1 | #ifndef _ViewCellsManager_H__
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2 | #define _ViewCellsManager_H__
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3 |
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4 | #include "Ray.h"
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5 | #include "SimpleRay.h"
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6 | #include "VssRay.h"
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7 | #include "Containers.h"
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8 | #include "ViewCell.h"
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9 |
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10 |
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11 | namespace GtpVisibilityPreprocessor {
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12 |
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13 | class ViewCell;
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14 | class Intersectable;
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15 | class RenderSimulator;
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16 | class Renderer;
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17 | class Mesh;
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18 | struct Triangle3;
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19 | class SimulationStatistics;
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20 | class BspTree;
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21 | class KdTree;
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22 | class VspOspTree;
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23 | class VspBspTree;
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24 | class KdNode;
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25 | class KdLeaf;
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26 | class AxisAlignedBox3;
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27 | class BspLeaf;
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28 | class ViewCellsStatistics;
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29 | class Exporter;
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30 | class Beam;
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31 | class Preprocessor;
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32 | class ViewCellsTree;
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33 | class MergeCandidate;
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34 | class BoundingBoxConverter;
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35 | class VspTree;
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36 | class OspTree;
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37 | class VspNode;
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38 | class HierarchyManager;
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39 | class BvHierarchy;
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40 | class ViewCellsTree;
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41 | class ViewCell;
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42 | class MixtureDistribution;
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43 | struct AxisAlignedPlane;
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44 | struct BspRay;
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45 | class BspTree;
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46 |
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47 |
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48 |
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49 | struct PvsFilterStatistics
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50 | {
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51 | PvsFilterStatistics():
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52 | mAvgFilterRadius(0.0f), mLocalFilterCount(0), mGlobalFilterCount(0) {}
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53 |
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54 | float mAvgFilterRadius;
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55 | int mLocalFilterCount;
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56 | int mGlobalFilterCount;
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57 | };
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58 |
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59 | /** Probably Visible Set
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60 | */
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61 | class PrVs
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62 | {
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63 | public:
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64 | /// root of view cells tree
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65 | ViewCell *mViewCell;
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66 |
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67 | // input parameter is the render budget for the PrVs
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68 | float mRenderBudget;
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69 |
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70 | // some characteristic values could be stored as well
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71 | };
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72 |
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73 |
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74 | class LocalMergeNode
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75 | {
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76 | public:
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77 | virtual ~LocalMergeNode() {};
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78 | virtual bool IsLeaf() const = 0;
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79 | };
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80 |
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81 | typedef pair<ViewCell *, SimpleRayContainer> ViewCellPoints;
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82 |
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83 | /** Manages different higher order operations on the view cells.
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84 | */
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85 | class ViewCellsManager
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86 | {
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87 | public:
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88 |
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89 | struct PerViewCellStat
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90 | {
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91 | float pvsSize;
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92 | float relPvsIncrease;
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93 | };
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94 |
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95 | struct SamplesStatistics
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96 | {
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97 | int mRays;
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98 | int mViewCells;
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99 | int mContributingRays;
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100 | int mPvsContributions;
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101 | void Reset()
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102 | {
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103 | mRays = 0;
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104 | mViewCells = 0;
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105 | mContributingRays = 0;
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106 | mPvsContributions = 0;
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107 | };
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108 | };
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109 |
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110 | struct PvsStatistics
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111 | {
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112 | float minPvs;
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113 | float maxPvs;
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114 | float avgPvs;
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115 | float renderCost;
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116 | float avgPvsEntries;
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117 |
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118 | float avgFilteredPvs;
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119 | float avgFilteredPvsEntries;
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120 |
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121 | float avgFilterContribution;
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122 | float avgFilterRadius;
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123 | float avgFilterRatio;
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124 | float avgRelPvsIncrease;
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125 | float devRelPvsIncrease;
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126 | int viewcells;
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127 |
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128 | float mem;
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129 | };
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130 |
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131 | /// view cell container types
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132 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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133 |
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134 | /// render cost evaluation type
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135 | enum {PER_OBJECT, PER_TRIANGLE};
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136 |
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137 | friend class X3dViewCellsParseHandlers;
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138 |
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139 | /** Default constructor.
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140 | */
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141 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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142 |
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143 | virtual ~ViewCellsManager();
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144 |
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145 | /** Constructs view cells container taking a preprocessor
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146 | @returns the output rays (if not null)
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147 | */
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148 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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149 |
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150 | /** Constructs view cell container with a given number of samples.
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151 | */
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152 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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153 | const VssRayContainer &rays) = 0;
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154 |
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155 | /** Computes sample contributions of the rays to the view cells PVS.
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156 |
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157 | @param rays bundle of rays used to find intersections with view cells and
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158 | adding the contribution
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159 | @param addRays true if rays should be added to the PVSs of the viewcells they
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160 | intersect
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161 | @param storeViewCells true if view cells should be stored in the ray
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162 | */
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163 | float ComputeSampleContributions(const VssRayContainer &rays,
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164 | const bool addContributions,
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165 | const bool storeViewCells,
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166 | const bool useHitObject = false);
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167 |
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168 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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169 | @param ray finds intersections with view cells and holds the contribution
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170 | @param addSample if sample should be added to the pvs
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171 |
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172 | @returns number of sample contributions
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173 | */
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174 | virtual float ComputeSampleContribution(VssRay &ray,
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175 | const bool addContributions,
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176 | const bool storeViewCells,
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177 | const bool useHitObject = false);
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178 |
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179 | /** Compute sample contribution only for current view cell.
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180 | */
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181 | virtual float ComputeSampleContribution(VssRay &ray,
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182 | const bool addContributions,
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183 | ViewCell *currentViewCell,
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184 | const bool useHitObject = false);
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185 |
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186 | /** Prints out statistics of the view cells.
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187 | */
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188 | virtual void PrintStatistics(std::ostream &s) const;
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189 |
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190 | /** Post processes view cells givemŽa number of rays.
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191 | */
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192 | virtual int PostProcess(const ObjectContainer &objects,
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193 | const VssRayContainer &rays) = 0;
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194 |
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195 | /** Show visualization of the view cells.
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196 | */
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197 | virtual void Visualize(const ObjectContainer &objects,
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198 | const VssRayContainer &sampleRays) = 0;
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199 |
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200 | /** collect objects intersecting a given spatial box.
