[1460] | 1 | #include "Environment.h"
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| 2 | #include "GvsPreprocessor.h"
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| 3 | #include "GlRenderer.h"
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[1473] | 4 | #include "VssRay.h"
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| 5 | #include "ViewCellsManager.h"
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[1486] | 6 | #include "Triangle3.h"
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[1489] | 7 | #include "IntersectableWrapper.h"
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[1500] | 8 | #include "Plane3.h"
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[1521] | 9 | #include "RayCaster.h"
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[1522] | 10 | #include "Exporter.h"
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[1545] | 11 | #include "SamplingStrategy.h"
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[1990] | 12 | #include "BvHierarchy.h"
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[2116] | 13 | #include "Polygon3.h"
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[2643] | 14 | #include "IntersectableWrapper.h"
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[1460] | 15 |
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[1473] | 16 |
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[2643] | 17 |
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[1460] | 18 | namespace GtpVisibilityPreprocessor
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| 19 | {
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| 20 |
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[2633] | 21 | #define GVS_DEBUG 0
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[2669] | 22 | #define NOT_ACCOUNTED_OBJECT 0
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| 23 | #define ACCOUNTED_OBJECT 2
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[1934] | 24 |
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[2705] | 25 |
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[2669] | 26 | static const float MIN_DIST = 0.001f;
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| 27 |
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| 28 | static ObjectContainer myobjects;
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| 29 |
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| 30 |
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| 31 | /** Visualization structure for the GVS algorithm.
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| 32 | */
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[1522] | 33 | struct VizStruct
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| 34 | {
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| 35 | Polygon3 *enlargedTriangle;
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| 36 | Triangle3 originalTriangle;
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| 37 | VssRay *ray;
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| 38 | };
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[1460] | 39 |
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[2669] | 40 | static vector<VizStruct> vizContainer;
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[2048] | 41 |
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[1990] | 42 |
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[1522] | 43 |
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[2648] | 44 |
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[1533] | 45 | GvsPreprocessor::GvsPreprocessor():
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[1545] | 46 | Preprocessor(),
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[1996] | 47 | mProcessedViewCells(0),
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[2625] | 48 | mCurrentViewCell(NULL),
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[2691] | 49 | mCurrentViewPoint(Vector3(0.0f, 0.0f, 0.0f)),
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| 50 | mOnlyRandomSampling(false)
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| 51 | //mOnlyRandomSampling(true)
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[1460] | 52 | {
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[1486] | 53 | Environment::GetSingleton()->GetIntValue("GvsPreprocessor.totalSamples", mTotalSamples);
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| 54 | Environment::GetSingleton()->GetIntValue("GvsPreprocessor.initialSamples", mInitialSamples);
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[2048] | 55 | Environment::GetSingleton()->GetIntValue("GvsPreprocessor.gvsSamplesPerPass", mGvsSamplesPerPass);
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[1996] | 56 | Environment::GetSingleton()->GetIntValue("GvsPreprocessor.minContribution", mMinContribution);
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[1486] | 57 | Environment::GetSingleton()->GetFloatValue("GvsPreprocessor.epsilon", mEps);
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[1500] | 58 | Environment::GetSingleton()->GetFloatValue("GvsPreprocessor.threshold", mThreshold);
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[1990] | 59 | Environment::GetSingleton()->GetBoolValue("GvsPreprocessor.perViewCell", mPerViewCell);
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[1996] | 60 | Environment::GetSingleton()->GetIntValue("GvsPreprocessor.maxViewCells", mMaxViewCells);
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[1473] | 61 |
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[2048] | 62 | Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluatePixelError", mEvaluatePixelError);
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| 63 |
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[2615] | 64 | Environment::GetSingleton()->GetBoolValue("ViewCells.useKdPvs", mUseKdPvs);
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| 65 |
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| 66 |
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[1934] | 67 | char gvsStatsLog[100];
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| 68 | Environment::GetSingleton()->GetStringValue("GvsPreprocessor.stats", gvsStatsLog);
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| 69 | mGvsStatsStream.open(gvsStatsLog);
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| 70 |
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[2677] | 71 | cout << "number of gvs samples per pass: " << mGvsSamplesPerPass << endl;
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| 72 | cout << "number of samples per pass: " << mSamplesPerPass << endl;
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[2691] | 73 | cout << "only random sampling: " << mOnlyRandomSampling << endl;
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[2677] | 74 |
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[1486] | 75 | Debug << "Gvs preprocessor options" << endl;
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| 76 | Debug << "number of total samples: " << mTotalSamples << endl;
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| 77 | Debug << "number of initial samples: " << mInitialSamples << endl;
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[1501] | 78 | Debug << "threshold: " << mThreshold << endl;
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[1934] | 79 | Debug << "epsilon: " << mEps << endl;
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| 80 | Debug << "stats: " << gvsStatsLog << endl;
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[1996] | 81 | Debug << "per view cell: " << mPerViewCell << endl;
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| 82 | Debug << "max view cells: " << mMaxViewCells << endl;
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| 83 | Debug << "min contribution: " << mMinContribution << endl;
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[1486] | 84 |
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[2691] | 85 | mDistribution = new ViewCellBasedDistribution(*this, NULL);
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[1934] | 86 |
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| 87 | mGvsStats.Reset();
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[2643] | 88 |
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[2695] | 89 | // hack: some generic statistical values that can be used
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[2648] | 90 | // by an application using the preprocessor
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[2691] | 91 | for (int i = 0; i < 2; ++ i)
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| 92 | mGenericStats[i] = 0;
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[1460] | 93 | }
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| 94 |
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[1473] | 95 |
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[1990] | 96 | GvsPreprocessor::~GvsPreprocessor()
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| 97 | {
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[2691] | 98 | delete mDistribution;
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[1996] | 99 | ClearRayQueue();
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| 100 | }
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| 101 |
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| 102 |
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| 103 | void GvsPreprocessor::ClearRayQueue()
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| 104 | {
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[1990] | 105 | // clean ray queue
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| 106 | while (!mRayQueue.empty())
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| 107 | {
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| 108 | // handle next ray
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| 109 | VssRay *ray = mRayQueue.top();
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| 110 | mRayQueue.pop();
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| 111 |
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[2695] | 112 | // note: deletion of the ray is handled by ray pool
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[1990] | 113 | }
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| 114 | }
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| 115 |
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| 116 |
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[2625] | 117 | ViewCell *GvsPreprocessor::NextViewCell()
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[1982] | 118 | {
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[1996] | 119 | if (mProcessedViewCells == (int)mViewCells.size())
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[2625] | 120 | return NULL; // no more view cells
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[1982] | 121 |
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[2625] | 122 | ViewCell *vc = mViewCells[mProcessedViewCells];
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[1982] | 123 |
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[2625] | 124 | if (!vc->GetMesh())
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| 125 | mViewCellsManager->CreateMesh(vc);
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[1990] | 126 |
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[2625] | 127 | mGvsStats.mViewCellId = vc->GetId();
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[1996] | 128 |
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[2625] | 129 | Debug << "vc: " << vc->GetId() << endl;
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[1996] | 130 |
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| 131 | ++ mProcessedViewCells;
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[1982] | 132 |
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[2625] | 133 | return vc;
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[1982] | 134 | }
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| 135 |
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| 136 |
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[1996] | 137 | int GvsPreprocessor::CheckDiscontinuity(const VssRay ¤tRay,
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| 138 | const Triangle3 &hitTriangle,
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| 139 | const VssRay &oldRay)
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[1460] | 140 | {
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[1932] | 141 | // the predicted hitpoint: we expect to hit the same mesh again
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| 142 | const Vector3 predictedHit = CalcPredictedHitPoint(currentRay, hitTriangle, oldRay);
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| 143 |
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| 144 | const float predictedLen = Magnitude(predictedHit - currentRay.mOrigin);
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| 145 | const float len = Magnitude(currentRay.mTermination - currentRay.mOrigin);
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| 146 |
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[2695] | 147 | #if 1
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[1932] | 148 | // distance large => this is likely to be a discontinuity
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| 149 | if ((predictedLen - len) > mThreshold)
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[2695] | 150 | #else
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| 151 | // q: rather use relative distance?
