[440] | 1 | #ifndef _ViewCellsManager_H__
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| 2 | #define _ViewCellsManager_H__
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| 3 |
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| 4 | #include "Ray.h"
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| 5 | #include "VssRay.h"
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| 6 | #include "Containers.h"
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[475] | 7 | #include "ViewCell.h"
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[610] | 8 | #include "ViewCellBsp.h"
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[440] | 9 |
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[860] | 10 | namespace GtpVisibilityPreprocessor {
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| 11 |
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[440] | 12 | class ViewCell;
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| 13 | class Intersectable;
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| 14 | class RenderSimulator;
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[480] | 15 | class Renderer;
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[440] | 16 | class Mesh;
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| 17 | struct Triangle3;
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| 18 | class SimulationStatistics;
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| 19 | class BspTree;
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| 20 | class KdTree;
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[1006] | 21 | class VspOspTree;
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[440] | 22 | class VspBspTree;
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| 23 | class KdNode;
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| 24 | class KdLeaf;
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| 25 | class AxisAlignedBox3;
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[448] | 26 | class BspLeaf;
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[475] | 27 | class ViewCellsStatistics;
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[482] | 28 | class Exporter;
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[532] | 29 | class Beam;
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[570] | 30 | class Preprocessor;
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[580] | 31 | class ViewCellsTree;
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| 32 | class MergeCandidate;
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[931] | 33 | class BoundingBoxConverter;
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[1021] | 34 | class VspTree;
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| 35 | class OspTree;
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| 36 | class VspNode;
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[1027] | 37 | class HierarchyManager;
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[1259] | 38 | class BvHierarchy;
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[1264] | 39 | class ViewCellsTree;
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[1259] | 40 |
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[1047] | 41 | struct AxisAlignedPlane;
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[475] | 42 | struct BspRay;
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| 43 |
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[677] | 44 |
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[1145] | 45 | /** Probably Visible Set
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| 46 | */
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[697] | 47 | class PrVs
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| 48 | {
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| 49 | public:
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[704] | 50 | /// root of view cells tree
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| 51 | ViewCell *mViewCell;
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| 52 |
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[880] | 53 | // input parameter is the render budget for the PrVs
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[677] | 54 | float mRenderBudget;
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| 55 |
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[1557] | 56 | // some characteristic values could be stored as well
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[677] | 57 | };
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| 58 |
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[850] | 59 | /** Manages different higher order operations on the view cells.
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[440] | 60 | */
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| 61 | class ViewCellsManager
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| 62 | {
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| 63 | public:
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[728] | 64 | struct PvsStatistics
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| 65 | {
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| 66 | int minPvs;
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| 67 | int maxPvs;
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| 68 | float avgPvs;
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| 69 | int viewcells;
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[1545] | 70 | };
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[697] | 71 |
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[728] | 72 | /// view cell container types
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[1021] | 73 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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[466] | 74 |
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[931] | 75 | /// render cost evaluation type
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[728] | 76 | enum {PER_OBJECT, PER_TRIANGLE};
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| 77 |
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[1545] | 78 | friend class X3dViewCellsParseHandlers;
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[1004] | 79 | /** Default constructor.
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[440] | 80 | */
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[1264] | 81 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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[440] | 82 |
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[462] | 83 | virtual ~ViewCellsManager();
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[440] | 84 |
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[527] | 85 | /** Constructs view cells container taking a preprocessor
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[570] | 86 | @returns the output rays (if not null)
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| 87 | */
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| 88 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 89 |
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[440] | 90 | /** Constructs view cell container with a given number of samples.
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| 91 | */
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[1264] | 92 | virtual int ConstructSubdivision(
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| 93 | const ObjectContainer &objects,
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| 94 | const VssRayContainer &rays) = 0;
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[440] | 95 |
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[441] | 96 | /** Computes sample contributions of the rays to the view cells PVS.
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| 97 |
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| 98 | @param rays bundle of rays used to find intersections with view cells and
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| 99 | adding the contribution
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[563] | 100 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 101 | intersect
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| 102 | @param storeViewCells true if view cells should be stored in the ray
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| 103 | */
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[697] | 104 | float ComputeSampleContributions(const VssRayContainer &rays,
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[1155] | 105 | const bool addContributions,
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| 106 | const bool storeViewCells);
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[440] | 107 |
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[1155] | 108 | /** Add sample contributions to the viewcells they intersect
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| 109 | */
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[697] | 110 | void AddSampleContributions(const VssRayContainer &rays);
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[563] | 111 |
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[441] | 112 |
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[475] | 113 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 114 | @param ray finds intersections with view cells and holds the contribution
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[1570] | 115 | @param addSample if sample should be added to the pvs
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| 116 |
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[475] | 117 | @returns number of sample contributions
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| 118 | */
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[1159] | 119 | virtual float ComputeSampleContribution(VssRay &ray,
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| 120 | const bool addRays,
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| 121 | const bool storeViewCells);
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[563] | 122 |
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[591] | 123 | virtual void AddSampleContributions(VssRay &ray);
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[563] | 124 |
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[452] | 125 | /** Prints out statistics of the view cells.
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| 126 | */
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[475] | 127 | virtual void PrintStatistics(ostream &s) const;
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[452] | 128 |
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[440] | 129 | /** Post processes view cells givemŽa number of rays.
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| 130 | */
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[475] | 131 | virtual int PostProcess(const ObjectContainer &objects,
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| 132 | const VssRayContainer &rays) = 0;
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[440] | 133 |
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| 134 | /** Show visualization of the view cells.
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| 135 | */
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| 136 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 137 | const VssRayContainer &sampleRays) = 0;
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[440] | 138 |
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| 139 | /** type of the view cell container.
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| 140 | */
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| 141 | virtual int GetType() const = 0;
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| 142 |
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[463] | 143 | /** Load the input viewcells. The input viewcells should be given as a collection
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[1545] | 144 | of meshes. Each mesh is assume to form a bounded polyhedron
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| 145 | defining the interior of the viewcell. The view cells manager
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| 146 | is responsible for building a hierarchy over these view cells.
