[440] | 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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[2105] | 5 | #include "SimpleRay.h"
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[440] | 6 | #include "VssRay.h"
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| 7 | #include "Containers.h"
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[475] | 8 | #include "ViewCell.h"
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[440] | 9 |
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[2176] | 10 |
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[860] | 11 | namespace GtpVisibilityPreprocessor {
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| 12 |
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[440] | 13 | class ViewCell;
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| 14 | class Intersectable;
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| 15 | class RenderSimulator;
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[480] | 16 | class Renderer;
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[440] | 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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[1006] | 22 | class VspOspTree;
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[440] | 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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[448] | 27 | class BspLeaf;
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[475] | 28 | class ViewCellsStatistics;
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[482] | 29 | class Exporter;
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[532] | 30 | class Beam;
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[570] | 31 | class Preprocessor;
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[580] | 32 | class ViewCellsTree;
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| 33 | class MergeCandidate;
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[931] | 34 | class BoundingBoxConverter;
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[1021] | 35 | class VspTree;
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| 36 | class OspTree;
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| 37 | class VspNode;
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[1027] | 38 | class HierarchyManager;
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[1259] | 39 | class BvHierarchy;
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[1264] | 40 | class ViewCellsTree;
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[1786] | 41 | class ViewCell;
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[1903] | 42 | class MixtureDistribution;
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[1047] | 43 | struct AxisAlignedPlane;
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[475] | 44 | struct BspRay;
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[2116] | 45 | class BspTree;
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[475] | 46 |
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[1903] | 47 |
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[2015] | 48 |
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[2116] | 49 | struct PvsFilterStatistics
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| 50 | {
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[1773] | 51 | PvsFilterStatistics():
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[2116] | 52 | mAvgFilterRadius(0.0f), mLocalFilterCount(0), mGlobalFilterCount(0) {}
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| 53 |
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[1761] | 54 | float mAvgFilterRadius;
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| 55 | int mLocalFilterCount;
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| 56 | int mGlobalFilterCount;
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[2116] | 57 | };
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| 58 |
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[1145] | 59 | /** Probably Visible Set
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| 60 | */
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[697] | 61 | class PrVs
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| 62 | {
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| 63 | public:
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[2116] | 64 | /// root of view cells tree
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| 65 | ViewCell *mViewCell;
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[704] | 66 |
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[2116] | 67 | // input parameter is the render budget for the PrVs
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| 68 | float mRenderBudget;
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[677] | 69 |
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[2116] | 70 | // some characteristic values could be stored as well
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[677] | 71 | };
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| 72 |
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[1786] | 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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[2017] | 81 | typedef pair<ViewCell *, SimpleRayContainer> ViewCellPoints;
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[1786] | 82 |
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[850] | 83 | /** Manages different higher order operations on the view cells.
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[440] | 84 | */
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| 85 | class ViewCellsManager
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| 86 | {
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| 87 | public:
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[1983] | 88 |
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[2116] | 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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[1983] | 93 | };
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| 94 |
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[2116] | 95 | struct SamplesStatistics
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[728] | 96 | {
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[2116] | 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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[1974] | 109 |
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[2116] | 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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[2205] | 115 | float renderCost;
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[2116] | 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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[2224] | 127 |
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| 128 | float mem;
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[1545] | 129 | };
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[1942] | 130 |
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[728] | 131 | /// view cell container types
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[1021] | 132 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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[466] | 133 |
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[931] | 134 | /// render cost evaluation type
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[728] | 135 | enum {PER_OBJECT, PER_TRIANGLE};
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| 136 |
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[1545] | 137 | friend class X3dViewCellsParseHandlers;
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[1709] | 138 |
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[1004] | 139 | /** Default constructor.
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[440] | 140 | */
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[1264] | 141 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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[440] | 142 |
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[462] | 143 | virtual ~ViewCellsManager();
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[440] | 144 |
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[527] | 145 | /** Constructs view cells container taking a preprocessor
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[570] | 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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[527] | 149 |
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[440] | 150 | /** Constructs view cell container with a given number of samples.
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| 151 | */
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[1709] | 152 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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| 153 | const VssRayContainer &rays) = 0;
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[440] | 154 |
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[441] | 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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[563] | 159 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 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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[697] | 163 | float ComputeSampleContributions(const VssRayContainer &rays,
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[1155] | 164 | const bool addContributions,
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[1990] | 165 | const bool storeViewCells,
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| 166 | const bool useHitObject = false);
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[440] | 167 |
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[475] | 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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[1570] | 170 | @param addSample if sample should be added to the pvs
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| 171 |
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[475] | 172 | @returns number of sample contributions
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| 173 | */
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[1159] | 174 | virtual float ComputeSampleContribution(VssRay &ray,
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[1981] | 175 | const bool addContributions,
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[1990] | 176 | const bool storeViewCells,
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| 177 | const bool useHitObject = false);
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[563] | 178 |
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[1977] | 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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[1981] | 182 | const bool addContributions,
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[1990] | 183 | ViewCell *currentViewCell,
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| 184 | const bool useHitObject = false);
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[563] | 185 |
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[452] | 186 | /** Prints out statistics of the view cells.
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| 187 | */
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[2176] | 188 | virtual void PrintStatistics(std::ostream &s) const;
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[452] | 189 |
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[440] | 190 | /** Post processes view cells givemŽa number of rays.
