[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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[1761] | 46 | struct PvsFilterStatistics {
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[1773] | 47 | PvsFilterStatistics():
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| 48 | mAvgFilterRadius(0.0f), mLocalFilterCount(0), mGlobalFilterCount(0) {}
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[1761] | 49 | float mAvgFilterRadius;
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| 50 | int mLocalFilterCount;
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| 51 | int mGlobalFilterCount;
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| 52 |
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| 53 | };
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| 54 |
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[1145] | 55 | /** Probably Visible Set
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| 56 | */
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[697] | 57 | class PrVs
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| 58 | {
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| 59 | public:
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[704] | 60 | /// root of view cells tree
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| 61 | ViewCell *mViewCell;
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| 62 |
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[880] | 63 | // input parameter is the render budget for the PrVs
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[677] | 64 | float mRenderBudget;
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| 65 |
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[1557] | 66 | // some characteristic values could be stored as well
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[677] | 67 | };
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| 68 |
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[1786] | 69 |
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| 70 | class LocalMergeNode
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| 71 | {
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| 72 | public:
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| 73 | virtual ~LocalMergeNode() {};
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| 74 | virtual bool IsLeaf() const = 0;
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| 75 | };
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| 76 |
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| 77 |
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[850] | 78 | /** Manages different higher order operations on the view cells.
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[440] | 79 | */
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| 80 | class ViewCellsManager
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| 81 | {
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| 82 | public:
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[1942] | 83 |
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| 84 | struct PerViewCellStat {
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| 85 | float pvsSize;
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| 86 | float relPvsIncrease;
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| 87 | };
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| 88 |
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| 89 | struct PvsStatistics
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[728] | 90 | {
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[1737] | 91 | float minPvs;
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| 92 | float maxPvs;
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| 93 | float avgPvs;
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[1974] | 94 | float avgPvsEntries;
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| 95 |
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[1737] | 96 | float avgFilteredPvs;
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[1974] | 97 | float avgFilteredPvsEntries;
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| 98 |
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[1737] | 99 | float avgFilterContribution;
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[1761] | 100 | float avgFilterRadius;
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| 101 | float avgFilterRatio;
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[1942] | 102 | float avgRelPvsIncrease;
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| 103 | float devRelPvsIncrease;
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[1737] | 104 | int viewcells;
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[1545] | 105 | };
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[1942] | 106 |
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[728] | 107 | /// view cell container types
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[1021] | 108 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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[466] | 109 |
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[931] | 110 | /// render cost evaluation type
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[728] | 111 | enum {PER_OBJECT, PER_TRIANGLE};
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| 112 |
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[1545] | 113 | friend class X3dViewCellsParseHandlers;
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[1709] | 114 |
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[1004] | 115 | /** Default constructor.
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[440] | 116 | */
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[1264] | 117 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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[440] | 118 |
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[462] | 119 | virtual ~ViewCellsManager();
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[440] | 120 |
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[527] | 121 | /** Constructs view cells container taking a preprocessor
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[570] | 122 | @returns the output rays (if not null)
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| 123 | */
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| 124 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 125 |
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[440] | 126 | /** Constructs view cell container with a given number of samples.
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| 127 | */
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[1709] | 128 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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| 129 | const VssRayContainer &rays) = 0;
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[440] | 130 |
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[441] | 131 | /** Computes sample contributions of the rays to the view cells PVS.
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| 132 |
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| 133 | @param rays bundle of rays used to find intersections with view cells and
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| 134 | adding the contribution
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[563] | 135 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 136 | intersect
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| 137 | @param storeViewCells true if view cells should be stored in the ray
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| 138 | */
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[697] | 139 | float ComputeSampleContributions(const VssRayContainer &rays,
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[1155] | 140 | const bool addContributions,
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| 141 | const bool storeViewCells);
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[440] | 142 |
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[1155] | 143 | /** Add sample contributions to the viewcells they intersect
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| 144 | */
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[1789] | 145 | //void AddSampleContributions(const VssRayContainer &rays);
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[563] | 146 |
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[441] | 147 |
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[475] | 148 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 149 | @param ray finds intersections with view cells and holds the contribution
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[1570] | 150 | @param addSample if sample should be added to the pvs
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| 151 |
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[475] | 152 | @returns number of sample contributions
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| 153 | */
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[1159] | 154 | virtual float ComputeSampleContribution(VssRay &ray,
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| 155 | const bool addRays,
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| 156 | const bool storeViewCells);
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[563] | 157 |
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[1977] | 158 | /** Compute sample contribution only for current view cell.
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| 159 | */
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| 160 | virtual float ComputeSampleContribution(VssRay &ray,
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| 161 | const bool addRays,
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| 162 | ViewCell *currentViewCell);
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[563] | 163 |
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[452] | 164 | /** Prints out statistics of the view cells.
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| 165 | */
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[475] | 166 | virtual void PrintStatistics(ostream &s) const;
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[452] | 167 |
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[440] | 168 | /** Post processes view cells givemŽa number of rays.
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| 169 | */
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[475] | 170 | virtual int PostProcess(const ObjectContainer &objects,
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| 171 | const VssRayContainer &rays) = 0;
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[440] | 172 |
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| 173 | /** Show visualization of the view cells.
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| 174 | */
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| 175 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 176 | const VssRayContainer &sampleRays) = 0;
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[440] | 177 |
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[1737] | 178 | /** collect objects intersecting a given spatial box */
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| 179 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
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| 180 |
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[440] | 181 | /** type of the view cell container.
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| 182 | */
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| 183 | virtual int GetType() const = 0;
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| 184 |
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[463] | 185 | /** Load the input viewcells. The input viewcells should be given as a collection
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[1545] | 186 | of meshes. Each mesh is assume to form a bounded polyhedron
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| 187 | defining the interior of the viewcell. The view cells manager
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| 188 | is responsible for building a hierarchy over these view cells.
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[463] | 189 |
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| 190 | @param filename file to load
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| 191 | @return true on success
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| 192 | */
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[1545] | 193 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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[577] | 194 |
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[440] | 195 | /** Merges two view cells.
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| 196 | @note the piercing rays of the front and back will be ordered
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| 197 | @returns new view cell based on the merging.
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| 198 | */
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[582] | 199 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 200 |
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| 201 | /** Merges a container of view cells.
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| 202 | @returns new view cell based on the merging.
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| 203 | */
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| 204 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 205 |
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[1545] | 206 | /** Generates view cell of the type specified by this manager
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[440] | 207 | */
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[580] | 208 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 209 |
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[1545] | 210 | /** Constructs view cell from base triangle.
