[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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| 21 | class VspKdTree;
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| 22 | class VspBspTree;
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| 23 | class KdNode;
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| 24 | class KdLeaf;
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| 25 | class VspKdTree;
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| 26 | class AxisAlignedBox3;
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[448] | 27 | class BspLeaf;
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[475] | 28 | class ViewCellsStatistics;
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[482] | 29 | class Exporter;
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[532] | 30 | class Beam;
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[570] | 31 | class Preprocessor;
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[580] | 32 | class ViewCellsTree;
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| 33 | class MergeCandidate;
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[931] | 34 | class BoundingBoxConverter;
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[938] | 35 | class Environment;
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[503] | 36 |
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[475] | 37 | struct BspRay;
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| 38 |
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[677] | 39 |
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| 40 | /** Probably Visible Set */
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[697] | 41 | class PrVs
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| 42 | {
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| 43 | public:
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[704] | 44 | /// root of view cells tree
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| 45 | ViewCell *mViewCell;
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| 46 |
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[880] | 47 | // input parameter is the render budget for the PrVs
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[677] | 48 | float mRenderBudget;
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| 49 |
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| 50 | /// some characteristic values could be here
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| 51 |
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| 52 | };
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| 53 |
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[850] | 54 |
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| 55 | /** Manages different higher order operations on the view cells.
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[440] | 56 | */
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| 57 | class ViewCellsManager
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| 58 | {
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| 59 | public:
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[728] | 60 | struct PvsStatistics
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| 61 | {
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| 62 | int minPvs;
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| 63 | int maxPvs;
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| 64 | float avgPvs;
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| 65 | int viewcells;
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[467] | 66 | };
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[697] | 67 |
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[728] | 68 | /// view cell container types
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| 69 | enum {BSP, KD, VSP_KD, VSP_BSP};
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[466] | 70 |
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[931] | 71 | /// render cost evaluation type
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[728] | 72 | enum {PER_OBJECT, PER_TRIANGLE};
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| 73 |
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[938] | 74 | /** default constructor taking an environment file.
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[440] | 75 | */
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[938] | 76 | ViewCellsManager(Environment *env);
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[440] | 77 |
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[462] | 78 | virtual ~ViewCellsManager();
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[440] | 79 |
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[527] | 80 | /** Constructs view cells container taking a preprocessor
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[570] | 81 | @returns the output rays (if not null)
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| 82 | */
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| 83 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 84 |
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[440] | 85 | /** Constructs view cell container with a given number of samples.
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| 86 | */
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[574] | 87 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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[487] | 88 | const VssRayContainer &rays) = 0;
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[440] | 89 |
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[441] | 90 | /** Computes sample contributions of the rays to the view cells PVS.
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| 91 |
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| 92 | @param rays bundle of rays used to find intersections with view cells and
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| 93 | adding the contribution
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[563] | 94 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 95 | intersect
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| 96 | @param storeViewCells true if view cells should be stored in the ray
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| 97 | */
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[697] | 98 | float ComputeSampleContributions(const VssRayContainer &rays,
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[574] | 99 | const bool addContributions,
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| 100 | const bool storeViewCells);
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[440] | 101 |
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[697] | 102 | /** Add sample contributions to the viewcells they intersect */
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| 103 | void AddSampleContributions(const VssRayContainer &rays);
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[563] | 104 |
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[441] | 105 |
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[475] | 106 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 107 | @param ray finds intersections with view cells and holds the contribution
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| 108 | @param castRay true if ray should be cast to gain the information, false if ray
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| 109 | is already holding the information and need not be recast.
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[466] | 110 |
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[475] | 111 | @returns number of sample contributions
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| 112 | */
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[591] | 113 | virtual float ComputeSampleContributions(VssRay &ray,
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| 114 | const bool addRays,
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| 115 | const bool storeViewCells);
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[563] | 116 |
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[591] | 117 | virtual void AddSampleContributions(VssRay &ray);
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[563] | 118 |
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[452] | 119 | /** Prints out statistics of the view cells.
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| 120 | */
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[475] | 121 | virtual void PrintStatistics(ostream &s) const;
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[452] | 122 |
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[440] | 123 | /** Post processes view cells givemŽa number of rays.
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| 124 | */
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[475] | 125 | virtual int PostProcess(const ObjectContainer &objects,
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| 126 | const VssRayContainer &rays) = 0;
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[440] | 127 |
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| 128 | /** Show visualization of the view cells.
