[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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[1259] | 41 |
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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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[1761] | 45 | struct PvsFilterStatistics {
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[1773] | 46 | PvsFilterStatistics():
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| 47 | mAvgFilterRadius(0.0f), mLocalFilterCount(0), mGlobalFilterCount(0) {}
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[1761] | 48 | float mAvgFilterRadius;
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| 49 | int mLocalFilterCount;
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| 50 | int mGlobalFilterCount;
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| 51 |
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| 52 | };
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| 53 |
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[1145] | 54 | /** Probably Visible Set
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| 55 | */
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[697] | 56 | class PrVs
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| 57 | {
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| 58 | public:
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[704] | 59 | /// root of view cells tree
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| 60 | ViewCell *mViewCell;
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| 61 |
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[880] | 62 | // input parameter is the render budget for the PrVs
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[677] | 63 | float mRenderBudget;
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| 64 |
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[1557] | 65 | // some characteristic values could be stored as well
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[677] | 66 | };
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| 67 |
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[1786] | 68 |
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| 69 | class LocalMergeNode
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| 70 | {
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| 71 | public:
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| 72 | virtual ~LocalMergeNode() {};
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| 73 | virtual bool IsLeaf() const = 0;
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| 74 | };
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| 75 |
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| 76 |
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[850] | 77 | /** Manages different higher order operations on the view cells.
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[440] | 78 | */
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| 79 | class ViewCellsManager
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| 80 | {
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| 81 | public:
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[728] | 82 | struct PvsStatistics
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| 83 | {
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[1737] | 84 | float minPvs;
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| 85 | float maxPvs;
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| 86 | float avgPvs;
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| 87 | float avgFilteredPvs;
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| 88 | float avgFilterContribution;
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[1761] | 89 | float avgFilterRadius;
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| 90 | float avgFilterRatio;
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[1737] | 91 | int viewcells;
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[1761] | 92 |
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[1545] | 93 | };
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[697] | 94 |
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[728] | 95 | /// view cell container types
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[1021] | 96 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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[466] | 97 |
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[931] | 98 | /// render cost evaluation type
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[728] | 99 | enum {PER_OBJECT, PER_TRIANGLE};
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| 100 |
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[1545] | 101 | friend class X3dViewCellsParseHandlers;
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[1709] | 102 |
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[1004] | 103 | /** Default constructor.
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[440] | 104 | */
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[1264] | 105 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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[440] | 106 |
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[462] | 107 | virtual ~ViewCellsManager();
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[440] | 108 |
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[527] | 109 | /** Constructs view cells container taking a preprocessor
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[570] | 110 | @returns the output rays (if not null)
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| 111 | */
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| 112 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 113 |
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[440] | 114 | /** Constructs view cell container with a given number of samples.
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| 115 | */
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[1709] | 116 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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| 117 | const VssRayContainer &rays) = 0;
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[440] | 118 |
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[441] | 119 | /** Computes sample contributions of the rays to the view cells PVS.
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| 120 |
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| 121 | @param rays bundle of rays used to find intersections with view cells and
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| 122 | adding the contribution
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[563] | 123 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 124 | intersect
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| 125 | @param storeViewCells true if view cells should be stored in the ray
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| 126 | */
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[697] | 127 | float ComputeSampleContributions(const VssRayContainer &rays,
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[1155] | 128 | const bool addContributions,
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| 129 | const bool storeViewCells);
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[440] | 130 |
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[1155] | 131 | /** Add sample contributions to the viewcells they intersect
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| 132 | */
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[1789] | 133 | //void AddSampleContributions(const VssRayContainer &rays);
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[563] | 134 |
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[441] | 135 |
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[475] | 136 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 137 | @param ray finds intersections with view cells and holds the contribution
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[1570] | 138 | @param addSample if sample should be added to the pvs
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| 139 |
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[475] | 140 | @returns number of sample contributions
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| 141 | */
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[1159] | 142 | virtual float ComputeSampleContribution(VssRay &ray,
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| 143 | const bool addRays,
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| 144 | const bool storeViewCells);
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[563] | 145 |
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[1789] | 146 | //virtual void AddSampleContributions(VssRay &ray);
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[563] | 147 |
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[452] | 148 | /** Prints out statistics of the view cells.
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| 149 | */
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[475] | 150 | virtual void PrintStatistics(ostream &s) const;
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[452] | 151 |
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[440] | 152 | /** Post processes view cells givemŽa number of rays.
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| 153 | */
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[475] | 154 | virtual int PostProcess(const ObjectContainer &objects,
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| 155 | const VssRayContainer &rays) = 0;
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[440] | 156 |
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| 157 | /** Show visualization of the view cells.
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| 158 | */
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| 159 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 160 | const VssRayContainer &sampleRays) = 0;
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[440] | 161 |
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[1737] | 162 | /** collect objects intersecting a given spatial box */
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| 163 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
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| 164 |
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[440] | 165 | /** type of the view cell container.
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| 166 | */
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| 167 | virtual int GetType() const = 0;
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| 168 |
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[463] | 169 | /** Load the input viewcells. The input viewcells should be given as a collection
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[1545] | 170 | of meshes. Each mesh is assume to form a bounded polyhedron
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| 171 | defining the interior of the viewcell. The view cells manager
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| 172 | is responsible for building a hierarchy over these view cells.
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[463] | 173 |
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| 174 | @param filename file to load
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| 175 | @return true on success
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| 176 | */
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[1545] | 177 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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[577] | 178 |
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[440] | 179 | /** Merges two view cells.
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| 180 | @note the piercing rays of the front and back will be ordered
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| 181 | @returns new view cell based on the merging.
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| 182 | */
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[582] | 183 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 184 |
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| 185 | /** Merges a container of view cells.
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| 186 | @returns new view cell based on the merging.
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| 187 | */
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| 188 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 189 |
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[1545] | 190 | /** Generates view cell of the type specified by this manager
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[440] | 191 | */
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[580] | 192 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 193 |
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[1545] | 194 | /** Constructs view cell from base triangle.
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| 195 | The view cell is extruded along the normal vector.
