1 | #include <stack>
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2 | #include "common.h"
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3 | #include "SceneGraph.h"
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4 | #include "X3dExporter.h"
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5 | #include "Mesh.h"
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6 | #include "KdTree.h"
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7 | #include "ViewCellBsp.h"
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8 | #include "ViewCell.h"
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9 | #include "Polygon3.h"
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10 | #include "VssRay.h"
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11 |
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12 | X3dExporter::X3dExporter(const string filename):Exporter(filename)
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13 | {
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14 | stream.open(mFilename.c_str());
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15 | stream<<"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
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16 | stream<<"<X3D>"<<endl;
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17 | stream<<"<Scene>"<<endl;
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18 |
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19 | }
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20 |
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21 | X3dExporter::~X3dExporter()
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22 | {
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23 | stream<<"</Scene>"<<endl;
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24 | stream<<"</X3D>"<<endl;
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25 | stream.close();
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26 | }
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27 |
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28 |
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29 | // bool
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30 | // X3dExporter::ExportRays(const vector<Ray> &rays,
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31 | // const float length,
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32 | // const RgbColor &color)
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33 | // {
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34 | // vector<Ray>::const_iterator ri = rays.begin();
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35 | // stream<<"<Shape>"<<endl;
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36 | // stream<<"<Appearance>"<<endl;
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37 | // stream<<"<Material ambientColor=\""<<color.r<<" "<<color.g<<" "<<color.b<<
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38 | // "\" />"<<endl;
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39 | // stream<<"</Appearance>"<<endl;
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40 |
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41 | // stream<<"<IndexedLineSet coordIndex=\""<<endl;
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42 |
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43 | // int index = 0;
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44 | // for (; ri != rays.end(); ri++) {
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45 | // stream<<index<<" "<<index+1<<" -1\n";
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46 | // index+=2;
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47 | // }
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48 |
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49 | // stream<<"\" >"<<endl;
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50 |
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51 | // stream<<"<Coordinate point=\""<<endl;
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52 |
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53 | // ri = rays.begin();
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54 | // for (; ri != rays.end(); ri++) {
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55 | // Vector3 a = (*ri).GetLoc();
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56 |
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57 | // Vector3 b;
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58 | // if (length < 0)
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59 | // b = (*ri).GetLoc() - length*(*ri).GetDir();
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60 | // else
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61 | // if ((*ri).intersections.size()==0)
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62 | // b = (*ri).GetLoc() + length*(*ri).GetDir();
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63 | // else
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64 | // b = (*ri).Extrap((*ri).intersections[0].mT);
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65 |
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66 | // stream<<a.x<<" "<<a.y<<" "<<a.z<<" ,";
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67 | // stream<<b.x<<" "<<b.y<<" "<<b.z<<" ,\n";
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68 | // }
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69 |
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70 | // stream<<"\" >"<<endl;
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71 | // stream<<"</Coordinate>"<<endl;
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72 | // stream<<"</IndexedLineSet>"<<endl;
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73 | // stream<<"</Shape>"<<endl;
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74 | // return true;
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75 | // }
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76 |
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77 |
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78 | bool
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79 | X3dExporter::ExportRays(const RayContainer &rays,
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80 | const float length,
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81 | const RgbColor &color)
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82 | {
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83 | RayContainer::const_iterator ri = rays.begin();
