[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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| 5 | #include "VssRay.h"
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| 6 | #include "Containers.h"
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[475] | 7 | #include "ViewCell.h"
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[610] | 8 | #include "ViewCellBsp.h"
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[440] | 9 |
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[860] | 10 | namespace GtpVisibilityPreprocessor {
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| 11 |
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[440] | 12 | class ViewCell;
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| 13 | class Intersectable;
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| 14 | class RenderSimulator;
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[480] | 15 | class Renderer;
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[440] | 16 | class Mesh;
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| 17 | struct Triangle3;
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| 18 | class SimulationStatistics;
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| 19 | class BspTree;
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| 20 | class KdTree;
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[1006] | 21 | class VspOspTree;
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[440] | 22 | class VspBspTree;
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| 23 | class KdNode;
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| 24 | class KdLeaf;
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| 25 | class AxisAlignedBox3;
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[448] | 26 | class BspLeaf;
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[475] | 27 | class ViewCellsStatistics;
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[482] | 28 | class Exporter;
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[532] | 29 | class Beam;
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[570] | 30 | class Preprocessor;
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[580] | 31 | class ViewCellsTree;
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| 32 | class MergeCandidate;
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[931] | 33 | class BoundingBoxConverter;
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[1021] | 34 | class VspTree;
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| 35 | class OspTree;
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| 36 | class VspNode;
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[1027] | 37 | class HierarchyManager;
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[1259] | 38 | class BvHierarchy;
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[1264] | 39 | class ViewCellsTree;
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[1786] | 40 | class ViewCell;
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[1903] | 41 | class MixtureDistribution;
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[1047] | 42 | struct AxisAlignedPlane;
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[475] | 43 | struct BspRay;
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| 44 |
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[1903] | 45 |
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[2015] | 46 |
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| 47 |
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[1761] | 48 | struct PvsFilterStatistics {
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[1773] | 49 | PvsFilterStatistics():
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| 50 | mAvgFilterRadius(0.0f), mLocalFilterCount(0), mGlobalFilterCount(0) {}
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[1761] | 51 | float mAvgFilterRadius;
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| 52 | int mLocalFilterCount;
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| 53 | int mGlobalFilterCount;
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| 54 |
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| 55 | };
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| 56 |
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[1145] | 57 | /** Probably Visible Set
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| 58 | */
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[697] | 59 | class PrVs
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| 60 | {
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| 61 | public:
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[704] | 62 | /// root of view cells tree
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| 63 | ViewCell *mViewCell;
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| 64 |
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[880] | 65 | // input parameter is the render budget for the PrVs
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[677] | 66 | float mRenderBudget;
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| 67 |
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[1557] | 68 | // some characteristic values could be stored as well
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[677] | 69 | };
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| 70 |
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[1786] | 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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[2017] | 79 | typedef pair<ViewCell *, SimpleRayContainer> ViewCellPoints;
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[1786] | 80 |
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[850] | 81 | /** Manages different higher order operations on the view cells.
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[440] | 82 | */
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| 83 | class ViewCellsManager
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| 84 | {
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| 85 | public:
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[1983] | 86 |
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[1942] | 87 | struct PerViewCellStat {
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| 88 | float pvsSize;
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| 89 | float relPvsIncrease;
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| 90 | };
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[1983] | 91 |
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| 92 | struct SamplesStatistics {
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| 93 | int mRays;
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| 94 | int mViewCells;
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| 95 | int mContributingRays;
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| 96 | int mPvsContributions;
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| 97 | void Reset() {
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| 98 | mRays = 0;
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| 99 | mViewCells = 0;
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| 100 | mContributingRays = 0;
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| 101 | mPvsContributions = 0;
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| 102 | };
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| 103 | };
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| 104 |
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[1942] | 105 | struct PvsStatistics
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[728] | 106 | {
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[1737] | 107 | float minPvs;
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| 108 | float maxPvs;
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| 109 | float avgPvs;
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[1974] | 110 | float avgPvsEntries;
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| 111 |
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[1737] | 112 | float avgFilteredPvs;
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[1974] | 113 | float avgFilteredPvsEntries;
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| 114 |
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[1737] | 115 | float avgFilterContribution;
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[1761] | 116 | float avgFilterRadius;
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| 117 | float avgFilterRatio;
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[1942] | 118 | float avgRelPvsIncrease;
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| 119 | float devRelPvsIncrease;
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[1737] | 120 | int viewcells;
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[1545] | 121 | };
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[1942] | 122 |
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[728] | 123 | /// view cell container types
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[1021] | 124 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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[466] | 125 |
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[931] | 126 | /// render cost evaluation type
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[728] | 127 | enum {PER_OBJECT, PER_TRIANGLE};
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| 128 |
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[1545] | 129 | friend class X3dViewCellsParseHandlers;
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[1709] | 130 |
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[1004] | 131 | /** Default constructor.
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[440] | 132 | */
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[1264] | 133 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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[440] | 134 |
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[462] | 135 | virtual ~ViewCellsManager();
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[440] | 136 |
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[527] | 137 | /** Constructs view cells container taking a preprocessor
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[570] | 138 | @returns the output rays (if not null)
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| 139 | */
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| 140 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 141 |
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[440] | 142 | /** Constructs view cell container with a given number of samples.
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| 143 | */
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[1709] | 144 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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| 145 | const VssRayContainer &rays) = 0;
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[440] | 146 |
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[441] | 147 | /** Computes sample contributions of the rays to the view cells PVS.
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| 148 |
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| 149 | @param rays bundle of rays used to find intersections with view cells and
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| 150 | adding the contribution
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[563] | 151 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 152 | intersect
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| 153 | @param storeViewCells true if view cells should be stored in the ray
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| 154 | */
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[697] | 155 | float ComputeSampleContributions(const VssRayContainer &rays,
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[1155] | 156 | const bool addContributions,
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[1990] | 157 | const bool storeViewCells,
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| 158 | const bool useHitObject = false);
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[440] | 159 |
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[475] | 160 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 161 | @param ray finds intersections with view cells and holds the contribution
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[1570] | 162 | @param addSample if sample should be added to the pvs
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| 163 |
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[475] | 164 | @returns number of sample contributions
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| 165 | */
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[1159] | 166 | virtual float ComputeSampleContribution(VssRay &ray,
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[1981] | 167 | const bool addContributions,
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[1990] | 168 | const bool storeViewCells,
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| 169 | const bool useHitObject = false);
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[563] | 170 |
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[1977] | 171 | /** Compute sample contribution only for current view cell.
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| 172 | */
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| 173 | virtual float ComputeSampleContribution(VssRay &ray,
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[1981] | 174 | const bool addContributions,
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[1990] | 175 | ViewCell *currentViewCell,
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| 176 | const bool useHitObject = false);
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[563] | 177 |
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[452] | 178 | /** Prints out statistics of the view cells.
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| 179 | */
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[475] | 180 | virtual void PrintStatistics(ostream &s) const;
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[452] | 181 |
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[440] | 182 | /** Post processes view cells givemŽa number of rays.
