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 | mRenderer(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 | mTotalAreaValid(false),
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21 | mTotalArea(0.0f)
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22 | {
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23 | // post processing stuff
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24 | environment->GetIntValue("ViewCells.PostProcess.minPvsDif", mMinPvsDif);
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25 | environment->GetIntValue("ViewCells.PostProcess.minPvs", mMinPvs);
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26 | environment->GetIntValue("ViewCells.PostProcess.maxPvs", mMaxPvs);
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27 | }
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28 |
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29 | ViewCellsManager::ViewCellsManager(int constructionSamples):
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30 | mConstructionSamples(constructionSamples),
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31 | mRenderer(NULL),
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32 | mPostProcessSamples(0),
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33 | mVisualizationSamples(0)
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34 | {
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35 | // post processing stuff
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36 | environment->GetIntValue("ViewCells.PostProcess.minPvsDif", mMinPvsDif);
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37 | environment->GetIntValue("ViewCells.PostProcess.minPvs", mMinPvs);
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38 | environment->GetIntValue("ViewCells.PostProcess.maxPvs", mMaxPvs);
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39 | }
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40 |
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41 | ViewCellsManager::~ViewCellsManager()
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42 | {
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43 | DEL_PTR(mRenderer);
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44 |
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45 | CLEAR_CONTAINER(mViewCells);
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46 | }
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47 |
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48 | bool ViewCellsManager::LoadViewCells(const string filename)
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49 | {
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50 | X3dParser parser;
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51 |
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52 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
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53 |
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54 | bool success = parser.ParseFile(filename, *this);
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55 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
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56 |
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57 | return success;
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58 | }
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59 |
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60 | void ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays)
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61 | {
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62 | // view cells not yet constructed
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63 | if (!ViewCellsConstructed())
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64 | return;
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65 |
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66 | VssRayContainer::const_iterator it, it_end = rays.end();
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67 |
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68 | for (it = rays.begin(); it != it_end; ++ it)
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69 | {
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70 | ComputeSampleContributions(*(*it));
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71 | }
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72 | }
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73 |
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74 | void ViewCellsManager::EvaluateViewCellsStats()
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75 | {
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76 | mViewCellsStats.Reset();
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77 |
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78 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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79 |
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80 | for (it = mViewCells.begin(); it != it_end; ++ it)
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81 | (*it)->UpdateViewCellsStats(mViewCellsStats);
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82 | }
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83 |
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84 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
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85 | {
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86 | mViewCells.push_back(viewCell);
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87 | }
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88 |
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89 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
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90 | {
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91 | return viewCell->GetArea();
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92 | }
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93 |
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94 |
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95 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
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96 | {
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97 | return viewCell->GetVolume();
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98 | }
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99 |
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100 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
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101 | ViewCellContainer &viewCells,
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102 | const int maxViewCells) const
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103 | {
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104 | // maximal max viewcells
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105 | int limit = maxViewCells > 0 ?
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106 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
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107 |
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108 | for (int i = 0; i < limit; ++ i)
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109 | {
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110 | Intersectable *object = objects[i];
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111 |
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112 | // extract the mesh instances
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113 | if (object->Type() == Intersectable::MESH_INSTANCE)
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114 | {
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115 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
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116 |
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117 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
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118 | viewCells.push_back(viewCell);
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119 | }
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120 | //TODO: transformed meshes
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121 | }
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122 | }
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123 |
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124 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
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125 | const float height) const
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126 | {
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127 | // one mesh per view cell
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128 | Mesh *mesh = new Mesh();
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129 |
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130 | //-- construct prism
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131 |
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132 | // bottom
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133 | mesh->mFaces.push_back(new Face(2,1,0));
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134 | // top
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135 | mesh->mFaces.push_back(new Face(3,4,5));
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136 | // sides
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137 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
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138 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
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139 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
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140 |
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141 | //--- extrude new vertices for top of prism
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142 | Vector3 triNorm = baseTri.GetNormal();
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143 |
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144 | Triangle3 topTri;
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145 |
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146 | // add base vertices and calculate top vertices
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147 | for (int i = 0; i < 3; ++ i)
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148 | mesh->mVertices.push_back(baseTri.mVertices[i]);