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[1933] | 152 | if ((predictedLen / len) > mThreshold)
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| 153 | #endif
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[1500] | 154 | {
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[1933] | 155 | // apply reverse sampling to find the gap
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[1500] | 156 | VssRay *newRay = ReverseSampling(currentRay, hitTriangle, oldRay);
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[1933] | 157 |
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[2695] | 158 | // check if reverse sampling was successful
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| 159 | if (newRay)
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| 160 | {
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| 161 | // set flag for visualization
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| 162 | if (0) newRay->mFlags |= VssRay::ReverseSample;
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| 163 |
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| 164 | // check if ray can be processed further
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| 165 | // note: ray deletion handled by ray pool)
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| 166 | HandleRay(newRay);
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| 167 |
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[1996] | 168 | return 1;
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[2695] | 169 | }
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[1500] | 170 | }
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| 171 |
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[1996] | 172 | return 0;
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[1486] | 173 | }
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[1473] | 174 |
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[2053] | 175 |
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[2705] | 176 | int GvsPreprocessor::CountObject(Intersectable *triObj)
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[2669] | 177 | {
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[2705] | 178 | int numObjects = 0;
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| 179 |
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[2687] | 180 | if ((triObj->mCounter != (NOT_ACCOUNTED_OBJECT + 1)) &&
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| 181 | (triObj->mCounter != (ACCOUNTED_OBJECT + 1)))
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[2669] | 182 | {
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| 183 | ++ triObj->mCounter;
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[2705] | 184 | ++ numObjects;
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[2669] | 185 | }
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[2705] | 186 |
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| 187 | mGenericStats[1] += numObjects;
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| 188 |
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| 189 | return numObjects;
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[2669] | 190 | }
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| 191 |
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| 192 |
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| 193 | void GvsPreprocessor::UpdateStatsForVisualization(KdIntersectable *kdInt)
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| 194 | {
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| 195 | // count new objects in pvs due to kd node conversion
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| 196 | myobjects.clear();
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[2705] | 197 | // also gather duplicates to avoid mailing
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| 198 | mKdTree->CollectObjectsWithDublicates(kdInt->GetItem(), myobjects);
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[2669] | 199 |
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[2705] | 200 | int numObj;
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| 201 |
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[2669] | 202 | ObjectContainer::const_iterator oit, oit_end = myobjects.end();
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| 203 |
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| 204 | for (oit = myobjects.begin(); oit != oit_end; ++ oit)
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[2705] | 205 | numObj = CountObject(*oit);
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| 206 |
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| 207 | mViewCellsManager->UpdateStatsForViewCell(mCurrentViewCell, kdInt, numObj);
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[2669] | 208 | }
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| 209 |
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| 210 |
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[1999] | 211 | bool GvsPreprocessor::HasContribution(VssRay &ray)
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[1486] | 212 | {
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[1999] | 213 | if (!ray.mTerminationObject)
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| 214 | return false;
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[1933] | 215 |
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[1999] | 216 | bool result;
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| 217 |
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[1977] | 218 | if (!mPerViewCell)
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| 219 | {
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[1999] | 220 | // store the rays + the intersected view cells
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| 221 | const bool storeViewCells = false; //GVS_DEBUG;
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| 222 |
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| 223 | mViewCellsManager->ComputeSampleContribution(ray,
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[1977] | 224 | true,
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[1999] | 225 | storeViewCells,
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[1990] | 226 | true);
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[1999] | 227 |
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| 228 | result = ray.mPvsContribution > 0;
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[1977] | 229 | }
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[2625] | 230 | else // original per view cell gvs
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[1977] | 231 | {
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[1999] | 232 | Intersectable *obj = ray.mTerminationObject;
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| 233 |
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[2692] | 234 | // test if triangle was accounted for yet
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[2691] | 235 | result = AddTriangleObject(obj);
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| 236 |
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| 237 | if (mUseKdPvs && (1 || result))
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[1999] | 238 | {
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[2669] | 239 | // exchange the triangle with the node in the pvs for kd pvs
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[2691] | 240 | KdNode *node = mKdTree->GetPvsNode(ray.mTermination);
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| 241 |
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| 242 | //KdNode *node = mKdTree->GetPvsNodeCheck(ray.mTermination, obj);
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[2694] | 243 | //if (!node) cerr << "e " << obj->GetBox() << " " << ray.mTermination << endl; else
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[2691] | 244 | if (!node->Mailed())
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[2694] | 245 | {//cout<<"o ";
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[2691] | 246 | // add to pvs
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| 247 | node->Mail();
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| 248 | KdIntersectable *kdInt = mKdTree->GetOrCreateKdIntersectable(node);
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| 249 | mCurrentViewCell->GetPvs().AddSampleDirty(kdInt, 1.0f);
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[1999] | 250 |
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[2705] | 251 | if (QT_VISUALIZATION_SHOWN) UpdateStatsForVisualization(kdInt);
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[2615] | 252 | }
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[1999] | 253 | }
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[1977] | 254 | }
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[1932] | 255 |
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[1999] | 256 | return result;
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| 257 | }
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| 258 |
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| 259 |
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| 260 | bool GvsPreprocessor::HandleRay(VssRay *vssRay)
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| 261 | {
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| 262 | if (!HasContribution(*vssRay))
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[1977] | 263 | return false;
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| 264 |
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[2005] | 265 | if (0 && GVS_DEBUG)
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[1990] | 266 | mVssRays.push_back(new VssRay(*vssRay));
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| 267 |
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[1977] | 268 | // add new ray to ray queue
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| 269 | mRayQueue.push(vssRay);
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| 270 |
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[1990] | 271 | ++ mGvsStats.mTotalContribution;
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[1533] | 272 |
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[1977] | 273 | return true;
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[1460] | 274 | }
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| 275 |
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[1500] | 276 |
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| 277 | /** Creates 3 new vertices for triangle vertex with specified index.
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[1489] | 278 | */
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[1932] | 279 | void GvsPreprocessor::CreateDisplacedVertices(VertexContainer &vertices,
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| 280 | const Triangle3 &hitTriangle,
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| 281 | const VssRay &ray,
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| 282 | const int index) const
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[1460] | 283 | {
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[1486] | 284 | const int indexU = (index + 1) % 3;
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| 285 | const int indexL = (index == 0) ? 2 : index - 1;
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| 286 |
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[1524] | 287 | const Vector3 a = hitTriangle.mVertices[index] - ray.GetOrigin();
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[1486] | 288 | const Vector3 b = hitTriangle.mVertices[indexU] - hitTriangle.mVertices[index];
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| 289 | const Vector3 c = hitTriangle.mVertices[index] - hitTriangle.mVertices[indexL];
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[1492] | 290 |
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[1533] | 291 | const float len = Magnitude(a);
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[1932] | 292 |
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[1523] | 293 | const Vector3 dir1 = Normalize(CrossProd(a, b)); //N((pi-xp)×(pi+1- pi));
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| 294 | const Vector3 dir2 = Normalize(CrossProd(a, c)); // N((pi-xp)×(pi- pi-1))
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[1524] | 295 | const Vector3 dir3 = DotProd(dir2, dir1) > 0 ? // N((pi-xp)×di,i-1+di,i+1×(pi-xp))
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| 296 | Normalize(dir2 + dir1) : Normalize(CrossProd(a, dir1) + CrossProd(dir2, a));
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[1492] | 297 |
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[1486] | 298 | // compute the new three hit points
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[1500] | 299 | // pi, i + 1: pi+ e·|pi-xp|·di, j
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[1932] | 300 | const Vector3 pt1 = hitTriangle.mVertices[index] + mEps * len * dir1;
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[1500] | 301 | // pi, i - 1: pi+ e·|pi-xp|·di, j
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[1932] | 302 | const Vector3 pt2 = hitTriangle.mVertices[index] + mEps * len * dir2;
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[1500] | 303 | // pi, i: pi+ e·|pi-xp|·di, j
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[1932] | 304 | const Vector3 pt3 = hitTriangle.mVertices[index] + mEps * len * dir3;
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[1489] | 305 |
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[1524] | 306 | vertices.push_back(pt2);
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| 307 | vertices.push_back(pt3);
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[1500] | 308 | vertices.push_back(pt1);
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[1489] | 309 | }
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| 310 |
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| 311 |