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| 183 | */
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[475] | 184 | virtual int PostProcess(const ObjectContainer &objects,
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| 185 | const VssRayContainer &rays) = 0;
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[440] | 186 |
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| 187 | /** Show visualization of the view cells.
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| 188 | */
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| 189 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 190 | const VssRayContainer &sampleRays) = 0;
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[440] | 191 |
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[1982] | 192 | /** collect objects intersecting a given spatial box.
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| 193 | */
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| 194 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
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[1737] | 195 |
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[440] | 196 | /** type of the view cell container.
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| 197 | */
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| 198 | virtual int GetType() const = 0;
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| 199 |
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[463] | 200 | /** Load the input viewcells. The input viewcells should be given as a collection
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[1545] | 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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[463] | 204 |
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| 205 | @param filename file to load
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| 206 | @return true on success
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[1982] | 207 | */
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| 208 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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[577] | 209 |
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[440] | 210 | /** Merges two view cells.
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| 211 | @note the piercing rays of the front and back will be ordered
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| 212 | @returns new view cell based on the merging.
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| 213 | */
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[582] | 214 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 215 |
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| 216 | /** Merges a container of view cells.
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| 217 | @returns new view cell based on the merging.
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| 218 | */
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| 219 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 220 |
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[1545] | 221 | /** Generates view cell of the type specified by this manager
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[440] | 222 | */
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[580] | 223 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 224 |
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[1545] | 225 | /** Constructs view cell from base triangle.
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| 226 | The view cell is extruded along the normal vector.
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| 227 | @param the base triangle
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| 228 | @param the height of the newly created view cell
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[440] | 229 | */
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[1545] | 230 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[440] | 231 |
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[1982] | 232 | virtual Intersectable *GetIntersectable(const VssRay &ray, const bool isTermination) const;
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[1743] | 233 |
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[440] | 234 | /** Sets maximal number of samples used for the
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| 235 | construction of the view cells.
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| 236 | */
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| 237 | void SetVisualizationSamples(const int visSamples);
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| 238 |
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[574] | 239 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 240 | */
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| 241 | void SetConstructionSamples(const int constructionSamples);
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| 242 |
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[574] | 243 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 244 | */
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| 245 | void SetInitialSamples(const int initialSamples);
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| 246 |
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[440] | 247 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 248 | */
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| 249 | void SetPostProcessSamples(const int postProcessingSamples);
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| 250 |
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| 251 | /** See set.
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| 252 | */
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| 253 | int GetVisualizationSamples() const;
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| 254 |
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| 255 | /** See set.
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| 256 | */
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| 257 | int GetConstructionSamples() const;
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| 258 |
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| 259 | /** See set.
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| 260 | */
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| 261 | int GetPostProcessSamples() const;
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| 262 |
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[1002] | 263 | /** Returns true if view cells are already constructed.
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[440] | 264 | */
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| 265 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 266 |
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[477] | 267 | /** cast line segment to get a list of unique viewcells which are intersected
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| 268 | by this line segment
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| 269 | */
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[1977] | 270 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 271 | const Vector3 &termination,
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| 272 | ViewCellContainer &viewcells
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| 273 | ) = 0;
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| 274 |
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[1977] | 275 | /** Tests if this line segment intersects a particular view cell.
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| 276 | */
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| 277 | virtual bool LineSegmentIntersects(const Vector3 &origin,
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| 278 | const Vector3 &termination,
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| 279 | ViewCell *viewCell) = 0;
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| 280 |
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[1294] | 281 | /** Returns a stats about the global pvs.
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| 282 | */
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[477] | 283 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 284 |
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[904] | 285 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[677] | 286 |
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[697] | 287 | /** Get a viewcell containing the specified point
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[879] | 288 | @param active if the active or elementary view cell should be returned.
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[697] | 289 | */
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[879] | 290 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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[492] | 291 |
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[1982] | 292 | ViewCell *GetViewCell(const int idx) const {return mViewCells[idx];}
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| 293 |
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[503] | 294 | virtual void PrintPvsStatistics(ostream &s);
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[467] | 295 |
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[719] | 296 | /** Updates pvs of the view cell hierarchy if necessary.
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| 297 | */
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| 298 | void UpdatePvs();
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| 299 |
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[477] | 300 | /** Returns probability that view point lies in one view cell.
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| 301 | */
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| 302 | virtual float GetProbability(ViewCell *viewCell) = 0;
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[468] | 303 |
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[477] | 304 | /** Returns render cost of a single view cell given the render cost of an object.
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| 305 | */
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[728] | 306 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 307 |
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[720] | 308 | /** Returns reference to container of loaded / generated view cells.
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[477] | 309 | */
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| 310 | ViewCellContainer &GetViewCells();
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[468] | 311 |
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[485] | 312 | /** Helper function used to split ray sets uniformly
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| 313 | into one that is currently used and the other that
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| 314 | is saved for later processing.
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| 315 | @param sourceRays the input ray set
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| 316 | @param maxSize the maximal number of rays that will be used
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| 317 | @param usedRays returns the used ray set
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| 318 | @param savedRays if not null, returns the saved ray set
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[477] | 319 | */
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| 320 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 321 | const int maxSize,
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| 322 | VssRayContainer &usedRays,
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| 323 | VssRayContainer *savedRays = NULL) const;
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| 324 |
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[480] | 325 | /** Returns accumulated area of all view cells.
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| 326 | */
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| 327 | float GetAccVcArea();
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[470] | 328 |
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[480] | 329 | /** Returns area of one view cell.
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| 330 | */
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| 331 | virtual float GetArea(ViewCell *viewCell) const;
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[470] | 332 |
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[551] | 333 | /** Returns volume of view cell.
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[480] | 334 | */
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| 335 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 336 |
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[480] | 337 | /** Sets the current renderer mainly for view cells statistics.
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| 338 | */
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| 339 | void SetRenderer(Renderer *renderer);
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| 340 |
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[487] | 341 | /** Computes a (random) view point in the valid view space.
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| 342 | @returns true if valid view point was found
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| 343 | */
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| 344 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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[1867] | 345 |
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[1982] | 346 | virtual bool GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const;
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[487] | 347 |
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[490] | 348 | /** Returns true if this view point is in the valid view space.
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| 349 | */
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| 350 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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| 351 |
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[487] | 352 | /** Sets a view space boundary.
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| 353 | */
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| 354 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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| 355 |
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[519] | 356 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 357 |
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[503] | 358 | /** Creates mesh for this view cell.
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| 359 | */
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| 360 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[487] | 361 |
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[508] | 362 | /** Writes view cells to disc.
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| 363 | */
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[1027] | 364 | virtual bool ExportViewCells(const string filename,
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| 365 | const bool exportPvs,
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| 366 | const ObjectContainer &objects);
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[508] | 367 |
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[532] | 368 | /** Casts beam to collect view cells.
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| 369 | */
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| 370 | virtual int CastBeam(Beam &beam);
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| 371 |
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[547] | 372 | /** Checks if view cell is considered as valid.