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149 |
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150 | // add top vertices
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151 | for (int i = 0; i < 3; ++ i)
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152 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
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153 |
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154 | mesh->Preprocess();
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155 |
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156 | return GenerateViewCell(mesh);
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157 | }
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158 |
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159 | ViewCell *ViewCellsManager::MergeViewCells(ViewCell &front, ViewCell &back) const
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160 | {
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161 | // generate merged view cell
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162 | ViewCell *vc = GenerateViewCell();
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163 |
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164 | // merge pvs
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165 | vc->GetPvs().Merge(front.GetPvs(), back.GetPvs());
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166 |
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167 | //-- merge ray sets
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168 | stable_sort(front.mPiercingRays.begin(), front.mPiercingRays.end());
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169 | stable_sort(back.mPiercingRays.begin(), back.mPiercingRays.end());
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170 |
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171 | std::merge(front.mPiercingRays.begin(), front.mPiercingRays.end(),
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172 | back.mPiercingRays.begin(), back.mPiercingRays.end(),
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173 | vc->mPiercingRays.begin());
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174 |
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175 | return vc;
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176 | }
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177 |
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178 | void ViewCellsManager::SetRenderer(Renderer *renderer)
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179 | {
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180 | mRenderer = renderer;
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181 | }
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182 |
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183 | ViewCell *ViewCellsManager::GenerateViewCell(Mesh *mesh) const
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184 | {
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185 | return new ViewCell(mesh);
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186 | }
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187 |
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188 |
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189 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
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190 | {
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191 | mVisualizationSamples = visSamples;
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192 | }
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193 |
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194 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
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195 | {
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196 | mConstructionSamples = constructionSamples;
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197 | }
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198 |
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199 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
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200 | {
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201 | mPostProcessSamples = postProcessSamples;
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202 | }
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203 |
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204 | int ViewCellsManager::GetVisualizationSamples() const
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205 | {
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206 | return mVisualizationSamples;
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207 | }
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208 |
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209 | int ViewCellsManager::GetConstructionSamples() const
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210 | {
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211 | return mConstructionSamples;
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212 | }
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213 |
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214 | int ViewCellsManager::GetPostProcessSamples() const
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215 | {
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216 | return mPostProcessSamples;
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217 | }
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218 |
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219 | void
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220 | ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
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221 | {
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222 | ViewCellContainer::const_iterator it = mViewCells.begin();
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223 | stat.viewcells = 0;
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224 | stat.minPvs = 100000000;
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225 | stat.maxPvs = 0;
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226 | stat.avgPvs = 0.0f;
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227 |
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228 | for (; it != mViewCells.end(); ++it) {
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229 | ViewCell *viewcell = *it;
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230 | int pvsSize = viewcell->GetPvs().GetSize();
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231 | if ( pvsSize < stat.minPvs)
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232 | stat.minPvs = pvsSize;
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233 | if (pvsSize > stat.maxPvs)
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234 | stat.maxPvs = pvsSize;
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235 | stat.avgPvs += pvsSize;
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236 | stat.viewcells++;
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237 | }
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238 | if (stat.viewcells)
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239 | stat.avgPvs/=stat.viewcells;
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240 | }
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241 |
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242 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
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243 | {
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244 | s<<"############# Viewcell PVS STAT ##################\n";
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245 | PvsStatistics pvsStat;
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246 | GetPvsStatistics(pvsStat);
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247 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
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248 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
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249 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
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250 | }
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251 |
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252 | ViewCellContainer &ViewCellsManager::GetViewCells()
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253 | {
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254 | return mViewCells;
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255 | }
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256 |
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257 | void ViewCellsManager::ResetViewCells()
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258 | {
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259 | mViewCells.clear();
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260 | CollectViewCells();
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261 | mViewCellsStats.Reset();
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262 | EvaluateViewCellsStats();
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263 |
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264 | mTotalAreaValid = false;
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265 | }
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266 |
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267 | void ViewCellsManager::ComputeSampleContributions(VssRay &ray)
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268 | {
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269 | ViewCellContainer viewcells;
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270 |
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271 | CastLineSegment(ray.mOrigin,
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272 | ray.mTermination,
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273 | viewcells);
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274 |
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275 | ray.mPvsContribution = 0;
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276 | ray.mRelativePvsContribution = 0.0f;
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277 |
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278 | ViewCellContainer::const_iterator it = viewcells.begin();
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279 |
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280 | for (; it != viewcells.end(); ++it)
