[372] | 1 | #include "SceneGraph.h"
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| 2 | #include "KdTree.h"
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| 3 | #include "VssPreprocessor.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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[376] | 9 | #include "VssRay.h"
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[382] | 10 | #include "VssTree.h"
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[439] | 11 | #include "ViewCellsManager.h"
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[452] | 12 | #include "RenderSimulator.h"
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[531] | 13 | #include "Beam.h"
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| 14 | #include "GlRenderer.h"
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[1221] | 15 | #include "Intersectable.h"
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[1251] | 16 | #ifdef GTP_INTERNAL
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| 17 | #include "ArchModeler2MLRT.hxx"
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| 18 | #endif
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[372] | 19 |
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[863] | 20 | namespace GtpVisibilityPreprocessor {
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[860] | 21 |
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[427] | 22 | bool use2dSampling = false;
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[534] | 23 | bool useViewspacePlane = false;
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[427] | 24 |
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[372] | 25 | VssPreprocessor::VssPreprocessor():
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[1002] | 26 | mVssRays(),
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| 27 | mViewSpaceBox(NULL)
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[372] | 28 | {
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| 29 | // this should increase coherence of the samples
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[1004] | 30 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.samplesPerPass", mSamplesPerPass);
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| 31 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.initialSamples", mInitialSamples);
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| 32 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.vssSamples", mVssSamples);
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| 33 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.vssSamplesPerPass", mVssSamplesPerPass);
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| 34 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.useImportanceSampling", mUseImportanceSampling);
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[574] | 35 |
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[1004] | 36 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.loadInitialSamples", mLoadInitialSamples);
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| 37 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.storeInitialSamples", mStoreInitialSamples);
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| 38 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.useViewSpaceBox", mUseViewSpaceBox);
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| 39 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.testBeamSampling", mTestBeamSampling);
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| 40 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.enlargeViewSpace", mEnlargeViewSpace);
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| 41 | Environment::GetSingleton()->GetBoolValue("Preprocessor.detectEmptyViewSpace", mDetectEmptyViewSpace);
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[694] | 42 |
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[508] | 43 | useViewspacePlane = mUseViewSpaceBox; //hack
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[490] | 44 |
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[675] | 45 |
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| 46 | Debug << "*********** vss preprocessor options **************" << endl;
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| 47 | Debug << "use view space box=" << mUseViewSpaceBox << endl;
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| 48 | Debug << "enlarge view space=" << mEnlargeViewSpace << endl;
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| 49 | Debug << "*********** end vss preprocessor options **************" << endl;
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| 50 |
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[372] | 51 | mStats.open("stats.log");
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| 52 | }
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| 53 |
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[685] | 54 |
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[372] | 55 | VssPreprocessor::~VssPreprocessor()
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| 56 | {
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[674] | 57 | CLEAR_CONTAINER(mVssRays);
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| 58 | DEL_PTR(mViewSpaceBox);
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[372] | 59 | }
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| 60 |
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[685] | 61 |
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[1221] | 62 |
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[574] | 63 |
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| 64 |
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[1221] | 65 |
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[376] | 66 | Vector3
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[382] | 67 | VssPreprocessor::GetViewpoint(AxisAlignedBox3 *viewSpaceBox)
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[372] | 68 | {