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201 | */
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202 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
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203 |
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204 | /** type of the view cell container.
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205 | */
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206 | virtual int GetType() const = 0;
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207 |
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208 | /** Load the input viewcells. The input viewcells should be given as a collection
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209 | of meshes. Each mesh is assume to form a bounded polyhedron
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210 | defining the interior of the viewcell. The view cells manager
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211 | is responsible for building a hierarchy over these view cells.
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212 |
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213 | @param filename file to load
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214 | @return true on success
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215 | */
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216 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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217 |
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218 | /** Merges two view cells.
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219 | @note the piercing rays of the front and back will be ordered
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220 | @returns new view cell based on the merging.
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221 | */
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222 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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223 |
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224 | /** Merges a container of view cells.
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225 | @returns new view cell based on the merging.
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226 | */
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227 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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228 |
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229 | /** Generates view cell of the type specified by this manager
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230 | */
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231 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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232 |
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233 | /** Constructs view cell from base triangle.
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234 | The view cell is extruded along the normal vector.
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235 | @param the base triangle
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236 | @param the height of the newly created view cell
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237 | */
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238 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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239 |
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240 | virtual Intersectable *GetIntersectable(const VssRay &ray, const bool isTermination) const;
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241 |
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242 | /** Sets maximal number of samples used for the
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243 | construction of the view cells.
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244 | */
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245 | void SetVisualizationSamples(const int visSamples);
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246 |
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247 | /** Sets maximal number of samples used for the construction of the view cells.
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248 | */
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249 | void SetConstructionSamples(const int constructionSamples);
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250 |
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251 | /** Sets maximal number of samples used for the visualization of the view cells.
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252 | */
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253 | void SetInitialSamples(const int initialSamples);
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254 |
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255 | /** Sets maximal number of samples used for the post processing of the view cells.
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256 | */
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257 | void SetPostProcessSamples(const int postProcessingSamples);
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258 |
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259 | /** See set.
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260 | */
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261 | int GetVisualizationSamples() const;
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262 |
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263 | /** See set.
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264 | */
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265 | int GetConstructionSamples() const;
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266 |
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267 | /** See set.
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268 | */
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269 | int GetPostProcessSamples() const;
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270 |
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271 | /** Returns true if view cells are already constructed.
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272 | */
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273 | virtual bool ViewCellsConstructed() const = 0;
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274 |
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275 | /** cast line segment to get a list of unique viewcells which are intersected
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276 | by this line segment
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277 | */
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278 | virtual int CastLineSegment(const Vector3 &origin,
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279 | const Vector3 &termination,
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280 | ViewCellContainer &viewcells
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281 | ) = 0;
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282 |
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283 | /** Tests if this line segment intersects a particular view cell.
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284 | */
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285 | virtual bool LineSegmentIntersects(const Vector3 &origin,
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286 | const Vector3 &termination,
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287 | ViewCell *viewCell) = 0;
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288 |
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289 | /** Returns a stats about the global pvs.
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290 | */
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291 | virtual void GetPvsStatistics(PvsStatistics &stat);
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292 |
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293 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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294 |
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295 | /** Get a viewcell containing the specified view point.
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296 | @param active if the active or elementary view cell should be returned.
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297 | */
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298 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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299 |
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300 | ViewCell *GetViewCell(const int idx) const {return mViewCells[idx];}
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301 |
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302 | virtual void PrintPvsStatistics(std::ostream &s);
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303 |
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304 | /** Updates pvs of the view cell hierarchy if necessary.
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305 | */
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306 | void UpdatePvs();
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307 |
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308 | /** Returns probability that view point lies in one view cell.
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309 | */
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310 | virtual float GetProbability(ViewCell *viewCell) = 0;
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311 |
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312 | /** Returns render cost of a single view cell given the render cost of an object.
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313 | */
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314 | float GetRendercost(ViewCell *viewCell) const;
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315 |
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316 | /** Returns reference to container of loaded / generated view cells.
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317 | */
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318 | ViewCellContainer &GetViewCells();
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319 |
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320 | /** Helper function used to split ray sets uniformly
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321 | into one that is currently used and the other that
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322 | is saved for later processing.
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323 | @param sourceRays the input ray set
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324 | @param maxSize the maximal number of rays that will be used
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325 | @param usedRays returns the used ray set
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326 | @param savedRays if not null, returns the saved ray set
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327 | */
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328 | void GetRaySets(const VssRayContainer &sourceRays,
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329 | const int maxSize,
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330 | VssRayContainer &usedRays,
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331 | VssRayContainer *savedRays = NULL) const;
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332 |
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333 | /** Returns accumulated area of all view cells.
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334 | */
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335 | float GetAccVcArea();
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336 |
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337 | /** Returns area of one view cell.
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338 | */
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339 | virtual float GetArea(ViewCell *viewCell) const;
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340 |
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341 | /** Returns volume of view cell.
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342 | */
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343 | virtual float GetVolume(ViewCell *viewCell) const;
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344 |
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345 | /** Sets the current renderer mainly for view cells statistics.
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346 | */
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347 | void SetRenderer(Renderer *renderer);
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348 |
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349 | /** Computes a (random) view point in the valid view space.
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350 | @returns true if valid view point was found
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351 | */
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352 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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353 |
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354 | virtual bool GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const;
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355 |
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356 | /** Returns true if this view point is in the valid view space.
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357 | */
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358 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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359 |
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360 | /** Sets a view space boundary.
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361 | */
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362 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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363 |
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364 | AxisAlignedBox3 GetViewSpaceBox() const;
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365 |
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366 | /** Creates mesh for this view cell.
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367 | */
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368 | virtual void CreateMesh(ViewCell *vc) = NULL;
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369 |
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370 | /** Writes view cells to disc.
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371 | */
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372 | virtual bool ExportViewCells(const string filename,
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373 | const bool exportPvs,
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374 | const ObjectContainer &objects);
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375 |
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376 | /** Casts beam to collect view cells.
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377 | */
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378 | virtual int CastBeam(Beam &beam);
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379 |
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380 | /** Checks if view cell is considered as valid.
