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 | #include "VspOspTree.h"
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12 | #include "VssTree.h"
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13 | #include "VspBspTree.h"
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14 | #include "RssTree.h"
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15 | #include "Beam.h"
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16 |
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17 | namespace GtpVisibilityPreprocessor {
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18 |
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19 |
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20 | X3dExporter::X3dExporter(const string filename):Exporter(filename)
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21 | {
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22 | stream.open(mFilename.c_str());
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23 | stream<<"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
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24 | stream<<"<X3D>"<<endl;
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25 | stream<<"<Scene>"<<endl;
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26 |
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27 | }
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28 |
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29 | X3dExporter::~X3dExporter()
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30 | {
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31 | stream<<"</Scene>"<<endl;
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32 | stream<<"</X3D>"<<endl;
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33 | stream.close();
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34 | }
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35 |
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36 |
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37 |
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38 | bool
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39 | X3dExporter::ExportRays(const RayContainer &rays,
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40 | const float length,
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41 | const RgbColor &color)
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42 | {
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43 | RayContainer::const_iterator ri = rays.begin();
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44 |
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45 | stream<<"<Shape>"<<endl;
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46 | stream<<"<Appearance>"<<endl;
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47 | stream<<"<Material diffuseColor=\""<<color.r<<" "<<color.g<<" "<<color.b<<
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48 | "\" />"<<endl;
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49 | stream<<"</Appearance>"<<endl;
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50 |
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51 | stream<<"<IndexedLineSet coordIndex=\""<<endl;
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52 |
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53 | int index = 0;
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54 | for (; ri != rays.end(); ri++) {
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55 | stream<<index<<" "<<index+1<<" -1\n";
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56 | index+=2;
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57 | }
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58 |
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59 | stream<<"\" >"<<endl;
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60 |
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61 | stream<<"<Coordinate point=\""<<endl;
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62 |
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63 | ri = rays.begin();
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64 | for (; ri != rays.end(); ri++) {
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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 | if (length < 0)
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69 | b = (*ri)->GetLoc() - length*(*ri)->GetDir();
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70 | else
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71 | if ((*ri)->intersections.size()==0)
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72 | b = (*ri)->GetLoc() + length*(*ri)->GetDir();
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73 | else
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74 | b = (*ri)->Extrap((*ri)->intersections[0].mT);
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75 |
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76 | stream<<a.x<<" "<<a.y<<" "<<a.z<<" ,";
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77 | stream<<b.x<<" "<<b.y<<" "<<b.z<<" ,\n";
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78 | }
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79 |
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80 | stream<<"\" >"<<endl;
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81 | stream<<"</Coordinate>"<<endl;
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82 | stream<<"</IndexedLineSet>"<<endl;
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83 | stream<<"</Shape>"<<endl;
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84 |
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85 | return true;
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86 | }
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87 |
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88 |
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89 | bool
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90 | X3dExporter::ExportRaySets(const vector<VssRayContainer> &rays,
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91 | const RgbColor &color)
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92 | {
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93 | vector<VssRayContainer>::const_iterator ri = rays.begin();
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94 |
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95 | stream<<"<Switch DEF=\"RAYS\" whichChoice=\"0\" >"<<endl;
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96 |
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97 | bool result = false;
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98 |
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99 | for (; ri != rays.end(); ri++) {
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100 | result = ExportRays(*ri, color);
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101 | if (!result) {
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102 | cerr<<"Error while exporting rays!\n";
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103 | break;
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104 | }
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105 | }
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106 |
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107 | stream<<"</Switch>"<<endl;
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108 |
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109 | stream<<"<TimeSensor DEF='TIMER' loop='true' startTime='0' stopTime='0' cycleInterval='5'>"
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110 | <<endl;
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111 | stream<<"</TimeSensor>"<<endl;
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112 |
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113 | stream<<"<IntegerSequencer DEF='SEQ'"<<endl;
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114 | stream<<"key='0.0 ";
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115 | int i;
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116 | int size = rays.size() + 2;
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117 | for (i=1; i < size; i++) {
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118 | stream<<i/(float)(size-1)<<" ";
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119 | }
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120 | stream<<"'\n";
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121 |
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122 | stream<<"keyValue='";
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123 | for (i=0; i < size; i++) {
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124 | stream<<i<<" ";
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125 | }
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126 | stream<<"'>\n";
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127 |
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128 | stream<<"</IntegerSequencer>"<<endl;
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129 |
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130 | stream<<
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131 | "<ROUTE fromNode='TIMER' fromField='fraction_changed' toNode='SEQ' toField='set_fraction'>";
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132 | stream<<"</ROUTE>"<<endl;
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133 |
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134 | stream<<"<ROUTE fromNode='SEQ' fromField='value_changed' toNode='RAYS' toField='set_whichChoice'>";
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135 |
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136 | stream<<"</ROUTE>"<<endl;
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137 |
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138 | return result;
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139 | }
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140 |
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141 | bool
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142 | X3dExporter::ExportRays(const VssRayContainer &rays,
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143 | const RgbColor &color)
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144 | {
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145 | VssRayContainer::const_iterator ri = rays.begin();
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146 |
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147 | stream<<"<Shape>"<<endl;
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148 | stream<<"<Appearance>"<<endl;
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149 | stream<<"<Material diffuseColor=\""<<color.r<<" "<<color.g<<" "<<color.b<<
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150 | "\" />"<<endl;
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151 | stream<<"</Appearance>"<<endl;
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152 |
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153 | stream<<"<IndexedLineSet coordIndex=\""<<endl;
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154 |
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155 | int index = 0;
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156 | for (; ri != rays.end(); ri++) {
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157 | stream<<index<<" "<<index+1<<" -1\n";
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158 | index+=2;
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159 | }
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160 |
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161 | stream<<"\" >"<<endl;
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162 |
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163 | stream<<"<Coordinate point=\""<<endl;
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164 |
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165 | ri = rays.begin();
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166 | for (; ri != rays.end(); ri++) {
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167 | const Vector3 a = (*ri)->GetOrigin();
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168 | //const Vector3 b = (*ri)->mTerminationObject ? (*ri)->GetTermination() : a + 1000 * Normalize((*ri)->GetDir());
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169 | const Vector3 b = (*ri)->GetTermination(); // matt: change again!!