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84 |
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85 | stream<<"<Shape>"<<endl;
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86 | stream<<"<Appearance>"<<endl;
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87 | stream<<"<Material ambientColor=\""<<color.r<<" "<<color.g<<" "<<color.b<<
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88 | "\" />"<<endl;
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89 | stream<<"</Appearance>"<<endl;
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90 |
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91 | stream<<"<IndexedLineSet coordIndex=\""<<endl;
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92 |
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93 | int index = 0;
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94 | for (; ri != rays.end(); ri++) {
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95 | stream<<index<<" "<<index+1<<" -1\n";
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96 | index+=2;
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97 | }
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98 |
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99 | stream<<"\" >"<<endl;
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100 |
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101 | stream<<"<Coordinate point=\""<<endl;
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102 |
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103 | ri = rays.begin();
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104 | for (; ri != rays.end(); ri++) {
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105 | Vector3 a = (*ri)->GetLoc();
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106 |
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107 | Vector3 b;
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108 | if (length < 0)
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109 | b = (*ri)->GetLoc() - length*(*ri)->GetDir();
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110 | else
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111 | if ((*ri)->intersections.size()==0)
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112 | b = (*ri)->GetLoc() + length*(*ri)->GetDir();
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113 | else
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114 | b = (*ri)->Extrap((*ri)->intersections[0].mT);
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115 |
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116 | stream<<a.x<<" "<<a.y<<" "<<a.z<<" ,";
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117 | stream<<b.x<<" "<<b.y<<" "<<b.z<<" ,\n";
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118 | }
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119 |
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120 | stream<<"\" >"<<endl;
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121 | stream<<"</Coordinate>"<<endl;
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122 | stream<<"</IndexedLineSet>"<<endl;
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123 | stream<<"</Shape>"<<endl;
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124 |
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125 | return true;
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126 | }
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127 |
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128 | bool
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129 | X3dExporter::ExportRays(const VssRayContainer &rays,
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130 | const RgbColor &color)
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131 | {
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132 | VssRayContainer::const_iterator ri = rays.begin();
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133 |
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134 | stream<<"<Shape>"<<endl;
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135 | stream<<"<Appearance>"<<endl;
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136 | stream<<"<Material ambientColor=\""<<color.r<<" "<<color.g<<" "<<color.b<<
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137 | "\" />"<<endl;
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138 | stream<<"</Appearance>"<<endl;
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139 |
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140 | stream<<"<IndexedLineSet coordIndex=\""<<endl;
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141 |
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142 | int index = 0;
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143 | for (; ri != rays.end(); ri++) {
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144 | stream<<index<<" "<<index+1<<" -1\n";
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145 | index+=2;
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146 | }
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147 |
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148 | stream<<"\" >"<<endl;
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149 |
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150 | stream<<"<Coordinate point=\""<<endl;
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151 |
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152 | ri = rays.begin();
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153 | for (; ri != rays.end(); ri++) {
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154 | Vector3 a = (*ri)->GetOrigin();
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155 |
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156 | Vector3 b = (*ri)->GetTermination();
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157 | stream<<a.x<<" "<<a.y<<" "<<a.z<<" ,";
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158 | stream<<b.x<<" "<<b.y<<" "<<b.z<<" ,\n";
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159 | }
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160 |
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161 | stream<<"\" >"<<endl;
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162 | stream<<"</Coordinate>"<<endl;
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163 | stream<<"</IndexedLineSet>"<<endl;
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164 | stream<<"</Shape>"<<endl;
