[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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[1233] | 10 | #include "HierarchyManager.h"
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[440] | 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[931] | 17 | #include "BoundingBoxConverter.h"
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[979] | 18 | #include "GlRenderer.h"
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[1001] | 19 | #include "ResourceManager.h"
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[1315] | 20 | #include "IntersectableWrapper.h"
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[1233] | 21 | #include "VspTree.h"
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| 22 | #include "OspTree.h"
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[1259] | 23 | #include "BvHierarchy.h"
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[1520] | 24 | #include "SamplingStrategy.h"
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[1545] | 25 | #include "SceneGraph.h"
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[440] | 26 |
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[1278] | 27 |
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[1715] | 28 | #define ABS_CONTRIBUTION_WEIGHT 1.0f
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| 29 |
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[1667] | 30 | // warning: Should not count origin object for sampling because it disturbs heuristics
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[1715] | 31 | #define SAMPLE_ORIGIN_OBJECTS 0 // matt temp
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[931] | 32 |
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[1594] | 33 | // $$JB HACK
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[1627] | 34 | #define USE_KD_PVS 0
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[1694] | 35 | #define KD_PVS_AREA (5*1e-4f)
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[1486] | 36 |
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[1703] | 37 |
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| 38 |
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[863] | 39 | namespace GtpVisibilityPreprocessor {
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[860] | 40 |
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| 41 |
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[712] | 42 | // HACK
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| 43 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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[1705] | 44 | //const static bool CLAMP_TO_BOX = false;
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| 45 | const static bool CLAMP_TO_BOX = true;
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[517] | 46 |
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[1705] | 47 |
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[1703] | 48 | int ViewCellsManager::sRenderCostEvaluationType = 0;
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| 49 |
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| 50 |
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[697] | 51 | template <typename T> class myless
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| 52 | {
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| 53 | public:
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| 54 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 55 | bool operator() (T v1, T v2) const
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| 56 | {
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| 57 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 58 | }
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| 59 | };
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| 60 |
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| 61 |
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[1264] | 62 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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[480] | 63 | mRenderer(NULL),
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[574] | 64 | mInitialSamples(0),
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[440] | 65 | mConstructionSamples(0),
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| 66 | mPostProcessSamples(0),
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[470] | 67 | mVisualizationSamples(0),
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| 68 | mTotalAreaValid(false),
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[517] | 69 | mTotalArea(0.0f),
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[547] | 70 | mViewCellsFinished(false),
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[562] | 71 | mMaxPvsSize(9999999),
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[1686] | 72 | mMinPvsSize(0),
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[719] | 73 | mMaxPvsRatio(1.0),
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[1145] | 74 | mViewCellPvsIsUpdated(false),
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[1264] | 75 | mPreprocessor(NULL),
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[1545] | 76 | mViewCellsTree(viewCellsTree),
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| 77 | mUsePredefinedViewCells(false)
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[440] | 78 | {
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[542] | 79 | mViewSpaceBox.Initialize();
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[482] | 80 | ParseEnvironment();
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[580] | 81 |
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[1264] | 82 | mViewCellsTree->SetViewCellsManager(this);
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[440] | 83 | }
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| 84 |
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[517] | 85 |
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[482] | 86 | void ViewCellsManager::ParseEnvironment()
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| 87 | {
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[503] | 88 | // visualization stuff
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[1004] | 89 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 90 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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| 91 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 92 |
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[1004] | 93 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 94 |
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[1004] | 95 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 96 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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[595] | 98 |
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[1004] | 99 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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[574] | 100 |
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[1004] | 101 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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| 102 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 103 |
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[1004] | 104 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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| 105 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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| 106 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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| 107 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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| 108 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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| 109 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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| 110 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 111 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[1703] | 112 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", sRenderCostEvaluationType);
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[710] | 113 |
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[1004] | 114 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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| 115 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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[1142] | 116 |
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[664] | 117 | char buf[100];
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[1004] | 118 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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[664] | 119 |
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[660] | 120 |
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[1020] | 121 | // sampling type for view cells construction samples
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[1695] | 122 | if (strcmp(buf, "object") == 0)
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[722] | 123 | {
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[1695] | 124 | mSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 125 | }
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| 126 | else if (strcmp(buf, "box") == 0)
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| 127 | {
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[1520] | 128 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 129 | }
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[664] | 130 | else if (strcmp(buf, "directional") == 0)
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[722] | 131 | {
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[1520] | 132 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 133 | }
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[1020] | 134 | else if (strcmp(buf, "object_directional") == 0)
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| 135 | {
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[1520] | 136 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 137 | }
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[1695] | 138 | else if (strcmp(buf, "reverse_object") == 0)
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| 139 | {
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| 140 | mSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 141 | }
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[1022] | 142 | /*else if (strcmp(buf, "interior") == 0)
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| 143 | {
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| 144 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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| 145 | }*/
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[1020] | 146 | else
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| 147 | {
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[666] | 148 | Debug << "error! wrong sampling type" << endl;
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| 149 | exit(0);
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| 150 | }
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[660] | 151 |
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[1020] | 152 | // sampling type for evaluation samples
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[1004] | 153 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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[722] | 154 |
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[1695] | 155 | if (strcmp(buf, "object") == 0)
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[722] | 156 | {
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[1695] | 157 | mEvaluationSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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| 158 | }
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| 159 | else if (strcmp(buf, "box") == 0)
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| 160 | {
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[1520] | 161 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 162 | }
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| 163 | else if (strcmp(buf, "directional") == 0)
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| 164 | {
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[1520] | 165 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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[722] | 166 | }
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[1020] | 167 | else if (strcmp(buf, "object_directional") == 0)
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[722] | 168 | {
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[1520] | 169 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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[1020] | 170 | }
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[1695] | 171 | else if (strcmp(buf, "reverse_object") == 0)
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| 172 | {
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| 173 | mEvaluationSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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| 174 | }
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[1022] | 175 | /*else if (strcmp(buf, "interior") == 0)
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[1020] | 176 | {
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[1520] | 177 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
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[1022] | 178 | }*/
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[1020] | 179 | else
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| 180 | {
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[1695] | 181 | mEvaluationSamplingType = -1;
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[722] | 182 | Debug << "error! wrong sampling type" << endl;
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| 183 | exit(0);
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| 184 | }
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[503] | 185 |
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[1004] | 186 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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[728] | 187 |
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[734] | 188 | if (strcmp(buf, "perobject") == 0)
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[728] | 189 | {
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[1703] | 190 | sRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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[728] | 191 | }
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[1703] | 192 | else if (strcmp(buf, "pertriangle") == 0)
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[728] | 193 | {
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[1703] | 194 | sRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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[728] | 195 | }
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| 196 | else
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| 197 | {
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| 198 | Debug << "error! wrong sampling type" << endl;
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| 199 | exit(0);
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| 200 | }
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| 201 |
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[1004] | 202 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[722] | 203 |
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[482] | 204 | if (strcmp(buf, "PVS") == 0)
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| 205 | mColorCode = 1;
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| 206 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 207 | mColorCode = 2;
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| 208 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 209 | mColorCode = 3;
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| 210 | else
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| 211 | mColorCode = 0;
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| 212 |
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[664] | 213 |
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[1418] | 214 | Debug << "************ View Cells Manager options ***************" << endl;
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[664] | 215 | Debug << "color code: " << mColorCode << endl;
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| 216 |
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| 217 | Debug << "export rays: " << mExportRays << endl;
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| 218 | Debug << "export geometry: " << mExportGeometry << endl;
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| 219 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 220 |
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| 221 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 222 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 223 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 224 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 225 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 226 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 227 | Debug << "export to file: " << mExportViewCells << endl;
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| 228 |
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[801] | 229 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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[664] | 230 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 231 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 232 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 233 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 234 | Debug << "sampling type: " << mSamplingType << endl;
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[1703] | 235 | Debug << "render cost evaluation type: " << sRenderCostEvaluationType << endl;
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[728] | 236 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 237 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 238 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 239 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[850] | 240 |
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| 241 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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| 242 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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[664] | 243 | Debug << endl;
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[440] | 244 | }
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| 245 |
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[485] | 246 |
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[440] | 247 | ViewCellsManager::~ViewCellsManager()
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| 248 | {
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[1020] | 249 | // HACK: if view cells tree does not
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[1264] | 250 | // handle view cells, we have to do it here
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[1020] | 251 | // question: rather create view cells resource manager?
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[598] | 252 | if (!ViewCellsTreeConstructed())
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[1141] | 253 | {
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[598] | 254 | CLEAR_CONTAINER(mViewCells);
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[1141] | 255 | }
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[1696] | 256 | else
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| 257 | {
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| 258 | DEL_PTR(mViewCellsTree);
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| 259 | }
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[440] | 260 | }
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| 261 |
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[1221] | 262 |
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[1613] | 263 |
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[1221] | 264 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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[859] | 265 | {
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| 266 | Mesh *m = vc->GetMesh();
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| 267 |
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[1563] | 268 | if (m)
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| 269 | {
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| 270 | m->ComputeBoundingBox();
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| 271 | return m->mBox;
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[859] | 272 | }
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[485] | 273 |
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[859] | 274 | AxisAlignedBox3 box;
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| 275 | box.Initialize();
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| 276 |
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| 277 | if (!vc->IsLeaf()) {
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| 278 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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| 279 |
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| 280 | ViewCellContainer::iterator it = vci->mChildren.begin();
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| 281 | for (; it != vci->mChildren.end(); ++it) {
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| 282 | box.Include(GetViewCellBox(*it));
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| 283 | }
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| 284 | }
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| 285 |
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| 286 | return box;
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| 287 | }
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| 288 |
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[693] | 289 |
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[574] | 290 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 291 | const int sampleType,
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| 292 | VssRayContainer &passSamples) const
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[527] | 293 | {
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[570] | 294 | SimpleRayContainer simpleRays;
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[1633] | 295 | long startTime = GetTime();
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[564] | 296 |
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[1701] | 297 | // create one third of each type
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| 298 | int stype;
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| 299 |
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[1709] | 300 | const int numStrategies = 3;
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| 301 |
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[1701] | 302 | stype = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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[1709] | 303 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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[1701] | 304 |
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| 305 | stype = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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[1709] | 306 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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[1701] | 307 |
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[1709] | 308 | if (0)
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| 309 | {
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| 310 | stype = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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| 311 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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| 312 | }
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[1701] | 313 |
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[1708] | 314 | stype = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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[1709] | 315 | mPreprocessor->GenerateRays(samplesPerPass / numStrategies, sampleType, simpleRays);
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[1708] | 316 |
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[1633] | 317 | cout << "generated " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[1221] | 318 |
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[1633] | 319 | startTime = GetTime();
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[573] | 320 | // shoot simple ray and add it to importance samples
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[1520] | 321 | mPreprocessor->CastRays(simpleRays, passSamples, true);
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[1633] | 322 | cout << "cast " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[570] | 323 |
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[574] | 324 | return (int)passSamples.size();
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| 325 | }
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[570] | 326 |
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[574] | 327 |
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| 328 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 329 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 330 | {
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| 331 | cout << "disposing samples ... ";
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[582] | 332 | long startTime = GetTime();
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| 333 | int n = (int)rays.size();
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| 334 |
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[573] | 335 | if (outRays)
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[542] | 336 | {
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[574] | 337 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 338 | for (it = rays.begin(); it != it_end; ++ it)
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| 339 | {
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| 340 | outRays->push_back(*it);
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| 341 | }
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[573] | 342 | }
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| 343 | else
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| 344 | {
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[639] | 345 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 346 | for (it = rays.begin(); it != it_end; ++ it)
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| 347 | {
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| 348 | if (!(*it)->IsActive())
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| 349 | delete (*it);
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| 350 | }
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[573] | 351 | }
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[639] | 352 |
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[574] | 353 | cout << "finished" << endl;
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[582] | 354 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 355 | }
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[570] | 356 |
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| 357 |
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[573] | 358 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 359 | {
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| 360 | int numSamples = 0;
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[1077] | 361 |
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[573] | 362 | SimpleRayContainer simpleRays;
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[574] | 363 | VssRayContainer initialSamples;
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[540] | 364 |
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[1381] | 365 | // store pointer to preprocessor for further use during construction
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| 366 | mPreprocessor = preprocessor;
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| 367 |
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[1563] | 368 |
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[1381] | 369 | ///////////////////////////////////////////////////////
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| 370 | //-- Initial sampling for the construction of the view cell hierarchy.
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| 371 | //-- We use uniform sampling / box based sampling.
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| 372 |
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[752] | 373 | long startTime = GetTime();
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[1633] | 374 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
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[1414] | 375 |
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[1381] | 376 | // cast initial samples
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| 377 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
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[1278] | 378 |
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[1221] | 379 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 380 |
|
---|
[573] | 381 | // construct view cells
|
---|
[752] | 382 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 383 |
|
---|
[727] | 384 | // initial samples count for overall samples ...
|
---|
[752] | 385 | numSamples += mInitialSamples;
|
---|
[542] | 386 |
|
---|
[574] | 387 | // rays can be passed or deleted
|
---|
[639] | 388 | disposeRays(initialSamples, outRays);
|
---|
[752] | 389 |
|
---|
| 390 | cout << "time needed for initial construction: "
|
---|
| 391 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 392 |
|
---|
| 393 | Debug << "time needed for initial construction: "
|
---|
| 394 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 395 |
|
---|
[1444] | 396 | // collect view cells and compute statistics
|
---|
| 397 | ResetViewCells();
|
---|
[752] | 398 |
|
---|
[1444] | 399 |
|
---|
| 400 | ///////////////////
|
---|
| 401 | //-- Initial hierarchy construction finished.
|
---|
[1381] | 402 | //-- We can do some stats and visualization
|
---|
| 403 |
|
---|
[1444] | 404 | if (0)
|
---|
[660] | 405 | {
|
---|
[1444] | 406 | //-- export initial view cell partition
|
---|
[1563] | 407 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
[1416] | 408 |
|
---|
[1414] | 409 | const string filename("viewcells.wrl");
|
---|
| 410 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
[712] | 411 |
|
---|
[660] | 412 | if (exporter)
|
---|
| 413 | {
|
---|
[1414] | 414 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
| 415 |
|
---|
[660] | 416 | if (mExportGeometry)
|
---|
[712] | 417 | {
|
---|
[660] | 418 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 419 | }
|
---|
[660] | 420 |
|
---|
[750] | 421 | exporter->SetWireframe();
|
---|
[1416] | 422 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[660] | 423 |
|
---|
| 424 | delete exporter;
|
---|
[712] | 425 | cout << "finished" << endl;
|
---|
[660] | 426 | }
|
---|
| 427 | }
|
---|
| 428 |
|
---|
[1381] | 429 |
|
---|
[1419] | 430 | //////////////////////
|
---|
[1381] | 431 | //-- Cast some more sampling after initial construction.
|
---|
| 432 | //-- The additional rays can be used to gain
|
---|
| 433 | //-- some more information before the bottom-up merge
|
---|
| 434 | //-- note: guided rays could be used for this task
|
---|
| 435 |
|
---|
[1414] | 436 | // time spent after construction of the initial partition
|
---|
[1381] | 437 | startTime = GetTime();
|
---|
[574] | 438 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[666] | 439 | // should we use directional samples?
|
---|
[1520] | 440 | bool dirSamples = (mSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 441 |
|
---|
| 442 | while (numSamples < n)
|
---|
| 443 | {
|
---|
[596] | 444 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 445 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 446 |
|
---|
[574] | 447 | VssRayContainer constructionSamples;
|
---|
| 448 |
|
---|
[694] | 449 | const int samplingType = mSamplingType;
|
---|
[1444] | 450 | //dirSamples ? Preprocessor::DIRECTION_BASED_DISTRIBUTION : Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[667] | 451 |
|
---|
[720] | 452 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 453 |
|
---|
[727] | 454 | // cast new samples
|
---|
[574] | 455 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 456 | samplingType,
|
---|
[574] | 457 | constructionSamples);
|
---|
| 458 |
|
---|
| 459 | cout << "finished" << endl;
|
---|
| 460 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 461 |
|
---|
[727] | 462 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 463 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 464 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 465 |
|
---|
[574] | 466 | cout << "finished" << endl;
|
---|
| 467 |
|
---|
[639] | 468 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 469 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 470 | }
|
---|
[752] | 471 |
|
---|
[1381] | 472 |
|
---|
[1563] | 473 | if (0)
|
---|
| 474 | {
|
---|
| 475 | ///////////////
|
---|
| 476 | //-- Get stats after the additional sampling step
|
---|
| 477 | //-- and before the bottom-up merge step
|
---|
[570] | 478 |
|
---|
[1563] | 479 | EvaluateViewCellsStats();
|
---|
| 480 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 481 | << mCurrentViewCellsStats << endl;
|
---|
| 482 |
|
---|
| 483 | mRenderer->RenderScene();
|
---|
| 484 | SimulationStatistics ss;
|
---|
| 485 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 486 |
|
---|
[1563] | 487 | Debug << ss << endl;
|
---|
| 488 | }
|
---|
[660] | 489 |
|
---|
[1416] | 490 | ////////////////////
|
---|
[1381] | 491 | //-- post processing of the initial construction
|
---|
| 492 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 493 | //-- We can additionally cast some post processing sample rays.
|
---|
| 494 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 495 |
|
---|
| 496 | VssRayContainer postProcessSamples;
|
---|
| 497 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 498 |
|
---|
| 499 | CastPassSamples(mPostProcessSamples, mSamplingType, postProcessSamples);
|
---|
| 500 |
|
---|
| 501 | cout << "finished" << endl;
|
---|
[574] | 502 | cout << "starting post processing and visualization" << endl;
|
---|
| 503 |
|
---|
[1444] | 504 | // store view cells with rays for post processing?
|
---|
[574] | 505 | const bool storeViewCells = true;
|
---|
[605] | 506 |
|
---|
| 507 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 508 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 509 |
|
---|
[1381] | 510 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 511 |
|
---|
[1414] | 512 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 513 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 514 |
|
---|
[1414] | 515 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 516 | disposeRays(postProcessSamples, outRays);
|
---|
| 517 |
|
---|
[801] | 518 |
|
---|
[1416] | 519 | ////////////////
|
---|
[1381] | 520 | //-- Evaluation of the resulting view cell partition.
|
---|
| 521 | //-- We cast a number of new samples and measure the render cost
|
---|
| 522 |
|
---|
[801] | 523 | if (mEvaluateViewCells)
|
---|
| 524 | {
|
---|
[1145] | 525 | EvalViewCellPartition();
|
---|
[801] | 526 | }
|
---|
[1705] | 527 |
|
---|
| 528 | // write view cells to disc
|
---|
| 529 | if (1 && mExportViewCells)
|
---|
| 530 | {
|
---|
| 531 | char filename[100];
|
---|
| 532 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 533 | ExportViewCells(filename, mExportPvs, mPreprocessor->mObjects);
|
---|
| 534 | }
|
---|
| 535 |
|
---|
[1416] | 536 | /////////////////
|
---|
[1381] | 537 | //-- Finally, we do some visualization
|
---|
| 538 |
|
---|
[666] | 539 | if (mShowVisualization)
|
---|
| 540 | {
|
---|
[1633] | 541 | ///////////////
|
---|
[1381] | 542 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[1633] | 543 |
|
---|
| 544 | VssRayContainer visSamples;
|
---|
| 545 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
| 546 | mSamplingType,
|
---|
| 547 | visSamples);
|
---|
[574] | 548 |
|
---|
[666] | 549 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[1633] | 550 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
[574] | 551 |
|
---|
[1444] | 552 | // various visualizations
|
---|
[1633] | 553 | Visualize(preprocessor->mObjects, visSamples);
|
---|
[574] | 554 |
|
---|
[1633] | 555 | disposeRays(visSamples, outRays);
|
---|
[666] | 556 | }
|
---|
[574] | 557 |
|
---|
[1444] | 558 | // recalculate view cells
|
---|
| 559 | EvaluateViewCellsStats();
|
---|
| 560 |
|
---|
[573] | 561 | return numSamples;
|
---|
[527] | 562 | }
|
---|
| 563 |
|
---|
[547] | 564 |
|
---|
[1418] | 565 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 566 | {
|
---|
| 567 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 568 | }
|
---|
| 569 |
|
---|
| 570 |
|
---|
[752] | 571 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 572 | const int nViewCells)
|
---|
[728] | 573 | {
|
---|
| 574 | std::ofstream outstream;
|
---|
| 575 | outstream.open(filename.c_str());
|
---|
| 576 |
|
---|
| 577 | ViewCellContainer viewCells;
|
---|
[735] | 578 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 579 |
|
---|
| 580 | float maxRenderCost, minRenderCost;
|
---|
[734] | 581 |
|
---|
| 582 | // sort by render cost
|
---|
| 583 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 584 |
|
---|
| 585 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 586 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 587 |
|
---|
[991] | 588 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 589 |
|
---|
[997] | 590 | int histoIntervals;
|
---|
[1004] | 591 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 592 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 593 |
|
---|
[997] | 594 | int histoMaxVal;
|
---|
[1004] | 595 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 596 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 597 |
|
---|
[997] | 598 |
|
---|
[728] | 599 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 600 | const float stepSize = range / (float)intervals;
|
---|
[728] | 601 |
|
---|
[735] | 602 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 603 |
|
---|
| 604 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 605 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 606 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 607 |
|
---|
[736] | 608 | int j = 0;
|
---|
[735] | 609 | int i = 0;
|
---|
| 610 |
|
---|
[734] | 611 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 612 |
|
---|
[744] | 613 | // count for integral
|
---|
| 614 | float volSum = 0;
|
---|
| 615 | int smallerCostSum = 0;
|
---|
[735] | 616 |
|
---|
[734] | 617 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 618 | while (1)
|
---|
| 619 | {
|
---|
[744] | 620 | // count for histogram value
|
---|
| 621 | float volDif = 0;
|
---|
| 622 | int smallerCostDif = 0;
|
---|
[736] | 623 |
|
---|
[734] | 624 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 625 | {
|
---|
[744] | 626 | volSum += viewCells[i]->GetVolume();
|
---|
| 627 | volDif += viewCells[i]->GetVolume();
|
---|
| 628 |
|
---|
[734] | 629 | ++ i;
|
---|
[744] | 630 | ++ smallerCostSum;
|
---|
| 631 | ++ smallerCostDif;
|
---|
[734] | 632 | }
|
---|
[736] | 633 |
|
---|
[744] | 634 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 635 | break;
|
---|
[736] | 636 |
|
---|
[744] | 637 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 638 | const float volRatioSum = volSum / totalVol;
|
---|
| 639 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 640 |
|
---|
[991] | 641 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 642 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 643 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 644 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 645 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 646 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 647 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 648 |
|
---|
| 649 | // increase current render cost
|
---|
[734] | 650 | currentRenderCost += stepSize;
|
---|
| 651 | }
|
---|
[735] | 652 |
|
---|
[734] | 653 | outstream.close();
|
---|
| 654 | }
|
---|
| 655 |
|
---|
[735] | 656 |
|
---|
[979] | 657 |
|
---|
| 658 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 659 | ObjectContainer *objects,
|
---|
[1676] | 660 | bool finalizeViewCells,
|
---|
[979] | 661 | BoundingBoxConverter *bconverter)
|
---|
| 662 |
|
---|
| 663 | {
|
---|
| 664 | ViewCellsParser parser;
|
---|
| 665 | ViewCellsManager *vm = NULL;
|
---|
| 666 |
|
---|
[1616] | 667 | const long startTime = GetTime();
|
---|
| 668 | bool success = parser.ParseViewCellsFile(filename, &vm, objects, bconverter);
|
---|
| 669 |
|
---|
[1715] | 670 | cout<<"viewcells parsed "<<endl<<flush;
|
---|
| 671 |
|
---|
[1616] | 672 | if (success)
|
---|
[979] | 673 | {
|
---|
[1621] | 674 | //vm->ResetViewCells();
|
---|
[1679] | 675 | //hack
|
---|
| 676 | vm->mViewCells.clear();
|
---|
| 677 | ViewCellContainer leaves;
|
---|
| 678 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
[979] | 679 |
|
---|
[1679] | 680 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[1621] | 681 |
|
---|
[1679] | 682 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 683 | {
|
---|
| 684 | vm->mViewCells.push_back(*it);
|
---|
| 685 | }
|
---|
[979] | 686 | vm->mViewCellsFinished = true;
|
---|
| 687 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 688 |
|
---|
| 689 | if (finalizeViewCells)
|
---|
| 690 | {
|
---|
[1444] | 691 | // create the meshes and compute volumes
|
---|
[979] | 692 | vm->FinalizeViewCells(true);
|
---|
[1616] | 693 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 694 | }
|
---|
| 695 |
|
---|
| 696 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 697 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 698 | }
|
---|
| 699 | else
|
---|
| 700 | {
|
---|
| 701 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 702 | DEL_PTR(vm);
|
---|
| 703 | }
|
---|
| 704 |
|
---|
| 705 | return vm;
|
---|
| 706 | }
|
---|
| 707 |
|
---|
| 708 |
|
---|
| 709 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 710 | const bool exportPvs,
|
---|
| 711 | const ObjectContainer &objects)
|
---|
| 712 | {
|
---|
[1002] | 713 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 714 | {
|
---|
[997] | 715 | return false;
|
---|
[1545] | 716 | }
|
---|
[997] | 717 |
|
---|
[979] | 718 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 719 |
|
---|
[1201] | 720 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 721 |
|
---|
| 722 | // for output we need unique ids for each view cell
|
---|
| 723 | CreateUniqueViewCellIds();
|
---|
| 724 |
|
---|
| 725 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 726 | stream << "<VisibilitySolution>" << endl;
|
---|
| 727 |
|
---|
[1262] | 728 | if (exportPvs)
|
---|
| 729 | {
|
---|
| 730 | //-- export bounding boxes
|
---|
| 731 | stream << "<BoundingBoxes>" << endl;
|
---|
[1614] | 732 | #if USE_KD_PVS
|
---|
| 733 | KdIntersectableMap::const_iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
[979] | 734 |
|
---|
[1614] | 735 | int id = 0;
|
---|
| 736 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 737 | {
|
---|
| 738 | Intersectable *obj = (*kit).second;
|
---|
| 739 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
| 740 |
|
---|
| 741 | obj->SetId(id);
|
---|
| 742 |
|
---|
| 743 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 744 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 745 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 746 | }
|
---|
| 747 | #else
|
---|
| 748 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 749 |
|
---|
[1262] | 750 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 751 | {
|
---|
[1563] | 752 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 753 |
|
---|
[1551] | 754 | ////////////
|
---|
[979] | 755 | //-- the bounding boxes
|
---|
[1563] | 756 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[979] | 757 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 758 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 759 | }
|
---|
[1614] | 760 | #endif
|
---|
[1262] | 761 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 762 | }
|
---|
[979] | 763 |
|
---|
[1264] | 764 |
|
---|
[1551] | 765 | /////////////
|
---|
[979] | 766 | //-- export the view cells and the pvs
|
---|
| 767 |
|
---|
| 768 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 769 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 770 |
|
---|
[979] | 771 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 772 |
|
---|
| 773 | stream << "</ViewCells>" << endl;
|
---|
| 774 |
|
---|
| 775 |
|
---|
[1551] | 776 | //////////
|
---|
[1262] | 777 | //-- export the view space hierarchy
|
---|
[979] | 778 |
|
---|
[1262] | 779 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 780 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 781 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 782 |
|
---|
[979] | 783 | mVspBspTree->Export(stream);
|
---|
[1286] | 784 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 785 |
|
---|
| 786 | stream << "</VisibilitySolution>" << endl;
|
---|
| 787 |
|
---|
| 788 | stream.close();
|
---|
| 789 | cout << "finished" << endl;
|
---|
| 790 |
|
---|
| 791 | return true;
|
---|
| 792 | }
|
---|
| 793 |
|
---|
| 794 |
|
---|
[735] | 795 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 796 | const int nViewCells)
|
---|
[734] | 797 | {
|
---|
| 798 | std::ofstream outstream;
|
---|
| 799 | outstream.open(filename.c_str());
|
---|
| 800 |
|
---|
| 801 | ViewCellContainer viewCells;
|
---|
[735] | 802 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 803 |
|
---|
[1709] | 804 | float maxPvs, maxVal, minVal;
|
---|
[734] | 805 |
|
---|
[997] | 806 | // sort by pvs size
|
---|
[735] | 807 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 808 |
|
---|
[1709] | 809 | maxPvs = mViewCellsTree->GetPvsCost(viewCells.back());
|
---|
[997] | 810 | minVal = 0;
|
---|
| 811 |
|
---|
[991] | 812 | // hack: normalize pvs size
|
---|
[997] | 813 | int histoMaxVal;
|
---|
[1004] | 814 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1709] | 815 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
[997] | 816 |
|
---|
[1121] | 817 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 818 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 819 |
|
---|
[997] | 820 | int histoIntervals;
|
---|
[1004] | 821 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 822 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 823 |
|
---|
[1709] | 824 | const float range = maxVal - minVal;
|
---|
| 825 | int stepSize = (int)(range / intervals);
|
---|
[735] | 826 |
|
---|
[997] | 827 | // set step size to avoid endless loop
|
---|
[735] | 828 | if (!stepSize) stepSize = 1;
|
---|
[979] | 829 |
|
---|
| 830 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 831 |
|
---|
[735] | 832 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 833 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 834 |
|
---|
[1709] | 835 | float currentPvs = minVal;
|
---|
[997] | 836 |
|
---|
[735] | 837 | int i = 0;
|
---|
| 838 | int j = 0;
|
---|
[744] | 839 | float volSum = 0;
|
---|
| 840 | int smallerSum = 0;
|
---|
| 841 |
|
---|
[735] | 842 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 843 |
|
---|
[997] | 844 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 845 | {
|
---|
[744] | 846 | float volDif = 0;
|
---|
| 847 | int smallerDif = 0;
|
---|
[736] | 848 |
|
---|
[997] | 849 | while ((i < (int)viewCells.size()) &&
|
---|
[1709] | 850 | (mViewCellsTree->GetPvsCost(viewCells[i]) < currentPvs))
|
---|
[735] | 851 | {
|
---|
[744] | 852 | volDif += viewCells[i]->GetVolume();
|
---|
| 853 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 854 |
|
---|
[735] | 855 | ++ i;
|
---|
[744] | 856 | ++ smallerDif;
|
---|
| 857 | ++ smallerSum;
|
---|
[735] | 858 | }
|
---|
[736] | 859 |
|
---|
[997] | 860 | if (0 && (i < (int)viewCells.size()))
|
---|
[1709] | 861 | Debug << "new pvs cost increase: " << mViewCellsTree->GetPvsCost(viewCells[i])
|
---|
[1121] | 862 | << " " << currentPvs << endl;
|
---|
[997] | 863 |
|
---|
[744] | 864 | const float volRatioDif = volDif / totalVol;
|
---|
| 865 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 866 |
|
---|
[997] | 867 | outstream << "#Pass\n" << j << endl;
|
---|
| 868 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 869 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 870 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 871 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 872 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 873 |
|
---|
| 874 | //-- increase current pvs size to define next interval
|
---|
| 875 | currentPvs += stepSize;
|
---|
[728] | 876 | }
|
---|
[991] | 877 |
|
---|
[735] | 878 | outstream.close();
|
---|
[728] | 879 | }
|
---|
| 880 |
|
---|
[735] | 881 |
|
---|
[1002] | 882 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 883 | {
|
---|
| 884 | return mExportPvs;
|
---|
| 885 | }
|
---|
| 886 |
|
---|
| 887 |
|
---|
[1259] | 888 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 889 | const Vector3 &hitPoint,
|
---|
| 890 | ViewCell *vc,
|
---|
| 891 | const float pdf,
|
---|
| 892 | float &contribution) const
|
---|
| 893 | {
|
---|
| 894 | if (!obj) return false;
|
---|
| 895 |
|
---|
| 896 | // potentially visible objects
|
---|
| 897 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 898 | }
|
---|
| 899 |
|
---|
| 900 |
|
---|
[1580] | 901 | void ViewCellsManager::ResetPvs()
|
---|
| 902 | {
|
---|
| 903 | if (ViewCellsTreeConstructed())
|
---|
| 904 | {
|
---|
| 905 | mViewCellsTree->ResetPvs();
|
---|
| 906 | }
|
---|
| 907 | else
|
---|
| 908 | {
|
---|
| 909 | cout << "view cells tree not constructed" << endl;
|
---|
| 910 | }
|
---|
| 911 | }
|
---|
| 912 |
|
---|
| 913 |
|
---|
[1679] | 914 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
| 915 | {
|
---|
| 916 | mViewCellsTree->ExportStats(fileName);
|
---|
| 917 | }
|
---|
| 918 |
|
---|
| 919 |
|
---|
[1145] | 920 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 921 | {
|
---|
| 922 | int samplesPerPass;
|
---|
| 923 | int numSamples;
|
---|
| 924 | int castSamples = 0;
|
---|
[1570] | 925 | char str[64];
|
---|
[1695] | 926 | int oldSamples = 0;
|
---|
[660] | 927 |
|
---|
[1695] | 928 | int samplesForStats;
|
---|
| 929 |
|
---|
[1004] | 930 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
[1695] | 931 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
[1004] | 932 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 933 |
|
---|
[664] | 934 | char statsPrefix[100];
|
---|
[1004] | 935 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 936 |
|
---|
[664] | 937 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 938 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 939 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 940 |
|
---|
[666] | 941 | // should directional sampling be used?
