[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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[712] | 18 | // HACK
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| 19 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 20 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 21 |
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[697] | 22 |
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| 23 |
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| 24 | template <typename T> class myless
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| 25 | {
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| 26 | public:
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| 27 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 28 | bool operator() (T v1, T v2) const
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| 29 | {
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| 30 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 31 | }
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| 32 | };
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| 33 |
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[706] | 34 | //typedef priority_queue<ViewCell *, vector<ViewCell *>, myless<vector<ViewCell *>::value_type> > FilterQueue;
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[697] | 35 |
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| 36 |
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| 37 |
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[440] | 38 | ViewCellsManager::ViewCellsManager():
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[480] | 39 | mRenderer(NULL),
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[574] | 40 | mInitialSamples(0),
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[440] | 41 | mConstructionSamples(0),
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| 42 | mPostProcessSamples(0),
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[470] | 43 | mVisualizationSamples(0),
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| 44 | mTotalAreaValid(false),
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[517] | 45 | mTotalArea(0.0f),
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[547] | 46 | mViewCellsFinished(false),
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[562] | 47 | mMaxPvsSize(9999999),
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[564] | 48 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 49 | mMaxPvsRatio(1.0),
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| 50 | mViewCellPvsIsUpdated(false)
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[440] | 51 | {
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[542] | 52 | mViewSpaceBox.Initialize();
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[482] | 53 | ParseEnvironment();
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[580] | 54 |
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| 55 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 56 | }
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| 57 |
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[517] | 58 |
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[482] | 59 | void ViewCellsManager::ParseEnvironment()
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| 60 | {
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[503] | 61 | // visualization stuff
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[485] | 62 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 63 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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[547] | 64 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 65 |
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[710] | 66 | environment->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 67 |
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[710] | 68 | // HACK
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| 69 | if (0)
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| 70 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 71 | else
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| 72 | mMinPvsSize = 0;
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| 73 |
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[564] | 74 | environment->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 75 |
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[574] | 76 | environment->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 77 | environment->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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[595] | 78 | environment->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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| 79 |
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[574] | 80 | environment->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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| 81 |
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| 82 | environment->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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[577] | 83 | environment->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 84 |
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[600] | 85 | environment->GetIntValue("ViewCells.active", mNumActiveViewCells);
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[586] | 86 | environment->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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[660] | 87 | environment->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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[591] | 88 | environment->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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[664] | 89 | environment->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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[666] | 90 | environment->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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[697] | 91 | environment->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 92 | environment->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[710] | 93 |
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[664] | 94 | char buf[100];
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| 95 | environment->GetStringValue("ViewCells.samplingType", buf);
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| 96 |
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[660] | 97 |
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[664] | 98 | if (strcmp(buf, "box") == 0)
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[722] | 99 | {
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[660] | 100 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 101 | }
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[664] | 102 | else if (strcmp(buf, "directional") == 0)
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[722] | 103 | {
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[660] | 104 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 105 | }
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[666] | 106 | else
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| 107 | {
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| 108 | Debug << "error! wrong sampling type" << endl;
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| 109 | exit(0);
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| 110 | }
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[660] | 111 |
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[722] | 112 | environment->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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| 113 |
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| 114 | if (strcmp(buf, "box") == 0)
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| 115 | {
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| 116 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 117 | }
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| 118 | else if (strcmp(buf, "directional") == 0)
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| 119 | {
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| 120 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 121 | }
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| 122 | else
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| 123 | {
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| 124 | Debug << "error! wrong sampling type" << endl;
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| 125 | exit(0);
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| 126 | }
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[503] | 127 |
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[722] | 128 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
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| 129 |
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[482] | 130 | if (strcmp(buf, "PVS") == 0)
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| 131 | mColorCode = 1;
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| 132 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 133 | mColorCode = 2;
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| 134 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 135 | mColorCode = 3;
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| 136 | else
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| 137 | mColorCode = 0;
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| 138 |
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[664] | 139 |
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[710] | 140 |
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[664] | 141 | Debug << "***********View Cells options ****************" << endl;
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| 142 | Debug << "color code: " << mColorCode << endl;
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| 143 |
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| 144 | Debug << "export rays: " << mExportRays << endl;
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| 145 | Debug << "export geometry: " << mExportGeometry << endl;
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| 146 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 147 |
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[710] | 148 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 149 |
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| 150 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 151 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 152 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 153 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 154 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 155 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 156 | Debug << "export to file: " << mExportViewCells << endl;
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| 157 |
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| 158 | Debug << "active: " << mNumActiveViewCells << endl;
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| 159 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 160 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 161 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 162 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 163 | Debug << "sampling type: " << mSamplingType << endl;
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[666] | 164 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 165 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 166 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[664] | 167 | Debug << endl;
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[440] | 168 | }
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| 169 |
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[485] | 170 |
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[440] | 171 | ViewCellsManager::~ViewCellsManager()
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| 172 | {
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[480] | 173 | DEL_PTR(mRenderer);
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[580] | 174 |
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[598] | 175 | if (!ViewCellsTreeConstructed())
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| 176 | CLEAR_CONTAINER(mViewCells);
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| 177 | else
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| 178 | DEL_PTR(mViewCellsTree);
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| 179 |
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[503] | 180 | CLEAR_CONTAINER(mMeshContainer);
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[440] | 181 | }
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| 182 |
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[485] | 183 |
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[693] | 184 | void ViewCellsManager::CollectEmptyViewCells()
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| 185 | {
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| 186 | mEmptyViewCells.clear();
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| 187 | ViewCellContainer leaves;
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| 188 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 189 |
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| 190 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 191 |
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| 192 | cout << "collecting empty view cells" << endl;
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[694] | 193 |
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[693] | 194 | for (it = leaves.begin(); it != it_end; ++ it)
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| 195 | {
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| 196 | if ((*it)->GetPvs().Empty())
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| 197 | {
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| 198 | mEmptyViewCells.push_back(*it);
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| 199 | }
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| 200 | }
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[694] | 201 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 202 | }
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| 203 |
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| 204 |
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[694] | 205 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 206 | {
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| 207 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 208 |
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| 209 | char buf[50];
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| 210 | int i = 0;
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| 211 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 212 | {
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| 213 | if (!(*it)->GetPvs().Empty())
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| 214 | {
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[694] | 215 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 216 | Exporter *exporter = Exporter::GetExporter(buf);
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| 217 |
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| 218 | if (exporter && i < 20)
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| 219 | {
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[694] | 220 | Ray *pray = (*it)->mPiercingRays[0];
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[697] | 221 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: " << (*it)->GetPvs().GetSize() << " " << (int)pray->intersections.size() << endl;
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[694] | 222 |
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| 223 | exporter->ExportRays((*it)->mPiercingRays);
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| 224 |
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| 225 | exporter->SetFilled();
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| 226 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 227 |
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| 228 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 229 | {
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| 230 | if (pray->intersections[j].mObject)
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| 231 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 232 | }
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| 233 |
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| 234 | //exporter->SetWireframe();
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| 235 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 236 | exporter->ExportGeometry(obj);
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| 237 |
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| 238 | exporter->SetFilled();
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| 239 |
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| 240 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 241 | ExportViewCellGeometry(exporter, *it);
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[694] | 242 |
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| 243 | delete exporter;
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[693] | 244 | }
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| 245 |
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[694] | 246 |
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[693] | 247 | ++ i;
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| 248 | }
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| 249 | }
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[694] | 250 | Debug << "\nSampled " << i << " new view cells (" << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 251 | }
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| 252 |
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| 253 |
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[574] | 254 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 255 | const int sampleType,
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| 256 | VssRayContainer &passSamples) const
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[527] | 257 | {
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[570] | 258 | SimpleRayContainer simpleRays;
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[540] | 259 |
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[573] | 260 | preprocessor->GenerateRays(samplesPerPass,
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| 261 | sampleType,
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[570] | 262 | simpleRays);
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[564] | 263 |
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[573] | 264 | // shoot simple ray and add it to importance samples
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| 265 | preprocessor->CastRays(simpleRays, passSamples);
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[570] | 266 |
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[574] | 267 | return (int)passSamples.size();
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| 268 | }
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[570] | 269 |
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[574] | 270 |
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[607] | 271 |
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[574] | 272 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 273 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 274 | {
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| 275 | cout << "disposing samples ... ";
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[582] | 276 | long startTime = GetTime();
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| 277 | int n = (int)rays.size();
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| 278 |
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[573] | 279 | if (outRays)
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[542] | 280 | {
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[574] | 281 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 282 |
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| 283 | for (it = rays.begin(); it != it_end; ++ it)
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| 284 | {
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| 285 | outRays->push_back(*it);
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| 286 | }
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[573] | 287 | }
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| 288 | else
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| 289 | {
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[639] | 290 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 291 |
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| 292 | for (it = rays.begin(); it != it_end; ++ it)
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| 293 | {
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| 294 | //(*it)->Unref();
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| 295 | if (!(*it)->IsActive())
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| 296 | delete (*it);
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| 297 | }
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[573] | 298 | }
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[639] | 299 |
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[574] | 300 | cout << "finished" << endl;
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[582] | 301 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 302 | }
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[570] | 303 |
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| 304 |
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[573] | 305 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 306 | {
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| 307 | int numSamples = 0;
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| 308 | SimpleRayContainer simpleRays;
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| 309 |
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[574] | 310 | VssRayContainer initialSamples;
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[540] | 311 |
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[574] | 312 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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[712] | 313 |
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[573] | 314 | //-- construction rays => we use uniform samples for this
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[574] | 315 | CastPassSamples(mInitialSamples,
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[660] | 316 | mSamplingType,
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[574] | 317 | initialSamples);
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[573] | 318 |
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[574] | 319 | cout << "finished" << endl;
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| 320 |
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[660] | 321 |
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[573] | 322 | // construct view cells
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[574] | 323 | const int numInitialSamples =
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| 324 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
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[540] | 325 |
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[727] | 326 | // initial samples count for overall samples ...
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[574] | 327 | numSamples += numInitialSamples;
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[542] | 328 |
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[574] | 329 | // rays can be passed or deleted
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[639] | 330 | disposeRays(initialSamples, outRays);
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[574] | 331 |
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[720] | 332 | // testing the view cell filter functionality
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| 333 | if (0) TestFilter(preprocessor->mObjects);
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[570] | 334 |
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[660] | 335 | // -- stats after contruction
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| 336 | ResetViewCells();
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| 337 |
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[667] | 338 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
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| 339 |
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[683] | 340 | if (1) // export initial view cells
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[660] | 341 | {
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[712] | 342 | const char filename[] = "view_cells.wrl";
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| 343 | Exporter *exporter = Exporter::GetExporter(filename);
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[660] | 344 |
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[712] | 345 |
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[660] | 346 | if (exporter)
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| 347 | {
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[712] | 348 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
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[660] | 349 | if (mExportGeometry)
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[712] | 350 | {
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[660] | 351 | exporter->ExportGeometry(preprocessor->mObjects);
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[712] | 352 | }
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[660] | 353 |
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[712] | 354 | //exporter->SetWireframe();
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[660] | 355 | ExportViewCellsForViz(exporter);
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| 356 |
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| 357 | delete exporter;
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[712] | 358 | cout << "finished" << endl;
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[660] | 359 | }
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| 360 | }
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| 361 |
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[573] | 362 | //-- guided rays are used for further sampling
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[574] | 363 | const int n = mConstructionSamples; //+initialSamples;
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[570] | 364 |
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[666] | 365 | // should we use directional samples?
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[694] | 366 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
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[573] | 367 |
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[712] | 368 | // -- the main loop
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[573] | 369 | while (numSamples < n)
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| 370 | {
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[596] | 371 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
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[727] | 372 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
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| 373 |
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[574] | 374 | VssRayContainer constructionSamples;
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| 375 |
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[694] | 376 | const int samplingType = mSamplingType;
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| 377 | /*dirSamples ?
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[574] | 378 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
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[694] | 379 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
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[667] | 380 |
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[720] | 381 | if (0) dirSamples = !dirSamples; // toggle sampling method
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[667] | 382 |
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[727] | 383 | // cast new samples
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[574] | 384 | numSamples += CastPassSamples(mSamplesPerPass,
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[666] | 385 | samplingType,
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[574] | 386 | constructionSamples);
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| 387 |
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| 388 | cout << "finished" << endl;
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| 389 |
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| 390 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
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| 391 |
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[727] | 392 | // computes sample contribution of cast rays TODO: leak?
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| 393 | if (SAMPLE_AFTER_SUBDIVISION)
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[605] | 394 | ComputeSampleContributions(constructionSamples, true, false);
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[712] | 395 |
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[574] | 396 | cout << "finished" << endl;
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| 397 |
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| 398 |
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[639] | 399 | disposeRays(constructionSamples, outRays);
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[574] | 400 |
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| 401 | cout << "total samples: " << numSamples << endl;
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[542] | 402 | }
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[573] | 403 |
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[570] | 404 |
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[573] | 405 | //-- post processing
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| 406 | VssRayContainer postProcessSamples;
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[570] | 407 |
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[694] | 408 | //-- construction rays
|
---|
[574] | 409 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 410 | mSamplingType,
|
---|
[574] | 411 | postProcessSamples);
|
---|
[660] | 412 |
|
---|
| 413 |
|
---|
| 414 | // stats before post processing (i.e., merge)
|
---|
| 415 | EvaluateViewCellsStats();
|
---|
| 416 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 417 |
|
---|
| 418 | mRenderer->RenderScene();
|
---|
| 419 | SimulationStatistics ss;
|
---|
| 420 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 421 |
|
---|
| 422 | Debug << ss << endl;
|
---|
| 423 |
|
---|
| 424 |
|
---|
| 425 |
|
---|
[574] | 426 | cout << "starting post processing and visualization" << endl;
|
---|
| 427 |
|
---|
[660] | 428 |
|
---|
[666] | 429 | // store view cells for postprocessing
|
---|
[574] | 430 | const bool storeViewCells = true;
|
---|
[605] | 431 |
|
---|
[660] | 432 |
|
---|
[605] | 433 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 434 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 435 |
|
---|
[720] | 436 | //-- post processing (e.g.,merging) of the view cells
|
---|
[573] | 437 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 438 |
|
---|
[720] | 439 | // only for debugging purpose
|
---|
[694] | 440 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
| 441 | CollectEmptyViewCells();
|
---|
[570] | 442 |
|
---|
[693] | 443 |
|
---|
[574] | 444 | //-- visualization
|
---|
[666] | 445 | if (mShowVisualization)
|
---|
| 446 | {
|
---|
| 447 | VssRayContainer visualizationSamples;
|
---|
[574] | 448 |
|
---|
[666] | 449 | //-- construction rays => we use uniform samples for this
|
---|
| 450 | CastPassSamples(mVisualizationSamples,
|
---|
| 451 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 452 | visualizationSamples);
|
---|
[574] | 453 |
|
---|
[666] | 454 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 455 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 456 |
|
---|
[666] | 457 | // different visualizations
|
---|
| 458 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 459 |
|
---|
[666] | 460 | disposeRays(visualizationSamples, outRays);
|
---|
| 461 | }
|
---|
[574] | 462 |
|
---|
[707] | 463 | // needed to fix empty view cells
|
---|
[710] | 464 | //SetValidity(0, 99999999999);
|
---|
[707] | 465 |
|
---|
[720] | 466 |
|
---|
| 467 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
[664] | 468 | if (mEvaluateViewCells)
|
---|
| 469 | {
|
---|
[666] | 470 | EvalViewCellPartition(preprocessor);
|
---|
[664] | 471 | }
|
---|
[666] | 472 |
|
---|
[667] | 473 | if (0)
|
---|
| 474 | {
|
---|
| 475 | ViewCellContainer leaves;
|
---|
| 476 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 477 | mViewCellsTree->ResetPvs();
|
---|
| 478 | VssRayContainer dummyRays;
|
---|
| 479 | CastPassSamples(mInitialSamples, mSamplingType, dummyRays);
|
---|
[666] | 480 |
|
---|
[667] | 481 | //ComputeSampleContributions(initialSamples, true, false);
|
---|
| 482 | ComputeSampleContributions(dummyRays, true, false);
|
---|
[664] | 483 |
|
---|
[667] | 484 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[666] | 485 |
|
---|
[667] | 486 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 487 | {
|
---|
| 488 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 489 | }
|
---|
| 490 |
|
---|
| 491 | mViewCellsTree->ExportStats("dummy.log");
|
---|
[666] | 492 | }
|
---|
| 493 |
|
---|
[573] | 494 | return numSamples;
|
---|
[527] | 495 | }
|
---|
| 496 |
|
---|
[547] | 497 |
|
---|
[664] | 498 | void ViewCellsManager::EvalViewCellPartition(Preprocessor *preprocessor)
|
---|
[660] | 499 | {
|
---|
| 500 | int samplesPerPass;
|
---|
| 501 | int numSamples;
|
---|
| 502 | int castSamples = 0;
|
---|
| 503 |
|
---|
[664] | 504 | char s[64];
|
---|
| 505 |
|
---|
[660] | 506 | environment->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 507 | environment->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 508 |
|
---|
[664] | 509 | char statsPrefix[100];
|
---|
| 510 | environment->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 511 |
|
---|
[664] | 512 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 513 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 514 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 515 |
|
---|
| 516 | //VssRayContainer outRays;
|
---|
[666] | 517 | // should directional sampling be used?
|
---|
[722] | 518 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 519 |
|
---|
| 520 | cout << "Evaluating view cell partition" << endl;
|
---|
| 521 |
|
---|
| 522 | ViewCellContainer leaves;
|
---|
| 523 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 524 |
|
---|
[666] | 525 | bool startFromZero = true;
|
---|
| 526 |
|
---|
| 527 | // reset pvs and start over from zero
|
---|
| 528 | if (startFromZero)
|
---|
| 529 | {
|
---|
| 530 | mViewCellsTree->ResetPvs();
|
---|
| 531 | }
|
---|
| 532 | else // statistics without addidtional samples
|
---|
| 533 | {
|
---|
| 534 | cout << "compute new statistics ... ";
|
---|
| 535 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 536 | string fName = string(statsPrefix) + string(s);
|
---|
| 537 |
|
---|
| 538 | mViewCellsTree->ExportStats(fName);
|
---|
| 539 | cout << "finished" << endl;
|
---|
| 540 | }
|
---|
| 541 |
|
---|
| 542 |
|
---|
[660] | 543 | while (castSamples < numSamples)
|
---|
| 544 | {
|
---|
[664] | 545 | VssRayContainer evaluationSamples;
|
---|
[663] | 546 |
|
---|
[722] | 547 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 548 | /* dirSamples ?
