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 |
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25 |
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26 | // should not count origin object for sampling because it disturbs heuristics
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27 | #define SAMPLE_ORIGIN_OBJECTS 0
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28 |
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29 | namespace GtpVisibilityPreprocessor {
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30 |
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31 |
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32 | // HACK
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33 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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34 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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35 |
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36 |
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37 | template <typename T> class myless
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38 | {
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39 | public:
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40 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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41 | bool operator() (T v1, T v2) const
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42 | {
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43 | return (v1->GetMergeCost() < v2->GetMergeCost());
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44 | }
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45 | };
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46 |
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47 |
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48 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
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49 | mRenderer(NULL),
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50 | mInitialSamples(0),
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51 | mConstructionSamples(0),
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52 | mPostProcessSamples(0),
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53 | mVisualizationSamples(0),
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54 | mTotalAreaValid(false),
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55 | mTotalArea(0.0f),
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56 | mViewCellsFinished(false),
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57 | mMaxPvsSize(9999999),
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58 | mMinPvsSize(0), // one means only empty view cells are invalid
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59 | mMaxPvsRatio(1.0),
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60 | mViewCellPvsIsUpdated(false),
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61 | mPreprocessor(NULL),
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62 | mViewCellsTree(viewCellsTree)
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63 | {
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64 | mViewSpaceBox.Initialize();
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65 | ParseEnvironment();
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66 |
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67 | mViewCellsTree->SetViewCellsManager(this);
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68 | //mViewCellsTree = new ViewCellsTree(this);
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69 | }
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70 |
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71 |
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72 | void ViewCellsManager::ParseEnvironment()
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73 | {
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74 | // visualization stuff
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75 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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76 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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77 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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78 |
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79 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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80 |
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81 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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82 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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83 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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84 |
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85 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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86 |
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87 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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88 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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89 |
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90 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
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91 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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92 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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93 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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94 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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95 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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96 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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97 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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98 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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99 |
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100 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
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101 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
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102 |
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103 | char buf[100];
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104 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
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105 |
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106 |
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107 | // sampling type for view cells construction samples
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108 | if (strcmp(buf, "box") == 0)
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109 | {
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110 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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111 | }
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112 | else if (strcmp(buf, "directional") == 0)
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113 | {
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114 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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115 | }
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116 | else if (strcmp(buf, "object_directional") == 0)
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117 | {
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118 | mSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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119 | }
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120 | /*else if (strcmp(buf, "interior") == 0)
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121 | {
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122 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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123 | }*/
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124 | else
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125 | {
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126 | Debug << "error! wrong sampling type" << endl;
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127 | exit(0);
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128 | }
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129 |
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130 | // sampling type for evaluation samples
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131 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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132 |
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133 | if (strcmp(buf, "box") == 0)
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134 | {
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135 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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136 | }
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137 | else if (strcmp(buf, "directional") == 0)
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138 | {
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139 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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140 | }
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141 | else if (strcmp(buf, "object_directional") == 0)
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142 | {
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143 | mEvaluationSamplingType = Preprocessor::OBJECT_DIRECTION_BASED_DISTRIBUTION;
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144 | }
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145 | /*else if (strcmp(buf, "interior") == 0)
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146 | {
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147 | mEvaluationSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
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148 | }*/
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149 | else
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150 | {
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151 | Debug << "error! wrong sampling type" << endl;
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152 | exit(0);
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153 | }
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154 |
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155 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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156 |
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157 | if (strcmp(buf, "perobject") == 0)
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158 | {
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159 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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160 | }
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161 | else if (strcmp(buf, "directional") == 0)
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162 | {
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163 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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164 | }
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165 | else
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166 | {
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167 | Debug << "error! wrong sampling type" << endl;
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168 | exit(0);
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169 | }
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170 |
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171 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
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172 |
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173 | if (strcmp(buf, "PVS") == 0)
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174 | mColorCode = 1;
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175 | else if (strcmp(buf, "MergedLeaves") == 0)
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176 | mColorCode = 2;
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177 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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178 | mColorCode = 3;
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179 | else
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180 | mColorCode = 0;
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181 |
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182 |
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183 |
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184 | Debug << "************ View Cells options ***************" << endl;
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185 | Debug << "color code: " << mColorCode << endl;
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186 |
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187 | Debug << "export rays: " << mExportRays << endl;
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188 | Debug << "export geometry: " << mExportGeometry << endl;
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189 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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190 |
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191 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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192 | Debug << "construction samples: " << mConstructionSamples << endl;
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193 | Debug << "post process samples: " << mPostProcessSamples << endl;
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194 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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195 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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196 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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197 | Debug << "export to file: " << mExportViewCells << endl;
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198 |
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199 | Debug << "active view cells: " << mNumActiveViewCells << endl;
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200 | Debug << "post process compress: " << mCompressViewCells << endl;
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201 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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202 | Debug << "post process merge: " << mMergeViewCells << endl;
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203 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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204 | Debug << "sampling type: " << mSamplingType << endl;
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205 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
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206 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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207 | Debug << "show visualization: " << mShowVisualization << endl;
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208 | Debug << "filter width: " << mFilterWidth << endl;
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209 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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210 |
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211 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
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212 | Debug << "export pvs for view cells: " << mExportPvs << endl;
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213 |
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214 | Debug << endl;
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215 | }
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216 |
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217 |
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218 | ViewCellsManager::~ViewCellsManager()
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219 | {
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220 | // HACK: if view cells tree does not
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221 | // handle view cells, we have to do it here
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222 | // question: rather create view cells resource manager?
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223 | if (!ViewCellsTreeConstructed())
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224 | {
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225 | CLEAR_CONTAINER(mViewCells);
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226 | }
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227 | //DEL_PTR(mViewCellsTree);
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228 | }
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229 |
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230 |
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231 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
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232 | {
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233 | Mesh *m = vc->GetMesh();
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234 |
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235 | if (m) {
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236 | m->ComputeBoundingBox();
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237 | return m->mBox;
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238 | }
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239 |
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240 | AxisAlignedBox3 box;
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241 |
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242 | box.Initialize();
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243 |
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244 | if (!vc->IsLeaf()) {
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245 | ViewCellInterior *vci = (ViewCellInterior *) vc;
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246 |
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247 | ViewCellContainer::iterator it = vci->mChildren.begin();
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248 | for (; it != vci->mChildren.end(); ++it) {
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249 | box.Include(GetViewCellBox(*it));
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250 | }
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251 | }
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252 |
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253 | return box;
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254 | }
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255 |
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256 |
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257 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
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258 | {
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259 | return false;
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260 | }
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261 |
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262 |
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263 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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264 | const int sampleType,
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265 | VssRayContainer &passSamples) const
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266 | {
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267 | SimpleRayContainer simpleRays;
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268 | const long startTime = GetTime();
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269 |
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270 | mPreprocessor->GenerateRays(samplesPerPass, sampleType, simpleRays);
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271 | Debug << "generated " << mInitialSamples << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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272 |
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273 | // shoot simple ray and add it to importance samples
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274 | mPreprocessor->CastRays(simpleRays, passSamples);
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275 | Debug << "cast " << mInitialSamples << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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276 |
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277 | return (int)passSamples.size();
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278 | }
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279 |
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280 |
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281 | /// helper function which destroys rays or copies them into the output ray container
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282 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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283 | {
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284 | cout << "disposing samples ... ";
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285 | long startTime = GetTime();
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286 | int n = (int)rays.size();
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287 |
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288 | if (outRays)
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289 | {
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290 | VssRayContainer::const_iterator it, it_end = rays.end();
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291 |
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292 | for (it = rays.begin(); it != it_end; ++ it)
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293 | {
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294 | outRays->push_back(*it);
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295 | }
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296 | }
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297 | else
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298 | {
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299 | VssRayContainer::const_iterator it, it_end = rays.end();
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300 |
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301 | for (it = rays.begin(); it != it_end; ++ it)
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302 | {
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303 | //(*it)->Unref();
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304 | if (!(*it)->IsActive())
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305 | delete (*it);
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306 | }
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307 | }
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308 |
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309 | cout << "finished" << endl;
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310 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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311 | }
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312 |
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313 |
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314 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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315 | {
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316 | int numSamples = 0;
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317 |
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318 | SimpleRayContainer simpleRays;
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319 | VssRayContainer initialSamples;
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320 |
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321 | // store pointer to preprocessor for further use during construction
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322 | mPreprocessor = preprocessor;
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323 |
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324 |
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325 | ///////////////////////////////////////////////////////
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326 | //-- Initial sampling for the construction of the view cell hierarchy.
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327 | //-- We use uniform sampling / box based sampling.
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328 |
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329 | long startTime = GetTime();
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330 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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331 |
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332 | // cast initial samples
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333 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
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334 |
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335 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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336 |
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337 | // construct view cells
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338 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
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339 |
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340 | // initial samples count for overall samples ...
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341 | numSamples += mInitialSamples;
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342 |
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343 | // rays can be passed or deleted
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344 | disposeRays(initialSamples, outRays);
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345 |
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346 | cout << "time needed for initial construction: "
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347 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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348 |
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349 | Debug << "time needed for initial construction: "
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350 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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351 |
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352 |
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353 | ///////////////////////////////////////////
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354 | //-- Initial hierarchy construction finished
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355 | //-- We can do some stats and visualization
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356 |
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357 | ResetViewCells();
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358 | if (0) Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
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359 |
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360 | //-- optionally export initial view cell partition
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361 | if (0)
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362 | {
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363 | const string filename("viewcells.wrl");
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364 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
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365 |
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366 | if (exporter)
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367 | {
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368 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
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369 |
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370 | if (mExportGeometry)
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371 | {
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372 | exporter->ExportGeometry(preprocessor->mObjects);
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373 | }
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374 |
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375 | exporter->SetWireframe();
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376 | ExportViewCellsForViz(exporter);
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377 |
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378 | delete exporter;
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379 | cout << "finished" << endl;
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380 | }
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381 | }
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382 |
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383 |
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384 | ////////////////////////////////////////////////
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385 | //
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386 | //-- Cast some more sampling after initial construction.
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387 | //-- The additional rays can be used to gain
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388 | //-- some more information before the bottom-up merge
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389 | //-- note: guided rays could be used for this task
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390 |
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391 | // time spent after construction of the initial partition
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392 | startTime = GetTime();
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393 | const int n = mConstructionSamples; //+initialSamples;
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394 | // should we use directional samples?
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395 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
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396 |
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397 | while (numSamples < n)
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398 | {
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399 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
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400 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
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401 |
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402 | VssRayContainer constructionSamples;
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403 |
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404 | const int samplingType = mSamplingType;
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405 | /*dirSamples ?
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406 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
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407 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
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408 |
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409 | if (0) dirSamples = !dirSamples; // toggle sampling method
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410 |
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411 | // cast new samples
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412 | numSamples += CastPassSamples(mSamplesPerPass,
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413 | samplingType,
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414 | constructionSamples);
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415 |
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416 | cout << "finished" << endl;
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417 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
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418 |
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419 | // computes sample contribution of cast rays TODO: leak?
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420 | if (SAMPLE_AFTER_SUBDIVISION)
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421 | ComputeSampleContributions(constructionSamples, true, false);
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422 |
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423 | cout << "finished" << endl;
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424 |
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425 | disposeRays(constructionSamples, outRays);
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426 | cout << "total samples: " << numSamples << endl;
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427 | }
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428 |
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429 |
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430 | #if 0
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431 | ////////////////////////////////////////////////
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432 | //-- get stats after the additional sampling step
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433 | //-- and before the bottom-up merge step
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434 |
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435 | EvaluateViewCellsStats();
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436 | Debug << "\noriginal view cell partition before post process:\n"
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437 | << mCurrentViewCellsStats << endl;
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438 |
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439 | mRenderer->RenderScene();
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440 | SimulationStatistics ss;
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441 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
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442 |
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443 | Debug << ss << endl;
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444 | #endif
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445 |
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446 |
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447 | ///////////////////////////////////////////////
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448 | //
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449 | //-- post processing of the initial construction
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450 | //-- We can bottom-up merge the view cells in this step
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451 |
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452 |
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453 | // we can additionally cast some post processing sample rays.
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454 | // These rays can be used to store the view cells with the rays
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---|
455 | VssRayContainer postProcessSamples;
|
---|
456 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
457 |
|
---|
458 | CastPassSamples(mPostProcessSamples, mSamplingType, postProcessSamples);
|
---|
459 |
|
---|
460 | cout << "finished" << endl;
|
---|
461 | cout << "starting post processing and visualization" << endl;
|
---|
462 |
|
---|
463 | // store view cells for post processing?
|
---|
464 | const bool storeViewCells = true;
|
---|
465 |
|
---|
466 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
467 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
468 |
|
---|
469 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
470 |
|
---|
471 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
472 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
473 |
|
---|
474 | Debug << "post processing time: " << secs << endl;
|
---|
475 | disposeRays(postProcessSamples, outRays);
|
---|
476 |
|
---|
477 |
|
---|
478 | //////////////////////////////////////////////////////////////
|
---|
479 | //-- Evaluation of the resulting view cell partition.
|
---|
480 | //-- We cast a number of new samples and measure the render cost
|
---|
481 |
|
---|
482 | if (mEvaluateViewCells)
|
---|
483 | {
|
---|
484 | EvalViewCellPartition();
|
---|
485 | }
|
---|
486 |
|
---|
487 |
|
---|
488 | ///////////////////////////////////
|
---|
489 | //-- Finally, we do some visualization
|
---|
490 |
|
---|
491 | if (mShowVisualization)
|
---|
492 | {
|
---|
493 | VssRayContainer visualizationSamples;
|
---|
494 |
|
---|
495 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
496 | CastPassSamples(mVisualizationSamples,
|
---|
497 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
498 | visualizationSamples);
|
---|
499 |
|
---|
500 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
501 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
502 |
|
---|
503 | // different visualizations
|
---|
504 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
505 |
|
---|
506 | disposeRays(visualizationSamples, outRays);
|
---|
507 | }
|
---|
508 |
|
---|
509 | return numSamples;
|
---|
510 | }
|
---|
511 |
|
---|
512 |
|
---|
513 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
514 | const int nViewCells)
|
---|
515 | {
|
---|
516 | std::ofstream outstream;
|
---|
517 | outstream.open(filename.c_str());
|
---|
518 |
|
---|
519 | ViewCellContainer viewCells;
|
---|
520 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
521 |
|
---|
522 | float maxRenderCost, minRenderCost;
|
---|
523 |
|
---|
524 | // sort by render cost
|
---|
525 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
526 |
|
---|
527 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
528 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
529 |
|
---|
530 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
531 |
|
---|
532 | int histoIntervals;
|
---|
533 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
534 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
535 |
|
---|
536 | int histoMaxVal;
|
---|
537 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
538 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
539 |
|
---|
540 |
|
---|
541 | const float range = maxRenderCost - minRenderCost;
|
---|
542 | const float stepSize = range / (float)intervals;
|
---|
543 |
|
---|
544 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
545 |
|
---|
546 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
547 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
548 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
549 |
|
---|
550 | int j = 0;
|
---|
551 | int i = 0;
|
---|
552 |
|
---|
553 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
554 |
|
---|
555 | // count for integral
|
---|
556 | float volSum = 0;
|
---|
557 | int smallerCostSum = 0;
|
---|
558 |
|
---|
559 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
560 | while (1)
|
---|
561 | {
|
---|
562 | // count for histogram value
|
---|
563 | float volDif = 0;
|
---|
564 | int smallerCostDif = 0;
|
---|
565 |
|
---|
566 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
567 | {
|
---|
568 | volSum += viewCells[i]->GetVolume();
|
---|
569 | volDif += viewCells[i]->GetVolume();
|
---|
570 |
|
---|
571 | ++ i;
|
---|
572 | ++ smallerCostSum;
|
---|
573 | ++ smallerCostDif;
|
---|
574 | }
|
---|
575 |
|
---|
576 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
577 | break;
|
---|
578 |
|
---|
579 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
580 | const float volRatioSum = volSum / totalVol;
|
---|
581 | const float volRatioDif = volDif / totalVol;
|
---|
582 |
|
---|
583 | outstream << "#Pass\n" << j ++ << endl;
|
---|
584 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
585 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
586 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
587 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
588 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
589 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
590 |
|
---|
591 | // increase current render cost
|
---|
592 | currentRenderCost += stepSize;
|
---|
593 | }
|
---|
594 |
|
---|
595 | outstream.close();
|
---|
596 | }
|
---|
597 |
|
---|
598 |
|
---|
599 |
|
---|
600 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
601 | ObjectContainer *objects,
|
---|
602 | const bool finalizeViewCells,
|
---|
603 | BoundingBoxConverter *bconverter)
|
---|
604 |
|
---|
605 | {
|
---|
606 | ViewCellsParser parser;
|
---|
607 |
|
---|
608 | ViewCellsManager *vm = NULL;
|
---|
609 |
|
---|
610 | if (parser.ParseViewCellsFile(filename, &vm, objects, bconverter))
|
---|
611 | {
|
---|
612 | long startTime = GetTime();
|
---|
613 |
|
---|
614 | //vm->PrepareLoadedViewCells();
|
---|
615 | vm->ResetViewCells();
|
---|
616 |
|
---|
617 | vm->mViewCellsFinished = true;
|
---|
618 | vm->mMaxPvsSize = (int)objects->size();
|
---|
619 |
|
---|
620 | // create the meshes and compute volumes
|
---|
621 | if (finalizeViewCells)
|
---|
622 | {
|
---|
623 | vm->FinalizeViewCells(true);
|
---|
624 | vm->mViewCellsTree->AssignRandomColors();
|
---|
625 | }
|
---|
626 |
|
---|
627 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
628 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
629 | }
|
---|
630 | else
|
---|
631 | {
|
---|
632 | Debug << "Error: loading view cells failed!" << endl;
|
---|
633 | DEL_PTR(vm);
|
---|
634 | }
|
---|
635 |
|
---|
636 | return vm;
|
---|
637 | }
|
---|
638 |
|
---|
639 |
|
---|
640 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
641 | const bool exportPvs,
|
---|
642 | const ObjectContainer &objects)
|
---|
643 | {
|
---|
644 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
645 | return false;
|
---|
646 |
|
---|
647 | cout << "exporting view cells to xml ... ";
|
---|
648 |
|
---|
649 | OUT_STREAM stream(filename.c_str());
|
---|
650 |
|
---|
651 | // for output we need unique ids for each view cell
|
---|
652 | CreateUniqueViewCellIds();
|
---|
653 |
|
---|
654 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
655 | stream << "<VisibilitySolution>" << endl;
|
---|
656 |
|
---|
657 | if (exportPvs)
|
---|
658 | {
|
---|
659 | //-- export bounding boxes
|
---|
660 |
|
---|
661 | stream << "<BoundingBoxes>" << endl;
|
---|
662 |
|
---|
663 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
664 |
|
---|
665 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
666 | {
|
---|
667 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*oit);
|
---|
668 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
669 |
|
---|
670 | //-- the bounding boxes
|
---|
671 | stream << "<BoundingBox" << " id=\"" << mi->GetId() << "\""
|
---|
672 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
673 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
674 | }
|
---|
675 |
|
---|
676 | stream << "</BoundingBoxes>" << endl;
|
---|
677 | }
|
---|
678 |
|
---|
679 |
|
---|
680 | //-- export the view cells and the pvs
|
---|
681 |
|
---|
682 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
683 |
|
---|
684 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
685 |
|
---|
686 | mViewCellsTree->Export(stream, exportPvs);
|
---|
687 |
|
---|
688 | stream << "</ViewCells>" << endl;
|
---|
689 |
|
---|
690 |
|
---|
691 | //-- export the view space hierarchy
|
---|
692 |
|
---|
693 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
694 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
695 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
696 |
|
---|
697 | mVspBspTree->Export(stream);
|
---|
698 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
699 |
|
---|
700 | stream << "</VisibilitySolution>" << endl;
|
---|
701 |
|
---|
702 | stream.close();
|
---|
703 | cout << "finished" << endl;
|
---|
704 |
|
---|
705 | return true;
|
---|
706 | }
|
---|
707 |
|
---|
708 |
|
---|
709 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
710 | const int nViewCells)
|
---|
711 | {
|
---|
712 | std::ofstream outstream;
|
---|
713 | outstream.open(filename.c_str());
|
---|
714 |
|
---|
715 | ViewCellContainer viewCells;
|
---|
716 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
717 |
|
---|
718 | int maxPvs, maxVal, minVal;
|
---|
719 |
|
---|
720 | // sort by pvs size
|
---|
721 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
722 |
|
---|
723 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
724 | minVal = 0;
|
---|
725 |
|
---|
726 | // hack: normalize pvs size
|
---|
727 | int histoMaxVal;
|
---|
728 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
729 | maxVal = max(histoMaxVal, maxPvs);
|
---|
730 |
|
---|
731 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
732 | << " real maxpvs " << maxPvs << endl;
|
---|
733 |
|
---|
734 | int histoIntervals;
|
---|
735 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
736 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
737 |
|
---|
738 | const int range = maxVal - minVal;
|
---|
739 | int stepSize = range / intervals;
|
---|
740 |
|
---|
741 | // set step size to avoid endless loop
|
---|
742 | if (!stepSize) stepSize = 1;
|
---|
743 |
|
---|
744 | Debug << "stepsize: " << stepSize << endl;
|
---|
745 |
|
---|
746 |
|
---|
747 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
748 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
749 |
|
---|
750 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
751 |
|
---|
752 |
|
---|
753 | int i = 0;
|
---|
754 | int j = 0;
|
---|
755 |
|
---|
756 | float volSum = 0;
|
---|
757 | int smallerSum = 0;
|
---|
758 |
|
---|
759 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
760 |
|
---|
761 | for (int j = 0; j < intervals; ++ j)
|
---|
762 | {
|
---|
763 | float volDif = 0;
|
---|
764 | int smallerDif = 0;
|
---|
765 |
|
---|
766 | while ((i < (int)viewCells.size()) &&
|
---|
767 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
768 | {
|
---|
769 | volDif += viewCells[i]->GetVolume();
|
---|
770 | volSum += viewCells[i]->GetVolume();
|
---|
771 |
|
---|
772 | ++ i;
|
---|
773 | ++ smallerDif;
|
---|
774 | ++ smallerSum;
|
---|
775 | }
|
---|
776 |
|
---|
777 | if (0 && (i < (int)viewCells.size()))
|
---|
778 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i])
|
---|
779 | << " " << currentPvs << endl;
|
---|
780 |
|
---|
781 | const float volRatioDif = volDif / totalVol;
|
---|
782 | const float volRatioSum = volSum / totalVol;
|
---|
783 |
|
---|
784 | outstream << "#Pass\n" << j << endl;
|
---|
785 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
786 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
787 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
788 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
789 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
790 |
|
---|
791 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
792 |
|
---|
793 | //-- increase current pvs size to define next interval
|
---|
794 | currentPvs += stepSize;
|
---|
795 | }
|
---|
796 |
|
---|
797 | outstream.close();
|
---|
798 | }
|
---|
799 |
|
---|
800 |
|
---|
801 | bool ViewCellsManager::GetExportPvs() const
|
---|
802 | {
|
---|
803 | return mExportPvs;
|
---|
804 | }
|
---|
805 |
|
---|
806 |
|
---|
807 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
808 | const Vector3 &hitPoint,
|
---|
809 | ViewCell *vc,
|
---|
810 | const float pdf,
|
---|
811 | float &contribution) const
|
---|
812 | {
|
---|
813 | if (!obj) return false;
|
---|
814 |
|
---|
815 | // potentially visible objects
|
---|
816 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
817 | }
|
---|
818 |
|
---|
819 |
|
---|
820 | void ViewCellsManager::EvalViewCellPartition()
|
---|
821 | {
|
---|
822 | int samplesPerPass;
|
---|
823 | int numSamples;
|
---|
824 | int castSamples = 0;
|
---|
825 |
|
---|
826 | char s[64];
|
---|
827 |
|
---|
828 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
829 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
830 |
|
---|
831 | char statsPrefix[100];
|
---|
832 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
833 |
|
---|
834 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
835 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
836 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
837 |
|
---|
838 | // should directional sampling be used?
