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 "IntersectableWrapper.h"
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17 | #include "Triangle3.h"
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18 |
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19 |
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20 | namespace GtpVisibilityPreprocessor {
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21 |
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22 |
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23 | VrmlExporter::VrmlExporter(const string filename): Exporter(filename)
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24 | {
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25 | stream.open(mFilename.c_str());
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26 | stream<<"#VRML V2.0 utf8"<<endl;
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27 | }
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28 |
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29 |
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30 | VrmlExporter::~VrmlExporter()
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31 | {
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32 | stream.close();
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33 | }
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34 |
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35 |
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36 | bool VrmlExporter::ExportRays(const RayContainer &rays,
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37 | const float length,
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38 | const RgbColor &color)
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39 | {
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40 | if (rays.empty())
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41 | return false;
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42 | RayContainer::const_iterator ri = rays.begin();
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43 |
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44 | stream<<"Shape {"<<endl;
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45 | stream<<"appearance Appearance {"<<endl;
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46 | stream << "material Material { diffuseColor=\"" << color.r << " " << color.g << " "
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47 | << color.b << "}" << endl;
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48 | stream<<"}"<<endl;
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49 |
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50 | stream<<"geometry IndexedLineSet { coordIndex [" << endl;
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51 |
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52 | int index = 0;
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53 | for (; ri != rays.end(); ri++)
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54 | {
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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 << "coord 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 | {
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66 | Vector3 a = (*ri)->GetLoc();
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67 |
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68 | Vector3 b;
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69 |
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70 | if (length < 0)
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71 | {
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72 | b = (*ri)->GetLoc() - length*(*ri)->GetDir();
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73 | }
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74 | else
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75 | {
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76 | if ((*ri)->intersections.empty())
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77 | b = (*ri)->GetLoc() + length*(*ri)->GetDir();
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78 | else
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79 | b = (*ri)->Extrap((*ri)->intersections[0].mT);
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80 | }
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81 |
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82 | stream << a.x << " " << a.y << " " << a.z << " ,";
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83 | stream << b.x << " " << b.y << " " << b.z << " ,\n";
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84 | }
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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 | stream << "}" << endl;
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89 |
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90 | return true;
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91 | }
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92 |
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93 |
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94 | bool VrmlExporter::ExportRays(const VssRayContainer &rays,
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95 | const RgbColor &color)
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96 | {
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97 |
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98 | if (rays.empty())
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99 | {
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100 | return false;
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101 | }
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102 |
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103 | stream << "Shape {" << endl;
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104 | stream << "appearance Appearance {" << endl;
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105 | stream << "material Material {" << endl;
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106 | stream << "diffuseColor " << color.r << " " << color.g << " " << color.b << endl;
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107 | stream << "}" << endl; // end material
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108 | stream << "}" << endl; // end appearance
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109 | stream << "geometry IndexedLineSet { coordIndex [" << endl;
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110 |
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111 | int index = 0;
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112 | VssRayContainer::const_iterator ri = rays.begin();
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113 |
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114 | for (; ri != rays.end(); ++ ri)
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115 | {
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116 | stream << index << " " << index + 1 << " -1\n";
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117 | index += 2 ;
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118 | }
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119 |
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120 | stream << "]" << endl;
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121 | stream << "coord Coordinate { point [" << endl;
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122 |
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123 | for (ri = rays.begin(); ri != rays.end(); ++ ri)
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124 | {
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125 | const Vector3 a = (*ri)->GetOrigin();
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126 | const Vector3 b = (*ri)->mTerminationObject ? (*ri)->GetTermination() : a + 1000 * Normalize((*ri)->GetDir());
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127 |
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128 | #if _DEBUG
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129 | bool isnan = false;
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130 | if (!a.CheckValidity())
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131 | {
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132 | cout << "error a"<<endl;
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133 | isnan = true;
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134 | }
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135 |
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136 | if (!b.CheckValidity())
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137 | {
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138 | cout << "error b"<<endl;
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139 | isnan = true;
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140 | }
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141 | if (isnan)
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142 | continue;
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143 | #endif
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144 | stream << a.x << " " << a.y << " " << a.z << " ,";
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145 | stream << b.x << " " << b.y << " " << b.z << " ,\n";
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146 | }
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147 |
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148 | stream << "]" << endl;
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149 | stream << "}" << endl;
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150 | stream << "}" << endl;
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151 | stream << "}" << endl;
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152 |
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153 | return true;
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154 | }
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155 |
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156 |
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157 | void VrmlExporter::ExportSceneNode(SceneGraphNode *node)
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158 | {
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159 | stream << "Group {" << endl;
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160 |
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161 | SceneGraphNodeContainer::iterator ni = node->mChildren.begin();
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162 |
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163 | for (; ni != node->mChildren.end(); ni++)
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164 | {
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165 | ExportSceneNode(*ni);
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166 | }
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167 | ObjectContainer::const_iterator mi = node->mGeometry.begin();
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168 |
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169 | for (; mi != node->mGeometry.end(); mi++)
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170 | {
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171 | // export the transform...
