[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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| 10 | class ViewCell;
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| 11 | class Intersectable;
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| 12 | class RenderSimulator;
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[480] | 13 | class Renderer;
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[440] | 14 | class Mesh;
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| 15 | struct Triangle3;
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| 16 | class SimulationStatistics;
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| 17 | class BspTree;
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| 18 | class KdTree;
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| 19 | class VspKdTree;
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| 20 | class VspBspTree;
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| 21 | class KdNode;
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| 22 | class KdLeaf;
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| 23 | class VspKdTree;
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| 24 | class AxisAlignedBox3;
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[448] | 25 | class BspLeaf;
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[475] | 26 | class ViewCellsStatistics;
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[482] | 27 | class Exporter;
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[532] | 28 | class Beam;
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[570] | 29 | class Preprocessor;
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[580] | 30 | class ViewCellsTree;
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| 31 | class MergeCandidate;
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[503] | 32 |
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[475] | 33 | struct BspRay;
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| 34 |
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[677] | 35 |
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| 36 | /** Probably Visible Set */
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[697] | 37 | class PrVs
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| 38 | {
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| 39 | public:
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[704] | 40 | /// root of view cells tree
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| 41 | ViewCell *mViewCell;
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| 42 |
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[677] | 43 | // input parameter is the render budget for the PrVS
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| 44 | float mRenderBudget;
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| 45 |
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| 46 | /// some characteristic values could be here
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| 47 |
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| 48 | };
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| 49 |
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[440] | 50 | /**
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| 51 | Manages different higher order operations on the view cells.
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| 52 | */
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| 53 | class ViewCellsManager
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| 54 | {
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| 55 | public:
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[728] | 56 | struct PvsStatistics
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| 57 | {
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| 58 | int minPvs;
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| 59 | int maxPvs;
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| 60 | float avgPvs;
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| 61 | int viewcells;
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[467] | 62 | };
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[697] | 63 |
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[728] | 64 | /// view cell container types
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| 65 | enum {BSP, KD, VSP_KD, VSP_BSP};
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[466] | 66 |
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[728] | 67 | /// view cells evaluation type
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| 68 | enum {PER_OBJECT, PER_TRIANGLE};
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| 69 |
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[574] | 70 | /** Constructor taking the initial and construction samples.
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| 71 | @param initialSamples the maximal number of samples used for creating the hierarchy
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| 72 | of view cells
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| 73 | @param constructionSamples the maximal number of samples used for construction
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[440] | 74 | */
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[574] | 75 | ViewCellsManager(const int initialSamples, const int constructionSamples);
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[440] | 76 |
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| 77 | ViewCellsManager();
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| 78 |
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[462] | 79 | virtual ~ViewCellsManager();
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[440] | 80 |
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[527] | 81 | /** Constructs view cells container taking a preprocessor
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[570] | 82 | @returns the output rays (if not null)
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| 83 | */
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| 84 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 85 |
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[440] | 86 | /** Constructs view cell container with a given number of samples.
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| 87 | */
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[574] | 88 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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[487] | 89 | const VssRayContainer &rays) = 0;
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[440] | 90 |
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[441] | 91 | /** Computes sample contributions of the rays to the view cells PVS.
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| 92 |
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| 93 | @param rays bundle of rays used to find intersections with view cells and
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| 94 | adding the contribution
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[563] | 95 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 96 | intersect
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| 97 | @param storeViewCells true if view cells should be stored in the ray
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| 98 | */
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[697] | 99 | float ComputeSampleContributions(const VssRayContainer &rays,
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[574] | 100 | const bool addContributions,
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| 101 | const bool storeViewCells);
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[440] | 102 |
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[697] | 103 | /** Add sample contributions to the viewcells they intersect */
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| 104 | void AddSampleContributions(const VssRayContainer &rays);
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[563] | 105 |
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[441] | 106 |
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[475] | 107 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 108 | @param ray finds intersections with view cells and holds the contribution
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| 109 | @param castRay true if ray should be cast to gain the information, false if ray
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| 110 | is already holding the information and need not be recast.
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[466] | 111 |
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[475] | 112 | @returns number of sample contributions
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| 113 | */
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[591] | 114 | virtual float ComputeSampleContributions(VssRay &ray,
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| 115 | const bool addRays,
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| 116 | const bool storeViewCells);
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[563] | 117 |
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[591] | 118 | virtual void AddSampleContributions(VssRay &ray);
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[563] | 119 |
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[452] | 120 | /** Prints out statistics of the view cells.
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| 121 | */
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[475] | 122 | virtual void PrintStatistics(ostream &s) const;
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[452] | 123 |
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[440] | 124 | /** Post processes view cells givemŽa number of rays.
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| 125 | */
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[475] | 126 | virtual int PostProcess(const ObjectContainer &objects,
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| 127 | const VssRayContainer &rays) = 0;
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[440] | 128 |
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| 129 | /** Show visualization of the view cells.