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170 |
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171 | stream<<a.x<<" "<<a.y<<" "<<a.z<<" ,";
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172 | stream<<b.x<<" "<<b.y<<" "<<b.z<<" ,\n";
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173 | }
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174 |
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175 | stream<<"\" >"<<endl;
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176 | stream<<"</Coordinate>"<<endl;
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177 | stream<<"</IndexedLineSet>"<<endl;
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178 | stream<<"</Shape>"<<endl;
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179 |
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180 | return true;
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181 | }
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182 |
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183 | void
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184 | X3dExporter::ExportSceneNode(SceneGraphNode *node)
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185 | {
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186 | stream<<"<Group>"<<endl;
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187 |
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188 | SceneGraphNodeContainer::iterator ni = node->mChildren.begin();
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189 | for (; ni != node->mChildren.end(); ni++)
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190 | ExportSceneNode(*ni);
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191 |
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192 |
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193 | ObjectContainer::const_iterator mi = node->mGeometry.begin();
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194 | for (; mi != node->mGeometry.end(); mi++) {
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195 | // export the transform...
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196 | ExportIntersectable(*mi);
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197 | }
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198 |
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199 | stream<<"</Group>"<<endl;
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200 |
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201 | }
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202 | void
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203 | X3dExporter::ExportIntersectable(Intersectable *object)
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204 | {
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205 | switch (object->Type())
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206 | {
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207 | case Intersectable::MESH_INSTANCE:
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208 | ExportMeshInstance((MeshInstance *)object);
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209 | break;
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210 | case Intersectable::TRANSFORMED_MESH_INSTANCE:
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211 | ExportTransformedMeshInstance(dynamic_cast<TransformedMeshInstance *>(object));
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212 | break;
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213 | case Intersectable::VIEW_CELL:
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214 | ExportViewCell((ViewCell *)object);
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215 | break;
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216 | default:
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217 | cerr << "Sorry the export for object not yet defined" << endl;
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218 | break;
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219 | }
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220 | }
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221 |
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222 |
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223 | void
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224 | X3dExporter::ExportMeshInstance(MeshInstance *object)
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225 | {
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226 | // $$JB$$
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227 | // in the future check whether the mesh was not already exported
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228 | // and use a reference to the that mesh instead
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229 | ExportMesh(object->GetMesh());
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230 | }
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231 |
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232 |
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233 | void
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234 | X3dExporter::ExportTransformedMeshInstance(TransformedMeshInstance *mi)
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235 | {
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236 | Mesh mesh(*mi->GetMesh());
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237 |
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238 | Matrix4x4 m;
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239 | mi->GetWorldTransform(m);
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240 | mesh.ApplyTransformation(m);
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241 |
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242 | ExportMesh(&mesh);
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243 | }
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244 |
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245 |
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246 | void
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247 | X3dExporter::ExportViewCells(const ViewCellContainer &viewCells)
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248 | {
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249 | ViewCellContainer::const_iterator it, it_end = viewCells.end();
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250 |
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251 | for (it = viewCells.begin(); it != it_end; ++ it)
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252 | ExportViewCell(*it);
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253 | }
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254 |
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255 |
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256 | void
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257 | X3dExporter::ExportBspLeaves(const BspTree &tree, const int maxPvs)
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258 | {
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259 | stack<pair<BspNode *, BspNodeGeometry *> > tStack;
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260 | ViewCell::NewMail();
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261 |
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262 | BspNodeGeometry *geom = new BspNodeGeometry();