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172 | ExportIntersectable(*mi);
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173 | }
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174 |
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175 | stream<<"</Group>"<<endl;
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176 | }
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177 |
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178 |
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179 | void VrmlExporter::ExportBspLeaves(const BspTree &tree, const int maxPvs)
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180 | {
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181 | stack<pair<BspNode *, BspNodeGeometry *> > tStack;
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182 | ViewCell::NewMail();
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183 |
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184 | BspNodeGeometry *geom = new BspNodeGeometry();
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185 | tree.ConstructGeometry(tree.GetRoot(), *geom);
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186 |
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187 | tStack.push(pair<BspNode *, BspNodeGeometry *>(tree.GetRoot(), geom));
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188 |
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189 | // color code pvs
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190 | if (maxPvs)
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191 | {
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192 | mUseForcedMaterial = true;
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193 | }
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194 |
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195 | while (!tStack.empty())
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196 | {
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197 | BspNode *node = tStack.top().first;
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198 | BspNodeGeometry *cell = tStack.top().second;
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199 | tStack.pop();
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200 |
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201 | if (!node->IsLeaf())
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202 | {
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203 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
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204 |
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205 | BspNodeGeometry *front = new BspNodeGeometry();
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206 | BspNodeGeometry *back = new BspNodeGeometry();
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207 |
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208 | cell->SplitGeometry(*front,
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209 | *back,
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210 | interior->GetPlane(),
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211 | tree.GetBoundingBox(),
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212 | tree.GetEpsilon());
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213 |
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214 | tStack.push(pair<BspNode *, BspNodeGeometry *>(interior->GetFront(), front));
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215 | tStack.push(pair<BspNode *, BspNodeGeometry *>(interior->GetBack(), back));
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216 | }
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217 | else
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218 | {
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219 | if (maxPvs)
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220 | {
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221 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(node);
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222 |
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223 | mForcedMaterial.mDiffuseColor.b = 1.0f;
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224 | const float importance = (float)leaf->GetViewCell()->GetPvs().CountObjectsInPvs() / (float)maxPvs;
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225 |
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226 | mForcedMaterial.mDiffuseColor.r = importance;
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227 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
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228 | }
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229 |
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230 | ExportPolygons(cell->GetPolys());
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231 | }
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232 |
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233 | DEL_PTR(cell);
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234 | }
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235 | }
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236 |
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237 |
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238 | void VrmlExporter::ExportViewCell(ViewCell *viewCell)
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239 | {
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240 | if (viewCell->GetMesh())
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241 | {
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242 | ExportMesh(viewCell->GetMesh());
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243 | }
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244 | }
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245 |
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246 |
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247 | void VrmlExporter::ExportMesh(Mesh *mesh)
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248 | {
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249 | stream << "Shape {" << endl;
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250 | stream << "appearance Appearance {" << endl;
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251 |
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252 | // $$ tmp -> random material
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253 |
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254 | float r, g, b;
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255 |
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256 | if (mUseForcedMaterial)
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257 | {
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258 | r = mForcedMaterial.mDiffuseColor.r;
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259 | g = mForcedMaterial.mDiffuseColor.g;
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260 | b = mForcedMaterial.mDiffuseColor.b;
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261 |
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262 | }
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263 | else if (mesh->mMaterial)
