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 | mSceneBox.Initialize();
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24 | ParseEnvironment();
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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 | mRenderer(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 | mSceneBox.Initialize();
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34 | ParseEnvironment();
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35 | }
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36 |
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37 | void ViewCellsManager::ParseEnvironment()
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38 | {
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39 | // post processing stuff
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40 | environment->GetIntValue("ViewCells.PostProcess.minPvsDif", mMinPvsDif);
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41 | environment->GetIntValue("ViewCells.PostProcess.minPvs", mMinPvs);
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42 | environment->GetIntValue("ViewCells.PostProcess.maxPvs", mMaxPvs);
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43 |
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44 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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45 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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46 |
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47 | char buf[50];
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48 |
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49 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
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50 |
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51 | if (strcmp(buf, "PVS") == 0)
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52 | mColorCode = 1;
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53 | else if (strcmp(buf, "MergedLeaves") == 0)
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54 | mColorCode = 2;
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55 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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56 | mColorCode = 3;
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57 | else
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58 | mColorCode = 0;
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59 |
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60 | Debug << "colorCode: " << mColorCode << endl;
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61 | }
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62 |
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63 |
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64 | ViewCellsManager::~ViewCellsManager()
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65 | {
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66 | DEL_PTR(mRenderer);
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67 |
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68 | CLEAR_CONTAINER(mViewCells);
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69 | }
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70 |
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71 |
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72 | bool ViewCellsManager::LoadViewCells(const string filename)
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73 | {
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74 | X3dParser parser;
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75 |
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76 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
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77 |
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78 | bool success = parser.ParseFile(filename, *this);
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79 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
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80 |
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81 | return success;
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82 | }
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83 |
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84 |
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85 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
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86 | {
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87 | viewPoint = mSceneBox.GetRandomPoint();
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88 |
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89 | return true;
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90 | }
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91 |
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92 |
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93 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
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94 | {
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95 | return mSceneBox.IsInside(viewPoint);
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96 | }
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97 |
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98 | void ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays)
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99 | {
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100 | // view cells not yet constructed
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101 | if (!ViewCellsConstructed())
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102 | return;
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103 |
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104 | VssRayContainer::const_iterator it, it_end = rays.end();
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105 |
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106 | for (it = rays.begin(); it != it_end; ++ it)
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107 | {
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108 | ComputeSampleContributions(*(*it));
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109 | }
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110 | }
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111 |
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112 |
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113 | void ViewCellsManager::EvaluateViewCellsStats()
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114 | {
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115 | mViewCellsStats.Reset();
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116 |
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117 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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118 |
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119 | for (it = mViewCells.begin(); it != it_end; ++ it)
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120 | {
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121 | (*it)->UpdateViewCellsStats(mViewCellsStats);
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122 | }
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123 | }
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124 |
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125 |
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126 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
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127 | {
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128 | mViewCells.push_back(viewCell);
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129 | }
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130 |
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131 |
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132 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
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133 | {
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134 | return viewCell->GetArea();
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135 | }
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136 |
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137 |
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138 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
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139 | {
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140 | return viewCell->GetVolume();
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141 | }
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142 |
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143 |
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144 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
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145 | ViewCellContainer &viewCells,
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146 | const int maxViewCells) const
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147 | {
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148 | // maximal max viewcells
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149 | int limit = maxViewCells > 0 ?
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150 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
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151 |
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152 | for (int i = 0; i < limit; ++ i)
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153 | {
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154 | Intersectable *object = objects[i];
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155 |
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156 | // extract the mesh instances
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157 | if (object->Type() == Intersectable::MESH_INSTANCE)
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158 | {
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159 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
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160 |
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161 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
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162 | viewCells.push_back(viewCell);
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163 | }
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164 | //TODO: transformed meshes
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165 | }
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166 | }
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167 |
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168 |
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169 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
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170 | const float height) const
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171 | {
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172 | // one mesh per view cell
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173 | Mesh *mesh = new Mesh();
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174 |
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175 | //-- construct prism
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176 |
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177 | // bottom
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178 | mesh->mFaces.push_back(new Face(2,1,0));
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179 | // top
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180 | mesh->mFaces.push_back(new Face(3,4,5));
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181 | // sides
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182 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
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183 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
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184 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
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185 |
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186 | //--- extrude new vertices for top of prism
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187 | Vector3 triNorm = baseTri.GetNormal();
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188 |
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189 | Triangle3 topTri;
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190 |
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191 | // add base vertices and calculate top vertices
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192 | for (int i = 0; i < 3; ++ i)
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193 | mesh->mVertices.push_back(baseTri.mVertices[i]);
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194 |
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195 | // add top vertices
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196 | for (int i = 0; i < 3; ++ i)
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197 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
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198 |
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199 | mesh->Preprocess();
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200 |
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201 | return GenerateViewCell(mesh);
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202 | }
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203 |
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204 |
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205 | ViewCell *ViewCellsManager::MergeViewCells(ViewCell &front, ViewCell &back) const
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206 | {
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207 | // generate merged view cell
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208 | ViewCell *vc = GenerateViewCell();
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209 |
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210 | // merge pvs
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211 | vc->GetPvs().Merge(front.GetPvs(), back.GetPvs());
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212 |
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213 | //-- merge ray sets
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214 | stable_sort(front.mPiercingRays.begin(), front.mPiercingRays.end());
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215 | stable_sort(back.mPiercingRays.begin(), back.mPiercingRays.end());
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216 |
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217 | std::merge(front.mPiercingRays.begin(), front.mPiercingRays.end(),
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218 | back.mPiercingRays.begin(), back.mPiercingRays.end(),
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219 | vc->mPiercingRays.begin());
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220 |
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221 | return vc;
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222 | }
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223 |
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224 |
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225 | void ViewCellsManager::SetRenderer(Renderer *renderer)
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226 | {
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227 | mRenderer = renderer;
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228 | }
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229 |
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230 |
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231 | ViewCell *ViewCellsManager::GenerateViewCell(Mesh *mesh) const
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232 | {
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233 | return new ViewCell(mesh);
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234 | }
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235 |
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236 |
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237 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
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238 | {
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239 | mVisualizationSamples = visSamples;
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240 | }
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241 |
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242 |
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243 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
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244 | {
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245 | mConstructionSamples = constructionSamples;
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246 | }
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247 |
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248 |
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249 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
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250 | {
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251 | mPostProcessSamples = postProcessSamples;
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252 | }
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253 |
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254 |
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255 | int ViewCellsManager::GetVisualizationSamples() const
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256 | {
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257 | return mVisualizationSamples;
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258 | }
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259 |
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260 |
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261 | int ViewCellsManager::GetConstructionSamples() const
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262 | {
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263 | return mConstructionSamples;
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264 | }
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265 |
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266 |
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267 | int ViewCellsManager::GetPostProcessSamples() const
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268 | {
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269 | return mPostProcessSamples;
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270 | }
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271 |
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272 |
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273 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
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274 | {
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275 | ViewCellContainer::const_iterator it = mViewCells.begin();
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276 | stat.viewcells = 0;
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277 | stat.minPvs = 100000000;
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278 | stat.maxPvs = 0;
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279 | stat.avgPvs = 0.0f;
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280 |
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281 | for (; it != mViewCells.end(); ++it) {
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282 | ViewCell *viewcell = *it;
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283 | int pvsSize = viewcell->GetPvs().GetSize();
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284 | if ( pvsSize < stat.minPvs)
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285 | stat.minPvs = pvsSize;
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286 | if (pvsSize > stat.maxPvs)
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287 | stat.maxPvs = pvsSize;
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288 | stat.avgPvs += pvsSize;
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289 | stat.viewcells++;
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290 | }
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291 | if (stat.viewcells)
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292 | stat.avgPvs/=stat.viewcells;
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293 | }
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294 |
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295 |
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296 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
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297 | {
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298 | s<<"############# Viewcell PVS STAT ##################\n";
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299 | PvsStatistics pvsStat;
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300 | GetPvsStatistics(pvsStat);
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301 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
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302 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
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303 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
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304 | }
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305 |
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306 |
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307 | ViewCellContainer &ViewCellsManager::GetViewCells()
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308 | {
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309 | return mViewCells;
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310 | }
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311 |
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312 |
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313 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
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314 | {
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315 | mSceneBox = box;
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316 | }
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317 |
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318 |
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319 | void ViewCellsManager::ResetViewCells()
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320 | {
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321 | mViewCells.clear();
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322 |
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323 | CollectViewCells();
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324 | mViewCellsStats.Reset();
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325 | EvaluateViewCellsStats();
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326 |
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327 | mTotalAreaValid = false;
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328 | }
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329 |
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330 |
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331 | void ViewCellsManager::ComputeSampleContributions(VssRay &ray)
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332 | {
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333 |
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334 |
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335 |
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336 | ViewCellContainer viewcells;
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337 |
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338 | ray.mPvsContribution = 0;
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339 | ray.mRelativePvsContribution = 0.0f;
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340 |
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341 | // matt TODO: remove this!!
