1 | #include "ViewCellsManager.h"
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2 | #include "RenderSimulator.h"
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3 | #include "Mesh.h"
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4 | #include "Triangle3.h"
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5 | #include "ViewCell.h"
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6 | #include "Environment.h"
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7 | #include "X3dParser.h"
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8 | #include "ViewCellBsp.h"
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9 | #include "KdTree.h"
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10 | #include "VspKdTree.h"
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11 | #include "Exporter.h"
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12 | #include "VspBspTree.h"
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13 |
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14 |
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15 | ViewCellsManager::ViewCellsManager():
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16 | mRenderSimulator(NULL),
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17 | mConstructionSamples(0),
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18 | mPostProcessSamples(0),
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19 | mVisualizationSamples(0)
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20 | {
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21 | // post processing stuff
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22 | environment->GetIntValue("ViewCells.PostProcessing.minPvsDif", mMinPvsDif);
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23 | environment->GetIntValue("ViewCells.PostProcessing.minPvs", mMinPvs);
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24 | environment->GetIntValue("ViewCells.PostProcessing.maxPvs", mMaxPvs);
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25 | }
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26 |
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27 | ViewCellsManager::ViewCellsManager(int constructionSamples):
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28 | mConstructionSamples(constructionSamples),
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29 | mRenderSimulator(NULL),
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30 | mPostProcessSamples(0),
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31 | mVisualizationSamples(0)
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32 | {
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33 | // post processing stuff
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34 | environment->GetIntValue("ViewCells.PostProcessing.minPvsDif", mMinPvsDif);
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35 | environment->GetIntValue("ViewCells.PostProcessing.minPvs", mMinPvs);
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36 | environment->GetIntValue("ViewCells.PostProcessing.maxPvs", mMaxPvs);
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37 | }
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38 |
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39 | ViewCellsManager::~ViewCellsManager()
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40 | {
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41 | DEL_PTR(mRenderSimulator);
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42 | }
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43 |
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44 | void ViewCellsManager::InitRenderSimulator()
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45 | {
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46 | float objRenderCost = 0, vcOverhead = 0, moveSpeed = 0;
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47 |
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48 | environment->GetFloatValue("Simulation.objRenderCost",objRenderCost);
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49 | environment->GetFloatValue("Simulation.vcOverhead", vcOverhead);
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50 | environment->GetFloatValue("Simulation.moveSpeed", moveSpeed);
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51 |
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52 | mRenderSimulator->SetObjectRenderCost(objRenderCost);
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53 | mRenderSimulator->SetVcOverhead(vcOverhead);
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54 | mRenderSimulator->SetMoveSpeed(moveSpeed);
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55 | }
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56 |
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57 | bool ViewCellsManager::LoadViewCells(const string filename)
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58 | {
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59 | X3dParser parser;
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60 |
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61 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
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62 |
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63 | bool success = parser.ParseFile(filename, *this);
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64 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
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65 |
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66 | return success;
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67 | }
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68 |
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69 | void
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70 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays
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71 | )
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72 | {
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73 | // view cells not yet constructed
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74 | if (!ViewCellsConstructed())
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75 | return;
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76 |
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77 | VssRayContainer::const_iterator it, it_end = rays.end();
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78 | for (it = rays.begin(); it != it_end; ++ it) {
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79 | ComputeSampleContributions(*(*it));
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80 | }
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81 | }
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82 |
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83 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
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84 | {
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85 | mViewCells.push_back(viewCell);
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86 | }
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87 |
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88 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
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89 | ViewCellContainer &viewCells,
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90 | const int maxViewCells) const
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91 | {
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92 | // maximal max viewcells
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93 | int limit = maxViewCells > 0 ?
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94 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
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95 |
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96 | for (int i = 0; i < limit; ++ i)
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97 | {
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98 | Intersectable *object = objects[i];
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99 |
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100 | // extract the mesh instances
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101 | if (object->Type() == Intersectable::MESH_INSTANCE)
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102 | {
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103 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
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104 |
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105 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
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106 | viewCells.push_back(viewCell);
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107 | }
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108 | //TODO: transformed meshes
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109 | }
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110 | }
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111 |
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112 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
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113 | const float height) const
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114 | {
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115 | // one mesh per view cell
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116 | Mesh *mesh = new Mesh();
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117 |
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118 | //-- construct prism
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119 |
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120 | // bottom
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121 | mesh->mFaces.push_back(new Face(2,1,0));