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264 | {
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265 | r = mesh->mMaterial->mDiffuseColor.r;
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266 | g = mesh->mMaterial->mDiffuseColor.g;
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267 | b = mesh->mMaterial->mDiffuseColor.b;
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268 | }
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269 | else
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270 | {
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271 | r = RandomValue(0.5, 1.0);
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272 | g = RandomValue(0.5, 1.0);
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273 | b = RandomValue(0.5, 1.0);
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274 | }
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275 |
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276 | stream << "material Material {" << endl;
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277 | stream << "diffuseColor " << r << " " << g << " " << b << endl;
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278 | stream << "specularColor 0.0 0.0 0.0" << endl;
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279 |
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280 | stream << "}" << endl; // end material
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281 | stream << "}" << endl; // end apperance
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282 |
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283 |
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284 | // wireframe modes => set indexed lines
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285 | if (mWireframe)
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286 | {
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287 | stream << "geometry IndexedLineSet {" << endl;
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288 | }
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289 | else
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290 | {
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291 | //stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
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292 | stream << "geometry IndexedFaceSet {" << endl;
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293 | }
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294 |
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295 |
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296 | stream << "coordIndex [" << endl;
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297 |
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298 | FaceContainer::const_iterator fi = mesh->mFaces.begin();
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299 |
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300 | int index = 0;
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301 |
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302 | for (; fi != mesh->mFaces.end(); fi++)
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303 | {
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304 | Face *face = *fi;
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305 |
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306 | VertexIndexContainer::const_iterator vi = face->mVertexIndices.begin();
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307 |
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308 | for (; vi != face->mVertexIndices.end(); ++ vi)
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309 | {
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310 | stream << *vi << " ";
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311 | }
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312 |
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313 | if (mWireframe) // final line to finish polygon
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314 | {
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315 | stream << (*face->mVertexIndices.begin()) << " ";
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316 | }
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317 |
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318 | stream << "-1" << endl;
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319 | }
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320 |
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321 | stream << "]" << endl; // end coordIndex
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322 |
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323 |
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324 | stream << "coord Coordinate {" << endl;
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325 | stream << "point [" << endl;
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326 |
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327 | VertexContainer::const_iterator vi = mesh->mVertices.begin();
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328 |
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329 | for (; vi != mesh->mVertices.end(); vi++)
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330 | {
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331 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
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332 | stream << "," << endl;
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333 | }
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334 |
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335 | stream << "]" << endl; // end point
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336 | stream << "}" << endl; // end coord
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337 | stream << "}" << endl; // end geometry
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338 |
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339 | stream << "}" << endl; // end shape
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340 | }
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341 |
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342 |
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343 | void VrmlExporter::ExportPolygon(Polygon3 *poly)
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344 | {
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345 | stream << "Shape {" << endl;
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346 | stream << "appearance Appearance {" << endl;
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347 |
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348 | // $$ tmp -> random material
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349 | float r, g, b;
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350 |
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351 | if (mUseForcedMaterial)
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352 | {
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353 | r = mForcedMaterial.mDiffuseColor.r;
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354 | g = mForcedMaterial.mDiffuseColor.g;
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355 | b = mForcedMaterial.mDiffuseColor.b;