|
---|
[664] | 549 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 550 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 551 | */
|
---|
[664] | 552 | //-- construction rays => we use uniform samples for this
|
---|
| 553 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 554 |
|
---|
| 555 | castSamples += samplesPerPass;
|
---|
| 556 |
|
---|
| 557 | cout << "casting " << (int)evaluationSamples.size() << " samples " << endl;
|
---|
| 558 |
|
---|
| 559 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 560 |
|
---|
| 561 | cout << "compute new statistics ... ";
|
---|
| 562 |
|
---|
| 563 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 564 |
|
---|
| 565 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 566 | {
|
---|
| 567 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 568 | }
|
---|
| 569 |
|
---|
| 570 | // output stats
|
---|
[667] | 571 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 572 | string fileName = string(statsPrefix) + string(s);
|
---|
| 573 |
|
---|
| 574 | mViewCellsTree->ExportStats(fileName);
|
---|
| 575 |
|
---|
| 576 | cout << "finished" << endl;
|
---|
| 577 |
|
---|
| 578 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 579 | }
|
---|
[693] | 580 |
|
---|
| 581 | // find empty view cells bug
|
---|
[694] | 582 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
[719] | 583 | {
|
---|
[694] | 584 | TestEmptyViewCells(preprocessor->mObjects);
|
---|
[719] | 585 | }
|
---|
[660] | 586 | }
|
---|
| 587 |
|
---|
[704] | 588 |
|
---|
| 589 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 590 | {
|
---|
[704] | 591 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 592 | }
|
---|
[660] | 593 |
|
---|
[703] | 594 |
|
---|
[704] | 595 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 596 | {
|
---|
[705] | 597 | int bestViewCellIdx = 0;
|
---|
[703] | 598 |
|
---|
[704] | 599 | float mergeCost = Limits::Infinity;
|
---|
| 600 | int i = 0;
|
---|
[703] | 601 |
|
---|
[704] | 602 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 603 |
|
---|
[704] | 604 | for (it = neighborhood.begin(); it != it_end; ++ it, ++ i)
|
---|
[703] | 605 | {
|
---|
[704] | 606 | const float mc = EvalMergeCost(root, *it);
|
---|
[705] | 607 |
|
---|
| 608 | if (mc < mergeCost)
|
---|
[704] | 609 | {
|
---|
| 610 | mergeCost = mc;
|
---|
| 611 | bestViewCellIdx = i;
|
---|
[703] | 612 | }
|
---|
[704] | 613 | }
|
---|
[703] | 614 |
|
---|
[704] | 615 | return bestViewCellIdx;
|
---|
| 616 | }
|
---|
[703] | 617 |
|
---|
| 618 |
|
---|
[704] | 619 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 620 | const ViewCellContainer &viewCells)
|
---|
| 621 | {
|
---|
| 622 | ViewCell *root = currentViewCell;
|
---|
| 623 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 624 |
|
---|
[704] | 625 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 626 |
|
---|
[704] | 627 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 628 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 629 |
|
---|
[705] | 630 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 631 | //const float maxAvgCost = 350;
|
---|
| 632 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 633 | {
|
---|
[704] | 634 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 635 |
|
---|
[704] | 636 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 637 |
|
---|
[704] | 638 | // remove from vector
|
---|
| 639 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 640 | neighborhood.pop_back();
|
---|
[705] | 641 |
|
---|
[713] | 642 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 643 | if (!bestViewCell || !root)
|
---|
| 644 | cout << "warning!!" << endl;
|
---|
[705] | 645 |
|
---|
[704] | 646 | // create new root of the hierarchy
|
---|
| 647 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 648 | }
|
---|
| 649 |
|
---|
[704] | 650 | return root;
|
---|
[703] | 651 | }
|
---|
| 652 |
|
---|
[704] | 653 |
|
---|
[713] | 654 | struct SortableViewCellEntry {
|
---|
| 655 |
|
---|
| 656 | SortableViewCellEntry() {}
|
---|
| 657 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
| 658 |
|
---|
| 659 | float mValue;
|
---|
| 660 | ViewCell *mViewCell;
|
---|
| 661 |
|
---|
| 662 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 663 | return a.mValue < b.mValue;
|
---|
| 664 | }
|
---|
| 665 | };
|
---|
| 666 |
|
---|
| 667 | ViewCell *
|
---|
| 668 | ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 669 | const ViewCellContainer &viewCells)
|
---|
| 670 | {
|
---|
| 671 |
|
---|
| 672 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 673 | int i, j;
|
---|
| 674 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 675 | if (viewCells[i] != currentViewCell)
|
---|
| 676 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 677 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 678 | viewCells[i]);
|
---|
| 679 | }
|
---|
| 680 | neighborhood.resize(j);
|
---|
| 681 |
|
---|
| 682 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 683 |
|
---|
| 684 | ViewCell *root = currentViewCell;
|
---|
| 685 |
|
---|
| 686 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 687 |
|
---|
| 688 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 689 | //-- use priority queue to merge leaf pairs
|
---|
| 690 |
|
---|
| 691 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 692 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
| 693 | {
|
---|
| 694 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 695 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 696 | // create new root of the hierarchy
|
---|
| 697 | root = MergeViewCells(root, bestViewCell);
|
---|
| 698 | // set negative cost so that this view cell gets deleted
|
---|
| 699 | root->SetMergeCost(-1.0f);
|
---|
| 700 | }
|
---|
| 701 |
|
---|
| 702 | return root;
|
---|
| 703 | }
|
---|
| 704 |
|
---|
| 705 | void
|
---|
| 706 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 707 | ) const
|
---|
| 708 | {
|
---|
| 709 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 710 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 711 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 712 |
|
---|
| 713 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 714 | DeleteLocalMergeTree(*it);
|
---|
| 715 | vci->mChildren.clear();
|
---|
| 716 | delete vci;
|
---|
| 717 | }
|
---|
| 718 | }
|
---|
| 719 |
|
---|
[564] | 720 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 721 | int minPvsSize,
|
---|
[562] | 722 | int maxPvsSize) const
|
---|
[547] | 723 | {
|
---|
[569] | 724 |
|
---|
[710] | 725 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
|
---|
| 726 | (vc->GetPvs().GetSize() < minPvsSize))
|
---|
[564] | 727 | {
|
---|
[710] | 728 | return false;
|
---|
[561] | 729 | }
|
---|
[570] | 730 |
|
---|
[710] | 731 | return true;
|
---|
[547] | 732 | }
|
---|
| 733 |
|
---|
| 734 |
|
---|
[710] | 735 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
| 736 | {
|
---|
| 737 | return false;
|
---|
| 738 | }
|
---|
| 739 |
|
---|
| 740 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 741 | ViewCellContainer &viewCells) const
|
---|
| 742 | {
|
---|
| 743 | return 0;
|
---|
| 744 | };
|
---|
| 745 |
|
---|
[697] | 746 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 747 | const float width) const
|
---|
| 748 | {
|
---|
| 749 | Vector3 min = viewPoint - width * 0.5f;
|
---|
| 750 | Vector3 max = viewPoint + width * 0.5;
|
---|
| 751 |
|
---|
| 752 | return AxisAlignedBox3(min, max);
|
---|
| 753 | }
|
---|
| 754 |
|
---|
| 755 |
|
---|
| 756 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint, PrVs &prvs)
|
---|
| 757 | {
|
---|
| 758 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
| 759 |
|
---|
[704] | 760 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
| 761 |
|
---|
[697] | 762 | ViewCellContainer viewCells;
|
---|
| 763 | ComputeBoxIntersections(box, viewCells);
|
---|
| 764 |
|
---|
[713] | 765 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 766 |
|
---|
| 767 | prvs.mViewCell = root;
|
---|
| 768 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 769 | }
|
---|
| 770 |
|
---|
| 771 |
|
---|
[581] | 772 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 773 | {
|
---|
| 774 | return mViewCellsTree->GetRoot();
|
---|
| 775 | }
|
---|
| 776 |
|
---|
| 777 |
|
---|
[564] | 778 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 779 | int minPvs,
|
---|
[562] | 780 | int maxPvs) const
|
---|
| 781 | {
|
---|
| 782 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 783 | }
|
---|
| 784 |
|
---|
[577] | 785 |
|
---|
[569] | 786 | void
|
---|
| 787 | ViewCellsManager::SetValidity(
|
---|
[570] | 788 | int minPvsSize,
|
---|
[569] | 789 | int maxPvsSize) const
|
---|
| 790 | {
|
---|
| 791 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 792 |
|
---|
[569] | 793 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
| 794 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 795 | }
|
---|
| 796 | }
|
---|
[562] | 797 |
|
---|
[569] | 798 | void
|
---|
| 799 | ViewCellsManager::SetValidityPercentage(
|
---|
| 800 | const float minValid,
|
---|
| 801 | const float maxValid
|
---|
| 802 | )
|
---|
| 803 | {
|
---|
| 804 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 805 |
|
---|
[569] | 806 | int start = mViewCells.size()*minValid;
|
---|
| 807 | int end = mViewCells.size()*maxValid;
|
---|
[570] | 808 |
|
---|
[569] | 809 | for (int i=0; i < mViewCells.size(); i++)
|
---|
| 810 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 | int
|
---|
| 814 | ViewCellsManager::CountValidViewcells() const
|
---|
| 815 | {
|
---|
| 816 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 817 | int valid = 0;
|
---|
| 818 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
| 819 | if ((*it)->GetValid())
|
---|
[706] | 820 | valid ++;
|
---|
[569] | 821 | }
|
---|
| 822 | return valid;
|
---|
| 823 | }
|
---|
| 824 |
|
---|
[577] | 825 |
|
---|
| 826 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 827 | {
|
---|
| 828 | X3dParser parser;
|
---|
[503] | 829 |
|
---|
[440] | 830 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 831 |
|
---|
[440] | 832 | bool success = parser.ParseFile(filename, *this);
|
---|
| 833 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 834 |
|
---|
| 835 | return success;
|
---|
| 836 | }
|
---|
| 837 |
|
---|
[485] | 838 |
|
---|
[487] | 839 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 840 | {
|
---|
[542] | 841 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 842 |
|
---|
| 843 | return true;
|
---|
| 844 | }
|
---|
| 845 |
|
---|
| 846 |
|
---|
[557] | 847 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 848 | {
|
---|
[610] | 849 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 850 | }
|
---|
| 851 |
|
---|
| 852 |
|
---|
[490] | 853 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 854 | {
|
---|
[569] | 855 | if (!ViewCellsConstructed())
|
---|
[542] | 856 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
[569] | 857 | else {
|
---|
| 858 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 859 | return false;
|
---|
| 860 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 861 | if (!viewcell || !viewcell->GetValid())
|
---|
| 862 | return false;
|
---|
| 863 | }
|
---|
| 864 | return true;
|
---|
[490] | 865 | }
|
---|
| 866 |
|
---|
[501] | 867 |
|
---|
[563] | 868 | float
|
---|
| 869 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[574] | 870 | const bool addRays,
|
---|
| 871 | const bool storeViewCells
|
---|
[563] | 872 | )
|
---|
[440] | 873 | {
|
---|
[563] | 874 | // view cells not yet constructed
|
---|
| 875 | if (!ViewCellsConstructed())
|
---|
| 876 | return 0.0f;
|
---|
[564] | 877 |
|
---|
[563] | 878 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 879 |
|
---|
[563] | 880 | float sum = 0.0f;
|
---|
[664] | 881 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 882 | {
|
---|
| 883 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
|
---|
| 884 | //ComputeSampleContributions(*(*it), addRays);
|
---|
| 885 | // sum += (*it)->mPvsContribution;
|
---|
[563] | 886 | }
|
---|
[664] | 887 |
|
---|
[563] | 888 | return sum;
|
---|
[440] | 889 | }
|
---|
| 890 |
|
---|
[485] | 891 |
|
---|
[479] | 892 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 893 | {
|
---|
[660] | 894 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 895 |
|
---|
| 896 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 897 |
|
---|
| 898 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 899 | {
|
---|
[660] | 900 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 901 | }
|
---|
[479] | 902 | }
|
---|
| 903 |
|
---|
[485] | 904 |
|
---|
[580] | 905 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 906 | float &expectedRenderCost,
|
---|
[580] | 907 | float &deviation,
|
---|
| 908 | float &variance,
|
---|
| 909 | int &totalPvs,
|
---|
| 910 | float &avgRenderCost)
|
---|
[579] | 911 | {
|
---|
| 912 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 913 |
|
---|
[580] | 914 |
|
---|
[579] | 915 | //-- compute expected value
|
---|
| 916 |
|
---|
| 917 | totalRenderCost = 0;
|
---|
[580] | 918 | totalPvs = 0;
|
---|
[579] | 919 |
|
---|
| 920 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 921 | {
|
---|
| 922 | ViewCell *vc = *it;
|
---|
| 923 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 924 | totalPvs += (int)vc->GetPvs().GetSize();
|
---|
[579] | 925 | }
|
---|
| 926 |
|
---|
[580] | 927 | // normalize with view space box
|
---|
| 928 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 929 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 930 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 931 |
|
---|
| 932 |
|
---|
[580] | 933 | //-- compute standard defiation
|
---|
[579] | 934 | variance = 0;
|
---|
[580] | 935 | deviation = 0;
|
---|
[579] | 936 |
|
---|
| 937 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 938 | {
|
---|
| 939 | ViewCell *vc = *it;
|
---|
| 940 |
|
---|
| 941 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 942 | float dev;
|
---|
[579] | 943 |
|
---|
[580] | 944 | if (1)
|
---|
| 945 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
| 946 | else
|
---|
| 947 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 948 |
|
---|
[580] | 949 | deviation += dev;
|
---|
| 950 | variance += dev * dev;
|
---|
[579] | 951 | }
|
---|
[580] | 952 |
|
---|
[579] | 953 | variance /= (float)mViewCells.size();
|
---|
[580] | 954 | deviation /= (float)mViewCells.size();
|
---|
[579] | 955 | }
|
---|
| 956 |
|
---|
| 957 |
|
---|
| 958 |
|
---|
[440] | 959 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 960 | {
|
---|
| 961 | mViewCells.push_back(viewCell);
|
---|
| 962 | }
|
---|
| 963 |
|
---|
[485] | 964 |
|
---|
[478] | 965 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 966 | {
|
---|
| 967 | return viewCell->GetArea();
|
---|
| 968 | }
|
---|
| 969 |
|
---|
| 970 |
|
---|
| 971 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 972 | {
|
---|
| 973 | return viewCell->GetVolume();
|
---|
| 974 | }
|
---|
| 975 |
|
---|
[485] | 976 |
|
---|
[503] | 977 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
| 978 | ViewCellContainer &viewCells,
|
---|
[440] | 979 | const int maxViewCells) const
|
---|
| 980 | {
|
---|
| 981 | // maximal max viewcells
|
---|
[503] | 982 | int limit = maxViewCells > 0 ?
|
---|
[440] | 983 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 984 |
|
---|
| 985 | for (int i = 0; i < limit; ++ i)
|
---|
| 986 | {
|
---|
| 987 | Intersectable *object = objects[i];
|
---|
[503] | 988 |
|
---|
[440] | 989 | // extract the mesh instances
|
---|
| 990 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 991 | {
|
---|
| 992 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 993 |
|
---|
| 994 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 995 | viewCells.push_back(viewCell);
|
---|
| 996 | }
|
---|
| 997 | //TODO: transformed meshes
|
---|
| 998 | }
|
---|
| 999 | }
|
---|
| 1000 |
|
---|
[485] | 1001 |
|
---|
[503] | 1002 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1003 | const float height) const
|
---|
| 1004 | {
|
---|
| 1005 | // one mesh per view cell
|
---|
| 1006 | Mesh *mesh = new Mesh();
|
---|
[503] | 1007 |
|
---|
[440] | 1008 | //-- construct prism
|
---|
| 1009 |
|
---|
[503] | 1010 | // bottom
|
---|
[440] | 1011 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1012 | // top
|
---|
| 1013 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1014 | // sides
|
---|
| 1015 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1016 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1017 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1018 |
|
---|
| 1019 | //--- extrude new vertices for top of prism
|
---|
| 1020 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1021 |
|
---|
[503] | 1022 | Triangle3 topTri;
|
---|
[440] | 1023 |
|
---|
| 1024 | // add base vertices and calculate top vertices
|
---|
| 1025 | for (int i = 0; i < 3; ++ i)
|
---|
| 1026 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1027 |
|
---|
| 1028 | // add top vertices
|
---|
[440] | 1029 | for (int i = 0; i < 3; ++ i)
|
---|
| 1030 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1031 |
|
---|
[440] | 1032 | mesh->Preprocess();
|
---|
| 1033 |
|
---|
| 1034 | return GenerateViewCell(mesh);
|
---|
| 1035 | }
|
---|
| 1036 |
|
---|
[485] | 1037 |
|
---|
[551] | 1038 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1039 | {
|
---|
| 1040 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1041 |
|
---|
| 1042 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1043 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1044 | {
|
---|
| 1045 | Finalize(*it, createMesh);
|
---|
| 1046 | }
|
---|
[555] | 1047 |
|
---|
| 1048 | mTotalAreaValid = false;
|
---|
[551] | 1049 | }
|
---|
| 1050 |
|
---|
| 1051 |
|
---|
| 1052 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1053 | {
|
---|
| 1054 | // implemented in subclasses
|
---|
| 1055 | }
|
---|
| 1056 |
|
---|
| 1057 |
|
---|
[582] | 1058 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1059 | {
|
---|
[580] | 1060 | // generate parent view cell
|
---|
| 1061 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
[710] | 1062 |
|
---|
[610] | 1063 | vc->GetPvs() = left->GetPvs();
|
---|
[440] | 1064 | // merge pvs
|
---|
[610] | 1065 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1066 |
|
---|
[462] | 1067 | //-- merge ray sets
|
---|
[564] | 1068 | if (0)
|
---|
| 1069 | {
|
---|
[582] | 1070 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1071 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1072 |
|
---|
[582] | 1073 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1074 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1075 | vc->mPiercingRays.begin());
|
---|
| 1076 | }
|
---|
[440] | 1077 |
|
---|
[710] | 1078 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1079 | vc->mChildren.push_back(left);
|
---|
| 1080 | vc->mChildren.push_back(right);
|
---|
| 1081 |
|
---|
[440] | 1082 | return vc;
|
---|
| 1083 | }
|
---|
| 1084 |
|
---|
[485] | 1085 |
|
---|
[582] | 1086 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1087 | {
|
---|
| 1088 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
| 1089 |
|
---|
| 1090 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1091 |
|
---|
| 1092 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1093 | {
|
---|
| 1094 | // merge pvs
|
---|
[610] | 1095 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1096 | vc->mChildren.push_back(*it);
|
---|
| 1097 | //vc->SetupChildLink(*it);
|
---|
[582] | 1098 | }
|
---|
| 1099 |
|
---|
| 1100 | return vc;
|
---|
| 1101 | }
|
---|
| 1102 |
|
---|
| 1103 |
|
---|
[480] | 1104 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1105 | {
|
---|
| 1106 | mRenderer = renderer;
|
---|
| 1107 | }
|
---|
[441] | 1108 |
|
---|
[485] | 1109 |
|
---|
[580] | 1110 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1111 | {
|
---|
[580] | 1112 | return mViewCellsTree;
|
---|
[440] | 1113 | }
|
---|
| 1114 |
|
---|
| 1115 |
|
---|
| 1116 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1117 | {
|
---|
[444] | 1118 | mVisualizationSamples = visSamples;
|
---|
[440] | 1119 | }
|
---|
| 1120 |
|
---|
[485] | 1121 |
|
---|
[440] | 1122 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1123 | {
|
---|
| 1124 | mConstructionSamples = constructionSamples;
|
---|
| 1125 | }
|
---|
| 1126 |
|
---|
[485] | 1127 |
|
---|
[574] | 1128 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1129 | {
|
---|
| 1130 | mInitialSamples = initialSamples;
|
---|
| 1131 | }
|
---|
| 1132 |
|
---|
| 1133 |
|
---|
[440] | 1134 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1135 | {
|
---|
| 1136 | mPostProcessSamples = postProcessSamples;
|
---|
| 1137 | }
|
---|
| 1138 |
|
---|
[485] | 1139 |
|
---|
[440] | 1140 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1141 | {
|
---|
| 1142 | return mVisualizationSamples;
|
---|
| 1143 | }
|
---|
| 1144 |
|
---|
[485] | 1145 |
|
---|
[440] | 1146 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1147 | {
|
---|
| 1148 | return mConstructionSamples;
|
---|
| 1149 | }
|
---|
| 1150 |
|
---|
[485] | 1151 |
|
---|
[440] | 1152 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1153 | {
|
---|
| 1154 | return mPostProcessSamples;
|
---|
| 1155 | }
|
---|
| 1156 |
|
---|
[485] | 1157 |
|
---|
[719] | 1158 | void ViewCellsManager::UpdatePvs()
|
---|
| 1159 | {
|
---|
[720] | 1160 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1161 | return;
|
---|
| 1162 |
|
---|
| 1163 | mViewCellPvsIsUpdated = true;
|
---|
| 1164 |
|
---|
| 1165 | ViewCellContainer leaves;
|
---|
| 1166 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1167 |
|
---|
| 1168 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1169 |
|
---|
| 1170 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1171 | {
|
---|
| 1172 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1173 | }
|
---|
| 1174 | }
|
---|
| 1175 |
|
---|
| 1176 |
|
---|
[485] | 1177 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1178 | {
|
---|
[719] | 1179 | // update pvs of view cells tree if necessary
|
---|
| 1180 | UpdatePvs();
|
---|
[467] | 1181 |
|
---|
[719] | 1182 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1183 |
|
---|
| 1184 | stat.viewcells = 0;
|
---|
| 1185 | stat.minPvs = 100000000;
|
---|
| 1186 | stat.maxPvs = 0;
|
---|
| 1187 | stat.avgPvs = 0.0f;
|
---|
| 1188 |
|
---|
| 1189 | for (; it != mViewCells.end(); ++ it)
|
---|
| 1190 | {
|
---|
| 1191 | ViewCell *viewcell = *it;
|
---|
| 1192 |
|
---|
| 1193 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
| 1194 |
|
---|
| 1195 | if (pvsSize < stat.minPvs)
|
---|
| 1196 | stat.minPvs = pvsSize;
|
---|
| 1197 | if (pvsSize > stat.maxPvs)
|
---|
| 1198 | stat.maxPvs = pvsSize;
|
---|
| 1199 | stat.avgPvs += pvsSize;
|
---|
| 1200 |
|
---|
| 1201 | ++ stat.viewcells;
|
---|
| 1202 | }
|
---|
| 1203 |
|
---|
| 1204 | if (stat.viewcells)
|
---|
| 1205 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1206 | }
|
---|
| 1207 |
|
---|
[485] | 1208 |
|
---|
[480] | 1209 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1210 | {
|
---|
| 1211 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1212 | PvsStatistics pvsStat;
|
---|
| 1213 | GetPvsStatistics(pvsStat);
|
---|
| 1214 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1215 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1216 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1217 | }
|
---|
| 1218 |
|
---|
[485] | 1219 |
|
---|
[532] | 1220 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1221 | {
|
---|
| 1222 | return 0;
|
---|
| 1223 | }
|
---|
| 1224 |
|
---|
[547] | 1225 |
|
---|
[468] | 1226 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1227 | {
|
---|
| 1228 | return mViewCells;
|
---|
| 1229 | }
|
---|
| 1230 |
|
---|
[485] | 1231 |
|
---|
[487] | 1232 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1233 | {
|
---|
[542] | 1234 | mViewSpaceBox = box;
|
---|
[591] | 1235 |
|
---|
[660] | 1236 | CreateClipPlane();
|
---|
[591] | 1237 |
|
---|
[577] | 1238 | mTotalAreaValid = false;
|
---|
[487] | 1239 | }
|
---|
| 1240 |
|
---|
| 1241 |
|
---|
[660] | 1242 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1243 | {
|
---|
| 1244 | int axis = 0;
|
---|
[667] | 1245 | float pos;
|
---|
[591] | 1246 |
|
---|
[667] | 1247 | environment->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1248 |
|
---|
[667] | 1249 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1250 |
|
---|
[660] | 1251 | if (mUseClipPlaneForViz)
|
---|
| 1252 | environment->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1253 |
|
---|
| 1254 | Vector3 normal(0,0,0);
|
---|
| 1255 | normal[axis] = 1;
|
---|
| 1256 |
|
---|
[660] | 1257 | mClipPlane = Plane3(normal, point);
|
---|
[591] | 1258 | }
|
---|
| 1259 |
|
---|
| 1260 |
|
---|
[519] | 1261 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1262 | {
|
---|
[542] | 1263 | return mViewSpaceBox;
|
---|
[519] | 1264 | }
|
---|
| 1265 |
|
---|
| 1266 |
|
---|
[480] | 1267 | void ViewCellsManager::ResetViewCells()
|
---|
| 1268 | {
|
---|
[720] | 1269 | // recollect view cells
|
---|
[480] | 1270 | mViewCells.clear();
|
---|
| 1271 | CollectViewCells();
|
---|
[590] | 1272 |
|
---|
[720] | 1273 |
|
---|
| 1274 | // stats are computed once more
|
---|
[660] | 1275 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1276 | EvaluateViewCellsStats();
|
---|
[590] | 1277 |
|
---|
[520] | 1278 | // has to be recomputed
|
---|
[480] | 1279 | mTotalAreaValid = false;
|
---|
| 1280 | }
|
---|
| 1281 |
|
---|
[485] | 1282 |
|
---|
[547] | 1283 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1284 | {
|
---|
| 1285 | return mMaxPvsSize;
|
---|
| 1286 | }
|
---|
| 1287 |
|
---|
[590] | 1288 |
|
---|
[563] | 1289 | void
|
---|
| 1290 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1291 | {
|
---|
| 1292 | if (!ViewCellsConstructed())
|
---|
| 1293 | return;
|
---|
[564] | 1294 |
|
---|
[563] | 1295 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1296 |
|
---|
[563] | 1297 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1298 | AddSampleContributions(*(*it));
|
---|
| 1299 | }
|
---|
| 1300 | }
|
---|
[547] | 1301 |
|
---|
[581] | 1302 |
|
---|
[562] | 1303 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1304 | {
|
---|
| 1305 | return mMinPvsSize;
|
---|
| 1306 | }
|
---|
| 1307 |
|
---|
| 1308 |
|
---|
| 1309 |
|
---|
[561] | 1310 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1311 | {
|
---|
| 1312 | return mMaxPvsRatio;
|
---|
| 1313 | }
|
---|
| 1314 |
|
---|
| 1315 |
|
---|
[563] | 1316 | void
|
---|
| 1317 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1318 | {
|
---|
[563] | 1319 | // assumes viewcells have been stored...
