[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 | #define USE_RSS_TREE 1
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| 18 |
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[863] | 19 | namespace GtpVisibilityPreprocessor {
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[860] | 20 |
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| 21 |
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[549] | 22 | static bool useViewSpaceBox = false;
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[447] | 23 | static bool use2dSampling = false;
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[516] | 24 |
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| 25 |
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| 26 | // not supported anymore!
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[463] | 27 | static bool fromBoxVisibility = false;
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[447] | 28 |
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[1199] | 29 | #define ADD_RAYS_IN_PLACE 1
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[1112] | 30 |
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[447] | 31 | RssPreprocessor::RssPreprocessor():
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| 32 | mVssRays()
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| 33 | {
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| 34 | // this should increase coherence of the samples
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[1004] | 35 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.samplesPerPass", mSamplesPerPass);
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| 36 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.initialSamples", mInitialSamples);
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| 37 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.vssSamples", mRssSamples);
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| 38 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.vssSamplesPerPass", mRssSamplesPerPass);
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| 39 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useImportanceSampling", mUseImportanceSampling);
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[464] | 40 |
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[1004] | 41 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.pvs", mExportPvs);
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| 42 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.rssTree", mExportRssTree);
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| 43 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.rays", mExportRays);
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| 44 | Environment::GetSingleton()->GetIntValue("RssPreprocessor.Export.numRays", mExportNumRays);
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| 45 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useViewcells", mUseViewcells);
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| 46 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.objectBasedSampling", mObjectBasedSampling);
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| 47 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.directionalSampling", mDirectionalSampling);
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[464] | 48 |
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[1004] | 49 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.loadInitialSamples", mLoadInitialSamples);
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| 50 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.storeInitialSamples", mStoreInitialSamples);
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| 51 | Environment::GetSingleton()->GetBoolValue("RssPreprocessor.updateSubdivision", mUpdateSubdivision);
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[464] | 52 |
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[447] | 53 | mStats.open("stats.log");
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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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| 58 | bool
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| 59 | RssPreprocessor::GenerateRays(
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| 60 | const int number,
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| 61 | const int sampleType,
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| 62 | SimpleRayContainer &rays
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| 63 | )
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| 64 | {
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| 65 | bool result = false;
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[1715] | 66 |
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| 67 | Debug<<"Generate rays...\n"<<flush;
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[563] | 68 |
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| 69 | switch (sampleType) {
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[1520] | 70 | case SamplingStrategy::RSS_BASED_DISTRIBUTION:
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| 71 | case SamplingStrategy::RSS_SILHOUETTE_BASED_DISTRIBUTION:
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[563] | 72 | if (mRssTree) {
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| 73 | GenerateImportanceRays(mRssTree, number, rays);
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| 74 | result = true;
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| 75 | }
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| 76 | break;
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[752] | 77 |
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[563] | 78 | default:
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| 79 | result = Preprocessor::GenerateRays(number, sampleType, rays);
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| 80 | }
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| 81 |
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[1112] | 82 | // rays.NormalizePdf();
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[1715] | 83 | Debug<<"done.\n"<<flush;
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| 84 |
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[563] | 85 | return result;
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[447] | 86 | }
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| 87 |
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[563] | 88 |
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| 89 |
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[1715] | 90 |
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[447] | 91 | RssPreprocessor::~RssPreprocessor()
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| 92 | {
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[492] | 93 | // mVssRays get deleted in the tree
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| 94 | // CLEAR_CONTAINER(mVssRays);
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[447] | 95 | }
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| 96 |
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| 97 |
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| 98 |
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[576] | 99 | void
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| 100 | RssPreprocessor::ExportObjectRays(VssRayContainer &rays,
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| 101 | const int objectId)
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| 102 | {
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| 103 | ObjectContainer::const_iterator oi;
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[447] | 104 |
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[576] | 105 | Intersectable *object = NULL;
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| 106 | for (oi = mObjects.begin(); oi != mObjects.end(); ++oi)