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| 130 | */
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| 131 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 132 | const VssRayContainer &sampleRays) = 0;
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[440] | 133 |
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| 134 | /** type of the view cell container.
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| 135 | */
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| 136 | virtual int GetType() const = 0;
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| 137 |
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[463] | 138 | /** Load the input viewcells. The input viewcells should be given as a collection
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| 139 | of meshes. Each mesh is assume to form a bounded polyhedron defining the interior of
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| 140 | the viewcell. The method then builds a BSP tree of these view cells.
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| 141 |
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| 142 | @param filename file to load
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| 143 | @return true on success
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| 144 | */
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[577] | 145 | virtual bool LoadViewCellsGeometry(const string filename);
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[440] | 146 |
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[577] | 147 |
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[440] | 148 | /** Constructs view cell from base triangle. The ViewCell is extruded along the normal vector.
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| 149 | @param the base triangle
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| 150 | @param the height of the newly created view cell
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| 151 | */
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| 152 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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| 153 |
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| 154 | /** Merges two view cells.
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| 155 | @note the piercing rays of the front and back will be ordered
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| 156 | @returns new view cell based on the merging.
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| 157 | */
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[582] | 158 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 159 |
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| 160 | /** Merges a container of view cells.
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| 161 | @returns new view cell based on the merging.
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| 162 | */
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| 163 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 164 |
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| 165 | /** Generates view cell of type specified by this manager
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| 166 | */
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[580] | 167 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 168 |
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| 169 | /** Adds a new view cell to the list of predefined view cells.
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| 170 | */
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| 171 | void AddViewCell(ViewCell *viewCell);
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| 172 |
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| 173 | /** Derive view cells from objects.
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| 174 | */
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| 175 | void DeriveViewCells(const ObjectContainer &objects,
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| 176 | ViewCellContainer &viewCells,
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| 177 | const int maxViewCells) const;
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| 178 |
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| 179 | /** Sets maximal number of samples used for the
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| 180 | construction of the view cells.
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| 181 | */
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| 182 | void SetVisualizationSamples(const int visSamples);
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| 183 |
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[574] | 184 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 185 | */
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| 186 | void SetConstructionSamples(const int constructionSamples);
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| 187 |
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[574] | 188 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 189 | */
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| 190 | void SetInitialSamples(const int initialSamples);
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| 191 |
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[440] | 192 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 193 | */
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| 194 | void SetPostProcessSamples(const int postProcessingSamples);
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| 195 |
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| 196 | /** See set.
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| 197 | */
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| 198 | int GetVisualizationSamples() const;
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| 199 |
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| 200 | /** See set.
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| 201 | */
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| 202 | int GetConstructionSamples() const;
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| 203 |
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| 204 | /** See set.
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| 205 | */
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| 206 | int GetPostProcessSamples() const;
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| 207 |
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| 208 | /** Returns true if view cells wer already constructed.
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| 209 | */
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| 210 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 211 |
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[477] | 212 | /** cast line segment to get a list of unique viewcells which are intersected
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| 213 | by this line segment
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| 214 | */
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[466] | 215 |
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[477] | 216 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 217 | const Vector3 &termination,
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| 218 | ViewCellContainer &viewcells
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| 219 | ) = 0;
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| 220 |
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[477] | 221 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 222 |
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[697] | 223 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs);
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[677] | 224 |
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[697] | 225 | /** Get a viewcell containing the specified point
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| 226 | */
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[569] | 227 | virtual ViewCell *GetViewCell(const Vector3 &point) const = 0;
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[492] | 228 |
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[503] | 229 | virtual void PrintPvsStatistics(ostream &s);
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[467] | 230 |
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[719] | 231 | /** Updates pvs of the view cell hierarchy if necessary.
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| 232 | */
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| 233 | void UpdatePvs();
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| 234 |
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[477] | 235 | /** Returns probability that view point lies in one view cell.
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| 236 | */
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| 237 | virtual float GetProbability(ViewCell *viewCell) = 0;
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[468] | 238 |
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[477] | 239 | /** Returns render cost of a single view cell given the render cost of an object.
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| 240 | */
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[728] | 241 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 242 |
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[720] | 243 | /** Returns reference to container of loaded / generated view cells.
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[477] | 244 | */
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| 245 | ViewCellContainer &GetViewCells();
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[468] | 246 |
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[485] | 247 | /** Helper function used to split ray sets uniformly
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| 248 | into one that is currently used and the other that
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| 249 | is saved for later processing.
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| 250 | @param sourceRays the input ray set
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| 251 | @param maxSize the maximal number of rays that will be used
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| 252 | @param usedRays returns the used ray set
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| 253 | @param savedRays if not null, returns the saved ray set
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[477] | 254 | */
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| 255 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 256 | const int maxSize,
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| 257 | VssRayContainer &usedRays,
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| 258 | VssRayContainer *savedRays = NULL) const;
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| 259 |
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[480] | 260 | /** Returns accumulated area of all view cells.