|
---|
| 1320 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1321 | ViewCellContainer::const_iterator it;
|
---|
| 1322 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1323 | ViewCell *viewcell = *it;
|
---|
[569] | 1324 | if (viewcell->GetValid()) {
|
---|
| 1325 | // if ray not outside of view space
|
---|
| 1326 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1327 | }
|
---|
[563] | 1328 | }
|
---|
| 1329 | }
|
---|
[503] | 1330 |
|
---|
[574] | 1331 |
|
---|
[570] | 1332 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
[574] | 1333 | const bool addRays,
|
---|
| 1334 | const bool storeViewCells)
|
---|
[563] | 1335 | {
|
---|
[570] | 1336 | ViewCellContainer viewcells;
|
---|
[564] | 1337 |
|
---|
[570] | 1338 | ray.mPvsContribution = 0;
|
---|
| 1339 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1340 |
|
---|
[570] | 1341 | static Ray hray;
|
---|
[564] | 1342 | hray.Init(ray);
|
---|
| 1343 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1344 | //Ray hray(ray);
|
---|
| 1345 |
|
---|
| 1346 | float tmin = 0, tmax = 1.0;
|
---|
| 1347 |
|
---|
| 1348 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1349 | return 0;
|
---|
[564] | 1350 |
|
---|
| 1351 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1352 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1353 |
|
---|
| 1354 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1355 |
|
---|
[570] | 1356 | // copy viewcells memory efficiently
|
---|
[574] | 1357 | //const bool storeViewcells = !addRays;
|
---|
[564] | 1358 |
|
---|
[574] | 1359 | if (storeViewCells)
|
---|
[570] | 1360 | {
|
---|
| 1361 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1362 | ray.mViewCells = viewcells;
|
---|
| 1363 | }
|
---|
[564] | 1364 |
|
---|
[570] | 1365 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1366 |
|
---|
[664] | 1367 | for (; it != viewcells.end(); ++ it)
|
---|
| 1368 | {
|
---|
| 1369 | ViewCell *viewcell = *it;
|
---|
[694] | 1370 |
|
---|
[708] | 1371 | if (viewcell->GetValid())
|
---|
[664] | 1372 | {
|
---|
[694] | 1373 | // HACK
|
---|
[706] | 1374 | #if TEST_EMPTY_VIEW_CELLS
|
---|
[694] | 1375 | for (int i = 0; i < mEmptyViewCells.size(); ++i)
|
---|
| 1376 | {
|
---|
| 1377 | if (viewcell == mEmptyViewCells[i])
|
---|
| 1378 | {
|
---|
| 1379 | viewcell->mPiercingRays.push_back(new Ray(ray));
|
---|
| 1380 | Debug << "empty view cell ray found: " << ray.mOriginObject << ", " << ray.mTerminationObject << endl;
|
---|
| 1381 | }
|
---|
| 1382 | }
|
---|
[706] | 1383 | #endif
|
---|
[664] | 1384 | // if ray not outside of view space
|
---|
| 1385 | float contribution;
|
---|
[666] | 1386 | if (ray.mTerminationObject &&
|
---|
| 1387 | viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
[664] | 1388 | ray.mPdf,
|
---|
| 1389 | contribution))
|
---|
| 1390 | {
|
---|
| 1391 | ++ ray.mPvsContribution;
|
---|
| 1392 | ray.mRelativePvsContribution += contribution;
|
---|
| 1393 | }
|
---|
[718] | 1394 |
|
---|
| 1395 | //for directional sampling it is important to count only contributions
|
---|
| 1396 | // made in one direction!!!
|
---|
| 1397 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
| 1398 | #if 0
|
---|
[666] | 1399 | if (ray.mOriginObject &&
|
---|
| 1400 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1401 | ray.mPdf,
|
---|
| 1402 | contribution))
|
---|
| 1403 | {
|
---|
| 1404 | ++ ray.mPvsContribution;
|
---|
| 1405 | ray.mRelativePvsContribution += contribution;
|
---|
| 1406 | }
|
---|
[718] | 1407 | #endif
|
---|
[664] | 1408 | }
|
---|
[569] | 1409 | }
|
---|
[564] | 1410 |
|
---|
[664] | 1411 |
|
---|
| 1412 | if (addRays)
|
---|
| 1413 | {
|
---|
| 1414 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1415 | {
|
---|
| 1416 | ViewCell *viewcell = *it;
|
---|
| 1417 |
|
---|
[706] | 1418 | if (viewcell->GetValid())
|
---|
[664] | 1419 | {
|
---|
| 1420 | // if ray not outside of view space
|
---|
[666] | 1421 | if (ray.mTerminationObject)
|
---|
| 1422 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
[718] | 1423 |
|
---|
| 1424 | #if 0
|
---|
[666] | 1425 | if (ray.mOriginObject)
|
---|
| 1426 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[718] | 1427 | #endif
|
---|
[664] | 1428 | }
|
---|
| 1429 | }
|
---|
[563] | 1430 | }
|
---|
[570] | 1431 |
|
---|
| 1432 | return ray.mRelativePvsContribution;
|
---|
[468] | 1433 | }
|
---|
| 1434 |
|
---|
| 1435 |
|
---|
[469] | 1436 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1437 | const int maxSize,
|
---|
[503] | 1438 | VssRayContainer &usedRays,
|
---|
[485] | 1439 | VssRayContainer *savedRays) const
|
---|
[469] | 1440 | {
|
---|
[485] | 1441 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1442 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1443 |
|
---|
[485] | 1444 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1445 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1446 | {
|
---|
[473] | 1447 | if (Random(1.0f) < prop)
|
---|
[485] | 1448 | usedRays.push_back(*it);
|
---|
| 1449 | else if (savedRays)
|
---|
| 1450 | savedRays->push_back(*it);
|
---|
[469] | 1451 | }
|
---|
| 1452 | }
|
---|
| 1453 |
|
---|
[477] | 1454 |
|
---|
[605] | 1455 | float ViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
| 1456 | {
|
---|
| 1457 | return mViewCellsTree->GetPvsSize(viewCell) * objRendercost;
|
---|
| 1458 | }
|
---|
| 1459 |
|
---|
| 1460 |
|
---|
[477] | 1461 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1462 | {
|
---|
| 1463 | // if already computed
|
---|
| 1464 | if (mTotalAreaValid)
|
---|
| 1465 | return mTotalArea;
|
---|
| 1466 |
|
---|
| 1467 | mTotalArea = 0;
|
---|
| 1468 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1469 |
|
---|
| 1470 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1471 | {
|
---|
| 1472 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1473 | mTotalArea += GetArea(*it);
|
---|
[480] | 1474 | }
|
---|
| 1475 |
|
---|
[470] | 1476 | mTotalAreaValid = true;
|
---|
| 1477 |
|
---|
| 1478 | return mTotalArea;
|
---|
| 1479 | }
|
---|
| 1480 |
|
---|
[482] | 1481 |
|
---|
[475] | 1482 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1483 | {
|
---|
[660] | 1484 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1485 | }
|
---|
| 1486 |
|
---|
[477] | 1487 |
|
---|
[508] | 1488 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 1489 | {
|
---|
[651] | 1490 | if (ViewCellsTreeConstructed())
|
---|
| 1491 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 1492 | else
|
---|
| 1493 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 1494 | mViewCells[i]->SetId(i);
|
---|
[508] | 1495 | }
|
---|
| 1496 |
|
---|
| 1497 |
|
---|
| 1498 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 1499 | {
|
---|
[482] | 1500 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1501 |
|
---|
| 1502 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1503 | {
|
---|
[574] | 1504 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 1505 | {
|
---|
[582] | 1506 | ExportColor(exporter, *it);
|
---|
[591] | 1507 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 1508 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 1509 | }
|
---|
[482] | 1510 | }
|
---|
| 1511 | }
|
---|
| 1512 |
|
---|
| 1513 |
|
---|
[517] | 1514 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 1515 | {
|
---|
| 1516 | // convert to meshes
|
---|
| 1517 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1518 |
|
---|
| 1519 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1520 | {
|
---|
[517] | 1521 | if (!(*it)->GetMesh())
|
---|
| 1522 | CreateMesh(*it);
|
---|
[503] | 1523 | }
|
---|
| 1524 | }
|
---|
| 1525 |
|
---|
[508] | 1526 |
|
---|
[564] | 1527 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
| 1528 | {
|
---|
[508] | 1529 | return false;
|
---|
| 1530 | }
|
---|
| 1531 |
|
---|
| 1532 |
|
---|
[610] | 1533 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 1534 | {
|
---|
[610] | 1535 | mNumActiveViewCells = n;
|
---|
| 1536 | mViewCells.clear();
|
---|
| 1537 | CollectViewCells();
|
---|
| 1538 | }
|
---|
[508] | 1539 |
|
---|
| 1540 |
|
---|
[660] | 1541 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 1542 | {
|
---|
| 1543 | ++ ViewCell::sLastUpdated;
|
---|
| 1544 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1545 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1546 | {
|
---|
| 1547 | (*it)->SetActive();
|
---|
| 1548 | }
|
---|
| 1549 | }
|
---|
[508] | 1550 |
|
---|
[440] | 1551 | /**********************************************************************/
|
---|
| 1552 | /* BspViewCellsManager implementation */
|
---|
| 1553 | /**********************************************************************/
|
---|
| 1554 |
|
---|
[482] | 1555 |
|
---|
[574] | 1556 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 1557 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 1558 | {
|
---|
[574] | 1559 | environment->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 1560 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 1561 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 1562 | }
|
---|
| 1563 |
|
---|
[462] | 1564 |
|
---|
[440] | 1565 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 1566 | {
|
---|
| 1567 | return mBspTree->GetRoot() != NULL;
|
---|
| 1568 | }
|
---|
| 1569 |
|
---|
[480] | 1570 |
|
---|
[440] | 1571 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 1572 | {
|
---|
| 1573 | return new BspViewCell(mesh);
|
---|
| 1574 | }
|
---|
| 1575 |
|
---|
[480] | 1576 |
|
---|
[574] | 1577 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1578 | const VssRayContainer &rays)
|
---|
[440] | 1579 | {
|
---|
[441] | 1580 | // if view cells were already constructed
|
---|
[440] | 1581 | if (ViewCellsConstructed())
|
---|
| 1582 | return 0;
|
---|
| 1583 |
|
---|
| 1584 | int sampleContributions = 0;
|
---|
[503] | 1585 |
|
---|
[469] | 1586 | // construct view cells using the collected samples
|
---|
| 1587 | RayContainer constructionRays;
|
---|
| 1588 | VssRayContainer savedRays;
|
---|
[440] | 1589 |
|
---|
[574] | 1590 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 1591 |
|
---|
[469] | 1592 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 1593 |
|
---|
[473] | 1594 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 1595 |
|
---|
[469] | 1596 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1597 | {
|
---|
[473] | 1598 | if (Random(1.0f) < prop)
|
---|
[469] | 1599 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 1600 | else
|
---|
| 1601 | savedRays.push_back(*it);
|
---|
| 1602 | }
|
---|
[440] | 1603 |
|
---|
[503] | 1604 | if (mViewCells.empty())
|
---|
| 1605 | {
|
---|
| 1606 | // no view cells loaded
|
---|
[587] | 1607 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 1608 | // collect final view cells
|
---|
| 1609 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 1610 | }
|
---|
[469] | 1611 | else
|
---|
| 1612 | {
|
---|
| 1613 | mBspTree->Construct(mViewCells);
|
---|
| 1614 | }
|
---|
| 1615 |
|
---|
| 1616 | // destroy rays created only for construction
|
---|
| 1617 | CLEAR_CONTAINER(constructionRays);
|
---|
| 1618 |
|
---|
[440] | 1619 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 1620 |
|
---|
| 1621 | //EvaluateViewCellsStats();
|
---|
[660] | 1622 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 1623 |
|
---|
[469] | 1624 | // recast rest of the rays
|
---|
[649] | 1625 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 1626 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 1627 |
|
---|
[719] | 1628 | // real meshes are contructed at this stage
|
---|
| 1629 | if (0)
|
---|
| 1630 | {
|
---|
| 1631 | cout << "finalizing view cells ... ";
|
---|
| 1632 | FinalizeViewCells(true);
|
---|
| 1633 | cout << "finished" << endl;
|
---|
| 1634 | }
|
---|
| 1635 |
|
---|
[440] | 1636 | return sampleContributions;
|
---|
| 1637 | }
|
---|
| 1638 |
|
---|
[503] | 1639 |
|
---|
[480] | 1640 | void BspViewCellsManager::CollectViewCells()
|
---|
| 1641 | {
|
---|
[587] | 1642 | // view cells tree constructed
|
---|
| 1643 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 1644 | {
|
---|
[587] | 1645 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 1646 | }
|
---|
| 1647 | else
|
---|
| 1648 | {
|
---|
| 1649 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 1650 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 1651 | mNumActiveViewCells);
|
---|
[587] | 1652 | }
|
---|
[480] | 1653 | }
|
---|
[468] | 1654 |
|
---|
[503] | 1655 |
|
---|
[471] | 1656 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 1657 | {
|
---|
[471] | 1658 | // compute view cell area as subsititute for probability
|
---|
[591] | 1659 | if (1)
|
---|
| 1660 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 1661 | else
|
---|
| 1662 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 1663 | }
|
---|
[440] | 1664 |
|
---|
[503] | 1665 |
|
---|
[440] | 1666 |
|
---|
[468] | 1667 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 1668 | const Vector3 &termination,
|
---|
| 1669 | ViewCellContainer &viewcells)
|
---|
[440] | 1670 | {
|
---|
[468] | 1671 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 1672 | }
|
---|
| 1673 |
|
---|
| 1674 |
|
---|
[503] | 1675 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 1676 | const VssRayContainer &rays)
|
---|
| 1677 | {
|
---|
[469] | 1678 | if (!ViewCellsConstructed())
|
---|
[441] | 1679 | {
|
---|
| 1680 | Debug << "view cells not constructed" << endl;
|
---|
| 1681 | return 0;
|
---|
| 1682 | }
|
---|
[590] | 1683 |
|
---|
| 1684 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 1685 | if (mViewCellsFinished)
|
---|
| 1686 | {
|
---|
| 1687 | FinalizeViewCells(true);
|
---|
| 1688 | EvaluateViewCellsStats();
|
---|
| 1689 |
|
---|
| 1690 | return 0;
|
---|
| 1691 | }
|
---|
| 1692 |
|
---|
[440] | 1693 | //-- post processing of bsp view cells
|
---|
[600] | 1694 |
|
---|
[440] | 1695 | int vcSize = 0;
|
---|
| 1696 | int pvsSize = 0;
|
---|
| 1697 |
|
---|
[591] | 1698 | //-- merge view cells
|
---|
[649] | 1699 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 1700 | long startTime = GetTime();
|
---|
| 1701 |
|
---|
| 1702 | VssRayContainer postProcessRays;
|
---|
| 1703 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 1704 |
|
---|
[592] | 1705 | if (mMergeViewCells)
|
---|
[591] | 1706 | {
|
---|
[660] | 1707 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 1708 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 1709 | }
|
---|
| 1710 | else
|
---|
| 1711 | {
|
---|
[660] | 1712 | cout << "constructing spatial merge tree" << endl;
|
---|
[649] | 1713 | // create spatial merge hierarchy
|
---|
[650] | 1714 | mViewCellsTree->SetRoot(ConstructSpatialMergeTree(mBspTree->GetRoot()));
|
---|
[649] | 1715 | }
|
---|
[440] | 1716 |
|
---|
[660] | 1717 | // export statistics after merge
|
---|
[666] | 1718 | if (1)
|
---|
| 1719 | {
|
---|
| 1720 | char mstats[100];
|
---|
| 1721 | environment->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
| 1722 | mViewCellsTree->ExportStats(mstats);
|
---|
| 1723 | }
|
---|
[650] | 1724 |
|
---|
[649] | 1725 | //-- stats and visualizations
|
---|
| 1726 | cout << "finished" << endl;
|
---|
[650] | 1727 | cout << "merged view cells in "
|
---|
[649] | 1728 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[440] | 1729 |
|
---|
[650] | 1730 | Debug << "Postprocessing: Merged view cells in "
|
---|
[649] | 1731 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 1732 |
|
---|
[503] | 1733 |
|
---|
[660] | 1734 | //-- visualization and statistics
|
---|
[600] | 1735 | // reset view cells and stats
|
---|
[480] | 1736 | ResetViewCells();
|
---|
[660] | 1737 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 1738 |
|
---|
[660] | 1739 |
|
---|
[600] | 1740 | int savedColorCode = mColorCode;
|
---|
[605] | 1741 |
|
---|
[600] | 1742 | //BspLeaf::NewMail();
|
---|
| 1743 | if (1) // export merged view cells
|
---|
| 1744 | {
|
---|
| 1745 | mColorCode = 0;
|
---|
[605] | 1746 |
|
---|
[600] | 1747 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
[605] | 1748 |
|
---|
[600] | 1749 |
|
---|
| 1750 | cout << "exporting view cells after merge ... ";
|
---|
| 1751 |
|
---|
| 1752 | if (exporter)
|
---|
| 1753 | {
|
---|
| 1754 | if (mExportGeometry)
|
---|
| 1755 | exporter->ExportGeometry(objects);
|
---|
| 1756 |
|
---|
| 1757 | //exporter->SetWireframe();
|
---|
| 1758 | exporter->SetFilled();
|
---|
| 1759 | ExportViewCellsForViz(exporter);
|
---|
| 1760 |
|
---|
| 1761 |
|
---|
| 1762 | delete exporter;
|
---|
| 1763 | }
|
---|
| 1764 | cout << "finished" << endl;
|
---|
| 1765 | }
|
---|
| 1766 |
|
---|
| 1767 | if (1) // export merged view cells
|
---|
| 1768 | {
|
---|
| 1769 | mColorCode = 1;
|
---|
| 1770 |
|
---|
| 1771 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.x3d");
|
---|
| 1772 |
|
---|
| 1773 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 1774 |
|
---|
| 1775 | if (exporter)
|
---|
| 1776 | {
|
---|
| 1777 | //exporter->SetWireframe();
|
---|
| 1778 |
|
---|
| 1779 | if (mExportGeometry)
|
---|
| 1780 | exporter->ExportGeometry(objects);
|
---|
| 1781 |
|
---|
| 1782 | //exporter->SetWireframe();
|
---|
| 1783 | exporter->SetFilled();
|
---|
| 1784 | ExportViewCellsForViz(exporter);
|
---|
| 1785 |
|
---|
| 1786 | delete exporter;
|
---|
| 1787 | }
|
---|
| 1788 | cout << "finished" << endl;
|
---|
| 1789 | }
|
---|
| 1790 |
|
---|
[693] | 1791 |
|
---|
| 1792 | // only for testing
|
---|
| 1793 | TestSubdivision();
|
---|
| 1794 |
|
---|
[600] | 1795 | mColorCode = savedColorCode;
|
---|
| 1796 |
|
---|
[719] | 1797 | // compute final meshes and volume / area
|
---|
| 1798 | if (1) FinalizeViewCells(true);
|
---|
| 1799 |
|
---|
[587] | 1800 | // write view cells to disc
|
---|
| 1801 | if (mExportViewCells)
|
---|
| 1802 | {
|
---|
| 1803 | char buff[100];
|
---|
| 1804 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
| 1805 | string vcFilename(buff);
|
---|
| 1806 |
|
---|
| 1807 | ExportViewCells(buff);
|
---|
| 1808 | }
|
---|
| 1809 |
|
---|
[650] | 1810 | return 0;
|
---|
[440] | 1811 | }
|
---|
| 1812 |
|
---|
[477] | 1813 |
|
---|
| 1814 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 1815 | {
|
---|
| 1816 | }
|
---|
| 1817 |
|
---|
| 1818 |
|
---|