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281 | {
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282 | ViewCell *viewcell = *it;
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283 |
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284 | // if ray not outside of view space
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285 | float contribution;
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286 | bool added =
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287 | viewcell->GetPvs().AddSample(ray.mTerminationObject,
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288 | contribution);
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289 |
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290 | if (added)
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291 | ++ ray.mPvsContribution;
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292 |
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293 | ray.mRelativePvsContribution += contribution;
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294 | }
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295 | }
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296 |
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297 |
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298 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
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299 | VssRayContainer &constructionRays,
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300 | VssRayContainer &savedRays) const
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301 | {
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302 | const int limit = min(mConstructionSamples, (int)sourceRays.size());
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303 |
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304 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
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305 |
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306 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
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307 |
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308 | for (it = sourceRays.begin(); it != it_end; ++ it)
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309 | {
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310 | if (Random(1.0f) < prop)
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311 | constructionRays.push_back(*it);
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312 | else
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313 | savedRays.push_back(*it);
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314 | }
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315 | }
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316 |
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317 |
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318 | float ViewCellsManager::GetAccVcArea()
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319 | {
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320 | // if already computed
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321 | if (mTotalAreaValid)
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322 | return mTotalArea;
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323 |
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324 | mTotalArea = 0;
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325 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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326 |
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327 | for (it = mViewCells.begin(); it != it_end; ++ it)
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328 | {
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329 | //Debug << "area: " << GetArea(*it);
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330 | mTotalArea += GetArea(*it);
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331 | }
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332 |
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333 | mTotalAreaValid = true;
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334 |
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335 | return mTotalArea;
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336 | }
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337 |
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338 | void ViewCellsManager::PrintStatistics(ostream &s) const
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339 | {
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340 | s << mViewCellsStats << endl;
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341 | }
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342 |
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343 |
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344 | /**********************************************************************/
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345 | /* BspViewCellsManager implementation */
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346 | /**********************************************************************/
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347 |
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348 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree,
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349 | int constructionSamples):
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350 | ViewCellsManager(constructionSamples),
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351 | mBspTree(bspTree)
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352 | {
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353 | }
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354 |
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355 |
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356 | bool BspViewCellsManager::ViewCellsConstructed() const
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357 | {
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358 | return mBspTree->GetRoot() != NULL;
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359 | }
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360 |
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361 |
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362 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
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363 | {
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364 | return new BspViewCell(mesh);
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365 | }
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366 |
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367 |
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368 | int BspViewCellsManager::Construct(const ObjectContainer &objects,
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369 | const VssRayContainer &rays,
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370 | AxisAlignedBox3 *sceneBbox)
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371 | {
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372 | // if view cells were already constructed
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373 | if (ViewCellsConstructed())
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374 | return 0;
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375 |
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376 | int sampleContributions = 0;
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377 |
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378 | // construct view cells using the collected samples
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379 | RayContainer constructionRays;
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380 | VssRayContainer savedRays;
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381 |
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382 | const int limit = min(mConstructionSamples, (int)rays.size());
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383 |
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384 | VssRayContainer::const_iterator it, it_end = rays.end();
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385 |
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386 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
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387 |
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388 | for (it = rays.begin(); it != it_end; ++ it)
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389 | {
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390 | if (Random(1.0f) < prop)
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391 | constructionRays.push_back(new Ray(*(*it)));
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392 | else
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393 | savedRays.push_back(*it);
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394 | }
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395 |
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396 | if (mViewCells.empty())
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397 | {
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398 | // no view cells loaded
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399 | mBspTree->Construct(objects, constructionRays);
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400 | // collect final view cells
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401 | mBspTree->CollectViewCells(mViewCells);
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402 | }
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403 | else
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404 | {
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405 | mBspTree->Construct(mViewCells);
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406 | }
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407 |
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408 | // destroy rays created only for construction
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409 | CLEAR_CONTAINER(constructionRays);
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410 |
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411 | Debug << mBspTree->GetStatistics() << endl;
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412 |
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413 | EvaluateViewCellsStats();