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| 129 | */
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| 130 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 131 | const VssRayContainer &sampleRays) = 0;
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[440] | 132 |
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| 133 | /** type of the view cell container.
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| 134 | */
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| 135 | virtual int GetType() const = 0;
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| 136 |
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[463] | 137 | /** Load the input viewcells. The input viewcells should be given as a collection
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| 138 | of meshes. Each mesh is assume to form a bounded polyhedron defining the interior of
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| 139 | the viewcell. The method then builds a BSP tree of these view cells.
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| 140 |
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| 141 | @param filename file to load
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| 142 | @return true on success
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| 143 | */
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[577] | 144 | virtual bool LoadViewCellsGeometry(const string filename);
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[440] | 145 |
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[577] | 146 |
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[440] | 147 | /** Constructs view cell from base triangle. The ViewCell is extruded along the normal vector.
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| 148 | @param the base triangle
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| 149 | @param the height of the newly created view cell
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| 150 | */
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| 151 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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| 152 |
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| 153 | /** Merges two view cells.
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| 154 | @note the piercing rays of the front and back will be ordered
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| 155 | @returns new view cell based on the merging.
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| 156 | */
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[582] | 157 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 158 |
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| 159 | /** Merges a container of view cells.
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| 160 | @returns new view cell based on the merging.
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| 161 | */
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| 162 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 163 |
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| 164 | /** Generates view cell of type specified by this manager
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| 165 | */
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[580] | 166 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 167 |
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| 168 | /** Adds a new view cell to the list of predefined view cells.
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| 169 | */
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| 170 | void AddViewCell(ViewCell *viewCell);
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| 171 |
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| 172 | /** Derive view cells from objects.
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| 173 | */
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| 174 | void DeriveViewCells(const ObjectContainer &objects,
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| 175 | ViewCellContainer &viewCells,
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| 176 | const int maxViewCells) const;
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| 177 |
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| 178 | /** Sets maximal number of samples used for the
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| 179 | construction of the view cells.
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| 180 | */
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| 181 | void SetVisualizationSamples(const int visSamples);
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| 182 |
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[574] | 183 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 184 | */
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| 185 | void SetConstructionSamples(const int constructionSamples);
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| 186 |
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[574] | 187 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 188 | */
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| 189 | void SetInitialSamples(const int initialSamples);
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| 190 |
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[440] | 191 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 192 | */
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| 193 | void SetPostProcessSamples(const int postProcessingSamples);
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| 194 |
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| 195 | /** See set.
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| 196 | */
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| 197 | int GetVisualizationSamples() const;
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| 198 |
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| 199 | /** See set.
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| 200 | */
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| 201 | int GetConstructionSamples() const;
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| 202 |
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| 203 | /** See set.
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| 204 | */
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| 205 | int GetPostProcessSamples() const;
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| 206 |
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| 207 | /** Returns true if view cells wer already constructed.
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| 208 | */
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| 209 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 210 |
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[477] | 211 | /** cast line segment to get a list of unique viewcells which are intersected
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| 212 | by this line segment
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| 213 | */
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[466] | 214 |
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[477] | 215 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 216 | const Vector3 &termination,
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| 217 | ViewCellContainer &viewcells
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| 218 | ) = 0;
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| 219 |
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[477] | 220 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 221 |
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[904] | 222 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[677] | 223 |
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[697] | 224 | /** Get a viewcell containing the specified point
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[879] | 225 | @param active if the active or elementary view cell should be returned.
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[697] | 226 | */
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[879] | 227 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) 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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[931] | 297 | virtual bool ExportViewCells(const string filename, const bool exportPvs, const ObjectContainer &objects);
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[508] | 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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[860] | 348 | /** Brings the view cells into their final state, computes meshes and volume.
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| 349 | */
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[551] | 350 | virtual void FinalizeViewCells(const bool createMesh);
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| 351 |
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[579] | 352 | /** Evaluates statistics values on view cells.
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| 353 | */
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[580] | 354 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 355 | float &expectedRenderCost,
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| 356 | float &deviation,
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| 357 | float &variance,
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| 358 | int &totalPvs,
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| 359 | float &avgRenderCost);
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[579] | 360 |
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[580] | 361 |
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| 362 | /** Returns hierarchy of the view cells.
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| 363 | */
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| 364 | ViewCellsTree *GetViewCellsTree();
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| 365 |
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[581] | 366 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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| 367 | vector<MergeCandidate> &candidates) = 0;
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[580] | 368 |
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[610] | 369 | void CollectViewCells(const int n);
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| 370 |
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[660] | 371 | /** Returns true if this (logical) view cell is equal to a spatial node.