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| 191 | */
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[475] | 192 | virtual int PostProcess(const ObjectContainer &objects,
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| 193 | const VssRayContainer &rays) = 0;
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[440] | 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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[466] | 198 | const VssRayContainer &sampleRays) = 0;
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[440] | 199 |
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[1982] | 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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[1737] | 203 |
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[440] | 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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[463] | 208 | /** Load the input viewcells. The input viewcells should be given as a collection
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[1545] | 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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[463] | 212 |
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| 213 | @param filename file to load
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| 214 | @return true on success
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[1982] | 215 | */
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| 216 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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[577] | 217 |
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[440] | 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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[582] | 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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[440] | 228 |
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[1545] | 229 | /** Generates view cell of the type specified by this manager
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[440] | 230 | */
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[580] | 231 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 232 |
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[1545] | 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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[440] | 237 | */
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[1545] | 238 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[440] | 239 |
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[1982] | 240 | virtual Intersectable *GetIntersectable(const VssRay &ray, const bool isTermination) const;
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[1743] | 241 |
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[440] | 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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[574] | 247 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 248 | */
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| 249 | void SetConstructionSamples(const int constructionSamples);
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| 250 |
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[574] | 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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[440] | 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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[1002] | 271 | /** Returns true if view cells are already constructed.
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[440] | 272 | */
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| 273 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 274 |
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[477] | 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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[1977] | 278 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 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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[1977] | 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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[1294] | 289 | /** Returns a stats about the global pvs.
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| 290 | */
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[477] | 291 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 292 |
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[904] | 293 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[677] | 294 |
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[2111] | 295 | /** Get a viewcell containing the specified view point.
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[879] | 296 | @param active if the active or elementary view cell should be returned.
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[697] | 297 | */
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[879] | 298 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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[492] | 299 |
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[1982] | 300 | ViewCell *GetViewCell(const int idx) const {return mViewCells[idx];}
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| 301 |
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[2176] | 302 | virtual void PrintPvsStatistics(std::ostream &s);
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[467] | 303 |
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[719] | 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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[477] | 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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[468] | 311 |
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[477] | 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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[728] | 314 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 315 |
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[720] | 316 | /** Returns reference to container of loaded / generated view cells.
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[477] | 317 | */
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| 318 | ViewCellContainer &GetViewCells();
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[468] | 319 |
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[485] | 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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[477] | 327 | */
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| 328 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 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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[480] | 333 | /** Returns accumulated area of all view cells.
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| 334 | */
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| 335 | float GetAccVcArea();
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[470] | 336 |
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[480] | 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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[470] | 340 |
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[551] | 341 | /** Returns volume of view cell.
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[480] | 342 | */
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| 343 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 344 |
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[480] | 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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[487] | 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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[1867] | 353 |
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[1982] | 354 | virtual bool GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const;
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[487] | 355 |
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[490] | 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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[487] | 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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[519] | 364 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 365 |
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[503] | 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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[487] | 369 |
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[508] | 370 | /** Writes view cells to disc.
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| 371 | */
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[1027] | 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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[508] | 375 |
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[532] | 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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[547] | 380 | /** Checks if view cell is considered as valid.
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| 381 | */
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[561] | 382 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 383 | int minPvsSize,
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| 384 | int maxPvsSize) const;
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[547] | 385 |
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[2015] | 386 |
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[2117] | 387 | // resort pvss after a pass of the algorithm
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| 388 | void SortViewCellPvs();
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[2015] | 389 |
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[2117] | 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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[2021] | 393 |
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[562] | 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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[710] | 400 | /** sets validy of all viewcells
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| 401 | */
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[810] | 402 | virtual void SetValidity(int minPvsSize,
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[569] | 403 | int maxPvsSize) const;
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| 404 |
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[609] | 405 |
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[2117] | 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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[710] | 409 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 410 |
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[1545] | 411 | /** Returns number of valid view cells.
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| 412 | */
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[609] | 413 | int CountValidViewcells() const;
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| 414 |
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[547] | 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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[562] | 419 | /** Returns maximal allowed pvs size.
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| 420 | */
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| 421 | int GetMinPvsSize() const;
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[2117] | 422 |
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[561] | 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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[2117] | 427 |
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[547] | 428 | /** Exports view cell geometry.
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| 429 | */
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[2117] | 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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[547] | 435 |
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[860] | 436 | /** Brings the view cells into their final state, computes meshes and volume.
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| 437 | */
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[551] | 438 | virtual void FinalizeViewCells(const bool createMesh);
|
---|
| 439 |
|
---|
[579] | 440 | /** Evaluates statistics values on view cells.
|
---|
| 441 | */
|
---|
[580] | 442 | void EvaluateRenderStatistics(float &totalRenderCost,
|
---|
| 443 | float &expectedRenderCost,
|
---|
| 444 | float &deviation,
|
---|
| 445 | float &variance,
|
---|
[1709] | 446 | float &totalPvs,
|
---|
[580] | 447 | float &avgRenderCost);
|
---|
[579] | 448 |
|
---|
[580] | 449 | /** Returns hierarchy of the view cells.
|
---|
| 450 | */
|
---|
| 451 | ViewCellsTree *GetViewCellsTree();
|
---|
| 452 |
|
---|
[1545] | 453 | /** Collect candidates for the view cell merge.
|
---|
| 454 | */
|
---|
[581] | 455 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
[1022] | 456 | vector<MergeCandidate> &candidates);
|
---|
[580] | 457 |
|
---|
[1294] | 458 | /** Collects n view cells and stores it as the active view cells.
|
---|
| 459 | */
|
---|
[610] | 460 | void CollectViewCells(const int n);
|
---|
| 461 |
|
---|
[1686] | 462 | /** Sets current view cells set to active,
|
---|
| 463 | i.e., the sampling is done in this view cell set.
|
---|
[660] | 464 | */
|
---|
| 465 | void SetViewCellsActive();
|
---|
[599] | 466 |
|
---|
[1145] | 467 | /** Evaluates render cost statistics of current view cell hierarchy.
|
---|
[660] | 468 | */
|
---|
[1178] | 469 | virtual void EvalViewCellPartition();
|
---|
[660] | 470 |
|
---|
[728] | 471 | /** Sets maximal size of a view cell filter.
