[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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| 10 | #include "VspKdTree.h"
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| 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[440] | 17 |
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[517] | 18 |
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[532] | 19 |
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[440] | 20 | ViewCellsManager::ViewCellsManager():
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[480] | 21 | mRenderer(NULL),
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[440] | 22 | mConstructionSamples(0),
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| 23 | mPostProcessSamples(0),
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[470] | 24 | mVisualizationSamples(0),
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| 25 | mTotalAreaValid(false),
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[517] | 26 | mTotalArea(0.0f),
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[547] | 27 | mViewCellsFinished(false),
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| 28 | mMaxPvsSize(99999)
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[440] | 29 | {
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[542] | 30 | mViewSpaceBox.Initialize();
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[482] | 31 | ParseEnvironment();
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[440] | 32 | }
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| 33 |
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[517] | 34 |
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[440] | 35 | ViewCellsManager::ViewCellsManager(int constructionSamples):
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| 36 | mConstructionSamples(constructionSamples),
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[480] | 37 | mRenderer(NULL),
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[440] | 38 | mPostProcessSamples(0),
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[517] | 39 | mVisualizationSamples(0),
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| 40 | mViewCellsFinished(false)
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[440] | 41 | {
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[542] | 42 | mViewSpaceBox.Initialize();
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[482] | 43 | ParseEnvironment();
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| 44 | }
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| 45 |
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[517] | 46 |
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[482] | 47 | void ViewCellsManager::ParseEnvironment()
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| 48 | {
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[503] | 49 | // visualization stuff
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[485] | 50 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 51 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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[547] | 52 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[485] | 53 |
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[482] | 54 | char buf[50];
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[503] | 55 |
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[482] | 56 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
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[503] | 57 |
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[482] | 58 | if (strcmp(buf, "PVS") == 0)
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| 59 | mColorCode = 1;
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| 60 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 61 | mColorCode = 2;
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| 62 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 63 | mColorCode = 3;
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| 64 | else
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| 65 | mColorCode = 0;
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| 66 |
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| 67 | Debug << "colorCode: " << mColorCode << endl;
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[440] | 68 | }
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| 69 |
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[485] | 70 |
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[440] | 71 | ViewCellsManager::~ViewCellsManager()
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| 72 | {
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[480] | 73 | DEL_PTR(mRenderer);
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[469] | 74 | CLEAR_CONTAINER(mViewCells);
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[503] | 75 | CLEAR_CONTAINER(mMeshContainer);
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[440] | 76 | }
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| 77 |
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[485] | 78 |
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[527] | 79 | int ViewCellsManager::Construct(VssRayContainer &rays)
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| 80 | {
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[542] | 81 | /* VssPreprocessor preprocessor;
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[540] | 82 |
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[542] | 83 | VssRayContainer vssRays;
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| 84 | preprocessor->GenerateVssRays(mConstructionSamples, vssRays);
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| 85 | Construct(preprocessor->mObjects, vssRays);
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| 86 |
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| 87 | // add rays to output rays
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| 88 | while (!vssRays.empty)
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| 89 | {
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| 90 | rays.push_back(vssRays.back());
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| 91 | vssRays.pop_back();
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| 92 | }
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[540] | 93 |
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[542] | 94 | const int importanceRays = 1000000;
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| 95 | preprocessor->GenerateVssRays(max(importanceRays, mPostProcessSamples);
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[540] | 96 |
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[542] | 97 | PostProcess(preprocesor->mObjects, importanceRays);
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| 98 | Visualize(preprocessor->mObjects, importanceRays);
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| 99 |
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| 100 | // add rays to output rays
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| 101 | while (!importanceRays.empty)
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| 102 | {
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| 103 | rays.push_back(importanceRays.back());
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| 104 | importanceRays.pop_back();
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| 105 | }
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| 106 | */
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| 107 | return (int)rays.size();
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[527] | 108 | }
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| 109 |
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[547] | 110 |
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| 111 | bool ViewCellsManager::CheckValid(ViewCell *vc) const
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| 112 | {
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| 113 | if (vc->GetPvs().GetSize() > mMaxPvsSize)
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| 114 | return false;
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| 115 |
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| 116 | return true;
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| 117 | }
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| 118 |
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| 119 |
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[508] | 120 | bool ViewCellsManager::LoadViewCells(const string filename, ObjectContainer *objects)
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[440] | 121 | {
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| 122 | X3dParser parser;
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[503] | 123 |
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[440] | 124 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
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[503] | 125 |
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[440] | 126 | bool success = parser.ParseFile(filename, *this);
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| 127 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
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| 128 |
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| 129 | return success;
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| 130 | }
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| 131 |
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[485] | 132 |
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[487] | 133 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
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| 134 | {
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[542] | 135 | viewPoint = mViewSpaceBox.GetRandomPoint();
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[487] | 136 |
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| 137 | return true;
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| 138 | }
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| 139 |
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| 140 |
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[490] | 141 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
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| 142 | {
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[542] | 143 | return mViewSpaceBox.IsInside(viewPoint);
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[490] | 144 | }
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| 145 |
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[501] | 146 |
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[469] | 147 | void ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays)
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[440] | 148 | {
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[469] | 149 | // view cells not yet constructed
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| 150 | if (!ViewCellsConstructed())
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| 151 | return;
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[503] | 152 |
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[469] | 153 | VssRayContainer::const_iterator it, it_end = rays.end();
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[487] | 154 |
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[503] | 155 | for (it = rays.begin(); it != it_end; ++ it)
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| 156 | {
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[469] | 157 | ComputeSampleContributions(*(*it));
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| 158 | }
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[440] | 159 | }
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| 160 |
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[485] | 161 |
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[479] | 162 | void ViewCellsManager::EvaluateViewCellsStats()
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| 163 | {
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| 164 | mViewCellsStats.Reset();
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| 165 |
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| 166 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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| 167 |
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| 168 | for (it = mViewCells.begin(); it != it_end; ++ it)
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[487] | 169 | {
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[479] | 170 | (*it)->UpdateViewCellsStats(mViewCellsStats);
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[487] | 171 | }
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[479] | 172 | }
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| 173 |
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[485] | 174 |
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[440] | 175 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
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| 176 | {
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| 177 | mViewCells.push_back(viewCell);
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| 178 | }
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| 179 |
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[485] | 180 |
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[478] | 181 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
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| 182 | {
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| 183 | return viewCell->GetArea();
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| 184 | }
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| 185 |
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| 186 |
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| 187 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
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| 188 | {
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| 189 | return viewCell->GetVolume();
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| 190 | }
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| 191 |
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[485] | 192 |
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[503] | 193 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
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| 194 | ViewCellContainer &viewCells,
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[440] | 195 | const int maxViewCells) const
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| 196 | {
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| 197 | // maximal max viewcells
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[503] | 198 | int limit = maxViewCells > 0 ?
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[440] | 199 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
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| 200 |
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| 201 | for (int i = 0; i < limit; ++ i)
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| 202 | {
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| 203 | Intersectable *object = objects[i];
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[503] | 204 |
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[440] | 205 | // extract the mesh instances
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| 206 | if (object->Type() == Intersectable::MESH_INSTANCE)
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| 207 | {
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| 208 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
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| 209 |
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| 210 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
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| 211 | viewCells.push_back(viewCell);
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| 212 | }
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| 213 | //TODO: transformed meshes
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| 214 | }
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| 215 | }
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| 216 |
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[485] | 217 |
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[503] | 218 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
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[440] | 219 | const float height) const
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| 220 | {
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| 221 | // one mesh per view cell
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| 222 | Mesh *mesh = new Mesh();
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[503] | 223 |
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[440] | 224 | //-- construct prism
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| 225 |
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[503] | 226 | // bottom
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[440] | 227 | mesh->mFaces.push_back(new Face(2,1,0));
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| 228 | // top
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| 229 | mesh->mFaces.push_back(new Face(3,4,5));
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| 230 | // sides
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| 231 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
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| 232 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
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| 233 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
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| 234 |
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| 235 | //--- extrude new vertices for top of prism
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| 236 | Vector3 triNorm = baseTri.GetNormal();
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| 237 |
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[503] | 238 | Triangle3 topTri;
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[440] | 239 |
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| 240 | // add base vertices and calculate top vertices
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| 241 | for (int i = 0; i < 3; ++ i)
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| 242 | mesh->mVertices.push_back(baseTri.mVertices[i]);
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[503] | 243 |
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| 244 | // add top vertices
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[440] | 245 | for (int i = 0; i < 3; ++ i)
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| 246 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
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[503] | 247 |
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[440] | 248 | mesh->Preprocess();
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| 249 |
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| 250 | return GenerateViewCell(mesh);
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| 251 | }
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| 252 |
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[485] | 253 |
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[551] | 254 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
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| 255 | {
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| 256 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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| 257 | for (it = mViewCells.begin(); it != it_end; ++ it)
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| 258 | {
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| 259 | Finalize(*it, createMesh);
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| 260 | }
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| 261 | }
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| 262 |
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| 263 |
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| 264 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
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| 265 | {
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| 266 | // implemented in subclasses
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| 267 | }
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| 268 |
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| 269 |
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[441] | 270 | ViewCell *ViewCellsManager::MergeViewCells(ViewCell &front, ViewCell &back) const
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[440] | 271 | {
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[462] | 272 | // generate merged view cell
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[440] | 273 | ViewCell *vc = GenerateViewCell();
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[462] | 274 |
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[440] | 275 | // merge pvs
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| 276 | vc->GetPvs().Merge(front.GetPvs(), back.GetPvs());
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| 277 |
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[462] | 278 | //-- merge ray sets
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[440] | 279 | stable_sort(front.mPiercingRays.begin(), front.mPiercingRays.end());
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| 280 | stable_sort(back.mPiercingRays.begin(), back.mPiercingRays.end());
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| 281 |
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| 282 | std::merge(front.mPiercingRays.begin(), front.mPiercingRays.end(),
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[503] | 283 | back.mPiercingRays.begin(), back.mPiercingRays.end(),
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[440] | 284 | vc->mPiercingRays.begin());
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| 285 |
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| 286 | return vc;
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| 287 | }
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| 288 |
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[485] | 289 |
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[480] | 290 | void ViewCellsManager::SetRenderer(Renderer *renderer)
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| 291 | {
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| 292 | mRenderer = renderer;
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| 293 | }
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[441] | 294 |
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[485] | 295 |
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[440] | 296 | ViewCell *ViewCellsManager::GenerateViewCell(Mesh *mesh) const
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| 297 | {
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| 298 | return new ViewCell(mesh);
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| 299 | }
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| 300 |
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| 301 |
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| 302 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
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| 303 | {
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[444] | 304 | mVisualizationSamples = visSamples;
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[440] | 305 | }
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| 306 |
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[485] | 307 |
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[440] | 308 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
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| 309 | {
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| 310 | mConstructionSamples = constructionSamples;
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| 311 | }
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| 312 |
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[485] | 313 |
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[440] | 314 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
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| 315 | {
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| 316 | mPostProcessSamples = postProcessSamples;
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| 317 | }
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| 318 |
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[485] | 319 |
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[440] | 320 | int ViewCellsManager::GetVisualizationSamples() const
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| 321 | {
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| 322 | return mVisualizationSamples;
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| 323 | }
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| 324 |
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[485] | 325 |
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[440] | 326 | int ViewCellsManager::GetConstructionSamples() const
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| 327 | {
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| 328 | return mConstructionSamples;
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| 329 | }
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| 330 |
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[485] | 331 |
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[440] | 332 | int ViewCellsManager::GetPostProcessSamples() const
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| 333 | {
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| 334 | return mPostProcessSamples;
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| 335 | }
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| 336 |
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[485] | 337 |
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| 338 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
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[467] | 339 | {
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| 340 | ViewCellContainer::const_iterator it = mViewCells.begin();
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| 341 | stat.viewcells = 0;
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| 342 | stat.minPvs = 100000000;
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| 343 | stat.maxPvs = 0;
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| 344 | stat.avgPvs = 0.0f;
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| 345 |
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| 346 | for (; it != mViewCells.end(); ++it) {
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| 347 | ViewCell *viewcell = *it;
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| 348 | int pvsSize = viewcell->GetPvs().GetSize();
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| 349 | if ( pvsSize < stat.minPvs)
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| 350 | stat.minPvs = pvsSize;
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| 351 | if (pvsSize > stat.maxPvs)
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| 352 | stat.maxPvs = pvsSize;
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| 353 | stat.avgPvs += pvsSize;
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| 354 | stat.viewcells++;
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| 355 | }
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| 356 | if (stat.viewcells)
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| 357 | stat.avgPvs/=stat.viewcells;
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| 358 | }
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| 359 |
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[485] | 360 |
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[480] | 361 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
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[467] | 362 | {
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| 363 | s<<"############# Viewcell PVS STAT ##################\n";
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| 364 | PvsStatistics pvsStat;
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| 365 | GetPvsStatistics(pvsStat);
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| 366 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
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| 367 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
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| 368 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
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| 369 | }
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| 370 |
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[485] | 371 |
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[532] | 372 | int ViewCellsManager::CastBeam(Beam &beam)
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| 373 | {
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| 374 | return 0;
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| 375 | }
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| 376 |
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[547] | 377 |
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[468] | 378 | ViewCellContainer &ViewCellsManager::GetViewCells()
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| 379 | {
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| 380 | return mViewCells;
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| 381 | }
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| 382 |
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[485] | 383 |
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[487] | 384 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
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| 385 | {
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[542] | 386 | mViewSpaceBox = box;
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[487] | 387 | }
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| 388 |
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| 389 |
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[519] | 390 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
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| 391 | {
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[542] | 392 | return mViewSpaceBox;
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[519] | 393 | }
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| 394 |
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| 395 |
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[480] | 396 | void ViewCellsManager::ResetViewCells()
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| 397 | {
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| 398 | mViewCells.clear();
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[508] | 399 |
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[480] | 400 | CollectViewCells();
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[508] | 401 |
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[480] | 402 | mViewCellsStats.Reset();
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| 403 | EvaluateViewCellsStats();
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[520] | 404 | // has to be recomputed
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[480] | 405 | mTotalAreaValid = false;
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| 406 | }
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| 407 |
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[485] | 408 |
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[547] | 409 | int ViewCellsManager::GetMaxPvsSize() const
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| 410 | {
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| 411 | return mMaxPvsSize;
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| 412 | }
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| 413 |
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| 414 |
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[468] | 415 | void ViewCellsManager::ComputeSampleContributions(VssRay &ray)
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| 416 | {
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[542] | 417 | ViewCellContainer viewcells;
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[503] | 418 |
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[542] | 419 | ray.mPvsContribution = 0;
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| 420 | ray.mRelativePvsContribution = 0.0f;
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[485] | 421 |
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[542] | 422 | // matt TODO: remove this!!