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| 211 | The view cell is extruded along the normal vector.
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| 212 | @param the base triangle
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| 213 | @param the height of the newly created view cell
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[440] | 214 | */
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[1545] | 215 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[440] | 216 |
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[1743] | 217 |
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| 218 | virtual Intersectable *
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| 219 | GetIntersectable(const VssRay &ray, const bool isTermination) const;
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| 220 |
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[440] | 221 | /** Sets maximal number of samples used for the
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| 222 | construction of the view cells.
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| 223 | */
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| 224 | void SetVisualizationSamples(const int visSamples);
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| 225 |
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[574] | 226 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 227 | */
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| 228 | void SetConstructionSamples(const int constructionSamples);
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| 229 |
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[574] | 230 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 231 | */
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| 232 | void SetInitialSamples(const int initialSamples);
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| 233 |
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[440] | 234 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 235 | */
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| 236 | void SetPostProcessSamples(const int postProcessingSamples);
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| 237 |
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| 238 | /** See set.
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| 239 | */
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| 240 | int GetVisualizationSamples() const;
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| 241 |
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| 242 | /** See set.
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| 243 | */
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| 244 | int GetConstructionSamples() const;
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| 245 |
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| 246 | /** See set.
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| 247 | */
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| 248 | int GetPostProcessSamples() const;
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| 249 |
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[1002] | 250 | /** Returns true if view cells are already constructed.
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[440] | 251 | */
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| 252 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 253 |
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[477] | 254 | /** cast line segment to get a list of unique viewcells which are intersected
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| 255 | by this line segment
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| 256 | */
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[1977] | 257 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 258 | const Vector3 &termination,
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| 259 | ViewCellContainer &viewcells
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| 260 | ) = 0;
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| 261 |
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[1977] | 262 | /** Tests if this line segment intersects a particular view cell.
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| 263 | */
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| 264 | virtual bool LineSegmentIntersects(const Vector3 &origin,
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| 265 | const Vector3 &termination,
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| 266 | ViewCell *viewCell) = 0;
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| 267 |
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[1294] | 268 | /** Returns a stats about the global pvs.
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| 269 | */
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[477] | 270 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 271 |
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[904] | 272 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[677] | 273 |
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[697] | 274 | /** Get a viewcell containing the specified point
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[879] | 275 | @param active if the active or elementary view cell should be returned.
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[697] | 276 | */
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[879] | 277 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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[492] | 278 |
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[503] | 279 | virtual void PrintPvsStatistics(ostream &s);
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[467] | 280 |
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[719] | 281 | /** Updates pvs of the view cell hierarchy if necessary.
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| 282 | */
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| 283 | void UpdatePvs();
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| 284 |
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[477] | 285 | /** Returns probability that view point lies in one view cell.
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| 286 | */
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| 287 | virtual float GetProbability(ViewCell *viewCell) = 0;
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[468] | 288 |
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[477] | 289 | /** Returns render cost of a single view cell given the render cost of an object.
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| 290 | */
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[728] | 291 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 292 |
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[720] | 293 | /** Returns reference to container of loaded / generated view cells.
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[477] | 294 | */
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| 295 | ViewCellContainer &GetViewCells();
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[468] | 296 |
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[485] | 297 | /** Helper function used to split ray sets uniformly
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| 298 | into one that is currently used and the other that
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| 299 | is saved for later processing.
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| 300 | @param sourceRays the input ray set
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| 301 | @param maxSize the maximal number of rays that will be used
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| 302 | @param usedRays returns the used ray set
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| 303 | @param savedRays if not null, returns the saved ray set
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[477] | 304 | */
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| 305 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 306 | const int maxSize,
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| 307 | VssRayContainer &usedRays,
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| 308 | VssRayContainer *savedRays = NULL) const;
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| 309 |
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[480] | 310 | /** Returns accumulated area of all view cells.
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| 311 | */
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| 312 | float GetAccVcArea();
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[470] | 313 |
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[480] | 314 | /** Returns area of one view cell.
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| 315 | */
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| 316 | virtual float GetArea(ViewCell *viewCell) const;
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[470] | 317 |
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[551] | 318 | /** Returns volume of view cell.
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[480] | 319 | */
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| 320 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 321 |
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[480] | 322 | /** Sets the current renderer mainly for view cells statistics.
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| 323 | */
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| 324 | void SetRenderer(Renderer *renderer);
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| 325 |
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[487] | 326 | /** Computes a (random) view point in the valid view space.
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| 327 | @returns true if valid view point was found
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| 328 | */
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| 329 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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[1867] | 330 |
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| 331 | virtual bool GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const;
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[487] | 332 |
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[490] | 333 | /** Returns true if this view point is in the valid view space.
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| 334 | */
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| 335 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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| 336 |
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[487] | 337 | /** Sets a view space boundary.
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| 338 | */
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| 339 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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| 340 |
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[519] | 341 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 342 |
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[503] | 343 | /** Creates mesh for this view cell.
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| 344 | */
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| 345 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[487] | 346 |
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[508] | 347 | /** Writes view cells to disc.
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| 348 | */
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[1027] | 349 | virtual bool ExportViewCells(const string filename,
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| 350 | const bool exportPvs,
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| 351 | const ObjectContainer &objects);
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[508] | 352 |
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[532] | 353 | /** Casts beam to collect view cells.
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| 354 | */
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| 355 | virtual int CastBeam(Beam &beam);
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| 356 |
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[547] | 357 | /** Checks if view cell is considered as valid.
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| 358 | */
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[561] | 359 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 360 | int minPvsSize,
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| 361 | int maxPvsSize) const;
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[547] | 362 |
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[562] | 363 |
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| 364 | /** Sets validity of view cell
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| 365 | */
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| 366 | virtual void SetValidity(ViewCell *vc,
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| 367 | int minPvsSize,
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| 368 | int maxPvsSize) const;
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| 369 |
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[710] | 370 | /** sets validy of all viewcells
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| 371 | */
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[810] | 372 | virtual void SetValidity(int minPvsSize,
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[569] | 373 | int maxPvsSize) const;
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| 374 |
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[609] | 375 |
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| 376 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 377 | according to the pvs and then pickups those in the ranges
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| 378 | */
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| 379 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 380 |
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[1545] | 381 | /** Returns number of valid view cells.
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| 382 | */
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[609] | 383 | int CountValidViewcells() const;
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| 384 |
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[547] | 385 | /** Returns maximal allowed pvs size.
