| 3733 |
|
---|
[660] | 3734 | // get currently active view cell set
|
---|
| 3735 | ResetViewCells();
|
---|
| 3736 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3737 |
|
---|
[485] | 3738 | //BspLeaf::NewMail();
|
---|
[667] | 3739 | if (1) // export merged view cells
|
---|
[483] | 3740 | {
|
---|
[600] | 3741 | mColorCode = 0;
|
---|
[744] | 3742 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3743 |
|
---|
[485] | 3744 | cout << "exporting view cells after merge ... ";
|
---|
| 3745 |
|
---|
| 3746 | if (exporter)
|
---|
[483] | 3747 | {
|
---|
[600] | 3748 | if (0)
|
---|
| 3749 | exporter->SetWireframe();
|
---|
| 3750 | else
|
---|
| 3751 | exporter->SetFilled();
|
---|
| 3752 |
|
---|
| 3753 | ExportViewCellsForViz(exporter);
|
---|
| 3754 |
|
---|
[485] | 3755 | if (mExportGeometry)
|
---|
[483] | 3756 | {
|
---|
[485] | 3757 | Material m;
|
---|
| 3758 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3759 | exporter->SetForcedMaterial(m);
|
---|
| 3760 | exporter->SetFilled();
|
---|
[442] | 3761 |
|
---|
[485] | 3762 | exporter->ExportGeometry(objects);
|
---|
[442] | 3763 | }
|
---|
[485] | 3764 |
|
---|
[600] | 3765 | delete exporter;
|
---|
| 3766 | }
|
---|
| 3767 | cout << "finished" << endl;
|
---|
| 3768 | }
|
---|
| 3769 |
|
---|
[667] | 3770 | if (1) // export merged view cells using pvs coding
|
---|
[600] | 3771 | {
|
---|
| 3772 | mColorCode = 1;
|
---|
| 3773 |
|
---|
[744] | 3774 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 3775 |
|
---|
| 3776 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3777 |
|
---|
| 3778 | if (exporter)
|
---|
| 3779 | {
|
---|
[598] | 3780 | if (0)
|
---|
| 3781 | exporter->SetWireframe();
|
---|
| 3782 | else
|
---|
| 3783 | exporter->SetFilled();
|
---|
| 3784 |
|
---|
| 3785 | ExportViewCellsForViz(exporter);
|
---|
| 3786 |
|
---|
[600] | 3787 | if (mExportGeometry)
|
---|
| 3788 | {
|
---|
| 3789 | Material m;
|
---|
| 3790 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3791 | exporter->SetForcedMaterial(m);
|
---|
| 3792 | exporter->SetFilled();
|
---|
| 3793 |
|
---|
| 3794 | exporter->ExportGeometry(objects);
|
---|
| 3795 | }
|
---|
| 3796 |
|
---|
[485] | 3797 | delete exporter;
|
---|
[442] | 3798 | }
|
---|
[485] | 3799 | cout << "finished" << endl;
|
---|
[442] | 3800 | }
|
---|
[600] | 3801 |
|
---|
| 3802 | mColorCode = savedColorCode;
|
---|
| 3803 |
|
---|
[503] | 3804 | }
|
---|
[475] | 3805 |
|
---|
[503] | 3806 |
|
---|
[609] | 3807 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3808 | {
|
---|
[609] | 3809 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3810 | }
|
---|
| 3811 |
|
---|
| 3812 |
|
---|
[609] | 3813 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3814 | {
|
---|
| 3815 | if (!viewCell->IsLeaf())
|
---|
| 3816 | {
|
---|
| 3817 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3818 |
|
---|
[609] | 3819 | return bspVc->mLeaf;
|
---|
| 3820 | }
|
---|
[607] | 3821 | else
|
---|
| 3822 | {
|
---|
| 3823 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3824 |
|
---|
| 3825 | // cannot be node of binary tree
|
---|
| 3826 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3827 | return NULL;
|
---|
[607] | 3828 |
|
---|
| 3829 | ViewCell *left = interior->mChildren[0];
|
---|
| 3830 | ViewCell *right = interior->mChildren[1];
|
---|
| 3831 |
|
---|
[609] | 3832 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3833 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3834 |
|
---|
[609] | 3835 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3836 | {
|
---|
[609] | 3837 | return leftNode->GetParent();
|
---|
[607] | 3838 | }
|
---|
[609] | 3839 | }
|
---|
[607] | 3840 |
|
---|
[609] | 3841 | return NULL;
|
---|
[607] | 3842 | }
|
---|
| 3843 |
|
---|
| 3844 |
|
---|
[564] | 3845 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3846 | const ObjectContainer &objects)
|
---|
[503] | 3847 | {
|
---|
[485] | 3848 | Debug << "render time before refine:" << endl;
|
---|
| 3849 | mRenderer->RenderScene();
|
---|
[503] | 3850 | SimulationStatistics ss;
|
---|
[485] | 3851 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3852 | Debug << ss << endl;
|
---|
| 3853 |
|
---|
[489] | 3854 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3855 | long startTime = GetTime();
|
---|
[485] | 3856 |
|
---|
| 3857 | // refining the merged view cells
|
---|
[580] | 3858 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3859 |
|
---|
[442] | 3860 | //-- stats and visualizations
|
---|
| 3861 | cout << "finished" << endl;
|
---|
[485] | 3862 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3863 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3864 |
|
---|
[485] | 3865 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3866 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3867 | }
|
---|
[495] | 3868 |
|
---|
[517] | 3869 |
|
---|
[503] | 3870 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3871 | const VssRayContainer &rays)
|
---|
[840] | 3872 | {
|
---|
[503] | 3873 | if (!ViewCellsConstructed())
|
---|
| 3874 | {
|
---|
[517] | 3875 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3876 | return 0;
|
---|
| 3877 | }
|
---|
[520] | 3878 |
|
---|
[564] | 3879 |
|
---|
[609] | 3880 | // view cells already finished before post processing step
|
---|
| 3881 | // (i.e. because they were loaded)
|
---|
[520] | 3882 | if (mViewCellsFinished)
|
---|
[542] | 3883 | {
|
---|
[551] | 3884 | FinalizeViewCells(true);
|
---|
[542] | 3885 | EvaluateViewCellsStats();
|
---|
[577] | 3886 |
|
---|
[517] | 3887 | return 0;
|
---|
[542] | 3888 | }
|
---|
[448] | 3889 |
|
---|
[710] | 3890 | // check if new view cells turned invalid
|
---|
| 3891 | int minPvs, maxPvs;
|
---|
[564] | 3892 |
|
---|
[710] | 3893 | if (0)
|
---|
| 3894 | {
|
---|