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[463] | 147 |
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| 148 | @param filename file to load
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| 149 | @return true on success
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| 150 | */
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[1545] | 151 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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[577] | 152 |
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[440] | 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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[1545] | 164 | /** Generates view cell of the type specified by this manager
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[440] | 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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[1545] | 168 | /** Constructs view cell from base triangle.
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| 169 | The view cell is extruded along the normal vector.
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| 170 | @param the base triangle
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| 171 | @param the height of the newly created view cell
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[440] | 172 | */
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[1545] | 173 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[440] | 174 |
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| 175 | /** Sets maximal number of samples used for the
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| 176 | construction of the view cells.
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| 177 | */
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| 178 | void SetVisualizationSamples(const int visSamples);
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| 179 |
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[574] | 180 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 181 | */
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| 182 | void SetConstructionSamples(const int constructionSamples);
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| 183 |
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[574] | 184 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 185 | */
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| 186 | void SetInitialSamples(const int initialSamples);
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| 187 |
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[440] | 188 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 189 | */
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| 190 | void SetPostProcessSamples(const int postProcessingSamples);
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| 191 |
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| 192 | /** See set.
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| 193 | */
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| 194 | int GetVisualizationSamples() const;
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| 195 |
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| 196 | /** See set.
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| 197 | */
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| 198 | int GetConstructionSamples() const;
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| 199 |
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| 200 | /** See set.
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| 201 | */
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| 202 | int GetPostProcessSamples() const;
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| 203 |
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[1002] | 204 | /** Returns true if view cells are already constructed.
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[440] | 205 | */
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| 206 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 207 |
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[477] | 208 | /** cast line segment to get a list of unique viewcells which are intersected
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| 209 | by this line segment
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| 210 | */
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[466] | 211 |
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[477] | 212 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 213 | const Vector3 &termination,
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| 214 | ViewCellContainer &viewcells
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| 215 | ) = 0;
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| 216 |
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[1294] | 217 | /** Returns a stats about the global pvs.
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| 218 | */
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[477] | 219 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 220 |
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[904] | 221 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[677] | 222 |
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[697] | 223 | /** Get a viewcell containing the specified point
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[879] | 224 | @param active if the active or elementary view cell should be returned.
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[697] | 225 | */
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[879] | 226 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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[492] | 227 |
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[503] | 228 | virtual void PrintPvsStatistics(ostream &s);
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[467] | 229 |
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[719] | 230 | /** Updates pvs of the view cell hierarchy if necessary.
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| 231 | */
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| 232 | void UpdatePvs();
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| 233 |
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[477] | 234 | /** Returns probability that view point lies in one view cell.
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| 235 | */
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| 236 | virtual float GetProbability(ViewCell *viewCell) = 0;
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[468] | 237 |
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[477] | 238 | /** Returns render cost of a single view cell given the render cost of an object.
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| 239 | */
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[728] | 240 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 241 |
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[720] | 242 | /** Returns reference to container of loaded / generated view cells.
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[477] | 243 | */
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| 244 | ViewCellContainer &GetViewCells();
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[468] | 245 |
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[485] | 246 | /** Helper function used to split ray sets uniformly
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| 247 | into one that is currently used and the other that
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| 248 | is saved for later processing.
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| 249 | @param sourceRays the input ray set
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| 250 | @param maxSize the maximal number of rays that will be used
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| 251 | @param usedRays returns the used ray set
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| 252 | @param savedRays if not null, returns the saved ray set
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[477] | 253 | */
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| 254 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 255 | const int maxSize,
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| 256 | VssRayContainer &usedRays,
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| 257 | VssRayContainer *savedRays = NULL) const;
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| 258 |
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[480] | 259 | /** Returns accumulated area of all view cells.
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| 260 | */
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| 261 | float GetAccVcArea();
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[470] | 262 |
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[480] | 263 | /** Returns area of one view cell.
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| 264 | */
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| 265 | virtual float GetArea(ViewCell *viewCell) const;
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[470] | 266 |
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[551] | 267 | /** Returns volume of view cell.
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[480] | 268 | */
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| 269 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 270 |
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[480] | 271 | /** Sets the current renderer mainly for view cells statistics.
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| 272 | */
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| 273 | void SetRenderer(Renderer *renderer);
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| 274 |
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[487] | 275 | /** Computes a (random) view point in the valid view space.
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| 276 | @returns true if valid view point was found
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| 277 | */
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| 278 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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| 279 |
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[490] | 280 | /** Returns true if this view point is in the valid view space.
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| 281 | */
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| 282 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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| 283 |
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[487] | 284 | /** Sets a view space boundary.
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| 285 | */
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| 286 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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| 287 |
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[519] | 288 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 289 |
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[503] | 290 | /** Creates mesh for this view cell.
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| 291 | */
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| 292 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[487] | 293 |
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[508] | 294 | /** Writes view cells to disc.
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| 295 | */
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[1027] | 296 | virtual bool ExportViewCells(const string filename,
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| 297 | const bool exportPvs,
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| 298 | const ObjectContainer &objects);
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[508] | 299 |
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[532] | 300 | /** Casts beam to collect view cells.
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| 301 | */
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| 302 | virtual int CastBeam(Beam &beam);
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| 303 |
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[547] | 304 | /** Checks if view cell is considered as valid.
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| 305 | */
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[561] | 306 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 307 | int minPvsSize,
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| 308 | int maxPvsSize) const;
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[547] | 309 |
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[562] | 310 |
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| 311 | /** Sets validity of view cell
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| 312 | */
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| 313 | virtual void SetValidity(ViewCell *vc,
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| 314 | int minPvsSize,
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| 315 | int maxPvsSize) const;
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| 316 |
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[710] | 317 | /** sets validy of all viewcells
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| 318 | */
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[810] | 319 | virtual void SetValidity(int minPvsSize,
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[569] | 320 | int maxPvsSize) const;
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| 321 |
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[609] | 322 |
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| 323 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 324 | according to the pvs and then pickups those in the ranges
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| 325 | */
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| 326 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 327 |
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[1545] | 328 | /** Returns number of valid view cells.