|
---|
| 472 | */
|
---|
| 473 | void SetMaxFilterSize(const int size);
|
---|
[697] | 474 |
|
---|
[840] | 475 | /** Returns maximal filter size.
|
---|
| 476 | */
|
---|
| 477 | int GetMaxFilterSize() const;
|
---|
[746] | 478 |
|
---|
[1686] | 479 | /** Deletes interior nodes from the tree which have negative
|
---|
| 480 | merge cost set (local merge).
|
---|
[840] | 481 | */
|
---|
| 482 | void DeleteLocalMergeTree(ViewCell *vc) const;
|
---|
[713] | 483 |
|
---|
[728] | 484 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 485 | */
|
---|
| 486 | void EvalViewCellHistogram(const string filename, const int nViewCells);
|
---|
| 487 |
|
---|
[735] | 488 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 489 | */
|
---|
[2117] | 490 | void EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 491 | const int nViewCells);
|
---|
[735] | 492 |
|
---|
[1919] | 493 | void EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 494 | ViewCellContainer &viewCells);
|
---|
| 495 |
|
---|
[728] | 496 | /** Evaluates the render cost of a view cell.
|
---|
| 497 | */
|
---|
[1703] | 498 | static float EvalRenderCost(Intersectable *obj);
|
---|
[1002] | 499 |
|
---|
| 500 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
|
---|
| 501 | of the hierarchy.
|
---|
| 502 | */
|
---|
[2117] | 503 | void UpdateScalarPvsSize(ViewCell *vc,
|
---|
| 504 | const float pvsCost,
|
---|
| 505 | const int entriesInPvs) const;
|
---|
[728] | 506 |
|
---|
[870] | 507 | /** Returns bounding box of a view cell.
|
---|
| 508 | */
|
---|
| 509 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
|
---|
[859] | 510 |
|
---|
[840] | 511 | /** Exports bounding boxes of objects to file.
|
---|
| 512 | */
|
---|
[2117] | 513 | bool ExportBoundingBoxes(const string filename,
|
---|
| 514 | const ObjectContainer &objects) const;
|
---|
[931] | 515 |
|
---|
[850] | 516 | /** Load the bounding boxes into the container.
|
---|
| 517 | */
|
---|
[2117] | 518 | bool LoadBoundingBoxes(const string filename,
|
---|
| 519 | IndexedBoundingBoxContainer &boxes) const;
|
---|
[840] | 520 |
|
---|
[1002] | 521 | /** Returns true if pvs should be exported together with the view cells.
|
---|
| 522 | */
|
---|
| 523 | bool GetExportPvs() const;
|
---|
[870] | 524 |
|
---|
[1786] | 525 | /** Efficiently merges the view cells in the container.
|
---|
| 526 | */
|
---|
[1787] | 527 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 528 | const ViewCellContainer &viewCells) const;
|
---|
[1786] | 529 |
|
---|
[2117] | 530 | /** Compress the view cells.
|
---|
| 531 | */
|
---|
[1845] | 532 | virtual void CompressViewCells();
|
---|
| 533 |
|
---|
[2017] | 534 | ViewCell *GetViewCellById(const int id);
|
---|
| 535 |
|
---|
| 536 | /** Returns number of view cells.
|
---|
| 537 | */
|
---|
[1982] | 538 | int GetNumViewCells() const;
|
---|
| 539 |
|
---|
[2017] | 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 |
|
---|
[2048] | 555 | bool ImportRandomViewCells(const string &filename);
|
---|
[2017] | 556 |
|
---|
| 557 | bool ExportRandomViewCells(const string &filename,
|
---|
| 558 | const vector<ViewCellPoints *> &viewCells);
|
---|
| 559 |
|
---|
[2048] | 560 | bool ExportRandomViewCells(const string &filename);
|
---|
| 561 |
|
---|
[2017] | 562 | bool GenerateViewPoint(ViewCell *viewCell, SimpleRay &ray);
|
---|
| 563 |
|
---|
| 564 | bool IsValidViewSpace(ViewCell *vc);
|
---|
| 565 |
|
---|
[2048] | 566 |
|
---|
[2017] | 567 | //////////////
|
---|
[1582] | 568 | // static members
|
---|
| 569 |
|
---|
| 570 | /** Loads view cells from file. The view cells manager is created with
|
---|
| 571 | respect to the loaded view cells.
|
---|
[870] | 572 |
|
---|
[1582] | 573 | @param filename the filename of the view cells
|
---|
| 574 | @param objects the scene objects
|
---|
[2115] | 575 | @param finalizeViewCells if the view cells should be post processed, i.e.,
|
---|
[2048] | 576 | a mesh is created representing the geometry
|
---|
[1582] | 577 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
[2048] | 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
|
---|
[1582] | 581 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 582 | */
|
---|
| 583 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
[2113] | 584 | ObjectContainer &pvsObjects,
|
---|
| 585 | ObjectContainer &preprocessorObjects,
|
---|
[1676] | 586 | bool finalizeViewCells = false,
|
---|
[1582] | 587 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 588 |
|
---|
[2115] | 589 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 590 | ObjectContainer &pvsObjects,
|
---|
| 591 | bool finalizeViewCells = false,
|
---|
| 592 | BoundingBoxConverter *bconverter = NULL);
|
---|
[904] | 593 |
|
---|
[2113] | 594 | ///////////////////////
|
---|
[931] | 595 | // visiblity filter options
|
---|
[1294] | 596 |
|
---|
[931] | 597 | // TODO: write own visibiltiy filter class
|
---|
[2048] | 598 | void ApplyFilter(KdTree *kdTree,
|
---|
| 599 | const float viewSpaceFilterSize,
|
---|
| 600 | const float spatialFilterSize);
|
---|
[904] | 601 |
|
---|
[2048] | 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);
|
---|
[1715] | 608 |
|
---|
[931] | 609 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 610 | const float spatialFilterSize,
|
---|
| 611 | ObjectPvs &pvs);
|
---|
[480] | 612 |
|
---|
[931] | 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 |
|
---|
[697] | 623 | /** Returns the bounding box of filter width.