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| 423 | Ray hray(ray);
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| 424 | float tmin = 0, tmax = 1.0;
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[519] | 425 |
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[542] | 426 | //hray.Init(ray.GetOrigin(), ray.GetDir(), Ray::LINE_SEGMENT);
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| 427 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
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[492] | 428 | return;
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[503] | 429 |
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[542] | 430 | Vector3 origin = hray.Extrap(tmin);
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| 431 | Vector3 termination = hray.Extrap(tmax);
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[503] | 432 |
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[542] | 433 | CastLineSegment(origin,
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| 434 | termination,
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| 435 | viewcells);
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| 436 | //Debug << "constribution: " << (int)viewcells.size() << endl;
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| 437 | // copy viewcells memory efficiently
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| 438 | const bool storeViewcells = false;
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| 439 | if (storeViewcells)
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| 440 | {
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| 441 | ray.mViewCells.reserve(viewcells.size());
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| 442 | ray.mViewCells = viewcells;
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| 443 | }
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[503] | 444 |
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[542] | 445 | ViewCellContainer::const_iterator it = viewcells.begin();
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[483] | 446 |
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[542] | 447 | bool addInPlace = false;
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[492] | 448 |
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[542] | 449 | if (addInPlace)
|
---|
| 450 | {
|
---|
| 451 | for (; it != viewcells.end(); ++it) {
|
---|
| 452 | ViewCell *viewcell = *it;
|
---|
[503] | 453 |
|
---|
[542] | 454 | // if ray not outside of view space
|
---|
| 455 | float contribution;
|
---|
| 456 | bool added =
|
---|
| 457 | viewcell->GetPvs().AddSample(ray.mTerminationObject,
|
---|
| 458 | contribution
|
---|
| 459 | );
|
---|
| 460 | if (added)
|
---|
| 461 | ray.mPvsContribution++;
|
---|
[503] | 462 |
|
---|
[542] | 463 | ray.mRelativePvsContribution += contribution;
|
---|
| 464 | }
|
---|
| 465 | }
|
---|
| 466 | else
|
---|
| 467 | {
|
---|
| 468 | for (; it != viewcells.end(); ++it) {
|
---|
| 469 | ViewCell *viewcell = *it;
|
---|
| 470 | // if ray not outside of view space
|
---|
| 471 | float contribution;
|
---|
| 472 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
| 473 | contribution
|
---|
| 474 | ))
|
---|
| 475 | ray.mPvsContribution++;
|
---|
| 476 | ray.mRelativePvsContribution += contribution;
|
---|
| 477 | }
|
---|
[503] | 478 |
|
---|
[542] | 479 | for (it = viewcells.begin(); it != viewcells.end(); ++it) {
|
---|
| 480 | ViewCell *viewcell = *it;
|
---|
| 481 | // if ray not outside of view space
|
---|
| 482 | viewcell->GetPvs().AddSample(ray.mTerminationObject);
|
---|
| 483 | }
|
---|
[492] | 484 | }
|
---|
[468] | 485 | }
|
---|
| 486 |
|
---|
| 487 |
|
---|
[469] | 488 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 489 | const int maxSize,
|
---|
[503] | 490 | VssRayContainer &usedRays,
|
---|
[485] | 491 | VssRayContainer *savedRays) const
|
---|
[469] | 492 | {
|
---|
[485] | 493 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 494 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 495 |
|
---|
[485] | 496 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 497 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 498 | {
|
---|
[473] | 499 | if (Random(1.0f) < prop)
|
---|
[485] | 500 | usedRays.push_back(*it);
|
---|
| 501 | else if (savedRays)
|
---|
| 502 | savedRays->push_back(*it);
|
---|
[469] | 503 | }
|
---|
| 504 | }
|
---|
| 505 |
|
---|
[477] | 506 |
|
---|
| 507 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 508 | {
|
---|
| 509 | // if already computed
|
---|
| 510 | if (mTotalAreaValid)
|
---|
| 511 | return mTotalArea;
|
---|
| 512 |
|
---|
| 513 | mTotalArea = 0;
|
---|
| 514 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 515 |
|
---|
| 516 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 517 | {
|
---|
| 518 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 519 | mTotalArea += GetArea(*it);
|
---|
[480] | 520 | }
|
---|
| 521 |
|
---|
[470] | 522 | mTotalAreaValid = true;
|
---|
| 523 |
|
---|
| 524 | return mTotalArea;
|
---|
| 525 | }
|
---|
| 526 |
|
---|
[482] | 527 |
|
---|
[475] | 528 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 529 | {
|
---|
| 530 | s << mViewCellsStats << endl;
|
---|
| 531 | }
|
---|
| 532 |
|
---|
[477] | 533 |
|
---|
[508] | 534 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 535 | {
|
---|
[508] | 536 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 537 | mViewCells[i]->SetId(i);
|
---|
| 538 | }
|
---|
| 539 |
|
---|
| 540 |
|
---|
| 541 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 542 | {
|
---|
[482] | 543 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 544 |
|
---|
| 545 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 546 | {
|
---|
| 547 | ExportColor(exporter, *it);
|
---|
[485] | 548 | ExportVcGeometry(exporter, *it);
|
---|
[482] | 549 | }
|
---|
| 550 | }
|
---|
| 551 |
|
---|
| 552 |
|
---|
[517] | 553 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 554 | {
|
---|
| 555 | // convert to meshes
|
---|
| 556 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 557 |
|
---|
| 558 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 559 | {
|
---|
[517] | 560 | if (!(*it)->GetMesh())
|
---|
| 561 | CreateMesh(*it);
|
---|
[503] | 562 | }
|
---|
| 563 | }
|
---|
| 564 |
|
---|
[508] | 565 |
|
---|
| 566 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
| 567 | {
|
---|
| 568 | return false;
|
---|
| 569 | }
|
---|
| 570 |
|
---|
| 571 |
|
---|
| 572 | void ViewCellsManager::ExportViewCell(ViewCell *viewCell, ofstream &stream)
|
---|
| 573 | {
|
---|
| 574 | stream << "<ViewCell id=\"" << viewCell->GetId() << "\" ";
|
---|
| 575 | stream << "pvs=\"";
|
---|
| 576 |
|
---|
| 577 | ObjectPvsMap::iterator it, it_end = viewCell->GetPvs().mEntries.end();
|
---|
| 578 | if(0) // test with empty pvs
|
---|
| 579 | for (it = viewCell->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
| 580 | {
|
---|
| 581 | stream << (*it).first->GetId() << " ";
|
---|
| 582 | }
|
---|
| 583 |
|
---|
| 584 | stream << "\" />" << endl;
|
---|
| 585 | }
|
---|
| 586 |
|
---|
| 587 |
|
---|
[440] | 588 | /**********************************************************************/
|
---|
| 589 | /* BspViewCellsManager implementation */
|
---|
| 590 | /**********************************************************************/
|
---|
| 591 |
|
---|
[482] | 592 |
|
---|
[503] | 593 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree,
|
---|
[469] | 594 | int constructionSamples):
|
---|
[503] | 595 | ViewCellsManager(constructionSamples),
|
---|
[440] | 596 | mBspTree(bspTree)
|
---|
| 597 | {
|
---|
| 598 | }
|
---|
| 599 |
|
---|
[462] | 600 |
|
---|
[440] | 601 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 602 | {
|
---|
| 603 | return mBspTree->GetRoot() != NULL;
|
---|
| 604 | }
|
---|
| 605 |
|
---|
[480] | 606 |
|
---|
[440] | 607 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 608 | {
|
---|
| 609 | return new BspViewCell(mesh);
|
---|
| 610 | }
|
---|
| 611 |
|
---|
[480] | 612 |
|
---|
[503] | 613 | int BspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
[487] | 614 | const VssRayContainer &rays)
|
---|
[440] | 615 | {
|
---|
[441] | 616 | // if view cells were already constructed
|
---|
[440] | 617 | if (ViewCellsConstructed())
|
---|
| 618 | return 0;
|
---|
| 619 |
|
---|
| 620 | int sampleContributions = 0;
|
---|
[503] | 621 |
|
---|
[469] | 622 | // construct view cells using the collected samples
|
---|
| 623 | RayContainer constructionRays;
|
---|
| 624 | VssRayContainer savedRays;
|
---|
[440] | 625 |
|
---|
[469] | 626 | const int limit = min(mConstructionSamples, (int)rays.size());
|
---|
[440] | 627 |
|
---|
[469] | 628 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 629 |
|
---|
[473] | 630 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 631 |
|
---|
[469] | 632 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 633 | {
|
---|
[473] | 634 | if (Random(1.0f) < prop)
|
---|
[469] | 635 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 636 | else
|
---|
| 637 | savedRays.push_back(*it);
|
---|
| 638 | }
|
---|
[440] | 639 |
|
---|
[503] | 640 | if (mViewCells.empty())
|
---|
| 641 | {
|
---|
| 642 | // no view cells loaded
|
---|
[469] | 643 | mBspTree->Construct(objects, constructionRays);
|
---|
| 644 | // collect final view cells
|
---|
| 645 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 646 | }
|
---|
[469] | 647 | else
|
---|
| 648 | {
|
---|
| 649 | mBspTree->Construct(mViewCells);
|
---|
| 650 | }
|
---|
| 651 |
|
---|
| 652 | // destroy rays created only for construction
|
---|
| 653 | CLEAR_CONTAINER(constructionRays);
|
---|
| 654 |
|
---|
[440] | 655 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 656 |
|
---|
| 657 | //EvaluateViewCellsStats();
|
---|
[480] | 658 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
| 659 |
|
---|
[469] | 660 | // recast rest of the rays
|
---|
| 661 | ComputeSampleContributions(savedRays);
|
---|
| 662 |
|
---|
[503] | 663 |
|
---|
[440] | 664 | return sampleContributions;
|
---|
| 665 | }
|
---|
| 666 |
|
---|
[503] | 667 |
|
---|
[480] | 668 | void BspViewCellsManager::CollectViewCells()
|
---|
| 669 | {
|
---|
| 670 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 671 | }
|
---|
[468] | 672 |
|
---|
[503] | 673 |
|
---|
[471] | 674 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 675 | {
|
---|
[471] | 676 | // compute view cell area as subsititute for probability
|
---|
[477] | 677 | #if 0
|
---|
[519] | 678 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
[477] | 679 | #else
|
---|
| 680 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 681 | #endif
|
---|
[466] | 682 | }
|
---|
[440] | 683 |
|
---|
[503] | 684 |
|
---|
[469] | 685 | float BspViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
[466] | 686 | {
|
---|
[468] | 687 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
[440] | 688 | }
|
---|
| 689 |
|
---|
[468] | 690 |
|
---|
| 691 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 692 | const Vector3 &termination,
|
---|
| 693 | ViewCellContainer &viewcells)
|
---|
[440] | 694 | {
|
---|
[468] | 695 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 696 | }
|
---|
| 697 |
|
---|
| 698 |
|
---|
[503] | 699 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 700 | const VssRayContainer &rays)
|
---|
| 701 | {
|
---|
[469] | 702 | if (!ViewCellsConstructed())
|
---|
[441] | 703 | {
|
---|
| 704 | Debug << "view cells not constructed" << endl;
|
---|
| 705 | return 0;
|
---|
| 706 | }
|
---|
| 707 |
|
---|
[440] | 708 | //-- post processing of bsp view cells
|
---|
| 709 | int vcSize = 0;
|
---|
| 710 | int pvsSize = 0;
|
---|
| 711 |
|
---|
