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 "VrmlExporter.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 | #include "VssTree.h"
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12 | #include "VspBspTree.h"
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13 | #include "HierarchyManager.h"
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14 | #include "RssTree.h"
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15 | #include "Beam.h"
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16 | #include "KdIntersectable.h"
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17 |
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18 |
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19 | namespace GtpVisibilityPreprocessor {
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20 |
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21 |
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22 | VrmlExporter::VrmlExporter(const string filename):Exporter(filename)
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23 | {
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24 | stream.open(mFilename.c_str());
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25 | stream<<"#VRML V2.0 utf8"<<endl;
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26 | }
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27 |
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28 |
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29 | VrmlExporter::~VrmlExporter()
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30 | {
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31 | stream.close();
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32 | }
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33 |
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34 |
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35 | bool VrmlExporter::ExportRays(const RayContainer &rays,
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36 | const float length,
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37 | const RgbColor &color)
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38 | {
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39 | if (rays.empty())
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40 | return false;
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41 | RayContainer::const_iterator ri = rays.begin();
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42 |
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43 | stream<<"Shape {"<<endl;
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44 | stream<<"appearance Appearance {"<<endl;
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45 | stream << "material Material { diffuseColor=\"" << color.r << " " << color.g << " "
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46 | << color.b << "}" << endl;
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47 | stream<<"}"<<endl;
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48 |
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49 | stream<<"geometry IndexedLineSet { coordIndex [" << endl;
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50 |
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51 | int index = 0;
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52 | for (; ri != rays.end(); ri++)
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53 | {
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54 | stream << index << " " << index + 1 << " -1\n";
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55 | index += 2;
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56 | }
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57 |
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58 | stream << "]"<<endl;
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59 |
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60 | stream << "coord Coordinate { point [" << endl;
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61 |
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62 | ri = rays.begin();
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63 | for (; ri != rays.end(); ri++)
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64 | {
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65 | Vector3 a = (*ri)->GetLoc();
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66 |
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67 | Vector3 b;
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68 |
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69 | if (length < 0)
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70 | {
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71 | b = (*ri)->GetLoc() - length*(*ri)->GetDir();
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72 | }
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73 | else
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74 | {
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75 | if ((*ri)->intersections.empty())
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76 | b = (*ri)->GetLoc() + length*(*ri)->GetDir();
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77 | else
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78 | b = (*ri)->Extrap((*ri)->intersections[0].mT);
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79 | }
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80 |
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81 | stream << a.x << " " << a.y << " " << a.z << " ,";
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82 | stream << b.x << " " << b.y << " " << b.z << " ,\n";
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83 | }
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84 | stream << "]" << endl;
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85 | stream << "}" << endl;
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86 | stream << "}" << endl;
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87 | stream << "}" << endl;
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88 |
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89 | return true;
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90 | }
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91 |
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92 |
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93 | bool VrmlExporter::ExportRays(const VssRayContainer &rays,
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94 | const RgbColor &color)
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95 | {
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96 |
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97 | if (rays.empty())
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98 | return false;
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99 |
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100 | stream << "Shape {" << endl;
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101 | stream << "appearance Appearance {" << endl;
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102 | stream << "material Material {" << endl;
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103 | stream << "diffuseColor " << color.r << " " << color.g << " " << color.b << endl;
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104 | stream << "}" << endl; // end material
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105 | stream << "}" << endl; // end appearance
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106 |
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107 | stream << "geometry IndexedLineSet { coordIndex [" << endl;
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108 |
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109 | int index = 0;
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110 | VssRayContainer::const_iterator ri = rays.begin();
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111 |
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112 | for (; ri != rays.end(); ++ ri)
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113 | {
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114 | stream << index << " " << index + 1 << " -1\n";
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115 | index += 2 ;
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116 | }
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117 |
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118 | stream << "]" << endl;
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119 |
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120 | stream << "coord Coordinate { point [" << endl;
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121 |
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122 | for (ri = rays.begin(); ri != rays.end(); ++ ri)
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123 | {
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124 | const Vector3 a = (*ri)->GetOrigin();
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125 | const Vector3 b = (*ri)->mTerminationObject ? (*ri)->GetTermination() : a + 1000 * Normalize((*ri)->GetDir());
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126 | //const Vector3 b = (*ri)->GetTermination(); // matt: change back!!
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127 |
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128 | stream << a.x << " " << a.y << " " << a.z << " ,";
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129 | stream << b.x << " " << b.y << " " << b.z << " ,\n";
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130 | }
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131 |
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132 | stream << "]" << endl;
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133 | stream << "}" << endl;
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134 | stream << "}" << endl;
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135 | stream << "}" << endl;
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136 | //stream << "}" << endl;
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137 |
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138 | return true;
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139 | }
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140 |
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141 |
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142 | void VrmlExporter::ExportSceneNode(SceneGraphNode *node)
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143 | {
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144 | stream << "Group {" << endl;
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145 |
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146 | SceneGraphNodeContainer::iterator ni = node->mChildren.begin();
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147 |
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148 | for (; ni != node->mChildren.end(); ni++)
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149 | {
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150 | ExportSceneNode(*ni);
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151 | }
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152 | ObjectContainer::const_iterator mi = node->mGeometry.begin();
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153 |
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154 | for (; mi != node->mGeometry.end(); mi++)
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155 | {
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156 | // export the transform...
