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 "HierarchyManager.h"
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11 | #include "Exporter.h"
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12 | #include "VspBspTree.h"
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13 | #include "ViewCellsParser.h"
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14 | #include "Beam.h"
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15 | #include "VssPreprocessor.h"
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16 | #include "RssPreprocessor.h"
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17 | #include "BoundingBoxConverter.h"
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18 | #include "GlRenderer.h"
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19 | #include "ResourceManager.h"
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20 | #include "IntersectableWrapper.h"
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21 | #include "VspTree.h"
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22 | #include "OspTree.h"
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23 | #include "BvHierarchy.h"
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24 | #include "SamplingStrategy.h"
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25 | #include "SceneGraph.h"
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26 |
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27 | #ifdef PERFTIMER
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28 | #include "Timer/PerfTimer.h"
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29 | #endif // PERFTIMER
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30 |
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31 | #define USE_RAY_LENGTH_AS_CONTRIBUTION 0
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32 | #define DIST_WEIGHTED_CONTRIBUTION 0
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33 | #define SUM_RAY_CONTRIBUTIONS 1
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34 | #define AVG_RAY_CONTRIBUTIONS 0
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35 | #define CONTRIBUTION_RELATIVE_TO_PVS_SIZE 0
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36 | #define PVS_ADD_DIRTY 1
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37 |
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38 |
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39 |
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40 | namespace GtpVisibilityPreprocessor {
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41 |
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42 |
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43 | #ifdef PERFTIMER
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44 | PerfTimer viewCellCastTimer;
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45 | PerfTimer pvsTimer;
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46 | PerfTimer objTimer;
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47 | #endif
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48 |
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49 | // HACK
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50 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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51 | //const static bool CLAMP_TO_BOX = false;
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52 | const static bool CLAMP_TO_BOX = true;
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53 |
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54 |
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55 |
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56 | inline static bool ilt(Intersectable *obj1, Intersectable *obj2)
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57 | {
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58 | return obj1->mId < obj2->mId;
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59 | }
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60 |
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61 |
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62 | template <typename T> class myless
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63 | {
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64 | public:
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65 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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66 | bool operator() (T v1, T v2) const
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67 | {
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68 | return (v1->GetMergeCost() < v2->GetMergeCost());
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69 | }
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70 | };
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71 |
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72 |
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73 |
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74 | struct SortableViewCellEntry {
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75 |
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76 | SortableViewCellEntry() {}
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77 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
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78 |
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79 | float mValue;
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80 | ViewCell *mViewCell;
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81 |
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82 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b);
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83 | };
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84 |
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85 |
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86 | inline bool
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87 | operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
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88 | return a.mValue < b.mValue;
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89 | }
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90 |
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91 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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92 | mRenderer(NULL),
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93 | mInitialSamples(0),
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94 | mConstructionSamples(0),
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95 | mPostProcessSamples(0),
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96 | mVisualizationSamples(0),
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97 | mTotalAreaValid(false),
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98 | mTotalArea(0.0f),
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99 | mViewCellsFinished(false),
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100 | mMaxPvsSize(9999999),
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101 | mMinPvsSize(0),
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102 | mMaxPvsRatio(1.0),
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103 | mViewCellPvsIsUpdated(false),
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104 | mPreprocessor(NULL),
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105 | mViewCellsTree(viewCellsTree),
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106 | mUsePredefinedViewCells(false),
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107 | mMixtureDistribution(NULL),
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108 | mEvaluationSamples(0)
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109 | {
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110 | mViewSpaceBox.Initialize();
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111 | ParseEnvironment();
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112 |
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113 | mViewCellsTree->SetViewCellsManager(this);
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114 | mSamplesStat.Reset();
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115 | mStats.open("mystats.log");
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116 | }
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117 |
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118 |
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119 | int ViewCellsManager::CastEvaluationSamples(const int samplesPerPass,
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120 | VssRayContainer &passSamples)
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121 | {
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122 | static int pass = 0;
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123 | static int totalRays = 0;
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124 |
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125 | SimpleRayContainer rays;
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126 | rays.reserve(samplesPerPass);
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127 | //passSamples.reserve(samplesPerPass * 2);
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128 |
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129 | long startTime = GetTime();
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130 |
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131 | cout<<"Progress :"<<totalRays / 1e6f << " M rays, " << (100.0f * totalRays) / (mEvaluationSamples + 1) << "%" << endl;
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132 |
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133 | //rays.clear();
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134 | //passSamples.clear();
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135 |
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136 | mMixtureDistribution->GenerateSamples(samplesPerPass, rays);
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137 |
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138 | const bool doubleRays = true;
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139 | const bool pruneInvalidRays = true;
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140 | mPreprocessor->CastRays(rays, passSamples, doubleRays, pruneInvalidRays);
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141 |
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142 | mMixtureDistribution->ComputeContributions(passSamples);
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143 | mMixtureDistribution->UpdateDistributions(passSamples);
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144 |
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145 | Real time = TimeDiff(startTime, GetTime());
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146 | PrintPvsStatistics(mStats);
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147 |
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148 | mStats <<
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149 | "#Pass\n" << pass ++ <<endl<<
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150 | "#Time\n" << time <<endl<<
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151 | "#TotalSamples\n" << totalRays << endl;
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152 |
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153 |
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154 | totalRays += samplesPerPass;
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155 |
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156 | return (int)passSamples.size();
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157 | }
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158 |
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159 |
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160 | void ViewCellsManager::ParseEnvironment()
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161 | {
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162 | // visualization stuff
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163 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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164 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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165 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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166 |
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167 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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168 |
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169 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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170 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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171 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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172 |
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173 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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174 |
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175 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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176 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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177 |
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178 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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179 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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180 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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181 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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182 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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183 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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184 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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185 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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186 |
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187 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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188 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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189 |
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190 | Environment::GetSingleton()->GetBoolValue("ViewCells.useKdPvs", mUseKdPvs);
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191 |
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192 | char buf[100];
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193 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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194 |
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195 | Environment::GetSingleton()->GetFloatValue("ViewCells.triangleWeight", mTriangleWeight);
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196 | Environment::GetSingleton()->GetFloatValue("ViewCells.objectWeight", mObjectWeight);
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197 |
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198 | // choose mix of sampling strategies
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199 | if (0)
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200 | {
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201 | mStrategies.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
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202 | //mStrategies.push_back(SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION);
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203 | }
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204 | else
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205 | {
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206 | //mStrategies.push_back(SamplingStrategy::REVERSE_VIEWSPACE_BORDER_BASED_DISTRIBUTION);
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207 |
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208 | mStrategies.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
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209 | mStrategies.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
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210 |
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211 | mStrategies.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
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212 | }
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213 |
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214 | Debug << "casting strategies: ";
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215 | for (int i = 0; i < (int)mStrategies.size(); ++ i)
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216 | Debug << mStrategies[i] << " ";
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217 | Debug << endl;
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218 |
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219 | // sampling type for view cells construction samples
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220 | if (strcmp(buf, "object") == 0)
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221 | {
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222 | mSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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223 | }
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224 | else if (strcmp(buf, "box") == 0)
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225 | {
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226 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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227 | }
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228 | else if (strcmp(buf, "directional") == 0)
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229 | {
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230 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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231 | }
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232 | else if (strcmp(buf, "object_directional") == 0)
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233 | {
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234 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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235 | }
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236 | else if (strcmp(buf, "reverse_object") == 0)
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237 | {
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238 | mSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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239 | }
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240 | /*else if (strcmp(buf, "interior") == 0)
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241 | {
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242 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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243 | }*/
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244 | else
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245 | {
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246 | Debug << "error! wrong sampling type" << endl;
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247 | exit(0);
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248 | }
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249 |
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250 | // sampling type for evaluation samples
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251 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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252 |
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253 | if (strcmp(buf, "object") == 0)
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254 | {
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255 | mEvaluationSamplingType = SamplingStrategy::OBJECT_BASED_DISTRIBUTION;
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256 | }
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257 | else if (strcmp(buf, "box") == 0)
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258 | {
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259 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
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260 | }
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261 | else if (strcmp(buf, "directional") == 0)
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262 | {
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263 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
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264 | }
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265 | else if (strcmp(buf, "object_directional") == 0)
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266 | {
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267 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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268 | }
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269 | else if (strcmp(buf, "reverse_object") == 0)
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270 | {
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271 | mEvaluationSamplingType = SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION;
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272 | }
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273 | else
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274 | {
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275 | mEvaluationSamplingType = -1;
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276 | Debug << "error! wrong sampling type" << endl;
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277 | exit(0);
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278 | }
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279 |
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280 |
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281 | /** The color code used during visualization.
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282 | */
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283 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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284 |
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285 | if (strcmp(buf, "PVS") == 0)
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286 | mColorCode = 1;
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287 | else if (strcmp(buf, "MergedLeaves") == 0)
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288 | mColorCode = 2;
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289 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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290 | mColorCode = 3;
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291 | else
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292 | mColorCode = 0;
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293 |
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294 |
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295 | Debug << "************ View Cells Manager options ***************" << endl;
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296 | Debug << "color code: " << mColorCode << endl;
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297 |
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298 | Debug << "export rays: " << mExportRays << endl;
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299 | Debug << "export geometry: " << mExportGeometry << endl;
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300 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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301 |
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302 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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303 | Debug << "construction samples: " << mConstructionSamples << endl;
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304 | Debug << "post process samples: " << mPostProcessSamples << endl;
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305 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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306 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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307 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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308 | Debug << "export to file: " << mExportViewCells << endl;
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309 |
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310 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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311 | Debug << "post process compress: " << mCompressViewCells << endl;
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312 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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313 | Debug << "post process merge: " << mMergeViewCells << endl;
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314 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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315 | Debug << "sampling type: " << mSamplingType << endl;
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316 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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317 | Debug << "show visualization: " << mShowVisualization << endl;
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318 | Debug << "filter width: " << mFilterWidth << endl;
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319 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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320 |
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321 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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322 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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323 | Debug << "use kd pvs " << mUseKdPvs << endl;
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324 |
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325 | Debug << "triangle weight: " << mTriangleWeight << endl;
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326 | Debug << "object weight: " << mObjectWeight << endl;
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327 |
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328 | Debug << endl;
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329 | }
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330 |
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331 |
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332 | ViewCell *ViewCellsManager::GetViewCellById(const int id)
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333 | {
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334 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
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335 |
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336 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
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337 | {
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338 | if ((*vit)->GetId() == id)
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339 | return (*vit);
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340 | }
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341 | return NULL;
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342 | }
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343 |
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344 |
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345 | bool ViewCellsManager::ExportRandomViewCells(const string &filename,
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346 | const vector<ViewCellPoints *> &viewCells)
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347 | {
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348 | std::ofstream outStream;
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349 | outStream.open(filename.c_str());
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350 |
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351 | vector<ViewCellPoints *>::const_iterator vit, vit_end = viewCells.end();
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352 |
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353 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
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354 | {
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355 | ViewCell *vc = (*vit)->first;
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356 |
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357 | outStream << "v " << vc->GetId() << endl;
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358 |
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359 | SimpleRayContainer viewPoints;
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360 |
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361 | SimpleRayContainer::const_iterator pit, pit_end = (*vit)->second.end();
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362 |
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363 | for (pit = (*vit)->second.begin(); pit != pit_end; ++ pit)
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364 | {
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365 | const Vector3 pt = (*pit).mOrigin;
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366 | const Vector3 dir = (*pit).mDirection;
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367 |
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368 | outStream << "p " << pt.x << " " << pt.y << " " << pt.z
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369 | << " " << dir.x << " " << dir.y << " " << dir.z << endl;
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370 | }
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371 | }
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372 |
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373 | return true;
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374 | }
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375 |
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376 |
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377 | bool ViewCellsManager::GenerateRandomViewCells(vector<ViewCellPoints *> &viewCells,
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378 | const int nViewCells,
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379 | const int nViewPoints)
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380 | {
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381 | ViewCellContainer rViewCells;
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382 |
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383 | cout << "generating " << nViewCells << " random view cells" << endl;
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384 | ///GenerateRandomViewCells(rViewCells, nViewCells);
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385 |
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386 | //cout << "finished" << endl;
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387 |
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388 | //for (int i = 0; i < viewCells.size(); ++ i)
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389 | // cout << "vc " << i << ": " << viewCells[i]->GetId() << endl;
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390 |
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391 | cout << "generating " << nViewPoints << " view points per view cell" << endl;
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392 |
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393 | int generatedViewCells = 0;
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394 | int i = 0;
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395 | while (generatedViewCells < nViewCells)
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396 | {
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397 | ++ i;
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398 |
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399 | const int idx = (int)RandomValue(0.0f, (float)mViewCells.size() - 0.5f);
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400 |
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401 | ViewCell *viewCell = GetViewCell(idx);
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402 |
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403 | cout << "testing view cell: " << viewCell->GetId() << endl;
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404 |
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405 | if (!viewCell->Mailed())
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406 | {
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407 | viewCell->Mail();
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408 |
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409 | SimpleRayContainer viewPoints;
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410 |
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411 | // generate random view points
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412 | if (IsValidViewSpace(viewCell) &&
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413 | GenerateViewPoints(viewCell, nViewPoints, viewPoints))
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414 | {
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415 | Debug << "vc: " << viewCell->GetId() << endl;
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416 |
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417 | ViewCellPoints *vcPts = new ViewCellPoints();
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418 | viewCells.push_back(vcPts);
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419 |
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420 | // valid view cell found
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421 | vcPts->first = viewCell;
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422 |
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423 | // generate view points
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424 | ++ generatedViewCells;
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425 |
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426 | SimpleRayContainer::const_iterator pit, pit_end = viewPoints.end();
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427 |
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428 | for (pit = viewPoints.begin(); pit != pit_end; ++ pit)
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429 | {
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430 | Debug << "vp: " << (*pit) << endl;
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431 | vcPts->second.push_back(*pit);
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432 | }
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433 | cout << "view cell " << generatedViewCells << " generated: " << viewCell->GetId() << endl;
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434 | }
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435 | else
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436 | {
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437 | cout << "error: invalid view cell " << generatedViewCells << " with id " << viewCell->GetId() << endl;
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438 | }
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439 | }
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440 |
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441 | if (i > nViewCells * 1000000) // safety
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442 | {
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443 | cout << "big error" << endl;
|
---|
444 | break;
|
---|
445 | }
|
---|
446 | cout << "processd view cells " << generatedViewCells << " of " << nViewCells << endl << endl;
|
---|
447 | }
|
---|
448 |
|
---|
449 | return true;
|
---|
450 | }
|
---|
451 |
|
---|
452 |
|
---|
453 | bool ViewCellsManager::ImportRandomViewCells(const string &filename,
|
---|
454 | vector<ViewCellPoints *> &viewCells)
|
---|
455 | {
|
---|
456 | ifstream inStream(filename.c_str());
|
---|
457 | if (!inStream.is_open())
|
---|
458 | return false;
|
---|
459 |
|
---|
460 | ViewCellPoints *currentViewCell = NULL;
|
---|
461 |
|
---|
462 | string buf;
|
---|
463 | while (!(getline(inStream, buf)).eof())
|
---|
464 | {
|
---|
465 | switch (buf[0])
|
---|
466 | {
|
---|
467 | case 'v':
|
---|
468 | {
|
---|
469 | int id;
|
---|
470 | sscanf(buf.c_str(), "v %d", &id);
|
---|
471 |
|
---|
472 | currentViewCell = new ViewCellPoints();
|
---|
473 | currentViewCell->first = GetViewCellById(id);
|
---|
474 |
|
---|
475 | viewCells.push_back(currentViewCell);
|
---|
476 | break;
|
---|
477 | }
|
---|
478 | case 'p':
|
---|
479 | {
|
---|
480 | Vector3 pt, dir;
|
---|
481 | sscanf(buf.c_str(), "p %f %f %f %f %f %f", &pt.x, &pt.y, &pt.z, &dir.x, &dir.y, &dir.z);
|
---|
482 |
|
---|
483 | SimpleRay ray(pt, dir, 0, 1);
|
---|
484 | currentViewCell->second.push_back(ray);
|
---|
485 | break;
|
---|
486 | }
|
---|
487 | default:
|
---|
488 | break;
|
---|
489 | }
|
---|
490 | }
|
---|
491 |
|
---|
492 | return true;
|
---|
493 | }
|
---|
494 |
|
---|
495 |
|
---|
496 | bool ViewCellsManager::ImportRandomViewCells(const string &filename)
|
---|
497 | {
|
---|
498 | return ImportRandomViewCells(filename, mViewCellPoints);
|
---|
499 | }
|
---|
500 |
|
---|
501 |
|
---|
502 | bool ViewCellsManager::GenerateViewPoints(ViewCell *viewCell,
|
---|
503 | const int numViewPoints,
|
---|
504 | SimpleRayContainer &viewPoints)
|
---|
505 | {
|
---|
506 | bool success = true;
|
---|
507 | int generatedPts = 0;
|
---|
508 | int i = 0;
|
---|
509 |
|
---|
510 | cout << "generating view points for view cell " << viewCell->GetId() << endl;
|
---|
511 |
|
---|
512 | while (generatedPts < numViewPoints)
|
---|
513 | {
|
---|
514 | SimpleRay pt;
|
---|
515 |
|
---|
516 | if (GenerateViewPoint(viewCell, pt))
|
---|
517 | {
|
---|
518 | ++ generatedPts;
|
---|
519 | cout << "generated view point " << generatedPts << endl;
|
---|
520 | viewPoints.push_back(pt);
|
---|
521 | }
|
---|
522 |
|
---|
523 | // savety criterium
|
---|
524 | if (++ i > numViewPoints * 3)
|
---|
525 | {
|
---|
526 | return false;
|
---|
527 | }
|
---|
528 | }
|
---|
529 |
|
---|
530 | cout << "view point generation finished" << endl;
|
---|
531 |
|
---|
532 | return true;
|
---|
533 | }
|
---|
534 |
|
---|
535 |
|
---|
536 | bool ViewCellsManager::ExportRandomViewCells(const string &filename)
|
---|
537 | {
|
---|
538 | const int numViewCells = 100;
|
---|
539 | const int numViewPoints = 10;
|
---|
540 |
|
---|
541 | preprocessor->mViewCellsManager->
|
---|
542 | GenerateRandomViewCells(mViewCellPoints, numViewCells, numViewPoints);
|
---|
543 |
|
---|
544 | //cout << "exporting random view cells" << endl;
|
---|
545 | return preprocessor->mViewCellsManager->ExportRandomViewCells(filename, mViewCellPoints);
|
---|
546 | }
|
---|
547 |
|
---|
548 |
|
---|
549 | bool ViewCellsManager::GenerateViewPoint(ViewCell *viewCell,
|
---|
550 | SimpleRay &ray)
|
---|
551 | {
|
---|
552 | // do not use this function since it could return different
|
---|
553 | // viewpoints for different executions of the algorithm
|
---|
554 |
|
---|
555 | int tries = 0;
|
---|
556 | Vector3 viewPoint, direction;
|
---|
557 | const int maxTries = 10;
|
---|
558 |
|
---|
559 | while (1)
|
---|
560 | {
|
---|
561 | // hack
|
---|
562 | if (!viewCell->GetMesh())
|
---|
563 | CreateMesh(viewCell);
|
---|
564 |
|
---|
565 | Mesh *mesh = viewCell->GetMesh();
|
---|
566 | AxisAlignedBox3 box = mesh->mBox;
|
---|
567 |
|
---|
568 | Vector3 pVector = Vector3(Random(1.0f),
|
---|
569 | Random(1.0f),
|
---|
570 | Random(1.0f));
|
---|
571 |
|
---|
572 | viewPoint = box.GetPoint(pVector);
|
---|
573 |
|
---|
574 | const Vector3 dVector = Vector3(2 * M_PI * Random(1.0f), M_PI * Random(1.0f), 0.0f);
|
---|
575 | direction = Normalize(Vector3(sin(dVector.x), 0.0f, cos(dVector.x)));
|
---|
576 |
|
---|
577 | ViewCell *v = GetViewCell(viewPoint);
|
---|
578 |
|
---|
579 | if (v && v->GetValid())
|
---|
580 | {
|
---|
581 | mPreprocessor->GetRenderer()->mViewPoint = viewPoint;
|
---|
582 | mPreprocessor->GetRenderer()->mViewDirection = direction;
|
---|
583 |
|
---|
584 | if (mPreprocessor->GetRenderer()->ValidViewPoint())
|
---|
585 | {
|
---|
586 | cout << "view point valid " << viewPoint << " " << direction << endl;
|
---|
587 | break;
|
---|
588 | }
|
---|
589 |
|
---|
590 | }
|
---|
591 |
|
---|
592 | if (++ tries > maxTries)
|
---|
593 | {
|
---|
594 | cerr << "error: no view point computed" << endl;
|
---|
595 | return false;
|
---|
596 | }
|
---|
597 | }
|
---|
598 |
|
---|
599 | ray = SimpleRay(viewPoint, direction, 0, 1);
|
---|
600 | //cout << "view point generated: " << viewPoint << " " << direction << endl;
|
---|
601 |
|
---|
602 | return true;
|
---|
603 | }
|
---|
604 |
|
---|
605 |
|
---|
606 | bool ViewCellsManager::IsValidViewSpace(ViewCell *vc)
|
---|
607 | {
|
---|
608 | SimpleRay simpleRay;
|
---|
609 | //check if view point can be generated
|
---|
610 | return GenerateViewPoint(vc, simpleRay);
|
---|
611 | }
|
---|
612 |
|
---|
613 |
|
---|
614 | bool ViewCellsManager::GenerateRandomViewCells(ViewCellContainer &viewCells,
|
---|
615 | const int numViewCells)
|
---|
616 | {
|
---|
617 | int generatedViewCells = 0;
|
---|
618 | //HaltonSequence halton;
|
---|
619 | //float r[1];
|
---|
620 |
|
---|
621 | ViewCell::NewMail();
|
---|
622 |
|
---|
623 | while (generatedViewCells < numViewCells)
|
---|
624 | {
|
---|
625 | // savety criterium
|
---|
626 | const int tries = 100000 + generatedViewCells;
|
---|
627 | int i = 0;
|
---|
628 |
|
---|
629 | // generate next view cell
|
---|
630 | while (1)
|
---|
631 | {
|
---|
632 | //halton.GetNext(1, r);
|
---|
633 | //const int idx = (int)(r[0] * mViewCells.size() - 1.0f);
|
---|
634 | const int idx = (int)RandomValue(0.0f, (float)mViewCells.size() - 0.5f);
|
---|
635 |
|
---|
636 | ViewCell *viewCell = GetViewCell(idx);
|
---|
637 |
|
---|
638 | if (!viewCell->Mailed())
|
---|
639 | {
|
---|
640 | viewCell->Mail();
|
---|
641 |
|
---|
642 | // check for valid view space
|
---|
643 | if (IsValidViewSpace(viewCell))
|
---|
644 | {
|
---|
645 | // valid view cell found
|
---|
646 | viewCells.push_back(viewCell);
|
---|
647 |
|
---|
648 | ++ generatedViewCells;
|
---|
649 | //cout << "view cell " << generatedViewCells << " generated: " << viewCell->GetId() << endl;
|
---|
650 | break;
|
---|
651 | }
|
---|
652 | else
|
---|
653 | {
|
---|
654 | cout << "error: invalid view cell " << generatedViewCells << " with id " << viewCell->GetId() << endl;
|
---|
655 | }
|
---|
656 | }
|
---|
657 |
|
---|
658 | if (++ i == tries) // no new view cell fond
|
---|
659 | {
|
---|
660 | cerr << "big error! no view cell found" << endl;
|
---|
661 | return false;
|
---|
662 | }
|
---|
663 | }
|
---|
664 | }
|
---|
665 |
|
---|
666 | return true;
|
---|
667 | }
|
---|
668 |
|
---|
669 |
|
---|
670 | ViewCellsManager::~ViewCellsManager()
|
---|
671 | {
|
---|
672 | // HACK: if view cells tree does not
|
---|
673 | // handle view cells, we have to do it here
|
---|
674 | // question: rather create view cells resource manager?
|
---|
675 | if (!ViewCellsTreeConstructed())
|
---|
676 | {
|
---|
677 | CLEAR_CONTAINER(mViewCells);
|
---|
678 | }
|
---|
679 | else
|
---|
680 | {
|
---|
681 | DEL_PTR(mViewCellsTree);
|
---|
682 | }
|
---|
683 |
|
---|
684 | DEL_PTR(mMixtureDistribution);
|
---|
685 | CLEAR_CONTAINER(mViewCellPoints);
|
---|
686 | }
|
---|
687 |
|
---|
688 |
|
---|
689 | Intersectable *ViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
|
---|
690 | {
|
---|
691 | if (mUseKdPvs)
|
---|
692 | {
|
---|
693 | KdNode *node = GetPreprocessor()->
|
---|
694 | mKdTree->GetPvsNode(isTermination ? ray.mTermination : ray.mOrigin);
|
---|
695 |
|
---|
696 | return GetPreprocessor()->mKdTree->GetOrCreateKdIntersectable(node);
|
---|
697 | }
|
---|
698 | else
|
---|
699 | {
|
---|
700 | return isTermination ? ray.mTerminationObject : ray.mOriginObject;
|
---|
701 | }
|
---|
702 | }
|
---|
703 |
|
---|
704 |
|
---|
705 | void ViewCellsManager::CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects)
|
---|
706 | {
|
---|
707 | GetPreprocessor()->mKdTree->CollectObjects(box, objects);
|
---|
708 | }
|
---|
709 |
|
---|
710 |
|
---|
711 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
|
---|
712 | {
|
---|
713 | Mesh *m = vc->GetMesh();
|
---|
714 |
|
---|
715 | if (m)
|
---|
716 | {
|
---|
717 | m->ComputeBoundingBox();
|
---|
718 | return m->mBox;
|
---|
719 | }
|
---|
720 |
|
---|
721 | AxisAlignedBox3 box;
|
---|
722 | box.Initialize();
|
---|
723 |
|
---|
724 | if (!vc->IsLeaf())
|
---|
725 | {
|
---|
726 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
727 |
|
---|
728 | ViewCellContainer::iterator it = vci->mChildren.begin();
|
---|
729 | for (; it != vci->mChildren.end(); ++it)
|
---|
730 | {
|
---|
731 | box.Include(GetViewCellBox(*it));
|
---|
732 | }
|
---|
733 | }
|
---|
734 |
|
---|
735 | return box;
|
---|
736 | }
|
---|
737 |
|
---|
738 |
|
---|
739 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
|
---|
740 | const vector<int> &strategies,
|
---|
741 | VssRayContainer &passSamples
|
---|
742 | ) const
|
---|
743 | {
|
---|
744 | long startTime = GetTime();
|
---|
745 |
|
---|
746 | SimpleRayContainer simpleRays;
|
---|
747 |
|
---|
748 | simpleRays.reserve(samplesPerPass);
|
---|
749 | // reserve 2 times the size because always creates double rays
|
---|
750 | passSamples.reserve(samplesPerPass * 2);
|
---|
751 |
|
---|
752 | // create one third of each type
|
---|
753 | int castRays = 0;
|
---|
754 |
|
---|
755 | const int numRaysPerPass = samplesPerPass / (int)strategies.size();
|
---|
756 | vector<int>::const_iterator iit, iit_end = strategies.end();
|
---|
757 |
|
---|
758 | for (iit = strategies.begin(); iit != iit_end; ++ iit)
|
---|
759 | {
|
---|
760 | const int stype = *iit;
|
---|
761 | const int newRays =
|
---|
762 | mPreprocessor->GenerateRays(numRaysPerPass, stype, simpleRays);
|
---|
763 |
|
---|
764 | cout << "cast " << newRays << " rays of strategy " << stype << endl;
|
---|
765 | castRays += newRays;
|
---|
766 | }
|
---|
767 |
|
---|
768 | cout << "generated " << samplesPerPass << " samples in "
|
---|
769 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
770 |
|
---|
771 | startTime = GetTime();
|
---|
772 |
|
---|
773 | // shoot simple ray and add it to importance samples
|
---|
774 | mPreprocessor->CastRays(simpleRays, passSamples, true);
|
---|
775 |
|
---|
776 | cout << "cast " << samplesPerPass << " samples in "
|
---|
777 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
778 |
|
---|
779 | return (int)passSamples.size();
|
---|
780 | }
|
---|
781 |
|
---|
782 |
|
---|
783 | /// helper function which destroys rays or copies them into the output ray container
|
---|
784 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
785 | {
|
---|
786 | cout << "disposing samples ... ";
|
---|
787 | long startTime = GetTime();
|
---|
788 | int n = (int)rays.size();
|
---|
789 |
|
---|
790 | if (outRays)
|
---|
791 | {
|
---|
792 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
793 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
794 | {
|
---|
795 | outRays->push_back(*it);
|
---|
796 | }
|
---|
797 | }
|
---|
798 | else
|
---|
799 | {
|
---|
800 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
801 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
802 | {
|
---|
803 | if (!(*it)->IsActive())
|
---|
804 | delete (*it);
|
---|
805 | }
|
---|
806 | }
|
---|
807 |
|
---|
808 | cout << "finished" << endl;
|
---|
809 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
810 | }
|
---|
811 |
|
---|
812 |
|
---|
813 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
814 | {
|
---|
815 | int numSamples = 0;
|
---|
816 |
|
---|
817 | SimpleRayContainer simpleRays;
|
---|
818 | VssRayContainer initialSamples;
|
---|
819 |
|
---|
820 | // store pointer to preprocessor for further use during construction
|
---|
821 | mPreprocessor = preprocessor;
|
---|
822 |
|
---|
823 | // now decode distribution string
|
---|
824 | char mix[1024];
|
---|
825 | Environment::GetSingleton()->GetStringValue("RssPreprocessor.distributions", mix);
|
---|
826 | Debug << "using mixture distributions: " << mix << endl;
|
---|
827 |
|
---|
828 | mMixtureDistribution = new MixtureDistribution(*mPreprocessor);
|
---|
829 | mMixtureDistribution->Construct(mix);
|
---|
830 |
|
---|
831 | ///////////////////////////////////////////////////////
|
---|
832 | //-- Initial sampling for the construction of the view cell hierarchy.
|
---|
833 | //-- We use uniform sampling / box based sampling.
|
---|
834 |
|
---|
835 | long startTime = GetTime();
|
---|
836 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... " << endl;
|
---|
837 |
|
---|
838 | // cast initial samples
|
---|
839 |
|
---|
840 | // mix of sampling strategies
|
---|
841 | #if 0
|
---|
842 | vector<int>dummy;
|
---|
843 | dummy.push_back(SamplingStrategy::OBJECT_BASED_DISTRIBUTION);
|
---|
844 | dummy.push_back(SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION);
|
---|
845 | dummy.push_back(SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION);
|
---|
846 | #endif
|
---|
847 | CastPassSamples(mInitialSamples, mStrategies, initialSamples);
|
---|
848 |
|
---|
849 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
850 |
|
---|
851 | // construct view cells
|
---|
852 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
853 |
|
---|
854 | // initial samples count for overall samples ...
|
---|
855 | numSamples += mInitialSamples;
|
---|
856 |
|
---|
857 | // rays can be passed or deleted
|
---|
858 | disposeRays(initialSamples, outRays);
|
---|
859 |
|
---|
860 | cout << "time needed for initial construction: "
|
---|
861 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
862 |
|
---|
863 | Debug << "time needed for initial construction: "
|
---|
864 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
865 |
|
---|
866 | // collect view cells and compute statistics
|
---|
867 | ResetViewCells();
|
---|
868 |
|
---|
869 |
|
---|
870 | ///////////////////
|
---|
871 | //-- Initial hierarchy construction finished.
|
---|
872 | //-- We can do some stats and visualization
|
---|
873 |
|
---|
874 | if (0)
|
---|
875 | {
|
---|
876 | //-- export initial view cell partition
|
---|
877 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
878 |
|
---|
879 | const string filename("viewcells.wrl");
|
---|
880 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
881 |
|
---|
882 | if (exporter)
|
---|
883 | {
|
---|
884 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
885 |
|
---|
886 | if (mExportGeometry)
|
---|
887 | {
|
---|
888 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
889 | }
|
---|
890 |
|
---|
891 | exporter->SetWireframe();
|
---|
892 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
893 |
|
---|
894 | delete exporter;
|
---|
895 | cout << "finished" << endl;
|
---|
896 | }
|
---|
897 | }
|
---|
898 |
|
---|
899 |
|
---|
900 | //////////////////////
|
---|
901 | //-- Cast some more sampling after initial construction.
|
---|
902 | //-- The additional rays can be used to gain
|
---|
903 | //-- some more information before the bottom-up merge
|
---|
904 | //-- note: guided rays could be used for this task
|
---|
905 |
|
---|
906 | // time spent after construction of the initial partition
|
---|
907 | startTime = GetTime();
|
---|
908 | const int n = mConstructionSamples; //+initialSamples;
|
---|
909 |
|
---|
910 | while (numSamples < n)
|
---|
911 | {
|
---|
912 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
913 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
914 |
|
---|
915 | VssRayContainer constructionSamples;
|
---|
916 |
|
---|
917 | // cast new samples
|
---|
918 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
919 | mStrategies,
|
---|
920 | constructionSamples);
|
---|
921 |
|
---|
922 | cout << "finished" << endl;
|
---|
923 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
924 |
|
---|
925 | // computes sample contribution of cast rays
|
---|
926 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
927 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
928 |
|
---|
929 | cout << "finished" << endl;
|
---|
930 |
|
---|
931 | disposeRays(constructionSamples, outRays);
|
---|
932 | cout << "total samples: " << numSamples << endl;
|
---|
933 | }
|
---|
934 |
|
---|
935 | if (0)
|
---|
936 | {
|
---|
937 | ///////////////
|
---|
938 | //-- Get stats after the additional sampling step
|
---|
939 | //-- and before the bottom-up merge step
|
---|
940 |
|
---|
941 | EvaluateViewCellsStats();
|
---|
942 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
943 | << mCurrentViewCellsStats << endl;
|
---|
944 |
|
---|
945 | mRenderer->RenderScene();
|
---|
946 | SimulationStatistics ss;
|
---|
947 | static_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
948 |
|
---|
949 | Debug << ss << endl;
|
---|
950 | }
|
---|
951 |
|
---|
952 | ////////////////////
|
---|
953 | //-- post processing of the initial construction
|
---|
954 | //-- We can bottom-up merge the view cells in this step
|
---|
955 | //-- We can additionally cast some post processing sample rays.
