1 | #include "SceneGraph.h"
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2 | #include "KdTree.h"
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3 | #include "VssPreprocessor.h"
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4 | #include "X3dExporter.h"
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5 | #include "Environment.h"
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6 | #include "MutualVisibility.h"
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7 | #include "Polygon3.h"
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8 | #include "ViewCell.h"
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9 | #include "VssRay.h"
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10 | #include "VssTree.h"
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11 | #include "ViewCellsManager.h"
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12 | #include "RenderSimulator.h"
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13 | #include "Beam.h"
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14 | #include "GlRenderer.h"
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15 | #include "Intersectable.h"
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16 | #include "RayCaster.h"
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17 | #include "SamplingStrategy.h"
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18 | #include "ViewCellBsp.h"
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19 |
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20 |
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21 | namespace GtpVisibilityPreprocessor {
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22 |
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23 |
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24 | bool use2dSampling = false;
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25 | bool useViewspacePlane = false;
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26 |
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27 | VssPreprocessor::VssPreprocessor():
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28 | mVssRays()
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29 | {
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30 | // this should increase coherence of the samples
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31 | // Environment::GetSingleton()->GetIntValue("VssPreprocessor.samplesPerPass", mSamplesPerPass);
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32 | // Environment::GetSingleton()->GetIntValue("VssPreprocessor.initialSamples", mInitialSamples);
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33 | // Environment::GetSingleton()->GetIntValue("VssPreprocessor.vssSamples", mVssSamples);
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34 | // Environment::GetSingleton()->GetIntValue("VssPreprocessor.vssSamplesPerPass", mVssSamplesPerPass);
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35 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.useImportanceSampling", mUseImportanceSampling);
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36 |
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37 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.loadInitialSamples", mLoadInitialSamples);
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38 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.storeInitialSamples", mStoreInitialSamples);
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39 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.testBeamSampling", mTestBeamSampling);
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40 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.enlargeViewSpace", mEnlargeViewSpace);
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41 | Environment::GetSingleton()->GetBoolValue("Preprocessor.detectEmptyViewSpace", mDetectEmptyViewSpace);
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42 |
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43 | useViewspacePlane = mUseViewSpaceBox; //hack
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44 |
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45 | Debug << "*********** vss preprocessor options **************" << endl;
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46 | Debug << "use view space box=" << mUseViewSpaceBox << endl;
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47 | Debug << "enlarge view space=" << mEnlargeViewSpace << endl;
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48 | Debug << "*********** end vss preprocessor options **************" << endl;
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49 |
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50 | }
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51 |
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52 |
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53 | VssPreprocessor::~VssPreprocessor()
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54 | {
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55 | CLEAR_CONTAINER(mVssRays);
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56 | }
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57 |
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58 |
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59 | Vector3
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60 | VssPreprocessor::GetViewpoint(AxisAlignedBox3 *viewSpaceBox)
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61 | {
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62 | AxisAlignedBox3 box;
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63 |
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64 | if (viewSpaceBox)
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65 | box =*viewSpaceBox;
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66 | else
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67 | box = mKdTree->GetBox();
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68 |
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69 | // shrink the box in the y direction
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70 | return box.GetRandomPoint();
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71 | }
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72 |
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73 | Vector3
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74 | VssPreprocessor::GetDirection(const Vector3 &viewpoint,
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75 | AxisAlignedBox3 *viewSpaceBox
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76 | )
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77 | {
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78 | Vector3 point;
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79 | if (!use2dSampling)
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80 | {
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81 | if (0)
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82 | {
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83 | Vector3 normal;
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84 | int i = Random((int)mObjects.size());
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85 | Intersectable *object = mObjects[i];
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86 | object->GetRandomSurfacePoint(point, normal);
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87 | }
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88 | else
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89 | point = mKdTree->GetBox().GetRandomPoint();
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90 | // point = viewpoint + UniformRandomVector();
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91 | }
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92 | else
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93 | {
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94 | AxisAlignedBox3 box;
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95 |
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96 | if (viewSpaceBox)
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97 | box =*viewSpaceBox;
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98 | else
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99 | box = mKdTree->GetBox();
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100 |
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101 | point = box.GetRandomPoint();
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102 | point.y = viewpoint.y;
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103 | }
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104 |
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105 | return point - viewpoint;
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106 | }
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107 |
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108 | int