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356 | }
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357 | else if (poly->mMaterial)
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358 | {
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359 | r = poly->mMaterial->mDiffuseColor.r;
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360 | g = poly->mMaterial->mDiffuseColor.g;
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361 | b = poly->mMaterial->mDiffuseColor.b;
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362 | }
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363 | else
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364 | {
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365 | r = RandomValue(0.5, 1.0);
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366 | g = RandomValue(0.5, 1.0);
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367 | b = RandomValue(0.5, 1.0);
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368 | }
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369 |
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370 | stream << "material Material {" << endl;
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371 | stream << "diffuseColor " << r << " " << g << " " << b << endl;
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372 | stream << "specularColor 0.0 0.0 0.0" << endl;
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373 |
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374 | stream << "}" << endl; // end material
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375 | stream << "}" << endl; // end apperance
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376 |
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377 |
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378 | // wireframe modes => set indexed lines
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379 | if (mWireframe)
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380 | {
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381 | stream << "geometry IndexedLineSet {" << endl;
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382 | }
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383 | else
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384 | {
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385 | //stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
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386 | stream << "geometry IndexedFaceSet {" << endl;
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387 | }
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388 |
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389 |
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390 | stream << "coordIndex [" << endl;
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391 |
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392 |
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393 | int index = 0;
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394 |
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395 | VertexContainer::const_iterator vi;
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396 |
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397 | for (index = 0; index < (int)poly->mVertices.size(); ++ index)
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398 | {
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399 | stream << index << " ";
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400 | }
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401 |
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402 | if (mWireframe) // final line to finish polygon
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403 | {
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404 | stream << "0 ";
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405 | }
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406 |
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407 | stream << "-1" << endl;
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408 |
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409 | stream << "]" << endl; // end coordIndex
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410 |
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411 |
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412 | stream << "coord Coordinate {" << endl;
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413 | stream << "point [" << endl;
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414 |
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415 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
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416 | {
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417 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
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418 | stream << "," << endl;
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419 | }
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420 |
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421 | stream << "]" << endl; // end point
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422 | stream << "}" << endl; // end coord
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423 | stream << "}" << endl; // end geometry
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424 |
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425 | stream << "}" << endl; // end shape
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426 | }
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427 |
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428 |
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429 | void VrmlExporter::ExportPolygons(const PolygonContainer &polys)
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430 | {
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431 | stream << "Shape {" << endl;
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432 | stream << "appearance Appearance {" << endl;
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433 |
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434 | // $$ tmp -> random material
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435 |
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436 | float r, g, b;
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437 |
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438 | if (mUseForcedMaterial)
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439 | {
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440 | r = mForcedMaterial.mDiffuseColor.r;
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441 | g = mForcedMaterial.mDiffuseColor.g;
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442 | b = mForcedMaterial.mDiffuseColor.b;
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443 | }
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444 | else
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445 | {
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446 | r = RandomValue(0.5, 1.0);
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447 | g = RandomValue(0.5, 1.0);