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157 | ExportIntersectable(*mi);
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158 | }
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159 |
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160 | stream<<"</Group>"<<endl;
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161 | }
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162 |
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163 |
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164 | void VrmlExporter::ExportIntersectable(Intersectable *object)
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165 | {
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166 | switch (object->Type())
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167 | {
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168 | case Intersectable::MESH_INSTANCE:
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169 | ExportMeshInstance((MeshInstance *)object);
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170 | break;
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171 | case Intersectable::TRANSFORMED_MESH_INSTANCE:
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172 | ExportTransformedMeshInstance(dynamic_cast<TransformedMeshInstance *>(object));
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173 | break;
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174 | case Intersectable::VIEW_CELL:
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175 | ExportViewCell(dynamic_cast<ViewCell *>(object));
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176 | break;
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177 | case Intersectable::KD_INTERSECTABLE:
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178 | ExportKdIntersectable(*(dynamic_cast<KdIntersectable *>(object)));
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179 | break;
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180 | default:
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181 | cerr << "Sorry the export for object type " << Intersectable::GetTypeName(object) << " is not available yet" << endl;
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182 | break;
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183 | }
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184 | }
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185 |
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186 |
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187 | void VrmlExporter::ExportMeshInstance(MeshInstance *object)
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188 | {
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189 | // $$JB$$
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190 | // in the future check whether the mesh was not already exported
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191 | // and use a reference to the that mesh instead
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192 | ExportMesh(object->GetMesh());
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193 | }
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194 |
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195 |
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196 | void VrmlExporter::ExportTransformedMeshInstance(TransformedMeshInstance *mi)
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197 | {
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198 | Mesh mesh(*mi->GetMesh());
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199 |
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200 | Matrix4x4 m;
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201 | mi->GetWorldTransform(m);
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202 | mesh.ApplyTransformation(m);
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203 |
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204 | ExportMesh(&mesh);
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205 | }
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206 |
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207 |
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208 | void VrmlExporter::ExportViewCells(const ViewCellContainer &viewCells)
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209 | {
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210 | ViewCellContainer::const_iterator it, it_end = viewCells.end();
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211 |
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212 | for (it = viewCells.begin(); it != it_end; ++ it)
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213 | {
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214 | ExportViewCell(*it);
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215 | }
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216 | }
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217 |
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218 |
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219 | void VrmlExporter::ExportBspLeaves(const BspTree &tree, const int maxPvs)
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220 | {
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221 | stack<pair<BspNode *, BspNodeGeometry *> > tStack;
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222 | ViewCell::NewMail();
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223 |
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224 | BspNodeGeometry *geom = new BspNodeGeometry();
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225 | tree.ConstructGeometry(tree.GetRoot(), *geom);
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226 |
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227 | tStack.push(pair<BspNode *, BspNodeGeometry *>(tree.GetRoot(), geom));
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228 |
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229 | // color code pvs
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230 | if (maxPvs)
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231 | {
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232 | mUseForcedMaterial = true;
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233 | }
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234 |
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235 | while (!tStack.empty())
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236 | {
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237 | BspNode *node = tStack.top().first;
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238 | BspNodeGeometry *cell = tStack.top().second;
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239 | tStack.pop();
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240 |
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241 | if (!node->IsLeaf())
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242 | {
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243 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
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244 |
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245 | BspNodeGeometry *front = new BspNodeGeometry();
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246 | BspNodeGeometry *back = new BspNodeGeometry();
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247 |
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248 | cell->SplitGeometry(*front,
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249 | *back,
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250 | interior->GetPlane(),
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251 | tree.GetBoundingBox(),
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252 | tree.GetEpsilon());