[480] | 712 | EvaluateViewCellsStats();
|
---|
[485] | 713 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl;
|
---|
[480] | 714 |
|
---|
| 715 | mRenderer->RenderScene();
|
---|
| 716 | SimulationStatistics ss;
|
---|
| 717 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 718 |
|
---|
| 719 | Debug << ss << endl;
|
---|
| 720 |
|
---|
[477] | 721 | if (1) // export view cells
|
---|
[440] | 722 | {
|
---|
| 723 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
| 724 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
[503] | 725 |
|
---|
[440] | 726 | if (exporter)
|
---|
| 727 | {
|
---|
[477] | 728 | //exporter->SetWireframe();
|
---|
| 729 | exporter->SetFilled();
|
---|
[508] | 730 | ExportViewCellsForViz(exporter);
|
---|
[503] | 731 |
|
---|
[485] | 732 | if (mExportGeometry)
|
---|
[440] | 733 | {
|
---|
[477] | 734 | Material m;
|
---|
[440] | 735 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 736 | exporter->SetForcedMaterial(m);
|
---|
| 737 | exporter->SetWireframe();
|
---|
| 738 |
|
---|
| 739 | exporter->ExportGeometry(objects);
|
---|
| 740 | }
|
---|
| 741 |
|
---|
| 742 | delete exporter;
|
---|
| 743 | }
|
---|
| 744 | cout << "finished" << endl;
|
---|
| 745 | }
|
---|
| 746 |
|
---|
| 747 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
[503] | 748 |
|
---|
[440] | 749 | long startTime = GetTime();
|
---|
| 750 |
|
---|
[477] | 751 |
|
---|
[466] | 752 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
[485] | 753 | // perhaps we could recast the rays or remember the cells traversed inside the
|
---|
[466] | 754 | // vssray (which would on other hand create some overhead)
|
---|
[440] | 755 | //-- merge or subdivide view cells
|
---|
| 756 | int merged = 0;
|
---|
| 757 |
|
---|
[475] | 758 | vector<BspIntersection>::const_iterator iit;
|
---|
[485] | 759 | CLEAR_CONTAINER(mBspRays);
|
---|
| 760 | ConstructBspRays(rays, mPostProcessSamples);
|
---|
[503] | 761 |
|
---|
[477] | 762 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
[503] | 763 | {
|
---|
[477] | 764 | BspRay *ray = mBspRays[i];
|
---|
[503] | 765 |
|
---|
[440] | 766 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
| 767 | // leaves (i.e., the neighbors in the tree)
|
---|
[477] | 768 | if (ray->intersections.size() < 2)
|
---|
[440] | 769 | continue;
|
---|
[503] | 770 |
|
---|
[477] | 771 | iit = ray->intersections.begin();
|
---|
[440] | 772 |
|
---|
| 773 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
| 774 | ++ iit;
|
---|
[503] | 775 |
|
---|
[477] | 776 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
[440] | 777 | {
|
---|
| 778 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
| 779 |
|
---|
[441] | 780 | if (ShouldMerge(leaf, previousLeaf))
|
---|
[503] | 781 | {
|
---|
[441] | 782 | MergeBspLeafViewCells(leaf, previousLeaf);
|
---|
[440] | 783 |
|
---|
| 784 | ++ merged;
|
---|
| 785 | }
|
---|
[503] | 786 |
|
---|
[440] | 787 | previousLeaf = leaf;
|
---|
| 788 | }
|
---|
| 789 | }
|
---|
[477] | 790 |
|
---|
[440] | 791 | //-- stats and visualizations
|
---|
| 792 | cout << "finished" << endl;
|
---|
| 793 | cout << "merged " << merged << " view cells in "
|
---|
| 794 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 795 |
|
---|
[475] | 796 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
[503] | 797 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs"
|
---|
[485] | 798 | << "using " << (int)mBspRays.size() << " samples" << endl << endl;
|
---|
[503] | 799 |
|
---|
[485] | 800 | CLEAR_CONTAINER(mBspRays);
|
---|
| 801 |
|
---|
[477] | 802 | // reset view cells and stats
|
---|
[480] | 803 | ResetViewCells();
|
---|
[475] | 804 |
|
---|
[440] | 805 | return merged;
|
---|
| 806 | }
|
---|
| 807 |
|
---|
[477] | 808 |
|
---|
| 809 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 810 | {
|
---|
| 811 | CLEAR_CONTAINER(mBspRays);
|
---|
| 812 | }
|
---|
| 813 |
|
---|
| 814 |
|
---|
[440] | 815 | int BspViewCellsManager::GetType() const
|
---|
| 816 | {
|
---|
| 817 | return BSP;
|
---|
| 818 | }
|
---|
| 819 |
|
---|
| 820 |
|
---|
| 821 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 822 | const VssRayContainer &sampleRays)
|
---|
[440] | 823 | {
|
---|
[469] | 824 | if (!ViewCellsConstructed())
|
---|
| 825 | return;
|
---|
[485] | 826 | CLEAR_CONTAINER(mBspRays);
|
---|
| 827 | ConstructBspRays(sampleRays, mVisualizationSamples);
|
---|
[503] | 828 |
|
---|
[469] | 829 | if (1) // export view cells
|
---|
[440] | 830 | {
|
---|
[469] | 831 | cout << "exporting view cells after merge ... ";
|
---|
| 832 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
[477] | 833 |
|
---|
[469] | 834 | if (exporter)
|
---|
[440] | 835 | {
|
---|
[508] | 836 | ExportViewCellsForViz(exporter);
|
---|
[469] | 837 | delete exporter;
|
---|
[440] | 838 | }
|
---|
[503] | 839 |
|
---|
[469] | 840 | cout << "finished" << endl;
|
---|
[503] | 841 | }
|
---|
[477] | 842 |
|
---|
[469] | 843 | //-- visualization of the BSP splits
|
---|
| 844 | bool exportSplits = false;
|
---|
| 845 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 846 |
|
---|
[469] | 847 | if (exportSplits)
|
---|
[440] | 848 | {
|
---|
[469] | 849 | cout << "exporting splits ... ";
|
---|
[477] | 850 | ExportSplits(objects);
|
---|
[469] | 851 | cout << "finished" << endl;
|
---|
[440] | 852 | }
|
---|
[477] | 853 |
|
---|
| 854 | ExportBspPvs(objects);
|
---|
[440] | 855 | }
|
---|
| 856 |
|
---|
| 857 |
|
---|
[503] | 858 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
| 859 | {
|
---|
[440] | 860 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
| 861 | }
|
---|
| 862 |
|
---|
[477] | 863 |
|
---|
| 864 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 865 | {
|
---|
| 866 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 867 |
|
---|
[503] | 868 | if (exporter)
|
---|
| 869 | {
|
---|
| 870 | Material m;
|
---|
[440] | 871 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 872 | exporter->SetForcedMaterial(m);
|
---|
| 873 | exporter->SetWireframe();
|
---|
[503] | 874 |
|
---|
[440] | 875 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 876 |
|
---|
[482] | 877 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 878 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 879 | exporter->SetForcedMaterial(m);
|
---|
[482] | 880 | //exporter->ResetForcedMaterial();
|
---|
| 881 |
|
---|
[440] | 882 | exporter->SetFilled();
|
---|
[503] | 883 |
|
---|
[440] | 884 | // export rays
|
---|
[477] | 885 | if (0)
|
---|
[440] | 886 | {
|
---|
[469] | 887 | VssRayContainer outRays;
|
---|
[503] | 888 |
|
---|
[477] | 889 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
| 890 |
|
---|
[469] | 891 | for (int i = 0; i < raysSize; ++ i)
|
---|
| 892 | // only rays piercing geometry
|
---|
[477] | 893 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
[503] | 894 |
|
---|
| 895 | // export rays
|
---|
[469] | 896 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
[440] | 897 | }
|
---|
[477] | 898 |
|
---|
[485] | 899 | if (mExportGeometry)
|
---|
[469] | 900 | exporter->ExportGeometry(objects);
|
---|
[477] | 901 |
|
---|
[440] | 902 | delete exporter;
|
---|
| 903 | }
|
---|
| 904 | }
|
---|
| 905 |
|
---|
[477] | 906 |
|
---|
| 907 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 908 | {
|
---|
[477] | 909 | const int leafOut = 10;
|
---|
[503] | 910 |
|
---|
[477] | 911 | ViewCell::NewMail();
|
---|
[440] | 912 |
|
---|
[477] | 913 | //-- some rays for output
|
---|
| 914 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 915 |
|
---|
[477] | 916 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 917 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 918 |
|
---|
[478] | 919 | // sort view cells to get largest view cells
|
---|
| 920 | #if 0
|
---|
| 921 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
| 922 | #endif
|
---|
[503] | 923 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 924 |
|
---|
[478] | 925 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 926 | {
|
---|
[478] | 927 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 928 | VssRayContainer vcRays;
|
---|
| 929 | Intersectable::NewMail();
|
---|
| 930 | #if 0
|
---|
| 931 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
| 932 | #else
|
---|
| 933 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[Random((int)mViewCells.size())]);
|
---|
| 934 | #endif
|
---|
| 935 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 936 |
|
---|
[478] | 937 | #if 0
|
---|
| 938 | // check whether we can add the current ray to the output rays
|
---|
[503] | 939 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 940 | {
|
---|
[478] | 941 | BspRay *ray = mBspRays[k];
|
---|
| 942 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
[477] | 943 | {
|
---|
[478] | 944 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
[503] | 945 | if (vc == leaf->GetViewCell())
|
---|
[478] | 946 | vcRays.push_back(ray->vssRay);
|
---|
[477] | 947 | }
|
---|
| 948 | }
|
---|
[478] | 949 | #endif
|
---|
| 950 | //bspLeaves[j]->Mail();
|
---|
| 951 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 952 |
|
---|
[478] | 953 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 954 |
|
---|
[478] | 955 | exporter->SetWireframe();
|
---|
[477] | 956 |
|
---|
[478] | 957 | Material m;//= RandomMaterial();
|
---|
| 958 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 959 | exporter->SetForcedMaterial(m);
|
---|
[477] | 960 |
|
---|
[478] | 961 | if (vc->GetMesh())
|
---|
| 962 | exporter->ExportViewCell(vc);
|
---|
| 963 | else
|
---|
| 964 | {
|
---|
[503] | 965 | BspNodeGeometry vcGeom;
|
---|
| 966 |
|
---|
[478] | 967 | //-- export view cell
|
---|
| 968 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
[503] | 969 | exporter->ExportPolygons(vcGeom.mPolys);
|
---|
[478] | 970 | }
|
---|
[503] | 971 |
|
---|
| 972 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
[485] | 973 | << ", piercing rays=" << (int)vcRays.size()
|
---|
| 974 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
[477] | 975 |
|
---|
[503] | 976 |
|
---|
[478] | 977 | // export rays piercing this view cell
|
---|
| 978 | #if 0
|
---|
| 979 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
| 980 | #else
|
---|
| 981 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
| 982 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
| 983 | exporter->ExportRays((*lit)->mVssRays);
|
---|
| 984 | #endif
|
---|
| 985 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 986 | exporter->SetForcedMaterial(m);
|
---|
[440] | 987 |
|
---|
[478] | 988 | ObjectPvsMap::const_iterator it,
|
---|
| 989 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 990 |
|
---|
[478] | 991 | exporter->SetFilled();
|
---|
[469] | 992 |
|
---|
[478] | 993 | // output PVS of view cell
|
---|
[503] | 994 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 995 | {
|
---|
| 996 | Intersectable *intersect = (*it).first;
|
---|
[469] | 997 |
|
---|
[478] | 998 | if (!intersect->Mailed())
|
---|
| 999 | {
|
---|
| 1000 | Material m = RandomMaterial();
|
---|
| 1001 | exporter->SetForcedMaterial(m);
|
---|
| 1002 |
|
---|
| 1003 | exporter->ExportIntersectable(intersect);
|
---|
| 1004 | intersect->Mail();
|
---|
[503] | 1005 | }
|
---|
[477] | 1006 | }
|
---|
[503] | 1007 |
|
---|
[478] | 1008 | DEL_PTR(exporter);
|
---|
| 1009 | cout << "finished" << endl;
|
---|
[477] | 1010 | }
|
---|
| 1011 |
|
---|
| 1012 | Debug << endl;
|
---|
[440] | 1013 | }
|
---|
| 1014 |
|
---|
[441] | 1015 |
|
---|
[463] | 1016 | bool BspViewCellsManager::MergeBspLeafViewCells(BspLeaf *front, BspLeaf *back) const
|
---|
| 1017 | {
|
---|
[503] | 1018 | BspViewCell *viewCell =
|
---|
| 1019 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(),
