[447] | 1 | #include "SceneGraph.h"
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| 2 | #include "KdTree.h"
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| 3 | #include "RssPreprocessor.h"
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| 4 | #include "X3dExporter.h"
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| 5 | #include "Environment.h"
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| 6 | #include "MutualVisibility.h"
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| 7 | #include "Polygon3.h"
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| 8 | #include "ViewCell.h"
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| 9 | #include "VssRay.h"
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| 10 | #include "RssTree.h"
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[451] | 11 | #include "ViewCellsManager.h"
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[452] | 12 | #include "RenderSimulator.h"
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[492] | 13 | #include "GlRenderer.h"
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[1520] | 14 | #include "SamplingStrategy.h"
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[1867] | 15 | #include "PreprocessorThread.h"
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[447] | 16 |
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[1520] | 17 |
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[863] | 18 | namespace GtpVisibilityPreprocessor {
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[860] | 19 |
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| 20 |
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[1883] | 21 |
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[1876] | 22 | const bool pruneInvalidRays = false;
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[1867] | 23 |
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[1876] | 24 |
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[1199] | 25 | #define ADD_RAYS_IN_PLACE 1
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[1112] | 26 |
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[447] | 27 | RssPreprocessor::RssPreprocessor():
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| 28 | mVssRays()
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| 29 | {
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| 30 | // this should increase coherence of the samples
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[1004] | 31 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.samplesPerPass", mSamplesPerPass);
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| 32 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.initialSamples", mInitialSamples);
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| 33 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.vssSamples", mRssSamples);
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| 34 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.vssSamplesPerPass", mRssSamplesPerPass);
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| 35 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useImportanceSampling", mUseImportanceSampling);
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[464] | 36 |
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[1785] | 37 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useRssTree",
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| 38 | mUseRssTree);
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| 39 |
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[1004] | 40 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.pvs", mExportPvs);
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| 41 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.rssTree", mExportRssTree);
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| 42 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.rays", mExportRays);
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| 43 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.Export.numRays", mExportNumRays);
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| 44 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useViewcells", mUseViewcells);
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| 45 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.objectBasedSampling", mObjectBasedSampling);
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| 46 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.directionalSampling", mDirectionalSampling);
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[464] | 47 |
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[1004] | 48 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.loadInitialSamples", mLoadInitialSamples);
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[1785] | 49 |
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[1004] | 50 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.storeInitialSamples", mStoreInitialSamples);
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[1785] | 51 |
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[1004] | 52 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.updateSubdivision", mUpdateSubdivision);
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[464] | 53 |
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[563] | 54 | mRssTree = NULL;
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| 55 | }
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[492] | 56 |
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[563] | 57 |
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[1765] | 58 | int
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[563] | 59 | RssPreprocessor::GenerateRays(
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| 60 | const int number,
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[1867] | 61 | SamplingStrategy &strategy,
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| 62 | SimpleRayContainer &rays)
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[563] | 63 | {
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[1765] | 64 | int result = 0;
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[1715] | 65 |
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| 66 | Debug<<"Generate rays...\n"<<flush;
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[563] | 67 |
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[1867] | 68 | switch (strategy.mType) {
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[1520] | 69 | case SamplingStrategy::RSS_BASED_DISTRIBUTION:
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| 70 | case SamplingStrategy::RSS_SILHOUETTE_BASED_DISTRIBUTION:
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[1877] | 71 | if (mRssTree) {
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| 72 | result = GenerateImportanceRays(mRssTree, number, rays);
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| 73 | }
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| 74 | break;
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| 75 |
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[563] | 76 | default:
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[1867] | 77 | result = Preprocessor::GenerateRays(number, strategy, rays);
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[563] | 78 | }