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414 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
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415 |
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416 | // recast rest of the rays
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417 | ComputeSampleContributions(savedRays);
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418 |
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419 | return sampleContributions;
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420 | }
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421 |
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422 | void BspViewCellsManager::CollectViewCells()
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423 | {
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424 | mBspTree->CollectViewCells(mViewCells);
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425 | }
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426 |
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427 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
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428 | {
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429 | // compute view cell area as subsititute for probability
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430 | #if 0
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431 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
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432 | #else
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433 | return GetArea(viewCell) / GetAccVcArea();
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434 | #endif
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435 | }
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436 |
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437 |
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438 | float BspViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
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439 | {
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440 | return viewCell->GetPvs().GetSize() * objRendercost;
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441 | }
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442 |
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443 |
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444 | AxisAlignedBox3 BspViewCellsManager::GetSceneBbox() const
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445 | {
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446 | return mBspTree->GetBoundingBox();
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447 | }
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448 |
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449 |
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450 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
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451 | const Vector3 &termination,
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452 | ViewCellContainer &viewcells)
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453 | {
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454 | return mBspTree->CastLineSegment(origin, termination, viewcells);
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455 | }
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456 |
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457 |
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458 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
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459 | const VssRayContainer &rays)
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460 | {
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461 | if (mBspRays.empty())
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462 | ConstructBspRays(rays, mConstructionSamples);
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463 |
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464 | if (!ViewCellsConstructed())
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465 | {
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466 | Debug << "view cells not constructed" << endl;
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467 | return 0;
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468 | }
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469 |
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470 | //-- post processing of bsp view cells
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471 | int vcSize = 0;
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472 | int pvsSize = 0;
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473 |
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474 | EvaluateViewCellsStats();
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475 | Debug << "original view cell partition:\n" << mViewCellsStats << endl;
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476 |
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477 | mRenderer->RenderScene();
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478 | SimulationStatistics ss;
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479 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
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480 |
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481 | Debug << ss << endl;
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482 |
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483 | if (1) // export view cells
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484 | {
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485 | cout << "exporting initial view cells (=leaves) ... ";
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486 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
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487 |
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488 | if (exporter)
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489 | {
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490 | //exporter->SetWireframe();
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491 | exporter->SetFilled();
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492 | exporter->ExportBspViewCellPartition(*mBspTree,
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493 | mViewCellsStats.maxPvs);
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494 |
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495 | if (0)
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496 | {
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497 | Material m;
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498 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
499 | exporter->SetForcedMaterial(m);
|
---|
500 | exporter->SetWireframe();
|
---|
501 |
|
---|
502 | exporter->ExportGeometry(objects);
|
---|
503 | }
|
---|
504 |
|
---|
505 | delete exporter;
|
---|
506 | }
|
---|
507 | cout << "finished" << endl;
|
---|
508 | }
|
---|
509 |
|
---|
510 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
511 |
|
---|
512 | long startTime = GetTime();
|
---|
513 |
|
---|
514 |
|
---|
515 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
516 | // perhaps we could recast the rays or rember the cells traversed inside the
|
---|
517 | // vssray (which would on other hand create some overhead)
|
---|
518 | //-- merge or subdivide view cells
|
---|
519 | int merged = 0;
|
---|
520 |
|
---|
521 | vector<BspIntersection>::const_iterator iit;
|
---|
522 |
|
---|
523 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
524 | {
|
---|
525 | BspRay *ray = mBspRays[i];
|
---|
526 |
|
---|
527 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
528 | // leaves (i.e., the neighbors in the tree)
|
---|
529 | if (ray->intersections.size() < 2)
|
---|
530 | continue;
|
---|
531 |
|
---|
532 | iit = ray->intersections.begin();
|
---|
533 |
|
---|
534 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
535 | ++ iit;
|
---|
536 |
|
---|
537 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
538 | {
|
---|
539 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
540 |
|
---|
541 | if (ShouldMerge(leaf, previousLeaf))
|
---|
542 | {
|
---|
543 | MergeBspLeafViewCells(leaf, previousLeaf);
|
---|
544 |
|
---|
545 | ++ merged;
|
---|
546 | }
|
---|
547 |
|
---|
548 | previousLeaf = leaf;
|
---|
549 | }
|
---|
550 | }
|
---|
551 |
|
---|
552 | //-- stats and visualizations
|
---|
553 | cout << "finished" << endl;
|
---|
554 | cout << "merged " << merged << " view cells in "
|
---|
555 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
556 |
|
---|
557 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
558 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
559 |
|
---|
560 | // reset view cells and stats
|
---|
561 | ResetViewCells();
|
---|
562 |
|
---|
563 | return merged;
|
---|
564 | }
|
---|
565 |
|
---|
566 |
|
---|
567 | BspViewCellsManager::~BspViewCellsManager()
|
---|
568 | {
|
---|
569 | CLEAR_CONTAINER(mBspRays);
|
---|
570 | }
|
---|
571 |
|
---|
572 |
|
---|
573 | int BspViewCellsManager::GetType() const
|
---|
574 | {
|
---|
575 | return BSP;
|
---|
576 | }
|
---|
577 |
|
---|
578 |
|
---|
579 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
580 | const VssRayContainer &sampleRays)
|
---|
581 | {
|
---|
582 | if (!ViewCellsConstructed())
|
---|
583 | return;
|
---|
584 |
|
---|
585 | if (mBspRays.empty())
|
---|
586 | ConstructBspRays(sampleRays, mConstructionSamples);
|
---|
587 |
|
---|
588 | if (1) // export view cells
|
---|
589 | {
|
---|
590 | cout << "exporting view cells after merge ... ";
|
---|
591 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
592 |
|
---|
593 | if (exporter)
|
---|
594 | {
|
---|
595 | exporter->ExportBspViewCellPartition(*mBspTree,
|
---|
596 | mViewCellsStats.maxPvs);
|
---|
597 | delete exporter;
|
---|
598 | }
|
---|
599 |
|
---|
600 | cout << "finished" << endl;
|
---|
601 | }
|
---|
602 |
|
---|
603 | //-- visualization of the BSP splits
|
---|
604 | bool exportSplits = false;
|
---|
605 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
606 |
|
---|
607 | if (exportSplits)
|
---|
608 | {
|
---|
609 | cout << "exporting splits ... ";
|
---|
610 | ExportSplits(objects);
|
---|
611 | cout << "finished" << endl;
|
---|
612 | }
|
---|
613 |
|
---|
614 | ExportBspPvs(objects);
|
---|
615 | }
|
---|
616 |
|
---|
617 |
|
---|
618 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
619 | {
|
---|
620 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