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[1500] | 312 | void GvsPreprocessor::EnlargeTriangle(VertexContainer &vertices,
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| 313 | const Triangle3 &hitTriangle,
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[1932] | 314 | const VssRay &ray) const
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[1500] | 315 | {
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[1932] | 316 | CreateDisplacedVertices(vertices, hitTriangle, ray, 0);
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| 317 | CreateDisplacedVertices(vertices, hitTriangle, ray, 1);
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| 318 | CreateDisplacedVertices(vertices, hitTriangle, ray, 2);
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[1500] | 319 | }
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[1492] | 320 |
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[1500] | 321 |
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[1932] | 322 | Vector3 GvsPreprocessor::CalcPredictedHitPoint(const VssRay &newRay,
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| 323 | const Triangle3 &hitTriangle,
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| 324 | const VssRay &oldRay) const
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[1489] | 325 | {
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[1932] | 326 | // find the intersection of the plane induced by the
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| 327 | // hit triangle with the new ray
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[1500] | 328 | Plane3 plane(hitTriangle.GetNormal(), hitTriangle.mVertices[0]);
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| 329 |
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| 330 | const Vector3 hitPt =
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| 331 | plane.FindIntersection(newRay.mTermination, newRay.mOrigin);
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| 332 |
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| 333 | return hitPt;
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| 334 | }
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| 335 |
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| 336 |
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| 337 | static bool EqualVisibility(const VssRay &a, const VssRay &b)
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| 338 | {
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| 339 | return a.mTerminationObject == b.mTerminationObject;
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| 340 | }
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| 341 |
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| 342 |
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| 343 | int GvsPreprocessor::SubdivideEdge(const Triangle3 &hitTriangle,
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| 344 | const Vector3 &p1,
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| 345 | const Vector3 &p2,
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[1932] | 346 | const VssRay &ray1,
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| 347 | const VssRay &ray2,
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[1500] | 348 | const VssRay &oldRay)
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[2048] | 349 | {
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| 350 | //cout <<"y"<<Magnitude(p1 - p2) << " ";
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[1996] | 351 | int castRays = 0;
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| 352 |
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[1990] | 353 | // cast reverse rays if necessary
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[1996] | 354 | castRays += CheckDiscontinuity(ray1, hitTriangle, oldRay);
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| 355 | castRays += CheckDiscontinuity(ray2, hitTriangle, oldRay);
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[1500] | 356 |
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[2017] | 357 | if (EqualVisibility(ray1, ray2) || (SqrMagnitude(p1 - p2) <= MIN_DIST))
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[1500] | 358 | {
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[1996] | 359 | return castRays;
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[1500] | 360 | }
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[1932] | 361 |
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[1990] | 362 | // the new subdivision point
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| 363 | const Vector3 p = (p1 + p2) * 0.5f;
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[2017] | 364 | //cout << "p: " << p << " " << p1 << " " << p2 << endl;
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[1990] | 365 | // cast ray into the new point
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| 366 | SimpleRay sray(oldRay.mOrigin, p - oldRay.mOrigin, SamplingStrategy::GVS, 1.0f);
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[1932] | 367 |
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[1996] | 368 | VssRay *newRay = mRayCaster->CastRay(sray, mViewCellsManager->GetViewSpaceBox(), !mPerViewCell);
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| 369 |
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| 370 | ++ castRays;
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[1580] | 371 |
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[1996] | 372 | if (!newRay) return castRays;
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[1580] | 373 |
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[2053] | 374 | //newRay->mFlags |= VssRay::BorderSample;
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[1990] | 375 |
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| 376 | // add new ray to queue
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| 377 | const bool enqueued = HandleRay(newRay);
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| 378 |
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| 379 | // subdivide further
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[1996] | 380 | castRays += SubdivideEdge(hitTriangle, p1, p, ray1, *newRay, oldRay);
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| 381 | castRays += SubdivideEdge(hitTriangle, p, p2, *newRay, ray2, oldRay);
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[1990] | 382 |
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| 383 | // this ray will not be further processed
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[2692] | 384 | // note: ray deletion is handled by ray pool
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[1990] | 385 |
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[1996] | 386 | return castRays;
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[1500] | 387 | }
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| 388 |
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| 389 |
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| 390 | int GvsPreprocessor::AdaptiveBorderSampling(const VssRay ¤tRay)
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| 391 | {
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| 392 | Intersectable *tObj = currentRay.mTerminationObject;
|
---|
[2597] | 393 | // q matt: can this be possible
|
---|
| 394 | if (!tObj) return 0;
|
---|
| 395 |
|
---|
[1486] | 396 | Triangle3 hitTriangle;
|
---|
[1489] | 397 |
|
---|
| 398 | // other types not implemented yet
|
---|
| 399 | if (tObj->Type() == Intersectable::TRIANGLE_INTERSECTABLE)
|
---|
[2017] | 400 | hitTriangle = static_cast<TriangleIntersectable *>(tObj)->GetItem();
|
---|
[1522] | 401 | else
|
---|
[2601] | 402 | cout << "border sampling: " << Intersectable::GetTypeName(tObj) << " not yet implemented" << endl;
|
---|
[1489] | 403 |
|
---|
[2601] | 404 | //cout << "type: " << Intersectable::GetTypeName(tObj) << endl;
|
---|
| 405 |
|
---|
[1500] | 406 | VertexContainer enlargedTriangle;
|
---|
| 407 |
|
---|
| 408 | /// create 3 new hit points for each vertex
|
---|
| 409 | EnlargeTriangle(enlargedTriangle, hitTriangle, currentRay);
|
---|
| 410 |
|
---|
| 411 | /// create rays from sample points and handle them
|
---|
[1492] | 412 | SimpleRayContainer simpleRays;
|
---|
| 413 | simpleRays.reserve(9);
|
---|
[1486] | 414 |
|
---|
[1500] | 415 | VertexContainer::const_iterator vit, vit_end = enlargedTriangle.end();
|
---|
[1486] | 416 |
|
---|
[1500] | 417 | for (vit = enlargedTriangle.begin(); vit != vit_end; ++ vit)
|
---|
| 418 | {
|
---|
| 419 | const Vector3 rayDir = (*vit) - currentRay.GetOrigin();
|
---|
[1990] | 420 |
|
---|
[1883] | 421 | SimpleRay sr(currentRay.GetOrigin(), rayDir, SamplingStrategy::GVS, 1.0f);
|
---|
[1990] | 422 | simpleRays.AddRay(sr);
|
---|
[1500] | 423 | }
|
---|
[1522] | 424 |
|
---|
[1566] | 425 | if (0)
|
---|
| 426 | {
|
---|
[1932] | 427 | // visualize enlarged triangles
|
---|
[1566] | 428 | VizStruct dummy;
|
---|
| 429 | dummy.enlargedTriangle = new Polygon3(enlargedTriangle);
|
---|
| 430 | dummy.originalTriangle = hitTriangle;
|
---|
| 431 | vizContainer.push_back(dummy);
|
---|
| 432 | }
|
---|
| 433 |
|
---|
[1524] | 434 | // cast rays to triangle vertices and determine visibility
|
---|
[1489] | 435 | VssRayContainer vssRays;
|
---|
[1533] | 436 |
|
---|
[1932] | 437 | // don't cast double rays as we need only the forward rays
|
---|
[1996] | 438 | const bool castDoubleRays = !mPerViewCell;
|
---|
[1990] | 439 | // cannot prune invalid rays because we have to compare adjacent rays.
|
---|
[1932] | 440 | const bool pruneInvalidRays = false;
|
---|
| 441 |
|
---|
[1996] | 442 |
|
---|
| 443 | //////////
|
---|
| 444 | //-- fill up simple rays with random rays so we can cast 16
|
---|
| 445 |
|
---|
| 446 | //const int numRandomRays = 0;
|
---|
| 447 | const int numRandomRays = 16 - (int)simpleRays.size();
|
---|
| 448 |
|
---|
[2691] | 449 | GenerateRays(numRandomRays, *mDistribution, simpleRays);
|
---|
[1996] | 450 |
|
---|
[2053] | 451 |
|
---|
[1996] | 452 | /////////////////////
|
---|
| 453 |
|
---|
[1990] | 454 | // keep origin for per view cell sampling
|
---|
[1996] | 455 | CastRays(simpleRays, vssRays, castDoubleRays, pruneInvalidRays);
|
---|
[1932] | 456 |
|
---|
[1996] | 457 | const int numBorderSamples = (int)vssRays.size() - numRandomRays;
|
---|
[2648] | 458 |
|
---|
| 459 | #if 0
|
---|
[1580] | 460 | // set flags
|
---|
[2648] | 461 | VssRayContainer::const_iterator rit, rit_end = vssRays.end();
|
---|
[1996] | 462 | for (rit = vssRays.begin(); rit != rit_end; ++ rit, ++ i)
|
---|
[2053] | 463 | (*rit)->mFlags |= VssRay::BorderSample;
|
---|
[2648] | 464 | #endif
|
---|
| 465 |
|
---|
[1999] | 466 | int castRays = (int)simpleRays.size();
|
---|
| 467 |
|
---|
| 468 | VssRayContainer invalidSamples;
|
---|
| 469 |
|
---|
[1932] | 470 | // handle rays
|
---|
[1999] | 471 | EnqueueRays(vssRays, invalidSamples);
|
---|
| 472 |
|
---|
[1500] | 473 | // recursivly subdivide each edge
|
---|
[1996] | 474 | for (int i = 0; i < numBorderSamples; ++ i)
|
---|
[1500] | 475 | {
|
---|
[1932] | 476 | castRays += SubdivideEdge(hitTriangle,
|
---|
| 477 | enlargedTriangle[i],
|
---|
[1996] | 478 | enlargedTriangle[(i + 1) % numBorderSamples],
|
---|
[1932] | 479 | *vssRays[i],
|
---|
[1996] | 480 | *vssRays[(i + 1) % numBorderSamples],
|
---|
[1932] | 481 | currentRay);
|
---|
[1500] | 482 | }
|
---|
[1999] | 483 |
|
---|
[1934] | 484 | mGvsStats.mBorderSamples += castRays;
|
---|
[1932] | 485 |
|
---|
[2053] | 486 | //CLEAR_CONTAINER(invalidSamples);
|
---|
[2048] | 487 |
|
---|
[2687] | 488 | //cout << "here3 cast rays: " << castRays << endl;
|
---|
[1533] | 489 | return castRays;
|
---|
[1473] | 490 | }
|
---|
| 491 |
|
---|
| 492 |
|
---|
[1996] | 493 | bool GvsPreprocessor::GetPassingPoint(const VssRay ¤tRay,
|
---|
| 494 | const Triangle3 &occluder,
|
---|
| 495 | const VssRay &oldRay,
|
---|
| 496 | Vector3 &newPoint) const
|
---|
[1933] | 497 | {
|
---|
| 498 | //-- The plane p = (xp, hit(x), hit(xold)) is intersected
|
---|
| 499 | //-- with the newly found occluder (xold is the previous ray from
|
---|
| 500 | //-- which x was generated). On the intersecting line, we select a point
|
---|
| 501 | //-- pnew which lies just outside of the new triangle so the ray
|
---|
| 502 | //-- just passes through the gap
|
---|
| 503 |
|
---|
| 504 | const Plane3 plane(currentRay.GetOrigin(),
|
---|
| 505 | currentRay.GetTermination(),
|
---|
| 506 | oldRay.GetTermination());
|
---|
| 507 |
|
---|
| 508 | Vector3 pt1, pt2;
|
---|
| 509 |
|
---|
| 510 | const bool intersects = occluder.GetPlaneIntersection(plane, pt1, pt2);
|
---|
| 511 |
|
---|
| 512 | if (!intersects)
|
---|
[1996] | 513 | {
|
---|
[1999] | 514 | //cerr << "big error!! no intersection " << pt1 << " " << pt2 << endl;
|
---|
[1996] | 515 | return false;
|
---|
| 516 | }
|
---|
[1933] | 517 |
|
---|
| 518 | // get the intersection point on the old ray
|
---|
| 519 | const Plane3 triPlane(occluder.GetNormal(), occluder.mVertices[0]);
|
---|
| 520 |
|
---|
| 521 | const float t = triPlane.FindT(oldRay.mOrigin, oldRay.mTermination);
|
---|
| 522 | const Vector3 pt3 = oldRay.mOrigin + t * (oldRay.mTermination - oldRay.mOrigin);
|
---|
| 523 |
|
---|
[2695] | 524 | // evaluate new hitpoint just outside the triangle
|
---|
[1933] | 525 | // the point is chosen to be on the side closer to the original ray
|
---|
| 526 | if (Distance(pt1, pt3) < Distance(pt2, pt3))
|
---|
[2695] | 527 | newPoint = pt1 + mEps * (pt1 - pt2);
|
---|
[1933] | 528 | else
|
---|
[2695] | 529 | newPoint = pt2 + mEps * (pt2 - pt1);
|
---|
[1933] | 530 |
|
---|
[1934] | 531 | //cout << "passing point: " << newPoint << endl << endl;
|
---|
[1996] | 532 | return true;
|
---|
[1500] | 533 | }
|
---|
| 534 |
|
---|
| 535 |
|
---|
| 536 | VssRay *GvsPreprocessor::ReverseSampling(const VssRay ¤tRay,
|
---|
| 537 | const Triangle3 &hitTriangle,
|
---|
| 538 | const VssRay &oldRay)
|
---|
| 539 | {
|
---|
[1933] | 540 | // get triangle occluding the path to the hit mesh
|
---|
| 541 | Triangle3 occluder;
|
---|
| 542 | Intersectable *tObj = currentRay.mTerminationObject;
|
---|
[1934] | 543 |
|
---|
[1933] | 544 | // q: why can this happen?