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342 | Ray hray(ray);
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343 | float tmin = 0, tmax = 1.0;
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344 |
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345 | //hray.Init(ray.GetOrigin(), ray.GetDir(), Ray::LINE_SEGMENT);
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346 | if (!GetSceneBbox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
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347 | return;
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348 |
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349 | Vector3 origin = hray.Extrap(tmin);
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350 | Vector3 termination = hray.Extrap(tmax);
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351 |
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352 | CastLineSegment(origin,
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353 | termination,
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354 | viewcells);
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355 |
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356 | // copy viewcells memory efficiently
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357 | const bool storeViewcells = false;
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358 | if (storeViewcells) {
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359 | ray.mViewCells.reserve(viewcells.size());
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360 | ray.mViewCells = viewcells;
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361 | }
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362 |
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363 | ViewCellContainer::const_iterator it = viewcells.begin();
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364 |
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365 | bool addInPlace = false;
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366 |
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367 | if (addInPlace) {
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368 | for (; it != viewcells.end(); ++it) {
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369 | ViewCell *viewcell = *it;
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370 |
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371 | // if ray not outside of view space
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372 | float contribution;
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373 | bool added =
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374 | viewcell->GetPvs().AddSample(ray.mTerminationObject,
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375 | contribution
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376 | );
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377 | if (added)
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378 | ray.mPvsContribution++;
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379 |
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380 | ray.mRelativePvsContribution += contribution;
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381 | }
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382 | } else {
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383 | for (; it != viewcells.end(); ++it) {
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384 | ViewCell *viewcell = *it;
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385 | // if ray not outside of view space
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386 | float contribution;
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387 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
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388 | contribution
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389 | ))
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390 | ray.mPvsContribution++;
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391 |
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392 | ray.mRelativePvsContribution += contribution;
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393 | }
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394 |
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395 | for (it = viewcells.begin(); it != viewcells.end(); ++it) {
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396 | ViewCell *viewcell = *it;
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397 | // if ray not outside of view space
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398 | viewcell->GetPvs().AddSample(ray.mTerminationObject);
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399 | }
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400 | }
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401 | }
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402 |
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403 |
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404 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
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405 | const int maxSize,
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406 | VssRayContainer &usedRays,
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407 | VssRayContainer *savedRays) const
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408 | {
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409 | const int limit = min(maxSize, (int)sourceRays.size());
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410 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
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411 |
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412 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
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413 | for (it = sourceRays.begin(); it != it_end; ++ it)
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414 | {
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415 | if (Random(1.0f) < prop)
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416 | usedRays.push_back(*it);
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417 | else if (savedRays)
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418 | savedRays->push_back(*it);
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419 | }
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420 | }
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421 |
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422 |
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423 | float ViewCellsManager::GetAccVcArea()
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424 | {
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425 | // if already computed
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426 | if (mTotalAreaValid)
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427 | return mTotalArea;
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428 |
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429 | mTotalArea = 0;
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430 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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431 |
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432 | for (it = mViewCells.begin(); it != it_end; ++ it)
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433 | {
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434 | //Debug << "area: " << GetArea(*it);
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435 | mTotalArea += GetArea(*it);
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436 | }
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437 |
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438 | mTotalAreaValid = true;
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439 |
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440 | return mTotalArea;
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441 | }
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442 |
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443 |
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444 | void ViewCellsManager::PrintStatistics(ostream &s) const
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445 | {
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446 | s << mViewCellsStats << endl;
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447 | }
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448 |
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449 |
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450 | void ViewCellsManager::ExportViewCells(Exporter *exporter) const
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451 | {
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452 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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453 |
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454 | for (it = mViewCells.begin(); it != it_end; ++ it)
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455 | {
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456 | ExportColor(exporter, *it);
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457 | ExportVcGeometry(exporter, *it);
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458 | }
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459 | }
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460 |
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461 |
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462 | /**********************************************************************/
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463 | /* BspViewCellsManager implementation */
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464 | /**********************************************************************/
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465 |
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466 |
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467 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree,
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468 | int constructionSamples):
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469 | ViewCellsManager(constructionSamples),
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470 | mBspTree(bspTree)
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471 | {
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472 | }
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473 |
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474 |