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| 372 | */
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[710] | 373 | virtual bool EqualToSpatialNode(ViewCell *viewCell) const;
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[580] | 374 |
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[660] | 375 | /** Sets current view cells set to active, i.e., the sampling is done in this view cell set.
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| 376 | */
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| 377 | void SetViewCellsActive();
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[599] | 378 |
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[660] | 379 | /** Evaluates worth of current view cell hierarchy.
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| 380 | */
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[664] | 381 | void EvalViewCellPartition(Preprocessor *preprocessor);
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[660] | 382 |
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[728] | 383 | /** Sets maximal size of a view cell filter.
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| 384 | */
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| 385 | void SetMaxFilterSize(const int size);
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[697] | 386 |
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[840] | 387 | /** Returns maximal filter size.
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| 388 | */
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| 389 | int GetMaxFilterSize() const;
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[746] | 390 |
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[840] | 391 | /** Deletes interior nodes from the tree which have negative merge cost set (local merge).
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| 392 | */
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| 393 | void DeleteLocalMergeTree(ViewCell *vc) const;
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[713] | 394 |
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[728] | 395 | /** Evaluautes histogram for a given number of view cells.
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| 396 | */
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| 397 | void EvalViewCellHistogram(const string filename, const int nViewCells);
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| 398 |
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[735] | 399 | /** Evaluautes histogram for a given number of view cells.
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| 400 | */
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| 401 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
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| 402 |
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[728] | 403 | /** Evaluates the render cost of a view cell.
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| 404 | */
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| 405 | float EvalRenderCost(Intersectable *obj) const;
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| 406 |
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[931] | 407 |
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[884] | 408 |
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[870] | 409 | /** Returns bounding box of a view cell.
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| 410 | */
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| 411 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
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[859] | 412 |
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[840] | 413 | /** Exports bounding boxes of objects to file.
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| 414 | */
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| 415 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
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[931] | 416 |
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[850] | 417 | /** Load the bounding boxes into the container.
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| 418 | */
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| 419 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
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[840] | 420 |
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[931] | 421 | bool GetExportPvs() const
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| 422 | {
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| 423 | return mExportPvs;
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| 424 | }
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[870] | 425 |
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| 426 | /** Loads view cells from file. The view cells manager is created with
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| 427 | respect to the loaded view cells.
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| 428 |
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| 429 | @returns the view cells manager if loading was successful, false otherwise
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| 430 | */
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[938] | 431 | static ViewCellsManager *LoadViewCells(const string &filename,
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[931] | 432 | ObjectContainer *objects,
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[938] | 433 | Environment *env,
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[931] | 434 | BoundingBoxConverter *bconverter = NULL);
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[870] | 435 |
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[904] | 436 |
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[931] | 437 | ////////////////////////////////////////////////////////7
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| 438 | // visiblity filter options
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| 439 | // TODO: write own visibiltiy filter class
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| 440 | void ApplyFilter(KdTree *kdTree,
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| 441 | const float viewSpaceFilterSize,
|
---|
| 442 | const float spatialFilterSize);
|
---|
[904] | 443 |
|
---|
[931] | 444 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 445 | const float spatialFilterSize,
|
---|
| 446 | ObjectPvs &pvs);
|
---|
[480] | 447 |
|
---|
[931] | 448 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 449 | KdTree *kdTree,
|
---|
| 450 | const float viewSpaceFilterSize,
|
---|
| 451 | const float spatialFilterSize,
|
---|
| 452 | ObjectPvs &pvs);
|
---|
| 453 |
|
---|
| 454 | float GetFilterWidth();
|
---|
| 455 |
|
---|
| 456 | float GetAbsFilterWidth();
|
---|
| 457 |
|
---|
| 458 |
|
---|
[697] | 459 | /** Returns the bounding box of filter width.
|
---|
| 460 | */
|
---|
| 461 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 462 |
|
---|
[931] | 463 | protected:
|
---|
| 464 | /** Exports bounding boxes as xml stream
|
---|
| 465 | */
|
---|
| 466 | bool ExportBoundingBoxes(ofstream &xmlstream, const ObjectContainer &objects) const;
|
---|
| 467 |
|
---|
[697] | 468 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
| 469 | @returns number of view cells found
|
---|
| 470 | */
|
---|
[710] | 471 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 472 | ViewCellContainer &viewCells) const;
|
---|
[697] | 473 |
|
---|
[880] | 474 | /** Tests the visibility filter functionality.