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| 329 | */
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[609] | 330 | int CountValidViewcells() const;
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| 331 |
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[547] | 332 | /** Returns maximal allowed pvs size.
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| 333 | */
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| 334 | int GetMaxPvsSize() const;
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| 335 |
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[562] | 336 | /** Returns maximal allowed pvs size.
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| 337 | */
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| 338 | int GetMinPvsSize() const;
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[561] | 339 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 340 | where pvs is still considered valid.
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| 341 | */
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| 342 | float GetMaxPvsRatio() const;
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[547] | 343 | /** Exports view cell geometry.
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| 344 | */
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[1416] | 345 | virtual void ExportViewCellGeometry(
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| 346 | Exporter *exporter,
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| 347 | ViewCell *vc,
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| 348 | const AxisAlignedBox3 *box,
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| 349 | const AxisAlignedPlane *clipPlane = NULL
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| 350 | ) const = 0;
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[547] | 351 |
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[860] | 352 | /** Brings the view cells into their final state, computes meshes and volume.
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| 353 | */
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[551] | 354 | virtual void FinalizeViewCells(const bool createMesh);
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| 355 |
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[579] | 356 | /** Evaluates statistics values on view cells.
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| 357 | */
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[580] | 358 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 359 | float &expectedRenderCost,
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| 360 | float &deviation,
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| 361 | float &variance,
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| 362 | int &totalPvs,
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| 363 | float &avgRenderCost);
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[579] | 364 |
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[580] | 365 |
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| 366 | /** Returns hierarchy of the view cells.
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| 367 | */
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| 368 | ViewCellsTree *GetViewCellsTree();
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| 369 |
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[1545] | 370 | /** Collect candidates for the view cell merge.
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| 371 | */
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[581] | 372 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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[1022] | 373 | vector<MergeCandidate> &candidates);
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[580] | 374 |
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[1294] | 375 | /** Collects n view cells and stores it as the active view cells.
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| 376 | */
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[610] | 377 | void CollectViewCells(const int n);
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| 378 |
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[660] | 379 | /** Sets current view cells set to active, i.e., the sampling is done in this view cell set.
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| 380 | */
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| 381 | void SetViewCellsActive();
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[599] | 382 |
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[1145] | 383 | /** Evaluates render cost statistics of current view cell hierarchy.
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[660] | 384 | */
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[1178] | 385 | virtual void EvalViewCellPartition();
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[660] | 386 |
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[728] | 387 | /** Sets maximal size of a view cell filter.
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| 388 | */
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| 389 | void SetMaxFilterSize(const int size);
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[697] | 390 |
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[840] | 391 | /** Returns maximal filter size.
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| 392 | */
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| 393 | int GetMaxFilterSize() const;
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[746] | 394 |
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[840] | 395 | /** Deletes interior nodes from the tree which have negative merge cost set (local merge).
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| 396 | */
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| 397 | void DeleteLocalMergeTree(ViewCell *vc) const;
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[713] | 398 |
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[728] | 399 | /** Evaluautes histogram for a given number of view cells.
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| 400 | */
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| 401 | void EvalViewCellHistogram(const string filename, const int nViewCells);
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| 402 |
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[735] | 403 | /** Evaluautes histogram for a given number of view cells.
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| 404 | */
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| 405 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
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| 406 |
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[728] | 407 | /** Evaluates the render cost of a view cell.
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| 408 | */
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| 409 | float EvalRenderCost(Intersectable *obj) const;
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[1002] | 410 |
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| 411 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
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| 412 | of the hierarchy.
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| 413 | */
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[1160] | 414 | void UpdateScalarPvsSize(ViewCell *vc, const int pvsSize, const int entriesInPvs) const;
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[728] | 415 |
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[870] | 416 | /** Returns bounding box of a view cell.
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| 417 | */
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| 418 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
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[859] | 419 |
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[840] | 420 | /** Exports bounding boxes of objects to file.
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| 421 | */
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| 422 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
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[931] | 423 |
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[850] | 424 | /** Load the bounding boxes into the container.
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| 425 | */
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| 426 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
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[840] | 427 |
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[1002] | 428 | /** Returns true if pvs should be exported together with the view cells.
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| 429 | */
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| 430 | bool GetExportPvs() const;
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[870] | 431 |
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[1582] | 432 | /////////////////////////////
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| 433 | // static members
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| 434 |
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| 435 | /** Loads view cells from file. The view cells manager is created with
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| 436 | respect to the loaded view cells.
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[870] | 437 |
|
---|
[1582] | 438 | @param filename the filename of the view cells
|
---|
| 439 | @param objects the scene objects
|
---|
| 440 | @param finalizeViewCells if the view cells should be post processed, i.e.
|
---|
| 441 | a mesh is created representing the geometry
|
---|
| 442 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
| 443 | boxes: if there is a certain similarity of overlap between bounding boxes, two tested
|
---|
| 444 | candidate objects are considered to be the same objects
|
---|
| 445 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 446 | */
|
---|
| 447 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 448 | ObjectContainer *objects,
|
---|
| 449 | const bool finalizeViewCells,
|
---|
| 450 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 451 |
|
---|
[904] | 452 |
|
---|
[931] | 453 | ////////////////////////////////////////////////////////7
|
---|
| 454 | // visiblity filter options
|
---|
[1294] | 455 |
|
---|
[931] | 456 | // TODO: write own visibiltiy filter class
|
---|
| 457 | void ApplyFilter(KdTree *kdTree,
|
---|
| 458 | const float viewSpaceFilterSize,
|
---|
| 459 | const float spatialFilterSize);
|
---|
[904] | 460 |
|
---|
[931] | 461 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 462 | const float spatialFilterSize,
|
---|
| 463 | ObjectPvs &pvs);
|
---|
[480] | 464 |
|
---|
[931] | 465 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 466 | KdTree *kdTree,
|
---|
| 467 | const float viewSpaceFilterSize,
|
---|
| 468 | const float spatialFilterSize,
|
---|
| 469 | ObjectPvs &pvs);
|
---|
| 470 |
|
---|
| 471 | float GetFilterWidth();
|
---|
| 472 |
|
---|
| 473 | float GetAbsFilterWidth();
|
---|
| 474 |
|
---|
[697] | 475 | /** Returns the bounding box of filter width.
