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