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 | #include "ViewCellsParser.h"
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14 | #include "Beam.h"
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15 | #include "VssPreprocessor.h"
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16 | #include "RssPreprocessor.h"
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17 |
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18 |
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19 |
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20 | ViewCellsManager::ViewCellsManager():
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21 | mRenderer(NULL),
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22 | mConstructionSamples(0),
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23 | mPostProcessSamples(0),
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24 | mVisualizationSamples(0),
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25 | mTotalAreaValid(false),
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26 | mTotalArea(0.0f),
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27 | mViewCellsFinished(false),
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28 | mMaxPvsSize(9999999),
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29 | mMinPvsSize(0), // one means only empty view cells are invalid
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30 | mMaxPvsRatio(1.0)
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31 | {
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32 | mViewSpaceBox.Initialize();
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33 | ParseEnvironment();
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34 | }
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35 |
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36 |
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37 | ViewCellsManager::ViewCellsManager(int constructionSamples):
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38 | mConstructionSamples(constructionSamples),
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39 | mRenderer(NULL),
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40 | mPostProcessSamples(0),
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41 | mVisualizationSamples(0),
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42 | mTotalAreaValid(false),
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43 | mTotalArea(0.0f),
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44 | mViewCellsFinished(false),
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45 | mMaxPvsSize(9999999),
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46 | mMinPvsSize(0), // one means only empty view cells are invalid
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47 | mMaxPvsRatio(1.0)
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48 | {
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49 | mViewSpaceBox.Initialize();
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50 | ParseEnvironment();
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51 | }
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52 |
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53 |
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54 | void ViewCellsManager::ParseEnvironment()
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55 | {
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56 | // visualization stuff
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57 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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58 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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59 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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60 | bool emptyViewCells = false;
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61 | environment->GetBoolValue("ViewCells.pruneEmptyViewCells", emptyViewCells);
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62 | environment->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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63 |
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64 | mMinPvsSize = emptyViewCells ? 1 : 0;
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65 |
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66 | char buf[50];
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67 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
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68 |
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69 | if (strcmp(buf, "PVS") == 0)
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70 | mColorCode = 1;
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71 | else if (strcmp(buf, "MergedLeaves") == 0)
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72 | mColorCode = 2;
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73 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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74 | mColorCode = 3;
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75 | else
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76 | mColorCode = 0;
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77 |
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78 | Debug << "colorCode: " << mColorCode << endl;
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79 | }
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80 |
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81 |
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82 | ViewCellsManager::~ViewCellsManager()
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83 | {
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84 | DEL_PTR(mRenderer);
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85 | CLEAR_CONTAINER(mViewCells);
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86 | CLEAR_CONTAINER(mMeshContainer);
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87 | }
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88 |
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89 |
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90 | int ViewCellsManager::Construct(VssRayContainer &rays)
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91 | {
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92 | /* VssPreprocessor preprocessor;
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93 |
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94 | VssRayContainer vssRays;
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95 | preprocessor->GenerateVssRays(mConstructionSamples, vssRays);
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96 | Construct(preprocessor->mObjects, vssRays);
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97 |
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98 | // add rays to output rays
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99 | while (!vssRays.empty)
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100 | {
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101 | rays.push_back(vssRays.back());
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102 | vssRays.pop_back();
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103 | }
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104 |
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105 | const int importanceRays = 1000000;
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106 | preprocessor->GenerateVssRays(max(importanceRays, mPostProcessSamples);
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107 |
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108 | PostProcess(preprocesor->mObjects, importanceRays);
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109 | Visualize(preprocessor->mObjects, importanceRays);
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110 |
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111 | // add rays to output rays
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112 | while (!importanceRays.empty)
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113 | {
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114 | rays.push_back(importanceRays.back());
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115 | importanceRays.pop_back();
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116 | }
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117 | */
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118 | return (int)rays.size();
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119 | }
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120 |
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121 |
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122 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
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123 | int minPvsSize,
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124 | int maxPvsSize) const
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125 | {
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126 |
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127 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
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128 | (vc->GetPvs().GetSize() < minPvsSize))
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129 | {
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130 | return false;
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131 | }
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132 |
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133 | return true;
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134 | }
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135 |
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136 |
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137 | void ViewCellsManager::SetValidity(ViewCell *vc,
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138 | int minPvs,
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139 | int maxPvs) const
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140 | {
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141 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
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142 | }
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143 |
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144 | void
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145 | ViewCellsManager::SetValidity(
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146 | int minPvsSize,
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147 | int maxPvsSize) const
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148 | {
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149 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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150 |
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151 | for (it = mViewCells.begin(); it != it_end; ++ it) {
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152 | SetValidity(*it, minPvsSize, maxPvsSize);
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153 | }
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154 | }
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155 |
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156 | void
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157 | ViewCellsManager::SetValidityPercentage(
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158 | const float minValid,
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159 | const float maxValid
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160 | )
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161 | {
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162 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
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163 |
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164 | int start = mViewCells.size()*minValid;
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165 | int end = mViewCells.size()*maxValid;
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166 |
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167 | for (int i=0; i < mViewCells.size(); i++)
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168 | mViewCells[i]->SetValid(i >= start && i <= end);
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169 | }
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170 |
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171 | int
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172 | ViewCellsManager::CountValidViewcells() const
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173 | {
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174 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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175 | int valid = 0;
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176 | for (it = mViewCells.begin(); it != it_end; ++ it) {
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177 | if ((*it)->GetValid())
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178 | valid++;
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179 | }
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180 | return valid;
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181 | }
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182 |
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183 | bool ViewCellsManager::LoadViewCells(const string filename, ObjectContainer *objects)
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184 | {
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185 | X3dParser parser;
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186 |
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187 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
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188 |
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189 | bool success = parser.ParseFile(filename, *this);
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190 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
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191 |
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192 | return success;
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193 | }
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194 |
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195 |
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196 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
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197 | {
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198 | viewPoint = mViewSpaceBox.GetRandomPoint();
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199 |
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200 | return true;
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201 | }
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202 |
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203 |
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204 | float ViewCellsManager::GetViewSpaceVolume()
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205 | {
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206 | return mViewSpaceBox.GetVolume()*(2.0f*sqr(M_PI));
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207 | }
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208 |
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209 |
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210 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
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211 | {
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212 | if (!ViewCellsConstructed())
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213 | return mViewSpaceBox.IsInside(viewPoint);
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214 | else {
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215 | if (!mViewSpaceBox.IsInside(viewPoint))
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216 | return false;
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217 | ViewCell *viewcell = GetViewCell(viewPoint);
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218 | if (!viewcell || !viewcell->GetValid())
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219 | return false;
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220 | }
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221 | return true;
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222 | }
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223 |
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224 |
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225 | float
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226 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
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227 | const bool addRays
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228 | )
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229 | {
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230 | // view cells not yet constructed
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231 | if (!ViewCellsConstructed())
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232 | return 0.0f;
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233 |
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234 | VssRayContainer::const_iterator it, it_end = rays.end();
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235 |
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236 | float sum = 0.0f;
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237 | for (it = rays.begin(); it != it_end; ++ it) {
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238 | sum += ComputeSampleContributions(*(*it), addRays);
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239 | //ComputeSampleContributions(*(*it), addRays);
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240 | // sum += (*it)->mPvsContribution;
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241 | }
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242 | return sum;
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243 | }
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244 |
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245 |
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246 | void ViewCellsManager::EvaluateViewCellsStats()
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247 | {
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248 | mViewCellsStats.Reset();
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249 |
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250 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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251 |
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252 | for (it = mViewCells.begin(); it != it_end; ++ it)
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253 | {
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254 | (*it)->UpdateViewCellsStats(mViewCellsStats);
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255 | }
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256 | }
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257 |
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258 |
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259 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
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260 | {
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261 | mViewCells.push_back(viewCell);
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262 | }
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263 |
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264 |
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265 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
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266 | {
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267 | return viewCell->GetArea();
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268 | }
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269 |
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270 |
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271 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
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272 | {
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273 | return viewCell->GetVolume();
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274 | }
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275 |
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276 |
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277 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
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278 | ViewCellContainer &viewCells,
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279 | const int maxViewCells) const
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280 | {
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281 | // maximal max viewcells
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282 | int limit = maxViewCells > 0 ?