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[434] | 69 | AxisAlignedBox3 box;
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[468] | 70 |
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[434] | 71 | if (viewSpaceBox)
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| 72 | box =*viewSpaceBox;
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[468] | 73 | else
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[434] | 74 | box = mKdTree->GetBox();
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[468] | 75 |
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[434] | 76 | // shrink the box in the y direction
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| 77 | return box.GetRandomPoint();
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[372] | 78 | }
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| 79 |
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[376] | 80 | Vector3
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[427] | 81 | VssPreprocessor::GetDirection(const Vector3 &viewpoint,
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[434] | 82 | AxisAlignedBox3 *viewSpaceBox
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| 83 | )
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[372] | 84 | {
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[434] | 85 | Vector3 point;
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[600] | 86 | if (!use2dSampling)
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| 87 | {
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| 88 | if (0)
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| 89 | {
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| 90 | Vector3 normal;
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| 91 | int i = Random((int)mObjects.size());
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| 92 | Intersectable *object = mObjects[i];
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| 93 | object->GetRandomSurfacePoint(point, normal);
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| 94 | }
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| 95 | else
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| 96 | point = mKdTree->GetBox().GetRandomPoint();
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[534] | 97 | // point = viewpoint + UniformRandomVector();
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[600] | 98 | }
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| 99 | else
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| 100 | {
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| 101 | AxisAlignedBox3 box;
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[534] | 102 |
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[600] | 103 | if (viewSpaceBox)
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| 104 | box =*viewSpaceBox;
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| 105 | else
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| 106 | box = mKdTree->GetBox();
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[468] | 107 |
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[600] | 108 | point = box.GetRandomPoint();
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| 109 | point.y = viewpoint.y;
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[434] | 110 | }
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[468] | 111 |
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[434] | 112 | return point - viewpoint;
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[372] | 113 | }
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| 114 |
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[401] | 115 | int
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[427] | 116 | VssPreprocessor::GenerateImportanceRays(VssTree *vssTree,
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[434] | 117 | const int desiredSamples,
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| 118 | SimpleRayContainer &rays
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| 119 | )
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[401] | 120 | {
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[434] | 121 | int num;
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| 122 | if (0) {
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| 123 | float minRayContribution;
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| 124 | float maxRayContribution;
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| 125 | float avgRayContribution;
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[468] | 126 |
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[434] | 127 | vssTree->GetRayContributionStatistics(minRayContribution,
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| 128 | maxRayContribution,
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| 129 | avgRayContribution);
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[468] | 130 |
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[434] | 131 | cout<<
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| 132 | "#MIN_RAY_CONTRIB\n"<<minRayContribution<<endl<<
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| 133 | "#MAX_RAY_CONTRIB\n"<<maxRayContribution<<endl<<
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| 134 | "#AVG_RAY_CONTRIB\n"<<avgRayContribution<<endl;
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[468] | 135 |
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[434] | 136 | float p = desiredSamples/(float)(avgRayContribution*vssTree->stat.Leaves());
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| 137 | num = vssTree->GenerateRays(p, rays);
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| 138 | } else {
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[534] | 139 | int leaves = vssTree->stat.Leaves();
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[434] | 140 | num = vssTree->GenerateRays(desiredSamples, leaves, rays);
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| 141 | }
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[468] | 142 |