| 3895 | minPvs = mMinPvsSize;
|
---|
| 3896 | maxPvs = mMaxPvsSize;
|
---|
| 3897 | }
|
---|
| 3898 | else
|
---|
| 3899 | {
|
---|
| 3900 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3901 | maxPvs = mMaxPvsSize;
|
---|
| 3902 | }
|
---|
[720] | 3903 |
|
---|
[710] | 3904 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3905 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3906 |
|
---|
| 3907 | SetValidity(minPvs, maxPvs);
|
---|
| 3908 |
|
---|
[574] | 3909 | // update valid view space according to valid view cells
|
---|
[720] | 3910 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3911 |
|
---|
[720] | 3912 | // area has to be recomputed
|
---|
[574] | 3913 | mTotalAreaValid = false;
|
---|
[517] | 3914 | VssRayContainer postProcessRays;
|
---|
[605] | 3915 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3916 |
|
---|
[517] | 3917 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3918 |
|
---|
[517] | 3919 |
|
---|
[552] | 3920 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3921 | // and to correct the rendering statistics
|
---|
[719] | 3922 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3923 |
|
---|
[597] | 3924 | //-- merge the individual view cells
|
---|
| 3925 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3926 |
|
---|
[720] | 3927 |
|
---|
| 3928 | // only for debugging purpose: test if the subdivision is valid
|
---|
[693] | 3929 | TestSubdivision();
|
---|
| 3930 |
|
---|
[597] | 3931 | //-- refines the merged view cells
|
---|
[720] | 3932 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3933 |
|
---|
[719] | 3934 |
|
---|
[660] | 3935 | //-- render simulation after merge + refine
|
---|
[605] | 3936 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3937 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3938 | SimulationStatistics ss;
|
---|
| 3939 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3940 |
|
---|
[580] | 3941 |
|
---|
[605] | 3942 | cout << " finished" << endl;
|
---|
| 3943 | cout << ss << endl;
|
---|
| 3944 | Debug << ss << endl;
|
---|
[600] | 3945 |
|
---|
| 3946 |
|
---|
| 3947 | //-- compression
|
---|
| 3948 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3949 | {
|
---|
| 3950 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3951 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3952 |
|
---|
[752] | 3953 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3954 |
|
---|
| 3955 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3956 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3957 | }
|
---|
| 3958 |
|
---|
[660] | 3959 |
|
---|
[517] | 3960 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 3961 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 3962 |
|
---|
[574] | 3963 | // recompute view cell list and statistics
|
---|
[520] | 3964 | ResetViewCells();
|
---|
| 3965 |
|
---|
[719] | 3966 | // compute final meshes and volume / area
|
---|
| 3967 | if (1) FinalizeViewCells(true);
|
---|
[517] | 3968 |
|
---|
[508] | 3969 | // write view cells to disc
|
---|
| 3970 | if (mExportViewCells)
|
---|
| 3971 | {
|
---|
[840] | 3972 | char filename[100];
|
---|
| 3973 | environment->GetStringValue("ViewCells.filename", filename);
|
---|
[871] | 3974 | ExportViewCells(filename, mExportPvs);
|
---|
[840] | 3975 | }
|
---|
[517] | 3976 |
|
---|
[840] | 3977 |
|
---|
| 3978 | // export bounding boxes
|
---|
| 3979 | if (mExportBboxesForPvs)
|
---|
| 3980 | {
|
---|
| 3981 | char filename[100];
|
---|
| 3982 | environment->GetStringValue("ViewCells.boxesFilename", filename);
|
---|
[850] | 3983 |
|
---|
[840] | 3984 | ExportBoundingBoxes(filename, objects);
|
---|
[850] | 3985 | /*
|
---|
| 3986 | IndexedBoundingBoxContainer boxes;
|
---|
| 3987 | LoadBoundingBoxes(filename, boxes);
|
---|
| 3988 |
|
---|
| 3989 | IndexedBoundingBoxContainer::const_iterator it, it_end = boxes.end();
|
---|
| 3990 |
|
---|
| 3991 | for (it = boxes.begin(); it != it_end; ++ it)
|
---|
| 3992 | {
|
---|
| 3993 | IndexedBoundingBox ibox = *it;
|
---|
| 3994 | AxisAlignedBox3 box = ibox.second;
|
---|
| 3995 |
|
---|
| 3996 | Debug << ibox.first << " "
|
---|
| 3997 | << box.Min().x << " "
|
---|
| 3998 | << box.Min().y << " "
|
---|
| 3999 | << box.Min().z << " "
|
---|
| 4000 | << box.Max().x << " "
|
---|
| 4001 | << box.Max().y << " "
|
---|
| 4002 | << box.Max().z << endl;
|
---|
| 4003 | }*/
|
---|
[508] | 4004 | }
|
---|
[503] | 4005 |
|
---|
| 4006 | return 0;
|
---|
[442] | 4007 | }
|
---|
| 4008 |
|
---|
[490] | 4009 |
|
---|
[442] | 4010 | int VspBspViewCellsManager::GetType() const
|
---|
| 4011 | {
|
---|
| 4012 | return VSP_BSP;
|
---|
| 4013 | }
|
---|
| 4014 |
|
---|
| 4015 |
|
---|
[650] | 4016 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4017 | {
|
---|
[752] | 4018 | // terminate recursion
|
---|
[650] | 4019 | if (root->IsLeaf())
|
---|
| 4020 | {
|
---|
[752] | 4021 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4022 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4023 | return leaf->GetViewCell();
|
---|
[650] | 4024 | }
|
---|
| 4025 |
|
---|
[752] | 4026 |
|
---|
[650] | 4027 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4028 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4029 |
|
---|
[752] | 4030 | // evaluate merge cost for priority traversal
|
---|
[650] | 4031 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4032 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4033 |
|
---|
[650] | 4034 | float volume = 0;
|
---|
| 4035 |
|
---|
| 4036 | BspNode *front = interior->GetFront();
|
---|
| 4037 | BspNode *back = interior->GetBack();
|
---|
[649] | 4038 |
|
---|
[752] | 4039 |
|
---|
| 4040 | ObjectPvs frontPvs, backPvs;
|
---|
| 4041 |
|
---|
| 4042 | //-- recursivly compute child hierarchies
|
---|