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| 386 | */
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| 387 | int GetMaxPvsSize() const;
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| 388 |
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[562] | 389 | /** Returns maximal allowed pvs size.
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| 390 | */
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| 391 | int GetMinPvsSize() const;
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[561] | 392 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 393 | where pvs is still considered valid.
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| 394 | */
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| 395 | float GetMaxPvsRatio() const;
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[547] | 396 | /** Exports view cell geometry.
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| 397 | */
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[1416] | 398 | virtual void ExportViewCellGeometry(
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| 399 | Exporter *exporter,
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| 400 | ViewCell *vc,
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| 401 | const AxisAlignedBox3 *box,
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| 402 | const AxisAlignedPlane *clipPlane = NULL
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| 403 | ) const = 0;
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[547] | 404 |
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[860] | 405 | /** Brings the view cells into their final state, computes meshes and volume.
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| 406 | */
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[551] | 407 | virtual void FinalizeViewCells(const bool createMesh);
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| 408 |
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[579] | 409 | /** Evaluates statistics values on view cells.
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| 410 | */
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[580] | 411 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 412 | float &expectedRenderCost,
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| 413 | float &deviation,
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| 414 | float &variance,
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[1709] | 415 | float &totalPvs,
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[580] | 416 | float &avgRenderCost);
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[579] | 417 |
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[580] | 418 |
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| 419 | /** Returns hierarchy of the view cells.
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| 420 | */
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| 421 | ViewCellsTree *GetViewCellsTree();
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| 422 |
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[1545] | 423 | /** Collect candidates for the view cell merge.
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| 424 | */
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[581] | 425 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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[1022] | 426 | vector<MergeCandidate> &candidates);
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[580] | 427 |
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[1294] | 428 | /** Collects n view cells and stores it as the active view cells.
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| 429 | */
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[610] | 430 | void CollectViewCells(const int n);
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| 431 |
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[1686] | 432 | /** Sets current view cells set to active,
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| 433 | i.e., the sampling is done in this view cell set.
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[660] | 434 | */
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| 435 | void SetViewCellsActive();
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[599] | 436 |
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[1145] | 437 | /** Evaluates render cost statistics of current view cell hierarchy.
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[660] | 438 | */
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[1178] | 439 | virtual void EvalViewCellPartition();
|
---|
[660] | 440 |
|
---|
[728] | 441 | /** Sets maximal size of a view cell filter.
|
---|
| 442 | */
|
---|
| 443 | void SetMaxFilterSize(const int size);
|
---|
[697] | 444 |
|
---|
[840] | 445 | /** Returns maximal filter size.
|
---|
| 446 | */
|
---|
| 447 | int GetMaxFilterSize() const;
|
---|
[746] | 448 |
|
---|
[1686] | 449 | /** Deletes interior nodes from the tree which have negative
|
---|
| 450 | merge cost set (local merge).
|
---|
[840] | 451 | */
|
---|
| 452 | void DeleteLocalMergeTree(ViewCell *vc) const;
|
---|
[713] | 453 |
|
---|
[728] | 454 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 455 | */
|
---|
| 456 | void EvalViewCellHistogram(const string filename, const int nViewCells);
|
---|
| 457 |
|
---|
[735] | 458 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 459 | */
|
---|
| 460 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
|
---|
| 461 |
|
---|
[1919] | 462 | void EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 463 | ViewCellContainer &viewCells);
|
---|
| 464 |
|
---|
[728] | 465 | /** Evaluates the render cost of a view cell.
|
---|
| 466 | */
|
---|
[1703] | 467 | static float EvalRenderCost(Intersectable *obj);
|
---|
[1002] | 468 |
|
---|
| 469 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
|
---|
| 470 | of the hierarchy.
|
---|
| 471 | */
|
---|
[1709] | 472 | void UpdateScalarPvsSize(ViewCell *vc, const float pvsCost, const int entriesInPvs) const;
|
---|
[728] | 473 |
|
---|
[870] | 474 | /** Returns bounding box of a view cell.
|
---|
| 475 | */
|
---|
| 476 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
|
---|
[859] | 477 |
|
---|
[840] | 478 | /** Exports bounding boxes of objects to file.
|
---|
| 479 | */
|
---|
| 480 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
|
---|
[931] | 481 |
|
---|
[850] | 482 | /** Load the bounding boxes into the container.
|
---|
| 483 | */
|
---|
| 484 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
|
---|
[840] | 485 |
|
---|
[1002] | 486 | /** Returns true if pvs should be exported together with the view cells.
|
---|
| 487 | */
|
---|
| 488 | bool GetExportPvs() const;
|
---|
[870] | 489 |
|
---|
[1786] | 490 | /** Efficiently merges the view cells in the container.
|
---|
| 491 | */
|
---|
[1787] | 492 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 493 | const ViewCellContainer &viewCells) const;
|
---|
[1786] | 494 |
|
---|
[1845] | 495 | virtual void CompressViewCells();
|
---|
| 496 |
|
---|
[1582] | 497 | /////////////////////////////
|
---|
| 498 | // static members
|
---|
| 499 |
|
---|
| 500 | /** Loads view cells from file. The view cells manager is created with
|
---|
| 501 | respect to the loaded view cells.
|
---|
[870] | 502 |
|
---|
[1582] | 503 | @param filename the filename of the view cells
|
---|
| 504 | @param objects the scene objects
|
---|
| 505 | @param finalizeViewCells if the view cells should be post processed, i.e.