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263 | tree.ConstructGeometry(tree.GetRoot(), *geom);
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264 |
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265 | tStack.push(pair<BspNode *, BspNodeGeometry *>(tree.GetRoot(), geom));
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266 |
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267 | if (maxPvs)
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268 | mUseForcedMaterial = true;
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269 |
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270 | while (!tStack.empty())
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271 | {
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272 | BspNode *node = tStack.top().first;
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273 | BspNodeGeometry *cell = tStack.top().second;
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274 | tStack.pop();
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275 |
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276 | if (!node->IsLeaf())
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277 | {
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278 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
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279 |
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280 | BspNodeGeometry *front = new BspNodeGeometry();
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281 | BspNodeGeometry *back = new BspNodeGeometry();
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282 |
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283 | cell->SplitGeometry(*front,
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284 | *back,
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285 | interior->GetPlane(),
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286 | tree.GetBoundingBox(),
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287 | tree.GetEpsilon());
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288 |
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289 | tStack.push(pair<BspNode *, BspNodeGeometry *>(interior->GetFront(), front));
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290 | tStack.push(pair<BspNode *, BspNodeGeometry *>(interior->GetBack(), back));
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291 | }
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292 | else
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293 | {
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294 | if (maxPvs)
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295 | {
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296 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(node);
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297 |
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298 | mForcedMaterial.mDiffuseColor.b = 1.0f;
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299 | const float importance =
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300 | (float)leaf->GetViewCell()->GetPvs().CountPvs() / (float)maxPvs;
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301 |
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302 | mForcedMaterial.mDiffuseColor.r = importance;
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303 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
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304 | }
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305 |
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306 | ExportPolygons(cell->GetPolys());
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307 | }
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308 |
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309 | DEL_PTR(cell);
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310 | }
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311 | }
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312 |
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313 | void
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314 | X3dExporter::ExportViewCell(ViewCell *viewCell)
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315 | {
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316 | if (viewCell->GetMesh())
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317 | ExportMesh(viewCell->GetMesh());
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318 | }
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319 |
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320 | void
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321 | X3dExporter::ExportMesh(Mesh *mesh)
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322 | {
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323 |
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324 | stream<<"<Shape>"<<endl;
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325 | stream<<"<Appearance>"<<endl;
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326 |
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327 | // $$ tmp -> random material
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328 |
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329 | float r, g, b;
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330 |
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331 | if (mUseForcedMaterial) {
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332 | r = mForcedMaterial.mDiffuseColor.r;
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333 | g = mForcedMaterial.mDiffuseColor.g;
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334 | b = mForcedMaterial.mDiffuseColor.b;
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335 |
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336 | } else
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337 | if (mesh->mMaterial) {
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338 | r = mesh->mMaterial->mDiffuseColor.r;
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339 | g = mesh->mMaterial->mDiffuseColor.g;
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340 | b = mesh->mMaterial->mDiffuseColor.b;
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341 | } else {
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342 | r = RandomValue(0.5, 1.0);
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343 | g = RandomValue(0.5, 1.0);
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344 | b = RandomValue(0.5, 1.0);
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345 | }
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346 |
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347 | stream<<"<Material diffuseColor=\""<<r<<" "<<g<<" "<<b<<
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348 | "\" specularColor=\"0.0 0.0 0.0\"/>"<<endl;
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349 | stream<<"</Appearance>"<<endl;
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350 |
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351 |
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352 | if (mWireframe)
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353 | stream<<"<IndexedLineSet coordIndex=\""<<endl;
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354 | else
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355 | //stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