|
---|
| 476 | */
|
---|
| 477 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 478 |
|
---|
[1294] | 479 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 480 |
|
---|
[1155] | 481 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
| 482 | */
|
---|
| 483 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
| 484 |
|
---|
| 485 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
| 486 | **/
|
---|
| 487 | bool GetStoreKdPVs() const;
|
---|
| 488 |
|
---|
[1570] | 489 | /** Adds a sample to the pvs of the specified view cell.
|
---|
| 490 | @param obj the hit object
|
---|
| 491 | @param hitPoint the point where the object is hit.
|
---|
| 492 | @param vc the sanpled view cell
|
---|
| 493 | @param pdf probability of the ray
|
---|
| 494 | @param contribution the relative pvs contribution
|
---|
| 495 | @returns true if the sample gives a contribution to the pvs.
|
---|
| 496 | */
|
---|
[1259] | 497 | virtual bool AddSampleToPvs(
|
---|
| 498 | Intersectable *obj,
|
---|
| 499 | const Vector3 &hitPoint,
|
---|
| 500 | ViewCell *vc,
|
---|
| 501 | const float pdf,
|
---|
| 502 | float &contribution) const;
|
---|
| 503 |
|
---|
[1570] | 504 | /** Exports single view cells for visualization.
|
---|
| 505 | @param objects the scene objects
|
---|
| 506 | @param limit the maximal number of output view cells
|
---|
| 507 | @param sortViewCells if the view cells should be sorted by pvs size
|
---|
| 508 | @param exportPvs if the pvs should also be exported
|
---|
| 509 | @param exportRays if sample rays should be exported as well
|
---|
[1580] | 510 | @param maxRays maximum number of rays to export
|
---|
| 511 | @param prefix the prefix for the output file
|
---|
[1570] | 512 | @param visRays additional rays
|
---|
| 513 | */
|
---|
| 514 | virtual
|
---|
| 515 | void ExportSingleViewCells(
|
---|
| 516 | const ObjectContainer &objects,
|
---|
| 517 | const int maxViewCells,
|
---|
| 518 | const bool sortViewCells,
|
---|
| 519 | const bool exportPvs,
|
---|
| 520 | const bool exportRays,
|
---|
| 521 | const int maxRays,
|
---|
| 522 | const string prefix,
|
---|
| 523 | VssRayContainer *visRays = NULL) = NULL;
|
---|
| 524 |
|
---|
[1580] | 525 |
|
---|
| 526 | void ViewCellsManager::ResetPvs();
|
---|
[1582] | 527 |
|
---|
| 528 | Preprocessor *GetPreprocessor() const {
|
---|
| 529 | return mPreprocessor;
|
---|
| 530 | }
|
---|
[1580] | 531 |
|
---|
[1582] | 532 | void SetPreprocessor(Preprocessor *p) {
|
---|
| 533 | mPreprocessor = p;
|
---|
| 534 | }
|
---|
[1580] | 535 |
|
---|
[1608] | 536 | void UpdatePvsForEvaluation();
|
---|
| 537 |
|
---|
[931] | 538 | protected:
|
---|
[1145] | 539 |
|
---|
[697] | 540 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
| 541 | @returns number of view cells found
|
---|
| 542 | */
|
---|
[710] | 543 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 544 | ViewCellContainer &viewCells) const;
|
---|
[697] | 545 |
|
---|
[880] | 546 | /** Tests the visibility filter functionality.
|
---|
| 547 | */
|
---|
[697] | 548 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 549 |
|
---|
[931] | 550 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 551 | */
|
---|
| 552 | bool ViewCellsTreeConstructed() const;
|
---|
| 553 |
|
---|
[1294] | 554 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 555 | */
|
---|
[574] | 556 | int CastPassSamples(const int samplesPerPass,
|
---|
| 557 | const int sampleType,
|
---|
| 558 | VssRayContainer &vssRays) const;
|
---|
[573] | 559 |
|
---|
[931] | 560 | /** Parse the options from the environment file.
|
---|
| 561 | */
|
---|
[482] | 562 | void ParseEnvironment();
|
---|
| 563 |
|
---|
[508] | 564 | /** Creates unique view cell ids.
|
---|
| 565 | */
|
---|
| 566 | void CreateUniqueViewCellIds();
|
---|
[547] | 567 |
|
---|
[551] | 568 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 569 | */
|
---|
| 570 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 571 |
|
---|
[480] | 572 | /** Recollects view cells and resets statistics.
|
---|
| 573 | */
|
---|
| 574 | void ResetViewCells();
|
---|
[482] | 575 |
|
---|
[480] | 576 | /** Collects the view cells in the view cell container.
|
---|
| 577 | */
|
---|
| 578 | virtual void CollectViewCells() = 0;
|
---|
[482] | 579 |
|
---|
[479] | 580 | /** Evaluates view cells statistics and stores it in
|
---|
| 581 | mViewCellsStatistics.
|
---|
| 582 | */
|
---|
| 583 | void EvaluateViewCellsStats();
|
---|
[482] | 584 |
|
---|
[1580] | 585 |
|
---|
[1416] | 586 | ///////////////////////
|
---|
[482] | 587 | //-- helper functions for view cell visualization
|
---|
| 588 |
|
---|
| 589 | /** Exports the view cell partition.
|
---|
| 590 | */
|
---|
[1416] | 591 | void ExportViewCellsForViz(
|
---|
| 592 | Exporter *exporter,
|
---|
| 593 | const AxisAlignedBox3 *box,
|
---|
[1571] | 594 | const AxisAlignedPlane *clipPlane = NULL,
|
---|
| 595 | const bool colorCode = 0) const;
|
---|
[482] | 596 |
|
---|
| 597 | /** Sets exporter color.