|
---|
956 | //-- These rays can be used to store the view cells with the rays
|
---|
957 |
|
---|
958 | VssRayContainer postProcessSamples;
|
---|
959 | cout << "casting " << mPostProcessSamples << " post process samples ..." << endl;
|
---|
960 |
|
---|
961 | CastPassSamples(mPostProcessSamples, mStrategies, postProcessSamples);
|
---|
962 |
|
---|
963 | cout << "finished post process sampling" << endl;
|
---|
964 | cout << "starting post processing and visualization" << endl;
|
---|
965 |
|
---|
966 | // store view cells with rays for post processing?
|
---|
967 | const bool storeViewCells = true;
|
---|
968 |
|
---|
969 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
970 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
971 |
|
---|
972 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
973 |
|
---|
974 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
975 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
976 |
|
---|
977 | Debug << "post processing time: " << secs << endl;
|
---|
978 | disposeRays(postProcessSamples, outRays);
|
---|
979 |
|
---|
980 |
|
---|
981 | ////////////////
|
---|
982 | //-- Evaluation of the resulting view cell partition.
|
---|
983 | //-- We cast a number of new samples and measure the render cost
|
---|
984 |
|
---|
985 | if (mEvaluateViewCells)
|
---|
986 | {
|
---|
987 | EvalViewCellPartition();
|
---|
988 | }
|
---|
989 |
|
---|
990 | /////////////////
|
---|
991 | //-- Show some visualizations
|
---|
992 |
|
---|
993 | if (mShowVisualization)
|
---|
994 | {
|
---|
995 | ///////////////
|
---|
996 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
997 |
|
---|
998 | VssRayContainer visSamples;
|
---|
999 | int numSamples = CastPassSamples(mVisualizationSamples,
|
---|
1000 | mStrategies,
|
---|
1001 | visSamples);
|
---|
1002 |
|
---|
1003 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
1004 | ComputeSampleContributions(visSamples, true, storeViewCells);
|
---|
1005 |
|
---|
1006 | // various visualizations
|
---|
1007 | Visualize(preprocessor->mObjects, visSamples);
|
---|
1008 |
|
---|
1009 | disposeRays(visSamples, outRays);
|
---|
1010 | }
|
---|
1011 |
|
---|
1012 | // recalculate view cells
|
---|
1013 | EvaluateViewCellsStats();
|
---|
1014 |
|
---|
1015 | // compress the final solution
|
---|
1016 | if (0) CompressViewCells();
|
---|
1017 |
|
---|
1018 | // write view cells to disc
|
---|
1019 | if (mExportViewCells)
|
---|
1020 | {
|
---|
1021 | char filename[100];
|
---|
1022 |
|
---|
1023 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
1024 | ExportViewCells(filename, mExportPvs, mPreprocessor->mObjects);
|
---|
1025 | }
|
---|
1026 |
|
---|
1027 | return numSamples;
|
---|
1028 | }
|
---|
1029 |
|
---|
1030 |
|
---|
1031 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
1032 | {
|
---|
1033 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
1034 | }
|
---|
1035 |
|
---|
1036 |
|
---|
1037 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
1038 | ObjectContainer &pvsObjects,
|
---|
1039 | bool finalizeViewCells,
|
---|
1040 | BoundingBoxConverter *bconverter)
|
---|
1041 |
|
---|
1042 | {
|
---|
1043 | if (!Debug.is_open()) Debug.open("debug.log");
|
---|
1044 |
|
---|
1045 |
|
---|
1046 | if (strstr(filename.c_str(), ".bn"))
|
---|
1047 | {
|
---|
1048 | Debug << "binary view cells format detected" << endl;
|
---|
1049 |
|
---|
1050 | return LoadViewCellsBinary(filename,
|
---|
1051 | pvsObjects,
|
---|
1052 | finalizeViewCells,
|
---|
1053 | bconverter);
|
---|
1054 | }
|
---|
1055 | else
|
---|
1056 | {
|
---|
1057 | Debug << "xml view cells format detected" << endl;
|
---|
1058 |
|
---|
1059 | // give just an empty container as parameter:
|
---|
1060 | // this loading function is used in the engine, thus it
|
---|
1061 | // does not need to load the entities the preprocessor works on
|
---|
1062 | ObjectContainer preprocessorObjects;
|
---|
1063 |
|
---|
1064 | return LoadViewCells(filename,
|
---|
1065 | pvsObjects,
|
---|
1066 | preprocessorObjects,
|
---|
1067 | finalizeViewCells,
|
---|
1068 | bconverter);
|
---|
1069 | }
|
---|
1070 | }
|
---|
1071 |
|
---|
1072 | void ViewCellsManager::LoadIndexedBoundingBoxesBinary(IN_STREAM &stream, IndexedBoundingBoxContainer &iboxes)
|
---|
1073 | {
|
---|
1074 | int numBoxes;
|
---|
1075 | stream.read(reinterpret_cast<char *>(&numBoxes), sizeof(int));
|
---|
1076 |
|
---|
1077 | iboxes.reserve(numBoxes);
|
---|
1078 |
|
---|
1079 | Vector3 bmin;
|
---|
1080 | Vector3 bmax;
|
---|
1081 | int id;
|
---|
1082 |
|
---|
1083 | #ifdef PERFTIMER
|
---|
1084 | PerfTimer boxTimer;
|
---|
1085 |
|
---|
1086 | boxTimer.Start();
|
---|
1087 | boxTimer.Entry();
|
---|
1088 | #endif
|
---|
1089 | for (int i = 0; i < numBoxes; ++ i)
|
---|
1090 | {
|
---|
1091 | stream.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
1092 | stream.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
1093 | stream.read(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
1094 |
|
---|
1095 | iboxes.push_back(IndexedBoundingBox(id, AxisAlignedBox3(bmin, bmax)));
|
---|
1096 | }
|
---|
1097 |
|
---|
1098 |
|
---|
1099 | #ifdef PERFTIMER
|
---|
1100 | boxTimer.Exit();
|
---|
1101 |
|
---|
1102 | Debug << numBoxes << " boxes loaded in " << boxTimer.TotalTime() << " secs" << endl;
|
---|
1103 | #endif
|
---|
1104 | }
|
---|
1105 |
|
---|
1106 |
|
---|
1107 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
1108 | ObjectContainer &pvsObjects,
|
---|
1109 | ObjectContainer &preprocessorObjects,
|
---|
1110 | bool finalizeViewCells,
|
---|
1111 | BoundingBoxConverter *bconverter)
|
---|
1112 | {
|
---|
1113 | ViewCellsParser parser;
|
---|
1114 | ViewCellsManager *vm = NULL;
|
---|
1115 |
|
---|
1116 | const long startTime = GetTime();
|
---|
1117 | const bool success = parser.ParseViewCellsFile(filename,
|
---|
1118 | &vm,
|
---|
1119 | pvsObjects,
|
---|
1120 | preprocessorObjects,
|
---|
1121 | bconverter);
|
---|
1122 |
|
---|
1123 | if (!success)
|
---|
1124 | {
|
---|
1125 | Debug << "Error: loading view cells failed!" << endl;
|
---|
1126 | DEL_PTR(vm);
|
---|
1127 |
|
---|
1128 | return NULL;
|
---|
1129 | }
|
---|
1130 |
|
---|
1131 | if (0) //hack: reset function should work, but something is wrong ..
|
---|
1132 | {
|
---|
1133 | vm->ResetViewCells();
|
---|
1134 | }
|
---|
1135 | else
|
---|
1136 | {
|
---|
1137 | ViewCellContainer leaves;
|
---|
1138 |
|
---|
1139 | vm->mViewCells.clear();
|
---|
1140 | vm->mViewCellsTree->CollectLeaves(vm->mViewCellsTree->GetRoot(), leaves);
|
---|
1141 |
|
---|
1142 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
1143 |
|
---|
1144 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
1145 | {
|
---|
1146 | vm->mViewCells.push_back(*it);
|
---|
1147 | }
|
---|
1148 | }
|
---|
1149 |
|
---|
1150 | vm->mViewCellsFinished = true;
|
---|
1151 | vm->mMaxPvsSize = (int)pvsObjects.size();
|
---|
1152 |
|
---|
1153 | if (finalizeViewCells)
|
---|
1154 | {
|
---|
1155 | // do some final computations, e.g.,
|
---|
1156 | // create the meshes and compute view cell volumes
|
---|
1157 | const bool createMeshes = true;
|
---|
1158 | vm->FinalizeViewCells(createMeshes);
|
---|
1159 | }
|
---|
1160 |
|
---|
1161 | cout << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
1162 | << TimeDiff(startTime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
1163 |
|
---|
1164 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
1165 | << TimeDiff(startTime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
1166 |
|
---|
1167 | return vm;
|
---|
1168 | }
|
---|
1169 |
|
---|
1170 |
|
---|
1171 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
1172 | const bool exportPvs,
|
---|
1173 | const ObjectContainer &objects)
|
---|
1174 | {
|
---|
1175 | // no view cells constructed yet
|
---|
1176 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
1177 | return false;
|
---|
1178 |
|
---|
1179 | cout << "exporting view cells to xml ... ";
|
---|
1180 |
|
---|
1181 | OUT_STREAM stream(filename.c_str());
|
---|
1182 |
|
---|
1183 | // we need unique ids for each view cell
|
---|
1184 | CreateUniqueViewCellIds();
|
---|
1185 |
|
---|
1186 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
1187 | stream << "<VisibilitySolution>" << endl;
|
---|
1188 |
|
---|
1189 | if (exportPvs)
|
---|
1190 | {
|
---|
1191 | //-- export bounding boxes
|
---|
1192 | stream << "<BoundingBoxes>" << endl;
|
---|
1193 |
|
---|
1194 | if (mUseKdPvs)
|
---|
1195 | {
|
---|
1196 | vector<KdIntersectable *>::iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
1197 |
|
---|
1198 | int id = 0;
|
---|
1199 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
1200 | {
|
---|
1201 | Intersectable *obj = *kit;
|
---|
1202 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
1203 |
|
---|
1204 | obj->SetId(id);
|
---|
1205 |
|
---|
1206 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
1207 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
1208 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
1209 | }
|
---|
1210 | }
|
---|
1211 | else
|
---|
1212 | {
|
---|
1213 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
1214 |
|
---|
1215 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
1216 | {
|
---|
1217 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
1218 |
|
---|
1219 | ////////////
|
---|
1220 | //-- the bounding boxes
|
---|
1221 |
|
---|
1222 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
1223 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
1224 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
1225 | }
|
---|
1226 | }
|
---|
1227 |
|
---|
1228 | stream << "</BoundingBoxes>" << endl;
|
---|
1229 | }
|
---|
1230 |
|
---|
1231 |
|
---|
1232 | /////////////
|
---|
1233 | //-- export the view cells and the pvs
|
---|
1234 |
|
---|
1235 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
1236 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
1237 |
|
---|
1238 | mViewCellsTree->Export(stream, exportPvs);
|
---|
1239 |
|
---|
1240 | stream << "</ViewCells>" << endl;
|
---|
1241 |
|
---|
1242 |
|
---|
1243 | //////////
|
---|
1244 | //-- export the view space hierarchy
|
---|
1245 |
|
---|
1246 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
1247 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
1248 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
1249 |
|
---|
1250 | mVspBspTree->Export(stream);
|
---|
1251 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
1252 |
|
---|
1253 | stream << "</VisibilitySolution>" << endl;
|
---|
1254 |
|
---|
1255 | stream.close();
|
---|
1256 | cout << "finished" << endl;
|
---|
1257 |
|
---|
1258 | return true;
|
---|
1259 | }
|
---|
1260 |
|
---|
1261 |
|
---|
1262 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
1263 | const int nViewCells)
|
---|
1264 | {
|
---|
1265 | std::ofstream outstream;
|
---|
1266 | outstream.open(filename.c_str());
|
---|
1267 |
|
---|
1268 | ViewCellContainer viewCells;
|
---|
1269 |
|
---|
1270 | // the collect best viewcells does not work?
|
---|
1271 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
1272 |
|
---|
1273 | float maxRenderCost, minRenderCost;
|
---|
1274 |
|
---|
1275 | // sort by render cost
|
---|
1276 | sort(viewCells.begin(), viewCells.end(), SmallerRenderCost);
|
---|
1277 |
|
---|
1278 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
1279 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
1280 |
|
---|
1281 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
1282 |
|
---|
1283 | int histoIntervals;
|
---|
1284 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
1285 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
1286 |
|
---|
1287 | int histoMaxVal;
|
---|
1288 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
1289 | maxRenderCost = min((float)histoMaxVal, maxRenderCost);
|
---|
1290 |
|
---|
1291 |
|
---|
1292 | const float range = maxRenderCost - minRenderCost;
|
---|
1293 | const float stepSize = range / (float)intervals;
|
---|
1294 |
|
---|
1295 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
1296 |
|
---|
1297 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
1298 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
1299 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
1300 |
|
---|
1301 | int j = 0;
|
---|
1302 | int i = 0;
|
---|
1303 |
|
---|
1304 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
1305 |
|
---|
1306 | // count for integral
|
---|
1307 | float volSum = 0;
|
---|
1308 | int smallerCostSum = 0;
|
---|
1309 |
|
---|
1310 | // note can skip computations for view cells already
|
---|
1311 | // evaluated and delete them from vector ...
|
---|
1312 | while (1)
|
---|
1313 | {
|
---|
1314 | // count for histogram value
|
---|
1315 | float volDif = 0;
|
---|
1316 | int smallerCostDif = 0;
|
---|
1317 |
|
---|
1318 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
1319 | {
|
---|
1320 | volSum += viewCells[i]->GetVolume();
|
---|
1321 | volDif += viewCells[i]->GetVolume();
|
---|
1322 |
|
---|
1323 | ++ i;
|
---|
1324 | ++ smallerCostSum;
|
---|
1325 | ++ smallerCostDif;
|
---|
1326 | }
|
---|
1327 |
|
---|
1328 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
1329 | break;
|
---|
1330 |
|
---|
1331 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
1332 | const float volRatioSum = volSum / totalVol;
|
---|
1333 | const float volRatioDif = volDif / totalVol;
|
---|
1334 |
|
---|
1335 | outstream << "#Pass\n" << j ++ << endl;
|
---|
1336 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
1337 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
1338 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
1339 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
1340 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
1341 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
1342 |
|
---|
1343 | // increase current render cost
|
---|
1344 | currentRenderCost += stepSize;
|
---|
1345 | }
|
---|
1346 |
|
---|
1347 | outstream.close();
|
---|
1348 | }
|
---|
1349 |
|
---|
1350 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
1351 | const int nViewCells)
|
---|
1352 | {
|
---|
1353 | std::ofstream outstream;
|
---|
1354 | outstream.open(filename.c_str());
|
---|
1355 |
|
---|
1356 | ViewCellContainer viewCells;
|
---|
1357 |
|
---|
1358 | #ifdef USE_BIT_PVS
|
---|
1359 | cout << "objects size: " << (int)ObjectPvsIterator::sObjects.size() << endl;
|
---|
1360 | cout << "pvs size: " << ObjectPvs::sPvsSize << endl;
|
---|
1361 | #endif
|
---|
1362 |
|
---|
1363 | // $$ JB hack - the collect best viewcells does not work?
|
---|
1364 | #if 0
|
---|
1365 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
1366 | #else
|
---|
1367 | viewCells = mViewCells;
|
---|
1368 | #endif
|
---|
1369 |
|
---|
1370 | ViewCellContainer::iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
1371 |
|
---|
1372 | for (; it != it_end; ++it)
|
---|
1373 | {
|
---|
1374 | (*it)->UpdatePvsCost();
|
---|
1375 | }
|
---|
1376 |
|
---|
1377 | float maxPvs, maxVal, minVal;
|
---|
1378 |
|
---|
1379 | // sort by pvs size
|
---|
1380 | sort(viewCells.begin(), viewCells.end(), SmallerPvs);
|
---|
1381 |
|
---|
1382 | maxPvs = viewCells.back()->GetTrianglesInPvs();
|
---|
1383 | minVal = 0;
|
---|
1384 |
|
---|
1385 | // hack: normalize pvs size
|
---|
1386 | int histoMaxVal;
|
---|
1387 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
1388 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
1389 |
|
---|
1390 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
1391 | << " real maxpvs " << maxPvs << endl;
|
---|
1392 |
|
---|
1393 | int histoIntervals;
|
---|
1394 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
1395 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
1396 |
|
---|
1397 | const float range = maxVal - minVal;
|
---|
1398 | int stepSize = (int)(range / intervals);
|
---|
1399 |
|
---|
1400 | // set step size to avoid endless loop
|
---|
1401 | if (!stepSize) stepSize = 1;
|
---|
1402 |
|
---|
1403 | Debug << "intervals " << histoIntervals << endl;
|
---|
1404 | Debug << "stepsize: " << stepSize << endl;
|
---|
1405 | cout << "intervals " << histoIntervals << endl;
|
---|
1406 | cout << "stepsize: " << stepSize << endl;
|
---|
1407 |
|
---|
1408 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
1409 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
1410 |
|
---|
1411 | float currentPvs = minVal;
|
---|
1412 |
|
---|
1413 | int i = 0;
|
---|
1414 | int j = 0;
|
---|
1415 | float volSum = 0;
|
---|
1416 | int smallerSum = 0;
|
---|
1417 |
|
---|
1418 | it = viewCells.begin();
|
---|
1419 |
|
---|
1420 | for (int j = 0; j < intervals; ++ j)
|
---|
1421 | {
|
---|
1422 | float volDif = 0;
|
---|
1423 | int smallerDif = 0;
|
---|
1424 |
|
---|
1425 | while ((i < (int)viewCells.size()) &&
|
---|
1426 | (viewCells[i]->GetTrianglesInPvs() < currentPvs))
|
---|
1427 | {
|
---|
1428 | volDif += viewCells[i]->GetVolume();
|
---|
1429 | volSum += viewCells[i]->GetVolume();
|
---|
1430 |
|
---|
1431 | ++ i;
|
---|
1432 | ++ smallerDif;
|
---|
1433 | ++ smallerSum;
|
---|
1434 | }
|
---|
1435 |
|
---|
1436 | const float volRatioDif = volDif / totalVol;
|
---|
1437 | const float volRatioSum = volSum / totalVol;
|
---|
1438 |
|
---|
1439 | outstream << "#Pass\n" << j << endl;
|
---|
1440 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
1441 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
1442 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
1443 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
1444 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
1445 |
|
---|
1446 | //-- increase current pvs size to define next interval
|
---|
1447 | currentPvs += stepSize;
|
---|
1448 | }
|
---|
1449 |
|
---|
1450 | outstream.close();
|
---|
1451 | }
|
---|
1452 |
|
---|
1453 |
|
---|
1454 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
1455 | ViewCellContainer &viewCells)
|
---|
1456 | {
|
---|
1457 | std::ofstream outstream;
|
---|
1458 | outstream.open(filename.c_str());
|
---|
1459 |
|
---|
1460 | float maxPvs, maxVal, minVal;
|
---|
1461 |
|
---|
1462 | // sort by pvs size
|
---|
1463 | sort(viewCells.begin(), viewCells.end(), SmallerPvs);
|
---|
1464 |
|
---|
1465 | maxPvs = viewCells.back()->GetTrianglesInPvs();
|
---|
1466 | minVal = 0;
|
---|
1467 |
|
---|
1468 | // hack: normalize pvs size
|
---|
1469 | int histoMaxVal;
|
---|
1470 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
1471 | maxVal = max((float)histoMaxVal, maxPvs);
|
---|
1472 |
|
---|
1473 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
1474 | << " real maxpvs " << maxPvs << endl;
|
---|
1475 |
|
---|
1476 | int histoIntervals;
|
---|
1477 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
1478 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
1479 |
|
---|
1480 | const float range = maxVal - minVal;
|
---|
1481 | int stepSize = (int)(range / intervals);
|
---|
1482 |
|
---|
1483 | // set step size to avoid endless loop
|
---|
1484 | if (!stepSize) stepSize = 1;
|
---|
1485 |
|
---|
1486 | Debug << "intervals " << histoIntervals << endl;
|
---|
1487 | Debug << "stepsize: " << stepSize << endl;
|
---|
1488 | cout << "intervals " << histoIntervals << endl;
|
---|
1489 | cout << "stepsize: " << stepSize << endl;
|
---|
1490 |
|
---|
1491 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
1492 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
1493 |
|
---|
1494 | float currentPvs = minVal;
|
---|
1495 |
|
---|
1496 | int i = 0;
|
---|
1497 | int j = 0;
|
---|
1498 | float volSum = 0;
|
---|
1499 | int smallerSum = 0;
|
---|
1500 |
|
---|
1501 | //ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
1502 |
|
---|
1503 | for (int j = 0; j < intervals; ++ j)
|
---|
1504 | {
|
---|
1505 | float volDif = 0;
|
---|
1506 | int smallerDif = 0;
|
---|
1507 |
|
---|
1508 | while ((i < (int)viewCells.size()) &&
|
---|
1509 | (viewCells[i]->GetTrianglesInPvs() < currentPvs))
|
---|
1510 | {
|
---|
1511 | volDif += viewCells[i]->GetVolume();
|
---|
1512 | volSum += viewCells[i]->GetVolume();
|
---|
1513 |
|
---|
1514 | ++ i;
|
---|
1515 | ++ smallerDif;
|
---|
1516 | ++ smallerSum;
|
---|
1517 | }
|
---|
1518 |
|
---|
1519 | // if (0 && (i < (int)viewCells.size()))
|
---|
1520 | // Debug << "new pvs cost increase: " << mViewCellsTree->GetTrianglesInPvs(viewCells[i])
|
---|
1521 | // << " " << currentPvs << endl;
|
---|
1522 |
|
---|
1523 | const float volRatioDif = volDif / totalVol;
|
---|
1524 | const float volRatioSum = volSum / totalVol;
|
---|
1525 |
|
---|
1526 | outstream << "#Pass\n" << j << endl;
|
---|
1527 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
1528 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
1529 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
1530 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
1531 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
1532 |
|
---|
1533 | //-- increase current pvs size to define next interval
|
---|
1534 | currentPvs += stepSize;
|
---|
1535 | }
|
---|
1536 |
|
---|
1537 | outstream.close();
|
---|
1538 | }
|
---|
1539 |
|
---|
1540 |
|
---|
1541 | bool ViewCellsManager::GetExportPvs() const
|
---|
1542 | {
|
---|
1543 | return mExportPvs;
|
---|
1544 | }
|
---|
1545 |
|
---|
1546 |
|
---|
1547 | void ViewCellsManager::ResetPvs()
|
---|
1548 | {
|
---|
1549 | if (ViewCellsTreeConstructed())
|
---|
1550 | {
|
---|
1551 | mViewCellsTree->ResetPvs();
|
---|
1552 | }
|
---|
1553 | else
|
---|
1554 | {
|
---|
1555 | cout << "view cells tree not constructed" << endl;
|
---|
1556 | }
|
---|
1557 | }
|
---|
1558 |
|
---|
1559 |
|
---|
1560 | void ViewCellsManager::ExportStats(const string &fileName)
|
---|
1561 | {
|
---|
1562 | mViewCellsTree->ExportStats(fileName);
|
---|
1563 | }
|
---|
1564 |
|
---|
1565 |
|
---|
1566 | void ViewCellsManager::EvalViewCellPartition()
|
---|
1567 | {
|
---|
1568 | int samplesPerPass;
|
---|
1569 | int numSamples;
|
---|
1570 | int castSamples = 0;
|
---|
1571 | char str[64];
|
---|
1572 | int oldSamples = 0;
|
---|
1573 |
|
---|
1574 | int samplesForStats;
|
---|
1575 |
|
---|
1576 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
1577 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
1578 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
1579 |
|
---|
1580 | char statsPrefix[100];
|
---|
1581 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
1582 |
|
---|
1583 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
1584 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
1585 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
1586 |
|
---|
1587 | cout << "reseting pvs ... ";
|
---|
1588 |
|
---|
1589 | const bool startFromZero = true;
|
---|
1590 |
|
---|
1591 | // reset pvs and start over from zero
|
---|
1592 | if (startFromZero)
|
---|
1593 | {
|
---|
1594 | mViewCellsTree->ResetPvs();
|
---|
1595 | }
|
---|
1596 | else // start from current sampless
|
---|
1597 | {
|
---|
1598 | // statistics before casting more samples
|
---|
1599 | cout << "compute new statistics ... ";
|
---|
1600 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
1601 | string fName = string(statsPrefix) + string(str);
|
---|
1602 |
|
---|
1603 | mViewCellsTree->ExportStats(fName);
|
---|
1604 | cout << "finished" << endl;
|
---|
1605 | }
|
---|
1606 |
|
---|
1607 | cout << "finished" << endl;
|
---|
1608 | cout << "Evaluating view cell partition ... " << endl;
|
---|
1609 |
|
---|
1610 | while (castSamples < numSamples)
|
---|
1611 | {
|
---|
1612 | ///////////////
|
---|
1613 | //-- we have to use uniform sampling strategy for construction rays
|
---|
1614 |
|
---|
1615 | VssRayContainer evaluationSamples;
|
---|
1616 | const int samplingType = mEvaluationSamplingType;
|
---|
1617 |
|
---|
1618 | long startTime = GetTime();
|
---|
1619 |
|
---|
1620 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
1621 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
1622 |
|
---|
1623 | CastPassSamples(samplesPerPass, mStrategies, evaluationSamples);
|
---|
1624 |
|
---|
1625 | castSamples += samplesPerPass;
|
---|
1626 |
|
---|
1627 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
1628 |
|
---|
1629 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
1630 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
1631 |
|
---|
1632 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
1633 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
1634 |
|
---|
1635 | startTime = GetTime();
|
---|
1636 |
|
---|
1637 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
1638 |
|
---|
1639 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
1640 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
1641 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
1642 |
|
---|
1643 | if ((castSamples >= samplesForStats + oldSamples) || (castSamples >= numSamples))
|
---|
1644 | {
|
---|
1645 | oldSamples += samplesForStats;
|
---|
1646 |
|
---|
1647 | ///////////
|
---|
1648 | //-- output stats
|
---|
1649 |
|
---|
1650 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
1651 | string fileName = string(statsPrefix) + string(str);
|
---|
1652 |
|
---|
1653 | ///////////////
|
---|
1654 | //-- propagate pvs or pvs size information
|
---|
1655 |
|
---|
1656 | startTime = GetTime();
|
---|
1657 | ObjectPvs pvs;
|
---|
1658 |
|
---|
1659 | cout << "updating pvs for evaluation ... " << endl;
|
---|
1660 |
|
---|
1661 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
1662 |
|
---|
1663 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
1664 | cout << "finished updating the pvs in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
1665 | Debug << "pvs evaluated in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
1666 |
|
---|
1667 | startTime = GetTime();
|
---|
1668 | cout << "compute new statistics ... " << endl;
|
---|
1669 |
|
---|
1670 | ExportStats(fileName);
|
---|
1671 |
|
---|
1672 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
1673 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
1674 | Debug << "statistis computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
1675 | }
|
---|
1676 |
|
---|
1677 | disposeRays(evaluationSamples, NULL);
|
---|
1678 | }
|
---|
1679 |
|
---|
1680 |
|
---|
1681 | ////////////
|
---|
1682 | //-- histogram
|
---|
1683 |
|
---|
1684 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
1685 | bool useHisto;
|
---|
1686 | int histoStepSize;
|
---|
1687 |
|
---|
1688 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
1689 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
1690 |
|
---|
1691 | if (useHisto)
|
---|
1692 | {
|
---|
1693 | // evaluate view cells in a histogram
|
---|
1694 | char s[64];
|
---|
1695 |
|
---|
1696 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
1697 | {
|
---|
1698 | string filename;
|
---|
1699 |
|
---|
1700 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
1701 | #if 0
|
---|
1702 | //-- evaluate histogram for render cost
|
---|
1703 | sprintf(s, "-%09d-histo.log", pass);
|
---|
1704 | filename = string(statsPrefix) + string(s);
|
---|
1705 |
|
---|
1706 | EvalViewCellHistogram(filename, pass);
|
---|
1707 |
|
---|
1708 | #endif
|
---|
1709 | //////////////////////////////////////////
|
---|
1710 | //-- evaluate histogram for pvs size
|
---|
1711 |
|
---|
1712 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
1713 |
|
---|
1714 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
1715 | filename = string(statsPrefix) + string(s);
|
---|
1716 |
|
---|
1717 | EvalViewCellHistogram(filename, pass);
|
---|
1718 | // EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
1719 | }
|
---|
1720 | }
|
---|
1721 | }
|
---|
1722 |
|
---|
1723 |
|
---|
1724 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
1725 | {
|
---|
1726 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
1727 | }
|
---|
1728 |
|
---|
1729 |
|
---|
1730 | /// Returns index of the best view cells of the neighborhood
|
---|
1731 | static int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
1732 | {
|
---|
1733 | int bestViewCellIdx = 0;
|
---|
1734 |
|
---|
1735 | float mergeCost = Limits::Infinity;
|
---|
1736 | int i = 0;
|
---|
1737 |
|
---|
1738 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
1739 |
|
---|
1740 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
1741 | {
|
---|
1742 | const float mc = EvalMergeCost(root, *vit);
|
---|
1743 |
|
---|
1744 | if (mc < mergeCost)
|
---|
1745 | {
|
---|
1746 | mergeCost = mc;
|
---|
1747 | bestViewCellIdx = i;
|
---|
1748 | }
|
---|
1749 | }
|
---|
1750 |
|
---|
1751 | return bestViewCellIdx;
|
---|
1752 | }
|
---|
1753 |
|
---|
1754 |
|
---|
1755 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
1756 | {
|
---|
1757 | mMaxFilterSize = size;
|
---|
1758 | }
|
---|
1759 |
|
---|
1760 |
|
---|
1761 | float ViewCellsManager::ComputeRenderCost(const int tri, const int obj) //const
|
---|
1762 | {
|
---|
1763 | return max((float)tri * mTriangleWeight, (float)obj * mObjectWeight);
|
---|
1764 | }
|
---|
1765 |
|
---|
1766 |
|
---|
1767 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
1768 | const ViewCellContainer &viewCells)
|
---|
1769 | {
|
---|
1770 | ViewCell *root = currentViewCell;
|
---|
1771 | ViewCellContainer neighborhood = viewCells;
|
---|
1772 |
|
---|
1773 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
1774 |
|
---|
1775 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
1776 |
|
---|
1777 | /////////////////
|
---|
1778 | //-- use priority queue to merge leaf pairs
|
---|
1779 |
|
---|
1780 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
1781 | {
|
---|
1782 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
1783 |
|
---|
1784 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
1785 |
|
---|
1786 | // remove from vector
|
---|
1787 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
1788 | neighborhood.pop_back();
|
---|
1789 |
|
---|
1790 | if (!bestViewCell || !root)
|
---|
1791 | cout << "warning!!" << endl;
|
---|
1792 |
|
---|
1793 | // create new root of the hierarchy
|
---|
1794 | root = MergeViewCells(root, bestViewCell);
|
---|
1795 | }
|
---|
1796 |
|
---|
1797 | return root;
|
---|
1798 | }
|
---|
1799 |
|
---|
1800 |
|
---|
1801 |
|
---|
1802 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
1803 | const ViewCellContainer &viewCells)
|
---|
1804 | {
|
---|
1805 |
|
---|
1806 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
1807 | int i, j;
|
---|
1808 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
1809 | if (viewCells[i] != currentViewCell)
|
---|
1810 | neighborhood[j++] = SortableViewCellEntry(
|
---|
1811 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
1812 | viewCells[i]);
|
---|
1813 | }
|
---|
1814 | neighborhood.resize(j);
|
---|
1815 |
|
---|
1816 | sort(neighborhood.begin(), neighborhood.end());
|
---|
1817 |
|
---|
1818 | ViewCell *root = currentViewCell;
|
---|
1819 |
|
---|
1820 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
1821 |
|
---|
1822 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
1823 | //-- use priority queue to merge leaf pairs
|
---|
1824 |
|
---|
1825 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
1826 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
1827 | {
|
---|
1828 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
1829 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
1830 | // create new root of the hierarchy
|
---|
1831 | root = MergeViewCells(root, bestViewCell);
|
---|
1832 | // set negative cost so that this view cell gets deleted
|
---|
1833 | root->SetMergeCost(-1.0f);
|
---|
1834 | }
|
---|
1835 |
|
---|
1836 | return root;
|
---|
1837 | }
|
---|
1838 |
|
---|
1839 | void
|
---|
1840 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
1841 | ) const
|
---|
1842 | {
|
---|
1843 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
1844 | {
|
---|
1845 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
1846 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