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356 | stream << "<IndexedFaceSet coordIndex=\"" << endl;
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357 |
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358 | FaceContainer::const_iterator fi = mesh->mFaces.begin();
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359 |
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360 | int index = 0;
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361 |
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362 | for (; fi != mesh->mFaces.end(); fi++) {
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363 | Face *face = *fi;
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364 | VertexIndexContainer::const_iterator vi = face->mVertexIndices.begin();
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365 | for (; vi != face->mVertexIndices.end(); vi++)
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366 | stream<<*vi<<" ";
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367 | if (mWireframe) // final line to finish polygon
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368 | stream << (*face->mVertexIndices.begin()) << " ";
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369 |
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370 | stream<<"-1"<<endl;
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371 | }
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372 | stream<<"\" >"<<endl;
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373 |
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374 | stream<<"<Coordinate point=\""<<endl;
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375 |
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376 | VertexContainer::const_iterator vi = mesh->mVertices.begin();
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377 | for (; vi != mesh->mVertices.end(); vi++) {
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378 | stream<<(*vi).x<<" "<<(*vi).y<<" "<<(*vi).z;
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379 | stream<<","<<endl;
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380 | }
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381 |
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382 | stream<<"\" >"<<endl;
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383 | stream<<"</Coordinate>"<<endl;
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384 |
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385 | if (mWireframe)
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386 | stream<<"</IndexedLineSet>"<<endl;
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387 | else
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388 | stream<<"</IndexedFaceSet>"<<endl;
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389 |
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390 | stream<<"</Shape>"<<endl;
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391 |
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392 | }
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393 |
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394 |
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395 | void X3dExporter::ExportPolygon(Polygon3 *poly)
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396 | {
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397 | stream << "<Shape>" << endl;
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398 | stream << "<Appearance>" << endl;
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399 |
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400 | // $$ tmp -> random material
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401 |
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402 | float r, g, b;
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403 |
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404 | if (mUseForcedMaterial)
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405 | {
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406 | r = mForcedMaterial.mDiffuseColor.r;
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407 | g = mForcedMaterial.mDiffuseColor.g;
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408 | b = mForcedMaterial.mDiffuseColor.b;
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409 | }
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410 | else if (poly->mMaterial)
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411 | {
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412 | r = poly->mMaterial->mDiffuseColor.r;
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413 | g = poly->mMaterial->mDiffuseColor.g;
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414 | b = poly->mMaterial->mDiffuseColor.b;
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415 | } else
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416 | {
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417 | r = RandomValue(0.5, 1.0);
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418 | g = RandomValue(0.5, 1.0);
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419 | b = RandomValue(0.5, 1.0);
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420 | }
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421 |
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422 | stream << "<Material diffuseColor=\"" << r << " " << g << " " << b
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423 | << "\" specularColor=\"0.0 0.0 0.0\"/>" << endl;
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424 |
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425 | stream << "</Appearance>" << endl;
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426 |
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427 |
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428 | //-- create and write indices
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429 | if (mWireframe)
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430 | stream<<"<IndexedLineSet coordIndex=\""<<endl;
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431 | else
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432 | //stream << "<IndexedFaceSet ccw=\"TRUE\" coordIndex=\"" << endl;
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433 | stream << "<IndexedFaceSet coordIndex=\"" << endl;
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434 | int index = 0;
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435 |
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436 | VertexContainer::const_iterator vi;
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437 |
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438 | for (index = 0; index < (int)poly->mVertices.size(); ++ index)
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439 | stream << index << " ";
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440 |
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441 | if (mWireframe) // final line to finish polygon
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442 | stream << "0 ";
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443 |
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444 | stream << "-1" << endl;
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445 | stream << "\" >" << endl;
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446 |