|
---|
| 598 | */
|
---|
[1571] | 599 | virtual void ExportColor(Exporter *exporter, ViewCell *vc, const bool colorCode) const;
|
---|
[1545] | 600 |
|
---|
[1416] | 601 | /** Creates meshes from the view cells.
|
---|
| 602 | */
|
---|
| 603 | void CreateViewCellMeshes();
|
---|
[1545] | 604 |
|
---|
| 605 | /** Creates clip plane for visualization.
|
---|
[1416] | 606 | */
|
---|
| 607 | void CreateClipPlane();
|
---|
[482] | 608 |
|
---|
[1416] | 609 | AxisAlignedPlane *GetClipPlane();
|
---|
[1545] | 610 |
|
---|
[1551] | 611 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 612 |
|
---|
[1416] | 613 | ///////////////////////
|
---|
| 614 |
|
---|
[1002] | 615 | /** Returns volume of the view space.
|
---|
| 616 | */
|
---|
[557] | 617 | virtual float GetViewSpaceVolume();
|
---|
[1416] | 618 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 619 | */
|
---|
[577] | 620 | virtual void PrepareLoadedViewCells() {};
|
---|
[704] | 621 | /** Constructs local view cell merge hierarchy.
|
---|
| 622 | */
|
---|
| 623 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 624 | const ViewCellContainer &viewCells);
|
---|
| 625 |
|
---|
[713] | 626 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
| 627 | current viewcell
|
---|
| 628 | */
|
---|
| 629 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 630 | const ViewCellContainer &viewCells);
|
---|
| 631 |
|
---|
[860] | 632 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 633 | */
|
---|
[1168] | 634 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[752] | 635 |
|
---|
[1582] | 636 |
|
---|
| 637 |
|
---|
[979] | 638 | ////////////////////////////////////////////////
|
---|
[752] | 639 |
|
---|
[1145] | 640 | Preprocessor *mPreprocessor;
|
---|
| 641 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 642 | bool mExportBboxesForPvs;
|
---|
[1416] | 643 | /// the clip plane for visualization
|
---|
| 644 | AxisAlignedPlane mClipPlaneForViz;
|
---|
| 645 | /// if the visualization is using the clip plane
|
---|
[660] | 646 | bool mUseClipPlaneForViz;
|
---|
[480] | 647 | /// Renders the view cells.
|
---|
| 648 | Renderer *mRenderer;
|
---|
[440] | 649 | /// Loaded view cells
|
---|
[469] | 650 | ViewCellContainer mViewCells;
|
---|
[1416] | 651 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 652 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 653 |
|
---|
[1416] | 654 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
| 655 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
| 656 | pvs size is stored in interiors and not the pvs itself.
|
---|
| 657 | */
|
---|
[719] | 658 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 659 |
|
---|
[1416] | 660 | /// maximum number of samples for the view cell construction
|
---|
[440] | 661 | int mConstructionSamples;
|
---|
[574] | 662 | int mSamplesPerPass;
|
---|
| 663 | int mInitialSamples;
|
---|
[440] | 664 | int mPostProcessSamples;
|
---|
| 665 | int mVisualizationSamples;
|
---|
[441] | 666 |
|
---|
[470] | 667 | float mTotalAreaValid;
|
---|
| 668 | float mTotalArea;
|
---|
[475] | 669 |
|
---|
[547] | 670 | int mMaxPvsSize;
|
---|
[562] | 671 | int mMinPvsSize;
|
---|
[547] | 672 | float mMaxPvsRatio;
|
---|
| 673 |
|
---|
[660] | 674 | int mSamplingType;
|
---|
[722] | 675 | int mEvaluationSamplingType;
|
---|
[600] | 676 | int mNumActiveViewCells;
|
---|
[586] | 677 | bool mCompressViewCells;
|
---|
| 678 |
|
---|
[1002] | 679 | /// holds the current view cell statistics
|
---|
[660] | 680 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 681 | /// the scene bounding box
|
---|
[542] | 682 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 683 |
|
---|
[508] | 684 | /// if view cells should be exported
|
---|
| 685 | bool mExportViewCells;
|
---|
[547] | 686 |
|
---|
[1002] | 687 | // if only valid view cells should be considered for processing
|
---|
[564] | 688 | bool mOnlyValidViewCells;
|
---|
[547] | 689 |
|
---|
[580] | 690 | /// if rays should be used to collect merge candidates
|
---|
| 691 | bool mUseRaysForMerge;
|
---|
[1021] | 692 |
|
---|
[1002] | 693 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 694 | bool mMergeViewCells;
|
---|
[697] | 695 |
|
---|
| 696 | /// the width of the box filter
|
---|
| 697 | float mFilterWidth;
|
---|
[1570] | 698 | /// Maximal size of the filter in terms of contributing view cells
|
---|
[697] | 699 | int mMaxFilterSize;
|
---|
[1570] | 700 |
|
---|
[1576] | 701 | // only for debugging
|
---|
| 702 | VssRayContainer storedRays;
|
---|
[1545] | 703 | //////////////////
|
---|
[487] | 704 | //-- visualization options
|
---|
| 705 |
|
---|
[1002] | 706 | /// color code for view cells visualization
|
---|
[1570] | 707 | bool mShowVisualization;
|
---|
[487] | 708 | int mColorCode;
|
---|
| 709 | bool mExportGeometry;
|
---|
| 710 | bool mExportRays;
|
---|
[517] | 711 | bool mViewCellsFinished;
|
---|
[664] | 712 | bool mEvaluateViewCells;
|
---|
[728] | 713 | int mRenderCostEvaluationType;
|
---|
[844] | 714 |
|
---|
| 715 | /// if pvs should be exported with view cells
|
---|
| 716 | bool mExportPvs;
|
---|
[1155] | 717 |
|
---|
[1545] | 718 | bool mUsePredefinedViewCells;
|
---|
[440] | 719 | };
|
---|
| 720 |
|
---|
[441] | 721 |
|
---|
[1545] | 722 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 723 | */
|
---|
| 724 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 725 | {
|
---|
| 726 |
|
---|
| 727 | public:
|
---|
[485] | 728 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 729 | used to construct the bsp tree.