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122 | // top
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123 | mesh->mFaces.push_back(new Face(3,4,5));
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124 | // sides
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125 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
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126 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
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127 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
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128 |
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129 | //--- extrude new vertices for top of prism
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130 | Vector3 triNorm = baseTri.GetNormal();
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131 |
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132 | Triangle3 topTri;
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133 |
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134 | // add base vertices and calculate top vertices
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135 | for (int i = 0; i < 3; ++ i)
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136 | mesh->mVertices.push_back(baseTri.mVertices[i]);
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137 |
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138 | // add top vertices
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139 | for (int i = 0; i < 3; ++ i)
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140 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
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141 |
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142 | mesh->Preprocess();
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143 |
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144 | return GenerateViewCell(mesh);
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145 | }
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146 |
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147 | ViewCell *ViewCellsManager::MergeViewCells(ViewCell &front, ViewCell &back) const
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148 | {
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149 | // generate merged view cell
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150 | ViewCell *vc = GenerateViewCell();
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151 |
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152 | // merge pvs
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153 | vc->GetPvs().Merge(front.GetPvs(), back.GetPvs());
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154 |
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155 | //-- merge ray sets
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156 | stable_sort(front.mPiercingRays.begin(), front.mPiercingRays.end());
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157 | stable_sort(back.mPiercingRays.begin(), back.mPiercingRays.end());
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158 |
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159 | std::merge(front.mPiercingRays.begin(), front.mPiercingRays.end(),
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160 | back.mPiercingRays.begin(), back.mPiercingRays.end(),
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161 | vc->mPiercingRays.begin());
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162 |
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163 | return vc;
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164 | }
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165 |
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166 | SimulationStatistics ViewCellsManager::SimulateRendering() const
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167 | {
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168 | if (!ViewCellsConstructed() || !mRenderSimulator)
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169 | return SimulationStatistics();
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170 |
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171 | return mRenderSimulator->SimulateRendering();
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172 | }
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173 |
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174 | ViewCell *ViewCellsManager::GenerateViewCell(Mesh *mesh) const
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175 | {
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176 | return new ViewCell(mesh);
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177 | }
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178 |
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179 |
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180 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
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181 | {
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182 | mVisualizationSamples = visSamples;
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183 | }
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184 |
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185 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
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186 | {
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187 | mConstructionSamples = constructionSamples;
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188 | }
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189 |
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190 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
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191 | {
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192 | mPostProcessSamples = postProcessSamples;
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193 | }
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194 |
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195 | int ViewCellsManager::GetVisualizationSamples() const
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196 | {
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197 | return mVisualizationSamples;
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198 | }
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199 |
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200 | int ViewCellsManager::GetConstructionSamples() const
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201 | {
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202 | return mConstructionSamples;
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203 | }
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204 |
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205 | int ViewCellsManager::GetPostProcessSamples() const
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206 | {
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207 | return mPostProcessSamples;
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208 | }
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209 |
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210 | /**********************************************************************/
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211 | /* BspViewCellsManager implementation */
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212 | /**********************************************************************/
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213 |
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214 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree, int constructionSamples):
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215 | ViewCellsManager(constructionSamples),
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216 | mBspTree(bspTree)
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217 | {
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218 | mRenderSimulator = new BspRenderSimulator(bspTree);
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219 | InitRenderSimulator();
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220 | }
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221 |
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222 |
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223 | BspViewCellsManager::~BspViewCellsManager()
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224 | {
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225 | ViewCellContainer vc;
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226 | mBspTree->CollectViewCells(vc);
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227 |
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228 | CLEAR_CONTAINER(vc);
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229 | }
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230 |
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231 | bool BspViewCellsManager::ViewCellsConstructed() const
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232 | {
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233 | return mBspTree->GetRoot() != NULL;
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234 | }
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235 |
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236 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
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237 | {
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238 | return new BspViewCell(mesh);
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239 | }
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240 |
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241 | int BspViewCellsManager::Construct(const ObjectContainer &objects,
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242 | const VssRayContainer &rays,