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447 | stream << "<Coordinate point=\"" << endl;
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448 |
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449 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
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450 | {
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451 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
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452 | stream << "," << endl;
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453 | }
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454 |
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455 | stream << "\" >" << endl;
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456 | stream << "</Coordinate>" << endl;
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457 |
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458 | if (mWireframe)
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459 | stream << "</IndexedLineSet>" << endl;
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460 | else
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461 | stream << "</IndexedFaceSet>" << endl;
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462 |
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463 | stream << "</Shape>" << endl;
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464 | }
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465 |
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466 |
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467 |
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468 | void X3dExporter::ExportPolygons(const PolygonContainer &polys)
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469 | {
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470 | stream << "<Shape>" << endl;
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471 | stream << "<Appearance>" << endl;
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472 |
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473 | // $$ tmp -> random material
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474 |
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475 | float r, g, b;
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476 |
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477 | if (mUseForcedMaterial)
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478 | {
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479 | r = mForcedMaterial.mDiffuseColor.r;
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480 | g = mForcedMaterial.mDiffuseColor.g;
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---|
481 | b = mForcedMaterial.mDiffuseColor.b;
|
---|
482 | }
|
---|
483 | else
|
---|
484 | {
|
---|
485 | r = RandomValue(0.5, 1.0);
|
---|
486 | g = RandomValue(0.5, 1.0);
|
---|
487 | b = RandomValue(0.5, 1.0);
|
---|
488 | }
|
---|
489 |
|
---|
490 | stream << "<Material diffuseColor=\"" << r << " " << g << " " << b
|
---|
491 | << "\" specularColor=\"0.0 0.0 0.0\"/>" << endl;
|
---|
492 |
|
---|
493 | stream << "</Appearance>" << endl;
|
---|
494 |
|
---|
495 |
|
---|
496 | //-- create and write indices
|
---|
497 | if (mWireframe)
|
---|
498 | stream<<"<IndexedLineSet coordIndex=\""<<endl;
|
---|
499 | else
|
---|
500 | //stream << "<IndexedFaceSet ccw=\"TRUE\" coordIndex=\"" << endl;
|
---|
501 | stream << "<IndexedFaceSet coordIndex=\"" << endl;
|
---|
502 |
|
---|
503 | int index = 0;
|
---|
504 |
|
---|
505 | PolygonContainer::const_iterator pit;
|
---|
506 |
|
---|
507 | VertexContainer::const_iterator vi;
|
---|
508 |
|
---|
509 | for (pit = polys.begin(); pit != polys.end(); ++pit)
|
---|
510 | {
|
---|
511 | Polygon3 *poly = *pit;
|
---|
512 | int startIdx = index;
|
---|
513 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
|
---|
514 | {
|
---|
515 | stream << index ++ << " ";
|
---|
516 | }
|
---|
517 |
|
---|
518 | stream << startIdx << " ";// finish line
|
---|
519 | stream << "-1" << endl;
|
---|
520 | }
|
---|
521 |
|
---|
522 | stream << "\" >" << endl;
|
---|
523 |
|
---|
524 | stream << "<Coordinate point=\"" << endl;
|
---|
525 | for (pit = polys.begin(); pit != polys.end(); ++ pit)
|
---|
526 | {
|
---|
527 | Polygon3 *poly = *pit;
|
---|
528 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
|
---|
529 | {
|
---|
530 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
|
---|
531 | stream << "," << endl;
|
---|
532 | }
|
---|
533 | }
|
---|
534 | stream << "\" >" << endl;
|
---|
535 | stream << "</Coordinate>" << endl;
|
---|
536 |
|
---|
537 | if (mWireframe)
|
---|
538 | stream << "</IndexedLineSet>" << endl;
|
---|
539 | else
|
---|
540 | stream << "</IndexedFaceSet>" << endl;
|
---|
541 |
|
---|
542 | stream << "</Shape>" << endl;
|
---|
543 | }
|
---|
544 |
|
---|
545 |
|
---|
546 | bool
|
---|
547 | X3dExporter::ExportBox(const AxisAlignedBox3 &box)
|
---|
548 | {
|
---|
549 | Mesh *mesh = new Mesh;
|
---|
550 | // add 8 vertices of the box
|
---|
551 | int index = (int)mesh->mVertices.size();
|
---|
552 | for (int i=0; i < 8; i++) {
|
---|
553 | Vector3 v;
|
---|
554 | box.GetVertex(i, v);
|
---|
555 | mesh->mVertices.push_back(v);
|
---|
556 | }
|
---|
557 |
|
---|
558 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
559 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
560 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
561 |
|
---|
562 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
563 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
564 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
565 |
|
---|
566 | ExportMesh(mesh);
|
---|
567 | delete mesh;
|
---|
568 | return true;
|
---|
569 | }
|
---|
570 |
|
---|
571 |
|
---|
572 | bool
|
---|
573 | X3dExporter::ExportBspTree(const BspTree &tree)
|
---|
574 | {
|
---|
575 | if (mExportRayDensity)
|
---|
576 | {
|
---|
577 | return ExportBspTreeRayDensity(tree);
|
---|
578 | }
|
---|
579 |
|
---|
580 | bool savedWireframe = mWireframe;
|
---|
581 |
|
---|
582 | SetWireframe();
|
---|
583 |
|
---|
584 | ExportBox(tree.GetBoundingBox());
|
---|
585 |
|
---|
586 | if (!savedWireframe)
|
---|
587 | SetFilled();
|
---|
588 |
|
---|
589 | // export view cells
|
---|
590 | ExportBspLeaves(tree);
|
---|
591 |
|
---|
592 | return true;
|
---|
593 | }
|
---|
594 |
|
---|
595 |
|
---|
596 | bool X3dExporter::ExportKdTree(const KdTree &tree)
|
---|
597 | {
|
---|
598 | if (mExportRayDensity) {
|
---|
599 | return ExportKdTreeRayDensity(tree);
|
---|
600 | }
|
---|
601 |
|
---|
602 | stack<KdNode *> tStack;
|
---|
603 |
|
---|
604 | tStack.push(tree.GetRoot());
|
---|
605 |
|
---|
606 | Mesh *mesh = new Mesh;
|
---|
607 |
|
---|
608 | while (!tStack.empty()) {
|
---|
609 | KdNode *node = tStack.top();
|
---|
610 | tStack.pop();
|
---|
611 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
612 | // add 6 vertices of the box
|
---|
613 | int index = (int)mesh->mVertices.size();
|
---|
614 | for (int i=0; i < 8; i++) {
|
---|
615 | Vector3 v;
|
---|
616 | box.GetVertex(i, v);
|
---|
617 | mesh->mVertices.push_back(v);
|
---|
618 | }
|
---|
619 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
620 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
621 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
622 |
|
---|
623 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