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| 107 | if (objectId == (*oi)->GetId()) {
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| 108 | object = *oi;
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| 109 | break;
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| 110 | }
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[447] | 111 |
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[576] | 112 | if (object == NULL)
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| 113 | return;
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| 114 |
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| 115 | VssRayContainer selectedRays;
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| 116 | VssRayContainer::const_iterator it= rays.begin(), it_end = rays.end();
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| 117 |
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| 118 |
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| 119 | for (; it != it_end; ++it) {
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| 120 | if ((*it)->mTerminationObject == object)
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| 121 | selectedRays.push_back(*it);
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| 122 | }
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| 123 |
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| 124 |
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| 125 | Exporter *exporter = Exporter::GetExporter("object-rays.x3d");
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| 126 | // exporter->SetWireframe();
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| 127 | // exporter->ExportKdTree(*mKdTree);
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| 128 | exporter->SetFilled();
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| 129 | exporter->ExportIntersectable(object);
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| 130 | exporter->ExportRays(selectedRays, RgbColor(1, 0, 0));
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| 131 |
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| 132 | delete exporter;
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| 133 |
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| 134 | }
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| 135 |
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| 136 |
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[447] | 137 | int
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| 138 | RssPreprocessor::GenerateImportanceRays(RssTree *rssTree,
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| 139 | const int desiredSamples,
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| 140 | SimpleRayContainer &rays
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| 141 | )
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| 142 | {
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| 143 | int num;
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[463] | 144 |
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[492] | 145 | rssTree->UpdateTreeStatistics();
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[463] | 146 |
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[447] | 147 | cout<<
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[492] | 148 | "#RSS_AVG_PVS_SIZE\n"<<rssTree->stat.avgPvsSize<<endl<<
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| 149 | "#RSS_AVG_RAYS\n"<<rssTree->stat.avgRays<<endl<<
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| 150 | "#RSS_AVG_RAY_CONTRIB\n"<<rssTree->stat.avgRayContribution<<endl<<
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| 151 | "#RSS_AVG_PVS_ENTROPY\n"<<rssTree->stat.avgPvsEntropy<<endl<<
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| 152 | "#RSS_AVG_RAY_LENGTH_ENTROPY\n"<<rssTree->stat.avgRayLengthEntropy<<endl<<
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| 153 | "#RSS_AVG_IMPORTANCE\n"<<rssTree->stat.avgImportance<<endl;
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[447] | 154 |
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| 155 | if (0) {
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[492] | 156 | float p = desiredSamples/(float)(rssTree->stat.avgRayContribution*rssTree->stat.Leaves());
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[447] | 157 | num = rssTree->GenerateRays(p, rays);
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| 158 | } else {
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[459] | 159 | int leaves = rssTree->stat.Leaves()/1;
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[1112] | 160 |
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[447] | 161 | num = rssTree->GenerateRays(desiredSamples, leaves, rays);
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| 162 | }
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| 163 |
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| 164 |
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| 165 | return num;
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| 166 | }
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| 167 |
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| 168 |
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| 169 | bool
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| 170 | RssPreprocessor::ExportRays(const char *filename,
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| 171 | const VssRayContainer &vssRays,
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| 172 | const int number
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| 173 | )
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| 174 | {
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| 175 | cout<<"Exporting vss rays..."<<endl<<flush;
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| 176 |
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| 177 | Exporter *exporter = NULL;
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| 178 | exporter = Exporter::GetExporter(filename);
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[1112] | 179 | if (0) {
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| 180 | exporter->SetWireframe();
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| 181 | exporter->ExportKdTree(*mKdTree);
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| 182 | }
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[447] | 183 | exporter->SetFilled();
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[556] | 184 | // $$JB temporarily do not export the scene
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[752] | 185 | if (0)
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[1328] | 186 | exporter->ExportScene(mSceneGraph->GetRoot());
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[447] | 187 | exporter->SetWireframe();
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| 188 |
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[1563] | 189 | if (1) {
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[447] | 190 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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[1112] | 191 | exporter->ExportBox(mViewCellsManager->GetViewSpaceBox());
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[447] | 192 | exporter->ResetForcedMaterial();
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| 193 | }
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[1112] | 194 |
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[492] | 195 | VssRayContainer rays;
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| 196 |
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[1112] | 197 | vssRays.SelectRays(number, rays);
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[447] | 198 |
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| 199 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
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| 200 |