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| 373 | */
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[561] | 374 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 375 | int minPvsSize,
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| 376 | int maxPvsSize) const;
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[547] | 377 |
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[2015] | 378 |
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| 379 | // resort pvss after a pass of the algorithm
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| 380 | void
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| 381 | SortViewCellPvs();
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| 382 |
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[2021] | 383 | // map the ray intersection objects from triangles to high level objects...
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| 384 | void
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| 385 | DeterminePvsObjects(
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| 386 | VssRayContainer &rays,
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| 387 | const bool useHitObjects = false);
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| 388 |
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[562] | 389 | /** Sets validity of view cell
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| 390 | */
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| 391 | virtual void SetValidity(ViewCell *vc,
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| 392 | int minPvsSize,
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| 393 | int maxPvsSize) const;
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| 394 |
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[710] | 395 | /** sets validy of all viewcells
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| 396 | */
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[810] | 397 | virtual void SetValidity(int minPvsSize,
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[569] | 398 | int maxPvsSize) const;
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| 399 |
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[609] | 400 |
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| 401 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 402 | according to the pvs and then pickups those in the ranges
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| 403 | */
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| 404 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 405 |
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[1545] | 406 | /** Returns number of valid view cells.
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| 407 | */
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[609] | 408 | int CountValidViewcells() const;
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| 409 |
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[547] | 410 | /** Returns maximal allowed pvs size.
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| 411 | */
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| 412 | int GetMaxPvsSize() const;
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| 413 |
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[562] | 414 | /** Returns maximal allowed pvs size.
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| 415 | */
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| 416 | int GetMinPvsSize() const;
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[561] | 417 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 418 | where pvs is still considered valid.
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| 419 | */
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| 420 | float GetMaxPvsRatio() const;
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[547] | 421 | /** Exports view cell geometry.
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| 422 | */
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[1416] | 423 | virtual void ExportViewCellGeometry(
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| 424 | Exporter *exporter,
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| 425 | ViewCell *vc,
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| 426 | const AxisAlignedBox3 *box,
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| 427 | const AxisAlignedPlane *clipPlane = NULL
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| 428 | ) const = 0;
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[547] | 429 |
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[860] | 430 | /** Brings the view cells into their final state, computes meshes and volume.
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| 431 | */
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[551] | 432 | virtual void FinalizeViewCells(const bool createMesh);
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| 433 |
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[579] | 434 | /** Evaluates statistics values on view cells.
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| 435 | */
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[580] | 436 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 437 | float &expectedRenderCost,
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| 438 | float &deviation,
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| 439 | float &variance,
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[1709] | 440 | float &totalPvs,
|
---|
[580] | 441 | float &avgRenderCost);
|
---|
[579] | 442 |
|
---|
[580] | 443 |
|
---|
| 444 | /** Returns hierarchy of the view cells.
|
---|
| 445 | */
|
---|
| 446 | ViewCellsTree *GetViewCellsTree();
|
---|
| 447 |
|
---|
[1545] | 448 | /** Collect candidates for the view cell merge.
|
---|
| 449 | */
|
---|
[581] | 450 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
[1022] | 451 | vector<MergeCandidate> &candidates);
|
---|
[580] | 452 |
|
---|
[1294] | 453 | /** Collects n view cells and stores it as the active view cells.
|
---|
| 454 | */
|
---|
[610] | 455 | void CollectViewCells(const int n);
|
---|
| 456 |
|
---|
[1686] | 457 | /** Sets current view cells set to active,
|
---|
| 458 | i.e., the sampling is done in this view cell set.
|
---|
[660] | 459 | */
|
---|
| 460 | void SetViewCellsActive();
|
---|
[599] | 461 |
|
---|
[1145] | 462 | /** Evaluates render cost statistics of current view cell hierarchy.
|
---|
[660] | 463 | */
|
---|
[1178] | 464 | virtual void EvalViewCellPartition();
|
---|
[660] | 465 |
|
---|
[728] | 466 | /** Sets maximal size of a view cell filter.
|
---|
| 467 | */
|
---|
| 468 | void SetMaxFilterSize(const int size);
|
---|
[697] | 469 |
|
---|
[840] | 470 | /** Returns maximal filter size.
|
---|
| 471 | */
|
---|
| 472 | int GetMaxFilterSize() const;
|
---|
[746] | 473 |
|
---|
[1686] | 474 | /** Deletes interior nodes from the tree which have negative
|
---|
| 475 | merge cost set (local merge).
|
---|
[840] | 476 | */
|
---|
| 477 | void DeleteLocalMergeTree(ViewCell *vc) const;
|
---|
[713] | 478 |
|
---|
[728] | 479 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 480 | */
|
---|
| 481 | void EvalViewCellHistogram(const string filename, const int nViewCells);
|
---|
| 482 |
|
---|
[735] | 483 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 484 | */
|
---|
| 485 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
|
---|
| 486 |
|
---|
[1919] | 487 | void EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 488 | ViewCellContainer &viewCells);
|
---|
| 489 |
|
---|
[728] | 490 | /** Evaluates the render cost of a view cell.
|
---|
| 491 | */
|
---|
[1703] | 492 | static float EvalRenderCost(Intersectable *obj);
|
---|
[1002] | 493 |
|
---|
| 494 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
|
---|
| 495 | of the hierarchy.
|
---|
| 496 | */
|
---|
[1709] | 497 | void UpdateScalarPvsSize(ViewCell *vc, const float pvsCost, const int entriesInPvs) const;
|
---|
[728] | 498 |
|
---|
[870] | 499 | /** Returns bounding box of a view cell.
|
---|
| 500 | */
|
---|
| 501 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
|
---|
[859] | 502 |
|
---|
[840] | 503 | /** Exports bounding boxes of objects to file.
|
---|
| 504 | */
|
---|
| 505 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
|
---|
[931] | 506 |
|
---|
[850] | 507 | /** Load the bounding boxes into the container.
|
---|
| 508 | */
|
---|
| 509 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
|
---|
[840] | 510 |
|
---|
[1002] | 511 | /** Returns true if pvs should be exported together with the view cells.
|
---|
| 512 | */
|
---|
| 513 | bool GetExportPvs() const;
|
---|
[870] | 514 |
|
---|
[1786] | 515 | /** Efficiently merges the view cells in the container.
|
---|
| 516 | */
|
---|
[1787] | 517 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 518 | const ViewCellContainer &viewCells) const;
|
---|
[1786] | 519 |
|
---|
[1845] | 520 | virtual void CompressViewCells();
|
---|
| 521 |
|
---|
[2017] | 522 | ViewCell *GetViewCellById(const int id);
|
---|
| 523 |
|
---|
| 524 | /** Returns number of view cells.