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109 | VssPreprocessor::GenerateImportanceRays(VssTree *vssTree,
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110 | const int desiredSamples,
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111 | SimpleRayContainer &rays
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112 | )
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113 | {
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114 | int num;
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115 | if (0) {
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116 | float minRayContribution;
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117 | float maxRayContribution;
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118 | float avgRayContribution;
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119 |
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120 | vssTree->GetRayContributionStatistics(minRayContribution,
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121 | maxRayContribution,
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122 | avgRayContribution);
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123 |
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124 | cout<<
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125 | "#MIN_RAY_CONTRIB\n"<<minRayContribution<<endl<<
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126 | "#MAX_RAY_CONTRIB\n"<<maxRayContribution<<endl<<
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127 | "#AVG_RAY_CONTRIB\n"<<avgRayContribution<<endl;
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128 |
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129 | float p = desiredSamples/(float)(avgRayContribution*vssTree->stat.Leaves());
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130 | num = vssTree->GenerateRays(p, rays);
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131 | } else {
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132 | int leaves = vssTree->stat.Leaves();
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133 | num = vssTree->GenerateRays(desiredSamples, leaves, rays);
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134 | }
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135 |
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136 | cout<<"Generated "<<num<<" rays."<<endl;
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137 |
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138 | return num;
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139 | }
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140 |
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141 |
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142 | bool
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143 | VssPreprocessor::ExportRays(const char *filename,
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144 | const VssRayContainer &vssRays,
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145 | const int number,
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146 | const bool exportScene
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147 | )
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148 | {
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149 | cout<<"Exporting vss rays..."<<endl<<flush;
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150 |
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151 | Exporter *exporter = NULL;
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152 | exporter = Exporter::GetExporter(filename);
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153 | exporter->SetWireframe();
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154 | exporter->ExportKdTree(*mKdTree);
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155 | exporter->SetFilled();
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156 | exporter->ExportScene(mSceneGraph->GetRoot());
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157 | exporter->SetWireframe();
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158 |
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159 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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160 | exporter->ExportBox(mViewCellsManager->GetViewSpaceBox());
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161 | exporter->ResetForcedMaterial();
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162 |
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163 |
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164 | VssRayContainer rays;
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165 | vssRays.SelectRays(number, rays);
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166 |
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167 | //exporter->ExportRays(rays, RgbColor(1, 0, 0));
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168 |
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169 | delete exporter;
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170 |
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171 | cout<<"done."<<endl<<flush;
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172 |
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173 | return true;
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174 | }
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175 |
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176 |
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177 | bool
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178 | VssPreprocessor::ExportVssTree(char *filename,
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179 | VssTree *tree,
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180 | const Vector3 &dir
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181 | )
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182 | {
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183 | Exporter *exporter = Exporter::GetExporter(filename);
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184 | exporter->SetFilled();
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185 | exporter->ExportScene(mSceneGraph->GetRoot());
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186 | // exporter->SetWireframe();
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187 | bool result = exporter->ExportVssTree2( *tree, dir );
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188 | delete exporter;
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189 | return result;
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190 | }
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191 |
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192 | bool
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193 | VssPreprocessor::ExportVssTreeLeaf(char *filename,
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194 | VssTree *tree,
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195 | VssTreeLeaf *leaf)
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196 | {
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197 | Exporter *exporter = NULL;
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198 | exporter = Exporter::GetExporter(filename);
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199 | exporter->SetWireframe();
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200 | exporter->ExportKdTree(*mKdTree);
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201 |
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202 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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203 | exporter->ExportBox(mViewCellsManager->GetViewSpaceBox());
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204 | exporter->ResetForcedMaterial();
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205 |
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206 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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207 | exporter->ExportBox(tree->GetBBox(leaf));
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208 | exporter->ResetForcedMaterial();
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209 |
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210 | VssRayContainer rays[4];
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211 | for (int i=0; i < leaf->rays.size(); i++) {
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212 | int k = leaf->rays[i].GetRayClass();
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213 | rays[k].push_back(leaf->rays[i].mRay);
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214 | }
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215 |
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216 | // SOURCE RAY
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217 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
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218 | // TERMINATION RAY