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253 |
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254 | tStack.push(pair<BspNode *, BspNodeGeometry *>(interior->GetFront(), front));
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255 | tStack.push(pair<BspNode *, BspNodeGeometry *>(interior->GetBack(), back));
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256 | }
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257 | else
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258 | {
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259 | if (maxPvs)
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260 | {
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261 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(node);
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262 |
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263 | mForcedMaterial.mDiffuseColor.b = 1.0f;
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264 | const float importance = (float)leaf->GetViewCell()->GetPvs().CountObjectsInPvs() / (float)maxPvs;
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265 |
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266 | mForcedMaterial.mDiffuseColor.r = importance;
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267 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
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268 | }
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269 |
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270 | ExportPolygons(cell->GetPolys());
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271 | }
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272 |
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273 | DEL_PTR(cell);
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274 | }
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275 | }
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276 |
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277 |
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278 | void VrmlExporter::ExportViewCell(ViewCell *viewCell)
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279 | {
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280 | if (viewCell->GetMesh())
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281 | {
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282 | ExportMesh(viewCell->GetMesh());
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283 | }
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284 | }
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285 |
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286 |
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287 | void VrmlExporter::ExportMesh(Mesh *mesh)
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288 | {
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289 | stream << "Shape {" << endl;
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290 | stream << "appearance Appearance {" << endl;
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291 |
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292 | // $$ tmp -> random material
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293 |
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294 | float r, g, b;
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295 |
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296 | if (mUseForcedMaterial)
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297 | {
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298 | r = mForcedMaterial.mDiffuseColor.r;
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299 | g = mForcedMaterial.mDiffuseColor.g;
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300 | b = mForcedMaterial.mDiffuseColor.b;
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301 |
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302 | }
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303 | else if (mesh->mMaterial)
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304 | {
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305 | r = mesh->mMaterial->mDiffuseColor.r;
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306 | g = mesh->mMaterial->mDiffuseColor.g;
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307 | b = mesh->mMaterial->mDiffuseColor.b;
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308 | }
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309 | else
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310 | {
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311 | r = RandomValue(0.5, 1.0);
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312 | g = RandomValue(0.5, 1.0);
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313 | b = RandomValue(0.5, 1.0);
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314 | }
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315 |
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316 | stream << "material Material {" << endl;
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317 | stream << "diffuseColor " << r << " " << g << " " << b << endl;
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318 | stream << "specularColor 0.0 0.0 0.0" << endl;
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319 |
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320 | stream << "}" << endl; // end material
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321 | stream << "}" << endl; // end apperance
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322 |
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323 |
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324 | // wireframe modes => set indexed lines
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325 | if (mWireframe)
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326 | {
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327 | stream << "geometry IndexedLineSet {" << endl;
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328 | }
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329 | else
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330 | {
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331 | //stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
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332 | stream << "geometry IndexedFaceSet {" << endl;
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333 | }
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334 |
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335 |
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336 | stream << "coordIndex [" << endl;
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337 |
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338 | FaceContainer::const_iterator fi = mesh->mFaces.begin();
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339 |
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340 | int index = 0;
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341 |
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342 | for (; fi != mesh->mFaces.end(); fi++)
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343 | {
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344 | Face *face = *fi;
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345 |
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346 | VertexIndexContainer::const_iterator vi = face->mVertexIndices.begin();
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347 |
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348 | for (; vi != face->mVertexIndices.end(); ++ vi)
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349 | {
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350 | stream << *vi << " ";
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351 | }
