[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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[447] | 15 |
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[1520] | 16 |
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[1715] | 17 |
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[863] | 18 | namespace GtpVisibilityPreprocessor {
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[860] | 19 |
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| 20 |
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[549] | 21 | static bool useViewSpaceBox = false;
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[447] | 22 | static bool use2dSampling = false;
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[516] | 23 |
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| 24 |
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| 25 | // not supported anymore!
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[463] | 26 | static bool fromBoxVisibility = false;
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[447] | 27 |
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[1199] | 28 | #define ADD_RAYS_IN_PLACE 1
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[1112] | 29 |
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[447] | 30 | RssPreprocessor::RssPreprocessor():
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| 31 | mVssRays()
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| 32 | {
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| 33 | // this should increase coherence of the samples
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[1004] | 34 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.samplesPerPass", mSamplesPerPass);
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| 35 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.initialSamples", mInitialSamples);
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| 36 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.vssSamples", mRssSamples);
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| 37 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.vssSamplesPerPass", mRssSamplesPerPass);
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| 38 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useImportanceSampling", mUseImportanceSampling);
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[464] | 39 |
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[1785] | 40 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useRssTree",
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| 41 | mUseRssTree);
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| 42 |
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[1004] | 43 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.pvs", mExportPvs);
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| 44 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.rssTree", mExportRssTree);
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| 45 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.rays", mExportRays);
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| 46 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.Export.numRays", mExportNumRays);
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| 47 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useViewcells", mUseViewcells);
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| 48 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.objectBasedSampling", mObjectBasedSampling);
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| 49 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.directionalSampling", mDirectionalSampling);
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[464] | 50 |
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[1004] | 51 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.loadInitialSamples", mLoadInitialSamples);
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[1785] | 52 |
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[1004] | 53 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.storeInitialSamples", mStoreInitialSamples);
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[1785] | 54 |
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[1004] | 55 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.updateSubdivision", mUpdateSubdivision);
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[464] | 56 |
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[563] | 57 | mRssTree = NULL;
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| 58 | }
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[492] | 59 |
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[563] | 60 |
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[1765] | 61 | int
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[563] | 62 | RssPreprocessor::GenerateRays(
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| 63 | const int number,
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| 64 | const int sampleType,
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| 65 | SimpleRayContainer &rays
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| 66 | )
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| 67 | {
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[1765] | 68 | int result = 0;
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[1715] | 69 |
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| 70 | Debug<<"Generate rays...\n"<<flush;
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[563] | 71 |
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| 72 | switch (sampleType) {
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[1520] | 73 | case SamplingStrategy::RSS_BASED_DISTRIBUTION:
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| 74 | case SamplingStrategy::RSS_SILHOUETTE_BASED_DISTRIBUTION:
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[1824] | 75 | if (mRssTree) {
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| 76 | result = GenerateImportanceRays(mRssTree, number, rays);
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| 77 | }
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| 78 | break;
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| 79 |
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[563] | 80 | default:
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[1824] | 81 | result = Preprocessor::GenerateRays(number, sampleType, rays);
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[563] | 82 | }
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| 83 |
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[1112] | 84 | // rays.NormalizePdf();
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[1715] | 85 | Debug<<"done.\n"<<flush;
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| 86 |
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[563] | 87 | return result;
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[447] | 88 | }
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| 89 |
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[563] | 90 |
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| 91 |
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[1715] | 92 |
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[447] | 93 | RssPreprocessor::~RssPreprocessor()
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| 94 | {
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[492] | 95 | // mVssRays get deleted in the tree
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| 96 | // CLEAR_CONTAINER(mVssRays);