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[1867] | 79 |
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[1112] | 80 | // rays.NormalizePdf();
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[1715] | 81 | Debug<<"done.\n"<<flush;
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| 82 |
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[563] | 83 | return result;
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[447] | 84 | }
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| 85 |
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[563] | 86 |
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| 87 |
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[1715] | 88 |
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[447] | 89 | RssPreprocessor::~RssPreprocessor()
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| 90 | {
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[492] | 91 | // mVssRays get deleted in the tree
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| 92 | // CLEAR_CONTAINER(mVssRays);
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[447] | 93 | }
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| 94 |
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| 95 |
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[576] | 96 | void
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| 97 | RssPreprocessor::ExportObjectRays(VssRayContainer &rays,
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| 98 | const int objectId)
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| 99 | {
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| 100 | ObjectContainer::const_iterator oi;
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[447] | 101 |
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[576] | 102 | Intersectable *object = NULL;
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| 103 | for (oi = mObjects.begin(); oi != mObjects.end(); ++oi)
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| 104 | if (objectId == (*oi)->GetId()) {
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| 105 | object = *oi;
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| 106 | break;
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| 107 | }
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[447] | 108 |
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[576] | 109 | if (object == NULL)
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| 110 | return;
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| 111 |
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| 112 | VssRayContainer selectedRays;
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| 113 | VssRayContainer::const_iterator it= rays.begin(), it_end = rays.end();
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| 114 |
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| 115 |
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| 116 | for (; it != it_end; ++it) {
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| 117 | if ((*it)->mTerminationObject == object)
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| 118 | selectedRays.push_back(*it);
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| 119 | }
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| 120 |
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| 121 |
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| 122 | Exporter *exporter = Exporter::GetExporter("object-rays.x3d");
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| 123 | // exporter->SetWireframe();
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| 124 | // exporter->ExportKdTree(*mKdTree);
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| 125 | exporter->SetFilled();
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| 126 | exporter->ExportIntersectable(object);
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| 127 | exporter->ExportRays(selectedRays, RgbColor(1, 0, 0));
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| 128 |
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| 129 | delete exporter;
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| 130 |
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| 131 | }
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| 132 |
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| 133 |
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[447] | 134 | int
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| 135 | RssPreprocessor::GenerateImportanceRays(RssTree *rssTree,
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| 136 | const int desiredSamples,
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| 137 | SimpleRayContainer &rays
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| 138 | )
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| 139 | {
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| 140 | int num;
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[463] | 141 |
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[492] | 142 | rssTree->UpdateTreeStatistics();
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[463] | 143 |
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[447] | 144 | cout<<
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[492] | 145 | "#RSS_AVG_PVS_SIZE\n"<<rssTree->stat.avgPvsSize<<endl<<
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| 146 | "#RSS_AVG_RAYS\n"<<rssTree->stat.avgRays<<endl<<
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| 147 | "#RSS_AVG_RAY_CONTRIB\n"<<rssTree->stat.avgRayContribution<<endl<<
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| 148 | "#RSS_AVG_PVS_ENTROPY\n"<<rssTree->stat.avgPvsEntropy<<endl<<
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| 149 | "#RSS_AVG_RAY_LENGTH_ENTROPY\n"<<rssTree->stat.avgRayLengthEntropy<<endl<<
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| 150 | "#RSS_AVG_IMPORTANCE\n"<<rssTree->stat.avgImportance<<endl;
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[447] | 151 |
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| 152 | if (0) {
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[492] | 153 | float p = desiredSamples/(float)(rssTree->stat.avgRayContribution*rssTree->stat.Leaves());
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[447] | 154 | num = rssTree->GenerateRays(p, rays);
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| 155 | } else {
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[459] | 156 | int leaves = rssTree->stat.Leaves()/1;
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[1112] | 157 |
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[447] | 158 | num = rssTree->GenerateRays(desiredSamples, leaves, rays);
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| 159 | }
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| 160 |
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| 161 |
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| 162 | return num;
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| 163 | }
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| 164 |
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| 165 |
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| 166 |
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[1112] | 167 | bool