|
---|
| 525 | */
|
---|
[1982] | 526 | int GetNumViewCells() const;
|
---|
| 527 |
|
---|
[2017] | 528 | bool GenerateRandomViewCells(ViewCellContainer &viewCells,
|
---|
| 529 | const int numViewCells);
|
---|
| 530 |
|
---|
| 531 | bool GenerateRandomViewCells(vector<ViewCellPoints *> &viewCells,
|
---|
| 532 | const int nViewCells,
|
---|
| 533 | const int nViewPoints);
|
---|
| 534 |
|
---|
| 535 |
|
---|
| 536 | bool GenerateViewPoints(ViewCell *viewCell,
|
---|
| 537 | const int numViewPoints,
|
---|
| 538 | SimpleRayContainer &viewPoints);
|
---|
| 539 |
|
---|
| 540 | bool ImportRandomViewCells(const string &filename,
|
---|
| 541 | vector<ViewCellPoints *> &viewCells);
|
---|
| 542 |
|
---|
[2048] | 543 | bool ImportRandomViewCells(const string &filename);
|
---|
[2017] | 544 |
|
---|
| 545 | bool ExportRandomViewCells(const string &filename,
|
---|
| 546 | const vector<ViewCellPoints *> &viewCells);
|
---|
| 547 |
|
---|
[2048] | 548 | bool ExportRandomViewCells(const string &filename);
|
---|
| 549 |
|
---|
[2017] | 550 | bool GenerateViewPoint(ViewCell *viewCell, SimpleRay &ray);
|
---|
| 551 |
|
---|
| 552 | bool IsValidViewSpace(ViewCell *vc);
|
---|
| 553 |
|
---|
[2048] | 554 |
|
---|
[2017] | 555 | //////////////
|
---|
[1582] | 556 | // static members
|
---|
| 557 |
|
---|
| 558 | /** Loads view cells from file. The view cells manager is created with
|
---|
| 559 | respect to the loaded view cells.
|
---|
[870] | 560 |
|
---|
[1582] | 561 | @param filename the filename of the view cells
|
---|
| 562 | @param objects the scene objects
|
---|
| 563 | @param finalizeViewCells if the view cells should be post processed, i.e.
|
---|
[2048] | 564 | a mesh is created representing the geometry
|
---|
[1582] | 565 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
[2048] | 566 | boxes: if there is a certain similarity of overlap between
|
---|
| 567 | bounding boxes, two tested candidate objects are considered
|
---|
| 568 | to be the same objects
|
---|
[1582] | 569 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 570 | */
|
---|
| 571 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 572 | ObjectContainer *objects,
|
---|
[1676] | 573 | bool finalizeViewCells = false,
|
---|
[1582] | 574 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 575 |
|
---|
[904] | 576 |
|
---|
[931] | 577 | ////////////////////////////////////////////////////////7
|
---|
| 578 | // visiblity filter options
|
---|
[1294] | 579 |
|
---|
[931] | 580 | // TODO: write own visibiltiy filter class
|
---|
[2048] | 581 | void ApplyFilter(KdTree *kdTree,
|
---|
| 582 | const float viewSpaceFilterSize,
|
---|
| 583 | const float spatialFilterSize);
|
---|
[904] | 584 |
|
---|
[2048] | 585 | // new adaptive version of the filter
|
---|
| 586 | PvsFilterStatistics ApplyFilter2(ViewCell *viewCell,
|
---|
| 587 | const bool useViewSpaceFilter,
|
---|
| 588 | const float filterSize,
|
---|
| 589 | ObjectPvs &pvs,
|
---|
| 590 | vector<AxisAlignedBox3> *filteredBoxes = NULL);
|
---|
[1715] | 591 |
|
---|
[931] | 592 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 593 | const float spatialFilterSize,
|
---|
| 594 | ObjectPvs &pvs);
|
---|
[480] | 595 |
|
---|
[931] | 596 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 597 | KdTree *kdTree,
|
---|
| 598 | const float viewSpaceFilterSize,
|
---|
| 599 | const float spatialFilterSize,
|
---|
| 600 | ObjectPvs &pvs);
|
---|
| 601 |
|
---|
| 602 | float GetFilterWidth();
|
---|
| 603 |
|
---|
| 604 | float GetAbsFilterWidth();
|
---|
| 605 |
|
---|
[697] | 606 | /** Returns the bounding box of filter width.
|
---|
| 607 | */
|
---|
| 608 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 609 |
|
---|
[1294] | 610 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 611 |
|
---|
[2048] | 612 |
|
---|
[1155] | 613 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
| 614 | */
|
---|
| 615 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
| 616 |
|
---|
| 617 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
| 618 | **/
|
---|
| 619 | bool GetStoreKdPVs() const;
|
---|
| 620 |
|
---|
[1570] | 621 | /** Exports single view cells for visualization.
|
---|
| 622 | @param objects the scene objects
|
---|
| 623 | @param limit the maximal number of output view cells
|
---|
| 624 | @param sortViewCells if the view cells should be sorted by pvs size
|
---|
| 625 | @param exportPvs if the pvs should also be exported
|
---|
| 626 | @param exportRays if sample rays should be exported as well
|
---|
[1580] | 627 | @param maxRays maximum number of rays to export
|
---|
| 628 | @param prefix the prefix for the output file
|
---|
[1570] | 629 | @param visRays additional rays
|
---|
| 630 | */
|
---|
[1686] | 631 | virtual void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 632 | const int maxViewCells,
|
---|
| 633 | const bool sortViewCells,
|
---|
| 634 | const bool exportPvs,
|
---|
| 635 | const bool exportRays,
|
---|
| 636 | const int maxRays,
|
---|
| 637 | const string prefix,
|
---|
| 638 | VssRayContainer *visRays = NULL) = NULL;
|
---|
[1570] | 639 |
|
---|
[1932] | 640 |
|
---|
[2048] | 641 | void ResetPvs();
|
---|
[1580] | 642 |
|
---|
[1932] | 643 | Preprocessor *GetPreprocessor() const {
|
---|
| 644 | return mPreprocessor;
|
---|
| 645 | }
|
---|
[1580] | 646 |
|
---|
[1932] | 647 | void SetPreprocessor(Preprocessor *p) {
|
---|
| 648 | mPreprocessor = p;
|
---|
| 649 | }
|
---|
[1608] | 650 |
|
---|
[2048] | 651 | vector<ViewCellPoints *> *GetViewCellPoints()
|
---|
| 652 | {
|
---|
| 653 | return &mViewCellPoints;
|
---|
| 654 | }
|
---|
| 655 |
|
---|
[1932] | 656 | void UpdatePvsForEvaluation();
|
---|
| 657 |
|
---|
[931] | 658 | protected:
|
---|
[1145] | 659 |
|
---|
[1932] | 660 | void ComputeViewCellContribution(ViewCell *viewCell,
|
---|
| 661 | VssRay &ray,
|
---|
| 662 | Intersectable *obj,
|
---|
| 663 | const Vector3 &pt,
|
---|
| 664 | const bool addRays);
|
---|
| 665 |
|
---|
[1787] | 666 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 667 | const ViewCellContainer &viewCells,
|
---|
| 668 | const int leftIdx,
|
---|
| 669 | const int rightIdx) const;
|
---|
| 670 |
|
---|
[697] | 671 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
[1932] | 672 | @returns number of view cells found
|
---|
[697] | 673 | */
|
---|
[710] | 674 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 675 | ViewCellContainer &viewCells) const;
|
---|
[697] | 676 |
|
---|
[880] | 677 | /** Tests the visibility filter functionality.