624 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
625 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
626 |
|
---|
627 | if (!node->IsLeaf()) {
|
---|
628 | KdInterior *interior = (KdInterior *)node;
|
---|
629 | tStack.push(interior->mFront);
|
---|
630 | tStack.push(interior->mBack);
|
---|
631 | }
|
---|
632 | }
|
---|
633 |
|
---|
634 | ExportMesh(mesh);
|
---|
635 | delete mesh;
|
---|
636 |
|
---|
637 | return true;
|
---|
638 | }
|
---|
639 |
|
---|
640 |
|
---|
641 |
|
---|
642 |
|
---|
643 | bool
|
---|
644 | X3dExporter::ExportVssTree(const VssTree &tree
|
---|
645 | )
|
---|
646 | {
|
---|
647 | stack<VssTreeNode *> tStack;
|
---|
648 |
|
---|
649 | tStack.push(tree.GetRoot());
|
---|
650 |
|
---|
651 | Mesh *mesh = new Mesh;
|
---|
652 | VssRayContainer rays;
|
---|
653 |
|
---|
654 | while (!tStack.empty()) {
|
---|
655 |
|
---|
656 | VssTreeNode *node = tStack.top();
|
---|
657 | tStack.pop();
|
---|
658 |
|
---|
659 |
|
---|
660 | if (!node->IsLeaf()) {
|
---|
661 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
662 | tStack.push(interior->front);
|
---|
663 | tStack.push(interior->back);
|
---|
664 | } else {
|
---|
665 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
666 | AxisAlignedBox3 box;
|
---|
667 | box = tree.GetBBox(leaf);
|
---|
668 | IncludeBoxInMesh(box, *mesh);
|
---|
669 |
|
---|
670 | if (tree.ValidLeaf(leaf)) {
|
---|
671 |
|
---|
672 | Vector3 origin = box.Center();
|
---|
673 | box = tree.GetDirBBox(leaf);
|
---|
674 | VssRay *ray;
|
---|
675 |
|
---|
676 | const int indices[][2] = {{0,0}, {0,1}, {1,1}, {1,0}};
|
---|
677 | MeshInstance dummy(mesh);
|
---|
678 | for (int i=0; i < 4; i++) {
|
---|
679 | // Vector3 v = box.GetVertex(indices[i][0], indices[i][1], 0);
|
---|
680 | Vector3 v = box.Center();
|
---|
681 |
|
---|
682 | Vector3 direction = VssRay::GetDirection(v.x, v.y);
|
---|
683 | if (Magnitude(direction) > Limits::Small)
|
---|
684 | direction.Normalize();
|
---|
685 | else
|
---|
686 | direction = Vector3(0, 1, 0);
|
---|
687 | float k = 100.0f*leaf->GetImportance();
|
---|
688 | // get 4 corners of the ray directions
|
---|
689 |
|
---|
690 | ray = new VssRay(origin, origin + (direction*k), NULL, &dummy);
|
---|
691 | rays.push_back(ray);
|
---|
692 | }
|
---|
693 | }
|
---|
694 | }
|
---|
695 | }
|
---|
696 |
|
---|
697 | ExportMesh(mesh);
|
---|
698 | ExportRays(rays);
|
---|
699 | CLEAR_CONTAINER(rays);
|
---|
700 | delete mesh;
|
---|
701 | return true;
|
---|
702 | }
|
---|
703 |
|
---|
704 | bool
|
---|
705 | X3dExporter::ExportVssTree2(const VssTree &tree,
|
---|
706 | const Vector3 direction
|
---|
707 | )
|
---|
708 | {
|
---|
709 | stack<VssTreeNode *> tStack;
|
---|
710 |
|
---|
711 |
|
---|
712 | mUseForcedMaterial = true;
|
---|
713 |
|
---|
714 | Vector3 dirParam;
|
---|
715 |
|
---|
716 | dirParam.x = VssRay::GetDirParam(0, Normalize(direction));
|
---|
717 | dirParam.y = VssRay::GetDirParam(1, Normalize(direction));
|
---|
718 |
|
---|
719 | float maxImportance = 0.0f;
|
---|
720 | tStack.push(tree.GetRoot());
|
---|
721 | while (!tStack.empty()) {
|
---|
722 |
|
---|
723 | VssTreeNode *node = tStack.top();
|
---|
724 | tStack.pop();
|
---|
725 |
|
---|
726 | if (!node->IsLeaf()) {
|
---|
727 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
728 | if (interior->axis < 3) {
|
---|
729 | tStack.push(interior->front);
|
---|
730 | tStack.push(interior->back);
|
---|
731 | } else {
|
---|
732 | if (dirParam[interior->axis-3] < interior->position)
|
---|
733 | tStack.push(interior->back);
|
---|
734 | else
|
---|
735 | tStack.push(interior->front);
|
---|
736 | }
|
---|
737 | } else {
|
---|
738 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
739 | if (tree.ValidLeaf(leaf)) {
|
---|
740 | float i = leaf->GetImportance();
|
---|
741 | if (i > maxImportance)
|
---|
742 | maxImportance = i;
|
---|
743 | }
|
---|
744 | }
|
---|
745 | }
|
---|
746 |
|
---|
747 | tStack.push(tree.GetRoot());
|
---|
748 | while (!tStack.empty()) {
|
---|
749 |
|
---|
750 | VssTreeNode *node = tStack.top();
|
---|
751 | tStack.pop();
|
---|
752 |
|
---|
753 |
|
---|
754 | if (!node->IsLeaf()) {
|
---|
755 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
756 | if (interior->axis < 3) {
|
---|
757 | tStack.push(interior->front);
|
---|
758 | tStack.push(interior->back);
|
---|
759 | } else {
|
---|
760 | if (dirParam[interior->axis-3] < interior->position)
|
---|
761 | tStack.push(interior->back);
|
---|
762 | else
|
---|
763 | tStack.push(interior->front);
|
---|
764 | }
|
---|
765 | } else {
|
---|
766 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
767 | if (tree.ValidLeaf(leaf)) {
|
---|
768 | AxisAlignedBox3 box;
|
---|
769 | box = tree.GetBBox(leaf);
|
---|
770 | Mesh *mesh = new Mesh;
|
---|
771 | IncludeBoxInMesh(box, *mesh);
|
---|
772 |
|
---|
773 | // get 4 corners of the ray directions
|
---|
774 |
|
---|
775 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
776 | mForcedMaterial.mDiffuseColor.r = leaf->GetImportance()/maxImportance;
|
---|
777 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
778 |
|
---|
779 | ExportMesh(mesh);
|
---|
780 | delete mesh;
|
---|
781 | }
|
---|
782 | }
|
---|
783 | }
|
---|
784 |
|
---|
785 | mUseForcedMaterial = false;
|
---|
786 |
|
---|
787 | return true;
|
---|
788 | }
|
---|
789 |
|
---|
790 | bool
|
---|
791 | X3dExporter::ExportBspTreeRayDensity(const BspTree &tree)
|
---|
792 | {
|
---|
793 | stack<BspNode *> tStack;
|
---|
794 |
|
---|
795 | tStack.push(tree.GetRoot());
|
---|
796 |
|
---|
797 | bool fm = mUseForcedMaterial;
|
---|
798 |
|
---|
799 | mUseForcedMaterial = true;
|
---|
800 |
|
---|
801 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
802 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
803 |
|
---|
804 | while (!tStack.empty())
|
---|
805 | {
|
---|
806 | BspNode *node = tStack.top();
|
---|
807 | tStack.pop();
|
---|
808 |
|
---|
809 | if (node->IsLeaf())
|
---|
810 | {
|
---|
811 | ViewCell *vc = dynamic_cast<BspLeaf *>(node)->GetViewCell();
|
---|
812 | #if 0
|
---|
813 | // set the mesh material according to the ray density
|
---|
814 | if (vc->mPassingRays.mRays)
|
---|
815 | {
|
---|
816 | float importance =
|
---|
817 | vc->mPassingRays.mContributions / (float)vc->mPassingRays.mRays;
|
---|
818 |
|
---|
819 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
820 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
821 | ExportViewCell(vc);
|
---|
822 |
|
---|
823 | }
|
---|
824 | #endif
|
---|
825 | }
|
---|
826 | else
|
---|
827 | {
|
---|
828 | BspInterior *interior = (BspInterior *)node;
|
---|
829 | tStack.push(interior->GetFront());
|
---|
830 | tStack.push(interior->GetBack());
|
---|
831 | }
|
---|
832 | }
|
---|
833 |
|
---|
834 | // restore the state of forced material
|
---|
835 | mUseForcedMaterial = fm;
|
---|
836 |
|
---|
837 | return true;
|
---|
838 | }
|
---|
839 |
|
---|
840 | bool
|
---|
841 | X3dExporter::ExportKdTreeRayDensity(const KdTree &tree)
|
---|
842 | {
|
---|
843 | stack<KdNode *> tStack;
|
---|
844 |
|
---|
845 | tStack.push(tree.GetRoot());
|
---|
846 |
|
---|
847 | bool fm = mUseForcedMaterial;
|
---|
848 | mUseForcedMaterial = true;
|
---|
849 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
850 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
851 | while (!tStack.empty()) {
|
---|
852 | KdNode *node = tStack.top();
|
---|
853 | tStack.pop();
|
---|