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381 | */
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382 | virtual bool CheckValidity(ViewCell *vc,
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383 | int minPvsSize,
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384 | int maxPvsSize) const;
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385 |
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386 |
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387 | // resort pvss after a pass of the algorithm
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388 | void SortViewCellPvs();
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389 |
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390 | // map the ray intersection objects from triangles to high level objects...
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391 | void DeterminePvsObjects(VssRayContainer &rays,
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392 | const bool useHitObjects = false);
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393 |
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394 | /** Sets validity of view cell
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395 | */
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396 | virtual void SetValidity(ViewCell *vc,
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397 | int minPvsSize,
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398 | int maxPvsSize) const;
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399 |
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400 | /** sets validy of all viewcells
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401 | */
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402 | virtual void SetValidity(int minPvsSize,
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403 | int maxPvsSize) const;
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404 |
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405 |
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406 | /** Set valid viewcells in the range of pvs. sorts the viewcells
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407 | according to the pvs and then pickups those in the ranges
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408 | */
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409 | void SetValidityPercentage(const float minValid, const float maxValid);
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410 |
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411 | /** Returns number of valid view cells.
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412 | */
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413 | int CountValidViewcells() const;
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414 |
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415 | /** Returns maximal allowed pvs size.
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416 | */
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417 | int GetMaxPvsSize() const;
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418 |
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419 | /** Returns maximal allowed pvs size.
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420 | */
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421 | int GetMinPvsSize() const;
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422 |
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423 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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424 | where pvs is still considered valid.
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425 | */
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426 | float GetMaxPvsRatio() const;
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427 |
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428 | /** Exports view cell geometry.
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429 | */
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430 | virtual void ExportViewCellGeometry(Exporter *exporter,
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431 | ViewCell *vc,
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432 | const AxisAlignedBox3 *box,
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433 | const AxisAlignedPlane *clipPlane = NULL
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434 | ) const = 0;
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435 |
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436 | /** Brings the view cells into their final state, computes meshes and volume.
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437 | */
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438 | virtual void FinalizeViewCells(const bool createMesh);
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439 |
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440 | /** Evaluates statistics values on view cells.
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441 | */
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442 | void EvaluateRenderStatistics(float &totalRenderCost,
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443 | float &expectedRenderCost,
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444 | float &deviation,
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445 | float &variance,
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446 | float &totalPvs,
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447 | float &avgRenderCost);
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448 |
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449 | /** Returns hierarchy of the view cells.
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450 | */
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451 | ViewCellsTree *GetViewCellsTree();
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452 |
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453 | /** Collect candidates for the view cell merge.
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454 | */
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455 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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456 | vector<MergeCandidate> &candidates);
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457 |
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458 | /** Collects n view cells and stores it as the active view cells.
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459 | */
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460 | void CollectViewCells(const int n);
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461 |
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462 | /** Sets current view cells set to active,
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463 | i.e., the sampling is done in this view cell set.
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464 | */
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465 | void SetViewCellsActive();
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466 |
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467 | /** Evaluates render cost statistics of current view cell hierarchy.
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468 | */
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469 | virtual void EvalViewCellPartition();
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470 |
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471 | /** Sets maximal size of a view cell filter.
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472 | */
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473 | void SetMaxFilterSize(const int size);
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474 |
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475 | /** Returns maximal filter size.
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476 | */
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477 | int GetMaxFilterSize() const;
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478 |
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479 | /** Deletes interior nodes from the tree which have negative
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480 | merge cost set (local merge).
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481 | */
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482 | void DeleteLocalMergeTree(ViewCell *vc) const;
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483 |
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484 | /** Evaluautes histogram for a given number of view cells.
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485 | */
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486 | void EvalViewCellHistogram(const string filename, const int nViewCells);
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487 |
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488 | /** Evaluautes histogram for a given number of view cells.
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489 | */
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490 | void EvalViewCellHistogramForPvsSize(const string filename,
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491 | const int nViewCells);
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492 |
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493 | void EvalViewCellHistogramForPvsSize(const string filename,
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494 | ViewCellContainer &viewCells);
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495 |
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496 | /** Evaluates the render cost of a view cell.
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497 | */
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498 | static float EvalRenderCost(Intersectable *obj);
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499 |
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500 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
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501 | of the hierarchy.
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502 | */
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503 | void UpdateScalarPvsSize(ViewCell *vc,
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504 | const float pvsCost,
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505 | const int entriesInPvs) const;
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506 |
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507 | /** Returns bounding box of a view cell.
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508 | */
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509 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
|
---|
510 |
|
---|
511 | /** Exports bounding boxes of objects to file.
|
---|
512 | */
|
---|
513 | bool ExportBoundingBoxes(const string filename,
|
---|
514 | const ObjectContainer &objects) const;
|
---|
515 |
|
---|
516 | /** Load the bounding boxes into the container.
|
---|
517 | */
|
---|
518 | bool LoadBoundingBoxes(const string filename,
|
---|
519 | IndexedBoundingBoxContainer &boxes) const;
|
---|
520 |
|
---|
521 | /** Returns true if pvs should be exported together with the view cells.
|
---|
522 | */
|
---|
523 | bool GetExportPvs() const;
|
---|
524 |
|
---|
525 | /** Efficiently merges the view cells in the container.
|
---|
526 | */
|
---|
527 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
528 | const ViewCellContainer &viewCells) const;
|
---|
529 |
|
---|
530 | /** Compress the view cells.
|
---|
531 | */
|
---|
532 | virtual void CompressViewCells();
|
---|
533 |
|
---|
534 | ViewCell *GetViewCellById(const int id);
|
---|
535 |
|
---|
536 | /** Returns number of view cells.