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| 201 | delete exporter;
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| 202 |
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| 203 | cout<<"done."<<endl<<flush;
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| 204 |
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| 205 | return true;
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| 206 | }
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| 207 |
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[1112] | 208 | bool
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| 209 | RssPreprocessor::ExportRayAnimation(const char *filename,
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| 210 | const vector<VssRayContainer> &vssRays
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| 211 | )
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| 212 | {
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| 213 | cout<<"Exporting vss rays..."<<endl<<flush;
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| 214 |
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| 215 | Exporter *exporter = NULL;
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| 216 | exporter = Exporter::GetExporter(filename);
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| 217 | if (0) {
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| 218 | exporter->SetWireframe();
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| 219 | exporter->ExportKdTree(*mKdTree);
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| 220 | }
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| 221 | exporter->SetFilled();
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| 222 | // $$JB temporarily do not export the scene
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| 223 | if (1)
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[1328] | 224 | exporter->ExportScene(mSceneGraph->GetRoot());
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[1112] | 225 | exporter->SetWireframe();
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[447] | 226 |
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[1563] | 227 | if (1) {
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[1112] | 228 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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| 229 | exporter->ExportBox(mViewCellsManager->GetViewSpaceBox());
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| 230 | exporter->ResetForcedMaterial();
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| 231 | }
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| 232 |
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| 233 | exporter->ExportRaySets(vssRays, RgbColor(1, 0, 0));
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| 234 |
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| 235 | delete exporter;
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| 236 |
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| 237 | cout<<"done."<<endl<<flush;
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| 238 |
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| 239 | return true;
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| 240 | }
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| 241 |
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| 242 |
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[447] | 243 | bool
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| 244 | RssPreprocessor::ExportRssTree(char *filename,
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| 245 | RssTree *tree,
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| 246 | const Vector3 &dir
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| 247 | )
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| 248 | {
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| 249 | Exporter *exporter = Exporter::GetExporter(filename);
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| 250 | exporter->SetFilled();
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[1328] | 251 | exporter->ExportScene(mSceneGraph->GetRoot());
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[447] | 252 | // exporter->SetWireframe();
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| 253 | bool result = exporter->ExportRssTree2( *tree, dir );
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| 254 | delete exporter;
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| 255 | return result;
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| 256 | }
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| 257 |
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| 258 | bool
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| 259 | RssPreprocessor::ExportRssTreeLeaf(char *filename,
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| 260 | RssTree *tree,
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| 261 | RssTreeLeaf *leaf)
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| 262 | {
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| 263 | Exporter *exporter = NULL;
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| 264 | exporter = Exporter::GetExporter(filename);
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| 265 | exporter->SetWireframe();
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| 266 | exporter->ExportKdTree(*mKdTree);
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| 267 |
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| 268 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 269 | exporter->ExportBox(tree->GetBBox(leaf));
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| 270 | exporter->ResetForcedMaterial();
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| 271 |
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| 272 | VssRayContainer rays[4];
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| 273 | for (int i=0; i < leaf->rays.size(); i++) {
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| 274 | int k = leaf->rays[i].GetRayClass();
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| 275 | rays[k].push_back(leaf->rays[i].mRay);
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| 276 | }
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| 277 |
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| 278 | // SOURCE RAY
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| 279 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
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| 280 | // TERMINATION RAY
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| 281 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
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| 282 | // PASSING_RAY
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| 283 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
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| 284 | // CONTAINED_RAY
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| 285 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
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| 286 |
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| 287 | delete exporter;
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| 288 | return true;
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| 289 | }
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| 290 |
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| 291 | void
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| 292 | RssPreprocessor::ExportRssTreeLeaves(RssTree *tree, const int number)
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| 293 | {
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| 294 | vector<RssTreeLeaf *> leaves;
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| 295 | tree->CollectLeaves(leaves);
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| 296 |
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| 297 | int num = 0;
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| 298 | int i;