|
---|
| 678 | */
|
---|
[697] | 679 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 680 |
|
---|
[931] | 681 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 682 | */
|
---|
| 683 | bool ViewCellsTreeConstructed() const;
|
---|
| 684 |
|
---|
[1294] | 685 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 686 | */
|
---|
[574] | 687 | int CastPassSamples(const int samplesPerPass,
|
---|
[1768] | 688 | const vector<int> &strategies,
|
---|
[574] | 689 | VssRayContainer &vssRays) const;
|
---|
[573] | 690 |
|
---|
[1903] | 691 | int CastPassSamples2(const int samplesPerPass,
|
---|
| 692 | VssRayContainer &passSamples) const;
|
---|
| 693 |
|
---|
[931] | 694 | /** Parse the options from the environment file.
|
---|
| 695 | */
|
---|
[482] | 696 | void ParseEnvironment();
|
---|
| 697 |
|
---|
[508] | 698 | /** Creates unique view cell ids.
|
---|
| 699 | */
|
---|
| 700 | void CreateUniqueViewCellIds();
|
---|
[547] | 701 |
|
---|
[551] | 702 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 703 | */
|
---|
| 704 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 705 |
|
---|
[480] | 706 | /** Recollects view cells and resets statistics.
|
---|
| 707 | */
|
---|
| 708 | void ResetViewCells();
|
---|
[1932] | 709 |
|
---|
[1707] | 710 | /** Sets this view cell to active.
|
---|
| 711 | */
|
---|
| 712 | void SetViewCellActive(ViewCell *vc) const;
|
---|
| 713 |
|
---|
[480] | 714 | /** Collects the view cells in the view cell container.
|
---|
| 715 | */
|
---|
| 716 | virtual void CollectViewCells() = 0;
|
---|
[1932] | 717 |
|
---|
[479] | 718 | /** Evaluates view cells statistics and stores it in
|
---|
[1932] | 719 | mViewCellsStatistics.
|
---|
[479] | 720 | */
|
---|
| 721 | void EvaluateViewCellsStats();
|
---|
[482] | 722 |
|
---|
[1932] | 723 |
|
---|
[1416] | 724 | ///////////////////////
|
---|
[482] | 725 | //-- helper functions for view cell visualization
|
---|
| 726 |
|
---|
| 727 | /** Exports the view cell partition.
|
---|
| 728 | */
|
---|
[1686] | 729 | void ExportViewCellsForViz(Exporter *exporter,
|
---|
| 730 | const AxisAlignedBox3 *box,
|
---|
[1760] | 731 | const bool colorCode,
|
---|
[1932] | 732 | const AxisAlignedPlane *clipPlane) const;
|
---|
[482] | 733 |
|
---|
| 734 | /** Sets exporter color.
|
---|
| 735 | */
|
---|
[1773] | 736 | virtual void ExportColor(Exporter *exporter,
|
---|
| 737 | ViewCell *vc,
|
---|
| 738 | const bool colorCode) const;
|
---|
[1932] | 739 |
|
---|
[1416] | 740 | /** Creates meshes from the view cells.
|
---|
| 741 | */
|
---|
| 742 | void CreateViewCellMeshes();
|
---|
[1545] | 743 |
|
---|
[1932] | 744 | /** Creates clip plane for visualization.
|
---|
[1416] | 745 | */
|
---|
| 746 | void CreateClipPlane();
|
---|
[482] | 747 |
|
---|
[1416] | 748 | AxisAlignedPlane *GetClipPlane();
|
---|
[1932] | 749 |
|
---|
[1551] | 750 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 751 |
|
---|
[2048] | 752 |
|
---|
[1416] | 753 | ///////////////////////
|
---|
| 754 |
|
---|
[1002] | 755 | /** Returns volume of the view space.
|
---|
| 756 | */
|
---|
[557] | 757 | virtual float GetViewSpaceVolume();
|
---|
[2048] | 758 |
|
---|
[1416] | 759 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 760 | */
|
---|
[577] | 761 | virtual void PrepareLoadedViewCells() {};
|
---|
[2048] | 762 |
|
---|
[704] | 763 | /** Constructs local view cell merge hierarchy.
|
---|
| 764 | */
|
---|
| 765 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
[1932] | 766 | const ViewCellContainer &viewCells);
|
---|
[704] | 767 |
|
---|
[713] | 768 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
[2048] | 769 | current viewcell
|
---|
[713] | 770 | */
|
---|
| 771 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 772 | const ViewCellContainer &viewCells);
|
---|
| 773 |
|
---|
[860] | 774 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 775 | */
|
---|
[1168] | 776 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[752] | 777 |
|
---|
[1679] | 778 | virtual void ExportStats(const string &mergeStats);
|
---|
[1582] | 779 |
|
---|
[2048] | 780 |
|
---|
[979] | 781 | ////////////////////////////////////////////////
|
---|
[752] | 782 |
|
---|
[2048] | 783 |
|
---|
[1145] | 784 | Preprocessor *mPreprocessor;
|
---|
[1902] | 785 |
|
---|
[1145] | 786 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 787 | bool mExportBboxesForPvs;
|
---|
[1902] | 788 |
|
---|
[1416] | 789 | /// the clip plane for visualization
|
---|
| 790 | AxisAlignedPlane mClipPlaneForViz;
|
---|
[1902] | 791 |
|
---|
[1416] | 792 | /// if the visualization is using the clip plane
|
---|
[660] | 793 | bool mUseClipPlaneForViz;
|
---|
[1902] | 794 |
|
---|
[480] | 795 | /// Renders the view cells.
|
---|
| 796 | Renderer *mRenderer;
|
---|
[1902] | 797 |
|
---|
[440] | 798 | /// Loaded view cells
|
---|
[469] | 799 | ViewCellContainer mViewCells;
|
---|
[1902] | 800 |
|
---|
[1416] | 801 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 802 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 803 |
|
---|
[1773] | 804 | std::vector<int> mStrategies;
|
---|
| 805 |
|
---|
[1416] | 806 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
| 807 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
| 808 | pvs size is stored in interiors and not the pvs itself.