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| 261 | */
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| 262 | float GetAccVcArea();
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[470] | 263 |
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[480] | 264 | /** Returns area of one view cell.
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| 265 | */
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| 266 | virtual float GetArea(ViewCell *viewCell) const;
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[470] | 267 |
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[551] | 268 | /** Returns volume of view cell.
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[480] | 269 | */
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| 270 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 271 |
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[480] | 272 | /** Sets the current renderer mainly for view cells statistics.
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| 273 | */
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| 274 | void SetRenderer(Renderer *renderer);
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| 275 |
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[487] | 276 | /** Computes a (random) view point in the valid view space.
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| 277 | @returns true if valid view point was found
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| 278 | */
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| 279 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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| 280 |
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[490] | 281 | /** Returns true if this view point is in the valid view space.
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| 282 | */
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| 283 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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| 284 |
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[487] | 285 | /** Sets a view space boundary.
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| 286 | */
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| 287 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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| 288 |
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[519] | 289 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 290 |
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[503] | 291 | /** Creates mesh for this view cell.
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| 292 | */
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| 293 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[487] | 294 |
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[508] | 295 | /** Writes view cells to disc.
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| 296 | */
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| 297 | virtual bool ExportViewCells(const string filename);
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| 298 |
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[532] | 299 | /** Casts beam to collect view cells.
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| 300 | */
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| 301 | virtual int CastBeam(Beam &beam);
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| 302 |
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[547] | 303 | /** Checks if view cell is considered as valid.
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| 304 | */
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[561] | 305 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 306 | int minPvsSize,
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| 307 | int maxPvsSize) const;
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[547] | 308 |
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[562] | 309 |
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| 310 | /** Sets validity of view cell
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| 311 | */
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| 312 | virtual void SetValidity(ViewCell *vc,
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| 313 | int minPvsSize,
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| 314 | int maxPvsSize) const;
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| 315 |
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[710] | 316 | /** sets validy of all viewcells
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| 317 | */
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[810] | 318 | virtual void SetValidity(int minPvsSize,
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[569] | 319 | int maxPvsSize) const;
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| 320 |
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[609] | 321 |
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| 322 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 323 | according to the pvs and then pickups those in the ranges
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| 324 | */
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| 325 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 326 |
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[609] | 327 | int CountValidViewcells() const;
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| 328 |
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[547] | 329 | /** Returns maximal allowed pvs size.
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| 330 | */
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| 331 | int GetMaxPvsSize() const;
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| 332 |
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[562] | 333 | /** Returns maximal allowed pvs size.
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| 334 | */
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| 335 | int GetMinPvsSize() const;
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| 336 |
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[561] | 337 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 338 | where pvs is still considered valid.
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| 339 | */
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| 340 | float GetMaxPvsRatio() const;
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| 341 |
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[547] | 342 | /** Exports view cell geometry.
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| 343 | */
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[591] | 344 | virtual void ExportViewCellGeometry(Exporter *exporter,
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| 345 | ViewCell *vc,
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[660] | 346 | const Plane3 *clipPlane = NULL) const = 0;
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[547] | 347 |
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[551] | 348 | virtual void FinalizeViewCells(const bool createMesh);
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| 349 |
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[577] | 350 |
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[591] | 351 | /** Loads view cells from file. The view cells manager is created with
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| 352 | respect to the loaded view cells.
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[577] | 353 |
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| 354 | @returns the view cells manager if loading was successful, false otherwise
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| 355 | */
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[591] | 356 | static ViewCellsManager *LoadViewCells(const string filename,
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| 357 | ObjectContainer *objects);
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[577] | 358 |
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[579] | 359 | /** Evaluates statistics values on view cells.
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| 360 | */
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[580] | 361 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 362 | float &expectedRenderCost,
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| 363 | float &deviation,
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| 364 | float &variance,
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| 365 | int &totalPvs,
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| 366 | float &avgRenderCost);
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[579] | 367 |
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[580] | 368 |
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| 369 | /** Returns hierarchy of the view cells.
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| 370 | */
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| 371 | ViewCellsTree *GetViewCellsTree();
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| 372 |
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[581] | 373 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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| 374 | vector<MergeCandidate> &candidates) = 0;
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[580] | 375 |
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[610] | 376 | void CollectViewCells(const int n);
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| 377 |
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[660] | 378 | /** Returns true if this (logical) view cell is equal to a spatial node.
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| 379 | */
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[710] | 380 | virtual bool EqualToSpatialNode(ViewCell *viewCell) const;
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[580] | 381 |
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[660] | 382 | /** Sets current view cells set to active, i.e., the sampling is done in this view cell set.