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[434] | 143 | cout<<"Generated "<<num<<" rays."<<endl;
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[468] | 144 |
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[434] | 145 | return num;
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[427] | 146 | }
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[376] | 147 |
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| 148 |
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[427] | 149 | bool
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| 150 | VssPreprocessor::ExportRays(const char *filename,
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[434] | 151 | const VssRayContainer &vssRays,
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| 152 | const int number
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| 153 | )
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[427] | 154 | {
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[434] | 155 | cout<<"Exporting vss rays..."<<endl<<flush;
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[468] | 156 |
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[434] | 157 | Exporter *exporter = NULL;
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| 158 | exporter = Exporter::GetExporter(filename);
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[1074] | 159 | exporter->SetWireframe();
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| 160 | exporter->ExportKdTree(*mKdTree);
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[434] | 161 | exporter->SetFilled();
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[1328] | 162 | exporter->ExportScene(mSceneGraph->GetRoot());
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[434] | 163 | exporter->SetWireframe();
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[427] | 164 |
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[434] | 165 | if (mViewSpaceBox) {
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[438] | 166 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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[434] | 167 | exporter->ExportBox(*mViewSpaceBox);
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| 168 | exporter->ResetForcedMaterial();
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| 169 | }
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[468] | 170 |
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[534] | 171 | VssRayContainer rays;
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| 172 | vssRays.SelectRays(number, rays);
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| 173 |
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[685] | 174 | //exporter->ExportRays(rays, RgbColor(1, 0, 0));
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[468] | 175 |
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[434] | 176 | delete exporter;
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[401] | 177 |
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[434] | 178 | cout<<"done."<<endl<<flush;
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[427] | 179 |
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[434] | 180 | return true;
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[401] | 181 | }
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| 182 |
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| 183 |
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[372] | 184 | bool
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[434] | 185 | VssPreprocessor::ExportVssTree(char *filename,
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[438] | 186 | VssTree *tree,
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| 187 | const Vector3 &dir
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| 188 | )
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[434] | 189 | {
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| 190 | Exporter *exporter = Exporter::GetExporter(filename);
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| 191 | exporter->SetFilled();
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[1328] | 192 | exporter->ExportScene(mSceneGraph->GetRoot());
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[438] | 193 | // exporter->SetWireframe();
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| 194 | bool result = exporter->ExportVssTree2( *tree, dir );
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[434] | 195 | delete exporter;
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| 196 | return result;
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| 197 | }
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| 198 |
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| 199 | bool
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[427] | 200 | VssPreprocessor::ExportVssTreeLeaf(char *filename,
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[434] | 201 | VssTree *tree,
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| 202 | VssTreeLeaf *leaf)
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[427] | 203 | {
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[434] | 204 | Exporter *exporter = NULL;
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| 205 | exporter = Exporter::GetExporter(filename);
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| 206 | exporter->SetWireframe();
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| 207 | exporter->ExportKdTree(*mKdTree);
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[468] | 208 |
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[434] | 209 | if (mViewSpaceBox) {
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| 210 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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| 211 | exporter->ExportBox(*mViewSpaceBox);
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[427] | 212 | exporter->ResetForcedMaterial();
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[434] | 213 | }