|
---|
839 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
840 |
|
---|
841 | cout << "reseting pvs ... ";
|
---|
842 |
|
---|
843 | const bool startFromZero = true;
|
---|
844 |
|
---|
845 | // reset pvs and start over from zero
|
---|
846 | if (startFromZero)
|
---|
847 | {
|
---|
848 | mViewCellsTree->ResetPvs();
|
---|
849 | }
|
---|
850 | else // start from current sampless
|
---|
851 | {
|
---|
852 | // statistics before casting more samples
|
---|
853 | cout << "compute new statistics ... ";
|
---|
854 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
855 | string fName = string(statsPrefix) + string(s);
|
---|
856 |
|
---|
857 | mViewCellsTree->ExportStats(fName);
|
---|
858 | cout << "finished" << endl;
|
---|
859 | }
|
---|
860 | cout << "finished" << endl;
|
---|
861 |
|
---|
862 | cout << "Evaluating view cell partition ... " << endl;
|
---|
863 |
|
---|
864 | while (castSamples < numSamples)
|
---|
865 | {
|
---|
866 | VssRayContainer evaluationSamples;
|
---|
867 |
|
---|
868 | const int samplingType = mEvaluationSamplingType;
|
---|
869 | /* dirSamples ?
|
---|
870 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
871 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
872 | */
|
---|
873 | long startTime = GetTime();
|
---|
874 |
|
---|
875 | //-- construction rays => we use uniform samples for this
|
---|
876 |
|
---|
877 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
878 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
879 |
|
---|
880 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
881 |
|
---|
882 | castSamples += samplesPerPass;
|
---|
883 |
|
---|
884 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
885 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
886 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
887 |
|
---|
888 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
889 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
890 |
|
---|
891 | startTime = GetTime();
|
---|
892 |
|
---|
893 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
894 |
|
---|
895 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
896 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
897 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
898 |
|
---|
899 | startTime = GetTime();
|
---|
900 |
|
---|
901 | cout << "compute new statistics ... ";
|
---|
902 | Debug << "compute new statistics ... ";
|
---|
903 |
|
---|
904 | //-- propagate pvs or pvs size information
|
---|
905 | ObjectPvs pvs;
|
---|
906 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
907 |
|
---|
908 | //-- output stats
|
---|
909 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
910 | string fileName = string(statsPrefix) + string(s);
|
---|
911 |
|
---|
912 | mViewCellsTree->ExportStats(fileName);
|
---|
913 |
|
---|
914 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
915 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
916 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
917 |
|
---|
918 | disposeRays(evaluationSamples, NULL);
|
---|
919 | }
|
---|
920 |
|
---|
921 |
|
---|
922 | //-- histogram
|
---|
923 |
|
---|
924 | bool useHisto;
|
---|
925 | int histoStepSize;
|
---|
926 |
|
---|
927 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
928 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
929 |
|
---|
930 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
931 |
|
---|
932 |
|
---|
933 | if (useHisto)
|
---|
934 | {
|
---|
935 | // evaluate view cells in a histogram
|
---|
936 | char s[64];
|
---|
937 |
|
---|
938 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
939 | {
|
---|
940 | string filename;
|
---|
941 |
|
---|
942 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
943 | #if 0
|
---|
944 | //-- evaluate histogram for render cost
|
---|
945 | sprintf(s, "-%09d-histo.log", pass);
|
---|
946 | filename = string(statsPrefix) + string(s);
|
---|
947 |
|
---|
948 | EvalViewCellHistogram(filename, pass);
|
---|
949 |
|
---|
950 | #endif
|
---|
951 | //////////////////////////////////////////
|
---|
952 | //-- evaluate histogram for pvs size
|
---|
953 |
|
---|
954 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
955 |
|
---|
956 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
957 | filename = string(statsPrefix) + string(s);
|
---|
958 |
|
---|
959 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
960 | }
|
---|
961 | }
|
---|
962 | }
|
---|
963 |
|
---|
964 |
|
---|
965 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
966 | {
|
---|
967 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
968 | }
|
---|
969 |
|
---|
970 |
|
---|
971 | /// Returns index of the best view cells of the neighborhood
|
---|
972 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
973 | {
|
---|
974 | int bestViewCellIdx = 0;
|
---|
975 |
|
---|
976 | float mergeCost = Limits::Infinity;
|
---|
977 | int i = 0;
|
---|
978 |
|
---|
979 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
980 |
|
---|
981 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
982 | {
|
---|
983 | const float mc = EvalMergeCost(root, *vit);
|
---|
984 |
|
---|
985 | if (mc < mergeCost)
|
---|
986 | {
|
---|
987 | mergeCost = mc;
|
---|
988 | bestViewCellIdx = i;
|
---|
989 | }
|
---|
990 | }
|
---|
991 |
|
---|
992 | return bestViewCellIdx;
|
---|
993 | }
|
---|
994 |
|
---|
995 |
|
---|
996 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
997 | {
|
---|
998 | mMaxFilterSize = size;
|
---|
999 | }
|
---|
1000 |
|
---|
1001 |
|
---|
1002 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
1003 | {
|
---|
1004 | switch (mRenderCostEvaluationType)
|
---|
1005 | {
|
---|
1006 | case PER_OBJECT:
|
---|
1007 | //cout << "perobject" << endl;
|
---|
1008 | return 1.0f;
|
---|
1009 |
|
---|
1010 | case PER_TRIANGLE:
|
---|
1011 | {//cout << "pertriangle" << endl;
|
---|
1012 | // HACK
|
---|
1013 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
1014 |
|
---|
1015 | // HACK: assume meshes are triangles
|
---|
1016 | if (mi->GetMesh())
|
---|
1017 | {
|
---|
1018 | return (float)mi->GetMesh()->mFaces.size();
|
---|
1019 | }
|
---|
1020 | }
|
---|
1021 | default:
|
---|
1022 | cout << "default" << endl;
|
---|
1023 | return 1.0f;
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 | // should not come here
|
---|
1027 | return 0.0f;
|
---|
1028 | }
|
---|
1029 |
|
---|
1030 |
|
---|
1031 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
1032 | const ViewCellContainer &viewCells)
|
---|
1033 | {
|
---|
1034 | ViewCell *root = currentViewCell;
|
---|
1035 | ViewCellContainer neighborhood = viewCells;
|
---|
1036 |
|
---|
1037 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
1038 |
|
---|
1039 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
1040 | //-- use priority queue to merge leaf pairs
|
---|
1041 |
|
---|
1042 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
1043 | //const float maxAvgCost = 350;
|
---|
1044 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
1045 | {
|
---|
1046 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
1047 |
|
---|
1048 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
1049 |
|
---|
1050 | // remove from vector
|
---|
1051 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
1052 | neighborhood.pop_back();
|
---|
1053 |
|
---|
1054 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
1055 | if (!bestViewCell || !root)
|
---|
1056 | cout << "warning!!" << endl;
|
---|
1057 |
|
---|
1058 | // create new root of the hierarchy
|
---|
1059 | root = MergeViewCells(root, bestViewCell);
|
---|
1060 | }
|
---|
1061 |
|
---|
1062 | return root;
|
---|
1063 | }
|
---|
1064 |
|
---|
1065 |
|
---|
1066 | struct SortableViewCellEntry {
|
---|
1067 |
|
---|
1068 | SortableViewCellEntry() {}
|
---|
1069 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
1070 |
|
---|
1071 | float mValue;
|
---|
1072 | ViewCell *mViewCell;
|
---|
1073 |
|
---|
1074 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
1075 | return a.mValue < b.mValue;
|
---|
1076 | }
|
---|
1077 | };
|
---|
1078 |
|
---|
1079 |
|
---|
1080 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
1081 | const ViewCellContainer &viewCells)
|
---|
1082 | {
|
---|
1083 |
|
---|
1084 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
1085 | int i, j;
|
---|
1086 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
1087 | if (viewCells[i] != currentViewCell)
|
---|
1088 | neighborhood[j++] = SortableViewCellEntry(
|
---|
1089 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
1090 | viewCells[i]);
|
---|
1091 | }
|
---|
1092 | neighborhood.resize(j);
|
---|
1093 |
|
---|
1094 | sort(neighborhood.begin(), neighborhood.end());
|
---|
1095 |
|
---|
1096 | ViewCell *root = currentViewCell;
|
---|
1097 |
|
---|
1098 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
1099 |
|
---|
1100 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
1101 | //-- use priority queue to merge leaf pairs
|
---|
1102 |
|
---|
1103 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
1104 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
1105 | {
|
---|
1106 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
1107 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
1108 | // create new root of the hierarchy
|
---|
1109 | root = MergeViewCells(root, bestViewCell);
|
---|
1110 | // set negative cost so that this view cell gets deleted
|
---|
1111 | root->SetMergeCost(-1.0f);
|
---|
1112 | }
|
---|
1113 |
|
---|
1114 | return root;
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 | void
|
---|
1118 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
1119 | ) const
|
---|
1120 | {
|
---|
1121 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
1122 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
1123 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
1124 |
|
---|
1125 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
1126 | DeleteLocalMergeTree(*it);
|
---|
1127 | vci->mChildren.clear();
|
---|
1128 | delete vci;
|
---|
1129 | }
|
---|
1130 | }
|
---|
1131 |
|
---|
1132 |
|
---|
1133 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
1134 | int minPvsSize,
|
---|
1135 | int maxPvsSize) const
|
---|
1136 | {
|
---|
1137 |
|
---|
1138 | if ((vc->GetPvs().CountObjectsInPvs() > maxPvsSize) ||
|
---|
1139 | (vc->GetPvs().CountObjectsInPvs() < minPvsSize))
|
---|
1140 | {
|
---|
1141 | return false;
|
---|
1142 | }
|
---|
1143 |
|
---|
1144 | return true;
|
---|
1145 | }
|
---|
1146 |
|
---|
1147 |
|
---|
1148 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
1149 | ViewCellContainer &viewCells) const
|
---|
1150 | {
|
---|
1151 | return 0;
|
---|
1152 | };
|
---|
1153 |
|
---|
1154 |
|
---|
1155 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
1156 | const float width) const
|
---|
1157 | {
|
---|
1158 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
1159 | Vector3 min = viewPoint - w * 0.5f;
|
---|
1160 | Vector3 max = viewPoint + w * 0.5f;
|
---|
1161 |
|
---|
1162 | return AxisAlignedBox3(min, max);
|
---|
1163 | }
|
---|
1164 |
|
---|
1165 |
|
---|
1166 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
1167 | PrVs &prvs,
|
---|
1168 | const float filterWidth)
|
---|
1169 | {
|
---|
1170 |
|
---|
1171 |
|
---|
1172 |
|
---|
1173 |
|
---|
1174 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
1175 |
|
---|
1176 | if (mMaxFilterSize < 1) {
|
---|
1177 | prvs.mViewCell = currentViewCell;
|
---|
1178 | return;
|
---|
1179 | }
|
---|
1180 |
|
---|
1181 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
1182 |
|
---|
1183 | if (currentViewCell) {
|
---|
1184 | ViewCellContainer viewCells;
|
---|
1185 | ComputeBoxIntersections(box, viewCells);
|
---|
1186 |
|
---|
1187 |
|
---|
1188 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
1189 | prvs.mViewCell = root;
|
---|
1190 |
|
---|
1191 | } else
|
---|
1192 | prvs.mViewCell = NULL;
|
---|
1193 | //prvs.mPvs = root->GetPvs();
|
---|
1194 | }
|
---|
1195 |
|
---|
1196 |
|
---|
1197 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
1198 | {
|
---|
1199 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
1200 | }
|
---|
1201 |
|
---|
1202 |
|
---|
1203 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
1204 | int minPvs,
|
---|
1205 | int maxPvs) const
|
---|
1206 | {
|
---|
1207 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
1208 | }
|
---|
1209 |
|
---|
1210 |
|
---|
1211 | void
|
---|
1212 | ViewCellsManager::SetValidity(
|
---|
1213 | int minPvsSize,
|
---|
1214 | int maxPvsSize) const
|
---|
1215 | {
|
---|
1216 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1217 |
|
---|
1218 |
|
---|
1219 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1220 | {
|
---|
1221 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
1222 | }
|
---|
1223 | }
|
---|
1224 |
|
---|
1225 | void
|
---|
1226 | ViewCellsManager::SetValidityPercentage(
|
---|
1227 | const float minValid,
|
---|
1228 | const float maxValid
|
---|
1229 | )
|
---|
1230 | {
|
---|
1231 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
1232 |
|
---|
1233 | int start = (int)(mViewCells.size() * minValid);
|
---|
1234 | int end = (int)(mViewCells.size() * maxValid);
|
---|
1235 |
|
---|
1236 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
1237 | {
|
---|
1238 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
1239 | }
|
---|
1240 | }
|
---|
1241 |
|
---|
1242 |
|
---|
1243 | int ViewCellsManager::CountValidViewcells() const
|
---|
1244 | {
|
---|
1245 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1246 | int valid = 0;
|
---|
1247 |
|
---|
1248 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1249 | {
|
---|
1250 | if ((*it)->GetValid())
|
---|
1251 | ++ valid;
|
---|
1252 | }
|
---|
1253 |
|
---|
1254 | return valid;
|
---|
1255 | }
|
---|
1256 |
|
---|
1257 |
|
---|
1258 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
1259 | {
|
---|
1260 | X3dParser parser;
|
---|
1261 |
|
---|
1262 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
1263 |
|
---|
1264 | bool success = parser.ParseFile(filename, *this);
|
---|
1265 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
1266 |
|
---|
1267 | return success;
|
---|
1268 | }
|
---|
1269 |
|
---|
1270 |
|
---|
1271 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
1272 | {
|
---|
1273 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
1274 | return true;
|
---|
1275 | }
|
---|
1276 |
|
---|
1277 |
|
---|
1278 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
1279 | {
|
---|
1280 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
1281 | }
|
---|
1282 |
|
---|
1283 |
|
---|
1284 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
1285 | {
|
---|
1286 | if (!ViewCellsConstructed())
|
---|
1287 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
1288 | else
|
---|
1289 | {
|
---|
1290 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
1291 | return false;
|
---|
1292 |
|
---|
1293 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
1294 |
|
---|
1295 | if (!viewcell || !viewcell->GetValid())
|
---|
1296 | return false;
|
---|
1297 | }
|
---|
1298 |
|
---|
1299 | return true;
|
---|
1300 | }
|
---|
1301 |
|
---|
1302 |
|
---|
1303 | float
|
---|
1304 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
1305 | const bool addRays,
|
---|
1306 | const bool storeViewCells
|
---|
1307 | )
|
---|
1308 | {
|
---|
1309 | // view cells not yet constructed
|
---|
1310 | if (!ViewCellsConstructed())
|
---|
1311 | return 0.0f;
|
---|
1312 |
|
---|
1313 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
1314 |
|
---|
1315 | float sum = 0.0f;
|
---|
1316 |
|
---|
1317 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
1318 | {
|
---|
1319 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
1320 | }
|
---|
1321 |
|
---|
1322 | return sum;
|
---|
1323 | }
|
---|
1324 |
|
---|
1325 |
|
---|
1326 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
1327 | {
|
---|
1328 | mCurrentViewCellsStats.Reset();
|
---|
1329 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1330 |
|
---|
1331 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1332 | {
|
---|
1333 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
1334 | }
|
---|
1335 | }
|
---|
1336 |
|
---|
1337 |
|
---|
1338 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
1339 | float &expectedRenderCost,
|
---|
1340 | float &deviation,
|
---|
1341 | float &variance,
|
---|
1342 | int &totalPvs,
|
---|
1343 | float &avgRenderCost)
|
---|
1344 | {
|
---|
1345 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1346 |
|
---|
1347 | //-- compute expected value
|
---|
1348 | totalRenderCost = 0;
|
---|
1349 | totalPvs = 0;
|
---|
1350 |
|
---|
1351 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1352 | {
|
---|
1353 | ViewCell *vc = *it;
|
---|
1354 | totalRenderCost += vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
1355 | totalPvs += (int)vc->GetPvs().CountObjectsInPvs();
|
---|
1356 | }
|
---|
1357 |
|
---|
1358 | // normalize with view space box
|
---|
1359 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
1360 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
1361 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
1362 |
|
---|
1363 |
|
---|
1364 | //-- compute standard defiation
|
---|
1365 | variance = 0;
|
---|
1366 | deviation = 0;
|
---|
1367 |
|
---|
1368 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1369 | {
|
---|
1370 | ViewCell *vc = *it;
|
---|
1371 |
|
---|
1372 | float renderCost = vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
1373 | float dev;
|
---|
1374 |
|
---|
1375 | if (1)
|
---|
1376 | dev = fabs(avgRenderCost - (float)vc->GetPvs().CountObjectsInPvs());
|
---|
1377 | else
|
---|
1378 | dev = fabs(expectedRenderCost - renderCost);
|
---|
1379 |
|
---|
1380 | deviation += dev;
|
---|
1381 | variance += dev * dev;
|
---|
1382 | }
|
---|
1383 |
|
---|
1384 | variance /= (float)mViewCells.size();
|
---|
1385 | deviation /= (float)mViewCells.size();
|
---|
1386 | }
|
---|
1387 |
|
---|
1388 |
|
---|
1389 |
|
---|
1390 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
1391 | {
|
---|
1392 | mViewCells.push_back(viewCell);
|
---|
1393 | }
|
---|
1394 |
|
---|
1395 |
|
---|
1396 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
1397 | {
|
---|
1398 | return viewCell->GetArea();
|
---|
1399 | }
|
---|
1400 |
|
---|
1401 |
|
---|
1402 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
1403 | {
|
---|
1404 | return viewCell->GetVolume();
|
---|
1405 | }
|
---|
1406 |
|
---|
1407 |
|
---|
1408 | void ViewCellsManager::DeriveViewCellsFromObjects(const ObjectContainer &objects,
|
---|
1409 | ViewCellContainer &viewCells,
|
---|
1410 | const int maxViewCells) const
|
---|
1411 | {
|
---|
1412 | // maximal max viewcells
|
---|
1413 | int limit = maxViewCells > 0 ?
|
---|
1414 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
1415 |
|
---|
1416 | for (int i = 0; i < limit; ++ i)
|
---|
1417 | {
|
---|
1418 | Intersectable *object = objects[i];
|
---|
1419 |
|
---|
1420 | // extract the mesh instances
|
---|
1421 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
1422 | {
|
---|
1423 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
1424 |
|
---|
1425 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
1426 | viewCells.push_back(viewCell);
|
---|
1427 | }
|
---|
1428 | else if (object->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
1429 | {
|
---|
1430 | TransformedMeshInstance *mi = dynamic_cast<TransformedMeshInstance *>(object);
|
---|
1431 |
|
---|
1432 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
1433 |
|
---|
1434 | // transform mesh
|
---|
1435 | mi->GetTransformedMesh(*mesh);
|
---|
1436 |
|
---|
1437 | // create bb + kd tree
|
---|
1438 | mesh->Preprocess();
|
---|
1439 |
|
---|
1440 | ViewCell *viewCell = GenerateViewCell(mi->GetMesh());
|
---|
1441 | viewCells.push_back(viewCell);
|
---|
1442 |
|
---|
1443 | break;
|
---|
1444 | }
|
---|
1445 | }
|
---|
1446 | }
|
---|
1447 |
|
---|
1448 |
|
---|
1449 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
1450 | const float height) const
|
---|
1451 | {
|
---|
1452 | // one mesh per view cell
|
---|
1453 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
1454 |
|
---|
1455 | //-- construct prism
|
---|
1456 |
|
---|
1457 | // bottom
|
---|
1458 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
1459 | // top
|
---|
1460 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
1461 | // sides
|
---|
1462 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
1463 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
1464 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
1465 |
|
---|
1466 | //--- extrude new vertices for top of prism
|
---|
1467 | Vector3 triNorm = baseTri.GetNormal();
|
---|
1468 |
|
---|
1469 | Triangle3 topTri;
|
---|
1470 |
|
---|
1471 | // add base vertices and calculate top vertices
|
---|
1472 | for (int i = 0; i < 3; ++ i)
|
---|
1473 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
1474 |
|
---|
1475 | // add top vertices
|
---|
1476 | for (int i = 0; i < 3; ++ i)
|
---|
1477 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
1478 |
|
---|
1479 | mesh->Preprocess();
|
---|
1480 |
|
---|
1481 | return GenerateViewCell(mesh);
|
---|
1482 | }
|
---|
1483 |
|
---|
1484 |
|
---|
1485 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
1486 | {
|
---|
1487 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1488 |
|
---|
1489 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
1490 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1491 | {
|
---|
1492 | Finalize(*it, createMesh);
|
---|
1493 | }
|
---|
1494 |
|
---|
1495 | mTotalAreaValid = false;
|
---|
1496 | }
|
---|
1497 |
|
---|
1498 |
|
---|
1499 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
1500 | {
|
---|
1501 | // implemented in subclasses
|
---|
1502 | }
|
---|
1503 |
|
---|
1504 |
|
---|
1505 | /** fast way of merging 2 view cells.