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[447] | 97 | }
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| 98 |
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| 99 |
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| 100 |
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[576] | 101 | void
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| 102 | RssPreprocessor::ExportObjectRays(VssRayContainer &rays,
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| 103 | const int objectId)
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| 104 | {
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| 105 | ObjectContainer::const_iterator oi;
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[447] | 106 |
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[576] | 107 | Intersectable *object = NULL;
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| 108 | for (oi = mObjects.begin(); oi != mObjects.end(); ++oi)
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| 109 | if (objectId == (*oi)->GetId()) {
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| 110 | object = *oi;
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| 111 | break;
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| 112 | }
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[447] | 113 |
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[576] | 114 | if (object == NULL)
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| 115 | return;
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| 116 |
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| 117 | VssRayContainer selectedRays;
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| 118 | VssRayContainer::const_iterator it= rays.begin(), it_end = rays.end();
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| 119 |
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| 120 |
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| 121 | for (; it != it_end; ++it) {
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| 122 | if ((*it)->mTerminationObject == object)
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| 123 | selectedRays.push_back(*it);
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| 124 | }
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| 125 |
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| 126 |
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| 127 | Exporter *exporter = Exporter::GetExporter("object-rays.x3d");
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| 128 | // exporter->SetWireframe();
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| 129 | // exporter->ExportKdTree(*mKdTree);
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| 130 | exporter->SetFilled();
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| 131 | exporter->ExportIntersectable(object);
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| 132 | exporter->ExportRays(selectedRays, RgbColor(1, 0, 0));
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| 133 |
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| 134 | delete exporter;
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| 135 |
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| 136 | }
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| 137 |
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| 138 |
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[447] | 139 | int
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| 140 | RssPreprocessor::GenerateImportanceRays(RssTree *rssTree,
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| 141 | const int desiredSamples,
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| 142 | SimpleRayContainer &rays
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| 143 | )
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| 144 | {
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| 145 | int num;
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[463] | 146 |
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[492] | 147 | rssTree->UpdateTreeStatistics();
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[463] | 148 |
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[447] | 149 | cout<<
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[492] | 150 | "#RSS_AVG_PVS_SIZE\n"<<rssTree->stat.avgPvsSize<<endl<<
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| 151 | "#RSS_AVG_RAYS\n"<<rssTree->stat.avgRays<<endl<<
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| 152 | "#RSS_AVG_RAY_CONTRIB\n"<<rssTree->stat.avgRayContribution<<endl<<
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| 153 | "#RSS_AVG_PVS_ENTROPY\n"<<rssTree->stat.avgPvsEntropy<<endl<<
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| 154 | "#RSS_AVG_RAY_LENGTH_ENTROPY\n"<<rssTree->stat.avgRayLengthEntropy<<endl<<
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| 155 | "#RSS_AVG_IMPORTANCE\n"<<rssTree->stat.avgImportance<<endl;
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[447] | 156 |
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| 157 | if (0) {
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[492] | 158 | float p = desiredSamples/(float)(rssTree->stat.avgRayContribution*rssTree->stat.Leaves());
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[447] | 159 | num = rssTree->GenerateRays(p, rays);
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| 160 | } else {
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[459] | 161 | int leaves = rssTree->stat.Leaves()/1;
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[1112] | 162 |
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[447] | 163 | num = rssTree->GenerateRays(desiredSamples, leaves, rays);
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| 164 | }
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| 165 |
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| 166 |
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| 167 | return num;
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| 168 | }
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| 169 |
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| 170 |
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| 171 | bool
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| 172 | RssPreprocessor::ExportRays(const char *filename,
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| 173 | const VssRayContainer &vssRays,
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| 174 | const int number
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| 175 | )
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| 176 | {
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| 177 | cout<<"Exporting vss rays..."<<endl<<flush;
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| 178 |
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| 179 | Exporter *exporter = NULL;
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| 180 | exporter = Exporter::GetExporter(filename);
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[1112] | 181 | if (0) {
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| 182 | exporter->SetWireframe();
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| 183 | exporter->ExportKdTree(*mKdTree);
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| 184 | }
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[447] | 185 | exporter->SetFilled();
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[556] | 186 | // $$JB temporarily do not export the scene
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[752] | 187 | if (0)