1847 |
|
---|
1848 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
1849 | DeleteLocalMergeTree(*it);
|
---|
1850 |
|
---|
1851 | vci->mChildren.clear();
|
---|
1852 |
|
---|
1853 | delete vci;
|
---|
1854 | }
|
---|
1855 | }
|
---|
1856 |
|
---|
1857 |
|
---|
1858 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
1859 | int minPvsSize,
|
---|
1860 | int maxPvsSize) const
|
---|
1861 | {
|
---|
1862 |
|
---|
1863 | const float pvsCost = vc->GetPvs().EvalPvsCost();
|
---|
1864 |
|
---|
1865 | if ((pvsCost > maxPvsSize) || (pvsCost < minPvsSize))
|
---|
1866 | {
|
---|
1867 | cout << "err: " << pvsCost << " " << minPvsSize << " " << maxPvsSize << endl;
|
---|
1868 | return false;
|
---|
1869 | }
|
---|
1870 |
|
---|
1871 | return true;
|
---|
1872 | }
|
---|
1873 |
|
---|
1874 |
|
---|
1875 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
1876 | ViewCellContainer &viewCells) const
|
---|
1877 | {
|
---|
1878 | return 0;
|
---|
1879 | };
|
---|
1880 |
|
---|
1881 |
|
---|
1882 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
1883 | const float width) const
|
---|
1884 | {
|
---|
1885 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
1886 | Vector3 min = viewPoint - w * 0.5f;
|
---|
1887 | Vector3 max = viewPoint + w * 0.5f;
|
---|
1888 |
|
---|
1889 | return AxisAlignedBox3(min, max);
|
---|
1890 | }
|
---|
1891 |
|
---|
1892 |
|
---|
1893 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
1894 | PrVs &prvs,
|
---|
1895 | const float filterWidth)
|
---|
1896 | {
|
---|
1897 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
1898 |
|
---|
1899 | if (mMaxFilterSize < 1) {
|
---|
1900 | prvs.mViewCell = currentViewCell;
|
---|
1901 | return;
|
---|
1902 | }
|
---|
1903 |
|
---|
1904 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
1905 |
|
---|
1906 | if (currentViewCell)
|
---|
1907 | {
|
---|
1908 | ViewCellContainer viewCells;
|
---|
1909 | ComputeBoxIntersections(box, viewCells);
|
---|
1910 |
|
---|
1911 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
1912 | prvs.mViewCell = root;
|
---|
1913 |
|
---|
1914 | }
|
---|
1915 | else
|
---|
1916 | {
|
---|
1917 | prvs.mViewCell = NULL;
|
---|
1918 | //prvs.mPvs = root->GetPvs();
|
---|
1919 | }
|
---|
1920 | }
|
---|
1921 |
|
---|
1922 |
|
---|
1923 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
1924 | {
|
---|
1925 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
1926 | }
|
---|
1927 |
|
---|
1928 |
|
---|
1929 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
1930 | int minPvs,
|
---|
1931 | int maxPvs) const
|
---|
1932 | {
|
---|
1933 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
1934 | }
|
---|
1935 |
|
---|
1936 |
|
---|
1937 | void
|
---|
1938 | ViewCellsManager::SetValidity(
|
---|
1939 | int minPvsSize,
|
---|
1940 | int maxPvsSize) const
|
---|
1941 | {
|
---|
1942 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1943 |
|
---|
1944 |
|
---|
1945 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1946 | {
|
---|
1947 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
1948 | }
|
---|
1949 | }
|
---|
1950 |
|
---|
1951 | void
|
---|
1952 | ViewCellsManager::SetValidityPercentage(
|
---|
1953 | const float minValid,
|
---|
1954 | const float maxValid
|
---|
1955 | )
|
---|
1956 | {
|
---|
1957 | ObjectPvs dummyPvs;
|
---|
1958 | // update pvs sizes
|
---|
1959 | for (int i = 0; i < (int)mViewCells.size(); ++ i) {
|
---|
1960 | UpdatePvsForEvaluation(mViewCells[i], dummyPvs);
|
---|
1961 | }
|
---|
1962 |
|
---|
1963 | sort(mViewCells.begin(), mViewCells.end(), SmallerPvs);
|
---|
1964 |
|
---|
1965 | int start = (int)(mViewCells.size() * minValid);
|
---|
1966 | int end = (int)(mViewCells.size() * maxValid);
|
---|
1967 |
|
---|
1968 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
1969 | {
|
---|
1970 | // cout<<"pvs:"<<mViewCells[i]->GetCachedPvsCost()<<endl;
|
---|
1971 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
1972 | }
|
---|
1973 | }
|
---|
1974 |
|
---|
1975 |
|
---|
1976 | int ViewCellsManager::CountValidViewcells() const
|
---|
1977 | {
|
---|
1978 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1979 | int valid = 0;
|
---|
1980 |
|
---|
1981 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1982 | {
|
---|
1983 | if ((*it)->GetValid())
|
---|
1984 | ++ valid;
|
---|
1985 | }
|
---|
1986 |
|
---|
1987 | return valid;
|
---|
1988 | }
|
---|
1989 |
|
---|
1990 |
|
---|
1991 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
1992 | const bool extrudeBaseTriangles)
|
---|
1993 | {
|
---|
1994 | /// we use predefined view cells from now on
|
---|
1995 | mUsePredefinedViewCells = true;
|
---|
1996 | X3dParser parser;
|
---|
1997 |
|
---|
1998 | if (extrudeBaseTriangles)
|
---|
1999 | {
|
---|
2000 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
2001 | const bool success = parser.ParseFile(filename, *this);
|
---|
2002 |
|
---|
2003 | if (!success)
|
---|
2004 | return false;
|
---|
2005 | }
|
---|
2006 | else
|
---|
2007 | {
|
---|
2008 | // hack: use standard mesh loading
|
---|
2009 | // create temporary scene graph for loading the view cells geometry
|
---|
2010 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
2011 | SceneGraphNode *root = new SceneGraphNode();
|
---|
2012 | const bool success = parser.ParseFile(filename, root, true);
|
---|
2013 |
|
---|
2014 | if (!success)
|
---|
2015 | {
|
---|
2016 | DEL_PTR(root);
|
---|
2017 | return false;
|
---|
2018 | }
|
---|
2019 |
|
---|
2020 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
2021 |
|
---|
2022 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
2023 | {
|
---|
2024 | Mesh *mesh;
|
---|
2025 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
2026 | {
|
---|
2027 | TransformedMeshInstance *mit = static_cast<TransformedMeshInstance *>(*oit);
|
---|
2028 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
2029 | mit->GetTransformedMesh(*mesh);
|
---|
2030 | }
|
---|
2031 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
2032 | {
|
---|
2033 | MeshInstance *mit = static_cast<MeshInstance *>(*oit);
|
---|
2034 | mesh = mit->GetMesh();
|
---|
2035 | }
|
---|
2036 | mesh->ComputeBoundingBox();
|
---|
2037 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
2038 | }
|
---|
2039 |
|
---|
2040 | DEL_PTR(root);
|
---|
2041 | }
|
---|
2042 |
|
---|
2043 | // set view space box to bounding box of the view cells
|
---|
2044 | AxisAlignedBox3 bbox;
|
---|
2045 | bbox.Initialize();
|
---|
2046 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
2047 |
|
---|
2048 | for (; it != it_end; ++ it)
|
---|
2049 | {
|
---|
2050 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
2051 | }
|
---|
2052 |
|
---|
2053 | SetViewSpaceBox(bbox);
|
---|
2054 | cout << "view space box: " << bbox << endl;
|
---|
2055 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
2056 |
|
---|
2057 | return true;
|
---|
2058 | }
|
---|
2059 |
|
---|
2060 |
|
---|
2061 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
2062 | {
|
---|
2063 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
2064 | return true;
|
---|
2065 | }
|
---|
2066 |
|
---|
2067 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const
|
---|
2068 | {
|
---|
2069 | viewPoint = mViewSpaceBox.GetRandomPoint(params);
|
---|
2070 | return true;
|
---|
2071 | }
|
---|
2072 |
|
---|
2073 |
|
---|
2074 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
2075 | {
|
---|
2076 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
2077 | }
|
---|
2078 |
|
---|
2079 |
|
---|
2080 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
2081 | {
|
---|
2082 | if (!ViewCellsConstructed())
|
---|
2083 | {
|
---|
2084 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
2085 | }
|
---|
2086 | else
|
---|
2087 | {
|
---|
2088 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
2089 | return false;
|
---|
2090 |
|
---|
2091 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
2092 |
|
---|
2093 | if (!viewcell || !viewcell->GetValid())
|
---|
2094 | return false;
|
---|
2095 | }
|
---|
2096 |
|
---|
2097 | return true;
|
---|
2098 | }
|
---|
2099 |
|
---|
2100 |
|
---|
2101 | float
|
---|
2102 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
2103 | const bool addContributions,
|
---|
2104 | const bool storeViewCells,
|
---|
2105 | const bool useHitObjects)
|
---|
2106 | {
|
---|
2107 | float sum = 0.0f;
|
---|
2108 |
|
---|
2109 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
2110 |
|
---|
2111 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
2112 | {
|
---|
2113 | if (!ViewCellsConstructed())
|
---|
2114 | {
|
---|
2115 | // view cells not constructed yet =>
|
---|
2116 | // just take the lenghts of the rays as contributions
|
---|
2117 | if ((*it)->mTerminationObject)
|
---|
2118 | {
|
---|
2119 | sum += (*it)->Length();
|
---|
2120 | }
|
---|
2121 | }
|
---|
2122 | else
|
---|
2123 | {
|
---|
2124 | sum += ComputeSampleContribution(*(*it), addContributions, storeViewCells, useHitObjects);
|
---|
2125 | }
|
---|
2126 | }
|
---|
2127 |
|
---|
2128 | #ifdef PERFTIMER
|
---|
2129 | cout << "view cell cast time: " << viewCellCastTimer.TotalTime() << " s" << endl;
|
---|
2130 | Debug << "view cell cast time: " << viewCellCastTimer.TotalTime() << " s" << endl;
|
---|
2131 |
|
---|
2132 | cout << "pvs time: " << pvsTimer.TotalTime() << " s" << endl;
|
---|
2133 | Debug << "pvs time: " << pvsTimer.TotalTime() << " s" << endl;
|
---|
2134 | #endif
|
---|
2135 | return sum;
|
---|
2136 | }
|
---|
2137 |
|
---|
2138 |
|
---|
2139 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
2140 | {
|
---|
2141 | mCurrentViewCellsStats.Reset();
|
---|
2142 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
2143 |
|
---|
2144 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2145 | {
|
---|
2146 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
2147 | }
|
---|
2148 | }
|
---|
2149 |
|
---|
2150 |
|
---|
2151 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
2152 | float &expectedRenderCost,
|
---|
2153 | float &deviation,
|
---|
2154 | float &variance,
|
---|
2155 | float &totalCost,
|
---|
2156 | float &avgRenderCost)
|
---|
2157 | {
|
---|
2158 | ////////////
|
---|
2159 | //-- compute expected value
|
---|
2160 |
|
---|
2161 | totalRenderCost = 0;
|
---|
2162 | totalCost = 0;
|
---|
2163 |
|
---|
2164 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
2165 |
|
---|
2166 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2167 | {
|
---|
2168 | ViewCell *vc = *it;
|
---|
2169 | totalRenderCost += vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
2170 | totalCost += (int)vc->GetPvs().EvalPvsCost();
|
---|
2171 | }
|
---|
2172 |
|
---|
2173 | // normalize with view space box
|
---|
2174 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
2175 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
2176 | avgRenderCost = totalCost / (float)mViewCells.size();
|
---|
2177 |
|
---|
2178 |
|
---|
2179 | ///////////
|
---|
2180 | //-- compute standard defiation
|
---|
2181 |
|
---|
2182 | variance = 0;
|
---|
2183 | deviation = 0;
|
---|
2184 |
|
---|
2185 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2186 | {
|
---|
2187 | ViewCell *vc = *it;
|
---|
2188 |
|
---|
2189 | float renderCost = vc->GetPvs().EvalPvsCost() * vc->GetVolume();
|
---|
2190 | float dev;
|
---|
2191 |
|
---|
2192 | if (1)
|
---|
2193 | dev = fabs(avgRenderCost - (float)vc->GetPvs().EvalPvsCost());
|
---|
2194 | else
|
---|
2195 | dev = fabs(expectedRenderCost - renderCost);
|
---|
2196 |
|
---|
2197 | deviation += dev;
|
---|
2198 | variance += dev * dev;
|
---|
2199 | }
|
---|
2200 |
|
---|
2201 | variance /= (float)mViewCells.size();
|
---|
2202 | deviation /= (float)mViewCells.size();
|
---|
2203 | }
|
---|
2204 |
|
---|
2205 |
|
---|
2206 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
2207 | {
|
---|
2208 | return viewCell->GetArea();
|
---|
2209 | }
|
---|
2210 |
|
---|
2211 |
|
---|
2212 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
2213 | {
|
---|
2214 | return viewCell->GetVolume();
|
---|
2215 | }
|
---|
2216 |
|
---|
2217 |
|
---|
2218 | void ViewCellsManager::CompressViewCells()
|
---|
2219 | {
|
---|
2220 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
2221 | return;
|
---|
2222 |
|
---|
2223 | ////////////
|
---|
2224 | //-- compression
|
---|
2225 |
|
---|
2226 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
2227 |
|
---|
2228 | cout << "number of entries before compress: " << pvsEntries << endl;
|
---|
2229 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
2230 |
|
---|
2231 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
2232 |
|
---|
2233 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
2234 |
|
---|
2235 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
2236 | cout << "number of entries after compress: " << pvsEntries << endl;
|
---|
2237 | }
|
---|
2238 |
|
---|
2239 |
|
---|
2240 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
2241 | const float height) const
|
---|
2242 | {
|
---|
2243 | // one mesh per view cell
|
---|
2244 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
2245 | //ootl::hash_map<int, Intersectable *> hmap(-2, NULL);
|
---|
2246 | ////////////
|
---|
2247 | //-- construct prism
|
---|
2248 |
|
---|
2249 | // bottom
|
---|
2250 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
2251 | // top
|
---|
2252 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
2253 | // sides
|
---|
2254 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
2255 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
2256 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
2257 |
|
---|
2258 |
|
---|
2259 | /////////////
|
---|
2260 | //-- extrude new vertices for top of prism
|
---|
2261 |
|
---|
2262 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
2263 | Triangle3 topTri;
|
---|
2264 |
|
---|
2265 | // add base vertices and calculate top vertices
|
---|
2266 | for (int i = 0; i < 3; ++ i)
|
---|
2267 | {
|
---|
2268 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
2269 | }
|
---|
2270 |
|
---|
2271 | // add top vertices
|
---|
2272 | for (int i = 0; i < 3; ++ i)
|
---|
2273 | {
|
---|
2274 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
2275 | }
|
---|
2276 |
|
---|
2277 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
2278 | mesh->ComputeBoundingBox();
|
---|
2279 |
|
---|
2280 | return GenerateViewCell(mesh);
|
---|
2281 | }
|
---|
2282 |
|
---|
2283 |
|
---|
2284 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
2285 | {
|
---|
2286 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
2287 |
|
---|
2288 | // volume and area of the view cells are recomputed
|
---|
2289 | // a view cell mesh is created
|
---|
2290 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2291 | {
|
---|
2292 | Finalize(*it, createMesh);
|
---|
2293 | }
|
---|
2294 |
|
---|
2295 | mViewCellsTree->AssignRandomColors();
|
---|
2296 |
|
---|
2297 | mTotalAreaValid = false;
|
---|
2298 | }
|
---|
2299 |
|
---|
2300 |
|
---|
2301 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
2302 | {
|
---|
2303 | // implemented in subclasses
|
---|
2304 | }
|
---|
2305 |
|
---|
2306 |
|
---|
2307 | /** fast way of merging 2 view cells.
|
---|
2308 | */
|
---|
2309 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
2310 | {
|
---|
2311 | // generate parent view cell
|
---|
2312 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
2313 |
|
---|
2314 | vc->GetPvs().Clear();
|
---|
2315 | ObjectPvs::Merge(vc->GetPvs(), left->GetPvs(), right->GetPvs());
|
---|
2316 |
|
---|
2317 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
2318 | vc->mChildren.push_back(left);
|
---|
2319 | vc->mChildren.push_back(right);
|
---|
2320 |
|
---|
2321 | // update pvs size
|
---|
2322 | UpdateScalarPvsSize(vc, vc->GetPvs().EvalPvsCost(), vc->GetPvs().GetSize());
|
---|
2323 |
|
---|
2324 | return vc;
|
---|
2325 | }
|
---|
2326 |
|
---|
2327 |
|
---|
2328 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
2329 | {
|
---|
2330 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
2331 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
2332 |
|
---|
2333 | for (it = children.begin(); it != it_end; ++ it)
|
---|
2334 | {
|
---|
2335 | vc->GetPvs().MergeInPlace((*it)->GetPvs());
|
---|
2336 |
|
---|
2337 | vc->mChildren.push_back(*it);
|
---|
2338 | }
|
---|
2339 |
|
---|
2340 | return vc;
|
---|
2341 | }
|
---|
2342 |
|
---|
2343 |
|
---|
2344 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
2345 | {
|
---|
2346 | mRenderer = renderer;
|
---|
2347 | }
|
---|
2348 |
|
---|
2349 |
|
---|
2350 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
2351 | {
|
---|
2352 | return mViewCellsTree;
|
---|
2353 | }
|
---|
2354 |
|
---|
2355 |
|
---|
2356 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
2357 | {
|
---|
2358 | mVisualizationSamples = visSamples;
|
---|
2359 | }
|
---|
2360 |
|
---|
2361 |
|
---|
2362 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
2363 | {
|
---|
2364 | mConstructionSamples = constructionSamples;
|
---|
2365 | }
|
---|
2366 |
|
---|
2367 |
|
---|
2368 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
2369 | {
|
---|
2370 | mInitialSamples = initialSamples;
|
---|
2371 | }
|
---|
2372 |
|
---|
2373 |
|
---|
2374 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
2375 | {
|
---|
2376 | mPostProcessSamples = postProcessSamples;
|
---|
2377 | }
|
---|
2378 |
|
---|
2379 |
|
---|
2380 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
2381 | {
|
---|
2382 | return mVisualizationSamples;
|
---|
2383 | }
|
---|
2384 |
|
---|
2385 |
|
---|
2386 | int ViewCellsManager::GetConstructionSamples() const
|
---|
2387 | {
|
---|
2388 | return mConstructionSamples;
|
---|
2389 | }
|
---|
2390 |
|
---|
2391 |
|
---|
2392 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
2393 | {
|
---|
2394 | return mPostProcessSamples;
|
---|
2395 | }
|
---|
2396 |
|
---|
2397 |
|
---|
2398 | void ViewCellsManager::UpdatePvs()
|
---|
2399 | {
|
---|
2400 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
2401 | return;
|
---|
2402 |
|
---|
2403 | mViewCellPvsIsUpdated = true;
|
---|
2404 |
|
---|
2405 | ViewCellContainer leaves;
|
---|
2406 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
2407 |
|
---|
2408 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
2409 |
|
---|
2410 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
2411 | {
|
---|
2412 | mViewCellsTree->PropagatePvs(*it);
|
---|
2413 | }
|
---|
2414 | }
|
---|
2415 |
|
---|
2416 |
|
---|
2417 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
2418 | {
|
---|
2419 | // update pvs of view cells tree if necessary
|
---|
2420 | if (0) UpdatePvs();
|
---|
2421 |
|
---|
2422 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
2423 |
|
---|
2424 | stat.viewcells = 0;
|
---|
2425 | stat.minPvs = 100000000;
|
---|
2426 | stat.maxPvs = 0;
|
---|
2427 | stat.avgPvs = 0.0f;
|
---|
2428 | stat.avgPvsEntries = 0.0f;
|
---|
2429 | stat.avgFilteredPvs = 0.0f;
|
---|
2430 | stat.avgFilteredPvsEntries = 0.0f;
|
---|
2431 | stat.avgFilterContribution = 0.0f;
|
---|
2432 | stat.avgFilterRadius = 0;
|
---|
2433 | stat.avgFilterRatio = 0;
|
---|
2434 | stat.avgRelPvsIncrease = 0.0f;
|
---|
2435 | stat.devRelPvsIncrease = 0.0f;
|
---|
2436 | stat.renderCost = 0.0f;
|
---|
2437 | stat.mem = 0.0f;
|
---|
2438 |
|
---|
2439 | if (mPerViewCellStat.size() != mViewCells.size()) {
|
---|
2440 | // reset the pvs size array after the first call to this routine
|
---|
2441 | mPerViewCellStat.resize(mViewCells.size());
|
---|
2442 | for (int i=0; i < mPerViewCellStat.size(); i++) {
|
---|
2443 | mPerViewCellStat[i].pvsSize = 0.0f;
|
---|
2444 | mPerViewCellStat[i].relPvsIncrease = 0.0f;
|
---|
2445 | }
|
---|
2446 | }
|
---|
2447 | int i;
|
---|
2448 | bool evaluateFilter;
|
---|
2449 | Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluateFilter", evaluateFilter);
|
---|
2450 |
|
---|
2451 | const float vol = mViewSpaceBox.GetVolume();
|
---|
2452 |
|
---|
2453 | for (i = 0; it != mViewCells.end(); ++ it, ++ i)
|
---|
2454 | {
|
---|
2455 | ViewCell *viewcell = *it;
|
---|
2456 | if (viewcell->GetValid()) {
|
---|
2457 | const float pvsCost = mViewCellsTree->GetTrianglesInPvs(viewcell);
|
---|
2458 | const float renderCost = pvsCost * viewcell->GetVolume() / vol;
|
---|
2459 |
|
---|
2460 | if (pvsCost < stat.minPvs)
|
---|
2461 | stat.minPvs = pvsCost;
|
---|
2462 | if (pvsCost > stat.maxPvs)
|
---|
2463 | stat.maxPvs = pvsCost;
|
---|
2464 |
|
---|
2465 | stat.avgPvs += pvsCost;
|
---|
2466 | stat.renderCost += renderCost;
|
---|
2467 |
|
---|
2468 | const float pvsEntries = (float)mViewCellsTree->GetPvsEntries(viewcell);
|
---|
2469 | stat.avgPvsEntries += pvsEntries;
|
---|
2470 |
|
---|
2471 | if (mPerViewCellStat[i].pvsSize > 0.0f)
|
---|
2472 | mPerViewCellStat[i].relPvsIncrease = (pvsCost - mPerViewCellStat[i].pvsSize) / mPerViewCellStat[i].pvsSize;
|
---|
2473 |
|
---|
2474 | stat.avgRelPvsIncrease += mPerViewCellStat[i].relPvsIncrease;
|
---|
2475 |
|
---|
2476 | // update the pvs size
|
---|
2477 | mPerViewCellStat[i].pvsSize = pvsCost;
|
---|
2478 |
|
---|
2479 |
|
---|
2480 | if (evaluateFilter)
|
---|
2481 | {
|
---|
2482 | ObjectPvs filteredPvs;
|
---|
2483 |
|
---|
2484 | PvsFilterStatistics fstat = ApplyFilter2(viewcell, false, mFilterWidth, filteredPvs);
|
---|
2485 |
|
---|
2486 | const float filteredCost = filteredPvs.EvalPvsCost();
|
---|
2487 |
|
---|
2488 | stat.avgFilteredPvs += filteredCost;
|
---|
2489 | stat.avgFilteredPvsEntries += filteredPvs.GetSize();
|
---|
2490 |
|
---|
2491 | stat.avgFilterContribution += filteredCost - pvsCost;
|
---|
2492 |
|
---|
2493 | stat.avgFilterRadius += fstat.mAvgFilterRadius;
|
---|
2494 | int sum = fstat.mGlobalFilterCount + fstat.mLocalFilterCount;
|
---|
2495 | if (sum) {
|
---|
2496 | stat.avgFilterRatio += fstat.mLocalFilterCount /
|
---|
2497 | (float) sum;
|
---|
2498 | }
|
---|
2499 |
|
---|
2500 | } else {
|
---|
2501 | stat.avgFilteredPvs += pvsCost;
|
---|
2502 | stat.avgFilterContribution += 0;
|
---|
2503 | }
|
---|
2504 |
|
---|
2505 | ++ stat.viewcells;
|
---|
2506 | }
|
---|
2507 | }
|
---|
2508 |
|
---|
2509 |
|
---|
2510 |
|
---|
2511 | if (stat.viewcells) {
|
---|
2512 | stat.mem = (float)(ObjectPvs::GetEntrySizeByte() * stat.avgPvsEntries + stat.viewcells * 16) / float(1024 * 1024);
|
---|
2513 |
|
---|
2514 | stat.avgPvs/=stat.viewcells;
|
---|
2515 | stat.avgPvsEntries/=stat.viewcells;
|
---|
2516 | stat.avgFilteredPvsEntries/=stat.viewcells;
|
---|
2517 | stat.avgFilteredPvs/=stat.viewcells;
|
---|
2518 | stat.avgFilterContribution/=stat.viewcells;
|
---|
2519 | stat.avgFilterRadius/=stat.viewcells;
|
---|
2520 | stat.avgFilterRatio/=stat.viewcells;
|
---|
2521 | stat.avgRelPvsIncrease/=stat.viewcells;
|
---|
2522 | stat.renderCostRatio=stat.renderCost / stat.mem;
|
---|
2523 |
|
---|
2524 | // evaluate std deviation of relPvsIncrease
|
---|
2525 | float sum=0.0f;
|
---|
2526 | for (i=0; i < stat.viewcells; i++) {
|
---|
2527 | sum += sqr(mPerViewCellStat[i].relPvsIncrease - stat.avgRelPvsIncrease);
|
---|
2528 | }
|
---|
2529 | stat.devRelPvsIncrease = sqrt(sum/stat.viewcells);
|
---|
2530 | }
|
---|
2531 |
|
---|
2532 | }
|
---|
2533 |
|
---|
2534 |
|
---|
2535 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
2536 | {
|
---|
2537 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
2538 | PvsStatistics pvsStat;
|
---|
2539 | GetPvsStatistics(pvsStat);
|
---|
2540 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
2541 | s<<"#AVG_ENTRIES_PVS\n"<<pvsStat.avgPvsEntries<<endl;
|
---|
2542 | s<<"#RENDERCOST\n"<<pvsStat.renderCost<<endl;
|
---|
2543 | s<<"#AVG_FILTERED_PVS\n"<<pvsStat.avgFilteredPvs<<endl;
|
---|
2544 | s<<"#AVG_FILTERED_ENTRIES_PVS\n"<<pvsStat.avgFilteredPvsEntries<<endl;
|
---|
2545 | s<<"#AVG_FILTER_CONTRIBUTION\n"<<pvsStat.avgFilterContribution<<endl;
|
---|
2546 | s<<"#AVG_FILTER_RADIUS\n"<<pvsStat.avgFilterRadius<<endl;
|
---|
2547 | s<<"#AVG_FILTER_RATIO\n"<<pvsStat.avgFilterRatio<<endl;
|
---|
2548 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
2549 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
2550 | s<<"#AVG_REL_PVS_INCREASE\n"<<pvsStat.avgRelPvsIncrease<<endl;
|
---|
2551 | s<<"#DEV_REL_PVS_INCREASE\n"<<pvsStat.devRelPvsIncrease<<endl;
|
---|
2552 | s<<"#MEMORY\n"<<pvsStat.mem<<endl;
|
---|
2553 | s<<"#RATIO\n"<<pvsStat.renderCost / (pvsStat.mem + Limits::Small)<<endl;
|
---|
2554 | s<<"#CONTRIBUTING_RAYS\n"<<mSamplesStat.mContributingRays<<endl;
|
---|
2555 |
|
---|
2556 | if (mSamplesStat.mRays) {
|
---|
2557 | s<<"#AVG_VIEWCELLS_PER_RAY\n"<<mSamplesStat.mViewCells/(float)mSamplesStat.mRays<<endl;
|
---|
2558 | } else {
|
---|
2559 | s<<"#AVG_VIEWCELLS_PER_RAY\n 1 \n";
|
---|
2560 | }
|
---|
2561 | mSamplesStat.Reset();
|
---|
2562 | }
|
---|
2563 |
|
---|
2564 |
|
---|
2565 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
2566 | {
|
---|
2567 | return 0;
|
---|
2568 | }
|
---|
2569 |
|
---|
2570 |
|
---|
2571 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
2572 | {
|
---|
2573 | return mViewCells;
|
---|
2574 | }
|
---|
2575 |
|
---|
2576 |
|
---|
2577 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
2578 | {
|
---|
2579 | mViewSpaceBox = box;
|
---|
2580 |
|
---|
2581 | // hack: create clip plane relative to new view space box
|
---|
2582 | CreateClipPlane();
|
---|
2583 | // the total area of the view space has changed
|
---|
2584 | mTotalAreaValid = false;
|
---|
2585 | }
|
---|
2586 |
|
---|
2587 |
|
---|
2588 | void ViewCellsManager::CreateClipPlane()
|
---|
2589 | {
|
---|
2590 | int axis = 0;
|
---|
2591 | float pos;
|
---|
2592 | bool orientation;
|
---|
2593 | Vector3 absPos;
|
---|
2594 |
|
---|
2595 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
2596 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
2597 |
|
---|
2598 | if (axis < 0)
|
---|
2599 | {
|
---|
2600 | axis = -axis;
|
---|
2601 | orientation = false;
|
---|
2602 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
2603 | }
|
---|
2604 | else
|
---|
2605 | {
|
---|
2606 | orientation = true;
|
---|
2607 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
2608 | }
|
---|
2609 |
|
---|
2610 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
2611 | mClipPlaneForViz.mOrientation = orientation;
|
---|
2612 | }
|
---|
2613 |
|
---|
2614 |
|
---|
2615 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
2616 | {
|
---|
2617 | return mViewSpaceBox;
|
---|
2618 | }
|
---|
2619 |
|
---|
2620 |
|
---|
2621 | void ViewCellsManager::ResetViewCells()
|
---|
2622 | {
|
---|
2623 | // recollect view cells
|
---|
2624 | mViewCells.clear();
|
---|
2625 | CollectViewCells();
|
---|
2626 |
|
---|
2627 | // stats are computed once more
|
---|
2628 | EvaluateViewCellsStats();
|
---|
2629 |
|
---|
2630 | // has to be recomputed
|
---|
2631 | mTotalAreaValid = false;
|
---|
2632 | }
|
---|
2633 |
|
---|
2634 |
|
---|
2635 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
2636 | {
|
---|
2637 | return mMaxPvsSize;
|
---|
2638 | }
|
---|
2639 |
|
---|
2640 |
|
---|
2641 | int ViewCellsManager::GetMinPvsSize() const
|
---|
2642 | {
|
---|
2643 | return mMinPvsSize;
|
---|
2644 | }
|
---|
2645 |
|
---|
2646 |
|
---|
2647 |
|
---|
2648 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
2649 | {
|
---|
2650 | return mMaxPvsRatio;
|
---|
2651 | }
|
---|
2652 |
|
---|
2653 |
|
---|
2654 | inline static void AddSampleToPvs(ObjectPvs &pvs,
|
---|
2655 | Intersectable *obj,
|
---|
2656 | const float pdf)
|
---|
2657 | {
|
---|
2658 | #if PVS_ADD_DIRTY
|
---|
2659 | pvs.AddSampleDirtyCheck(obj, pdf);
|
---|
2660 |
|
---|
2661 | if (pvs.RequiresResort())
|
---|
2662 | {
|
---|
2663 | pvs.SimpleSort();
|
---|
2664 | }
|
---|
2665 | #else
|
---|
2666 | pvs.AddSample(obj, pdf);
|
---|
2667 | #endif
|
---|
2668 | }
|
---|
2669 |
|
---|
2670 |
|
---|
2671 | void ViewCellsManager::SortViewCellPvs()
|
---|
2672 | {
|
---|
2673 | ViewCellContainer::iterator it, it_end = mViewCells.end();
|
---|
2674 |
|
---|
2675 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2676 | {
|
---|
2677 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
2678 | if (pvs.RequiresResortLog())
|
---|
2679 | pvs.SimpleSort();
|
---|
2680 | }
|
---|
2681 | }
|
---|
2682 |
|
---|
2683 |
|
---|
2684 | void ViewCellsManager::UpdateStatsForViewCell(ViewCell *vc, Intersectable *obj)
|
---|
2685 | {
|
---|
2686 | KdIntersectable *kdObj = static_cast<KdIntersectable *>(obj);
|
---|
2687 |
|
---|
2688 | const AxisAlignedBox3 box = kdObj->GetBox();
|
---|
2689 | const float dist = Distance(vc->GetBox().Center(), box.Center());
|
---|
2690 |
|
---|
2691 | float f;
|
---|
2692 |
|
---|
2693 | const float radius = box.Radius();
|
---|
2694 | const float fullRadius = max(0.2f * mViewSpaceBox.Radius(), radius);
|
---|
2695 |
|
---|
2696 | const float minVal = 0.01f;
|
---|
2697 | const float maxVal = 1.0f;
|
---|
2698 |
|
---|
2699 | if (dist <= radius)
|
---|
2700 | f = maxVal;
|
---|
2701 | else if (dist >= fullRadius)
|
---|
2702 | f = minVal;
|
---|
2703 | else // linear blending
|
---|
2704 | {
|
---|
2705 | f = minVal * (dist - radius) / (fullRadius - radius) +
|
---|
2706 | maxVal * (fullRadius - radius - dist) / (fullRadius - radius);
|
---|
2707 | }
|
---|
2708 |
|
---|
2709 | //cout << "x " << radius << " " << dist << " " << fullRadius << " " << f << " " << f * f << endl;
|
---|
2710 |
|
---|
2711 | const int numTriangles = kdObj->ComputeNumTriangles();
|
---|
2712 |
|
---|
2713 | vc->GetPvs().mStats.mDistanceWeightedTriangles += f * numTriangles;
|
---|
2714 | vc->GetPvs().mStats.mDistanceWeightedPvs += f ;
|
---|
2715 | vc->GetPvs().mStats.mWeightedTriangles += numTriangles;
|
---|
2716 | }
|
---|
2717 |
|
---|
2718 |
|
---|
2719 | void ViewCellsManager::ComputeViewCellContribution(ViewCell *viewCell,
|
---|
2720 | VssRay &ray,
|
---|
2721 | Intersectable *obj,
|
---|
2722 | const Vector3 &pt,
|
---|
2723 | const bool addSamplesToPvs)
|
---|
2724 | {
|
---|
2725 | // check if we are outside of view space
|
---|
2726 | // $$JB tmp commented to speedup up computations
|
---|
2727 | #if 0
|
---|
2728 | if (!obj || !viewCell->GetValid())
|
---|
2729 | return;
|
---|
2730 | #endif
|
---|
2731 |
|
---|
2732 | // if ray not outside of view space
|
---|
2733 | float relContribution = 0.0f;
|
---|
2734 | float absContribution = 0.0f;
|
---|
2735 | bool hasAbsContribution;
|
---|
2736 |
|
---|
2737 | // todo: maybe not correct for kd node pvs
|
---|
2738 | if (addSamplesToPvs)
|
---|
2739 | {
|
---|
2740 | hasAbsContribution = viewCell->GetPvs().AddSampleDirtyCheck(obj, ray.mPdf);
|
---|
2741 | //hasAbsContribution = viewCell->GetPvs().AddSample(obj,ray.mPdf);
|
---|
2742 | #if 1
|
---|
2743 | if (hasAbsContribution)
|
---|
2744 | {
|
---|
2745 | UpdateStatsForViewCell(viewCell, obj);
|
---|
2746 | mVizBuffer.AddRay(&ray);
|
---|
2747 | }
|
---|
2748 | #endif
|
---|
2749 |
|
---|
2750 | }
|
---|
2751 | else
|
---|
2752 | {
|
---|
2753 | hasAbsContribution =
|
---|
2754 | viewCell->GetPvs().GetSampleContribution(obj, ray.mPdf, relContribution);
|
---|
2755 | }
|
---|
2756 |
|
---|
2757 | // $$ clear the relative contribution as it is currently not correct anyway
|
---|
2758 | // relContribution = 0.0f;
|
---|
2759 |
|
---|
2760 | if (hasAbsContribution)
|
---|
2761 | {
|
---|
2762 | ++ ray.mPvsContribution;
|
---|
2763 | absContribution = relContribution = 1.0f;
|
---|
2764 |
|
---|
2765 | if (viewCell->GetPvs().RequiresResort())
|
---|
2766 | viewCell->GetPvs().SimpleSort();
|
---|
2767 |
|
---|
2768 | #if CONTRIBUTION_RELATIVE_TO_PVS_SIZE
|
---|
2769 | relContribution /= viewcell->GetPvs().GetSize();
|
---|
2770 | #endif
|
---|
2771 |
|
---|
2772 | #if DIST_WEIGHTED_CONTRIBUTION
|
---|
2773 | // recalculate the contribution - weight the 1.0f contribution by the sqr distance to the
|
---|
2774 | // object-> a new contribution in the proximity of the viewcell has a larger weight!