[650] | 4043 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4044 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4045 |
|
---|
[752] | 4046 |
|
---|
| 4047 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4048 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4049 |
|
---|
| 4050 | volume += backVc->GetVolume();
|
---|
| 4051 | volume += frontVc->GetVolume();
|
---|
| 4052 |
|
---|
| 4053 | viewCellInterior->SetVolume(volume);
|
---|
| 4054 |
|
---|
| 4055 | return viewCellInterior;
|
---|
[609] | 4056 | }
|
---|
| 4057 |
|
---|
| 4058 |
|
---|
[752] | 4059 |
|
---|
| 4060 | void VspBspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 4061 | {
|
---|
| 4062 | // terminate traversal
|
---|
| 4063 | if (root->IsLeaf())
|
---|
| 4064 | {
|
---|
| 4065 | pvs = root->GetPvs();
|
---|
| 4066 |
|
---|
[801] | 4067 | root->mPvsSize = root->GetPvs().GetSize();
|
---|
[752] | 4068 | root->mPvsSizeValid = true;
|
---|
| 4069 |
|
---|
| 4070 | return;
|
---|
| 4071 | }
|
---|
| 4072 |
|
---|
[801] | 4073 | //-- interior node => propagate pvs up
|
---|
[752] | 4074 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[801] | 4075 | interior->GetPvs().Clear();
|
---|
| 4076 | pvs.Clear();
|
---|
| 4077 | vector<ObjectPvs> pvsList;
|
---|
| 4078 |
|
---|
[752] | 4079 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 4080 |
|
---|
| 4081 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 4082 | {
|
---|
| 4083 | ObjectPvs objPvs;
|
---|
| 4084 |
|
---|
| 4085 | //-- recursivly compute child pvss
|
---|
| 4086 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 4087 |
|
---|
| 4088 | // store pvs in vector
|
---|
| 4089 | pvsList.push_back(objPvs);
|
---|
| 4090 | }
|
---|
| 4091 |
|
---|
| 4092 | #if 1
|
---|
[801] | 4093 |
|
---|
[752] | 4094 | Intersectable::NewMail();
|
---|
| 4095 |
|
---|
| 4096 | //-- faster way of computing pvs:
|
---|
| 4097 | // construct merged pvs by adding
|
---|
| 4098 | // and only those of the next pvs which were not mailed.
|
---|
| 4099 | // note: sumpdf is not correct!!
|
---|
| 4100 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 4101 |
|
---|
| 4102 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 4103 | {
|
---|
| 4104 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 4105 |
|
---|
| 4106 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 4107 | {
|
---|
| 4108 | Intersectable *intersect = (*pit).first;
|
---|
| 4109 |
|
---|
| 4110 | if (!intersect->Mailed())
|
---|
| 4111 | {
|
---|
| 4112 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 4113 | intersect->Mail();
|
---|
| 4114 | }
|
---|
| 4115 | }
|
---|
| 4116 | }
|
---|
| 4117 |
|
---|
| 4118 | // store pvs in this node
|
---|
| 4119 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 4120 | {
|
---|
| 4121 | interior->mPvs = pvs;
|
---|
| 4122 | }
|
---|
| 4123 |
|
---|
| 4124 | // set new pvs size
|
---|
| 4125 | interior->mPvsSize = pvs.GetSize();
|
---|
| 4126 | interior->mPvsSizeValid = true;
|
---|
| 4127 |
|
---|
| 4128 | #else
|
---|
[801] | 4129 |
|
---|
[752] | 4130 | // really merge cells: slow put sumpdf is correct
|
---|
| 4131 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 4132 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 4133 | #endif
|
---|
| 4134 |
|
---|
| 4135 | }
|
---|
| 4136 |
|
---|
| 4137 |
|
---|
[490] | 4138 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4139 | {
|
---|
| 4140 | if (!ViewCellsConstructed())
|
---|
| 4141 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4142 |
|
---|
| 4143 | // TODO: set reasonable limit
|
---|
| 4144 | const int limit = 20;
|
---|
| 4145 |
|
---|
| 4146 | for (int i = 0; i < limit; ++ i)
|
---|
| 4147 | {
|
---|
[542] | 4148 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4149 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4150 | {
|
---|
| 4151 | return true;
|
---|
| 4152 | }
|
---|
| 4153 | }
|
---|
| 4154 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4155 | return false;
|
---|
| 4156 | }
|
---|
| 4157 |
|
---|
| 4158 |
|
---|
| 4159 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4160 | {
|
---|
[569] | 4161 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4162 | // validy update in preprocessor for all managers)
|
---|
| 4163 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4164 |
|
---|
[569] | 4165 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4166 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4167 | }
|
---|
| 4168 |
|
---|
| 4169 |
|
---|
[442] | 4170 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4171 | const VssRayContainer &sampleRays)
|
---|
[442] | 4172 | {
|
---|
| 4173 | if (!ViewCellsConstructed())
|
---|
| 4174 | return;
|
---|
| 4175 |
|
---|
[485] | 4176 | VssRayContainer visRays;
|
---|
| 4177 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 4178 |
|
---|
[600] | 4179 |
|
---|
[651] | 4180 | if (1) // export view cells
|
---|
[612] | 4181 | { // hack pvs
|
---|
[600] | 4182 | int savedColorCode = mColorCode;
|
---|
[801] | 4183 | mColorCode = 1;
|
---|
| 4184 |
|
---|
[822] | 4185 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 4186 |
|
---|
[442] | 4187 | if (exporter)
|
---|
| 4188 | {
|
---|
[580] | 4189 | cout << "exporting view cells after post process ... ";
|
---|
| 4190 |
|
---|
[600] | 4191 | if (0)
|
---|
[542] | 4192 | {
|
---|
| 4193 | exporter->SetWireframe();
|
---|
| 4194 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4195 | exporter->SetFilled();
|
---|
| 4196 | }
|
---|
| 4197 |
|
---|
[485] | 4198 | if (mExportGeometry)
|
---|
[542] | 4199 | {
|
---|
[485] | 4200 | exporter->ExportGeometry(objects);
|
---|
[542] | 4201 | }
|
---|
[489] | 4202 |
|
---|
| 4203 | // export rays
|
---|
[490] | 4204 | if (mExportRays)
|
---|
[489] | 4205 | {
|
---|
[490] | 4206 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 4207 | }
|
---|