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[1328] | 188 | exporter->ExportScene(mSceneGraph->GetRoot());
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[447] | 189 | exporter->SetWireframe();
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| 190 |
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[1563] | 191 | if (1) {
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[447] | 192 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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[1112] | 193 | exporter->ExportBox(mViewCellsManager->GetViewSpaceBox());
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[447] | 194 | exporter->ResetForcedMaterial();
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| 195 | }
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[1112] | 196 |
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[492] | 197 | VssRayContainer rays;
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| 198 |
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[1112] | 199 | vssRays.SelectRays(number, rays);
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[447] | 200 |
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| 201 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
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| 202 |
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| 203 | delete exporter;
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| 204 |
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| 205 | cout<<"done."<<endl<<flush;
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| 206 |
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| 207 | return true;
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| 208 | }
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| 209 |
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[1112] | 210 | bool
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| 211 | RssPreprocessor::ExportRayAnimation(const char *filename,
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| 212 | const vector<VssRayContainer> &vssRays
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| 213 | )
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| 214 | {
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| 215 | cout<<"Exporting vss rays..."<<endl<<flush;
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| 216 |
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| 217 | Exporter *exporter = NULL;
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| 218 | exporter = Exporter::GetExporter(filename);
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| 219 | if (0) {
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| 220 | exporter->SetWireframe();
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| 221 | exporter->ExportKdTree(*mKdTree);
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| 222 | }
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| 223 | exporter->SetFilled();
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| 224 | // $$JB temporarily do not export the scene
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| 225 | if (1)
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[1328] | 226 | exporter->ExportScene(mSceneGraph->GetRoot());
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[1112] | 227 | exporter->SetWireframe();
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[447] | 228 |
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[1563] | 229 | if (1) {
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[1112] | 230 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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| 231 | exporter->ExportBox(mViewCellsManager->GetViewSpaceBox());
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| 232 | exporter->ResetForcedMaterial();
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| 233 | }
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| 234 |
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| 235 | exporter->ExportRaySets(vssRays, RgbColor(1, 0, 0));
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| 236 |
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| 237 | delete exporter;
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| 238 |
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| 239 | cout<<"done."<<endl<<flush;
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| 240 |
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| 241 | return true;
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| 242 | }
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| 243 |
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| 244 |
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[447] | 245 | bool
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| 246 | RssPreprocessor::ExportRssTree(char *filename,
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| 247 | RssTree *tree,
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| 248 | const Vector3 &dir
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| 249 | )
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| 250 | {
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| 251 | Exporter *exporter = Exporter::GetExporter(filename);
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| 252 | exporter->SetFilled();
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[1328] | 253 | exporter->ExportScene(mSceneGraph->GetRoot());
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[447] | 254 | // exporter->SetWireframe();
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| 255 | bool result = exporter->ExportRssTree2( *tree, dir );
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| 256 | delete exporter;
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| 257 | return result;
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| 258 | }
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| 259 |
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| 260 | bool
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| 261 | RssPreprocessor::ExportRssTreeLeaf(char *filename,
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| 262 | RssTree *tree,
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| 263 | RssTreeLeaf *leaf)
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| 264 | {
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| 265 | Exporter *exporter = NULL;
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| 266 | exporter = Exporter::GetExporter(filename);
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| 267 | exporter->SetWireframe();
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| 268 | exporter->ExportKdTree(*mKdTree);
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| 269 |
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| 270 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 271 | exporter->ExportBox(tree->GetBBox(leaf));
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| 272 | exporter->ResetForcedMaterial();
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| 273 |
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| 274 | VssRayContainer rays[4];
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| 275 | for (int i=0; i < leaf->rays.size(); i++) {
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| 276 | int k = leaf->rays[i].GetRayClass();
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| 277 | rays[k].push_back(leaf->rays[i].mRay);
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| 278 | }
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| 279 |