|
---|
| 624 | */
|
---|
[2117] | 625 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 626 | const float width) const;
|
---|
[609] | 627 |
|
---|
[2199] | 628 |
|
---|
| 629 |
|
---|
[1294] | 630 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 631 |
|
---|
[2048] | 632 |
|
---|
[1155] | 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 |
|
---|
[1570] | 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
|
---|
[1580] | 647 | @param maxRays maximum number of rays to export
|
---|
| 648 | @param prefix the prefix for the output file
|
---|
[1570] | 649 | @param visRays additional rays
|
---|
| 650 | */
|
---|
[1686] | 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;
|
---|
[1570] | 659 |
|
---|
[1932] | 660 |
|
---|
[2048] | 661 | void ResetPvs();
|
---|
[1580] | 662 |
|
---|
[1932] | 663 | Preprocessor *GetPreprocessor() const {
|
---|
| 664 | return mPreprocessor;
|
---|
| 665 | }
|
---|
[1580] | 666 |
|
---|
[1932] | 667 | void SetPreprocessor(Preprocessor *p) {
|
---|
| 668 | mPreprocessor = p;
|
---|
| 669 | }
|
---|
[1608] | 670 |
|
---|
[2048] | 671 | vector<ViewCellPoints *> *GetViewCellPoints()
|
---|
| 672 | {
|
---|
| 673 | return &mViewCellPoints;
|
---|
| 674 | }
|
---|
| 675 |
|
---|
[1932] | 676 | void UpdatePvsForEvaluation();
|
---|
| 677 |
|
---|
[931] | 678 | protected:
|
---|
[1145] | 679 |
|
---|
[1932] | 680 | void ComputeViewCellContribution(ViewCell *viewCell,
|
---|
| 681 | VssRay &ray,
|
---|
| 682 | Intersectable *obj,
|
---|
| 683 | const Vector3 &pt,
|
---|
| 684 | const bool addRays);
|
---|
| 685 |
|
---|
[1787] | 686 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 687 | const ViewCellContainer &viewCells,
|
---|
| 688 | const int leftIdx,
|
---|
| 689 | const int rightIdx) const;
|
---|
| 690 |
|
---|
[697] | 691 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
[1932] | 692 | @returns number of view cells found
|
---|
[697] | 693 | */
|
---|
[710] | 694 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 695 | ViewCellContainer &viewCells) const;
|
---|
[697] | 696 |
|
---|
[880] | 697 | /** Tests the visibility filter functionality.
|
---|
| 698 | */
|
---|
[697] | 699 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 700 |
|
---|
[931] | 701 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 702 | */
|
---|
| 703 | bool ViewCellsTreeConstructed() const;
|
---|
| 704 |
|
---|
[1294] | 705 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 706 | */
|
---|
[574] | 707 | int CastPassSamples(const int samplesPerPass,
|
---|
[1768] | 708 | const vector<int> &strategies,
|
---|
[574] | 709 | VssRayContainer &vssRays) const;
|
---|
[573] | 710 |
|
---|
[2199] | 711 | int CastEvaluationSamples(const int samplesPerPass,
|
---|
| 712 | VssRayContainer &passSamples);// const;
|
---|
[1903] | 713 |
|
---|
[931] | 714 | /** Parse the options from the environment file.
|
---|
| 715 | */
|
---|
[482] | 716 | void ParseEnvironment();
|
---|
| 717 |
|
---|
[508] | 718 | /** Creates unique view cell ids.
|
---|
| 719 | */
|
---|
| 720 | void CreateUniqueViewCellIds();
|
---|
[547] | 721 |
|
---|
[551] | 722 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 723 | */
|
---|
| 724 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 725 |
|
---|
[480] | 726 | /** Recollects view cells and resets statistics.
|
---|
| 727 | */
|
---|
| 728 | void ResetViewCells();
|
---|
[1932] | 729 |
|
---|
[1707] | 730 | /** Sets this view cell to active.
|
---|
| 731 | */
|
---|
| 732 | void SetViewCellActive(ViewCell *vc) const;
|
---|
| 733 |
|
---|
[480] | 734 | /** Collects the view cells in the view cell container.
|
---|
| 735 | */
|
---|
| 736 | virtual void CollectViewCells() = 0;
|
---|
[1932] | 737 |
|
---|
[479] | 738 | /** Evaluates view cells statistics and stores it in
|
---|
[1932] | 739 | mViewCellsStatistics.
|
---|
[479] | 740 | */
|
---|
| 741 | void EvaluateViewCellsStats();
|
---|
[482] | 742 |
|
---|
[1932] | 743 |
|
---|
[1416] | 744 | ///////////////////////
|
---|
[482] | 745 | //-- helper functions for view cell visualization
|
---|
| 746 |
|
---|
| 747 | /** Exports the view cell partition.
|
---|
| 748 | */
|
---|
[1686] | 749 | void ExportViewCellsForViz(Exporter *exporter,
|
---|
| 750 | const AxisAlignedBox3 *box,
|
---|
[1760] | 751 | const bool colorCode,
|
---|
[1932] | 752 | const AxisAlignedPlane *clipPlane) const;
|
---|
[482] | 753 |
|
---|
| 754 | /** Sets exporter color.
|
---|
| 755 | */
|
---|
[1773] | 756 | virtual void ExportColor(Exporter *exporter,
|
---|
| 757 | ViewCell *vc,
|
---|
| 758 | const bool colorCode) const;
|
---|
[1932] | 759 |
|
---|
[1416] | 760 | /** Creates meshes from the view cells.
|
---|
| 761 | */
|
---|
| 762 | void CreateViewCellMeshes();
|
---|
[1545] | 763 |
|
---|
[1932] | 764 | /** Creates clip plane for visualization.