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352 |
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353 | if (mWireframe) // final line to finish polygon
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354 | {
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355 | stream << (*face->mVertexIndices.begin()) << " ";
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356 | }
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357 |
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358 | stream << "-1" << endl;
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359 | }
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360 |
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361 | stream << "]" << endl; // end coordIndex
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362 |
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363 |
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364 | stream << "coord Coordinate {" << endl;
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365 | stream << "point [" << endl;
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366 |
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367 | VertexContainer::const_iterator vi = mesh->mVertices.begin();
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368 |
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369 | for (; vi != mesh->mVertices.end(); vi++)
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370 | {
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371 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
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372 | stream << "," << endl;
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373 | }
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374 |
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375 | stream << "]" << endl; // end point
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376 | stream << "}" << endl; // end coord
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377 | stream << "}" << endl; // end geometry
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378 |
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379 | stream << "}" << endl; // end shape
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380 | }
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381 |
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382 |
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383 | void VrmlExporter::ExportPolygon(Polygon3 *poly)
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384 | {
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385 | stream << "Shape {" << endl;
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386 | stream << "appearance Appearance {" << endl;
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387 |
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388 | // $$ tmp -> random material
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389 | float r, g, b;
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390 |
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391 | if (mUseForcedMaterial)
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392 | {
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393 | r = mForcedMaterial.mDiffuseColor.r;
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394 | g = mForcedMaterial.mDiffuseColor.g;
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395 | b = mForcedMaterial.mDiffuseColor.b;
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396 | }
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397 | else if (poly->mMaterial)
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398 | {
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399 | r = poly->mMaterial->mDiffuseColor.r;
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400 | g = poly->mMaterial->mDiffuseColor.g;
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401 | b = poly->mMaterial->mDiffuseColor.b;
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402 | }
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403 | else
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404 | {
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405 | r = RandomValue(0.5, 1.0);
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406 | g = RandomValue(0.5, 1.0);
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407 | b = RandomValue(0.5, 1.0);
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408 | }
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409 |
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410 | stream << "material Material {" << endl;
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411 | stream << "diffuseColor " << r << " " << g << " " << b << endl;
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412 | stream << "specularColor 0.0 0.0 0.0" << endl;
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413 |
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414 | stream << "}" << endl; // end material
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415 | stream << "}" << endl; // end apperance
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416 |
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417 |
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418 | // wireframe modes => set indexed lines
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419 | if (mWireframe)
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420 | {
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421 | stream << "geometry IndexedLineSet {" << endl;
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422 | }
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423 | else
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424 | {
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425 | //stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
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426 | stream << "geometry IndexedFaceSet {" << endl;
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427 | }
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428 |
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429 |
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430 | stream << "coordIndex [" << endl;
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431 |
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432 |
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433 | int index = 0;
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434 |
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435 | VertexContainer::const_iterator vi;
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436 |
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437 | for (index = 0; index < (int)poly->mVertices.size(); ++ index)
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438 | {
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439 | stream << index << " ";
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440 | }
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441 |
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442 | if (mWireframe) // final line to finish polygon
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443 | {
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444 | stream << "0 ";
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445 | }
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446 |
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447 | stream << "-1" << endl;
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448 |
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449 | stream << "]" << endl; // end coordIndex
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450 |
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451 |