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219 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
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220 | // PASSING_RAY
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221 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
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222 | // CONTAINED_RAY
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223 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
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224 |
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225 | delete exporter;
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226 | return true;
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227 | }
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228 |
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229 | void
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230 | VssPreprocessor::ExportVssTreeLeaves(VssTree *tree, const int number)
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231 | {
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232 | vector<VssTreeLeaf *> leaves;
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233 | tree->CollectLeaves(leaves);
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234 |
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235 | int num = 0;
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236 | int i;
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237 | float p = number / (float)leaves.size();
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238 | for (i=0; i < leaves.size(); i++) {
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239 | if (RandomValue(0,1) < p) {
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240 | char filename[64];
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241 | sprintf(filename, "vss-leaf-%04d.x3d", num);
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242 | ExportVssTreeLeaf(filename, tree, leaves[i]);
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243 | num++;
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244 | }
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245 | if (num >= number)
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246 | break;
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247 | }
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248 | }
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249 |
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250 |
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251 | void VssPreprocessor::TestBeamCasting(VssTree *tree,
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252 | ViewCellsManager *vm,
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253 | const ObjectContainer &objects)
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254 | {
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255 | //debuggerWidget = new GlDebuggerWidget(renderer);
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256 | //renderer->resize(640, 480);
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257 | //debuggerWidget->resize(640, 480);
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258 |
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259 | vector<VssTreeLeaf *> leaves;
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260 | tree->CollectLeaves(leaves);
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261 |
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262 | Exporter *exporter = Exporter::GetExporter("shafts.x3d");
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263 |
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264 | exporter->SetWireframe();
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265 | exporter->ExportGeometry(objects);
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266 | exporter->SetFilled();
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267 |
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268 | //Randomize();
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269 | //§§matt
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270 | //debuggerWidget = new GlDebuggerWidget(renderer);
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271 |
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272 | /*
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273 | debuggerWidget->mBeam = beam;
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274 | debuggerWidget->mSourceObject = sourceObj;
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275 | debuggerWidget->mSamples = 10000;
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276 |
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277 | Debug << "showing window" << endl;
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278 | debuggerWidget->show();
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279 |
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280 | renderer->makeCurrent();
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281 | */
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282 |
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283 | for (int i = 0; i < 10; ++ i)
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284 | {
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285 | Beam beam;
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286 | Intersectable *sourceObj = mObjects[5];
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287 |
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288 | const int index = (int)RandomValue(0, (Real)((float)leaves.size() - 0.5f));
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289 | VssTreeLeaf *leaf = leaves[index];
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290 |
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291 | AxisAlignedBox3 dirBox = tree->GetDirBBox(leaf);
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292 | AxisAlignedBox3 box = tree->GetBBox(leaf);
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293 |
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294 | beam.Construct(box, dirBox);
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295 |
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296 | // collect kd leaves and view cells
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297 | mKdTree->CastBeam(beam);
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298 | vm->CastBeam(beam);
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299 |
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300 | Debug << "found " << (int)beam.mViewCells.size() << " view cells and "
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301 | << (int)beam.mKdNodes.size() << " kd nodes" << endl;
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302 |
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303 | BeamSampleStatistics stats;
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304 |
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305 | // §§matt
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306 | /*
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307 | renderer->SampleBeamContributions(sourceObj,
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308 | beam,
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309 | 200000,
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310 | stats);
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311 |
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312 | char s[64]; sprintf(s, "shaft%04d.png", i);
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313 |
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314 | QImage image = renderer->toImage();
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315 | image.save(s, "PNG");
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316 | Debug << "beam statistics: " << stats << endl << endl;
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317 | */
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318 |
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319 | if (1)
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320 | {
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321 | AxisAlignedBox3 sbox = mSceneGraph->GetBox();
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322 | Vector3 bmin = sbox.Min() - 150.0f;
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323 | Vector3 bmax = sbox.Max() + 150.0f;
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324 | AxisAlignedBox3 vbox(bmin, bmax);
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325 |
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326 | exporter->ExportBeam(beam, vbox);
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327 | }
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328 |
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329 | const bool exportViewCells = false;
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330 |