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| 280 | // SOURCE RAY
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| 281 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
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| 282 | // TERMINATION RAY
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| 283 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
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| 284 | // PASSING_RAY
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| 285 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
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| 286 | // CONTAINED_RAY
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| 287 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
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| 288 |
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| 289 | delete exporter;
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| 290 | return true;
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| 291 | }
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| 292 |
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| 293 | void
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| 294 | RssPreprocessor::ExportRssTreeLeaves(RssTree *tree, const int number)
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| 295 | {
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| 296 | vector<RssTreeLeaf *> leaves;
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| 297 | tree->CollectLeaves(leaves);
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| 298 |
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| 299 | int num = 0;
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| 300 | int i;
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| 301 | float p = number / (float)leaves.size();
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| 302 | for (i=0; i < leaves.size(); i++) {
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| 303 | if (RandomValue(0,1) < p) {
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| 304 | char filename[64];
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| 305 | sprintf(filename, "rss-leaf-%04d.x3d", num);
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| 306 | ExportRssTreeLeaf(filename, tree, leaves[i]);
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| 307 | num++;
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| 308 | }
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| 309 | if (num >= number)
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| 310 | break;
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| 311 | }
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| 312 | }
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| 313 |
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| 314 |
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| 315 | float
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| 316 | RssPreprocessor::GetAvgPvsSize(RssTree *tree,
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| 317 | const vector<AxisAlignedBox3> &viewcells
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| 318 | )
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| 319 | {
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| 320 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
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| 321 |
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| 322 | int sum = 0;
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| 323 | for (it = viewcells.begin(); it != it_end; ++ it)
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| 324 | sum += tree->GetPvsSize(*it);
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| 325 |
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| 326 | return sum/(float)viewcells.size();
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| 327 | }
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| 328 |
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| 329 |
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| 330 | void
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| 331 | RssPreprocessor::ExportPvs(char *filename,
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| 332 | RssTree *rssTree
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| 333 | )
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| 334 | {
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| 335 | ObjectContainer pvs;
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| 336 | if (rssTree->CollectRootPvs(pvs)) {
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| 337 | Exporter *exporter = Exporter::GetExporter(filename);
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| 338 | exporter->SetFilled();
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| 339 | exporter->ExportGeometry(pvs);
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[459] | 340 | exporter->SetWireframe();
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| 341 | exporter->ExportBox(rssTree->bbox);
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| 342 | exporter->ExportViewpoint(rssTree->bbox.Center(), Vector3(1,0,0));
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[447] | 343 | delete exporter;
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| 344 | }
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| 345 | }
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| 346 |
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[492] | 347 |
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| 348 | void
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| 349 | RssPreprocessor::ComputeRenderError()
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| 350 | {
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| 351 | // compute rendering error
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[1145] | 352 |
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[752] | 353 | if (renderer && renderer->mPvsStatFrames) {
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[496] | 354 | // emit EvalPvsStat();
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| 355 | // QMutex mutex;
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| 356 | // mutex.lock();
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| 357 | // renderer->mRenderingFinished.wait(&mutex);
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| 358 | // mutex.unlock();
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[1785] | 359 |
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[496] | 360 | renderer->EvalPvsStat();
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[1785] | 361 |
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[492] | 362 | mStats <<
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| 363 | "#AvgPvsRenderError\n" <<renderer->mPvsStat.GetAvgError()<<endl<<
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| 364 | "#MaxPvsRenderError\n" <<renderer->mPvsStat.GetMaxError()<<endl<<
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[713] | 365 | "#ErrorFreeFrames\n" <<renderer->mPvsStat.GetErrorFreeFrames()<<endl<<
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| 366 | "#AvgRenderPvs\n" <<renderer->mPvsStat.GetAvgPvs()<<endl;
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[492] | 367 | }
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| 368 | }
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| 369 |
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[1112] | 370 | void
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[1785] | 371 | NormalizeRatios(vector<SamplingStrategy *> &distributions)