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452 | stream << "coord Coordinate {" << endl;
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453 | stream << "point [" << endl;
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454 |
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455 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
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456 | {
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457 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
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458 | stream << "," << endl;
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459 | }
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460 |
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461 | stream << "]" << endl; // end point
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462 | stream << "}" << endl; // end coord
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463 | stream << "}" << endl; // end geometry
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464 |
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465 | stream << "}" << endl; // end shape
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466 | }
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467 |
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468 |
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469 | void VrmlExporter::ExportPolygons(const PolygonContainer &polys)
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470 | {
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471 | stream << "Shape {" << endl;
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472 | stream << "appearance Appearance {" << endl;
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473 |
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474 | // $$ tmp -> random material
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475 |
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476 | float r, g, b;
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477 |
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478 | if (mUseForcedMaterial)
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479 | {
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480 | r = mForcedMaterial.mDiffuseColor.r;
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481 | g = mForcedMaterial.mDiffuseColor.g;
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482 | b = mForcedMaterial.mDiffuseColor.b;
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483 | }
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484 | else
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485 | {
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486 | r = RandomValue(0.5, 1.0);
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487 | g = RandomValue(0.5, 1.0);
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488 | b = RandomValue(0.5, 1.0);
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489 | }
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490 |
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491 | stream << "material Material {" << endl;
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492 | stream << "diffuseColor " << r << " " << g << " " << b << endl;
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493 | stream << "specularColor 0.0 0.0 0.0" << endl;
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494 |
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495 | stream << "}" << endl; // end material
|
---|
496 | stream << "}" << endl; // end apperance
|
---|
497 |
|
---|
498 | // wireframe modes => set indexed lines
|
---|
499 | if (mWireframe)
|
---|
500 | {
|
---|
501 | stream << "geometry IndexedLineSet {" << endl;
|
---|
502 | }
|
---|
503 | else
|
---|
504 | {
|
---|
505 | //stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
|
---|
506 | stream << "geometry IndexedFaceSet {" << endl;
|
---|
507 | }
|
---|
508 |
|
---|
509 | stream << "coordIndex [" << endl;
|
---|
510 |
|
---|
511 | int index = 0;
|
---|
512 |
|
---|
513 | PolygonContainer::const_iterator pit;
|
---|
514 |
|
---|
515 | VertexContainer::const_iterator vi;
|
---|
516 |
|
---|
517 | for (pit = polys.begin(); pit != polys.end(); ++ pit)
|
---|
518 | {
|
---|
519 | Polygon3 *poly = *pit;
|
---|
520 | int startIdx = index;
|
---|
521 |
|
---|
522 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
|
---|
523 | {
|
---|
524 | stream << index ++ << " ";
|
---|
525 | }
|
---|
526 |
|
---|
527 | stream << startIdx << " ";// finish line
|
---|
528 | stream << "-1" << endl;
|
---|
529 | }
|
---|
530 |
|
---|
531 | stream << "]" << endl; // end coordIndex
|
---|
532 |
|
---|
533 | stream << "coord Coordinate {" << endl;
|
---|
534 | stream << "point [" << endl;
|
---|
535 |
|
---|
536 |
|
---|
537 | for (pit = polys.begin(); pit != polys.end(); ++ pit)
|
---|
538 | {
|
---|
539 | Polygon3 *poly = *pit;
|
---|
540 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
|
---|
541 | {
|
---|
542 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
|
---|
543 | stream << "," << endl;
|
---|
544 | }
|
---|
545 | }
|
---|
546 |
|
---|
547 | stream << "]" << endl; // end point
|
---|
548 | stream << "}" << endl; // end coord
|
---|
549 | stream << "}" << endl; // end geometry
|
---|
550 |
|
---|
551 | stream << "}" << endl; // end shape
|
---|
552 | }
|
---|
553 |
|
---|
554 |
|
---|
555 | bool VrmlExporter::ExportBox(const AxisAlignedBox3 &box)
|
---|
556 | {
|
---|
557 | Mesh *mesh = new Mesh;
|
---|
558 |
|
---|
559 | // add 8 vertices of the box
|
---|
560 | int index = (int)mesh->mVertices.size();
|
---|
561 |
|
---|
562 | for (int i=0; i < 8; i++)
|
---|
563 | {
|
---|
564 | Vector3 v;
|
---|
565 | box.GetVertex(i, v);
|
---|
566 | mesh->mVertices.push_back(v);
|
---|
567 | }
|
---|
568 |
|
---|
569 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
570 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
571 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
572 |
|
---|
573 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
574 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
575 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
576 |
|
---|
577 | ExportMesh(mesh);
|
---|
578 |
|
---|
579 | delete mesh;
|
---|
580 |
|
---|
581 | return true;
|
---|
582 | }
|
---|
583 |
|
---|
584 | bool VrmlExporter::ExportBspTree(const BspTree &tree)
|
---|
585 | {
|
---|
586 | if (mExportRayDensity)
|
---|
587 | {
|
---|
588 | return ExportBspTreeRayDensity(tree);
|
---|
589 | }
|
---|
590 |
|
---|
591 | bool savedWireframe = mWireframe;
|
---|
592 |
|
---|
593 | SetWireframe();
|
---|
594 |
|
---|
595 | ExportBox(tree.GetBoundingBox());
|
---|
596 |
|
---|
597 | if (!savedWireframe)
|
---|
598 | SetFilled();
|
---|
599 |
|
---|
600 | // export view cells
|
---|
601 | ExportBspLeaves(tree);
|
---|
602 |
|
---|
603 | return true;
|
---|
604 | }
|
---|
605 |
|
---|
606 |
|
---|
607 | bool VrmlExporter::ExportKdTree(const KdTree &tree, const bool exportGeometry)
|
---|
608 | {
|
---|
609 | if (mExportRayDensity)
|
---|
610 | {
|
---|
611 | return ExportKdTreeRayDensity(tree);
|
---|
612 | }
|
---|
613 |
|
---|
614 | stack<KdNode *> tStack;
|
---|
615 |
|
---|
616 | tStack.push(tree.GetRoot());
|
---|
617 |
|
---|
618 | Mesh *mesh = new Mesh;
|
---|
619 |
|
---|
620 | while (!tStack.empty())
|
---|
621 | {
|
---|
622 | KdNode *node = tStack.top();
|
---|
623 |
|
---|
624 | tStack.pop();
|
---|
625 |
|
---|
626 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
627 | // add 6 vertices of the box
|
---|
628 | int index = (int)mesh->mVertices.size();
|
---|
629 |
|
---|
630 | for (int i=0; i < 8; i++)
|
---|
631 | {
|
---|
632 | Vector3 v;
|
---|
633 | box.GetVertex(i, v);