|
---|
| 506 | a mesh is created representing the geometry
|
---|
| 507 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
[1932] | 508 | boxes: if there is a certain similarity of overlap between
|
---|
| 509 | bounding boxes, two tested
|
---|
[1582] | 510 | candidate objects are considered to be the same objects
|
---|
| 511 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 512 | */
|
---|
| 513 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 514 | ObjectContainer *objects,
|
---|
[1676] | 515 | bool finalizeViewCells = false,
|
---|
[1582] | 516 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 517 |
|
---|
[904] | 518 |
|
---|
[931] | 519 | ////////////////////////////////////////////////////////7
|
---|
| 520 | // visiblity filter options
|
---|
[1294] | 521 |
|
---|
[931] | 522 | // TODO: write own visibiltiy filter class
|
---|
[1761] | 523 | void ApplyFilter(KdTree *kdTree,
|
---|
[1932] | 524 | const float viewSpaceFilterSize,
|
---|
| 525 | const float spatialFilterSize);
|
---|
[904] | 526 |
|
---|
[1715] | 527 | // new adaptive version of the filter
|
---|
[1761] | 528 | PvsFilterStatistics
|
---|
[1715] | 529 | ApplyFilter2(ViewCell *viewCell,
|
---|
[1932] | 530 | const bool useViewSpaceFilter,
|
---|
| 531 | const float filterSize,
|
---|
| 532 | ObjectPvs &pvs,
|
---|
| 533 | vector<AxisAlignedBox3> *filteredBoxes = NULL);
|
---|
[1715] | 534 |
|
---|
[931] | 535 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 536 | const float spatialFilterSize,
|
---|
| 537 | ObjectPvs &pvs);
|
---|
[480] | 538 |
|
---|
[931] | 539 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 540 | KdTree *kdTree,
|
---|
| 541 | const float viewSpaceFilterSize,
|
---|
| 542 | const float spatialFilterSize,
|
---|
| 543 | ObjectPvs &pvs);
|
---|
| 544 |
|
---|
| 545 | float GetFilterWidth();
|
---|
| 546 |
|
---|
| 547 | float GetAbsFilterWidth();
|
---|
| 548 |
|
---|
[697] | 549 | /** Returns the bounding box of filter width.
|
---|
| 550 | */
|
---|
| 551 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 552 |
|
---|
[1294] | 553 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 554 |
|
---|
[1155] | 555 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
| 556 | */
|
---|
| 557 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
| 558 |
|
---|
| 559 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
| 560 | **/
|
---|
| 561 | bool GetStoreKdPVs() const;
|
---|
| 562 |
|
---|
[1570] | 563 | /** Exports single view cells for visualization.
|
---|
| 564 | @param objects the scene objects
|
---|
| 565 | @param limit the maximal number of output view cells
|
---|
| 566 | @param sortViewCells if the view cells should be sorted by pvs size
|
---|
| 567 | @param exportPvs if the pvs should also be exported
|
---|
| 568 | @param exportRays if sample rays should be exported as well
|
---|
[1580] | 569 | @param maxRays maximum number of rays to export
|
---|
| 570 | @param prefix the prefix for the output file
|
---|
[1570] | 571 | @param visRays additional rays
|
---|
| 572 | */
|
---|
[1686] | 573 | virtual void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 574 | const int maxViewCells,
|
---|
| 575 | const bool sortViewCells,
|
---|
| 576 | const bool exportPvs,
|
---|
| 577 | const bool exportRays,
|
---|
| 578 | const int maxRays,
|
---|
| 579 | const string prefix,
|
---|
| 580 | VssRayContainer *visRays = NULL) = NULL;
|
---|
[1570] | 581 |
|
---|
[1932] | 582 |
|
---|
[1580] | 583 | void ViewCellsManager::ResetPvs();
|
---|
| 584 |
|
---|
[1932] | 585 | Preprocessor *GetPreprocessor() const {
|
---|
| 586 | return mPreprocessor;
|
---|
| 587 | }
|
---|
[1580] | 588 |
|
---|
[1932] | 589 | void SetPreprocessor(Preprocessor *p) {
|
---|
| 590 | mPreprocessor = p;
|
---|
| 591 | }
|
---|
[1608] | 592 |
|
---|
[1932] | 593 | void UpdatePvsForEvaluation();
|
---|
| 594 |
|
---|
[931] | 595 | protected:
|
---|
[1145] | 596 |
|
---|
[1932] | 597 | void ComputeViewCellContribution(ViewCell *viewCell,
|
---|
| 598 | VssRay &ray,
|
---|
| 599 | Intersectable *obj,
|
---|
| 600 | const Vector3 &pt,
|
---|
| 601 | const bool addRays);
|
---|
| 602 |
|
---|
[1787] | 603 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 604 | const ViewCellContainer &viewCells,
|
---|
| 605 | const int leftIdx,
|
---|
| 606 | const int rightIdx) const;
|
---|
| 607 |
|
---|
[697] | 608 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
[1932] | 609 | @returns number of view cells found
|
---|
[697] | 610 | */
|
---|
[710] | 611 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 612 | ViewCellContainer &viewCells) const;
|
---|
[697] | 613 |
|
---|
[880] | 614 | /** Tests the visibility filter functionality.
|
---|
| 615 | */
|
---|
[697] | 616 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 617 |
|
---|
[931] | 618 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 619 | */
|
---|
| 620 | bool ViewCellsTreeConstructed() const;
|
---|
| 621 |
|
---|
[1294] | 622 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 623 | */
|
---|
[574] | 624 | int CastPassSamples(const int samplesPerPass,
|
---|
[1768] | 625 | const vector<int> &strategies,
|
---|
[574] | 626 | VssRayContainer &vssRays) const;
|
---|
[573] | 627 |
|
---|
[1903] | 628 | int CastPassSamples2(const int samplesPerPass,
|
---|
| 629 | VssRayContainer &passSamples) const;
|
---|
| 630 |
|
---|
[931] | 631 | /** Parse the options from the environment file.
|
---|
| 632 | */
|
---|
[482] | 633 | void ParseEnvironment();
|
---|
| 634 |
|
---|
[508] | 635 | /** Creates unique view cell ids.
|
---|
| 636 | */
|
---|
| 637 | void CreateUniqueViewCellIds();
|
---|
[547] | 638 |
|
---|
[551] | 639 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 640 | */
|
---|
| 641 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 642 |
|
---|
[480] | 643 | /** Recollects view cells and resets statistics.
|
---|
| 644 | */
|
---|
| 645 | void ResetViewCells();
|
---|
[1932] | 646 |
|
---|
[1707] | 647 | /** Sets this view cell to active.
|
---|
| 648 | */
|
---|
| 649 | void SetViewCellActive(ViewCell *vc) const;
|
---|
| 650 |
|
---|
[480] | 651 | /** Collects the view cells in the view cell container.
|
---|
| 652 | */
|
---|
| 653 | virtual void CollectViewCells() = 0;
|
---|
[1932] | 654 |
|
---|
[479] | 655 | /** Evaluates view cells statistics and stores it in
|
---|
[1932] | 656 | mViewCellsStatistics.
|
---|
[479] | 657 | */
|
---|
| 658 | void EvaluateViewCellsStats();
|
---|
[482] | 659 |
|
---|
[1932] | 660 |
|
---|
[1416] | 661 | ///////////////////////
|
---|
[482] | 662 | //-- helper functions for view cell visualization
|
---|
| 663 |
|
---|
| 664 | /** Exports the view cell partition.