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283 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
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284 |
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285 | for (int i = 0; i < limit; ++ i)
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286 | {
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287 | Intersectable *object = objects[i];
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288 |
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289 | // extract the mesh instances
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290 | if (object->Type() == Intersectable::MESH_INSTANCE)
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291 | {
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292 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
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293 |
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294 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
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295 | viewCells.push_back(viewCell);
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296 | }
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297 | //TODO: transformed meshes
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298 | }
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299 | }
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300 |
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301 |
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302 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
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303 | const float height) const
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304 | {
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305 | // one mesh per view cell
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306 | Mesh *mesh = new Mesh();
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307 |
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308 | //-- construct prism
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309 |
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310 | // bottom
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311 | mesh->mFaces.push_back(new Face(2,1,0));
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312 | // top
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313 | mesh->mFaces.push_back(new Face(3,4,5));
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314 | // sides
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315 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
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316 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
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317 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
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318 |
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319 | //--- extrude new vertices for top of prism
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320 | Vector3 triNorm = baseTri.GetNormal();
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321 |
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322 | Triangle3 topTri;
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323 |
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324 | // add base vertices and calculate top vertices
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325 | for (int i = 0; i < 3; ++ i)
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326 | mesh->mVertices.push_back(baseTri.mVertices[i]);
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327 |
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328 | // add top vertices
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329 | for (int i = 0; i < 3; ++ i)
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330 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
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331 |
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332 | mesh->Preprocess();
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333 |
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334 | return GenerateViewCell(mesh);
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335 | }
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336 |
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337 |
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338 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
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339 | {
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340 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
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341 | for (it = mViewCells.begin(); it != it_end; ++ it)
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342 | {
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343 | Finalize(*it, createMesh);
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344 | }
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345 |
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346 | mTotalAreaValid = false;
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347 | }
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348 |
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349 |
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350 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
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351 | {
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352 | // implemented in subclasses
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353 | }
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354 |
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355 |
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356 | ViewCell *ViewCellsManager::MergeViewCells(ViewCell &front, ViewCell &back) const
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357 | {
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358 | // generate merged view cell
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359 | ViewCell *vc = GenerateViewCell();
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360 |
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361 | // merge pvs
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362 | vc->GetPvs().Merge(front.GetPvs(), back.GetPvs());
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363 |
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364 | //-- merge ray sets
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365 | if (0)
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366 | {
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367 | stable_sort(front.mPiercingRays.begin(), front.mPiercingRays.end());
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368 | stable_sort(back.mPiercingRays.begin(), back.mPiercingRays.end());
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369 |
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370 | std::merge(front.mPiercingRays.begin(), front.mPiercingRays.end(),
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371 | back.mPiercingRays.begin(), back.mPiercingRays.end(),
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372 | vc->mPiercingRays.begin());
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373 | }
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374 |
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375 | return vc;
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376 | }
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377 |
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378 |
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379 | void ViewCellsManager::SetRenderer(Renderer *renderer)
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380 | {
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381 | mRenderer = renderer;
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382 | }
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383 |
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384 |
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385 | ViewCell *ViewCellsManager::GenerateViewCell(Mesh *mesh) const
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386 | {
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387 | return new ViewCell(mesh);
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388 | }
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389 |
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390 |
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391 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
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392 | {
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393 | mVisualizationSamples = visSamples;
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394 | }
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395 |
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396 |
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397 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
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398 | {
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399 | mConstructionSamples = constructionSamples;
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400 | }
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401 |
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402 |
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403 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
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404 | {
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405 | mPostProcessSamples = postProcessSamples;
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406 | }
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407 |
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408 |
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409 | int ViewCellsManager::GetVisualizationSamples() const
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410 | {
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411 | return mVisualizationSamples;
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412 | }
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413 |
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414 |
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415 | int ViewCellsManager::GetConstructionSamples() const
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416 | {
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417 | return mConstructionSamples;
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418 | }
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419 |
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420 |
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421 | int ViewCellsManager::GetPostProcessSamples() const
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422 | {
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423 | return mPostProcessSamples;
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424 | }
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425 |
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426 |
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427 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
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428 | {
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429 | ViewCellContainer::const_iterator it = mViewCells.begin();
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430 | stat.viewcells = 0;
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431 | stat.minPvs = 100000000;
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432 | stat.maxPvs = 0;
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433 | stat.avgPvs = 0.0f;
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434 |
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435 | for (; it != mViewCells.end(); ++it) {
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436 | ViewCell *viewcell = *it;
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437 | int pvsSize = viewcell->GetPvs().GetSize();
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438 | if ( pvsSize < stat.minPvs)
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439 | stat.minPvs = pvsSize;
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440 | if (pvsSize > stat.maxPvs)
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441 | stat.maxPvs = pvsSize;
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442 | stat.avgPvs += pvsSize;
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443 | stat.viewcells++;
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444 | }
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445 | if (stat.viewcells)
