[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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[643] | 18 | #define SAMPLE_AFTER_SUBDIVISION 0
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[517] | 19 |
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[532] | 20 |
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[440] | 21 | ViewCellsManager::ViewCellsManager():
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[480] | 22 | mRenderer(NULL),
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[574] | 23 | mInitialSamples(0),
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[440] | 24 | mConstructionSamples(0),
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| 25 | mPostProcessSamples(0),
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[470] | 26 | mVisualizationSamples(0),
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| 27 | mTotalAreaValid(false),
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[517] | 28 | mTotalArea(0.0f),
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[547] | 29 | mViewCellsFinished(false),
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[562] | 30 | mMaxPvsSize(9999999),
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[564] | 31 | mMinPvsSize(0), // one means only empty view cells are invalid
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[561] | 32 | mMaxPvsRatio(1.0)
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[440] | 33 | {
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[542] | 34 | mViewSpaceBox.Initialize();
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[482] | 35 | ParseEnvironment();
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[580] | 36 |
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| 37 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 38 | }
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| 39 |
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[517] | 40 |
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[482] | 41 | void ViewCellsManager::ParseEnvironment()
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| 42 | {
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[503] | 43 | // visualization stuff
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[485] | 44 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 45 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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[547] | 46 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[564] | 47 | bool emptyViewCells = false;
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| 48 | environment->GetBoolValue("ViewCells.pruneEmptyViewCells", emptyViewCells);
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| 49 | environment->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 50 |
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[574] | 51 | environment->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 52 | environment->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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[595] | 53 | environment->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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| 54 |
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[574] | 55 | environment->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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| 56 |
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| 57 | environment->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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[577] | 58 | environment->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 59 |
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[593] | 60 |
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[600] | 61 | environment->GetIntValue("ViewCells.active", mNumActiveViewCells);
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[586] | 62 | environment->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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[591] | 63 | environment->GetBoolValue("ViewCells.Visualization.useCuttingPlane", mUseCuttingPlaneForViz);
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[580] | 64 |
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[591] | 65 | environment->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 66 |
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[564] | 67 | mMinPvsSize = emptyViewCells ? 1 : 0;
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| 68 |
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[482] | 69 | char buf[50];
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| 70 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[503] | 71 |
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[482] | 72 | if (strcmp(buf, "PVS") == 0)
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| 73 | mColorCode = 1;
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| 74 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 75 | mColorCode = 2;
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| 76 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 77 | mColorCode = 3;
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| 78 | else
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| 79 | mColorCode = 0;
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| 80 |
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| 81 | Debug << "colorCode: " << mColorCode << endl;
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[440] | 82 | }
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| 83 |
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[485] | 84 |
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[440] | 85 | ViewCellsManager::~ViewCellsManager()
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| 86 | {
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[480] | 87 | DEL_PTR(mRenderer);
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[580] | 88 |
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[598] | 89 | if (!ViewCellsTreeConstructed())
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| 90 | CLEAR_CONTAINER(mViewCells);
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| 91 | else
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| 92 | DEL_PTR(mViewCellsTree);
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| 93 |
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[503] | 94 | CLEAR_CONTAINER(mMeshContainer);
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[440] | 95 | }
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| 96 |
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[485] | 97 |
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[574] | 98 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 99 | const int sampleType,
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| 100 | VssRayContainer &passSamples) const
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[527] | 101 | {
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[570] | 102 | SimpleRayContainer simpleRays;
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[540] | 103 |
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[573] | 104 | preprocessor->GenerateRays(samplesPerPass,
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| 105 | sampleType,
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[570] | 106 | simpleRays);
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[564] | 107 |
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[573] | 108 | // shoot simple ray and add it to importance samples
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| 109 | preprocessor->CastRays(simpleRays, passSamples);
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[570] | 110 |
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[574] | 111 | return (int)passSamples.size();
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| 112 | }
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[570] | 113 |
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[574] | 114 |
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[607] | 115 |
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[574] | 116 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 117 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 118 | {
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| 119 | cout << "disposing samples ... ";
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[582] | 120 | long startTime = GetTime();
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| 121 | int n = (int)rays.size();
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| 122 |
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[573] | 123 | if (outRays)
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[542] | 124 | {
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[574] | 125 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 126 |
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| 127 | for (it = rays.begin(); it != it_end; ++ it)
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| 128 | {
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| 129 | outRays->push_back(*it);
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| 130 | }
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[573] | 131 | }
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| 132 | else
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| 133 | {
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[639] | 134 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 135 |
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| 136 | for (it = rays.begin(); it != it_end; ++ it)
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| 137 | {
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| 138 | //(*it)->Unref();
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| 139 | if (!(*it)->IsActive())
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| 140 | delete (*it);
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| 141 | }
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[573] | 142 | }
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[639] | 143 |
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[574] | 144 | cout << "finished" << endl;
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[582] | 145 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 146 | }
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[570] | 147 |
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| 148 |
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[573] | 149 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 150 | {
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| 151 | int numSamples = 0;
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| 152 | SimpleRayContainer simpleRays;
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| 153 |
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[574] | 154 | VssRayContainer initialSamples;
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[540] | 155 |
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[574] | 156 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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[573] | 157 | //-- construction rays => we use uniform samples for this
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[574] | 158 | CastPassSamples(mInitialSamples,
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[575] | 159 | //Preprocessor::DIRECTION_BASED_DISTRIBUTION,
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| 160 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION,
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[574] | 161 | initialSamples);
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[573] | 162 |
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[574] | 163 | cout << "finished" << endl;
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| 164 |
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[573] | 165 | // construct view cells
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[574] | 166 | const int numInitialSamples =
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| 167 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
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[540] | 168 |
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[574] | 169 | numSamples += numInitialSamples;
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[542] | 170 |
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[574] | 171 | // rays can be passed or deleted
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[639] | 172 | disposeRays(initialSamples, outRays);
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[574] | 173 |
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[570] | 174 |
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[573] | 175 | //-- guided rays are used for further sampling
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[574] | 176 | const int n = mConstructionSamples; //+initialSamples;
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[570] | 177 |
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[574] | 178 | bool dirSamples = false;
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[573] | 179 |
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| 180 | while (numSamples < n)
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| 181 | {
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[596] | 182 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
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[574] | 183 | VssRayContainer constructionSamples;
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| 184 |
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| 185 | const int samplingType =
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| 186 | dirSamples ?
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| 187 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
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| 188 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 189 |
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[600] | 190 | if (0)
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[575] | 191 | dirSamples = !dirSamples; // toggle sampling method
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[574] | 192 | numSamples += CastPassSamples(mSamplesPerPass,
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| 193 | samplingType,
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| 194 | constructionSamples);
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| 195 |
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| 196 | cout << "finished" << endl;
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| 197 |
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| 198 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
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| 199 |
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| 200 | // TODO: leak?
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[605] | 201 | if (SAMPLE_AFTER_SUBDIVISION)
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| 202 | ComputeSampleContributions(constructionSamples, true, false);
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[574] | 203 | cout << "finished" << endl;
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| 204 |
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| 205 |
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[639] | 206 | disposeRays(constructionSamples, outRays);
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[574] | 207 |
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| 208 | cout << "total samples: " << numSamples << endl;
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[542] | 209 | }
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[573] | 210 |
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[570] | 211 |
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[573] | 212 | //-- post processing
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| 213 | VssRayContainer postProcessSamples;
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[570] | 214 |
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[573] | 215 | //-- construction rays => we use uniform samples for this
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[574] | 216 | CastPassSamples(mPostProcessSamples,
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| 217 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
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| 218 | postProcessSamples);
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[573] | 219 |
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[574] | 220 | cout << "starting post processing and visualization" << endl;
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| 221 |
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| 222 | // store viewCells for postprocessing
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| 223 | const bool storeViewCells = true;
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[605] | 224 |
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| 225 | if (SAMPLE_AFTER_SUBDIVISION)
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| 226 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
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[570] | 227 | // merge the view cells
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[573] | 228 | PostProcess(preprocessor->mObjects, postProcessSamples);
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[570] | 229 |
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| 230 |
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[574] | 231 | //-- visualization
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| 232 | VssRayContainer visualizationSamples;
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| 233 |
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| 234 | //-- construction rays => we use uniform samples for this
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| 235 | CastPassSamples(mVisualizationSamples,
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| 236 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
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| 237 | visualizationSamples);
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| 238 |
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[605] | 239 | if (SAMPLE_AFTER_SUBDIVISION)
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| 240 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
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[574] | 241 |
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| 242 | //Debug << "visualizationsamples: " << mVisualizationSamples << " " << visualizationSamples.size() << endl;
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| 243 | // different visualizations
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| 244 | Visualize(preprocessor->mObjects, visualizationSamples);
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| 245 |
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[639] | 246 | disposeRays(visualizationSamples, outRays);
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[574] | 247 |
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[573] | 248 | return numSamples;
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[527] | 249 | }
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| 250 |
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[547] | 251 |
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[564] | 252 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
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| 253 | int minPvsSize,
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[562] | 254 | int maxPvsSize) const
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[547] | 255 | {
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[569] | 256 |
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| 257 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
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| 258 | (vc->GetPvs().GetSize() < minPvsSize))
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[564] | 259 | {
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[569] | 260 | return false;
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[561] | 261 | }
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[570] | 262 |
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[569] | 263 | return true;
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[547] | 264 | }
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| 265 |
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| 266 |
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[581] | 267 | bool ViewCellsManager::ViewCellsTreeConstructed() const
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| 268 | {
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| 269 | return mViewCellsTree->GetRoot();
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| 270 | }
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| 271 |
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| 272 |
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[564] | 273 | void ViewCellsManager::SetValidity(ViewCell *vc,
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| 274 | int minPvs,
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[562] | 275 | int maxPvs) const
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| 276 | {
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| 277 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
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| 278 | }
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| 279 |
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[577] | 280 |
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[569] | 281 | void
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| 282 | ViewCellsManager::SetValidity(
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[570] | 283 | int minPvsSize,
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[569] | 284 | int maxPvsSize) const
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| 285 | {
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| 286 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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[570] | 287 |
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[569] | 288 | for (it = mViewCells.begin(); it != it_end; ++ it) {
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| 289 | SetValidity(*it, minPvsSize, maxPvsSize);
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| 290 | }
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| 291 | }
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[562] | 292 |
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[569] | 293 | void
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| 294 | ViewCellsManager::SetValidityPercentage(
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| 295 | const float minValid,
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| 296 | const float maxValid
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| 297 | )
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| 298 | {
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| 299 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
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[570] | 300 |
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[569] | 301 | int start = mViewCells.size()*minValid;
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| 302 | int end = mViewCells.size()*maxValid;
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[570] | 303 |
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[569] | 304 | for (int i=0; i < mViewCells.size(); i++)
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| 305 | mViewCells[i]->SetValid(i >= start && i <= end);
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| 306 | }
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| 307 |
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| 308 | int
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| 309 | ViewCellsManager::CountValidViewcells() const
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| 310 | {
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| 311 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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| 312 | int valid = 0;
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| 313 | for (it = mViewCells.begin(); it != it_end; ++ it) {
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| 314 | if ((*it)->GetValid())
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| 315 | valid++;
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| 316 | }
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| 317 | return valid;
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| 318 | }
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| 319 |
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[577] | 320 |
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| 321 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
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[440] | 322 | {
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| 323 | X3dParser parser;
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[503] | 324 |
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[440] | 325 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
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[503] | 326 |
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[440] | 327 | bool success = parser.ParseFile(filename, *this);
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| 328 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
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| 329 |
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| 330 | return success;
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| 331 | }
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| 332 |
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[485] | 333 |
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[487] | 334 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
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| 335 | {
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[542] | 336 | viewPoint = mViewSpaceBox.GetRandomPoint();
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[487] | 337 |
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| 338 | return true;
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| 339 | }
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| 340 |
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| 341 |
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[557] | 342 | float ViewCellsManager::GetViewSpaceVolume()
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| 343 | {
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[610] | 344 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
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[557] | 345 | }
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| 346 |
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| 347 |
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[490] | 348 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
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| 349 | {
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[569] | 350 | if (!ViewCellsConstructed())
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[542] | 351 | return mViewSpaceBox.IsInside(viewPoint);
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[569] | 352 | else {
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| 353 | if (!mViewSpaceBox.IsInside(viewPoint))
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| 354 | return false;
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| 355 | ViewCell *viewcell = GetViewCell(viewPoint);
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| 356 | if (!viewcell || !viewcell->GetValid())
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| 357 | return false;
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| 358 | }
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| 359 | return true;
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[490] | 360 | }
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| 361 |
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[501] | 362 |
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[563] | 363 | float
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| 364 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
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[574] | 365 | const bool addRays,
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| 366 | const bool storeViewCells
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[563] | 367 | )
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[440] | 368 | {
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[563] | 369 | // view cells not yet constructed
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| 370 | if (!ViewCellsConstructed())
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| 371 | return 0.0f;
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[564] | 372 |
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[563] | 373 | VssRayContainer::const_iterator it, it_end = rays.end();
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[503] | 374 |
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[563] | 375 | float sum = 0.0f;
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| 376 | for (it = rays.begin(); it != it_end; ++ it) {
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[574] | 377 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
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[567] | 378 | //ComputeSampleContributions(*(*it), addRays);
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| 379 | // sum += (*it)->mPvsContribution;
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[563] | 380 | }
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| 381 | return sum;
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[440] | 382 | }
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| 383 |
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[485] | 384 |
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[479] | 385 | void ViewCellsManager::EvaluateViewCellsStats()
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| 386 | {
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| 387 | mViewCellsStats.Reset();
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| 388 |
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| 389 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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| 390 |
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| 391 | for (it = mViewCells.begin(); it != it_end; ++ it)
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[487] | 392 | {
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[605] | 393 | mViewCellsTree->UpdateViewCellsStats(*it, mViewCellsStats);
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[487] | 394 | }
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[479] | 395 | }
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| 396 |
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[485] | 397 |
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[580] | 398 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
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[579] | 399 | float &expectedRenderCost,
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[580] | 400 | float &deviation,
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| 401 | float &variance,
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| 402 | int &totalPvs,
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| 403 | float &avgRenderCost)
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[579] | 404 | {
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| 405 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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| 406 |
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[580] | 407 |
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[579] | 408 | //-- compute expected value
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| 409 |
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| 410 | totalRenderCost = 0;
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[580] | 411 | totalPvs = 0;
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[579] | 412 |
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| 413 | for (it = mViewCells.begin(); it != it_end; ++ it)
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| 414 | {
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| 415 | ViewCell *vc = *it;
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| 416 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
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[580] | 417 | totalPvs += (int)vc->GetPvs().GetSize();
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[579] | 418 | }
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| 419 |
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[580] | 420 | // normalize with view space box
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| 421 | totalRenderCost /= mViewSpaceBox.GetVolume();
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[579] | 422 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
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[580] | 423 | avgRenderCost = totalPvs / (float)mViewCells.size();
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[579] | 424 |
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| 425 |
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[580] | 426 | //-- compute standard defiation
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[579] | 427 | variance = 0;
|
---|
[580] | 428 | deviation = 0;
|
---|
[579] | 429 |
|
---|
| 430 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 431 | {
|
---|
| 432 | ViewCell *vc = *it;
|
---|
| 433 |
|
---|
| 434 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 435 | float dev;
|
---|
[579] | 436 |
|
---|
[580] | 437 | if (1)
|
---|
| 438 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
| 439 | else
|
---|
| 440 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 441 |
|
---|
[580] | 442 | deviation += dev;
|
---|
| 443 | variance += dev * dev;
|
---|
[579] | 444 | }
|
---|
[580] | 445 |
|
---|
[579] | 446 | variance /= (float)mViewCells.size();
|
---|
[580] | 447 | deviation /= (float)mViewCells.size();
|
---|
[579] | 448 | }
|
---|
| 449 |
|
---|
| 450 |
|
---|
| 451 |
|
---|
[440] | 452 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 453 | {
|
---|
| 454 | mViewCells.push_back(viewCell);
|
---|
| 455 | }
|
---|
| 456 |
|
---|
[485] | 457 |
|
---|
[478] | 458 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 459 | {
|
---|
| 460 | return viewCell->GetArea();
|
---|
| 461 | }
|
---|
| 462 |
|
---|
| 463 |
|
---|
| 464 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 465 | {
|
---|
| 466 | return viewCell->GetVolume();
|
---|
| 467 | }
|
---|
| 468 |
|
---|
[485] | 469 |
|
---|
[503] | 470 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
| 471 | ViewCellContainer &viewCells,
|
---|
[440] | 472 | const int maxViewCells) const
|
---|
| 473 | {
|
---|
| 474 | // maximal max viewcells
|
---|
[503] | 475 | int limit = maxViewCells > 0 ?