[564] | 4208 |
|
---|
[801] | 4209 | //exporter->SetFilled();
|
---|
| 4210 | bool b = mUseClipPlaneForViz;
|
---|
| 4211 | mUseClipPlaneForViz = false;
|
---|
[508] | 4212 | ExportViewCellsForViz(exporter);
|
---|
[801] | 4213 | mUseClipPlaneForViz = b;
|
---|
| 4214 |
|
---|
[442] | 4215 | delete exporter;
|
---|
[580] | 4216 | cout << "finished" << endl;
|
---|
[442] | 4217 | }
|
---|
[600] | 4218 |
|
---|
| 4219 | mColorCode = savedColorCode;
|
---|
[557] | 4220 | }
|
---|
[503] | 4221 |
|
---|
[600] | 4222 | if (0)
|
---|
[577] | 4223 | {
|
---|
| 4224 | cout << "exporting depth map ... ";
|
---|
| 4225 |
|
---|
| 4226 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4227 | if (exporter)
|
---|
| 4228 | {
|
---|
| 4229 | if (1)
|
---|
| 4230 | {
|
---|
| 4231 | exporter->SetWireframe();
|
---|
| 4232 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4233 | exporter->SetFilled();
|
---|
| 4234 | }
|
---|
| 4235 |
|
---|
| 4236 | if (mExportGeometry)
|
---|
| 4237 | {
|
---|
| 4238 | exporter->ExportGeometry(objects);
|
---|
| 4239 | }
|
---|
| 4240 |
|
---|
| 4241 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
| 4242 |
|
---|
| 4243 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4244 |
|
---|
| 4245 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4246 | {
|
---|
[582] | 4247 | ViewCell *vc = *vit;
|
---|
[577] | 4248 |
|
---|
[580] | 4249 | ViewCellContainer leaves;
|
---|
| 4250 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4251 |
|
---|
[580] | 4252 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4253 |
|
---|
| 4254 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4255 | {
|
---|
[580] | 4256 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4257 |
|
---|
| 4258 | Material m;
|
---|
| 4259 |
|
---|
| 4260 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4261 | m.mDiffuseColor.r = relDepth;
|
---|
| 4262 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4263 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4264 |
|
---|
| 4265 | exporter->SetForcedMaterial(m);
|
---|
| 4266 |
|
---|
| 4267 |
|
---|
| 4268 | BspNodeGeometry geom;
|
---|
| 4269 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4270 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4271 | }
|
---|
| 4272 | }
|
---|
| 4273 |
|
---|
| 4274 | delete exporter;
|
---|
| 4275 | }
|
---|
| 4276 |
|
---|
| 4277 |
|
---|
| 4278 | cout << "finished" << endl;
|
---|
| 4279 | }
|
---|
| 4280 |
|
---|
[442] | 4281 | //-- visualization of the BSP splits
|
---|
| 4282 | bool exportSplits = false;
|
---|
[489] | 4283 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4284 |
|
---|
[442] | 4285 | if (exportSplits)
|
---|
| 4286 | {
|
---|
| 4287 | cout << "exporting splits ... ";
|
---|
[485] | 4288 | ExportSplits(objects, visRays);
|
---|
[442] | 4289 | cout << "finished" << endl;
|
---|
| 4290 | }
|
---|
| 4291 |
|
---|
[542] | 4292 | //-- export single view cells
|
---|
[485] | 4293 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4294 | }
|
---|
| 4295 |
|
---|
[503] | 4296 |
|
---|
[485] | 4297 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4298 | const VssRayContainer &rays)
|
---|
[442] | 4299 | {
|
---|
| 4300 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4301 |
|
---|
[503] | 4302 | if (exporter)
|
---|
| 4303 | {
|
---|
| 4304 | Material m;
|
---|
[442] | 4305 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4306 | exporter->SetForcedMaterial(m);
|
---|
| 4307 | exporter->SetWireframe();
|
---|
[503] | 4308 |
|
---|
[448] | 4309 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4310 |
|
---|
| 4311 | // take forced material, else big scenes cannot be viewed
|
---|
| 4312 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4313 | exporter->SetForcedMaterial(m);
|
---|
| 4314 | exporter->SetFilled();
|
---|
| 4315 |
|
---|
| 4316 | exporter->ResetForcedMaterial();
|
---|
[503] | 4317 |
|
---|
[442] | 4318 | // export rays
|
---|
[485] | 4319 | if (mExportRays)
|
---|
| 4320 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4321 |
|
---|
[485] | 4322 | if (mExportGeometry)
|
---|
[442] | 4323 | exporter->ExportGeometry(objects);
|
---|
| 4324 |
|
---|
| 4325 | delete exporter;
|
---|
| 4326 | }
|
---|
| 4327 | }
|
---|
| 4328 |
|
---|
[503] | 4329 |
|
---|
[485] | 4330 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4331 | const VssRayContainer &rays)
|
---|
[442] | 4332 | {
|
---|
[639] | 4333 | const int leafOut = 20;
|
---|
[503] | 4334 |
|
---|
[442] | 4335 | ViewCell::NewMail();
|
---|
[503] | 4336 |
|
---|
[639] | 4337 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4338 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4339 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4340 |
|
---|
[694] | 4341 | const bool sortViewCells = true;
|
---|
[801] | 4342 |
|
---|
[694] | 4343 |
|
---|
[485] | 4344 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4345 | if (sortViewCells)
|
---|
[801] | 4346 | {
|
---|
| 4347 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
| 4348 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4349 | }
|
---|
| 4350 |
|
---|
[503] | 4351 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4352 |
|
---|
[639] | 4353 | int raysOut = 0;
|
---|
[587] | 4354 |
|
---|
[485] | 4355 | //-- some rays for output
|
---|
[478] | 4356 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4357 | {
|
---|
[478] | 4358 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4359 |
|
---|
[582] | 4360 | ViewCell *vc;
|
---|
[574] | 4361 |
|
---|
[694] | 4362 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4363 | vc = mViewCells[i];
|
---|
[574] | 4364 | else
|
---|
[639] | 4365 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4366 |
|
---|
[801] | 4367 | ObjectPvs pvs;
|
---|