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331 | if (exportViewCells)
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332 | {
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333 | ViewCellContainer::const_iterator it, it_end = beam.mViewCells.end();
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334 |
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335 | for (it = beam.mViewCells.begin(); it != beam.mViewCells.end(); ++ it)
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336 | {
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337 | BspNodeGeometry geom;
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338 | AxisAlignedBox3 vbox;
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339 | vbox.Initialize();
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340 | vbox.Include((*it)->GetMesh());
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341 |
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342 | exporter->SetWireframe();
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343 | exporter->ExportBox(vbox);
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344 | exporter->SetFilled();
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345 | exporter->ExportViewCell(*it);
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346 | }
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347 | }
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348 | }
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349 |
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350 | delete exporter;
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351 | }
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352 |
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353 |
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354 | float
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355 | VssPreprocessor::GetAvgPvsSize(VssTree *tree,
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356 | const vector<AxisAlignedBox3> &viewcells
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357 | )
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358 | {
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359 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
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360 |
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361 | int sum = 0;
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362 | for (it = viewcells.begin(); it != it_end; ++ it)
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363 | sum += tree->GetPvsSize(*it);
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364 |
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365 | return sum/(float)viewcells.size();
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366 | }
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367 |
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368 | bool
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369 | VssPreprocessor::ComputeVisibility()
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370 | {
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371 | Debug << "type: vss" << endl;
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372 |
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373 | const long startTime = GetTime();
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374 | int totalSamples = 0;
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375 |
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376 | if (!mLoadViewCells)
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377 | {
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378 | // generate new view cells from the scratch using coarse sampling
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379 | ConstructViewCells();
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380 | }
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381 | #if 0
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382 | else
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383 | {
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384 | // load view cells from file
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385 | // we test success by exporting view cells again
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386 | VssRayContainer dummyContainer;
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387 | mViewCellsManager->Visualize(mObjects, dummyContainer);
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388 |
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389 | mViewCellsManager->ExportViewCells("test.xml.zip", mViewCellsManager->GetExportPvs(), mObjects);
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390 | }
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391 | #endif
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392 |
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393 | VssTree *vssTree = NULL;
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394 | const long initialTime = GetTime();
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395 |
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396 | if (mLoadInitialSamples)
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397 | {
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398 | cout << "Loading samples from file ... ";
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399 |
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400 | LoadSamples(mVssRays, mObjects);
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401 |
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402 | cout << "finished\n" << endl;
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403 | totalSamples = (int)mVssRays.size();
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404 | }
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405 | else
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406 | {
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407 | while (totalSamples < mInitialSamples)
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408 | {
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409 | int passContributingSamples = 0;
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410 | int passSampleContributions = 0;
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411 | int passSamples = 0;
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412 |
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413 | int index = 0;
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414 |
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415 | int sampleContributions;
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416 |
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417 | int s = Min(mSamplesPerPass, mInitialSamples);
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418 | for (int k=0; k < s; k++)
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419 | {
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420 | Vector3 viewpoint;
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421 |
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422 | mViewCellsManager->GetViewPoint(viewpoint);
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423 | AxisAlignedBox3 vspBox = mViewCellsManager->GetViewSpaceBox();
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424 | const Vector3 direction = GetDirection(viewpoint, &vspBox);
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425 |
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426 | const SimpleRay sray(viewpoint, direction,
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427 | SamplingStrategy::DIRECTION_BOX_BASED_DISTRIBUTION,
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428 | 1.0f);
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429 | sampleContributions = mRayCaster->CastRay(sray,
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430 | mVssRays,
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431 | mViewCellsManager->GetViewSpaceBox(),
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432 | true);
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433 |
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434 | if (sampleContributions) {
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435 | passContributingSamples ++;
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436 | passSampleContributions += sampleContributions;
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437 | }
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438 | passSamples++;
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439 | totalSamples++;
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440 | }
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441 |
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442 | mPass++;
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443 | int pvsSize = 0;
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444 | float avgRayContrib = (passContributingSamples > 0) ?