|
---|
1506 | */
|
---|
1507 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
1508 | {
|
---|
1509 | // generate parent view cell
|
---|
1510 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
1511 |
|
---|
1512 | vc->GetPvs().Clear();
|
---|
1513 | vc->GetPvs() = left->GetPvs();
|
---|
1514 |
|
---|
1515 | // merge pvs of right cell
|
---|
1516 | vc->GetPvs().Merge(right->GetPvs());
|
---|
1517 |
|
---|
1518 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
1519 | vc->mChildren.push_back(left);
|
---|
1520 | vc->mChildren.push_back(right);
|
---|
1521 |
|
---|
1522 | // update pvs size
|
---|
1523 | UpdateScalarPvsSize(vc, vc->GetPvs().CountObjectsInPvs(), vc->GetPvs().GetSize());
|
---|
1524 |
|
---|
1525 | return vc;
|
---|
1526 | }
|
---|
1527 |
|
---|
1528 |
|
---|
1529 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
1530 | {
|
---|
1531 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
1532 |
|
---|
1533 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
1534 |
|
---|
1535 | for (it = children.begin(); it != it_end; ++ it)
|
---|
1536 | {
|
---|
1537 | // merge pvs
|
---|
1538 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
1539 | vc->mChildren.push_back(*it);
|
---|
1540 | }
|
---|
1541 |
|
---|
1542 | return vc;
|
---|
1543 | }
|
---|
1544 |
|
---|
1545 |
|
---|
1546 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
1547 | {
|
---|
1548 | mRenderer = renderer;
|
---|
1549 | }
|
---|
1550 |
|
---|
1551 |
|
---|
1552 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
1553 | {
|
---|
1554 | return mViewCellsTree;
|
---|
1555 | }
|
---|
1556 |
|
---|
1557 |
|
---|
1558 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
1559 | {
|
---|
1560 | mVisualizationSamples = visSamples;
|
---|
1561 | }
|
---|
1562 |
|
---|
1563 |
|
---|
1564 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
1565 | {
|
---|
1566 | mConstructionSamples = constructionSamples;
|
---|
1567 | }
|
---|
1568 |
|
---|
1569 |
|
---|
1570 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
1571 | {
|
---|
1572 | mInitialSamples = initialSamples;
|
---|
1573 | }
|
---|
1574 |
|
---|
1575 |
|
---|
1576 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
1577 | {
|
---|
1578 | mPostProcessSamples = postProcessSamples;
|
---|
1579 | }
|
---|
1580 |
|
---|
1581 |
|
---|
1582 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
1583 | {
|
---|
1584 | return mVisualizationSamples;
|
---|
1585 | }
|
---|
1586 |
|
---|
1587 |
|
---|
1588 | int ViewCellsManager::GetConstructionSamples() const
|
---|
1589 | {
|
---|
1590 | return mConstructionSamples;
|
---|
1591 | }
|
---|
1592 |
|
---|
1593 |
|
---|
1594 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
1595 | {
|
---|
1596 | return mPostProcessSamples;
|
---|
1597 | }
|
---|
1598 |
|
---|
1599 |
|
---|
1600 | void ViewCellsManager::UpdatePvs()
|
---|
1601 | {
|
---|
1602 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
1603 | return;
|
---|
1604 |
|
---|
1605 | mViewCellPvsIsUpdated = true;
|
---|
1606 |
|
---|
1607 | ViewCellContainer leaves;
|
---|
1608 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
1609 |
|
---|
1610 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
1611 |
|
---|
1612 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
1613 | {
|
---|
1614 | mViewCellsTree->PropagatePvs(*it);
|
---|
1615 | }
|
---|
1616 | }
|
---|
1617 |
|
---|
1618 |
|
---|
1619 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
1620 | {
|
---|
1621 | // update pvs of view cells tree if necessary
|
---|
1622 | UpdatePvs();
|
---|
1623 |
|
---|
1624 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
1625 |
|
---|
1626 | stat.viewcells = 0;
|
---|
1627 | stat.minPvs = 100000000;
|
---|
1628 | stat.maxPvs = 0;
|
---|
1629 | stat.avgPvs = 0.0f;
|
---|
1630 |
|
---|
1631 | for (; it != mViewCells.end(); ++ it)
|
---|
1632 | {
|
---|
1633 | ViewCell *viewcell = *it;
|
---|
1634 |
|
---|
1635 | // bool mCountKdPvs = false;
|
---|
1636 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
1637 |
|
---|
1638 |
|
---|
1639 | if (pvsSize < stat.minPvs)
|
---|
1640 | stat.minPvs = pvsSize;
|
---|
1641 | if (pvsSize > stat.maxPvs)
|
---|
1642 | stat.maxPvs = pvsSize;
|
---|
1643 |
|
---|
1644 | stat.avgPvs += pvsSize;
|
---|
1645 |
|
---|
1646 | ++ stat.viewcells;
|
---|
1647 | }
|
---|
1648 |
|
---|
1649 | if (stat.viewcells)
|
---|
1650 | stat.avgPvs/=stat.viewcells;
|
---|
1651 | }
|
---|
1652 |
|
---|
1653 |
|
---|
1654 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
1655 | {
|
---|
1656 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
1657 | PvsStatistics pvsStat;
|
---|
1658 | GetPvsStatistics(pvsStat);
|
---|
1659 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
1660 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
1661 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
1662 | }
|
---|
1663 |
|
---|
1664 |
|
---|
1665 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
1666 | {
|
---|
1667 | return 0;
|
---|
1668 | }
|
---|
1669 |
|
---|
1670 |
|
---|
1671 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
1672 | {
|
---|
1673 | return mViewCells;
|
---|
1674 | }
|
---|
1675 |
|
---|
1676 |
|
---|
1677 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
1678 | {
|
---|
1679 | mViewSpaceBox = box;
|
---|
1680 |
|
---|
1681 | // hack: create clip plane relative to new view space box
|
---|
1682 | CreateClipPlane();
|
---|
1683 | // the total area of the view space has changed
|
---|
1684 | mTotalAreaValid = false;
|
---|
1685 | }
|
---|
1686 |
|
---|
1687 |
|
---|
1688 | void ViewCellsManager::CreateClipPlane()
|
---|
1689 | {
|
---|
1690 | int axis = 0;
|
---|
1691 | float pos;
|
---|
1692 |
|
---|
1693 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
1694 |
|
---|
1695 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
1696 |
|
---|
1697 | if (mUseClipPlaneForViz)
|
---|
1698 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
1699 |
|
---|
1700 | mClipPlane = AxisAlignedPlane(axis, point[axis]);
|
---|
1701 | }
|
---|
1702 |
|
---|
1703 |
|
---|
1704 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
1705 | {
|
---|
1706 | return mViewSpaceBox;
|
---|
1707 | }
|
---|
1708 |
|
---|
1709 |
|
---|
1710 | void ViewCellsManager::ResetViewCells()
|
---|
1711 | {
|
---|
1712 | // recollect view cells
|
---|
1713 | mViewCells.clear();
|
---|
1714 | CollectViewCells();
|
---|
1715 |
|
---|
1716 |
|
---|
1717 | // stats are computed once more
|
---|
1718 | mCurrentViewCellsStats.Reset();
|
---|
1719 | EvaluateViewCellsStats();
|
---|
1720 |
|
---|
1721 | // has to be recomputed
|
---|
1722 | mTotalAreaValid = false;
|
---|
1723 | }
|
---|
1724 |
|
---|
1725 |
|
---|
1726 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
1727 | {
|
---|
1728 | return mMaxPvsSize;
|
---|
1729 | }
|
---|
1730 |
|
---|
1731 |
|
---|
1732 | void
|
---|
1733 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
1734 | {
|
---|
1735 | if (!ViewCellsConstructed())
|
---|
1736 | return;
|
---|
1737 |
|
---|
1738 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
1739 |
|
---|
1740 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
1741 | AddSampleContributions(*(*it));
|
---|
1742 | }
|
---|
1743 | }
|
---|
1744 |
|
---|
1745 |
|
---|
1746 | int ViewCellsManager::GetMinPvsSize() const
|
---|
1747 | {
|
---|
1748 | return mMinPvsSize;
|
---|
1749 | }
|
---|
1750 |
|
---|
1751 |
|
---|
1752 |
|
---|
1753 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
1754 | {
|
---|
1755 | return mMaxPvsRatio;
|
---|
1756 | }
|
---|
1757 |
|
---|
1758 |
|
---|
1759 | void
|
---|
1760 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
1761 | {
|
---|
1762 | // assumes viewcells have been stored...
|
---|
1763 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
1764 | ViewCellContainer::const_iterator it;
|
---|
1765 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
1766 | ViewCell *viewcell = *it;
|
---|
1767 | if (viewcell->GetValid()) {
|
---|
1768 | // if ray not outside of view space
|
---|
1769 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
1770 | }
|
---|
1771 | }
|
---|
1772 | }
|
---|
1773 |
|
---|
1774 |
|
---|
1775 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
1776 | const bool addRays,
|
---|
1777 | const bool storeViewCells)
|
---|
1778 | {
|
---|
1779 | ViewCellContainer viewcells;
|
---|
1780 |
|
---|
1781 | ray.mPvsContribution = 0;
|
---|
1782 | ray.mRelativePvsContribution = 0.0f;
|
---|
1783 |
|
---|
1784 | static Ray hray;
|
---|
1785 | hray.Init(ray);
|
---|
1786 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
1787 | //Ray hray(ray);
|
---|
1788 |
|
---|
1789 | float tmin = 0, tmax = 1.0;
|
---|
1790 |
|
---|
1791 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
1792 | return 0;
|
---|
1793 |
|
---|
1794 | Vector3 origin = hray.Extrap(tmin);
|
---|
1795 | Vector3 termination = hray.Extrap(tmax);
|
---|
1796 |
|
---|
1797 | ViewCell::NewMail();
|
---|
1798 |
|
---|
1799 | // traverse the view space subdivision
|
---|
1800 | CastLineSegment(origin, termination, viewcells);
|
---|
1801 |
|
---|
1802 | if (storeViewCells)
|
---|
1803 | { // copy viewcells memory efficiently
|
---|
1804 | ray.mViewCells.reserve(viewcells.size());
|
---|
1805 | ray.mViewCells = viewcells;
|
---|
1806 | }
|
---|
1807 |
|
---|
1808 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
1809 |
|
---|
1810 | for (; it != viewcells.end(); ++ it)
|
---|
1811 | {
|
---|
1812 | ViewCell *viewcell = *it;
|
---|
1813 |
|
---|
1814 | if (viewcell->GetValid())
|
---|
1815 | {
|
---|
1816 | // if ray not outside of view space
|
---|
1817 | float contribution;
|
---|
1818 |
|
---|
1819 | if (ray.mTerminationObject)
|
---|
1820 | {
|
---|
1821 | cout << "f";
|
---|
1822 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
1823 | ray.mPdf,
|
---|
1824 | contribution))
|
---|
1825 | {
|
---|
1826 | ++ ray.mPvsContribution;
|
---|
1827 | ray.mRelativePvsContribution += contribution;
|
---|
1828 | }
|
---|
1829 | }
|
---|
1830 |
|
---|
1831 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
1832 |
|
---|
1833 | // for directional sampling it is important to count only contributions
|
---|
1834 | // made in one direction!!!
|
---|
1835 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
1836 |
|
---|
1837 | if (ray.mOriginObject &&
|
---|
1838 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
1839 | ray.mPdf,
|
---|
1840 | contribution))
|
---|
1841 | {
|
---|
1842 | ++ ray.mPvsContribution;
|
---|
1843 | ray.mRelativePvsContribution += contribution;
|
---|
1844 | }
|
---|
1845 | #endif
|
---|
1846 | }
|
---|
1847 | }
|
---|
1848 |
|
---|
1849 | // if addrays is true, sampled entities are stored in the pvs
|
---|
1850 | if (addRays)
|
---|
1851 | {
|
---|
1852 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
1853 | {
|
---|
1854 | ViewCell *viewcell = *it;
|
---|
1855 |
|
---|
1856 | if (viewcell->GetValid())
|
---|
1857 | {
|
---|
1858 | // if ray not outside of view space
|
---|
1859 |
|
---|
1860 | // add new object to the pvs
|
---|
1861 | if (ray.mTerminationObject)
|
---|
1862 | {
|
---|
1863 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
1864 | }
|
---|
1865 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
1866 | if (ray.mOriginObject)
|
---|
1867 | {
|
---|
1868 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
1869 | }
|
---|
1870 | #endif
|
---|
1871 | }
|
---|
1872 | }
|
---|
1873 | }
|
---|
1874 |
|
---|
1875 | return ray.mRelativePvsContribution;
|
---|
1876 | }
|
---|
1877 |
|
---|
1878 |
|
---|
1879 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
1880 | const int maxSize,
|
---|
1881 | VssRayContainer &usedRays,
|
---|
1882 | VssRayContainer *savedRays) const
|
---|
1883 | {
|
---|
1884 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
1885 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
1886 |
|
---|
1887 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
1888 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
1889 | {
|
---|
1890 | if (Random(1.0f) < prop)
|
---|
1891 | usedRays.push_back(*it);
|
---|
1892 | else if (savedRays)
|
---|
1893 | savedRays->push_back(*it);
|
---|
1894 | }
|
---|
1895 | }
|
---|
1896 |
|
---|
1897 |
|
---|
1898 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
1899 | {
|
---|
1900 | return (float)mViewCellsTree->GetPvsSize(viewCell);
|
---|
1901 | }
|
---|
1902 |
|
---|
1903 |
|
---|
1904 | float ViewCellsManager::GetAccVcArea()
|
---|
1905 | {
|
---|
1906 | // if already computed
|
---|
1907 | if (mTotalAreaValid)
|
---|
1908 | {
|
---|
1909 | return mTotalArea;
|
---|
1910 | }
|
---|
1911 |
|
---|
1912 | mTotalArea = 0;
|
---|
1913 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1914 |
|
---|
1915 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1916 | {
|
---|
1917 | //Debug << "area: " << GetArea(*it);
|
---|
1918 | mTotalArea += GetArea(*it);
|
---|
1919 | }
|
---|
1920 |
|
---|
1921 | mTotalAreaValid = true;
|
---|
1922 |
|
---|
1923 | return mTotalArea;
|
---|
1924 | }
|
---|
1925 |
|
---|
1926 |
|
---|
1927 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
1928 | {
|
---|
1929 | s << mCurrentViewCellsStats << endl;
|
---|
1930 | }
|
---|
1931 |
|
---|
1932 |
|
---|
1933 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
1934 | {
|
---|
1935 | if (ViewCellsTreeConstructed())
|
---|
1936 | {
|
---|
1937 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
1938 | }
|
---|
1939 | else // no view cells tree, handle view cells "myself"
|
---|
1940 | {
|
---|
1941 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
1942 | {
|
---|
1943 | mViewCells[i]->SetId(i);
|
---|
1944 | }
|
---|
1945 | }
|
---|
1946 | }
|
---|
1947 |
|
---|
1948 | // matt: todo
|
---|
1949 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
1950 | {
|
---|
1951 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1952 |
|
---|
1953 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1954 | {
|
---|
1955 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
1956 | {
|
---|
1957 | ExportColor(exporter, *it);
|
---|
1958 |
|
---|
1959 | ExportViewCellGeometry(exporter, *it,
|
---|
1960 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
1961 | }
|
---|
1962 | }
|
---|
1963 | }
|
---|
1964 |
|
---|
1965 |
|
---|
1966 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
1967 | {
|
---|
1968 | // convert to meshes
|
---|
1969 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1970 |
|
---|
1971 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1972 | {
|
---|
1973 | if (!(*it)->GetMesh())
|
---|
1974 | {
|
---|
1975 | CreateMesh(*it);
|
---|
1976 | }
|
---|
1977 | }
|
---|
1978 | }
|
---|
1979 |
|
---|
1980 |
|
---|
1981 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
1982 | const bool exportPvs,
|
---|
1983 | const ObjectContainer &objects)
|
---|
1984 | {
|
---|
1985 | return false;
|
---|
1986 | }
|
---|
1987 |
|
---|
1988 |
|
---|
1989 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
1990 | {
|
---|
1991 | mNumActiveViewCells = n;
|
---|
1992 | mViewCells.clear();
|
---|
1993 | CollectViewCells();
|
---|
1994 | }
|
---|
1995 |
|
---|
1996 |
|
---|
1997 | void ViewCellsManager::SetViewCellsActive()
|
---|
1998 | {
|
---|
1999 | // collect leaf view cells and set the pointers to the currently
|
---|
2000 | // active view cells
|
---|
2001 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
2002 |
|
---|
2003 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2004 | {
|
---|
2005 | ViewCellContainer leaves;
|
---|
2006 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
2007 |
|
---|
2008 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
2009 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
2010 | {
|
---|
2011 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
2012 | }
|
---|
2013 | }
|
---|
2014 | }
|
---|
2015 |
|
---|
2016 |
|
---|
2017 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
2018 | {
|
---|
2019 | return mMaxFilterSize;
|
---|
2020 | }
|
---|
2021 |
|
---|
2022 |
|
---|
2023 | static const bool USE_ASCII = true;
|
---|
2024 |
|
---|
2025 |
|
---|
2026 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
2027 | const ObjectContainer &objects) const
|
---|
2028 | {
|
---|
2029 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
2030 |
|
---|
2031 | if (USE_ASCII)
|
---|
2032 | {
|
---|
2033 | ofstream boxesOut(filename.c_str());
|
---|
2034 | if (!boxesOut.is_open())
|
---|
2035 | return false;
|
---|
2036 |
|
---|
2037 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
2038 | {
|
---|
2039 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
2040 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
2041 |
|
---|
2042 | boxesOut << mi->GetId() << " "
|
---|
2043 | << box.Min().x << " "
|
---|
2044 | << box.Min().y << " "
|
---|
2045 | << box.Min().z << " "
|
---|
2046 | << box.Max().x << " "
|
---|
2047 | << box.Max().y << " "
|
---|
2048 | << box.Max().z << endl;
|
---|
2049 | }
|
---|
2050 |
|
---|
2051 | boxesOut.close();
|
---|
2052 | }
|
---|
2053 | else
|
---|
2054 | {
|
---|
2055 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
2056 |
|
---|
2057 | if (!boxesOut.is_open())
|
---|
2058 | return false;
|
---|
2059 |
|
---|
2060 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
2061 | {
|
---|
2062 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
2063 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
2064 | Vector3 bmin = box.Min();
|
---|
2065 | Vector3 bmax = box.Max();
|
---|
2066 | int id = mi->GetId();
|
---|
2067 |
|
---|
2068 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
2069 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
2070 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
2071 | }
|
---|
2072 |
|
---|
2073 | boxesOut.close();
|
---|
2074 | }
|
---|
2075 |
|
---|
2076 | return true;
|
---|
2077 | }
|
---|
2078 |
|
---|
2079 |
|
---|
2080 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
2081 | IndexedBoundingBoxContainer &boxes) const
|
---|
2082 | {
|
---|
2083 | Vector3 bmin, bmax;
|
---|
2084 | int id;
|
---|
2085 |
|
---|
2086 | if (USE_ASCII)
|
---|
2087 | {
|
---|
2088 | ifstream boxesIn(filename.c_str());
|
---|
2089 |
|
---|
2090 | if (!boxesIn.is_open())
|
---|
2091 | {
|
---|
2092 | cout << "failed to open file " << filename << endl;
|
---|
2093 | return false;
|
---|
2094 | }
|
---|
2095 |
|
---|
2096 | string buf;
|
---|
2097 | while (!(getline(boxesIn, buf)).eof())
|
---|
2098 | {
|
---|
2099 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
2100 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
2101 | &bmax.x, &bmax.y, &bmax.z);
|
---|
2102 |
|
---|
2103 | AxisAlignedBox3 box(bmin, bmax);
|
---|
2104 | // MeshInstance *mi = new MeshInstance();
|
---|
2105 | // HACK: set bounding box to new box
|
---|
2106 | //mi->mBox = box;
|
---|
2107 |
|
---|
2108 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
2109 | }
|
---|
2110 |
|
---|
2111 | boxesIn.close();
|
---|
2112 | }
|
---|
2113 | else
|
---|
2114 | {
|
---|
2115 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
2116 |
|
---|
2117 | if (!boxesIn.is_open())
|
---|
2118 | return false;
|
---|
2119 |
|
---|
2120 | while (1)
|
---|
2121 | {
|
---|
2122 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
2123 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
2124 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
2125 |
|
---|
2126 | if (boxesIn.eof())
|
---|
2127 | break;
|
---|
2128 |
|
---|
2129 |
|
---|
2130 | AxisAlignedBox3 box(bmin, bmax);
|
---|
2131 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
2132 |
|
---|
2133 | // HACK: set bounding box to new box
|
---|
2134 | //mi->mBox = box;
|
---|
2135 | //boxes.push_back(mi);
|
---|
2136 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
2137 | }
|
---|
2138 |
|
---|
2139 | boxesIn.close();
|
---|
2140 | }
|
---|
2141 |
|
---|
2142 | return true;
|
---|
2143 | }
|
---|
2144 |
|
---|
2145 |
|
---|
2146 | float ViewCellsManager::GetFilterWidth()
|
---|
2147 | {
|
---|
2148 | return mFilterWidth;
|
---|
2149 | }
|
---|
2150 |
|
---|
2151 |
|
---|
2152 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
2153 | {
|
---|
2154 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
2155 | }
|
---|
2156 |
|
---|
2157 |
|
---|
2158 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
2159 | const int pvsSize,
|
---|
2160 | const int entriesInPvs) const
|
---|
2161 | {
|
---|
2162 | vc->mPvsSize = pvsSize;
|
---|
2163 | vc->mEntriesInPvs = entriesInPvs;
|
---|
2164 |
|
---|
2165 | vc->mPvsSizeValid = true;
|
---|
2166 | }
|
---|
2167 |
|
---|
2168 |
|
---|
2169 | void
|
---|
2170 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
2171 | KdTree *kdTree,
|
---|
2172 | const float viewSpaceFilterSize,
|
---|
2173 | const float spatialFilterSize,
|
---|
2174 | ObjectPvs &pvs
|
---|
2175 | )
|
---|
2176 | {
|
---|
2177 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
2178 | // and apply spatial filter by including all neighbors of the objects
|
---|
2179 | // in the pvs
|
---|
2180 |
|
---|
2181 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
2182 | // and compute the pvs union
|
---|
2183 |
|
---|
2184 | //Vector3 center = viewCell->GetBox().Center();
|
---|
2185 | // Vector3 center = m->mBox.Center();
|
---|
2186 |
|
---|
2187 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
2188 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
2189 | if (!ViewCellsConstructed())
|
---|
2190 | return;
|
---|
2191 |
|
---|
2192 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
2193 |
|
---|
2194 | bool usePrVS = false;
|
---|
2195 |
|
---|
2196 | if (!usePrVS) {
|
---|
2197 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
2198 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
2199 |
|
---|
2200 | ViewCellContainer viewCells;
|
---|
2201 | ComputeBoxIntersections(box, viewCells);
|
---|
2202 |
|
---|
2203 | // cout<<"box="<<box<<endl;
|
---|
2204 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
2205 |
|
---|
2206 | int i;
|
---|
2207 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
2208 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
2209 | pvs.Merge((*it)->GetPvs());
|
---|
2210 | }
|
---|
2211 | } else {
|
---|
2212 | PrVs prvs;
|
---|
2213 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
2214 |
|
---|
2215 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
2216 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
2217 | pvs = prvs.mViewCell->GetPvs();
|
---|
2218 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
2219 | }
|
---|
2220 | } else
|
---|
2221 | pvs = viewCell->GetPvs();
|
---|
2222 |
|
---|
2223 | if (spatialFilterSize >=0.0f)
|
---|
2224 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
2225 |
|
---|
2226 | }
|
---|
2227 |
|
---|
2228 |
|
---|
2229 |
|
---|
2230 | void
|
---|
2231 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
2232 | const float relViewSpaceFilterSize,
|
---|
2233 | const float relSpatialFilterSize
|
---|
2234 | )
|
---|
2235 | {
|
---|
2236 |
|
---|
2237 | if (!ViewCellsConstructed())
|
---|
2238 | return;
|
---|
2239 |
|
---|
2240 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
2241 |
|
---|
2242 | ObjectPvs *newPvs;
|
---|
2243 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
2244 |
|
---|
2245 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
2246 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
2247 |
|
---|
2248 | int i;
|
---|
2249 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
2250 | ApplyFilter(*it,
|
---|
2251 | kdTree,
|
---|
2252 | viewSpaceFilterSize,
|
---|
2253 | spatialFilterSize,
|
---|
2254 | newPvs[i]
|
---|
2255 | );
|
---|
2256 | }
|
---|
2257 |
|
---|
2258 | // now replace all pvss
|
---|
2259 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
2260 |
|
---|
2261 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
2262 | pvs.Clear();
|
---|
2263 | pvs = newPvs[i];
|
---|
2264 | newPvs[i].Clear();
|
---|
2265 | }
|
---|
2266 |
|
---|
2267 | delete [] newPvs;
|
---|
2268 | }
|
---|
2269 |
|
---|
2270 |
|
---|
2271 |
|
---|
2272 |
|
---|
2273 | void
|
---|
2274 | ViewCellsManager::ApplySpatialFilter(
|
---|
2275 | KdTree *kdTree,
|
---|
2276 | const float spatialFilterSize,
|
---|
2277 | ObjectPvs &pvs
|
---|
2278 | )
|
---|
2279 | {
|
---|
2280 | // now compute a new Pvs by including also objects intersecting the
|
---|
2281 | // extended boxes of visible objects
|
---|
2282 |
|
---|
2283 | Intersectable::NewMail();
|
---|
2284 |
|
---|
2285 | ObjectPvsMap::const_iterator oi;
|
---|
2286 |
|
---|
2287 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi)
|
---|
2288 | {
|
---|
2289 | Intersectable *object = (*oi).first;
|
---|
2290 | object->Mail();
|
---|
2291 | }
|
---|
2292 |
|
---|
2293 | ObjectPvs nPvs;
|
---|
2294 | int nPvsSize = 0;
|
---|
2295 | // now go through the pvs again
|
---|
2296 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
2297 | Intersectable *object = (*oi).first;
|
---|
2298 |
|
---|
2299 | // Vector3 center = object->GetBox().Center();
|
---|
2300 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
2301 | // center + Vector3(spatialFilterSize/2));
|
---|
2302 |
|
---|
2303 | AxisAlignedBox3 box = object->GetBox();
|
---|
2304 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
2305 |
|
---|
2306 | ObjectContainer objects;
|
---|
2307 |
|
---|
2308 | // $$ warning collect objects takes only unmailed ones!