|
---|
537 | */
|
---|
538 | int GetNumViewCells() const;
|
---|
539 |
|
---|
540 | bool GenerateRandomViewCells(ViewCellContainer &viewCells,
|
---|
541 | const int numViewCells);
|
---|
542 |
|
---|
543 | bool GenerateRandomViewCells(vector<ViewCellPoints *> &viewCells,
|
---|
544 | const int nViewCells,
|
---|
545 | const int nViewPoints);
|
---|
546 |
|
---|
547 |
|
---|
548 | bool GenerateViewPoints(ViewCell *viewCell,
|
---|
549 | const int numViewPoints,
|
---|
550 | SimpleRayContainer &viewPoints);
|
---|
551 |
|
---|
552 | bool ImportRandomViewCells(const string &filename,
|
---|
553 | vector<ViewCellPoints *> &viewCells);
|
---|
554 |
|
---|
555 | bool ImportRandomViewCells(const string &filename);
|
---|
556 |
|
---|
557 | bool ExportRandomViewCells(const string &filename,
|
---|
558 | const vector<ViewCellPoints *> &viewCells);
|
---|
559 |
|
---|
560 | bool ExportRandomViewCells(const string &filename);
|
---|
561 |
|
---|
562 | bool GenerateViewPoint(ViewCell *viewCell, SimpleRay &ray);
|
---|
563 |
|
---|
564 | bool IsValidViewSpace(ViewCell *vc);
|
---|
565 |
|
---|
566 |
|
---|
567 | //////////////
|
---|
568 | // static members
|
---|
569 |
|
---|
570 | /** Loads view cells from file. The view cells manager is created with
|
---|
571 | respect to the loaded view cells.
|
---|
572 |
|
---|
573 | @param filename the filename of the view cells
|
---|
574 | @param objects the scene objects
|
---|
575 | @param finalizeViewCells if the view cells should be post processed, i.e.,
|
---|
576 | a mesh is created representing the geometry
|
---|
577 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
578 | boxes: if there is a certain similarity of overlap between
|
---|
579 | bounding boxes, two tested candidate objects are considered
|
---|
580 | to be the same objects
|
---|
581 | @returns the view cells manager if loading was successful, false otherwise
|
---|
582 | */
|
---|
583 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
584 | ObjectContainer &pvsObjects,
|
---|
585 | ObjectContainer &preprocessorObjects,
|
---|
586 | bool finalizeViewCells = false,
|
---|
587 | BoundingBoxConverter *bconverter = NULL);
|
---|
588 |
|
---|
589 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
590 | ObjectContainer &pvsObjects,
|
---|
591 | bool finalizeViewCells = false,
|
---|
592 | BoundingBoxConverter *bconverter = NULL);
|
---|
593 |
|
---|
594 | ///////////////////////
|
---|
595 | // visiblity filter options
|
---|
596 |
|
---|
597 | // TODO: write own visibiltiy filter class
|
---|
598 | void ApplyFilter(KdTree *kdTree,
|
---|
599 | const float viewSpaceFilterSize,
|
---|
600 | const float spatialFilterSize);
|
---|
601 |
|
---|
602 | // new adaptive version of the filter
|
---|
603 | PvsFilterStatistics ApplyFilter2(ViewCell *viewCell,
|
---|
604 | const bool useViewSpaceFilter,
|
---|
605 | const float filterSize,
|
---|
606 | ObjectPvs &pvs,
|
---|
607 | vector<AxisAlignedBox3> *filteredBoxes = NULL);
|
---|
608 |
|
---|
609 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
610 | const float spatialFilterSize,
|
---|
611 | ObjectPvs &pvs);
|
---|
612 |
|
---|
613 | void ApplyFilter(ViewCell *viewCell,
|
---|
614 | KdTree *kdTree,
|
---|
615 | const float viewSpaceFilterSize,
|
---|
616 | const float spatialFilterSize,
|
---|
617 | ObjectPvs &pvs);
|
---|
618 |
|
---|
619 | float GetFilterWidth();
|
---|
620 |
|
---|
621 | float GetAbsFilterWidth();
|
---|
622 |
|
---|
623 | /** Returns the bounding box of filter width.
|
---|
624 | */
|
---|
625 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint,
|
---|
626 | const float width) const;
|
---|
627 |
|
---|
628 |
|
---|
629 |
|
---|
630 | //////////////////////////////////////////////////////////////////
|
---|
631 |
|
---|
632 |
|
---|
633 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
634 | */
|
---|
635 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
636 |
|
---|
637 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
638 | **/
|
---|
639 | bool GetStoreKdPVs() const;
|
---|
640 |
|
---|
641 | /** Exports single view cells for visualization.
|
---|
642 | @param objects the scene objects
|
---|
643 | @param limit the maximal number of output view cells
|
---|
644 | @param sortViewCells if the view cells should be sorted by pvs size
|
---|
645 | @param exportPvs if the pvs should also be exported
|
---|
646 | @param exportRays if sample rays should be exported as well
|
---|
647 | @param maxRays maximum number of rays to export
|
---|
648 | @param prefix the prefix for the output file
|
---|
649 | @param visRays additional rays
|
---|
650 | */
|
---|
651 | virtual void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
652 | const int maxViewCells,
|
---|
653 | const bool sortViewCells,
|
---|
654 | const bool exportPvs,
|
---|
655 | const bool exportRays,
|
---|
656 | const int maxRays,
|
---|
657 | const string prefix,
|
---|
658 | VssRayContainer *visRays = NULL) = NULL;
|
---|
659 |
|
---|
660 |
|
---|
661 | void ResetPvs();
|
---|
662 |
|
---|
663 | Preprocessor *GetPreprocessor() const {
|
---|
664 | return mPreprocessor;
|
---|
665 | }
|
---|
666 |
|
---|
667 | void SetPreprocessor(Preprocessor *p) {
|
---|
668 | mPreprocessor = p;
|
---|
669 | }
|
---|
670 |
|
---|
671 | vector<ViewCellPoints *> *GetViewCellPoints()
|
---|
672 | {
|
---|
673 | return &mViewCellPoints;
|
---|
674 | }
|
---|
675 |
|
---|
676 | void UpdatePvsForEvaluation();
|
---|
677 |
|
---|
678 | protected:
|
---|
679 |
|
---|
680 | void ComputeViewCellContribution(ViewCell *viewCell,
|
---|
681 | VssRay &ray,
|
---|
682 | Intersectable *obj,
|
---|
683 | const Vector3 &pt,
|
---|
684 | const bool addRays);
|
---|
685 |
|
---|
686 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
687 | const ViewCellContainer &viewCells,
|
---|
688 | const int leftIdx,
|
---|
689 | const int rightIdx) const;
|
---|
690 |
|
---|
691 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
692 | @returns number of view cells found
|
---|
693 | */
|
---|
694 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
695 | ViewCellContainer &viewCells) const;
|
---|
696 |
|
---|
697 | /** Tests the visibility filter functionality.
|
---|
698 | */
|
---|
699 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
700 |
|
---|
701 | /** If the view cells tree was already constructed or not.