|
---|
2775 | relContribution /=
|
---|
2776 | SqrDistance(GetViewCellBox(viewcell).Center(), ray.mTermination);
|
---|
2777 |
|
---|
2778 | #endif
|
---|
2779 | }
|
---|
2780 |
|
---|
2781 | #if SUM_RAY_CONTRIBUTIONS || AVG_RAY_CONTRIBUTIONS
|
---|
2782 | ray.mRelativePvsContribution += relContribution;
|
---|
2783 | #else
|
---|
2784 | // recalculate relative contribution - use max of Rel Contribution
|
---|
2785 | if (ray.mRelativePvsContribution < relContribution)
|
---|
2786 | ray.mRelativePvsContribution = relContribution;
|
---|
2787 | #endif
|
---|
2788 | }
|
---|
2789 |
|
---|
2790 |
|
---|
2791 | int ViewCellsManager::GetNumViewCells() const
|
---|
2792 | {
|
---|
2793 | return (int)mViewCells.size();
|
---|
2794 | }
|
---|
2795 |
|
---|
2796 |
|
---|
2797 | void
|
---|
2798 | ViewCellsManager::DeterminePvsObjects(
|
---|
2799 | VssRayContainer &rays,
|
---|
2800 | const bool useHitObjects)
|
---|
2801 | {
|
---|
2802 | if (!useHitObjects)
|
---|
2803 | {
|
---|
2804 | // store higher order object (e.g., bvh node) instead of object itself
|
---|
2805 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
2806 |
|
---|
2807 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
2808 | {
|
---|
2809 | VssRay *vssRay = *it;
|
---|
2810 |
|
---|
2811 | // set only the termination object
|
---|
2812 | vssRay->mTerminationObject = GetIntersectable(*vssRay, true);
|
---|
2813 | }
|
---|
2814 | }
|
---|
2815 | }
|
---|
2816 |
|
---|
2817 |
|
---|
2818 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
2819 | const bool addRays,
|
---|
2820 | ViewCell *currentViewCell,
|
---|
2821 | const bool useHitObjects)
|
---|
2822 | {
|
---|
2823 | ray.mPvsContribution = 0;
|
---|
2824 | ray.mRelativePvsContribution = 0.0f;
|
---|
2825 |
|
---|
2826 | if (!ray.mTerminationObject)
|
---|
2827 | return 0.0f;
|
---|
2828 |
|
---|
2829 | // optain pvs entry (can be different from hit object)
|
---|
2830 | Intersectable *terminationObj;
|
---|
2831 |
|
---|
2832 | terminationObj = ray.mTerminationObject;
|
---|
2833 |
|
---|
2834 | ComputeViewCellContribution(currentViewCell,
|
---|
2835 | ray,
|
---|
2836 | terminationObj,
|
---|
2837 | ray.mTermination,
|
---|
2838 | addRays);
|
---|
2839 |
|
---|
2840 | #if USE_RAY_LENGTH_AS_CONTRIBUTION
|
---|
2841 | float c = 0.0f;
|
---|
2842 | if (terminationObj)
|
---|
2843 | c = ray.Length();
|
---|
2844 |
|
---|
2845 | ray.mRelativePvsContribution = ray.mPvsContribution = c;
|
---|
2846 | return c;
|
---|
2847 | #else
|
---|
2848 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
2849 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
2850 | #endif
|
---|
2851 | }
|
---|
2852 |
|
---|
2853 |
|
---|
2854 | float
|
---|
2855 | ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
2856 | const bool addRays,
|
---|
2857 | const bool storeViewCells,
|
---|
2858 | const bool useHitObjects)
|
---|
2859 | {
|
---|
2860 | ray.mPvsContribution = 0;
|
---|
2861 | ray.mRelativePvsContribution = 0.0f;
|
---|
2862 |
|
---|
2863 | ++ mSamplesStat.mRays;
|
---|
2864 |
|
---|
2865 | if (!ray.mTerminationObject)
|
---|
2866 | return 0.0f;
|
---|
2867 |
|
---|
2868 | static Ray hray;
|
---|
2869 | hray.Init(ray);
|
---|
2870 |
|
---|
2871 | float tmin = 0, tmax = 1.0;
|
---|
2872 |
|
---|
2873 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
2874 | {
|
---|
2875 | // cerr<<"ray outside view space box\n";
|
---|
2876 | return 0;
|
---|
2877 | }
|
---|
2878 |
|
---|
2879 | Vector3 origin = hray.Extrap(tmin);
|
---|
2880 | Vector3 termination = hray.Extrap(tmax);
|
---|
2881 |
|
---|
2882 | ViewCell::NewMail();
|
---|
2883 |
|
---|
2884 | #ifdef PERFTIMER
|
---|
2885 | viewCellCastTimer.Entry();
|
---|
2886 | #endif
|
---|
2887 | static ViewCellContainer viewCells;
|
---|
2888 | static VssRay *lastVssRay = NULL;
|
---|
2889 |
|
---|
2890 | // check if last ray was not same ray with reverse direction
|
---|
2891 | if (1)
|
---|
2892 | // tmp matt: don't use when origin objects are not accounted for, currently the second ray is lost!!
|
---|
2893 | //!lastVssRay ||
|
---|
2894 | //!(ray.mOrigin == lastVssRay->mTermination) ||
|
---|
2895 | //!(ray.mTermination == lastVssRay->mOrigin))
|
---|
2896 | {
|
---|
2897 | viewCells.clear();
|
---|
2898 |
|
---|
2899 | // traverse the view space subdivision
|
---|
2900 | CastLineSegment(origin, termination, viewCells);
|
---|
2901 |
|
---|
2902 | lastVssRay = &ray;
|
---|
2903 | }
|
---|
2904 |
|
---|
2905 | #ifdef PERFTIMER
|
---|
2906 | viewCellCastTimer.Exit();
|
---|
2907 | #endif
|
---|
2908 | mSamplesStat.mViewCells += (int)viewCells.size();
|
---|
2909 |
|
---|
2910 | if (storeViewCells)
|
---|
2911 | {
|
---|
2912 | // cerr << "Store viewcells should not be used in the test!" << endl;
|
---|
2913 | // copy viewcells memory efficiently
|
---|
2914 | #if VSS_STORE_VIEWCELLS
|
---|
2915 | ray.mViewCells.reserve(viewCells.size());
|
---|
2916 | ray.mViewCells = viewCells;
|
---|
2917 | #else
|
---|
2918 | cerr << "Vss store viewcells not supported." << endl;
|
---|
2919 | exit(1);
|
---|
2920 | #endif
|
---|
2921 | }
|
---|
2922 |
|
---|
2923 | Intersectable *terminationObj;
|
---|
2924 |
|
---|
2925 | #ifdef PERFTIMER
|
---|
2926 | objTimer.Entry();
|
---|
2927 | #endif
|
---|
2928 | // obtain pvs entry (can be different from hit object)
|
---|
2929 | terminationObj = ray.mTerminationObject;
|
---|
2930 |
|
---|
2931 | #ifdef PERFTIMER
|
---|
2932 | objTimer.Exit();
|
---|
2933 |
|
---|
2934 | pvsTimer.Entry();
|
---|
2935 | #endif
|
---|
2936 |
|
---|
2937 | ViewCellContainer::const_iterator it = viewCells.begin();
|
---|
2938 |
|
---|
2939 | for (; it != viewCells.end(); ++ it)
|
---|
2940 | {
|
---|
2941 | ComputeViewCellContribution(*it,
|
---|
2942 | ray,
|
---|
2943 | terminationObj,
|
---|
2944 | ray.mTermination,
|
---|
2945 | addRays);
|
---|
2946 | (*it)->IncNumPiercingRays();
|
---|
2947 | }
|
---|
2948 |
|
---|
2949 | #ifdef PERFTIMER
|
---|
2950 | pvsTimer.Exit();
|
---|
2951 | #endif
|
---|
2952 |
|
---|
2953 | mSamplesStat.mPvsContributions += ray.mPvsContribution;
|
---|
2954 | if (ray.mPvsContribution)
|
---|
2955 | ++ mSamplesStat.mContributingRays;
|
---|
2956 |
|
---|
2957 | #if AVG_RAY_CONTRIBUTIONS
|
---|
2958 | ray.mRelativePvsContribution /= (float)viewCells.size();
|
---|
2959 | #endif
|
---|
2960 |
|
---|
2961 | #if USE_RAY_LENGTH_AS_CONTRIBUTION
|
---|
2962 | float c = 0.0f;
|
---|
2963 | if (terminationObj)
|
---|
2964 | c = ray.Length();
|
---|
2965 | ray.mRelativePvsContribution = ray.mPvsContribution = c;
|
---|
2966 | return c;
|
---|
2967 | #else
|
---|
2968 | return ABS_CONTRIBUTION_WEIGHT*ray.mPvsContribution +
|
---|
2969 | (1.0f - ABS_CONTRIBUTION_WEIGHT)*ray.mRelativePvsContribution;
|
---|
2970 | #endif
|
---|
2971 | }
|
---|
2972 |
|
---|
2973 |
|
---|
2974 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
2975 | const int maxSize,
|
---|
2976 | VssRayContainer &usedRays,
|
---|
2977 | VssRayContainer *savedRays) const
|
---|
2978 | {
|
---|
2979 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
2980 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
2981 |
|
---|
2982 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
2983 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
2984 | {
|
---|
2985 | if (Random(1.0f) < prop)
|
---|
2986 | usedRays.push_back(*it);
|
---|
2987 | else if (savedRays)
|
---|
2988 | savedRays->push_back(*it);
|
---|
2989 | }
|
---|
2990 | }
|
---|
2991 |
|
---|
2992 |
|
---|
2993 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
2994 | {
|
---|
2995 | return (float)mViewCellsTree->GetTrianglesInPvs(viewCell);
|
---|
2996 | }
|
---|
2997 |
|
---|
2998 |
|
---|
2999 | float ViewCellsManager::GetAccVcArea()
|
---|
3000 | {
|
---|
3001 | // if already computed
|
---|
3002 | if (mTotalAreaValid)
|
---|
3003 | {
|
---|
3004 | return mTotalArea;
|
---|
3005 | }
|
---|
3006 |
|
---|
3007 | mTotalArea = 0;
|
---|
3008 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3009 |
|
---|
3010 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3011 | {
|
---|
3012 | //Debug << "area: " << GetArea(*it);
|
---|
3013 | mTotalArea += GetArea(*it);
|
---|
3014 | }
|
---|
3015 |
|
---|
3016 | mTotalAreaValid = true;
|
---|
3017 |
|
---|
3018 | return mTotalArea;
|
---|
3019 | }
|
---|
3020 |
|
---|
3021 |
|
---|
3022 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
3023 | {
|
---|
3024 | s << mCurrentViewCellsStats << endl;
|
---|
3025 | }
|
---|
3026 |
|
---|
3027 |
|
---|
3028 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
3029 | {
|
---|
3030 | if (ViewCellsTreeConstructed())
|
---|
3031 | {
|
---|
3032 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
3033 | }
|
---|
3034 | else // no view cells tree, handle view cells "myself"
|
---|
3035 | {
|
---|
3036 | int i = 0;
|
---|
3037 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
3038 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
3039 | {
|
---|
3040 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
3041 | {
|
---|
3042 | mViewCells[i]->SetId(i ++);
|
---|
3043 | }
|
---|
3044 | }
|
---|
3045 | }
|
---|
3046 | }
|
---|
3047 |
|
---|
3048 |
|
---|
3049 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
3050 | const AxisAlignedBox3 *sceneBox,
|
---|
3051 | const bool colorCode,
|
---|
3052 | const AxisAlignedPlane *clipPlane
|
---|
3053 | ) const
|
---|
3054 | {
|
---|
3055 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3056 |
|
---|
3057 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3058 | {
|
---|
3059 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
3060 | {
|
---|
3061 | ExportColor(exporter, *it, colorCode);
|
---|
3062 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
3063 | }
|
---|
3064 | }
|
---|
3065 | }
|
---|
3066 |
|
---|
3067 |
|
---|
3068 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
3069 | {
|
---|
3070 | // convert to meshes
|
---|
3071 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3072 |
|
---|
3073 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3074 | {
|
---|
3075 | if (!(*it)->GetMesh())
|
---|
3076 | {
|
---|
3077 | CreateMesh(*it);
|
---|
3078 | }
|
---|
3079 | }
|
---|
3080 | }
|
---|
3081 |
|
---|
3082 |
|
---|
3083 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
3084 | const bool exportPvs,
|
---|
3085 | const ObjectContainer &objects)
|
---|
3086 | {
|
---|
3087 | return false;
|
---|
3088 | }
|
---|
3089 |
|
---|
3090 |
|
---|
3091 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
3092 | {
|
---|
3093 | mNumActiveViewCells = n;
|
---|
3094 | mViewCells.clear();
|
---|
3095 | // implemented in subclasses
|
---|
3096 | CollectViewCells();
|
---|
3097 | }
|
---|
3098 |
|
---|
3099 |
|
---|
3100 | void ViewCellsManager::SetViewCellActive(ViewCell *vc) const
|
---|
3101 | {
|
---|
3102 | ViewCellContainer leaves;
|
---|
3103 | // sets the pointers to the currently active view cells
|
---|
3104 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
3105 |
|
---|
3106 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
3107 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
3108 | {
|
---|
3109 | static_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(vc);
|
---|
3110 | }
|
---|
3111 | }
|
---|
3112 |
|
---|
3113 |
|
---|
3114 | void ViewCellsManager::SetViewCellsActive()
|
---|
3115 | {
|
---|
3116 | // collect leaf view cells and set the pointers to
|
---|
3117 | // the currently active view cells
|
---|
3118 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3119 |
|
---|
3120 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3121 | {
|
---|
3122 | SetViewCellActive(*it);
|
---|
3123 | }
|
---|
3124 | }
|
---|
3125 |
|
---|
3126 |
|
---|
3127 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
3128 | {
|
---|
3129 | return mMaxFilterSize;
|
---|
3130 | }
|
---|
3131 |
|
---|
3132 |
|
---|
3133 | static const bool USE_ASCII = true;
|
---|
3134 |
|
---|
3135 |
|
---|
3136 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
3137 | const ObjectContainer &objects) const
|
---|
3138 | {
|
---|
3139 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
3140 |
|
---|
3141 | if (USE_ASCII)
|
---|
3142 | {
|
---|
3143 | ofstream boxesOut(filename.c_str());
|
---|
3144 | if (!boxesOut.is_open())
|
---|
3145 | return false;
|
---|
3146 |
|
---|
3147 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
3148 | {
|
---|
3149 | MeshInstance *mi = static_cast<MeshInstance *>(*it);
|
---|
3150 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
3151 |
|
---|
3152 | boxesOut << mi->GetId() << " "
|
---|
3153 | << box.Min().x << " "
|
---|
3154 | << box.Min().y << " "
|
---|
3155 | << box.Min().z << " "
|
---|
3156 | << box.Max().x << " "
|
---|
3157 | << box.Max().y << " "
|
---|
3158 | << box.Max().z << endl;
|
---|
3159 | }
|
---|
3160 |
|
---|
3161 | boxesOut.close();
|
---|
3162 | }
|
---|
3163 | else
|
---|
3164 | {
|
---|
3165 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
3166 |
|
---|
3167 | if (!boxesOut.is_open())
|
---|
3168 | return false;
|
---|
3169 |
|
---|
3170 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
3171 | {
|
---|
3172 | MeshInstance *mi = static_cast<MeshInstance *>(*it);
|
---|
3173 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
3174 |
|
---|
3175 | Vector3 bmin = box.Min();
|
---|
3176 | Vector3 bmax = box.Max();
|
---|
3177 |
|
---|
3178 | int id = mi->GetId();
|
---|
3179 |
|
---|
3180 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
3181 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
3182 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
3183 | }
|
---|
3184 |
|
---|
3185 | boxesOut.close();
|
---|
3186 | }
|
---|
3187 |
|
---|
3188 | return true;
|
---|
3189 | }
|
---|
3190 |
|
---|
3191 |
|
---|
3192 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
3193 | IndexedBoundingBoxContainer &boxes) const
|
---|
3194 | {
|
---|
3195 | Vector3 bmin, bmax;
|
---|
3196 | int id;
|
---|
3197 |
|
---|
3198 | if (USE_ASCII)
|
---|
3199 | {
|
---|
3200 | ifstream boxesIn(filename.c_str());
|
---|
3201 |
|
---|
3202 | if (!boxesIn.is_open())
|
---|
3203 | {
|
---|
3204 | cout << "failed to open file " << filename << endl;
|
---|
3205 | return false;
|
---|
3206 | }
|
---|
3207 |
|
---|
3208 | string buf;
|
---|
3209 | while (!(getline(boxesIn, buf)).eof())
|
---|
3210 | {
|
---|
3211 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
3212 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
3213 | &bmax.x, &bmax.y, &bmax.z);
|
---|
3214 |
|
---|
3215 | AxisAlignedBox3 box(bmin, bmax);
|
---|
3216 | // MeshInstance *mi = new MeshInstance();
|
---|
3217 | // HACK: set bounding box to new box
|
---|
3218 | //mi->mBox = box;
|
---|
3219 |
|
---|
3220 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
3221 | }
|
---|
3222 |
|
---|
3223 | boxesIn.close();
|
---|
3224 | }
|
---|
3225 | else
|
---|
3226 | {
|
---|
3227 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
3228 |
|
---|
3229 | if (!boxesIn.is_open())
|
---|
3230 | return false;
|
---|
3231 |
|
---|
3232 | while (1)
|
---|
3233 | {
|
---|
3234 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
3235 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
3236 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
3237 |
|
---|
3238 | if (boxesIn.eof())
|
---|
3239 | break;
|
---|
3240 |
|
---|
3241 | AxisAlignedBox3 box(bmin, bmax);
|
---|
3242 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
3243 |
|
---|
3244 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
3245 | }
|
---|
3246 |
|
---|
3247 | boxesIn.close();
|
---|
3248 | }
|
---|
3249 |
|
---|
3250 | return true;
|
---|
3251 | }
|
---|
3252 |
|
---|
3253 |
|
---|
3254 | float ViewCellsManager::GetFilterWidth()
|
---|
3255 | {
|
---|
3256 | return mFilterWidth;
|
---|
3257 | }
|
---|
3258 |
|
---|
3259 |
|
---|
3260 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
3261 | {
|
---|
3262 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
3263 | }
|
---|
3264 |
|
---|
3265 |
|
---|
3266 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
3267 | const float pvsCost,
|
---|
3268 | const int entriesInPvs) const
|
---|
3269 | {
|
---|
3270 | vc->mPvsCost = pvsCost;
|
---|
3271 | vc->mEntriesInPvs = entriesInPvs;
|
---|
3272 |
|
---|
3273 | vc->mPvsSizeValid = true;
|
---|
3274 | }
|
---|
3275 |
|
---|
3276 |
|
---|
3277 | void ViewCellsManager::UpdateScalarPvsCost(ViewCell *vc, const float pvsCost) const
|
---|
3278 | {
|
---|
3279 | vc->mPvsCost = pvsCost;
|
---|
3280 | }
|
---|
3281 |
|
---|
3282 |
|
---|
3283 | void
|
---|
3284 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
3285 | KdTree *kdTree,
|
---|
3286 | const float viewSpaceFilterSize,
|
---|
3287 | const float spatialFilterSize,
|
---|
3288 | ObjectPvs &pvs
|
---|
3289 | )
|
---|
3290 | {
|
---|
3291 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
3292 | // and apply spatial filter by including all neighbors of the objects
|
---|
3293 | // in the pvs
|
---|
3294 |
|
---|
3295 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
3296 | // and compute the pvs union
|
---|
3297 |
|
---|
3298 | //Vector3 center = viewCell->GetBox().Center();
|
---|
3299 | // Vector3 center = m->mBox.Center();
|
---|
3300 |
|
---|
3301 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
3302 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
3303 | if (!ViewCellsConstructed())
|
---|
3304 | return;
|
---|
3305 |
|
---|
3306 | if (viewSpaceFilterSize >= 0.0f)
|
---|
3307 | {
|
---|
3308 | const bool usePrVS = false;
|
---|
3309 |
|
---|
3310 | if (!usePrVS)
|
---|
3311 | {
|
---|
3312 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
3313 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
3314 |
|
---|
3315 | ViewCellContainer viewCells;
|
---|
3316 | ComputeBoxIntersections(box, viewCells);
|
---|
3317 |
|
---|
3318 | // cout<<"box="<<box<<endl;
|
---|
3319 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
3320 |
|
---|
3321 | for (; it != it_end; ++ it)
|
---|
3322 | {
|
---|
3323 | ObjectPvs interPvs;
|
---|
3324 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
3325 | ObjectPvs::Merge(interPvs, pvs, (*it)->GetPvs());
|
---|
3326 |
|
---|
3327 | pvs = interPvs;
|
---|
3328 | }
|
---|
3329 | }
|
---|
3330 | else
|
---|
3331 | {
|
---|
3332 | PrVs prvs;
|
---|
3333 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
3334 |
|
---|
3335 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
3336 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
3337 | pvs = prvs.mViewCell->GetPvs();
|
---|
3338 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
3339 | }
|
---|
3340 | }
|
---|
3341 | else
|
---|
3342 | {
|
---|
3343 | pvs = viewCell->GetPvs();
|
---|
3344 | }
|
---|
3345 |
|
---|
3346 | if (spatialFilterSize >=0.0f)
|
---|
3347 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
3348 |
|
---|
3349 | }
|
---|
3350 |
|
---|
3351 |
|
---|
3352 |
|
---|
3353 | void
|
---|
3354 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
3355 | const float relViewSpaceFilterSize,
|
---|
3356 | const float relSpatialFilterSize
|
---|
3357 | )
|
---|
3358 | {
|
---|
3359 |
|
---|
3360 | if (!ViewCellsConstructed())
|
---|
3361 | return;
|
---|
3362 |
|
---|
3363 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3364 |
|
---|
3365 | ObjectPvs *newPvs;
|
---|
3366 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
3367 |
|
---|
3368 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
3369 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
3370 |
|
---|
3371 | int i;
|
---|
3372 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
3373 | ApplyFilter(*it,
|
---|
3374 | kdTree,
|
---|
3375 | viewSpaceFilterSize,
|
---|
3376 | spatialFilterSize,
|
---|
3377 | newPvs[i]
|
---|
3378 | );
|
---|
3379 | }
|
---|
3380 |
|
---|
3381 | // now replace all pvss
|
---|
3382 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
3383 |
|
---|
3384 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
3385 | pvs.Clear();
|
---|
3386 | pvs = newPvs[i];
|
---|
3387 | newPvs[i].Clear();
|
---|
3388 | }
|
---|
3389 |
|
---|
3390 | delete [] newPvs;
|
---|
3391 | }
|
---|
3392 |
|
---|
3393 |
|
---|
3394 | void
|
---|
3395 | ViewCellsManager::ApplySpatialFilter(
|
---|
3396 | KdTree *kdTree,
|
---|
3397 | const float spatialFilterSize,
|
---|
3398 | ObjectPvs &pvs
|
---|
3399 | )
|
---|
3400 | {
|
---|
3401 | // now compute a new Pvs by including also objects intersecting the
|
---|
3402 | // extended boxes of visible objects
|
---|
3403 | Intersectable::NewMail();
|
---|
3404 |
|
---|
3405 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
3406 |
|
---|
3407 | while (pit.HasMoreEntries())
|
---|
3408 | pit.Next()->Mail();
|
---|
3409 |
|
---|
3410 | ObjectPvs nPvs;
|
---|
3411 | int nPvsSize = 0;
|
---|
3412 |
|
---|
3413 | ObjectPvsIterator pit2 = pvs.GetIterator();
|
---|
3414 |
|
---|
3415 | while (pit2.HasMoreEntries())
|
---|
3416 | {
|
---|
3417 | // now go through the pvs again
|
---|
3418 | Intersectable *object = pit2.Next();
|
---|
3419 |
|
---|
3420 | // Vector3 center = object->GetBox().Center();
|
---|
3421 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
3422 | // center + Vector3(spatialFilterSize/2));
|
---|
3423 |
|
---|
3424 | AxisAlignedBox3 box = object->GetBox();
|
---|
3425 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
3426 |
|
---|
3427 | ObjectContainer objects;
|
---|
3428 |
|
---|
3429 | // $$ warning collect objects takes only unmailed ones!
|
---|
3430 | kdTree->CollectObjects(box, objects);
|
---|
3431 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
3432 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
3433 | for (; noi != objects.end(); ++ noi)
|
---|
3434 | {
|
---|
3435 | Intersectable *o = *noi;
|
---|
3436 | cout<<"w";
|
---|
3437 | // $$ JB warning: pdfs are not correct at this point!
|
---|
3438 | nPvs.AddSample(o, Limits::Small);
|
---|
3439 | nPvsSize ++;
|
---|
3440 | }
|
---|
3441 | }
|
---|
3442 |
|
---|
3443 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
3444 | pvs.MergeInPlace(nPvs);
|
---|
3445 | }
|
---|
3446 |
|
---|
3447 |
|
---|
3448 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
3449 | const ViewCellContainer &viewCells) const
|
---|
3450 | {
|
---|
3451 | MergeViewCellsRecursivly(pvs, viewCells, 0, (int)viewCells.size() - 1);
|
---|
3452 | }
|
---|
3453 |
|
---|
3454 |
|
---|
3455 | void ViewCellsManager::MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
3456 | const ViewCellContainer &viewCells,
|
---|
3457 | const int leftIdx,
|
---|
3458 | const int rightIdx) const
|
---|
3459 | {
|
---|
3460 | if (leftIdx == rightIdx)
|
---|
3461 | {
|
---|
3462 | pvs = viewCells[leftIdx]->GetPvs();
|
---|
3463 | }
|
---|
3464 | else
|
---|
3465 | {
|
---|
3466 | const int midSplit = (leftIdx + rightIdx) / 2;
|
---|
3467 |
|
---|
3468 | ObjectPvs leftPvs, rightPvs;
|
---|
3469 | MergeViewCellsRecursivly(leftPvs, viewCells, leftIdx, midSplit);
|
---|
3470 | MergeViewCellsRecursivly(rightPvs, viewCells, midSplit, rightIdx);
|
---|
3471 |
|
---|
3472 | ObjectPvs::Merge(pvs, leftPvs, rightPvs);
|
---|
3473 | }
|
---|
3474 | }
|
---|
3475 |
|
---|
3476 |
|
---|
3477 | PvsFilterStatistics
|
---|
3478 | ViewCellsManager::ApplyFilter2(ViewCell *viewCell,
|
---|
3479 | const bool useViewSpaceFilter,
|
---|
3480 | const float filterSize,
|
---|
3481 | ObjectPvs &pvs,
|
---|
3482 | vector<AxisAlignedBox3> *filteredBoxes,
|
---|
3483 | const bool onlyNewObjects
|
---|
3484 | )
|
---|
3485 | {
|
---|
3486 | pvs.Reserve(viewCell->GetFilteredPvsSize());
|
---|
3487 |
|
---|
3488 | PvsFilterStatistics stats;
|
---|
3489 |
|
---|
3490 | AxisAlignedBox3 vbox = GetViewCellBox(viewCell);
|
---|
3491 | const Vector3 center = vbox.Center();
|
---|
3492 |
|
---|
3493 | // copy the PVS
|
---|
3494 | if (!mUseKdPvs)
|
---|
3495 | Intersectable::NewMail();
|
---|
3496 | else
|
---|
3497 | KdNode::NewMail();
|
---|
3498 |
|
---|
3499 | ObjectPvs basePvs = viewCell->GetPvs();
|
---|
3500 | ObjectPvsIterator pit = basePvs.GetIterator();
|
---|
3501 |
|
---|
3502 | if (!mUseKdPvs)
|
---|
3503 | {
|
---|
3504 | // first mark all objects from this pvs
|
---|
3505 | while (pit.HasMoreEntries())
|
---|
3506 | pit.Next()->Mail();
|
---|
3507 | }
|
---|
3508 |
|
---|
3509 | int pvsSize = 0;
|
---|
3510 | int nPvsSize = 0;
|
---|
3511 |
|
---|
3512 | //Debug<<"f #s="<<samples<<" pvs size = "<<basePvs.GetSize();
|
---|
3513 | // cout<<"Filter size = "<<filterSize<<endl;
|
---|
3514 | // cout<<"vbox = "<<vbox<<endl;
|
---|
3515 | // cout<<"center = "<<center<<endl;
|
---|
3516 |
|
---|
3517 |
|
---|
3518 | // Minimal number of local samples to take into account
|
---|
3519 | // the local sampling density.
|
---|
3520 | // The size of the filter is a minimum of the conservative
|
---|
3521 | // local sampling density estimate (#rays intersecting teh viewcell and
|
---|
3522 | // the object)
|
---|
3523 | // and gobal estimate for the view cell
|
---|
3524 | // (total #rays intersecting the viewcell)
|
---|
3525 | const int minLocalSamples = 2;
|
---|
3526 | const float viewCellRadius = 0.5f * Magnitude(vbox.Diagonal());
|
---|
3527 |
|
---|
3528 | float samples = (float)basePvs.GetSamples();
|
---|
3529 |
|
---|
3530 |
|
---|
3531 | //////////
|
---|
3532 | //-- now compute the filter box around the current viewCell
|
---|
3533 |
|
---|
3534 | if (useViewSpaceFilter)
|
---|
3535 | {
|
---|
3536 | // float radius = Max(viewCellRadius/100.0f, avgRadius - viewCellRadius);
|
---|
3537 | float radius = viewCellRadius / 100.0f;
|
---|
3538 | vbox.Enlarge(radius);
|
---|
3539 | cout<<"vbox = "<<vbox<<endl;
|
---|
3540 |
|
---|
3541 | ViewCellContainer viewCells;
|
---|
3542 | ComputeBoxIntersections(vbox, viewCells);
|
---|
3543 |
|
---|
3544 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
3545 |
|
---|
3546 | for (int i = 0; it != it_end; ++ it, ++ i)
|
---|
3547 | {
|
---|
3548 | if ((*it) != viewCell)
|
---|
3549 | {
|
---|
3550 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
3551 | basePvs.MergeInPlace((*it)->GetPvs());
|
---|
3552 | }
|
---|
3553 |
|
---|
3554 | // update samples and globalC
|
---|
3555 | samples = (float)pvs.GetSamples();
|
---|
3556 | // cout<<"neighboring viewcells = "<<i-1<<endl;
|
---|
3557 | // cout<<"Samples' = "<<samples<<endl;
|
---|
3558 | }
|
---|
3559 | }
|
---|
3560 |
|
---|
3561 | // Minimal number of samples so that filtering takes place
|
---|
3562 | const float MIN_SAMPLES = 50;
|
---|
3563 |
|
---|
3564 | if (samples > MIN_SAMPLES)
|
---|
3565 | {
|
---|
3566 | float globalC = 2.0f * filterSize / sqrt(samples);
|
---|
3567 |
|
---|
3568 | ObjectContainer objects;
|
---|
3569 | PvsData pvsData;
|
---|
3570 |
|
---|
3571 | pit = basePvs.GetIterator();
|
---|
3572 |
|
---|
3573 | if (onlyNewObjects) {
|
---|
3574 | while (pit.HasMoreEntries()) {
|
---|
3575 | // mail all objects from the original not to include them in the
|
---|
3576 | // resulting pvs
|
---|
3577 | Intersectable *obj = pit.Next(pvsData);
|
---|
3578 | obj->Mail();
|
---|
3579 | }
|
---|
3580 | pit = basePvs.GetIterator();
|
---|
3581 | }
|
---|
3582 |
|
---|
3583 | while (pit.HasMoreEntries())
|
---|
3584 | {
|
---|
3585 | Intersectable *object = pit.Next(pvsData);
|
---|
3586 |
|
---|
3587 | // compute filter size based on the distance and the numebr of samples
|
---|
3588 | AxisAlignedBox3 box = object->GetBox();
|
---|
3589 |
|
---|
3590 | float distance = Distance(center, box.Center());
|
---|
3591 | float globalRadius = distance*globalC;
|
---|
3592 |
|
---|
3593 | int objectSamples = (int)pvsData.mSumPdf;
|
---|
3594 | float localRadius = MAX_FLOAT;
|
---|
3595 |
|
---|
3596 | localRadius = filterSize*0.5f*Magnitude(box.Diagonal())/
|
---|
3597 | sqrt((float)objectSamples);
|
---|
3598 |
|
---|
3599 | // cout<<"os="<<objectSamples<<" lr="<<localRadius<<" gr="<<globalRadius<<endl;
|
---|
3600 |
|
---|
3601 | // now compute the filter size
|
---|
3602 | float radius;
|
---|
3603 |
|
---|
3604 | #if 0
|
---|
3605 | if (objectSamples <= 1)
|
---|
3606 | {
|
---|
3607 | if (localRadius > globalRadius)
|
---|
3608 | {
|
---|
3609 | radius = 0.5flRadius;
|
---|
3610 | stats.mLocalFilterCount++;
|
---|
3611 | }
|
---|
3612 | else
|
---|
3613 | {
|
---|
3614 | radius = globalRadius;
|
---|
3615 | stats.mGlobalFilterCount++;
|
---|
3616 | }
|
---|
3617 | }
|
---|
3618 | else
|
---|
3619 | {
|
---|
3620 | radius = localRadius;
|
---|
3621 | stats.mLocalFilterCount++;
|
---|
3622 | }
|
---|
3623 | #else
|
---|
3624 |
|
---|
3625 | // radius = 0.5f*globalRadius + 0.5f*localRadius;
|
---|
3626 | radius = Min(globalRadius, localRadius);
|
---|
3627 |
|
---|
3628 | if (localRadius > globalRadius)
|
---|
3629 | ++ stats.mLocalFilterCount;
|
---|
3630 | else
|
---|
3631 | ++ stats.mGlobalFilterCount;
|
---|
3632 | #endif
|
---|
3633 |
|
---|
3634 | stats.mAvgFilterRadius += radius;
|
---|
3635 |
|
---|
3636 | // cout<<"box = "<<box<<endl;
|
---|
3637 | // cout<<"distance = "<<distance<<endl;
|
---|
3638 | // cout<<"radiues = "<<radius<<endl;
|
---|
3639 |
|
---|
3640 | box.Enlarge(Vector3(radius));
|
---|
3641 |
|
---|
3642 | if (filteredBoxes)
|
---|
3643 | filteredBoxes->push_back(box);
|
---|
3644 |
|
---|
3645 | objects.clear();
|
---|
3646 |
|
---|
3647 | // $$ warning collect objects takes only unmailed ones!