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446 | stat.avgPvs/=stat.viewcells;
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447 | }
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448 |
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449 |
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450 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
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451 | {
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452 | s<<"############# Viewcell PVS STAT ##################\n";
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453 | PvsStatistics pvsStat;
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454 | GetPvsStatistics(pvsStat);
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455 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
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456 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
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457 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
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458 | }
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459 |
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460 |
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461 | int ViewCellsManager::CastBeam(Beam &beam)
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462 | {
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463 | return 0;
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464 | }
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465 |
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466 |
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467 | ViewCellContainer &ViewCellsManager::GetViewCells()
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468 | {
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469 | return mViewCells;
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470 | }
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471 |
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472 |
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473 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
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474 | {
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475 | mViewSpaceBox = box;
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476 | }
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477 |
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478 |
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479 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
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480 | {
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481 | return mViewSpaceBox;
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482 | }
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483 |
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484 |
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485 | void ViewCellsManager::ResetViewCells()
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486 | {
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487 | mViewCells.clear();
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488 |
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489 | CollectViewCells();
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490 |
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491 | mViewCellsStats.Reset();
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492 | EvaluateViewCellsStats();
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493 | // has to be recomputed
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494 | mTotalAreaValid = false;
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495 | }
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496 |
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497 |
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498 | int ViewCellsManager::GetMaxPvsSize() const
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499 | {
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500 | return mMaxPvsSize;
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501 | }
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502 |
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503 | void
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504 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
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505 | {
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506 | if (!ViewCellsConstructed())
|
---|
507 | return;
|
---|
508 |
|
---|
509 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
510 |
|
---|
511 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
512 | AddSampleContributions(*(*it));
|
---|
513 | }
|
---|
514 | }
|
---|
515 |
|
---|
516 | int ViewCellsManager::GetMinPvsSize() const
|
---|
517 | {
|
---|
518 | return mMinPvsSize;
|
---|
519 | }
|
---|
520 |
|
---|
521 |
|
---|
522 |
|
---|
523 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
524 | {
|
---|
525 | return mMaxPvsRatio;
|
---|
526 | }
|
---|
527 |
|
---|
528 |
|
---|
529 | void
|
---|
530 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
531 | {
|
---|
532 | // assumes viewcells have been stored...
|
---|
533 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
534 | ViewCellContainer::const_iterator it;
|
---|
535 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
536 | ViewCell *viewcell = *it;
|
---|
537 | if (viewcell->GetValid()) {
|
---|
538 | // if ray not outside of view space
|
---|
539 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
540 | }
|
---|
541 | }
|
---|
542 | }
|
---|
543 |
|
---|
544 | float
|
---|
545 | ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
546 | const bool addRays
|
---|
547 | )
|
---|
548 | {
|
---|
549 | ViewCellContainer viewcells;
|
---|
550 |
|
---|
551 | ray.mPvsContribution = 0;
|
---|
552 | ray.mRelativePvsContribution = 0.0f;
|
---|
553 |
|
---|
554 | static Ray hray;
|
---|
555 | hray.Init(ray);
|
---|
556 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
557 | //Ray hray(ray);
|
---|
558 |
|
---|
559 | float tmin = 0, tmax = 1.0;
|
---|
560 |
|
---|
561 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
562 | return 0;
|
---|
563 |
|
---|
564 | Vector3 origin = hray.Extrap(tmin);
|
---|
565 | Vector3 termination = hray.Extrap(tmax);
|
---|
566 |
|
---|
567 | CastLineSegment(origin, termination, viewcells);
|
---|
568 | //Debug << "constribution: " << (int)viewcells.size() << endl;
|
---|
569 | CastLineSegment(origin, termination, viewcells);
|
---|
570 |
|
---|
571 | //Debug << "constribution: " << (int)viewcells.size() << endl;
|
---|
572 |
|
---|
573 | // copy viewcells memory efficiently
|
---|
574 | const bool storeViewcells = !addRays;
|
---|
575 |
|
---|
576 | if (storeViewcells)
|
---|
577 | {
|
---|
578 | ray.mViewCells.reserve(viewcells.size());
|
---|
579 | ray.mViewCells = viewcells;
|
---|
580 | }
|
---|
581 |
|
---|
582 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
583 |
|
---|
584 |
|
---|
585 | for (; it != viewcells.end(); ++it) {
|
---|
586 | ViewCell *viewcell = *it;
|
---|
587 | if (viewcell->GetValid()) {
|
---|
588 | // if ray not outside of view space
|
---|
589 | float contribution;
|
---|
590 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
591 | ray.mPdf,
|
---|
592 | contribution
|
---|
593 | ))
|
---|
594 | ray.mPvsContribution++;
|
---|
595 | ray.mRelativePvsContribution += contribution;
|
---|
596 | }
|
---|
597 | }
|
---|
598 |
|
---|
599 | if (addRays)
|
---|
600 | for (it = viewcells.begin(); it != viewcells.end(); ++it) {
|
---|
601 | ViewCell *viewcell = *it;
|
---|
602 | if (viewcell->GetValid()) {
|
---|
603 | // if ray not outside of view space
|
---|
604 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
605 | }
|
---|
606 | }
|
---|
607 |
|
---|
608 | return ray.mRelativePvsContribution;
|
---|
609 | }
|
---|
610 |
|
---|
611 |
|
---|
612 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
613 | const int maxSize,
|
---|
614 | VssRayContainer &usedRays,
|
---|
615 | VssRayContainer *savedRays) const
|
---|
616 | {
|
---|
617 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
618 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
619 |
|
---|
620 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
621 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
622 | {
|
---|
623 | if (Random(1.0f) < prop)
|
---|
624 | usedRays.push_back(*it);
|
---|
625 | else if (savedRays)
|
---|
626 | savedRays->push_back(*it);
|
---|
627 | }
|
---|
628 | }
|
---|
629 |
|
---|
630 |
|
---|
631 | float ViewCellsManager::GetAccVcArea()
|
---|
632 | {
|
---|
633 | // if already computed
|
---|
634 | if (mTotalAreaValid)
|
---|
635 | return mTotalArea;
|
---|
636 |
|
---|
637 | mTotalArea = 0;
|
---|
638 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
639 |
|
---|
640 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
641 | {
|
---|
642 | //Debug << "area: " << GetArea(*it);
|
---|
643 | mTotalArea += GetArea(*it);
|
---|
644 | }
|
---|
645 |
|
---|
646 | mTotalAreaValid = true;
|
---|
647 |
|
---|
648 | return mTotalArea;
|
---|
649 | }
|
---|
650 |
|
---|
651 |
|
---|
652 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
653 | {
|
---|
654 | s << mViewCellsStats << endl;
|
---|
655 | }
|
---|
656 |
|
---|
657 |
|
---|
658 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
659 | {
|
---|
660 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
661 | mViewCells[i]->SetId(i);
|
---|
662 | }
|
---|
663 |
|
---|
664 |
|
---|
665 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
666 | {
|
---|
667 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
668 |
|
---|
669 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
670 | {
|
---|
671 | ExportColor(exporter, *it);
|
---|
672 | ExportVcGeometry(exporter, *it);
|
---|
673 | }
|
---|
674 | }
|
---|
675 |
|
---|
676 |
|
---|
677 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
678 | {
|
---|
679 | // convert to meshes
|
---|
680 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
681 |
|
---|
682 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
683 | {
|
---|
684 | if (!(*it)->GetMesh())
|
---|
685 | CreateMesh(*it);
|
---|
686 | }
|
---|
687 | }
|
---|
688 |
|
---|
689 |
|
---|
690 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
691 | {
|
---|
692 | return false;
|
---|
693 | }
|
---|
694 |
|
---|
695 |
|
---|
696 | void ViewCellsManager::ExportViewCell(ViewCell *viewCell, ofstream &stream)
|
---|
697 | {
|
---|
698 | stream << "<ViewCell id=\"" << viewCell->GetId() << "\" ";
|
---|
699 | stream << "pvs=\"";
|
---|
700 |
|
---|
701 | ObjectPvsMap::iterator it, it_end = viewCell->GetPvs().mEntries.end();
|
---|
702 | if(0) // test with empty pvs
|
---|
703 | for (it = viewCell->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
704 | {
|
---|
705 | stream << (*it).first->GetId() << " ";
|
---|
706 | }
|
---|
707 |
|
---|
708 | stream << "\" />" << endl;
|
---|
709 | }
|
---|
710 |
|
---|
711 |
|
---|
712 | /**********************************************************************/
|
---|
713 | /* BspViewCellsManager implementation */
|
---|
714 | /**********************************************************************/
|
---|
715 |
|
---|
716 |
|
---|
717 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree,
|
---|
718 | int constructionSamples):
|
---|
719 | ViewCellsManager(constructionSamples),
|
---|
720 | mBspTree(bspTree)
|
---|
721 | {
|
---|
722 | }
|
---|
723 |
|
---|
724 |
|
---|
725 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
726 | {
|
---|
727 | return mBspTree->GetRoot() != NULL;
|
---|
728 | }
|
---|
729 |
|
---|
730 |
|
---|
731 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
732 | {
|
---|
733 | return new BspViewCell(mesh);
|
---|
734 | }
|
---|
735 |
|
---|
736 |
|
---|
737 | int BspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
738 | const VssRayContainer &rays)
|
---|
739 | {
|
---|
740 | // if view cells were already constructed
|
---|
741 | if (ViewCellsConstructed())
|
---|
742 | return 0;
|
---|
743 |
|
---|
744 | int sampleContributions = 0;
|
---|
745 |
|
---|
746 | // construct view cells using the collected samples
|
---|
747 | RayContainer constructionRays;
|
---|
748 | VssRayContainer savedRays;
|
---|
749 |
|
---|
750 | const int limit = min(mConstructionSamples, (int)rays.size());
|
---|
751 |
|
---|
752 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
753 |
|
---|
754 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
755 |
|
---|
756 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
757 | {
|
---|
758 | if (Random(1.0f) < prop)
|
---|
759 | constructionRays.push_back(new Ray(*(*it)));
|
---|
760 | else
|
---|
761 | savedRays.push_back(*it);
|
---|
762 | }
|
---|
763 |