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475 | bool BspViewCellsManager::ViewCellsConstructed() const
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476 | {
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477 | return mBspTree->GetRoot() != NULL;
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478 | }
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479 |
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480 |
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481 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
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482 | {
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483 | return new BspViewCell(mesh);
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484 | }
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485 |
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486 |
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487 | int BspViewCellsManager::Construct(const ObjectContainer &objects,
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488 | const VssRayContainer &rays)
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489 | {
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490 | // if view cells were already constructed
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491 | if (ViewCellsConstructed())
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492 | return 0;
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493 |
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494 | int sampleContributions = 0;
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495 |
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496 | // construct view cells using the collected samples
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497 | RayContainer constructionRays;
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498 | VssRayContainer savedRays;
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499 |
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500 | const int limit = min(mConstructionSamples, (int)rays.size());
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501 |
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502 | VssRayContainer::const_iterator it, it_end = rays.end();
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503 |
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504 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
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505 |
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506 | for (it = rays.begin(); it != it_end; ++ it)
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507 | {
|
---|
508 | if (Random(1.0f) < prop)
|
---|
509 | constructionRays.push_back(new Ray(*(*it)));
|
---|
510 | else
|
---|
511 | savedRays.push_back(*it);
|
---|
512 | }
|
---|
513 |
|
---|
514 | if (mViewCells.empty())
|
---|
515 | {
|
---|
516 | // no view cells loaded
|
---|
517 | mBspTree->Construct(objects, constructionRays);
|
---|
518 | // collect final view cells
|
---|
519 | mBspTree->CollectViewCells(mViewCells);
|
---|
520 | }
|
---|
521 | else
|
---|
522 | {
|
---|
523 | mBspTree->Construct(mViewCells);
|
---|
524 | }
|
---|
525 |
|
---|
526 | // destroy rays created only for construction
|
---|
527 | CLEAR_CONTAINER(constructionRays);
|
---|
528 |
|
---|
529 | Debug << mBspTree->GetStatistics() << endl;
|
---|
530 |
|
---|
531 | EvaluateViewCellsStats();
|
---|
532 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
533 |
|
---|
534 | // recast rest of the rays
|
---|
535 | ComputeSampleContributions(savedRays);
|
---|
536 |
|
---|
537 | return sampleContributions;
|
---|
538 | }
|
---|
539 |
|
---|
540 | void BspViewCellsManager::CollectViewCells()
|
---|
541 | {
|
---|
542 | mBspTree->CollectViewCells(mViewCells);
|
---|
543 | }
|
---|
544 |
|
---|
545 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
546 | {
|
---|
547 | // compute view cell area as subsititute for probability
|
---|
548 | #if 0
|
---|
549 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
|
---|
550 | #else
|
---|
551 | return GetArea(viewCell) / GetAccVcArea();
|
---|
552 | #endif
|
---|
553 | }
|
---|
554 |
|
---|
555 |
|
---|
556 | float BspViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
557 | {
|
---|
558 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
559 | }
|
---|
560 |
|
---|
561 |
|
---|
562 | AxisAlignedBox3 BspViewCellsManager::GetSceneBbox() const
|
---|
563 | {
|
---|
564 | return mBspTree->GetBoundingBox();
|
---|
565 | }
|
---|
566 |
|
---|
567 |
|
---|
568 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
569 | const Vector3 &termination,
|
---|
570 | ViewCellContainer &viewcells)
|
---|
571 | {
|
---|
572 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
573 | }
|
---|
574 |
|
---|
575 |
|
---|
576 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
577 | const VssRayContainer &rays)
|
---|
578 | {
|
---|
579 | if (!ViewCellsConstructed())
|
---|
580 | {
|
---|
581 | Debug << "view cells not constructed" << endl;
|
---|
582 | return 0;
|
---|
583 | }
|
---|
584 |
|
---|
585 | //-- post processing of bsp view cells
|
---|
586 | int vcSize = 0;
|
---|
587 | int pvsSize = 0;
|
---|
588 |
|
---|
589 | EvaluateViewCellsStats();
|
---|
590 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl;
|
---|
591 |
|
---|
592 | mRenderer->RenderScene();
|
---|
593 | SimulationStatistics ss;
|
---|
594 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
595 |
|
---|
596 | Debug << ss << endl;
|
---|
597 |
|
---|
598 | if (1) // export view cells
|
---|
599 | {
|
---|
600 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
601 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
602 |
|
---|
603 | if (exporter)
|
---|
604 | {
|
---|
605 | //exporter->SetWireframe();
|
---|
606 | exporter->SetFilled();
|
---|
607 | ExportViewCells(exporter);
|
---|
608 |
|
---|
609 | if (mExportGeometry)
|
---|
610 | {
|
---|
611 | Material m;
|
---|
612 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
613 | exporter->SetForcedMaterial(m);
|
---|
614 | exporter->SetWireframe();
|
---|
615 |
|
---|
616 | exporter->ExportGeometry(objects);
|
---|
617 | }
|
---|
618 |
|
---|
619 | delete exporter;
|
---|
620 | }
|
---|
621 | cout << "finished" << endl;
|
---|
622 | }
|
---|
623 |
|
---|
624 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
625 |
|
---|
626 | long startTime = GetTime();
|
---|
627 |
|
---|
628 |
|
---|
629 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
630 | // perhaps we could recast the rays or remember the cells traversed inside the
|
---|
631 | // vssray (which would on other hand create some overhead)
|
---|
632 | //-- merge or subdivide view cells
|
---|
633 | int merged = 0;
|
---|
634 |
|
---|
635 | vector<BspIntersection>::const_iterator iit;
|
---|
636 | CLEAR_CONTAINER(mBspRays);
|
---|
637 | ConstructBspRays(rays, mPostProcessSamples);
|
---|
638 |
|
---|
639 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
640 | {
|
---|
641 | BspRay *ray = mBspRays[i];
|
---|
642 |
|
---|
643 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
644 | // leaves (i.e., the neighbors in the tree)
|
---|
645 | if (ray->intersections.size() < 2)
|
---|
646 | continue;
|
---|
647 |
|
---|
648 | iit = ray->intersections.begin();
|
---|
649 |
|
---|
650 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
651 | ++ iit;
|
---|
652 |
|
---|
653 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
654 | {
|
---|
655 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
656 |
|
---|
657 | if (ShouldMerge(leaf, previousLeaf))
|
---|
658 | {
|
---|
659 | MergeBspLeafViewCells(leaf, previousLeaf);
|
---|
660 |
|
---|
661 | ++ merged;
|
---|
662 | }
|
---|
663 |
|
---|
664 | previousLeaf = leaf;
|
---|
665 | }
|
---|
666 | }
|
---|
667 |
|
---|
668 | //-- stats and visualizations
|
---|
669 | cout << "finished" << endl;
|
---|
670 | cout << "merged " << merged << " view cells in "
|
---|
671 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
672 |
|
---|
673 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
674 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs"
|
---|
675 | << "using " << (int)mBspRays.size() << " samples" << endl << endl;
|
---|
676 |
|
---|
677 | CLEAR_CONTAINER(mBspRays);
|
---|
678 |
|
---|
679 | // reset view cells and stats
|
---|
680 | ResetViewCells();
|
---|
681 |
|
---|
682 | return merged;
|
---|
683 | }
|
---|
684 |
|
---|
685 |
|
---|
686 | BspViewCellsManager::~BspViewCellsManager()
|
---|
687 | {
|
---|
688 | CLEAR_CONTAINER(mBspRays);
|
---|
689 | }
|
---|
690 |
|
---|
691 |
|
---|
692 | int BspViewCellsManager::GetType() const
|
---|
693 | {
|
---|
694 | return BSP;
|
---|
695 | }
|
---|
696 |
|
---|
697 |
|
---|
698 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
699 | const VssRayContainer &sampleRays)
|
---|
700 | {
|
---|
701 | if (!ViewCellsConstructed())
|
---|
702 | return;
|
---|
703 | CLEAR_CONTAINER(mBspRays);
|
---|
704 | ConstructBspRays(sampleRays, mVisualizationSamples);
|
---|
705 |
|
---|
706 | if (1) // export view cells
|
---|
707 | {
|
---|
708 | cout << "exporting view cells after merge ... ";
|
---|
709 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
710 |
|
---|
711 | if (exporter)
|
---|
712 | {
|
---|
713 | ExportViewCells(exporter);
|
---|
714 | delete exporter;
|
---|
715 | }
|
---|
716 |
|
---|
717 | cout << "finished" << endl;
|
---|
718 | }
|
---|
719 |
|
---|
720 | //-- visualization of the BSP splits
|
---|
721 | bool exportSplits = false;
|
---|
722 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
723 |
|
---|
724 | if (exportSplits)
|
---|
725 | {
|
---|
726 | cout << "exporting splits ... ";
|
---|
727 | ExportSplits(objects);
|
---|
728 | cout << "finished" << endl;
|
---|
729 | }
|
---|
730 |
|
---|
731 | ExportBspPvs(objects);
|
---|
732 | }
|
---|
733 |
|
---|
734 |
|
---|
735 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
736 | {
|
---|
737 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
738 | }
|
---|
739 |
|
---|
740 |
|
---|
741 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
742 | {
|
---|
743 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
744 |
|
---|
745 | if (exporter)
|
---|
746 | {
|
---|
747 | Material m;
|
---|
748 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
749 | exporter->SetForcedMaterial(m);
|
---|
750 | exporter->SetWireframe();
|
---|
751 |
|
---|
752 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
753 |
|
---|
754 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
755 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