|
---|
| 475 | */
|
---|
[697] | 476 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 477 |
|
---|
[931] | 478 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 479 | */
|
---|
| 480 | bool ViewCellsTreeConstructed() const;
|
---|
| 481 |
|
---|
[574] | 482 | int CastPassSamples(const int samplesPerPass,
|
---|
| 483 | const int sampleType,
|
---|
| 484 | VssRayContainer &vssRays) const;
|
---|
[573] | 485 |
|
---|
[931] | 486 | /** Parse the options from the environment file.
|
---|
| 487 | */
|
---|
[482] | 488 | void ParseEnvironment();
|
---|
| 489 |
|
---|
[508] | 490 | /** Creates unique view cell ids.
|
---|
| 491 | */
|
---|
| 492 | void CreateUniqueViewCellIds();
|
---|
[547] | 493 |
|
---|
[551] | 494 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 495 | */
|
---|
| 496 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 497 |
|
---|
[480] | 498 | /** Recollects view cells and resets statistics.
|
---|
| 499 | */
|
---|
| 500 | void ResetViewCells();
|
---|
[482] | 501 |
|
---|
[480] | 502 | /** Collects the view cells in the view cell container.
|
---|
| 503 | */
|
---|
| 504 | virtual void CollectViewCells() = 0;
|
---|
[482] | 505 |
|
---|
[479] | 506 | /** Evaluates view cells statistics and stores it in
|
---|
| 507 | mViewCellsStatistics.
|
---|
| 508 | */
|
---|
| 509 | void EvaluateViewCellsStats();
|
---|
[482] | 510 |
|
---|
| 511 | //-- helper functions for view cell visualization
|
---|
| 512 |
|
---|
| 513 | /** Exports the view cell partition.
|
---|
| 514 | */
|
---|
[508] | 515 | void ExportViewCellsForViz(Exporter *exporter) const;
|
---|
[482] | 516 |
|
---|
| 517 | /** Sets exporter color.
|
---|
| 518 | */
|
---|
| 519 | virtual void ExportColor(Exporter *exporter, ViewCell *vc) const = 0;
|
---|
| 520 |
|
---|
[556] | 521 |
|
---|
[557] | 522 | virtual float GetViewSpaceVolume();
|
---|
| 523 |
|
---|
[503] | 524 | /** Creates meshes from the view cells.
|
---|
| 525 | */
|
---|
[517] | 526 | void CreateViewCellMeshes();
|
---|
[503] | 527 |
|
---|
[610] | 528 | /** Takes different measures to prepares the view cells after loading them from disc.
|
---|
[577] | 529 | */
|
---|
| 530 | virtual void PrepareLoadedViewCells() {};
|
---|
| 531 |
|
---|
[704] | 532 | /** Constructs local view cell merge hierarchy.
|
---|
| 533 | */
|
---|
| 534 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 535 | const ViewCellContainer &viewCells);
|
---|
| 536 |
|
---|
[713] | 537 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
| 538 | current viewcell
|
---|
| 539 | */
|
---|
| 540 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 541 | const ViewCellContainer &viewCells);
|
---|
| 542 |
|
---|
| 543 |
|
---|
[660] | 544 | /** Creates clip plane for visualization.
|
---|
| 545 | */
|
---|
| 546 | void CreateClipPlane();
|
---|
[591] | 547 |
|
---|
[860] | 548 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 549 | */
|
---|
[752] | 550 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) = 0;
|
---|
| 551 |
|
---|
| 552 |
|
---|
| 553 |
|
---|
[840] | 554 | /// if bounding boxes should also be exported
|
---|
| 555 | bool mExportBboxesForPvs;
|
---|
| 556 |
|
---|
[938] | 557 | Environment *environment;
|
---|
[660] | 558 | Plane3 mClipPlane;
|
---|
[837] | 559 |
|
---|
[660] | 560 | bool mUseClipPlaneForViz;
|
---|
[591] | 561 |
|
---|
| 562 |
|
---|
[480] | 563 | /// Renders the view cells.