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165 |
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166 | return true;
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167 | }
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168 |
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169 | void
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170 | X3dExporter::ExportSceneNode(SceneGraphNode *node)
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171 | {
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172 | stream<<"<Group>"<<endl;
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173 |
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174 | SceneGraphNodeContainer::iterator ni = node->mChildren.begin();
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175 | for (; ni != node->mChildren.end(); ni++)
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176 | ExportSceneNode(*ni);
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177 |
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178 |
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179 | ObjectContainer::const_iterator mi = node->mGeometry.begin();
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180 | for (; mi != node->mGeometry.end(); mi++) {
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181 | // export the transform...
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182 | ExportIntersectable(*mi);
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183 | }
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184 |
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185 | stream<<"</Group>"<<endl;
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186 |
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187 | }
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188 | void
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189 | X3dExporter::ExportIntersectable(Intersectable *object)
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190 | {
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191 | switch (object->Type()) {
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192 | case Intersectable::MESH_INSTANCE:
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193 | case Intersectable::TRANSFORMED_MESH_INSTANCE:
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194 | ExportMeshInstance((MeshInstance *)object);
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195 | break;
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196 | case Intersectable::VIEW_CELL:
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197 | ExportViewCell((ViewCell *)object);
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198 | break;
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199 | default:
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200 | cerr<<"Sorry the export for object not yet defined"<<endl;
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201 | break;
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202 | }
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203 | }
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204 |
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205 | void
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206 | X3dExporter::ExportMeshInstance(MeshInstance *object)
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207 | {
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208 | // $$JB$$
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209 | // in the future check whether the mesh was not already exported
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210 | // and use a reference to the that mesh instead
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211 | ExportMesh(object->GetMesh());
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212 | }
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213 |
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214 | void
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215 | X3dExporter::ExportViewCells(const ViewCellContainer &viewCells)
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216 | {
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217 | ViewCellContainer::const_iterator it, it_end = viewCells.end();
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218 |
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219 | for (it = viewCells.begin(); it != it_end; ++ it)
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220 | ExportViewCell(*it);
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221 | }
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222 |
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223 | void
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224 | X3dExporter::ExportBspViewCellPartition(const BspTree &tree, const int maxPvs)
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225 | {
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226 | ViewCellContainer viewCells;
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227 | tree.CollectViewCells(viewCells);
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228 |
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229 | ViewCellContainer::const_iterator it, it_end = viewCells.end();
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230 |
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231 |
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232 | if (maxPvs > 0)
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233 | mUseForcedMaterial = true;
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234 |
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235 | for (it = viewCells.begin(); it != it_end; ++ it)
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236 | {
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237 | if (maxPvs > 0)
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238 | {
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239 | mForcedMaterial.mDiffuseColor.b = 1.0f;
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240 | float importance = (float)(*it)->GetPvs().GetSize() / (float)maxPvs;
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241 |
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242 | mForcedMaterial.mDiffuseColor.r = importance;
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243 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
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244 | }
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245 |