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[1771] | 372 | {
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| 373 | int i;
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| 374 | float sumRatios = 0.0f;
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| 375 |
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| 376 | for (i=0; i < distributions.size(); i++)
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| 377 | sumRatios += distributions[i]->mRatio;
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| 378 |
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| 379 |
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| 380 | if (sumRatios == 0.0f) {
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| 381 | for (i=0; i < distributions.size(); i++) {
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| 382 | distributions[i]->mRatio = 1.0f;
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| 383 | sumRatios += 1.0f;
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| 384 | }
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| 385 | }
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| 386 |
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| 387 | for (i=0 ; i < distributions.size(); i++)
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| 388 | distributions[i]->mRatio/=sumRatios;
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| 389 |
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| 390 | #define MIN_RATIO 0.1f
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| 391 |
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| 392 | for (i = 0; i < distributions.size(); i++)
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| 393 | if (distributions[i]->mRatio < MIN_RATIO)
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| 394 | distributions[i]->mRatio = MIN_RATIO;
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| 395 |
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| 396 |
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| 397 | sumRatios = 0.0f;
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| 398 | for (i=0; i < distributions.size(); i++)
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| 399 | sumRatios += distributions[i]->mRatio;
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| 400 |
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| 401 | for (i=0 ; i < distributions.size(); i++)
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| 402 | distributions[i]->mRatio/=sumRatios;
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| 403 |
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[1785] | 404 |
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| 405 | cout<<"New ratios: ";
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| 406 | for (i=0 ; i < distributions.size(); i++)
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| 407 | cout<<distributions[i]->mRatio<<" ";
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| 408 | cout<<endl;
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[1771] | 409 | }
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| 410 |
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| 411 | void
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[1785] | 412 | EvaluateRatios(vector<SamplingStrategy *> &distributions)
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[1112] | 413 | {
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[1785] | 414 | // now evaluate the ratios for the next pass
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| 415 | #define TIME_WEIGHT 0.5f
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| 416 | for (int i=0; i < distributions.size(); i++) {
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| 417 | distributions[i]->mRatio = distributions[i]->mContribution/
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| 418 | (TIME_WEIGHT*distributions[i]->mTime +
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| 419 | (1 - TIME_WEIGHT)*distributions[i]->mRays);
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[1715] | 420 |
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[1785] | 421 | #if 1
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| 422 | distributions[i]->mRatio = sqr(distributions[i]->mRatio);
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[1715] | 423 | #endif
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[1785] | 424 | }
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[1112] | 425 | }
|
---|
[563] | 426 |
|
---|
[1785] | 427 |
|
---|
| 428 |
|
---|
[447] | 429 | bool
|
---|
| 430 | RssPreprocessor::ComputeVisibility()
|
---|
| 431 | {
|
---|
[556] | 432 |
|
---|
[811] | 433 | Debug << "type: rss" << endl;
|
---|
[579] | 434 |
|
---|
[464] | 435 | cout<<"Rss Preprocessor started\n"<<flush;
|
---|
[567] | 436 | // cout<<"Memory/ray "<<sizeof(VssRay)+sizeof(RssTreeNode::RayInfo)<<endl;
|
---|
[492] | 437 |
|
---|
| 438 | Randomize(0);
|
---|
| 439 |
|
---|
[1785] | 440 | // use ray buffer to export ray animation
|
---|
[1694] | 441 | const bool useRayBuffer = false;
|
---|
| 442 |
|
---|
[1112] | 443 | vector<VssRayContainer> rayBuffer(50);
|
---|
| 444 |
|
---|
[447] | 445 | long startTime = GetTime();
|
---|
[1292] | 446 | long lastTime;
|
---|
| 447 | float totalTime;
|
---|
[447] | 448 |
|
---|
| 449 | int totalSamples = 0;
|
---|
| 450 |
|
---|
[577] | 451 | // if not already loaded, construct view cells from file
|
---|
[1112] | 452 | if (!mLoadViewCells)
|
---|
| 453 | {
|
---|
[1563] | 454 | // construct view cells using it's own set of samples
|
---|
| 455 | mViewCellsManager->Construct(this);
|
---|
| 456 |
|
---|
| 457 | //-- several visualizations and statistics
|
---|
| 458 | Debug << "view cells construction finished: " << endl;
|
---|
| 459 | mViewCellsManager->PrintStatistics(Debug);
|
---|
[574] | 460 | }
|
---|
[1563] | 461 |
|
---|
[1112] | 462 |
|
---|
[492] | 463 | int rssPass = 0;
|
---|
| 464 | int rssSamples = 0;
|
---|
[1737] | 465 |
|
---|
[1785] | 466 | if (mUseRssTree)
|
---|
[1824] | 467 | mDistributions.push_back(new RssBasedDistribution(*this));
|
---|
[1785] | 468 |
|
---|
[1824] | 469 |
|
---|
| 470 | if (1) {
|
---|
| 471 | // mDistributions.push_back(new SpatialBoxBasedDistribution(*this));
|
---|
| 472 | // mDistributions.push_back(new DirectionBasedDistribution(*this));
|
---|
| 473 | mDistributions.push_back(new ObjectDirectionBasedDistribution(*this));
|
---|
| 474 | // mDistributions.push_back(new ReverseObjectBasedDistribution(*this));
|
---|
| 475 | mDistributions.push_back(new ObjectBasedDistribution(*this));
|
---|
| 476 | mDistributions.push_back(new ReverseViewSpaceBorderBasedDistribution(*this));
|
---|
| 477 | } else {
|
---|
| 478 | mDistributions.push_back(new GlobalLinesDistribution(*this));
|
---|
| 479 | }
|
---|
[563] | 480 |
|
---|
[492] | 481 | if (mLoadInitialSamples) {
|
---|
| 482 | cout << "Loading samples from file ... ";
|
---|
| 483 | LoadSamples(mVssRays, mObjects);
|
---|
| 484 | cout << "finished\n" << endl;
|
---|
| 485 | } else {
|
---|
[563] | 486 | SimpleRayContainer rays;
|
---|
[1737] | 487 |
|
---|
[871] | 488 | cout<<"Generating initial rays..."<<endl<<flush;
|
---|
[1737] | 489 |
|
---|
[1199] | 490 | if (mUseImportanceSampling) {
|
---|
[1785] | 491 | int count = 0;
|
---|
| 492 | int i;
|
---|
| 493 |
|
---|
| 494 | // Generate initial samples
|
---|
| 495 | for (i=0; i < mDistributions.size(); i++)
|
---|
| 496 | if (mDistributions[i]->mType != SamplingStrategy::RSS_BASED_DISTRIBUTION)
|