|
---|
[440] | 476 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 477 |
|
---|
| 478 | for (int i = 0; i < limit; ++ i)
|
---|
| 479 | {
|
---|
| 480 | Intersectable *object = objects[i];
|
---|
[503] | 481 |
|
---|
[440] | 482 | // extract the mesh instances
|
---|
| 483 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 484 | {
|
---|
| 485 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 486 |
|
---|
| 487 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 488 | viewCells.push_back(viewCell);
|
---|
| 489 | }
|
---|
| 490 | //TODO: transformed meshes
|
---|
| 491 | }
|
---|
| 492 | }
|
---|
| 493 |
|
---|
[485] | 494 |
|
---|
[503] | 495 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 496 | const float height) const
|
---|
| 497 | {
|
---|
| 498 | // one mesh per view cell
|
---|
| 499 | Mesh *mesh = new Mesh();
|
---|
[503] | 500 |
|
---|
[440] | 501 | //-- construct prism
|
---|
| 502 |
|
---|
[503] | 503 | // bottom
|
---|
[440] | 504 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 505 | // top
|
---|
| 506 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 507 | // sides
|
---|
| 508 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 509 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 510 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 511 |
|
---|
| 512 | //--- extrude new vertices for top of prism
|
---|
| 513 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 514 |
|
---|
[503] | 515 | Triangle3 topTri;
|
---|
[440] | 516 |
|
---|
| 517 | // add base vertices and calculate top vertices
|
---|
| 518 | for (int i = 0; i < 3; ++ i)
|
---|
| 519 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 520 |
|
---|
| 521 | // add top vertices
|
---|
[440] | 522 | for (int i = 0; i < 3; ++ i)
|
---|
| 523 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 524 |
|
---|
[440] | 525 | mesh->Preprocess();
|
---|
| 526 |
|
---|
| 527 | return GenerateViewCell(mesh);
|
---|
| 528 | }
|
---|
| 529 |
|
---|
[485] | 530 |
|
---|
[551] | 531 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 532 | {
|
---|
| 533 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 534 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 535 | {
|
---|
| 536 | Finalize(*it, createMesh);
|
---|
| 537 | }
|
---|
[555] | 538 |
|
---|
| 539 | mTotalAreaValid = false;
|
---|
[551] | 540 | }
|
---|
| 541 |
|
---|
| 542 |
|
---|
| 543 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 544 | {
|
---|
| 545 | // implemented in subclasses
|
---|
| 546 | }
|
---|
| 547 |
|
---|
| 548 |
|
---|
[582] | 549 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 550 | {
|
---|
[580] | 551 | // generate parent view cell
|
---|
| 552 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
[462] | 553 |
|
---|
[610] | 554 | vc->GetPvs() = left->GetPvs();
|
---|
[440] | 555 | // merge pvs
|
---|
[610] | 556 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 557 |
|
---|
[462] | 558 | //-- merge ray sets
|
---|
[564] | 559 | if (0)
|
---|
| 560 | {
|
---|
[582] | 561 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 562 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 563 |
|
---|
[582] | 564 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 565 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 566 | vc->mPiercingRays.begin());
|
---|
| 567 | }
|
---|
[440] | 568 |
|
---|
[580] | 569 |
|
---|
[582] | 570 | vc->SetupChildLink(left);
|
---|
| 571 | vc->SetupChildLink(right);
|
---|
[580] | 572 |
|
---|
| 573 |
|
---|
[440] | 574 | return vc;
|
---|
| 575 | }
|
---|
| 576 |
|
---|
[485] | 577 |
|
---|
[582] | 578 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 579 | {
|
---|
| 580 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
| 581 |
|
---|
| 582 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 583 |
|
---|
| 584 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 585 | {
|
---|
| 586 | // merge pvs
|
---|
[610] | 587 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[582] | 588 |
|
---|
| 589 | vc->SetupChildLink(*it);
|
---|
| 590 | }
|
---|
| 591 |
|
---|
| 592 | return vc;
|
---|
| 593 | }
|
---|
| 594 |
|
---|
| 595 |
|
---|
[480] | 596 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 597 | {
|
---|
| 598 | mRenderer = renderer;
|
---|
| 599 | }
|
---|
[441] | 600 |
|
---|
[485] | 601 |
|
---|
[580] | 602 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 603 | {
|
---|
[580] | 604 | return mViewCellsTree;
|
---|
[440] | 605 | }
|
---|
| 606 |
|
---|
| 607 |
|
---|
| 608 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 609 | {
|
---|
[444] | 610 | mVisualizationSamples = visSamples;
|
---|
[440] | 611 | }
|
---|
| 612 |
|
---|
[485] | 613 |
|
---|
[440] | 614 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 615 | {
|
---|
| 616 | mConstructionSamples = constructionSamples;
|
---|
| 617 | }
|
---|
| 618 |
|
---|
[485] | 619 |
|
---|
[574] | 620 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 621 | {
|
---|
| 622 | mInitialSamples = initialSamples;
|
---|
| 623 | }
|
---|
| 624 |
|
---|
| 625 |
|
---|
[440] | 626 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 627 | {
|
---|
| 628 | mPostProcessSamples = postProcessSamples;
|
---|
| 629 | }
|
---|
| 630 |
|
---|
[485] | 631 |
|
---|
[440] | 632 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 633 | {
|
---|
| 634 | return mVisualizationSamples;
|
---|
| 635 | }
|
---|
| 636 |
|
---|
[485] | 637 |
|
---|
[440] | 638 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 639 | {
|
---|
| 640 | return mConstructionSamples;
|
---|
| 641 | }
|
---|
| 642 |
|
---|
[485] | 643 |
|
---|
[440] | 644 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 645 | {
|
---|
| 646 | return mPostProcessSamples;
|
---|
| 647 | }
|
---|
| 648 |
|
---|
[485] | 649 |
|
---|
| 650 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 651 | {
|
---|
| 652 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 653 | stat.viewcells = 0;
|
---|
| 654 | stat.minPvs = 100000000;
|
---|
| 655 | stat.maxPvs = 0;
|
---|
| 656 | stat.avgPvs = 0.0f;
|
---|
| 657 |
|
---|
| 658 | for (; it != mViewCells.end(); ++it) {
|
---|
| 659 | ViewCell *viewcell = *it;
|
---|
| 660 | int pvsSize = viewcell->GetPvs().GetSize();
|
---|
| 661 | if ( pvsSize < stat.minPvs)
|
---|
| 662 | stat.minPvs = pvsSize;
|
---|
| 663 | if (pvsSize > stat.maxPvs)
|
---|
| 664 | stat.maxPvs = pvsSize;
|
---|
| 665 | stat.avgPvs += pvsSize;
|
---|
| 666 | stat.viewcells++;
|
---|
| 667 | }
|
---|
| 668 | if (stat.viewcells)
|
---|
| 669 | stat.avgPvs/=stat.viewcells;
|
---|
| 670 | }
|
---|
| 671 |
|
---|
[485] | 672 |
|
---|
[480] | 673 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 674 | {
|
---|
| 675 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 676 | PvsStatistics pvsStat;
|
---|
| 677 | GetPvsStatistics(pvsStat);
|
---|
| 678 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 679 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 680 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 681 | }
|
---|
| 682 |
|
---|
[485] | 683 |
|
---|
[532] | 684 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 685 | {
|
---|
| 686 | return 0;
|
---|
| 687 | }
|
---|
| 688 |
|
---|
[547] | 689 |
|
---|
[468] | 690 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 691 | {
|
---|
| 692 | return mViewCells;
|
---|
| 693 | }
|
---|
| 694 |
|
---|
[485] | 695 |
|
---|
[487] | 696 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 697 | {
|
---|
[542] | 698 | mViewSpaceBox = box;
|
---|
[591] | 699 |
|
---|
| 700 | CreateCuttingPlane();
|
---|
| 701 |
|
---|
[577] | 702 | mTotalAreaValid = false;
|
---|
[487] | 703 | }
|
---|
| 704 |
|
---|
| 705 |
|
---|
[591] | 706 | void ViewCellsManager::CreateCuttingPlane()
|
---|
| 707 | {
|
---|
| 708 | int axis = 0;
|
---|
| 709 |
|
---|
[609] | 710 | const float factor = 0.65;
|
---|
[598] | 711 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * factor;
|
---|
[591] | 712 |
|
---|
| 713 | if (mUseCuttingPlaneForViz)
|
---|
| 714 | environment->GetIntValue("ViewCells.Visualization.cuttingPlaneAxis", axis);
|
---|
| 715 |
|
---|
| 716 | Vector3 normal(0,0,0);
|
---|
| 717 | normal[axis] = 1;
|
---|
| 718 |
|
---|
| 719 | mCuttingPlane = Plane3(normal, point);
|
---|
| 720 | }
|
---|
| 721 |
|
---|
| 722 |
|
---|
[519] | 723 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 724 | {
|
---|
[542] | 725 | return mViewSpaceBox;
|
---|
[519] | 726 | }
|
---|
| 727 |
|
---|
| 728 |
|
---|
[480] | 729 | void ViewCellsManager::ResetViewCells()
|
---|
| 730 | {
|
---|
| 731 | mViewCells.clear();
|
---|
[590] | 732 |
|
---|
[480] | 733 | CollectViewCells();
|
---|
[590] | 734 |
|
---|
[480] | 735 | mViewCellsStats.Reset();
|
---|
| 736 | EvaluateViewCellsStats();
|
---|
[590] | 737 |
|
---|
[520] | 738 | // has to be recomputed
|
---|
[480] | 739 | mTotalAreaValid = false;
|
---|
| 740 | }
|
---|
| 741 |
|
---|
[485] | 742 |
|
---|
[547] | 743 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 744 | {
|
---|
| 745 | return mMaxPvsSize;
|
---|
| 746 | }
|
---|
| 747 |
|
---|
[590] | 748 |
|
---|
[563] | 749 | void
|
---|
| 750 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 751 | {
|
---|
| 752 | if (!ViewCellsConstructed())
|
---|
| 753 | return;
|
---|
[564] | 754 |
|
---|
[563] | 755 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 756 |
|
---|
[563] | 757 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 758 | AddSampleContributions(*(*it));
|
---|
| 759 | }
|
---|
| 760 | }
|
---|
[547] | 761 |
|
---|
[581] | 762 |
|
---|
[562] | 763 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 764 | {
|
---|
| 765 | return mMinPvsSize;
|
---|
| 766 | }
|
---|
| 767 |
|
---|
| 768 |
|
---|
| 769 |
|
---|
[561] | 770 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 771 | {
|
---|
| 772 | return mMaxPvsRatio;
|
---|
| 773 | }
|
---|
| 774 |
|
---|
| 775 |
|
---|
[563] | 776 | void
|
---|
| 777 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 778 | {
|
---|
[563] | 779 | // assumes viewcells have been stored...
|
---|
| 780 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 781 | ViewCellContainer::const_iterator it;
|
---|
| 782 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 783 | ViewCell *viewcell = *it;
|
---|
[569] | 784 | if (viewcell->GetValid()) {
|
---|
| 785 | // if ray not outside of view space
|
---|
| 786 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 787 | }
|
---|
[563] | 788 | }
|
---|
| 789 | }
|
---|
[503] | 790 |
|
---|
[574] | 791 |
|
---|
[570] | 792 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
[574] | 793 | const bool addRays,
|
---|
| 794 | const bool storeViewCells)
|
---|
[563] | 795 | {
|
---|
[570] | 796 | ViewCellContainer viewcells;
|
---|
[564] | 797 |
|
---|
[570] | 798 | ray.mPvsContribution = 0;
|
---|
| 799 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 800 |
|
---|
[570] | 801 | static Ray hray;
|
---|
[564] | 802 | hray.Init(ray);
|
---|
| 803 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 804 | //Ray hray(ray);
|
---|
| 805 |
|
---|
| 806 | float tmin = 0, tmax = 1.0;
|
---|
| 807 |
|
---|
| 808 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 809 | return 0;
|
---|
[564] | 810 |
|
---|
| 811 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 812 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 813 |
|
---|
| 814 | CastLineSegment(origin, termination, viewcells);
|
---|
| 815 | //Debug << "constribution: " << (int)viewcells.size() << endl;
|
---|
| 816 |
|
---|
[570] | 817 | // copy viewcells memory efficiently
|
---|
[574] | 818 | //const bool storeViewcells = !addRays;
|
---|
[564] | 819 |
|
---|
[574] | 820 | if (storeViewCells)
|
---|
[570] | 821 | {
|
---|
| 822 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 823 | ray.mViewCells = viewcells;
|
---|
| 824 | }
|
---|
[564] | 825 |
|
---|
[570] | 826 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 827 |
|
---|
| 828 |
|
---|
[563] | 829 | for (; it != viewcells.end(); ++it) {
|
---|
| 830 | ViewCell *viewcell = *it;
|
---|
[569] | 831 | if (viewcell->GetValid()) {
|
---|
| 832 | // if ray not outside of view space
|
---|
| 833 | float contribution;
|
---|
| 834 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 835 | ray.mPdf,
|
---|
| 836 | contribution
|
---|
| 837 | ))
|
---|
| 838 | ray.mPvsContribution++;
|
---|
| 839 | ray.mRelativePvsContribution += contribution;
|
---|
| 840 | }
|
---|
[563] | 841 | }
|
---|
[564] | 842 |
|
---|
[563] | 843 | if (addRays)
|
---|
| 844 | for (it = viewcells.begin(); it != viewcells.end(); ++it) {
|
---|
| 845 | ViewCell *viewcell = *it;
|
---|
[569] | 846 | if (viewcell->GetValid()) {
|
---|
| 847 | // if ray not outside of view space
|
---|
| 848 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 849 | }
|
---|
[563] | 850 | }
|
---|
[570] | 851 |
|
---|
| 852 | return ray.mRelativePvsContribution;
|
---|
[468] | 853 | }
|
---|
| 854 |
|
---|
| 855 |
|
---|
[469] | 856 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 857 | const int maxSize,
|
---|
[503] | 858 | VssRayContainer &usedRays,
|
---|
[485] | 859 | VssRayContainer *savedRays) const
|
---|
[469] | 860 | {
|
---|
[485] | 861 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 862 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 863 |
|
---|
[485] | 864 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 865 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 866 | {
|
---|
[473] | 867 | if (Random(1.0f) < prop)
|
---|
[485] | 868 | usedRays.push_back(*it);
|
---|
| 869 | else if (savedRays)
|
---|
| 870 | savedRays->push_back(*it);
|
---|
[469] | 871 | }
|
---|
| 872 | }
|
---|
| 873 |
|
---|
[477] | 874 |
|
---|
[605] | 875 | float ViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
| 876 | {
|
---|
| 877 | return mViewCellsTree->GetPvsSize(viewCell) * objRendercost;
|
---|
| 878 | }
|
---|
| 879 |
|
---|
| 880 |
|
---|
[477] | 881 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 882 | {
|
---|
| 883 | // if already computed
|
---|
| 884 | if (mTotalAreaValid)
|
---|
| 885 | return mTotalArea;
|
---|
| 886 |
|
---|
| 887 | mTotalArea = 0;
|
---|
| 888 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 889 |
|
---|
| 890 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 891 | {
|
---|
| 892 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 893 | mTotalArea += GetArea(*it);
|
---|
[480] | 894 | }
|
---|
| 895 |
|
---|
[470] | 896 | mTotalAreaValid = true;
|
---|
| 897 |
|
---|
| 898 | return mTotalArea;
|
---|
| 899 | }
|
---|
| 900 |
|
---|
[482] | 901 |
|
---|
[475] | 902 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 903 | {
|
---|
| 904 | s << mViewCellsStats << endl;
|
---|
| 905 | }
|
---|
| 906 |
|
---|
[477] | 907 |
|
---|
[508] | 908 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 909 | {
|
---|
[508] | 910 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 911 | mViewCells[i]->SetId(i);
|
---|
| 912 | }
|
---|
| 913 |
|
---|
| 914 |
|
---|
| 915 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 916 | {
|
---|
[482] | 917 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 918 |
|
---|
| 919 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 920 | {
|
---|
[574] | 921 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 922 | {
|
---|
[582] | 923 | ExportColor(exporter, *it);
|
---|
[591] | 924 | ExportViewCellGeometry(exporter, *it,
|
---|
| 925 | mUseCuttingPlaneForViz ? &mCuttingPlane : NULL);
|
---|
[574] | 926 | }
|
---|
[482] | 927 | }
|
---|
[582] | 928 |
|
---|
[482] | 929 | }
|
---|
| 930 |
|
---|
| 931 |
|
---|
[517] | 932 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 933 | {
|
---|
| 934 | // convert to meshes
|
---|
| 935 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 936 |
|
---|
| 937 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 938 | {
|
---|
[517] | 939 | if (!(*it)->GetMesh())
|
---|
| 940 | CreateMesh(*it);
|
---|
[503] | 941 | }
|
---|
| 942 | }
|
---|
| 943 |
|
---|
[508] | 944 |
|
---|