|
---|
[1603] | 942 | bool dirSamples =
|
---|
| 943 | (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 944 |
|
---|
[801] | 945 | cout << "reseting pvs ... ";
|
---|
| 946 |
|
---|
[1145] | 947 | const bool startFromZero = true;
|
---|
[801] | 948 |
|
---|
[666] | 949 | // reset pvs and start over from zero
|
---|
| 950 | if (startFromZero)
|
---|
| 951 | {
|
---|
| 952 | mViewCellsTree->ResetPvs();
|
---|
| 953 | }
|
---|
[1145] | 954 | else // start from current sampless
|
---|
[666] | 955 | {
|
---|
[1145] | 956 | // statistics before casting more samples
|
---|
[666] | 957 | cout << "compute new statistics ... ";
|
---|
[1570] | 958 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 959 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 960 |
|
---|
| 961 | mViewCellsTree->ExportStats(fName);
|
---|
| 962 | cout << "finished" << endl;
|
---|
| 963 | }
|
---|
[1570] | 964 |
|
---|
[744] | 965 | cout << "finished" << endl;
|
---|
[1178] | 966 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 967 |
|
---|
[660] | 968 | while (castSamples < numSamples)
|
---|
[1686] | 969 | {
|
---|
| 970 | ///////////////
|
---|
| 971 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 972 |
|
---|
[664] | 973 | VssRayContainer evaluationSamples;
|
---|
[1686] | 974 | const int samplingType = mEvaluationSamplingType;
|
---|
[663] | 975 |
|
---|
[1004] | 976 | long startTime = GetTime();
|
---|
| 977 |
|
---|
| 978 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 979 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 980 |
|
---|
[664] | 981 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 982 |
|
---|
| 983 | castSamples += samplesPerPass;
|
---|
| 984 |
|
---|
[1004] | 985 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
[1695] | 986 |
|
---|
| 987 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 988 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1695] | 989 |
|
---|
| 990 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
[1004] | 991 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 992 |
|
---|
| 993 | startTime = GetTime();
|
---|
| 994 |
|
---|
[664] | 995 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 996 |
|
---|
[1004] | 997 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 998 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 999 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 1000 |
|
---|
[1695] | 1001 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
| 1002 | {
|
---|
| 1003 | oldSamples += samplesForStats;
|
---|
[1686] | 1004 |
|
---|
[1695] | 1005 | ///////////
|
---|
| 1006 | //-- output stats
|
---|
[1686] | 1007 |
|
---|
[1695] | 1008 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 1009 | string fileName = string(statsPrefix) + string(str);
|
---|
[1686] | 1010 |
|
---|
[1695] | 1011 | ///////////////
|
---|
| 1012 | //-- propagate pvs or pvs size information
|
---|
[1586] | 1013 |
|
---|
[1695] | 1014 | startTime = GetTime();
|
---|
| 1015 | ObjectPvs pvs;
|
---|
[664] | 1016 |
|
---|
[1709] | 1017 | cout << "updating pvs for evaluation ... " << endl;
|
---|
[664] | 1018 |
|
---|
[1695] | 1019 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 1020 |
|
---|
| 1021 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1022 | cout << "finished updating the pvs in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1023 | Debug << "pvs evaluated in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1024 |
|
---|
| 1025 | startTime = GetTime();
|
---|
| 1026 | cout << "compute new statistics ... " << endl;
|
---|
| 1027 |
|
---|
| 1028 | ExportStats(fileName);
|
---|
| 1029 |
|
---|
| 1030 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 1031 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1032 | Debug << "statistis computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 1033 | }
|
---|
| 1034 |
|
---|
[664] | 1035 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 1036 | }
|
---|
[728] | 1037 |
|
---|
[997] | 1038 |
|
---|
[1570] | 1039 | ////////////
|
---|
[997] | 1040 | //-- histogram
|
---|
| 1041 |
|
---|
[1695] | 1042 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[735] | 1043 | bool useHisto;
|
---|
[997] | 1044 | int histoStepSize;
|
---|
[693] | 1045 |
|
---|
[1004] | 1046 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 1047 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 1048 |
|
---|
[735] | 1049 | if (useHisto)
|
---|
[734] | 1050 | {
|
---|
[735] | 1051 | // evaluate view cells in a histogram
|
---|
| 1052 | char s[64];
|
---|
| 1053 |
|
---|
[997] | 1054 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 1055 | {
|
---|
[997] | 1056 | string filename;
|
---|
[744] | 1057 |
|
---|
[997] | 1058 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 1059 | #if 0
|
---|
[744] | 1060 | //-- evaluate histogram for render cost
|
---|
| 1061 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 1062 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 1063 |
|
---|
| 1064 | EvalViewCellHistogram(filename, pass);
|
---|
| 1065 |
|
---|
[997] | 1066 | #endif
|
---|
[744] | 1067 | //////////////////////////////////////////
|
---|
[752] | 1068 | //-- evaluate histogram for pvs size
|
---|
[744] | 1069 |
|
---|
| 1070 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 1071 |
|
---|
| 1072 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 1073 | filename = string(statsPrefix) + string(s);
|
---|
| 1074 |
|
---|
| 1075 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 1076 | }
|
---|
[734] | 1077 | }
|
---|
[660] | 1078 | }
|
---|
| 1079 |
|
---|
[704] | 1080 |
|
---|
| 1081 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 1082 | {
|
---|
[704] | 1083 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 1084 | }
|
---|
[660] | 1085 |
|
---|
[703] | 1086 |
|
---|
[1145] | 1087 | /// Returns index of the best view cells of the neighborhood
|
---|
[1707] | 1088 | static int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
[704] | 1089 | {
|
---|
[705] | 1090 | int bestViewCellIdx = 0;
|
---|
[703] | 1091 |
|
---|
[704] | 1092 | float mergeCost = Limits::Infinity;
|
---|
| 1093 | int i = 0;
|
---|
[703] | 1094 |
|
---|
[734] | 1095 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1096 |
|
---|
[734] | 1097 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1098 | {
|
---|
[734] | 1099 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1100 |
|
---|
| 1101 | if (mc < mergeCost)
|
---|
[704] | 1102 | {
|
---|
| 1103 | mergeCost = mc;
|
---|
| 1104 | bestViewCellIdx = i;
|
---|
[703] | 1105 | }
|
---|
[704] | 1106 | }
|
---|
[703] | 1107 |
|
---|
[704] | 1108 | return bestViewCellIdx;
|
---|
| 1109 | }
|
---|
[703] | 1110 |
|
---|
| 1111 |
|
---|
[728] | 1112 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1113 | {
|
---|
| 1114 | mMaxFilterSize = size;
|
---|
| 1115 | }
|
---|
| 1116 |
|
---|
| 1117 |
|
---|
[1703] | 1118 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) //const
|
---|
[728] | 1119 | {
|
---|
[1703] | 1120 | switch (sRenderCostEvaluationType)
|
---|
[728] | 1121 | {
|
---|
| 1122 | case PER_OBJECT:
|
---|
[752] | 1123 | return 1.0f;
|
---|
[728] | 1124 |
|
---|
| 1125 | case PER_TRIANGLE:
|
---|
[1703] | 1126 | {
|
---|
[1701] | 1127 | return (float)obj->NumberOfFaces();
|
---|
[728] | 1128 | }
|
---|
| 1129 | default:
|
---|
[752] | 1130 | cout << "default" << endl;
|
---|
| 1131 | return 1.0f;
|
---|
[728] | 1132 | }
|
---|
| 1133 |
|
---|
| 1134 | // should not come here
|
---|
[752] | 1135 | return 0.0f;
|
---|
[728] | 1136 | }
|
---|
| 1137 |
|
---|
| 1138 |
|
---|
[704] | 1139 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1140 | const ViewCellContainer &viewCells)
|
---|
| 1141 | {
|
---|
| 1142 | ViewCell *root = currentViewCell;
|
---|
| 1143 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1144 |
|
---|
[704] | 1145 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1146 |
|
---|
[704] | 1147 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1148 |
|
---|
| 1149 | /////////////////
|
---|
[704] | 1150 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1151 |
|
---|
[704] | 1152 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1153 | {
|
---|
[704] | 1154 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1155 |
|
---|
[704] | 1156 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1157 |
|
---|
[704] | 1158 | // remove from vector
|
---|
| 1159 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1160 | neighborhood.pop_back();
|
---|
[705] | 1161 |
|
---|
[704] | 1162 | if (!bestViewCell || !root)
|
---|
[1545] | 1163 | cout << "warning!!" << endl;
|
---|
[705] | 1164 |
|
---|
[704] | 1165 | // create new root of the hierarchy
|
---|
| 1166 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1167 | }
|
---|
| 1168 |
|
---|
[704] | 1169 | return root;
|
---|
[703] | 1170 | }
|
---|
| 1171 |
|
---|
[704] | 1172 |
|
---|
[713] | 1173 | struct SortableViewCellEntry {
|
---|
| 1174 |
|
---|
[1174] | 1175 | SortableViewCellEntry() {}
|
---|
| 1176 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1177 |
|
---|
[1174] | 1178 | float mValue;
|
---|
| 1179 | ViewCell *mViewCell;
|
---|
| 1180 |
|
---|
| 1181 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1182 | return a.mValue < b.mValue;
|
---|
| 1183 | }
|
---|
[713] | 1184 | };
|
---|
| 1185 |
|
---|
[1174] | 1186 |
|
---|
| 1187 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1188 | const ViewCellContainer &viewCells)
|
---|
[713] | 1189 | {
|
---|
| 1190 |
|
---|
| 1191 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1192 | int i, j;
|
---|
| 1193 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1194 | if (viewCells[i] != currentViewCell)
|
---|
| 1195 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1196 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1197 | viewCells[i]);
|
---|
| 1198 | }
|
---|
| 1199 | neighborhood.resize(j);
|
---|
| 1200 |
|
---|
| 1201 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1202 |
|
---|
| 1203 | ViewCell *root = currentViewCell;
|
---|
| 1204 |
|
---|
| 1205 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1206 |
|
---|
| 1207 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1208 | //-- use priority queue to merge leaf pairs
|
---|
| 1209 |
|
---|
| 1210 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1211 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1212 | {
|
---|
[713] | 1213 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1214 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1215 | // create new root of the hierarchy
|
---|
| 1216 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1217 | // set negative cost so that this view cell gets deleted
|
---|
| 1218 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1219 | }
|
---|
[713] | 1220 |
|
---|
| 1221 | return root;
|
---|
| 1222 | }
|
---|
| 1223 |
|
---|
| 1224 | void
|
---|
| 1225 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1226 | ) const
|
---|
| 1227 | {
|
---|
[1586] | 1228 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1229 | {
|
---|
| 1230 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1231 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1232 |
|
---|
| 1233 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1234 | DeleteLocalMergeTree(*it);
|
---|
| 1235 |
|
---|
| 1236 | vci->mChildren.clear();
|
---|
| 1237 |
|
---|
| 1238 | delete vci;
|
---|
[713] | 1239 | }
|
---|
| 1240 | }
|
---|
| 1241 |
|
---|
[1021] | 1242 |
|
---|
[564] | 1243 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1244 | int minPvsSize,
|
---|
[562] | 1245 | int maxPvsSize) const
|
---|
[547] | 1246 | {
|
---|
[569] | 1247 |
|
---|
[1707] | 1248 | if ((vc->GetPvs().EvalPvsCost() > maxPvsSize) ||
|
---|
| 1249 | (vc->GetPvs().EvalPvsCost() < minPvsSize))
|
---|
[564] | 1250 | {
|
---|
[710] | 1251 | return false;
|
---|
[561] | 1252 | }
|
---|
[570] | 1253 |
|
---|
[710] | 1254 | return true;
|
---|
[547] | 1255 | }
|
---|
| 1256 |
|
---|
| 1257 |
|
---|
[710] | 1258 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1259 | ViewCellContainer &viewCells) const
|
---|
| 1260 | {
|
---|
| 1261 | return 0;
|
---|
| 1262 | };
|
---|
| 1263 |
|
---|
[1021] | 1264 |
|
---|
[697] | 1265 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1266 | const float width) const
|
---|
| 1267 | {
|
---|
[746] | 1268 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1269 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1270 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1271 |
|
---|
| 1272 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1273 | }
|
---|
| 1274 |
|
---|
| 1275 |
|
---|
[904] | 1276 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1277 | PrVs &prvs,
|
---|
| 1278 | const float filterWidth)
|
---|
[697] | 1279 | {
|
---|
[1594] | 1280 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1281 |
|
---|
[1594] | 1282 | if (mMaxFilterSize < 1) {
|
---|
| 1283 | prvs.mViewCell = currentViewCell;
|
---|
| 1284 | return;
|
---|
| 1285 | }
|
---|
| 1286 |
|
---|
| 1287 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1288 |
|
---|
| 1289 | if (currentViewCell)
|
---|
[1545] | 1290 | {
|
---|
[1594] | 1291 | ViewCellContainer viewCells;
|
---|
| 1292 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1293 |
|
---|
| 1294 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1295 | prvs.mViewCell = root;
|
---|
| 1296 |
|
---|
[1545] | 1297 | }
|
---|
[1594] | 1298 | else
|
---|
[1545] | 1299 | {
|
---|
[1594] | 1300 | prvs.mViewCell = NULL;
|
---|
| 1301 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1302 | }
|
---|
[697] | 1303 | }
|
---|
| 1304 |
|
---|
| 1305 |
|
---|
[581] | 1306 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1307 | {
|
---|
[1002] | 1308 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1309 | }
|
---|
| 1310 |
|
---|
| 1311 |
|
---|
[564] | 1312 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1313 | int minPvs,
|
---|
[562] | 1314 | int maxPvs) const
|
---|
| 1315 | {
|
---|
| 1316 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1317 | }
|
---|
| 1318 |
|
---|
[577] | 1319 |
|
---|
[569] | 1320 | void
|
---|
| 1321 | ViewCellsManager::SetValidity(
|
---|
[570] | 1322 | int minPvsSize,
|
---|
[569] | 1323 | int maxPvsSize) const
|
---|
| 1324 | {
|
---|
[991] | 1325 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1326 |
|
---|
[991] | 1327 |
|
---|
| 1328 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1329 | {
|
---|
| 1330 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1331 | }
|
---|
[569] | 1332 | }
|
---|
[562] | 1333 |
|
---|
[569] | 1334 | void
|
---|
| 1335 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1336 | const float minValid,
|
---|
| 1337 | const float maxValid
|
---|
| 1338 | )
|
---|
| 1339 | {
|
---|
[997] | 1340 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1341 |
|
---|
[1151] | 1342 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1343 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1344 |
|
---|
[1151] | 1345 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1346 | {
|
---|
| 1347 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1348 | }
|
---|
[569] | 1349 | }
|
---|
| 1350 |
|
---|
[1148] | 1351 |
|
---|
[991] | 1352 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1353 | {
|
---|
[991] | 1354 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1355 | int valid = 0;
|
---|
| 1356 |
|
---|
| 1357 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1358 | {
|
---|
| 1359 | if ((*it)->GetValid())
|
---|
| 1360 | ++ valid;
|
---|
| 1361 | }
|
---|
| 1362 |
|
---|
| 1363 | return valid;
|
---|
[569] | 1364 | }
|
---|
| 1365 |
|
---|
[577] | 1366 |
|
---|
[1545] | 1367 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1368 | const bool extrudeBaseTriangles)
|
---|
[440] | 1369 | {
|
---|
[1545] | 1370 | /// we use predefined view cells from now on
|
---|
| 1371 | mUsePredefinedViewCells = true;
|
---|
[440] | 1372 | X3dParser parser;
|
---|
[1545] | 1373 |
|
---|
| 1374 | if (extrudeBaseTriangles)
|
---|
| 1375 | {
|
---|
| 1376 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1377 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1378 |
|
---|
| 1379 | if (!success)
|
---|
| 1380 | return false;
|
---|
[1545] | 1381 | }
|
---|
| 1382 | else
|
---|
| 1383 | {
|
---|
| 1384 | // hack: use standard mesh loading
|
---|
| 1385 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1386 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1387 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1388 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1389 |
|
---|
| 1390 | if (!success)
|
---|
[1545] | 1391 | {
|
---|
[1563] | 1392 | DEL_PTR(root);
|
---|
| 1393 | return false;
|
---|
| 1394 | }
|
---|
| 1395 |
|
---|
| 1396 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1397 |
|
---|
| 1398 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1399 | {
|
---|
| 1400 | Mesh *mesh;
|
---|
| 1401 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1402 | {
|
---|
[1563] | 1403 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1404 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1405 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1406 | }
|
---|
[1563] | 1407 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1408 | {
|
---|
| 1409 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1410 | mesh = mit->GetMesh();
|
---|
| 1411 | }
|
---|
| 1412 | mesh->ComputeBoundingBox();
|
---|
| 1413 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1414 | }
|
---|
[1563] | 1415 |
|
---|
[1545] | 1416 | DEL_PTR(root);
|
---|
| 1417 | }
|
---|
[503] | 1418 |
|
---|
[1563] | 1419 | // set view space box to bounding box of the view cells
|
---|
| 1420 | AxisAlignedBox3 bbox;
|
---|
| 1421 | bbox.Initialize();
|
---|
| 1422 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1423 |
|
---|
| 1424 | for (; it != it_end; ++ it)
|
---|
[1545] | 1425 | {
|
---|
[1563] | 1426 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1427 | }
|
---|
[503] | 1428 |
|
---|
[1563] | 1429 | SetViewSpaceBox(bbox);
|
---|
| 1430 | cout << "view space box: " << bbox << endl;
|
---|
| 1431 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1432 |
|
---|
| 1433 | return true;
|
---|
[440] | 1434 | }
|
---|
| 1435 |
|
---|
[485] | 1436 |
|
---|
[487] | 1437 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1438 | {
|
---|
[542] | 1439 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1440 | return true;
|
---|
| 1441 | }
|
---|
| 1442 |
|
---|
| 1443 |
|
---|
[557] | 1444 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1445 | {
|
---|
[610] | 1446 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1447 | }
|
---|
| 1448 |
|
---|
| 1449 |
|
---|
[490] | 1450 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1451 | {
|
---|
[1444] | 1452 | if (!ViewCellsConstructed())
|
---|
| 1453 | {
|
---|
| 1454 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1455 | }
|
---|
| 1456 | else
|
---|
| 1457 | {
|
---|
| 1458 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1459 | return false;
|
---|
[837] | 1460 |
|
---|
[1444] | 1461 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1462 |
|
---|
| 1463 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1464 | return false;
|
---|
| 1465 | }
|
---|
| 1466 |
|
---|
| 1467 | return true;
|
---|
[490] | 1468 | }
|
---|
| 1469 |
|
---|
[501] | 1470 |
|
---|
[1444] | 1471 | float ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1472 | const bool addRays,
|
---|
| 1473 | const bool storeViewCells)
|
---|
[440] | 1474 | {
|
---|
[1444] | 1475 | // view cells not yet constructed
|
---|
| 1476 | if (!ViewCellsConstructed())
|
---|
| 1477 | return 0.0f;
|
---|
| 1478 |
|
---|
| 1479 | float sum = 0.0f;
|
---|
| 1480 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1481 |
|
---|
| 1482 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1483 | {
|
---|
| 1484 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1485 | }
|
---|
[503] | 1486 |
|
---|
[1444] | 1487 | return sum;
|
---|
[440] | 1488 | }
|
---|
| 1489 |
|
---|
[485] | 1490 |
|
---|
[479] | 1491 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1492 | {
|
---|
[660] | 1493 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1494 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1495 |
|
---|
| 1496 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1497 | {
|
---|
[660] | 1498 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1499 | }
|
---|
[479] | 1500 | }
|
---|
| 1501 |
|
---|
[485] | 1502 |
|
---|
[580] | 1503 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1504 | float &expectedRenderCost,
|
---|
[580] | 1505 | float &deviation,
|
---|
| 1506 | float &variance,
|
---|
[1709] | 1507 | float &totalCost,
|
---|
[580] | 1508 | float &avgRenderCost)
|
---|
[579] | 1509 | {
|
---|
[1444] | 1510 | ////////////
|
---|
| 1511 | //-- compute expected value
|
---|
[579] | 1512 |
|
---|
| 1513 | totalRenderCost = 0;
|
---|
[1709] | 1514 | totalCost = 0;
|
---|
[579] | 1515 |
|
---|
[1444] | 1516 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1517 |
|
---|
[579] | 1518 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1519 | {
|
---|
| 1520 | ViewCell *vc = *it;
|
---|
[1707] | 1521 | totalRenderCost += vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[1709] | 1522 | totalCost += (int)vc->GetPvs().EvalPvsCost();
|
---|
[579] | 1523 | }
|
---|
| 1524 |
|
---|
[580] | 1525 | // normalize with view space box
|
---|
| 1526 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1527 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[1709] | 1528 | avgRenderCost = totalCost / (float)mViewCells.size();
|
---|
[579] | 1529 |
|
---|
| 1530 |
|
---|
[1444] | 1531 | ///////////
|
---|
[580] | 1532 | //-- compute standard defiation
|
---|
[1444] | 1533 |
|
---|
[579] | 1534 | variance = 0;
|
---|
[580] | 1535 | deviation = 0;
|
---|
[579] | 1536 |
|
---|
| 1537 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1538 | {
|
---|
| 1539 | ViewCell *vc = *it;
|
---|
| 1540 |
|
---|
[1707] | 1541 | float renderCost = vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
[580] | 1542 | float dev;
|
---|
[579] | 1543 |
|
---|
[580] | 1544 | if (1)
|
---|
[1707] | 1545 | dev = fabs(avgRenderCost - (float)vc->GetPvs().EvalPvsCost());
|
---|
[580] | 1546 | else
|
---|
| 1547 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1548 |
|
---|
[580] | 1549 | deviation += dev;
|
---|
| 1550 | variance += dev * dev;
|
---|
[579] | 1551 | }
|
---|
[580] | 1552 |
|
---|
[579] | 1553 | variance /= (float)mViewCells.size();
|
---|
[580] | 1554 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1555 | }
|
---|
| 1556 |
|
---|
| 1557 |
|
---|
[478] | 1558 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1559 | {
|
---|
| 1560 | return viewCell->GetArea();
|
---|
| 1561 | }
|
---|
| 1562 |
|
---|
| 1563 |
|
---|
| 1564 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1565 | {
|
---|
| 1566 | return viewCell->GetVolume();
|
---|
| 1567 | }
|
---|
| 1568 |
|
---|
[485] | 1569 |
|
---|
[503] | 1570 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1571 | const float height) const
|
---|
| 1572 | {
|
---|
| 1573 | // one mesh per view cell
|
---|
[1001] | 1574 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1575 |
|
---|
[1545] | 1576 | ////////////
|
---|
[440] | 1577 | //-- construct prism
|
---|
| 1578 |
|
---|
[503] | 1579 | // bottom
|
---|
[440] | 1580 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1581 | // top
|
---|
| 1582 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1583 | // sides
|
---|
| 1584 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1585 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1586 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1587 |
|
---|
[1545] | 1588 |
|
---|
| 1589 | /////////////
|
---|
| 1590 | //-- extrude new vertices for top of prism
|
---|
| 1591 |
|
---|
[1586] | 1592 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1593 | Triangle3 topTri;
|
---|
[440] | 1594 |
|
---|
| 1595 | // add base vertices and calculate top vertices
|
---|
| 1596 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1597 | {
|
---|
[440] | 1598 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1599 | }
|
---|
[503] | 1600 |
|
---|
| 1601 | // add top vertices
|
---|
[440] | 1602 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1603 | {
|
---|
[440] | 1604 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1605 | }
|
---|
[503] | 1606 |
|
---|
[1545] | 1607 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1608 | mesh->ComputeBoundingBox();
|
---|
| 1609 |
|
---|
[440] | 1610 | return GenerateViewCell(mesh);
|
---|
| 1611 | }
|
---|
| 1612 |
|
---|
[485] | 1613 |
|
---|
[551] | 1614 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1615 | {
|
---|
| 1616 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1617 |
|
---|
| 1618 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1619 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1620 | {
|
---|
| 1621 | Finalize(*it, createMesh);
|
---|
| 1622 | }
|
---|
[555] | 1623 |
|
---|
[1584] | 1624 | mViewCellsTree->AssignRandomColors();
|
---|
| 1625 |
|
---|
[555] | 1626 | mTotalAreaValid = false;
|
---|
[551] | 1627 | }
|
---|
| 1628 |
|
---|
| 1629 |
|
---|
| 1630 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1631 | {
|
---|
| 1632 | // implemented in subclasses
|
---|
| 1633 | }
|
---|
| 1634 |
|
---|
[1001] | 1635 |
|
---|
[1168] | 1636 | /** fast way of merging 2 view cells.