|
---|
2309 | kdTree->CollectObjects(box,
|
---|
2310 | objects);
|
---|
2311 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
2312 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
2313 | for (; noi != objects.end(); ++noi) {
|
---|
2314 | Intersectable *o = *noi;
|
---|
2315 | // $$ JB warning: pdfs are not correct at this point!
|
---|
2316 | nPvs.AddSample(o, Limits::Small);
|
---|
2317 | nPvsSize++;
|
---|
2318 | }
|
---|
2319 | }
|
---|
2320 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
2321 | pvs.Merge(nPvs);
|
---|
2322 | }
|
---|
2323 |
|
---|
2324 |
|
---|
2325 | void ViewCellsManager::ExportColor(Exporter *exporter, ViewCell *vc) const
|
---|
2326 | {
|
---|
2327 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
2328 |
|
---|
2329 | float importance = 0;
|
---|
2330 | static Material m;
|
---|
2331 |
|
---|
2332 | switch (mColorCode)
|
---|
2333 | {
|
---|
2334 | case 0: // Random
|
---|
2335 | {
|
---|
2336 | if (vcValid)
|
---|
2337 | {
|
---|
2338 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
2339 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
2340 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
2341 | }
|
---|
2342 | else
|
---|
2343 | {
|
---|
2344 | m.mDiffuseColor.r = 0.0f;
|
---|
2345 | m.mDiffuseColor.g = 1.0f;
|
---|
2346 | m.mDiffuseColor.b = 0.0f;
|
---|
2347 | }
|
---|
2348 |
|
---|
2349 | exporter->SetForcedMaterial(m);
|
---|
2350 | return;
|
---|
2351 | }
|
---|
2352 |
|
---|
2353 | case 1: // pvs
|
---|
2354 | {
|
---|
2355 | if (mCurrentViewCellsStats.maxPvs)
|
---|
2356 | {
|
---|
2357 | importance =
|
---|
2358 | (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
2359 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
2360 | }
|
---|
2361 | }
|
---|
2362 | break;
|
---|
2363 | case 2: // merges
|
---|
2364 | {
|
---|
2365 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
2366 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
2367 | }
|
---|
2368 | break;
|
---|
2369 | #if 0
|
---|
2370 | case 3: // merge tree differene
|
---|
2371 | {
|
---|
2372 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
2373 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
2374 |
|
---|
2375 | }
|
---|
2376 | break;
|
---|
2377 | #endif
|
---|
2378 | default:
|
---|
2379 | break;
|
---|
2380 | }
|
---|
2381 |
|
---|
2382 | // special color code for invalid view cells
|
---|
2383 | m.mDiffuseColor.r = importance;
|
---|
2384 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
2385 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
2386 |
|
---|
2387 | //Debug << "importance: " << importance << endl;
|
---|
2388 | exporter->SetForcedMaterial(m);
|
---|
2389 | }
|
---|
2390 |
|
---|
2391 |
|
---|
2392 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
2393 | vector<MergeCandidate> &candidates)
|
---|
2394 | {
|
---|
2395 | // implemented in subclasses
|
---|
2396 | }
|
---|
2397 |
|
---|
2398 |
|
---|
2399 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
2400 | {
|
---|
2401 | // terminate traversal
|
---|
2402 | if (root->IsLeaf())
|
---|
2403 | {
|
---|
2404 | // we assume that pvs is explicitly stored in leaves
|
---|
2405 | pvs = root->GetPvs();
|
---|
2406 | UpdateScalarPvsSize(root, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
2407 |
|
---|
2408 | return;
|
---|
2409 | }
|
---|
2410 |
|
---|
2411 | //-- interior node => propagate pvs up
|
---|
2412 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
2413 | interior->GetPvs().Clear();
|
---|
2414 | pvs.Clear();
|
---|
2415 | vector<ObjectPvs> pvsList;
|
---|
2416 |
|
---|
2417 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
2418 |
|
---|
2419 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
2420 | {
|
---|
2421 | ObjectPvs objPvs;
|
---|
2422 |
|
---|
2423 | //-- recursivly compute child pvss
|
---|
2424 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
2425 |
|
---|
2426 | // store pvs in vector
|
---|
2427 | pvsList.push_back(objPvs);
|
---|
2428 | }
|
---|
2429 |
|
---|
2430 | #if 1
|
---|
2431 | Intersectable::NewMail();
|
---|
2432 |
|
---|
2433 | //-- faster way of computing pvs:
|
---|
2434 | // construct merged pvs by adding
|
---|
2435 | // and only those of the next pvs which were not mailed.
|
---|
2436 | // note: sumpdf is not correct!!
|
---|
2437 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
2438 |
|
---|
2439 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
2440 | {
|
---|
2441 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
2442 |
|
---|
2443 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
2444 | {
|
---|
2445 | Intersectable *intersect = (*pit).first;
|
---|
2446 |
|
---|
2447 | if (!intersect->Mailed())
|
---|
2448 | {
|
---|
2449 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
2450 | intersect->Mail();
|
---|
2451 | }
|
---|
2452 | }
|
---|
2453 | }
|
---|
2454 |
|
---|
2455 | // store pvs in this node
|
---|
2456 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
2457 | {
|
---|
2458 | interior->SetPvs(pvs);
|
---|
2459 | }
|
---|
2460 |
|
---|
2461 | // set new pvs size
|
---|
2462 | UpdateScalarPvsSize(interior, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
2463 |
|
---|
2464 |
|
---|
2465 | #else // really merge cells: slow put sumPdf is correct
|
---|
2466 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
2467 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
2468 | #endif
|
---|
2469 | }
|
---|
2470 |
|
---|
2471 |
|
---|
2472 |
|
---|
2473 | /*******************************************************************/
|
---|
2474 | /* BspViewCellsManager implementation */
|
---|
2475 | /*******************************************************************/
|
---|
2476 |
|
---|
2477 |
|
---|
2478 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
2479 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
2480 | {
|
---|
2481 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
2482 | mBspTree->SetViewCellsManager(this);
|
---|
2483 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
2484 | }
|
---|
2485 |
|
---|
2486 |
|
---|
2487 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
2488 | {
|
---|
2489 | return mBspTree->GetRoot() != NULL;
|
---|
2490 | }
|
---|
2491 |
|
---|
2492 |
|
---|
2493 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
2494 | {
|
---|
2495 | return new BspViewCell(mesh);
|
---|
2496 | }
|
---|
2497 |
|
---|
2498 |
|
---|
2499 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
2500 | const VssRayContainer &rays)
|
---|
2501 | {
|
---|
2502 | // if view cells were already constructed
|
---|
2503 | if (ViewCellsConstructed())
|
---|
2504 | return 0;
|
---|
2505 |
|
---|
2506 | int sampleContributions = 0;
|
---|
2507 |
|
---|
2508 | // construct view cells using the collected samples
|
---|
2509 | RayContainer constructionRays;
|
---|
2510 | VssRayContainer savedRays;
|
---|
2511 |
|
---|
2512 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
2513 |
|
---|
2514 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
2515 |
|
---|
2516 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
2517 |
|
---|
2518 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
2519 | {
|
---|
2520 | if (Random(1.0f) < prop)
|
---|
2521 | constructionRays.push_back(new Ray(*(*it)));
|
---|
2522 | else
|
---|
2523 | savedRays.push_back(*it);
|
---|
2524 | }
|
---|
2525 |
|
---|
2526 | if (mViewCells.empty())
|
---|
2527 | {
|
---|
2528 | // no view cells loaded
|
---|
2529 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
2530 | // collect final view cells
|
---|
2531 | mBspTree->CollectViewCells(mViewCells);
|
---|
2532 | }
|
---|
2533 | else
|
---|
2534 | {
|
---|
2535 | mBspTree->Construct(mViewCells);
|
---|
2536 | }
|
---|
2537 |
|
---|
2538 | // destroy rays created only for construction
|
---|
2539 | CLEAR_CONTAINER(constructionRays);
|
---|
2540 |
|
---|
2541 | Debug << mBspTree->GetStatistics() << endl;
|
---|
2542 |
|
---|
2543 | //EvaluateViewCellsStats();
|
---|
2544 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
2545 |
|
---|
2546 | // recast rest of the rays
|
---|
2547 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
2548 | ComputeSampleContributions(savedRays, true, false);
|
---|
2549 |
|
---|
2550 | // real meshes are contructed at this stage
|
---|
2551 | if (0)
|
---|
2552 | {
|
---|
2553 | cout << "finalizing view cells ... ";
|
---|
2554 | FinalizeViewCells(true);
|
---|
2555 | cout << "finished" << endl;
|
---|
2556 | }
|
---|
2557 |
|
---|
2558 | return sampleContributions;
|
---|
2559 | }
|
---|
2560 |
|
---|
2561 |
|
---|
2562 | void BspViewCellsManager::CollectViewCells()
|
---|
2563 | {
|
---|
2564 | // view cells tree constructed
|
---|
2565 | if (!ViewCellsTreeConstructed())
|
---|
2566 | {
|
---|
2567 | mBspTree->CollectViewCells(mViewCells);
|
---|
2568 | }
|
---|
2569 | else
|
---|
2570 | {
|
---|
2571 | // we can use the view cells tree hierarchy to get the right set
|
---|
2572 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
2573 | mNumActiveViewCells);
|
---|
2574 | }
|
---|
2575 | }
|
---|
2576 |
|
---|
2577 |
|
---|
2578 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
2579 | {
|
---|
2580 | // compute view cell area as subsititute for probability
|
---|
2581 | if (1)
|
---|
2582 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
2583 | else
|
---|
2584 | return GetArea(viewCell) / GetAccVcArea();
|
---|
2585 | }
|
---|
2586 |
|
---|
2587 |
|
---|
2588 |
|
---|
2589 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2590 | const Vector3 &termination,
|
---|
2591 | ViewCellContainer &viewcells)
|
---|
2592 | {
|
---|
2593 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
2594 | }
|
---|
2595 |
|
---|
2596 |
|
---|
2597 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
2598 | const VssRayContainer &rays)
|
---|
2599 | {
|
---|
2600 | if (!ViewCellsConstructed())
|
---|
2601 | {
|
---|
2602 | Debug << "view cells not constructed" << endl;
|
---|
2603 | return 0;
|
---|
2604 | }
|
---|
2605 |
|
---|
2606 | // view cells already finished before post processing step,
|
---|
2607 | // i.e., because they were loaded from disc
|
---|
2608 | if (mViewCellsFinished)
|
---|
2609 | {
|
---|
2610 | FinalizeViewCells(true);
|
---|
2611 | EvaluateViewCellsStats();
|
---|
2612 |
|
---|
2613 | return 0;
|
---|
2614 | }
|
---|
2615 |
|
---|
2616 | int vcSize = 0;
|
---|
2617 | int pvsSize = 0;
|
---|
2618 |
|
---|
2619 |
|
---|
2620 | ///////////////////////
|
---|
2621 | //-- merge leaves of the view cell hierarchy
|
---|
2622 |
|
---|
2623 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
2624 | long startTime = GetTime();
|
---|
2625 |
|
---|
2626 | VssRayContainer postProcessRays;
|
---|
2627 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
2628 |
|
---|
2629 | if (mMergeViewCells)
|
---|
2630 | {
|
---|
2631 | cout << "constructing visibility based merge tree" << endl;
|
---|
2632 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
2633 | }
|
---|
2634 | else
|
---|
2635 | {
|
---|
2636 | cout << "constructing spatial merge tree" << endl;
|
---|
2637 |
|
---|
2638 | // create spatial merge hierarchy
|
---|
2639 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
2640 | mViewCellsTree->SetRoot(root);
|
---|
2641 |
|
---|
2642 | // recompute pvs in the whole hierarchy
|
---|
2643 | ObjectPvs pvs;
|
---|
2644 | UpdatePvsForEvaluation(root, pvs);
|
---|
2645 | }
|
---|
2646 |
|
---|
2647 | cout << "finished" << endl;
|
---|
2648 | cout << "merged view cells in "
|
---|
2649 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
2650 |
|
---|
2651 | Debug << "Postprocessing: Merged view cells in "
|
---|
2652 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
2653 |
|
---|
2654 |
|
---|
2655 | /////////////////////////////////////////
|
---|
2656 | //-- visualization and statistics
|
---|
2657 |
|
---|
2658 | // export statistics after merge
|
---|
2659 | if (1)
|
---|
2660 | {
|
---|
2661 | char mstats[100];
|
---|
2662 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
2663 | mViewCellsTree->ExportStats(mstats);
|
---|
2664 | }
|
---|
2665 |
|
---|
2666 | ResetViewCells(); // reset view cells
|
---|
2667 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
2668 |
|
---|
2669 | // save color code
|
---|
2670 | const int savedColorCode = mColorCode;
|
---|
2671 |
|
---|
2672 | //BspLeaf::NewMail();
|
---|
2673 | if (1) // export merged view cells
|
---|
2674 | {
|
---|
2675 | mColorCode = 0;
|
---|
2676 |
|
---|
2677 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
2678 |
|
---|
2679 |
|
---|
2680 | cout << "exporting view cells after merge ... ";
|
---|
2681 |
|
---|
2682 | if (exporter)
|
---|
2683 | {
|
---|
2684 | if (mExportGeometry)
|
---|
2685 | exporter->ExportGeometry(objects);
|
---|
2686 |
|
---|
2687 | //exporter->SetWireframe();
|
---|
2688 | exporter->SetFilled();
|
---|
2689 | ExportViewCellsForViz(exporter);
|
---|
2690 |
|
---|
2691 |
|
---|
2692 | delete exporter;
|
---|
2693 | }
|
---|
2694 | cout << "finished" << endl;
|
---|
2695 | }
|
---|
2696 |
|
---|
2697 | if (1) // export merged view cells using pvs color coding
|
---|
2698 | {
|
---|
2699 | mColorCode = 1;
|
---|
2700 |
|
---|
2701 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
2702 |
|
---|
2703 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
2704 |
|
---|
2705 | if (exporter)
|
---|
2706 | {
|
---|
2707 | //exporter->SetWireframe();
|
---|
2708 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
2709 |
|
---|
2710 | if (mExportGeometry)
|
---|
2711 | exporter->ExportGeometry(objects);
|
---|
2712 |
|
---|
2713 | //exporter->SetWireframe();
|
---|
2714 | exporter->SetFilled();
|
---|
2715 | ExportViewCellsForViz(exporter);
|
---|
2716 |
|
---|
2717 | delete exporter;
|
---|
2718 | }
|
---|
2719 | cout << "finished" << endl;
|
---|
2720 | }
|
---|
2721 |
|
---|
2722 | // only for debugging purpose: test if the subdivision is valid
|
---|
2723 | if (0) TestSubdivision();
|
---|
2724 |
|
---|
2725 | mColorCode = savedColorCode;
|
---|
2726 |
|
---|
2727 | // compute final meshes and volume / area
|
---|
2728 | if (1) FinalizeViewCells(true);
|
---|
2729 |
|
---|
2730 | // write view cells to disc
|
---|
2731 | if (mExportViewCells)
|
---|
2732 | {
|
---|
2733 | char filename[100];
|
---|
2734 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
2735 | ExportViewCells(filename, mExportPvs, objects);
|
---|
2736 | }
|
---|
2737 |
|
---|
2738 | return 0;
|
---|
2739 | }
|
---|
2740 |
|
---|
2741 |
|
---|
2742 | BspViewCellsManager::~BspViewCellsManager()
|
---|
2743 | {
|
---|
2744 | }
|
---|
2745 |
|
---|
2746 |
|
---|
2747 | int BspViewCellsManager::GetType() const
|
---|
2748 | {
|
---|
2749 | return BSP;
|
---|
2750 | }
|
---|
2751 |
|
---|
2752 |
|
---|
2753 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
2754 | const VssRayContainer &sampleRays)
|
---|
2755 | {
|
---|
2756 | if (!ViewCellsConstructed())
|
---|
2757 | return;
|
---|
2758 |
|
---|
2759 | int savedColorCode = mColorCode;
|
---|
2760 |
|
---|
2761 |
|
---|
2762 | if (1) // export final view cells
|
---|
2763 | {
|
---|
2764 | mColorCode = 1; // hack color code
|
---|
2765 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
2766 |
|
---|
2767 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
2768 |
|
---|
2769 | if (exporter)
|
---|
2770 | {
|
---|
2771 | //exporter->SetWireframe();
|
---|
2772 |
|
---|
2773 | if (mExportGeometry)
|
---|
2774 | exporter->ExportGeometry(objects);
|
---|
2775 |
|
---|
2776 | //exporter->SetFilled();
|
---|
2777 | const bool b = mUseClipPlaneForViz;
|
---|
2778 | mUseClipPlaneForViz = false;
|
---|
2779 |
|
---|
2780 | ExportViewCellsForViz(exporter);
|
---|
2781 |
|
---|
2782 | mUseClipPlaneForViz = b;
|
---|
2783 | delete exporter;
|
---|
2784 | }
|
---|
2785 | cout << "finished" << endl;
|
---|
2786 | }
|
---|
2787 |
|
---|
2788 | mColorCode = savedColorCode;
|
---|
2789 |
|
---|
2790 | //-- visualization of the BSP splits
|
---|
2791 | bool exportSplits = false;
|
---|
2792 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
2793 |
|
---|
2794 | if (exportSplits)
|
---|
2795 | {
|
---|
2796 | cout << "exporting splits ... ";
|
---|
2797 | ExportSplits(objects);
|
---|
2798 | cout << "finished" << endl;
|
---|
2799 | }
|
---|
2800 |
|
---|
2801 | // export single view cells
|
---|
2802 | ExportBspPvs(objects);
|
---|
2803 | }
|
---|
2804 |
|
---|
2805 |
|
---|
2806 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
2807 | {
|
---|
2808 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
2809 |
|
---|
2810 | if (exporter)
|
---|
2811 | {
|
---|
2812 | //exporter->SetFilled();
|
---|
2813 |
|
---|
2814 | if (mExportGeometry)
|
---|
2815 | exporter->ExportGeometry(objects);
|
---|
2816 |
|
---|
2817 | Material m;
|
---|
2818 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2819 | exporter->SetForcedMaterial(m);
|
---|
2820 | exporter->SetWireframe();
|
---|
2821 |
|
---|
2822 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
2823 |
|
---|
2824 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
2825 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2826 | exporter->SetForcedMaterial(m);
|
---|
2827 | //exporter->ResetForcedMaterial();
|
---|
2828 |
|
---|
2829 | delete exporter;
|
---|
2830 | }
|
---|
2831 | }
|
---|
2832 |
|
---|
2833 |
|
---|
2834 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
2835 | {
|
---|
2836 | const int leafOut = 10;
|
---|
2837 |
|
---|
2838 | ViewCell::NewMail();
|
---|
2839 |
|
---|
2840 | //-- some rays for output
|
---|
2841 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
2842 |
|
---|
2843 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
2844 | Debug << "\nOutput view cells: " << endl;
|
---|
2845 |
|
---|
2846 | // sort view cells in order to find the largest view cells
|
---|
2847 | if (0)
|
---|
2848 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
2849 |
|
---|
2850 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
2851 |
|
---|
2852 | for (int i = 0; i < limit; ++ i)
|
---|
2853 | {
|
---|
2854 | cout << "creating output for view cell " << i << " ... ";
|
---|
2855 | VssRayContainer vcRays;
|
---|
2856 | Intersectable::NewMail();
|
---|
2857 | ViewCell *vc;
|
---|
2858 |
|
---|
2859 | if (0)
|
---|
2860 | vc = mViewCells[i];
|
---|
2861 | else
|
---|
2862 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
2863 |
|
---|
2864 | cout << "creating output for view cell " << i << " ... ";
|
---|
2865 |
|
---|
2866 | if(0)
|
---|
2867 | {
|
---|
2868 | // check whether we can add the current ray to the output rays
|
---|
2869 | for (int k = 0; k < raysOut; ++ k)
|
---|
2870 | {
|
---|
2871 | BspRay *ray = mBspRays[k];
|
---|
2872 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
2873 | {
|
---|
2874 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
2875 | if (vc == leaf->GetViewCell())
|
---|
2876 | vcRays.push_back(ray->vssRay);
|
---|
2877 | }
|
---|
2878 | }
|
---|
2879 | }
|
---|
2880 |
|
---|
2881 | //bspLeaves[j]->Mail();
|
---|
2882 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
2883 |
|
---|
2884 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
2885 |
|
---|
2886 | exporter->SetWireframe();
|
---|
2887 |
|
---|
2888 | Material m;//= RandomMaterial();
|
---|
2889 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2890 | exporter->SetForcedMaterial(m);
|
---|
2891 |
|
---|
2892 | ExportViewCellGeometry(exporter, vc);
|
---|
2893 |
|
---|
2894 | // export rays piercing this view cell
|
---|
2895 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
2896 |
|
---|
2897 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2898 | exporter->SetForcedMaterial(m);
|
---|
2899 |
|
---|
2900 | ObjectPvsMap::const_iterator it,
|
---|
2901 | it_end = vc->GetPvs().mEntries.end();
|
---|
2902 |
|
---|
2903 | exporter->SetFilled();
|
---|
2904 |
|
---|
2905 | // output PVS of view cell
|
---|
2906 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
2907 | {
|
---|
2908 | Intersectable *intersect = (*it).first;
|
---|
2909 |
|
---|
2910 | if (!intersect->Mailed())
|
---|
2911 | {
|
---|
2912 | Material m = RandomMaterial();
|
---|
2913 | exporter->SetForcedMaterial(m);
|
---|
2914 |
|
---|
2915 | exporter->ExportIntersectable(intersect);
|
---|
2916 | intersect->Mail();
|
---|
2917 | }
|
---|
2918 | }
|
---|
2919 |
|
---|
2920 | DEL_PTR(exporter);
|
---|
2921 | cout << "finished" << endl;
|
---|
2922 | }
|
---|
2923 |
|
---|
2924 | Debug << endl;
|
---|
2925 | }
|
---|
2926 |
|
---|
2927 |
|
---|
2928 | void BspViewCellsManager::TestSubdivision()
|
---|
2929 | {
|
---|
2930 | ViewCellContainer leaves;
|
---|
2931 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
2932 |
|
---|
2933 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
2934 |
|
---|
2935 | const float vol = mViewSpaceBox.GetVolume();
|
---|
2936 | float subdivVol = 0;
|
---|
2937 | float newVol = 0;
|
---|
2938 |
|
---|
2939 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
2940 | {
|
---|
2941 | BspNodeGeometry geom;
|
---|
2942 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
2943 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
2944 |
|
---|
2945 | const float lVol = geom.GetVolume();
|