| 4368 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4369 |
|
---|
[639] | 4370 | //bspLeaves[j]->Mail();
|
---|
| 4371 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
| 4372 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4373 |
|
---|
| 4374 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 4375 |
|
---|
[801] | 4376 | //-- export the sample rays
|
---|
[639] | 4377 | if (1 || mExportRays)
|
---|
[442] | 4378 | {
|
---|
[694] | 4379 | // output rays stored with the view cells during subdivision
|
---|
[643] | 4380 | if (0)
|
---|
[442] | 4381 | {
|
---|
[639] | 4382 | VssRayContainer vcRays;
|
---|
| 4383 | VssRayContainer collectRays;
|
---|
| 4384 |
|
---|
| 4385 | raysOut = min((int)rays.size(), 100);
|
---|
| 4386 |
|
---|
| 4387 | // collect intial view cells
|
---|
| 4388 | ViewCellContainer leaves;
|
---|
| 4389 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4390 |
|
---|
| 4391 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4392 |
|
---|
| 4393 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4394 | {
|
---|
[639] | 4395 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4396 |
|
---|
| 4397 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4398 |
|
---|
[639] | 4399 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4400 | {
|
---|
| 4401 | collectRays.push_back(*rit);
|
---|
| 4402 | }
|
---|
[574] | 4403 | }
|
---|
[639] | 4404 |
|
---|
| 4405 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4406 |
|
---|
| 4407 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4408 | {
|
---|
| 4409 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4410 |
|
---|
| 4411 | if (p < raysOut)
|
---|
| 4412 | vcRays.push_back(*rit);
|
---|
| 4413 | }
|
---|
[801] | 4414 |
|
---|
[639] | 4415 | //-- export rays piercing this view cell
|
---|
| 4416 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4417 | }
|
---|
[651] | 4418 |
|
---|
[694] | 4419 | // associate new rays with output view cell
|
---|
[643] | 4420 | if (1)
|
---|
[639] | 4421 | {
|
---|
| 4422 | VssRayContainer vcRays;
|
---|
| 4423 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
[801] | 4424 |
|
---|
[639] | 4425 | // check whether we can add the current ray to the output rays
|
---|
| 4426 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4427 | {
|
---|
| 4428 | VssRay *ray = rays[k];
|
---|
| 4429 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4430 | {
|
---|
| 4431 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4432 |
|
---|
| 4433 | if (rayvc == vc)
|
---|
| 4434 | vcRays.push_back(ray);
|
---|
| 4435 | }
|
---|
| 4436 | }
|
---|
| 4437 |
|
---|
| 4438 | //-- export rays piercing this view cell
|
---|
| 4439 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4440 | }
|
---|
| 4441 |
|
---|
[442] | 4442 | }
|
---|
[639] | 4443 |
|
---|
[574] | 4444 |
|
---|
[478] | 4445 | exporter->SetWireframe();
|
---|
[442] | 4446 |
|
---|
[478] | 4447 | Material m;//= RandomMaterial();
|
---|
| 4448 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4449 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4450 |
|
---|
[580] | 4451 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 4452 |
|
---|
| 4453 | exporter->SetFilled();
|
---|
[503] | 4454 |
|
---|
[801] | 4455 | //-- export pvs
|
---|
[574] | 4456 | if (1)
|
---|
| 4457 | {
|
---|
[639] | 4458 | ObjectPvsMap::const_iterator oit,
|
---|
[801] | 4459 | oit_end = pvs.mEntries.end();
|
---|
[483] | 4460 |
|
---|
[801] | 4461 | Intersectable::NewMail();
|
---|
[580] | 4462 |
|
---|
[639] | 4463 | // output PVS of view cell
|
---|
[801] | 4464 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4465 | {
|
---|
| 4466 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4467 |
|
---|
[639] | 4468 | if (!intersect->Mailed())
|
---|
| 4469 | {
|
---|
[643] | 4470 | m = RandomMaterial();
|
---|
| 4471 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4472 |
|
---|
[639] | 4473 | exporter->ExportIntersectable(intersect);
|
---|
| 4474 | intersect->Mail();
|
---|
| 4475 | }
|
---|
[503] | 4476 | }
|
---|
[442] | 4477 | }
|
---|
[801] | 4478 |
|
---|
| 4479 | if (0)
|
---|
| 4480 | { // export scene geometry
|
---|
[643] | 4481 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4482 | exporter->SetForcedMaterial(m);
|
---|
| 4483 |
|
---|
[639] | 4484 | exporter->ExportGeometry(objects);
|
---|
| 4485 | }
|
---|
[503] | 4486 |
|
---|
[478] | 4487 | DEL_PTR(exporter);
|
---|
| 4488 | cout << "finished" << endl;
|
---|
[442] | 4489 | }
|
---|
[475] | 4490 |
|
---|
| 4491 | Debug << endl;
|
---|
[442] | 4492 | }
|
---|
| 4493 |
|
---|
| 4494 |
|
---|
[697] | 4495 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const
|
---|
| 4496 | {
|
---|
| 4497 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 4498 | }
|
---|
| 4499 |
|
---|
| 4500 |
|
---|
[469] | 4501 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4502 | const Vector3 &termination,
|
---|
| 4503 | ViewCellContainer &viewcells)
|
---|
[466] | 4504 | {
|
---|
[469] | 4505 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 4506 | }
|
---|
[482] | 4507 |
|
---|
| 4508 |
|
---|
[503] | 4509 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 4510 | ViewCell *vc) const
|
---|
| 4511 | {
|
---|
[564] | 4512 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[503] | 4513 |
|
---|
[482] | 4514 | float importance = 0;
|
---|
[564] | 4515 | static Material m;
|
---|
| 4516 |
|
---|
[482] | 4517 | switch (mColorCode)
|
---|
| 4518 | {
|
---|
[564] | 4519 | case 0: // Random
|
---|
| 4520 | {
|
---|
| 4521 | if (vcValid)
|
---|
| 4522 | {
|
---|
[598] | 4523 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 4524 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 4525 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
[564] | 4526 | }
|
---|
| 4527 | else
|
---|
| 4528 | {