|
---|
764 | if (mViewCells.empty())
|
---|
765 | {
|
---|
766 | // no view cells loaded
|
---|
767 | mBspTree->Construct(objects, constructionRays);
|
---|
768 | // collect final view cells
|
---|
769 | mBspTree->CollectViewCells(mViewCells);
|
---|
770 | }
|
---|
771 | else
|
---|
772 | {
|
---|
773 | mBspTree->Construct(mViewCells);
|
---|
774 | }
|
---|
775 |
|
---|
776 | // destroy rays created only for construction
|
---|
777 | CLEAR_CONTAINER(constructionRays);
|
---|
778 |
|
---|
779 | Debug << mBspTree->GetStatistics() << endl;
|
---|
780 |
|
---|
781 | //EvaluateViewCellsStats();
|
---|
782 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
783 |
|
---|
784 | // recast rest of the rays
|
---|
785 | ComputeSampleContributions(savedRays);
|
---|
786 |
|
---|
787 |
|
---|
788 | return sampleContributions;
|
---|
789 | }
|
---|
790 |
|
---|
791 |
|
---|
792 | void BspViewCellsManager::CollectViewCells()
|
---|
793 | {
|
---|
794 | mBspTree->CollectViewCells(mViewCells);
|
---|
795 | }
|
---|
796 |
|
---|
797 |
|
---|
798 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
799 | {
|
---|
800 | // compute view cell area as subsititute for probability
|
---|
801 | #if 1
|
---|
802 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
803 | #else
|
---|
804 | return GetArea(viewCell) / GetAccVcArea();
|
---|
805 | #endif
|
---|
806 | }
|
---|
807 |
|
---|
808 |
|
---|
809 | float BspViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
810 | {
|
---|
811 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
812 | }
|
---|
813 |
|
---|
814 |
|
---|
815 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
816 | const Vector3 &termination,
|
---|
817 | ViewCellContainer &viewcells)
|
---|
818 | {
|
---|
819 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
820 | }
|
---|
821 |
|
---|
822 |
|
---|
823 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
824 | const VssRayContainer &rays)
|
---|
825 | {
|
---|
826 | if (!ViewCellsConstructed())
|
---|
827 | {
|
---|
828 | Debug << "view cells not constructed" << endl;
|
---|
829 | return 0;
|
---|
830 | }
|
---|
831 |
|
---|
832 | //-- post processing of bsp view cells
|
---|
833 | int vcSize = 0;
|
---|
834 | int pvsSize = 0;
|
---|
835 |
|
---|
836 | EvaluateViewCellsStats();
|
---|
837 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl;
|
---|
838 |
|
---|
839 | mRenderer->RenderScene();
|
---|
840 | SimulationStatistics ss;
|
---|
841 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
842 |
|
---|
843 | Debug << ss << endl;
|
---|
844 |
|
---|
845 | if (1) // export view cells
|
---|
846 | {
|
---|
847 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
848 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
849 |
|
---|
850 | if (exporter)
|
---|
851 | {
|
---|
852 | //exporter->SetWireframe();
|
---|
853 | exporter->SetFilled();
|
---|
854 | ExportViewCellsForViz(exporter);
|
---|
855 |
|
---|
856 | if (mExportGeometry)
|
---|
857 | {
|
---|
858 | Material m;
|
---|
859 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
860 | exporter->SetForcedMaterial(m);
|
---|
861 | exporter->SetWireframe();
|
---|
862 |
|
---|
863 | exporter->ExportGeometry(objects);
|
---|
864 | }
|
---|
865 |
|
---|
866 | delete exporter;
|
---|
867 | }
|
---|
868 | cout << "finished" << endl;
|
---|
869 | }
|
---|
870 |
|
---|
871 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
872 |
|
---|
873 | long startTime = GetTime();
|
---|
874 |
|
---|
875 |
|
---|
876 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
877 | // perhaps we could recast the rays or remember the cells traversed inside the
|
---|
878 | // vssray (which would on other hand create some overhead)
|
---|
879 | //-- merge or subdivide view cells
|
---|
880 | int merged = 0;
|
---|
881 |
|
---|
882 | vector<BspIntersection>::const_iterator iit;
|
---|
883 | CLEAR_CONTAINER(mBspRays);
|
---|
884 | ConstructBspRays(rays, mPostProcessSamples);
|
---|
885 |
|
---|
886 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
887 | {
|
---|
888 | BspRay *ray = mBspRays[i];
|
---|
889 |
|
---|
890 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
891 | // leaves (i.e., the neighbors in the tree)
|
---|
892 | if (ray->intersections.size() < 2)
|
---|
893 | continue;
|
---|
894 | #if 0
|
---|
895 | iit = ray->intersections.begin();
|
---|
896 |
|
---|
897 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
898 | ++ iit;
|
---|
899 |
|
---|
900 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
901 | {
|
---|
902 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
903 |
|
---|
904 | if (ShouldMerge(leaf, previousLeaf))
|
---|
905 | {
|
---|
906 | MergeBspLeafViewCells(leaf, previousLeaf);
|
---|
907 |
|
---|
908 | ++ merged;
|
---|
909 | }
|
---|
910 |
|
---|
911 | previousLeaf = leaf;
|
---|
912 | }
|
---|
913 | #endif
|
---|
914 | }
|
---|
915 |
|
---|
916 | //-- stats and visualizations
|
---|
917 | cout << "finished" << endl;
|
---|
918 | cout << "merged " << merged << " view cells in "
|
---|
919 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
920 |
|
---|
921 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
922 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs"
|
---|
923 | << "using " << (int)mBspRays.size() << " samples" << endl << endl;
|
---|
924 |
|
---|
925 | CLEAR_CONTAINER(mBspRays);
|
---|
926 |
|
---|
927 | // reset view cells and stats
|
---|
928 | ResetViewCells();
|
---|
929 |
|
---|
930 | return merged;
|
---|
931 | }
|
---|
932 |
|
---|
933 |
|
---|
934 | BspViewCellsManager::~BspViewCellsManager()
|
---|
935 | {
|
---|
936 | CLEAR_CONTAINER(mBspRays);
|
---|
937 | }
|
---|
938 |
|
---|
939 |
|
---|
940 | int BspViewCellsManager::GetType() const
|
---|
941 | {
|
---|
942 | return BSP;
|
---|
943 | }
|
---|
944 |
|
---|
945 |
|
---|
946 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
947 | const VssRayContainer &sampleRays)
|
---|
948 | {
|
---|
949 | if (!ViewCellsConstructed())
|
---|
950 | return;
|
---|
951 | CLEAR_CONTAINER(mBspRays);
|
---|
952 | ConstructBspRays(sampleRays, mVisualizationSamples);
|
---|
953 |
|
---|
954 | if (1) // export view cells
|
---|
955 | {
|
---|
956 | cout << "exporting view cells after merge ... ";
|
---|
957 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
958 |
|
---|
959 |
|
---|
960 | if (exporter)
|
---|
961 | {
|
---|
962 | ExportViewCellsForViz(exporter);
|
---|
963 | delete exporter;
|
---|
964 | }
|
---|
965 |
|
---|
966 | cout << "finished" << endl;
|
---|
967 | }
|
---|
968 |
|
---|
969 | //-- visualization of the BSP splits
|
---|
970 | bool exportSplits = false;
|
---|
971 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
972 |
|
---|
973 | if (exportSplits)
|
---|
974 | {
|
---|
975 | cout << "exporting splits ... ";
|
---|
976 | ExportSplits(objects);
|
---|
977 | cout << "finished" << endl;
|
---|
978 | }
|
---|
979 |
|
---|
980 | ExportBspPvs(objects);
|
---|
981 | }
|
---|
982 |
|
---|
983 |
|
---|
984 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
985 | {
|
---|
986 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
987 | }
|
---|
988 |
|
---|
989 |
|
---|
990 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
991 | {
|
---|
992 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
993 |
|
---|
994 | if (exporter)
|
---|
995 | {
|
---|
996 | Material m;
|
---|
997 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
998 | exporter->SetForcedMaterial(m);
|
---|
999 | exporter->SetWireframe();
|
---|
1000 |
|
---|
1001 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
1002 |
|
---|
1003 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
1004 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1005 | exporter->SetForcedMaterial(m);
|
---|
1006 | //exporter->ResetForcedMaterial();
|
---|
1007 |
|
---|
1008 | exporter->SetFilled();
|
---|
1009 |
|
---|
1010 | // export rays
|
---|
1011 | if (0)
|
---|
1012 | {
|
---|
1013 | VssRayContainer outRays;
|
---|
1014 |
|
---|
1015 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1016 |
|
---|
1017 | for (int i = 0; i < raysSize; ++ i)
|
---|
1018 | // only rays piercing geometry
|
---|
1019 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
1020 |
|
---|
1021 | // export rays
|
---|
1022 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
1023 | }
|
---|
1024 |
|
---|
1025 | if (mExportGeometry)
|
---|
1026 | exporter->ExportGeometry(objects);
|
---|
1027 |
|
---|
1028 | delete exporter;
|
---|
1029 | }
|
---|
1030 | }
|
---|
1031 |
|
---|
1032 |
|
---|
1033 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
1034 | {
|
---|
1035 | const int leafOut = 10;
|
---|
1036 |
|
---|
1037 | ViewCell::NewMail();
|
---|
1038 |
|
---|
1039 | //-- some rays for output
|
---|
1040 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1041 |
|
---|
1042 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
1043 | Debug << "\nOutput view cells: " << endl;
|
---|
1044 |
|
---|
1045 | // sort view cells to get largest view cells
|
---|
1046 | #if 0
|
---|
1047 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
1048 | #endif
|
---|
1049 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
1050 |
|
---|
1051 | for (int i = 0; i < limit; ++ i)
|
---|
1052 | {
|
---|
1053 | cout << "creating output for view cell " << i << " ... ";
|
---|
1054 | VssRayContainer vcRays;
|
---|
1055 | Intersectable::NewMail();
|
---|
1056 | #if 0
|
---|
1057 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
1058 | #else
|
---|
1059 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[Random((int)mViewCells.size())]);
|
---|
1060 | #endif
|
---|
1061 | cout << "creating output for view cell " << i << " ... ";
|
---|
1062 |
|
---|
1063 | #if 0
|
---|
1064 | // check whether we can add the current ray to the output rays
|
---|
1065 | for (int k = 0; k < raysOut; ++ k)
|
---|
1066 | {
|
---|
1067 | BspRay *ray = mBspRays[k];
|
---|
1068 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
1069 | {
|
---|
1070 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
1071 | if (vc == leaf->GetViewCell())
|
---|
1072 | vcRays.push_back(ray->vssRay);
|
---|
1073 | }
|
---|
1074 | }
|
---|
1075 | #endif
|
---|
1076 | //bspLeaves[j]->Mail();
|
---|
1077 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1078 |
|
---|
1079 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1080 |
|
---|
1081 | exporter->SetWireframe();
|
---|
1082 |
|
---|
1083 | Material m;//= RandomMaterial();
|
---|
1084 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1085 | exporter->SetForcedMaterial(m);
|
---|
1086 |
|
---|
1087 | if (vc->GetMesh())
|
---|
1088 | exporter->ExportViewCell(vc);
|
---|
1089 | else
|
---|
1090 | {
|
---|
1091 | BspNodeGeometry vcGeom;
|
---|
1092 |
|
---|
1093 | //-- export view cell
|
---|
1094 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
1095 | exporter->ExportPolygons(vcGeom.mPolys);
|
---|
1096 | }
|
---|
1097 |
|
---|
1098 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1099 | << ", piercing rays=" << (int)vcRays.size()
|
---|
1100 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
1101 |
|
---|
1102 |
|
---|
1103 | // export rays piercing this view cell
|
---|
1104 | #if 0
|
---|
1105 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
1106 | #else
|
---|
1107 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
1108 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
1109 | exporter->ExportRays((*lit)->mVssRays);
|
---|
1110 | #endif
|
---|
1111 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1112 | exporter->SetForcedMaterial(m);
|
---|
1113 |
|
---|
1114 | ObjectPvsMap::const_iterator it,
|
---|
1115 | it_end = vc->GetPvs().mEntries.end();
|
---|
1116 |
|
---|
1117 | exporter->SetFilled();
|
---|
1118 |
|
---|
1119 | // output PVS of view cell
|
---|
1120 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1121 | {
|
---|
1122 | Intersectable *intersect = (*it).first;
|
---|
1123 |
|
---|
1124 | if (!intersect->Mailed())
|
---|
1125 | {
|
---|
1126 | Material m = RandomMaterial();
|
---|
1127 | exporter->SetForcedMaterial(m);
|
---|
1128 |
|
---|
1129 | exporter->ExportIntersectable(intersect);
|
---|
1130 | intersect->Mail();
|
---|
1131 | }
|
---|
1132 | }
|
---|
1133 |
|
---|
1134 | DEL_PTR(exporter);
|
---|
1135 | cout << "finished" << endl;
|
---|
1136 | }
|
---|
1137 |
|
---|
1138 | Debug << endl;
|
---|
1139 | }
|
---|
1140 |
|
---|
1141 |
|
---|
1142 |
|
---|
1143 | void BspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
1144 | const int numSamples)
|
---|
1145 | {
|
---|
1146 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
1147 |
|
---|
1148 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
1149 | {
|
---|
1150 | VssRay *vssRay = *it;
|
---|
1151 | BspRay *ray = new BspRay(vssRay);
|
---|
1152 |
|
---|
1153 | ViewCellContainer viewCells;
|
---|
1154 |
|
---|