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| 299 | float p = number / (float)leaves.size();
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| 300 | for (i=0; i < leaves.size(); i++) {
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| 301 | if (RandomValue(0,1) < p) {
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| 302 | char filename[64];
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| 303 | sprintf(filename, "rss-leaf-%04d.x3d", num);
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| 304 | ExportRssTreeLeaf(filename, tree, leaves[i]);
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| 305 | num++;
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| 306 | }
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| 307 | if (num >= number)
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| 308 | break;
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| 309 | }
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| 310 | }
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| 311 |
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| 312 |
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| 313 | float
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| 314 | RssPreprocessor::GetAvgPvsSize(RssTree *tree,
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| 315 | const vector<AxisAlignedBox3> &viewcells
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| 316 | )
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| 317 | {
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| 318 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
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| 319 |
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| 320 | int sum = 0;
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| 321 | for (it = viewcells.begin(); it != it_end; ++ it)
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| 322 | sum += tree->GetPvsSize(*it);
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| 323 |
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| 324 | return sum/(float)viewcells.size();
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| 325 | }
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| 326 |
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| 327 |
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| 328 | void
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| 329 | RssPreprocessor::ExportPvs(char *filename,
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| 330 | RssTree *rssTree
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| 331 | )
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| 332 | {
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| 333 | ObjectContainer pvs;
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| 334 | if (rssTree->CollectRootPvs(pvs)) {
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| 335 | Exporter *exporter = Exporter::GetExporter(filename);
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| 336 | exporter->SetFilled();
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| 337 | exporter->ExportGeometry(pvs);
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[459] | 338 | exporter->SetWireframe();
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| 339 | exporter->ExportBox(rssTree->bbox);
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| 340 | exporter->ExportViewpoint(rssTree->bbox.Center(), Vector3(1,0,0));
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[447] | 341 | delete exporter;
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| 342 | }
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| 343 | }
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| 344 |
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[492] | 345 |
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| 346 | void
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| 347 | RssPreprocessor::ComputeRenderError()
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| 348 | {
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| 349 | // compute rendering error
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[1145] | 350 |
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[752] | 351 | if (renderer && renderer->mPvsStatFrames) {
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[496] | 352 | // emit EvalPvsStat();
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| 353 | // QMutex mutex;
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| 354 | // mutex.lock();
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| 355 | // renderer->mRenderingFinished.wait(&mutex);
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| 356 | // mutex.unlock();
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[556] | 357 |
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[496] | 358 | renderer->EvalPvsStat();
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[492] | 359 | mStats <<
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| 360 | "#AvgPvsRenderError\n" <<renderer->mPvsStat.GetAvgError()<<endl<<
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| 361 | "#MaxPvsRenderError\n" <<renderer->mPvsStat.GetMaxError()<<endl<<
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[713] | 362 | "#ErrorFreeFrames\n" <<renderer->mPvsStat.GetErrorFreeFrames()<<endl<<
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| 363 | "#AvgRenderPvs\n" <<renderer->mPvsStat.GetAvgPvs()<<endl;
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[492] | 364 | }
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| 365 | }
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| 366 |
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[1112] | 367 | void
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[1737] | 368 | NormalizeRatios(float ratios[4])
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[1112] | 369 | {
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| 370 | int i;
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| 371 | float sumRatios;
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[1737] | 372 | sumRatios = ratios[0] + ratios[1] + ratios[2] + ratios[3];
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[1112] | 373 | if (sumRatios == 0.0f) {
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| 374 | ratios[0] = ratios[1] = ratios[2] = 1.0f;
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[1737] | 375 | sumRatios = 4.0f;
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[1112] | 376 | }
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| 377 |
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[1737] | 378 | for (i=0 ; i < 4; i++)
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[1112] | 379 | ratios[i]/=sumRatios;
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[1715] | 380 |
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| 381 | #define MIN_RATIO 0.1f
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| 382 |
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| 383 | #if USE_RSS_TREE
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| 384 | i = 0;
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| 385 | #else
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| 386 | i = 1;
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| 387 | #endif
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| 388 |
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[1737] | 389 | for (; i < 4; i++)
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[1112] | 390 | if (ratios[i] < MIN_RATIO)
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| 391 | ratios[i] = MIN_RATIO;
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[563] | 392 |
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[1737] | 393 | sumRatios = ratios[0] + ratios[1] + ratios[2] + ratios[3];
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| 394 | for (i=0 ; i < 4; i++)