|
---|
| 809 | */
|
---|
[719] | 810 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 811 |
|
---|
[1416] | 812 | /// maximum number of samples for the view cell construction
|
---|
[440] | 813 | int mConstructionSamples;
|
---|
[574] | 814 | int mSamplesPerPass;
|
---|
| 815 | int mInitialSamples;
|
---|
[440] | 816 | int mPostProcessSamples;
|
---|
| 817 | int mVisualizationSamples;
|
---|
[441] | 818 |
|
---|
[470] | 819 | float mTotalAreaValid;
|
---|
| 820 | float mTotalArea;
|
---|
[475] | 821 |
|
---|
[547] | 822 | int mMaxPvsSize;
|
---|
[562] | 823 | int mMinPvsSize;
|
---|
[547] | 824 | float mMaxPvsRatio;
|
---|
| 825 |
|
---|
[660] | 826 | int mSamplingType;
|
---|
[722] | 827 | int mEvaluationSamplingType;
|
---|
[600] | 828 | int mNumActiveViewCells;
|
---|
[586] | 829 | bool mCompressViewCells;
|
---|
| 830 |
|
---|
[2048] | 831 | vector<ViewCellPoints *> mViewCellPoints;
|
---|
| 832 |
|
---|
[1002] | 833 | /// holds the current view cell statistics
|
---|
[660] | 834 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[2048] | 835 |
|
---|
[487] | 836 | /// the scene bounding box
|
---|
[542] | 837 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 838 |
|
---|
[508] | 839 | /// if view cells should be exported
|
---|
| 840 | bool mExportViewCells;
|
---|
[547] | 841 |
|
---|
[1002] | 842 | // if only valid view cells should be considered for processing
|
---|
[564] | 843 | bool mOnlyValidViewCells;
|
---|
[547] | 844 |
|
---|
[580] | 845 | /// if rays should be used to collect merge candidates
|
---|
| 846 | bool mUseRaysForMerge;
|
---|
[1021] | 847 |
|
---|
[1002] | 848 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 849 | bool mMergeViewCells;
|
---|
[697] | 850 |
|
---|
| 851 | /// the width of the box filter
|
---|
| 852 | float mFilterWidth;
|
---|
[1570] | 853 | /// Maximal size of the filter in terms of contributing view cells
|
---|
[697] | 854 | int mMaxFilterSize;
|
---|
[1570] | 855 |
|
---|
[1576] | 856 | // only for debugging
|
---|
[1686] | 857 | VssRayContainer storedRays;
|
---|
| 858 |
|
---|
[1902] | 859 | bool mUseKdPvs;
|
---|
[1974] | 860 | bool mUseKdPvsAfterFiltering;
|
---|
[1902] | 861 |
|
---|
[1903] | 862 | MixtureDistribution *mMixtureDistribution;
|
---|
| 863 |
|
---|
[2048] | 864 |
|
---|
[1545] | 865 | //////////////////
|
---|
[487] | 866 | //-- visualization options
|
---|
| 867 |
|
---|
[1002] | 868 | /// color code for view cells visualization
|
---|
[1570] | 869 | bool mShowVisualization;
|
---|
[487] | 870 | int mColorCode;
|
---|
| 871 | bool mExportGeometry;
|
---|
| 872 | bool mExportRays;
|
---|
[517] | 873 | bool mViewCellsFinished;
|
---|
[664] | 874 | bool mEvaluateViewCells;
|
---|
[844] | 875 |
|
---|
| 876 | /// if pvs should be exported with view cells
|
---|
| 877 | bool mExportPvs;
|
---|
[1155] | 878 |
|
---|
[1703] | 879 | static int sRenderCostEvaluationType;
|
---|
| 880 |
|
---|
| 881 | /// if view cells geometry should be used from other sources
|
---|
[1545] | 882 | bool mUsePredefinedViewCells;
|
---|
[1942] | 883 |
|
---|
| 884 |
|
---|
| 885 | vector<PerViewCellStat> mPerViewCellStat;
|
---|
[1983] | 886 | SamplesStatistics mSamplesStat;
|
---|
[440] | 887 | };
|
---|
| 888 |
|
---|
[441] | 889 |
|
---|
[1545] | 890 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 891 | */
|
---|
| 892 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 893 | {
|
---|
| 894 |
|
---|
| 895 | public:
|
---|
[485] | 896 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 897 | used to construct the bsp tree.
|
---|
| 898 | */
|
---|
[1264] | 899 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 900 |
|
---|
[477] | 901 | ~BspViewCellsManager();
|
---|
[1582] | 902 |
|
---|
[574] | 903 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 904 | const VssRayContainer &rays);
|
---|
[440] | 905 |
|
---|
| 906 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 907 | const VssRayContainer &rays);
|
---|
[440] | 908 |
|
---|
| 909 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 910 | const VssRayContainer &sampleRays);
|
---|
[440] | 911 |
|
---|
| 912 | int GetType() const;
|
---|
| 913 |
|
---|
| 914 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 915 |
|
---|
| 916 | bool ViewCellsConstructed() const;
|
---|
| 917 |
|
---|
[475] | 918 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 919 |
|
---|
[468] | 920 | int CastLineSegment(const Vector3 &origin,
|
---|
| 921 | const Vector3 &termination,
|
---|
| 922 | ViewCellContainer &viewcells);
|
---|
| 923 |
|
---|
[1294] | 924 | /** Returns the probability that the view point lies
|
---|
| 925 | in this view cells.
|
---|
| 926 | */
|
---|
[471] | 927 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 928 |
|
---|
[1294] | 929 | /** Get a viewcell containing the specified point.
|
---|
[879] | 930 | */
|
---|
| 931 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 932 |
|
---|
[1294] | 933 | /** Creates mesh for this view cell.
|
---|
| 934 | */
|
---|
[503] | 935 | void CreateMesh(ViewCell *vc);
|
---|
| 936 |
|
---|
[1416] | 937 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 938 | ViewCell *vc,
|
---|
| 939 | const AxisAlignedBox3 *box,
|
---|
| 940 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 941 | ) const;
|
---|
[580] | 942 |
|
---|
[587] | 943 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 944 | vector<MergeCandidate> &candidates);
|
---|
[547] | 945 |
|
---|
[587] | 946 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 947 |
|
---|
[1416] | 948 | bool ExportViewCells(const string filename,
|
---|
| 949 | const bool exportPvs,
|
---|
| 950 | const ObjectContainer &objects);
|
---|
[590] | 951 |
|
---|
[752] | 952 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 953 | */
|
---|
[650] | 954 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 955 |
|
---|
[1686] | 956 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 957 | const int maxViewCells,
|
---|
| 958 | const bool sortViewCells,
|
---|
| 959 | const bool exportPvs,
|
---|
| 960 | const bool exportRays,
|
---|
| 961 | const int maxRays,
|
---|
| 962 | const string prefix,
|
---|
| 963 | VssRayContainer *visRays = NULL);
|
---|
[1545] | 964 |
|
---|
[1977] | 965 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 966 | const Vector3 &termination,
|
---|
| 967 | ViewCell *viewCell);
|
---|
| 968 |
|
---|
[440] | 969 | protected:
|
---|
| 970 |
|
---|
[480] | 971 | void CollectViewCells();
|
---|
[547] | 972 |
|
---|
[440] | 973 | /// the BSP tree.
|
---|
| 974 | BspTree *mBspTree;
|
---|
[475] | 975 | vector<BspRay *> mBspRays;
|
---|
[440] | 976 |
|
---|
| 977 | private:
|
---|
| 978 |
|
---|
[1545] | 979 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 980 | */
|
---|
| 981 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
| 982 |
|
---|
[440] | 983 | /** Exports visualization of the BSP splits.
|
---|
| 984 | */
|
---|
[477] | 985 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 986 |
|
---|
[1002] | 987 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 988 | */
|
---|
[693] | 989 | void TestSubdivision();
|
---|
[440] | 990 | };
|
---|
| 991 |
|
---|
[1545] | 992 |
|
---|
[440] | 993 | /**
|
---|
| 994 | Manages different higher order operations on the KD type view cells.