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| 196 | @param the base triangle
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| 197 | @param the height of the newly created view cell
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[440] | 198 | */
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[1545] | 199 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[440] | 200 |
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[1743] | 201 |
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| 202 | virtual Intersectable *
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| 203 | GetIntersectable(const VssRay &ray, const bool isTermination) const;
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| 204 |
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[440] | 205 | /** Sets maximal number of samples used for the
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| 206 | construction of the view cells.
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| 207 | */
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| 208 | void SetVisualizationSamples(const int visSamples);
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| 209 |
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[574] | 210 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 211 | */
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| 212 | void SetConstructionSamples(const int constructionSamples);
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| 213 |
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[574] | 214 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 215 | */
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| 216 | void SetInitialSamples(const int initialSamples);
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| 217 |
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[440] | 218 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 219 | */
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| 220 | void SetPostProcessSamples(const int postProcessingSamples);
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| 221 |
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| 222 | /** See set.
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| 223 | */
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| 224 | int GetVisualizationSamples() const;
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| 225 |
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| 226 | /** See set.
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| 227 | */
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| 228 | int GetConstructionSamples() const;
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| 229 |
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| 230 | /** See set.
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| 231 | */
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| 232 | int GetPostProcessSamples() const;
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| 233 |
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[1002] | 234 | /** Returns true if view cells are already constructed.
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[440] | 235 | */
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| 236 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 237 |
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[477] | 238 | /** cast line segment to get a list of unique viewcells which are intersected
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| 239 | by this line segment
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| 240 | */
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[466] | 241 |
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[477] | 242 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 243 | const Vector3 &termination,
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| 244 | ViewCellContainer &viewcells
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| 245 | ) = 0;
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| 246 |
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[1294] | 247 | /** Returns a stats about the global pvs.
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| 248 | */
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[477] | 249 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 250 |
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[904] | 251 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[677] | 252 |
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[697] | 253 | /** Get a viewcell containing the specified point
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[879] | 254 | @param active if the active or elementary view cell should be returned.
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[697] | 255 | */
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[879] | 256 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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[492] | 257 |
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[503] | 258 | virtual void PrintPvsStatistics(ostream &s);
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[467] | 259 |
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[719] | 260 | /** Updates pvs of the view cell hierarchy if necessary.
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| 261 | */
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| 262 | void UpdatePvs();
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| 263 |
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[477] | 264 | /** Returns probability that view point lies in one view cell.
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| 265 | */
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| 266 | virtual float GetProbability(ViewCell *viewCell) = 0;
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[468] | 267 |
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[477] | 268 | /** Returns render cost of a single view cell given the render cost of an object.
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| 269 | */
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[728] | 270 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 271 |
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[720] | 272 | /** Returns reference to container of loaded / generated view cells.
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[477] | 273 | */
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| 274 | ViewCellContainer &GetViewCells();
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[468] | 275 |
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[485] | 276 | /** Helper function used to split ray sets uniformly
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| 277 | into one that is currently used and the other that
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| 278 | is saved for later processing.
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| 279 | @param sourceRays the input ray set
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| 280 | @param maxSize the maximal number of rays that will be used
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| 281 | @param usedRays returns the used ray set
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| 282 | @param savedRays if not null, returns the saved ray set
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[477] | 283 | */
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| 284 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 285 | const int maxSize,
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| 286 | VssRayContainer &usedRays,
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| 287 | VssRayContainer *savedRays = NULL) const;
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| 288 |
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[480] | 289 | /** Returns accumulated area of all view cells.
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| 290 | */
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| 291 | float GetAccVcArea();
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[470] | 292 |
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[480] | 293 | /** Returns area of one view cell.
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| 294 | */
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| 295 | virtual float GetArea(ViewCell *viewCell) const;
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[470] | 296 |
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[551] | 297 | /** Returns volume of view cell.
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[480] | 298 | */
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| 299 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 300 |
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[480] | 301 | /** Sets the current renderer mainly for view cells statistics.
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| 302 | */
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| 303 | void SetRenderer(Renderer *renderer);
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| 304 |
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[487] | 305 | /** Computes a (random) view point in the valid view space.
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| 306 | @returns true if valid view point was found
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| 307 | */
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| 308 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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[1867] | 309 |
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| 310 | virtual bool GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const;
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[487] | 311 |
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[490] | 312 | /** Returns true if this view point is in the valid view space.
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| 313 | */
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| 314 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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| 315 |
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[487] | 316 | /** Sets a view space boundary.
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| 317 | */
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| 318 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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| 319 |
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[519] | 320 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 321 |
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[503] | 322 | /** Creates mesh for this view cell.
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| 323 | */
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| 324 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[487] | 325 |
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[508] | 326 | /** Writes view cells to disc.
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| 327 | */
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[1027] | 328 | virtual bool ExportViewCells(const string filename,
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| 329 | const bool exportPvs,
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| 330 | const ObjectContainer &objects);
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[508] | 331 |
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[532] | 332 | /** Casts beam to collect view cells.
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| 333 | */
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| 334 | virtual int CastBeam(Beam &beam);
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| 335 |
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[547] | 336 | /** Checks if view cell is considered as valid.
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| 337 | */
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[561] | 338 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 339 | int minPvsSize,
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| 340 | int maxPvsSize) const;
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[547] | 341 |
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[562] | 342 |
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| 343 | /** Sets validity of view cell
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| 344 | */
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| 345 | virtual void SetValidity(ViewCell *vc,
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| 346 | int minPvsSize,
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| 347 | int maxPvsSize) const;
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| 348 |
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[710] | 349 | /** sets validy of all viewcells
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| 350 | */
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[810] | 351 | virtual void SetValidity(int minPvsSize,
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[569] | 352 | int maxPvsSize) const;
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| 353 |
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[609] | 354 |
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| 355 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 356 | according to the pvs and then pickups those in the ranges
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| 357 | */
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| 358 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 359 |
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[1545] | 360 | /** Returns number of valid view cells.
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| 361 | */
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[609] | 362 | int CountValidViewcells() const;
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| 363 |
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[547] | 364 | /** Returns maximal allowed pvs size.