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[1112] | 395 | ratios[i]/=sumRatios;
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| 396 |
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| 397 | }
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[563] | 398 |
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[447] | 399 | bool
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| 400 | RssPreprocessor::ComputeVisibility()
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| 401 | {
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[556] | 402 |
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[811] | 403 | Debug << "type: rss" << endl;
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[579] | 404 |
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[464] | 405 | cout<<"Rss Preprocessor started\n"<<flush;
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[567] | 406 | // cout<<"Memory/ray "<<sizeof(VssRay)+sizeof(RssTreeNode::RayInfo)<<endl;
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[492] | 407 |
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| 408 | Randomize(0);
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| 409 |
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[1694] | 410 | const bool useRayBuffer = false;
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| 411 |
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[1112] | 412 | vector<VssRayContainer> rayBuffer(50);
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| 413 |
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[447] | 414 | long startTime = GetTime();
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[1292] | 415 | long lastTime;
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| 416 | float totalTime;
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[447] | 417 |
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| 418 | int totalSamples = 0;
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| 419 |
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[577] | 420 | // if not already loaded, construct view cells from file
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[1112] | 421 | if (!mLoadViewCells)
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| 422 | {
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[1563] | 423 | // construct view cells using it's own set of samples
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| 424 | mViewCellsManager->Construct(this);
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| 425 |
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| 426 | //-- several visualizations and statistics
|
---|
| 427 | Debug << "view cells construction finished: " << endl;
|
---|
| 428 | mViewCellsManager->PrintStatistics(Debug);
|
---|
[574] | 429 | }
|
---|
[1563] | 430 |
|
---|
[1112] | 431 |
|
---|
[492] | 432 | int rssPass = 0;
|
---|
| 433 | int rssSamples = 0;
|
---|
[1737] | 434 |
|
---|
| 435 | mDistributions.push_back(SamplingDistribution(SamplingStrategy::RSS_BASED_DISTRIBUTION));
|
---|
| 436 | mDistributions.push_back(SamplingDistribution(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION));
|
---|
| 437 | mDistributions.push_back(SamplingDistribution(SamplingStrategy::DIRECTION_BASED_DISTRIBUTION));
|
---|
| 438 | mDistributions.push_back(SamplingDistribution(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION));
|
---|
[563] | 439 |
|
---|
[492] | 440 | if (mLoadInitialSamples) {
|
---|
| 441 | cout << "Loading samples from file ... ";
|
---|
| 442 | LoadSamples(mVssRays, mObjects);
|
---|
| 443 | cout << "finished\n" << endl;
|
---|
| 444 | } else {
|
---|
[563] | 445 | SimpleRayContainer rays;
|
---|
[1737] | 446 |
|
---|
[871] | 447 | cout<<"Generating initial rays..."<<endl<<flush;
|
---|
[1737] | 448 |
|
---|
[1199] | 449 | if (mUseImportanceSampling) {
|
---|
[1737] | 450 | GenerateRays(mInitialSamples/3, SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION, rays);
|
---|
[1585] | 451 | // GenerateRays(mInitialSamples/3, SamplingStrategy::OBJECT_BASED_DISTRIBUTION, rays);
|
---|
[1737] | 452 | GenerateRays(mInitialSamples/3, SamplingStrategy::DIRECTION_BASED_DISTRIBUTION, rays);
|
---|
| 453 | GenerateRays(mInitialSamples/3, SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION, rays);
|
---|
[1199] | 454 | // GenerateRays(mInitialSamples/4, OBJECT_DIRECTION_BASED_DISTRIBUTION, rays);
|
---|
[1737] | 455 |
|
---|
| 456 |
|
---|
[1199] | 457 | } else {
|
---|
[1737] | 458 | int rayType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[1199] | 459 | if (mObjectBasedSampling)
|
---|
[1520] | 460 | rayType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
|
---|
[1199] | 461 | else
|
---|
| 462 | if (mDirectionalSampling)
|
---|
[1520] | 463 | rayType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
|
---|
[1199] | 464 | cout<<"Generating rays..."<<endl;
|
---|
| 465 | GenerateRays(mRssSamplesPerPass, rayType, rays);
|
---|
| 466 | }
|
---|
| 467 |
|
---|
| 468 |
|
---|
[871] | 469 | cout<<"Casting initial rays..."<<endl<<flush;
|
---|
[1520] | 470 | CastRays(rays, mVssRays, true);
|
---|
[576] | 471 |
|
---|
| 472 | ExportObjectRays(mVssRays, 1546);
|
---|
[563] | 473 | }
|
---|
| 474 |
|
---|
| 475 | cout << "#totalRayStackSize=" << (int)mVssRays.size() << endl <<flush;
|
---|
| 476 |
|
---|
| 477 | rssSamples += (int)mVssRays.size();
|
---|
| 478 | totalSamples += mInitialSamples;
|
---|
| 479 | mPass++;
|
---|
| 480 |
|
---|
| 481 | if (mExportRays) {
|
---|
[577] | 482 |
|
---|
[563] | 483 | char filename[64];
|
---|
| 484 | sprintf(filename, "rss-rays-initial.x3d");
|
---|
| 485 | ExportRays(filename, mVssRays, mExportNumRays);
|
---|
[1112] | 486 |
|
---|
[1694] | 487 | if (useRayBuffer)
|
---|
| 488 | mVssRays.SelectRays(mExportNumRays, rayBuffer[0], true);
|
---|
[577] | 489 |
|
---|
[563] | 490 | }
|
---|
| 491 |
|
---|
| 492 | if (mStoreInitialSamples) {
|
---|
| 493 | cout << "Writing samples to file ... ";
|
---|
| 494 | ExportSamples(mVssRays);
|
---|
| 495 | cout << "finished\n" << endl;
|
---|
| 496 | }
|
---|
[492] | 497 |
|
---|
[563] | 498 | if (mUseViewcells) {
|
---|
| 499 |
|
---|
[871] | 500 | cout<<"Computing sample contributions..."<<endl<<flush;
|
---|
[563] | 501 | // evaluate contributions of the intitial rays
|
---|
[574] | 502 | mViewCellsManager->ComputeSampleContributions(mVssRays, true, false);
|
---|
[871] | 503 | cout<<"done.\n"<<flush;
|
---|
[1292] | 504 |
|
---|
| 505 | long time = GetTime();
|
---|
[1723] | 506 | totalTime = TimeDiff(startTime, time)*1e-3f;
|
---|
[1292] | 507 | lastTime = time;
|
---|
[492] | 508 |
|
---|
[563] | 509 | mStats <<
|
---|
| 510 | "#Pass\n" <<mPass<<endl<<
|
---|
| 511 | "#RssPass\n" <<rssPass<<endl<<
|
---|
[1292] | 512 | "#Time\n" << totalTime <<endl<<
|
---|
[563] | 513 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 514 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
[569] | 515 |
|
---|
| 516 | {
|
---|
| 517 | VssRayContainer contributingRays;
|
---|
[1112] | 518 | mVssRays.GetContributingRays(contributingRays, 0);
|
---|
[569] | 519 | mStats<<"#NUM_CONTRIBUTING_RAYS\n"<<(int)contributingRays.size()<<endl;
|
---|
[1112] | 520 | if (mExportRays) {
|
---|
| 521 | char filename[64];
|
---|
| 522 | sprintf(filename, "rss-crays-%04d.x3d", 0);
|
---|
| 523 | ExportRays(filename, contributingRays, mExportNumRays);
|
---|
| 524 | }
|
---|
[569] | 525 | }
|
---|
[563] | 526 |
|
---|
| 527 | mVssRays.PrintStatistics(mStats);
|
---|
| 528 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
[502] | 529 |
|
---|
[572] | 530 | // viewcells->UpdatePVS(newVssRays);
|
---|
| 531 | Debug<<"Valid viewcells before set validity: "<<mViewCellsManager->CountValidViewcells()<<endl;
|
---|
| 532 | // cull viewcells with PVS > median (0.5f)
|
---|
[752] | 533 | //mViewCellsManager->SetValidityPercentage(0, 0.5f);
|
---|
| 534 | mViewCellsManager->SetValidityPercentage(0, 1.0f);
|
---|
[572] | 535 | Debug<<"Valid viewcells after set validity: "<<mViewCellsManager->CountValidViewcells()<<endl;