|
---|
[478] | 1020 | *back->GetViewCell()));
|
---|
[503] | 1021 |
|
---|
[463] | 1022 | if (!viewCell)
|
---|
| 1023 | return false;
|
---|
| 1024 |
|
---|
| 1025 | //-- change pointer to view cells of all leaves associated with the previous view cells
|
---|
| 1026 | BspViewCell *fVc = front->GetViewCell();
|
---|
| 1027 | BspViewCell *bVc = back->GetViewCell();
|
---|
| 1028 |
|
---|
[469] | 1029 | vector<BspLeaf *> fLeaves = fVc->mLeaves;
|
---|
| 1030 | vector<BspLeaf *> bLeaves = bVc->mLeaves;
|
---|
[463] | 1031 |
|
---|
| 1032 | vector<BspLeaf *>::const_iterator it;
|
---|
[503] | 1033 |
|
---|
[463] | 1034 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
| 1035 | {
|
---|
| 1036 | (*it)->SetViewCell(viewCell);
|
---|
[469] | 1037 | viewCell->mLeaves.push_back(*it);
|
---|
[463] | 1038 | }
|
---|
| 1039 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
| 1040 | {
|
---|
| 1041 | (*it)->SetViewCell(viewCell);
|
---|
[469] | 1042 | viewCell->mLeaves.push_back(*it);
|
---|
[463] | 1043 | }
|
---|
[503] | 1044 |
|
---|
[463] | 1045 | DEL_PTR(fVc);
|
---|
| 1046 | DEL_PTR(bVc);
|
---|
| 1047 |
|
---|
| 1048 | return true;
|
---|
| 1049 | }
|
---|
| 1050 |
|
---|
| 1051 | bool BspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
| 1052 | {
|
---|
| 1053 | ViewCell *fvc = front->GetViewCell();
|
---|
| 1054 | ViewCell *bvc = back->GetViewCell();
|
---|
| 1055 |
|
---|
| 1056 | if ((fvc == mBspTree->GetRootCell()) || (bvc == mBspTree->GetRootCell()) || (fvc == bvc))
|
---|
| 1057 | return false;
|
---|
| 1058 |
|
---|
| 1059 | int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
| 1060 |
|
---|
| 1061 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
| 1062 | {
|
---|
[503] | 1063 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
[463] | 1064 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
| 1065 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
| 1066 | {
|
---|
| 1067 | return true;
|
---|
| 1068 | }
|
---|
| 1069 | }
|
---|
[503] | 1070 |
|
---|
[463] | 1071 | return false;
|
---|
| 1072 | }
|
---|
| 1073 |
|
---|
[441] | 1074 |
|
---|
[477] | 1075 | void BspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
| 1076 | const int numSamples)
|
---|
| 1077 | {
|
---|
| 1078 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[467] | 1079 |
|
---|
[477] | 1080 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
| 1081 | {
|
---|
| 1082 | VssRay *vssRay = *it;
|
---|
| 1083 | BspRay *ray = new BspRay(vssRay);
|
---|
| 1084 |
|
---|
| 1085 | ViewCellContainer viewCells;
|
---|
| 1086 |
|
---|
[483] | 1087 | // cast line segment to get intersections with bsp leaves
|
---|
[477] | 1088 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
| 1089 |
|
---|
| 1090 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
| 1091 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
| 1092 | {
|
---|
| 1093 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
| 1094 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
| 1095 | }
|
---|
| 1096 |
|
---|
| 1097 | mBspRays.push_back(ray);
|
---|
| 1098 | }
|
---|
| 1099 | }
|
---|
| 1100 |
|
---|
| 1101 |
|
---|
[503] | 1102 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 1103 | ViewCell *vc) const
|
---|
| 1104 | {
|
---|
| 1105 | if (mColorCode == 0) // Random color
|
---|
| 1106 | {
|
---|
| 1107 | exporter->ResetForcedMaterial();
|
---|
| 1108 | return;
|
---|
| 1109 | }
|
---|
| 1110 |
|
---|
| 1111 | float importance = 0;
|
---|
| 1112 |
|
---|
| 1113 | switch (mColorCode)
|
---|
| 1114 | {
|
---|
| 1115 | case 1: // pvs
|
---|
| 1116 | {
|
---|
[503] | 1117 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[482] | 1118 | (float)mViewCellsStats.maxPvs;
|
---|
| 1119 | }
|
---|
| 1120 | break;
|
---|
| 1121 | case 2: // merges
|
---|
| 1122 | {
|
---|
| 1123 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
| 1124 |
|
---|
[503] | 1125 | importance = (float)bspVc->mLeaves.size() /
|
---|
[482] | 1126 | (float)mViewCellsStats.maxLeaves;
|
---|
| 1127 | }
|
---|
| 1128 | break;
|
---|
| 1129 | case 3: // merge tree differene
|
---|
| 1130 | {
|
---|
| 1131 | // TODO
|
---|
| 1132 | }
|
---|
| 1133 | break;
|
---|
| 1134 | default:
|
---|
| 1135 | break;
|
---|
| 1136 | }
|
---|
| 1137 |
|
---|
| 1138 | Material m;
|
---|
| 1139 | m.mDiffuseColor.b = 1.0f;
|
---|
| 1140 | m.mDiffuseColor.r = importance;
|
---|
| 1141 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[503] | 1142 |
|
---|
[482] | 1143 | exporter->SetForcedMaterial(m);
|
---|
| 1144 | }
|
---|
| 1145 |
|
---|
[503] | 1146 | void BspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
[482] | 1147 | ViewCell *vc) const
|
---|
| 1148 | {
|
---|
| 1149 | if (vc->GetMesh())
|
---|
| 1150 | exporter->ExportViewCell(vc);
|
---|
| 1151 | else
|
---|
| 1152 | {
|
---|
[503] | 1153 | BspNodeGeometry geom;
|
---|
[485] | 1154 | mBspTree->ConstructGeometry(
|
---|
[503] | 1155 | dynamic_cast<BspViewCell *>(vc), geom);
|
---|
| 1156 | exporter->ExportPolygons(geom.mPolys);
|
---|
[482] | 1157 | }
|
---|
| 1158 | }
|
---|
| 1159 |
|
---|
[503] | 1160 |
|
---|
| 1161 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 1162 | {
|
---|
[551] | 1163 | // TODO
|
---|
[503] | 1164 | }
|
---|
| 1165 |
|
---|
[551] | 1166 |
|
---|
| 1167 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point)
|
---|
[502] | 1168 | {
|
---|
| 1169 | if (!mBspTree)
|
---|
| 1170 | return NULL;
|
---|
| 1171 | return mBspTree->GetViewCell(point);
|
---|
| 1172 | }
|
---|
| 1173 |
|
---|
[440] | 1174 | /**********************************************************************/
|
---|
| 1175 | /* KdViewCellsManager implementation */
|
---|
| 1176 | /**********************************************************************/
|
---|
| 1177 |
|
---|
[503] | 1178 |
|
---|
| 1179 |
|
---|
[440] | 1180 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
[469] | 1181 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 1182 | {
|
---|
| 1183 | }
|
---|
| 1184 |
|
---|
[471] | 1185 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 1186 | {
|
---|
[479] | 1187 | // compute view cell area / volume as subsititute for probability
|
---|
[477] | 1188 | #if 0
|
---|
[519] | 1189 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
[479] | 1190 | #endif
|
---|
| 1191 | #if 1
|
---|
[477] | 1192 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 1193 | #endif
|
---|
[479] | 1194 | #if 0
|
---|
[519] | 1195 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[479] | 1196 | #endif
|
---|
[468] | 1197 | }
|
---|
| 1198 |
|
---|
| 1199 |
|
---|
[469] | 1200 | float KdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
[468] | 1201 | {
|
---|
[469] | 1202 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
[468] | 1203 | }
|
---|
| 1204 |
|
---|
[479] | 1205 |
|
---|
[480] | 1206 | void KdViewCellsManager::CollectViewCells()
|
---|
| 1207 | {
|
---|
| 1208 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 1209 | }
|
---|
[479] | 1210 |
|
---|
[519] | 1211 |
|
---|
[503] | 1212 | int KdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
[487] | 1213 | const VssRayContainer &rays)
|
---|
[440] | 1214 | {
|
---|
[441] | 1215 | // if view cells already constructed
|
---|
[440] | 1216 | if (ViewCellsConstructed())
|
---|
| 1217 | return 0;
|
---|
[441] | 1218 |
|
---|
[440] | 1219 | mKdTree->Construct();
|
---|
| 1220 |
|
---|
[480] | 1221 | mTotalAreaValid = false;
|
---|
[469] | 1222 | // create the view cells
|
---|
| 1223 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 1224 |
|
---|
[480] | 1225 | // cast rays
|
---|
| 1226 | ComputeSampleContributions(rays);
|
---|
| 1227 |
|
---|
[479] | 1228 | EvaluateViewCellsStats();
|
---|
[480] | 1229 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
[469] | 1230 |
|
---|
[440] | 1231 | return 0;
|
---|
| 1232 | }
|
---|
| 1233 |
|
---|
| 1234 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 1235 | {
|
---|
| 1236 | return mKdTree->GetRoot() != NULL;
|
---|
| 1237 | }
|
---|
| 1238 |
|
---|
[503] | 1239 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1240 | const VssRayContainer &rays)
|
---|
[440] | 1241 | {
|
---|
| 1242 | return 0;
|
---|
| 1243 | }
|
---|
| 1244 |
|
---|
| 1245 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 1246 | const VssRayContainer &sampleRays)
|
---|
[440] | 1247 | {
|
---|
[441] | 1248 | if (!ViewCellsConstructed())
|
---|
| 1249 | return;
|
---|
| 1250 |
|
---|
[469] | 1251 | // using view cells instead of the kd PVS of objects
|
---|
| 1252 | const bool useViewCells = true;
|
---|
| 1253 | bool exportRays = false;
|
---|
[440] | 1254 |
|
---|
| 1255 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 1256 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 1257 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 1258 |
|
---|
[469] | 1259 | if (useViewCells)
|
---|
[440] | 1260 | {
|
---|
[469] | 1261 | const int leafOut = 10;
|
---|
[503] | 1262 |
|
---|
[469] | 1263 | ViewCell::NewMail();
|
---|
[503] | 1264 |
|
---|
[469] | 1265 | //-- some rays for output
|
---|
| 1266 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 1267 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 1268 |
|
---|
| 1269 | //-- some random view cells and rays for output
|
---|
| 1270 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 1271 |
|
---|
[469] | 1272 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 1273 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 1274 |
|
---|
[469] | 1275 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 1276 | {
|
---|
[469] | 1277 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 1278 | RayContainer vcRays;
|
---|
[503] | 1279 |
|
---|
[469] | 1280 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 1281 | #if 0
|
---|
[469] | 1282 | // check whether we can add the current ray to the output rays
|
---|
[503] | 1283 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 1284 | {
|
---|
[469] | 1285 | Ray *ray = sampleRays[k];
|
---|
[503] | 1286 |
|
---|
[469] | 1287 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 1288 | {
|
---|
| 1289 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 1290 |
|
---|
| 1291 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 1292 | {
|
---|
| 1293 | vcRays.push_back(ray);
|
---|
| 1294 | }
|
---|
| 1295 | }
|
---|
[479] | 1296 | }
|
---|
[503] | 1297 | #endif
|
---|
[469] | 1298 | Intersectable::NewMail();
|
---|
[503] | 1299 |
|
---|
[469] | 1300 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 1301 |
|
---|
[469] | 1302 | //bspLeaves[j]->Mail();
|
---|
| 1303 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 1304 |
|
---|
[469] | 1305 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 1306 | exporter->SetFilled();
|
---|
| 1307 |
|
---|
| 1308 | exporter->SetWireframe();
|
---|
| 1309 | //exporter->SetFilled();
|
---|
[503] | 1310 |
|
---|
[469] | 1311 | Material m;//= RandomMaterial();
|
---|
| 1312 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 1313 | exporter->SetForcedMaterial(m);
|
---|
[503] | 1314 |
|
---|
[469] | 1315 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 1316 | exporter->ExportBox(box);
|
---|
| 1317 |
|
---|
[503] | 1318 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
[469] | 1319 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
[503] | 1320 |
|
---|
[469] | 1321 | // export rays piercing this view cell
|
---|
[503] | 1322 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 1323 |
|
---|
[469] | 1324 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1325 | exporter->SetForcedMaterial(m);
|
---|
[503] | 1326 |
|
---|
[469] | 1327 | // exporter->SetWireframe();
|
---|
| 1328 | exporter->SetFilled();
|
---|
[503] | 1329 |