|
---|
[1416] | 765 | */
|
---|
| 766 | void CreateClipPlane();
|
---|
[482] | 767 |
|
---|
[1416] | 768 | AxisAlignedPlane *GetClipPlane();
|
---|
[1932] | 769 |
|
---|
[1551] | 770 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 771 |
|
---|
[2048] | 772 |
|
---|
[1416] | 773 | ///////////////////////
|
---|
| 774 |
|
---|
[1002] | 775 | /** Returns volume of the view space.
|
---|
| 776 | */
|
---|
[557] | 777 | virtual float GetViewSpaceVolume();
|
---|
[2048] | 778 |
|
---|
[1416] | 779 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 780 | */
|
---|
[577] | 781 | virtual void PrepareLoadedViewCells() {};
|
---|
[2048] | 782 |
|
---|
[704] | 783 | /** Constructs local view cell merge hierarchy.
|
---|
| 784 | */
|
---|
| 785 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
[1932] | 786 | const ViewCellContainer &viewCells);
|
---|
[704] | 787 |
|
---|
[713] | 788 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
[2048] | 789 | current viewcell
|
---|
[713] | 790 | */
|
---|
| 791 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 792 | const ViewCellContainer &viewCells);
|
---|
| 793 |
|
---|
[860] | 794 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 795 | */
|
---|
[1168] | 796 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[752] | 797 |
|
---|
[1679] | 798 | virtual void ExportStats(const string &mergeStats);
|
---|
[1582] | 799 |
|
---|
[2048] | 800 |
|
---|
[979] | 801 | ////////////////////////////////////////////////
|
---|
[752] | 802 |
|
---|
[2048] | 803 |
|
---|
[2199] | 804 | ofstream mStats;
|
---|
[1145] | 805 | Preprocessor *mPreprocessor;
|
---|
[1902] | 806 |
|
---|
[1145] | 807 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 808 | bool mExportBboxesForPvs;
|
---|
[1902] | 809 |
|
---|
[1416] | 810 | /// the clip plane for visualization
|
---|
| 811 | AxisAlignedPlane mClipPlaneForViz;
|
---|
[1902] | 812 |
|
---|
[1416] | 813 | /// if the visualization is using the clip plane
|
---|
[660] | 814 | bool mUseClipPlaneForViz;
|
---|
[1902] | 815 |
|
---|
[480] | 816 | /// Renders the view cells.
|
---|
| 817 | Renderer *mRenderer;
|
---|
[1902] | 818 |
|
---|
[440] | 819 | /// Loaded view cells
|
---|
[469] | 820 | ViewCellContainer mViewCells;
|
---|
[1902] | 821 |
|
---|
[1416] | 822 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 823 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 824 |
|
---|
[1773] | 825 | std::vector<int> mStrategies;
|
---|
| 826 |
|
---|
[1416] | 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 | */
|
---|
[719] | 831 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 832 |
|
---|
[1416] | 833 | /// maximum number of samples for the view cell construction
|
---|
[440] | 834 | int mConstructionSamples;
|
---|
[574] | 835 | int mSamplesPerPass;
|
---|
| 836 | int mInitialSamples;
|
---|
[440] | 837 | int mPostProcessSamples;
|
---|
| 838 | int mVisualizationSamples;
|
---|
[441] | 839 |
|
---|
[470] | 840 | float mTotalAreaValid;
|
---|
| 841 | float mTotalArea;
|
---|
[475] | 842 |
|
---|
[547] | 843 | int mMaxPvsSize;
|
---|
[562] | 844 | int mMinPvsSize;
|
---|
[547] | 845 | float mMaxPvsRatio;
|
---|
| 846 |
|
---|
[660] | 847 | int mSamplingType;
|
---|
[722] | 848 | int mEvaluationSamplingType;
|
---|
[600] | 849 | int mNumActiveViewCells;
|
---|
[586] | 850 | bool mCompressViewCells;
|
---|
| 851 |
|
---|
[2048] | 852 | vector<ViewCellPoints *> mViewCellPoints;
|
---|
| 853 |
|
---|
[1002] | 854 | /// holds the current view cell statistics
|
---|
[660] | 855 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[2048] | 856 |
|
---|
[487] | 857 | /// the scene bounding box
|
---|
[542] | 858 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 859 |
|
---|
[508] | 860 | /// if view cells should be exported
|
---|
| 861 | bool mExportViewCells;
|
---|
[547] | 862 |
|
---|
[1002] | 863 | // if only valid view cells should be considered for processing
|
---|
[564] | 864 | bool mOnlyValidViewCells;
|
---|
[547] | 865 |
|
---|
[580] | 866 | /// if rays should be used to collect merge candidates
|
---|
| 867 | bool mUseRaysForMerge;
|
---|
[1021] | 868 |
|
---|
[1002] | 869 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 870 | bool mMergeViewCells;
|
---|
[697] | 871 |
|
---|
| 872 | /// the width of the box filter
|
---|
| 873 | float mFilterWidth;
|
---|
[1570] | 874 | /// Maximal size of the filter in terms of contributing view cells
|
---|
[697] | 875 | int mMaxFilterSize;
|
---|
[1570] | 876 |
|
---|
[1576] | 877 | // only for debugging
|
---|
[1686] | 878 | VssRayContainer storedRays;
|
---|
| 879 |
|
---|
[1902] | 880 | bool mUseKdPvs;
|
---|
[1974] | 881 | bool mUseKdPvsAfterFiltering;
|
---|
[1902] | 882 |
|
---|
[1903] | 883 | MixtureDistribution *mMixtureDistribution;
|
---|
| 884 |
|
---|
[2048] | 885 |
|
---|
[1545] | 886 | //////////////////
|
---|
[487] | 887 | //-- visualization options
|
---|
| 888 |
|
---|
[1002] | 889 | /// color code for view cells visualization
|
---|
[1570] | 890 | bool mShowVisualization;
|
---|
[487] | 891 | int mColorCode;
|
---|
| 892 | bool mExportGeometry;
|
---|
| 893 | bool mExportRays;
|
---|
[517] | 894 | bool mViewCellsFinished;
|
---|
[664] | 895 | bool mEvaluateViewCells;
|
---|
[844] | 896 |
|
---|
| 897 | /// if pvs should be exported with view cells
|
---|
| 898 | bool mExportPvs;
|
---|
[1155] | 899 |
|
---|
[1703] | 900 | static int sRenderCostEvaluationType;
|
---|
| 901 |
|
---|
| 902 | /// if view cells geometry should be used from other sources
|
---|
[1545] | 903 | bool mUsePredefinedViewCells;
|
---|
[1942] | 904 |
|
---|
| 905 |
|
---|
| 906 | vector<PerViewCellStat> mPerViewCellStat;
|
---|
[1983] | 907 | SamplesStatistics mSamplesStat;
|
---|
[440] | 908 | };
|
---|
| 909 |
|
---|
[441] | 910 |
|
---|
[1545] | 911 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 912 | */
|
---|
| 913 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 914 | {
|
---|
| 915 |
|
---|
| 916 | public:
|
---|
[485] | 917 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 918 | used to construct the bsp tree.