756 | exporter->SetForcedMaterial(m);
|
---|
757 | //exporter->ResetForcedMaterial();
|
---|
758 |
|
---|
759 | exporter->SetFilled();
|
---|
760 |
|
---|
761 | // export rays
|
---|
762 | if (0)
|
---|
763 | {
|
---|
764 | VssRayContainer outRays;
|
---|
765 |
|
---|
766 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
767 |
|
---|
768 | for (int i = 0; i < raysSize; ++ i)
|
---|
769 | // only rays piercing geometry
|
---|
770 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
771 |
|
---|
772 | // export rays
|
---|
773 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
774 | }
|
---|
775 |
|
---|
776 | if (mExportGeometry)
|
---|
777 | exporter->ExportGeometry(objects);
|
---|
778 |
|
---|
779 | delete exporter;
|
---|
780 | }
|
---|
781 | }
|
---|
782 |
|
---|
783 |
|
---|
784 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
785 | {
|
---|
786 | const int leafOut = 10;
|
---|
787 |
|
---|
788 | ViewCell::NewMail();
|
---|
789 |
|
---|
790 | //-- some rays for output
|
---|
791 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
792 |
|
---|
793 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
794 | Debug << "\nOutput view cells: " << endl;
|
---|
795 |
|
---|
796 | // sort view cells to get largest view cells
|
---|
797 | #if 0
|
---|
798 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
799 | #endif
|
---|
800 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
801 |
|
---|
802 | for (int i = 0; i < limit; ++ i)
|
---|
803 | {
|
---|
804 | cout << "creating output for view cell " << i << " ... ";
|
---|
805 | VssRayContainer vcRays;
|
---|
806 | Intersectable::NewMail();
|
---|
807 | #if 0
|
---|
808 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
809 | #else
|
---|
810 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[Random((int)mViewCells.size())]);
|
---|
811 | #endif
|
---|
812 | cout << "creating output for view cell " << i << " ... ";
|
---|
813 |
|
---|
814 | #if 0
|
---|
815 | // check whether we can add the current ray to the output rays
|
---|
816 | for (int k = 0; k < raysOut; ++ k)
|
---|
817 | {
|
---|
818 | BspRay *ray = mBspRays[k];
|
---|
819 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
820 | {
|
---|
821 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
822 | if (vc == leaf->GetViewCell())
|
---|
823 | vcRays.push_back(ray->vssRay);
|
---|
824 | }
|
---|
825 | }
|
---|
826 | #endif
|
---|
827 | //bspLeaves[j]->Mail();
|
---|
828 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
829 |
|
---|
830 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
831 |
|
---|
832 | exporter->SetWireframe();
|
---|
833 |
|
---|
834 | Material m;//= RandomMaterial();
|
---|
835 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
836 | exporter->SetForcedMaterial(m);
|
---|
837 |
|
---|
838 | if (vc->GetMesh())
|
---|
839 | exporter->ExportViewCell(vc);
|
---|
840 | else
|
---|
841 | {
|
---|
842 | PolygonContainer vcGeom;
|
---|
843 |
|
---|
844 | //-- export view cell
|
---|
845 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
846 | exporter->ExportPolygons(vcGeom);
|
---|
847 | CLEAR_CONTAINER(vcGeom);
|
---|
848 | }
|
---|
849 |
|
---|
850 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
851 | << ", piercing rays=" << (int)vcRays.size()
|
---|
852 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
853 |
|
---|
854 |
|
---|
855 | // export rays piercing this view cell
|
---|
856 | #if 0
|
---|
857 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
858 | #else
|
---|
859 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
860 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
861 | exporter->ExportRays((*lit)->mVssRays);
|
---|
862 | #endif
|
---|
863 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
864 | exporter->SetForcedMaterial(m);
|
---|
865 |
|
---|
866 | ObjectPvsMap::const_iterator it,
|
---|
867 | it_end = vc->GetPvs().mEntries.end();
|
---|
868 |
|
---|
869 | exporter->SetFilled();
|
---|
870 |
|
---|
871 | // output PVS of view cell
|
---|
872 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
873 | {
|
---|
874 | Intersectable *intersect = (*it).first;
|
---|
875 |
|
---|
876 | if (!intersect->Mailed())
|
---|
877 | {
|
---|
878 | Material m = RandomMaterial();
|
---|
879 | exporter->SetForcedMaterial(m);
|
---|
880 |
|
---|
881 | exporter->ExportIntersectable(intersect);
|
---|
882 | intersect->Mail();
|
---|
883 | }
|
---|
884 | }
|
---|
885 |
|
---|
886 | DEL_PTR(exporter);
|
---|
887 | cout << "finished" << endl;
|
---|
888 | }
|
---|
889 |
|
---|
890 | Debug << endl;
|
---|
891 | }
|
---|
892 |
|
---|
893 |
|
---|
894 | bool BspViewCellsManager::MergeBspLeafViewCells(BspLeaf *front, BspLeaf *back) const
|
---|
895 | {
|
---|
896 | BspViewCell *viewCell =
|
---|
897 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(),
|
---|
898 | *back->GetViewCell()));
|
---|
899 |
|
---|
900 | if (!viewCell)
|
---|
901 | return false;
|
---|
902 |
|
---|
903 | //-- change pointer to view cells of all leaves associated with the previous view cells
|
---|
904 | BspViewCell *fVc = front->GetViewCell();
|
---|
905 | BspViewCell *bVc = back->GetViewCell();
|
---|
906 |
|
---|
907 | vector<BspLeaf *> fLeaves = fVc->mLeaves;
|
---|
908 | vector<BspLeaf *> bLeaves = bVc->mLeaves;
|
---|
909 |
|
---|
910 | vector<BspLeaf *>::const_iterator it;
|
---|
911 |
|
---|
912 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
913 | {
|
---|
914 | (*it)->SetViewCell(viewCell);
|
---|
915 | viewCell->mLeaves.push_back(*it);
|
---|
916 | }
|
---|
917 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
918 | {
|
---|
919 | (*it)->SetViewCell(viewCell);
|
---|
920 | viewCell->mLeaves.push_back(*it);
|
---|
921 | }
|
---|
922 |
|
---|
923 | DEL_PTR(fVc);
|
---|
924 | DEL_PTR(bVc);
|
---|
925 |
|
---|
926 | return true;
|
---|
927 | }
|
---|
928 |
|
---|
929 | bool BspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
930 | {
|
---|
931 | ViewCell *fvc = front->GetViewCell();
|
---|
932 | ViewCell *bvc = back->GetViewCell();
|
---|
933 |
|
---|
934 | if ((fvc == mBspTree->GetRootCell()) || (bvc == mBspTree->GetRootCell()) || (fvc == bvc))
|
---|
935 | return false;
|
---|
936 |
|
---|
937 | int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
938 |
|
---|
939 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
940 | {
|
---|
941 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
942 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
943 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
944 | {
|
---|
945 | return true;
|
---|
946 | }
|
---|
947 | }
|
---|
948 |
|
---|
949 | return false;
|
---|
950 | }
|
---|
951 |
|
---|
952 |
|
---|
953 | void BspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
954 | const int numSamples)
|
---|
955 | {
|
---|
956 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
957 |
|
---|
958 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
959 | {
|
---|
960 | VssRay *vssRay = *it;
|
---|
961 | BspRay *ray = new BspRay(vssRay);
|
---|
962 |
|
---|
963 | ViewCellContainer viewCells;
|
---|
964 |
|
---|
965 | // cast line segment to get intersections with bsp leaves
|
---|
966 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
967 |
|
---|
968 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
969 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
970 | {
|
---|
971 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
972 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
973 | }
|
---|
974 |
|
---|
975 | mBspRays.push_back(ray);
|
---|
976 | }
|
---|
977 | }
|
---|
978 |
|
---|
979 |
|
---|
980 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
981 | ViewCell *vc) const
|
---|
982 | {
|
---|
983 | if (mColorCode == 0) // Random color
|
---|
984 | {
|
---|
985 | exporter->ResetForcedMaterial();
|
---|
986 | return;
|
---|
987 | }
|
---|
988 |
|
---|
989 | float importance = 0;
|
---|
990 |
|
---|
991 | switch (mColorCode)
|
---|
992 | {
|
---|
993 | case 1: // pvs
|
---|
994 | {
|
---|
995 | importance = (float)vc->GetPvs().GetSize() /
|
---|
996 | (float)mViewCellsStats.maxPvs;
|
---|
997 | }
|
---|
998 | break;
|
---|
999 | case 2: // merges
|
---|
1000 | {
|
---|
1001 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
1002 |
|
---|
1003 | importance = (float)bspVc->mLeaves.size() /
|
---|
1004 | (float)mViewCellsStats.maxLeaves;
|
---|
1005 | }
|
---|
1006 | break;
|
---|
1007 | case 3: // merge tree differene
|
---|
1008 | {
|
---|
1009 | // TODO
|
---|
1010 | }
|
---|
1011 | break;
|
---|
1012 | default:
|
---|
1013 | break;
|
---|
1014 | }
|
---|
1015 |
|
---|
1016 | Material m;
|
---|
1017 | m.mDiffuseColor.b = 1.0f;
|
---|
1018 | m.mDiffuseColor.r = importance;
|
---|
1019 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1020 |
|
---|
1021 | exporter->SetForcedMaterial(m);
|
---|
1022 | }
|
---|
1023 |
|
---|
1024 | void BspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1025 | ViewCell *vc) const
|
---|
1026 | {
|
---|
1027 | if (vc->GetMesh())
|
---|
1028 | exporter->ExportViewCell(vc);
|
---|
1029 | else
|
---|
1030 | {
|
---|
1031 | PolygonContainer cell;
|
---|
1032 | mBspTree->ConstructGeometry(
|
---|
1033 | dynamic_cast<BspViewCell *>(vc), cell);
|
---|
1034 | exporter->ExportPolygons(cell);
|
---|
1035 | }
|
---|
1036 | }
|
---|
1037 |
|
---|
1038 | /**********************************************************************/
|
---|
1039 | /* KdViewCellsManager implementation */
|
---|
1040 | /**********************************************************************/
|
---|
1041 |
|
---|
1042 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
1043 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
1044 | {
|
---|
1045 | }
|
---|
1046 |
|
---|
1047 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1048 | {
|
---|
1049 | // compute view cell area / volume as subsititute for probability
|
---|
1050 | #if 0
|
---|
1051 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
|
---|
1052 | #endif
|
---|
1053 | #if 1
|
---|
1054 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1055 | #endif
|
---|
1056 | #if 0
|
---|
1057 | return GetVolume(viewCell) / GetSceneBbox().GetVolume();
|
---|
1058 | #endif
|
---|
1059 | }
|
---|
1060 |
|
---|
1061 |
|
---|
1062 | float KdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1063 | {
|
---|
1064 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1065 | }
|
---|
1066 |
|
---|
1067 |
|
---|
1068 | AxisAlignedBox3 KdViewCellsManager::GetSceneBbox() const
|
---|
1069 | {
|
---|
1070 | return mKdTree->GetBox();
|
---|
1071 | }
|
---|
1072 |
|
---|
1073 | void KdViewCellsManager::CollectViewCells()
|