|
---|
| 730 | */
|
---|
[1264] | 731 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 732 |
|
---|
[477] | 733 | ~BspViewCellsManager();
|
---|
[1582] | 734 |
|
---|
[574] | 735 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 736 | const VssRayContainer &rays);
|
---|
[440] | 737 |
|
---|
| 738 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 739 | const VssRayContainer &rays);
|
---|
[440] | 740 |
|
---|
| 741 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 742 | const VssRayContainer &sampleRays);
|
---|
[440] | 743 |
|
---|
| 744 | int GetType() const;
|
---|
| 745 |
|
---|
| 746 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 747 |
|
---|
| 748 | bool ViewCellsConstructed() const;
|
---|
| 749 |
|
---|
[475] | 750 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 751 |
|
---|
[468] | 752 | int CastLineSegment(const Vector3 &origin,
|
---|
| 753 | const Vector3 &termination,
|
---|
| 754 | ViewCellContainer &viewcells);
|
---|
| 755 |
|
---|
[1294] | 756 | /** Returns the probability that the view point lies
|
---|
| 757 | in this view cells.
|
---|
| 758 | */
|
---|
[471] | 759 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 760 |
|
---|
[1294] | 761 | /** Get a viewcell containing the specified point.
|
---|
[879] | 762 | */
|
---|
| 763 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 764 |
|
---|
[1294] | 765 | /** Creates mesh for this view cell.
|
---|
| 766 | */
|
---|
[503] | 767 | void CreateMesh(ViewCell *vc);
|
---|
| 768 |
|
---|
[1416] | 769 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 770 | ViewCell *vc,
|
---|
| 771 | const AxisAlignedBox3 *box,
|
---|
| 772 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 773 | ) const;
|
---|
[580] | 774 |
|
---|
[587] | 775 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 776 | vector<MergeCandidate> &candidates);
|
---|
[547] | 777 |
|
---|
[587] | 778 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 779 |
|
---|
[1416] | 780 | bool ExportViewCells(const string filename,
|
---|
| 781 | const bool exportPvs,
|
---|
| 782 | const ObjectContainer &objects);
|
---|
[590] | 783 |
|
---|
[752] | 784 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 785 | */
|
---|
[650] | 786 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 787 |
|
---|
[1570] | 788 | void ExportSingleViewCells(
|
---|
| 789 | const ObjectContainer &objects,
|
---|
| 790 | const int maxViewCells,
|
---|
| 791 | const bool sortViewCells,
|
---|
| 792 | const bool exportPvs,
|
---|
| 793 | const bool exportRays,
|
---|
| 794 | const int maxRays,
|
---|
| 795 | const string prefix,
|
---|
| 796 | VssRayContainer *visRays = NULL);
|
---|
[1545] | 797 |
|
---|
[440] | 798 | protected:
|
---|
| 799 |
|
---|
[480] | 800 | void CollectViewCells();
|
---|
[547] | 801 |
|
---|
[440] | 802 | /// the BSP tree.
|
---|
| 803 | BspTree *mBspTree;
|
---|
[475] | 804 | vector<BspRay *> mBspRays;
|
---|
[440] | 805 |
|
---|
| 806 | private:
|
---|
| 807 |
|
---|
[1545] | 808 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 809 | */
|
---|
| 810 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
| 811 |
|
---|
[440] | 812 | /** Exports visualization of the BSP splits.
|
---|
| 813 | */
|
---|
[477] | 814 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 815 |
|
---|
[1002] | 816 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 817 | */
|
---|
[693] | 818 | void TestSubdivision();
|
---|
[440] | 819 | };
|
---|
| 820 |
|
---|
[1545] | 821 |
|
---|
[440] | 822 | /**
|
---|
| 823 | Manages different higher order operations on the KD type view cells.
|
---|
| 824 | */
|
---|
| 825 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 826 | {
|
---|
| 827 |
|
---|
| 828 | public:
|
---|
| 829 |
|
---|
[1264] | 830 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 831 |
|
---|
[574] | 832 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 833 | const VssRayContainer &rays);
|
---|
[440] | 834 |
|
---|
[478] | 835 | int CastLineSegment(const Vector3 &origin,
|
---|
| 836 | const Vector3 &termination,
|
---|
| 837 | ViewCellContainer &viewcells);
|
---|
[440] | 838 |
|
---|
| 839 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 840 | const VssRayContainer &rays);
|
---|
[440] | 841 |
|
---|
| 842 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 843 | const VssRayContainer &sampleRays);
|
---|
[440] | 844 |
|
---|
| 845 | int GetType() const;
|
---|
| 846 |
|
---|
| 847 | bool ViewCellsConstructed() const;
|
---|
| 848 |
|
---|
[580] | 849 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 850 |
|
---|
[452] | 851 | /** Prints out statistics of this approach.
|
---|
| 852 | */
|
---|
[503] | 853 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 854 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 855 | { return NULL; }
|
---|
[452] | 856 |
|
---|
[503] | 857 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 858 |
|
---|
[503] | 859 | void CreateMesh(ViewCell *vc);
|
---|
| 860 |
|
---|
[1416] | 861 | void ExportViewCellGeometry(
|
---|
| 862 | Exporter *exporter,
|
---|
| 863 | ViewCell *vc,
|
---|
| 864 | const AxisAlignedBox3 *box,
|
---|
| 865 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 866 | ) const;
|
---|
[547] | 867 |
|
---|
[1416] | 868 |
|
---|
[591] | 869 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 870 | vector<MergeCandidate> &candidates);
|
---|
[580] | 871 |
|
---|
[1570] | 872 | void ExportSingleViewCells(
|
---|
| 873 | const ObjectContainer &objects,
|
---|
| 874 | const int maxViewCells,
|
---|
| 875 | const bool sortViewCells,
|
---|
| 876 | const bool exportPvs,
|
---|
| 877 | const bool exportRays,
|
---|
| 878 | const int maxRays,
|
---|
| 879 | const string prefix,
|
---|
| 880 | VssRayContainer *visRays = NULL);
|
---|
[752] | 881 |
|
---|
[440] | 882 | protected:
|
---|
| 883 |
|
---|
[580] | 884 | /** Collects view cells from a hierarchy.