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| 383 | */
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| 384 | void SetViewCellsActive();
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[599] | 385 |
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[660] | 386 | /** Evaluates worth of current view cell hierarchy.
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| 387 | */
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[664] | 388 | void EvalViewCellPartition(Preprocessor *preprocessor);
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[660] | 389 |
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[728] | 390 | /** Sets maximal size of a view cell filter.
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| 391 | */
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| 392 | void SetMaxFilterSize(const int size);
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[697] | 393 |
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[840] | 394 | /** Returns maximal filter size.
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| 395 | */
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| 396 | int GetMaxFilterSize() const;
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[746] | 397 |
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[840] | 398 | /** Deletes interior nodes from the tree which have negative merge cost set (local merge).
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| 399 | */
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| 400 | void DeleteLocalMergeTree(ViewCell *vc) const;
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[713] | 401 |
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[728] | 402 | /** Evaluautes histogram for a given number of view cells.
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| 403 | */
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| 404 | void EvalViewCellHistogram(const string filename, const int nViewCells);
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| 405 |
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[735] | 406 | /** Evaluautes histogram for a given number of view cells.
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| 407 | */
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| 408 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
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| 409 |
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[728] | 410 | /** Evaluates the render cost of a view cell.
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| 411 | */
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| 412 | float EvalRenderCost(Intersectable *obj) const;
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| 413 |
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[840] | 414 | /** Exports bounding boxes of objects to file.
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| 415 | */
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| 416 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
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| 417 |
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| 418 |
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[469] | 419 | protected:
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[480] | 420 |
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[697] | 421 | /** Returns the bounding box of filter width.
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| 422 | */
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| 423 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
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[609] | 424 |
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[697] | 425 | /** Intersects box with the tree and returns the number of intersected boxes.
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| 426 | @returns number of view cells found
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| 427 | */
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[710] | 428 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
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| 429 | ViewCellContainer &viewCells) const;
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[697] | 430 |
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| 431 | virtual void TestFilter(const ObjectContainer &objects) {};
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| 432 |
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[581] | 433 | /**
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| 434 | if the view cells tree was already constructed or not.
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| 435 | */
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| 436 | bool ViewCellsTreeConstructed() const;
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| 437 |
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[574] | 438 | int CastPassSamples(const int samplesPerPass,
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| 439 | const int sampleType,
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| 440 | VssRayContainer &vssRays) const;
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[573] | 441 |
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[482] | 442 | void ParseEnvironment();
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| 443 |
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[508] | 444 | /** Creates unique view cell ids.
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| 445 | */
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| 446 | void CreateUniqueViewCellIds();
|
---|
[547] | 447 |
|
---|
[551] | 448 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 449 | */
|
---|
| 450 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 451 |
|
---|
[480] | 452 | /** Recollects view cells and resets statistics.
|
---|
| 453 | */
|
---|
| 454 | void ResetViewCells();
|
---|
[482] | 455 |
|
---|
[480] | 456 | /** Collects the view cells in the view cell container.
|
---|
| 457 | */
|
---|
| 458 | virtual void CollectViewCells() = 0;
|
---|
[482] | 459 |
|
---|
[479] | 460 | /** Evaluates view cells statistics and stores it in
|
---|
| 461 | mViewCellsStatistics.
|
---|
| 462 | */
|
---|
| 463 | void EvaluateViewCellsStats();
|
---|
[482] | 464 |
|
---|
| 465 | //-- helper functions for view cell visualization
|
---|
| 466 |
|
---|
| 467 | /** Exports the view cell partition.
|
---|
| 468 | */
|
---|
[508] | 469 | void ExportViewCellsForViz(Exporter *exporter) const;
|
---|
[482] | 470 |
|
---|
| 471 | /** Sets exporter color.
|
---|
| 472 | */
|
---|
| 473 | virtual void ExportColor(Exporter *exporter, ViewCell *vc) const = 0;
|
---|
| 474 |
|
---|
[556] | 475 |
|
---|
[557] | 476 | virtual float GetViewSpaceVolume();
|
---|
| 477 |
|
---|
[503] | 478 | /** Creates meshes from the view cells.
|
---|
| 479 | */
|
---|
[517] | 480 | void CreateViewCellMeshes();
|
---|
[503] | 481 |
|
---|
[610] | 482 | /** Takes different measures to prepares the view cells after loading them from disc.
|
---|
[577] | 483 | */
|
---|
| 484 | virtual void PrepareLoadedViewCells() {};
|
---|
| 485 |
|
---|
[704] | 486 | /** Constructs local view cell merge hierarchy.