[440] | 1819 | int BspViewCellsManager::GetType() const
|
---|
| 1820 | {
|
---|
| 1821 | return BSP;
|
---|
| 1822 | }
|
---|
| 1823 |
|
---|
| 1824 |
|
---|
| 1825 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 1826 | const VssRayContainer &sampleRays)
|
---|
[440] | 1827 | {
|
---|
[469] | 1828 | if (!ViewCellsConstructed())
|
---|
| 1829 | return;
|
---|
[574] | 1830 |
|
---|
[600] | 1831 | int savedColorCode = mColorCode;
|
---|
| 1832 |
|
---|
| 1833 |
|
---|
| 1834 |
|
---|
| 1835 | if (1) // export final view cells
|
---|
[440] | 1836 | {
|
---|
[600] | 1837 | mColorCode = 1;
|
---|
[587] | 1838 |
|
---|
[712] | 1839 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 1840 |
|
---|
| 1841 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 1842 |
|
---|
[469] | 1843 | if (exporter)
|
---|
[440] | 1844 | {
|
---|
[600] | 1845 | //exporter->SetWireframe();
|
---|
| 1846 |
|
---|
| 1847 | if (mExportGeometry)
|
---|
| 1848 | exporter->ExportGeometry(objects);
|
---|
[590] | 1849 |
|
---|
[600] | 1850 | //exporter->SetWireframe();
|
---|
| 1851 | exporter->SetFilled();
|
---|
[508] | 1852 | ExportViewCellsForViz(exporter);
|
---|
[587] | 1853 |
|
---|
[469] | 1854 | delete exporter;
|
---|
[440] | 1855 | }
|
---|
[469] | 1856 | cout << "finished" << endl;
|
---|
[503] | 1857 | }
|
---|
[477] | 1858 |
|
---|
[600] | 1859 | mColorCode = savedColorCode;
|
---|
| 1860 |
|
---|
[469] | 1861 | //-- visualization of the BSP splits
|
---|
| 1862 | bool exportSplits = false;
|
---|
| 1863 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 1864 |
|
---|
[469] | 1865 | if (exportSplits)
|
---|
[440] | 1866 | {
|
---|
[469] | 1867 | cout << "exporting splits ... ";
|
---|
[477] | 1868 | ExportSplits(objects);
|
---|
[469] | 1869 | cout << "finished" << endl;
|
---|
[440] | 1870 | }
|
---|
[477] | 1871 |
|
---|
[600] | 1872 | // export single view cells
|
---|
[477] | 1873 | ExportBspPvs(objects);
|
---|
[440] | 1874 | }
|
---|
| 1875 |
|
---|
| 1876 |
|
---|
[503] | 1877 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
| 1878 | {
|
---|
[440] | 1879 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
| 1880 | }
|
---|
| 1881 |
|
---|
[477] | 1882 |
|
---|
| 1883 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 1884 | {
|
---|
| 1885 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 1886 |
|
---|
[503] | 1887 | if (exporter)
|
---|
| 1888 | {
|
---|
[598] | 1889 | //exporter->SetFilled();
|
---|
| 1890 |
|
---|
| 1891 | if (mExportGeometry)
|
---|
| 1892 | exporter->ExportGeometry(objects);
|
---|
| 1893 |
|
---|
[503] | 1894 | Material m;
|
---|
[440] | 1895 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1896 | exporter->SetForcedMaterial(m);
|
---|
| 1897 | exporter->SetWireframe();
|
---|
[503] | 1898 |
|
---|
[440] | 1899 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 1900 |
|
---|
[482] | 1901 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 1902 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 1903 | exporter->SetForcedMaterial(m);
|
---|
[482] | 1904 | //exporter->ResetForcedMaterial();
|
---|
| 1905 |
|
---|
[440] | 1906 | delete exporter;
|
---|
| 1907 | }
|
---|
| 1908 | }
|
---|
| 1909 |
|
---|
[477] | 1910 |
|
---|
| 1911 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 1912 | {
|
---|
[477] | 1913 | const int leafOut = 10;
|
---|
[503] | 1914 |
|
---|
[477] | 1915 | ViewCell::NewMail();
|
---|
[440] | 1916 |
|
---|
[477] | 1917 | //-- some rays for output
|
---|
| 1918 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 1919 |
|
---|
[477] | 1920 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 1921 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 1922 |
|
---|
[478] | 1923 | // sort view cells to get largest view cells
|
---|
[587] | 1924 | if (0)
|
---|
| 1925 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
| 1926 |
|
---|
[503] | 1927 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 1928 |
|
---|
[478] | 1929 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 1930 | {
|
---|
[478] | 1931 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 1932 | VssRayContainer vcRays;
|
---|
| 1933 | Intersectable::NewMail();
|
---|
[582] | 1934 | ViewCell *vc;
|
---|
| 1935 |
|
---|
| 1936 | if (0)
|
---|
| 1937 | vc = mViewCells[i];
|
---|
| 1938 | else
|
---|
| 1939 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 1940 |
|
---|
[478] | 1941 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 1942 |
|
---|
[587] | 1943 | if(0)
|
---|
[477] | 1944 | {
|
---|
[587] | 1945 | // check whether we can add the current ray to the output rays
|
---|
| 1946 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 1947 | {
|
---|
[587] | 1948 | BspRay *ray = mBspRays[k];
|
---|
| 1949 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 1950 | {
|
---|
| 1951 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 1952 | if (vc == leaf->GetViewCell())
|
---|
| 1953 | vcRays.push_back(ray->vssRay);
|
---|
| 1954 | }
|
---|
[477] | 1955 | }
|
---|
| 1956 | }
|
---|
[587] | 1957 |
|
---|
[478] | 1958 | //bspLeaves[j]->Mail();
|
---|
| 1959 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 1960 |
|
---|
[478] | 1961 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 1962 |
|
---|
[478] | 1963 | exporter->SetWireframe();
|
---|
[477] | 1964 |
|
---|
[478] | 1965 | Material m;//= RandomMaterial();
|
---|
| 1966 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 1967 | exporter->SetForcedMaterial(m);
|
---|
[477] | 1968 |
|
---|
[587] | 1969 | ExportViewCellGeometry(exporter, vc);
|
---|
| 1970 |
|
---|
[478] | 1971 | // export rays piercing this view cell
|
---|
| 1972 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 1973 |
|
---|
[478] | 1974 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1975 | exporter->SetForcedMaterial(m);
|
---|
[440] | 1976 |
|
---|
[478] | 1977 | ObjectPvsMap::const_iterator it,
|
---|
| 1978 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 1979 |
|
---|
[478] | 1980 | exporter->SetFilled();
|
---|
[469] | 1981 |
|
---|
[478] | 1982 | // output PVS of view cell
|
---|
[503] | 1983 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 1984 | {
|
---|
| 1985 | Intersectable *intersect = (*it).first;
|
---|
[469] | 1986 |
|
---|
[478] | 1987 | if (!intersect->Mailed())
|
---|
| 1988 | {
|
---|
| 1989 | Material m = RandomMaterial();
|
---|
| 1990 | exporter->SetForcedMaterial(m);
|
---|
| 1991 |
|
---|
| 1992 | exporter->ExportIntersectable(intersect);
|
---|
| 1993 | intersect->Mail();
|
---|
[503] | 1994 | }
|
---|
[477] | 1995 | }
|
---|
[503] | 1996 |
|
---|
[478] | 1997 | DEL_PTR(exporter);
|
---|
| 1998 | cout << "finished" << endl;
|
---|
[477] | 1999 | }
|
---|
| 2000 |
|
---|
| 2001 | Debug << endl;
|
---|
[440] | 2002 | }
|
---|
| 2003 |
|
---|
[441] | 2004 |
|
---|
[503] | 2005 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 2006 | ViewCell *vc) const
|
---|
| 2007 | {
|
---|
[600] | 2008 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[482] | 2009 |
|
---|
| 2010 | float importance = 0;
|
---|
[598] | 2011 | static Material m;
|
---|
[482] | 2012 |
|
---|
| 2013 | switch (mColorCode)
|
---|
| 2014 | {
|
---|
[598] | 2015 | case 0: // Random
|
---|
| 2016 | {
|
---|
| 2017 | if (vcValid)
|
---|
| 2018 | {
|
---|
| 2019 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2020 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[600] | 2021 | m.mDiffuseColor.b = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[598] | 2022 | }
|
---|
| 2023 | else
|
---|
| 2024 | {
|
---|
| 2025 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2026 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2027 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2028 | }
|
---|
| 2029 |
|
---|
| 2030 | exporter->SetForcedMaterial(m);
|
---|
| 2031 | return;
|
---|
| 2032 | }
|
---|
| 2033 |
|
---|
[482] | 2034 | case 1: // pvs
|
---|
| 2035 | {
|
---|
[503] | 2036 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[660] | 2037 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[598] | 2038 |
|
---|
[482] | 2039 | }
|
---|
| 2040 | break;
|
---|
| 2041 | case 2: // merges
|
---|
| 2042 | {
|
---|
[598] | 2043 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
[660] | 2044 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 2045 | }
|
---|
[598] | 2046 | //break;
|
---|
[482] | 2047 | case 3: // merge tree differene
|
---|
| 2048 | {
|
---|
| 2049 | // TODO
|
---|
[598] | 2050 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2051 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2052 |
|
---|
[482] | 2053 | }
|
---|
| 2054 | break;
|
---|
| 2055 | default:
|
---|
| 2056 | break;
|
---|
| 2057 | }
|
---|
| 2058 |
|
---|
[598] | 2059 | // special color code for invalid view cells
|
---|
[482] | 2060 | m.mDiffuseColor.r = importance;
|
---|
| 2061 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[598] | 2062 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[503] | 2063 |
|
---|
[598] | 2064 | //Debug << "importance: " << importance << endl;
|
---|
[482] | 2065 | exporter->SetForcedMaterial(m);
|
---|
| 2066 | }
|
---|
| 2067 |
|
---|
[587] | 2068 |
|
---|
[693] | 2069 | void BspViewCellsManager::TestSubdivision()
|
---|
| 2070 | {
|
---|
| 2071 | ViewCellContainer leaves;
|
---|
| 2072 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 2073 |
|
---|
| 2074 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2075 |
|
---|
| 2076 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 2077 | float subdivVol = 0;
|
---|
| 2078 | float newVol = 0;
|
---|
| 2079 |
|
---|
| 2080 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2081 | {
|
---|
| 2082 | BspNodeGeometry geom;
|
---|
| 2083 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2084 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2085 |
|
---|
| 2086 | const float lVol = geom.GetVolume();
|
---|
| 2087 |
|
---|
| 2088 | newVol += lVol;
|
---|
| 2089 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 2090 |
|
---|
[704] | 2091 | float thres = 0.9f;
|
---|
[694] | 2092 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 2093 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 2094 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 2095 | }
|
---|
| 2096 |
|
---|
| 2097 | Debug << "exact volume: " << vol << endl;
|
---|
| 2098 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 2099 | Debug << "new volume: " << newVol << endl;
|
---|
| 2100 | }
|
---|
| 2101 |
|
---|
| 2102 |
|
---|
[580] | 2103 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2104 | ViewCell *vc,
|
---|
[660] | 2105 | const Plane3 *clipPlane) const
|
---|
[482] | 2106 | {
|
---|
| 2107 | if (vc->GetMesh())
|
---|
| 2108 | {
|
---|
[587] | 2109 | exporter->ExportMesh(vc->GetMesh());
|
---|
[726] | 2110 |
|
---|
[587] | 2111 | return;
|
---|
[482] | 2112 | }
|
---|
[587] | 2113 |
|
---|
[726] | 2114 |
|
---|
[660] | 2115 | if (clipPlane)
|
---|
[591] | 2116 | {
|
---|
[726] | 2117 | ViewCellContainer leaves;
|
---|
| 2118 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2119 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 2120 |
|
---|
[726] | 2121 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 2122 | {
|
---|
[726] | 2123 | BspNodeGeometry geom;
|
---|
| 2124 |
|
---|
[681] | 2125 | BspNodeGeometry front;
|
---|
| 2126 | BspNodeGeometry back;
|
---|
[591] | 2127 |
|
---|
[726] | 2128 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2129 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 2130 |
|
---|
[726] | 2131 | const float eps = 0.00000001f;
|
---|
| 2132 | const int cf = geom.Side(*clipPlane, eps);
|
---|
| 2133 |
|
---|
| 2134 | if (cf == -1)
|
---|
| 2135 | {
|
---|
| 2136 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 2137 | }
|
---|
| 2138 | else if (cf == 0)
|
---|
| 2139 | {
|
---|
| 2140 | geom.SplitGeometry(front,
|
---|
| 2141 | back,
|
---|
| 2142 | *clipPlane,
|
---|
| 2143 | mViewSpaceBox,
|
---|
| 2144 | eps);
|
---|
| 2145 |
|
---|
| 2146 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 2147 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 2148 | if (back.Valid())
|
---|
| 2149 | {
|
---|
| 2150 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 2151 | }
|
---|
| 2152 | }
|
---|
[681] | 2153 | }
|
---|
[591] | 2154 | }
|
---|
| 2155 | else
|
---|
| 2156 | {
|
---|
[726] | 2157 | BspNodeGeometry geom;
|
---|
| 2158 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2159 |
|
---|
[678] | 2160 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 2161 | }
|
---|
[482] | 2162 | }
|
---|
| 2163 |
|
---|
[503] | 2164 |
|
---|
| 2165 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2166 | {
|
---|
[726] | 2167 | // delete previous mesh
|
---|
| 2168 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 2169 | BspNodeGeometry geom;
|
---|
| 2170 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2171 |
|
---|
| 2172 | Mesh *mesh = new Mesh();
|
---|
[726] | 2173 |
|
---|
[587] | 2174 | geom.AddToMesh(*mesh);
|
---|
| 2175 | vc->SetMesh(mesh);
|
---|
[726] | 2176 | // put mesh into mesh container so we can savely delete it
|
---|
[587] | 2177 | mMeshContainer.push_back(mesh);
|
---|
[503] | 2178 | }
|
---|
| 2179 |
|
---|
[551] | 2180 |
|
---|
[587] | 2181 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 2182 | const bool createMesh)
|
---|
[502] | 2183 | {
|
---|
[587] | 2184 | float area = 0;
|
---|
| 2185 | float volume = 0;
|
---|
[572] | 2186 |
|
---|
[587] | 2187 | ViewCellContainer leaves;
|
---|
| 2188 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 2189 |
|
---|
| 2190 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2191 |
|
---|
[693] | 2192 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 2193 | {
|
---|
| 2194 | BspNodeGeometry geom;
|
---|
| 2195 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2196 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2197 |
|
---|
[719] | 2198 | const float lVol = geom.GetVolume();
|
---|
| 2199 | const float lArea = geom.GetArea();
|
---|
[693] | 2200 |
|
---|
| 2201 | //(*it)->SetVolume(vol);
|
---|
| 2202 | //(*it)->SetArea(area);
|
---|
| 2203 |
|
---|
| 2204 | area += lArea;
|
---|
| 2205 | volume += lVol;
|
---|
| 2206 |
|
---|
| 2207 | CreateMesh(*it);
|
---|
[587] | 2208 | }
|
---|
| 2209 |
|
---|
| 2210 | viewCell->SetVolume(volume);
|
---|
| 2211 | viewCell->SetArea(area);
|
---|
[502] | 2212 | }
|
---|
| 2213 |
|
---|
[580] | 2214 |
|
---|
[587] | 2215 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
[580] | 2216 | {
|
---|
[587] | 2217 | if (!mBspTree)
|
---|
| 2218 | return NULL;
|
---|
| 2219 |
|
---|
| 2220 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 2221 | return NULL;
|
---|
| 2222 |
|
---|
| 2223 | return mBspTree->GetViewCell(point);
|
---|
[580] | 2224 | }
|
---|
| 2225 |
|
---|
| 2226 |
|
---|
[587] | 2227 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2228 | vector<MergeCandidate> &candidates)
|
---|
| 2229 | {
|
---|
| 2230 | cout << "collecting merge candidates ... " << endl;
|
---|
| 2231 |
|
---|
| 2232 | if (mUseRaysForMerge)
|
---|
| 2233 | {
|
---|
| 2234 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 2235 | }
|
---|
| 2236 | else
|
---|
| 2237 | {
|
---|
| 2238 | vector<BspLeaf *> leaves;
|
---|
| 2239 | mBspTree->CollectLeaves(leaves);
|
---|
| 2240 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 2241 | }
|
---|
| 2242 |
|
---|
| 2243 | cout << "fininshed collecting candidates" << endl;
|
---|
| 2244 | }
|
---|
| 2245 |
|
---|
| 2246 |
|
---|
[440] | 2247 |
|
---|
[590] | 2248 | bool BspViewCellsManager::ExportViewCells(const string filename)
|
---|
| 2249 | {
|
---|
| 2250 | cout << "exporting view cells to xml ... ";
|
---|
| 2251 | std::ofstream stream;
|
---|
[503] | 2252 |
|
---|
[590] | 2253 | // for output we need unique ids for each view cell
|
---|
| 2254 | CreateUniqueViewCellIds();
|
---|
[503] | 2255 |
|
---|
[590] | 2256 |
|
---|
| 2257 | stream.open(filename.c_str());
|
---|
| 2258 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 2259 | stream << "<Visibility_Solution>" << endl;
|
---|
| 2260 |
|
---|
| 2261 | //-- the view space bounding box
|
---|
| 2262 | stream << "<ViewSpaceBox"
|
---|
| 2263 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 2264 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 2265 |
|
---|
| 2266 | //-- the type of the view cells hierarchy
|
---|
| 2267 | //stream << "<Hierarchy name=\"bspTree\" />" << endl;
|
---|
| 2268 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl; // write vsp bsp here because can use same tree and is bug free
|
---|
| 2269 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 2270 | stream << "<ViewCells>" << endl;
|
---|
[610] | 2271 |
|
---|
| 2272 | #if 0
|
---|
| 2273 |
|
---|
[590] | 2274 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[610] | 2275 |
|
---|
[590] | 2276 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2277 | ExportViewCell(*it, stream);
|
---|
[610] | 2278 | #else
|
---|
| 2279 | mViewCellsTree->Export(stream);
|
---|
| 2280 | #endif
|
---|
[590] | 2281 |
|
---|
| 2282 | stream << "</ViewCells>" << endl;
|
---|
| 2283 |
|
---|
| 2284 | //-- load the hierarchy
|
---|
| 2285 | stream << "<Hierarchy>" << endl;
|
---|
| 2286 | mBspTree->Export(stream);
|
---|
| 2287 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 2288 |
|
---|
| 2289 | stream << "</Visibility_Solution>" << endl;
|
---|
| 2290 | stream.close();
|
---|
| 2291 |
|
---|
| 2292 | cout << "finished" << endl;
|
---|
| 2293 |
|
---|
| 2294 | return true;
|
---|
| 2295 | }
|
---|
| 2296 |
|
---|
| 2297 |
|
---|
| 2298 | void BspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
| 2299 | {
|
---|
| 2300 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2301 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2302 | {
|
---|
| 2303 | ViewCell *vc = *it;
|
---|
| 2304 | ViewCellContainer leaves;
|
---|
| 2305 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2306 |
|
---|
| 2307 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2308 |
|
---|
| 2309 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2310 | {
|
---|
| 2311 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(*lit);
|
---|
| 2312 | bspVc->mLeaf->SetViewCell(vc);
|
---|
| 2313 | }
|
---|
| 2314 | }