|
---|
| 995 | */
|
---|
| 996 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 997 | {
|
---|
| 998 |
|
---|
| 999 | public:
|
---|
| 1000 |
|
---|
[1264] | 1001 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 1002 |
|
---|
[574] | 1003 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 1004 | const VssRayContainer &rays);
|
---|
[440] | 1005 |
|
---|
[478] | 1006 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1007 | const Vector3 &termination,
|
---|
| 1008 | ViewCellContainer &viewcells);
|
---|
[440] | 1009 |
|
---|
| 1010 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1011 | const VssRayContainer &rays);
|
---|
[440] | 1012 |
|
---|
| 1013 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 1014 | const VssRayContainer &sampleRays);
|
---|
[440] | 1015 |
|
---|
| 1016 | int GetType() const;
|
---|
| 1017 |
|
---|
| 1018 | bool ViewCellsConstructed() const;
|
---|
| 1019 |
|
---|
[580] | 1020 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 1021 |
|
---|
[452] | 1022 | /** Prints out statistics of this approach.
|
---|
| 1023 | */
|
---|
[503] | 1024 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 1025 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 1026 | { return NULL; }
|
---|
[452] | 1027 |
|
---|
[503] | 1028 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 1029 |
|
---|
[503] | 1030 | void CreateMesh(ViewCell *vc);
|
---|
| 1031 |
|
---|
[1686] | 1032 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1033 | ViewCell *vc,
|
---|
| 1034 | const AxisAlignedBox3 *box,
|
---|
| 1035 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[547] | 1036 |
|
---|
[1416] | 1037 |
|
---|
[591] | 1038 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1039 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1040 |
|
---|
[1686] | 1041 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1042 | const int maxViewCells,
|
---|
| 1043 | const bool sortViewCells,
|
---|
| 1044 | const bool exportPvs,
|
---|
| 1045 | const bool exportRays,
|
---|
| 1046 | const int maxRays,
|
---|
| 1047 | const string prefix,
|
---|
| 1048 | VssRayContainer *visRays = NULL);
|
---|
[752] | 1049 |
|
---|
[1977] | 1050 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1051 | const Vector3 &termination,
|
---|
| 1052 | ViewCell *viewCell);
|
---|
| 1053 |
|
---|
[440] | 1054 | protected:
|
---|
| 1055 |
|
---|
[580] | 1056 | /** Collects view cells from a hierarchy.
|
---|
| 1057 | */
|
---|
[480] | 1058 | void CollectViewCells();
|
---|
[580] | 1059 |
|
---|
[480] | 1060 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 1061 |
|
---|
[1570] | 1062 | ////////////////////////////////////////
|
---|
[440] | 1063 |
|
---|
[480] | 1064 | /// the BSP tree.
|
---|
| 1065 | KdTree *mKdTree;
|
---|
[440] | 1066 |
|
---|
[480] | 1067 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 1068 | int mKdPvsDepth;
|
---|
[938] | 1069 |
|
---|
| 1070 |
|
---|
[440] | 1071 | };
|
---|
| 1072 |
|
---|
[1570] | 1073 |
|
---|
| 1074 | /** Manages different higher order operations on the view cells.
|
---|
[442] | 1075 | */
|
---|
| 1076 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 1077 | {
|
---|
| 1078 |
|
---|
| 1079 | public:
|
---|
| 1080 |
|
---|
[1264] | 1081 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 1082 | ~VspBspViewCellsManager();
|
---|
[442] | 1083 |
|
---|
[574] | 1084 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 1085 | const VssRayContainer &rays);
|
---|
[442] | 1086 |
|
---|
| 1087 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1088 | const VssRayContainer &rays);
|
---|
[442] | 1089 |
|
---|
| 1090 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 1091 | const VssRayContainer &sampleRays);
|
---|
[442] | 1092 |
|
---|
| 1093 | int GetType() const;
|
---|
| 1094 |
|
---|
| 1095 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1096 |
|
---|
| 1097 | bool ViewCellsConstructed() const;
|
---|
[468] | 1098 |
|
---|
| 1099 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1100 | const Vector3 &termination,
|
---|
| 1101 | ViewCellContainer &viewcells);
|
---|
[452] | 1102 |
|
---|
[471] | 1103 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 1104 |
|
---|
[879] | 1105 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 1106 |
|
---|
[487] | 1107 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1108 |
|
---|
[490] | 1109 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 1110 |
|
---|
| 1111 | void CreateMesh(ViewCell *vc);
|
---|
| 1112 |
|
---|
[1686] | 1113 | bool ExportViewCells(const string filename,
|
---|
| 1114 | const bool exportPvs,
|
---|
| 1115 | const ObjectContainer &objects);
|
---|
[508] | 1116 |
|
---|
[532] | 1117 | int CastBeam(Beam &beam);
|
---|
[1416] | 1118 |
|
---|
[1686] | 1119 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1120 | ViewCell *vc,
|
---|
| 1121 | const AxisAlignedBox3 *box,
|
---|
| 1122 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[532] | 1123 |
|
---|
[547] | 1124 |
|
---|
[555] | 1125 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 1126 |
|
---|
[1686] | 1127 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1128 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1129 |
|
---|
[1686] | 1130 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1131 | const int maxViewCells,
|
---|
| 1132 | const bool sortViewCells,
|
---|
| 1133 | const bool exportPvs,
|
---|
| 1134 | const bool exportRays,
|
---|
| 1135 | const int maxRays,
|
---|
| 1136 | const string prefix,
|
---|
| 1137 | VssRayContainer *visRays = NULL);
|
---|
[1570] | 1138 |
|
---|
[1920] | 1139 |
|
---|
[1977] | 1140 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1141 | const Vector3 &termination,
|
---|
| 1142 | ViewCell *viewCell);
|
---|
| 1143 |
|
---|
[442] | 1144 | protected:
|
---|
[475] | 1145 |
|
---|
[1686] | 1146 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1147 | ViewCellContainer &viewCells) const;
|
---|
[651] | 1148 |
|
---|
[1021] | 1149 | /** Merges view cells according to some criteria
|
---|
[442] | 1150 | */
|
---|
[508] | 1151 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 1152 | const ObjectContainer &objects);
|
---|
[503] | 1153 |
|
---|
[564] | 1154 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 1155 |
|
---|
[480] | 1156 | void CollectViewCells();
|
---|
| 1157 |
|
---|
[482] | 1158 | /** Returns maximal depth difference of view cell
|
---|
| 1159 | leaves in tree.
|
---|
| 1160 | */
|
---|
| 1161 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 1162 |
|
---|
[752] | 1163 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1164 | */
|
---|
[577] | 1165 | void PrepareLoadedViewCells();
|
---|
| 1166 |
|
---|
[752] | 1167 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1168 | */
|
---|
[650] | 1169 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 1170 |
|
---|
[979] | 1171 | /// HACK for testing visibility filter functionality
|
---|
[697] | 1172 | void TestFilter(const ObjectContainer &objects);
|
---|
| 1173 |
|
---|
[979] | 1174 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 1175 | from point queries.
|
---|
| 1176 | */
|
---|
| 1177 | void VisualizeWithFromPointQueries();
|
---|
[697] | 1178 |
|
---|
[991] | 1179 | /** Evaluate from point queries for the current scene.