|
---|
| 545 | if (!tObj)
|
---|
| 546 | return NULL;
|
---|
| 547 |
|
---|
| 548 | // other types not implemented yet
|
---|
| 549 | if (tObj->Type() == Intersectable::TRIANGLE_INTERSECTABLE)
|
---|
[2048] | 550 | {
|
---|
[2017] | 551 | occluder = static_cast<TriangleIntersectable *>(tObj)->GetItem();
|
---|
[2048] | 552 | }
|
---|
[1933] | 553 | else
|
---|
[2048] | 554 | {
|
---|
| 555 | cout << "reverse sampling: " << tObj->Type() << " not yet implemented" << endl;
|
---|
| 556 | }
|
---|
[1933] | 557 | // get a point which is passing just outside of the occluder
|
---|
[1996] | 558 | Vector3 newPoint;
|
---|
| 559 |
|
---|
[2695] | 560 | // q: why is there sometimes no intersecton found?
|
---|
[1996] | 561 | if (!GetPassingPoint(currentRay, occluder, oldRay, newPoint))
|
---|
| 562 | return NULL;
|
---|
| 563 |
|
---|
[1500] | 564 | const Vector3 predicted = CalcPredictedHitPoint(currentRay, hitTriangle, oldRay);
|
---|
| 565 |
|
---|
[1990] | 566 | Vector3 newDir, newOrigin;
|
---|
| 567 |
|
---|
[1932] | 568 | //-- Construct the mutated ray with xnew,
|
---|
| 569 | //-- dir = predicted(x)- pnew as direction vector
|
---|
[1990] | 570 | newDir = predicted - newPoint;
|
---|
[1932] | 571 |
|
---|
[1933] | 572 | // take xnew, p = intersect(viewcell, line(pnew, predicted(x)) as origin ?
|
---|
[1500] | 573 | // difficult to say!!
|
---|
[1935] | 574 | const float offset = 0.5f;
|
---|
[1990] | 575 | newOrigin = newPoint - newDir * offset;
|
---|
| 576 |
|
---|
[2694] | 577 |
|
---|
[1990] | 578 | //////////////
|
---|
| 579 | //-- for per view cell sampling, we must check for intersection
|
---|
| 580 | //-- with the current view cell
|
---|
[1500] | 581 |
|
---|
[1990] | 582 | if (mPerViewCell)
|
---|
| 583 | {
|
---|
| 584 | // send ray to view cell
|
---|
| 585 | static Ray ray;
|
---|
| 586 | ray.Clear();
|
---|
| 587 | ray.Init(newOrigin, -newDir, Ray::LOCAL_RAY);
|
---|
| 588 |
|
---|
| 589 | //cout << "z";
|
---|
| 590 | // check if ray intersects view cell
|
---|
| 591 | if (!mCurrentViewCell->CastRay(ray))
|
---|
| 592 | return NULL;
|
---|
[1981] | 593 |
|
---|
[1990] | 594 | Ray::Intersection &hit = ray.intersections[0];
|
---|
| 595 |
|
---|
| 596 | //cout << "q";
|
---|
| 597 | // the ray starts from the view cell
|
---|
| 598 | newOrigin = ray.Extrap(hit.mT);
|
---|
| 599 | }
|
---|
[1981] | 600 |
|
---|
[2695] | 601 | ++ mGvsStats.mReverseSamples;
|
---|
| 602 |
|
---|
[1933] | 603 | const SimpleRay simpleRay(newOrigin, newDir, SamplingStrategy::GVS, 1.0f);
|
---|
[1571] | 604 |
|
---|
[1933] | 605 | VssRay *reverseRay =
|
---|
[1996] | 606 | mRayCaster->CastRay(simpleRay, mViewCellsManager->GetViewSpaceBox(), !mPerViewCell);
|
---|
[1933] | 607 |
|
---|
| 608 | return reverseRay;
|
---|
[1473] | 609 | }
|
---|
| 610 |
|
---|
[1489] | 611 |
|
---|
[2691] | 612 | int GvsPreprocessor::CastInitialSamples(int numSamples)
|
---|
[1489] | 613 | {
|
---|
[1473] | 614 | const long startTime = GetTime();
|
---|
[1595] | 615 |
|
---|
[1489] | 616 | // generate simple rays
|
---|
| 617 | SimpleRayContainer simpleRays;
|
---|
[1990] | 618 |
|
---|
[2691] | 619 | ViewCellBorderBasedDistribution vcStrat(*this, mCurrentViewCell);
|
---|
| 620 | GenerateRays(numSamples, *mDistribution, simpleRays);
|
---|
[1990] | 621 |
|
---|
| 622 | //cout << "sr: " << simpleRays.size() << endl;
|
---|
[1489] | 623 | // generate vss rays
|
---|
[1473] | 624 | VssRayContainer samples;
|
---|
[1990] | 625 |
|
---|
[1996] | 626 | const bool castDoubleRays = !mPerViewCell;
|
---|
[1990] | 627 | const bool pruneInvalidRays = true;
|
---|
| 628 |
|
---|
[1996] | 629 | CastRays(simpleRays, samples, castDoubleRays, pruneInvalidRays);
|
---|
| 630 |
|
---|
[1999] | 631 | VssRayContainer invalidSamples;
|
---|
| 632 |
|
---|
[1489] | 633 | // add to ray queue
|
---|
[1999] | 634 | EnqueueRays(samples, invalidSamples);
|
---|
[1533] | 635 |
|
---|
[2053] | 636 | //CLEAR_CONTAINER(invalidSamples);
|
---|
[2633] | 637 | //Debug << "generated " << numSamples << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1990] | 638 | return (int)simpleRays.size();
|
---|
[1489] | 639 | }
|
---|
| 640 |
|
---|
| 641 |
|
---|
[1999] | 642 | void GvsPreprocessor::EnqueueRays(VssRayContainer &samples, VssRayContainer &invalidSamples)
|
---|
[1489] | 643 | {
|
---|
[1486] | 644 | // add samples to ray queue
|
---|
[1473] | 645 | VssRayContainer::const_iterator vit, vit_end = samples.end();
|
---|
[1576] | 646 | for (vit = samples.begin(); vit != vit_end; ++ vit)
|
---|
[1473] | 647 | {
|
---|
[1999] | 648 | VssRay *ray = *vit;
|
---|
| 649 |
|
---|
[2053] | 650 | HandleRay(ray);
|
---|
[2633] | 651 | //if (!HandleRay(ray)) invalidSamples.push_back(ray);
|
---|
[1460] | 652 | }
|
---|
| 653 | }
|
---|
| 654 |
|
---|
[1473] | 655 |
|
---|
[1990] | 656 | int GvsPreprocessor::ProcessQueue()
|
---|
[1460] | 657 | {
|
---|
[2695] | 658 | ++ mGvsStats.mGvsRuns;
|
---|
[1545] | 659 |
|
---|
[2687] | 660 | int castSamples = 0;
|
---|
| 661 |
|
---|
[2048] | 662 | while (!mRayQueue.empty())//&& (mGvsStats.mTotalSamples + castSamples < mTotalSamples) )
|
---|
[2690] | 663 | {
|
---|
[1990] | 664 | // handle next ray
|
---|
| 665 | VssRay *ray = mRayQueue.top();
|
---|
| 666 | mRayQueue.pop();
|
---|
[1996] | 667 |
|
---|
[1990] | 668 | const int newSamples = AdaptiveBorderSampling(*ray);
|
---|
[1934] | 669 |
|
---|
[1990] | 670 | castSamples += newSamples;
|
---|
[2687] | 671 | // note: don't have to delete because handled by ray pool
|
---|
[1473] | 672 | }
|
---|
| 673 |
|
---|
[2161] | 674 | /*if (mRayCaster->mVssRayPool.mIndex > mSamplesPerPass)
|
---|
[2048] | 675 | {
|
---|
| 676 | cout << "warning: new samples: " << castSamples << " " << "queue: " << (int)mRayQueue.size() << endl;
|
---|
| 677 | Debug << "warning: new samples: " << castSamples << " " << "queue: " << (int)mRayQueue.size() << endl;
|
---|
[2161] | 678 | }*/
|
---|
[2048] | 679 |
|
---|
[1533] | 680 | return castSamples;
|
---|
[1460] | 681 | }
|
---|
| 682 |
|
---|
[1473] | 683 |
|
---|
[1990] | 684 | void ExportVssRays(Exporter *exporter, const VssRayContainer &vssRays)
|
---|
[1460] | 685 | {
|
---|
[1990] | 686 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1473] | 687 |
|
---|
[1990] | 688 | VssRayContainer::const_iterator rit, rit_end = vssRays.end();
|
---|
| 689 |
|
---|
| 690 | // prepare some rays for output
|
---|
| 691 | for (rit = vssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1473] | 692 | {
|
---|
[1990] | 693 | //const float p = RandomValue(0.0f, (float)vssRays.size());
|
---|
[1545] | 694 |
|
---|
[1990] | 695 | if (1)//(p < raysOut)
|
---|
| 696 | {
|
---|
| 697 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
| 698 | {
|
---|
| 699 | vcRays.push_back(*rit);
|
---|
| 700 | }
|
---|
| 701 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 702 | {
|
---|
| 703 | vcRays2.push_back(*rit);
|
---|
| 704 | }
|
---|
| 705 | else
|
---|
| 706 | {
|
---|
| 707 | vcRays3.push_back(*rit);
|
---|
| 708 | }
|
---|
| 709 | }
|
---|
[1460] | 710 | }
|
---|
[1990] | 711 |
|
---|
[2005] | 712 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 713 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