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| 168 | RssPreprocessor::ExportRayAnimation(const char *filename,
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| 169 | const vector<VssRayContainer> &vssRays
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| 170 | )
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| 171 | {
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| 172 | cout<<"Exporting vss rays..."<<endl<<flush;
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| 173 |
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| 174 | Exporter *exporter = NULL;
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| 175 | exporter = Exporter::GetExporter(filename);
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| 176 | if (0) {
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| 177 | exporter->SetWireframe();
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| 178 | exporter->ExportKdTree(*mKdTree);
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| 179 | }
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| 180 | exporter->SetFilled();
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| 181 | // $$JB temporarily do not export the scene
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| 182 | if (1)
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[1328] | 183 | exporter->ExportScene(mSceneGraph->GetRoot());
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[1112] | 184 | exporter->SetWireframe();
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[447] | 185 |
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[1563] | 186 | if (1) {
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[1112] | 187 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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| 188 | exporter->ExportBox(mViewCellsManager->GetViewSpaceBox());
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| 189 | exporter->ResetForcedMaterial();
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| 190 | }
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| 191 |
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| 192 | exporter->ExportRaySets(vssRays, RgbColor(1, 0, 0));
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| 193 |
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| 194 | delete exporter;
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| 195 |
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| 196 | cout<<"done."<<endl<<flush;
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| 197 |
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| 198 | return true;
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| 199 | }
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| 200 |
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| 201 |
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[447] | 202 | bool
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| 203 | RssPreprocessor::ExportRssTree(char *filename,
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| 204 | RssTree *tree,
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| 205 | const Vector3 &dir
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| 206 | )
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| 207 | {
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| 208 | Exporter *exporter = Exporter::GetExporter(filename);
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| 209 | exporter->SetFilled();
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[1328] | 210 | exporter->ExportScene(mSceneGraph->GetRoot());
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[447] | 211 | // exporter->SetWireframe();
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| 212 | bool result = exporter->ExportRssTree2( *tree, dir );
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| 213 | delete exporter;
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| 214 | return result;
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| 215 | }
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| 216 |
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| 217 | bool
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| 218 | RssPreprocessor::ExportRssTreeLeaf(char *filename,
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| 219 | RssTree *tree,
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| 220 | RssTreeLeaf *leaf)
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| 221 | {
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| 222 | Exporter *exporter = NULL;
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| 223 | exporter = Exporter::GetExporter(filename);
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| 224 | exporter->SetWireframe();
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| 225 | exporter->ExportKdTree(*mKdTree);
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| 226 |
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| 227 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 228 | exporter->ExportBox(tree->GetBBox(leaf));
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| 229 | exporter->ResetForcedMaterial();
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| 230 |
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| 231 | VssRayContainer rays[4];
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| 232 | for (int i=0; i < leaf->rays.size(); i++) {
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| 233 | int k = leaf->rays[i].GetRayClass();
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| 234 | rays[k].push_back(leaf->rays[i].mRay);
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| 235 | }
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| 236 |
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| 237 | // SOURCE RAY
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| 238 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
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| 239 | // TERMINATION RAY
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| 240 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
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| 241 | // PASSING_RAY
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| 242 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
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| 243 | // CONTAINED_RAY
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| 244 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
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| 245 |
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| 246 | delete exporter;
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| 247 | return true;
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| 248 | }
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| 249 |
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| 250 | void
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| 251 | RssPreprocessor::ExportRssTreeLeaves(RssTree *tree, const int number)
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| 252 | {
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| 253 | vector<RssTreeLeaf *> leaves;
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| 254 | tree->CollectLeaves(leaves);
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| 255 |
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| 256 | int num = 0;