|
---|
| 665 | */
|
---|
[1686] | 666 | void ExportViewCellsForViz(Exporter *exporter,
|
---|
| 667 | const AxisAlignedBox3 *box,
|
---|
[1760] | 668 | const bool colorCode,
|
---|
[1932] | 669 | const AxisAlignedPlane *clipPlane) const;
|
---|
[482] | 670 |
|
---|
| 671 | /** Sets exporter color.
|
---|
| 672 | */
|
---|
[1773] | 673 | virtual void ExportColor(Exporter *exporter,
|
---|
| 674 | ViewCell *vc,
|
---|
| 675 | const bool colorCode) const;
|
---|
[1932] | 676 |
|
---|
[1416] | 677 | /** Creates meshes from the view cells.
|
---|
| 678 | */
|
---|
| 679 | void CreateViewCellMeshes();
|
---|
[1545] | 680 |
|
---|
[1932] | 681 | /** Creates clip plane for visualization.
|
---|
[1416] | 682 | */
|
---|
| 683 | void CreateClipPlane();
|
---|
[482] | 684 |
|
---|
[1416] | 685 | AxisAlignedPlane *GetClipPlane();
|
---|
[1932] | 686 |
|
---|
[1551] | 687 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 688 |
|
---|
[1416] | 689 | ///////////////////////
|
---|
| 690 |
|
---|
[1002] | 691 | /** Returns volume of the view space.
|
---|
| 692 | */
|
---|
[557] | 693 | virtual float GetViewSpaceVolume();
|
---|
[1416] | 694 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 695 | */
|
---|
[577] | 696 | virtual void PrepareLoadedViewCells() {};
|
---|
[704] | 697 | /** Constructs local view cell merge hierarchy.
|
---|
| 698 | */
|
---|
| 699 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
[1932] | 700 | const ViewCellContainer &viewCells);
|
---|
[704] | 701 |
|
---|
[713] | 702 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
[1932] | 703 | current viewcell
|
---|
[713] | 704 | */
|
---|
| 705 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 706 | const ViewCellContainer &viewCells);
|
---|
| 707 |
|
---|
[860] | 708 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 709 | */
|
---|
[1168] | 710 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[752] | 711 |
|
---|
[1679] | 712 | virtual void ExportStats(const string &mergeStats);
|
---|
[1582] | 713 |
|
---|
| 714 |
|
---|
[979] | 715 | ////////////////////////////////////////////////
|
---|
[752] | 716 |
|
---|
[1145] | 717 | Preprocessor *mPreprocessor;
|
---|
[1902] | 718 |
|
---|
[1145] | 719 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 720 | bool mExportBboxesForPvs;
|
---|
[1902] | 721 |
|
---|
[1416] | 722 | /// the clip plane for visualization
|
---|
| 723 | AxisAlignedPlane mClipPlaneForViz;
|
---|
[1902] | 724 |
|
---|
[1416] | 725 | /// if the visualization is using the clip plane
|
---|
[660] | 726 | bool mUseClipPlaneForViz;
|
---|
[1902] | 727 |
|
---|
[480] | 728 | /// Renders the view cells.
|
---|
| 729 | Renderer *mRenderer;
|
---|
[1902] | 730 |
|
---|
[440] | 731 | /// Loaded view cells
|
---|
[469] | 732 | ViewCellContainer mViewCells;
|
---|
[1902] | 733 |
|
---|
[1416] | 734 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 735 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 736 |
|
---|
[1773] | 737 | std::vector<int> mStrategies;
|
---|
| 738 |
|
---|
[1416] | 739 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
| 740 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
| 741 | pvs size is stored in interiors and not the pvs itself.
|
---|
| 742 | */
|
---|
[719] | 743 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 744 |
|
---|
[1416] | 745 | /// maximum number of samples for the view cell construction
|
---|
[440] | 746 | int mConstructionSamples;
|
---|
[574] | 747 | int mSamplesPerPass;
|
---|
| 748 | int mInitialSamples;
|
---|
[440] | 749 | int mPostProcessSamples;
|
---|
| 750 | int mVisualizationSamples;
|
---|
[441] | 751 |
|
---|
[470] | 752 | float mTotalAreaValid;
|
---|
| 753 | float mTotalArea;
|
---|
[475] | 754 |
|
---|
[547] | 755 | int mMaxPvsSize;
|
---|
[562] | 756 | int mMinPvsSize;
|
---|
[547] | 757 | float mMaxPvsRatio;
|
---|
| 758 |
|
---|
[660] | 759 | int mSamplingType;
|
---|
[722] | 760 | int mEvaluationSamplingType;
|
---|
[600] | 761 | int mNumActiveViewCells;
|
---|
[586] | 762 | bool mCompressViewCells;
|
---|
| 763 |
|
---|
[1002] | 764 | /// holds the current view cell statistics
|
---|
[660] | 765 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 766 | /// the scene bounding box
|
---|
[542] | 767 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 768 |
|
---|
[508] | 769 | /// if view cells should be exported
|
---|
| 770 | bool mExportViewCells;
|
---|
[547] | 771 |
|
---|
[1002] | 772 | // if only valid view cells should be considered for processing
|
---|
[564] | 773 | bool mOnlyValidViewCells;
|
---|
[547] | 774 |
|
---|
[580] | 775 | /// if rays should be used to collect merge candidates
|
---|
| 776 | bool mUseRaysForMerge;
|
---|
[1021] | 777 |
|
---|
[1002] | 778 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 779 | bool mMergeViewCells;
|
---|
[697] | 780 |
|
---|
| 781 | /// the width of the box filter
|
---|
| 782 | float mFilterWidth;
|
---|
[1570] | 783 | /// Maximal size of the filter in terms of contributing view cells
|
---|
[697] | 784 | int mMaxFilterSize;
|
---|
[1570] | 785 |
|
---|
[1576] | 786 | // only for debugging
|
---|
[1686] | 787 | VssRayContainer storedRays;
|
---|
| 788 |
|
---|
[1902] | 789 | bool mUseKdPvs;
|
---|
[1974] | 790 | bool mUseKdPvsAfterFiltering;
|
---|
[1902] | 791 |
|
---|
[1903] | 792 | MixtureDistribution *mMixtureDistribution;
|
---|
| 793 |
|
---|
[1545] | 794 | //////////////////
|
---|
[487] | 795 | //-- visualization options
|
---|
| 796 |
|
---|
[1002] | 797 | /// color code for view cells visualization
|
---|
[1570] | 798 | bool mShowVisualization;
|
---|
[487] | 799 | int mColorCode;
|
---|
| 800 | bool mExportGeometry;
|
---|
| 801 | bool mExportRays;
|
---|
[517] | 802 | bool mViewCellsFinished;
|
---|
[664] | 803 | bool mEvaluateViewCells;
|
---|
[844] | 804 |
|
---|
| 805 | /// if pvs should be exported with view cells
|
---|
| 806 | bool mExportPvs;
|
---|
[1155] | 807 |
|
---|
[1703] | 808 | static int sRenderCostEvaluationType;
|
---|
| 809 |
|
---|
| 810 | /// if view cells geometry should be used from other sources
|
---|
[1545] | 811 | bool mUsePredefinedViewCells;
|
---|
[1942] | 812 |
|
---|
| 813 |
|
---|
| 814 | vector<PerViewCellStat> mPerViewCellStat;
|
---|
| 815 |
|
---|
[440] | 816 | };
|
---|
| 817 |
|
---|
[441] | 818 |
|
---|
[1545] | 819 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 820 | */
|
---|
| 821 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 822 | {
|
---|
| 823 |
|
---|
| 824 | public:
|
---|
[485] | 825 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 826 | used to construct the bsp tree.