---|
| 497 | count++;
|
---|
[1737] | 498 |
|
---|
[1785] | 499 | for (i=0; i < mDistributions.size(); i++)
|
---|
| 500 | if (mDistributions[i]->mType != SamplingStrategy::RSS_BASED_DISTRIBUTION)
|
---|
| 501 | GenerateRays(mInitialSamples/count,
|
---|
[1824] | 502 | mDistributions[i]->mType,
|
---|
| 503 | rays);
|
---|
[1737] | 504 |
|
---|
[1199] | 505 | } else {
|
---|
[1737] | 506 | int rayType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[1199] | 507 | if (mObjectBasedSampling)
|
---|
[1520] | 508 | rayType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
|
---|
[1199] | 509 | else
|
---|
| 510 | if (mDirectionalSampling)
|
---|
[1520] | 511 | rayType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
|
---|
[1199] | 512 | cout<<"Generating rays..."<<endl;
|
---|
| 513 | GenerateRays(mRssSamplesPerPass, rayType, rays);
|
---|
| 514 | }
|
---|
| 515 |
|
---|
| 516 |
|
---|
[871] | 517 | cout<<"Casting initial rays..."<<endl<<flush;
|
---|
[1520] | 518 | CastRays(rays, mVssRays, true);
|
---|
[576] | 519 |
|
---|
| 520 | ExportObjectRays(mVssRays, 1546);
|
---|
[563] | 521 | }
|
---|
| 522 |
|
---|
| 523 | cout << "#totalRayStackSize=" << (int)mVssRays.size() << endl <<flush;
|
---|
| 524 |
|
---|
| 525 | rssSamples += (int)mVssRays.size();
|
---|
| 526 | totalSamples += mInitialSamples;
|
---|
| 527 | mPass++;
|
---|
| 528 |
|
---|
| 529 | if (mExportRays) {
|
---|
[577] | 530 |
|
---|
[563] | 531 | char filename[64];
|
---|
| 532 | sprintf(filename, "rss-rays-initial.x3d");
|
---|
| 533 | ExportRays(filename, mVssRays, mExportNumRays);
|
---|
[1112] | 534 |
|
---|
[1694] | 535 | if (useRayBuffer)
|
---|
| 536 | mVssRays.SelectRays(mExportNumRays, rayBuffer[0], true);
|
---|
[577] | 537 |
|
---|
[563] | 538 | }
|
---|
| 539 |
|
---|
| 540 | if (mStoreInitialSamples) {
|
---|
| 541 | cout << "Writing samples to file ... ";
|
---|
| 542 | ExportSamples(mVssRays);
|
---|
| 543 | cout << "finished\n" << endl;
|
---|
| 544 | }
|
---|
[492] | 545 |
|
---|
[563] | 546 | if (mUseViewcells) {
|
---|
| 547 |
|
---|
[871] | 548 | cout<<"Computing sample contributions..."<<endl<<flush;
|
---|
[563] | 549 | // evaluate contributions of the intitial rays
|
---|
[574] | 550 | mViewCellsManager->ComputeSampleContributions(mVssRays, true, false);
|
---|
[871] | 551 | cout<<"done.\n"<<flush;
|
---|
[1292] | 552 |
|
---|
| 553 | long time = GetTime();
|
---|
[1723] | 554 | totalTime = TimeDiff(startTime, time)*1e-3f;
|
---|
[1292] | 555 | lastTime = time;
|
---|
[492] | 556 |
|
---|
[563] | 557 | mStats <<
|
---|
| 558 | "#Pass\n" <<mPass<<endl<<
|
---|
| 559 | "#RssPass\n" <<rssPass<<endl<<
|
---|
[1292] | 560 | "#Time\n" << totalTime <<endl<<
|
---|
[563] | 561 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 562 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
[569] | 563 |
|
---|
| 564 | {
|
---|
| 565 | VssRayContainer contributingRays;
|
---|
[1112] | 566 | mVssRays.GetContributingRays(contributingRays, 0);
|
---|
[569] | 567 | mStats<<"#NUM_CONTRIBUTING_RAYS\n"<<(int)contributingRays.size()<<endl;
|
---|
[1112] | 568 | if (mExportRays) {
|
---|
| 569 | char filename[64];
|
---|
| 570 | sprintf(filename, "rss-crays-%04d.x3d", 0);
|
---|
| 571 | ExportRays(filename, contributingRays, mExportNumRays);
|
---|
| 572 | }
|
---|
[569] | 573 | }
|
---|
[563] | 574 |
|
---|
[502] | 575 |
|
---|
[572] | 576 | // viewcells->UpdatePVS(newVssRays);
|
---|
| 577 | Debug<<"Valid viewcells before set validity: "<<mViewCellsManager->CountValidViewcells()<<endl;
|
---|
| 578 | // cull viewcells with PVS > median (0.5f)
|
---|
[752] | 579 | //mViewCellsManager->SetValidityPercentage(0, 0.5f);
|
---|
| 580 | mViewCellsManager->SetValidityPercentage(0, 1.0f);
|
---|
[572] | 581 | Debug<<"Valid viewcells after set validity: "<<mViewCellsManager->CountValidViewcells()<<endl;
|
---|
[1761] | 582 |
|
---|
| 583 | mVssRays.PrintStatistics(mStats);
|
---|
| 584 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
| 585 |
|
---|
[563] | 586 | ComputeRenderError();
|
---|
| 587 | }
|
---|
[492] | 588 |
|
---|
| 589 | rssPass++;
|
---|
[1824] | 590 |
|
---|
| 591 | // mDistributions.resize(1);
|
---|
| 592 |
|
---|
[563] | 593 | mRssTree = new RssTree;
|
---|
| 594 | mRssTree->SetPass(mPass);
|
---|
[492] | 595 |
|
---|
[527] | 596 | /// compute view cell contribution of rays if view cells manager already constructed
|
---|
[752] | 597 | // mViewCellsManager->ComputeSampleContributions(mVssRays, true, false);
|
---|
[527] | 598 |
|
---|
[467] | 599 | if (mUseImportanceSampling) {
|
---|
[1715] | 600 |
|
---|
[1785] | 601 | if (mUseRssTree) {
|
---|
| 602 | mRssTree->Construct(mObjects, mVssRays);
|
---|
[467] | 603 |
|
---|
[1785] | 604 | mRssTree->stat.Print(mStats);
|
---|
| 605 | cout<<"RssTree root PVS size = "<<mRssTree->GetRootPvsSize()<<endl;
|
---|
| 606 |
|
---|
| 607 | if (mExportRssTree) {
|
---|
| 608 | ExportRssTree("rss-tree-100.x3d", mRssTree, Vector3(1,0,0));
|
---|
| 609 | ExportRssTree("rss-tree-001.x3d", mRssTree, Vector3(0,0,1));
|
---|
| 610 | ExportRssTree("rss-tree-101.x3d", mRssTree, Vector3(1,0,1));
|
---|
| 611 | ExportRssTree("rss-tree-101m.x3d", mRssTree, Vector3(-1,0,-1));
|
---|
| 612 | ExportRssTreeLeaves(mRssTree, 10);
|
---|
| 613 | }
|
---|
[467] | 614 | }
|
---|
[1785] | 615 |
|
---|
[467] | 616 | if (mExportPvs) {
|
---|
[563] | 617 | ExportPvs("rss-pvs-initial.x3d", mRssTree);
|
---|
[467] | 618 | }
|
---|
[459] | 619 | }
|
---|
[467] | 620 |
|
---|
[466] | 621 |
|
---|
[1715] | 622 |
|
---|
[447] | 623 | while (1) {
|
---|
[1715] | 624 |
|
---|
[1283] | 625 | static SimpleRayContainer rays;
|
---|
| 626 | static VssRayContainer vssRays;
|
---|
| 627 | static VssRayContainer tmpVssRays;
|
---|
[1715] | 628 |
|
---|
| 629 | rays.reserve((int)(1.1f*mRssSamplesPerPass));
|
---|
| 630 |
|
---|
[1283] | 631 | rays.clear();
|
---|
| 632 | vssRays.clear();
|
---|
| 633 | tmpVssRays.clear();
|
---|
[1715] | 634 |
|
---|
[563] | 635 | int castRays = 0;
|
---|
| 636 | if (mUseImportanceSampling) {
|
---|
[567] | 637 |
|
---|
[1785] | 638 | NormalizeRatios(mDistributions);
|
---|
[1112] | 639 |
|
---|
[1150] | 640 | long t1;
|
---|
[567] | 641 |
|
---|
[1785] | 642 | for (int i=0; i < mDistributions.size(); i++) {
|
---|
[1112] | 643 | t1 = GetTime();
|
---|
[567] | 644 | rays.clear();
|
---|
| 645 | tmpVssRays.clear();
|
---|
[1785] | 646 | if (mDistributions[i]->mRatio != 0) {
|
---|
| 647 | GenerateRays(int(mRssSamplesPerPass*mDistributions[i]->mRatio),
|
---|
| 648 | mDistributions[i]->mType,
|
---|
| 649 | rays);
|
---|
| 650 |
|
---|
| 651 | rays.NormalizePdf((float)rays.size());
|
---|
| 652 |
|
---|
| 653 | CastRays(rays, tmpVssRays, true);
|
---|
| 654 | castRays += (int)rays.size();
|
---|
| 655 |
|
---|
[1112] | 656 | #if ADD_RAYS_IN_PLACE
|
---|
[1785] | 657 | mDistributions[i]->mContribution =
|
---|
| 658 | mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
|
---|
[1112] | 659 | #else
|
---|
[1785] | 660 | mDistributions[i]->mContribution =
|
---|
| 661 | mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
|
---|
[1112] | 662 | #endif
|
---|
[1785] | 663 | }
|
---|
| 664 |
|
---|
| 665 | mDistributions[i]->mTime = TimeDiff(t1, GetTime());
|
---|
| 666 | mDistributions[i]->mRays = (int)rays.size();
|
---|
| 667 | // mStats<<"#RssRelContrib"<<endl<<contributions[0]/nrays[0]<<endl;
|
---|
[567] | 668 | vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
|
---|
| 669 | }
|
---|
[1737] | 670 |
|
---|
[1785] | 671 | EvaluateRatios(mDistributions);
|
---|
[1112] | 672 |
|
---|
[563] | 673 | // add contributions of all rays at once...