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[468] | 214 |
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[434] | 215 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 216 | exporter->ExportBox(tree->GetBBox(leaf));
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| 217 | exporter->ResetForcedMaterial();
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[468] | 218 |
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[434] | 219 | VssRayContainer rays[4];
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| 220 | for (int i=0; i < leaf->rays.size(); i++) {
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| 221 | int k = leaf->rays[i].GetRayClass();
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| 222 | rays[k].push_back(leaf->rays[i].mRay);
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| 223 | }
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[468] | 224 |
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[434] | 225 | // SOURCE RAY
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| 226 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
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| 227 | // TERMINATION RAY
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| 228 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
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| 229 | // PASSING_RAY
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| 230 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
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| 231 | // CONTAINED_RAY
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| 232 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
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[427] | 233 |
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[434] | 234 | delete exporter;
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| 235 | return true;
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[427] | 236 | }
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| 237 |
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| 238 | void
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| 239 | VssPreprocessor::ExportVssTreeLeaves(VssTree *tree, const int number)
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| 240 | {
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[434] | 241 | vector<VssTreeLeaf *> leaves;
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| 242 | tree->CollectLeaves(leaves);
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[427] | 243 |
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[434] | 244 | int num = 0;
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| 245 | int i;
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| 246 | float p = number / (float)leaves.size();
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| 247 | for (i=0; i < leaves.size(); i++) {
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| 248 | if (RandomValue(0,1) < p) {
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| 249 | char filename[64];
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| 250 | sprintf(filename, "vss-leaf-%04d.x3d", num);
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| 251 | ExportVssTreeLeaf(filename, tree, leaves[i]);
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| 252 | num++;
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[427] | 253 | }
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[434] | 254 | if (num >= number)
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| 255 | break;
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| 256 | }
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[427] | 257 | }
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| 258 |
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[685] | 259 |
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[535] | 260 | void VssPreprocessor::TestBeamCasting(VssTree *tree,
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| 261 | ViewCellsManager *vm,
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| 262 | const ObjectContainer &objects)
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[530] | 263 | {
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[540] | 264 | //debuggerWidget = new GlDebuggerWidget(renderer);
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| 265 | // renderer->resize(640, 480);
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| 266 | //debuggerWidget->resize(640, 480);
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| 267 |
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[531] | 268 | vector<VssTreeLeaf *> leaves;
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| 269 | tree->CollectLeaves(leaves);
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[530] | 270 |
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[535] | 271 | Exporter *exporter = Exporter::GetExporter("shafts.x3d");
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| 272 |
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| 273 | exporter->SetWireframe();
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[540] | 274 | exporter->ExportGeometry(objects);
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[535] | 275 | exporter->SetFilled();
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| 276 | //Randomize();
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[1145] | 277 | // §§matt
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| 278 | // debuggerWidget = new GlDebuggerWidget(renderer);
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[540] | 279 |
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| 280 | /*debuggerWidget->mBeam = beam;
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| 281 | debuggerWidget->mSourceObject = sourceObj;
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| 282 | debuggerWidget->mSamples = 10000;
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| 283 |
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| 284 | Debug << "showing window" << endl;