854 | if (node->IsLeaf()) {
|
---|
855 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
856 | Mesh *mesh = new Mesh;
|
---|
857 |
|
---|
858 | // add 6 vertices of the box
|
---|
859 | int index = (int)mesh->mVertices.size();
|
---|
860 | for (int i=0; i < 8; i++) {
|
---|
861 | Vector3 v;
|
---|
862 | box.GetVertex(i, v);
|
---|
863 | mesh->mVertices.push_back(v);
|
---|
864 | }
|
---|
865 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
866 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
867 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
868 |
|
---|
869 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
870 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
871 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
872 |
|
---|
873 |
|
---|
874 | // set the mesh material according to the ray density
|
---|
875 | KdLeaf *leaf = (KdLeaf *) node;
|
---|
876 | if (leaf->mPassingRays.mRays) {
|
---|
877 | float importance = leaf->mPassingRays.mContributions/(float)leaf->mPassingRays.mRays;
|
---|
878 | // float importance = leaf->mPassingRays.mContributions/1000.0f;
|
---|
879 | // float importance = leaf->mPassingRays.mRays/1000.0f;
|
---|
880 | ///(float)leaf->mPassingRays.mRays;
|
---|
881 | // mForcedMaterial.mDiffuseColor.r = log10(leaf->mPassingRays.mRays)/3.0f;
|
---|
882 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
883 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
884 | ExportMesh(mesh);
|
---|
885 | }
|
---|
886 | delete mesh;
|
---|
887 | } else {
|
---|
888 | KdInterior *interior = (KdInterior *)node;
|
---|
889 | tStack.push(interior->mFront);
|
---|
890 | tStack.push(interior->mBack);
|
---|
891 | }
|
---|
892 | }
|
---|
893 | // restore the state of forced material
|
---|
894 | mUseForcedMaterial = fm;
|
---|
895 | return true;
|
---|
896 | }
|
---|
897 |
|
---|
898 |
|
---|
899 | struct BspSplitData
|
---|
900 | {
|
---|
901 | /// the current node
|
---|
902 | BspNode *mNode;
|
---|
903 |
|
---|
904 | vector<Plane3> mPlanes;
|
---|
905 | vector<bool> mSides;
|
---|
906 | bool mIsFront;
|
---|
907 | int mDepth;
|
---|
908 |
|
---|
909 | BspSplitData(BspNode *node):
|
---|
910 | mNode(node), mIsFront(false), mDepth(0)
|
---|
911 | {};
|
---|
912 |
|
---|
913 | BspSplitData(BspNode *node,
|
---|
914 | vector<Plane3> planes,
|
---|
915 | vector<bool> sides,
|
---|
916 | const bool isFront,
|
---|
917 | const int depth):
|
---|
918 | mNode(node), mPlanes(planes), mSides(sides),
|
---|
919 | mIsFront(isFront), mDepth(depth)
|
---|
920 | {};
|
---|
921 | };
|
---|
922 |
|
---|
923 | void X3dExporter::ExportLeavesGeometry(const BspTree &tree,
|
---|
924 | const vector<BspLeaf *> &leaves)
|
---|
925 | {
|
---|
926 | vector<BspLeaf *>::const_iterator it, it_end = leaves.end();
|
---|
927 |
|
---|
928 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
929 | {
|
---|
930 | BspNodeGeometry geom;
|
---|
931 | tree.ConstructGeometry(*it, geom);
|
---|
932 |
|
---|
933 | ExportPolygons(geom.GetPolys());
|
---|
934 | }
|
---|
935 | }
|
---|
936 |
|
---|
937 | void X3dExporter::ExportBspNodeSplits(BspNode *root,
|
---|
938 | const AxisAlignedBox3 &box,
|
---|
939 | const bool exportDepth,
|
---|
940 | const bool epsilon)
|
---|
941 | {
|
---|
942 | std::stack<BspSplitData> tStack;
|
---|
943 |
|
---|
944 | BspSplitData tData(root);
|
---|
945 | tStack.push(tData);
|
---|
946 |
|
---|
947 | PolygonContainer polys;
|
---|
948 | vector <int> depths;
|
---|
949 |
|
---|
950 | int maxDepth = 0;
|
---|
951 |
|
---|
952 | while (!tStack.empty())
|
---|
953 | {
|
---|
954 | // filter polygons donw the tree
|
---|
955 | BspSplitData tData = tStack.top();
|
---|
956 | tStack.pop();
|
---|
957 |
|
---|
958 | if (tData.mNode->IsLeaf())
|
---|
959 | {
|
---|
960 | if (tData.mDepth > maxDepth)
|
---|
961 | maxDepth = tData.mDepth;
|
---|
962 | }
|
---|
963 | else
|
---|
964 | {
|
---|
965 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
966 |
|
---|
967 | // add current side of split plane
|
---|
968 | if (tData.mNode != root)
|
---|
969 | tData.mSides.push_back(tData.mIsFront);
|
---|
970 |
|
---|
971 | // bounded plane is added to the polygons
|
---|
972 | Polygon3 *planePoly =
|
---|
973 | box.CrossSection(interior->GetPlane());
|
---|
974 |
|
---|
975 | // do all the splits with the previous planes
|
---|
976 | for (int i = 0; i < (int)tData.mPlanes.size(); ++ i)
|
---|
977 | {
|
---|
978 | if (planePoly->ClassifyPlane(tData.mPlanes[i], epsilon)
|
---|
979 | == Polygon3::SPLIT)
|
---|
980 | {
|
---|
981 | Polygon3 *frontPoly = new Polygon3();
|
---|
982 | Polygon3 *backPoly = new Polygon3();
|
---|
983 |
|
---|
984 | planePoly->Split(tData.mPlanes[i],
|
---|
985 | *frontPoly,
|
---|
986 | *backPoly,
|
---|
987 | epsilon);
|
---|
988 |
|
---|
989 | DEL_PTR(planePoly);
|
---|
990 |
|
---|
991 | if(tData.mSides[i] == true)
|
---|
992 | {
|
---|
993 | planePoly = frontPoly;
|
---|
994 | DEL_PTR(backPoly);
|
---|
995 | }
|
---|
996 | else
|
---|
997 | {
|
---|
998 | planePoly = backPoly;
|
---|
999 | DEL_PTR(frontPoly);
|
---|
1000 | }
|
---|
1001 | }
|
---|
1002 | }
|
---|
1003 |
|
---|
1004 | tData.mPlanes.push_back(interior->GetPlane()); // add plane to split planes
|
---|
1005 |
|
---|
1006 | if (planePoly->Valid(epsilon))
|
---|
1007 | {
|
---|
1008 | polys.push_back(planePoly);
|
---|
1009 | depths.push_back(tData.mDepth);
|
---|
1010 | }
|
---|
1011 | else
|
---|
1012 | DEL_PTR(planePoly);
|
---|
1013 |
|
---|
1014 | // push the children on the stack
|
---|
1015 | tStack.push(BspSplitData(interior->GetFront(), tData.mPlanes,
|
---|
1016 | tData.mSides, true, tData.mDepth + 1));
|
---|
1017 | tStack.push(BspSplitData(interior->GetBack(), tData.mPlanes,
|
---|
1018 | tData.mSides, false, tData.mDepth + 1));
|
---|
1019 | }
|
---|
1020 | }
|
---|
1021 |
|
---|
1022 | if (maxDepth > 0)
|
---|
1023 | {
|
---|
1024 | mUseForcedMaterial = true;
|
---|
1025 |
|
---|
1026 | for (int i = 0; i < (int)polys.size(); ++ i)
|
---|
1027 | {
|
---|
1028 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
1029 | float importance = (float)depths[i]/ (float)maxDepth;
|
---|
1030 |
|
---|
1031 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
1032 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
1033 |
|
---|
1034 | ExportPolygon(polys[i]);
|
---|
1035 | }
|
---|
1036 | }
|
---|
1037 | else
|
---|
1038 | {
|
---|
1039 | ExportPolygons(polys);
|
---|
1040 | }
|
---|
1041 |
|
---|
1042 | CLEAR_CONTAINER(polys);
|
---|
1043 | }
|
---|
1044 |
|
---|
1045 | void X3dExporter::ExportBspSplits(const BspTree &tree,
|
---|
1046 | const bool exportDepth)
|
---|
1047 | {
|
---|
1048 | ExportBspNodeSplits(tree.GetRoot(),
|
---|
1049 | tree.GetBoundingBox(),
|
---|
1050 | exportDepth,
|
---|
1051 | tree.GetEpsilon());
|
---|
1052 | }
|
---|
1053 |
|
---|
1054 | void X3dExporter::ExportBspSplits(const VspBspTree &tree,
|
---|
1055 | const bool exportDepth)
|
---|
1056 | {
|
---|
1057 | ExportBspNodeSplits(tree.GetRoot(),
|
---|
1058 | tree.GetBoundingBox(),
|
---|
1059 | exportDepth,
|
---|
1060 | tree.GetEpsilon());
|
---|
1061 | }
|
---|
1062 |
|
---|
1063 | void X3dExporter::ExportBspSplitPlanes(const BspTree &tree)
|
---|
1064 | {
|
---|
1065 | std::stack<BspNode *> tStack;
|
---|
1066 |
|
---|
1067 | tStack.push(tree.GetRoot());
|
---|
1068 |
|
---|
1069 | PolygonContainer polys;
|
---|
1070 |
|
---|
1071 | while (!tStack.empty())
|
---|