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448 | b = RandomValue(0.5, 1.0);
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449 | }
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450 |
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451 | stream << "material Material {" << endl;
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452 | stream << "diffuseColor " << r << " " << g << " " << b << endl;
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453 | stream << "specularColor 0.0 0.0 0.0" << endl;
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454 |
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455 | stream << "}" << endl; // end material
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456 | stream << "}" << endl; // end apperance
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457 |
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458 | // wireframe modes => set indexed lines
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459 | if (mWireframe)
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460 | {
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461 | stream << "geometry IndexedLineSet {" << endl;
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462 | }
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463 | else
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464 | {
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465 | //stream<<"<IndexedFaceSet ccw=\"TRUE\" coordIndex=\""<<endl;
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466 | stream << "geometry IndexedFaceSet {" << endl;
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467 | }
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468 |
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469 | stream << "coordIndex [" << endl;
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470 |
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471 | int index = 0;
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472 |
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473 | PolygonContainer::const_iterator pit;
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474 |
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475 | VertexContainer::const_iterator vi;
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476 |
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477 | for (pit = polys.begin(); pit != polys.end(); ++ pit)
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478 | {
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479 | Polygon3 *poly = *pit;
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480 | int startIdx = index;
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481 |
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482 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
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483 | {
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484 | stream << index ++ << " ";
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485 | }
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486 |
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487 | stream << startIdx << " ";// finish line
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488 | stream << "-1" << endl;
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489 | }
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490 |
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491 | stream << "]" << endl; // end coordIndex
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492 |
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493 | stream << "coord Coordinate {" << endl;
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494 | stream << "point [" << endl;
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495 |
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496 |
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497 | for (pit = polys.begin(); pit != polys.end(); ++ pit)
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498 | {
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499 | Polygon3 *poly = *pit;
|
---|
500 | for (vi = poly->mVertices.begin(); vi != poly->mVertices.end(); ++vi)
|
---|
501 | {
|
---|
502 | stream << (*vi).x << " " << (*vi).y << " " << (*vi).z;
|
---|
503 | stream << "," << endl;
|
---|
504 | }
|
---|
505 | }
|
---|
506 |
|
---|
507 | stream << "]" << endl; // end point
|
---|
508 | stream << "}" << endl; // end coord
|
---|
509 | stream << "}" << endl; // end geometry
|
---|
510 |
|
---|
511 | stream << "}" << endl; // end shape
|
---|
512 | }
|
---|
513 |
|
---|
514 |
|
---|
515 | bool VrmlExporter::ExportBox(const AxisAlignedBox3 &box)
|
---|
516 | {
|
---|
517 | Mesh *mesh = new Mesh;
|
---|
518 |
|
---|
519 | // add 8 vertices of the box
|
---|
520 | int index = (int)mesh->mVertices.size();
|
---|
521 |
|
---|
522 | for (int i=0; i < 8; i++)
|
---|
523 | {
|
---|
524 | Vector3 v;
|
---|
525 | box.GetVertex(i, v);
|
---|
526 | mesh->mVertices.push_back(v);
|
---|
527 | }
|
---|
528 |
|
---|
529 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
530 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
531 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
532 |
|
---|
533 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
534 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
535 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
536 |
|
---|
537 | ExportMesh(mesh);
|
---|
538 |
|
---|
539 | delete mesh;
|
---|
540 |
|
---|
541 | return true;
|
---|
542 | }
|
---|
543 |
|
---|
544 | bool VrmlExporter::ExportBspTree(const BspTree &tree)
|
---|
545 | {
|
---|
546 | if (mExportRayDensity)
|
---|
547 | {
|
---|
548 | return ExportBspTreeRayDensity(tree);
|
---|
549 | }
|
---|
550 |
|
---|
551 | bool savedWireframe = mWireframe;
|
---|
552 |
|
---|
553 | SetWireframe();
|
---|
554 |
|
---|
555 | ExportBox(tree.GetBoundingBox());
|
---|
556 |
|
---|
557 | if (!savedWireframe)
|
---|
558 | SetFilled();
|
---|
559 |
|
---|
560 | // export view cells
|
---|
561 | ExportBspLeaves(tree);
|
---|
562 |
|
---|
563 | return true;
|
---|
564 | }
|
---|
565 |
|
---|
566 |
|
---|
567 | bool VrmlExporter::ExportKdTree(const KdTree &tree, const bool exportGeometry)
|
---|
568 | {
|
---|
569 | if (mExportRayDensity)
|
---|
570 | {
|
---|
571 | return ExportKdTreeRayDensity(tree);
|
---|
572 | }
|
---|
573 |
|
---|
574 | stack<KdNode *> tStack;
|
---|
575 |
|
---|
576 | tStack.push(tree.GetRoot());
|
---|
577 |
|
---|
578 | Mesh *mesh = new Mesh;
|
---|
579 |
|
---|
580 | while (!tStack.empty())
|
---|
581 | {
|
---|
582 | KdNode *node = tStack.top();
|
---|
583 |
|
---|
584 | tStack.pop();
|
---|
585 |
|
---|
586 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
587 | // add 6 vertices of the box
|
---|
588 | int index = (int)mesh->mVertices.size();
|
---|
589 |
|
---|
590 | for (int i=0; i < 8; i++)
|
---|
591 | {
|
---|
592 | Vector3 v;
|
---|
593 | box.GetVertex(i, v);
|
---|
594 | mesh->mVertices.push_back(v);
|
---|
595 | }
|
---|
596 |
|
---|
597 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
598 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
599 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
600 |
|
---|