[2003] | 714 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[1990] | 715 | }
|
---|
| 716 |
|
---|
| 717 |
|
---|
[1999] | 718 | void GvsPreprocessor::VisualizeViewCell(const ObjectContainer &objects)
|
---|
[1990] | 719 | {
|
---|
| 720 | Intersectable::NewMail();
|
---|
| 721 | Material m;
|
---|
[1528] | 722 |
|
---|
[1996] | 723 | char str[64]; sprintf(str, "pass%06d.wrl", mProcessedViewCells);
|
---|
[1990] | 724 |
|
---|
| 725 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
| 726 | if (!exporter)
|
---|
| 727 | return;
|
---|
| 728 |
|
---|
[1999] | 729 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 730 |
|
---|
| 731 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 732 | {
|
---|
| 733 | Intersectable *intersect = *oit;
|
---|
| 734 |
|
---|
| 735 | m = RandomMaterial();
|
---|
| 736 | exporter->SetForcedMaterial(m);
|
---|
| 737 | exporter->ExportIntersectable(intersect);
|
---|
[1990] | 738 | }
|
---|
| 739 |
|
---|
| 740 | cout << "vssrays: " << (int)mVssRays.size() << endl;
|
---|
| 741 | ExportVssRays(exporter, mVssRays);
|
---|
| 742 |
|
---|
[2597] | 743 |
|
---|
[1990] | 744 | /////////////////
|
---|
| 745 | //-- export view cell geometry
|
---|
| 746 |
|
---|
[2597] | 747 | //exporter->SetWireframe();
|
---|
[1990] | 748 |
|
---|
| 749 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 750 | exporter->SetForcedMaterial(m);
|
---|
| 751 |
|
---|
[1999] | 752 | AxisAlignedBox3 bbox = mCurrentViewCell->GetMesh()->mBox;
|
---|
| 753 | exporter->ExportBox(bbox);
|
---|
[1990] | 754 | //exporter->SetFilled();
|
---|
| 755 |
|
---|
[2053] | 756 | delete exporter;
|
---|
[1460] | 757 | }
|
---|
| 758 |
|
---|
| 759 |
|
---|
[1982] | 760 | void GvsPreprocessor::VisualizeViewCells()
|
---|
| 761 | {
|
---|
[1996] | 762 | char str[64]; sprintf(str, "tmp/pass%06d_%04d-", mProcessedViewCells, mPass);
|
---|
[1982] | 763 |
|
---|
| 764 | // visualization
|
---|
| 765 | if (mGvsStats.mPassContribution > 0)
|
---|
| 766 | {
|
---|
| 767 | const bool exportRays = true;
|
---|
| 768 | const bool exportPvs = true;
|
---|
| 769 |
|
---|
| 770 | mViewCellsManager->ExportSingleViewCells(mObjects,
|
---|
| 771 | 10,
|
---|
| 772 | false,
|
---|
| 773 | exportPvs,
|
---|
| 774 | exportRays,
|
---|
| 775 | 1000,
|
---|
| 776 | str);
|
---|
| 777 | }
|
---|
| 778 |
|
---|
| 779 | // remove pass samples
|
---|
| 780 | ViewCellContainer::const_iterator vit, vit_end = mViewCellsManager->GetViewCells().end();
|
---|
| 781 |
|
---|
| 782 | for (vit = mViewCellsManager->GetViewCells().begin(); vit != vit_end; ++ vit)
|
---|
| 783 | {
|
---|
| 784 | (*vit)->DelRayRefs();
|
---|
| 785 | }
|
---|
| 786 | }
|
---|
| 787 |
|
---|
| 788 |
|
---|
[2687] | 789 | void GvsPreprocessor::CompileViewCellsFromPointList()
|
---|
[1996] | 790 | {
|
---|
[2687] | 791 | ViewCell::NewMail();
|
---|
| 792 |
|
---|
[2648] | 793 | // Receive list of view cells from view cells manager
|
---|
[2598] | 794 | ViewCellPointsList *vcPoints = mViewCellsManager->GetViewCellPointsList();
|
---|
[2687] | 795 |
|
---|
| 796 | vector<ViewCellPoints *>::const_iterator vit, vit_end = vcPoints->end();
|
---|
| 797 |
|
---|
| 798 | for (vit = vcPoints->begin(); vit != vit_end; ++ vit)
|
---|
[2048] | 799 | {
|
---|
[2687] | 800 | ViewCellPoints *vp = *vit;
|
---|
[2048] | 801 |
|
---|
[2687] | 802 | if (vp->first) // view cell specified
|
---|
[2648] | 803 | {
|
---|
[2687] | 804 | ViewCell *viewCell = vp->first;
|
---|
[2048] | 805 |
|
---|
[2687] | 806 | if (!viewCell->Mailed())
|
---|
| 807 | {
|
---|
| 808 | viewCell->Mail();
|
---|
| 809 | mViewCells.push_back(viewCell);
|
---|
| 810 |
|
---|
| 811 | if (mViewCells.size() >= mMaxViewCells)
|
---|
| 812 | break;
|
---|
| 813 | }
|
---|
[2662] | 814 | }
|
---|
[2687] | 815 | else // no view cell specified => compute view cells using view point
|
---|
| 816 | {
|
---|
| 817 | SimpleRayContainer::const_iterator rit, rit_end = vp->second.end();
|
---|
| 818 |
|
---|
| 819 | for (rit = vp->second.begin(); rit != rit_end; ++ rit)
|
---|
| 820 | {
|
---|
| 821 | SimpleRay ray = *rit;
|
---|
| 822 |
|
---|
| 823 | ViewCell *viewCell = mViewCellsManager->GetViewCell(ray.mOrigin);
|
---|
| 824 |
|
---|
| 825 | if (viewCell && !viewCell->Mailed())
|
---|
| 826 | {
|
---|
| 827 | viewCell->Mail();
|
---|
| 828 | mViewCells.push_back(viewCell);
|
---|
| 829 |
|
---|
| 830 | if (mViewCells.size() >= mMaxViewCells)
|
---|
| 831 | break;
|
---|
| 832 | }
|
---|
| 833 | }
|
---|
| 834 | }
|
---|
[2048] | 835 | }
|
---|
[2687] | 836 | }
|
---|
| 837 |
|
---|
| 838 |
|
---|
| 839 | void GvsPreprocessor::CompileViewCellsList()
|
---|
| 840 | {
|
---|
| 841 | if (!mViewCellsManager->GetViewCellPointsList()->empty())
|
---|
| 842 | {
|
---|
| 843 | cout << "processing view point list" << endl;
|
---|
| 844 | CompileViewCellsFromPointList();
|
---|
| 845 | }
|
---|
[2662] | 846 | else
|
---|
| 847 | {
|
---|
[2687] | 848 | ViewCell::NewMail();
|
---|
| 849 |
|
---|
[2662] | 850 | while ((int)mViewCells.size() < mMaxViewCells)
|
---|
[1996] | 851 | {
|
---|
[2662] | 852 | const int tries = 10000;
|
---|
| 853 | int i = 0;
|
---|
[1996] | 854 |
|
---|
[2662] | 855 | for (i = 0; i < tries; ++ i)
|
---|
[1996] | 856 | {
|
---|
[2662] | 857 | const int idx = (int)RandomValue(0.0f, (float)mViewCellsManager->GetNumViewCells() - 0.5f);
|
---|
| 858 |
|
---|
| 859 | ViewCell *viewCell = mViewCellsManager->GetViewCell(idx);
|
---|
| 860 |
|
---|
| 861 | if (!viewCell->Mailed())
|
---|
| 862 | {
|
---|
| 863 | viewCell->Mail();
|
---|
| 864 | break;
|
---|
| 865 | }
|
---|
| 866 |
|
---|
| 867 | mViewCells.push_back(viewCell);
|
---|
[1999] | 868 | }
|
---|
[2597] | 869 |
|
---|
[2662] | 870 | if (i == tries)
|
---|
| 871 | {
|
---|
| 872 | cerr << "big error! no view cell found" << endl;
|
---|
| 873 | break;
|
---|
| 874 | }
|
---|
[1999] | 875 | }
|
---|
| 876 | }
|
---|
[2662] | 877 |
|
---|
| 878 | cout << "\ncomputing list of " << mViewCells.size() << " view cells" << endl;
|
---|
[1999] | 879 | }
|
---|
[1996] | 880 |
|
---|
[2669] | 881 |
|
---|
[2705] | 882 | void GvsPreprocessor::ComputeViewCellGeometryIntersection()
|
---|
[2687] | 883 | {
|
---|
[2691] | 884 | AxisAlignedBox3 box = mCurrentViewCell->GetBox();
|
---|
[2687] | 885 |
|
---|
[2691] | 886 | int oldTrianglePvs = (int)mTrianglePvs.size();
|
---|
| 887 | int newKdObj = 0;
|
---|
| 888 |
|
---|
[2687] | 889 | // compute pvs kd nodes that intersect view cell
|
---|
| 890 | ObjectContainer kdobjects;
|
---|
[2691] | 891 |
|
---|
| 892 | // find intersecting objects not in pvs (i.e., only unmailed)
|
---|
[2687] | 893 | mKdTree->CollectKdObjects(box, kdobjects);
|
---|
| 894 |
|
---|
| 895 | ObjectContainer pvsKdObjects;
|
---|
| 896 |
|
---|
| 897 | ObjectContainer::const_iterator oit, oit_end = kdobjects.end();
|
---|
| 898 |
|
---|
| 899 | for (oit = kdobjects.begin(); oit != oit_end; ++ oit)
|
---|
| 900 | {
|
---|
| 901 | KdIntersectable *kdInt = static_cast<KdIntersectable *>(*oit);
|
---|
| 902 |
|
---|
| 903 | myobjects.clear();
|
---|
[2691] | 904 | mKdTree->CollectObjectsWithDublicates(kdInt->GetItem(), myobjects);
|
---|
[2687] | 905 |
|
---|
| 906 | // account for kd object pvs
|
---|
| 907 | bool addkdobj = false;