---|
1074 | {
|
---|
1075 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
1076 | }
|
---|
1077 |
|
---|
1078 | int KdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1079 | const VssRayContainer &rays)
|
---|
1080 | {
|
---|
1081 | // if view cells already constructed
|
---|
1082 | if (ViewCellsConstructed())
|
---|
1083 | return 0;
|
---|
1084 |
|
---|
1085 | mKdTree->Construct();
|
---|
1086 |
|
---|
1087 | mTotalAreaValid = false;
|
---|
1088 | // create the view cells
|
---|
1089 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
1090 |
|
---|
1091 | // cast rays
|
---|
1092 | ComputeSampleContributions(rays);
|
---|
1093 |
|
---|
1094 | EvaluateViewCellsStats();
|
---|
1095 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1096 |
|
---|
1097 | return 0;
|
---|
1098 | }
|
---|
1099 |
|
---|
1100 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
1101 | {
|
---|
1102 | return mKdTree->GetRoot() != NULL;
|
---|
1103 | }
|
---|
1104 |
|
---|
1105 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1106 | const VssRayContainer &rays)
|
---|
1107 | {
|
---|
1108 | return 0;
|
---|
1109 | }
|
---|
1110 |
|
---|
1111 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1112 | const VssRayContainer &sampleRays)
|
---|
1113 | {
|
---|
1114 | if (!ViewCellsConstructed())
|
---|
1115 | return;
|
---|
1116 |
|
---|
1117 | // using view cells instead of the kd PVS of objects
|
---|
1118 | const bool useViewCells = true;
|
---|
1119 | bool exportRays = false;
|
---|
1120 |
|
---|
1121 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
1122 | const int pvsOut = min((int)objects.size(), 10);
|
---|
1123 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
1124 |
|
---|
1125 | if (useViewCells)
|
---|
1126 | {
|
---|
1127 | const int leafOut = 10;
|
---|
1128 |
|
---|
1129 | ViewCell::NewMail();
|
---|
1130 |
|
---|
1131 | //-- some rays for output
|
---|
1132 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1133 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
1134 |
|
---|
1135 | //-- some random view cells and rays for output
|
---|
1136 | vector<KdLeaf *> kdLeaves;
|
---|
1137 |
|
---|
1138 | for (int i = 0; i < leafOut; ++ i)
|
---|
1139 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
1140 |
|
---|
1141 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
1142 | {
|
---|
1143 | KdLeaf *leaf = kdLeaves[i];
|
---|
1144 | RayContainer vcRays;
|
---|
1145 |
|
---|
1146 | cout << "creating output for view cell " << i << " ... ";
|
---|
1147 | #if 0
|
---|
1148 | // check whether we can add the current ray to the output rays
|
---|
1149 | for (int k = 0; k < raysOut; ++ k)
|
---|
1150 | {
|
---|
1151 | Ray *ray = sampleRays[k];
|
---|
1152 |
|
---|
1153 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1154 | {
|
---|
1155 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
1156 |
|
---|
1157 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
1158 | {
|
---|
1159 | vcRays.push_back(ray);
|
---|
1160 | }
|
---|
1161 | }
|
---|
1162 | }
|
---|
1163 | #endif
|
---|
1164 | Intersectable::NewMail();
|
---|
1165 |
|
---|
1166 | ViewCell *vc = leaf->mViewCell;
|
---|
1167 |
|
---|
1168 | //bspLeaves[j]->Mail();
|
---|
1169 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
1170 |
|
---|
1171 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1172 | exporter->SetFilled();
|
---|
1173 |
|
---|
1174 | exporter->SetWireframe();
|
---|
1175 | //exporter->SetFilled();
|
---|
1176 |
|
---|
1177 | Material m;//= RandomMaterial();
|
---|
1178 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
1179 | exporter->SetForcedMaterial(m);
|
---|
1180 |
|
---|
1181 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
1182 | exporter->ExportBox(box);
|
---|
1183 |
|
---|
1184 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1185 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1186 |
|
---|
1187 | // export rays piercing this view cell
|
---|
1188 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
1189 |
|
---|
1190 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1191 | exporter->SetForcedMaterial(m);
|
---|
1192 |
|
---|
1193 | // exporter->SetWireframe();
|
---|
1194 | exporter->SetFilled();
|
---|
1195 |
|
---|
1196 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
1197 | // output PVS of view cell
|
---|
1198 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1199 | {
|
---|
1200 | Intersectable *intersect = (*it).first;
|
---|
1201 | if (!intersect->Mailed())
|
---|
1202 | {
|
---|
1203 | exporter->ExportIntersectable(intersect);
|
---|
1204 | intersect->Mail();
|
---|
1205 | }
|
---|
1206 | }
|
---|
1207 |
|
---|
1208 | DEL_PTR(exporter);
|
---|
1209 | cout << "finished" << endl;
|
---|
1210 | }
|
---|
1211 |
|
---|
1212 | DEL_PTR(rays);
|
---|
1213 | }
|
---|
1214 | else // using kd PVS of objects
|
---|
1215 | {
|
---|
1216 | for (int i = 0; i < limit; ++ i)
|
---|
1217 | {
|
---|
1218 | VssRay *ray = sampleRays[i];
|
---|
1219 |
|
---|
1220 | // check whether we can add this to the rays
|
---|
1221 | for (int j = 0; j < pvsOut; j++)
|
---|
1222 | {
|
---|
1223 | if (objects[j] == ray->mTerminationObject)
|
---|
1224 | {
|
---|
1225 | rays[j].push_back(ray);
|
---|
1226 | }
|
---|
1227 | }
|
---|
1228 | }
|
---|
1229 |
|
---|
1230 | if (exportRays)
|
---|
1231 | {
|
---|
1232 | Exporter *exporter = NULL;
|
---|
1233 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
1234 | exporter->SetWireframe();
|
---|
1235 | exporter->ExportKdTree(*mKdTree);
|
---|
1236 |
|
---|
1237 | for (i=0; i < pvsOut; i++)
|
---|
1238 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
1239 |
|
---|
1240 | exporter->SetFilled();
|
---|
1241 |
|
---|
1242 | delete exporter;
|
---|
1243 | }
|
---|
1244 |
|
---|
1245 | for (int k=0; k < pvsOut; k++)
|
---|
1246 | {
|
---|
1247 | Intersectable *object = objects[k];
|
---|
1248 | char s[64];
|
---|
1249 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
1250 |
|
---|
1251 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1252 | exporter->SetWireframe();
|
---|
1253 |
|
---|
1254 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
1255 | Intersectable::NewMail();
|
---|
1256 |
|
---|
1257 | // avoid adding the object to the list
|
---|
1258 | object->Mail();
|
---|
1259 | ObjectContainer visibleObjects;
|
---|
1260 |
|
---|
1261 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
1262 | {
|
---|
1263 | KdNode *node = (*i).first;
|
---|
1264 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
1265 |
|
---|
1266 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
1267 | }
|
---|
1268 |
|
---|
1269 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
1270 | exporter->SetFilled();
|
---|
1271 |
|
---|
1272 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
1273 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
1274 |
|
---|
1275 | Material m;
|
---|
1276 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1277 | exporter->SetForcedMaterial(m);
|
---|
1278 | exporter->ExportIntersectable(object);
|
---|
1279 |
|
---|
1280 | delete exporter;
|
---|
1281 | }
|
---|
1282 | }
|
---|
1283 | }
|
---|
1284 |
|
---|
1285 |
|
---|
1286 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1287 | ViewCell *vc) const
|
---|
1288 | {
|
---|
1289 | // TODO
|
---|
1290 | }
|
---|
1291 |
|
---|
1292 |
|
---|
1293 | void KdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1294 | ViewCell *vc) const
|
---|
1295 | {
|
---|
1296 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(vc);
|
---|
1297 | vector<KdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
1298 |
|
---|
1299 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1300 | exporter->ExportBox(mKdTree->GetBox(*it));
|
---|
1301 | }
|
---|
1302 |
|
---|
1303 |
|
---|
1304 | int KdViewCellsManager::GetType() const
|
---|
1305 | {
|
---|
1306 | return ViewCellsManager::KD;
|
---|
1307 | }
|
---|
1308 |
|
---|
1309 |
|
---|
1310 |
|
---|
1311 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
1312 | {
|
---|
1313 | KdNode *node = leaf;
|
---|
1314 |
|
---|
1315 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
1316 | node = node->mParent;
|
---|
1317 | return node;
|
---|
1318 | }
|
---|
1319 |
|
---|
1320 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1321 | const Vector3 &termination,
|
---|
1322 | ViewCellContainer &viewcells)
|
---|
1323 | {
|
---|
1324 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1325 | }
|
---|
1326 |
|
---|
1327 |
|
---|
1328 | /**********************************************************************/
|
---|
1329 | /* VspKdViewCellsManager implementation */
|
---|
1330 | /**********************************************************************/
|
---|
1331 |
|
---|
1332 |
|
---|
1333 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree,
|
---|
1334 | int constructionSamples):
|
---|
1335 | ViewCellsManager(constructionSamples),
|
---|
1336 | mVspKdTree(vspKdTree)
|
---|
1337 | {
|
---|
1338 | mVspKdTree->SetViewCellsManager(this);
|
---|
1339 | }
|
---|
1340 |
|
---|
1341 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1342 | {
|
---|
1343 | // volume or area substitutes for view point probability
|
---|
1344 | #if 0
|
---|
1345 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
|
---|
1346 | #else
|
---|
1347 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1348 | #endif
|
---|
1349 | }
|
---|
1350 |
|
---|
1351 |
|
---|
1352 | float VspKdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1353 | {
|
---|
1354 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1355 | }
|
---|
1356 |
|
---|
1357 | void VspKdViewCellsManager::CollectViewCells()
|
---|
1358 | {
|
---|
1359 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
1360 | }
|
---|
1361 |
|
---|
1362 | int VspKdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1363 | const VssRayContainer &rays)
|
---|
1364 | {
|
---|
1365 | // if view cells already constructed
|
---|
1366 | if (ViewCellsConstructed())
|
---|
1367 | return 0;
|
---|
1368 |
|
---|
1369 | VssRayContainer constructionRays;
|
---|
1370 | VssRayContainer savedRays;
|
---|
1371 |
|
---|
1372 | GetRaySets(rays,
|
---|
1373 | mConstructionSamples,
|
---|
1374 | constructionRays,
|
---|
1375 | &savedRays);
|
---|
1376 |
|
---|
1377 | Debug << "constructing vsp kd tree using "
|
---|
1378 | << (int)constructionRays.size() << " samples" << endl;
|
---|
1379 |
|
---|
1380 | mVspKdTree->Construct(constructionRays, &mSceneBox);
|
---|
1381 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
1382 |
|
---|
1383 | // export leaf building blocks
|
---|
1384 | ExportLeaves(objects, rays);
|
---|
1385 |
|