|
---|
[1112] | 674 | #if !ADD_RAYS_IN_PLACE
|
---|
[563] | 675 | mViewCellsManager->AddSampleContributions(vssRays);
|
---|
[1112] | 676 | #endif
|
---|
[563] | 677 | }
|
---|
| 678 | else {
|
---|
[1520] | 679 | int rayType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[563] | 680 | if (mObjectBasedSampling)
|
---|
[1520] | 681 | rayType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
|
---|
[563] | 682 | else
|
---|
| 683 | if (mDirectionalSampling)
|
---|
[1520] | 684 | rayType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
|
---|
[752] | 685 |
|
---|
| 686 | cout<<"Generating rays..."<<endl;
|
---|
| 687 |
|
---|
[563] | 688 | GenerateRays(mRssSamplesPerPass, rayType, rays);
|
---|
[752] | 689 | cout<<"done."<<endl;
|
---|
| 690 |
|
---|
[1715] | 691 | cout<<"Casting rays..."<<endl; CastRays(rays, vssRays, true);
|
---|
[752] | 692 | cout<<"done."<<endl;
|
---|
[1302] | 693 | castRays += (int)rays.size();
|
---|
[563] | 694 | if (mUseViewcells) {
|
---|
| 695 | /// compute view cell contribution of rays
|
---|
[752] | 696 | cout<<"Computing sample contributions..."<<endl;
|
---|
[574] | 697 | mViewCellsManager->ComputeSampleContributions(vssRays, true, false);
|
---|
[752] | 698 | cout<<"done."<<endl;
|
---|
[447] | 699 | }
|
---|
[563] | 700 |
|
---|
| 701 |
|
---|
[447] | 702 | }
|
---|
[563] | 703 | totalSamples += castRays;
|
---|
[503] | 704 | rssSamples += (int)vssRays.size();
|
---|
[467] | 705 |
|
---|
[884] | 706 | cout<<"Generated "<<castRays<<" rays, progress "<<100.0f*totalSamples/((float) mRssSamples +
|
---|
| 707 | mInitialSamples)<<"%\n";
|
---|
[492] | 708 |
|
---|
[1292] | 709 |
|
---|
| 710 | long time = GetTime();
|
---|
| 711 | totalTime += TimeDiff(lastTime, time);
|
---|
| 712 | lastTime = time;
|
---|
[492] | 713 |
|
---|
[467] | 714 | mStats <<
|
---|
| 715 | "#Pass\n" <<mPass<<endl<<
|
---|
| 716 | "#RssPass\n" <<rssPass<<endl<<
|
---|
| 717 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3<<endl<<
|
---|
| 718 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 719 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
| 720 |
|
---|
[492] | 721 |
|
---|
[466] | 722 | if (mUseViewcells) {
|
---|
[1715] | 723 | Debug<<"Print statistics...\n"<<flush;
|
---|
[467] | 724 | vssRays.PrintStatistics(mStats);
|
---|
| 725 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
[1715] | 726 | Debug<<"done.\n"<<flush;
|
---|
[466] | 727 | }
|
---|
[576] | 728 |
|
---|
[1145] | 729 |
|
---|
[1785] | 730 | if (renderer && mPass > 0) {
|
---|
| 731 | char buf[100];
|
---|
| 732 | if (mUseImportanceSampling)
|
---|
| 733 | {
|
---|
| 734 | sprintf(buf, "snap/i-%02d-", mPass);
|
---|
| 735 |
|
---|
| 736 | renderer->SetSnapPrefix(buf);
|
---|
| 737 | }
|
---|
[576] | 738 | else
|
---|
[1785] | 739 | {
|
---|
| 740 | sprintf(buf, "snap/r-%02d-", mPass);
|
---|
| 741 |
|
---|
| 742 | renderer->SetSnapPrefix(buf);
|
---|
| 743 | }
|
---|
| 744 |
|
---|
[1151] | 745 | renderer->SetSnapErrorFrames(true);
|
---|
[576] | 746 | }
|
---|
[1785] | 747 |
|
---|
[492] | 748 | ComputeRenderError();
|
---|
| 749 |
|
---|
| 750 | // epxort rays before adding them to the tree -> some of them can be deleted
|
---|
| 751 |
|
---|
| 752 | if (mExportRays) {
|
---|
| 753 | char filename[64];
|
---|
| 754 | if (mUseImportanceSampling)
|
---|
| 755 | sprintf(filename, "rss-rays-i%04d.x3d", rssPass);
|
---|
| 756 | else
|
---|
| 757 | sprintf(filename, "rss-rays-%04d.x3d", rssPass);
|
---|
| 758 |
|
---|
[1112] | 759 |
|
---|
| 760 |
|
---|
[1694] | 761 | if (useRayBuffer)
|
---|
| 762 | vssRays.SelectRays(mExportNumRays, rayBuffer[mPass], true);
|
---|
[1112] | 763 |
|
---|
[492] | 764 | ExportRays(filename, vssRays, mExportNumRays);
|
---|
[1112] | 765 |
|
---|
[492] | 766 | // now export all contributing rays
|
---|
| 767 | VssRayContainer contributingRays;
|
---|
| 768 | vssRays.GetContributingRays(contributingRays, mPass);
|
---|
[508] | 769 | mStats<<"#NUM_CONTRIBUTING_RAYS\n"<<(int)contributingRays.size()<<endl;
|
---|
[492] | 770 | sprintf(filename, "rss-crays-%04d.x3d", rssPass);
|
---|
| 771 | ExportRays(filename, contributingRays, mExportNumRays);
|
---|
| 772 | }
|
---|
| 773 |
|
---|
| 774 |
|
---|
[467] | 775 | // add rays to the tree after the viewcells have been cast to have their contributions
|
---|
| 776 | // already when adding into the tree
|
---|
| 777 | // do not add those rays which have too low or no contribution....