|
---|
| 2315 | }
|
---|
| 2316 |
|
---|
[610] | 2317 |
|
---|
[650] | 2318 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 2319 | {
|
---|
[650] | 2320 | if (root->IsLeaf())
|
---|
| 2321 | {
|
---|
| 2322 | ViewCell *viewCell = dynamic_cast<BspLeaf *>(root)->GetViewCell();
|
---|
[610] | 2323 |
|
---|
[650] | 2324 | viewCell->SetMergeCost(0.0f);
|
---|
[610] | 2325 |
|
---|
[650] | 2326 | return viewCell;
|
---|
| 2327 | }
|
---|
| 2328 |
|
---|
| 2329 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 2330 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 2331 |
|
---|
| 2332 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 2333 | //Debug << "timestamp: " << root->mTimeStamp;
|
---|
| 2334 | //Debug << "merge cost: " << mergeCost << endl;
|
---|
[649] | 2335 |
|
---|
[650] | 2336 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 2337 |
|
---|
[650] | 2338 | float volume = 0;
|
---|
[649] | 2339 |
|
---|
[650] | 2340 | BspNode *front = interior->GetFront();
|
---|
| 2341 | BspNode *back = interior->GetBack();
|
---|
[649] | 2342 |
|
---|
[650] | 2343 | // recursivly compute child hierarchies
|
---|
| 2344 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 2345 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 2346 |
|
---|
[650] | 2347 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 2348 | viewCellInterior->SetupChildLink(backVc);
|
---|
[610] | 2349 |
|
---|
[649] | 2350 |
|
---|
[650] | 2351 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2352 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
[649] | 2353 |
|
---|
[650] | 2354 | volume += backVc->GetVolume();
|
---|
| 2355 | volume += frontVc->GetVolume();
|
---|
[649] | 2356 |
|
---|
[650] | 2357 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 2358 |
|
---|
[650] | 2359 | return viewCellInterior;
|
---|
[610] | 2360 | }
|
---|
| 2361 |
|
---|
[650] | 2362 |
|
---|
[590] | 2363 | /************************************************************************/
|
---|
| 2364 | /* KdViewCellsManager implementation */
|
---|
| 2365 | /************************************************************************/
|
---|
| 2366 |
|
---|
| 2367 |
|
---|
| 2368 |
|
---|
[440] | 2369 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
[469] | 2370 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 2371 | {
|
---|
| 2372 | }
|
---|
| 2373 |
|
---|
[605] | 2374 |
|
---|
[471] | 2375 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 2376 | {
|
---|
[479] | 2377 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 2378 | if (0)
|
---|
| 2379 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 2380 | else
|
---|
| 2381 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 2382 | }
|
---|
| 2383 |
|
---|
| 2384 |
|
---|
| 2385 |
|
---|
[479] | 2386 |
|
---|
[480] | 2387 | void KdViewCellsManager::CollectViewCells()
|
---|
| 2388 | {
|
---|
| 2389 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 2390 | }
|
---|
[479] | 2391 |
|
---|
[519] | 2392 |
|
---|
[574] | 2393 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 2394 | const VssRayContainer &rays)
|
---|
[440] | 2395 | {
|
---|
[441] | 2396 | // if view cells already constructed
|
---|
[440] | 2397 | if (ViewCellsConstructed())
|
---|
| 2398 | return 0;
|
---|
[441] | 2399 |
|
---|
[440] | 2400 | mKdTree->Construct();
|
---|
| 2401 |
|
---|
[480] | 2402 | mTotalAreaValid = false;
|
---|
[469] | 2403 | // create the view cells
|
---|
| 2404 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 2405 |
|
---|
[480] | 2406 | // cast rays
|
---|
[574] | 2407 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 2408 |
|
---|
[479] | 2409 | EvaluateViewCellsStats();
|
---|
[660] | 2410 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 2411 |
|
---|
[440] | 2412 | return 0;
|
---|
| 2413 | }
|
---|
| 2414 |
|
---|
[587] | 2415 |
|
---|
[440] | 2416 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 2417 | {
|
---|
| 2418 | return mKdTree->GetRoot() != NULL;
|
---|
| 2419 | }
|
---|
| 2420 |
|
---|
[503] | 2421 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 2422 | const VssRayContainer &rays)
|
---|
[440] | 2423 | {
|
---|
| 2424 | return 0;
|
---|
| 2425 | }
|
---|
| 2426 |
|
---|
| 2427 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2428 | const VssRayContainer &sampleRays)
|
---|
[440] | 2429 | {
|
---|
[441] | 2430 | if (!ViewCellsConstructed())
|
---|
| 2431 | return;
|
---|
| 2432 |
|
---|
[469] | 2433 | // using view cells instead of the kd PVS of objects
|
---|
| 2434 | const bool useViewCells = true;
|
---|
| 2435 | bool exportRays = false;
|
---|
[440] | 2436 |
|
---|
| 2437 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 2438 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 2439 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 2440 |
|
---|
[469] | 2441 | if (useViewCells)
|
---|
[440] | 2442 | {
|
---|
[469] | 2443 | const int leafOut = 10;
|
---|
[503] | 2444 |
|
---|
[469] | 2445 | ViewCell::NewMail();
|
---|
[503] | 2446 |
|
---|
[469] | 2447 | //-- some rays for output
|
---|
| 2448 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 2449 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 2450 |
|
---|
| 2451 | //-- some random view cells and rays for output
|
---|
| 2452 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 2453 |
|
---|
[469] | 2454 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 2455 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 2456 |
|
---|
[469] | 2457 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 2458 | {
|
---|
[469] | 2459 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 2460 | RayContainer vcRays;
|
---|
[503] | 2461 |
|
---|
[469] | 2462 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 2463 | #if 0
|
---|
[469] | 2464 | // check whether we can add the current ray to the output rays
|
---|
[503] | 2465 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 2466 | {
|
---|
[469] | 2467 | Ray *ray = sampleRays[k];
|
---|
[503] | 2468 |
|
---|
[469] | 2469 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 2470 | {
|
---|
| 2471 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 2472 |
|
---|
| 2473 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 2474 | {
|
---|
| 2475 | vcRays.push_back(ray);
|
---|
| 2476 | }
|
---|
| 2477 | }
|
---|
[479] | 2478 | }
|
---|
[503] | 2479 | #endif
|
---|
[469] | 2480 | Intersectable::NewMail();
|
---|
[503] | 2481 |
|
---|
[469] | 2482 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 2483 |
|
---|
[469] | 2484 | //bspLeaves[j]->Mail();
|
---|
| 2485 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 2486 |
|
---|
[469] | 2487 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 2488 | exporter->SetFilled();
|
---|
| 2489 |
|
---|
| 2490 | exporter->SetWireframe();
|
---|
| 2491 | //exporter->SetFilled();
|
---|
[503] | 2492 |
|
---|
[469] | 2493 | Material m;//= RandomMaterial();
|
---|
| 2494 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 2495 | exporter->SetForcedMaterial(m);
|
---|
[503] | 2496 |
|
---|
[469] | 2497 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 2498 | exporter->ExportBox(box);
|
---|
| 2499 |
|
---|
| 2500 | // export rays piercing this view cell
|
---|
[503] | 2501 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 2502 |
|
---|
[469] | 2503 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2504 | exporter->SetForcedMaterial(m);
|
---|
[503] | 2505 |
|
---|
[469] | 2506 | // exporter->SetWireframe();
|
---|
| 2507 | exporter->SetFilled();
|
---|
[503] | 2508 |
|
---|
[469] | 2509 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
| 2510 | // output PVS of view cell
|
---|
[503] | 2511 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 2512 | {
|
---|
| 2513 | Intersectable *intersect = (*it).first;
|
---|
| 2514 | if (!intersect->Mailed())
|
---|
| 2515 | {
|
---|
| 2516 | exporter->ExportIntersectable(intersect);
|
---|
| 2517 | intersect->Mail();
|
---|
[503] | 2518 | }
|
---|
[440] | 2519 | }
|
---|
[503] | 2520 |
|
---|
[469] | 2521 | DEL_PTR(exporter);
|
---|
| 2522 | cout << "finished" << endl;
|
---|
[440] | 2523 | }
|
---|
[469] | 2524 |
|
---|
| 2525 | DEL_PTR(rays);
|
---|
[440] | 2526 | }
|
---|
[469] | 2527 | else // using kd PVS of objects
|
---|
| 2528 | {
|
---|
| 2529 | for (int i = 0; i < limit; ++ i)
|
---|
| 2530 | {
|
---|
| 2531 | VssRay *ray = sampleRays[i];
|
---|
[503] | 2532 |
|
---|
[469] | 2533 | // check whether we can add this to the rays
|
---|
[503] | 2534 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 2535 | {
|
---|
| 2536 | if (objects[j] == ray->mTerminationObject)
|
---|
| 2537 | {
|
---|
| 2538 | rays[j].push_back(ray);
|
---|
| 2539 | }
|
---|
| 2540 | }
|
---|
| 2541 | }
|
---|
[440] | 2542 |
|
---|
[503] | 2543 | if (exportRays)
|
---|
[469] | 2544 | {
|
---|
| 2545 | Exporter *exporter = NULL;
|
---|
| 2546 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 2547 | exporter->SetWireframe();
|
---|
| 2548 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 2549 |
|
---|
| 2550 | for (i=0; i < pvsOut; i++)
|
---|
[469] | 2551 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 2552 |
|
---|
| 2553 | exporter->SetFilled();
|
---|
[503] | 2554 |
|
---|
[469] | 2555 | delete exporter;
|
---|
| 2556 | }
|
---|
[440] | 2557 |
|
---|
[503] | 2558 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 2559 | {
|
---|
| 2560 | Intersectable *object = objects[k];
|
---|
[503] | 2561 | char s[64];
|
---|
[469] | 2562 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 2563 |
|
---|
[469] | 2564 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 2565 | exporter->SetWireframe();
|
---|
[503] | 2566 |
|
---|
[469] | 2567 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 2568 | Intersectable::NewMail();
|
---|
[503] | 2569 |
|
---|
[469] | 2570 | // avoid adding the object to the list
|
---|
| 2571 | object->Mail();
|
---|
| 2572 | ObjectContainer visibleObjects;
|
---|
[503] | 2573 |
|
---|
| 2574 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 2575 | {
|
---|
| 2576 | KdNode *node = (*i).first;
|
---|
| 2577 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 2578 |
|
---|
[469] | 2579 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 2580 | }
|
---|
[503] | 2581 |
|
---|
[469] | 2582 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 2583 | exporter->SetFilled();
|
---|
[503] | 2584 |
|
---|
[469] | 2585 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 2586 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 2587 |
|
---|
[469] | 2588 | Material m;
|
---|
| 2589 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2590 | exporter->SetForcedMaterial(m);
|
---|
| 2591 | exporter->ExportIntersectable(object);
|
---|
[503] | 2592 |
|
---|
[469] | 2593 | delete exporter;
|
---|
[440] | 2594 | }
|
---|
[503] | 2595 | }
|
---|
[440] | 2596 | }
|
---|
| 2597 |
|
---|
[469] | 2598 |
|
---|
[482] | 2599 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2600 | ViewCell *vc) const
|
---|
| 2601 | {
|
---|
| 2602 | // TODO
|
---|
| 2603 | }
|
---|
| 2604 |
|
---|
[666] | 2605 |
|
---|
[580] | 2606 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2607 | {
|
---|
| 2608 | return new KdViewCell(mesh);
|
---|
| 2609 | }
|
---|
[482] | 2610 |
|
---|
[580] | 2611 |
|
---|
| 2612 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2613 | ViewCell *vc,
|
---|
[660] | 2614 | const Plane3 *clipPlane) const
|
---|
[482] | 2615 | {
|
---|
[580] | 2616 | ViewCellContainer leaves;
|
---|
[485] | 2617 |
|
---|
[580] | 2618 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2619 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2620 |
|
---|
| 2621 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2622 | {
|
---|
| 2623 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 2624 |
|
---|
| 2625 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 2626 | }
|
---|
[482] | 2627 | }
|
---|
| 2628 |
|
---|
| 2629 |
|
---|
[440] | 2630 | int KdViewCellsManager::GetType() const
|
---|
| 2631 | {
|
---|
| 2632 | return ViewCellsManager::KD;
|
---|
| 2633 | }
|
---|
| 2634 |
|
---|
| 2635 |
|
---|
[441] | 2636 |
|
---|
[440] | 2637 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 2638 | {
|
---|
| 2639 | KdNode *node = leaf;
|
---|
| 2640 |
|
---|
| 2641 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 2642 | node = node->mParent;
|
---|
| 2643 | return node;
|
---|
| 2644 | }
|
---|
| 2645 |
|
---|
[469] | 2646 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2647 | const Vector3 &termination,
|
---|
| 2648 | ViewCellContainer &viewcells)
|
---|
[466] | 2649 | {
|
---|
[469] | 2650 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 2651 | }
|
---|
| 2652 |
|
---|
[469] | 2653 |
|
---|
[503] | 2654 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2655 | {
|
---|
[551] | 2656 | // TODO
|
---|
[503] | 2657 | }
|
---|
| 2658 |
|
---|
[580] | 2659 |
|
---|
| 2660 |
|
---|
| 2661 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2662 | vector<MergeCandidate> &candidates)
|
---|
| 2663 | {
|
---|
| 2664 | // TODO
|
---|
| 2665 | }
|
---|
| 2666 |
|
---|
| 2667 |
|
---|
[440] | 2668 | /**********************************************************************/
|
---|
| 2669 | /* VspKdViewCellsManager implementation */
|
---|
| 2670 | /**********************************************************************/
|
---|
| 2671 |
|
---|
[482] | 2672 |
|
---|
[574] | 2673 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree):
|
---|
| 2674 | ViewCellsManager(), mVspKdTree(vspKdTree)
|
---|
[440] | 2675 | {
|
---|
[574] | 2676 | environment->GetIntValue("VspKdTree.Construction.samples", mInitialSamples);
|
---|
[468] | 2677 | mVspKdTree->SetViewCellsManager(this);
|
---|
| 2678 | }
|
---|
[462] | 2679 |
|
---|
[471] | 2680 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 2681 | {
|
---|
[605] | 2682 | // compute view cell area / volume as subsititute for probability
|
---|
| 2683 | if (0)
|
---|
| 2684 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 2685 | else
|
---|
| 2686 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[440] | 2687 | }
|
---|
| 2688 |
|
---|
[462] | 2689 |
|
---|
[468] | 2690 |
|
---|
[503] | 2691 |
|
---|
[480] | 2692 | void VspKdViewCellsManager::CollectViewCells()
|
---|
| 2693 | {
|
---|
| 2694 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
| 2695 | }
|
---|
[462] | 2696 |
|
---|
[570] | 2697 |
|
---|
[574] | 2698 | int VspKdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2699 | const VssRayContainer &rays)
|
---|
[440] | 2700 | {
|
---|
[441] | 2701 | // if view cells already constructed
|
---|
[440] | 2702 | if (ViewCellsConstructed())
|
---|
| 2703 | return 0;
|
---|
[503] | 2704 |
|
---|
[469] | 2705 | VssRayContainer constructionRays;
|
---|
| 2706 | VssRayContainer savedRays;
|
---|
[440] | 2707 |
|
---|
[503] | 2708 | GetRaySets(rays,
|
---|
[574] | 2709 | mInitialSamples,
|
---|
[503] | 2710 | constructionRays,
|
---|
[485] | 2711 | &savedRays);
|
---|
[503] | 2712 |
|
---|
| 2713 | Debug << "constructing vsp kd tree using "
|
---|
[469] | 2714 | << (int)constructionRays.size() << " samples" << endl;
|
---|
[452] | 2715 |
|
---|
[542] | 2716 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[452] | 2717 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
| 2718 |
|
---|
[482] | 2719 | // export leaf building blocks
|
---|
| 2720 | ExportLeaves(objects, rays);
|
---|
[480] | 2721 |
|
---|
[469] | 2722 | // finally merge kd leaf building blocks to view cells
|
---|
[485] | 2723 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
| 2724 |
|
---|
| 2725 | // collapse siblings belonging to the same view cell
|
---|
[486] | 2726 | mVspKdTree->RefineViewCells(rays);
|
---|
[485] | 2727 |
|
---|
[542] | 2728 | // collapse siblings belonging to the same view cell
|
---|
[503] | 2729 | mVspKdTree->CollapseTree();
|
---|
| 2730 |
|
---|
[482] | 2731 | // evaluale view cell stats
|
---|
| 2732 | ResetViewCells();
|
---|
[469] | 2733 |
|
---|
[660] | 2734 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[482] | 2735 |
|
---|
[485] | 2736 | long startTime = GetTime();
|
---|
[660] | 2737 |
|
---|
[469] | 2738 | // recast rest of rays
|
---|
[574] | 2739 | ComputeSampleContributions(savedRays, true, false);
|
---|
[503] | 2740 |
|
---|
| 2741 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 2742 | << " secs" << endl;
|
---|
[469] | 2743 |
|
---|
| 2744 | return merged;
|
---|
[440] | 2745 | }
|
---|
| 2746 |
|
---|
| 2747 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
| 2748 | {
|
---|
| 2749 | return mVspKdTree->GetRoot() != NULL;
|
---|
| 2750 | }
|
---|
| 2751 |
|
---|
[441] | 2752 |
|
---|
[462] | 2753 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2754 | {
|
---|
| 2755 | return new VspKdViewCell(mesh);
|
---|
| 2756 | }
|
---|
| 2757 |
|
---|
[503] | 2758 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 2759 | const VssRayContainer &rays)
|
---|
[440] | 2760 | {
|
---|
[441] | 2761 | if (!ViewCellsConstructed())
|
---|
| 2762 | return 0;
|
---|
| 2763 |
|
---|
[482] | 2764 | // recalculate stats
|
---|
| 2765 | EvaluateViewCellsStats();
|
---|
| 2766 |
|
---|
[469] | 2767 | return 0;
|
---|
[440] | 2768 | }
|
---|
| 2769 |
|
---|
[482] | 2770 |
|
---|
| 2771 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
| 2772 | const VssRayContainer &sampleRays)
|
---|
[440] | 2773 | {
|
---|
[441] | 2774 | if (!ViewCellsConstructed())
|
---|
| 2775 | return;
|
---|
| 2776 |
|
---|
[482] | 2777 | //-- export leaf building blocks
|
---|
[503] | 2778 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
[482] | 2779 | if (!exporter)
|
---|
| 2780 | return;
|
---|
| 2781 |
|
---|
[598] | 2782 | if (mExportGeometry)
|
---|
| 2783 | exporter->ExportGeometry(objects);
|
---|
| 2784 |
|
---|
[482] | 2785 | //exporter->SetWireframe();
|
---|
| 2786 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
| 2787 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
| 2788 |
|
---|
[503] | 2789 | if (mExportRays)
|
---|
[440] | 2790 | {
|
---|
[503] | 2791 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 2792 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[440] | 2793 |
|
---|
[482] | 2794 | exporter->SetWireframe();
|
---|