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445 | passSampleContributions/(float)passContributingSamples : 0;
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446 |
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447 | cout << "#Pass " << mPass << " : t = " << TimeDiff(startTime, GetTime())*1e-3 << "s" << endl;
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448 | cout << "#TotalSamples=" << totalSamples/1000
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449 | << "#SampleContributions=" << passSampleContributions << " ("
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450 | << 100*passContributingSamples/(float)passSamples<<"%)" << " avgPVS="
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451 | << pvsSize/(float)mObjects.size() << endl
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452 | << "avg ray contrib=" << avgRayContrib << endl;
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453 |
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454 | mStats <<
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455 | "#Pass\n" <<mPass<<endl<<
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456 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3 << endl<<
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457 | "#TotalSamples\n" << totalSamples<< endl<<
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458 | "#SampleContributions\n" << passSampleContributions << endl <<
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459 | "#PContributingSamples\n"<<100*passContributingSamples/(float)passSamples<<endl <<
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460 | "#AvgPVS\n"<< pvsSize/(float)mObjects.size() << endl <<
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461 | "#AvgRayContrib\n" << avgRayContrib << endl;
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462 | }
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463 | }
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464 |
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465 |
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466 | cout << "#totalRayStackSize=" << (int)mVssRays.size() << endl << flush;
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467 | Debug << (int)mVssRays.size() << " rays generated in "
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468 | << TimeDiff(initialTime, GetTime()) * 1e-3 << " seconds" << endl;
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469 |
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470 | if (mStoreInitialSamples)
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471 | {
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472 | cout << "Writing " << (int)mVssRays.size() << " samples to file ... ";
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473 | ExportSamples(mVssRays);
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474 | cout << "finished\n" << endl;
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475 | }
|
---|
476 |
|
---|
477 |
|
---|
478 | //int numExportRays = 2000;
|
---|
479 | int numExportRays = 0;
|
---|
480 |
|
---|
481 | if (numExportRays) {
|
---|
482 | char filename[64];
|
---|
483 | sprintf(filename, "vss-rays-initial.x3d");
|
---|
484 | ExportRays(filename, mVssRays, numExportRays);
|
---|
485 | }
|
---|
486 |
|
---|
487 | vssTree = new VssTree;
|
---|
488 | // viewcells = Construct(mVssRays);
|
---|
489 |
|
---|
490 | vssTree->Construct(mVssRays, NULL);
|
---|
491 | cout<<"VssTree root PVS size = "<<vssTree->GetRootPvsSize()<<endl;
|
---|
492 |
|
---|
493 | if (0) ExportRays("kdtree.x3d", mVssRays, 10);
|
---|
494 |
|
---|
495 | if (0)
|
---|
496 | {
|
---|
497 | ExportVssTree("vss-tree-100.x3d", vssTree, Vector3(1,0,0));
|
---|
498 | ExportVssTree("vss-tree-001.x3d", vssTree, Vector3(0,0,1));
|
---|
499 | ExportVssTree("vss-tree-101.x3d", vssTree, Vector3(1,0,1));
|
---|
500 | ExportVssTree("vss-tree-101m.x3d", vssTree, Vector3(-1,0,-1));
|
---|
501 | ExportVssTreeLeaves(vssTree, 10);
|
---|
502 | }
|
---|
503 |
|
---|
504 | // viewcells->UpdatePVS(newVssRays);
|
---|
505 | // get viewcells as kd tree boxes
|
---|
506 | vector<AxisAlignedBox3> kdViewcells;
|
---|