---|
2946 |
|
---|
2947 | newVol += lVol;
|
---|
2948 | subdivVol += (*it)->GetVolume();
|
---|
2949 |
|
---|
2950 | float thres = 0.9f;
|
---|
2951 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
2952 | (lVol * thres > ((*it)->GetVolume())))
|
---|
2953 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
2954 | }
|
---|
2955 |
|
---|
2956 | Debug << "exact volume: " << vol << endl;
|
---|
2957 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
2958 | Debug << "new volume: " << newVol << endl;
|
---|
2959 | }
|
---|
2960 |
|
---|
2961 |
|
---|
2962 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
2963 | ViewCell *vc,
|
---|
2964 | const AxisAlignedPlane *clipPlane) const
|
---|
2965 | {
|
---|
2966 | // export mesh if available
|
---|
2967 | if (vc->GetMesh())
|
---|
2968 | {
|
---|
2969 | exporter->ExportMesh(vc->GetMesh());
|
---|
2970 | return;
|
---|
2971 | }
|
---|
2972 | // otherwise construct from leaves
|
---|
2973 | if (clipPlane)
|
---|
2974 | {
|
---|
2975 | const Plane3 plane = clipPlane->GetPlane();
|
---|
2976 |
|
---|
2977 | ViewCellContainer leaves;
|
---|
2978 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2979 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
2980 |
|
---|
2981 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
2982 | {
|
---|
2983 | BspNodeGeometry geom;
|
---|
2984 |
|
---|
2985 | BspNodeGeometry front;
|
---|
2986 | BspNodeGeometry back;
|
---|
2987 |
|
---|
2988 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
2989 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
2990 |
|
---|
2991 | const float eps = 0.00000001f;
|
---|
2992 | const int cf = geom.Side(plane, eps);
|
---|
2993 |
|
---|
2994 | if (cf == -1)
|
---|
2995 | {
|
---|
2996 | exporter->ExportPolygons(geom.GetPolys());
|
---|
2997 | }
|
---|
2998 | else if (cf == 0)
|
---|
2999 | {
|
---|
3000 | geom.SplitGeometry(front,
|
---|
3001 | back,
|
---|
3002 | plane,
|
---|
3003 | mViewSpaceBox,
|
---|
3004 | eps);
|
---|
3005 |
|
---|
3006 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
3007 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
3008 | if (back.Valid())
|
---|
3009 | {
|
---|
3010 | exporter->ExportPolygons(back.GetPolys());
|
---|
3011 | }
|
---|
3012 | }
|
---|
3013 | }
|
---|
3014 | }
|
---|
3015 | else
|
---|
3016 | {
|
---|
3017 | BspNodeGeometry geom;
|
---|
3018 | mBspTree->ConstructGeometry(vc, geom);
|
---|
3019 |
|
---|
3020 | exporter->ExportPolygons(geom.GetPolys());
|
---|
3021 | }
|
---|
3022 | }
|
---|
3023 |
|
---|
3024 |
|
---|
3025 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
3026 | {
|
---|
3027 | // delete previous mesh
|
---|
3028 | ///DEL_PTR(vc->GetMesh());
|
---|
3029 | BspNodeGeometry geom;
|
---|
3030 | mBspTree->ConstructGeometry(vc, geom);
|
---|
3031 |
|
---|
3032 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
3033 |
|
---|
3034 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
3035 | vc->SetMesh(mesh);
|
---|
3036 | }
|
---|
3037 |
|
---|
3038 |
|
---|
3039 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
3040 | const bool createMesh)
|
---|
3041 | {
|
---|
3042 | float area = 0;
|
---|
3043 | float volume = 0;
|
---|
3044 |
|
---|
3045 | ViewCellContainer leaves;
|
---|
3046 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
3047 |
|
---|
3048 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
3049 |
|
---|
3050 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
3051 | {
|
---|
3052 | BspNodeGeometry geom;
|
---|
3053 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
3054 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
3055 |
|
---|
3056 | const float lVol = geom.GetVolume();
|
---|
3057 | const float lArea = geom.GetArea();
|
---|
3058 |
|
---|
3059 | //(*it)->SetVolume(vol);
|
---|
3060 | //(*it)->SetArea(area);
|
---|
3061 |
|
---|
3062 | area += lArea;
|
---|
3063 | volume += lVol;
|
---|
3064 |
|
---|
3065 | CreateMesh(*it);
|
---|
3066 | }
|
---|
3067 |
|
---|
3068 | viewCell->SetVolume(volume);
|
---|
3069 | viewCell->SetArea(area);
|
---|
3070 | }
|
---|
3071 |
|
---|
3072 |
|
---|
3073 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
3074 | {
|
---|
3075 | if (!ViewCellsConstructed())
|
---|
3076 | return NULL;
|
---|
3077 |
|
---|
3078 | if (!mViewSpaceBox.IsInside(point))
|
---|
3079 | return NULL;
|
---|
3080 |
|
---|
3081 | return mBspTree->GetViewCell(point);
|
---|
3082 | }
|
---|
3083 |
|
---|
3084 |
|
---|
3085 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
3086 | vector<MergeCandidate> &candidates)
|
---|
3087 | {
|
---|
3088 | cout << "collecting merge candidates ... " << endl;
|
---|
3089 |
|
---|
3090 | if (mUseRaysForMerge)
|
---|
3091 | {
|
---|
3092 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
3093 | }
|
---|
3094 | else
|
---|
3095 | {
|
---|
3096 | vector<BspLeaf *> leaves;
|
---|
3097 | mBspTree->CollectLeaves(leaves);
|
---|
3098 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
3099 | }
|
---|
3100 |
|
---|
3101 | cout << "fininshed collecting candidates" << endl;
|
---|
3102 | }
|
---|
3103 |
|
---|
3104 |
|
---|
3105 |
|
---|
3106 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
3107 | const bool exportPvs,
|
---|
3108 | const ObjectContainer &objects)
|
---|
3109 | {
|
---|
3110 | #if TODO
|
---|
3111 | cout << "exporting view cells to xml ... ";
|
---|
3112 | std::ofstream stream;
|
---|
3113 |
|
---|
3114 | // for output we need unique ids for each view cell
|
---|
3115 | CreateUniqueViewCellIds();
|
---|
3116 |
|
---|
3117 |
|
---|
3118 | stream.open(filename.c_str());
|
---|
3119 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
3120 | stream << "<VisibilitySolution>" << endl;
|
---|
3121 |
|
---|
3122 | //-- the view space bounding box
|
---|
3123 | stream << "<ViewSpaceBox"
|
---|
3124 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
3125 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
3126 |
|
---|
3127 | //-- the type of the view cells hierarchy
|
---|
3128 |
|
---|
3129 | // NOTE: load in vsp bsp here because bsp and vsp bsp can use same tree and vsp bsp is bug free
|
---|
3130 | stream << "<Hierarchy name=\"vspBspTree\" >" << endl;
|
---|
3131 |
|
---|
3132 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
3133 | stream << "<ViewCells>" << endl;
|
---|
3134 |
|
---|
3135 | mViewCellsTree->Export(stream, exportPvs);
|
---|
3136 |
|
---|
3137 | stream << "</ViewCells>" << endl;
|
---|
3138 |
|
---|
3139 | //-- load the hierarchy
|
---|
3140 | stream << "<Hierarchy>" << endl;
|
---|
3141 | mBspTree->Export(stream);
|
---|
3142 | stream << endl << "</Hierarchy>" << endl;
|
---|
3143 |
|
---|
3144 | stream << "</VisibilitySolution>" << endl;
|
---|
3145 | stream.close();
|
---|
3146 |
|
---|
3147 | cout << "finished" << endl;
|
---|
3148 | #endif
|
---|
3149 | return true;
|
---|
3150 | }
|
---|
3151 |
|
---|
3152 |
|
---|
3153 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
3154 | {
|
---|
3155 | // terminate recursion
|
---|
3156 | if (root->IsLeaf())
|
---|
3157 | {
|
---|
3158 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
3159 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
3160 | return leaf->GetViewCell();
|
---|
3161 | }
|
---|
3162 |
|
---|
3163 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
3164 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
3165 |
|
---|
3166 | // evaluate merge cost for priority traversal
|
---|
3167 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
3168 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
3169 |
|
---|
3170 | float volume = 0;
|
---|
3171 |
|
---|
3172 | BspNode *front = interior->GetFront();
|
---|
3173 | BspNode *back = interior->GetBack();
|
---|
3174 |
|
---|
3175 |
|
---|
3176 | //-- recursivly compute child hierarchies
|
---|
3177 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
3178 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
3179 |
|
---|
3180 |
|
---|
3181 | viewCellInterior->SetupChildLink(backVc);
|
---|
3182 | viewCellInterior->SetupChildLink(frontVc);
|
---|
3183 |
|
---|
3184 | volume += backVc->GetVolume();
|
---|
3185 | volume += frontVc->GetVolume();
|
---|
3186 |
|
---|
3187 | viewCellInterior->SetVolume(volume);
|
---|
3188 |
|
---|
3189 | return viewCellInterior;
|
---|
3190 | }
|
---|
3191 |
|
---|
3192 |
|
---|
3193 | /************************************************************************/
|
---|
3194 | /* KdViewCellsManager implementation */
|
---|
3195 | /************************************************************************/
|
---|
3196 |
|
---|
3197 |
|
---|
3198 |
|
---|
3199 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
3200 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
3201 | {
|
---|
3202 | }
|
---|
3203 |
|
---|
3204 |
|
---|
3205 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
3206 | {
|
---|
3207 | // compute view cell area / volume as subsititute for probability
|
---|
3208 | if (0)
|
---|
3209 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
3210 | else
|
---|
3211 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
3212 | }
|
---|
3213 |
|
---|
3214 |
|
---|
3215 |
|
---|
3216 |
|
---|
3217 | void KdViewCellsManager::CollectViewCells()
|
---|
3218 | {
|
---|
3219 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
3220 | }
|
---|
3221 |
|
---|
3222 |
|
---|
3223 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
3224 | const VssRayContainer &rays)
|
---|
3225 | {
|
---|
3226 | // if view cells already constructed
|
---|
3227 | if (ViewCellsConstructed())
|
---|
3228 | return 0;
|
---|
3229 |
|
---|
3230 | mKdTree->Construct();
|
---|
3231 |
|
---|
3232 | mTotalAreaValid = false;
|
---|
3233 | // create the view cells
|
---|
3234 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
3235 |
|
---|
3236 | // cast rays
|
---|
3237 | ComputeSampleContributions(rays, true, false);
|
---|
3238 |
|
---|
3239 | EvaluateViewCellsStats();
|
---|
3240 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
3241 |
|
---|
3242 | return 0;
|
---|
3243 | }
|
---|
3244 |
|
---|
3245 |
|
---|
3246 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
3247 | {
|
---|
3248 | return mKdTree->GetRoot() != NULL;
|
---|
3249 | }
|
---|
3250 |
|
---|
3251 |
|
---|
3252 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
3253 | const VssRayContainer &rays)
|
---|
3254 | {
|
---|
3255 | return 0;
|
---|
3256 | }
|
---|
3257 |
|
---|
3258 |
|
---|
3259 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
3260 | const VssRayContainer &sampleRays)
|
---|
3261 | {
|
---|
3262 | if (!ViewCellsConstructed())
|
---|
3263 | return;
|
---|
3264 |
|
---|
3265 | // using view cells instead of the kd PVS of objects
|
---|
3266 | const bool useViewCells = true;
|
---|
3267 | bool exportRays = false;
|
---|
3268 |
|
---|
3269 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
3270 | const int pvsOut = min((int)objects.size(), 10);
|
---|
3271 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
3272 |
|
---|
3273 | if (useViewCells)
|
---|
3274 | {
|
---|
3275 | const int leafOut = 10;
|
---|
3276 |
|
---|
3277 | ViewCell::NewMail();
|
---|
3278 |
|
---|
3279 | //-- some rays for output
|
---|
3280 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
3281 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
3282 |
|
---|
3283 | //-- some random view cells and rays for output
|
---|
3284 | vector<KdLeaf *> kdLeaves;
|
---|
3285 |
|
---|
3286 | for (int i = 0; i < leafOut; ++ i)
|
---|
3287 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
3288 |
|
---|
3289 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
3290 | {
|
---|
3291 | KdLeaf *leaf = kdLeaves[i];
|
---|
3292 | RayContainer vcRays;
|
---|
3293 |
|
---|
3294 | cout << "creating output for view cell " << i << " ... ";
|
---|
3295 | #if 0
|
---|
3296 | // check whether we can add the current ray to the output rays
|
---|
3297 | for (int k = 0; k < raysOut; ++ k)
|
---|
3298 | {
|
---|
3299 | Ray *ray = sampleRays[k];
|
---|
3300 |
|
---|
3301 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
3302 | {
|
---|
3303 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
3304 |
|
---|
3305 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
3306 | {
|
---|
3307 | vcRays.push_back(ray);
|
---|
3308 | }
|
---|
3309 | }
|
---|
3310 | }
|
---|
3311 | #endif
|
---|
3312 | Intersectable::NewMail();
|
---|
3313 |
|
---|
3314 | ViewCell *vc = leaf->mViewCell;
|
---|
3315 |
|
---|
3316 | //bspLeaves[j]->Mail();
|
---|
3317 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
3318 |
|
---|
3319 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
3320 | exporter->SetFilled();
|
---|
3321 |
|
---|
3322 | exporter->SetWireframe();
|
---|
3323 | //exporter->SetFilled();
|
---|
3324 |
|
---|
3325 | Material m;//= RandomMaterial();
|
---|
3326 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
3327 | exporter->SetForcedMaterial(m);
|
---|
3328 |
|
---|
3329 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
3330 | exporter->ExportBox(box);
|
---|
3331 |
|
---|
3332 | // export rays piercing this view cell
|
---|
3333 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
3334 |
|
---|
3335 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
3336 | exporter->SetForcedMaterial(m);
|
---|
3337 |
|
---|
3338 | // exporter->SetWireframe();
|
---|
3339 | exporter->SetFilled();
|
---|
3340 |
|
---|
3341 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
3342 | // -- output PVS of view cell
|
---|
3343 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
3344 | {
|
---|
3345 | Intersectable *intersect = (*it).first;
|
---|
3346 | if (!intersect->Mailed())
|
---|
3347 | {
|
---|
3348 | exporter->ExportIntersectable(intersect);
|
---|
3349 | intersect->Mail();
|
---|
3350 | }
|
---|
3351 | }
|
---|
3352 |
|
---|
3353 | DEL_PTR(exporter);
|
---|
3354 | cout << "finished" << endl;
|
---|
3355 | }
|
---|
3356 |
|
---|
3357 | DEL_PTR(rays);
|
---|
3358 | }
|
---|
3359 | else // using kd PVS of objects
|
---|
3360 | {
|
---|
3361 | for (int i = 0; i < limit; ++ i)
|
---|
3362 | {
|
---|
3363 | VssRay *ray = sampleRays[i];
|
---|
3364 |
|
---|
3365 | // check whether we can add this to the rays
|
---|
3366 | for (int j = 0; j < pvsOut; j++)
|
---|
3367 | {
|
---|
3368 | if (objects[j] == ray->mTerminationObject)
|
---|
3369 | {
|
---|
3370 | rays[j].push_back(ray);
|
---|
3371 | }
|
---|
3372 | }
|
---|
3373 | }
|
---|
3374 |
|
---|
3375 | if (exportRays)
|
---|
3376 | {
|
---|
3377 | Exporter *exporter = NULL;
|
---|
3378 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
3379 | exporter->SetWireframe();
|
---|
3380 | exporter->ExportKdTree(*mKdTree);
|
---|
3381 |
|
---|
3382 | for (i = 0; i < pvsOut; i++)
|
---|
3383 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
3384 |
|
---|
3385 | exporter->SetFilled();
|
---|
3386 |
|
---|
3387 | delete exporter;
|
---|
3388 | }
|
---|
3389 |
|
---|
3390 | for (int k=0; k < pvsOut; k++)
|
---|
3391 | {
|
---|
3392 | Intersectable *object = objects[k];
|
---|
3393 | char s[64];
|
---|
3394 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
3395 |
|
---|
3396 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
3397 | exporter->SetWireframe();
|
---|
3398 |
|
---|
3399 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
3400 | Intersectable::NewMail();
|
---|
3401 |
|
---|
3402 | // avoid adding the object to the list
|
---|
3403 | object->Mail();
|
---|
3404 | ObjectContainer visibleObjects;
|
---|
3405 |
|
---|
3406 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
3407 | {
|
---|
3408 | KdNode *node = (*kit).first;
|
---|
3409 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
3410 |
|
---|
3411 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
3412 | }
|
---|
3413 |
|
---|
3414 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
3415 | exporter->SetFilled();
|
---|
3416 |
|
---|
3417 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
3418 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
3419 |
|
---|
3420 | Material m;
|
---|
3421 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
3422 | exporter->SetForcedMaterial(m);
|
---|
3423 | exporter->ExportIntersectable(object);
|
---|
3424 |
|
---|
3425 | delete exporter;
|
---|
3426 | }
|
---|
3427 | }
|
---|
3428 | }
|
---|
3429 |
|
---|
3430 |
|
---|
3431 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
3432 | {
|
---|
3433 | return new KdViewCell(mesh);
|
---|
3434 | }
|
---|
3435 |
|
---|
3436 |
|
---|
3437 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
3438 | ViewCell *vc,
|
---|
3439 | const AxisAlignedPlane *clipPlane) const
|
---|
3440 | {
|
---|
3441 | ViewCellContainer leaves;
|
---|
3442 |
|
---|
3443 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
3444 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
3445 |
|
---|
3446 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
3447 | {
|
---|
3448 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
3449 |
|
---|
3450 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
3451 | }
|
---|
3452 | }
|
---|
3453 |
|
---|
3454 |
|
---|
3455 | int KdViewCellsManager::GetType() const
|
---|
3456 | {
|
---|
3457 | return ViewCellsManager::KD;
|
---|
3458 | }
|
---|
3459 |
|
---|
3460 |
|
---|
3461 |
|
---|
3462 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
3463 | {
|
---|
3464 | KdNode *node = leaf;
|
---|
3465 |
|
---|
3466 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
3467 | node = node->mParent;
|
---|
3468 |
|
---|
3469 | return node;
|
---|
3470 | }
|
---|
3471 |
|
---|
3472 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
3473 | const Vector3 &termination,
|
---|
3474 | ViewCellContainer &viewcells)
|
---|
3475 | {
|
---|
3476 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
3477 | }
|
---|
3478 |
|
---|
3479 |
|
---|
3480 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
3481 | {
|
---|
3482 | // TODO
|
---|
3483 | }
|
---|
3484 |
|
---|
3485 |
|
---|
3486 |
|
---|
3487 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
3488 | vector<MergeCandidate> &candidates)
|
---|
3489 | {
|
---|
3490 | // TODO
|
---|
3491 | }
|
---|
3492 |
|
---|
3493 |
|
---|
3494 |
|
---|
3495 | /**************************************************************************/
|
---|
3496 | /* VspBspViewCellsManager implementation */
|
---|
3497 | /**************************************************************************/
|
---|
3498 |
|
---|
3499 |
|
---|
3500 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
3501 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
3502 | {
|
---|
3503 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
3504 | mVspBspTree->SetViewCellsManager(this);
|
---|
3505 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
3506 | }
|
---|
3507 |
|
---|
3508 |
|
---|
3509 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
3510 | {
|
---|
3511 | }
|
---|
3512 |
|
---|
3513 |
|
---|
3514 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
3515 | {
|
---|
3516 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
3517 | return GetArea(viewCell) / GetAccVcArea();
|
---|
3518 | else
|
---|
3519 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
3520 | }
|
---|
3521 |
|
---|
3522 |
|
---|
3523 | void VspBspViewCellsManager::CollectViewCells()
|
---|
3524 | {
|
---|
3525 | // view cells tree constructed
|
---|
3526 | if (!ViewCellsTreeConstructed())
|
---|
3527 | {
|
---|
3528 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
3529 | }
|
---|
3530 | else
|
---|
3531 | {
|
---|
3532 | // we can use the view cells tree hierarchy to get the right set
|
---|
3533 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
3534 | }
|
---|
3535 | }
|
---|
3536 |
|
---|
3537 |
|
---|
3538 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
3539 | vector<MergeCandidate> &candidates)
|
---|
3540 | {
|
---|
3541 | cout << "collecting merge candidates ... " << endl;
|
---|
3542 |
|
---|
3543 | if (mUseRaysForMerge)
|
---|
3544 | {
|
---|
3545 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
3546 | }
|
---|
3547 | else
|
---|
3548 | {
|
---|
3549 | vector<BspLeaf *> leaves;
|
---|
3550 | mVspBspTree->CollectLeaves(leaves);
|
---|
3551 |
|
---|
3552 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
3553 | }
|
---|
3554 |
|
---|
3555 | cout << "fininshed collecting candidates" << endl;
|
---|
3556 | }
|
---|
3557 |
|
---|
3558 |
|
---|
3559 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
3560 | {
|
---|
3561 | return mVspBspTree->GetRoot() != NULL;
|
---|
3562 | }
|
---|
3563 |
|
---|
3564 |
|
---|
3565 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
3566 | {
|
---|
3567 | return new BspViewCell(mesh);
|
---|
3568 | }
|
---|
3569 |
|
---|
3570 |
|
---|
3571 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
3572 | const VssRayContainer &rays)
|
---|
3573 | {
|
---|
3574 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
3575 |
|
---|
3576 | // if view cells were already constructed
|
---|
3577 | if (ViewCellsConstructed())
|
---|
3578 | return 0;
|
---|
3579 |
|
---|
3580 | int sampleContributions = 0;
|
---|
3581 |
|
---|
3582 | VssRayContainer sampleRays;
|
---|
3583 |
|
---|
3584 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
3585 |
|