|
---|
| 919 | */
|
---|
[1264] | 920 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 921 |
|
---|
[477] | 922 | ~BspViewCellsManager();
|
---|
[1582] | 923 |
|
---|
[574] | 924 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 925 | const VssRayContainer &rays);
|
---|
[440] | 926 |
|
---|
| 927 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 928 | const VssRayContainer &rays);
|
---|
[440] | 929 |
|
---|
| 930 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 931 | const VssRayContainer &sampleRays);
|
---|
[440] | 932 |
|
---|
| 933 | int GetType() const;
|
---|
| 934 |
|
---|
| 935 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 936 |
|
---|
| 937 | bool ViewCellsConstructed() const;
|
---|
| 938 |
|
---|
[475] | 939 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 940 |
|
---|
[468] | 941 | int CastLineSegment(const Vector3 &origin,
|
---|
| 942 | const Vector3 &termination,
|
---|
| 943 | ViewCellContainer &viewcells);
|
---|
| 944 |
|
---|
[1294] | 945 | /** Returns the probability that the view point lies
|
---|
| 946 | in this view cells.
|
---|
| 947 | */
|
---|
[471] | 948 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 949 |
|
---|
[1294] | 950 | /** Get a viewcell containing the specified point.
|
---|
[879] | 951 | */
|
---|
| 952 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 953 |
|
---|
[1294] | 954 | /** Creates mesh for this view cell.
|
---|
| 955 | */
|
---|
[503] | 956 | void CreateMesh(ViewCell *vc);
|
---|
| 957 |
|
---|
[1416] | 958 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 959 | ViewCell *vc,
|
---|
| 960 | const AxisAlignedBox3 *box,
|
---|
| 961 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 962 | ) const;
|
---|
[580] | 963 |
|
---|
[587] | 964 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 965 | vector<MergeCandidate> &candidates);
|
---|
[547] | 966 |
|
---|
[587] | 967 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 968 |
|
---|
[1416] | 969 | bool ExportViewCells(const string filename,
|
---|
| 970 | const bool exportPvs,
|
---|
| 971 | const ObjectContainer &objects);
|
---|
[590] | 972 |
|
---|
[752] | 973 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 974 | */
|
---|
[650] | 975 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 976 |
|
---|
[1686] | 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);
|
---|
[1545] | 985 |
|
---|
[1977] | 986 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 987 | const Vector3 &termination,
|
---|
| 988 | ViewCell *viewCell);
|
---|
| 989 |
|
---|
[440] | 990 | protected:
|
---|
| 991 |
|
---|
[480] | 992 | void CollectViewCells();
|
---|
[547] | 993 |
|
---|
[440] | 994 | /// the BSP tree.
|
---|
| 995 | BspTree *mBspTree;
|
---|
[475] | 996 | vector<BspRay *> mBspRays;
|
---|
[440] | 997 |
|
---|
| 998 | private:
|
---|
| 999 |
|
---|
[1545] | 1000 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 1001 | */
|
---|
| 1002 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
| 1003 |
|
---|
[440] | 1004 | /** Exports visualization of the BSP splits.
|
---|
| 1005 | */
|
---|
[477] | 1006 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 1007 |
|
---|
[1002] | 1008 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 1009 | */
|
---|
[693] | 1010 | void TestSubdivision();
|
---|
[440] | 1011 | };
|
---|
| 1012 |
|
---|
[1545] | 1013 |
|
---|
[440] | 1014 | /**
|
---|
| 1015 | Manages different higher order operations on the KD type view cells.
|
---|
| 1016 | */
|
---|
| 1017 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 1018 | {
|
---|
| 1019 |
|
---|
| 1020 | public:
|
---|
| 1021 |
|
---|
[1264] | 1022 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 1023 |
|
---|
[574] | 1024 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 1025 | const VssRayContainer &rays);
|
---|
[440] | 1026 |
|
---|
[478] | 1027 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1028 | const Vector3 &termination,
|
---|
| 1029 | ViewCellContainer &viewcells);
|
---|
[440] | 1030 |
|
---|
| 1031 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1032 | const VssRayContainer &rays);
|
---|
[440] | 1033 |
|
---|
| 1034 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 1035 | const VssRayContainer &sampleRays);
|
---|
[440] | 1036 |
|
---|
| 1037 | int GetType() const;
|
---|
| 1038 |
|
---|
| 1039 | bool ViewCellsConstructed() const;
|
---|
| 1040 |
|
---|
[580] | 1041 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 1042 |
|
---|
[452] | 1043 | /** Prints out statistics of this approach.