507 | if (0)
|
---|
508 | {
|
---|
509 | vector<KdLeaf *> leaves;
|
---|
510 | mKdTree->CollectLeaves(leaves);
|
---|
511 | vector<KdLeaf *>::const_iterator it;
|
---|
512 | int targetLeaves = 50;
|
---|
513 | float prob = targetLeaves/(float)leaves.size();
|
---|
514 | for (it = leaves.begin(); it != leaves.end(); ++it)
|
---|
515 | if (RandomValue(0.0f,1.0f) < prob)
|
---|
516 | kdViewcells.push_back(mKdTree->GetBox(*it));
|
---|
517 |
|
---|
518 | float avgPvs = GetAvgPvsSize(vssTree, kdViewcells);
|
---|
519 | cout<<"Initial average PVS size = "<<avgPvs<<endl;
|
---|
520 | }
|
---|
521 |
|
---|
522 |
|
---|
523 | int samples = 0;
|
---|
524 | int pass = 0;
|
---|
525 |
|
---|
526 |
|
---|
527 | // cast view cell samples
|
---|
528 | while (samples < mVssSamples)
|
---|
529 | {
|
---|
530 | int num = mVssSamplesPerPass;
|
---|
531 | SimpleRayContainer rays;
|
---|
532 | VssRayContainer vssRays;
|
---|
533 |
|
---|
534 | if (!mUseImportanceSampling)
|
---|
535 | {
|
---|
536 | for (int j=0; j < num; j++) {
|
---|
537 | Vector3 viewpoint;
|
---|
538 | mViewCellsManager->GetViewPoint(viewpoint);
|
---|
539 | Vector3 direction = GetDirection(viewpoint, NULL);
|
---|
540 | rays.push_back(SimpleRay(viewpoint, direction,
|
---|
541 | SamplingStrategy::DIRECTION_BOX_BASED_DISTRIBUTION,
|
---|
542 | 1.0f)
|
---|
543 | );
|
---|
544 | }
|
---|
545 | }
|
---|
546 | else
|
---|
547 | {
|
---|
548 | num = GenerateImportanceRays(vssTree, num, rays);
|
---|
549 | }
|
---|
550 |
|
---|
551 | CastRays(rays, vssRays, true);
|
---|
552 | vssTree->AddRays(vssRays);
|
---|
553 |
|
---|
554 | if (0)
|
---|
555 | {
|
---|
556 | int subdivided = vssTree->UpdateSubdivision();
|
---|
557 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
558 | }
|
---|
559 |
|
---|
560 | float avgPvs = GetAvgPvsSize(vssTree, kdViewcells);
|
---|
561 | cout<<"Average PVS size = "<<avgPvs<<endl;
|
---|
562 |
|
---|
563 | /// compute view cell contribution of rays
|
---|
564 | mViewCellsManager->ComputeSampleContributions(vssRays, true, false);
|
---|
565 |
|
---|
566 | if (numExportRays) {
|
---|
567 | char filename[64];
|
---|
568 | if (mUseImportanceSampling)
|
---|
569 | sprintf(filename, "vss-rays-i%04d.x3d", pass);
|
---|
570 | else
|
---|
571 | sprintf(filename, "vss-rays-%04d.x3d", pass);
|
---|
572 |
|
---|
573 | ExportRays(filename, vssRays, numExportRays);
|
---|
574 | }
|
---|
575 |
|
---|
576 | samples += num;
|
---|
577 |
|
---|
578 | float pvs = vssTree->GetAvgPvsSize();
|
---|
579 | cout<<"*****************************\n";
|
---|
580 | cout<<samples<<" avgPVS ="<<pvs<<endl;
|
---|
581 | cout<<"VssTree root PVS size = "<<vssTree->GetRootPvsSize()<<endl;
|
---|
582 | cout<<"*****************************\n";
|
---|
583 | // if (samples >= mVssSamples) break;
|
---|
584 | pass ++;
|
---|
585 | }
|
---|
586 |
|
---|
587 | if (mTestBeamSampling && mUseGlRenderer)
|
---|
588 | {
|
---|
589 | TestBeamCasting(vssTree, mViewCellsManager, mObjects);
|
---|
590 | }
|
---|
591 |
|
---|
592 | if (0) Debug << vssTree->stat << endl;
|
---|
593 |
|
---|
594 | if (0)
|
---|
595 | {
|
---|
596 | VssRayContainer viewCellRays;
|
---|
597 | // compute rays used for view cells construction
|
---|
598 | const int numRays = mViewCellsManager->GetVisualizationSamples();
|
---|
599 | vssTree->CollectRays(viewCellRays, numRays);
|
---|
600 | }
|
---|
601 |
|
---|
602 |
|
---|
603 | ////////////////////
|
---|
604 | //-- render simulation after construction
|
---|
605 |
|
---|
606 | mRenderSimulator->RenderScene();
|
---|
607 | SimulationStatistics ss;
|
---|
608 | mRenderSimulator->GetStatistics(ss);
|
---|
609 | Debug << "\nFinal view cells partition render time\n" << ss << endl;
|
---|
610 | cout << "\nFinal view cells partition render time\n" << ss << endl;
|
---|
611 |
|
---|
612 | delete vssTree;
|
---|
613 |
|
---|
614 | return true;
|
---|
615 | }
|
---|
616 |
|
---|
617 |
|
---|
618 | void VssPreprocessor::DeterminePvsObjects(VssRayContainer &rays)
|
---|
619 | {
|
---|
620 | // store higher order object
|
---|
621 | mViewCellsManager->DeterminePvsObjects(rays, !mViewCellsManager->ViewCellsConstructed());
|
---|
622 | }
|
---|
623 |
|
---|
624 |
|
---|
625 | }
|
---|