|
---|
3648 | if (mUseKdPvs)
|
---|
3649 | GetPreprocessor()->mKdTree->CollectKdObjects(box, objects);
|
---|
3650 | else
|
---|
3651 | CollectObjects(box, objects);
|
---|
3652 |
|
---|
3653 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
3654 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
3655 | for (; noi != objects.end(); ++ noi)
|
---|
3656 | {
|
---|
3657 | Intersectable *o = *noi;
|
---|
3658 | // $$ JB warning: pdfs are not correct at this point!
|
---|
3659 | pvs.AddSampleDirty(o, Limits::Small);
|
---|
3660 | }
|
---|
3661 | }
|
---|
3662 |
|
---|
3663 | stats.mAvgFilterRadius /= (stats.mLocalFilterCount + stats.mGlobalFilterCount);
|
---|
3664 | }
|
---|
3665 |
|
---|
3666 | //Debug << " nPvs size = " << pvs.GetSize() << endl;
|
---|
3667 |
|
---|
3668 | if (!mUseKdPvs && !onlyNewObjects)
|
---|
3669 | {
|
---|
3670 | PvsData pvsData;
|
---|
3671 |
|
---|
3672 | // copy the base pvs to the new pvs
|
---|
3673 | pit = basePvs.GetIterator();
|
---|
3674 | while (pit.HasMoreEntries())
|
---|
3675 | {
|
---|
3676 | Intersectable *obj = pit.Next(pvsData);
|
---|
3677 | pvs.AddSampleDirty(obj, pvsData.mSumPdf);
|
---|
3678 | }
|
---|
3679 | }
|
---|
3680 |
|
---|
3681 | pvs.SimpleSort();
|
---|
3682 | viewCell->SetFilteredPvsSize(pvs.GetSize());
|
---|
3683 |
|
---|
3684 | // warning: not thread-safe!
|
---|
3685 | if (!mUseKdPvs)
|
---|
3686 | Intersectable::NewMail();
|
---|
3687 |
|
---|
3688 | return stats;
|
---|
3689 | }
|
---|
3690 |
|
---|
3691 |
|
---|
3692 |
|
---|
3693 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
3694 | ViewCell *vc,
|
---|
3695 | int colorCode) const
|
---|
3696 | {
|
---|
3697 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
3698 |
|
---|
3699 | float importance = 0;
|
---|
3700 | static Material m;
|
---|
3701 | //cout << "color code: " << colorCode << endl;
|
---|
3702 |
|
---|
3703 | switch (colorCode)
|
---|
3704 | {
|
---|
3705 | case 0: // Random
|
---|
3706 | {
|
---|
3707 | if (vcValid)
|
---|
3708 | {
|
---|
3709 | m.mDiffuseColor.r = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
3710 | m.mDiffuseColor.g = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
3711 | m.mDiffuseColor.b = 0.2f + RandomValue(0.0f, 0.8f);
|
---|
3712 | }
|
---|
3713 | else
|
---|
3714 | {
|
---|
3715 | m.mDiffuseColor.r = 0.0f;
|
---|
3716 | m.mDiffuseColor.g = 1.0f;
|
---|
3717 | m.mDiffuseColor.b = 0.0f;
|
---|
3718 | }
|
---|
3719 |
|
---|
3720 | exporter->SetForcedMaterial(m);
|
---|
3721 | return;
|
---|
3722 | }
|
---|
3723 |
|
---|
3724 | case 1: // pvs
|
---|
3725 | {
|
---|
3726 | if (mCurrentViewCellsStats.maxPvs)
|
---|
3727 | {
|
---|
3728 | importance = //(float)mViewCellsTree->GetTrianglesInPvs(vc) / 700;
|
---|
3729 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
3730 | }
|
---|
3731 | }
|
---|
3732 | break;
|
---|
3733 | case 2: // merges
|
---|
3734 | {
|
---|
3735 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
3736 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
3737 | }
|
---|
3738 | break;
|
---|
3739 | default:
|
---|
3740 | break;
|
---|
3741 | }
|
---|
3742 |
|
---|
3743 | // special color code for invalid view cells
|
---|
3744 | m.mDiffuseColor.r = importance;
|
---|
3745 | m.mDiffuseColor.b = 1.0f;//vcValid ? 0.0f : 1.0f;
|
---|
3746 | m.mDiffuseColor.g = 1.0f - importance;
|
---|
3747 |
|
---|
3748 | //Debug << "importance: " << importance << endl;
|
---|
3749 | exporter->SetForcedMaterial(m);
|
---|
3750 | }
|
---|
3751 |
|
---|
3752 |
|
---|
3753 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
3754 | vector<MergeCandidate> &candidates)
|
---|
3755 | {
|
---|
3756 | // implemented in subclasses
|
---|
3757 | }
|
---|
3758 |
|
---|
3759 |
|
---|
3760 | void ViewCellsManager::UpdatePvsForEvaluation()
|
---|
3761 | {
|
---|
3762 | ObjectPvs objPvs;
|
---|
3763 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
3764 | }
|
---|
3765 |
|
---|
3766 |
|
---|
3767 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
3768 | {
|
---|
3769 | // terminate traversal
|
---|
3770 | if (root->IsLeaf())
|
---|
3771 | {
|
---|
3772 | // we assume that pvs is explicitly stored in leaves
|
---|
3773 | pvs = root->GetPvs();
|
---|
3774 | UpdateScalarPvsSize(root, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
3775 |
|
---|
3776 | return;
|
---|
3777 | }
|
---|
3778 |
|
---|
3779 | ////////////////
|
---|
3780 | //-- interior node => propagate pvs up the tree
|
---|
3781 |
|
---|
3782 | ViewCellInterior *interior = static_cast<ViewCellInterior *>(root);
|
---|
3783 |
|
---|
3784 | // reset interior pvs
|
---|
3785 | interior->GetPvs().Clear();
|
---|
3786 |
|
---|
3787 | // reset recursive pvs
|
---|
3788 | pvs.Clear();
|
---|
3789 |
|
---|
3790 | // pvss of child nodes
|
---|
3791 | vector<ObjectPvs> pvsList;
|
---|
3792 | pvsList.resize((int)interior->mChildren.size());
|
---|
3793 |
|
---|
3794 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
3795 |
|
---|
3796 | int i = 0;
|
---|
3797 |
|
---|
3798 | ////////
|
---|
3799 | //-- recursivly compute child pvss
|
---|
3800 |
|
---|
3801 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
3802 | {
|
---|
3803 | UpdatePvsForEvaluation(*vit, pvsList[i]);
|
---|
3804 | }
|
---|
3805 |
|
---|
3806 | #if 1
|
---|
3807 | Intersectable::NewMail();
|
---|
3808 |
|
---|
3809 |
|
---|
3810 | ///////////
|
---|
3811 | //-- merge pvss
|
---|
3812 |
|
---|
3813 | PvsData pvsData;
|
---|
3814 |
|
---|
3815 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
3816 |
|
---|
3817 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
3818 | {
|
---|
3819 | ObjectPvsIterator pit = (*oit).GetIterator();
|
---|
3820 |
|
---|
3821 | // add pvss to new pvs: use mailing to avoid adding entries two times.
|
---|
3822 | while (pit.HasMoreEntries())
|
---|
3823 | {
|
---|
3824 | Intersectable *intersect = pit.Next(pvsData);
|
---|
3825 |
|
---|
3826 | if (!intersect->Mailed())
|
---|
3827 | {
|
---|
3828 | intersect->Mail();
|
---|
3829 | pvs.AddSampleDirty(intersect, pvsData.mSumPdf);
|
---|
3830 | }
|
---|
3831 | }
|
---|
3832 | }
|
---|
3833 |
|
---|
3834 | // store pvs in this node
|
---|
3835 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
3836 | {
|
---|
3837 | interior->SetPvs(pvs);
|
---|
3838 | }
|
---|
3839 |
|
---|
3840 | // set new pvs size
|
---|
3841 | UpdateScalarPvsSize(interior, pvs.EvalPvsCost(), pvs.GetSize());
|
---|
3842 |
|
---|
3843 | #else
|
---|
3844 | // really merge cells: slow but sumPdf is correct
|
---|
3845 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
3846 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
3847 | #endif
|
---|
3848 | }
|
---|
3849 |
|
---|
3850 |
|
---|
3851 |
|
---|
3852 | /*******************************************************************/
|
---|
3853 | /* BspViewCellsManager implementation */
|
---|
3854 | /*******************************************************************/
|
---|
3855 |
|
---|
3856 |
|
---|
3857 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
3858 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
3859 | {
|
---|
3860 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
3861 |
|
---|
3862 | mBspTree->SetViewCellsManager(this);
|
---|
3863 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
3864 | }
|
---|
3865 |
|
---|
3866 |
|
---|
3867 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
3868 | {
|
---|
3869 | return mBspTree->GetRoot() != NULL;
|
---|
3870 | }
|
---|
3871 |
|
---|
3872 |
|
---|
3873 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
3874 | {
|
---|
3875 | return new BspViewCell(mesh);
|
---|
3876 | }
|
---|
3877 |
|
---|
3878 |
|
---|
3879 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
3880 | const VssRayContainer &rays)
|
---|
3881 | {
|
---|
3882 | // if view cells were already constructed, we can finish
|
---|
3883 | if (ViewCellsConstructed())
|
---|
3884 | return 0;
|
---|
3885 |
|
---|
3886 | int sampleContributions = 0;
|
---|
3887 |
|
---|
3888 | // construct view cells using the collected samples
|
---|
3889 | RayContainer constructionRays;
|
---|
3890 | VssRayContainer savedRays;
|
---|
3891 |
|
---|
3892 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
3893 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
3894 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
3895 |
|
---|
3896 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
3897 |
|
---|
3898 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
3899 | {
|
---|
3900 | if (Random(1.0f) < prop)
|
---|
3901 | constructionRays.push_back(new Ray(*(*it)));
|
---|
3902 | else
|
---|
3903 | savedRays.push_back(*it);
|
---|
3904 | }
|
---|
3905 |
|
---|
3906 | if (!mUsePredefinedViewCells)
|
---|
3907 | {
|
---|
3908 | // no view cells loaded
|
---|
3909 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
3910 | // collect final view cells
|
---|
3911 | mBspTree->CollectViewCells(mViewCells);
|
---|
3912 | }
|
---|
3913 | else
|
---|
3914 | {
|
---|
3915 | // use predefined view cells geometry =>
|
---|
3916 | // contruct bsp hierarchy over them
|
---|
3917 | mBspTree->Construct(mViewCells);
|
---|
3918 | }
|
---|
3919 |
|
---|
3920 | // destroy rays created only for construction
|
---|
3921 | CLEAR_CONTAINER(constructionRays);
|
---|
3922 |
|
---|
3923 | Debug << mBspTree->GetStatistics() << endl;
|
---|
3924 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
3925 |
|
---|
3926 | // recast rest of the rays
|
---|
3927 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
3928 | ComputeSampleContributions(savedRays, true, false);
|
---|
3929 |
|
---|
3930 | // real meshes are contructed at this stage
|
---|
3931 | if (0)
|
---|
3932 | {
|
---|
3933 | cout << "finalizing view cells ... ";
|
---|
3934 | FinalizeViewCells(true);
|
---|
3935 | cout << "finished" << endl;
|
---|
3936 | }
|
---|
3937 |
|
---|
3938 | return sampleContributions;
|
---|
3939 | }
|
---|
3940 |
|
---|
3941 |
|
---|
3942 | void BspViewCellsManager::CollectViewCells()
|
---|
3943 | {
|
---|
3944 | if (!ViewCellsTreeConstructed())
|
---|
3945 | { // view cells tree constructed
|
---|
3946 | mBspTree->CollectViewCells(mViewCells);
|
---|
3947 | }
|
---|
3948 | else
|
---|
3949 | { // we can use the view cells tree hierarchy to get the right set
|
---|
3950 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
3951 | }
|
---|
3952 | }
|
---|
3953 |
|
---|
3954 |
|
---|
3955 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
3956 | {
|
---|
3957 | if (1)
|
---|
3958 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
3959 | else
|
---|
3960 | // compute view cell area as subsititute for probability
|
---|
3961 | return GetArea(viewCell) / GetAccVcArea();
|
---|
3962 | }
|
---|
3963 |
|
---|
3964 |
|
---|
3965 |
|
---|
3966 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
3967 | const Vector3 &termination,
|
---|
3968 | ViewCellContainer &viewcells)
|
---|
3969 | {
|
---|
3970 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
3971 | }
|
---|
3972 |
|
---|
3973 |
|
---|
3974 | bool BspViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
3975 | const Vector3 &termination,
|
---|
3976 | ViewCell *viewCell)
|
---|
3977 | {
|
---|
3978 | return false;
|
---|
3979 | }
|
---|
3980 |
|
---|
3981 |
|
---|
3982 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
3983 | {
|
---|
3984 | // save color code
|
---|
3985 | const int savedColorCode = mColorCode;
|
---|
3986 |
|
---|
3987 | Exporter *exporter;
|
---|
3988 |
|
---|
3989 | // export merged view cells using pvs color coding
|
---|
3990 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
3991 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
3992 |
|
---|
3993 | if (exporter)
|
---|
3994 | {
|
---|
3995 | if (mExportGeometry)
|
---|
3996 | {
|
---|
3997 | exporter->ExportGeometry(objects);
|
---|
3998 | }
|
---|
3999 |
|
---|
4000 | exporter->SetFilled();
|
---|
4001 | mColorCode = 1;
|
---|
4002 |
|
---|
4003 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
4004 |
|
---|
4005 | delete exporter;
|
---|
4006 | }
|
---|
4007 | cout << "finished" << endl;
|
---|
4008 |
|
---|
4009 | mColorCode = savedColorCode;
|
---|
4010 | }
|
---|
4011 |
|
---|
4012 |
|
---|
4013 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
4014 | const VssRayContainer &rays)
|
---|
4015 | {
|
---|
4016 | if (!ViewCellsConstructed())
|
---|
4017 | {
|
---|
4018 | Debug << "view cells not constructed" << endl;
|
---|
4019 | return 0;
|
---|
4020 | }
|
---|
4021 |
|
---|
4022 | // view cells already finished before post processing step,
|
---|
4023 | // i.e., because they were loaded from disc
|
---|
4024 | if (mViewCellsFinished)
|
---|
4025 | {
|
---|
4026 | FinalizeViewCells(true);
|
---|
4027 | EvaluateViewCellsStats();
|
---|
4028 |
|
---|
4029 | return 0;
|
---|
4030 | }
|
---|
4031 |
|
---|
4032 | //////////////////
|
---|
4033 | //-- merge leaves of the view cell hierarchy
|
---|
4034 |
|
---|
4035 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
4036 | long startTime = GetTime();
|
---|
4037 |
|
---|
4038 | VssRayContainer postProcessRays;
|
---|
4039 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
4040 |
|
---|
4041 | if (mMergeViewCells)
|
---|
4042 | {
|
---|
4043 | cout << "constructing visibility based merge tree" << endl;
|
---|
4044 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
4045 | }
|
---|
4046 | else
|
---|
4047 | {
|
---|
4048 | cout << "constructing spatial merge tree" << endl;
|
---|
4049 | ViewCell *root;
|
---|
4050 | // the spatial merge tree is difficult to build for
|
---|
4051 | // this type of construction, as view cells cover several
|
---|
4052 | // leaves => create dummy tree which is only 2 levels deep
|
---|
4053 | if (mUsePredefinedViewCells)
|
---|
4054 | {
|
---|
4055 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
4056 | }
|
---|
4057 | else
|
---|
4058 | {
|
---|
4059 | // create spatial merge hierarchy
|
---|
4060 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
4061 | }
|
---|
4062 |
|
---|
4063 | mViewCellsTree->SetRoot(root);
|
---|
4064 |
|
---|
4065 | // recompute pvs in the whole hierarchy
|
---|
4066 | ObjectPvs pvs;
|
---|
4067 | UpdatePvsForEvaluation(root, pvs);
|
---|
4068 | }
|
---|
4069 |
|
---|
4070 | cout << "finished" << endl;
|
---|
4071 | cout << "merged view cells in "
|
---|
4072 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
4073 |
|
---|
4074 | Debug << "Postprocessing: Merged view cells in "
|
---|
4075 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
4076 |
|
---|
4077 |
|
---|
4078 | ////////////////////////
|
---|
4079 | //-- visualization and statistics after merge
|
---|
4080 |
|
---|
4081 | if (1)
|
---|
4082 | {
|
---|
4083 | char mstats[100];
|
---|
4084 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
4085 | mViewCellsTree->ExportStats(mstats);
|
---|
4086 | }
|
---|
4087 |
|
---|
4088 | // recompute view cells and stats
|
---|
4089 | ResetViewCells();
|
---|
4090 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
4091 |
|
---|
4092 | // visualization of the view cells
|
---|
4093 | if (1) ExportMergedViewCells(objects);
|
---|
4094 |
|
---|
4095 | // compute final meshes and volume / area
|
---|
4096 | if (1) FinalizeViewCells(true);
|
---|
4097 |
|
---|
4098 | return 0;
|
---|
4099 | }
|
---|
4100 |
|
---|
4101 |
|
---|
4102 | BspViewCellsManager::~BspViewCellsManager()
|
---|
4103 | {
|
---|
4104 | }
|
---|
4105 |
|
---|
4106 |
|
---|
4107 | int BspViewCellsManager::GetType() const
|
---|
4108 | {
|
---|
4109 | return BSP;
|
---|
4110 | }
|
---|
4111 |
|
---|
4112 |
|
---|
4113 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
4114 | const VssRayContainer &sampleRays)
|
---|
4115 | {
|
---|
4116 | if (!ViewCellsConstructed())
|
---|
4117 | return;
|
---|
4118 |
|
---|
4119 | const int savedColorCode = mColorCode;
|
---|
4120 |
|
---|
4121 | if (1) // export final view cells
|
---|
4122 | {
|
---|
4123 | mColorCode = 1; // 0 = pvs, 1 = random
|
---|
4124 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
4125 |
|
---|
4126 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
4127 |
|
---|
4128 | if (exporter)
|
---|
4129 | {
|
---|
4130 | if (mExportGeometry)
|
---|
4131 | {
|
---|
4132 | exporter->ExportGeometry(objects);
|
---|
4133 | }
|
---|
4134 |
|
---|
4135 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
4136 | delete exporter;
|
---|
4137 | }
|
---|
4138 | cout << "finished" << endl;
|
---|
4139 | }
|
---|
4140 |
|
---|
4141 | // reset color code
|
---|
4142 | mColorCode = savedColorCode;
|
---|
4143 |
|
---|
4144 |
|
---|
4145 | //////////////////
|
---|
4146 | //-- visualization of the BSP splits
|
---|
4147 |
|
---|
4148 | bool exportSplits = false;
|
---|
4149 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
4150 |
|
---|
4151 | if (exportSplits)
|
---|
4152 | {
|
---|
4153 | cout << "exporting splits ... ";
|
---|
4154 | ExportSplits(objects);
|
---|
4155 | cout << "finished" << endl;
|
---|
4156 | }
|
---|
4157 |
|
---|
4158 | int leafOut;
|
---|
4159 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
4160 | const int raysOut = 100;
|
---|
4161 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
4162 | }
|
---|
4163 |
|
---|
4164 |
|
---|
4165 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
4166 | {
|
---|
4167 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
4168 |
|
---|
4169 | if (exporter)
|
---|
4170 | {
|
---|
4171 | //exporter->SetFilled();
|
---|
4172 | if (mExportGeometry)
|
---|
4173 | {
|
---|
4174 | exporter->ExportGeometry(objects);
|
---|
4175 | }
|
---|
4176 |
|
---|
4177 | Material m;
|
---|
4178 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
4179 | exporter->SetForcedMaterial(m);
|
---|
4180 | exporter->SetWireframe();
|
---|
4181 |
|
---|
4182 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
4183 |
|
---|
4184 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
4185 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
4186 | exporter->SetForcedMaterial(m);
|
---|
4187 | //exporter->ResetForcedMaterial();
|
---|
4188 |
|
---|
4189 | delete exporter;
|
---|
4190 | }
|
---|
4191 | }
|
---|
4192 |
|
---|
4193 |
|
---|
4194 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
4195 | const int maxViewCells,
|
---|
4196 | const bool sortViewCells,
|
---|
4197 | const bool exportPvs,
|
---|
4198 | const bool exportRays,
|
---|
4199 | const int maxRays,
|
---|
4200 | const string &prefix,
|
---|
4201 | VssRayContainer *visRays)
|
---|
4202 | {
|
---|
4203 | if (sortViewCells)
|
---|
4204 | { // sort view cells to visualize the largest view cells
|
---|
4205 | sort(mViewCells.begin(), mViewCells.end(), LargerRenderCost);
|
---|
4206 | }
|
---|
4207 |
|
---|
4208 | //////////
|
---|
4209 | //-- export visualizations of some view cells
|
---|
4210 |
|
---|
4211 | ViewCell::NewMail();
|
---|
4212 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
4213 |
|
---|
4214 | for (int i = 0; i < limit; ++ i)
|
---|
4215 | {
|
---|
4216 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
4217 | ViewCell *vc = mViewCells[idx];
|
---|
4218 |
|
---|
4219 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
4220 | continue;
|
---|
4221 |
|
---|
4222 | vc->Mail();
|
---|
4223 |
|
---|
4224 | ObjectPvs pvs;
|
---|
4225 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
4226 |
|
---|
4227 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
4228 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
4229 |
|
---|
4230 | cout << "view cell " << idx << ": pvs cost=" << (int)mViewCellsTree->GetTrianglesInPvs(vc) << endl;
|
---|
4231 |
|
---|
4232 | if (exportRays)
|
---|
4233 | {
|
---|
4234 | ////////////
|
---|
4235 | //-- export rays piercing this view cell
|
---|
4236 |
|
---|
4237 | // use rays stored with the view cells
|
---|
4238 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
4239 | VssRayContainer collectRays;
|
---|
4240 |
|
---|
4241 | // collect initial view cells
|
---|
4242 | ViewCellContainer leaves;
|
---|
4243 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
4244 |
|
---|
4245 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
4246 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
4247 | {
|
---|
4248 | // prepare some rays for visualization
|
---|
4249 | VssRayContainer::const_iterator rit, rit_end = (*vit)->GetOrCreateRays()->end();
|
---|
4250 | for (rit = (*vit)->GetOrCreateRays()->begin(); rit != rit_end; ++ rit)
|
---|
4251 | {
|
---|
4252 | collectRays.push_back(*rit);
|
---|
4253 | }
|
---|
4254 | }
|
---|
4255 |
|
---|
4256 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
4257 |
|
---|
4258 | // prepare some rays for visualization
|
---|
4259 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
4260 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
4261 | {
|
---|
4262 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
4263 | if (p < raysOut)
|
---|
4264 | {
|
---|
4265 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
4266 | {
|
---|
4267 | vcRays.push_back(*rit);
|
---|
4268 | }
|
---|
4269 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
4270 | {
|
---|
4271 | vcRays2.push_back(*rit);
|
---|
4272 | }
|
---|
4273 | else
|
---|
4274 | {
|
---|
4275 | vcRays3.push_back(*rit);
|
---|
4276 | }
|
---|
4277 | }
|
---|
4278 | }
|
---|
4279 |
|
---|
4280 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
4281 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
4282 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
4283 | }
|
---|
4284 |
|
---|
4285 | ////////////////
|
---|
4286 | //-- export view cell geometry
|
---|
4287 |
|
---|
4288 | exporter->SetWireframe();
|
---|
4289 |
|
---|
4290 | Material m;//= RandomMaterial();
|
---|
4291 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
4292 | exporter->SetForcedMaterial(m);
|
---|
4293 |
|
---|
4294 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
4295 | exporter->SetFilled();
|
---|
4296 |
|
---|
4297 | if (exportPvs)
|
---|
4298 | {
|
---|
4299 | Intersectable::NewMail();
|
---|
4300 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
4301 |
|
---|
4302 | while (pit.HasMoreEntries())
|
---|
4303 | {
|
---|
4304 | Intersectable *intersect = pit.Next();
|
---|
4305 |
|
---|
4306 | // output PVS of view cell
|
---|
4307 | if (!intersect->Mailed())
|
---|
4308 | {
|
---|
4309 | intersect->Mail();
|
---|
4310 |
|
---|
4311 | m = RandomMaterial();
|
---|
4312 | exporter->SetForcedMaterial(m);
|
---|
4313 | exporter->ExportIntersectable(intersect);
|
---|
4314 | }
|
---|
4315 | }
|
---|
4316 | cout << endl;
|
---|
4317 | }
|
---|
4318 |
|
---|
4319 | DEL_PTR(exporter);
|
---|
4320 | cout << "finished" << endl;
|
---|
4321 | }
|
---|
4322 | }
|
---|
4323 |
|
---|
4324 |
|
---|
4325 | void BspViewCellsManager::TestSubdivision()
|
---|
4326 | {
|
---|
4327 | ViewCellContainer leaves;
|
---|
4328 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
4329 |
|
---|
4330 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
4331 |
|
---|
4332 | const float vol = mViewSpaceBox.GetVolume();
|
---|
4333 | float subdivVol = 0;
|
---|
4334 | float newVol = 0;
|
---|
4335 |
|
---|
4336 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
4337 | {
|
---|
4338 | BspNodeGeometry geom;
|
---|
4339 | mBspTree->ConstructGeometry(*it, geom);
|
---|
4340 |
|
---|
4341 | const float lVol = geom.GetVolume();
|
---|
4342 | newVol += lVol;
|
---|
4343 | subdivVol += (*it)->GetVolume();
|
---|
4344 |
|
---|
4345 | const float thres = 0.9f;
|
---|
4346 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
4347 | (lVol * thres > ((*it)->GetVolume())))
|
---|
4348 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
4349 | }
|
---|
4350 |
|
---|
4351 | Debug << "exact volume: " << vol << endl;
|
---|
4352 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
4353 | Debug << "new volume: " << newVol << endl;
|
---|
4354 | }
|
---|
4355 |
|
---|
4356 |
|
---|
4357 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
4358 | ViewCell *vc,
|
---|
4359 | const AxisAlignedBox3 *sceneBox,
|
---|
4360 | const AxisAlignedPlane *clipPlane
|
---|
4361 | ) const
|
---|
4362 | {
|
---|
4363 | if (clipPlane)
|
---|
4364 | {
|
---|
4365 | const Plane3 plane = clipPlane->GetPlane();
|
---|
4366 |
|
---|
4367 | ViewCellContainer leaves;
|
---|
4368 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
4369 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
4370 |
|
---|
4371 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
4372 | {
|
---|
4373 | BspNodeGeometry geom;
|
---|
4374 | BspNodeGeometry front;
|
---|
4375 | BspNodeGeometry back;
|
---|
4376 |
|
---|
4377 | mBspTree->ConstructGeometry(*it, geom);
|
---|
4378 |
|
---|
4379 | const float eps = 0.0001f;
|
---|
4380 | const int cf = geom.Side(plane, eps);
|
---|
4381 |
|
---|
4382 | if (cf == -1)
|
---|
4383 | {
|
---|
4384 | exporter->ExportPolygons(geom.GetPolys());
|
---|
4385 | }
|
---|
4386 | else if (cf == 0)
|
---|
4387 | {
|
---|
4388 | geom.SplitGeometry(front,
|
---|
4389 | back,
|
---|
4390 | plane,
|
---|
4391 | mViewSpaceBox,
|
---|
4392 | eps);
|
---|
4393 |
|
---|
4394 | if (back.Valid())
|
---|
4395 | {
|
---|
4396 | exporter->ExportPolygons(back.GetPolys());
|
---|
4397 | }
|
---|
4398 | }
|
---|
4399 | }
|
---|
4400 | }
|
---|
4401 | else
|
---|
4402 | {
|
---|
4403 | // export mesh if available
|
---|
4404 | // TODO: some bug here?