[440] | 2795 |
|
---|
[482] | 2796 | //-- collect uniformly distributed rays
|
---|
| 2797 | VssRayContainer rays;
|
---|
[440] | 2798 |
|
---|
[482] | 2799 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 2800 | {
|
---|
| 2801 | if (RandomValue(0,1) < prob)
|
---|
| 2802 | rays.push_back(sampleRays[i]);
|
---|
[440] | 2803 | }
|
---|
[482] | 2804 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[440] | 2805 | }
|
---|
| 2806 |
|
---|
[482] | 2807 | delete exporter;
|
---|
| 2808 | }
|
---|
| 2809 |
|
---|
[726] | 2810 |
|
---|
[482] | 2811 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 2812 | const VssRayContainer &sampleRays)
|
---|
| 2813 | {
|
---|
| 2814 | if (!ViewCellsConstructed())
|
---|
| 2815 | return;
|
---|
[503] | 2816 |
|
---|
[482] | 2817 | //-- export single view cells
|
---|
| 2818 | for (int i = 0; i < 10; ++ i)
|
---|
[440] | 2819 | {
|
---|
[482] | 2820 | char s[64];
|
---|
| 2821 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
| 2822 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2823 | const int idx =
|
---|
[482] | 2824 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
[440] | 2825 |
|
---|
[503] | 2826 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
[482] | 2827 |
|
---|
| 2828 | //-- export geometry
|
---|
| 2829 | Material m;
|
---|
| 2830 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
[503] | 2831 |
|
---|
[482] | 2832 | exporter->SetForcedMaterial(m);
|
---|
| 2833 | exporter->SetWireframe();
|
---|
| 2834 |
|
---|
[580] | 2835 | ExportViewCellGeometry(exporter, vc);
|
---|
[482] | 2836 |
|
---|
| 2837 | //-- export stored rays
|
---|
[580] | 2838 |
|
---|
[485] | 2839 | if (mExportRays)
|
---|
[440] | 2840 | {
|
---|
[580] | 2841 | ViewCellContainer leaves;
|
---|
| 2842 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[440] | 2843 |
|
---|
[580] | 2844 | ViewCellContainer::const_iterator it,
|
---|
| 2845 | it_end = leaves.end();
|
---|
| 2846 |
|
---|
| 2847 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[482] | 2848 | {
|
---|
[580] | 2849 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(*it);
|
---|
| 2850 | VspKdLeaf *leaf = vspKdVc->mLeaf;
|
---|
[482] | 2851 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
[440] | 2852 |
|
---|
[482] | 2853 | VssRayContainer vssRays;
|
---|
[483] | 2854 |
|
---|
| 2855 | VssRayContainer castRays;
|
---|
| 2856 | VssRayContainer initRays;
|
---|
| 2857 |
|
---|
[482] | 2858 | leaf->GetRays(vssRays);
|
---|
[440] | 2859 |
|
---|
[482] | 2860 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
[483] | 2861 | const float prop = 200.0f / (float)vssRays.size();
|
---|
[440] | 2862 |
|
---|
[482] | 2863 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
[483] | 2864 | {
|
---|
[485] | 2865 | if (Random(1) < prop)
|
---|
[483] | 2866 | if ((*it)->mTerminationObject == NULL)
|
---|
| 2867 | castRays.push_back(*it);
|
---|
[503] | 2868 | else
|
---|
[483] | 2869 | initRays.push_back(*it);
|
---|
| 2870 | }
|
---|
| 2871 |
|
---|
| 2872 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
| 2873 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
[482] | 2874 | }
|
---|
| 2875 | }
|
---|
[580] | 2876 |
|
---|
[482] | 2877 | //-- output PVS of view cell
|
---|
| 2878 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2879 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2880 |
|
---|
[483] | 2881 | Intersectable::NewMail();
|
---|
| 2882 |
|
---|
[482] | 2883 | ObjectPvsMap::const_iterator it,
|
---|
| 2884 | it_end = vc->GetPvs().mEntries.end();
|
---|
| 2885 |
|
---|
| 2886 | exporter->SetFilled();
|
---|
| 2887 |
|
---|
[503] | 2888 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[482] | 2889 | {
|
---|
| 2890 | Intersectable *intersect = (*it).first;
|
---|
| 2891 |
|
---|
| 2892 | if (!intersect->Mailed())
|
---|
| 2893 | {
|
---|
| 2894 | Material m = RandomMaterial();
|
---|
| 2895 | exporter->SetForcedMaterial(m);
|
---|
| 2896 |
|
---|
| 2897 | exporter->ExportIntersectable(intersect);
|
---|
| 2898 | intersect->Mail();
|
---|
[503] | 2899 | }
|
---|
[482] | 2900 | }
|
---|
| 2901 |
|
---|
| 2902 | delete exporter;
|
---|
[440] | 2903 | }
|
---|
[462] | 2904 |
|
---|
| 2905 | //-- export final view cells
|
---|
[503] | 2906 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
| 2907 |
|
---|
[483] | 2908 |
|
---|
[508] | 2909 | ExportViewCellsForViz(exporter);
|
---|
[462] | 2910 |
|
---|
[503] | 2911 | if (mExportGeometry)
|
---|
[465] | 2912 | {
|
---|
| 2913 | exporter->SetFilled();
|
---|
[462] | 2914 | exporter->ExportGeometry(objects);
|
---|
[465] | 2915 | }
|
---|
[469] | 2916 |
|
---|
[503] | 2917 | if (mExportRays)
|
---|
[462] | 2918 | {
|
---|
[503] | 2919 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 2920 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[503] | 2921 |
|
---|
[462] | 2922 | exporter->SetWireframe();
|
---|
[503] | 2923 |
|
---|
[466] | 2924 | VssRayContainer rays;
|
---|
[503] | 2925 |
|
---|
[462] | 2926 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 2927 | {
|
---|
[466] | 2928 | if (RandomValue(0,1) < prob)
|
---|
| 2929 | rays.push_back(sampleRays[i]);
|
---|
[462] | 2930 | }
|
---|
[503] | 2931 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[462] | 2932 | }
|
---|
| 2933 |
|
---|
| 2934 | delete exporter;
|
---|
[440] | 2935 | }
|
---|
| 2936 |
|
---|
| 2937 | int VspKdViewCellsManager::GetType() const
|
---|
| 2938 | {
|
---|
| 2939 | return VSP_KD;
|
---|
| 2940 | }
|
---|
[442] | 2941 |
|
---|
[462] | 2942 |
|
---|
[469] | 2943 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2944 | const Vector3 &termination,
|
---|
| 2945 | ViewCellContainer &viewcells)
|
---|
[466] | 2946 | {
|
---|
[469] | 2947 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 2948 | }
|
---|
| 2949 |
|
---|
[477] | 2950 |
|
---|
[482] | 2951 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2952 | ViewCell *vc) const
|
---|
| 2953 | {
|
---|
| 2954 | if (mColorCode == 0) // Random color
|
---|
| 2955 | return;
|
---|
[503] | 2956 |
|
---|
[482] | 2957 | float importance = 0;
|
---|
[477] | 2958 |
|
---|
[482] | 2959 | switch (mColorCode)
|
---|
| 2960 | {
|
---|
| 2961 | case 1: // pvs
|
---|
| 2962 | {
|
---|
[503] | 2963 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[660] | 2964 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[482] | 2965 | }
|
---|
| 2966 | break;
|
---|
[580] | 2967 | case 2: // merged leaves
|
---|
[482] | 2968 | {
|
---|
[580] | 2969 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
| 2970 | importance = (float)lSize /
|
---|
[660] | 2971 | (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 2972 | }
|
---|
| 2973 | break;
|
---|
[485] | 2974 | case 3: // merged tree depth difference
|
---|
[482] | 2975 | {
|
---|
[503] | 2976 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 2977 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2978 | }
|
---|
| 2979 | break;
|
---|
| 2980 | default:
|
---|
| 2981 | break;
|
---|
| 2982 | }
|
---|
| 2983 |
|
---|
| 2984 | Material m;
|
---|
| 2985 | m.mDiffuseColor.b = 1.0f;
|
---|
| 2986 | m.mDiffuseColor.r = importance;
|
---|
| 2987 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2988 | //Debug << "importance: " << importance << endl;
|
---|
| 2989 | exporter->SetForcedMaterial(m);
|
---|
| 2990 | }
|
---|
| 2991 |
|
---|
| 2992 |
|
---|
[580] | 2993 | void VspKdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2994 | ViewCell *vc,
|
---|
[660] | 2995 | const Plane3 *clipPlane) const
|
---|
[482] | 2996 | {
|
---|
| 2997 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
| 2998 |
|
---|
[486] | 2999 | Mesh m;
|
---|
[580] | 3000 |
|
---|
| 3001 | ViewCellContainer leaves;
|
---|
| 3002 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3003 |
|
---|
| 3004 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3005 |
|
---|
| 3006 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[486] | 3007 | {
|
---|
[580] | 3008 | VspKdLeaf *l = dynamic_cast<VspKdViewCell *>(*it)->mLeaf;
|
---|
| 3009 | mVspKdTree->GetBBox(l).AddBoxToMesh(&m);
|
---|
[486] | 3010 | }
|
---|
| 3011 |
|
---|
| 3012 | exporter->ExportMesh(&m);
|
---|
[482] | 3013 | }
|
---|
| 3014 |
|
---|
| 3015 |
|
---|
[503] | 3016 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3017 | {
|
---|
[551] | 3018 | //TODO
|
---|
[503] | 3019 | }
|
---|
[442] | 3020 |
|
---|
[574] | 3021 |
|
---|
[584] | 3022 | void VspKdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3023 | vector<MergeCandidate> &candidates)
|
---|
[580] | 3024 | {
|
---|
| 3025 | // TODO
|
---|
| 3026 | }
|
---|
[574] | 3027 |
|
---|
[580] | 3028 |
|
---|
[503] | 3029 | /**************************************************************************/
|
---|
| 3030 | /* VspBspViewCellsManager implementation */
|
---|
| 3031 | /**************************************************************************/
|
---|
[482] | 3032 |
|
---|
[503] | 3033 |
|
---|
[574] | 3034 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 3035 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 3036 | {
|
---|
[574] | 3037 | environment->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3038 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3039 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3040 | }
|
---|
| 3041 |
|
---|
[477] | 3042 |
|
---|
[475] | 3043 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3044 | {
|
---|
| 3045 | }
|
---|
| 3046 |
|
---|
[477] | 3047 |
|
---|
[471] | 3048 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3049 | {
|
---|
[551] | 3050 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3051 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3052 | else
|
---|
| 3053 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3054 | }
|
---|
| 3055 |
|
---|
[477] | 3056 |
|
---|
[480] | 3057 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3058 | {
|
---|
[581] | 3059 | // view cells tree constructed
|
---|
| 3060 | if (!ViewCellsTreeConstructed())
|
---|
| 3061 | {
|
---|
[590] | 3062 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3063 | }
|
---|
| 3064 | else
|
---|
[664] | 3065 | { // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3066 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3067 | }
|
---|
[480] | 3068 | }
|
---|
| 3069 |
|
---|
| 3070 |
|
---|
[442] | 3071 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3072 | {
|
---|
| 3073 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3074 | }
|
---|
| 3075 |
|
---|
[462] | 3076 |
|
---|
[442] | 3077 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3078 | {
|
---|
| 3079 | return new BspViewCell(mesh);
|
---|
| 3080 | }
|
---|
| 3081 |
|
---|
[569] | 3082 |
|
---|
[574] | 3083 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3084 | const VssRayContainer &rays)
|
---|
[442] | 3085 | {
|
---|
[710] | 3086 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3087 |
|
---|
[503] | 3088 | // if view cells were already constructed
|
---|
| 3089 | if (ViewCellsConstructed())
|
---|
| 3090 | return 0;
|
---|
[442] | 3091 |
|
---|
[503] | 3092 | int sampleContributions = 0;
|
---|
| 3093 |
|
---|
| 3094 | VssRayContainer sampleRays;
|
---|
| 3095 |
|
---|
[574] | 3096 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3097 |
|
---|
[469] | 3098 | VssRayContainer constructionRays;
|
---|
| 3099 | VssRayContainer savedRays;
|
---|
[442] | 3100 |
|
---|
[660] | 3101 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3102 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3103 |
|
---|
[574] | 3104 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3105 |
|
---|
[574] | 3106 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3107 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3108 |
|
---|
[564] | 3109 |
|
---|
[666] | 3110 | //TODO: remove
|
---|
[667] | 3111 | if (1)
|
---|
| 3112 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[666] | 3113 | else
|
---|
[667] | 3114 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
| 3115 |
|
---|
[490] | 3116 | // collapse invalid regions
|
---|
[491] | 3117 | cout << "collapsing invalid tree regions ... ";
|
---|
[495] | 3118 | long startTime = GetTime();
|
---|
[503] | 3119 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3120 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3121 | << " seconds" << endl;
|
---|
| 3122 |
|
---|
[495] | 3123 | cout << "finished" << endl;
|
---|
[503] | 3124 |
|
---|
[660] | 3125 | // -- stats
|
---|
| 3126 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3127 |
|
---|
[480] | 3128 | ResetViewCells();
|
---|
[660] | 3129 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3130 |
|
---|
[491] | 3131 |
|
---|
[495] | 3132 | startTime = GetTime();
|
---|
[503] | 3133 |
|
---|
[491] | 3134 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3135 |
|
---|
[469] | 3136 | // recast rest of rays
|
---|
[605] | 3137 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3138 | ComputeSampleContributions(savedRays, true, false);
|
---|
[491] | 3139 | cout << "finished" << endl;
|
---|
| 3140 |
|
---|
[503] | 3141 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3142 | << " secs" << endl;
|
---|
[442] | 3143 |
|
---|
[485] | 3144 | cout << "construction finished" << endl;
|
---|
[503] | 3145 |
|
---|
[719] | 3146 | // real meshes are contructed at this stage
|
---|
| 3147 | if (0)
|
---|
| 3148 | {
|
---|
| 3149 | cout << "finalizing view cells ... ";
|
---|
| 3150 | FinalizeViewCells(true);
|
---|
| 3151 | cout << "finished" << endl;
|
---|
| 3152 | }
|
---|
| 3153 |
|
---|
[442] | 3154 | return sampleContributions;
|
---|
| 3155 | }
|
---|
| 3156 |
|
---|
[489] | 3157 |
|
---|
[503] | 3158 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3159 | const ObjectContainer &objects)
|
---|
[475] | 3160 | {
|
---|
[442] | 3161 | int vcSize = 0;
|
---|
| 3162 | int pvsSize = 0;
|
---|
| 3163 |
|
---|
[650] | 3164 | //-- merge view cells
|
---|
| 3165 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3166 | long startTime = GetTime();
|
---|
| 3167 |
|
---|
| 3168 |
|
---|
[597] | 3169 | if (mMergeViewCells)
|
---|
| 3170 | {
|
---|
| 3171 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3172 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3173 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3174 | }
|
---|
| 3175 | else
|
---|
| 3176 | {
|
---|
[710] | 3177 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3178 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3179 | mViewCellsTree->SetRoot(root);
|
---|
[650] | 3180 | }
|
---|
[442] | 3181 |
|
---|
[666] | 3182 | if (1)
|
---|
| 3183 | {
|
---|
| 3184 | char mstats[100];
|
---|
| 3185 | environment->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
| 3186 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3187 | }
|
---|
[485] | 3188 |
|
---|
[650] | 3189 | //-- stats and visualizations
|
---|
| 3190 | cout << "finished merging" << endl;
|
---|
| 3191 | cout << "merged view cells in "
|
---|
| 3192 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3193 |
|
---|
[650] | 3194 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3195 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3196 |
|
---|
| 3197 |
|
---|
[600] | 3198 | int savedColorCode = mColorCode;
|
---|
| 3199 |
|
---|
[660] | 3200 | // get currently active view cell set
|
---|
| 3201 | ResetViewCells();
|
---|
| 3202 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3203 |
|
---|
[485] | 3204 | //BspLeaf::NewMail();
|
---|
[667] | 3205 | if (1) // export merged view cells
|
---|
[483] | 3206 | {
|
---|
[600] | 3207 | mColorCode = 0;
|
---|
[485] | 3208 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
[660] | 3209 |
|
---|
[485] | 3210 | cout << "exporting view cells after merge ... ";
|
---|
| 3211 |
|
---|
| 3212 | if (exporter)
|
---|
[483] | 3213 | {
|
---|
[600] | 3214 | if (0)
|
---|
| 3215 | exporter->SetWireframe();
|
---|
| 3216 | else
|
---|
| 3217 | exporter->SetFilled();
|
---|
| 3218 |
|
---|
| 3219 | ExportViewCellsForViz(exporter);
|
---|
| 3220 |
|
---|
[485] | 3221 | if (mExportGeometry)
|
---|
[483] | 3222 | {
|
---|
[485] | 3223 | Material m;
|
---|
| 3224 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3225 | exporter->SetForcedMaterial(m);
|
---|
| 3226 | exporter->SetFilled();
|
---|
[442] | 3227 |
|
---|
[485] | 3228 | exporter->ExportGeometry(objects);
|
---|
[442] | 3229 | }
|
---|
[485] | 3230 |
|
---|
[600] | 3231 | delete exporter;
|
---|
| 3232 | }
|
---|
| 3233 | cout << "finished" << endl;
|
---|
| 3234 | }
|
---|
| 3235 |
|
---|
[667] | 3236 | if (1) // export merged view cells using pvs coding
|
---|
[600] | 3237 | {
|
---|
| 3238 | mColorCode = 1;
|
---|
| 3239 |
|
---|
| 3240 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.x3d");
|
---|
| 3241 |
|
---|
| 3242 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3243 |
|
---|
| 3244 | if (exporter)
|
---|
| 3245 | {
|
---|
[598] | 3246 | if (0)
|
---|
| 3247 | exporter->SetWireframe();
|
---|
| 3248 | else
|
---|
| 3249 | exporter->SetFilled();
|
---|
| 3250 |
|
---|
| 3251 | ExportViewCellsForViz(exporter);
|
---|
| 3252 |
|
---|
[600] | 3253 | if (mExportGeometry)
|
---|
| 3254 | {
|
---|
| 3255 | Material m;
|
---|
| 3256 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3257 | exporter->SetForcedMaterial(m);
|
---|
| 3258 | exporter->SetFilled();
|
---|
| 3259 |
|
---|
| 3260 | exporter->ExportGeometry(objects);
|
---|
| 3261 | }
|
---|
| 3262 |
|
---|
[485] | 3263 | delete exporter;
|
---|
[442] | 3264 | }
|
---|
[485] | 3265 | cout << "finished" << endl;
|
---|
[442] | 3266 | }
|
---|
[600] | 3267 |
|
---|
| 3268 | mColorCode = savedColorCode;
|
---|
| 3269 |
|
---|
[503] | 3270 | }
|
---|
[475] | 3271 |
|
---|
[503] | 3272 |
|
---|
[609] | 3273 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3274 | {
|
---|
[609] | 3275 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3276 | }
|
---|
| 3277 |
|
---|
| 3278 |
|
---|
[609] | 3279 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3280 | {
|
---|
| 3281 | if (!viewCell->IsLeaf())
|
---|
| 3282 | {
|
---|
| 3283 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3284 |
|
---|
[609] | 3285 | return bspVc->mLeaf;
|
---|
| 3286 | }
|
---|
[607] | 3287 | else
|
---|
| 3288 | {
|
---|