|
---|
| 564 | Renderer *mRenderer;
|
---|
[440] | 565 |
|
---|
| 566 | /// Loaded view cells
|
---|
[469] | 567 | ViewCellContainer mViewCells;
|
---|
[440] | 568 |
|
---|
[580] | 569 | ViewCellsTree *mViewCellsTree;
|
---|
| 570 |
|
---|
[710] | 571 | bool mPruneEmptyViewCells;
|
---|
[706] | 572 |
|
---|
[719] | 573 | bool mViewCellPvsIsUpdated;
|
---|
[440] | 574 | /// maximum number of samples taken for construction of the view cells
|
---|
| 575 | int mConstructionSamples;
|
---|
[574] | 576 | int mSamplesPerPass;
|
---|
| 577 | int mInitialSamples;
|
---|
[440] | 578 | int mPostProcessSamples;
|
---|
| 579 | int mVisualizationSamples;
|
---|
[441] | 580 |
|
---|
[470] | 581 | float mTotalAreaValid;
|
---|
| 582 | float mTotalArea;
|
---|
[475] | 583 |
|
---|
[547] | 584 | int mMaxPvsSize;
|
---|
[562] | 585 | int mMinPvsSize;
|
---|
[547] | 586 | float mMaxPvsRatio;
|
---|
| 587 |
|
---|
[660] | 588 | int mSamplingType;
|
---|
[722] | 589 | int mEvaluationSamplingType;
|
---|
[600] | 590 | int mNumActiveViewCells;
|
---|
[586] | 591 | bool mCompressViewCells;
|
---|
| 592 |
|
---|
[660] | 593 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 594 | /// the scene bounding box
|
---|
[542] | 595 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[508] | 596 | /// holds the view cell meshes
|
---|
[503] | 597 | MeshContainer mMeshContainer;
|
---|
[508] | 598 | /// if view cells should be exported
|
---|
| 599 | bool mExportViewCells;
|
---|
[547] | 600 |
|
---|
[591] | 601 | //bool mMarchTree);
|
---|
[564] | 602 | bool mOnlyValidViewCells;
|
---|
[547] | 603 |
|
---|
[580] | 604 | /// if rays should be used to collect merge candidates
|
---|
| 605 | bool mUseRaysForMerge;
|
---|
[697] | 606 | /// merge the view cells?
|
---|
[592] | 607 | bool mMergeViewCells;
|
---|
[697] | 608 |
|
---|
| 609 | /// the width of the box filter
|
---|
| 610 | float mFilterWidth;
|
---|
| 611 | int mMaxFilterSize;
|
---|
| 612 |
|
---|
[487] | 613 | //-- visualization options
|
---|
| 614 |
|
---|
| 615 | /// color code for view cells
|
---|
| 616 | int mColorCode;
|
---|
| 617 | bool mExportGeometry;
|
---|
| 618 | bool mExportRays;
|
---|
[517] | 619 |
|
---|
| 620 | bool mViewCellsFinished;
|
---|
[664] | 621 |
|
---|
| 622 | bool mEvaluateViewCells;
|
---|
[666] | 623 |
|
---|
[693] | 624 | bool mShowVisualization;
|
---|
| 625 |
|
---|
| 626 | // HACK in order to detect empty view cells
|
---|
| 627 | void CollectEmptyViewCells();
|
---|
[694] | 628 | void TestEmptyViewCells(const ObjectContainer &obj);
|
---|
[693] | 629 |
|
---|
| 630 | ViewCellContainer mEmptyViewCells;
|
---|
[728] | 631 |
|
---|
| 632 | int mRenderCostEvaluationType;
|
---|
[844] | 633 |
|
---|
| 634 | /// if pvs should be exported with view cells
|
---|
| 635 | bool mExportPvs;
|
---|
[938] | 636 |
|
---|
| 637 | Environment *mEnvironment;
|
---|
[440] | 638 | };
|
---|
| 639 |
|
---|
[441] | 640 |
|
---|
| 641 |
|
---|
[440] | 642 | /**
|
---|
| 643 | Manages different higher order operations on the view cells.
|
---|
| 644 | */
|
---|
| 645 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 646 | {
|
---|
| 647 |
|
---|
| 648 | public:
|
---|
[485] | 649 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 650 | used to construct the bsp tree.