|
---|
634 | mesh->mVertices.push_back(v);
|
---|
635 | }
|
---|
636 |
|
---|
637 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
638 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
639 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
640 |
|
---|
641 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
642 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
643 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
644 |
|
---|
645 | if (!node->IsLeaf())
|
---|
646 | {
|
---|
647 | KdInterior *interior = (KdInterior *)node;
|
---|
648 | tStack.push(interior->mFront);
|
---|
649 | tStack.push(interior->mBack);
|
---|
650 | }
|
---|
651 | }
|
---|
652 |
|
---|
653 | ExportMesh(mesh);
|
---|
654 |
|
---|
655 | delete mesh;
|
---|
656 | return true;
|
---|
657 | }
|
---|
658 |
|
---|
659 |
|
---|
660 | bool VrmlExporter::ExportVssTree(const VssTree &tree)
|
---|
661 | {
|
---|
662 | stack<VssTreeNode *> tStack;
|
---|
663 |
|
---|
664 | tStack.push(tree.GetRoot());
|
---|
665 |
|
---|
666 | Mesh *mesh = new Mesh;
|
---|
667 | VssRayContainer rays;
|
---|
668 |
|
---|
669 | while (!tStack.empty())
|
---|
670 | {
|
---|
671 | VssTreeNode *node = tStack.top();
|
---|
672 |
|
---|
673 | tStack.pop();
|
---|
674 |
|
---|
675 | if (!node->IsLeaf())
|
---|
676 | {
|
---|
677 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
678 |
|
---|
679 | tStack.push(interior->front);
|
---|
680 | tStack.push(interior->back);
|
---|
681 | }
|
---|
682 | else
|
---|
683 | {
|
---|
684 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
685 | AxisAlignedBox3 box;
|
---|
686 | box = tree.GetBBox(leaf);
|
---|
687 | IncludeBoxInMesh(box, *mesh);
|
---|
688 |
|
---|
689 | if (tree.ValidLeaf(leaf))
|
---|
690 | {
|
---|
691 | Vector3 origin = box.Center();
|
---|
692 | box = tree.GetDirBBox(leaf);
|
---|
693 | VssRay *ray;
|
---|
694 |
|
---|
695 | const int indices[][2] = {{0,0}, {0,1}, {1,1}, {1,0}};
|
---|
696 | MeshInstance dummy(mesh);
|
---|
697 | for (int i=0; i < 4; i++)
|
---|
698 | {
|
---|
699 | // Vector3 v = box.GetVertex(indices[i][0], indices[i][1], 0);
|
---|
700 | Vector3 v = box.Center();
|
---|
701 |
|
---|
702 | Vector3 direction = VssRay::GetDirection(v.x, v.y);
|
---|
703 | if (Magnitude(direction) > Limits::Small)
|
---|
704 | {
|
---|
705 | direction.Normalize();
|
---|
706 | }
|
---|
707 | else
|
---|
708 | {
|
---|
709 | direction = Vector3(0, 1, 0);
|
---|
710 | }
|
---|
711 |
|
---|
712 | const float k = 100.0f * leaf->GetImportance();
|
---|
713 |
|
---|
714 |
|
---|
715 | // get 4 corners of the ray directions
|
---|
716 | ray = new VssRay(origin, origin + (direction * k), NULL, &dummy);
|
---|
717 | rays.push_back(ray);
|
---|
718 | }
|
---|
719 | }
|
---|
720 | }
|
---|
721 | }
|
---|
722 |
|
---|
723 | ExportMesh(mesh);
|
---|
724 | ExportRays(rays);
|
---|
725 | CLEAR_CONTAINER(rays);
|
---|
726 |
|
---|
727 | delete mesh;
|
---|
728 | return true;
|
---|
729 | }
|
---|
730 |
|
---|
731 |
|
---|
732 | bool VrmlExporter::ExportVssTree2(const VssTree &tree,
|
---|
733 | const Vector3 direction)
|
---|
734 | {
|
---|
735 | stack<VssTreeNode *> tStack;
|
---|
736 |
|
---|
737 | mUseForcedMaterial = true;
|
---|
738 |
|
---|
739 | Vector3 dirParam;
|
---|
740 |
|
---|
741 | dirParam.x = VssRay::GetDirParam(0, Normalize(direction));
|
---|
742 | dirParam.y = VssRay::GetDirParam(1, Normalize(direction));
|
---|
743 |
|
---|
744 | float maxImportance = 0.0f;
|
---|
745 |
|
---|
746 | tStack.push(tree.GetRoot());
|
---|
747 |
|
---|
748 | while (!tStack.empty())
|
---|
749 | {
|
---|
750 | VssTreeNode *node = tStack.top();
|
---|
751 | tStack.pop();
|
---|
752 |
|
---|
753 | if (!node->IsLeaf())
|
---|
754 | {
|
---|
755 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
756 |
|
---|
757 | if (interior->axis < 3)
|
---|
758 | {
|
---|
759 | tStack.push(interior->front);
|
---|
760 | tStack.push(interior->back);
|
---|
761 | }
|
---|
762 | else
|
---|
763 | {
|
---|
764 | if (dirParam[interior->axis-3] < interior->position)
|
---|
765 | tStack.push(interior->back);
|
---|
766 | else
|
---|
767 | tStack.push(interior->front);
|
---|
768 | }
|
---|
769 | }
|
---|
770 | else
|
---|
771 | {
|
---|
772 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
773 |
|
---|
774 | if (tree.ValidLeaf(leaf))
|
---|
775 | {
|
---|
776 | float i = leaf->GetImportance();
|
---|
777 |
|
---|
778 | if (i > maxImportance)
|
---|
779 | maxImportance = i;
|
---|
780 | }
|
---|
781 | }
|
---|
782 | }
|
---|
783 |
|
---|
784 | tStack.push(tree.GetRoot());
|
---|
785 |
|
---|
786 | while (!tStack.empty())
|
---|
787 | {
|
---|
788 | VssTreeNode *node = tStack.top();
|
---|
789 | tStack.pop();
|
---|
790 |
|
---|
791 | if (!node->IsLeaf())
|
---|
792 | {
|
---|
793 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
794 |
|
---|
795 | if (interior->axis < 3)
|
---|
796 | {
|
---|
797 | tStack.push(interior->front);
|
---|
798 | tStack.push(interior->back);
|
---|
799 | }
|
---|
800 | else
|
---|
801 | {
|
---|
802 | if (dirParam[interior->axis-3] < interior->position)
|
---|
803 | tStack.push(interior->back);
|
---|
804 | else
|
---|
805 | tStack.push(interior->front);
|
---|
806 | }
|
---|
807 | }
|
---|
808 | else
|
---|
809 | {
|
---|
810 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
811 |
|
---|
812 | if (tree.ValidLeaf(leaf))
|
---|
813 | {
|
---|
814 | AxisAlignedBox3 box;
|
---|
815 | box = tree.GetBBox(leaf);
|
---|
816 | Mesh *mesh = new Mesh;
|
---|
817 | IncludeBoxInMesh(box, *mesh);
|
---|
818 |
|
---|
819 | // get 4 corners of the ray directions
|
---|
820 |
|
---|
821 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
822 | mForcedMaterial.mDiffuseColor.r = leaf->GetImportance()/maxImportance;
|
---|
823 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
824 |
|
---|
825 | ExportMesh(mesh);
|
---|
826 | delete mesh;
|
---|
827 | }
|
---|
828 | }
|
---|
829 | }
|
---|
830 |
|
---|
831 | mUseForcedMaterial = false;
|
---|
832 |
|
---|
833 | return true;
|
---|
834 | }
|
---|
835 |
|
---|
836 |
|
---|
837 | bool VrmlExporter::ExportBspTreeRayDensity(const BspTree &tree)
|
---|
838 | {
|
---|
839 | stack<BspNode *> tStack;
|
---|
840 |
|
---|
841 | tStack.push(tree.GetRoot());
|
---|
842 |
|
---|
843 | bool fm = mUseForcedMaterial;
|
---|
844 |
|
---|
845 | mUseForcedMaterial = true;
|
---|
846 |
|
---|
847 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
848 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
849 |
|
---|
850 | while (!tStack.empty())
|
---|
851 | {
|
---|
852 | BspNode *node = tStack.top();
|
---|
853 | tStack.pop();
|
---|
854 |
|
---|
855 | if (node->IsLeaf())
|
---|
856 | {
|
---|
857 | ViewCell *vc = dynamic_cast<BspLeaf *>(node)->GetViewCell();
|
---|
858 | #if 0
|
---|
859 | // set the mesh material according to the ray density
|
---|
860 | if (vc->mPassingRays.mRays)
|
---|
861 | {
|
---|
862 | float importance =
|
---|
863 | vc->mPassingRays.mContributions / (float)vc->mPassingRays.mRays;
|
---|
864 |
|
---|
865 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
866 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
867 | ExportViewCell(vc);
|
---|
868 |
|
---|
869 | }
|
---|
870 | #endif
|
---|
871 | }
|
---|
872 | else
|
---|
873 | {
|
---|
874 | BspInterior *interior = (BspInterior *)node;
|
---|
875 | tStack.push(interior->GetFront());
|
---|
876 | tStack.push(interior->GetBack());
|
---|
877 | }
|
---|
878 | }
|
---|
879 |
|
---|
880 | // restore the state of forced material
|
---|
881 | mUseForcedMaterial = fm;
|
---|
882 |
|
---|
883 | return true;
|
---|
884 | }
|
---|
885 |
|
---|
886 |
|
---|
887 | bool VrmlExporter::ExportKdTreeRayDensity(const KdTree &tree)
|
---|
888 | {
|
---|
889 | stack<KdNode *> tStack;
|
---|
890 |
|
---|
891 | tStack.push(tree.GetRoot());