|
---|
| 1637 | */
|
---|
[582] | 1638 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1639 | {
|
---|
[580] | 1640 | // generate parent view cell
|
---|
[752] | 1641 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1642 |
|
---|
[752] | 1643 | vc->GetPvs().Clear();
|
---|
[610] | 1644 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1645 |
|
---|
| 1646 | // merge pvs of right cell
|
---|
[610] | 1647 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1648 |
|
---|
[710] | 1649 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1650 | vc->mChildren.push_back(left);
|
---|
| 1651 | vc->mChildren.push_back(right);
|
---|
| 1652 |
|
---|
[752] | 1653 | // update pvs size
|
---|
[1707] | 1654 | UpdateScalarPvsSize(vc, vc->GetPvs().EvalPvsCost(), vc->GetPvs().GetSize());
|
---|
[752] | 1655 |
|
---|
[440] | 1656 | return vc;
|
---|
| 1657 | }
|
---|
| 1658 |
|
---|
[485] | 1659 |
|
---|
[582] | 1660 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1661 | {
|
---|
[752] | 1662 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1663 |
|
---|
| 1664 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1665 |
|
---|
| 1666 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1667 | {
|
---|
| 1668 | // merge pvs
|
---|
[610] | 1669 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1670 | vc->mChildren.push_back(*it);
|
---|
[582] | 1671 | }
|
---|
| 1672 |
|
---|
| 1673 | return vc;
|
---|
| 1674 | }
|
---|
| 1675 |
|
---|
| 1676 |
|
---|
[480] | 1677 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1678 | {
|
---|
| 1679 | mRenderer = renderer;
|
---|
| 1680 | }
|
---|
[441] | 1681 |
|
---|
[485] | 1682 |
|
---|
[580] | 1683 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1684 | {
|
---|
[580] | 1685 | return mViewCellsTree;
|
---|
[440] | 1686 | }
|
---|
| 1687 |
|
---|
| 1688 |
|
---|
| 1689 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1690 | {
|
---|
[444] | 1691 | mVisualizationSamples = visSamples;
|
---|
[440] | 1692 | }
|
---|
| 1693 |
|
---|
[485] | 1694 |
|
---|
[440] | 1695 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1696 | {
|
---|
| 1697 | mConstructionSamples = constructionSamples;
|
---|
| 1698 | }
|
---|
| 1699 |
|
---|
[485] | 1700 |
|
---|
[574] | 1701 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1702 | {
|
---|
| 1703 | mInitialSamples = initialSamples;
|
---|
| 1704 | }
|
---|
| 1705 |
|
---|
| 1706 |
|
---|
[440] | 1707 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1708 | {
|
---|
| 1709 | mPostProcessSamples = postProcessSamples;
|
---|
| 1710 | }
|
---|
| 1711 |
|
---|
[485] | 1712 |
|
---|
[440] | 1713 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1714 | {
|
---|
| 1715 | return mVisualizationSamples;
|
---|
| 1716 | }
|
---|
| 1717 |
|
---|
[485] | 1718 |
|
---|
[440] | 1719 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1720 | {
|
---|
| 1721 | return mConstructionSamples;
|
---|
| 1722 | }
|
---|
| 1723 |
|
---|
[485] | 1724 |
|
---|
[440] | 1725 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1726 | {
|
---|
| 1727 | return mPostProcessSamples;
|
---|
| 1728 | }
|
---|
| 1729 |
|
---|
[485] | 1730 |
|
---|
[719] | 1731 | void ViewCellsManager::UpdatePvs()
|
---|
| 1732 | {
|
---|
[720] | 1733 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1734 | return;
|
---|
| 1735 |
|
---|
| 1736 | mViewCellPvsIsUpdated = true;
|
---|
| 1737 |
|
---|
| 1738 | ViewCellContainer leaves;
|
---|
| 1739 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1740 |
|
---|
| 1741 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1742 |
|
---|
| 1743 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1744 | {
|
---|
| 1745 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1746 | }
|
---|
| 1747 | }
|
---|
| 1748 |
|
---|
| 1749 |
|
---|
[485] | 1750 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1751 | {
|
---|
[1709] | 1752 | // update pvs of view cells tree if necessary
|
---|
| 1753 | UpdatePvs();
|
---|
| 1754 |
|
---|
| 1755 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1756 |
|
---|
| 1757 | stat.viewcells = 0;
|
---|
| 1758 | stat.minPvs = 100000000;
|
---|
| 1759 | stat.maxPvs = 0;
|
---|
| 1760 | stat.avgPvs = 0.0f;
|
---|
| 1761 |
|
---|
| 1762 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1763 | {
|
---|
[1709] | 1764 | ViewCell *viewcell = *it;
|
---|
[1121] | 1765 |
|
---|
[1709] | 1766 | const float pvsCost = mViewCellsTree->GetPvsCost(viewcell);
|
---|
[1121] | 1767 |
|
---|
[1709] | 1768 | if (pvsCost < stat.minPvs)
|
---|
| 1769 | stat.minPvs = pvsCost;
|
---|
| 1770 | if (pvsCost > stat.maxPvs)
|
---|
| 1771 | stat.maxPvs = pvsCost;
|
---|
[1121] | 1772 |
|
---|
[1709] | 1773 | stat.avgPvs += pvsCost;
|
---|
| 1774 |
|
---|
| 1775 | ++ stat.viewcells;
|
---|
[719] | 1776 | }
|
---|
[1709] | 1777 |
|
---|
| 1778 | if (stat.viewcells)
|
---|
| 1779 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1780 | }
|
---|
| 1781 |
|
---|
[485] | 1782 |
|
---|
[480] | 1783 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1784 | {
|
---|
| 1785 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1786 | PvsStatistics pvsStat;
|
---|
| 1787 | GetPvsStatistics(pvsStat);
|
---|
| 1788 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1789 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1790 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1791 | }
|
---|
| 1792 |
|
---|
[485] | 1793 |
|
---|
[532] | 1794 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1795 | {
|
---|
| 1796 | return 0;
|
---|
| 1797 | }
|
---|
| 1798 |
|
---|
[547] | 1799 |
|
---|
[468] | 1800 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1801 | {
|
---|
| 1802 | return mViewCells;
|
---|
| 1803 | }
|
---|
| 1804 |
|
---|
[485] | 1805 |
|
---|
[487] | 1806 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1807 | {
|
---|
[542] | 1808 | mViewSpaceBox = box;
|
---|
[1074] | 1809 |
|
---|
[1027] | 1810 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1811 | CreateClipPlane();
|
---|
[1027] | 1812 | // the total area of the view space has changed
|
---|
[577] | 1813 | mTotalAreaValid = false;
|
---|
[487] | 1814 | }
|
---|
| 1815 |
|
---|
| 1816 |
|
---|
[660] | 1817 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1818 | {
|
---|
| 1819 | int axis = 0;
|
---|
[667] | 1820 | float pos;
|
---|
[1418] | 1821 | bool orientation;
|
---|
| 1822 | Vector3 absPos;
|
---|
[591] | 1823 |
|
---|
[1004] | 1824 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1825 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1826 |
|
---|
[1418] | 1827 | if (axis < 0)
|
---|
| 1828 | {
|
---|
| 1829 | axis = -axis;
|
---|
| 1830 | orientation = false;
|
---|
| 1831 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 1832 | }
|
---|
| 1833 | else
|
---|
| 1834 | {
|
---|
| 1835 | orientation = true;
|
---|
| 1836 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1837 | }
|
---|
| 1838 |
|
---|
[1416] | 1839 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 1840 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 1841 | }
|
---|
| 1842 |
|
---|
| 1843 |
|
---|
[519] | 1844 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1845 | {
|
---|
[542] | 1846 | return mViewSpaceBox;
|
---|
[519] | 1847 | }
|
---|
| 1848 |
|
---|
| 1849 |
|
---|
[480] | 1850 | void ViewCellsManager::ResetViewCells()
|
---|
| 1851 | {
|
---|
[720] | 1852 | // recollect view cells
|
---|
[480] | 1853 | mViewCells.clear();
|
---|
| 1854 | CollectViewCells();
|
---|
[590] | 1855 |
|
---|
[720] | 1856 | // stats are computed once more
|
---|
[480] | 1857 | EvaluateViewCellsStats();
|
---|
[590] | 1858 |
|
---|
[520] | 1859 | // has to be recomputed
|
---|
[480] | 1860 | mTotalAreaValid = false;
|
---|
| 1861 | }
|
---|
| 1862 |
|
---|
[485] | 1863 |
|
---|
[547] | 1864 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1865 | {
|
---|
| 1866 | return mMaxPvsSize;
|
---|
| 1867 | }
|
---|
| 1868 |
|
---|
[590] | 1869 |
|
---|
[563] | 1870 | void
|
---|
| 1871 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1872 | {
|
---|
| 1873 | if (!ViewCellsConstructed())
|
---|
| 1874 | return;
|
---|
[564] | 1875 |
|
---|
[563] | 1876 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1877 |
|
---|
[563] | 1878 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1879 | AddSampleContributions(*(*it));
|
---|
| 1880 | }
|
---|
| 1881 | }
|
---|
[547] | 1882 |
|
---|
[581] | 1883 |
|
---|
[562] | 1884 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1885 | {
|
---|
| 1886 | return mMinPvsSize;
|
---|
| 1887 | }
|
---|
| 1888 |
|
---|
| 1889 |
|
---|
| 1890 |
|
---|
[561] | 1891 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1892 | {
|
---|
| 1893 | return mMaxPvsRatio;
|
---|
| 1894 | }
|
---|
| 1895 |
|
---|
| 1896 |
|
---|
[563] | 1897 | void
|
---|
| 1898 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1899 | {
|
---|
[563] | 1900 | // assumes viewcells have been stored...
|
---|
| 1901 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1902 | ViewCellContainer::const_iterator it;
|
---|
[1594] | 1903 |
|
---|
| 1904 | if (!ray.mTerminationObject)
|
---|
| 1905 | return;
|
---|
| 1906 |
|
---|
| 1907 | #if USE_KD_PVS
|
---|
| 1908 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 1909 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 1910 | Intersectable *obj =
|
---|
| 1911 | GetPreprocessor()->mKdTree->
|
---|
| 1912 | GetOrCreateKdIntersectable(node);
|
---|
| 1913 | #else
|
---|
| 1914 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 1915 | #endif
|
---|
| 1916 |
|
---|
[563] | 1917 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1918 | ViewCell *viewcell = *it;
|
---|
[569] | 1919 | if (viewcell->GetValid()) {
|
---|
| 1920 | // if ray not outside of view space
|
---|
[1594] | 1921 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[569] | 1922 | }
|
---|
[563] | 1923 | }
|
---|
| 1924 | }
|
---|
[503] | 1925 |
|
---|
[574] | 1926 |
|
---|
[1159] | 1927 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 1928 | const bool addRays,
|
---|
| 1929 | const bool storeViewCells)
|
---|
[563] | 1930 | {
|
---|
[570] | 1931 | ViewCellContainer viewcells;
|
---|
[564] | 1932 |
|
---|
[570] | 1933 | ray.mPvsContribution = 0;
|
---|
| 1934 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1935 |
|
---|
[570] | 1936 | static Ray hray;
|
---|
[564] | 1937 | hray.Init(ray);
|
---|
| 1938 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1939 | //Ray hray(ray);
|
---|
| 1940 |
|
---|
| 1941 | float tmin = 0, tmax = 1.0;
|
---|
| 1942 |
|
---|
| 1943 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1944 | return 0;
|
---|
[564] | 1945 |
|
---|
| 1946 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1947 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1948 |
|
---|
[1291] | 1949 | ViewCell::NewMail();
|
---|
| 1950 |
|
---|
[1006] | 1951 | // traverse the view space subdivision
|
---|
[564] | 1952 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1953 |
|
---|
[574] | 1954 | if (storeViewCells)
|
---|
[1155] | 1955 | { // copy viewcells memory efficiently
|
---|
[570] | 1956 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1957 | ray.mViewCells = viewcells;
|
---|
| 1958 | }
|
---|
[564] | 1959 |
|
---|
[1594] | 1960 | #if USE_KD_PVS
|
---|
| 1961 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 1962 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 1963 | Intersectable *obj =
|
---|
| 1964 | GetPreprocessor()->mKdTree->
|
---|
| 1965 | GetOrCreateKdIntersectable(node);
|
---|
| 1966 | #else
|
---|
| 1967 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 1968 | #endif
|
---|
| 1969 |
|
---|
| 1970 |
|
---|
[570] | 1971 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[1594] | 1972 |
|
---|
[664] | 1973 | for (; it != viewcells.end(); ++ it)
|
---|
| 1974 | {
|
---|
| 1975 | ViewCell *viewcell = *it;
|
---|
[1522] | 1976 |
|
---|
[1528] | 1977 | if (viewcell->GetValid()) // tests if view cell is in valid view space
|
---|
[664] | 1978 | {
|
---|
| 1979 | float contribution;
|
---|
[1291] | 1980 |
|
---|
| 1981 | if (ray.mTerminationObject)
|
---|
[1649] | 1982 | {
|
---|
| 1983 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 1984 | ray.mPdf,
|
---|
| 1985 | contribution))
|
---|
[1582] | 1986 | {
|
---|
[1649] | 1987 | ++ ray.mPvsContribution;
|
---|
| 1988 | ray.mRelativePvsContribution += contribution;
|
---|
[1582] | 1989 | }
|
---|
[664] | 1990 | }
|
---|
[1291] | 1991 |
|
---|
| 1992 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1582] | 1993 |
|
---|
[840] | 1994 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1995 | // made in one direction!!!
|
---|
| 1996 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1582] | 1997 |
|
---|
[666] | 1998 | if (ray.mOriginObject &&
|
---|
| 1999 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 2000 | ray.mPdf,
|
---|
| 2001 | contribution))
|
---|
[1582] | 2002 | {
|
---|
[666] | 2003 | ++ ray.mPvsContribution;
|
---|
[1582] | 2004 | ray.mRelativePvsContribution += contribution;
|
---|
| 2005 | }
|
---|
[718] | 2006 | #endif
|
---|
[664] | 2007 | }
|
---|
[569] | 2008 | }
|
---|
[564] | 2009 |
|
---|
[1528] | 2010 | // if true, the sampled entities are stored in the pvs
|
---|
[664] | 2011 | if (addRays)
|
---|
| 2012 | {
|
---|
| 2013 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 2014 | {
|
---|
| 2015 | ViewCell *viewcell = *it;
|
---|
| 2016 |
|
---|
[706] | 2017 | if (viewcell->GetValid())
|
---|
[664] | 2018 | {
|
---|
[1486] | 2019 | // if view point is valid, add new object to the pvs
|
---|
[1155] | 2020 | if (ray.mTerminationObject)
|
---|
[1545] | 2021 | {
|
---|
[1594] | 2022 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[1159] | 2023 | }
|
---|
[1166] | 2024 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 2025 | if (ray.mOriginObject)
|
---|
[1159] | 2026 | {
|
---|
[666] | 2027 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 2028 | }
|
---|
[718] | 2029 | #endif
|
---|
[664] | 2030 | }
|
---|
| 2031 | }
|
---|
[563] | 2032 | }
|
---|
[570] | 2033 |
|
---|
[1715] | 2034 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 2035 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[468] | 2036 | }
|
---|
| 2037 |
|
---|
| 2038 |
|
---|
[469] | 2039 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 2040 | const int maxSize,
|
---|
[503] | 2041 | VssRayContainer &usedRays,
|
---|
[485] | 2042 | VssRayContainer *savedRays) const
|
---|
[469] | 2043 | {
|
---|
[485] | 2044 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 2045 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 2046 |
|
---|
[485] | 2047 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 2048 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 2049 | {
|
---|
[473] | 2050 | if (Random(1.0f) < prop)
|
---|
[485] | 2051 | usedRays.push_back(*it);
|
---|
| 2052 | else if (savedRays)
|
---|
| 2053 | savedRays->push_back(*it);
|
---|
[469] | 2054 | }
|
---|
| 2055 | }
|
---|
| 2056 |
|
---|
[477] | 2057 |
|
---|
[728] | 2058 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 2059 | {
|
---|
[1709] | 2060 | return (float)mViewCellsTree->GetPvsCost(viewCell);
|
---|
[605] | 2061 | }
|
---|
| 2062 |
|
---|
| 2063 |
|
---|
[477] | 2064 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 2065 | {
|
---|
| 2066 | // if already computed
|
---|
| 2067 | if (mTotalAreaValid)
|
---|
[728] | 2068 | {
|
---|
[470] | 2069 | return mTotalArea;
|
---|
[728] | 2070 | }
|
---|
[470] | 2071 |
|
---|
| 2072 | mTotalArea = 0;
|
---|
| 2073 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2074 |
|
---|
| 2075 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 2076 | {
|
---|
| 2077 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2078 | mTotalArea += GetArea(*it);
|
---|
[480] | 2079 | }
|
---|
| 2080 |
|
---|
[470] | 2081 | mTotalAreaValid = true;
|
---|
| 2082 |
|
---|
| 2083 | return mTotalArea;
|
---|
| 2084 | }
|
---|
| 2085 |
|
---|
[482] | 2086 |
|
---|
[475] | 2087 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2088 | {
|
---|
[660] | 2089 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2090 | }
|
---|
| 2091 |
|
---|
[477] | 2092 |
|
---|
[508] | 2093 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2094 | {
|
---|
[651] | 2095 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2096 | {
|
---|
[651] | 2097 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2098 | }
|
---|
| 2099 | else // no view cells tree, handle view cells "myself"
|
---|
| 2100 | {
|
---|
[1551] | 2101 | int i = 0;
|
---|
| 2102 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2103 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2104 | {
|
---|
[1557] | 2105 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2106 | {
|
---|
[1551] | 2107 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2108 | }
|
---|
[1284] | 2109 | }
|
---|
| 2110 | }
|
---|
[508] | 2111 | }
|
---|
| 2112 |
|
---|
[1416] | 2113 |
|
---|
| 2114 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2115 | const AxisAlignedBox3 *sceneBox,
|
---|
[1571] | 2116 | const AxisAlignedPlane *clipPlane,
|
---|
| 2117 | const bool colorCode
|
---|
[1416] | 2118 | ) const
|
---|
[508] | 2119 | {
|
---|
[482] | 2120 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2121 |
|
---|
| 2122 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2123 | {
|
---|
[574] | 2124 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2125 | {
|
---|
[1571] | 2126 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2127 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2128 | }
|
---|
[482] | 2129 | }
|
---|
| 2130 | }
|
---|
| 2131 |
|
---|
| 2132 |
|
---|
[517] | 2133 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2134 | {
|
---|
| 2135 | // convert to meshes
|
---|
| 2136 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2137 |
|
---|
| 2138 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2139 | {
|
---|
[517] | 2140 | if (!(*it)->GetMesh())
|
---|
[1001] | 2141 | {
|
---|
[517] | 2142 | CreateMesh(*it);
|
---|
[1001] | 2143 | }
|
---|
[503] | 2144 | }
|
---|
| 2145 | }
|
---|
| 2146 |
|
---|
[508] | 2147 |
|
---|
[944] | 2148 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2149 | const bool exportPvs,
|
---|
| 2150 | const ObjectContainer &objects)
|
---|
[564] | 2151 | {
|
---|
[508] | 2152 | return false;
|
---|
| 2153 | }
|
---|
| 2154 |
|
---|
| 2155 |
|
---|
[610] | 2156 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2157 | {
|
---|
[610] | 2158 | mNumActiveViewCells = n;
|
---|
| 2159 | mViewCells.clear();
|
---|
[1545] | 2160 | // implemented in subclasses
|
---|
[610] | 2161 | CollectViewCells();
|
---|
| 2162 | }
|
---|
[508] | 2163 |
|
---|
| 2164 |
|
---|
[1707] | 2165 | void ViewCellsManager::SetViewCellActive(ViewCell *vc) const
|
---|
| 2166 | {
|
---|
| 2167 | ViewCellContainer leaves;
|
---|
| 2168 | // sets the pointers to the currently active view cells
|
---|
| 2169 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2170 |
|
---|
| 2171 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2172 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2173 | {
|
---|
| 2174 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(vc);
|
---|
| 2175 | }
|
---|
| 2176 | }
|
---|
| 2177 |
|
---|
| 2178 |
|
---|
[660] | 2179 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2180 | {
|
---|
[1707] | 2181 | // collect leaf view cells and set the pointers to
|
---|
| 2182 | // the currently active view cells
|
---|
[660] | 2183 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2184 |
|
---|
[660] | 2185 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2186 | {
|
---|
[1707] | 2187 | SetViewCellActive(*it);
|
---|
[660] | 2188 | }
|
---|
| 2189 | }
|
---|
[508] | 2190 |
|
---|
[840] | 2191 |
|
---|
| 2192 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2193 | {
|
---|
| 2194 | return mMaxFilterSize;
|
---|
| 2195 | }
|
---|
| 2196 |
|
---|
[1001] | 2197 |
|
---|
[840] | 2198 | static const bool USE_ASCII = true;
|
---|
| 2199 |
|
---|
[1001] | 2200 |
|
---|
[840] | 2201 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2202 | const ObjectContainer &objects) const
|
---|
| 2203 | {
|
---|
| 2204 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2205 |
|
---|
| 2206 | if (USE_ASCII)
|
---|
| 2207 | {
|
---|
| 2208 | ofstream boxesOut(filename.c_str());
|
---|
| 2209 | if (!boxesOut.is_open())
|
---|
| 2210 | return false;
|
---|
| 2211 |
|
---|
| 2212 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2213 | {
|
---|
| 2214 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2215 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2216 |
|
---|
| 2217 | boxesOut << mi->GetId() << " "
|
---|
| 2218 | << box.Min().x << " "
|
---|
| 2219 | << box.Min().y << " "
|
---|
| 2220 | << box.Min().z << " "
|
---|
| 2221 | << box.Max().x << " "
|
---|
| 2222 | << box.Max().y << " "
|
---|
| 2223 | << box.Max().z << endl;
|
---|
| 2224 | }
|
---|
| 2225 |
|
---|
| 2226 | boxesOut.close();
|
---|
| 2227 | }
|
---|
| 2228 | else
|
---|
| 2229 | {
|
---|
| 2230 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2231 |
|
---|
| 2232 | if (!boxesOut.is_open())
|
---|
| 2233 | return false;
|
---|
| 2234 |
|
---|
| 2235 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2236 | {
|
---|
| 2237 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2238 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2239 | Vector3 bmin = box.Min();
|
---|
| 2240 | Vector3 bmax = box.Max();
|
---|
[850] | 2241 | int id = mi->GetId();
|
---|
[840] | 2242 |
|
---|
[850] | 2243 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2244 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2245 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2246 | }
|
---|
| 2247 |
|
---|
| 2248 | boxesOut.close();
|
---|
| 2249 | }
|
---|
| 2250 |
|
---|
| 2251 | return true;
|
---|
| 2252 | }
|
---|
| 2253 |
|
---|
| 2254 |
|
---|
[850] | 2255 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2256 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2257 | {
|
---|
[850] | 2258 | Vector3 bmin, bmax;
|
---|
| 2259 | int id;
|
---|
[840] | 2260 |
|
---|
[850] | 2261 | if (USE_ASCII)
|
---|
[840] | 2262 | {
|
---|
[850] | 2263 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2264 |
|
---|
[850] | 2265 | if (!boxesIn.is_open())
|
---|
[840] | 2266 | {
|
---|
[850] | 2267 | cout << "failed to open file " << filename << endl;
|
---|
| 2268 | return false;
|
---|
[840] | 2269 | }
|
---|
[850] | 2270 |
|
---|
| 2271 | string buf;
|
---|
| 2272 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2273 | {
|
---|
[850] | 2274 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2275 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2276 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2277 |
|
---|
| 2278 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2279 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2280 | // HACK: set bounding box to new box
|
---|
| 2281 | //mi->mBox = box;
|
---|
| 2282 |
|
---|
| 2283 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2284 | }
|
---|
| 2285 |
|
---|
[850] | 2286 | boxesIn.close();
|
---|
[840] | 2287 | }
|
---|
[850] | 2288 | else
|
---|
[840] | 2289 | {
|
---|
[850] | 2290 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2291 |
|
---|
[850] | 2292 | if (!boxesIn.is_open())
|
---|
| 2293 | return false;
|
---|
| 2294 |
|
---|
| 2295 | while (1)
|
---|
[840] | 2296 | {
|
---|
[850] | 2297 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2298 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2299 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2300 |
|
---|
| 2301 | if (boxesIn.eof())
|
---|
| 2302 | break;
|
---|
| 2303 |
|
---|
| 2304 |
|
---|
| 2305 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2306 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2307 |
|
---|
| 2308 | // HACK: set bounding box to new box
|
---|
| 2309 | //mi->mBox = box;
|
---|
| 2310 | //boxes.push_back(mi);
|
---|
| 2311 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2312 | }
|
---|
| 2313 |
|
---|
[850] | 2314 | boxesIn.close();
|
---|
[840] | 2315 | }
|
---|
| 2316 |
|
---|
| 2317 | return true;
|
---|
[850] | 2318 | }
|
---|
[840] | 2319 |
|
---|
[931] | 2320 |
|
---|
| 2321 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2322 | {
|
---|
| 2323 | return mFilterWidth;
|
---|
| 2324 | }
|
---|
| 2325 |
|
---|
| 2326 |
|
---|
| 2327 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2328 | {
|
---|
| 2329 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2330 | }
|
---|
| 2331 |
|
---|
| 2332 |
|
---|
[1168] | 2333 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
[1709] | 2334 | const float pvsCost,
|
---|
[1168] | 2335 | const int entriesInPvs) const
|
---|
[1002] | 2336 | {
|
---|
[1709] | 2337 | vc->mPvsCost = pvsCost;
|
---|
[1160] | 2338 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2339 |
|
---|
[1002] | 2340 | vc->mPvsSizeValid = true;
|
---|
| 2341 | }
|
---|
| 2342 |
|
---|
| 2343 |
|
---|
[1021] | 2344 | void
|
---|
| 2345 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2346 | KdTree *kdTree,
|
---|
| 2347 | const float viewSpaceFilterSize,
|
---|
| 2348 | const float spatialFilterSize,
|
---|
| 2349 | ObjectPvs &pvs
|
---|
| 2350 | )
|
---|
| 2351 | {
|
---|
| 2352 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2353 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2354 | // in the pvs
|
---|
| 2355 |
|
---|
| 2356 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2357 | // and compute the pvs union
|
---|
| 2358 |
|
---|
| 2359 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2360 | // Vector3 center = m->mBox.Center();
|
---|
[1679] | 2361 |
|
---|
| 2362 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2363 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2364 | if (!ViewCellsConstructed())
|
---|
| 2365 | return;
|
---|
| 2366 |
|
---|
[1679] | 2367 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
[1021] | 2368 |
|
---|
[1679] | 2369 | const bool usePrVS = false;
|
---|
[1021] | 2370 |
|
---|
[1679] | 2371 | if (!usePrVS) {
|
---|
| 2372 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2373 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
[1021] | 2374 |
|
---|
[1679] | 2375 | ViewCellContainer viewCells;
|
---|
| 2376 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2377 |
|
---|
| 2378 | // cout<<"box="<<box<<endl;
|
---|
| 2379 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2380 |
|
---|
| 2381 | int i;
|
---|
| 2382 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2383 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2384 | pvs.Merge((*it)->GetPvs());
|
---|
| 2385 | }
|
---|
| 2386 | } else {
|
---|
| 2387 | PrVs prvs;
|
---|
| 2388 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2389 |
|
---|
| 2390 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2391 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2392 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2393 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2394 | }
|
---|
| 2395 | } else
|
---|
| 2396 | pvs = viewCell->GetPvs();
|
---|
| 2397 |
|
---|
| 2398 | if (spatialFilterSize >=0.0f)
|
---|
| 2399 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2400 |
|
---|
[1021] | 2401 | }
|
---|
| 2402 |
|
---|
| 2403 |
|
---|
| 2404 |
|
---|
| 2405 | void
|
---|
| 2406 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2407 | const float relViewSpaceFilterSize,
|
---|
| 2408 | const float relSpatialFilterSize
|
---|
| 2409 | )
|
---|
| 2410 | {
|
---|
| 2411 |
|
---|
| 2412 | if (!ViewCellsConstructed())
|
---|
| 2413 | return;
|
---|
| 2414 |
|
---|
[1679] | 2415 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[1021] | 2416 |
|
---|
[1679] | 2417 | ObjectPvs *newPvs;
|
---|
| 2418 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
[1021] | 2419 |
|
---|
[1679] | 2420 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2421 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
[1715] | 2422 |
|
---|
[1679] | 2423 | int i;
|
---|
| 2424 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2425 | ApplyFilter(*it,
|
---|
| 2426 | kdTree,
|
---|
| 2427 | viewSpaceFilterSize,
|
---|
| 2428 | spatialFilterSize,
|
---|
| 2429 | newPvs[i]
|
---|
| 2430 | );
|
---|
[1679] | 2431 | }
|
---|
[1715] | 2432 |
|
---|
[1679] | 2433 | // now replace all pvss
|
---|
| 2434 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
[1715] | 2435 |
|
---|
| 2436 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2437 | pvs.Clear();
|
---|
| 2438 | pvs = newPvs[i];
|
---|
| 2439 | newPvs[i].Clear();
|
---|
[1679] | 2440 | }
|
---|
[1021] | 2441 |
|
---|
[1679] | 2442 | delete [] newPvs;
|
---|
| 2443 | }
|
---|
[1021] | 2444 |
|
---|
[1679] | 2445 |
|
---|
[1021] | 2446 | void
|
---|
| 2447 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2448 | KdTree *kdTree,
|
---|
| 2449 | const float spatialFilterSize,
|
---|
| 2450 | ObjectPvs &pvs
|
---|
| 2451 | )
|
---|
| 2452 | {
|
---|
[1716] | 2453 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2454 | // extended boxes of visible objects
|
---|
| 2455 | Intersectable::NewMail();
|
---|
| 2456 |
|
---|
| 2457 | ObjectPvsMap::const_iterator oi;
|
---|
| 2458 |
|
---|
[1189] | 2459 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi)
|
---|
[1716] | 2460 | {
|
---|
[1189] | 2461 | Intersectable *object = (*oi).first;
|
---|
| 2462 | object->Mail();
|
---|
[1716] | 2463 | }
|
---|
[1021] | 2464 |
|
---|
| 2465 | ObjectPvs nPvs;
|
---|
[1189] | 2466 | int nPvsSize = 0;
|
---|
[1021] | 2467 | // now go through the pvs again
|
---|
| 2468 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2469 | Intersectable *object = (*oi).first;
|
---|
| 2470 |
|
---|
| 2471 | // Vector3 center = object->GetBox().Center();
|
---|
| 2472 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2473 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2474 |
|
---|
| 2475 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2476 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
[1716] | 2477 |
|
---|
[1021] | 2478 | ObjectContainer objects;
|
---|
[1716] | 2479 |
|
---|
[1021] | 2480 | // $$ warning collect objects takes only unmailed ones!