1072 | {
|
---|
1073 | // filter polygons donw the tree
|
---|
1074 | BspNode *node = tStack.top();
|
---|
1075 | tStack.pop();
|
---|
1076 |
|
---|
1077 | if (!node->IsLeaf())
|
---|
1078 | {
|
---|
1079 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
|
---|
1080 |
|
---|
1081 | // bounded plane is added to the polygons
|
---|
1082 | polys.push_back(tree.GetBoundingBox().CrossSection(interior->GetPlane()));
|
---|
1083 |
|
---|
1084 | // push the children on the stack
|
---|
1085 | tStack.push(interior->GetBack());
|
---|
1086 | tStack.push(interior->GetFront());
|
---|
1087 | }
|
---|
1088 | }
|
---|
1089 |
|
---|
1090 | ExportPolygons(polys);
|
---|
1091 | CLEAR_CONTAINER(polys);
|
---|
1092 | }
|
---|
1093 |
|
---|
1094 |
|
---|
1095 | void X3dExporter::ExportGeometry(const ObjectContainer &objects)
|
---|
1096 | {
|
---|
1097 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
1098 |
|
---|
1099 | if (1)
|
---|
1100 | {
|
---|
1101 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
1102 | {
|
---|
1103 | if (0)
|
---|
1104 | SetForcedMaterial(RandomMaterial());
|
---|
1105 |
|
---|
1106 | ExportIntersectable(*oit);
|
---|
1107 | }
|
---|
1108 |
|
---|
1109 | return;
|
---|
1110 | }
|
---|
1111 |
|
---|
1112 | // hack: all object exported as one mesh
|
---|
1113 | PolygonContainer polys;
|
---|
1114 |
|
---|
1115 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
1116 | {
|
---|
1117 | polys.push_back(new Polygon3(dynamic_cast<MeshInstance *>(*oit)->GetMesh()->mVertices));
|
---|
1118 | }
|
---|
1119 |
|
---|
1120 | Mesh dummyMesh;
|
---|
1121 | PolygonContainer::const_iterator pit, pit_end = polys.end();
|
---|
1122 |
|
---|
1123 | for (pit = polys.begin(); pit != pit_end; ++ pit)
|
---|
1124 | {
|
---|
1125 | Polygon3 *poly = (*pit);
|
---|
1126 | IncludePolyInMesh(*poly, dummyMesh);
|
---|
1127 | }
|
---|
1128 |
|
---|
1129 | ExportMesh(&dummyMesh);
|
---|
1130 |
|
---|
1131 | CLEAR_CONTAINER(polys);
|
---|
1132 | }
|
---|
1133 |
|
---|
1134 |
|
---|
1135 | bool
|
---|
1136 | X3dExporter::ExportRssTree2(const RssTree &tree,
|
---|
1137 | const Vector3 direction
|
---|
1138 | )
|
---|
1139 | {
|
---|
1140 | stack<RssTreeNode *> tStack;
|
---|
1141 |
|
---|
1142 |
|
---|
1143 | mUseForcedMaterial = true;
|
---|
1144 |
|
---|
1145 | Vector3 dirParam;
|
---|
1146 |
|
---|
1147 | dirParam.x = VssRay::GetDirParam(0, Normalize(direction));
|
---|
1148 | dirParam.y = VssRay::GetDirParam(1, Normalize(direction));
|
---|
1149 |
|
---|
1150 | float maxImportance = 0.0f;
|
---|
1151 | tStack.push(tree.GetRoot());
|
---|
1152 | while (!tStack.empty()) {
|
---|
1153 |
|
---|
1154 | RssTreeNode *node = tStack.top();
|
---|
1155 | tStack.pop();
|
---|
1156 |
|
---|
1157 | if (!node->IsLeaf()) {
|
---|
1158 | RssTreeInterior *interior = (RssTreeInterior *)node;
|
---|
1159 | if (interior->axis < 3) {
|
---|
1160 | tStack.push(interior->front);
|
---|
1161 | tStack.push(interior->back);
|
---|
1162 | } else {
|
---|
1163 | if (dirParam[interior->axis-3] < interior->position)
|
---|
1164 | tStack.push(interior->back);
|
---|
1165 | else
|
---|
1166 | tStack.push(interior->front);
|
---|
1167 | }
|
---|
1168 | } else {
|
---|
1169 | RssTreeLeaf *leaf = (RssTreeLeaf *)node;
|
---|
1170 | if (tree.ValidLeaf(leaf)) {
|
---|
1171 | float i = leaf->GetImportance();
|
---|
1172 | if (i > maxImportance)
|
---|
1173 | maxImportance = i;
|
---|
1174 | }
|
---|
1175 | }
|
---|
1176 | }
|
---|
1177 |
|
---|
1178 | tStack.push(tree.GetRoot());
|
---|
1179 | while (!tStack.empty()) {
|
---|
1180 |
|
---|
1181 | RssTreeNode *node = tStack.top();
|
---|
1182 | tStack.pop();
|
---|
1183 |
|
---|
1184 |
|
---|
1185 | if (!node->IsLeaf()) {
|
---|
1186 | RssTreeInterior *interior = (RssTreeInterior *)node;
|
---|
1187 | if (interior->axis < 3) {
|
---|
1188 | tStack.push(interior->front);
|
---|
1189 | tStack.push(interior->back);
|
---|
1190 | } else {
|
---|
1191 | if (dirParam[interior->axis-3] < interior->position)
|
---|
1192 | tStack.push(interior->back);
|
---|
1193 | else
|
---|
1194 | tStack.push(interior->front);
|
---|
1195 | }
|
---|
1196 | } else {
|
---|
1197 | RssTreeLeaf *leaf = (RssTreeLeaf *)node;
|
---|
1198 | if (tree.ValidLeaf(leaf)) {
|
---|
1199 | AxisAlignedBox3 box;
|
---|
1200 | box = tree.GetShrankedBBox(leaf);
|
---|
1201 | Mesh *mesh = new Mesh;
|
---|
1202 | IncludeBoxInMesh(box, *mesh);
|
---|
1203 |
|
---|
1204 | // get 4 corners of the ray directions
|
---|
1205 |
|
---|
1206 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
1207 | mForcedMaterial.mDiffuseColor.r = leaf->GetImportance()/maxImportance;
|
---|
1208 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
1209 |
|
---|
1210 | ExportMesh(mesh);
|
---|
1211 | delete mesh;
|
---|
1212 | }
|
---|
1213 | }
|
---|
1214 | }
|
---|
1215 |
|
---|
1216 | mUseForcedMaterial = false;
|
---|
1217 |
|
---|
1218 | return true;
|
---|
1219 | }
|
---|
1220 |
|
---|
1221 |
|
---|
1222 | void
|
---|
1223 | X3dExporter::ExportViewpoint(const Vector3 &point,
|
---|
1224 | const Vector3 &direction)
|
---|
1225 | {
|
---|
1226 | stream<<"<Viewpoint "<<endl;
|
---|
1227 |
|
---|
1228 | stream<<"position=\""<<point.x<<" "<<point.y<<" "<<point.z<<"\""<<endl;
|
---|
1229 | // stream<<"orientation "<<direction.x<<direction.y<<direction.z<<endl;
|
---|
1230 |
|
---|
1231 | stream<<">"<<endl;
|
---|
1232 | stream<<"</Viewpoint>"<<endl;
|
---|
1233 |
|
---|
1234 | }
|
---|
1235 |
|
---|
1236 |
|
---|
1237 |
|
---|
1238 | void X3dExporter::ExportBeam(const Beam &beam, const AxisAlignedBox3 &box)
|
---|
1239 | {
|
---|
1240 | if (beam.mMesh)
|
---|
1241 | {
|
---|
1242 | ExportMesh(beam.mMesh);
|
---|
1243 | return;
|
---|
1244 | }
|
---|
1245 |
|
---|
1246 | PolygonContainer polys;
|
---|
1247 | //ExportBox(beam.mBox);
|
---|
1248 |
|
---|
1249 | const float zfar = 2.0f * Magnitude(box.Diagonal());
|
---|
1250 |
|
---|
1251 | // box should not never remove part of beam polygons
|
---|
1252 | Vector3 bmin = beam.mBox.Min() - Vector3(zfar * 2.0f);
|
---|
1253 | Vector3 bmax = beam.mBox.Max() + Vector3(zfar * 2.0f);
|
---|
1254 |
|
---|
1255 | AxisAlignedBox3 bbox(bmin, bmax);
|
---|
1256 | Plane3 fplane;
|
---|
1257 | fplane.mNormal = -beam.mPlanes[0].mNormal;
|
---|
1258 |
|
---|
1259 | fplane.mD = beam.mPlanes[0].mD - zfar - 1.0f;
|
---|
1260 |
|
---|
1261 | vector<Plane3> planes = beam.mPlanes;
|
---|
1262 | planes.push_back(fplane);
|
---|
1263 |
|
---|
1264 | for (int i = 0; i < planes.size(); ++ i)
|
---|
1265 | {
|
---|
1266 | Polygon3 *poly = bbox.CrossSection(planes[i]);
|
---|
1267 | if (!poly->Valid(Limits::Small))
|
---|
1268 | DEL_PTR(poly);
|
---|
1269 |
|
---|
1270 | for (int j = 0; (j < planes.size()) && poly; ++ j)
|
---|
1271 | {
|
---|
1272 | if (j != i)
|
---|
1273 | {
|
---|
1274 | Polygon3 *front = new Polygon3();
|
---|
1275 | Polygon3 *back = new Polygon3();
|
---|
1276 |
|
---|
1277 | poly->Split(planes[j], *front, *back, Limits::Small);
|
---|
1278 | DEL_PTR(poly);
|
---|
1279 | DEL_PTR(front);
|
---|
1280 |
|
---|
1281 | if (!back->Valid(Limits::Small))
|
---|
1282 | DEL_PTR(back);
|
---|
1283 | poly = back;
|
---|
1284 | }
|
---|
1285 | }
|
---|
1286 | if (poly)
|
---|
1287 | polys.push_back(poly);
|
---|
1288 | }
|
---|
1289 |
|
---|
1290 | ExportPolygons(polys);
|
---|
1291 | CLEAR_CONTAINER(polys);
|
---|
1292 | }
|
---|
1293 |
|
---|
1294 |
|
---|
1295 | }
|
---|
1296 |
|
---|