1155 | // cast line segment to get intersections with bsp leaves
|
---|
1156 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
1157 |
|
---|
1158 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
1159 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
1160 | {
|
---|
1161 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
1162 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
1163 | }
|
---|
1164 |
|
---|
1165 | mBspRays.push_back(ray);
|
---|
1166 | }
|
---|
1167 | }
|
---|
1168 |
|
---|
1169 |
|
---|
1170 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1171 | ViewCell *vc) const
|
---|
1172 | {
|
---|
1173 | if (mColorCode == 0) // Random color
|
---|
1174 | {
|
---|
1175 | exporter->ResetForcedMaterial();
|
---|
1176 | return;
|
---|
1177 | }
|
---|
1178 |
|
---|
1179 | float importance = 0;
|
---|
1180 |
|
---|
1181 | switch (mColorCode)
|
---|
1182 | {
|
---|
1183 | case 1: // pvs
|
---|
1184 | {
|
---|
1185 | importance = (float)vc->GetPvs().GetSize() /
|
---|
1186 | (float)mViewCellsStats.maxPvs;
|
---|
1187 | }
|
---|
1188 | break;
|
---|
1189 | case 2: // merges
|
---|
1190 | {
|
---|
1191 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
1192 |
|
---|
1193 | importance = (float)bspVc->mLeaves.size() /
|
---|
1194 | (float)mViewCellsStats.maxLeaves;
|
---|
1195 | }
|
---|
1196 | break;
|
---|
1197 | case 3: // merge tree differene
|
---|
1198 | {
|
---|
1199 | // TODO
|
---|
1200 | }
|
---|
1201 | break;
|
---|
1202 | default:
|
---|
1203 | break;
|
---|
1204 | }
|
---|
1205 |
|
---|
1206 | Material m;
|
---|
1207 | m.mDiffuseColor.b = 1.0f;
|
---|
1208 | m.mDiffuseColor.r = importance;
|
---|
1209 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1210 |
|
---|
1211 | exporter->SetForcedMaterial(m);
|
---|
1212 | }
|
---|
1213 |
|
---|
1214 | void BspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1215 | ViewCell *vc) const
|
---|
1216 | {
|
---|
1217 | if (vc->GetMesh())
|
---|
1218 | exporter->ExportViewCell(vc);
|
---|
1219 | else
|
---|
1220 | {
|
---|
1221 | BspNodeGeometry geom;
|
---|
1222 | mBspTree->ConstructGeometry(
|
---|
1223 | dynamic_cast<BspViewCell *>(vc), geom);
|
---|
1224 | exporter->ExportPolygons(geom.mPolys);
|
---|
1225 | }
|
---|
1226 | }
|
---|
1227 |
|
---|
1228 |
|
---|
1229 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1230 | {
|
---|
1231 | // TODO
|
---|
1232 | }
|
---|
1233 |
|
---|
1234 |
|
---|
1235 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
1236 | {
|
---|
1237 | if (!mBspTree)
|
---|
1238 | return NULL;
|
---|
1239 | return mBspTree->GetViewCell(point);
|
---|
1240 | }
|
---|
1241 |
|
---|
1242 | /**********************************************************************/
|
---|
1243 | /* KdViewCellsManager implementation */
|
---|
1244 | /**********************************************************************/
|
---|
1245 |
|
---|
1246 |
|
---|
1247 |
|
---|
1248 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
1249 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
1250 | {
|
---|
1251 | }
|
---|
1252 |
|
---|
1253 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1254 | {
|
---|
1255 | // compute view cell area / volume as subsititute for probability
|
---|
1256 | #if 0
|
---|
1257 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
1258 | #endif
|
---|
1259 | #if 1
|
---|
1260 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1261 | #endif
|
---|
1262 | #if 0
|
---|
1263 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
1264 | #endif
|
---|
1265 | }
|
---|
1266 |
|
---|
1267 |
|
---|
1268 | float KdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1269 | {
|
---|
1270 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1271 | }
|
---|
1272 |
|
---|
1273 |
|
---|
1274 | void KdViewCellsManager::CollectViewCells()
|
---|
1275 | {
|
---|
1276 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
1277 | }
|
---|
1278 |
|
---|
1279 |
|
---|
1280 | int KdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1281 | const VssRayContainer &rays)
|
---|
1282 | {
|
---|
1283 | // if view cells already constructed
|
---|
1284 | if (ViewCellsConstructed())
|
---|
1285 | return 0;
|
---|
1286 |
|
---|
1287 | mKdTree->Construct();
|
---|
1288 |
|
---|
1289 | mTotalAreaValid = false;
|
---|
1290 | // create the view cells
|
---|
1291 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
1292 |
|
---|
1293 | // cast rays
|
---|
1294 | ComputeSampleContributions(rays);
|
---|
1295 |
|
---|
1296 | EvaluateViewCellsStats();
|
---|
1297 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1298 |
|
---|
1299 | return 0;
|
---|
1300 | }
|
---|
1301 |
|
---|
1302 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
1303 | {
|
---|
1304 | return mKdTree->GetRoot() != NULL;
|
---|
1305 | }
|
---|
1306 |
|
---|
1307 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1308 | const VssRayContainer &rays)
|
---|
1309 | {
|
---|
1310 | return 0;
|
---|
1311 | }
|
---|
1312 |
|
---|
1313 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1314 | const VssRayContainer &sampleRays)
|
---|
1315 | {
|
---|
1316 | if (!ViewCellsConstructed())
|
---|
1317 | return;
|
---|
1318 |
|
---|
1319 | // using view cells instead of the kd PVS of objects
|
---|
1320 | const bool useViewCells = true;
|
---|
1321 | bool exportRays = false;
|
---|
1322 |
|
---|
1323 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
1324 | const int pvsOut = min((int)objects.size(), 10);
|
---|
1325 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
1326 |
|
---|
1327 | if (useViewCells)
|
---|
1328 | {
|
---|
1329 | const int leafOut = 10;
|
---|
1330 |
|
---|
1331 | ViewCell::NewMail();
|
---|
1332 |
|
---|
1333 | //-- some rays for output
|
---|
1334 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1335 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
1336 |
|
---|
1337 | //-- some random view cells and rays for output
|
---|
1338 | vector<KdLeaf *> kdLeaves;
|
---|
1339 |
|
---|
1340 | for (int i = 0; i < leafOut; ++ i)
|
---|
1341 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
1342 |
|
---|
1343 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
1344 | {
|
---|
1345 | KdLeaf *leaf = kdLeaves[i];
|
---|
1346 | RayContainer vcRays;
|
---|
1347 |
|
---|
1348 | cout << "creating output for view cell " << i << " ... ";
|
---|
1349 | #if 0
|
---|
1350 | // check whether we can add the current ray to the output rays
|
---|
1351 | for (int k = 0; k < raysOut; ++ k)
|
---|
1352 | {
|
---|
1353 | Ray *ray = sampleRays[k];
|
---|
1354 |
|
---|
1355 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1356 | {
|
---|
1357 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
1358 |
|
---|
1359 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
1360 | {
|
---|
1361 | vcRays.push_back(ray);
|
---|
1362 | }
|
---|
1363 | }
|
---|
1364 | }
|
---|
1365 | #endif
|
---|
1366 | Intersectable::NewMail();
|
---|
1367 |
|
---|
1368 | ViewCell *vc = leaf->mViewCell;
|
---|
1369 |
|
---|
1370 | //bspLeaves[j]->Mail();
|
---|
1371 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
1372 |
|
---|
1373 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1374 | exporter->SetFilled();
|
---|
1375 |
|
---|
1376 | exporter->SetWireframe();
|
---|
1377 | //exporter->SetFilled();
|
---|
1378 |
|
---|
1379 | Material m;//= RandomMaterial();
|
---|
1380 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
1381 | exporter->SetForcedMaterial(m);
|
---|
1382 |
|
---|
1383 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
1384 | exporter->ExportBox(box);
|
---|
1385 |
|
---|
1386 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1387 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1388 |
|
---|
1389 | // export rays piercing this view cell
|
---|
1390 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
1391 |
|
---|
1392 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1393 | exporter->SetForcedMaterial(m);
|
---|
1394 |
|
---|
1395 | // exporter->SetWireframe();
|
---|
1396 | exporter->SetFilled();
|
---|
1397 |
|
---|
1398 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
1399 | // output PVS of view cell
|
---|
1400 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1401 | {
|
---|
1402 | Intersectable *intersect = (*it).first;
|
---|
1403 | if (!intersect->Mailed())
|
---|
1404 | {
|
---|
1405 | exporter->ExportIntersectable(intersect);
|
---|
1406 | intersect->Mail();
|
---|
1407 | }
|
---|
1408 | }
|
---|
1409 |
|
---|
1410 | DEL_PTR(exporter);
|
---|
1411 | cout << "finished" << endl;
|
---|
1412 | }
|
---|
1413 |
|
---|
1414 | DEL_PTR(rays);
|
---|
1415 | }
|
---|
1416 | else // using kd PVS of objects
|
---|
1417 | {
|
---|
1418 | for (int i = 0; i < limit; ++ i)
|
---|
1419 | {
|
---|
1420 | VssRay *ray = sampleRays[i];
|
---|
1421 |
|
---|
1422 | // check whether we can add this to the rays
|
---|
1423 | for (int j = 0; j < pvsOut; j++)
|
---|
1424 | {
|
---|
1425 | if (objects[j] == ray->mTerminationObject)
|
---|
1426 | {
|
---|
1427 | rays[j].push_back(ray);
|
---|
1428 | }
|
---|
1429 | }
|
---|
1430 | }
|
---|
1431 |
|
---|
1432 | if (exportRays)
|
---|
1433 | {
|
---|
1434 | Exporter *exporter = NULL;
|
---|
1435 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
1436 | exporter->SetWireframe();
|
---|
1437 | exporter->ExportKdTree(*mKdTree);
|
---|
1438 |
|
---|
1439 | for (i=0; i < pvsOut; i++)
|
---|
1440 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
1441 |
|
---|
1442 | exporter->SetFilled();
|
---|
1443 |
|
---|
1444 | delete exporter;
|
---|
1445 | }
|
---|
1446 |
|
---|
1447 | for (int k=0; k < pvsOut; k++)
|
---|
1448 | {
|
---|
1449 | Intersectable *object = objects[k];
|
---|
1450 | char s[64];
|
---|
1451 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
1452 |
|
---|
1453 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1454 | exporter->SetWireframe();
|
---|
1455 |
|
---|
1456 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
1457 | Intersectable::NewMail();
|
---|
1458 |
|
---|
1459 | // avoid adding the object to the list
|
---|
1460 | object->Mail();
|
---|
1461 | ObjectContainer visibleObjects;
|
---|
1462 |
|
---|
1463 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
1464 | {
|
---|
1465 | KdNode *node = (*i).first;
|
---|
1466 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
1467 |
|
---|
1468 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
1469 | }
|
---|
1470 |
|
---|
1471 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
1472 | exporter->SetFilled();
|
---|
1473 |
|
---|
1474 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
1475 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
1476 |
|
---|
1477 | Material m;
|
---|
1478 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1479 | exporter->SetForcedMaterial(m);
|
---|
1480 | exporter->ExportIntersectable(object);
|
---|
1481 |
|
---|
1482 | delete exporter;
|
---|
1483 | }
|
---|
1484 | }
|
---|
1485 | }
|
---|
1486 |
|
---|
1487 |
|
---|
1488 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1489 | ViewCell *vc) const
|
---|
1490 | {
|
---|
1491 | // TODO
|
---|
1492 | }
|
---|
1493 |
|
---|
1494 |
|
---|
1495 | void KdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1496 | ViewCell *vc) const
|
---|
1497 | {
|
---|
1498 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(vc);
|
---|
1499 | vector<KdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
1500 |
|
---|
1501 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1502 | exporter->ExportBox(mKdTree->GetBox(*it));
|
---|
1503 | }
|
---|
1504 |
|
---|
1505 |
|
---|
1506 | int KdViewCellsManager::GetType() const
|
---|
1507 | {
|
---|
1508 | return ViewCellsManager::KD;
|
---|
1509 | }
|
---|
1510 |
|
---|
1511 |
|
---|
1512 |
|
---|
1513 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
1514 | {
|
---|
1515 | KdNode *node = leaf;
|
---|
1516 |
|
---|
1517 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
1518 | node = node->mParent;
|
---|
1519 | return node;
|
---|
1520 | }
|
---|
1521 |
|
---|
1522 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1523 | const Vector3 &termination,
|
---|
1524 | ViewCellContainer &viewcells)
|
---|
1525 | {
|
---|
1526 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1527 | }
|
---|
1528 |
|
---|
1529 |
|
---|
1530 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1531 | {
|
---|
1532 | // TODO
|
---|
1533 | }
|
---|
1534 |
|
---|
1535 | /**********************************************************************/
|
---|
1536 | /* VspKdViewCellsManager implementation */
|
---|
1537 | /**********************************************************************/
|
---|
1538 |
|
---|
1539 |
|
---|
1540 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree,
|
---|
1541 | int constructionSamples):
|
---|
1542 | ViewCellsManager(constructionSamples),
|
---|
1543 | mVspKdTree(vspKdTree)