---|
1386 | // finally merge kd leaf building blocks to view cells
|
---|
1387 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
1388 |
|
---|
1389 | // collapse siblings belonging to the same view cell
|
---|
1390 | mVspKdTree->CollapseTree();
|
---|
1391 |
|
---|
1392 | // collapse siblings belonging to the same view cell
|
---|
1393 | mVspKdTree->RefineViewCells(rays);
|
---|
1394 |
|
---|
1395 | // evaluale view cell stats
|
---|
1396 | ResetViewCells();
|
---|
1397 |
|
---|
1398 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1399 |
|
---|
1400 | long startTime = GetTime();
|
---|
1401 | // recast rest of rays
|
---|
1402 | ComputeSampleContributions(savedRays);
|
---|
1403 |
|
---|
1404 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
1405 | << " secs" << endl;
|
---|
1406 |
|
---|
1407 | return merged;
|
---|
1408 | }
|
---|
1409 |
|
---|
1410 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
1411 | {
|
---|
1412 | return mVspKdTree->GetRoot() != NULL;
|
---|
1413 | }
|
---|
1414 |
|
---|
1415 |
|
---|
1416 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1417 | {
|
---|
1418 | return new VspKdViewCell(mesh);
|
---|
1419 | }
|
---|
1420 |
|
---|
1421 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1422 | const VssRayContainer &rays)
|
---|
1423 | {
|
---|
1424 | if (!ViewCellsConstructed())
|
---|
1425 | return 0;
|
---|
1426 |
|
---|
1427 | // recalculate stats
|
---|
1428 | EvaluateViewCellsStats();
|
---|
1429 |
|
---|
1430 | return 0;
|
---|
1431 | }
|
---|
1432 |
|
---|
1433 |
|
---|
1434 | AxisAlignedBox3 VspKdViewCellsManager::GetSceneBbox() const
|
---|
1435 | {
|
---|
1436 | return mVspKdTree->GetBBox(mVspKdTree->GetRoot());
|
---|
1437 | }
|
---|
1438 |
|
---|
1439 |
|
---|
1440 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
1441 | const VssRayContainer &sampleRays)
|
---|
1442 | {
|
---|
1443 | if (!ViewCellsConstructed())
|
---|
1444 | return;
|
---|
1445 |
|
---|
1446 | //-- export leaf building blocks
|
---|
1447 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
1448 | if (!exporter)
|
---|
1449 | return;
|
---|
1450 |
|
---|
1451 | //exporter->SetWireframe();
|
---|
1452 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
1453 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
1454 |
|
---|
1455 | if (mExportGeometry)
|
---|
1456 | exporter->ExportGeometry(objects);
|
---|
1457 |
|
---|
1458 | if (mExportRays)
|
---|
1459 | {
|
---|
1460 | const float prob = (float)mVisualizationSamples
|
---|
1461 | / ((float)sampleRays.size() + Limits::Small);
|
---|
1462 |
|
---|
1463 | exporter->SetWireframe();
|
---|
1464 |
|
---|
1465 | //-- collect uniformly distributed rays
|
---|
1466 | VssRayContainer rays;
|
---|
1467 |
|
---|
1468 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1469 | {
|
---|
1470 | if (RandomValue(0,1) < prob)
|
---|
1471 | rays.push_back(sampleRays[i]);
|
---|
1472 | }
|
---|
1473 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1474 | }
|
---|
1475 |
|
---|
1476 | delete exporter;
|
---|
1477 | }
|
---|
1478 |
|
---|
1479 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1480 | const VssRayContainer &sampleRays)
|
---|
1481 | {
|
---|
1482 | if (!ViewCellsConstructed())
|
---|
1483 | return;
|
---|
1484 |
|
---|
1485 | //-- export single view cells
|
---|
1486 | for (int i = 0; i < 10; ++ i)
|
---|
1487 | {
|
---|
1488 | char s[64];
|
---|
1489 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
1490 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1491 | const int idx =
|
---|
1492 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
1493 |
|
---|
1494 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
1495 |
|
---|
1496 | cout << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
1497 | Debug << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
1498 | //-- export geometry
|
---|
1499 | Material m;
|
---|
1500 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1501 |
|
---|
1502 | exporter->SetForcedMaterial(m);
|
---|
1503 | exporter->SetWireframe();
|
---|
1504 |
|
---|
1505 | ExportVcGeometry(exporter, vc);
|
---|
1506 |
|
---|
1507 | //-- export stored rays
|
---|
1508 | if (mExportRays)
|
---|
1509 | {
|
---|
1510 | vector<VspKdLeaf *>::const_iterator it,
|
---|
1511 | it_end = vc->mLeaves.end();
|
---|
1512 |
|
---|
1513 | for (it = vc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1514 | {
|
---|
1515 | VspKdLeaf *leaf = *it;
|
---|
1516 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
1517 |
|
---|
1518 | VssRayContainer vssRays;
|
---|
1519 |
|
---|
1520 | VssRayContainer castRays;
|
---|
1521 | VssRayContainer initRays;
|
---|
1522 |
|
---|
1523 | leaf->GetRays(vssRays);
|
---|
1524 |
|
---|
1525 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
1526 | const float prop = 200.0f / (float)vssRays.size();
|
---|
1527 |
|
---|
1528 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
1529 | {
|
---|
1530 | if (Random(1) < prop)
|
---|
1531 | if ((*it)->mTerminationObject == NULL)
|
---|
1532 | castRays.push_back(*it);
|
---|
1533 | else
|
---|
1534 | initRays.push_back(*it);
|
---|
1535 | }
|
---|
1536 |
|
---|
1537 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
1538 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
1539 | }
|
---|
1540 | }
|
---|
1541 |
|
---|
1542 | //-- output PVS of view cell
|
---|
1543 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1544 | exporter->SetForcedMaterial(m);
|
---|
1545 |
|
---|
1546 | Intersectable::NewMail();
|
---|
1547 |
|
---|
1548 | ObjectPvsMap::const_iterator it,
|
---|
1549 | it_end = vc->GetPvs().mEntries.end();
|
---|
1550 |
|
---|
1551 | exporter->SetFilled();
|
---|
1552 |
|
---|
1553 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1554 | {
|
---|
1555 | Intersectable *intersect = (*it).first;
|
---|
1556 |
|
---|
1557 | if (!intersect->Mailed())
|
---|
1558 | {
|
---|
1559 | Material m = RandomMaterial();
|
---|
1560 | exporter->SetForcedMaterial(m);
|
---|
1561 |
|
---|
1562 | exporter->ExportIntersectable(intersect);
|
---|
1563 | intersect->Mail();
|
---|
1564 | }
|
---|
1565 | }
|
---|
1566 |
|
---|
1567 | delete exporter;
|
---|
1568 | }
|
---|
1569 |
|
---|
1570 | //-- export final view cells
|
---|
1571 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
1572 |
|
---|
1573 | //if (exportGeometry) exporter->SetWireframe();
|
---|
1574 | //else exporter->SetFilled();
|
---|
1575 |
|
---|
1576 | ExportViewCells(exporter);
|
---|
1577 |
|
---|
1578 | if (mExportGeometry)
|
---|
1579 | {
|
---|
1580 | exporter->SetFilled();
|
---|
1581 | exporter->ExportGeometry(objects);
|
---|
1582 | }
|
---|
1583 |
|
---|
1584 | if (mExportRays)
|
---|
1585 | {
|
---|
1586 | const float prob = (float)mVisualizationSamples
|
---|
1587 | / ((float)sampleRays.size() + Limits::Small);
|
---|
1588 |
|
---|
1589 | exporter->SetWireframe();
|
---|
1590 |
|
---|
1591 | VssRayContainer rays;
|
---|
1592 |
|
---|
1593 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1594 | {
|
---|
1595 | if (RandomValue(0,1) < prob)
|
---|
1596 | rays.push_back(sampleRays[i]);
|
---|
1597 | }
|
---|
1598 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1599 | }
|
---|
1600 |
|
---|
1601 | delete exporter;
|
---|
1602 | }
|
---|
1603 |
|
---|
1604 | int VspKdViewCellsManager::GetType() const
|
---|
1605 | {
|
---|
1606 | return VSP_KD;
|
---|
1607 | }
|
---|
1608 |
|
---|
1609 |
|
---|
1610 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1611 | const Vector3 &termination,
|
---|
1612 | ViewCellContainer &viewcells)
|
---|
1613 | {
|
---|
1614 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1615 | }
|
---|
1616 |
|
---|
1617 |
|
---|
1618 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1619 | ViewCell *vc) const
|
---|
1620 | {
|
---|
1621 | if (mColorCode == 0) // Random color
|
---|
1622 | return;
|
---|
1623 |
|
---|
1624 | float importance = 0;
|
---|
1625 |
|
---|
1626 | switch (mColorCode)
|
---|
1627 | {
|
---|
1628 | case 1: // pvs
|
---|
1629 | {
|
---|
1630 | importance = (float)vc->GetPvs().GetSize() /
|
---|
1631 | (float)mViewCellsStats.maxPvs;
|
---|
1632 | }
|
---|
1633 | break;
|
---|
1634 | case 2: // merges
|
---|
1635 | {
|
---|
1636 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
1637 |
|
---|
1638 | importance = (float)vspKdVc->mLeaves.size() /
|
---|
1639 | (float)mViewCellsStats.maxLeaves;
|
---|
1640 | }
|
---|
1641 | break;
|
---|
1642 | case 3: // merged tree depth difference
|
---|
1643 | {
|
---|
1644 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
1645 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
1646 | }
|
---|
1647 | break;
|
---|
1648 | default:
|
---|
1649 | break;
|
---|
1650 | }
|
---|
1651 |
|
---|
1652 | Material m;
|
---|
1653 | m.mDiffuseColor.b = 1.0f;
|
---|
1654 | m.mDiffuseColor.r = importance;
|
---|
1655 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1656 | //Debug << "importance: " << importance << endl;
|
---|
1657 | exporter->SetForcedMaterial(m);
|
---|
1658 | }
|
---|
1659 |
|
---|
1660 |
|
---|
1661 | void VspKdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1662 | ViewCell *vc) const
|
---|
1663 | {
|
---|
1664 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
1665 | vector<VspKdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
1666 |
|
---|
1667 | Mesh m;
|
---|
1668 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1669 | {
|
---|
1670 | mVspKdTree->GetBBox(*it).AddBoxToMesh(&m);
|
---|
1671 | }
|
---|
1672 |
|
---|
1673 | exporter->ExportMesh(&m);
|
---|
1674 | }
|
---|
1675 |
|
---|
1676 |
|
---|
1677 | /************************************************************************/
|
---|
1678 | /* VspBspViewCellsManager implementation */
|
---|
1679 | /************************************************************************/
|
---|
1680 |
|
---|
1681 |
|
---|
1682 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree,
|
---|
1683 | int constructionSamples):
|
---|
1684 | ViewCellsManager(constructionSamples),
|
---|
1685 | mVspBspTree(vspBspTree)
|
---|
1686 | {
|
---|
1687 | mVspBspTree->SetViewCellsManager(this);
|
---|
1688 | }
|
---|
1689 |
|
---|
1690 |
|
---|
1691 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
1692 | {
|
---|
1693 | }
|
---|
1694 |
|
---|
1695 |
|
---|
1696 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1697 | {
|
---|
1698 | #if 0
|
---|
1699 | return GetArea(viewCell) / GetSceneBbox().SurfaceArea();
|
---|
1700 | #else
|
---|
1701 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1702 | #endif
|
---|
1703 | }
|
---|
1704 |
|
---|
1705 |
|
---|
1706 | void VspBspViewCellsManager::CollectViewCells()