|
---|
[1586] | 2481 | kdTree->CollectObjects(box, objects);
|
---|
[1021] | 2482 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2483 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
[1586] | 2484 | for (; noi != objects.end(); ++ noi)
|
---|
| 2485 | {
|
---|
| 2486 | Intersectable *o = *noi;
|
---|
| 2487 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2488 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2489 | nPvsSize ++;
|
---|
[1021] | 2490 | }
|
---|
| 2491 | }
|
---|
| 2492 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2493 | pvs.Merge(nPvs);
|
---|
| 2494 | }
|
---|
| 2495 |
|
---|
| 2496 |
|
---|
[1715] | 2497 | void
|
---|
| 2498 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
| 2499 | KdTree *kdTree,
|
---|
| 2500 | const float filterSize,
|
---|
| 2501 | ObjectPvs &pvs
|
---|
| 2502 | )
|
---|
| 2503 | {
|
---|
[1716] | 2504 | Vector3 center = viewCell->GetBox().Center();
|
---|
| 2505 | // first determine the average size of the filter
|
---|
[1715] | 2506 |
|
---|
| 2507 |
|
---|
| 2508 |
|
---|
[1716] | 2509 | Intersectable::NewMail();
|
---|
| 2510 | ObjectPvsMap::const_iterator oi;
|
---|
| 2511 | // first mark all object from this pvs
|
---|
| 2512 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi) {
|
---|
| 2513 | Intersectable *object = (*oi).first;
|
---|
| 2514 | object->Mail();
|
---|
| 2515 | }
|
---|
| 2516 |
|
---|
| 2517 | ObjectPvs nPvs;
|
---|
| 2518 | int pvsSize = 0;
|
---|
| 2519 | int nPvsSize = 0;
|
---|
| 2520 | int samples = pvs.mSamples;
|
---|
| 2521 |
|
---|
| 2522 |
|
---|
| 2523 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi, pvsSize++) {
|
---|
| 2524 | Intersectable *object = (*oi).first;
|
---|
| 2525 | // compute filter size based on the distance and the numebr of samples
|
---|
| 2526 | float distance = Distance(center, object->GetBox().Center());
|
---|
| 2527 |
|
---|
| 2528 | // now compute the filter size
|
---|
| 2529 | float radius = distance*(filterSize/(4*samples));
|
---|
| 2530 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2531 | box.Enlarge(Vector3(radius));
|
---|
| 2532 |
|
---|
| 2533 | ObjectContainer objects;
|
---|
| 2534 | // $$ warning collect objects takes only unmailed ones!
|
---|
| 2535 | // should use VspOsp!!
|
---|
| 2536 | kdTree->CollectObjects(box, objects);
|
---|
| 2537 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2538 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
| 2539 | for (; noi != objects.end(); ++ noi) {
|
---|
| 2540 | Intersectable *o = *noi;
|
---|
| 2541 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2542 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2543 | nPvsSize ++;
|
---|
| 2544 | }
|
---|
| 2545 | }
|
---|
| 2546 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2547 | pvs.Merge(nPvs);
|
---|
[1715] | 2548 | }
|
---|
| 2549 |
|
---|
[1716] | 2550 |
|
---|
[1715] | 2551 |
|
---|
[1716] | 2552 |
|
---|
| 2553 |
|
---|
[1571] | 2554 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2555 | ViewCell *vc,
|
---|
| 2556 | bool colorCode) const
|
---|
[1021] | 2557 | {
|
---|
| 2558 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2559 |
|
---|
| 2560 | float importance = 0;
|
---|
| 2561 | static Material m;
|
---|
| 2562 |
|
---|
| 2563 | switch (mColorCode)
|
---|
| 2564 | {
|
---|
| 2565 | case 0: // Random
|
---|
| 2566 | {
|
---|
| 2567 | if (vcValid)
|
---|
| 2568 | {
|
---|
| 2569 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2570 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2571 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2572 | }
|
---|
| 2573 | else
|
---|
| 2574 | {
|
---|
| 2575 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2576 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2577 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2578 | }
|
---|
| 2579 |
|
---|
| 2580 | exporter->SetForcedMaterial(m);
|
---|
| 2581 | return;
|
---|
| 2582 | }
|
---|
| 2583 |
|
---|
| 2584 | case 1: // pvs
|
---|
| 2585 | {
|
---|
| 2586 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2587 | {
|
---|
| 2588 | importance =
|
---|
[1709] | 2589 | (float)mViewCellsTree->GetPvsCost(vc) /
|
---|
[1121] | 2590 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2591 | }
|
---|
[1021] | 2592 | }
|
---|
| 2593 | break;
|
---|
| 2594 | case 2: // merges
|
---|
| 2595 | {
|
---|
| 2596 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2597 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2598 | }
|
---|
| 2599 | break;
|
---|
| 2600 | #if 0
|
---|
| 2601 | case 3: // merge tree differene
|
---|
| 2602 | {
|
---|
| 2603 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2604 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2605 |
|
---|
| 2606 | }
|
---|
| 2607 | break;
|
---|
| 2608 | #endif
|
---|
| 2609 | default:
|
---|
| 2610 | break;
|
---|
| 2611 | }
|
---|
| 2612 |
|
---|
| 2613 | // special color code for invalid view cells
|
---|
| 2614 | m.mDiffuseColor.r = importance;
|
---|
| 2615 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2616 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2617 |
|
---|
| 2618 | //Debug << "importance: " << importance << endl;
|
---|
| 2619 | exporter->SetForcedMaterial(m);
|
---|
| 2620 | }
|
---|
| 2621 |
|
---|
| 2622 |
|
---|
[1022] | 2623 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2624 | vector<MergeCandidate> &candidates)
|
---|
| 2625 | {
|
---|
| 2626 | // implemented in subclasses
|
---|
| 2627 | }
|
---|
| 2628 |
|
---|
[1047] | 2629 |
|
---|
[1608] | 2630 | void
|
---|
| 2631 | ViewCellsManager::UpdatePvsForEvaluation()
|
---|
| 2632 | {
|
---|
| 2633 | ObjectPvs objPvs;
|
---|
| 2634 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
| 2635 | }
|
---|
| 2636 |
|
---|
[1168] | 2637 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2638 | {
|
---|
| 2639 | // terminate traversal
|
---|
| 2640 | if (root->IsLeaf())
|
---|
| 2641 | {
|
---|
[1709] | 2642 | //cout << "updating leaf" << endl;
|
---|
[1168] | 2643 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2644 | pvs = root->GetPvs();
|
---|
[1707] | 2645 | UpdateScalarPvsSize(root, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2646 | return;
|
---|
| 2647 | }
|
---|
[1709] | 2648 |
|
---|
| 2649 | //cout << "recursivly updating pvs" << endl;
|
---|
| 2650 |
|
---|
[1586] | 2651 | ////////////////
|
---|
| 2652 | //-- interior node => propagate pvs up the tree
|
---|
| 2653 |
|
---|
[1168] | 2654 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 2655 |
|
---|
| 2656 | // reset interior pvs
|
---|
[1168] | 2657 | interior->GetPvs().Clear();
|
---|
[1606] | 2658 | // reset recursive pvs
|
---|
[1168] | 2659 | pvs.Clear();
|
---|
[1695] | 2660 |
|
---|
| 2661 | // pvss of child nodes
|
---|
[1168] | 2662 | vector<ObjectPvs> pvsList;
|
---|
[1709] | 2663 | pvsList.resize((int)interior->mChildren.size());
|
---|
[1168] | 2664 |
|
---|
| 2665 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
[1709] | 2666 |
|
---|
[1695] | 2667 | int i = 0;
|
---|
[1709] | 2668 |
|
---|
[1695] | 2669 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[1168] | 2670 | {
|
---|
[1586] | 2671 | //////////////////
|
---|
[1168] | 2672 | //-- recursivly compute child pvss
|
---|
[1695] | 2673 | UpdatePvsForEvaluation(*vit, pvsList[i]/*objPvs*/);
|
---|
[1168] | 2674 | }
|
---|
| 2675 |
|
---|
| 2676 | #if 1
|
---|
| 2677 | Intersectable::NewMail();
|
---|
| 2678 |
|
---|
| 2679 | //-- faster way of computing pvs:
|
---|
[1586] | 2680 | //-- construct merged pvs by adding
|
---|
| 2681 | //-- and only those of the next pvs which were not mailed.
|
---|
| 2682 | //-- note: sumpdf is not correct!!
|
---|
| 2683 |
|
---|
[1168] | 2684 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2685 |
|
---|
| 2686 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2687 | {
|
---|
| 2688 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2689 |
|
---|
| 2690 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2691 | {
|
---|
| 2692 | Intersectable *intersect = (*pit).first;
|
---|
| 2693 |
|
---|
| 2694 | if (!intersect->Mailed())
|
---|
| 2695 | {
|
---|
| 2696 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2697 | intersect->Mail();
|
---|
| 2698 | }
|
---|
| 2699 | }
|
---|
| 2700 | }
|
---|
| 2701 |
|
---|
| 2702 | // store pvs in this node
|
---|
| 2703 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2704 | {
|
---|
| 2705 | interior->SetPvs(pvs);
|
---|
| 2706 | }
|
---|
| 2707 |
|
---|
| 2708 | // set new pvs size
|
---|
[1707] | 2709 | UpdateScalarPvsSize(interior, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
[1168] | 2710 |
|
---|
[1586] | 2711 | #else
|
---|
| 2712 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2713 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2714 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2715 | #endif
|
---|
| 2716 | }
|
---|
| 2717 |
|
---|
[1174] | 2718 |
|
---|
| 2719 |
|
---|
[1145] | 2720 | /*******************************************************************/
|
---|
| 2721 | /* BspViewCellsManager implementation */
|
---|
| 2722 | /*******************************************************************/
|
---|
[440] | 2723 |
|
---|
[482] | 2724 |
|
---|
[1264] | 2725 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 2726 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 2727 | {
|
---|
[1004] | 2728 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[1640] | 2729 |
|
---|
[587] | 2730 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 2731 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 2732 | }
|
---|
| 2733 |
|
---|
[462] | 2734 |
|
---|
[440] | 2735 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2736 | {
|
---|
| 2737 | return mBspTree->GetRoot() != NULL;
|
---|
| 2738 | }
|
---|
| 2739 |
|
---|
[480] | 2740 |
|
---|
[440] | 2741 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2742 | {
|
---|
| 2743 | return new BspViewCell(mesh);
|
---|
| 2744 | }
|
---|
| 2745 |
|
---|
[480] | 2746 |
|
---|
[574] | 2747 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2748 | const VssRayContainer &rays)
|
---|
[440] | 2749 | {
|
---|
[1545] | 2750 | // if view cells were already constructed, we can finish
|
---|
[440] | 2751 | if (ViewCellsConstructed())
|
---|
| 2752 | return 0;
|
---|
| 2753 |
|
---|
| 2754 | int sampleContributions = 0;
|
---|
[503] | 2755 |
|
---|
[469] | 2756 | // construct view cells using the collected samples
|
---|
| 2757 | RayContainer constructionRays;
|
---|
| 2758 | VssRayContainer savedRays;
|
---|
[440] | 2759 |
|
---|
[1563] | 2760 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 2761 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 2762 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2763 |
|
---|
[473] | 2764 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 2765 |
|
---|
[469] | 2766 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2767 | {
|
---|
[473] | 2768 | if (Random(1.0f) < prop)
|
---|
[469] | 2769 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2770 | else
|
---|
| 2771 | savedRays.push_back(*it);
|
---|
| 2772 | }
|
---|
[440] | 2773 |
|
---|
[1545] | 2774 | if (!mUsePredefinedViewCells)
|
---|
[503] | 2775 | {
|
---|
| 2776 | // no view cells loaded
|
---|
[587] | 2777 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2778 | // collect final view cells
|
---|
| 2779 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2780 | }
|
---|
[469] | 2781 | else
|
---|
[1551] | 2782 | {
|
---|
[1545] | 2783 | // use predefined view cells geometry =>
|
---|
| 2784 | // contruct bsp hierarchy over them
|
---|
[469] | 2785 | mBspTree->Construct(mViewCells);
|
---|
| 2786 | }
|
---|
| 2787 |
|
---|
| 2788 | // destroy rays created only for construction
|
---|
| 2789 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2790 |
|
---|
[440] | 2791 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 2792 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2793 |
|
---|
[469] | 2794 | // recast rest of the rays
|
---|
[649] | 2795 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2796 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2797 |
|
---|
[719] | 2798 | // real meshes are contructed at this stage
|
---|
| 2799 | if (0)
|
---|
| 2800 | {
|
---|
| 2801 | cout << "finalizing view cells ... ";
|
---|
| 2802 | FinalizeViewCells(true);
|
---|
| 2803 | cout << "finished" << endl;
|
---|
| 2804 | }
|
---|
| 2805 |
|
---|
[440] | 2806 | return sampleContributions;
|
---|
| 2807 | }
|
---|
| 2808 |
|
---|
[503] | 2809 |
|
---|
[480] | 2810 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 2811 | {
|
---|
[587] | 2812 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 2813 | { // view cells tree constructed
|
---|
[587] | 2814 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2815 | }
|
---|
| 2816 | else
|
---|
[1545] | 2817 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 2818 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 2819 | }
|
---|
[480] | 2820 | }
|
---|
[468] | 2821 |
|
---|
[503] | 2822 |
|
---|
[471] | 2823 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2824 | {
|
---|
[591] | 2825 | if (1)
|
---|
| 2826 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2827 | else
|
---|
[1545] | 2828 | // compute view cell area as subsititute for probability
|
---|
[591] | 2829 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2830 | }
|
---|
[440] | 2831 |
|
---|
[503] | 2832 |
|
---|
[440] | 2833 |
|
---|
[468] | 2834 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2835 | const Vector3 &termination,
|
---|
| 2836 | ViewCellContainer &viewcells)
|
---|
[440] | 2837 | {
|
---|
[468] | 2838 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2839 | }
|
---|
| 2840 |
|
---|
| 2841 |
|
---|
[1551] | 2842 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 2843 | {
|
---|
| 2844 | // save color code
|
---|
| 2845 | const int savedColorCode = mColorCode;
|
---|
| 2846 |
|
---|
| 2847 | // export merged view cells
|
---|
| 2848 | mColorCode = 0; // use random colors
|
---|
| 2849 |
|
---|
| 2850 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
| 2851 |
|
---|
| 2852 | cout << "exporting view cells after merge ... ";
|
---|
| 2853 |
|
---|
| 2854 | if (exporter)
|
---|
| 2855 | {
|
---|
| 2856 | if (mExportGeometry)
|
---|
| 2857 | {
|
---|
| 2858 | exporter->ExportGeometry(objects);
|
---|
| 2859 | }
|
---|
| 2860 |
|
---|
| 2861 | exporter->SetFilled();
|
---|
| 2862 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 2863 |
|
---|
| 2864 | delete exporter;
|
---|
| 2865 | }
|
---|
| 2866 | cout << "finished" << endl;
|
---|
| 2867 |
|
---|
| 2868 | // export merged view cells using pvs color coding
|
---|
| 2869 | mColorCode = 1;
|
---|
| 2870 |
|
---|
| 2871 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 2872 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2873 |
|
---|
| 2874 | if (exporter)
|
---|
| 2875 | {
|
---|
| 2876 | if (mExportGeometry)
|
---|
| 2877 | {
|
---|
| 2878 | exporter->ExportGeometry(objects);
|
---|
| 2879 | }
|
---|
| 2880 |
|
---|
| 2881 | exporter->SetFilled();
|
---|
| 2882 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 2883 |
|
---|
| 2884 | delete exporter;
|
---|
| 2885 | }
|
---|
| 2886 | cout << "finished" << endl;
|
---|
| 2887 |
|
---|
| 2888 | mColorCode = savedColorCode;
|
---|
| 2889 | }
|
---|
| 2890 |
|
---|
| 2891 |
|
---|
[503] | 2892 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2893 | const VssRayContainer &rays)
|
---|
| 2894 | {
|
---|
[469] | 2895 | if (!ViewCellsConstructed())
|
---|
[441] | 2896 | {
|
---|
| 2897 | Debug << "view cells not constructed" << endl;
|
---|
| 2898 | return 0;
|
---|
| 2899 | }
|
---|
[590] | 2900 |
|
---|
[1414] | 2901 | // view cells already finished before post processing step,
|
---|
| 2902 | // i.e., because they were loaded from disc
|
---|
[590] | 2903 | if (mViewCellsFinished)
|
---|
| 2904 | {
|
---|
| 2905 | FinalizeViewCells(true);
|
---|
| 2906 | EvaluateViewCellsStats();
|
---|
| 2907 |
|
---|
| 2908 | return 0;
|
---|
| 2909 | }
|
---|
| 2910 |
|
---|
[1444] | 2911 | //////////////////
|
---|
[1414] | 2912 | //-- merge leaves of the view cell hierarchy
|
---|
| 2913 |
|
---|
[649] | 2914 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2915 | long startTime = GetTime();
|
---|
| 2916 |
|
---|
| 2917 | VssRayContainer postProcessRays;
|
---|
| 2918 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2919 |
|
---|
[592] | 2920 | if (mMergeViewCells)
|
---|
[591] | 2921 | {
|
---|
[660] | 2922 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2923 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2924 | }
|
---|
| 2925 | else
|
---|
| 2926 | {
|
---|
[660] | 2927 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 2928 | ViewCell *root;
|
---|
| 2929 | // the spatial merge tree is difficult to build for
|
---|
| 2930 | // this type of construction, as view cells cover several
|
---|
| 2931 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 2932 | if (mUsePredefinedViewCells)
|
---|
| 2933 | {
|
---|
| 2934 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 2935 | }
|
---|
| 2936 | else
|
---|
| 2937 | {
|
---|
| 2938 | // create spatial merge hierarchy
|
---|
| 2939 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2940 | }
|
---|
| 2941 |
|
---|
[752] | 2942 | mViewCellsTree->SetRoot(root);
|
---|
| 2943 |
|
---|
[1415] | 2944 | // recompute pvs in the whole hierarchy
|
---|
[752] | 2945 | ObjectPvs pvs;
|
---|
| 2946 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2947 | }
|
---|
[440] | 2948 |
|
---|
[1415] | 2949 | cout << "finished" << endl;
|
---|
| 2950 | cout << "merged view cells in "
|
---|
| 2951 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 2952 |
|
---|
| 2953 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 2954 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 2955 |
|
---|
| 2956 |
|
---|
[1418] | 2957 | ////////////////////////
|
---|
[1444] | 2958 | //-- visualization and statistics after merge
|
---|
[1415] | 2959 |
|
---|
[666] | 2960 | if (1)
|
---|
| 2961 | {
|
---|
| 2962 | char mstats[100];
|
---|
[1004] | 2963 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2964 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2965 | }
|
---|
[650] | 2966 |
|
---|
[1551] | 2967 | // recompute view cells and stats
|
---|
| 2968 | ResetViewCells();
|
---|
[660] | 2969 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2970 |
|
---|
[1551] | 2971 | // visualization of the view cells
|
---|
[1545] | 2972 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 2973 |
|
---|
[719] | 2974 | // compute final meshes and volume / area
|
---|
| 2975 | if (1) FinalizeViewCells(true);
|
---|
[840] | 2976 |
|
---|
[650] | 2977 | return 0;
|
---|
[440] | 2978 | }
|
---|
| 2979 |
|
---|
[477] | 2980 |
|
---|
| 2981 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2982 | {
|
---|
| 2983 | }
|
---|
| 2984 |
|
---|
| 2985 |
|
---|
[440] | 2986 | int BspViewCellsManager::GetType() const
|
---|
| 2987 | {
|
---|
| 2988 | return BSP;
|
---|
| 2989 | }
|
---|
| 2990 |
|
---|
| 2991 |
|
---|
| 2992 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2993 | const VssRayContainer &sampleRays)
|
---|
[440] | 2994 | {
|
---|
[469] | 2995 | if (!ViewCellsConstructed())
|
---|
| 2996 | return;
|
---|
[574] | 2997 |
|
---|
[1563] | 2998 | const int savedColorCode = mColorCode;
|
---|
[1551] | 2999 |
|
---|
[600] | 3000 | if (1) // export final view cells
|
---|
[440] | 3001 | {
|
---|
[1020] | 3002 | mColorCode = 1; // hack color code
|
---|
[1415] | 3003 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3004 |
|
---|
| 3005 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 3006 |
|
---|
[469] | 3007 | if (exporter)
|
---|
[440] | 3008 | {
|
---|
[600] | 3009 | if (mExportGeometry)
|
---|
[1416] | 3010 | {
|
---|
[600] | 3011 | exporter->ExportGeometry(objects);
|
---|
[1416] | 3012 | }
|
---|
[590] | 3013 |
|
---|
[1416] | 3014 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[469] | 3015 | delete exporter;
|
---|
[440] | 3016 | }
|
---|
[469] | 3017 | cout << "finished" << endl;
|
---|
[503] | 3018 | }
|
---|
[1551] | 3019 |
|
---|
[1545] | 3020 | // reset color code
|
---|
[600] | 3021 | mColorCode = savedColorCode;
|
---|
| 3022 |
|
---|
[1416] | 3023 |
|
---|
| 3024 | //////////////////
|
---|
[469] | 3025 | //-- visualization of the BSP splits
|
---|
[1416] | 3026 |
|
---|
[469] | 3027 | bool exportSplits = false;
|
---|
[1004] | 3028 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 3029 |
|
---|
[469] | 3030 | if (exportSplits)
|
---|
[440] | 3031 | {
|
---|
[469] | 3032 | cout << "exporting splits ... ";
|
---|
[477] | 3033 | ExportSplits(objects);
|
---|
[469] | 3034 | cout << "finished" << endl;
|
---|
[440] | 3035 | }
|
---|
[477] | 3036 |
|
---|
[1570] | 3037 | int leafOut;
|
---|
| 3038 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 3039 | const int raysOut = 100;
|
---|
| 3040 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 3041 | }
|
---|
| 3042 |
|
---|
| 3043 |
|
---|
[477] | 3044 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 3045 | {
|
---|
| 3046 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 3047 |
|
---|
[503] | 3048 | if (exporter)
|
---|
| 3049 | {
|
---|
[598] | 3050 | //exporter->SetFilled();
|
---|
| 3051 | if (mExportGeometry)
|
---|
[1545] | 3052 | {
|
---|
[598] | 3053 | exporter->ExportGeometry(objects);
|
---|
[1545] | 3054 | }
|
---|
[598] | 3055 |
|
---|
[503] | 3056 | Material m;
|
---|
[440] | 3057 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3058 | exporter->SetForcedMaterial(m);
|
---|
| 3059 | exporter->SetWireframe();
|
---|
[503] | 3060 |
|
---|
[440] | 3061 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 3062 |
|
---|
[1545] | 3063 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 3064 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3065 | exporter->SetForcedMaterial(m);
|
---|
[482] | 3066 | //exporter->ResetForcedMaterial();
|
---|
| 3067 |
|
---|
[440] | 3068 | delete exporter;
|
---|
| 3069 | }
|
---|
| 3070 | }
|
---|
| 3071 |
|
---|
[477] | 3072 |
|
---|
[1570] | 3073 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3074 | const int maxViewCells,
|
---|
| 3075 | const bool sortViewCells,
|
---|
| 3076 | const bool exportPvs,
|
---|
| 3077 | const bool exportRays,
|
---|
| 3078 | const int maxRays,
|
---|
| 3079 | const string prefix,
|
---|
| 3080 | VssRayContainer *visRays)
|
---|
[440] | 3081 | {
|
---|
[1570] | 3082 | if (sortViewCells)
|
---|
| 3083 | { // sort view cells to visualize the largest view cells
|
---|
| 3084 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 3085 | }
|
---|
[440] | 3086 |
|
---|
[1545] | 3087 | //////////
|
---|
[1570] | 3088 | //-- some view cells for output
|
---|
[503] | 3089 |
|
---|
[1570] | 3090 | ViewCell::NewMail();
|
---|
| 3091 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 3092 |
|
---|
| 3093 | for (int i = 0; i < limit; ++ i)
|
---|
| 3094 | {
|
---|
| 3095 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 3096 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 3097 |
|
---|
[1570] | 3098 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 3099 | continue;
|
---|
[587] | 3100 |
|
---|
[1570] | 3101 | vc->Mail();
|
---|
[503] | 3102 |
|
---|
[1570] | 3103 | ObjectPvs pvs;
|
---|
| 3104 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 3105 |
|
---|
[1571] | 3106 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 3107 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 3108 |
|
---|
[1709] | 3109 | cout << "view cell " << idx << ": pvs cost=" << (int)mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[582] | 3110 |
|
---|
[1570] | 3111 | if (exportRays)
|
---|
| 3112 | {
|
---|
| 3113 | ////////////
|
---|
| 3114 | //-- export rays piercing this view cell
|
---|
[469] | 3115 |
|
---|
[1571] | 3116 | // use rays stored with the view cells
|
---|
| 3117 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 3118 | VssRayContainer collectRays;
|
---|
| 3119 |
|
---|
| 3120 | // collect initial view cells
|
---|
| 3121 | ViewCellContainer leaves;
|
---|
| 3122 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3123 |
|
---|
| 3124 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 3125 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 3126 | {
|
---|
[1571] | 3127 | // prepare some rays for output
|
---|
[1696] | 3128 | VssRayContainer::const_iterator rit, rit_end = (*vit)->GetOrCreateRays()->end();
|
---|
| 3129 | for (rit = (*vit)->GetOrCreateRays()->begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 3130 | {
|
---|
| 3131 | collectRays.push_back(*rit);
|
---|
| 3132 | }
|
---|
| 3133 | }
|
---|
| 3134 |
|
---|
| 3135 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3136 |
|
---|
[1570] | 3137 | // prepare some rays for output
|
---|
| 3138 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3139 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3140 | {
|
---|
[1570] | 3141 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3142 | if (p < raysOut)
|
---|
[587] | 3143 | {
|
---|
[1571] | 3144 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3145 | {
|
---|
[1571] | 3146 | vcRays.push_back(*rit);
|
---|
[1580] | 3147 | }
|
---|
[1571] | 3148 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 3149 | vcRays2.push_back(*rit);
|
---|
| 3150 | else
|
---|
| 3151 | vcRays3.push_back(*rit);
|
---|
| 3152 |
|
---|
[587] | 3153 | }
|
---|
[477] | 3154 | }
|
---|
[1571] | 3155 |
|
---|
| 3156 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3157 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3158 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3159 | }
|
---|
[1570] | 3160 |
|
---|
| 3161 | ////////////////
|
---|
| 3162 | //-- export view cell geometry
|
---|
[587] | 3163 |