|
---|
| 908 |
|
---|
| 909 | ObjectContainer::const_iterator oit, oit_end = myobjects.end();
|
---|
| 910 |
|
---|
| 911 | for (oit = myobjects.begin(); oit != oit_end; ++ oit)
|
---|
| 912 | {
|
---|
| 913 | TriangleIntersectable *triObj = static_cast<TriangleIntersectable *>(*oit);
|
---|
[2691] | 914 |
|
---|
| 915 | // test if the triangle itself intersects
|
---|
[2687] | 916 | if (box.Intersects(triObj->GetItem()))
|
---|
[2691] | 917 | addkdobj = AddTriangleObject(triObj);
|
---|
[2687] | 918 | }
|
---|
| 919 |
|
---|
[2691] | 920 | // add node to kd pvs
|
---|
| 921 | if (1 && addkdobj)
|
---|
| 922 | {
|
---|
| 923 | ++ newKdObj;
|
---|
| 924 | mCurrentViewCell->GetPvs().AddSampleDirty(kdInt, 1.0f);
|
---|
| 925 | //mCurrentViewCell->GetPvs().AddSampleDirtyCheck(kdInt, 1.0f);
|
---|
[2705] | 926 | if (QT_VISUALIZATION_SHOWN) UpdateStatsForVisualization(kdInt);
|
---|
[2691] | 927 | }
|
---|
[2687] | 928 | }
|
---|
| 929 |
|
---|
[2691] | 930 | cout << "added " << (int)mTrianglePvs.size() - oldTrianglePvs << " triangles (" << newKdObj << " objects) by intersection" << endl;
|
---|
[2687] | 931 | }
|
---|
| 932 |
|
---|
[2691] | 933 |
|
---|
[1990] | 934 | void GvsPreprocessor::PerViewCellComputation()
|
---|
[1982] | 935 | {
|
---|
[2690] | 936 | while (mCurrentViewCell = NextViewCell())
|
---|
[1999] | 937 | {
|
---|
[2625] | 938 | // hack: reset counters
|
---|
| 939 | ObjectContainer::const_iterator oit, oit_end = mObjects.end();
|
---|
[2615] | 940 |
|
---|
[2625] | 941 | for (oit = mObjects.begin(); oit != oit_end; ++ oit)
|
---|
[2669] | 942 | (*oit)->mCounter = NOT_ACCOUNTED_OBJECT;
|
---|
[1982] | 943 |
|
---|
[2691] | 944 | mDistribution->SetViewCell(mCurrentViewCell);
|
---|
[2690] | 945 | ComputeViewCell();
|
---|
[2625] | 946 | }
|
---|
| 947 | }
|
---|
[1990] | 948 |
|
---|
[1996] | 949 |
|
---|
[2625] | 950 | void GvsPreprocessor::PerViewCellComputation2()
|
---|
| 951 | {
|
---|
| 952 | while (1)
|
---|
| 953 | {
|
---|
| 954 | if (!mRendererWidget)
|
---|
| 955 | continue;
|
---|
[1990] | 956 |
|
---|
[2690] | 957 | mCurrentViewCell = mViewCellsManager->GetViewCell(mRendererWidget->GetViewPoint());
|
---|
[2601] | 958 |
|
---|
[2625] | 959 | // no valid view cell or view cell already computed
|
---|
[2690] | 960 | if (!mCurrentViewCell || !mCurrentViewCell->GetPvs().Empty() || !mRendererWidget->mComputeGVS)
|
---|
[2625] | 961 | continue;
|
---|
[2615] | 962 |
|
---|
[2643] | 963 | mRendererWidget->mComputeGVS = false;
|
---|
[2625] | 964 | // hack: reset counters
|
---|
| 965 | ObjectContainer::const_iterator oit, oit_end = mObjects.end();
|
---|
[2615] | 966 |
|
---|
[2625] | 967 | for (oit = mObjects.begin(); oit != oit_end; ++ oit)
|
---|
[2669] | 968 | (*oit)->mCounter = NOT_ACCOUNTED_OBJECT;
|
---|
[2601] | 969 |
|
---|
[2690] | 970 | ComputeViewCell();
|
---|
[2625] | 971 | ++ mProcessedViewCells;
|
---|
| 972 | }
|
---|
| 973 | }
|
---|
[1999] | 974 |
|
---|
[1982] | 975 |
|
---|
[2048] | 976 | void GvsPreprocessor::StorePvs(const ObjectContainer &objectPvs)
|
---|
| 977 | {
|
---|
| 978 | ObjectContainer::const_iterator oit, oit_end = objectPvs.end();
|
---|
| 979 |
|
---|
| 980 | for (oit = objectPvs.begin(); oit != oit_end; ++ oit)
|
---|
| 981 | {
|
---|
| 982 | mCurrentViewCell->GetPvs().AddSample(*oit, 1);
|
---|
| 983 | }
|
---|
| 984 | }
|
---|
| 985 |
|
---|
| 986 |
|
---|
[1990] | 987 | void GvsPreprocessor::UpdatePvs(ViewCell *currentViewCell)
|
---|
| 988 | {
|
---|
| 989 | ObjectPvs newPvs;
|
---|
| 990 | BvhLeaf::NewMail();
|
---|
| 991 |
|
---|
| 992 | ObjectPvsIterator pit = currentViewCell->GetPvs().GetIterator();
|
---|
| 993 |
|
---|
| 994 | // output PVS of view cell
|
---|
| 995 | while (pit.HasMoreEntries())
|
---|
| 996 | {
|
---|
[2117] | 997 | Intersectable *intersect = pit.Next();
|
---|
[1990] | 998 |
|
---|
| 999 | BvhLeaf *bv = intersect->mBvhLeaf;
|
---|
| 1000 |
|
---|
| 1001 | if (!bv || bv->Mailed())
|
---|
| 1002 | continue;
|
---|
| 1003 |
|
---|
| 1004 | bv->Mail();
|
---|
| 1005 |
|
---|
| 1006 | //m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1007 | newPvs.AddSampleDirty(bv, 1.0f);
|
---|
[1982] | 1008 | }
|
---|
[1990] | 1009 |
|
---|
| 1010 | newPvs.SimpleSort();
|
---|
| 1011 |
|
---|
| 1012 | currentViewCell->SetPvs(newPvs);
|
---|
[1982] | 1013 | }
|
---|
| 1014 |
|
---|
[1999] | 1015 |
|
---|
| 1016 | void GvsPreprocessor::GetObjectPvs(ObjectContainer &objectPvs) const
|
---|
| 1017 | {
|
---|
[2695] | 1018 | BvhLeaf::NewMail();
|
---|
| 1019 |
|
---|
[2053] | 1020 | objectPvs.reserve((int)mTrianglePvs.size());
|
---|
| 1021 |
|
---|
[1999] | 1022 | ObjectContainer::const_iterator oit, oit_end = mTrianglePvs.end();
|
---|
| 1023 |
|
---|
| 1024 | for (oit = mTrianglePvs.begin(); oit != oit_end; ++ oit)
|
---|
| 1025 | {
|
---|
| 1026 | Intersectable *intersect = *oit;
|
---|
| 1027 |
|
---|
| 1028 | BvhLeaf *bv = intersect->mBvhLeaf;
|
---|
| 1029 |
|
---|
[2053] | 1030 | // hack: reset counter
|
---|
[2669] | 1031 | (*oit)->mCounter = NOT_ACCOUNTED_OBJECT;
|
---|
[2053] | 1032 |
|
---|
[1999] | 1033 | if (!bv || bv->Mailed())
|
---|
| 1034 | continue;
|
---|
[2615] | 1035 |
|
---|
[1999] | 1036 | bv->Mail();
|
---|
| 1037 | objectPvs.push_back(bv);
|
---|
| 1038 | }
|
---|
| 1039 | }
|
---|
| 1040 |
|
---|
| 1041 |
|
---|
[1990] | 1042 | void GvsPreprocessor::GlobalComputation()
|
---|
| 1043 | {
|
---|
| 1044 | int passSamples = 0;
|
---|
| 1045 | int oldContribution = 0;
|
---|
| 1046 |
|
---|
| 1047 | while (mGvsStats.mTotalSamples < mTotalSamples)
|
---|
| 1048 | {
|
---|
[2048] | 1049 | mRayCaster->InitPass();
|
---|
[2691] | 1050 |
|
---|
[1990] | 1051 | // Ray queue empty =>
|
---|
| 1052 | // cast a number of uniform samples to fill ray queue
|
---|
[2691] | 1053 | int newSamples = CastInitialSamples(mInitialSamples);
|
---|
[1990] | 1054 |
|
---|
| 1055 | if (!mOnlyRandomSampling)
|
---|
| 1056 | newSamples += ProcessQueue();
|
---|
| 1057 |
|
---|
| 1058 | passSamples += newSamples;
|
---|
| 1059 | mGvsStats.mTotalSamples += newSamples;
|
---|
| 1060 |
|
---|
[2048] | 1061 | if (passSamples % (mGvsSamplesPerPass + 1) == mGvsSamplesPerPass)
|
---|
[1990] | 1062 | {
|
---|
| 1063 | ++ mPass;
|
---|
| 1064 |
|
---|
| 1065 | mGvsStats.mPassContribution = mGvsStats.mTotalContribution - oldContribution;
|
---|
| 1066 |
|
---|
| 1067 | ////////
|
---|
| 1068 | //-- stats
|
---|
| 1069 |
|
---|
| 1070 | //cout << "\nPass " << mPass << " #samples: " << mGvsStats.mTotalSamples << " of " << mTotalSamples << endl;
|
---|
| 1071 | mGvsStats.mPass = mPass;
|
---|
| 1072 | mGvsStats.Stop();
|
---|
| 1073 | mGvsStats.Print(mGvsStatsStream);
|
---|
| 1074 |
|
---|
| 1075 | // reset
|
---|
| 1076 | oldContribution = mGvsStats.mTotalContribution;
|
---|
| 1077 | mGvsStats.mPassContribution = 0;
|
---|
| 1078 | passSamples = 0;
|
---|
| 1079 |
|
---|
| 1080 | if (GVS_DEBUG)
|
---|
| 1081 | VisualizeViewCells();
|
---|
| 1082 | }
|
---|
| 1083 | }
|
---|
| 1084 | }
|
---|
| 1085 |
|
---|
| 1086 |
|
---|
[1489] | 1087 | bool GvsPreprocessor::ComputeVisibility()
|
---|
[1460] | 1088 | {
|
---|
[1533] | 1089 | cout << "Gvs Preprocessor started\n" << flush;
|
---|