621 | }
|
---|
622 |
|
---|
623 |
|
---|
624 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
625 | {
|
---|
626 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
627 |
|
---|
628 | if (exporter)
|
---|
629 | {
|
---|
630 | Material m;
|
---|
631 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
632 | exporter->SetForcedMaterial(m);
|
---|
633 | exporter->SetWireframe();
|
---|
634 |
|
---|
635 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
636 |
|
---|
637 | // take forced material, else big scenes cannot be viewed
|
---|
638 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
639 | exporter->SetForcedMaterial(m);
|
---|
640 | exporter->SetFilled();
|
---|
641 |
|
---|
642 | exporter->ResetForcedMaterial();
|
---|
643 |
|
---|
644 | // export rays
|
---|
645 | if (0)
|
---|
646 | {
|
---|
647 | VssRayContainer outRays;
|
---|
648 |
|
---|
649 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
650 |
|
---|
651 | for (int i = 0; i < raysSize; ++ i)
|
---|
652 | // only rays piercing geometry
|
---|
653 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
654 |
|
---|
655 | // export rays
|
---|
656 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
657 | }
|
---|
658 |
|
---|
659 | if (0)
|
---|
660 | exporter->ExportGeometry(objects);
|
---|
661 |
|
---|
662 | delete exporter;
|
---|
663 | }
|
---|
664 | }
|
---|
665 |
|
---|
666 |
|
---|
667 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
668 | {
|
---|
669 | bool exportRays = false;
|
---|
670 | bool exportGeometry = false;
|
---|
671 |
|
---|
672 | environment->GetBoolValue("VspBspTree.Visualization.exportRays", exportRays);
|
---|
673 | environment->GetBoolValue("VspBspTree.Visualization.exportGeometry", exportGeometry);
|
---|
674 |
|
---|
675 | const int leafOut = 10;
|
---|
676 |
|
---|
677 | ViewCell::NewMail();
|
---|
678 |
|
---|
679 | //-- some rays for output
|
---|
680 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
681 |
|
---|
682 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
683 | Debug << "\nOutput view cells: " << endl;
|
---|
684 |
|
---|
685 | // sort view cells to get largest view cells
|
---|
686 | #if 0
|
---|
687 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
688 | #endif
|
---|
689 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
690 |
|
---|
691 | for (int i = 0; i < limit; ++ i)
|
---|
692 | {
|
---|
693 | cout << "creating output for view cell " << i << " ... ";
|
---|
694 | VssRayContainer vcRays;
|
---|
695 | Intersectable::NewMail();
|
---|
696 | #if 0
|
---|
697 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
698 | #else
|
---|
699 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[Random((int)mViewCells.size())]);
|
---|
700 | #endif
|
---|
701 | cout << "creating output for view cell " << i << " ... ";
|
---|
702 |
|
---|
703 | #if 0
|
---|
704 | // check whether we can add the current ray to the output rays
|
---|
705 | for (int k = 0; k < raysOut; ++ k)
|
---|
706 | {
|
---|
707 | BspRay *ray = mBspRays[k];
|
---|
708 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
709 | {
|
---|
710 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
711 | if (vc == leaf->GetViewCell())
|
---|
712 | vcRays.push_back(ray->vssRay);
|
---|
713 | }
|
---|
714 | }
|
---|
715 | #endif
|
---|
716 | //bspLeaves[j]->Mail();
|
---|
717 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
718 |
|
---|
719 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
720 |
|
---|
721 | exporter->SetWireframe();
|
---|
722 |
|
---|
723 | Material m;//= RandomMaterial();
|
---|
724 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
725 | exporter->SetForcedMaterial(m);
|
---|
726 |
|
---|
727 | if (vc->GetMesh())
|
---|
728 | exporter->ExportViewCell(vc);
|
---|
729 | else
|
---|
730 | {
|
---|
731 | PolygonContainer vcGeom;
|
---|
732 |
|
---|
733 | //-- export view cell
|
---|
734 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
735 | exporter->ExportPolygons(vcGeom);
|
---|
736 | CLEAR_CONTAINER(vcGeom);
|
---|
737 | }
|
---|
738 |
|
---|
739 |
|
---|
740 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
741 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
742 |
|
---|
743 |
|
---|
744 | // export rays piercing this view cell
|
---|
745 | #if 0
|
---|
746 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
747 | #else
|
---|
748 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
749 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
750 | exporter->ExportRays((*lit)->mVssRays);
|
---|
751 | #endif
|
---|
752 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
753 | exporter->SetForcedMaterial(m);
|
---|
754 |
|
---|
755 | ObjectPvsMap::const_iterator it,
|
---|
756 | it_end = vc->GetPvs().mEntries.end();
|
---|
757 |
|
---|
758 | exporter->SetFilled();
|
---|
759 |
|
---|
760 | // output PVS of view cell
|
---|
761 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
762 | {
|
---|
763 | Intersectable *intersect = (*it).first;
|
---|
764 |
|
---|
765 | if (!intersect->Mailed())
|
---|
766 | {
|
---|
767 | Material m = RandomMaterial();
|
---|
768 | exporter->SetForcedMaterial(m);
|
---|
769 |
|
---|
770 | exporter->ExportIntersectable(intersect);
|
---|
771 | intersect->Mail();
|
---|
772 | }
|
---|
773 | }
|
---|
774 |
|
---|
775 | DEL_PTR(exporter);
|
---|
776 | cout << "finished" << endl;
|
---|
777 | }
|
---|
778 |
|
---|
779 | Debug << endl;
|
---|
780 | }
|
---|
781 |
|
---|
782 |
|
---|
783 | bool BspViewCellsManager::MergeBspLeafViewCells(BspLeaf *front, BspLeaf *back) const
|
---|
784 | {
|
---|
785 | BspViewCell *viewCell =
|
---|
786 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(),
|
---|
787 | *back->GetViewCell()));
|
---|
788 |
|
---|
789 | if (!viewCell)
|
---|
790 | return false;
|
---|
791 |
|
---|
792 | //-- change pointer to view cells of all leaves associated with the previous view cells
|
---|
793 | BspViewCell *fVc = front->GetViewCell();
|
---|
794 | BspViewCell *bVc = back->GetViewCell();
|
---|
795 |
|
---|
796 | vector<BspLeaf *> fLeaves = fVc->mLeaves;
|
---|
797 | vector<BspLeaf *> bLeaves = bVc->mLeaves;
|
---|
798 |
|
---|
799 | vector<BspLeaf *>::const_iterator it;
|
---|
800 |
|
---|
801 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
802 | {
|
---|
803 | (*it)->SetViewCell(viewCell);
|
---|
804 | viewCell->mLeaves.push_back(*it);
|
---|
805 | }
|
---|
806 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
807 | {
|
---|
808 | (*it)->SetViewCell(viewCell);
|
---|
809 | viewCell->mLeaves.push_back(*it);
|
---|
810 | }
|
---|
811 |
|
---|
812 | DEL_PTR(fVc);
|
---|
813 | DEL_PTR(bVc);
|
---|
814 |
|
---|
815 | return true;
|
---|
816 | }
|
---|
817 |
|
---|
818 | bool BspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
819 | {
|
---|
820 | ViewCell *fvc = front->GetViewCell();
|
---|
821 | ViewCell *bvc = back->GetViewCell();
|
---|
822 |
|
---|
823 | if ((fvc == mBspTree->GetRootCell()) || (bvc == mBspTree->GetRootCell()) || (fvc == bvc))
|
---|
824 | return false;
|
---|
825 |
|
---|
826 | int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
827 |
|
---|
828 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
829 | {
|
---|
830 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
831 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
832 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
833 | {
|
---|
834 | return true;
|
---|
835 | }
|
---|
836 | }
|
---|
837 |
|
---|
838 | return false;
|
---|
839 | }
|
---|
840 |
|
---|
841 |
|
---|
842 | void BspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
843 | const int numSamples)
|
---|
844 | {
|
---|
845 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
846 |
|
---|
847 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
848 | {
|
---|
849 | VssRay *vssRay = *it;
|
---|
850 | BspRay *ray = new BspRay(vssRay);
|
---|
851 |
|
---|
852 | ViewCellContainer viewCells;
|
---|
853 |
|
---|
854 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
855 |
|
---|
856 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
857 |
|
---|
858 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
859 | {
|
---|
860 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
861 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
862 | }
|
---|
863 |
|
---|
864 | mBspRays.push_back(ray);
|
---|
865 | }
|
---|
866 | }
|
---|
867 |
|
---|
868 |
|
---|
869 | /**********************************************************************/
|
---|
870 | /* KdViewCellsManager implementation */
|
---|
871 | /**********************************************************************/
|
---|
872 |
|
---|
873 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
874 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
875 | {
|
---|
876 | }
|
---|
877 |
|
---|
878 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
879 | {
|
---|
880 | // compute view cell area / volume as subsititute for probability
|
---|
881 | #if 0
|
---|
882 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
|
---|
883 | #endif
|
---|
884 | #if 1
|
---|
885 | return GetArea(viewCell) / GetAccVcArea();
|
---|
886 | #endif
|
---|
887 | #if 0
|
---|
888 | return GetVolume(viewCell) / GetSceneBbox().GetVolume();
|
---|
889 | #endif
|
---|
890 | }
|
---|
891 |
|
---|
892 |
|
---|
893 | float KdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
894 | {
|
---|
895 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
896 | }
|
---|
897 |
|
---|
898 |
|
---|
899 | AxisAlignedBox3 KdViewCellsManager::GetSceneBbox() const
|
---|
900 | {
|
---|
901 | return mKdTree->GetBox();
|
---|
902 | }
|
---|
903 |
|
---|
904 | void KdViewCellsManager::CollectViewCells()
|
---|
905 | {
|
---|
906 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
907 | }
|
---|
908 |
|
---|
909 | int KdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
910 | const VssRayContainer &rays,
|
---|
911 | AxisAlignedBox3 *sceneBbox)
|
---|
912 | {
|
---|
913 | // if view cells already constructed
|
---|
914 | if (ViewCellsConstructed())
|
---|
915 | return 0;
|
---|
916 |
|
---|
917 | mKdTree->Construct();
|
---|
918 |
|
---|
919 | mTotalAreaValid = false;
|
---|
920 | // create the view cells
|
---|
921 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
922 |
|
---|
923 | // cast rays
|
---|
924 | ComputeSampleContributions(rays);
|
---|
925 |
|
---|
926 | EvaluateViewCellsStats();
|
---|
927 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
928 |
|
---|
929 | return 0;
|
---|
930 | }
|
---|
931 |
|
---|
932 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