|
---|
[478] | 3164 | exporter->SetWireframe();
|
---|
[477] | 3165 |
|
---|
[478] | 3166 | Material m;//= RandomMaterial();
|
---|
| 3167 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3168 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3169 |
|
---|
[1416] | 3170 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3171 | exporter->SetFilled();
|
---|
[469] | 3172 |
|
---|
[1570] | 3173 | if (exportPvs)
|
---|
[478] | 3174 | {
|
---|
[1570] | 3175 | Intersectable::NewMail();
|
---|
| 3176 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1571] | 3177 |
|
---|
[1570] | 3178 | // output PVS of view cell
|
---|
| 3179 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 3180 | {
|
---|
| 3181 | Intersectable *intersect = (*oit).first;
|
---|
| 3182 |
|
---|
| 3183 | if (!intersect->Mailed())
|
---|
| 3184 | {
|
---|
| 3185 | intersect->Mail();
|
---|
[1571] | 3186 |
|
---|
[1570] | 3187 | m = RandomMaterial();
|
---|
| 3188 | exporter->SetForcedMaterial(m);
|
---|
| 3189 | exporter->ExportIntersectable(intersect);
|
---|
| 3190 | }
|
---|
[503] | 3191 | }
|
---|
[1570] | 3192 | cout << endl;
|
---|
[477] | 3193 | }
|
---|
[1570] | 3194 |
|
---|
[478] | 3195 | DEL_PTR(exporter);
|
---|
| 3196 | cout << "finished" << endl;
|
---|
[477] | 3197 | }
|
---|
[440] | 3198 | }
|
---|
| 3199 |
|
---|
[441] | 3200 |
|
---|
[693] | 3201 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3202 | {
|
---|
| 3203 | ViewCellContainer leaves;
|
---|
| 3204 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3205 |
|
---|
| 3206 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3207 |
|
---|
| 3208 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3209 | float subdivVol = 0;
|
---|
| 3210 | float newVol = 0;
|
---|
| 3211 |
|
---|
| 3212 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3213 | {
|
---|
| 3214 | BspNodeGeometry geom;
|
---|
[1551] | 3215 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3216 |
|
---|
| 3217 | const float lVol = geom.GetVolume();
|
---|
| 3218 | newVol += lVol;
|
---|
| 3219 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3220 |
|
---|
[1551] | 3221 | const float thres = 0.9f;
|
---|
[694] | 3222 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3223 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3224 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3225 | }
|
---|
| 3226 |
|
---|
| 3227 | Debug << "exact volume: " << vol << endl;
|
---|
| 3228 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3229 | Debug << "new volume: " << newVol << endl;
|
---|
| 3230 | }
|
---|
| 3231 |
|
---|
| 3232 |
|
---|
[580] | 3233 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3234 | ViewCell *vc,
|
---|
[1416] | 3235 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3236 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3237 | ) const
|
---|
[1557] | 3238 | {
|
---|
[660] | 3239 | if (clipPlane)
|
---|
[591] | 3240 | {
|
---|
[1047] | 3241 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3242 |
|
---|
[726] | 3243 | ViewCellContainer leaves;
|
---|
| 3244 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3245 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3246 |
|
---|
[726] | 3247 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3248 | {
|
---|
[726] | 3249 | BspNodeGeometry geom;
|
---|
[681] | 3250 | BspNodeGeometry front;
|
---|
| 3251 | BspNodeGeometry back;
|
---|
[591] | 3252 |
|
---|
[1551] | 3253 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3254 |
|
---|
[1563] | 3255 | const float eps = 0.0001f;
|
---|
[1047] | 3256 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3257 |
|
---|
| 3258 | if (cf == -1)
|
---|
| 3259 | {
|
---|
| 3260 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3261 | }
|
---|
| 3262 | else if (cf == 0)
|
---|
| 3263 | {
|
---|
| 3264 | geom.SplitGeometry(front,
|
---|
| 3265 | back,
|
---|
[1047] | 3266 | plane,
|
---|
[726] | 3267 | mViewSpaceBox,
|
---|
| 3268 | eps);
|
---|
[1563] | 3269 |
|
---|
[726] | 3270 | if (back.Valid())
|
---|
[1563] | 3271 | {
|
---|
[726] | 3272 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3273 | }
|
---|
| 3274 | }
|
---|
[681] | 3275 | }
|
---|
[591] | 3276 | }
|
---|
| 3277 | else
|
---|
| 3278 | {
|
---|
[1563] | 3279 | // export mesh if available
|
---|
| 3280 | // TODO: some bug here?
|
---|
| 3281 | if (1 && vc->GetMesh())
|
---|
| 3282 | {
|
---|
| 3283 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3284 | }
|
---|
| 3285 | else
|
---|
| 3286 | {
|
---|
| 3287 | BspNodeGeometry geom;
|
---|
| 3288 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3289 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3290 | }
|
---|
[591] | 3291 | }
|
---|
[482] | 3292 | }
|
---|
| 3293 |
|
---|
[503] | 3294 |
|
---|
| 3295 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3296 | {
|
---|
[1551] | 3297 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3298 | BspNodeGeometry geom;
|
---|
| 3299 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3300 |
|
---|
[1001] | 3301 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3302 |
|
---|
[840] | 3303 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3304 | vc->SetMesh(mesh);
|
---|
[503] | 3305 | }
|
---|
| 3306 |
|
---|
[551] | 3307 |
|
---|
[587] | 3308 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3309 | const bool createMesh)
|
---|
[502] | 3310 | {
|
---|
[587] | 3311 | float area = 0;
|
---|
| 3312 | float volume = 0;
|
---|
[572] | 3313 |
|
---|
[587] | 3314 | ViewCellContainer leaves;
|
---|
| 3315 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3316 |
|
---|
| 3317 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3318 |
|
---|
[693] | 3319 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3320 | {
|
---|
| 3321 | BspNodeGeometry geom;
|
---|
| 3322 |
|
---|
[1551] | 3323 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3324 |
|
---|
[719] | 3325 | const float lVol = geom.GetVolume();
|
---|
| 3326 | const float lArea = geom.GetArea();
|
---|
[693] | 3327 |
|
---|
| 3328 | area += lArea;
|
---|
| 3329 | volume += lVol;
|
---|
[1551] | 3330 |
|
---|
| 3331 | CreateMesh(*it);
|
---|
[587] | 3332 | }
|
---|
| 3333 |
|
---|
| 3334 | viewCell->SetVolume(volume);
|
---|
| 3335 | viewCell->SetArea(area);
|
---|
[502] | 3336 | }
|
---|
| 3337 |
|
---|
[580] | 3338 |
|
---|
[879] | 3339 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3340 | {
|
---|
[1021] | 3341 | if (!ViewCellsConstructed())
|
---|
[1545] | 3342 | {
|
---|
[587] | 3343 | return NULL;
|
---|
[1545] | 3344 | }
|
---|
[587] | 3345 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3346 | {
|
---|
[587] | 3347 | return NULL;
|
---|
[1545] | 3348 | }
|
---|
[587] | 3349 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3350 | }
|
---|
| 3351 |
|
---|
| 3352 |
|
---|
[587] | 3353 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3354 | vector<MergeCandidate> &candidates)
|
---|
| 3355 | {
|
---|
| 3356 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3357 |
|
---|
| 3358 | if (mUseRaysForMerge)
|
---|
| 3359 | {
|
---|
| 3360 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3361 | }
|
---|
| 3362 | else
|
---|
| 3363 | {
|
---|
| 3364 | vector<BspLeaf *> leaves;
|
---|
| 3365 | mBspTree->CollectLeaves(leaves);
|
---|
| 3366 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3367 | }
|
---|
| 3368 |
|
---|
| 3369 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3370 | }
|
---|
| 3371 |
|
---|
| 3372 |
|
---|
[440] | 3373 |
|
---|
[1047] | 3374 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3375 | const bool exportPvs,
|
---|
| 3376 | const ObjectContainer &objects)
|
---|
[590] | 3377 | {
|
---|
[1551] | 3378 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3379 | {
|
---|
| 3380 | return false;
|
---|
| 3381 | }
|
---|
| 3382 |
|
---|
[590] | 3383 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3384 |
|
---|
[1551] | 3385 | OUT_STREAM stream(filename.c_str());
|
---|
| 3386 |
|
---|
[590] | 3387 | // for output we need unique ids for each view cell
|
---|
| 3388 | CreateUniqueViewCellIds();
|
---|
[503] | 3389 |
|
---|
[590] | 3390 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3391 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3392 |
|
---|
[1551] | 3393 | if (exportPvs)
|
---|
| 3394 | {
|
---|
| 3395 | //////////
|
---|
| 3396 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3397 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3398 |
|
---|
[1551] | 3399 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3400 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3401 |
|
---|
[1551] | 3402 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3403 | {
|
---|
[1563] | 3404 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3405 |
|
---|
[1563] | 3406 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3407 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3408 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3409 | }
|
---|
[590] | 3410 |
|
---|
[1551] | 3411 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3412 | }
|
---|
| 3413 |
|
---|
| 3414 | ///////////
|
---|
| 3415 | //-- export the view cells and the pvs
|
---|
| 3416 |
|
---|
| 3417 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3418 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3419 |
|
---|
| 3420 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 3421 |
|
---|
[590] | 3422 | stream << "</ViewCells>" << endl;
|
---|
| 3423 |
|
---|
[1551] | 3424 | /////////////
|
---|
| 3425 | //-- export the view space hierarchy
|
---|
| 3426 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 3427 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3428 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 3429 |
|
---|
[590] | 3430 | mBspTree->Export(stream);
|
---|
| 3431 |
|
---|
[1551] | 3432 | // end tags
|
---|
| 3433 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 3434 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3435 |
|
---|
[1551] | 3436 | stream.close();
|
---|
[590] | 3437 | cout << "finished" << endl;
|
---|
[1551] | 3438 |
|
---|
[590] | 3439 | return true;
|
---|
| 3440 | }
|
---|
| 3441 |
|
---|
| 3442 |
|
---|
[1545] | 3443 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 3444 | {
|
---|
| 3445 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 3446 |
|
---|
| 3447 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3448 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1545] | 3449 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 3450 |
|
---|
| 3451 | float volume = 0;
|
---|
| 3452 | vector<BspLeaf *> leaves;
|
---|
| 3453 | mBspTree->CollectLeaves(leaves);
|
---|
| 3454 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 3455 | ViewCell::NewMail();
|
---|
| 3456 |
|
---|
[1545] | 3457 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 3458 | {
|
---|
| 3459 | BspLeaf *leaf = *lit;
|
---|
| 3460 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 3461 |
|
---|
[1548] | 3462 | if (!vc->Mailed())
|
---|
| 3463 | {
|
---|
| 3464 | vc->Mail();
|
---|
| 3465 | vc->SetMergeCost(0.0f);
|
---|
| 3466 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 3467 |
|
---|
[1548] | 3468 | volume += vc->GetVolume();
|
---|
| 3469 | volume += vc->GetVolume();
|
---|
| 3470 | vcRoot->SetVolume(volume);
|
---|
| 3471 | }
|
---|
[1545] | 3472 | }
|
---|
| 3473 |
|
---|
| 3474 | return vcRoot;
|
---|
| 3475 | }
|
---|
| 3476 |
|
---|
| 3477 |
|
---|
[650] | 3478 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3479 | {
|
---|
[752] | 3480 | // terminate recursion
|
---|
[650] | 3481 | if (root->IsLeaf())
|
---|
| 3482 | {
|
---|
[752] | 3483 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3484 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3485 | return leaf->GetViewCell();
|
---|
[650] | 3486 | }
|
---|
| 3487 |
|
---|
| 3488 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3489 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3490 |
|
---|
[752] | 3491 | // evaluate merge cost for priority traversal
|
---|
[1713] | 3492 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[650] | 3493 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3494 |
|
---|
[650] | 3495 | float volume = 0;
|
---|
[649] | 3496 |
|
---|
[650] | 3497 | BspNode *front = interior->GetFront();
|
---|
| 3498 | BspNode *back = interior->GetBack();
|
---|
[649] | 3499 |
|
---|
[752] | 3500 |
|
---|
[1545] | 3501 | ////////////
|
---|
[752] | 3502 | //-- recursivly compute child hierarchies
|
---|
[1545] | 3503 |
|
---|
[650] | 3504 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3505 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3506 |
|
---|
[752] | 3507 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3508 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3509 |
|
---|
[650] | 3510 | volume += backVc->GetVolume();
|
---|
| 3511 | volume += frontVc->GetVolume();
|
---|
[649] | 3512 |
|
---|
[650] | 3513 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3514 |
|
---|
[650] | 3515 | return viewCellInterior;
|
---|
[610] | 3516 | }
|
---|
| 3517 |
|
---|
[650] | 3518 |
|
---|
[590] | 3519 | /************************************************************************/
|
---|
| 3520 | /* KdViewCellsManager implementation */
|
---|
| 3521 | /************************************************************************/
|
---|
| 3522 |
|
---|
| 3523 |
|
---|
| 3524 |
|
---|
[1264] | 3525 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3526 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3527 | {
|
---|
| 3528 | }
|
---|
| 3529 |
|
---|
[605] | 3530 |
|
---|
[471] | 3531 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3532 | {
|
---|
[479] | 3533 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3534 | if (0)
|
---|
| 3535 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3536 | else
|
---|
| 3537 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3538 | }
|
---|
| 3539 |
|
---|
| 3540 |
|
---|
| 3541 |
|
---|
[479] | 3542 |
|
---|
[480] | 3543 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3544 | {
|
---|
| 3545 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3546 | }
|
---|
[479] | 3547 |
|
---|
[519] | 3548 |
|
---|
[574] | 3549 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3550 | const VssRayContainer &rays)
|
---|
[440] | 3551 | {
|
---|
[441] | 3552 | // if view cells already constructed
|
---|
[440] | 3553 | if (ViewCellsConstructed())
|
---|
| 3554 | return 0;
|
---|
[441] | 3555 |
|
---|
[440] | 3556 | mKdTree->Construct();
|
---|
| 3557 |
|
---|
[480] | 3558 | mTotalAreaValid = false;
|
---|
[469] | 3559 | // create the view cells
|
---|
| 3560 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3561 | // cast rays
|
---|
[574] | 3562 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3563 |
|
---|
[479] | 3564 | EvaluateViewCellsStats();
|
---|
[660] | 3565 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3566 |
|
---|
[440] | 3567 | return 0;
|
---|
| 3568 | }
|
---|
| 3569 |
|
---|
[587] | 3570 |
|
---|
[440] | 3571 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3572 | {
|
---|
| 3573 | return mKdTree->GetRoot() != NULL;
|
---|
| 3574 | }
|
---|
| 3575 |
|
---|
[1020] | 3576 |
|
---|
[503] | 3577 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3578 | const VssRayContainer &rays)
|
---|
[440] | 3579 | {
|
---|
| 3580 | return 0;
|
---|
| 3581 | }
|
---|
| 3582 |
|
---|
[1020] | 3583 |
|
---|
[1570] | 3584 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3585 | const int maxViewCells,
|
---|
| 3586 | const bool sortViewCells,
|
---|
| 3587 | const bool exportPvs,
|
---|
| 3588 | const bool exportRays,
|
---|
| 3589 | const int maxRays,
|
---|
| 3590 | const string prefix,
|
---|
| 3591 | VssRayContainer *visRays)
|
---|
| 3592 | {
|
---|
| 3593 | // TODO
|
---|
| 3594 | }
|
---|
| 3595 |
|
---|
| 3596 |
|
---|
[440] | 3597 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3598 | const VssRayContainer &sampleRays)
|
---|
[440] | 3599 | {
|
---|
[441] | 3600 | if (!ViewCellsConstructed())
|
---|
| 3601 | return;
|
---|
| 3602 |
|
---|
[469] | 3603 | // using view cells instead of the kd PVS of objects
|
---|
| 3604 | const bool useViewCells = true;
|
---|
| 3605 | bool exportRays = false;
|
---|
[440] | 3606 |
|
---|
| 3607 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3608 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3609 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3610 |
|
---|
[469] | 3611 | if (useViewCells)
|
---|
[440] | 3612 | {
|
---|
[469] | 3613 | const int leafOut = 10;
|
---|
[503] | 3614 |
|
---|
[469] | 3615 | ViewCell::NewMail();
|
---|
[503] | 3616 |
|
---|
[469] | 3617 | //-- some rays for output
|
---|
| 3618 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3619 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3620 |
|
---|
| 3621 | //-- some random view cells and rays for output
|
---|
| 3622 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3623 |
|
---|
[469] | 3624 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3625 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3626 |
|
---|
[469] | 3627 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3628 | {
|
---|
[469] | 3629 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3630 | RayContainer vcRays;
|
---|
[503] | 3631 |
|
---|
[469] | 3632 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3633 | #if 0
|
---|
[469] | 3634 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3635 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3636 | {
|
---|
[469] | 3637 | Ray *ray = sampleRays[k];
|
---|
[503] | 3638 |
|
---|
[469] | 3639 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3640 | {
|
---|
| 3641 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3642 |
|
---|
| 3643 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3644 | {
|
---|
| 3645 | vcRays.push_back(ray);
|
---|
| 3646 | }
|
---|
| 3647 | }
|
---|
[479] | 3648 | }
|
---|
[503] | 3649 | #endif
|
---|
[469] | 3650 | Intersectable::NewMail();
|
---|
[503] | 3651 |
|
---|
[469] | 3652 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 3653 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 3654 |
|
---|
[1570] | 3655 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3656 | exporter->SetFilled();
|
---|
| 3657 |
|
---|
| 3658 | exporter->SetWireframe();
|
---|
| 3659 | //exporter->SetFilled();
|
---|
[503] | 3660 |
|
---|
[469] | 3661 | Material m;//= RandomMaterial();
|
---|
| 3662 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3663 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3664 |
|
---|
[469] | 3665 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3666 | exporter->ExportBox(box);
|
---|
| 3667 |
|
---|
| 3668 | // export rays piercing this view cell
|
---|
[503] | 3669 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3670 |
|
---|
[469] | 3671 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3672 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3673 |
|
---|
[469] | 3674 | // exporter->SetWireframe();
|
---|
| 3675 | exporter->SetFilled();
|
---|
[503] | 3676 |
|
---|
[469] | 3677 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3678 | // -- output PVS of view cell
|
---|
[1189] | 3679 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3680 | {
|
---|
| 3681 | Intersectable *intersect = (*it).first;
|
---|
| 3682 | if (!intersect->Mailed())
|
---|
| 3683 | {
|
---|
| 3684 | exporter->ExportIntersectable(intersect);
|
---|
| 3685 | intersect->Mail();
|
---|
[503] | 3686 | }
|
---|
[440] | 3687 | }
|
---|
[503] | 3688 |
|
---|
[469] | 3689 | DEL_PTR(exporter);
|
---|
| 3690 | cout << "finished" << endl;
|
---|
[440] | 3691 | }
|
---|
[469] | 3692 |
|
---|
| 3693 | DEL_PTR(rays);
|
---|
[440] | 3694 | }
|
---|
[469] | 3695 | else // using kd PVS of objects
|
---|
| 3696 | {
|
---|
| 3697 | for (int i = 0; i < limit; ++ i)
|
---|
| 3698 | {
|
---|
| 3699 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3700 |
|
---|
[469] | 3701 | // check whether we can add this to the rays
|
---|
[503] | 3702 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3703 | {
|
---|
| 3704 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3705 | {
|
---|
| 3706 | rays[j].push_back(ray);
|
---|
| 3707 | }
|
---|
| 3708 | }
|
---|
| 3709 | }
|
---|
[440] | 3710 |
|
---|
[503] | 3711 | if (exportRays)
|
---|
[469] | 3712 | {
|
---|
| 3713 | Exporter *exporter = NULL;
|
---|
| 3714 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3715 | exporter->SetWireframe();
|
---|
| 3716 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3717 |
|
---|
[728] | 3718 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3719 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3720 |
|
---|
| 3721 | exporter->SetFilled();
|
---|
| 3722 | delete exporter;
|
---|
| 3723 | }
|
---|
[440] | 3724 |
|
---|
[503] | 3725 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3726 | {
|
---|
| 3727 | Intersectable *object = objects[k];
|
---|
[1570] | 3728 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[440] | 3729 |
|
---|
[1570] | 3730 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3731 | exporter->SetWireframe();
|
---|
[503] | 3732 |
|
---|
[1233] | 3733 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 3734 | Intersectable::NewMail();
|
---|
[503] | 3735 |
|
---|
[469] | 3736 | // avoid adding the object to the list
|
---|
| 3737 | object->Mail();
|
---|
| 3738 | ObjectContainer visibleObjects;
|
---|
[503] | 3739 |
|
---|
[1233] | 3740 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3741 | {
|
---|
[1233] | 3742 | KdNode *node = (*kit).first;
|
---|
[469] | 3743 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3744 |
|
---|
[469] | 3745 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3746 | }
|
---|
[503] | 3747 |
|
---|
[469] | 3748 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3749 | exporter->SetFilled();
|
---|
[503] | 3750 |
|
---|
[469] | 3751 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3752 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3753 |
|
---|
[469] | 3754 | Material m;
|
---|
| 3755 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3756 | exporter->SetForcedMaterial(m);
|
---|
| 3757 | exporter->ExportIntersectable(object);
|
---|
[503] | 3758 |
|
---|
[469] | 3759 | delete exporter;
|
---|
[440] | 3760 | }
|
---|
[503] | 3761 | }
|
---|
[440] | 3762 | }
|
---|
| 3763 |
|
---|
[469] | 3764 |
|
---|
[580] | 3765 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3766 | {
|
---|
| 3767 | return new KdViewCell(mesh);
|
---|
| 3768 | }
|
---|
[482] | 3769 |
|
---|
[580] | 3770 |
|
---|
| 3771 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3772 | ViewCell *vc,
|
---|
[1416] | 3773 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3774 | const AxisAlignedPlane *clipPlane
|
---|
| 3775 | ) const
|
---|
[482] | 3776 | {
|
---|
[580] | 3777 | ViewCellContainer leaves;
|
---|
| 3778 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3779 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3780 |
|
---|
| 3781 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3782 | {
|
---|
| 3783 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 3784 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 3785 | }
|
---|
[482] | 3786 | }
|
---|
| 3787 |
|
---|
| 3788 |
|
---|
[440] | 3789 | int KdViewCellsManager::GetType() const
|
---|
| 3790 | {
|
---|
| 3791 | return ViewCellsManager::KD;
|
---|
| 3792 | }
|
---|
| 3793 |
|
---|
| 3794 |
|
---|
[441] | 3795 |
|
---|
[440] | 3796 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3797 | {
|
---|
| 3798 | KdNode *node = leaf;
|
---|
| 3799 |
|
---|
| 3800 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3801 | node = node->mParent;
|
---|
[1176] | 3802 |
|
---|
[440] | 3803 | return node;
|
---|
| 3804 | }
|
---|
| 3805 |
|
---|
[469] | 3806 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3807 | const Vector3 &termination,
|
---|
| 3808 | ViewCellContainer &viewcells)
|
---|
[466] | 3809 | {
|
---|
[469] | 3810 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3811 | }
|
---|
| 3812 |
|
---|
[469] | 3813 |
|
---|
[503] | 3814 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3815 | {
|
---|
[551] | 3816 | // TODO
|
---|
[503] | 3817 | }
|
---|
| 3818 |
|
---|
[580] | 3819 |
|
---|
| 3820 |
|
---|
| 3821 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3822 | vector<MergeCandidate> &candidates)
|
---|
| 3823 | {
|
---|
| 3824 | // TODO
|
---|
| 3825 | }
|
---|
| 3826 |
|
---|
[1021] | 3827 |
|
---|
| 3828 |
|
---|
[503] | 3829 | /**************************************************************************/
|
---|
| 3830 | /* VspBspViewCellsManager implementation */
|
---|
| 3831 | /**************************************************************************/
|
---|
[482] | 3832 |
|
---|
[503] | 3833 |
|
---|
[1264] | 3834 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 3835 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 3836 | {
|
---|
[1004] | 3837 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3838 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3839 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3840 | }
|
---|
| 3841 |
|
---|
[477] | 3842 |
|
---|
[475] | 3843 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3844 | {
|
---|
| 3845 | }
|
---|
| 3846 |
|
---|
[477] | 3847 |
|
---|
[471] | 3848 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3849 | {
|
---|
[551] | 3850 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3851 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3852 | else
|
---|
| 3853 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3854 | }
|
---|
| 3855 |
|
---|
[477] | 3856 |
|
---|
[480] | 3857 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3858 | {
|
---|
[1545] | 3859 | // view cells tree constructed?