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| 257 | int i;
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| 258 | float p = number / (float)leaves.size();
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| 259 | for (i=0; i < leaves.size(); i++) {
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| 260 | if (RandomValue(0,1) < p) {
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| 261 | char filename[64];
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| 262 | sprintf(filename, "rss-leaf-%04d.x3d", num);
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| 263 | ExportRssTreeLeaf(filename, tree, leaves[i]);
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| 264 | num++;
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| 265 | }
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| 266 | if (num >= number)
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| 267 | break;
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| 268 | }
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| 269 | }
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| 270 |
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| 271 |
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| 272 | float
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| 273 | RssPreprocessor::GetAvgPvsSize(RssTree *tree,
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| 274 | const vector<AxisAlignedBox3> &viewcells
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| 275 | )
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| 276 | {
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| 277 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
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| 278 |
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| 279 | int sum = 0;
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| 280 | for (it = viewcells.begin(); it != it_end; ++ it)
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| 281 | sum += tree->GetPvsSize(*it);
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| 282 |
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| 283 | return sum/(float)viewcells.size();
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| 284 | }
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| 285 |
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| 286 |
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| 287 | void
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| 288 | RssPreprocessor::ExportPvs(char *filename,
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| 289 | RssTree *rssTree
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| 290 | )
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| 291 | {
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| 292 | ObjectContainer pvs;
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| 293 | if (rssTree->CollectRootPvs(pvs)) {
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| 294 | Exporter *exporter = Exporter::GetExporter(filename);
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| 295 | exporter->SetFilled();
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| 296 | exporter->ExportGeometry(pvs);
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[459] | 297 | exporter->SetWireframe();
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| 298 | exporter->ExportBox(rssTree->bbox);
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| 299 | exporter->ExportViewpoint(rssTree->bbox.Center(), Vector3(1,0,0));
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[447] | 300 | delete exporter;
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| 301 | }
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| 302 | }
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| 303 |
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[492] | 304 |
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| 305 | void
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| 306 | RssPreprocessor::ComputeRenderError()
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| 307 | {
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| 308 | // compute rendering error
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[1145] | 309 |
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[752] | 310 | if (renderer && renderer->mPvsStatFrames) {
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[496] | 311 | // emit EvalPvsStat();
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| 312 | // QMutex mutex;
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| 313 | // mutex.lock();
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| 314 | // renderer->mRenderingFinished.wait(&mutex);
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| 315 | // mutex.unlock();
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[1785] | 316 |
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[496] | 317 | renderer->EvalPvsStat();
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[1785] | 318 |
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[492] | 319 | mStats <<
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| 320 | "#AvgPvsRenderError\n" <<renderer->mPvsStat.GetAvgError()<<endl<<
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| 321 | "#MaxPvsRenderError\n" <<renderer->mPvsStat.GetMaxError()<<endl<<
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[713] | 322 | "#ErrorFreeFrames\n" <<renderer->mPvsStat.GetErrorFreeFrames()<<endl<<
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| 323 | "#AvgRenderPvs\n" <<renderer->mPvsStat.GetAvgPvs()<<endl;
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[492] | 324 | }
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| 325 | }
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| 326 |
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[1112] | 327 | void
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[1785] | 328 | NormalizeRatios(vector<SamplingStrategy *> &distributions)
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[1771] | 329 | {
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| 330 | int i;
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| 331 | float sumRatios = 0.0f;
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| 332 |
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| 333 | for (i=0; i < distributions.size(); i++)
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| 334 | sumRatios += distributions[i]->mRatio;
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| 335 |
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| 336 |
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| 337 | if (sumRatios == 0.0f) {
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| 338 | for (i=0; i < distributions.size(); i++) {
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| 339 | distributions[i]->mRatio = 1.0f;
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| 340 | sumRatios += 1.0f;
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| 341 | }
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| 342 | }
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| 343 |
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| 344 | for (i=0 ; i < distributions.size(); i++)
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| 345 | distributions[i]->mRatio/=sumRatios;