| 3289 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3290 |
|
---|
| 3291 | // cannot be node of binary tree
|
---|
| 3292 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3293 | return NULL;
|
---|
[607] | 3294 |
|
---|
| 3295 | ViewCell *left = interior->mChildren[0];
|
---|
| 3296 | ViewCell *right = interior->mChildren[1];
|
---|
| 3297 |
|
---|
[609] | 3298 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3299 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3300 |
|
---|
[609] | 3301 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3302 | {
|
---|
[609] | 3303 | return leftNode->GetParent();
|
---|
[607] | 3304 | }
|
---|
[609] | 3305 | }
|
---|
[607] | 3306 |
|
---|
[609] | 3307 | return NULL;
|
---|
[607] | 3308 | }
|
---|
| 3309 |
|
---|
| 3310 |
|
---|
[564] | 3311 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3312 | const ObjectContainer &objects)
|
---|
[503] | 3313 | {
|
---|
[485] | 3314 | Debug << "render time before refine:" << endl;
|
---|
| 3315 | mRenderer->RenderScene();
|
---|
[503] | 3316 | SimulationStatistics ss;
|
---|
[485] | 3317 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3318 | Debug << ss << endl;
|
---|
| 3319 |
|
---|
[489] | 3320 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3321 | long startTime = GetTime();
|
---|
[485] | 3322 |
|
---|
| 3323 | // refining the merged view cells
|
---|
[580] | 3324 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3325 |
|
---|
[442] | 3326 | //-- stats and visualizations
|
---|
| 3327 | cout << "finished" << endl;
|
---|
[485] | 3328 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3329 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3330 |
|
---|
[485] | 3331 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3332 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3333 | }
|
---|
[495] | 3334 |
|
---|
[517] | 3335 |
|
---|
[503] | 3336 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3337 | const VssRayContainer &rays)
|
---|
| 3338 | {
|
---|
| 3339 | if (!ViewCellsConstructed())
|
---|
| 3340 | {
|
---|
[517] | 3341 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3342 | return 0;
|
---|
| 3343 | }
|
---|
[520] | 3344 |
|
---|
[564] | 3345 |
|
---|
[609] | 3346 | // view cells already finished before post processing step
|
---|
| 3347 | // (i.e. because they were loaded)
|
---|
[520] | 3348 | if (mViewCellsFinished)
|
---|
[542] | 3349 | {
|
---|
[551] | 3350 | FinalizeViewCells(true);
|
---|
[542] | 3351 | EvaluateViewCellsStats();
|
---|
[577] | 3352 |
|
---|
[517] | 3353 | return 0;
|
---|
[542] | 3354 | }
|
---|
[448] | 3355 |
|
---|
[710] | 3356 | // check if new view cells turned invalid
|
---|
| 3357 | int minPvs, maxPvs;
|
---|
[564] | 3358 |
|
---|
[710] | 3359 | if (0)
|
---|
| 3360 | {
|
---|
| 3361 | minPvs = mMinPvsSize;
|
---|
| 3362 | maxPvs = mMaxPvsSize;
|
---|
| 3363 | }
|
---|
| 3364 | else
|
---|
| 3365 | {
|
---|
| 3366 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3367 | maxPvs = mMaxPvsSize;
|
---|
| 3368 | }
|
---|
[720] | 3369 |
|
---|
[710] | 3370 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3371 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3372 |
|
---|
| 3373 | SetValidity(minPvs, maxPvs);
|
---|
| 3374 |
|
---|
[574] | 3375 | // update valid view space according to valid view cells
|
---|
[720] | 3376 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3377 |
|
---|
[720] | 3378 | // area has to be recomputed
|
---|
[574] | 3379 | mTotalAreaValid = false;
|
---|
[517] | 3380 | VssRayContainer postProcessRays;
|
---|
[605] | 3381 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3382 |
|
---|
[517] | 3383 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3384 |
|
---|
[517] | 3385 |
|
---|
[552] | 3386 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3387 | // and to correct the rendering statistics
|
---|
[719] | 3388 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3389 |
|
---|
[597] | 3390 | //-- merge the individual view cells
|
---|
| 3391 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3392 |
|
---|
[720] | 3393 |
|
---|
| 3394 | // only for debugging purpose: test if the subdivision is valid
|
---|
[693] | 3395 | TestSubdivision();
|
---|
| 3396 |
|
---|
[597] | 3397 | //-- refines the merged view cells
|
---|
[720] | 3398 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3399 |
|
---|
[719] | 3400 |
|
---|
[660] | 3401 | //-- render simulation after merge + refine
|
---|
[605] | 3402 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3403 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3404 | SimulationStatistics ss;
|
---|
| 3405 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3406 |
|
---|
[580] | 3407 |
|
---|
[605] | 3408 | cout << " finished" << endl;
|
---|
| 3409 | cout << ss << endl;
|
---|
| 3410 | Debug << ss << endl;
|
---|
[600] | 3411 |
|
---|
| 3412 |
|
---|
| 3413 | //-- compression
|
---|
| 3414 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3415 | {
|
---|
| 3416 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3417 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3418 |
|
---|
| 3419 | mViewCellsTree->CompressViewCellsPvs();
|
---|
| 3420 |
|
---|
| 3421 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3422 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3423 | }
|
---|
| 3424 |
|
---|
[660] | 3425 |
|
---|
[517] | 3426 | // collapse sibling leaves that share the same view cell
|
---|
[586] | 3427 | if (0)
|
---|
| 3428 | mVspBspTree->CollapseTree();
|
---|
| 3429 |
|
---|
[574] | 3430 | // recompute view cell list and statistics
|
---|
[520] | 3431 | ResetViewCells();
|
---|
| 3432 |
|
---|
[719] | 3433 | // compute final meshes and volume / area
|
---|
| 3434 | if (1) FinalizeViewCells(true);
|
---|
[517] | 3435 |
|
---|
[719] | 3436 |
|
---|
[508] | 3437 | // write view cells to disc
|
---|
| 3438 | if (mExportViewCells)
|
---|
| 3439 | {
|
---|
[517] | 3440 | char buff[100];
|
---|
| 3441 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
| 3442 | string vcFilename(buff);
|
---|
| 3443 |
|
---|
| 3444 | ExportViewCells(buff);
|
---|
[508] | 3445 | }
|
---|
[503] | 3446 |
|
---|
| 3447 | return 0;
|
---|
[442] | 3448 | }
|
---|
| 3449 |
|
---|
[490] | 3450 |
|
---|
[442] | 3451 | int VspBspViewCellsManager::GetType() const
|
---|
| 3452 | {
|
---|
| 3453 | return VSP_BSP;
|
---|
| 3454 | }
|
---|
| 3455 |
|
---|
| 3456 |
|
---|
[650] | 3457 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 3458 | {
|
---|
[650] | 3459 | if (root->IsLeaf())
|
---|
| 3460 | {
|
---|
| 3461 | ViewCell *viewCell = dynamic_cast<BspLeaf *>(root)->GetViewCell();
|
---|
[610] | 3462 |
|
---|
[650] | 3463 | viewCell->SetMergeCost(0.0f);
|
---|
[649] | 3464 |
|
---|
[650] | 3465 | return viewCell;
|
---|
| 3466 | }
|
---|
| 3467 |
|
---|
| 3468 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3469 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3470 |
|
---|
| 3471 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3472 | //Debug << "timestamp: " << root->mTimeStamp;
|
---|
| 3473 | //Debug << "merge cost: " << mergeCost << endl;
|
---|
[610] | 3474 |
|
---|
[650] | 3475 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 3476 |
|
---|
[650] | 3477 | float volume = 0;
|
---|
| 3478 |
|
---|
| 3479 | BspNode *front = interior->GetFront();
|
---|
| 3480 | BspNode *back = interior->GetBack();
|
---|
[649] | 3481 |
|
---|
[650] | 3482 | // recursivly compute child hierarchies
|
---|
| 3483 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3484 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3485 |
|
---|
[650] | 3486 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 3487 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 3488 |
|
---|
| 3489 |
|
---|
| 3490 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 3491 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 3492 |
|
---|
| 3493 | volume += backVc->GetVolume();
|
---|
| 3494 | volume += frontVc->GetVolume();
|
---|
| 3495 |
|
---|
| 3496 | viewCellInterior->SetVolume(volume);
|
---|
| 3497 |
|
---|
| 3498 | return viewCellInterior;
|
---|
[609] | 3499 | }
|
---|
| 3500 |
|
---|
| 3501 |
|
---|
[490] | 3502 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 3503 | {
|
---|
| 3504 | if (!ViewCellsConstructed())
|
---|
| 3505 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 3506 |
|
---|
| 3507 | // TODO: set reasonable limit
|
---|
| 3508 | const int limit = 20;
|
---|
| 3509 |
|
---|
| 3510 | for (int i = 0; i < limit; ++ i)
|
---|
| 3511 | {
|
---|
[542] | 3512 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 3513 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 3514 | {
|
---|
| 3515 | return true;
|
---|
| 3516 | }
|
---|
| 3517 | }
|
---|
| 3518 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 3519 | return false;
|
---|
| 3520 | }
|
---|
| 3521 |
|
---|
| 3522 |
|
---|
| 3523 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 3524 | {
|
---|
[569] | 3525 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 3526 | // validy update in preprocessor for all managers)
|
---|
| 3527 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 3528 |
|
---|
[569] | 3529 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 3530 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 3531 | }
|
---|
| 3532 |
|
---|
| 3533 |
|
---|
[442] | 3534 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3535 | const VssRayContainer &sampleRays)
|
---|
[442] | 3536 | {
|
---|
| 3537 | if (!ViewCellsConstructed())
|
---|
| 3538 | return;
|
---|
| 3539 |
|
---|
[485] | 3540 | VssRayContainer visRays;
|
---|
| 3541 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 3542 |
|
---|
[600] | 3543 |
|
---|
[651] | 3544 | if (1) // export view cells
|
---|
[612] | 3545 | { // hack pvs
|
---|
[600] | 3546 | int savedColorCode = mColorCode;
|
---|
[651] | 3547 | mColorCode = 0;
|
---|
[712] | 3548 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3549 |
|
---|
[442] | 3550 | if (exporter)
|
---|
| 3551 | {
|
---|
[580] | 3552 | cout << "exporting view cells after post process ... ";
|
---|
| 3553 |
|
---|
[600] | 3554 | if (0)
|
---|
[542] | 3555 | {
|
---|
| 3556 | exporter->SetWireframe();
|
---|
| 3557 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 3558 | exporter->SetFilled();
|
---|
| 3559 | }
|
---|
| 3560 |
|
---|
[485] | 3561 | if (mExportGeometry)
|
---|
[542] | 3562 | {
|
---|
[485] | 3563 | exporter->ExportGeometry(objects);
|
---|
[542] | 3564 | }
|
---|
[489] | 3565 |
|
---|
| 3566 | // export rays
|
---|
[490] | 3567 | if (mExportRays)
|
---|
[489] | 3568 | {
|
---|
[490] | 3569 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 3570 | }
|
---|
[564] | 3571 |
|
---|
[508] | 3572 | ExportViewCellsForViz(exporter);
|
---|
[442] | 3573 | delete exporter;
|
---|
[580] | 3574 | cout << "finished" << endl;
|
---|
[442] | 3575 | }
|
---|
[600] | 3576 |
|
---|
| 3577 | mColorCode = savedColorCode;
|
---|
[557] | 3578 | }
|
---|
[503] | 3579 |
|
---|
[600] | 3580 | if (0)
|
---|
[577] | 3581 | {
|
---|
| 3582 | cout << "exporting depth map ... ";
|
---|
| 3583 |
|
---|
| 3584 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 3585 | if (exporter)
|
---|
| 3586 | {
|
---|
| 3587 | if (1)
|
---|
| 3588 | {
|
---|
| 3589 | exporter->SetWireframe();
|
---|
| 3590 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 3591 | exporter->SetFilled();
|
---|
| 3592 | }
|
---|
| 3593 |
|
---|
| 3594 | if (mExportGeometry)
|
---|
| 3595 | {
|
---|
| 3596 | exporter->ExportGeometry(objects);
|
---|
| 3597 | }
|
---|
| 3598 |
|
---|
| 3599 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
| 3600 |
|
---|
| 3601 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 3602 |
|
---|
| 3603 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 3604 | {
|
---|
[582] | 3605 | ViewCell *vc = *vit;
|
---|
[577] | 3606 |
|
---|
[580] | 3607 | ViewCellContainer leaves;
|
---|
| 3608 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 3609 |
|
---|
[580] | 3610 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 3611 |
|
---|
| 3612 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 3613 | {
|
---|
[580] | 3614 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 3615 |
|
---|
| 3616 | Material m;
|
---|
| 3617 |
|
---|
| 3618 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 3619 | m.mDiffuseColor.r = relDepth;
|
---|
| 3620 | m.mDiffuseColor.g = 0.0f;
|
---|
| 3621 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 3622 |
|
---|
| 3623 | exporter->SetForcedMaterial(m);
|
---|
| 3624 |
|
---|
| 3625 |
|
---|
| 3626 | BspNodeGeometry geom;
|
---|
| 3627 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 3628 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 3629 | }
|
---|
| 3630 | }
|
---|
| 3631 |
|
---|
| 3632 | delete exporter;
|
---|
| 3633 | }
|
---|
| 3634 |
|
---|
| 3635 |
|
---|
| 3636 | cout << "finished" << endl;
|
---|
| 3637 | }
|
---|
| 3638 |
|
---|
[442] | 3639 | //-- visualization of the BSP splits
|
---|
| 3640 | bool exportSplits = false;
|
---|
[489] | 3641 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3642 |
|
---|
[442] | 3643 | if (exportSplits)
|
---|
| 3644 | {
|
---|
| 3645 | cout << "exporting splits ... ";
|
---|
[485] | 3646 | ExportSplits(objects, visRays);
|
---|
[442] | 3647 | cout << "finished" << endl;
|
---|
| 3648 | }
|
---|
| 3649 |
|
---|
[542] | 3650 | //-- export single view cells
|
---|
[485] | 3651 | ExportBspPvs(objects, visRays);
|
---|
[442] | 3652 | }
|
---|
| 3653 |
|
---|
[503] | 3654 |
|
---|
[485] | 3655 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 3656 | const VssRayContainer &rays)
|
---|
[442] | 3657 | {
|
---|
| 3658 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3659 |
|
---|
[503] | 3660 | if (exporter)
|
---|
| 3661 | {
|
---|
| 3662 | Material m;
|
---|
[442] | 3663 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3664 | exporter->SetForcedMaterial(m);
|
---|
| 3665 | exporter->SetWireframe();
|
---|
[503] | 3666 |
|
---|
[448] | 3667 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 3668 |
|
---|
| 3669 | // take forced material, else big scenes cannot be viewed
|
---|
| 3670 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3671 | exporter->SetForcedMaterial(m);
|
---|
| 3672 | exporter->SetFilled();
|
---|
| 3673 |
|
---|
| 3674 | exporter->ResetForcedMaterial();
|
---|
[503] | 3675 |
|
---|
[442] | 3676 | // export rays
|
---|
[485] | 3677 | if (mExportRays)
|
---|
| 3678 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 3679 |
|
---|
[485] | 3680 | if (mExportGeometry)
|
---|
[442] | 3681 | exporter->ExportGeometry(objects);
|
---|
| 3682 |
|
---|
| 3683 | delete exporter;
|
---|
| 3684 | }
|
---|
| 3685 | }
|
---|
| 3686 |
|
---|
[503] | 3687 |
|
---|
[485] | 3688 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 3689 | const VssRayContainer &rays)
|
---|
[442] | 3690 | {
|
---|
[639] | 3691 | const int leafOut = 20;
|
---|
[503] | 3692 |
|
---|
[442] | 3693 | ViewCell::NewMail();
|
---|
[503] | 3694 |
|
---|
[639] | 3695 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 3696 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 3697 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 3698 |
|
---|
[694] | 3699 | const bool sortViewCells = true;
|
---|
| 3700 |
|
---|
[485] | 3701 | // sort view cells to visualize the largest view cells
|
---|
[694] | 3702 | if (sortViewCells)
|
---|
[587] | 3703 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
[639] | 3704 |
|
---|
[503] | 3705 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 3706 |
|
---|
[639] | 3707 | int raysOut = 0;
|
---|
[587] | 3708 |
|
---|
[485] | 3709 | //-- some rays for output
|
---|
[478] | 3710 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 3711 | {
|
---|
[478] | 3712 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3713 |
|
---|
[582] | 3714 | ViewCell *vc;
|
---|
[574] | 3715 |
|
---|
[694] | 3716 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 3717 | vc = mViewCells[i];
|
---|
[574] | 3718 | else
|
---|
[639] | 3719 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 3720 |
|
---|
[639] | 3721 | //bspLeaves[j]->Mail();
|
---|
| 3722 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
| 3723 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3724 |
|
---|
| 3725 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 3726 |
|
---|
[639] | 3727 | if (1 || mExportRays)
|
---|
[442] | 3728 | {
|
---|
[694] | 3729 | // output rays stored with the view cells during subdivision
|
---|
[643] | 3730 | if (0)
|
---|
[442] | 3731 | {
|
---|
[639] | 3732 | VssRayContainer vcRays;
|
---|
| 3733 | VssRayContainer collectRays;
|
---|
| 3734 |
|
---|
| 3735 | raysOut = min((int)rays.size(), 100);
|
---|
| 3736 |
|
---|
| 3737 | // collect intial view cells
|
---|
| 3738 | ViewCellContainer leaves;
|
---|
| 3739 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3740 |
|
---|
| 3741 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3742 |
|
---|
| 3743 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 3744 | {
|
---|
[639] | 3745 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 3746 |
|
---|
| 3747 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 3748 |
|
---|
[639] | 3749 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 3750 | {
|
---|
| 3751 | collectRays.push_back(*rit);
|
---|
| 3752 | }
|
---|
[574] | 3753 | }
|
---|
[639] | 3754 |
|
---|
| 3755 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3756 |
|
---|
| 3757 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 3758 | {
|
---|
| 3759 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3760 |
|
---|
| 3761 | if (p < raysOut)
|
---|
| 3762 | vcRays.push_back(*rit);
|
---|
| 3763 | }
|
---|
| 3764 | //-- export rays piercing this view cell
|
---|
| 3765 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 3766 | }
|
---|
[651] | 3767 |
|
---|
[694] | 3768 | // associate new rays with output view cell
|
---|
[643] | 3769 | if (1)
|
---|
[639] | 3770 | {
|
---|
| 3771 | VssRayContainer vcRays;
|
---|
| 3772 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 3773 | // check whether we can add the current ray to the output rays
|
---|
| 3774 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 3775 | {