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246 | if ((*it)->GetMesh())
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247 | ExportViewCell(*it);
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248 | else
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249 | {
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250 | PolygonContainer cell;
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251 | tree.ConstructGeometry(dynamic_cast<BspViewCell *>(*it), cell);
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252 |
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253 | ExportPolygons(cell);
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254 | }
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255 | }
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256 | }
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257 |
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258 | void
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259 | X3dExporter::ExportBspLeaves(const BspTree &tree)
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260 | {
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261 | vector<BspLeaf *> leaves;
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262 | tree.CollectLeaves(leaves);
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263 |
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264 | vector<BspLeaf *>::const_iterator it, it_end = leaves.end();
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265 |
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266 | for (it = leaves.begin(); it != it_end; ++ it)
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267 | {
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268 | PolygonContainer cell;
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269 | tree.ConstructGeometry(*it, cell);
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270 | ExportPolygons(cell);
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271 | }
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272 | }
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273 |
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274 | void
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275 | X3dExporter::ExportViewCell(ViewCell *viewCell)
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276 | {
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277 | if (viewCell->GetMesh())
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278 | ExportMesh(viewCell->GetMesh());
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279 | }
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280 |
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281 | void
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282 | X3dExporter::ExportMesh(Mesh *mesh)
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283 | {
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284 |
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285 | stream<<"<Shape>"<<endl;
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286 | stream<<"<Appearance>"<<endl;
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287 |
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288 | // $$ tmp -> random material
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289 |
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290 | float r, g, b;
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291 |
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292 | if (mUseForcedMaterial) {
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293 | r = mForcedMaterial.mDiffuseColor.r;
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294 | g = mForcedMaterial.mDiffuseColor.g;
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295 | b = mForcedMaterial.mDiffuseColor.b;
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296 |
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297 | } else
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298 | if (mesh->mMaterial) {
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299 | r = mesh->mMaterial->mDiffuseColor.r;
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300 | g = mesh->mMaterial->mDiffuseColor.g;
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301 | b = mesh->mMaterial->mDiffuseColor.b;
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302 | } else {
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303 | r = RandomValue(0.5, 1.0);
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304 | g = RandomValue(0.5, 1.0);
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305 | b = RandomValue(0.5, 1.0);
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306 | }
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307 | stream<<"<Material diffuseColor=\""<<r<<" "<<g<<" "<<b<<
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308 | "\" specularColor=\"0.0 0.0 0.0\"/>"<<endl;
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309 | stream<<"</Appearance>"<<endl;
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310 |
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311 |
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312 | if (mWireframe)
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313 | stream<<"<IndexedLineSet ccw=\"TRUE\" coordIndex=\""<<endl;
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314 | else
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315 | stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
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316 |
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317 | FaceContainer::const_iterator fi = mesh->mFaces.begin();
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318 |
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319 | int index = 0;
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320 |
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321 | for (; fi != mesh->mFaces.end(); fi++) {
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322 | Face *face = *fi;
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323 | VertexIndexContainer::const_iterator vi = face->mVertexIndices.begin();
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324 | for (; vi != face->mVertexIndices.end(); vi++)
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325 | stream<<*vi<<" ";
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326 | if (mWireframe) // final line to finish polygon
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327 | stream << (*face->mVertexIndices.begin()) << " ";