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[1145] | 285 | debuggerWidget->show();
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[540] | 286 |
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[1145] | 287 | renderer->makeCurrent();*/
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[540] | 288 |
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| 289 | for (int i = 0; i < 10; ++ i)
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[530] | 290 | {
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[540] | 291 | Beam beam;
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| 292 | Intersectable *sourceObj = mObjects[5];
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| 293 |
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[531] | 294 | const int index = (int)RandomValue(0, (Real)((int)leaves.size() - 1));
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| 295 | VssTreeLeaf *leaf = leaves[index];
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[530] | 296 |
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[535] | 297 | AxisAlignedBox3 dirBox = tree->GetDirBBox(leaf);
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[531] | 298 | AxisAlignedBox3 box = tree->GetBBox(leaf);
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[532] | 299 |
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[535] | 300 | beam.Construct(box, dirBox);
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[532] | 301 |
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| 302 | // collect kd leaves and view cells
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| 303 | mKdTree->CastBeam(beam);
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| 304 | vm->CastBeam(beam);
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| 305 |
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[577] | 306 | Debug << "found " << (int)beam.mViewCells.size() << " view cells and "
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| 307 | << (int)beam.mKdNodes.size() << " kd nodes" << endl;
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[532] | 308 |
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[530] | 309 | BeamSampleStatistics stats;
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[1145] | 310 | // §§matt
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| 311 | /* renderer->SampleBeamContributions(sourceObj,
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[589] | 312 | beam,
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| 313 | 200000,
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[531] | 314 | stats);
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[530] | 315 |
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[540] | 316 | char s[64]; sprintf(s, "shaft%04d.png", i);
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| 317 |
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| 318 | QImage image = renderer->toImage();
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| 319 | image.save(s, "PNG");
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[532] | 320 | Debug << "beam statistics: " << stats << endl << endl;
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[1145] | 321 | */
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[540] | 322 | if (1)
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| 323 | {
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| 324 | AxisAlignedBox3 sbox = mSceneGraph->GetBox();
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| 325 | Vector3 bmin = sbox.Min() - 150.0f;
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| 326 | Vector3 bmax = sbox.Max() + 150.0f;
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| 327 | AxisAlignedBox3 vbox(bmin, bmax);
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[535] | 328 |
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[540] | 329 | exporter->ExportBeam(beam, vbox);
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| 330 | }
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[535] | 331 |
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[540] | 332 | bool exportViewCells = false;
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[535] | 333 |
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| 334 | if (exportViewCells)
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| 335 | {
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| 336 | ViewCellContainer::const_iterator it, it_end = beam.mViewCells.end();
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| 337 |
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| 338 | for (it = beam.mViewCells.begin(); it != beam.mViewCells.end(); ++ it)
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| 339 | {
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| 340 | BspNodeGeometry geom;
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| 341 | AxisAlignedBox3 vbox;
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| 342 | vbox.Initialize();
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[538] | 343 | vbox.Include((*it)->GetMesh());
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| 344 |
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| 345 | exporter->SetWireframe();
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[535] | 346 | exporter->ExportBox(vbox);
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[538] | 347 | exporter->SetFilled();
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| 348 | exporter->ExportViewCell(*it);
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[535] | 349 | }
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[538] | 350 |
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| 351 | /*vector<KdNode *>::const_iterator it, it_end = beam.mKdNodes.end();
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| 352 |
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| 353 | for (it = beam.mKdNodes.begin(); it != beam.mKdNodes.end(); ++ it)
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| 354 | {