|
---|
| 3776 | VssRay *ray = rays[k];
|
---|
| 3777 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 3778 | {
|
---|
| 3779 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 3780 |
|
---|
| 3781 | if (rayvc == vc)
|
---|
| 3782 | vcRays.push_back(ray);
|
---|
| 3783 | }
|
---|
| 3784 | }
|
---|
| 3785 |
|
---|
| 3786 | //-- export rays piercing this view cell
|
---|
| 3787 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 3788 | }
|
---|
| 3789 |
|
---|
[442] | 3790 | }
|
---|
[639] | 3791 |
|
---|
[574] | 3792 |
|
---|
[478] | 3793 | exporter->SetWireframe();
|
---|
[442] | 3794 |
|
---|
[478] | 3795 | Material m;//= RandomMaterial();
|
---|
| 3796 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3797 | exporter->SetForcedMaterial(m);
|
---|
[442] | 3798 |
|
---|
[580] | 3799 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 3800 |
|
---|
| 3801 | exporter->SetFilled();
|
---|
[503] | 3802 |
|
---|
[639] | 3803 |
|
---|
[574] | 3804 | if (1)
|
---|
| 3805 | {
|
---|
[639] | 3806 | ObjectPvsMap::const_iterator oit,
|
---|
| 3807 | oit_end = vc->GetPvs().mEntries.end();
|
---|
[483] | 3808 |
|
---|
[580] | 3809 |
|
---|
[639] | 3810 | exporter->SetFilled();
|
---|
[580] | 3811 |
|
---|
[639] | 3812 | Intersectable::NewMail();
|
---|
[574] | 3813 |
|
---|
[639] | 3814 | // output PVS of view cell
|
---|
| 3815 | for (oit = vc->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 3816 | {
|
---|
| 3817 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 3818 |
|
---|
[639] | 3819 | if (!intersect->Mailed())
|
---|
| 3820 | {
|
---|
[643] | 3821 | m = RandomMaterial();
|
---|
| 3822 | exporter->SetForcedMaterial(m);
|
---|
[442] | 3823 |
|
---|
[639] | 3824 | exporter->ExportIntersectable(intersect);
|
---|
| 3825 | intersect->Mail();
|
---|
| 3826 | }
|
---|
[503] | 3827 | }
|
---|
[442] | 3828 | }
|
---|
[639] | 3829 | else
|
---|
| 3830 | {
|
---|
[643] | 3831 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3832 | exporter->SetForcedMaterial(m);
|
---|
| 3833 |
|
---|
[639] | 3834 | exporter->ExportGeometry(objects);
|
---|
| 3835 | }
|
---|
[503] | 3836 |
|
---|
[478] | 3837 | DEL_PTR(exporter);
|
---|
| 3838 | cout << "finished" << endl;
|
---|
[442] | 3839 | }
|
---|
[475] | 3840 |
|
---|
| 3841 | Debug << endl;
|
---|
[442] | 3842 | }
|
---|
| 3843 |
|
---|
| 3844 |
|
---|
[697] | 3845 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const
|
---|
| 3846 | {
|
---|
| 3847 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 3848 | }
|
---|
| 3849 |
|
---|
| 3850 |
|
---|
[469] | 3851 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3852 | const Vector3 &termination,
|
---|
| 3853 | ViewCellContainer &viewcells)
|
---|
[466] | 3854 | {
|
---|
[469] | 3855 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3856 | }
|
---|
[482] | 3857 |
|
---|
| 3858 |
|
---|
[503] | 3859 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 3860 | ViewCell *vc) const
|
---|
| 3861 | {
|
---|
[564] | 3862 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[503] | 3863 |
|
---|
[482] | 3864 | float importance = 0;
|
---|
[564] | 3865 | static Material m;
|
---|
| 3866 |
|
---|
[482] | 3867 | switch (mColorCode)
|
---|
| 3868 | {
|
---|
[564] | 3869 | case 0: // Random
|
---|
| 3870 | {
|
---|
| 3871 | if (vcValid)
|
---|
| 3872 | {
|
---|
[598] | 3873 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 3874 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 3875 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
[564] | 3876 | }
|
---|
| 3877 | else
|
---|
| 3878 | {
|
---|
| 3879 | m.mDiffuseColor.r = 0.0f;
|
---|
| 3880 | m.mDiffuseColor.g = 1.0f;
|
---|
| 3881 | m.mDiffuseColor.b = 0.0f;
|
---|
| 3882 | }
|
---|
[591] | 3883 |
|
---|
| 3884 | exporter->SetForcedMaterial(m);
|
---|
| 3885 | return;
|
---|
[564] | 3886 | }
|
---|
[591] | 3887 |
|
---|
[482] | 3888 | case 1: // pvs
|
---|
| 3889 | {
|
---|
[503] | 3890 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[660] | 3891 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[570] | 3892 |
|
---|
[482] | 3893 | }
|
---|
| 3894 | break;
|
---|
| 3895 | case 2: // merges
|
---|
| 3896 | {
|
---|
[580] | 3897 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
[660] | 3898 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 3899 | }
|
---|
| 3900 | break;
|
---|
| 3901 | case 3: // merge tree differene
|
---|
| 3902 | {
|
---|
[503] | 3903 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 3904 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
[547] | 3905 |
|
---|
[482] | 3906 | }
|
---|
| 3907 | break;
|
---|
| 3908 | default:
|
---|
| 3909 | break;
|
---|
| 3910 | }
|
---|
| 3911 |
|
---|
[564] | 3912 | // special color code for invalid view cells
|
---|
[482] | 3913 | m.mDiffuseColor.r = importance;
|
---|
| 3914 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[564] | 3915 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[547] | 3916 |
|
---|
[482] | 3917 | //Debug << "importance: " << importance << endl;
|
---|
| 3918 | exporter->SetForcedMaterial(m);
|
---|
| 3919 | }
|
---|
| 3920 |
|
---|
| 3921 |
|
---|
[580] | 3922 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3923 | ViewCell *vc,
|
---|
[660] | 3924 | const Plane3 *clipPlane) const
|
---|
[482] | 3925 | {
|
---|
[542] | 3926 | if (vc->GetMesh())
|
---|
[503] | 3927 | {
|
---|
| 3928 | exporter->ExportMesh(vc->GetMesh());
|
---|
[590] | 3929 |
|
---|
[503] | 3930 | return;
|
---|
| 3931 | }
|
---|
| 3932 |
|
---|
[591] | 3933 |
|
---|
[660] | 3934 | if (clipPlane)
|
---|
[591] | 3935 | {
|
---|
| 3936 | ViewCellContainer leaves;
|
---|
| 3937 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3938 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3939 |
|
---|
| 3940 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3941 | {
|
---|
| 3942 | BspNodeGeometry geom;
|
---|
| 3943 |
|
---|
| 3944 | BspNodeGeometry front;
|
---|
| 3945 | BspNodeGeometry back;
|
---|
| 3946 |
|
---|
| 3947 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3948 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3949 |
|
---|
[710] | 3950 | const float eps = 0.00000001f;
|
---|
| 3951 | const int cf = geom.Side(*clipPlane, eps);
|
---|
[682] | 3952 |
|
---|
[710] | 3953 | if (cf == -1)
|
---|
[682] | 3954 | {
|
---|
| 3955 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3956 | }
|
---|
[710] | 3957 | else if (cf == 0)
|
---|
[684] | 3958 | {
|
---|
[682] | 3959 | geom.SplitGeometry(front,
|
---|
| 3960 | back,
|
---|
| 3961 | *clipPlane,
|
---|
| 3962 | mViewSpaceBox,
|
---|
[710] | 3963 | eps);
|
---|
[682] | 3964 |
|
---|
[694] | 3965 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 3966 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[683] | 3967 | if (back.Valid())
|
---|
| 3968 | {
|
---|
[682] | 3969 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 3970 | }
|
---|
[684] | 3971 | }
|
---|
[591] | 3972 | }
|
---|
| 3973 | }
|
---|
| 3974 | else
|
---|
| 3975 | {
|
---|
| 3976 | BspNodeGeometry geom;
|
---|
| 3977 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 3978 |
|
---|
[678] | 3979 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 3980 | }
|
---|
[482] | 3981 | }
|
---|
| 3982 |
|
---|
| 3983 |
|
---|
| 3984 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 3985 | {
|
---|
[580] | 3986 | ViewCellContainer leaves;
|
---|
| 3987 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 3988 |
|
---|
| 3989 | int maxDist = 0;
|
---|
[580] | 3990 |
|
---|
[482] | 3991 | // compute max height difference
|
---|
[580] | 3992 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
| 3993 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[482] | 3994 | {
|
---|
[580] | 3995 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 3996 |
|
---|
| 3997 | if (i != j)
|
---|
| 3998 | {
|
---|
[580] | 3999 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
[482] | 4000 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4001 | if (dist > maxDist)
|
---|
| 4002 | maxDist = dist;
|
---|
| 4003 | }
|
---|
| 4004 | }
|
---|
[580] | 4005 |
|
---|
[492] | 4006 | return maxDist;
|
---|
| 4007 | }
|
---|
[482] | 4008 |
|
---|
[492] | 4009 |
|
---|
[569] | 4010 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
[492] | 4011 | {
|
---|
[508] | 4012 | if (!mVspBspTree)
|
---|
| 4013 | return NULL;
|
---|
[572] | 4014 |
|
---|
| 4015 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4016 | return NULL;
|
---|
| 4017 |
|
---|
[508] | 4018 | return mVspBspTree->GetViewCell(point);
|
---|
[492] | 4019 | }
|
---|
[503] | 4020 |
|
---|
| 4021 |
|
---|
| 4022 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4023 | {
|
---|
[726] | 4024 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4025 | BspNodeGeometry geom;
|
---|
[590] | 4026 |
|
---|
| 4027 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4028 |
|
---|
[503] | 4029 | Mesh *mesh = new Mesh();
|
---|
| 4030 | geom.AddToMesh(*mesh);
|
---|
| 4031 | vc->SetMesh(mesh);
|
---|
[726] | 4032 | // put mesh into mesh container so we can savely delete it
|
---|
[503] | 4033 | mMeshContainer.push_back(mesh);
|
---|
| 4034 | }
|
---|
[508] | 4035 |
|
---|
| 4036 |
|
---|
[577] | 4037 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string filename,
|
---|
| 4038 | ObjectContainer *objects)
|
---|
[508] | 4039 | {
|
---|
| 4040 | ViewCellsParser parser;
|
---|
[564] | 4041 |
|
---|
[577] | 4042 | ViewCellsManager *vm = NULL;
|
---|
[564] | 4043 |
|
---|
[577] | 4044 | if (parser.ParseFile(filename, &vm, objects))
|
---|
| 4045 | {
|
---|
[590] | 4046 | //vm->PrepareLoadedViewCells();
|
---|
[577] | 4047 | vm->ResetViewCells();
|
---|
[564] | 4048 |
|
---|
[577] | 4049 | vm->mViewCellsFinished = true;
|
---|
| 4050 | vm->mMaxPvsSize = (int)objects->size();
|
---|
[517] | 4051 |
|
---|
[719] | 4052 | // create the meshes and compute volumes
|
---|
[577] | 4053 | vm->FinalizeViewCells(true);
|
---|
[564] | 4054 |
|
---|
[685] | 4055 | vm->mViewCellsTree->AssignRandomColors();
|
---|
[577] | 4056 | Debug << (int)vm->mViewCells.size() << " view cells loaded" << endl;
|
---|
| 4057 | }
|
---|
| 4058 | else
|
---|
| 4059 | {
|
---|
| 4060 | Debug << "failed loading view cells" << endl;
|
---|
| 4061 | DEL_PTR(vm);
|
---|
| 4062 | }
|
---|
| 4063 |
|
---|
| 4064 | return vm;
|
---|
[508] | 4065 | }
|
---|
| 4066 |
|
---|
| 4067 |
|
---|
| 4068 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
| 4069 | {
|
---|
| 4070 | return obj1->mId < obj2->mId;
|
---|
| 4071 | }
|
---|
| 4072 |
|
---|
| 4073 |
|
---|
| 4074 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
| 4075 | {
|
---|
[564] | 4076 | cout << "exporting view cells to xml ... ";
|
---|
[508] | 4077 | std::ofstream stream;
|
---|
| 4078 |
|
---|
[577] | 4079 | // for output we need unique ids for each view cell
|
---|
[590] | 4080 | CreateUniqueViewCellIds();
|
---|
[508] | 4081 |
|
---|
| 4082 | stream.open(filename.c_str());
|
---|
| 4083 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 4084 | stream << "<Visibility_Solution>" << endl;
|
---|
[564] | 4085 |
|
---|
[577] | 4086 | //-- the view space bounding box
|
---|
| 4087 | stream << "<ViewSpaceBox"
|
---|
| 4088 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 4089 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 4090 |
|
---|
| 4091 | //-- the type of the view cells hierarchy
|
---|
| 4092 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl;
|
---|
| 4093 |
|
---|
[508] | 4094 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 4095 | stream << "<ViewCells>" << endl;
|
---|
[610] | 4096 |
|
---|
| 4097 | #if 0
|
---|
| 4098 |
|
---|
[508] | 4099 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[610] | 4100 |
|
---|
[508] | 4101 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 4102 | ExportViewCell(*it, stream);
|
---|
[610] | 4103 | #else
|
---|
| 4104 | mViewCellsTree->Export(stream);
|
---|
| 4105 | #endif
|
---|
[564] | 4106 |
|
---|
[508] | 4107 | stream << "</ViewCells>" << endl;
|
---|
[564] | 4108 |
|
---|
[508] | 4109 | //-- load the hierarchy
|
---|
[590] | 4110 | stream << "<Hierarchy>" << endl;
|
---|
[508] | 4111 | mVspBspTree->Export(stream);
|
---|
[590] | 4112 | stream << endl << "</Hierarchy>" << endl;
|
---|
[564] | 4113 |
|
---|
[508] | 4114 | stream << "</Visibility_Solution>" << endl;
|
---|
| 4115 | stream.close();
|
---|
| 4116 |
|
---|
| 4117 | cout << "finished" << endl;
|
---|
| 4118 |
|
---|
| 4119 | return true;
|
---|
[532] | 4120 | }
|
---|
| 4121 |
|
---|
| 4122 |
|
---|
| 4123 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4124 | {
|
---|
[535] | 4125 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4126 | }
|
---|
[551] | 4127 |
|
---|
| 4128 |
|
---|
[587] | 4129 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4130 | const bool createMesh)
|
---|
[551] | 4131 | {
|
---|
| 4132 | float area = 0;
|
---|
| 4133 | float volume = 0;
|
---|
| 4134 |
|
---|
[580] | 4135 | ViewCellContainer leaves;
|
---|
[582] | 4136 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4137 |
|
---|
| 4138 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4139 |
|
---|
[693] | 4140 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4141 | {
|
---|
| 4142 | BspNodeGeometry geom;
|
---|
[580] | 4143 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4144 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4145 |
|
---|
[719] | 4146 | const float lVol = geom.GetVolume();
|
---|
| 4147 | const float lArea = geom.GetArea();
|
---|
[693] | 4148 |
|
---|
| 4149 | //(*it)->SetVolume(vol);
|
---|
| 4150 | //(*it)->SetArea(area);
|
---|
| 4151 |
|
---|
| 4152 | area += lArea;
|
---|
| 4153 | volume += lVol;
|
---|
| 4154 |
|
---|
| 4155 | CreateMesh(*it);
|
---|
[551] | 4156 | }
|
---|
| 4157 |
|
---|
| 4158 | viewCell->SetVolume(volume);
|
---|
| 4159 | viewCell->SetArea(area);
|
---|
[563] | 4160 | }
|
---|
[575] | 4161 |
|
---|
| 4162 |
|
---|
[693] | 4163 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4164 | {
|
---|
| 4165 | ViewCellContainer leaves;
|
---|
| 4166 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4167 |
|
---|
| 4168 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4169 |
|
---|
| 4170 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4171 | float subdivVol = 0;
|
---|
| 4172 | float newVol = 0;
|
---|
| 4173 |
|
---|
| 4174 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4175 | {
|
---|
| 4176 | BspNodeGeometry geom;
|
---|
| 4177 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4178 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4179 |
|
---|
| 4180 | const float lVol = geom.GetVolume();
|
---|
| 4181 |
|
---|
| 4182 | newVol += lVol;
|
---|
| 4183 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4184 |
|
---|
[704] | 4185 | float thres = 0.9f;
|
---|
[697] | 4186 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4187 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4188 | }
|
---|
| 4189 |
|
---|
| 4190 | Debug << "exact volume: " << vol << endl;
|
---|
| 4191 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4192 | Debug << "new volume: " << newVol << endl;
|
---|
| 4193 | }
|
---|
| 4194 |
|
---|
| 4195 |
|
---|
[577] | 4196 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4197 | {
|
---|
| 4198 | // TODO: do I still need this here?
|
---|
[590] | 4199 | if (0)
|
---|
[693] | 4200 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4201 | }
|
---|
[575] | 4202 |
|
---|
[577] | 4203 |
|
---|
[697] | 4204 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
| 4205 | {
|
---|
| 4206 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[580] | 4207 |
|
---|
[704] | 4208 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4209 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4210 | const Vector3 width = Vector3(mFilterWidth);
|
---|
| 4211 |
|
---|
| 4212 | PrVs testPrVs;
|
---|
| 4213 |
|
---|
[697] | 4214 | if (exporter)
|
---|
| 4215 | {
|
---|
| 4216 | ViewCellContainer viewCells;
|
---|
[704] | 4217 |
|
---|
| 4218 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
| 4219 |
|
---|
| 4220 | GetPrVS(viewPoint, testPrVs);
|
---|
| 4221 |
|
---|
[697] | 4222 | exporter->SetWireframe();
|
---|
| 4223 |
|
---|
| 4224 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
[704] | 4225 | exporter->ExportBox(tbox);
|
---|
[697] | 4226 |
|
---|
| 4227 | exporter->SetFilled();
|
---|
| 4228 |
|
---|
[705] | 4229 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
| 4230 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
| 4231 |
|
---|
| 4232 | //exporter->ResetForcedMaterial();
|
---|
| 4233 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[704] | 4234 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
| 4235 |
|
---|
| 4236 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
[697] | 4237 | exporter->ExportGeometry(objects);
|
---|
| 4238 |
|
---|
| 4239 | delete exporter;
|
---|
| 4240 | }
|
---|
| 4241 | }
|
---|
| 4242 |
|
---|
| 4243 |
|
---|
[580] | 4244 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4245 | vector<MergeCandidate> &candidates)
|
---|
| 4246 | {
|
---|
| 4247 | cout << "collecting merge candidates ... " << endl;
|
---|
| 4248 |
|
---|
| 4249 | if (mUseRaysForMerge)
|
---|
| 4250 | {
|
---|
| 4251 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 4252 | }
|
---|
| 4253 | else
|
---|
| 4254 | {
|
---|
| 4255 | vector<BspLeaf *> leaves;
|
---|
| 4256 | mVspBspTree->CollectLeaves(leaves);
|
---|
[708] | 4257 |
|
---|
[580] | 4258 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 4259 | }
|
---|
| 4260 |
|
---|
| 4261 | cout << "fininshed collecting candidates" << endl;
|
---|
| 4262 | }
|
---|
| 4263 |
|
---|
| 4264 |
|
---|
[590] | 4265 | void VspBspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
| 4266 | {
|
---|
| 4267 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 4268 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 4269 | {
|
---|
| 4270 | }
|
---|
| 4271 | }
|
---|
[580] | 4272 |
|
---|
| 4273 | //////////////////////////////////
|
---|
[575] | 4274 | ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
| 4275 | {
|
---|
| 4276 | //TODO
|
---|
| 4277 | return NULL;// new VspBspViewCellsManager();
|
---|
| 4278 | }
|
---|
[580] | 4279 |
|
---|