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| 346 |
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| 347 | #define MIN_RATIO 0.1f
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| 348 |
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| 349 | for (i = 0; i < distributions.size(); i++)
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| 350 | if (distributions[i]->mRatio < MIN_RATIO)
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| 351 | distributions[i]->mRatio = MIN_RATIO;
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| 352 |
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| 353 |
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| 354 | sumRatios = 0.0f;
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| 355 | for (i=0; i < distributions.size(); i++)
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| 356 | sumRatios += distributions[i]->mRatio;
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| 357 |
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| 358 | for (i=0 ; i < distributions.size(); i++)
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| 359 | distributions[i]->mRatio/=sumRatios;
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| 360 |
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[1785] | 361 |
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| 362 | cout<<"New ratios: ";
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| 363 | for (i=0 ; i < distributions.size(); i++)
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| 364 | cout<<distributions[i]->mRatio<<" ";
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| 365 | cout<<endl;
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[1771] | 366 | }
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| 367 |
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| 368 | void
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[1785] | 369 | EvaluateRatios(vector<SamplingStrategy *> &distributions)
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[1112] | 370 | {
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[1785] | 371 | // now evaluate the ratios for the next pass
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[1867] | 372 | #define TIME_WEIGHT 0.0f
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[1785] | 373 | for (int i=0; i < distributions.size(); i++) {
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| 374 | distributions[i]->mRatio = distributions[i]->mContribution/
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[1877] | 375 | (Limits::Small +
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| 376 | (TIME_WEIGHT*distributions[i]->mTime +
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| 377 | (1 - TIME_WEIGHT)*distributions[i]->mRays)
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| 378 | );
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[1715] | 379 |
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[1785] | 380 | #if 1
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| 381 | distributions[i]->mRatio = sqr(distributions[i]->mRatio);
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[1715] | 382 | #endif
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[1785] | 383 | }
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[1112] | 384 | }
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[563] | 385 |
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[1785] | 386 |
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| 387 |
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[447] | 388 | bool
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| 389 | RssPreprocessor::ComputeVisibility()
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| 390 | {
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[556] | 391 |
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[811] | 392 | Debug << "type: rss" << endl;
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[579] | 393 |
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[464] | 394 | cout<<"Rss Preprocessor started\n"<<flush;
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[567] | 395 | // cout<<"Memory/ray "<<sizeof(VssRay)+sizeof(RssTreeNode::RayInfo)<<endl;
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[492] | 396 |
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| 397 | Randomize(0);
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[1867] | 398 |
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[1891] | 399 | if (0) {
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[1867] | 400 | Exporter *exporter = Exporter::GetExporter("samples.wrl");
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| 401 | exporter->SetFilled();
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| 402 | Halton<4> halton;
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| 403 |
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[1877] | 404 | // for (int i=1; i < 7; i++)
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| 405 | // cout<<i<<" prime= "<<FindPrime(i)<<endl;
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[1867] | 406 |
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| 407 | Material mA, mB;
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| 408 | mA.mDiffuseColor = RgbColor(1, 0, 0);
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| 409 | mB.mDiffuseColor = RgbColor(0, 1, 0);
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| 410 |
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| 411 | for (int i=0; i < 10000; i++) {
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| 412 | float r[4];
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| 413 | halton.GetNext(r);
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| 414 | Vector3 v1 = UniformRandomVector(r[0], r[1]);
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| 415 | Vector3 v2 = UniformRandomVector(r[2], r[3]);
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| 416 |
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| 417 | const float size =0.002f;
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| 418 | AxisAlignedBox3 box(v1-Vector3(size), v1+Vector3(size));
|
---|
| 419 | exporter->SetForcedMaterial(mA);
|
---|
| 420 | exporter->ExportBox(box);
|
---|
| 421 | AxisAlignedBox3 box2(v2-Vector3(size), v2+Vector3(size));
|
---|
| 422 |
|
---|
| 423 | exporter->SetForcedMaterial(mB);
|
---|
| 424 | exporter->ExportBox(box2);
|
---|
| 425 | }
|
---|
| 426 | delete exporter;
|
---|
| 427 | }
|
---|
[492] | 428 |
|
---|
[1867] | 429 |
|
---|
| 430 | cout<<"COMPUTATION THREAD="<<GetThread()->GetCurrentThreadId()<<endl<<flush;
|
---|
| 431 |
|
---|
[1785] | 432 | // use ray buffer to export ray animation
|
---|
[1877] | 433 | const bool useRayBuffer = false;
|
---|
[1694] | 434 |
|
---|
[1112] | 435 | vector<VssRayContainer> rayBuffer(50);
|
---|
| 436 |
|
---|
[447] | 437 | long startTime = GetTime();
|
---|
[1292] | 438 | long lastTime;
|
---|
| 439 | float totalTime;
|
---|
[447] | 440 |
|
---|
| 441 | int totalSamples = 0;
|
---|
| 442 |
|
---|
[577] | 443 | // if not already loaded, construct view cells from file
|
---|
[1112] | 444 | if (!mLoadViewCells)
|
---|
| 445 | {
|
---|
[1563] | 446 | // construct view cells using it's own set of samples
|
---|