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| 355 | exporter->ExportBox(mKdTree->GetBox((*it)));
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| 356 | }*/
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[535] | 357 | }
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[530] | 358 | }
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[540] | 359 | /*while (1)
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| 360 | { debuggerWidget->repaint();
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| 361 | };*/
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[535] | 362 | delete exporter;
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[530] | 363 | }
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| 364 |
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[540] | 365 |
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[434] | 366 | float
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| 367 | VssPreprocessor::GetAvgPvsSize(VssTree *tree,
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| 368 | const vector<AxisAlignedBox3> &viewcells
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| 369 | )
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| 370 | {
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| 371 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
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| 372 |
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| 373 | int sum = 0;
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| 374 | for (it = viewcells.begin(); it != it_end; ++ it)
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| 375 | sum += tree->GetPvsSize(*it);
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[468] | 376 |
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[434] | 377 | return sum/(float)viewcells.size();
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| 378 | }
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| 379 |
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[427] | 380 | bool
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[372] | 381 | VssPreprocessor::ComputeVisibility()
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| 382 | {
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[579] | 383 | Debug << "type: vss" << endl;
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[468] | 384 |
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[372] | 385 | long startTime = GetTime();
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[468] | 386 |
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[372] | 387 | int totalSamples = 0;
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| 388 |
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| 389 |
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[1002] | 390 | AxisAlignedBox3 box(mKdTree->GetBox());
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[534] | 391 |
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[434] | 392 | if (!useViewspacePlane) {
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[446] | 393 | float size = 0.05f;
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[434] | 394 | float s = 0.5f - size;
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[1002] | 395 | float olds = Magnitude(box.Size());
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| 396 | box.Enlarge(box.Size()*Vector3(-s));
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[434] | 397 | Vector3 translation = Vector3(-olds*0.1f, 0, 0);
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[1002] | 398 | box.SetMin(box.Min() + translation);
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| 399 | box.SetMax(box.Max() + translation);
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[434] | 400 | } else {
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[468] | 401 |
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[434] | 402 | // sample city like heights
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[1002] | 403 | box.SetMin(1, box.Min(1) + box.Size(1)*0.2f);
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| 404 | box.SetMax(1, box.Min(1) + box.Size(1)*0.3f);
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[434] | 405 | }
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[427] | 406 |
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[434] | 407 | if (use2dSampling)
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[1002] | 408 | box.SetMax(1, box.Min(1));
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[468] | 409 |
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[1221] | 410 | cout << "use view space box=" << mUseViewSpaceBox << endl;
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[579] | 411 |
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[1076] | 412 |
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[501] | 413 | if (mUseViewSpaceBox)
|
---|
[487] | 414 | {
|
---|
[1221] | 415 | //mViewSpaceBox = ConstructViewSpaceBox();
|
---|
| 416 |
|
---|
[674] | 417 | if (!mEnlargeViewSpace)
|
---|
[654] | 418 | {
|
---|
[1002] | 419 | mViewSpaceBox = new AxisAlignedBox3(box);
|
---|
[654] | 420 | }
|
---|
[598] | 421 | else
|
---|
| 422 | {
|
---|
[750] | 423 | mViewSpaceBox = new AxisAlignedBox3(mKdTree->GetBox());
|
---|
[677] | 424 |
|
---|
[1052] | 425 | if (0)
|
---|
[750] | 426 | {
|
---|
[1052] | 427 | // HACK: enlarge in y directon
|
---|
[750] | 428 | Vector3 size = mViewSpaceBox->Size();
|
---|
[1052] | 429 |
|
---|
| 430 | size[1] *= 1.25;
|
---|
| 431 | Vector3 enlarge(size[0] * 0.25f, size[1] * 0.0f, size[2] * 0.25f);
|
---|
| 432 | //Vector3 enlarge(size[0] * 4.0f, 0.0f, 0.0f);
|
---|
[598] | 433 |
|
---|
[1052] | 434 | mViewSpaceBox->Enlarge(enlarge);
|
---|
[750] | 435 | mViewSpaceBox->SetMax(mViewSpaceBox->Max() + enlarge);
|
---|
| 436 | }
|
---|
| 437 | else
|
---|
| 438 | {
|
---|
[1052] | 439 | AxisAlignedBox3 tbox(*mViewSpaceBox);
|
---|
| 440 |
|
---|
| 441 | Vector3 size = mViewSpaceBox->Size();
|
---|
[1264] | 442 | tbox.SetMax(0, mViewSpaceBox->Max(0) + size[0] * 0.5f);
|
---|