|
---|
| 827 | */
|
---|
[1264] | 828 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 829 |
|
---|
[477] | 830 | ~BspViewCellsManager();
|
---|
[1582] | 831 |
|
---|
[574] | 832 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 833 | const VssRayContainer &rays);
|
---|
[440] | 834 |
|
---|
| 835 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 836 | const VssRayContainer &rays);
|
---|
[440] | 837 |
|
---|
| 838 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 839 | const VssRayContainer &sampleRays);
|
---|
[440] | 840 |
|
---|
| 841 | int GetType() const;
|
---|
| 842 |
|
---|
| 843 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 844 |
|
---|
| 845 | bool ViewCellsConstructed() const;
|
---|
| 846 |
|
---|
[475] | 847 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 848 |
|
---|
[468] | 849 | int CastLineSegment(const Vector3 &origin,
|
---|
| 850 | const Vector3 &termination,
|
---|
| 851 | ViewCellContainer &viewcells);
|
---|
| 852 |
|
---|
[1294] | 853 | /** Returns the probability that the view point lies
|
---|
| 854 | in this view cells.
|
---|
| 855 | */
|
---|
[471] | 856 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 857 |
|
---|
[1294] | 858 | /** Get a viewcell containing the specified point.
|
---|
[879] | 859 | */
|
---|
| 860 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 861 |
|
---|
[1294] | 862 | /** Creates mesh for this view cell.
|
---|
| 863 | */
|
---|
[503] | 864 | void CreateMesh(ViewCell *vc);
|
---|
| 865 |
|
---|
[1416] | 866 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 867 | ViewCell *vc,
|
---|
| 868 | const AxisAlignedBox3 *box,
|
---|
| 869 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 870 | ) const;
|
---|
[580] | 871 |
|
---|
[587] | 872 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 873 | vector<MergeCandidate> &candidates);
|
---|
[547] | 874 |
|
---|
[587] | 875 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 876 |
|
---|
[1416] | 877 | bool ExportViewCells(const string filename,
|
---|
| 878 | const bool exportPvs,
|
---|
| 879 | const ObjectContainer &objects);
|
---|
[590] | 880 |
|
---|
[752] | 881 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 882 | */
|
---|
[650] | 883 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 884 |
|
---|
[1686] | 885 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 886 | const int maxViewCells,
|
---|
| 887 | const bool sortViewCells,
|
---|
| 888 | const bool exportPvs,
|
---|
| 889 | const bool exportRays,
|
---|
| 890 | const int maxRays,
|
---|
| 891 | const string prefix,
|
---|
| 892 | VssRayContainer *visRays = NULL);
|
---|
[1545] | 893 |
|
---|
[1977] | 894 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 895 | const Vector3 &termination,
|
---|
| 896 | ViewCell *viewCell);
|
---|
| 897 |
|
---|
[440] | 898 | protected:
|
---|
| 899 |
|
---|
[480] | 900 | void CollectViewCells();
|
---|
[547] | 901 |
|
---|
[440] | 902 | /// the BSP tree.
|
---|
| 903 | BspTree *mBspTree;
|
---|
[475] | 904 | vector<BspRay *> mBspRays;
|
---|
[440] | 905 |
|
---|
| 906 | private:
|
---|
| 907 |
|
---|
[1545] | 908 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 909 | */
|
---|
| 910 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
| 911 |
|
---|
[440] | 912 | /** Exports visualization of the BSP splits.
|
---|
| 913 | */
|
---|
[477] | 914 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 915 |
|
---|
[1002] | 916 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 917 | */
|
---|
[693] | 918 | void TestSubdivision();
|
---|
[440] | 919 | };
|
---|
| 920 |
|
---|
[1545] | 921 |
|
---|
[440] | 922 | /**
|
---|
| 923 | Manages different higher order operations on the KD type view cells.
|
---|
| 924 | */
|
---|
| 925 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 926 | {
|
---|
| 927 |
|
---|
| 928 | public:
|
---|
| 929 |
|
---|
[1264] | 930 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 931 |
|
---|
[574] | 932 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 933 | const VssRayContainer &rays);
|
---|
[440] | 934 |
|
---|
[478] | 935 | int CastLineSegment(const Vector3 &origin,
|
---|
| 936 | const Vector3 &termination,
|
---|
| 937 | ViewCellContainer &viewcells);
|
---|
[440] | 938 |
|
---|
| 939 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 940 | const VssRayContainer &rays);
|
---|
[440] | 941 |
|
---|
| 942 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 943 | const VssRayContainer &sampleRays);
|
---|
[440] | 944 |
|
---|
| 945 | int GetType() const;
|
---|
| 946 |
|
---|
| 947 | bool ViewCellsConstructed() const;
|
---|
| 948 |
|
---|
[580] | 949 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 950 |
|
---|
[452] | 951 | /** Prints out statistics of this approach.