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243 | AxisAlignedBox3 *sceneBbox)
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244 | {
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245 | // if view cells were already constructed
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246 | if (ViewCellsConstructed())
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247 | return 0;
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248 |
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249 | int sampleContributions = 0;
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250 |
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251 | RayContainer sampleRays;
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252 |
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253 | int limit = min (mConstructionSamples, (int)rays.size());
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254 |
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255 | // construct view cells using the collected samples
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256 | Debug << "construcing bsp view cells from "
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257 | << limit << " samples " << endl;
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258 |
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259 | for (int i = 0; i < limit; ++ i)
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260 | sampleRays.push_back(new Ray(*rays[i]));
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261 |
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262 | if (mViewCells.empty()) // no view cells loaded
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263 | mBspTree->Construct(objects, sampleRays);
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264 | else
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265 | mBspTree->Construct(mViewCells);
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266 |
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267 | Debug << mBspTree->GetStatistics() << endl;
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268 |
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269 | return sampleContributions;
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270 | }
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271 |
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272 | void
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273 | ViewCellsManager::ComputeSampleContributions(VssRay &ray)
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274 | {
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275 |
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276 | ViewCellContainer viewcells;
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277 |
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278 | CastLineSegment(ray.mOrigin,
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279 | ray.mTermination,
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280 | viewcells
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281 | );
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282 |
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283 | ViewCellContainer::const_iterator it = viewcells.begin();
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284 | for (; it != viewcells.end(); ++it) {
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285 | ViewCell *viewcell = *it;
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286 |
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287 | // if ray not outside of view space
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288 | float contribution;
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289 | bool added =
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290 | viewcell->GetPvs().AddSample(ray.mTerminationObject,
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291 | contribution
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292 | );
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293 | if (added)
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294 | ray.mPvsContribution++;
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295 |
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296 | ray.mRelativePvsContribution += contribution;
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297 | }
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298 |
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299 | }
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300 |
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301 | int
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302 | BspViewCellsManager::CastLineSegment(const Vector3 &origin,
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303 | const Vector3 &termination,
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304 | ViewCellContainer &viewcells
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305 | )
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306 | {
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307 | return mBspTree->CastLineSegment(origin, termination, viewcells);
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308 | }
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309 |
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310 | int
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311 | BspViewCellsManager::PostProcess(const ObjectContainer &objects,
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312 | const VssRayContainer &rays)
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313 | {
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314 | if (!ViewCellsConstructed())
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315 | {
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316 | Debug << "view cells not constructed" << endl;
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317 | return 0;
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318 | }
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319 |
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320 | //-- post processing of bsp view cells
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321 | int vcSize = 0;
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322 | int pvsSize = 0;
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323 |
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324 | ViewCellsStatistics vcStats;
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325 | mBspTree->EvaluateViewCellsStats(vcStats);
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326 | Debug << "original view cell partition:\n" << vcStats << endl;
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327 |
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328 | if (1) // export view cells before merge
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329 | {
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330 | cout << "exporting initial view cells (=leaves) ... ";
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331 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
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332 |
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333 | if (exporter)
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334 | {
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335 | exporter->SetWireframe();
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336 | exporter->ExportBspLeaves(*mBspTree, vcStats.maxPvs);
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337 | //exporter->ExportBspViewCellPartition(*mBspTree, 0);
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338 |
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339 | if (0)
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340 | {
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341 | Material m;//= RandomMaterial();
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342 | m.mDiffuseColor = RgbColor(0, 1, 0);
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343 | exporter->SetForcedMaterial(m);
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344 | exporter->SetWireframe();
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345 |
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346 | exporter->ExportGeometry(objects);
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347 | }
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348 |
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349 | delete exporter;
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350 | }
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351 | cout << "finished" << endl;
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352 |
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353 | //-- render simulation
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354 | cout << "\nevaluating bsp view cells render time before merge ... ";
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355 |
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356 | const SimulationStatistics ss = SimulateRendering();
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357 |
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358 | cout << " finished" << endl;
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359 | cout << ss << endl;
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360 | Debug << ss << endl;
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361 | }
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362 |
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363 |
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364 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
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365 |
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366 | long startTime = GetTime();
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367 |