|
---|
[581] | 3860 | if (!ViewCellsTreeConstructed())
|
---|
| 3861 | {
|
---|
[590] | 3862 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3863 | }
|
---|
| 3864 | else
|
---|
[1264] | 3865 | {
|
---|
| 3866 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3867 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3868 | }
|
---|
[480] | 3869 | }
|
---|
| 3870 |
|
---|
| 3871 |
|
---|
[1021] | 3872 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3873 | vector<MergeCandidate> &candidates)
|
---|
| 3874 | {
|
---|
| 3875 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3876 |
|
---|
| 3877 | if (mUseRaysForMerge)
|
---|
| 3878 | {
|
---|
| 3879 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3880 | }
|
---|
| 3881 | else
|
---|
| 3882 | {
|
---|
| 3883 | vector<BspLeaf *> leaves;
|
---|
| 3884 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3885 |
|
---|
| 3886 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3887 | }
|
---|
| 3888 |
|
---|
| 3889 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3890 | }
|
---|
| 3891 |
|
---|
| 3892 |
|
---|
[442] | 3893 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3894 | {
|
---|
| 3895 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3896 | }
|
---|
| 3897 |
|
---|
[462] | 3898 |
|
---|
[442] | 3899 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3900 | {
|
---|
| 3901 | return new BspViewCell(mesh);
|
---|
| 3902 | }
|
---|
| 3903 |
|
---|
[569] | 3904 |
|
---|
[574] | 3905 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3906 | const VssRayContainer &rays)
|
---|
[442] | 3907 | {
|
---|
[710] | 3908 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3909 |
|
---|
[503] | 3910 | // if view cells were already constructed
|
---|
| 3911 | if (ViewCellsConstructed())
|
---|
[1545] | 3912 | {
|
---|
[503] | 3913 | return 0;
|
---|
[1545] | 3914 | }
|
---|
[442] | 3915 |
|
---|
[503] | 3916 | int sampleContributions = 0;
|
---|
| 3917 | VssRayContainer sampleRays;
|
---|
| 3918 |
|
---|
[1545] | 3919 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 3920 |
|
---|
[660] | 3921 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3922 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3923 |
|
---|
[1545] | 3924 | VssRayContainer savedRays;
|
---|
[487] | 3925 |
|
---|
[1545] | 3926 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3927 | {
|
---|
| 3928 | VssRayContainer constructionRays;
|
---|
| 3929 |
|
---|
| 3930 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 3931 |
|
---|
[1545] | 3932 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 3933 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 3934 |
|
---|
[667] | 3935 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 3936 | }
|
---|
[666] | 3937 | else
|
---|
[1221] | 3938 | {
|
---|
[1545] | 3939 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 3940 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 3941 | }
|
---|
[667] | 3942 |
|
---|
[490] | 3943 | // collapse invalid regions
|
---|
[491] | 3944 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 3945 | long startTime = GetTime();
|
---|
| 3946 |
|
---|
[1002] | 3947 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3948 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3949 | << " seconds" << endl;
|
---|
| 3950 |
|
---|
[495] | 3951 | cout << "finished" << endl;
|
---|
[503] | 3952 |
|
---|
[1444] | 3953 | /////////////////
|
---|
[1221] | 3954 | //-- stats after construction
|
---|
| 3955 |
|
---|
[660] | 3956 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3957 |
|
---|
[480] | 3958 | ResetViewCells();
|
---|
[660] | 3959 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3960 |
|
---|
[491] | 3961 |
|
---|
[1444] | 3962 | //////////////////////
|
---|
[1545] | 3963 | //-- recast the rest of the rays
|
---|
[1570] | 3964 |
|
---|
[495] | 3965 | startTime = GetTime();
|
---|
[503] | 3966 |
|
---|
[491] | 3967 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3968 |
|
---|
| 3969 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3970 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3971 |
|
---|
[491] | 3972 | cout << "finished" << endl;
|
---|
| 3973 |
|
---|
[503] | 3974 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3975 | << " secs" << endl;
|
---|
[442] | 3976 |
|
---|
[485] | 3977 | cout << "construction finished" << endl;
|
---|
[503] | 3978 |
|
---|
[719] | 3979 | if (0)
|
---|
[1545] | 3980 | { ////////
|
---|
[1077] | 3981 | //-- real meshes are contructed at this stage
|
---|
[719] | 3982 | cout << "finalizing view cells ... ";
|
---|
| 3983 | FinalizeViewCells(true);
|
---|
| 3984 | cout << "finished" << endl;
|
---|
| 3985 | }
|
---|
| 3986 |
|
---|
[442] | 3987 | return sampleContributions;
|
---|
| 3988 | }
|
---|
| 3989 |
|
---|
[489] | 3990 |
|
---|
[503] | 3991 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3992 | const ObjectContainer &objects)
|
---|
[475] | 3993 | {
|
---|
[442] | 3994 | int vcSize = 0;
|
---|
| 3995 | int pvsSize = 0;
|
---|
| 3996 |
|
---|
[650] | 3997 | //-- merge view cells
|
---|
| 3998 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3999 | long startTime = GetTime();
|
---|
| 4000 |
|
---|
| 4001 |
|
---|
[597] | 4002 | if (mMergeViewCells)
|
---|
| 4003 | {
|
---|
| 4004 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 4005 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 4006 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 4007 | }
|
---|
| 4008 | else
|
---|
| 4009 | {
|
---|
[710] | 4010 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 4011 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 4012 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 4013 |
|
---|
| 4014 | // compute pvs
|
---|
| 4015 | ObjectPvs pvs;
|
---|
| 4016 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 4017 | }
|
---|
[442] | 4018 |
|
---|
[666] | 4019 | if (1)
|
---|
| 4020 | {
|
---|
| 4021 | char mstats[100];
|
---|
[752] | 4022 | ObjectPvs pvs;
|
---|
| 4023 |
|
---|
[1004] | 4024 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 4025 | mViewCellsTree->ExportStats(mstats);
|
---|
| 4026 | }
|
---|
[485] | 4027 |
|
---|
[650] | 4028 | cout << "merged view cells in "
|
---|
| 4029 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 4030 |
|
---|
[650] | 4031 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 4032 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 4033 |
|
---|
| 4034 |
|
---|
[1444] | 4035 | //////////////////
|
---|
| 4036 | //-- stats and visualizations
|
---|
| 4037 |
|
---|
[600] | 4038 | int savedColorCode = mColorCode;
|
---|
| 4039 |
|
---|
[660] | 4040 | // get currently active view cell set
|
---|
| 4041 | ResetViewCells();
|
---|
| 4042 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 4043 |
|
---|
[1616] | 4044 | if (mShowVisualization) // export merged view cells
|
---|
[483] | 4045 | {
|
---|
[600] | 4046 | mColorCode = 0;
|
---|
[744] | 4047 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 4048 |
|
---|
[485] | 4049 | cout << "exporting view cells after merge ... ";
|
---|
| 4050 |
|
---|
| 4051 | if (exporter)
|
---|
[483] | 4052 | {
|
---|
[600] | 4053 | if (0)
|
---|
| 4054 | exporter->SetWireframe();
|
---|
| 4055 | else
|
---|
| 4056 | exporter->SetFilled();
|
---|
| 4057 |
|
---|
[1416] | 4058 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[600] | 4059 |
|
---|
[485] | 4060 | if (mExportGeometry)
|
---|
[483] | 4061 | {
|
---|
[485] | 4062 | Material m;
|
---|
| 4063 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4064 | exporter->SetForcedMaterial(m);
|
---|
| 4065 | exporter->SetFilled();
|
---|
[442] | 4066 |
|
---|
[485] | 4067 | exporter->ExportGeometry(objects);
|
---|
[442] | 4068 | }
|
---|
[485] | 4069 |
|
---|
[600] | 4070 | delete exporter;
|
---|
| 4071 | }
|
---|
| 4072 | cout << "finished" << endl;
|
---|
| 4073 | }
|
---|
| 4074 |
|
---|
[1616] | 4075 | if (mShowVisualization)
|
---|
[600] | 4076 | {
|
---|
[1416] | 4077 | // use pvs size for color coding
|
---|
| 4078 | mColorCode = 1;
|
---|
[744] | 4079 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 4080 |
|
---|
[600] | 4081 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 4082 |
|
---|
| 4083 | if (exporter)
|
---|
| 4084 | {
|
---|
[1416] | 4085 | exporter->SetFilled();
|
---|
[598] | 4086 |
|
---|
[1416] | 4087 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[598] | 4088 |
|
---|
[600] | 4089 | if (mExportGeometry)
|
---|
| 4090 | {
|
---|
| 4091 | Material m;
|
---|
| 4092 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4093 | exporter->SetForcedMaterial(m);
|
---|
| 4094 | exporter->SetFilled();
|
---|
| 4095 |
|
---|
| 4096 | exporter->ExportGeometry(objects);
|
---|
| 4097 | }
|
---|
| 4098 |
|
---|
[485] | 4099 | delete exporter;
|
---|
[442] | 4100 | }
|
---|
[485] | 4101 | cout << "finished" << endl;
|
---|
[442] | 4102 | }
|
---|
[600] | 4103 |
|
---|
| 4104 | mColorCode = savedColorCode;
|
---|
[503] | 4105 | }
|
---|
[475] | 4106 |
|
---|
[503] | 4107 |
|
---|
[564] | 4108 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 4109 | const ObjectContainer &objects)
|
---|
[503] | 4110 | {
|
---|
[485] | 4111 | mRenderer->RenderScene();
|
---|
[1616] | 4112 |
|
---|
[503] | 4113 | SimulationStatistics ss;
|
---|
[485] | 4114 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 4115 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 4116 |
|
---|
[1414] | 4117 | const long startTime = GetTime();
|
---|
[489] | 4118 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 4119 |
|
---|
| 4120 | // refining the merged view cells
|
---|
[580] | 4121 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 4122 |
|
---|
[442] | 4123 | //-- stats and visualizations
|
---|
| 4124 | cout << "finished" << endl;
|
---|
[485] | 4125 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 4126 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 4127 |
|
---|
[485] | 4128 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 4129 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 4130 | }
|
---|
[495] | 4131 |
|
---|
[517] | 4132 |
|
---|
[503] | 4133 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4134 | const VssRayContainer &rays)
|
---|
[840] | 4135 | {
|
---|
[503] | 4136 | if (!ViewCellsConstructed())
|
---|
| 4137 | {
|
---|
[517] | 4138 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4139 | return 0;
|
---|
| 4140 | }
|
---|
[520] | 4141 |
|
---|
[609] | 4142 | // view cells already finished before post processing step
|
---|
| 4143 | // (i.e. because they were loaded)
|
---|
[520] | 4144 | if (mViewCellsFinished)
|
---|
[542] | 4145 | {
|
---|
[551] | 4146 | FinalizeViewCells(true);
|
---|
[542] | 4147 | EvaluateViewCellsStats();
|
---|
[577] | 4148 |
|
---|
[517] | 4149 | return 0;
|
---|
[542] | 4150 | }
|
---|
[448] | 4151 |
|
---|
[710] | 4152 | // check if new view cells turned invalid
|
---|
| 4153 | int minPvs, maxPvs;
|
---|
[564] | 4154 |
|
---|
[710] | 4155 | if (0)
|
---|
| 4156 | {
|
---|
| 4157 | minPvs = mMinPvsSize;
|
---|
| 4158 | maxPvs = mMaxPvsSize;
|
---|
| 4159 | }
|
---|
| 4160 | else
|
---|
| 4161 | {
|
---|
[1414] | 4162 | // problem matt: why did I start here from zero?
|
---|
| 4163 | minPvs = 0;
|
---|
[710] | 4164 | maxPvs = mMaxPvsSize;
|
---|
| 4165 | }
|
---|
[720] | 4166 |
|
---|
[710] | 4167 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4168 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4169 |
|
---|
| 4170 | SetValidity(minPvs, maxPvs);
|
---|
| 4171 |
|
---|
[574] | 4172 | // update valid view space according to valid view cells
|
---|
[720] | 4173 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4174 |
|
---|
[720] | 4175 | // area has to be recomputed
|
---|
[574] | 4176 | mTotalAreaValid = false;
|
---|
[517] | 4177 | VssRayContainer postProcessRays;
|
---|
[605] | 4178 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4179 |
|
---|
[517] | 4180 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4181 |
|
---|
[1414] | 4182 | // should maybe be done here to allow merge working
|
---|
| 4183 | // with area or volume and to correct the rendering statistics
|
---|
[719] | 4184 | if (0) FinalizeViewCells(false);
|
---|
[720] | 4185 |
|
---|
[1444] | 4186 | //////////
|
---|
[597] | 4187 | //-- merge the individual view cells
|
---|
| 4188 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4189 |
|
---|
[1444] | 4190 | // refines the merged view cells
|
---|
[720] | 4191 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4192 |
|
---|
[1444] | 4193 |
|
---|
| 4194 | ///////////
|
---|
[660] | 4195 | //-- render simulation after merge + refine
|
---|
[1414] | 4196 |
|
---|
[1415] | 4197 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4198 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4199 | SimulationStatistics ss;
|
---|
| 4200 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4201 | cout << ss << endl;
|
---|
[1414] | 4202 |
|
---|
[600] | 4203 |
|
---|
[1418] | 4204 | ////////////
|
---|
[600] | 4205 | //-- compression
|
---|
[1586] | 4206 | //#if HAS_TO_BE_REDONE
|
---|
[600] | 4207 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4208 | {
|
---|
[1586] | 4209 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4210 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 4211 |
|
---|
[752] | 4212 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 4213 |
|
---|
[1586] | 4214 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4215 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 4216 | }
|
---|
[1586] | 4217 | //#endif
|
---|
[600] | 4218 |
|
---|
[517] | 4219 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4220 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4221 |
|
---|
[574] | 4222 | // recompute view cell list and statistics
|
---|
[520] | 4223 | ResetViewCells();
|
---|
| 4224 |
|
---|
[719] | 4225 | // compute final meshes and volume / area
|
---|
| 4226 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4227 |
|
---|
[503] | 4228 | return 0;
|
---|
[442] | 4229 | }
|
---|
| 4230 |
|
---|
[490] | 4231 |
|
---|
[442] | 4232 | int VspBspViewCellsManager::GetType() const
|
---|
| 4233 | {
|
---|
| 4234 | return VSP_BSP;
|
---|
| 4235 | }
|
---|
| 4236 |
|
---|
| 4237 |
|
---|
[650] | 4238 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4239 | {
|
---|
[752] | 4240 | // terminate recursion
|
---|
[650] | 4241 | if (root->IsLeaf())
|
---|
| 4242 | {
|
---|
[752] | 4243 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4244 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4245 | return leaf->GetViewCell();
|
---|
[650] | 4246 | }
|
---|
| 4247 |
|
---|
[752] | 4248 |
|
---|
[650] | 4249 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4250 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4251 |
|
---|
[752] | 4252 | // evaluate merge cost for priority traversal
|
---|
[650] | 4253 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4254 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4255 |
|
---|
[650] | 4256 | float volume = 0;
|
---|
| 4257 |
|
---|
| 4258 | BspNode *front = interior->GetFront();
|
---|
| 4259 | BspNode *back = interior->GetBack();
|
---|
[649] | 4260 |
|
---|
[752] | 4261 |
|
---|
| 4262 | ObjectPvs frontPvs, backPvs;
|
---|
| 4263 |
|
---|
| 4264 | //-- recursivly compute child hierarchies
|
---|
[650] | 4265 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4266 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4267 |
|
---|
[752] | 4268 |
|
---|
| 4269 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4270 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4271 |
|
---|
| 4272 | volume += backVc->GetVolume();
|
---|
| 4273 | volume += frontVc->GetVolume();
|
---|
| 4274 |
|
---|
| 4275 | viewCellInterior->SetVolume(volume);
|
---|
| 4276 |
|
---|
| 4277 | return viewCellInterior;
|
---|
[609] | 4278 | }
|
---|
| 4279 |
|
---|
| 4280 |
|
---|
[490] | 4281 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4282 | {
|
---|
| 4283 | if (!ViewCellsConstructed())
|
---|
| 4284 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4285 |
|
---|
| 4286 | // TODO: set reasonable limit
|
---|
| 4287 | const int limit = 20;
|
---|
| 4288 |
|
---|
| 4289 | for (int i = 0; i < limit; ++ i)
|
---|
| 4290 | {
|
---|
[542] | 4291 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4292 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4293 | {
|
---|
| 4294 | return true;
|
---|
| 4295 | }
|
---|
| 4296 | }
|
---|
[997] | 4297 |
|
---|
[490] | 4298 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4299 | return false;
|
---|
| 4300 | }
|
---|
| 4301 |
|
---|
| 4302 |
|
---|
| 4303 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4304 | {
|
---|
[1551] | 4305 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4306 | // validy update in preprocessor for all managers)
|
---|
| 4307 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4308 |
|
---|
[1551] | 4309 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4310 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4311 | }
|
---|
| 4312 |
|
---|
| 4313 |
|
---|
[442] | 4314 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4315 | const VssRayContainer &sampleRays)
|
---|
[442] | 4316 | {
|
---|
| 4317 | if (!ViewCellsConstructed())
|
---|
| 4318 | return;
|
---|
| 4319 |
|
---|
[485] | 4320 | VssRayContainer visRays;
|
---|
| 4321 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4322 |
|
---|
[1551] | 4323 | if (1)
|
---|
[1047] | 4324 | {
|
---|
[1416] | 4325 | //////////////////
|
---|
| 4326 | //-- export final view cell partition
|
---|
| 4327 |
|
---|
[1020] | 4328 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4329 |
|
---|
[442] | 4330 | if (exporter)
|
---|
| 4331 | {
|
---|
[580] | 4332 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4333 | if (0)
|
---|
[1563] | 4334 | { // export view space box
|
---|
[542] | 4335 | exporter->SetWireframe();
|
---|
| 4336 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4337 | exporter->SetFilled();
|
---|
| 4338 | }
|
---|
| 4339 |
|
---|
[1052] | 4340 | Material m;
|
---|
| 4341 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4342 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4343 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4344 |
|
---|
| 4345 | exporter->SetForcedMaterial(m);
|
---|
| 4346 |
|
---|
[1563] | 4347 | if (1 && mExportGeometry)
|
---|
[542] | 4348 | {
|
---|
[485] | 4349 | exporter->ExportGeometry(objects);
|
---|
[542] | 4350 | }
|
---|
[489] | 4351 |
|
---|
[1047] | 4352 | if (0 && mExportRays)
|
---|
[489] | 4353 | {
|
---|
[1052] | 4354 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4355 | }
|
---|
[1416] | 4356 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[1020] | 4357 |
|
---|
[442] | 4358 | delete exporter;
|
---|
[580] | 4359 | cout << "finished" << endl;
|
---|
[442] | 4360 | }
|
---|
[557] | 4361 | }
|
---|
[503] | 4362 |
|
---|
[1551] | 4363 | ////////////////
|
---|
[442] | 4364 | //-- visualization of the BSP splits
|
---|
[1551] | 4365 |
|
---|
[442] | 4366 | bool exportSplits = false;
|
---|
[1004] | 4367 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4368 |
|
---|
[442] | 4369 | if (exportSplits)
|
---|
| 4370 | {
|
---|
| 4371 | cout << "exporting splits ... ";
|
---|
[485] | 4372 | ExportSplits(objects, visRays);
|
---|
[442] | 4373 | cout << "finished" << endl;
|
---|
| 4374 | }
|
---|
| 4375 |
|
---|
[1551] | 4376 | ////////
|
---|
[542] | 4377 | //-- export single view cells
|
---|
[1570] | 4378 |
|
---|
| 4379 | int leafOut;
|
---|
| 4380 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4381 | const int raysOut = 100;
|
---|
| 4382 |
|
---|
| 4383 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4384 | }
|
---|
| 4385 |
|
---|
[503] | 4386 |
|
---|
[485] | 4387 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4388 | const VssRayContainer &rays)
|
---|
[442] | 4389 | {
|
---|
| 4390 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4391 |
|
---|
[503] | 4392 | if (exporter)
|
---|
| 4393 | {
|
---|
| 4394 | Material m;
|
---|
[442] | 4395 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4396 | exporter->SetForcedMaterial(m);
|
---|
| 4397 | exporter->SetWireframe();
|
---|
[503] | 4398 |
|
---|
[448] | 4399 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4400 |
|
---|
| 4401 | // take forced material, else big scenes cannot be viewed
|
---|
| 4402 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4403 | exporter->SetForcedMaterial(m);
|
---|
| 4404 | exporter->SetFilled();
|
---|
| 4405 |
|
---|
| 4406 | exporter->ResetForcedMaterial();
|
---|
[503] | 4407 |
|
---|
[442] | 4408 | // export rays
|
---|
[485] | 4409 | if (mExportRays)
|
---|
[1545] | 4410 | {
|
---|
[485] | 4411 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4412 | }
|
---|
[503] | 4413 |
|
---|
[485] | 4414 | if (mExportGeometry)
|
---|
[1545] | 4415 | {
|
---|
[442] | 4416 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4417 | }
|
---|
[442] | 4418 | delete exporter;
|
---|
| 4419 | }
|
---|
| 4420 | }
|
---|
| 4421 |
|
---|
[503] | 4422 |
|
---|
[1570] | 4423 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4424 | const int maxViewCells,
|
---|
| 4425 | const bool sortViewCells,
|
---|
| 4426 | const bool exportPvs,
|
---|
| 4427 | const bool exportRays,
|
---|
| 4428 | const int maxRays,
|
---|
| 4429 | const string prefix,
|
---|
| 4430 | VssRayContainer *visRays)
|
---|
| 4431 | {
|
---|
[694] | 4432 | if (sortViewCells)
|
---|
[801] | 4433 | {
|
---|
[1570] | 4434 | // sort view cells to visualize the largest view cells
|
---|
[801] | 4435 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4436 | }
|
---|
| 4437 |
|
---|
[1566] | 4438 | //////////
|
---|