[564] | 945 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
| 946 | {
|
---|
[508] | 947 | return false;
|
---|
| 948 | }
|
---|
| 949 |
|
---|
| 950 |
|
---|
[610] | 951 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 952 | {
|
---|
[610] | 953 | mNumActiveViewCells = n;
|
---|
| 954 | mViewCells.clear();
|
---|
| 955 | CollectViewCells();
|
---|
| 956 | }
|
---|
[508] | 957 |
|
---|
| 958 |
|
---|
| 959 |
|
---|
[440] | 960 | /**********************************************************************/
|
---|
| 961 | /* BspViewCellsManager implementation */
|
---|
| 962 | /**********************************************************************/
|
---|
| 963 |
|
---|
[482] | 964 |
|
---|
[574] | 965 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 966 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 967 | {
|
---|
[574] | 968 | environment->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 969 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 970 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 971 | }
|
---|
| 972 |
|
---|
[462] | 973 |
|
---|
[440] | 974 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 975 | {
|
---|
| 976 | return mBspTree->GetRoot() != NULL;
|
---|
| 977 | }
|
---|
| 978 |
|
---|
[480] | 979 |
|
---|
[440] | 980 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 981 | {
|
---|
| 982 | return new BspViewCell(mesh);
|
---|
| 983 | }
|
---|
| 984 |
|
---|
[480] | 985 |
|
---|
[574] | 986 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 987 | const VssRayContainer &rays)
|
---|
[440] | 988 | {
|
---|
[441] | 989 | // if view cells were already constructed
|
---|
[440] | 990 | if (ViewCellsConstructed())
|
---|
| 991 | return 0;
|
---|
| 992 |
|
---|
| 993 | int sampleContributions = 0;
|
---|
[503] | 994 |
|
---|
[469] | 995 | // construct view cells using the collected samples
|
---|
| 996 | RayContainer constructionRays;
|
---|
| 997 | VssRayContainer savedRays;
|
---|
[440] | 998 |
|
---|
[574] | 999 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 1000 |
|
---|
[469] | 1001 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 1002 |
|
---|
[473] | 1003 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 1004 |
|
---|
[469] | 1005 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1006 | {
|
---|
[473] | 1007 | if (Random(1.0f) < prop)
|
---|
[469] | 1008 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 1009 | else
|
---|
| 1010 | savedRays.push_back(*it);
|
---|
| 1011 | }
|
---|
[440] | 1012 |
|
---|
[503] | 1013 | if (mViewCells.empty())
|
---|
| 1014 | {
|
---|
| 1015 | // no view cells loaded
|
---|
[587] | 1016 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 1017 | // collect final view cells
|
---|
| 1018 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 1019 | }
|
---|
[469] | 1020 | else
|
---|
| 1021 | {
|
---|
| 1022 | mBspTree->Construct(mViewCells);
|
---|
| 1023 | }
|
---|
| 1024 |
|
---|
| 1025 | // destroy rays created only for construction
|
---|
| 1026 | CLEAR_CONTAINER(constructionRays);
|
---|
| 1027 |
|
---|
[440] | 1028 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 1029 |
|
---|
| 1030 | //EvaluateViewCellsStats();
|
---|
[480] | 1031 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
| 1032 |
|
---|
[469] | 1033 | // recast rest of the rays
|
---|
[574] | 1034 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 1035 |
|
---|
[503] | 1036 |
|
---|
[587] | 1037 | ResetViewCells();
|
---|
| 1038 |
|
---|
| 1039 | Debug << "\nView cells after " << (int)savedRays.size()
|
---|
| 1040 | << " samples:\n" << mViewCellsStats << endl;
|
---|
| 1041 |
|
---|
| 1042 | if (1) // export initial view cells
|
---|
| 1043 | {
|
---|
| 1044 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
| 1045 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
| 1046 |
|
---|
| 1047 | if (exporter)
|
---|
| 1048 | {
|
---|
[600] | 1049 |
|
---|
[587] | 1050 | if (0 && mExportRays)
|
---|
| 1051 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
| 1052 |
|
---|
[600] | 1053 |
|
---|
[587] | 1054 | if (mExportGeometry)
|
---|
| 1055 | exporter->ExportGeometry(objects);
|
---|
| 1056 |
|
---|
[600] | 1057 | //exporter->SetWireframe();
|
---|
| 1058 | exporter->SetFilled();
|
---|
| 1059 | ExportViewCellsForViz(exporter);
|
---|
| 1060 |
|
---|
| 1061 |
|
---|
[587] | 1062 | delete exporter;
|
---|
| 1063 | }
|
---|
| 1064 | cout << "finished" << endl;
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
| 1067 |
|
---|
[440] | 1068 | return sampleContributions;
|
---|
| 1069 | }
|
---|
| 1070 |
|
---|
[503] | 1071 |
|
---|
[480] | 1072 | void BspViewCellsManager::CollectViewCells()
|
---|
| 1073 | {
|
---|
[587] | 1074 | // view cells tree constructed
|
---|
| 1075 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 1076 | {
|
---|
[587] | 1077 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 1078 | }
|
---|
| 1079 | else
|
---|
| 1080 | {
|
---|
| 1081 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 1082 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 1083 | mNumActiveViewCells);
|
---|
[587] | 1084 | }
|
---|
[480] | 1085 | }
|
---|
[468] | 1086 |
|
---|
[503] | 1087 |
|
---|
[471] | 1088 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 1089 | {
|
---|
[471] | 1090 | // compute view cell area as subsititute for probability
|
---|
[591] | 1091 | if (1)
|
---|
| 1092 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 1093 | else
|
---|
| 1094 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 1095 | }
|
---|
[440] | 1096 |
|
---|
[503] | 1097 |
|
---|
[440] | 1098 |
|
---|
[468] | 1099 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 1100 | const Vector3 &termination,
|
---|
| 1101 | ViewCellContainer &viewcells)
|
---|
[440] | 1102 | {
|
---|
[468] | 1103 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 1104 | }
|
---|
| 1105 |
|
---|
| 1106 |
|
---|
[503] | 1107 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 1108 | const VssRayContainer &rays)
|
---|
| 1109 | {
|
---|
[469] | 1110 | if (!ViewCellsConstructed())
|
---|
[441] | 1111 | {
|
---|
| 1112 | Debug << "view cells not constructed" << endl;
|
---|
| 1113 | return 0;
|
---|
| 1114 | }
|
---|
| 1115 |
|
---|
[590] | 1116 |
|
---|
| 1117 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 1118 | if (mViewCellsFinished)
|
---|
| 1119 | {
|
---|
| 1120 | FinalizeViewCells(true);
|
---|
| 1121 | EvaluateViewCellsStats();
|
---|
| 1122 |
|
---|
| 1123 | return 0;
|
---|
| 1124 | }
|
---|
| 1125 |
|
---|
[440] | 1126 | //-- post processing of bsp view cells
|
---|
[600] | 1127 |
|
---|
[440] | 1128 | int vcSize = 0;
|
---|
| 1129 | int pvsSize = 0;
|
---|
| 1130 |
|
---|
[480] | 1131 | EvaluateViewCellsStats();
|
---|
[485] | 1132 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl;
|
---|
[480] | 1133 |
|
---|
| 1134 | mRenderer->RenderScene();
|
---|
| 1135 | SimulationStatistics ss;
|
---|
| 1136 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 1137 |
|
---|
| 1138 | Debug << ss << endl;
|
---|
| 1139 |
|
---|
[591] | 1140 |
|
---|
[503] | 1141 |
|
---|
[591] | 1142 | //-- merge view cells
|
---|
| 1143 | int merged;
|
---|
[587] | 1144 |
|
---|
[592] | 1145 | if (mMergeViewCells)
|
---|
[591] | 1146 | {
|
---|
| 1147 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 1148 | long startTime = GetTime();
|
---|
| 1149 |
|
---|
| 1150 | VssRayContainer postProcessRays;
|
---|
| 1151 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
[440] | 1152 |
|
---|
[591] | 1153 | merged = mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[440] | 1154 |
|
---|
[591] | 1155 | //-- stats and visualizations
|
---|
| 1156 | cout << "finished" << endl;
|
---|
| 1157 | cout << "merged " << merged << " view cells in "
|
---|
| 1158 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[440] | 1159 |
|
---|
[591] | 1160 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
| 1161 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs"
|
---|
| 1162 | << "using " << (int)rays.size() << " samples" << endl << endl;
|
---|
| 1163 | }
|
---|
[503] | 1164 |
|
---|
[600] | 1165 | // reset view cells and stats
|
---|
[480] | 1166 | ResetViewCells();
|
---|
[605] | 1167 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
[600] | 1168 |
|
---|
| 1169 | int savedColorCode = mColorCode;
|
---|
[605] | 1170 |
|
---|
[600] | 1171 | //BspLeaf::NewMail();
|
---|
| 1172 | if (1) // export merged view cells
|
---|
| 1173 | {
|
---|
| 1174 | mColorCode = 0;
|
---|
[605] | 1175 |
|
---|
[600] | 1176 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
[605] | 1177 |
|
---|
[600] | 1178 |
|
---|
| 1179 | cout << "exporting view cells after merge ... ";
|
---|
| 1180 |
|
---|
| 1181 | if (exporter)
|
---|
| 1182 | {
|
---|
| 1183 | if (mExportGeometry)
|
---|
| 1184 | exporter->ExportGeometry(objects);
|
---|
| 1185 |
|
---|
| 1186 | //exporter->SetWireframe();
|
---|
| 1187 | exporter->SetFilled();
|
---|
| 1188 | ExportViewCellsForViz(exporter);
|
---|
| 1189 |
|
---|
| 1190 |
|
---|
| 1191 | delete exporter;
|
---|
| 1192 | }
|
---|
| 1193 | cout << "finished" << endl;
|
---|
| 1194 | }
|
---|
| 1195 |
|
---|
| 1196 | if (1) // export merged view cells
|
---|
| 1197 | {
|
---|
| 1198 | mColorCode = 1;
|
---|
| 1199 |
|
---|
| 1200 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.x3d");
|
---|
| 1201 |
|
---|
| 1202 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 1203 |
|
---|
| 1204 | if (exporter)
|
---|
| 1205 | {
|
---|
| 1206 | //exporter->SetWireframe();
|
---|
| 1207 |
|
---|
| 1208 | if (mExportGeometry)
|
---|
| 1209 | exporter->ExportGeometry(objects);
|
---|
| 1210 |
|
---|
| 1211 | //exporter->SetWireframe();
|
---|
| 1212 | exporter->SetFilled();
|
---|
| 1213 | ExportViewCellsForViz(exporter);
|
---|
| 1214 |
|
---|
| 1215 | delete exporter;
|
---|
| 1216 | }
|
---|
| 1217 | cout << "finished" << endl;
|
---|
| 1218 | }
|
---|
| 1219 |
|
---|
| 1220 | mColorCode = savedColorCode;
|
---|
| 1221 |
|
---|
[587] | 1222 | FinalizeViewCells(true);
|
---|
| 1223 |
|
---|
| 1224 | // write view cells to disc
|
---|
| 1225 | if (mExportViewCells)
|
---|
| 1226 | {
|
---|
| 1227 | char buff[100];
|
---|
| 1228 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
| 1229 | string vcFilename(buff);
|
---|
| 1230 |
|
---|
| 1231 | ExportViewCells(buff);
|
---|
| 1232 | }
|
---|
| 1233 |
|
---|
[440] | 1234 | return merged;
|
---|
| 1235 | }
|
---|
| 1236 |
|
---|
[477] | 1237 |
|
---|
| 1238 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 1239 | {
|
---|
| 1240 | }
|
---|
| 1241 |
|
---|
| 1242 |
|
---|
[440] | 1243 | int BspViewCellsManager::GetType() const
|
---|
| 1244 | {
|
---|
| 1245 | return BSP;
|
---|
| 1246 | }
|
---|
| 1247 |
|
---|
| 1248 |
|
---|
| 1249 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 1250 | const VssRayContainer &sampleRays)
|
---|
[440] | 1251 | {
|
---|
[469] | 1252 | if (!ViewCellsConstructed())
|
---|
| 1253 | return;
|
---|
[574] | 1254 |
|
---|
[600] | 1255 | int savedColorCode = mColorCode;
|
---|
| 1256 |
|
---|
| 1257 |
|
---|
| 1258 |
|
---|
| 1259 | if (1) // export final view cells
|
---|
[440] | 1260 | {
|
---|
[600] | 1261 | mColorCode = 1;
|
---|
[587] | 1262 |
|
---|
[600] | 1263 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
| 1264 |
|
---|
| 1265 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 1266 |
|
---|
[469] | 1267 | if (exporter)
|
---|
[440] | 1268 | {
|
---|
[600] | 1269 | //exporter->SetWireframe();
|
---|
| 1270 |
|
---|
| 1271 | if (mExportGeometry)
|
---|
| 1272 | exporter->ExportGeometry(objects);
|
---|
[590] | 1273 |
|
---|
[600] | 1274 | //exporter->SetWireframe();
|
---|
| 1275 | exporter->SetFilled();
|
---|
[508] | 1276 | ExportViewCellsForViz(exporter);
|
---|
[587] | 1277 |
|
---|
[469] | 1278 | delete exporter;
|
---|
[440] | 1279 | }
|
---|
[469] | 1280 | cout << "finished" << endl;
|
---|
[503] | 1281 | }
|
---|
[477] | 1282 |
|
---|
[600] | 1283 | mColorCode = savedColorCode;
|
---|
| 1284 |
|
---|
[469] | 1285 | //-- visualization of the BSP splits
|
---|
| 1286 | bool exportSplits = false;
|
---|
| 1287 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 1288 |
|
---|
[469] | 1289 | if (exportSplits)
|
---|
[440] | 1290 | {
|
---|
[469] | 1291 | cout << "exporting splits ... ";
|
---|
[477] | 1292 | ExportSplits(objects);
|
---|
[469] | 1293 | cout << "finished" << endl;
|
---|
[440] | 1294 | }
|
---|
[477] | 1295 |
|
---|
[600] | 1296 | // export single view cells
|
---|
[477] | 1297 | ExportBspPvs(objects);
|
---|
[440] | 1298 | }
|
---|
| 1299 |
|
---|
| 1300 |
|
---|
[503] | 1301 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
| 1302 | {
|
---|
[440] | 1303 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
| 1304 | }
|
---|
| 1305 |
|
---|
[477] | 1306 |
|
---|
| 1307 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 1308 | {
|
---|
| 1309 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 1310 |
|
---|
[503] | 1311 | if (exporter)
|
---|
| 1312 | {
|
---|
[598] | 1313 | //exporter->SetFilled();
|
---|
| 1314 |
|
---|
| 1315 | if (mExportGeometry)
|
---|
| 1316 | exporter->ExportGeometry(objects);
|
---|
| 1317 |
|
---|
[503] | 1318 | Material m;
|
---|
[440] | 1319 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1320 | exporter->SetForcedMaterial(m);
|
---|
| 1321 | exporter->SetWireframe();
|
---|
[503] | 1322 |
|
---|
[440] | 1323 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 1324 |
|
---|
[482] | 1325 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 1326 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 1327 | exporter->SetForcedMaterial(m);
|
---|
[482] | 1328 | //exporter->ResetForcedMaterial();
|
---|
| 1329 |
|
---|
[440] | 1330 | delete exporter;
|
---|
| 1331 | }
|
---|
| 1332 | }
|
---|
| 1333 |
|
---|
[477] | 1334 |
|
---|
| 1335 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 1336 | {
|
---|
[477] | 1337 | const int leafOut = 10;
|
---|
[503] | 1338 |
|
---|
[477] | 1339 | ViewCell::NewMail();
|
---|
[440] | 1340 |
|
---|
[477] | 1341 | //-- some rays for output
|
---|
| 1342 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 1343 |
|
---|
[477] | 1344 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 1345 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 1346 |
|
---|
[478] | 1347 | // sort view cells to get largest view cells
|
---|
[587] | 1348 | if (0)
|
---|
| 1349 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
| 1350 |
|
---|
[503] | 1351 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 1352 |
|
---|
[478] | 1353 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 1354 | {
|
---|
[478] | 1355 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 1356 | VssRayContainer vcRays;
|
---|
| 1357 | Intersectable::NewMail();
|
---|
[582] | 1358 | ViewCell *vc;
|
---|
| 1359 |
|
---|
| 1360 | if (0)
|
---|
| 1361 | vc = mViewCells[i];
|
---|
| 1362 | else
|
---|
| 1363 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 1364 |
|
---|
[478] | 1365 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 1366 |
|
---|
[587] | 1367 | if(0)
|
---|
[477] | 1368 | {
|
---|
[587] | 1369 | // check whether we can add the current ray to the output rays
|
---|
| 1370 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 1371 | {
|
---|
[587] | 1372 | BspRay *ray = mBspRays[k];
|
---|
| 1373 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 1374 | {
|
---|
| 1375 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 1376 | if (vc == leaf->GetViewCell())
|
---|
| 1377 | vcRays.push_back(ray->vssRay);
|
---|
| 1378 | }
|
---|
[477] | 1379 | }
|
---|
| 1380 | }
|
---|
[587] | 1381 |
|
---|
[478] | 1382 | //bspLeaves[j]->Mail();
|
---|
| 1383 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 1384 |
|
---|
[478] | 1385 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 1386 |
|
---|
[478] | 1387 | exporter->SetWireframe();
|
---|
[477] | 1388 |
|
---|
[478] | 1389 | Material m;//= RandomMaterial();
|
---|