|
---|
1544 | {
|
---|
1545 | mVspKdTree->SetViewCellsManager(this);
|
---|
1546 | }
|
---|
1547 |
|
---|
1548 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1549 | {
|
---|
1550 | // volume or area substitutes for view point probability
|
---|
1551 | #if 0
|
---|
1552 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
1553 | #else
|
---|
1554 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1555 | #endif
|
---|
1556 | }
|
---|
1557 |
|
---|
1558 |
|
---|
1559 | float VspKdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1560 | {
|
---|
1561 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1562 | }
|
---|
1563 |
|
---|
1564 |
|
---|
1565 | void VspKdViewCellsManager::CollectViewCells()
|
---|
1566 | {
|
---|
1567 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
1568 | }
|
---|
1569 |
|
---|
1570 | int VspKdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1571 | const VssRayContainer &rays)
|
---|
1572 | {
|
---|
1573 | // if view cells already constructed
|
---|
1574 | if (ViewCellsConstructed())
|
---|
1575 | return 0;
|
---|
1576 |
|
---|
1577 | VssRayContainer constructionRays;
|
---|
1578 | VssRayContainer savedRays;
|
---|
1579 |
|
---|
1580 | GetRaySets(rays,
|
---|
1581 | mConstructionSamples,
|
---|
1582 | constructionRays,
|
---|
1583 | &savedRays);
|
---|
1584 |
|
---|
1585 | Debug << "constructing vsp kd tree using "
|
---|
1586 | << (int)constructionRays.size() << " samples" << endl;
|
---|
1587 |
|
---|
1588 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
1589 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
1590 |
|
---|
1591 | // export leaf building blocks
|
---|
1592 | ExportLeaves(objects, rays);
|
---|
1593 |
|
---|
1594 | // finally merge kd leaf building blocks to view cells
|
---|
1595 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
1596 |
|
---|
1597 | // collapse siblings belonging to the same view cell
|
---|
1598 | mVspKdTree->RefineViewCells(rays);
|
---|
1599 |
|
---|
1600 | // collapse siblings belonging to the same view cell
|
---|
1601 | mVspKdTree->CollapseTree();
|
---|
1602 |
|
---|
1603 | // evaluale view cell stats
|
---|
1604 | ResetViewCells();
|
---|
1605 |
|
---|
1606 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1607 |
|
---|
1608 | long startTime = GetTime();
|
---|
1609 | // recast rest of rays
|
---|
1610 | ComputeSampleContributions(savedRays);
|
---|
1611 |
|
---|
1612 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
1613 | << " secs" << endl;
|
---|
1614 |
|
---|
1615 | return merged;
|
---|
1616 | }
|
---|
1617 |
|
---|
1618 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
1619 | {
|
---|
1620 | return mVspKdTree->GetRoot() != NULL;
|
---|
1621 | }
|
---|
1622 |
|
---|
1623 |
|
---|
1624 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1625 | {
|
---|
1626 | return new VspKdViewCell(mesh);
|
---|
1627 | }
|
---|
1628 |
|
---|
1629 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1630 | const VssRayContainer &rays)
|
---|
1631 | {
|
---|
1632 | if (!ViewCellsConstructed())
|
---|
1633 | return 0;
|
---|
1634 |
|
---|
1635 | // recalculate stats
|
---|
1636 | EvaluateViewCellsStats();
|
---|
1637 |
|
---|
1638 | return 0;
|
---|
1639 | }
|
---|
1640 |
|
---|
1641 |
|
---|
1642 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
1643 | const VssRayContainer &sampleRays)
|
---|
1644 | {
|
---|
1645 | if (!ViewCellsConstructed())
|
---|
1646 | return;
|
---|
1647 |
|
---|
1648 | //-- export leaf building blocks
|
---|
1649 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
1650 | if (!exporter)
|
---|
1651 | return;
|
---|
1652 |
|
---|
1653 | //exporter->SetWireframe();
|
---|
1654 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
1655 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
1656 |
|
---|
1657 | if (mExportGeometry)
|
---|
1658 | exporter->ExportGeometry(objects);
|
---|
1659 |
|
---|
1660 | if (mExportRays)
|
---|
1661 | {
|
---|
1662 | const float prob = (float)mVisualizationSamples
|
---|
1663 | / ((float)sampleRays.size() + Limits::Small);
|
---|
1664 |
|
---|
1665 | exporter->SetWireframe();
|
---|
1666 |
|
---|
1667 | //-- collect uniformly distributed rays
|
---|
1668 | VssRayContainer rays;
|
---|
1669 |
|
---|
1670 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1671 | {
|
---|
1672 | if (RandomValue(0,1) < prob)
|
---|
1673 | rays.push_back(sampleRays[i]);
|
---|
1674 | }
|
---|
1675 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1676 | }
|
---|
1677 |
|
---|
1678 | delete exporter;
|
---|
1679 | }
|
---|
1680 |
|
---|
1681 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1682 | const VssRayContainer &sampleRays)
|
---|
1683 | {
|
---|
1684 | if (!ViewCellsConstructed())
|
---|
1685 | return;
|
---|
1686 |
|
---|
1687 | //-- export single view cells
|
---|
1688 | for (int i = 0; i < 10; ++ i)
|
---|
1689 | {
|
---|
1690 | char s[64];
|
---|
1691 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
1692 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1693 | const int idx =
|
---|
1694 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
1695 |
|
---|
1696 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
1697 |
|
---|
1698 | cout << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
1699 | Debug << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
1700 | //-- export geometry
|
---|
1701 | Material m;
|
---|
1702 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1703 |
|
---|
1704 | exporter->SetForcedMaterial(m);
|
---|
1705 | exporter->SetWireframe();
|
---|
1706 |
|
---|
1707 | ExportVcGeometry(exporter, vc);
|
---|
1708 |
|
---|
1709 | //-- export stored rays
|
---|
1710 | if (mExportRays)
|
---|
1711 | {
|
---|
1712 | vector<VspKdLeaf *>::const_iterator it,
|
---|
1713 | it_end = vc->mLeaves.end();
|
---|
1714 |
|
---|
1715 | for (it = vc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1716 | {
|
---|
1717 | VspKdLeaf *leaf = *it;
|
---|
1718 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
1719 |
|
---|
1720 | VssRayContainer vssRays;
|
---|
1721 |
|
---|
1722 | VssRayContainer castRays;
|
---|
1723 | VssRayContainer initRays;
|
---|
1724 |
|
---|
1725 | leaf->GetRays(vssRays);
|
---|
1726 |
|
---|
1727 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
1728 | const float prop = 200.0f / (float)vssRays.size();
|
---|
1729 |
|
---|
1730 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
1731 | {
|
---|
1732 | if (Random(1) < prop)
|
---|
1733 | if ((*it)->mTerminationObject == NULL)
|
---|
1734 | castRays.push_back(*it);
|
---|
1735 | else
|
---|
1736 | initRays.push_back(*it);
|
---|
1737 | }
|
---|
1738 |
|
---|
1739 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
1740 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
1741 | }
|
---|
1742 | }
|
---|
1743 |
|
---|
1744 | //-- output PVS of view cell
|
---|
1745 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1746 | exporter->SetForcedMaterial(m);
|
---|
1747 |
|
---|
1748 | Intersectable::NewMail();
|
---|
1749 |
|
---|
1750 | ObjectPvsMap::const_iterator it,
|
---|
1751 | it_end = vc->GetPvs().mEntries.end();
|
---|
1752 |
|
---|
1753 | exporter->SetFilled();
|
---|
1754 |
|
---|
1755 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1756 | {
|
---|
1757 | Intersectable *intersect = (*it).first;
|
---|
1758 |
|
---|
1759 | if (!intersect->Mailed())
|
---|
1760 | {
|
---|
1761 | Material m = RandomMaterial();
|
---|
1762 | exporter->SetForcedMaterial(m);
|
---|
1763 |
|
---|
1764 | exporter->ExportIntersectable(intersect);
|
---|
1765 | intersect->Mail();
|
---|
1766 | }
|
---|
1767 | }
|
---|
1768 |
|
---|
1769 | delete exporter;
|
---|
1770 | }
|
---|
1771 |
|
---|
1772 | //-- export final view cells
|
---|
1773 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
1774 |
|
---|
1775 | //if (exportGeometry) exporter->SetWireframe();
|
---|
1776 | //else exporter->SetFilled();
|
---|
1777 |
|
---|
1778 | ExportViewCellsForViz(exporter);
|
---|
1779 |
|
---|
1780 | if (mExportGeometry)
|
---|
1781 | {
|
---|
1782 | exporter->SetFilled();
|
---|
1783 | exporter->ExportGeometry(objects);
|
---|
1784 | }
|
---|
1785 |
|
---|
1786 | if (mExportRays)
|
---|
1787 | {
|
---|
1788 | const float prob = (float)mVisualizationSamples
|
---|
1789 | / ((float)sampleRays.size() + Limits::Small);
|
---|
1790 |
|
---|
1791 | exporter->SetWireframe();
|
---|
1792 |
|
---|
1793 | VssRayContainer rays;
|
---|
1794 |
|
---|
1795 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1796 | {
|
---|
1797 | if (RandomValue(0,1) < prob)
|
---|
1798 | rays.push_back(sampleRays[i]);
|
---|
1799 | }
|
---|
1800 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1801 | }
|
---|
1802 |
|
---|
1803 | delete exporter;
|
---|
1804 | }
|
---|
1805 |
|
---|
1806 | int VspKdViewCellsManager::GetType() const
|
---|
1807 | {
|
---|
1808 | return VSP_KD;
|
---|
1809 | }
|
---|
1810 |
|
---|
1811 |
|
---|
1812 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1813 | const Vector3 &termination,
|
---|
1814 | ViewCellContainer &viewcells)
|
---|
1815 | {
|
---|
1816 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1817 | }
|
---|
1818 |
|
---|
1819 |
|
---|
1820 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1821 | ViewCell *vc) const
|
---|
1822 | {
|
---|
1823 | if (mColorCode == 0) // Random color
|
---|
1824 | return;
|
---|
1825 |
|
---|
1826 | float importance = 0;
|
---|
1827 |
|
---|
1828 | switch (mColorCode)
|
---|
1829 | {
|
---|
1830 | case 1: // pvs
|
---|
1831 | {
|
---|
1832 | importance = (float)vc->GetPvs().GetSize() /
|
---|
1833 | (float)mViewCellsStats.maxPvs;
|
---|
1834 | }
|
---|
1835 | break;
|
---|
1836 | case 2: // merges
|
---|
1837 | {
|
---|
1838 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
1839 |
|
---|
1840 | importance = (float)vspKdVc->mLeaves.size() /
|
---|
1841 | (float)mViewCellsStats.maxLeaves;
|
---|
1842 | }
|
---|
1843 | break;
|
---|
1844 | case 3: // merged tree depth difference
|
---|
1845 | {
|
---|
1846 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
1847 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
1848 | }
|
---|
1849 | break;
|
---|
1850 | default:
|
---|
1851 | break;
|
---|
1852 | }
|
---|
1853 |
|
---|
1854 | Material m;
|
---|
1855 | m.mDiffuseColor.b = 1.0f;
|
---|
1856 | m.mDiffuseColor.r = importance;
|
---|
1857 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1858 | //Debug << "importance: " << importance << endl;
|
---|
1859 | exporter->SetForcedMaterial(m);
|
---|
1860 | }
|
---|
1861 |
|
---|
1862 |
|
---|
1863 | void VspKdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1864 | ViewCell *vc) const
|
---|
1865 | {
|
---|
1866 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
1867 | vector<VspKdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
1868 |
|
---|
1869 | Mesh m;
|
---|
1870 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1871 | {
|
---|
1872 | mVspKdTree->GetBBox(*it).AddBoxToMesh(&m);
|
---|
1873 | }
|
---|
1874 |
|
---|
1875 | exporter->ExportMesh(&m);
|
---|
1876 | }
|
---|
1877 |
|
---|
1878 |
|
---|
1879 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1880 | {
|
---|
1881 | //TODO
|
---|
1882 | }
|
---|
1883 |
|
---|
1884 | /**************************************************************************/
|
---|
1885 | /* VspBspViewCellsManager implementation */
|
---|
1886 | /**************************************************************************/
|
---|
1887 |
|
---|
1888 |
|
---|
1889 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree,
|
---|
1890 | int constructionSamples):
|
---|
1891 | ViewCellsManager(constructionSamples),
|
---|
1892 | mVspBspTree(vspBspTree)
|
---|
1893 | {
|
---|
1894 | mVspBspTree->SetViewCellsManager(this);
|
---|
1895 | }
|
---|
1896 |
|
---|
1897 |
|
---|
1898 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
1899 | {
|
---|
1900 | }
|
---|
1901 |
|
---|
1902 |
|
---|
1903 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1904 | {
|
---|
1905 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
1906 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1907 | else
|
---|
1908 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
1909 | }
|
---|
1910 |
|
---|
1911 |
|
---|
1912 | void VspBspViewCellsManager::CollectViewCells()
|
---|
1913 | {
|
---|
1914 | mVspBspTree->CollectViewCells(mViewCells, mOnlyValidViewCells);
|
---|
1915 | }
|
---|
1916 |
|
---|
1917 |
|
---|
1918 | float VspBspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
1919 | float objRendercost) const
|
---|
1920 | {
|
---|
1921 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1922 | }
|
---|
1923 |
|
---|
1924 |
|
---|
1925 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
1926 | {
|
---|
1927 | return mVspBspTree->GetRoot() != NULL;
|
---|
1928 | }
|
---|
1929 |
|
---|
1930 |
|
---|