|
---|
| 651 | */
|
---|
[938] | 652 | BspViewCellsManager(BspTree *tree, Environment *env);
|
---|
[440] | 653 |
|
---|
[477] | 654 | ~BspViewCellsManager();
|
---|
| 655 |
|
---|
[574] | 656 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 657 | const VssRayContainer &rays);
|
---|
[440] | 658 |
|
---|
| 659 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 660 | const VssRayContainer &rays);
|
---|
[440] | 661 |
|
---|
| 662 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 663 | const VssRayContainer &sampleRays);
|
---|
[440] | 664 |
|
---|
| 665 | int GetType() const;
|
---|
| 666 |
|
---|
| 667 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 668 |
|
---|
| 669 | bool ViewCellsConstructed() const;
|
---|
| 670 |
|
---|
[475] | 671 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 672 |
|
---|
[468] | 673 | int CastLineSegment(const Vector3 &origin,
|
---|
| 674 | const Vector3 &termination,
|
---|
| 675 | ViewCellContainer &viewcells);
|
---|
| 676 |
|
---|
[471] | 677 | float GetProbability(ViewCell *viewCell);
|
---|
[605] | 678 |
|
---|
[466] | 679 |
|
---|
[879] | 680 | /** Get a viewcell containing the specified point
|
---|
| 681 | */
|
---|
| 682 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 683 |
|
---|
[503] | 684 | void CreateMesh(ViewCell *vc);
|
---|
| 685 |
|
---|
[591] | 686 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 687 | ViewCell *vc,
|
---|
[660] | 688 | const Plane3 *clipPlane = NULL) const;
|
---|
[580] | 689 |
|
---|
[587] | 690 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 691 | vector<MergeCandidate> &candidates);
|
---|
[547] | 692 |
|
---|
[587] | 693 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 694 |
|
---|
[931] | 695 | bool ExportViewCells(const string filename, const bool exportPvs, const ObjectContainer &objects);
|
---|
[590] | 696 |
|
---|
[752] | 697 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 698 | */
|
---|
[650] | 699 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 700 |
|
---|
[752] | 701 | /** Updates the pvs in the view cells tree.
|
---|
| 702 | */
|
---|
| 703 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[610] | 704 |
|
---|
[859] | 705 |
|
---|
[440] | 706 | protected:
|
---|
| 707 |
|
---|
[610] | 708 |
|
---|
[480] | 709 | void CollectViewCells();
|
---|
| 710 |
|
---|
[482] | 711 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
[547] | 712 |
|
---|
[440] | 713 | /// the BSP tree.
|
---|
| 714 | BspTree *mBspTree;
|
---|
[475] | 715 |
|
---|
| 716 | vector<BspRay *> mBspRays;
|
---|
[440] | 717 |
|
---|
| 718 | private:
|
---|
| 719 |
|
---|
| 720 | /** Exports visualization of the BSP splits.
|
---|
| 721 | */
|
---|
[477] | 722 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 723 |
|
---|
| 724 | /** Exports visualization of the BSP PVS.
|
---|
| 725 | */
|
---|
[477] | 726 | void ExportBspPvs(const ObjectContainer &objects);
|
---|
[440] | 727 |
|
---|
[693] | 728 | void TestSubdivision();
|
---|
[440] | 729 | };
|
---|
| 730 |
|
---|
| 731 | /**
|
---|
| 732 | Manages different higher order operations on the KD type view cells.
|
---|
| 733 | */
|
---|
| 734 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 735 | {
|
---|
| 736 |
|
---|
| 737 | public:
|
---|
| 738 |
|
---|
[938] | 739 | KdViewCellsManager(KdTree *tree, Environment *env);
|
---|
[440] | 740 |
|
---|
[574] | 741 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 742 | const VssRayContainer &rays);
|
---|
[440] | 743 |
|
---|
[478] | 744 | int CastLineSegment(const Vector3 &origin,
|
---|
| 745 | const Vector3 &termination,
|
---|
| 746 | ViewCellContainer &viewcells);
|
---|
[440] | 747 |
|
---|
| 748 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 749 | const VssRayContainer &rays);
|
---|
[440] | 750 |
|
---|
| 751 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 752 | const VssRayContainer &sampleRays);
|
---|
[440] | 753 |
|
---|
| 754 | int GetType() const;
|
---|
| 755 |
|
---|
| 756 | bool ViewCellsConstructed() const;
|
---|
| 757 |
|
---|
[580] | 758 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 759 |
|
---|
[452] | 760 | /** Prints out statistics of this approach.
|
---|
| 761 | */
|
---|
[503] | 762 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[879] | 763 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const { return NULL; }
|
---|
[452] | 764 |
|
---|
[503] | 765 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 766 |
|
---|
[468] | 767 |
|
---|
[503] | 768 | void CreateMesh(ViewCell *vc);
|
---|
| 769 |
|
---|
[591] | 770 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 771 | ViewCell *vc,
|
---|
[660] | 772 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 773 |
|
---|
[591] | 774 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 775 | vector<MergeCandidate> &candidates);
|
---|
[580] | 776 |
|
---|
[752] | 777 |
|
---|
[440] | 778 | protected:
|
---|
| 779 |
|
---|
[752] | 780 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) {};
|
---|
[580] | 781 | /** Collects view cells from a hierarchy.