| 1390 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 1391 | exporter->SetForcedMaterial(m);
|
---|
[477] | 1392 |
|
---|
[587] | 1393 | ExportViewCellGeometry(exporter, vc);
|
---|
| 1394 |
|
---|
[478] | 1395 | // export rays piercing this view cell
|
---|
| 1396 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 1397 |
|
---|
[478] | 1398 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1399 | exporter->SetForcedMaterial(m);
|
---|
[440] | 1400 |
|
---|
[478] | 1401 | ObjectPvsMap::const_iterator it,
|
---|
| 1402 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 1403 |
|
---|
[478] | 1404 | exporter->SetFilled();
|
---|
[469] | 1405 |
|
---|
[478] | 1406 | // output PVS of view cell
|
---|
[503] | 1407 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 1408 | {
|
---|
| 1409 | Intersectable *intersect = (*it).first;
|
---|
[469] | 1410 |
|
---|
[478] | 1411 | if (!intersect->Mailed())
|
---|
| 1412 | {
|
---|
| 1413 | Material m = RandomMaterial();
|
---|
| 1414 | exporter->SetForcedMaterial(m);
|
---|
| 1415 |
|
---|
| 1416 | exporter->ExportIntersectable(intersect);
|
---|
| 1417 | intersect->Mail();
|
---|
[503] | 1418 | }
|
---|
[477] | 1419 | }
|
---|
[503] | 1420 |
|
---|
[478] | 1421 | DEL_PTR(exporter);
|
---|
| 1422 | cout << "finished" << endl;
|
---|
[477] | 1423 | }
|
---|
| 1424 |
|
---|
| 1425 | Debug << endl;
|
---|
[440] | 1426 | }
|
---|
| 1427 |
|
---|
[441] | 1428 |
|
---|
[503] | 1429 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 1430 | ViewCell *vc) const
|
---|
| 1431 | {
|
---|
[600] | 1432 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[482] | 1433 |
|
---|
| 1434 | float importance = 0;
|
---|
[598] | 1435 | static Material m;
|
---|
[482] | 1436 |
|
---|
| 1437 | switch (mColorCode)
|
---|
| 1438 | {
|
---|
[598] | 1439 | case 0: // Random
|
---|
| 1440 | {
|
---|
| 1441 | if (vcValid)
|
---|
| 1442 | {
|
---|
| 1443 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 1444 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[600] | 1445 | m.mDiffuseColor.b = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[598] | 1446 | }
|
---|
| 1447 | else
|
---|
| 1448 | {
|
---|
| 1449 | m.mDiffuseColor.r = 0.0f;
|
---|
| 1450 | m.mDiffuseColor.g = 1.0f;
|
---|
| 1451 | m.mDiffuseColor.b = 0.0f;
|
---|
| 1452 | }
|
---|
| 1453 |
|
---|
| 1454 | exporter->SetForcedMaterial(m);
|
---|
| 1455 | return;
|
---|
| 1456 | }
|
---|
| 1457 |
|
---|
[482] | 1458 | case 1: // pvs
|
---|
| 1459 | {
|
---|
[503] | 1460 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[482] | 1461 | (float)mViewCellsStats.maxPvs;
|
---|
[598] | 1462 |
|
---|
[482] | 1463 | }
|
---|
| 1464 | break;
|
---|
| 1465 | case 2: // merges
|
---|
| 1466 | {
|
---|
[598] | 1467 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
| 1468 | importance = (float)lSize / (float)mViewCellsStats.maxLeaves;
|
---|
[482] | 1469 | }
|
---|
[598] | 1470 | //break;
|
---|
[482] | 1471 | case 3: // merge tree differene
|
---|
| 1472 | {
|
---|
| 1473 | // TODO
|
---|
[598] | 1474 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 1475 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 1476 |
|
---|
[482] | 1477 | }
|
---|
| 1478 | break;
|
---|
| 1479 | default:
|
---|
| 1480 | break;
|
---|
| 1481 | }
|
---|
| 1482 |
|
---|
[598] | 1483 | // special color code for invalid view cells
|
---|
[482] | 1484 | m.mDiffuseColor.r = importance;
|
---|
| 1485 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[598] | 1486 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[503] | 1487 |
|
---|
[598] | 1488 | //Debug << "importance: " << importance << endl;
|
---|
[482] | 1489 | exporter->SetForcedMaterial(m);
|
---|
| 1490 | }
|
---|
| 1491 |
|
---|
[587] | 1492 |
|
---|
[580] | 1493 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 1494 | ViewCell *vc,
|
---|
| 1495 | const Plane3 *cuttingPlane) const
|
---|
[482] | 1496 | {
|
---|
| 1497 | if (vc->GetMesh())
|
---|
| 1498 | {
|
---|
[587] | 1499 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 1500 | return;
|
---|
[482] | 1501 | }
|
---|
[587] | 1502 |
|
---|
| 1503 | BspNodeGeometry geom;
|
---|
| 1504 | mBspTree->ConstructGeometry(vc, geom);
|
---|
[591] | 1505 |
|
---|
| 1506 |
|
---|
| 1507 | if (cuttingPlane)
|
---|
| 1508 | {
|
---|
| 1509 | BspNodeGeometry front;
|
---|
| 1510 | BspNodeGeometry back;
|
---|
| 1511 |
|
---|
| 1512 | geom.SplitGeometry(front,
|
---|
| 1513 | back,
|
---|
| 1514 | *cuttingPlane,
|
---|
| 1515 | mViewSpaceBox,
|
---|
[600] | 1516 | 0.0001f);
|
---|
[591] | 1517 |
|
---|
[600] | 1518 | if ((int)back.mPolys.size() >= 3)
|
---|
| 1519 | exporter->ExportPolygons(back.mPolys);
|
---|
[591] | 1520 | }
|
---|
| 1521 | else
|
---|
| 1522 | {
|
---|
[600] | 1523 |
|
---|
[591] | 1524 | exporter->ExportPolygons(geom.mPolys);
|
---|
| 1525 | }
|
---|
[482] | 1526 | }
|
---|
| 1527 |
|
---|
[503] | 1528 |
|
---|
| 1529 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 1530 | {
|
---|
[587] | 1531 | if (vc->GetMesh())
|
---|
| 1532 | delete vc->GetMesh();
|
---|
| 1533 |
|
---|
| 1534 | BspNodeGeometry geom;
|
---|
| 1535 |
|
---|
| 1536 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 1537 |
|
---|
| 1538 | Mesh *mesh = new Mesh();
|
---|
| 1539 | geom.AddToMesh(*mesh);
|
---|
| 1540 | vc->SetMesh(mesh);
|
---|
| 1541 | mMeshContainer.push_back(mesh);
|
---|
[503] | 1542 | }
|
---|
| 1543 |
|
---|
[551] | 1544 |
|
---|
[587] | 1545 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 1546 | const bool createMesh)
|
---|
[502] | 1547 | {
|
---|
[587] | 1548 | CreateMesh(viewCell);
|
---|
[572] | 1549 |
|
---|
[587] | 1550 | float area = 0;
|
---|
| 1551 | float volume = 0;
|
---|
[572] | 1552 |
|
---|
[587] | 1553 | ViewCellContainer leaves;
|
---|
| 1554 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 1555 |
|
---|
| 1556 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1557 |
|
---|
| 1558 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1559 | {
|
---|
| 1560 | BspNodeGeometry geom;
|
---|
| 1561 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 1562 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 1563 |
|
---|
| 1564 | area += geom.GetArea();
|
---|
| 1565 | volume += geom.GetVolume();
|
---|
| 1566 | }
|
---|
| 1567 |
|
---|
| 1568 | viewCell->SetVolume(volume);
|
---|
| 1569 | viewCell->SetArea(area);
|
---|
[502] | 1570 | }
|
---|
| 1571 |
|
---|
[580] | 1572 |
|
---|
[587] | 1573 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
[580] | 1574 | {
|
---|
[587] | 1575 | if (!mBspTree)
|
---|
| 1576 | return NULL;
|
---|
| 1577 |
|
---|
| 1578 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 1579 | return NULL;
|
---|
| 1580 |
|
---|
| 1581 | return mBspTree->GetViewCell(point);
|
---|
[580] | 1582 | }
|
---|
| 1583 |
|
---|
| 1584 |
|
---|
[587] | 1585 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1586 | vector<MergeCandidate> &candidates)
|
---|
| 1587 | {
|
---|
| 1588 | cout << "collecting merge candidates ... " << endl;
|
---|
| 1589 |
|
---|
| 1590 | if (mUseRaysForMerge)
|
---|
| 1591 | {
|
---|
| 1592 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 1593 | }
|
---|
| 1594 | else
|
---|
| 1595 | {
|
---|
| 1596 | vector<BspLeaf *> leaves;
|
---|
| 1597 | mBspTree->CollectLeaves(leaves);
|
---|
| 1598 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 1599 | }
|
---|
| 1600 |
|
---|
| 1601 | cout << "fininshed collecting candidates" << endl;
|
---|
| 1602 | }
|
---|
| 1603 |
|
---|
| 1604 |
|
---|
[440] | 1605 |
|
---|
[590] | 1606 | bool BspViewCellsManager::ExportViewCells(const string filename)
|
---|
| 1607 | {
|
---|
| 1608 | cout << "exporting view cells to xml ... ";
|
---|
| 1609 | std::ofstream stream;
|
---|
[503] | 1610 |
|
---|
[590] | 1611 | // for output we need unique ids for each view cell
|
---|
| 1612 | CreateUniqueViewCellIds();
|
---|
[503] | 1613 |
|
---|
[590] | 1614 |
|
---|
| 1615 | stream.open(filename.c_str());
|
---|
| 1616 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 1617 | stream << "<Visibility_Solution>" << endl;
|
---|
| 1618 |
|
---|
| 1619 | //-- the view space bounding box
|
---|
| 1620 | stream << "<ViewSpaceBox"
|
---|
| 1621 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 1622 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 1623 |
|
---|
| 1624 | //-- the type of the view cells hierarchy
|
---|
| 1625 | //stream << "<Hierarchy name=\"bspTree\" />" << endl;
|
---|
| 1626 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl; // write vsp bsp here because can use same tree and is bug free
|
---|
| 1627 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 1628 | stream << "<ViewCells>" << endl;
|
---|
[610] | 1629 |
|
---|
| 1630 | #if 0
|
---|
| 1631 |
|
---|
[590] | 1632 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[610] | 1633 |
|
---|
[590] | 1634 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1635 | ExportViewCell(*it, stream);
|
---|
[610] | 1636 | #else
|
---|
| 1637 | mViewCellsTree->Export(stream);
|
---|
| 1638 | #endif
|
---|
[590] | 1639 |
|
---|
| 1640 | stream << "</ViewCells>" << endl;
|
---|
| 1641 |
|
---|
| 1642 | //-- load the hierarchy
|
---|
| 1643 | stream << "<Hierarchy>" << endl;
|
---|
| 1644 | mBspTree->Export(stream);
|
---|
| 1645 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 1646 |
|
---|
| 1647 | stream << "</Visibility_Solution>" << endl;
|
---|
| 1648 | stream.close();
|
---|
| 1649 |
|
---|
| 1650 | cout << "finished" << endl;
|
---|
| 1651 |
|
---|
| 1652 | return true;
|
---|
| 1653 | }
|
---|
| 1654 |
|
---|
| 1655 |
|
---|
| 1656 | void BspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
| 1657 | {
|
---|
| 1658 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1659 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1660 | {
|
---|
| 1661 | ViewCell *vc = *it;
|
---|
| 1662 | ViewCellContainer leaves;
|
---|
| 1663 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 1664 |
|
---|
| 1665 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 1666 |
|
---|
| 1667 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 1668 | {
|
---|
| 1669 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(*lit);
|
---|
| 1670 | bspVc->mLeaf->SetViewCell(vc);
|
---|
| 1671 | }
|
---|
| 1672 | }
|
---|
| 1673 | }
|
---|
| 1674 |
|
---|
[610] | 1675 |
|
---|
| 1676 | void BspViewCellsManager::CreateMergeHierarchy()
|
---|
| 1677 | {
|
---|
| 1678 | TraversalQueue tQueue;
|
---|
| 1679 |
|
---|
| 1680 | tQueue.push(TraversalData(mBspTree->GetRoot(), NULL));
|
---|
| 1681 |
|
---|
| 1682 | while (!tQueue.empty())
|
---|
| 1683 | {
|
---|
| 1684 | TraversalData tData = tQueue.top();
|
---|
| 1685 | tQueue.pop();
|
---|
| 1686 |
|
---|
| 1687 | if (tData.mNode->IsLeaf())
|
---|
| 1688 | {
|
---|
| 1689 | ViewCell *viewCell = dynamic_cast<BspLeaf *>(tData.mNode)->GetViewCell();
|
---|
| 1690 | viewCell->SetMergeCost((float)tData.mNode->mTimeStamp);
|
---|
| 1691 |
|
---|
| 1692 | if (tData.mParentViewCell)
|
---|
| 1693 | {
|
---|
| 1694 | tData.mParentViewCell->SetupChildLink(viewCell);
|
---|
| 1695 | // probagate up pvs
|
---|
| 1696 | mViewCellsTree->PropagateUpPvs(viewCell);
|
---|
| 1697 | }
|
---|
| 1698 | }
|
---|
| 1699 | else
|
---|
| 1700 | {
|
---|
| 1701 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
| 1702 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 1703 | viewCellInterior->SetMergeCost((float)tData.mNode->mTimeStamp);
|
---|
| 1704 |
|
---|
| 1705 |
|
---|
| 1706 | tQueue.push(TraversalData(interior->GetBack(), viewCellInterior));
|
---|
| 1707 | tQueue.push(TraversalData(interior->GetFront(), viewCellInterior));
|
---|
| 1708 |
|
---|
| 1709 | if (tData.mParentViewCell)
|
---|
| 1710 | tData.mParentViewCell->SetupChildLink(viewCellInterior);
|
---|
| 1711 | }
|
---|
| 1712 | }
|
---|
| 1713 | }
|
---|
| 1714 |
|
---|
[590] | 1715 | /************************************************************************/
|
---|
| 1716 | /* KdViewCellsManager implementation */
|
---|
| 1717 | /************************************************************************/
|
---|
| 1718 |
|
---|
| 1719 |
|
---|
| 1720 |
|
---|
[440] | 1721 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
[469] | 1722 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 1723 | {
|
---|
| 1724 | }
|
---|
| 1725 |
|
---|
[605] | 1726 |
|
---|
[471] | 1727 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 1728 | {
|
---|
[479] | 1729 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 1730 | if (0)
|
---|
| 1731 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 1732 | else
|
---|
| 1733 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 1734 | }
|
---|
| 1735 |
|
---|
| 1736 |
|
---|
| 1737 |
|
---|
[479] | 1738 |
|
---|
[480] | 1739 | void KdViewCellsManager::CollectViewCells()
|
---|
| 1740 | {
|
---|
| 1741 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 1742 | }
|
---|
[479] | 1743 |
|
---|
[519] | 1744 |
|
---|
[574] | 1745 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 1746 | const VssRayContainer &rays)
|
---|
[440] | 1747 | {
|
---|
[441] | 1748 | // if view cells already constructed
|
---|
[440] | 1749 | if (ViewCellsConstructed())
|
---|
| 1750 | return 0;
|
---|
[441] | 1751 |
|
---|
[440] | 1752 | mKdTree->Construct();
|
---|
| 1753 |
|
---|
[480] | 1754 | mTotalAreaValid = false;
|
---|
[469] | 1755 | // create the view cells
|
---|
| 1756 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 1757 |
|
---|
[480] | 1758 | // cast rays
|
---|
[574] | 1759 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 1760 |
|
---|
[479] | 1761 | EvaluateViewCellsStats();
|
---|
[480] | 1762 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
[469] | 1763 |
|
---|
[440] | 1764 | return 0;
|
---|
| 1765 | }
|
---|
| 1766 |
|
---|
[587] | 1767 |
|
---|
[440] | 1768 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 1769 | {
|
---|
| 1770 | return mKdTree->GetRoot() != NULL;
|
---|
| 1771 | }
|
---|
| 1772 |
|
---|
[503] | 1773 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1774 | const VssRayContainer &rays)
|
---|
[440] | 1775 | {
|
---|
| 1776 | return 0;
|
---|
| 1777 | }
|
---|
| 1778 |
|
---|
| 1779 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 1780 | const VssRayContainer &sampleRays)
|
---|
[440] | 1781 | {
|
---|
[441] | 1782 | if (!ViewCellsConstructed())
|
---|
| 1783 | return;
|
---|
| 1784 |
|
---|
[469] | 1785 | // using view cells instead of the kd PVS of objects
|
---|
| 1786 | const bool useViewCells = true;
|
---|
| 1787 | bool exportRays = false;
|
---|
[440] | 1788 |
|
---|
| 1789 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 1790 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 1791 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 1792 |
|
---|
[469] | 1793 | if (useViewCells)
|
---|
[440] | 1794 | {
|
---|
[469] | 1795 | const int leafOut = 10;
|
---|
[503] | 1796 |
|
---|
[469] | 1797 | ViewCell::NewMail();
|
---|
[503] | 1798 |
|
---|
[469] | 1799 | //-- some rays for output
|
---|
| 1800 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 1801 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 1802 |
|
---|
| 1803 | //-- some random view cells and rays for output
|
---|
| 1804 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 1805 |
|
---|
[469] | 1806 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 1807 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 1808 |
|
---|
[469] | 1809 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 1810 | {
|
---|
[469] | 1811 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 1812 | RayContainer vcRays;
|
---|
[503] | 1813 |
|
---|
[469] | 1814 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 1815 | #if 0
|
---|
[469] | 1816 | // check whether we can add the current ray to the output rays
|
---|
[503] | 1817 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 1818 | {
|
---|
[469] | 1819 | Ray *ray = sampleRays[k];
|
---|
[503] | 1820 |
|
---|
[469] | 1821 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 1822 | {
|
---|