| 447 | mViewCellsManager->Construct(this);
|
---|
| 448 |
|
---|
| 449 | //-- several visualizations and statistics
|
---|
| 450 | Debug << "view cells construction finished: " << endl;
|
---|
| 451 | mViewCellsManager->PrintStatistics(Debug);
|
---|
[574] | 452 | }
|
---|
[1563] | 453 |
|
---|
[1112] | 454 |
|
---|
[492] | 455 | int rssPass = 0;
|
---|
| 456 | int rssSamples = 0;
|
---|
[1737] | 457 |
|
---|
[1877] | 458 | // now decode distribution string
|
---|
| 459 | char buff[1024];
|
---|
| 460 | Environment::GetSingleton()->GetStringValue("RssPreprocessor.distributions",
|
---|
| 461 | buff);
|
---|
[563] | 462 |
|
---|
[1877] | 463 | char *curr = buff;
|
---|
| 464 | mUseRssTree = false;
|
---|
[1891] | 465 |
|
---|
[1877] | 466 | while (1) {
|
---|
| 467 | char *e = strchr(curr,'+');
|
---|
| 468 | if (e!=NULL) {
|
---|
| 469 | *e=0;
|
---|
| 470 | }
|
---|
| 471 |
|
---|
| 472 | if (strcmp(curr, "rss")==0) {
|
---|
| 473 | mDistributions.push_back(new RssBasedDistribution(*this));
|
---|
| 474 | mUseRssTree = true;
|
---|
| 475 | } else
|
---|
| 476 | if (strcmp(curr, "object")==0) {
|
---|
| 477 | mDistributions.push_back(new ObjectBasedDistribution(*this));
|
---|
| 478 | } else
|
---|
| 479 | if (strcmp(curr, "spatial")==0) {
|
---|
| 480 | mDistributions.push_back(new SpatialBoxBasedDistribution(*this));
|
---|
| 481 | } else
|
---|
| 482 | if (strcmp(curr, "global")==0) {
|
---|
| 483 | mDistributions.push_back(new GlobalLinesDistribution(*this));
|
---|
| 484 | } else
|
---|
| 485 | if (strcmp(curr, "direction")==0) {
|
---|
| 486 | mDistributions.push_back(new DirectionBasedDistribution(*this));
|
---|
| 487 | } else
|
---|
| 488 | if (strcmp(curr, "object_direction")==0) {
|
---|
| 489 | mDistributions.push_back(new ObjectDirectionBasedDistribution(*this));
|
---|
| 490 | } else
|
---|
| 491 | if (strcmp(curr, "reverse_object")==0) {
|
---|
| 492 | mDistributions.push_back(new ReverseObjectBasedDistribution(*this));
|
---|
| 493 | } else
|
---|
| 494 | if (strcmp(curr, "reverse_viewspace_border")==0) {
|
---|
| 495 | mDistributions.push_back(new ReverseViewSpaceBorderBasedDistribution(*this));
|
---|
| 496 | }
|
---|
| 497 |
|
---|
| 498 | if (e==NULL)
|
---|
| 499 | break;
|
---|
| 500 | curr = e+1;
|
---|
[1867] | 501 | }
|
---|
[1884] | 502 |
|
---|
| 503 | mMixtureDistribution = new MixtureDistribution(*this);
|
---|
| 504 | mMixtureDistribution->mDistributions = mDistributions;
|
---|
| 505 | mMixtureDistribution->Init();
|
---|
| 506 | bool oldGenerator = false;
|
---|
[1891] | 507 |
|
---|
| 508 | const int batch = 100000;
|
---|
[1867] | 509 |
|
---|
[492] | 510 | if (mLoadInitialSamples) {
|
---|
| 511 | cout << "Loading samples from file ... ";
|
---|
| 512 | LoadSamples(mVssRays, mObjects);
|
---|
| 513 | cout << "finished\n" << endl;
|
---|
| 514 | } else {
|
---|
[563] | 515 | SimpleRayContainer rays;
|
---|
[1737] | 516 |
|
---|
[1884] | 517 | if (oldGenerator) {
|
---|
| 518 |
|
---|
| 519 | cout<<"Generating initial rays..."<<endl<<flush;
|
---|
| 520 |
|
---|
| 521 | int count = 0;
|
---|
| 522 | int i;
|
---|
| 523 |
|
---|
| 524 | // Generate initial samples
|
---|
| 525 | for (i=0; i < mDistributions.size(); i++)
|
---|
| 526 | if (mDistributions[i]->mType != SamplingStrategy::RSS_BASED_DISTRIBUTION)
|
---|
| 527 | count++;
|
---|
| 528 |
|
---|
| 529 | for (i=0; i < mDistributions.size(); i++)
|
---|
| 530 | if (mDistributions[i]->mType != SamplingStrategy::RSS_BASED_DISTRIBUTION)
|
---|
| 531 | GenerateRays(mInitialSamples/count,
|
---|
| 532 | *mDistributions[i],
|
---|
| 533 | rays);
|
---|
| 534 |
|
---|
| 535 | cout<<"Casting initial rays..."<<endl<<flush;
|
---|
| 536 | CastRays(rays, mVssRays, true, pruneInvalidRays);
|
---|
| 537 |
|
---|
| 538 | ExportObjectRays(mVssRays, 1546);
|
---|
| 539 |
|
---|
| 540 | cout<<"Computing sample contributions..."<<endl<<flush;
|
---|
| 541 | // evaluate contributions of the intitial rays
|
---|
| 542 | mViewCellsManager->ComputeSampleContributions(mVssRays, true, false);
|
---|
| 543 | cout<<"done.\n"<<flush;
|
---|
| 544 |
|
---|
| 545 | } else {
|
---|
| 546 | for (int i=0; i < mInitialSamples; i+=batch) {
|
---|
| 547 | rays.clear();
|
---|
| 548 | mVssRays.clear();
|
---|
| 549 | mMixtureDistribution->GenerateSamples(batch, rays);
|
---|
| 550 | CastRays(rays, mVssRays, true, pruneInvalidRays);
|
---|
| 551 | mMixtureDistribution->ComputeContributions(mVssRays);
|
---|
| 552 | }
|
---|
| 553 | }
|
---|
[563] | 554 | }
|
---|
| 555 |
|
---|
| 556 | cout << "#totalRayStackSize=" << (int)mVssRays.size() << endl <<flush;
|
---|
| 557 |
|
---|
| 558 | rssSamples += (int)mVssRays.size();
|
---|
| 559 | totalSamples += mInitialSamples;
|
---|
| 560 | mPass++;
|
---|
| 561 |
|
---|
| 562 | if (mExportRays) {
|
---|
[577] | 563 |
|
---|
[563] | 564 | char filename[64];
|
---|
| 565 | sprintf(filename, "rss-rays-initial.x3d");
|
---|
| 566 | ExportRays(filename, mVssRays, mExportNumRays);
|
---|
[1112] | 567 |
|
---|
[1694] | 568 | if (useRayBuffer)
|
---|
| 569 | mVssRays.SelectRays(mExportNumRays, rayBuffer[0], true);
|
---|
[577] | 570 |
|
---|
[563] | 571 | }
|
---|
| 572 |
|
---|
| 573 | if (mStoreInitialSamples) {
|
---|
| 574 | cout << "Writing samples to file ... ";
|
---|
| 575 | ExportSamples(mVssRays);
|
---|
| 576 | cout << "finished\n" << endl;
|
---|
| 577 | }
|
---|
[492] | 578 |
|
---|
[1877] | 579 |
|
---|
| 580 | long time = GetTime();
|
---|
| 581 | totalTime = TimeDiff(startTime, time)*1e-3f;
|
---|
| 582 | lastTime = time;
|
---|
| 583 |
|
---|
| 584 | mStats <<
|
---|
| 585 | "#Pass\n" <<mPass<<endl<<
|
---|
| 586 | "#RssPass\n" <<rssPass<<endl<<
|
---|
| 587 | "#Time\n" << totalTime <<endl<<
|
---|
| 588 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 589 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
| 590 |
|
---|
| 591 | {
|
---|
| 592 | VssRayContainer contributingRays;
|
---|
| 593 | mVssRays.GetContributingRays(contributingRays, 0);
|
---|
| 594 | mStats<<"#NUM_CONTRIBUTING_RAYS\n"<<(int)contributingRays.size()<<endl;
|
---|
| 595 | if (mExportRays) {
|
---|
| 596 | char filename[64];
|
---|
| 597 | sprintf(filename, "rss-crays-%04d.x3d", 0);
|
---|
| 598 | ExportRays(filename, contributingRays, mExportNumRays);
|
---|
[569] | 599 | }
|
---|
[1877] | 600 | }
|
---|
| 601 |
|
---|
| 602 |
|
---|
| 603 | // viewcells->UpdatePVS(newVssRays);
|
---|
| 604 | Debug<<"Valid viewcells before set validity: "<<mViewCellsManager->CountValidViewcells()<<endl;
|
---|
| 605 | // cull viewcells with PVS > median (0.5f)
|
---|
| 606 | //mViewCellsManager->SetValidityPercentage(0, 0.5f);
|
---|
| 607 | // mViewCellsManager->SetValidityPercentage(0, 1.0f);
|
---|
| 608 | Debug<<"Valid viewcells after set validity: "<<mViewCellsManager->CountValidViewcells()<<endl;
|
---|
| 609 |
|
---|
| 610 | mVssRays.PrintStatistics(mStats);
|
---|
| 611 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
| 612 |
|
---|
| 613 |
|
---|
| 614 | if (0) {
|
---|
| 615 | char str[64];
|
---|
| 616 | sprintf(str, "tmp/v-");
|
---|
[563] | 617 |
|
---|
[1877] | 618 | // visualization
|
---|
| 619 | const bool exportRays = true;
|
---|
| 620 | const bool exportPvs = true;
|
---|
| 621 | ObjectContainer objects;
|
---|
| 622 | mViewCellsManager->ExportSingleViewCells(objects,
|
---|
| 623 | 1000,
|
---|
| 624 | false,
|
---|