[1052] | 443 | tbox.SetMin(0, mViewSpaceBox->Min(0) + size[0]);
|
---|
| 444 | *mViewSpaceBox = tbox;
|
---|
| 445 |
|
---|
[750] | 446 | // $$ JB temporary
|
---|
[1052] | 447 | /*AxisAlignedBox3 tempbox = *mViewSpaceBox;
|
---|
[750] | 448 |
|
---|
[1002] | 449 | float s = tempbox.Size(0);
|
---|
[750] | 450 |
|
---|
[1002] | 451 | tempbox.Scale(0.8f);
|
---|
| 452 | tempbox.SetMax(0, box.Max(0) + s*0.8f);
|
---|
| 453 | tempbox.SetMin(0, box.Min(0) + s*0.8f);
|
---|
[1052] | 454 | *mViewSpaceBox = tempbox;*/
|
---|
[750] | 455 | }
|
---|
[598] | 456 | }
|
---|
| 457 | //Debug << "view space box: " << *mViewSpaceBox << endl;
|
---|
[487] | 458 | }
|
---|
[434] | 459 | else
|
---|
[487] | 460 | {
|
---|
[579] | 461 | mViewSpaceBox = NULL;
|
---|
[487] | 462 | }
|
---|
[534] | 463 |
|
---|
[577] | 464 | AxisAlignedBox3 vbox = mViewSpaceBox ? *mViewSpaceBox : mKdTree->GetBox();
|
---|
| 465 |
|
---|
[590] | 466 | mSceneGraph->CollectObjects(&mObjects);
|
---|
| 467 |
|
---|
[1264] | 468 | //-- load view cells from file or reconstruct them
|
---|
[577] | 469 | if (!mLoadViewCells)
|
---|
[574] | 470 | {
|
---|
[577] | 471 | mViewCellsManager->SetViewSpaceBox(vbox);
|
---|
[574] | 472 | // construct view cells using it's own set of samples
|
---|
| 473 | mViewCellsManager->Construct(this);
|
---|
[518] | 474 |
|
---|
[574] | 475 | //-- several visualizations and statistics
|
---|
[587] | 476 | Debug << "view cells construction finished: " << endl;
|
---|
[574] | 477 | mViewCellsManager->PrintStatistics(Debug);
|
---|
| 478 | }
|
---|
[1264] | 479 | #if 1 // test successful view cells loading by exporting them again
|
---|
| 480 | else
|
---|
[651] | 481 | {
|
---|
[590] | 482 | VssRayContainer dummies;
|
---|
| 483 | mViewCellsManager->Visualize(mObjects, dummies);
|
---|
[1264] | 484 | mViewCellsManager->ExportViewCells("test.xml.zip", mViewCellsManager->GetExportPvs(), mObjects);
|
---|
[590] | 485 | }
|
---|
[1264] | 486 | #endif
|
---|
[1311] | 487 | VssTree *vssTree = NULL;
|
---|
[468] | 488 |
|
---|
[490] | 489 | long initialTime = GetTime();
|
---|
[468] | 490 |
|
---|
[490] | 491 | if (mLoadInitialSamples)
|
---|
| 492 | {
|
---|
| 493 | cout << "Loading samples from file ... ";
|
---|
| 494 | LoadSamples(mVssRays, mObjects);
|
---|
| 495 | cout << "finished\n" << endl;
|
---|
| 496 | totalSamples = (int)mVssRays.size();
|
---|
| 497 | }
|
---|
| 498 | else
|
---|
| 499 | {
|
---|
[534] | 500 | while (totalSamples < mInitialSamples) {
|
---|
[490] | 501 | int passContributingSamples = 0;
|
---|
| 502 | int passSampleContributions = 0;
|
---|
| 503 | int passSamples = 0;
|
---|
[468] | 504 |
|
---|
[490] | 505 | int index = 0;
|
---|
[468] | 506 |
|
---|
[490] | 507 | int sampleContributions;
|
---|
[468] | 508 |
|
---|
[490] | 509 | int s = Min(mSamplesPerPass, mInitialSamples);
|
---|
| 510 | for (int k=0; k < s; k++) {
|
---|
| 511 | // changed by matt
|
---|
| 512 | Vector3 viewpoint;
|
---|
[534] | 513 | // viewpoint = GetViewpoint(mViewSpaceBox);
|
---|
[490] | 514 | mViewCellsManager->GetViewPoint(viewpoint);
|
---|
| 515 | Vector3 direction = GetDirection(viewpoint, mViewSpaceBox);
|
---|
[534] | 516 |
|
---|
[1251] | 517 | sampleContributions = CastRay(viewpoint, direction, 1, mVssRays, vbox);
|
---|
[468] | 518 |
|
---|
[490] | 519 | if (sampleContributions) {
|
---|
| 520 | passContributingSamples ++;
|
---|
| 521 | passSampleContributions += sampleContributions;
|
---|
| 522 | }
|
---|
| 523 | passSamples++;
|
---|
| 524 | totalSamples++;
|
---|
| 525 | }
|
---|
[468] | 526 |
|
---|
[490] | 527 | mPass++;
|
---|
| 528 | int pvsSize = 0;
|
---|
| 529 | float avgRayContrib = (passContributingSamples > 0) ?
|
---|
| 530 | passSampleContributions/(float)passContributingSamples : 0;
|
---|
[468] | 531 |
|
---|
[490] | 532 | cout << "#Pass " << mPass << " : t = " << TimeDiff(startTime, GetTime())*1e-3 << "s" << endl;
|
---|
| 533 | cout << "#TotalSamples=" << totalSamples/1000
|
---|
[651] | 534 | << "#SampleContributions=" << passSampleContributions << " ("
|
---|
[490] | 535 | << 100*passContributingSamples/(float)passSamples<<"%)" << " avgPVS="
|
---|
| 536 | << pvsSize/(float)mObjects.size() << endl
|
---|
| 537 | << "avg ray contrib=" << avgRayContrib << endl;
|
---|
[468] | 538 |
|
---|
[490] | 539 | mStats <<
|
---|
| 540 | "#Pass\n" <<mPass<<endl<<
|
---|
| 541 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3 << endl<<
|
---|
| 542 | "#TotalSamples\n" << totalSamples<< endl<<
|
---|
| 543 | "#SampleContributions\n" << passSampleContributions << endl <<
|
---|
| 544 | "#PContributingSamples\n"<<100*passContributingSamples/(float)passSamples<<endl <<
|
---|
| 545 | "#AvgPVS\n"<< pvsSize/(float)mObjects.size() << endl <<
|
---|
| 546 | "#AvgRayContrib\n" << avgRayContrib << endl;
|
---|
| 547 | }
|
---|
| 548 |
|
---|
| 549 | cout << "#totalPvsSize=" << mKdTree->CollectLeafPvs() << endl;
|
---|
[534] | 550 |
|
---|
| 551 |
|
---|
| 552 |
|
---|
[490] | 553 | }
|
---|
[564] | 554 |
|
---|
| 555 |
|
---|
[490] | 556 | cout << "#totalRayStackSize=" << (int)mVssRays.size() << endl << flush;
|
---|
| 557 | Debug << (int)mVssRays.size() << " rays generated in "
|
---|
| 558 | << TimeDiff(initialTime, GetTime()) * 1e-3 << " seconds" << endl;
|
---|
[401] | 559 |
|
---|
[490] | 560 | if (mStoreInitialSamples)
|
---|
| 561 | {
|
---|
| 562 | cout << "Writing " << (int)mVssRays.size() << " samples to file ... ";
|
---|
[508] | 563 | ExportSamples(mVssRays);
|
---|
[490] | 564 | cout << "finished\n" << endl;
|
---|
[491] | 565 |
|
---|
| 566 | /*VssRayContainer dummyRays;
|
---|
| 567 | LoadSamples(dummyRays, mObjects);
|
---|
| 568 | Debug << "rays " << (int)mVssRays.size() << " " << dummyRays.size() << endl;
|
---|
| 569 |
|
---|
| 570 | for (int i = 0; i < (int)mVssRays.size(); ++ i)
|
---|
| 571 | {
|
---|
| 572 | Debug << mVssRays[i]->GetOrigin() << " " << mVssRays[i]->GetTermination() << " " << mVssRays[i]->mOriginObject << " " << mVssRays[i]->mTerminationObject << endl;
|
---|