|
---|
[1715] | 778 |
|
---|
[1785] | 779 |
|
---|
| 780 | if (mUseRssTree && mUseImportanceSampling) {
|
---|
[1715] | 781 | Debug<<"Adding rays...\n"<<flush;
|
---|
[563] | 782 | mRssTree->AddRays(vssRays);
|
---|
[1715] | 783 | Debug<<"done.\n"<<flush;
|
---|
[467] | 784 | if (mUpdateSubdivision) {
|
---|
[492] | 785 | int updatePasses = 1;
|
---|
| 786 | if (mPass % updatePasses == 0) {
|
---|
[1715] | 787 | Debug<<"Updating rss tree...\n"<<flush;
|
---|
[563] | 788 | int subdivided = mRssTree->UpdateSubdivision();
|
---|
[1715] | 789 | Debug<<"done.\n"<<flush;
|
---|
[492] | 790 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
[563] | 791 | cout<<"#total leaves = "<<mRssTree->stat.Leaves()<<endl;
|
---|
[492] | 792 | }
|
---|
[467] | 793 | }
|
---|
[447] | 794 | }
|
---|
[467] | 795 |
|
---|
[464] | 796 | if (mExportPvs) {
|
---|
[447] | 797 | char filename[64];
|
---|
[467] | 798 | sprintf(filename, "rss-pvs-%04d.x3d", rssPass);
|
---|
[563] | 799 | ExportPvs(filename, mRssTree);
|
---|
[447] | 800 | }
|
---|
[492] | 801 |
|
---|
[563] | 802 |
|
---|
[1785] | 803 | if (!mUseImportanceSampling || !mUseRssTree)
|
---|
[492] | 804 | CLEAR_CONTAINER(vssRays);
|
---|
[563] | 805 | // otherwise the rays get deleted by the rss tree update according to RssTree.maxRays ....
|
---|
[1785] | 806 |
|
---|
[467] | 807 | if (totalSamples >= mRssSamples + mInitialSamples)
|
---|
[447] | 808 | break;
|
---|
| 809 |
|
---|
[1613] | 810 |
|
---|
[467] | 811 | rssPass++;
|
---|
| 812 | mPass++;
|
---|
[563] | 813 | mRssTree->SetPass(mPass);
|
---|
[447] | 814 | }
|
---|
| 815 |
|
---|
[464] | 816 | if (mUseViewcells) {
|
---|
[466] | 817 |
|
---|
[1785] | 818 | if(0) {
|
---|
| 819 | VssRayContainer selectedRays;
|
---|
| 820 | int desired = mViewCellsManager->GetVisualizationSamples();
|
---|
| 821 |
|
---|
| 822 | mVssRays.SelectRays(desired, selectedRays);
|
---|
| 823 |
|
---|
| 824 | mViewCellsManager->Visualize(mObjects, selectedRays);
|
---|
[574] | 825 | }
|
---|
[556] | 826 |
|
---|
[1199] | 827 | // view cells after sampling
|
---|
| 828 | mViewCellsManager->PrintStatistics(Debug);
|
---|
[1785] | 829 |
|
---|
[1771] | 830 | EvalViewCellHistogram();
|
---|
[1785] | 831 |
|
---|
[1199] | 832 | //-- render simulation after merge
|
---|
| 833 | cout << "\nevaluating bsp view cells render time after sampling ... ";
|
---|
| 834 |
|
---|
| 835 | mRenderSimulator->RenderScene();
|
---|
| 836 | SimulationStatistics ss;
|
---|
| 837 | mRenderSimulator->GetStatistics(ss);
|
---|
| 838 |
|
---|
| 839 | cout << " finished" << endl;
|
---|
| 840 | cout << ss << endl;
|
---|
| 841 | Debug << ss << endl;
|
---|
[466] | 842 | }
|
---|
[1112] | 843 |
|
---|
| 844 |
|
---|
[1694] | 845 | if (useRayBuffer&& mExportRays && mUseImportanceSampling) {
|
---|
[1112] | 846 | char filename[64];
|
---|
| 847 | sprintf(filename, "rss-rays-i.x3d");
|
---|
| 848 |
|
---|
| 849 | rayBuffer.resize(mPass);
|
---|
| 850 | ExportRayAnimation(filename, rayBuffer);
|
---|
| 851 | }
|
---|
| 852 |
|
---|
[1581] | 853 |
|
---|
| 854 | // do not delete rss tree now - can be used for visualization..
|
---|
| 855 | #if 0
|
---|
[563] | 856 | Debug<<"Deleting RSS tree...\n";
|
---|
| 857 | delete mRssTree;
|
---|
| 858 | Debug<<"Done.\n";
|
---|
[1581] | 859 | #endif
|
---|
[466] | 860 |
|
---|
[1199] | 861 | //mViewCellsManager->ExportViewCells("visibility.xml",
|
---|
[871] | 862 | // true);
|
---|
[447] | 863 |
|
---|
[871] | 864 |
|
---|
[447] | 865 | return true;
|
---|
| 866 | }
|
---|
| 867 |
|
---|
[871] | 868 | }
|
---|