|
---|
| 487 | */
|
---|
| 488 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 489 | const ViewCellContainer &viewCells);
|
---|
| 490 |
|
---|
[713] | 491 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
| 492 | current viewcell
|
---|
| 493 | */
|
---|
| 494 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 495 | const ViewCellContainer &viewCells);
|
---|
| 496 |
|
---|
| 497 |
|
---|
[660] | 498 | /** Creates clip plane for visualization.
|
---|
| 499 | */
|
---|
| 500 | void CreateClipPlane();
|
---|
[591] | 501 |
|
---|
[752] | 502 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) = 0;
|
---|
| 503 |
|
---|
| 504 |
|
---|
| 505 |
|
---|
[840] | 506 |
|
---|
| 507 |
|
---|
| 508 | /// if bounding boxes should also be exported
|
---|
| 509 | bool mExportBboxesForPvs;
|
---|
| 510 |
|
---|
| 511 |
|
---|
[660] | 512 | Plane3 mClipPlane;
|
---|
[837] | 513 |
|
---|
[660] | 514 | bool mUseClipPlaneForViz;
|
---|
[591] | 515 |
|
---|
| 516 |
|
---|
[480] | 517 | /// Renders the view cells.
|
---|
| 518 | Renderer *mRenderer;
|
---|
[440] | 519 |
|
---|
| 520 | /// Loaded view cells
|
---|
[469] | 521 | ViewCellContainer mViewCells;
|
---|
[440] | 522 |
|
---|
[580] | 523 | ViewCellsTree *mViewCellsTree;
|
---|
| 524 |
|
---|
[710] | 525 | bool mPruneEmptyViewCells;
|
---|
[706] | 526 |
|
---|
[719] | 527 | bool mViewCellPvsIsUpdated;
|
---|
[440] | 528 | /// maximum number of samples taken for construction of the view cells
|
---|
| 529 | int mConstructionSamples;
|
---|
[574] | 530 | int mSamplesPerPass;
|
---|
| 531 | int mInitialSamples;
|
---|
[440] | 532 | int mPostProcessSamples;
|
---|
| 533 | int mVisualizationSamples;
|
---|
[441] | 534 |
|
---|
[470] | 535 | float mTotalAreaValid;
|
---|
| 536 | float mTotalArea;
|
---|
[475] | 537 |
|
---|
[547] | 538 | int mMaxPvsSize;
|
---|
[562] | 539 | int mMinPvsSize;
|
---|
[547] | 540 | float mMaxPvsRatio;
|
---|
| 541 |
|
---|
[660] | 542 | int mSamplingType;
|
---|
[722] | 543 | int mEvaluationSamplingType;
|
---|
[600] | 544 | int mNumActiveViewCells;
|
---|
[586] | 545 | bool mCompressViewCells;
|
---|
| 546 |
|
---|
[660] | 547 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 548 | /// the scene bounding box
|
---|
[542] | 549 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[508] | 550 | /// holds the view cell meshes
|
---|
[503] | 551 | MeshContainer mMeshContainer;
|
---|
[508] | 552 | /// if view cells should be exported
|
---|
| 553 | bool mExportViewCells;
|
---|
[547] | 554 |
|
---|
[591] | 555 | //bool mMarchTree);
|
---|
[564] | 556 | bool mOnlyValidViewCells;
|
---|
[547] | 557 |
|
---|
[580] | 558 | /// if rays should be used to collect merge candidates
|
---|
| 559 | bool mUseRaysForMerge;
|
---|
[697] | 560 | /// merge the view cells?
|
---|
[592] | 561 | bool mMergeViewCells;
|
---|
[697] | 562 |
|
---|
| 563 | /// the width of the box filter
|
---|
| 564 | float mFilterWidth;
|
---|
| 565 | int mMaxFilterSize;
|
---|
| 566 |
|
---|
[487] | 567 | //-- visualization options
|
---|
| 568 |
|
---|
| 569 | /// color code for view cells
|
---|
| 570 | int mColorCode;
|
---|
| 571 | bool mExportGeometry;
|
---|
| 572 | bool mExportRays;
|
---|
[517] | 573 |
|
---|
| 574 | bool mViewCellsFinished;
|
---|
[664] | 575 |
|
---|
| 576 | bool mEvaluateViewCells;
|
---|
[666] | 577 |
|
---|
[693] | 578 | bool mShowVisualization;
|
---|
| 579 |
|
---|
| 580 | // HACK in order to detect empty view cells
|
---|
| 581 | void CollectEmptyViewCells();
|
---|
[694] | 582 | void TestEmptyViewCells(const ObjectContainer &obj);
|
---|
[693] | 583 |
|
---|
| 584 | ViewCellContainer mEmptyViewCells;
|
---|
[728] | 585 |
|
---|
| 586 | int mRenderCostEvaluationType;
|
---|
[844] | 587 |
|
---|
| 588 | /// if pvs should be exported with view cells
|
---|
| 589 | bool mExportPvs;
|
---|
[440] | 590 | };
|
---|
| 591 |
|
---|
[441] | 592 |
|
---|
| 593 |
|
---|
[440] | 594 | /**
|
---|
| 595 | Manages different higher order operations on the view cells.