---|
3586 | VssRayContainer constructionRays;
|
---|
3587 | VssRayContainer savedRays;
|
---|
3588 |
|
---|
3589 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
3590 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
3591 |
|
---|
3592 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
3593 |
|
---|
3594 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
3595 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
3596 |
|
---|
3597 | long startTime;
|
---|
3598 |
|
---|
3599 | if (1)
|
---|
3600 | {
|
---|
3601 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
3602 | }
|
---|
3603 | else
|
---|
3604 | {
|
---|
3605 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
3606 | }
|
---|
3607 |
|
---|
3608 | // collapse invalid regions
|
---|
3609 | cout << "collapsing invalid tree regions ... ";
|
---|
3610 | startTime = GetTime();
|
---|
3611 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
3612 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
3613 | << " seconds" << endl;
|
---|
3614 |
|
---|
3615 | cout << "finished" << endl;
|
---|
3616 |
|
---|
3617 | //-- stats after construction
|
---|
3618 |
|
---|
3619 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
3620 |
|
---|
3621 | ResetViewCells();
|
---|
3622 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
3623 |
|
---|
3624 |
|
---|
3625 | startTime = GetTime();
|
---|
3626 |
|
---|
3627 | cout << "Computing remaining ray contributions ... ";
|
---|
3628 |
|
---|
3629 | // recast rest of rays
|
---|
3630 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
3631 | ComputeSampleContributions(savedRays, true, false);
|
---|
3632 |
|
---|
3633 | cout << "finished" << endl;
|
---|
3634 |
|
---|
3635 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
3636 | << " secs" << endl;
|
---|
3637 |
|
---|
3638 | cout << "construction finished" << endl;
|
---|
3639 |
|
---|
3640 |
|
---|
3641 | if (0)
|
---|
3642 | {
|
---|
3643 | //-- real meshes are contructed at this stage
|
---|
3644 | cout << "finalizing view cells ... ";
|
---|
3645 | FinalizeViewCells(true);
|
---|
3646 | cout << "finished" << endl;
|
---|
3647 | }
|
---|
3648 |
|
---|
3649 | return sampleContributions;
|
---|
3650 | }
|
---|
3651 |
|
---|
3652 |
|
---|
3653 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
3654 | const ObjectContainer &objects)
|
---|
3655 | {
|
---|
3656 | int vcSize = 0;
|
---|
3657 | int pvsSize = 0;
|
---|
3658 |
|
---|
3659 | //-- merge view cells
|
---|
3660 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
3661 | long startTime = GetTime();
|
---|
3662 |
|
---|
3663 |
|
---|
3664 | if (mMergeViewCells)
|
---|
3665 | {
|
---|
3666 | // TODO: should be done BEFORE the ray casting
|
---|
3667 | // compute tree by merging the nodes based on cost heuristics
|
---|
3668 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
3669 | }
|
---|
3670 | else
|
---|
3671 | {
|
---|
3672 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
3673 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
3674 | mViewCellsTree->SetRoot(root);
|
---|
3675 |
|
---|
3676 | // compute pvs
|
---|
3677 | ObjectPvs pvs;
|
---|
3678 | UpdatePvsForEvaluation(root, pvs);
|
---|
3679 | }
|
---|
3680 |
|
---|
3681 | if (1)
|
---|
3682 | {
|
---|
3683 | char mstats[100];
|
---|
3684 | ObjectPvs pvs;
|
---|
3685 |
|
---|
3686 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
3687 | mViewCellsTree->ExportStats(mstats);
|
---|
3688 | }
|
---|
3689 |
|
---|
3690 | //-- stats and visualizations
|
---|
3691 | cout << "finished merging" << endl;
|
---|
3692 | cout << "merged view cells in "
|
---|
3693 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
3694 |
|
---|
3695 | Debug << "Postprocessing: Merged view cells in "
|
---|
3696 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
3697 |
|
---|
3698 |
|
---|
3699 | int savedColorCode = mColorCode;
|
---|
3700 |
|
---|
3701 | // get currently active view cell set
|
---|
3702 | ResetViewCells();
|
---|
3703 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
3704 |
|
---|
3705 | //BspLeaf::NewMail();
|
---|
3706 | if (1) // export merged view cells
|
---|
3707 | {
|
---|
3708 | mColorCode = 0;
|
---|
3709 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
3710 |
|
---|
3711 | cout << "exporting view cells after merge ... ";
|
---|
3712 |
|
---|
3713 | if (exporter)
|
---|
3714 | {
|
---|
3715 | if (0)
|
---|
3716 | exporter->SetWireframe();
|
---|
3717 | else
|
---|
3718 | exporter->SetFilled();
|
---|
3719 |
|
---|
3720 | ExportViewCellsForViz(exporter);
|
---|
3721 |
|
---|
3722 | if (mExportGeometry)
|
---|
3723 | {
|
---|
3724 | Material m;
|
---|
3725 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
3726 | exporter->SetForcedMaterial(m);
|
---|
3727 | exporter->SetFilled();
|
---|
3728 |
|
---|
3729 | exporter->ExportGeometry(objects);
|
---|
3730 | }
|
---|
3731 |
|
---|
3732 | delete exporter;
|
---|
3733 | }
|
---|
3734 | cout << "finished" << endl;
|
---|
3735 | }
|
---|
3736 |
|
---|
3737 | if (1)
|
---|
3738 | {
|
---|
3739 | mColorCode = 1; // export merged view cells using pvs coding
|
---|
3740 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
3741 |
|
---|
3742 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
3743 |
|
---|
3744 | if (exporter)
|
---|
3745 | {
|
---|
3746 | if (0)
|
---|
3747 | exporter->SetWireframe();
|
---|
3748 | else
|
---|
3749 | exporter->SetFilled();
|
---|
3750 |
|
---|
3751 | ExportViewCellsForViz(exporter);
|
---|
3752 |
|
---|
3753 | if (mExportGeometry)
|
---|
3754 | {
|
---|
3755 | Material m;
|
---|
3756 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
3757 | exporter->SetForcedMaterial(m);
|
---|
3758 | exporter->SetFilled();
|
---|
3759 |
|
---|
3760 | exporter->ExportGeometry(objects);
|
---|
3761 | }
|
---|
3762 |
|
---|
3763 | delete exporter;
|
---|
3764 | }
|
---|
3765 | cout << "finished" << endl;
|
---|
3766 | }
|
---|
3767 |
|
---|
3768 | mColorCode = savedColorCode;
|
---|
3769 |
|
---|
3770 | }
|
---|
3771 |
|
---|
3772 |
|
---|
3773 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
3774 | {
|
---|
3775 | return GetSpatialNode(viewCell) != NULL;
|
---|
3776 | }
|
---|
3777 |
|
---|
3778 |
|
---|
3779 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
3780 | {
|
---|
3781 | if (!viewCell->IsLeaf())
|
---|
3782 | {
|
---|
3783 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
3784 |
|
---|
3785 | return bspVc->mLeaf;
|
---|
3786 | }
|
---|
3787 | else
|
---|
3788 | {
|
---|
3789 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
3790 |
|
---|
3791 | // cannot be node of binary tree
|
---|
3792 | if (interior->mChildren.size() != 2)
|
---|
3793 | return NULL;
|
---|
3794 |
|
---|
3795 | ViewCell *left = interior->mChildren[0];
|
---|
3796 | ViewCell *right = interior->mChildren[1];
|
---|
3797 |
|
---|
3798 | BspNode *leftNode = GetSpatialNode(left);
|
---|
3799 | BspNode *rightNode = GetSpatialNode(right);
|
---|
3800 |
|
---|
3801 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
3802 | {
|
---|
3803 | return leftNode->GetParent();
|
---|
3804 | }
|
---|
3805 | }
|
---|
3806 |
|
---|
3807 | return NULL;
|
---|
3808 | }
|
---|
3809 |
|
---|
3810 |
|
---|
3811 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
3812 | const ObjectContainer &objects)
|
---|
3813 | {
|
---|
3814 | mRenderer->RenderScene();
|
---|
3815 | SimulationStatistics ss;
|
---|
3816 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
3817 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
3818 |
|
---|
3819 | const long startTime = GetTime();
|
---|
3820 | cout << "Refining the merged view cells ... ";
|
---|
3821 |
|
---|
3822 | // refining the merged view cells
|
---|
3823 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
3824 |
|
---|
3825 | //-- stats and visualizations
|
---|
3826 | cout << "finished" << endl;
|
---|
3827 | cout << "refined " << refined << " view cells in "
|
---|
3828 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
3829 |
|
---|
3830 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
3831 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
3832 | }
|
---|
3833 |
|
---|
3834 |
|
---|
3835 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
3836 | const VssRayContainer &rays)
|
---|
3837 | {
|
---|
3838 | if (!ViewCellsConstructed())
|
---|
3839 | {
|
---|
3840 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
3841 | return 0;
|
---|
3842 | }
|
---|
3843 |
|
---|
3844 |
|
---|
3845 | // view cells already finished before post processing step
|
---|
3846 | // (i.e. because they were loaded)
|
---|
3847 | if (mViewCellsFinished)
|
---|
3848 | {
|
---|
3849 | FinalizeViewCells(true);
|
---|
3850 | EvaluateViewCellsStats();
|
---|
3851 |
|
---|
3852 | return 0;
|
---|
3853 | }
|
---|
3854 |
|
---|
3855 | // check if new view cells turned invalid
|
---|
3856 | int minPvs, maxPvs;
|
---|
3857 |
|
---|
3858 | if (0)
|
---|
3859 | {
|
---|
3860 | minPvs = mMinPvsSize;
|
---|
3861 | maxPvs = mMaxPvsSize;
|
---|
3862 | }
|
---|
3863 | else
|
---|
3864 | {
|
---|
3865 | // problem matt: why did I start here from zero?
|
---|
3866 | minPvs = 0;
|
---|
3867 | maxPvs = mMaxPvsSize;
|
---|
3868 | }
|
---|
3869 |
|
---|
3870 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
3871 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
3872 |
|
---|
3873 | SetValidity(minPvs, maxPvs);
|
---|
3874 |
|
---|
3875 | // update valid view space according to valid view cells
|
---|
3876 | if (0) mVspBspTree->ValidateTree();
|
---|
3877 |
|
---|
3878 | // area has to be recomputed
|
---|
3879 | mTotalAreaValid = false;
|
---|
3880 | VssRayContainer postProcessRays;
|
---|
3881 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
3882 |
|
---|
3883 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
3884 |
|
---|
3885 | // should maybe be done here to allow merge working
|
---|
3886 | // with area or volume and to correct the rendering statistics
|
---|
3887 | if (0) FinalizeViewCells(false);
|
---|
3888 |
|
---|
3889 | //////////////////////////////////////
|
---|
3890 | //-- merge the individual view cells
|
---|
3891 | MergeViewCells(postProcessRays, objects);
|
---|
3892 |
|
---|
3893 | /////////////////////////////////
|
---|
3894 | //-- refines the merged view cells
|
---|
3895 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
3896 |
|
---|
3897 | ///////////////////////////////////////////
|
---|
3898 | //-- render simulation after merge + refine
|
---|
3899 |
|
---|
3900 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
3901 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
3902 | SimulationStatistics ss;
|
---|
3903 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
3904 |
|
---|
3905 | cout << ss << endl;
|
---|
3906 |
|
---|
3907 |
|
---|
3908 | ///////////////////
|
---|
3909 | //-- compression
|
---|
3910 |
|
---|
3911 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
3912 | {
|
---|
3913 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
3914 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
3915 |
|
---|
3916 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
3917 |
|
---|
3918 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
3919 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
3920 | }
|
---|
3921 |
|
---|
3922 |
|
---|
3923 | // collapse sibling leaves that share the same view cell
|
---|
3924 | if (0) mVspBspTree->CollapseTree();
|
---|
3925 |
|
---|
3926 | // recompute view cell list and statistics
|
---|
3927 | ResetViewCells();
|
---|
3928 |
|
---|
3929 | // compute final meshes and volume / area
|
---|
3930 | if (1) FinalizeViewCells(true);
|
---|
3931 |
|
---|
3932 | // write view cells to disc
|
---|
3933 | if (mExportViewCells)
|
---|
3934 | {
|
---|
3935 | char filename[100];
|
---|
3936 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
3937 | ExportViewCells(filename, mExportPvs, objects);
|
---|
3938 | }
|
---|
3939 |
|
---|
3940 | return 0;
|
---|
3941 | }
|
---|
3942 |
|
---|
3943 |
|
---|
3944 | int VspBspViewCellsManager::GetType() const
|
---|
3945 | {
|
---|
3946 | return VSP_BSP;
|
---|
3947 | }
|
---|
3948 |
|
---|
3949 |
|
---|
3950 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
3951 | {
|
---|
3952 | // terminate recursion
|
---|
3953 | if (root->IsLeaf())
|
---|
3954 | {
|
---|
3955 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
3956 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
3957 | return leaf->GetViewCell();
|
---|
3958 | }
|
---|
3959 |
|
---|
3960 |
|
---|
3961 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
3962 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
3963 |
|
---|
3964 | // evaluate merge cost for priority traversal
|
---|
3965 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
3966 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
3967 |
|
---|
3968 | float volume = 0;
|
---|
3969 |
|
---|
3970 | BspNode *front = interior->GetFront();
|
---|
3971 | BspNode *back = interior->GetBack();
|
---|
3972 |
|
---|
3973 |
|
---|
3974 | ObjectPvs frontPvs, backPvs;
|
---|
3975 |
|
---|
3976 | //-- recursivly compute child hierarchies
|
---|
3977 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
3978 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
3979 |
|
---|
3980 |
|
---|
3981 | viewCellInterior->SetupChildLink(backVc);
|
---|
3982 | viewCellInterior->SetupChildLink(frontVc);
|
---|
3983 |
|
---|
3984 | volume += backVc->GetVolume();
|
---|
3985 | volume += frontVc->GetVolume();
|
---|
3986 |
|
---|
3987 | viewCellInterior->SetVolume(volume);
|
---|
3988 |
|
---|
3989 | return viewCellInterior;
|
---|
3990 | }
|
---|
3991 |
|
---|
3992 |
|
---|
3993 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
3994 | {
|
---|
3995 | if (!ViewCellsConstructed())
|
---|
3996 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
3997 |
|
---|
3998 | // TODO: set reasonable limit
|
---|
3999 | const int limit = 20;
|
---|
4000 |
|
---|
4001 | for (int i = 0; i < limit; ++ i)
|
---|
4002 | {
|
---|
4003 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
4004 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
4005 | {
|
---|
4006 | return true;
|
---|
4007 | }
|
---|
4008 | }
|
---|
4009 |
|
---|
4010 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
4011 | return false;
|
---|
4012 | }
|
---|
4013 |
|
---|
4014 |
|
---|
4015 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
4016 | {
|
---|
4017 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
4018 | // validy update in preprocessor for all managers)
|
---|
4019 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
4020 |
|
---|
4021 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
4022 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
4023 | }
|
---|
4024 |
|
---|
4025 |
|
---|
4026 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
4027 | const VssRayContainer &sampleRays)
|
---|
4028 | {
|
---|
4029 | if (!ViewCellsConstructed())
|
---|
4030 | return;
|
---|
4031 |
|
---|
4032 | VssRayContainer visRays;
|
---|
4033 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
4034 |
|
---|
4035 | //-- export final view cell partition
|
---|
4036 |
|
---|
4037 | if (0)
|
---|
4038 | {
|
---|
4039 | // hack pvs
|
---|
4040 | //const int savedColorCode = mColorCode;
|
---|
4041 | //mColorCode = 1;
|
---|
4042 |
|
---|
4043 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
4044 |
|
---|
4045 | if (exporter)
|
---|
4046 | {
|
---|
4047 | cout << "exporting view cells after post process ... ";
|
---|
4048 |
|
---|
4049 | if (0)
|
---|
4050 | {
|
---|
4051 | // export view space box
|
---|
4052 | exporter->SetWireframe();
|
---|
4053 | exporter->ExportBox(mViewSpaceBox);
|
---|
4054 | exporter->SetFilled();
|
---|
4055 | }
|
---|
4056 |
|
---|
4057 | Material m;
|
---|
4058 |
|
---|
4059 | m.mDiffuseColor.r = 0.0f;
|
---|
4060 | m.mDiffuseColor.g = 0.5f;
|
---|
4061 | m.mDiffuseColor.b = 0.5f;
|
---|
4062 |
|
---|
4063 | exporter->SetForcedMaterial(m);
|
---|
4064 |
|
---|
4065 | if (0 && mExportGeometry)
|
---|
4066 | {
|
---|
4067 | exporter->ExportGeometry(objects);
|
---|
4068 | }
|
---|
4069 |
|
---|
4070 | // export rays
|
---|
4071 | if (0 && mExportRays)
|
---|
4072 | {
|
---|
4073 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
4074 | }
|
---|
4075 |
|
---|
4076 | //exporter->SetFilled();
|
---|
4077 |
|
---|
4078 | // HACK: export without clip plane
|
---|
4079 | const bool b = mUseClipPlaneForViz;
|
---|
4080 | //mUseClipPlaneForViz = false;
|
---|
4081 |
|
---|
4082 | ExportViewCellsForViz(exporter);
|
---|
4083 |
|
---|
4084 | mUseClipPlaneForViz = b;
|
---|
4085 | delete exporter;
|
---|
4086 |
|
---|
4087 | cout << "finished" << endl;
|
---|
4088 | }
|
---|
4089 |
|
---|
4090 | //mColorCode = savedColorCode;
|
---|
4091 | }
|
---|
4092 |
|
---|
4093 |
|
---|
4094 | if (0)
|
---|
4095 | {
|
---|
4096 | cout << "exporting depth map ... ";
|
---|
4097 |
|
---|
4098 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
4099 | if (exporter)
|
---|
4100 | {
|
---|
4101 | if (1)
|
---|
4102 | {
|
---|
4103 | exporter->SetWireframe();
|
---|
4104 | exporter->ExportBox(mViewSpaceBox);
|
---|
4105 | exporter->SetFilled();
|
---|
4106 | }
|
---|
4107 |
|
---|
4108 | if (mExportGeometry)
|
---|
4109 | {
|
---|
4110 | exporter->ExportGeometry(objects);
|
---|
4111 | }
|
---|
4112 |
|
---|
4113 | const int maxDepth = mVspBspTree->GetStatistics().maxDepth;
|
---|
4114 |
|
---|
4115 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
4116 |
|
---|
4117 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
4118 | {
|
---|
4119 | ViewCell *vc = *vit;
|
---|
4120 |
|
---|
4121 | ViewCellContainer leaves;
|
---|
4122 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
4123 |
|
---|
4124 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
4125 |
|
---|
4126 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
4127 | {
|
---|
4128 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
4129 |
|
---|
4130 | Material m;
|
---|
4131 |
|
---|
4132 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
4133 | m.mDiffuseColor.r = relDepth;
|
---|
4134 | m.mDiffuseColor.g = 0.0f;
|
---|
4135 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
4136 |
|
---|
4137 | exporter->SetForcedMaterial(m);
|
---|
4138 |
|
---|
4139 |
|
---|
4140 | BspNodeGeometry geom;
|
---|
4141 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
4142 | exporter->ExportPolygons(geom.GetPolys());
|
---|
4143 | }
|
---|
4144 | }
|
---|
4145 |
|
---|
4146 | delete exporter;
|
---|
4147 | }
|
---|
4148 |
|
---|
4149 |
|
---|
4150 | cout << "finished" << endl;
|
---|
4151 | }
|
---|
4152 |
|
---|
4153 | //-- visualization of the BSP splits
|
---|
4154 | bool exportSplits = false;
|
---|
4155 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
4156 |
|
---|
4157 | if (exportSplits)
|
---|
4158 | {
|
---|
4159 | cout << "exporting splits ... ";
|
---|
4160 | ExportSplits(objects, visRays);
|
---|
4161 | cout << "finished" << endl;
|
---|
4162 | }
|
---|
4163 |
|
---|
4164 | //-- export single view cells
|
---|
4165 | ExportBspPvs(objects, visRays);
|
---|
4166 | }
|
---|
4167 |
|
---|
4168 |
|
---|
4169 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
4170 | const VssRayContainer &rays)
|
---|
4171 | {
|
---|
4172 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
4173 |
|
---|
4174 | if (exporter)
|
---|
4175 | {
|
---|
4176 | Material m;
|
---|
4177 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
4178 | exporter->SetForcedMaterial(m);
|
---|
4179 | exporter->SetWireframe();
|
---|
4180 |
|
---|
4181 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
4182 |
|
---|
4183 | // take forced material, else big scenes cannot be viewed
|
---|
4184 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
4185 | exporter->SetForcedMaterial(m);
|
---|
4186 | exporter->SetFilled();
|
---|
4187 |
|
---|
4188 | exporter->ResetForcedMaterial();
|
---|
4189 |
|
---|
4190 | // export rays
|
---|
4191 | if (mExportRays)
|
---|
4192 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
4193 |
|
---|
4194 | if (mExportGeometry)
|
---|
4195 | exporter->ExportGeometry(objects);
|
---|
4196 |
|
---|
4197 | delete exporter;
|
---|
4198 | }
|
---|
4199 | }
|
---|
4200 |
|
---|
4201 |
|
---|
4202 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
4203 | const VssRayContainer &rays)
|
---|
4204 | {
|
---|
4205 | int leafOut;
|
---|
4206 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
4207 |
|
---|
4208 | ViewCell::NewMail();
|
---|
4209 |
|
---|
4210 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
4211 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
4212 | Debug << "\nOutput view cells: " << endl;
|
---|
4213 |
|
---|
4214 | const bool sortViewCells = true;
|
---|
4215 |
|
---|
4216 | // sort view cells to visualize the largest view cells
|
---|
4217 | if (sortViewCells)
|
---|
4218 | {
|
---|
4219 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
4220 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
4221 | }
|
---|
4222 |
|
---|
4223 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
4224 |
|
---|
4225 | int raysOut = 0;
|
---|
4226 |
|
---|
4227 | //-- some rays for output
|
---|
4228 | for (int i = 0; i < limit; ++ i)