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328 |
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329 | stream<<"-1"<<endl;
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330 | }
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331 | stream<<"\" >"<<endl;
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332 |
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333 | stream<<"<Coordinate point=\""<<endl;
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334 |
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335 | VertexContainer::const_iterator vi = mesh->mVertices.begin();
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336 | for (; vi != mesh->mVertices.end(); vi++) {
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337 | stream<<(*vi).x<<" "<<(*vi).y<<" "<<(*vi).z;
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338 | stream<<","<<endl;
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339 | }
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340 |
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341 | stream<<"\" >"<<endl;
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342 | stream<<"</Coordinate>"<<endl;
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343 |
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344 | if (mWireframe)
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345 | stream<<"</IndexedLineSet>"<<endl;
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346 | else
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347 | stream<<"</IndexedFaceSet>"<<endl;
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348 |
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349 | stream<<"</Shape>"<<endl;
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350 |
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351 | }
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352 |
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353 |
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354 | void X3dExporter::ExportPolygon(Polygon3 *poly)
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355 | {
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356 | stream << "<Shape>" << endl;
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357 | stream << "<Appearance>" << endl;
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358 |
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359 | // $$ tmp -> random material
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360 |
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361 | float r, g, b;
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362 |
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363 | if (mUseForcedMaterial)
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364 | {
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365 | r = mForcedMaterial.mDiffuseColor.r;
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366 | g = mForcedMaterial.mDiffuseColor.g;
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367 | b = mForcedMaterial.mDiffuseColor.b;
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368 | }
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369 | else if (poly->mMaterial)
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370 | {
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371 | r = poly->mMaterial->mDiffuseColor.r;
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372 | g = poly->mMaterial->mDiffuseColor.g;
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373 | b = poly->mMaterial->mDiffuseColor.b;
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374 | } else
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375 | {
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376 | r = RandomValue(0.5, 1.0);
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377 | g = RandomValue(0.5, 1.0);
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378 | b = RandomValue(0.5, 1.0);
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379 | }
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380 |
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381 | stream << "<Material diffuseColor=\"" << r << " " << g << " " << b
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382 | << "\" specularColor=\"0.0 0.0 0.0\"/>" << endl;
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383 |
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384 | stream << "</Appearance>" << endl;
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385 |
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386 |
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387 | //-- create and write indices
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388 | if (mWireframe)
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389 | stream << "<IndexedLineSet ccw=\"TRUE\" coordIndex=\"" << endl;
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390 | else
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391 | stream << "<IndexedFaceSet ccw=\"TRUE\" coordIndex=\"" << endl;
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392 |
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393 | int index = 0;
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394 |
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395 | VertexContainer::const_iterator vi;
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396 |
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397 | for (index = 0; index < (int)poly->mVertices.size(); ++ index)
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398 | stream << index << " ";
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399 |
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400 | if (mWireframe) // final line to finish polygon
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401 | stream << "0 ";
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402 |
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403 | stream << "-1" << endl;
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404 | stream << "\" >" << endl;
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405 |
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406 | stream << "<Coordinate point=\"" << endl;
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407 |
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408 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
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409 | {