|
---|
| 596 | */
|
---|
| 597 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 598 | {
|
---|
| 599 |
|
---|
| 600 | public:
|
---|
[485] | 601 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 602 | used to construct the bsp tree.
|
---|
| 603 | */
|
---|
[574] | 604 | BspViewCellsManager(BspTree *tree);
|
---|
[440] | 605 |
|
---|
[477] | 606 | ~BspViewCellsManager();
|
---|
| 607 |
|
---|
[574] | 608 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 609 | const VssRayContainer &rays);
|
---|
[440] | 610 |
|
---|
| 611 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 612 | const VssRayContainer &rays);
|
---|
[440] | 613 |
|
---|
| 614 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 615 | const VssRayContainer &sampleRays);
|
---|
[440] | 616 |
|
---|
| 617 | int GetType() const;
|
---|
| 618 |
|
---|
| 619 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 620 |
|
---|
| 621 | bool ViewCellsConstructed() const;
|
---|
| 622 |
|
---|
[475] | 623 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 624 |
|
---|
[468] | 625 | int CastLineSegment(const Vector3 &origin,
|
---|
| 626 | const Vector3 &termination,
|
---|
| 627 | ViewCellContainer &viewcells);
|
---|
| 628 |
|
---|
[471] | 629 | float GetProbability(ViewCell *viewCell);
|
---|
[605] | 630 |
|
---|
[466] | 631 |
|
---|
[503] | 632 | /** Get a viewcell containing the specified point */
|
---|
[569] | 633 | ViewCell *GetViewCell(const Vector3 &point) const;
|
---|
[492] | 634 |
|
---|
[503] | 635 | void CreateMesh(ViewCell *vc);
|
---|
| 636 |
|
---|
[591] | 637 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 638 | ViewCell *vc,
|
---|
[660] | 639 | const Plane3 *clipPlane = NULL) const;
|
---|
[580] | 640 |
|
---|
[587] | 641 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 642 | vector<MergeCandidate> &candidates);
|
---|
[547] | 643 |
|
---|
[587] | 644 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 645 |
|
---|
[590] | 646 | bool ExportViewCells(const string filename);
|
---|
| 647 |
|
---|
[752] | 648 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 649 | */
|
---|
[650] | 650 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 651 |
|
---|
[752] | 652 | /** Updates the pvs in the view cells tree.
|
---|
| 653 | */
|
---|
| 654 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[610] | 655 |
|
---|
[440] | 656 | protected:
|
---|
| 657 |
|
---|
[610] | 658 |
|
---|
[480] | 659 | void CollectViewCells();
|
---|
| 660 |
|
---|
[482] | 661 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
[547] | 662 |
|
---|
[440] | 663 | /// the BSP tree.
|
---|
| 664 | BspTree *mBspTree;
|
---|
[475] | 665 |
|
---|
| 666 | vector<BspRay *> mBspRays;
|
---|
[440] | 667 |
|
---|
| 668 | private:
|
---|
| 669 |
|
---|
| 670 | /** Exports visualization of the BSP splits.
|
---|
| 671 | */
|
---|
[477] | 672 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 673 |
|
---|
| 674 | /** Exports visualization of the BSP PVS.
|
---|
| 675 | */
|
---|
[477] | 676 | void ExportBspPvs(const ObjectContainer &objects);
|
---|
[440] | 677 |
|
---|
[693] | 678 | void TestSubdivision();
|
---|
[440] | 679 | };
|
---|
| 680 |
|
---|
| 681 | /**
|
---|
| 682 | Manages different higher order operations on the KD type view cells.
|
---|
| 683 | */
|
---|
| 684 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 685 | {
|
---|
| 686 |
|
---|
| 687 | public:
|
---|
| 688 |
|
---|
| 689 | KdViewCellsManager(KdTree *tree);
|
---|
| 690 |
|
---|
[574] | 691 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 692 | const VssRayContainer &rays);
|
---|
[440] | 693 |
|
---|
[478] | 694 | int CastLineSegment(const Vector3 &origin,
|
---|
| 695 | const Vector3 &termination,
|
---|
| 696 | ViewCellContainer &viewcells);
|
---|
[440] | 697 |
|
---|
| 698 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 699 | const VssRayContainer &rays);
|
---|
[440] | 700 |
|
---|
| 701 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 702 | const VssRayContainer &sampleRays);
|
---|
[440] | 703 |
|
---|
| 704 | int GetType() const;
|
---|
| 705 |
|
---|
| 706 | bool ViewCellsConstructed() const;
|
---|
| 707 |
|
---|
[580] | 708 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 709 |
|
---|
[452] | 710 | /** Prints out statistics of this approach.