|
---|
| 782 | */
|
---|
[480] | 783 | void CollectViewCells();
|
---|
[580] | 784 |
|
---|
[480] | 785 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 786 |
|
---|
[482] | 787 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
[440] | 788 |
|
---|
[547] | 789 |
|
---|
[480] | 790 | /// the BSP tree.
|
---|
| 791 | KdTree *mKdTree;
|
---|
[440] | 792 |
|
---|
[480] | 793 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 794 | int mKdPvsDepth;
|
---|
[938] | 795 |
|
---|
| 796 |
|
---|
[440] | 797 | };
|
---|
| 798 |
|
---|
| 799 | /**
|
---|
| 800 | Manages different higher order operations on the view cells
|
---|
| 801 | for vsp kd tree view cells.
|
---|
| 802 | */
|
---|
| 803 | class VspKdViewCellsManager: public ViewCellsManager
|
---|
| 804 | {
|
---|
| 805 |
|
---|
| 806 | public:
|
---|
| 807 |
|
---|
[938] | 808 | VspKdViewCellsManager(VspKdTree *vspKdTree, Environment *env);
|
---|
[440] | 809 |
|
---|
[574] | 810 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 811 | const VssRayContainer &rays);
|
---|
[440] | 812 |
|
---|
| 813 |
|
---|
| 814 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 815 | const VssRayContainer &rays);
|
---|
[440] | 816 |
|
---|
| 817 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 818 | const VssRayContainer &sampleRays);
|
---|
[440] | 819 |
|
---|
| 820 | int GetType() const;
|
---|
| 821 |
|
---|
| 822 | bool ViewCellsConstructed() const;
|
---|
| 823 |
|
---|
[475] | 824 | //virtual void PrintStatistics(ostream &s) const;
|
---|
[440] | 825 |
|
---|
[462] | 826 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
| 827 |
|
---|
[466] | 828 |
|
---|
| 829 | int CastLineSegment(const Vector3 &origin,
|
---|
| 830 | const Vector3 &termination,
|
---|
[468] | 831 | ViewCellContainer &viewcells);
|
---|
[466] | 832 |
|
---|
[879] | 833 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const { return NULL; }
|
---|
[492] | 834 |
|
---|
[471] | 835 | float GetProbability(ViewCell *viewCell);
|
---|
[468] | 836 |
|
---|
[609] | 837 |
|
---|
[503] | 838 | void CreateMesh(ViewCell *vc);
|
---|
| 839 |
|
---|
[591] | 840 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 841 | ViewCell *vc,
|
---|
[660] | 842 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 843 |
|
---|
[580] | 844 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
---|
| 845 |
|
---|
[752] | 846 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) {};
|
---|
[440] | 847 | protected:
|
---|
| 848 |
|
---|
[482] | 849 | void ExportLeaves(const ObjectContainer &objects,
|
---|
| 850 | const VssRayContainer &sampleRays);
|
---|
| 851 |
|
---|
[480] | 852 | void CollectViewCells();
|
---|
| 853 |
|
---|
[482] | 854 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
| 855 |
|
---|
| 856 |
|
---|
[547] | 857 |
|
---|
[440] | 858 | /// the BSP tree.
|
---|
| 859 | VspKdTree *mVspKdTree;
|
---|
| 860 | };
|
---|
| 861 |
|
---|
| 862 |
|
---|
[442] | 863 |
|
---|
| 864 | /**
|
---|
| 865 | Manages different higher order operations on the view cells.