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| 365 | */
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| 366 | int GetMaxPvsSize() const;
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| 367 |
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[562] | 368 | /** Returns maximal allowed pvs size.
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| 369 | */
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| 370 | int GetMinPvsSize() const;
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[561] | 371 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 372 | where pvs is still considered valid.
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| 373 | */
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| 374 | float GetMaxPvsRatio() const;
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[547] | 375 | /** Exports view cell geometry.
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| 376 | */
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[1416] | 377 | virtual void ExportViewCellGeometry(
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| 378 | Exporter *exporter,
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| 379 | ViewCell *vc,
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| 380 | const AxisAlignedBox3 *box,
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| 381 | const AxisAlignedPlane *clipPlane = NULL
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| 382 | ) const = 0;
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[547] | 383 |
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[860] | 384 | /** Brings the view cells into their final state, computes meshes and volume.
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| 385 | */
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[551] | 386 | virtual void FinalizeViewCells(const bool createMesh);
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| 387 |
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[579] | 388 | /** Evaluates statistics values on view cells.
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| 389 | */
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[580] | 390 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 391 | float &expectedRenderCost,
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| 392 | float &deviation,
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| 393 | float &variance,
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[1709] | 394 | float &totalPvs,
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[580] | 395 | float &avgRenderCost);
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[579] | 396 |
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[580] | 397 |
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| 398 | /** Returns hierarchy of the view cells.
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| 399 | */
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| 400 | ViewCellsTree *GetViewCellsTree();
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| 401 |
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[1545] | 402 | /** Collect candidates for the view cell merge.
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| 403 | */
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[581] | 404 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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[1022] | 405 | vector<MergeCandidate> &candidates);
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[580] | 406 |
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[1294] | 407 | /** Collects n view cells and stores it as the active view cells.
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| 408 | */
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[610] | 409 | void CollectViewCells(const int n);
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| 410 |
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[1686] | 411 | /** Sets current view cells set to active,
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| 412 | i.e., the sampling is done in this view cell set.
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[660] | 413 | */
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| 414 | void SetViewCellsActive();
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[599] | 415 |
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[1145] | 416 | /** Evaluates render cost statistics of current view cell hierarchy.
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[660] | 417 | */
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[1178] | 418 | virtual void EvalViewCellPartition();
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[660] | 419 |
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[728] | 420 | /** Sets maximal size of a view cell filter.
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| 421 | */
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| 422 | void SetMaxFilterSize(const int size);
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[697] | 423 |
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[840] | 424 | /** Returns maximal filter size.
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| 425 | */
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| 426 | int GetMaxFilterSize() const;
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[746] | 427 |
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[1686] | 428 | /** Deletes interior nodes from the tree which have negative
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| 429 | merge cost set (local merge).
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[840] | 430 | */
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| 431 | void DeleteLocalMergeTree(ViewCell *vc) const;
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[713] | 432 |
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[728] | 433 | /** Evaluautes histogram for a given number of view cells.
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| 434 | */
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| 435 | void EvalViewCellHistogram(const string filename, const int nViewCells);
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| 436 |
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[735] | 437 | /** Evaluautes histogram for a given number of view cells.
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| 438 | */
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| 439 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
|
---|
| 440 |
|
---|
[728] | 441 | /** Evaluates the render cost of a view cell.
|
---|
| 442 | */
|
---|
[1703] | 443 | static float EvalRenderCost(Intersectable *obj);
|
---|
[1002] | 444 |
|
---|
| 445 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
|
---|
| 446 | of the hierarchy.
|
---|
| 447 | */
|
---|
[1709] | 448 | void UpdateScalarPvsSize(ViewCell *vc, const float pvsCost, const int entriesInPvs) const;
|
---|
[728] | 449 |
|
---|
[870] | 450 | /** Returns bounding box of a view cell.
|
---|
| 451 | */
|
---|
| 452 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
|
---|
[859] | 453 |
|
---|
[840] | 454 | /** Exports bounding boxes of objects to file.
|
---|
| 455 | */
|
---|
| 456 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
|
---|
[931] | 457 |
|
---|
[850] | 458 | /** Load the bounding boxes into the container.
|
---|
| 459 | */
|
---|
| 460 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
|
---|
[840] | 461 |
|
---|
[1002] | 462 | /** Returns true if pvs should be exported together with the view cells.
|
---|
| 463 | */
|
---|
| 464 | bool GetExportPvs() const;
|
---|
[870] | 465 |
|
---|
[1786] | 466 | /** Efficiently merges the view cells in the container.
|
---|
| 467 | */
|
---|
[1787] | 468 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 469 | const ViewCellContainer &viewCells) const;
|
---|
[1786] | 470 |
|
---|
[1845] | 471 | virtual void CompressViewCells();
|
---|
| 472 |
|
---|
[1582] | 473 | /////////////////////////////
|
---|
| 474 | // static members
|
---|
| 475 |
|
---|
| 476 | /** Loads view cells from file. The view cells manager is created with
|
---|
| 477 | respect to the loaded view cells.
|
---|
[870] | 478 |
|
---|
[1582] | 479 | @param filename the filename of the view cells
|
---|
| 480 | @param objects the scene objects
|
---|
| 481 | @param finalizeViewCells if the view cells should be post processed, i.e.