|
---|
4229 | {
|
---|
4230 | cout << "creating output for view cell " << i << " ... ";
|
---|
4231 |
|
---|
4232 | ViewCell *vc;
|
---|
4233 |
|
---|
4234 | if (sortViewCells) // largest view cell pvs first
|
---|
4235 | vc = mViewCells[i];
|
---|
4236 | else
|
---|
4237 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
4238 |
|
---|
4239 | ObjectPvs pvs;
|
---|
4240 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
4241 |
|
---|
4242 | //bspLeaves[j]->Mail();
|
---|
4243 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
4244 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
4245 |
|
---|
4246 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
4247 |
|
---|
4248 | //-- export the sample rays
|
---|
4249 | if (mExportRays)
|
---|
4250 | {
|
---|
4251 | // output rays stored with the view cells during subdivision
|
---|
4252 | if (1)
|
---|
4253 | {
|
---|
4254 | VssRayContainer vcRays;
|
---|
4255 | VssRayContainer collectRays;
|
---|
4256 |
|
---|
4257 | raysOut = min((int)rays.size(), 100);
|
---|
4258 |
|
---|
4259 | // collect intial view cells
|
---|
4260 | ViewCellContainer leaves;
|
---|
4261 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
4262 |
|
---|
4263 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
4264 |
|
---|
4265 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
4266 | {
|
---|
4267 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
4268 |
|
---|
4269 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
4270 |
|
---|
4271 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
4272 | {
|
---|
4273 | collectRays.push_back(*rit);
|
---|
4274 | }
|
---|
4275 | }
|
---|
4276 |
|
---|
4277 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
4278 |
|
---|
4279 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
4280 | {
|
---|
4281 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
4282 |
|
---|
4283 | if (p < raysOut)
|
---|
4284 | vcRays.push_back(*rit);
|
---|
4285 | }
|
---|
4286 |
|
---|
4287 | //Debug << "#rays: " << (int)vcRays.size() << endl;
|
---|
4288 |
|
---|
4289 | //-- export rays piercing this view cell
|
---|
4290 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
4291 | }
|
---|
4292 |
|
---|
4293 | // associate new rays with output view cell
|
---|
4294 | if (0)
|
---|
4295 | {
|
---|
4296 | VssRayContainer vcRays;
|
---|
4297 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
4298 |
|
---|
4299 | // check whether we can add the current ray to the output rays
|
---|
4300 | for (int k = 0; k < raysOut; ++ k)
|
---|
4301 | {
|
---|
4302 | VssRay *ray = rays[k];
|
---|
4303 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
4304 | {
|
---|
4305 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
4306 |
|
---|
4307 | if (rayvc == vc)
|
---|
4308 | vcRays.push_back(ray);
|
---|
4309 | }
|
---|
4310 | }
|
---|
4311 |
|
---|
4312 | //-- export rays piercing this view cell
|
---|
4313 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
4314 | }
|
---|
4315 |
|
---|
4316 | }
|
---|
4317 |
|
---|
4318 |
|
---|
4319 | //-- export view cell geometry
|
---|
4320 | exporter->SetWireframe();
|
---|
4321 |
|
---|
4322 | Material m;//= RandomMaterial();
|
---|
4323 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
4324 | exporter->SetForcedMaterial(m);
|
---|
4325 |
|
---|
4326 | ExportViewCellGeometry(exporter, vc);
|
---|
4327 |
|
---|
4328 | exporter->SetFilled();
|
---|
4329 |
|
---|
4330 |
|
---|
4331 | //-- export pvs
|
---|
4332 | if (1)
|
---|
4333 | {
|
---|
4334 | ObjectPvsMap::const_iterator oit,
|
---|
4335 | oit_end = pvs.mEntries.end();
|
---|
4336 |
|
---|
4337 | Intersectable::NewMail();
|
---|
4338 |
|
---|
4339 | // output PVS of view cell
|
---|
4340 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
4341 | {
|
---|
4342 | Intersectable *intersect = (*oit).first;
|
---|
4343 |
|
---|
4344 | if (!intersect->Mailed())
|
---|
4345 | {
|
---|
4346 | m = RandomMaterial();
|
---|
4347 | exporter->SetForcedMaterial(m);
|
---|
4348 |
|
---|
4349 | exporter->ExportIntersectable(intersect);
|
---|
4350 | intersect->Mail();
|
---|
4351 | }
|
---|
4352 | }
|
---|
4353 | }
|
---|
4354 |
|
---|
4355 | if (0)
|
---|
4356 | { // export scene geometry
|
---|
4357 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
4358 | exporter->SetForcedMaterial(m);
|
---|
4359 |
|
---|
4360 | exporter->ExportGeometry(objects);
|
---|
4361 | }
|
---|
4362 |
|
---|
4363 | DEL_PTR(exporter);
|
---|
4364 | cout << "finished" << endl;
|
---|
4365 | }
|
---|
4366 |
|
---|
4367 | Debug << endl;
|
---|
4368 | }
|
---|
4369 |
|
---|
4370 |
|
---|
4371 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
4372 | {
|
---|
4373 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
4374 |
|
---|
4375 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
4376 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
4377 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
4378 | const Vector3 width = Vector3(w);
|
---|
4379 |
|
---|
4380 | PrVs testPrVs;
|
---|
4381 |
|
---|
4382 | if (exporter)
|
---|
4383 | {
|
---|
4384 | ViewCellContainer viewCells;
|
---|
4385 |
|
---|
4386 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
4387 |
|
---|
4388 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
4389 |
|
---|
4390 | exporter->SetWireframe();
|
---|
4391 |
|
---|
4392 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
4393 | exporter->ExportBox(tbox);
|
---|
4394 |
|
---|
4395 | exporter->SetFilled();
|
---|
4396 |
|
---|
4397 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
4398 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
4399 |
|
---|
4400 | //exporter->ResetForcedMaterial();
|
---|
4401 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
4402 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
4403 |
|
---|
4404 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
4405 | exporter->ExportGeometry(objects);
|
---|
4406 |
|
---|
4407 | delete exporter;
|
---|
4408 | }
|
---|
4409 | }
|
---|
4410 |
|
---|
4411 |
|
---|
4412 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
4413 | ViewCellContainer &viewCells) const
|
---|
4414 | {
|
---|
4415 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
4416 | }
|
---|
4417 |
|
---|
4418 |
|
---|
4419 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
4420 | const Vector3 &termination,
|
---|
4421 | ViewCellContainer &viewcells)
|
---|
4422 | {
|
---|
4423 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
4424 | }
|
---|
4425 |
|
---|
4426 |
|
---|
4427 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
4428 | {
|
---|
4429 | int numSamples;
|
---|
4430 |
|
---|
4431 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
4432 | cout << "samples" << numSamples << endl;
|
---|
4433 |
|
---|
4434 | vector<RenderCostSample> samples;
|
---|
4435 |
|
---|
4436 | if (!mPreprocessor->GetRenderer())
|
---|
4437 | return;
|
---|
4438 |
|
---|
4439 | //start the view point queries
|
---|
4440 | long startTime = GetTime();
|
---|
4441 | cout << "starting sampling of render cost ... ";
|
---|
4442 |
|
---|
4443 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
4444 |
|
---|
4445 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
4446 |
|
---|
4447 |
|
---|
4448 | // for each sample:
|
---|
4449 | // find view cells associated with the samples
|
---|
4450 | // store the sample pvs with the pvs associated with the view cell
|
---|
4451 | //
|
---|
4452 | // for each view cell:
|
---|
4453 | // compute difference point sampled pvs - view cell pvs
|
---|
4454 | // export geometry with color coded pvs difference
|
---|
4455 |
|
---|
4456 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
4457 |
|
---|
4458 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
4459 |
|
---|
4460 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
4461 | {
|
---|
4462 | RenderCostSample sample = *rit;
|
---|
4463 |
|
---|
4464 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
4465 |
|
---|
4466 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
4467 |
|
---|
4468 | if (it == sampleMap.end())
|
---|
4469 | {
|
---|
4470 | sampleMap[vc] = sample.mPvs;
|
---|
4471 | }
|
---|
4472 | else
|
---|
4473 | {
|
---|
4474 | (*it).second.Merge(sample.mPvs);
|
---|
4475 | }
|
---|
4476 | }
|
---|
4477 |
|
---|
4478 | // visualize the view cells
|
---|
4479 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
4480 |
|
---|
4481 | Material m;//= RandomMaterial();
|
---|
4482 |
|
---|
4483 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
4484 | {
|
---|
4485 | ViewCell *vc = (*vit).first;
|
---|
4486 |
|
---|
4487 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
4488 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
4489 |
|
---|
4490 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
4491 | m.mDiffuseColor.b = 1.0f;
|
---|
4492 | //exporter->SetForcedMaterial(m);
|
---|
4493 | //ExportViewCellGeometry(exporter, vc, mClipPlane);
|
---|
4494 |
|
---|
4495 | /* // counting the pvss
|
---|
4496 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
4497 | {
|
---|
4498 | RenderCostSample sample = *rit;
|
---|
4499 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
4500 |
|
---|
4501 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
4502 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
4503 |
|
---|
4504 | DEL_PTR(hMesh);
|
---|
4505 | }
|
---|
4506 | */
|
---|
4507 | }
|
---|
4508 | }
|
---|
4509 |
|
---|
4510 |
|
---|
4511 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
4512 | ViewCell *vc,
|
---|
4513 | const AxisAlignedPlane *clipPlane) const
|
---|
4514 | {
|
---|
4515 | if (clipPlane)
|
---|
4516 | {
|
---|
4517 | const Plane3 plane = clipPlane->GetPlane();
|
---|
4518 |
|
---|
4519 | ViewCellContainer leaves;
|
---|
4520 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
4521 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
4522 |
|
---|
4523 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
4524 | {
|
---|
4525 | BspNodeGeometry geom;
|
---|
4526 |
|
---|
4527 | BspNodeGeometry front;
|
---|
4528 | BspNodeGeometry back;
|
---|
4529 |
|
---|
4530 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
4531 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
4532 |
|
---|
4533 | const float eps = 0.0001f;
|
---|
4534 | const int cf = geom.Side(plane, eps);
|
---|
4535 |
|
---|
4536 | if (cf == -1)
|
---|
4537 | {
|
---|
4538 | exporter->ExportPolygons(geom.GetPolys());
|
---|
4539 | }
|
---|
4540 | else if (cf == 0)
|
---|
4541 | {
|
---|
4542 | geom.SplitGeometry(front,
|
---|
4543 | back,
|
---|
4544 | plane,
|
---|
4545 | mViewSpaceBox,
|
---|
4546 | eps);
|
---|
4547 |
|
---|
4548 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
4549 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
4550 |
|
---|
4551 | if (back.Valid())
|
---|
4552 | {
|
---|
4553 | exporter->ExportPolygons(back.GetPolys());
|
---|
4554 | }
|
---|
4555 | }
|
---|
4556 | }
|
---|
4557 | }
|
---|
4558 | else
|
---|
4559 | {
|
---|
4560 | // export mesh if available
|
---|
4561 | // TODO: some bug here?
|
---|
4562 | if (0 && vc->GetMesh())
|
---|
4563 | {
|
---|
4564 | exporter->ExportMesh(vc->GetMesh());
|
---|
4565 | }
|
---|
4566 | else
|
---|
4567 | {
|
---|
4568 | BspNodeGeometry geom;
|
---|
4569 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
4570 | exporter->ExportPolygons(geom.GetPolys());
|
---|
4571 | }
|
---|
4572 | }
|
---|
4573 | }
|
---|
4574 |
|
---|
4575 |
|
---|
4576 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
4577 | {
|
---|
4578 | ViewCellContainer leaves;
|
---|
4579 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
4580 |
|
---|
4581 | int maxDist = 0;
|
---|
4582 |
|
---|
4583 | // compute max height difference
|
---|
4584 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
4585 | {
|
---|
4586 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
4587 | {
|
---|
4588 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
4589 |
|
---|
4590 | if (i != j)
|
---|
4591 | {
|
---|
4592 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
4593 |
|
---|
4594 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
4595 |
|
---|
4596 | if (dist > maxDist)
|
---|
4597 | maxDist = dist;
|
---|
4598 | }
|
---|
4599 | }
|
---|
4600 | }
|
---|
4601 |
|
---|
4602 | return maxDist;
|
---|
4603 | }
|
---|
4604 |
|
---|
4605 |
|
---|
4606 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
4607 | {
|
---|
4608 | if (!ViewCellsConstructed())
|
---|
4609 | return NULL;
|
---|
4610 |
|
---|
4611 | if (!mViewSpaceBox.IsInside(point))
|
---|
4612 | return NULL;
|
---|
4613 |
|
---|
4614 | return mVspBspTree->GetViewCell(point, active);
|
---|
4615 | }
|
---|
4616 |
|
---|
4617 |
|
---|
4618 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
4619 | {
|
---|
4620 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
4621 | BspNodeGeometry geom;
|
---|
4622 |
|
---|
4623 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
4624 |
|
---|
4625 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
4626 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
4627 |
|
---|
4628 | vc->SetMesh(mesh);
|
---|
4629 | }
|
---|
4630 |
|
---|
4631 |
|
---|
4632 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
4633 | {
|
---|
4634 | return mVspBspTree->CastBeam(beam);
|
---|
4635 | }
|
---|
4636 |
|
---|
4637 |
|
---|
4638 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
4639 | const bool createMesh)
|
---|
4640 | {
|
---|
4641 | float area = 0;
|
---|
4642 | float volume = 0;
|
---|
4643 |
|
---|
4644 | ViewCellContainer leaves;
|
---|
4645 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
4646 |
|
---|
4647 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
4648 |
|
---|
4649 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
4650 | {
|
---|
4651 | BspNodeGeometry geom;
|
---|
4652 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
4653 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
4654 |
|
---|
4655 | const float lVol = geom.GetVolume();
|
---|
4656 | const float lArea = geom.GetArea();
|
---|
4657 |
|
---|
4658 | //(*it)->SetVolume(vol);
|
---|
4659 | //(*it)->SetArea(area);
|
---|
4660 |
|
---|
4661 | area += lArea;
|
---|
4662 | volume += lVol;
|
---|
4663 |
|
---|
4664 | CreateMesh(*it);
|
---|
4665 | }
|
---|
4666 |
|
---|
4667 | viewCell->SetVolume(volume);
|
---|
4668 | viewCell->SetArea(area);
|
---|
4669 | }
|
---|
4670 |
|
---|
4671 |
|
---|
4672 | void VspBspViewCellsManager::TestSubdivision()
|
---|
4673 | {
|
---|
4674 | ViewCellContainer leaves;
|
---|
4675 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
4676 |
|
---|
4677 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
4678 |
|
---|
4679 | const float vol = mViewSpaceBox.GetVolume();
|
---|
4680 | float subdivVol = 0;
|
---|
4681 | float newVol = 0;
|
---|
4682 |
|
---|
4683 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
4684 | {
|
---|
4685 | BspNodeGeometry geom;
|
---|
4686 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
4687 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
4688 |
|
---|
4689 | const float lVol = geom.GetVolume();
|
---|
4690 |
|
---|
4691 | newVol += lVol;
|
---|
4692 | subdivVol += (*it)->GetVolume();
|
---|
4693 |
|
---|
4694 | float thres = 0.9f;
|
---|
4695 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
4696 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
4697 | }
|
---|
4698 |
|
---|
4699 | Debug << "exact volume: " << vol << endl;
|
---|
4700 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
4701 | Debug << "new volume: " << newVol << endl;
|
---|
4702 | }
|
---|
4703 |
|
---|
4704 |
|
---|
4705 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
4706 | {
|
---|
4707 | // TODO: do I still need this here?
|
---|
4708 | if (0)
|
---|
4709 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
4710 | }
|
---|
4711 |
|
---|
4712 |
|
---|
4713 |
|
---|
4714 | /**************************************************************************/
|
---|
4715 | /* VspOspViewCellsManager implementation */
|
---|
4716 | /**************************************************************************/
|
---|
4717 |
|
---|
4718 |
|
---|
4719 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
4720 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
4721 | {
|
---|
4722 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
4723 |
|
---|
4724 | mHierarchyManager->SetViewCellsManager(this);
|
---|
4725 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
4726 | }
|
---|
4727 |
|
---|
4728 |
|
---|
4729 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
4730 | {
|
---|
4731 | }
|
---|
4732 |
|
---|
4733 |
|
---|
4734 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
4735 | {
|
---|
4736 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
4737 | }
|
---|
4738 |
|
---|
4739 |
|
---|
4740 | void VspOspViewCellsManager::CollectViewCells()
|
---|
4741 | {
|
---|
4742 | // view cells tree constructed
|
---|
4743 | if (!ViewCellsTreeConstructed())
|
---|
4744 | {
|
---|
4745 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
4746 | }
|
---|
4747 | else
|
---|
4748 | { // we can use the view cells tree hierarchy to get the right set
|
---|
4749 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
4750 | }
|
---|
4751 | }
|
---|
4752 |
|
---|
4753 |
|
---|
4754 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
4755 | {
|
---|
4756 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
4757 | }
|
---|
4758 |
|
---|
4759 |
|
---|
4760 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
4761 | {
|
---|
4762 | return new VspViewCell(mesh);
|
---|
4763 | }
|
---|
4764 |
|
---|
4765 |
|
---|
4766 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
4767 | const VssRayContainer &rays)
|
---|
4768 | {
|
---|
4769 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
4770 |
|
---|
4771 | // skip rest if view cells were already constructed
|
---|
4772 | if (ViewCellsConstructed())
|
---|
4773 | return 0;
|
---|
4774 |
|
---|
4775 | int sampleContributions = 0;
|
---|
4776 |
|
---|
4777 | VssRayContainer sampleRays;
|
---|
4778 |
|
---|
4779 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
4780 |
|
---|
4781 | VssRayContainer constructionRays;
|
---|
4782 | VssRayContainer savedRays;
|
---|
4783 |
|
---|
4784 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
4785 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
4786 |
|
---|
4787 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
4788 |
|
---|
4789 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
4790 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
4791 |
|
---|
4792 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
4793 |
|
---|
4794 | VssRayContainer::const_iterator vit, vit_end = constructionRays.end();
|
---|
4795 |
|
---|
4796 | for (vit = constructionRays.begin(); vit != vit_end; ++ vit)
|
---|
4797 | {
|
---|
4798 | storedRays.push_back(new VssRay(*(*vit)));
|
---|
4799 | }
|
---|
4800 |
|
---|
4801 | // print subdivision statistics
|
---|
4802 | Debug << endl << endl;
|
---|
4803 | mHierarchyManager->PrintHierarchyStatistics(Debug);
|
---|
4804 |
|
---|
4805 | if (0)
|
---|
4806 | {
|
---|
4807 | OUT_STREAM stream("osptree.xml.zip");
|
---|
4808 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
4809 | }
|
---|
4810 |
|
---|
4811 | // print view cell statistics
|
---|
4812 | ResetViewCells();
|
---|
4813 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
4814 |
|
---|
4815 |
|
---|
4816 | const long startTime = GetTime();
|
---|
4817 | cout << "Computing remaining ray contributions ... ";
|
---|
4818 |
|
---|
4819 | // recast rest of rays
|
---|
4820 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
4821 | ComputeSampleContributions(savedRays, true, false);
|
---|
4822 |
|
---|
4823 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
4824 | << " secs" << endl;
|
---|
4825 |
|
---|
4826 | if (0)
|
---|
4827 | {
|
---|
4828 | // real meshes are constructed at this stage
|
---|
4829 | cout << "finalizing view cells ... ";
|
---|
4830 | FinalizeViewCells(true);
|
---|
4831 | cout << "finished" << endl;
|
---|
4832 | }
|
---|
4833 |
|
---|
4834 | return sampleContributions;
|
---|
4835 | }
|
---|
4836 |
|
---|
4837 |
|
---|
4838 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
4839 | const VssRayContainer &rays)
|
---|
4840 | {
|
---|
4841 | if (!ViewCellsConstructed())
|
---|
4842 | {
|
---|
4843 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
4844 | return 0;
|
---|
4845 | }
|
---|
4846 |
|
---|
4847 |
|
---|
4848 | // take this step only if
|
---|
4849 | // view cells already constructed before post processing step
|
---|
4850 | // (e.g., because they were loaded)
|
---|
4851 | if (mViewCellsFinished)
|
---|
4852 | {
|
---|
4853 | FinalizeViewCells(true);
|
---|
4854 | EvaluateViewCellsStats();
|
---|
4855 |
|
---|
4856 | return 0;
|
---|
4857 | }
|
---|
4858 |
|
---|
4859 | // check if new view cells turned invalid
|
---|
4860 | int minPvs, maxPvs;
|
---|
4861 |
|
---|
4862 | if (0)
|
---|
4863 | {
|
---|
4864 | minPvs = mMinPvsSize;
|
---|
4865 | maxPvs = mMaxPvsSize;
|
---|
4866 | }
|
---|
4867 | else
|
---|
4868 | {
|
---|
4869 | // problem matt: why did I start here from zero?