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410 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
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411 | stream << "," << endl;
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412 | }
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413 |
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414 | stream << "\" >" << endl;
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415 | stream << "</Coordinate>" << endl;
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416 |
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417 | if (mWireframe)
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418 | stream << "</IndexedLineSet>" << endl;
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419 | else
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420 | stream << "</IndexedFaceSet>" << endl;
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421 |
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422 | stream << "</Shape>" << endl;
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423 | }
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424 |
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425 | void X3dExporter::ExportPolygons(const PolygonContainer &polys)
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426 | {
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427 | stream << "<Shape>" << endl;
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428 | stream << "<Appearance>" << endl;
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429 |
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430 | // $$ tmp -> random material
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431 |
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432 | float r, g, b;
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433 |
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434 | if (mUseForcedMaterial)
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435 | {
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436 | r = mForcedMaterial.mDiffuseColor.r;
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437 | g = mForcedMaterial.mDiffuseColor.g;
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438 | b = mForcedMaterial.mDiffuseColor.b;
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439 | }
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440 | else
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441 | {
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442 | r = RandomValue(0.5, 1.0);
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443 | g = RandomValue(0.5, 1.0);
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444 | b = RandomValue(0.5, 1.0);
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445 | }
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446 |
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447 | stream << "<Material diffuseColor=\"" << r << " " << g << " " << b
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448 | << "\" specularColor=\"0.0 0.0 0.0\"/>" << endl;
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449 |
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450 | stream << "</Appearance>" << endl;
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451 |
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452 |
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453 | //-- create and write indices
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454 | if (mWireframe)
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455 | stream << "<IndexedLineSet ccw=\"TRUE\" coordIndex=\"" << endl;
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456 | else
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457 | stream << "<IndexedFaceSet ccw=\"TRUE\" coordIndex=\"" << endl;
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458 |
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459 | int index = 0;
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460 |
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461 | PolygonContainer::const_iterator pit;
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462 |
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463 | VertexContainer::const_iterator vi;
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464 |
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465 | for (pit = polys.begin(); pit != polys.end(); ++pit)
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466 | {
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467 | Polygon3 *poly = *pit;
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468 | int startIdx = index;
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469 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
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470 | {
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471 | stream << index ++ << " ";
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472 | }
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473 |
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474 | stream << startIdx << " ";// finish line
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475 | stream << "-1" << endl;
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476 | }
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477 |
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478 | stream << "\" >" << endl;
|
---|
479 |
|
---|
480 | stream << "<Coordinate point=\"" << endl;
|
---|
481 | for (pit = polys.begin(); pit != polys.end(); ++ pit)
|
---|
482 | {
|
---|
483 | Polygon3 *poly = *pit;
|
---|
484 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
|
---|
485 | {
|
---|
486 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
|
---|
487 | stream << "," << endl;
|
---|
488 | }
|
---|
489 | }
|
---|
490 | stream << "\" >" << endl;
|
---|
491 | stream << "</Coordinate>" << endl;
|
---|
492 |
|
---|
493 | if (mWireframe)
|
---|
494 | stream << "</IndexedLineSet>" << endl;
|
---|
495 | else
|
---|
496 | stream << "</IndexedFaceSet>" << endl;
|
---|
497 |
|
---|
498 | stream << "</Shape>" << endl;
|
---|
499 | }
|
---|
500 |
|
---|
501 | bool
|
---|
502 | X3dExporter::ExportBox(const AxisAlignedBox3 &box)
|
---|
503 | {
|
---|
504 | Mesh *mesh = new Mesh;
|
---|
505 | // add 6 vertices of the box
|
---|
506 | int index = (int)mesh->mVertices.size();
|
---|
507 | for (int i=0; i < 8; i++) {
|
---|
508 | Vector3 v;
|
---|
509 | box.GetVertex(i, v);
|
---|
510 | mesh->mVertices.push_back(v);
|
---|
511 | }
|
---|
512 |
|
---|