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368 | // $$JB we do not have connectivity information from the ray in the moment
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369 | // perhaps we could recast the rays or rember the cells traversed inside the
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370 | // vssray (which would on other hand create some overhead)
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371 | //-- merge or subdivide view cells
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372 | int merged = 0;
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373 | #if 0
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374 |
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375 | RayContainer::const_iterator rit, rit_end = rays.end();
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376 | vector<Ray::BspIntersection>::const_iterator iit;
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377 |
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378 | int limit = min((int)rays.size(), mPostProcessSamples);
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379 |
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380 | for (int i = 0; i < limit; ++ i)
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381 | {
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382 | Ray *ray = rays[i];
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383 |
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384 | // traverse leaves stored in the rays and compare and merge consecutive
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385 | // leaves (i.e., the neighbors in the tree)
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386 | if (ray->bspIntersections.size() < 2)
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387 | continue;
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388 |
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389 | iit = ray->bspIntersections.begin();
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390 |
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391 | BspLeaf *previousLeaf = (*iit).mLeaf;
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392 | ++ iit;
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393 |
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394 | for (; iit != ray->bspIntersections.end(); ++ iit)
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395 | {
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396 | BspLeaf *leaf = (*iit).mLeaf;
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397 |
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398 | if (ShouldMerge(leaf, previousLeaf))
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399 | {
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400 | MergeBspLeafViewCells(leaf, previousLeaf);
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401 |
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402 | ++ merged;
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403 | }
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404 |
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405 | previousLeaf = leaf;
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406 | }
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407 | }
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408 | #endif
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409 | //-- stats and visualizations
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410 | cout << "finished" << endl;
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411 | cout << "merged " << merged << " view cells in "
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412 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
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413 |
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414 | return merged;
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415 | }
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416 |
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417 | int BspViewCellsManager::GetType() const
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418 | {
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419 | return BSP;
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420 | }
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421 |
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422 |
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423 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
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424 | const VssRayContainer &sampleRays)
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425 | {
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426 | if (!ViewCellsConstructed())
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427 | return;
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428 |
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429 | //-- recount pvs
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430 | ViewCellsStatistics vcStats;
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431 | mBspTree->EvaluateViewCellsStats(vcStats);
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432 |
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433 | if (1) // export view cells
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434 | {
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435 | cout << "exporting view cells after merge ... ";
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436 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
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437 |
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438 | if (exporter)
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439 | {
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440 | exporter->ExportBspViewCellPartition(*mBspTree, vcStats.maxPvs);
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441 | //exporter->ExportBspViewCellPartition(*mBspTree, 0);
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442 | delete exporter;
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443 | }
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444 |
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445 | cout << "finished" << endl;
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446 | }
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447 |
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448 | //-- visualization of the BSP splits
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449 | bool exportSplits = false;
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450 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
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451 |
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452 | if (exportSplits)
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453 | {
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454 | cout << "exporting splits ... ";
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455 | ExportSplits(objects, sampleRays);
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456 | cout << "finished" << endl;
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457 | }
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458 |
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459 | ExportBspPvs(objects, sampleRays);
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460 | }
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461 |
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462 |
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463 | inline bool vc_gt(ViewCell *a, ViewCell *b)
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464 | {
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465 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
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466 | }
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467 |
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468 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects,
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469 | const VssRayContainer &sampleRays)
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470 | {
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471 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
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472 |
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473 | if (exporter)
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474 | {
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475 | Material m;
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476 | m.mDiffuseColor = RgbColor(1, 0, 0);
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477 | exporter->SetForcedMaterial(m);
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478 | exporter->SetWireframe();
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479 | exporter->ExportBspSplits(*mBspTree, true);
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480 |
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481 | // take forced material, else big scenes cannot be viewed
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482 | m.mDiffuseColor = RgbColor(0, 1, 0);
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483 | exporter->SetForcedMaterial(m);
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484 | exporter->SetFilled();
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485 |
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486 | exporter->ResetForcedMaterial();
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487 |
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488 | // export rays
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489 | if (0)
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490 | {
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491 | VssRayContainer outRays;