[1545] | 1090 | const long startTime = GetTime();
|
---|
[1533] | 1091 |
|
---|
[1990] | 1092 | //Randomize(0);
|
---|
[1934] | 1093 | mGvsStats.Reset();
|
---|
| 1094 | mGvsStats.Start();
|
---|
[1545] | 1095 |
|
---|
[1486] | 1096 | if (!mLoadViewCells)
|
---|
[1563] | 1097 | {
|
---|
| 1098 | /// construct the view cells from the scratch
|
---|
| 1099 | ConstructViewCells();
|
---|
[1580] | 1100 | // reset pvs already gathered during view cells construction
|
---|
| 1101 | mViewCellsManager->ResetPvs();
|
---|
[1563] | 1102 | cout << "finished view cell construction" << endl;
|
---|
[1486] | 1103 | }
|
---|
[1460] | 1104 |
|
---|
[1982] | 1105 | if (mPerViewCell)
|
---|
[1473] | 1106 | {
|
---|
[2648] | 1107 | #if 1
|
---|
[2597] | 1108 | // provide list of view cells to compute
|
---|
[1996] | 1109 | CompileViewCellsList();
|
---|
[2686] | 1110 |
|
---|
[2597] | 1111 | // start per view cell gvs
|
---|
[2048] | 1112 | PerViewCellComputation();
|
---|
[2625] | 1113 | #else
|
---|
| 1114 | PerViewCellComputation2();
|
---|
| 1115 |
|
---|
| 1116 | #endif
|
---|
[1460] | 1117 | }
|
---|
[1982] | 1118 | else
|
---|
| 1119 | {
|
---|
| 1120 | GlobalComputation();
|
---|
| 1121 | }
|
---|
[1460] | 1122 |
|
---|
[2687] | 1123 | cout << "cast " << mGvsStats.mTotalSamples / (1e3f * TimeDiff(startTime, GetTime())) << "M single rays/s" << endl;
|
---|
[1545] | 1124 |
|
---|
[1934] | 1125 | if (GVS_DEBUG)
|
---|
| 1126 | {
|
---|
| 1127 | Visualize();
|
---|
| 1128 | CLEAR_CONTAINER(mVssRays);
|
---|
| 1129 | }
|
---|
[2048] | 1130 |
|
---|
| 1131 | // export the preprocessed information to a file
|
---|
| 1132 | if (0 && mExportVisibility)
|
---|
| 1133 | {
|
---|
| 1134 | ExportPreprocessedData(mVisibilityFileName);
|
---|
| 1135 | }
|
---|
[2648] | 1136 |
|
---|
| 1137 | // compute the pixel error of this visibility solution
|
---|
| 1138 | if (mEvaluatePixelError)
|
---|
| 1139 | {
|
---|
| 1140 | ComputeRenderError();
|
---|
| 1141 | }
|
---|
[1934] | 1142 |
|
---|
[1473] | 1143 | return true;
|
---|
[1460] | 1144 | }
|
---|
| 1145 |
|
---|
[1522] | 1146 |
|
---|
[2048] | 1147 | void GvsPreprocessor::DeterminePvsObjects(VssRayContainer &rays)
|
---|
| 1148 | {
|
---|
[2187] | 1149 | // store triangle directly
|
---|
[2048] | 1150 | mViewCellsManager->DeterminePvsObjects(rays, true);
|
---|
| 1151 | }
|
---|
| 1152 |
|
---|
| 1153 |
|
---|
[1522] | 1154 | void GvsPreprocessor::Visualize()
|
---|
| 1155 | {
|
---|
| 1156 | Exporter *exporter = Exporter::GetExporter("gvs.wrl");
|
---|
| 1157 |
|
---|
| 1158 | if (!exporter)
|
---|
| 1159 | return;
|
---|
| 1160 |
|
---|
| 1161 | vector<VizStruct>::const_iterator vit, vit_end = vizContainer.end();
|
---|
[1999] | 1162 |
|
---|
[1522] | 1163 | for (vit = vizContainer.begin(); vit != vit_end; ++ vit)
|
---|
| 1164 | {
|
---|
[1524] | 1165 | exporter->SetWireframe();
|
---|
[1522] | 1166 | exporter->ExportPolygon((*vit).enlargedTriangle);
|
---|
| 1167 | //Material m;
|
---|
[1524] | 1168 | exporter->SetFilled();
|
---|
| 1169 | Polygon3 poly = Polygon3((*vit).originalTriangle);
|
---|
| 1170 | exporter->ExportPolygon(&poly);
|
---|
[1522] | 1171 | }
|
---|
| 1172 |
|
---|
[1933] | 1173 | VssRayContainer::const_iterator rit, rit_end = mVssRays.end();
|
---|
[1999] | 1174 |
|
---|
[1933] | 1175 | for (rit = mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 1176 | {
|
---|
| 1177 | Intersectable *obj = (*rit)->mTerminationObject;
|
---|
| 1178 | exporter->ExportIntersectable(obj);
|
---|
| 1179 | }
|
---|
| 1180 |
|
---|
[1990] | 1181 | ExportVssRays(exporter, mVssRays);
|
---|
| 1182 |
|
---|
[1522] | 1183 | delete exporter;
|
---|
[1460] | 1184 | }
|
---|
[1522] | 1185 |
|
---|
[1934] | 1186 |
|
---|
| 1187 | void GvsStatistics::Print(ostream &app) const
|
---|
| 1188 | {
|
---|
[2003] | 1189 | app << "#ViewCells\n" << mViewCells << endl;
|
---|
[2648] | 1190 | app << "#Id\n" << mViewCellId << endl;
|
---|
| 1191 | app << "#Time\n" << mTimePerViewCell << endl;;
|
---|
[2690] | 1192 | app << "#TriPvs\n" << mTrianglePvs << endl;
|
---|
[2648] | 1193 | app << "#ObjectPvs\n" << mPerViewCellPvs << endl;
|
---|
[2687] | 1194 | app << "#UpdatedPvs\n" << (int)mPvsCost << endl;
|
---|
[2003] | 1195 |
|
---|
[2677] | 1196 | app << "#PerViewCellSamples\n" << mPerViewCellSamples << endl;
|
---|
| 1197 | app << "#RaysPerSec\n" << RaysPerSec() << endl;
|
---|
| 1198 |
|
---|
[2003] | 1199 | app << "#TotalPvs\n" << mTotalPvs << endl;
|
---|
[2648] | 1200 | app << "#TotalTime\n" << mTotalTime << endl;
|
---|
[1934] | 1201 | app << "#TotalSamples\n" << mTotalSamples << endl;
|
---|
[2677] | 1202 |
|
---|
[2648] | 1203 | app << "#TotalTrianglePvs\n" << mTotalTrianglePvs << endl;
|
---|
| 1204 |
|
---|
[2677] | 1205 | if (0)
|
---|
| 1206 | {
|
---|
| 1207 | app << "#ReverseSamples\n" << mReverseSamples << endl;
|
---|
| 1208 | app << "#BorderSamples\n" << mBorderSamples << endl;
|
---|
[2648] | 1209 |
|
---|
[2677] | 1210 | app << "#Pass\n" << mPass << endl;
|
---|
| 1211 | app << "#ScDiff\n" << mPassContribution << endl;
|
---|
[2695] | 1212 | app << "#GvsRuns\n" << mGvsRuns << endl;
|
---|
[2003] | 1213 |
|
---|
[2677] | 1214 | app << "#SamplesContri\n" << mTotalContribution << endl;
|
---|
| 1215 | }
|
---|
[2003] | 1216 |
|
---|
| 1217 | app << endl;
|
---|
[1883] | 1218 | }
|
---|
[1934] | 1219 |
|
---|
| 1220 |
|
---|
[2690] | 1221 | void GvsPreprocessor::ComputeViewCell()
|
---|
[2625] | 1222 | {
|
---|
[2696] | 1223 | //if (mCurrentViewCell->GetId() != 499) return;
|
---|
[2695] | 1224 |
|
---|
| 1225 | // clean up
|
---|
| 1226 | mTrianglePvs.clear();
|
---|
| 1227 |
|
---|
[2691] | 1228 | mCurrentViewCell->GetMesh()->ComputeBoundingBox();
|
---|
| 1229 |
|
---|
[2643] | 1230 | KdNode::NewMail();
|
---|
[2625] | 1231 |
|
---|
[2670] | 1232 | const long startTime = GetTime();
|
---|
| 1233 |
|
---|
[2625] | 1234 | cout << "\n***********************\n"
|
---|
[2643] | 1235 | << "computing view cell " << mProcessedViewCells
|
---|
[2625] | 1236 | << " (id: " << mCurrentViewCell->GetId() << ")" << endl;
|
---|
[2691] | 1237 | cout << "bb: " << mCurrentViewCell->GetBox() << endl;
|
---|
[2625] | 1238 |
|
---|
[2690] | 1239 | mGvsStats.mPerViewCellSamples = 0;
|
---|
| 1240 |
|
---|
[2695] | 1241 | int oldContribution = 0;
|
---|
[2690] | 1242 | int passSamples = 0;
|
---|
[2695] | 1243 |
|
---|
[2691] | 1244 | for (int i = 0; i < 0; ++ i)
|
---|
| 1245 | mGenericStats[i] = 0;
|
---|
[2690] | 1246 |
|
---|
| 1247 | while (1)
|
---|
| 1248 | {
|
---|
[2691] | 1249 | int oldPvsSize = mCurrentViewCell->GetPvs().GetSize();
|
---|
[2695] | 1250 |
|
---|
[2690] | 1251 | mRayCaster->InitPass();
|
---|
| 1252 |
|
---|
| 1253 | // Ray queue empty =>
|
---|
| 1254 | // cast a number of uniform samples to fill ray queue
|
---|
[2691] | 1255 | int newSamples = CastInitialSamples(mInitialSamples);
|
---|
[2690] | 1256 |
|
---|
| 1257 | if (!mOnlyRandomSampling)
|
---|
| 1258 | {
|
---|
| 1259 | int samplesPerRun = ProcessQueue();
|
---|
| 1260 | newSamples += samplesPerRun;
|
---|
| 1261 | //if (samplesPerRun > 0) cout << "spr: " << samplesPerRun << " ";
|
---|
| 1262 | }
|
---|
| 1263 |
|
---|
| 1264 | passSamples += newSamples;
|
---|
| 1265 | mGvsStats.mPerViewCellSamples += newSamples;