|
---|
4405 | if (1 && vc->GetMesh())
|
---|
4406 | {
|
---|
4407 | exporter->ExportMesh(vc->GetMesh());
|
---|
4408 | }
|
---|
4409 | else
|
---|
4410 | {
|
---|
4411 | BspNodeGeometry geom;
|
---|
4412 | mBspTree->ConstructGeometry(vc, geom);
|
---|
4413 | exporter->ExportPolygons(geom.GetPolys());
|
---|
4414 | }
|
---|
4415 | }
|
---|
4416 | }
|
---|
4417 |
|
---|
4418 |
|
---|
4419 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
4420 | {
|
---|
4421 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
4422 | BspNodeGeometry geom;
|
---|
4423 | mBspTree->ConstructGeometry(vc, geom);
|
---|
4424 |
|
---|
4425 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
4426 |
|
---|
4427 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
4428 | mesh->ComputeBoundingBox();
|
---|
4429 |
|
---|
4430 | vc->SetMesh(mesh);
|
---|
4431 | }
|
---|
4432 |
|
---|
4433 |
|
---|
4434 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
4435 | const bool createMesh)
|
---|
4436 | {
|
---|
4437 | float area = 0;
|
---|
4438 | float volume = 0;
|
---|
4439 |
|
---|
4440 | ViewCellContainer leaves;
|
---|
4441 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
4442 |
|
---|
4443 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
4444 |
|
---|
4445 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
4446 | {
|
---|
4447 | BspNodeGeometry geom;
|
---|
4448 |
|
---|
4449 | mBspTree->ConstructGeometry(*it, geom);
|
---|
4450 |
|
---|
4451 | const float lVol = geom.GetVolume();
|
---|
4452 | const float lArea = geom.GetArea();
|
---|
4453 |
|
---|
4454 | area += lArea;
|
---|
4455 | volume += lVol;
|
---|
4456 |
|
---|
4457 | CreateMesh(*it);
|
---|
4458 | }
|
---|
4459 |
|
---|
4460 | viewCell->SetVolume(volume);
|
---|
4461 | viewCell->SetArea(area);
|
---|
4462 | }
|
---|
4463 |
|
---|
4464 |
|
---|
4465 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
4466 | {
|
---|
4467 | if (!ViewCellsConstructed())
|
---|
4468 | {
|
---|
4469 | return NULL;
|
---|
4470 | }
|
---|
4471 | if (!mViewSpaceBox.IsInside(point))
|
---|
4472 | {
|
---|
4473 | return NULL;
|
---|
4474 | }
|
---|
4475 | return mBspTree->GetViewCell(point);
|
---|
4476 | }
|
---|
4477 |
|
---|
4478 |
|
---|
4479 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
4480 | vector<MergeCandidate> &candidates)
|
---|
4481 | {
|
---|
4482 | cout << "collecting merge candidates ... " << endl;
|
---|
4483 |
|
---|
4484 | if (mUseRaysForMerge)
|
---|
4485 | {
|
---|
4486 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
4487 | }
|
---|
4488 | else
|
---|
4489 | {
|
---|
4490 | vector<BspLeaf *> leaves;
|
---|
4491 | mBspTree->CollectLeaves(leaves);
|
---|
4492 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
4493 | }
|
---|
4494 |
|
---|
4495 | cout << "fininshed collecting candidates" << endl;
|
---|
4496 | }
|
---|
4497 |
|
---|
4498 |
|
---|
4499 |
|
---|
4500 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
4501 | const bool exportPvs,
|
---|
4502 | const ObjectContainer &objects)
|
---|
4503 | {
|
---|
4504 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
4505 | {
|
---|
4506 | return false;
|
---|
4507 | }
|
---|
4508 |
|
---|
4509 | cout << "exporting view cells to xml ... ";
|
---|
4510 |
|
---|
4511 | OUT_STREAM stream(filename.c_str());
|
---|
4512 |
|
---|
4513 | // we need unique ids for each view cell
|
---|
4514 | CreateUniqueViewCellIds();
|
---|
4515 |
|
---|
4516 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
4517 | stream << "<VisibilitySolution>" << endl;
|
---|
4518 |
|
---|
4519 | if (exportPvs)
|
---|
4520 | {
|
---|
4521 | //////////
|
---|
4522 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
4523 | //-- assign them to the entities in the rendering engine
|
---|
4524 |
|
---|
4525 | stream << "<BoundingBoxes>" << endl;
|
---|
4526 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
4527 |
|
---|
4528 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
4529 | {
|
---|
4530 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
4531 |
|
---|
4532 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
4533 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
4534 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
4535 | }
|
---|
4536 |
|
---|
4537 | stream << "</BoundingBoxes>" << endl;
|
---|
4538 | }
|
---|
4539 |
|
---|
4540 | ///////////
|
---|
4541 | //-- export the view cells and the pvs
|
---|
4542 |
|
---|
4543 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
4544 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
4545 |
|
---|
4546 | mViewCellsTree->Export(stream, exportPvs);
|
---|
4547 |
|
---|
4548 | stream << "</ViewCells>" << endl;
|
---|
4549 |
|
---|
4550 | /////////////
|
---|
4551 | //-- export the view space hierarchy
|
---|
4552 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
4553 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
4554 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
4555 |
|
---|
4556 | mBspTree->Export(stream);
|
---|
4557 |
|
---|
4558 | // end tags
|
---|
4559 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
4560 | stream << "</VisibilitySolution>" << endl;
|
---|
4561 |
|
---|
4562 | stream.close();
|
---|
4563 | cout << "finished" << endl;
|
---|
4564 |
|
---|
4565 | return true;
|
---|
4566 | }
|
---|
4567 |
|
---|
4568 |
|
---|
4569 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
4570 | {
|
---|
4571 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
4572 |
|
---|
4573 | // evaluate merge cost for priority traversal
|
---|
4574 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
4575 | vcRoot->SetMergeCost(mergeCost);
|
---|
4576 |
|
---|
4577 | float volume = 0;
|
---|
4578 | vector<BspLeaf *> leaves;
|
---|
4579 | mBspTree->CollectLeaves(leaves);
|
---|
4580 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
4581 | ViewCell::NewMail();
|
---|
4582 |
|
---|
4583 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
4584 | {
|
---|
4585 | BspLeaf *leaf = *lit;
|
---|
4586 | ViewCell *vc = leaf->GetViewCell();
|
---|
4587 |
|
---|
4588 | if (!vc->Mailed())
|
---|
4589 | {
|
---|
4590 | vc->Mail();
|
---|
4591 | vc->SetMergeCost(0.0f);
|
---|
4592 | vcRoot->SetupChildLink(vc);
|
---|
4593 |
|
---|
4594 | volume += vc->GetVolume();
|
---|
4595 | volume += vc->GetVolume();
|
---|
4596 | vcRoot->SetVolume(volume);
|
---|
4597 | }
|
---|
4598 | }
|
---|
4599 |
|
---|
4600 | return vcRoot;
|
---|
4601 | }
|
---|
4602 |
|
---|
4603 |
|
---|
4604 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
4605 | {
|
---|
4606 | // terminate recursion
|
---|
4607 | if (root->IsLeaf())
|
---|
4608 | {
|
---|
4609 | BspLeaf *leaf = static_cast<BspLeaf *>(root);
|
---|
4610 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
4611 | return leaf->GetViewCell();
|
---|
4612 | }
|
---|
4613 |
|
---|
4614 | BspInterior *interior = static_cast<BspInterior *>(root);
|
---|
4615 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
4616 |
|
---|
4617 | // evaluate merge cost for priority traversal
|
---|
4618 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
4619 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
4620 |
|
---|
4621 | float volume = 0;
|
---|
4622 |
|
---|
4623 | BspNode *front = interior->GetFront();
|
---|
4624 | BspNode *back = interior->GetBack();
|
---|
4625 |
|
---|
4626 |
|
---|
4627 | ////////////
|
---|
4628 | //-- recursivly compute child hierarchies
|
---|
4629 |
|
---|
4630 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
4631 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
4632 |
|
---|
4633 | viewCellInterior->SetupChildLink(backVc);
|
---|
4634 | viewCellInterior->SetupChildLink(frontVc);
|
---|
4635 |
|
---|
4636 | volume += backVc->GetVolume();
|
---|
4637 | volume += frontVc->GetVolume();
|
---|
4638 |
|
---|
4639 | viewCellInterior->SetVolume(volume);
|
---|
4640 |
|
---|
4641 | return viewCellInterior;
|
---|
4642 | }
|
---|
4643 |
|
---|
4644 |
|
---|
4645 | /************************************************************************/
|
---|
4646 | /* KdViewCellsManager implementation */
|
---|
4647 | /************************************************************************/
|
---|
4648 |
|
---|
4649 |
|
---|
4650 |
|
---|
4651 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
4652 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
4653 | {
|
---|
4654 | }
|
---|
4655 |
|
---|
4656 |
|
---|
4657 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
4658 | {
|
---|
4659 | // compute view cell area / volume as subsititute for probability
|
---|
4660 | if (0)
|
---|
4661 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
4662 | else
|
---|
4663 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
4664 | }
|
---|
4665 |
|
---|
4666 |
|
---|
4667 |
|
---|
4668 |
|
---|
4669 | void KdViewCellsManager::CollectViewCells()
|
---|
4670 | {
|
---|
4671 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
4672 | }
|
---|
4673 |
|
---|
4674 |
|
---|
4675 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
4676 | const VssRayContainer &rays)
|
---|
4677 | {
|
---|
4678 | // if view cells already constructed
|
---|
4679 | if (ViewCellsConstructed())
|
---|
4680 | return 0;
|
---|
4681 |
|
---|
4682 | mKdTree->Construct();
|
---|
4683 |
|
---|
4684 | mTotalAreaValid = false;
|
---|
4685 | // create the view cells
|
---|
4686 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
4687 | // cast rays
|
---|
4688 | ComputeSampleContributions(rays, true, false);
|
---|
4689 |
|
---|
4690 | EvaluateViewCellsStats();
|
---|
4691 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
4692 |
|
---|
4693 | return 0;
|
---|
4694 | }
|
---|
4695 |
|
---|
4696 |
|
---|
4697 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
4698 | {
|
---|
4699 | return mKdTree->GetRoot() != NULL;
|
---|
4700 | }
|
---|
4701 |
|
---|
4702 |
|
---|
4703 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
4704 | const VssRayContainer &rays)
|
---|
4705 | {
|
---|
4706 | return 0;
|
---|
4707 | }
|
---|
4708 |
|
---|
4709 |
|
---|
4710 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
4711 | const int maxViewCells,
|
---|
4712 | const bool sortViewCells,
|
---|
4713 | const bool exportPvs,
|
---|
4714 | const bool exportRays,
|
---|
4715 | const int maxRays,
|
---|
4716 | const string &prefix,
|
---|
4717 | VssRayContainer *visRays)
|
---|
4718 | {
|
---|
4719 | // TODO
|
---|
4720 | }
|
---|
4721 |
|
---|
4722 |
|
---|
4723 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
4724 | const VssRayContainer &sampleRays)
|
---|
4725 | {
|
---|
4726 | if (!ViewCellsConstructed())
|
---|
4727 | return;
|
---|
4728 |
|
---|
4729 | // using view cells instead of the kd PVS of objects
|
---|
4730 | const bool useViewCells = true;
|
---|
4731 | bool exportRays = false;
|
---|
4732 |
|
---|
4733 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
4734 | const int pvsOut = min((int)objects.size(), 10);
|
---|
4735 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
4736 |
|
---|
4737 | if (useViewCells)
|
---|
4738 | {
|
---|
4739 | const int leafOut = 10;
|
---|
4740 |
|
---|
4741 | ViewCell::NewMail();
|
---|
4742 |
|
---|
4743 | //-- some rays for visualization
|
---|
4744 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
4745 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
4746 |
|
---|
4747 | //-- some random view cells and rays for visualization
|
---|
4748 | vector<KdLeaf *> kdLeaves;
|
---|
4749 |
|
---|
4750 | for (int i = 0; i < leafOut; ++ i)
|
---|
4751 | kdLeaves.push_back(static_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
4752 |
|
---|
4753 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
4754 | {
|
---|
4755 | KdLeaf *leaf = kdLeaves[i];
|
---|
4756 | RayContainer vcRays;
|
---|
4757 |
|
---|
4758 | cout << "creating output for view cell " << i << " ... ";
|
---|
4759 | #if 0
|
---|
4760 | // check whether we can add the current ray to the output rays
|
---|
4761 | for (int k = 0; k < raysOut; ++ k)
|
---|
4762 | {
|
---|
4763 | Ray *ray = sampleRays[k];
|
---|
4764 |
|
---|
4765 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
4766 | {
|
---|
4767 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
4768 |
|
---|
4769 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
4770 | {
|
---|
4771 | vcRays.push_back(ray);
|
---|
4772 | }
|
---|
4773 | }
|
---|
4774 | }
|
---|
4775 | #endif
|
---|
4776 | Intersectable::NewMail();
|
---|
4777 |
|
---|
4778 | ViewCell *vc = leaf->mViewCell;
|
---|
4779 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
4780 |
|
---|
4781 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
4782 | exporter->SetFilled();
|
---|
4783 |
|
---|
4784 | exporter->SetWireframe();
|
---|
4785 | //exporter->SetFilled();
|
---|
4786 |
|
---|
4787 | Material m;//= RandomMaterial();
|
---|
4788 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
4789 | exporter->SetForcedMaterial(m);
|
---|
4790 |
|
---|
4791 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
4792 | exporter->ExportBox(box);
|
---|
4793 |
|
---|
4794 | // export rays piercing this view cell
|
---|
4795 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
4796 |
|
---|
4797 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
4798 | exporter->SetForcedMaterial(m);
|
---|
4799 |
|
---|
4800 | // exporter->SetWireframe();
|
---|
4801 | exporter->SetFilled();
|
---|
4802 |
|
---|
4803 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
4804 |
|
---|
4805 | while (pit.HasMoreEntries())
|
---|
4806 | {
|
---|
4807 | //-- output PVS of view cell
|
---|
4808 | Intersectable *intersect = pit.Next();
|
---|
4809 |
|
---|
4810 | if (!intersect->Mailed())
|
---|
4811 | {
|
---|
4812 | exporter->ExportIntersectable(intersect);
|
---|
4813 | intersect->Mail();
|
---|
4814 | }
|
---|
4815 | }
|
---|
4816 |
|
---|
4817 | DEL_PTR(exporter);
|
---|
4818 | cout << "finished" << endl;
|
---|
4819 | }
|
---|
4820 |
|
---|
4821 | DEL_PTR(rays);
|
---|
4822 | }
|
---|
4823 | else // using kd PVS of objects
|
---|
4824 | {
|
---|
4825 | for (int i = 0; i < limit; ++ i)
|
---|
4826 | {
|
---|
4827 | VssRay *ray = sampleRays[i];
|
---|
4828 |
|
---|
4829 | // check whether we can add this to the rays
|
---|
4830 | for (int j = 0; j < pvsOut; j++)
|
---|
4831 | {
|
---|
4832 | if (objects[j] == ray->mTerminationObject)
|
---|
4833 | {
|
---|
4834 | rays[j].push_back(ray);
|
---|
4835 | }
|
---|
4836 | }
|
---|
4837 | }
|
---|
4838 |
|
---|
4839 | if (exportRays)
|
---|
4840 | {
|
---|
4841 | Exporter *exporter = NULL;
|
---|
4842 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
4843 | exporter->SetWireframe();
|
---|
4844 | exporter->ExportKdTree(*mKdTree);
|
---|
4845 |
|
---|
4846 | for (int i = 0; i < pvsOut; i++)
|
---|
4847 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
4848 |
|
---|
4849 | exporter->SetFilled();
|
---|
4850 | delete exporter;
|
---|
4851 | }
|
---|
4852 |
|
---|
4853 | for (int k=0; k < pvsOut; k++)
|
---|
4854 | {
|
---|
4855 | Intersectable *object = objects[k];
|
---|
4856 | char str[64]; sprintf(str, "viewcell%04d.wrl", k);
|
---|
4857 |
|
---|
4858 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
4859 | exporter->SetWireframe();
|
---|
4860 |
|
---|
4861 | // matt: we do not use kd pvs
|
---|
4862 | #if 0
|
---|
4863 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
4864 | Intersectable::NewMail();
|
---|
4865 |
|
---|
4866 | // avoid adding the object to the list
|
---|
4867 | object->Mail();
|
---|
4868 | ObjectContainer visibleObjects;
|
---|
4869 |
|
---|
4870 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
4871 | {
|
---|
4872 | KdNode *node = (*kit).first;
|
---|
4873 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
4874 |
|
---|
4875 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
4876 | }
|
---|
4877 |
|
---|
4878 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
4879 | exporter->SetFilled();
|
---|
4880 |
|
---|
4881 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
4882 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
4883 |
|
---|
4884 | Material m;
|
---|
4885 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
4886 | exporter->SetForcedMaterial(m);
|
---|
4887 | exporter->ExportIntersectable(object);
|
---|
4888 | #endif
|
---|
4889 | delete exporter;
|
---|
4890 | }
|
---|
4891 | }
|
---|
4892 | }
|
---|
4893 |
|
---|
4894 |
|
---|
4895 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
4896 | {
|
---|
4897 | return new KdViewCell(mesh);
|
---|
4898 | }
|
---|
4899 |
|
---|
4900 |
|
---|
4901 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
4902 | ViewCell *vc,
|
---|
4903 | const AxisAlignedBox3 *sceneBox,
|
---|
4904 | const AxisAlignedPlane *clipPlane
|
---|
4905 | ) const
|
---|
4906 | {
|
---|
4907 | ViewCellContainer leaves;
|
---|
4908 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
4909 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
4910 |
|
---|
4911 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
4912 | {
|
---|
4913 | KdViewCell *kdVc = static_cast<KdViewCell *>(*it);
|
---|
4914 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
4915 | }
|
---|
4916 | }
|
---|
4917 |
|
---|
4918 |
|
---|
4919 | int KdViewCellsManager::GetType() const
|
---|
4920 | {
|
---|
4921 | return ViewCellsManager::KD;
|
---|
4922 | }
|
---|
4923 |
|
---|
4924 |
|
---|
4925 |
|
---|
4926 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
4927 | {
|
---|
4928 | KdNode *node = leaf;
|
---|
4929 |
|
---|
4930 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
4931 | node = node->mParent;
|
---|
4932 |
|
---|
4933 | return node;
|
---|
4934 | }
|
---|
4935 |
|
---|
4936 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
4937 | const Vector3 &termination,
|
---|
4938 | ViewCellContainer &viewcells)
|
---|
4939 | {
|
---|
4940 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
4941 | }
|
---|
4942 |
|
---|
4943 |
|
---|
4944 | bool KdViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
4945 | const Vector3 &termination,
|
---|
4946 | ViewCell *viewCell)
|
---|
4947 | {
|
---|
4948 | return false;
|
---|
4949 | }
|
---|
4950 |
|
---|
4951 |
|
---|
4952 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
4953 | {
|
---|
4954 | // TODO
|
---|
4955 | }
|
---|
4956 |
|
---|
4957 |
|
---|
4958 |
|
---|
4959 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
4960 | vector<MergeCandidate> &candidates)
|
---|
4961 | {
|
---|
4962 | // TODO
|
---|
4963 | }
|
---|
4964 |
|
---|
4965 |
|
---|
4966 |
|
---|
4967 | /**************************************************************************/
|
---|
4968 | /* VspBspViewCellsManager implementation */
|
---|
4969 | /**************************************************************************/
|
---|
4970 |
|
---|
4971 |
|
---|
4972 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
4973 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
4974 | {
|
---|
4975 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
4976 | mVspBspTree->SetViewCellsManager(this);
|
---|
4977 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
4978 | }
|
---|
4979 |
|
---|
4980 |
|
---|
4981 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
4982 | {
|
---|
4983 | }
|
---|
4984 |
|
---|
4985 |
|
---|
4986 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
4987 | {
|
---|
4988 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
4989 | return GetArea(viewCell) / GetAccVcArea();
|
---|
4990 | else
|
---|
4991 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
4992 | }
|
---|
4993 |
|
---|
4994 |
|
---|
4995 | void VspBspViewCellsManager::CollectViewCells()
|
---|
4996 | {
|
---|
4997 | // view cells tree constructed?
|
---|
4998 | if (!ViewCellsTreeConstructed())
|
---|
4999 | {
|
---|
5000 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
5001 | }
|
---|
5002 | else
|
---|
5003 | {
|
---|
5004 | // we can use the view cells tree hierarchy to get the right set
|
---|
5005 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
5006 | }
|
---|
5007 | }
|
---|
5008 |
|
---|
5009 |
|
---|
5010 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
5011 | vector<MergeCandidate> &candidates)
|
---|
5012 | {
|
---|
5013 | cout << "collecting merge candidates ... " << endl;
|
---|
5014 |
|
---|
5015 | if (mUseRaysForMerge)
|
---|
5016 | {
|
---|
5017 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
5018 | }
|
---|
5019 | else
|
---|
5020 | {
|
---|
5021 | vector<BspLeaf *> leaves;
|
---|
5022 | mVspBspTree->CollectLeaves(leaves);
|
---|
5023 |
|
---|
5024 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
5025 | }
|
---|
5026 |
|
---|
5027 | cout << "fininshed collecting candidates" << endl;
|
---|
5028 | }
|
---|
5029 |
|
---|
5030 |
|
---|
5031 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
5032 | {
|
---|
5033 | return mVspBspTree->GetRoot() != NULL;
|
---|
5034 | }
|
---|
5035 |
|
---|
5036 |
|
---|
5037 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
5038 | {
|
---|
5039 | return new BspViewCell(mesh);
|
---|
5040 | }
|
---|
5041 |
|
---|
5042 |
|
---|
5043 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
5044 | const VssRayContainer &rays)
|
---|
5045 | {
|
---|
5046 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
5047 |
|
---|
5048 | // if view cells were already constructed
|
---|
5049 | if (ViewCellsConstructed())
|
---|
5050 | {
|
---|
5051 | return 0;
|
---|
5052 | }
|
---|
5053 |
|
---|
5054 | int sampleContributions = 0;
|
---|
5055 | VssRayContainer sampleRays;
|
---|
5056 |
|
---|
5057 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
5058 |
|
---|
5059 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
5060 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
5061 |
|
---|
5062 | VssRayContainer savedRays;
|
---|
5063 |
|
---|
5064 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
5065 | {
|
---|
5066 | VssRayContainer constructionRays;
|
---|
5067 |
|
---|
5068 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
5069 |
|
---|
5070 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
5071 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
5072 |
|
---|
5073 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
5074 | }
|
---|
5075 | else
|
---|
5076 | {
|
---|
5077 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
5078 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
5079 | }
|
---|
5080 |
|
---|
5081 | // collapse invalid regions
|
---|
5082 | cout << "collapsing invalid tree regions ... ";
|
---|
5083 | long startTime = GetTime();
|
---|
5084 |
|
---|
5085 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
5086 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
5087 | << " seconds" << endl;
|
---|
5088 |
|
---|
5089 | cout << "finished" << endl;
|
---|
5090 |
|
---|
5091 | /////////////////
|
---|
5092 | //-- stats after construction
|
---|
5093 |
|
---|
5094 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
5095 |
|
---|
5096 | ResetViewCells();
|
---|
5097 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
5098 |
|
---|
5099 |
|
---|
5100 | //////////////////////
|
---|
5101 | //-- recast the rest of the rays
|
---|
5102 |
|
---|
5103 | startTime = GetTime();
|
---|
5104 |
|
---|
5105 | cout << "Computing remaining ray contributions ... ";
|
---|
5106 |
|
---|
5107 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
5108 | ComputeSampleContributions(savedRays, true, false);
|
---|
5109 |
|
---|
5110 | cout << "finished" << endl;
|
---|
5111 |
|
---|
5112 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
5113 | << " secs" << endl;
|
---|
5114 |
|
---|
5115 | cout << "construction finished" << endl;
|
---|
5116 |
|
---|
5117 | if (0)
|
---|
5118 | { ////////
|
---|
5119 | //-- real meshes are contructed at this stage
|
---|
5120 |
|
---|
5121 | cout << "finalizing view cells ... ";
|
---|
5122 | FinalizeViewCells(true);
|
---|
5123 | cout << "finished" << endl;
|
---|
5124 | }
|
---|
5125 |
|
---|
5126 | return sampleContributions;
|
---|
5127 | }
|
---|
5128 |
|
---|
5129 |
|
---|
5130 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
5131 | const ObjectContainer &objects)
|
---|
5132 | {
|
---|
5133 | int vcSize = 0;
|
---|
5134 | int pvsSize = 0;
|
---|
5135 |
|
---|
5136 | //-- merge view cells
|
---|
5137 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
5138 | long startTime = GetTime();
|
---|
5139 |
|
---|
5140 |
|
---|
5141 | if (mMergeViewCells)
|
---|
5142 | {
|
---|
5143 | // TODO: should be done BEFORE the ray casting
|
---|
5144 | // compute tree by merging the nodes based on cost heuristics
|
---|
5145 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
5146 | }
|
---|
5147 | else
|
---|
5148 | {
|
---|
5149 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
5150 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
5151 | mViewCellsTree->SetRoot(root);
|
---|
5152 |
|
---|
5153 | // compute pvs
|
---|
5154 | ObjectPvs pvs;
|
---|
5155 | UpdatePvsForEvaluation(root, pvs);
|
---|
5156 | }
|
---|
5157 |
|
---|
5158 | if (1)
|
---|
5159 | {
|
---|
5160 | char mstats[100];
|
---|
5161 | ObjectPvs pvs;
|
---|
5162 |
|
---|
5163 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
5164 | mViewCellsTree->ExportStats(mstats);
|
---|
5165 | }
|
---|
5166 |
|
---|
5167 | cout << "merged view cells in "
|
---|
5168 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
5169 |
|
---|
5170 | Debug << "Postprocessing: Merged view cells in "
|
---|
5171 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
5172 |
|
---|
5173 |
|
---|
5174 | //////////////////
|
---|
5175 | //-- stats and visualizations
|
---|
5176 |
|
---|
5177 | int savedColorCode = mColorCode;
|
---|
5178 |
|
---|
5179 | // get currently active view cell set
|
---|
5180 | ResetViewCells();
|
---|
5181 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
5182 |
|
---|
5183 | if (mShowVisualization) // export merged view cells
|
---|
5184 | {
|
---|
5185 | mColorCode = 0;
|
---|
5186 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
5187 |
|
---|
5188 | cout << "exporting view cells after merge ... ";
|
---|
5189 |
|
---|
5190 | if (exporter)
|
---|
5191 | {
|
---|
5192 | if (0)
|
---|
5193 | exporter->SetWireframe();
|
---|
5194 | else
|
---|
5195 | exporter->SetFilled();
|
---|
5196 |
|
---|
5197 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
5198 |
|
---|
5199 | if (mExportGeometry)
|
---|
5200 | {
|
---|
5201 | Material m;
|
---|
5202 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
5203 | exporter->SetForcedMaterial(m);
|
---|
5204 | exporter->SetFilled();
|
---|
5205 |
|
---|
5206 | exporter->ExportGeometry(objects);
|
---|
5207 | }
|
---|
5208 |
|
---|
5209 | delete exporter;
|
---|
5210 | }
|
---|
5211 | cout << "finished" << endl;
|
---|
5212 | }
|
---|
5213 |
|
---|
5214 | mColorCode = savedColorCode;
|
---|
5215 | }
|
---|
5216 |
|
---|
5217 |
|
---|
5218 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
5219 | const ObjectContainer &objects)
|
---|
5220 | {
|
---|
5221 | mRenderer->RenderScene();
|
---|
5222 |
|
---|
5223 | SimulationStatistics ss;
|
---|
5224 | static_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
5225 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
5226 |
|
---|
5227 | const long startTime = GetTime();
|
---|
5228 | cout << "Refining the merged view cells ... ";
|
---|
5229 |
|
---|
5230 | // refining the merged view cells
|
---|
5231 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
5232 |
|
---|
5233 | //-- stats and visualizations
|
---|
5234 | cout << "finished" << endl;
|
---|
5235 | cout << "refined " << refined << " view cells in "
|
---|
5236 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
5237 |
|
---|
5238 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
5239 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
5240 | }
|
---|
5241 |
|
---|
5242 |
|
---|
5243 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
5244 | const VssRayContainer &rays)
|
---|
5245 | {
|
---|
5246 | if (!ViewCellsConstructed())
|
---|
5247 | {
|
---|
5248 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
5249 | return 0;
|
---|
5250 | }
|
---|
5251 |
|
---|
5252 | // view cells already finished before post processing step
|
---|
5253 | // (i.e. because they were loaded)
|
---|
5254 | if (mViewCellsFinished)
|
---|
5255 | {
|
---|
5256 | FinalizeViewCells(true);
|
---|
5257 | EvaluateViewCellsStats();
|
---|
5258 |
|
---|
5259 | return 0;
|
---|
5260 | }
|
---|
5261 |
|
---|
5262 | // check if new view cells turned invalid
|
---|
5263 | int minPvs, maxPvs;
|
---|
5264 |
|
---|
5265 | if (0)
|
---|
5266 | {
|
---|
5267 | minPvs = mMinPvsSize;
|
---|
5268 | maxPvs = mMaxPvsSize;
|
---|
5269 | }
|
---|
5270 | else
|
---|
5271 | {
|
---|
5272 | // problem matt: why did I start here from zero?