|
---|
| 4529 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4530 | m.mDiffuseColor.g = 1.0f;
|
---|
| 4531 | m.mDiffuseColor.b = 0.0f;
|
---|
| 4532 | }
|
---|
[591] | 4533 |
|
---|
| 4534 | exporter->SetForcedMaterial(m);
|
---|
| 4535 | return;
|
---|
[564] | 4536 | }
|
---|
[591] | 4537 |
|
---|
[482] | 4538 | case 1: // pvs
|
---|
| 4539 | {
|
---|
[827] | 4540 | importance = (float)mViewCellsTree->GetPvsSize(vc) / (float)mCurrentViewCellsStats.maxPvs;
|
---|
[482] | 4541 | }
|
---|
| 4542 | break;
|
---|
| 4543 | case 2: // merges
|
---|
| 4544 | {
|
---|
[736] | 4545 | int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
[660] | 4546 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 4547 | }
|
---|
| 4548 | break;
|
---|
| 4549 | case 3: // merge tree differene
|
---|
| 4550 | {
|
---|
[503] | 4551 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 4552 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
[547] | 4553 |
|
---|
[482] | 4554 | }
|
---|
| 4555 | break;
|
---|
| 4556 | default:
|
---|
| 4557 | break;
|
---|
| 4558 | }
|
---|
| 4559 |
|
---|
[564] | 4560 | // special color code for invalid view cells
|
---|
[482] | 4561 | m.mDiffuseColor.r = importance;
|
---|
| 4562 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[564] | 4563 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[547] | 4564 |
|
---|
[482] | 4565 | //Debug << "importance: " << importance << endl;
|
---|
| 4566 | exporter->SetForcedMaterial(m);
|
---|
| 4567 | }
|
---|
| 4568 |
|
---|
| 4569 |
|
---|
[580] | 4570 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4571 | ViewCell *vc,
|
---|
[660] | 4572 | const Plane3 *clipPlane) const
|
---|
[482] | 4573 | {
|
---|
[660] | 4574 | if (clipPlane)
|
---|
[591] | 4575 | {
|
---|
| 4576 | ViewCellContainer leaves;
|
---|
| 4577 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4578 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4579 |
|
---|
| 4580 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4581 | {
|
---|
| 4582 | BspNodeGeometry geom;
|
---|
| 4583 |
|
---|
| 4584 | BspNodeGeometry front;
|
---|
| 4585 | BspNodeGeometry back;
|
---|
| 4586 |
|
---|
| 4587 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4588 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4589 |
|
---|
[710] | 4590 | const float eps = 0.00000001f;
|
---|
| 4591 | const int cf = geom.Side(*clipPlane, eps);
|
---|
[682] | 4592 |
|
---|
[710] | 4593 | if (cf == -1)
|
---|
[682] | 4594 | {
|
---|
| 4595 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4596 | }
|
---|
[710] | 4597 | else if (cf == 0)
|
---|
[684] | 4598 | {
|
---|
[682] | 4599 | geom.SplitGeometry(front,
|
---|
| 4600 | back,
|
---|
| 4601 | *clipPlane,
|
---|
| 4602 | mViewSpaceBox,
|
---|
[710] | 4603 | eps);
|
---|
[682] | 4604 |
|
---|
[694] | 4605 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4606 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[801] | 4607 |
|
---|
[683] | 4608 | if (back.Valid())
|
---|
| 4609 | {
|
---|
[682] | 4610 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4611 | }
|
---|
[684] | 4612 | }
|
---|
[591] | 4613 | }
|
---|
| 4614 | }
|
---|
| 4615 | else
|
---|
| 4616 | {
|
---|
[801] | 4617 | // export mesh if available
|
---|
| 4618 | /* if (vc->GetMesh())
|
---|
| 4619 | {
|
---|
| 4620 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4621 | }
|
---|
| 4622 | else
|
---|
| 4623 | {*/
|
---|
| 4624 | BspNodeGeometry geom;
|
---|
| 4625 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4626 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4627 | //}
|
---|
[591] | 4628 | }
|
---|
[482] | 4629 | }
|
---|
| 4630 |
|
---|
| 4631 |
|
---|
| 4632 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4633 | {
|
---|
[580] | 4634 | ViewCellContainer leaves;
|
---|
| 4635 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4636 |
|
---|
| 4637 | int maxDist = 0;
|
---|
[580] | 4638 |
|
---|
[482] | 4639 | // compute max height difference
|
---|
[580] | 4640 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
| 4641 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[482] | 4642 | {
|
---|
[580] | 4643 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4644 |
|
---|
| 4645 | if (i != j)
|
---|
| 4646 | {
|
---|
[580] | 4647 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
[482] | 4648 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4649 | if (dist > maxDist)
|
---|
| 4650 | maxDist = dist;
|
---|
| 4651 | }
|
---|
| 4652 | }
|
---|
[580] | 4653 |
|
---|
[492] | 4654 | return maxDist;
|
---|
| 4655 | }
|
---|
[482] | 4656 |
|
---|
[492] | 4657 |
|
---|
[879] | 4658 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4659 | {
|
---|
[508] | 4660 | if (!mVspBspTree)
|
---|
| 4661 | return NULL;
|
---|
[572] | 4662 |
|
---|
| 4663 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4664 | return NULL;
|
---|
| 4665 |
|
---|
[879] | 4666 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4667 | }
|
---|
[503] | 4668 |
|
---|
| 4669 |
|
---|
| 4670 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4671 | {
|
---|
[726] | 4672 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4673 | BspNodeGeometry geom;
|
---|
[590] | 4674 |
|
---|
| 4675 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4676 |
|
---|
[503] | 4677 | Mesh *mesh = new Mesh();
|
---|
[840] | 4678 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4679 |
|
---|
[503] | 4680 | vc->SetMesh(mesh);
|
---|
[726] | 4681 | // put mesh into mesh container so we can savely delete it
|
---|
[503] | 4682 | mMeshContainer.push_back(mesh);
|
---|
| 4683 | }
|
---|
[508] | 4684 |
|
---|
| 4685 |
|
---|
[577] | 4686 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string filename,
|
---|
| 4687 | ObjectContainer *objects)
|
---|
[508] | 4688 | {
|
---|