1931 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1932 | {
|
---|
1933 | return new BspViewCell(mesh);
|
---|
1934 | }
|
---|
1935 |
|
---|
1936 |
|
---|
1937 |
|
---|
1938 | int VspBspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1939 | const VssRayContainer &rays)
|
---|
1940 | {
|
---|
1941 | // if view cells were already constructed
|
---|
1942 | if (ViewCellsConstructed())
|
---|
1943 | return 0;
|
---|
1944 |
|
---|
1945 | Debug << "Constructing bsp view cells" << endl;
|
---|
1946 |
|
---|
1947 | int sampleContributions = 0;
|
---|
1948 |
|
---|
1949 | VssRayContainer sampleRays;
|
---|
1950 |
|
---|
1951 | int limit = min (mConstructionSamples, (int)rays.size());
|
---|
1952 |
|
---|
1953 | VssRayContainer constructionRays;
|
---|
1954 | VssRayContainer savedRays;
|
---|
1955 |
|
---|
1956 | Debug << "construction samples: " << mConstructionSamples << " rays: " << (int)rays.size() << endl;
|
---|
1957 | GetRaySets(rays, mConstructionSamples, constructionRays, &savedRays);
|
---|
1958 |
|
---|
1959 | Debug << "construction rays: " << (int)constructionRays.size() << endl;
|
---|
1960 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
1961 |
|
---|
1962 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
1963 |
|
---|
1964 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
1965 |
|
---|
1966 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
1967 |
|
---|
1968 | // collapse invalid regions
|
---|
1969 | cout << "collapsing invalid tree regions ... ";
|
---|
1970 | long startTime = GetTime();
|
---|
1971 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
1972 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3 << " seconds" << endl;
|
---|
1973 | cout << "finished" << endl;
|
---|
1974 |
|
---|
1975 | cout << "reseting view cell stats ... ";
|
---|
1976 | ResetViewCells();
|
---|
1977 | cout << "finished" << endl;
|
---|
1978 |
|
---|
1979 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1980 |
|
---|
1981 | if (1) // export initial view cells
|
---|
1982 | {
|
---|
1983 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1984 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1985 |
|
---|
1986 | if (exporter)
|
---|
1987 | {
|
---|
1988 | //exporter->SetWireframe();
|
---|
1989 | exporter->SetFilled();
|
---|
1990 | ExportViewCellsForViz(exporter);
|
---|
1991 |
|
---|
1992 | if (0 && mExportRays)
|
---|
1993 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
1994 |
|
---|
1995 | if (mExportGeometry)
|
---|
1996 | exporter->ExportGeometry(objects);
|
---|
1997 |
|
---|
1998 | delete exporter;
|
---|
1999 | }
|
---|
2000 | cout << "finished" << endl;
|
---|
2001 | }
|
---|
2002 |
|
---|
2003 | startTime = GetTime();
|
---|
2004 |
|
---|
2005 | // reset view cells and stats
|
---|
2006 | ResetViewCells();
|
---|
2007 |
|
---|
2008 | cout << "Computing remaining ray contributions ... ";
|
---|
2009 | // recast rest of rays
|
---|
2010 | ComputeSampleContributions(savedRays);
|
---|
2011 | cout << "finished" << endl;
|
---|
2012 |
|
---|
2013 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
2014 | << " secs" << endl;
|
---|
2015 |
|
---|
2016 | cout << "construction finished" << endl;
|
---|
2017 |
|
---|
2018 | return sampleContributions;
|
---|
2019 | }
|
---|
2020 |
|
---|
2021 |
|
---|
2022 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
2023 | const ObjectContainer &objects)
|
---|
2024 | {
|
---|
2025 | //-- post processing of bsp view cells
|
---|
2026 | int vcSize = 0;
|
---|
2027 | int pvsSize = 0;
|
---|
2028 |
|
---|
2029 | mRenderer->RenderScene();
|
---|
2030 | SimulationStatistics ss;
|
---|
2031 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2032 | Debug << ss << endl;
|
---|
2033 |
|
---|
2034 | //-- merge or subdivide view cells
|
---|
2035 | int merged = 0;
|
---|
2036 |
|
---|
2037 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
2038 | long startTime = GetTime();
|
---|
2039 |
|
---|
2040 | // TODO: should be done BEFORE the ray casting
|
---|
2041 | merged = mVspBspTree->MergeViewCells(rays, objects);
|
---|
2042 |
|
---|
2043 | //-- stats and visualizations
|
---|
2044 | cout << "finished merging" << endl;
|
---|
2045 | cout << "merged " << merged << " view cells in "
|
---|
2046 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
2047 |
|
---|
2048 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
2049 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
2050 |
|
---|
2051 | cout << "reseting view cell stats ... ";
|
---|
2052 | ResetViewCells();
|
---|
2053 | cout << "finished" << endl;
|
---|
2054 |
|
---|
2055 | //BspLeaf::NewMail();
|
---|
2056 | if (1) // export merged view cells
|
---|
2057 | {
|
---|
2058 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
2059 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
2060 |
|
---|
2061 | cout << "exporting view cells after merge ... ";
|
---|
2062 |
|
---|
2063 | if (exporter)
|
---|
2064 | {
|
---|
2065 | if (0)
|
---|
2066 | exporter->SetWireframe();
|
---|
2067 | else
|
---|
2068 | exporter->SetFilled();
|
---|
2069 | ExportViewCellsForViz(exporter);
|
---|
2070 |
|
---|
2071 | if (mExportGeometry)
|
---|
2072 | {
|
---|
2073 | Material m;
|
---|
2074 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2075 | exporter->SetForcedMaterial(m);
|
---|
2076 | exporter->SetFilled();
|
---|
2077 |
|
---|
2078 | exporter->ExportGeometry(objects);
|
---|
2079 | }
|
---|
2080 |
|
---|
2081 | delete exporter;
|
---|
2082 | }
|
---|
2083 | cout << "finished" << endl;
|
---|
2084 | }
|
---|
2085 | }
|
---|
2086 |
|
---|
2087 |
|
---|
2088 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
2089 | const ObjectContainer &objects)
|
---|
2090 | {
|
---|
2091 | Debug << "render time before refine:" << endl;
|
---|
2092 | mRenderer->RenderScene();
|
---|
2093 | SimulationStatistics ss;
|
---|
2094 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2095 | Debug << ss << endl;
|
---|
2096 |
|
---|
2097 | cout << "Refining the merged view cells ... ";
|
---|
2098 | long startTime = GetTime();
|
---|
2099 |
|
---|
2100 | // refining the merged view cells
|
---|
2101 | const int refined = mVspBspTree->RefineViewCells(rays, objects);
|
---|
2102 |
|
---|
2103 | //-- stats and visualizations
|
---|
2104 | cout << "finished" << endl;
|
---|
2105 | cout << "refined " << refined << " view cells in "
|
---|
2106 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
2107 |
|
---|
2108 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
2109 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
2110 | }
|
---|
2111 |
|
---|
2112 |
|
---|
2113 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
2114 | const VssRayContainer &rays)
|
---|
2115 | {
|
---|
2116 | if (!ViewCellsConstructed())
|
---|
2117 | {
|
---|
2118 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
2119 | return 0;
|
---|
2120 | }
|
---|
2121 |
|
---|
2122 |
|
---|
2123 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
2124 | if (mViewCellsFinished)
|
---|
2125 | {
|
---|
2126 | FinalizeViewCells(true);
|
---|
2127 | EvaluateViewCellsStats();
|
---|
2128 | return 0;
|
---|
2129 | }
|
---|
2130 |
|
---|
2131 |
|
---|
2132 | // check if new view cells turned invalid
|
---|
2133 | mVspBspTree->ValidateTree();
|
---|
2134 | ResetViewCells();
|
---|
2135 |
|
---|
2136 |
|
---|
2137 | VssRayContainer postProcessRays;
|
---|
2138 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
2139 |
|
---|
2140 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
2141 |
|
---|
2142 | Debug << "\nview cell partition after sampling:\n" << mViewCellsStats << endl << endl;
|
---|
2143 |
|
---|
2144 | // should maybe be done here to allow merge working with area or volume
|
---|
2145 | // and to correct the rendering statistics
|
---|
2146 | if (0)
|
---|
2147 | {
|
---|
2148 | FinalizeViewCells(false);
|
---|
2149 | }
|
---|
2150 |
|
---|
2151 | //-- merge the individual view cells
|
---|
2152 | MergeViewCells(postProcessRays, objects);
|
---|
2153 | //-- refines the merged view cells
|
---|
2154 | RefineViewCells(postProcessRays, objects);
|
---|
2155 |
|
---|
2156 | //-- export shuffled view cells
|
---|
2157 | if (1)
|
---|
2158 | {
|
---|
2159 | cout << "exporting shuffled view cells ... ";
|
---|
2160 |
|
---|
2161 | Exporter *exporter = Exporter::GetExporter("shuffled_view_cells.x3d");
|
---|
2162 | if (exporter)
|
---|
2163 | {
|
---|
2164 | if (1)
|
---|
2165 | {
|
---|
2166 | exporter->SetWireframe();
|
---|
2167 | exporter->ExportBox(mViewSpaceBox);
|
---|
2168 | exporter->SetFilled();
|
---|
2169 | }
|
---|
2170 |
|
---|
2171 | if (mExportGeometry)
|
---|
2172 | {
|
---|
2173 | exporter->ExportGeometry(objects);
|
---|
2174 | }
|
---|
2175 |
|
---|
2176 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
2177 |
|
---|
2178 | Material vm, lm;
|
---|
2179 |
|
---|
2180 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
2181 | {
|
---|
2182 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
2183 |
|
---|
2184 | vm = RandomMaterial();
|
---|
2185 |
|
---|
2186 | lm = vm;
|
---|
2187 |
|
---|
2188 | vm.mDiffuseColor.r -= 0.45f;
|
---|
2189 | vm.mDiffuseColor.g -= 0.45f;
|
---|
2190 | vm.mDiffuseColor.b -= 0.45f;
|
---|
2191 |
|
---|
2192 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
2193 |
|
---|
2194 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
2195 | {
|
---|
2196 | BspLeaf *leaf = *lit;
|
---|
2197 |
|
---|
2198 | if (leaf->Mailed())
|
---|
2199 | exporter->SetForcedMaterial(lm);
|
---|
2200 | else
|
---|
2201 | exporter->SetForcedMaterial(vm);
|
---|
2202 |
|
---|
2203 | BspNodeGeometry geom;
|
---|
2204 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
2205 | exporter->ExportPolygons(geom.mPolys);
|
---|
2206 | }
|
---|
2207 | }
|
---|
2208 |
|
---|
2209 | delete exporter;
|
---|
2210 | }
|
---|
2211 |
|
---|
2212 |
|
---|
2213 | cout << "finished" << endl;
|
---|
2214 | }
|
---|
2215 |
|
---|
2216 | // collapse sibling leaves that share the same view cell
|
---|
2217 | mVspBspTree->CollapseTree();
|
---|
2218 |
|
---|
2219 | ResetViewCells();
|
---|
2220 |
|
---|
2221 | // real meshes are only contructed only at this stage
|
---|
2222 | FinalizeViewCells(true);
|
---|
2223 |
|
---|
2224 | // write view cells to disc
|
---|
2225 | if (mExportViewCells)
|
---|
2226 | {
|
---|
2227 | char buff[100];
|
---|
2228 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
2229 | string vcFilename(buff);
|
---|
2230 |
|
---|
2231 | ExportViewCells(buff);
|
---|
2232 | }
|
---|
2233 |
|
---|
2234 | return 0;
|
---|
2235 | }
|
---|
2236 |
|
---|
2237 |
|
---|
2238 | int VspBspViewCellsManager::GetType() const
|
---|
2239 | {
|
---|
2240 | return VSP_BSP;
|
---|
2241 | }
|
---|
2242 |
|
---|
2243 |
|
---|
2244 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
2245 | {
|
---|
2246 | if (!ViewCellsConstructed())
|
---|
2247 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
2248 |
|
---|
2249 | // TODO: set reasonable limit
|
---|
2250 | const int limit = 20;
|
---|
2251 |
|
---|
2252 | for (int i = 0; i < limit; ++ i)
|
---|
2253 | {
|
---|
2254 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
2255 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
2256 | {
|
---|
2257 | return true;
|
---|
2258 | }
|
---|
2259 | }
|
---|
2260 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
2261 | return false;
|
---|
2262 | }
|
---|
2263 |
|
---|
2264 |
|
---|
2265 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
2266 | {
|
---|
2267 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
2268 | // validy update in preprocessor for all managers)
|
---|
2269 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
2270 |
|
---|
2271 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
2272 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
2273 | }
|
---|
2274 |
|
---|
2275 |
|
---|
2276 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
2277 | const VssRayContainer &sampleRays)
|
---|
2278 | {
|
---|
2279 | if (!ViewCellsConstructed())
|
---|
2280 | return;
|
---|
2281 |
|
---|
2282 | VssRayContainer visRays;
|
---|
2283 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
2284 |
|
---|
2285 | if (1) // export view cells
|
---|
2286 | {
|
---|
2287 | cout << "exporting view cells after post process ... ";
|
---|
2288 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
2289 |
|
---|
2290 | if (exporter)
|
---|
2291 | {
|
---|
2292 | if (1)
|
---|
2293 | {
|
---|
2294 | exporter->SetWireframe();
|
---|
2295 | exporter->ExportBox(mViewSpaceBox);
|
---|
2296 | exporter->SetFilled();
|
---|
2297 | }
|
---|
2298 |
|
---|
2299 | if (mExportGeometry)
|
---|
2300 | {
|
---|
2301 | exporter->ExportGeometry(objects);
|
---|
2302 | }
|
---|
2303 |
|
---|
2304 | // export rays
|
---|
2305 | if (mExportRays)
|
---|
2306 | {
|
---|
2307 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
2308 | }
|
---|