|
---|
702 | */
|
---|
703 | bool ViewCellsTreeConstructed() const;
|
---|
704 |
|
---|
705 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
706 | */
|
---|
707 | int CastPassSamples(const int samplesPerPass,
|
---|
708 | const vector<int> &strategies,
|
---|
709 | VssRayContainer &vssRays) const;
|
---|
710 |
|
---|
711 | int CastEvaluationSamples(const int samplesPerPass,
|
---|
712 | VssRayContainer &passSamples);// const;
|
---|
713 |
|
---|
714 | /** Parse the options from the environment file.
|
---|
715 | */
|
---|
716 | void ParseEnvironment();
|
---|
717 |
|
---|
718 | /** Creates unique view cell ids.
|
---|
719 | */
|
---|
720 | void CreateUniqueViewCellIds();
|
---|
721 |
|
---|
722 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
723 | */
|
---|
724 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
725 |
|
---|
726 | /** Recollects view cells and resets statistics.
|
---|
727 | */
|
---|
728 | void ResetViewCells();
|
---|
729 |
|
---|
730 | /** Sets this view cell to active.
|
---|
731 | */
|
---|
732 | void SetViewCellActive(ViewCell *vc) const;
|
---|
733 |
|
---|
734 | /** Collects the view cells in the view cell container.
|
---|
735 | */
|
---|
736 | virtual void CollectViewCells() = 0;
|
---|
737 |
|
---|
738 | /** Evaluates view cells statistics and stores it in
|
---|
739 | mViewCellsStatistics.
|
---|
740 | */
|
---|
741 | void EvaluateViewCellsStats();
|
---|
742 |
|
---|
743 |
|
---|
744 | ///////////////////////
|
---|
745 | //-- helper functions for view cell visualization
|
---|
746 |
|
---|
747 | /** Exports the view cell partition.
|
---|
748 | */
|
---|
749 | void ExportViewCellsForViz(Exporter *exporter,
|
---|
750 | const AxisAlignedBox3 *box,
|
---|
751 | const bool colorCode,
|
---|
752 | const AxisAlignedPlane *clipPlane) const;
|
---|
753 |
|
---|
754 | /** Sets exporter color.
|
---|
755 | */
|
---|
756 | virtual void ExportColor(Exporter *exporter,
|
---|
757 | ViewCell *vc,
|
---|
758 | const bool colorCode) const;
|
---|
759 |
|
---|
760 | /** Creates meshes from the view cells.
|
---|
761 | */
|
---|
762 | void CreateViewCellMeshes();
|
---|
763 |
|
---|
764 | /** Creates clip plane for visualization.
|
---|
765 | */
|
---|
766 | void CreateClipPlane();
|
---|
767 |
|
---|
768 | AxisAlignedPlane *GetClipPlane();
|
---|
769 |
|
---|
770 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
771 |
|
---|
772 |
|
---|
773 | ///////////////////////
|
---|
774 |
|
---|
775 | /** Returns volume of the view space.
|
---|
776 | */
|
---|
777 | virtual float GetViewSpaceVolume();
|
---|
778 |
|
---|
779 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
780 | */
|
---|
781 | virtual void PrepareLoadedViewCells() {};
|
---|
782 |
|
---|
783 | /** Constructs local view cell merge hierarchy.
|
---|
784 | */
|
---|
785 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
786 | const ViewCellContainer &viewCells);
|
---|
787 |
|
---|
788 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
789 | current viewcell
|
---|
790 | */
|
---|
791 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
792 | const ViewCellContainer &viewCells);
|
---|
793 |
|
---|
794 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
795 | */
|
---|
796 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
797 |
|
---|
798 | virtual void ExportStats(const string &mergeStats);
|
---|
799 |
|
---|
800 |
|
---|
801 | ////////////////////////////////////////////////
|
---|
802 |
|
---|
803 |
|
---|
804 | ofstream mStats;
|
---|
805 | Preprocessor *mPreprocessor;
|
---|
806 |
|
---|
807 | /// if bounding boxes should be exported together with the view cells
|
---|
808 | bool mExportBboxesForPvs;
|
---|
809 |
|
---|
810 | /// the clip plane for visualization
|
---|
811 | AxisAlignedPlane mClipPlaneForViz;
|
---|
812 |
|
---|
813 | /// if the visualization is using the clip plane
|
---|
814 | bool mUseClipPlaneForViz;
|
---|
815 |
|
---|
816 | /// Renders the view cells.
|
---|
817 | Renderer *mRenderer;
|
---|
818 |
|
---|
819 | /// Loaded view cells
|
---|
820 | ViewCellContainer mViewCells;
|
---|
821 |
|
---|
822 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
823 | ViewCellsTree *mViewCellsTree;
|
---|
824 |
|
---|
825 | std::vector<int> mStrategies;
|
---|
826 |
|
---|
827 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
828 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
829 | pvs size is stored in interiors and not the pvs itself.