| 4689 | ViewCellsParser parser;
|
---|
[564] | 4690 |
|
---|
[577] | 4691 | ViewCellsManager *vm = NULL;
|
---|
[564] | 4692 |
|
---|
[870] | 4693 | Debug << "vc filename: " << filename << endl;
|
---|
| 4694 |
|
---|
[577] | 4695 | if (parser.ParseFile(filename, &vm, objects))
|
---|
| 4696 | {
|
---|
[590] | 4697 | //vm->PrepareLoadedViewCells();
|
---|
[577] | 4698 | vm->ResetViewCells();
|
---|
[564] | 4699 |
|
---|
[577] | 4700 | vm->mViewCellsFinished = true;
|
---|
| 4701 | vm->mMaxPvsSize = (int)objects->size();
|
---|
[517] | 4702 |
|
---|
[719] | 4703 | // create the meshes and compute volumes
|
---|
[577] | 4704 | vm->FinalizeViewCells(true);
|
---|
[564] | 4705 |
|
---|
[685] | 4706 | vm->mViewCellsTree->AssignRandomColors();
|
---|
[577] | 4707 | Debug << (int)vm->mViewCells.size() << " view cells loaded" << endl;
|
---|
| 4708 | }
|
---|
| 4709 | else
|
---|
| 4710 | {
|
---|
[870] | 4711 | Debug << "Error: loading view cells failed!" << endl;
|
---|
[577] | 4712 | DEL_PTR(vm);
|
---|
| 4713 | }
|
---|
| 4714 |
|
---|
| 4715 | return vm;
|
---|
[508] | 4716 | }
|
---|
| 4717 |
|
---|
| 4718 |
|
---|
| 4719 |
|
---|
[871] | 4720 | bool VspBspViewCellsManager::ExportViewCells(const string filename, const bool exportPvs)
|
---|
[508] | 4721 | {
|
---|
[564] | 4722 | cout << "exporting view cells to xml ... ";
|
---|
[508] | 4723 | std::ofstream stream;
|
---|
| 4724 |
|
---|
[577] | 4725 | // for output we need unique ids for each view cell
|
---|
[590] | 4726 | CreateUniqueViewCellIds();
|
---|
[508] | 4727 |
|
---|
| 4728 | stream.open(filename.c_str());
|
---|
| 4729 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 4730 | stream << "<Visibility_Solution>" << endl;
|
---|
[564] | 4731 |
|
---|
[577] | 4732 | //-- the view space bounding box
|
---|
| 4733 | stream << "<ViewSpaceBox"
|
---|
| 4734 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 4735 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 4736 |
|
---|
[840] | 4737 |
|
---|
| 4738 |
|
---|
[577] | 4739 | //-- the type of the view cells hierarchy
|
---|
| 4740 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl;
|
---|
| 4741 |
|
---|
[840] | 4742 | //-- export the view cells and the pvs
|
---|
[508] | 4743 | stream << "<ViewCells>" << endl;
|
---|
[840] | 4744 |
|
---|
[871] | 4745 | mViewCellsTree->Export(stream, exportPvs);
|
---|
[564] | 4746 |
|
---|
[508] | 4747 | stream << "</ViewCells>" << endl;
|
---|
[564] | 4748 |
|
---|
[840] | 4749 |
|
---|
[837] | 4750 | //-- export the hierarchy
|
---|
[590] | 4751 | stream << "<Hierarchy>" << endl;
|
---|
[508] | 4752 | mVspBspTree->Export(stream);
|
---|
[590] | 4753 | stream << endl << "</Hierarchy>" << endl;
|
---|
[564] | 4754 |
|
---|
[840] | 4755 |
|
---|
| 4756 |
|
---|
[508] | 4757 | stream << "</Visibility_Solution>" << endl;
|
---|
| 4758 | stream.close();
|
---|
| 4759 |
|
---|
| 4760 | cout << "finished" << endl;
|
---|
| 4761 |
|
---|
| 4762 | return true;
|
---|
[532] | 4763 | }
|
---|
| 4764 |
|
---|
| 4765 |
|
---|
| 4766 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4767 | {
|
---|
[535] | 4768 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4769 | }
|
---|
[551] | 4770 |
|
---|
| 4771 |
|
---|
[587] | 4772 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4773 | const bool createMesh)
|
---|
[551] | 4774 | {
|
---|
| 4775 | float area = 0;
|
---|
| 4776 | float volume = 0;
|
---|
| 4777 |
|
---|
[580] | 4778 | ViewCellContainer leaves;
|
---|
[582] | 4779 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4780 |
|
---|
| 4781 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4782 |
|
---|
[693] | 4783 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4784 | {
|
---|
| 4785 | BspNodeGeometry geom;
|
---|
[580] | 4786 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4787 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4788 |
|
---|
[719] | 4789 | const float lVol = geom.GetVolume();
|
---|
| 4790 | const float lArea = geom.GetArea();
|
---|
[693] | 4791 |
|
---|
| 4792 | //(*it)->SetVolume(vol);
|
---|
| 4793 | //(*it)->SetArea(area);
|
---|
| 4794 |
|
---|
| 4795 | area += lArea;
|
---|
| 4796 | volume += lVol;
|
---|
| 4797 |
|
---|
| 4798 | CreateMesh(*it);
|
---|
[551] | 4799 | }
|
---|
| 4800 |
|
---|
| 4801 | viewCell->SetVolume(volume);
|
---|
| 4802 | viewCell->SetArea(area);
|
---|
[563] | 4803 | }
|
---|
[575] | 4804 |
|
---|
| 4805 |
|
---|
[693] | 4806 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4807 | {
|
---|
| 4808 | ViewCellContainer leaves;
|
---|
| 4809 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4810 |
|
---|
| 4811 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4812 |
|
---|
| 4813 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4814 | float subdivVol = 0;
|
---|
| 4815 | float newVol = 0;
|
---|
| 4816 |
|
---|
| 4817 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4818 | {
|
---|
| 4819 | BspNodeGeometry geom;
|
---|
| 4820 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4821 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4822 |
|
---|
| 4823 | const float lVol = geom.GetVolume();
|
---|
| 4824 |
|
---|
| 4825 | newVol += lVol;
|
---|
| 4826 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4827 |
|
---|
[704] | 4828 | float thres = 0.9f;
|
---|
[697] | 4829 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4830 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4831 | }
|
---|
| 4832 |
|
---|
| 4833 | Debug << "exact volume: " << vol << endl;
|
---|
| 4834 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4835 | Debug << "new volume: " << newVol << endl;
|
---|
| 4836 | }
|
---|
| 4837 |
|
---|
| 4838 |
|
---|
[577] | 4839 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4840 | {
|
---|
| 4841 | // TODO: do I still need this here?