933 | {
|
---|
934 | return mKdTree->GetRoot() != NULL;
|
---|
935 | }
|
---|
936 |
|
---|
937 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
938 | const VssRayContainer &rays)
|
---|
939 | {
|
---|
940 | return 0;
|
---|
941 | }
|
---|
942 |
|
---|
943 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
944 | const VssRayContainer &sampleRays)
|
---|
945 | {
|
---|
946 | if (!ViewCellsConstructed())
|
---|
947 | return;
|
---|
948 |
|
---|
949 | // using view cells instead of the kd PVS of objects
|
---|
950 | const bool useViewCells = true;
|
---|
951 | bool exportRays = false;
|
---|
952 |
|
---|
953 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
954 | const int pvsOut = min((int)objects.size(), 10);
|
---|
955 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
956 |
|
---|
957 | if (useViewCells)
|
---|
958 | {
|
---|
959 | const int leafOut = 10;
|
---|
960 |
|
---|
961 | ViewCell::NewMail();
|
---|
962 |
|
---|
963 | //-- some rays for output
|
---|
964 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
965 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
966 |
|
---|
967 | //-- some random view cells and rays for output
|
---|
968 | vector<KdLeaf *> kdLeaves;
|
---|
969 |
|
---|
970 | for (int i = 0; i < leafOut; ++ i)
|
---|
971 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
972 |
|
---|
973 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
974 | {
|
---|
975 | KdLeaf *leaf = kdLeaves[i];
|
---|
976 | RayContainer vcRays;
|
---|
977 |
|
---|
978 | cout << "creating output for view cell " << i << " ... ";
|
---|
979 | #if 0
|
---|
980 | // check whether we can add the current ray to the output rays
|
---|
981 | for (int k = 0; k < raysOut; ++ k)
|
---|
982 | {
|
---|
983 | Ray *ray = sampleRays[k];
|
---|
984 |
|
---|
985 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
986 | {
|
---|
987 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
988 |
|
---|
989 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
990 | {
|
---|
991 | vcRays.push_back(ray);
|
---|
992 | }
|
---|
993 | }
|
---|
994 | }
|
---|
995 | #endif
|
---|
996 | Intersectable::NewMail();
|
---|
997 |
|
---|
998 | ViewCell *vc = leaf->mViewCell;
|
---|
999 |
|
---|
1000 | //bspLeaves[j]->Mail();
|
---|
1001 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
1002 |
|
---|
1003 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1004 | exporter->SetFilled();
|
---|
1005 |
|
---|
1006 | exporter->SetWireframe();
|
---|
1007 | //exporter->SetFilled();
|
---|
1008 |
|
---|
1009 | Material m;//= RandomMaterial();
|
---|
1010 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
1011 | exporter->SetForcedMaterial(m);
|
---|
1012 |
|
---|
1013 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
1014 | exporter->ExportBox(box);
|
---|
1015 |
|
---|
1016 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1017 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1018 |
|
---|
1019 | // export rays piercing this view cell
|
---|
1020 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
1021 |
|
---|
1022 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1023 | exporter->SetForcedMaterial(m);
|
---|
1024 |
|
---|
1025 | // exporter->SetWireframe();
|
---|
1026 | exporter->SetFilled();
|
---|
1027 |
|
---|
1028 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
1029 | // output PVS of view cell
|
---|
1030 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1031 | {
|
---|
1032 | Intersectable *intersect = (*it).first;
|
---|
1033 | if (!intersect->Mailed())
|
---|
1034 | {
|
---|
1035 | exporter->ExportIntersectable(intersect);
|
---|
1036 | intersect->Mail();
|
---|
1037 | }
|
---|
1038 | }
|
---|
1039 |
|
---|
1040 | DEL_PTR(exporter);
|
---|
1041 | cout << "finished" << endl;
|
---|
1042 | }
|
---|
1043 |
|
---|
1044 | DEL_PTR(rays);
|
---|
1045 | }
|
---|
1046 | else // using kd PVS of objects
|
---|
1047 | {
|
---|
1048 | for (int i = 0; i < limit; ++ i)
|
---|
1049 | {
|
---|
1050 | VssRay *ray = sampleRays[i];
|
---|
1051 |
|
---|
1052 | // check whether we can add this to the rays
|
---|
1053 | for (int j = 0; j < pvsOut; j++)
|
---|
1054 | {
|
---|
1055 | if (objects[j] == ray->mTerminationObject)
|
---|
1056 | {
|
---|
1057 | rays[j].push_back(ray);
|
---|
1058 | }
|
---|
1059 | }
|
---|
1060 | }
|
---|
1061 |
|
---|
1062 | if (exportRays)
|
---|
1063 | {
|
---|
1064 | Exporter *exporter = NULL;
|
---|
1065 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
1066 | exporter->SetWireframe();
|
---|
1067 | exporter->ExportKdTree(*mKdTree);
|
---|
1068 |
|
---|
1069 | for (i=0; i < pvsOut; i++)
|
---|
1070 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
1071 |
|
---|
1072 | exporter->SetFilled();
|
---|
1073 |
|
---|
1074 | delete exporter;
|
---|
1075 | }
|
---|
1076 |
|
---|
1077 | for (int k=0; k < pvsOut; k++)
|
---|
1078 | {
|
---|
1079 | Intersectable *object = objects[k];
|
---|
1080 | char s[64];
|
---|
1081 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
1082 |
|
---|
1083 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1084 | exporter->SetWireframe();
|
---|
1085 |
|
---|
1086 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
1087 | Intersectable::NewMail();
|
---|
1088 |
|
---|
1089 | // avoid adding the object to the list
|
---|
1090 | object->Mail();
|
---|
1091 | ObjectContainer visibleObjects;
|
---|
1092 |
|
---|
1093 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
1094 | {
|
---|
1095 | KdNode *node = (*i).first;
|
---|
1096 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
1097 |
|
---|
1098 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
1099 | }
|
---|
1100 |
|
---|
1101 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
1102 | exporter->SetFilled();
|
---|
1103 |
|
---|
1104 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
1105 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
1106 |
|
---|
1107 | Material m;
|
---|
1108 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1109 | exporter->SetForcedMaterial(m);
|
---|
1110 | exporter->ExportIntersectable(object);
|
---|
1111 |
|
---|
1112 | delete exporter;
|
---|
1113 | }
|
---|
1114 | }
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 |
|
---|
1118 | int KdViewCellsManager::GetType() const
|
---|
1119 | {
|
---|
1120 | return ViewCellsManager::KD;
|
---|
1121 | }
|
---|
1122 |
|
---|
1123 |
|
---|
1124 |
|
---|
1125 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
1126 | {
|
---|
1127 | KdNode *node = leaf;
|
---|
1128 |
|
---|
1129 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
1130 | node = node->mParent;
|
---|
1131 | return node;
|
---|
1132 | }
|
---|
1133 |
|
---|
1134 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1135 | const Vector3 &termination,
|
---|
1136 | ViewCellContainer &viewcells)
|
---|
1137 | {
|
---|
1138 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1139 | }
|
---|
1140 |
|
---|
1141 |
|
---|
1142 | /**********************************************************************/
|
---|
1143 | /* VspKdViewCellsManager implementation */
|
---|
1144 | /**********************************************************************/
|
---|
1145 |
|
---|
1146 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree,
|
---|
1147 | int constructionSamples):
|
---|
1148 | ViewCellsManager(constructionSamples),
|
---|
1149 | mVspKdTree(vspKdTree)
|
---|
1150 | {
|
---|
1151 | mVspKdTree->SetViewCellsManager(this);
|
---|
1152 | }
|
---|
1153 |
|
---|
1154 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1155 | {
|
---|
1156 | // volume or area substitutes for view point probability
|
---|
1157 | #if 0
|
---|
1158 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
|
---|
1159 | #else
|
---|
1160 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1161 | #endif
|
---|
1162 | }
|
---|
1163 |
|
---|
1164 |
|
---|
1165 | float VspKdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1166 | {
|
---|
1167 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1168 | }
|
---|
1169 |
|
---|
1170 | void VspKdViewCellsManager::CollectViewCells()
|
---|
1171 | {
|
---|
1172 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
1173 | }
|
---|
1174 |
|
---|
1175 | int VspKdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1176 | const VssRayContainer &rays,
|
---|
1177 | AxisAlignedBox3 *sceneBbox)
|
---|
1178 | {
|
---|
1179 | // if view cells already constructed
|
---|
1180 | if (ViewCellsConstructed())
|
---|
1181 | return 0;
|
---|
1182 |
|
---|
1183 | VssRayContainer constructionRays;
|
---|
1184 | VssRayContainer savedRays;
|
---|
1185 |
|
---|
1186 | GetRaySets(rays, constructionRays, savedRays);
|
---|
1187 |
|
---|
1188 | Debug << "constructing vsp kd tree using "
|
---|
1189 | << (int)constructionRays.size() << " samples" << endl;
|
---|
1190 |
|
---|
1191 | mVspKdTree->Construct(constructionRays, sceneBbox);
|
---|
1192 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
1193 |
|
---|
1194 | ResetViewCells();
|
---|
1195 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1196 |
|
---|
1197 | // finally merge kd leaf building blocks to view cells
|
---|
1198 | const int merged = mVspKdTree->MergeLeaves();
|
---|
1199 |
|
---|
1200 | // recast rest of rays
|
---|
1201 | ComputeSampleContributions(savedRays);
|
---|
1202 |
|
---|
1203 | return merged;
|
---|
1204 | }
|
---|
1205 |
|
---|
1206 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
1207 | {
|
---|
1208 | return mVspKdTree->GetRoot() != NULL;
|
---|
1209 | }
|
---|
1210 |
|
---|
1211 |
|
---|
1212 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1213 | {
|
---|
1214 | return new VspKdViewCell(mesh);
|
---|
1215 | }
|
---|
1216 |
|
---|
1217 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1218 | const VssRayContainer &rays)
|
---|
1219 | {
|
---|
1220 | if (!ViewCellsConstructed())
|
---|
1221 | return 0;
|
---|
1222 |
|
---|
1223 | return 0;
|
---|
1224 | }
|
---|
1225 |
|
---|
1226 | AxisAlignedBox3 VspKdViewCellsManager::GetSceneBbox() const
|
---|
1227 | {
|
---|
1228 | return mVspKdTree->GetBBox(mVspKdTree->GetRoot());
|
---|
1229 | }
|
---|
1230 |
|
---|
1231 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1232 | const VssRayContainer &sampleRays)
|
---|
1233 | {
|
---|
1234 | bool exportRays = false;
|
---|
1235 | bool exportGeometry = false;
|
---|
1236 |
|
---|
1237 | environment->GetBoolValue("VspKdTree.Visualization.exportRays", exportRays);
|
---|
1238 | environment->GetBoolValue("VspKdTree.Visualization.exportGeometry", exportGeometry);
|
---|
1239 |