|
---|
[469] | 1330 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
| 1331 | // output PVS of view cell
|
---|
[503] | 1332 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 1333 | {
|
---|
| 1334 | Intersectable *intersect = (*it).first;
|
---|
| 1335 | if (!intersect->Mailed())
|
---|
| 1336 | {
|
---|
| 1337 | exporter->ExportIntersectable(intersect);
|
---|
| 1338 | intersect->Mail();
|
---|
[503] | 1339 | }
|
---|
[440] | 1340 | }
|
---|
[503] | 1341 |
|
---|
[469] | 1342 | DEL_PTR(exporter);
|
---|
| 1343 | cout << "finished" << endl;
|
---|
[440] | 1344 | }
|
---|
[469] | 1345 |
|
---|
| 1346 | DEL_PTR(rays);
|
---|
[440] | 1347 | }
|
---|
[469] | 1348 | else // using kd PVS of objects
|
---|
| 1349 | {
|
---|
| 1350 | for (int i = 0; i < limit; ++ i)
|
---|
| 1351 | {
|
---|
| 1352 | VssRay *ray = sampleRays[i];
|
---|
[503] | 1353 |
|
---|
[469] | 1354 | // check whether we can add this to the rays
|
---|
[503] | 1355 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 1356 | {
|
---|
| 1357 | if (objects[j] == ray->mTerminationObject)
|
---|
| 1358 | {
|
---|
| 1359 | rays[j].push_back(ray);
|
---|
| 1360 | }
|
---|
| 1361 | }
|
---|
| 1362 | }
|
---|
[440] | 1363 |
|
---|
[503] | 1364 | if (exportRays)
|
---|
[469] | 1365 | {
|
---|
| 1366 | Exporter *exporter = NULL;
|
---|
| 1367 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 1368 | exporter->SetWireframe();
|
---|
| 1369 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 1370 |
|
---|
| 1371 | for (i=0; i < pvsOut; i++)
|
---|
[469] | 1372 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 1373 |
|
---|
| 1374 | exporter->SetFilled();
|
---|
[503] | 1375 |
|
---|
[469] | 1376 | delete exporter;
|
---|
| 1377 | }
|
---|
[440] | 1378 |
|
---|
[503] | 1379 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 1380 | {
|
---|
| 1381 | Intersectable *object = objects[k];
|
---|
[503] | 1382 | char s[64];
|
---|
[469] | 1383 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 1384 |
|
---|
[469] | 1385 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 1386 | exporter->SetWireframe();
|
---|
[503] | 1387 |
|
---|
[469] | 1388 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 1389 | Intersectable::NewMail();
|
---|
[503] | 1390 |
|
---|
[469] | 1391 | // avoid adding the object to the list
|
---|
| 1392 | object->Mail();
|
---|
| 1393 | ObjectContainer visibleObjects;
|
---|
[503] | 1394 |
|
---|
| 1395 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 1396 | {
|
---|
| 1397 | KdNode *node = (*i).first;
|
---|
| 1398 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 1399 |
|
---|
[469] | 1400 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 1401 | }
|
---|
[503] | 1402 |
|
---|
[469] | 1403 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 1404 | exporter->SetFilled();
|
---|
[503] | 1405 |
|
---|
[469] | 1406 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 1407 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 1408 |
|
---|
[469] | 1409 | Material m;
|
---|
| 1410 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1411 | exporter->SetForcedMaterial(m);
|
---|
| 1412 | exporter->ExportIntersectable(object);
|
---|
[503] | 1413 |
|
---|
[469] | 1414 | delete exporter;
|
---|
[440] | 1415 | }
|
---|
[503] | 1416 | }
|
---|
[440] | 1417 | }
|
---|
| 1418 |
|
---|
[469] | 1419 |
|
---|
[482] | 1420 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 1421 | ViewCell *vc) const
|
---|
| 1422 | {
|
---|
| 1423 | // TODO
|
---|
| 1424 | }
|
---|
| 1425 |
|
---|
| 1426 |
|
---|
[503] | 1427 | void KdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
[485] | 1428 | ViewCell *vc) const
|
---|
[482] | 1429 | {
|
---|
[485] | 1430 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(vc);
|
---|
| 1431 | vector<KdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
| 1432 |
|
---|
| 1433 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
| 1434 | exporter->ExportBox(mKdTree->GetBox(*it));
|
---|
[482] | 1435 | }
|
---|
| 1436 |
|
---|
| 1437 |
|
---|
[440] | 1438 | int KdViewCellsManager::GetType() const
|
---|
| 1439 | {
|
---|
| 1440 | return ViewCellsManager::KD;
|
---|
| 1441 | }
|
---|
| 1442 |
|
---|
| 1443 |
|
---|
[441] | 1444 |
|
---|
[440] | 1445 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 1446 | {
|
---|
| 1447 | KdNode *node = leaf;
|
---|
| 1448 |
|
---|
| 1449 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 1450 | node = node->mParent;
|
---|
| 1451 | return node;
|
---|
| 1452 | }
|
---|
| 1453 |
|
---|
[469] | 1454 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 1455 | const Vector3 &termination,
|
---|
| 1456 | ViewCellContainer &viewcells)
|
---|
[466] | 1457 | {
|
---|
[469] | 1458 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 1459 | }
|
---|
| 1460 |
|
---|
[469] | 1461 |
|
---|
[503] | 1462 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 1463 | {
|
---|
[551] | 1464 | // TODO
|
---|
[503] | 1465 | }
|
---|
| 1466 |
|
---|
[440] | 1467 | /**********************************************************************/
|
---|
| 1468 | /* VspKdViewCellsManager implementation */
|
---|
| 1469 | /**********************************************************************/
|
---|
| 1470 |
|
---|
[482] | 1471 |
|
---|
[503] | 1472 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree,
|
---|
[462] | 1473 | int constructionSamples):
|
---|
[503] | 1474 | ViewCellsManager(constructionSamples),
|
---|
[440] | 1475 | mVspKdTree(vspKdTree)
|
---|
| 1476 | {
|
---|
[468] | 1477 | mVspKdTree->SetViewCellsManager(this);
|
---|
| 1478 | }
|
---|
[462] | 1479 |
|
---|
[471] | 1480 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 1481 | {
|
---|
| 1482 | // volume or area substitutes for view point probability
|
---|
[480] | 1483 | #if 0
|
---|
[519] | 1484 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
[480] | 1485 | #else
|
---|
| 1486 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 1487 | #endif
|
---|
[440] | 1488 | }
|
---|
| 1489 |
|
---|
[462] | 1490 |
|
---|
[469] | 1491 | float VspKdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
[468] | 1492 | {
|
---|
[469] | 1493 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
[468] | 1494 | }
|
---|
| 1495 |
|
---|
[503] | 1496 |
|
---|
[480] | 1497 | void VspKdViewCellsManager::CollectViewCells()
|
---|
| 1498 | {
|
---|
| 1499 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
| 1500 | }
|
---|
[462] | 1501 |
|
---|
[503] | 1502 | int VspKdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
[487] | 1503 | const VssRayContainer &rays)
|
---|
[440] | 1504 | {
|
---|
[441] | 1505 | // if view cells already constructed
|
---|
[440] | 1506 | if (ViewCellsConstructed())
|
---|
| 1507 | return 0;
|
---|
[503] | 1508 |
|
---|
[469] | 1509 | VssRayContainer constructionRays;
|
---|
| 1510 | VssRayContainer savedRays;
|
---|
[440] | 1511 |
|
---|
[503] | 1512 | GetRaySets(rays,
|
---|
| 1513 | mConstructionSamples,
|
---|
| 1514 | constructionRays,
|
---|
[485] | 1515 | &savedRays);
|
---|
[503] | 1516 |
|
---|
| 1517 | Debug << "constructing vsp kd tree using "
|
---|
[469] | 1518 | << (int)constructionRays.size() << " samples" << endl;
|
---|
[452] | 1519 |
|
---|
[542] | 1520 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[452] | 1521 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
| 1522 |
|
---|
[482] | 1523 | // export leaf building blocks
|
---|
| 1524 | ExportLeaves(objects, rays);
|
---|
[480] | 1525 |
|
---|
[469] | 1526 | // finally merge kd leaf building blocks to view cells
|
---|
[485] | 1527 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
| 1528 |
|
---|
| 1529 | // collapse siblings belonging to the same view cell
|
---|
[486] | 1530 | mVspKdTree->RefineViewCells(rays);
|
---|
[485] | 1531 |
|
---|
[542] | 1532 | // collapse siblings belonging to the same view cell
|
---|
[503] | 1533 | mVspKdTree->CollapseTree();
|
---|
| 1534 |
|
---|
[482] | 1535 | // evaluale view cell stats
|
---|
| 1536 | ResetViewCells();
|
---|
[469] | 1537 |
|
---|
[482] | 1538 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
| 1539 |
|
---|
[485] | 1540 | long startTime = GetTime();
|
---|
[469] | 1541 | // recast rest of rays
|
---|
| 1542 | ComputeSampleContributions(savedRays);
|
---|
[503] | 1543 |
|
---|
| 1544 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 1545 | << " secs" << endl;
|
---|
[469] | 1546 |
|
---|
| 1547 | return merged;
|
---|
[440] | 1548 | }
|
---|
| 1549 |
|
---|
| 1550 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
| 1551 | {
|
---|
| 1552 | return mVspKdTree->GetRoot() != NULL;
|
---|
| 1553 | }
|
---|
| 1554 |
|
---|
[441] | 1555 |
|
---|
[462] | 1556 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 1557 | {
|
---|
| 1558 | return new VspKdViewCell(mesh);
|
---|
| 1559 | }
|
---|
| 1560 |
|
---|
[503] | 1561 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1562 | const VssRayContainer &rays)
|
---|
[440] | 1563 | {
|
---|
[441] | 1564 | if (!ViewCellsConstructed())
|
---|
| 1565 | return 0;
|
---|
| 1566 |
|
---|
[482] | 1567 | // recalculate stats
|
---|
| 1568 | EvaluateViewCellsStats();
|
---|
| 1569 |
|
---|
[469] | 1570 | return 0;
|
---|
[440] | 1571 | }
|
---|
| 1572 |
|
---|
[482] | 1573 |
|
---|
| 1574 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
| 1575 | const VssRayContainer &sampleRays)
|
---|
[440] | 1576 | {
|
---|
[441] | 1577 | if (!ViewCellsConstructed())
|
---|
| 1578 | return;
|
---|
| 1579 |
|
---|
[482] | 1580 | //-- export leaf building blocks
|
---|
[503] | 1581 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
[482] | 1582 | if (!exporter)
|
---|
| 1583 | return;
|
---|
| 1584 |
|
---|
| 1585 | //exporter->SetWireframe();
|
---|
| 1586 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
| 1587 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
| 1588 |
|
---|
[503] | 1589 | if (mExportGeometry)
|
---|
[482] | 1590 | exporter->ExportGeometry(objects);
|
---|
| 1591 |
|
---|
[503] | 1592 | if (mExportRays)
|
---|
[440] | 1593 | {
|
---|
[503] | 1594 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 1595 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[440] | 1596 |
|
---|
[482] | 1597 | exporter->SetWireframe();
|
---|
[440] | 1598 |
|
---|
[482] | 1599 | //-- collect uniformly distributed rays
|
---|
| 1600 | VssRayContainer rays;
|
---|
[440] | 1601 |
|
---|
[482] | 1602 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 1603 | {
|
---|
| 1604 | if (RandomValue(0,1) < prob)
|
---|
| 1605 | rays.push_back(sampleRays[i]);
|
---|
[440] | 1606 | }
|
---|
[482] | 1607 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[440] | 1608 | }
|
---|
| 1609 |
|
---|
[482] | 1610 | delete exporter;
|
---|
| 1611 | }
|
---|
| 1612 |
|
---|
| 1613 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 1614 | const VssRayContainer &sampleRays)
|
---|
| 1615 | {
|
---|
| 1616 | if (!ViewCellsConstructed())
|
---|
| 1617 | return;
|
---|
[503] | 1618 |
|
---|
[482] | 1619 | //-- export single view cells
|
---|
| 1620 | for (int i = 0; i < 10; ++ i)
|
---|
[440] | 1621 | {
|
---|
[482] | 1622 | char s[64];
|
---|
| 1623 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
| 1624 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 1625 | const int idx =
|
---|
[482] | 1626 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
[440] | 1627 |
|
---|
[503] | 1628 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
[482] | 1629 |
|
---|
[483] | 1630 | cout << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
| 1631 | Debug << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
[482] | 1632 | //-- export geometry
|
---|
| 1633 | Material m;
|
---|