|
---|
| 482 | a mesh is created representing the geometry
|
---|
| 483 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
| 484 | boxes: if there is a certain similarity of overlap between bounding boxes, two tested
|
---|
| 485 | candidate objects are considered to be the same objects
|
---|
| 486 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 487 | */
|
---|
| 488 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 489 | ObjectContainer *objects,
|
---|
[1676] | 490 | bool finalizeViewCells = false,
|
---|
[1582] | 491 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 492 |
|
---|
[904] | 493 |
|
---|
[931] | 494 | ////////////////////////////////////////////////////////7
|
---|
| 495 | // visiblity filter options
|
---|
[1294] | 496 |
|
---|
[931] | 497 | // TODO: write own visibiltiy filter class
|
---|
[1761] | 498 | void ApplyFilter(KdTree *kdTree,
|
---|
[931] | 499 | const float viewSpaceFilterSize,
|
---|
| 500 | const float spatialFilterSize);
|
---|
[904] | 501 |
|
---|
[1715] | 502 | // new adaptive version of the filter
|
---|
[1761] | 503 | PvsFilterStatistics
|
---|
[1715] | 504 | ApplyFilter2(ViewCell *viewCell,
|
---|
[1824] | 505 | const bool useViewSpaceFilter,
|
---|
| 506 | const float filterSize,
|
---|
| 507 | ObjectPvs &pvs,
|
---|
| 508 | vector<AxisAlignedBox3> *filteredBoxes = NULL
|
---|
| 509 | );
|
---|
[1715] | 510 |
|
---|
[931] | 511 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 512 | const float spatialFilterSize,
|
---|
| 513 | ObjectPvs &pvs);
|
---|
[480] | 514 |
|
---|
[931] | 515 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 516 | KdTree *kdTree,
|
---|
| 517 | const float viewSpaceFilterSize,
|
---|
| 518 | const float spatialFilterSize,
|
---|
| 519 | ObjectPvs &pvs);
|
---|
| 520 |
|
---|
| 521 | float GetFilterWidth();
|
---|
| 522 |
|
---|
| 523 | float GetAbsFilterWidth();
|
---|
| 524 |
|
---|
[697] | 525 | /** Returns the bounding box of filter width.
|
---|
| 526 | */
|
---|
| 527 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 528 |
|
---|
[1294] | 529 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 530 |
|
---|
[1155] | 531 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
| 532 | */
|
---|
| 533 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
| 534 |
|
---|
| 535 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
| 536 | **/
|
---|
| 537 | bool GetStoreKdPVs() const;
|
---|
| 538 |
|
---|
[1570] | 539 | /** Exports single view cells for visualization.
|
---|
| 540 | @param objects the scene objects
|
---|
| 541 | @param limit the maximal number of output view cells
|
---|
| 542 | @param sortViewCells if the view cells should be sorted by pvs size
|
---|
| 543 | @param exportPvs if the pvs should also be exported
|
---|
| 544 | @param exportRays if sample rays should be exported as well
|
---|
[1580] | 545 | @param maxRays maximum number of rays to export
|
---|
| 546 | @param prefix the prefix for the output file
|
---|
[1570] | 547 | @param visRays additional rays
|
---|
| 548 | */
|
---|
[1686] | 549 | virtual void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 550 | const int maxViewCells,
|
---|
| 551 | const bool sortViewCells,
|
---|
| 552 | const bool exportPvs,
|
---|
| 553 | const bool exportRays,
|
---|
| 554 | const int maxRays,
|
---|
| 555 | const string prefix,
|
---|
| 556 | VssRayContainer *visRays = NULL) = NULL;
|
---|
[1570] | 557 |
|
---|
[1580] | 558 |
|
---|
| 559 | void ViewCellsManager::ResetPvs();
|
---|
[1582] | 560 |
|
---|
| 561 | Preprocessor *GetPreprocessor() const {
|
---|
| 562 | return mPreprocessor;
|
---|
| 563 | }
|
---|
[1580] | 564 |
|
---|
[1582] | 565 | void SetPreprocessor(Preprocessor *p) {
|
---|
| 566 | mPreprocessor = p;
|
---|
| 567 | }
|
---|
[1580] | 568 |
|
---|
[1608] | 569 | void UpdatePvsForEvaluation();
|
---|
| 570 |
|
---|
[931] | 571 | protected:
|
---|
[1145] | 572 |
|
---|
[1787] | 573 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 574 | const ViewCellContainer &viewCells,
|
---|
| 575 | const int leftIdx,
|
---|
| 576 | const int rightIdx) const;
|
---|
| 577 |
|
---|
[697] | 578 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
| 579 | @returns number of view cells found
|
---|
| 580 | */
|
---|
[710] | 581 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 582 | ViewCellContainer &viewCells) const;
|
---|
[697] | 583 |
|
---|
[880] | 584 | /** Tests the visibility filter functionality.
|
---|
| 585 | */
|
---|
[697] | 586 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 587 |
|
---|
[931] | 588 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 589 | */
|
---|
| 590 | bool ViewCellsTreeConstructed() const;
|
---|
| 591 |
|
---|
[1294] | 592 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 593 | */
|
---|
[574] | 594 | int CastPassSamples(const int samplesPerPass,
|
---|
[1768] | 595 | const vector<int> &strategies,
|
---|
[574] | 596 | VssRayContainer &vssRays) const;
|
---|
[573] | 597 |
|
---|
[931] | 598 | /** Parse the options from the environment file.
|
---|
| 599 | */
|
---|
[482] | 600 | void ParseEnvironment();
|
---|
| 601 |
|
---|
[508] | 602 | /** Creates unique view cell ids.
|
---|
| 603 | */
|
---|
| 604 | void CreateUniqueViewCellIds();
|
---|
[547] | 605 |
|
---|
[551] | 606 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 607 | */
|
---|
| 608 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 609 |
|
---|
[480] | 610 | /** Recollects view cells and resets statistics.
|
---|
| 611 | */
|
---|
| 612 | void ResetViewCells();
|
---|
[482] | 613 |
|
---|
[1707] | 614 | /** Sets this view cell to active.
|
---|
| 615 | */
|
---|
| 616 | void SetViewCellActive(ViewCell *vc) const;
|
---|
| 617 |
|
---|
[480] | 618 | /** Collects the view cells in the view cell container.
|
---|
| 619 | */
|
---|
| 620 | virtual void CollectViewCells() = 0;
|
---|
[482] | 621 |
|
---|
[479] | 622 | /** Evaluates view cells statistics and stores it in
|
---|
| 623 | mViewCellsStatistics.
|
---|
| 624 | */
|
---|
| 625 | void EvaluateViewCellsStats();
|
---|
[482] | 626 |
|
---|
[1580] | 627 |
|
---|
[1416] | 628 | ///////////////////////
|
---|
[482] | 629 | //-- helper functions for view cell visualization
|
---|
| 630 |
|
---|
| 631 | /** Exports the view cell partition.