|
---|
1707 | {
|
---|
1708 | mVspBspTree->CollectViewCells(mViewCells);
|
---|
1709 | }
|
---|
1710 |
|
---|
1711 |
|
---|
1712 | float VspBspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
1713 | float objRendercost) const
|
---|
1714 | {
|
---|
1715 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1716 | }
|
---|
1717 |
|
---|
1718 |
|
---|
1719 | AxisAlignedBox3 VspBspViewCellsManager::GetSceneBbox() const
|
---|
1720 | {
|
---|
1721 | return mVspBspTree->GetBoundingBox();
|
---|
1722 | }
|
---|
1723 |
|
---|
1724 |
|
---|
1725 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
1726 | {
|
---|
1727 | return mVspBspTree->GetRoot() != NULL;
|
---|
1728 | }
|
---|
1729 |
|
---|
1730 |
|
---|
1731 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1732 | {
|
---|
1733 | return new BspViewCell(mesh);
|
---|
1734 | }
|
---|
1735 |
|
---|
1736 | int VspBspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1737 | const VssRayContainer &rays)
|
---|
1738 | {
|
---|
1739 | // if view cells were already constructed
|
---|
1740 | if (ViewCellsConstructed())
|
---|
1741 | return 0;
|
---|
1742 |
|
---|
1743 | Debug << "Constructing bsp view cells" << endl;
|
---|
1744 |
|
---|
1745 | int sampleContributions = 0;
|
---|
1746 |
|
---|
1747 | VssRayContainer sampleRays;
|
---|
1748 |
|
---|
1749 | int limit = min (mConstructionSamples, (int)rays.size());
|
---|
1750 |
|
---|
1751 |
|
---|
1752 | VssRayContainer constructionRays;
|
---|
1753 | VssRayContainer savedRays;
|
---|
1754 |
|
---|
1755 | GetRaySets(rays, mConstructionSamples, constructionRays, &savedRays);
|
---|
1756 |
|
---|
1757 | Debug << "construction rays: " << (int)savedRays.size() << endl;
|
---|
1758 | Debug << "saved rays: " << (int)constructionRays.size() << endl;
|
---|
1759 |
|
---|
1760 | mVspBspTree->Construct(constructionRays, &mSceneBox);
|
---|
1761 |
|
---|
1762 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
1763 |
|
---|
1764 | // collapse invalid regions
|
---|
1765 | cout << "collapsing invalid tree regions ... ";
|
---|
1766 | long startTime = GetTime();
|
---|
1767 | mVspBspTree->CollapseTree();
|
---|
1768 | Debug << "tree collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3 << " seconds" << endl;
|
---|
1769 | cout << "finished" << endl;
|
---|
1770 |
|
---|
1771 | cout << "reseting view cell stats ... ";
|
---|
1772 | ResetViewCells();
|
---|
1773 | cout << "finished" << endl;
|
---|
1774 |
|
---|
1775 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1776 |
|
---|
1777 | if (1) // export initial view cells
|
---|
1778 | {
|
---|
1779 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1780 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1781 |
|
---|
1782 | if (exporter)
|
---|
1783 | {
|
---|
1784 | //exporter->SetWireframe();
|
---|
1785 | exporter->SetFilled();
|
---|
1786 | ExportViewCells(exporter);
|
---|
1787 |
|
---|
1788 | if (0 && mExportRays)
|
---|
1789 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
1790 |
|
---|
1791 | if (mExportGeometry)
|
---|
1792 | exporter->ExportGeometry(objects);
|
---|
1793 |
|
---|
1794 | delete exporter;
|
---|
1795 | }
|
---|
1796 | cout << "finished" << endl;
|
---|
1797 | }
|
---|
1798 |
|
---|
1799 | startTime = GetTime();
|
---|
1800 | cout << "Computing remaining ray contributions ... ";
|
---|
1801 | // recast rest of rays
|
---|
1802 | ComputeSampleContributions(savedRays);
|
---|
1803 | cout << "finished" << endl;
|
---|
1804 |
|
---|
1805 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
1806 | << " secs" << endl;
|
---|
1807 |
|
---|
1808 | cout << "construction finished" << endl;
|
---|
1809 | return sampleContributions;
|
---|
1810 | }
|
---|
1811 |
|
---|
1812 |
|
---|
1813 | // matt TODO: remove
|
---|
1814 | int VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays) const
|
---|
1815 | {
|
---|
1816 | vector<BspIntersection>::const_iterator iit;
|
---|
1817 | vector<BspRay *>bspRays;
|
---|
1818 | int merged = 0;
|
---|
1819 |
|
---|
1820 | mVspBspTree->ConstructBspRays(bspRays, rays);
|
---|
1821 |
|
---|
1822 | for (int i = 0; i < (int)bspRays.size(); ++ i)
|
---|
1823 | {
|
---|
1824 | BspRay *ray = bspRays[i];
|
---|
1825 |
|
---|
1826 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
1827 | // leaves (i.e., the neighbors in the tree)
|
---|
1828 | if (ray->intersections.size() < 2)
|
---|
1829 | continue;
|
---|
1830 |
|
---|
1831 | iit = ray->intersections.begin();
|
---|
1832 |
|
---|
1833 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
1834 | ++ iit;
|
---|
1835 |
|
---|
1836 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
1837 | {
|
---|
1838 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
1839 |
|
---|
1840 | if (ShouldMerge(leaf, previousLeaf))
|
---|
1841 | {
|
---|
1842 | mVspBspTree->MergeViewCells(leaf, previousLeaf);
|
---|
1843 | ++ merged;
|
---|
1844 | }
|
---|
1845 | previousLeaf = leaf;
|
---|
1846 | }
|
---|
1847 | }
|
---|
1848 | CLEAR_CONTAINER(bspRays);
|
---|
1849 |
|
---|
1850 | return merged;
|
---|
1851 | }
|
---|
1852 |
|
---|
1853 |
|
---|
1854 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1855 | const VssRayContainer &rays)
|
---|
1856 | {
|
---|
1857 | if (!ViewCellsConstructed())
|
---|
1858 | {
|
---|
1859 | Debug << "view cells not constructed" << endl;
|
---|
1860 | return 0;
|
---|
1861 | }
|
---|
1862 |
|
---|
1863 | //-- post processing of bsp view cells
|
---|
1864 | int vcSize = 0;
|
---|
1865 | int pvsSize = 0;
|
---|
1866 |
|
---|
1867 | VssRayContainer postProcessRays;
|
---|
1868 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
1869 |
|
---|
1870 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
1871 | EvaluateViewCellsStats();
|
---|
1872 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl << endl;
|
---|
1873 |
|
---|
1874 | mRenderer->RenderScene();
|
---|
1875 | SimulationStatistics ss;
|
---|
1876 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
1877 | Debug << ss << endl;
|
---|
1878 |
|
---|
1879 | //-- merge or subdivide view cells
|
---|
1880 | int merged = 0;
|
---|
1881 |
|
---|
1882 | cout << "starting merge using " << mPostProcessSamples << " samples ... ";
|
---|
1883 | long startTime = GetTime();
|
---|
1884 |
|
---|
1885 | merged = mVspBspTree->MergeViewCells(postProcessRays);
|
---|
1886 |
|
---|
1887 | //-- stats and visualizations
|
---|
1888 | cout << "finished" << endl;
|
---|
1889 | cout << "merged " << merged << " view cells in "
|
---|
1890 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1891 |
|
---|
1892 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
1893 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
1894 |
|
---|
1895 | cout << "reseting view cell stats ... ";
|
---|
1896 | ResetViewCells();
|
---|
1897 | cout << "finished" << endl;
|
---|
1898 |
|
---|
1899 | //BspLeaf::NewMail();
|
---|
1900 | if (1) // export merged view cells
|
---|
1901 | {
|
---|
1902 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
1903 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
1904 |
|
---|
1905 | cout << "exporting view cells after merge ... ";
|
---|
1906 |
|
---|
1907 | if (exporter)
|
---|
1908 | {
|
---|
1909 | //exporter->SetWireframe();
|
---|
1910 | exporter->SetFilled();
|
---|
1911 | ExportViewCells(exporter);
|
---|
1912 |
|
---|
1913 | if (mExportGeometry)
|
---|
1914 | {
|
---|
1915 | Material m;
|
---|
1916 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1917 | exporter->SetForcedMaterial(m);
|
---|
1918 | exporter->SetFilled();
|
---|
1919 |
|
---|
1920 | exporter->ExportGeometry(objects);
|
---|
1921 | }
|
---|
1922 |
|
---|
1923 | delete exporter;
|
---|
1924 | }
|
---|
1925 | cout << "finished" << endl;
|
---|
1926 | }
|
---|
1927 |
|
---|
1928 | Debug << "render time before refine:" << endl;
|
---|
1929 | mRenderer->RenderScene();
|
---|
1930 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
1931 | Debug << ss << endl;
|
---|
1932 |
|
---|
1933 | cout << "Refining the merged view cells ... ";
|
---|
1934 | startTime = GetTime();
|
---|
1935 |
|
---|
1936 | // refining the merged view cells
|
---|
1937 | const int refined = mVspBspTree->RefineViewCells(rays);
|
---|
1938 |
|
---|
1939 | //-- stats and visualizations
|
---|
1940 | cout << "finished" << endl;
|
---|
1941 | cout << "refined " << refined << " view cells in "
|
---|
1942 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1943 |
|
---|
1944 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
1945 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
1946 |
|
---|
1947 | // collapse sibling leaves that share the same view cell
|
---|
1948 | mVspBspTree->CollapseTree();
|
---|
1949 |
|
---|
1950 | // reset view cells and stats
|
---|
1951 | ResetViewCells();
|
---|
1952 |
|
---|
1953 | return merged;
|
---|
1954 | }
|
---|
1955 |
|
---|
1956 |
|
---|
1957 | int VspBspViewCellsManager::GetType() const
|
---|
1958 | {
|
---|
1959 | return VSP_BSP;
|
---|
1960 | }
|
---|
1961 |
|
---|
1962 |
|
---|
1963 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
1964 | {
|
---|
1965 | if (!ViewCellsConstructed())
|
---|
1966 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
1967 |
|
---|
1968 | // TODO: set reasonable limit
|
---|
1969 | const int limit = 20;
|
---|
1970 |
|
---|
1971 | for (int i = 0; i < limit; ++ i)
|
---|
1972 | {
|
---|
1973 | viewPoint = mSceneBox.GetRandomPoint();
|
---|
1974 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
1975 | {
|
---|
1976 | return true;
|
---|
1977 | }
|
---|
1978 | }
|
---|
1979 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
1980 | return false;
|
---|
1981 | }
|
---|
1982 |
|
---|
1983 |
|
---|
1984 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
1985 | {
|
---|
1986 | return mSceneBox.IsInside(viewPoint) &&
|
---|
1987 | mVspBspTree->ViewPointValid(viewPoint);
|
---|
1988 | }
|
---|
1989 |
|
---|
1990 |
|
---|
1991 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1992 | const VssRayContainer &sampleRays)
|
---|
1993 | {
|
---|
1994 | if (!ViewCellsConstructed())
|
---|
1995 | return;
|
---|
1996 |
|
---|
1997 | VssRayContainer visRays;
|
---|
1998 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
1999 |
|
---|
2000 | if (1) // export view cells
|
---|
2001 | {
|
---|
2002 | cout << "exporting view cells after post process ... ";
|
---|
2003 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
2004 |
|
---|
2005 | if (exporter)
|
---|
2006 | {
|
---|
2007 | if (mExportGeometry)
|
---|
2008 | exporter->ExportGeometry(objects);
|
---|
2009 |
|
---|
2010 | // export rays
|
---|
2011 | if (mExportRays)
|
---|
2012 | {
|
---|