[1570] | 4439 | //-- some view cells for output
|
---|
[483] | 4440 |
|
---|
[1570] | 4441 | ViewCell::NewMail();
|
---|
| 4442 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 4443 |
|
---|
[478] | 4444 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4445 | {
|
---|
[478] | 4446 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4447 |
|
---|
[1570] | 4448 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 4449 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 4450 |
|
---|
[1570] | 4451 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 4452 | continue;
|
---|
| 4453 |
|
---|
| 4454 | vc->Mail();
|
---|
| 4455 |
|
---|
[801] | 4456 | ObjectPvs pvs;
|
---|
| 4457 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4458 |
|
---|
[1570] | 4459 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 4460 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4461 |
|
---|
[1709] | 4462 | const float pvsCost = mViewCellsTree->GetPvsCost(vc);
|
---|
| 4463 | cout << "view cell " << vc->GetId() << ": pvs cost=" << pvsCost << endl;
|
---|
[587] | 4464 |
|
---|
[1570] | 4465 | if (exportRays)
|
---|
[442] | 4466 | {
|
---|
[1566] | 4467 | ////////////
|
---|
| 4468 | //-- export rays piercing this view cell
|
---|
| 4469 |
|
---|
| 4470 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 4471 | VssRayContainer vcRays;
|
---|
| 4472 | VssRayContainer collectRays;
|
---|
[639] | 4473 |
|
---|
[1566] | 4474 | // collect initial view cells
|
---|
[1551] | 4475 | ViewCellContainer leaves;
|
---|
| 4476 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 4477 |
|
---|
[1551] | 4478 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 4479 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 4480 | {
|
---|
[1551] | 4481 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 4482 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4483 |
|
---|
[1551] | 4484 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4485 | {
|
---|
[1551] | 4486 | collectRays.push_back(*rit);
|
---|
[639] | 4487 | }
|
---|
[1551] | 4488 | }
|
---|
[801] | 4489 |
|
---|
[1570] | 4490 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 4491 |
|
---|
[1566] | 4492 | // prepare some rays for output
|
---|
[1551] | 4493 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4494 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4495 | {
|
---|
[1566] | 4496 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 4497 |
|
---|
| 4498 | if (p < raysOut)
|
---|
[1566] | 4499 | {
|
---|
[1551] | 4500 | vcRays.push_back(*rit);
|
---|
[1566] | 4501 | }
|
---|
[639] | 4502 | }
|
---|
| 4503 |
|
---|
[1551] | 4504 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4505 | }
|
---|
[639] | 4506 |
|
---|
[1416] | 4507 | ////////////////
|
---|
[1020] | 4508 | //-- export view cell geometry
|
---|
[1416] | 4509 |
|
---|
[478] | 4510 | exporter->SetWireframe();
|
---|
[442] | 4511 |
|
---|
[478] | 4512 | Material m;//= RandomMaterial();
|
---|
| 4513 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4514 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4515 |
|
---|
[1416] | 4516 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4517 | exporter->SetFilled();
|
---|
[503] | 4518 |
|
---|
[1570] | 4519 | if (exportPvs)
|
---|
[574] | 4520 | {
|
---|
[801] | 4521 | Intersectable::NewMail();
|
---|
[1570] | 4522 |
|
---|
[1566] | 4523 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1570] | 4524 | cout << endl;
|
---|
[639] | 4525 | // output PVS of view cell
|
---|
[801] | 4526 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4527 | {
|
---|
| 4528 | Intersectable *intersect = (*oit).first;
|
---|
[1570] | 4529 |
|
---|
[639] | 4530 | if (!intersect->Mailed())
|
---|
| 4531 | {
|
---|
[1570] | 4532 | intersect->Mail();
|
---|
[1571] | 4533 |
|
---|
[643] | 4534 | m = RandomMaterial();
|
---|
| 4535 | exporter->SetForcedMaterial(m);
|
---|
[639] | 4536 | exporter->ExportIntersectable(intersect);
|
---|
| 4537 | }
|
---|
[503] | 4538 | }
|
---|
[1570] | 4539 | cout << endl;
|
---|
[442] | 4540 | }
|
---|
[801] | 4541 |
|
---|
[478] | 4542 | DEL_PTR(exporter);
|
---|
| 4543 | cout << "finished" << endl;
|
---|
[442] | 4544 | }
|
---|
| 4545 | }
|
---|
| 4546 |
|
---|
| 4547 |
|
---|
[1021] | 4548 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4549 | {
|
---|
[1021] | 4550 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4551 |
|
---|
[1021] | 4552 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4553 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4554 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4555 | const Vector3 width = Vector3(w);
|
---|
| 4556 |
|
---|
| 4557 | PrVs testPrVs;
|
---|
| 4558 |
|
---|
| 4559 | if (exporter)
|
---|
| 4560 | {
|
---|
| 4561 | ViewCellContainer viewCells;
|
---|
| 4562 |
|
---|
| 4563 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4564 |
|
---|
[1021] | 4565 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4566 |
|
---|
[1021] | 4567 | exporter->SetWireframe();
|
---|
[482] | 4568 |
|
---|
[1021] | 4569 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4570 | exporter->ExportBox(tbox);
|
---|
| 4571 |
|
---|
| 4572 | exporter->SetFilled();
|
---|
[503] | 4573 |
|
---|
[1021] | 4574 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4575 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4576 |
|
---|
[1021] | 4577 | //exporter->ResetForcedMaterial();
|
---|
| 4578 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4579 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4580 |
|
---|
[1021] | 4581 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4582 | exporter->ExportGeometry(objects);
|
---|
[547] | 4583 |
|
---|
[1021] | 4584 | delete exporter;
|
---|
[482] | 4585 | }
|
---|
[1021] | 4586 | }
|
---|
[482] | 4587 |
|
---|
[547] | 4588 |
|
---|
[1021] | 4589 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4590 | ViewCellContainer &viewCells) const
|
---|
| 4591 | {
|
---|
| 4592 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4593 | }
|
---|
| 4594 |
|
---|
| 4595 |
|
---|
[1021] | 4596 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4597 | const Vector3 &termination,
|
---|
| 4598 | ViewCellContainer &viewcells)
|
---|
| 4599 | {
|
---|
| 4600 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4601 | }
|
---|
| 4602 |
|
---|
| 4603 |
|
---|
[979] | 4604 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4605 | {
|
---|
| 4606 | int numSamples;
|
---|
[1161] | 4607 |
|
---|
[1004] | 4608 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4609 | cout << "samples" << numSamples << endl;
|
---|
| 4610 |
|
---|
| 4611 | vector<RenderCostSample> samples;
|
---|
| 4612 |
|
---|
[1145] | 4613 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4614 | return;
|
---|
| 4615 |
|
---|
[1145] | 4616 | //start the view point queries
|
---|
[979] | 4617 | long startTime = GetTime();
|
---|
| 4618 | cout << "starting sampling of render cost ... ";
|
---|
| 4619 |
|
---|
[1145] | 4620 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4621 |
|
---|
| 4622 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4623 |
|
---|
| 4624 |
|
---|
[1161] | 4625 | // for each sample:
|
---|
| 4626 | // find view cells associated with the samples
|
---|
| 4627 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 4628 | //
|
---|
[1161] | 4629 | // for each view cell:
|
---|
| 4630 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4631 | // export geometry with color coded pvs difference
|
---|
| 4632 |
|
---|
| 4633 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4634 |
|
---|
[979] | 4635 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4636 |
|
---|
[1161] | 4637 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4638 | {
|
---|
| 4639 | RenderCostSample sample = *rit;
|
---|
| 4640 |
|
---|
| 4641 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4642 |
|
---|
[1161] | 4643 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4644 |
|
---|
| 4645 | if (it == sampleMap.end())
|
---|
| 4646 | {
|
---|
| 4647 | sampleMap[vc] = sample.mPvs;
|
---|
| 4648 | }
|
---|
| 4649 | else
|
---|
| 4650 | {
|
---|
| 4651 | (*it).second.Merge(sample.mPvs);
|
---|
| 4652 | }
|
---|
| 4653 | }
|
---|
| 4654 |
|
---|
| 4655 | // visualize the view cells
|
---|
| 4656 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4657 |
|
---|
| 4658 | Material m;//= RandomMaterial();
|
---|
| 4659 |
|
---|
| 4660 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4661 | {
|
---|
| 4662 | ViewCell *vc = (*vit).first;
|
---|
| 4663 |
|
---|
| 4664 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4665 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4666 |
|
---|
[1168] | 4667 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4668 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4669 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 4670 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 4671 |
|
---|
[1415] | 4672 | /* // counting the pvss
|
---|
| 4673 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4674 | {
|
---|
| 4675 | RenderCostSample sample = *rit;
|
---|
| 4676 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 4677 |
|
---|
[1415] | 4678 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4679 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 4680 |
|
---|
[1415] | 4681 | DEL_PTR(hMesh);
|
---|
| 4682 | }
|
---|
| 4683 | */
|
---|
[979] | 4684 | }
|
---|
| 4685 | }
|
---|
| 4686 |
|
---|
| 4687 |
|
---|
[580] | 4688 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 4689 | ViewCell *vc,
|
---|
| 4690 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4691 | const AxisAlignedPlane *clipPlane
|
---|
| 4692 | ) const
|
---|
[482] | 4693 | {
|
---|
[660] | 4694 | if (clipPlane)
|
---|
[591] | 4695 | {
|
---|
[1047] | 4696 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4697 |
|
---|
[591] | 4698 | ViewCellContainer leaves;
|
---|
| 4699 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4700 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4701 |
|
---|
| 4702 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4703 | {
|
---|
| 4704 | BspNodeGeometry geom;
|
---|
| 4705 | BspNodeGeometry front;
|
---|
| 4706 | BspNodeGeometry back;
|
---|
| 4707 |
|
---|
[1551] | 4708 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 4709 |
|
---|
[1052] | 4710 | const float eps = 0.0001f;
|
---|
[1047] | 4711 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4712 |
|
---|
[710] | 4713 | if (cf == -1)
|
---|
[682] | 4714 | {
|
---|
| 4715 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4716 | }
|
---|
[710] | 4717 | else if (cf == 0)
|
---|
[684] | 4718 | {
|
---|
[682] | 4719 | geom.SplitGeometry(front,
|
---|
| 4720 | back,
|
---|
[1047] | 4721 | plane,
|
---|
[682] | 4722 | mViewSpaceBox,
|
---|
[710] | 4723 | eps);
|
---|
[801] | 4724 |
|
---|
[683] | 4725 | if (back.Valid())
|
---|
| 4726 | {
|
---|
[682] | 4727 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4728 | }
|
---|
[684] | 4729 | }
|
---|
[591] | 4730 | }
|
---|
| 4731 | }
|
---|
| 4732 | else
|
---|
| 4733 | {
|
---|
[801] | 4734 | // export mesh if available
|
---|
[1001] | 4735 | // TODO: some bug here?
|
---|
[1563] | 4736 | if (1 && vc->GetMesh())
|
---|
[801] | 4737 | {
|
---|
| 4738 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4739 | }
|
---|
| 4740 | else
|
---|
[1001] | 4741 | {
|
---|
[801] | 4742 | BspNodeGeometry geom;
|
---|
| 4743 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4744 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4745 | }
|
---|
[591] | 4746 | }
|
---|
[482] | 4747 | }
|
---|
| 4748 |
|
---|
| 4749 |
|
---|
| 4750 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4751 | {
|
---|
[580] | 4752 | ViewCellContainer leaves;
|
---|
| 4753 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4754 |
|
---|
| 4755 | int maxDist = 0;
|
---|
[580] | 4756 |
|
---|
[482] | 4757 | // compute max height difference
|
---|
[580] | 4758 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4759 | {
|
---|
[580] | 4760 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4761 | {
|
---|
[1551] | 4762 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 4763 |
|
---|
[1001] | 4764 | if (i != j)
|
---|
| 4765 | {
|
---|
[1551] | 4766 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 4767 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 4768 |
|
---|
| 4769 | if (dist > maxDist)
|
---|
| 4770 | maxDist = dist;
|
---|
| 4771 | }
|
---|
[482] | 4772 | }
|
---|
| 4773 | }
|
---|
[580] | 4774 |
|
---|
[492] | 4775 | return maxDist;
|
---|
| 4776 | }
|
---|
[482] | 4777 |
|
---|
[492] | 4778 |
|
---|
[879] | 4779 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4780 | {
|
---|
[1021] | 4781 | if (!ViewCellsConstructed())
|
---|
[508] | 4782 | return NULL;
|
---|
[572] | 4783 |
|
---|
| 4784 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4785 | return NULL;
|
---|
| 4786 |
|
---|
[879] | 4787 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4788 | }
|
---|
[503] | 4789 |
|
---|
| 4790 |
|
---|
| 4791 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4792 | {
|
---|
| 4793 | BspNodeGeometry geom;
|
---|
[590] | 4794 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4795 |
|
---|
[1001] | 4796 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4797 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4798 |
|
---|
[503] | 4799 | vc->SetMesh(mesh);
|
---|
| 4800 | }
|
---|
[508] | 4801 |
|
---|
| 4802 |
|
---|
[532] | 4803 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4804 | {
|
---|
[535] | 4805 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4806 | }
|
---|
[551] | 4807 |
|
---|
| 4808 |
|
---|
[587] | 4809 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4810 | const bool createMesh)
|
---|
[551] | 4811 | {
|
---|
| 4812 | float area = 0;
|
---|
| 4813 | float volume = 0;
|
---|
| 4814 |
|
---|
[580] | 4815 | ViewCellContainer leaves;
|
---|
[582] | 4816 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4817 |
|
---|
| 4818 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4819 |
|
---|
[693] | 4820 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4821 | {
|
---|
| 4822 | BspNodeGeometry geom;
|
---|
[1551] | 4823 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 4824 |
|
---|
[719] | 4825 | const float lVol = geom.GetVolume();
|
---|
| 4826 | const float lArea = geom.GetArea();
|
---|
[693] | 4827 |
|
---|
| 4828 | area += lArea;
|
---|
| 4829 | volume += lVol;
|
---|
| 4830 |
|
---|
[1616] | 4831 | if (createMesh)
|
---|
| 4832 | CreateMesh(*it);
|
---|
[551] | 4833 | }
|
---|
| 4834 |
|
---|
| 4835 | viewCell->SetVolume(volume);
|
---|
| 4836 | viewCell->SetArea(area);
|
---|
[563] | 4837 | }
|
---|
[575] | 4838 |
|
---|
| 4839 |
|
---|
[693] | 4840 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4841 | {
|
---|
| 4842 | ViewCellContainer leaves;
|
---|
| 4843 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4844 |
|
---|
| 4845 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4846 |
|
---|
| 4847 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4848 | float subdivVol = 0;
|
---|
| 4849 | float newVol = 0;
|
---|
| 4850 |
|
---|
| 4851 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4852 | {
|
---|
| 4853 | BspNodeGeometry geom;
|
---|
[1551] | 4854 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 4855 |
|
---|
| 4856 | const float lVol = geom.GetVolume();
|
---|
| 4857 |
|
---|
| 4858 | newVol += lVol;
|
---|
| 4859 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4860 |
|
---|
[704] | 4861 | float thres = 0.9f;
|
---|
[697] | 4862 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4863 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4864 | }
|
---|
| 4865 |
|
---|
| 4866 | Debug << "exact volume: " << vol << endl;
|
---|
| 4867 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4868 | Debug << "new volume: " << newVol << endl;
|
---|
| 4869 | }
|
---|
| 4870 |
|
---|
| 4871 |
|
---|
[577] | 4872 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4873 | {
|
---|
| 4874 | // TODO: do I still need this here?
|
---|
[590] | 4875 | if (0)
|
---|
[693] | 4876 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4877 | }
|
---|
[575] | 4878 |
|
---|
[1021] | 4879 |
|
---|
| 4880 |
|
---|
| 4881 | /**************************************************************************/
|
---|
[1047] | 4882 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4883 | /**************************************************************************/
|
---|
| 4884 |
|
---|
| 4885 |
|
---|
[1278] | 4886 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 4887 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 4888 | {
|
---|
[1640] | 4889 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
[1106] | 4890 |
|
---|
[1278] | 4891 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 4892 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 4893 | }
|
---|
[859] | 4894 |
|
---|
| 4895 |
|
---|
[1021] | 4896 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4897 | {
|
---|
| 4898 | }
|
---|
| 4899 |
|
---|
| 4900 |
|
---|
| 4901 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4902 | {
|
---|
| 4903 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4904 | }
|
---|
| 4905 |
|
---|
| 4906 |
|
---|
| 4907 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4908 | {
|
---|
| 4909 | // view cells tree constructed
|
---|
| 4910 | if (!ViewCellsTreeConstructed())
|
---|
| 4911 | {
|
---|
[1278] | 4912 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 4913 | }
|
---|
| 4914 | else
|
---|
| 4915 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4916 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4917 | }
|
---|
| 4918 | }
|
---|
| 4919 |
|
---|
| 4920 |
|
---|
| 4921 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4922 | {
|
---|
[1278] | 4923 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 4924 | }
|
---|
| 4925 |
|
---|
| 4926 |
|
---|
| 4927 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4928 | {
|
---|
| 4929 | return new VspViewCell(mesh);
|
---|
| 4930 | }
|
---|
| 4931 |
|
---|
| 4932 |
|
---|
| 4933 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4934 | const VssRayContainer &rays)
|
---|
| 4935 | {
|
---|
| 4936 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4937 |
|
---|
[1074] | 4938 | // skip rest if view cells were already constructed
|
---|
[1021] | 4939 | if (ViewCellsConstructed())
|
---|
| 4940 | return 0;
|
---|
| 4941 |
|
---|
| 4942 | int sampleContributions = 0;
|
---|
| 4943 | VssRayContainer sampleRays;
|
---|
| 4944 |
|
---|
| 4945 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4946 |
|
---|
| 4947 | VssRayContainer constructionRays;
|
---|
| 4948 | VssRayContainer savedRays;
|
---|
| 4949 |
|
---|
| 4950 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4951 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4952 |
|
---|
| 4953 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4954 |
|
---|
[1421] | 4955 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 4956 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4957 |
|
---|
[1293] | 4958 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 4959 |
|
---|
[1576] | 4960 | #if TEST_EVALUATION
|
---|
| 4961 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 4962 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 4963 | {
|
---|
| 4964 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 4965 | }
|
---|
| 4966 | #endif
|
---|
| 4967 |
|
---|
[1545] | 4968 | /////////////////////////
|
---|
[1444] | 4969 | //-- print satistics for subdivision and view cells
|
---|
| 4970 |
|
---|
[1421] | 4971 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 4972 |
|
---|
[1444] | 4973 | ResetViewCells();
|
---|
| 4974 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4975 |
|
---|
[1545] | 4976 | //////////////
|
---|
[1444] | 4977 | //-- recast rest of rays
|
---|
| 4978 |
|
---|
[1286] | 4979 | const long startTime = GetTime();
|
---|
[1021] | 4980 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4981 |
|
---|
| 4982 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4983 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4984 |
|
---|
[1415] | 4985 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 4986 | << " secs" << endl;
|
---|
| 4987 |
|
---|
| 4988 | if (0)
|
---|
[1545] | 4989 | { // real meshes are constructed at this stage
|
---|
[1021] | 4990 | cout << "finalizing view cells ... ";
|
---|
| 4991 | FinalizeViewCells(true);
|
---|
| 4992 | cout << "finished" << endl;
|
---|
| 4993 | }
|
---|
| 4994 |
|
---|
| 4995 | return sampleContributions;
|
---|
| 4996 | }
|
---|
| 4997 |
|
---|
| 4998 |
|
---|
| 4999 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 5000 | const VssRayContainer &rays)
|
---|
| 5001 | {
|
---|
| 5002 | if (!ViewCellsConstructed())
|
---|
| 5003 | {
|
---|
| 5004 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 5005 | return 0;
|
---|
| 5006 | }
|
---|
| 5007 |
|
---|
[1418] | 5008 | // if view cells were already constructed before post processing step
|
---|
| 5009 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 5010 | if (mViewCellsFinished)
|
---|
| 5011 | {
|
---|
| 5012 | FinalizeViewCells(true);
|
---|
| 5013 | EvaluateViewCellsStats();
|
---|
| 5014 |
|
---|
| 5015 | return 0;
|
---|
| 5016 | }
|
---|
| 5017 |
|
---|
| 5018 | // check if new view cells turned invalid
|
---|
| 5019 | int minPvs, maxPvs;
|
---|
| 5020 |
|
---|
| 5021 | if (0)
|
---|
| 5022 | {
|
---|
| 5023 | minPvs = mMinPvsSize;
|
---|
| 5024 | maxPvs = mMaxPvsSize;
|
---|
| 5025 | }
|
---|
| 5026 | else
|
---|
| 5027 | {
|
---|
[1414] | 5028 | // problem matt: why did I start here from zero?