| 1823 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 1824 |
|
---|
| 1825 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 1826 | {
|
---|
| 1827 | vcRays.push_back(ray);
|
---|
| 1828 | }
|
---|
| 1829 | }
|
---|
[479] | 1830 | }
|
---|
[503] | 1831 | #endif
|
---|
[469] | 1832 | Intersectable::NewMail();
|
---|
[503] | 1833 |
|
---|
[469] | 1834 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 1835 |
|
---|
[469] | 1836 | //bspLeaves[j]->Mail();
|
---|
| 1837 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 1838 |
|
---|
[469] | 1839 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 1840 | exporter->SetFilled();
|
---|
| 1841 |
|
---|
| 1842 | exporter->SetWireframe();
|
---|
| 1843 | //exporter->SetFilled();
|
---|
[503] | 1844 |
|
---|
[469] | 1845 | Material m;//= RandomMaterial();
|
---|
| 1846 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 1847 | exporter->SetForcedMaterial(m);
|
---|
[503] | 1848 |
|
---|
[469] | 1849 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 1850 | exporter->ExportBox(box);
|
---|
| 1851 |
|
---|
| 1852 | // export rays piercing this view cell
|
---|
[503] | 1853 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 1854 |
|
---|
[469] | 1855 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1856 | exporter->SetForcedMaterial(m);
|
---|
[503] | 1857 |
|
---|
[469] | 1858 | // exporter->SetWireframe();
|
---|
| 1859 | exporter->SetFilled();
|
---|
[503] | 1860 |
|
---|
[469] | 1861 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
| 1862 | // output PVS of view cell
|
---|
[503] | 1863 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 1864 | {
|
---|
| 1865 | Intersectable *intersect = (*it).first;
|
---|
| 1866 | if (!intersect->Mailed())
|
---|
| 1867 | {
|
---|
| 1868 | exporter->ExportIntersectable(intersect);
|
---|
| 1869 | intersect->Mail();
|
---|
[503] | 1870 | }
|
---|
[440] | 1871 | }
|
---|
[503] | 1872 |
|
---|
[469] | 1873 | DEL_PTR(exporter);
|
---|
| 1874 | cout << "finished" << endl;
|
---|
[440] | 1875 | }
|
---|
[469] | 1876 |
|
---|
| 1877 | DEL_PTR(rays);
|
---|
[440] | 1878 | }
|
---|
[469] | 1879 | else // using kd PVS of objects
|
---|
| 1880 | {
|
---|
| 1881 | for (int i = 0; i < limit; ++ i)
|
---|
| 1882 | {
|
---|
| 1883 | VssRay *ray = sampleRays[i];
|
---|
[503] | 1884 |
|
---|
[469] | 1885 | // check whether we can add this to the rays
|
---|
[503] | 1886 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 1887 | {
|
---|
| 1888 | if (objects[j] == ray->mTerminationObject)
|
---|
| 1889 | {
|
---|
| 1890 | rays[j].push_back(ray);
|
---|
| 1891 | }
|
---|
| 1892 | }
|
---|
| 1893 | }
|
---|
[440] | 1894 |
|
---|
[503] | 1895 | if (exportRays)
|
---|
[469] | 1896 | {
|
---|
| 1897 | Exporter *exporter = NULL;
|
---|
| 1898 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 1899 | exporter->SetWireframe();
|
---|
| 1900 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 1901 |
|
---|
| 1902 | for (i=0; i < pvsOut; i++)
|
---|
[469] | 1903 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 1904 |
|
---|
| 1905 | exporter->SetFilled();
|
---|
[503] | 1906 |
|
---|
[469] | 1907 | delete exporter;
|
---|
| 1908 | }
|
---|
[440] | 1909 |
|
---|
[503] | 1910 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 1911 | {
|
---|
| 1912 | Intersectable *object = objects[k];
|
---|
[503] | 1913 | char s[64];
|
---|
[469] | 1914 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 1915 |
|
---|
[469] | 1916 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 1917 | exporter->SetWireframe();
|
---|
[503] | 1918 |
|
---|
[469] | 1919 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 1920 | Intersectable::NewMail();
|
---|
[503] | 1921 |
|
---|
[469] | 1922 | // avoid adding the object to the list
|
---|
| 1923 | object->Mail();
|
---|
| 1924 | ObjectContainer visibleObjects;
|
---|
[503] | 1925 |
|
---|
| 1926 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 1927 | {
|
---|
| 1928 | KdNode *node = (*i).first;
|
---|
| 1929 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 1930 |
|
---|
[469] | 1931 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 1932 | }
|
---|
[503] | 1933 |
|
---|
[469] | 1934 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 1935 | exporter->SetFilled();
|
---|
[503] | 1936 |
|
---|
[469] | 1937 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 1938 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 1939 |
|
---|
[469] | 1940 | Material m;
|
---|
| 1941 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1942 | exporter->SetForcedMaterial(m);
|
---|
| 1943 | exporter->ExportIntersectable(object);
|
---|
[503] | 1944 |
|
---|
[469] | 1945 | delete exporter;
|
---|
[440] | 1946 | }
|
---|
[503] | 1947 | }
|
---|
[440] | 1948 | }
|
---|
| 1949 |
|
---|
[469] | 1950 |
|
---|
[482] | 1951 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 1952 | ViewCell *vc) const
|
---|
| 1953 | {
|
---|
| 1954 | // TODO
|
---|
| 1955 | }
|
---|
| 1956 |
|
---|
[580] | 1957 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 1958 | {
|
---|
| 1959 | return new KdViewCell(mesh);
|
---|
| 1960 | }
|
---|
[482] | 1961 |
|
---|
[580] | 1962 |
|
---|
| 1963 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 1964 | ViewCell *vc,
|
---|
| 1965 | const Plane3 *cuttingPlane) const
|
---|
[482] | 1966 | {
|
---|
[580] | 1967 | ViewCellContainer leaves;
|
---|
[485] | 1968 |
|
---|
[580] | 1969 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 1970 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1971 |
|
---|
| 1972 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1973 | {
|
---|
| 1974 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 1975 |
|
---|
| 1976 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 1977 | }
|
---|
[482] | 1978 | }
|
---|
| 1979 |
|
---|
| 1980 |
|
---|
[440] | 1981 | int KdViewCellsManager::GetType() const
|
---|
| 1982 | {
|
---|
| 1983 | return ViewCellsManager::KD;
|
---|
| 1984 | }
|
---|
| 1985 |
|
---|
| 1986 |
|
---|
[441] | 1987 |
|
---|
[440] | 1988 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 1989 | {
|
---|
| 1990 | KdNode *node = leaf;
|
---|
| 1991 |
|
---|
| 1992 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 1993 | node = node->mParent;
|
---|
| 1994 | return node;
|
---|
| 1995 | }
|
---|
| 1996 |
|
---|
[469] | 1997 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 1998 | const Vector3 &termination,
|
---|
| 1999 | ViewCellContainer &viewcells)
|
---|
[466] | 2000 | {
|
---|
[469] | 2001 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 2002 | }
|
---|
| 2003 |
|
---|
[469] | 2004 |
|
---|
[503] | 2005 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2006 | {
|
---|
[551] | 2007 | // TODO
|
---|
[503] | 2008 | }
|
---|
| 2009 |
|
---|
[580] | 2010 |
|
---|
| 2011 |
|
---|
| 2012 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2013 | vector<MergeCandidate> &candidates)
|
---|
| 2014 | {
|
---|
| 2015 | // TODO
|
---|
| 2016 | }
|
---|
| 2017 |
|
---|
| 2018 |
|
---|
[440] | 2019 | /**********************************************************************/
|
---|
| 2020 | /* VspKdViewCellsManager implementation */
|
---|
| 2021 | /**********************************************************************/
|
---|
| 2022 |
|
---|
[482] | 2023 |
|
---|
[574] | 2024 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree):
|
---|
| 2025 | ViewCellsManager(), mVspKdTree(vspKdTree)
|
---|
[440] | 2026 | {
|
---|
[574] | 2027 | environment->GetIntValue("VspKdTree.Construction.samples", mInitialSamples);
|
---|
[468] | 2028 | mVspKdTree->SetViewCellsManager(this);
|
---|
| 2029 | }
|
---|
[462] | 2030 |
|
---|
[471] | 2031 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 2032 | {
|
---|
[605] | 2033 | // compute view cell area / volume as subsititute for probability
|
---|
| 2034 | if (0)
|
---|
| 2035 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 2036 | else
|
---|
| 2037 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[440] | 2038 | }
|
---|
| 2039 |
|
---|
[462] | 2040 |
|
---|
[468] | 2041 |
|
---|
[503] | 2042 |
|
---|
[480] | 2043 | void VspKdViewCellsManager::CollectViewCells()
|
---|
| 2044 | {
|
---|
| 2045 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
| 2046 | }
|
---|
[462] | 2047 |
|
---|
[570] | 2048 |
|
---|
[574] | 2049 | int VspKdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2050 | const VssRayContainer &rays)
|
---|
[440] | 2051 | {
|
---|
[441] | 2052 | // if view cells already constructed
|
---|
[440] | 2053 | if (ViewCellsConstructed())
|
---|
| 2054 | return 0;
|
---|
[503] | 2055 |
|
---|
[469] | 2056 | VssRayContainer constructionRays;
|
---|
| 2057 | VssRayContainer savedRays;
|
---|
[440] | 2058 |
|
---|
[503] | 2059 | GetRaySets(rays,
|
---|
[574] | 2060 | mInitialSamples,
|
---|
[503] | 2061 | constructionRays,
|
---|
[485] | 2062 | &savedRays);
|
---|
[503] | 2063 |
|
---|
| 2064 | Debug << "constructing vsp kd tree using "
|
---|
[469] | 2065 | << (int)constructionRays.size() << " samples" << endl;
|
---|
[452] | 2066 |
|
---|
[542] | 2067 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[452] | 2068 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
| 2069 |
|
---|
[482] | 2070 | // export leaf building blocks
|
---|
| 2071 | ExportLeaves(objects, rays);
|
---|
[480] | 2072 |
|
---|
[469] | 2073 | // finally merge kd leaf building blocks to view cells
|
---|
[485] | 2074 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
| 2075 |
|
---|
| 2076 | // collapse siblings belonging to the same view cell
|
---|
[486] | 2077 | mVspKdTree->RefineViewCells(rays);
|
---|
[485] | 2078 |
|
---|
[542] | 2079 | // collapse siblings belonging to the same view cell
|
---|
[503] | 2080 | mVspKdTree->CollapseTree();
|
---|
| 2081 |
|
---|
[482] | 2082 | // evaluale view cell stats
|
---|
| 2083 | ResetViewCells();
|
---|
[469] | 2084 |
|
---|
[482] | 2085 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
| 2086 |
|
---|
[485] | 2087 | long startTime = GetTime();
|
---|
[469] | 2088 | // recast rest of rays
|
---|
[574] | 2089 | ComputeSampleContributions(savedRays, true, false);
|
---|
[503] | 2090 |
|
---|
| 2091 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 2092 | << " secs" << endl;
|
---|
[469] | 2093 |
|
---|
| 2094 | return merged;
|
---|
[440] | 2095 | }
|
---|
| 2096 |
|
---|
| 2097 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
| 2098 | {
|
---|
| 2099 | return mVspKdTree->GetRoot() != NULL;
|
---|
| 2100 | }
|
---|
| 2101 |
|
---|
[441] | 2102 |
|
---|
[462] | 2103 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2104 | {
|
---|
| 2105 | return new VspKdViewCell(mesh);
|
---|
| 2106 | }
|
---|
| 2107 |
|
---|
[503] | 2108 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 2109 | const VssRayContainer &rays)
|
---|
[440] | 2110 | {
|
---|
[441] | 2111 | if (!ViewCellsConstructed())
|
---|
| 2112 | return 0;
|
---|
| 2113 |
|
---|
[482] | 2114 | // recalculate stats
|
---|
| 2115 | EvaluateViewCellsStats();
|
---|
| 2116 |
|
---|
[469] | 2117 | return 0;
|
---|
[440] | 2118 | }
|
---|
| 2119 |
|
---|
[482] | 2120 |
|
---|
| 2121 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
| 2122 | const VssRayContainer &sampleRays)
|
---|
[440] | 2123 | {
|
---|
[441] | 2124 | if (!ViewCellsConstructed())
|
---|
| 2125 | return;
|
---|
| 2126 |
|
---|
[482] | 2127 | //-- export leaf building blocks
|
---|
[503] | 2128 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
[482] | 2129 | if (!exporter)
|
---|
| 2130 | return;
|
---|
| 2131 |
|
---|
[598] | 2132 | if (mExportGeometry)
|
---|
| 2133 | exporter->ExportGeometry(objects);
|
---|
| 2134 |
|
---|
[482] | 2135 | //exporter->SetWireframe();
|
---|
| 2136 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
| 2137 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
| 2138 |
|
---|
[503] | 2139 | if (mExportRays)
|
---|
[440] | 2140 | {
|
---|
[503] | 2141 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 2142 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[440] | 2143 |
|
---|
[482] | 2144 | exporter->SetWireframe();
|
---|
[440] | 2145 |
|
---|
[482] | 2146 | //-- collect uniformly distributed rays
|
---|
| 2147 | VssRayContainer rays;
|
---|
[440] | 2148 |
|
---|
[482] | 2149 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 2150 | {
|
---|
| 2151 | if (RandomValue(0,1) < prob)
|
---|
| 2152 | rays.push_back(sampleRays[i]);
|
---|
[440] | 2153 | }
|
---|
[482] | 2154 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[440] | 2155 | }
|
---|
| 2156 |
|
---|
[482] | 2157 | delete exporter;
|
---|
| 2158 | }
|
---|
| 2159 |
|
---|
| 2160 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 2161 | const VssRayContainer &sampleRays)
|
---|
| 2162 | {
|
---|
| 2163 | if (!ViewCellsConstructed())
|
---|
| 2164 | return;
|
---|
[503] | 2165 |
|
---|
[482] | 2166 | //-- export single view cells
|
---|
| 2167 | for (int i = 0; i < 10; ++ i)
|
---|
[440] | 2168 | {
|
---|
[482] | 2169 | char s[64];
|
---|
| 2170 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
| 2171 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2172 | const int idx =
|
---|
[482] | 2173 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
[440] | 2174 |
|
---|
[503] | 2175 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
[482] | 2176 |
|
---|
| 2177 | //-- export geometry
|
---|
| 2178 | Material m;
|
---|
| 2179 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
[503] | 2180 |
|
---|
[482] | 2181 | exporter->SetForcedMaterial(m);
|
---|
| 2182 | exporter->SetWireframe();
|
---|
| 2183 |
|
---|
[580] | 2184 | ExportViewCellGeometry(exporter, vc);
|
---|
[482] | 2185 |
|
---|
| 2186 | //-- export stored rays
|
---|
[580] | 2187 |
|
---|
[485] | 2188 | if (mExportRays)
|
---|
[440] | 2189 | {
|
---|
[580] | 2190 | ViewCellContainer leaves;
|
---|
| 2191 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[440] | 2192 |
|
---|
[580] | 2193 | ViewCellContainer::const_iterator it,
|
---|
| 2194 | it_end = leaves.end();
|
---|
| 2195 |
|
---|
| 2196 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[482] | 2197 | {
|
---|
[580] | 2198 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(*it);
|
---|
| 2199 | VspKdLeaf *leaf = vspKdVc->mLeaf;
|
---|
[482] | 2200 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
[440] | 2201 |
|
---|
[482] | 2202 | VssRayContainer vssRays;
|
---|
[483] | 2203 |
|
---|
| 2204 | VssRayContainer castRays;
|
---|
| 2205 | VssRayContainer initRays;
|
---|
| 2206 |
|
---|
[482] | 2207 | leaf->GetRays(vssRays);
|
---|
[440] | 2208 |
|
---|
[482] | 2209 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
[483] | 2210 | const float prop = 200.0f / (float)vssRays.size();
|
---|
[440] | 2211 |
|
---|
[482] | 2212 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
[483] | 2213 | {
|
---|
[485] | 2214 | if (Random(1) < prop)
|
---|
[483] | 2215 | if ((*it)->mTerminationObject == NULL)
|
---|
| 2216 | castRays.push_back(*it);
|
---|
[503] | 2217 | else
|
---|
[483] | 2218 | initRays.push_back(*it);
|
---|
| 2219 | }
|
---|
| 2220 |
|
---|
| 2221 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
| 2222 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
[482] | 2223 | }
|
---|
| 2224 | }
|
---|
[580] | 2225 |
|
---|
[482] | 2226 | //-- output PVS of view cell
|
---|
| 2227 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2228 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2229 |
|
---|
[483] | 2230 | Intersectable::NewMail();
|
---|
| 2231 |
|
---|
[482] | 2232 | ObjectPvsMap::const_iterator it,
|
---|
| 2233 | it_end = vc->GetPvs().mEntries.end();
|
---|
| 2234 |
|
---|
| 2235 | exporter->SetFilled();
|
---|
| 2236 |
|
---|
[503] | 2237 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[482] | 2238 | {
|
---|
| 2239 | Intersectable *intersect = (*it).first;
|
---|
| 2240 |
|
---|
| 2241 | if (!intersect->Mailed())
|
---|
| 2242 | {
|
---|
| 2243 | Material m = RandomMaterial();
|
---|
| 2244 | exporter->SetForcedMaterial(m);