|
---|
[563] | 536 |
|
---|
| 537 | ComputeRenderError();
|
---|
| 538 | }
|
---|
[492] | 539 |
|
---|
| 540 | rssPass++;
|
---|
| 541 |
|
---|
[563] | 542 | mRssTree = new RssTree;
|
---|
| 543 | mRssTree->SetPass(mPass);
|
---|
[492] | 544 |
|
---|
[527] | 545 | /// compute view cell contribution of rays if view cells manager already constructed
|
---|
[752] | 546 | // mViewCellsManager->ComputeSampleContributions(mVssRays, true, false);
|
---|
[527] | 547 |
|
---|
[467] | 548 | if (mUseImportanceSampling) {
|
---|
[1715] | 549 |
|
---|
| 550 | #if USE_RSS_TREE
|
---|
[563] | 551 | mRssTree->Construct(mObjects, mVssRays);
|
---|
[1715] | 552 | #endif
|
---|
[467] | 553 |
|
---|
[563] | 554 | mRssTree->stat.Print(mStats);
|
---|
| 555 | cout<<"RssTree root PVS size = "<<mRssTree->GetRootPvsSize()<<endl;
|
---|
| 556 |
|
---|
[467] | 557 | if (mExportRssTree) {
|
---|
[563] | 558 | ExportRssTree("rss-tree-100.x3d", mRssTree, Vector3(1,0,0));
|
---|
| 559 | ExportRssTree("rss-tree-001.x3d", mRssTree, Vector3(0,0,1));
|
---|
| 560 | ExportRssTree("rss-tree-101.x3d", mRssTree, Vector3(1,0,1));
|
---|
| 561 | ExportRssTree("rss-tree-101m.x3d", mRssTree, Vector3(-1,0,-1));
|
---|
| 562 | ExportRssTreeLeaves(mRssTree, 10);
|
---|
[467] | 563 | }
|
---|
| 564 |
|
---|
| 565 | if (mExportPvs) {
|
---|
[563] | 566 | ExportPvs("rss-pvs-initial.x3d", mRssTree);
|
---|
[467] | 567 | }
|
---|
[459] | 568 | }
|
---|
[467] | 569 |
|
---|
[466] | 570 |
|
---|
[1715] | 571 |
|
---|
[447] | 572 | while (1) {
|
---|
[1715] | 573 |
|
---|
[1283] | 574 | static SimpleRayContainer rays;
|
---|
| 575 | static VssRayContainer vssRays;
|
---|
| 576 | static VssRayContainer tmpVssRays;
|
---|
[1715] | 577 |
|
---|
| 578 | rays.reserve((int)(1.1f*mRssSamplesPerPass));
|
---|
| 579 |
|
---|
[1283] | 580 | rays.clear();
|
---|
| 581 | vssRays.clear();
|
---|
| 582 | tmpVssRays.clear();
|
---|
[1715] | 583 |
|
---|
[563] | 584 | int castRays = 0;
|
---|
| 585 | if (mUseImportanceSampling) {
|
---|
[567] | 586 |
|
---|
[1715] | 587 | #if USE_RSS_TREE
|
---|
[1737] | 588 | static float ratios[] = {0.9f,0.05f,0.05f,0.05f};
|
---|
[1715] | 589 | #else
|
---|
[1737] | 590 | static float ratios[] = {0.0f,0.05f,0.05f,0.05f};
|
---|
[1715] | 591 | #endif
|
---|
| 592 | NormalizeRatios(ratios);
|
---|
| 593 |
|
---|
[1737] | 594 | cout<<"New ratios: "<<ratios[0]<<" "<<ratios[1]<<" "<<ratios[2]<<" "<<ratios[3]<<endl;
|
---|
[1715] | 595 |
|
---|
[1112] | 596 | //float ratios[] = {1.0f,0.0f,0.0f};
|
---|
| 597 |
|
---|
[1737] | 598 | int nrays[4];
|
---|
| 599 | float contributions[4];
|
---|
| 600 | float times[4];
|
---|
[1112] | 601 |
|
---|
[1150] | 602 | long t1;
|
---|
[567] | 603 |
|
---|
[1112] | 604 | t1 = GetTime();
|
---|
| 605 |
|
---|
[1715] | 606 | GenerateRays(int(mRssSamplesPerPass*ratios[0]),
|
---|
| 607 | SamplingStrategy::RSS_BASED_DISTRIBUTION,
|
---|
| 608 | rays);
|
---|
| 609 |
|
---|
[1302] | 610 | rays.NormalizePdf((float)rays.size());
|
---|
[1112] | 611 |
|
---|
[1520] | 612 | CastRays(rays, tmpVssRays, true);
|
---|
[1297] | 613 | castRays += (int)rays.size();
|
---|
[1112] | 614 | #if ADD_RAYS_IN_PLACE
|
---|
| 615 | contributions[0] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
|
---|
| 616 | #else
|
---|
| 617 | contributions[0] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
|
---|
| 618 | #endif
|
---|
| 619 | times[0] = TimeDiff(t1, GetTime());
|
---|
[1302] | 620 | nrays[0] = (int)rays.size();
|
---|
[1112] | 621 |
|
---|
| 622 | mStats<<"#RssRelContrib"<<endl<<contributions[0]/nrays[0]<<endl;
|
---|
| 623 |
|
---|
[563] | 624 | vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
|
---|
| 625 | rays.clear();
|
---|
| 626 | tmpVssRays.clear();
|
---|
[567] | 627 | if (ratios[1]!=0.0f) {
|
---|
[1112] | 628 | t1 = GetTime();
|
---|
[1520] | 629 | GenerateRays(int(mRssSamplesPerPass*ratios[1]), SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION, rays);
|
---|
| 630 | CastRays(rays, tmpVssRays, true);
|
---|
[1302] | 631 | castRays += (int)rays.size();
|
---|
[1112] | 632 | #if ADD_RAYS_IN_PLACE
|
---|
| 633 | contributions[1] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
|
---|
| 634 | #else
|
---|
| 635 | contributions[1] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
|
---|
| 636 | #endif
|
---|
| 637 | times[1] = TimeDiff(t1, GetTime());
|
---|
[1302] | 638 | nrays[1] = (int)rays.size();
|
---|
[1112] | 639 |
|
---|
| 640 | mStats<<"#SpatialRelContrib"<<endl<<contributions[1]/nrays[1]<<endl;
|
---|
[567] | 641 |
|
---|
| 642 | vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
|
---|
| 643 |
|
---|
| 644 | rays.clear();
|
---|
| 645 | tmpVssRays.clear();
|
---|
| 646 | }
|
---|
[563] | 647 |
|
---|
| 648 |
|
---|
[567] | 649 | if (ratios[2]!=0.0f) {
|
---|
[1112] | 650 | t1 = GetTime();
|
---|
[1520] | 651 | GenerateRays(int(mRssSamplesPerPass*ratios[2]), SamplingStrategy::DIRECTION_BASED_DISTRIBUTION, rays);
|
---|
| 652 | CastRays(rays, tmpVssRays, true);
|
---|
[1302] | 653 | castRays += (int)rays.size();
|
---|
[1112] | 654 | #if ADD_RAYS_IN_PLACE
|
---|
| 655 | contributions[2] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
|
---|
| 656 | #else
|
---|
| 657 | contributions[2] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
|
---|
| 658 | #endif
|
---|
| 659 | times[2] = TimeDiff(t1, GetTime());
|
---|
[1302] | 660 | nrays[2] = (int)rays.size();
|
---|
[567] | 661 |
|
---|
[1112] | 662 | mStats<<"#DirectionalRelContrib"<<endl<<contributions[2]/nrays[2]<<endl;
|
---|
| 663 |
|
---|
[567] | 664 | vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
|
---|
| 665 |
|
---|
| 666 | rays.clear();
|
---|
| 667 | tmpVssRays.clear();
|
---|
| 668 | }
|
---|
[563] | 669 |
|
---|
[1737] | 670 | if (ratios[3]!=0.0f) {
|
---|
| 671 | t1 = GetTime();
|
---|
| 672 | GenerateRays(int(mRssSamplesPerPass*ratios[3]),
|
---|
| 673 | SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION, rays);
|
---|
| 674 | CastRays(rays, tmpVssRays, true);
|
---|
| 675 | castRays += (int)rays.size();
|
---|
| 676 | #if ADD_RAYS_IN_PLACE
|
---|
| 677 | contributions[3] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
|
---|
| 678 | #else
|
---|
| 679 | contributions[3] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
|
---|
| 680 | #endif
|
---|
| 681 | times[3] = TimeDiff(t1, GetTime());
|
---|
| 682 | nrays[3] = (int)rays.size();
|
---|
| 683 |
|
---|
| 684 | mStats<<"#DirectionalRelContrib"<<endl<<contributions[3]/nrays[3]<<endl;
|
---|
| 685 |
|
---|
| 686 | vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
|
---|
| 687 |
|
---|
| 688 | rays.clear();
|
---|
| 689 | tmpVssRays.clear();
|
---|
| 690 | }
|
---|
| 691 |
|
---|
[1112] | 692 |
|
---|
| 693 | // now evaluate the ratios for the next pass
|
---|
[1613] | 694 | #define TIME_WEIGHT 0.5f
|
---|
[1112] | 695 |
|
---|
[1715] | 696 | #if 1
|
---|
[1613] | 697 | ratios[0] = sqr(contributions[0]/(TIME_WEIGHT*times[0] + (1 - TIME_WEIGHT)*nrays[0]));
|
---|
| 698 | ratios[1] = sqr(contributions[1]/(TIME_WEIGHT*times[1] + (1 - TIME_WEIGHT)*nrays[1]));
|
---|
| 699 | ratios[2] = sqr(contributions[2]/(TIME_WEIGHT*times[2] + (1 - TIME_WEIGHT)*nrays[2]));
|
---|
[1737] | 700 | ratios[3] = sqr(contributions[3]/(TIME_WEIGHT*times[3] + (1 - TIME_WEIGHT)*nrays[3]));
|
---|
[1715] | 701 | #else
|
---|
| 702 | ratios[0] = contributions[0]/(TIME_WEIGHT*times[0] + (1 - TIME_WEIGHT)*nrays[0]);
|
---|
| 703 | ratios[1] = contributions[1]/(TIME_WEIGHT*times[1] + (1 - TIME_WEIGHT)*nrays[1]);
|
---|
| 704 | ratios[2] = contributions[2]/(TIME_WEIGHT*times[2] + (1 - TIME_WEIGHT)*nrays[2]);
|
---|
[1737] | 705 | ratios[3] = contributions[3]/(TIME_WEIGHT*times[3] + (1 - TIME_WEIGHT)*nrays[3]);
|
---|
| 706 |
|
---|
[1715] | 707 | #endif
|
---|
[1112] | 708 |
|
---|
[1715] | 709 | #if !USE_RSS_TREE
|
---|
| 710 | ratios[0] = 0;
|
---|
| 711 | #endif
|
---|
[1112] | 712 |
|
---|
[563] | 713 | // add contributions of all rays at once...