| 625 | exportPvs,
|
---|
| 626 | exportRays,
|
---|
| 627 | 10000,
|
---|
| 628 | str);
|
---|
| 629 | }
|
---|
| 630 |
|
---|
| 631 | if (renderer) {
|
---|
[563] | 632 | ComputeRenderError();
|
---|
| 633 | }
|
---|
[492] | 634 |
|
---|
| 635 | rssPass++;
|
---|
[1824] | 636 |
|
---|
[1876] | 637 | // mDistributions.resize(1);
|
---|
[1824] | 638 |
|
---|
[563] | 639 | mRssTree = new RssTree;
|
---|
| 640 | mRssTree->SetPass(mPass);
|
---|
[492] | 641 |
|
---|
[527] | 642 | /// compute view cell contribution of rays if view cells manager already constructed
|
---|
[752] | 643 | // mViewCellsManager->ComputeSampleContributions(mVssRays, true, false);
|
---|
[527] | 644 |
|
---|
[1877] | 645 | if (mUseRssTree) {
|
---|
| 646 | mRssTree->Construct(mObjects, mVssRays);
|
---|
[467] | 647 |
|
---|
[1877] | 648 | mRssTree->stat.Print(mStats);
|
---|
| 649 | cout<<"RssTree root PVS size = "<<mRssTree->GetRootPvsSize()<<endl;
|
---|
| 650 |
|
---|
| 651 | if (mExportRssTree) {
|
---|
| 652 | ExportRssTree("rss-tree-100.x3d", mRssTree, Vector3(1,0,0));
|
---|
| 653 | ExportRssTree("rss-tree-001.x3d", mRssTree, Vector3(0,0,1));
|
---|
| 654 | ExportRssTree("rss-tree-101.x3d", mRssTree, Vector3(1,0,1));
|
---|
| 655 | ExportRssTree("rss-tree-101m.x3d", mRssTree, Vector3(-1,0,-1));
|
---|
| 656 | ExportRssTreeLeaves(mRssTree, 10);
|
---|
[467] | 657 | }
|
---|
[459] | 658 | }
|
---|
[1877] | 659 |
|
---|
| 660 | if (mExportPvs) {
|
---|
| 661 | ExportPvs("rss-pvs-initial.x3d", mRssTree);
|
---|
| 662 | }
|
---|
| 663 |
|
---|
| 664 |
|
---|
[1867] | 665 | // keep only rss
|
---|
[1876] | 666 | // mDistributions.resize(1);
|
---|
[1867] | 667 |
|
---|
[447] | 668 | while (1) {
|
---|
[1715] | 669 |
|
---|
[1283] | 670 | static SimpleRayContainer rays;
|
---|
| 671 | static VssRayContainer vssRays;
|
---|
| 672 | static VssRayContainer tmpVssRays;
|
---|
[1715] | 673 |
|
---|
[1877] | 674 | cout<<"H1"<<endl<<flush;
|
---|
[1715] | 675 |
|
---|
[1877] | 676 | //rays.reserve((int)(1.1f*mRssSamplesPerPass));
|
---|
| 677 |
|
---|
| 678 | cout<<"H10"<<endl<<flush;
|
---|
| 679 |
|
---|
[1283] | 680 | rays.clear();
|
---|
| 681 | vssRays.clear();
|
---|
| 682 | tmpVssRays.clear();
|
---|
[1877] | 683 |
|
---|
[563] | 684 | int castRays = 0;
|
---|
[567] | 685 |
|
---|
[1877] | 686 | cout<<"H11"<<endl<<flush;
|
---|
[567] | 687 |
|
---|
[1877] | 688 | NormalizeRatios(mDistributions);
|
---|
| 689 |
|
---|
| 690 | long t1;
|
---|
| 691 | cout<<"H2"<<endl<<flush;
|
---|
| 692 | for (int i=0; i < mDistributions.size(); i++) {
|
---|
| 693 | t1 = GetTime();
|
---|
| 694 | rays.clear();
|
---|
| 695 | tmpVssRays.clear();
|
---|
| 696 | if (mDistributions[i]->mRatio != 0) {
|
---|
| 697 | GenerateRays(int(mRssSamplesPerPass*mDistributions[i]->mRatio),
|
---|
| 698 | *mDistributions[i],
|
---|
| 699 | rays);
|
---|
| 700 |
|
---|
| 701 | rays.NormalizePdf((float)rays.size());
|
---|
| 702 |
|
---|
| 703 | CastRays(rays, tmpVssRays, true, pruneInvalidRays);
|
---|
| 704 | castRays += (int)rays.size();
|
---|
| 705 |
|
---|
| 706 | cout<<"Computing sample contributions..."<<endl<<flush;
|
---|
| 707 |
|
---|
[1112] | 708 | #if ADD_RAYS_IN_PLACE
|
---|
[1877] | 709 | float contribution =
|
---|
| 710 | mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
|
---|
[1112] | 711 | #else
|
---|
[1877] | 712 | float contribution =
|
---|
| 713 | mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
|
---|
[1112] | 714 | #endif
|
---|
[1877] | 715 | mDistributions[i]->mContribution = contribution;
|
---|
| 716 | mDistributions[i]->mTotalContribution += contribution;
|
---|
| 717 |
|
---|
[752] | 718 | cout<<"done."<<endl;
|
---|
[447] | 719 | }
|
---|
[563] | 720 |
|
---|
[1877] | 721 | mDistributions[i]->mTime = TimeDiff(t1, GetTime());
|
---|
| 722 | // mDistributions[i]->mRays = (int)rays.size();
|
---|
| 723 | mDistributions[i]->mRays = (int)tmpVssRays.size();
|
---|
| 724 | mDistributions[i]->mTotalRays = (int)tmpVssRays.size();
|
---|
| 725 |
|
---|
| 726 | // mStats<<"#RssRelContrib"<<endl<<contributions[0]/nrays[0]<<endl;
|
---|
| 727 | vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
|
---|
[447] | 728 | }
|
---|
[1877] | 729 |
|
---|
| 730 | EvaluateRatios(mDistributions);
|
---|
| 731 |
|
---|
| 732 | // add contributions of all rays at once...
|
---|
| 733 | #if !ADD_RAYS_IN_PLACE
|
---|
| 734 | mViewCellsManager->AddSampleContributions(vssRays);
|
---|
| 735 | #endif
|
---|
| 736 |
|
---|
| 737 |
|
---|
[563] | 738 | totalSamples += castRays;
|
---|
[503] | 739 | rssSamples += (int)vssRays.size();
|
---|
[1877] | 740 |
|
---|
[884] | 741 | cout<<"Generated "<<castRays<<" rays, progress "<<100.0f*totalSamples/((float) mRssSamples +
|
---|
| 742 | mInitialSamples)<<"%\n";
|
---|
[492] | 743 |
|
---|
[1877] | 744 |
|
---|
[1292] | 745 | long time = GetTime();
|
---|
| 746 | totalTime += TimeDiff(lastTime, time);
|
---|
| 747 | lastTime = time;
|
---|
[492] | 748 |
|
---|
[467] | 749 | mStats <<
|
---|
| 750 | "#Pass\n" <<mPass<<endl<<
|
---|
| 751 | "#RssPass\n" <<rssPass<<endl<<
|
---|
| 752 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3<<endl<<
|
---|
| 753 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 754 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
[1877] | 755 |
|
---|
| 756 |
|
---|
| 757 | Debug<<"Print statistics...\n"<<flush;
|
---|
| 758 | vssRays.PrintStatistics(mStats);
|
---|
| 759 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
| 760 | Debug<<"done.\n"<<flush;
|
---|
| 761 |
|
---|
[1785] | 762 | if (renderer && mPass > 0) {
|
---|
[1877] | 763 | Debug<<"Computing render errror..."<<endl<<flush;
|
---|
[1785] | 764 | char buf[100];
|
---|
[1877] | 765 | sprintf(buf, "snap/i-%02d-", mPass);
|
---|
[1785] | 766 |
|
---|
[1877] | 767 | renderer->SetSnapPrefix(buf);
|
---|
| 768 |
|
---|
[1151] | 769 | renderer->SetSnapErrorFrames(true);
|
---|
[1877] | 770 | ComputeRenderError();
|
---|
| 771 | Debug<<"done."<<endl<<flush;
|
---|
[576] | 772 | }
|
---|
[1785] | 773 |
|
---|
[492] | 774 | // epxort rays before adding them to the tree -> some of them can be deleted
|
---|
[1877] | 775 |
|
---|
[492] | 776 | if (mExportRays) {
|
---|
[1877] | 777 | Debug<<"Exporting rays..."<<endl<<flush;
|
---|
[492] | 778 | char filename[64];
|
---|
[1877] | 779 | sprintf(filename, "rss-rays-i%04d.x3d", rssPass);
|
---|
[492] | 780 |
|
---|
[1694] | 781 | if (useRayBuffer)
|
---|
| 782 | vssRays.SelectRays(mExportNumRays, rayBuffer[mPass], true);
|
---|
[1112] | 783 |
|
---|
[492] | 784 | ExportRays(filename, vssRays, mExportNumRays);
|
---|
[1112] | 785 |
|
---|
[492] | 786 | // now export all contributing rays
|
---|
| 787 | VssRayContainer contributingRays;
|
---|
| 788 | vssRays.GetContributingRays(contributingRays, mPass);
|
---|
[508] | 789 | mStats<<"#NUM_CONTRIBUTING_RAYS\n"<<(int)contributingRays.size()<<endl;
|
---|
[492] | 790 | sprintf(filename, "rss-crays-%04d.x3d", rssPass);
|
---|
| 791 | ExportRays(filename, contributingRays, mExportNumRays);
|
---|
[1877] | 792 |
|
---|
| 793 | Debug<<"done."<<endl<<flush;
|
---|
[492] | 794 | }
|
---|
| 795 |
|
---|
| 796 |
|
---|
[467] | 797 | // add rays to the tree after the viewcells have been cast to have their contributions
|
---|
| 798 | // already when adding into the tree
|
---|
| 799 | // do not add those rays which have too low or no contribution....