|
---|
| 866 | */
|
---|
| 867 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 868 | {
|
---|
| 869 |
|
---|
| 870 | public:
|
---|
| 871 |
|
---|
[938] | 872 | VspBspViewCellsManager(VspBspTree *tree, Environment *env);
|
---|
[475] | 873 | ~VspBspViewCellsManager();
|
---|
[442] | 874 |
|
---|
[574] | 875 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 876 | const VssRayContainer &rays);
|
---|
[442] | 877 |
|
---|
| 878 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 879 | const VssRayContainer &rays);
|
---|
[442] | 880 |
|
---|
| 881 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 882 | const VssRayContainer &sampleRays);
|
---|
[442] | 883 |
|
---|
| 884 | int GetType() const;
|
---|
| 885 |
|
---|
| 886 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 887 |
|
---|
| 888 | bool ViewCellsConstructed() const;
|
---|
| 889 |
|
---|
[468] | 890 |
|
---|
| 891 | int CastLineSegment(const Vector3 &origin,
|
---|
| 892 | const Vector3 &termination,
|
---|
| 893 | ViewCellContainer &viewcells);
|
---|
[452] | 894 |
|
---|
[471] | 895 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 896 |
|
---|
[879] | 897 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 898 |
|
---|
[487] | 899 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 900 |
|
---|
[490] | 901 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 902 |
|
---|
| 903 | void CreateMesh(ViewCell *vc);
|
---|
| 904 |
|
---|
[931] | 905 | bool ExportViewCells(const string filename, const bool exportPvs, const ObjectContainer &objects);
|
---|
[508] | 906 |
|
---|
[532] | 907 | int CastBeam(Beam &beam);
|
---|
| 908 |
|
---|
[591] | 909 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 910 | ViewCell *vc,
|
---|
[660] | 911 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 912 |
|
---|
[551] | 913 | //float GetVolume(ViewCell *viewCell) const;
|
---|
| 914 |
|
---|
[555] | 915 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 916 |
|
---|
[580] | 917 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
---|
| 918 |
|
---|
[697] | 919 | /** Returns true if this view cell is equivavalent to a spatial node.
|
---|
| 920 | */
|
---|
[609] | 921 | bool EqualToSpatialNode(ViewCell *viewCell) const;
|
---|
[607] | 922 |
|
---|
[697] | 923 |
|
---|
[442] | 924 | protected:
|
---|
[475] | 925 |
|
---|
[697] | 926 | int ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const;
|
---|
[651] | 927 |
|
---|
[610] | 928 | /** Returns node of the spatial hierarchy corresponding to the view cell
|
---|
| 929 | if such a node exists.
|
---|
| 930 | */
|
---|
[609] | 931 | BspNode *GetSpatialNode(ViewCell *viewCell) const;
|
---|
[610] | 932 |
|
---|
[503] | 933 | /** Merges the view cells.
|
---|
[442] | 934 | */
|
---|
[508] | 935 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 936 | const ObjectContainer &objects);
|
---|
[503] | 937 |
|
---|
[564] | 938 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 939 |
|
---|
[480] | 940 | void CollectViewCells();
|
---|
| 941 |
|
---|
[482] | 942 | /** Returns maximal depth difference of view cell
|
---|
| 943 | leaves in tree.
|
---|
| 944 | */
|
---|
| 945 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
[485] | 946 |
|
---|
[482] | 947 |
|
---|
[485] | 948 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
| 949 |
|
---|
[752] | 950 | /** Prepare view cells for use after loading them from disc.
|
---|
| 951 | */
|
---|
[577] | 952 | void PrepareLoadedViewCells();
|
---|
| 953 |
|
---|
[752] | 954 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 955 | */
|
---|
[650] | 956 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 957 |
|
---|
[752] | 958 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
| 959 |
|
---|
| 960 |
|
---|
| 961 | // HACK
|
---|
[697] | 962 | void TestFilter(const ObjectContainer &objects);
|
---|
| 963 |
|
---|
| 964 |
|
---|
| 965 |
|
---|
[442] | 966 | /// the view space partition BSP tree.
|
---|
| 967 | VspBspTree *mVspBspTree;
|
---|
| 968 |
|
---|
[591] | 969 |
|
---|
[442] | 970 | private:
|
---|
| 971 |
|
---|
| 972 | /** Exports visualization of the BSP splits.
|
---|
| 973 | */
|
---|
[485] | 974 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 975 | const VssRayContainer &rays);
|
---|
[442] | 976 |
|
---|
| 977 | /** Exports visualization of the BSP PVS.
|
---|
| 978 | */
|
---|
[485] | 979 | void ExportBspPvs(const ObjectContainer &objects,
|
---|
| 980 | const VssRayContainer &rays);
|
---|
[442] | 981 |
|
---|
[693] | 982 | void TestSubdivision();
|
---|
[442] | 983 | };
|
---|
| 984 |
|
---|
[575] | 985 |
|
---|
| 986 | class ViewCellsManagerFactory
|
---|
| 987 | {
|
---|
| 988 |
|
---|
| 989 | public:
|
---|
| 990 |
|
---|
| 991 | ViewCellsManager *Create(const string mName);
|
---|
| 992 |
|
---|
| 993 | };
|
---|
| 994 |
|
---|
[860] | 995 | }
|
---|
| 996 |
|
---|
[440] | 997 | #endif
|
---|