|
---|
892 |
|
---|
893 | bool fm = mUseForcedMaterial;
|
---|
894 |
|
---|
895 | mUseForcedMaterial = true;
|
---|
896 |
|
---|
897 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
898 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
899 |
|
---|
900 |
|
---|
901 | while (!tStack.empty())
|
---|
902 | {
|
---|
903 | KdNode *node = tStack.top();
|
---|
904 | tStack.pop();
|
---|
905 |
|
---|
906 | if (node->IsLeaf())
|
---|
907 | {
|
---|
908 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
909 | Mesh *mesh = new Mesh;
|
---|
910 |
|
---|
911 | // add 6 vertices of the box
|
---|
912 | int index = (int)mesh->mVertices.size();
|
---|
913 | for (int i=0; i < 8; i++)
|
---|
914 | {
|
---|
915 | Vector3 v;
|
---|
916 | box.GetVertex(i, v);
|
---|
917 | mesh->mVertices.push_back(v);
|
---|
918 | }
|
---|
919 |
|
---|
920 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
921 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
922 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
923 |
|
---|
924 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
925 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
926 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
927 |
|
---|
928 | // set the mesh material according to the ray density
|
---|
929 | KdLeaf *leaf = (KdLeaf *) node;
|
---|
930 |
|
---|
931 | if (leaf->mPassingRays.mRays)
|
---|
932 | {
|
---|
933 | const float importance =
|
---|
934 | leaf->mPassingRays.mContributions/(float)leaf->mPassingRays.mRays;
|
---|
935 | // float importance = leaf->mPassingRays.mContributions/1000.0f;
|
---|
936 | // float importance = leaf->mPassingRays.mRays/1000.0f;
|
---|
937 | ///(float)leaf->mPassingRays.mRays;
|
---|
938 | // mForcedMaterial.mDiffuseColor.r = log10(leaf->mPassingRays.mRays)/3.0f;
|
---|
939 |
|
---|
940 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
941 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
942 |
|
---|
943 | ExportMesh(mesh);
|
---|
944 | }
|
---|
945 |
|
---|
946 | delete mesh;
|
---|
947 | }
|
---|
948 | else
|
---|
949 | {
|
---|
950 | KdInterior *interior = (KdInterior *)node;
|
---|
951 | tStack.push(interior->mFront);
|
---|
952 | tStack.push(interior->mBack);
|
---|
953 | }
|
---|
954 | }
|
---|
955 |
|
---|
956 | // restore the state of forced material
|
---|
957 | mUseForcedMaterial = fm;
|
---|
958 |
|
---|
959 | return true;
|
---|
960 | }
|
---|
961 |
|
---|
962 |
|
---|
963 | struct BspSplitData
|
---|
964 | {
|
---|
965 | /// the current node
|
---|
966 | BspNode *mNode;
|
---|
967 |
|
---|
968 | vector<Plane3> mPlanes;
|
---|
969 | vector<bool> mSides;
|
---|
970 | bool mIsFront;
|
---|
971 | int mDepth;
|
---|
972 |
|
---|
973 | BspSplitData(BspNode *node):
|
---|
974 | mNode(node), mIsFront(false), mDepth(0)
|
---|
975 | {};
|
---|
976 |
|
---|
977 | BspSplitData(BspNode *node,
|
---|
978 | vector<Plane3> planes,
|
---|
979 | vector<bool> sides,
|
---|
980 | const bool isFront,
|
---|
981 | const int depth):
|
---|
982 | mNode(node), mPlanes(planes), mSides(sides),
|
---|
983 | mIsFront(isFront), mDepth(depth)
|
---|
984 | {};
|
---|
985 | };
|
---|
986 |
|
---|
987 |
|
---|
988 | void VrmlExporter::ExportLeavesGeometry(const BspTree &tree,
|
---|
989 | const vector<BspLeaf *> &leaves)
|
---|
990 | {
|
---|
991 | vector<BspLeaf *>::const_iterator it, it_end = leaves.end();
|
---|
992 |
|
---|
993 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
994 | {
|
---|
995 | BspNodeGeometry geom;
|
---|
996 | tree.ConstructGeometry(*it, geom);
|
---|
997 |
|
---|
998 | ExportPolygons(geom.GetPolys());
|
---|
999 | }
|
---|
1000 | }
|
---|
1001 |
|
---|
1002 |
|
---|
1003 | void VrmlExporter::ExportBspNodeSplits(BspNode *root,
|
---|
1004 | const AxisAlignedBox3 &box,
|
---|
1005 | const bool exportDepth,
|
---|
1006 | const bool epsilon)
|
---|
1007 | {
|
---|
1008 | std::stack<BspSplitData> tStack;
|
---|
1009 |
|
---|
1010 | BspSplitData tData(root);
|
---|
1011 | tStack.push(tData);
|
---|
1012 |
|
---|
1013 | PolygonContainer polys;
|
---|
1014 | vector <int> depths;
|
---|
1015 |
|
---|
1016 | int maxDepth = 0;
|
---|
1017 |
|
---|
1018 | while (!tStack.empty())
|
---|
1019 | {
|
---|
1020 | // filter polygons donw the tree
|
---|
1021 | BspSplitData tData = tStack.top();
|
---|
1022 | tStack.pop();
|
---|
1023 |
|
---|
1024 | if (tData.mNode->IsLeaf())
|
---|
1025 | {
|
---|
1026 | if (tData.mDepth > maxDepth)
|
---|
1027 | maxDepth = tData.mDepth;
|
---|
1028 | }
|
---|
1029 | else
|
---|
1030 | {
|
---|
1031 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
1032 |
|
---|
1033 | // add current side of split plane
|
---|
1034 | if (tData.mNode != root)
|
---|
1035 | tData.mSides.push_back(tData.mIsFront);
|
---|
1036 |
|
---|
1037 | // bounded plane is added to the polygons
|
---|
1038 | Polygon3 *planePoly =
|
---|
1039 | box.CrossSection(interior->GetPlane());
|
---|
1040 |
|
---|
1041 | // do all the splits with the previous planes
|
---|
1042 | for (int i = 0; i < (int)tData.mPlanes.size(); ++ i)
|
---|
1043 | {
|
---|
1044 | if (planePoly->ClassifyPlane(tData.mPlanes[i], epsilon)
|
---|
1045 | == Polygon3::SPLIT)
|
---|
1046 | {
|
---|
1047 | Polygon3 *frontPoly = new Polygon3();
|
---|
1048 | Polygon3 *backPoly = new Polygon3();
|
---|
1049 |
|
---|
1050 | planePoly->Split(tData.mPlanes[i],
|
---|
1051 | *frontPoly,
|
---|
1052 | *backPoly,
|
---|
1053 | epsilon);
|
---|
1054 |
|
---|
1055 | DEL_PTR(planePoly);
|
---|
1056 |
|
---|
1057 | if(tData.mSides[i] == true)
|
---|
1058 | {
|
---|
1059 | planePoly = frontPoly;
|
---|
1060 | DEL_PTR(backPoly);
|
---|
1061 | }
|
---|
1062 | else
|
---|
1063 | {
|
---|
1064 | planePoly = backPoly;
|
---|
1065 | DEL_PTR(frontPoly);
|
---|
1066 | }
|
---|
1067 | }
|
---|
1068 | }
|
---|
1069 |
|
---|
1070 | tData.mPlanes.push_back(interior->GetPlane()); // add plane to split planes
|
---|
1071 |
|
---|
1072 | if (planePoly->Valid(epsilon))
|
---|
1073 | {
|
---|
1074 | polys.push_back(planePoly);
|
---|
1075 | depths.push_back(tData.mDepth);
|
---|
1076 | }
|
---|
1077 | else
|
---|
1078 | DEL_PTR(planePoly);
|
---|
1079 |
|
---|
1080 | // push the children on the stack
|
---|
1081 | tStack.push(BspSplitData(interior->GetFront(), tData.mPlanes,
|
---|
1082 | tData.mSides, true, tData.mDepth + 1));
|
---|
1083 | tStack.push(BspSplitData(interior->GetBack(), tData.mPlanes,
|
---|
1084 | tData.mSides, false, tData.mDepth + 1));
|
---|
1085 | }
|
---|
1086 | }
|
---|
1087 |
|
---|
1088 | if (maxDepth > 0)
|
---|
1089 | {
|
---|
1090 | mUseForcedMaterial = true;
|
---|
1091 |
|
---|
1092 | for (int i = 0; i < (int)polys.size(); ++ i)
|
---|
1093 | {
|
---|
1094 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
1095 | float importance = (float)depths[i]/ (float)maxDepth;
|
---|
1096 |
|
---|
1097 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
1098 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
1099 |
|
---|
1100 | ExportPolygon(polys[i]);
|
---|
1101 | }
|
---|
1102 | }
|
---|
1103 | else
|
---|
1104 | {
|
---|
1105 | ExportPolygons(polys);
|
---|
1106 | }
|
---|
1107 |
|
---|
1108 | CLEAR_CONTAINER(polys);
|
---|
1109 | }
|
---|
1110 |
|
---|
1111 |
|
---|
1112 | void VrmlExporter::ExportBspSplits(const BspTree &tree,
|
---|
1113 | const bool exportDepth)
|
---|
1114 | {
|
---|
1115 | ExportBspNodeSplits(tree.GetRoot(),
|
---|
1116 | tree.GetBoundingBox(),
|
---|
1117 | exportDepth,
|
---|
1118 | tree.GetEpsilon());
|
---|
1119 | }
|
---|
1120 |
|
---|
1121 |
|
---|
1122 | void VrmlExporter::ExportBspSplits(const VspBspTree &tree,
|
---|
1123 | const bool exportDepth)
|
---|
1124 | {
|
---|
1125 | ExportBspNodeSplits(tree.GetRoot(),
|
---|
1126 | tree.GetBoundingBox(),
|
---|
1127 | exportDepth,
|
---|
1128 | tree.GetEpsilon());
|
---|