|
---|
| 632 | */
|
---|
[1686] | 633 | void ExportViewCellsForViz(Exporter *exporter,
|
---|
| 634 | const AxisAlignedBox3 *box,
|
---|
[1760] | 635 | const bool colorCode,
|
---|
| 636 | const AxisAlignedPlane *clipPlane
|
---|
| 637 | ) const;
|
---|
[482] | 638 |
|
---|
| 639 | /** Sets exporter color.
|
---|
| 640 | */
|
---|
[1773] | 641 | virtual void ExportColor(Exporter *exporter,
|
---|
| 642 | ViewCell *vc,
|
---|
| 643 | const bool colorCode) const;
|
---|
[1545] | 644 |
|
---|
[1416] | 645 | /** Creates meshes from the view cells.
|
---|
| 646 | */
|
---|
| 647 | void CreateViewCellMeshes();
|
---|
[1545] | 648 |
|
---|
| 649 | /** Creates clip plane for visualization.
|
---|
[1416] | 650 | */
|
---|
| 651 | void CreateClipPlane();
|
---|
[482] | 652 |
|
---|
[1416] | 653 | AxisAlignedPlane *GetClipPlane();
|
---|
[1545] | 654 |
|
---|
[1551] | 655 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 656 |
|
---|
[1416] | 657 | ///////////////////////
|
---|
| 658 |
|
---|
[1002] | 659 | /** Returns volume of the view space.
|
---|
| 660 | */
|
---|
[557] | 661 | virtual float GetViewSpaceVolume();
|
---|
[1416] | 662 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 663 | */
|
---|
[577] | 664 | virtual void PrepareLoadedViewCells() {};
|
---|
[704] | 665 | /** Constructs local view cell merge hierarchy.
|
---|
| 666 | */
|
---|
| 667 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 668 | const ViewCellContainer &viewCells);
|
---|
| 669 |
|
---|
[713] | 670 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
| 671 | current viewcell
|
---|
| 672 | */
|
---|
| 673 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 674 | const ViewCellContainer &viewCells);
|
---|
| 675 |
|
---|
[860] | 676 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 677 | */
|
---|
[1168] | 678 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[752] | 679 |
|
---|
[1679] | 680 | virtual void ExportStats(const string &mergeStats);
|
---|
[1582] | 681 |
|
---|
| 682 |
|
---|
[979] | 683 | ////////////////////////////////////////////////
|
---|
[752] | 684 |
|
---|
[1145] | 685 | Preprocessor *mPreprocessor;
|
---|
| 686 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 687 | bool mExportBboxesForPvs;
|
---|
[1416] | 688 | /// the clip plane for visualization
|
---|
| 689 | AxisAlignedPlane mClipPlaneForViz;
|
---|
| 690 | /// if the visualization is using the clip plane
|
---|
[660] | 691 | bool mUseClipPlaneForViz;
|
---|
[480] | 692 | /// Renders the view cells.
|
---|
| 693 | Renderer *mRenderer;
|
---|
[440] | 694 | /// Loaded view cells
|
---|
[469] | 695 | ViewCellContainer mViewCells;
|
---|
[1416] | 696 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 697 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 698 |
|
---|
[1773] | 699 | std::vector<int> mStrategies;
|
---|
| 700 |
|
---|
[1416] | 701 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
| 702 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
| 703 | pvs size is stored in interiors and not the pvs itself.
|
---|
| 704 | */
|
---|
[719] | 705 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 706 |
|
---|
[1416] | 707 | /// maximum number of samples for the view cell construction
|
---|
[440] | 708 | int mConstructionSamples;
|
---|
[574] | 709 | int mSamplesPerPass;
|
---|
| 710 | int mInitialSamples;
|
---|
[440] | 711 | int mPostProcessSamples;
|
---|
| 712 | int mVisualizationSamples;
|
---|
[441] | 713 |
|
---|
[470] | 714 | float mTotalAreaValid;
|
---|
| 715 | float mTotalArea;
|
---|
[475] | 716 |
|
---|
[547] | 717 | int mMaxPvsSize;
|
---|
[562] | 718 | int mMinPvsSize;
|
---|
[547] | 719 | float mMaxPvsRatio;
|
---|
| 720 |
|
---|
[660] | 721 | int mSamplingType;
|
---|
[722] | 722 | int mEvaluationSamplingType;
|
---|
[600] | 723 | int mNumActiveViewCells;
|
---|
[586] | 724 | bool mCompressViewCells;
|
---|
| 725 |
|
---|
[1002] | 726 | /// holds the current view cell statistics
|
---|
[660] | 727 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 728 | /// the scene bounding box
|
---|
[542] | 729 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 730 |
|
---|
[508] | 731 | /// if view cells should be exported
|
---|
| 732 | bool mExportViewCells;
|
---|
[547] | 733 |
|
---|
[1002] | 734 | // if only valid view cells should be considered for processing
|
---|
[564] | 735 | bool mOnlyValidViewCells;
|
---|
[547] | 736 |
|
---|
[580] | 737 | /// if rays should be used to collect merge candidates
|
---|
| 738 | bool mUseRaysForMerge;
|
---|
[1021] | 739 |
|
---|
[1002] | 740 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 741 | bool mMergeViewCells;
|
---|
[697] | 742 |
|
---|
| 743 | /// the width of the box filter
|
---|
| 744 | float mFilterWidth;
|
---|
[1570] | 745 | /// Maximal size of the filter in terms of contributing view cells
|
---|
[697] | 746 | int mMaxFilterSize;
|
---|
[1570] | 747 |
|
---|
[1576] | 748 | // only for debugging
|
---|
[1686] | 749 | VssRayContainer storedRays;
|
---|
| 750 |
|
---|
[1545] | 751 | //////////////////
|
---|
[487] | 752 | //-- visualization options
|
---|
| 753 |
|
---|
[1002] | 754 | /// color code for view cells visualization
|
---|
[1570] | 755 | bool mShowVisualization;
|
---|
[487] | 756 | int mColorCode;
|
---|
| 757 | bool mExportGeometry;
|
---|
| 758 | bool mExportRays;
|
---|
[517] | 759 | bool mViewCellsFinished;
|
---|
[664] | 760 | bool mEvaluateViewCells;
|
---|
[844] | 761 |
|
---|
| 762 | /// if pvs should be exported with view cells
|
---|
| 763 | bool mExportPvs;
|
---|
[1155] | 764 |
|
---|
[1703] | 765 | static int sRenderCostEvaluationType;
|
---|
| 766 |
|
---|
| 767 | /// if view cells geometry should be used from other sources
|
---|
[1545] | 768 | bool mUsePredefinedViewCells;
|
---|
[440] | 769 | };
|
---|
| 770 |
|
---|
[441] | 771 |
|
---|
[1545] | 772 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 773 | */
|
---|
| 774 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 775 | {
|
---|
| 776 |
|
---|
| 777 | public:
|
---|
[485] | 778 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 779 | used to construct the bsp tree.