|
---|
| 1266 |
|
---|
| 1267 | if (passSamples >= mGvsSamplesPerPass)
|
---|
| 1268 | {
|
---|
| 1269 | if (GVS_DEBUG) VisualizeViewCell(mTrianglePvs);
|
---|
| 1270 |
|
---|
[2691] | 1271 | //const bool convertPerPass = true;
|
---|
[2690] | 1272 | const bool convertPerPass = false;
|
---|
| 1273 |
|
---|
| 1274 | if (convertPerPass)
|
---|
| 1275 | {
|
---|
| 1276 | int newObjects = ConvertObjectPvs();
|
---|
| 1277 |
|
---|
| 1278 | cout << "added " << newObjects << " triangles to triangle pvs" << endl;
|
---|
| 1279 | mGvsStats.mTotalContribution += newObjects;
|
---|
| 1280 | }
|
---|
| 1281 |
|
---|
| 1282 | ++ mPass;
|
---|
| 1283 | mGvsStats.mPassContribution = mGvsStats.mTotalContribution - oldContribution;
|
---|
| 1284 |
|
---|
| 1285 |
|
---|
| 1286 | ////////
|
---|
| 1287 | //-- stats
|
---|
| 1288 |
|
---|
| 1289 | mGvsStats.mPass = mPass;
|
---|
| 1290 |
|
---|
| 1291 | cout << "\nPass " << mPass << " #samples: " << mGvsStats.mPerViewCellSamples << endl;
|
---|
| 1292 | cout << "contribution=" << mGvsStats.mPassContribution << " (of " << mMinContribution << ")" << endl;
|
---|
| 1293 | cout << "obj contri=" << mCurrentViewCell->GetPvs().GetSize() - oldPvsSize << " (of " << mMinContribution << ")" << endl;
|
---|
| 1294 |
|
---|
| 1295 | // termination criterium
|
---|
| 1296 | if (mGvsStats.mPassContribution < mMinContribution)
|
---|
| 1297 | break;
|
---|
| 1298 |
|
---|
[2695] | 1299 | // reset stats
|
---|
[2690] | 1300 | oldContribution = mGvsStats.mTotalContribution;
|
---|
| 1301 | mGvsStats.mPassContribution = 0;
|
---|
| 1302 | passSamples = 0;
|
---|
| 1303 | }
|
---|
| 1304 | }
|
---|
[2677] | 1305 |
|
---|
[2691] | 1306 | // at last compute objects that directly intersect view cell
|
---|
[2705] | 1307 | ComputeViewCellGeometryIntersection();
|
---|
[2690] | 1308 |
|
---|
| 1309 |
|
---|
[2677] | 1310 | ////////
|
---|
| 1311 | //-- stats
|
---|
[2625] | 1312 |
|
---|
[2690] | 1313 | // timing
|
---|
| 1314 | mGvsStats.mTimePerViewCell = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 1315 |
|
---|
| 1316 | ComputeStats();
|
---|
| 1317 | }
|
---|
| 1318 |
|
---|
| 1319 |
|
---|
| 1320 | void GvsPreprocessor::ComputeStats()
|
---|
| 1321 | {
|
---|
[2677] | 1322 | // compute pvs size using larger (bvh objects)
|
---|
| 1323 | // note: for kd pvs we had to do this during gvs computation
|
---|
| 1324 |
|
---|
[2625] | 1325 | if (!mUseKdPvs)
|
---|
| 1326 | {
|
---|
| 1327 | ObjectContainer objectPvs;
|
---|
| 1328 |
|
---|
| 1329 | // optain object pvs
|
---|
| 1330 | GetObjectPvs(objectPvs);
|
---|
| 1331 |
|
---|
| 1332 | // add pvs
|
---|
| 1333 | ObjectContainer::const_iterator it, it_end = objectPvs.end();
|
---|
| 1334 |
|
---|
| 1335 | for (it = objectPvs.begin(); it != it_end; ++ it)
|
---|
| 1336 | {
|
---|
| 1337 | mCurrentViewCell->GetPvs().AddSampleDirty(*it, 1.0f);
|
---|
| 1338 | }
|
---|
| 1339 |
|
---|
| 1340 | cout << "triangle pvs of " << (int)mTrianglePvs.size()
|
---|
| 1341 | << " was converted to object pvs of " << (int)objectPvs.size() << endl;
|
---|
| 1342 |
|
---|
| 1343 | mGvsStats.mPerViewCellPvs = (int)objectPvs.size();
|
---|
[2677] | 1344 | mGvsStats.mPvsCost = 0; // todo objectPvs.EvalPvsCost();
|
---|
[2625] | 1345 | }
|
---|
[2691] | 1346 | else if (0)
|
---|
[2625] | 1347 | {
|
---|
[2691] | 1348 | //KdNode::NewMail();
|
---|
| 1349 |
|
---|
| 1350 | // compute pvs kd nodes that intersect view cell
|
---|
| 1351 | ObjectContainer mykdobjects;
|
---|
| 1352 |
|
---|
| 1353 | // extract kd pvs
|
---|
| 1354 | ObjectContainer::const_iterator it, it_end = mTrianglePvs.end();
|
---|
| 1355 |
|
---|
| 1356 | for (it = mTrianglePvs.begin(); it != it_end; ++ it)
|
---|
| 1357 | {
|
---|
| 1358 | Intersectable *obj = *it;
|
---|
| 1359 | // find intersecting objects not yet in pvs (i.e., only unmailed)
|
---|
| 1360 | mKdTree->CollectKdObjects(obj->GetBox(), mykdobjects);
|
---|
| 1361 | }
|
---|
| 1362 |
|
---|
| 1363 | // add pvs
|
---|
| 1364 | it_end = mykdobjects.end();
|
---|
| 1365 |
|
---|
| 1366 | for (it = mykdobjects.begin(); it != it_end; ++ it)
|
---|
| 1367 | {
|
---|
| 1368 | mCurrentViewCell->GetPvs().AddSampleDirty(*it, 1.0f);
|
---|
| 1369 | }
|
---|
| 1370 |
|
---|
| 1371 | cout << "added " << (int)mykdobjects.size() << " new objects " << endl;
|
---|
| 1372 |
|
---|
[2643] | 1373 | mGvsStats.mPerViewCellPvs = mCurrentViewCell->GetPvs().GetSize();
|
---|
[2648] | 1374 | mGvsStats.mPvsCost = mCurrentViewCell->GetPvs().EvalPvsCost();
|
---|
[2643] | 1375 |
|
---|
[2625] | 1376 | }
|
---|
| 1377 |
|
---|
[2677] | 1378 | mGvsStats.mTrianglePvs = (int)mTrianglePvs.size();
|
---|
[2625] | 1379 |
|
---|
| 1380 |
|
---|
[2677] | 1381 | ////////////////
|
---|
| 1382 | // global values
|
---|
| 1383 |
|
---|
[2690] | 1384 | mGvsStats.mViewCells = mProcessedViewCells;
|
---|
[2677] | 1385 | mGvsStats.mTotalTrianglePvs += mGvsStats.mTrianglePvs;
|
---|
| 1386 | mGvsStats.mTotalTime += mGvsStats.mTimePerViewCell;
|
---|
| 1387 | mGvsStats.mTotalPvs += mGvsStats.mPerViewCellPvs;
|
---|
[2625] | 1388 | mGvsStats.mTotalSamples += mGvsStats.mPerViewCellSamples;
|
---|
| 1389 |
|
---|
| 1390 | mGvsStats.Stop();
|
---|
| 1391 | mGvsStats.Print(mGvsStatsStream);
|
---|
| 1392 |
|
---|
[2677] | 1393 | cout << "id: " << mCurrentViewCell->GetId() << " pvs cost: "
|
---|
[2690] | 1394 | << mGvsStats.mPvsCost << " pvs tri: " << mTrianglePvs.size() << endl;
|
---|
| 1395 | }
|
---|
[2677] | 1396 |
|
---|
| 1397 |
|
---|
[2690] | 1398 | ObjectContainer triangles;
|
---|
| 1399 |
|
---|
| 1400 | int GvsPreprocessor::ConvertObjectPvs()
|
---|
| 1401 | {
|
---|
| 1402 | int newObjects = 0;
|
---|
| 1403 |
|
---|
| 1404 | ObjectPvsIterator pit = mCurrentViewCell->GetPvs().GetIterator();
|
---|
| 1405 |
|
---|
| 1406 | triangles.clear();
|
---|
| 1407 |
|
---|
| 1408 | // output PVS of view cell
|
---|
| 1409 | while (pit.HasMoreEntries())
|
---|
| 1410 | {
|
---|
| 1411 | KdIntersectable *kdInt = static_cast<KdIntersectable *>(pit.Next());
|
---|
| 1412 |
|
---|
| 1413 | mKdTree->CollectObjectsWithDublicates(kdInt->GetItem(), triangles);
|
---|
| 1414 |
|
---|
| 1415 | ObjectContainer::const_iterator oit, oit_end = triangles.end();
|
---|
| 1416 |
|
---|
| 1417 | for (oit = triangles.begin(); oit != oit_end; ++ oit)
|
---|
| 1418 | {
|
---|
| 1419 | if (AddTriangleObject(*oit))
|
---|
| 1420 | ++ newObjects;
|
---|
| 1421 | }
|
---|
| 1422 | }
|
---|
| 1423 |
|
---|
| 1424 | return newObjects;
|
---|
[1934] | 1425 | }
|
---|
[2625] | 1426 |
|
---|
[2690] | 1427 |
|
---|
| 1428 | bool GvsPreprocessor::AddTriangleObject(Intersectable *triObj)
|
---|
| 1429 | {
|
---|
| 1430 | if ((triObj->mCounter < ACCOUNTED_OBJECT))
|
---|
| 1431 | {
|
---|
| 1432 | triObj->mCounter += ACCOUNTED_OBJECT;
|
---|
| 1433 |
|
---|
| 1434 | mTrianglePvs.push_back(triObj);
|
---|
[2695] | 1435 | //mDummyBuffer.push_back(mGvsStats.mGvsRuns);
|
---|
[2691] | 1436 | mGenericStats[0] = (int)mTrianglePvs.size();
|
---|
[2690] | 1437 | return true;
|
---|
| 1438 | }
|
---|
| 1439 |
|
---|
| 1440 | return false;
|
---|
[2625] | 1441 | }
|
---|
[2690] | 1442 |
|
---|
[2691] | 1443 |
|
---|
| 1444 |
|
---|
[2690] | 1445 | }
|
---|