|
---|
| 1044 | */
|
---|
[503] | 1045 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 1046 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 1047 | { return NULL; }
|
---|
[452] | 1048 |
|
---|
[503] | 1049 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 1050 |
|
---|
[503] | 1051 | void CreateMesh(ViewCell *vc);
|
---|
| 1052 |
|
---|
[1686] | 1053 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1054 | ViewCell *vc,
|
---|
| 1055 | const AxisAlignedBox3 *box,
|
---|
| 1056 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[547] | 1057 |
|
---|
[1416] | 1058 |
|
---|
[591] | 1059 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1060 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1061 |
|
---|
[1686] | 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);
|
---|
[752] | 1070 |
|
---|
[1977] | 1071 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1072 | const Vector3 &termination,
|
---|
| 1073 | ViewCell *viewCell);
|
---|
| 1074 |
|
---|
[440] | 1075 | protected:
|
---|
| 1076 |
|
---|
[580] | 1077 | /** Collects view cells from a hierarchy.
|
---|
| 1078 | */
|
---|
[480] | 1079 | void CollectViewCells();
|
---|
[580] | 1080 |
|
---|
[480] | 1081 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 1082 |
|
---|
[1570] | 1083 | ////////////////////////////////////////
|
---|
[440] | 1084 |
|
---|
[480] | 1085 | /// the BSP tree.
|
---|
| 1086 | KdTree *mKdTree;
|
---|
[440] | 1087 |
|
---|
[480] | 1088 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 1089 | int mKdPvsDepth;
|
---|
[938] | 1090 |
|
---|
| 1091 |
|
---|
[440] | 1092 | };
|
---|
| 1093 |
|
---|
[1570] | 1094 |
|
---|
| 1095 | /** Manages different higher order operations on the view cells.
|
---|
[442] | 1096 | */
|
---|
| 1097 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 1098 | {
|
---|
| 1099 |
|
---|
| 1100 | public:
|
---|
| 1101 |
|
---|
[1264] | 1102 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 1103 | ~VspBspViewCellsManager();
|
---|
[442] | 1104 |
|
---|
[574] | 1105 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 1106 | const VssRayContainer &rays);
|
---|
[442] | 1107 |
|
---|
| 1108 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1109 | const VssRayContainer &rays);
|
---|
[442] | 1110 |
|
---|
| 1111 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 1112 | const VssRayContainer &sampleRays);
|
---|
[442] | 1113 |
|
---|
| 1114 | int GetType() const;
|
---|
| 1115 |
|
---|
| 1116 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1117 |
|
---|
| 1118 | bool ViewCellsConstructed() const;
|
---|
[468] | 1119 |
|
---|
| 1120 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1121 | const Vector3 &termination,
|
---|
| 1122 | ViewCellContainer &viewcells);
|
---|
[452] | 1123 |
|
---|
[471] | 1124 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 1125 |
|
---|
[879] | 1126 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 1127 |
|
---|
[487] | 1128 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1129 |
|
---|
[490] | 1130 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 1131 |
|
---|
| 1132 | void CreateMesh(ViewCell *vc);
|
---|
| 1133 |
|
---|
[1686] | 1134 | bool ExportViewCells(const string filename,
|
---|
| 1135 | const bool exportPvs,
|
---|
| 1136 | const ObjectContainer &objects);
|
---|
[508] | 1137 |
|
---|
[532] | 1138 | int CastBeam(Beam &beam);
|
---|
[1416] | 1139 |
|
---|
[1686] | 1140 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1141 | ViewCell *vc,
|
---|
| 1142 | const AxisAlignedBox3 *box,
|
---|
| 1143 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[532] | 1144 |
|
---|
[547] | 1145 |
|
---|
[555] | 1146 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 1147 |
|
---|
[1686] | 1148 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1149 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1150 |
|
---|
[1686] | 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);
|
---|
[1570] | 1159 |
|
---|
[1920] | 1160 |
|
---|
[1977] | 1161 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1162 | const Vector3 &termination,
|
---|
| 1163 | ViewCell *viewCell);
|
---|
| 1164 |
|
---|
[442] | 1165 | protected:
|
---|
[475] | 1166 |
|
---|
[1686] | 1167 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1168 | ViewCellContainer &viewCells) const;
|
---|
[651] | 1169 |
|
---|
[1021] | 1170 | /** Merges view cells according to some criteria
|
---|
[442] | 1171 | */
|
---|
[508] | 1172 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 1173 | const ObjectContainer &objects);
|
---|
[503] | 1174 |
|
---|
[564] | 1175 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 1176 |
|
---|
[480] | 1177 | void CollectViewCells();
|
---|
| 1178 |
|
---|
[482] | 1179 | /** Returns maximal depth difference of view cell
|
---|
| 1180 | leaves in tree.
|
---|
| 1181 | */
|
---|
| 1182 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 1183 |
|
---|
[752] | 1184 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1185 | */
|
---|
[577] | 1186 | void PrepareLoadedViewCells();
|
---|
| 1187 |
|
---|
[752] | 1188 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1189 | */
|
---|
[650] | 1190 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 1191 |
|
---|
[979] | 1192 | /// HACK for testing visibility filter functionality
|
---|
[697] | 1193 | void TestFilter(const ObjectContainer &objects);
|
---|
| 1194 |
|
---|
[979] | 1195 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 1196 | from point queries.
|
---|
| 1197 | */
|
---|
| 1198 | void VisualizeWithFromPointQueries();
|
---|
[697] | 1199 |
|
---|
[991] | 1200 | /** Evaluate from point queries for the current scene.
|
---|
| 1201 | */
|
---|
| 1202 | void EvalFromPointQueries();
|
---|
[979] | 1203 |
|
---|
[1021] | 1204 | /** Exports visualization of the BSP splits.