|
---|
| 2245 |
|
---|
| 2246 | exporter->ExportIntersectable(intersect);
|
---|
| 2247 | intersect->Mail();
|
---|
[503] | 2248 | }
|
---|
[482] | 2249 | }
|
---|
| 2250 |
|
---|
| 2251 | delete exporter;
|
---|
[440] | 2252 | }
|
---|
[462] | 2253 |
|
---|
| 2254 | //-- export final view cells
|
---|
[503] | 2255 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
| 2256 |
|
---|
[485] | 2257 | //if (exportGeometry) exporter->SetWireframe();
|
---|
| 2258 | //else exporter->SetFilled();
|
---|
[483] | 2259 |
|
---|
[508] | 2260 | ExportViewCellsForViz(exporter);
|
---|
[462] | 2261 |
|
---|
[503] | 2262 | if (mExportGeometry)
|
---|
[465] | 2263 | {
|
---|
| 2264 | exporter->SetFilled();
|
---|
[462] | 2265 | exporter->ExportGeometry(objects);
|
---|
[465] | 2266 | }
|
---|
[469] | 2267 |
|
---|
[503] | 2268 | if (mExportRays)
|
---|
[462] | 2269 | {
|
---|
[503] | 2270 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 2271 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[503] | 2272 |
|
---|
[462] | 2273 | exporter->SetWireframe();
|
---|
[503] | 2274 |
|
---|
[466] | 2275 | VssRayContainer rays;
|
---|
[503] | 2276 |
|
---|
[462] | 2277 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 2278 | {
|
---|
[466] | 2279 | if (RandomValue(0,1) < prob)
|
---|
| 2280 | rays.push_back(sampleRays[i]);
|
---|
[462] | 2281 | }
|
---|
[503] | 2282 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[462] | 2283 | }
|
---|
| 2284 |
|
---|
| 2285 | delete exporter;
|
---|
[440] | 2286 | }
|
---|
| 2287 |
|
---|
| 2288 | int VspKdViewCellsManager::GetType() const
|
---|
| 2289 | {
|
---|
| 2290 | return VSP_KD;
|
---|
| 2291 | }
|
---|
[442] | 2292 |
|
---|
[462] | 2293 |
|
---|
[469] | 2294 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2295 | const Vector3 &termination,
|
---|
| 2296 | ViewCellContainer &viewcells)
|
---|
[466] | 2297 | {
|
---|
[469] | 2298 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 2299 | }
|
---|
| 2300 |
|
---|
[477] | 2301 |
|
---|
[482] | 2302 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2303 | ViewCell *vc) const
|
---|
| 2304 | {
|
---|
| 2305 | if (mColorCode == 0) // Random color
|
---|
| 2306 | return;
|
---|
[503] | 2307 |
|
---|
[482] | 2308 | float importance = 0;
|
---|
[477] | 2309 |
|
---|
[482] | 2310 | switch (mColorCode)
|
---|
| 2311 | {
|
---|
| 2312 | case 1: // pvs
|
---|
| 2313 | {
|
---|
[503] | 2314 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[482] | 2315 | (float)mViewCellsStats.maxPvs;
|
---|
| 2316 | }
|
---|
| 2317 | break;
|
---|
[580] | 2318 | case 2: // merged leaves
|
---|
[482] | 2319 | {
|
---|
[580] | 2320 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
| 2321 | importance = (float)lSize /
|
---|
[482] | 2322 | (float)mViewCellsStats.maxLeaves;
|
---|
| 2323 | }
|
---|
| 2324 | break;
|
---|
[485] | 2325 | case 3: // merged tree depth difference
|
---|
[482] | 2326 | {
|
---|
[503] | 2327 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 2328 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2329 | }
|
---|
| 2330 | break;
|
---|
| 2331 | default:
|
---|
| 2332 | break;
|
---|
| 2333 | }
|
---|
| 2334 |
|
---|
| 2335 | Material m;
|
---|
| 2336 | m.mDiffuseColor.b = 1.0f;
|
---|
| 2337 | m.mDiffuseColor.r = importance;
|
---|
| 2338 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2339 | //Debug << "importance: " << importance << endl;
|
---|
| 2340 | exporter->SetForcedMaterial(m);
|
---|
| 2341 | }
|
---|
| 2342 |
|
---|
| 2343 |
|
---|
[580] | 2344 | void VspKdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2345 | ViewCell *vc,
|
---|
| 2346 | const Plane3 *cuttingPlane) const
|
---|
[482] | 2347 | {
|
---|
| 2348 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
| 2349 |
|
---|
[486] | 2350 | Mesh m;
|
---|
[580] | 2351 |
|
---|
| 2352 | ViewCellContainer leaves;
|
---|
| 2353 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2354 |
|
---|
| 2355 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2356 |
|
---|
| 2357 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[486] | 2358 | {
|
---|
[580] | 2359 | VspKdLeaf *l = dynamic_cast<VspKdViewCell *>(*it)->mLeaf;
|
---|
| 2360 | mVspKdTree->GetBBox(l).AddBoxToMesh(&m);
|
---|
[486] | 2361 | }
|
---|
| 2362 |
|
---|
| 2363 | exporter->ExportMesh(&m);
|
---|
[482] | 2364 | }
|
---|
| 2365 |
|
---|
| 2366 |
|
---|
[503] | 2367 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2368 | {
|
---|
[551] | 2369 | //TODO
|
---|
[503] | 2370 | }
|
---|
[442] | 2371 |
|
---|
[574] | 2372 |
|
---|
[584] | 2373 | void VspKdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2374 | vector<MergeCandidate> &candidates)
|
---|
[580] | 2375 | {
|
---|
| 2376 | // TODO
|
---|
| 2377 | }
|
---|
[574] | 2378 |
|
---|
[580] | 2379 |
|
---|
[503] | 2380 | /**************************************************************************/
|
---|
| 2381 | /* VspBspViewCellsManager implementation */
|
---|
| 2382 | /**************************************************************************/
|
---|
[482] | 2383 |
|
---|
[503] | 2384 |
|
---|
[574] | 2385 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 2386 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 2387 | {
|
---|
[574] | 2388 | environment->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 2389 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 2390 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 2391 | }
|
---|
| 2392 |
|
---|
[477] | 2393 |
|
---|
[475] | 2394 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 2395 | {
|
---|
| 2396 | }
|
---|
| 2397 |
|
---|
[477] | 2398 |
|
---|
[471] | 2399 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 2400 | {
|
---|
[551] | 2401 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 2402 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 2403 | else
|
---|
| 2404 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 2405 | }
|
---|
| 2406 |
|
---|
[477] | 2407 |
|
---|
[480] | 2408 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 2409 | {
|
---|
[581] | 2410 | // view cells tree constructed
|
---|
| 2411 | if (!ViewCellsTreeConstructed())
|
---|
| 2412 | {
|
---|
[590] | 2413 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 2414 | }
|
---|
| 2415 | else
|
---|
| 2416 | {
|
---|
| 2417 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 2418 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 2419 | }
|
---|
| 2420 |
|
---|
[480] | 2421 | }
|
---|
| 2422 |
|
---|
| 2423 |
|
---|
[468] | 2424 |
|
---|
[442] | 2425 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2426 | {
|
---|
| 2427 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 2428 | }
|
---|
| 2429 |
|
---|
[462] | 2430 |
|
---|
[442] | 2431 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2432 | {
|
---|
| 2433 | return new BspViewCell(mesh);
|
---|
| 2434 | }
|
---|
| 2435 |
|
---|
[569] | 2436 |
|
---|
[600] | 2437 | /*void VspBspViewCellsManager::CollectNodes(ViewCell *vc, vector<BspNode *>nodes)
|
---|
| 2438 | {
|
---|
| 2439 | void ViewCellsTree::CollectLeaves(ViewCell *vc, vector<BspNode *> &nodes) const
|
---|
| 2440 |
|
---|
| 2441 | if (vc->IsLeaf())
|
---|
| 2442 | {
|
---|
| 2443 | BspViewCell *bvc = dynamic_cast<BspViewCell *>(vc);
|
---|
| 2444 | nodes->push_back(bvc->mLeaf);
|
---|
| 2445 | }
|
---|
| 2446 | else
|
---|
| 2447 | {
|
---|
| 2448 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
| 2449 |
|
---|
| 2450 | for (it = interior->mChildren.begin; it != it_end; ++ it)
|
---|
| 2451 | {
|
---|
| 2452 | vector<BspNode *> mynodes;
|
---|
| 2453 | CollectNodes(*it, mynodes);
|
---|
| 2454 |
|
---|
| 2455 | if (mynodes[0]->GetParent() && (mynodes[0]->GetParent() == mynodes[1]->GetParent()))
|
---|
| 2456 | {
|
---|
| 2457 | nodes.push_back(nodes[0]->GetParent());
|
---|
| 2458 | }
|
---|
| 2459 |
|
---|
| 2460 | }
|
---|
| 2461 | }
|
---|
| 2462 | }*/
|
---|
| 2463 |
|
---|
| 2464 |
|
---|
[574] | 2465 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 2466 | const VssRayContainer &rays)
|
---|
[442] | 2467 | {
|
---|
[503] | 2468 | // if view cells were already constructed
|
---|
| 2469 | if (ViewCellsConstructed())
|
---|
| 2470 | return 0;
|
---|
[442] | 2471 |
|
---|
[503] | 2472 | Debug << "Constructing bsp view cells" << endl;
|
---|
| 2473 |
|
---|
| 2474 | int sampleContributions = 0;
|
---|
| 2475 |
|
---|
| 2476 | VssRayContainer sampleRays;
|
---|
| 2477 |
|
---|
[574] | 2478 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 2479 |
|
---|
[469] | 2480 | VssRayContainer constructionRays;
|
---|
| 2481 | VssRayContainer savedRays;
|
---|
[442] | 2482 |
|
---|
[587] | 2483 | Debug << "samples used for subdivision: " << mInitialSamples
|
---|
| 2484 | << " rays: " << (int)rays.size() << endl;
|
---|
| 2485 |
|
---|
[574] | 2486 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 2487 |
|
---|
[574] | 2488 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 2489 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 2490 |
|
---|
[547] | 2491 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
[564] | 2492 |
|
---|
[542] | 2493 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[503] | 2494 |
|
---|
[480] | 2495 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
[491] | 2496 |
|
---|
[490] | 2497 | // collapse invalid regions
|
---|
[491] | 2498 | cout << "collapsing invalid tree regions ... ";
|
---|
[495] | 2499 | long startTime = GetTime();
|
---|
[503] | 2500 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 2501 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 2502 | << " seconds" << endl;
|
---|
| 2503 |
|
---|
[495] | 2504 | cout << "finished" << endl;
|
---|
[503] | 2505 |
|
---|
[491] | 2506 | cout << "reseting view cell stats ... ";
|
---|
[480] | 2507 | ResetViewCells();
|
---|
[491] | 2508 | cout << "finished" << endl;
|
---|
[503] | 2509 |
|
---|
[480] | 2510 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
[491] | 2511 |
|
---|
[612] | 2512 | if (0) // export initial view cells
|
---|
[491] | 2513 | {
|
---|
| 2514 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
| 2515 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
[503] | 2516 |
|
---|
[491] | 2517 | if (exporter)
|
---|
| 2518 | {
|
---|
[495] | 2519 | if (0 && mExportRays)
|
---|
| 2520 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
[503] | 2521 |
|
---|
[491] | 2522 | if (mExportGeometry)
|
---|
| 2523 | exporter->ExportGeometry(objects);
|
---|
[503] | 2524 |
|
---|
[598] | 2525 | //exporter->SetWireframe();
|
---|
| 2526 | exporter->SetFilled();
|
---|
| 2527 | ExportViewCellsForViz(exporter);
|
---|
| 2528 |
|
---|
[491] | 2529 | delete exporter;
|
---|
| 2530 | }
|
---|
| 2531 | cout << "finished" << endl;
|
---|
| 2532 | }
|
---|
| 2533 |
|
---|
[495] | 2534 | startTime = GetTime();
|
---|
[503] | 2535 |
|
---|
| 2536 | // reset view cells and stats
|
---|
| 2537 | ResetViewCells();
|
---|
| 2538 |
|
---|
[491] | 2539 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 2540 |
|
---|
[469] | 2541 | // recast rest of rays
|
---|
[605] | 2542 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2543 | ComputeSampleContributions(savedRays, true, false);
|
---|
[491] | 2544 | cout << "finished" << endl;
|
---|
| 2545 |
|
---|
[503] | 2546 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 2547 | << " secs" << endl;
|
---|
[442] | 2548 |
|
---|
[485] | 2549 | cout << "construction finished" << endl;
|
---|
[503] | 2550 |
|
---|
[442] | 2551 | return sampleContributions;
|
---|
| 2552 | }
|
---|
| 2553 |
|
---|
[489] | 2554 |
|
---|
[503] | 2555 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 2556 | const ObjectContainer &objects)
|
---|
[475] | 2557 | {
|
---|
[442] | 2558 | //-- post processing of bsp view cells
|
---|
| 2559 | int vcSize = 0;
|
---|
| 2560 | int pvsSize = 0;
|
---|
| 2561 |
|
---|
[480] | 2562 | mRenderer->RenderScene();
|
---|
| 2563 | SimulationStatistics ss;
|
---|
| 2564 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 2565 | Debug << ss << endl;
|
---|
| 2566 |
|
---|
[442] | 2567 | //-- merge or subdivide view cells
|
---|
| 2568 | int merged = 0;
|
---|
[597] | 2569 | if (mMergeViewCells)
|
---|
| 2570 | {
|
---|
| 2571 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 2572 | long startTime = GetTime();
|
---|
[503] | 2573 |
|
---|
[580] | 2574 |
|
---|
[597] | 2575 | // TODO: should be done BEFORE the ray casting
|
---|
| 2576 | merged = mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[442] | 2577 |
|
---|
[597] | 2578 | //-- stats and visualizations
|
---|
| 2579 | cout << "finished merging" << endl;
|
---|
| 2580 | cout << "merged " << merged << " view cells in "
|
---|
| 2581 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[485] | 2582 |
|
---|
[597] | 2583 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
| 2584 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 2585 | }
|
---|
[503] | 2586 |
|
---|
[600] | 2587 | int savedColorCode = mColorCode;
|
---|
| 2588 |
|
---|
[485] | 2589 | //BspLeaf::NewMail();
|
---|
[612] | 2590 | if (0) // export merged view cells
|
---|
[483] | 2591 | {
|
---|
[600] | 2592 | mColorCode = 0;
|
---|
[574] | 2593 | cout << "reseting view cells ... ";
|
---|
| 2594 | ResetViewCells();
|
---|
[587] | 2595 |
|
---|
[574] | 2596 | cout << "finished" << endl;
|
---|
| 2597 |
|
---|
[485] | 2598 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
| 2599 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
[483] | 2600 |
|
---|
[485] | 2601 | cout << "exporting view cells after merge ... ";
|
---|
| 2602 |
|
---|
| 2603 | if (exporter)
|
---|
[483] | 2604 | {
|
---|
[600] | 2605 | if (0)
|
---|
| 2606 | exporter->SetWireframe();
|
---|
| 2607 | else
|
---|
| 2608 | exporter->SetFilled();
|
---|
| 2609 |
|
---|
| 2610 | ExportViewCellsForViz(exporter);
|
---|
| 2611 |
|
---|
[485] | 2612 | if (mExportGeometry)
|
---|
[483] | 2613 | {
|
---|
[485] | 2614 | Material m;
|
---|
| 2615 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2616 | exporter->SetForcedMaterial(m);
|
---|
| 2617 | exporter->SetFilled();
|
---|
[442] | 2618 |
|
---|
[485] | 2619 | exporter->ExportGeometry(objects);
|
---|
[442] | 2620 | }
|
---|
[485] | 2621 |
|
---|
[600] | 2622 | delete exporter;
|
---|
| 2623 | }
|
---|
| 2624 | cout << "finished" << endl;
|
---|
| 2625 | }
|
---|
| 2626 |
|
---|
[612] | 2627 | if (0) // export merged view cells using pvs coding
|
---|
[600] | 2628 | {
|
---|
| 2629 | mColorCode = 1;
|
---|
| 2630 |
|
---|
| 2631 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.x3d");
|
---|
| 2632 |
|
---|
| 2633 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2634 |
|
---|
| 2635 | if (exporter)
|
---|
| 2636 | {
|
---|
[598] | 2637 | if (0)
|
---|
| 2638 | exporter->SetWireframe();
|
---|
| 2639 | else
|
---|
| 2640 | exporter->SetFilled();
|
---|
| 2641 |
|
---|
| 2642 | ExportViewCellsForViz(exporter);
|
---|
| 2643 |
|
---|
[600] | 2644 | if (mExportGeometry)
|
---|
| 2645 | {
|
---|
| 2646 | Material m;
|
---|
| 2647 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2648 | exporter->SetForcedMaterial(m);
|
---|
| 2649 | exporter->SetFilled();
|
---|
| 2650 |
|
---|
| 2651 | exporter->ExportGeometry(objects);
|
---|
| 2652 | }
|
---|
| 2653 |
|
---|
[485] | 2654 | delete exporter;
|
---|
[442] | 2655 | }
|
---|
[485] | 2656 | cout << "finished" << endl;
|
---|
[442] | 2657 | }
|
---|
[600] | 2658 |
|
---|
| 2659 | mColorCode = savedColorCode;
|
---|
| 2660 |
|
---|
[503] | 2661 | }
|
---|
[475] | 2662 |
|
---|
[503] | 2663 |
|
---|
[609] | 2664 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 2665 | {
|
---|
[609] | 2666 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 2667 | }
|
---|
| 2668 |
|
---|
| 2669 |
|
---|
[609] | 2670 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 2671 | {
|
---|
| 2672 | if (!viewCell->IsLeaf())
|
---|
| 2673 | {
|
---|
| 2674 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 2675 |
|
---|
[609] | 2676 | return bspVc->mLeaf;
|
---|
| 2677 | }
|
---|