|
---|
| 711 | */
|
---|
[503] | 712 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[569] | 713 | ViewCell *GetViewCell(const Vector3 &point) const { return NULL; }
|
---|
[452] | 714 |
|
---|
[503] | 715 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 716 |
|
---|
[468] | 717 |
|
---|
[503] | 718 | void CreateMesh(ViewCell *vc);
|
---|
| 719 |
|
---|
[591] | 720 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 721 | ViewCell *vc,
|
---|
[660] | 722 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 723 |
|
---|
[591] | 724 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 725 | vector<MergeCandidate> &candidates);
|
---|
[580] | 726 |
|
---|
[752] | 727 |
|
---|
[440] | 728 | protected:
|
---|
| 729 |
|
---|
[752] | 730 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) {};
|
---|
[580] | 731 | /** Collects view cells from a hierarchy.
|
---|
| 732 | */
|
---|
[480] | 733 | void CollectViewCells();
|
---|
[580] | 734 |
|
---|
[480] | 735 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 736 |
|
---|
[482] | 737 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
[440] | 738 |
|
---|
[547] | 739 |
|
---|
[480] | 740 | /// the BSP tree.
|
---|
| 741 | KdTree *mKdTree;
|
---|
[440] | 742 |
|
---|
[480] | 743 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 744 | int mKdPvsDepth;
|
---|
[440] | 745 | };
|
---|
| 746 |
|
---|
| 747 | /**
|
---|
| 748 | Manages different higher order operations on the view cells
|
---|
| 749 | for vsp kd tree view cells.
|
---|
| 750 | */
|
---|
| 751 | class VspKdViewCellsManager: public ViewCellsManager
|
---|
| 752 | {
|
---|
| 753 |
|
---|
| 754 | public:
|
---|
| 755 |
|
---|
[574] | 756 | VspKdViewCellsManager(VspKdTree *vspKdTree);
|
---|
[440] | 757 |
|
---|
[574] | 758 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 759 | const VssRayContainer &rays);
|
---|
[440] | 760 |
|
---|
| 761 |
|
---|
| 762 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 763 | const VssRayContainer &rays);
|
---|
[440] | 764 |
|
---|
| 765 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 766 | const VssRayContainer &sampleRays);
|
---|
[440] | 767 |
|
---|
| 768 | int GetType() const;
|
---|
| 769 |
|
---|
| 770 | bool ViewCellsConstructed() const;
|
---|
| 771 |
|
---|
[475] | 772 | //virtual void PrintStatistics(ostream &s) const;
|
---|
[440] | 773 |
|
---|
[462] | 774 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
| 775 |
|
---|
[466] | 776 |
|
---|
| 777 | int CastLineSegment(const Vector3 &origin,
|
---|
| 778 | const Vector3 &termination,
|
---|
[468] | 779 | ViewCellContainer &viewcells);
|
---|
[466] | 780 |
|
---|
[569] | 781 | ViewCell *GetViewCell(const Vector3 &point) const { return NULL; }
|
---|
[492] | 782 |
|
---|
[471] | 783 | float GetProbability(ViewCell *viewCell);
|
---|
[468] | 784 |
|
---|
[609] | 785 |
|
---|
[503] | 786 | void CreateMesh(ViewCell *vc);
|
---|
| 787 |
|
---|
[591] | 788 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 789 | ViewCell *vc,
|
---|
[660] | 790 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 791 |
|
---|
[580] | 792 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
---|
| 793 |
|
---|
[752] | 794 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) {};
|
---|
[440] | 795 | protected:
|
---|
| 796 |
|
---|
[482] | 797 | void ExportLeaves(const ObjectContainer &objects,
|
---|
| 798 | const VssRayContainer &sampleRays);
|
---|
| 799 |
|
---|
[480] | 800 | void CollectViewCells();
|
---|
| 801 |
|
---|
[482] | 802 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
| 803 |
|
---|
| 804 |
|
---|
[547] | 805 |
|
---|
[440] | 806 | /// the BSP tree.
|
---|
| 807 | VspKdTree *mVspKdTree;
|
---|
| 808 | };
|
---|
| 809 |
|
---|
| 810 |
|
---|
[442] | 811 |
|
---|
| 812 | /**
|
---|
| 813 | Manages different higher order operations on the view cells.