2309 |
|
---|
2310 | ExportViewCellsForViz(exporter);
|
---|
2311 | delete exporter;
|
---|
2312 | }
|
---|
2313 | }
|
---|
2314 |
|
---|
2315 | //-- visualization of the BSP splits
|
---|
2316 | bool exportSplits = false;
|
---|
2317 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
2318 |
|
---|
2319 | if (exportSplits)
|
---|
2320 | {
|
---|
2321 | cout << "exporting splits ... ";
|
---|
2322 | ExportSplits(objects, visRays);
|
---|
2323 | cout << "finished" << endl;
|
---|
2324 | }
|
---|
2325 |
|
---|
2326 | //-- export single view cells
|
---|
2327 | ExportBspPvs(objects, visRays);
|
---|
2328 | }
|
---|
2329 |
|
---|
2330 |
|
---|
2331 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
2332 | const VssRayContainer &rays)
|
---|
2333 | {
|
---|
2334 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
2335 |
|
---|
2336 | if (exporter)
|
---|
2337 | {
|
---|
2338 | Material m;
|
---|
2339 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2340 | exporter->SetForcedMaterial(m);
|
---|
2341 | exporter->SetWireframe();
|
---|
2342 |
|
---|
2343 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
2344 |
|
---|
2345 | // take forced material, else big scenes cannot be viewed
|
---|
2346 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2347 | exporter->SetForcedMaterial(m);
|
---|
2348 | exporter->SetFilled();
|
---|
2349 |
|
---|
2350 | exporter->ResetForcedMaterial();
|
---|
2351 |
|
---|
2352 | // export rays
|
---|
2353 | if (mExportRays)
|
---|
2354 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
2355 |
|
---|
2356 | if (mExportGeometry)
|
---|
2357 | exporter->ExportGeometry(objects);
|
---|
2358 |
|
---|
2359 | delete exporter;
|
---|
2360 | }
|
---|
2361 | }
|
---|
2362 |
|
---|
2363 |
|
---|
2364 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
2365 | const VssRayContainer &rays)
|
---|
2366 | {
|
---|
2367 | const int leafOut = 10;
|
---|
2368 |
|
---|
2369 | ViewCell::NewMail();
|
---|
2370 |
|
---|
2371 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
2372 | Debug << "\nOutput view cells: " << endl;
|
---|
2373 |
|
---|
2374 | // sort view cells to visualize the largest view cells
|
---|
2375 | #if 0
|
---|
2376 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
2377 | #endif
|
---|
2378 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
2379 |
|
---|
2380 | #if 1
|
---|
2381 | //-- some rays for output
|
---|
2382 | vector<BspRay *> bspRays;
|
---|
2383 | mVspBspTree->ConstructBspRays(bspRays, rays);
|
---|
2384 |
|
---|
2385 | const int raysOut = min((int)bspRays.size(), mVisualizationSamples);
|
---|
2386 | #endif
|
---|
2387 |
|
---|
2388 | for (int i = 0; i < limit; ++ i)
|
---|
2389 | {
|
---|
2390 | cout << "creating output for view cell " << i << " ... ";
|
---|
2391 |
|
---|
2392 | VssRayContainer vcRays;
|
---|
2393 | Intersectable::NewMail();
|
---|
2394 | #if 0 // largest view cell pvs first
|
---|
2395 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
2396 | #else
|
---|
2397 | BspViewCell *vc = dynamic_cast<BspViewCell *>
|
---|
2398 | (mViewCells[Random((int)mViewCells.size())]);
|
---|
2399 | #endif
|
---|
2400 |
|
---|
2401 | #if 1
|
---|
2402 | // check whether we can add the current ray to the output rays
|
---|
2403 | for (int k = 0; k < raysOut; ++ k)
|
---|
2404 | {
|
---|
2405 | BspRay *ray = bspRays[k];
|
---|
2406 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
2407 | {
|
---|
2408 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
2409 | if (vc == leaf->GetViewCell())
|
---|
2410 | vcRays.push_back(ray->vssRay);
|
---|
2411 | }
|
---|
2412 | }
|
---|
2413 | #endif
|
---|
2414 | //bspLeaves[j]->Mail();
|
---|
2415 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
2416 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
2417 | exporter->SetWireframe();
|
---|
2418 |
|
---|
2419 | Material m;//= RandomMaterial();
|
---|
2420 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2421 | exporter->SetForcedMaterial(m);
|
---|
2422 |
|
---|
2423 | ExportVcGeometry(exporter, vc);
|
---|
2424 |
|
---|
2425 |
|
---|
2426 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
2427 | << ", piercing rays=" << (int)vcRays.size()
|
---|
2428 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
2429 |
|
---|
2430 | //-- export rays piercing this view cell
|
---|
2431 | #if 1
|
---|
2432 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
2433 | #endif
|
---|
2434 | #if 0
|
---|
2435 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
2436 |
|
---|
2437 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
2438 | exporter->ExportRays((*lit)->mVssRays);
|
---|
2439 | #endif
|
---|
2440 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2441 | exporter->SetForcedMaterial(m);
|
---|
2442 |
|
---|
2443 | ObjectPvsMap::const_iterator it,
|
---|
2444 | it_end = vc->GetPvs().mEntries.end();
|
---|
2445 |
|
---|
2446 | exporter->SetFilled();
|
---|
2447 |
|
---|
2448 | // output PVS of view cell
|
---|
2449 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
2450 | {
|
---|
2451 | Intersectable *intersect = (*it).first;
|
---|
2452 |
|
---|
2453 | if (!intersect->Mailed())
|
---|
2454 | {
|
---|
2455 | Material m = RandomMaterial();
|
---|
2456 | exporter->SetForcedMaterial(m);
|
---|
2457 |
|
---|
2458 | exporter->ExportIntersectable(intersect);
|
---|
2459 | intersect->Mail();
|
---|
2460 | }
|
---|
2461 | }
|
---|
2462 |
|
---|
2463 | DEL_PTR(exporter);
|
---|
2464 | cout << "finished" << endl;
|
---|
2465 | }
|
---|
2466 |
|
---|
2467 | #if 1
|
---|
2468 | CLEAR_CONTAINER(bspRays);
|
---|
2469 | #endif
|
---|
2470 | Debug << endl;
|
---|
2471 | }
|
---|
2472 |
|
---|
2473 |
|
---|
2474 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2475 | const Vector3 &termination,
|
---|
2476 | ViewCellContainer &viewcells)
|
---|
2477 | {
|
---|
2478 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
2479 | }
|
---|
2480 |
|
---|
2481 |
|
---|
2482 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
2483 | ViewCell *vc) const
|
---|
2484 | {
|
---|
2485 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
2486 |
|
---|
2487 | float importance = 0;
|
---|
2488 | static Material m;
|
---|
2489 |
|
---|
2490 | switch (mColorCode)
|
---|
2491 | {
|
---|
2492 | case 0: // Random
|
---|
2493 | {
|
---|
2494 | if (vcValid)
|
---|
2495 | {
|
---|
2496 | m = RandomMaterial();
|
---|
2497 | }
|
---|
2498 | else
|
---|
2499 | {
|
---|
2500 | m.mDiffuseColor.r = 0.0f;
|
---|
2501 | m.mDiffuseColor.g = 1.0f;
|
---|
2502 | m.mDiffuseColor.b = 0.0f;
|
---|
2503 | }
|
---|
2504 | }
|
---|
2505 | return;
|
---|
2506 | case 1: // pvs
|
---|
2507 | {
|
---|
2508 | importance = (float)vc->GetPvs().GetSize() /
|
---|
2509 | (float)mViewCellsStats.maxPvs;
|
---|
2510 | }
|
---|
2511 | break;
|
---|
2512 | case 2: // merges
|
---|
2513 | {
|
---|
2514 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2515 |
|
---|
2516 | importance = (float)bspVc->mLeaves.size() /
|
---|
2517 | (float)mViewCellsStats.maxLeaves;
|
---|
2518 | }
|
---|
2519 | break;
|
---|
2520 | case 3: // merge tree differene
|
---|
2521 | {
|
---|
2522 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
2523 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
2524 |
|
---|
2525 | }
|
---|
2526 | break;
|
---|
2527 | default:
|
---|
2528 | break;
|
---|
2529 | }
|
---|
2530 |
|
---|
2531 | // special color code for invalid view cells
|
---|
2532 | m.mDiffuseColor.r = importance;
|
---|
2533 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
2534 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
2535 |
|
---|
2536 | //Debug << "importance: " << importance << endl;
|
---|
2537 | exporter->SetForcedMaterial(m);
|
---|
2538 | }
|
---|
2539 |
|
---|
2540 |
|
---|
2541 | void VspBspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
2542 | ViewCell *vc) const
|
---|
2543 | {
|
---|
2544 | if (vc->GetMesh())
|
---|
2545 | {
|
---|
2546 | exporter->ExportMesh(vc->GetMesh());
|
---|
2547 | return;
|
---|
2548 | }
|
---|
2549 |
|
---|
2550 | BspNodeGeometry geom;
|
---|
2551 | mVspBspTree->
|
---|
2552 | ConstructGeometry(dynamic_cast<BspViewCell *>(vc), geom);
|
---|
2553 | exporter->ExportPolygons(geom.mPolys);
|
---|
2554 | }
|
---|
2555 |
|
---|
2556 |
|
---|
2557 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
2558 | {
|
---|
2559 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2560 |
|
---|
2561 | int maxDist = 0;
|
---|
2562 | // compute max height difference
|
---|
2563 | for (int i = 0; i < (int)bspVc->mLeaves.size(); ++ i)
|
---|
2564 | for (int j = 0; j < (int)bspVc->mLeaves.size(); ++ j)
|
---|
2565 | {
|
---|
2566 | BspLeaf *leaf = bspVc->mLeaves[i];
|
---|
2567 |
|
---|
2568 | if (i != j)
|
---|
2569 | {
|
---|
2570 | BspLeaf *leaf2 = bspVc->mLeaves[j];
|
---|
2571 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
2572 | if (dist > maxDist)
|
---|
2573 | maxDist = dist;
|
---|
2574 | }
|
---|
2575 | }
|
---|
2576 | return maxDist;
|
---|
2577 | }
|
---|
2578 |
|
---|
2579 |
|
---|
2580 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
2581 | {
|
---|
2582 | if (!mVspBspTree)
|
---|
2583 | return NULL;
|
---|
2584 | return mVspBspTree->GetViewCell(point);
|
---|
2585 | }
|
---|
2586 |
|
---|
2587 |
|
---|
2588 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
2589 | {
|
---|
2590 | BspNodeGeometry geom;
|
---|
2591 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2592 | mVspBspTree->ConstructGeometry(bspVc, geom);
|
---|
2593 |
|
---|
2594 | Mesh *mesh = new Mesh();
|
---|
2595 | geom.AddToMesh(*mesh);
|
---|
2596 | vc->SetMesh(mesh);
|
---|
2597 | mMeshContainer.push_back(mesh);
|
---|
2598 | }
|
---|
2599 |
|
---|
2600 |
|
---|
2601 | bool VspBspViewCellsManager::LoadViewCells(const string filename, ObjectContainer *objects)
|
---|
2602 | {
|
---|
2603 | ViewCellsParser parser;
|
---|
2604 |
|
---|
2605 | DEL_PTR(mVspBspTree);
|
---|
2606 | mVspBspTree = new VspBspTree();
|
---|
2607 |
|
---|
2608 | bool success = parser.ParseFile(filename, mVspBspTree, this, objects);
|
---|
2609 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
2610 | mVspBspTree->mBox = GetViewSpaceBox();
|
---|
2611 | ResetViewCells();
|
---|
2612 |
|
---|
2613 | mViewCellsFinished = true;
|
---|
2614 | mMaxPvsSize = (int)objects->size();
|
---|
2615 |
|
---|
2616 | FinalizeViewCells(true);
|
---|
2617 |
|
---|
2618 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
2619 |
|
---|
2620 | return success;
|
---|
2621 | }
|
---|
2622 |
|
---|
2623 |
|
---|
2624 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
2625 | {
|
---|
2626 | return obj1->mId < obj2->mId;
|
---|
2627 | }
|
---|
2628 |
|
---|
2629 |
|
---|
2630 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
2631 | {
|
---|
2632 | cout << "exporting view cells to xml ... ";
|
---|
2633 | std::ofstream stream;
|
---|
2634 |
|
---|
2635 | // for output we need unique ids
|
---|
2636 | CreateUniqueViewCellIds();
|
---|
2637 |
|
---|
2638 | stream.open(filename.c_str());
|
---|
2639 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
2640 | stream << "<Visibility_Solution>" << endl;
|
---|
2641 |
|
---|
2642 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
2643 | stream << "<ViewCells>" << endl;
|
---|
2644 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
2645 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2646 | ExportViewCell(*it, stream);
|
---|
2647 |
|
---|
2648 | stream << "</ViewCells>" << endl;
|
---|
2649 |
|
---|
2650 | //-- load the hierarchy
|
---|
2651 | stream << "<BspTree>" << endl;
|
---|
2652 | mVspBspTree->Export(stream);
|
---|
2653 | stream << endl << "</BspTree>" << endl;
|
---|
2654 |
|
---|
2655 | stream << "</Visibility_Solution>" << endl;
|
---|
2656 | stream.close();
|
---|
2657 |
|
---|
2658 | cout << "finished" << endl;
|
---|
2659 |
|
---|
2660 | return true;
|
---|
2661 | }
|
---|
2662 |
|
---|
2663 |
|
---|
2664 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
2665 | {
|
---|
2666 | return mVspBspTree->CastBeam(beam);
|
---|
2667 | }
|
---|
2668 |
|
---|
2669 |
|
---|
2670 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
2671 | {
|
---|
2672 | BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
2673 | CreateMesh(vc);
|
---|
2674 |
|
---|
2675 | vector<BspLeaf *>::const_iterator it, it_end = vc->mLeaves.end();
|
---|
2676 |
|
---|
2677 | float area = 0;
|
---|
2678 | float volume = 0;
|
---|
2679 |
|
---|
2680 | for (it = vc->mLeaves.begin(); it != it_end; ++ it)
|
---|
2681 | {
|
---|
2682 | BspNodeGeometry geom;
|
---|
2683 | BspLeaf *leaf = *it;
|
---|
2684 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
2685 |
|
---|
2686 | area += geom.GetArea();
|
---|
2687 | volume += geom.GetVolume();
|
---|
2688 | }
|
---|
2689 |
|
---|
2690 | viewCell->SetVolume(volume);
|
---|
2691 | viewCell->SetArea(area);
|
---|
2692 | }
|
---|