[607] | 2678 | else
|
---|
| 2679 | {
|
---|
| 2680 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 2681 |
|
---|
| 2682 | // cannot be node of binary tree
|
---|
| 2683 | if (interior->mChildren.size() != 2)
|
---|
[609] | 2684 | return NULL;
|
---|
[607] | 2685 |
|
---|
| 2686 | ViewCell *left = interior->mChildren[0];
|
---|
| 2687 | ViewCell *right = interior->mChildren[1];
|
---|
| 2688 |
|
---|
[609] | 2689 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 2690 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 2691 |
|
---|
[609] | 2692 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 2693 | {
|
---|
[609] | 2694 | return leftNode->GetParent();
|
---|
[607] | 2695 | }
|
---|
[609] | 2696 | }
|
---|
[607] | 2697 |
|
---|
[609] | 2698 | return NULL;
|
---|
[607] | 2699 | }
|
---|
| 2700 |
|
---|
| 2701 |
|
---|
[564] | 2702 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 2703 | const ObjectContainer &objects)
|
---|
[503] | 2704 | {
|
---|
[485] | 2705 | Debug << "render time before refine:" << endl;
|
---|
| 2706 | mRenderer->RenderScene();
|
---|
[503] | 2707 | SimulationStatistics ss;
|
---|
[485] | 2708 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 2709 | Debug << ss << endl;
|
---|
| 2710 |
|
---|
[489] | 2711 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 2712 | long startTime = GetTime();
|
---|
[485] | 2713 |
|
---|
| 2714 | // refining the merged view cells
|
---|
[580] | 2715 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 2716 |
|
---|
[442] | 2717 | //-- stats and visualizations
|
---|
| 2718 | cout << "finished" << endl;
|
---|
[485] | 2719 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 2720 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 2721 |
|
---|
[485] | 2722 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 2723 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 2724 | }
|
---|
[495] | 2725 |
|
---|
[517] | 2726 |
|
---|
[503] | 2727 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 2728 | const VssRayContainer &rays)
|
---|
| 2729 | {
|
---|
| 2730 | if (!ViewCellsConstructed())
|
---|
| 2731 | {
|
---|
[517] | 2732 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 2733 | return 0;
|
---|
| 2734 | }
|
---|
[520] | 2735 |
|
---|
[564] | 2736 |
|
---|
[609] | 2737 | // view cells already finished before post processing step
|
---|
| 2738 | // (i.e. because they were loaded)
|
---|
[520] | 2739 | if (mViewCellsFinished)
|
---|
[542] | 2740 | {
|
---|
[551] | 2741 | FinalizeViewCells(true);
|
---|
[542] | 2742 | EvaluateViewCellsStats();
|
---|
[577] | 2743 |
|
---|
[517] | 2744 | return 0;
|
---|
[542] | 2745 | }
|
---|
[448] | 2746 |
|
---|
[564] | 2747 |
|
---|
[542] | 2748 | // check if new view cells turned invalid
|
---|
[574] | 2749 | SetValidity(mMinPvsSize, mMaxPvsSize);
|
---|
| 2750 | // update valid view space according to valid view cells
|
---|
[544] | 2751 | mVspBspTree->ValidateTree();
|
---|
[542] | 2752 |
|
---|
[574] | 2753 | // recompute view cell statistics
|
---|
| 2754 | mViewCellsStats.Reset();
|
---|
| 2755 | EvaluateViewCellsStats();
|
---|
[580] | 2756 |
|
---|
[574] | 2757 | // has to be recomputed
|
---|
| 2758 | mTotalAreaValid = false;
|
---|
[542] | 2759 |
|
---|
[574] | 2760 |
|
---|
[517] | 2761 | VssRayContainer postProcessRays;
|
---|
| 2762 |
|
---|
[605] | 2763 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2764 |
|
---|
[517] | 2765 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 2766 |
|
---|
[517] | 2767 | Debug << "\nview cell partition after sampling:\n" << mViewCellsStats << endl << endl;
|
---|
| 2768 |
|
---|
[552] | 2769 | // should maybe be done here to allow merge working with area or volume
|
---|
| 2770 | // and to correct the rendering statistics
|
---|
[554] | 2771 | if (0)
|
---|
[551] | 2772 | {
|
---|
| 2773 | FinalizeViewCells(false);
|
---|
| 2774 | }
|
---|
| 2775 |
|
---|
[597] | 2776 | //-- merge the individual view cells
|
---|
| 2777 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 2778 |
|
---|
[580] | 2779 |
|
---|
[597] | 2780 | //-- refines the merged view cells
|
---|
| 2781 | if (0)
|
---|
| 2782 | RefineViewCells(postProcessRays, objects);
|
---|
[568] | 2783 |
|
---|
[600] | 2784 | //-- render simulation after merge
|
---|
[605] | 2785 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 2786 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 2787 | SimulationStatistics ss;
|
---|
| 2788 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 2789 |
|
---|
[580] | 2790 |
|
---|
[605] | 2791 | cout << " finished" << endl;
|
---|
| 2792 | cout << ss << endl;
|
---|
| 2793 | Debug << ss << endl;
|
---|
[600] | 2794 |
|
---|
| 2795 |
|
---|
[605] | 2796 |
|
---|
[600] | 2797 | //-- compression
|
---|
| 2798 |
|
---|
| 2799 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 2800 | {
|
---|
| 2801 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 2802 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 2803 |
|
---|
| 2804 | mViewCellsTree->CompressViewCellsPvs();
|
---|
| 2805 |
|
---|
| 2806 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 2807 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 2808 | }
|
---|
| 2809 |
|
---|
[517] | 2810 | // collapse sibling leaves that share the same view cell
|
---|
[586] | 2811 | if (0)
|
---|
| 2812 | mVspBspTree->CollapseTree();
|
---|
| 2813 |
|
---|
[574] | 2814 | // recompute view cell list and statistics
|
---|
[520] | 2815 | ResetViewCells();
|
---|
| 2816 |
|
---|
[508] | 2817 | // real meshes are only contructed only at this stage
|
---|
[551] | 2818 | FinalizeViewCells(true);
|
---|
[517] | 2819 |
|
---|
[508] | 2820 | // write view cells to disc
|
---|
| 2821 | if (mExportViewCells)
|
---|
| 2822 | {
|
---|
[517] | 2823 | char buff[100];
|
---|
| 2824 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
| 2825 | string vcFilename(buff);
|
---|
| 2826 |
|
---|
| 2827 | ExportViewCells(buff);
|
---|
[508] | 2828 | }
|
---|
[503] | 2829 |
|
---|
| 2830 | return 0;
|
---|
[442] | 2831 | }
|
---|
| 2832 |
|
---|
[490] | 2833 |
|
---|
[442] | 2834 | int VspBspViewCellsManager::GetType() const
|
---|
| 2835 | {
|
---|
| 2836 | return VSP_BSP;
|
---|
| 2837 | }
|
---|
| 2838 |
|
---|
| 2839 |
|
---|
[609] | 2840 | void VspBspViewCellsManager::CreateMergeHierarchy()
|
---|
| 2841 | {
|
---|
[610] | 2842 | TraversalQueue tQueue;
|
---|
| 2843 |
|
---|
| 2844 | tQueue.push(TraversalData(mVspBspTree->GetRoot(), NULL));
|
---|
| 2845 |
|
---|
| 2846 | while (!tQueue.empty())
|
---|
| 2847 | {
|
---|
| 2848 | TraversalData tData = tQueue.top();
|
---|
| 2849 | tQueue.pop();
|
---|
| 2850 |
|
---|
| 2851 | if (tData.mNode->IsLeaf())
|
---|
| 2852 | {
|
---|
| 2853 | ViewCell *viewCell = dynamic_cast<BspLeaf *>(tData.mNode)->GetViewCell();
|
---|
| 2854 |
|
---|
| 2855 | if (tData.mParentViewCell)
|
---|
| 2856 | {
|
---|
| 2857 | tData.mParentViewCell->SetupChildLink(viewCell);
|
---|
| 2858 | // probagate up pvs
|
---|
| 2859 | mViewCellsTree->PropagateUpPvs(viewCell);
|
---|
| 2860 | }
|
---|
| 2861 | }
|
---|
| 2862 | else
|
---|
| 2863 | {
|
---|
| 2864 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
| 2865 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 2866 |
|
---|
| 2867 | tQueue.push(TraversalData(interior->GetBack(), viewCellInterior));
|
---|
| 2868 | tQueue.push(TraversalData(interior->GetFront(), viewCellInterior));
|
---|
| 2869 |
|
---|
| 2870 | if (tData.mParentViewCell)
|
---|
| 2871 | tData.mParentViewCell->SetupChildLink(viewCellInterior);
|
---|
| 2872 | }
|
---|
| 2873 | }
|
---|
[609] | 2874 | }
|
---|
| 2875 |
|
---|
| 2876 |
|
---|
[490] | 2877 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 2878 | {
|
---|
| 2879 | if (!ViewCellsConstructed())
|
---|
| 2880 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 2881 |
|
---|
| 2882 | // TODO: set reasonable limit
|
---|
| 2883 | const int limit = 20;
|
---|
| 2884 |
|
---|
| 2885 | for (int i = 0; i < limit; ++ i)
|
---|
| 2886 | {
|
---|
[542] | 2887 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 2888 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 2889 | {
|
---|
| 2890 | return true;
|
---|
| 2891 | }
|
---|
| 2892 | }
|
---|
| 2893 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 2894 | return false;
|
---|
| 2895 | }
|
---|
| 2896 |
|
---|
| 2897 |
|
---|
| 2898 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 2899 | {
|
---|
[569] | 2900 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 2901 | // validy update in preprocessor for all managers)
|
---|
| 2902 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 2903 |
|
---|
[569] | 2904 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 2905 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 2906 | }
|
---|
| 2907 |
|
---|
| 2908 |
|
---|
[442] | 2909 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2910 | const VssRayContainer &sampleRays)
|
---|
[442] | 2911 | {
|
---|
| 2912 | if (!ViewCellsConstructed())
|
---|
| 2913 | return;
|
---|
| 2914 |
|
---|
[485] | 2915 | VssRayContainer visRays;
|
---|
| 2916 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 2917 |
|
---|
[600] | 2918 |
|
---|
[612] | 2919 | if (0) // export view cells
|
---|
| 2920 | { // hack pvs
|
---|
[600] | 2921 | int savedColorCode = mColorCode;
|
---|
| 2922 | mColorCode = 1;
|
---|
[485] | 2923 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[600] | 2924 |
|
---|
[442] | 2925 | if (exporter)
|
---|
| 2926 | {
|
---|
[580] | 2927 | cout << "exporting view cells after post process ... ";
|
---|
| 2928 |
|
---|
[600] | 2929 | if (0)
|
---|
[542] | 2930 | {
|
---|
| 2931 | exporter->SetWireframe();
|
---|
| 2932 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 2933 | exporter->SetFilled();
|
---|
| 2934 | }
|
---|
| 2935 |
|
---|
[485] | 2936 | if (mExportGeometry)
|
---|
[542] | 2937 | {
|
---|
[485] | 2938 | exporter->ExportGeometry(objects);
|
---|
[542] | 2939 | }
|
---|
[489] | 2940 |
|
---|
| 2941 | // export rays
|
---|
[490] | 2942 | if (mExportRays)
|
---|
[489] | 2943 | {
|
---|
[490] | 2944 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 2945 | }
|
---|
[564] | 2946 |
|
---|
[508] | 2947 | ExportViewCellsForViz(exporter);
|
---|
[442] | 2948 | delete exporter;
|
---|
[580] | 2949 | cout << "finished" << endl;
|
---|
[442] | 2950 | }
|
---|
[600] | 2951 |
|
---|
| 2952 | mColorCode = savedColorCode;
|
---|
[557] | 2953 | }
|
---|
[503] | 2954 |
|
---|
[600] | 2955 | if (0)
|
---|
[577] | 2956 | {
|
---|
| 2957 | cout << "exporting depth map ... ";
|
---|
| 2958 |
|
---|
| 2959 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 2960 | if (exporter)
|
---|
| 2961 | {
|
---|
| 2962 | if (1)
|
---|
| 2963 | {
|
---|
| 2964 | exporter->SetWireframe();
|
---|
| 2965 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 2966 | exporter->SetFilled();
|
---|
| 2967 | }
|
---|
| 2968 |
|
---|
| 2969 | if (mExportGeometry)
|
---|
| 2970 | {
|
---|
| 2971 | exporter->ExportGeometry(objects);
|
---|
| 2972 | }
|
---|
| 2973 |
|
---|
| 2974 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
| 2975 |
|
---|
| 2976 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2977 |
|
---|
| 2978 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 2979 | {
|
---|
[582] | 2980 | ViewCell *vc = *vit;
|
---|
[577] | 2981 |
|
---|
[580] | 2982 | ViewCellContainer leaves;
|
---|
| 2983 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 2984 |
|
---|
[580] | 2985 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2986 |
|
---|
| 2987 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 2988 | {
|
---|
[580] | 2989 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 2990 |
|
---|
| 2991 | Material m;
|
---|
| 2992 |
|
---|
| 2993 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 2994 | m.mDiffuseColor.r = relDepth;
|
---|
| 2995 | m.mDiffuseColor.g = 0.0f;
|
---|
| 2996 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 2997 |
|
---|
| 2998 | exporter->SetForcedMaterial(m);
|
---|
| 2999 |
|
---|
| 3000 |
|
---|
| 3001 | BspNodeGeometry geom;
|
---|
| 3002 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3003 | exporter->ExportPolygons(geom.mPolys);
|
---|
| 3004 | }
|
---|
| 3005 | }
|
---|
| 3006 |
|
---|
| 3007 | delete exporter;
|
---|
| 3008 | }
|
---|
| 3009 |
|
---|
| 3010 |
|
---|
| 3011 | cout << "finished" << endl;
|
---|
| 3012 | }
|
---|
| 3013 |
|
---|
[442] | 3014 | //-- visualization of the BSP splits
|
---|
| 3015 | bool exportSplits = false;
|
---|
[489] | 3016 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3017 |
|
---|
[442] | 3018 | if (exportSplits)
|
---|
| 3019 | {
|
---|
| 3020 | cout << "exporting splits ... ";
|
---|
[485] | 3021 | ExportSplits(objects, visRays);
|
---|
[442] | 3022 | cout << "finished" << endl;
|
---|
| 3023 | }
|
---|
| 3024 |
|
---|
[542] | 3025 | //-- export single view cells
|
---|
[485] | 3026 | ExportBspPvs(objects, visRays);
|
---|
[442] | 3027 | }
|
---|
| 3028 |
|
---|
[503] | 3029 |
|
---|
[485] | 3030 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 3031 | const VssRayContainer &rays)
|
---|
[442] | 3032 | {
|
---|
| 3033 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3034 |
|
---|
[503] | 3035 | if (exporter)
|
---|
| 3036 | {
|
---|
| 3037 | Material m;
|
---|
[442] | 3038 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3039 | exporter->SetForcedMaterial(m);
|
---|
| 3040 | exporter->SetWireframe();
|
---|
[503] | 3041 |
|
---|
[448] | 3042 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 3043 |
|
---|
| 3044 | // take forced material, else big scenes cannot be viewed
|
---|
| 3045 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3046 | exporter->SetForcedMaterial(m);
|
---|
| 3047 | exporter->SetFilled();
|
---|
| 3048 |
|
---|
| 3049 | exporter->ResetForcedMaterial();
|
---|
[503] | 3050 |
|
---|
[442] | 3051 | // export rays
|
---|
[485] | 3052 | if (mExportRays)
|
---|
| 3053 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 3054 |
|
---|
[485] | 3055 | if (mExportGeometry)
|
---|
[442] | 3056 | exporter->ExportGeometry(objects);
|
---|
| 3057 |
|
---|
| 3058 | delete exporter;
|
---|
| 3059 | }
|
---|
| 3060 | }
|
---|
| 3061 |
|
---|
[503] | 3062 |
|
---|
[485] | 3063 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 3064 | const VssRayContainer &rays)
|
---|
[442] | 3065 | {
|
---|
[639] | 3066 | const int leafOut = 20;
|
---|
[503] | 3067 |
|
---|
[442] | 3068 | ViewCell::NewMail();
|
---|
[503] | 3069 |
|
---|
[639] | 3070 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 3071 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 3072 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 3073 |
|
---|
[485] | 3074 | // sort view cells to visualize the largest view cells
|
---|
[587] | 3075 | if (0)
|
---|
| 3076 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
[639] | 3077 |
|
---|
[503] | 3078 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 3079 |
|
---|
[639] | 3080 | int raysOut = 0;
|
---|
[587] | 3081 |
|
---|
[485] | 3082 | //-- some rays for output
|
---|
[478] | 3083 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 3084 | {
|
---|
[478] | 3085 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3086 |
|
---|
[639] | 3087 |
|
---|
[582] | 3088 | ViewCell *vc;
|
---|
[574] | 3089 |
|
---|
| 3090 | if (0) // largest view cell pvs first
|
---|
[582] | 3091 | vc = mViewCells[i];
|
---|
[574] | 3092 | else
|
---|
[639] | 3093 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 3094 |
|
---|
[639] | 3095 | //bspLeaves[j]->Mail();
|
---|
| 3096 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
| 3097 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3098 |
|
---|
| 3099 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 3100 |
|
---|
[639] | 3101 | if (1 || mExportRays)
|
---|
[442] | 3102 | {
|
---|
[643] | 3103 | if (0)
|
---|
[442] | 3104 | {
|
---|
[639] | 3105 | VssRayContainer vcRays;
|
---|
| 3106 | VssRayContainer collectRays;
|
---|
| 3107 |
|
---|
