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