|
---|
| 952 | */
|
---|
[503] | 953 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 954 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 955 | { return NULL; }
|
---|
[452] | 956 |
|
---|
[503] | 957 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 958 |
|
---|
[503] | 959 | void CreateMesh(ViewCell *vc);
|
---|
| 960 |
|
---|
[1686] | 961 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 962 | ViewCell *vc,
|
---|
| 963 | const AxisAlignedBox3 *box,
|
---|
| 964 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[547] | 965 |
|
---|
[1416] | 966 |
|
---|
[591] | 967 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 968 | vector<MergeCandidate> &candidates);
|
---|
[580] | 969 |
|
---|
[1686] | 970 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 971 | const int maxViewCells,
|
---|
| 972 | const bool sortViewCells,
|
---|
| 973 | const bool exportPvs,
|
---|
| 974 | const bool exportRays,
|
---|
| 975 | const int maxRays,
|
---|
| 976 | const string prefix,
|
---|
| 977 | VssRayContainer *visRays = NULL);
|
---|
[752] | 978 |
|
---|
[1977] | 979 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 980 | const Vector3 &termination,
|
---|
| 981 | ViewCell *viewCell);
|
---|
| 982 |
|
---|
[440] | 983 | protected:
|
---|
| 984 |
|
---|
[580] | 985 | /** Collects view cells from a hierarchy.
|
---|
| 986 | */
|
---|
[480] | 987 | void CollectViewCells();
|
---|
[580] | 988 |
|
---|
[480] | 989 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 990 |
|
---|
[1570] | 991 | ////////////////////////////////////////
|
---|
[440] | 992 |
|
---|
[480] | 993 | /// the BSP tree.
|
---|
| 994 | KdTree *mKdTree;
|
---|
[440] | 995 |
|
---|
[480] | 996 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 997 | int mKdPvsDepth;
|
---|
[938] | 998 |
|
---|
| 999 |
|
---|
[440] | 1000 | };
|
---|
| 1001 |
|
---|
[1570] | 1002 |
|
---|
| 1003 | /** Manages different higher order operations on the view cells.
|
---|
[442] | 1004 | */
|
---|
| 1005 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 1006 | {
|
---|
| 1007 |
|
---|
| 1008 | public:
|
---|
| 1009 |
|
---|
[1264] | 1010 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 1011 | ~VspBspViewCellsManager();
|
---|
[442] | 1012 |
|
---|
[574] | 1013 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 1014 | const VssRayContainer &rays);
|
---|
[442] | 1015 |
|
---|
| 1016 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1017 | const VssRayContainer &rays);
|
---|
[442] | 1018 |
|
---|
| 1019 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 1020 | const VssRayContainer &sampleRays);
|
---|
[442] | 1021 |
|
---|
| 1022 | int GetType() const;
|
---|
| 1023 |
|
---|
| 1024 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1025 |
|
---|
| 1026 | bool ViewCellsConstructed() const;
|
---|
| 1027 |
|
---|
[468] | 1028 |
|
---|
| 1029 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1030 | const Vector3 &termination,
|
---|
| 1031 | ViewCellContainer &viewcells);
|
---|
[452] | 1032 |
|
---|
[471] | 1033 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 1034 |
|
---|
[879] | 1035 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 1036 |
|
---|
[487] | 1037 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1038 |
|
---|
[490] | 1039 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 1040 |
|
---|
| 1041 | void CreateMesh(ViewCell *vc);
|
---|
| 1042 |
|
---|
[1686] | 1043 | bool ExportViewCells(const string filename,
|
---|
| 1044 | const bool exportPvs,
|
---|
| 1045 | const ObjectContainer &objects);
|
---|
[508] | 1046 |
|
---|
[532] | 1047 | int CastBeam(Beam &beam);
|
---|
[1416] | 1048 |
|
---|
[1686] | 1049 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1050 | ViewCell *vc,
|
---|
| 1051 | const AxisAlignedBox3 *box,
|
---|
| 1052 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[532] | 1053 |
|
---|
[547] | 1054 |
|
---|
[555] | 1055 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 1056 |
|
---|
[1686] | 1057 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1058 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1059 |
|
---|
[1686] | 1060 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1061 | const int maxViewCells,
|
---|
| 1062 | const bool sortViewCells,
|
---|
| 1063 | const bool exportPvs,
|
---|
| 1064 | const bool exportRays,
|
---|
| 1065 | const int maxRays,
|
---|
| 1066 | const string prefix,
|
---|
| 1067 | VssRayContainer *visRays = NULL);
|
---|
[1570] | 1068 |
|
---|
[1920] | 1069 |
|
---|
[1977] | 1070 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1071 | const Vector3 &termination,
|
---|
| 1072 | ViewCell *viewCell);
|
---|
| 1073 |
|
---|
[442] | 1074 | protected:
|
---|
[475] | 1075 |
|
---|
[1686] | 1076 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1077 | ViewCellContainer &viewCells) const;
|
---|
[651] | 1078 |
|
---|
[1021] | 1079 | /** Merges view cells according to some criteria
|
---|
[442] | 1080 | */
|
---|
[508] | 1081 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 1082 | const ObjectContainer &objects);
|
---|
[503] | 1083 |
|
---|
[564] | 1084 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 1085 |
|
---|
[480] | 1086 | void CollectViewCells();
|
---|
| 1087 |
|
---|
[482] | 1088 | /** Returns maximal depth difference of view cell
|
---|
| 1089 | leaves in tree.
|
---|
| 1090 | */
|
---|
| 1091 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 1092 |
|
---|
[752] | 1093 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1094 | */
|
---|
[577] | 1095 | void PrepareLoadedViewCells();
|
---|
| 1096 |
|
---|
[752] | 1097 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1098 | */
|
---|
[650] | 1099 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 1100 |
|
---|
[979] | 1101 | /// HACK for testing visibility filter functionality
|
---|
[697] | 1102 | void TestFilter(const ObjectContainer &objects);
|
---|
| 1103 |
|
---|
[979] | 1104 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 1105 | from point queries.
|
---|
| 1106 | */
|
---|
| 1107 | void VisualizeWithFromPointQueries();
|
---|
[697] | 1108 |
|
---|
[991] | 1109 | /** Evaluate from point queries for the current scene.
|
---|
| 1110 | */
|
---|
| 1111 | void EvalFromPointQueries();
|
---|
[979] | 1112 |
|
---|
[1021] | 1113 | /** Exports visualization of the BSP splits.
|
---|
| 1114 | */
|
---|
| 1115 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 1116 | const VssRayContainer &rays);
|
---|
[991] | 1117 |
|
---|
[1686] | 1118 |
|
---|
| 1119 | /////////////////////////
|
---|
| 1120 |
|
---|
[442] | 1121 | /// the view space partition BSP tree.