|
---|
| 780 | */
|
---|
[1264] | 781 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 782 |
|
---|
[477] | 783 | ~BspViewCellsManager();
|
---|
[1582] | 784 |
|
---|
[574] | 785 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 786 | const VssRayContainer &rays);
|
---|
[440] | 787 |
|
---|
| 788 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 789 | const VssRayContainer &rays);
|
---|
[440] | 790 |
|
---|
| 791 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 792 | const VssRayContainer &sampleRays);
|
---|
[440] | 793 |
|
---|
| 794 | int GetType() const;
|
---|
| 795 |
|
---|
| 796 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 797 |
|
---|
| 798 | bool ViewCellsConstructed() const;
|
---|
| 799 |
|
---|
[475] | 800 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 801 |
|
---|
[468] | 802 | int CastLineSegment(const Vector3 &origin,
|
---|
| 803 | const Vector3 &termination,
|
---|
| 804 | ViewCellContainer &viewcells);
|
---|
| 805 |
|
---|
[1294] | 806 | /** Returns the probability that the view point lies
|
---|
| 807 | in this view cells.
|
---|
| 808 | */
|
---|
[471] | 809 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 810 |
|
---|
[1294] | 811 | /** Get a viewcell containing the specified point.
|
---|
[879] | 812 | */
|
---|
| 813 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 814 |
|
---|
[1294] | 815 | /** Creates mesh for this view cell.
|
---|
| 816 | */
|
---|
[503] | 817 | void CreateMesh(ViewCell *vc);
|
---|
| 818 |
|
---|
[1416] | 819 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 820 | ViewCell *vc,
|
---|
| 821 | const AxisAlignedBox3 *box,
|
---|
| 822 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 823 | ) const;
|
---|
[580] | 824 |
|
---|
[587] | 825 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 826 | vector<MergeCandidate> &candidates);
|
---|
[547] | 827 |
|
---|
[587] | 828 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 829 |
|
---|
[1416] | 830 | bool ExportViewCells(const string filename,
|
---|
| 831 | const bool exportPvs,
|
---|
| 832 | const ObjectContainer &objects);
|
---|
[590] | 833 |
|
---|
[752] | 834 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 835 | */
|
---|
[650] | 836 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 837 |
|
---|
[1686] | 838 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 839 | const int maxViewCells,
|
---|
| 840 | const bool sortViewCells,
|
---|
| 841 | const bool exportPvs,
|
---|
| 842 | const bool exportRays,
|
---|
| 843 | const int maxRays,
|
---|
| 844 | const string prefix,
|
---|
| 845 | VssRayContainer *visRays = NULL);
|
---|
[1545] | 846 |
|
---|
[440] | 847 | protected:
|
---|
| 848 |
|
---|
[480] | 849 | void CollectViewCells();
|
---|
[547] | 850 |
|
---|
[440] | 851 | /// the BSP tree.
|
---|
| 852 | BspTree *mBspTree;
|
---|
[475] | 853 | vector<BspRay *> mBspRays;
|
---|
[440] | 854 |
|
---|
| 855 | private:
|
---|
| 856 |
|
---|
[1545] | 857 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 858 | */
|
---|
| 859 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
| 860 |
|
---|
[440] | 861 | /** Exports visualization of the BSP splits.
|
---|
| 862 | */
|
---|
[477] | 863 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 864 |
|
---|
[1002] | 865 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 866 | */
|
---|
[693] | 867 | void TestSubdivision();
|
---|
[440] | 868 | };
|
---|
| 869 |
|
---|
[1545] | 870 |
|
---|
[440] | 871 | /**
|
---|
| 872 | Manages different higher order operations on the KD type view cells.
|
---|
| 873 | */
|
---|
| 874 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 875 | {
|
---|
| 876 |
|
---|
| 877 | public:
|
---|
| 878 |
|
---|
[1264] | 879 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 880 |
|
---|
[574] | 881 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 882 | const VssRayContainer &rays);
|
---|
[440] | 883 |
|
---|
[478] | 884 | int CastLineSegment(const Vector3 &origin,
|
---|
| 885 | const Vector3 &termination,
|
---|
| 886 | ViewCellContainer &viewcells);
|
---|
[440] | 887 |
|
---|
| 888 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 889 | const VssRayContainer &rays);
|
---|
[440] | 890 |
|
---|
| 891 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 892 | const VssRayContainer &sampleRays);
|
---|
[440] | 893 |
|
---|
| 894 | int GetType() const;
|
---|
| 895 |
|
---|
| 896 | bool ViewCellsConstructed() const;
|
---|
| 897 |
|
---|
[580] | 898 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 899 |
|
---|
[452] | 900 | /** Prints out statistics of this approach.
|
---|
| 901 | */
|
---|
[503] | 902 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 903 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 904 | { return NULL; }
|
---|
[452] | 905 |
|
---|
[503] | 906 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 907 |
|
---|
[503] | 908 | void CreateMesh(ViewCell *vc);
|
---|
| 909 |
|
---|
[1686] | 910 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 911 | ViewCell *vc,
|
---|
| 912 | const AxisAlignedBox3 *box,
|
---|
| 913 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[547] | 914 |
|
---|
[1416] | 915 |
|
---|
[591] | 916 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 917 | vector<MergeCandidate> &candidates);
|
---|
[580] | 918 |
|
---|
[1686] | 919 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 920 | const int maxViewCells,
|
---|
| 921 | const bool sortViewCells,
|
---|
| 922 | const bool exportPvs,
|
---|
| 923 | const bool exportRays,
|
---|
| 924 | const int maxRays,
|
---|
| 925 | const string prefix,
|
---|
| 926 | VssRayContainer *visRays = NULL);
|
---|
[752] | 927 |
|
---|
[440] | 928 | protected:
|
---|
| 929 |
|
---|
[580] | 930 | /** Collects view cells from a hierarchy.