|
---|
1240 | if (!ViewCellsConstructed())
|
---|
1241 | return;
|
---|
1242 |
|
---|
1243 | //-- export tree leaves
|
---|
1244 | if (1)
|
---|
1245 | {
|
---|
1246 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
1247 | //exporter->SetWireframe();
|
---|
1248 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
1249 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
1250 |
|
---|
1251 | if (1)
|
---|
1252 | exporter->ExportGeometry(objects);
|
---|
1253 |
|
---|
1254 | if (exportRays)
|
---|
1255 | {
|
---|
1256 | int raysSize = 2000;
|
---|
1257 | float prob = raysSize / (float)sampleRays.size();
|
---|
1258 |
|
---|
1259 | exporter->SetWireframe();
|
---|
1260 |
|
---|
1261 | VssRayContainer rays;
|
---|
1262 |
|
---|
1263 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1264 | {
|
---|
1265 | if (RandomValue(0,1) < prob)
|
---|
1266 | rays.push_back(sampleRays[i]);
|
---|
1267 | }
|
---|
1268 |
|
---|
1269 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1270 | }
|
---|
1271 |
|
---|
1272 | delete exporter;
|
---|
1273 | }
|
---|
1274 |
|
---|
1275 | //-- export single leaves
|
---|
1276 | if (1)
|
---|
1277 | {
|
---|
1278 | vector<VspKdLeaf *> leafContainer;
|
---|
1279 | mVspKdTree->CollectLeaves(leafContainer);
|
---|
1280 |
|
---|
1281 | for (int i = 0; i < 10; ++ i)
|
---|
1282 | {
|
---|
1283 | char s[64];
|
---|
1284 | sprintf(s, "vsp_leaves%04d.x3d", i);
|
---|
1285 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1286 |
|
---|
1287 | // export geometry
|
---|
1288 | VspKdLeaf *leaf = leafContainer[(int)RandomValue(0.0, (Real)((int)leafContainer.size() - 1))];
|
---|
1289 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
1290 |
|
---|
1291 | Material m;
|
---|
1292 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1293 | exporter->SetForcedMaterial(m);
|
---|
1294 | exporter->SetWireframe();
|
---|
1295 | exporter->ExportBox(box);
|
---|
1296 |
|
---|
1297 | //-- export stored rays
|
---|
1298 | VssRayContainer vssRays;
|
---|
1299 | leaf->GetRays(vssRays);
|
---|
1300 |
|
---|
1301 | VssRayContainer rays;
|
---|
1302 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
1303 |
|
---|
1304 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
1305 | rays.push_back(*it);
|
---|
1306 |
|
---|
1307 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1308 |
|
---|
1309 | //-- export stored PVS
|
---|
1310 | ObjectContainer pvsObj;
|
---|
1311 | leaf->ExtractPvs(pvsObj);
|
---|
1312 |
|
---|
1313 | exporter->ExportGeometry(pvsObj);
|
---|
1314 |
|
---|
1315 | delete exporter;
|
---|
1316 | }
|
---|
1317 | }
|
---|
1318 |
|
---|
1319 | //-- export final view cells
|
---|
1320 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
1321 | exporter->SetWireframe();
|
---|
1322 | //exporter->ExportVspKdTreeViewCells(*mVspKdTree, vcStats.maxPvs);
|
---|
1323 | exporter->ExportVspKdTreeViewCells(*mVspKdTree);
|
---|
1324 |
|
---|
1325 | if (1)
|
---|
1326 | {
|
---|
1327 | exporter->SetFilled();
|
---|
1328 | exporter->ExportGeometry(objects);
|
---|
1329 | }
|
---|
1330 |
|
---|
1331 | if (exportRays)
|
---|
1332 | {
|
---|
1333 | int raysSize = 2000;
|
---|
1334 | float prob = raysSize / (float)sampleRays.size();
|
---|
1335 |
|
---|
1336 | exporter->SetWireframe();
|
---|
1337 |
|
---|
1338 | VssRayContainer rays;
|
---|
1339 |
|
---|
1340 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1341 | {
|
---|
1342 | if (RandomValue(0,1) < prob)
|
---|
1343 | rays.push_back(sampleRays[i]);
|
---|
1344 | }
|
---|
1345 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1346 | }
|
---|
1347 |
|
---|
1348 | delete exporter;
|
---|
1349 | }
|
---|
1350 |
|
---|
1351 | int VspKdViewCellsManager::GetType() const
|
---|
1352 | {
|
---|
1353 | return VSP_KD;
|
---|
1354 | }
|
---|
1355 |
|
---|
1356 |
|
---|
1357 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1358 | const Vector3 &termination,
|
---|
1359 | ViewCellContainer &viewcells)
|
---|
1360 | {
|
---|
1361 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1362 | }
|
---|
1363 |
|
---|
1364 |
|
---|
1365 |
|
---|
1366 | /**********************************************************************/
|
---|
1367 | /* VspBspViewCellsManager implementation */
|
---|
1368 | /**********************************************************************/
|
---|
1369 |
|
---|
1370 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree,
|
---|
1371 | int constructionSamples):
|
---|
1372 | ViewCellsManager(constructionSamples),
|
---|
1373 | mVspBspTree(vspBspTree)
|
---|
1374 | {
|
---|
1375 | mVspBspTree->SetViewCellsManager(this);
|
---|
1376 | }
|
---|
1377 |
|
---|
1378 |
|
---|
1379 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
1380 | {
|
---|
1381 | CLEAR_CONTAINER(mBspRays);
|
---|
1382 | }
|
---|
1383 |
|
---|
1384 |
|
---|
1385 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1386 | {
|
---|
1387 | #if 0
|
---|
1388 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
|
---|
1389 | #else
|
---|
1390 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1391 | #endif
|
---|
1392 | }
|
---|
1393 |
|
---|
1394 |
|
---|
1395 | void VspBspViewCellsManager::CollectViewCells()
|
---|
1396 | {
|
---|
1397 | mVspBspTree->CollectViewCells(mViewCells);
|
---|
1398 | }
|
---|
1399 |
|
---|
1400 |
|
---|
1401 | float VspBspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
1402 | float objRendercost) const
|
---|
1403 | {
|
---|
1404 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1405 | }
|
---|
1406 |
|
---|
1407 |
|
---|
1408 | AxisAlignedBox3 VspBspViewCellsManager::GetSceneBbox() const
|
---|
1409 | {
|
---|
1410 | return mVspBspTree->GetBoundingBox();
|
---|
1411 | }
|
---|
1412 |
|
---|
1413 |
|
---|
1414 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
1415 | {
|
---|
1416 | return mVspBspTree->GetRoot() != NULL;
|
---|
1417 | }
|
---|
1418 |
|
---|
1419 |
|
---|
1420 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1421 | {
|
---|
1422 | return new BspViewCell(mesh);
|
---|
1423 | }
|
---|
1424 |
|
---|
1425 | int VspBspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1426 | const VssRayContainer &rays,
|
---|
1427 | AxisAlignedBox3 *sceneBbox)
|
---|
1428 | {
|
---|
1429 | // if view cells were already constructed
|
---|
1430 | if (ViewCellsConstructed())
|
---|
1431 | return 0;
|
---|
1432 |
|
---|
1433 | int sampleContributions = 0;
|
---|
1434 |
|
---|
1435 | VssRayContainer constructionRays;
|
---|
1436 | VssRayContainer savedRays;
|
---|
1437 |
|
---|
1438 | GetRaySets(rays, constructionRays, savedRays);
|
---|
1439 |
|
---|
1440 | mVspBspTree->Construct(constructionRays);
|
---|
1441 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
1442 |
|
---|
1443 | ResetViewCells();
|
---|
1444 |
|
---|
1445 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1446 | // recast rest of rays
|
---|
1447 | ComputeSampleContributions(savedRays);
|
---|
1448 |
|
---|
1449 | return sampleContributions;
|
---|
1450 | }
|
---|
1451 |
|
---|
1452 |
|
---|
1453 | void VspBspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
1454 | const int numSamples)
|
---|
1455 | {
|
---|
1456 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
1457 |
|
---|
1458 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
1459 | {
|
---|
1460 | VssRay *vssRay = *it;
|
---|
1461 | BspRay *ray = new BspRay(vssRay);
|
---|
1462 |
|
---|
1463 | ViewCellContainer viewCells;
|
---|
1464 |
|
---|
1465 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
1466 |
|
---|
1467 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
1468 |
|
---|
1469 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
1470 | {
|
---|
1471 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
1472 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
1473 | }
|
---|
1474 |
|
---|
1475 | mBspRays.push_back(ray);
|
---|
1476 | }
|
---|
1477 | }
|
---|
1478 |
|
---|
1479 |
|
---|
1480 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1481 | const VssRayContainer &rays)
|
---|
1482 | {
|
---|
1483 | if (!ViewCellsConstructed())
|
---|
1484 | {
|
---|
1485 | Debug << "view cells not constructed" << endl;
|
---|
1486 | return 0;
|
---|
1487 | }
|
---|
1488 |
|
---|
1489 | if (mBspRays.empty())
|
---|
1490 | ConstructBspRays(rays, mConstructionSamples);
|
---|
1491 |
|
---|
1492 | //-- post processing of bsp view cells
|
---|
1493 | int vcSize = 0;
|
---|
1494 | int pvsSize = 0;
|
---|
1495 |
|
---|
1496 | EvaluateViewCellsStats();
|
---|
1497 | Debug << "original view cell partition:\n" << mViewCellsStats << endl;
|
---|
1498 |
|
---|
1499 | mRenderer->RenderScene();
|
---|
1500 | SimulationStatistics ss;
|
---|
1501 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
1502 | Debug << ss << endl;
|
---|
1503 |
|
---|
1504 | if (1) // export view cells
|
---|
1505 | {
|
---|
1506 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1507 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1508 |
|
---|
1509 | if (exporter)
|
---|
1510 | {
|
---|
1511 | //exporter->SetWireframe();
|
---|
1512 | exporter->SetFilled();
|
---|
1513 | //exporter->ExportBspViewCellPartition(*mVspBspTree, mViewCellsStats.maxPvs);
|
---|
1514 | exporter->ExportBspViewCellPartition(*mVspBspTree);
|
---|
1515 |
|
---|
1516 | if (0)
|
---|
1517 | {
|
---|
1518 | Material m;
|
---|
1519 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1520 | exporter->SetForcedMaterial(m);
|
---|
1521 | exporter->SetWireframe();
|
---|
1522 |
|
---|
1523 | exporter->ExportGeometry(objects);
|
---|
1524 | }
|
---|
1525 |
|
---|
1526 | delete exporter;
|
---|
1527 | }
|
---|
1528 | cout << "finished" << endl;
|
---|
1529 | }
|
---|
1530 |
|
---|
1531 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
1532 |
|
---|
1533 | long startTime = GetTime();
|
---|
1534 |
|
---|
1535 |
|
---|
1536 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
1537 | // perhaps we could recast the rays or rember the cells traversed inside the
|
---|
1538 | // vssray (which would on other hand create some overhead)
|
---|
1539 | //-- merge or subdivide view cells
|
---|
1540 | int merged = 0;
|
---|
1541 |
|
---|
1542 | vector<BspIntersection>::const_iterator iit;
|
---|
1543 |
|
---|
1544 | if (0)
|
---|
1545 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
1546 | {
|
---|
1547 | BspRay *ray = mBspRays[i];
|
---|
1548 |
|
---|
1549 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
1550 | // leaves (i.e., the neighbors in the tree)
|
---|
1551 | if (ray->intersections.size() < 2)
|
---|
1552 | continue;
|
---|
1553 |
|
---|
1554 | iit = ray->intersections.begin();