| 573 | Debug << dummyRays[i]->GetOrigin() << " " << dummyRays[i]->GetTermination() << " " << dummyRays[i]->mOriginObject << " " << dummyRays[i]->mTerminationObject << endl << endl;
|
---|
| 574 | }*/
|
---|
[434] | 575 | }
|
---|
[468] | 576 |
|
---|
[534] | 577 |
|
---|
[712] | 578 | //int numExportRays = 2000;
|
---|
| 579 | int numExportRays = 0;
|
---|
[372] | 580 |
|
---|
[434] | 581 | if (numExportRays) {
|
---|
| 582 | char filename[64];
|
---|
| 583 | sprintf(filename, "vss-rays-initial.x3d");
|
---|
| 584 | ExportRays(filename, mVssRays, numExportRays);
|
---|
| 585 | }
|
---|
[468] | 586 |
|
---|
[434] | 587 | vssTree = new VssTree;
|
---|
| 588 | // viewcells = Construct(mVssRays);
|
---|
[468] | 589 |
|
---|
[434] | 590 | vssTree->Construct(mVssRays, mViewSpaceBox);
|
---|
| 591 | cout<<"VssTree root PVS size = "<<vssTree->GetRootPvsSize()<<endl;
|
---|
[468] | 592 |
|
---|
[1074] | 593 | ExportRays("kdtree.x3d", mVssRays, 10);
|
---|
| 594 |
|
---|
[465] | 595 | if (0)
|
---|
| 596 | {
|
---|
| 597 | ExportVssTree("vss-tree-100.x3d", vssTree, Vector3(1,0,0));
|
---|
| 598 | ExportVssTree("vss-tree-001.x3d", vssTree, Vector3(0,0,1));
|
---|
| 599 | ExportVssTree("vss-tree-101.x3d", vssTree, Vector3(1,0,1));
|
---|
| 600 | ExportVssTree("vss-tree-101m.x3d", vssTree, Vector3(-1,0,-1));
|
---|
| 601 | ExportVssTreeLeaves(vssTree, 10);
|
---|
| 602 | }
|
---|
[430] | 603 |
|
---|
[434] | 604 | // viewcells->UpdatePVS(newVssRays);
|
---|
| 605 | // get viewcells as kd tree boxes
|
---|
| 606 | vector<AxisAlignedBox3> kdViewcells;
|
---|
| 607 | if (0) {
|
---|
| 608 | vector<KdLeaf *> leaves;
|
---|
| 609 | mKdTree->CollectLeaves(leaves);
|
---|
| 610 | vector<KdLeaf *>::const_iterator it;
|
---|
| 611 | int targetLeaves = 50;
|
---|
| 612 | float prob = targetLeaves/(float)leaves.size();
|
---|
| 613 | for (it = leaves.begin(); it != leaves.end(); ++it)
|
---|
| 614 | if (RandomValue(0.0f,1.0f) < prob)
|
---|
| 615 | kdViewcells.push_back(mKdTree->GetBox(*it));
|
---|
[468] | 616 |
|
---|
[434] | 617 | float avgPvs = GetAvgPvsSize(vssTree, kdViewcells);
|
---|
| 618 | cout<<"Initial average PVS size = "<<avgPvs<<endl;
|
---|
| 619 | }
|
---|
| 620 |
|
---|
[468] | 621 |
|
---|
[434] | 622 | int samples = 0;
|
---|
| 623 | int pass = 0;
|
---|
[448] | 624 |
|
---|
[535] | 625 |
|
---|
[448] | 626 | // cast view cell samples
|
---|
[557] | 627 | while (samples < mVssSamples)
|
---|
| 628 | {
|
---|
| 629 |
|
---|
[434] | 630 | int num = mVssSamplesPerPass;
|
---|
| 631 | SimpleRayContainer rays;
|
---|
| 632 | VssRayContainer vssRays;
|
---|
[468] | 633 |
|
---|
[434] | 634 | if (!mUseImportanceSampling) {
|
---|
| 635 | for (int j=0; j < num; j++) {
|
---|
[487] | 636 | // changed by matt
|
---|
| 637 | //Vector3 viewpoint = GetViewpoint(mViewSpaceBox);
|
---|
| 638 | Vector3 viewpoint;
|
---|
| 639 | mViewCellsManager->GetViewPoint(viewpoint);
|
---|
[434] | 640 | Vector3 direction = GetDirection(viewpoint, mViewSpaceBox);
|
---|
| 641 | rays.push_back(SimpleRay(viewpoint, direction));
|
---|
| 642 | }
|
---|
| 643 | } else {
|
---|
| 644 | num = GenerateImportanceRays(vssTree, num, rays);
|
---|
| 645 | }
|
---|
[468] | 646 |
|
---|
[434] | 647 | for (int i=0; i < rays.size(); i++)
|
---|
[1251] | 648 | CastRay(rays[i].mOrigin, rays[i].mDirection, 1, vssRays, vbox);
|
---|
[468] | 649 |
|
---|
[434] | 650 | vssTree->AddRays(vssRays);
|
---|
[468] | 651 |
|
---|
[434] | 652 | if (0) {
|
---|
| 653 | int subdivided = vssTree->UpdateSubdivision();
|
---|
| 654 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
| 655 | }
|
---|
[427] | 656 |
|
---|
[434] | 657 | float avgPvs = GetAvgPvsSize(vssTree, kdViewcells);
|
---|
| 658 | cout<<"Average PVS size = "<<avgPvs<<endl;
|
---|
[430] | 659 |
|
---|
[517] | 660 | /// compute view cell contribution of rays
|
---|
[574] | 661 | mViewCellsManager->ComputeSampleContributions(vssRays, true, false);
|
---|
[517] | 662 |
|
---|
[434] | 663 | if (numExportRays) {
|
---|
| 664 | char filename[64];
|
---|
| 665 | if (mUseImportanceSampling)
|
---|
| 666 | sprintf(filename, "vss-rays-i%04d.x3d", pass);
|
---|
| 667 | else
|
---|
| 668 | sprintf(filename, "vss-rays-%04d.x3d", pass);
|
---|
[468] | 669 |
|
---|
[434] | 670 | ExportRays(filename, vssRays, numExportRays);
|
---|
[401] | 671 | }
|
---|
[386] | 672 |
|
---|
[434] | 673 | samples+=num;
|
---|
| 674 | float pvs = vssTree->GetAvgPvsSize();
|
---|
| 675 | cout<<"*****************************\n";
|
---|
| 676 | cout<<samples<<" avgPVS ="<<pvs<<endl;
|
---|
| 677 | cout<<"VssTree root PVS size = "<<vssTree->GetRootPvsSize()<<endl;
|
---|
| 678 | cout<<"*****************************\n";
|
---|
[557] | 679 | // if (samples >= mVssSamples) break;
|
---|
| 680 | pass ++;
|
---|
[434] | 681 | }
|
---|
[448] | 682 |
|
---|
[574] | 683 | if (mTestBeamSampling && mUseGlRenderer)
|
---|
| 684 | {
|
---|
| 685 | TestBeamCasting(vssTree, mViewCellsManager, mObjects);
|
---|
[553] | 686 | }
|
---|
| 687 |
|
---|
[1221] | 688 | if (0) Debug << vssTree->stat << endl;
|
---|
[468] | 689 |
|
---|
[574] | 690 | if (0)
|
---|
| 691 | {
|
---|
| 692 | VssRayContainer viewCellRays;
|
---|
[1221] | 693 | // compute rays used for view cells construction
|
---|
[574] | 694 | const int numRays = mViewCellsManager->GetVisualizationSamples();
|
---|
| 695 | vssTree->CollectRays(viewCellRays, numRays);
|
---|
[540] | 696 | }
|
---|
[535] | 697 |
|
---|
[452] | 698 | //-- render simulation after merge
|
---|
[574] | 699 | cout << "\nevaluating bsp view cells render time after sampling ... ";
|
---|
[605] | 700 | Debug << "\nStatistics after sampling: " << endl;
|
---|
| 701 |
|
---|
[468] | 702 | mRenderSimulator->RenderScene();
|
---|
| 703 | SimulationStatistics ss;
|
---|
| 704 | mRenderSimulator->GetStatistics(ss);
|
---|
[474] | 705 |
|
---|
[452] | 706 | cout << " finished" << endl;
|
---|
| 707 | cout << ss << endl;
|
---|
| 708 | Debug << ss << endl;
|
---|
[468] | 709 |
|
---|
[434] | 710 | delete vssTree;
|
---|
[475] | 711 |
|
---|
[434] | 712 | return true;
|
---|
[466] | 713 | }
|
---|
[697] | 714 |
|
---|
[1281] | 715 | } |
---|