|
---|
830 | */
|
---|
831 | bool mViewCellPvsIsUpdated;
|
---|
832 |
|
---|
833 | /// maximum number of samples for the view cell construction
|
---|
834 | int mConstructionSamples;
|
---|
835 | int mSamplesPerPass;
|
---|
836 | int mInitialSamples;
|
---|
837 | int mPostProcessSamples;
|
---|
838 | int mVisualizationSamples;
|
---|
839 |
|
---|
840 | float mTotalAreaValid;
|
---|
841 | float mTotalArea;
|
---|
842 |
|
---|
843 | int mMaxPvsSize;
|
---|
844 | int mMinPvsSize;
|
---|
845 | float mMaxPvsRatio;
|
---|
846 |
|
---|
847 | int mSamplingType;
|
---|
848 | int mEvaluationSamplingType;
|
---|
849 | int mNumActiveViewCells;
|
---|
850 | bool mCompressViewCells;
|
---|
851 |
|
---|
852 | vector<ViewCellPoints *> mViewCellPoints;
|
---|
853 |
|
---|
854 | /// holds the current view cell statistics
|
---|
855 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
856 |
|
---|
857 | /// the scene bounding box
|
---|
858 | AxisAlignedBox3 mViewSpaceBox;
|
---|
859 |
|
---|
860 | /// if view cells should be exported
|
---|
861 | bool mExportViewCells;
|
---|
862 |
|
---|
863 | // if only valid view cells should be considered for processing
|
---|
864 | bool mOnlyValidViewCells;
|
---|
865 |
|
---|
866 | /// if rays should be used to collect merge candidates
|
---|
867 | bool mUseRaysForMerge;
|
---|
868 |
|
---|
869 | /// if there should be an additional merge step after the subdivision
|
---|
870 | bool mMergeViewCells;
|
---|
871 |
|
---|
872 | /// the width of the box filter
|
---|
873 | float mFilterWidth;
|
---|
874 | /// Maximal size of the filter in terms of contributing view cells
|
---|
875 | int mMaxFilterSize;
|
---|
876 |
|
---|
877 | // only for debugging
|
---|
878 | VssRayContainer storedRays;
|
---|
879 |
|
---|
880 | bool mUseKdPvs;
|
---|
881 | bool mUseKdPvsAfterFiltering;
|
---|
882 |
|
---|
883 | MixtureDistribution *mMixtureDistribution;
|
---|
884 |
|
---|
885 |
|
---|
886 | //////////////////
|
---|
887 | //-- visualization options
|
---|
888 |
|
---|
889 | /// color code for view cells visualization
|
---|
890 | bool mShowVisualization;
|
---|
891 | int mColorCode;
|
---|
892 | bool mExportGeometry;
|
---|
893 | bool mExportRays;
|
---|
894 | bool mViewCellsFinished;
|
---|
895 | bool mEvaluateViewCells;
|
---|
896 |
|
---|
897 | /// if pvs should be exported with view cells
|
---|
898 | bool mExportPvs;
|
---|
899 |
|
---|
900 | static int sRenderCostEvaluationType;
|
---|
901 |
|
---|
902 | /// if view cells geometry should be used from other sources
|
---|
903 | bool mUsePredefinedViewCells;
|
---|
904 |
|
---|
905 |
|
---|
906 | vector<PerViewCellStat> mPerViewCellStat;
|
---|
907 | SamplesStatistics mSamplesStat;
|
---|
908 | };
|
---|
909 |
|
---|
910 |
|
---|
911 | /** Manages different higher order operations on the view cells.
|
---|
912 | */
|
---|
913 | class BspViewCellsManager: public ViewCellsManager
|
---|
914 | {
|
---|
915 |
|
---|
916 | public:
|
---|
917 | /** Constructor taking the bsp tree and the number of samples
|
---|
918 | used to construct the bsp tree.
|
---|
919 | */
|
---|
920 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
921 |
|
---|
922 | ~BspViewCellsManager();
|
---|
923 |
|
---|
924 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
925 | const VssRayContainer &rays);
|
---|
926 |
|
---|
927 | int PostProcess(const ObjectContainer &objects,
|
---|
928 | const VssRayContainer &rays);
|
---|
929 |
|
---|
930 | void Visualize(const ObjectContainer &objects,
|
---|
931 | const VssRayContainer &sampleRays);
|
---|
932 |
|
---|
933 | int GetType() const;
|
---|
934 |
|
---|
935 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
936 |
|
---|
937 | bool ViewCellsConstructed() const;
|
---|
938 |
|
---|
939 | //void PrintStatistics(ostream &s) const;
|
---|
940 |
|
---|
941 | int CastLineSegment(const Vector3 &origin,
|
---|
942 | const Vector3 &termination,
|
---|
943 | ViewCellContainer &viewcells);
|
---|
944 |
|
---|
945 | /** Returns the probability that the view point lies
|
---|
946 | in this view cells.
|
---|
947 | */
|
---|
948 | float GetProbability(ViewCell *viewCell);
|
---|
949 |
|
---|
950 | /** Get a viewcell containing the specified point.
|
---|
951 | */
|
---|
952 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
953 |
|
---|
954 | /** Creates mesh for this view cell.
|
---|
955 | */
|
---|
956 | void CreateMesh(ViewCell *vc);
|
---|
957 |
|
---|
958 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
959 | ViewCell *vc,
|
---|
960 | const AxisAlignedBox3 *box,
|
---|
961 | const AxisAlignedPlane *clipPlane = NULL
|
---|
962 | ) const;
|
---|
963 |
|
---|
964 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
965 | vector<MergeCandidate> &candidates);
|
---|
966 |
|
---|
967 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
968 |
|
---|
969 | bool ExportViewCells(const string filename,
|
---|
970 | const bool exportPvs,
|
---|
971 | const ObjectContainer &objects);
|
---|
972 |
|
---|
973 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
974 | */
|
---|
975 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
976 |
|
---|
977 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
978 | const int maxViewCells,
|
---|
979 | const bool sortViewCells,
|
---|
980 | const bool exportPvs,
|
---|
981 | const bool exportRays,
|
---|
982 | const int maxRays,
|
---|
983 | const string prefix,
|
---|
984 | VssRayContainer *visRays = NULL);
|
---|
985 |
|
---|
986 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
987 | const Vector3 &termination,
|
---|
988 | ViewCell *viewCell);
|
---|
989 |
|
---|
990 | protected:
|
---|
991 |
|
---|
992 | void CollectViewCells();
|
---|
993 |
|
---|
994 | /// the BSP tree.
|
---|
995 | BspTree *mBspTree;
|
---|
996 | vector<BspRay *> mBspRays;
|
---|
997 |
|
---|
998 | private:
|
---|
999 |
|
---|
1000 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
1001 | */
|
---|
1002 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
1003 |
|
---|
1004 | /** Exports visualization of the BSP splits.
|
---|
1005 | */
|
---|
1006 | void ExportSplits(const ObjectContainer &objects);
|
---|
1007 |
|
---|
1008 | /** test if subdivision is valid in terms of volume / area.
|
---|
1009 | */
|
---|
1010 | void TestSubdivision();
|
---|
1011 | };
|
---|
1012 |
|
---|
1013 |
|
---|
1014 | /**
|
---|
1015 | Manages different higher order operations on the KD type view cells.