|
---|
| 931 | */
|
---|
[480] | 932 | void CollectViewCells();
|
---|
[580] | 933 |
|
---|
[480] | 934 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 935 |
|
---|
[1570] | 936 | ////////////////////////////////////////
|
---|
[440] | 937 |
|
---|
[480] | 938 | /// the BSP tree.
|
---|
| 939 | KdTree *mKdTree;
|
---|
[440] | 940 |
|
---|
[480] | 941 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 942 | int mKdPvsDepth;
|
---|
[938] | 943 |
|
---|
| 944 |
|
---|
[440] | 945 | };
|
---|
| 946 |
|
---|
[1570] | 947 |
|
---|
| 948 | /** Manages different higher order operations on the view cells.
|
---|
[442] | 949 | */
|
---|
| 950 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 951 | {
|
---|
| 952 |
|
---|
| 953 | public:
|
---|
| 954 |
|
---|
[1264] | 955 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 956 | ~VspBspViewCellsManager();
|
---|
[442] | 957 |
|
---|
[574] | 958 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 959 | const VssRayContainer &rays);
|
---|
[442] | 960 |
|
---|
| 961 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 962 | const VssRayContainer &rays);
|
---|
[442] | 963 |
|
---|
| 964 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 965 | const VssRayContainer &sampleRays);
|
---|
[442] | 966 |
|
---|
| 967 | int GetType() const;
|
---|
| 968 |
|
---|
| 969 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 970 |
|
---|
| 971 | bool ViewCellsConstructed() const;
|
---|
| 972 |
|
---|
[468] | 973 |
|
---|
| 974 | int CastLineSegment(const Vector3 &origin,
|
---|
| 975 | const Vector3 &termination,
|
---|
| 976 | ViewCellContainer &viewcells);
|
---|
[452] | 977 |
|
---|
[471] | 978 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 979 |
|
---|
[879] | 980 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 981 |
|
---|
[487] | 982 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 983 |
|
---|
[490] | 984 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 985 |
|
---|
| 986 | void CreateMesh(ViewCell *vc);
|
---|
| 987 |
|
---|
[1686] | 988 | bool ExportViewCells(const string filename,
|
---|
| 989 | const bool exportPvs,
|
---|
| 990 | const ObjectContainer &objects);
|
---|
[508] | 991 |
|
---|
[532] | 992 | int CastBeam(Beam &beam);
|
---|
[1416] | 993 |
|
---|
[1686] | 994 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 995 | ViewCell *vc,
|
---|
| 996 | const AxisAlignedBox3 *box,
|
---|
| 997 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[532] | 998 |
|
---|
[547] | 999 |
|
---|
[555] | 1000 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 1001 |
|
---|
[1686] | 1002 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1003 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1004 |
|
---|
[1686] | 1005 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1006 | const int maxViewCells,
|
---|
| 1007 | const bool sortViewCells,
|
---|
| 1008 | const bool exportPvs,
|
---|
| 1009 | const bool exportRays,
|
---|
| 1010 | const int maxRays,
|
---|
| 1011 | const string prefix,
|
---|
| 1012 | VssRayContainer *visRays = NULL);
|
---|
[1570] | 1013 |
|
---|
| 1014 |
|
---|
[442] | 1015 | protected:
|
---|
[475] | 1016 |
|
---|
[1686] | 1017 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1018 | ViewCellContainer &viewCells) const;
|
---|
[651] | 1019 |
|
---|
[1021] | 1020 | /** Merges view cells according to some criteria
|
---|
[442] | 1021 | */
|
---|
[508] | 1022 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 1023 | const ObjectContainer &objects);
|
---|
[503] | 1024 |
|
---|
[564] | 1025 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 1026 |
|
---|
[480] | 1027 | void CollectViewCells();
|
---|
| 1028 |
|
---|
[482] | 1029 | /** Returns maximal depth difference of view cell
|
---|
| 1030 | leaves in tree.
|
---|
| 1031 | */
|
---|
| 1032 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 1033 |
|
---|
[752] | 1034 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1035 | */
|
---|
[577] | 1036 | void PrepareLoadedViewCells();
|
---|
| 1037 |
|
---|
[752] | 1038 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1039 | */
|
---|
[650] | 1040 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 1041 |
|
---|
[979] | 1042 | /// HACK for testing visibility filter functionality
|
---|
[697] | 1043 | void TestFilter(const ObjectContainer &objects);
|
---|
| 1044 |
|
---|
[979] | 1045 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 1046 | from point queries.
|
---|
| 1047 | */
|
---|
| 1048 | void VisualizeWithFromPointQueries();
|
---|
[697] | 1049 |
|
---|
[991] | 1050 | /** Evaluate from point queries for the current scene.
|
---|
| 1051 | */
|
---|
| 1052 | void EvalFromPointQueries();
|
---|
[979] | 1053 |
|
---|
[1021] | 1054 | /** Exports visualization of the BSP splits.
|
---|
| 1055 | */
|
---|
| 1056 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 1057 | const VssRayContainer &rays);
|
---|
[991] | 1058 |
|
---|
[1686] | 1059 |
|
---|
| 1060 | /////////////////////////
|
---|
| 1061 |
|
---|
[442] | 1062 | /// the view space partition BSP tree.
|
---|
| 1063 | VspBspTree *mVspBspTree;
|
---|
| 1064 |
|
---|
[591] | 1065 |
|
---|
[442] | 1066 | private:
|
---|
| 1067 |
|
---|
[1021] | 1068 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 1069 | */
|
---|
[1021] | 1070 | void TestSubdivision();
|
---|
| 1071 | };
|
---|
[442] | 1072 |
|
---|
[1662] | 1073 | #define TEST_EVALUATION 0
|
---|
[1021] | 1074 |
|
---|
| 1075 | /**
|
---|
| 1076 | Manages different higher order operations on the view cells.