|
---|
[1112] | 714 | #if !ADD_RAYS_IN_PLACE
|
---|
[563] | 715 | mViewCellsManager->AddSampleContributions(vssRays);
|
---|
[1112] | 716 | #endif
|
---|
[563] | 717 | }
|
---|
| 718 | else {
|
---|
[1520] | 719 | int rayType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[563] | 720 | if (mObjectBasedSampling)
|
---|
[1520] | 721 | rayType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
|
---|
[563] | 722 | else
|
---|
| 723 | if (mDirectionalSampling)
|
---|
[1520] | 724 | rayType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
|
---|
[752] | 725 |
|
---|
| 726 | cout<<"Generating rays..."<<endl;
|
---|
| 727 |
|
---|
[563] | 728 | GenerateRays(mRssSamplesPerPass, rayType, rays);
|
---|
[752] | 729 | cout<<"done."<<endl;
|
---|
| 730 |
|
---|
[1715] | 731 | cout<<"Casting rays..."<<endl; CastRays(rays, vssRays, true);
|
---|
[752] | 732 | cout<<"done."<<endl;
|
---|
[1302] | 733 | castRays += (int)rays.size();
|
---|
[563] | 734 | if (mUseViewcells) {
|
---|
| 735 | /// compute view cell contribution of rays
|
---|
[752] | 736 | cout<<"Computing sample contributions..."<<endl;
|
---|
[574] | 737 | mViewCellsManager->ComputeSampleContributions(vssRays, true, false);
|
---|
[752] | 738 | cout<<"done."<<endl;
|
---|
[447] | 739 | }
|
---|
[563] | 740 |
|
---|
| 741 |
|
---|
[447] | 742 | }
|
---|
[563] | 743 | totalSamples += castRays;
|
---|
[503] | 744 | rssSamples += (int)vssRays.size();
|
---|
[467] | 745 |
|
---|
[884] | 746 | cout<<"Generated "<<castRays<<" rays, progress "<<100.0f*totalSamples/((float) mRssSamples +
|
---|
| 747 | mInitialSamples)<<"%\n";
|
---|
[492] | 748 |
|
---|
[1292] | 749 |
|
---|
| 750 | long time = GetTime();
|
---|
| 751 | totalTime += TimeDiff(lastTime, time);
|
---|
| 752 | lastTime = time;
|
---|
[492] | 753 |
|
---|
[467] | 754 | mStats <<
|
---|
| 755 | "#Pass\n" <<mPass<<endl<<
|
---|
| 756 | "#RssPass\n" <<rssPass<<endl<<
|
---|
| 757 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3<<endl<<
|
---|
| 758 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 759 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
| 760 |
|
---|
[492] | 761 |
|
---|
[466] | 762 | if (mUseViewcells) {
|
---|
[1715] | 763 | Debug<<"Print statistics...\n"<<flush;
|
---|
[467] | 764 | vssRays.PrintStatistics(mStats);
|
---|
| 765 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
[1715] | 766 | Debug<<"done.\n"<<flush;
|
---|
[466] | 767 | }
|
---|
[576] | 768 |
|
---|
| 769 | if (0 && mPass > 0) {
|
---|
[1145] | 770 | char buf[100];
|
---|
[576] | 771 | if (mUseImportanceSampling)
|
---|
[1145] | 772 | {
|
---|
| 773 | sprintf(buf, "snap/i-%02d-", mPass);
|
---|
| 774 |
|
---|
[1151] | 775 | renderer->SetSnapPrefix(buf);
|
---|
[1145] | 776 | }
|
---|
[576] | 777 | else
|
---|
[1145] | 778 | {
|
---|
| 779 | sprintf(buf, "snap/r-%02d-", mPass);
|
---|
| 780 |
|
---|
[1151] | 781 | renderer->SetSnapPrefix(buf);
|
---|
[1145] | 782 | }
|
---|
| 783 |
|
---|
[1151] | 784 | renderer->SetSnapErrorFrames(true);
|
---|
[576] | 785 | }
|
---|
| 786 |
|
---|
[492] | 787 | ComputeRenderError();
|
---|
| 788 |
|
---|
| 789 | // epxort rays before adding them to the tree -> some of them can be deleted
|
---|
| 790 |
|
---|
| 791 | if (mExportRays) {
|
---|
| 792 | char filename[64];
|
---|
| 793 | if (mUseImportanceSampling)
|
---|
| 794 | sprintf(filename, "rss-rays-i%04d.x3d", rssPass);
|
---|
| 795 | else
|
---|
| 796 | sprintf(filename, "rss-rays-%04d.x3d", rssPass);
|
---|
| 797 |
|
---|
[1112] | 798 |
|
---|
| 799 |
|
---|
[1694] | 800 | if (useRayBuffer)
|
---|
| 801 | vssRays.SelectRays(mExportNumRays, rayBuffer[mPass], true);
|
---|
[1112] | 802 |
|
---|
[492] | 803 | ExportRays(filename, vssRays, mExportNumRays);
|
---|
[1112] | 804 |
|
---|
[492] | 805 | // now export all contributing rays
|
---|
| 806 | VssRayContainer contributingRays;
|
---|
| 807 | vssRays.GetContributingRays(contributingRays, mPass);
|
---|
[508] | 808 | mStats<<"#NUM_CONTRIBUTING_RAYS\n"<<(int)contributingRays.size()<<endl;
|
---|
[492] | 809 | sprintf(filename, "rss-crays-%04d.x3d", rssPass);
|
---|
| 810 | ExportRays(filename, contributingRays, mExportNumRays);
|
---|
[1112] | 811 |
|
---|
[492] | 812 | }
|
---|
| 813 |
|
---|
| 814 |
|
---|
[467] | 815 | // add rays to the tree after the viewcells have been cast to have their contributions
|
---|
| 816 | // already when adding into the tree
|
---|
| 817 | // do not add those rays which have too low or no contribution....