513 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
514 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
515 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
516 |
|
---|
517 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
518 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
519 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
520 |
|
---|
521 | ExportMesh(mesh);
|
---|
522 | delete mesh;
|
---|
523 | return true;
|
---|
524 | }
|
---|
525 |
|
---|
526 | bool
|
---|
527 | X3dExporter::ExportBspTree(const BspTree &tree)
|
---|
528 | {
|
---|
529 | if (mExportRayDensity)
|
---|
530 | {
|
---|
531 | return ExportBspTreeRayDensity(tree);
|
---|
532 | }
|
---|
533 |
|
---|
534 | stack<BspNode *> tStack;
|
---|
535 |
|
---|
536 | tStack.push(tree.GetRoot());
|
---|
537 |
|
---|
538 | Mesh *mesh = new Mesh;
|
---|
539 |
|
---|
540 | AxisAlignedBox3 box = tree.GetBoundingBox();
|
---|
541 | bool savedWireframe = mWireframe;
|
---|
542 |
|
---|
543 | SetWireframe();
|
---|
544 | ExportBox(box);
|
---|
545 |
|
---|
546 | if (!savedWireframe)
|
---|
547 | SetFilled();
|
---|
548 |
|
---|
549 | //ViewCellContainer foundViewCells;
|
---|
550 |
|
---|
551 | if (BspTree::sStoreSplitPolys)
|
---|
552 | {
|
---|
553 | while (!tStack.empty())
|
---|
554 | {
|
---|
555 | BspNode *node = tStack.top();
|
---|
556 |
|
---|
557 | tStack.pop();
|
---|
558 |
|
---|
559 | PolygonContainer::const_iterator it;
|
---|
560 | PolygonContainer::const_iterator it_end = node->GetPolygons()->end();
|
---|
561 |
|
---|
562 | for (it = node->GetPolygons()->begin(); it != it_end; ++ it)
|
---|
563 | ExportPolygon(*it);
|
---|
564 |
|
---|
565 | if (!node->IsLeaf())
|
---|
566 | {
|
---|
567 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
|
---|
568 |
|
---|
569 | tStack.push(interior->GetFront());
|
---|
570 | tStack.push(interior->GetBack());
|
---|
571 |
|
---|
572 | }
|
---|
573 | }
|
---|
574 | }
|
---|
575 | // export view cells
|
---|
576 | ExportBspViewCellPartition(tree);
|
---|
577 |
|
---|
578 | return true;
|
---|
579 | }
|
---|
580 |
|
---|
581 | bool X3dExporter::ExportKdTree(const KdTree &tree)
|
---|
582 | {
|
---|
583 | if (mExportRayDensity) {
|
---|
584 | return ExportKdTreeRayDensity(tree);
|
---|
585 | }
|
---|
586 |
|
---|
587 | stack<KdNode *> tStack;
|
---|
588 |
|
---|
589 | tStack.push(tree.GetRoot());
|
---|
590 |
|
---|
591 | Mesh *mesh = new Mesh;
|
---|
592 |
|
---|
593 | while (!tStack.empty()) {
|
---|
594 | KdNode *node = tStack.top();
|
---|
595 | tStack.pop();
|
---|
596 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
597 | // add 6 vertices of the box
|
---|
598 | int index = (int)mesh->mVertices.size();
|
---|
599 | for (int i=0; i < 8; i++) {
|
---|
600 | Vector3 v;
|
---|
601 | box.GetVertex(i, v);
|
---|
602 | mesh->mVertices.push_back(v);
|
---|
603 | }
|
---|
604 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
605 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
606 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
607 |
|
---|
608 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
609 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
610 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
611 |
|
---|
612 | if (!node->IsLeaf()) {
|
---|
613 | KdInterior *interior = (KdInterior *)node;
|
---|
614 | tStack.push(interior->mFront);
|
---|
615 | tStack.push(interior->mBack);
|
---|
616 | }
|
---|
617 | }
|
---|
618 |
|
---|
619 | ExportMesh(mesh);
|
---|
620 | delete mesh;
|
---|
621 | return true;
|
---|
622 | // TODO
|
---|
623 | return true;
|
---|
624 | }
|
---|
625 |
|
---|
626 |
|
---|
627 | bool
|
---|
628 | X3dExporter::ExportBspTreeRayDensity(const BspTree &tree)
|
---|
629 | {
|
---|
630 | stack<BspNode *> tStack;
|
---|
631 |
|
---|
632 | tStack.push(tree.GetRoot());
|
---|
633 |
|
---|
634 | bool fm = mUseForcedMaterial;
|
---|
635 |
|
---|
636 | mUseForcedMaterial = true;
|
---|
637 |
|
---|
638 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
639 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
640 |
|
---|
641 | while (!tStack.empty())
|
---|
642 | {
|
---|
643 | BspNode *node = tStack.top();
|
---|
644 | tStack.pop();
|
---|
645 |
|
---|
646 | if (node->IsLeaf())
|
---|
647 | {
|
---|
648 | ViewCell *vc = dynamic_cast<BspLeaf *>(node)->GetViewCell();
|
---|
649 |
|
---|
650 | // set the mesh material according to the ray density
|
---|
651 | if (vc->mPassingRays.mRays)
|
---|
652 | {
|
---|
653 | float importance =
|
---|
654 | vc->mPassingRays.mContributions / (float)vc->mPassingRays.mRays;
|
---|
655 |
|
---|
656 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
657 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
658 | ExportViewCell(vc);
|
---|
659 | }
|
---|
660 | } else
|
---|
661 | {
|
---|
662 | BspInterior *interior = (BspInterior *)node;
|
---|
663 | tStack.push(interior->GetFront());
|
---|
664 | tStack.push(interior->GetBack());
|
---|
665 | }
|
---|
666 | }
|
---|
667 |
|
---|
668 | // restore the state of forced material
|
---|
669 | mUseForcedMaterial = fm;
|
---|
670 |
|
---|
671 | return true;
|
---|
672 | }
|
---|
673 |
|
---|
674 | bool
|
---|
675 | X3dExporter::ExportKdTreeRayDensity(const KdTree &tree)
|
---|
676 | {
|
---|
677 | stack<KdNode *> tStack;
|
---|
678 |
|
---|
679 | tStack.push(tree.GetRoot());
|
---|
680 |
|
---|
681 | bool fm = mUseForcedMaterial;
|
---|
682 | mUseForcedMaterial = true;
|
---|
683 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
684 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
685 | while (!tStack.empty()) {
|
---|
686 | KdNode *node = tStack.top();
|
---|
687 | tStack.pop();
|
---|
688 | if (node->IsLeaf()) {
|
---|
689 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
690 | Mesh *mesh = new Mesh;
|
---|
691 |
|
---|
692 | // add 6 vertices of the box
|
---|
693 | int index = (int)mesh->mVertices.size();
|
---|
694 | for (int i=0; i < 8; i++) {
|
---|
695 | Vector3 v;
|
---|
696 | box.GetVertex(i, v);
|
---|
697 | mesh->mVertices.push_back(v);
|
---|
698 | }
|
---|
699 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
700 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
701 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
702 |
|
---|
703 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
704 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
705 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
706 |
|
---|
707 |
|
---|
708 | // set the mesh material according to the ray density
|
---|
709 | KdLeaf *leaf = (KdLeaf *) node;
|