|
---|
5273 | minPvs = 0;
|
---|
5274 | maxPvs = mMaxPvsSize;
|
---|
5275 | }
|
---|
5276 |
|
---|
5277 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
5278 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
5279 |
|
---|
5280 | SetValidity(minPvs, maxPvs);
|
---|
5281 |
|
---|
5282 | // update valid view space according to valid view cells
|
---|
5283 | if (0) mVspBspTree->ValidateTree();
|
---|
5284 |
|
---|
5285 | // area has to be recomputed
|
---|
5286 | mTotalAreaValid = false;
|
---|
5287 | VssRayContainer postProcessRays;
|
---|
5288 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
5289 |
|
---|
5290 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
5291 |
|
---|
5292 | //////////
|
---|
5293 | //-- merge neighbouring view cells
|
---|
5294 | MergeViewCells(postProcessRays, objects);
|
---|
5295 |
|
---|
5296 | // refines the merged view cells
|
---|
5297 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
5298 |
|
---|
5299 |
|
---|
5300 | ///////////
|
---|
5301 | //-- render simulation after merge + refine
|
---|
5302 |
|
---|
5303 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
5304 | static_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
5305 | SimulationStatistics ss;
|
---|
5306 | static_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
5307 | cout << ss << endl;
|
---|
5308 |
|
---|
5309 | if (0) CompressViewCells();
|
---|
5310 |
|
---|
5311 | // collapse sibling leaves that share the same view cell
|
---|
5312 | if (0) mVspBspTree->CollapseTree();
|
---|
5313 |
|
---|
5314 | // recompute view cell list and statistics
|
---|
5315 | ResetViewCells();
|
---|
5316 |
|
---|
5317 | // compute final meshes and volume / area
|
---|
5318 | if (1) FinalizeViewCells(true);
|
---|
5319 |
|
---|
5320 | return 0;
|
---|
5321 | }
|
---|
5322 |
|
---|
5323 |
|
---|
5324 | int VspBspViewCellsManager::GetType() const
|
---|
5325 | {
|
---|
5326 | return VSP_BSP;
|
---|
5327 | }
|
---|
5328 |
|
---|
5329 |
|
---|
5330 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
5331 | {
|
---|
5332 | // terminate recursion
|
---|
5333 | if (root->IsLeaf())
|
---|
5334 | {
|
---|
5335 | BspLeaf *leaf = static_cast<BspLeaf *>(root);
|
---|
5336 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
5337 | return leaf->GetViewCell();
|
---|
5338 | }
|
---|
5339 |
|
---|
5340 |
|
---|
5341 | BspInterior *interior = static_cast<BspInterior *>(root);
|
---|
5342 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
5343 |
|
---|
5344 | // evaluate merge cost for priority traversal
|
---|
5345 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
5346 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
5347 |
|
---|
5348 | float volume = 0;
|
---|
5349 |
|
---|
5350 | BspNode *front = interior->GetFront();
|
---|
5351 | BspNode *back = interior->GetBack();
|
---|
5352 |
|
---|
5353 |
|
---|
5354 | ObjectPvs frontPvs, backPvs;
|
---|
5355 |
|
---|
5356 | //-- recursivly compute child hierarchies
|
---|
5357 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
5358 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
5359 |
|
---|
5360 |
|
---|
5361 | viewCellInterior->SetupChildLink(backVc);
|
---|
5362 | viewCellInterior->SetupChildLink(frontVc);
|
---|
5363 |
|
---|
5364 | volume += backVc->GetVolume();
|
---|
5365 | volume += frontVc->GetVolume();
|
---|
5366 |
|
---|
5367 | viewCellInterior->SetVolume(volume);
|
---|
5368 |
|
---|
5369 | return viewCellInterior;
|
---|
5370 | }
|
---|
5371 |
|
---|
5372 |
|
---|
5373 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
5374 | {
|
---|
5375 | if (!ViewCellsConstructed())
|
---|
5376 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
5377 |
|
---|
5378 | // TODO: set reasonable limit
|
---|
5379 | const int limit = 20;
|
---|
5380 |
|
---|
5381 | for (int i = 0; i < limit; ++ i)
|
---|
5382 | {
|
---|
5383 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
5384 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
5385 | {
|
---|
5386 | return true;
|
---|
5387 | }
|
---|
5388 | }
|
---|
5389 |
|
---|
5390 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
5391 | return false;
|
---|
5392 | }
|
---|
5393 |
|
---|
5394 |
|
---|
5395 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
5396 | {
|
---|
5397 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
5398 | // validy update in preprocessor for all managers)
|
---|
5399 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
5400 |
|
---|
5401 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
5402 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
5403 | }
|
---|
5404 |
|
---|
5405 |
|
---|
5406 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
5407 | const VssRayContainer &sampleRays)
|
---|
5408 | {
|
---|
5409 | if (!ViewCellsConstructed())
|
---|
5410 | return;
|
---|
5411 |
|
---|
5412 | VssRayContainer visRays;
|
---|
5413 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
5414 |
|
---|
5415 | if (1)
|
---|
5416 | {
|
---|
5417 | //////////////////
|
---|
5418 | //-- export final view cell partition
|
---|
5419 |
|
---|
5420 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
5421 |
|
---|
5422 | if (exporter)
|
---|
5423 | {
|
---|
5424 | cout << "exporting view cells after post process ... ";
|
---|
5425 |
|
---|
5426 | if (0)
|
---|
5427 | { // export view space box
|
---|
5428 | exporter->SetWireframe();
|
---|
5429 | exporter->ExportBox(mViewSpaceBox);
|
---|
5430 | exporter->SetFilled();
|
---|
5431 | }
|
---|
5432 |
|
---|
5433 | Material m;
|
---|
5434 | m.mDiffuseColor.r = 0.0f;
|
---|
5435 | m.mDiffuseColor.g = 0.5f;
|
---|
5436 | m.mDiffuseColor.b = 0.5f;
|
---|
5437 |
|
---|
5438 | exporter->SetForcedMaterial(m);
|
---|
5439 |
|
---|
5440 | if (1 && mExportGeometry)
|
---|
5441 | {
|
---|
5442 | exporter->ExportGeometry(objects);
|
---|
5443 | }
|
---|
5444 |
|
---|
5445 | if (0 && mExportRays)
|
---|
5446 | {
|
---|
5447 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
5448 | }
|
---|
5449 | ExportViewCellsForViz(exporter, NULL, mColorCode, GetClipPlane());
|
---|
5450 |
|
---|
5451 | delete exporter;
|
---|
5452 | cout << "finished" << endl;
|
---|
5453 | }
|
---|
5454 | }
|
---|
5455 |
|
---|
5456 | ////////////////
|
---|
5457 | //-- visualization of the BSP splits
|
---|
5458 |
|
---|
5459 | bool exportSplits = false;
|
---|
5460 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
5461 |
|
---|
5462 | if (exportSplits)
|
---|
5463 | {
|
---|
5464 | cout << "exporting splits ... ";
|
---|
5465 | ExportSplits(objects, visRays);
|
---|
5466 | cout << "finished" << endl;
|
---|
5467 | }
|
---|
5468 |
|
---|
5469 | ////////
|
---|
5470 | //-- export single view cells
|
---|
5471 |
|
---|
5472 | int leafOut;
|
---|
5473 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
5474 | const int raysOut = 100;
|
---|
5475 |
|
---|
5476 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
5477 | }
|
---|
5478 |
|
---|
5479 |
|
---|
5480 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
5481 | const VssRayContainer &rays)
|
---|
5482 | {
|
---|
5483 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
5484 |
|
---|
5485 | if (exporter)
|
---|
5486 | {
|
---|
5487 | Material m;
|
---|
5488 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
5489 | exporter->SetForcedMaterial(m);
|
---|
5490 | exporter->SetWireframe();
|
---|
5491 |
|
---|
5492 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
5493 |
|
---|
5494 | // take forced material, else big scenes cannot be viewed
|
---|
5495 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
5496 | exporter->SetForcedMaterial(m);
|
---|
5497 | exporter->SetFilled();
|
---|
5498 |
|
---|
5499 | exporter->ResetForcedMaterial();
|
---|
5500 |
|
---|
5501 | // export rays
|
---|
5502 | if (mExportRays)
|
---|
5503 | {
|
---|
5504 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
5505 | }
|
---|
5506 |
|
---|
5507 | if (mExportGeometry)
|
---|
5508 | {
|
---|
5509 | exporter->ExportGeometry(objects);
|
---|
5510 | }
|
---|
5511 | delete exporter;
|
---|
5512 | }
|
---|
5513 | }
|
---|
5514 |
|
---|
5515 |
|
---|
5516 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
5517 | const int maxViewCells,
|
---|
5518 | const bool sortViewCells,
|
---|
5519 | const bool exportPvs,
|
---|
5520 | const bool exportRays,
|
---|
5521 | const int maxRays,
|
---|
5522 | const string &prefix,
|
---|
5523 | VssRayContainer *visRays)
|
---|
5524 | {
|
---|
5525 | if (sortViewCells)
|
---|
5526 | {
|
---|
5527 | // sort view cells to visualize the largest view cells
|
---|
5528 | sort(mViewCells.begin(), mViewCells.end(), LargerRenderCost);
|
---|
5529 | }
|
---|
5530 |
|
---|
5531 | //////////
|
---|
5532 | //-- export some view cells for visualization
|
---|
5533 |
|
---|
5534 | ViewCell::NewMail();
|
---|
5535 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
5536 |
|
---|
5537 | for (int i = 0; i < limit; ++ i)
|
---|
5538 | {
|
---|
5539 | cout << "creating output for view cell " << i << " ... ";
|
---|
5540 |
|
---|
5541 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
5542 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
5543 |
|
---|
5544 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
5545 | continue;
|
---|
5546 |
|
---|
5547 | vc->Mail();
|
---|
5548 |
|
---|
5549 | ObjectPvs pvs;
|
---|
5550 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
5551 |
|
---|
5552 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
5553 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
5554 |
|
---|
5555 | const float pvsCost = mViewCellsTree->GetTrianglesInPvs(vc);
|
---|
5556 | cout << "view cell " << vc->GetId() << ": pvs cost=" << pvsCost << endl;
|
---|
5557 |
|
---|
5558 | if (exportRays)
|
---|
5559 | {
|
---|
5560 | ////////////
|
---|
5561 | //-- export rays piercing this view cell
|
---|
5562 |
|
---|
5563 | // take rays stored with the view cells during subdivision
|
---|
5564 | VssRayContainer vcRays;
|
---|
5565 | VssRayContainer collectRays;
|
---|
5566 |
|
---|
5567 | // collect initial view cells
|
---|
5568 | ViewCellContainer leaves;
|
---|
5569 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
5570 |
|
---|
5571 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
5572 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
5573 | {
|
---|
5574 | BspLeaf *vcLeaf = static_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
5575 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
5576 |
|
---|
5577 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
5578 | {
|
---|
5579 | collectRays.push_back(*rit);
|
---|
5580 | }
|
---|
5581 | }
|
---|
5582 |
|
---|
5583 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
5584 |
|
---|
5585 | // prepare some rays for visualization
|
---|
5586 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
5587 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
5588 | {
|
---|
5589 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
5590 |
|
---|
5591 | if (p < raysOut)
|
---|
5592 | {
|
---|
5593 | vcRays.push_back(*rit);
|
---|
5594 | }
|
---|
5595 | }
|
---|
5596 |
|
---|
5597 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
5598 | }
|
---|
5599 |
|
---|
5600 | ////////////////
|
---|
5601 | //-- export view cell geometry
|
---|
5602 |
|
---|
5603 | exporter->SetWireframe();
|
---|
5604 |
|
---|
5605 | Material m;//= RandomMaterial();
|
---|
5606 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
5607 | exporter->SetForcedMaterial(m);
|
---|
5608 |
|
---|
5609 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
5610 | exporter->SetFilled();
|
---|
5611 |
|
---|
5612 | if (exportPvs)
|
---|
5613 | {
|
---|
5614 | Intersectable::NewMail();
|
---|
5615 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
5616 |
|
---|
5617 | cout << endl;
|
---|
5618 |
|
---|
5619 | // output PVS of view cell
|
---|
5620 | while (pit.HasMoreEntries())
|
---|
5621 | {
|
---|
5622 | Intersectable *intersect = pit.Next();
|
---|
5623 |
|
---|
5624 | if (!intersect->Mailed())
|
---|
5625 | {
|
---|
5626 | intersect->Mail();
|
---|
5627 |
|
---|
5628 | m = RandomMaterial();
|
---|
5629 | exporter->SetForcedMaterial(m);
|
---|
5630 | exporter->ExportIntersectable(intersect);
|
---|
5631 | }
|
---|
5632 | }
|
---|
5633 | cout << endl;
|
---|
5634 | }
|
---|
5635 |
|
---|
5636 | DEL_PTR(exporter);
|
---|
5637 | cout << "finished" << endl;
|
---|
5638 | }
|
---|
5639 | }
|
---|
5640 |
|
---|
5641 |
|
---|
5642 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
5643 | {
|
---|
5644 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
5645 |
|
---|
5646 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
5647 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
5648 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
5649 | const Vector3 width = Vector3(w);
|
---|
5650 |
|
---|
5651 | PrVs testPrVs;
|
---|
5652 |
|
---|
5653 | if (exporter)
|
---|
5654 | {
|
---|
5655 | ViewCellContainer viewCells;
|
---|
5656 |
|
---|
5657 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
5658 |
|
---|
5659 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
5660 |
|
---|
5661 | exporter->SetWireframe();
|
---|
5662 |
|
---|
5663 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
5664 | exporter->ExportBox(tbox);
|
---|
5665 |
|
---|
5666 | exporter->SetFilled();
|
---|
5667 |
|
---|
5668 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
5669 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
5670 |
|
---|
5671 | //exporter->ResetForcedMaterial();
|
---|
5672 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
5673 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
5674 |
|
---|
5675 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
5676 | exporter->ExportGeometry(objects);
|
---|
5677 |
|
---|
5678 | delete exporter;
|
---|
5679 | }
|
---|
5680 | }
|
---|
5681 |
|
---|
5682 |
|
---|
5683 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
5684 | ViewCellContainer &viewCells) const
|
---|
5685 | {
|
---|
5686 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
5687 | }
|
---|
5688 |
|
---|
5689 |
|
---|
5690 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
5691 | const Vector3 &termination,
|
---|
5692 | ViewCellContainer &viewcells)
|
---|
5693 | {
|
---|
5694 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
5695 | }
|
---|
5696 |
|
---|
5697 |
|
---|
5698 | bool VspBspViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
5699 | const Vector3 &termination,
|
---|
5700 | ViewCell *viewCell)
|
---|
5701 | {
|
---|
5702 | return false;
|
---|
5703 | }
|
---|
5704 |
|
---|
5705 |
|
---|
5706 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
5707 | {
|
---|
5708 | int numSamples;
|
---|
5709 |
|
---|
5710 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
5711 | cout << "samples" << numSamples << endl;
|
---|
5712 |
|
---|
5713 | vector<RenderCostSample> samples;
|
---|
5714 |
|
---|
5715 | if (!mPreprocessor->GetRenderer())
|
---|
5716 | return;
|
---|
5717 |
|
---|
5718 | //start the view point queries
|
---|
5719 | long startTime = GetTime();
|
---|
5720 | cout << "starting sampling of render cost ... ";
|
---|
5721 |
|
---|
5722 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
5723 |
|
---|
5724 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
5725 |
|
---|
5726 |
|
---|
5727 | // for each sample:
|
---|
5728 | // find view cells associated with the samples
|
---|
5729 | // store the sample pvs with the pvs associated with the view cell
|
---|
5730 | //
|
---|
5731 | // for each view cell:
|
---|
5732 | // compute difference point sampled pvs - view cell pvs
|
---|
5733 | // export geometry with color coded pvs difference
|
---|
5734 |
|
---|
5735 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
5736 |
|
---|
5737 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
5738 |
|
---|
5739 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
5740 | {
|
---|
5741 | RenderCostSample sample = *rit;
|
---|
5742 |
|
---|
5743 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
5744 |
|
---|
5745 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
5746 |
|
---|
5747 | if (it == sampleMap.end())
|
---|
5748 | {
|
---|
5749 | sampleMap[vc] = sample.mPvs;
|
---|
5750 | }
|
---|
5751 | else
|
---|
5752 | {
|
---|
5753 | (*it).second.MergeInPlace(sample.mPvs);
|
---|
5754 | }
|
---|
5755 | }
|
---|
5756 |
|
---|
5757 | // visualize the view cells
|
---|
5758 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
5759 |
|
---|
5760 | Material m;//= RandomMaterial();
|
---|
5761 |
|
---|
5762 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
5763 | {
|
---|
5764 | ViewCell *vc = (*vit).first;
|
---|
5765 |
|
---|
5766 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
5767 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
5768 |
|
---|
5769 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
5770 | m.mDiffuseColor.b = 1.0f;
|
---|
5771 | //exporter->SetForcedMaterial(m);
|
---|
5772 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
5773 |
|
---|
5774 | /* // counting the pvss
|
---|
5775 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
5776 | {
|
---|
5777 | RenderCostSample sample = *rit;
|
---|
5778 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
5779 |
|
---|
5780 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
5781 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
5782 |
|
---|
5783 | DEL_PTR(hMesh);
|
---|
5784 | }
|
---|
5785 | */
|
---|
5786 | }
|
---|
5787 | }
|
---|
5788 |
|
---|
5789 |
|
---|
5790 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
5791 | ViewCell *vc,
|
---|
5792 | const AxisAlignedBox3 *sceneBox,
|
---|
5793 | const AxisAlignedPlane *clipPlane
|
---|
5794 | ) const
|
---|
5795 | {
|
---|
5796 | if (clipPlane)
|
---|
5797 | {
|
---|
5798 | const Plane3 plane = clipPlane->GetPlane();
|
---|
5799 |
|
---|
5800 | ViewCellContainer leaves;
|
---|
5801 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
5802 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
5803 |
|
---|
5804 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
5805 | {
|
---|
5806 | BspNodeGeometry geom;
|
---|
5807 | BspNodeGeometry front;
|
---|
5808 | BspNodeGeometry back;
|
---|
5809 |
|
---|
5810 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
5811 |
|
---|
5812 | const float eps = 0.0001f;
|
---|
5813 | const int cf = geom.Side(plane, eps);
|
---|
5814 |
|
---|
5815 | if (cf == -1)
|
---|
5816 | {
|
---|
5817 | exporter->ExportPolygons(geom.GetPolys());
|
---|
5818 | }
|
---|
5819 | else if (cf == 0)
|
---|
5820 | {
|
---|
5821 | geom.SplitGeometry(front,
|
---|
5822 | back,
|
---|
5823 | plane,
|
---|
5824 | mViewSpaceBox,
|
---|
5825 | eps);
|
---|
5826 |
|
---|
5827 | if (back.Valid())
|
---|
5828 | {
|
---|
5829 | exporter->ExportPolygons(back.GetPolys());
|
---|
5830 | }
|
---|
5831 | }
|
---|
5832 | }
|
---|
5833 | }
|
---|
5834 | else
|
---|
5835 | {
|
---|
5836 | // export mesh if available
|
---|
5837 | // TODO: some bug here?
|
---|
5838 | if (1 && vc->GetMesh())
|
---|
5839 | {
|
---|
5840 | exporter->ExportMesh(vc->GetMesh());
|
---|
5841 | }
|
---|
5842 | else
|
---|
5843 | {
|
---|
5844 | BspNodeGeometry geom;
|
---|
5845 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
5846 | exporter->ExportPolygons(geom.GetPolys());
|
---|
5847 | }
|
---|
5848 | }
|
---|
5849 | }
|
---|
5850 |
|
---|
5851 |
|
---|
5852 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
5853 | {
|
---|
5854 | ViewCellContainer leaves;
|
---|
5855 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
5856 |
|
---|
5857 | int maxDist = 0;
|
---|
5858 |
|
---|
5859 | // compute max height difference
|
---|
5860 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
5861 | {
|
---|
5862 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
5863 | {
|
---|
5864 | BspLeaf *leaf = static_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
5865 |
|
---|
5866 | if (i != j)
|
---|
5867 | {
|
---|
5868 | BspLeaf *leaf2 =static_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
5869 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
5870 |
|
---|
5871 | if (dist > maxDist)
|
---|
5872 | maxDist = dist;
|
---|
5873 | }
|
---|
5874 | }
|
---|
5875 | }
|
---|
5876 |
|
---|
5877 | return maxDist;
|
---|
5878 | }
|
---|
5879 |
|
---|
5880 |
|
---|
5881 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
5882 | {
|
---|
5883 | if (!ViewCellsConstructed())
|
---|
5884 | return NULL;
|
---|
5885 |
|
---|
5886 | if (!mViewSpaceBox.IsInside(point))
|
---|
5887 | return NULL;
|
---|
5888 |
|
---|
5889 | return mVspBspTree->GetViewCell(point, active);
|
---|
5890 | }
|
---|
5891 |
|
---|
5892 |
|
---|
5893 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
5894 | {
|
---|
5895 | BspNodeGeometry geom;
|
---|
5896 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
5897 |
|
---|
5898 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
5899 |
|
---|
5900 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
5901 | mesh->ComputeBoundingBox();
|
---|
5902 |
|
---|
5903 | vc->SetMesh(mesh);
|
---|
5904 | }
|
---|
5905 |
|
---|
5906 |
|
---|
5907 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
5908 | {
|
---|
5909 | return mVspBspTree->CastBeam(beam);
|
---|
5910 | }
|
---|
5911 |
|
---|
5912 |
|
---|
5913 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
5914 | const bool createMesh)
|
---|
5915 | {
|
---|
5916 | float area = 0;
|
---|
5917 | float volume = 0;
|
---|
5918 |
|
---|
5919 | ViewCellContainer leaves;
|
---|
5920 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
5921 |
|
---|
5922 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
5923 |
|
---|
5924 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
5925 | {
|
---|
5926 | BspNodeGeometry geom;
|
---|
5927 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
5928 |
|
---|
5929 | const float lVol = geom.GetVolume();
|
---|
5930 | const float lArea = geom.GetArea();
|
---|
5931 |
|
---|
5932 | area += lArea;
|
---|
5933 | volume += lVol;
|
---|
5934 |
|
---|
5935 | if (createMesh)
|
---|
5936 | CreateMesh(*it);
|
---|
5937 | }
|
---|
5938 |
|
---|
5939 | viewCell->SetVolume(volume);
|
---|
5940 | viewCell->SetArea(area);
|
---|
5941 | }
|
---|
5942 |
|
---|
5943 |
|
---|
5944 | void VspBspViewCellsManager::TestSubdivision()
|
---|
5945 | {
|
---|
5946 | ViewCellContainer leaves;
|
---|
5947 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
5948 |
|
---|
5949 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
5950 |
|
---|
5951 | const float vol = mViewSpaceBox.GetVolume();
|
---|
5952 | float subdivVol = 0;
|
---|
5953 | float newVol = 0;
|
---|
5954 |
|
---|
5955 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
5956 | {
|
---|
5957 | BspNodeGeometry geom;
|
---|
5958 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
5959 |
|
---|
5960 | const float lVol = geom.GetVolume();
|
---|
5961 |
|
---|
5962 | newVol += lVol;
|
---|
5963 | subdivVol += (*it)->GetVolume();
|
---|
5964 |
|
---|
5965 | float thres = 0.9f;
|
---|
5966 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
5967 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
5968 | }
|
---|
5969 |
|
---|
5970 | Debug << "exact volume: " << vol << endl;
|
---|
5971 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
5972 | Debug << "new volume: " << newVol << endl;
|
---|
5973 | }
|
---|
5974 |
|
---|
5975 |
|
---|
5976 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
5977 | {
|
---|
5978 | // TODO: do I still need this here?
|
---|
5979 | if (0) mVspBspTree->RepairViewCellsLeafLists();
|
---|
5980 | }
|
---|
5981 |
|
---|
5982 |
|
---|
5983 |
|
---|
5984 | /************************************************************************/
|
---|
5985 | /* VspOspViewCellsManager implementation */
|
---|
5986 | /************************************************************************/
|
---|
5987 |
|
---|
5988 |
|
---|
5989 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
5990 | const string &hierarchyType)
|
---|
5991 | : ViewCellsManager(vcTree)
|
---|
5992 | {
|
---|
5993 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
5994 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
5995 |
|
---|
5996 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
5997 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
5998 |
|
---|
5999 | mHierarchyManager = CreateHierarchyManager(hierarchyType);
|
---|
6000 |
|
---|
6001 | mHierarchyManager->SetViewCellsManager(this);
|
---|
6002 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
6003 | }
|
---|
6004 |
|
---|
6005 |
|
---|
6006 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
6007 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
6008 | {
|
---|
6009 | Environment::GetSingleton()->GetIntValue("Hierarchy.Construction.samples", mInitialSamples);
|
---|
6010 | Environment::GetSingleton()->GetBoolValue("ViewCells.compressObjects", mCompressObjects);
|
---|
6011 |
|
---|
6012 | Debug << "compressing objects: " << mCompressObjects << endl;
|
---|
6013 | cout << "compressing objects: " << mCompressObjects << endl;
|
---|
6014 |
|
---|
6015 | mHierarchyManager->SetViewCellsManager(this);
|
---|
6016 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
6017 | }
|
---|
6018 |
|
---|
6019 |
|
---|
6020 | Intersectable *VspOspViewCellsManager::GetIntersectable(const VssRay &ray,
|
---|
6021 | const bool isTermination) const
|
---|
6022 | {
|
---|
6023 | if (mUseKdPvs)
|
---|
6024 | return ViewCellsManager::GetIntersectable(ray, isTermination);
|
---|
6025 | else
|
---|
6026 | return mHierarchyManager->GetIntersectable(ray, isTermination);
|
---|
6027 | }
|
---|
6028 |
|
---|
6029 |
|
---|
6030 | HierarchyManager *VspOspViewCellsManager::CreateHierarchyManager(const string &hierarchyType)
|
---|
6031 | {
|
---|
6032 | HierarchyManager *hierarchyManager;
|
---|
6033 |
|
---|
6034 | if (strcmp(hierarchyType.c_str(), "osp") == 0)
|
---|
6035 | {
|
---|
6036 | Debug << "hierarchy manager: osp" << endl;
|
---|
6037 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
6038 | }
|
---|
6039 | else if (strcmp(hierarchyType.c_str(), "bvh") == 0)
|
---|
6040 | {
|
---|
6041 | Debug << "hierarchy manager: bvh" << endl;
|
---|
6042 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
6043 | }
|
---|
6044 | else // only view space partition
|
---|
6045 | {
|
---|
6046 | Debug << "hierarchy manager: obj" << endl;
|
---|
6047 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
6048 | }
|
---|
6049 |
|
---|
6050 | return hierarchyManager;
|
---|
6051 | }
|
---|
6052 |
|
---|
6053 |
|
---|
6054 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
6055 | {
|
---|
6056 | DEL_PTR(mHierarchyManager);
|
---|
6057 | }
|
---|
6058 |
|
---|
6059 |
|
---|
6060 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
6061 | {
|
---|
6062 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
6063 | }
|
---|
6064 |
|
---|
6065 |
|
---|
6066 | void VspOspViewCellsManager::CollectViewCells()
|
---|
6067 | {
|
---|
6068 | // view cells tree constructed
|
---|
6069 | if (!ViewCellsTreeConstructed())
|
---|
6070 | {
|
---|
6071 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
6072 | }
|
---|
6073 | else
|
---|
6074 | { // we can use the view cells tree hierarchy to get the right set
|
---|
6075 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
6076 | }
|
---|
6077 | }
|
---|
6078 |
|
---|
6079 |
|
---|
6080 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
6081 | {
|
---|
6082 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
6083 | }
|
---|
6084 |
|
---|
6085 |
|
---|
6086 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
6087 | {
|
---|
6088 | return new VspViewCell(mesh);
|
---|
6089 | }
|
---|
6090 |
|
---|
6091 |
|
---|
6092 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
6093 | const VssRayContainer &rays)
|
---|
6094 | {
|
---|
6095 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
6096 |
|
---|
6097 | // skip rest if view cells were already constructed
|
---|
6098 | if (ViewCellsConstructed())
|
---|
6099 | return 0;
|
---|
6100 |
|
---|
6101 | int sampleContributions = 0;
|
---|
6102 | VssRayContainer sampleRays;
|
---|
6103 |
|
---|
6104 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
6105 |
|
---|
6106 | VssRayContainer constructionRays;
|
---|
6107 | VssRayContainer savedRays;
|
---|
6108 |
|
---|
6109 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
6110 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
6111 |
|
---|
6112 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
6113 |
|
---|
6114 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
6115 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
6116 |
|
---|
6117 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
6118 |
|
---|
6119 | #if TEST_EVALUATION
|
---|
6120 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
6121 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
6122 | {
|
---|
6123 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
6124 | }
|
---|
6125 | #endif
|
---|
6126 |
|
---|
6127 | /////////////////////////
|
---|
6128 | //-- print satistics for subdivision and view cells
|
---|
6129 |
|
---|
6130 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
6131 |
|
---|
6132 | ResetViewCells();
|
---|
6133 | //Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
6134 |
|
---|
6135 | //////////////
|
---|
6136 | //-- recast rest of rays
|
---|
6137 |
|
---|
6138 | const long startTime = GetTime();
|
---|
6139 | cout << "Computing remaining ray contributions ... ";
|
---|
6140 |
|
---|
6141 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
6142 | ComputeSampleContributions(savedRays, true, false);
|
---|
6143 |
|
---|
6144 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
6145 | << " secs" << endl;
|
---|
6146 |
|
---|
6147 | if (0)
|
---|
6148 | {
|
---|
6149 | // real meshes are constructed at this stage
|
---|
6150 | cout << "finalizing view cells ... ";
|
---|
6151 | FinalizeViewCells(true);
|
---|
6152 | cout << "finished" << endl;
|
---|
6153 | }
|
---|
6154 |
|
---|
6155 | return sampleContributions;
|
---|
6156 | }
|
---|
6157 |
|
---|
6158 |
|
---|
6159 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
6160 | const VssRayContainer &rays)
|
---|
6161 | {
|
---|
6162 | if (!ViewCellsConstructed())
|
---|
6163 | {
|
---|
6164 | Debug << "post process error: no view cells constructed" << endl;
|
---|
6165 | return 0;
|
---|
6166 | }
|
---|
6167 |
|
---|
6168 | // if view cells were already constructed before post processing step
|
---|
6169 | // (e.g., because they were loaded), we are finished
|
---|
6170 | if (mViewCellsFinished)
|
---|
6171 | {
|
---|
6172 | FinalizeViewCells(true);
|
---|
6173 | EvaluateViewCellsStats();
|
---|
6174 |
|
---|
6175 | return 0;
|
---|
6176 | }
|
---|
6177 |
|
---|
6178 | // check if new view cells turned invalid
|
---|
6179 | int minPvs, maxPvs;
|
---|
6180 |
|
---|
6181 | if (0)
|
---|
6182 | {
|
---|
6183 | minPvs = mMinPvsSize;
|
---|
6184 | maxPvs = mMaxPvsSize;
|
---|
6185 | }
|
---|
6186 | else
|
---|
6187 | {
|
---|
6188 | // problem matt: why did I start here from zero?
|
---|
6189 | minPvs = 0;
|
---|
6190 | maxPvs = mMaxPvsSize;
|
---|
6191 | }
|
---|
6192 |
|
---|
6193 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
6194 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
6195 |
|
---|
6196 | SetValidity(minPvs, maxPvs);
|
---|
6197 |
|
---|
6198 |
|
---|
6199 | // area is not up to date, has to be recomputed
|
---|
6200 | mTotalAreaValid = false;
|
---|
6201 | VssRayContainer postProcessRays;
|
---|
6202 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
6203 |
|
---|
6204 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
6205 |
|
---|
6206 |
|
---|
6207 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
6208 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
6209 | mViewCellsTree->SetRoot(root);
|
---|
6210 |
|
---|
6211 | //////////////////////////
|
---|
6212 | //-- update pvs up to the root of the hierarchy
|
---|
6213 |
|
---|
6214 | ObjectPvs pvs;
|
---|
6215 | UpdatePvsForEvaluation(root, pvs);
|
---|
6216 |
|
---|
6217 |
|
---|
6218 | //////////////////////
|
---|
6219 | //-- render simulation after merge + refine
|
---|
6220 |
|
---|
6221 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
6222 | static_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
6223 | SimulationStatistics ss;
|
---|
6224 | static_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
6225 | cout << ss << endl;
|
---|
6226 |
|
---|
6227 |
|
---|
6228 | mHierarchyManager->CreateUniqueObjectIds();
|
---|
6229 |
|
---|
6230 | ///////////
|
---|
6231 | //-- compression
|
---|
6232 |
|
---|
6233 | if (0) CompressViewCells();
|
---|
6234 |
|
---|
6235 | /////////////
|
---|
6236 | //-- some tasks still to do on the view cells:
|
---|
6237 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
6238 |
|
---|
6239 | if (1) FinalizeViewCells(true);
|
---|
6240 |
|
---|
6241 | return 0;
|
---|
6242 | }
|
---|
6243 |
|
---|
6244 |
|
---|
6245 | int VspOspViewCellsManager::GetType() const
|
---|
6246 | {
|
---|
6247 | return VSP_OSP;
|
---|
6248 | }
|
---|
6249 |
|
---|
6250 |
|
---|
6251 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
6252 | {
|
---|
6253 | // terminate recursion
|
---|
6254 | if (root->IsLeaf())
|
---|
6255 | {
|
---|
6256 | VspLeaf *leaf = static_cast<VspLeaf *>(root);
|
---|
6257 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
6258 | return leaf->GetViewCell();
|
---|
6259 | }
|
---|
6260 |
|
---|
6261 | VspInterior *interior = static_cast<VspInterior *>(root);
|
---|
6262 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
6263 |
|
---|
6264 | // evaluate merge cost for priority traversal
|
---|
6265 | const float mergeCost = -(float)root->mTimeStamp;
|
---|
6266 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
6267 |
|
---|
6268 | float volume = 0;
|
---|
6269 |
|
---|
6270 | VspNode *front = interior->GetFront();
|
---|
6271 | VspNode *back = interior->GetBack();
|
---|
6272 |
|
---|
6273 | ObjectPvs frontPvs, backPvs;
|
---|
6274 |
|
---|
6275 | /////////
|
---|
6276 | //-- recursivly compute child hierarchies
|
---|
6277 |
|
---|
6278 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
6279 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
6280 |
|
---|
6281 | viewCellInterior->SetupChildLink(backVc);
|
---|
6282 | viewCellInterior->SetupChildLink(frontVc);
|
---|
6283 |
|
---|
6284 | volume += backVc->GetVolume();
|
---|
6285 | volume += frontVc->GetVolume();
|
---|
6286 |
|
---|
6287 | viewCellInterior->SetVolume(volume);
|
---|
6288 |
|
---|
6289 | return viewCellInterior;
|
---|
6290 | }
|
---|
6291 |
|
---|
6292 |
|
---|
6293 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
6294 | {
|
---|
6295 | if (!ViewCellsConstructed())
|
---|
6296 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
6297 |
|
---|
6298 | // TODO: set reasonable limit
|
---|
6299 | const int limit = 20;
|
---|
6300 |
|
---|
6301 | for (int i = 0; i < limit; ++ i)
|
---|
6302 | {
|
---|
6303 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
6304 |
|
---|
6305 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
6306 | {
|
---|
6307 | return true;
|
---|
6308 | }
|
---|
6309 | }
|
---|
6310 |
|
---|
6311 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
6312 | return false;
|
---|
6313 | }
|
---|
6314 |
|
---|
6315 |
|
---|
6316 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
6317 | ViewCell *vc,
|
---|
6318 | const AxisAlignedBox3 *sceneBox,
|
---|
6319 | const AxisAlignedPlane *clipPlane
|
---|
6320 | ) const
|
---|
6321 | {
|
---|
6322 | Plane3 plane;
|
---|
6323 | if (clipPlane)
|
---|
6324 | {
|
---|
6325 | // arbitrary plane definition
|
---|
6326 | plane = clipPlane->GetPlane();
|
---|
6327 | }
|
---|
6328 |
|
---|
6329 | ViewCellContainer leaves;
|
---|
6330 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
6331 |
|
---|
6332 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
6333 |
|
---|
6334 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
6335 | {
|
---|
6336 | VspViewCell *vspVc = static_cast<VspViewCell *>(*it);
|
---|
6337 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
6338 |
|
---|
6339 | const AxisAlignedBox3 box =
|
---|
6340 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
6341 |
|
---|
6342 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
6343 | continue;
|
---|
6344 |
|
---|
6345 | if (clipPlane)
|
---|
6346 | {
|
---|
6347 | if (box.Side(plane) == -1)
|
---|
6348 | {
|
---|
6349 | exporter->ExportBox(box);
|
---|
6350 | }
|
---|
6351 | else if (box.Side(plane) == 0)
|
---|
6352 | {
|
---|
6353 | // intersection
|
---|
6354 | AxisAlignedBox3 fbox, bbox;
|
---|
6355 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
6356 | exporter->ExportBox(bbox);
|
---|
6357 | }
|
---|
6358 | }
|
---|
6359 | else
|
---|
6360 | {
|
---|
6361 | exporter->ExportBox(box);
|
---|
6362 | }
|
---|
6363 | }
|
---|
6364 | }
|
---|
6365 |
|
---|
6366 |
|
---|
6367 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
6368 | {
|
---|
6369 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
6370 | // validy update in preprocessor for all managers)
|
---|
6371 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
6372 |
|
---|
6373 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
6374 | // mVspTree->ViewPointValid(viewPoint);
|
---|
6375 | }
|
---|
6376 |
|
---|
6377 |
|
---|
6378 | float VspOspViewCellsManager::UpdateObjectCosts()
|
---|
6379 | {
|
---|
6380 | float maxRenderCost = 0;
|
---|
6381 |
|
---|
6382 | cout << "updating object pvs cost ... ";
|
---|
6383 | const long startTime = GetTime();
|
---|
6384 |
|
---|
6385 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
6386 |
|
---|
6387 | Intersectable::NewMail();
|
---|
6388 |
|
---|
6389 | const float invViewSpaceVol = 1.0f / GetViewSpaceBox().GetVolume();
|
---|
6390 |
|
---|
6391 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
6392 | {
|
---|
6393 | ViewCell *vc = *vit;
|
---|
6394 |
|
---|
6395 | ObjectPvsIterator pit = vc->GetPvs().GetIterator();
|
---|
6396 |
|
---|
6397 | // output PVS of view cell
|
---|
6398 | while (pit.HasMoreEntries())
|
---|
6399 | {
|
---|
6400 | Intersectable *obj = pit.Next();
|
---|
6401 |
|
---|
6402 | BvhNode *node = static_cast<BvhNode *>(obj);
|
---|
6403 |
|
---|
6404 | // hack!!
|
---|
6405 | if (!node->IsLeaf())
|
---|
6406 | {
|
---|
6407 | cout << "error, can only process leaves" << endl;
|
---|
6408 | return 0;
|
---|
6409 | }
|
---|
6410 |
|
---|
6411 | if (!node->Mailed())
|
---|
6412 | {
|
---|
6413 | node->Mail();
|
---|
6414 | node->mRenderCost = 0;
|
---|
6415 | }
|
---|
6416 |
|
---|
6417 | const float rc = (float)((BvhLeaf *)node)->mObjects.size();
|
---|
6418 |
|
---|
6419 | node->mRenderCost += rc * vc->GetVolume() * invViewSpaceVol;
|
---|
6420 |
|
---|
6421 | if (node->mRenderCost > maxRenderCost)
|
---|
6422 | maxRenderCost = node->mRenderCost;
|
---|
6423 | }
|
---|
6424 | }
|
---|
6425 |
|
---|
6426 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
6427 |
|
---|
6428 | return maxRenderCost;
|
---|
6429 | }
|
---|
6430 |
|
---|
6431 |
|
---|
6432 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
6433 | const VssRayContainer &sampleRays)
|
---|
6434 | {
|
---|
6435 | if (!ViewCellsConstructed())
|
---|
6436 | return;
|
---|
6437 |
|
---|
6438 | VssRayContainer visRays;
|
---|
6439 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
6440 |
|
---|
6441 | ////////////
|
---|
6442 | //-- export final view cells
|
---|
6443 |
|
---|
6444 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
6445 |
|
---|
6446 | Vector3 scale(0.9f, 0.9f, 0.9f);
|
---|
6447 | //Vector3 scale(1.0f, 1.0f, 1.0f);
|
---|
6448 |
|
---|
6449 | if (exporter)
|
---|
6450 | {
|
---|
6451 | // clamp to a scene boudning box
|
---|
6452 | if (CLAMP_TO_BOX)
|
---|
6453 | exporter->mClampToBox = true;
|
---|
6454 |
|
---|
6455 | const long starttime = GetTime();
|
---|
6456 | cout << "exporting final view cells (after initial construction + post process) ... " << endl;
|
---|
6457 |
|
---|
6458 | // matt: hack for clamping scene
|
---|
6459 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
6460 | bbox.Scale(scale);
|
---|
6461 |
|
---|
6462 | if (1 && mExportRays)
|
---|
6463 | {
|
---|
6464 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
6465 | }
|
---|
6466 |
|
---|
6467 | // hack color code
|
---|
6468 | const int savedColorCode = mColorCode;
|
---|
6469 |
|
---|
6470 | EvaluateViewCellsStats();
|
---|
6471 | const int colorCode = 0;
|
---|
6472 |
|
---|
6473 | const float maxRenderCost = -1;//UpdateObjectCosts();
|
---|
6474 | const bool exportBounds = false;
|
---|
6475 |
|
---|
6476 | //cout << "maxRenderCost: " << maxRenderCost << endl;
|
---|
6477 | if (1)
|
---|
6478 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter,
|
---|
6479 | objects,
|
---|
6480 | CLAMP_TO_BOX ? &bbox : NULL,
|
---|
6481 | maxRenderCost,
|
---|
6482 | exportBounds);
|
---|
6483 |
|
---|
6484 | //ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, mColorCode, GetClipPlane());
|
---|
6485 | ExportViewCellsForViz(exporter, NULL, colorCode, GetClipPlane());
|
---|
6486 |
|
---|
6487 | delete exporter;
|
---|
6488 |
|
---|
6489 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
6490 | }
|
---|
6491 |
|
---|
6492 | if (1)
|
---|
6493 | {
|
---|
6494 | exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
6495 |
|
---|
6496 | if (exporter)
|
---|
6497 | {
|
---|
6498 | if (CLAMP_TO_BOX)
|
---|
6499 | {
|
---|
6500 | exporter->mClampToBox = true;
|
---|
6501 | }
|
---|
6502 |
|
---|
6503 | const long starttime = GetTime();
|
---|
6504 | cout << "exporting final objects (after initial construction + post process) ... ";
|
---|
6505 |
|
---|
6506 | // matt: hack for clamping scene
|
---|
6507 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
6508 | bbox.Scale(scale);
|
---|
6509 |
|
---|
6510 | // hack color code (show pvs size)
|
---|
6511 | const int savedColorCode = mColorCode;
|
---|
6512 |
|
---|
6513 | EvaluateViewCellsStats();
|
---|
6514 | mColorCode = 1; // 0 = random, 1 = export pvs
|
---|
6515 |
|
---|
6516 | // don't visualize render cost
|
---|
6517 | const float maxRenderCost = -1;
|
---|
6518 | //const bool exportBounds = true;
|
---|
6519 | const bool exportBounds = false;
|
---|
6520 |
|
---|
6521 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter,
|
---|
6522 | objects,
|
---|
6523 | CLAMP_TO_BOX ? &bbox : NULL,
|
---|
6524 | maxRenderCost,
|
---|
6525 | exportBounds);
|
---|
6526 |
|
---|
6527 |
|
---|
6528 | delete exporter;
|
---|
6529 |
|
---|
6530 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
6531 | mColorCode = savedColorCode;
|
---|
6532 | }
|
---|
6533 | }
|
---|
6534 |
|
---|
6535 | // export some view cells
|
---|
6536 | int leafOut;
|
---|
6537 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
6538 |
|
---|
6539 | const bool sortViewCells = false;
|
---|
6540 | const bool exportPvs = true;
|
---|
6541 | const bool exportRays = true;
|
---|
6542 | const int raysOut = 100;
|
---|
6543 |
|
---|
6544 | ExportSingleViewCells(objects,
|
---|
6545 | leafOut,
|
---|
6546 | sortViewCells,
|
---|
6547 | exportPvs,
|
---|
6548 | exportRays,
|
---|
6549 | raysOut,
|
---|
6550 | "");
|
---|
6551 | }
|
---|
6552 |
|
---|
6553 |
|
---|
6554 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
6555 | const int maxViewCells,
|
---|
6556 | const bool sortViewCells,
|
---|
6557 | const bool exportPvs,
|
---|
6558 | const bool exportRays,
|
---|
6559 | const int maxRays,
|
---|
6560 | const string &prefix,
|
---|
6561 | VssRayContainer *visRays)
|
---|
6562 | {
|
---|
6563 | if (sortViewCells)
|
---|
6564 | {
|
---|
6565 | // sort view cells to visualize the view cells with highest render cost
|
---|
6566 | sort(mViewCells.begin(), mViewCells.end(), LargerRenderCost);
|
---|
6567 | }
|
---|
6568 |
|
---|
6569 | ViewCell::NewMail();
|
---|
6570 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
6571 |
|
---|
6572 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
6573 |
|
---|
6574 | for (int i = 0; i < limit; ++ i)
|
---|
6575 | {
|
---|
6576 | cout << "creating output for view cell " << i << " ... ";
|
---|
6577 |
|
---|
6578 | // largest view cell pvs first of random view cell
|
---|
6579 | ViewCell *vc = sortViewCells ?