|
---|
[1877] | 800 | if (mUseRssTree) {
|
---|
[1715] | 801 | Debug<<"Adding rays...\n"<<flush;
|
---|
[563] | 802 | mRssTree->AddRays(vssRays);
|
---|
[1715] | 803 | Debug<<"done.\n"<<flush;
|
---|
[467] | 804 | if (mUpdateSubdivision) {
|
---|
[492] | 805 | int updatePasses = 1;
|
---|
| 806 | if (mPass % updatePasses == 0) {
|
---|
[1715] | 807 | Debug<<"Updating rss tree...\n"<<flush;
|
---|
[563] | 808 | int subdivided = mRssTree->UpdateSubdivision();
|
---|
[1715] | 809 | Debug<<"done.\n"<<flush;
|
---|
[492] | 810 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
[563] | 811 | cout<<"#total leaves = "<<mRssTree->stat.Leaves()<<endl;
|
---|
[492] | 812 | }
|
---|
[467] | 813 | }
|
---|
[447] | 814 | }
|
---|
[467] | 815 |
|
---|
[464] | 816 | if (mExportPvs) {
|
---|
[447] | 817 | char filename[64];
|
---|
[467] | 818 | sprintf(filename, "rss-pvs-%04d.x3d", rssPass);
|
---|
[563] | 819 | ExportPvs(filename, mRssTree);
|
---|
[447] | 820 | }
|
---|
[492] | 821 |
|
---|
[563] | 822 |
|
---|
[1877] | 823 | if (!mUseRssTree)
|
---|
[492] | 824 | CLEAR_CONTAINER(vssRays);
|
---|
[563] | 825 | // otherwise the rays get deleted by the rss tree update according to RssTree.maxRays ....
|
---|
[1785] | 826 |
|
---|
[467] | 827 | if (totalSamples >= mRssSamples + mInitialSamples)
|
---|
[447] | 828 | break;
|
---|
| 829 |
|
---|
[1613] | 830 |
|
---|
[467] | 831 | rssPass++;
|
---|
| 832 | mPass++;
|
---|
[563] | 833 | mRssTree->SetPass(mPass);
|
---|
[447] | 834 | }
|
---|
| 835 |
|
---|
[1877] | 836 | if(0) {
|
---|
| 837 | VssRayContainer selectedRays;
|
---|
| 838 | int desired = mViewCellsManager->GetVisualizationSamples();
|
---|
[556] | 839 |
|
---|
[1877] | 840 | mVssRays.SelectRays(desired, selectedRays);
|
---|
[1785] | 841 |
|
---|
[1877] | 842 | mViewCellsManager->Visualize(mObjects, selectedRays);
|
---|
[466] | 843 | }
|
---|
[1877] | 844 |
|
---|
| 845 | // view cells after sampling
|
---|
| 846 | mViewCellsManager->PrintStatistics(Debug);
|
---|
[1112] | 847 |
|
---|
[1877] | 848 | EvalViewCellHistogram();
|
---|
| 849 |
|
---|
| 850 | //-- render simulation after merge
|
---|
| 851 | cout << "\nEvaluating view cells render time after sampling ... ";
|
---|
| 852 |
|
---|
| 853 | mRenderSimulator->RenderScene();
|
---|
| 854 | SimulationStatistics ss;
|
---|
| 855 | mRenderSimulator->GetStatistics(ss);
|
---|
| 856 |
|
---|
| 857 | cout << " finished" << endl;
|
---|
| 858 | cout << ss << endl;
|
---|
| 859 | Debug << ss << endl;
|
---|
| 860 |
|
---|
| 861 | if (useRayBuffer && mExportRays) {
|
---|
[1112] | 862 | char filename[64];
|
---|
| 863 | sprintf(filename, "rss-rays-i.x3d");
|
---|
| 864 |
|
---|
| 865 | rayBuffer.resize(mPass);
|
---|
| 866 | ExportRayAnimation(filename, rayBuffer);
|
---|
| 867 | }
|
---|
[1877] | 868 |
|
---|
| 869 |
|
---|
[1581] | 870 | // do not delete rss tree now - can be used for visualization..
|
---|
| 871 | #if 0
|
---|
[563] | 872 | Debug<<"Deleting RSS tree...\n";
|
---|
| 873 | delete mRssTree;
|
---|
| 874 | Debug<<"Done.\n";
|
---|
[1581] | 875 | #endif
|
---|
[466] | 876 |
|
---|
[447] | 877 |
|
---|
| 878 | return true;
|
---|
| 879 | }
|
---|
| 880 |
|
---|
[871] | 881 | }
|
---|