1129 | }
|
---|
1130 |
|
---|
1131 |
|
---|
1132 | void VrmlExporter::ExportBspSplitPlanes(const BspTree &tree)
|
---|
1133 | {
|
---|
1134 | std::stack<BspNode *> tStack;
|
---|
1135 |
|
---|
1136 | tStack.push(tree.GetRoot());
|
---|
1137 |
|
---|
1138 | PolygonContainer polys;
|
---|
1139 |
|
---|
1140 | while (!tStack.empty())
|
---|
1141 | {
|
---|
1142 | // filter polygons donw the tree
|
---|
1143 | BspNode *node = tStack.top();
|
---|
1144 | tStack.pop();
|
---|
1145 |
|
---|
1146 | if (!node->IsLeaf())
|
---|
1147 | {
|
---|
1148 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
|
---|
1149 |
|
---|
1150 | // bounded plane is added to the polygons
|
---|
1151 | polys.push_back(tree.GetBoundingBox().CrossSection(interior->GetPlane()));
|
---|
1152 |
|
---|
1153 | // push the children on the stack
|
---|
1154 | tStack.push(interior->GetBack());
|
---|
1155 | tStack.push(interior->GetFront());
|
---|
1156 | }
|
---|
1157 | }
|
---|
1158 |
|
---|
1159 | ExportPolygons(polys);
|
---|
1160 | CLEAR_CONTAINER(polys);
|
---|
1161 | }
|
---|
1162 |
|
---|
1163 |
|
---|
1164 | void VrmlExporter::ExportGeometry(const ObjectContainer &objects)
|
---|
1165 | {
|
---|
1166 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
1167 |
|
---|
1168 | if (1)
|
---|
1169 | {
|
---|
1170 | // export using native or random material
|
---|
1171 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
1172 | {
|
---|
1173 | if (0)
|
---|
1174 | {
|
---|
1175 | mUseForcedMaterial = true;
|
---|
1176 | SetForcedMaterial(RandomMaterial());
|
---|
1177 | }
|
---|
1178 | ExportIntersectable(*oit);
|
---|
1179 | }
|
---|
1180 | return;
|
---|
1181 | }
|
---|
1182 |
|
---|
1183 | // hack: all object exported as one mesh
|
---|
1184 | PolygonContainer polys;
|
---|
1185 |
|
---|
1186 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
1187 | {
|
---|
1188 | polys.push_back(new Polygon3(dynamic_cast<MeshInstance *>(*oit)->GetMesh()->mVertices));
|
---|
1189 | }
|
---|
1190 |
|
---|
1191 | Mesh dummyMesh;
|
---|
1192 | PolygonContainer::const_iterator pit, pit_end = polys.end();
|
---|
1193 |
|
---|
1194 | for (pit = polys.begin(); pit != pit_end; ++ pit)
|
---|
1195 | {
|
---|
1196 | Polygon3 *poly = (*pit);
|
---|
1197 | IncludePolyInMesh(*poly, dummyMesh);
|
---|
1198 | }
|
---|
1199 |
|
---|
1200 | ExportMesh(&dummyMesh);
|
---|
1201 |
|
---|
1202 | CLEAR_CONTAINER(polys);
|
---|
1203 | }
|
---|
1204 |
|
---|
1205 |
|
---|
1206 |
|
---|
1207 | bool VrmlExporter::ExportRssTree2(const RssTree &tree,
|
---|
1208 | const Vector3 direction)
|
---|
1209 | {
|
---|
1210 | stack<RssTreeNode *> tStack;
|
---|
1211 |
|
---|
1212 |
|
---|
1213 | mUseForcedMaterial = true;
|
---|
1214 |
|
---|
1215 | Vector3 dirParam;
|
---|
1216 |
|
---|
1217 | dirParam.x = VssRay::GetDirParam(0, Normalize(direction));
|
---|
1218 | dirParam.y = VssRay::GetDirParam(1, Normalize(direction));
|
---|
1219 |
|
---|
1220 | float maxImportance = 0.0f;
|
---|
1221 | tStack.push(tree.GetRoot());
|
---|
1222 | while (!tStack.empty()) {
|
---|
1223 |
|
---|
1224 | RssTreeNode *node = tStack.top();
|
---|
1225 | tStack.pop();
|
---|
1226 |
|
---|
1227 | if (!node->IsLeaf()) {
|
---|
1228 | RssTreeInterior *interior = (RssTreeInterior *)node;
|
---|
1229 | if (interior->axis < 3) {
|
---|
1230 | tStack.push(interior->front);
|
---|
1231 | tStack.push(interior->back);
|
---|
1232 | } else {
|
---|
1233 | if (dirParam[interior->axis-3] < interior->position)
|
---|
1234 | tStack.push(interior->back);
|
---|
1235 | else
|
---|
1236 | tStack.push(interior->front);
|
---|
1237 | }
|
---|
1238 | } else {
|
---|
1239 | RssTreeLeaf *leaf = (RssTreeLeaf *)node;
|
---|
1240 | if (tree.ValidLeaf(leaf)) {
|
---|
1241 | float i = leaf->GetImportance();
|
---|
1242 | if (i > maxImportance)
|
---|
1243 | maxImportance = i;
|
---|
1244 | }
|
---|
1245 | }
|
---|
1246 | }
|
---|
1247 |
|
---|
1248 | tStack.push(tree.GetRoot());
|
---|
1249 | while (!tStack.empty()) {
|
---|
1250 |
|
---|
1251 | RssTreeNode *node = tStack.top();
|
---|
1252 | tStack.pop();
|
---|
1253 |
|
---|
1254 |
|
---|
1255 | if (!node->IsLeaf()) {
|
---|
1256 | RssTreeInterior *interior = (RssTreeInterior *)node;
|
---|
1257 | if (interior->axis < 3) {
|
---|
1258 | tStack.push(interior->front);
|
---|
1259 | tStack.push(interior->back);
|
---|
1260 | } else {
|
---|
1261 | if (dirParam[interior->axis-3] < interior->position)
|
---|
1262 | tStack.push(interior->back);
|
---|
1263 | else
|
---|
1264 | tStack.push(interior->front);
|
---|
1265 | }
|
---|
1266 | } else {
|
---|
1267 | RssTreeLeaf *leaf = (RssTreeLeaf *)node;
|
---|
1268 | if (tree.ValidLeaf(leaf)) {
|
---|
1269 | AxisAlignedBox3 box;
|
---|
1270 | box = tree.GetShrankedBBox(leaf);
|
---|
1271 | Mesh *mesh = new Mesh;
|
---|
1272 | IncludeBoxInMesh(box, *mesh);
|
---|
1273 |
|
---|
1274 | // get 4 corners of the ray directions
|
---|
1275 |
|
---|
1276 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
1277 | mForcedMaterial.mDiffuseColor.r = leaf->GetImportance()/maxImportance;
|
---|
1278 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
1279 |
|
---|
1280 | ExportMesh(mesh);
|
---|
1281 | delete mesh;
|
---|
1282 | }
|
---|
1283 | }
|
---|
1284 | }
|
---|
1285 |
|
---|
1286 | mUseForcedMaterial = false;
|
---|
1287 |
|
---|
1288 | return true;
|
---|
1289 | }
|
---|
1290 |
|
---|
1291 |
|
---|
1292 | void
|
---|
1293 | VrmlExporter::ExportViewpoint(const Vector3 &point,
|
---|
1294 | const Vector3 &direction)
|
---|
1295 | {
|
---|
1296 | stream << "Viewpoint {" << endl;
|
---|
1297 |
|
---|
1298 | stream << "position " << point.x << " " << point.y << " " << point.z << endl;
|
---|
1299 | // stream<<"orientation "<<direction.x<<direction.y<<direction.z<<endl;
|
---|
1300 |
|
---|
1301 | stream << "}" << endl; // end view point;
|
---|
1302 |
|
---|
1303 | }
|
---|
1304 |
|
---|
1305 |
|
---|
1306 | void VrmlExporter::ExportBeam(const Beam &beam, const AxisAlignedBox3 &box)
|
---|
1307 | {
|
---|
1308 | if (beam.mMesh)
|
---|
1309 | {
|
---|
1310 | ExportMesh(beam.mMesh);
|
---|
1311 | return;
|
---|
1312 | }
|
---|
1313 |
|
---|
1314 | PolygonContainer polys;
|
---|
1315 | //ExportBox(beam.mBox);
|
---|
1316 |
|
---|
1317 | const float zfar = 2.0f * Magnitude(box.Diagonal());
|
---|
1318 |
|
---|
1319 | // box should not never remove part of beam polygons
|
---|
1320 | Vector3 bmin = beam.mBox.Min() - Vector3(zfar * 2.0f);
|
---|
1321 | Vector3 bmax = beam.mBox.Max() + Vector3(zfar * 2.0f);
|
---|
1322 |
|
---|
1323 | AxisAlignedBox3 bbox(bmin, bmax);
|
---|
1324 | Plane3 fplane;
|
---|
1325 | fplane.mNormal = -beam.mPlanes[0].mNormal;
|
---|
1326 |
|
---|
1327 | fplane.mD = beam.mPlanes[0].mD - zfar - 1.0f;
|
---|
1328 |
|
---|
1329 | vector<Plane3> planes = beam.mPlanes;
|
---|
1330 | planes.push_back(fplane);
|
---|
1331 |
|
---|
1332 | for (int i = 0; i < planes.size(); ++ i)
|
---|
1333 | {
|
---|
1334 | Polygon3 *poly = bbox.CrossSection(planes[i]);
|
---|
1335 | if (!poly->Valid(Limits::Small))
|
---|
1336 | DEL_PTR(poly);
|
---|
1337 |
|
---|
1338 | for (int j = 0; (j < planes.size()) && poly; ++ j)
|
---|
1339 | {
|
---|
1340 | if (j != i)
|
---|
1341 | {
|
---|
1342 | Polygon3 *front = new Polygon3();
|
---|
1343 | Polygon3 *back = new Polygon3();
|
---|
1344 |
|
---|
1345 | poly->Split(planes[j], *front, *back, Limits::Small);
|
---|
1346 | DEL_PTR(poly);
|
---|
1347 | DEL_PTR(front);
|
---|
1348 |
|
---|
1349 | if (!back->Valid(Limits::Small))
|
---|
1350 | DEL_PTR(back);
|
---|
1351 | poly = back;
|
---|
1352 | }
|
---|
1353 | }
|
---|
1354 | if (poly)
|
---|
1355 | polys.push_back(poly);
|
---|
1356 | }
|
---|
1357 |
|
---|
1358 | ExportPolygons(polys);
|
---|
1359 | CLEAR_CONTAINER(polys);
|
---|
1360 | }
|
---|
1361 |
|
---|
1362 | } |
---|