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492 |
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493 | int raysSize = min((int)sampleRays.size(), mVisualizationSamples);
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494 |
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495 | for (int i = 0; i < raysSize; ++ i)
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---|
496 | {
|
---|
497 | // only rays piercing geometry
|
---|
498 | outRays.push_back(sampleRays[i]);
|
---|
499 | }
|
---|
500 |
|
---|
501 | // export rays
|
---|
502 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
503 | }
|
---|
504 |
|
---|
505 | if (0)
|
---|
506 | exporter->ExportGeometry(objects);
|
---|
507 |
|
---|
508 | delete exporter;
|
---|
509 | }
|
---|
510 | }
|
---|
511 |
|
---|
512 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
513 | const VssRayContainer &sampleRays)
|
---|
514 | {
|
---|
515 | const int leafOut = 10;
|
---|
516 |
|
---|
517 | ViewCell::NewMail();
|
---|
518 |
|
---|
519 | //-- some rays for output
|
---|
520 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
521 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
522 |
|
---|
523 | //$$ JB
|
---|
524 | #if 0
|
---|
525 |
|
---|
526 | if (1)
|
---|
527 | {
|
---|
528 | //-- some random view cells and rays for output
|
---|
529 | vector<BspLeaf *> bspLeaves;
|
---|
530 |
|
---|
531 | for (int i = 0; i < leafOut; ++ i)
|
---|
532 | bspLeaves.push_back(mBspTree->GetRandomLeaf());
|
---|
533 |
|
---|
534 |
|
---|
535 | for (int i = 0; i < bspLeaves.size(); ++ i)
|
---|
536 | {
|
---|
537 | BspLeaf *leaf = bspLeaves[i];
|
---|
538 |
|
---|
539 | RayContainer vcRays;
|
---|
540 |
|
---|
541 | cout << "creating output for view cell " << i << " ... ";
|
---|
542 |
|
---|
543 | // check whether we can add the current ray to the output rays
|
---|
544 | for (int k = 0; k < raysOut; ++ k)
|
---|
545 | {
|
---|
546 | Ray *ray = sampleRays[k];
|
---|
547 |
|
---|
548 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
549 | {
|
---|
550 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
551 |
|
---|
552 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
553 | {
|
---|
554 | vcRays.push_back(ray);
|
---|
555 | }
|
---|
556 | }
|
---|
557 | }
|
---|
558 |
|
---|
559 | Intersectable::NewMail();
|
---|
560 |
|
---|
561 | BspViewCell *vc = dynamic_cast<BspViewCell *>(leaf->GetViewCell());
|
---|
562 |
|
---|
563 | //bspLeaves[j]->Mail();
|
---|
564 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
565 |
|
---|
566 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
567 | exporter->SetFilled();
|
---|
568 |
|
---|
569 | exporter->SetWireframe();
|
---|
570 | //exporter->SetFilled();
|
---|
571 |
|
---|
572 | Material m;//= RandomMaterial();
|
---|
573 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
574 | exporter->SetForcedMaterial(m);
|
---|
575 |
|
---|
576 | if (vc->GetMesh())
|
---|
577 | exporter->ExportViewCell(vc);
|
---|
578 | else
|
---|
579 | {
|
---|
580 | PolygonContainer vcGeom;
|
---|
581 | // export view cell geometry
|
---|
582 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
583 | exporter->ExportPolygons(vcGeom);
|
---|
584 | CLEAR_CONTAINER(vcGeom);
|
---|
585 | }
|
---|
586 |
|
---|
587 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
588 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
589 |
|
---|
590 | // export rays piercing this view cell
|
---|
591 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
592 |
|
---|
593 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
594 | exporter->SetForcedMaterial(m);
|
---|
595 |
|
---|
596 | // exporter->SetWireframe();
|
---|
597 | exporter->SetFilled();
|
---|
598 |
|
---|
599 | ViewCellPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
600 | // output PVS of view cell
|
---|
601 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
602 | {
|
---|
603 | Intersectable *intersect = (*it).first;
|
---|
604 | if (!intersect->Mailed())
|
---|
605 | {
|
---|
606 | exporter->ExportIntersectable(intersect);
|
---|
607 | intersect->Mail();
|
---|
608 | }
|
---|
609 | }
|
---|
610 |
|
---|
611 | DEL_PTR(exporter);
|
---|
612 | cout << "finished" << endl;
|
---|
613 | }
|
---|
614 | }
|
---|
615 | else
|
---|
616 | {
|
---|
617 | ViewCellContainer viewCells;
|
---|
618 | RayContainer vcRays;
|
---|
619 |
|
---|
620 | mBspTree->CollectViewCells(viewCells);
|
---|
621 | stable_sort(viewCells.begin(), viewCells.end(), vc_gt);
|
---|
622 |
|
---|
623 | int limit = min(leafOut, (int)viewCells.size());
|
---|
624 |
|
---|
625 | for (int i = 0; i < limit; ++ i)
|
---|
626 | {
|
---|
627 | cout << "creating output for view cell " << i << " ... ";
|
---|
628 |
|
---|
629 | Intersectable::NewMail();
|
---|
630 | BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCells[i]);
|
---|
631 |
|
---|
632 | cout << "creating output for view cell " << i << " ... ";
|
---|
633 | // check whether we can add the current ray to the output rays
|
---|
634 | for (int k = 0; k < raysOut; ++ k)
|
---|
635 | {
|
---|
636 | Ray *ray = sampleRays[k];
|
---|
637 |
|
---|
638 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
639 | {
|
---|
640 | BspLeaf *leaf = ray->bspIntersections[j].mLeaf;
|
---|
641 |
|
---|
642 | if (vc == leaf->GetViewCell())
|
---|
643 | {
|
---|
644 | vcRays.push_back(ray);
|
---|
645 | }
|
---|
646 | }
|
---|
647 | }
|
---|
648 |
|
---|
649 | //bspLeaves[j]->Mail();
|
---|
650 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
651 |
|
---|
652 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
653 |
|
---|
654 | exporter->SetWireframe();
|
---|
655 |
|
---|
656 | Material m;//= RandomMaterial();
|
---|
657 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
658 | exporter->SetForcedMaterial(m);
|
---|
659 |
|
---|
660 | if (vc->GetMesh())
|
---|
661 | exporter->ExportViewCell(vc);
|
---|
662 | else
|
---|
663 | {
|
---|
664 | PolygonContainer cell;
|
---|
665 | // export view cell
|
---|
666 | mBspTree->ConstructGeometry(vc, cell);
|
---|
667 | exporter->ExportPolygons(cell);
|
---|
668 | CLEAR_CONTAINER(cell);
|
---|
669 | }
|
---|
670 |
|
---|
671 |
|
---|
672 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
673 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
674 |
|
---|
675 |
|
---|
676 | // export rays piercing this view cell
|
---|
677 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
678 |
|
---|
679 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
680 | exporter->SetForcedMaterial(m);
|
---|
681 |
|
---|
682 | ViewCellPvsMap::const_iterator it,
|
---|
683 | it_end = vc->GetPvs().mEntries.end();
|
---|
684 |
|
---|
685 | // output PVS of view cell
|
---|
686 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
687 | {
|
---|
688 | Intersectable *intersect = (*it).first;
|
---|
689 | if (!intersect->Mailed())
|
---|
690 | {
|
---|
691 | Material m = RandomMaterial();
|
---|
692 |
|
---|
693 | exporter->SetForcedMaterial(m);
|
---|
694 |
|
---|
695 | exporter->ExportIntersectable(intersect);
|
---|
696 | intersect->Mail();
|
---|
697 | }
|
---|
698 | }
|
---|
699 |
|
---|
700 | DEL_PTR(exporter);
|
---|
701 | cout << "finished" << endl;
|
---|
702 | }
|
---|
703 | }
|
---|
704 | #endif
|
---|
705 | }
|
---|
706 |
|
---|
707 |
|
---|
708 | bool BspViewCellsManager::MergeBspLeafViewCells(BspLeaf *front, BspLeaf *back) const
|
---|
709 | {
|
---|
710 | BspViewCell *viewCell =
|
---|
711 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(), *back->GetViewCell()));
|
---|
712 |
|
---|
713 | if (!viewCell)
|
---|
714 | return false;
|
---|
715 |
|
---|
716 | //-- change pointer to view cells of all leaves associated with the previous view cells
|
---|
717 | BspViewCell *fVc = front->GetViewCell();
|
---|
718 | BspViewCell *bVc = back->GetViewCell();
|
---|
719 |
|
---|
720 | vector<BspLeaf *> fLeaves = fVc->mBspLeaves;
|
---|
721 | vector<BspLeaf *> bLeaves = bVc->mBspLeaves;
|
---|
722 |
|
---|
723 | vector<BspLeaf *>::const_iterator it;
|
---|
724 |
|
---|
725 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
726 | {
|
---|
727 | (*it)->SetViewCell(viewCell);
|
---|
728 | viewCell->mBspLeaves.push_back(*it);
|
---|
729 | }
|
---|
730 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
731 | {
|
---|
732 | (*it)->SetViewCell(viewCell);
|
---|
733 | viewCell->mBspLeaves.push_back(*it);
|
---|
734 | }
|
---|
735 |
|
---|
736 | DEL_PTR(fVc);
|
---|
737 | DEL_PTR(bVc);
|
---|
738 |
|
---|
739 | return true;
|
---|
740 | }
|
---|
741 |
|
---|
742 | bool BspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
743 | {
|
---|
744 | ViewCell *fvc = front->GetViewCell();
|
---|
745 | ViewCell *bvc = back->GetViewCell();
|
---|
746 |
|
---|
747 | if ((fvc == mBspTree->GetRootCell()) || (bvc == mBspTree->GetRootCell()) || (fvc == bvc))
|
---|
748 | return false;
|
---|
749 |
|
---|
750 | int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
751 |
|
---|
752 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
753 | {
|
---|
754 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
755 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
756 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
757 | {
|
---|
758 | return true;
|
---|
759 | }
|
---|
760 | }
|
---|
761 |
|
---|
762 | return false;
|
---|
763 | }
|
---|
764 |
|
---|
765 | void BspViewCellsManager::PrintStatistics(ostream &s) const
|
---|
766 | {
|
---|
767 | ViewCellsStatistics vcStats;
|
---|
768 | mBspTree->EvaluateViewCellsStats(vcStats);
|
---|
769 | s << vcStats << endl;
|
---|
770 | }
|
---|
771 |
|
---|
772 | /**********************************************************************/
|
---|
773 | /* KdViewCellsManager implementation */
|
---|
774 | /**********************************************************************/
|
---|
775 |
|
---|
776 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
777 | ViewCellsManager(),
|
---|
778 | mKdTree(kdTree),