|
---|
4870 | minPvs = 0;
|
---|
4871 | maxPvs = mMaxPvsSize;
|
---|
4872 | }
|
---|
4873 |
|
---|
4874 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
4875 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
4876 |
|
---|
4877 | SetValidity(minPvs, maxPvs);
|
---|
4878 |
|
---|
4879 |
|
---|
4880 | // area is not up to date, has to be recomputed
|
---|
4881 | mTotalAreaValid = false;
|
---|
4882 | VssRayContainer postProcessRays;
|
---|
4883 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
4884 |
|
---|
4885 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
4886 |
|
---|
4887 |
|
---|
4888 | // should maybe be done here to allow merge working with area or volume
|
---|
4889 | // and to correct the rendering statistics
|
---|
4890 | if (0) FinalizeViewCells(false);
|
---|
4891 |
|
---|
4892 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
4893 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
4894 | mViewCellsTree->SetRoot(root);
|
---|
4895 |
|
---|
4896 | ////////////////////////////////////
|
---|
4897 | //-- update pvs in the whole hierarchy
|
---|
4898 | ObjectPvs pvs;
|
---|
4899 | UpdatePvsForEvaluation(root, pvs);
|
---|
4900 |
|
---|
4901 |
|
---|
4902 | ///////////////////////////////////////////
|
---|
4903 | //-- render simulation after merge + refine
|
---|
4904 |
|
---|
4905 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
4906 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
4907 | SimulationStatistics ss;
|
---|
4908 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
4909 | cout << ss << endl;
|
---|
4910 |
|
---|
4911 | ///////////////////////
|
---|
4912 | //-- compression
|
---|
4913 |
|
---|
4914 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
4915 | {
|
---|
4916 | int pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
4917 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
4918 |
|
---|
4919 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
4920 |
|
---|
4921 | pvsEntries = mViewCellsTree->GetStoredPvsEntriesNum(mViewCellsTree->GetRoot());
|
---|
4922 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
4923 | }
|
---|
4924 |
|
---|
4925 | /////////////////////////////////////
|
---|
4926 | //-- compute final meshes and volume / area
|
---|
4927 | if (1) FinalizeViewCells(true);
|
---|
4928 |
|
---|
4929 |
|
---|
4930 | // write out view cells
|
---|
4931 | if (mExportViewCells)
|
---|
4932 | {
|
---|
4933 | char filename[100];
|
---|
4934 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
4935 | ExportViewCells(filename, mExportPvs, objects);
|
---|
4936 | }
|
---|
4937 |
|
---|
4938 | return 0;
|
---|
4939 | }
|
---|
4940 |
|
---|
4941 |
|
---|
4942 | int VspOspViewCellsManager::GetType() const
|
---|
4943 | {
|
---|
4944 | return VSP_OSP;
|
---|
4945 | }
|
---|
4946 |
|
---|
4947 |
|
---|
4948 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
4949 | {
|
---|
4950 | // terminate recursion
|
---|
4951 | if (root->IsLeaf())
|
---|
4952 | {
|
---|
4953 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
4954 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
4955 | return leaf->GetViewCell();
|
---|
4956 | }
|
---|
4957 |
|
---|
4958 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
4959 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
4960 |
|
---|
4961 | // evaluate merge cost for priority traversal
|
---|
4962 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
4963 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
4964 |
|
---|
4965 | float volume = 0;
|
---|
4966 |
|
---|
4967 | VspNode *front = interior->GetFront();
|
---|
4968 | VspNode *back = interior->GetBack();
|
---|
4969 |
|
---|
4970 |
|
---|
4971 | ObjectPvs frontPvs, backPvs;
|
---|
4972 |
|
---|
4973 | //-- recursivly compute child hierarchies
|
---|
4974 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
4975 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
4976 |
|
---|
4977 |
|
---|
4978 | viewCellInterior->SetupChildLink(backVc);
|
---|
4979 | viewCellInterior->SetupChildLink(frontVc);
|
---|
4980 |
|
---|
4981 | volume += backVc->GetVolume();
|
---|
4982 | volume += frontVc->GetVolume();
|
---|
4983 |
|
---|
4984 | viewCellInterior->SetVolume(volume);
|
---|
4985 |
|
---|
4986 | return viewCellInterior;
|
---|
4987 | }
|
---|
4988 |
|
---|
4989 |
|
---|
4990 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
4991 | {
|
---|
4992 | if (!ViewCellsConstructed())
|
---|
4993 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
4994 |
|
---|
4995 | // TODO: set reasonable limit
|
---|
4996 | const int limit = 20;
|
---|
4997 |
|
---|
4998 | for (int i = 0; i < limit; ++ i)
|
---|
4999 | {
|
---|
5000 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
5001 |
|
---|
5002 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
5003 | {
|
---|
5004 | return true;
|
---|
5005 | }
|
---|
5006 | }
|
---|
5007 |
|
---|
5008 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
5009 | return false;
|
---|
5010 | }
|
---|
5011 |
|
---|
5012 |
|
---|
5013 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
5014 | ViewCell *vc,
|
---|
5015 | const AxisAlignedPlane *clipPlane) const
|
---|
5016 | {
|
---|
5017 | ViewCellContainer leaves;
|
---|
5018 |
|
---|
5019 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
5020 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
5021 |
|
---|
5022 | Plane3 plane;
|
---|
5023 |
|
---|
5024 | if (clipPlane)
|
---|
5025 | {
|
---|
5026 | plane = clipPlane->GetPlane();
|
---|
5027 | }
|
---|
5028 |
|
---|
5029 | AxisAlignedBox3 bbox = GetViewSpaceBox();
|
---|
5030 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
5031 |
|
---|
5032 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
5033 | {
|
---|
5034 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
5035 | VspLeaf *l = vspVc->mLeaf;
|
---|
5036 |
|
---|
5037 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaf);
|
---|
5038 |
|
---|
5039 | if (!Overlap(box, bbox))
|
---|
5040 | continue;
|
---|
5041 |
|
---|
5042 | if (clipPlane)
|
---|
5043 | {
|
---|
5044 | if (box.Side(plane) == -1)
|
---|
5045 | {
|
---|
5046 | exporter->ExportBox(box);
|
---|
5047 | }
|
---|
5048 | else if (box.Side(plane) == 0)
|
---|
5049 | {
|
---|
5050 | AxisAlignedBox3 fbox, bbox;
|
---|
5051 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
5052 |
|
---|
5053 | exporter->ExportBox(bbox);
|
---|
5054 | }
|
---|
5055 | }
|
---|
5056 | else
|
---|
5057 | {
|
---|
5058 | exporter->ExportBox(box);
|
---|
5059 | }
|
---|
5060 | }
|
---|
5061 | }
|
---|
5062 |
|
---|
5063 |
|
---|
5064 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
5065 | {
|
---|
5066 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
5067 | // validy update in preprocessor for all managers)
|
---|
5068 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
5069 |
|
---|
5070 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
5071 | // mVspTree->ViewPointValid(viewPoint);
|
---|
5072 | }
|
---|
5073 |
|
---|
5074 |
|
---|
5075 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
5076 | const VssRayContainer &sampleRays)
|
---|
5077 | {
|
---|
5078 | if (!ViewCellsConstructed())
|
---|
5079 | return;
|
---|
5080 |
|
---|
5081 | VssRayContainer visRays;
|
---|
5082 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
5083 |
|
---|
5084 | if (1)
|
---|
5085 | {
|
---|
5086 | /////////////////////////////
|
---|
5087 | //-- export final view cells
|
---|
5088 |
|
---|
5089 | // hack color code (show pvs size)
|
---|
5090 | const int savedColorCode = mColorCode;
|
---|
5091 | mColorCode = 0;
|
---|
5092 |
|
---|
5093 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
5094 |
|
---|
5095 | if (exporter)
|
---|
5096 | {
|
---|
5097 | const long starttime = GetTime();
|
---|
5098 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
5099 |
|
---|
5100 | if (mExportGeometry)
|
---|
5101 | {
|
---|
5102 | exporter->ExportGeometry(objects, true);
|
---|
5103 | }
|
---|
5104 |
|
---|
5105 | // export rays
|
---|
5106 | if (0 && mExportRays)
|
---|
5107 | {
|
---|
5108 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
5109 | }
|
---|
5110 |
|
---|
5111 | // HACK: export without clip plane
|
---|
5112 | const bool b = mUseClipPlaneForViz;
|
---|
5113 | if (0) mUseClipPlaneForViz = false;
|
---|
5114 |
|
---|
5115 | ExportViewCellsForViz(exporter);
|
---|
5116 |
|
---|
5117 | mUseClipPlaneForViz = b;
|
---|
5118 | delete exporter;
|
---|
5119 |
|
---|
5120 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
5121 | }
|
---|
5122 |
|
---|
5123 | mColorCode = savedColorCode;
|
---|
5124 | }
|
---|
5125 |
|
---|
5126 | if (1)
|
---|
5127 | {
|
---|
5128 | // export final object partition
|
---|
5129 | Exporter *exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
5130 |
|
---|
5131 | if (exporter)
|
---|
5132 | {
|
---|
5133 | const long starttime = GetTime();
|
---|
5134 |
|
---|
5135 | cout << "exporting object space hierarchy ... ";
|
---|
5136 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects);
|
---|
5137 |
|
---|
5138 | delete exporter;
|
---|
5139 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
5140 | }
|
---|
5141 | }
|
---|
5142 |
|
---|
5143 | // export pvss of some view cell
|
---|
5144 | ExportPvs(objects, visRays);
|
---|
5145 | }
|
---|
5146 |
|
---|
5147 |
|
---|
5148 | void VspOspViewCellsManager::ExportPvs(const ObjectContainer &objects,
|
---|
5149 | const VssRayContainer &rays)
|
---|
5150 | {
|
---|
5151 | int leafOut;
|
---|
5152 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
5153 |
|
---|
5154 | ViewCell::NewMail();
|
---|
5155 |
|
---|
5156 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
5157 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
5158 | Debug << "\nOutput view cells: " << endl;
|
---|
5159 |
|
---|
5160 | const bool sortViewCells = true;
|
---|
5161 |
|
---|
5162 | if (sortViewCells)
|
---|
5163 | {
|
---|
5164 | //stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
5165 | // sort view cells to visualize the view cells with highest render cost
|
---|
5166 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
5167 | }
|
---|
5168 |
|
---|
5169 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
5170 | int raysOut = 0;
|
---|
5171 |
|
---|
5172 | ///////////////////////////
|
---|
5173 | //-- some rays for output
|
---|
5174 |
|
---|
5175 | for (int i = 0; i < limit; ++ i)
|
---|
5176 | {
|
---|
5177 | cout << "creating output for view cell " << i << " ... ";
|
---|
5178 |
|
---|
5179 | ViewCell *vc;
|
---|
5180 |
|
---|
5181 | if (sortViewCells) // largest view cell pvs first
|
---|
5182 | vc = mViewCells[i];
|
---|
5183 | else // random view cell
|
---|
5184 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
5185 |
|
---|
5186 | ObjectPvs pvs;
|
---|
5187 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
5188 |
|
---|
5189 | //bspLeaves[j]->Mail();
|
---|
5190 | char s[64]; sprintf(s, "bsp-pvs%04d.wrl", i);
|
---|
5191 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
5192 |
|
---|
5193 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
5194 |
|
---|
5195 | //-- export the sample rays
|
---|
5196 | if (1 || mExportRays)
|
---|
5197 | {
|
---|
5198 | // output rays stored with the view cells during subdivision
|
---|
5199 | if (1)
|
---|
5200 | {
|
---|
5201 | VssRayContainer vcRays;
|
---|
5202 | VssRayContainer collectRays;
|
---|
5203 |
|
---|
5204 | raysOut = min((int)rays.size(), 100);
|
---|
5205 |
|
---|
5206 | // collect intial view cells
|
---|
5207 | ViewCellContainer leaves;
|
---|
5208 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
5209 |
|
---|
5210 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
5211 |
|
---|
5212 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
5213 | {
|
---|
5214 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
|
---|
5215 |
|
---|
5216 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
5217 |
|
---|
5218 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
5219 | {
|
---|
5220 | collectRays.push_back(*rit);
|
---|
5221 | }
|
---|
5222 | }
|
---|
5223 |
|
---|
5224 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
5225 |
|
---|
5226 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
5227 | {
|
---|
5228 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
5229 |
|
---|
5230 | if (p < raysOut)
|
---|
5231 | vcRays.push_back(*rit);
|
---|
5232 | }
|
---|
5233 |
|
---|
5234 | //-- export rays piercing this view cell
|
---|
5235 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
5236 | }
|
---|
5237 |
|
---|
5238 | // associate new rays with output view cell
|
---|
5239 | if (0)
|
---|
5240 | {
|
---|
5241 | VssRayContainer vcRays;
|
---|
5242 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
5243 |
|
---|
5244 | // check whether we can add the current ray to the output rays
|
---|
5245 | for (int k = 0; k < raysOut; ++ k)
|
---|
5246 | {
|
---|
5247 | VssRay *ray = rays[k];
|
---|
5248 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
5249 | {
|
---|
5250 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
5251 |
|
---|
5252 | if (rayvc == vc)
|
---|
5253 | vcRays.push_back(ray);
|
---|
5254 | }
|
---|
5255 | }
|
---|
5256 |
|
---|
5257 | // export rays piercing this view cell
|
---|
5258 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
5259 | }
|
---|
5260 | }
|
---|
5261 |
|
---|
5262 |
|
---|
5263 | /////////////////
|
---|
5264 | //-- export view cell geometry
|
---|
5265 |
|
---|
5266 | exporter->SetWireframe();
|
---|
5267 |
|
---|
5268 | Material m;//= RandomMaterial();
|
---|
5269 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
5270 | exporter->SetForcedMaterial(m);
|
---|
5271 |
|
---|
5272 | ExportViewCellGeometry(exporter, vc);
|
---|
5273 |
|
---|
5274 | exporter->SetFilled();
|
---|
5275 |
|
---|
5276 | #if 0
|
---|
5277 | //////////
|
---|
5278 | //-- export pvs
|
---|
5279 |
|
---|
5280 | Intersectable::NewMail();
|
---|
5281 | KdLeaf::NewMail();
|
---|
5282 |
|
---|
5283 | vector<KdLeaf *> kdLeaves;
|
---|
5284 |
|
---|
5285 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
5286 |
|
---|
5287 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
5288 | {
|
---|
5289 | Intersectable *obj = (*oit).first;
|
---|
5290 |
|
---|
5291 | if (obj->Type() == Intersectable::KD_INTERSECTABLE)
|
---|
5292 | {
|
---|
5293 | m.mDiffuseColor = RgbColor(1, 1, 1);
|
---|
5294 | exporter->SetForcedMaterial(m);
|
---|
5295 |
|
---|
5296 | // export bounding box of node
|
---|
5297 | KdIntersectable *kdObj = dynamic_cast<KdIntersectable *>(obj);
|
---|
5298 | AxisAlignedBox3 box = mOspTree->GetBoundingBox(kdObj->GetItem());
|
---|
5299 |
|
---|
5300 | exporter->SetWireframe();
|
---|
5301 | exporter->ExportBox(box);
|
---|
5302 | exporter->SetFilled();
|
---|
5303 | }
|
---|
5304 |
|
---|
5305 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
5306 | exporter->SetForcedMaterial(m);
|
---|
5307 |
|
---|
5308 | // export pvs entry
|
---|
5309 | if (!obj->Mailed())
|
---|
5310 | {
|
---|
5311 | exporter->ExportIntersectable(obj);
|
---|
5312 | obj->Mail();
|
---|
5313 | }
|
---|
5314 | }
|
---|
5315 | #endif
|
---|
5316 |
|
---|
5317 | DEL_PTR(exporter);
|
---|
5318 | cout << "finished" << endl;
|
---|
5319 | }
|
---|
5320 |
|
---|
5321 | Debug << endl;
|
---|
5322 | }
|
---|
5323 |
|
---|
5324 |
|
---|
5325 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
5326 | ViewCellContainer &viewCells) const
|
---|
5327 | {
|
---|
5328 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
5329 | }
|
---|
5330 |
|
---|
5331 |
|
---|
5332 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
5333 | const Vector3 &termination,
|
---|
5334 | ViewCellContainer &viewcells)
|
---|
5335 | {
|
---|
5336 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
5337 | }
|
---|
5338 |
|
---|
5339 |
|
---|
5340 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
5341 | const bool exportPvs,
|
---|
5342 | const ObjectContainer &objects)
|
---|
5343 | {
|
---|
5344 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
5345 | return false;
|
---|
5346 |
|
---|
5347 | const long starttime = GetTime();
|
---|
5348 | cout << "exporting view cells to xml ... ";
|
---|
5349 |
|
---|
5350 | OUT_STREAM stream(filename.c_str());
|
---|
5351 |
|
---|
5352 | // for output we need unique ids for each view cell
|
---|
5353 | CreateUniqueViewCellIds();
|
---|
5354 |
|
---|
5355 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
5356 | stream << "<VisibilitySolution>" << endl;
|
---|
5357 |
|
---|
5358 |
|
---|
5359 | //////////////////////////////////////////////////////////////
|
---|
5360 | //-- export bounding boxes
|
---|
5361 | //-- The bounding boxes are used to identify
|
---|
5362 | //-- the objects in the rendering engine
|
---|
5363 |
|
---|
5364 | stream << "<BoundingBoxes>" << endl;
|
---|
5365 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
5366 |
|
---|
5367 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
5368 | {
|
---|
5369 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
5370 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
5371 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
5372 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
5373 | }
|
---|
5374 | stream << "</BoundingBoxes>" << endl;
|
---|
5375 |
|
---|
5376 |
|
---|
5377 | //////////////////////////
|
---|
5378 | //-- export the view cells and the pvs
|
---|
5379 |
|
---|
5380 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
5381 |
|
---|
5382 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
5383 | mViewCellsTree->Export(stream, exportPvs);
|
---|
5384 | stream << "</ViewCells>" << endl;
|
---|
5385 |
|
---|
5386 | //////////////////////
|
---|
5387 | //-- export the view space hierarchy
|
---|
5388 |
|
---|
5389 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
5390 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
5391 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
5392 |
|
---|
5393 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
5394 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
5395 |
|
---|
5396 | //////////////////////
|
---|
5397 | //-- export the object space partition
|
---|
5398 |
|
---|
5399 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
5400 |
|
---|
5401 | stream << "</VisibilitySolution>" << endl;
|
---|
5402 | stream.close();
|
---|
5403 |
|
---|
5404 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
5405 | return true;
|
---|
5406 | }
|
---|
5407 |
|
---|
5408 |
|
---|
5409 |
|
---|
5410 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
5411 | const bool active) const
|
---|
5412 | {
|
---|
5413 | if (!ViewCellsConstructed())
|
---|
5414 | return NULL;
|
---|
5415 |
|
---|
5416 | if (!mViewSpaceBox.IsInside(point))
|
---|
5417 | return NULL;
|
---|
5418 |
|
---|
5419 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
5420 | }
|
---|
5421 |
|
---|
5422 |
|
---|
5423 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
5424 | {
|
---|
5425 | // matt: TODO
|
---|
5426 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
5427 |
|
---|
5428 | ViewCellContainer leaves;
|
---|
5429 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
5430 |
|
---|
5431 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
5432 |
|
---|
5433 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
5434 | {
|
---|
5435 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
5436 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
5437 |
|
---|
5438 | IncludeBoxInMesh(box, *mesh);
|
---|
5439 | }
|
---|
5440 |
|
---|
5441 | vc->SetMesh(mesh);
|
---|
5442 | }
|
---|
5443 |
|
---|
5444 |
|
---|
5445 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
5446 | {
|
---|
5447 | // matt: TODO
|
---|
5448 | return 0;
|
---|
5449 | }
|
---|
5450 |
|
---|
5451 |
|
---|
5452 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
5453 | const bool createMesh)
|
---|
5454 | {
|
---|
5455 | float area = 0;
|
---|
5456 | float volume = 0;
|
---|
5457 |
|
---|
5458 | ViewCellContainer leaves;
|
---|
5459 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
5460 |
|
---|
5461 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
5462 |
|
---|
5463 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
5464 | {
|
---|
5465 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaf;
|
---|
5466 |
|
---|
5467 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
5468 |
|
---|
5469 | const float lVol = box.GetVolume();
|
---|
5470 | const float lArea = box.SurfaceArea();
|
---|
5471 |
|
---|
5472 | //(*it)->SetVolume(vol);
|
---|
5473 | //(*it)->SetArea(area);
|
---|
5474 |
|
---|
5475 | area += lArea;
|
---|
5476 | volume += lVol;
|
---|
5477 |
|
---|
5478 | CreateMesh(*it);
|
---|
5479 | }
|
---|
5480 |
|
---|
5481 | viewCell->SetVolume(volume);
|
---|
5482 | viewCell->SetArea(area);
|
---|
5483 | }
|
---|
5484 |
|
---|
5485 |
|
---|
5486 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
5487 | const bool addRays,
|
---|
5488 | const bool storeViewCells)
|
---|
5489 | {
|
---|
5490 | ViewCellContainer viewcells;
|
---|
5491 |
|
---|
5492 | ray.mPvsContribution = 0;
|
---|
5493 | ray.mRelativePvsContribution = 0.0f;
|
---|
5494 |
|
---|
5495 | static Ray hray;
|
---|
5496 | hray.Init(ray);
|
---|
5497 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
5498 | //Ray hray(ray);
|
---|
5499 |
|
---|
5500 | float tmin = 0, tmax = 1.0;
|
---|
5501 |
|
---|
5502 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
5503 | return 0;
|
---|
5504 |
|
---|
5505 | Vector3 origin = hray.Extrap(tmin);
|
---|
5506 | Vector3 termination = hray.Extrap(tmax);
|
---|
5507 |
|
---|
5508 | ViewCell::NewMail();
|
---|
5509 |
|
---|
5510 | // traverse the view space subdivision
|
---|
5511 | CastLineSegment(origin, termination, viewcells);
|
---|
5512 |
|
---|
5513 | if (storeViewCells)
|
---|
5514 | {
|
---|
5515 | // copy viewcells memory efficiently
|
---|
5516 | ray.mViewCells.reserve(viewcells.size());
|
---|
5517 | ray.mViewCells = viewcells;
|
---|
5518 | }
|
---|
5519 |
|
---|
5520 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
5521 |
|
---|
5522 | for (; it != viewcells.end(); ++ it)
|
---|
5523 | {
|
---|
5524 | ViewCell *viewcell = *it;
|
---|
5525 |
|
---|
5526 | if (viewcell->GetValid())
|
---|
5527 | {
|
---|
5528 | // if ray not outside of view space
|
---|
5529 | float contribution;
|
---|
5530 |
|
---|
5531 | if (ray.mTerminationObject)
|
---|
5532 | {
|
---|
5533 | // todo: maybe not correct for kd node pvs
|
---|
5534 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
5535 | ray.mPdf, contribution))
|
---|
5536 | {
|
---|
5537 | ++ ray.mPvsContribution;
|
---|
5538 | }
|
---|
5539 |
|
---|
5540 | ray.mRelativePvsContribution += contribution;
|
---|
5541 | }
|
---|
5542 |
|
---|
5543 | // for directional sampling it is important to count only contributions
|
---|
5544 | // made in one direction!!!
|
---|
5545 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
5546 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
5547 | if (ray.mOriginObject &&
|
---|
5548 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
5549 | ray.mPdf,
|
---|
5550 | contribution))
|
---|
5551 | {
|
---|
5552 | ++ ray.mPvsContribution;
|
---|
5553 | ray.mRelativePvsContribution += contribution;
|
---|
5554 | }
|
---|
5555 | #endif
|
---|
5556 | }
|
---|
5557 | }
|
---|
5558 |
|
---|
5559 | if (!addRays)
|
---|
5560 | return ray.mRelativePvsContribution;
|
---|
5561 |
|
---|
5562 | // sampled objects are stored in the pvs
|
---|
5563 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
5564 | {
|
---|
5565 | ViewCell *viewCell = *it;
|
---|
5566 |
|
---|
5567 | if (!viewCell->GetValid())
|
---|
5568 | break;
|
---|
5569 |
|
---|
5570 | AddSampleToPvs(
|
---|
5571 | ray.mTerminationObject,
|
---|
5572 | ray.mTermination,
|
---|
5573 | viewCell,
|
---|
5574 | ray.mPdf,
|
---|
5575 | ray.mRelativePvsContribution);
|
---|
5576 |
|
---|
5577 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
5578 |
|
---|
5579 | AddSampleToPvs(
|
---|
5580 | ray.mOriginObject,
|
---|
5581 | ray.mOrigin,
|
---|
5582 | viewCell,
|
---|
5583 | ray.mPdf,
|
---|
5584 | ray.mRelativePvsContribution);
|
---|
5585 | #endif
|
---|
5586 | }
|
---|
5587 |
|
---|
5588 | return ray.mRelativePvsContribution;
|
---|
5589 | }
|
---|
5590 |
|
---|
5591 |
|
---|
5592 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
5593 | const Vector3 &hitPoint,
|
---|
5594 | ViewCell *vc,
|
---|
5595 | const float pdf,
|
---|
5596 | float &contribution) const
|
---|
5597 | {
|
---|
5598 | return mHierarchyManager->AddSampleToPvs(obj, hitPoint, vc, pdf, contribution);
|
---|
5599 | }
|
---|
5600 |
|
---|
5601 |
|
---|
5602 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
5603 | {
|
---|
5604 | // TODO
|
---|
5605 | }
|
---|
5606 |
|
---|
5607 |
|
---|
5608 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
5609 | ObjectContainer *objects,
|
---|
5610 | const bool finalizeViewCells,
|
---|
5611 | BoundingBoxConverter *bconverter)
|
---|
5612 |
|
---|
5613 | {
|
---|
5614 | ViewCellsManager *vm =
|
---|
5615 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
5616 | #if 0
|
---|
5617 | // insert scene objects in tree
|
---|
5618 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
5619 | #endif
|
---|
5620 | return vm;
|
---|
5621 | }
|
---|
5622 |
|
---|
5623 |
|
---|
5624 | #if TEST_EVALUATION
|
---|
5625 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
5626 | {
|
---|
5627 | int castSamples = (int)storedRays.size();
|
---|
5628 |
|
---|
5629 | char s[64];
|
---|
5630 | char statsPrefix[100];
|
---|
5631 |
|
---|
5632 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
5633 |
|
---|
5634 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
5635 |
|
---|
5636 | // should directional sampling be used?
|
---|
5637 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
5638 |
|
---|
5639 | cout << "reseting pvs ... ";
|
---|
5640 |
|
---|
5641 | const bool startFromZero = true;
|
---|
5642 |
|
---|
5643 |
|
---|
5644 | // reset pvs and start over from zero
|
---|
5645 | if (startFromZero)
|
---|
5646 | {
|
---|
5647 | mViewCellsTree->ResetPvs();
|
---|
5648 | }
|
---|
5649 | else // start from current sampless
|
---|
5650 | {
|
---|
5651 | // statistics before casting more samples
|
---|
5652 | cout << "compute new statistics ... ";
|
---|
5653 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
5654 | string fName = string(statsPrefix) + string(s);
|
---|
5655 |
|
---|
5656 | mViewCellsTree->ExportStats(fName);
|
---|
5657 | cout << "finished" << endl;
|
---|
5658 | }
|
---|
5659 | cout << "finished" << endl;
|
---|
5660 |
|
---|
5661 | cout << "Evaluating view cell partition ... " << endl;
|
---|
5662 |
|
---|
5663 | VssRayContainer evaluationSamples = storedRays;
|
---|
5664 | const int samplingType = mEvaluationSamplingType;
|
---|
5665 |
|
---|
5666 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
5667 |
|
---|
5668 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
5669 |
|
---|
5670 | cout << "finished" << endl;
|
---|
5671 |
|
---|
5672 | cout << "compute new statistics ... ";
|
---|
5673 | Debug << "compute new statistics ... ";
|
---|
5674 |
|
---|
5675 | // propagate pvs or pvs size information
|
---|
5676 | ObjectPvs pvs;
|
---|
5677 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
5678 |
|
---|
5679 | ///////////////////////////////////////
|
---|
5680 | //-- temporary matt: test render cost
|
---|
5681 |
|
---|
5682 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
5683 | string fileName = string(statsPrefix) + string(s);
|
---|
5684 |
|
---|
5685 | ViewCellContainer leaves;
|
---|
5686 |
|
---|
5687 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
5688 | float rc = 0;
|
---|
5689 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
5690 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
5691 | {
|
---|
5692 | ViewCell *vc = *vit;
|
---|
5693 | int pvs = vc->GetPvs().CountObjectsInPvs();
|
---|
5694 | float vol = vc->GetVolume();
|
---|
5695 | rc += pvs * vol;
|
---|
5696 |
|
---|
5697 | }
|
---|
5698 |
|
---|
5699 | Debug << "\nrendercost hack: " << rc / mHierarchyManager->GetVspTree()->GetBoundingBox().GetVolume() << endl;
|
---|
5700 | mViewCellsTree->ExportStats(fileName);
|
---|
5701 | cout << "finished" << endl;
|
---|
5702 |
|
---|
5703 | disposeRays(evaluationSamples, NULL);
|
---|
5704 | }
|
---|
5705 | #endif
|
---|
5706 |
|
---|
5707 |
|
---|
5708 | }
|
---|