|
---|
| 814 | */
|
---|
| 815 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 816 | {
|
---|
| 817 |
|
---|
| 818 | public:
|
---|
| 819 |
|
---|
[574] | 820 | VspBspViewCellsManager(VspBspTree *tree);
|
---|
[475] | 821 | ~VspBspViewCellsManager();
|
---|
[442] | 822 |
|
---|
[574] | 823 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 824 | const VssRayContainer &rays);
|
---|
[442] | 825 |
|
---|
| 826 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 827 | const VssRayContainer &rays);
|
---|
[442] | 828 |
|
---|
| 829 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 830 | const VssRayContainer &sampleRays);
|
---|
[442] | 831 |
|
---|
| 832 | int GetType() const;
|
---|
| 833 |
|
---|
| 834 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 835 |
|
---|
| 836 | bool ViewCellsConstructed() const;
|
---|
| 837 |
|
---|
[468] | 838 |
|
---|
| 839 | int CastLineSegment(const Vector3 &origin,
|
---|
| 840 | const Vector3 &termination,
|
---|
| 841 | ViewCellContainer &viewcells);
|
---|
[452] | 842 |
|
---|
[471] | 843 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 844 |
|
---|
[569] | 845 | ViewCell *GetViewCell(const Vector3 &point) const;
|
---|
[477] | 846 |
|
---|
[487] | 847 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 848 |
|
---|
[490] | 849 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 850 |
|
---|
| 851 | void CreateMesh(ViewCell *vc);
|
---|
| 852 |
|
---|
[508] | 853 | bool ExportViewCells(const string filename);
|
---|
| 854 |
|
---|
[532] | 855 | int CastBeam(Beam &beam);
|
---|
| 856 |
|
---|
[591] | 857 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 858 | ViewCell *vc,
|
---|
[660] | 859 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 860 |
|
---|
[551] | 861 | //float GetVolume(ViewCell *viewCell) const;
|
---|
| 862 |
|
---|
[555] | 863 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 864 |
|
---|
[580] | 865 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
---|
| 866 |
|
---|
[697] | 867 | /** Returns true if this view cell is equivavalent to a spatial node.
|
---|
| 868 | */
|
---|
[609] | 869 | bool EqualToSpatialNode(ViewCell *viewCell) const;
|
---|
[607] | 870 |
|
---|
[697] | 871 |
|
---|
[442] | 872 | protected:
|
---|
[475] | 873 |
|
---|
[697] | 874 | int ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const;
|
---|
[651] | 875 |
|
---|
[610] | 876 | /** Returns node of the spatial hierarchy corresponding to the view cell
|
---|
| 877 | if such a node exists.
|
---|
| 878 | */
|
---|
[609] | 879 | BspNode *GetSpatialNode(ViewCell *viewCell) const;
|
---|
[610] | 880 |
|
---|
[503] | 881 | /** Merges the view cells.
|
---|
[442] | 882 | */
|
---|
[508] | 883 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 884 | const ObjectContainer &objects);
|
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[503] | 885 |
|
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[564] | 886 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
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[442] | 887 |
|
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[480] | 888 | void CollectViewCells();
|
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| 889 |
|
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[482] | 890 | /** Returns maximal depth difference of view cell
|
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| 891 | leaves in tree.
|
---|
| 892 | */
|
---|
| 893 | int GetMaxTreeDiff(ViewCell *vc) const;
|
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[485] | 894 |
|
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[482] | 895 |
|
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[485] | 896 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
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| 897 |
|
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[752] | 898 | /** Prepare view cells for use after loading them from disc.
|
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| 899 | */
|
---|
[577] | 900 | void PrepareLoadedViewCells();
|
---|
| 901 |
|
---|
[752] | 902 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 903 | */
|
---|
[650] | 904 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 905 |
|
---|
[752] | 906 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
| 907 |
|
---|
| 908 |
|
---|
| 909 | // HACK
|
---|
[697] | 910 | void TestFilter(const ObjectContainer &objects);
|
---|
| 911 |
|
---|
| 912 |
|
---|
| 913 |
|
---|
[442] | 914 | /// the view space partition BSP tree.
|
---|
| 915 | VspBspTree *mVspBspTree;
|
---|
| 916 |
|
---|
[591] | 917 |
|
---|
[442] | 918 | private:
|
---|
| 919 |
|
---|
| 920 | /** Exports visualization of the BSP splits.
|
---|
| 921 | */
|
---|
[485] | 922 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 923 | const VssRayContainer &rays);
|
---|
[442] | 924 |
|
---|
| 925 | /** Exports visualization of the BSP PVS.
|
---|
| 926 | */
|
---|
[485] | 927 | void ExportBspPvs(const ObjectContainer &objects,
|
---|
| 928 | const VssRayContainer &rays);
|
---|
[442] | 929 |
|
---|
[693] | 930 | void TestSubdivision();
|
---|
[442] | 931 | };
|
---|
| 932 |
|
---|
[575] | 933 |
|
---|
| 934 | class ViewCellsManagerFactory
|
---|
| 935 | {
|
---|
| 936 |
|
---|
| 937 | public:
|
---|
| 938 |
|
---|
| 939 | ViewCellsManager *Create(const string mName);
|
---|
| 940 |
|
---|
| 941 | };
|
---|
| 942 |
|
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[440] | 943 | #endif
|
---|