|
---|
| 885 | */
|
---|
[480] | 886 | void CollectViewCells();
|
---|
[580] | 887 |
|
---|
[480] | 888 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 889 |
|
---|
[1570] | 890 | ////////////////////////////////////////
|
---|
[440] | 891 |
|
---|
[480] | 892 | /// the BSP tree.
|
---|
| 893 | KdTree *mKdTree;
|
---|
[440] | 894 |
|
---|
[480] | 895 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 896 | int mKdPvsDepth;
|
---|
[938] | 897 |
|
---|
| 898 |
|
---|
[440] | 899 | };
|
---|
| 900 |
|
---|
[1570] | 901 |
|
---|
| 902 | /** Manages different higher order operations on the view cells.
|
---|
[442] | 903 | */
|
---|
| 904 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 905 | {
|
---|
| 906 |
|
---|
| 907 | public:
|
---|
| 908 |
|
---|
[1264] | 909 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 910 | ~VspBspViewCellsManager();
|
---|
[442] | 911 |
|
---|
[574] | 912 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 913 | const VssRayContainer &rays);
|
---|
[442] | 914 |
|
---|
| 915 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 916 | const VssRayContainer &rays);
|
---|
[442] | 917 |
|
---|
| 918 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 919 | const VssRayContainer &sampleRays);
|
---|
[442] | 920 |
|
---|
| 921 | int GetType() const;
|
---|
| 922 |
|
---|
| 923 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 924 |
|
---|
| 925 | bool ViewCellsConstructed() const;
|
---|
| 926 |
|
---|
[468] | 927 |
|
---|
| 928 | int CastLineSegment(const Vector3 &origin,
|
---|
| 929 | const Vector3 &termination,
|
---|
| 930 | ViewCellContainer &viewcells);
|
---|
[452] | 931 |
|
---|
[471] | 932 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 933 |
|
---|
[879] | 934 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 935 |
|
---|
[487] | 936 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 937 |
|
---|
[490] | 938 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 939 |
|
---|
| 940 | void CreateMesh(ViewCell *vc);
|
---|
| 941 |
|
---|
[1416] | 942 | bool ExportViewCells(
|
---|
| 943 | const string filename,
|
---|
| 944 | const bool exportPvs,
|
---|
| 945 | const ObjectContainer &objects);
|
---|
[508] | 946 |
|
---|
[532] | 947 | int CastBeam(Beam &beam);
|
---|
[1416] | 948 |
|
---|
| 949 | void ExportViewCellGeometry(
|
---|
| 950 | Exporter *exporter,
|
---|
| 951 | ViewCell *vc,
|
---|
| 952 | const AxisAlignedBox3 *box,
|
---|
| 953 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 954 | ) const;
|
---|
[532] | 955 |
|
---|
[547] | 956 |
|
---|
[555] | 957 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 958 |
|
---|
[580] | 959 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
---|
| 960 |
|
---|
[1570] | 961 | void ExportSingleViewCells(
|
---|
| 962 | const ObjectContainer &objects,
|
---|
| 963 | const int maxViewCells,
|
---|
| 964 | const bool sortViewCells,
|
---|
| 965 | const bool exportPvs,
|
---|
| 966 | const bool exportRays,
|
---|
| 967 | const int maxRays,
|
---|
| 968 | const string prefix,
|
---|
| 969 | VssRayContainer *visRays = NULL);
|
---|
| 970 |
|
---|
| 971 |
|
---|
[442] | 972 | protected:
|
---|
[475] | 973 |
|
---|
[697] | 974 | int ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const;
|
---|
[651] | 975 |
|
---|
[1021] | 976 | /** Merges view cells according to some criteria
|
---|
[442] | 977 | */
|
---|
[508] | 978 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 979 | const ObjectContainer &objects);
|
---|
[503] | 980 |
|
---|
[564] | 981 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 982 |
|
---|
[480] | 983 | void CollectViewCells();
|
---|
| 984 |
|
---|
[482] | 985 | /** Returns maximal depth difference of view cell
|
---|
| 986 | leaves in tree.
|
---|
| 987 | */
|
---|
| 988 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 989 |
|
---|
[752] | 990 | /** Prepare view cells for use after loading them from disc.
|
---|
| 991 | */
|
---|
[577] | 992 | void PrepareLoadedViewCells();
|
---|
| 993 |
|
---|
[752] | 994 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 995 | */
|
---|
[650] | 996 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 997 |
|
---|
[979] | 998 | /// HACK for testing visibility filter functionality
|
---|
[697] | 999 | void TestFilter(const ObjectContainer &objects);
|
---|
| 1000 |
|
---|
[979] | 1001 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 1002 | from point queries.
|
---|
| 1003 | */
|
---|
| 1004 | void VisualizeWithFromPointQueries();
|
---|
[697] | 1005 |
|
---|
[991] | 1006 | /** Evaluate from point queries for the current scene.
|
---|
| 1007 | */
|
---|
| 1008 | void EvalFromPointQueries();
|
---|
[979] | 1009 |
|
---|
[1021] | 1010 | /** Exports visualization of the BSP splits.
|
---|
| 1011 | */
|
---|
| 1012 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 1013 | const VssRayContainer &rays);
|
---|
[991] | 1014 |
|
---|
[442] | 1015 | /// the view space partition BSP tree.