601 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
602 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
603 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
604 |
|
---|
605 | if (!node->IsLeaf())
|
---|
606 | {
|
---|
607 | KdInterior *interior = (KdInterior *)node;
|
---|
608 | tStack.push(interior->mFront);
|
---|
609 | tStack.push(interior->mBack);
|
---|
610 | }
|
---|
611 | }
|
---|
612 |
|
---|
613 | ExportMesh(mesh);
|
---|
614 |
|
---|
615 | delete mesh;
|
---|
616 | return true;
|
---|
617 | }
|
---|
618 |
|
---|
619 |
|
---|
620 | bool VrmlExporter::ExportVssTree(const VssTree &tree)
|
---|
621 | {
|
---|
622 | stack<VssTreeNode *> tStack;
|
---|
623 |
|
---|
624 | tStack.push(tree.GetRoot());
|
---|
625 |
|
---|
626 | Mesh *mesh = new Mesh;
|
---|
627 | VssRayContainer rays;
|
---|
628 |
|
---|
629 | while (!tStack.empty())
|
---|
630 | {
|
---|
631 | VssTreeNode *node = tStack.top();
|
---|
632 |
|
---|
633 | tStack.pop();
|
---|
634 |
|
---|
635 | if (!node->IsLeaf())
|
---|
636 | {
|
---|
637 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
638 |
|
---|
639 | tStack.push(interior->front);
|
---|
640 | tStack.push(interior->back);
|
---|
641 | }
|
---|
642 | else
|
---|
643 | {
|
---|
644 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
645 | AxisAlignedBox3 box;
|
---|
646 | box = tree.GetBBox(leaf);
|
---|
647 | IncludeBoxInMesh(box, *mesh);
|
---|
648 |
|
---|
649 | if (tree.ValidLeaf(leaf))
|
---|
650 | {
|
---|
651 | Vector3 origin = box.Center();
|
---|
652 | box = tree.GetDirBBox(leaf);
|
---|
653 | VssRay *ray;
|
---|
654 |
|
---|
655 | const int indices[][2] = {{0,0}, {0,1}, {1,1}, {1,0}};
|
---|
656 | MeshInstance dummy(mesh);
|
---|
657 | for (int i=0; i < 4; i++)
|
---|
658 | {
|
---|
659 | // Vector3 v = box.GetVertex(indices[i][0], indices[i][1], 0);
|
---|
660 | Vector3 v = box.Center();
|
---|
661 |
|
---|
662 | Vector3 direction = VssRay::GetDirection(v.x, v.y);
|
---|
663 | if (Magnitude(direction) > Limits::Small)
|
---|
664 | {
|
---|
665 | direction.Normalize();
|
---|
666 | }
|
---|
667 | else
|
---|
668 | {
|
---|
669 | direction = Vector3(0, 1, 0);
|
---|
670 | }
|
---|
671 |
|
---|
672 | const float k = 100.0f * leaf->GetImportance();
|
---|
673 |
|
---|
674 |
|
---|
675 | // get 4 corners of the ray directions
|
---|
676 | ray = new VssRay(origin, origin + (direction * k), NULL, &dummy);
|
---|
677 | rays.push_back(ray);
|
---|
678 | }
|
---|
679 | }
|
---|
680 | }
|
---|
681 | }
|
---|
682 |
|
---|
683 | ExportMesh(mesh);
|
---|
684 | ExportRays(rays);
|
---|
685 | CLEAR_CONTAINER(rays);
|
---|
686 |
|
---|
687 | delete mesh;
|
---|
688 | return true;
|
---|
689 | }
|
---|
690 |
|
---|
691 |
|
---|
692 | bool VrmlExporter::ExportVssTree2(const VssTree &tree,
|
---|
693 | const Vector3 direction)
|
---|
694 | {
|
---|
695 | stack<VssTreeNode *> tStack;
|
---|
696 |
|
---|
697 | mUseForcedMaterial = true;
|
---|
698 |
|
---|
699 | Vector3 dirParam;
|
---|
700 |
|
---|
701 | dirParam.x = VssRay::GetDirParam(0, Normalize(direction));
|
---|
702 | dirParam.y = VssRay::GetDirParam(1, Normalize(direction));
|
---|
703 |
|
---|
704 | float maxImportance = 0.0f;
|
---|
705 |
|
---|
706 | tStack.push(tree.GetRoot());
|
---|
707 |
|
---|
708 | while (!tStack.empty())
|
---|
709 | {
|
---|
710 | VssTreeNode *node = tStack.top();
|
---|
711 | tStack.pop();
|
---|
712 |
|
---|
713 | if (!node->IsLeaf())
|
---|
714 | {
|
---|
715 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
716 |
|
---|
717 | if (interior->axis < 3)
|
---|
718 | {
|
---|
719 | tStack.push(interior->front);
|
---|
720 | tStack.push(interior->back);
|
---|
721 | }
|
---|
722 | else
|
---|
723 | {
|
---|
724 | if (dirParam[interior->axis-3] < interior->position)
|
---|
725 | tStack.push(interior->back);
|
---|
726 | else
|
---|
727 | tStack.push(interior->front);
|
---|
728 | }
|
---|
729 | }
|
---|
730 | else
|
---|
731 | {
|
---|
732 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
733 |
|
---|
734 | if (tree.ValidLeaf(leaf))
|
---|
735 | {
|
---|
736 | float i = leaf->GetImportance();
|
---|
737 |
|
---|
738 | if (i > maxImportance)
|
---|
739 | maxImportance = i;
|
---|
740 | }
|
---|
741 | }
|
---|
742 | }
|
---|
743 |
|
---|
744 | tStack.push(tree.GetRoot());
|
---|
745 |
|
---|
746 | while (!tStack.empty())
|
---|
747 | {
|
---|
748 | VssTreeNode *node = tStack.top();
|
---|
749 | tStack.pop();
|
---|
750 |
|
---|
751 | if (!node->IsLeaf())
|
---|
752 | {
|
---|
753 | VssTreeInterior *interior = (VssTreeInterior *)node;
|
---|
754 |
|
---|
755 | if (interior->axis < 3)
|
---|
756 | {
|
---|
757 | tStack.push(interior->front);
|
---|
758 | tStack.push(interior->back);
|
---|
759 | }
|
---|
760 | else
|
---|
761 | {
|
---|
762 | if (dirParam[interior->axis-3] < interior->position)
|
---|
763 | tStack.push(interior->back);
|
---|
764 | else
|
---|
765 | tStack.push(interior->front);
|
---|
766 | }
|
---|
767 | }
|
---|
768 | else
|
---|
769 | {
|
---|
770 | VssTreeLeaf *leaf = (VssTreeLeaf *)node;
|
---|
771 |
|
---|
772 | if (tree.ValidLeaf(leaf))
|
---|
773 | {
|
---|
774 | AxisAlignedBox3 box;
|
---|
775 | box = tree.GetBBox(leaf);
|
---|
776 | Mesh *mesh = new Mesh;
|
---|
777 | IncludeBoxInMesh(box, *mesh);
|
---|
778 |
|
---|
779 | // get 4 corners of the ray directions
|
---|
780 |
|
---|
781 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
782 | mForcedMaterial.mDiffuseColor.r = leaf->GetImportance()/maxImportance;
|
---|
783 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
784 |
|
---|
785 | ExportMesh(mesh);
|
---|
786 | delete mesh;
|
---|
787 | }
|
---|
788 | }
|
---|
789 | }
|
---|
790 |
|
---|
791 | mUseForcedMaterial = false;
|
---|
792 |
|
---|
793 | return true;
|
---|
794 | }
|
---|
795 |
|
---|
796 |
|
---|
797 | bool VrmlExporter::ExportBspTreeRayDensity(const BspTree &tree)
|
---|
798 | {
|
---|
799 | stack<BspNode *> tStack;
|
---|
800 |
|
---|
801 | tStack.push(tree.GetRoot());
|
---|
802 |
|
---|
803 | bool fm = mUseForcedMaterial;
|
---|
804 |
|
---|
805 | mUseForcedMaterial = true;
|
---|
806 |
|
---|
807 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
808 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
809 |
|
---|
810 | while (!tStack.empty())
|
---|
811 | {
|
---|
812 | BspNode *node = tStack.top();
|
---|
813 | tStack.pop();
|
---|
814 |
|
---|
815 | if (node->IsLeaf())
|
---|
816 | {
|
---|
817 | ViewCell *vc = dynamic_cast<BspLeaf *>(node)->GetViewCell();
|
---|
818 | #if 0
|
---|
819 | // set the mesh material according to the ray density
|
---|
820 | if (vc->mPassingRays.mRays)
|
---|
821 | {
|
---|
822 | float importance =
|
---|
823 | vc->mPassingRays.mContributions / (float)vc->mPassingRays.mRays;
|
---|
824 |
|
---|
825 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
826 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
827 | ExportViewCell(vc);
|
---|
828 |
|
---|
829 | }
|
---|
830 | #endif
|
---|
831 | }
|
---|
832 | else
|
---|
833 | {
|
---|
834 | BspInterior *interior = (BspInterior *)node;
|
---|
835 | tStack.push(interior->GetFront());
|
---|
836 | tStack.push(interior->GetBack());
|
---|
837 | }
|
---|
838 | }
|
---|
839 |
|
---|
840 | // restore the state of forced material
|
---|
841 | mUseForcedMaterial = fm;