|
---|
1555 |
|
---|
1556 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
1557 | ++ iit;
|
---|
1558 |
|
---|
1559 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
1560 | {
|
---|
1561 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
1562 |
|
---|
1563 | if (ShouldMerge(leaf, previousLeaf))
|
---|
1564 | {
|
---|
1565 | MergeVspBspLeafViewCells(leaf, previousLeaf);
|
---|
1566 |
|
---|
1567 | ++ merged;
|
---|
1568 | }
|
---|
1569 |
|
---|
1570 | previousLeaf = leaf;
|
---|
1571 | }
|
---|
1572 | }
|
---|
1573 | else
|
---|
1574 | {
|
---|
1575 | merged = mVspBspTree->MergeLeaves();
|
---|
1576 | }
|
---|
1577 |
|
---|
1578 | //-- stats and visualizations
|
---|
1579 | cout << "finished" << endl;
|
---|
1580 | cout << "merged " << merged << " view cells in "
|
---|
1581 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1582 |
|
---|
1583 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
1584 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
1585 |
|
---|
1586 | // reset view cells and stats
|
---|
1587 | ResetViewCells();
|
---|
1588 |
|
---|
1589 | return merged;
|
---|
1590 | }
|
---|
1591 |
|
---|
1592 | int VspBspViewCellsManager::GetType() const
|
---|
1593 | {
|
---|
1594 | return VSP_BSP;
|
---|
1595 | }
|
---|
1596 |
|
---|
1597 |
|
---|
1598 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1599 | const VssRayContainer &sampleRays)
|
---|
1600 | {
|
---|
1601 | if (!ViewCellsConstructed())
|
---|
1602 | return;
|
---|
1603 |
|
---|
1604 | if (mBspRays.empty())
|
---|
1605 | ConstructBspRays(sampleRays, mConstructionSamples);
|
---|
1606 |
|
---|
1607 | if (1) // export view cells
|
---|
1608 | {
|
---|
1609 | cout << "exporting view cells after post process ... ";
|
---|
1610 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
1611 |
|
---|
1612 | if (exporter)
|
---|
1613 | {
|
---|
1614 | //exporter->ExportBspViewCellPartition(*mVspBspTree, mViewCellsStats.maxPvs);
|
---|
1615 | exporter->ExportBspViewCellPartition(*mVspBspTree);
|
---|
1616 | delete exporter;
|
---|
1617 | }
|
---|
1618 |
|
---|
1619 | cout << "finished" << endl;
|
---|
1620 | }
|
---|
1621 |
|
---|
1622 | //-- visualization of the BSP splits
|
---|
1623 | bool exportSplits = false;
|
---|
1624 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
1625 |
|
---|
1626 | if (exportSplits)
|
---|
1627 | {
|
---|
1628 | cout << "exporting splits ... ";
|
---|
1629 | ExportSplits(objects);
|
---|
1630 | cout << "finished" << endl;
|
---|
1631 | }
|
---|
1632 |
|
---|
1633 | ExportBspPvs(objects);
|
---|
1634 | }
|
---|
1635 |
|
---|
1636 |
|
---|
1637 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
1638 | {
|
---|
1639 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
1640 |
|
---|
1641 | if (exporter)
|
---|
1642 | {
|
---|
1643 | Material m;
|
---|
1644 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1645 | exporter->SetForcedMaterial(m);
|
---|
1646 | exporter->SetWireframe();
|
---|
1647 |
|
---|
1648 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
1649 |
|
---|
1650 | // take forced material, else big scenes cannot be viewed
|
---|
1651 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1652 | exporter->SetForcedMaterial(m);
|
---|
1653 | exporter->SetFilled();
|
---|
1654 |
|
---|
1655 | exporter->ResetForcedMaterial();
|
---|
1656 |
|
---|
1657 | // export rays
|
---|
1658 | if (0)
|
---|
1659 | {
|
---|
1660 | VssRayContainer outRays;
|
---|
1661 |
|
---|
1662 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1663 |
|
---|
1664 | for (int i = 0; i < raysSize; ++ i)
|
---|
1665 | // only rays piercing geometry
|
---|
1666 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
1667 |
|
---|
1668 | // export rays
|
---|
1669 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
1670 | }
|
---|
1671 |
|
---|
1672 | if (0)
|
---|
1673 | exporter->ExportGeometry(objects);
|
---|
1674 |
|
---|
1675 | delete exporter;
|
---|
1676 | }
|
---|
1677 | }
|
---|
1678 |
|
---|
1679 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
1680 | {
|
---|
1681 | bool exportRays = false;
|
---|
1682 | bool exportGeometry = false;
|
---|
1683 |
|
---|
1684 | environment->GetBoolValue("VspBspTree.Visualization.exportRays", exportRays);
|
---|
1685 | environment->GetBoolValue("VspBspTree.Visualization.exportGeometry", exportGeometry);
|
---|
1686 |
|
---|
1687 | const int leafOut = 10;
|
---|
1688 |
|
---|
1689 | ViewCell::NewMail();
|
---|
1690 |
|
---|
1691 | //-- some rays for output
|
---|
1692 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1693 |
|
---|
1694 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
1695 | Debug << "\nOutput view cells: " << endl;
|
---|
1696 |
|
---|
1697 | // sort view cells to get largest view cells
|
---|
1698 | #if 0
|
---|
1699 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
1700 | #endif
|
---|
1701 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
1702 |
|
---|
1703 | for (int i = 0; i < limit; ++ i)
|
---|
1704 | {
|
---|
1705 | cout << "creating output for view cell " << i << " ... ";
|
---|
1706 | VssRayContainer vcRays;
|
---|
1707 | Intersectable::NewMail();
|
---|
1708 | #if 0
|
---|
1709 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
1710 | #else
|
---|
1711 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[Random((int)mViewCells.size())]);
|
---|
1712 | #endif
|
---|
1713 | cout << "creating output for view cell " << i << " ... ";
|
---|
1714 |
|
---|
1715 | #if 0
|
---|
1716 | // check whether we can add the current ray to the output rays
|
---|
1717 | for (int k = 0; k < raysOut; ++ k)
|
---|
1718 | {
|
---|
1719 | BspRay *ray = mBspRays[k];
|
---|
1720 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
1721 | {
|
---|
1722 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
1723 | if (vc == leaf->GetViewCell())
|
---|
1724 | vcRays.push_back(ray->vssRay);
|
---|
1725 | }
|
---|
1726 | }
|
---|
1727 | #endif
|
---|
1728 | //bspLeaves[j]->Mail();
|
---|
1729 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1730 |
|
---|
1731 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1732 |
|
---|
1733 | exporter->SetWireframe();
|
---|
1734 |
|
---|
1735 | Material m;//= RandomMaterial();
|
---|
1736 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1737 | exporter->SetForcedMaterial(m);
|
---|
1738 |
|
---|
1739 | if (vc->GetMesh())
|
---|
1740 | exporter->ExportViewCell(vc);
|
---|
1741 | else
|
---|
1742 | {
|
---|
1743 | PolygonContainer vcGeom;
|
---|
1744 | // export view cell
|
---|
1745 | mVspBspTree->ConstructGeometry(vc, vcGeom);
|
---|
1746 | exporter->ExportPolygons(vcGeom);
|
---|
1747 | CLEAR_CONTAINER(vcGeom);
|
---|
1748 | }
|
---|
1749 |
|
---|
1750 |
|
---|
1751 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1752 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1753 |
|
---|
1754 |
|
---|
1755 | // export rays piercing this view cell
|
---|
1756 | #if 0
|
---|
1757 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
1758 | #else
|
---|
1759 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
1760 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
1761 | exporter->ExportRays((*lit)->mVssRays);
|
---|
1762 | #endif
|
---|
1763 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1764 | exporter->SetForcedMaterial(m);
|
---|
1765 |
|
---|
1766 | ObjectPvsMap::const_iterator it,
|
---|
1767 | it_end = vc->GetPvs().mEntries.end();
|
---|
1768 |
|
---|
1769 | exporter->SetFilled();
|
---|
1770 |
|
---|
1771 | // output PVS of view cell
|
---|
1772 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1773 | {
|
---|
1774 | Intersectable *intersect = (*it).first;
|
---|
1775 |
|
---|
1776 | if (!intersect->Mailed())
|
---|
1777 | {
|
---|
1778 | Material m = RandomMaterial();
|
---|
1779 | exporter->SetForcedMaterial(m);
|
---|
1780 |
|
---|
1781 | exporter->ExportIntersectable(intersect);
|
---|
1782 | intersect->Mail();
|
---|
1783 | }
|
---|
1784 | }
|
---|
1785 |
|
---|
1786 | DEL_PTR(exporter);
|
---|
1787 | cout << "finished" << endl;
|
---|
1788 | }
|
---|
1789 |
|
---|
1790 | Debug << endl;
|
---|
1791 | }
|
---|
1792 |
|
---|
1793 |
|
---|
1794 | bool VspBspViewCellsManager::MergeVspBspLeafViewCells(BspLeaf *front,
|
---|
1795 | BspLeaf *back) const
|
---|
1796 | {
|
---|
1797 | BspViewCell *viewCell =
|
---|
1798 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(),
|
---|
1799 | *back->GetViewCell()));
|
---|
1800 |
|
---|
1801 | if (!viewCell)
|
---|
1802 | return false;
|
---|
1803 |
|
---|
1804 | // change view cells of all leaves
|
---|
1805 | // associated with the previous view cells
|
---|
1806 | BspViewCell *fVc = front->GetViewCell();
|
---|
1807 | BspViewCell *bVc = back->GetViewCell();
|
---|
1808 |
|
---|
1809 | vector<BspLeaf *> fLeaves = fVc->mLeaves;
|
---|
1810 | vector<BspLeaf *> bLeaves = bVc->mLeaves;
|
---|
1811 |
|
---|
1812 | vector<BspLeaf *>::const_iterator it;
|
---|
1813 |
|
---|
1814 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
1815 | {
|
---|
1816 | (*it)->SetViewCell(viewCell);
|
---|
1817 | viewCell->mLeaves.push_back(*it);
|
---|
1818 | }
|
---|
1819 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
1820 | {
|
---|
1821 | (*it)->SetViewCell(viewCell);
|
---|
1822 | viewCell->mLeaves.push_back(*it);
|
---|
1823 | }
|
---|
1824 |
|
---|
1825 | DEL_PTR(fVc);
|
---|
1826 | DEL_PTR(bVc);
|
---|
1827 |
|
---|
1828 | return true;
|
---|
1829 | }
|
---|
1830 |
|
---|
1831 | bool VspBspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
1832 | {
|
---|
1833 | ViewCell *fvc = front->GetViewCell();
|
---|
1834 | ViewCell *bvc = back->GetViewCell();
|
---|
1835 |
|
---|
1836 | if ((fvc == mVspBspTree->GetRootCell()) ||
|
---|
1837 | (bvc == mVspBspTree->GetRootCell()) ||
|
---|
1838 | (fvc == bvc))
|
---|
1839 | return false;
|
---|
1840 |
|
---|
1841 | const int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
1842 |
|
---|
1843 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
1844 | {
|
---|
1845 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
1846 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
1847 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
1848 | {
|
---|
1849 | return true;
|
---|
1850 | }
|
---|
1851 | }
|
---|
1852 |
|
---|
1853 | return false;
|
---|
1854 | }
|
---|
1855 |
|
---|
1856 |
|
---|
1857 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1858 | const Vector3 &termination,
|
---|
1859 | ViewCellContainer &viewcells)
|
---|
1860 | {
|
---|
1861 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
1862 | }
|
---|