|
---|
779 | mKdPvsDepth(100)
|
---|
780 | {
|
---|
781 | mRenderSimulator = new KdRenderSimulator(mKdTree);
|
---|
782 | InitRenderSimulator();
|
---|
783 | }
|
---|
784 |
|
---|
785 | int KdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
786 | const VssRayContainer &rays,
|
---|
787 | AxisAlignedBox3 *sceneBbox)
|
---|
788 | {
|
---|
789 | // if view cells already constructed
|
---|
790 | if (ViewCellsConstructed())
|
---|
791 | return 0;
|
---|
792 |
|
---|
793 | Debug << "Constructing bsp view cells" << endl;
|
---|
794 |
|
---|
795 | mKdTree->Construct();
|
---|
796 |
|
---|
797 | return 0;
|
---|
798 | }
|
---|
799 |
|
---|
800 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
801 | {
|
---|
802 | return mKdTree->GetRoot() != NULL;
|
---|
803 | }
|
---|
804 |
|
---|
805 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
806 | const VssRayContainer &rays)
|
---|
807 | {
|
---|
808 | return 0;
|
---|
809 | }
|
---|
810 |
|
---|
811 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
812 | const VssRayContainer &sampleRays)
|
---|
813 | {
|
---|
814 | if (!ViewCellsConstructed())
|
---|
815 | return;
|
---|
816 |
|
---|
817 | const int pvsOut = min((int)objects.size(), 10);
|
---|
818 |
|
---|
819 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
820 |
|
---|
821 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
822 |
|
---|
823 | for (int i = 0; i < limit; ++ i)
|
---|
824 | {
|
---|
825 | VssRay *ray = sampleRays[i];
|
---|
826 |
|
---|
827 | // check whether we can add this to the rays
|
---|
828 | for (int j = 0; j < pvsOut; j++)
|
---|
829 | {
|
---|
830 | if (objects[j] == ray->mTerminationObject)
|
---|
831 | {
|
---|
832 | rays[j].push_back(ray);
|
---|
833 | }
|
---|
834 | }
|
---|
835 | }
|
---|
836 |
|
---|
837 |
|
---|
838 | bool exportRays = false;
|
---|
839 | if (exportRays) {
|
---|
840 | Exporter *exporter = NULL;
|
---|
841 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
842 | exporter->SetWireframe();
|
---|
843 | exporter->ExportKdTree(*mKdTree);
|
---|
844 |
|
---|
845 | for (i=0; i < pvsOut; i++)
|
---|
846 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
847 | exporter->SetFilled();
|
---|
848 |
|
---|
849 | delete exporter;
|
---|
850 | }
|
---|
851 |
|
---|
852 | for (int k=0; k < pvsOut; k++)
|
---|
853 | {
|
---|
854 | Intersectable *object = objects[k];
|
---|
855 | char s[64];
|
---|
856 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
857 |
|
---|
858 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
859 | exporter->SetWireframe();
|
---|
860 |
|
---|
861 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
862 | Intersectable::NewMail();
|
---|
863 |
|
---|
864 | // avoid adding the object to the list
|
---|
865 | object->Mail();
|
---|
866 | ObjectContainer visibleObjects;
|
---|
867 |
|
---|
868 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
869 | {
|
---|
870 | KdNode *node = (*i).first;
|
---|
871 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
872 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
873 | }
|
---|
874 |
|
---|
875 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
876 | exporter->SetFilled();
|
---|
877 |
|
---|
878 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
879 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
880 |
|
---|
881 | Material m;
|
---|
882 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
883 | exporter->SetForcedMaterial(m);
|
---|
884 | exporter->ExportIntersectable(object);
|
---|
885 |
|
---|
886 | delete exporter;
|
---|
887 | }
|
---|
888 | DEL_PTR(rays);
|
---|
889 | }
|
---|
890 |
|
---|
891 | int KdViewCellsManager::GetType() const
|
---|
892 | {
|
---|
893 | return ViewCellsManager::KD;
|
---|
894 | }
|
---|
895 |
|
---|
896 |
|
---|
897 |
|
---|
898 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
899 | {
|
---|
900 | KdNode *node = leaf;
|
---|
901 |
|
---|
902 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
903 | node = node->mParent;
|
---|
904 | return node;
|
---|
905 | }
|
---|
906 |
|
---|
907 |
|
---|
908 | void KdViewCellsManager::PrintStatistics(ostream &s) const
|
---|
909 | {
|
---|
910 | }
|
---|
911 |
|
---|
912 |
|
---|
913 | int
|
---|
914 | KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
915 | const Vector3 &termination,
|
---|
916 | ViewCellContainer &viewcells
|
---|
917 | )
|
---|
918 | {
|
---|
919 |
|
---|
920 | return 0;
|
---|
921 | }
|
---|
922 |
|
---|
923 | /**********************************************************************/
|
---|
924 | /* VspKdViewCellsManager implementation */
|
---|
925 | /**********************************************************************/
|
---|
926 |
|
---|
927 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree,
|
---|
928 | int constructionSamples):
|
---|
929 | ViewCellsManager(constructionSamples),
|
---|
930 | mVspKdTree(vspKdTree)
|
---|
931 | {
|
---|
932 | mRenderSimulator = new VspKdRenderSimulator(vspKdTree);
|
---|
933 | mVspKdTree->SetViewCellsManager(this);
|
---|
934 |
|
---|
935 | InitRenderSimulator();
|
---|
936 | }
|
---|
937 |
|
---|
938 |
|
---|
939 | VspKdViewCellsManager::~VspKdViewCellsManager()
|
---|
940 | {
|
---|
941 | ViewCellContainer vc;
|
---|
942 | mVspKdTree->CollectViewCells(vc);
|
---|
943 |
|
---|
944 | CLEAR_CONTAINER(vc);
|
---|
945 | }
|
---|
946 |
|
---|
947 |
|
---|
948 | int VspKdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
949 | const VssRayContainer &rays,
|
---|
950 | AxisAlignedBox3 *sceneBbox)
|
---|
951 | {
|
---|
952 | // if view cells already constructed
|
---|
953 | if (ViewCellsConstructed())
|
---|
954 | return 0;
|
---|
955 |
|
---|
956 | VssRayContainer sampleRays;
|
---|
957 |
|
---|
958 | int limit = min (mConstructionSamples, (int)rays.size());
|
---|
959 |
|
---|
960 | for (int i = 0; i < limit; ++ i)
|
---|
961 | sampleRays.push_back(rays[i]);
|
---|
962 |
|
---|
963 | Debug << "constructing vsp kd tree using " << (int)sampleRays.size() << " samples" << endl;
|
---|
964 | mVspKdTree->Construct(rays, sceneBbox);
|
---|
965 |
|
---|
966 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
967 |
|
---|
968 | return 0;
|
---|
969 | }
|
---|
970 |
|
---|
971 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
972 | {
|
---|
973 | return mVspKdTree->GetRoot() != NULL;
|
---|
974 | }
|
---|
975 |
|
---|
976 |
|
---|
977 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
978 | {
|
---|
979 | return new VspKdViewCell(mesh);
|
---|
980 | }
|
---|
981 |
|
---|
982 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
983 | const VssRayContainer &rays)
|
---|
984 | {
|
---|
985 | if (!ViewCellsConstructed())
|
---|
986 | return 0;
|
---|
987 |
|
---|
988 | return mVspKdTree->MergeLeaves();
|
---|
989 | }
|
---|
990 |
|
---|
991 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
992 | const VssRayContainer &sampleRays)
|
---|
993 | {
|
---|
994 | if (!ViewCellsConstructed())
|
---|
995 | return;
|
---|
996 |
|
---|
997 | bool exportRays = true;
|
---|
998 |
|
---|
999 | //-- export tree leaves
|
---|
1000 | if (1)
|
---|
1001 | {
|
---|
1002 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
1003 | //exporter->SetWireframe();
|
---|
1004 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
1005 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
1006 |
|
---|
1007 | if (1)
|
---|
1008 | exporter->ExportGeometry(objects);
|
---|
1009 |
|
---|
1010 | if (exportRays)
|
---|
1011 | {
|
---|
1012 | int raysSize = 2000;
|
---|
1013 | float prob = raysSize / (float)sampleRays.size();
|
---|
1014 |
|
---|
1015 | exporter->SetWireframe();
|
---|
1016 |
|
---|
1017 | VssRayContainer rays;
|
---|
1018 |
|
---|
1019 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1020 | {
|
---|
1021 | if (RandomValue(0,1) < prob)
|
---|
1022 | rays.push_back(sampleRays[i]);
|
---|
1023 | }
|
---|
1024 |
|
---|
1025 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1026 | }
|
---|
1027 |
|
---|
1028 | delete exporter;
|
---|
1029 | }
|
---|
1030 |
|
---|
1031 | //-- export single leaves
|
---|
1032 | if (1)
|
---|
1033 | {
|
---|
1034 | vector<VspKdLeaf *> leafContainer;
|
---|
1035 | mVspKdTree->CollectLeaves(leafContainer);
|
---|
1036 |
|
---|
1037 | for (int i = 0; i < 10; ++ i)
|
---|
1038 | {
|
---|
1039 | char s[64];
|
---|
1040 | sprintf(s, "vsp_leaves%04d.x3d", i);
|
---|
1041 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1042 |
|
---|
1043 | // export geometry
|
---|
1044 | VspKdLeaf *leaf = leafContainer[Random((int)leafContainer.size())];
|
---|
1045 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
1046 |
|
---|
1047 | Material m;
|
---|
1048 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1049 | exporter->SetForcedMaterial(m);
|
---|
1050 | exporter->SetWireframe();
|
---|
1051 | exporter->ExportBox(box);
|
---|
1052 |
|
---|
1053 | //-- export stored rays
|
---|
1054 | VssRayContainer vssRays;
|
---|
1055 | leaf->GetRays(vssRays);
|
---|
1056 |
|
---|
1057 | VssRayContainer rays;
|
---|
1058 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
1059 |
|
---|
1060 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
1061 | rays.push_back(*it);
|
---|
1062 |
|
---|
1063 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1064 |
|
---|
1065 | //-- export stored PVS
|
---|
1066 | ObjectContainer pvsObj;
|
---|
1067 | leaf->ExtractPvs(pvsObj);
|
---|
1068 |
|
---|
1069 | exporter->ExportGeometry(pvsObj);
|
---|
1070 |
|
---|
1071 | delete exporter;
|
---|
1072 | }
|
---|
1073 | }
|
---|
1074 |
|
---|
1075 | // evaluate maximal pvs
|
---|
1076 | ViewCellsStatistics vcStats;
|
---|
1077 | mVspKdTree->EvaluateViewCellsStats(vcStats);
|
---|
1078 |
|
---|
1079 | //-- export final view cells
|
---|
1080 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
1081 | exporter->SetWireframe();
|
---|
1082 | //exporter->ExportVspKdTreeViewCells(*mVspKdTree, vcStats.maxPvs);
|
---|
1083 | exporter->ExportVspKdTreeViewCells(*mVspKdTree);