|
---|
[1715] | 818 |
|
---|
| 819 | #if USE_RSS_TREE
|
---|
[467] | 820 | if (mUseImportanceSampling) {
|
---|
[1715] | 821 | Debug<<"Adding rays...\n"<<flush;
|
---|
[563] | 822 | mRssTree->AddRays(vssRays);
|
---|
[1715] | 823 | Debug<<"done.\n"<<flush;
|
---|
[467] | 824 | if (mUpdateSubdivision) {
|
---|
[492] | 825 | int updatePasses = 1;
|
---|
| 826 | if (mPass % updatePasses == 0) {
|
---|
[1715] | 827 | Debug<<"Updating rss tree...\n"<<flush;
|
---|
[563] | 828 | int subdivided = mRssTree->UpdateSubdivision();
|
---|
[1715] | 829 | Debug<<"done.\n"<<flush;
|
---|
[492] | 830 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
[563] | 831 | cout<<"#total leaves = "<<mRssTree->stat.Leaves()<<endl;
|
---|
[492] | 832 | }
|
---|
[467] | 833 | }
|
---|
[447] | 834 | }
|
---|
[1715] | 835 | #endif
|
---|
[467] | 836 |
|
---|
[464] | 837 | if (mExportPvs) {
|
---|
[447] | 838 | char filename[64];
|
---|
[467] | 839 | sprintf(filename, "rss-pvs-%04d.x3d", rssPass);
|
---|
[563] | 840 | ExportPvs(filename, mRssTree);
|
---|
[447] | 841 | }
|
---|
[492] | 842 |
|
---|
[563] | 843 |
|
---|
[1199] | 844 | if (!mUseImportanceSampling)
|
---|
[492] | 845 | CLEAR_CONTAINER(vssRays);
|
---|
[563] | 846 | // otherwise the rays get deleted by the rss tree update according to RssTree.maxRays ....
|
---|
[492] | 847 |
|
---|
[467] | 848 | if (totalSamples >= mRssSamples + mInitialSamples)
|
---|
[447] | 849 | break;
|
---|
| 850 |
|
---|
[1613] | 851 |
|
---|
[467] | 852 | rssPass++;
|
---|
| 853 | mPass++;
|
---|
[563] | 854 | mRssTree->SetPass(mPass);
|
---|
[1613] | 855 |
|
---|
| 856 |
|
---|
[447] | 857 | }
|
---|
| 858 |
|
---|
[464] | 859 | if (mUseViewcells) {
|
---|
[466] | 860 |
|
---|
[1199] | 861 | if(0)
|
---|
[574] | 862 | {
|
---|
[1199] | 863 | VssRayContainer selectedRays;
|
---|
| 864 | int desired = mViewCellsManager->GetVisualizationSamples();
|
---|
| 865 |
|
---|
| 866 | mVssRays.SelectRays(desired, selectedRays);
|
---|
| 867 |
|
---|
| 868 | mViewCellsManager->Visualize(mObjects, selectedRays);
|
---|
[574] | 869 | }
|
---|
[556] | 870 |
|
---|
[1199] | 871 | // view cells after sampling
|
---|
| 872 | mViewCellsManager->PrintStatistics(Debug);
|
---|
| 873 |
|
---|
| 874 | //-- render simulation after merge
|
---|
| 875 | cout << "\nevaluating bsp view cells render time after sampling ... ";
|
---|
| 876 |
|
---|
| 877 | mRenderSimulator->RenderScene();
|
---|
| 878 | SimulationStatistics ss;
|
---|
| 879 | mRenderSimulator->GetStatistics(ss);
|
---|
| 880 |
|
---|
| 881 | cout << " finished" << endl;
|
---|
| 882 | cout << ss << endl;
|
---|
| 883 | Debug << ss << endl;
|
---|
| 884 |
|
---|
[466] | 885 | }
|
---|
[1112] | 886 |
|
---|
| 887 |
|
---|
[1694] | 888 | if (useRayBuffer&& mExportRays && mUseImportanceSampling) {
|
---|
[1112] | 889 | char filename[64];
|
---|
| 890 | sprintf(filename, "rss-rays-i.x3d");
|
---|
| 891 |
|
---|
| 892 | rayBuffer.resize(mPass);
|
---|
| 893 | ExportRayAnimation(filename, rayBuffer);
|
---|
| 894 | }
|
---|
| 895 |
|
---|
[1581] | 896 |
|
---|
| 897 | // do not delete rss tree now - can be used for visualization..
|
---|
| 898 | #if 0
|
---|
[563] | 899 | Debug<<"Deleting RSS tree...\n";
|
---|
| 900 | delete mRssTree;
|
---|
| 901 | Debug<<"Done.\n";
|
---|
[1581] | 902 | #endif
|
---|
[466] | 903 |
|
---|
[1199] | 904 | //mViewCellsManager->ExportViewCells("visibility.xml",
|
---|
[871] | 905 | // true);
|
---|
[447] | 906 |
|
---|
[871] | 907 |
|
---|
[447] | 908 | return true;
|
---|
| 909 | }
|
---|
| 910 |
|
---|
[871] | 911 | }
|
---|