|
---|
| 1077 | */
|
---|
| 1078 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 1079 | {
|
---|
[1740] | 1080 | friend class ViewCellsParseHandlers;
|
---|
[1021] | 1081 | public:
|
---|
| 1082 |
|
---|
[1740] | 1083 | VspOspViewCellsManager(ViewCellsTree *vcTree, const string &hierarchyType);
|
---|
[1278] | 1084 |
|
---|
[1021] | 1085 | ~VspOspViewCellsManager();
|
---|
| 1086 |
|
---|
| 1087 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1088 | const VssRayContainer &rays);
|
---|
| 1089 |
|
---|
| 1090 | int PostProcess(const ObjectContainer &objects,
|
---|
| 1091 | const VssRayContainer &rays);
|
---|
| 1092 |
|
---|
[1686] | 1093 | void Visualize(const ObjectContainer &objects,
|
---|
[1021] | 1094 | const VssRayContainer &sampleRays);
|
---|
| 1095 |
|
---|
| 1096 | int GetType() const;
|
---|
| 1097 |
|
---|
| 1098 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1099 |
|
---|
[1743] | 1100 | virtual Intersectable *
|
---|
| 1101 | GetIntersectable(const VssRay &ray, const bool isTermination) const;
|
---|
| 1102 |
|
---|
[1021] | 1103 | bool ViewCellsConstructed() const;
|
---|
| 1104 |
|
---|
| 1105 |
|
---|
| 1106 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1107 | const Vector3 &termination,
|
---|
| 1108 | ViewCellContainer &viewcells);
|
---|
| 1109 |
|
---|
| 1110 | float GetProbability(ViewCell *viewCell);
|
---|
| 1111 |
|
---|
| 1112 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
| 1113 |
|
---|
| 1114 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1115 |
|
---|
| 1116 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1117 |
|
---|
| 1118 | void CreateMesh(ViewCell *vc);
|
---|
| 1119 |
|
---|
[1027] | 1120 | bool ExportViewCells(const string filename,
|
---|
| 1121 | const bool exportPvs,
|
---|
| 1122 | const ObjectContainer &objects);
|
---|
[1021] | 1123 |
|
---|
| 1124 | int CastBeam(Beam &beam);
|
---|
| 1125 |
|
---|
| 1126 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1127 |
|
---|
[1159] | 1128 | /** Stores sample contribution for kd cells or objects.
|
---|
| 1129 | */
|
---|
[1877] | 1130 | // virtual float ComputeSampleContribution(VssRay &ray,
|
---|
| 1131 | // const bool addRays,
|
---|
| 1132 | // const bool storeViewCells);
|
---|
[1021] | 1133 |
|
---|
[1201] | 1134 | ViewCellsManager *LoadViewCells(const string &filename,
|
---|
[1666] | 1135 | ObjectContainer *objects,
|
---|
| 1136 | const bool finalizeViewCells,
|
---|
| 1137 | BoundingBoxConverter *bconverter);
|
---|
[1201] | 1138 |
|
---|
[1666] | 1139 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1140 | const int maxViewCells,
|
---|
| 1141 | const bool sortViewCells,
|
---|
| 1142 | const bool exportPvs,
|
---|
| 1143 | const bool exportRays,
|
---|
| 1144 | const int maxRays,
|
---|
| 1145 | const string prefix,
|
---|
| 1146 | VssRayContainer *visRays = NULL);
|
---|
[1570] | 1147 |
|
---|
[1021] | 1148 | protected:
|
---|
[1180] | 1149 |
|
---|
[1740] | 1150 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 1151 |
|
---|
[1709] | 1152 | #if 1//TEST_EVALUATION
|
---|
| 1153 | virtual void EvalViewCellPartition();
|
---|
| 1154 | #endif
|
---|
[1416] | 1155 |
|
---|
[1027] | 1156 | /** Exports view cell geometry.
|
---|
| 1157 | */
|
---|
[1666] | 1158 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1159 | ViewCell *vc,
|
---|
| 1160 | const AxisAlignedBox3 *box,
|
---|
| 1161 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[1027] | 1162 |
|
---|
[1666] | 1163 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1164 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1165 |
|
---|
| 1166 | void CollectViewCells();
|
---|
| 1167 |
|
---|
[1845] | 1168 | virtual void CompressViewCells();
|
---|
| 1169 |
|
---|
[1021] | 1170 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1171 | */
|
---|
| 1172 | void PrepareLoadedViewCells();
|
---|
| 1173 |
|
---|
| 1174 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1175 | */
|
---|
| 1176 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
|
---|
| 1177 |
|
---|
[1074] | 1178 | /** Exports visualization of the PVS.
|
---|
[442] | 1179 | */
|
---|
[1666] | 1180 | void ExportPvs(const ObjectContainer &objects, const VssRayContainer &rays);
|
---|
[442] | 1181 |
|
---|
[1740] | 1182 | /** Returns a hierarchy manager of the given name.
|
---|
| 1183 | */
|
---|
| 1184 | static HierarchyManager *CreateHierarchyManager(const string &name);
|
---|
| 1185 |
|
---|
[1679] | 1186 | //void ExportStats(const string &mergeStats);
|
---|
[1021] | 1187 |
|
---|
[1887] | 1188 | /** collect objects intersecting a given spatial box
|
---|
[1845] | 1189 | */
|
---|
| 1190 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
|
---|
[1737] | 1191 |
|
---|
[1887] | 1192 |
|
---|
| 1193 | /////////////////////////////////////////
|
---|
| 1194 |
|
---|
| 1195 |
|
---|
| 1196 | bool mCompressObjects;
|
---|
| 1197 |
|
---|
[1027] | 1198 | HierarchyManager *mHierarchyManager;
|
---|
[442] | 1199 | };
|
---|
| 1200 |
|
---|
[575] | 1201 |
|
---|
[860] | 1202 | }
|
---|
| 1203 |
|
---|
[440] | 1204 | #endif
|
---|