|
---|
1084 |
|
---|
1085 | if (1)
|
---|
1086 | {
|
---|
1087 | exporter->SetFilled();
|
---|
1088 | exporter->ExportGeometry(objects);
|
---|
1089 | }
|
---|
1090 | if (exportRays)
|
---|
1091 | {
|
---|
1092 | int raysSize = 2000;
|
---|
1093 | float prob = raysSize / (float)sampleRays.size();
|
---|
1094 |
|
---|
1095 | exporter->SetWireframe();
|
---|
1096 |
|
---|
1097 | VssRayContainer rays;
|
---|
1098 |
|
---|
1099 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1100 | {
|
---|
1101 | if (RandomValue(0,1) < prob)
|
---|
1102 | rays.push_back(sampleRays[i]);
|
---|
1103 | }
|
---|
1104 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1105 | }
|
---|
1106 |
|
---|
1107 | delete exporter;
|
---|
1108 | }
|
---|
1109 |
|
---|
1110 | int VspKdViewCellsManager::GetType() const
|
---|
1111 | {
|
---|
1112 | return VSP_KD;
|
---|
1113 | }
|
---|
1114 |
|
---|
1115 | void VspKdViewCellsManager::PrintStatistics(ostream &s) const
|
---|
1116 | {
|
---|
1117 | ViewCellsStatistics vcStats;
|
---|
1118 |
|
---|
1119 | mVspKdTree->EvaluateViewCellsStats(vcStats);
|
---|
1120 | Debug << vcStats << endl;
|
---|
1121 | }
|
---|
1122 |
|
---|
1123 |
|
---|
1124 | int
|
---|
1125 | VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1126 | const Vector3 &termination,
|
---|
1127 | ViewCellContainer &viewcells
|
---|
1128 | )
|
---|
1129 | {
|
---|
1130 |
|
---|
1131 | return 0;
|
---|
1132 | }
|
---|
1133 |
|
---|
1134 | /**********************************************************************/
|
---|
1135 | /* VspBspViewCellsManager implementation */
|
---|
1136 | /**********************************************************************/
|
---|
1137 |
|
---|
1138 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree,
|
---|
1139 | int constructionSamples):
|
---|
1140 | ViewCellsManager(constructionSamples),
|
---|
1141 | mVspBspTree(vspBspTree)
|
---|
1142 | {
|
---|
1143 | mRenderSimulator = new VspBspRenderSimulator(vspBspTree);
|
---|
1144 | InitRenderSimulator();
|
---|
1145 | }
|
---|
1146 |
|
---|
1147 |
|
---|
1148 |
|
---|
1149 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
1150 | {
|
---|
1151 | ViewCellContainer vc;
|
---|
1152 | mVspBspTree->CollectViewCells(vc);
|
---|
1153 |
|
---|
1154 | CLEAR_CONTAINER(vc);
|
---|
1155 | }
|
---|
1156 |
|
---|
1157 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
1158 | {
|
---|
1159 | return mVspBspTree->GetRoot() != NULL;
|
---|
1160 | }
|
---|
1161 |
|
---|
1162 |
|
---|
1163 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1164 | {
|
---|
1165 | return new BspViewCell(mesh);
|
---|
1166 | }
|
---|
1167 |
|
---|
1168 | int VspBspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1169 | const VssRayContainer &rays,
|
---|
1170 | AxisAlignedBox3 *sceneBbox)
|
---|
1171 | {
|
---|
1172 | // if view cells were already constructed
|
---|
1173 | if (ViewCellsConstructed())
|
---|
1174 | return 0;
|
---|
1175 |
|
---|
1176 | Debug << "Constructing bsp view cells" << endl;
|
---|
1177 |
|
---|
1178 | int sampleContributions = 0;
|
---|
1179 |
|
---|
1180 | VssRayContainer sampleRays;
|
---|
1181 |
|
---|
1182 | int limit = min (mConstructionSamples, (int)rays.size());
|
---|
1183 |
|
---|
1184 | for (int i = 0; i < limit; ++ i)
|
---|
1185 | sampleRays.push_back(rays[i]);
|
---|
1186 |
|
---|
1187 | mVspBspTree->Construct(sampleRays);
|
---|
1188 |
|
---|
1189 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
1190 |
|
---|
1191 | return sampleContributions;
|
---|
1192 | }
|
---|
1193 |
|
---|
1194 |
|
---|
1195 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1196 | const VssRayContainer &rays)
|
---|
1197 | {
|
---|
1198 | if (!ViewCellsConstructed())
|
---|
1199 | {
|
---|
1200 | Debug << "view cells not constructed" << endl;
|
---|
1201 | return 0;
|
---|
1202 | }
|
---|
1203 |
|
---|
1204 |
|
---|
1205 | //-- post processing of bsp view cells
|
---|
1206 | int vcSize = 0;
|
---|
1207 | int pvsSize = 0;
|
---|
1208 |
|
---|
1209 |
|
---|
1210 | ViewCellsStatistics vcStats;
|
---|
1211 | mVspBspTree->EvaluateViewCellsStats(vcStats);
|
---|
1212 | Debug << "original view cell partition:\n" << vcStats << endl;
|
---|
1213 |
|
---|
1214 | if (1) // export view cells
|
---|
1215 | {
|
---|
1216 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1217 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1218 |
|
---|
1219 | if (exporter)
|
---|
1220 | {
|
---|
1221 | exporter->SetWireframe();
|
---|
1222 | exporter->ExportBspViewCellPartition(*mVspBspTree, vcStats.maxPvs);
|
---|
1223 |
|
---|
1224 | if (0)
|
---|
1225 | {
|
---|
1226 | Material m;
|
---|
1227 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1228 | exporter->SetForcedMaterial(m);
|
---|
1229 | exporter->SetWireframe();
|
---|
1230 |
|
---|
1231 | exporter->ExportGeometry(objects);
|
---|
1232 | }
|
---|
1233 |
|
---|
1234 | delete exporter;
|
---|
1235 | }
|
---|
1236 | cout << "finished" << endl;
|
---|
1237 | }
|
---|
1238 |
|
---|
1239 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
1240 |
|
---|
1241 | long startTime = GetTime();
|
---|
1242 |
|
---|
1243 |
|
---|
1244 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
1245 | // perhaps we could recast the rays or rember the cells traversed inside the
|
---|
1246 | // vssray (which would on other hand create some overhead)
|
---|
1247 | //-- merge or subdivide view cells
|
---|
1248 | int merged = 0;
|
---|
1249 | #if 0
|
---|
1250 |
|
---|
1251 | RayContainer::const_iterator rit, rit_end = rays.end();
|
---|
1252 | vector<Ray::BspIntersection>::const_iterator iit;
|
---|
1253 |
|
---|
1254 | int limit = min((int)rays.size(), mPostProcessSamples);
|
---|
1255 |
|
---|
1256 | for (int i = 0; i < limit; ++ i)
|
---|
1257 | {
|
---|
1258 | VssRay *ray = rays[i];
|
---|
1259 |
|
---|
1260 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
1261 | // leaves (i.e., the neighbors in the tree)
|
---|
1262 | if (ray->bspIntersections.size() < 2)
|
---|
1263 | continue;
|
---|
1264 |
|
---|
1265 | iit = ray->bspIntersections.begin();
|
---|
1266 |
|
---|
1267 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
1268 | ++ iit;
|
---|
1269 |
|
---|
1270 | for (; iit != ray->bspIntersections.end(); ++ iit)
|
---|
1271 | {
|
---|
1272 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
1273 |
|
---|
1274 | if (ShouldMerge(leaf, previousLeaf))
|
---|
1275 | {
|
---|
1276 | MergeVspBspLeafViewCells(leaf, previousLeaf);
|
---|
1277 |
|
---|
1278 | ++ merged;
|
---|
1279 | }
|
---|
1280 |
|
---|
1281 | previousLeaf = leaf;
|
---|
1282 | }
|
---|
1283 | }
|
---|
1284 | #endif
|
---|
1285 | //-- stats and visualizations
|
---|
1286 | cout << "finished" << endl;
|
---|
1287 | cout << "merged " << merged << " view cells in "
|
---|
1288 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1289 |
|
---|
1290 |
|
---|
1291 | return merged;
|
---|
1292 | }
|
---|
1293 |
|
---|
1294 | int VspBspViewCellsManager::GetType() const
|
---|
1295 | {
|
---|
1296 | return VSP_BSP;
|
---|
1297 | }
|
---|
1298 |
|
---|
1299 |
|
---|
1300 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1301 | const VssRayContainer &sampleRays)
|
---|
1302 | {
|
---|
1303 | if (!ViewCellsConstructed())
|
---|
1304 | return;
|
---|
1305 |
|
---|
1306 | //-- recount pvs
|
---|
1307 | ViewCellsStatistics vcStats;
|
---|
1308 | mVspBspTree->EvaluateViewCellsStats(vcStats);
|
---|
1309 |
|
---|
1310 | if (1) // export view cells
|
---|
1311 | {
|
---|
1312 | cout << "exporting view cells after merge ... ";
|
---|
1313 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
1314 |
|
---|
1315 | if (exporter)
|
---|
1316 | {
|
---|
1317 | exporter->ExportBspViewCellPartition(*mVspBspTree, vcStats.maxPvs);
|
---|
1318 | delete exporter;
|
---|
1319 | }
|
---|
1320 |
|
---|
1321 | cout << "finished" << endl;
|
---|
1322 | }
|
---|
1323 |
|
---|
1324 | //-- visualization of the BSP splits
|
---|
1325 | bool exportSplits = false;
|
---|
1326 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
1327 |
|
---|
1328 | if (exportSplits)
|
---|
1329 | {
|
---|
1330 | cout << "exporting splits ... ";
|
---|
1331 | ExportSplits(objects, sampleRays);
|
---|
1332 | cout << "finished" << endl;
|
---|
1333 | }
|
---|
1334 |
|
---|
1335 | ExportBspPvs(objects, sampleRays);
|
---|
1336 | }
|
---|
1337 |
|
---|
1338 |
|
---|
1339 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
1340 | const VssRayContainer &sampleRays)
|
---|
1341 | {
|
---|
1342 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
1343 |
|
---|
1344 | if (exporter)
|
---|
1345 | {
|
---|
1346 | Material m;
|
---|
1347 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1348 | exporter->SetForcedMaterial(m);
|
---|
1349 | exporter->SetWireframe();
|
---|
1350 |
|
---|
1351 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
1352 |
|
---|
1353 | // take forced material, else big scenes cannot be viewed
|
---|
1354 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1355 | exporter->SetForcedMaterial(m);
|
---|
1356 | exporter->SetFilled();
|
---|
1357 |
|
---|
1358 | exporter->ResetForcedMaterial();
|
---|
1359 |
|
---|
1360 | // export rays
|
---|
1361 | if (0)
|
---|
1362 | {
|
---|
1363 | VssRayContainer outRays;
|
---|
1364 |
|
---|
1365 | int raysSize = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1366 |
|
---|
1367 | for (int i = 0; i < raysSize; ++ i)
|
---|
1368 | {
|
---|
1369 | // only rays piercing geometry
|
---|
1370 | outRays.push_back(sampleRays[i]);
|
---|
1371 | }
|
---|
1372 |
|
---|
1373 | // export rays
|
---|
1374 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
1375 | }
|
---|
1376 |
|
---|
1377 | if (0)
|
---|
1378 | exporter->ExportGeometry(objects);
|
---|
1379 |
|
---|
1380 | delete exporter;
|
---|
1381 | }
|
---|
1382 | }
|
---|
1383 |
|
---|
1384 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
1385 | const VssRayContainer &sampleRays)
|
---|
1386 | {
|
---|