|
---|
| 1122 | VspBspTree *mVspBspTree;
|
---|
| 1123 |
|
---|
[591] | 1124 |
|
---|
[442] | 1125 | private:
|
---|
| 1126 |
|
---|
[1021] | 1127 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 1128 | */
|
---|
[1021] | 1129 | void TestSubdivision();
|
---|
| 1130 | };
|
---|
[442] | 1131 |
|
---|
[1662] | 1132 | #define TEST_EVALUATION 0
|
---|
[1021] | 1133 |
|
---|
| 1134 | /**
|
---|
| 1135 | Manages different higher order operations on the view cells.
|
---|
| 1136 | */
|
---|
| 1137 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 1138 | {
|
---|
[1740] | 1139 | friend class ViewCellsParseHandlers;
|
---|
[1977] | 1140 |
|
---|
[1021] | 1141 | public:
|
---|
| 1142 |
|
---|
[1740] | 1143 | VspOspViewCellsManager(ViewCellsTree *vcTree, const string &hierarchyType);
|
---|
[1278] | 1144 |
|
---|
[1021] | 1145 | ~VspOspViewCellsManager();
|
---|
| 1146 |
|
---|
| 1147 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1148 | const VssRayContainer &rays);
|
---|
| 1149 |
|
---|
| 1150 | int PostProcess(const ObjectContainer &objects,
|
---|
| 1151 | const VssRayContainer &rays);
|
---|
| 1152 |
|
---|
[1686] | 1153 | void Visualize(const ObjectContainer &objects,
|
---|
[1021] | 1154 | const VssRayContainer &sampleRays);
|
---|
| 1155 |
|
---|
| 1156 | int GetType() const;
|
---|
| 1157 |
|
---|
| 1158 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1159 |
|
---|
[1977] | 1160 | virtual Intersectable *GetIntersectable(
|
---|
| 1161 | const VssRay &ray, const bool isTermination) const;
|
---|
[1743] | 1162 |
|
---|
[1021] | 1163 | bool ViewCellsConstructed() const;
|
---|
| 1164 |
|
---|
| 1165 |
|
---|
| 1166 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1167 | const Vector3 &termination,
|
---|
| 1168 | ViewCellContainer &viewcells);
|
---|
| 1169 |
|
---|
[1977] | 1170 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1171 | const Vector3 &termination,
|
---|
| 1172 | ViewCell *viewCell);
|
---|
| 1173 |
|
---|
[1021] | 1174 | float GetProbability(ViewCell *viewCell);
|
---|
| 1175 |
|
---|
| 1176 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
| 1177 |
|
---|
| 1178 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1179 |
|
---|
| 1180 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1181 |
|
---|
| 1182 | void CreateMesh(ViewCell *vc);
|
---|
| 1183 |
|
---|
[1027] | 1184 | bool ExportViewCells(const string filename,
|
---|
| 1185 | const bool exportPvs,
|
---|
| 1186 | const ObjectContainer &objects);
|
---|
[1021] | 1187 |
|
---|
| 1188 | int CastBeam(Beam &beam);
|
---|
| 1189 |
|
---|
| 1190 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1191 |
|
---|
[1977] | 1192 | ViewCellsManager *LoadViewCells(const string &filename,
|
---|
[1666] | 1193 | ObjectContainer *objects,
|
---|
| 1194 | const bool finalizeViewCells,
|
---|
| 1195 | BoundingBoxConverter *bconverter);
|
---|
[1201] | 1196 |
|
---|
[1666] | 1197 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1198 | const int maxViewCells,
|
---|
| 1199 | const bool sortViewCells,
|
---|
| 1200 | const bool exportPvs,
|
---|
| 1201 | const bool exportRays,
|
---|
| 1202 | const int maxRays,
|
---|
| 1203 | const string prefix,
|
---|
| 1204 | VssRayContainer *visRays = NULL);
|
---|
[1920] | 1205 |
|
---|
| 1206 | float UpdateObjectCosts();
|
---|
[1570] | 1207 |
|
---|
[1021] | 1208 | protected:
|
---|
[1180] | 1209 |
|
---|
[1740] | 1210 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 1211 |
|
---|
[1709] | 1212 | #if 1//TEST_EVALUATION
|
---|
| 1213 | virtual void EvalViewCellPartition();
|
---|
| 1214 | #endif
|
---|
[1416] | 1215 |
|
---|
[1027] | 1216 | /** Exports view cell geometry.
|
---|
| 1217 | */
|
---|
[1666] | 1218 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1219 | ViewCell *vc,
|
---|
| 1220 | const AxisAlignedBox3 *box,
|
---|
| 1221 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[1027] | 1222 |
|
---|
[1666] | 1223 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1224 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1225 |
|
---|
| 1226 | void CollectViewCells();
|
---|
| 1227 |
|
---|
[1845] | 1228 | virtual void CompressViewCells();
|
---|
| 1229 |
|
---|
[1021] | 1230 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1231 | */
|
---|
| 1232 | void PrepareLoadedViewCells();
|
---|
| 1233 |
|
---|
| 1234 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1235 | */
|
---|
| 1236 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
|
---|
| 1237 |
|
---|
[1074] | 1238 | /** Exports visualization of the PVS.
|
---|
[442] | 1239 | */
|
---|
[1666] | 1240 | void ExportPvs(const ObjectContainer &objects, const VssRayContainer &rays);
|
---|
[442] | 1241 |
|
---|
[1740] | 1242 | /** Returns a hierarchy manager of the given name.
|
---|
| 1243 | */
|
---|
| 1244 | static HierarchyManager *CreateHierarchyManager(const string &name);
|
---|
| 1245 |
|
---|
[1679] | 1246 | //void ExportStats(const string &mergeStats);
|
---|
[1021] | 1247 |
|
---|
[1887] | 1248 | /** collect objects intersecting a given spatial box
|
---|
[1845] | 1249 | */
|
---|
| 1250 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
|
---|
[1737] | 1251 |
|
---|
[1887] | 1252 |
|
---|
| 1253 | /////////////////////////////////////////
|
---|
| 1254 |
|
---|
| 1255 |
|
---|
| 1256 | bool mCompressObjects;
|
---|
| 1257 |
|
---|
[1027] | 1258 | HierarchyManager *mHierarchyManager;
|
---|
[442] | 1259 | };
|
---|
| 1260 |
|
---|
[575] | 1261 |
|
---|
[860] | 1262 | }
|
---|
| 1263 |
|
---|
[440] | 1264 | #endif
|
---|