| 1634 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
[503] | 1635 |
|
---|
[482] | 1636 | exporter->SetForcedMaterial(m);
|
---|
| 1637 | exporter->SetWireframe();
|
---|
| 1638 |
|
---|
[485] | 1639 | ExportVcGeometry(exporter, vc);
|
---|
[482] | 1640 |
|
---|
| 1641 | //-- export stored rays
|
---|
[485] | 1642 | if (mExportRays)
|
---|
[440] | 1643 | {
|
---|
[503] | 1644 | vector<VspKdLeaf *>::const_iterator it,
|
---|
[482] | 1645 | it_end = vc->mLeaves.end();
|
---|
[440] | 1646 |
|
---|
[482] | 1647 | for (it = vc->mLeaves.begin(); it != it_end; ++ it)
|
---|
| 1648 | {
|
---|
| 1649 | VspKdLeaf *leaf = *it;
|
---|
| 1650 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
[440] | 1651 |
|
---|
[482] | 1652 | VssRayContainer vssRays;
|
---|
[483] | 1653 |
|
---|
| 1654 | VssRayContainer castRays;
|
---|
| 1655 | VssRayContainer initRays;
|
---|
| 1656 |
|
---|
[482] | 1657 | leaf->GetRays(vssRays);
|
---|
[440] | 1658 |
|
---|
[482] | 1659 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
[483] | 1660 | const float prop = 200.0f / (float)vssRays.size();
|
---|
[440] | 1661 |
|
---|
[482] | 1662 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
[483] | 1663 | {
|
---|
[485] | 1664 | if (Random(1) < prop)
|
---|
[483] | 1665 | if ((*it)->mTerminationObject == NULL)
|
---|
| 1666 | castRays.push_back(*it);
|
---|
[503] | 1667 | else
|
---|
[483] | 1668 | initRays.push_back(*it);
|
---|
| 1669 | }
|
---|
| 1670 |
|
---|
| 1671 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
| 1672 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
[482] | 1673 | }
|
---|
| 1674 | }
|
---|
[440] | 1675 |
|
---|
[482] | 1676 | //-- output PVS of view cell
|
---|
| 1677 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 1678 | exporter->SetForcedMaterial(m);
|
---|
[440] | 1679 |
|
---|
[483] | 1680 | Intersectable::NewMail();
|
---|
| 1681 |
|
---|
[482] | 1682 | ObjectPvsMap::const_iterator it,
|
---|
| 1683 | it_end = vc->GetPvs().mEntries.end();
|
---|
| 1684 |
|
---|
| 1685 | exporter->SetFilled();
|
---|
| 1686 |
|
---|
[503] | 1687 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[482] | 1688 | {
|
---|
| 1689 | Intersectable *intersect = (*it).first;
|
---|
| 1690 |
|
---|
| 1691 | if (!intersect->Mailed())
|
---|
| 1692 | {
|
---|
| 1693 | Material m = RandomMaterial();
|
---|
| 1694 | exporter->SetForcedMaterial(m);
|
---|
| 1695 |
|
---|
| 1696 | exporter->ExportIntersectable(intersect);
|
---|
| 1697 | intersect->Mail();
|
---|
[503] | 1698 | }
|
---|
[482] | 1699 | }
|
---|
| 1700 |
|
---|
| 1701 | delete exporter;
|
---|
[440] | 1702 | }
|
---|
[462] | 1703 |
|
---|
| 1704 | //-- export final view cells
|
---|
[503] | 1705 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
| 1706 |
|
---|
[485] | 1707 | //if (exportGeometry) exporter->SetWireframe();
|
---|
| 1708 | //else exporter->SetFilled();
|
---|
[483] | 1709 |
|
---|
[508] | 1710 | ExportViewCellsForViz(exporter);
|
---|
[462] | 1711 |
|
---|
[503] | 1712 | if (mExportGeometry)
|
---|
[465] | 1713 | {
|
---|
| 1714 | exporter->SetFilled();
|
---|
[462] | 1715 | exporter->ExportGeometry(objects);
|
---|
[465] | 1716 | }
|
---|
[469] | 1717 |
|
---|
[503] | 1718 | if (mExportRays)
|
---|
[462] | 1719 | {
|
---|
[503] | 1720 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 1721 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[503] | 1722 |
|
---|
[462] | 1723 | exporter->SetWireframe();
|
---|
[503] | 1724 |
|
---|
[466] | 1725 | VssRayContainer rays;
|
---|
[503] | 1726 |
|
---|
[462] | 1727 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 1728 | {
|
---|
[466] | 1729 | if (RandomValue(0,1) < prob)
|
---|
| 1730 | rays.push_back(sampleRays[i]);
|
---|
[462] | 1731 | }
|
---|
[503] | 1732 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[462] | 1733 | }
|
---|
| 1734 |
|
---|
| 1735 | delete exporter;
|
---|
[440] | 1736 | }
|
---|
| 1737 |
|
---|
| 1738 | int VspKdViewCellsManager::GetType() const
|
---|
| 1739 | {
|
---|
| 1740 | return VSP_KD;
|
---|
| 1741 | }
|
---|
[442] | 1742 |
|
---|
[462] | 1743 |
|
---|
[469] | 1744 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 1745 | const Vector3 &termination,
|
---|
| 1746 | ViewCellContainer &viewcells)
|
---|
[466] | 1747 | {
|
---|
[469] | 1748 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 1749 | }
|
---|
| 1750 |
|
---|
[477] | 1751 |
|
---|
[482] | 1752 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 1753 | ViewCell *vc) const
|
---|
| 1754 | {
|
---|
| 1755 | if (mColorCode == 0) // Random color
|
---|
| 1756 | return;
|
---|
[503] | 1757 |
|
---|
[482] | 1758 | float importance = 0;
|
---|
[477] | 1759 |
|
---|
[482] | 1760 | switch (mColorCode)
|
---|
| 1761 | {
|
---|
| 1762 | case 1: // pvs
|
---|
| 1763 | {
|
---|
[503] | 1764 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[482] | 1765 | (float)mViewCellsStats.maxPvs;
|
---|
| 1766 | }
|
---|
| 1767 | break;
|
---|
| 1768 | case 2: // merges
|
---|
| 1769 | {
|
---|
| 1770 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
| 1771 |
|
---|
[503] | 1772 | importance = (float)vspKdVc->mLeaves.size() /
|
---|
[482] | 1773 | (float)mViewCellsStats.maxLeaves;
|
---|
| 1774 | }
|
---|
| 1775 | break;
|
---|
[485] | 1776 | case 3: // merged tree depth difference
|
---|
[482] | 1777 | {
|
---|
[503] | 1778 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 1779 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 1780 | }
|
---|
| 1781 | break;
|
---|
| 1782 | default:
|
---|
| 1783 | break;
|
---|
| 1784 | }
|
---|
| 1785 |
|
---|
| 1786 | Material m;
|
---|
| 1787 | m.mDiffuseColor.b = 1.0f;
|
---|
| 1788 | m.mDiffuseColor.r = importance;
|
---|
| 1789 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 1790 | //Debug << "importance: " << importance << endl;
|
---|
| 1791 | exporter->SetForcedMaterial(m);
|
---|
| 1792 | }
|
---|
| 1793 |
|
---|
| 1794 |
|
---|
[503] | 1795 | void VspKdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
[482] | 1796 | ViewCell *vc) const
|
---|
| 1797 | {
|
---|
| 1798 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
| 1799 | vector<VspKdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
| 1800 |
|
---|
[486] | 1801 | Mesh m;
|
---|
[482] | 1802 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
[486] | 1803 | {
|
---|
| 1804 | mVspKdTree->GetBBox(*it).AddBoxToMesh(&m);
|
---|
| 1805 | }
|
---|
| 1806 |
|
---|
| 1807 | exporter->ExportMesh(&m);
|
---|
[482] | 1808 | }
|
---|
| 1809 |
|
---|
| 1810 |
|
---|
[503] | 1811 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 1812 | {
|
---|
[551] | 1813 | //TODO
|
---|
[503] | 1814 | }
|
---|
[442] | 1815 |
|
---|
[503] | 1816 | /**************************************************************************/
|
---|
| 1817 | /* VspBspViewCellsManager implementation */
|
---|
| 1818 | /**************************************************************************/
|
---|
[482] | 1819 |
|
---|
[503] | 1820 |
|
---|
| 1821 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree,
|
---|
[442] | 1822 | int constructionSamples):
|
---|
[503] | 1823 | ViewCellsManager(constructionSamples),
|
---|
[442] | 1824 | mVspBspTree(vspBspTree)
|
---|
| 1825 | {
|
---|
[478] | 1826 | mVspBspTree->SetViewCellsManager(this);
|
---|
[442] | 1827 | }
|
---|
| 1828 |
|
---|
[477] | 1829 |
|
---|
[475] | 1830 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 1831 | {
|
---|
| 1832 | }
|
---|
| 1833 |
|
---|
[477] | 1834 |
|
---|
[471] | 1835 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 1836 | {
|
---|
[551] | 1837 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 1838 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 1839 | else
|
---|
| 1840 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 1841 | }
|
---|
| 1842 |
|
---|
[477] | 1843 |
|
---|
[480] | 1844 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 1845 | {
|
---|
[547] | 1846 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[480] | 1847 | }
|
---|
| 1848 |
|
---|
| 1849 |
|
---|
[503] | 1850 | float VspBspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
[477] | 1851 | float objRendercost) const
|
---|
[468] | 1852 | {
|
---|
| 1853 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
| 1854 | }
|
---|
| 1855 |
|
---|
[462] | 1856 |
|
---|
[442] | 1857 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 1858 | {
|
---|
| 1859 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 1860 | }
|
---|
| 1861 |
|
---|
[462] | 1862 |
|
---|
[442] | 1863 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 1864 | {
|
---|
| 1865 | return new BspViewCell(mesh);
|
---|
| 1866 | }
|
---|
| 1867 |
|
---|
[503] | 1868 | int VspBspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
[487] | 1869 | const VssRayContainer &rays)
|
---|
[442] | 1870 | {
|
---|
[503] | 1871 | // if view cells were already constructed
|
---|
| 1872 | if (ViewCellsConstructed())
|
---|
| 1873 | return 0;
|
---|
[442] | 1874 |
|
---|
[503] | 1875 | Debug << "Constructing bsp view cells" << endl;
|
---|
| 1876 |
|
---|
| 1877 | int sampleContributions = 0;
|
---|
| 1878 |
|
---|
| 1879 | VssRayContainer sampleRays;
|
---|
| 1880 |
|
---|
| 1881 | int limit = min (mConstructionSamples, (int)rays.size());
|
---|
| 1882 |
|
---|
[469] | 1883 | VssRayContainer constructionRays;
|
---|
| 1884 | VssRayContainer savedRays;
|
---|
[442] | 1885 |
|
---|
[551] | 1886 | Debug << "construction samples: " << mConstructionSamples << " rays: " << rays.size() << endl;
|
---|
[485] | 1887 | GetRaySets(rays, mConstructionSamples, constructionRays, &savedRays);
|
---|
[487] | 1888 |
|
---|
[508] | 1889 | Debug << "construction rays: " << (int)constructionRays.size() << endl;
|
---|
| 1890 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 1891 |
|
---|
[547] | 1892 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 1893 |
|
---|
[542] | 1894 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[503] | 1895 |
|
---|
[480] | 1896 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
[491] | 1897 |
|
---|
[490] | 1898 | // collapse invalid regions
|
---|
[491] | 1899 | cout << "collapsing invalid tree regions ... ";
|
---|
[495] | 1900 | long startTime = GetTime();
|
---|
[503] | 1901 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[501] | 1902 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3 << " seconds" << endl;
|
---|
[495] | 1903 | cout << "finished" << endl;
|
---|
[503] | 1904 |
|
---|
[491] | 1905 | cout << "reseting view cell stats ... ";
|
---|
[480] | 1906 | ResetViewCells();
|
---|
[491] | 1907 | cout << "finished" << endl;
|
---|
[503] | 1908 |
|
---|
[480] | 1909 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
[491] | 1910 |
|
---|
| 1911 | if (1) // export initial view cells
|
---|
| 1912 | {
|
---|
| 1913 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
| 1914 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
[503] | 1915 |
|
---|
[491] | 1916 | if (exporter)
|
---|
| 1917 | {
|
---|
| 1918 | //exporter->SetWireframe();
|
---|
| 1919 | exporter->SetFilled();
|
---|
[508] | 1920 | ExportViewCellsForViz(exporter);
|
---|
[491] | 1921 |
|
---|
[495] | 1922 | if (0 && mExportRays)
|
---|
| 1923 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
[503] | 1924 |
|
---|
[491] | 1925 | if (mExportGeometry)
|
---|
| 1926 | exporter->ExportGeometry(objects);
|
---|
[503] | 1927 |
|
---|
[491] | 1928 | delete exporter;
|
---|
| 1929 | }
|
---|
| 1930 | cout << "finished" << endl;
|
---|
| 1931 | }
|
---|
| 1932 |
|
---|
[495] | 1933 | startTime = GetTime();
|
---|
[503] | 1934 |
|
---|
| 1935 | // reset view cells and stats
|
---|
| 1936 | ResetViewCells();
|
---|
| 1937 |
|
---|
[491] | 1938 | cout << "Computing remaining ray contributions ... ";