---|
710 | if (leaf->mPassingRays.mRays) {
|
---|
711 | float importance = leaf->mPassingRays.mContributions/(float)leaf->mPassingRays.mRays;
|
---|
712 | // float importance = leaf->mPassingRays.mContributions/1000.0f;
|
---|
713 | // float importance = leaf->mPassingRays.mRays/1000.0f;
|
---|
714 | ///(float)leaf->mPassingRays.mRays;
|
---|
715 | // mForcedMaterial.mDiffuseColor.r = log10(leaf->mPassingRays.mRays)/3.0f;
|
---|
716 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
717 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
718 | ExportMesh(mesh);
|
---|
719 | }
|
---|
720 | delete mesh;
|
---|
721 | } else {
|
---|
722 | KdInterior *interior = (KdInterior *)node;
|
---|
723 | tStack.push(interior->mFront);
|
---|
724 | tStack.push(interior->mBack);
|
---|
725 | }
|
---|
726 | }
|
---|
727 | // restore the state of forced material
|
---|
728 | mUseForcedMaterial = fm;
|
---|
729 | return true;
|
---|
730 | }
|
---|
731 |
|
---|
732 |
|
---|
733 | struct BspSplitData
|
---|
734 | {
|
---|
735 | /// the current node
|
---|
736 | BspNode *mNode;
|
---|
737 |
|
---|
738 | vector<Plane3 *> mPlanes;
|
---|
739 | vector<bool> mSides;
|
---|
740 | bool mIsFront;
|
---|
741 | int mDepth;
|
---|
742 |
|
---|
743 | BspSplitData(BspNode *node):
|
---|
744 | mNode(node), mIsFront(false), mDepth(0)
|
---|
745 | {};
|
---|
746 |
|
---|
747 | BspSplitData(BspNode *node,
|
---|
748 | vector<Plane3 *> planes,
|
---|
749 | vector<bool> sides,
|
---|
750 | const bool isFront,
|
---|
751 | const int depth):
|
---|
752 | mNode(node), mPlanes(planes), mSides(sides),
|
---|
753 | mIsFront(isFront), mDepth(depth)
|
---|
754 | {};
|
---|
755 | };
|
---|
756 |
|
---|
757 | void X3dExporter::ExportLeavesGeometry(const BspTree &tree,
|
---|
758 | const vector<BspLeaf *> &leaves)
|
---|
759 | {
|
---|
760 | vector<BspLeaf *>::const_iterator it, it_end = leaves.end();
|
---|
761 |
|
---|
762 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
763 | {
|
---|
764 | PolygonContainer cell;
|
---|
765 | tree.ConstructGeometry(*it, cell);
|
---|
766 |
|
---|
767 | ExportPolygons(cell);
|
---|
768 |
|
---|
769 | CLEAR_CONTAINER(cell);
|
---|
770 | }
|
---|
771 | }
|
---|
772 |
|
---|
773 | void X3dExporter::ExportBspSplits(const BspTree &tree,
|
---|
774 | const bool exportDepth)
|
---|
775 | {
|
---|
776 | std::stack<BspSplitData> tStack;
|
---|
777 |
|
---|
778 | BspSplitData tData(tree.GetRoot());
|
---|
779 | tStack.push(tData);
|
---|
780 |
|
---|
781 | PolygonContainer polys;
|
---|
782 | vector <int> depths;
|
---|
783 |
|
---|
784 | int maxDepth = 0;
|
---|
785 |
|
---|
786 | while (!tStack.empty())
|
---|
787 | {
|
---|
788 | // filter polygons donw the tree
|
---|
789 | BspSplitData tData = tStack.top();
|
---|
790 | tStack.pop();
|
---|
791 |
|
---|
792 | if (tData.mNode->IsLeaf())
|
---|
793 | {
|
---|
794 | if (tData.mDepth > maxDepth)
|
---|
795 | maxDepth = tData.mDepth;
|
---|
796 | }
|
---|
797 | else
|
---|
798 | {
|
---|
799 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
800 |
|
---|
801 | // add current side of split plane
|
---|
802 | if (tData.mNode != tree.GetRoot())
|
---|
803 | tData.mSides.push_back(tData.mIsFront);
|
---|
804 |
|
---|
805 | // bounded plane is added to the polygons
|
---|
806 | Polygon3 *planePoly =
|
---|
807 | tree.GetBoundingBox().CrossSection(*interior->GetPlane());
|
---|
808 |
|
---|
809 | // do all the splits with the previous planes
|
---|
810 | for (int i = 0; i < (int)tData.mPlanes.size(); ++ i)
|
---|
811 | {
|
---|
812 | VertexContainer splitPts;
|
---|
813 |
|
---|
814 | if (planePoly->ClassifyPlane(*tData.mPlanes[i]) == Polygon3::SPLIT)
|
---|
815 | {
|
---|
816 | Polygon3 *frontPoly = new Polygon3();
|
---|
817 | Polygon3 *backPoly = new Polygon3();
|
---|
818 |
|
---|
819 | planePoly->Split(*tData.mPlanes[i], *frontPoly, *backPoly, splitPts);
|
---|
820 | DEL_PTR(planePoly);
|
---|
821 |
|
---|
822 | if(tData.mSides[i] == true)
|
---|
823 | {
|
---|
824 | planePoly = frontPoly;
|
---|
825 | DEL_PTR(backPoly);
|
---|
826 | }
|
---|
827 | else
|
---|
828 | {
|
---|
829 | planePoly = backPoly;
|
---|
830 | DEL_PTR(frontPoly);
|
---|
831 | }
|
---|
832 | }
|
---|
833 | }
|
---|
834 |
|
---|
835 | tData.mPlanes.push_back(interior->GetPlane()); // add plane to split planes
|
---|
836 |
|
---|
837 | if (planePoly->Valid())
|
---|
838 | {
|
---|
839 | polys.push_back(planePoly);
|
---|
840 | depths.push_back(tData.mDepth);
|
---|
841 | }
|
---|
842 | else
|
---|
843 | DEL_PTR(planePoly);
|
---|
844 |
|
---|
845 | // push the children on the stack
|
---|
846 | tStack.push(BspSplitData(interior->GetFront(), tData.mPlanes,
|
---|
847 | tData.mSides, true, tData.mDepth + 1));
|
---|
848 | tStack.push(BspSplitData(interior->GetBack(), tData.mPlanes,
|
---|
849 | tData.mSides, false, tData.mDepth + 1));
|
---|
850 | }
|
---|
851 | }
|
---|
852 |
|
---|
853 | if (maxDepth > 0)
|
---|
854 | {
|
---|
855 | mUseForcedMaterial = true;
|
---|
856 |
|
---|
857 | for (int i = 0; i < (int)polys.size(); ++ i)
|
---|
858 | {
|
---|
859 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
860 | float importance = (float)depths[i]/ (float)maxDepth;
|
---|
861 |
|
---|
862 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
863 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
864 |
|
---|
865 | ExportPolygon(polys[i]);
|
---|
866 | }
|
---|
867 | }
|
---|
868 | else
|
---|
869 | {
|
---|
870 | ExportPolygons(polys);
|
---|
871 | }
|
---|
872 |
|
---|
873 | CLEAR_CONTAINER(polys);
|
---|
874 | }
|
---|
875 |
|
---|
876 | void X3dExporter::ExportBspSplitPlanes(const BspTree &tree)
|
---|
877 | {
|
---|
878 | std::stack<BspNode *> tStack;
|
---|
879 |
|
---|
880 | tStack.push(tree.GetRoot());
|
---|
881 |
|
---|
882 | PolygonContainer polys;
|
---|
883 |
|
---|
884 | while (!tStack.empty())
|
---|
885 | {
|
---|
886 | // filter polygons donw the tree
|
---|
887 | BspNode *node = tStack.top();
|
---|
888 | tStack.pop();
|
---|
889 |
|
---|
890 | if (!node->IsLeaf())
|
---|
891 | {
|
---|
892 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
|
---|
893 |
|
---|
894 | // bounded plane is added to the polygons
|
---|
895 | polys.push_back(tree.GetBoundingBox().CrossSection(*interior->GetPlane()));
|
---|
896 |
|
---|
897 | // push the children on the stack
|
---|
898 | tStack.push(interior->GetBack());
|
---|
899 | tStack.push(interior->GetFront());
|
---|
900 | }
|
---|
901 | }
|
---|
902 |
|
---|
903 | ExportPolygons(polys);
|
---|
904 | CLEAR_CONTAINER(polys);
|
---|
905 | }
|
---|