|
---|
1016 | */
|
---|
1017 | class KdViewCellsManager: public ViewCellsManager
|
---|
1018 | {
|
---|
1019 |
|
---|
1020 | public:
|
---|
1021 |
|
---|
1022 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
1023 |
|
---|
1024 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
1025 | const VssRayContainer &rays);
|
---|
1026 |
|
---|
1027 | int CastLineSegment(const Vector3 &origin,
|
---|
1028 | const Vector3 &termination,
|
---|
1029 | ViewCellContainer &viewcells);
|
---|
1030 |
|
---|
1031 | int PostProcess(const ObjectContainer &objects,
|
---|
1032 | const VssRayContainer &rays);
|
---|
1033 |
|
---|
1034 | void Visualize(const ObjectContainer &objects,
|
---|
1035 | const VssRayContainer &sampleRays);
|
---|
1036 |
|
---|
1037 | int GetType() const;
|
---|
1038 |
|
---|
1039 | bool ViewCellsConstructed() const;
|
---|
1040 |
|
---|
1041 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
1042 |
|
---|
1043 | /** Prints out statistics of this approach.
|
---|
1044 | */
|
---|
1045 | // virtual void PrintStatistics(ostream &s) const;
|
---|
1046 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
1047 | { return NULL; }
|
---|
1048 |
|
---|
1049 | float GetProbability(ViewCell *viewCell);
|
---|
1050 |
|
---|
1051 | void CreateMesh(ViewCell *vc);
|
---|
1052 |
|
---|
1053 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
1054 | ViewCell *vc,
|
---|
1055 | const AxisAlignedBox3 *box,
|
---|
1056 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
1057 |
|
---|
1058 |
|
---|
1059 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
1060 | vector<MergeCandidate> &candidates);
|
---|
1061 |
|
---|
1062 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
1063 | const int maxViewCells,
|
---|
1064 | const bool sortViewCells,
|
---|
1065 | const bool exportPvs,
|
---|
1066 | const bool exportRays,
|
---|
1067 | const int maxRays,
|
---|
1068 | const string prefix,
|
---|
1069 | VssRayContainer *visRays = NULL);
|
---|
1070 |
|
---|
1071 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
1072 | const Vector3 &termination,
|
---|
1073 | ViewCell *viewCell);
|
---|
1074 |
|
---|
1075 | protected:
|
---|
1076 |
|
---|
1077 | /** Collects view cells from a hierarchy.
|
---|
1078 | */
|
---|
1079 | void CollectViewCells();
|
---|
1080 |
|
---|
1081 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
1082 |
|
---|
1083 | ////////////////////////////////////////
|
---|
1084 |
|
---|
1085 | /// the BSP tree.
|
---|
1086 | KdTree *mKdTree;
|
---|
1087 |
|
---|
1088 | /// depth of the KD tree nodes with represent the view cells
|
---|
1089 | int mKdPvsDepth;
|
---|
1090 |
|
---|
1091 |
|
---|
1092 | };
|
---|
1093 |
|
---|
1094 |
|
---|
1095 | /** Manages different higher order operations on the view cells.
|
---|
1096 | */
|
---|
1097 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
1098 | {
|
---|
1099 |
|
---|
1100 | public:
|
---|
1101 |
|
---|
1102 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
1103 | ~VspBspViewCellsManager();
|
---|
1104 |
|
---|
1105 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
1106 | const VssRayContainer &rays);
|
---|
1107 |
|
---|
1108 | int PostProcess(const ObjectContainer &objects,
|
---|
1109 | const VssRayContainer &rays);
|
---|
1110 |
|
---|
1111 | void Visualize(const ObjectContainer &objects,
|
---|
1112 | const VssRayContainer &sampleRays);
|
---|
1113 |
|
---|
1114 | int GetType() const;
|
---|
1115 |
|
---|
1116 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
1117 |
|
---|
1118 | bool ViewCellsConstructed() const;
|
---|
1119 |
|
---|
1120 | int CastLineSegment(const Vector3 &origin,
|
---|
1121 | const Vector3 &termination,
|
---|
1122 | ViewCellContainer &viewcells);
|
---|
1123 |
|
---|
1124 | float GetProbability(ViewCell *viewCell);
|
---|
1125 |
|
---|
1126 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
1127 |
|
---|
1128 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
1129 |
|
---|
1130 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
1131 |
|
---|
1132 | void CreateMesh(ViewCell *vc);
|
---|
1133 |
|
---|
1134 | bool ExportViewCells(const string filename,
|
---|
1135 | const bool exportPvs,
|
---|
1136 | const ObjectContainer &objects);
|
---|
1137 |
|
---|
1138 | int CastBeam(Beam &beam);
|
---|
1139 |
|
---|
1140 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
1141 | ViewCell *vc,
|
---|
1142 | const AxisAlignedBox3 *box,
|
---|
1143 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
1144 |
|
---|
1145 |
|
---|
1146 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
1147 |
|
---|
1148 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
1149 | vector<MergeCandidate> &candidates);
|
---|
1150 |
|
---|
1151 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
1152 | const int maxViewCells,
|
---|
1153 | const bool sortViewCells,
|
---|
1154 | const bool exportPvs,
|
---|
1155 | const bool exportRays,
|
---|
1156 | const int maxRays,
|
---|
1157 | const string prefix,
|
---|
1158 | VssRayContainer *visRays = NULL);
|
---|
1159 |
|
---|
1160 |
|
---|
1161 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
1162 | const Vector3 &termination,
|
---|
1163 | ViewCell *viewCell);
|
---|
1164 |
|
---|
1165 | protected:
|
---|
1166 |
|
---|
1167 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
1168 | ViewCellContainer &viewCells) const;
|
---|
1169 |
|
---|
1170 | /** Merges view cells according to some criteria
|
---|
1171 | */
|
---|
1172 | void MergeViewCells(const VssRayContainer &rays,
|
---|
1173 | const ObjectContainer &objects);
|
---|
1174 |
|
---|
1175 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
1176 |
|
---|
1177 | void CollectViewCells();
|
---|
1178 |
|
---|
1179 | /** Returns maximal depth difference of view cell
|
---|
1180 | leaves in tree.
|
---|
1181 | */
|
---|
1182 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
1183 |
|
---|
1184 | /** Prepare view cells for use after loading them from disc.
|
---|
1185 | */
|
---|
1186 | void PrepareLoadedViewCells();
|
---|
1187 |
|
---|
1188 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
1189 | */
|
---|
1190 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
1191 |
|
---|
1192 | /// HACK for testing visibility filter functionality
|
---|
1193 | void TestFilter(const ObjectContainer &objects);
|
---|
1194 |
|
---|
1195 | /** Visualization of the pvs difference to exact visubility using
|
---|
1196 | from point queries.
