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