|
---|
842 |
|
---|
843 | return true;
|
---|
844 | }
|
---|
845 |
|
---|
846 |
|
---|
847 | bool VrmlExporter::ExportKdTreeRayDensity(const KdTree &tree)
|
---|
848 | {
|
---|
849 | stack<KdNode *> tStack;
|
---|
850 |
|
---|
851 | tStack.push(tree.GetRoot());
|
---|
852 |
|
---|
853 | bool fm = mUseForcedMaterial;
|
---|
854 |
|
---|
855 | mUseForcedMaterial = true;
|
---|
856 |
|
---|
857 | mForcedMaterial.mDiffuseColor.g = 1.0f;
|
---|
858 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
859 |
|
---|
860 |
|
---|
861 | while (!tStack.empty())
|
---|
862 | {
|
---|
863 | KdNode *node = tStack.top();
|
---|
864 | tStack.pop();
|
---|
865 |
|
---|
866 | if (node->IsLeaf())
|
---|
867 | {
|
---|
868 | AxisAlignedBox3 box = tree.GetBox(node);
|
---|
869 | Mesh *mesh = new Mesh;
|
---|
870 |
|
---|
871 | // add 6 vertices of the box
|
---|
872 | int index = (int)mesh->mVertices.size();
|
---|
873 | for (int i=0; i < 8; i++)
|
---|
874 | {
|
---|
875 | Vector3 v;
|
---|
876 | box.GetVertex(i, v);
|
---|
877 | mesh->mVertices.push_back(v);
|
---|
878 | }
|
---|
879 |
|
---|
880 | mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
|
---|
881 | mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
|
---|
882 | mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
|
---|
883 |
|
---|
884 | mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
|
---|
885 | mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
|
---|
886 | mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
|
---|
887 |
|
---|
888 | // set the mesh material according to the ray density
|
---|
889 | KdLeaf *leaf = (KdLeaf *) node;
|
---|
890 |
|
---|
891 | if (leaf->mPassingRays.mRays)
|
---|
892 | {
|
---|
893 | const float importance =
|
---|
894 | leaf->mPassingRays.mContributions/(float)leaf->mPassingRays.mRays;
|
---|
895 | // float importance = leaf->mPassingRays.mContributions/1000.0f;
|
---|
896 | // float importance = leaf->mPassingRays.mRays/1000.0f;
|
---|
897 | ///(float)leaf->mPassingRays.mRays;
|
---|
898 | // mForcedMaterial.mDiffuseColor.r = log10(leaf->mPassingRays.mRays)/3.0f;
|
---|
899 |
|
---|
900 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
901 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
902 |
|
---|
903 | ExportMesh(mesh);
|
---|
904 | }
|
---|
905 |
|
---|
906 | delete mesh;
|
---|
907 | }
|
---|
908 | else
|
---|
909 | {
|
---|
910 | KdInterior *interior = (KdInterior *)node;
|
---|
911 | tStack.push(interior->mFront);
|
---|
912 | tStack.push(interior->mBack);
|
---|
913 | }
|
---|
914 | }
|
---|
915 |
|
---|
916 | // restore the state of forced material
|
---|
917 | mUseForcedMaterial = fm;
|
---|
918 |
|
---|
919 | return true;
|
---|
920 | }
|
---|
921 |
|
---|
922 |
|
---|
923 | struct BspSplitData
|
---|
924 | {
|
---|
925 | /// the current node
|
---|
926 | BspNode *mNode;
|
---|
927 |
|
---|
928 | vector<Plane3> mPlanes;
|
---|
929 | vector<bool> mSides;
|
---|
930 | bool mIsFront;
|
---|
931 | int mDepth;
|
---|
932 |
|
---|
933 | BspSplitData(BspNode *node):
|
---|
934 | mNode(node), mIsFront(false), mDepth(0)
|
---|
935 | {};
|
---|
936 |
|
---|
937 | BspSplitData(BspNode *node,
|
---|
938 | vector<Plane3> planes,
|
---|
939 | vector<bool> sides,
|
---|
940 | const bool isFront,
|
---|
941 | const int depth):
|
---|
942 | mNode(node), mPlanes(planes), mSides(sides),
|
---|
943 | mIsFront(isFront), mDepth(depth)
|
---|
944 | {};
|
---|
945 | };
|
---|
946 |
|
---|
947 |
|
---|
948 | void VrmlExporter::ExportLeavesGeometry(const BspTree &tree,
|
---|
949 | const vector<BspLeaf *> &leaves)
|
---|
950 | {
|
---|
951 | vector<BspLeaf *>::const_iterator it, it_end = leaves.end();
|
---|
952 |
|
---|
953 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
954 | {
|
---|
955 | BspNodeGeometry geom;
|
---|
956 | tree.ConstructGeometry(*it, geom);
|
---|
957 |
|
---|
958 | ExportPolygons(geom.GetPolys());
|
---|
959 | }
|
---|
960 | }
|
---|
961 |
|
---|
962 |
|
---|
963 | void VrmlExporter::ExportBspNodeSplits(BspNode *root,
|
---|
964 | const AxisAlignedBox3 &box,
|
---|
965 | const bool exportDepth,
|
---|
966 | const bool epsilon)
|
---|
967 | {
|
---|
968 | std::stack<BspSplitData> tStack;
|
---|
969 |
|
---|
970 | BspSplitData tData(root);
|
---|
971 | tStack.push(tData);
|
---|
972 |
|
---|
973 | PolygonContainer polys;
|
---|
974 | vector <int> depths;
|
---|
975 |
|
---|
976 | int maxDepth = 0;
|
---|
977 |
|
---|
978 | while (!tStack.empty())
|
---|
979 | {
|
---|
980 | // filter polygons donw the tree
|
---|
981 | BspSplitData tData = tStack.top();
|
---|
982 | tStack.pop();
|
---|
983 |
|
---|
984 | if (tData.mNode->IsLeaf())
|
---|
985 | {
|
---|
986 | if (tData.mDepth > maxDepth)
|
---|
987 | maxDepth = tData.mDepth;
|
---|
988 | }
|
---|
989 | else
|
---|
990 | {
|
---|
991 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
992 |
|
---|
993 | // add current side of split plane
|
---|
994 | if (tData.mNode != root)
|
---|
995 | tData.mSides.push_back(tData.mIsFront);
|
---|
996 |
|
---|
997 | // bounded plane is added to the polygons
|
---|
998 | Polygon3 *planePoly =
|
---|
999 | box.CrossSection(interior->GetPlane());
|
---|
1000 |
|
---|
1001 | // do all the splits with the previous planes
|
---|
1002 | for (int i = 0; i < (int)tData.mPlanes.size(); ++ i)
|
---|
1003 | {
|
---|
1004 | if (planePoly->ClassifyPlane(tData.mPlanes[i], epsilon)
|
---|
1005 | == Polygon3::SPLIT)
|
---|
1006 | {
|
---|
1007 | Polygon3 *frontPoly = new Polygon3();
|
---|
1008 | Polygon3 *backPoly = new Polygon3();
|
---|
1009 |
|
---|
1010 | planePoly->Split(tData.mPlanes[i],
|
---|
1011 | *frontPoly,
|
---|
1012 | *backPoly,
|
---|
1013 | epsilon);
|
---|
1014 |
|
---|
1015 | DEL_PTR(planePoly);
|
---|
1016 |
|
---|
1017 | if(tData.mSides[i] == true)
|
---|
1018 | {
|
---|
1019 | planePoly = frontPoly;
|
---|
1020 | DEL_PTR(backPoly);
|
---|
1021 | }
|
---|
1022 | else
|
---|
1023 | {
|
---|
1024 | planePoly = backPoly;
|
---|
1025 | DEL_PTR(frontPoly);
|
---|
1026 | }
|
---|
1027 | }
|
---|
1028 | }
|
---|
1029 |
|
---|
1030 | tData.mPlanes.push_back(interior->GetPlane()); // add plane to split planes
|
---|
1031 |
|
---|
1032 | if (planePoly->Valid(epsilon))
|
---|
1033 | {
|
---|
1034 | polys.push_back(planePoly);
|
---|
1035 | depths.push_back(tData.mDepth);
|
---|
1036 | }
|
---|
1037 | else
|
---|
1038 | DEL_PTR(planePoly);
|
---|
1039 |
|
---|
1040 | // push the children on the stack
|
---|
1041 | tStack.push(BspSplitData(interior->GetFront(), tData.mPlanes,
|
---|
1042 | tData.mSides, true, tData.mDepth + 1));
|
---|
1043 | tStack.push(BspSplitData(interior->GetBack(), tData.mPlanes,
|
---|
1044 | tData.mSides, false, tData.mDepth + 1));
|
---|
1045 | }
|
---|
1046 | }
|
---|
1047 |
|
---|
1048 | if (maxDepth > 0)
|
---|
1049 | {
|
---|
1050 | mUseForcedMaterial = true;
|
---|
1051 |
|
---|
1052 | for (int i = 0; i < (int)polys.size(); ++ i)
|
---|
1053 | {
|
---|
1054 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
1055 | float importance = (float)depths[i]/ (float)maxDepth;
|
---|
1056 |
|
---|
1057 | mForcedMaterial.mDiffuseColor.r = importance;
|
---|
1058 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
1059 |
|
---|
1060 | ExportPolygon(polys[i]);