|
---|
1197 | */
|
---|
1198 | void VisualizeWithFromPointQueries();
|
---|
1199 |
|
---|
1200 | /** Evaluate from point queries for the current scene.
|
---|
1201 | */
|
---|
1202 | void EvalFromPointQueries();
|
---|
1203 |
|
---|
1204 | /** Exports visualization of the BSP splits.
|
---|
1205 | */
|
---|
1206 | void ExportSplits(const ObjectContainer &objects,
|
---|
1207 | const VssRayContainer &rays);
|
---|
1208 |
|
---|
1209 |
|
---|
1210 | /////////////////////////
|
---|
1211 |
|
---|
1212 | /// the view space partition BSP tree.
|
---|
1213 | VspBspTree *mVspBspTree;
|
---|
1214 |
|
---|
1215 |
|
---|
1216 | private:
|
---|
1217 |
|
---|
1218 | /** test if subdivision is valid in terms of volume / area.
|
---|
1219 | */
|
---|
1220 | void TestSubdivision();
|
---|
1221 | };
|
---|
1222 |
|
---|
1223 | #define TEST_EVALUATION 0
|
---|
1224 |
|
---|
1225 | /**
|
---|
1226 | Manages different higher order operations on the view cells.
|
---|
1227 | */
|
---|
1228 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
1229 | {
|
---|
1230 | friend class ViewCellsParseHandlers;
|
---|
1231 |
|
---|
1232 | public:
|
---|
1233 |
|
---|
1234 | VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
1235 | const string &hierarchyType);
|
---|
1236 |
|
---|
1237 | ~VspOspViewCellsManager();
|
---|
1238 |
|
---|
1239 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
1240 | const VssRayContainer &rays);
|
---|
1241 |
|
---|
1242 | int PostProcess(const ObjectContainer &objects,
|
---|
1243 | const VssRayContainer &rays);
|
---|
1244 |
|
---|
1245 | void Visualize(const ObjectContainer &objects,
|
---|
1246 | const VssRayContainer &sampleRays);
|
---|
1247 |
|
---|
1248 | int GetType() const;
|
---|
1249 |
|
---|
1250 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
1251 |
|
---|
1252 | virtual Intersectable *GetIntersectable(
|
---|
1253 | const VssRay &ray, const bool isTermination) const;
|
---|
1254 |
|
---|
1255 | bool ViewCellsConstructed() const;
|
---|
1256 |
|
---|
1257 |
|
---|
1258 | int CastLineSegment(const Vector3 &origin,
|
---|
1259 | const Vector3 &termination,
|
---|
1260 | ViewCellContainer &viewcells);
|
---|
1261 |
|
---|
1262 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
1263 | const Vector3 &termination,
|
---|
1264 | ViewCell *viewCell);
|
---|
1265 |
|
---|
1266 | float GetProbability(ViewCell *viewCell);
|
---|
1267 |
|
---|
1268 | ViewCell *GetViewCell(const Vector3 &point,
|
---|
1269 | const bool active = false) const;
|
---|
1270 |
|
---|
1271 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
1272 |
|
---|
1273 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
1274 |
|
---|
1275 | void CreateMesh(ViewCell *vc);
|
---|
1276 |
|
---|
1277 | bool ExportViewCells(const string filename,
|
---|
1278 | const bool exportPvs,
|
---|
1279 | const ObjectContainer &objects);
|
---|
1280 |
|
---|
1281 | int CastBeam(Beam &beam);
|
---|
1282 |
|
---|
1283 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
1284 |
|
---|
1285 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
1286 | const int maxViewCells,
|
---|
1287 | const bool sortViewCells,
|
---|
1288 | const bool exportPvs,
|
---|
1289 | const bool exportRays,
|
---|
1290 | const int maxRays,
|
---|
1291 | const string prefix,
|
---|
1292 | VssRayContainer *visRays = NULL);
|
---|
1293 |
|
---|
1294 | float UpdateObjectCosts();
|
---|
1295 |
|
---|
1296 | virtual void FinalizeViewCells(const bool createMesh);
|
---|
1297 |
|
---|
1298 | protected:
|
---|
1299 |
|
---|
1300 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
1301 |
|
---|
1302 | #if 1//TEST_EVALUATION
|
---|
1303 | virtual void EvalViewCellPartition();
|
---|
1304 | #endif
|
---|
1305 |
|
---|
1306 | /** Exports view cell geometry.
|
---|
1307 | */
|
---|
1308 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
1309 | ViewCell *vc,
|
---|
1310 | const AxisAlignedBox3 *box,
|
---|
1311 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
1312 |
|
---|
1313 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
1314 | ViewCellContainer &viewCells) const;
|
---|
1315 |
|
---|
1316 | void CollectViewCells();
|
---|
1317 |
|
---|
1318 | virtual void CompressViewCells();
|
---|
1319 |
|
---|
1320 | /** Prepare view cells for use after loading them from disc.
|
---|
1321 | */
|
---|
1322 | void PrepareLoadedViewCells();
|
---|
1323 |
|
---|
1324 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
1325 | */
|
---|
1326 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
|
---|
1327 |
|
---|
1328 | /** Exports visualization of the PVS.
|
---|
1329 | */
|
---|
1330 | void ExportPvs(const ObjectContainer &objects, const VssRayContainer &rays);
|
---|
1331 |
|
---|
1332 | /** Returns a hierarchy manager of the given name.
|
---|
1333 | */
|
---|
1334 | static HierarchyManager *CreateHierarchyManager(const string &name);
|
---|
1335 |
|
---|
1336 | //void ExportStats(const string &mergeStats);
|
---|
1337 |
|
---|
1338 | /** collect objects intersecting a given spatial box
|
---|
1339 | */
|
---|
1340 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
|
---|
1341 |
|
---|
1342 |
|
---|
1343 | /////////////////////////////////////////
|
---|
1344 |
|
---|
1345 | bool mCompressObjects;
|
---|
1346 |
|
---|
1347 | HierarchyManager *mHierarchyManager;
|
---|
1348 | };
|
---|
1349 |
|
---|
1350 |
|
---|
1351 | }
|
---|
1352 |
|
---|
1353 | #endif
|
---|