|
---|
[469] | 1939 | // recast rest of rays
|
---|
| 1940 | ComputeSampleContributions(savedRays);
|
---|
[491] | 1941 | cout << "finished" << endl;
|
---|
| 1942 |
|
---|
[503] | 1943 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 1944 | << " secs" << endl;
|
---|
[442] | 1945 |
|
---|
[485] | 1946 | cout << "construction finished" << endl;
|
---|
[503] | 1947 |
|
---|
[442] | 1948 | return sampleContributions;
|
---|
| 1949 | }
|
---|
| 1950 |
|
---|
[489] | 1951 |
|
---|
[503] | 1952 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 1953 | const ObjectContainer &objects)
|
---|
[475] | 1954 | {
|
---|
[442] | 1955 | //-- post processing of bsp view cells
|
---|
| 1956 | int vcSize = 0;
|
---|
| 1957 | int pvsSize = 0;
|
---|
| 1958 |
|
---|
[480] | 1959 | mRenderer->RenderScene();
|
---|
| 1960 | SimulationStatistics ss;
|
---|
| 1961 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 1962 | Debug << ss << endl;
|
---|
| 1963 |
|
---|
[442] | 1964 | //-- merge or subdivide view cells
|
---|
| 1965 | int merged = 0;
|
---|
[503] | 1966 |
|
---|
[485] | 1967 | cout << "starting merge using " << mPostProcessSamples << " samples ... ";
|
---|
| 1968 | long startTime = GetTime();
|
---|
[442] | 1969 |
|
---|
[503] | 1970 | // TODO: should be done BEFORE the ray casting
|
---|
[547] | 1971 | merged = mVspBspTree->MergeViewCells(rays, objects);
|
---|
[442] | 1972 |
|
---|
[485] | 1973 | //-- stats and visualizations
|
---|
| 1974 | cout << "finished" << endl;
|
---|
| 1975 | cout << "merged " << merged << " view cells in "
|
---|
| 1976 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 1977 |
|
---|
| 1978 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
| 1979 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 1980 |
|
---|
[491] | 1981 | cout << "reseting view cell stats ... ";
|
---|
[485] | 1982 | ResetViewCells();
|
---|
[491] | 1983 | cout << "finished" << endl;
|
---|
| 1984 |
|
---|
[485] | 1985 | //BspLeaf::NewMail();
|
---|
| 1986 | if (1) // export merged view cells
|
---|
[483] | 1987 | {
|
---|
[485] | 1988 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
| 1989 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
[483] | 1990 |
|
---|
[485] | 1991 | cout << "exporting view cells after merge ... ";
|
---|
| 1992 |
|
---|
| 1993 | if (exporter)
|
---|
[483] | 1994 | {
|
---|
[551] | 1995 | if (1)
|
---|
| 1996 | exporter->SetWireframe();
|
---|
| 1997 | else
|
---|
| 1998 | exporter->SetFilled();
|
---|
[508] | 1999 | ExportViewCellsForViz(exporter);
|
---|
[442] | 2000 |
|
---|
[485] | 2001 | if (mExportGeometry)
|
---|
[483] | 2002 | {
|
---|
[485] | 2003 | Material m;
|
---|
| 2004 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2005 | exporter->SetForcedMaterial(m);
|
---|
| 2006 | exporter->SetFilled();
|
---|
[442] | 2007 |
|
---|
[485] | 2008 | exporter->ExportGeometry(objects);
|
---|
[442] | 2009 | }
|
---|
[485] | 2010 |
|
---|
| 2011 | delete exporter;
|
---|
[442] | 2012 | }
|
---|
[485] | 2013 | cout << "finished" << endl;
|
---|
[442] | 2014 | }
|
---|
[503] | 2015 | }
|
---|
[475] | 2016 |
|
---|
[503] | 2017 |
|
---|
| 2018 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays)
|
---|
| 2019 | {
|
---|
[485] | 2020 | Debug << "render time before refine:" << endl;
|
---|
| 2021 | mRenderer->RenderScene();
|
---|
[503] | 2022 | SimulationStatistics ss;
|
---|
[485] | 2023 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 2024 | Debug << ss << endl;
|
---|
| 2025 |
|
---|
[489] | 2026 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 2027 | long startTime = GetTime();
|
---|
[485] | 2028 |
|
---|
| 2029 | // refining the merged view cells
|
---|
| 2030 | const int refined = mVspBspTree->RefineViewCells(rays);
|
---|
| 2031 |
|
---|
[442] | 2032 | //-- stats and visualizations
|
---|
| 2033 | cout << "finished" << endl;
|
---|
[485] | 2034 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 2035 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 2036 |
|
---|
[485] | 2037 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 2038 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 2039 | }
|
---|
[495] | 2040 |
|
---|
[517] | 2041 |
|
---|
[503] | 2042 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 2043 | const VssRayContainer &rays)
|
---|
| 2044 | {
|
---|
| 2045 | if (!ViewCellsConstructed())
|
---|
| 2046 | {
|
---|
[517] | 2047 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 2048 | return 0;
|
---|
| 2049 | }
|
---|
[520] | 2050 |
|
---|
[542] | 2051 |
|
---|
| 2052 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
[520] | 2053 | if (mViewCellsFinished)
|
---|
[542] | 2054 | {
|
---|
[551] | 2055 | FinalizeViewCells(true);
|
---|
[542] | 2056 | EvaluateViewCellsStats();
|
---|
[517] | 2057 | return 0;
|
---|
[542] | 2058 | }
|
---|
| 2059 |
|
---|
[448] | 2060 |
|
---|
[542] | 2061 | // check if new view cells turned invalid
|
---|
[544] | 2062 | mVspBspTree->ValidateTree();
|
---|
[542] | 2063 | ResetViewCells();
|
---|
| 2064 |
|
---|
| 2065 |
|
---|
[517] | 2066 | VssRayContainer postProcessRays;
|
---|
| 2067 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2068 |
|
---|
| 2069 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[520] | 2070 |
|
---|
[517] | 2071 | Debug << "\nview cell partition after sampling:\n" << mViewCellsStats << endl << endl;
|
---|
| 2072 |
|
---|
[552] | 2073 | // should maybe be done here to allow merge working with area or volume
|
---|
| 2074 | // and to correct the rendering statistics
|
---|
[551] | 2075 | if (1)
|
---|
| 2076 | {
|
---|
| 2077 | FinalizeViewCells(false);
|
---|
| 2078 | }
|
---|
| 2079 |
|
---|
| 2080 | //-- merge the individual view cells
|
---|
[517] | 2081 | MergeViewCells(postProcessRays, objects);
|
---|
| 2082 | //-- refines the merged view cells
|
---|
| 2083 | RefineViewCells(postProcessRays);
|
---|
| 2084 | // collapse sibling leaves that share the same view cell
|
---|
| 2085 | mVspBspTree->CollapseTree();
|
---|
| 2086 |
|
---|
[520] | 2087 | ResetViewCells();
|
---|
| 2088 |
|
---|
[508] | 2089 | // real meshes are only contructed only at this stage
|
---|
[551] | 2090 | //CreateViewCellMeshes();
|
---|
| 2091 | FinalizeViewCells(true);
|
---|
[517] | 2092 |
|
---|
[508] | 2093 | // write view cells to disc
|
---|
| 2094 | if (mExportViewCells)
|
---|
| 2095 | {
|
---|
[517] | 2096 | char buff[100];
|
---|
| 2097 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
| 2098 | string vcFilename(buff);
|
---|
| 2099 |
|
---|
| 2100 | ExportViewCells(buff);
|
---|
[508] | 2101 | }
|
---|
[503] | 2102 |
|
---|
| 2103 | return 0;
|
---|
[442] | 2104 | }
|
---|
| 2105 |
|
---|
[490] | 2106 |
|
---|
[442] | 2107 | int VspBspViewCellsManager::GetType() const
|
---|
| 2108 | {
|
---|
| 2109 | return VSP_BSP;
|
---|
| 2110 | }
|
---|
| 2111 |
|
---|
| 2112 |
|
---|
[490] | 2113 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 2114 | {
|
---|
| 2115 | if (!ViewCellsConstructed())
|
---|
| 2116 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 2117 |
|
---|
| 2118 | // TODO: set reasonable limit
|
---|
| 2119 | const int limit = 20;
|
---|
| 2120 |
|
---|
| 2121 | for (int i = 0; i < limit; ++ i)
|
---|
| 2122 | {
|
---|
[542] | 2123 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 2124 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 2125 | {
|
---|
| 2126 | return true;
|
---|
| 2127 | }
|
---|
| 2128 | }
|
---|
| 2129 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 2130 | return false;
|
---|
| 2131 | }
|
---|
| 2132 |
|
---|
| 2133 |
|
---|
| 2134 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 2135 | {
|
---|
[542] | 2136 | return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[490] | 2137 | mVspBspTree->ViewPointValid(viewPoint);
|
---|
| 2138 | }
|
---|
| 2139 |
|
---|
| 2140 |
|
---|
[442] | 2141 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2142 | const VssRayContainer &sampleRays)
|
---|
[442] | 2143 | {
|
---|
| 2144 | if (!ViewCellsConstructed())
|
---|
| 2145 | return;
|
---|
| 2146 |
|
---|
[485] | 2147 | VssRayContainer visRays;
|
---|
| 2148 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 2149 |
|
---|
[442] | 2150 | if (1) // export view cells
|
---|
| 2151 | {
|
---|
[478] | 2152 | cout << "exporting view cells after post process ... ";
|
---|
[485] | 2153 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
[442] | 2154 |
|
---|
| 2155 | if (exporter)
|
---|
| 2156 | {
|
---|
[542] | 2157 | if (1)
|
---|
| 2158 | {
|
---|
| 2159 | exporter->SetWireframe();
|
---|
| 2160 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 2161 | exporter->SetFilled();
|
---|
| 2162 | }
|
---|
| 2163 |
|
---|
[485] | 2164 | if (mExportGeometry)
|
---|
[542] | 2165 | {
|
---|
[485] | 2166 | exporter->ExportGeometry(objects);
|
---|
[542] | 2167 | }
|
---|
[489] | 2168 |
|
---|
| 2169 | // export rays
|
---|
[490] | 2170 | if (mExportRays)
|
---|
[489] | 2171 | {
|
---|
[490] | 2172 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 2173 | }
|
---|
| 2174 |
|
---|
[508] | 2175 | ExportViewCellsForViz(exporter);
|
---|
[442] | 2176 | delete exporter;
|
---|
| 2177 | }
|
---|
[503] | 2178 |
|
---|
[442] | 2179 | cout << "finished" << endl;
|
---|
[503] | 2180 | }
|
---|
[442] | 2181 |
|
---|
| 2182 | //-- visualization of the BSP splits
|
---|
| 2183 | bool exportSplits = false;
|
---|
[489] | 2184 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2185 |
|
---|
[442] | 2186 | if (exportSplits)
|
---|
| 2187 | {
|
---|
| 2188 | cout << "exporting splits ... ";
|
---|
[485] | 2189 | ExportSplits(objects, visRays);
|
---|
[442] | 2190 | cout << "finished" << endl;
|
---|
| 2191 | }
|
---|
| 2192 |
|
---|
[542] | 2193 | //-- export single view cells
|
---|
[485] | 2194 | ExportBspPvs(objects, visRays);
|
---|
[442] | 2195 | }
|
---|
| 2196 |
|
---|
[503] | 2197 |
|
---|
[485] | 2198 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 2199 | const VssRayContainer &rays)
|
---|
[442] | 2200 | {
|
---|
| 2201 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2202 |
|
---|
[503] | 2203 | if (exporter)
|
---|
| 2204 | {
|
---|
| 2205 | Material m;
|
---|
[442] | 2206 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2207 | exporter->SetForcedMaterial(m);
|
---|
| 2208 | exporter->SetWireframe();
|
---|
[503] | 2209 |
|
---|
[448] | 2210 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 2211 |
|
---|
| 2212 | // take forced material, else big scenes cannot be viewed
|
---|
| 2213 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2214 | exporter->SetForcedMaterial(m);
|
---|
| 2215 | exporter->SetFilled();
|
---|
| 2216 |
|
---|
| 2217 | exporter->ResetForcedMaterial();
|
---|
[503] | 2218 |
|
---|
[442] | 2219 | // export rays
|
---|
[485] | 2220 | if (mExportRays)
|
---|
| 2221 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 2222 |
|
---|
[485] | 2223 | if (mExportGeometry)
|
---|
[442] | 2224 | exporter->ExportGeometry(objects);
|
---|
| 2225 |
|
---|
| 2226 | delete exporter;
|
---|
| 2227 | }
|
---|
| 2228 | }
|
---|
| 2229 |
|
---|
[503] | 2230 |
|
---|
[485] | 2231 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 2232 | const VssRayContainer &rays)
|
---|
[442] | 2233 | {
|
---|
| 2234 | const int leafOut = 10;
|
---|
[503] | 2235 |
|
---|
[442] | 2236 | ViewCell::NewMail();
|
---|
[503] | 2237 |
|
---|
[442] | 2238 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
[475] | 2239 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2240 |
|
---|
[485] | 2241 | // sort view cells to visualize the largest view cells
|
---|
[478] | 2242 | #if 0
|
---|
| 2243 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
| 2244 | #endif
|
---|