|
---|
1061 | }
|
---|
1062 | }
|
---|
1063 | else
|
---|
1064 | {
|
---|
1065 | ExportPolygons(polys);
|
---|
1066 | }
|
---|
1067 |
|
---|
1068 | CLEAR_CONTAINER(polys);
|
---|
1069 | }
|
---|
1070 |
|
---|
1071 |
|
---|
1072 | void VrmlExporter::ExportBspSplits(const BspTree &tree,
|
---|
1073 | const bool exportDepth)
|
---|
1074 | {
|
---|
1075 | ExportBspNodeSplits(tree.GetRoot(),
|
---|
1076 | tree.GetBoundingBox(),
|
---|
1077 | exportDepth,
|
---|
1078 | tree.GetEpsilon());
|
---|
1079 | }
|
---|
1080 |
|
---|
1081 |
|
---|
1082 | void VrmlExporter::ExportBspSplits(const VspBspTree &tree,
|
---|
1083 | const bool exportDepth)
|
---|
1084 | {
|
---|
1085 | ExportBspNodeSplits(tree.GetRoot(),
|
---|
1086 | tree.GetBoundingBox(),
|
---|
1087 | exportDepth,
|
---|
1088 | tree.GetEpsilon());
|
---|
1089 | }
|
---|
1090 |
|
---|
1091 |
|
---|
1092 | void VrmlExporter::ExportBspSplitPlanes(const BspTree &tree)
|
---|
1093 | {
|
---|
1094 | std::stack<BspNode *> tStack;
|
---|
1095 |
|
---|
1096 | tStack.push(tree.GetRoot());
|
---|
1097 |
|
---|
1098 | PolygonContainer polys;
|
---|
1099 |
|
---|
1100 | while (!tStack.empty())
|
---|
1101 | {
|
---|
1102 | // filter polygons donw the tree
|
---|
1103 | BspNode *node = tStack.top();
|
---|
1104 | tStack.pop();
|
---|
1105 |
|
---|
1106 | if (!node->IsLeaf())
|
---|
1107 | {
|
---|
1108 | BspInterior *interior = dynamic_cast<BspInterior *>(node);
|
---|
1109 |
|
---|
1110 | // bounded plane is added to the polygons
|
---|
1111 | polys.push_back(tree.GetBoundingBox().CrossSection(interior->GetPlane()));
|
---|
1112 |
|
---|
1113 | // push the children on the stack
|
---|
1114 | tStack.push(interior->GetBack());
|
---|
1115 | tStack.push(interior->GetFront());
|
---|
1116 | }
|
---|
1117 | }
|
---|
1118 |
|
---|
1119 | ExportPolygons(polys);
|
---|
1120 | CLEAR_CONTAINER(polys);
|
---|
1121 | }
|
---|
1122 |
|
---|
1123 |
|
---|
1124 | bool VrmlExporter::ExportRssTree2(const RssTree &tree,
|
---|
1125 | const Vector3 direction)
|
---|
1126 | {
|
---|
1127 | stack<RssTreeNode *> tStack;
|
---|
1128 |
|
---|
1129 |
|
---|
1130 | mUseForcedMaterial = true;
|
---|
1131 |
|
---|
1132 | Vector3 dirParam;
|
---|
1133 |
|
---|
1134 | dirParam.x = VssRay::GetDirParam(0, Normalize(direction));
|
---|
1135 | dirParam.y = VssRay::GetDirParam(1, Normalize(direction));
|
---|
1136 |
|
---|
1137 | float maxImportance = 0.0f;
|
---|
1138 | tStack.push(tree.GetRoot());
|
---|
1139 | while (!tStack.empty()) {
|
---|
1140 |
|
---|
1141 | RssTreeNode *node = tStack.top();
|
---|
1142 | tStack.pop();
|
---|
1143 |
|
---|
1144 | if (!node->IsLeaf()) {
|
---|
1145 | RssTreeInterior *interior = (RssTreeInterior *)node;
|
---|
1146 | if (interior->axis < 3) {
|
---|
1147 | tStack.push(interior->front);
|
---|
1148 | tStack.push(interior->back);
|
---|
1149 | } else {
|
---|
1150 | if (dirParam[interior->axis-3] < interior->position)
|
---|
1151 | tStack.push(interior->back);
|
---|
1152 | else
|
---|
1153 | tStack.push(interior->front);
|
---|
1154 | }
|
---|
1155 | } else {
|
---|
1156 | RssTreeLeaf *leaf = (RssTreeLeaf *)node;
|
---|
1157 | if (tree.ValidLeaf(leaf)) {
|
---|
1158 | float i = leaf->GetImportance();
|
---|
1159 | if (i > maxImportance)
|
---|
1160 | maxImportance = i;
|
---|
1161 | }
|
---|
1162 | }
|
---|
1163 | }
|
---|
1164 |
|
---|
1165 | tStack.push(tree.GetRoot());
|
---|
1166 | while (!tStack.empty()) {
|
---|
1167 |
|
---|
1168 | RssTreeNode *node = tStack.top();
|
---|
1169 | tStack.pop();
|
---|
1170 |
|
---|
1171 |
|
---|
1172 | if (!node->IsLeaf()) {
|
---|
1173 | RssTreeInterior *interior = (RssTreeInterior *)node;
|
---|
1174 | if (interior->axis < 3) {
|
---|
1175 | tStack.push(interior->front);
|
---|
1176 | tStack.push(interior->back);
|
---|
1177 | } else {
|
---|
1178 | if (dirParam[interior->axis-3] < interior->position)
|
---|
1179 | tStack.push(interior->back);
|
---|
1180 | else
|
---|
1181 | tStack.push(interior->front);
|
---|
1182 | }
|
---|
1183 | } else {
|
---|
1184 | RssTreeLeaf *leaf = (RssTreeLeaf *)node;
|
---|
1185 | if (tree.ValidLeaf(leaf)) {
|
---|
1186 | AxisAlignedBox3 box;
|
---|
1187 | box = tree.GetShrankedBBox(leaf);
|
---|
1188 | Mesh *mesh = new Mesh;
|
---|
1189 | IncludeBoxInMesh(box, *mesh);
|
---|
1190 |
|
---|
1191 | // get 4 corners of the ray directions
|
---|
1192 |
|
---|
1193 | mForcedMaterial.mDiffuseColor.b = 1.0f;
|
---|
1194 | mForcedMaterial.mDiffuseColor.r = leaf->GetImportance()/maxImportance;
|
---|
1195 | mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
|
---|
1196 |
|
---|
1197 | ExportMesh(mesh);
|
---|
1198 | delete mesh;
|
---|
1199 | }
|
---|
1200 | }
|
---|
1201 | }
|
---|
1202 |
|
---|
1203 | mUseForcedMaterial = false;
|
---|
1204 |
|
---|
1205 | return true;
|
---|
1206 | }
|
---|
1207 |
|
---|
1208 |
|
---|
1209 | void
|
---|
1210 | VrmlExporter::ExportViewpoint(const Vector3 &point,
|
---|
1211 | const Vector3 &direction)
|
---|
1212 | {
|
---|
1213 | stream << "Viewpoint {" << endl;
|
---|
1214 |
|
---|
1215 | stream << "position " << point.x << " " << point.y << " " << point.z << endl;
|
---|
1216 | // stream<<"orientation "<<direction.x<<direction.y<<direction.z<<endl;
|
---|
1217 |
|
---|
1218 | stream << "}" << endl; // end view point;
|
---|
1219 |
|
---|
1220 | }
|
---|
1221 |
|
---|
1222 |
|
---|
1223 | void VrmlExporter::ExportBeam(const Beam &beam, const AxisAlignedBox3 &box)
|
---|
1224 | {
|
---|
1225 | if (beam.mMesh)
|
---|
1226 | {
|
---|
1227 | ExportMesh(beam.mMesh);
|
---|
1228 | return;
|
---|
1229 | }
|
---|
1230 |
|
---|
1231 | PolygonContainer polys;
|
---|
1232 | //ExportBox(beam.mBox);
|
---|
1233 |
|
---|
1234 | const float zfar = 2.0f * Magnitude(box.Diagonal());
|
---|
1235 |
|
---|
1236 | // box should not never remove part of beam polygons
|
---|
1237 | Vector3 bmin = beam.mBox.Min() - Vector3(zfar * 2.0f);
|
---|
1238 | Vector3 bmax = beam.mBox.Max() + Vector3(zfar * 2.0f);
|
---|
1239 |
|
---|
1240 | AxisAlignedBox3 bbox(bmin, bmax);
|
---|
1241 | Plane3 fplane;
|
---|
1242 | fplane.mNormal = -beam.mPlanes[0].mNormal;
|
---|
1243 |
|
---|
1244 | fplane.mD = beam.mPlanes[0].mD - zfar - 1.0f;
|
---|
1245 |
|
---|
1246 | vector<Plane3> planes = beam.mPlanes;
|
---|
1247 | planes.push_back(fplane);
|
---|
1248 |
|
---|
1249 | for (int i = 0; i < planes.size(); ++ i)
|
---|
1250 | {
|
---|
1251 | Polygon3 *poly = bbox.CrossSection(planes[i]);
|
---|
1252 | if (!poly->Valid(Limits::Small))
|
---|
1253 | DEL_PTR(poly);
|
---|
1254 |
|
---|
1255 | for (int j = 0; (j < planes.size()) && poly; ++ j)
|
---|
1256 | {
|
---|
1257 | if (j != i)
|
---|
1258 | {
|
---|
1259 | Polygon3 *front = new Polygon3();
|
---|
1260 | Polygon3 *back = new Polygon3();
|
---|
1261 |
|
---|
1262 | poly->Split(planes[j], *front, *back, Limits::Small);
|
---|
1263 | DEL_PTR(poly);
|
---|
1264 | DEL_PTR(front);
|
---|
1265 |
|
---|
1266 | if (!back->Valid(Limits::Small))
|
---|
1267 | DEL_PTR(back);
|
---|
1268 | poly = back;
|
---|
1269 | }
|
---|
1270 | }
|
---|
1271 | if (poly)
|
---|
1272 | polys.push_back(poly);
|
---|
1273 | }
|
---|
1274 |
|
---|
1275 | ExportPolygons(polys);
|
---|
1276 | CLEAR_CONTAINER(polys);
|
---|
1277 | }
|
---|
1278 |
|
---|
1279 | } |
---|