| 3108 | raysOut = min((int)rays.size(), 100);
|
---|
| 3109 |
|
---|
| 3110 | // collect intial view cells
|
---|
| 3111 | ViewCellContainer leaves;
|
---|
| 3112 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3113 |
|
---|
| 3114 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3115 |
|
---|
| 3116 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 3117 | {
|
---|
[639] | 3118 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 3119 |
|
---|
| 3120 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 3121 |
|
---|
[639] | 3122 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 3123 | {
|
---|
| 3124 | collectRays.push_back(*rit);
|
---|
| 3125 | }
|
---|
[574] | 3126 | }
|
---|
[639] | 3127 |
|
---|
| 3128 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3129 |
|
---|
| 3130 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 3131 | {
|
---|
| 3132 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3133 |
|
---|
| 3134 | if (p < raysOut)
|
---|
| 3135 | vcRays.push_back(*rit);
|
---|
| 3136 | }
|
---|
| 3137 | //-- export rays piercing this view cell
|
---|
| 3138 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 3139 | }
|
---|
[639] | 3140 |
|
---|
| 3141 |
|
---|
| 3142 |
|
---|
[643] | 3143 | if (1)
|
---|
[639] | 3144 | {
|
---|
| 3145 | VssRayContainer vcRays;
|
---|
| 3146 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 3147 | // check whether we can add the current ray to the output rays
|
---|
| 3148 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 3149 | {
|
---|
| 3150 | VssRay *ray = rays[k];
|
---|
| 3151 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 3152 | {
|
---|
| 3153 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 3154 |
|
---|
| 3155 | if (rayvc == vc)
|
---|
| 3156 | vcRays.push_back(ray);
|
---|
| 3157 | }
|
---|
| 3158 | }
|
---|
| 3159 |
|
---|
| 3160 | //-- export rays piercing this view cell
|
---|
| 3161 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 3162 | }
|
---|
| 3163 |
|
---|
[442] | 3164 | }
|
---|
[639] | 3165 |
|
---|
| 3166 |
|
---|
[574] | 3167 |
|
---|
[639] | 3168 |
|
---|
[478] | 3169 | exporter->SetWireframe();
|
---|
[442] | 3170 |
|
---|
[478] | 3171 | Material m;//= RandomMaterial();
|
---|
| 3172 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3173 | exporter->SetForcedMaterial(m);
|
---|
[442] | 3174 |
|
---|
[580] | 3175 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 3176 |
|
---|
| 3177 | exporter->SetFilled();
|
---|
[503] | 3178 |
|
---|
[639] | 3179 |
|
---|
[574] | 3180 | if (1)
|
---|
| 3181 | {
|
---|
[639] | 3182 | ObjectPvsMap::const_iterator oit,
|
---|
| 3183 | oit_end = vc->GetPvs().mEntries.end();
|
---|
[483] | 3184 |
|
---|
[580] | 3185 |
|
---|
[639] | 3186 | exporter->SetFilled();
|
---|
[580] | 3187 |
|
---|
[639] | 3188 | Intersectable::NewMail();
|
---|
[574] | 3189 |
|
---|
[639] | 3190 | // output PVS of view cell
|
---|
| 3191 | for (oit = vc->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 3192 | {
|
---|
| 3193 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 3194 |
|
---|
[639] | 3195 | if (!intersect->Mailed())
|
---|
| 3196 | {
|
---|
[643] | 3197 | m = RandomMaterial();
|
---|
| 3198 | exporter->SetForcedMaterial(m);
|
---|
[442] | 3199 |
|
---|
[639] | 3200 | exporter->ExportIntersectable(intersect);
|
---|
| 3201 | intersect->Mail();
|
---|
| 3202 | }
|
---|
[503] | 3203 | }
|
---|
[442] | 3204 | }
|
---|
[639] | 3205 | else
|
---|
| 3206 | {
|
---|
[643] | 3207 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3208 | exporter->SetForcedMaterial(m);
|
---|
| 3209 |
|
---|
[639] | 3210 | exporter->ExportGeometry(objects);
|
---|
| 3211 | }
|
---|
[503] | 3212 |
|
---|
[478] | 3213 | DEL_PTR(exporter);
|
---|
| 3214 | cout << "finished" << endl;
|
---|
[442] | 3215 | }
|
---|
[475] | 3216 |
|
---|
| 3217 | Debug << endl;
|
---|
[442] | 3218 | }
|
---|
| 3219 |
|
---|
| 3220 |
|
---|
[469] | 3221 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3222 | const Vector3 &termination,
|
---|
| 3223 | ViewCellContainer &viewcells)
|
---|
[466] | 3224 | {
|
---|
[469] | 3225 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3226 | }
|
---|
[482] | 3227 |
|
---|
| 3228 |
|
---|
[503] | 3229 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 3230 | ViewCell *vc) const
|
---|
| 3231 | {
|
---|
[564] | 3232 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[503] | 3233 |
|
---|
[482] | 3234 | float importance = 0;
|
---|
[564] | 3235 | static Material m;
|
---|
| 3236 |
|
---|
[482] | 3237 | switch (mColorCode)
|
---|
| 3238 | {
|
---|
[564] | 3239 | case 0: // Random
|
---|
| 3240 | {
|
---|
| 3241 | if (vcValid)
|
---|
| 3242 | {
|
---|
[598] | 3243 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 3244 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 3245 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
[564] | 3246 | }
|
---|
| 3247 | else
|
---|
| 3248 | {
|
---|
| 3249 | m.mDiffuseColor.r = 0.0f;
|
---|
| 3250 | m.mDiffuseColor.g = 1.0f;
|
---|
| 3251 | m.mDiffuseColor.b = 0.0f;
|
---|
| 3252 | }
|
---|
[591] | 3253 |
|
---|
| 3254 | exporter->SetForcedMaterial(m);
|
---|
| 3255 | return;
|
---|
[564] | 3256 | }
|
---|
[591] | 3257 |
|
---|
[482] | 3258 | case 1: // pvs
|
---|
| 3259 | {
|
---|
[503] | 3260 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[482] | 3261 | (float)mViewCellsStats.maxPvs;
|
---|
[570] | 3262 |
|
---|
[482] | 3263 | }
|
---|
| 3264 | break;
|
---|
| 3265 | case 2: // merges
|
---|
| 3266 | {
|
---|
[580] | 3267 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
| 3268 | importance = (float)lSize / (float)mViewCellsStats.maxLeaves;
|
---|
[482] | 3269 | }
|
---|
| 3270 | break;
|
---|
| 3271 | case 3: // merge tree differene
|
---|
| 3272 | {
|
---|
[503] | 3273 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 3274 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
[547] | 3275 |
|
---|
[482] | 3276 | }
|
---|
| 3277 | break;
|
---|
| 3278 | default:
|
---|
| 3279 | break;
|
---|
| 3280 | }
|
---|
| 3281 |
|
---|
[564] | 3282 | // special color code for invalid view cells
|
---|
[482] | 3283 | m.mDiffuseColor.r = importance;
|
---|
| 3284 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[564] | 3285 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[547] | 3286 |
|
---|
[482] | 3287 | //Debug << "importance: " << importance << endl;
|
---|
| 3288 | exporter->SetForcedMaterial(m);
|
---|
| 3289 | }
|
---|
| 3290 |
|
---|
| 3291 |
|
---|
[580] | 3292 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3293 | ViewCell *vc,
|
---|
| 3294 | const Plane3 *cuttingPlane) const
|
---|
[482] | 3295 | {
|
---|
[542] | 3296 | if (vc->GetMesh())
|
---|
[503] | 3297 | {
|
---|
| 3298 | exporter->ExportMesh(vc->GetMesh());
|
---|
[590] | 3299 |
|
---|
[503] | 3300 | return;
|
---|
| 3301 | }
|
---|
| 3302 |
|
---|
[591] | 3303 |
|
---|
| 3304 | if (cuttingPlane)
|
---|
| 3305 | {
|
---|
| 3306 | ViewCellContainer leaves;
|
---|
| 3307 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3308 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3309 |
|
---|
| 3310 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3311 | {
|
---|
| 3312 | BspNodeGeometry geom;
|
---|
| 3313 |
|
---|
| 3314 | BspNodeGeometry front;
|
---|
| 3315 | BspNodeGeometry back;
|
---|
| 3316 |
|
---|
| 3317 |
|
---|
| 3318 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 3319 |
|
---|
| 3320 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3321 |
|
---|
| 3322 | geom.SplitGeometry(front,
|
---|
| 3323 | back,
|
---|
| 3324 | *cuttingPlane,
|
---|
| 3325 | mViewSpaceBox,
|
---|
[600] | 3326 | 0.0001f);
|
---|
[591] | 3327 |
|
---|
[600] | 3328 | if ((int)back.mPolys.size() >= 3)
|
---|
| 3329 | exporter->ExportPolygons(back.mPolys);
|
---|
[591] | 3330 | }
|
---|
| 3331 | }
|
---|
| 3332 | else
|
---|
| 3333 | {
|
---|
| 3334 | BspNodeGeometry geom;
|
---|
| 3335 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 3336 |
|
---|
| 3337 | exporter->ExportPolygons(geom.mPolys);
|
---|
| 3338 | }
|
---|
[482] | 3339 | }
|
---|
| 3340 |
|
---|
| 3341 |
|
---|
| 3342 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 3343 | {
|
---|
[580] | 3344 | ViewCellContainer leaves;
|
---|
| 3345 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 3346 |
|
---|
| 3347 | int maxDist = 0;
|
---|
[580] | 3348 |
|
---|
[482] | 3349 | // compute max height difference
|
---|
[580] | 3350 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
| 3351 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[482] | 3352 | {
|
---|
[580] | 3353 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 3354 |
|
---|
| 3355 | if (i != j)
|
---|
| 3356 | {
|
---|
[580] | 3357 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
[482] | 3358 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 3359 | if (dist > maxDist)
|
---|
| 3360 | maxDist = dist;
|
---|
| 3361 | }
|
---|
| 3362 | }
|
---|
[580] | 3363 |
|
---|
[492] | 3364 | return maxDist;
|
---|
| 3365 | }
|
---|
[482] | 3366 |
|
---|
[492] | 3367 |
|
---|
[569] | 3368 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
[492] | 3369 | {
|
---|
[508] | 3370 | if (!mVspBspTree)
|
---|
| 3371 | return NULL;
|
---|
[572] | 3372 |
|
---|
| 3373 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 3374 | return NULL;
|
---|
| 3375 |
|
---|
[508] | 3376 | return mVspBspTree->GetViewCell(point);
|
---|
[492] | 3377 | }
|
---|
[503] | 3378 |
|
---|
| 3379 |
|
---|
| 3380 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3381 | {
|
---|
[577] | 3382 | if (vc->GetMesh())
|
---|
| 3383 | delete vc->GetMesh();
|
---|
| 3384 |
|
---|
[590] | 3385 |
|
---|
[503] | 3386 | BspNodeGeometry geom;
|
---|
[590] | 3387 |
|
---|
| 3388 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 3389 |
|
---|
[503] | 3390 | Mesh *mesh = new Mesh();
|
---|
| 3391 | geom.AddToMesh(*mesh);
|
---|
| 3392 | vc->SetMesh(mesh);
|
---|
| 3393 | mMeshContainer.push_back(mesh);
|
---|
| 3394 | }
|
---|
[508] | 3395 |
|
---|
| 3396 |
|
---|
[577] | 3397 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string filename,
|
---|
| 3398 | ObjectContainer *objects)
|
---|
[508] | 3399 | {
|
---|
| 3400 | ViewCellsParser parser;
|
---|
[564] | 3401 |
|
---|
[577] | 3402 | ViewCellsManager *vm = NULL;
|
---|
[564] | 3403 |
|
---|
[577] | 3404 | if (parser.ParseFile(filename, &vm, objects))
|
---|
| 3405 | {
|
---|
[590] | 3406 | //vm->PrepareLoadedViewCells();
|
---|
[577] | 3407 | vm->ResetViewCells();
|
---|
[564] | 3408 |
|
---|
[577] | 3409 | vm->mViewCellsFinished = true;
|
---|
| 3410 | vm->mMaxPvsSize = (int)objects->size();
|
---|
[517] | 3411 |
|
---|
[577] | 3412 | vm->FinalizeViewCells(true);
|
---|
[564] | 3413 |
|
---|
[577] | 3414 | Debug << (int)vm->mViewCells.size() << " view cells loaded" << endl;
|
---|
| 3415 | }
|
---|
| 3416 | else
|
---|
| 3417 | {
|
---|
| 3418 | Debug << "failed loading view cells" << endl;
|
---|
| 3419 | DEL_PTR(vm);
|
---|
| 3420 | }
|
---|
| 3421 |
|
---|
| 3422 |
|
---|
| 3423 | return vm;
|
---|
[508] | 3424 | }
|
---|
| 3425 |
|
---|
| 3426 |
|
---|
| 3427 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
| 3428 | {
|
---|
| 3429 | return obj1->mId < obj2->mId;
|
---|
| 3430 | }
|
---|
| 3431 |
|
---|
| 3432 |
|
---|
| 3433 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
| 3434 | {
|
---|
[564] | 3435 | cout << "exporting view cells to xml ... ";
|
---|
[508] | 3436 | std::ofstream stream;
|
---|
| 3437 |
|
---|
[577] | 3438 | // for output we need unique ids for each view cell
|
---|
[590] | 3439 | CreateUniqueViewCellIds();
|
---|
[508] | 3440 |
|
---|
[590] | 3441 |
|
---|
[508] | 3442 | stream.open(filename.c_str());
|
---|
| 3443 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 3444 | stream << "<Visibility_Solution>" << endl;
|
---|
[564] | 3445 |
|
---|
[577] | 3446 | //-- the view space bounding box
|
---|
| 3447 | stream << "<ViewSpaceBox"
|
---|
| 3448 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3449 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 3450 |
|
---|
| 3451 | //-- the type of the view cells hierarchy
|
---|
| 3452 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl;
|
---|
| 3453 |
|
---|
[508] | 3454 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 3455 | stream << "<ViewCells>" << endl;
|
---|
[610] | 3456 |
|
---|
| 3457 | #if 0
|
---|
| 3458 |
|
---|
[508] | 3459 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[610] | 3460 |
|
---|
[508] | 3461 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 3462 | ExportViewCell(*it, stream);
|
---|
[610] | 3463 | #else
|
---|
| 3464 | mViewCellsTree->Export(stream);
|
---|
| 3465 | #endif
|
---|
[564] | 3466 |
|
---|
[508] | 3467 | stream << "</ViewCells>" << endl;
|
---|
[564] | 3468 |
|
---|
[508] | 3469 | //-- load the hierarchy
|
---|
[590] | 3470 | stream << "<Hierarchy>" << endl;
|
---|
[508] | 3471 | mVspBspTree->Export(stream);
|
---|
[590] | 3472 | stream << endl << "</Hierarchy>" << endl;
|
---|
[564] | 3473 |
|
---|
[508] | 3474 | stream << "</Visibility_Solution>" << endl;
|
---|
| 3475 | stream.close();
|
---|
| 3476 |
|
---|
| 3477 | cout << "finished" << endl;
|
---|
| 3478 |
|
---|
| 3479 | return true;
|
---|
[532] | 3480 | }
|
---|
| 3481 |
|
---|
| 3482 |
|
---|
| 3483 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 3484 | {
|
---|
[535] | 3485 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 3486 | }
|
---|
[551] | 3487 |
|
---|
| 3488 |
|
---|
[587] | 3489 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3490 | const bool createMesh)
|
---|
[551] | 3491 | {
|
---|
[582] | 3492 | CreateMesh(viewCell);
|
---|
[551] | 3493 |
|
---|
| 3494 | float area = 0;
|
---|
| 3495 | float volume = 0;
|
---|
| 3496 |
|
---|
[580] | 3497 | ViewCellContainer leaves;
|
---|
[582] | 3498 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 3499 |
|
---|
| 3500 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3501 |
|
---|
| 3502 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 3503 | {
|
---|
| 3504 | BspNodeGeometry geom;
|
---|
[580] | 3505 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 3506 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 3507 |
|
---|
| 3508 | area += geom.GetArea();
|
---|
| 3509 | volume += geom.GetVolume();
|
---|
| 3510 | }
|
---|
| 3511 |
|
---|
| 3512 | viewCell->SetVolume(volume);
|
---|
| 3513 | viewCell->SetArea(area);
|
---|
[563] | 3514 | }
|
---|
[575] | 3515 |
|
---|
| 3516 |
|
---|
[577] | 3517 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 3518 | {
|
---|
| 3519 | // TODO: do I still need this here?
|
---|
[590] | 3520 | if (0)
|
---|
[577] | 3521 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
| 3522 | }
|
---|
[575] | 3523 |
|
---|
[577] | 3524 |
|
---|
[580] | 3525 |
|
---|
| 3526 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3527 | vector<MergeCandidate> &candidates)
|
---|
| 3528 | {
|
---|
| 3529 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3530 |
|
---|
| 3531 | if (mUseRaysForMerge)
|
---|
| 3532 | {
|
---|
| 3533 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3534 | }
|
---|
| 3535 | else
|
---|
| 3536 | {
|
---|
| 3537 | vector<BspLeaf *> leaves;
|
---|
| 3538 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3539 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3540 | }
|
---|
| 3541 |
|
---|
| 3542 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3543 | }
|
---|
| 3544 |
|
---|
| 3545 |
|
---|
[590] | 3546 | void VspBspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
| 3547 | {
|
---|
| 3548 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 3549 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 3550 | {
|
---|
| 3551 | }
|
---|
| 3552 | }
|
---|
[580] | 3553 |
|
---|
| 3554 | //////////////////////////////////
|
---|
[575] | 3555 | ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
| 3556 | {
|
---|
| 3557 | //TODO
|
---|
| 3558 | return NULL;// new VspBspViewCellsManager();
|
---|
| 3559 | }
|
---|
[580] | 3560 |
|
---|