|
---|
| 1016 | VspBspTree *mVspBspTree;
|
---|
| 1017 |
|
---|
[591] | 1018 |
|
---|
[442] | 1019 | private:
|
---|
| 1020 |
|
---|
[1021] | 1021 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 1022 | */
|
---|
[1021] | 1023 | void TestSubdivision();
|
---|
| 1024 | };
|
---|
[442] | 1025 |
|
---|
[1662] | 1026 | #define TEST_EVALUATION 0
|
---|
[1021] | 1027 |
|
---|
| 1028 | /**
|
---|
| 1029 | Manages different higher order operations on the view cells.
|
---|
| 1030 | */
|
---|
| 1031 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 1032 | {
|
---|
| 1033 |
|
---|
| 1034 | public:
|
---|
| 1035 |
|
---|
[1278] | 1036 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 1037 |
|
---|
[1021] | 1038 | ~VspOspViewCellsManager();
|
---|
| 1039 |
|
---|
| 1040 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1041 | const VssRayContainer &rays);
|
---|
| 1042 |
|
---|
| 1043 | int PostProcess(const ObjectContainer &objects,
|
---|
| 1044 | const VssRayContainer &rays);
|
---|
| 1045 |
|
---|
| 1046 | void Visualize(const ObjectContainer &objects,
|
---|
| 1047 | const VssRayContainer &sampleRays);
|
---|
| 1048 |
|
---|
| 1049 | int GetType() const;
|
---|
| 1050 |
|
---|
| 1051 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1052 |
|
---|
| 1053 | bool ViewCellsConstructed() const;
|
---|
| 1054 |
|
---|
| 1055 |
|
---|
| 1056 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1057 | const Vector3 &termination,
|
---|
| 1058 | ViewCellContainer &viewcells);
|
---|
| 1059 |
|
---|
| 1060 | float GetProbability(ViewCell *viewCell);
|
---|
| 1061 |
|
---|
| 1062 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
| 1063 |
|
---|
| 1064 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1065 |
|
---|
| 1066 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1067 |
|
---|
| 1068 | void CreateMesh(ViewCell *vc);
|
---|
| 1069 |
|
---|
[1027] | 1070 | bool ExportViewCells(const string filename,
|
---|
| 1071 | const bool exportPvs,
|
---|
| 1072 | const ObjectContainer &objects);
|
---|
[1021] | 1073 |
|
---|
| 1074 | int CastBeam(Beam &beam);
|
---|
| 1075 |
|
---|
| 1076 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1077 |
|
---|
[1159] | 1078 | /** Stores sample contribution for kd cells or objects.
|
---|
| 1079 | */
|
---|
| 1080 | virtual float ComputeSampleContribution(VssRay &ray,
|
---|
| 1081 | const bool addRays,
|
---|
| 1082 | const bool storeViewCells);
|
---|
[1021] | 1083 |
|
---|
[1201] | 1084 | ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 1085 | ObjectContainer *objects,
|
---|
| 1086 | const bool finalizeViewCells,
|
---|
| 1087 | BoundingBoxConverter *bconverter);
|
---|
| 1088 |
|
---|
[1259] | 1089 | bool AddSampleToPvs(
|
---|
| 1090 | Intersectable *obj,
|
---|
| 1091 | const Vector3 &hitPoint,
|
---|
| 1092 | ViewCell *vc,
|
---|
| 1093 | const float pdf,
|
---|
| 1094 | float &contribution) const;
|
---|
[1201] | 1095 |
|
---|
[1570] | 1096 | void ExportSingleViewCells(
|
---|
| 1097 | const ObjectContainer &objects,
|
---|
| 1098 | const int maxViewCells,
|
---|
| 1099 | const bool sortViewCells,
|
---|
| 1100 | const bool exportPvs,
|
---|
| 1101 | const bool exportRays,
|
---|
| 1102 | const int maxRays,
|
---|
| 1103 | const string prefix,
|
---|
| 1104 | VssRayContainer *visRays = NULL);
|
---|
| 1105 |
|
---|
[1021] | 1106 | protected:
|
---|
[1180] | 1107 |
|
---|
[1184] | 1108 | #if TEST_EVALUATION
|
---|
[1178] | 1109 | virtual void EvalViewCellPartition();
|
---|
[1179] | 1110 | #endif
|
---|
[1416] | 1111 |
|
---|
[1027] | 1112 | /** Exports view cell geometry.
|
---|
| 1113 | */
|
---|
[1416] | 1114 | void ExportViewCellGeometry(
|
---|
| 1115 | Exporter *exporter,
|
---|
[1074] | 1116 | ViewCell *vc,
|
---|
[1416] | 1117 | const AxisAlignedBox3 *box,
|
---|
| 1118 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 1119 | ) const;
|
---|
[1027] | 1120 |
|
---|
[1416] | 1121 | int ComputeBoxIntersections(
|
---|
| 1122 | const AxisAlignedBox3 &box,
|
---|
[1074] | 1123 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1124 |
|
---|
| 1125 | void CollectViewCells();
|
---|
| 1126 |
|
---|
| 1127 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1128 | */
|
---|
| 1129 | void PrepareLoadedViewCells();
|
---|
| 1130 |
|
---|
| 1131 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1132 | */
|
---|
| 1133 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
|
---|
| 1134 |
|
---|
[1074] | 1135 | /** Exports visualization of the PVS.
|
---|
[442] | 1136 | */
|
---|
[1184] | 1137 | void ExportPvs(
|
---|
| 1138 | const ObjectContainer &objects,
|
---|
[1074] | 1139 | const VssRayContainer &rays);
|
---|
[442] | 1140 |
|
---|
[1021] | 1141 |
|
---|
[1168] | 1142 | /////////////////////////////////////////
|
---|
[1259] | 1143 |
|
---|
[1027] | 1144 | HierarchyManager *mHierarchyManager;
|
---|
[442] | 1145 | };
|
---|
| 1146 |
|
---|
[575] | 1147 |
|
---|
[860] | 1148 | }
|
---|
| 1149 |
|
---|
[440] | 1150 | #endif
|
---|