[503] | 2245 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 2246 |
|
---|
[485] | 2247 | #if 1
|
---|
| 2248 | //-- some rays for output
|
---|
| 2249 | vector<BspRay *> bspRays;
|
---|
| 2250 | mVspBspTree->ConstructBspRays(bspRays, rays);
|
---|
| 2251 |
|
---|
| 2252 | const int raysOut = min((int)bspRays.size(), mVisualizationSamples);
|
---|
| 2253 | #endif
|
---|
| 2254 |
|
---|
[478] | 2255 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 2256 | {
|
---|
[478] | 2257 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 2258 |
|
---|
[478] | 2259 | VssRayContainer vcRays;
|
---|
[485] | 2260 | Intersectable::NewMail();
|
---|
[542] | 2261 | #if 0 // largest view cell pvs first
|
---|
[478] | 2262 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
| 2263 | #else
|
---|
[485] | 2264 | BspViewCell *vc = dynamic_cast<BspViewCell *>
|
---|
| 2265 | (mViewCells[Random((int)mViewCells.size())]);
|
---|
[478] | 2266 | #endif
|
---|
[442] | 2267 |
|
---|
[483] | 2268 | #if 1
|
---|
[478] | 2269 | // check whether we can add the current ray to the output rays
|
---|
[503] | 2270 | for (int k = 0; k < raysOut; ++ k)
|
---|
[442] | 2271 | {
|
---|
[485] | 2272 | BspRay *ray = bspRays[k];
|
---|
[478] | 2273 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
[442] | 2274 | {
|
---|
[478] | 2275 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
[503] | 2276 | if (vc == leaf->GetViewCell())
|
---|
[478] | 2277 | vcRays.push_back(ray->vssRay);
|
---|
[442] | 2278 | }
|
---|
| 2279 | }
|
---|
[478] | 2280 | #endif
|
---|
| 2281 | //bspLeaves[j]->Mail();
|
---|
| 2282 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
| 2283 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 2284 | exporter->SetWireframe();
|
---|
[442] | 2285 |
|
---|
[478] | 2286 | Material m;//= RandomMaterial();
|
---|
| 2287 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2288 | exporter->SetForcedMaterial(m);
|
---|
[442] | 2289 |
|
---|
[503] | 2290 | ExportVcGeometry(exporter, vc);
|
---|
| 2291 |
|
---|
| 2292 |
|
---|
| 2293 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
[485] | 2294 | << ", piercing rays=" << (int)vcRays.size()
|
---|
| 2295 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
[503] | 2296 |
|
---|
[485] | 2297 | //-- export rays piercing this view cell
|
---|
[483] | 2298 | #if 1
|
---|
[495] | 2299 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[483] | 2300 | #endif
|
---|
[478] | 2301 | #if 0
|
---|
| 2302 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
[483] | 2303 |
|
---|
[478] | 2304 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2305 | exporter->ExportRays((*lit)->mVssRays);
|
---|
| 2306 | #endif
|
---|
| 2307 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2308 | exporter->SetForcedMaterial(m);
|
---|
[442] | 2309 |
|
---|
[478] | 2310 | ObjectPvsMap::const_iterator it,
|
---|
| 2311 | it_end = vc->GetPvs().mEntries.end();
|
---|
[442] | 2312 |
|
---|
[478] | 2313 | exporter->SetFilled();
|
---|
[442] | 2314 |
|
---|
[478] | 2315 | // output PVS of view cell
|
---|
[503] | 2316 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2317 | {
|
---|
| 2318 | Intersectable *intersect = (*it).first;
|
---|
[442] | 2319 |
|
---|
[478] | 2320 | if (!intersect->Mailed())
|
---|
| 2321 | {
|
---|
| 2322 | Material m = RandomMaterial();
|
---|
| 2323 | exporter->SetForcedMaterial(m);
|
---|
| 2324 |
|
---|
| 2325 | exporter->ExportIntersectable(intersect);
|
---|
| 2326 | intersect->Mail();
|
---|
[503] | 2327 | }
|
---|
[442] | 2328 | }
|
---|
[503] | 2329 |
|
---|
[478] | 2330 | DEL_PTR(exporter);
|
---|
| 2331 | cout << "finished" << endl;
|
---|
[442] | 2332 | }
|
---|
[475] | 2333 |
|
---|
[485] | 2334 | #if 1
|
---|
| 2335 | CLEAR_CONTAINER(bspRays);
|
---|
| 2336 | #endif
|
---|
[475] | 2337 | Debug << endl;
|
---|
[442] | 2338 | }
|
---|
| 2339 |
|
---|
| 2340 |
|
---|
[469] | 2341 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2342 | const Vector3 &termination,
|
---|
| 2343 | ViewCellContainer &viewcells)
|
---|
[466] | 2344 | {
|
---|
[469] | 2345 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 2346 | }
|
---|
[482] | 2347 |
|
---|
| 2348 |
|
---|
[503] | 2349 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 2350 | ViewCell *vc) const
|
---|
| 2351 | {
|
---|
[547] | 2352 | if (CheckValid(vc) && (mColorCode == 0)) // Random color
|
---|
[482] | 2353 | return;
|
---|
[503] | 2354 |
|
---|
[482] | 2355 | float importance = 0;
|
---|
[547] | 2356 |
|
---|
| 2357 | Material m;
|
---|
| 2358 |
|
---|
[482] | 2359 | switch (mColorCode)
|
---|
| 2360 | {
|
---|
| 2361 | case 1: // pvs
|
---|
| 2362 | {
|
---|
[503] | 2363 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[482] | 2364 | (float)mViewCellsStats.maxPvs;
|
---|
| 2365 | }
|
---|
| 2366 | break;
|
---|
| 2367 | case 2: // merges
|
---|
| 2368 | {
|
---|
| 2369 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
| 2370 |
|
---|
[503] | 2371 | importance = (float)bspVc->mLeaves.size() /
|
---|
[482] | 2372 | (float)mViewCellsStats.maxLeaves;
|
---|
[547] | 2373 |
|
---|
| 2374 | if (CheckValid(vc))
|
---|
| 2375 | m.mDiffuseColor.b = 1.0f;
|
---|
| 2376 | m.mDiffuseColor.r = importance;
|
---|
| 2377 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[482] | 2378 | }
|
---|
| 2379 | break;
|
---|
| 2380 | case 3: // merge tree differene
|
---|
| 2381 | {
|
---|
[503] | 2382 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 2383 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
[547] | 2384 |
|
---|
| 2385 | if (CheckValid(vc))
|
---|
| 2386 | m.mDiffuseColor.b = 1.0f;
|
---|
| 2387 | m.mDiffuseColor.r = importance;
|
---|
| 2388 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[482] | 2389 | }
|
---|
| 2390 | break;
|
---|
| 2391 | default:
|
---|
| 2392 | break;
|
---|
| 2393 | }
|
---|
| 2394 |
|
---|
[547] | 2395 | m.mDiffuseColor.b = CheckValid(vc) ? 1.0f : 0.0f;
|
---|
[482] | 2396 | m.mDiffuseColor.r = importance;
|
---|
| 2397 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[547] | 2398 |
|
---|
[482] | 2399 | //Debug << "importance: " << importance << endl;
|
---|
| 2400 | exporter->SetForcedMaterial(m);
|
---|
| 2401 | }
|
---|
| 2402 |
|
---|
| 2403 |
|
---|
[503] | 2404 | void VspBspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
[485] | 2405 | ViewCell *vc) const
|
---|
[482] | 2406 | {
|
---|
[542] | 2407 | if (vc->GetMesh())
|
---|
[503] | 2408 | {
|
---|
| 2409 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 2410 | return;
|
---|
| 2411 | }
|
---|
| 2412 |
|
---|
[485] | 2413 | BspNodeGeometry geom;
|
---|
| 2414 | mVspBspTree->
|
---|
[503] | 2415 | ConstructGeometry(dynamic_cast<BspViewCell *>(vc), geom);
|
---|
[485] | 2416 | exporter->ExportPolygons(geom.mPolys);
|
---|
[482] | 2417 | }
|
---|
| 2418 |
|
---|
| 2419 |
|
---|
| 2420 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 2421 | {
|
---|
| 2422 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
| 2423 |
|
---|
| 2424 | int maxDist = 0;
|
---|
| 2425 | // compute max height difference
|
---|
| 2426 | for (int i = 0; i < (int)bspVc->mLeaves.size(); ++ i)
|
---|
| 2427 | for (int j = 0; j < (int)bspVc->mLeaves.size(); ++ j)
|
---|
| 2428 | {
|
---|
| 2429 | BspLeaf *leaf = bspVc->mLeaves[i];
|
---|
| 2430 |
|
---|
| 2431 | if (i != j)
|
---|
| 2432 | {
|
---|
| 2433 | BspLeaf *leaf2 = bspVc->mLeaves[j];
|
---|
| 2434 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 2435 | if (dist > maxDist)
|
---|
| 2436 | maxDist = dist;
|
---|
| 2437 | }
|
---|
| 2438 | }
|
---|
[492] | 2439 | return maxDist;
|
---|
| 2440 | }
|
---|
[482] | 2441 |
|
---|
[492] | 2442 |
|
---|
[503] | 2443 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point)
|
---|
[492] | 2444 | {
|
---|
[508] | 2445 | if (!mVspBspTree)
|
---|
| 2446 | return NULL;
|
---|
| 2447 | return mVspBspTree->GetViewCell(point);
|
---|
[492] | 2448 | }
|
---|
[503] | 2449 |
|
---|
| 2450 |
|
---|
| 2451 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2452 | {
|
---|
| 2453 | BspNodeGeometry geom;
|
---|
| 2454 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
| 2455 | mVspBspTree->ConstructGeometry(bspVc, geom);
|
---|
| 2456 |
|
---|
| 2457 | Mesh *mesh = new Mesh();
|
---|
| 2458 | geom.AddToMesh(*mesh);
|
---|
| 2459 | vc->SetMesh(mesh);
|
---|
| 2460 | mMeshContainer.push_back(mesh);
|
---|
| 2461 | }
|
---|
[508] | 2462 |
|
---|
| 2463 |
|
---|
| 2464 | bool VspBspViewCellsManager::LoadViewCells(const string filename, ObjectContainer *objects)
|
---|
| 2465 | {
|
---|
| 2466 | ViewCellsParser parser;
|
---|
| 2467 |
|
---|
| 2468 | DEL_PTR(mVspBspTree);
|
---|
| 2469 | mVspBspTree = new VspBspTree();
|
---|
| 2470 |
|
---|
| 2471 | bool success = parser.ParseFile(filename, mVspBspTree, this, objects);
|
---|
[520] | 2472 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
| 2473 | mVspBspTree->mBox = GetViewSpaceBox();
|
---|
[508] | 2474 | ResetViewCells();
|
---|
[517] | 2475 | CreateViewCellMeshes();
|
---|
| 2476 |
|
---|
[508] | 2477 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 2478 |
|
---|
[517] | 2479 | mViewCellsFinished = true;
|
---|
| 2480 |
|
---|
[508] | 2481 | return success;
|
---|
| 2482 | }
|
---|
| 2483 |
|
---|
| 2484 |
|
---|
| 2485 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
| 2486 | {
|
---|
| 2487 | return obj1->mId < obj2->mId;
|
---|
| 2488 | }
|
---|
| 2489 |
|
---|
| 2490 |
|
---|
| 2491 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
| 2492 | {
|
---|
| 2493 | cout << "exporting view cells to xml ... ";
|
---|
| 2494 | std::ofstream stream;
|
---|
| 2495 |
|
---|
| 2496 | // for output we need unique ids
|
---|
| 2497 | CreateUniqueViewCellIds();
|
---|
| 2498 |
|
---|
| 2499 | stream.open(filename.c_str());
|
---|
| 2500 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 2501 | stream << "<Visibility_Solution>" << endl;
|
---|
| 2502 |
|
---|
| 2503 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 2504 | stream << "<ViewCells>" << endl;
|
---|
| 2505 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2506 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2507 | ExportViewCell(*it, stream);
|
---|
| 2508 |
|
---|
| 2509 | stream << "</ViewCells>" << endl;
|
---|
| 2510 |
|
---|
| 2511 | //-- load the hierarchy
|
---|
| 2512 | stream << "<BspTree>" << endl;
|
---|
| 2513 | mVspBspTree->Export(stream);
|
---|
| 2514 | stream << endl << "</BspTree>" << endl;
|
---|
| 2515 |
|
---|
| 2516 | stream << "</Visibility_Solution>" << endl;
|
---|
| 2517 | stream.close();
|
---|
| 2518 |
|
---|
| 2519 | cout << "finished" << endl;
|
---|
| 2520 |
|
---|
| 2521 | return true;
|
---|
[532] | 2522 | }
|
---|
| 2523 |
|
---|
| 2524 |
|
---|
| 2525 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 2526 | {
|
---|
[535] | 2527 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 2528 | }
|
---|
[551] | 2529 |
|
---|
| 2530 |
|
---|
| 2531 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell)
|
---|
| 2532 | {
|
---|
| 2533 | BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 2534 | CreateMesh(vc);
|
---|
| 2535 |
|
---|
| 2536 | vector<BspLeaf *>::const_iterator it, it_end = vc->mLeaves.end();
|
---|
| 2537 |
|
---|
| 2538 | float area = 0;
|
---|
| 2539 | float volume = 0;
|
---|
| 2540 |
|
---|
| 2541 | for (it = vc->mLeaves.begin(); it != it_end; ++ it)
|
---|
| 2542 | {
|
---|
| 2543 | BspNodeGeometry geom;
|
---|
| 2544 | BspLeaf *leaf = *it;
|
---|
| 2545 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2546 |
|
---|
| 2547 | area += geom.GetArea();
|
---|
| 2548 | volume += geom.GetVolume();
|
---|
| 2549 | }
|
---|
| 2550 |
|
---|
| 2551 | viewCell->SetVolume(volume);
|
---|
| 2552 | viewCell->SetArea(area);
|
---|
| 2553 | } |
---|