|
---|
6580 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
6581 |
|
---|
6582 | if (vc->Mailed()) // view cell already processed
|
---|
6583 | continue;
|
---|
6584 |
|
---|
6585 | vc->Mail();
|
---|
6586 |
|
---|
6587 | ObjectPvs pvs;
|
---|
6588 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
6589 |
|
---|
6590 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
6591 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
6592 |
|
---|
6593 | cout << "view cell " << vc->GetId() << ": pvs cost=" << mViewCellsTree->GetTrianglesInPvs(vc) << endl;
|
---|
6594 |
|
---|
6595 | if (exportPvs)
|
---|
6596 | {
|
---|
6597 | Material m;
|
---|
6598 | Intersectable::NewMail();
|
---|
6599 |
|
---|
6600 | ObjectPvsIterator pit = pvs.GetIterator();
|
---|
6601 |
|
---|
6602 | // output PVS of view cell
|
---|
6603 | while (pit.HasMoreEntries())
|
---|
6604 | {
|
---|
6605 | Intersectable *intersect = pit.Next();
|
---|
6606 |
|
---|
6607 | if (!intersect->Mailed())
|
---|
6608 | {
|
---|
6609 | m = RandomMaterial();
|
---|
6610 | exporter->SetForcedMaterial(m);
|
---|
6611 |
|
---|
6612 | exporter->ExportIntersectable(intersect);
|
---|
6613 | intersect->Mail();
|
---|
6614 | }
|
---|
6615 | }
|
---|
6616 | }
|
---|
6617 |
|
---|
6618 | if (exportRays)
|
---|
6619 | {
|
---|
6620 | ////////////
|
---|
6621 | //-- export the sample rays
|
---|
6622 |
|
---|
6623 | // output rays stored with the view cells during subdivision
|
---|
6624 | VssRayContainer vcRays;
|
---|
6625 | VssRayContainer collectRays;
|
---|
6626 |
|
---|
6627 | // collect intial view cells
|
---|
6628 | ViewCellContainer leaves;
|
---|
6629 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
6630 |
|
---|
6631 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
6632 |
|
---|
6633 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
6634 | {
|
---|
6635 | VspLeaf *vcLeaf = static_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
6636 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
6637 |
|
---|
6638 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
6639 | {
|
---|
6640 | collectRays.push_back(*rit);
|
---|
6641 | }
|
---|
6642 | }
|
---|
6643 |
|
---|
6644 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
6645 |
|
---|
6646 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
6647 |
|
---|
6648 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
6649 | {
|
---|
6650 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
6651 |
|
---|
6652 | if (p < raysOut)
|
---|
6653 | vcRays.push_back(*rit);
|
---|
6654 | }
|
---|
6655 |
|
---|
6656 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
6657 | }
|
---|
6658 |
|
---|
6659 |
|
---|
6660 | /////////////////
|
---|
6661 | //-- export view cell geometry
|
---|
6662 |
|
---|
6663 | exporter->SetWireframe();
|
---|
6664 |
|
---|
6665 | Material m;
|
---|
6666 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
6667 | exporter->SetForcedMaterial(m);
|
---|
6668 |
|
---|
6669 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
6670 | exporter->SetFilled();
|
---|
6671 |
|
---|
6672 | DEL_PTR(exporter);
|
---|
6673 | cout << "finished" << endl;
|
---|
6674 | }
|
---|
6675 |
|
---|
6676 | cout << endl;
|
---|
6677 | }
|
---|
6678 |
|
---|
6679 |
|
---|
6680 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
6681 | ViewCellContainer &viewCells) const
|
---|
6682 | {
|
---|
6683 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
6684 | }
|
---|
6685 |
|
---|
6686 |
|
---|
6687 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
6688 | const Vector3 &termination,
|
---|
6689 | ViewCellContainer &viewcells)
|
---|
6690 | {
|
---|
6691 | return mHierarchyManager->CastLineSegment(origin, termination, viewcells);
|
---|
6692 | }
|
---|
6693 |
|
---|
6694 |
|
---|
6695 | bool VspOspViewCellsManager::LineSegmentIntersects(const Vector3 &origin,
|
---|
6696 | const Vector3 &termination,
|
---|
6697 | ViewCell *viewCell)
|
---|
6698 | {
|
---|
6699 | return false;
|
---|
6700 | }
|
---|
6701 |
|
---|
6702 |
|
---|
6703 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
6704 | const bool exportPvs,
|
---|
6705 | const ObjectContainer &objects)
|
---|
6706 | {
|
---|
6707 | // no view cells were computed
|
---|
6708 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
6709 | return false;
|
---|
6710 |
|
---|
6711 | if (strstr(filename.c_str(), ".bn"))
|
---|
6712 | {
|
---|
6713 | return ExportViewCellsBinary(filename, exportPvs, objects);
|
---|
6714 | }
|
---|
6715 |
|
---|
6716 | //cout << "exporting binary" << endl; string fname("test.vc"); return ExportViewCellsBinary(fname, exportPvs, objects);
|
---|
6717 |
|
---|
6718 | const long starttime = GetTime();
|
---|
6719 | cout << "exporting view cells to xml ... ";
|
---|
6720 |
|
---|
6721 | OUT_STREAM stream(filename.c_str());
|
---|
6722 |
|
---|
6723 | // we need unique ids for each view cell
|
---|
6724 | CreateUniqueViewCellIds();
|
---|
6725 |
|
---|
6726 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
6727 | stream << "<VisibilitySolution>" << endl;
|
---|
6728 |
|
---|
6729 | if (exportPvs)
|
---|
6730 | {
|
---|
6731 | ///////////////
|
---|
6732 | //-- export bounding boxes
|
---|
6733 | //-- we need the boxes to identify objects in the target engine
|
---|
6734 |
|
---|
6735 | if (mUseKdPvs)
|
---|
6736 | {
|
---|
6737 | stream << "<BoundingBoxes>" << endl;
|
---|
6738 |
|
---|
6739 | int id = 0;
|
---|
6740 | vector<KdIntersectable *>::const_iterator kit, kit_end = mPreprocessor->mKdTree->mKdIntersectables.end();
|
---|
6741 |
|
---|
6742 | for (kit = mPreprocessor->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
6743 | {
|
---|
6744 | Intersectable *obj = (*kit);
|
---|
6745 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
6746 |
|
---|
6747 | // set kd node id
|
---|
6748 | obj->SetId(id);
|
---|
6749 |
|
---|
6750 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
6751 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
6752 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
6753 | }
|
---|
6754 |
|
---|
6755 | stream << "</BoundingBoxes>" << endl;
|
---|
6756 | }
|
---|
6757 | else
|
---|
6758 | {
|
---|
6759 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
6760 | }
|
---|
6761 | }
|
---|
6762 |
|
---|
6763 |
|
---|
6764 | //////////////////////////
|
---|
6765 | //-- export the view cells and the pvs
|
---|
6766 |
|
---|
6767 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
6768 |
|
---|
6769 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
6770 | mViewCellsTree->Export(stream, exportPvs);
|
---|
6771 | stream << "</ViewCells>" << endl;
|
---|
6772 |
|
---|
6773 |
|
---|
6774 | /////////////////
|
---|
6775 | //-- export the view space hierarchy
|
---|
6776 |
|
---|
6777 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
6778 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
6779 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
6780 |
|
---|
6781 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
6782 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
6783 |
|
---|
6784 | /////////////////
|
---|
6785 | //-- export the object space hierarchy
|
---|
6786 |
|
---|
6787 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
6788 |
|
---|
6789 | stream << "</VisibilitySolution>" << endl;
|
---|
6790 | stream.close();
|
---|
6791 |
|
---|
6792 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
6793 | return true;
|
---|
6794 | }
|
---|
6795 |
|
---|
6796 |
|
---|
6797 | bool VspOspViewCellsManager::ExportViewCellsBinary(const string filename,
|
---|
6798 | const bool exportPvs,
|
---|
6799 | const ObjectContainer &objects)
|
---|
6800 | {
|
---|
6801 | // no view cells constructed yet
|
---|
6802 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
6803 | return false;
|
---|
6804 |
|
---|
6805 | const long starttime = GetTime();
|
---|
6806 | cout << "exporting view cells to binary format ... ";
|
---|
6807 |
|
---|
6808 | OUT_STREAM stream(filename.c_str());
|
---|
6809 |
|
---|
6810 | // we need unique ids for each view cell
|
---|
6811 | CreateUniqueViewCellIds();
|
---|
6812 |
|
---|
6813 | int numBoxes = mPreprocessor->mKdTree->mKdIntersectables.size();
|
---|
6814 | stream.write(reinterpret_cast<char *>(&numBoxes), sizeof(int));
|
---|
6815 |
|
---|
6816 |
|
---|
6817 | ///////////////
|
---|
6818 | //-- export bounding boxes
|
---|
6819 |
|
---|
6820 | // we use bounding box intersection to identify pvs objects in the target engine
|
---|
6821 | vector<KdIntersectable *>::const_iterator kit, kit_end = mPreprocessor->mKdTree->mKdIntersectables.end();
|
---|
6822 |
|
---|
6823 | int id = 0;
|
---|
6824 |
|
---|
6825 | for (kit = mPreprocessor->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
6826 | {
|
---|
6827 | Intersectable *obj = (*kit);
|
---|
6828 | // set the kd node id to identify the kd node as a pvs entry
|
---|
6829 | obj->SetId(id);
|
---|
6830 |
|
---|
6831 | const AxisAlignedBox3 &box = obj->GetBox();
|
---|
6832 | Vector3 bmin = box.Min();
|
---|
6833 | Vector3 bmax = box.Max();
|
---|
6834 |
|
---|
6835 | stream.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
6836 | stream.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
6837 | stream.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
6838 | }
|
---|
6839 |
|
---|
6840 | cout << "written " << numBoxes << " kd nodes" << endl;
|
---|
6841 |
|
---|
6842 | ///////////////
|
---|
6843 | //-- export the view cells and the pvs
|
---|
6844 |
|
---|
6845 | int numViewCells = mViewCells.size();
|
---|
6846 | stream.write(reinterpret_cast<char *>(&numViewCells), sizeof(int));
|
---|
6847 |
|
---|
6848 | Vector3 vmin = mViewSpaceBox.Min();
|
---|
6849 | Vector3 vmax = mViewSpaceBox.Max();
|
---|
6850 |
|
---|
6851 | stream.write(reinterpret_cast<char *>(&vmin), sizeof(Vector3));
|
---|
6852 | stream.write(reinterpret_cast<char *>(&vmax), sizeof(Vector3));
|
---|
6853 |
|
---|
6854 |
|
---|
6855 | //////////
|
---|
6856 | //-- export binary view cells
|
---|
6857 |
|
---|
6858 | mViewCellsTree->ExportBinary(stream);
|
---|
6859 |
|
---|
6860 |
|
---|
6861 | /////////
|
---|
6862 | //-- export the view space hierarchy
|
---|
6863 |
|
---|
6864 | mHierarchyManager->GetVspTree()->ExportBinary(stream);
|
---|
6865 |
|
---|
6866 |
|
---|
6867 | ////////
|
---|
6868 | //-- export the object space hierarchy
|
---|
6869 |
|
---|
6870 | //mHierarchyManager->ExportObjectSpaceHierarchyBinary();
|
---|
6871 |
|
---|
6872 | stream.close();
|
---|
6873 |
|
---|
6874 | //mHierarchyManager->GetVspTree()->TestOutput("output.txt");
|
---|
6875 |
|
---|
6876 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
6877 | return true;
|
---|
6878 | }
|
---|
6879 |
|
---|
6880 |
|
---|
6881 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
6882 | const bool active) const
|
---|
6883 | {
|
---|
6884 | if (!ViewCellsConstructed())
|
---|
6885 | return NULL;
|
---|
6886 |
|
---|
6887 | if (!mViewSpaceBox.IsInside(point))
|
---|
6888 | return NULL;
|
---|
6889 |
|
---|
6890 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
6891 | }
|
---|
6892 |
|
---|
6893 |
|
---|
6894 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
6895 | {
|
---|
6896 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
6897 |
|
---|
6898 | ViewCellContainer leaves;
|
---|
6899 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
6900 |
|
---|
6901 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
6902 |
|
---|
6903 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
6904 | {
|
---|
6905 | VspLeaf *leaf = static_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
6906 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
6907 | IncludeBoxInMesh(box, *mesh);
|
---|
6908 | }
|
---|
6909 |
|
---|
6910 | mesh->ComputeBoundingBox();
|
---|
6911 |
|
---|
6912 | vc->SetMesh(mesh);
|
---|
6913 | }
|
---|
6914 |
|
---|
6915 |
|
---|
6916 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
6917 | {
|
---|
6918 | // matt: TODO
|
---|
6919 | return 0;
|
---|
6920 | }
|
---|
6921 |
|
---|
6922 |
|
---|
6923 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
6924 | {
|
---|
6925 | float area = 0;
|
---|
6926 | float volume = 0;
|
---|
6927 |
|
---|
6928 | ViewCellContainer leaves;
|
---|
6929 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
6930 |
|
---|
6931 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
6932 |
|
---|
6933 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
6934 | {
|
---|
6935 | VspLeaf *leaf = static_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
6936 |
|
---|
6937 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
6938 |
|
---|
6939 | const float lVol = box.GetVolume();
|
---|
6940 | const float lArea = box.SurfaceArea();
|
---|
6941 |
|
---|
6942 | area += lArea;
|
---|
6943 | volume += lVol;
|
---|
6944 |
|
---|
6945 | CreateMesh(*it);
|
---|
6946 | }
|
---|
6947 |
|
---|
6948 | viewCell->SetVolume(volume);
|
---|
6949 | viewCell->SetArea(area);
|
---|
6950 | }
|
---|
6951 |
|
---|
6952 |
|
---|
6953 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
6954 | {
|
---|
6955 | // TODO
|
---|
6956 | }
|
---|
6957 |
|
---|
6958 |
|
---|
6959 | void VspOspViewCellsManager::PrintCompressionStats(HierarchyManager *hm, const int pvsEntries)
|
---|
6960 | {
|
---|
6961 | const float mem = (float)pvsEntries * ObjectPvs::GetEntrySize();
|
---|
6962 |
|
---|
6963 | float fullmem = mem +
|
---|
6964 | (hm->GetVspTree()->GetStatistics().Leaves() * 16 +
|
---|
6965 | hm->mBvHierarchy->GetStatistics().Leaves() * 16) / float(1024 * 1024);
|
---|
6966 |
|
---|
6967 | cout << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
6968 | Debug << "entries: " << pvsEntries << ", mem=" << mem << ", fullmem=" << fullmem <<endl;
|
---|
6969 | }
|
---|
6970 |
|
---|
6971 |
|
---|
6972 | void VspOspViewCellsManager::CompressViewCells()
|
---|
6973 | {
|
---|
6974 | if (!(ViewCellsTreeConstructed() && mCompressViewCells))
|
---|
6975 | return;
|
---|
6976 |
|
---|
6977 |
|
---|
6978 | ////////////
|
---|
6979 | //-- compression
|
---|
6980 |
|
---|
6981 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
6982 |
|
---|
6983 | cout << "before compression: " << endl;
|
---|
6984 | Debug << "before compression: " << endl;
|
---|
6985 |
|
---|
6986 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
6987 |
|
---|
6988 | if (mCompressObjects)
|
---|
6989 | {
|
---|
6990 | cout << "compressing in the objects: " << endl;
|
---|
6991 | Debug << "compressing in the objects: " << endl;
|
---|
6992 |
|
---|
6993 | pvsEntries = mHierarchyManager->CompressObjectSpace();
|
---|
6994 | }
|
---|
6995 | else
|
---|
6996 | {
|
---|
6997 | cout << "compressing in the view space: " << endl;
|
---|
6998 | Debug << "compressing in the view space: " << endl;
|
---|
6999 |
|
---|
7000 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
7001 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
7002 | }
|
---|
7003 |
|
---|
7004 | PrintCompressionStats(mHierarchyManager, pvsEntries);
|
---|
7005 | }
|
---|
7006 |
|
---|
7007 |
|
---|
7008 | void VspOspViewCellsManager::CollectObjects(const AxisAlignedBox3 &box,
|
---|
7009 | ObjectContainer &objects)
|
---|
7010 | {
|
---|
7011 | mHierarchyManager->CollectObjects(box, objects);
|
---|
7012 | }
|
---|
7013 |
|
---|
7014 |
|
---|
7015 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
7016 | {
|
---|
7017 | int samplesPerPass;
|
---|
7018 | int castSamples = 0;
|
---|
7019 | int oldSamples = 0;
|
---|
7020 | int samplesForStats;
|
---|
7021 | char statsPrefix[100];
|
---|
7022 | char suffix[100];
|
---|
7023 | int splitsStepSize;
|
---|
7024 |
|
---|
7025 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
7026 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesForStats", samplesForStats);
|
---|
7027 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", mEvaluationSamples);
|
---|
7028 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
7029 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.stepSize", splitsStepSize);
|
---|
7030 |
|
---|
7031 | bool useHisto;
|
---|
7032 | int histoMem;
|
---|
7033 |
|
---|
7034 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
7035 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoMem", histoMem);
|
---|
7036 |
|
---|
7037 | Debug << "step size: " << splitsStepSize << endl;
|
---|
7038 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
7039 | Debug << "view cell evaluation samples: " << mEvaluationSamples << endl;
|
---|
7040 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
7041 |
|
---|
7042 | cout << "reseting pvs ... ";
|
---|
7043 |
|
---|
7044 | // reset pvs and start over from zero
|
---|
7045 | mViewCellsTree->ResetPvs();
|
---|
7046 |
|
---|
7047 | cout << "finished" << endl;
|
---|
7048 | cout << "Evaluating view cell partition ... " << endl;
|
---|
7049 |
|
---|
7050 | int pass = 0;
|
---|
7051 |
|
---|
7052 | while (castSamples < mEvaluationSamples)
|
---|
7053 | {
|
---|
7054 | ///////////////
|
---|
7055 | //-- we have to use uniform sampling strategy for construction rays
|
---|
7056 |
|
---|
7057 | VssRayContainer evaluationSamples;
|
---|
7058 | const int samplingType = mEvaluationSamplingType;
|
---|
7059 |
|
---|
7060 | long startTime = GetTime();
|
---|
7061 | Real timeDiff;
|
---|
7062 |
|
---|
7063 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
7064 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
7065 |
|
---|
7066 | // use mixed distributions
|
---|
7067 | CastEvaluationSamples(samplesPerPass, evaluationSamples);
|
---|
7068 |
|
---|
7069 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
7070 | cout << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
7071 | Debug << "finished in " << timeDiff * 1e-3f << " secs" << endl;
|
---|
7072 |
|
---|
7073 | // don't computed sample contributions
|
---|
7074 | // because already accounted for inside the mixture distribution!
|
---|
7075 |
|
---|
7076 | castSamples += samplesPerPass;
|
---|
7077 |
|
---|
7078 | if ((castSamples >= samplesForStats + oldSamples) ||
|
---|
7079 | (castSamples >= mEvaluationSamples))
|
---|
7080 | {
|
---|
7081 | oldSamples += samplesForStats;
|
---|
7082 |
|
---|
7083 | ///////////
|
---|
7084 | //-- output stats
|
---|
7085 |
|
---|
7086 | sprintf(suffix, "-%09d-eval.log", castSamples);
|
---|
7087 | const string filename = string(statsPrefix) + string(suffix);
|
---|
7088 |
|
---|
7089 | startTime = GetTime();
|
---|
7090 |
|
---|
7091 | cout << "compute new statistics ... " << endl;
|
---|
7092 |
|
---|
7093 | ofstream ofstr(filename.c_str());
|
---|
7094 | mHierarchyManager->EvaluateSubdivision(ofstr, splitsStepSize, false, useHisto, histoMem, pass);
|
---|
7095 |
|
---|
7096 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
7097 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
7098 | cout << "*************************************" << endl;
|
---|
7099 |
|
---|
7100 | Debug << "statistics computed in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
7101 |
|
---|
7102 | ++ pass;
|
---|
7103 | }
|
---|
7104 |
|
---|
7105 | disposeRays(evaluationSamples, NULL);
|
---|
7106 | }
|
---|
7107 |
|
---|
7108 | ////////////
|
---|
7109 | //-- histogram
|
---|
7110 |
|
---|
7111 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
7112 | int histoStepSize;
|
---|
7113 |
|
---|
7114 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
7115 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
7116 |
|
---|
7117 | if (useHisto)
|
---|
7118 | {
|
---|
7119 | // evaluate view cells in a histogram
|
---|
7120 | char str[64];
|
---|
7121 |
|
---|
7122 | // hack: just show final view cells
|
---|
7123 | const int pass = (int)mViewCells.size();
|
---|
7124 |
|
---|
7125 | //for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
7126 |
|
---|
7127 | string filename;
|
---|
7128 |
|
---|
7129 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
7130 |
|
---|
7131 | ///////////////////
|
---|
7132 | //-- evaluate histogram for pvs size
|
---|
7133 |
|
---|
7134 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
7135 |
|
---|
7136 | sprintf(str, "-%09d-histo-pvs2.log", pass);
|
---|
7137 | filename = string(statsPrefix) + string(str);
|
---|
7138 |
|
---|
7139 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
7140 | }
|
---|
7141 | }
|
---|
7142 |
|
---|
7143 |
|
---|
7144 | void VspOspViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
7145 | {
|
---|
7146 | ViewCellsManager::FinalizeViewCells(createMesh);
|
---|
7147 |
|
---|
7148 | if (mHierarchyManager->mUseTraversalTree)
|
---|
7149 | { // create a traversal tree for optimal view cell casting
|
---|
7150 | mHierarchyManager->CreateTraversalTree();
|
---|
7151 | }
|
---|
7152 | }
|
---|
7153 |
|
---|
7154 |
|
---|
7155 | #if TEST_PACKETS
|
---|
7156 |
|
---|
7157 | float VspOspViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
7158 | const bool addContributions,
|
---|
7159 | const bool storeViewCells,
|
---|
7160 | const bool useHitObjects)
|
---|
7161 | {
|
---|
7162 | if (!ViewCellsConstructed())
|
---|
7163 | return 0;
|
---|
7164 |
|
---|
7165 | float sum = 0.0f;
|
---|
7166 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
7167 |
|
---|
7168 | VssRayContainer tmpRays;
|
---|
7169 |
|
---|
7170 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
7171 | {
|
---|
7172 | sum += ComputeSampleContribution(*(*it), addContributions, storeViewCells, useHitObjects);
|
---|
7173 |
|
---|
7174 | tmpRays.push_back(new VssRay(*(*it)));
|
---|
7175 |
|
---|
7176 | if (tmpRays.size() == 4)
|
---|
7177 | {
|
---|
7178 | // cast packets of 4 rays
|
---|
7179 | RayPacket packet(tmpRays);
|
---|
7180 | mHierarchyManager->CastLineSegment(packet);
|
---|
7181 |
|
---|
7182 | for (int i = 0; i < 4; ++ i)
|
---|
7183 | {
|
---|
7184 | ComputeSampleContribution(*tmpRays[i], addContributions, true, useHitObjects);
|
---|
7185 | // compare results
|
---|
7186 | cout << "ray " << i << ": " << (int)tmpRays[i]->mViewCells.size() << " "
|
---|
7187 | << (int)packet.mViewCells[i].size() << endl;
|
---|
7188 | }
|
---|
7189 |
|
---|
7190 | CLEAR_CONTAINER(tmpRays);
|
---|
7191 | }
|
---|
7192 | }
|
---|
7193 |
|
---|
7194 | CLEAR_CONTAINER(tmpRays);
|
---|
7195 |
|
---|
7196 | #ifdef PERFTIMER
|
---|
7197 | cout << "view cell cast time: " << viewCellCastTimer.TotalTime() << " s" << endl;
|
---|
7198 | Debug << "view cell cast time: " << viewCellCastTimer.TotalTime() << " s" << endl;
|
---|
7199 | cout << "pvs time: " << pvsTimer.TotalTime() << " s" << endl;
|
---|
7200 | Debug << "pvs time: " << pvsTimer.TotalTime() << " s" << endl;
|
---|
7201 | #endif
|
---|
7202 |
|
---|
7203 | return sum;
|
---|
7204 | }
|
---|
7205 |
|
---|
7206 | #endif
|
---|
7207 |
|
---|
7208 |
|
---|
7209 | ViewCellsManager *
|
---|
7210 | ViewCellsManager::LoadViewCellsBinary(const string &filename,
|
---|
7211 | ObjectContainer &pvsObjects,
|
---|
7212 | bool finalizeViewCells,
|
---|
7213 | BoundingBoxConverter *bconverter)
|
---|
7214 | {
|
---|
7215 | IN_STREAM stream(filename.c_str());
|
---|
7216 |
|
---|
7217 | if (!stream.is_open())
|
---|
7218 | {
|
---|
7219 | Debug << "View cells loading failed: could not open file" << endl;
|
---|
7220 | return NULL;
|
---|
7221 | }
|
---|
7222 |
|
---|
7223 | Debug << "loading boxes" << endl;
|
---|
7224 |
|
---|
7225 | const long startTime = GetTime();
|
---|
7226 |
|
---|
7227 | // load all the bounding boxes
|
---|
7228 | IndexedBoundingBoxContainer iboxes;
|
---|
7229 | ViewCellsManager::LoadIndexedBoundingBoxesBinary(stream, iboxes);
|
---|
7230 |
|
---|
7231 | pvsObjects.reserve(iboxes.size());
|
---|
7232 |
|
---|
7233 | if (bconverter)
|
---|
7234 | {
|
---|
7235 | // associate object ids with bounding boxes
|
---|
7236 | bconverter->IdentifyObjects(iboxes, pvsObjects);
|
---|
7237 | }
|
---|
7238 |
|
---|
7239 |
|
---|
7240 | ObjectContainer pvsLookup;
|
---|
7241 | pvsLookup.resize(iboxes.size());
|
---|
7242 |
|
---|
7243 | for (size_t i = 0; i < pvsLookup.size(); ++ i)
|
---|
7244 | {
|
---|
7245 | pvsLookup[i] = NULL;
|
---|
7246 | }
|
---|
7247 |
|
---|
7248 | for (size_t i = 0; i < pvsObjects.size(); ++ i)
|
---|
7249 | {
|
---|
7250 | pvsLookup[pvsObjects[i]->GetId()] = pvsObjects[i];
|
---|
7251 | }
|
---|
7252 |
|
---|
7253 |
|
---|
7254 | /////////////
|
---|
7255 | //-- load the view cells
|
---|
7256 |
|
---|
7257 | int numViewCells;
|
---|
7258 | stream.read(reinterpret_cast<char *>(&numViewCells), sizeof(int));
|
---|
7259 |
|
---|
7260 | Debug << "loading " << numViewCells << " view cells " << endl;
|
---|
7261 |
|
---|
7262 | Vector3 vmin, vmax;
|
---|
7263 |
|
---|
7264 | stream.read(reinterpret_cast<char *>(&vmin), sizeof(Vector3));
|
---|
7265 | stream.read(reinterpret_cast<char *>(&vmax), sizeof(Vector3));
|
---|
7266 |
|
---|
7267 | AxisAlignedBox3 viewSpaceBox(vmin, vmax);
|
---|
7268 |
|
---|
7269 | Debug << "view space box: " << viewSpaceBox << endl;
|
---|
7270 |
|
---|
7271 | ViewCellsTree *vcTree = new ViewCellsTree();
|
---|
7272 |
|
---|
7273 | if (!vcTree->ImportBinary(stream, pvsLookup))
|
---|
7274 | {
|
---|
7275 | Debug << "Error: loading view cells tree failed!" << endl;
|
---|
7276 | delete vcTree;
|
---|
7277 |
|
---|
7278 | return NULL;
|
---|
7279 | }
|
---|
7280 |
|
---|
7281 | Debug << "loading the view space partition tree" << endl;
|
---|
7282 | VspTree *vspTree = new VspTree(viewSpaceBox);
|
---|
7283 |
|
---|
7284 | if (!vspTree->ImportBinary(stream))
|
---|
7285 | {
|
---|
7286 | Debug << "Error: loading vsp tree failed!" << endl;
|
---|
7287 | delete vcTree; delete vspTree;
|
---|
7288 |
|
---|
7289 | return NULL;
|
---|
7290 | }
|
---|
7291 |
|
---|
7292 |
|
---|
7293 | HierarchyManager * hm =
|
---|
7294 | new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
7295 |
|
---|
7296 | hm->SetVspTree(vspTree);
|
---|
7297 |
|
---|
7298 |
|
---|
7299 | /////////
|
---|
7300 | //-- create view cells manager
|
---|
7301 |
|
---|
7302 | VspOspViewCellsManager *vm = new VspOspViewCellsManager(vcTree, hm);
|
---|
7303 |
|
---|
7304 |
|
---|
7305 | //////////////
|
---|
7306 | //-- do some more preparation
|
---|
7307 |
|
---|
7308 | vm->mViewSpaceBox = viewSpaceBox;
|
---|
7309 | vm->mViewCells.clear();
|
---|
7310 |
|
---|
7311 | ViewCellContainer viewCells;
|
---|
7312 | vcTree->CollectLeaves(vcTree->GetRoot(), viewCells);
|
---|
7313 |
|
---|
7314 | ViewCellContainer::const_iterator cit, cit_end = viewCells.end();
|
---|
7315 |
|
---|
7316 | for (cit = viewCells.begin(); cit != cit_end; ++ cit)
|
---|
7317 | {
|
---|
7318 | vm->mViewCells.push_back(*cit);
|
---|
7319 | }
|
---|
7320 |
|
---|
7321 |
|
---|
7322 | //////////////
|
---|
7323 | //-- associate view cells with vsp leaves
|
---|
7324 |
|
---|
7325 | vector<VspLeaf *> vspLeaves;
|
---|
7326 | vspTree->CollectLeaves(vspLeaves);
|
---|
7327 |
|
---|
7328 | vector<VspLeaf *>::const_iterator vit, vit_end = vspLeaves.end();
|
---|
7329 | cit = viewCells.begin();
|
---|
7330 |
|
---|
7331 | for (vit = vspLeaves.begin(); vit != vit_end; ++ vit, ++ cit)
|
---|
7332 | {
|
---|
7333 | VspLeaf *leaf = *vit;
|
---|
7334 | VspViewCell *vc = static_cast<VspViewCell *>(*cit);
|
---|
7335 |
|
---|
7336 | leaf->SetViewCell(vc);
|
---|
7337 | vc->mLeaves.push_back(leaf);
|
---|
7338 | }
|
---|
7339 |
|
---|
7340 |
|
---|
7341 | /*for (cit = viewCells.begin(); cit != cit_end; ++ cit)
|
---|
7342 | {
|
---|
7343 | Debug << "pvssize: " << (*cit)->GetPvs().GetSize();
|
---|
7344 | }*/
|
---|
7345 |
|
---|
7346 |
|
---|
7347 | vm->mViewCellsFinished = true;
|
---|
7348 | vm->mMaxPvsSize = (int)pvsObjects.size();
|
---|
7349 |
|
---|
7350 | if (finalizeViewCells)
|
---|
7351 | {
|
---|
7352 | // create the meshes and compute view cell volumes
|
---|
7353 | const bool createMeshes = true;
|
---|
7354 | vm->FinalizeViewCells(createMeshes);
|
---|
7355 | }
|
---|
7356 |
|
---|
7357 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
7358 | << TimeDiff(startTime, GetTime()) * 1e-6f << " secs" << endl;
|
---|
7359 |
|
---|
7360 | //vspTree->TestOutput("input.txt");
|
---|
7361 |
|
---|
7362 | return vm;
|
---|
7363 | }
|
---|
7364 |
|
---|
7365 | }
|
---|