|
---|
| 1205 | */
|
---|
| 1206 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 1207 | const VssRayContainer &rays);
|
---|
[991] | 1208 |
|
---|
[1686] | 1209 |
|
---|
| 1210 | /////////////////////////
|
---|
| 1211 |
|
---|
[442] | 1212 | /// the view space partition BSP tree.
|
---|
| 1213 | VspBspTree *mVspBspTree;
|
---|
| 1214 |
|
---|
[591] | 1215 |
|
---|
[442] | 1216 | private:
|
---|
| 1217 |
|
---|
[1021] | 1218 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 1219 | */
|
---|
[1021] | 1220 | void TestSubdivision();
|
---|
| 1221 | };
|
---|
[442] | 1222 |
|
---|
[1662] | 1223 | #define TEST_EVALUATION 0
|
---|
[1021] | 1224 |
|
---|
| 1225 | /**
|
---|
| 1226 | Manages different higher order operations on the view cells.
|
---|
| 1227 | */
|
---|
| 1228 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 1229 | {
|
---|
[1740] | 1230 | friend class ViewCellsParseHandlers;
|
---|
[1977] | 1231 |
|
---|
[1021] | 1232 | public:
|
---|
| 1233 |
|
---|
[2113] | 1234 | VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
| 1235 | const string &hierarchyType);
|
---|
[1278] | 1236 |
|
---|
[1021] | 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 |
|
---|
[1686] | 1245 | void Visualize(const ObjectContainer &objects,
|
---|
[1021] | 1246 | const VssRayContainer &sampleRays);
|
---|
| 1247 |
|
---|
| 1248 | int GetType() const;
|
---|
| 1249 |
|
---|
| 1250 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1251 |
|
---|
[1977] | 1252 | virtual Intersectable *GetIntersectable(
|
---|
| 1253 | const VssRay &ray, const bool isTermination) const;
|
---|
[1743] | 1254 |
|
---|
[1021] | 1255 | bool ViewCellsConstructed() const;
|
---|
| 1256 |
|
---|
| 1257 |
|
---|
| 1258 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1259 | const Vector3 &termination,
|
---|
| 1260 | ViewCellContainer &viewcells);
|
---|
| 1261 |
|
---|
[1977] | 1262 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1263 | const Vector3 &termination,
|
---|
| 1264 | ViewCell *viewCell);
|
---|
| 1265 |
|
---|
[1021] | 1266 | float GetProbability(ViewCell *viewCell);
|
---|
| 1267 |
|
---|
[2113] | 1268 | ViewCell *GetViewCell(const Vector3 &point,
|
---|
| 1269 | const bool active = false) const;
|
---|
[1021] | 1270 |
|
---|
| 1271 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1272 |
|
---|
| 1273 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1274 |
|
---|
| 1275 | void CreateMesh(ViewCell *vc);
|
---|
| 1276 |
|
---|
[1027] | 1277 | bool ExportViewCells(const string filename,
|
---|
| 1278 | const bool exportPvs,
|
---|
| 1279 | const ObjectContainer &objects);
|
---|
[1021] | 1280 |
|
---|
| 1281 | int CastBeam(Beam &beam);
|
---|
| 1282 |
|
---|
| 1283 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1284 |
|
---|
[1666] | 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);
|
---|
[1920] | 1293 |
|
---|
| 1294 | float UpdateObjectCosts();
|
---|
[1570] | 1295 |
|
---|
[2124] | 1296 | virtual void FinalizeViewCells(const bool createMesh);
|
---|
| 1297 |
|
---|
[1021] | 1298 | protected:
|
---|
[1180] | 1299 |
|
---|
[1740] | 1300 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 1301 |
|
---|
[1709] | 1302 | #if 1//TEST_EVALUATION
|
---|
| 1303 | virtual void EvalViewCellPartition();
|
---|
| 1304 | #endif
|
---|
[1416] | 1305 |
|
---|
[1027] | 1306 | /** Exports view cell geometry.
|
---|
| 1307 | */
|
---|
[1666] | 1308 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1309 | ViewCell *vc,
|
---|
| 1310 | const AxisAlignedBox3 *box,
|
---|
| 1311 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[1027] | 1312 |
|
---|
[1666] | 1313 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1314 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1315 |
|
---|
| 1316 | void CollectViewCells();
|
---|
| 1317 |
|
---|
[1845] | 1318 | virtual void CompressViewCells();
|
---|
| 1319 |
|
---|
[1021] | 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 |
|
---|
[1074] | 1328 | /** Exports visualization of the PVS.
|
---|
[442] | 1329 | */
|
---|
[1666] | 1330 | void ExportPvs(const ObjectContainer &objects, const VssRayContainer &rays);
|
---|
[442] | 1331 |
|
---|
[1740] | 1332 | /** Returns a hierarchy manager of the given name.
|
---|
| 1333 | */
|
---|
| 1334 | static HierarchyManager *CreateHierarchyManager(const string &name);
|
---|
| 1335 |
|
---|
[1679] | 1336 | //void ExportStats(const string &mergeStats);
|
---|
[1021] | 1337 |
|
---|
[1887] | 1338 | /** collect objects intersecting a given spatial box
|
---|
[1845] | 1339 | */
|
---|
| 1340 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
|
---|
[1737] | 1341 |
|
---|
[1887] | 1342 |
|
---|
| 1343 | /////////////////////////////////////////
|
---|
| 1344 |
|
---|
| 1345 | bool mCompressObjects;
|
---|
| 1346 |
|
---|
[1027] | 1347 | HierarchyManager *mHierarchyManager;
|
---|
[442] | 1348 | };
|
---|
| 1349 |
|
---|
[575] | 1350 |
|
---|
[860] | 1351 | }
|
---|
| 1352 |
|
---|
[440] | 1353 | #endif
|
---|