|
---|
[590] | 4842 | if (0)
|
---|
[693] | 4843 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4844 | }
|
---|
[575] | 4845 |
|
---|
[859] | 4846 | void
|
---|
[884] | 4847 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 4848 | KdTree *kdTree,
|
---|
| 4849 | const float spatialFilterSize,
|
---|
| 4850 | ObjectPvs &pvs
|
---|
| 4851 | )
|
---|
[859] | 4852 | {
|
---|
| 4853 |
|
---|
| 4854 | // now compute a new Pvs by including also objects intersecting the extended boxes of
|
---|
| 4855 | // visible objects
|
---|
| 4856 |
|
---|
| 4857 | Intersectable::NewMail();
|
---|
| 4858 |
|
---|
| 4859 | std::map<Intersectable *,
|
---|
| 4860 | PvsData<Intersectable *>,
|
---|
| 4861 | LtSample<Intersectable *> >::const_iterator oi;
|
---|
| 4862 |
|
---|
| 4863 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 4864 | Intersectable *object = (*oi).first;
|
---|
| 4865 | object->Mail();
|
---|
| 4866 | }
|
---|
| 4867 |
|
---|
| 4868 | ObjectPvs nPvs;
|
---|
[884] | 4869 | int nPvsSize=0;
|
---|
[859] | 4870 | // now go through the pvs again
|
---|
| 4871 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 4872 | Intersectable *object = (*oi).first;
|
---|
| 4873 |
|
---|
| 4874 | // Vector3 center = object->GetBox().Center();
|
---|
| 4875 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 4876 | // center + Vector3(spatialFilterSize/2));
|
---|
| 4877 |
|
---|
| 4878 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 4879 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 4880 |
|
---|
| 4881 | ObjectContainer objects;
|
---|
| 4882 |
|
---|
| 4883 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 4884 | kdTree->CollectObjects(box,
|
---|
| 4885 | objects);
|
---|
| 4886 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 4887 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 4888 | for (; noi != objects.end(); ++noi) {
|
---|
| 4889 | Intersectable *o = *noi;
|
---|
[884] | 4890 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 4891 | nPvs.AddSample(o, Limits::Small);
|
---|
| 4892 | nPvsSize++;
|
---|
[859] | 4893 | }
|
---|
| 4894 | }
|
---|
[884] | 4895 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
[859] | 4896 | pvs.Merge(nPvs);
|
---|
| 4897 | }
|
---|
| 4898 |
|
---|
[884] | 4899 | void
|
---|
| 4900 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 4901 | KdTree *kdTree,
|
---|
| 4902 | const float viewSpaceFilterSize,
|
---|
| 4903 | const float spatialFilterSize,
|
---|
| 4904 | ObjectPvs &pvs
|
---|
| 4905 | )
|
---|
| 4906 | {
|
---|
| 4907 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 4908 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 4909 | // in the pvs
|
---|
[859] | 4910 |
|
---|
[884] | 4911 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 4912 | // and compute the pvs union
|
---|
| 4913 |
|
---|
| 4914 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 4915 | // Vector3 center = m->mBox.Center();
|
---|
| 4916 |
|
---|
| 4917 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 4918 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 4919 |
|
---|
| 4920 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 4921 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 4922 |
|
---|
| 4923 | ViewCellContainer viewCells;
|
---|
| 4924 | ComputeBoxIntersections(box, viewCells);
|
---|
[859] | 4925 |
|
---|
[884] | 4926 | // cout<<"box="<<box<<endl;
|
---|
| 4927 | ViewCellContainer::const_iterator it=viewCells.begin(), it_end = viewCells.end();
|
---|
| 4928 |
|
---|
| 4929 | int i;
|
---|
| 4930 | for (i=0; it != it_end; ++it, i++) {
|
---|
| 4931 | // cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 4932 | pvs.Merge((*it)->GetPvs());
|
---|
| 4933 | }
|
---|
| 4934 |
|
---|
| 4935 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 4936 | }
|
---|
| 4937 |
|
---|
| 4938 |
|
---|
| 4939 |
|
---|
[859] | 4940 | void
|
---|
| 4941 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 4942 | const float relViewSpaceFilterSize,
|
---|
| 4943 | const float relSpatialFilterSize
|
---|
| 4944 | )
|
---|
| 4945 | {
|
---|
| 4946 |
|
---|
| 4947 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 4948 |
|
---|
| 4949 | ObjectPvs *newPvs;
|
---|
| 4950 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 4951 |
|
---|
| 4952 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 4953 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 4954 |
|
---|
| 4955 | int i;
|
---|
| 4956 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, i++) {
|
---|
| 4957 | ApplyFilter(*it,
|
---|
| 4958 | kdTree,
|
---|
| 4959 | viewSpaceFilterSize,
|
---|
| 4960 | spatialFilterSize,
|
---|
| 4961 | newPvs[i]
|
---|
| 4962 | );
|
---|
| 4963 | }
|
---|
| 4964 |
|
---|
| 4965 | // now replace all pvss
|
---|
| 4966 | for (i= 0, it = mViewCells.begin(); it != it_end; ++ it, i++) {
|
---|
| 4967 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 4968 | pvs.Clear();
|
---|
| 4969 | pvs = newPvs[i];
|
---|
| 4970 | }
|
---|
| 4971 |
|
---|
| 4972 | }
|
---|
| 4973 |
|
---|
[697] | 4974 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
| 4975 | {
|
---|
| 4976 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[580] | 4977 |
|
---|
[704] | 4978 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4979 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
[880] | 4980 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
[746] | 4981 | const Vector3 width = Vector3(w);
|
---|
[704] | 4982 |
|
---|
| 4983 | PrVs testPrVs;
|
---|
| 4984 |
|
---|
[697] | 4985 | if (exporter)
|
---|
| 4986 | {
|
---|
| 4987 | ViewCellContainer viewCells;
|
---|
[704] | 4988 |
|
---|
| 4989 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
| 4990 |
|
---|
| 4991 | GetPrVS(viewPoint, testPrVs);
|
---|
| 4992 |
|
---|
[697] | 4993 | exporter->SetWireframe();
|
---|
| 4994 |
|
---|
| 4995 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
[704] | 4996 | exporter->ExportBox(tbox);
|
---|
[697] | 4997 |
|
---|
| 4998 | exporter->SetFilled();
|
---|
| 4999 |
|
---|
[705] | 5000 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[880] | 5001 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
[705] | 5002 |
|
---|
| 5003 | //exporter->ResetForcedMaterial();
|
---|
| 5004 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[704] | 5005 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
| 5006 |
|
---|
| 5007 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
[697] | 5008 | exporter->ExportGeometry(objects);
|
---|
| 5009 |
|
---|
| 5010 | delete exporter;
|
---|
| 5011 | }
|
---|
| 5012 | }
|
---|
| 5013 |
|
---|
| 5014 |
|
---|
[580] | 5015 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 5016 | vector<MergeCandidate> &candidates)
|
---|
| 5017 | {
|
---|
| 5018 | cout << "collecting merge candidates ... " << endl;
|
---|
| 5019 |
|
---|
| 5020 | if (mUseRaysForMerge)
|
---|
| 5021 | {
|
---|
| 5022 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 5023 | }
|
---|
| 5024 | else
|
---|
| 5025 | {
|
---|
| 5026 | vector<BspLeaf *> leaves;
|
---|
| 5027 | mVspBspTree->CollectLeaves(leaves);
|
---|
[708] | 5028 |
|
---|
[580] | 5029 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 5030 | }
|
---|
| 5031 |
|
---|
| 5032 | cout << "fininshed collecting candidates" << endl;
|
---|
| 5033 | }
|
---|
| 5034 |
|
---|
| 5035 |
|
---|
| 5036 | //////////////////////////////////
|
---|
[575] | 5037 | ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
| 5038 | {
|
---|
| 5039 | //TODO
|
---|
| 5040 | return NULL;// new VspBspViewCellsManager();
|
---|
| 5041 | }
|
---|
[580] | 5042 |
|
---|
[860] | 5043 |
|
---|
[878] | 5044 | }
|
---|