1387 | const int leafOut = 10;
|
---|
1388 |
|
---|
1389 | ViewCell::NewMail();
|
---|
1390 |
|
---|
1391 | //-- some rays for output
|
---|
1392 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1393 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
1394 |
|
---|
1395 | if (1)
|
---|
1396 | {
|
---|
1397 | //-- some random view cells and rays for output
|
---|
1398 | vector<BspLeaf *> vspBspLeaves;
|
---|
1399 |
|
---|
1400 | for (int i = 0; i < leafOut; ++ i)
|
---|
1401 | vspBspLeaves.push_back(mVspBspTree->GetRandomLeaf());
|
---|
1402 |
|
---|
1403 | for (int i = 0; i < (int)vspBspLeaves.size(); ++ i)
|
---|
1404 | {
|
---|
1405 | VssRayContainer vcRays;
|
---|
1406 | cout << "creating output for view cell " << i << " ... ";
|
---|
1407 |
|
---|
1408 | //$$JB
|
---|
1409 | #if 0
|
---|
1410 | // check whether we can add the current ray to the output rays
|
---|
1411 | for (int k = 0; k < raysOut; ++ k)
|
---|
1412 | {
|
---|
1413 | VssRay *ray = sampleRays[k];
|
---|
1414 |
|
---|
1415 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1416 | {
|
---|
1417 | BspLeaf *leaf = ray->bspIntersections[j].mLeaf;
|
---|
1418 |
|
---|
1419 | if (vspBspLeaves[i]->GetViewCell() == leaf->GetViewCell())
|
---|
1420 | {
|
---|
1421 | vcRays.push_back(ray);
|
---|
1422 | }
|
---|
1423 | }
|
---|
1424 | }
|
---|
1425 | #endif
|
---|
1426 |
|
---|
1427 | Intersectable::NewMail();
|
---|
1428 |
|
---|
1429 | BspViewCell *vc = dynamic_cast<BspViewCell *>
|
---|
1430 | (vspBspLeaves[i]->GetViewCell());
|
---|
1431 |
|
---|
1432 | //bspLeaves[j]->Mail();
|
---|
1433 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1434 |
|
---|
1435 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1436 | exporter->SetFilled();
|
---|
1437 |
|
---|
1438 | ViewCellPvsMap::iterator it = vc->GetPvs().mEntries.begin();
|
---|
1439 |
|
---|
1440 | exporter->SetWireframe();
|
---|
1441 | //exporter->SetFilled();
|
---|
1442 |
|
---|
1443 | Material m;//= RandomMaterial();
|
---|
1444 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1445 | exporter->SetForcedMaterial(m);
|
---|
1446 |
|
---|
1447 | if (vc->GetMesh())
|
---|
1448 | exporter->ExportViewCell(vc);
|
---|
1449 | else
|
---|
1450 | {
|
---|
1451 | PolygonContainer vcGeom;
|
---|
1452 |
|
---|
1453 | // export view cell geometry
|
---|
1454 | mVspBspTree->ConstructGeometry(vc, vcGeom);
|
---|
1455 | exporter->ExportPolygons(vcGeom);
|
---|
1456 | CLEAR_CONTAINER(vcGeom);
|
---|
1457 | }
|
---|
1458 |
|
---|
1459 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1460 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1461 |
|
---|
1462 | // export rays piercing this view cell
|
---|
1463 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
1464 | exporter->ExportRays(vspBspLeaves[i]->mVssRays, RgbColor(1, 1, 1));
|
---|
1465 |
|
---|
1466 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1467 | exporter->SetForcedMaterial(m);
|
---|
1468 |
|
---|
1469 | exporter->SetWireframe();
|
---|
1470 | //exporter->SetFilled();
|
---|
1471 |
|
---|
1472 | // output PVS of view cell
|
---|
1473 | for (; it != vc->GetPvs().mEntries.end(); ++ it)
|
---|
1474 | {
|
---|
1475 | Intersectable *intersect = (*it).first;
|
---|
1476 | if (!intersect->Mailed())
|
---|
1477 | {
|
---|
1478 | exporter->ExportIntersectable(intersect);
|
---|
1479 | intersect->Mail();
|
---|
1480 | }
|
---|
1481 | }
|
---|
1482 |
|
---|
1483 | // output rest of the objects
|
---|
1484 | if (0)
|
---|
1485 | {
|
---|
1486 | Material m;//= RandomMaterial();
|
---|
1487 | m.mDiffuseColor = RgbColor(0, 0, 1);
|
---|
1488 | exporter->SetForcedMaterial(m);
|
---|
1489 |
|
---|
1490 | for (int j = 0; j < objects.size(); ++ j)
|
---|
1491 | if (!objects[j]->Mailed())
|
---|
1492 | {
|
---|
1493 | exporter->SetForcedMaterial(m);
|
---|
1494 | exporter->ExportIntersectable(objects[j]);
|
---|
1495 | objects[j]->Mail();
|
---|
1496 | }
|
---|
1497 | }
|
---|
1498 | DEL_PTR(exporter);
|
---|
1499 | cout << "finished" << endl;
|
---|
1500 | }
|
---|
1501 | }
|
---|
1502 | else
|
---|
1503 | {
|
---|
1504 | ViewCellContainer viewCells;
|
---|
1505 |
|
---|
1506 | mVspBspTree->CollectViewCells(viewCells);
|
---|
1507 | stable_sort(viewCells.begin(), viewCells.end(), vc_gt);
|
---|
1508 |
|
---|
1509 | int limit = min(leafOut, (int)viewCells.size());
|
---|
1510 |
|
---|
1511 | for (int i = 0; i < limit; ++ i)
|
---|
1512 | {
|
---|
1513 | cout << "creating output for view cell " << i << " ... ";
|
---|
1514 | VssRayContainer vcRays;
|
---|
1515 | Intersectable::NewMail();
|
---|
1516 | BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCells[i]);
|
---|
1517 |
|
---|
1518 | cout << "creating output for view cell " << i << " ... ";
|
---|
1519 | //$$ JB
|
---|
1520 | #if 0
|
---|
1521 | // check whether we can add the current ray to the output rays
|
---|
1522 | for (int k = 0; k < raysOut; ++ k)
|
---|
1523 | {
|
---|
1524 | Ray *ray = sampleRays[k];
|
---|
1525 |
|
---|
1526 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1527 | {
|
---|
1528 | BspLeaf *leaf = ray->bspIntersections[j].mLeaf;
|
---|
1529 |
|
---|
1530 | if (vc == leaf->GetViewCell())
|
---|
1531 | {
|
---|
1532 | vcRays.push_back(ray);
|
---|
1533 | }
|
---|
1534 | }
|
---|
1535 | }
|
---|
1536 | #endif
|
---|
1537 | //bspLeaves[j]->Mail();
|
---|
1538 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1539 |
|
---|
1540 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1541 |
|
---|
1542 | exporter->SetWireframe();
|
---|
1543 |
|
---|
1544 | Material m;//= RandomMaterial();
|
---|
1545 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1546 | exporter->SetForcedMaterial(m);
|
---|
1547 |
|
---|
1548 | if (vc->GetMesh())
|
---|
1549 | exporter->ExportViewCell(vc);
|
---|
1550 | else
|
---|
1551 | {
|
---|
1552 | PolygonContainer vcGeom;
|
---|
1553 | // export view cell
|
---|
1554 | mVspBspTree->ConstructGeometry(vc, vcGeom);
|
---|
1555 | exporter->ExportPolygons(vcGeom);
|
---|
1556 | CLEAR_CONTAINER(vcGeom);
|
---|
1557 | }
|
---|
1558 |
|
---|
1559 |
|
---|
1560 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1561 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1562 |
|
---|
1563 |
|
---|
1564 | // export rays piercing this view cell
|
---|
1565 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
1566 |
|
---|
1567 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1568 | exporter->SetForcedMaterial(m);
|
---|
1569 |
|
---|
1570 | ViewCellPvsMap::const_iterator it,
|
---|
1571 | it_end = vc->GetPvs().mEntries.end();
|
---|
1572 |
|
---|
1573 | // output PVS of view cell
|
---|
1574 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1575 | {
|
---|
1576 | Intersectable *intersect = (*it).first;
|
---|
1577 |
|
---|
1578 | if (!intersect->Mailed())
|
---|
1579 | {
|
---|
1580 | Material m = RandomMaterial();
|
---|
1581 |
|
---|
1582 | exporter->SetForcedMaterial(m);
|
---|
1583 |
|
---|
1584 | exporter->ExportIntersectable(intersect);
|
---|
1585 | intersect->Mail();
|
---|
1586 | }
|
---|
1587 | }
|
---|
1588 |
|
---|
1589 | DEL_PTR(exporter);
|
---|
1590 | cout << "finished" << endl;
|
---|
1591 | }
|
---|
1592 | }
|
---|
1593 | }
|
---|
1594 |
|
---|
1595 |
|
---|
1596 | void VspBspViewCellsManager::PrintStatistics(ostream &s) const
|
---|
1597 | {
|
---|
1598 | ViewCellsStatistics vcStats;
|
---|
1599 | mVspBspTree->EvaluateViewCellsStats(vcStats);
|
---|
1600 | s << vcStats << endl;
|
---|
1601 | }
|
---|
1602 |
|
---|
1603 | bool VspBspViewCellsManager::MergeVspBspLeafViewCells(BspLeaf *front,
|
---|
1604 | BspLeaf *back) const
|
---|
1605 | {
|
---|
1606 | BspViewCell *viewCell =
|
---|
1607 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(),
|
---|
1608 | *back->GetViewCell()));
|
---|
1609 |
|
---|
1610 | if (!viewCell)
|
---|
1611 | return false;
|
---|
1612 |
|
---|
1613 | // change view cells of all leaves associated with the
|
---|
1614 | // previous view cells
|
---|
1615 |
|
---|
1616 | BspViewCell *fVc = front->GetViewCell();
|
---|
1617 | BspViewCell *bVc = back->GetViewCell();
|
---|
1618 |
|
---|
1619 | vector<BspLeaf *> fLeaves = fVc->mBspLeaves;
|
---|
1620 | vector<BspLeaf *> bLeaves = bVc->mBspLeaves;
|
---|
1621 |
|
---|
1622 | vector<BspLeaf *>::const_iterator it;
|
---|
1623 |
|
---|
1624 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
1625 | {
|
---|
1626 | (*it)->SetViewCell(viewCell);
|
---|
1627 | viewCell->mBspLeaves.push_back(*it);
|
---|
1628 | }
|
---|
1629 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
1630 | {
|
---|
1631 | (*it)->SetViewCell(viewCell);
|
---|
1632 | viewCell->mBspLeaves.push_back(*it);
|
---|
1633 | }
|
---|
1634 |
|
---|
1635 | DEL_PTR(fVc);
|
---|
1636 | DEL_PTR(bVc);
|
---|
1637 |
|
---|
1638 | return true;
|
---|
1639 | }
|
---|
1640 |
|
---|
1641 | bool VspBspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
1642 | {
|
---|
1643 | ViewCell *fvc = front->GetViewCell();
|
---|
1644 | ViewCell *bvc = back->GetViewCell();
|
---|
1645 |
|
---|
1646 | if ((fvc == mVspBspTree->GetRootCell()) ||
|
---|
1647 | (bvc == mVspBspTree->GetRootCell()) ||
|
---|
1648 | (fvc == bvc))
|
---|
1649 | return false;
|
---|
1650 |
|
---|
1651 | const int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
1652 |
|
---|
1653 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
1654 | {
|
---|
1655 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
1656 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
1657 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
1658 | {
|
---|
1659 | return true;
|
---|
1660 | }
|
---|
1661 | }
|
---|
1662 |
|
---|
1663 | return false;
|
---|
1664 | }
|
---|
1665 |
|
---|
1666 |
|
---|
1667 | int
|
---|
1668 | VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1669 | const Vector3 &termination,
|
---|
1670 | ViewCellContainer &viewcells
|
---|
1671 | )
|
---|
1672 | {
|
---|
1673 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
1674 | }
|
---|