|
---|
| 5029 | minPvs = 0;
|
---|
[1021] | 5030 | maxPvs = mMaxPvsSize;
|
---|
| 5031 | }
|
---|
| 5032 |
|
---|
| 5033 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5034 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 5035 |
|
---|
| 5036 | SetValidity(minPvs, maxPvs);
|
---|
| 5037 |
|
---|
| 5038 |
|
---|
[1414] | 5039 | // area is not up to date, has to be recomputed
|
---|
[1021] | 5040 | mTotalAreaValid = false;
|
---|
| 5041 | VssRayContainer postProcessRays;
|
---|
| 5042 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 5043 |
|
---|
| 5044 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 5045 |
|
---|
| 5046 |
|
---|
| 5047 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 5048 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 5049 | mViewCellsTree->SetRoot(root);
|
---|
| 5050 |
|
---|
[1696] | 5051 | //////////////////////////
|
---|
| 5052 | //-- update pvs up to the root of the hierarchy
|
---|
[1418] | 5053 |
|
---|
[1021] | 5054 | ObjectPvs pvs;
|
---|
| 5055 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 5056 |
|
---|
[1414] | 5057 |
|
---|
[1418] | 5058 | //////////////////////
|
---|
[1021] | 5059 | //-- render simulation after merge + refine
|
---|
[1414] | 5060 |
|
---|
[1415] | 5061 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 5062 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 5063 | SimulationStatistics ss;
|
---|
| 5064 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 5065 | cout << ss << endl;
|
---|
[1414] | 5066 |
|
---|
[1486] | 5067 |
|
---|
[1586] | 5068 | ///////////
|
---|
[1021] | 5069 | //-- compression
|
---|
[1262] | 5070 |
|
---|
[1021] | 5071 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 5072 | {
|
---|
[1586] | 5073 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 5074 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 5075 |
|
---|
[1021] | 5076 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 5077 |
|
---|
[1586] | 5078 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 5079 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 5080 | }
|
---|
[1021] | 5081 |
|
---|
[1486] | 5082 | /////////////
|
---|
| 5083 | //-- some tasks still to do on the view cells:
|
---|
| 5084 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1696] | 5085 |
|
---|
[1021] | 5086 | if (1) FinalizeViewCells(true);
|
---|
| 5087 |
|
---|
| 5088 | return 0;
|
---|
[859] | 5089 | }
|
---|
| 5090 |
|
---|
[1021] | 5091 |
|
---|
| 5092 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 5093 | {
|
---|
[1021] | 5094 | return VSP_OSP;
|
---|
| 5095 | }
|
---|
[859] | 5096 |
|
---|
[1021] | 5097 |
|
---|
| 5098 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 5099 | {
|
---|
| 5100 | // terminate recursion
|
---|
| 5101 | if (root->IsLeaf())
|
---|
| 5102 | {
|
---|
| 5103 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 5104 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 5105 | return leaf->GetViewCell();
|
---|
| 5106 | }
|
---|
| 5107 |
|
---|
| 5108 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 5109 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 5110 |
|
---|
| 5111 | // evaluate merge cost for priority traversal
|
---|
[1713] | 5112 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
[1021] | 5113 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 5114 |
|
---|
| 5115 | float volume = 0;
|
---|
| 5116 |
|
---|
| 5117 | VspNode *front = interior->GetFront();
|
---|
| 5118 | VspNode *back = interior->GetBack();
|
---|
| 5119 |
|
---|
| 5120 | ObjectPvs frontPvs, backPvs;
|
---|
| 5121 |
|
---|
[1545] | 5122 | /////////
|
---|
[1021] | 5123 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5124 |
|
---|
[1021] | 5125 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5126 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5127 |
|
---|
| 5128 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5129 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5130 |
|
---|
| 5131 | volume += backVc->GetVolume();
|
---|
| 5132 | volume += frontVc->GetVolume();
|
---|
| 5133 |
|
---|
| 5134 | viewCellInterior->SetVolume(volume);
|
---|
| 5135 |
|
---|
| 5136 | return viewCellInterior;
|
---|
| 5137 | }
|
---|
| 5138 |
|
---|
| 5139 |
|
---|
| 5140 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5141 | {
|
---|
| 5142 | if (!ViewCellsConstructed())
|
---|
| 5143 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5144 |
|
---|
| 5145 | // TODO: set reasonable limit
|
---|
| 5146 | const int limit = 20;
|
---|
| 5147 |
|
---|
| 5148 | for (int i = 0; i < limit; ++ i)
|
---|
| 5149 | {
|
---|
| 5150 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5151 |
|
---|
[1278] | 5152 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5153 | {
|
---|
| 5154 | return true;
|
---|
| 5155 | }
|
---|
[904] | 5156 | }
|
---|
[859] | 5157 |
|
---|
[1021] | 5158 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5159 | return false;
|
---|
[884] | 5160 | }
|
---|
| 5161 |
|
---|
| 5162 |
|
---|
[1027] | 5163 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5164 | ViewCell *vc,
|
---|
[1416] | 5165 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5166 | const AxisAlignedPlane *clipPlane
|
---|
| 5167 | ) const
|
---|
[1027] | 5168 | {
|
---|
| 5169 | ViewCellContainer leaves;
|
---|
| 5170 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5171 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5172 |
|
---|
[1047] | 5173 | Plane3 plane;
|
---|
| 5174 | if (clipPlane)
|
---|
[1418] | 5175 | {
|
---|
| 5176 | // arbitrary plane definition
|
---|
[1047] | 5177 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5178 | }
|
---|
[1047] | 5179 |
|
---|
[1027] | 5180 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5181 | {
|
---|
| 5182 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5183 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5184 |
|
---|
[1416] | 5185 | const AxisAlignedBox3 box =
|
---|
[1551] | 5186 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5187 |
|
---|
[1418] | 5188 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5189 | continue;
|
---|
| 5190 |
|
---|
[1047] | 5191 | if (clipPlane)
|
---|
| 5192 | {
|
---|
| 5193 | if (box.Side(plane) == -1)
|
---|
[1144] | 5194 | {
|
---|
[1047] | 5195 | exporter->ExportBox(box);
|
---|
[1144] | 5196 | }
|
---|
[1047] | 5197 | else if (box.Side(plane) == 0)
|
---|
| 5198 | {
|
---|
[1418] | 5199 | // intersection
|
---|
[1047] | 5200 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5201 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5202 | exporter->ExportBox(bbox);
|
---|
| 5203 | }
|
---|
| 5204 | }
|
---|
| 5205 | else
|
---|
| 5206 | {
|
---|
[1027] | 5207 | exporter->ExportBox(box);
|
---|
[1047] | 5208 | }
|
---|
[1027] | 5209 | }
|
---|
| 5210 | }
|
---|
| 5211 |
|
---|
| 5212 |
|
---|
[1021] | 5213 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5214 | {
|
---|
| 5215 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5216 | // validy update in preprocessor for all managers)
|
---|
| 5217 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5218 |
|
---|
[1021] | 5219 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5220 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5221 | }
|
---|
| 5222 |
|
---|
| 5223 |
|
---|
| 5224 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5225 | const VssRayContainer &sampleRays)
|
---|
[859] | 5226 | {
|
---|
[997] | 5227 | if (!ViewCellsConstructed())
|
---|
| 5228 | return;
|
---|
[1027] | 5229 |
|
---|
[1021] | 5230 | VssRayContainer visRays;
|
---|
| 5231 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5232 |
|
---|
[1633] | 5233 | ////////////
|
---|
| 5234 | //-- export final view cells
|
---|
[1106] | 5235 |
|
---|
[1633] | 5236 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5237 |
|
---|
| 5238 | if (exporter)
|
---|
| 5239 | {
|
---|
[1415] | 5240 | // hack color code (show pvs size)
|
---|
[1021] | 5241 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5242 | mColorCode = 0;
|
---|
[859] | 5243 |
|
---|
[1633] | 5244 | const long starttime = GetTime();
|
---|
| 5245 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[1420] | 5246 |
|
---|
[1633] | 5247 | // matt: hack for clamping scene
|
---|
| 5248 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
| 5249 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1703] | 5250 |
|
---|
[1633] | 5251 | if (CLAMP_TO_BOX)
|
---|
| 5252 | {
|
---|
| 5253 | exporter->SetWireframe();
|
---|
| 5254 | exporter->ExportBox(bbox);
|
---|
| 5255 | exporter->SetFilled();
|
---|
[1021] | 5256 | }
|
---|
| 5257 |
|
---|
[1633] | 5258 | if (0 && mExportGeometry)
|
---|
| 5259 | {
|
---|
| 5260 | exporter->ExportGeometry(objects, true, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5261 | }
|
---|
| 5262 |
|
---|
| 5263 | if (1 && mExportRays)
|
---|
| 5264 | {
|
---|
| 5265 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5266 | }
|
---|
| 5267 |
|
---|
[1703] | 5268 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter,
|
---|
| 5269 | objects, CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
[1633] | 5270 | ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, GetClipPlane());
|
---|
| 5271 |
|
---|
| 5272 | delete exporter;
|
---|
| 5273 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5274 | mColorCode = savedColorCode;
|
---|
| 5275 | }
|
---|
| 5276 |
|
---|
[1633] | 5277 | // export final object partition
|
---|
| 5278 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5279 |
|
---|
| 5280 | if (exporter)
|
---|
[1287] | 5281 | {
|
---|
[1633] | 5282 | const long starttime = GetTime();
|
---|
[1287] | 5283 |
|
---|
[1633] | 5284 | // matt: hack for making visualization smaller in size
|
---|
| 5285 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
| 5286 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1415] | 5287 |
|
---|
[1633] | 5288 | cout << "exporting object space hierarchy ... ";
|
---|
| 5289 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
| 5290 |
|
---|
| 5291 | delete exporter;
|
---|
| 5292 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5293 | }
|
---|
[1633] | 5294 |
|
---|
[1121] | 5295 |
|
---|
[1633] | 5296 | // visualization of the view cells
|
---|
| 5297 | if (0) ExportMergedViewCells(objects);
|
---|
| 5298 |
|
---|
[1570] | 5299 | // export some view cell
|
---|
[1021] | 5300 | int leafOut;
|
---|
| 5301 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1570] | 5302 | const int raysOut = 100;
|
---|
[580] | 5303 |
|
---|
[1570] | 5304 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
| 5305 | }
|
---|
[1021] | 5306 |
|
---|
| 5307 |
|
---|
[1570] | 5308 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5309 | const int maxViewCells,
|
---|
| 5310 | const bool sortViewCells,
|
---|
| 5311 | const bool exportPvs,
|
---|
| 5312 | const bool exportRays,
|
---|
| 5313 | const int maxRays,
|
---|
| 5314 | const string prefix,
|
---|
| 5315 | VssRayContainer *visRays)
|
---|
| 5316 | {
|
---|
| 5317 | if (sortViewCells)
|
---|
[697] | 5318 | {
|
---|
[1415] | 5319 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1021] | 5320 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5321 | }
|
---|
| 5322 |
|
---|
[1570] | 5323 | ViewCell::NewMail();
|
---|
| 5324 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 5325 |
|
---|
[1570] | 5326 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 5327 |
|
---|
[1021] | 5328 | for (int i = 0; i < limit; ++ i)
|
---|
| 5329 | {
|
---|
| 5330 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5331 |
|
---|
| 5332 | // largest view cell pvs first of random view cell
|
---|
[1570] | 5333 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 5334 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5335 |
|
---|
[1570] | 5336 | if (vc->Mailed()) // already used
|
---|
| 5337 | continue;
|
---|
| 5338 |
|
---|
| 5339 | vc->Mail();
|
---|
| 5340 |
|
---|
[1021] | 5341 | ObjectPvs pvs;
|
---|
| 5342 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5343 |
|
---|
[1570] | 5344 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 5345 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5346 |
|
---|
[1709] | 5347 | cout << "view cell " << vc->GetId() << ": pvs cost=" << mViewCellsTree->GetPvsCost(vc) << endl;
|
---|
[1021] | 5348 |
|
---|
[1570] | 5349 | if (exportPvs)
|
---|
| 5350 | {
|
---|
| 5351 | Material m;
|
---|
[1418] | 5352 |
|
---|
[1570] | 5353 | Intersectable::NewMail();
|
---|
| 5354 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
| 5355 |
|
---|
| 5356 | // output PVS of view cell
|
---|
| 5357 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 5358 | {
|
---|
| 5359 | Intersectable *intersect = (*oit).first;
|
---|
| 5360 | if (!intersect->Mailed())
|
---|
| 5361 | {
|
---|
| 5362 | m = RandomMaterial();
|
---|
| 5363 | exporter->SetForcedMaterial(m);
|
---|
| 5364 |
|
---|
| 5365 | exporter->ExportIntersectable(intersect);
|
---|
| 5366 | intersect->Mail();
|
---|
| 5367 | }
|
---|
| 5368 | }
|
---|
| 5369 | }
|
---|
| 5370 |
|
---|
| 5371 | if (exportRays)
|
---|
[1021] | 5372 | {
|
---|
[1570] | 5373 | ////////////
|
---|
| 5374 | //-- export the sample rays
|
---|
| 5375 |
|
---|
[1021] | 5376 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 5377 | VssRayContainer vcRays;
|
---|
| 5378 | VssRayContainer collectRays;
|
---|
[1021] | 5379 |
|
---|
[1570] | 5380 | // collect intial view cells
|
---|
| 5381 | ViewCellContainer leaves;
|
---|
| 5382 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 5383 |
|
---|
[1570] | 5384 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 5385 |
|
---|
[1570] | 5386 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5387 | {
|
---|
| 5388 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5389 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5390 |
|
---|
| 5391 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 5392 | {
|
---|
[1570] | 5393 | collectRays.push_back(*rit);
|
---|
[1021] | 5394 | }
|
---|
[1570] | 5395 | }
|
---|
[1021] | 5396 |
|
---|
[1570] | 5397 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 5398 |
|
---|
[1570] | 5399 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 5400 |
|
---|
[1570] | 5401 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5402 | {
|
---|
| 5403 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5404 |
|
---|
| 5405 | if (p < raysOut)
|
---|
| 5406 | vcRays.push_back(*rit);
|
---|
[1021] | 5407 | }
|
---|
[1570] | 5408 |
|
---|
| 5409 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 5410 | }
|
---|
[1570] | 5411 |
|
---|
| 5412 |
|
---|
[1415] | 5413 | /////////////////
|
---|
[1021] | 5414 | //-- export view cell geometry
|
---|
[1121] | 5415 |
|
---|
[697] | 5416 | exporter->SetWireframe();
|
---|
| 5417 |
|
---|
[1416] | 5418 | Material m;
|
---|
[1021] | 5419 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5420 | exporter->SetForcedMaterial(m);
|
---|
| 5421 |
|
---|
[1416] | 5422 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5423 | exporter->SetFilled();
|
---|
| 5424 |
|
---|
[1021] | 5425 | DEL_PTR(exporter);
|
---|
| 5426 | cout << "finished" << endl;
|
---|
[697] | 5427 | }
|
---|
[1021] | 5428 |
|
---|
[1570] | 5429 | cout << endl;
|
---|
[697] | 5430 | }
|
---|
| 5431 |
|
---|
| 5432 |
|
---|
[1021] | 5433 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5434 | ViewCellContainer &viewCells) const
|
---|
| 5435 | {
|
---|
[1278] | 5436 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5437 | }
|
---|
[580] | 5438 |
|
---|
[1021] | 5439 |
|
---|
| 5440 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5441 | const Vector3 &termination,
|
---|
| 5442 | ViewCellContainer &viewcells)
|
---|
| 5443 | {
|
---|
[1278] | 5444 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5445 | }
|
---|
| 5446 |
|
---|
| 5447 |
|
---|
| 5448 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5449 | const bool exportPvs,
|
---|
| 5450 | const ObjectContainer &objects)
|
---|
| 5451 | {
|
---|
| 5452 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5453 | return false;
|
---|
| 5454 |
|
---|
[1415] | 5455 | const long starttime = GetTime();
|
---|
[1021] | 5456 | cout << "exporting view cells to xml ... ";
|
---|
| 5457 |
|
---|
[1201] | 5458 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5459 |
|
---|
| 5460 | // for output we need unique ids for each view cell
|
---|
| 5461 | CreateUniqueViewCellIds();
|
---|
| 5462 |
|
---|
| 5463 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5464 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5465 |
|
---|
[1580] | 5466 | if (exportPvs)
|
---|
| 5467 | {
|
---|
| 5468 | ///////////////
|
---|
| 5469 | //-- export bounding boxes
|
---|
| 5470 | //-- The bounding boxes are used to identify
|
---|
| 5471 | //-- the objects in the rendering engine
|
---|
[1614] | 5472 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 5473 | }
|
---|
[1021] | 5474 |
|
---|
[1415] | 5475 | //////////////////////////
|
---|
[1021] | 5476 | //-- export the view cells and the pvs
|
---|
| 5477 |
|
---|
| 5478 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5479 |
|
---|
| 5480 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5481 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5482 | stream << "</ViewCells>" << endl;
|
---|
| 5483 |
|
---|
[1415] | 5484 | //////////////////////
|
---|
[1201] | 5485 | //-- export the view space hierarchy
|
---|
[1021] | 5486 |
|
---|
[1262] | 5487 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5488 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5489 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5490 |
|
---|
[1278] | 5491 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5492 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5493 |
|
---|
[1415] | 5494 | //////////////////////
|
---|
[1201] | 5495 | //-- export the object space partition
|
---|
| 5496 |
|
---|
[1278] | 5497 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5498 |
|
---|
[1201] | 5499 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5500 | stream.close();
|
---|
[1201] | 5501 |
|
---|
[1415] | 5502 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5503 | return true;
|
---|
| 5504 | }
|
---|
| 5505 |
|
---|
| 5506 |
|
---|
| 5507 |
|
---|
[1027] | 5508 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5509 | const bool active) const
|
---|
[1021] | 5510 | {
|
---|
| 5511 | if (!ViewCellsConstructed())
|
---|
| 5512 | return NULL;
|
---|
[1588] | 5513 |
|
---|
[1021] | 5514 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5515 | return NULL;
|
---|
[1588] | 5516 |
|
---|
[1278] | 5517 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5518 | }
|
---|
| 5519 |
|
---|
| 5520 |
|
---|
| 5521 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5522 | {
|
---|
| 5523 | // matt: TODO
|
---|
| 5524 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5525 |
|
---|
| 5526 | ViewCellContainer leaves;
|
---|
| 5527 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5528 |
|
---|
| 5529 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5530 |
|
---|
| 5531 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5532 | {
|
---|
[1551] | 5533 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 5534 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5535 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5536 | }
|
---|
| 5537 |
|
---|
[1021] | 5538 | vc->SetMesh(mesh);
|
---|
| 5539 | }
|
---|
| 5540 |
|
---|
| 5541 |
|
---|
| 5542 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5543 | {
|
---|
| 5544 | // matt: TODO
|
---|
| 5545 | return 0;
|
---|
| 5546 | }
|
---|
| 5547 |
|
---|
| 5548 |
|
---|
[1667] | 5549 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
[1021] | 5550 | {
|
---|
| 5551 | float area = 0;
|
---|
| 5552 | float volume = 0;
|
---|
| 5553 |
|
---|
| 5554 | ViewCellContainer leaves;
|
---|
| 5555 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5556 |
|
---|
| 5557 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5558 |
|
---|
| 5559 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5560 | {
|
---|
[1551] | 5561 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 5562 |
|
---|
[1278] | 5563 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 5564 |
|
---|
[1027] | 5565 | const float lVol = box.GetVolume();
|
---|
| 5566 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5567 |
|
---|
| 5568 | area += lArea;
|
---|
| 5569 | volume += lVol;
|
---|
| 5570 |
|
---|
| 5571 | CreateMesh(*it);
|
---|
[580] | 5572 | }
|
---|
| 5573 |
|
---|
[1021] | 5574 | viewCell->SetVolume(volume);
|
---|
| 5575 | viewCell->SetArea(area);
|
---|
[580] | 5576 | }
|
---|
[1021] | 5577 |
|
---|
[580] | 5578 |
|
---|
[1159] | 5579 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5580 | const bool addRays,
|
---|
| 5581 | const bool storeViewCells)
|
---|
| 5582 | {
|
---|
| 5583 | ViewCellContainer viewcells;
|
---|
| 5584 |
|
---|
| 5585 | ray.mPvsContribution = 0;
|
---|
| 5586 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5587 |
|
---|
| 5588 | static Ray hray;
|
---|
| 5589 | hray.Init(ray);
|
---|
| 5590 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5591 | //Ray hray(ray);
|
---|
| 5592 |
|
---|
| 5593 | float tmin = 0, tmax = 1.0;
|
---|
| 5594 |
|
---|
| 5595 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5596 | return 0;
|
---|
| 5597 |
|
---|
| 5598 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5599 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5600 |
|
---|
[1291] | 5601 | ViewCell::NewMail();
|
---|
| 5602 |
|
---|
[1159] | 5603 | // traverse the view space subdivision
|
---|
| 5604 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5605 |
|
---|
| 5606 | if (storeViewCells)
|
---|
[1291] | 5607 | {
|
---|
| 5608 | // copy viewcells memory efficiently
|
---|
[1159] | 5609 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5610 | ray.mViewCells = viewcells;
|
---|
| 5611 | }
|
---|
| 5612 |
|
---|
| 5613 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5614 |
|
---|
| 5615 | for (; it != viewcells.end(); ++ it)
|
---|
| 5616 | {
|
---|
| 5617 | ViewCell *viewcell = *it;
|
---|
[1666] | 5618 |
|
---|
[1159] | 5619 | if (viewcell->GetValid())
|
---|
[1566] | 5620 | { // if ray not outside of view space
|
---|
[1159] | 5621 | float contribution;
|
---|
| 5622 |
|
---|
| 5623 | if (ray.mTerminationObject)
|
---|
| 5624 | {
|
---|
[1666] | 5625 | // todo: maybe not correct for kd node pvs
|
---|
| 5626 | Intersectable *obj = mHierarchyManager->GetIntersectable(ray, true);
|
---|
| 5627 |
|
---|
| 5628 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 5629 | ray.mPdf,
|
---|
| 5630 | contribution))
|
---|
[1159] | 5631 | {
|
---|
[1666] | 5632 | ++ ray.mPvsContribution;
|
---|
[1159] | 5633 | }
|
---|
[1666] | 5634 |
|
---|
| 5635 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5636 | }
|
---|
[1666] | 5637 |
|
---|
[1686] | 5638 | ////////////////
|
---|
[1666] | 5639 | //-- for directional sampling it is important to count only contributions
|
---|
| 5640 | //-- made in one direction!
|
---|
| 5641 | //-- the other contributions of this sample will be counted for the opposite ray!
|
---|
[1166] | 5642 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1159] | 5643 | if (ray.mOriginObject &&
|
---|
| 5644 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
[1666] | 5645 | ray.mPdf,
|
---|
| 5646 | contribution))
|
---|
[1159] | 5647 | {
|
---|
| 5648 | ++ ray.mPvsContribution;
|
---|
[1582] | 5649 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5650 | }
|
---|
| 5651 | #endif
|
---|
| 5652 | }
|
---|
| 5653 | }
|
---|
| 5654 |
|
---|
[1259] | 5655 | if (!addRays)
|
---|
[1566] | 5656 | {
|
---|
[1259] | 5657 | return ray.mRelativePvsContribution;
|
---|
[1566] | 5658 | }
|
---|
[1259] | 5659 |
|
---|
| 5660 | // sampled objects are stored in the pvs
|
---|
| 5661 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 5662 | {
|
---|
[1259] | 5663 | ViewCell *viewCell = *it;
|
---|
[1159] | 5664 |
|
---|
[1259] | 5665 | if (!viewCell->GetValid())
|
---|
| 5666 | break;
|
---|
[1159] | 5667 |
|
---|
[1259] | 5668 | AddSampleToPvs(
|
---|
| 5669 | ray.mTerminationObject,
|
---|
| 5670 | ray.mTermination,
|
---|
| 5671 | viewCell,
|
---|
| 5672 | ray.mPdf,
|
---|
| 5673 | ray.mRelativePvsContribution);
|
---|
| 5674 |
|
---|
[1166] | 5675 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1168] | 5676 |
|
---|
[1259] | 5677 | AddSampleToPvs(
|
---|
| 5678 | ray.mOriginObject,
|
---|
| 5679 | ray.mOrigin,
|
---|
| 5680 | viewCell,
|
---|
| 5681 | ray.mPdf,
|
---|
| 5682 | ray.mRelativePvsContribution);
|
---|
| 5683 | #endif
|
---|
[1159] | 5684 | }
|
---|
| 5685 |
|
---|
[1715] | 5686 |
|
---|
| 5687 |
|
---|
| 5688 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
| 5689 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
[1159] | 5690 | }
|
---|
| 5691 |
|
---|
| 5692 |
|
---|
[1259] | 5693 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 5694 | const Vector3 &hitPoint,
|
---|
| 5695 | ViewCell *vc,
|
---|
| 5696 | const float pdf,
|
---|
| 5697 | float &contribution) const
|
---|
| 5698 | {
|
---|
[1486] | 5699 | // The hierarchy manager decides about the type of sample cast
|
---|
[1278] | 5700 | return mHierarchyManager->AddSampleToPvs(obj, hitPoint, vc, pdf, contribution);
|
---|
[1259] | 5701 | }
|
---|
| 5702 |
|
---|
| 5703 |
|
---|
[1021] | 5704 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5705 | {
|
---|
| 5706 | // TODO
|
---|
| 5707 | }
|
---|
[580] | 5708 |
|
---|
[1201] | 5709 |
|
---|
| 5710 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5711 | ObjectContainer *objects,
|
---|
| 5712 | const bool finalizeViewCells,
|
---|
| 5713 | BoundingBoxConverter *bconverter)
|
---|
| 5714 |
|
---|
| 5715 | {
|
---|
| 5716 | ViewCellsManager *vm =
|
---|
| 5717 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 5718 | #if 0
|
---|
| 5719 | // insert scene objects in tree
|
---|
[1201] | 5720 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 5721 | #endif
|
---|
[1201] | 5722 | return vm;
|
---|
| 5723 | }
|
---|
| 5724 |
|
---|
[1692] | 5725 |
|
---|
[1709] | 5726 | #if 1
|
---|
[1184] | 5727 | #if TEST_EVALUATION
|
---|
[1178] | 5728 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5729 | {
|
---|
[1570] | 5730 | const int castSamples = (int)storedRays.size();
|
---|
[1178] | 5731 | char s[64];
|
---|
| 5732 | char statsPrefix[100];
|
---|
[1180] | 5733 |
|
---|
[1178] | 5734 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
| 5735 |
|
---|
| 5736 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 5737 |
|
---|
| 5738 | // should directional sampling be used?
|
---|
[1576] | 5739 | const bool dirSamples = (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[1178] | 5740 |
|
---|
| 5741 | cout << "reseting pvs ... ";
|
---|
| 5742 | const bool startFromZero = true;
|
---|
| 5743 |
|
---|
| 5744 | if (startFromZero)
|
---|
| 5745 | {
|
---|
[1627] | 5746 | // reset pvs and start over from zero
|
---|
[1178] | 5747 | mViewCellsTree->ResetPvs();
|
---|
| 5748 | }
|
---|
[1444] | 5749 | else
|
---|
[1178] | 5750 | {
|
---|
| 5751 | // statistics before casting more samples
|
---|
| 5752 | cout << "compute new statistics ... ";
|
---|
| 5753 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5754 | string fName = string(statsPrefix) + string(s);
|
---|
| 5755 |
|
---|
| 5756 | mViewCellsTree->ExportStats(fName);
|
---|
| 5757 | cout << "finished" << endl;
|
---|
| 5758 | }
|
---|
| 5759 | cout << "finished" << endl;
|
---|
| 5760 |
|
---|
| 5761 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 5762 |
|
---|
| 5763 | VssRayContainer evaluationSamples = storedRays;
|
---|
| 5764 | const int samplingType = mEvaluationSamplingType;
|
---|
| 5765 |
|
---|
| 5766 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1486] | 5767 |
|
---|
[1178] | 5768 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
[1486] | 5769 |
|
---|
[1178] | 5770 | cout << "finished" << endl;
|
---|
| 5771 |
|
---|
| 5772 | cout << "compute new statistics ... ";
|
---|
[1486] | 5773 |
|
---|
[1221] | 5774 | // propagate pvs or pvs size information
|
---|
[1178] | 5775 | ObjectPvs pvs;
|
---|
| 5776 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 5777 |
|
---|
| 5778 |
|
---|
[1486] | 5779 | /////////////////////
|
---|
| 5780 | // $§temporary matt: test render cost
|
---|
| 5781 |
|
---|
[1259] | 5782 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5783 | string fileName = string(statsPrefix) + string(s);
|
---|
[1178] | 5784 |
|
---|
[1259] | 5785 | ViewCellContainer leaves;
|
---|
[1184] | 5786 |
|
---|
[1259] | 5787 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5788 | float rc = 0;
|
---|
[1421] | 5789 |
|
---|
[1259] | 5790 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1421] | 5791 |
|
---|
[1259] | 5792 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5793 | {
|
---|
| 5794 | ViewCell *vc = *vit;
|
---|
[1709] | 5795 | const float pvsCost = vc->GetPvs().EvalPvsCost();
|
---|
| 5796 | const float vol = vc->GetVolume();
|
---|
| 5797 | rc += pvsCost * vol;
|
---|
[1184] | 5798 | }
|
---|
| 5799 |
|
---|
[1576] | 5800 | Debug << "\nrendercost hack: " << rc / mViewSpaceBox.GetVolume() << endl;
|
---|
[1178] | 5801 | mViewCellsTree->ExportStats(fileName);
|
---|
| 5802 | cout << "finished" << endl;
|
---|
| 5803 |
|
---|
| 5804 | disposeRays(evaluationSamples, NULL);
|
---|
| 5805 | }
|
---|
[580] | 5806 |
|
---|
[1686] | 5807 | #else
|
---|
| 5808 |
|
---|
| 5809 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5810 | {
|
---|
| 5811 | int samplesPerPass;
|
---|
| 5812 | int numSamples;
|
---|
| 5813 | int castSamples = 0;
|
---|
[1713] | 5814 | int splitsStepSize;
|
---|
[1686] | 5815 |
|
---|
[1713] | 5816 | char str[64];
|
---|
| 5817 |
|
---|
[1686] | 5818 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 5819 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[1713] | 5820 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.stepSize", splitsStepSize);
|
---|
[1686] | 5821 |
|
---|
| 5822 | char statsPrefix[100];
|
---|
| 5823 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
| 5824 |
|
---|
| 5825 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 5826 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 5827 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
[1717] | 5828 | Debug << "step size: " << splitsStepSize << endl;
|
---|
[1686] | 5829 |
|
---|
| 5830 | cout << "reseting pvs ... ";
|
---|
| 5831 |
|
---|
| 5832 | const bool startFromZero = true;
|
---|
| 5833 |
|
---|
| 5834 | // reset pvs and start over from zero
|
---|
| 5835 | if (startFromZero)
|
---|
| 5836 | {
|
---|
| 5837 | mViewCellsTree->ResetPvs();
|
---|
| 5838 | }
|
---|
| 5839 | else // start from current sampless
|
---|
| 5840 | {
|
---|
| 5841 | // statistics before casting more samples
|
---|
| 5842 | cout << "compute new statistics ... ";
|
---|
| 5843 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 5844 | string fName = string(statsPrefix) + string(str);
|
---|
| 5845 |
|
---|
| 5846 | mViewCellsTree->ExportStats(fName);
|
---|
| 5847 | cout << "finished" << endl;
|
---|
| 5848 | }
|
---|
| 5849 |
|
---|
| 5850 | cout << "finished" << endl;
|
---|
| 5851 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 5852 |
|
---|
| 5853 | while (castSamples < numSamples)
|
---|
| 5854 | {
|
---|
[1713] | 5855 | VssRayContainer evaluationSamples;
|
---|
| 5856 |
|
---|
[1686] | 5857 | ///////////////
|
---|
| 5858 | //-- we have to use uniform sampling strategy for construction rays
|
---|
| 5859 |
|
---|
[1692] | 5860 | //VssRayContainer evaluationSamples;
|
---|
[1686] | 5861 | const int samplingType = mEvaluationSamplingType;
|
---|
| 5862 |
|
---|
| 5863 | long startTime = GetTime();
|
---|
| 5864 |
|
---|
| 5865 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 5866 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 5867 |
|
---|
| 5868 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 5869 |
|
---|
| 5870 | castSamples += samplesPerPass;
|
---|
| 5871 |
|
---|
| 5872 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 5873 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 5874 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 5875 |
|
---|
| 5876 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 5877 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 5878 |
|
---|
| 5879 | startTime = GetTime();
|
---|
| 5880 |
|
---|
| 5881 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 5882 |
|
---|
| 5883 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 5884 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 5885 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 5886 |
|
---|
| 5887 | startTime = GetTime();
|
---|
| 5888 | cout << "compute new statistics ... " << endl;
|
---|
| 5889 |
|
---|
| 5890 | ///////////
|
---|
| 5891 | //-- output stats
|
---|
| 5892 |
|
---|
[1713] | 5893 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
[1710] | 5894 | const string splitsFilename = string(statsPrefix) + string(str);
|
---|
| 5895 |
|
---|
| 5896 | ofstream splitsStr(splitsFilename.c_str());
|
---|
[1713] | 5897 | mHierarchyManager->EvaluateSubdivision2(splitsStr, splitsStepSize);
|
---|
[1710] | 5898 |
|
---|
[1686] | 5899 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 5900 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1713] | 5901 | Debug << "statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1686] | 5902 |
|
---|
[1709] | 5903 | disposeRays(evaluationSamples, NULL);
|
---|
[1686] | 5904 | }
|
---|
| 5905 | }
|
---|
[1551] | 5906 | #endif
|
---|
[1686] | 5907 | #endif
|
---|
[878] | 5908 | }
|
---|