|
---|
| 1180 | */
|
---|
| 1181 | void EvalFromPointQueries();
|
---|
[979] | 1182 |
|
---|
[1021] | 1183 | /** Exports visualization of the BSP splits.
|
---|
| 1184 | */
|
---|
| 1185 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 1186 | const VssRayContainer &rays);
|
---|
[991] | 1187 |
|
---|
[1686] | 1188 |
|
---|
| 1189 | /////////////////////////
|
---|
| 1190 |
|
---|
[442] | 1191 | /// the view space partition BSP tree.
|
---|
| 1192 | VspBspTree *mVspBspTree;
|
---|
| 1193 |
|
---|
[591] | 1194 |
|
---|
[442] | 1195 | private:
|
---|
| 1196 |
|
---|
[1021] | 1197 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 1198 | */
|
---|
[1021] | 1199 | void TestSubdivision();
|
---|
| 1200 | };
|
---|
[442] | 1201 |
|
---|
[1662] | 1202 | #define TEST_EVALUATION 0
|
---|
[1021] | 1203 |
|
---|
| 1204 | /**
|
---|
| 1205 | Manages different higher order operations on the view cells.
|
---|
| 1206 | */
|
---|
| 1207 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 1208 | {
|
---|
[1740] | 1209 | friend class ViewCellsParseHandlers;
|
---|
[1977] | 1210 |
|
---|
[1021] | 1211 | public:
|
---|
| 1212 |
|
---|
[1740] | 1213 | VspOspViewCellsManager(ViewCellsTree *vcTree, const string &hierarchyType);
|
---|
[1278] | 1214 |
|
---|
[1021] | 1215 | ~VspOspViewCellsManager();
|
---|
| 1216 |
|
---|
| 1217 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1218 | const VssRayContainer &rays);
|
---|
| 1219 |
|
---|
| 1220 | int PostProcess(const ObjectContainer &objects,
|
---|
| 1221 | const VssRayContainer &rays);
|
---|
| 1222 |
|
---|
[1686] | 1223 | void Visualize(const ObjectContainer &objects,
|
---|
[1021] | 1224 | const VssRayContainer &sampleRays);
|
---|
| 1225 |
|
---|
| 1226 | int GetType() const;
|
---|
| 1227 |
|
---|
| 1228 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1229 |
|
---|
[1977] | 1230 | virtual Intersectable *GetIntersectable(
|
---|
| 1231 | const VssRay &ray, const bool isTermination) const;
|
---|
[1743] | 1232 |
|
---|
[1021] | 1233 | bool ViewCellsConstructed() const;
|
---|
| 1234 |
|
---|
| 1235 |
|
---|
| 1236 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1237 | const Vector3 &termination,
|
---|
| 1238 | ViewCellContainer &viewcells);
|
---|
| 1239 |
|
---|
[1977] | 1240 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1241 | const Vector3 &termination,
|
---|
| 1242 | ViewCell *viewCell);
|
---|
| 1243 |
|
---|
[1021] | 1244 | float GetProbability(ViewCell *viewCell);
|
---|
| 1245 |
|
---|
| 1246 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
| 1247 |
|
---|
| 1248 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1249 |
|
---|
| 1250 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1251 |
|
---|
| 1252 | void CreateMesh(ViewCell *vc);
|
---|
| 1253 |
|
---|
[1027] | 1254 | bool ExportViewCells(const string filename,
|
---|
| 1255 | const bool exportPvs,
|
---|
| 1256 | const ObjectContainer &objects);
|
---|
[1021] | 1257 |
|
---|
| 1258 | int CastBeam(Beam &beam);
|
---|
| 1259 |
|
---|
| 1260 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1261 |
|
---|
[1977] | 1262 | ViewCellsManager *LoadViewCells(const string &filename,
|
---|
[1666] | 1263 | ObjectContainer *objects,
|
---|
| 1264 | const bool finalizeViewCells,
|
---|
| 1265 | BoundingBoxConverter *bconverter);
|
---|
[1201] | 1266 |
|
---|
[1666] | 1267 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1268 | const int maxViewCells,
|
---|
| 1269 | const bool sortViewCells,
|
---|
| 1270 | const bool exportPvs,
|
---|
| 1271 | const bool exportRays,
|
---|
| 1272 | const int maxRays,
|
---|
| 1273 | const string prefix,
|
---|
| 1274 | VssRayContainer *visRays = NULL);
|
---|
[1920] | 1275 |
|
---|
| 1276 | float UpdateObjectCosts();
|
---|
[1570] | 1277 |
|
---|
[1021] | 1278 | protected:
|
---|
[1180] | 1279 |
|
---|
[1740] | 1280 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 1281 |
|
---|
[1709] | 1282 | #if 1//TEST_EVALUATION
|
---|
| 1283 | virtual void EvalViewCellPartition();
|
---|
| 1284 | #endif
|
---|
[1416] | 1285 |
|
---|
[1027] | 1286 | /** Exports view cell geometry.
|
---|
| 1287 | */
|
---|
[1666] | 1288 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1289 | ViewCell *vc,
|
---|
| 1290 | const AxisAlignedBox3 *box,
|
---|
| 1291 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[1027] | 1292 |
|
---|
[1666] | 1293 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1294 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1295 |
|
---|
| 1296 | void CollectViewCells();
|
---|
| 1297 |
|
---|
[1845] | 1298 | virtual void CompressViewCells();
|
---|
| 1299 |
|
---|
[1021] | 1300 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1301 | */
|
---|
| 1302 | void PrepareLoadedViewCells();
|
---|
| 1303 |
|
---|
| 1304 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1305 | */
|
---|
| 1306 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
|
---|
| 1307 |
|
---|
[1074] | 1308 | /** Exports visualization of the PVS.
|
---|
[442] | 1309 | */
|
---|
[1666] | 1310 | void ExportPvs(const ObjectContainer &objects, const VssRayContainer &rays);
|
---|
[442] | 1311 |
|
---|
[1740] | 1312 | /** Returns a hierarchy manager of the given name.
|
---|
| 1313 | */
|
---|
| 1314 | static HierarchyManager *CreateHierarchyManager(const string &name);
|
---|
| 1315 |
|
---|
[1679] | 1316 | //void ExportStats(const string &mergeStats);
|
---|
[1021] | 1317 |
|
---|
[1887] | 1318 | /** collect objects intersecting a given spatial box
|
---|
[1845] | 1319 | */
|
---|
| 1320 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
|
---|
[1737] | 1321 |
|
---|
[1887] | 1322 |
|
---|
| 1323 | /////////////////////////////////////////
|
---|
| 1324 |
|
---|
| 1325 | bool mCompressObjects;
|
---|
| 1326 |
|
---|
[1027] | 1327 | HierarchyManager *mHierarchyManager;
|
---|
[442] | 1328 | };
|
---|
| 1329 |
|
---|
[575] | 1330 |
|
---|
[860] | 1331 | }
|
---|
| 1332 |
|
---|
[440] | 1333 | #endif
|
---|