2013 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
2014 | }
|
---|
2015 |
|
---|
2016 | ExportViewCells(exporter);
|
---|
2017 | delete exporter;
|
---|
2018 | }
|
---|
2019 |
|
---|
2020 | cout << "finished" << endl;
|
---|
2021 | }
|
---|
2022 |
|
---|
2023 | //-- visualization of the BSP splits
|
---|
2024 | bool exportSplits = false;
|
---|
2025 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
2026 |
|
---|
2027 | if (exportSplits)
|
---|
2028 | {
|
---|
2029 | cout << "exporting splits ... ";
|
---|
2030 | ExportSplits(objects, visRays);
|
---|
2031 | cout << "finished" << endl;
|
---|
2032 | }
|
---|
2033 |
|
---|
2034 | // export single view cells
|
---|
2035 | ExportBspPvs(objects, visRays);
|
---|
2036 | }
|
---|
2037 |
|
---|
2038 |
|
---|
2039 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
2040 | const VssRayContainer &rays)
|
---|
2041 | {
|
---|
2042 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
2043 |
|
---|
2044 | if (exporter)
|
---|
2045 | {
|
---|
2046 | Material m;
|
---|
2047 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2048 | exporter->SetForcedMaterial(m);
|
---|
2049 | exporter->SetWireframe();
|
---|
2050 |
|
---|
2051 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
2052 |
|
---|
2053 | // take forced material, else big scenes cannot be viewed
|
---|
2054 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2055 | exporter->SetForcedMaterial(m);
|
---|
2056 | exporter->SetFilled();
|
---|
2057 |
|
---|
2058 | exporter->ResetForcedMaterial();
|
---|
2059 |
|
---|
2060 | // export rays
|
---|
2061 | if (mExportRays)
|
---|
2062 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
2063 |
|
---|
2064 | if (mExportGeometry)
|
---|
2065 | exporter->ExportGeometry(objects);
|
---|
2066 |
|
---|
2067 | delete exporter;
|
---|
2068 | }
|
---|
2069 | }
|
---|
2070 |
|
---|
2071 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
2072 | const VssRayContainer &rays)
|
---|
2073 | {
|
---|
2074 | const int leafOut = 10;
|
---|
2075 |
|
---|
2076 | ViewCell::NewMail();
|
---|
2077 |
|
---|
2078 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
2079 | Debug << "\nOutput view cells: " << endl;
|
---|
2080 |
|
---|
2081 | // sort view cells to visualize the largest view cells
|
---|
2082 | #if 0
|
---|
2083 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
2084 | #endif
|
---|
2085 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
2086 |
|
---|
2087 | #if 1
|
---|
2088 | //-- some rays for output
|
---|
2089 | vector<BspRay *> bspRays;
|
---|
2090 | mVspBspTree->ConstructBspRays(bspRays, rays);
|
---|
2091 |
|
---|
2092 | const int raysOut = min((int)bspRays.size(), mVisualizationSamples);
|
---|
2093 | #endif
|
---|
2094 |
|
---|
2095 | for (int i = 0; i < limit; ++ i)
|
---|
2096 | {
|
---|
2097 | cout << "creating output for view cell " << i << " ... ";
|
---|
2098 |
|
---|
2099 | VssRayContainer vcRays;
|
---|
2100 | Intersectable::NewMail();
|
---|
2101 | #if 0
|
---|
2102 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
2103 | #else
|
---|
2104 | BspViewCell *vc = dynamic_cast<BspViewCell *>
|
---|
2105 | (mViewCells[Random((int)mViewCells.size())]);
|
---|
2106 | #endif
|
---|
2107 |
|
---|
2108 | #if 1
|
---|
2109 | // check whether we can add the current ray to the output rays
|
---|
2110 | for (int k = 0; k < raysOut; ++ k)
|
---|
2111 | {
|
---|
2112 | BspRay *ray = bspRays[k];
|
---|
2113 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
2114 | {
|
---|
2115 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
2116 | if (vc == leaf->GetViewCell())
|
---|
2117 | vcRays.push_back(ray->vssRay);
|
---|
2118 | }
|
---|
2119 | }
|
---|
2120 | #endif
|
---|
2121 | //bspLeaves[j]->Mail();
|
---|
2122 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
2123 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
2124 | exporter->SetWireframe();
|
---|
2125 |
|
---|
2126 | Material m;//= RandomMaterial();
|
---|
2127 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2128 | exporter->SetForcedMaterial(m);
|
---|
2129 |
|
---|
2130 | ExportVcGeometry(exporter, vc);
|
---|
2131 |
|
---|
2132 |
|
---|
2133 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
2134 | << ", piercing rays=" << (int)vcRays.size()
|
---|
2135 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
2136 |
|
---|
2137 | //-- export rays piercing this view cell
|
---|
2138 | #if 1
|
---|
2139 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
2140 | #endif
|
---|
2141 | #if 0
|
---|
2142 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
2143 |
|
---|
2144 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
2145 | exporter->ExportRays((*lit)->mVssRays);
|
---|
2146 | #endif
|
---|
2147 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2148 | exporter->SetForcedMaterial(m);
|
---|
2149 |
|
---|
2150 | ObjectPvsMap::const_iterator it,
|
---|
2151 | it_end = vc->GetPvs().mEntries.end();
|
---|
2152 |
|
---|
2153 | exporter->SetFilled();
|
---|
2154 |
|
---|
2155 | // output PVS of view cell
|
---|
2156 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
2157 | {
|
---|
2158 | Intersectable *intersect = (*it).first;
|
---|
2159 |
|
---|
2160 | if (!intersect->Mailed())
|
---|
2161 | {
|
---|
2162 | Material m = RandomMaterial();
|
---|
2163 | exporter->SetForcedMaterial(m);
|
---|
2164 |
|
---|
2165 | exporter->ExportIntersectable(intersect);
|
---|
2166 | intersect->Mail();
|
---|
2167 | }
|
---|
2168 | }
|
---|
2169 |
|
---|
2170 | DEL_PTR(exporter);
|
---|
2171 | cout << "finished" << endl;
|
---|
2172 | }
|
---|
2173 |
|
---|
2174 | #if 1
|
---|
2175 | CLEAR_CONTAINER(bspRays);
|
---|
2176 | #endif
|
---|
2177 | Debug << endl;
|
---|
2178 | }
|
---|
2179 |
|
---|
2180 |
|
---|
2181 | bool VspBspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
2182 | {
|
---|
2183 | ViewCell *fvc = front->GetViewCell();
|
---|
2184 | ViewCell *bvc = back->GetViewCell();
|
---|
2185 |
|
---|
2186 | if (fvc == bvc)
|
---|
2187 | return false;
|
---|
2188 |
|
---|
2189 | const int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
2190 |
|
---|
2191 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
2192 | {
|
---|
2193 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
2194 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
2195 | ((fdiff < mMinPvsDif) &&
|
---|
2196 | (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
2197 | {
|
---|
2198 | return true;
|
---|
2199 | }
|
---|
2200 | }
|
---|
2201 |
|
---|
2202 | return false;
|
---|
2203 | }
|
---|
2204 |
|
---|
2205 |
|
---|
2206 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2207 | const Vector3 &termination,
|
---|
2208 | ViewCellContainer &viewcells)
|
---|
2209 | {
|
---|
2210 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
2211 | }
|
---|
2212 |
|
---|
2213 |
|
---|
2214 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
2215 | ViewCell *vc) const
|
---|
2216 | {
|
---|
2217 | if (mColorCode == 0) // Random color
|
---|
2218 | return;
|
---|
2219 |
|
---|
2220 | float importance = 0;
|
---|
2221 |
|
---|
2222 | switch (mColorCode)
|
---|
2223 | {
|
---|
2224 | case 1: // pvs
|
---|
2225 | {
|
---|
2226 | importance = (float)vc->GetPvs().GetSize() /
|
---|
2227 | (float)mViewCellsStats.maxPvs;
|
---|
2228 | }
|
---|
2229 | break;
|
---|
2230 | case 2: // merges
|
---|
2231 | {
|
---|
2232 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2233 |
|
---|
2234 | importance = (float)bspVc->mLeaves.size() /
|
---|
2235 | (float)mViewCellsStats.maxLeaves;
|
---|
2236 | }
|
---|
2237 | break;
|
---|
2238 | case 3: // merge tree differene
|
---|
2239 | {
|
---|
2240 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
2241 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
2242 | }
|
---|
2243 | break;
|
---|
2244 | default:
|
---|
2245 | break;
|
---|
2246 | }
|
---|
2247 |
|
---|
2248 | Material m;
|
---|
2249 | m.mDiffuseColor.b = 1.0f;
|
---|
2250 | m.mDiffuseColor.r = importance;
|
---|
2251 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
2252 | //Debug << "importance: " << importance << endl;
|
---|
2253 | exporter->SetForcedMaterial(m);
|
---|
2254 | }
|
---|
2255 |
|
---|
2256 |
|
---|
2257 | void VspBspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
2258 | ViewCell *vc) const
|
---|
2259 | {
|
---|
2260 | #if 1
|
---|
2261 | BspNodeGeometry geom;
|
---|
2262 | mVspBspTree->
|
---|
2263 | ConstructGeometry(dynamic_cast<BspViewCell *>(vc), geom.mPolys);
|
---|
2264 | exporter->ExportPolygons(geom.mPolys);
|
---|
2265 | #else
|
---|
2266 |
|
---|
2267 | Material m2;
|
---|
2268 | m2.mDiffuseColor.b = 0.3f + Random(0.7f);
|
---|
2269 | m2.mDiffuseColor.r = 0.0f;//0.3f + Random(0.7f);
|
---|
2270 | m2.mDiffuseColor.g = 0.3f + Random(0.7f);
|
---|
2271 | Material m;
|
---|
2272 | m.mDiffuseColor.b = 0.0f;
|
---|
2273 | m.mDiffuseColor.r = 1.0f;
|
---|
2274 | m.mDiffuseColor.g = 0.0f;
|
---|
2275 |
|
---|
2276 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2277 | vector<BspLeaf *>::const_iterator it, it_end = bspVc->mLeaves.end();
|
---|
2278 |
|
---|
2279 | for (it = bspVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
2280 | {
|
---|
2281 | if ((*it)->Mailed())
|
---|
2282 | exporter->SetForcedMaterial(m);
|
---|
2283 | else
|
---|
2284 | exporter->SetForcedMaterial(m2);
|
---|
2285 | //exporter->ResetForcedMaterial();
|
---|
2286 | BspNodeGeometry geom;
|
---|
2287 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
2288 | exporter->ExportPolygons(geom.mPolys);
|
---|
2289 | }
|
---|
2290 | #endif
|
---|
2291 | }
|
---|
2292 |
|
---|
2293 |
|
---|
2294 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
2295 | {
|
---|
2296 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2297 |
|
---|
2298 | int maxDist = 0;
|
---|
2299 | // compute max height difference
|
---|
2300 | for (int i = 0; i < (int)bspVc->mLeaves.size(); ++ i)
|
---|
2301 | for (int j = 0; j < (int)bspVc->mLeaves.size(); ++ j)
|
---|
2302 | {
|
---|
2303 | BspLeaf *leaf = bspVc->mLeaves[i];
|
---|
2304 |
|
---|
2305 | if (i != j)
|
---|
2306 | {
|
---|
2307 | BspLeaf *leaf2 = bspVc->mLeaves[j];
|
---|
2308 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
2309 | if (dist > maxDist)
|
---|
2310 | maxDist = dist;
|
---|
2311 | }
|
---|
2312 | }
|
---|
2313 | return maxDist;
|
---|
2314 | }
|
---|
2315 |
|
---|
2316 |
|
---|
2317 |
|
---|
2318 |
|
---|
2319 | ViewCell *
|
---|
2320 | VspBspViewCellsManager::GetViewCell(const Vector3 &point)
|
---|
2321 | {
|
---|
2322 | if (!mVspBspTree)
|
---|
2323 | return NULL;
|
---|
2324 | return mVspBspTree->GetViewCell(point);
|
---|
2325 | }
|
---|